17964 files changed, 161034 insertions, 200695 deletions

diff --git a/.mailmap b/.mailmap
index 5273cfd70ad6..c021f29779a7 100644
--- a/.mailmap
+++ b/.mailmap
@@ -15,6 +15,7 @@ Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>
 Alan Cox <alan@lxorguk.ukuu.org.uk>
 Alan Cox <root@hraefn.swansea.linux.org.uk>
 Aleksey Gorelov <aleksey_gorelov@phoenix.com>
+Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com>
 Al Viro <viro@ftp.linux.org.uk>
 Al Viro <viro@zenIV.linux.org.uk>
 Andreas Herrmann <aherrman@de.ibm.com>
@@ -43,6 +44,7 @@ Corey Minyard <minyard@acm.org>
 Damian Hobson-Garcia <dhobsong@igel.co.jp>
 David Brownell <david-b@pacbell.net>
 David Woodhouse <dwmw2@shinybook.infradead.org>
+Deng-Cheng Zhu <dengcheng.zhu@mips.com> <dengcheng.zhu@imgtec.com>
 Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
 Domen Puncer <domen@coderock.org>
 Douglas Gilbert <dougg@torque.net>
@@ -68,6 +70,8 @@ Jacob Shin <Jacob.Shin@amd.com>
 James Bottomley <jejb@mulgrave.(none)>
 James Bottomley <jejb@titanic.il.steeleye.com>
 James E Wilson <wilson@specifix.com>
+James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
+James Hogan <jhogan@kernel.org> <james@albanarts.com>
 James Ketrenos <jketreno@io.(none)>
 Javi Merino <javi.merino@kernel.org> <javi.merino@arm.com>
 <javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
@@ -98,6 +102,8 @@ Leonid I Ananiev <leonid.i.ananiev@intel.com>
 Linas Vepstas <linas@austin.ibm.com>
 Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@web.de>
 Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
+Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
+Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
 Mark Brown <broonie@sirena.org.uk>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@theobroma-systems.com>
 Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
@@ -112,9 +118,11 @@ Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
 Matt Ranostay <mranostay@gmail.com> Matthew Ranostay <mranostay@embeddedalley.com>
 Matt Ranostay <mranostay@gmail.com> <matt.ranostay@intel.com>
 Matt Ranostay <matt.ranostay@konsulko.com> <matt@ranostay.consulting>
+Matt Redfearn <matt.redfearn@mips.com> <matt.redfearn@imgtec.com>
 Mayuresh Janorkar <mayur@ti.com>
 Michael Buesch <m@bues.ch>
 Michel Dänzer <michel@tungstengraphics.com>
+Miodrag Dinic <miodrag.dinic@mips.com> <miodrag.dinic@imgtec.com>
 Mitesh shah <mshah@teja.com>
 Mohit Kumar <mohit.kumar@st.com> <mohit.kumar.dhaka@gmail.com>
 Morten Welinder <terra@gnome.org>
@@ -125,6 +133,7 @@ Mythri P K <mythripk@ti.com>
 Nguyen Anh Quynh <aquynh@gmail.com>
 Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
 Patrick Mochel <mochel@digitalimplant.org>
+Paul Burton <paul.burton@mips.com> <paul.burton@imgtec.com>
 Peter A Jonsson <pj@ludd.ltu.se>
 Peter Oruba <peter@oruba.de>
 Peter Oruba <peter.oruba@amd.com>
diff --git a/CREDITS b/CREDITS
index 9fbd2c77b546..a3ec0c744172 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2113,6 +2113,10 @@ S: J. Obrechtstr 23
 S: NL-5216 GP 's-Hertogenbosch
 S: The Netherlands
 
+N: Ashley Lai
+E: ashleydlai@gmail.com
+D: IBM VTPM driver
+
 N: Savio Lam
 E: lam836@cs.cuhk.hk
 D: Author of the dialog utility, foundation
@@ -3333,6 +3337,10 @@ S: Braunschweiger Strasse 79
 S: 31134 Hildesheim
 S: Germany
 
+N: Marcel Selhorst
+E: tpmdd@selhorst.net
+D: TPM driver
+
 N: Darren Senn
 E: sinster@darkwater.com
 D: Whatever I notice needs doing (so far: itimers, /proc)
@@ -4128,7 +4136,6 @@ D: MD driver
 D: EISA/sysfs subsystem
 S: France
 
-
 # Don't add your name here, unless you really _are_ after Marc
 # alphabetically. Leonard used to be very proud of being the 
 # last entry, and he'll get positively pissed if he can't even
diff --git a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads b/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads
deleted file mode 100644
index b0b0eeb20fe3..000000000000
--- a/Documentation/ABI/obsolete/proc-sys-vm-nr_pdflush_threads
+++ /dev/null
@@ -1,5 +0,0 @@
-What:		/proc/sys/vm/nr_pdflush_threads
-Date:		June 2012
-Contact:	Wanpeng Li <liwp@linux.vnet.ibm.com>
-Description: Since pdflush is replaced by per-BDI flusher, the interface of old pdflush
-             exported in /proc/sys/vm/ should be removed.
diff --git a/Documentation/ABI/stable/sysfs-devices b/Documentation/ABI/stable/sysfs-devices
index 35c457f8ce73..4404bd9b96c1 100644
--- a/Documentation/ABI/stable/sysfs-devices
+++ b/Documentation/ABI/stable/sysfs-devices
@@ -1,5 +1,5 @@
 # Note: This documents additional properties of any device beyond what
-# is documented in Documentation/sysfs-rules.txt
+# is documented in Documentation/admin-guide/sysfs-rules.rst
 
 What:		/sys/devices/*/of_node
 Date:		February 2015
diff --git a/Documentation/ABI/testing/evm b/Documentation/ABI/testing/evm
index 8374d4557e5d..9578247e1792 100644
--- a/Documentation/ABI/testing/evm
+++ b/Documentation/ABI/testing/evm
@@ -7,17 +7,37 @@ Description:
 		HMAC-sha1 value across the extended attributes, storing the
 		value as the extended attribute 'security.evm'.
 
-		EVM depends on the Kernel Key Retention System to provide it
-		with a trusted/encrypted key for the HMAC-sha1 operation.
-		The key is loaded onto the root's keyring using keyctl.  Until
-		EVM receives notification that the key has been successfully
-		loaded onto the keyring (echo 1 > <securityfs>/evm), EVM
-		can not create or validate the 'security.evm' xattr, but
-		returns INTEGRITY_UNKNOWN.  Loading the key and signaling EVM
-		should be done as early as possible.  Normally this is done
-		in the initramfs, which has already been measured as part
-		of the trusted boot.  For more information on creating and
-		loading existing trusted/encrypted keys, refer to:
-		Documentation/keys-trusted-encrypted.txt.  (A sample dracut
-		patch, which loads the trusted/encrypted key and enables
-		EVM, is available from http://linux-ima.sourceforge.net/#EVM.)
+		EVM supports two classes of security.evm. The first is
+		an HMAC-sha1 generated locally with a
+		trusted/encrypted key stored in the Kernel Key
+		Retention System. The second is a digital signature
+		generated either locally or remotely using an
+		asymmetric key. These keys are loaded onto root's
+		keyring using keyctl, and EVM is then enabled by
+		echoing a value to <securityfs>/evm:
+
+		1: enable HMAC validation and creation
+		2: enable digital signature validation
+		3: enable HMAC and digital signature validation and HMAC
+		   creation
+
+		Further writes will be blocked if HMAC support is enabled or
+		if bit 32 is set:
+
+		echo 0x80000002 ><securityfs>/evm
+
+		will enable digital signature validation and block
+		further writes to <securityfs>/evm.
+
+		Until this is done, EVM can not create or validate the
+		'security.evm' xattr, but returns INTEGRITY_UNKNOWN.
+		Loading keys and signaling EVM should be done as early
+		as possible.  Normally this is done in the initramfs,
+		which has already been measured as part of the trusted
+		boot.  For more information on creating and loading
+		existing trusted/encrypted keys, refer to:
+
+		Documentation/security/keys/trusted-encrypted.rst. Both dracut
+		(via 97masterkey and 98integrity) and systemd (via
+		core/ima-setup) have support for loading keys at boot
+		time.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 7eead5f97e02..2e3f919485f4 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -522,6 +522,7 @@ Description:
 		Specifies the output powerdown mode.
 		DAC output stage is disconnected from the amplifier and
 		1kohm_to_gnd: connected to ground via an 1kOhm resistor,
+		2.5kohm_to_gnd: connected to ground via a 2.5kOhm resistor,
 		6kohm_to_gnd: connected to ground via a 6kOhm resistor,
 		20kohm_to_gnd: connected to ground via a 20kOhm resistor,
 		90kohm_to_gnd: connected to ground via a 90kOhm resistor,
@@ -1242,9 +1243,9 @@ What:		/sys/.../iio:deviceX/in_distance_raw
 KernelVersion:	4.0
 Contact:	linux-iio@vger.kernel.org
 Description:
-		This attribute is used to read the distance covered by the user
-		since the last reboot while activated. Units after application
-		of scale are meters.
+		This attribute is used to read the measured distance to an object
+		or the distance covered by the user since the last reboot while
+		activated. Units after application of scale are meters.
 
 What:		/sys/bus/iio/devices/iio:deviceX/store_eeprom
 KernelVersion:	3.4.0
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
index 297b9720f024..0e95c2ca105c 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
+++ b/Documentation/ABI/testing/sysfs-bus-iio-cros-ec
@@ -16,3 +16,13 @@ Description:
                 the motion sensor is placed. For example, in a laptop a motion
                 sensor can be located on the base or on the lid. Current valid
 		values are 'base' and 'lid'.
+
+What:		/sys/bus/iio/devices/iio:deviceX/id
+Date:		Septembre 2017
+KernelVersion:	4.14
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is exposed by the CrOS EC legacy accelerometer
+		driver and represents the sensor ID as exposed by the EC. This
+		ID is used by the Android sensor service hardware abstraction
+		layer (sensor HAL) through the Android container on ChromeOS.
diff --git a/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935 b/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
index 33e96f740639..147d4e8a1403 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
+++ b/Documentation/ABI/testing/sysfs-bus-iio-proximity-as3935
@@ -14,3 +14,11 @@ Description:
 		Show or set the gain boost of the amp, from 0-31 range.
 		18 = indoors (default)
 		14 = outdoors
+
+What		/sys/bus/iio/devices/iio:deviceX/noise_level_tripped
+Date:		May 2017
+KernelVersion:	4.13
+Contact:	Matt Ranostay <matt.ranostay@konsulko.com>
+Description:
+		When 1 the noise level is over the trip level and not reporting
+		valid data
diff --git a/Documentation/ABI/testing/sysfs-bus-mmc b/Documentation/ABI/testing/sysfs-bus-mmc
new file mode 100644
index 000000000000..519f028d19cc
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-mmc
@@ -0,0 +1,4 @@
+What:		/sys/bus/mmc/devices/.../rev
+Date:		October 2017
+Contact:	Jin Qian <jinqian@android.com>
+Description:	Extended CSD revision number
diff --git a/Documentation/ABI/testing/sysfs-class-remoteproc b/Documentation/ABI/testing/sysfs-class-remoteproc
index d188afebc8ba..c3afe9fab646 100644
--- a/Documentation/ABI/testing/sysfs-class-remoteproc
+++ b/Documentation/ABI/testing/sysfs-class-remoteproc
@@ -1,6 +1,6 @@
 What:		/sys/class/remoteproc/.../firmware
 Date:		October 2016
-Contact:	Matt Redfearn <matt.redfearn@imgtec.com>
+Contact:	Matt Redfearn <matt.redfearn@mips.com>
 Description:	Remote processor firmware
 
 		Reports the name of the firmware currently loaded to the
@@ -11,7 +11,7 @@ Description:	Remote processor firmware
 
 What:		/sys/class/remoteproc/.../state
 Date:		October 2016
-Contact:	Matt Redfearn <matt.redfearn@imgtec.com>
+Contact:	Matt Redfearn <matt.redfearn@mips.com>
 Description:	Remote processor state
 
 		Reports the state of the remote processor, which will be one of:
diff --git a/Documentation/ABI/testing/sysfs-devices-power b/Documentation/ABI/testing/sysfs-devices-power
index 676fdf5f2a99..80a00f7b6667 100644
--- a/Documentation/ABI/testing/sysfs-devices-power
+++ b/Documentation/ABI/testing/sysfs-devices-power
@@ -211,7 +211,9 @@ Description:
 		device, after it has been suspended at run time, from a resume
 		request to the moment the device will be ready to process I/O,
 		in microseconds.  If it is equal to 0, however, this means that
-		the PM QoS resume latency may be arbitrary.
+		the PM QoS resume latency may be arbitrary and the special value
+		"n/a" means that user space cannot accept any resume latency at
+		all for the given device.
 
 		Not all drivers support this attribute.  If it isn't supported,
 		it is not present.
@@ -258,19 +260,3 @@ Description:
 
 		This attribute has no effect on system-wide suspend/resume and
 		hibernation.
-
-What:		/sys/devices/.../power/pm_qos_remote_wakeup
-Date:		September 2012
-Contact:	Rafael J. Wysocki <rjw@rjwysocki.net>
-Description:
-		The /sys/devices/.../power/pm_qos_remote_wakeup attribute
-		is used for manipulating the PM QoS "remote wakeup required"
-		flag.  If set, this flag indicates to the kernel that the
-		device is a source of user events that have to be signaled from
-		its low-power states.
-
-		Not all drivers support this attribute.  If it isn't supported,
-		it is not present.
-
-		This attribute has no effect on system-wide suspend/resume and
-		hibernation.
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index f3d5817c4ef0..d6d862db3b5d 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -187,7 +187,8 @@ Description:	Processor frequency boosting control
 		This switch controls the boost setting for the whole system.
 		Boosting allows the CPU and the firmware to run at a frequency
 		beyound it's nominal limit.
-		More details can be found in Documentation/cpu-freq/boost.txt
+		More details can be found in
+		Documentation/admin-guide/pm/cpufreq.rst
 
 
 What:		/sys/devices/system/cpu/cpu#/crash_notes
@@ -223,7 +224,8 @@ Description:	Parameters for the Intel P-state driver
 		no_turbo: limits the driver to selecting P states below the turbo
 		frequency range.
 
-		More details can be found in Documentation/cpu-freq/intel-pstate.txt
+		More details can be found in
+		Documentation/admin-guide/pm/intel_pstate.rst
 
 What:		/sys/devices/system/cpu/cpu*/cache/index*/<set_of_attributes_mentioned_below>
 Date:		July 2014(documented, existed before August 2008)
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-swap b/Documentation/ABI/testing/sysfs-kernel-mm-swap
index 587db52084c7..94672016c268 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-swap
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-swap
@@ -14,13 +14,3 @@ Description:	Enable/disable VMA based swap readahead.
 		still used for tmpfs etc. other users.  If set to
 		false, the global swap readahead algorithm will be
 		used for all swappable pages.
-
-What:		/sys/kernel/mm/swap/vma_ra_max_order
-Date:		August 2017
-Contact:	Linux memory management mailing list <linux-mm@kvack.org>
-Description:	The max readahead size in order for VMA based swap readahead
-
-		VMA based swap readahead algorithm will readahead at
-		most 1 << max_order pages for each readahead.  The
-		real readahead size for each readahead will be scaled
-		according to the estimation algorithm.
diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index 713cab1d5f12..1e0d1dac706b 100644
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -18,7 +18,8 @@ Description:
 		Writing one of the above strings to this file causes the system
 		to transition into the corresponding state, if available.
 
-		See Documentation/power/states.txt for more information.
+		See Documentation/admin-guide/pm/sleep-states.rst for more
+		information.
 
 What:		/sys/power/mem_sleep
 Date:		November 2016
@@ -35,7 +36,8 @@ Description:
 		represented by it to be used on subsequent attempts to suspend
 		the system.
 
-		See Documentation/power/states.txt for more information.
+		See Documentation/admin-guide/pm/sleep-states.rst for more
+		information.
 
 What:		/sys/power/disk
 Date:		September 2006
@@ -127,7 +129,7 @@ Description:
 
 What;		/sys/power/pm_trace_dev_match
 Date:		October 2010
-Contact:	James Hogan <james@albanarts.com>
+Contact:	James Hogan <jhogan@kernel.org>
 Description:
 		The /sys/power/pm_trace_dev_match file contains the name of the
 		device associated with the last PM event point saved in the RTC
diff --git a/Documentation/Makefile b/Documentation/Makefile
index 85f7856f0092..2ca77ad0f238 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -97,6 +97,9 @@ endif # HAVE_SPHINX
 # The following targets are independent of HAVE_SPHINX, and the rules should
 # work or silently pass without Sphinx.
 
+refcheckdocs:
+	$(Q)cd $(srctree);scripts/documentation-file-ref-check
+
 cleandocs:
 	$(Q)rm -rf $(BUILDDIR)
 	$(Q)$(MAKE) BUILDDIR=$(abspath $(BUILDDIR)) $(build)=Documentation/media clean
@@ -109,6 +112,7 @@ dochelp:
 	@echo  '  epubdocs        - EPUB'
 	@echo  '  xmldocs         - XML'
 	@echo  '  linkcheckdocs   - check for broken external links (will connect to external hosts)'
+	@echo  '  refcheckdocs    - check for references to non-existing files under Documentation'
 	@echo  '  cleandocs       - clean all generated files'
 	@echo
 	@echo  '  make SPHINXDIRS="s1 s2" [target] Generate only docs of folder s1, s2'
@@ -116,3 +120,5 @@ dochelp:
 	@echo
 	@echo  '  make SPHINX_CONF={conf-file} [target] use *additional* sphinx-build'
 	@echo  '  configuration. This is e.g. useful to build with nit-picking config.'
+	@echo
+	@echo  '  Default location for the generated documents is Documentation/output'
diff --git a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html
index e5d0bbd0230b..7394f034be65 100644
--- a/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html
+++ b/Documentation/RCU/Design/Expedited-Grace-Periods/Expedited-Grace-Periods.html
@@ -527,7 +527,7 @@ grace period also drove it to completion.
 This straightforward approach had the disadvantage of needing to
 account for POSIX signals sent to user tasks,
 so more recent implemementations use the Linux kernel's
-<a href="https://www.kernel.org/doc/Documentation/workqueue.txt">workqueues</a>.
+<a href="https://www.kernel.org/doc/Documentation/core-api/workqueue.rst">workqueues</a>.
 
 <p>
 The requesting task still does counter snapshotting and funnel-lock
diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html
new file mode 100644
index 000000000000..e5b42a798ff3
--- /dev/null
+++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Diagram.html
@@ -0,0 +1,9 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+        "http://www.w3.org/TR/html4/loose.dtd">
+        <html>
+        <head><title>A Diagram of TREE_RCU's Grace-Period Memory Ordering</title>
+        <meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
+
+<p><img src="TreeRCU-gp.svg" alt="TreeRCU-gp.svg">
+
+</body></html>
diff --git a/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html
new file mode 100644
index 000000000000..8651b0b4fd79
--- /dev/null
+++ b/Documentation/RCU/Design/Memory-Ordering/Tree-RCU-Memory-Ordering.html
@@ -0,0 +1,707 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
+        "http://www.w3.org/TR/html4/loose.dtd">
+        <html>
+        <head><title>A Tour Through TREE_RCU's Grace-Period Memory Ordering</title>
+        <meta HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
+
+           <p>August 8, 2017</p>
+           <p>This article was contributed by Paul E.&nbsp;McKenney</p>
+
+<h3>Introduction</h3>
+
+<p>This document gives a rough visual overview of how Tree RCU's
+grace-period memory ordering guarantee is provided.
+
+<ol>
+<li>	<a href="#What Is Tree RCU's Grace Period Memory Ordering Guarantee?">
+	What Is Tree RCU's Grace Period Memory Ordering Guarantee?</a>
+<li>	<a href="#Tree RCU Grace Period Memory Ordering Building Blocks">
+	Tree RCU Grace Period Memory Ordering Building Blocks</a>
+<li>	<a href="#Tree RCU Grace Period Memory Ordering Components">
+	Tree RCU Grace Period Memory Ordering Components</a>
+<li>	<a href="#Putting It All Together">Putting It All Together</a>
+</ol>
+
+<h3><a name="What Is Tree RCU's Grace Period Memory Ordering Guarantee?">
+What Is Tree RCU's Grace Period Memory Ordering Guarantee?</a></h3>
+
+<p>RCU grace periods provide extremely strong memory-ordering guarantees
+for non-idle non-offline code.
+Any code that happens after the end of a given RCU grace period is guaranteed
+to see the effects of all accesses prior to the beginning of that grace
+period that are within RCU read-side critical sections.
+Similarly, any code that happens before the beginning of a given RCU grace
+period is guaranteed to see the effects of all accesses following the end
+of that grace period that are within RCU read-side critical sections.
+
+<p>This guarantee is particularly pervasive for <tt>synchronize_sched()</tt>,
+for which RCU-sched read-side critical sections include any region
+of code for which preemption is disabled.
+Given that each individual machine instruction can be thought of as
+an extremely small region of preemption-disabled code, one can think of
+<tt>synchronize_sched()</tt> as <tt>smp_mb()</tt> on steroids.
+
+<p>RCU updaters use this guarantee by splitting their updates into
+two phases, one of which is executed before the grace period and
+the other of which is executed after the grace period.
+In the most common use case, phase one removes an element from
+a linked RCU-protected data structure, and phase two frees that element.
+For this to work, any readers that have witnessed state prior to the
+phase-one update (in the common case, removal) must not witness state
+following the phase-two update (in the common case, freeing).
+
+<p>The RCU implementation provides this guarantee using a network
+of lock-based critical sections, memory barriers, and per-CPU
+processing, as is described in the following sections.
+
+<h3><a name="Tree RCU Grace Period Memory Ordering Building Blocks">
+Tree RCU Grace Period Memory Ordering Building Blocks</a></h3>
+
+<p>The workhorse for RCU's grace-period memory ordering is the
+critical section for the <tt>rcu_node</tt> structure's
+<tt>-&gt;lock</tt>.
+These critical sections use helper functions for lock acquisition, including
+<tt>raw_spin_lock_rcu_node()</tt>,
+<tt>raw_spin_lock_irq_rcu_node()</tt>, and
+<tt>raw_spin_lock_irqsave_rcu_node()</tt>.
+Their lock-release counterparts are
+<tt>raw_spin_unlock_rcu_node()</tt>,
+<tt>raw_spin_unlock_irq_rcu_node()</tt>, and
+<tt>raw_spin_unlock_irqrestore_rcu_node()</tt>,
+respectively.
+For completeness, a
+<tt>raw_spin_trylock_rcu_node()</tt>
+is also provided.
+The key point is that the lock-acquisition functions, including
+<tt>raw_spin_trylock_rcu_node()</tt>, all invoke
+<tt>smp_mb__after_unlock_lock()</tt> immediately after successful
+acquisition of the lock.
+
+<p>Therefore, for any given <tt>rcu_node</tt> struction, any access
+happening before one of the above lock-release functions will be seen
+by all CPUs as happening before any access happening after a later
+one of the above lock-acquisition functions.
+Furthermore, any access happening before one of the
+above lock-release function on any given CPU will be seen by all
+CPUs as happening before any access happening after a later one
+of the above lock-acquisition functions executing on that same CPU,
+even if the lock-release and lock-acquisition functions are operating
+on different <tt>rcu_node</tt> structures.
+Tree RCU uses these two ordering guarantees to form an ordering
+network among all CPUs that were in any way involved in the grace
+period, including any CPUs that came online or went offline during
+the grace period in question.
+
+<p>The following litmus test exhibits the ordering effects of these
+lock-acquisition and lock-release functions:
+
+<pre>
+ 1 int x, y, z;
+ 2
+ 3 void task0(void)
+ 4 {
+ 5   raw_spin_lock_rcu_node(rnp);
+ 6   WRITE_ONCE(x, 1);
+ 7   r1 = READ_ONCE(y);
+ 8   raw_spin_unlock_rcu_node(rnp);
+ 9 }
+10
+11 void task1(void)
+12 {
+13   raw_spin_lock_rcu_node(rnp);
+14   WRITE_ONCE(y, 1);
+15   r2 = READ_ONCE(z);
+16   raw_spin_unlock_rcu_node(rnp);
+17 }
+18
+19 void task2(void)
+20 {
+21   WRITE_ONCE(z, 1);
+22   smp_mb();
+23   r3 = READ_ONCE(x);
+24 }
+25
+26 WARN_ON(r1 == 0 &amp;&amp; r2 == 0 &amp;&amp; r3 == 0);
+</pre>
+
+<p>The <tt>WARN_ON()</tt> is evaluated at &ldquo;the end of time&rdquo;,
+after all changes have propagated throughout the system.
+Without the <tt>smp_mb__after_unlock_lock()</tt> provided by the
+acquisition functions, this <tt>WARN_ON()</tt> could trigger, for example
+on PowerPC.
+The <tt>smp_mb__after_unlock_lock()</tt> invocations prevent this
+<tt>WARN_ON()</tt> from triggering.
+
+<p>This approach must be extended to include idle CPUs, which need
+RCU's grace-period memory ordering guarantee to extend to any
+RCU read-side critical sections preceding and following the current
+idle sojourn.
+This case is handled by calls to the strongly ordered
+<tt>atomic_add_return()</tt> read-modify-write atomic operation that
+is invoked within <tt>rcu_dynticks_eqs_enter()</tt> at idle-entry
+time and within <tt>rcu_dynticks_eqs_exit()</tt> at idle-exit time.
+The grace-period kthread invokes <tt>rcu_dynticks_snap()</tt> and
+<tt>rcu_dynticks_in_eqs_since()</tt> (both of which invoke
+an <tt>atomic_add_return()</tt> of zero) to detect idle CPUs.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	But what about CPUs that remain offline for the entire
+	grace period?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	Such CPUs will be offline at the beginning of the grace period,
+	so the grace period won't expect quiescent states from them.
+	Races between grace-period start and CPU-hotplug operations
+	are mediated by the CPU's leaf <tt>rcu_node</tt> structure's
+	<tt>-&gt;lock</tt> as described above.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<p>The approach must be extended to handle one final case, that
+of waking a task blocked in <tt>synchronize_rcu()</tt>.
+This task might be affinitied to a CPU that is not yet aware that
+the grace period has ended, and thus might not yet be subject to
+the grace period's memory ordering.
+Therefore, there is an <tt>smp_mb()</tt> after the return from
+<tt>wait_for_completion()</tt> in the <tt>synchronize_rcu()</tt>
+code path.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	What?  Where???
+	I don't see any <tt>smp_mb()</tt> after the return from
+	<tt>wait_for_completion()</tt>!!!
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	That would be because I spotted the need for that
+	<tt>smp_mb()</tt> during the creation of this documentation,
+	and it is therefore unlikely to hit mainline before v4.14.
+	Kudos to Lance Roy, Will Deacon, Peter Zijlstra, and
+	Jonathan Cameron for asking questions that sensitized me
+	to the rather elaborate sequence of events that demonstrate
+	the need for this memory barrier.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<p>Tree RCU's grace--period memory-ordering guarantees rely most
+heavily on the <tt>rcu_node</tt> structure's <tt>-&gt;lock</tt>
+field, so much so that it is necessary to abbreviate this pattern
+in the diagrams in the next section.
+For example, consider the <tt>rcu_prepare_for_idle()</tt> function
+shown below, which is one of several functions that enforce ordering
+of newly arrived RCU callbacks against future grace periods:
+
+<pre>
+ 1 static void rcu_prepare_for_idle(void)
+ 2 {
+ 3   bool needwake;
+ 4   struct rcu_data *rdp;
+ 5   struct rcu_dynticks *rdtp = this_cpu_ptr(&amp;rcu_dynticks);
+ 6   struct rcu_node *rnp;
+ 7   struct rcu_state *rsp;
+ 8   int tne;
+ 9
+10   if (IS_ENABLED(CONFIG_RCU_NOCB_CPU_ALL) ||
+11       rcu_is_nocb_cpu(smp_processor_id()))
+12     return;
+13   tne = READ_ONCE(tick_nohz_active);
+14   if (tne != rdtp-&gt;tick_nohz_enabled_snap) {
+15     if (rcu_cpu_has_callbacks(NULL))
+16       invoke_rcu_core();
+17     rdtp-&gt;tick_nohz_enabled_snap = tne;
+18     return;
+19   }
+20   if (!tne)
+21     return;
+22   if (rdtp-&gt;all_lazy &amp;&amp;
+23       rdtp-&gt;nonlazy_posted != rdtp-&gt;nonlazy_posted_snap) {
+24     rdtp-&gt;all_lazy = false;
+25     rdtp-&gt;nonlazy_posted_snap = rdtp-&gt;nonlazy_posted;
+26     invoke_rcu_core();
+27     return;
+28   }
+29   if (rdtp-&gt;last_accelerate == jiffies)
+30     return;
+31   rdtp-&gt;last_accelerate = jiffies;
+32   for_each_rcu_flavor(rsp) {
+33     rdp = this_cpu_ptr(rsp-&gt;rda);
+34     if (rcu_segcblist_pend_cbs(&amp;rdp-&gt;cblist))
+35       continue;
+36     rnp = rdp-&gt;mynode;
+37     raw_spin_lock_rcu_node(rnp);
+38     needwake = rcu_accelerate_cbs(rsp, rnp, rdp);
+39     raw_spin_unlock_rcu_node(rnp);
+40     if (needwake)
+41       rcu_gp_kthread_wake(rsp);
+42   }
+43 }
+</pre>
+
+<p>But the only part of <tt>rcu_prepare_for_idle()</tt> that really
+matters for this discussion are lines&nbsp;37&ndash;39.
+We will therefore abbreviate this function as follows:
+
+</p><p><img src="rcu_node-lock.svg" alt="rcu_node-lock.svg">
+
+<p>The box represents the <tt>rcu_node</tt> structure's <tt>-&gt;lock</tt>
+critical section, with the double line on top representing the additional
+<tt>smp_mb__after_unlock_lock()</tt>.
+
+<h3><a name="Tree RCU Grace Period Memory Ordering Components">
+Tree RCU Grace Period Memory Ordering Components</a></h3>
+
+<p>Tree RCU's grace-period memory-ordering guarantee is provided by
+a number of RCU components:
+
+<ol>
+<li>	<a href="#Callback Registry">Callback Registry</a>
+<li>	<a href="#Grace-Period Initialization">Grace-Period Initialization</a>
+<li>	<a href="#Self-Reported Quiescent States">
+	Self-Reported Quiescent States</a>
+<li>	<a href="#Dynamic Tick Interface">Dynamic Tick Interface</a>
+<li>	<a href="#CPU-Hotplug Interface">CPU-Hotplug Interface</a>
+<li>	<a href="Forcing Quiescent States">Forcing Quiescent States</a>
+<li>	<a href="Grace-Period Cleanup">Grace-Period Cleanup</a>
+<li>	<a href="Callback Invocation">Callback Invocation</a>
+</ol>
+
+<p>Each of the following section looks at the corresponding component
+in detail.
+
+<h4><a name="Callback Registry">Callback Registry</a></h4>
+
+<p>If RCU's grace-period guarantee is to mean anything at all, any
+access that happens before a given invocation of <tt>call_rcu()</tt>
+must also happen before the corresponding grace period.
+The implementation of this portion of RCU's grace period guarantee
+is shown in the following figure:
+
+</p><p><img src="TreeRCU-callback-registry.svg" alt="TreeRCU-callback-registry.svg">
+
+<p>Because <tt>call_rcu()</tt> normally acts only on CPU-local state,
+it provides no ordering guarantees, either for itself or for
+phase one of the update (which again will usually be removal of
+an element from an RCU-protected data structure).
+It simply enqueues the <tt>rcu_head</tt> structure on a per-CPU list,
+which cannot become associated with a grace period until a later
+call to <tt>rcu_accelerate_cbs()</tt>, as shown in the diagram above.
+
+<p>One set of code paths shown on the left invokes
+<tt>rcu_accelerate_cbs()</tt> via
+<tt>note_gp_changes()</tt>, either directly from <tt>call_rcu()</tt> (if
+the current CPU is inundated with queued <tt>rcu_head</tt> structures)
+or more likely from an <tt>RCU_SOFTIRQ</tt> handler.
+Another code path in the middle is taken only in kernels built with
+<tt>CONFIG_RCU_FAST_NO_HZ=y</tt>, which invokes
+<tt>rcu_accelerate_cbs()</tt> via <tt>rcu_prepare_for_idle()</tt>.
+The final code path on the right is taken only in kernels built with
+<tt>CONFIG_HOTPLUG_CPU=y</tt>, which invokes
+<tt>rcu_accelerate_cbs()</tt> via
+<tt>rcu_advance_cbs()</tt>, <tt>rcu_migrate_callbacks</tt>,
+<tt>rcutree_migrate_callbacks()</tt>, and <tt>takedown_cpu()</tt>,
+which in turn is invoked on a surviving CPU after the outgoing
+CPU has been completely offlined.
+
+<p>There are a few other code paths within grace-period processing
+that opportunistically invoke <tt>rcu_accelerate_cbs()</tt>.
+However, either way, all of the CPU's recently queued <tt>rcu_head</tt>
+structures are associated with a future grace-period number under
+the protection of the CPU's lead <tt>rcu_node</tt> structure's
+<tt>-&gt;lock</tt>.
+In all cases, there is full ordering against any prior critical section
+for that same <tt>rcu_node</tt> structure's <tt>-&gt;lock</tt>, and
+also full ordering against any of the current task's or CPU's prior critical
+sections for any <tt>rcu_node</tt> structure's <tt>-&gt;lock</tt>.
+
+<p>The next section will show how this ordering ensures that any
+accesses prior to the <tt>call_rcu()</tt> (particularly including phase
+one of the update)
+happen before the start of the corresponding grace period.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	But what about <tt>synchronize_rcu()</tt>?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	The <tt>synchronize_rcu()</tt> passes <tt>call_rcu()</tt>
+	to <tt>wait_rcu_gp()</tt>, which invokes it.
+	So either way, it eventually comes down to <tt>call_rcu()</tt>.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<h4><a name="Grace-Period Initialization">Grace-Period Initialization</a></h4>
+
+<p>Grace-period initialization is carried out by
+the grace-period kernel thread, which makes several passes over the
+<tt>rcu_node</tt> tree within the <tt>rcu_gp_init()</tt> function.
+This means that showing the full flow of ordering through the
+grace-period computation will require duplicating this tree.
+If you find this confusing, please note that the state of the
+<tt>rcu_node</tt> changes over time, just like Heraclitus's river.
+However, to keep the <tt>rcu_node</tt> river tractable, the
+grace-period kernel thread's traversals are presented in multiple
+parts, starting in this section with the various phases of
+grace-period initialization.
+
+<p>The first ordering-related grace-period initialization action is to
+increment the <tt>rcu_state</tt> structure's <tt>-&gt;gpnum</tt>
+grace-period-number counter, as shown below:
+
+</p><p><img src="TreeRCU-gp-init-1.svg" alt="TreeRCU-gp-init-1.svg" width="75%">
+
+<p>The actual increment is carried out using <tt>smp_store_release()</tt>,
+which helps reject false-positive RCU CPU stall detection.
+Note that only the root <tt>rcu_node</tt> structure is touched.
+
+<p>The first pass through the <tt>rcu_node</tt> tree updates bitmasks
+based on CPUs having come online or gone offline since the start of
+the previous grace period.
+In the common case where the number of online CPUs for this <tt>rcu_node</tt>
+structure has not transitioned to or from zero,
+this pass will scan only the leaf <tt>rcu_node</tt> structures.
+However, if the number of online CPUs for a given leaf <tt>rcu_node</tt>
+structure has transitioned from zero,
+<tt>rcu_init_new_rnp()</tt> will be invoked for the first incoming CPU.
+Similarly, if the number of online CPUs for a given leaf <tt>rcu_node</tt>
+structure has transitioned to zero,
+<tt>rcu_cleanup_dead_rnp()</tt> will be invoked for the last outgoing CPU.
+The diagram below shows the path of ordering if the leftmost
+<tt>rcu_node</tt> structure onlines its first CPU and if the next
+<tt>rcu_node</tt> structure has no online CPUs
+(or, alternatively if the leftmost <tt>rcu_node</tt> structure offlines
+its last CPU and if the next <tt>rcu_node</tt> structure has no online CPUs).
+
+</p><p><img src="TreeRCU-gp-init-2.svg" alt="TreeRCU-gp-init-1.svg" width="75%">
+
+<p>The final <tt>rcu_gp_init()</tt> pass through the <tt>rcu_node</tt>
+tree traverses breadth-first, setting each <tt>rcu_node</tt> structure's
+<tt>-&gt;gpnum</tt> field to the newly incremented value from the
+<tt>rcu_state</tt> structure, as shown in the following diagram.
+
+</p><p><img src="TreeRCU-gp-init-3.svg" alt="TreeRCU-gp-init-1.svg" width="75%">
+
+<p>This change will also cause each CPU's next call to
+<tt>__note_gp_changes()</tt>
+to notice that a new grace period has started, as described in the next
+section.
+But because the grace-period kthread started the grace period at the
+root (with the increment of the <tt>rcu_state</tt> structure's
+<tt>-&gt;gpnum</tt> field) before setting each leaf <tt>rcu_node</tt>
+structure's <tt>-&gt;gpnum</tt> field, each CPU's observation of
+the start of the grace period will happen after the actual start
+of the grace period.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	But what about the CPU that started the grace period?
+	Why wouldn't it see the start of the grace period right when
+	it started that grace period?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	In some deep philosophical and overly anthromorphized
+	sense, yes, the CPU starting the grace period is immediately
+	aware of having done so.
+	However, if we instead assume that RCU is not self-aware,
+	then even the CPU starting the grace period does not really
+	become aware of the start of this grace period until its
+	first call to <tt>__note_gp_changes()</tt>.
+	On the other hand, this CPU potentially gets early notification
+	because it invokes <tt>__note_gp_changes()</tt> during its
+	last <tt>rcu_gp_init()</tt> pass through its leaf
+	<tt>rcu_node</tt> structure.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<h4><a name="Self-Reported Quiescent States">
+Self-Reported Quiescent States</a></h4>
+
+<p>When all entities that might block the grace period have reported
+quiescent states (or as described in a later section, had quiescent
+states reported on their behalf), the grace period can end.
+Online non-idle CPUs report their own quiescent states, as shown
+in the following diagram:
+
+</p><p><img src="TreeRCU-qs.svg" alt="TreeRCU-qs.svg" width="75%">
+
+<p>This is for the last CPU to report a quiescent state, which signals
+the end of the grace period.
+Earlier quiescent states would push up the <tt>rcu_node</tt> tree
+only until they encountered an <tt>rcu_node</tt> structure that
+is waiting for additional quiescent states.
+However, ordering is nevertheless preserved because some later quiescent
+state will acquire that <tt>rcu_node</tt> structure's <tt>-&gt;lock</tt>.
+
+<p>Any number of events can lead up to a CPU invoking
+<tt>note_gp_changes</tt> (or alternatively, directly invoking
+<tt>__note_gp_changes()</tt>), at which point that CPU will notice
+the start of a new grace period while holding its leaf
+<tt>rcu_node</tt> lock.
+Therefore, all execution shown in this diagram happens after the
+start of the grace period.
+In addition, this CPU will consider any RCU read-side critical
+section that started before the invocation of <tt>__note_gp_changes()</tt>
+to have started before the grace period, and thus a critical
+section that the grace period must wait on.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	But a RCU read-side critical section might have started
+	after the beginning of the grace period
+	(the <tt>-&gt;gpnum++</tt> from earlier), so why should
+	the grace period wait on such a critical section?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	It is indeed not necessary for the grace period to wait on such
+	a critical section.
+	However, it is permissible to wait on it.
+	And it is furthermore important to wait on it, as this
+	lazy approach is far more scalable than a &ldquo;big bang&rdquo;
+	all-at-once grace-period start could possibly be.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<p>If the CPU does a context switch, a quiescent state will be
+noted by <tt>rcu_node_context_switch()</tt> on the left.
+On the other hand, if the CPU takes a scheduler-clock interrupt
+while executing in usermode, a quiescent state will be noted by
+<tt>rcu_check_callbacks()</tt> on the right.
+Either way, the passage through a quiescent state will be noted
+in a per-CPU variable.
+
+<p>The next time an <tt>RCU_SOFTIRQ</tt> handler executes on
+this CPU (for example, after the next scheduler-clock
+interrupt), <tt>__rcu_process_callbacks()</tt> will invoke
+<tt>rcu_check_quiescent_state()</tt>, which will notice the
+recorded quiescent state, and invoke
+<tt>rcu_report_qs_rdp()</tt>.
+If <tt>rcu_report_qs_rdp()</tt> verifies that the quiescent state
+really does apply to the current grace period, it invokes
+<tt>rcu_report_rnp()</tt> which traverses up the <tt>rcu_node</tt>
+tree as shown at the bottom of the diagram, clearing bits from
+each <tt>rcu_node</tt> structure's <tt>-&gt;qsmask</tt> field,
+and propagating up the tree when the result is zero.
+
+<p>Note that traversal passes upwards out of a given <tt>rcu_node</tt>
+structure only if the current CPU is reporting the last quiescent
+state for the subtree headed by that <tt>rcu_node</tt> structure.
+A key point is that if a CPU's traversal stops at a given <tt>rcu_node</tt>
+structure, then there will be a later traversal by another CPU
+(or perhaps the same one) that proceeds upwards
+from that point, and the <tt>rcu_node</tt> <tt>-&gt;lock</tt>
+guarantees that the first CPU's quiescent state happens before the
+remainder of the second CPU's traversal.
+Applying this line of thought repeatedly shows that all CPUs'
+quiescent states happen before the last CPU traverses through
+the root <tt>rcu_node</tt> structure, the &ldquo;last CPU&rdquo;
+being the one that clears the last bit in the root <tt>rcu_node</tt>
+structure's <tt>-&gt;qsmask</tt> field.
+
+<h4><a name="Dynamic Tick Interface">Dynamic Tick Interface</a></h4>
+
+<p>Due to energy-efficiency considerations, RCU is forbidden from
+disturbing idle CPUs.
+CPUs are therefore required to notify RCU when entering or leaving idle
+state, which they do via fully ordered value-returning atomic operations
+on a per-CPU variable.
+The ordering effects are as shown below:
+
+</p><p><img src="TreeRCU-dyntick.svg" alt="TreeRCU-dyntick.svg" width="50%">
+
+<p>The RCU grace-period kernel thread samples the per-CPU idleness
+variable while holding the corresponding CPU's leaf <tt>rcu_node</tt>
+structure's <tt>-&gt;lock</tt>.
+This means that any RCU read-side critical sections that precede the
+idle period (the oval near the top of the diagram above) will happen
+before the end of the current grace period.
+Similarly, the beginning of the current grace period will happen before
+any RCU read-side critical sections that follow the
+idle period (the oval near the bottom of the diagram above).
+
+<p>Plumbing this into the full grace-period execution is described
+<a href="#Forcing Quiescent States">below</a>.
+
+<h4><a name="CPU-Hotplug Interface">CPU-Hotplug Interface</a></h4>
+
+<p>RCU is also forbidden from disturbing offline CPUs, which might well
+be powered off and removed from the system completely.
+CPUs are therefore required to notify RCU of their comings and goings
+as part of the corresponding CPU hotplug operations.
+The ordering effects are shown below:
+
+</p><p><img src="TreeRCU-hotplug.svg" alt="TreeRCU-hotplug.svg" width="50%">
+
+<p>Because CPU hotplug operations are much less frequent than idle transitions,
+they are heavier weight, and thus acquire the CPU's leaf <tt>rcu_node</tt>
+structure's <tt>-&gt;lock</tt> and update this structure's
+<tt>-&gt;qsmaskinitnext</tt>.
+The RCU grace-period kernel thread samples this mask to detect CPUs
+having gone offline since the beginning of this grace period.
+
+<p>Plumbing this into the full grace-period execution is described
+<a href="#Forcing Quiescent States">below</a>.
+
+<h4><a name="Forcing Quiescent States">Forcing Quiescent States</a></h4>
+
+<p>As noted above, idle and offline CPUs cannot report their own
+quiescent states, and therefore the grace-period kernel thread
+must do the reporting on their behalf.
+This process is called &ldquo;forcing quiescent states&rdquo;, it is
+repeated every few jiffies, and its ordering effects are shown below:
+
+</p><p><img src="TreeRCU-gp-fqs.svg" alt="TreeRCU-gp-fqs.svg" width="100%">
+
+<p>Each pass of quiescent state forcing is guaranteed to traverse the
+leaf <tt>rcu_node</tt> structures, and if there are no new quiescent
+states due to recently idled and/or offlined CPUs, then only the
+leaves are traversed.
+However, if there is a newly offlined CPU as illustrated on the left
+or a newly idled CPU as illustrated on the right, the corresponding
+quiescent state will be driven up towards the root.
+As with self-reported quiescent states, the upwards driving stops
+once it reaches an <tt>rcu_node</tt> structure that has quiescent
+states outstanding from other CPUs.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	The leftmost drive to root stopped before it reached
+	the root <tt>rcu_node</tt> structure, which means that
+	there are still CPUs subordinate to that structure on
+	which the current grace period is waiting.
+	Given that, how is it possible that the rightmost drive
+	to root ended the grace period?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	Good analysis!
+	It is in fact impossible in the absence of bugs in RCU.
+	But this diagram is complex enough as it is, so simplicity
+	overrode accuracy.
+	You can think of it as poetic license, or you can think of
+	it as misdirection that is resolved in the
+	<a href="#Putting It All Together">stitched-together diagram</a>.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+<h4><a name="Grace-Period Cleanup">Grace-Period Cleanup</a></h4>
+
+<p>Grace-period cleanup first scans the <tt>rcu_node</tt> tree
+breadth-first setting all the <tt>-&gt;completed</tt> fields equal
+to the number of the newly completed grace period, then it sets
+the <tt>rcu_state</tt> structure's <tt>-&gt;completed</tt> field,
+again to the number of the newly completed grace period.
+The ordering effects are shown below:
+
+</p><p><img src="TreeRCU-gp-cleanup.svg" alt="TreeRCU-gp-cleanup.svg" width="75%">
+
+<p>As indicated by the oval at the bottom of the diagram, once
+grace-period cleanup is complete, the next grace period can begin.
+
+<table>
+<tr><th>&nbsp;</th></tr>
+<tr><th align="left">Quick Quiz:</th></tr>
+<tr><td>
+	But when precisely does the grace period end?
+</td></tr>
+<tr><th align="left">Answer:</th></tr>
+<tr><td bgcolor="#ffffff"><font color="ffffff">
+	There is no useful single point at which the grace period
+	can be said to end.
+	The earliest reasonable candidate is as soon as the last
+	CPU has reported its quiescent state, but it may be some
+	milliseconds before RCU becomes aware of this.
+	The latest reasonable candidate is once the <tt>rcu_state</tt>
+	structure's <tt>-&gt;completed</tt> field has been updated,
+	but it is quite possible that some CPUs have already completed
+	phase two of their updates by that time.
+	In short, if you are going to work with RCU, you need to
+	learn to embrace uncertainty.
+</font></td></tr>
+<tr><td>&nbsp;</td></tr>
+</table>
+
+
+<h4><a name="Callback Invocation">Callback Invocation</a></h4>
+
+<p>Once a given CPU's leaf <tt>rcu_node</tt> structure's
+<tt>-&gt;completed</tt> field has been updated, that CPU can begin
+invoking its RCU callbacks that were waiting for this grace period
+to end.
+These callbacks are identified by <tt>rcu_advance_cbs()</tt>,
+which is usually invoked by <tt>__note_gp_changes()</tt>.
+As shown in the diagram below, this invocation can be triggered by
+the scheduling-clock interrupt (<tt>rcu_check_callbacks()</tt> on
+the left) or by idle entry (<tt>rcu_cleanup_after_idle()</tt> on
+the right, but only for kernels build with
+<tt>CONFIG_RCU_FAST_NO_HZ=y</tt>).
+Either way, <tt>RCU_SOFTIRQ</tt> is raised, which results in
+<tt>rcu_do_batch()</tt> invoking the callbacks, which in turn
+allows those callbacks to carry out (either directly or indirectly
+via wakeup) the needed phase-two processing for each update.
+
+</p><p><img src="TreeRCU-callback-invocation.svg" alt="TreeRCU-callback-invocation.svg" width="60%">
+
+<p>Please note that callback invocation can also be prompted by any
+number of corner-case code paths, for example, when a CPU notes that
+it has excessive numbers of callbacks queued.
+In all cases, the CPU acquires its leaf <tt>rcu_node</tt> structure's
+<tt>-&gt;lock</tt> before invoking callbacks, which preserves the
+required ordering against the newly completed grace period.
+
+<p>However, if the callback function communicates to other CPUs,
+for example, doing a wakeup, then it is that function's responsibility
+to maintain ordering.
+For example, if the callback function wakes up a task that runs on
+some other CPU, proper ordering must in place in both the callback
+function and the task being awakened.
+To see why this is important, consider the top half of the
+<a href="#Grace-Period Cleanup">grace-period cleanup</a> diagram.
+The callback might be running on a CPU corresponding to the leftmost
+leaf <tt>rcu_node</tt> structure, and awaken a task that is to run on
+a CPU corresponding to the rightmost leaf <tt>rcu_node</tt> structure,
+and the grace-period kernel thread might not yet have reached the
+rightmost leaf.
+In this case, the grace period's memory ordering might not yet have
+reached that CPU, so again the callback function and the awakened
+task must supply proper ordering.
+
+<h3><a name="Putting It All Together">Putting It All Together</a></h3>
+
+<p>A stitched-together diagram is
+<a href="Tree-RCU-Diagram.html">here</a>.
+
+<h3><a name="Legal Statement">
+Legal Statement</a></h3>
+
+<p>This work represents the view of the author and does not necessarily
+represent the view of IBM.
+
+</p><p>Linux is a registered trademark of Linus Torvalds.
+
+</p><p>Other company, product, and service names may be trademarks or
+service marks of others.
+
+</body></html>
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diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt
index 96a3d81837e1..a08f928c8557 100644
--- a/Documentation/RCU/stallwarn.txt
+++ b/Documentation/RCU/stallwarn.txt
@@ -40,7 +40,9 @@ o	Booting Linux using a console connection that is too slow to
 o	Anything that prevents RCU's grace-period kthreads from running.
 	This can result in the "All QSes seen" console-log message.
 	This message will include information on when the kthread last
-	ran and how often it should be expected to run.
+	ran and how often it should be expected to run.  It can also
+	result in the "rcu_.*kthread starved for" console-log message,
+	which will include additional debugging information.
 
 o	A CPU-bound real-time task in a CONFIG_PREEMPT kernel, which might
 	happen to preempt a low-priority task in the middle of an RCU
@@ -60,6 +62,20 @@ o	A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that
 	CONFIG_PREEMPT_RCU case, you might see stall-warning
 	messages.
 
+o	A periodic interrupt whose handler takes longer than the time
+	interval between successive pairs of interrupts.  This can
+	prevent RCU's kthreads and softirq handlers from running.
+	Note that certain high-overhead debugging options, for example
+	the function_graph tracer, can result in interrupt handler taking
+	considerably longer than normal, which can in turn result in
+	RCU CPU stall warnings.
+
+o	Testing a workload on a fast system, tuning the stall-warning
+	timeout down to just barely avoid RCU CPU stall warnings, and then
+	running the same workload with the same stall-warning timeout on a
+	slow system.  Note that thermal throttling and on-demand governors
+	can cause a single system to be sometimes fast and sometimes slow!
+
 o	A hardware or software issue shuts off the scheduler-clock
 	interrupt on a CPU that is not in dyntick-idle mode.  This
 	problem really has happened, and seems to be most likely to
@@ -155,67 +171,32 @@ Interpreting RCU's CPU Stall-Detector "Splats"
 For non-RCU-tasks flavors of RCU, when a CPU detects that it is stalling,
 it will print a message similar to the following:
 
-INFO: rcu_sched_state detected stall on CPU 5 (t=2500 jiffies)
-
-This message indicates that CPU 5 detected that it was causing a stall,
-and that the stall was affecting RCU-sched.  This message will normally be
-followed by a stack dump of the offending CPU.  On TREE_RCU kernel builds,
-RCU and RCU-sched are implemented by the same underlying mechanism,
-while on PREEMPT_RCU kernel builds, RCU is instead implemented
-by rcu_preempt_state.
-
-On the other hand, if the offending CPU fails to print out a stall-warning
-message quickly enough, some other CPU will print a message similar to
-the following:
-
-INFO: rcu_bh_state detected stalls on CPUs/tasks: { 3 5 } (detected by 2, 2502 jiffies)
+	INFO: rcu_sched detected stalls on CPUs/tasks:
+	2-...: (3 GPs behind) idle=06c/0/0 softirq=1453/1455 fqs=0
+	16-...: (0 ticks this GP) idle=81c/0/0 softirq=764/764 fqs=0
+	(detected by 32, t=2603 jiffies, g=7073, c=7072, q=625)
 
-This message indicates that CPU 2 detected that CPUs 3 and 5 were both
-causing stalls, and that the stall was affecting RCU-bh.  This message
+This message indicates that CPU 32 detected that CPUs 2 and 16 were both
+causing stalls, and that the stall was affecting RCU-sched.  This message
 will normally be followed by stack dumps for each CPU.  Please note that
-PREEMPT_RCU builds can be stalled by tasks as well as by CPUs,
-and that the tasks will be indicated by PID, for example, "P3421".
-It is even possible for a rcu_preempt_state stall to be caused by both
-CPUs -and- tasks, in which case the offending CPUs and tasks will all
-be called out in the list.
-
-Finally, if the grace period ends just as the stall warning starts
-printing, there will be a spurious stall-warning message:
-
-INFO: rcu_bh_state detected stalls on CPUs/tasks: { } (detected by 4, 2502 jiffies)
-
-This is rare, but does happen from time to time in real life.  It is also
-possible for a zero-jiffy stall to be flagged in this case, depending
-on how the stall warning and the grace-period initialization happen to
-interact.  Please note that it is not possible to entirely eliminate this
-sort of false positive without resorting to things like stop_machine(),
-which is overkill for this sort of problem.
-
-Recent kernels will print a long form of the stall-warning message:
-
-	INFO: rcu_preempt detected stall on CPU
-	0: (63959 ticks this GP) idle=241/3fffffffffffffff/0 softirq=82/543
-	   (t=65000 jiffies)
-
-In kernels with CONFIG_RCU_FAST_NO_HZ, more information is printed:
-
-	INFO: rcu_preempt detected stall on CPU
-	0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 nonlazy_posted: 25 .D
-	   (t=65000 jiffies)
+PREEMPT_RCU builds can be stalled by tasks as well as by CPUs, and that
+the tasks will be indicated by PID, for example, "P3421".  It is even
+possible for a rcu_preempt_state stall to be caused by both CPUs -and-
+tasks, in which case the offending CPUs and tasks will all be called
+out in the list.
 
-The "(64628 ticks this GP)" indicates that this CPU has taken more
-than 64,000 scheduling-clock interrupts during the current stalled
-grace period.  If the CPU was not yet aware of the current grace
-period (for example, if it was offline), then this part of the message
-indicates how many grace periods behind the CPU is.
+CPU 2's "(3 GPs behind)" indicates that this CPU has not interacted with
+the RCU core for the past three grace periods.  In contrast, CPU 16's "(0
+ticks this GP)" indicates that this CPU has not taken any scheduling-clock
+interrupts during the current stalled grace period.
 
 The "idle=" portion of the message prints the dyntick-idle state.
 The hex number before the first "/" is the low-order 12 bits of the
-dynticks counter, which will have an even-numbered value if the CPU is
-in dyntick-idle mode and an odd-numbered value otherwise.  The hex
-number between the two "/"s is the value of the nesting, which will
-be a small positive number if in the idle loop and a very large positive
-number (as shown above) otherwise.
+dynticks counter, which will have an even-numbered value if the CPU
+is in dyntick-idle mode and an odd-numbered value otherwise.  The hex
+number between the two "/"s is the value of the nesting, which will be
+a small non-negative number if in the idle loop (as shown above) and a
+very large positive number otherwise.
 
 The "softirq=" portion of the message tracks the number of RCU softirq
 handlers that the stalled CPU has executed.  The number before the "/"
@@ -230,24 +211,72 @@ handlers are no longer able to execute on this CPU.  This can happen if
 the stalled CPU is spinning with interrupts are disabled, or, in -rt
 kernels, if a high-priority process is starving RCU's softirq handler.
 
-For CONFIG_RCU_FAST_NO_HZ kernels, the "last_accelerate:" prints the
-low-order 16 bits (in hex) of the jiffies counter when this CPU last
-invoked rcu_try_advance_all_cbs() from rcu_needs_cpu() or last invoked
-rcu_accelerate_cbs() from rcu_prepare_for_idle().  The "nonlazy_posted:"
-prints the number of non-lazy callbacks posted since the last call to
-rcu_needs_cpu().  Finally, an "L" indicates that there are currently
-no non-lazy callbacks ("." is printed otherwise, as shown above) and
-"D" indicates that dyntick-idle processing is enabled ("." is printed
-otherwise, for example, if disabled via the "nohz=" kernel boot parameter).
+The "fps=" shows the number of force-quiescent-state idle/offline
+detection passes that the grace-period kthread has made across this
+CPU since the last time that this CPU noted the beginning of a grace
+period.
+
+The "detected by" line indicates which CPU detected the stall (in this
+case, CPU 32), how many jiffies have elapsed since the start of the
+grace period (in this case 2603), the number of the last grace period
+to start and to complete (7073 and 7072, respectively), and an estimate
+of the total number of RCU callbacks queued across all CPUs (625 in
+this case).
+
+In kernels with CONFIG_RCU_FAST_NO_HZ, more information is printed
+for each CPU:
+
+	0: (64628 ticks this GP) idle=dd5/3fffffffffffffff/0 softirq=82/543 last_accelerate: a345/d342 nonlazy_posted: 25 .D
+
+The "last_accelerate:" prints the low-order 16 bits (in hex) of the
+jiffies counter when this CPU last invoked rcu_try_advance_all_cbs()
+from rcu_needs_cpu() or last invoked rcu_accelerate_cbs() from
+rcu_prepare_for_idle().  The "nonlazy_posted:" prints the number
+of non-lazy callbacks posted since the last call to rcu_needs_cpu().
+Finally, an "L" indicates that there are currently no non-lazy callbacks
+("." is printed otherwise, as shown above) and "D" indicates that
+dyntick-idle processing is enabled ("." is printed otherwise, for example,
+if disabled via the "nohz=" kernel boot parameter).
+
+If the grace period ends just as the stall warning starts printing,
+there will be a spurious stall-warning message, which will include
+the following:
+
+	INFO: Stall ended before state dump start
+
+This is rare, but does happen from time to time in real life.  It is also
+possible for a zero-jiffy stall to be flagged in this case, depending
+on how the stall warning and the grace-period initialization happen to
+interact.  Please note that it is not possible to entirely eliminate this
+sort of false positive without resorting to things like stop_machine(),
+which is overkill for this sort of problem.
+
+If all CPUs and tasks have passed through quiescent states, but the
+grace period has nevertheless failed to end, the stall-warning splat
+will include something like the following:
+
+	All QSes seen, last rcu_preempt kthread activity 23807 (4297905177-4297881370), jiffies_till_next_fqs=3, root ->qsmask 0x0
+
+The "23807" indicates that it has been more than 23 thousand jiffies
+since the grace-period kthread ran.  The "jiffies_till_next_fqs"
+indicates how frequently that kthread should run, giving the number
+of jiffies between force-quiescent-state scans, in this case three,
+which is way less than 23807.  Finally, the root rcu_node structure's
+->qsmask field is printed, which will normally be zero.
 
 If the relevant grace-period kthread has been unable to run prior to
-the stall warning, the following additional line is printed:
+the stall warning, as was the case in the "All QSes seen" line above,
+the following additional line is printed:
 
-	rcu_preempt kthread starved for 2023 jiffies!
+	kthread starved for 23807 jiffies! g7073 c7072 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
 
-Starving the grace-period kthreads of CPU time can of course result in
-RCU CPU stall warnings even when all CPUs and tasks have passed through
-the required quiescent states.
+Starving the grace-period kthreads of CPU time can of course result
+in RCU CPU stall warnings even when all CPUs and tasks have passed
+through the required quiescent states.  The "g" and "c" numbers flag the
+number of the last grace period started and completed, respectively,
+the "f" precedes the ->gp_flags command to the grace-period kthread,
+the "RCU_GP_WAIT_FQS" indicates that the kthread is waiting for a short
+timeout, and the "state" precedes value of the task_struct ->state field.
 
 
 Multiple Warnings From One Stall
@@ -264,13 +293,28 @@ Stall Warnings for Expedited Grace Periods
 If an expedited grace period detects a stall, it will place a message
 like the following in dmesg:
 
-	INFO: rcu_sched detected expedited stalls on CPUs: { 1 2 6 } 26009 jiffies s: 1043
-
-This indicates that CPUs 1, 2, and 6 have failed to respond to a
-reschedule IPI, that the expedited grace period has been going on for
-26,009 jiffies, and that the expedited grace-period sequence counter is
-1043.  The fact that this last value is odd indicates that an expedited
-grace period is in flight.
+	INFO: rcu_sched detected expedited stalls on CPUs/tasks: { 7-... } 21119 jiffies s: 73 root: 0x2/.
+
+This indicates that CPU 7 has failed to respond to a reschedule IPI.
+The three periods (".") following the CPU number indicate that the CPU
+is online (otherwise the first period would instead have been "O"),
+that the CPU was online at the beginning of the expedited grace period
+(otherwise the second period would have instead been "o"), and that
+the CPU has been online at least once since boot (otherwise, the third
+period would instead have been "N").  The number before the "jiffies"
+indicates that the expedited grace period has been going on for 21,119
+jiffies.  The number following the "s:" indicates that the expedited
+grace-period sequence counter is 73.  The fact that this last value is
+odd indicates that an expedited grace period is in flight.  The number
+following "root:" is a bitmask that indicates which children of the root
+rcu_node structure correspond to CPUs and/or tasks that are blocking the
+current expedited grace period.  If the tree had more than one level,
+additional hex numbers would be printed for the states of the other
+rcu_node structures in the tree.
+
+As with normal grace periods, PREEMPT_RCU builds can be stalled by
+tasks as well as by CPUs, and that the tasks will be indicated by PID,
+for example, "P3421".
 
 It is entirely possible to see stall warnings from normal and from
-expedited grace periods at about the same time from the same run.
+expedited grace periods at about the same time during the same run.
diff --git a/Documentation/acpi/lpit.txt b/Documentation/acpi/lpit.txt
new file mode 100644
index 000000000000..b426398d2e97
--- /dev/null
+++ b/Documentation/acpi/lpit.txt
@@ -0,0 +1,25 @@
+To enumerate platform Low Power Idle states, Intel platforms are using
+“Low Power Idle Table� (LPIT). More details about this table can be
+downloaded from:
+http://www.uefi.org/sites/default/files/resources/Intel_ACPI_Low_Power_S0_Idle.pdf
+
+Residencies for each low power state can be read via FFH
+(Function fixed hardware) or a memory mapped interface.
+
+On platforms supporting S0ix sleep states, there can be two types of
+residencies:
+- CPU PKG C10 (Read via FFH interface)
+- Platform Controller Hub (PCH) SLP_S0 (Read via memory mapped interface)
+
+The following attributes are added dynamically to the cpuidle
+sysfs attribute group:
+	/sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us
+	/sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us
+
+The "low_power_idle_cpu_residency_us" attribute shows time spent
+by the CPU package in PKG C10
+
+The "low_power_idle_system_residency_us" attribute shows SLP_S0
+residency, or system time spent with the SLP_S0# signal asserted.
+This is the lowest possible system power state, achieved only when CPU is in
+PKG C10 and all functional blocks in PCH are in a low power state.
diff --git a/Documentation/admin-guide/README.rst b/Documentation/admin-guide/README.rst
index b5343c5aa224..63066db39910 100644
--- a/Documentation/admin-guide/README.rst
+++ b/Documentation/admin-guide/README.rst
@@ -350,7 +350,7 @@ If something goes wrong
    help debugging the problem.  The text above the dump is also
    important: it tells something about why the kernel dumped code (in
    the above example, it's due to a bad kernel pointer). More information
-   on making sense of the dump is in Documentation/admin-guide/oops-tracing.rst
+   on making sense of the dump is in Documentation/admin-guide/bug-hunting.rst
 
  - If you compiled the kernel with CONFIG_KALLSYMS you can send the dump
    as is, otherwise you will have to use the ``ksymoops`` program to make
diff --git a/Documentation/admin-guide/bug-hunting.rst b/Documentation/admin-guide/bug-hunting.rst
index 08c4b1308189..f278b289e260 100644
--- a/Documentation/admin-guide/bug-hunting.rst
+++ b/Documentation/admin-guide/bug-hunting.rst
@@ -240,7 +240,7 @@ In order to report it upstream, you should identify the mailing list
 used for the development of the affected code. This can be done by using
 the ``get_maintainer.pl`` script.
 
-For example, if you find a bug at the gspca's conex.c file, you can get
+For example, if you find a bug at the gspca's sonixj.c file, you can get
 their maintainers with::
 
 	$ ./scripts/get_maintainer.pl -f drivers/media/usb/gspca/sonixj.c
@@ -257,7 +257,7 @@ Please notice that it will point to:
   Tejun and Bhaktipriya (in this specific case, none really envolved on the
   development of this file);
 - The driver maintainer (Hans Verkuil);
-- The subsystem maintainer (Mauro Carvalho Chehab)
+- The subsystem maintainer (Mauro Carvalho Chehab);
 - The driver and/or subsystem mailing list (linux-media@vger.kernel.org);
 - the Linux Kernel mailing list (linux-kernel@vger.kernel.org).
 
@@ -274,14 +274,14 @@ Fixing the bug
 --------------
 
 If you know programming, you could help us by not only reporting the bug,
-but also providing us with a solution. After all open source is about
+but also providing us with a solution. After all, open source is about
 sharing what you do and don't you want to be recognised for your genius?
 
 If you decide to take this way, once you have worked out a fix please submit
 it upstream.
 
 Please do read
-ref:`Documentation/process/submitting-patches.rst <submittingpatches>` though
+:ref:`Documentation/process/submitting-patches.rst <submittingpatches>` though
 to help your code get accepted.
 
 
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 05496622b4ef..b74e13312fdc 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -314,7 +314,7 @@
 	amijoy.map=	[HW,JOY] Amiga joystick support
 			Map of devices attached to JOY0DAT and JOY1DAT
 			Format: <a>,<b>
-			See also Documentation/input/joystick.txt
+			See also Documentation/input/joydev/joystick.rst
 
 	analog.map=	[HW,JOY] Analog joystick and gamepad support
 			Specifies type or capabilities of an analog joystick
@@ -439,7 +439,7 @@
 	bttv.card=	[HW,V4L] bttv (bt848 + bt878 based grabber cards)
 	bttv.radio=	Most important insmod options are available as
 			kernel args too.
-	bttv.pll=	See Documentation/video4linux/bttv/Insmod-options
+	bttv.pll=	See Documentation/media/v4l-drivers/bttv.rst
 	bttv.tuner=
 
 	bulk_remove=off	[PPC]  This parameter disables the use of the pSeries
@@ -641,8 +641,8 @@
 		For now, only VisioBraille is supported.
 
 	consoleblank=	[KNL] The console blank (screen saver) timeout in
-			seconds. Defaults to 10*60 = 10mins. A value of 0
-			disables the blank timer.
+			seconds. A value of 0 disables the blank timer.
+                       Defaults to 0.
 
 	coredump_filter=
 			[KNL] Change the default value for
@@ -709,6 +709,9 @@
 			It will be ignored when crashkernel=X,high is not used
 			or memory reserved is below 4G.
 
+	crossrelease_fullstack
+			[KNL] Allow to record full stack trace in cross-release
+
 	cryptomgr.notests
                         [KNL] Disable crypto self-tests
 
@@ -724,7 +727,7 @@
 	db9.dev[2|3]=	[HW,JOY] Multisystem joystick support via parallel port
 			(one device per port)
 			Format: <port#>,<type>
-			See also Documentation/input/joystick-parport.txt
+			See also Documentation/input/devices/joystick-parport.rst
 
 	ddebug_query=   [KNL,DYNAMIC_DEBUG] Enable debug messages at early boot
 			time. See
@@ -1220,7 +1223,7 @@
 			[HW,JOY] Multisystem joystick and NES/SNES/PSX pad
 			support via parallel port (up to 5 devices per port)
 			Format: <port#>,<pad1>,<pad2>,<pad3>,<pad4>,<pad5>
-			See also Documentation/input/joystick-parport.txt
+			See also Documentation/input/devices/joystick-parport.rst
 
 	gamma=		[HW,DRM]
 
@@ -1713,6 +1716,13 @@
 	irqaffinity=	[SMP] Set the default irq affinity mask
 			The argument is a cpu list, as described above.
 
+	irqchip.gicv2_force_probe=
+			[ARM, ARM64]
+			Format: <bool>
+			Force the kernel to look for the second 4kB page
+			of a GICv2 controller even if the memory range
+			exposed by the device tree is too small.
+
 	irqfixup	[HW]
 			When an interrupt is not handled search all handlers
 			for it. Intended to get systems with badly broken
@@ -1727,20 +1737,33 @@
 	isapnp=		[ISAPNP]
 			Format: <RDP>,<reset>,<pci_scan>,<verbosity>
 
-	isolcpus=	[KNL,SMP] Isolate CPUs from the general scheduler.
-			The argument is a cpu list, as described above.
+	isolcpus=	[KNL,SMP] Isolate a given set of CPUs from disturbance.
+			[Deprecated - use cpusets instead]
+			Format: [flag-list,]<cpu-list>
+
+			Specify one or more CPUs to isolate from disturbances
+			specified in the flag list (default: domain):
+
+			nohz
+			  Disable the tick when a single task runs.
+			domain
+			  Isolate from the general SMP balancing and scheduling
+			  algorithms. Note that performing domain isolation this way
+			  is irreversible: it's not possible to bring back a CPU to
+			  the domains once isolated through isolcpus. It's strongly
+			  advised to use cpusets instead to disable scheduler load
+			  balancing through the "cpuset.sched_load_balance" file.
+			  It offers a much more flexible interface where CPUs can
+			  move in and out of an isolated set anytime.
+
+			  You can move a process onto or off an "isolated" CPU via
+			  the CPU affinity syscalls or cpuset.
+			  <cpu number> begins at 0 and the maximum value is
+			  "number of CPUs in system - 1".
+
+			The format of <cpu-list> is described above.
 
-			This option can be used to specify one or more CPUs
-			to isolate from the general SMP balancing and scheduling
-			algorithms. You can move a process onto or off an
-			"isolated" CPU via the CPU affinity syscalls or cpuset.
-			<cpu number> begins at 0 and the maximum value is
-			"number of CPUs in system - 1".
 
-			This option is the preferred way to isolate CPUs. The
-			alternative -- manually setting the CPU mask of all
-			tasks in the system -- can cause problems and
-			suboptimal load balancer performance.
 
 	iucv=		[HW,NET]
 
@@ -1766,7 +1789,7 @@
 				ivrs_acpihid[00:14.5]=AMD0020:0
 
 	js=		[HW,JOY] Analog joystick
-			See Documentation/input/joystick.txt.
+			See Documentation/input/joydev/joystick.rst.
 
 	nokaslr		[KNL]
 			When CONFIG_RANDOMIZE_BASE is set, this disables
@@ -2248,10 +2271,10 @@
 			s2idle  - Suspend-To-Idle
 			shallow - Power-On Suspend or equivalent (if supported)
 			deep    - Suspend-To-RAM or equivalent (if supported)
-			See Documentation/power/states.txt.
+			See Documentation/admin-guide/pm/sleep-states.rst.
 
 	meye.*=		[HW] Set MotionEye Camera parameters
-			See Documentation/video4linux/meye.txt.
+			See Documentation/media/v4l-drivers/meye.rst.
 
 	mfgpt_irq=	[IA-32] Specify the IRQ to use for the
 			Multi-Function General Purpose Timers on AMD Geode
@@ -2548,6 +2571,9 @@
 
 	noalign		[KNL,ARM]
 
+	noaltinstr	[S390] Disables alternative instructions patching
+			(CPU alternatives feature).
+
 	noapic		[SMP,APIC] Tells the kernel to not make use of any
 			IOAPICs that may be present in the system.
 
@@ -3134,7 +3160,7 @@
 
 	plip=		[PPT,NET] Parallel port network link
 			Format: { parport<nr> | timid | 0 }
-			See also Documentation/parport.txt.
+			See also Documentation/admin-guide/parport.rst.
 
 	pmtmr=		[X86] Manual setup of pmtmr I/O Port.
 			Override pmtimer IOPort with a hex value.
@@ -3539,6 +3565,9 @@
 	rcutorture.stall_cpu_holdoff= [KNL]
 			Time to wait (s) after boot before inducing stall.
 
+	rcutorture.stall_cpu_irqsoff= [KNL]
+			Disable interrupts while stalling if set.
+
 	rcutorture.stat_interval= [KNL]
 			Time (s) between statistics printk()s.
 
@@ -3885,6 +3914,12 @@
 			[KNL] Should the soft-lockup detector generate panics.
 			Format: <integer>
 
+			A nonzero value instructs the soft-lockup detector
+			to panic the machine when a soft-lockup occurs. This
+			is also controlled by CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC
+			which is the respective build-time switch to that
+			functionality.
+
 	softlockup_all_cpu_backtrace=
 			[KNL] Should the soft-lockup detector generate
 			backtraces on all cpus.
@@ -4194,12 +4229,15 @@
 			Used to run time disable IRQ_TIME_ACCOUNTING on any
 			platforms where RDTSC is slow and this accounting
 			can add overhead.
+			[x86] unstable: mark the TSC clocksource as unstable, this
+			marks the TSC unconditionally unstable at bootup and
+			avoids any further wobbles once the TSC watchdog notices.
 
 	turbografx.map[2|3]=	[HW,JOY]
 			TurboGraFX parallel port interface
 			Format:
 			<port#>,<js1>,<js2>,<js3>,<js4>,<js5>,<js6>,<js7>
-			See also Documentation/input/joystick-parport.txt
+			See also Documentation/input/devices/joystick-parport.rst
 
 	udbg-immortal	[PPC] When debugging early kernel crashes that
 			happen after console_init() and before a proper
diff --git a/Documentation/admin-guide/reporting-bugs.rst b/Documentation/admin-guide/reporting-bugs.rst
index 26b60b419652..4650edb8840a 100644
--- a/Documentation/admin-guide/reporting-bugs.rst
+++ b/Documentation/admin-guide/reporting-bugs.rst
@@ -94,7 +94,7 @@ step-by-step instructions for how a user can trigger the bug.
 
 If the failure includes an "OOPS:", take a picture of the screen, capture
 a netconsole trace, or type the message from your screen into the bug
-report.  Please read "Documentation/admin-guide/oops-tracing.rst" before posting your
+report.  Please read "Documentation/admin-guide/bug-hunting.rst" before posting your
 bug report. This explains what you should do with the "Oops" information
 to make it useful to the recipient.
 
@@ -120,7 +120,7 @@ summary from [1.]>" for easy identification by the developers::
   [4.2.] Kernel .config file:
   [5.] Most recent kernel version which did not have the bug:
   [6.] Output of Oops.. message (if applicable) with symbolic information
-       resolved (see Documentation/admin-guide/oops-tracing.rst)
+       resolved (see Documentation/admin-guide/bug-hunting.rst)
   [7.] A small shell script or example program which triggers the
        problem (if possible)
   [8.] Environment
diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt
index 66e8ce14d23d..304bf22bb83c 100644
--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
@@ -70,6 +70,7 @@ stable kernels.
 |                |                 |                 |                             |
 | Hisilicon      | Hip0{5,6,7}     | #161010101      | HISILICON_ERRATUM_161010101 |
 | Hisilicon      | Hip0{6,7}       | #161010701      | N/A                         |
+| Hisilicon      | Hip07           | #161600802      | HISILICON_ERRATUM_161600802 |
 |                |                 |                 |                             |
 | Qualcomm Tech. | Falkor v1       | E1003           | QCOM_FALKOR_ERRATUM_1003    |
 | Qualcomm Tech. | Falkor v1       | E1009           | QCOM_FALKOR_ERRATUM_1009    |
diff --git a/Documentation/block/biodoc.txt b/Documentation/block/biodoc.txt
index 9490f2845f06..86927029a52d 100644
--- a/Documentation/block/biodoc.txt
+++ b/Documentation/block/biodoc.txt
@@ -216,10 +216,9 @@ may need to abort DMA operations and revert to PIO for the transfer, in
 which case a virtual mapping of the page is required. For SCSI it is also
 done in some scenarios where the low level driver cannot be trusted to
 handle a single sg entry correctly. The driver is expected to perform the
-kmaps as needed on such occasions using the __bio_kmap_atomic and bio_kmap_irq
-routines as appropriate. A driver could also use the blk_queue_bounce()
-routine on its own to bounce highmem i/o to low memory for specific requests
-if so desired.
+kmaps as needed on such occasions as appropriate. A driver could also use
+the blk_queue_bounce() routine on its own to bounce highmem i/o to low
+memory for specific requests if so desired.
 
 iii. The i/o scheduler algorithm itself can be replaced/set as appropriate
 
@@ -1137,8 +1136,8 @@ use dma_map_sg for scatter gather) to be able to ship it to the driver. For
 PIO drivers (or drivers that need to revert to PIO transfer once in a
 while (IDE for example)), where the CPU is doing the actual data
 transfer a virtual mapping is needed. If the driver supports highmem I/O,
-(Sec 1.1, (ii) ) it needs to use __bio_kmap_atomic and bio_kmap_irq to
-temporarily map a bio into the virtual address space.
+(Sec 1.1, (ii) ) it needs to use kmap_atomic or similar to temporarily map
+a bio into the virtual address space.
 
 
 8. Prior/Related/Impacted patches
diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt
index 3140dbd860d8..733927a7b501 100644
--- a/Documentation/block/null_blk.txt
+++ b/Documentation/block/null_blk.txt
@@ -38,7 +38,7 @@ gb=[Size in GB]: Default: 250GB
 bs=[Block size (in bytes)]: Default: 512 bytes
   The block size reported to the system.
 
-nr_devices=[Number of devices]: Default: 2
+nr_devices=[Number of devices]: Default: 1
   Number of block devices instantiated. They are instantiated as /dev/nullb0,
   etc.
 
@@ -52,13 +52,13 @@ irqmode=[0-2]: Default: 1-Soft-irq
   2: Timer: Waits a specific period (completion_nsec) for each IO before
      completion.
 
-completion_nsec=[ns]: Default: 10.000ns
+completion_nsec=[ns]: Default: 10,000ns
   Combined with irqmode=2 (timer). The time each completion event must wait.
 
-submit_queues=[0..nr_cpus]:
+submit_queues=[1..nr_cpus]:
   The number of submission queues attached to the device driver. If unset, it
-  defaults to 1 on single-queue and bio-based instances. For multi-queue,
-  it is ignored when use_per_node_hctx module parameter is 1.
+  defaults to 1. For multi-queue, it is ignored when use_per_node_hctx module
+  parameter is 1.
 
 hw_queue_depth=[0..qdepth]: Default: 64
   The hardware queue depth of the device.
@@ -73,3 +73,12 @@ use_per_node_hctx=[0/1]: Default: 0
 
 use_lightnvm=[0/1]: Default: 0
   Register device with LightNVM. Requires blk-mq and CONFIG_NVM to be enabled.
+
+no_sched=[0/1]: Default: 0
+  0: nullb* use default blk-mq io scheduler.
+  1: nullb* doesn't use io scheduler.
+
+shared_tags=[0/1]: Default: 0
+  0: Tag set is not shared.
+  1: Tag set shared between devices for blk-mq. Only makes sense with
+     nr_devices > 1, otherwise there's no tag set to share.
diff --git a/Documentation/cdrom/ide-cd b/Documentation/cdrom/ide-cd
index f4dc9de2694e..a5f2a7f1ff46 100644
--- a/Documentation/cdrom/ide-cd
+++ b/Documentation/cdrom/ide-cd
@@ -55,13 +55,9 @@ This driver provides the following features:
    (to compile support as a module which can be loaded and unloaded)
    to the options: 
 
-      Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support
+      ATA/ATAPI/MFM/RLL support
       Include IDE/ATAPI CDROM support
 
-   and `no' to
-
-      Use old disk-only driver on primary interface
-
    Depending on what type of IDE interface you have, you may need to
    specify additional configuration options.  See
    Documentation/ide/ide.txt.
diff --git a/Documentation/core-api/kernel-api.rst b/Documentation/core-api/kernel-api.rst
index 8282099e0cbf..2d9da6c40a4d 100644
--- a/Documentation/core-api/kernel-api.rst
+++ b/Documentation/core-api/kernel-api.rst
@@ -2,11 +2,9 @@
 The Linux Kernel API
 ====================
 
-Data Types
-==========
 
-Doubly Linked Lists
--------------------
+List Management Functions
+=========================
 
 .. kernel-doc:: include/linux/list.h
    :internal:
@@ -56,11 +54,26 @@ Bitmap Operations
 -----------------
 
 .. kernel-doc:: lib/bitmap.c
+   :doc: bitmap introduction
+
+.. kernel-doc:: include/linux/bitmap.h
+   :doc: declare bitmap
+
+.. kernel-doc:: include/linux/bitmap.h
+   :doc: bitmap overview
+
+.. kernel-doc:: include/linux/bitmap.h
+   :doc: bitmap bitops
+
+.. kernel-doc:: lib/bitmap.c
    :export:
 
 .. kernel-doc:: lib/bitmap.c
    :internal:
 
+.. kernel-doc:: include/linux/bitmap.h
+   :internal:
+
 Command-line Parsing
 --------------------
 
@@ -70,13 +83,16 @@ Command-line Parsing
 CRC Functions
 -------------
 
+.. kernel-doc:: lib/crc4.c
+   :export:
+
 .. kernel-doc:: lib/crc7.c
    :export:
 
-.. kernel-doc:: lib/crc16.c
+.. kernel-doc:: lib/crc8.c
    :export:
 
-.. kernel-doc:: lib/crc-itu-t.c
+.. kernel-doc:: lib/crc16.c
    :export:
 
 .. kernel-doc:: lib/crc32.c
@@ -84,6 +100,9 @@ CRC Functions
 .. kernel-doc:: lib/crc-ccitt.c
    :export:
 
+.. kernel-doc:: lib/crc-itu-t.c
+   :export:
+
 idr/ida Functions
 -----------------
 
@@ -96,6 +115,30 @@ idr/ida Functions
 .. kernel-doc:: lib/idr.c
    :export:
 
+Math Functions in Linux
+=======================
+
+Base 2 log and power Functions
+------------------------------
+
+.. kernel-doc:: include/linux/log2.h
+   :internal:
+
+Division Functions
+------------------
+
+.. kernel-doc:: include/asm-generic/div64.h
+   :functions: do_div
+
+.. kernel-doc:: include/linux/math64.h
+   :internal:
+
+.. kernel-doc:: lib/div64.c
+   :functions: div_s64_rem div64_u64_rem div64_u64 div64_s64
+
+.. kernel-doc:: lib/gcd.c
+   :export:
+
 Memory Management in Linux
 ==========================
 
@@ -352,44 +395,30 @@ Read-Copy Update (RCU)
 ----------------------
 
 .. kernel-doc:: include/linux/rcupdate.h
-   :external:
 
 .. kernel-doc:: include/linux/rcupdate_wait.h
-   :external:
 
 .. kernel-doc:: include/linux/rcutree.h
-   :external:
 
 .. kernel-doc:: kernel/rcu/tree.c
-   :external:
 
 .. kernel-doc:: kernel/rcu/tree_plugin.h
-   :external:
 
 .. kernel-doc:: kernel/rcu/tree_exp.h
-   :external:
 
 .. kernel-doc:: kernel/rcu/update.c
-   :external:
 
 .. kernel-doc:: include/linux/srcu.h
-   :external:
 
 .. kernel-doc:: kernel/rcu/srcutree.c
-   :external:
 
 .. kernel-doc:: include/linux/rculist_bl.h
-   :external:
 
 .. kernel-doc:: include/linux/rculist.h
-   :external:
 
 .. kernel-doc:: include/linux/rculist_nulls.h
-   :external:
 
 .. kernel-doc:: include/linux/rcu_sync.h
-   :external:
 
 .. kernel-doc:: kernel/rcu/sync.c
-   :external:
 
diff --git a/Documentation/core-api/workqueue.rst b/Documentation/core-api/workqueue.rst
index 3943b5bfa8cf..00a5ba51e63f 100644
--- a/Documentation/core-api/workqueue.rst
+++ b/Documentation/core-api/workqueue.rst
@@ -39,8 +39,8 @@ up.
 Although MT wq wasted a lot of resource, the level of concurrency
 provided was unsatisfactory.  The limitation was common to both ST and
 MT wq albeit less severe on MT.  Each wq maintained its own separate
-worker pool.  A MT wq could provide only one execution context per CPU
-while a ST wq one for the whole system.  Work items had to compete for
+worker pool.  An MT wq could provide only one execution context per CPU
+while an ST wq one for the whole system.  Work items had to compete for
 those very limited execution contexts leading to various problems
 including proneness to deadlocks around the single execution context.
 
@@ -151,7 +151,7 @@ Application Programming Interface (API)
 
 ``alloc_workqueue()`` allocates a wq.  The original
 ``create_*workqueue()`` functions are deprecated and scheduled for
-removal.  ``alloc_workqueue()`` takes three arguments - @``name``,
+removal.  ``alloc_workqueue()`` takes three arguments - ``@name``,
 ``@flags`` and ``@max_active``.  ``@name`` is the name of the wq and
 also used as the name of the rescuer thread if there is one.
 
@@ -197,7 +197,7 @@ resources, scheduled and executed.
   served by worker threads with elevated nice level.
 
   Note that normal and highpri worker-pools don't interact with
-  each other.  Each maintain its separate pool of workers and
+  each other.  Each maintains its separate pool of workers and
   implements concurrency management among its workers.
 
 ``WQ_CPU_INTENSIVE``
@@ -249,8 +249,8 @@ unbound worker-pools and only one work item could be active at any given
 time thus achieving the same ordering property as ST wq.
 
 In the current implementation the above configuration only guarantees
-ST behavior within a given NUMA node. Instead alloc_ordered_queue should
-be used to achieve system wide ST behavior.
+ST behavior within a given NUMA node. Instead ``alloc_ordered_queue()`` should
+be used to achieve system-wide ST behavior.
 
 
 Example Execution Scenarios
diff --git a/Documentation/cpu-freq/cpufreq-stats.txt b/Documentation/cpu-freq/cpufreq-stats.txt
index 2bbe207354ed..a873855c811d 100644
--- a/Documentation/cpu-freq/cpufreq-stats.txt
+++ b/Documentation/cpu-freq/cpufreq-stats.txt
@@ -90,6 +90,9 @@ Freq_i to Freq_j. Freq_i is in descending order with increasing rows and
 Freq_j is in descending order with increasing columns. The output here also 
 contains the actual freq values for each row and column for better readability.
 
+If the transition table is bigger than PAGE_SIZE, reading this will
+return an -EFBIG error.
+
 --------------------------------------------------------------------------------
 <mysystem>:/sys/devices/system/cpu/cpu0/cpufreq/stats # cat trans_table
    From  :    To
diff --git a/Documentation/cpu-freq/index.txt b/Documentation/cpu-freq/index.txt
index 03a7cee6ac73..c15e75386a05 100644
--- a/Documentation/cpu-freq/index.txt
+++ b/Documentation/cpu-freq/index.txt
@@ -32,8 +32,6 @@ cpufreq-stats.txt -	General description of sysfs cpufreq stats.
 
 index.txt	-	File index, Mailing list and Links (this document)
 
-intel-pstate.txt -	Intel pstate cpufreq driver specific file.
-
 pcc-cpufreq.txt -	PCC cpufreq driver specific file.
 
 
diff --git a/Documentation/crypto/api-samples.rst b/Documentation/crypto/api-samples.rst
index 2531948db89f..006827e30d06 100644
--- a/Documentation/crypto/api-samples.rst
+++ b/Documentation/crypto/api-samples.rst
@@ -7,59 +7,27 @@ Code Example For Symmetric Key Cipher Operation
 ::
 
 
-    struct tcrypt_result {
-        struct completion completion;
-        int err;
-    };
-
     /* tie all data structures together */
     struct skcipher_def {
         struct scatterlist sg;
         struct crypto_skcipher *tfm;
         struct skcipher_request *req;
-        struct tcrypt_result result;
+        struct crypto_wait wait;
     };
 
-    /* Callback function */
-    static void test_skcipher_cb(struct crypto_async_request *req, int error)
-    {
-        struct tcrypt_result *result = req->data;
-
-        if (error == -EINPROGRESS)
-            return;
-        result->err = error;
-        complete(&result->completion);
-        pr_info("Encryption finished successfully\n");
-    }
-
     /* Perform cipher operation */
     static unsigned int test_skcipher_encdec(struct skcipher_def *sk,
                          int enc)
     {
-        int rc = 0;
+        int rc;
 
         if (enc)
-            rc = crypto_skcipher_encrypt(sk->req);
+            rc = crypto_wait_req(crypto_skcipher_encrypt(sk->req), &sk->wait);
         else
-            rc = crypto_skcipher_decrypt(sk->req);
-
-        switch (rc) {
-        case 0:
-            break;
-        case -EINPROGRESS:
-        case -EBUSY:
-            rc = wait_for_completion_interruptible(
-                &sk->result.completion);
-            if (!rc && !sk->result.err) {
-                reinit_completion(&sk->result.completion);
-                break;
-            }
-        default:
-            pr_info("skcipher encrypt returned with %d result %d\n",
-                rc, sk->result.err);
-            break;
-        }
-        init_completion(&sk->result.completion);
+            rc = crypto_wait_req(crypto_skcipher_decrypt(sk->req), &sk->wait);
+
+	if (rc)
+		pr_info("skcipher encrypt returned with result %d\n", rc);
 
         return rc;
     }
@@ -89,8 +57,8 @@ Code Example For Symmetric Key Cipher Operation
         }
 
         skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-                          test_skcipher_cb,
-                          &sk.result);
+                          crypto_req_done,
+                          &sk.wait);
 
         /* AES 256 with random key */
         get_random_bytes(&key, 32);
@@ -122,7 +90,7 @@ Code Example For Symmetric Key Cipher Operation
         /* We encrypt one block */
         sg_init_one(&sk.sg, scratchpad, 16);
         skcipher_request_set_crypt(req, &sk.sg, &sk.sg, 16, ivdata);
-        init_completion(&sk.result.completion);
+        crypto_init_wait(&sk.wait);
 
         /* encrypt data */
         ret = test_skcipher_encdec(&sk, 1);
diff --git a/Documentation/dev-tools/coccinelle.rst b/Documentation/dev-tools/coccinelle.rst
index 4a64b4c69d3f..37e474ff6911 100644
--- a/Documentation/dev-tools/coccinelle.rst
+++ b/Documentation/dev-tools/coccinelle.rst
@@ -209,7 +209,7 @@ err.log will now have the profiling information, while stdout will
 provide some progress information as Coccinelle moves forward with
 work.
 
-DEBUG_FILE support is only supported when using coccinelle >= 1.2.
+DEBUG_FILE support is only supported when using coccinelle >= 1.0.2.
 
 .cocciconfig support
 --------------------
diff --git a/Documentation/dev-tools/kselftest.rst b/Documentation/dev-tools/kselftest.rst
index ebd03d11d2c2..e80850eefe13 100644
--- a/Documentation/dev-tools/kselftest.rst
+++ b/Documentation/dev-tools/kselftest.rst
@@ -31,6 +31,17 @@ To build and run the tests with a single command, use::
 
 Note that some tests will require root privileges.
 
+Build and run from user specific object directory (make O=dir)::
+
+  $ make O=/tmp/kselftest kselftest
+
+Build and run KBUILD_OUTPUT directory (make KBUILD_OUTPUT=)::
+
+  $ make KBUILD_OUTPUT=/tmp/kselftest kselftest
+
+The above commands run the tests and print pass/fail summary to make it
+easier to understand the test results. Please find the detailed individual
+test results for each test in /tmp/testname file(s).
 
 Running a subset of selftests
 =============================
@@ -46,10 +57,21 @@ You can specify multiple tests to build and run::
 
   $  make TARGETS="size timers" kselftest
 
+Build and run from user specific object directory (make O=dir)::
+
+  $ make O=/tmp/kselftest TARGETS="size timers" kselftest
+
+Build and run KBUILD_OUTPUT directory (make KBUILD_OUTPUT=)::
+
+  $ make KBUILD_OUTPUT=/tmp/kselftest TARGETS="size timers" kselftest
+
+The above commands run the tests and print pass/fail summary to make it
+easier to understand the test results. Please find the detailed individual
+test results for each test in /tmp/testname file(s).
+
 See the top-level tools/testing/selftests/Makefile for the list of all
 possible targets.
 
-
 Running the full range hotplug selftests
 ========================================
 
@@ -113,9 +135,17 @@ Contributing new tests (details)
  * Use TEST_GEN_XXX if such binaries or files are generated during
    compiling.
 
-   TEST_PROGS, TEST_GEN_PROGS mean it is the excutable tested by
+   TEST_PROGS, TEST_GEN_PROGS mean it is the executable tested by
    default.
 
+   TEST_CUSTOM_PROGS should be used by tests that require custom build
+   rule and prevent common build rule use.
+
+   TEST_PROGS are for test shell scripts. Please ensure shell script has
+   its exec bit set. Otherwise, lib.mk run_tests will generate a warning.
+
+   TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests.
+
    TEST_PROGS_EXTENDED, TEST_GEN_PROGS_EXTENDED mean it is the
    executable which is not tested by default.
    TEST_FILES, TEST_GEN_FILES mean it is the file which is used by
diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt
index 4a0a7469fdd7..32df07e29f68 100644
--- a/Documentation/device-mapper/dm-raid.txt
+++ b/Documentation/device-mapper/dm-raid.txt
@@ -344,3 +344,4 @@ Version History
 	(wrong raid10_copies/raid10_format sequence)
 1.11.1  Add raid4/5/6 journal write-back support via journal_mode option
 1.12.1  fix for MD deadlock between mddev_suspend() and md_write_start() available
+1.13.0  Fix dev_health status at end of "recover" (was 'a', now 'A')
diff --git a/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
index a135504c7d57..cac24ee10b72 100644
--- a/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
+++ b/Documentation/devicetree/bindings/clock/st,stm32h7-rcc.txt
@@ -32,7 +32,7 @@ Example:
 		compatible = "st,stm32h743-rcc", "st,stm32-rcc";
 		reg = <0x58024400 0x400>;
 		#reset-cells = <1>;
-		#clock-cells = <2>;
+		#clock-cells = <1>;
 		clocks = <&clk_hse>, <&clk_lse>, <&clk_i2s_ckin>;
 
 		st,syscfg = <&pwrcfg>;
diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt b/Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt
index 4ca8dd4d7e66..4ca8dd4d7e66 100644
--- a/Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt
+++ b/Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt
diff --git a/Documentation/devicetree/bindings/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt
index 4408af693d0c..6f44df94101c 100644
--- a/Documentation/devicetree/bindings/dma/stm32-dma.txt
+++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt
@@ -71,7 +71,7 @@ channel: a phandle to the DMA controller plus the following four integer cells:
 Example:
 
 	usart1: serial@40011000 {
-		compatible = "st,stm32-usart", "st,stm32-uart";
+		compatible = "st,stm32-uart";
 		reg = <0x40011000 0x400>;
 		interrupts = <37>;
 		clocks = <&clk_pclk2>;
diff --git a/Documentation/devicetree/bindings/gpio/gpio-fan.txt b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
index 439a7430fc68..439a7430fc68 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-fan.txt
+++ b/Documentation/devicetree/bindings/hwmon/gpio-fan.txt
diff --git a/Documentation/devicetree/bindings/hwmon/max1619.txt b/Documentation/devicetree/bindings/hwmon/max1619.txt
new file mode 100644
index 000000000000..c70dbbe1e56f
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max1619.txt
@@ -0,0 +1,12 @@
+Bindings for MAX1619 Temperature Sensor
+
+Required properties:
+- compatible : "maxim,max1619"
+- reg        : I2C address, one of 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, or
+               0x4d, 0x4e
+
+Example:
+	temp@4c {
+		compatible = "maxim,max1619";
+		reg = <0x4c>;
+	};
diff --git a/Documentation/devicetree/bindings/hwmon/max31785.txt b/Documentation/devicetree/bindings/hwmon/max31785.txt
new file mode 100644
index 000000000000..106e08c56aaa
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/max31785.txt
@@ -0,0 +1,22 @@
+Bindings for the Maxim MAX31785 Intelligent Fan Controller
+==========================================================
+
+Reference:
+
+https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf
+
+The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan
+management with temperature and remote voltage sensing. Various fan control
+features are provided, including PWM frequency control, temperature hysteresis,
+dual tachometer measurements, and fan health monitoring.
+
+Required properties:
+- compatible     : One of "maxim,max31785" or "maxim,max31785a"
+- reg            : I2C address, one of 0x52, 0x53, 0x54, 0x55.
+
+Example:
+
+        fans@52 {
+                compatible = "maxim,max31785";
+                reg = <0x52>;
+        };
diff --git a/Documentation/devicetree/bindings/i2c/i2c-altera.txt b/Documentation/devicetree/bindings/i2c/i2c-altera.txt
new file mode 100644
index 000000000000..767664f448ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-altera.txt
@@ -0,0 +1,39 @@
+* Altera I2C Controller
+* This is Altera's synthesizable logic block I2C Controller for use
+* in Altera's FPGAs.
+
+Required properties :
+ - compatible : should be "altr,softip-i2c-v1.0"
+ - reg        : Offset and length of the register set for the device
+ - interrupts : <IRQ> where IRQ is the interrupt number.
+ - clocks     : phandle to input clock.
+ - #address-cells = <1>;
+ - #size-cells = <0>;
+
+Recommended properties :
+ - clock-frequency : desired I2C bus clock frequency in Hz.
+
+Optional properties :
+ - fifo-size : Size of the RX and TX FIFOs in bytes.
+ - Child nodes conforming to i2c bus binding
+
+Example :
+
+	i2c@100080000 {
+		compatible = "altr,softip-i2c-v1.0";
+		reg = <0x00000001 0x00080000 0x00000040>;
+		interrupt-parent = <&intc>;
+		interrupts = <0 43 4>;
+		clocks = <&clk_0>;
+		clock-frequency = <100000>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		fifo-size = <4>;
+
+		eeprom@51 {
+			compatible = "atmel,24c32";
+			reg = <0x51>;
+			pagesize = <32>;
+		};
+	};
+
diff --git a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
index 78eaf7b718ed..3b5489966634 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-stm32.txt
@@ -1,7 +1,9 @@
 * I2C controller embedded in STMicroelectronics STM32 I2C platform
 
 Required properties :
-- compatible : Must be "st,stm32f4-i2c"
+- compatible : Must be one of the following
+  - "st,stm32f4-i2c"
+  - "st,stm32f7-i2c"
 - reg : Offset and length of the register set for the device
 - interrupts : Must contain the interrupt id for I2C event and then the
   interrupt id for I2C error.
@@ -14,8 +16,16 @@ Required properties :
 
 Optional properties :
 - clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
-  the default 100 kHz frequency will be used. As only Normal and Fast modes
-  are supported, possible values are 100000 and 400000.
+  the default 100 kHz frequency will be used.
+  For STM32F4 SoC Standard-mode and Fast-mode are supported, possible values are
+  100000 and 400000.
+  For STM32F7 SoC, Standard-mode, Fast-mode and Fast-mode Plus are supported,
+  possible values are 100000, 400000 and 1000000.
+- i2c-scl-rising-time-ns : Only for STM32F7, I2C SCL Rising time for the board
+  (default: 25)
+- i2c-scl-falling-time-ns : Only for STM32F7, I2C SCL Falling time for the board
+  (default: 10)
+  I2C Timings are derived from these 2 values
 
 Example :
 
@@ -31,3 +41,16 @@ Example :
 		pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;
 		pinctrl-names = "default";
 	};
+
+	i2c@40005400 {
+		compatible = "st,stm32f7-i2c";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x40005400 0x400>;
+		interrupts = <31>,
+			     <32>;
+		resets = <&rcc STM32F7_APB1_RESET(I2C1)>;
+		clocks = <&rcc 1 CLK_I2C1>;
+		pinctrl-0 = <&i2c1_sda_pin>, <&i2c1_scl_pin>;
+		pinctrl-names = "default";
+	};
diff --git a/Documentation/devicetree/bindings/iio/adc/mcp320x.txt b/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
index bcd3ac8e6e0c..7d64753df949 100644
--- a/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
+++ b/Documentation/devicetree/bindings/iio/adc/mcp320x.txt
@@ -29,15 +29,29 @@ Required properties:
 				"microchip,mcp3204"
 				"microchip,mcp3208"
 				"microchip,mcp3301"
+				"microchip,mcp3550-50"
+				"microchip,mcp3550-60"
+				"microchip,mcp3551"
+				"microchip,mcp3553"
 
 			NOTE: The use of the compatibles with no vendor prefix
 			is deprecated and only listed because old DT use them.
 
+	- spi-cpha, spi-cpol (boolean):
+			Either SPI mode (0,0) or (1,1) must be used, so specify
+			none or both of spi-cpha, spi-cpol.  The MCP3550/1/3
+			is more efficient in mode (1,1) as only 3 instead of
+			4 bytes need to be read from the ADC, but not all SPI
+			masters support it.
+
+	- vref-supply:	Phandle to the external reference voltage supply.
+
 Examples:
 spi_controller {
 	mcp3x0x@0 {
 		compatible = "mcp3002";
 		reg = <0>;
 		spi-max-frequency = <1000000>;
+		vref-supply = <&vref_reg>;
 	};
 };
diff --git a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
index 64dc4843c180..0df9befdaecc 100644
--- a/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/mt6577_auxadc.txt
@@ -12,6 +12,7 @@ for the Thermal Controller which holds a phandle to the AUXADC.
 Required properties:
   - compatible: Should be one of:
     - "mediatek,mt2701-auxadc": For MT2701 family of SoCs
+    - "mediatek,mt2712-auxadc": For MT2712 family of SoCs
     - "mediatek,mt7622-auxadc": For MT7622 family of SoCs
     - "mediatek,mt8173-auxadc": For MT8173 family of SoCs
   - reg: Address range of the AUXADC unit.
diff --git a/Documentation/devicetree/bindings/iio/dac/ds4424.txt b/Documentation/devicetree/bindings/iio/dac/ds4424.txt
new file mode 100644
index 000000000000..eaebbf8dab40
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ds4424.txt
@@ -0,0 +1,20 @@
+Maxim Integrated DS4422/DS4424 7-bit Sink/Source Current DAC Device Driver
+
+Datasheet publicly available at:
+https://datasheets.maximintegrated.com/en/ds/DS4422-DS4424.pdf
+
+Required properties:
+	- compatible: Should be one of
+		maxim,ds4422
+		maxim,ds4424
+	- reg: Should contain the DAC I2C address
+
+Optional properties:
+	- vcc-supply: Power supply is optional. If not defined, driver will ignore it.
+
+Example:
+	ds4224@10 {
+		compatible = "maxim,ds4424";
+		reg = <0x10>; /* When A0, A1 pins are ground */
+		vcc-supply = <&vcc_3v3>;
+	};
diff --git a/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt b/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt
new file mode 100644
index 000000000000..9cb0e10df704
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/dac/ti-dac082s085.txt
@@ -0,0 +1,34 @@
+Texas Instruments 8/10/12-bit 2/4-channel DAC driver
+
+Required properties:
+ - compatible:		Must be one of:
+			"ti,dac082s085"
+			"ti,dac102s085"
+			"ti,dac122s085"
+			"ti,dac084s085"
+			"ti,dac104s085"
+			"ti,dac124s085"
+ - reg: 		Chip select number.
+ - spi-cpha, spi-cpol:	SPI mode (0,1) or (1,0) must be used, so specify
+			either spi-cpha or spi-cpol (but not both).
+ - vref-supply: 	Phandle to the external reference voltage supply.
+
+For other required and optional properties of SPI slave nodes please refer to
+../../spi/spi-bus.txt.
+
+Example:
+	vref_2v5_reg: regulator-vref {
+		compatible = "regulator-fixed";
+		regulator-name = "2v5";
+		regulator-min-microvolt = <2500000>;
+		regulator-max-microvolt = <2500000>;
+		regulator-always-on;
+	};
+
+	dac@0 {
+		compatible = "ti,dac082s085";
+		reg = <0>;
+		spi-max-frequency = <40000000>;
+		spi-cpol;
+		vref-supply = <&vref_2v5_reg>;
+	};
diff --git a/Documentation/devicetree/bindings/iio/health/max30100.txt b/Documentation/devicetree/bindings/iio/health/max30100.txt
index 295a9edfa4fd..8d8176459d09 100644
--- a/Documentation/devicetree/bindings/iio/health/max30100.txt
+++ b/Documentation/devicetree/bindings/iio/health/max30100.txt
@@ -20,9 +20,9 @@ Optional properties:
 
 Example:
 
-max30100@057 {
+max30100@57 {
 	compatible = "maxim,max30100";
-	reg = <57>;
+	reg = <0x57>;
 	maxim,led-current-microamp = <24000 50000>;
 	interrupt-parent = <&gpio1>;
 	interrupts = <16 2>;
diff --git a/Documentation/devicetree/bindings/iio/health/max30102.txt b/Documentation/devicetree/bindings/iio/health/max30102.txt
index c695e7cbeefb..8629c18b0e78 100644
--- a/Documentation/devicetree/bindings/iio/health/max30102.txt
+++ b/Documentation/devicetree/bindings/iio/health/max30102.txt
@@ -20,7 +20,7 @@ Optional properties:
 
 Example:
 
-max30100@57 {
+max30102@57 {
 	compatible = "maxim,max30102";
 	reg = <0x57>;
 	maxim,red-led-current-microamp = <7000>;
diff --git a/Documentation/devicetree/bindings/iio/proximity/as3935.txt b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
index 38d74314b7ab..b6c1afa6f02d 100644
--- a/Documentation/devicetree/bindings/iio/proximity/as3935.txt
+++ b/Documentation/devicetree/bindings/iio/proximity/as3935.txt
@@ -16,6 +16,10 @@ Optional properties:
 	- ams,tuning-capacitor-pf: Calibration tuning capacitor stepping
 	  value 0 - 120pF. This will require using the calibration data from
 	  the manufacturer.
+	- ams,nflwdth: Set the noise and watchdog threshold register on
+	  startup. This will need to set according to the noise from the
+	  MCU board, and possibly the local environment. Refer to the
+	  datasheet for the threshold settings.
 
 Example:
 
@@ -27,4 +31,5 @@ as3935@0 {
 	interrupt-parent = <&gpio1>;
 	interrupts = <16 1>;
 	ams,tuning-capacitor-pf = <80>;
+	ams,nflwdth = <0x44>;
 };
diff --git a/Documentation/devicetree/bindings/iio/st-sensors.txt b/Documentation/devicetree/bindings/iio/st-sensors.txt
index 9ec6f5ce54fc..6f626f73417e 100644
--- a/Documentation/devicetree/bindings/iio/st-sensors.txt
+++ b/Documentation/devicetree/bindings/iio/st-sensors.txt
@@ -46,6 +46,8 @@ Accelerometers:
 - st,h3lis331dl-accel
 - st,lng2dm-accel
 - st,lis3l02dq
+- st,lis2dw12
+- st,lis3dhh
 
 Gyroscopes:
 - st,l3g4200d-gyro
@@ -71,3 +73,5 @@ Pressure sensors:
 - st,lps25h-press
 - st,lps331ap-press
 - st,lps22hb-press
+- st,lps33hw
+- st,lps35hw
diff --git a/Documentation/devicetree/bindings/input/pwm-vibrator.txt b/Documentation/devicetree/bindings/input/pwm-vibrator.txt
new file mode 100644
index 000000000000..09145d18491d
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/pwm-vibrator.txt
@@ -0,0 +1,66 @@
+* PWM vibrator device tree bindings
+
+Registers a PWM device as vibrator. It is expected, that the vibrator's
+strength increases based on the duty cycle of the enable PWM channel
+(100% duty cycle meaning strongest vibration, 0% meaning no vibration).
+
+The binding supports an optional direction PWM channel, that can be
+driven at fixed duty cycle. If available this is can be used to increase
+the vibration effect of some devices.
+
+Required properties:
+- compatible: should contain "pwm-vibrator"
+- pwm-names: Should contain "enable" and optionally "direction"
+- pwms: Should contain a PWM handle for each entry in pwm-names
+
+Optional properties:
+- vcc-supply: Phandle for the regulator supplying power
+- direction-duty-cycle-ns: Duty cycle of the direction PWM channel in
+                           nanoseconds, defaults to 50% of the channel's
+			   period.
+
+Example from Motorola Droid 4:
+
+&omap4_pmx_core {
+	vibrator_direction_pin: pinmux_vibrator_direction_pin {
+		pinctrl-single,pins = <
+		OMAP4_IOPAD(0x1ce, PIN_OUTPUT | MUX_MODE1) /* dmtimer8_pwm_evt (gpio_27) */
+		>;
+	};
+
+	vibrator_enable_pin: pinmux_vibrator_enable_pin {
+		pinctrl-single,pins = <
+		OMAP4_IOPAD(0X1d0, PIN_OUTPUT | MUX_MODE1) /* dmtimer9_pwm_evt (gpio_28) */
+		>;
+	};
+};
+
+/ {
+	pwm8: dmtimer-pwm {
+		pinctrl-names = "default";
+		pinctrl-0 = <&vibrator_direction_pin>;
+
+		compatible = "ti,omap-dmtimer-pwm";
+		#pwm-cells = <3>;
+		ti,timers = <&timer8>;
+		ti,clock-source = <0x01>;
+	};
+
+	pwm9: dmtimer-pwm {
+		pinctrl-names = "default";
+		pinctrl-0 = <&vibrator_enable_pin>;
+
+		compatible = "ti,omap-dmtimer-pwm";
+		#pwm-cells = <3>;
+		ti,timers = <&timer9>;
+		ti,clock-source = <0x01>;
+	};
+
+	vibrator {
+		compatible = "pwm-vibrator";
+		pwms = <&pwm8 0 1000000000 0>,
+		       <&pwm9 0 1000000000 0>;
+		pwm-names = "enable", "direction";
+		direction-duty-cycle-ns = <1000000000>;
+	};
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
new file mode 100644
index 000000000000..a83f9a5734ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.txt
@@ -0,0 +1,36 @@
+Amlogic meson GPIO interrupt controller
+
+Meson SoCs contains an interrupt controller which is able to watch the SoC
+pads and generate an interrupt on edge or level. The controller is essentially
+a 256 pads to 8 GIC interrupt multiplexer, with a filter block to select edge
+or level and polarity. It does not expose all 256 mux inputs because the
+documentation shows that the upper part is not mapped to any pad. The actual
+number of interrupt exposed depends on the SoC.
+
+Required properties:
+
+- compatible : must have "amlogic,meson8-gpio-intc� and either
+   “amlogic,meson8-gpio-intc� for meson8 SoCs (S802) or
+   “amlogic,meson8b-gpio-intc� for meson8b SoCs (S805) or
+   “amlogic,meson-gxbb-gpio-intc� for GXBB SoCs (S905) or
+   “amlogic,meson-gxl-gpio-intc� for GXL SoCs (S905X, S912)
+- interrupt-parent : a phandle to the GIC the interrupts are routed to.
+   Usually this is provided at the root level of the device tree as it is
+   common to most of the SoC.
+- reg : Specifies base physical address and size of the registers.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : Specifies the number of cells needed to encode an
+   interrupt source. The value must be 2.
+- meson,channel-interrupts: Array with the 8 upstream hwirq numbers. These
+   are the hwirqs used on the parent interrupt controller.
+
+Example:
+
+gpio_interrupt: interrupt-controller@9880 {
+	compatible = "amlogic,meson-gxbb-gpio-intc",
+		     "amlogic,meson-gpio-intc";
+	reg = <0x0 0x9880 0x0 0x10>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+	meson,channel-interrupts = <64 65 66 67 68 69 70 71>;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
index 4c29cdab0ea5..0a57f2f4167d 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.txt
@@ -75,6 +75,10 @@ These nodes must have the following properties:
 - reg: Specifies the base physical address and size of the ITS
   registers.
 
+Optional:
+- socionext,synquacer-pre-its: (u32, u32) tuple describing the untranslated
+  address and size of the pre-ITS window.
+
 The main GIC node must contain the appropriate #address-cells,
 #size-cells and ranges properties for the reg property of all ITS
 nodes.
@@ -99,7 +103,7 @@ Examples:
 			compatible = "arm,gic-v3-its";
 			msi-controller;
 			#msi-cells = <1>;
-			reg = <0x0 0x2c200000 0 0x200000>;
+			reg = <0x0 0x2c200000 0 0x20000>;
 		};
 	};
 
@@ -124,14 +128,14 @@ Examples:
 			compatible = "arm,gic-v3-its";
 			msi-controller;
 			#msi-cells = <1>;
-			reg = <0x0 0x2c200000 0 0x200000>;
+			reg = <0x0 0x2c200000 0 0x20000>;
 		};
 
 		gic-its@2c400000 {
 			compatible = "arm,gic-v3-its";
 			msi-controller;
 			#msi-cells = <1>;
-			reg = <0x0 0x2c400000 0 0x200000>;
+			reg = <0x0 0x2c400000 0 0x20000>;
 		};
 
 		ppi-partitions {
diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt b/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
index 448273a30a11..36df06c5c567 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,l2-intc.txt
@@ -2,7 +2,8 @@ Broadcom Generic Level 2 Interrupt Controller
 
 Required properties:
 
-- compatible: should be "brcm,l2-intc"
+- compatible: should be "brcm,l2-intc" for latched interrupt controllers
+              should be "brcm,bcm7271-l2-intc" for level interrupt controllers
 - reg: specifies the base physical address and size of the registers
 - interrupt-controller: identifies the node as an interrupt controller
 - #interrupt-cells: specifies the number of cells needed to encode an
diff --git a/Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt b/Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt
new file mode 100644
index 000000000000..caec07cc7149
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/openrisc,ompic.txt
@@ -0,0 +1,22 @@
+Open Multi-Processor Interrupt Controller
+
+Required properties:
+
+- compatible : This should be "openrisc,ompic"
+- reg : Specifies base physical address and size of the register space. The
+  size is based on the number of cores the controller has been configured
+  to handle, this should be set to 8 bytes per cpu core.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells : This should be set to 0 as this will not be an irq
+  parent.
+- interrupts : Specifies the interrupt line to which the ompic is wired.
+
+Example:
+
+ompic: interrupt-controller@98000000 {
+	compatible = "openrisc,ompic";
+	reg = <0x98000000 16>;
+	interrupt-controller;
+	#interrupt-cells = <0>;
+	interrupts = <1>;
+};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
index e3f052d8c11a..33c9a10fdc91 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt
@@ -13,6 +13,9 @@ Required properties:
     - "renesas,irqc-r8a7793" (R-Car M2-N)
     - "renesas,irqc-r8a7794" (R-Car E2)
     - "renesas,intc-ex-r8a7795" (R-Car H3)
+    - "renesas,intc-ex-r8a7796" (R-Car M3-W)
+    - "renesas,intc-ex-r8a77970" (R-Car V3M)
+    - "renesas,intc-ex-r8a77995" (R-Car D3)
 - #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in
   interrupts.txt in this directory
 - clocks: Must contain a reference to the functional clock.
diff --git a/Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt b/Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt
new file mode 100644
index 000000000000..8b2faefe29ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/interrupt-controller/socionext,synquacer-exiu.txt
@@ -0,0 +1,32 @@
+Socionext SynQuacer External Interrupt Unit (EXIU)
+
+The Socionext Synquacer SoC has an external interrupt unit (EXIU)
+that forwards a block of 32 configurable input lines to 32 adjacent
+level-high type GICv3 SPIs.
+
+Required properties:
+
+- compatible           : Should be "socionext,synquacer-exiu".
+- reg                  : Specifies base physical address and size of the
+                         control registers.
+- interrupt-controller : Identifies the node as an interrupt controller.
+- #interrupt-cells     : Specifies the number of cells needed to encode an
+                         interrupt source. The value must be 3.
+- interrupt-parent     : phandle of the GIC these interrupts are routed to.
+- socionext,spi-base   : The SPI number of the first SPI of the 32 adjacent
+                         ones the EXIU forwards its interrups to.
+
+Notes:
+
+- Only SPIs can use the EXIU as an interrupt parent.
+
+Example:
+
+	exiu: interrupt-controller@510c0000 {
+		compatible = "socionext,synquacer-exiu";
+		reg = <0x0 0x510c0000 0x0 0x20>;
+		interrupt-controller;
+		interrupt-parent = <&gic>;
+		#interrupt-cells = <3>;
+		socionext,spi-base = <112>;
+	};
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
index 6e7703d4ff5b..edf03f09244b 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/st,stm32-exti.txt
@@ -2,7 +2,9 @@ STM32 External Interrupt Controller
 
 Required properties:
 
-- compatible: Should be "st,stm32-exti"
+- compatible: Should be:
+    "st,stm32-exti"
+    "st,stm32h7-exti"
 - reg: Specifies base physical address and size of the registers
 - interrupt-controller: Indentifies the node as an interrupt controller
 - #interrupt-cells: Specifies the number of cells to encode an interrupt
diff --git a/Documentation/devicetree/bindings/leds/ams,as3645a.txt b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
index 12c5ef26ec73..fdc40e354a64 100644
--- a/Documentation/devicetree/bindings/leds/ams,as3645a.txt
+++ b/Documentation/devicetree/bindings/leds/ams,as3645a.txt
@@ -15,11 +15,14 @@ Required properties
 
 compatible	: Must be "ams,as3645a".
 reg		: The I2C address of the device. Typically 0x30.
+#address-cells	: 1
+#size-cells	: 0
 
 
-Required properties of the "flash" child node
-=============================================
+Required properties of the flash child node (0)
+===============================================
 
+reg: 0
 flash-timeout-us: Flash timeout in microseconds. The value must be in
 		  the range [100000, 850000] and divisible by 50000.
 flash-max-microamp: Maximum flash current in microamperes. Has to be
@@ -33,20 +36,21 @@ ams,input-max-microamp: Maximum flash controller input current. The
 			and divisible by 50000.
 
 
-Optional properties of the "flash" child node
-=============================================
+Optional properties of the flash child node
+===========================================
 
 label		: The label of the flash LED.
 
 
-Required properties of the "indicator" child node
-=================================================
+Required properties of the indicator child node (1)
+===================================================
 
+reg: 1
 led-max-microamp: Maximum indicator current. The allowed values are
 		  2500, 5000, 7500 and 10000.
 
-Optional properties of the "indicator" child node
-=================================================
+Optional properties of the indicator child node
+===============================================
 
 label		: The label of the indicator LED.
 
@@ -55,16 +59,20 @@ Example
 =======
 
 	as3645a@30 {
+		#address-cells: 1
+		#size-cells: 0
 		reg = <0x30>;
 		compatible = "ams,as3645a";
-		flash {
+		flash@0 {
+			reg = <0x0>;
 			flash-timeout-us = <150000>;
 			flash-max-microamp = <320000>;
 			led-max-microamp = <60000>;
 			ams,input-max-microamp = <1750000>;
 			label = "as3645a:flash";
 		};
-		indicator {
+		indicator@1 {
+			reg = <0x1>;
 			led-max-microamp = <10000>;
 			label = "as3645a:indicator";
 		};
diff --git a/Documentation/devicetree/bindings/mips/lantiq/fpi-bus.txt b/Documentation/devicetree/bindings/mips/lantiq/fpi-bus.txt
new file mode 100644
index 000000000000..0a2df4338332
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/fpi-bus.txt
@@ -0,0 +1,31 @@
+Lantiq XWAY SoC FPI BUS binding
+============================
+
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible			: Should be one of
+					"lantiq,xrx200-fpi"
+- reg				: The address and length of the XBAR
+				  configuration register.
+				  Address and length of the FPI bus itself.
+- lantiq,rcu			: A phandle to the RCU syscon
+- lantiq,offset-endianness	: Offset of the endianness configuration
+				  register
+
+-------------------------------------------------------------------------------
+Example for the FPI on the xrx200 SoCs:
+	fpi@10000000 {
+		compatible = "lantiq,xrx200-fpi";
+		ranges = <0x0 0x10000000 0xf000000>;
+		reg =	<0x1f400000 0x1000>,
+			<0x10000000 0xf000000>;
+		lantiq,rcu = <&rcu0>;
+		lantiq,offset-endianness = <0x4c>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		gptu@e100a00 {
+			......
+		};
+	};
diff --git a/Documentation/devicetree/bindings/mips/lantiq/rcu-gphy.txt b/Documentation/devicetree/bindings/mips/lantiq/rcu-gphy.txt
new file mode 100644
index 000000000000..a0c19bd1ce66
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/rcu-gphy.txt
@@ -0,0 +1,36 @@
+Lantiq XWAY SoC GPHY binding
+============================
+
+This binding describes a software-defined ethernet PHY, provided by the RCU
+module on newer Lantiq XWAY SoCs (xRX200 and newer).
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible		: Should be one of
+				"lantiq,xrx200a1x-gphy"
+				"lantiq,xrx200a2x-gphy"
+				"lantiq,xrx300-gphy"
+				"lantiq,xrx330-gphy"
+- reg			: Addrress of the GPHY FW load address register
+- resets		: Must reference the RCU GPHY reset bit
+- reset-names		: One entry, value must be "gphy" or optional "gphy2"
+- clocks		: A reference to the (PMU) GPHY clock gate
+
+Optional properties:
+- lantiq,gphy-mode	: GPHY_MODE_GE (default) or GPHY_MODE_FE as defined in
+			  <dt-bindings/mips/lantiq_xway_gphy.h>
+
+
+-------------------------------------------------------------------------------
+Example for the GPHys on the xRX200 SoCs:
+
+#include <dt-bindings/mips/lantiq_rcu_gphy.h>
+	gphy0: gphy@20 {
+		compatible = "lantiq,xrx200a2x-gphy";
+		reg = <0x20 0x4>;
+
+		resets = <&reset0 31 30>, <&reset1 7 7>;
+		reset-names = "gphy", "gphy2";
+		clocks = <&pmu0 XRX200_PMU_GATE_GPHY>;
+		lantiq,gphy-mode = <GPHY_MODE_GE>;
+	};
diff --git a/Documentation/devicetree/bindings/mips/lantiq/rcu.txt b/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
new file mode 100644
index 000000000000..a086f1e1cdd7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/rcu.txt
@@ -0,0 +1,89 @@
+Lantiq XWAY SoC RCU binding
+===========================
+
+This binding describes the RCU (reset controller unit) multifunction device,
+where each sub-device has it's own set of registers.
+
+The RCU register range is used for multiple purposes. Mostly one device
+uses one or multiple register exclusively, but for some registers some
+bits are for one driver and some other bits are for a different driver.
+With this patch all accesses to the RCU registers will go through
+syscon.
+
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible	: The first and second values must be:
+		  "lantiq,xrx200-rcu", "simple-mfd", "syscon"
+- reg		: The address and length of the system control registers
+
+
+-------------------------------------------------------------------------------
+Example of the RCU bindings on a xRX200 SoC:
+	rcu0: rcu@203000 {
+		compatible = "lantiq,xrx200-rcu", "simple-mfd", "syscon";
+		reg = <0x203000 0x100>;
+		ranges = <0x0 0x203000 0x100>;
+		big-endian;
+
+		gphy0: gphy@20 {
+			compatible = "lantiq,xrx200a2x-gphy";
+			reg = <0x20 0x4>;
+
+			resets = <&reset0 31 30>, <&reset1 7 7>;
+			reset-names = "gphy", "gphy2";
+			lantiq,gphy-mode = <GPHY_MODE_GE>;
+		};
+
+		gphy1: gphy@68 {
+			compatible = "lantiq,xrx200a2x-gphy";
+			reg = <0x68 0x4>;
+
+			resets = <&reset0 29 28>, <&reset1 6 6>;
+			reset-names = "gphy", "gphy2";
+			lantiq,gphy-mode = <GPHY_MODE_GE>;
+		};
+
+		reset0: reset-controller@10 {
+			compatible = "lantiq,xrx200-reset";
+			reg = <0x10 4>, <0x14 4>;
+
+			#reset-cells = <2>;
+		};
+
+		reset1: reset-controller@48 {
+			compatible = "lantiq,xrx200-reset";
+			reg = <0x48 4>, <0x24 4>;
+
+			#reset-cells = <2>;
+		};
+
+		usb_phy0: usb2-phy@18 {
+			compatible = "lantiq,xrx200-usb2-phy";
+			reg = <0x18 4>, <0x38 4>;
+			status = "disabled";
+
+			resets = <&reset1 4 4>, <&reset0 4 4>;
+			reset-names = "phy", "ctrl";
+			#phy-cells = <0>;
+		};
+
+		usb_phy1: usb2-phy@34 {
+			compatible = "lantiq,xrx200-usb2-phy";
+			reg = <0x34 4>, <0x3C 4>;
+			status = "disabled";
+
+			resets = <&reset1 5 4>, <&reset0 4 4>;
+			reset-names = "phy", "ctrl";
+			#phy-cells = <0>;
+		};
+
+		reboot@10 {
+			compatible = "syscon-reboot";
+			reg = <0x10 4>;
+
+			regmap = <&rcu0>;
+			offset = <0x10>;
+			mask = <0x40000000>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/mips/ni.txt b/Documentation/devicetree/bindings/mips/ni.txt
new file mode 100644
index 000000000000..722bf2d62da9
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/ni.txt
@@ -0,0 +1,7 @@
+National Instruments MIPS platforms
+
+required root node properties:
+	- compatible: must be "ni,169445"
+
+CPU Nodes
+	- compatible: must be "mti,mips14KEc"
diff --git a/Documentation/devicetree/bindings/mips/ralink.txt b/Documentation/devicetree/bindings/mips/ralink.txt
index b35a8d04f8b6..a16e8d7fe56c 100644
--- a/Documentation/devicetree/bindings/mips/ralink.txt
+++ b/Documentation/devicetree/bindings/mips/ralink.txt
@@ -15,3 +15,4 @@ value must be one of the following values:
   ralink,rt5350-soc
   ralink,mt7620a-soc
   ralink,mt7620n-soc
+  ralink,mt7628a-soc
diff --git a/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt
new file mode 100644
index 000000000000..8765c605e6bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/amlogic,meson-mx-sdio.txt
@@ -0,0 +1,54 @@
+* Amlogic Meson6, Meson8 and Meson8b SDIO/MMC controller
+
+The highspeed MMC host controller on Amlogic SoCs provides an interface
+for MMC, SD, SDIO and SDHC types of memory cards.
+
+Supported maximum speeds are the ones of the eMMC standard 4.41 as well
+as the speed of SD standard 2.0.
+
+The hardware provides an internal "mux" which allows up to three slots
+to be controlled. Only one slot can be accessed at a time.
+
+Required properties:
+ - compatible : must be one of
+	- "amlogic,meson8-sdio"
+	- "amlogic,meson8b-sdio"
+	along with the generic "amlogic,meson-mx-sdio"
+ - reg : mmc controller base registers
+ - interrupts : mmc controller interrupt
+ - #address-cells : must be 1
+ - size-cells : must be 0
+ - clocks : phandle to clock providers
+ - clock-names : must contain "core" and "clkin"
+
+Required child nodes:
+A node for each slot provided by the MMC controller is required.
+NOTE: due to a driver limitation currently only one slot (= child node)
+      is supported!
+
+Required properties on each child node (= slot):
+ - compatible : must be "mmc-slot" (see mmc.txt within this directory)
+ - reg : the slot (or "port") ID
+
+Optional properties on each child node (= slot):
+ - bus-width : must be 1 or 4 (8-bit bus is not supported)
+ - for cd and all other additional generic mmc parameters
+   please refer to mmc.txt within this directory
+
+Examples:
+	mmc@c1108c20 {
+		compatible = "amlogic,meson8-sdio", "amlogic,meson-mx-sdio";
+		reg = <0xc1108c20 0x20>;
+		interrupts = <0 28 1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&clkc CLKID_SDIO>, <&clkc CLKID_CLK81>;
+		clock-names = "core", "clkin";
+
+		slot@1 {
+			compatible = "mmc-slot";
+			reg = <1>;
+
+			bus-width = <4>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt b/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
index b878a1e305af..ed1456f5c94d 100644
--- a/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/marvell,xenon-sdhci.txt
@@ -16,11 +16,13 @@ Required Properties:
 
 - clocks:
   Array of clocks required for SDHC.
-  Require at least input clock for Xenon IP core.
+  Require at least input clock for Xenon IP core. For Armada AP806 and
+  CP110, the AXI clock is also mandatory.
 
 - clock-names:
   Array of names corresponding to clocks property.
   The input clock for Xenon IP core should be named as "core".
+  The input clock for the AXI bus must be named as "axi".
 
 - reg:
   * For "marvell,armada-3700-sdhci", two register areas.
@@ -106,8 +108,8 @@ Example:
 		compatible = "marvell,armada-ap806-sdhci";
 		reg = <0xaa0000 0x1000>;
 		interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>
-		clocks = <&emmc_clk>;
-		clock-names = "core";
+		clocks = <&emmc_clk>,<&axi_clk>;
+		clock-names = "core", "axi";
 		bus-width = <4>;
 		marvell,xenon-phy-slow-mode;
 		marvell,xenon-tun-count = <11>;
@@ -126,8 +128,8 @@ Example:
 		interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>
 		vqmmc-supply = <&sd_vqmmc_regulator>;
 		vmmc-supply = <&sd_vmmc_regulator>;
-		clocks = <&sdclk>;
-		clock-names = "core";
+		clocks = <&sdclk>, <&axi_clk>;
+		clock-names = "core", "axi";
 		bus-width = <4>;
 		marvell,xenon-tun-count = <9>;
 	};
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt
index b32ade645ad9..94a90b49a692 100644
--- a/Documentation/devicetree/bindings/mmc/mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc.txt
@@ -53,6 +53,9 @@ Optional properties:
 - no-sdio: controller is limited to send sdio cmd during initialization
 - no-sd: controller is limited to send sd cmd during initialization
 - no-mmc: controller is limited to send mmc cmd during initialization
+- fixed-emmc-driver-type: for non-removable eMMC, enforce this driver type.
+  The value <n> is the driver type as specified in the eMMC specification
+  (table 206 in spec version 5.1).
 
 *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
 polarity properties, we have to fix the meaning of the "normal" and "inverted"
diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
index 4182ea36ca5b..72d2a734ab85 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
@@ -7,10 +7,18 @@ This file documents differences between the core properties in mmc.txt
 and the properties used by the msdc driver.
 
 Required properties:
-- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc"
+- compatible: value should be either of the following.
+	"mediatek,mt8135-mmc": for mmc host ip compatible with mt8135
+	"mediatek,mt8173-mmc": for mmc host ip compatible with mt8173
+	"mediatek,mt2701-mmc": for mmc host ip compatible with mt2701
+	"mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
+- reg: physical base address of the controller and length
 - interrupts: Should contain MSDC interrupt number
-- clocks: MSDC source clock, HCLK
-- clock-names: "source", "hclk"
+- clocks: Should contain phandle for the clock feeding the MMC controller
+- clock-names: Should contain the following:
+	"source" - source clock (required)
+	"hclk" - HCLK which used for host (required)
+	"source_cg" - independent source clock gate (required for MT2712)
 - pinctrl-names: should be "default", "state_uhs"
 - pinctrl-0: should contain default/high speed pin ctrl
 - pinctrl-1: should contain uhs mode pin ctrl
@@ -30,6 +38,10 @@ Optional properties:
 - mediatek,hs400-cmd-resp-sel-rising:  HS400 command response sample selection
 				       If present,HS400 command responses are sampled on rising edges.
 				       If not present,HS400 command responses are sampled on falling edges.
+- mediatek,latch-ck: Some SoCs do not support enhance_rx, need set correct latch-ck to avoid data crc
+		     error caused by stop clock(fifo full)
+		     Valid range = [0:0x7]. if not present, default value is 0.
+		     applied to compatible "mediatek,mt2701-mmc".
 
 Examples:
 mmc0: mmc@11230000 {
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt b/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt
index de2c53cff4f1..3ee9263adf73 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-fujitsu.txt
@@ -15,6 +15,8 @@ Required properties:
 Optional properties:
 - vqmmc-supply: phandle to the regulator device tree node, mentioned
   as the VCCQ/VDD_IO supply in the eMMC/SD specs.
+- fujitsu,cmd-dat-delay-select: boolean property indicating that this host
+  requires the CMD_DAT_DELAY control to be enabled.
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
index 0576264eab5e..bfdcdc4ccdff 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
@@ -18,6 +18,8 @@ Required properties:
 	"core"	- SDC MMC clock (MCLK) (required)
 	"bus"	- SDCC bus voter clock (optional)
 	"xo"	- TCXO clock (optional)
+	"cal"	- reference clock for RCLK delay calibration (optional)
+	"sleep"	- sleep clock for RCLK delay calibration (optional)
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-omap.txt b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
new file mode 100644
index 000000000000..51775a372c06
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-omap.txt
@@ -0,0 +1,16 @@
+* TI OMAP SDHCI Controller
+
+Refer to mmc.txt for standard MMC bindings.
+
+Required properties:
+- compatible: Should be "ti,dra7-sdhci" for DRA7 and DRA72 controllers
+- ti,hwmods: Must be "mmc<n>", <n> is controller instance starting 1
+
+Example:
+	mmc1: mmc@4809c000 {
+		compatible = "ti,dra7-sdhci";
+		reg = <0x4809c000 0x400>;
+		ti,hwmods = "mmc1";
+		bus-width = <4>;
+		vmmc-supply = <&vmmc>; /* phandle to regulator node */
+	};
diff --git a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
index 54ef642f23a0..3c6762430fd9 100644
--- a/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/tmio_mmc.txt
@@ -10,7 +10,7 @@ described in mmc.txt, can be used. Additionally the following tmio_mmc-specific
 optional bindings can be used.
 
 Required properties:
-- compatible:	"renesas,sdhi-shmobile" - a generic sh-mobile SDHI unit
+- compatible: should contain one or more of the following:
 		"renesas,sdhi-sh73a0" - SDHI IP on SH73A0 SoC
 		"renesas,sdhi-r7s72100" - SDHI IP on R7S72100 SoC
 		"renesas,sdhi-r8a73a4" - SDHI IP on R8A73A4 SoC
@@ -26,6 +26,16 @@ Required properties:
 		"renesas,sdhi-r8a7794" - SDHI IP on R8A7794 SoC
 		"renesas,sdhi-r8a7795" - SDHI IP on R8A7795 SoC
 		"renesas,sdhi-r8a7796" - SDHI IP on R8A7796 SoC
+		"renesas,sdhi-shmobile" - a generic sh-mobile SDHI controller
+		"renesas,rcar-gen1-sdhi" - a generic R-Car Gen1 SDHI controller
+		"renesas,rcar-gen2-sdhi" - a generic R-Car Gen2 or RZ/G1
+					   SDHI controller
+		"renesas,rcar-gen3-sdhi" - a generic R-Car Gen3 SDHI controller
+
+
+		When compatible with the generic version, nodes must list
+		the SoC-specific version corresponding to the platform
+		first followed by the generic version.
 
 - clocks: Most controllers only have 1 clock source per channel. However, on
 	  some variations of this controller, the internal card detection
@@ -43,3 +53,61 @@ Optional properties:
 - pinctrl-names: should be "default", "state_uhs"
 - pinctrl-0: should contain default/high speed pin ctrl
 - pinctrl-1: should contain uhs mode pin ctrl
+
+Example: R8A7790 (R-Car H2) SDHI controller nodes
+
+	sdhi0: sd@ee100000 {
+		compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
+		reg = <0 0xee100000 0 0x328>;
+		interrupts = <GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 314>;
+		dmas = <&dmac0 0xcd>, <&dmac0 0xce>,
+		       <&dmac1 0xcd>, <&dmac1 0xce>;
+		dma-names = "tx", "rx", "tx", "rx";
+		max-frequency = <195000000>;
+		power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+		resets = <&cpg 314>;
+		status = "disabled";
+	};
+
+	sdhi1: sd@ee120000 {
+		compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
+		reg = <0 0xee120000 0 0x328>;
+		interrupts = <GIC_SPI 166 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 313>;
+		dmas = <&dmac0 0xc9>, <&dmac0 0xca>,
+		       <&dmac1 0xc9>, <&dmac1 0xca>;
+		dma-names = "tx", "rx", "tx", "rx";
+		max-frequency = <195000000>;
+		power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+		resets = <&cpg 313>;
+		status = "disabled";
+	};
+
+	sdhi2: sd@ee140000 {
+		compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
+		reg = <0 0xee140000 0 0x100>;
+		interrupts = <GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 312>;
+		dmas = <&dmac0 0xc1>, <&dmac0 0xc2>,
+		       <&dmac1 0xc1>, <&dmac1 0xc2>;
+		dma-names = "tx", "rx", "tx", "rx";
+		max-frequency = <97500000>;
+		power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+		resets = <&cpg 312>;
+		status = "disabled";
+	};
+
+	sdhi3: sd@ee160000 {
+		compatible = "renesas,sdhi-r8a7790", "renesas,rcar-gen2-sdhi";
+		reg = <0 0xee160000 0 0x100>;
+		interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cpg CPG_MOD 311>;
+		dmas = <&dmac0 0xd3>, <&dmac0 0xd4>,
+		       <&dmac1 0xd3>, <&dmac1 0xd4>;
+		dma-names = "tx", "rx", "tx", "rx";
+		max-frequency = <97500000>;
+		power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+		resets = <&cpg 311>;
+		status = "disabled";
+	};
diff --git a/Documentation/devicetree/bindings/net/marvell-pp2.txt b/Documentation/devicetree/bindings/net/marvell-pp2.txt
index 7e2dad08a12e..1814fa13f6ab 100644
--- a/Documentation/devicetree/bindings/net/marvell-pp2.txt
+++ b/Documentation/devicetree/bindings/net/marvell-pp2.txt
@@ -21,8 +21,9 @@ Required properties:
 	- main controller clock (for both armada-375-pp2 and armada-7k-pp2)
 	- GOP clock (for both armada-375-pp2 and armada-7k-pp2)
 	- MG clock (only for armada-7k-pp2)
-- clock-names: names of used clocks, must be "pp_clk", "gop_clk" and
-  "mg_clk" (the latter only for armada-7k-pp2).
+	- AXI clock (only for armada-7k-pp2)
+- clock-names: names of used clocks, must be "pp_clk", "gop_clk", "mg_clk"
+  and "axi_clk" (the 2 latter only for armada-7k-pp2).
 
 The ethernet ports are represented by subnodes. At least one port is
 required.
@@ -78,8 +79,9 @@ Example for marvell,armada-7k-pp2:
 cpm_ethernet: ethernet@0 {
 	compatible = "marvell,armada-7k-pp22";
 	reg = <0x0 0x100000>, <0x129000 0xb000>;
-	clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>, <&cpm_syscon0 1 5>;
-	clock-names = "pp_clk", "gop_clk", "gp_clk";
+	clocks = <&cpm_syscon0 1 3>, <&cpm_syscon0 1 9>,
+		 <&cpm_syscon0 1 5>, <&cpm_syscon0 1 18>;
+	clock-names = "pp_clk", "gop_clk", "gp_clk", "axi_clk";
 
 	eth0: eth0 {
 		interrupts = <ICU_GRP_NSR 39 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
index 6af8eed1adeb..9c16ee2965a2 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
@@ -4,6 +4,7 @@ The device node has following properties.
 
 Required properties:
  - compatible: should be "rockchip,<name>-gamc"
+   "rockchip,rk3128-gmac": found on RK312x SoCs
    "rockchip,rk3228-gmac": found on RK322x SoCs
    "rockchip,rk3288-gmac": found on RK3288 SoCs
    "rockchip,rk3328-gmac": found on RK3328 SoCs
diff --git a/Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt b/Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt
new file mode 100644
index 000000000000..4950c794ecbb
--- /dev/null
+++ b/Documentation/devicetree/bindings/openrisc/opencores/or1ksim.txt
@@ -0,0 +1,39 @@
+OpenRISC Generic SoC
+====================
+
+Boards and FPGA SoC's which support the OpenRISC standard platform.  The
+platform essentially follows the conventions of the OpenRISC architecture
+specification, however some aspects, such as the boot protocol have been defined
+by the Linux port.
+
+Required properties
+-------------------
+ - compatible: Must include "opencores,or1ksim"
+
+CPU nodes:
+----------
+A "cpus" node is required.  Required properties:
+ - #address-cells: Must be 1.
+ - #size-cells: Must be 0.
+A CPU sub-node is also required for at least CPU 0.  Since the topology may
+be probed via CPS, it is not necessary to specify secondary CPUs.  Required
+properties:
+ - compatible: Must be "opencores,or1200-rtlsvn481".
+ - reg: CPU number.
+ - clock-frequency: The CPU clock frequency in Hz.
+Example:
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu@0 {
+			compatible = "opencores,or1200-rtlsvn481";
+			reg = <0>;
+			clock-frequency = <20000000>;
+		};
+	};
+
+
+Boot protocol
+-------------
+The bootloader may pass the following arguments to the kernel:
+ - r3:  address of a flattened device-tree blob or 0x0.
diff --git a/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
new file mode 100644
index 000000000000..24a0d06acd1d
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,brcmstb-usb-phy.txt
@@ -0,0 +1,43 @@
+Broadcom STB USB PHY
+
+Required properties:
+ - compatible: brcm,brcmstb-usb-phy
+ - reg: two offset and length pairs.
+	The first pair specifies a manditory set of memory mapped
+	registers used for general control of the PHY.
+	The second pair specifies optional registers used by some of
+	the SoCs that support USB 3.x
+ - #phy-cells: Shall be 1 as it expects one argument for setting
+	       the type of the PHY. Possible values are:
+	       - PHY_TYPE_USB2 for USB1.1/2.0 PHY
+	       - PHY_TYPE_USB3 for USB3.x PHY
+
+Optional Properties:
+- clocks : clock phandles.
+- clock-names: String, clock name.
+- brcm,ipp: Boolean, Invert Port Power.
+  Possible values are: 0 (Don't invert), 1 (Invert)
+- brcm,ioc: Boolean, Invert Over Current detection.
+  Possible values are: 0 (Don't invert), 1 (Invert)
+NOTE: one or both of the following two properties must be set
+- brcm,has-xhci: Boolean indicating the phy has an XHCI phy.
+- brcm,has-eohci: Boolean indicating the phy has an EHCI/OHCI phy.
+- dr_mode: String, PHY Device mode.
+  Possible values are: "host", "peripheral ", "drd" or "typec-pd"
+  If this property is not defined, the phy will default to "host" mode.
+
+Example:
+
+usbphy_0: usb-phy@f0470200 {
+	reg = <0xf0470200 0xb8>,
+		<0xf0471940 0x6c0>;
+	compatible = "brcm,brcmstb-usb-phy";
+	#phy-cells = <1>;
+	dr_mode = "host"
+	brcm,ioc = <1>;
+	brcm,ipp = <1>;
+	brcm,has-xhci;
+	brcm,has-eohci;
+	clocks = <&usb20>, <&usb30>;
+	clock-names = "sw_usb", "sw_usb3";
+};
diff --git a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
index 97977cd29a98..0aced97d8092 100644
--- a/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
+++ b/Documentation/devicetree/bindings/phy/brcm-sata-phy.txt
@@ -27,7 +27,16 @@ Sub-nodes optional properties:
      This property is not applicable for "brcm,iproc-ns2-sata-phy",
      "brcm,iproc-nsp-sata-phy" and "brcm,iproc-sr-sata-phy".
 
-Example:
+- brcm,rxaeq-mode: string that indicates the desired RX equalizer
+  mode, possible values are:
+	"off" (equivalent to not specifying the property)
+	"auto"
+	"manual" (brcm,rxaeq-value is used in that case)
+
+- brcm,rxaeq-value: when 'rxaeq-mode' is set to "manual", provides the RX
+  equalizer value that should be used. Allowed range is 0..63.
+
+Example
 	sata-phy@f0458100 {
 		compatible = "brcm,bcm7445-sata-phy", "brcm,phy-sata3";
 		reg = <0xf0458100 0x1e00>, <0xf045804c 0x10>;
diff --git a/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt b/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt
new file mode 100644
index 000000000000..643948b6b576
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-lantiq-rcu-usb2.txt
@@ -0,0 +1,40 @@
+Lantiq XWAY SoC RCU USB 1.1/2.0 PHY binding
+===========================================
+
+This binding describes the USB PHY hardware provided by the RCU module on the
+Lantiq XWAY SoCs.
+
+This node has to be a sub node of the Lantiq RCU block.
+
+-------------------------------------------------------------------------------
+Required properties (controller (parent) node):
+- compatible	: Should be one of
+			"lantiq,ase-usb2-phy"
+			"lantiq,danube-usb2-phy"
+			"lantiq,xrx100-usb2-phy"
+			"lantiq,xrx200-usb2-phy"
+			"lantiq,xrx300-usb2-phy"
+- reg		: Defines the following sets of registers in the parent
+		  syscon device
+			- Offset of the USB PHY configuration register
+			- Offset of the USB Analog configuration
+			  register (only for xrx200 and xrx200)
+- clocks	: References to the (PMU) "phy" clk gate.
+- clock-names	: Must be "phy"
+- resets	: References to the RCU USB configuration reset bits.
+- reset-names	: Must be one of the following:
+			"phy" (optional)
+			"ctrl" (shared)
+
+-------------------------------------------------------------------------------
+Example for the USB PHYs on an xRX200 SoC:
+	usb_phy0: usb2-phy@18 {
+		compatible = "lantiq,xrx200-usb2-phy";
+		reg = <0x18 4>, <0x38 4>;
+
+		clocks = <&pmu PMU_GATE_USB0_PHY>;
+		clock-names = "phy";
+		resets = <&reset1 4 4>, <&reset0 4 4>;
+		reset-names = "phy", "ctrl";
+		#phy-cells = <0>;
+	};
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
index 91da947ae9b6..eeb9e1874ea6 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen2-phy.txt
@@ -4,10 +4,13 @@ This file provides information on what the device node for the R-Car generation
 2 USB PHY contains.
 
 Required properties:
-- compatible: "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC.
+- compatible: "renesas,usb-phy-r8a7743" if the device is a part of R8A7743 SoC.
+	      "renesas,usb-phy-r8a7745" if the device is a part of R8A7745 SoC.
+	      "renesas,usb-phy-r8a7790" if the device is a part of R8A7790 SoC.
 	      "renesas,usb-phy-r8a7791" if the device is a part of R8A7791 SoC.
 	      "renesas,usb-phy-r8a7794" if the device is a part of R8A7794 SoC.
-	      "renesas,rcar-gen2-usb-phy" for a generic R-Car Gen2 compatible device.
+	      "renesas,rcar-gen2-usb-phy" for a generic R-Car Gen2 or
+					  RZ/G1 compatible device.
 
 	      When compatible with the generic version, nodes must list the
 	      SoC-specific version corresponding to the platform first
diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
index ace9cce2704a..99b651b33110 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
@@ -8,6 +8,8 @@ Required properties:
 	      SoC.
 	      "renesas,usb2-phy-r8a7796" if the device is a part of an R8A7796
 	      SoC.
+	      "renesas,usb2-phy-r8a77995" if the device is a part of an
+	      R8A77995 SoC.
 	      "renesas,rcar-gen3-usb2-phy" for a generic R-Car Gen3 compatible device.
 
 	      When compatible with the generic version, nodes must list the
diff --git a/Documentation/devicetree/bindings/regulator/da9211.txt b/Documentation/devicetree/bindings/regulator/da9211.txt
index 0f2a6f8fcafd..27717e816e71 100644
--- a/Documentation/devicetree/bindings/regulator/da9211.txt
+++ b/Documentation/devicetree/bindings/regulator/da9211.txt
@@ -1,8 +1,9 @@
-* Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 Voltage Regulator
+* Dialog Semiconductor DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
+ Voltage Regulator
 
 Required properties:
-- compatible: "dlg,da9211" or "dlg,da9212" or "dlg,da9213"
-  or "dlg,da9214" or "dlg,da9215"
+- compatible: "dlg,da9211" or "dlg,da9212" or "dlg,da9213" or "dlg,da9223"
+  or "dlg,da9214" or "dlg,da9224" or "dlg,da9215" or "dlg,da9225"
 - reg: I2C slave address, usually 0x68.
 - interrupts: the interrupt outputs of the controller
 - regulators: A node that houses a sub-node for each regulator within the
@@ -16,7 +17,6 @@ Optional properties:
 - Any optional property defined in regulator.txt
 
 Example 1) DA9211
-
 	pmic: da9211@68 {
 		compatible = "dlg,da9211";
 		reg = <0x68>;
@@ -35,7 +35,6 @@ Example 1) DA9211
 	};
 
 Example 2) DA9212
-
 	pmic: da9212@68 {
 		compatible = "dlg,da9212";
 		reg = <0x68>;
@@ -79,7 +78,25 @@ Example 3) DA9213
 		};
 	};
 
-Example 4) DA9214
+Example 4) DA9223
+	pmic: da9223@68 {
+		compatible = "dlg,da9223";
+		reg = <0x68>;
+		interrupts = <3 27>;
+
+		regulators {
+			BUCKA {
+				regulator-name = "VBUCKA";
+				regulator-min-microvolt = < 300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp 	= <3000000>;
+				regulator-max-microamp 	= <6000000>;
+				enable-gpios = <&gpio 27 0>;
+			};
+		};
+	};
+
+Example 5) DA9214
 	pmic: da9214@68 {
 		compatible = "dlg,da9214";
 		reg = <0x68>;
@@ -105,7 +122,33 @@ Example 4) DA9214
 		};
 	};
 
-Example 5) DA9215
+Example 6) DA9224
+	pmic: da9224@68 {
+		compatible = "dlg,da9224";
+		reg = <0x68>;
+		interrupts = <3 27>;
+
+		regulators {
+			BUCKA {
+				regulator-name = "VBUCKA";
+				regulator-min-microvolt = < 300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp 	= <3000000>;
+				regulator-max-microamp 	= <6000000>;
+				enable-gpios = <&gpio 27 0>;
+			};
+			BUCKB {
+				regulator-name = "VBUCKB";
+				regulator-min-microvolt = < 300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp 	= <3000000>;
+				regulator-max-microamp 	= <6000000>;
+				enable-gpios = <&gpio 17 0>;
+			};
+		};
+	};
+
+Example 7) DA9215
 	pmic: da9215@68 {
 		compatible = "dlg,da9215";
 		reg = <0x68>;
@@ -131,3 +174,28 @@ Example 5) DA9215
 		};
 	};
 
+Example 8) DA9225
+	pmic: da9225@68 {
+		compatible = "dlg,da9225";
+		reg = <0x68>;
+		interrupts = <3 27>;
+
+		regulators {
+			BUCKA {
+				regulator-name = "VBUCKA";
+				regulator-min-microvolt = < 300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp 	= <4000000>;
+				regulator-max-microamp 	= <7000000>;
+				enable-gpios = <&gpio 27 0>;
+			};
+			BUCKB {
+				regulator-name = "VBUCKB";
+				regulator-min-microvolt = < 300000>;
+				regulator-max-microvolt = <1570000>;
+				regulator-min-microamp 	= <4000000>;
+				regulator-max-microamp 	= <7000000>;
+				enable-gpios = <&gpio 17 0>;
+			};
+		};
+	};
diff --git a/Documentation/devicetree/bindings/regulator/pfuze100.txt b/Documentation/devicetree/bindings/regulator/pfuze100.txt
index 444c47831a40..c6dd3f5e485b 100644
--- a/Documentation/devicetree/bindings/regulator/pfuze100.txt
+++ b/Documentation/devicetree/bindings/regulator/pfuze100.txt
@@ -21,7 +21,7 @@ Each regulator is defined using the standard binding for regulators.
 
 Example 1: PFUZE100
 
-	pmic: pfuze100@08 {
+	pmic: pfuze100@8 {
 		compatible = "fsl,pfuze100";
 		reg = <0x08>;
 
@@ -122,7 +122,7 @@ Example 1: PFUZE100
 
 Example 2: PFUZE200
 
-	pmic: pfuze200@08 {
+	pmic: pfuze200@8 {
 		compatible = "fsl,pfuze200";
 		reg = <0x08>;
 
@@ -216,7 +216,7 @@ Example 2: PFUZE200
 
 Example 3: PFUZE3000
 
-	pmic: pfuze3000@08 {
+	pmic: pfuze3000@8 {
 		compatible = "fsl,pfuze3000";
 		reg = <0x08>;
 
diff --git a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
index 0fa3b0fac129..57d2c65899df 100644
--- a/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/qcom,spmi-regulator.txt
@@ -8,6 +8,7 @@ Qualcomm SPMI Regulators
 			"qcom,pm8916-regulators"
 			"qcom,pm8941-regulators"
 			"qcom,pm8994-regulators"
+			"qcom,pmi8994-regulators"
 
 - interrupts:
 	Usage: optional
@@ -100,6 +101,15 @@ Qualcomm SPMI Regulators
 	Definition: Reference to regulator supplying the input pin, as
 		    described in the data sheet.
 
+- vdd_s1-supply:
+- vdd_s2-supply:
+- vdd_s3-supply:
+- vdd_l1-supply:
+	Usage: optional (pmi8994 only)
+	Value type: <phandle>
+	Definition: Reference to regulator supplying the input pin, as
+		    described in the data sheet.
+
 
 The regulator node houses sub-nodes for each regulator within the device. Each
 sub-node is identified using the node's name, with valid values listed for each
@@ -122,6 +132,9 @@ pm8994:
 	l6, l7, l8, l9, l10, l11, l12, l13, l14, l15, l16, l17, l18, l19, l20,
 	l21, l22, l23, l24, l25, l26, l27, l28, l29, l30, l31, l32, lvs1, lvs2
 
+pmi8994:
+	s1, s2, s3, l1
+
 The content of each sub-node is defined by the standard binding for regulators -
 see regulator.txt - with additional custom properties described below:
 
diff --git a/Documentation/devicetree/bindings/reset/lantiq,reset.txt b/Documentation/devicetree/bindings/reset/lantiq,reset.txt
new file mode 100644
index 000000000000..c6aef36b7d15
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/lantiq,reset.txt
@@ -0,0 +1,30 @@
+Lantiq XWAY SoC RCU reset controller binding
+============================================
+
+This binding describes a reset-controller found on the RCU module on Lantiq
+XWAY SoCs.
+
+This node has to be a sub node of the Lantiq RCU block.
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible		: Should be one of
+				"lantiq,danube-reset"
+				"lantiq,xrx200-reset"
+- reg			: Defines the following sets of registers in the parent
+			  syscon device
+			- Offset of the reset set register
+			- Offset of the reset status register
+- #reset-cells		: Specifies the number of cells needed to encode the
+			  reset line, should be 2.
+			  The first cell takes the reset set bit and the
+			  second cell takes the status bit.
+
+-------------------------------------------------------------------------------
+Example for the reset-controllers on the xRX200 SoCs:
+	reset0: reset-controller@10 {
+		compatible = "lantiq,xrx200-reset";
+		reg <0x10 0x04>, <0x14 0x04>;
+
+		#reset-cells = <2>;
+	};
diff --git a/Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt b/Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt
new file mode 100644
index 000000000000..830069b1c37c
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt
@@ -0,0 +1,28 @@
+Binding for the Synopsys HSDK reset controller
+
+This binding uses the common reset binding[1].
+
+[1] Documentation/devicetree/bindings/reset/reset.txt
+
+Required properties:
+- compatible: should be "snps,hsdk-reset".
+- reg: should always contain 2 pairs address - length: first for reset
+  configuration register and second for corresponding SW reset and status bits
+  register.
+- #reset-cells: from common reset binding; Should always be set to 1.
+
+Example:
+	reset: reset@880 {
+		compatible = "snps,hsdk-reset";
+		#reset-cells = <1>;
+		reg = <0x8A0 0x4>, <0xFF0 0x4>;
+	};
+
+Specifying reset lines connected to IP modules:
+	ethernet@.... {
+		....
+		resets = <&reset HSDK_V1_ETH_RESET>;
+		....
+	};
+
+The index could be found in <dt-bindings/reset/snps,hsdk-reset.h>
diff --git a/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt b/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt
index e25a456664b9..0014da9145af 100644
--- a/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt
+++ b/Documentation/devicetree/bindings/rng/brcm,iproc-rng200.txt
@@ -1,7 +1,9 @@
 HWRNG support for the iproc-rng200 driver
 
 Required properties:
-- compatible : "brcm,iproc-rng200"
+- compatible : Must be one of:
+	       "brcm,bcm7278-rng200"
+	       "brcm,iproc-rng200"
 - reg : base address and size of control register block
 
 Example:
diff --git a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
index 3eca6de6369d..a65d7b71e81a 100644
--- a/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
+++ b/Documentation/devicetree/bindings/security/tpm/tpm-i2c.txt
@@ -8,6 +8,12 @@ Required properties:
                    the firmware event log
 - linux,sml-size : size of the memory allocated for the firmware event log
 
+Optional properties:
+
+- powered-while-suspended: present when the TPM is left powered on between
+                           suspend and resume (makes the suspend/resume
+                           callbacks do nothing).
+
 Example (for OpenPower Systems with Nuvoton TPM 2.0 on I2C)
 ----------------------------------------------------------
 
diff --git a/Documentation/devicetree/bindings/serial/atmel-usart.txt b/Documentation/devicetree/bindings/serial/atmel-usart.txt
index e6e6142e33ac..7c0d6b2f53e4 100644
--- a/Documentation/devicetree/bindings/serial/atmel-usart.txt
+++ b/Documentation/devicetree/bindings/serial/atmel-usart.txt
@@ -24,6 +24,7 @@ Optional properties:
 	- dma-names: "rx" for RX channel, "tx" for TX channel.
 - atmel,fifo-size: maximum number of data the RX and TX FIFOs can store for FIFO
   capable USARTs.
+- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
 
 <chip> compatible description:
 - at91rm9200:  legacy USART support
diff --git a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
index 574c3a2c77d5..860a9559839a 100644
--- a/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-imx-uart.txt
@@ -9,6 +9,7 @@ Optional properties:
 - fsl,irda-mode : Indicate the uart supports irda mode
 - fsl,dte-mode : Indicate the uart works in DTE mode. The uart works
                   in DCE mode by default.
+- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
 
 Please check Documentation/devicetree/bindings/serial/serial.txt
 for the complete list of generic properties.
diff --git a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
index a1252a047f78..59567b51cf09 100644
--- a/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
+++ b/Documentation/devicetree/bindings/serial/fsl-lpuart.txt
@@ -16,6 +16,7 @@ Required properties:
 Optional properties:
 - dmas: A list of two dma specifiers, one for each entry in dma-names.
 - dma-names: should contain "tx" and "rx".
+- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
 
 Note: Optional properties for DMA support. Write them both or both not.
 
diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt
index 7a71b5de77d6..43eac675f21f 100644
--- a/Documentation/devicetree/bindings/serial/omap_serial.txt
+++ b/Documentation/devicetree/bindings/serial/omap_serial.txt
@@ -19,6 +19,7 @@ Optional properties:
 - dmas : DMA specifier, consisting of a phandle to the DMA controller
          node and a DMA channel number.
 - dma-names : "rx" for receive channel, "tx" for transmit channel.
+- rs485-rts-delay, rs485-rx-during-tx, linux,rs485-enabled-at-boot-time: see rs485.txt
 
 Example:
 
diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
index 4fc96946f81d..cf504d0380ae 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
+++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
@@ -41,6 +41,8 @@ Required properties:
     - "renesas,hscif-r8a7795" for R8A7795 (R-Car H3) HSCIF compatible UART.
     - "renesas,scif-r8a7796" for R8A7796 (R-Car M3-W) SCIF compatible UART.
     - "renesas,hscif-r8a7796" for R8A7796 (R-Car M3-W) HSCIF compatible UART.
+    - "renesas,scif-r8a77970" for R8A77970 (R-Car V3M) SCIF compatible UART.
+    - "renesas,hscif-r8a77970" for R8A77970 (R-Car V3M) HSCIF compatible UART.
     - "renesas,scif-r8a77995" for R8A77995 (R-Car D3) SCIF compatible UART.
     - "renesas,hscif-r8a77995" for R8A77995 (R-Car D3) HSCIF compatible UART.
     - "renesas,scifa-sh73a0" for SH73A0 (SH-Mobile AG5) SCIFA compatible UART.
diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
index 3657f9f9d17a..d150b04a6229 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
+++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
@@ -2,14 +2,10 @@
 
 Required properties:
 - compatible: can be either:
-  - "st,stm32-usart",
   - "st,stm32-uart",
-  - "st,stm32f7-usart",
   - "st,stm32f7-uart",
-  - "st,stm32h7-usart"
   - "st,stm32h7-uart".
-  depending on whether the device supports synchronous mode
-  and is compatible with stm32(f4), stm32f7 or stm32h7.
+  depending is compatible with stm32(f4), stm32f7 or stm32h7.
 - reg: The address and length of the peripheral registers space
 - interrupts:
   - The interrupt line for the USART instance,
@@ -33,7 +29,7 @@ usart4: serial@40004c00 {
 };
 
 usart2: serial@40004400 {
-	compatible = "st,stm32-usart", "st,stm32-uart";
+	compatible = "st,stm32-uart";
 	reg = <0x40004400 0x400>;
 	interrupts = <38>;
 	clocks = <&clk_pclk1>;
@@ -43,7 +39,7 @@ usart2: serial@40004400 {
 };
 
 usart1: serial@40011000 {
-	compatible = "st,stm32-usart", "st,stm32-uart";
+	compatible = "st,stm32-uart";
 	reg = <0x40011000 0x400>;
 	interrupts = <37>;
 	clocks = <&rcc 0 164>;
diff --git a/Documentation/devicetree/bindings/spi/sh-msiof.txt b/Documentation/devicetree/bindings/spi/sh-msiof.txt
index e865855726a2..bdd83959019c 100644
--- a/Documentation/devicetree/bindings/spi/sh-msiof.txt
+++ b/Documentation/devicetree/bindings/spi/sh-msiof.txt
@@ -1,7 +1,9 @@
 Renesas MSIOF spi controller
 
 Required properties:
-- compatible           : "renesas,msiof-r8a7790" (R-Car H2)
+- compatible           : "renesas,msiof-r8a7743" (RZ/G1M)
+			 "renesas,msiof-r8a7745" (RZ/G1E)
+			 "renesas,msiof-r8a7790" (R-Car H2)
 			 "renesas,msiof-r8a7791" (R-Car M2-W)
 			 "renesas,msiof-r8a7792" (R-Car V2H)
 			 "renesas,msiof-r8a7793" (R-Car M2-N)
@@ -10,7 +12,7 @@ Required properties:
 			 "renesas,msiof-r8a7796" (R-Car M3-W)
 			 "renesas,msiof-sh73a0" (SH-Mobile AG5)
 			 "renesas,sh-mobile-msiof" (generic SH-Mobile compatibile device)
-			 "renesas,rcar-gen2-msiof" (generic R-Car Gen2 compatible device)
+			 "renesas,rcar-gen2-msiof" (generic R-Car Gen2 and RZ/G1 compatible device)
 			 "renesas,rcar-gen3-msiof" (generic R-Car Gen3 compatible device)
 			 "renesas,sh-msiof"      (deprecated)
 
diff --git a/Documentation/devicetree/bindings/spi/spi-davinci.txt b/Documentation/devicetree/bindings/spi/spi-davinci.txt
index f5916c92fe91..1925277bfc1e 100644
--- a/Documentation/devicetree/bindings/spi/spi-davinci.txt
+++ b/Documentation/devicetree/bindings/spi/spi-davinci.txt
@@ -24,6 +24,16 @@ Required properties:
 	based on a specific SoC configuration.
 - interrupts: interrupt number mapped to CPU.
 - clocks: spi clk phandle
+          For 66AK2G this property should be set per binding,
+          Documentation/devicetree/bindings/clock/ti,sci-clk.txt
+
+SoC-specific Required Properties:
+
+The following are mandatory properties for Keystone 2 66AK2G SoCs only:
+
+- power-domains:	Should contain a phandle to a PM domain provider node
+			and an args specifier containing the SPI device id
+			value. This property is as per the binding,
 
 Optional:
 - cs-gpios: gpio chip selects
diff --git a/Documentation/devicetree/bindings/spi/spi-rspi.txt b/Documentation/devicetree/bindings/spi/spi-rspi.txt
index 8f4169f63936..3b02b3a7cfb2 100644
--- a/Documentation/devicetree/bindings/spi/spi-rspi.txt
+++ b/Documentation/devicetree/bindings/spi/spi-rspi.txt
@@ -5,11 +5,14 @@ Required properties:
 		     "renesas,rspi-<soctype>", "renesas,rspi" as fallback.
 		     For Renesas Serial Peripheral Interface on RZ/A1H:
 		     "renesas,rspi-<soctype>", "renesas,rspi-rz" as fallback.
-		     For Quad Serial Peripheral Interface on R-Car Gen2:
+		     For Quad Serial Peripheral Interface on R-Car Gen2 and
+		     RZ/G1 devices:
 		     "renesas,qspi-<soctype>", "renesas,qspi" as fallback.
 		     Examples with soctypes are:
 		        - "renesas,rspi-sh7757" (SH)
 			- "renesas,rspi-r7s72100" (RZ/A1H)
+			- "renesas,qspi-r8a7743" (RZ/G1M)
+			- "renesas,qspi-r8a7745" (RZ/G1E)
 			- "renesas,qspi-r8a7790" (R-Car H2)
 			- "renesas,qspi-r8a7791" (R-Car M2-W)
 			- "renesas,qspi-r8a7792" (R-Car V2H)
diff --git a/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt b/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt
new file mode 100644
index 000000000000..8de589b376ce
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/spi-sprd-adi.txt
@@ -0,0 +1,58 @@
+Spreadtrum ADI controller
+
+ADI is the abbreviation of Anolog-Digital interface, which is used to access
+analog chip (such as PMIC) from digital chip. ADI controller follows the SPI
+framework for its hardware implementation is alike to SPI bus and its timing
+is compatile to SPI timing.
+
+ADI controller has 50 channels including 2 software read/write channels and
+48 hardware channels to access analog chip. For 2 software read/write channels,
+users should set ADI registers to access analog chip. For hardware channels,
+we can configure them to allow other hardware components to use it independently,
+which means we can just link one analog chip address to one hardware channel,
+then users can access the mapped analog chip address by this hardware channel
+triggered by hardware components instead of ADI software channels.
+
+Thus we introduce one property named "sprd,hw-channels" to configure hardware
+channels, the first value specifies the hardware channel id which is used to
+transfer data triggered by hardware automatically, and the second value specifies
+the analog chip address where user want to access by hardware components.
+
+Since we have multi-subsystems will use unique ADI to access analog chip, when
+one system is reading/writing data by ADI software channels, that should be under
+one hardware spinlock protection to prevent other systems from reading/writing
+data by ADI software channels at the same time, or two parallel routine of setting
+ADI registers will make ADI controller registers chaos to lead incorrect results.
+Then we need one hardware spinlock to synchronize between the multiple subsystems.
+
+Required properties:
+- compatible: Should be "sprd,sc9860-adi".
+- reg: Offset and length of ADI-SPI controller register space.
+- hwlocks: Reference to a phandle of a hwlock provider node.
+- hwlock-names: Reference to hwlock name strings defined in the same order
+	as the hwlocks, should be "adi".
+- #address-cells: Number of cells required to define a chip select address
+	on the ADI-SPI bus. Should be set to 1.
+- #size-cells: Size of cells required to define a chip select address size
+	on the ADI-SPI bus. Should be set to 0.
+
+Optional properties:
+- sprd,hw-channels: This is an array of channel values up to 49 channels.
+	The first value specifies the hardware channel id which is used to
+	transfer data triggered by hardware automatically, and the second
+	value specifies the analog chip address where user want to access
+	by hardware components.
+
+SPI slave nodes must be children of the SPI controller node and can contain
+properties described in Documentation/devicetree/bindings/spi/spi-bus.txt.
+
+Example:
+	adi_bus: spi@40030000 {
+		compatible = "sprd,sc9860-adi";
+		reg = <0 0x40030000 0 0x10000>;
+		hwlocks = <&hwlock1 0>;
+		hwlock-names = "adi";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		sprd,hw-channels = <30 0x8c20>;
+	};
diff --git a/Documentation/devicetree/bindings/timer/renesas,cmt.txt b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
index 6ca6b9e582a0..d740989eb569 100644
--- a/Documentation/devicetree/bindings/timer/renesas,cmt.txt
+++ b/Documentation/devicetree/bindings/timer/renesas,cmt.txt
@@ -20,16 +20,16 @@ Required Properties:
 		(CMT1 on sh73a0 and r8a7740)
 		This is a fallback for the above renesas,cmt-48-* entries.
 
-    - "renesas,cmt0-r8a73a4" for the 32-bit CMT0 device included in r8a73a4.
-    - "renesas,cmt1-r8a73a4" for the 48-bit CMT1 device included in r8a73a4.
-    - "renesas,cmt0-r8a7790" for the 32-bit CMT0 device included in r8a7790.
-    - "renesas,cmt1-r8a7790" for the 48-bit CMT1 device included in r8a7790.
-    - "renesas,cmt0-r8a7791" for the 32-bit CMT0 device included in r8a7791.
-    - "renesas,cmt1-r8a7791" for the 48-bit CMT1 device included in r8a7791.
-    - "renesas,cmt0-r8a7793" for the 32-bit CMT0 device included in r8a7793.
-    - "renesas,cmt1-r8a7793" for the 48-bit CMT1 device included in r8a7793.
-    - "renesas,cmt0-r8a7794" for the 32-bit CMT0 device included in r8a7794.
-    - "renesas,cmt1-r8a7794" for the 48-bit CMT1 device included in r8a7794.
+    - "renesas,r8a73a4-cmt0" for the 32-bit CMT0 device included in r8a73a4.
+    - "renesas,r8a73a4-cmt1" for the 48-bit CMT1 device included in r8a73a4.
+    - "renesas,r8a7790-cmt0" for the 32-bit CMT0 device included in r8a7790.
+    - "renesas,r8a7790-cmt1" for the 48-bit CMT1 device included in r8a7790.
+    - "renesas,r8a7791-cmt0" for the 32-bit CMT0 device included in r8a7791.
+    - "renesas,r8a7791-cmt1" for the 48-bit CMT1 device included in r8a7791.
+    - "renesas,r8a7793-cmt0" for the 32-bit CMT0 device included in r8a7793.
+    - "renesas,r8a7793-cmt1" for the 48-bit CMT1 device included in r8a7793.
+    - "renesas,r8a7794-cmt0" for the 32-bit CMT0 device included in r8a7794.
+    - "renesas,r8a7794-cmt1" for the 48-bit CMT1 device included in r8a7794.
 
     - "renesas,rcar-gen2-cmt0" for 32-bit CMT0 devices included in R-Car Gen2.
     - "renesas,rcar-gen2-cmt1" for 48-bit CMT1 devices included in R-Car Gen2.
@@ -46,7 +46,7 @@ Required Properties:
 Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes
 
 	cmt0: timer@ffca0000 {
-		compatible = "renesas,cmt0-r8a7790", "renesas,rcar-gen2-cmt0";
+		compatible = "renesas,r8a7790-cmt0", "renesas,rcar-gen2-cmt0";
 		reg = <0 0xffca0000 0 0x1004>;
 		interrupts = <0 142 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 142 IRQ_TYPE_LEVEL_HIGH>;
@@ -55,7 +55,7 @@ Example: R8A7790 (R-Car H2) CMT0 and CMT1 nodes
 	};
 
 	cmt1: timer@e6130000 {
-		compatible = "renesas,cmt1-r8a7790", "renesas,rcar-gen2-cmt1";
+		compatible = "renesas,r8a7790-cmt1", "renesas,rcar-gen2-cmt1";
 		reg = <0 0xe6130000 0 0x1004>;
 		interrupts = <0 120 IRQ_TYPE_LEVEL_HIGH>,
 			     <0 121 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/Documentation/devicetree/bindings/trivial-devices.txt b/Documentation/devicetree/bindings/trivial-devices.txt
index af284fbd4d23..8bcac6ee73da 100644
--- a/Documentation/devicetree/bindings/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/trivial-devices.txt
@@ -71,6 +71,7 @@ isil,isl29028		Intersil ISL29028 Ambient Light and Proximity Sensor
 isil,isl29030		Intersil ISL29030 Ambient Light and Proximity Sensor
 maxim,ds1050		5 Bit Programmable, Pulse-Width Modulator
 maxim,max1237		Low-Power, 4-/12-Channel, 2-Wire Serial, 12-Bit ADCs
+maxim,max6621		PECI-to-I2C translator for PECI-to-SMBus/I2C protocol conversion
 maxim,max6625		9-Bit/12-Bit Temperature Sensors with I²C-Compatible Serial Interface
 mc,rv3029c2		Real Time Clock Module with I2C-Bus
 mcube,mc3230		mCube 3-axis 8-bit digital accelerometer
diff --git a/Documentation/devicetree/bindings/usb/dwc2.txt b/Documentation/devicetree/bindings/usb/dwc2.txt
index fcf199b64d3d..e64d903bcbe8 100644
--- a/Documentation/devicetree/bindings/usb/dwc2.txt
+++ b/Documentation/devicetree/bindings/usb/dwc2.txt
@@ -19,6 +19,8 @@ Required properties:
   configured in FS mode;
   - "st,stm32f4x9-hsotg": The DWC2 USB HS controller instance in STM32F4x9 SoCs
   configured in HS mode;
+  - "st,stm32f7xx-hsotg": The DWC2 USB HS controller instance in STM32F7xx SoCs
+    configured in HS mode;
 - reg : Should contain 1 register range (address and length)
 - interrupts : Should contain 1 interrupt
 - clocks: clock provider specifier
diff --git a/Documentation/devicetree/bindings/usb/maxim,max3421.txt b/Documentation/devicetree/bindings/usb/maxim,max3421.txt
new file mode 100644
index 000000000000..8cdbe0c85188
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/maxim,max3421.txt
@@ -0,0 +1,26 @@
+Maxim Integrated SPI-based USB 2.0 host controller MAX3421E
+
+Required properties:
+ - compatible: Should be "maxim,max3421"
+ - spi-max-frequency: maximum frequency for this device must not exceed 26 MHz.
+ - reg: chip select number to which this device is connected.
+ - maxim,vbus-en-pin: <GPOUTx ACTIVE_LEVEL>
+   GPOUTx is the number (1-8) of the GPOUT pin of MAX3421E to drive Vbus.
+   ACTIVE_LEVEL is 0 or 1.
+ - interrupts: the interrupt line description for the interrupt controller.
+   The driver configures MAX3421E for active low level triggered interrupts,
+   configure your interrupt line accordingly.
+
+Optional property:
+ - interrupt-parent: the phandle to the associated interrupt controller.
+
+Example:
+
+	usb@0 {
+		compatible = "maxim,max3421";
+		reg = <0>;
+		maxim,vbus-en-pin = <3 1>;
+		spi-max-frequency = <26000000>;
+		interrupt-parent = <&PIC>;
+		interrupts = <42>;
+	};
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
index 5611a2e4ddf0..30595964876a 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.txt
@@ -26,10 +26,11 @@ Required properties:
  - clocks : a list of phandle + clock-specifier pairs, one for each
 	entry in clock-names
  - clock-names : must contain
-	"sys_ck": for clock of xHCI MAC
-	"ref_ck": for reference clock of xHCI MAC
-	"wakeup_deb_p0": for USB wakeup debounce clock of port0
-	"wakeup_deb_p1": for USB wakeup debounce clock of port1
+	"sys_ck": controller clock used by normal mode,
+	the following ones are optional:
+	"ref_ck": reference clock used by low power mode etc,
+	"mcu_ck": mcu_bus clock for register access,
+	"dma_ck": dma_bus clock for data transfer by DMA
 
  - phys : a list of phandle + phy specifier pairs
 
@@ -38,6 +39,8 @@ Optional properties:
 	mode;
  - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
 	control register, it depends on "mediatek,wakeup-src".
+ - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
+	bit1 for u3port1, ... etc;
  - vbus-supply : reference to the VBUS regulator;
  - usb3-lpm-capable : supports USB3.0 LPM
  - pinctrl-names : a pinctrl state named "default" must be defined
@@ -55,9 +58,7 @@ usb30: usb@11270000 {
 	clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
 		 <&pericfg CLK_PERI_USB0>,
 		 <&pericfg CLK_PERI_USB1>;
-	clock-names = "sys_ck", "ref_ck",
-		      "wakeup_deb_p0",
-		      "wakeup_deb_p1";
+	clock-names = "sys_ck", "ref_ck";
 	phys = <&phy_port0 PHY_TYPE_USB3>,
 	       <&phy_port1 PHY_TYPE_USB2>;
 	vusb33-supply = <&mt6397_vusb_reg>;
@@ -89,9 +90,8 @@ Required properties:
 
  - clocks : a list of phandle + clock-specifier pairs, one for each
 	entry in clock-names
- - clock-names : must be
-	"sys_ck": for clock of xHCI MAC
-	"ref_ck": for reference clock of xHCI MAC
+ - clock-names : must contain "sys_ck", and the following ones are optional:
+	"ref_ck", "mcu_ck" and "dma_ck"
 
 Optional properties:
  - vbus-supply : reference to the VBUS regulator;
diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
index 49f54767cd21..b2271d8e6b50 100644
--- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
+++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.txt
@@ -14,9 +14,9 @@ Required properties:
  - vusb33-supply : regulator of USB avdd3.3v
  - clocks : a list of phandle + clock-specifier pairs, one for each
 	entry in clock-names
- - clock-names : must contain "sys_ck" and "ref_ck" for clock of controller;
-	"wakeup_deb_p0" and "wakeup_deb_p1" are optional, they are
-	depends on "mediatek,enable-wakeup"
+ - clock-names : must contain "sys_ck" for clock of controller,
+	the following clocks are optional:
+	"ref_ck", "mcu_ck" and "dam_ck";
  - phys : a list of phandle + phy specifier pairs
  - dr_mode : should be one of "host", "peripheral" or "otg",
 	refer to usb/generic.txt
@@ -30,9 +30,10 @@ Optional properties:
 	when supports dual-role mode.
  - vbus-supply : reference to the VBUS regulator, needed when supports
 	dual-role mode.
- - pinctl-names : a pinctrl state named "default" must be defined,
-	"id_float" and "id_ground" are optinal which depends on
-	"mediatek,enable-manual-drd"
+ - pinctrl-names : a pinctrl state named "default" is optional, and need be
+	defined if auto drd switch is enabled, that means the property dr_mode
+	is set as "otg", and meanwhile the property "mediatek,enable-manual-drd"
+	is not set.
  - pinctrl-0 : pin control group
 	See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
 
@@ -44,6 +45,8 @@ Optional properties:
  - mediatek,enable-wakeup : supports ip sleep wakeup used by host mode
  - mediatek,syscon-wakeup : phandle to syscon used to access USB wakeup
 	control register, it depends on "mediatek,enable-wakeup".
+ - mediatek,u3p-dis-msk : mask to disable u3ports, bit0 for u3port0,
+	bit1 for u3port1, ... etc;
 
 Sub-nodes:
 The xhci should be added as subnode to mtu3 as shown in the following example
@@ -63,9 +66,7 @@ ssusb: usb@11271000 {
 	clocks = <&topckgen CLK_TOP_USB30_SEL>, <&clk26m>,
 		 <&pericfg CLK_PERI_USB0>,
 		 <&pericfg CLK_PERI_USB1>;
-	clock-names = "sys_ck", "ref_ck",
-		      "wakeup_deb_p0",
-		      "wakeup_deb_p1";
+	clock-names = "sys_ck", "ref_ck";
 	vusb33-supply = <&mt6397_vusb_reg>;
 	vbus-supply = <&usb_p0_vbus>;
 	extcon = <&extcon_usb>;
diff --git a/Documentation/devicetree/bindings/usb/renesas_usb3.txt b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
index e28025883b79..87a45e2f9b7f 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usb3.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usb3.txt
@@ -15,6 +15,10 @@ Required properties:
   - interrupts: Interrupt specifier for the USB3.0 Peripheral
   - clocks: clock phandle and specifier pair
 
+Optional properties:
+  - phys: phandle + phy specifier pair
+  - phy-names: must be "usb"
+
 Example of R-Car H3 ES1.x:
 	usb3_peri0: usb@ee020000 {
 		compatible = "renesas,r8a7795-usb3-peri",
diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
index 9e18e000339e..47394ab788e3 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
@@ -3,6 +3,8 @@ Renesas Electronics USBHS driver
 Required properties:
   - compatible: Must contain one or more of the following:
 
+	- "renesas,usbhs-r8a7743" for r8a7743 (RZ/G1M) compatible device
+	- "renesas,usbhs-r8a7745" for r8a7745 (RZ/G1E) compatible device
 	- "renesas,usbhs-r8a7790" for r8a7790 (R-Car H2) compatible device
 	- "renesas,usbhs-r8a7791" for r8a7791 (R-Car M2-W) compatible device
 	- "renesas,usbhs-r8a7792" for r8a7792 (R-Car V2H) compatible device
@@ -10,7 +12,8 @@ Required properties:
 	- "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device
 	- "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device
 	- "renesas,usbhs-r8a7796" for r8a7796 (R-Car M3-W) compatible device
-	- "renesas,rcar-gen2-usbhs" for R-Car Gen2 compatible device
+	- "renesas,usbhs-r8a77995" for r8a77995 (R-Car D3) compatible device
+	- "renesas,rcar-gen2-usbhs" for R-Car Gen2 or RZ/G1 compatible devices
 	- "renesas,rcar-gen3-usbhs" for R-Car Gen3 compatible device
 
 	When compatible with the generic version, nodes must list the
diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt
index 2d80b60eeabe..ae6e484a8d7c 100644
--- a/Documentation/devicetree/bindings/usb/usb-xhci.txt
+++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt
@@ -26,6 +26,7 @@ Required properties:
 
 Optional properties:
   - clocks: reference to a clock
+  - usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
   - usb3-lpm-capable: determines if platform is USB3 LPM capable
   - quirk-broken-port-ped: set if the controller has broken port disable mechanism
 
diff --git a/Documentation/devicetree/bindings/usb/usb251xb.txt b/Documentation/devicetree/bindings/usb/usb251xb.txt
index 3957d4edaa74..168ff819e827 100644
--- a/Documentation/devicetree/bindings/usb/usb251xb.txt
+++ b/Documentation/devicetree/bindings/usb/usb251xb.txt
@@ -1,16 +1,17 @@
 Microchip USB 2.0 Hi-Speed Hub Controller
 
-The device node for the configuration of a Microchip USB251xB/xBi USB 2.0
+The device node for the configuration of a Microchip USB251x/xBi USB 2.0
 Hi-Speed Controller.
 
 Required properties :
  - compatible : Should be "microchip,usb251xb" or one of the specific types:
 	"microchip,usb2512b", "microchip,usb2512bi", "microchip,usb2513b",
-	"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi"
- - reset-gpios : Should specify the gpio for hub reset
+	"microchip,usb2513bi", "microchip,usb2514b", "microchip,usb2514bi",
+	"microchip,usb2517", "microchip,usb2517i"
  - reg : I2C address on the selected bus (default is <0x2C>)
 
 Optional properties :
+ - reset-gpios : Should specify the gpio for hub reset
  - skip-config : Skip Hub configuration, but only send the USB-Attach command
  - vendor-id : Set USB Vendor ID of the hub (16 bit, default is 0x0424)
  - product-id : Set USB Product ID of the hub (16 bit, default depends on type)
@@ -19,29 +20,47 @@ Optional properties :
  - manufacturer : Set USB Manufacturer string (max 31 characters long)
  - product : Set USB Product string (max 31 characters long)
  - serial : Set USB Serial string (max 31 characters long)
- - {bus,self}-powered : selects between self- and bus-powered operation (default
-	is self-powered)
- - disable-hi-speed : disable USB Hi-Speed support
+ - {bus,self}-powered : selects between self- and bus-powered operation
+	(boolean, default is self-powered)
+ - disable-hi-speed : disable USB Hi-Speed support (boolean)
  - {multi,single}-tt : selects between multi- and single-transaction-translator
-	(default is multi-tt)
- - disable-eop : disable End of Packet generation in full-speed mode
+	(boolean, default is multi-tt)
+ - disable-eop : disable End of Packet generation in full-speed mode (boolean)
  - {ganged,individual}-sensing : select over-current sense type in self-powered
-	mode (default is individual)
+	mode (boolean, default is individual)
  - {ganged,individual}-port-switching : select port power switching mode
-	(default is individual)
+	(boolean, default is individual)
  - dynamic-power-switching : enable auto-switching from self- to bus-powered
-	operation if the local power source is removed or unavailable
+	operation if the local power source is removed or unavailable (boolean)
  - oc-delay-us : Delay time (in microseconds) for filtering the over-current
 	sense inputs. Valid values are 100, 4000, 8000 (default) and 16000. If
 	an invalid value is given, the default is used instead.
- - compound-device : indicate the hub is part of a compound device
- - port-mapping-mode : enable port mapping mode
+ - compound-device : indicate the hub is part of a compound device (boolean)
+ - port-mapping-mode : enable port mapping mode (boolean)
+ - led-{usb,speed}-mode : led usb/speed indication mode selection
+	(boolean, default is speed mode)
  - string-support : enable string descriptor support (required for manufacturer,
 	product and serial string configuration)
  - non-removable-ports : Should specify the ports which have a non-removable
 	device connected.
  - sp-disabled-ports : Specifies the ports which will be self-power disabled
  - bp-disabled-ports : Specifies the ports which will be bus-power disabled
+ - sp-max-total-current-microamp: Specifies max current consumed by the hub
+	from VBUS when operating in self-powered hub. It includes the hub
+	silicon along with all associated circuitry including a permanently
+	attached peripheral (range: 0 - 100000 uA, default 1000 uA)
+ - bp-max-total-current-microamp: Specifies max current consumed by the hub
+	from VBUS when operating in self-powered hub. It includes the hub
+	silicon along with all associated circuitry including a permanently
+	attached peripheral (range: 0 - 510000 uA, default 100000 uA)
+ - sp-max-removable-current-microamp: Specifies max current consumed by the hub
+	from VBUS when operating in self-powered hub. It includes the hub
+	silicon along with all associated circuitry excluding a permanently
+	attached peripheral (range: 0 - 100000 uA, default 1000 uA)
+ - bp-max-removable-current-microamp: Specifies max current consumed by the hub
+	from VBUS when operating in self-powered hub. It includes the hub
+	silicon along with all associated circuitry excluding a permanently
+	attached peripheral (range: 0 - 510000 uA, default 100000 uA)
  - power-on-time-ms : Specifies the time it takes from the time the host
 	initiates the power-on sequence to a port until the port has adequate
 	power. The value is given in ms in a 0 - 510 range (default is 100ms).
@@ -56,7 +75,6 @@ Examples:
 	usb2514b@2c {
 		compatible = "microchip,usb2514b";
 		reg = <0x2c>;
-		reset-gpios = <&gpio1 4 GPIO_ACTIVE_LOW>;
 		vendor-id = /bits/ 16 <0x0000>;
 		product-id = /bits/ 16 <0x0000>;
 		string-support;
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 69183f0fbc78..b1eeca851d6f 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -3,8 +3,8 @@ Device tree binding vendor prefix registry.  Keep list in alphabetical order.
 This isn't an exhaustive list, but you should add new prefixes to it before
 using them to avoid name-space collisions.
 
-abcn	Abracon Corporation
 abilis	Abilis Systems
+abracon	Abracon Corporation
 actions	Actions Semiconductor Co., Ltd.
 active-semi	Active-Semi International Inc
 ad	Avionic Design GmbH
@@ -246,6 +246,7 @@ onion	Onion Corporation
 onnn	ON Semiconductor Corp.
 ontat	On Tat Industrial Company
 opencores	OpenCores.org
+openrisc	OpenRISC.io
 option	Option NV
 ORCL	Oracle Corporation
 ortustech	Ortus Technology Co., Ltd.
@@ -361,6 +362,7 @@ variscite	Variscite Ltd.
 via	VIA Technologies, Inc.
 virtio	Virtual I/O Device Specification, developed by the OASIS consortium
 vivante	Vivante Corporation
+vocore VoCore Studio
 voipac	Voipac Technologies s.r.o.
 wd	Western Digital Corp.
 wetek	WeTek Electronics, limited.
diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
index c5e74d7b4406..c5077a1f5cb3 100644
--- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt
@@ -8,9 +8,49 @@ Required properties:
  - reg: physical base address of the controller and length of memory mapped
    region
 
+Optional properties:
+
+ - aspeed,reset-type = "cpu|soc|system|none"
+
+   Reset behavior - Whenever a timeout occurs the watchdog can be programmed
+   to generate one of three different, mutually exclusive, types of resets.
+
+   Type "none" can be specified to indicate that no resets are to be done.
+   This is useful in situations where another watchdog engine on chip is
+   to perform the reset.
+
+   If 'aspeed,reset-type=' is not specfied the default is to enable system
+   reset.
+
+   Reset types:
+
+        - cpu: Reset CPU on watchdog timeout
+
+        - soc: Reset 'System on Chip' on watchdog timeout
+
+        - system: Reset system on watchdog timeout
+
+        - none: No reset is performed on timeout. Assumes another watchdog
+                engine is responsible for this.
+
+ - aspeed,alt-boot:    If property is present then boot from alternate block.
+ - aspeed,external-signal: If property is present then signal is sent to
+			external reset counter (only WDT1 and WDT2). If not
+			specified no external signal is sent.
+ - aspeed,ext-pulse-duration: External signal pulse duration in microseconds
+
+Optional properties for AST2500-compatible watchdogs:
+ - aspeed,ext-push-pull: If aspeed,external-signal is present, set the pin's
+			 drive type to push-pull. The default is open-drain.
+ - aspeed,ext-active-high: If aspeed,external-signal is present and and the pin
+			   is configured as push-pull, then set the pulse
+			   polarity to active-high. The default is active-low.
+
 Example:
 
 	wdt1: watchdog@1e785000 {
 		compatible = "aspeed,ast2400-wdt";
 		reg = <0x1e785000 0x1c>;
+		aspeed,reset-type = "system";
+		aspeed,external-signal;
 	};
diff --git a/Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt b/Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt
new file mode 100644
index 000000000000..18d4d8302702
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/lantiq-wdt.txt
@@ -0,0 +1,24 @@
+Lantiq WTD watchdog binding
+============================
+
+This describes the binding of the Lantiq watchdog driver.
+
+-------------------------------------------------------------------------------
+Required properties:
+- compatible		: Should be one of
+				"lantiq,wdt"
+				"lantiq,xrx100-wdt"
+				"lantiq,xrx200-wdt", "lantiq,xrx100-wdt"
+				"lantiq,falcon-wdt"
+- reg			: Address of the watchdog block
+- lantiq,rcu		: A phandle to the RCU syscon (required for
+			  "lantiq,falcon-wdt" and "lantiq,xrx100-wdt")
+
+-------------------------------------------------------------------------------
+Example for the watchdog on the xRX200 SoCs:
+		watchdog@803f0 {
+			compatible = "lantiq,xrx200-wdt", "lantiq,xrx100-wdt";
+			reg = <0x803f0 0x10>;
+
+			lantiq,rcu = <&rcu0>;
+		};
diff --git a/Documentation/devicetree/bindings/watchdog/meson-wdt.txt b/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
index ae70185d96e6..8a6d84cb36c9 100644
--- a/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/meson-wdt.txt
@@ -2,7 +2,11 @@ Meson SoCs Watchdog timer
 
 Required properties:
 
-- compatible : should be "amlogic,meson6-wdt" or "amlogic,meson8b-wdt"
+- compatible : depending on the SoC this should be one of:
+	"amlogic,meson6-wdt" on Meson6 SoCs
+	"amlogic,meson8-wdt" and "amlogic,meson6-wdt" on Meson8 SoCs
+	"amlogic,meson8b-wdt" on Meson8b SoCs
+	"amlogic,meson8m2-wdt" and "amlogic,meson8b-wdt" on Meson8m2 SoCs
 - reg : Specifies base physical address and size of the registers.
 
 Example:
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index 20ada673ab0c..235de0683bb6 100644
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -6,6 +6,8 @@ Required properties:
 	"mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
 	"mediatek,mt6589-wdt": for MT6589
 	"mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
+	"mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
+	"mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
 
 - reg : Specifies base physical address and size of the registers.
 
diff --git a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
index 9e306afbbd49..bf6d1ca58af7 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/renesas-wdt.txt
@@ -6,6 +6,7 @@ Required properties:
 	       Examples with soctypes are:
 	         - "renesas,r8a7795-wdt" (R-Car H3)
 	         - "renesas,r8a7796-wdt" (R-Car M3-W)
+	         - "renesas,r8a77995-wdt" (R-Car D3)
 	         - "renesas,r7s72100-wdt" (RZ/A1)
 
   When compatible with the generic version, nodes must list the SoC-specific
diff --git a/Documentation/dmaengine/00-INDEX b/Documentation/dmaengine/00-INDEX
deleted file mode 100644
index 07de6573d22b..000000000000
--- a/Documentation/dmaengine/00-INDEX
+++ /dev/null
@@ -1,8 +0,0 @@
-00-INDEX
-	- this file.
-client.txt
-	-the DMA Engine API Guide.
-dmatest.txt
-	- how to compile, configure and use the dmatest system.
-provider.txt
-	- the DMA controller API.
\ No newline at end of file
diff --git a/Documentation/dmaengine/client.txt b/Documentation/dmaengine/client.txt
deleted file mode 100644
index c72b4563de10..000000000000
--- a/Documentation/dmaengine/client.txt
+++ /dev/null
@@ -1,222 +0,0 @@
-			DMA Engine API Guide
-			====================
-
-		 Vinod Koul <vinod dot koul at intel.com>
-
-NOTE: For DMA Engine usage in async_tx please see:
-	Documentation/crypto/async-tx-api.txt
-
-
-Below is a guide to device driver writers on how to use the Slave-DMA API of the
-DMA Engine. This is applicable only for slave DMA usage only.
-
-The slave DMA usage consists of following steps:
-1. Allocate a DMA slave channel
-2. Set slave and controller specific parameters
-3. Get a descriptor for transaction
-4. Submit the transaction
-5. Issue pending requests and wait for callback notification
-
-1. Allocate a DMA slave channel
-
-   Channel allocation is slightly different in the slave DMA context,
-   client drivers typically need a channel from a particular DMA
-   controller only and even in some cases a specific channel is desired.
-   To request a channel dma_request_chan() API is used.
-
-   Interface:
-	struct dma_chan *dma_request_chan(struct device *dev, const char *name);
-
-   Which will find and return the 'name' DMA channel associated with the 'dev'
-   device. The association is done via DT, ACPI or board file based
-   dma_slave_map matching table.
-
-   A channel allocated via this interface is exclusive to the caller,
-   until dma_release_channel() is called.
-
-2. Set slave and controller specific parameters
-
-   Next step is always to pass some specific information to the DMA
-   driver. Most of the generic information which a slave DMA can use
-   is in struct dma_slave_config. This allows the clients to specify
-   DMA direction, DMA addresses, bus widths, DMA burst lengths etc
-   for the peripheral.
-
-   If some DMA controllers have more parameters to be sent then they
-   should try to embed struct dma_slave_config in their controller
-   specific structure. That gives flexibility to client to pass more
-   parameters, if required.
-
-   Interface:
-	int dmaengine_slave_config(struct dma_chan *chan,
-				  struct dma_slave_config *config)
-
-   Please see the dma_slave_config structure definition in dmaengine.h
-   for a detailed explanation of the struct members. Please note
-   that the 'direction' member will be going away as it duplicates the
-   direction given in the prepare call.
-
-3. Get a descriptor for transaction
-
-   For slave usage the various modes of slave transfers supported by the
-   DMA-engine are:
-
-   slave_sg	- DMA a list of scatter gather buffers from/to a peripheral
-   dma_cyclic	- Perform a cyclic DMA operation from/to a peripheral till the
-		  operation is explicitly stopped.
-   interleaved_dma - This is common to Slave as well as M2M clients. For slave
-		 address of devices' fifo could be already known to the driver.
-		 Various types of operations could be expressed by setting
-		 appropriate values to the 'dma_interleaved_template' members.
-
-   A non-NULL return of this transfer API represents a "descriptor" for
-   the given transaction.
-
-   Interface:
-	struct dma_async_tx_descriptor *dmaengine_prep_slave_sg(
-		struct dma_chan *chan, struct scatterlist *sgl,
-		unsigned int sg_len, enum dma_data_direction direction,
-		unsigned long flags);
-
-	struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
-		struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
-		size_t period_len, enum dma_data_direction direction);
-
-	struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
-		struct dma_chan *chan, struct dma_interleaved_template *xt,
-		unsigned long flags);
-
-   The peripheral driver is expected to have mapped the scatterlist for
-   the DMA operation prior to calling dmaengine_prep_slave_sg(), and must
-   keep the scatterlist mapped until the DMA operation has completed.
-   The scatterlist must be mapped using the DMA struct device.
-   If a mapping needs to be synchronized later, dma_sync_*_for_*() must be
-   called using the DMA struct device, too.
-   So, normal setup should look like this:
-
-	nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len);
-	if (nr_sg == 0)
-		/* error */
-
-	desc = dmaengine_prep_slave_sg(chan, sgl, nr_sg, direction, flags);
-
-   Once a descriptor has been obtained, the callback information can be
-   added and the descriptor must then be submitted. Some DMA engine
-   drivers may hold a spinlock between a successful preparation and
-   submission so it is important that these two operations are closely
-   paired.
-
-   Note:
-	Although the async_tx API specifies that completion callback
-	routines cannot submit any new operations, this is not the
-	case for slave/cyclic DMA.
-
-	For slave DMA, the subsequent transaction may not be available
-	for submission prior to callback function being invoked, so
-	slave DMA callbacks are permitted to prepare and submit a new
-	transaction.
-
-	For cyclic DMA, a callback function may wish to terminate the
-	DMA via dmaengine_terminate_async().
-
-	Therefore, it is important that DMA engine drivers drop any
-	locks before calling the callback function which may cause a
-	deadlock.
-
-	Note that callbacks will always be invoked from the DMA
-	engines tasklet, never from interrupt context.
-
-4. Submit the transaction
-
-   Once the descriptor has been prepared and the callback information
-   added, it must be placed on the DMA engine drivers pending queue.
-
-   Interface:
-	dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc)
-
-   This returns a cookie can be used to check the progress of DMA engine
-   activity via other DMA engine calls not covered in this document.
-
-   dmaengine_submit() will not start the DMA operation, it merely adds
-   it to the pending queue. For this, see step 5, dma_async_issue_pending.
-
-5. Issue pending DMA requests and wait for callback notification
-
-   The transactions in the pending queue can be activated by calling the
-   issue_pending API. If channel is idle then the first transaction in
-   queue is started and subsequent ones queued up.
-
-   On completion of each DMA operation, the next in queue is started and
-   a tasklet triggered. The tasklet will then call the client driver
-   completion callback routine for notification, if set.
-
-   Interface:
-	void dma_async_issue_pending(struct dma_chan *chan);
-
-Further APIs:
-
-1. int dmaengine_terminate_sync(struct dma_chan *chan)
-   int dmaengine_terminate_async(struct dma_chan *chan)
-   int dmaengine_terminate_all(struct dma_chan *chan) /* DEPRECATED */
-
-   This causes all activity for the DMA channel to be stopped, and may
-   discard data in the DMA FIFO which hasn't been fully transferred.
-   No callback functions will be called for any incomplete transfers.
-
-   Two variants of this function are available.
-
-   dmaengine_terminate_async() might not wait until the DMA has been fully
-   stopped or until any running complete callbacks have finished. But it is
-   possible to call dmaengine_terminate_async() from atomic context or from
-   within a complete callback. dmaengine_synchronize() must be called before it
-   is safe to free the memory accessed by the DMA transfer or free resources
-   accessed from within the complete callback.
-
-   dmaengine_terminate_sync() will wait for the transfer and any running
-   complete callbacks to finish before it returns. But the function must not be
-   called from atomic context or from within a complete callback.
-
-   dmaengine_terminate_all() is deprecated and should not be used in new code.
-
-2. int dmaengine_pause(struct dma_chan *chan)
-
-   This pauses activity on the DMA channel without data loss.
-
-3. int dmaengine_resume(struct dma_chan *chan)
-
-   Resume a previously paused DMA channel. It is invalid to resume a
-   channel which is not currently paused.
-
-4. enum dma_status dma_async_is_tx_complete(struct dma_chan *chan,
-        dma_cookie_t cookie, dma_cookie_t *last, dma_cookie_t *used)
-
-   This can be used to check the status of the channel. Please see
-   the documentation in include/linux/dmaengine.h for a more complete
-   description of this API.
-
-   This can be used in conjunction with dma_async_is_complete() and
-   the cookie returned from dmaengine_submit() to check for
-   completion of a specific DMA transaction.
-
-   Note:
-	Not all DMA engine drivers can return reliable information for
-	a running DMA channel. It is recommended that DMA engine users
-	pause or stop (via dmaengine_terminate_all()) the channel before
-	using this API.
-
-5. void dmaengine_synchronize(struct dma_chan *chan)
-
-  Synchronize the termination of the DMA channel to the current context.
-
-  This function should be used after dmaengine_terminate_async() to synchronize
-  the termination of the DMA channel to the current context. The function will
-  wait for the transfer and any running complete callbacks to finish before it
-  returns.
-
-  If dmaengine_terminate_async() is used to stop the DMA channel this function
-  must be called before it is safe to free memory accessed by previously
-  submitted descriptors or to free any resources accessed within the complete
-  callback of previously submitted descriptors.
-
-  The behavior of this function is undefined if dma_async_issue_pending() has
-  been called between dmaengine_terminate_async() and this function.
diff --git a/Documentation/dmaengine/provider.txt b/Documentation/dmaengine/provider.txt
deleted file mode 100644
index 5dbe054a40ad..000000000000
--- a/Documentation/dmaengine/provider.txt
+++ /dev/null
@@ -1,424 +0,0 @@
-DMAengine controller documentation
-==================================
-
-Hardware Introduction
-+++++++++++++++++++++
-
-Most of the Slave DMA controllers have the same general principles of
-operations.
-
-They have a given number of channels to use for the DMA transfers, and
-a given number of requests lines.
-
-Requests and channels are pretty much orthogonal. Channels can be used
-to serve several to any requests. To simplify, channels are the
-entities that will be doing the copy, and requests what endpoints are
-involved.
-
-The request lines actually correspond to physical lines going from the
-DMA-eligible devices to the controller itself. Whenever the device
-will want to start a transfer, it will assert a DMA request (DRQ) by
-asserting that request line.
-
-A very simple DMA controller would only take into account a single
-parameter: the transfer size. At each clock cycle, it would transfer a
-byte of data from one buffer to another, until the transfer size has
-been reached.
-
-That wouldn't work well in the real world, since slave devices might
-require a specific number of bits to be transferred in a single
-cycle. For example, we may want to transfer as much data as the
-physical bus allows to maximize performances when doing a simple
-memory copy operation, but our audio device could have a narrower FIFO
-that requires data to be written exactly 16 or 24 bits at a time. This
-is why most if not all of the DMA controllers can adjust this, using a
-parameter called the transfer width.
-
-Moreover, some DMA controllers, whenever the RAM is used as a source
-or destination, can group the reads or writes in memory into a buffer,
-so instead of having a lot of small memory accesses, which is not
-really efficient, you'll get several bigger transfers. This is done
-using a parameter called the burst size, that defines how many single
-reads/writes it's allowed to do without the controller splitting the
-transfer into smaller sub-transfers.
-
-Our theoretical DMA controller would then only be able to do transfers
-that involve a single contiguous block of data. However, some of the
-transfers we usually have are not, and want to copy data from
-non-contiguous buffers to a contiguous buffer, which is called
-scatter-gather.
-
-DMAEngine, at least for mem2dev transfers, require support for
-scatter-gather. So we're left with two cases here: either we have a
-quite simple DMA controller that doesn't support it, and we'll have to
-implement it in software, or we have a more advanced DMA controller,
-that implements in hardware scatter-gather.
-
-The latter are usually programmed using a collection of chunks to
-transfer, and whenever the transfer is started, the controller will go
-over that collection, doing whatever we programmed there.
-
-This collection is usually either a table or a linked list. You will
-then push either the address of the table and its number of elements,
-or the first item of the list to one channel of the DMA controller,
-and whenever a DRQ will be asserted, it will go through the collection
-to know where to fetch the data from.
-
-Either way, the format of this collection is completely dependent on
-your hardware. Each DMA controller will require a different structure,
-but all of them will require, for every chunk, at least the source and
-destination addresses, whether it should increment these addresses or
-not and the three parameters we saw earlier: the burst size, the
-transfer width and the transfer size.
-
-The one last thing is that usually, slave devices won't issue DRQ by
-default, and you have to enable this in your slave device driver first
-whenever you're willing to use DMA.
-
-These were just the general memory-to-memory (also called mem2mem) or
-memory-to-device (mem2dev) kind of transfers. Most devices often
-support other kind of transfers or memory operations that dmaengine
-support and will be detailed later in this document.
-
-DMA Support in Linux
-++++++++++++++++++++
-
-Historically, DMA controller drivers have been implemented using the
-async TX API, to offload operations such as memory copy, XOR,
-cryptography, etc., basically any memory to memory operation.
-
-Over time, the need for memory to device transfers arose, and
-dmaengine was extended. Nowadays, the async TX API is written as a
-layer on top of dmaengine, and acts as a client. Still, dmaengine
-accommodates that API in some cases, and made some design choices to
-ensure that it stayed compatible.
-
-For more information on the Async TX API, please look the relevant
-documentation file in Documentation/crypto/async-tx-api.txt.
-
-DMAEngine Registration
-++++++++++++++++++++++
-
-struct dma_device Initialization
---------------------------------
-
-Just like any other kernel framework, the whole DMAEngine registration
-relies on the driver filling a structure and registering against the
-framework. In our case, that structure is dma_device.
-
-The first thing you need to do in your driver is to allocate this
-structure. Any of the usual memory allocators will do, but you'll also
-need to initialize a few fields in there:
-
-  * channels:	should be initialized as a list using the
-		INIT_LIST_HEAD macro for example
-
-  * src_addr_widths:
-    - should contain a bitmask of the supported source transfer width
-
-  * dst_addr_widths:
-    - should contain a bitmask of the supported destination transfer
-      width
-
-  * directions:
-    - should contain a bitmask of the supported slave directions
-      (i.e. excluding mem2mem transfers)
-
-  * residue_granularity:
-    - Granularity of the transfer residue reported to dma_set_residue.
-    - This can be either:
-      + Descriptor
-        -> Your device doesn't support any kind of residue
-           reporting. The framework will only know that a particular
-           transaction descriptor is done.
-      + Segment
-        -> Your device is able to report which chunks have been
-           transferred
-      + Burst
-        -> Your device is able to report which burst have been
-           transferred
-
-  * dev: 	should hold the pointer to the struct device associated
-		to your current driver instance.
-
-Supported transaction types
----------------------------
-
-The next thing you need is to set which transaction types your device
-(and driver) supports.
-
-Our dma_device structure has a field called cap_mask that holds the
-various types of transaction supported, and you need to modify this
-mask using the dma_cap_set function, with various flags depending on
-transaction types you support as an argument.
-
-All those capabilities are defined in the dma_transaction_type enum,
-in include/linux/dmaengine.h
-
-Currently, the types available are:
-  * DMA_MEMCPY
-    - The device is able to do memory to memory copies
-
-  * DMA_XOR
-    - The device is able to perform XOR operations on memory areas
-    - Used to accelerate XOR intensive tasks, such as RAID5
-
-  * DMA_XOR_VAL
-    - The device is able to perform parity check using the XOR
-      algorithm against a memory buffer.
-
-  * DMA_PQ
-    - The device is able to perform RAID6 P+Q computations, P being a
-      simple XOR, and Q being a Reed-Solomon algorithm.
-
-  * DMA_PQ_VAL
-    - The device is able to perform parity check using RAID6 P+Q
-      algorithm against a memory buffer.
-
-  * DMA_INTERRUPT
-    - The device is able to trigger a dummy transfer that will
-      generate periodic interrupts
-    - Used by the client drivers to register a callback that will be
-      called on a regular basis through the DMA controller interrupt
-
-  * DMA_PRIVATE
-    - The devices only supports slave transfers, and as such isn't
-      available for async transfers.
-
-  * DMA_ASYNC_TX
-    - Must not be set by the device, and will be set by the framework
-      if needed
-    - /* TODO: What is it about? */
-
-  * DMA_SLAVE
-    - The device can handle device to memory transfers, including
-      scatter-gather transfers.
-    - While in the mem2mem case we were having two distinct types to
-      deal with a single chunk to copy or a collection of them, here,
-      we just have a single transaction type that is supposed to
-      handle both.
-    - If you want to transfer a single contiguous memory buffer,
-      simply build a scatter list with only one item.
-
-  * DMA_CYCLIC
-    - The device can handle cyclic transfers.
-    - A cyclic transfer is a transfer where the chunk collection will
-      loop over itself, with the last item pointing to the first.
-    - It's usually used for audio transfers, where you want to operate
-      on a single ring buffer that you will fill with your audio data.
-
-  * DMA_INTERLEAVE
-    - The device supports interleaved transfer.
-    - These transfers can transfer data from a non-contiguous buffer
-      to a non-contiguous buffer, opposed to DMA_SLAVE that can
-      transfer data from a non-contiguous data set to a continuous
-      destination buffer.
-    - It's usually used for 2d content transfers, in which case you
-      want to transfer a portion of uncompressed data directly to the
-      display to print it
-
-These various types will also affect how the source and destination
-addresses change over time.
-
-Addresses pointing to RAM are typically incremented (or decremented)
-after each transfer. In case of a ring buffer, they may loop
-(DMA_CYCLIC). Addresses pointing to a device's register (e.g. a FIFO)
-are typically fixed.
-
-Device operations
------------------
-
-Our dma_device structure also requires a few function pointers in
-order to implement the actual logic, now that we described what
-operations we were able to perform.
-
-The functions that we have to fill in there, and hence have to
-implement, obviously depend on the transaction types you reported as
-supported.
-
-   * device_alloc_chan_resources
-   * device_free_chan_resources
-     - These functions will be called whenever a driver will call
-       dma_request_channel or dma_release_channel for the first/last
-       time on the channel associated to that driver.
-     - They are in charge of allocating/freeing all the needed
-       resources in order for that channel to be useful for your
-       driver.
-     - These functions can sleep.
-
-   * device_prep_dma_*
-     - These functions are matching the capabilities you registered
-       previously.
-     - These functions all take the buffer or the scatterlist relevant
-       for the transfer being prepared, and should create a hardware
-       descriptor or a list of hardware descriptors from it
-     - These functions can be called from an interrupt context
-     - Any allocation you might do should be using the GFP_NOWAIT
-       flag, in order not to potentially sleep, but without depleting
-       the emergency pool either.
-     - Drivers should try to pre-allocate any memory they might need
-       during the transfer setup at probe time to avoid putting to
-       much pressure on the nowait allocator.
-
-     - It should return a unique instance of the
-       dma_async_tx_descriptor structure, that further represents this
-       particular transfer.
-
-     - This structure can be initialized using the function
-       dma_async_tx_descriptor_init.
-     - You'll also need to set two fields in this structure:
-       + flags:
-		TODO: Can it be modified by the driver itself, or
-		should it be always the flags passed in the arguments
-
-       + tx_submit:	A pointer to a function you have to implement,
-			that is supposed to push the current
-			transaction descriptor to a pending queue, waiting
-			for issue_pending to be called.
-     - In this structure the function pointer callback_result can be
-       initialized in order for the submitter to be notified that a
-       transaction has completed. In the earlier code the function pointer
-       callback has been used. However it does not provide any status to the
-       transaction and will be deprecated. The result structure defined as
-       dmaengine_result that is passed in to callback_result has two fields:
-       + result: This provides the transfer result defined by
-		 dmaengine_tx_result. Either success or some error
-		 condition.
-       + residue: Provides the residue bytes of the transfer for those that
-		  support residue.
-
-   * device_issue_pending
-     - Takes the first transaction descriptor in the pending queue,
-       and starts the transfer. Whenever that transfer is done, it
-       should move to the next transaction in the list.
-     - This function can be called in an interrupt context
-
-   * device_tx_status
-     - Should report the bytes left to go over on the given channel
-     - Should only care about the transaction descriptor passed as
-       argument, not the currently active one on a given channel
-     - The tx_state argument might be NULL
-     - Should use dma_set_residue to report it
-     - In the case of a cyclic transfer, it should only take into
-       account the current period.
-     - This function can be called in an interrupt context.
-
-   * device_config
-     - Reconfigures the channel with the configuration given as
-       argument
-     - This command should NOT perform synchronously, or on any
-       currently queued transfers, but only on subsequent ones
-     - In this case, the function will receive a dma_slave_config
-       structure pointer as an argument, that will detail which
-       configuration to use.
-     - Even though that structure contains a direction field, this
-       field is deprecated in favor of the direction argument given to
-       the prep_* functions
-     - This call is mandatory for slave operations only. This should NOT be
-       set or expected to be set for memcpy operations.
-       If a driver support both, it should use this call for slave
-       operations only and not for memcpy ones.
-
-   * device_pause
-     - Pauses a transfer on the channel
-     - This command should operate synchronously on the channel,
-       pausing right away the work of the given channel
-
-   * device_resume
-     - Resumes a transfer on the channel
-     - This command should operate synchronously on the channel,
-       resuming right away the work of the given channel
-
-   * device_terminate_all
-     - Aborts all the pending and ongoing transfers on the channel
-     - For aborted transfers the complete callback should not be called
-     - Can be called from atomic context or from within a complete
-       callback of a descriptor. Must not sleep. Drivers must be able
-       to handle this correctly.
-     - Termination may be asynchronous. The driver does not have to
-       wait until the currently active transfer has completely stopped.
-       See device_synchronize.
-
-   * device_synchronize
-     - Must synchronize the termination of a channel to the current
-       context.
-     - Must make sure that memory for previously submitted
-       descriptors is no longer accessed by the DMA controller.
-     - Must make sure that all complete callbacks for previously
-       submitted descriptors have finished running and none are
-       scheduled to run.
-     - May sleep.
-
-
-Misc notes (stuff that should be documented, but don't really know
-where to put them)
-------------------------------------------------------------------
-  * dma_run_dependencies
-    - Should be called at the end of an async TX transfer, and can be
-      ignored in the slave transfers case.
-    - Makes sure that dependent operations are run before marking it
-      as complete.
-
-  * dma_cookie_t
-    - it's a DMA transaction ID that will increment over time.
-    - Not really relevant any more since the introduction of virt-dma
-      that abstracts it away.
-
-  * DMA_CTRL_ACK
-    - If clear, the descriptor cannot be reused by provider until the
-      client acknowledges receipt, i.e. has has a chance to establish any
-      dependency chains
-    - This can be acked by invoking async_tx_ack()
-    - If set, does not mean descriptor can be reused
-
-  * DMA_CTRL_REUSE
-    - If set, the descriptor can be reused after being completed. It should
-      not be freed by provider if this flag is set.
-    - The descriptor should be prepared for reuse by invoking
-      dmaengine_desc_set_reuse() which will set DMA_CTRL_REUSE.
-    - dmaengine_desc_set_reuse() will succeed only when channel support
-      reusable descriptor as exhibited by capabilities
-    - As a consequence, if a device driver wants to skip the dma_map_sg() and
-      dma_unmap_sg() in between 2 transfers, because the DMA'd data wasn't used,
-      it can resubmit the transfer right after its completion.
-    - Descriptor can be freed in few ways
-	- Clearing DMA_CTRL_REUSE by invoking dmaengine_desc_clear_reuse()
-	  and submitting for last txn
-	- Explicitly invoking dmaengine_desc_free(), this can succeed only
-	  when DMA_CTRL_REUSE is already set
-	- Terminating the channel
-
-  * DMA_PREP_CMD
-    - If set, the client driver tells DMA controller that passed data in DMA
-      API is command data.
-    - Interpretation of command data is DMA controller specific. It can be
-      used for issuing commands to other peripherals/register reads/register
-      writes for which the descriptor should be in different format from
-      normal data descriptors.
-
-General Design Notes
---------------------
-
-Most of the DMAEngine drivers you'll see are based on a similar design
-that handles the end of transfer interrupts in the handler, but defer
-most work to a tasklet, including the start of a new transfer whenever
-the previous transfer ended.
-
-This is a rather inefficient design though, because the inter-transfer
-latency will be not only the interrupt latency, but also the
-scheduling latency of the tasklet, which will leave the channel idle
-in between, which will slow down the global transfer rate.
-
-You should avoid this kind of practice, and instead of electing a new
-transfer in your tasklet, move that part to the interrupt handler in
-order to have a shorter idle window (that we can't really avoid
-anyway).
-
-Glossary
---------
-
-Burst: 		A number of consecutive read or write operations
-		that can be queued to buffers before being flushed to
-		memory.
-Chunk:		A contiguous collection of bursts
-Transfer:	A collection of chunks (be it contiguous or not)
diff --git a/Documentation/dmaengine/pxa_dma.txt b/Documentation/dmaengine/pxa_dma.txt
deleted file mode 100644
index 0736d44b5438..000000000000
--- a/Documentation/dmaengine/pxa_dma.txt
+++ /dev/null
@@ -1,153 +0,0 @@
-PXA/MMP - DMA Slave controller
-==============================
-
-Constraints
------------
-  a) Transfers hot queuing
-     A driver submitting a transfer and issuing it should be granted the transfer
-     is queued even on a running DMA channel.
-     This implies that the queuing doesn't wait for the previous transfer end,
-     and that the descriptor chaining is not only done in the irq/tasklet code
-     triggered by the end of the transfer.
-     A transfer which is submitted and issued on a phy doesn't wait for a phy to
-     stop and restart, but is submitted on a "running channel". The other
-     drivers, especially mmp_pdma waited for the phy to stop before relaunching
-     a new transfer.
-
-  b) All transfers having asked for confirmation should be signaled
-     Any issued transfer with DMA_PREP_INTERRUPT should trigger a callback call.
-     This implies that even if an irq/tasklet is triggered by end of tx1, but
-     at the time of irq/dma tx2 is already finished, tx1->complete() and
-     tx2->complete() should be called.
-
-  c) Channel running state
-     A driver should be able to query if a channel is running or not. For the
-     multimedia case, such as video capture, if a transfer is submitted and then
-     a check of the DMA channel reports a "stopped channel", the transfer should
-     not be issued until the next "start of frame interrupt", hence the need to
-     know if a channel is in running or stopped state.
-
-  d) Bandwidth guarantee
-     The PXA architecture has 4 levels of DMAs priorities : high, normal, low.
-     The high priorities get twice as much bandwidth as the normal, which get twice
-     as much as the low priorities.
-     A driver should be able to request a priority, especially the real-time
-     ones such as pxa_camera with (big) throughputs.
-
-Design
-------
-  a) Virtual channels
-     Same concept as in sa11x0 driver, ie. a driver was assigned a "virtual
-     channel" linked to the requestor line, and the physical DMA channel is
-     assigned on the fly when the transfer is issued.
-
-  b) Transfer anatomy for a scatter-gather transfer
-     +------------+-----+---------------+----------------+-----------------+
-     | desc-sg[0] | ... | desc-sg[last] | status updater | finisher/linker |
-     +------------+-----+---------------+----------------+-----------------+
-
-     This structure is pointed by dma->sg_cpu.
-     The descriptors are used as follows :
-      - desc-sg[i]: i-th descriptor, transferring the i-th sg
-        element to the video buffer scatter gather
-      - status updater
-        Transfers a single u32 to a well known dma coherent memory to leave
-        a trace that this transfer is done. The "well known" is unique per
-        physical channel, meaning that a read of this value will tell which
-        is the last finished transfer at that point in time.
-      - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN
-      - linker: has ddadr= desc-sg[0] of next transfer, dcmd=0
-
-  c) Transfers hot-chaining
-     Suppose the running chain is :
-         Buffer 1         Buffer 2
-     +---------+----+---+  +----+----+----+---+
-     | d0 | .. | dN | l |  | d0 | .. | dN | f |
-     +---------+----+-|-+  ^----+----+----+---+
-                      |    |
-                      +----+
-
-     After a call to dmaengine_submit(b3), the chain will look like :
-          Buffer 1              Buffer 2             Buffer 3
-     +---------+----+---+  +----+----+----+---+  +----+----+----+---+
-     | d0 | .. | dN | l |  | d0 | .. | dN | l |  | d0 | .. | dN | f |
-     +---------+----+-|-+  ^----+----+----+-|-+  ^----+----+----+---+
-                      |    |                |    |
-                      +----+                +----+
-                                           new_link
-
-     If while new_link was created the DMA channel stopped, it is _not_
-     restarted. Hot-chaining doesn't break the assumption that
-     dma_async_issue_pending() is to be used to ensure the transfer is actually started.
-
-     One exception to this rule :
-       - if Buffer1 and Buffer2 had all their addresses 8 bytes aligned
-       - and if Buffer3 has at least one address not 4 bytes aligned
-       - then hot-chaining cannot happen, as the channel must be stopped, the
-         "align bit" must be set, and the channel restarted As a consequence,
-         such a transfer tx_submit() will be queued on the submitted queue, and
-         this specific case if the DMA is already running in aligned mode.
-
-  d) Transfers completion updater
-     Each time a transfer is completed on a channel, an interrupt might be
-     generated or not, up to the client's request. But in each case, the last
-     descriptor of a transfer, the "status updater", will write the latest
-     transfer being completed into the physical channel's completion mark.
-
-     This will speed up residue calculation, for large transfers such as video
-     buffers which hold around 6k descriptors or more. This also allows without
-     any lock to find out what is the latest completed transfer in a running
-     DMA chain.
-
-  e) Transfers completion, irq and tasklet
-     When a transfer flagged as "DMA_PREP_INTERRUPT" is finished, the dma irq
-     is raised. Upon this interrupt, a tasklet is scheduled for the physical
-     channel.
-     The tasklet is responsible for :
-      - reading the physical channel last updater mark
-      - calling all the transfer callbacks of finished transfers, based on
-        that mark, and each transfer flags.
-     If a transfer is completed while this handling is done, a dma irq will
-     be raised, and the tasklet will be scheduled once again, having a new
-     updater mark.
-
-  f) Residue
-     Residue granularity will be descriptor based. The issued but not completed
-     transfers will be scanned for all of their descriptors against the
-     currently running descriptor.
-
-  g) Most complicated case of driver's tx queues
-     The most tricky situation is when :
-       - there are not "acked" transfers (tx0)
-       - a driver submitted an aligned tx1, not chained
-       - a driver submitted an aligned tx2 => tx2 is cold chained to tx1
-       - a driver issued tx1+tx2 => channel is running in aligned mode
-       - a driver submitted an aligned tx3 => tx3 is hot-chained
-       - a driver submitted an unaligned tx4 => tx4 is put in submitted queue,
-         not chained
-       - a driver issued tx4 => tx4 is put in issued queue, not chained
-       - a driver submitted an aligned tx5 => tx5 is put in submitted queue, not
-         chained
-       - a driver submitted an aligned tx6 => tx6 is put in submitted queue,
-         cold chained to tx5
-
-     This translates into (after tx4 is issued) :
-       - issued queue
-     +-----+ +-----+ +-----+ +-----+
-     | tx1 | | tx2 | | tx3 | | tx4 |
-     +---|-+ ^---|-+ ^-----+ +-----+
-         |   |   |   |
-         +---+   +---+
-       - submitted queue
-     +-----+ +-----+
-     | tx5 | | tx6 |
-     +---|-+ ^-----+
-         |   |
-         +---+
-       - completed queue : empty
-       - allocated queue : tx0
-
-     It should be noted that after tx3 is completed, the channel is stopped, and
-     restarted in "unaligned mode" to handle tx4.
-
-Author: Robert Jarzmik <robert.jarzmik@free.fr>
diff --git a/Documentation/doc-guide/kernel-doc.rst b/Documentation/doc-guide/kernel-doc.rst
index b24854b5d6be..0268335414ce 100644
--- a/Documentation/doc-guide/kernel-doc.rst
+++ b/Documentation/doc-guide/kernel-doc.rst
@@ -65,7 +65,7 @@ Without options, the kernel-doc directive includes all documentation comments
 from the source file.
 
 The kernel-doc extension is included in the kernel source tree, at
-``Documentation/sphinx/kernel-doc.py``. Internally, it uses the
+``Documentation/sphinx/kerneldoc.py``. Internally, it uses the
 ``scripts/kernel-doc`` script to extract the documentation comments from the
 source.
 
diff --git a/Documentation/driver-api/dmaengine/client.rst b/Documentation/driver-api/dmaengine/client.rst
new file mode 100644
index 000000000000..6245c99af8c1
--- /dev/null
+++ b/Documentation/driver-api/dmaengine/client.rst
@@ -0,0 +1,275 @@
+====================
+DMA Engine API Guide
+====================
+
+Vinod Koul <vinod dot koul at intel.com>
+
+.. note:: For DMA Engine usage in async_tx please see:
+          ``Documentation/crypto/async-tx-api.txt``
+
+
+Below is a guide to device driver writers on how to use the Slave-DMA API of the
+DMA Engine. This is applicable only for slave DMA usage only.
+
+DMA usage
+=========
+
+The slave DMA usage consists of following steps:
+
+- Allocate a DMA slave channel
+
+- Set slave and controller specific parameters
+
+- Get a descriptor for transaction
+
+- Submit the transaction
+
+- Issue pending requests and wait for callback notification
+
+The details of these operations are:
+
+1. Allocate a DMA slave channel
+
+   Channel allocation is slightly different in the slave DMA context,
+   client drivers typically need a channel from a particular DMA
+   controller only and even in some cases a specific channel is desired.
+   To request a channel dma_request_chan() API is used.
+
+   Interface:
+
+   .. code-block:: c
+
+      struct dma_chan *dma_request_chan(struct device *dev, const char *name);
+
+   Which will find and return the ``name`` DMA channel associated with the 'dev'
+   device. The association is done via DT, ACPI or board file based
+   dma_slave_map matching table.
+
+   A channel allocated via this interface is exclusive to the caller,
+   until dma_release_channel() is called.
+
+2. Set slave and controller specific parameters
+
+   Next step is always to pass some specific information to the DMA
+   driver. Most of the generic information which a slave DMA can use
+   is in struct dma_slave_config. This allows the clients to specify
+   DMA direction, DMA addresses, bus widths, DMA burst lengths etc
+   for the peripheral.
+
+   If some DMA controllers have more parameters to be sent then they
+   should try to embed struct dma_slave_config in their controller
+   specific structure. That gives flexibility to client to pass more
+   parameters, if required.
+
+   Interface:
+
+   .. code-block:: c
+
+      int dmaengine_slave_config(struct dma_chan *chan,
+			struct dma_slave_config *config)
+
+   Please see the dma_slave_config structure definition in dmaengine.h
+   for a detailed explanation of the struct members. Please note
+   that the 'direction' member will be going away as it duplicates the
+   direction given in the prepare call.
+
+3. Get a descriptor for transaction
+
+  For slave usage the various modes of slave transfers supported by the
+  DMA-engine are:
+
+  - slave_sg: DMA a list of scatter gather buffers from/to a peripheral
+
+  - dma_cyclic: Perform a cyclic DMA operation from/to a peripheral till the
+    operation is explicitly stopped.
+
+  - interleaved_dma: This is common to Slave as well as M2M clients. For slave
+    address of devices' fifo could be already known to the driver.
+    Various types of operations could be expressed by setting
+    appropriate values to the 'dma_interleaved_template' members.
+
+  A non-NULL return of this transfer API represents a "descriptor" for
+  the given transaction.
+
+  Interface:
+
+  .. code-block:: c
+
+     struct dma_async_tx_descriptor *dmaengine_prep_slave_sg(
+		struct dma_chan *chan, struct scatterlist *sgl,
+		unsigned int sg_len, enum dma_data_direction direction,
+		unsigned long flags);
+
+     struct dma_async_tx_descriptor *dmaengine_prep_dma_cyclic(
+		struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
+		size_t period_len, enum dma_data_direction direction);
+
+     struct dma_async_tx_descriptor *dmaengine_prep_interleaved_dma(
+		struct dma_chan *chan, struct dma_interleaved_template *xt,
+		unsigned long flags);
+
+  The peripheral driver is expected to have mapped the scatterlist for
+  the DMA operation prior to calling dmaengine_prep_slave_sg(), and must
+  keep the scatterlist mapped until the DMA operation has completed.
+  The scatterlist must be mapped using the DMA struct device.
+  If a mapping needs to be synchronized later, dma_sync_*_for_*() must be
+  called using the DMA struct device, too.
+  So, normal setup should look like this:
+
+  .. code-block:: c
+
+     nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len);
+	if (nr_sg == 0)
+		/* error */
+
+	desc = dmaengine_prep_slave_sg(chan, sgl, nr_sg, direction, flags);
+
+  Once a descriptor has been obtained, the callback information can be
+  added and the descriptor must then be submitted. Some DMA engine
+  drivers may hold a spinlock between a successful preparation and
+  submission so it is important that these two operations are closely
+  paired.
+
+  .. note::
+
+     Although the async_tx API specifies that completion callback
+     routines cannot submit any new operations, this is not the
+     case for slave/cyclic DMA.
+
+     For slave DMA, the subsequent transaction may not be available
+     for submission prior to callback function being invoked, so
+     slave DMA callbacks are permitted to prepare and submit a new
+     transaction.
+
+     For cyclic DMA, a callback function may wish to terminate the
+     DMA via dmaengine_terminate_async().
+
+     Therefore, it is important that DMA engine drivers drop any
+     locks before calling the callback function which may cause a
+     deadlock.
+
+     Note that callbacks will always be invoked from the DMA
+     engines tasklet, never from interrupt context.
+
+4. Submit the transaction
+
+   Once the descriptor has been prepared and the callback information
+   added, it must be placed on the DMA engine drivers pending queue.
+
+   Interface:
+
+   .. code-block:: c
+
+      dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc)
+
+   This returns a cookie can be used to check the progress of DMA engine
+   activity via other DMA engine calls not covered in this document.
+
+   dmaengine_submit() will not start the DMA operation, it merely adds
+   it to the pending queue. For this, see step 5, dma_async_issue_pending.
+
+5. Issue pending DMA requests and wait for callback notification
+
+   The transactions in the pending queue can be activated by calling the
+   issue_pending API. If channel is idle then the first transaction in
+   queue is started and subsequent ones queued up.
+
+   On completion of each DMA operation, the next in queue is started and
+   a tasklet triggered. The tasklet will then call the client driver
+   completion callback routine for notification, if set.
+
+   Interface:
+
+   .. code-block:: c
+
+      void dma_async_issue_pending(struct dma_chan *chan);
+
+Further APIs:
+------------
+
+1. Terminate APIs
+
+   .. code-block:: c
+
+      int dmaengine_terminate_sync(struct dma_chan *chan)
+      int dmaengine_terminate_async(struct dma_chan *chan)
+      int dmaengine_terminate_all(struct dma_chan *chan) /* DEPRECATED */
+
+   This causes all activity for the DMA channel to be stopped, and may
+   discard data in the DMA FIFO which hasn't been fully transferred.
+   No callback functions will be called for any incomplete transfers.
+
+   Two variants of this function are available.
+
+   dmaengine_terminate_async() might not wait until the DMA has been fully
+   stopped or until any running complete callbacks have finished. But it is
+   possible to call dmaengine_terminate_async() from atomic context or from
+   within a complete callback. dmaengine_synchronize() must be called before it
+   is safe to free the memory accessed by the DMA transfer or free resources
+   accessed from within the complete callback.
+
+   dmaengine_terminate_sync() will wait for the transfer and any running
+   complete callbacks to finish before it returns. But the function must not be
+   called from atomic context or from within a complete callback.
+
+   dmaengine_terminate_all() is deprecated and should not be used in new code.
+
+2. Pause API
+
+   .. code-block:: c
+
+      int dmaengine_pause(struct dma_chan *chan)
+
+   This pauses activity on the DMA channel without data loss.
+
+3. Resume API
+
+   .. code-block:: c
+
+       int dmaengine_resume(struct dma_chan *chan)
+
+   Resume a previously paused DMA channel. It is invalid to resume a
+   channel which is not currently paused.
+
+4. Check Txn complete
+
+   .. code-block:: c
+
+      enum dma_status dma_async_is_tx_complete(struct dma_chan *chan,
+		dma_cookie_t cookie, dma_cookie_t *last, dma_cookie_t *used)
+
+   This can be used to check the status of the channel. Please see
+   the documentation in include/linux/dmaengine.h for a more complete
+   description of this API.
+
+   This can be used in conjunction with dma_async_is_complete() and
+   the cookie returned from dmaengine_submit() to check for
+   completion of a specific DMA transaction.
+
+   .. note::
+
+      Not all DMA engine drivers can return reliable information for
+      a running DMA channel. It is recommended that DMA engine users
+      pause or stop (via dmaengine_terminate_all()) the channel before
+      using this API.
+
+5. Synchronize termination API
+
+   .. code-block:: c
+
+      void dmaengine_synchronize(struct dma_chan *chan)
+
+   Synchronize the termination of the DMA channel to the current context.
+
+   This function should be used after dmaengine_terminate_async() to synchronize
+   the termination of the DMA channel to the current context. The function will
+   wait for the transfer and any running complete callbacks to finish before it
+   returns.
+
+   If dmaengine_terminate_async() is used to stop the DMA channel this function
+   must be called before it is safe to free memory accessed by previously
+   submitted descriptors or to free any resources accessed within the complete
+   callback of previously submitted descriptors.
+
+   The behavior of this function is undefined if dma_async_issue_pending() has
+   been called between dmaengine_terminate_async() and this function.
diff --git a/Documentation/dmaengine/dmatest.txt b/Documentation/driver-api/dmaengine/dmatest.rst
index fb683c72dea8..3922c0a3f0c0 100644
--- a/Documentation/dmaengine/dmatest.txt
+++ b/Documentation/driver-api/dmaengine/dmatest.rst
@@ -1,11 +1,13 @@
-				DMA Test Guide
-				==============
+==============
+DMA Test Guide
+==============
 
-		Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 
 This small document introduces how to test DMA drivers using dmatest module.
 
-	Part 1 - How to build the test module
+Part 1 - How to build the test module
+=====================================
 
 The menuconfig contains an option that could be found by following path:
 	Device Drivers -> DMA Engine support -> DMA Test client
@@ -13,25 +15,31 @@ The menuconfig contains an option that could be found by following path:
 In the configuration file the option called CONFIG_DMATEST. The dmatest could
 be built as module or inside kernel. Let's consider those cases.
 
-	Part 2 - When dmatest is built as a module...
+Part 2 - When dmatest is built as a module
+==========================================
 
-Example of usage:
-	% modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run=1
+Example of usage: ::
 
-...or:
-	% modprobe dmatest
-	% echo dma0chan0 > /sys/module/dmatest/parameters/channel
-	% echo 2000 > /sys/module/dmatest/parameters/timeout
-	% echo 1 > /sys/module/dmatest/parameters/iterations
-	% echo 1 > /sys/module/dmatest/parameters/run
+    % modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run=1
 
-...or on the kernel command line:
+...or: ::
 
-	dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmatest.run=1
+    % modprobe dmatest
+    % echo dma0chan0 > /sys/module/dmatest/parameters/channel
+    % echo 2000 > /sys/module/dmatest/parameters/timeout
+    % echo 1 > /sys/module/dmatest/parameters/iterations
+    % echo 1 > /sys/module/dmatest/parameters/run
 
-Hint: available channel list could be extracted by running the following
-command:
-	% ls -1 /sys/class/dma/
+...or on the kernel command line: ::
+
+    dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmatest.run=1
+
+..hint:: available channel list could be extracted by running the following
+         command:
+
+::
+
+    % ls -1 /sys/class/dma/
 
 Once started a message like "dmatest: Started 1 threads using dma0chan0" is
 emitted. After that only test failure messages are reported until the test
@@ -39,8 +47,9 @@ stops.
 
 Note that running a new test will not stop any in progress test.
 
-The following command returns the state of the test.
-	% cat /sys/module/dmatest/parameters/run
+The following command returns the state of the test. ::
+
+    % cat /sys/module/dmatest/parameters/run
 
 To wait for test completion userpace can poll 'run' until it is false, or use
 the wait parameter. Specifying 'wait=1' when loading the module causes module
@@ -50,15 +59,19 @@ before returning. For example, the following scripts wait for 42 tests
 to complete before exiting. Note that if 'iterations' is set to 'infinite' then
 waiting is disabled.
 
-Example:
-	% modprobe dmatest run=1 iterations=42 wait=1
-	% modprobe -r dmatest
-...or:
-	% modprobe dmatest run=1 iterations=42
-	% cat /sys/module/dmatest/parameters/wait
-	% modprobe -r dmatest
+Example: ::
+
+    % modprobe dmatest run=1 iterations=42 wait=1
+    % modprobe -r dmatest
 
-	Part 3 - When built-in in the kernel...
+...or: ::
+
+    % modprobe dmatest run=1 iterations=42
+    % cat /sys/module/dmatest/parameters/wait
+    % modprobe -r dmatest
+
+Part 3 - When built-in in the kernel
+====================================
 
 The module parameters that is supplied to the kernel command line will be used
 for the first performed test. After user gets a control, the test could be
@@ -66,27 +79,32 @@ re-run with the same or different parameters. For the details see the above
 section "Part 2 - When dmatest is built as a module..."
 
 In both cases the module parameters are used as the actual values for the test
-case. You always could check them at run-time by running
-	% grep -H . /sys/module/dmatest/parameters/*
+case. You always could check them at run-time by running ::
+
+    % grep -H . /sys/module/dmatest/parameters/*
 
-	Part 4 - Gathering the test results
+Part 4 - Gathering the test results
+===================================
 
-Test results are printed to the kernel log buffer with the format:
+Test results are printed to the kernel log buffer with the format: ::
 
-"dmatest: result <channel>: <test id>: '<error msg>' with src_off=<val> dst_off=<val> len=<val> (<err code>)"
+    "dmatest: result <channel>: <test id>: '<error msg>' with src_off=<val> dst_off=<val> len=<val> (<err code>)"
 
-Example of output:
-	% dmesg | tail -n 1
-	dmatest: result dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0)
+Example of output: ::
+
+
+    % dmesg | tail -n 1
+    dmatest: result dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0)
 
 The message format is unified across the different types of errors. A number in
 the parens represents additional information, e.g. error code, error counter,
 or status. A test thread also emits a summary line at completion listing the
 number of tests executed, number that failed, and a result code.
 
-Example:
-	% dmesg | tail -n 1
-	dmatest: dma0chan0-copy0: summary 1 test, 0 failures 1000 iops 100000 KB/s (0)
+Example: ::
+
+    % dmesg | tail -n 1
+    dmatest: dma0chan0-copy0: summary 1 test, 0 failures 1000 iops 100000 KB/s (0)
 
 The details of a data miscompare error are also emitted, but do not follow the
 above format.
diff --git a/Documentation/driver-api/dmaengine/index.rst b/Documentation/driver-api/dmaengine/index.rst
new file mode 100644
index 000000000000..3026fa975937
--- /dev/null
+++ b/Documentation/driver-api/dmaengine/index.rst
@@ -0,0 +1,55 @@
+=======================
+DMAEngine documentation
+=======================
+
+DMAEngine documentation provides documents for various aspects of DMAEngine
+framework.
+
+DMAEngine documentation
+-----------------------
+
+This book helps with DMAengine internal APIs and guide for DMAEngine device
+driver writers.
+
+.. toctree::
+   :maxdepth: 1
+
+   provider
+
+DMAEngine client documentation
+------------------------------
+
+This book is a guide to device driver writers on how to use the Slave-DMA
+API of the DMAEngine. This is applicable only for slave DMA usage only.
+
+.. toctree::
+   :maxdepth: 1
+
+   client
+
+DMA Test documentation
+----------------------
+
+This book introduces how to test DMA drivers using dmatest module.
+
+.. toctree::
+   :maxdepth: 1
+
+   dmatest
+
+PXA DMA documentation
+----------------------
+
+This book adds some notes about PXA DMA
+
+.. toctree::
+   :maxdepth: 1
+
+   pxa_dma
+
+.. only::  subproject
+
+   Indices
+   =======
+
+   * :ref:`genindex`
diff --git a/Documentation/driver-api/dmaengine/provider.rst b/Documentation/driver-api/dmaengine/provider.rst
new file mode 100644
index 000000000000..814acb4d2294
--- /dev/null
+++ b/Documentation/driver-api/dmaengine/provider.rst
@@ -0,0 +1,508 @@
+==================================
+DMAengine controller documentation
+==================================
+
+Hardware Introduction
+=====================
+
+Most of the Slave DMA controllers have the same general principles of
+operations.
+
+They have a given number of channels to use for the DMA transfers, and
+a given number of requests lines.
+
+Requests and channels are pretty much orthogonal. Channels can be used
+to serve several to any requests. To simplify, channels are the
+entities that will be doing the copy, and requests what endpoints are
+involved.
+
+The request lines actually correspond to physical lines going from the
+DMA-eligible devices to the controller itself. Whenever the device
+will want to start a transfer, it will assert a DMA request (DRQ) by
+asserting that request line.
+
+A very simple DMA controller would only take into account a single
+parameter: the transfer size. At each clock cycle, it would transfer a
+byte of data from one buffer to another, until the transfer size has
+been reached.
+
+That wouldn't work well in the real world, since slave devices might
+require a specific number of bits to be transferred in a single
+cycle. For example, we may want to transfer as much data as the
+physical bus allows to maximize performances when doing a simple
+memory copy operation, but our audio device could have a narrower FIFO
+that requires data to be written exactly 16 or 24 bits at a time. This
+is why most if not all of the DMA controllers can adjust this, using a
+parameter called the transfer width.
+
+Moreover, some DMA controllers, whenever the RAM is used as a source
+or destination, can group the reads or writes in memory into a buffer,
+so instead of having a lot of small memory accesses, which is not
+really efficient, you'll get several bigger transfers. This is done
+using a parameter called the burst size, that defines how many single
+reads/writes it's allowed to do without the controller splitting the
+transfer into smaller sub-transfers.
+
+Our theoretical DMA controller would then only be able to do transfers
+that involve a single contiguous block of data. However, some of the
+transfers we usually have are not, and want to copy data from
+non-contiguous buffers to a contiguous buffer, which is called
+scatter-gather.
+
+DMAEngine, at least for mem2dev transfers, require support for
+scatter-gather. So we're left with two cases here: either we have a
+quite simple DMA controller that doesn't support it, and we'll have to
+implement it in software, or we have a more advanced DMA controller,
+that implements in hardware scatter-gather.
+
+The latter are usually programmed using a collection of chunks to
+transfer, and whenever the transfer is started, the controller will go
+over that collection, doing whatever we programmed there.
+
+This collection is usually either a table or a linked list. You will
+then push either the address of the table and its number of elements,
+or the first item of the list to one channel of the DMA controller,
+and whenever a DRQ will be asserted, it will go through the collection
+to know where to fetch the data from.
+
+Either way, the format of this collection is completely dependent on
+your hardware. Each DMA controller will require a different structure,
+but all of them will require, for every chunk, at least the source and
+destination addresses, whether it should increment these addresses or
+not and the three parameters we saw earlier: the burst size, the
+transfer width and the transfer size.
+
+The one last thing is that usually, slave devices won't issue DRQ by
+default, and you have to enable this in your slave device driver first
+whenever you're willing to use DMA.
+
+These were just the general memory-to-memory (also called mem2mem) or
+memory-to-device (mem2dev) kind of transfers. Most devices often
+support other kind of transfers or memory operations that dmaengine
+support and will be detailed later in this document.
+
+DMA Support in Linux
+====================
+
+Historically, DMA controller drivers have been implemented using the
+async TX API, to offload operations such as memory copy, XOR,
+cryptography, etc., basically any memory to memory operation.
+
+Over time, the need for memory to device transfers arose, and
+dmaengine was extended. Nowadays, the async TX API is written as a
+layer on top of dmaengine, and acts as a client. Still, dmaengine
+accommodates that API in some cases, and made some design choices to
+ensure that it stayed compatible.
+
+For more information on the Async TX API, please look the relevant
+documentation file in Documentation/crypto/async-tx-api.txt.
+
+DMAEngine APIs
+==============
+
+``struct dma_device`` Initialization
+------------------------------------
+
+Just like any other kernel framework, the whole DMAEngine registration
+relies on the driver filling a structure and registering against the
+framework. In our case, that structure is dma_device.
+
+The first thing you need to do in your driver is to allocate this
+structure. Any of the usual memory allocators will do, but you'll also
+need to initialize a few fields in there:
+
+- channels: should be initialized as a list using the
+  INIT_LIST_HEAD macro for example
+
+- src_addr_widths:
+  should contain a bitmask of the supported source transfer width
+
+- dst_addr_widths:
+  should contain a bitmask of the supported destination transfer width
+
+- directions:
+  should contain a bitmask of the supported slave directions
+  (i.e. excluding mem2mem transfers)
+
+- residue_granularity:
+
+  - Granularity of the transfer residue reported to dma_set_residue.
+    This can be either:
+
+  - Descriptor
+
+    - Your device doesn't support any kind of residue
+      reporting. The framework will only know that a particular
+      transaction descriptor is done.
+
+      - Segment
+
+        - Your device is able to report which chunks have been transferred
+
+      - Burst
+
+        - Your device is able to report which burst have been transferred
+
+  - dev: should hold the pointer to the ``struct device`` associated
+    to your current driver instance.
+
+Supported transaction types
+---------------------------
+
+The next thing you need is to set which transaction types your device
+(and driver) supports.
+
+Our ``dma_device structure`` has a field called cap_mask that holds the
+various types of transaction supported, and you need to modify this
+mask using the dma_cap_set function, with various flags depending on
+transaction types you support as an argument.
+
+All those capabilities are defined in the ``dma_transaction_type enum``,
+in ``include/linux/dmaengine.h``
+
+Currently, the types available are:
+
+- DMA_MEMCPY
+
+  - The device is able to do memory to memory copies
+
+- DMA_XOR
+
+  - The device is able to perform XOR operations on memory areas
+
+  - Used to accelerate XOR intensive tasks, such as RAID5
+
+- DMA_XOR_VAL
+
+  - The device is able to perform parity check using the XOR
+    algorithm against a memory buffer.
+
+- DMA_PQ
+
+  - The device is able to perform RAID6 P+Q computations, P being a
+    simple XOR, and Q being a Reed-Solomon algorithm.
+
+- DMA_PQ_VAL
+
+  - The device is able to perform parity check using RAID6 P+Q
+    algorithm against a memory buffer.
+
+- DMA_INTERRUPT
+
+  - The device is able to trigger a dummy transfer that will
+    generate periodic interrupts
+
+  - Used by the client drivers to register a callback that will be
+    called on a regular basis through the DMA controller interrupt
+
+- DMA_PRIVATE
+
+  - The devices only supports slave transfers, and as such isn't
+    available for async transfers.
+
+- DMA_ASYNC_TX
+
+  - Must not be set by the device, and will be set by the framework
+    if needed
+
+  - TODO: What is it about?
+
+- DMA_SLAVE
+
+  - The device can handle device to memory transfers, including
+    scatter-gather transfers.
+
+  - While in the mem2mem case we were having two distinct types to
+    deal with a single chunk to copy or a collection of them, here,
+    we just have a single transaction type that is supposed to
+    handle both.
+
+  - If you want to transfer a single contiguous memory buffer,
+    simply build a scatter list with only one item.
+
+- DMA_CYCLIC
+
+  - The device can handle cyclic transfers.
+
+  - A cyclic transfer is a transfer where the chunk collection will
+    loop over itself, with the last item pointing to the first.
+
+  - It's usually used for audio transfers, where you want to operate
+    on a single ring buffer that you will fill with your audio data.
+
+- DMA_INTERLEAVE
+
+  - The device supports interleaved transfer.
+
+  - These transfers can transfer data from a non-contiguous buffer
+    to a non-contiguous buffer, opposed to DMA_SLAVE that can
+    transfer data from a non-contiguous data set to a continuous
+    destination buffer.
+
+  - It's usually used for 2d content transfers, in which case you
+    want to transfer a portion of uncompressed data directly to the
+    display to print it
+
+These various types will also affect how the source and destination
+addresses change over time.
+
+Addresses pointing to RAM are typically incremented (or decremented)
+after each transfer. In case of a ring buffer, they may loop
+(DMA_CYCLIC). Addresses pointing to a device's register (e.g. a FIFO)
+are typically fixed.
+
+Device operations
+-----------------
+
+Our dma_device structure also requires a few function pointers in
+order to implement the actual logic, now that we described what
+operations we were able to perform.
+
+The functions that we have to fill in there, and hence have to
+implement, obviously depend on the transaction types you reported as
+supported.
+
+- ``device_alloc_chan_resources``
+
+- ``device_free_chan_resources``
+
+  - These functions will be called whenever a driver will call
+    ``dma_request_channel`` or ``dma_release_channel`` for the first/last
+    time on the channel associated to that driver.
+
+  - They are in charge of allocating/freeing all the needed
+    resources in order for that channel to be useful for your driver.
+
+  - These functions can sleep.
+
+- ``device_prep_dma_*``
+
+  - These functions are matching the capabilities you registered
+    previously.
+
+  - These functions all take the buffer or the scatterlist relevant
+    for the transfer being prepared, and should create a hardware
+    descriptor or a list of hardware descriptors from it
+
+  - These functions can be called from an interrupt context
+
+  - Any allocation you might do should be using the GFP_NOWAIT
+    flag, in order not to potentially sleep, but without depleting
+    the emergency pool either.
+
+  - Drivers should try to pre-allocate any memory they might need
+    during the transfer setup at probe time to avoid putting to
+    much pressure on the nowait allocator.
+
+  - It should return a unique instance of the
+    ``dma_async_tx_descriptor structure``, that further represents this
+    particular transfer.
+
+  - This structure can be initialized using the function
+    ``dma_async_tx_descriptor_init``.
+
+  - You'll also need to set two fields in this structure:
+
+    - flags:
+      TODO: Can it be modified by the driver itself, or
+      should it be always the flags passed in the arguments
+
+    - tx_submit: A pointer to a function you have to implement,
+      that is supposed to push the current transaction descriptor to a
+      pending queue, waiting for issue_pending to be called.
+
+  - In this structure the function pointer callback_result can be
+    initialized in order for the submitter to be notified that a
+    transaction has completed. In the earlier code the function pointer
+    callback has been used. However it does not provide any status to the
+    transaction and will be deprecated. The result structure defined as
+    ``dmaengine_result`` that is passed in to callback_result
+    has two fields:
+
+    - result: This provides the transfer result defined by
+      ``dmaengine_tx_result``. Either success or some error condition.
+
+    - residue: Provides the residue bytes of the transfer for those that
+      support residue.
+
+- ``device_issue_pending``
+
+  - Takes the first transaction descriptor in the pending queue,
+    and starts the transfer. Whenever that transfer is done, it
+    should move to the next transaction in the list.
+
+  - This function can be called in an interrupt context
+
+- ``device_tx_status``
+
+  - Should report the bytes left to go over on the given channel
+
+  - Should only care about the transaction descriptor passed as
+    argument, not the currently active one on a given channel
+
+  - The tx_state argument might be NULL
+
+  - Should use dma_set_residue to report it
+
+  - In the case of a cyclic transfer, it should only take into
+    account the current period.
+
+  - This function can be called in an interrupt context.
+
+- device_config
+
+  - Reconfigures the channel with the configuration given as argument
+
+  - This command should NOT perform synchronously, or on any
+    currently queued transfers, but only on subsequent ones
+
+  - In this case, the function will receive a ``dma_slave_config``
+    structure pointer as an argument, that will detail which
+    configuration to use.
+
+  - Even though that structure contains a direction field, this
+    field is deprecated in favor of the direction argument given to
+    the prep_* functions
+
+  - This call is mandatory for slave operations only. This should NOT be
+    set or expected to be set for memcpy operations.
+    If a driver support both, it should use this call for slave
+    operations only and not for memcpy ones.
+
+- device_pause
+
+  - Pauses a transfer on the channel
+
+  - This command should operate synchronously on the channel,
+    pausing right away the work of the given channel
+
+- device_resume
+
+  - Resumes a transfer on the channel
+
+  - This command should operate synchronously on the channel,
+    resuming right away the work of the given channel
+
+- device_terminate_all
+
+  - Aborts all the pending and ongoing transfers on the channel
+
+  - For aborted transfers the complete callback should not be called
+
+  - Can be called from atomic context or from within a complete
+    callback of a descriptor. Must not sleep. Drivers must be able
+    to handle this correctly.
+
+  - Termination may be asynchronous. The driver does not have to
+    wait until the currently active transfer has completely stopped.
+    See device_synchronize.
+
+- device_synchronize
+
+  - Must synchronize the termination of a channel to the current
+    context.
+
+  - Must make sure that memory for previously submitted
+    descriptors is no longer accessed by the DMA controller.
+
+  - Must make sure that all complete callbacks for previously
+    submitted descriptors have finished running and none are
+    scheduled to run.
+
+  - May sleep.
+
+
+Misc notes
+==========
+
+(stuff that should be documented, but don't really know
+where to put them)
+
+``dma_run_dependencies``
+
+- Should be called at the end of an async TX transfer, and can be
+  ignored in the slave transfers case.
+
+- Makes sure that dependent operations are run before marking it
+  as complete.
+
+dma_cookie_t
+
+- it's a DMA transaction ID that will increment over time.
+
+- Not really relevant any more since the introduction of ``virt-dma``
+  that abstracts it away.
+
+DMA_CTRL_ACK
+
+- If clear, the descriptor cannot be reused by provider until the
+  client acknowledges receipt, i.e. has has a chance to establish any
+  dependency chains
+
+- This can be acked by invoking async_tx_ack()
+
+- If set, does not mean descriptor can be reused
+
+DMA_CTRL_REUSE
+
+- If set, the descriptor can be reused after being completed. It should
+  not be freed by provider if this flag is set.
+
+- The descriptor should be prepared for reuse by invoking
+  ``dmaengine_desc_set_reuse()`` which will set DMA_CTRL_REUSE.
+
+- ``dmaengine_desc_set_reuse()`` will succeed only when channel support
+  reusable descriptor as exhibited by capabilities
+
+- As a consequence, if a device driver wants to skip the
+  ``dma_map_sg()`` and ``dma_unmap_sg()`` in between 2 transfers,
+  because the DMA'd data wasn't used, it can resubmit the transfer right after
+  its completion.
+
+- Descriptor can be freed in few ways
+
+  - Clearing DMA_CTRL_REUSE by invoking
+    ``dmaengine_desc_clear_reuse()`` and submitting for last txn
+
+  - Explicitly invoking ``dmaengine_desc_free()``, this can succeed only
+    when DMA_CTRL_REUSE is already set
+
+  - Terminating the channel
+
+- DMA_PREP_CMD
+
+  - If set, the client driver tells DMA controller that passed data in DMA
+    API is command data.
+
+  - Interpretation of command data is DMA controller specific. It can be
+    used for issuing commands to other peripherals/register reads/register
+    writes for which the descriptor should be in different format from
+    normal data descriptors.
+
+General Design Notes
+====================
+
+Most of the DMAEngine drivers you'll see are based on a similar design
+that handles the end of transfer interrupts in the handler, but defer
+most work to a tasklet, including the start of a new transfer whenever
+the previous transfer ended.
+
+This is a rather inefficient design though, because the inter-transfer
+latency will be not only the interrupt latency, but also the
+scheduling latency of the tasklet, which will leave the channel idle
+in between, which will slow down the global transfer rate.
+
+You should avoid this kind of practice, and instead of electing a new
+transfer in your tasklet, move that part to the interrupt handler in
+order to have a shorter idle window (that we can't really avoid
+anyway).
+
+Glossary
+========
+
+- Burst: A number of consecutive read or write operations that
+  can be queued to buffers before being flushed to memory.
+
+- Chunk: A contiguous collection of bursts
+
+- Transfer: A collection of chunks (be it contiguous or not)
diff --git a/Documentation/driver-api/dmaengine/pxa_dma.rst b/Documentation/driver-api/dmaengine/pxa_dma.rst
new file mode 100644
index 000000000000..442ee691a190
--- /dev/null
+++ b/Documentation/driver-api/dmaengine/pxa_dma.rst
@@ -0,0 +1,190 @@
+==============================
+PXA/MMP - DMA Slave controller
+==============================
+
+Constraints
+===========
+
+a) Transfers hot queuing
+A driver submitting a transfer and issuing it should be granted the transfer
+is queued even on a running DMA channel.
+This implies that the queuing doesn't wait for the previous transfer end,
+and that the descriptor chaining is not only done in the irq/tasklet code
+triggered by the end of the transfer.
+A transfer which is submitted and issued on a phy doesn't wait for a phy to
+stop and restart, but is submitted on a "running channel". The other
+drivers, especially mmp_pdma waited for the phy to stop before relaunching
+a new transfer.
+
+b) All transfers having asked for confirmation should be signaled
+Any issued transfer with DMA_PREP_INTERRUPT should trigger a callback call.
+This implies that even if an irq/tasklet is triggered by end of tx1, but
+at the time of irq/dma tx2 is already finished, tx1->complete() and
+tx2->complete() should be called.
+
+c) Channel running state
+A driver should be able to query if a channel is running or not. For the
+multimedia case, such as video capture, if a transfer is submitted and then
+a check of the DMA channel reports a "stopped channel", the transfer should
+not be issued until the next "start of frame interrupt", hence the need to
+know if a channel is in running or stopped state.
+
+d) Bandwidth guarantee
+The PXA architecture has 4 levels of DMAs priorities : high, normal, low.
+The high priorities get twice as much bandwidth as the normal, which get twice
+as much as the low priorities.
+A driver should be able to request a priority, especially the real-time
+ones such as pxa_camera with (big) throughputs.
+
+Design
+======
+a) Virtual channels
+Same concept as in sa11x0 driver, ie. a driver was assigned a "virtual
+channel" linked to the requestor line, and the physical DMA channel is
+assigned on the fly when the transfer is issued.
+
+b) Transfer anatomy for a scatter-gather transfer
+
+::
+
+   +------------+-----+---------------+----------------+-----------------+
+   | desc-sg[0] | ... | desc-sg[last] | status updater | finisher/linker |
+   +------------+-----+---------------+----------------+-----------------+
+
+This structure is pointed by dma->sg_cpu.
+The descriptors are used as follows :
+
+    - desc-sg[i]: i-th descriptor, transferring the i-th sg
+      element to the video buffer scatter gather
+
+    - status updater
+      Transfers a single u32 to a well known dma coherent memory to leave
+      a trace that this transfer is done. The "well known" is unique per
+      physical channel, meaning that a read of this value will tell which
+      is the last finished transfer at that point in time.
+
+    - finisher: has ddadr=DADDR_STOP, dcmd=ENDIRQEN
+
+    - linker: has ddadr= desc-sg[0] of next transfer, dcmd=0
+
+c) Transfers hot-chaining
+Suppose the running chain is:
+
+::
+
+   Buffer 1              Buffer 2
+   +---------+----+---+  +----+----+----+---+
+   | d0 | .. | dN | l |  | d0 | .. | dN | f |
+   +---------+----+-|-+  ^----+----+----+---+
+                    |    |
+                    +----+
+
+After a call to dmaengine_submit(b3), the chain will look like:
+
+::
+
+   Buffer 1              Buffer 2              Buffer 3
+   +---------+----+---+  +----+----+----+---+  +----+----+----+---+
+   | d0 | .. | dN | l |  | d0 | .. | dN | l |  | d0 | .. | dN | f |
+   +---------+----+-|-+  ^----+----+----+-|-+  ^----+----+----+---+
+                    |    |                |    |
+                    +----+                +----+
+                                         new_link
+
+If while new_link was created the DMA channel stopped, it is _not_
+restarted. Hot-chaining doesn't break the assumption that
+dma_async_issue_pending() is to be used to ensure the transfer is actually started.
+
+One exception to this rule :
+
+- if Buffer1 and Buffer2 had all their addresses 8 bytes aligned
+
+- and if Buffer3 has at least one address not 4 bytes aligned
+
+- then hot-chaining cannot happen, as the channel must be stopped, the
+  "align bit" must be set, and the channel restarted As a consequence,
+  such a transfer tx_submit() will be queued on the submitted queue, and
+  this specific case if the DMA is already running in aligned mode.
+
+d) Transfers completion updater
+Each time a transfer is completed on a channel, an interrupt might be
+generated or not, up to the client's request. But in each case, the last
+descriptor of a transfer, the "status updater", will write the latest
+transfer being completed into the physical channel's completion mark.
+
+This will speed up residue calculation, for large transfers such as video
+buffers which hold around 6k descriptors or more. This also allows without
+any lock to find out what is the latest completed transfer in a running
+DMA chain.
+
+e) Transfers completion, irq and tasklet
+When a transfer flagged as "DMA_PREP_INTERRUPT" is finished, the dma irq
+is raised. Upon this interrupt, a tasklet is scheduled for the physical
+channel.
+
+The tasklet is responsible for :
+
+- reading the physical channel last updater mark
+
+- calling all the transfer callbacks of finished transfers, based on
+  that mark, and each transfer flags.
+
+If a transfer is completed while this handling is done, a dma irq will
+be raised, and the tasklet will be scheduled once again, having a new
+updater mark.
+
+f) Residue
+Residue granularity will be descriptor based. The issued but not completed
+transfers will be scanned for all of their descriptors against the
+currently running descriptor.
+
+g) Most complicated case of driver's tx queues
+The most tricky situation is when :
+
+ - there are not "acked" transfers (tx0)
+
+ - a driver submitted an aligned tx1, not chained
+
+ - a driver submitted an aligned tx2 => tx2 is cold chained to tx1
+
+ - a driver issued tx1+tx2 => channel is running in aligned mode
+
+ - a driver submitted an aligned tx3 => tx3 is hot-chained
+
+ - a driver submitted an unaligned tx4 => tx4 is put in submitted queue,
+   not chained
+
+ - a driver issued tx4 => tx4 is put in issued queue, not chained
+
+ - a driver submitted an aligned tx5 => tx5 is put in submitted queue, not
+   chained
+
+ - a driver submitted an aligned tx6 => tx6 is put in submitted queue,
+   cold chained to tx5
+
+ This translates into (after tx4 is issued) :
+
+ - issued queue
+
+ ::
+
+      +-----+ +-----+ +-----+ +-----+
+      | tx1 | | tx2 | | tx3 | | tx4 |
+      +---|-+ ^---|-+ ^-----+ +-----+
+          |   |   |   |
+          +---+   +---+
+        - submitted queue
+      +-----+ +-----+
+      | tx5 | | tx6 |
+      +---|-+ ^-----+
+          |   |
+          +---+
+
+- completed queue : empty
+
+- allocated queue : tx0
+
+It should be noted that after tx3 is completed, the channel is stopped, and
+restarted in "unaligned mode" to handle tx4.
+
+Author: Robert Jarzmik <robert.jarzmik@free.fr>
diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst
index 9c20624842b7..d17a9876b473 100644
--- a/Documentation/driver-api/index.rst
+++ b/Documentation/driver-api/index.rst
@@ -46,6 +46,7 @@ available subsections can be seen below.
    pinctl
    gpio
    misc_devices
+   dmaengine/index
 
 .. only::  subproject and html
 
diff --git a/Documentation/driver-api/pm/devices.rst b/Documentation/driver-api/pm/devices.rst
index bedd32388dac..53c1b0b06da5 100644
--- a/Documentation/driver-api/pm/devices.rst
+++ b/Documentation/driver-api/pm/devices.rst
@@ -274,7 +274,7 @@ sleep states and the hibernation state ("suspend-to-disk").  Each phase involves
 executing callbacks for every device before the next phase begins.  Not all
 buses or classes support all these callbacks and not all drivers use all the
 callbacks.  The various phases always run after tasks have been frozen and
-before they are unfrozen.  Furthermore, the ``*_noirq phases`` run at a time
+before they are unfrozen.  Furthermore, the ``*_noirq`` phases run at a time
 when IRQ handlers have been disabled (except for those marked with the
 IRQF_NO_SUSPEND flag).
 
@@ -328,7 +328,10 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
 	After the ``->prepare`` callback method returns, no new children may be
 	registered below the device.  The method may also prepare the device or
 	driver in some way for the upcoming system power transition, but it
-	should not put the device into a low-power state.
+	should not put the device into a low-power state.  Moreover, if the
+	device supports runtime power management, the ``->prepare`` callback
+	method must not update its state in case it is necessary to resume it
+	from runtime suspend later on.
 
 	For devices supporting runtime power management, the return value of the
 	prepare callback can be used to indicate to the PM core that it may
@@ -351,11 +354,35 @@ the phases are: ``prepare``, ``suspend``, ``suspend_late``, ``suspend_noirq``.
 	is because all such devices are initially set to runtime-suspended with
 	runtime PM disabled.
 
+	This feature also can be controlled by device drivers by using the
+	``DPM_FLAG_NEVER_SKIP`` and ``DPM_FLAG_SMART_PREPARE`` driver power
+	management flags.  [Typically, they are set at the time the driver is
+	probed against the device in question by passing them to the
+	:c:func:`dev_pm_set_driver_flags` helper function.]  If the first of
+	these flags is set, the PM core will not apply the direct-complete
+	procedure described above to the given device and, consequenty, to any
+	of its ancestors.  The second flag, when set, informs the middle layer
+	code (bus types, device types, PM domains, classes) that it should take
+	the return value of the ``->prepare`` callback provided by the driver
+	into account and it may only return a positive value from its own
+	``->prepare`` callback if the driver's one also has returned a positive
+	value.
+
     2.	The ``->suspend`` methods should quiesce the device to stop it from
 	performing I/O.  They also may save the device registers and put it into
 	the appropriate low-power state, depending on the bus type the device is
 	on, and they may enable wakeup events.
 
+	However, for devices supporting runtime power management, the
+	``->suspend`` methods provided by subsystems (bus types and PM domains
+	in particular) must follow an additional rule regarding what can be done
+	to the devices before their drivers' ``->suspend`` methods are called.
+	Namely, they can only resume the devices from runtime suspend by
+	calling :c:func:`pm_runtime_resume` for them, if that is necessary, and
+	they must not update the state of the devices in any other way at that
+	time (in case the drivers need to resume the devices from runtime
+	suspend in their ``->suspend`` methods).
+
     3.	For a number of devices it is convenient to split suspend into the
 	"quiesce device" and "save device state" phases, in which cases
 	``suspend_late`` is meant to do the latter.  It is always executed after
@@ -675,7 +702,7 @@ sub-domain of the parent domain.
 
 Support for power domains is provided through the :c:member:`pm_domain` field of
 |struct device|.  This field is a pointer to an object of type
-|struct dev_pm_domain|, defined in :file:`include/linux/pm.h``, providing a set
+|struct dev_pm_domain|, defined in :file:`include/linux/pm.h`, providing a set
 of power management callbacks analogous to the subsystem-level and device driver
 callbacks that are executed for the given device during all power transitions,
 instead of the respective subsystem-level callbacks.  Specifically, if a
@@ -729,6 +756,36 @@ state temporarily, for example so that its system wakeup capability can be
 disabled.  This all depends on the hardware and the design of the subsystem and
 device driver in question.
 
+If it is necessary to resume a device from runtime suspend during a system-wide
+transition into a sleep state, that can be done by calling
+:c:func:`pm_runtime_resume` for it from the ``->suspend`` callback (or its
+couterpart for transitions related to hibernation) of either the device's driver
+or a subsystem responsible for it (for example, a bus type or a PM domain).
+That is guaranteed to work by the requirement that subsystems must not change
+the state of devices (possibly except for resuming them from runtime suspend)
+from their ``->prepare`` and ``->suspend`` callbacks (or equivalent) *before*
+invoking device drivers' ``->suspend`` callbacks (or equivalent).
+
+Some bus types and PM domains have a policy to resume all devices from runtime
+suspend upfront in their ``->suspend`` callbacks, but that may not be really
+necessary if the driver of the device can cope with runtime-suspended devices.
+The driver can indicate that by setting ``DPM_FLAG_SMART_SUSPEND`` in
+:c:member:`power.driver_flags` at the probe time, by passing it to the
+:c:func:`dev_pm_set_driver_flags` helper.  That also may cause middle-layer code
+(bus types, PM domains etc.) to skip the ``->suspend_late`` and
+``->suspend_noirq`` callbacks provided by the driver if the device remains in
+runtime suspend at the beginning of the ``suspend_late`` phase of system-wide
+suspend (or in the ``poweroff_late`` phase of hibernation), when runtime PM
+has been disabled for it, under the assumption that its state should not change
+after that point until the system-wide transition is over.  If that happens, the
+driver's system-wide resume callbacks, if present, may still be invoked during
+the subsequent system-wide resume transition and the device's runtime power
+management status may be set to "active" before enabling runtime PM for it,
+so the driver must be prepared to cope with the invocation of its system-wide
+resume callbacks back-to-back with its ``->runtime_suspend`` one (without the
+intervening ``->runtime_resume`` and so on) and the final state of the device
+must reflect the "active" status for runtime PM in that case.
+
 During system-wide resume from a sleep state it's easiest to put devices into
 the full-power state, as explained in :file:`Documentation/power/runtime_pm.txt`.
 Refer to that document for more information regarding this particular issue as
diff --git a/Documentation/driver-api/usb/usb.rst b/Documentation/driver-api/usb/usb.rst
index dba0f876b36f..078e981e2b16 100644
--- a/Documentation/driver-api/usb/usb.rst
+++ b/Documentation/driver-api/usb/usb.rst
@@ -690,9 +690,7 @@ The USB devices are now exported via debugfs:
 This file is handy for status viewing tools in user mode, which can scan
 the text format and ignore most of it. More detailed device status
 (including class and vendor status) is available from device-specific
-files. For information about the current format of this file, see the
-``Documentation/usb/proc_usb_info.txt`` file in your Linux kernel
-sources.
+files. For information about the current format of this file, see below.
 
 This file, in combination with the poll() system call, can also be used
 to detect when devices are added or removed::
diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt
index 4421135826a2..d661e6f7e6a0 100644
--- a/Documentation/driver-model/driver.txt
+++ b/Documentation/driver-model/driver.txt
@@ -196,12 +196,13 @@ struct driver_attribute {
 };
 
 Device drivers can export attributes via their sysfs directories. 
-Drivers can declare attributes using a DRIVER_ATTR macro that works
-identically to the DEVICE_ATTR macro. 
+Drivers can declare attributes using a DRIVER_ATTR_RW and DRIVER_ATTR_RO
+macro that works identically to the DEVICE_ATTR_RW and DEVICE_ATTR_RO
+macros.
 
 Example:
 
-DRIVER_ATTR(debug,0644,show_debug,store_debug);
+DRIVER_ATTR_RW(debug);
 
 This is equivalent to declaring:
 
diff --git a/Documentation/fault-injection/notifier-error-inject.txt b/Documentation/fault-injection/notifier-error-inject.txt
index 83d3f4e43e91..e861d761de24 100644
--- a/Documentation/fault-injection/notifier-error-inject.txt
+++ b/Documentation/fault-injection/notifier-error-inject.txt
@@ -6,41 +6,11 @@ specified notifier chain callbacks. It is useful to test the error handling of
 notifier call chain failures which is rarely executed.  There are kernel
 modules that can be used to test the following notifiers.
 
- * CPU notifier
  * PM notifier
  * Memory hotplug notifier
  * powerpc pSeries reconfig notifier
  * Netdevice notifier
 
-CPU notifier error injection module
------------------------------------
-This feature can be used to test the error handling of the CPU notifiers by
-injecting artificial errors to CPU notifier chain callbacks.
-
-If the notifier call chain should be failed with some events notified, write
-the error code to debugfs interface
-/sys/kernel/debug/notifier-error-inject/cpu/actions/<notifier event>/error
-
-Possible CPU notifier events to be failed are:
-
- * CPU_UP_PREPARE
- * CPU_UP_PREPARE_FROZEN
- * CPU_DOWN_PREPARE
- * CPU_DOWN_PREPARE_FROZEN
-
-Example1: Inject CPU offline error (-1 == -EPERM)
-
-	# cd /sys/kernel/debug/notifier-error-inject/cpu
-	# echo -1 > actions/CPU_DOWN_PREPARE/error
-	# echo 0 > /sys/devices/system/cpu/cpu1/online
-	bash: echo: write error: Operation not permitted
-
-Example2: inject CPU online error (-2 == -ENOENT)
-
-	# echo -2 > actions/CPU_UP_PREPARE/error
-	# echo 1 > /sys/devices/system/cpu/cpu1/online
-	bash: echo: write error: No such file or directory
-
 PM notifier error injection module
 ----------------------------------
 This feature is controlled through debugfs interface
diff --git a/Documentation/fb/fbcon.txt b/Documentation/fb/fbcon.txt
index 4a9739abc860..79c22d096bbc 100644
--- a/Documentation/fb/fbcon.txt
+++ b/Documentation/fb/fbcon.txt
@@ -77,8 +77,8 @@ C. Boot options
 1. fbcon=font:<name>
 
         Select the initial font to use. The value 'name' can be any of the
-        compiled-in fonts: VGA8x16, 7x14, 10x18, VGA8x8, MINI4x6, RomanLarge,
-        SUN8x16, SUN12x22, ProFont6x11, Acorn8x8, PEARL8x8.
+        compiled-in fonts: 10x18, 6x10, 7x14, Acorn8x8, MINI4x6,
+        PEARL8x8, ProFont6x11, SUN12x22, SUN8x16, VGA8x16, VGA8x8.
 
 	Note, not all drivers can handle font with widths not divisible by 8,
         such as vga16fb.
@@ -148,6 +148,13 @@ C. Boot options
 	Actually, the underlying fb driver is totally ignorant of console
 	rotation.
 
+5. fbcon=margin:<color>
+
+	This option specifies the color of the margins. The margins are the
+	leftover area at the right and the bottom of the screen that are not
+	used by text. By default, this area will be black. The 'color' value
+	is an integer number that depends on the framebuffer driver being used.
+
 C. Attaching, Detaching and Unloading
 
 Before going on how to attach, detach and unload the framebuffer console, an
diff --git a/Documentation/features/debug/KASAN/arch-support.txt b/Documentation/features/debug/KASAN/arch-support.txt
index 76bbd7fe27b3..f377290fe48e 100644
--- a/Documentation/features/debug/KASAN/arch-support.txt
+++ b/Documentation/features/debug/KASAN/arch-support.txt
@@ -34,6 +34,6 @@
     |        tile: | TODO |
     |          um: | TODO |
     |   unicore32: | TODO |
-    |         x86: |  ok  |
+    |         x86: |  ok  | 64-bit only
     |      xtensa: | TODO |
     -----------------------
diff --git a/Documentation/filesystems/cifs/AUTHORS b/Documentation/filesystems/cifs/AUTHORS
index c98800df677f..9f4f87e16240 100644
--- a/Documentation/filesystems/cifs/AUTHORS
+++ b/Documentation/filesystems/cifs/AUTHORS
@@ -41,6 +41,11 @@ Igor Mammedov (DFS support)
 Jeff Layton (many, many fixes, as well as great work on the cifs Kerberos code)
 Scott Lovenberg
 Pavel Shilovsky (for great work adding SMB2 support, and various SMB3 features)
+Aurelien Aptel (for DFS SMB3 work and some key bug fixes)
+Ronnie Sahlberg (for SMB3 xattr work and bug fixes)
+Shirish Pargaonkar (for many ACL patches over the years)
+Sachin Prabhu (many bug fixes, including for reconnect, copy offload and security)
+
 
 Test case and Bug Report contributors
 -------------------------------------
diff --git a/Documentation/filesystems/cifs/README b/Documentation/filesystems/cifs/README
index a54788405429..a9da51553ba3 100644
--- a/Documentation/filesystems/cifs/README
+++ b/Documentation/filesystems/cifs/README
@@ -1,10 +1,14 @@
-The CIFS VFS support for Linux supports many advanced network filesystem 
-features such as hierarchical dfs like namespace, hardlinks, locking and more.  
+This module supports the SMB3 family of advanced network protocols (as well
+as older dialects, originally called "CIFS" or SMB1).
+
+The CIFS VFS module for Linux supports many advanced network filesystem
+features such as hierarchical DFS like namespace, hardlinks, locking and more.
 It was designed to comply with the SNIA CIFS Technical Reference (which 
 supersedes the 1992 X/Open SMB Standard) as well as to perform best practice 
 practical interoperability with Windows 2000, Windows XP, Samba and equivalent 
 servers.  This code was developed in participation with the Protocol Freedom
-Information Foundation.
+Information Foundation.  CIFS and now SMB3 has now become a defacto
+standard for interoperating between Macs and Windows and major NAS appliances.
 
 Please see
   http://protocolfreedom.org/ and
@@ -15,30 +19,11 @@ for more details.
 For questions or bug reports please contact:
     sfrench@samba.org (sfrench@us.ibm.com) 
 
+See the project page at: https://wiki.samba.org/index.php/LinuxCIFS_utils
+
 Build instructions:
 ==================
-For Linux 2.4:
-1) Get the kernel source (e.g.from http://www.kernel.org)
-and download the cifs vfs source (see the project page
-at http://us1.samba.org/samba/Linux_CIFS_client.html)
-and change directory into the top of the kernel directory
-then patch the kernel (e.g. "patch -p1 < cifs_24.patch") 
-to add the cifs vfs to your kernel configure options if
-it has not already been added (e.g. current SuSE and UL
-users do not need to apply the cifs_24.patch since the cifs vfs is
-already in the kernel configure menu) and then
-mkdir linux/fs/cifs and then copy the current cifs vfs files from
-the cifs download to your kernel build directory e.g.
-
-	cp <cifs_download_dir>/fs/cifs/* to <kernel_download_dir>/fs/cifs
-	
-2) make menuconfig (or make xconfig)
-3) select cifs from within the network filesystem choices
-4) save and exit
-5) make dep
-6) make modules (or "make" if CIFS VFS not to be built as a module)
-
-For Linux 2.6:
+For Linux:
 1) Download the kernel (e.g. from http://www.kernel.org)
 and change directory into the top of the kernel directory tree
 (e.g. /usr/src/linux-2.5.73)
@@ -61,16 +46,13 @@ would simply type "make install").
 If you do not have the utility mount.cifs (in the Samba 3.0 source tree and on 
 the CIFS VFS web site) copy it to the same directory in which mount.smbfs and 
 similar files reside (usually /sbin).  Although the helper software is not  
-required, mount.cifs is recommended.  Eventually the Samba 3.0 utility program 
-"net" may also be helpful since it may someday provide easier mount syntax for
-users who are used to Windows e.g.
-	net use <mount point> <UNC name or cifs URL>
+required, mount.cifs is recommended.  Most distros include a "cifs-utils"
+package that includes this utility so it is recommended to install this.
+
 Note that running the Winbind pam/nss module (logon service) on all of your
 Linux clients is useful in mapping Uids and Gids consistently across the
 domain to the proper network user.  The mount.cifs mount helper can be
-trivially built from Samba 3.0 or later source e.g. by executing:
-
-	gcc samba/source/client/mount.cifs.c -o mount.cifs
+found at cifs-utils.git on git.samba.org
 
 If cifs is built as a module, then the size and number of network buffers
 and maximum number of simultaneous requests to one server can be configured.
@@ -79,6 +61,18 @@ Changing these from their defaults is not recommended. By executing modinfo
 on kernel/fs/cifs/cifs.ko the list of configuration changes that can be made
 at module initialization time (by running insmod cifs.ko) can be seen.
 
+Recommendations
+===============
+To improve security the SMB2.1 dialect or later (usually will get SMB3) is now
+the new default. To use old dialects (e.g. to mount Windows XP) use "vers=1.0"
+on mount (or vers=2.0 for Windows Vista).  Note that the CIFS (vers=1.0) is
+much older and less secure than the default dialect SMB3 which includes
+many advanced security features such as downgrade attack detection
+and encrypted shares and stronger signing and authentication algorithms.
+There are additional mount options that may be helpful for SMB3 to get
+improved POSIX behavior (NB: can use vers=3.0 to force only SMB3, never 2.1):
+     "mfsymlinks" and "cifsacl" and "idsfromsid"
+
 Allowing User Mounts
 ====================
 To permit users to mount and unmount over directories they own is possible
@@ -98,9 +92,7 @@ and execution of suid programs on the remote target would be enabled
 by default. This can be changed, as with nfs and other filesystems, 
 by simply specifying "nosuid" among the mount options. For user mounts 
 though to be able to pass the suid flag to mount requires rebuilding 
-mount.cifs with the following flag: 
- 
-        gcc samba/source/client/mount.cifs.c -DCIFS_ALLOW_USR_SUID -o mount.cifs
+mount.cifs with the following flag: CIFS_ALLOW_USR_SUID
 
 There is a corresponding manual page for cifs mounting in the Samba 3.0 and
 later source tree in docs/manpages/mount.cifs.8 
@@ -189,18 +181,18 @@ applications running on the same server as Samba.
 Use instructions:
 ================
 Once the CIFS VFS support is built into the kernel or installed as a module 
-(cifs.o), you can use mount syntax like the following to access Samba or Windows 
-servers: 
+(cifs.ko), you can use mount syntax like the following to access Samba or
+Mac or Windows servers:
 
-  mount -t cifs //9.53.216.11/e$ /mnt -o user=myname,pass=mypassword
+  mount -t cifs //9.53.216.11/e$ /mnt -o username=myname,password=mypassword
 
 Before -o the option -v may be specified to make the mount.cifs
 mount helper display the mount steps more verbosely.  
 After -o the following commonly used cifs vfs specific options
 are supported:
 
-  user=<username>
-  pass=<password>
+  username=<username>
+  password=<password>
   domain=<domain name>
   
 Other cifs mount options are described below.  Use of TCP names (in addition to
@@ -246,13 +238,16 @@ the Server's registry.  Samba starting with version 3.10 will allow such
 filenames (ie those which contain valid Linux characters, which normally
 would be forbidden for Windows/CIFS semantics) as long as the server is
 configured for Unix Extensions (and the client has not disabled
-/proc/fs/cifs/LinuxExtensionsEnabled).
-  
+/proc/fs/cifs/LinuxExtensionsEnabled). In addition the mount option
+"mapposix" can be used on CIFS (vers=1.0) to force the mapping of
+illegal Windows/NTFS/SMB characters to a remap range (this mount parm
+is the default for SMB3). This remap ("mapposix") range is also
+compatible with Mac (and "Services for Mac" on some older Windows).
 
 CIFS VFS Mount Options
 ======================
 A partial list of the supported mount options follows:
-  user		The user name to use when trying to establish
+  username	The user name to use when trying to establish
 		the CIFS session.
   password	The user password.  If the mount helper is
 		installed, the user will be prompted for password
diff --git a/Documentation/filesystems/cifs/TODO b/Documentation/filesystems/cifs/TODO
index 066ffddc3964..396ecfd6ff4a 100644
--- a/Documentation/filesystems/cifs/TODO
+++ b/Documentation/filesystems/cifs/TODO
@@ -1,4 +1,4 @@
-Version 2.03 August 1, 2014
+Version 2.04 September 13, 2017
 
 A Partial List of Missing Features
 ==================================
@@ -8,73 +8,69 @@ for visible, important contributions to this module.  Here
 is a partial list of the known problems and missing features:
 
 a) SMB3 (and SMB3.02) missing optional features:
-   - RDMA
+   - RDMA (started)
    - multichannel (started)
    - directory leases (improved metadata caching)
    - T10 copy offload (copy chunk is only mechanism supported)
-   - encrypted shares
 
 b) improved sparse file support
 
 c) Directory entry caching relies on a 1 second timer, rather than
-using FindNotify or equivalent.  - (started)
+using Directory Leases
 
 d) quota support (needs minor kernel change since quota calls
 to make it to network filesystems or deviceless filesystems)
 
-e) improve support for very old servers (OS/2 and Win9x for example)
-Including support for changing the time remotely (utimes command).
+e) Better optimize open to reduce redundant opens (using reference
+counts more) and to improve use of compounding in SMB3 to reduce
+number of roundtrips.
 
-f) hook lower into the sockets api (as NFS/SunRPC does) to avoid the
-extra copy in/out of the socket buffers in some cases.
-
-g) Better optimize open (and pathbased setfilesize) to reduce the
-oplock breaks coming from windows srv.  Piggyback identical file
-opens on top of each other by incrementing reference count rather
-than resending (helps reduce server resource utilization and avoid
-spurious oplock breaks).
-
-h) Add support for storing symlink info to Windows servers
-in the Extended Attribute format their SFU clients would recognize.
-
-i) Finish inotify support so kde and gnome file list windows
+f) Finish inotify support so kde and gnome file list windows
 will autorefresh (partially complete by Asser). Needs minor kernel
 vfs change to support removing D_NOTIFY on a file.   
 
-j) Add GUI tool to configure /proc/fs/cifs settings and for display of
+g) Add GUI tool to configure /proc/fs/cifs settings and for display of
 the CIFS statistics (started)
 
-k) implement support for security and trusted categories of xattrs
+h) implement support for security and trusted categories of xattrs
 (requires minor protocol extension) to enable better support for SELINUX
 
-l) Implement O_DIRECT flag on open (already supported on mount)
+i) Implement O_DIRECT flag on open (already supported on mount)
 
-m) Create UID mapping facility so server UIDs can be mapped on a per
+j) Create UID mapping facility so server UIDs can be mapped on a per
 mount or a per server basis to client UIDs or nobody if no mapping
-exists.  This is helpful when Unix extensions are negotiated to
-allow better permission checking when UIDs differ on the server
-and client.  Add new protocol request to the CIFS protocol 
-standard for asking the server for the corresponding name of a
-particular uid.
+exists. Also better integration with winbind for resolving SID owners
+
+k) Add tools to take advantage of more smb3 specific ioctls and features
+
+l) encrypted file support
+
+m) improved stats gathering, tools (perhaps integration with nfsometer?)
 
-n) DOS attrs - returned as pseudo-xattr in Samba format (check VFAT and NTFS for this too)
+n) allow setting more NTFS/SMB3 file attributes remotely (currently limited to compressed
+file attribute via chflags) and improve user space tools for managing and
+viewing them.
 
-o) mount check for unmatched uids
+o) mount helper GUI (to simplify the various configuration options on mount)
 
-p) Add support for new vfs entry point for fallocate
+p) autonegotiation of dialects (offering more than one dialect ie SMB3.02,
+SMB3, SMB2.1 not just SMB3).
 
-q) Add tools to take advantage of cifs/smb3 specific ioctls and features
-such as "CopyChunk" (fast server side file copy)
+q) Allow mount.cifs to be more verbose in reporting errors with dialect
+or unsupported feature errors.
 
-r) encrypted file support
+r) updating cifs documentation, and user guid.
 
-s) improved stats gathering, tools (perhaps integration with nfsometer?)
+s) Addressing bugs found by running a broader set of xfstests in standard
+file system xfstest suite.
 
-t) allow setting more NTFS/SMB3 file attributes remotely (currently limited to compressed
-file attribute via chflags)
+t) split cifs and smb3 support into separate modules so legacy (and less
+secure) CIFS dialect can be disabled in environments that don't need it
+and simplify the code.
 
-u) mount helper GUI (to simplify the various configuration options on mount)
+u) Finish up SMB3.1.1 dialect support
 
+v) POSIX Extensions for SMB3.1.1
 
 KNOWN BUGS
 ====================================
diff --git a/Documentation/filesystems/cifs/cifs.txt b/Documentation/filesystems/cifs/cifs.txt
index 2fac91ac96cf..67756607246e 100644
--- a/Documentation/filesystems/cifs/cifs.txt
+++ b/Documentation/filesystems/cifs/cifs.txt
@@ -1,24 +1,28 @@
-  This is the client VFS module for the Common Internet File System
-  (CIFS) protocol which is the successor to the Server Message Block 
+  This is the client VFS module for the SMB3 NAS protocol as well
+  older dialects such as the Common Internet File System (CIFS)
+  protocol which was the successor to the Server Message Block
   (SMB) protocol, the native file sharing mechanism for most early
   PC operating systems. New and improved versions of CIFS are now
   called SMB2 and SMB3. These dialects are also supported by the
   CIFS VFS module. CIFS is fully supported by network
-  file servers such as Windows 2000, 2003, 2008 and 2012
+  file servers such as Windows 2000, 2003, 2008, 2012 and 2016
   as well by Samba (which provides excellent CIFS
-  server support for Linux and many other operating systems), so
+  server support for Linux and many other operating systems), Apple
+  systems, as well as most Network Attached Storage vendors, so
   this network filesystem client can mount to a wide variety of
   servers.
 
   The intent of this module is to provide the most advanced network
-  file system function for CIFS compliant servers, including better
-  POSIX compliance, secure per-user session establishment, high
-  performance safe distributed caching (oplock), optional packet
+  file system function for SMB3 compliant servers, including advanced
+  security features, excellent parallelized high performance i/o, better
+  POSIX compliance, secure per-user session establishment, encryption,
+  high performance safe distributed caching (leases/oplocks), optional packet
   signing, large files, Unicode support and other internationalization
   improvements. Since both Samba server and this filesystem client support
-  the CIFS Unix extensions, the combination can provide a reasonable 
-  alternative to NFSv4 for fileserving in some Linux to Linux environments,
-  not just in Linux to Windows environments.
+  the CIFS Unix extensions (and in the future SMB3 POSIX extensions),
+  the combination can provide a reasonable alternative to other network and
+  cluster file systems for fileserving in some Linux to Linux environments,
+  not just in Linux to Windows (or Linux to Mac) environments.
 
   This filesystem has an mount utility (mount.cifs) that can be obtained from
 
diff --git a/Documentation/filesystems/dnotify.txt b/Documentation/filesystems/dnotify.txt
index 6baf88f46859..15156883d321 100644
--- a/Documentation/filesystems/dnotify.txt
+++ b/Documentation/filesystems/dnotify.txt
@@ -62,7 +62,7 @@ disabled, fcntl(fd, F_NOTIFY, ...) will return -EINVAL.
 
 Example
 -------
-See Documentation/filesystems/dnotify_test.c for an example.
+See tools/testing/selftests/filesystems/dnotify_test.c for an example.
 
 NOTE
 ----
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 5a8f7f4d2bca..75236c0c2ac2 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -94,10 +94,10 @@ Note: More extensive information for getting started with ext4 can be
 * ability to pack bitmaps and inode tables into larger virtual groups via the
   flex_bg feature
 * large file support
-* Inode allocation using large virtual block groups via flex_bg
+* inode allocation using large virtual block groups via flex_bg
 * delayed allocation
 * large block (up to pagesize) support
-* efficient new ordered mode in JBD2 and ext4(avoid using buffer head to force
+* efficient new ordered mode in JBD2 and ext4 (avoid using buffer head to force
   the ordering)
 
 [1] Filesystems with a block size of 1k may see a limit imposed by the
@@ -105,7 +105,7 @@ directory hash tree having a maximum depth of two.
 
 2.2 Candidate features for future inclusion
 
-* Online defrag (patches available but not well tested)
+* online defrag (patches available but not well tested)
 * reduced mke2fs time via lazy itable initialization in conjunction with
   the uninit_bg feature (capability to do this is available in e2fsprogs
   but a kernel thread to do lazy zeroing of unused inode table blocks
@@ -602,7 +602,7 @@ Table of Ext4 specific ioctls
 			      bitmaps and inode table, the userspace tool thus
 			      just passes the new number of blocks.
 
-EXT4_IOC_SWAP_BOOT	      Swap i_blocks and associated attributes
+ EXT4_IOC_SWAP_BOOT	      Swap i_blocks and associated attributes
 			      (like i_blocks, i_size, i_flags, ...) from
 			      the specified inode with inode
 			      EXT4_BOOT_LOADER_INO (#5). This is typically
diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst
new file mode 100644
index 000000000000..776ddc655f79
--- /dev/null
+++ b/Documentation/filesystems/fscrypt.rst
@@ -0,0 +1,610 @@
+=====================================
+Filesystem-level encryption (fscrypt)
+=====================================
+
+Introduction
+============
+
+fscrypt is a library which filesystems can hook into to support
+transparent encryption of files and directories.
+
+Note: "fscrypt" in this document refers to the kernel-level portion,
+implemented in ``fs/crypto/``, as opposed to the userspace tool
+`fscrypt <https://github.com/google/fscrypt>`_.  This document only
+covers the kernel-level portion.  For command-line examples of how to
+use encryption, see the documentation for the userspace tool `fscrypt
+<https://github.com/google/fscrypt>`_.  Also, it is recommended to use
+the fscrypt userspace tool, or other existing userspace tools such as
+`fscryptctl <https://github.com/google/fscryptctl>`_ or `Android's key
+management system
+<https://source.android.com/security/encryption/file-based>`_, over
+using the kernel's API directly.  Using existing tools reduces the
+chance of introducing your own security bugs.  (Nevertheless, for
+completeness this documentation covers the kernel's API anyway.)
+
+Unlike dm-crypt, fscrypt operates at the filesystem level rather than
+at the block device level.  This allows it to encrypt different files
+with different keys and to have unencrypted files on the same
+filesystem.  This is useful for multi-user systems where each user's
+data-at-rest needs to be cryptographically isolated from the others.
+However, except for filenames, fscrypt does not encrypt filesystem
+metadata.
+
+Unlike eCryptfs, which is a stacked filesystem, fscrypt is integrated
+directly into supported filesystems --- currently ext4, F2FS, and
+UBIFS.  This allows encrypted files to be read and written without
+caching both the decrypted and encrypted pages in the pagecache,
+thereby nearly halving the memory used and bringing it in line with
+unencrypted files.  Similarly, half as many dentries and inodes are
+needed.  eCryptfs also limits encrypted filenames to 143 bytes,
+causing application compatibility issues; fscrypt allows the full 255
+bytes (NAME_MAX).  Finally, unlike eCryptfs, the fscrypt API can be
+used by unprivileged users, with no need to mount anything.
+
+fscrypt does not support encrypting files in-place.  Instead, it
+supports marking an empty directory as encrypted.  Then, after
+userspace provides the key, all regular files, directories, and
+symbolic links created in that directory tree are transparently
+encrypted.
+
+Threat model
+============
+
+Offline attacks
+---------------
+
+Provided that userspace chooses a strong encryption key, fscrypt
+protects the confidentiality of file contents and filenames in the
+event of a single point-in-time permanent offline compromise of the
+block device content.  fscrypt does not protect the confidentiality of
+non-filename metadata, e.g. file sizes, file permissions, file
+timestamps, and extended attributes.  Also, the existence and location
+of holes (unallocated blocks which logically contain all zeroes) in
+files is not protected.
+
+fscrypt is not guaranteed to protect confidentiality or authenticity
+if an attacker is able to manipulate the filesystem offline prior to
+an authorized user later accessing the filesystem.
+
+Online attacks
+--------------
+
+fscrypt (and storage encryption in general) can only provide limited
+protection, if any at all, against online attacks.  In detail:
+
+fscrypt is only resistant to side-channel attacks, such as timing or
+electromagnetic attacks, to the extent that the underlying Linux
+Cryptographic API algorithms are.  If a vulnerable algorithm is used,
+such as a table-based implementation of AES, it may be possible for an
+attacker to mount a side channel attack against the online system.
+Side channel attacks may also be mounted against applications
+consuming decrypted data.
+
+After an encryption key has been provided, fscrypt is not designed to
+hide the plaintext file contents or filenames from other users on the
+same system, regardless of the visibility of the keyring key.
+Instead, existing access control mechanisms such as file mode bits,
+POSIX ACLs, LSMs, or mount namespaces should be used for this purpose.
+Also note that as long as the encryption keys are *anywhere* in
+memory, an online attacker can necessarily compromise them by mounting
+a physical attack or by exploiting any kernel security vulnerability
+which provides an arbitrary memory read primitive.
+
+While it is ostensibly possible to "evict" keys from the system,
+recently accessed encrypted files will remain accessible at least
+until the filesystem is unmounted or the VFS caches are dropped, e.g.
+using ``echo 2 > /proc/sys/vm/drop_caches``.  Even after that, if the
+RAM is compromised before being powered off, it will likely still be
+possible to recover portions of the plaintext file contents, if not
+some of the encryption keys as well.  (Since Linux v4.12, all
+in-kernel keys related to fscrypt are sanitized before being freed.
+However, userspace would need to do its part as well.)
+
+Currently, fscrypt does not prevent a user from maliciously providing
+an incorrect key for another user's existing encrypted files.  A
+protection against this is planned.
+
+Key hierarchy
+=============
+
+Master Keys
+-----------
+
+Each encrypted directory tree is protected by a *master key*.  Master
+keys can be up to 64 bytes long, and must be at least as long as the
+greater of the key length needed by the contents and filenames
+encryption modes being used.  For example, if AES-256-XTS is used for
+contents encryption, the master key must be 64 bytes (512 bits).  Note
+that the XTS mode is defined to require a key twice as long as that
+required by the underlying block cipher.
+
+To "unlock" an encrypted directory tree, userspace must provide the
+appropriate master key.  There can be any number of master keys, each
+of which protects any number of directory trees on any number of
+filesystems.
+
+Userspace should generate master keys either using a cryptographically
+secure random number generator, or by using a KDF (Key Derivation
+Function).  Note that whenever a KDF is used to "stretch" a
+lower-entropy secret such as a passphrase, it is critical that a KDF
+designed for this purpose be used, such as scrypt, PBKDF2, or Argon2.
+
+Per-file keys
+-------------
+
+Master keys are not used to encrypt file contents or names directly.
+Instead, a unique key is derived for each encrypted file, including
+each regular file, directory, and symbolic link.  This has several
+advantages:
+
+- In cryptosystems, the same key material should never be used for
+  different purposes.  Using the master key as both an XTS key for
+  contents encryption and as a CTS-CBC key for filenames encryption
+  would violate this rule.
+- Per-file keys simplify the choice of IVs (Initialization Vectors)
+  for contents encryption.  Without per-file keys, to ensure IV
+  uniqueness both the inode and logical block number would need to be
+  encoded in the IVs.  This would make it impossible to renumber
+  inodes, which e.g. ``resize2fs`` can do when resizing an ext4
+  filesystem.  With per-file keys, it is sufficient to encode just the
+  logical block number in the IVs.
+- Per-file keys strengthen the encryption of filenames, where IVs are
+  reused out of necessity.  With a unique key per directory, IV reuse
+  is limited to within a single directory.
+- Per-file keys allow individual files to be securely erased simply by
+  securely erasing their keys.  (Not yet implemented.)
+
+A KDF (Key Derivation Function) is used to derive per-file keys from
+the master key.  This is done instead of wrapping a randomly-generated
+key for each file because it reduces the size of the encryption xattr,
+which for some filesystems makes the xattr more likely to fit in-line
+in the filesystem's inode table.  With a KDF, only a 16-byte nonce is
+required --- long enough to make key reuse extremely unlikely.  A
+wrapped key, on the other hand, would need to be up to 64 bytes ---
+the length of an AES-256-XTS key.  Furthermore, currently there is no
+requirement to support unlocking a file with multiple alternative
+master keys or to support rotating master keys.  Instead, the master
+keys may be wrapped in userspace, e.g. as done by the `fscrypt
+<https://github.com/google/fscrypt>`_ tool.
+
+The current KDF encrypts the master key using the 16-byte nonce as an
+AES-128-ECB key.  The output is used as the derived key.  If the
+output is longer than needed, then it is truncated to the needed
+length.  Truncation is the norm for directories and symlinks, since
+those use the CTS-CBC encryption mode which requires a key half as
+long as that required by the XTS encryption mode.
+
+Note: this KDF meets the primary security requirement, which is to
+produce unique derived keys that preserve the entropy of the master
+key, assuming that the master key is already a good pseudorandom key.
+However, it is nonstandard and has some problems such as being
+reversible, so it is generally considered to be a mistake!  It may be
+replaced with HKDF or another more standard KDF in the future.
+
+Encryption modes and usage
+==========================
+
+fscrypt allows one encryption mode to be specified for file contents
+and one encryption mode to be specified for filenames.  Different
+directory trees are permitted to use different encryption modes.
+Currently, the following pairs of encryption modes are supported:
+
+- AES-256-XTS for contents and AES-256-CTS-CBC for filenames
+- AES-128-CBC for contents and AES-128-CTS-CBC for filenames
+
+It is strongly recommended to use AES-256-XTS for contents encryption.
+AES-128-CBC was added only for low-powered embedded devices with
+crypto accelerators such as CAAM or CESA that do not support XTS.
+
+New encryption modes can be added relatively easily, without changes
+to individual filesystems.  However, authenticated encryption (AE)
+modes are not currently supported because of the difficulty of dealing
+with ciphertext expansion.
+
+For file contents, each filesystem block is encrypted independently.
+Currently, only the case where the filesystem block size is equal to
+the system's page size (usually 4096 bytes) is supported.  With the
+XTS mode of operation (recommended), the logical block number within
+the file is used as the IV.  With the CBC mode of operation (not
+recommended), ESSIV is used; specifically, the IV for CBC is the
+logical block number encrypted with AES-256, where the AES-256 key is
+the SHA-256 hash of the inode's data encryption key.
+
+For filenames, the full filename is encrypted at once.  Because of the
+requirements to retain support for efficient directory lookups and
+filenames of up to 255 bytes, a constant initialization vector (IV) is
+used.  However, each encrypted directory uses a unique key, which
+limits IV reuse to within a single directory.  Note that IV reuse in
+the context of CTS-CBC encryption means that when the original
+filenames share a common prefix at least as long as the cipher block
+size (16 bytes for AES), the corresponding encrypted filenames will
+also share a common prefix.  This is undesirable; it may be fixed in
+the future by switching to an encryption mode that is a strong
+pseudorandom permutation on arbitrary-length messages, e.g. the HEH
+(Hash-Encrypt-Hash) mode.
+
+Since filenames are encrypted with the CTS-CBC mode of operation, the
+plaintext and ciphertext filenames need not be multiples of the AES
+block size, i.e. 16 bytes.  However, the minimum size that can be
+encrypted is 16 bytes, so shorter filenames are NUL-padded to 16 bytes
+before being encrypted.  In addition, to reduce leakage of filename
+lengths via their ciphertexts, all filenames are NUL-padded to the
+next 4, 8, 16, or 32-byte boundary (configurable).  32 is recommended
+since this provides the best confidentiality, at the cost of making
+directory entries consume slightly more space.  Note that since NUL
+(``\0``) is not otherwise a valid character in filenames, the padding
+will never produce duplicate plaintexts.
+
+Symbolic link targets are considered a type of filename and are
+encrypted in the same way as filenames in directory entries.  Each
+symlink also uses a unique key; hence, the hardcoded IV is not a
+problem for symlinks.
+
+User API
+========
+
+Setting an encryption policy
+----------------------------
+
+The FS_IOC_SET_ENCRYPTION_POLICY ioctl sets an encryption policy on an
+empty directory or verifies that a directory or regular file already
+has the specified encryption policy.  It takes in a pointer to a
+:c:type:`struct fscrypt_policy`, defined as follows::
+
+    #define FS_KEY_DESCRIPTOR_SIZE  8
+
+    struct fscrypt_policy {
+            __u8 version;
+            __u8 contents_encryption_mode;
+            __u8 filenames_encryption_mode;
+            __u8 flags;
+            __u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+    };
+
+This structure must be initialized as follows:
+
+- ``version`` must be 0.
+
+- ``contents_encryption_mode`` and ``filenames_encryption_mode`` must
+  be set to constants from ``<linux/fs.h>`` which identify the
+  encryption modes to use.  If unsure, use
+  FS_ENCRYPTION_MODE_AES_256_XTS (1) for ``contents_encryption_mode``
+  and FS_ENCRYPTION_MODE_AES_256_CTS (4) for
+  ``filenames_encryption_mode``.
+
+- ``flags`` must be set to a value from ``<linux/fs.h>`` which
+  identifies the amount of NUL-padding to use when encrypting
+  filenames.  If unsure, use FS_POLICY_FLAGS_PAD_32 (0x3).
+
+- ``master_key_descriptor`` specifies how to find the master key in
+  the keyring; see `Adding keys`_.  It is up to userspace to choose a
+  unique ``master_key_descriptor`` for each master key.  The e4crypt
+  and fscrypt tools use the first 8 bytes of
+  ``SHA-512(SHA-512(master_key))``, but this particular scheme is not
+  required.  Also, the master key need not be in the keyring yet when
+  FS_IOC_SET_ENCRYPTION_POLICY is executed.  However, it must be added
+  before any files can be created in the encrypted directory.
+
+If the file is not yet encrypted, then FS_IOC_SET_ENCRYPTION_POLICY
+verifies that the file is an empty directory.  If so, the specified
+encryption policy is assigned to the directory, turning it into an
+encrypted directory.  After that, and after providing the
+corresponding master key as described in `Adding keys`_, all regular
+files, directories (recursively), and symlinks created in the
+directory will be encrypted, inheriting the same encryption policy.
+The filenames in the directory's entries will be encrypted as well.
+
+Alternatively, if the file is already encrypted, then
+FS_IOC_SET_ENCRYPTION_POLICY validates that the specified encryption
+policy exactly matches the actual one.  If they match, then the ioctl
+returns 0.  Otherwise, it fails with EEXIST.  This works on both
+regular files and directories, including nonempty directories.
+
+Note that the ext4 filesystem does not allow the root directory to be
+encrypted, even if it is empty.  Users who want to encrypt an entire
+filesystem with one key should consider using dm-crypt instead.
+
+FS_IOC_SET_ENCRYPTION_POLICY can fail with the following errors:
+
+- ``EACCES``: the file is not owned by the process's uid, nor does the
+  process have the CAP_FOWNER capability in a namespace with the file
+  owner's uid mapped
+- ``EEXIST``: the file is already encrypted with an encryption policy
+  different from the one specified
+- ``EINVAL``: an invalid encryption policy was specified (invalid
+  version, mode(s), or flags)
+- ``ENOTDIR``: the file is unencrypted and is a regular file, not a
+  directory
+- ``ENOTEMPTY``: the file is unencrypted and is a nonempty directory
+- ``ENOTTY``: this type of filesystem does not implement encryption
+- ``EOPNOTSUPP``: the kernel was not configured with encryption
+  support for this filesystem, or the filesystem superblock has not
+  had encryption enabled on it.  (For example, to use encryption on an
+  ext4 filesystem, CONFIG_EXT4_ENCRYPTION must be enabled in the
+  kernel config, and the superblock must have had the "encrypt"
+  feature flag enabled using ``tune2fs -O encrypt`` or ``mkfs.ext4 -O
+  encrypt``.)
+- ``EPERM``: this directory may not be encrypted, e.g. because it is
+  the root directory of an ext4 filesystem
+- ``EROFS``: the filesystem is readonly
+
+Getting an encryption policy
+----------------------------
+
+The FS_IOC_GET_ENCRYPTION_POLICY ioctl retrieves the :c:type:`struct
+fscrypt_policy`, if any, for a directory or regular file.  See above
+for the struct definition.  No additional permissions are required
+beyond the ability to open the file.
+
+FS_IOC_GET_ENCRYPTION_POLICY can fail with the following errors:
+
+- ``EINVAL``: the file is encrypted, but it uses an unrecognized
+  encryption context format
+- ``ENODATA``: the file is not encrypted
+- ``ENOTTY``: this type of filesystem does not implement encryption
+- ``EOPNOTSUPP``: the kernel was not configured with encryption
+  support for this filesystem
+
+Note: if you only need to know whether a file is encrypted or not, on
+most filesystems it is also possible to use the FS_IOC_GETFLAGS ioctl
+and check for FS_ENCRYPT_FL, or to use the statx() system call and
+check for STATX_ATTR_ENCRYPTED in stx_attributes.
+
+Getting the per-filesystem salt
+-------------------------------
+
+Some filesystems, such as ext4 and F2FS, also support the deprecated
+ioctl FS_IOC_GET_ENCRYPTION_PWSALT.  This ioctl retrieves a randomly
+generated 16-byte value stored in the filesystem superblock.  This
+value is intended to used as a salt when deriving an encryption key
+from a passphrase or other low-entropy user credential.
+
+FS_IOC_GET_ENCRYPTION_PWSALT is deprecated.  Instead, prefer to
+generate and manage any needed salt(s) in userspace.
+
+Adding keys
+-----------
+
+To provide a master key, userspace must add it to an appropriate
+keyring using the add_key() system call (see:
+``Documentation/security/keys/core.rst``).  The key type must be
+"logon"; keys of this type are kept in kernel memory and cannot be
+read back by userspace.  The key description must be "fscrypt:"
+followed by the 16-character lower case hex representation of the
+``master_key_descriptor`` that was set in the encryption policy.  The
+key payload must conform to the following structure::
+
+    #define FS_MAX_KEY_SIZE 64
+
+    struct fscrypt_key {
+            u32 mode;
+            u8 raw[FS_MAX_KEY_SIZE];
+            u32 size;
+    };
+
+``mode`` is ignored; just set it to 0.  The actual key is provided in
+``raw`` with ``size`` indicating its size in bytes.  That is, the
+bytes ``raw[0..size-1]`` (inclusive) are the actual key.
+
+The key description prefix "fscrypt:" may alternatively be replaced
+with a filesystem-specific prefix such as "ext4:".  However, the
+filesystem-specific prefixes are deprecated and should not be used in
+new programs.
+
+There are several different types of keyrings in which encryption keys
+may be placed, such as a session keyring, a user session keyring, or a
+user keyring.  Each key must be placed in a keyring that is "attached"
+to all processes that might need to access files encrypted with it, in
+the sense that request_key() will find the key.  Generally, if only
+processes belonging to a specific user need to access a given
+encrypted directory and no session keyring has been installed, then
+that directory's key should be placed in that user's user session
+keyring or user keyring.  Otherwise, a session keyring should be
+installed if needed, and the key should be linked into that session
+keyring, or in a keyring linked into that session keyring.
+
+Note: introducing the complex visibility semantics of keyrings here
+was arguably a mistake --- especially given that by design, after any
+process successfully opens an encrypted file (thereby setting up the
+per-file key), possessing the keyring key is not actually required for
+any process to read/write the file until its in-memory inode is
+evicted.  In the future there probably should be a way to provide keys
+directly to the filesystem instead, which would make the intended
+semantics clearer.
+
+Access semantics
+================
+
+With the key
+------------
+
+With the encryption key, encrypted regular files, directories, and
+symlinks behave very similarly to their unencrypted counterparts ---
+after all, the encryption is intended to be transparent.  However,
+astute users may notice some differences in behavior:
+
+- Unencrypted files, or files encrypted with a different encryption
+  policy (i.e. different key, modes, or flags), cannot be renamed or
+  linked into an encrypted directory; see `Encryption policy
+  enforcement`_.  Attempts to do so will fail with EPERM.  However,
+  encrypted files can be renamed within an encrypted directory, or
+  into an unencrypted directory.
+
+- Direct I/O is not supported on encrypted files.  Attempts to use
+  direct I/O on such files will fall back to buffered I/O.
+
+- The fallocate operations FALLOC_FL_COLLAPSE_RANGE,
+  FALLOC_FL_INSERT_RANGE, and FALLOC_FL_ZERO_RANGE are not supported
+  on encrypted files and will fail with EOPNOTSUPP.
+
+- Online defragmentation of encrypted files is not supported.  The
+  EXT4_IOC_MOVE_EXT and F2FS_IOC_MOVE_RANGE ioctls will fail with
+  EOPNOTSUPP.
+
+- The ext4 filesystem does not support data journaling with encrypted
+  regular files.  It will fall back to ordered data mode instead.
+
+- DAX (Direct Access) is not supported on encrypted files.
+
+- The st_size of an encrypted symlink will not necessarily give the
+  length of the symlink target as required by POSIX.  It will actually
+  give the length of the ciphertext, which may be slightly longer than
+  the plaintext due to the NUL-padding.
+
+Note that mmap *is* supported.  This is possible because the pagecache
+for an encrypted file contains the plaintext, not the ciphertext.
+
+Without the key
+---------------
+
+Some filesystem operations may be performed on encrypted regular
+files, directories, and symlinks even before their encryption key has
+been provided:
+
+- File metadata may be read, e.g. using stat().
+
+- Directories may be listed, in which case the filenames will be
+  listed in an encoded form derived from their ciphertext.  The
+  current encoding algorithm is described in `Filename hashing and
+  encoding`_.  The algorithm is subject to change, but it is
+  guaranteed that the presented filenames will be no longer than
+  NAME_MAX bytes, will not contain the ``/`` or ``\0`` characters, and
+  will uniquely identify directory entries.
+
+  The ``.`` and ``..`` directory entries are special.  They are always
+  present and are not encrypted or encoded.
+
+- Files may be deleted.  That is, nondirectory files may be deleted
+  with unlink() as usual, and empty directories may be deleted with
+  rmdir() as usual.  Therefore, ``rm`` and ``rm -r`` will work as
+  expected.
+
+- Symlink targets may be read and followed, but they will be presented
+  in encrypted form, similar to filenames in directories.  Hence, they
+  are unlikely to point to anywhere useful.
+
+Without the key, regular files cannot be opened or truncated.
+Attempts to do so will fail with ENOKEY.  This implies that any
+regular file operations that require a file descriptor, such as
+read(), write(), mmap(), fallocate(), and ioctl(), are also forbidden.
+
+Also without the key, files of any type (including directories) cannot
+be created or linked into an encrypted directory, nor can a name in an
+encrypted directory be the source or target of a rename, nor can an
+O_TMPFILE temporary file be created in an encrypted directory.  All
+such operations will fail with ENOKEY.
+
+It is not currently possible to backup and restore encrypted files
+without the encryption key.  This would require special APIs which
+have not yet been implemented.
+
+Encryption policy enforcement
+=============================
+
+After an encryption policy has been set on a directory, all regular
+files, directories, and symbolic links created in that directory
+(recursively) will inherit that encryption policy.  Special files ---
+that is, named pipes, device nodes, and UNIX domain sockets --- will
+not be encrypted.
+
+Except for those special files, it is forbidden to have unencrypted
+files, or files encrypted with a different encryption policy, in an
+encrypted directory tree.  Attempts to link or rename such a file into
+an encrypted directory will fail with EPERM.  This is also enforced
+during ->lookup() to provide limited protection against offline
+attacks that try to disable or downgrade encryption in known locations
+where applications may later write sensitive data.  It is recommended
+that systems implementing a form of "verified boot" take advantage of
+this by validating all top-level encryption policies prior to access.
+
+Implementation details
+======================
+
+Encryption context
+------------------
+
+An encryption policy is represented on-disk by a :c:type:`struct
+fscrypt_context`.  It is up to individual filesystems to decide where
+to store it, but normally it would be stored in a hidden extended
+attribute.  It should *not* be exposed by the xattr-related system
+calls such as getxattr() and setxattr() because of the special
+semantics of the encryption xattr.  (In particular, there would be
+much confusion if an encryption policy were to be added to or removed
+from anything other than an empty directory.)  The struct is defined
+as follows::
+
+    #define FS_KEY_DESCRIPTOR_SIZE  8
+    #define FS_KEY_DERIVATION_NONCE_SIZE 16
+
+    struct fscrypt_context {
+            u8 format;
+            u8 contents_encryption_mode;
+            u8 filenames_encryption_mode;
+            u8 flags;
+            u8 master_key_descriptor[FS_KEY_DESCRIPTOR_SIZE];
+            u8 nonce[FS_KEY_DERIVATION_NONCE_SIZE];
+    };
+
+Note that :c:type:`struct fscrypt_context` contains the same
+information as :c:type:`struct fscrypt_policy` (see `Setting an
+encryption policy`_), except that :c:type:`struct fscrypt_context`
+also contains a nonce.  The nonce is randomly generated by the kernel
+and is used to derive the inode's encryption key as described in
+`Per-file keys`_.
+
+Data path changes
+-----------------
+
+For the read path (->readpage()) of regular files, filesystems can
+read the ciphertext into the page cache and decrypt it in-place.  The
+page lock must be held until decryption has finished, to prevent the
+page from becoming visible to userspace prematurely.
+
+For the write path (->writepage()) of regular files, filesystems
+cannot encrypt data in-place in the page cache, since the cached
+plaintext must be preserved.  Instead, filesystems must encrypt into a
+temporary buffer or "bounce page", then write out the temporary
+buffer.  Some filesystems, such as UBIFS, already use temporary
+buffers regardless of encryption.  Other filesystems, such as ext4 and
+F2FS, have to allocate bounce pages specially for encryption.
+
+Filename hashing and encoding
+-----------------------------
+
+Modern filesystems accelerate directory lookups by using indexed
+directories.  An indexed directory is organized as a tree keyed by
+filename hashes.  When a ->lookup() is requested, the filesystem
+normally hashes the filename being looked up so that it can quickly
+find the corresponding directory entry, if any.
+
+With encryption, lookups must be supported and efficient both with and
+without the encryption key.  Clearly, it would not work to hash the
+plaintext filenames, since the plaintext filenames are unavailable
+without the key.  (Hashing the plaintext filenames would also make it
+impossible for the filesystem's fsck tool to optimize encrypted
+directories.)  Instead, filesystems hash the ciphertext filenames,
+i.e. the bytes actually stored on-disk in the directory entries.  When
+asked to do a ->lookup() with the key, the filesystem just encrypts
+the user-supplied name to get the ciphertext.
+
+Lookups without the key are more complicated.  The raw ciphertext may
+contain the ``\0`` and ``/`` characters, which are illegal in
+filenames.  Therefore, readdir() must base64-encode the ciphertext for
+presentation.  For most filenames, this works fine; on ->lookup(), the
+filesystem just base64-decodes the user-supplied name to get back to
+the raw ciphertext.
+
+However, for very long filenames, base64 encoding would cause the
+filename length to exceed NAME_MAX.  To prevent this, readdir()
+actually presents long filenames in an abbreviated form which encodes
+a strong "hash" of the ciphertext filename, along with the optional
+filesystem-specific hash(es) needed for directory lookups.  This
+allows the filesystem to still, with a high degree of confidence, map
+the filename given in ->lookup() back to a particular directory entry
+that was previously listed by readdir().  See :c:type:`struct
+fscrypt_digested_name` in the source for more details.
+
+Note that the precise way that filenames are presented to userspace
+without the key is subject to change in the future.  It is only meant
+as a way to temporarily present valid filenames so that commands like
+``rm -r`` work as expected on encrypted directories.
diff --git a/Documentation/filesystems/index.rst b/Documentation/filesystems/index.rst
index 256e10eedba4..53b89d0edc15 100644
--- a/Documentation/filesystems/index.rst
+++ b/Documentation/filesystems/index.rst
@@ -315,3 +315,14 @@ exported for use by modules.
    :internal:
 
 .. kernel-doc:: fs/pipe.c
+
+Encryption API
+==============
+
+A library which filesystems can hook into to support transparent
+encryption of files and directories.
+
+.. toctree::
+    :maxdepth: 2
+
+    fscrypt
diff --git a/Documentation/filesystems/orangefs.txt b/Documentation/filesystems/orangefs.txt
index 1dfdec790946..e2818b60a5c2 100644
--- a/Documentation/filesystems/orangefs.txt
+++ b/Documentation/filesystems/orangefs.txt
@@ -45,14 +45,11 @@ upstream version of the kernel client.
 BUILDING THE USERSPACE FILESYSTEM ON A SINGLE SERVER
 ====================================================
 
-When Orangefs is upstream, "--with-kernel" shouldn't be needed, but
-until then the path to where the kernel with the Orangefs kernel client
-patch was built is needed to ensure that pvfs2-client-core (the bridge
-between kernel space and user space) will build properly. You can omit
---prefix if you don't care that things are sprinkled around in
-/usr/local.
+You can omit --prefix if you don't care that things are sprinkled around in
+/usr/local. As of version 2.9.6, Orangefs uses Berkeley DB by default, we
+will probably be changing the default to lmdb soon.
 
-./configure --prefix=/opt/ofs --with-kernel=/path/to/orangefs/kernel
+./configure --prefix=/opt/ofs --with-db-backend=lmdb
 
 make
 
@@ -82,9 +79,6 @@ prove things are working with:
 
 /opt/osf/bin/pvfs2-ls /mymountpoint
 
-You might not want to enforce selinux, it doesn't seem to matter by
-linux 3.11...
-
 If stuff seems to be working, turn on the client core:
 /opt/osf/sbin/pvfs2-client -p /opt/osf/sbin/pvfs2-client-core
 
diff --git a/Documentation/filesystems/overlayfs.txt b/Documentation/filesystems/overlayfs.txt
index 36f528a7fdd6..8caa60734647 100644
--- a/Documentation/filesystems/overlayfs.txt
+++ b/Documentation/filesystems/overlayfs.txt
@@ -210,8 +210,11 @@ path as another overlay mount and it may use a lower layer path that is
 beneath or above the path of another overlay lower layer path.
 
 Using an upper layer path and/or a workdir path that are already used by
-another overlay mount is not allowed and will fail with EBUSY.  Using
+another overlay mount is not allowed and may fail with EBUSY.  Using
 partially overlapping paths is not allowed but will not fail with EBUSY.
+If files are accessed from two overlayfs mounts which share or overlap the
+upper layer and/or workdir path the behavior of the overlay is undefined,
+though it will not result in a crash or deadlock.
 
 Mounting an overlay using an upper layer path, where the upper layer path
 was previously used by another mounted overlay in combination with a
diff --git a/Documentation/filesystems/path-lookup.md b/Documentation/filesystems/path-lookup.md
index 1b39e084a2b2..1933ef734e63 100644
--- a/Documentation/filesystems/path-lookup.md
+++ b/Documentation/filesystems/path-lookup.md
@@ -826,9 +826,9 @@ If the filesystem may need to revalidate dcache entries, then
 *is* passed the dentry but does not have access to the `inode` or the
 `seq` number from the `nameidata`, so it needs to be extra careful
 when accessing fields in the dentry.  This "extra care" typically
-involves using `ACCESS_ONCE()` or the newer [`READ_ONCE()`] to access
-fields, and verifying the result is not NULL before using it.  This
-pattern can be see in `nfs_lookup_revalidate()`.
+involves using [`READ_ONCE()`] to access fields, and verifying the
+result is not NULL before using it.  This pattern can be seen in
+`nfs_lookup_revalidate()`.
 
 A pair of patterns
 ------------------
diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index 5fb17f49f7a2..93e0a2404532 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -228,7 +228,7 @@ anything from oops to silent memory corruption.
 ---
 [mandatory]
 
-	FS_NOMOUNT is gone.  If you use it - just set MS_NOUSER in flags
+	FS_NOMOUNT is gone.  If you use it - just set SB_NOUSER in flags
 (see rootfs for one kind of solution and bdev/socket/pipe for another).
 
 ---
diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt
index 24da7b32c489..9a3658cc399e 100644
--- a/Documentation/filesystems/sysfs.txt
+++ b/Documentation/filesystems/sysfs.txt
@@ -366,7 +366,8 @@ struct driver_attribute {
 
 Declaring:
 
-DRIVER_ATTR(_name, _mode, _show, _store)
+DRIVER_ATTR_RO(_name)
+DRIVER_ATTR_RW(_name)
 
 Creation/Removal:
 
diff --git a/Documentation/filesystems/udf.txt b/Documentation/filesystems/udf.txt
index 902b95d0ee51..d3d0e3218f86 100644
--- a/Documentation/filesystems/udf.txt
+++ b/Documentation/filesystems/udf.txt
@@ -1,11 +1,9 @@
 *
 * Documentation/filesystems/udf.txt
 *
-UDF Filesystem version 0.9.8.1
 
 If you encounter problems with reading UDF discs using this driver,
-please report them to linux_udf@hpesjro.fc.hp.com, which is the
-developer's list.
+please report them according to MAINTAINERS file.
 
 Write support requires a block driver which supports writing.  Currently
 dvd+rw drives and media support true random sector writes, and so a udf
@@ -73,10 +71,8 @@ The following expect a offset from the partition root.
 
 
 For the latest version and toolset see:
-	http://linux-udf.sourceforge.net/
+	https://github.com/pali/udftools
 
 Documentation on UDF and ECMA 167 is available FREE from:
 	http://www.osta.org/
 	http://www.ecma-international.org/
-
-Ben Fennema <bfennema@falcon.csc.calpoly.edu>
diff --git a/Documentation/hid/hiddev.txt b/Documentation/hid/hiddev.txt
index 6e8c9f1d2f22..638448707aa2 100644
--- a/Documentation/hid/hiddev.txt
+++ b/Documentation/hid/hiddev.txt
@@ -12,7 +12,7 @@ To support these disparate requirements, the Linux USB system provides
 HID events to two separate interfaces:
 * the input subsystem, which converts HID events into normal input
 device interfaces (such as keyboard, mouse and joystick) and a
-normalised event interface - see Documentation/input/input.txt
+normalised event interface - see Documentation/input/input.rst
 * the hiddev interface, which provides fairly raw HID events
 
 The data flow for a HID event produced by a device is something like
diff --git a/Documentation/hwmon/max31785 b/Documentation/hwmon/max31785
new file mode 100644
index 000000000000..45fb6093dec2
--- /dev/null
+++ b/Documentation/hwmon/max31785
@@ -0,0 +1,51 @@
+Kernel driver max31785
+======================
+
+Supported chips:
+  * Maxim MAX31785, MAX31785A
+    Prefix: 'max31785' or 'max31785a'
+    Addresses scanned: -
+    Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX31785.pdf
+
+Author: Andrew Jeffery <andrew@aj.id.au>
+
+Description
+-----------
+
+The Maxim MAX31785 is a PMBus device providing closed-loop, multi-channel fan
+management with temperature and remote voltage sensing. Various fan control
+features are provided, including PWM frequency control, temperature hysteresis,
+dual tachometer measurements, and fan health monitoring.
+
+For dual rotor fan configuration, the MAX31785 exposes the slowest rotor of the
+two in the fan[1-4]_input attributes.
+
+Usage Notes
+-----------
+
+This driver does not probe for PMBus devices. You will have to instantiate
+devices explicitly.
+
+Sysfs attributes
+----------------
+
+fan[1-4]_alarm		Fan alarm.
+fan[1-4]_fault		Fan fault.
+fan[1-4]_input		Fan RPM.
+
+in[1-6]_crit		Critical maximum output voltage
+in[1-6]_crit_alarm	Output voltage critical high alarm
+in[1-6]_input		Measured output voltage
+in[1-6]_label		"vout[18-23]"
+in[1-6]_lcrit		Critical minimum output voltage
+in[1-6]_lcrit_alarm	Output voltage critical low alarm
+in[1-6]_max		Maximum output voltage
+in[1-6]_max_alarm	Output voltage high alarm
+in[1-6]_min		Minimum output voltage
+in[1-6]_min_alarm	Output voltage low alarm
+
+temp[1-11]_crit		Critical high temperature
+temp[1-11]_crit_alarm	Chip temperature critical high alarm
+temp[1-11]_input	Measured temperature
+temp[1-11]_max		Maximum temperature
+temp[1-11]_max_alarm	Chip temperature high alarm
diff --git a/Documentation/hwmon/sht15 b/Documentation/hwmon/sht15
index 778987d1856f..5e3207c3b177 100644
--- a/Documentation/hwmon/sht15
+++ b/Documentation/hwmon/sht15
@@ -42,8 +42,7 @@ chip. These coefficients are used to internally calibrate the signals from the
 sensors. Disabling the reload of those coefficients allows saving 10ms for each
 measurement and decrease power consumption, while losing on precision.
 
-Some options may be set directly in the sht15_platform_data structure
-or via sysfs attributes.
+Some options may be set via sysfs attributes.
 
 Notes:
   * The regulator supply name is set to "vcc".
diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index 0500193434cb..d47702456926 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -36,6 +36,7 @@ Supported adapters:
   * Intel Gemini Lake (SOC)
   * Intel Cannon Lake-H (PCH)
   * Intel Cannon Lake-LP (PCH)
+  * Intel Cedar Fork (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff --git a/Documentation/input/devices/xpad.rst b/Documentation/input/devices/xpad.rst
index 5a709ab77c8d..b8bd65962dd8 100644
--- a/Documentation/input/devices/xpad.rst
+++ b/Documentation/input/devices/xpad.rst
@@ -230,4 +230,5 @@ Historic Edits
 2005-03-19 - Dominic Cerquetti <binary1230@yahoo.com>
  - added stuff for dance pads, new d-pad->axes mappings
 
-Later changes may be viewed with 'git log Documentation/input/xpad.txt'
+Later changes may be viewed with
+'git log --follow Documentation/input/devices/xpad.rst'
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 329e740adea7..f6f80380dff2 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -1108,14 +1108,6 @@ When kbuild executes, the following steps are followed (roughly):
     ld
 	Link target. Often, LDFLAGS_$@ is used to set specific options to ld.
 
-    objcopy
-	Copy binary. Uses OBJCOPYFLAGS usually specified in
-	arch/$(ARCH)/Makefile.
-	OBJCOPYFLAGS_$@ may be used to set additional options.
-
-    gzip
-	Compress target. Use maximum compression to compress target.
-
 	Example:
 		#arch/x86/boot/Makefile
 		LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary
@@ -1139,6 +1131,19 @@ When kbuild executes, the following steps are followed (roughly):
 	      resulting in the target file being recompiled for no
 	      obvious reason.
 
+    objcopy
+	Copy binary. Uses OBJCOPYFLAGS usually specified in
+	arch/$(ARCH)/Makefile.
+	OBJCOPYFLAGS_$@ may be used to set additional options.
+
+    gzip
+	Compress target. Use maximum compression to compress target.
+
+	Example:
+		#arch/x86/boot/compressed/Makefile
+		$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
+			$(call if_changed,gzip)
+
     dtc
 	Create flattened device tree blob object suitable for linking
 	into vmlinux. Device tree blobs linked into vmlinux are placed
@@ -1219,7 +1224,7 @@ When kbuild executes, the following steps are followed (roughly):
 	that may be shared between individual architectures.
 	The recommended approach how to use a generic header file is
 	to list the file in the Kbuild file.
-	See "7.3 generic-y" for further info on syntax etc.
+	See "7.2 generic-y" for further info on syntax etc.
 
 --- 6.11 Post-link pass
 
@@ -1254,13 +1259,13 @@ A Kbuild file may be defined under arch/<arch>/include/uapi/asm/ and
 arch/<arch>/include/asm/ to list asm files coming from asm-generic.
 See subsequent chapter for the syntax of the Kbuild file.
 
-	--- 7.1 no-export-headers
+--- 7.1 no-export-headers
 
 	no-export-headers is essentially used by include/uapi/linux/Kbuild to
 	avoid exporting specific headers (e.g. kvm.h) on architectures that do
 	not support it. It should be avoided as much as possible.
 
-	--- 7.2 generic-y
+--- 7.2 generic-y
 
 	If an architecture uses a verbatim copy of a header from
 	include/asm-generic then this is listed in the file
@@ -1287,7 +1292,7 @@ See subsequent chapter for the syntax of the Kbuild file.
 		Example: termios.h
 			#include <asm-generic/termios.h>
 
-	--- 7.3 generated-y
+--- 7.3 generated-y
 
 	If an architecture generates other header files alongside generic-y
 	wrappers, generated-y specifies them.
@@ -1299,7 +1304,7 @@ See subsequent chapter for the syntax of the Kbuild file.
 			#arch/x86/include/asm/Kbuild
 			generated-y += syscalls_32.h
 
-	--- 7.5 mandatory-y
+--- 7.4 mandatory-y
 
 	mandatory-y is essentially used by include/uapi/asm-generic/Kbuild.asm
 	to define the minimum set of headers that must be exported in
diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt
index 2335715bf471..22208bf2386d 100644
--- a/Documentation/kprobes.txt
+++ b/Documentation/kprobes.txt
@@ -8,7 +8,7 @@ Kernel Probes (Kprobes)
 
 .. CONTENTS
 
-  1. Concepts: Kprobes, Jprobes, Return Probes
+  1. Concepts: Kprobes, and Return Probes
   2. Architectures Supported
   3. Configuring Kprobes
   4. API Reference
@@ -16,12 +16,12 @@ Kernel Probes (Kprobes)
   6. Probe Overhead
   7. TODO
   8. Kprobes Example
-  9. Jprobes Example
-  10. Kretprobes Example
+  9. Kretprobes Example
+  10. Deprecated Features
   Appendix A: The kprobes debugfs interface
   Appendix B: The kprobes sysctl interface
 
-Concepts: Kprobes, Jprobes, Return Probes
+Concepts: Kprobes and Return Probes
 =========================================
 
 Kprobes enables you to dynamically break into any kernel routine and
@@ -32,12 +32,10 @@ routine to be invoked when the breakpoint is hit.
 .. [1] some parts of the kernel code can not be trapped, see
        :ref:`kprobes_blacklist`)
 
-There are currently three types of probes: kprobes, jprobes, and
-kretprobes (also called return probes).  A kprobe can be inserted
-on virtually any instruction in the kernel.  A jprobe is inserted at
-the entry to a kernel function, and provides convenient access to the
-function's arguments.  A return probe fires when a specified function
-returns.
+There are currently two types of probes: kprobes, and kretprobes
+(also called return probes).  A kprobe can be inserted on virtually
+any instruction in the kernel.  A return probe fires when a specified
+function returns.
 
 In the typical case, Kprobes-based instrumentation is packaged as
 a kernel module.  The module's init function installs ("registers")
@@ -82,45 +80,6 @@ After the instruction is single-stepped, Kprobes executes the
 "post_handler," if any, that is associated with the kprobe.
 Execution then continues with the instruction following the probepoint.
 
-How Does a Jprobe Work?
------------------------
-
-A jprobe is implemented using a kprobe that is placed on a function's
-entry point.  It employs a simple mirroring principle to allow
-seamless access to the probed function's arguments.  The jprobe
-handler routine should have the same signature (arg list and return
-type) as the function being probed, and must always end by calling
-the Kprobes function jprobe_return().
-
-Here's how it works.  When the probe is hit, Kprobes makes a copy of
-the saved registers and a generous portion of the stack (see below).
-Kprobes then points the saved instruction pointer at the jprobe's
-handler routine, and returns from the trap.  As a result, control
-passes to the handler, which is presented with the same register and
-stack contents as the probed function.  When it is done, the handler
-calls jprobe_return(), which traps again to restore the original stack
-contents and processor state and switch to the probed function.
-
-By convention, the callee owns its arguments, so gcc may produce code
-that unexpectedly modifies that portion of the stack.  This is why
-Kprobes saves a copy of the stack and restores it after the jprobe
-handler has run.  Up to MAX_STACK_SIZE bytes are copied -- e.g.,
-64 bytes on i386.
-
-Note that the probed function's args may be passed on the stack
-or in registers.  The jprobe will work in either case, so long as the
-handler's prototype matches that of the probed function.
-
-Note that in some architectures (e.g.: arm64 and sparc64) the stack
-copy is not done, as the actual location of stacked parameters may be
-outside of a reasonable MAX_STACK_SIZE value and because that location
-cannot be determined by the jprobes code. In this case the jprobes
-user must be careful to make certain the calling signature of the
-function does not cause parameters to be passed on the stack (e.g.:
-more than eight function arguments, an argument of more than sixteen
-bytes, or more than 64 bytes of argument data, depending on
-architecture).
-
 Return Probes
 -------------
 
@@ -245,8 +204,7 @@ Pre-optimization
 After preparing the detour buffer, Kprobes verifies that none of the
 following situations exist:
 
-- The probe has either a break_handler (i.e., it's a jprobe) or a
-  post_handler.
+- The probe has a post_handler.
 - Other instructions in the optimized region are probed.
 - The probe is disabled.
 
@@ -331,7 +289,7 @@ rejects registering it, if the given address is in the blacklist.
 Architectures Supported
 =======================
 
-Kprobes, jprobes, and return probes are implemented on the following
+Kprobes and return probes are implemented on the following
 architectures:
 
 - i386 (Supports jump optimization)
@@ -446,27 +404,6 @@ architecture-specific trap number associated with the fault (e.g.,
 on i386, 13 for a general protection fault or 14 for a page fault).
 Returns 1 if it successfully handled the exception.
 
-register_jprobe
----------------
-
-::
-
-	#include <linux/kprobes.h>
-	int register_jprobe(struct jprobe *jp)
-
-Sets a breakpoint at the address jp->kp.addr, which must be the address
-of the first instruction of a function.  When the breakpoint is hit,
-Kprobes runs the handler whose address is jp->entry.
-
-The handler should have the same arg list and return type as the probed
-function; and just before it returns, it must call jprobe_return().
-(The handler never actually returns, since jprobe_return() returns
-control to Kprobes.)  If the probed function is declared asmlinkage
-or anything else that affects how args are passed, the handler's
-declaration must match.
-
-register_jprobe() returns 0 on success, or a negative errno otherwise.
-
 register_kretprobe
 ------------------
 
@@ -513,7 +450,6 @@ unregister_*probe
 
 	#include <linux/kprobes.h>
 	void unregister_kprobe(struct kprobe *kp);
-	void unregister_jprobe(struct jprobe *jp);
 	void unregister_kretprobe(struct kretprobe *rp);
 
 Removes the specified probe.  The unregister function can be called
@@ -532,7 +468,6 @@ register_*probes
 	#include <linux/kprobes.h>
 	int register_kprobes(struct kprobe **kps, int num);
 	int register_kretprobes(struct kretprobe **rps, int num);
-	int register_jprobes(struct jprobe **jps, int num);
 
 Registers each of the num probes in the specified array.  If any
 error occurs during registration, all probes in the array, up to
@@ -555,7 +490,6 @@ unregister_*probes
 	#include <linux/kprobes.h>
 	void unregister_kprobes(struct kprobe **kps, int num);
 	void unregister_kretprobes(struct kretprobe **rps, int num);
-	void unregister_jprobes(struct jprobe **jps, int num);
 
 Removes each of the num probes in the specified array at once.
 
@@ -574,7 +508,6 @@ disable_*probe
 	#include <linux/kprobes.h>
 	int disable_kprobe(struct kprobe *kp);
 	int disable_kretprobe(struct kretprobe *rp);
-	int disable_jprobe(struct jprobe *jp);
 
 Temporarily disables the specified ``*probe``. You can enable it again by using
 enable_*probe(). You must specify the probe which has been registered.
@@ -587,7 +520,6 @@ enable_*probe
 	#include <linux/kprobes.h>
 	int enable_kprobe(struct kprobe *kp);
 	int enable_kretprobe(struct kretprobe *rp);
-	int enable_jprobe(struct jprobe *jp);
 
 Enables ``*probe`` which has been disabled by disable_*probe(). You must specify
 the probe which has been registered.
@@ -595,12 +527,10 @@ the probe which has been registered.
 Kprobes Features and Limitations
 ================================
 
-Kprobes allows multiple probes at the same address.  Currently,
-however, there cannot be multiple jprobes on the same function at
-the same time.  Also, a probepoint for which there is a jprobe or
-a post_handler cannot be optimized.  So if you install a jprobe,
-or a kprobe with a post_handler, at an optimized probepoint, the
-probepoint will be unoptimized automatically.
+Kprobes allows multiple probes at the same address. Also,
+a probepoint for which there is a post_handler cannot be optimized.
+So if you install a kprobe with a post_handler, at an optimized
+probepoint, the probepoint will be unoptimized automatically.
 
 In general, you can install a probe anywhere in the kernel.
 In particular, you can probe interrupt handlers.  Known exceptions
@@ -662,7 +592,7 @@ We're unaware of other specific cases where this could be a problem.
 If, upon entry to or exit from a function, the CPU is running on
 a stack other than that of the current task, registering a return
 probe on that function may produce undesirable results.  For this
-reason, Kprobes doesn't support return probes (or kprobes or jprobes)
+reason, Kprobes doesn't support return probes (or kprobes)
 on the x86_64 version of __switch_to(); the registration functions
 return -EINVAL.
 
@@ -706,24 +636,24 @@ Probe Overhead
 On a typical CPU in use in 2005, a kprobe hit takes 0.5 to 1.0
 microseconds to process.  Specifically, a benchmark that hits the same
 probepoint repeatedly, firing a simple handler each time, reports 1-2
-million hits per second, depending on the architecture.  A jprobe or
-return-probe hit typically takes 50-75% longer than a kprobe hit.
+million hits per second, depending on the architecture.  A return-probe
+hit typically takes 50-75% longer than a kprobe hit.
 When you have a return probe set on a function, adding a kprobe at
 the entry to that function adds essentially no overhead.
 
 Here are sample overhead figures (in usec) for different architectures::
 
-  k = kprobe; j = jprobe; r = return probe; kr = kprobe + return probe
-  on same function; jr = jprobe + return probe on same function::
+  k = kprobe; r = return probe; kr = kprobe + return probe
+  on same function
 
   i386: Intel Pentium M, 1495 MHz, 2957.31 bogomips
-  k = 0.57 usec; j = 1.00; r = 0.92; kr = 0.99; jr = 1.40
+  k = 0.57 usec; r = 0.92; kr = 0.99
 
   x86_64: AMD Opteron 246, 1994 MHz, 3971.48 bogomips
-  k = 0.49 usec; j = 0.76; r = 0.80; kr = 0.82; jr = 1.07
+  k = 0.49 usec; r = 0.80; kr = 0.82
 
   ppc64: POWER5 (gr), 1656 MHz (SMT disabled, 1 virtual CPU per physical CPU)
-  k = 0.77 usec; j = 1.31; r = 1.26; kr = 1.45; jr = 1.99
+  k = 0.77 usec; r = 1.26; kr = 1.45
 
 Optimized Probe Overhead
 ------------------------
@@ -755,11 +685,6 @@ Kprobes Example
 
 See samples/kprobes/kprobe_example.c
 
-Jprobes Example
-===============
-
-See samples/kprobes/jprobe_example.c
-
 Kretprobes Example
 ==================
 
@@ -772,6 +697,37 @@ For additional information on Kprobes, refer to the following URLs:
 - http://www-users.cs.umn.edu/~boutcher/kprobes/
 - http://www.linuxsymposium.org/2006/linuxsymposium_procv2.pdf (pages 101-115)
 
+Deprecated Features
+===================
+
+Jprobes is now a deprecated feature. People who are depending on it should
+migrate to other tracing features or use older kernels. Please consider to
+migrate your tool to one of the following options:
+
+- Use trace-event to trace target function with arguments.
+
+  trace-event is a low-overhead (and almost no visible overhead if it
+  is off) statically defined event interface. You can define new events
+  and trace it via ftrace or any other tracing tools.
+
+  See the following urls:
+
+    - https://lwn.net/Articles/379903/
+    - https://lwn.net/Articles/381064/
+    - https://lwn.net/Articles/383362/
+
+- Use ftrace dynamic events (kprobe event) with perf-probe.
+
+  If you build your kernel with debug info (CONFIG_DEBUG_INFO=y), you can
+  find which register/stack is assigned to which local variable or arguments
+  by using perf-probe and set up new event to trace it.
+
+  See following documents:
+
+  - Documentation/trace/kprobetrace.txt
+  - Documentation/trace/events.txt
+  - tools/perf/Documentation/perf-probe.txt
+
 
 The kprobes debugfs interface
 =============================
@@ -783,14 +739,13 @@ under the /sys/kernel/debug/kprobes/ directory (assuming debugfs is mounted at /
 /sys/kernel/debug/kprobes/list: Lists all registered probes on the system::
 
 	c015d71a  k  vfs_read+0x0
-	c011a316  j  do_fork+0x0
 	c03dedc5  r  tcp_v4_rcv+0x0
 
 The first column provides the kernel address where the probe is inserted.
-The second column identifies the type of probe (k - kprobe, r - kretprobe
-and j - jprobe), while the third column specifies the symbol+offset of
-the probe. If the probed function belongs to a module, the module name
-is also specified. Following columns show probe status. If the probe is on
+The second column identifies the type of probe (k - kprobe and r - kretprobe)
+while the third column specifies the symbol+offset of the probe.
+If the probed function belongs to a module, the module name is also
+specified. Following columns show probe status. If the probe is on
 a virtual address that is no longer valid (module init sections, module
 virtual addresses that correspond to modules that've been unloaded),
 such probes are marked with [GONE]. If the probe is temporarily disabled,
diff --git a/Documentation/laptops/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt
index 19276f5d195c..1c707fc9b141 100644
--- a/Documentation/laptops/laptop-mode.txt
+++ b/Documentation/laptops/laptop-mode.txt
@@ -184,7 +184,7 @@ is done when dirty_ratio is reached.
 DO_CPU:
 
 Enable CPU frequency scaling when in laptop mode. (Requires CPUFreq to be setup.
-See Documentation/cpu-freq/user-guide.txt for more info. Disabled by default.)
+See Documentation/admin-guide/pm/cpufreq.rst for more info. Disabled by default.)
 
 CPU_MAXFREQ:
 
@@ -287,7 +287,7 @@ MINIMUM_BATTERY_MINUTES=10
 
 # Should the maximum CPU frequency be adjusted down while on battery?
 # Requires CPUFreq to be setup.
-# See Documentation/cpu-freq/user-guide.txt for more info
+# See Documentation/admin-guide/pm/cpufreq.rst for more info
 #DO_CPU=0
 
 # When on battery what is the maximum CPU speed that the system should
@@ -378,7 +378,7 @@ BATT_HD=${BATT_HD:-'4'}
 DIRTY_RATIO=${DIRTY_RATIO:-'40'}
 
 # cpu frequency scaling
-# See Documentation/cpu-freq/user-guide.txt for more info
+# See Documentation/admin-guide/pm/cpufreq.rst for more info
 DO_CPU=${CPU_MANAGE:-'0'}
 CPU_MAXFREQ=${CPU_MAXFREQ:-'slowest'}
 
diff --git a/Documentation/locking/rt-mutex-design.txt b/Documentation/locking/rt-mutex-design.txt
index 6c6e8c2410de..3d7b865539cc 100644
--- a/Documentation/locking/rt-mutex-design.txt
+++ b/Documentation/locking/rt-mutex-design.txt
@@ -8,7 +8,7 @@ RT-mutex implementation design
 
 This document tries to describe the design of the rtmutex.c implementation.
 It doesn't describe the reasons why rtmutex.c exists. For that please see
-Documentation/rt-mutex.txt.  Although this document does explain problems
+Documentation/locking/rt-mutex.txt.  Although this document does explain problems
 that happen without this code, but that is in the concept to understand
 what the code actually is doing.
 
diff --git a/Documentation/md/md-cluster.txt b/Documentation/md/md-cluster.txt
index 82ee51604e9a..e1055f105cf5 100644
--- a/Documentation/md/md-cluster.txt
+++ b/Documentation/md/md-cluster.txt
@@ -1,4 +1,5 @@
-The cluster MD is a shared-device RAID for a cluster.
+The cluster MD is a shared-device RAID for a cluster, it supports
+two levels: raid1 and raid10 (limited support).
 
 
 1. On-disk format
diff --git a/Documentation/media/dvb-drivers/bt8xx.rst b/Documentation/media/dvb-drivers/bt8xx.rst
index b43958b7340c..e3e387bdf498 100644
--- a/Documentation/media/dvb-drivers/bt8xx.rst
+++ b/Documentation/media/dvb-drivers/bt8xx.rst
@@ -18,7 +18,7 @@ General information
 
 This class of cards has a bt878a as the PCI interface, and require the bttv driver
 for accessing the i2c bus and the gpio pins of the bt8xx chipset.
-Please see Documentation/dvb/cards.txt => o Cards based on the Conexant Bt8xx PCI bridge:
+Please see Documentation/media/dvb-drivers/cards.rst => o Cards based on the Conexant Bt8xx PCI bridge:
 
 Compiling kernel please enable:
 
@@ -45,7 +45,7 @@ Loading Modules
 Regular case: If the bttv driver detects a bt8xx-based DVB card, all frontend and backend modules will be loaded automatically.
 Exceptions are:
 - Old TwinHan DST cards or clones with or without CA slot and not containing an Eeprom.
-People running udev please see Documentation/dvb/udev.txt.
+People running udev please see Documentation/media/dvb-drivers/udev.rst.
 
 In the following cases overriding the PCI type detection for dvb-bt8xx might be necessary:
 
@@ -72,7 +72,7 @@ Useful parameters for verbosity level and debugging the dst module:
 The autodetected values are determined by the cards' "response string".
 In your logs see f. ex.: dst_get_device_id: Recognize [DSTMCI].
 For bug reports please send in a complete log with verbose=4 activated.
-Please also see Documentation/dvb/ci.txt.
+Please also see Documentation/media/dvb-drivers/ci.rst.
 
 Running multiple cards
 ~~~~~~~~~~~~~~~~~~~~~~
@@ -100,7 +100,7 @@ Examples of card ID's:
 
 	$ modprobe bttv card=113 card=135
 
-For a full list of card ID's please see Documentation/video4linux/CARDLIST.bttv.
+For a full list of card ID's please see Documentation/media/v4l-drivers/bttv-cardlist.rst.
 In case of further problems please subscribe and send questions to the mailing list: linux-dvb@linuxtv.org.
 
 Probing the cards with broken PCI subsystem ID
diff --git a/Documentation/media/uapi/v4l/dev-sliced-vbi.rst b/Documentation/media/uapi/v4l/dev-sliced-vbi.rst
index 9d6c860271cb..d311a6866b3b 100644
--- a/Documentation/media/uapi/v4l/dev-sliced-vbi.rst
+++ b/Documentation/media/uapi/v4l/dev-sliced-vbi.rst
@@ -431,7 +431,7 @@ MPEG stream.
 *Historical context*: This format specification originates from a
 custom, embedded, sliced VBI data format used by the ``ivtv`` driver.
 This format has already been informally specified in the kernel sources
-in the file ``Documentation/video4linux/cx2341x/README.vbi`` . The
+in the file ``Documentation/media/v4l-drivers/cx2341x.rst`` . The
 maximum size of the payload and other aspects of this format are driven
 by the CX23415 MPEG decoder's capabilities and limitations with respect
 to extracting, decoding, and displaying sliced VBI data embedded within
diff --git a/Documentation/media/uapi/v4l/extended-controls.rst b/Documentation/media/uapi/v4l/extended-controls.rst
index a3e81c1d276b..dfe49ae57e78 100644
--- a/Documentation/media/uapi/v4l/extended-controls.rst
+++ b/Documentation/media/uapi/v4l/extended-controls.rst
@@ -284,7 +284,7 @@ enum v4l2_mpeg_stream_vbi_fmt -
     * - ``V4L2_MPEG_STREAM_VBI_FMT_IVTV``
       - VBI in private packets, IVTV format (documented in the kernel
 	sources in the file
-	``Documentation/video4linux/cx2341x/README.vbi``)
+	``Documentation/media/v4l-drivers/cx2341x.rst``)
 
 
 
diff --git a/Documentation/media/uapi/v4l/pixfmt-reserved.rst b/Documentation/media/uapi/v4l/pixfmt-reserved.rst
index 521adb795535..38af1472a4b4 100644
--- a/Documentation/media/uapi/v4l/pixfmt-reserved.rst
+++ b/Documentation/media/uapi/v4l/pixfmt-reserved.rst
@@ -52,7 +52,7 @@ please make a proposal on the linux-media mailing list.
 	`http://www.ivtvdriver.org/ <http://www.ivtvdriver.org/>`__
 
 	The format is documented in the kernel sources in the file
-	``Documentation/video4linux/cx2341x/README.hm12``
+	``Documentation/media/v4l-drivers/cx2341x.rst``
     * .. _V4L2-PIX-FMT-CPIA1:
 
       - ``V4L2_PIX_FMT_CPIA1``
diff --git a/Documentation/media/v4l-drivers/bttv.rst b/Documentation/media/v4l-drivers/bttv.rst
index 195ccaac2816..5f35e2fb5afa 100644
--- a/Documentation/media/v4l-drivers/bttv.rst
+++ b/Documentation/media/v4l-drivers/bttv.rst
@@ -307,7 +307,7 @@ console and let some terminal application log the messages.  /me uses
 screen.  See Documentation/admin-guide/serial-console.rst for details on setting
 up a serial console.
 
-Read Documentation/admin-guide/oops-tracing.rst to learn how to get any useful
+Read Documentation/admin-guide/bug-hunting.rst to learn how to get any useful
 information out of a register+stack dump printed by the kernel on
 protection faults (so-called "kernel oops").
 
diff --git a/Documentation/media/v4l-drivers/max2175.rst b/Documentation/media/v4l-drivers/max2175.rst
index 04478c25d57a..b1a4c89fd869 100644
--- a/Documentation/media/v4l-drivers/max2175.rst
+++ b/Documentation/media/v4l-drivers/max2175.rst
@@ -7,7 +7,7 @@ The MAX2175 driver implements the following driver-specific controls:
 -------------------------------
     Enable/Disable I2S output of the tuner. This is a private control
     that can be accessed only using the subdev interface.
-    Refer to Documentation/media/kapi/v4l2-controls for more details.
+    Refer to Documentation/media/kapi/v4l2-controls.rst for more details.
 
 .. flat-table::
     :header-rows:  0
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index b759a60624fd..479ecec80593 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -53,7 +53,7 @@ CONTENTS
      - SMP barrier pairing.
      - Examples of memory barrier sequences.
      - Read memory barriers vs load speculation.
-     - Transitivity
+     - Multicopy atomicity.
 
  (*) Explicit kernel barriers.
 
@@ -383,8 +383,8 @@ Memory barriers come in four basic varieties:
      to have any effect on loads.
 
      A CPU can be viewed as committing a sequence of store operations to the
-     memory system as time progresses.  All stores before a write barrier will
-     occur in the sequence _before_ all the stores after the write barrier.
+     memory system as time progresses.  All stores _before_ a write barrier
+     will occur _before_ all the stores after the write barrier.
 
      [!] Note that write barriers should normally be paired with read or data
      dependency barriers; see the "SMP barrier pairing" subsection.
@@ -635,6 +635,11 @@ can be used to record rare error conditions and the like, and the CPUs'
 naturally occurring ordering prevents such records from being lost.
 
 
+Note well that the ordering provided by a data dependency is local to
+the CPU containing it.  See the section on "Multicopy atomicity" for
+more information.
+
+
 The data dependency barrier is very important to the RCU system,
 for example.  See rcu_assign_pointer() and rcu_dereference() in
 include/linux/rcupdate.h.  This permits the current target of an RCU'd
@@ -851,38 +856,11 @@ In short, control dependencies apply only to the stores in the then-clause
 and else-clause of the if-statement in question (including functions
 invoked by those two clauses), not to code following that if-statement.
 
-Finally, control dependencies do -not- provide transitivity.  This is
-demonstrated by two related examples, with the initial values of
-'x' and 'y' both being zero:
-
-	CPU 0                     CPU 1
-	=======================   =======================
-	r1 = READ_ONCE(x);        r2 = READ_ONCE(y);
-	if (r1 > 0)               if (r2 > 0)
-	  WRITE_ONCE(y, 1);         WRITE_ONCE(x, 1);
-
-	assert(!(r1 == 1 && r2 == 1));
-
-The above two-CPU example will never trigger the assert().  However,
-if control dependencies guaranteed transitivity (which they do not),
-then adding the following CPU would guarantee a related assertion:
 
-	CPU 2
-	=====================
-	WRITE_ONCE(x, 2);
+Note well that the ordering provided by a control dependency is local
+to the CPU containing it.  See the section on "Multicopy atomicity"
+for more information.
 
-	assert(!(r1 == 2 && r2 == 1 && x == 2)); /* FAILS!!! */
-
-But because control dependencies do -not- provide transitivity, the above
-assertion can fail after the combined three-CPU example completes.  If you
-need the three-CPU example to provide ordering, you will need smp_mb()
-between the loads and stores in the CPU 0 and CPU 1 code fragments,
-that is, just before or just after the "if" statements.  Furthermore,
-the original two-CPU example is very fragile and should be avoided.
-
-These two examples are the LB and WWC litmus tests from this paper:
-http://www.cl.cam.ac.uk/users/pes20/ppc-supplemental/test6.pdf and this
-site: https://www.cl.cam.ac.uk/~pes20/ppcmem/index.html.
 
 In summary:
 
@@ -922,8 +900,8 @@ In summary:
 
   (*) Control dependencies pair normally with other types of barriers.
 
-  (*) Control dependencies do -not- provide transitivity.  If you
-      need transitivity, use smp_mb().
+  (*) Control dependencies do -not- provide multicopy atomicity.  If you
+      need all the CPUs to see a given store at the same time, use smp_mb().
 
   (*) Compilers do not understand control dependencies.  It is therefore
       your job to ensure that they do not break your code.
@@ -936,13 +914,14 @@ When dealing with CPU-CPU interactions, certain types of memory barrier should
 always be paired.  A lack of appropriate pairing is almost certainly an error.
 
 General barriers pair with each other, though they also pair with most
-other types of barriers, albeit without transitivity.  An acquire barrier
-pairs with a release barrier, but both may also pair with other barriers,
-including of course general barriers.  A write barrier pairs with a data
-dependency barrier, a control dependency, an acquire barrier, a release
-barrier, a read barrier, or a general barrier.  Similarly a read barrier,
-control dependency, or a data dependency barrier pairs with a write
-barrier, an acquire barrier, a release barrier, or a general barrier:
+other types of barriers, albeit without multicopy atomicity.  An acquire
+barrier pairs with a release barrier, but both may also pair with other
+barriers, including of course general barriers.  A write barrier pairs
+with a data dependency barrier, a control dependency, an acquire barrier,
+a release barrier, a read barrier, or a general barrier.  Similarly a
+read barrier, control dependency, or a data dependency barrier pairs
+with a write barrier, an acquire barrier, a release barrier, or a
+general barrier:
 
 	CPU 1		      CPU 2
 	===============	      ===============
@@ -968,7 +947,7 @@ Or even:
 	===============	      ===============================
 	r1 = READ_ONCE(y);
 	<general barrier>
-	WRITE_ONCE(y, 1);     if (r2 = READ_ONCE(x)) {
+	WRITE_ONCE(x, 1);     if (r2 = READ_ONCE(x)) {
 			         <implicit control dependency>
 			         WRITE_ONCE(y, 1);
 			      }
@@ -1359,64 +1338,79 @@ the speculation will be cancelled and the value reloaded:
 	retrieved                               :       :       +-------+
 
 
-TRANSITIVITY
-------------
+MULTICOPY ATOMICITY
+--------------------
 
-Transitivity is a deeply intuitive notion about ordering that is not
-always provided by real computer systems.  The following example
-demonstrates transitivity:
+Multicopy atomicity is a deeply intuitive notion about ordering that is
+not always provided by real computer systems, namely that a given store
+becomes visible at the same time to all CPUs, or, alternatively, that all
+CPUs agree on the order in which all stores become visible.  However,
+support of full multicopy atomicity would rule out valuable hardware
+optimizations, so a weaker form called ``other multicopy atomicity''
+instead guarantees only that a given store becomes visible at the same
+time to all -other- CPUs.  The remainder of this document discusses this
+weaker form, but for brevity will call it simply ``multicopy atomicity''.
+
+The following example demonstrates multicopy atomicity:
 
 	CPU 1			CPU 2			CPU 3
 	=======================	=======================	=======================
 		{ X = 0, Y = 0 }
-	STORE X=1		LOAD X			STORE Y=1
-				<general barrier>	<general barrier>
-				LOAD Y			LOAD X
-
-Suppose that CPU 2's load from X returns 1 and its load from Y returns 0.
-This indicates that CPU 2's load from X in some sense follows CPU 1's
-store to X and that CPU 2's load from Y in some sense preceded CPU 3's
-store to Y.  The question is then "Can CPU 3's load from X return 0?"
-
-Because CPU 2's load from X in some sense came after CPU 1's store, it
+	STORE X=1		r1=LOAD X (reads 1)	LOAD Y (reads 1)
+				<general barrier>	<read barrier>
+				STORE Y=r1		LOAD X
+
+Suppose that CPU 2's load from X returns 1, which it then stores to Y,
+and CPU 3's load from Y returns 1.  This indicates that CPU 1's store
+to X precedes CPU 2's load from X and that CPU 2's store to Y precedes
+CPU 3's load from Y.  In addition, the memory barriers guarantee that
+CPU 2 executes its load before its store, and CPU 3 loads from Y before
+it loads from X.  The question is then "Can CPU 3's load from X return 0?"
+
+Because CPU 3's load from X in some sense comes after CPU 2's load, it
 is natural to expect that CPU 3's load from X must therefore return 1.
-This expectation is an example of transitivity: if a load executing on
-CPU A follows a load from the same variable executing on CPU B, then
-CPU A's load must either return the same value that CPU B's load did,
-or must return some later value.
-
-In the Linux kernel, use of general memory barriers guarantees
-transitivity.  Therefore, in the above example, if CPU 2's load from X
-returns 1 and its load from Y returns 0, then CPU 3's load from X must
-also return 1.
-
-However, transitivity is -not- guaranteed for read or write barriers.
-For example, suppose that CPU 2's general barrier in the above example
-is changed to a read barrier as shown below:
+This expectation follows from multicopy atomicity: if a load executing
+on CPU B follows a load from the same variable executing on CPU A (and
+CPU A did not originally store the value which it read), then on
+multicopy-atomic systems, CPU B's load must return either the same value
+that CPU A's load did or some later value.  However, the Linux kernel
+does not require systems to be multicopy atomic.
+
+The use of a general memory barrier in the example above compensates
+for any lack of multicopy atomicity.  In the example, if CPU 2's load
+from X returns 1 and CPU 3's load from Y returns 1, then CPU 3's load
+from X must indeed also return 1.
+
+However, dependencies, read barriers, and write barriers are not always
+able to compensate for non-multicopy atomicity.  For example, suppose
+that CPU 2's general barrier is removed from the above example, leaving
+only the data dependency shown below:
 
 	CPU 1			CPU 2			CPU 3
 	=======================	=======================	=======================
 		{ X = 0, Y = 0 }
-	STORE X=1		LOAD X			STORE Y=1
-				<read barrier>		<general barrier>
-				LOAD Y			LOAD X
-
-This substitution destroys transitivity: in this example, it is perfectly
-legal for CPU 2's load from X to return 1, its load from Y to return 0,
-and CPU 3's load from X to return 0.
-
-The key point is that although CPU 2's read barrier orders its pair
-of loads, it does not guarantee to order CPU 1's store.  Therefore, if
-this example runs on a system where CPUs 1 and 2 share a store buffer
-or a level of cache, CPU 2 might have early access to CPU 1's writes.
-General barriers are therefore required to ensure that all CPUs agree
-on the combined order of CPU 1's and CPU 2's accesses.
-
-General barriers provide "global transitivity", so that all CPUs will
-agree on the order of operations.  In contrast, a chain of release-acquire
-pairs provides only "local transitivity", so that only those CPUs on
-the chain are guaranteed to agree on the combined order of the accesses.
-For example, switching to C code in deference to Herman Hollerith:
+	STORE X=1		r1=LOAD X (reads 1)	LOAD Y (reads 1)
+				<data dependency>	<read barrier>
+				STORE Y=r1		LOAD X (reads 0)
+
+This substitution allows non-multicopy atomicity to run rampant: in
+this example, it is perfectly legal for CPU 2's load from X to return 1,
+CPU 3's load from Y to return 1, and its load from X to return 0.
+
+The key point is that although CPU 2's data dependency orders its load
+and store, it does not guarantee to order CPU 1's store.  Thus, if this
+example runs on a non-multicopy-atomic system where CPUs 1 and 2 share a
+store buffer or a level of cache, CPU 2 might have early access to CPU 1's
+writes.  General barriers are therefore required to ensure that all CPUs
+agree on the combined order of multiple accesses.
+
+General barriers can compensate not only for non-multicopy atomicity,
+but can also generate additional ordering that can ensure that -all-
+CPUs will perceive the same order of -all- operations.  In contrast, a
+chain of release-acquire pairs do not provide this additional ordering,
+which means that only those CPUs on the chain are guaranteed to agree
+on the combined order of the accesses.  For example, switching to C code
+in deference to the ghost of Herman Hollerith:
 
 	int u, v, x, y, z;
 
@@ -1448,9 +1442,9 @@ For example, switching to C code in deference to Herman Hollerith:
 		r3 = READ_ONCE(u);
 	}
 
-Because cpu0(), cpu1(), and cpu2() participate in a local transitive
-chain of smp_store_release()/smp_load_acquire() pairs, the following
-outcome is prohibited:
+Because cpu0(), cpu1(), and cpu2() participate in a chain of
+smp_store_release()/smp_load_acquire() pairs, the following outcome
+is prohibited:
 
 	r0 == 1 && r1 == 1 && r2 == 1
 
@@ -1460,9 +1454,9 @@ outcome is prohibited:
 
 	r1 == 1 && r5 == 0
 
-However, the transitivity of release-acquire is local to the participating
-CPUs and does not apply to cpu3().  Therefore, the following outcome
-is possible:
+However, the ordering provided by a release-acquire chain is local
+to the CPUs participating in that chain and does not apply to cpu3(),
+at least aside from stores.  Therefore, the following outcome is possible:
 
 	r0 == 0 && r1 == 1 && r2 == 1 && r3 == 0 && r4 == 0
 
@@ -1490,8 +1484,8 @@ following outcome is possible:
 Note that this outcome can happen even on a mythical sequentially
 consistent system where nothing is ever reordered.
 
-To reiterate, if your code requires global transitivity, use general
-barriers throughout.
+To reiterate, if your code requires full ordering of all operations,
+use general barriers throughout.
 
 
 ========================
@@ -1886,18 +1880,6 @@ There are some more advanced barrier functions:
      See Documentation/atomic_{t,bitops}.txt for more information.
 
 
- (*) lockless_dereference();
-
-     This can be thought of as a pointer-fetch wrapper around the
-     smp_read_barrier_depends() data-dependency barrier.
-
-     This is also similar to rcu_dereference(), but in cases where
-     object lifetime is handled by some mechanism other than RCU, for
-     example, when the objects removed only when the system goes down.
-     In addition, lockless_dereference() is used in some data structures
-     that can be used both with and without RCU.
-
-
  (*) dma_wmb();
  (*) dma_rmb();
 
@@ -3101,6 +3083,9 @@ AMD64 Architecture Programmer's Manual Volume 2: System Programming
 	Chapter 7.1: Memory-Access Ordering
 	Chapter 7.4: Buffering and Combining Memory Writes
 
+ARM Architecture Reference Manual (ARMv8, for ARMv8-A architecture profile)
+	Chapter B2: The AArch64 Application Level Memory Model
+
 IA-32 Intel Architecture Software Developer's Manual, Volume 3:
 System Programming Guide
 	Chapter 7.1: Locked Atomic Operations
@@ -3112,6 +3097,8 @@ The SPARC Architecture Manual, Version 9
 	Appendix D: Formal Specification of the Memory Models
 	Appendix J: Programming with the Memory Models
 
+Storage in the PowerPC (Stone and Fitzgerald)
+
 UltraSPARC Programmer Reference Manual
 	Chapter 5: Memory Accesses and Cacheability
 	Chapter 15: Sparc-V9 Memory Models
diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 57f52cdce32e..9ba04c0bab8d 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -2387,7 +2387,7 @@ broadcast: Like active-backup, there is not much advantage to this
 	and packet type ID), so in a "gatewayed" configuration, all
 	outgoing traffic will generally use the same device.  Incoming
 	traffic may also end up on a single device, but that is
-	dependent upon the balancing policy of the peer's 8023.ad
+	dependent upon the balancing policy of the peer's 802.3ad
 	implementation.  In a "local" configuration, traffic will be
 	distributed across the devices in the bond.
 
diff --git a/Documentation/networking/cdc_mbim.txt b/Documentation/networking/cdc_mbim.txt
index e4c376abbdad..4e68f0bc5dba 100644
--- a/Documentation/networking/cdc_mbim.txt
+++ b/Documentation/networking/cdc_mbim.txt
@@ -332,8 +332,8 @@ References
 [5] "MBIM (Mobile Broadband Interface Model) Registry"
        - http://compliance.usb.org/mbim/
 
-[6] "/dev/bus/usb filesystem output"
-       - Documentation/usb/proc_usb_info.txt
+[6] "/sys/kernel/debug/usb/devices output format"
+       - Documentation/driver-api/usb/usb.rst
 
 [7] "/sys/bus/usb/devices/.../descriptors"
        - Documentation/ABI/stable/sysfs-bus-usb
diff --git a/Documentation/networking/checksum-offloads.txt b/Documentation/networking/checksum-offloads.txt
index d52d191bbb0c..27bc09cfcf6d 100644
--- a/Documentation/networking/checksum-offloads.txt
+++ b/Documentation/networking/checksum-offloads.txt
@@ -47,7 +47,7 @@ The requirements for GSO are more complicated, because when segmenting an
  (section 'E') for more details.
 
 A driver declares its offload capabilities in netdev->hw_features; see
- Documentation/networking/netdev-features for more.  Note that a device
+ Documentation/networking/netdev-features.txt for more.  Note that a device
  which only advertises NETIF_F_IP[V6]_CSUM must still obey the csum_start
  and csum_offset given in the SKB; if it tries to deduce these itself in
  hardware (as some NICs do) the driver should check that the values in the
diff --git a/Documentation/networking/filter.txt b/Documentation/networking/filter.txt
index e5e33bac2068..87814859cfc2 100644
--- a/Documentation/networking/filter.txt
+++ b/Documentation/networking/filter.txt
@@ -45,7 +45,7 @@ in many more places. There's xt_bpf for netfilter, cls_bpf in the kernel
 qdisc layer, SECCOMP-BPF (SECure COMPuting [1]), and lots of other places
 such as team driver, PTP code, etc where BPF is being used.
 
- [1] Documentation/prctl/seccomp_filter.txt
+ [1] Documentation/userspace-api/seccomp_filter.rst
 
 Original BPF paper:
 
@@ -337,7 +337,7 @@ Examples for low-level BPF:
   jeq #14, good           /* __NR_rt_sigprocmask */
   jeq #13, good           /* __NR_rt_sigaction */
   jeq #35, good           /* __NR_nanosleep */
-  bad: ret #0             /* SECCOMP_RET_KILL */
+  bad: ret #0             /* SECCOMP_RET_KILL_THREAD */
   good: ret #0x7fff0000   /* SECCOMP_RET_ALLOW */
 
 The above example code can be placed into a file (here called "foo"), and
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index b3345d0fe0a6..77f4de59dc9c 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -1680,6 +1680,9 @@ accept_dad - INTEGER
 	2: Enable DAD, and disable IPv6 operation if MAC-based duplicate
 	   link-local address has been found.
 
+	DAD operation and mode on a given interface will be selected according
+	to the maximum value of conf/{all,interface}/accept_dad.
+
 force_tllao - BOOLEAN
 	Enable sending the target link-layer address option even when
 	responding to a unicast neighbor solicitation.
@@ -1727,16 +1730,23 @@ suppress_frag_ndisc - INTEGER
 
 optimistic_dad - BOOLEAN
 	Whether to perform Optimistic Duplicate Address Detection (RFC 4429).
-		0: disabled (default)
-		1: enabled
+	0: disabled (default)
+	1: enabled
+
+	Optimistic Duplicate Address Detection for the interface will be enabled
+	if at least one of conf/{all,interface}/optimistic_dad is set to 1,
+	it will be disabled otherwise.
 
 use_optimistic - BOOLEAN
 	If enabled, do not classify optimistic addresses as deprecated during
 	source address selection.  Preferred addresses will still be chosen
 	before optimistic addresses, subject to other ranking in the source
 	address selection algorithm.
-		0: disabled (default)
-		1: enabled
+	0: disabled (default)
+	1: enabled
+
+	This will be enabled if at least one of
+	conf/{all,interface}/use_optimistic is set to 1, disabled otherwise.
 
 stable_secret - IPv6 address
 	This IPv6 address will be used as a secret to generate IPv6
diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt
index f3b9e507ab05..bf654845556e 100644
--- a/Documentation/networking/packet_mmap.txt
+++ b/Documentation/networking/packet_mmap.txt
@@ -1055,7 +1055,7 @@ TX_RING part only TP_STATUS_AVAILABLE is set, then the tp_sec and tp_{n,u}sec
 members do not contain a valid value. For TX_RINGs, by default no timestamp
 is generated!
 
-See include/linux/net_tstamp.h and Documentation/networking/timestamping
+See include/linux/net_tstamp.h and Documentation/networking/timestamping.txt
 for more information on hardware timestamps.
 
 -------------------------------------------------------------------------------
diff --git a/Documentation/networking/switchdev.txt b/Documentation/networking/switchdev.txt
index 5e40e1f68873..82236a17b5e6 100644
--- a/Documentation/networking/switchdev.txt
+++ b/Documentation/networking/switchdev.txt
@@ -13,42 +13,42 @@ an example setup using a data-center-class switch ASIC chip.  Other setups
 with SR-IOV or soft switches, such as OVS, are possible.
 
 
-                             User-space tools
-
-       user space                   |
-      +-------------------------------------------------------------------+
-       kernel                       | Netlink
-                                    |
-                     +--------------+-------------------------------+
-                     |         Network stack                        |
-                     |           (Linux)                            |
-                     |                                              |
-                     +----------------------------------------------+
+                             User-space tools
+
+       user space                   |
+      +-------------------------------------------------------------------+
+       kernel                       | Netlink
+                                    |
+                     +--------------+-------------------------------+
+                     |         Network stack                        |
+                     |           (Linux)                            |
+                     |                                              |
+                     +----------------------------------------------+
 
                            sw1p2     sw1p4     sw1p6
-                      sw1p1  +  sw1p3  +  sw1p5  +          eth1
-                        +    |    +    |    +    |            +
-                        |    |    |    |    |    |            |
-                     +--+----+----+----+-+--+----+---+  +-----+-----+
-                     |         Switch driver         |  |    mgmt   |
-                     |        (this document)        |  |   driver  |
-                     |                               |  |           |
-                     +--------------+----------------+  +-----------+
-                                    |
-       kernel                       | HW bus (eg PCI)
-      +-------------------------------------------------------------------+
-       hardware                     |
-                     +--------------+---+------------+
-                     |         Switch device (sw1)   |
-                     |  +----+                       +--------+
-                     |  |    v offloaded data path   | mgmt port
-                     |  |    |                       |
-                     +--|----|----+----+----+----+---+
-                        |    |    |    |    |    |
-                        +    +    +    +    +    +
-                       p1   p2   p3   p4   p5   p6
-
-                             front-panel ports
+                      sw1p1  +  sw1p3  +  sw1p5  +          eth1
+                        +    |    +    |    +    |            +
+                        |    |    |    |    |    |            |
+                     +--+----+----+----+----+----+---+  +-----+-----+
+                     |         Switch driver         |  |    mgmt   |
+                     |        (this document)        |  |   driver  |
+                     |                               |  |           |
+                     +--------------+----------------+  +-----------+
+                                    |
+       kernel                       | HW bus (eg PCI)
+      +-------------------------------------------------------------------+
+       hardware                     |
+                     +--------------+----------------+
+                     |         Switch device (sw1)   |
+                     |  +----+                       +--------+
+                     |  |    v offloaded data path   | mgmt port
+                     |  |    |                       |
+                     +--|----|----+----+----+----+---+
+                        |    |    |    |    |    |
+                        +    +    +    +    +    +
+                       p1   p2   p3   p4   p5   p6
+
+                             front-panel ports
 
 
                                     Fig 1.
diff --git a/arch/openrisc/README.openrisc b/Documentation/openrisc/README
index 072069ab5100..777a893d533d 100644
--- a/arch/openrisc/README.openrisc
+++ b/Documentation/openrisc/README
@@ -7,13 +7,7 @@ target architecture, specifically, is the 32-bit OpenRISC 1000 family (or1k).
 For information about OpenRISC processors and ongoing development:
 
 	website		http://openrisc.io
-
-For more information about Linux on OpenRISC, please contact South Pole AB.
-
-	email:		info@southpole.se
-
-	website:	http://southpole.se
-			http://southpoleconsulting.com
+	email		openrisc@lists.librecores.org
 
 ---------------------------------------------------------------------
 
@@ -24,37 +18,54 @@ In order to build and run Linux for OpenRISC, you'll need at least a basic
 toolchain and, perhaps, the architectural simulator.  Steps to get these bits
 in place are outlined here.
 
-1)  The toolchain can be obtained from openrisc.io.  Instructions for building
-a toolchain can be found at:
+1) Toolchain
+
+Toolchain binaries can be obtained from openrisc.io or our github releases page.
+Instructions for building the different toolchains can be found on openrisc.io
+or Stafford's toolchain build and release scripts.
+
+	binaries	https://github.com/openrisc/or1k-gcc/releases
+	toolchains	https://openrisc.io/software
+	building	https://github.com/stffrdhrn/or1k-toolchain-build
 
-https://github.com/openrisc/tutorials
+2) Building
 
-2) or1ksim (optional)
+Build the Linux kernel as usual
 
-or1ksim is the architectural simulator which will allow you to actually run
-your OpenRISC Linux kernel if you don't have an OpenRISC processor at hand.
+	make ARCH=openrisc defconfig
+	make ARCH=openrisc
 
-	git clone https://github.com/openrisc/or1ksim.git
+3) Running on FPGA (optional)
 
-	cd or1ksim
-	./configure --prefix=$OPENRISC_PREFIX
-	make
-	make install
+The OpenRISC community typically uses FuseSoC to manage building and programming
+an SoC into an FPGA.  The below is an example of programming a De0 Nano
+development board with the OpenRISC SoC.  During the build FPGA RTL is code
+downloaded from the FuseSoC IP cores repository and built using the FPGA vendor
+tools.  Binaries are loaded onto the board with openocd.
 
-3)  Linux kernel
+	git clone https://github.com/olofk/fusesoc
+	cd fusesoc
+	sudo pip install -e .
 
-Build the kernel as usual
+	fusesoc init
+	fusesoc build de0_nano
+	fusesoc pgm de0_nano
 
-	make ARCH=openrisc defconfig
-	make ARCH=openrisc
+	openocd -f interface/altera-usb-blaster.cfg \
+		-f board/or1k_generic.cfg
+
+	telnet localhost 4444
+	> init
+	> halt; load_image vmlinux ; reset
 
-4)  Run in architectural simulator
+4) Running on a Simulator (optional)
 
-Grab the or1ksim platform configuration file (from the or1ksim source) and
-together with your freshly built vmlinux, run your kernel with the following
-incantation:
+QEMU is a processor emulator which we recommend for simulating the OpenRISC
+platform.  Please follow the OpenRISC instructions on the QEMU website to get
+Linux running on QEMU.  You can build QEMU yourself, but your Linux distribution
+likely provides binary packages to support OpenRISC.
 
-	sim -f arch/openrisc/or1ksim.cfg vmlinux
+	qemu openrisc	https://wiki.qemu.org/Documentation/Platforms/OpenRISC
 
 ---------------------------------------------------------------------
 
diff --git a/arch/openrisc/TODO.openrisc b/Documentation/openrisc/TODO
index c43d4e1d14eb..c43d4e1d14eb 100644
--- a/arch/openrisc/TODO.openrisc
+++ b/Documentation/openrisc/TODO
diff --git a/Documentation/pi-futex.txt b/Documentation/pi-futex.txt
index aafddbee7377..b154f6c0c36e 100644
--- a/Documentation/pi-futex.txt
+++ b/Documentation/pi-futex.txt
@@ -119,4 +119,4 @@ properties of futexes, and all four combinations are possible: futex,
 robust-futex, PI-futex, robust+PI-futex.
 
 More details about priority inheritance can be found in
-Documentation/rt-mutex.txt.
+Documentation/locking/rt-mutex.txt.
diff --git a/Documentation/power/interface.txt b/Documentation/power/interface.txt
index 974916ff6608..27df7f98668a 100644
--- a/Documentation/power/interface.txt
+++ b/Documentation/power/interface.txt
@@ -24,7 +24,8 @@ platform.
 
 If one of the strings listed in /sys/power/state is written to it, the system
 will attempt to transition into the corresponding sleep state.  Refer to
-Documentation/power/states.txt for a description of each of those states.
+Documentation/admin-guide/pm/sleep-states.rst for a description of each of
+those states.
 
 /sys/power/disk controls the operating mode of hibernation (Suspend-to-Disk).
 Specifically, it tells the kernel what to do after creating a hibernation image.
@@ -42,7 +43,7 @@ The currently selected option is printed in square brackets.
 The 'platform' option is only available if the platform provides a special
 mechanism to put the system to sleep after creating a hibernation image (ACPI
 does that, for example).  The 'suspend' option is available if Suspend-to-RAM
-is supported.  Refer to Documentation/power/basic_pm_debugging.txt for the
+is supported.  Refer to Documentation/power/basic-pm-debugging.txt for the
 description of the 'test_resume' option.
 
 To select an option, write the string representing it to /sys/power/disk.
diff --git a/Documentation/power/pci.txt b/Documentation/power/pci.txt
index a1b7f7158930..704cd36079b8 100644
--- a/Documentation/power/pci.txt
+++ b/Documentation/power/pci.txt
@@ -8,7 +8,7 @@ management.  Based on previous work by Patrick Mochel <mochel@transmeta.com>
 
 This document only covers the aspects of power management specific to PCI
 devices.  For general description of the kernel's interfaces related to device
-power management refer to Documentation/power/admin-guide/devices.rst and
+power management refer to Documentation/driver-api/pm/devices.rst and
 Documentation/power/runtime_pm.txt.
 
 ---------------------------------------------------------------------------
@@ -417,7 +417,7 @@ pm->runtime_idle() callback.
 2.4. System-Wide Power Transitions
 ----------------------------------
 There are a few different types of system-wide power transitions, described in
-Documentation/power/admin-guide/devices.rst.  Each of them requires devices to be handled
+Documentation/driver-api/pm/devices.rst.  Each of them requires devices to be handled
 in a specific way and the PM core executes subsystem-level power management
 callbacks for this purpose.  They are executed in phases such that each phase
 involves executing the same subsystem-level callback for every device belonging
@@ -623,7 +623,7 @@ System restore requires a hibernation image to be loaded into memory and the
 pre-hibernation memory contents to be restored before the pre-hibernation system
 activity can be resumed.
 
-As described in Documentation/power/admin-guide/devices.rst, the hibernation image is loaded
+As described in Documentation/driver-api/pm/devices.rst, the hibernation image is loaded
 into memory by a fresh instance of the kernel, called the boot kernel, which in
 turn is loaded and run by a boot loader in the usual way.  After the boot kernel
 has loaded the image, it needs to replace its own code and data with the code
@@ -677,7 +677,7 @@ controlling the runtime power management of their devices.
 
 At the time of this writing there are two ways to define power management
 callbacks for a PCI device driver, the recommended one, based on using a
-dev_pm_ops structure described in Documentation/power/admin-guide/devices.rst, and the
+dev_pm_ops structure described in Documentation/driver-api/pm/devices.rst, and the
 "legacy" one, in which the .suspend(), .suspend_late(), .resume_early(), and
 .resume() callbacks from struct pci_driver are used.  The legacy approach,
 however, doesn't allow one to define runtime power management callbacks and is
@@ -961,6 +961,39 @@ dev_pm_ops to indicate that one suspend routine is to be pointed to by the
 .suspend(), .freeze(), and .poweroff() members and one resume routine is to
 be pointed to by the .resume(), .thaw(), and .restore() members.
 
+3.1.19. Driver Flags for Power Management
+
+The PM core allows device drivers to set flags that influence the handling of
+power management for the devices by the core itself and by middle layer code
+including the PCI bus type.  The flags should be set once at the driver probe
+time with the help of the dev_pm_set_driver_flags() function and they should not
+be updated directly afterwards.
+
+The DPM_FLAG_NEVER_SKIP flag prevents the PM core from using the direct-complete
+mechanism allowing device suspend/resume callbacks to be skipped if the device
+is in runtime suspend when the system suspend starts.  That also affects all of
+the ancestors of the device, so this flag should only be used if absolutely
+necessary.
+
+The DPM_FLAG_SMART_PREPARE flag instructs the PCI bus type to only return a
+positive value from pci_pm_prepare() if the ->prepare callback provided by the
+driver of the device returns a positive value.  That allows the driver to opt
+out from using the direct-complete mechanism dynamically.
+
+The DPM_FLAG_SMART_SUSPEND flag tells the PCI bus type that from the driver's
+perspective the device can be safely left in runtime suspend during system
+suspend.  That causes pci_pm_suspend(), pci_pm_freeze() and pci_pm_poweroff()
+to skip resuming the device from runtime suspend unless there are PCI-specific
+reasons for doing that.  Also, it causes pci_pm_suspend_late/noirq(),
+pci_pm_freeze_late/noirq() and pci_pm_poweroff_late/noirq() to return early
+if the device remains in runtime suspend in the beginning of the "late" phase
+of the system-wide transition under way.  Moreover, if the device is in
+runtime suspend in pci_pm_resume_noirq() or pci_pm_restore_noirq(), its runtime
+power management status will be changed to "active" (as it is going to be put
+into D0 going forward), but if it is in runtime suspend in pci_pm_thaw_noirq(),
+the function will set the power.direct_complete flag for it (to make the PM core
+skip the subsequent "thaw" callbacks for it) and return.
+
 3.2. Device Runtime Power Management
 ------------------------------------
 In addition to providing device power management callbacks PCI device drivers
@@ -1046,5 +1079,5 @@ PCI Local Bus Specification, Rev. 3.0
 PCI Bus Power Management Interface Specification, Rev. 1.2
 Advanced Configuration and Power Interface (ACPI) Specification, Rev. 3.0b
 PCI Express Base Specification, Rev. 2.0
-Documentation/power/admin-guide/devices.rst
+Documentation/driver-api/pm/devices.rst
 Documentation/power/runtime_pm.txt
diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt
index 21d2d48f87a2..19c5f7b1a7ba 100644
--- a/Documentation/power/pm_qos_interface.txt
+++ b/Documentation/power/pm_qos_interface.txt
@@ -98,8 +98,7 @@ Values are updated in response to changes of the request list.
 The target values of resume latency and active state latency tolerance are
 simply the minimum of the request values held in the parameter list elements.
 The PM QoS flags aggregate value is a gather (bitwise OR) of all list elements'
-values.  Two device PM QoS flags are defined currently: PM_QOS_FLAG_NO_POWER_OFF
-and PM_QOS_FLAG_REMOTE_WAKEUP.
+values.  One device PM QoS flag is defined currently: PM_QOS_FLAG_NO_POWER_OFF.
 
 Note: The aggregated target values are implemented in such a way that reading
 the aggregated value does not require any locking mechanism.
@@ -153,14 +152,14 @@ PM QoS list of resume latency constraints and remove sysfs attribute
 pm_qos_resume_latency_us from the device's power directory.
 
 int dev_pm_qos_expose_flags(device, value)
-Add a request to the device's PM QoS list of flags and create sysfs attributes
-pm_qos_no_power_off and pm_qos_remote_wakeup under the device's power directory
-allowing user space to change these flags' value.
+Add a request to the device's PM QoS list of flags and create sysfs attribute
+pm_qos_no_power_off under the device's power directory allowing user space to
+change the value of the PM_QOS_FLAG_NO_POWER_OFF flag.
 
 void dev_pm_qos_hide_flags(device)
 Drop the request added by dev_pm_qos_expose_flags() from the device's PM QoS list
-of flags and remove sysfs attributes pm_qos_no_power_off and pm_qos_remote_wakeup
-under the device's power directory.
+of flags and remove sysfs attribute pm_qos_no_power_off from the device's power
+directory.
 
 Notification mechanisms:
 The per-device PM QoS framework has a per-device notification tree.
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 625549d4c74a..57af2f7963ee 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -680,7 +680,7 @@ left in runtime suspend.  If that happens, the PM core will not execute any
 system suspend and resume callbacks for all of those devices, except for the
 complete callback, which is then entirely responsible for handling the device
 as appropriate.  This only applies to system suspend transitions that are not
-related to hibernation (see Documentation/power/admin-guide/devices.rst for more
+related to hibernation (see Documentation/driver-api/pm/devices.rst for more
 information).
 
 The PM core does its best to reduce the probability of race conditions between
diff --git a/Documentation/power/suspend-and-cpuhotplug.txt b/Documentation/power/suspend-and-cpuhotplug.txt
index 2fc909502db5..31abd04b9572 100644
--- a/Documentation/power/suspend-and-cpuhotplug.txt
+++ b/Documentation/power/suspend-and-cpuhotplug.txt
@@ -232,7 +232,7 @@ d. Handling microcode update during suspend/hibernate:
    hibernate/restore cycle.]
 
    In the current design of the kernel however, during a CPU offline operation
-   as part of the suspend/hibernate cycle (the CPU_DEAD_FROZEN notification),
+   as part of the suspend/hibernate cycle (cpuhp_tasks_frozen is set),
    the existing copy of microcode image in the kernel is not freed up.
    And during the CPU online operations (during resume/restore), since the
    kernel finds that it already has copies of the microcode images for all the
@@ -252,10 +252,9 @@ Yes, they are listed below:
    the _cpu_down() and _cpu_up() functions is *always* 0.
    This might not reflect the true current state of the system, since the
    tasks could have been frozen by an out-of-band event such as a suspend
-   operation in progress. Hence, it will lead to wrong notifications being
-   sent during the cpu online/offline events (eg, CPU_ONLINE notification
-   instead of CPU_ONLINE_FROZEN) which in turn will lead to execution of
-   inappropriate code by the callbacks registered for such CPU hotplug events.
+   operation in progress. Hence, the cpuhp_tasks_frozen variable will not
+   reflect the frozen state and the CPU hotplug callbacks which evaluate
+   that variable might execute the wrong code path.
 
 2. If a regular CPU hotplug stress test happens to race with the freezer due
    to a suspend operation in progress at the same time, then we could hit the
diff --git a/Documentation/process/3.Early-stage.rst b/Documentation/process/3.Early-stage.rst
index af2c0af931d6..be00716071d4 100644
--- a/Documentation/process/3.Early-stage.rst
+++ b/Documentation/process/3.Early-stage.rst
@@ -178,7 +178,7 @@ matter is (1) kernel developers tend to be busy, (2) there is no shortage
 of people with grand plans and little code (or even prospect of code) to
 back them up, and (3) nobody is obligated to review or comment on ideas
 posted by others.  Beyond that, high-level designs often hide problems
-which are only reviewed when somebody actually tries to implement those
+which are only revealed when somebody actually tries to implement those
 designs; for that reason, kernel developers would rather see the code.
 
 If a request-for-comments posting yields little in the way of comments, do
diff --git a/Documentation/process/4.Coding.rst b/Documentation/process/4.Coding.rst
index 6df19943dd4d..26b106071364 100644
--- a/Documentation/process/4.Coding.rst
+++ b/Documentation/process/4.Coding.rst
@@ -307,7 +307,7 @@ variety of potential coding problems; it can also propose fixes for those
 problems.  Quite a few "semantic patches" for the kernel have been packaged
 under the scripts/coccinelle directory; running "make coccicheck" will run
 through those semantic patches and report on any problems found.  See
-Documentation/coccinelle.txt for more information.
+Documentation/dev-tools/coccinelle.rst for more information.
 
 Other kinds of portability errors are best found by compiling your code for
 other architectures.  If you do not happen to have an S/390 system or a
diff --git a/Documentation/process/index.rst b/Documentation/process/index.rst
index 82fc399fcd33..a430f6eee756 100644
--- a/Documentation/process/index.rst
+++ b/Documentation/process/index.rst
@@ -25,6 +25,8 @@ Below are the essential guides that every developer should read.
    submitting-patches
    coding-style
    email-clients
+   kernel-enforcement-statement
+   kernel-driver-statement
 
 Other guides to the community that are of interest to most developers are: 
 
diff --git a/Documentation/process/kernel-driver-statement.rst b/Documentation/process/kernel-driver-statement.rst
new file mode 100644
index 000000000000..60d9d868f300
--- /dev/null
+++ b/Documentation/process/kernel-driver-statement.rst
@@ -0,0 +1,199 @@
+Kernel Driver Statement
+-----------------------
+
+Position Statement on Linux Kernel Modules
+==========================================
+
+
+We, the undersigned Linux kernel developers, consider any closed-source
+Linux kernel module or driver to be harmful and undesirable. We have
+repeatedly found them to be detrimental to Linux users, businesses, and
+the greater Linux ecosystem. Such modules negate the openness,
+stability, flexibility, and maintainability of the Linux development
+model and shut their users off from the expertise of the Linux
+community. Vendors that provide closed-source kernel modules force their
+customers to give up key Linux advantages or choose new vendors.
+Therefore, in order to take full advantage of the cost savings and
+shared support benefits open source has to offer, we urge vendors to
+adopt a policy of supporting their customers on Linux with open-source
+kernel code.
+
+We speak only for ourselves, and not for any company we might work for
+today, have in the past, or will in the future.
+
+ - Dave Airlie
+ - Nick Andrew
+ - Jens Axboe
+ - Ralf Baechle
+ - Felipe Balbi
+ - Ohad Ben-Cohen
+ - Muli Ben-Yehuda
+ - Jiri Benc
+ - Arnd Bergmann
+ - Thomas Bogendoerfer
+ - Vitaly Bordug
+ - James Bottomley
+ - Josh Boyer
+ - Neil Brown
+ - Mark Brown
+ - David Brownell
+ - Michael Buesch
+ - Franck Bui-Huu
+ - Adrian Bunk
+ - François Cami
+ - Ralph Campbell
+ - Luiz Fernando N. Capitulino
+ - Mauro Carvalho Chehab
+ - Denis Cheng
+ - Jonathan Corbet
+ - Glauber Costa
+ - Alan Cox
+ - Magnus Damm
+ - Ahmed S. Darwish
+ - Robert P. J. Day
+ - Hans de Goede
+ - Arnaldo Carvalho de Melo
+ - Helge Deller
+ - Jean Delvare
+ - Mathieu Desnoyers
+ - Sven-Thorsten Dietrich
+ - Alexey Dobriyan
+ - Daniel Drake
+ - Alex Dubov
+ - Randy Dunlap
+ - Michael Ellerman
+ - Pekka Enberg
+ - Jan Engelhardt
+ - Mark Fasheh
+ - J. Bruce Fields
+ - Larry Finger
+ - Jeremy Fitzhardinge
+ - Mike Frysinger
+ - Kumar Gala
+ - Robin Getz
+ - Liam Girdwood
+ - Jan-Benedict Glaw
+ - Thomas Gleixner
+ - Brice Goglin
+ - Cyrill Gorcunov
+ - Andy Gospodarek
+ - Thomas Graf
+ - Krzysztof Halasa
+ - Harvey Harrison
+ - Stephen Hemminger
+ - Michael Hennerich
+ - Tejun Heo
+ - Benjamin Herrenschmidt
+ - Kristian Høgsberg
+ - Henrique de Moraes Holschuh
+ - Marcel Holtmann
+ - Mike Isely
+ - Takashi Iwai
+ - Olof Johansson
+ - Dave Jones
+ - Jesper Juhl
+ - Matthias Kaehlcke
+ - Kenji Kaneshige
+ - Jan Kara
+ - Jeremy Kerr
+ - Russell King
+ - Olaf Kirch
+ - Roel Kluin
+ - Hans-Jürgen Koch
+ - Auke Kok
+ - Peter Korsgaard
+ - Jiri Kosina
+ - Mariusz Kozlowski
+ - Greg Kroah-Hartman
+ - Michael Krufky
+ - Aneesh Kumar
+ - Clemens Ladisch
+ - Christoph Lameter
+ - Gunnar Larisch
+ - Anders Larsen
+ - Grant Likely
+ - John W. Linville
+ - Yinghai Lu
+ - Tony Luck
+ - Pavel Machek
+ - Matt Mackall
+ - Paul Mackerras
+ - Roland McGrath
+ - Patrick McHardy
+ - Kyle McMartin
+ - Paul Menage
+ - Thierry Merle
+ - Eric Miao
+ - Akinobu Mita
+ - Ingo Molnar
+ - James Morris
+ - Andrew Morton
+ - Paul Mundt
+ - Oleg Nesterov
+ - Luca Olivetti
+ - S.Çağlar Onur
+ - Pierre Ossman
+ - Keith Owens
+ - Venkatesh Pallipadi
+ - Nick Piggin
+ - Nicolas Pitre
+ - Evgeniy Polyakov
+ - Richard Purdie
+ - Mike Rapoport
+ - Sam Ravnborg
+ - Gerrit Renker
+ - Stefan Richter
+ - David Rientjes
+ - Luis R. Rodriguez
+ - Stefan Roese
+ - Francois Romieu
+ - Rami Rosen
+ - Stephen Rothwell
+ - Maciej W. Rozycki
+ - Mark Salyzyn
+ - Yoshinori Sato
+ - Deepak Saxena
+ - Holger Schurig
+ - Amit Shah
+ - Yoshihiro Shimoda
+ - Sergei Shtylyov
+ - Kay Sievers
+ - Sebastian Siewior
+ - Rik Snel
+ - Jes Sorensen
+ - Alexey Starikovskiy
+ - Alan Stern
+ - Timur Tabi
+ - Hirokazu Takata
+ - Eliezer Tamir
+ - Eugene Teo
+ - Doug Thompson
+ - FUJITA Tomonori
+ - Dmitry Torokhov
+ - Marcelo Tosatti
+ - Steven Toth
+ - Theodore Tso
+ - Matthias Urlichs
+ - Geert Uytterhoeven
+ - Arjan van de Ven
+ - Ivo van Doorn
+ - Rik van Riel
+ - Wim Van Sebroeck
+ - Hans Verkuil
+ - Horst H. von Brand
+ - Dmitri Vorobiev
+ - Anton Vorontsov
+ - Daniel Walker
+ - Johannes Weiner
+ - Harald Welte
+ - Matthew Wilcox
+ - Dan J. Williams
+ - Darrick J. Wong
+ - David Woodhouse
+ - Chris Wright
+ - Bryan Wu
+ - Rafael J. Wysocki
+ - Herbert Xu
+ - Vlad Yasevich
+ - Peter Zijlstra
+ - Bartlomiej Zolnierkiewicz
diff --git a/Documentation/process/kernel-enforcement-statement.rst b/Documentation/process/kernel-enforcement-statement.rst
new file mode 100644
index 000000000000..b3170671a1df
--- /dev/null
+++ b/Documentation/process/kernel-enforcement-statement.rst
@@ -0,0 +1,157 @@
+Linux Kernel Enforcement Statement
+----------------------------------
+
+As developers of the Linux kernel, we have a keen interest in how our software
+is used and how the license for our software is enforced.  Compliance with the
+reciprocal sharing obligations of GPL-2.0 is critical to the long-term
+sustainability of our software and community.
+
+Although there is a right to enforce the separate copyright interests in the
+contributions made to our community, we share an interest in ensuring that
+individual enforcement actions are conducted in a manner that benefits our
+community and do not have an unintended negative impact on the health and
+growth of our software ecosystem.  In order to deter unhelpful enforcement
+actions, we agree that it is in the best interests of our development
+community to undertake the following commitment to users of the Linux kernel
+on behalf of ourselves and any successors to our copyright interests:
+
+    Notwithstanding the termination provisions of the GPL-2.0, we agree that
+    it is in the best interests of our development community to adopt the
+    following provisions of GPL-3.0 as additional permissions under our
+    license with respect to any non-defensive assertion of rights under the
+    license.
+
+	However, if you cease all violation of this License, then your license
+	from a particular copyright holder is reinstated (a) provisionally,
+	unless and until the copyright holder explicitly and finally
+	terminates your license, and (b) permanently, if the copyright holder
+	fails to notify you of the violation by some reasonable means prior to
+	60 days after the cessation.
+
+	Moreover, your license from a particular copyright holder is
+	reinstated permanently if the copyright holder notifies you of the
+	violation by some reasonable means, this is the first time you have
+	received notice of violation of this License (for any work) from that
+	copyright holder, and you cure the violation prior to 30 days after
+	your receipt of the notice.
+
+Our intent in providing these assurances is to encourage more use of the
+software.  We want companies and individuals to use, modify and distribute
+this software.  We want to work with users in an open and transparent way to
+eliminate any uncertainty about our expectations regarding compliance or
+enforcement that might limit adoption of our software.  We view legal action
+as a last resort, to be initiated only when other community efforts have
+failed to resolve the problem.
+
+Finally, once a non-compliance issue is resolved, we hope the user will feel
+welcome to join us in our efforts on this project.  Working together, we will
+be stronger.
+
+Except where noted below, we speak only for ourselves, and not for any company
+we might work for today, have in the past, or will in the future.
+
+  - Laura Abbott
+  - Bjorn Andersson (Linaro)
+  - Andrea Arcangeli
+  - Neil Armstrong
+  - Jens Axboe
+  - Pablo Neira Ayuso
+  - Khalid Aziz
+  - Ralf Baechle
+  - Felipe Balbi
+  - Arnd Bergmann
+  - Ard Biesheuvel
+  - Tim Bird
+  - Paolo Bonzini
+  - Christian Borntraeger
+  - Mark Brown (Linaro)
+  - Paul Burton
+  - Javier Martinez Canillas
+  - Rob Clark
+  - Jonathan Corbet
+  - Dennis Dalessandro
+  - Vivien Didelot (Savoir-faire Linux)
+  - Hans de Goede
+  - Mel Gorman (SUSE)
+  - Sven Eckelmann
+  - Alex Elder (Linaro)
+  - Fabio Estevam
+  - Larry Finger
+  - Bhumika Goyal
+  - Andy Gross
+  - Juergen Gross
+  - Shawn Guo
+  - Ulf Hansson
+  - Stephen Hemminger (Microsoft)
+  - Tejun Heo
+  - Rob Herring
+  - Masami Hiramatsu
+  - Michal Hocko
+  - Simon Horman
+  - Johan Hovold (Hovold Consulting AB)
+  - Christophe JAILLET
+  - Olof Johansson
+  - Lee Jones (Linaro)
+  - Heiner Kallweit
+  - Srinivas Kandagatla
+  - Jan Kara
+  - Shuah Khan (Samsung)
+  - David Kershner
+  - Jaegeuk Kim
+  - Namhyung Kim
+  - Colin Ian King
+  - Jeff Kirsher
+  - Greg Kroah-Hartman (Linux Foundation)
+  - Christian König
+  - Vinod Koul
+  - Krzysztof Kozlowski
+  - Viresh Kumar
+  - Aneesh Kumar K.V
+  - Julia Lawall
+  - Doug Ledford
+  - Chuck Lever (Oracle)
+  - Daniel Lezcano
+  - Shaohua Li
+  - Xin Long
+  - Tony Luck
+  - Catalin Marinas (Arm Ltd)
+  - Mike Marshall
+  - Chris Mason
+  - Paul E. McKenney
+  - David S. Miller
+  - Ingo Molnar
+  - Kuninori Morimoto
+  - Trond Myklebust
+  - Martin K. Petersen (Oracle)
+  - Borislav Petkov
+  - Jiri Pirko
+  - Josh Poimboeuf
+  - Sebastian Reichel (Collabora)
+  - Guenter Roeck
+  - Joerg Roedel
+  - Leon Romanovsky
+  - Steven Rostedt (VMware)
+  - Frank Rowand
+  - Ivan Safonov
+  - Anna Schumaker
+  - Jes Sorensen
+  - K.Y. Srinivasan
+  - Heiko Stuebner
+  - Jiri Kosina (SUSE)
+  - Willy Tarreau
+  - Dmitry Torokhov
+  - Linus Torvalds
+  - Thierry Reding
+  - Rik van Riel
+  - Geert Uytterhoeven (Glider bvba)
+  - Eduardo Valentin (Amazon.com)
+  - Daniel Vetter
+  - Linus Walleij
+  - Richard Weinberger
+  - Dan Williams
+  - Rafael J. Wysocki
+  - Arvind Yadav
+  - Masahiro Yamada
+  - Wei Yongjun
+  - Lv Zheng
+  - Marc Zyngier (Arm Ltd)
diff --git a/Documentation/process/submitting-drivers.rst b/Documentation/process/submitting-drivers.rst
index afb82ee0cbea..b38bf2054ce3 100644
--- a/Documentation/process/submitting-drivers.rst
+++ b/Documentation/process/submitting-drivers.rst
@@ -117,7 +117,7 @@ PM support:
 		anything.  For the driver testing instructions see
 		Documentation/power/drivers-testing.txt and for a relatively
 		complete overview of the power management issues related to
-		drivers see Documentation/power/admin-guide/devices.rst .
+		drivers see Documentation/driver-api/pm/devices.rst.
 
 Control:
 		In general if there is active maintenance of a driver by
diff --git a/Documentation/process/submitting-patches.rst b/Documentation/process/submitting-patches.rst
index 733478ade91b..1ef19d3a3eee 100644
--- a/Documentation/process/submitting-patches.rst
+++ b/Documentation/process/submitting-patches.rst
@@ -621,14 +621,14 @@ The canonical patch subject line is::
 
 The canonical patch message body contains the following:
 
-  - A ``from`` line specifying the patch author (only needed if the person
-    sending the patch is not the author).
-
-  - An empty line.
+  - A ``from`` line specifying the patch author, followed by an empty
+    line (only needed if the person sending the patch is not the author).
 
   - The body of the explanation, line wrapped at 75 columns, which will
     be copied to the permanent changelog to describe this patch.
 
+  - An empty line.
+
   - The ``Signed-off-by:`` lines, described above, which will
     also go in the changelog.
 
diff --git a/Documentation/security/LSM.rst b/Documentation/security/LSM.rst
index d75778b0fa10..98522e0e1ee2 100644
--- a/Documentation/security/LSM.rst
+++ b/Documentation/security/LSM.rst
@@ -5,7 +5,7 @@ Linux Security Module Development
 Based on https://lkml.org/lkml/2007/10/26/215,
 a new LSM is accepted into the kernel when its intent (a description of
 what it tries to protect against and in what cases one would expect to
-use it) has been appropriately documented in ``Documentation/security/LSM``.
+use it) has been appropriately documented in ``Documentation/security/LSM.rst``.
 This allows an LSM's code to be easily compared to its goals, and so
 that end users and distros can make a more informed decision about which
 LSMs suit their requirements.
diff --git a/Documentation/security/credentials.rst b/Documentation/security/credentials.rst
index 038a7e19eff9..66a2e24939d8 100644
--- a/Documentation/security/credentials.rst
+++ b/Documentation/security/credentials.rst
@@ -196,7 +196,7 @@ The Linux kernel supports the following types of credentials:
      When a process accesses a key, if not already present, it will normally be
      cached on one of these keyrings for future accesses to find.
 
-     For more information on using keys, see Documentation/security/keys.txt.
+     For more information on using keys, see ``Documentation/security/keys/*``.
 
  5. LSM
 
diff --git a/Documentation/security/keys/request-key.rst b/Documentation/security/keys/request-key.rst
index b2d16abaa9e9..21e27238cec6 100644
--- a/Documentation/security/keys/request-key.rst
+++ b/Documentation/security/keys/request-key.rst
@@ -3,7 +3,7 @@ Key Request Service
 ===================
 
 The key request service is part of the key retention service (refer to
-Documentation/security/core.rst).  This document explains more fully how
+Documentation/security/keys/core.rst).  This document explains more fully how
 the requesting algorithm works.
 
 The process starts by either the kernel requesting a service by calling
diff --git a/Documentation/sound/cards/joystick.rst b/Documentation/sound/cards/joystick.rst
index a6e468c81d02..488946fc1079 100644
--- a/Documentation/sound/cards/joystick.rst
+++ b/Documentation/sound/cards/joystick.rst
@@ -11,7 +11,7 @@ General
 
 First of all, you need to enable GAMEPORT support on Linux kernel for
 using a joystick with the ALSA driver.  For the details of gameport
-support, refer to Documentation/input/joystick.txt.
+support, refer to Documentation/input/joydev/joystick.rst.
 
 The joystick support of ALSA drivers is different between ISA and PCI
 cards.  In the case of ISA (PnP) cards, it's usually handled by the
diff --git a/Documentation/sound/hd-audio/notes.rst b/Documentation/sound/hd-audio/notes.rst
index f59c3cdbfaf4..9f7347830ba4 100644
--- a/Documentation/sound/hd-audio/notes.rst
+++ b/Documentation/sound/hd-audio/notes.rst
@@ -192,7 +192,7 @@ preset model instead of PCI (and codec-) SSID look-up.
 What ``model`` option values are available depends on the codec chip.
 Check your codec chip from the codec proc file (see "Codec Proc-File"
 section below).  It will show the vendor/product name of your codec
-chip.  Then, see Documentation/sound/HD-Audio-Models.rst file,
+chip.  Then, see Documentation/sound/hd-audio/models.rst file,
 the section of HD-audio driver.  You can find a list of codecs
 and ``model`` options belonging to each codec.  For example, for Realtek
 ALC262 codec chip, pass ``model=ultra`` for devices that are compatible
diff --git a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
index 58ffa3f5bda7..a0b268466cb1 100644
--- a/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
+++ b/Documentation/sound/kernel-api/writing-an-alsa-driver.rst
@@ -2498,7 +2498,7 @@ Mic boost
 Mic-boost switch is set as “Mic Boost� or “Mic Boost (6dB)�.
 
 More precise information can be found in
-``Documentation/sound/alsa/ControlNames.txt``.
+``Documentation/sound/designs/control-names.rst``.
 
 Access Flags
 ------------
diff --git a/Documentation/sysctl/README b/Documentation/sysctl/README
index 91f54ffa0077..d5f24ab0ecc3 100644
--- a/Documentation/sysctl/README
+++ b/Documentation/sysctl/README
@@ -60,7 +60,7 @@ debug/		<empty>
 dev/		device specific information (eg dev/cdrom/info)
 fs/		specific filesystems
 		filehandle, inode, dentry and quota tuning
-		binfmt_misc <Documentation/binfmt_misc.txt>
+		binfmt_misc <Documentation/admin-guide/binfmt-misc.rst>
 kernel/		global kernel info / tuning
 		miscellaneous stuff
 net/		networking stuff, for documentation look in:
diff --git a/Documentation/sysctl/fs.txt b/Documentation/sysctl/fs.txt
index 35e17f748ca7..6c00c1e2743f 100644
--- a/Documentation/sysctl/fs.txt
+++ b/Documentation/sysctl/fs.txt
@@ -277,7 +277,7 @@ in a mount namespace.
 ----------------------------------------------------------
 
 Documentation for the files in /proc/sys/fs/binfmt_misc is
-in Documentation/binfmt_misc.txt.
+in Documentation/admin-guide/binfmt-misc.rst.
 
 
 3. /proc/sys/fs/mqueue - POSIX message queues filesystem
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index ce61d1fe08ca..694968c7523c 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -75,6 +75,7 @@ show up in /proc/sys/kernel:
 - reboot-cmd                  [ SPARC only ]
 - rtsig-max
 - rtsig-nr
+- seccomp/                    ==> Documentation/userspace-api/seccomp_filter.rst
 - sem
 - sem_next_id		      [ sysv ipc ]
 - sg-big-buff                 [ generic SCSI device (sg) ]
diff --git a/Documentation/timers/highres.txt b/Documentation/timers/highres.txt
index e8789976e77c..9d88f67781c2 100644
--- a/Documentation/timers/highres.txt
+++ b/Documentation/timers/highres.txt
@@ -4,10 +4,10 @@ High resolution timers and dynamic ticks design notes
 Further information can be found in the paper of the OLS 2006 talk "hrtimers
 and beyond". The paper is part of the OLS 2006 Proceedings Volume 1, which can
 be found on the OLS website:
-http://www.linuxsymposium.org/2006/linuxsymposium_procv1.pdf
+https://www.kernel.org/doc/ols/2006/ols2006v1-pages-333-346.pdf
 
 The slides to this talk are available from:
-http://tglx.de/projects/hrtimers/ols2006-hrtimers.pdf
+http://www.cs.columbia.edu/~nahum/w6998/papers/ols2006-hrtimers-slides.pdf
 
 The slides contain five figures (pages 2, 15, 18, 20, 22), which illustrate the
 changes in the time(r) related Linux subsystems. Figure #1 (p. 2) shows the
diff --git a/Documentation/trace/ftrace-uses.rst b/Documentation/trace/ftrace-uses.rst
new file mode 100644
index 000000000000..8494a801d341
--- /dev/null
+++ b/Documentation/trace/ftrace-uses.rst
@@ -0,0 +1,293 @@
+=================================
+Using ftrace to hook to functions
+=================================
+
+.. Copyright 2017 VMware Inc.
+..   Author:   Steven Rostedt <srostedt@goodmis.org>
+..  License:   The GNU Free Documentation License, Version 1.2
+..               (dual licensed under the GPL v2)
+
+Written for: 4.14
+
+Introduction
+============
+
+The ftrace infrastructure was originially created to attach callbacks to the
+beginning of functions in order to record and trace the flow of the kernel.
+But callbacks to the start of a function can have other use cases. Either
+for live kernel patching, or for security monitoring. This document describes
+how to use ftrace to implement your own function callbacks.
+
+
+The ftrace context
+==================
+
+WARNING: The ability to add a callback to almost any function within the
+kernel comes with risks. A callback can be called from any context
+(normal, softirq, irq, and NMI). Callbacks can also be called just before
+going to idle, during CPU bring up and takedown, or going to user space.
+This requires extra care to what can be done inside a callback. A callback
+can be called outside the protective scope of RCU.
+
+The ftrace infrastructure has some protections agains recursions and RCU
+but one must still be very careful how they use the callbacks.
+
+
+The ftrace_ops structure
+========================
+
+To register a function callback, a ftrace_ops is required. This structure
+is used to tell ftrace what function should be called as the callback
+as well as what protections the callback will perform and not require
+ftrace to handle.
+
+There is only one field that is needed to be set when registering
+an ftrace_ops with ftrace::
+
+.. code-block: c
+
+ struct ftrace_ops ops = {
+       .func			= my_callback_func,
+       .flags			= MY_FTRACE_FLAGS
+       .private			= any_private_data_structure,
+ };
+
+Both .flags and .private are optional. Only .func is required.
+
+To enable tracing call::
+
+.. c:function::  register_ftrace_function(&ops);
+
+To disable tracing call::
+
+.. c:function::  unregister_ftrace_function(&ops);
+
+The above is defined by including the header::
+
+.. c:function:: #include <linux/ftrace.h>
+
+The registered callback will start being called some time after the
+register_ftrace_function() is called and before it returns. The exact time
+that callbacks start being called is dependent upon architecture and scheduling
+of services. The callback itself will have to handle any synchronization if it
+must begin at an exact moment.
+
+The unregister_ftrace_function() will guarantee that the callback is
+no longer being called by functions after the unregister_ftrace_function()
+returns. Note that to perform this guarantee, the unregister_ftrace_function()
+may take some time to finish.
+
+
+The callback function
+=====================
+
+The prototype of the callback function is as follows (as of v4.14)::
+
+.. code-block: c
+
+ void callback_func(unsigned long ip, unsigned long parent_ip,
+		    struct ftrace_ops *op, struct pt_regs *regs);
+
+@ip
+	 This is the instruction pointer of the function that is being traced.
+      	 (where the fentry or mcount is within the function)
+
+@parent_ip
+	This is the instruction pointer of the function that called the
+	the function being traced (where the call of the function occurred).
+
+@op
+	This is a pointer to ftrace_ops that was used to register the callback.
+	This can be used to pass data to the callback via the private pointer.
+
+@regs
+	If the FTRACE_OPS_FL_SAVE_REGS or FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED
+	flags are set in the ftrace_ops structure, then this will be pointing
+	to the pt_regs structure like it would be if an breakpoint was placed
+	at the start of the function where ftrace was tracing. Otherwise it
+	either contains garbage, or NULL.
+
+
+The ftrace FLAGS
+================
+
+The ftrace_ops flags are all defined and documented in include/linux/ftrace.h.
+Some of the flags are used for internal infrastructure of ftrace, but the
+ones that users should be aware of are the following:
+
+FTRACE_OPS_FL_SAVE_REGS
+	If the callback requires reading or modifying the pt_regs
+	passed to the callback, then it must set this flag. Registering
+	a ftrace_ops with this flag set on an architecture that does not
+	support passing of pt_regs to the callback will fail.
+
+FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED
+	Similar to SAVE_REGS but the registering of a
+	ftrace_ops on an architecture that does not support passing of regs
+	will not fail with this flag set. But the callback must check if
+	regs is NULL or not to determine if the architecture supports it.
+
+FTRACE_OPS_FL_RECURSION_SAFE
+	By default, a wrapper is added around the callback to
+	make sure that recursion of the function does not occur. That is,
+	if a function that is called as a result of the callback's execution
+	is also traced, ftrace will prevent the callback from being called
+	again. But this wrapper adds some overhead, and if the callback is
+	safe from recursion, it can set this flag to disable the ftrace
+	protection.
+
+	Note, if this flag is set, and recursion does occur, it could cause
+	the system to crash, and possibly reboot via a triple fault.
+
+	It is OK if another callback traces a function that is called by a
+	callback that is marked recursion safe. Recursion safe callbacks
+	must never trace any function that are called by the callback
+	itself or any nested functions that those functions call.
+
+	If this flag is set, it is possible that the callback will also
+	be called with preemption enabled (when CONFIG_PREEMPT is set),
+	but this is not guaranteed.
+
+FTRACE_OPS_FL_IPMODIFY
+	Requires FTRACE_OPS_FL_SAVE_REGS set. If the callback is to "hijack"
+	the traced function (have another function called instead of the
+	traced function), it requires setting this flag. This is what live
+	kernel patches uses. Without this flag the pt_regs->ip can not be
+	modified.
+
+	Note, only one ftrace_ops with FTRACE_OPS_FL_IPMODIFY set may be
+	registered to any given function at a time.
+
+FTRACE_OPS_FL_RCU
+	If this is set, then the callback will only be called by functions
+	where RCU is "watching". This is required if the callback function
+	performs any rcu_read_lock() operation.
+
+	RCU stops watching when the system goes idle, the time when a CPU
+	is taken down and comes back online, and when entering from kernel
+	to user space and back to kernel space. During these transitions,
+	a callback may be executed and RCU synchronization will not protect
+	it.
+
+
+Filtering which functions to trace
+==================================
+
+If a callback is only to be called from specific functions, a filter must be
+set up. The filters are added by name, or ip if it is known.
+
+.. code-block: c
+
+ int ftrace_set_filter(struct ftrace_ops *ops, unsigned char *buf,
+		       int len, int reset);
+
+@ops
+	The ops to set the filter with
+
+@buf
+	The string that holds the function filter text.
+@len
+	The length of the string.
+
+@reset
+	Non-zero to reset all filters before applying this filter.
+
+Filters denote which functions should be enabled when tracing is enabled.
+If @buf is NULL and reset is set, all functions will be enabled for tracing.
+
+The @buf can also be a glob expression to enable all functions that
+match a specific pattern.
+
+See Filter Commands in :file:`Documentation/trace/ftrace.txt`.
+
+To just trace the schedule function::
+
+.. code-block: c
+
+ ret = ftrace_set_filter(&ops, "schedule", strlen("schedule"), 0);
+
+To add more functions, call the ftrace_set_filter() more than once with the
+@reset parameter set to zero. To remove the current filter set and replace it
+with new functions defined by @buf, have @reset be non-zero.
+
+To remove all the filtered functions and trace all functions::
+
+.. code-block: c
+
+  ret = ftrace_set_filter(&ops, NULL, 0, 1);
+
+
+Sometimes more than one function has the same name. To trace just a specific
+function in this case, ftrace_set_filter_ip() can be used.
+
+.. code-block: c
+
+ ret = ftrace_set_filter_ip(&ops, ip, 0, 0);
+
+Although the ip must be the address where the call to fentry or mcount is
+located in the function. This function is used by perf and kprobes that
+gets the ip address from the user (usually using debug info from the kernel).
+
+If a glob is used to set the filter, functions can be added to a "notrace"
+list that will prevent those functions from calling the callback.
+The "notrace" list takes precedence over the "filter" list. If the
+two lists are non-empty and contain the same functions, the callback will not
+be called by any function.
+
+An empty "notrace" list means to allow all functions defined by the filter
+to be traced.
+
+.. code-block: c
+
+  int ftrace_set_notrace(struct ftrace_ops *ops, unsigned char *buf,
+			 int len, int reset);
+
+This takes the same parameters as ftrace_set_filter() but will add the
+functions it finds to not be traced. This is a separate list from the
+filter list, and this function does not modify the filter list.
+
+A non-zero @reset will clear the "notrace" list before adding functions
+that match @buf to it.
+
+Clearing the "notrace" list is the same as clearing the filter list
+
+.. code-block: c
+
+  ret = ftrace_set_notrace(&ops, NULL, 0, 1);
+
+The filter and notrace lists may be changed at any time. If only a set of
+functions should call the callback, it is best to set the filters before
+registering the callback. But the changes may also happen after the callback
+has been registered.
+
+If a filter is in place, and the @reset is non-zero, and @buf contains a
+matching glob to functions, the switch will happen during the time of
+the ftrace_set_filter() call. At no time will all functions call the callback.
+
+.. code-block: c
+
+	ftrace_set_filter(&ops, "schedule", strlen("schedule"), 1);
+
+	register_ftrace_function(&ops);
+
+	msleep(10);
+
+	ftrace_set_filter(&ops, "try_to_wake_up", strlen("try_to_wake_up"), 1);
+
+is not the same as:
+
+.. code-block: c
+
+	ftrace_set_filter(&ops, "schedule", strlen("schedule"), 1);
+
+	register_ftrace_function(&ops);
+
+	msleep(10);
+
+	ftrace_set_filter(&ops, NULL, 0, 1);
+
+	ftrace_set_filter(&ops, "try_to_wake_up", strlen("try_to_wake_up"), 0);
+
+As the latter will have a short time where all functions will call
+the callback, between the time of the reset, and the time of the
+new setting of the filter.
diff --git a/Documentation/trace/intel_th.txt b/Documentation/trace/intel_th.txt
index f92070e7dde0..7a57165c2492 100644
--- a/Documentation/trace/intel_th.txt
+++ b/Documentation/trace/intel_th.txt
@@ -37,7 +37,7 @@ description is at Documentation/ABI/testing/sysfs-bus-intel_th-devices-gth.
 
 STH registers an stm class device, through which it provides interface
 to userspace and kernelspace software trace sources. See
-Documentation/tracing/stm.txt for more information on that.
+Documentation/trace/stm.txt for more information on that.
 
 MSU can be configured to collect trace data into a system memory
 buffer, which can later on be read from its device nodes via read() or
diff --git a/Documentation/translations/ko_KR/memory-barriers.txt b/Documentation/translations/ko_KR/memory-barriers.txt
index a7a813258013..ec3b46e27b7a 100644
--- a/Documentation/translations/ko_KR/memory-barriers.txt
+++ b/Documentation/translations/ko_KR/memory-barriers.txt
@@ -1858,18 +1858,6 @@ Mandatory 배리어들ì�€ SMP 시스템ì—�ì„œë�„ UP 시스템ì—�ì„œë�„ SMP 효ê³
      참고하세요.
 
 
- (*) lockless_dereference();
-
-     � 함수는 smp_read_barrier_depends() ��터 �존성 배리어를 사용하는
-     ��터 �어오기 래�(wrapper) 함수로 ��� 수 있습니다.
-
-     �체� ��프타임� RCU 외� 메커니즘으로 관리�다는 �� 제외하면
-     rcu_dereference() 와� 유사한�, 예를 들면 �체가 시스템� 꺼질 때�만
-     제거�는 경우 등입니다.  �한, lockless_dereference() � RCU 와 함께
-     사용�수�, RCU 없� 사용� 수� 있는 �부 ��터 구조� 사용�고
-     있습니다.
-
-
  (*) dma_wmb();
  (*) dma_rmb();
 
diff --git a/Documentation/usb/gadget-testing.txt b/Documentation/usb/gadget-testing.txt
index fbc397d17e98..441a4b9b666f 100644
--- a/Documentation/usb/gadget-testing.txt
+++ b/Documentation/usb/gadget-testing.txt
@@ -773,7 +773,7 @@ host:
 # cat /dev/usb/lp0
 
 More advanced testing can be done with the prn_example
-described in Documentation/usb/gadget-printer.txt.
+described in Documentation/usb/gadget_printer.txt.
 
 
 20. UAC1 function (virtual ALSA card, using u_audio API)
diff --git a/Documentation/userspace-api/seccomp_filter.rst b/Documentation/userspace-api/seccomp_filter.rst
index f71eb5ef1f2d..099c412951d6 100644
--- a/Documentation/userspace-api/seccomp_filter.rst
+++ b/Documentation/userspace-api/seccomp_filter.rst
@@ -87,11 +87,16 @@ Return values
 A seccomp filter may return any of the following values. If multiple
 filters exist, the return value for the evaluation of a given system
 call will always use the highest precedent value. (For example,
-``SECCOMP_RET_KILL`` will always take precedence.)
+``SECCOMP_RET_KILL_PROCESS`` will always take precedence.)
 
 In precedence order, they are:
 
-``SECCOMP_RET_KILL``:
+``SECCOMP_RET_KILL_PROCESS``:
+	Results in the entire process exiting immediately without executing
+	the system call.  The exit status of the task (``status & 0x7f``)
+	will be ``SIGSYS``, not ``SIGKILL``.
+
+``SECCOMP_RET_KILL_THREAD``:
 	Results in the task exiting immediately without executing the
 	system call.  The exit status of the task (``status & 0x7f``) will
 	be ``SIGSYS``, not ``SIGKILL``.
@@ -141,6 +146,15 @@ In precedence order, they are:
 	allow use of ptrace, even of other sandboxed processes, without
 	extreme care; ptracers can use this mechanism to escape.)
 
+``SECCOMP_RET_LOG``:
+	Results in the system call being executed after it is logged. This
+	should be used by application developers to learn which syscalls their
+	application needs without having to iterate through multiple test and
+	development cycles to build the list.
+
+	This action will only be logged if "log" is present in the
+	actions_logged sysctl string.
+
 ``SECCOMP_RET_ALLOW``:
 	Results in the system call being executed.
 
@@ -169,7 +183,41 @@ The ``samples/seccomp/`` directory contains both an x86-specific example
 and a more generic example of a higher level macro interface for BPF
 program generation.
 
+Sysctls
+=======
 
+Seccomp's sysctl files can be found in the ``/proc/sys/kernel/seccomp/``
+directory. Here's a description of each file in that directory:
+
+``actions_avail``:
+	A read-only ordered list of seccomp return values (refer to the
+	``SECCOMP_RET_*`` macros above) in string form. The ordering, from
+	left-to-right, is the least permissive return value to the most
+	permissive return value.
+
+	The list represents the set of seccomp return values supported
+	by the kernel. A userspace program may use this list to
+	determine if the actions found in the ``seccomp.h``, when the
+	program was built, differs from the set of actions actually
+	supported in the current running kernel.
+
+``actions_logged``:
+	A read-write ordered list of seccomp return values (refer to the
+	``SECCOMP_RET_*`` macros above) that are allowed to be logged. Writes
+	to the file do not need to be in ordered form but reads from the file
+	will be ordered in the same way as the actions_avail sysctl.
+
+	It is important to note that the value of ``actions_logged`` does not
+	prevent certain actions from being logged when the audit subsystem is
+	configured to audit a task. If the action is not found in
+	``actions_logged`` list, the final decision on whether to audit the
+	action for that task is ultimately left up to the audit subsystem to
+	decide for all seccomp return values other than ``SECCOMP_RET_ALLOW``.
+
+	The ``allow`` string is not accepted in the ``actions_logged`` sysctl
+	as it is not possible to log ``SECCOMP_RET_ALLOW`` actions. Attempting
+	to write ``allow`` to the sysctl will result in an EINVAL being
+	returned.
 
 Adding architecture support
 ===========================
diff --git a/Documentation/watchdog/hpwdt.txt b/Documentation/watchdog/hpwdt.txt
index 7a9f635d0258..6d866c537127 100644
--- a/Documentation/watchdog/hpwdt.txt
+++ b/Documentation/watchdog/hpwdt.txt
@@ -15,7 +15,7 @@ Last reviewed: 05/20/2016
 
  Watchdog functionality is enabled like any other common watchdog driver. That
  is, an application needs to be started that kicks off the watchdog timer. A
- basic application exists in the Documentation/watchdog/src directory called
+ basic application exists in tools/testing/selftests/watchdog/ named
  watchdog-test.c. Simply compile the C file and kick it off. If the system
  gets into a bad state and hangs, the HPE ProLiant iLO timer register will
  not be updated in a timely fashion and a hardware system reset (also known as
diff --git a/Documentation/watchdog/pcwd-watchdog.txt b/Documentation/watchdog/pcwd-watchdog.txt
index 4f68052395c0..b8e60a441a43 100644
--- a/Documentation/watchdog/pcwd-watchdog.txt
+++ b/Documentation/watchdog/pcwd-watchdog.txt
@@ -25,7 +25,7 @@ Last reviewed: 10/05/2007
 
  If you want to write a program to be compatible with the PC Watchdog
  driver, simply use of modify the watchdog test program:
- Documentation/watchdog/src/watchdog-test.c
+ tools/testing/selftests/watchdog/watchdog-test.c
 
 
  Other IOCTL functions include:
diff --git a/Documentation/watchdog/watchdog-parameters.txt b/Documentation/watchdog/watchdog-parameters.txt
index b3526365ea8e..6f9d7b418917 100644
--- a/Documentation/watchdog/watchdog-parameters.txt
+++ b/Documentation/watchdog/watchdog-parameters.txt
@@ -117,7 +117,7 @@ nowayout: Watchdog cannot be stopped once started
 -------------------------------------------------
 iTCO_wdt:
 heartbeat: Watchdog heartbeat in seconds.
-	(5<=heartbeat<=74 (TCO v1) or 1226 (TCO v2), default=30)
+	(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
 nowayout: Watchdog cannot be stopped once started
 	(default=kernel config parameter)
 -------------------------------------------------
diff --git a/Documentation/x86/amd-memory-encryption.txt b/Documentation/x86/amd-memory-encryption.txt
index f512ab718541..afc41f544dab 100644
--- a/Documentation/x86/amd-memory-encryption.txt
+++ b/Documentation/x86/amd-memory-encryption.txt
@@ -1,4 +1,5 @@
-Secure Memory Encryption (SME) is a feature found on AMD processors.
+Secure Memory Encryption (SME) and Secure Encrypted Virtualization (SEV) are
+features found on AMD processors.
 
 SME provides the ability to mark individual pages of memory as encrypted using
 the standard x86 page tables.  A page that is marked encrypted will be
@@ -6,24 +7,38 @@ automatically decrypted when read from DRAM and encrypted when written to
 DRAM.  SME can therefore be used to protect the contents of DRAM from physical
 attacks on the system.
 
+SEV enables running encrypted virtual machines (VMs) in which the code and data
+of the guest VM are secured so that a decrypted version is available only
+within the VM itself. SEV guest VMs have the concept of private and shared
+memory. Private memory is encrypted with the guest-specific key, while shared
+memory may be encrypted with hypervisor key. When SME is enabled, the hypervisor
+key is the same key which is used in SME.
+
 A page is encrypted when a page table entry has the encryption bit set (see
 below on how to determine its position).  The encryption bit can also be
 specified in the cr3 register, allowing the PGD table to be encrypted. Each
 successive level of page tables can also be encrypted by setting the encryption
 bit in the page table entry that points to the next table. This allows the full
 page table hierarchy to be encrypted. Note, this means that just because the
-encryption bit is set in cr3, doesn't imply the full hierarchy is encyrpted.
+encryption bit is set in cr3, doesn't imply the full hierarchy is encrypted.
 Each page table entry in the hierarchy needs to have the encryption bit set to
 achieve that. So, theoretically, you could have the encryption bit set in cr3
 so that the PGD is encrypted, but not set the encryption bit in the PGD entry
 for a PUD which results in the PUD pointed to by that entry to not be
 encrypted.
 
-Support for SME can be determined through the CPUID instruction. The CPUID
-function 0x8000001f reports information related to SME:
+When SEV is enabled, instruction pages and guest page tables are always treated
+as private. All the DMA operations inside the guest must be performed on shared
+memory. Since the memory encryption bit is controlled by the guest OS when it
+is operating in 64-bit or 32-bit PAE mode, in all other modes the SEV hardware
+forces the memory encryption bit to 1.
+
+Support for SME and SEV can be determined through the CPUID instruction. The
+CPUID function 0x8000001f reports information related to SME:
 
 	0x8000001f[eax]:
 		Bit[0] indicates support for SME
+		Bit[1] indicates support for SEV
 	0x8000001f[ebx]:
 		Bits[5:0]  pagetable bit number used to activate memory
 			   encryption
@@ -39,6 +54,13 @@ determine if SME is enabled and/or to enable memory encryption:
 		Bit[23]   0 = memory encryption features are disabled
 			  1 = memory encryption features are enabled
 
+If SEV is supported, MSR 0xc0010131 (MSR_AMD64_SEV) can be used to determine if
+SEV is active:
+
+	0xc0010131:
+		Bit[0]	  0 = memory encryption is not active
+			  1 = memory encryption is active
+
 Linux relies on BIOS to set this bit if BIOS has determined that the reduction
 in the physical address space as a result of enabling memory encryption (see
 CPUID information above) will not conflict with the address space resource
diff --git a/Documentation/x86/intel_rdt_ui.txt b/Documentation/x86/intel_rdt_ui.txt
index 4d8848e4e224..6851854cf69d 100644
--- a/Documentation/x86/intel_rdt_ui.txt
+++ b/Documentation/x86/intel_rdt_ui.txt
@@ -87,6 +87,17 @@ with the following files:
 			bytes) at which a previously used LLC_occupancy
 			counter can be considered for re-use.
 
+Finally, in the top level of the "info" directory there is a file
+named "last_cmd_status". This is reset with every "command" issued
+via the file system (making new directories or writing to any of the
+control files). If the command was successful, it will read as "ok".
+If the command failed, it will provide more information that can be
+conveyed in the error returns from file operations. E.g.
+
+	# echo L3:0=f7 > schemata
+	bash: echo: write error: Invalid argument
+	# cat info/last_cmd_status
+	mask f7 has non-consecutive 1-bits
 
 Resource alloc and monitor groups
 ---------------------------------
diff --git a/Documentation/x86/orc-unwinder.txt b/Documentation/x86/orc-unwinder.txt
index af0c9a4c65a6..cd4b29be29af 100644
--- a/Documentation/x86/orc-unwinder.txt
+++ b/Documentation/x86/orc-unwinder.txt
@@ -4,7 +4,7 @@ ORC unwinder
 Overview
 --------
 
-The kernel CONFIG_ORC_UNWINDER option enables the ORC unwinder, which is
+The kernel CONFIG_UNWINDER_ORC option enables the ORC unwinder, which is
 similar in concept to a DWARF unwinder.  The difference is that the
 format of the ORC data is much simpler than DWARF, which in turn allows
 the ORC unwinder to be much simpler and faster.
diff --git a/Documentation/x86/x86_64/mm.txt b/Documentation/x86/x86_64/mm.txt
index b0798e281aa6..3448e675b462 100644
--- a/Documentation/x86/x86_64/mm.txt
+++ b/Documentation/x86/x86_64/mm.txt
@@ -34,7 +34,7 @@ ff92000000000000 - ffd1ffffffffffff (=54 bits) vmalloc/ioremap space
 ffd2000000000000 - ffd3ffffffffffff (=49 bits) hole
 ffd4000000000000 - ffd5ffffffffffff (=49 bits) virtual memory map (512TB)
 ... unused hole ...
-ffd8000000000000 - fff7ffffffffffff (=53 bits) kasan shadow memory (8PB)
+ffdf000000000000 - fffffc0000000000 (=53 bits) kasan shadow memory (8PB)
 ... unused hole ...
 ffffff0000000000 - ffffff7fffffffff (=39 bits) %esp fixup stacks
 ... unused hole ...
diff --git a/Kbuild b/Kbuild
index 94c752762bc2..af161aa1facd 100644
--- a/Kbuild
+++ b/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Kbuild for top-level directory of the kernel
 # This file takes care of the following:
diff --git a/Kconfig b/Kconfig
index c13f48d65898..8c4c1cb0f9cd 100644
--- a/Kconfig
+++ b/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
diff --git a/MAINTAINERS b/MAINTAINERS
index b61848afb9d2..8604cf64a169 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -352,6 +352,18 @@ L:	linux-acpi@vger.kernel.org
 S:	Maintained
 F:	drivers/acpi/arm64
 
+ACPI PMIC DRIVERS
+M:	"Rafael J. Wysocki" <rjw@rjwysocki.net>
+M:	Len Brown <lenb@kernel.org>
+R:	Andy Shevchenko <andy@infradead.org>
+R:	Mika Westerberg <mika.westerberg@linux.intel.com>
+L:	linux-acpi@vger.kernel.org
+Q:	https://patchwork.kernel.org/project/linux-acpi/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
+B:	https://bugzilla.kernel.org
+S:	Supported
+F:	drivers/acpi/pmic/
+
 ACPI THERMAL DRIVER
 M:	Zhang Rui <rui.zhang@intel.com>
 L:	linux-acpi@vger.kernel.org
@@ -644,6 +656,11 @@ ALPS PS/2 TOUCHPAD DRIVER
 R:	Pali Rohár <pali.rohar@gmail.com>
 F:	drivers/input/mouse/alps.*
 
+ALTERA I2C CONTROLLER DRIVER
+M:	Thor Thayer <thor.thayer@linux.intel.com>
+S:	Maintained
+F:	drivers/i2c/busses/i2c-altera.c
+
 ALTERA MAILBOX DRIVER
 M:	Ley Foon Tan <lftan@altera.com>
 L:	nios2-dev@lists.rocketboards.org (moderated for non-subscribers)
@@ -856,7 +873,7 @@ F:	drivers/android/
 F:	drivers/staging/android/
 
 ANDROID GOLDFISH RTC DRIVER
-M:	Miodrag Dinic <miodrag.dinic@imgtec.com>
+M:	Miodrag Dinic <miodrag.dinic@mips.com>
 S:	Supported
 F:	Documentation/devicetree/bindings/rtc/google,goldfish-rtc.txt
 F:	drivers/rtc/rtc-goldfish.c
@@ -2545,10 +2562,12 @@ S:	Maintained
 F:	drivers/net/hamradio/baycom*
 
 BCACHE (BLOCK LAYER CACHE)
+M:	Michael Lyle <mlyle@lyle.org>
 M:	Kent Overstreet <kent.overstreet@gmail.com>
 L:	linux-bcache@vger.kernel.org
 W:	http://bcache.evilpiepirate.org
-S:	Orphan
+C:	irc://irc.oftc.net/bcache
+S:	Maintained
 F:	drivers/md/bcache/
 
 BDISP ST MEDIA DRIVER
@@ -2848,7 +2867,6 @@ S:	Supported
 F:	drivers/scsi/bnx2i/
 
 BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
-M:	Yuval Mintz <Yuval.Mintz@cavium.com>
 M:	Ariel Elior <ariel.elior@cavium.com>
 M:	everest-linux-l2@cavium.com
 L:	netdev@vger.kernel.org
@@ -2880,6 +2898,13 @@ S:	Supported
 F:	drivers/gpio/gpio-brcmstb.c
 F:	Documentation/devicetree/bindings/gpio/brcm,brcmstb-gpio.txt
 
+BROADCOM BRCMSTB USB2 and USB3 PHY DRIVER
+M:	Al Cooper <alcooperx@gmail.com>
+L:	linux-kernel@vger.kernel.org
+L:	bcm-kernel-feedback-list@broadcom.com
+S:	Maintained
+F:	drivers/phy/broadcom/phy-brcm-usb*
+
 BROADCOM GENET ETHERNET DRIVER
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	netdev@vger.kernel.org
@@ -3428,7 +3453,8 @@ M:	Thomas Gleixner <tglx@linutronix.de>
 L:	linux-kernel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git timers/core
 S:	Supported
-F:	drivers/clocksource
+F:	drivers/clocksource/
+F:	Documentation/devicetree/bindings/timer/
 
 CMPC ACPI DRIVER
 M:	Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
@@ -3620,6 +3646,8 @@ F:	drivers/cpufreq/arm_big_little_dt.c
 
 CPU POWER MONITORING SUBSYSTEM
 M:	Thomas Renninger <trenn@suse.com>
+M:	Shuah Khan <shuahkh@osg.samsung.com>
+M:	Shuah Khan <shuah@kernel.org>
 L:	linux-pm@vger.kernel.org
 S:	Maintained
 F:	tools/power/cpupower/
@@ -4075,6 +4103,8 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
 T:	quilt http://people.redhat.com/agk/patches/linux/editing/
 S:	Maintained
 F:	Documentation/device-mapper/
+F:	drivers/md/Makefile
+F:	drivers/md/Kconfig
 F:	drivers/md/dm*
 F:	drivers/md/persistent-data/
 F:	include/linux/device-mapper.h
@@ -4218,7 +4248,7 @@ S:	Maintained
 F:	drivers/dma/
 F:	include/linux/dmaengine.h
 F:	Documentation/devicetree/bindings/dma/
-F:	Documentation/dmaengine/
+F:	Documentation/driver-api/dmaengine/
 T:	git git://git.infradead.org/users/vkoul/slave-dma.git
 
 DMA MAPPING HELPERS
@@ -4890,13 +4920,19 @@ L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/highbank*
 
-EDAC-CAVIUM
+EDAC-CAVIUM OCTEON
 M:	Ralf Baechle <ralf@linux-mips.org>
 M:	David Daney <david.daney@cavium.com>
 L:	linux-edac@vger.kernel.org
 L:	linux-mips@linux-mips.org
 S:	Supported
 F:	drivers/edac/octeon_edac*
+
+EDAC-CAVIUM THUNDERX
+M:	David Daney <david.daney@cavium.com>
+M:	Jan Glauber <jglauber@cavium.com>
+L:	linux-edac@vger.kernel.org
+S:	Supported
 F:	drivers/edac/thunderx_edac*
 
 EDAC-CORE
@@ -5197,8 +5233,7 @@ F:	fs/ext4/
 
 Extended Verification Module (EVM)
 M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
-L:	linux-ima-devel@lists.sourceforge.net
-L:	linux-security-module@vger.kernel.org
+L:	linux-integrity@vger.kernel.org
 S:	Supported
 F:	security/integrity/evm/
 
@@ -5243,7 +5278,8 @@ S:	Maintained
 F:	drivers/iommu/exynos-iommu.c
 
 EZchip NPS platform support
-M:	Noam Camus <noamc@ezchip.com>
+M:	Elad Kanfi <eladkan@mellanox.com>
+M:	Vineet Gupta <vgupta@synopsys.com>
 S:	Supported
 F:	arch/arc/plat-eznps
 F:	arch/arc/boot/dts/eznps.dts
@@ -5329,9 +5365,7 @@ M:	"J. Bruce Fields" <bfields@fieldses.org>
 L:	linux-fsdevel@vger.kernel.org
 S:	Maintained
 F:	include/linux/fcntl.h
-F:	include/linux/fs.h
 F:	include/uapi/linux/fcntl.h
-F:	include/uapi/linux/fs.h
 F:	fs/fcntl.c
 F:	fs/locks.c
 
@@ -5340,6 +5374,8 @@ M:	Alexander Viro <viro@zeniv.linux.org.uk>
 L:	linux-fsdevel@vger.kernel.org
 S:	Maintained
 F:	fs/*
+F:	include/linux/fs.h
+F:	include/uapi/linux/fs.h
 
 FINTEK F75375S HARDWARE MONITOR AND FAN CONTROLLER DRIVER
 M:	Riku Voipio <riku.voipio@iki.fi>
@@ -5452,7 +5488,7 @@ F:	include/uapi/linux/fb.h
 
 FREESCALE CAAM (Cryptographic Acceleration and Assurance Module) DRIVER
 M:	Horia Geantă <horia.geanta@nxp.com>
-M:	Dan Douglass <dan.douglass@nxp.com>
+M:	Aymen Sghaier <aymen.sghaier@nxp.com>
 L:	linux-crypto@vger.kernel.org
 S:	Maintained
 F:	drivers/crypto/caam/
@@ -5632,6 +5668,7 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tytso/fscrypt.git
 S:	Supported
 F:	fs/crypto/
 F:	include/linux/fscrypt*.h
+F:	Documentation/filesystems/fscrypt.rst
 
 FUJITSU FR-V (FRV) PORT
 S:	Orphan
@@ -6638,8 +6675,8 @@ M:	Alexander Aring <alex.aring@gmail.com>
 M:	Stefan Schmidt <stefan@osg.samsung.com>
 L:	linux-wpan@vger.kernel.org
 W:	http://wpan.cakelab.org/
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth.git
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/sschmidt/wpan-next.git
 S:	Maintained
 F:	net/ieee802154/
 F:	net/mac802154/
@@ -6654,7 +6691,7 @@ F:	include/net/ieee802154_netdev.h
 F:	Documentation/networking/ieee802154.txt
 
 IFE PROTOCOL
-M:	Yotam Gigi <yotamg@mellanox.com>
+M:	Yotam Gigi <yotam.gi@gmail.com>
 M:	Jamal Hadi Salim <jhs@mojatatu.com>
 F:	net/ife
 F:	include/net/ife.h
@@ -6716,13 +6753,13 @@ S:	Maintained
 F:	drivers/usb/atm/ueagle-atm.c
 
 IMGTEC ASCII LCD DRIVER
-M:	Paul Burton <paul.burton@imgtec.com>
+M:	Paul Burton <paul.burton@mips.com>
 S:	Maintained
 F:	Documentation/devicetree/bindings/auxdisplay/img-ascii-lcd.txt
 F:	drivers/auxdisplay/img-ascii-lcd.c
 
 IMGTEC IR DECODER DRIVER
-M:	James Hogan <james.hogan@imgtec.com>
+M:	James Hogan <jhogan@kernel.org>
 S:	Maintained
 F:	drivers/media/rc/img-ir/
 
@@ -6824,9 +6861,7 @@ L:	linux-crypto@vger.kernel.org
 INTEGRITY MEASUREMENT ARCHITECTURE (IMA)
 M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
 M:	Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
-L:	linux-ima-devel@lists.sourceforge.net
-L:	linux-ima-user@lists.sourceforge.net
-L:	linux-security-module@vger.kernel.org
+L:	linux-integrity@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity.git
 S:	Supported
 F:	security/integrity/ima/
@@ -7546,7 +7581,7 @@ F:	arch/arm64/include/asm/kvm*
 F:	arch/arm64/kvm/
 
 KERNEL VIRTUAL MACHINE FOR MIPS (KVM/mips)
-M:	James Hogan <james.hogan@imgtec.com>
+M:	James Hogan <jhogan@kernel.org>
 L:	linux-mips@linux-mips.org
 S:	Supported
 F:	arch/mips/include/uapi/asm/kvm*
@@ -7554,7 +7589,7 @@ F:	arch/mips/include/asm/kvm*
 F:	arch/mips/kvm/
 
 KERNEL VIRTUAL MACHINE FOR POWERPC (KVM/powerpc)
-M:	Alexander Graf <agraf@suse.com>
+M:	Paul Mackerras <paulus@ozlabs.org>
 L:	kvm-ppc@vger.kernel.org
 W:	http://www.linux-kvm.org/
 T:	git git://github.com/agraf/linux-2.6.git
@@ -7609,8 +7644,7 @@ F:	kernel/kexec*
 
 KEYS-ENCRYPTED
 M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
-M:	David Safford <safford@us.ibm.com>
-L:	linux-security-module@vger.kernel.org
+L:	linux-integrity@vger.kernel.org
 L:	keyrings@vger.kernel.org
 S:	Supported
 F:	Documentation/security/keys/trusted-encrypted.rst
@@ -7618,9 +7652,8 @@ F:	include/keys/encrypted-type.h
 F:	security/keys/encrypted-keys/
 
 KEYS-TRUSTED
-M:	David Safford <safford@us.ibm.com>
 M:	Mimi Zohar <zohar@linux.vnet.ibm.com>
-L:	linux-security-module@vger.kernel.org
+L:	linux-integrity@vger.kernel.org
 L:	keyrings@vger.kernel.org
 S:	Supported
 F:	Documentation/security/keys/trusted-encrypted.rst
@@ -7712,6 +7745,7 @@ M:	John Crispin <john@phrozen.org>
 L:	linux-mips@linux-mips.org
 S:	Maintained
 F:	arch/mips/lantiq
+F:	drivers/soc/lantiq
 
 LAPB module
 L:	linux-x25@vger.kernel.org
@@ -7727,6 +7761,11 @@ S:	Maintained
 F:	Documentation/scsi/53c700.txt
 F:	drivers/scsi/53c700*
 
+LEAKING_ADDRESSES
+M:	Tobin C. Harding <me@tobin.cc>
+S:	Maintained
+F:	scripts/leaking_addresses.pl
+
 LED SUBSYSTEM
 M:	Richard Purdie <rpurdie@rpsys.net>
 M:	Jacek Anaszewski <jacek.anaszewski@gmail.com>
@@ -8247,6 +8286,12 @@ L:	libertas-dev@lists.infradead.org
 S:	Orphan
 F:	drivers/net/wireless/marvell/libertas/
 
+MARVELL MACCHIATOBIN SUPPORT
+M:	Russell King <rmk@armlinux.org.uk>
+L:	linux-arm-kernel@lists.infradead.org
+S:	Maintained
+F:	arch/arm64/boot/dts/marvell/armada-8040-mcbin.dts
+
 MARVELL MV643XX ETHERNET DRIVER
 M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 L:	netdev@vger.kernel.org
@@ -8580,6 +8625,12 @@ M:	Sean Wang <sean.wang@mediatek.com>
 S:	Maintained
 F:	drivers/media/rc/mtk-cir.c
 
+MEDIATEK PMIC LED DRIVER
+M:	Sean Wang <sean.wang@mediatek.com>
+S:	Maintained
+F:	drivers/leds/leds-mt6323.c
+F:	Documentation/devicetree/bindings/leds/leds-mt6323.txt
+
 MEDIATEK ETHERNET DRIVER
 M:	Felix Fietkau <nbd@openwrt.org>
 M:	John Crispin <john@phrozen.org>
@@ -8713,7 +8764,7 @@ Q:	http://patchwork.ozlabs.org/project/netdev/list/
 F:	drivers/net/ethernet/mellanox/mlxsw/
 
 MELLANOX FIRMWARE FLASH LIBRARY (mlxfw)
-M:	Yotam Gigi <yotamg@mellanox.com>
+M:	mlxsw@mellanox.com
 L:	netdev@vger.kernel.org
 S:	Supported
 W:	http://www.mellanox.com
@@ -8862,7 +8913,7 @@ F:	Documentation/devicetree/bindings/media/meson-ao-cec.txt
 T:	git git://linuxtv.org/media_tree.git
 
 METAG ARCHITECTURE
-M:	James Hogan <james.hogan@imgtec.com>
+M:	James Hogan <jhogan@kernel.org>
 L:	linux-metag@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag.git
 S:	Odd Fixes
@@ -8963,7 +9014,7 @@ F:	Documentation/mips/
 F:	arch/mips/
 
 MIPS BOSTON DEVELOPMENT BOARD
-M:	Paul Burton <paul.burton@imgtec.com>
+M:	Paul Burton <paul.burton@mips.com>
 L:	linux-mips@linux-mips.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/clock/img,boston-clock.txt
@@ -8973,10 +9024,11 @@ F:	drivers/clk/imgtec/clk-boston.c
 F:	include/dt-bindings/clock/boston-clock.h
 
 MIPS GENERIC PLATFORM
-M:	Paul Burton <paul.burton@imgtec.com>
+M:	Paul Burton <paul.burton@mips.com>
 L:	linux-mips@linux-mips.org
 S:	Supported
 F:	arch/mips/generic/
+F:	arch/mips/tools/generic-board-config.sh
 
 MIPS/LOONGSON1 ARCHITECTURE
 M:	Keguang Zhang <keguang.zhang@gmail.com>
@@ -8987,6 +9039,13 @@ F:	arch/mips/include/asm/mach-loongson32/
 F:	drivers/*/*loongson1*
 F:	drivers/*/*/*loongson1*
 
+MIPS RINT INSTRUCTION EMULATION
+M:	Aleksandar Markovic <aleksandar.markovic@mips.com>
+L:	linux-mips@linux-mips.org
+S:	Supported
+F:	arch/mips/math-emu/sp_rint.c
+F:	arch/mips/math-emu/dp_rint.c
+
 MIROSOUND PCM20 FM RADIO RECEIVER DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org
@@ -9175,7 +9234,6 @@ F:	include/linux/isicom.h
 MUSB MULTIPOINT HIGH SPEED DUAL-ROLE CONTROLLER
 M:	Bin Liu <b-liu@ti.com>
 L:	linux-usb@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
 S:	Maintained
 F:	drivers/usb/musb/
 
@@ -9323,7 +9381,7 @@ NETWORK BLOCK DEVICE (NBD)
 M:	Josef Bacik <jbacik@fb.com>
 S:	Maintained
 L:	linux-block@vger.kernel.org
-L:	nbd-general@lists.sourceforge.net
+L:	nbd@other.debian.org
 F:	Documentation/blockdev/nbd.txt
 F:	drivers/block/nbd.c
 F:	include/uapi/linux/nbd.h
@@ -9864,6 +9922,12 @@ F:	drivers/regulator/twl-regulator.c
 F:	drivers/regulator/twl6030-regulator.c
 F:	include/linux/i2c-omap.h
 
+ONION OMEGA2+ BOARD
+M:	Harvey Hunt <harveyhuntnexus@gmail.com>
+L:	linux-mips@linux-mips.org
+S:	Maintained
+F:	arch/mips/boot/dts/ralink/omega2p.dts
+
 OMFS FILESYSTEM
 M:	Bob Copeland <me@bobcopeland.com>
 L:	linux-karma-devel@lists.sourceforge.net
@@ -9988,7 +10052,11 @@ T:	git git://github.com/openrisc/linux.git
 L:	openrisc@lists.librecores.org
 W:	http://openrisc.io
 S:	Maintained
+F:	Documentation/devicetree/bindings/openrisc/
+F:	Documentation/openrisc/
 F:	arch/openrisc/
+F:	drivers/irqchip/irq-ompic.c
+F:	drivers/irqchip/irq-or1k-*
 
 OPENVSWITCH
 M:	Pravin Shelar <pshelar@nicira.com>
@@ -10006,7 +10074,7 @@ M:	Stephen Boyd <sboyd@codeaurora.org>
 L:	linux-pm@vger.kernel.org
 S:	Maintained
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git
-F:	drivers/base/power/opp/
+F:	drivers/opp/
 F:	include/linux/pm_opp.h
 F:	Documentation/power/opp.txt
 F:	Documentation/devicetree/bindings/opp/
@@ -10135,15 +10203,14 @@ F:	include/uapi/linux/ppdev.h
 F:	Documentation/parport*.txt
 
 PARAVIRT_OPS INTERFACE
-M:	Jeremy Fitzhardinge <jeremy@goop.org>
-M:	Chris Wright <chrisw@sous-sol.org>
+M:	Juergen Gross <jgross@suse.com>
 M:	Alok Kataria <akataria@vmware.com>
 M:	Rusty Russell <rusty@rustcorp.com.au>
 L:	virtualization@lists.linux-foundation.org
 S:	Supported
 F:	Documentation/virtual/paravirt_ops.txt
 F:	arch/*/kernel/paravirt*
-F:	arch/*/include/asm/paravirt.h
+F:	arch/*/include/asm/paravirt*.h
 F:	include/linux/hypervisor.h
 
 PARIDE DRIVERS FOR PARALLEL PORT IDE DEVICES
@@ -10294,7 +10361,6 @@ F:	drivers/pci/host/vmd.c
 
 PCI DRIVER FOR MICROSEMI SWITCHTEC
 M:	Kurt Schwemmer <kurt.schwemmer@microsemi.com>
-M:	Stephen Bates <stephen.bates@microsemi.com>
 M:	Logan Gunthorpe <logang@deltatee.com>
 L:	linux-pci@vger.kernel.org
 S:	Maintained
@@ -10359,6 +10425,7 @@ F:	drivers/pci/dwc/*keystone*
 
 PCI ENDPOINT SUBSYSTEM
 M:	Kishon Vijay Abraham I <kishon@ti.com>
+M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
 L:	linux-pci@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/pci-endpoint.git
 S:	Supported
@@ -10410,6 +10477,15 @@ F:	include/linux/pci*
 F:	arch/x86/pci/
 F:	arch/x86/kernel/quirks.c
 
+PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS
+M:	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
+L:	linux-pci@vger.kernel.org
+Q:	http://patchwork.ozlabs.org/project/linux-pci/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git/
+S:	Supported
+F:	drivers/pci/host/
+F:	drivers/pci/dwc/
+
 PCIE DRIVER FOR AXIS ARTPEC
 M:	Niklas Cassel <niklas.cassel@axis.com>
 M:	Jesper Nilsson <jesper.nilsson@axis.com>
@@ -10429,7 +10505,6 @@ F:	drivers/pci/host/pci-thunder-*
 
 PCIE DRIVER FOR HISILICON
 M:	Zhou Wang <wangzhou1@hisilicon.com>
-M:	Gabriele Paoloni <gabriele.paoloni@huawei.com>
 L:	linux-pci@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -10516,6 +10591,8 @@ M:	Peter Zijlstra <peterz@infradead.org>
 M:	Ingo Molnar <mingo@redhat.com>
 M:	Arnaldo Carvalho de Melo <acme@kernel.org>
 R:	Alexander Shishkin <alexander.shishkin@linux.intel.com>
+R:	Jiri Olsa <jolsa@redhat.com>
+R:	Namhyung Kim <namhyung@kernel.org>
 L:	linux-kernel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git perf/core
 S:	Supported
@@ -10639,10 +10716,9 @@ S:	Maintained
 F:	drivers/pinctrl/spear/
 
 PISTACHIO SOC SUPPORT
-M:	James Hartley <james.hartley@imgtec.com>
-M:	Ionela Voinescu <ionela.voinescu@imgtec.com>
+M:	James Hartley <james.hartley@sondrel.com>
 L:	linux-mips@linux-mips.org
-S:	Maintained
+S:	Odd Fixes
 F:	arch/mips/pistachio/
 F:	arch/mips/include/asm/mach-pistachio/
 F:	arch/mips/boot/dts/img/pistachio*
@@ -10846,7 +10922,7 @@ S:	Maintained
 F:	drivers/block/ps3vram.c
 
 PSAMPLE PACKET SAMPLING SUPPORT:
-M:	Yotam Gigi <yotamg@mellanox.com>
+M:	Yotam Gigi <yotam.gi@gmail.com>
 S:	Maintained
 F:	net/psample
 F:	include/net/psample.h
@@ -10989,7 +11065,6 @@ F:	drivers/mtd/nand/pxa3xx_nand.c
 
 QAT DRIVER
 M:	Giovanni Cabiddu <giovanni.cabiddu@intel.com>
-M:	Salvatore Benedetto <salvatore.benedetto@intel.com>
 L:	qat-linux@intel.com
 S:	Supported
 F:	drivers/crypto/qat/
@@ -11027,7 +11102,6 @@ S:	Supported
 F:	drivers/scsi/qedi/
 
 QLOGIC QL4xxx ETHERNET DRIVER
-M:	Yuval Mintz <Yuval.Mintz@cavium.com>
 M:	Ariel Elior <Ariel.Elior@cavium.com>
 M:	everest-linux-l2@cavium.com
 L:	netdev@vger.kernel.org
@@ -11415,6 +11489,8 @@ RENESAS ETHERNET DRIVERS
 R:	Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
 L:	netdev@vger.kernel.org
 L:	linux-renesas-soc@vger.kernel.org
+F:	Documentation/devicetree/bindings/net/renesas,*.txt
+F:	Documentation/devicetree/bindings/net/sh_eth.txt
 F:	drivers/net/ethernet/renesas/
 F:	include/linux/sh_eth.h
 
@@ -11721,7 +11797,7 @@ L:	linux-crypto@vger.kernel.org
 L:	linux-samsung-soc@vger.kernel.org
 S:	Maintained
 F:	drivers/crypto/exynos-rng.c
-F:	Documentation/devicetree/bindings/rng/samsung,exynos-rng4.txt
+F:	Documentation/devicetree/bindings/crypto/samsung,exynos-rng4.txt
 
 SAMSUNG FRAMEBUFFER DRIVER
 M:	Jingoo Han <jingoohan1@gmail.com>
@@ -12004,10 +12080,15 @@ L:	linux-mmc@vger.kernel.org
 S:	Maintained
 F:	drivers/mmc/host/sdhci-spear.c
 
+SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) TI OMAP DRIVER
+M:	Kishon Vijay Abraham I <kishon@ti.com>
+L:	linux-mmc@vger.kernel.org
+S:	Maintained
+F:	drivers/mmc/host/sdhci-omap.c
+
 SECURE ENCRYPTING DEVICE (SED) OPAL DRIVER
 M:	Scott Bauer <scott.bauer@intel.com>
 M:	Jonathan Derrick <jonathan.derrick@intel.com>
-M:	Rafael Antognolli <rafael.antognolli@intel.com>
 L:	linux-block@vger.kernel.org
 S:	Supported
 F:	block/sed*
@@ -12408,7 +12489,10 @@ M:	Shaohua Li <shli@kernel.org>
 L:	linux-raid@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/shli/md.git
 S:	Supported
-F:	drivers/md/
+F:	drivers/md/Makefile
+F:	drivers/md/Kconfig
+F:	drivers/md/md*
+F:	drivers/md/raid*
 F:	include/linux/raid/
 F:	include/uapi/linux/raid/
 
@@ -12893,9 +12977,9 @@ F:	drivers/mmc/host/dw_mmc*
 SYNOPSYS HSDK RESET CONTROLLER DRIVER
 M:	Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
 S:	Supported
-F:	drivers/reset/reset-hsdk-v1.c
-F:	include/dt-bindings/reset/snps,hsdk-v1-reset.h
-F:	Documentation/devicetree/bindings/reset/snps,hsdk-v1-reset.txt
+F:	drivers/reset/reset-hsdk.c
+F:	include/dt-bindings/reset/snps,hsdk-reset.h
+F:	Documentation/devicetree/bindings/reset/snps,hsdk-reset.txt
 
 SYSTEM CONFIGURATION (SYSCON)
 M:	Lee Jones <lee.jones@linaro.org>
@@ -13554,23 +13638,14 @@ F:	drivers/platform/x86/toshiba-wmi.c
 
 TPM DEVICE DRIVER
 M:	Peter Huewe <peterhuewe@gmx.de>
-M:	Marcel Selhorst <tpmdd@selhorst.net>
 M:	Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
 R:	Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
-W:	http://tpmdd.sourceforge.net
-L:	tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
-Q:	https://patchwork.kernel.org/project/tpmdd-devel/list/
+L:	linux-integrity@vger.kernel.org
+Q:	https://patchwork.kernel.org/project/linux-integrity/list/
 T:	git git://git.infradead.org/users/jjs/linux-tpmdd.git
 S:	Maintained
 F:	drivers/char/tpm/
 
-TPM IBM_VTPM DEVICE DRIVER
-M:	Ashley Lai <ashleydlai@gmail.com>
-W:	http://tpmdd.sourceforge.net
-L:	tpmdd-devel@lists.sourceforge.net (moderated for non-subscribers)
-S:	Maintained
-F:	drivers/char/tpm/tpm_ibmvtpm*
-
 TRACING
 M:	Steven Rostedt <rostedt@goodmis.org>
 M:	Ingo Molnar <mingo@redhat.com>
@@ -14280,6 +14355,7 @@ L:	virtualization@lists.linux-foundation.org
 L:	kvm@vger.kernel.org
 S:	Supported
 F:	drivers/s390/virtio/
+F:	arch/s390/include/uapi/asm/virtio-ccw.h
 
 VIRTIO GPU DRIVER
 M:	David Airlie <airlied@linux.ie>
@@ -14385,6 +14461,12 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/vmxnet3/
 
+VOCORE VOCORE2 BOARD
+M:	Harvey Hunt <harveyhuntnexus@gmail.com>
+L:	linux-mips@linux-mips.org
+S:	Maintained
+F:	arch/mips/boot/dts/ralink/vocore2.dts
+
 VOLTAGE AND CURRENT REGULATOR FRAMEWORK
 M:	Liam Girdwood <lgirdwood@gmail.com>
 M:	Mark Brown <broonie@kernel.org>
diff --git a/Makefile b/Makefile
index ab067d51ddf1..7917d4a1d8d2 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
 VERSION = 4
-PATCHLEVEL = 13
+PATCHLEVEL = 14
 SUBLEVEL = 0
 EXTRAVERSION =
 NAME = Fearless Coyote
@@ -697,11 +698,11 @@ KBUILD_CFLAGS += $(stackp-flag)
 
 ifeq ($(cc-name),clang)
 ifneq ($(CROSS_COMPILE),)
-CLANG_TARGET	:= -target $(notdir $(CROSS_COMPILE:%-=%))
+CLANG_TARGET	:= --target=$(notdir $(CROSS_COMPILE:%-=%))
 GCC_TOOLCHAIN	:= $(realpath $(dir $(shell which $(LD)))/..)
 endif
 ifneq ($(GCC_TOOLCHAIN),)
-CLANG_GCC_TC	:= -gcc-toolchain $(GCC_TOOLCHAIN)
+CLANG_GCC_TC	:= --gcc-toolchain=$(GCC_TOOLCHAIN)
 endif
 KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
 KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
@@ -933,7 +934,11 @@ ifdef CONFIG_STACK_VALIDATION
   ifeq ($(has_libelf),1)
     objtool_target := tools/objtool FORCE
   else
-    $(warning "Cannot use CONFIG_STACK_VALIDATION, please install libelf-dev, libelf-devel or elfutils-libelf-devel")
+    ifdef CONFIG_UNWINDER_ORC
+      $(error "Cannot generate ORC metadata for CONFIG_UNWINDER_ORC=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel")
+    else
+      $(warning "Cannot use CONFIG_STACK_VALIDATION=y, please install libelf-dev, libelf-devel or elfutils-libelf-devel")
+    endif
     SKIP_STACK_VALIDATION := 1
     export SKIP_STACK_VALIDATION
   endif
@@ -978,7 +983,7 @@ ifdef CONFIG_HEADERS_CHECK
 	$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
 endif
 ifdef CONFIG_GDB_SCRIPTS
-	$(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py
+	$(Q)ln -fsn $(abspath $(srctree)/scripts/gdb/vmlinux-gdb.py)
 endif
 ifdef CONFIG_TRIM_UNUSED_KSYMS
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/adjust_autoksyms.sh \
@@ -1129,16 +1134,6 @@ headerdep:
 	$(srctree)/scripts/headerdep.pl -I$(srctree)/include
 
 # ---------------------------------------------------------------------------
-# Firmware install
-INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
-export INSTALL_FW_PATH
-
-PHONY += firmware_install
-firmware_install:
-	@mkdir -p $(objtree)/firmware
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
-
-# ---------------------------------------------------------------------------
 # Kernel headers
 
 #Default location for installed headers
@@ -1182,11 +1177,11 @@ headers_check: headers_install
 
 PHONY += kselftest
 kselftest:
-	$(Q)$(MAKE) -C tools/testing/selftests run_tests
+	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests run_tests
 
 PHONY += kselftest-clean
 kselftest-clean:
-	$(Q)$(MAKE) -C tools/testing/selftests clean
+	$(Q)$(MAKE) -C $(srctree)/tools/testing/selftests clean
 
 PHONY += kselftest-merge
 kselftest-merge:
@@ -1216,7 +1211,6 @@ modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
 	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
 	@$(kecho) '  Building modules, stage 2.';
 	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
 
 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
 	$(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
@@ -1238,7 +1232,7 @@ _modinst_:
 	@rm -rf $(MODLIB)/kernel
 	@rm -f $(MODLIB)/source
 	@mkdir -p $(MODLIB)/kernel
-	@ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
+	@ln -s $(abspath $(srctree)) $(MODLIB)/source
 	@if [ ! $(objtree) -ef  $(MODLIB)/build ]; then \
 		rm -f $(MODLIB)/build ; \
 		ln -s $(CURDIR) $(MODLIB)/build ; \
@@ -1252,7 +1246,6 @@ _modinst_:
 # boot script depmod is the master version.
 PHONY += _modinst_post
 _modinst_post: _modinst_
-	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
 	$(call cmd,depmod)
 
 ifeq ($(CONFIG_MODULE_SIG), y)
@@ -1375,8 +1368,6 @@ help:
 	@echo  '* vmlinux	  - Build the bare kernel'
 	@echo  '* modules	  - Build all modules'
 	@echo  '  modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
-	@echo  '  firmware_install- Install all firmware to INSTALL_FW_PATH'
-	@echo  '                    (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
 	@echo  '  dir/            - Build all files in dir and below'
 	@echo  '  dir/file.[ois]  - Build specified target only'
 	@echo  '  dir/file.ll     - Build the LLVM assembly file'
@@ -1409,7 +1400,7 @@ help:
 	@echo  '                    Build, install, and boot kernel before'
 	@echo  '                    running kselftest on it'
 	@echo  '  kselftest-clean - Remove all generated kselftest files'
-	@echo  '  kselftest-merge - Merge all the config dependencies of kselftest to existed'
+	@echo  '  kselftest-merge - Merge all the config dependencies of kselftest to existing'
 	@echo  '                    .config.'
 	@echo  ''
 	@echo 'Userspace tools targets:'
@@ -1468,7 +1459,8 @@ $(help-board-dirs): help-%:
 
 # Documentation targets
 # ---------------------------------------------------------------------------
-DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs linkcheckdocs
+DOC_TARGETS := xmldocs latexdocs pdfdocs htmldocs epubdocs cleandocs \
+	       linkcheckdocs dochelp refcheckdocs
 PHONY += $(DOC_TARGETS)
 $(DOC_TARGETS): scripts_basic FORCE
 	$(Q)$(MAKE) $(build)=Documentation $@
@@ -1630,11 +1622,11 @@ image_name:
 # Clear a bunch of variables before executing the submake
 tools/: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/
 
 tools/%: FORCE
 	$(Q)mkdir -p $(objtree)/tools
-	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(shell cd $(objtree) && /bin/pwd) subdir=tools -C $(src)/tools/ $*
+	$(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(tools_silent) $(filter --j% -j,$(MAKEFLAGS))" O=$(abspath $(objtree)) subdir=tools -C $(src)/tools/ $*
 
 # Single targets
 # ---------------------------------------------------------------------------
diff --git a/arch/Kconfig b/arch/Kconfig
index 1aafb4efbb51..400b9e1b2f27 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # General architecture dependent options
 #
@@ -90,7 +91,7 @@ config STATIC_KEYS_SELFTEST
 config OPTPROBES
 	def_bool y
 	depends on KPROBES && HAVE_OPTPROBES
-	depends on !PREEMPT
+	select TASKS_RCU if PREEMPT
 
 config KPROBES_ON_FTRACE
 	def_bool y
@@ -937,9 +938,6 @@ config STRICT_MODULE_RWX
 	  and non-text memory will be made non-executable. This provides
 	  protection against certain security exploits (e.g. writing to text)
 
-config ARCH_WANT_RELAX_ORDER
-	bool
-
 config ARCH_HAS_REFCOUNT
 	bool
 	help
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 0e49d39ea74a..69b875880754 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ALPHA
 	bool
 	default y
diff --git a/arch/alpha/Kconfig.debug b/arch/alpha/Kconfig.debug
index 3f6265f2d9d4..5e93dffb818a 100644
--- a/arch/alpha/Kconfig.debug
+++ b/arch/alpha/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/alpha/boot/bootloader.lds b/arch/alpha/boot/bootloader.lds
index 31c081ce1d50..8cdff54c6e41 100644
--- a/arch/alpha/boot/bootloader.lds
+++ b/arch/alpha/boot/bootloader.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 OUTPUT_FORMAT("elf64-alpha")
 ENTRY(__start)
 printk = srm_printk;
diff --git a/arch/alpha/boot/bootp.c b/arch/alpha/boot/bootp.c
index 2a542a506557..95c0359f4858 100644
--- a/arch/alpha/boot/bootp.c
+++ b/arch/alpha/boot/bootp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/boot/bootp.c
  *
diff --git a/arch/alpha/boot/bootpz.c b/arch/alpha/boot/bootpz.c
index d6ad191698da..99b8d7dc344b 100644
--- a/arch/alpha/boot/bootpz.c
+++ b/arch/alpha/boot/bootpz.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/boot/bootpz.c
  *
diff --git a/arch/alpha/boot/head.S b/arch/alpha/boot/head.S
index 8efb26686d47..06a7c95fe9ad 100644
--- a/arch/alpha/boot/head.S
+++ b/arch/alpha/boot/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/boot/head.S
  *
diff --git a/arch/alpha/boot/main.c b/arch/alpha/boot/main.c
index dd6eb4a33582..8f5ed8610970 100644
--- a/arch/alpha/boot/main.c
+++ b/arch/alpha/boot/main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/boot/main.c
  *
diff --git a/arch/alpha/boot/misc.c b/arch/alpha/boot/misc.c
index 1b568ed74f95..d65192202703 100644
--- a/arch/alpha/boot/misc.c
+++ b/arch/alpha/boot/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c
  * 
diff --git a/arch/alpha/boot/tools/mkbb.c b/arch/alpha/boot/tools/mkbb.c
index 1185778e6a1e..fc47f33f8a44 100644
--- a/arch/alpha/boot/tools/mkbb.c
+++ b/arch/alpha/boot/tools/mkbb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* This utility makes a bootblock suitable for the SRM console/miniloader */
 
 /* Usage:
diff --git a/arch/alpha/boot/tools/objstrip.c b/arch/alpha/boot/tools/objstrip.c
index dee82695f48b..825a16f5f622 100644
--- a/arch/alpha/boot/tools/objstrip.c
+++ b/arch/alpha/boot/tools/objstrip.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/boot/tools/objstrip.c
  *
diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index 5b974ab8425c..47f3fba3e41f 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 
 generic-y += clkdev.h
diff --git a/arch/alpha/include/asm/a.out.h b/arch/alpha/include/asm/a.out.h
index 9abbd2455306..d2346b7caff1 100644
--- a/arch/alpha/include/asm/a.out.h
+++ b/arch/alpha/include/asm/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_A_OUT_H__
 #define __ALPHA_A_OUT_H__
 
diff --git a/arch/alpha/include/asm/agp.h b/arch/alpha/include/asm/agp.h
index a94d48b8677f..7173eada1567 100644
--- a/arch/alpha/include/asm/agp.h
+++ b/arch/alpha/include/asm/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AGP_H
 #define AGP_H 1
 
diff --git a/arch/alpha/include/asm/agp_backend.h b/arch/alpha/include/asm/agp_backend.h
index 55dd44a2cea7..2718802407d6 100644
--- a/arch/alpha/include/asm/agp_backend.h
+++ b/arch/alpha/include/asm/agp_backend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_AGP_BACKEND_H
 #define _ALPHA_AGP_BACKEND_H 1
 
diff --git a/arch/alpha/include/asm/atomic.h b/arch/alpha/include/asm/atomic.h
index 498933a7df97..767bfdd42992 100644
--- a/arch/alpha/include/asm/atomic.h
+++ b/arch/alpha/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_ATOMIC_H
 #define _ALPHA_ATOMIC_H
 
@@ -13,6 +14,15 @@
  * than regular operations.
  */
 
+/*
+ * To ensure dependency ordering is preserved for the _relaxed and
+ * _release atomics, an smp_read_barrier_depends() is unconditionally
+ * inserted into the _relaxed variants, which are used to build the
+ * barriered versions. To avoid redundant back-to-back fences, we can
+ * define the _acquire and _fence versions explicitly.
+ */
+#define __atomic_op_acquire(op, args...)	op##_relaxed(args)
+#define __atomic_op_fence			__atomic_op_release
 
 #define ATOMIC_INIT(i)		{ (i) }
 #define ATOMIC64_INIT(i)	{ (i) }
@@ -60,6 +70,7 @@ static inline int atomic_##op##_return_relaxed(int i, atomic_t *v)	\
 	".previous"							\
 	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
 	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_read_barrier_depends();					\
 	return result;							\
 }
 
@@ -77,6 +88,7 @@ static inline int atomic_fetch_##op##_relaxed(int i, atomic_t *v)	\
 	".previous"							\
 	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
 	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_read_barrier_depends();					\
 	return result;							\
 }
 
@@ -111,6 +123,7 @@ static __inline__ long atomic64_##op##_return_relaxed(long i, atomic64_t * v)	\
 	".previous"							\
 	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
 	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_read_barrier_depends();					\
 	return result;							\
 }
 
@@ -128,6 +141,7 @@ static __inline__ long atomic64_fetch_##op##_relaxed(long i, atomic64_t * v)	\
 	".previous"							\
 	:"=&r" (temp), "=m" (v->counter), "=&r" (result)		\
 	:"Ir" (i), "m" (v->counter) : "memory");			\
+	smp_read_barrier_depends();					\
 	return result;							\
 }
 
diff --git a/arch/alpha/include/asm/barrier.h b/arch/alpha/include/asm/barrier.h
index 77516c87255d..92ec486a4f9e 100644
--- a/arch/alpha/include/asm/barrier.h
+++ b/arch/alpha/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BARRIER_H
 #define __BARRIER_H
 
diff --git a/arch/alpha/include/asm/bitops.h b/arch/alpha/include/asm/bitops.h
index 4bdfbd444e63..ca43f4d0b937 100644
--- a/arch/alpha/include/asm/bitops.h
+++ b/arch/alpha/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_BITOPS_H
 #define _ALPHA_BITOPS_H
 
diff --git a/arch/alpha/include/asm/bug.h b/arch/alpha/include/asm/bug.h
index f091682e3cc8..b88ebdfedf7c 100644
--- a/arch/alpha/include/asm/bug.h
+++ b/arch/alpha/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_BUG_H
 #define _ALPHA_BUG_H
 
diff --git a/arch/alpha/include/asm/cache.h b/arch/alpha/include/asm/cache.h
index ad368a93a46a..6ce508c68907 100644
--- a/arch/alpha/include/asm/cache.h
+++ b/arch/alpha/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-alpha/cache.h
  */
diff --git a/arch/alpha/include/asm/cacheflush.h b/arch/alpha/include/asm/cacheflush.h
index a9cb6aa447aa..89128489cb59 100644
--- a/arch/alpha/include/asm/cacheflush.h
+++ b/arch/alpha/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_CACHEFLUSH_H
 #define _ALPHA_CACHEFLUSH_H
 
diff --git a/arch/alpha/include/asm/checksum.h b/arch/alpha/include/asm/checksum.h
index f2bbdd2ace51..473e6ccb65a3 100644
--- a/arch/alpha/include/asm/checksum.h
+++ b/arch/alpha/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_CHECKSUM_H
 #define _ALPHA_CHECKSUM_H
 
diff --git a/arch/alpha/include/asm/cmpxchg.h b/arch/alpha/include/asm/cmpxchg.h
index e5117766529e..46ebf14aed4e 100644
--- a/arch/alpha/include/asm/cmpxchg.h
+++ b/arch/alpha/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_CMPXCHG_H
 #define _ALPHA_CMPXCHG_H
 
diff --git a/arch/alpha/include/asm/compiler.h b/arch/alpha/include/asm/compiler.h
index a7720b96bcc9..5159ba259d65 100644
--- a/arch/alpha/include/asm/compiler.h
+++ b/arch/alpha/include/asm/compiler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_COMPILER_H
 #define __ALPHA_COMPILER_H
 
diff --git a/arch/alpha/include/asm/console.h b/arch/alpha/include/asm/console.h
index f2b584fe0994..088b7b9eb15a 100644
--- a/arch/alpha/include/asm/console.h
+++ b/arch/alpha/include/asm/console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AXP_CONSOLE_H
 #define __AXP_CONSOLE_H
 
diff --git a/arch/alpha/include/asm/core_apecs.h b/arch/alpha/include/asm/core_apecs.h
index 6785ff7e02bc..0a07055bc0fe 100644
--- a/arch/alpha/include/asm/core_apecs.h
+++ b/arch/alpha/include/asm/core_apecs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_APECS__H__
 #define __ALPHA_APECS__H__
 
diff --git a/arch/alpha/include/asm/core_cia.h b/arch/alpha/include/asm/core_cia.h
index 9e0516c0ca27..c706a7f2b061 100644
--- a/arch/alpha/include/asm/core_cia.h
+++ b/arch/alpha/include/asm/core_cia.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_CIA__H__
 #define __ALPHA_CIA__H__
 
diff --git a/arch/alpha/include/asm/core_irongate.h b/arch/alpha/include/asm/core_irongate.h
index 24b2db541501..1c8906bf76c6 100644
--- a/arch/alpha/include/asm/core_irongate.h
+++ b/arch/alpha/include/asm/core_irongate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_IRONGATE__H__
 #define __ALPHA_IRONGATE__H__
 
diff --git a/arch/alpha/include/asm/core_lca.h b/arch/alpha/include/asm/core_lca.h
index 8ee6c516279c..84d5e5b84f4f 100644
--- a/arch/alpha/include/asm/core_lca.h
+++ b/arch/alpha/include/asm/core_lca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_LCA__H__
 #define __ALPHA_LCA__H__
 
diff --git a/arch/alpha/include/asm/core_marvel.h b/arch/alpha/include/asm/core_marvel.h
index 8dcf9dbda618..cc6fd92d5fa9 100644
--- a/arch/alpha/include/asm/core_marvel.h
+++ b/arch/alpha/include/asm/core_marvel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Marvel systems use the IO7 I/O chip provides PCI/PCIX/AGP access
  *
diff --git a/arch/alpha/include/asm/core_mcpcia.h b/arch/alpha/include/asm/core_mcpcia.h
index ad44bef29fba..b30dc128210d 100644
--- a/arch/alpha/include/asm/core_mcpcia.h
+++ b/arch/alpha/include/asm/core_mcpcia.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_MCPCIA__H__
 #define __ALPHA_MCPCIA__H__
 
diff --git a/arch/alpha/include/asm/core_polaris.h b/arch/alpha/include/asm/core_polaris.h
index 2f966b64659d..1c56dea647b5 100644
--- a/arch/alpha/include/asm/core_polaris.h
+++ b/arch/alpha/include/asm/core_polaris.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_POLARIS__H__
 #define __ALPHA_POLARIS__H__
 
diff --git a/arch/alpha/include/asm/core_t2.h b/arch/alpha/include/asm/core_t2.h
index ade9d92e68b4..e0b33d09e93a 100644
--- a/arch/alpha/include/asm/core_t2.h
+++ b/arch/alpha/include/asm/core_t2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_T2__H__
 #define __ALPHA_T2__H__
 
diff --git a/arch/alpha/include/asm/core_titan.h b/arch/alpha/include/asm/core_titan.h
index 8cf79d1219e1..dcc02682c1e1 100644
--- a/arch/alpha/include/asm/core_titan.h
+++ b/arch/alpha/include/asm/core_titan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_TITAN__H__
 #define __ALPHA_TITAN__H__
 
diff --git a/arch/alpha/include/asm/core_tsunami.h b/arch/alpha/include/asm/core_tsunami.h
index 8e39ecf09419..3391e95754f2 100644
--- a/arch/alpha/include/asm/core_tsunami.h
+++ b/arch/alpha/include/asm/core_tsunami.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_TSUNAMI__H__
 #define __ALPHA_TSUNAMI__H__
 
diff --git a/arch/alpha/include/asm/core_wildfire.h b/arch/alpha/include/asm/core_wildfire.h
index cd562f544ba2..5d1b37f412cd 100644
--- a/arch/alpha/include/asm/core_wildfire.h
+++ b/arch/alpha/include/asm/core_wildfire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_WILDFIRE__H__
 #define __ALPHA_WILDFIRE__H__
 
diff --git a/arch/alpha/include/asm/delay.h b/arch/alpha/include/asm/delay.h
index 2aa3f410f7e6..868aa61aba2f 100644
--- a/arch/alpha/include/asm/delay.h
+++ b/arch/alpha/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_DELAY_H
 #define __ALPHA_DELAY_H
 
diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h
index 5d53666935e6..e542cb272b67 100644
--- a/arch/alpha/include/asm/dma-mapping.h
+++ b/arch/alpha/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_DMA_MAPPING_H
 #define _ALPHA_DMA_MAPPING_H
 
diff --git a/arch/alpha/include/asm/dma.h b/arch/alpha/include/asm/dma.h
index 87cfdbdf08fc..28610ea7786d 100644
--- a/arch/alpha/include/asm/dma.h
+++ b/arch/alpha/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-alpha/dma.h
  *
diff --git a/arch/alpha/include/asm/elf.h b/arch/alpha/include/asm/elf.h
index 968d9991f5ee..8049997fa372 100644
--- a/arch/alpha/include/asm/elf.h
+++ b/arch/alpha/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ALPHA_ELF_H
 #define __ASM_ALPHA_ELF_H
 
diff --git a/arch/alpha/include/asm/err_common.h b/arch/alpha/include/asm/err_common.h
index c25095942107..610e01fe73ab 100644
--- a/arch/alpha/include/asm/err_common.h
+++ b/arch/alpha/include/asm/err_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	linux/include/asm-alpha/err_common.h
  *
diff --git a/arch/alpha/include/asm/err_ev7.h b/arch/alpha/include/asm/err_ev7.h
index 87f99777c2e4..ab17e6333764 100644
--- a/arch/alpha/include/asm/err_ev7.h
+++ b/arch/alpha/include/asm/err_ev7.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_ERR_EV7_H
 #define __ALPHA_ERR_EV7_H 1
 
diff --git a/arch/alpha/include/asm/extable.h b/arch/alpha/include/asm/extable.h
index 048e209e524c..e42592390ee0 100644
--- a/arch/alpha/include/asm/extable.h
+++ b/arch/alpha/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EXTABLE_H
 #define _ASM_EXTABLE_H
 
diff --git a/arch/alpha/include/asm/fpu.h b/arch/alpha/include/asm/fpu.h
index 71c20956b905..b9691405e56b 100644
--- a/arch/alpha/include/asm/fpu.h
+++ b/arch/alpha/include/asm/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ALPHA_FPU_H
 #define __ASM_ALPHA_FPU_H
 
diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h
index 05a70edd57b6..d2e4da93e68c 100644
--- a/arch/alpha/include/asm/futex.h
+++ b/arch/alpha/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ALPHA_FUTEX_H
 #define _ASM_ALPHA_FUTEX_H
 
diff --git a/arch/alpha/include/asm/gct.h b/arch/alpha/include/asm/gct.h
index 3504c704927c..2847449fb168 100644
--- a/arch/alpha/include/asm/gct.h
+++ b/arch/alpha/include/asm/gct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_GCT_H
 #define __ALPHA_GCT_H
 
diff --git a/arch/alpha/include/asm/hardirq.h b/arch/alpha/include/asm/hardirq.h
index 242c09ba98c4..5ce5b34e8a1a 100644
--- a/arch/alpha/include/asm/hardirq.h
+++ b/arch/alpha/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_HARDIRQ_H
 #define _ALPHA_HARDIRQ_H
 
diff --git a/arch/alpha/include/asm/hw_irq.h b/arch/alpha/include/asm/hw_irq.h
index 5050ac81cd90..e2d81ac0d934 100644
--- a/arch/alpha/include/asm/hw_irq.h
+++ b/arch/alpha/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_HW_IRQ_H
 #define _ALPHA_HW_IRQ_H
 
diff --git a/arch/alpha/include/asm/hwrpb.h b/arch/alpha/include/asm/hwrpb.h
index 8e8f871af7cf..d8180e527a1e 100644
--- a/arch/alpha/include/asm/hwrpb.h
+++ b/arch/alpha/include/asm/hwrpb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_HWRPB_H
 #define __ALPHA_HWRPB_H
 
diff --git a/arch/alpha/include/asm/io.h b/arch/alpha/include/asm/io.h
index 4d61d2a50c52..d123ff90f7a8 100644
--- a/arch/alpha/include/asm/io.h
+++ b/arch/alpha/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_IO_H
 #define __ALPHA_IO_H
 
diff --git a/arch/alpha/include/asm/io_trivial.h b/arch/alpha/include/asm/io_trivial.h
index 1c77f10b4b36..ba3d8f0cfe0c 100644
--- a/arch/alpha/include/asm/io_trivial.h
+++ b/arch/alpha/include/asm/io_trivial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Trivial implementations of basic i/o routines.  Assumes that all
    of the hard work has been done by ioremap and ioportmap, and that
    access to i/o space is linear.  */
diff --git a/arch/alpha/include/asm/irq.h b/arch/alpha/include/asm/irq.h
index 06377400dc09..4d17cacd1462 100644
--- a/arch/alpha/include/asm/irq.h
+++ b/arch/alpha/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_IRQ_H
 #define _ALPHA_IRQ_H
 
diff --git a/arch/alpha/include/asm/irqflags.h b/arch/alpha/include/asm/irqflags.h
index ffb1726484af..9f25d4e0d37e 100644
--- a/arch/alpha/include/asm/irqflags.h
+++ b/arch/alpha/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_IRQFLAGS_H
 #define __ALPHA_IRQFLAGS_H
 
diff --git a/arch/alpha/include/asm/jensen.h b/arch/alpha/include/asm/jensen.h
index 964b06ead43b..436dc905b6ad 100644
--- a/arch/alpha/include/asm/jensen.h
+++ b/arch/alpha/include/asm/jensen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_JENSEN_H
 #define __ALPHA_JENSEN_H
 
diff --git a/arch/alpha/include/asm/kmap_types.h b/arch/alpha/include/asm/kmap_types.h
index a8d4ec8ea4b6..651714b45729 100644
--- a/arch/alpha/include/asm/kmap_types.h
+++ b/arch/alpha/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
diff --git a/arch/alpha/include/asm/linkage.h b/arch/alpha/include/asm/linkage.h
index 7cfd06e8c935..aa8661fa60dc 100644
--- a/arch/alpha/include/asm/linkage.h
+++ b/arch/alpha/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/alpha/include/asm/local.h b/arch/alpha/include/asm/local.h
index 9c94b8456043..fab26a1c93d5 100644
--- a/arch/alpha/include/asm/local.h
+++ b/arch/alpha/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_LOCAL_H
 #define _ALPHA_LOCAL_H
 
diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h
index 75cb3641ed2f..a6b73c6d10ee 100644
--- a/arch/alpha/include/asm/machvec.h
+++ b/arch/alpha/include/asm/machvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_MACHVEC_H
 #define __ALPHA_MACHVEC_H 1
 
diff --git a/arch/alpha/include/asm/mc146818rtc.h b/arch/alpha/include/asm/mc146818rtc.h
index 097703f1c8cb..2154fd4f7857 100644
--- a/arch/alpha/include/asm/mc146818rtc.h
+++ b/arch/alpha/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/alpha/include/asm/mce.h b/arch/alpha/include/asm/mce.h
index 660285b9aca8..200e04e98a2f 100644
--- a/arch/alpha/include/asm/mce.h
+++ b/arch/alpha/include/asm/mce.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_MCE_H
 #define __ALPHA_MCE_H
 
diff --git a/arch/alpha/include/asm/mmu.h b/arch/alpha/include/asm/mmu.h
index 3dc127779329..dadfc1b6e3e7 100644
--- a/arch/alpha/include/asm/mmu.h
+++ b/arch/alpha/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_MMU_H
 #define __ALPHA_MMU_H
 
diff --git a/arch/alpha/include/asm/mmu_context.h b/arch/alpha/include/asm/mmu_context.h
index 384bd47b5187..6d7d9bc1b4b8 100644
--- a/arch/alpha/include/asm/mmu_context.h
+++ b/arch/alpha/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_MMU_CONTEXT_H
 #define __ALPHA_MMU_CONTEXT_H
 
@@ -8,6 +9,7 @@
  */
 
 #include <linux/mm_types.h>
+#include <linux/sched.h>
 
 #include <asm/machvec.h>
 #include <asm/compiler.h>
diff --git a/arch/alpha/include/asm/mmzone.h b/arch/alpha/include/asm/mmzone.h
index 14ce27bccd24..889b5d3ad825 100644
--- a/arch/alpha/include/asm/mmzone.h
+++ b/arch/alpha/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
  * Adapted for the alpha wildfire architecture Jan 2001.
diff --git a/arch/alpha/include/asm/module.h b/arch/alpha/include/asm/module.h
index 9cd13b55155f..1e96e42f5d54 100644
--- a/arch/alpha/include/asm/module.h
+++ b/arch/alpha/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_MODULE_H
 #define _ALPHA_MODULE_H
 
diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h
index 07af062544fb..f3fb2848470a 100644
--- a/arch/alpha/include/asm/page.h
+++ b/arch/alpha/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_PAGE_H
 #define _ALPHA_PAGE_H
 
diff --git a/arch/alpha/include/asm/pal.h b/arch/alpha/include/asm/pal.h
index 5422a47646fc..db2b3b18b34c 100644
--- a/arch/alpha/include/asm/pal.h
+++ b/arch/alpha/include/asm/pal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_PAL_H
 #define __ALPHA_PAL_H
 
diff --git a/arch/alpha/include/asm/param.h b/arch/alpha/include/asm/param.h
index a5b68b268bcf..cfe947ce9461 100644
--- a/arch/alpha/include/asm/param.h
+++ b/arch/alpha/include/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ALPHA_PARAM_H
 #define _ASM_ALPHA_PARAM_H
 
diff --git a/arch/alpha/include/asm/parport.h b/arch/alpha/include/asm/parport.h
index 6abd0af11f13..0519a51e61f8 100644
--- a/arch/alpha/include/asm/parport.h
+++ b/arch/alpha/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * parport.h: platform-specific PC-style parport initialisation
  *
diff --git a/arch/alpha/include/asm/pci.h b/arch/alpha/include/asm/pci.h
index a06c24b3a2e1..fc988c16e894 100644
--- a/arch/alpha/include/asm/pci.h
+++ b/arch/alpha/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_PCI_H
 #define __ALPHA_PCI_H
 
diff --git a/arch/alpha/include/asm/percpu.h b/arch/alpha/include/asm/percpu.h
index 2c12378e3aa9..6923249f2d49 100644
--- a/arch/alpha/include/asm/percpu.h
+++ b/arch/alpha/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_PERCPU_H
 #define __ALPHA_PERCPU_H
 
diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index c2ebb6f36c9d..ab3e3a8638fb 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_PGALLOC_H
 #define _ALPHA_PGALLOC_H
 
diff --git a/arch/alpha/include/asm/pgtable.h b/arch/alpha/include/asm/pgtable.h
index a9a119592372..89c2032f9960 100644
--- a/arch/alpha/include/asm/pgtable.h
+++ b/arch/alpha/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_PGTABLE_H
 #define _ALPHA_PGTABLE_H
 
diff --git a/arch/alpha/include/asm/processor.h b/arch/alpha/include/asm/processor.h
index 2fec2dee3020..bfe784f2d4af 100644
--- a/arch/alpha/include/asm/processor.h
+++ b/arch/alpha/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-alpha/processor.h
  *
diff --git a/arch/alpha/include/asm/ptrace.h b/arch/alpha/include/asm/ptrace.h
index 9047c2fe8f23..df5f317ab3fc 100644
--- a/arch/alpha/include/asm/ptrace.h
+++ b/arch/alpha/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMAXP_PTRACE_H
 #define _ASMAXP_PTRACE_H
 
diff --git a/arch/alpha/include/asm/rwsem.h b/arch/alpha/include/asm/rwsem.h
index 77873d0ad293..cf8fc8f9a2ed 100644
--- a/arch/alpha/include/asm/rwsem.h
+++ b/arch/alpha/include/asm/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_RWSEM_H
 #define _ALPHA_RWSEM_H
 
@@ -21,7 +22,7 @@
 #define RWSEM_ACTIVE_READ_BIAS		RWSEM_ACTIVE_BIAS
 #define RWSEM_ACTIVE_WRITE_BIAS		(RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
 
-static inline void __down_read(struct rw_semaphore *sem)
+static inline int ___down_read(struct rw_semaphore *sem)
 {
 	long oldcount;
 #ifndef	CONFIG_SMP
@@ -41,10 +42,24 @@ static inline void __down_read(struct rw_semaphore *sem)
 	:"=&r" (oldcount), "=m" (sem->count), "=&r" (temp)
 	:"Ir" (RWSEM_ACTIVE_READ_BIAS), "m" (sem->count) : "memory");
 #endif
-	if (unlikely(oldcount < 0))
+	return (oldcount < 0);
+}
+
+static inline void __down_read(struct rw_semaphore *sem)
+{
+	if (unlikely(___down_read(sem)))
 		rwsem_down_read_failed(sem);
 }
 
+static inline int __down_read_killable(struct rw_semaphore *sem)
+{
+	if (unlikely(___down_read(sem)))
+		if (IS_ERR(rwsem_down_read_failed_killable(sem)))
+			return -EINTR;
+
+	return 0;
+}
+
 /*
  * trylock for reading -- returns 1 if successful, 0 if contention
  */
@@ -94,9 +109,10 @@ static inline void __down_write(struct rw_semaphore *sem)
 
 static inline int __down_write_killable(struct rw_semaphore *sem)
 {
-	if (unlikely(___down_write(sem)))
+	if (unlikely(___down_write(sem))) {
 		if (IS_ERR(rwsem_down_write_failed_killable(sem)))
 			return -EINTR;
+	}
 
 	return 0;
 }
diff --git a/arch/alpha/include/asm/serial.h b/arch/alpha/include/asm/serial.h
index e31557fc06cc..91115447319c 100644
--- a/arch/alpha/include/asm/serial.h
+++ b/arch/alpha/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-alpha/serial.h
  */
diff --git a/arch/alpha/include/asm/shmparam.h b/arch/alpha/include/asm/shmparam.h
index cc901d58aebb..0c04fde1aeba 100644
--- a/arch/alpha/include/asm/shmparam.h
+++ b/arch/alpha/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMAXP_SHMPARAM_H
 #define _ASMAXP_SHMPARAM_H
 
diff --git a/arch/alpha/include/asm/signal.h b/arch/alpha/include/asm/signal.h
index 963f0494dca7..a40f02011667 100644
--- a/arch/alpha/include/asm/signal.h
+++ b/arch/alpha/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMAXP_SIGNAL_H
 #define _ASMAXP_SIGNAL_H
 
diff --git a/arch/alpha/include/asm/smp.h b/arch/alpha/include/asm/smp.h
index c46e714aa3e0..2264ae72673b 100644
--- a/arch/alpha/include/asm/smp.h
+++ b/arch/alpha/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
diff --git a/arch/alpha/include/asm/socket.h b/arch/alpha/include/asm/socket.h
index 8d806d80ed24..76a32817e7be 100644
--- a/arch/alpha/include/asm/socket.h
+++ b/arch/alpha/include/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SOCKET_H
 #define _ASM_SOCKET_H
 
diff --git a/arch/alpha/include/asm/special_insns.h b/arch/alpha/include/asm/special_insns.h
index 88d3452b21f0..ca2c5c30b22e 100644
--- a/arch/alpha/include/asm/special_insns.h
+++ b/arch/alpha/include/asm/special_insns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_SPECIAL_INSNS_H
 #define __ALPHA_SPECIAL_INSNS_H
 
diff --git a/arch/alpha/include/asm/spinlock.h b/arch/alpha/include/asm/spinlock.h
index 718ac0b64adf..1221cbb86a6f 100644
--- a/arch/alpha/include/asm/spinlock.h
+++ b/arch/alpha/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_SPINLOCK_H
 #define _ALPHA_SPINLOCK_H
 
@@ -13,7 +14,6 @@
  * We make no fairness assumptions. They have a cost.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 #define arch_spin_is_locked(x)	((x)->lock != 0)
 
 static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
@@ -54,16 +54,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
 
 /***********************************************************/
 
-static inline int arch_read_can_lock(arch_rwlock_t *lock)
-{
-	return (lock->lock & 1) == 0;
-}
-
-static inline int arch_write_can_lock(arch_rwlock_t *lock)
-{
-	return lock->lock == 0;
-}
-
 static inline void arch_read_lock(arch_rwlock_t *lock)
 {
 	long regx;
@@ -170,7 +160,4 @@ static inline void arch_write_unlock(arch_rwlock_t * lock)
 	lock->lock = 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ALPHA_SPINLOCK_H */
diff --git a/arch/alpha/include/asm/spinlock_types.h b/arch/alpha/include/asm/spinlock_types.h
index 54c2afce0a1d..1d5716bc060b 100644
--- a/arch/alpha/include/asm/spinlock_types.h
+++ b/arch/alpha/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_SPINLOCK_TYPES_H
 #define _ALPHA_SPINLOCK_TYPES_H
 
diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h
index 9eb9933d845f..f043f91ff988 100644
--- a/arch/alpha/include/asm/string.h
+++ b/arch/alpha/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_STRING_H__
 #define __ALPHA_STRING_H__
 
diff --git a/arch/alpha/include/asm/switch_to.h b/arch/alpha/include/asm/switch_to.h
index 44c0d4f2c0b2..762b7f975310 100644
--- a/arch/alpha/include/asm/switch_to.h
+++ b/arch/alpha/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_SWITCH_TO_H
 #define __ALPHA_SWITCH_TO_H
 
diff --git a/arch/alpha/include/asm/syscall.h b/arch/alpha/include/asm/syscall.h
index 88d28eb2a566..d73a6fcb519c 100644
--- a/arch/alpha/include/asm/syscall.h
+++ b/arch/alpha/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ALPHA_SYSCALL_H
 #define _ASM_ALPHA_SYSCALL_H
 
diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
index 7fde0f88da88..6a8c53dec57e 100644
--- a/arch/alpha/include/asm/termios.h
+++ b/arch/alpha/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_TERMIOS_H
 #define _ALPHA_TERMIOS_H
 
diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
index e9e90bfa2b50..8c20c5e35432 100644
--- a/arch/alpha/include/asm/thread_info.h
+++ b/arch/alpha/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_THREAD_INFO_H
 #define _ALPHA_THREAD_INFO_H
 
diff --git a/arch/alpha/include/asm/timex.h b/arch/alpha/include/asm/timex.h
index afa0c45e3e98..b565cc6f408e 100644
--- a/arch/alpha/include/asm/timex.h
+++ b/arch/alpha/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-alpha/timex.h
  *
diff --git a/arch/alpha/include/asm/tlb.h b/arch/alpha/include/asm/tlb.h
index 42866759f3fa..8f5042b61875 100644
--- a/arch/alpha/include/asm/tlb.h
+++ b/arch/alpha/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_TLB_H
 #define _ALPHA_TLB_H
 
diff --git a/arch/alpha/include/asm/tlbflush.h b/arch/alpha/include/asm/tlbflush.h
index e89e0c2e15b1..f8b492408f51 100644
--- a/arch/alpha/include/asm/tlbflush.h
+++ b/arch/alpha/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_TLBFLUSH_H
 #define _ALPHA_TLBFLUSH_H
 
diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h
index 9251e13e144f..e6e13a85796a 100644
--- a/arch/alpha/include/asm/topology.h
+++ b/arch/alpha/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ALPHA_TOPOLOGY_H
 #define _ASM_ALPHA_TOPOLOGY_H
 
diff --git a/arch/alpha/include/asm/types.h b/arch/alpha/include/asm/types.h
index 0bc66e1d3a7e..b60b60276484 100644
--- a/arch/alpha/include/asm/types.h
+++ b/arch/alpha/include/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_TYPES_H
 #define _ALPHA_TYPES_H
 
diff --git a/arch/alpha/include/asm/uaccess.h b/arch/alpha/include/asm/uaccess.h
index 133a4884ed44..87d8c4f0307d 100644
--- a/arch/alpha/include/asm/uaccess.h
+++ b/arch/alpha/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ALPHA_UACCESS_H
 #define __ALPHA_UACCESS_H
 
diff --git a/arch/alpha/include/asm/ucontext.h b/arch/alpha/include/asm/ucontext.h
index 47578ab42152..af1f3465b8d7 100644
--- a/arch/alpha/include/asm/ucontext.h
+++ b/arch/alpha/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMAXP_UCONTEXT_H
 #define _ASMAXP_UCONTEXT_H
 
diff --git a/arch/alpha/include/asm/unaligned.h b/arch/alpha/include/asm/unaligned.h
index 3787c60aed3f..863c807b66f8 100644
--- a/arch/alpha/include/asm/unaligned.h
+++ b/arch/alpha/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ALPHA_UNALIGNED_H
 #define _ASM_ALPHA_UNALIGNED_H
 
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index db7fc0f511e2..d6e29a1de4cc 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_UNISTD_H
 #define _ALPHA_UNISTD_H
 
diff --git a/arch/alpha/include/asm/user.h b/arch/alpha/include/asm/user.h
index a4eb6a4ca8d1..3df37492c7b7 100644
--- a/arch/alpha/include/asm/user.h
+++ b/arch/alpha/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_USER_H
 #define _ALPHA_USER_H
 
diff --git a/arch/alpha/include/asm/vga.h b/arch/alpha/include/asm/vga.h
index 3c1c2b6128e7..4c347a8454c7 100644
--- a/arch/alpha/include/asm/vga.h
+++ b/arch/alpha/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/arch/alpha/include/asm/word-at-a-time.h b/arch/alpha/include/asm/word-at-a-time.h
index 902e6ab00a06..4035265f1ad9 100644
--- a/arch/alpha/include/asm/word-at-a-time.h
+++ b/arch/alpha/include/asm/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_WORD_AT_A_TIME_H
 #define _ASM_WORD_AT_A_TIME_H
 
diff --git a/arch/alpha/include/asm/wrperfmon.h b/arch/alpha/include/asm/wrperfmon.h
index 319bf6788d87..c97b82a1f7db 100644
--- a/arch/alpha/include/asm/wrperfmon.h
+++ b/arch/alpha/include/asm/wrperfmon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for use with the Alpha wrperfmon PAL call.
  */
diff --git a/arch/alpha/include/asm/xchg.h b/arch/alpha/include/asm/xchg.h
index 0ca9724597c1..68dfb3cb7145 100644
--- a/arch/alpha/include/asm/xchg.h
+++ b/arch/alpha/include/asm/xchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ALPHA_CMPXCHG_H
 #error Do not include xchg.h directly!
 #else
diff --git a/arch/alpha/include/uapi/asm/a.out.h b/arch/alpha/include/uapi/asm/a.out.h
index 547707246f63..7d692df04ba9 100644
--- a/arch/alpha/include/uapi/asm/a.out.h
+++ b/arch/alpha/include/uapi/asm/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ALPHA_A_OUT_H__
 #define _UAPI__ALPHA_A_OUT_H__
 
diff --git a/arch/alpha/include/uapi/asm/auxvec.h b/arch/alpha/include/uapi/asm/auxvec.h
index a3a579dfdb4d..57cae8780d81 100644
--- a/arch/alpha/include/uapi/asm/auxvec.h
+++ b/arch/alpha/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_ALPHA_AUXVEC_H
 #define __ASM_ALPHA_AUXVEC_H
 
diff --git a/arch/alpha/include/uapi/asm/bitsperlong.h b/arch/alpha/include/uapi/asm/bitsperlong.h
index ad57f7868203..6c5bf7d03f4e 100644
--- a/arch/alpha/include/uapi/asm/bitsperlong.h
+++ b/arch/alpha/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_ALPHA_BITSPERLONG_H
 #define __ASM_ALPHA_BITSPERLONG_H
 
diff --git a/arch/alpha/include/uapi/asm/byteorder.h b/arch/alpha/include/uapi/asm/byteorder.h
index 73683093202d..efa9b51b4595 100644
--- a/arch/alpha/include/uapi/asm/byteorder.h
+++ b/arch/alpha/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_BYTEORDER_H
 #define _ALPHA_BYTEORDER_H
 
diff --git a/arch/alpha/include/uapi/asm/compiler.h b/arch/alpha/include/uapi/asm/compiler.h
index 32cc7833f0c1..0e00c0e13374 100644
--- a/arch/alpha/include/uapi/asm/compiler.h
+++ b/arch/alpha/include/uapi/asm/compiler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ALPHA_COMPILER_H
 #define _UAPI__ALPHA_COMPILER_H
 
diff --git a/arch/alpha/include/uapi/asm/console.h b/arch/alpha/include/uapi/asm/console.h
index fd08a191f360..5fcb65300b56 100644
--- a/arch/alpha/include/uapi/asm/console.h
+++ b/arch/alpha/include/uapi/asm/console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__AXP_CONSOLE_H
 #define _UAPI__AXP_CONSOLE_H
 
diff --git a/arch/alpha/include/uapi/asm/errno.h b/arch/alpha/include/uapi/asm/errno.h
index 17f92aa76b2f..3d265f6babaf 100644
--- a/arch/alpha/include/uapi/asm/errno.h
+++ b/arch/alpha/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_ERRNO_H
 #define _ALPHA_ERRNO_H
 
diff --git a/arch/alpha/include/uapi/asm/fcntl.h b/arch/alpha/include/uapi/asm/fcntl.h
index 09f49a6b87d1..50bdc8e8a271 100644
--- a/arch/alpha/include/uapi/asm/fcntl.h
+++ b/arch/alpha/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_FCNTL_H
 #define _ALPHA_FCNTL_H
 
diff --git a/arch/alpha/include/uapi/asm/fpu.h b/arch/alpha/include/uapi/asm/fpu.h
index 21a053ca2233..cea9eafa056f 100644
--- a/arch/alpha/include/uapi/asm/fpu.h
+++ b/arch/alpha/include/uapi/asm/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_ALPHA_FPU_H
 #define _UAPI__ASM_ALPHA_FPU_H
 
diff --git a/arch/alpha/include/uapi/asm/gentrap.h b/arch/alpha/include/uapi/asm/gentrap.h
index ae50cc3192c7..c02ccc5ecec0 100644
--- a/arch/alpha/include/uapi/asm/gentrap.h
+++ b/arch/alpha/include/uapi/asm/gentrap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMAXP_GENTRAP_H
 #define _ASMAXP_GENTRAP_H
 
diff --git a/arch/alpha/include/uapi/asm/ioctl.h b/arch/alpha/include/uapi/asm/ioctl.h
index fc63727f4178..a9d68a08ee84 100644
--- a/arch/alpha/include/uapi/asm/ioctl.h
+++ b/arch/alpha/include/uapi/asm/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_IOCTL_H
 #define _ALPHA_IOCTL_H
 
diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index 1cd7dc7d4870..3729d92d3fa8 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ALPHA_IOCTLS_H
 #define _ASM_ALPHA_IOCTLS_H
 
diff --git a/arch/alpha/include/uapi/asm/ipcbuf.h b/arch/alpha/include/uapi/asm/ipcbuf.h
index 84c7e51cb6d0..90d6445a14df 100644
--- a/arch/alpha/include/uapi/asm/ipcbuf.h
+++ b/arch/alpha/include/uapi/asm/ipcbuf.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ipcbuf.h>
diff --git a/arch/alpha/include/uapi/asm/kvm_para.h b/arch/alpha/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/alpha/include/uapi/asm/kvm_para.h
+++ b/arch/alpha/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/alpha/include/uapi/asm/mman.h b/arch/alpha/include/uapi/asm/mman.h
index 3b26cc62dadb..6bf730063e3f 100644
--- a/arch/alpha/include/uapi/asm/mman.h
+++ b/arch/alpha/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ALPHA_MMAN_H__
 #define __ALPHA_MMAN_H__
 
diff --git a/arch/alpha/include/uapi/asm/msgbuf.h b/arch/alpha/include/uapi/asm/msgbuf.h
index 98496501a2bb..8c5d4d8c1b16 100644
--- a/arch/alpha/include/uapi/asm/msgbuf.h
+++ b/arch/alpha/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_MSGBUF_H
 #define _ALPHA_MSGBUF_H
 
diff --git a/arch/alpha/include/uapi/asm/pal.h b/arch/alpha/include/uapi/asm/pal.h
index dfc8140b9088..7427e028db64 100644
--- a/arch/alpha/include/uapi/asm/pal.h
+++ b/arch/alpha/include/uapi/asm/pal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ALPHA_PAL_H
 #define _UAPI__ALPHA_PAL_H
 
diff --git a/arch/alpha/include/uapi/asm/param.h b/arch/alpha/include/uapi/asm/param.h
index dbcd9834af6d..49c7119934e2 100644
--- a/arch/alpha/include/uapi/asm/param.h
+++ b/arch/alpha/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_ALPHA_PARAM_H
 #define _UAPI_ASM_ALPHA_PARAM_H
 
diff --git a/arch/alpha/include/uapi/asm/poll.h b/arch/alpha/include/uapi/asm/poll.h
index c98509d3149e..b7132a305a47 100644
--- a/arch/alpha/include/uapi/asm/poll.h
+++ b/arch/alpha/include/uapi/asm/poll.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/poll.h>
diff --git a/arch/alpha/include/uapi/asm/posix_types.h b/arch/alpha/include/uapi/asm/posix_types.h
index 5a8a48320efe..04f1ea57505b 100644
--- a/arch/alpha/include/uapi/asm/posix_types.h
+++ b/arch/alpha/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_POSIX_TYPES_H
 #define _ALPHA_POSIX_TYPES_H
 
diff --git a/arch/alpha/include/uapi/asm/ptrace.h b/arch/alpha/include/uapi/asm/ptrace.h
index 5ce83fa9a05b..1dfd065e45b1 100644
--- a/arch/alpha/include/uapi/asm/ptrace.h
+++ b/arch/alpha/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASMAXP_PTRACE_H
 #define _UAPI_ASMAXP_PTRACE_H
 
diff --git a/arch/alpha/include/uapi/asm/reg.h b/arch/alpha/include/uapi/asm/reg.h
index 86ff916fb069..2652f3a385f7 100644
--- a/arch/alpha/include/uapi/asm/reg.h
+++ b/arch/alpha/include/uapi/asm/reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __reg_h__
 #define __reg_h__
 
diff --git a/arch/alpha/include/uapi/asm/regdef.h b/arch/alpha/include/uapi/asm/regdef.h
index 142df9c4f8b8..cc99df0c60a5 100644
--- a/arch/alpha/include/uapi/asm/regdef.h
+++ b/arch/alpha/include/uapi/asm/regdef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __alpha_regdef_h__
 #define __alpha_regdef_h__
 
diff --git a/arch/alpha/include/uapi/asm/resource.h b/arch/alpha/include/uapi/asm/resource.h
index c10874ff5973..362423ffe10b 100644
--- a/arch/alpha/include/uapi/asm/resource.h
+++ b/arch/alpha/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_RESOURCE_H
 #define _ALPHA_RESOURCE_H
 
diff --git a/arch/alpha/include/uapi/asm/sembuf.h b/arch/alpha/include/uapi/asm/sembuf.h
index 7b38b1534784..f28ffa668b2f 100644
--- a/arch/alpha/include/uapi/asm/sembuf.h
+++ b/arch/alpha/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_SEMBUF_H
 #define _ALPHA_SEMBUF_H
 
diff --git a/arch/alpha/include/uapi/asm/setup.h b/arch/alpha/include/uapi/asm/setup.h
index b50014b30909..13b7ee465b0e 100644
--- a/arch/alpha/include/uapi/asm/setup.h
+++ b/arch/alpha/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ALPHA_SETUP_H
 #define __ALPHA_SETUP_H
 
diff --git a/arch/alpha/include/uapi/asm/shmbuf.h b/arch/alpha/include/uapi/asm/shmbuf.h
index 37ee84f05085..7e041ca2eb40 100644
--- a/arch/alpha/include/uapi/asm/shmbuf.h
+++ b/arch/alpha/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_SHMBUF_H
 #define _ALPHA_SHMBUF_H
 
diff --git a/arch/alpha/include/uapi/asm/sigcontext.h b/arch/alpha/include/uapi/asm/sigcontext.h
index 323cdb026198..5428c42567e6 100644
--- a/arch/alpha/include/uapi/asm/sigcontext.h
+++ b/arch/alpha/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMAXP_SIGCONTEXT_H
 #define _ASMAXP_SIGCONTEXT_H
 
diff --git a/arch/alpha/include/uapi/asm/siginfo.h b/arch/alpha/include/uapi/asm/siginfo.h
index 70494d1d8f29..0cf3b527b274 100644
--- a/arch/alpha/include/uapi/asm/siginfo.h
+++ b/arch/alpha/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_SIGINFO_H
 #define _ALPHA_SIGINFO_H
 
diff --git a/arch/alpha/include/uapi/asm/signal.h b/arch/alpha/include/uapi/asm/signal.h
index dd4ca4bcbb4a..74c750bf1c1a 100644
--- a/arch/alpha/include/uapi/asm/signal.h
+++ b/arch/alpha/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASMAXP_SIGNAL_H
 #define _UAPI_ASMAXP_SIGNAL_H
 
diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index c6133a045352..be14f16149d5 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_SOCKET_H
 #define _UAPI_ASM_SOCKET_H
 
diff --git a/arch/alpha/include/uapi/asm/sockios.h b/arch/alpha/include/uapi/asm/sockios.h
index 7932c7ab4a4d..ba287e4b01bf 100644
--- a/arch/alpha/include/uapi/asm/sockios.h
+++ b/arch/alpha/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ALPHA_SOCKIOS_H
 #define _ASM_ALPHA_SOCKIOS_H
 
diff --git a/arch/alpha/include/uapi/asm/stat.h b/arch/alpha/include/uapi/asm/stat.h
index 07ad3e6b3f3e..3f454fbd307a 100644
--- a/arch/alpha/include/uapi/asm/stat.h
+++ b/arch/alpha/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_STAT_H
 #define _ALPHA_STAT_H
 
diff --git a/arch/alpha/include/uapi/asm/statfs.h b/arch/alpha/include/uapi/asm/statfs.h
index ccd2e186bfd8..95852a4f576d 100644
--- a/arch/alpha/include/uapi/asm/statfs.h
+++ b/arch/alpha/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_STATFS_H
 #define _ALPHA_STATFS_H
 
diff --git a/arch/alpha/include/uapi/asm/swab.h b/arch/alpha/include/uapi/asm/swab.h
index 4d682b16c7c4..1cc70d2727f7 100644
--- a/arch/alpha/include/uapi/asm/swab.h
+++ b/arch/alpha/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_SWAB_H
 #define _ALPHA_SWAB_H
 
diff --git a/arch/alpha/include/uapi/asm/sysinfo.h b/arch/alpha/include/uapi/asm/sysinfo.h
index 0b80e79d75e5..188ea76c7f2f 100644
--- a/arch/alpha/include/uapi/asm/sysinfo.h
+++ b/arch/alpha/include/uapi/asm/sysinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-alpha/sysinfo.h
  */
diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h
index 879dd3589921..05e0398a83a6 100644
--- a/arch/alpha/include/uapi/asm/termbits.h
+++ b/arch/alpha/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ALPHA_TERMBITS_H
 #define _ALPHA_TERMBITS_H
 
diff --git a/arch/alpha/include/uapi/asm/termios.h b/arch/alpha/include/uapi/asm/termios.h
index 580ed1e4854c..e1b981222a24 100644
--- a/arch/alpha/include/uapi/asm/termios.h
+++ b/arch/alpha/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ALPHA_TERMIOS_H
 #define _UAPI_ALPHA_TERMIOS_H
 
diff --git a/arch/alpha/include/uapi/asm/types.h b/arch/alpha/include/uapi/asm/types.h
index 8d1024d7be05..6c3d49938126 100644
--- a/arch/alpha/include/uapi/asm/types.h
+++ b/arch/alpha/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ALPHA_TYPES_H
 #define _UAPI_ALPHA_TYPES_H
 
diff --git a/arch/alpha/include/uapi/asm/unistd.h b/arch/alpha/include/uapi/asm/unistd.h
index 53de540e39a7..e153ca6e15d6 100644
--- a/arch/alpha/include/uapi/asm/unistd.h
+++ b/arch/alpha/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ALPHA_UNISTD_H
 #define _UAPI_ALPHA_UNISTD_H
 
diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 8ce13d7a2ad3..bf7b41fa7b01 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/alpha/kernel/asm-offsets.c b/arch/alpha/kernel/asm-offsets.c
index 6ff8886e7e22..2e125e5c1508 100644
--- a/arch/alpha/kernel/asm-offsets.c
+++ b/arch/alpha/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed to extract
diff --git a/arch/alpha/kernel/binfmt_loader.c b/arch/alpha/kernel/binfmt_loader.c
index 9525660c93c0..a8d0d6e06526 100644
--- a/arch/alpha/kernel/binfmt_loader.c
+++ b/arch/alpha/kernel/binfmt_loader.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/file.h>
diff --git a/arch/alpha/kernel/console.c b/arch/alpha/kernel/console.c
index 6a61deed4a85..8e9a41966881 100644
--- a/arch/alpha/kernel/console.c
+++ b/arch/alpha/kernel/console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/console.c
  *
diff --git a/arch/alpha/kernel/core_apecs.c b/arch/alpha/kernel/core_apecs.c
index 708c831efa76..1bf3eef34c22 100644
--- a/arch/alpha/kernel/core_apecs.c
+++ b/arch/alpha/kernel/core_apecs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_apecs.c
  *
diff --git a/arch/alpha/kernel/core_cia.c b/arch/alpha/kernel/core_cia.c
index c44339e176c1..4b38386f6e62 100644
--- a/arch/alpha/kernel/core_cia.c
+++ b/arch/alpha/kernel/core_cia.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_cia.c
  *
diff --git a/arch/alpha/kernel/core_irongate.c b/arch/alpha/kernel/core_irongate.c
index 83d0a359a1b2..aec757250e07 100644
--- a/arch/alpha/kernel/core_irongate.c
+++ b/arch/alpha/kernel/core_irongate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_irongate.c
  *
diff --git a/arch/alpha/kernel/core_lca.c b/arch/alpha/kernel/core_lca.c
index cb2801cfd3df..81c0c43635b0 100644
--- a/arch/alpha/kernel/core_lca.c
+++ b/arch/alpha/kernel/core_lca.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_lca.c
  *
diff --git a/arch/alpha/kernel/core_marvel.c b/arch/alpha/kernel/core_marvel.c
index b10c316475dd..bdebb8c206f1 100644
--- a/arch/alpha/kernel/core_marvel.c
+++ b/arch/alpha/kernel/core_marvel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_marvel.c
  *
diff --git a/arch/alpha/kernel/core_mcpcia.c b/arch/alpha/kernel/core_mcpcia.c
index da7bcc372f16..b1549db54260 100644
--- a/arch/alpha/kernel/core_mcpcia.c
+++ b/arch/alpha/kernel/core_mcpcia.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_mcpcia.c
  *
diff --git a/arch/alpha/kernel/core_polaris.c b/arch/alpha/kernel/core_polaris.c
index c5a271d37abd..75d622d96ff2 100644
--- a/arch/alpha/kernel/core_polaris.c
+++ b/arch/alpha/kernel/core_polaris.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *      linux/arch/alpha/kernel/core_polaris.c
  *
diff --git a/arch/alpha/kernel/core_t2.c b/arch/alpha/kernel/core_t2.c
index 3ada4f7b085d..2c00b61ca379 100644
--- a/arch/alpha/kernel/core_t2.c
+++ b/arch/alpha/kernel/core_t2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_t2.c
  *
diff --git a/arch/alpha/kernel/core_titan.c b/arch/alpha/kernel/core_titan.c
index b532d925443d..132b06bdf903 100644
--- a/arch/alpha/kernel/core_titan.c
+++ b/arch/alpha/kernel/core_titan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_titan.c
  *
diff --git a/arch/alpha/kernel/core_tsunami.c b/arch/alpha/kernel/core_tsunami.c
index 61893d7bdda5..e7c956ea46b6 100644
--- a/arch/alpha/kernel/core_tsunami.c
+++ b/arch/alpha/kernel/core_tsunami.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/core_tsunami.c
  *
diff --git a/arch/alpha/kernel/core_wildfire.c b/arch/alpha/kernel/core_wildfire.c
index 7e072443d7fd..cad36fc6ed7d 100644
--- a/arch/alpha/kernel/core_wildfire.c
+++ b/arch/alpha/kernel/core_wildfire.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/core_wildfire.c
  *
diff --git a/arch/alpha/kernel/entry.S b/arch/alpha/kernel/entry.S
index 98703d99b565..d92abb01c249 100644
--- a/arch/alpha/kernel/entry.S
+++ b/arch/alpha/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/kernel/entry.S
  *
diff --git a/arch/alpha/kernel/err_common.c b/arch/alpha/kernel/err_common.c
index 13d53b1c9657..94e1b3dcf6d4 100644
--- a/arch/alpha/kernel/err_common.c
+++ b/arch/alpha/kernel/err_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/err_common.c
  *
diff --git a/arch/alpha/kernel/err_ev6.c b/arch/alpha/kernel/err_ev6.c
index 51267ac5729b..8144f2045b5b 100644
--- a/arch/alpha/kernel/err_ev6.c
+++ b/arch/alpha/kernel/err_ev6.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/err_ev6.c
  *
diff --git a/arch/alpha/kernel/err_ev7.c b/arch/alpha/kernel/err_ev7.c
index d738a67112d4..565de1acf1f5 100644
--- a/arch/alpha/kernel/err_ev7.c
+++ b/arch/alpha/kernel/err_ev7.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/err_ev7.c
  *
diff --git a/arch/alpha/kernel/err_impl.h b/arch/alpha/kernel/err_impl.h
index ae529c416037..737b958a586d 100644
--- a/arch/alpha/kernel/err_impl.h
+++ b/arch/alpha/kernel/err_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	linux/arch/alpha/kernel/err_impl.h
  *
diff --git a/arch/alpha/kernel/err_marvel.c b/arch/alpha/kernel/err_marvel.c
index ae54ad91e18f..c0c0ccefc467 100644
--- a/arch/alpha/kernel/err_marvel.c
+++ b/arch/alpha/kernel/err_marvel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/err_marvel.c
  *
diff --git a/arch/alpha/kernel/err_titan.c b/arch/alpha/kernel/err_titan.c
index 14b26c466c89..0ffb2feea42a 100644
--- a/arch/alpha/kernel/err_titan.c
+++ b/arch/alpha/kernel/err_titan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/err_titan.c
  *
diff --git a/arch/alpha/kernel/es1888.c b/arch/alpha/kernel/es1888.c
index d584c85fea7a..297476bb08fb 100644
--- a/arch/alpha/kernel/es1888.c
+++ b/arch/alpha/kernel/es1888.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/es1888.c
  *
diff --git a/arch/alpha/kernel/gct.c b/arch/alpha/kernel/gct.c
index c0c7155448e0..8ac0088dca54 100644
--- a/arch/alpha/kernel/gct.c
+++ b/arch/alpha/kernel/gct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/gct.c
  */
diff --git a/arch/alpha/kernel/head.S b/arch/alpha/kernel/head.S
index c352499ab9f8..bb48a8ae4e79 100644
--- a/arch/alpha/kernel/head.S
+++ b/arch/alpha/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/kernel/head.S
  *
diff --git a/arch/alpha/kernel/io.c b/arch/alpha/kernel/io.c
index 19c5875ab398..3e3d49c254c5 100644
--- a/arch/alpha/kernel/io.c
+++ b/arch/alpha/kernel/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alpha IO and memory functions.
  */
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index 2f26ae74b61a..f6d2946edbd2 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/irq.c
  *
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index 1c8625cb0e25..da3e10d5f7fe 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alpha specific irq code.
  */
diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c
index e1861c77dabc..5d54c076a8ae 100644
--- a/arch/alpha/kernel/irq_i8259.c
+++ b/arch/alpha/kernel/irq_i8259.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *      linux/arch/alpha/kernel/irq_i8259.c
  *
diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h
index d507a234b05d..16f2b0276f3a 100644
--- a/arch/alpha/kernel/irq_impl.h
+++ b/arch/alpha/kernel/irq_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	linux/arch/alpha/kernel/irq_impl.h
  *
diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c
index 13c97a5b31e8..a968b10e687d 100644
--- a/arch/alpha/kernel/irq_pyxis.c
+++ b/arch/alpha/kernel/irq_pyxis.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/irq_pyxis.c
  *
diff --git a/arch/alpha/kernel/irq_srm.c b/arch/alpha/kernel/irq_srm.c
index a79fa30e7552..bfacd6a06194 100644
--- a/arch/alpha/kernel/irq_srm.c
+++ b/arch/alpha/kernel/irq_srm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Handle interrupts from the SRM, assuming no additional weirdness.
  */
diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h
index b7d69604b6d2..38f045ec5cd2 100644
--- a/arch/alpha/kernel/machvec_impl.h
+++ b/arch/alpha/kernel/machvec_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	linux/arch/alpha/kernel/machvec_impl.h
  *
diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index df0d0a5e9353..ce3a675c0c4b 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/osf_sys.c
  *
diff --git a/arch/alpha/kernel/pc873xx.c b/arch/alpha/kernel/pc873xx.c
index 27dcbff85613..63aee5d86e02 100644
--- a/arch/alpha/kernel/pc873xx.c
+++ b/arch/alpha/kernel/pc873xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ioport.h>
 #include <asm/io.h>
 
diff --git a/arch/alpha/kernel/pc873xx.h b/arch/alpha/kernel/pc873xx.h
index 25e16956fe3e..043533027573 100644
--- a/arch/alpha/kernel/pc873xx.h
+++ b/arch/alpha/kernel/pc873xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _PC873xx_H_
 #define _PC873xx_H_
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 676bab6e3123..b995987b1557 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/pci-noop.c
  *
diff --git a/arch/alpha/kernel/pci-sysfs.c b/arch/alpha/kernel/pci-sysfs.c
index cbecd527c696..f94c732fedeb 100644
--- a/arch/alpha/kernel/pci-sysfs.c
+++ b/arch/alpha/kernel/pci-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/kernel/pci-sysfs.c
  *
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 564114eb85e1..08235bb1f035 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/pci.c
  *
diff --git a/arch/alpha/kernel/pci_impl.h b/arch/alpha/kernel/pci_impl.h
index 2b0ac429f5eb..26231601630e 100644
--- a/arch/alpha/kernel/pci_impl.h
+++ b/arch/alpha/kernel/pci_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	linux/arch/alpha/kernel/pci_impl.h
  *
diff --git a/arch/alpha/kernel/pci_iommu.c b/arch/alpha/kernel/pci_iommu.c
index 7fd2329038a3..83b34b9188ea 100644
--- a/arch/alpha/kernel/pci_iommu.c
+++ b/arch/alpha/kernel/pci_iommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/pci_iommu.c
  */
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index 5c218aa3f3df..a1f6bc7f1e4c 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Hardware performance events for the Alpha.
  *
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index 0b9635040721..74bfb1f2d68e 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/process.c
  *
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index da2d6ec9c370..f1fce942fddc 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/interrupt.h>
 #include <linux/io.h>
 
diff --git a/arch/alpha/kernel/ptrace.c b/arch/alpha/kernel/ptrace.c
index 285a82d491ef..cb8d599e72d6 100644
--- a/arch/alpha/kernel/ptrace.c
+++ b/arch/alpha/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ptrace.c */
 /* By Ross Biro 1/23/92 */
 /* edited by Linus Torvalds */
diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
index ceed68c7500b..b3da0dcda47d 100644
--- a/arch/alpha/kernel/rtc.c
+++ b/arch/alpha/kernel/rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/rtc.c
  *
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 249229ab4942..5576f7646fb6 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/setup.c
  *
diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 8129dd92cadc..9ebb3bcbc626 100644
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/signal.c
  *
diff --git a/arch/alpha/kernel/smc37c93x.c b/arch/alpha/kernel/smc37c93x.c
index 6886b834f487..733f08966fd2 100644
--- a/arch/alpha/kernel/smc37c93x.c
+++ b/arch/alpha/kernel/smc37c93x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SMC 37C93X initialization code
  */
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index f6726a746427..d0dccae53ba9 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/smp.c
  *
diff --git a/arch/alpha/kernel/srmcons.c b/arch/alpha/kernel/srmcons.c
index e9c45b65a905..5da0aec8ce90 100644
--- a/arch/alpha/kernel/srmcons.c
+++ b/arch/alpha/kernel/srmcons.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/srmcons.c
  *
diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c
index 118dc6af1805..e56efd5b855f 100644
--- a/arch/alpha/kernel/sys_alcor.c
+++ b/arch/alpha/kernel/sys_alcor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_alcor.c
  *
@@ -181,10 +182,10 @@ alcor_init_irq(void)
  * comes in on.  This makes interrupt processing much easier.
  */
 
-static int __init
+static int
 alcor_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[7][5] __initdata = {
+	static char irq_tab[7][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		/* note: IDSEL 17 is XLT only */
 		{16+13, 16+13, 16+13, 16+13, 16+13},	/* IdSel 17,  TULIP  */
diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c
index 4c50f8f40cbb..10bc46a4ec40 100644
--- a/arch/alpha/kernel/sys_cabriolet.c
+++ b/arch/alpha/kernel/sys_cabriolet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_cabriolet.c
  *
@@ -173,10 +174,10 @@ pc164_init_irq(void)
  * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip.
  */
 
-static inline int __init
+static inline int
 eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[5][5] __initdata = {
+	static char irq_tab[5][5] = {
 		/*INT  INTA  INTB  INTC   INTD */
 		{16+0, 16+0, 16+5,  16+9, 16+13},  /* IdSel 6,  slot 0, J25 */
 		{16+1, 16+1, 16+6, 16+10, 16+14},  /* IdSel 7,  slot 1, J26 */
@@ -203,10 +204,10 @@ eb66p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
  * because it is the Saturn IO (SIO) PCI/ISA Bridge Chip.
  */
 
-static inline int __init
+static inline int
 cabriolet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[5][5] __initdata = {
+	static char irq_tab[5][5] = {
 		/*INT   INTA  INTB  INTC   INTD */
 		{ 16+2, 16+2, 16+7, 16+11, 16+15}, /* IdSel 5,  slot 2, J21 */
 		{ 16+0, 16+0, 16+5,  16+9, 16+13}, /* IdSel 6,  slot 0, J19 */
@@ -287,10 +288,10 @@ cia_cab_init_pci(void)
  * 
  */
 
-static inline int __init
+static inline int
 alphapc164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[7][5] __initdata = {
+	static char irq_tab[7][5] = {
 		/*INT   INTA  INTB   INTC   INTD */
 		{ 16+2, 16+2, 16+9,  16+13, 16+17}, /* IdSel  5, slot 2, J20 */
 		{ 16+0, 16+0, 16+7,  16+11, 16+15}, /* IdSel  6, slot 0, J29 */
diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c
index 6c35159bc00e..d33508621820 100644
--- a/arch/alpha/kernel/sys_dp264.c
+++ b/arch/alpha/kernel/sys_dp264.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_dp264.c
  *
@@ -356,7 +357,7 @@ clipper_init_irq(void)
  *  10	 64 bit PCI option slot 3 (not bus 0)
  */
 
-static int __init
+static int
 isa_irq_fixup(const struct pci_dev *dev, int irq)
 {
 	u8 irq8;
@@ -372,10 +373,10 @@ isa_irq_fixup(const struct pci_dev *dev, int irq)
 	return irq8 & 0xf;
 }
 
-static int __init
+static int
 dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[6][5] __initdata = {
+	static char irq_tab[6][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 ISA Bridge */
 		{ 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/
@@ -394,10 +395,10 @@ dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return isa_irq_fixup(dev, irq);
 }
 
-static int __init
+static int
 monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[13][5] __initdata = {
+	static char irq_tab[13][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{    45,    45,    45,    45,    45}, /* IdSel 3 21143 PCI1 */
 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 4 unused */
@@ -423,7 +424,7 @@ monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
 }
 
-static u8 __init
+static u8
 monet_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	struct pci_controller *hose = dev->sysdata;
@@ -456,10 +457,10 @@ monet_swizzle(struct pci_dev *dev, u8 *pinp)
 	return slot;
 }
 
-static int __init
+static int
 webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[13][5] __initdata = {
+	static char irq_tab[13][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 unused */
@@ -478,10 +479,10 @@ webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
 }
 
-static int __init
+static int
 clipper_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[7][5] __initdata = {
+	static char irq_tab[7][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{ 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */
 		{ 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */
diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c
index ad40a425e841..5251937ec1b4 100644
--- a/arch/alpha/kernel/sys_eb64p.c
+++ b/arch/alpha/kernel/sys_eb64p.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_eb64p.c
  *
@@ -167,10 +168,10 @@ eb64p_init_irq(void)
  * comes in on.  This makes interrupt processing much easier.
  */
 
-static int __init
+static int
 eb64p_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[5][5] __initdata = {
+	static char irq_tab[5][5] = {
 		/*INT  INTA  INTB  INTC   INTD */
 		{16+7, 16+7, 16+7, 16+7,  16+7},  /* IdSel 5,  slot ?, ?? */
 		{16+0, 16+0, 16+2, 16+4,  16+9},  /* IdSel 6,  slot ?, ?? */
diff --git a/arch/alpha/kernel/sys_eiger.c b/arch/alpha/kernel/sys_eiger.c
index 15f42083bdb3..016f79251141 100644
--- a/arch/alpha/kernel/sys_eiger.c
+++ b/arch/alpha/kernel/sys_eiger.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_eiger.c
  *
@@ -141,7 +142,7 @@ eiger_init_irq(void)
 	}
 }
 
-static int __init
+static int
 eiger_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	u8 irq_orig;
@@ -158,7 +159,7 @@ eiger_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return irq_orig - 0x80;
 }
 
-static u8 __init
+static u8
 eiger_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	struct pci_controller *hose = dev->sysdata;
diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c
index 608f2a7fa0a3..d0d44f543d77 100644
--- a/arch/alpha/kernel/sys_jensen.c
+++ b/arch/alpha/kernel/sys_jensen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_jensen.c
  *
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index 3e533920371f..8d34cf6e002a 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/alpha/kernel/sys_marvel.c
  *
diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c
index d5b9776a608d..6fa07dc5339d 100644
--- a/arch/alpha/kernel/sys_miata.c
+++ b/arch/alpha/kernel/sys_miata.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_miata.c
  *
@@ -149,10 +150,10 @@ miata_init_irq(void)
  * comes in on.  This makes interrupt processing much easier.
  */
 
-static int __init
+static int
 miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-        static char irq_tab[18][5] __initdata = {
+        static char irq_tab[18][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{16+ 8, 16+ 8, 16+ 8, 16+ 8, 16+ 8},  /* IdSel 14,  DC21142 */
 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 15,  EIDE    */
@@ -196,7 +197,7 @@ miata_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return COMMON_TABLE_LOOKUP;
 }
 
-static u8 __init
+static u8
 miata_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	int slot, pin = *pinp;
diff --git a/arch/alpha/kernel/sys_mikasa.c b/arch/alpha/kernel/sys_mikasa.c
index 5e82dc1ad6f2..3af4f94113e1 100644
--- a/arch/alpha/kernel/sys_mikasa.c
+++ b/arch/alpha/kernel/sys_mikasa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_mikasa.c
  *
@@ -145,10 +146,10 @@ mikasa_init_irq(void)
  * comes in on.  This makes interrupt processing much easier.
  */
 
-static int __init
+static int
 mikasa_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[8][5] __initdata = {
+	static char irq_tab[8][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{16+12, 16+12, 16+12, 16+12, 16+12},	/* IdSel 17,  SCSI */
 		{   -1,    -1,    -1,    -1,    -1},	/* IdSel 18,  PCEB */
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 8ae04a121186..239dc0e601d5 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_nautilus.c
  *
@@ -62,7 +63,7 @@ nautilus_init_irq(void)
 	common_init_isa_dma();
 }
 
-static int __init
+static int
 nautilus_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	/* Preserve the IRQ set up by the console.  */
diff --git a/arch/alpha/kernel/sys_noritake.c b/arch/alpha/kernel/sys_noritake.c
index 063e594fd969..b106f327f765 100644
--- a/arch/alpha/kernel/sys_noritake.c
+++ b/arch/alpha/kernel/sys_noritake.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_noritake.c
  *
@@ -193,10 +194,10 @@ noritake_init_irq(void)
  * comes in on.  This makes interrupt processing much easier.
  */
 
-static int __init
+static int
 noritake_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[15][5] __initdata = {
+	static char irq_tab[15][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		/* note: IDSELs 16, 17, and 25 are CORELLE only */
 		{ 16+1,  16+1,  16+1,  16+1,  16+1},  /* IdSel 16,  QLOGIC */
@@ -221,7 +222,7 @@ noritake_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return COMMON_TABLE_LOOKUP;
 }
 
-static u8 __init
+static u8
 noritake_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	int slot, pin = *pinp;
diff --git a/arch/alpha/kernel/sys_rawhide.c b/arch/alpha/kernel/sys_rawhide.c
index dfd510ae5d8c..b76f65d0e8b5 100644
--- a/arch/alpha/kernel/sys_rawhide.c
+++ b/arch/alpha/kernel/sys_rawhide.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_rawhide.c
  *
@@ -221,10 +222,10 @@ rawhide_init_irq(void)
  * 
  */
 
-static int __init
+static int
 rawhide_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[5][5] __initdata = {
+	static char irq_tab[5][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{ 16+16, 16+16, 16+16, 16+16, 16+16}, /* IdSel 1 SCSI PCI 1 */
 		{ 16+ 0, 16+ 0, 16+ 1, 16+ 2, 16+ 3}, /* IdSel 2 slot 2 */
diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c
index a3f485257170..07830cccabf9 100644
--- a/arch/alpha/kernel/sys_ruffian.c
+++ b/arch/alpha/kernel/sys_ruffian.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_ruffian.c
  *
@@ -117,10 +118,10 @@ ruffian_kill_arch (int mode)
  *
  */
 
-static int __init
+static int
 ruffian_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-        static char irq_tab[11][5] __initdata = {
+        static char irq_tab[11][5] = {
 	      /*INT  INTA INTB INTC INTD */
 		{-1,  -1,  -1,  -1,  -1},  /* IdSel 13,  21052	     */
 		{-1,  -1,  -1,  -1,  -1},  /* IdSel 14,  SIO	     */
@@ -139,7 +140,7 @@ ruffian_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return COMMON_TABLE_LOOKUP;
 }
 
-static u8 __init
+static u8
 ruffian_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	int slot, pin = *pinp;
diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c
index 08ee737d4fba..a3db719d3c38 100644
--- a/arch/alpha/kernel/sys_rx164.c
+++ b/arch/alpha/kernel/sys_rx164.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_rx164.c
  *
@@ -142,7 +143,7 @@ rx164_init_irq(void)
  * 
  */
 
-static int __init
+static int
 rx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 #if 0
@@ -156,7 +157,7 @@ rx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	  { 16+1, 16+1, 16+6, 16+11, 16+16},      /* IdSel 10, slot 4 */
 	};
 #else
-	static char irq_tab[6][5] __initdata = {
+	static char irq_tab[6][5] = {
 	  /*INT   INTA  INTB  INTC   INTD */
 	  { 16+0, 16+0, 16+6, 16+11, 16+16},      /* IdSel 5,  slot 0 */
 	  { 16+1, 16+1, 16+7, 16+12, 16+17},      /* IdSel 6,  slot 1 */
diff --git a/arch/alpha/kernel/sys_sable.c b/arch/alpha/kernel/sys_sable.c
index 8a0aa6d67b53..3cf0d32da5d8 100644
--- a/arch/alpha/kernel/sys_sable.c
+++ b/arch/alpha/kernel/sys_sable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_sable.c
  *
@@ -192,10 +193,10 @@ sable_init_irq(void)
  * with the values in the irq swizzling tables above.
  */
 
-static int __init
+static int
 sable_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[9][5] __initdata = {
+	static char irq_tab[9][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{ 32+0,  32+0,  32+0,  32+0,  32+0},  /* IdSel 0,  TULIP  */
 		{ 32+1,  32+1,  32+1,  32+1,  32+1},  /* IdSel 1,  SCSI   */
@@ -374,10 +375,10 @@ lynx_init_irq(void)
  * with the values in the irq swizzling tables above.
  */
 
-static int __init
+static int
 lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[19][5] __initdata = {
+	static char irq_tab[19][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 13,  PCEB   */
 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 14,  PPB    */
@@ -404,7 +405,7 @@ lynx_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return COMMON_TABLE_LOOKUP;
 }
 
-static u8 __init
+static u8
 lynx_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	int slot, pin = *pinp;
diff --git a/arch/alpha/kernel/sys_sio.c b/arch/alpha/kernel/sys_sio.c
index febd24eba7a6..37bd6d9b8eb9 100644
--- a/arch/alpha/kernel/sys_sio.c
+++ b/arch/alpha/kernel/sys_sio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_sio.c
  *
@@ -144,7 +145,7 @@ sio_fixup_irq_levels(unsigned int level_bits)
 	outb((level_bits >> 8) & 0xff, 0x4d1);
 }
 
-static inline int __init
+static inline int
 noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	/*
@@ -165,7 +166,7 @@ noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	 * that they use the default INTA line, if they are interrupt
 	 * driven at all).
 	 */
-	static char irq_tab[][5] __initdata = {
+	static char irq_tab[][5] = {
 		/*INT A   B   C   D */
 		{ 3,  3,  3,  3,  3}, /* idsel  6 (53c810) */ 
 		{-1, -1, -1, -1, -1}, /* idsel  7 (SIO: PCI/ISA bridge) */
@@ -183,10 +184,10 @@ noname_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return irq >= 0 ? tmp : -1;
 }
 
-static inline int __init
+static inline int
 p2k_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[][5] __initdata = {
+	static char irq_tab[][5] = {
 		/*INT A   B   C   D */
 		{ 0,  0, -1, -1, -1}, /* idsel  6 (53c810) */
 		{-1, -1, -1, -1, -1}, /* idsel  7 (SIO: PCI/ISA bridge) */
diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c
index d063b360efed..1ec638a2746a 100644
--- a/arch/alpha/kernel/sys_sx164.c
+++ b/arch/alpha/kernel/sys_sx164.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_sx164.c
  *
@@ -94,10 +95,10 @@ sx164_init_irq(void)
  *   9  32 bit PCI option slot 3
  */
 
-static int __init
+static int
 sx164_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[5][5] __initdata = {
+	static char irq_tab[5][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{ 16+ 9, 16+ 9, 16+13, 16+17, 16+21}, /* IdSel 5 slot 2 J17 */
 		{ 16+11, 16+11, 16+15, 16+19, 16+23}, /* IdSel 6 slot 0 J19 */
diff --git a/arch/alpha/kernel/sys_takara.c b/arch/alpha/kernel/sys_takara.c
index dd0f1eae3c68..e230c6864088 100644
--- a/arch/alpha/kernel/sys_takara.c
+++ b/arch/alpha/kernel/sys_takara.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_takara.c
  *
@@ -155,10 +156,10 @@ takara_init_irq(void)
  * assign it whatever the hell IRQ we like and it doesn't matter.
  */
 
-static int __init
+static int
 takara_map_irq_srm(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[15][5] __initdata = {
+	static char irq_tab[15][5] = {
 		{ 16+3, 16+3, 16+3, 16+3, 16+3},   /* slot  6 == device 3 */
 		{ 16+2, 16+2, 16+2, 16+2, 16+2},   /* slot  7 == device 2 */
 		{ 16+1, 16+1, 16+1, 16+1, 16+1},   /* slot  8 == device 1 */
@@ -210,7 +211,7 @@ takara_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return COMMON_TABLE_LOOKUP;
 }
 
-static u8 __init
+static u8
 takara_swizzle(struct pci_dev *dev, u8 *pinp)
 {
 	int slot = PCI_SLOT(dev->devfn);
diff --git a/arch/alpha/kernel/sys_titan.c b/arch/alpha/kernel/sys_titan.c
index a53cf03f49d5..c8390d8de140 100644
--- a/arch/alpha/kernel/sys_titan.c
+++ b/arch/alpha/kernel/sys_titan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/alpha/kernel/sys_titan.c
  *
diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c
index ee1874887776..8e64052811ab 100644
--- a/arch/alpha/kernel/sys_wildfire.c
+++ b/arch/alpha/kernel/sys_wildfire.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/sys_wildfire.c
  *
@@ -288,10 +289,10 @@ wildfire_device_interrupt(unsigned long vector)
  *   7	 64 bit PCI 1 option slot 7
  */
 
-static int __init
+static int
 wildfire_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	static char irq_tab[8][5] __initdata = {
+	static char irq_tab[8][5] = {
 		/*INT    INTA   INTB   INTC   INTD */
 		{ -1,    -1,    -1,    -1,    -1}, /* IdSel 0 ISA Bridge */
 		{ 36,    36,    36+1, 36+2, 36+3}, /* IdSel 1 SCSI builtin */
diff --git a/arch/alpha/kernel/systbls.S b/arch/alpha/kernel/systbls.S
index 5b4514abb234..1374e591511f 100644
--- a/arch/alpha/kernel/systbls.S
+++ b/arch/alpha/kernel/systbls.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/kernel/systbls.S
  *
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 3bfe058d75d9..0069360697ee 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/kernel/time.c
  *
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index 49d3b1e63ce5..4bd99a7b1c41 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/kernel/traps.c
  *
diff --git a/arch/alpha/kernel/vmlinux.lds.S b/arch/alpha/kernel/vmlinux.lds.S
index cebecfb76fbf..c4b5ceceab52 100644
--- a/arch/alpha/kernel/vmlinux.lds.S
+++ b/arch/alpha/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/thread_info.h>
 #include <asm/cache.h>
diff --git a/arch/alpha/lib/Makefile b/arch/alpha/lib/Makefile
index a80815960364..04f9729de57c 100644
--- a/arch/alpha/lib/Makefile
+++ b/arch/alpha/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for alpha-specific library files..
 #
diff --git a/arch/alpha/lib/callback_srm.S b/arch/alpha/lib/callback_srm.S
index 6093addc931a..b13c4a231f1b 100644
--- a/arch/alpha/lib/callback_srm.S
+++ b/arch/alpha/lib/callback_srm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	arch/alpha/lib/callback_srm.S
  */
diff --git a/arch/alpha/lib/checksum.c b/arch/alpha/lib/checksum.c
index b57f8007db14..3f35c3ed6948 100644
--- a/arch/alpha/lib/checksum.c
+++ b/arch/alpha/lib/checksum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/lib/checksum.c
  *
diff --git a/arch/alpha/lib/clear_page.S b/arch/alpha/lib/clear_page.S
index 263d7393c0e7..ce02de7b0493 100644
--- a/arch/alpha/lib/clear_page.S
+++ b/arch/alpha/lib/clear_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/clear_page.S
  *
diff --git a/arch/alpha/lib/clear_user.S b/arch/alpha/lib/clear_user.S
index 006f469fef73..db6c6ca45896 100644
--- a/arch/alpha/lib/clear_user.S
+++ b/arch/alpha/lib/clear_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/clear_user.S
  * Contributed by Richard Henderson <rth@tamu.edu>
diff --git a/arch/alpha/lib/copy_page.S b/arch/alpha/lib/copy_page.S
index 2ee0bd0508c5..5439a30c77d0 100644
--- a/arch/alpha/lib/copy_page.S
+++ b/arch/alpha/lib/copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/copy_page.S
  *
diff --git a/arch/alpha/lib/copy_user.S b/arch/alpha/lib/copy_user.S
index c277a1a4383e..32ab0344b185 100644
--- a/arch/alpha/lib/copy_user.S
+++ b/arch/alpha/lib/copy_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/copy_user.S
  *
diff --git a/arch/alpha/lib/csum_ipv6_magic.S b/arch/alpha/lib/csum_ipv6_magic.S
index e74b4544b0cc..c7b213ab01ab 100644
--- a/arch/alpha/lib/csum_ipv6_magic.S
+++ b/arch/alpha/lib/csum_ipv6_magic.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/csum_ipv6_magic.S
  * Contributed by Richard Henderson <rth@tamu.edu>
diff --git a/arch/alpha/lib/csum_partial_copy.c b/arch/alpha/lib/csum_partial_copy.c
index ab42afba1720..ddb9c2f376fa 100644
--- a/arch/alpha/lib/csum_partial_copy.c
+++ b/arch/alpha/lib/csum_partial_copy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * csum_partial_copy - do IP checksumming and copy
  *
diff --git a/arch/alpha/lib/dbg_current.S b/arch/alpha/lib/dbg_current.S
index e6d071015f9b..be6612131277 100644
--- a/arch/alpha/lib/dbg_current.S
+++ b/arch/alpha/lib/dbg_current.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/dbg_current.S
  * Contributed by Richard Henderson (rth@cygnus.com)
diff --git a/arch/alpha/lib/dbg_stackcheck.S b/arch/alpha/lib/dbg_stackcheck.S
index 78f6b924ad8f..b3b6fc94f7f3 100644
--- a/arch/alpha/lib/dbg_stackcheck.S
+++ b/arch/alpha/lib/dbg_stackcheck.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/dbg_stackcheck.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/dbg_stackkill.S b/arch/alpha/lib/dbg_stackkill.S
index c1e40a1a43d5..6d9197e52a42 100644
--- a/arch/alpha/lib/dbg_stackkill.S
+++ b/arch/alpha/lib/dbg_stackkill.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/dbg_stackkill.S
  * Contributed by Richard Henderson (rth@cygnus.com)
diff --git a/arch/alpha/lib/dec_and_lock.c b/arch/alpha/lib/dec_and_lock.c
index 4221b40167ee..a117707f57fe 100644
--- a/arch/alpha/lib/dec_and_lock.c
+++ b/arch/alpha/lib/dec_and_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/lib/dec_and_lock.c
  *
diff --git a/arch/alpha/lib/divide.S b/arch/alpha/lib/divide.S
index 1e33bd127621..2b60eb45e50b 100644
--- a/arch/alpha/lib/divide.S
+++ b/arch/alpha/lib/divide.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/divide.S
  *
diff --git a/arch/alpha/lib/ev6-clear_page.S b/arch/alpha/lib/ev6-clear_page.S
index abe99e69a194..325864c81586 100644
--- a/arch/alpha/lib/ev6-clear_page.S
+++ b/arch/alpha/lib/ev6-clear_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-clear_page.S
  *
diff --git a/arch/alpha/lib/ev6-clear_user.S b/arch/alpha/lib/ev6-clear_user.S
index e179e4757ef8..7e644f83cdf2 100644
--- a/arch/alpha/lib/ev6-clear_user.S
+++ b/arch/alpha/lib/ev6-clear_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-clear_user.S
  * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev6-copy_page.S b/arch/alpha/lib/ev6-copy_page.S
index 77935061bddb..fd7212c8dcf1 100644
--- a/arch/alpha/lib/ev6-copy_page.S
+++ b/arch/alpha/lib/ev6-copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-copy_page.S
  *
diff --git a/arch/alpha/lib/ev6-copy_user.S b/arch/alpha/lib/ev6-copy_user.S
index 954ca03ebebe..f3e433754397 100644
--- a/arch/alpha/lib/ev6-copy_user.S
+++ b/arch/alpha/lib/ev6-copy_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-copy_user.S
  *
diff --git a/arch/alpha/lib/ev6-csum_ipv6_magic.S b/arch/alpha/lib/ev6-csum_ipv6_magic.S
index de62627ac4fe..9a73f90700a1 100644
--- a/arch/alpha/lib/ev6-csum_ipv6_magic.S
+++ b/arch/alpha/lib/ev6-csum_ipv6_magic.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-csum_ipv6_magic.S
  * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev6-divide.S b/arch/alpha/lib/ev6-divide.S
index d18dc0e96e3d..137ff1a07356 100644
--- a/arch/alpha/lib/ev6-divide.S
+++ b/arch/alpha/lib/ev6-divide.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-divide.S
  *
diff --git a/arch/alpha/lib/ev6-memchr.S b/arch/alpha/lib/ev6-memchr.S
index 419adc53ccb4..56bf9e14eeee 100644
--- a/arch/alpha/lib/ev6-memchr.S
+++ b/arch/alpha/lib/ev6-memchr.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-memchr.S
  *
diff --git a/arch/alpha/lib/ev6-memcpy.S b/arch/alpha/lib/ev6-memcpy.S
index b19798b2efc0..ffbd056b6eb2 100644
--- a/arch/alpha/lib/ev6-memcpy.S
+++ b/arch/alpha/lib/ev6-memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-memcpy.S
  * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev6-memset.S b/arch/alpha/lib/ev6-memset.S
index fed21c6893e8..316a99aa9efe 100644
--- a/arch/alpha/lib/ev6-memset.S
+++ b/arch/alpha/lib/ev6-memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-memset.S
  *
diff --git a/arch/alpha/lib/ev6-stxcpy.S b/arch/alpha/lib/ev6-stxcpy.S
index 4643ff2ffc8d..65f5f7310d80 100644
--- a/arch/alpha/lib/ev6-stxcpy.S
+++ b/arch/alpha/lib/ev6-stxcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-stxcpy.S
  * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev6-stxncpy.S b/arch/alpha/lib/ev6-stxncpy.S
index 1aa6e97e04b5..76da205282ee 100644
--- a/arch/alpha/lib/ev6-stxncpy.S
+++ b/arch/alpha/lib/ev6-stxncpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev6-stxncpy.S
  * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
diff --git a/arch/alpha/lib/ev67-strcat.S b/arch/alpha/lib/ev67-strcat.S
index b69f60419be1..ec3096a9e8d4 100644
--- a/arch/alpha/lib/ev67-strcat.S
+++ b/arch/alpha/lib/ev67-strcat.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev67-strcat.S
  * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev67-strchr.S b/arch/alpha/lib/ev67-strchr.S
index ea8f2f35db9c..fbf89e0b6dc3 100644
--- a/arch/alpha/lib/ev67-strchr.S
+++ b/arch/alpha/lib/ev67-strchr.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev67-strchr.S
  * 21264 version contributed by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev67-strlen.S b/arch/alpha/lib/ev67-strlen.S
index 736fd41884a8..b73106ffbbc7 100644
--- a/arch/alpha/lib/ev67-strlen.S
+++ b/arch/alpha/lib/ev67-strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev67-strlen.S
  * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/ev67-strncat.S b/arch/alpha/lib/ev67-strncat.S
index cd35cbade73a..ceb0ca528789 100644
--- a/arch/alpha/lib/ev67-strncat.S
+++ b/arch/alpha/lib/ev67-strncat.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev67-strncat.S
  * 21264 version contributed by Rick Gorton <rick.gorton@api-networks.com>
diff --git a/arch/alpha/lib/ev67-strrchr.S b/arch/alpha/lib/ev67-strrchr.S
index 747455f0328c..7f80e398530f 100644
--- a/arch/alpha/lib/ev67-strrchr.S
+++ b/arch/alpha/lib/ev67-strrchr.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/ev67-strrchr.S
  * 21264 version by Rick Gorton <rick.gorton@alpha-processor.com>
diff --git a/arch/alpha/lib/fls.c b/arch/alpha/lib/fls.c
index ddd048c0d825..02e156776645 100644
--- a/arch/alpha/lib/fls.c
+++ b/arch/alpha/lib/fls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* 
  * arch/alpha/lib/fls.c
  */
diff --git a/arch/alpha/lib/fpreg.c b/arch/alpha/lib/fpreg.c
index 4aa6dbfa14ee..34fea465645b 100644
--- a/arch/alpha/lib/fpreg.c
+++ b/arch/alpha/lib/fpreg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/alpha/lib/fpreg.c
  *
diff --git a/arch/alpha/lib/memcpy.c b/arch/alpha/lib/memcpy.c
index 57d9291ad172..cbac3dc6d963 100644
--- a/arch/alpha/lib/memcpy.c
+++ b/arch/alpha/lib/memcpy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/lib/memcpy.c
  *
diff --git a/arch/alpha/lib/memmove.S b/arch/alpha/lib/memmove.S
index 6872c85cb5e5..42d1922d0edf 100644
--- a/arch/alpha/lib/memmove.S
+++ b/arch/alpha/lib/memmove.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/memmove.S
  *
diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S
index f824969e9e77..00393e30df25 100644
--- a/arch/alpha/lib/memset.S
+++ b/arch/alpha/lib/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/arch/alpha/lib/memset.S
  *
diff --git a/arch/alpha/lib/srm_printk.c b/arch/alpha/lib/srm_printk.c
index 31b53c49435e..6276eed76276 100644
--- a/arch/alpha/lib/srm_printk.c
+++ b/arch/alpha/lib/srm_printk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	arch/alpha/lib/srm_printk.c
  */
diff --git a/arch/alpha/lib/srm_puts.c b/arch/alpha/lib/srm_puts.c
index 7b60a6f75a78..df7991f6fc69 100644
--- a/arch/alpha/lib/srm_puts.c
+++ b/arch/alpha/lib/srm_puts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	arch/alpha/lib/srm_puts.c
  */
diff --git a/arch/alpha/lib/stacktrace.c b/arch/alpha/lib/stacktrace.c
index 5e832161e6d2..62454a7810e2 100644
--- a/arch/alpha/lib/stacktrace.c
+++ b/arch/alpha/lib/stacktrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 
 typedef unsigned int instr;
diff --git a/arch/alpha/lib/strcat.S b/arch/alpha/lib/strcat.S
index 249837b03d4b..055877dccd27 100644
--- a/arch/alpha/lib/strcat.S
+++ b/arch/alpha/lib/strcat.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/strcat.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/strchr.S b/arch/alpha/lib/strchr.S
index 7412a173ea39..17871dd00280 100644
--- a/arch/alpha/lib/strchr.S
+++ b/arch/alpha/lib/strchr.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/strchr.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/strcpy.S b/arch/alpha/lib/strcpy.S
index 98deae1e4d08..cb74ad23a90d 100644
--- a/arch/alpha/lib/strcpy.S
+++ b/arch/alpha/lib/strcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/strcpy.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/strlen.S b/arch/alpha/lib/strlen.S
index 79c416f71bac..dd882fe4d7e3 100644
--- a/arch/alpha/lib/strlen.S
+++ b/arch/alpha/lib/strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * strlen.S (c) 1995 David Mosberger (davidm@cs.arizona.edu)
  *
diff --git a/arch/alpha/lib/strncat.S b/arch/alpha/lib/strncat.S
index 6c29ea60869a..522fee3e26ac 100644
--- a/arch/alpha/lib/strncat.S
+++ b/arch/alpha/lib/strncat.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/strncat.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/strncpy.S b/arch/alpha/lib/strncpy.S
index e102cf1567dd..cc57fad8b7ca 100644
--- a/arch/alpha/lib/strncpy.S
+++ b/arch/alpha/lib/strncpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/strncpy.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/strrchr.S b/arch/alpha/lib/strrchr.S
index 4bc6cb4b9812..7650ba99b7e2 100644
--- a/arch/alpha/lib/strrchr.S
+++ b/arch/alpha/lib/strrchr.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/strrchr.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/stxcpy.S b/arch/alpha/lib/stxcpy.S
index 2a8d51bfc05d..58723b0a36d4 100644
--- a/arch/alpha/lib/stxcpy.S
+++ b/arch/alpha/lib/stxcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/stxcpy.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/stxncpy.S b/arch/alpha/lib/stxncpy.S
index 3dece25283a3..011d9091c6e1 100644
--- a/arch/alpha/lib/stxncpy.S
+++ b/arch/alpha/lib/stxncpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/alpha/lib/stxncpy.S
  * Contributed by Richard Henderson (rth@tamu.edu)
diff --git a/arch/alpha/lib/udelay.c b/arch/alpha/lib/udelay.c
index f2d81ff38aa6..873648263430 100644
--- a/arch/alpha/lib/udelay.c
+++ b/arch/alpha/lib/udelay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 1993, 2000 Linus Torvalds
  *
diff --git a/arch/alpha/math-emu/sfp-util.h b/arch/alpha/math-emu/sfp-util.h
index f53707f77455..ae30f3417522 100644
--- a/arch/alpha/math-emu/sfp-util.h
+++ b/arch/alpha/math-emu/sfp-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/types.h>
diff --git a/arch/alpha/mm/fault.c b/arch/alpha/mm/fault.c
index c25e8827e7cd..cd3c572ee912 100644
--- a/arch/alpha/mm/fault.c
+++ b/arch/alpha/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/mm/fault.c
  *
diff --git a/arch/alpha/mm/init.c b/arch/alpha/mm/init.c
index 0542e973c73d..9d74520298ab 100644
--- a/arch/alpha/mm/init.c
+++ b/arch/alpha/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/mm/init.c
  *
diff --git a/arch/alpha/mm/numa.c b/arch/alpha/mm/numa.c
index d543d71c28b4..a9e86475f169 100644
--- a/arch/alpha/mm/numa.c
+++ b/arch/alpha/mm/numa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/alpha/mm/numa.c
  *
diff --git a/arch/alpha/oprofile/Makefile b/arch/alpha/oprofile/Makefile
index 3473de751b03..79f32820a42f 100644
--- a/arch/alpha/oprofile/Makefile
+++ b/arch/alpha/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Werror -Wno-sign-compare
 
 obj-$(CONFIG_OPROFILE) += oprofile.o
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index a598641eed98..c84e67fdea09 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -24,7 +24,7 @@ config ARC
 	select GENERIC_SMP_IDLE_THREAD
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
-	select HAVE_FUTEX_CMPXCHG
+	select HAVE_FUTEX_CMPXCHG if FUTEX
 	select HAVE_IOREMAP_PROT
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
diff --git a/arch/arc/Kconfig.debug b/arch/arc/Kconfig.debug
index ff6a4b5ce927..03da1a6b3072 100644
--- a/arch/arc/Kconfig.debug
+++ b/arch/arc/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 3a4b52b7e09d..d37f49d6a27f 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -6,8 +6,6 @@
 # published by the Free Software Foundation.
 #
 
-UTS_MACHINE := arc
-
 ifeq ($(CROSS_COMPILE),)
 ifndef CONFIG_CPU_BIG_ENDIAN
 CROSS_COMPILE := arc-linux-
diff --git a/arch/arc/boot/Makefile b/arch/arc/boot/Makefile
index f94cf151e06a..538b92f4dd25 100644
--- a/arch/arc/boot/Makefile
+++ b/arch/arc/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 targets := vmlinux.bin vmlinux.bin.gz uImage
 
 # uImage build relies on mkimage being availble on your host for ARC target
diff --git a/arch/arc/boot/dts/Makefile b/arch/arc/boot/dts/Makefile
index a09f11b71e66..83c9e076ef63 100644
--- a/arch/arc/boot/dts/Makefile
+++ b/arch/arc/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Built-in dtb
 builtindtb-y		:= nsim_700
 
diff --git a/arch/arc/boot/dts/axs10x_mb.dtsi b/arch/arc/boot/dts/axs10x_mb.dtsi
index 2367a67c5f10..e114000a84f5 100644
--- a/arch/arc/boot/dts/axs10x_mb.dtsi
+++ b/arch/arc/boot/dts/axs10x_mb.dtsi
@@ -44,7 +44,14 @@
 
 			mmcclk: mmcclk {
 				compatible = "fixed-clock";
-				clock-frequency = <50000000>;
+				/*
+				 * DW sdio controller has external ciu clock divider
+				 * controlled via register in SDIO IP. It divides
+				 * sdio_ref_clk (which comes from CGU) by 16 for
+				 * default. So default mmcclk clock (which comes
+				 * to sdk_in) is 25000000 Hz.
+				 */
+				clock-frequency = <25000000>;
 				#clock-cells = <0>;
 			};
 
diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 229d13adbce4..8f627c200d60 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -12,6 +12,7 @@
 /dts-v1/;
 
 #include <dt-bindings/net/ti-dp83867.h>
+#include <dt-bindings/reset/snps,hsdk-reset.h>
 
 / {
 	model = "snps,hsdk";
@@ -57,10 +58,10 @@
 		};
 	};
 
-	core_clk: core-clk {
+	input_clk: input-clk {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
-		clock-frequency = <500000000>;
+		clock-frequency = <33333333>;
 	};
 
 	cpu_intc: cpu-interrupt-controller {
@@ -102,6 +103,19 @@
 
 		ranges = <0x00000000 0xf0000000 0x10000000>;
 
+		cgu_rst: reset-controller@8a0 {
+			compatible = "snps,hsdk-reset";
+			#reset-cells = <1>;
+			reg = <0x8A0 0x4>, <0xFF0 0x4>;
+		};
+
+		core_clk: core-clk@0 {
+			compatible = "snps,hsdk-core-pll-clock";
+			reg = <0x00 0x10>, <0x14B8 0x4>;
+			#clock-cells = <0>;
+			clocks = <&input_clk>;
+		};
+
 		serial: serial@5000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x5000 0x100>;
@@ -120,7 +134,18 @@
 
 		mmcclk_ciu: mmcclk-ciu {
 			compatible = "fixed-clock";
-			clock-frequency = <100000000>;
+			/*
+			 * DW sdio controller has external ciu clock divider
+			 * controlled via register in SDIO IP. Due to its
+			 * unexpected default value (it should divide by 1
+			 * but it divides by 8) SDIO IP uses wrong clock and
+			 * works unstable (see STAR 9001204800)
+			 * We switched to the minimum possible value of the
+			 * divisor (div-by-2) in HSDK platform code.
+			 * So add temporary fix and change clock frequency
+			 * to 50000000 Hz until we fix dw sdio driver itself.
+			 */
+			clock-frequency = <50000000>;
 			#clock-cells = <0>;
 		};
 
@@ -141,6 +166,8 @@
 			clocks = <&gmacclk>;
 			clock-names = "stmmaceth";
 			phy-handle = <&phy0>;
+			resets = <&cgu_rst HSDK_ETH_RESET>;
+			reset-names = "stmmaceth";
 
 			mdio {
 				#address-cells = <1>;
diff --git a/arch/arc/configs/axs101_defconfig b/arch/arc/configs/axs101_defconfig
index 6980b966a364..ec7c849a5c8e 100644
--- a/arch/arc/configs/axs101_defconfig
+++ b/arch/arc/configs/axs101_defconfig
@@ -105,7 +105,7 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/axs103_defconfig b/arch/arc/configs/axs103_defconfig
index 2233f5777a71..63d3cf69e0b0 100644
--- a/arch/arc/configs/axs103_defconfig
+++ b/arch/arc/configs/axs103_defconfig
@@ -104,7 +104,7 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/axs103_smp_defconfig b/arch/arc/configs/axs103_smp_defconfig
index 30a3d4cf53d2..f613ecac14a7 100644
--- a/arch/arc/configs/axs103_smp_defconfig
+++ b/arch/arc/configs/axs103_smp_defconfig
@@ -107,7 +107,7 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/haps_hs_smp_defconfig b/arch/arc/configs/haps_hs_smp_defconfig
index 821a2e562f3f..3507be2af6fe 100644
--- a/arch/arc/configs/haps_hs_smp_defconfig
+++ b/arch/arc/configs/haps_hs_smp_defconfig
@@ -84,5 +84,5 @@ CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
index 9a3fcf446388..7b8f8faf8a24 100644
--- a/arch/arc/configs/hsdk_defconfig
+++ b/arch/arc/configs/hsdk_defconfig
@@ -72,7 +72,7 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/vdk_hs38_defconfig b/arch/arc/configs/vdk_hs38_defconfig
index c0d6a010751a..4fcf4f2503f6 100644
--- a/arch/arc/configs/vdk_hs38_defconfig
+++ b/arch/arc/configs/vdk_hs38_defconfig
@@ -94,7 +94,7 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_DEBUG_SHIRQ=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/configs/vdk_hs38_smp_defconfig b/arch/arc/configs/vdk_hs38_smp_defconfig
index 5c0971787acf..7b71464f6c2f 100644
--- a/arch/arc/configs/vdk_hs38_smp_defconfig
+++ b/arch/arc/configs/vdk_hs38_smp_defconfig
@@ -98,7 +98,7 @@ CONFIG_NLS_ISO8859_1=y
 # CONFIG_ENABLE_MUST_CHECK is not set
 CONFIG_STRIP_ASM_SYMS=y
 CONFIG_DEBUG_SHIRQ=y
-CONFIG_LOCKUP_DETECTOR=y
+CONFIG_SOFTLOCKUP_DETECTOR=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=10
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index 353dae386b2f..cd8398daccee 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += bugs.h
 generic-y += clkdev.h
 generic-y += device.h
diff --git a/arch/arc/include/asm/arcregs.h b/arch/arc/include/asm/arcregs.h
index ba8e802dba80..b1c56d35f2a9 100644
--- a/arch/arc/include/asm/arcregs.h
+++ b/arch/arc/include/asm/arcregs.h
@@ -98,6 +98,7 @@
 
 /* Auxiliary registers */
 #define AUX_IDENTITY		4
+#define AUX_EXEC_CTRL		8
 #define AUX_INTR_VEC_BASE	0x25
 #define AUX_VOL			0x5e
 
@@ -135,12 +136,12 @@ struct bcr_identity {
 #endif
 };
 
-struct bcr_isa {
+struct bcr_isa_arcv2 {
 #ifdef CONFIG_CPU_BIG_ENDIAN
 	unsigned int div_rem:4, pad2:4, ldd:1, unalign:1, atomic:1, be:1,
-		     pad1:11, atomic1:1, ver:8;
+		     pad1:12, ver:8;
 #else
-	unsigned int ver:8, atomic1:1, pad1:11, be:1, atomic:1, unalign:1,
+	unsigned int ver:8, pad1:12, be:1, atomic:1, unalign:1,
 		     ldd:1, pad2:4, div_rem:4;
 #endif
 };
@@ -263,13 +264,13 @@ struct cpuinfo_arc {
 	struct cpuinfo_arc_mmu mmu;
 	struct cpuinfo_arc_bpu bpu;
 	struct bcr_identity core;
-	struct bcr_isa isa;
+	struct bcr_isa_arcv2 isa;
 	const char *details, *name;
 	unsigned int vec_base;
 	struct cpuinfo_arc_ccm iccm, dccm;
 	struct {
 		unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,
-			     fpu_sp:1, fpu_dp:1, pad2:6,
+			     fpu_sp:1, fpu_dp:1, dual_iss_enb:1, dual_iss_exist:1, pad2:4,
 			     debug:1, ap:1, smart:1, rtt:1, pad3:4,
 			     timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;
 	} extn;
diff --git a/arch/arc/include/asm/entry-arcv2.h b/arch/arc/include/asm/entry-arcv2.h
index ac85380d14a4..257a68f3c2fe 100644
--- a/arch/arc/include/asm/entry-arcv2.h
+++ b/arch/arc/include/asm/entry-arcv2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __ASM_ARC_ENTRY_ARCV2_H
 #define __ASM_ARC_ENTRY_ARCV2_H
diff --git a/arch/arc/include/asm/fb.h b/arch/arc/include/asm/fb.h
index bd3f68c9ddfc..dc2e303cdbbb 100644
--- a/arch/arc/include/asm/fb.h
+++ b/arch/arc/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/arc/include/asm/processor.h b/arch/arc/include/asm/processor.h
index d400a2161935..8ee41e988169 100644
--- a/arch/arc/include/asm/processor.h
+++ b/arch/arc/include/asm/processor.h
@@ -78,9 +78,6 @@ struct task_struct;
 
 #endif
 
-#define copy_segments(tsk, mm)      do { } while (0)
-#define release_segments(mm)        do { } while (0)
-
 #define KSTK_EIP(tsk)   (task_pt_regs(tsk)->ret)
 #define KSTK_ESP(tsk)   (task_pt_regs(tsk)->sp)
 
diff --git a/arch/arc/include/asm/spinlock.h b/arch/arc/include/asm/spinlock.h
index 47efc8451b70..2ba04a7db621 100644
--- a/arch/arc/include/asm/spinlock.h
+++ b/arch/arc/include/asm/spinlock.h
@@ -14,7 +14,6 @@
 #include <asm/barrier.h>
 
 #define arch_spin_is_locked(x)	((x)->slock != __ARCH_SPIN_LOCK_UNLOCKED__)
-#define arch_spin_lock_flags(lock, flags)	arch_spin_lock(lock)
 
 #ifdef CONFIG_ARC_HAS_LLSC
 
@@ -410,14 +409,4 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 
 #endif
 
-#define arch_read_can_lock(x)	((x)->counter > 0)
-#define arch_write_can_lock(x)	((x)->counter == __ARCH_RW_LOCK_UNLOCKED__)
-
-#define arch_read_lock_flags(lock, flags)	arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags)	arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arc/include/uapi/asm/byteorder.h b/arch/arc/include/uapi/asm/byteorder.h
index ea5ca444c7e3..5540111531c7 100644
--- a/arch/arc/include/uapi/asm/byteorder.h
+++ b/arch/arc/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/cachectl.h b/arch/arc/include/uapi/asm/cachectl.h
index 51c73f0255b3..0e4f2affc7e9 100644
--- a/arch/arc/include/uapi/asm/cachectl.h
+++ b/arch/arc/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/elf.h b/arch/arc/include/uapi/asm/elf.h
index 06d95e611616..3c1dae4e5aad 100644
--- a/arch/arc/include/uapi/asm/elf.h
+++ b/arch/arc/include/uapi/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/page.h b/arch/arc/include/uapi/asm/page.h
index 059aff38f10a..2a97e2718a21 100644
--- a/arch/arc/include/uapi/asm/page.h
+++ b/arch/arc/include/uapi/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/ptrace.h b/arch/arc/include/uapi/asm/ptrace.h
index dd206e6b482c..2a6eff57f6dd 100644
--- a/arch/arc/include/uapi/asm/ptrace.h
+++ b/arch/arc/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/sigcontext.h b/arch/arc/include/uapi/asm/sigcontext.h
index 9678a11fc158..95f8a4380e11 100644
--- a/arch/arc/include/uapi/asm/sigcontext.h
+++ b/arch/arc/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/signal.h b/arch/arc/include/uapi/asm/signal.h
index fad62f7f42d6..ba3143a1b375 100644
--- a/arch/arc/include/uapi/asm/signal.h
+++ b/arch/arc/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/swab.h b/arch/arc/include/uapi/asm/swab.h
index 71f3918b0fc3..02109cd48ee1 100644
--- a/arch/arc/include/uapi/asm/swab.h
+++ b/arch/arc/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/include/uapi/asm/unistd.h b/arch/arc/include/uapi/asm/unistd.h
index 9a34136d84b2..517178b1daef 100644
--- a/arch/arc/include/uapi/asm/unistd.h
+++ b/arch/arc/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index c4ffb441716c..fb83844daeea 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -51,6 +51,7 @@ static const struct id_to_str arc_cpu_rel[] = {
 	{ 0x51, "R2.0" },
 	{ 0x52, "R2.1" },
 	{ 0x53, "R3.0" },
+	{ 0x54, "R4.0" },
 #endif
 	{ 0x00, NULL   }
 };
@@ -62,6 +63,7 @@ static const struct id_to_str arc_cpu_nm[] = {
 #else
 	{ 0x40, "ARC EM"  },
 	{ 0x50, "ARC HS38"  },
+	{ 0x54, "ARC HS48"  },
 #endif
 	{ 0x00, "Unknown"   }
 };
@@ -119,11 +121,11 @@ static void read_arc_build_cfg_regs(void)
 	struct bcr_generic bcr;
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
 	const struct id_to_str *tbl;
+	struct bcr_isa_arcv2 isa;
 
 	FIX_PTR(cpu);
 
 	READ_BCR(AUX_IDENTITY, cpu->core);
-	READ_BCR(ARC_REG_ISA_CFG_BCR, cpu->isa);
 
 	for (tbl = &arc_cpu_rel[0]; tbl->id != 0; tbl++) {
 		if (cpu->core.family == tbl->id) {
@@ -133,7 +135,7 @@ static void read_arc_build_cfg_regs(void)
 	}
 
 	for (tbl = &arc_cpu_nm[0]; tbl->id != 0; tbl++) {
-		if ((cpu->core.family & 0xF0) == tbl->id)
+		if ((cpu->core.family & 0xF4) == tbl->id)
 			break;
 	}
 	cpu->name = tbl->str;
@@ -192,6 +194,14 @@ static void read_arc_build_cfg_regs(void)
 		cpu->bpu.full = bpu.ft;
 		cpu->bpu.num_cache = 256 << bpu.bce;
 		cpu->bpu.num_pred = 2048 << bpu.pte;
+
+		if (cpu->core.family >= 0x54) {
+			unsigned int exec_ctrl;
+
+			READ_BCR(AUX_EXEC_CTRL, exec_ctrl);
+			cpu->extn.dual_iss_exist = 1;
+			cpu->extn.dual_iss_enb = exec_ctrl & 1;
+		}
 	}
 
 	READ_BCR(ARC_REG_AP_BCR, bcr);
@@ -205,18 +215,25 @@ static void read_arc_build_cfg_regs(void)
 
 	cpu->extn.debug = cpu->extn.ap | cpu->extn.smart | cpu->extn.rtt;
 
+	READ_BCR(ARC_REG_ISA_CFG_BCR, isa);
+
 	/* some hacks for lack of feature BCR info in old ARC700 cores */
 	if (is_isa_arcompact()) {
-		if (!cpu->isa.ver)	/* ISA BCR absent, use Kconfig info */
+		if (!isa.ver)	/* ISA BCR absent, use Kconfig info */
 			cpu->isa.atomic = IS_ENABLED(CONFIG_ARC_HAS_LLSC);
-		else
-			cpu->isa.atomic = cpu->isa.atomic1;
+		else {
+			/* ARC700_BUILD only has 2 bits of isa info */
+			struct bcr_generic bcr = *(struct bcr_generic *)&isa;
+			cpu->isa.atomic = bcr.info & 1;
+		}
 
 		cpu->isa.be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN);
 
 		 /* there's no direct way to distinguish 750 vs. 770 */
 		if (unlikely(cpu->core.family < 0x34 || cpu->mmu.ver < 3))
 			cpu->name = "ARC750";
+	} else {
+		cpu->isa = isa;
 	}
 }
 
@@ -232,10 +249,11 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
 		       "\nIDENTITY\t: ARCVER [%#02x] ARCNUM [%#02x] CHIPID [%#4x]\n",
 		       core->family, core->cpu_id, core->chip_id);
 
-	n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s\n",
+	n += scnprintf(buf + n, len - n, "processor [%d]\t: %s %s (%s ISA) %s%s%s\n",
 		       cpu_id, cpu->name, cpu->details,
 		       is_isa_arcompact() ? "ARCompact" : "ARCv2",
-		       IS_AVAIL1(cpu->isa.be, "[Big-Endian]"));
+		       IS_AVAIL1(cpu->isa.be, "[Big-Endian]"),
+		       IS_AVAIL3(cpu->extn.dual_iss_exist, cpu->extn.dual_iss_enb, " Dual-Issue"));
 
 	n += scnprintf(buf + n, len - n, "Timers\t\t: %s%s%s%s%s%s\nISA Extn\t: ",
 		       IS_AVAIL1(cpu->extn.timer0, "Timer0 "),
@@ -510,7 +528,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 		goto done;
 	}
 
-	str = (char *)__get_free_page(GFP_TEMPORARY);
+	str = (char *)__get_free_page(GFP_KERNEL);
 	if (!str)
 		goto done;
 
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index f46267153ec2..efe8b4200a67 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -23,6 +23,8 @@
 #include <linux/cpumask.h>
 #include <linux/reboot.h>
 #include <linux/irqdomain.h>
+#include <linux/export.h>
+
 #include <asm/processor.h>
 #include <asm/setup.h>
 #include <asm/mach_desc.h>
@@ -30,6 +32,9 @@
 #ifndef CONFIG_ARC_HAS_LLSC
 arch_spinlock_t smp_atomic_ops_lock = __ARCH_SPIN_LOCK_UNLOCKED;
 arch_spinlock_t smp_bitops_lock = __ARCH_SPIN_LOCK_UNLOCKED;
+
+EXPORT_SYMBOL_GPL(smp_atomic_ops_lock);
+EXPORT_SYMBOL_GPL(smp_bitops_lock);
 #endif
 
 struct plat_smp_ops  __weak plat_smp_ops;
@@ -245,7 +250,7 @@ static void ipi_send_msg_one(int cpu, enum ipi_msg_type msg)
 	 * and read back old value
 	 */
 	do {
-		new = old = ACCESS_ONCE(*ipi_data_ptr);
+		new = old = READ_ONCE(*ipi_data_ptr);
 		new |= 1U << msg;
 	} while (cmpxchg(ipi_data_ptr, old, new) != old);
 
diff --git a/arch/arc/kernel/sys.c b/arch/arc/kernel/sys.c
index 9d6c1ca26af6..fddecc76efb7 100644
--- a/arch/arc/kernel/sys.c
+++ b/arch/arc/kernel/sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/syscalls.h>
 #include <linux/signal.h>
diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c
index 7e94476f3994..7d8c1d6c2f60 100644
--- a/arch/arc/kernel/troubleshoot.c
+++ b/arch/arc/kernel/troubleshoot.c
@@ -178,7 +178,7 @@ void show_regs(struct pt_regs *regs)
 	struct callee_regs *cregs;
 	char *buf;
 
-	buf = (char *)__get_free_page(GFP_TEMPORARY);
+	buf = (char *)__get_free_page(GFP_KERNEL);
 	if (!buf)
 		return;
 
diff --git a/arch/arc/oprofile/Makefile b/arch/arc/oprofile/Makefile
index ce417a6e70b8..698367bb41d0 100644
--- a/arch/arc/oprofile/Makefile
+++ b/arch/arc/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/arc/plat-axs10x/axs10x.c b/arch/arc/plat-axs10x/axs10x.c
index f1ac6790da5f..cf14ebc36916 100644
--- a/arch/arc/plat-axs10x/axs10x.c
+++ b/arch/arc/plat-axs10x/axs10x.c
@@ -111,6 +111,13 @@ static void __init axs10x_early_init(void)
 
 	axs10x_enable_gpio_intc_wire();
 
+	/*
+	 * Reset ethernet IP core.
+	 * TODO: get rid of this quirk after axs10x reset driver (or simple
+	 * reset driver) will be available in upstream.
+	 */
+	iowrite32((1 << 5), (void __iomem *) CREG_MB_SW_RESET);
+
 	scnprintf(mb, 32, "MainBoard v%d", mb_rev);
 	axs10x_print_board_ver(CREG_MB_VER, mb);
 }
diff --git a/arch/arc/plat-eznps/Kconfig b/arch/arc/plat-eznps/Kconfig
index e151e2067886..8eff057efcae 100644
--- a/arch/arc/plat-eznps/Kconfig
+++ b/arch/arc/plat-eznps/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
diff --git a/arch/arc/plat-hsdk/Kconfig b/arch/arc/plat-hsdk/Kconfig
index 5a6ed5afb009..19ab3cf98f0f 100644
--- a/arch/arc/plat-hsdk/Kconfig
+++ b/arch/arc/plat-hsdk/Kconfig
@@ -6,4 +6,6 @@
 #
 
 menuconfig ARC_SOC_HSDK
-       bool "ARC HS Development Kit SOC"
+	bool "ARC HS Development Kit SOC"
+	select CLK_HSDK
+	select RESET_HSDK
diff --git a/arch/arc/plat-hsdk/platform.c b/arch/arc/plat-hsdk/platform.c
index a2e7fd17e36d..fd0ae5e38639 100644
--- a/arch/arc/plat-hsdk/platform.c
+++ b/arch/arc/plat-hsdk/platform.c
@@ -38,6 +38,46 @@ static void __init hsdk_init_per_cpu(unsigned int cpu)
 #define CREG_PAE		(CREG_BASE + 0x180)
 #define CREG_PAE_UPDATE		(CREG_BASE + 0x194)
 
+#define CREG_CORE_IF_CLK_DIV	(CREG_BASE + 0x4B8)
+#define CREG_CORE_IF_CLK_DIV_2	0x1
+#define CGU_BASE		ARC_PERIPHERAL_BASE
+#define CGU_PLL_STATUS		(ARC_PERIPHERAL_BASE + 0x4)
+#define CGU_PLL_CTRL		(ARC_PERIPHERAL_BASE + 0x0)
+#define CGU_PLL_STATUS_LOCK	BIT(0)
+#define CGU_PLL_STATUS_ERR	BIT(1)
+#define CGU_PLL_CTRL_1GHZ	0x3A10
+#define HSDK_PLL_LOCK_TIMEOUT	500
+
+#define HSDK_PLL_LOCKED() \
+	!!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_LOCK)
+
+#define HSDK_PLL_ERR() \
+	!!(ioread32((void __iomem *) CGU_PLL_STATUS) & CGU_PLL_STATUS_ERR)
+
+static void __init hsdk_set_cpu_freq_1ghz(void)
+{
+	u32 timeout = HSDK_PLL_LOCK_TIMEOUT;
+
+	/*
+	 * As we set cpu clock which exceeds 500MHz, the divider for the interface
+	 * clock must be programmed to div-by-2.
+	 */
+	iowrite32(CREG_CORE_IF_CLK_DIV_2, (void __iomem *) CREG_CORE_IF_CLK_DIV);
+
+	/* Set cpu clock to 1GHz */
+	iowrite32(CGU_PLL_CTRL_1GHZ, (void __iomem *) CGU_PLL_CTRL);
+
+	while (!HSDK_PLL_LOCKED() && timeout--)
+		cpu_relax();
+
+	if (!HSDK_PLL_LOCKED() || HSDK_PLL_ERR())
+		pr_err("Failed to setup CPU frequency to 1GHz!");
+}
+
+#define SDIO_BASE		(ARC_PERIPHERAL_BASE + 0xA000)
+#define SDIO_UHS_REG_EXT	(SDIO_BASE + 0x108)
+#define SDIO_UHS_REG_EXT_DIV_2	(2 << 30)
+
 static void __init hsdk_init_early(void)
 {
 	/*
@@ -52,6 +92,18 @@ static void __init hsdk_init_early(void)
 
 	/* Really apply settings made above */
 	writel(1, (void __iomem *) CREG_PAE_UPDATE);
+
+	/*
+	 * Switch SDIO external ciu clock divider from default div-by-8 to
+	 * minimum possible div-by-2.
+	 */
+	iowrite32(SDIO_UHS_REG_EXT_DIV_2, (void __iomem *) SDIO_UHS_REG_EXT);
+
+	/*
+	 * Setup CPU frequency to 1GHz.
+	 * TODO: remove it after smart hsdk pll driver will be introduced.
+	 */
+	hsdk_set_cpu_freq_1ghz();
 }
 
 static const char *hsdk_compat[] __initconst = {
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 7888c9803eb0..d1346a160760 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARM
 	bool
 	default y
diff --git a/arch/arm/Kconfig-nommu b/arch/arm/Kconfig-nommu
index b7576349528c..22f34c423be6 100644
--- a/arch/arm/Kconfig-nommu
+++ b/arch/arm/Kconfig-nommu
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Kconfig for uClinux(non-paged MM) depend configurations
 # Hyok S. Choi <hyok.choi@samsung.com>
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 6dcea8e8e941..954ba8b81052 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 47d3a1ab08d2..36ae4454554c 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -44,10 +44,12 @@ endif
 
 ifeq ($(CONFIG_CPU_BIG_ENDIAN),y)
 KBUILD_CPPFLAGS	+= -mbig-endian
+CHECKFLAGS	+= -D__ARMEB__
 AS		+= -EB
 LD		+= -EB
 else
 KBUILD_CPPFLAGS	+= -mlittle-endian
+CHECKFLAGS	+= -D__ARMEL__
 AS		+= -EL
 LD		+= -EL
 endif
@@ -131,7 +133,7 @@ endif
 KBUILD_CFLAGS	+=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
 KBUILD_AFLAGS	+=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 
-CHECKFLAGS	+= -D__arm__
+CHECKFLAGS	+= -D__arm__ -m32
 
 #Default value
 head-y		:= arch/arm/kernel/head$(MMUEXT).o
diff --git a/arch/arm/boot/bootp/Makefile b/arch/arm/boot/bootp/Makefile
index 5e4acd253b30..83e1a076a5d6 100644
--- a/arch/arm/boot/bootp/Makefile
+++ b/arch/arm/boot/bootp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/arm/boot/bootp/Makefile
 #
diff --git a/arch/arm/boot/bootp/initrd.S b/arch/arm/boot/bootp/initrd.S
index d81ea183785c..dd3d04971c42 100644
--- a/arch/arm/boot/bootp/initrd.S
+++ b/arch/arm/boot/bootp/initrd.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.type	initrd_start,#object
 	.globl	initrd_start
 initrd_start:
diff --git a/arch/arm/boot/bootp/kernel.S b/arch/arm/boot/bootp/kernel.S
index b87a25c7ef88..dc6236c173d2 100644
--- a/arch/arm/boot/bootp/kernel.S
+++ b/arch/arm/boot/bootp/kernel.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.globl	kernel_start
 kernel_start:
 	.incbin	"arch/arm/boot/zImage"
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index d50430c40045..a5889238fc9f 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/arm/boot/compressed/Makefile
 #
diff --git a/arch/arm/boot/compressed/atags_to_fdt.c b/arch/arm/boot/compressed/atags_to_fdt.c
index 9448aa0c6686..41fa7316c52b 100644
--- a/arch/arm/boot/compressed/atags_to_fdt.c
+++ b/arch/arm/boot/compressed/atags_to_fdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/setup.h>
 #include <libfdt.h>
 
diff --git a/arch/arm/boot/compressed/big-endian.S b/arch/arm/boot/compressed/big-endian.S
index 25ab26f1c6f0..88e2a88d324b 100644
--- a/arch/arm/boot/compressed/big-endian.S
+++ b/arch/arm/boot/compressed/big-endian.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/arm/boot/compressed/big-endian.S
  *
diff --git a/arch/arm/boot/compressed/debug.S b/arch/arm/boot/compressed/debug.S
index 5392ee63338f..6bf2917a4621 100644
--- a/arch/arm/boot/compressed/debug.S
+++ b/arch/arm/boot/compressed/debug.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 
@@ -23,7 +24,11 @@ ENTRY(putc)
 	strb	r0, [r1]
 	mov	r0, #0x03		@ SYS_WRITEC
    ARM(	svc	#0x123456	)
+#ifdef CONFIG_CPU_V7M
+ THUMB(	bkpt	#0xab		)
+#else
  THUMB(	svc	#0xab		)
+#endif
 	mov	pc, lr
 	.align	2
 1:	.word	_GLOBAL_OFFSET_TABLE_ - .
diff --git a/arch/arm/boot/compressed/decompress.c b/arch/arm/boot/compressed/decompress.c
index f3a4bedd1afc..a2ac3fe7dbf8 100644
--- a/arch/arm/boot/compressed/decompress.c
+++ b/arch/arm/boot/compressed/decompress.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _LINUX_STRING_H_
 
 #include <linux/compiler.h>	/* for inline */
diff --git a/arch/arm/boot/compressed/head-sa1100.S b/arch/arm/boot/compressed/head-sa1100.S
index 3115e313d9f6..95abdd850fe3 100644
--- a/arch/arm/boot/compressed/head-sa1100.S
+++ b/arch/arm/boot/compressed/head-sa1100.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * linux/arch/arm/boot/compressed/head-sa1100.S
  * 
diff --git a/arch/arm/boot/compressed/head-sharpsl.S b/arch/arm/boot/compressed/head-sharpsl.S
index eb0084ea1ec4..992e784500fa 100644
--- a/arch/arm/boot/compressed/head-sharpsl.S
+++ b/arch/arm/boot/compressed/head-sharpsl.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/arch/arm/boot/compressed/head-sharpsl.S
  *
diff --git a/arch/arm/boot/compressed/head-xscale.S b/arch/arm/boot/compressed/head-xscale.S
index 6ab0599c02dd..20fa44d59f82 100644
--- a/arch/arm/boot/compressed/head-xscale.S
+++ b/arch/arm/boot/compressed/head-xscale.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/arch/arm/boot/compressed/head-xscale.S
  *
diff --git a/arch/arm/boot/compressed/libfdt_env.h b/arch/arm/boot/compressed/libfdt_env.h
index 17ae0f3efac8..07437816e098 100644
--- a/arch/arm/boot/compressed/libfdt_env.h
+++ b/arch/arm/boot/compressed/libfdt_env.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARM_LIBFDT_ENV_H
 #define _ARM_LIBFDT_ENV_H
 
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index d4f891f56996..16a8a804e958 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c
  * 
diff --git a/arch/arm/boot/compressed/piggy.S b/arch/arm/boot/compressed/piggy.S
index f72088495f43..0284f84dcf38 100644
--- a/arch/arm/boot/compressed/piggy.S
+++ b/arch/arm/boot/compressed/piggy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.section .piggydata,#alloc
 	.globl	input_data
 input_data:
diff --git a/arch/arm/boot/compressed/string.c b/arch/arm/boot/compressed/string.c
index 689467448736..309e1bbad75d 100644
--- a/arch/arm/boot/compressed/string.c
+++ b/arch/arm/boot/compressed/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/boot/compressed/string.c
  *
diff --git a/arch/arm/boot/compressed/vmlinux.lds.S b/arch/arm/boot/compressed/vmlinux.lds.S
index 7a4c59154361..7d06aa19c3e6 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.S
+++ b/arch/arm/boot/compressed/vmlinux.lds.S
@@ -85,6 +85,15 @@ SECTIONS
 
   _edata = .;
 
+  /*
+   * The image_end section appears after any additional loadable sections
+   * that the linker may decide to insert in the binary image.  Having
+   * this symbol allows further debug in the near future.
+   */
+  .image_end (NOLOAD) : {
+    _edata_real = .;
+  }
+
   _magic_sig = ZIMAGE_MAGIC(0x016f2818);
   _magic_start = ZIMAGE_MAGIC(_start);
   _magic_end = ZIMAGE_MAGIC(_edata);
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index faf46abaa4a2..eff87a344566 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifeq ($(CONFIG_OF),y)
 
 dtb-$(CONFIG_ARCH_ALPINE) += \
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 7d7ca054c557..e58fab8aec5d 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -36,6 +36,8 @@
 		phy1 = &usb1_phy;
 		ethernet0 = &cpsw_emac0;
 		ethernet1 = &cpsw_emac1;
+		spi0 = &spi0;
+		spi1 = &spi1;
 	};
 
 	cpus {
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 9d276af7c539..081fa68b6f98 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -388,6 +388,7 @@
 	pinctrl-0 = <&cpsw_default>;
 	pinctrl-1 = <&cpsw_sleep>;
 	status = "okay";
+	slaves = <1>;
 };
 
 &davinci_mdio {
@@ -402,11 +403,6 @@
 	phy-mode = "rmii";
 };
 
-&cpsw_emac1 {
-	phy_id = <&davinci_mdio>, <1>;
-	phy-mode = "rmii";
-};
-
 &phy_sel {
 	rmii-clock-ext;
 };
diff --git a/arch/arm/boot/dts/am57xx-commercial-grade.dtsi b/arch/arm/boot/dts/am57xx-commercial-grade.dtsi
index c183654464e9..3eed6e09c884 100644
--- a/arch/arm/boot/dts/am57xx-commercial-grade.dtsi
+++ b/arch/arm/boot/dts/am57xx-commercial-grade.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 &cpu_alert0 {
 	temperature = <80000>; /* milliCelsius */
 };
diff --git a/arch/arm/boot/dts/am57xx-industrial-grade.dtsi b/arch/arm/boot/dts/am57xx-industrial-grade.dtsi
index 70c8c4ba1933..422f953fc8d8 100644
--- a/arch/arm/boot/dts/am57xx-industrial-grade.dtsi
+++ b/arch/arm/boot/dts/am57xx-industrial-grade.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 &cpu_alert0 {
 	temperature = <90000>; /* milliCelsius */
 };
diff --git a/arch/arm/boot/dts/armada-375.dtsi b/arch/arm/boot/dts/armada-375.dtsi
index 7225c7ce9a8d..2cb1bcd30976 100644
--- a/arch/arm/boot/dts/armada-375.dtsi
+++ b/arch/arm/boot/dts/armada-375.dtsi
@@ -178,9 +178,9 @@
 				reg = <0x8000 0x1000>;
 				cache-unified;
 				cache-level = <2>;
-				arm,double-linefill-incr = <1>;
+				arm,double-linefill-incr = <0>;
 				arm,double-linefill-wrap = <0>;
-				arm,double-linefill = <1>;
+				arm,double-linefill = <0>;
 				prefetch-data = <1>;
 			};
 
diff --git a/arch/arm/boot/dts/armada-38x.dtsi b/arch/arm/boot/dts/armada-38x.dtsi
index 7ff0811e61db..00ff549d4e39 100644
--- a/arch/arm/boot/dts/armada-38x.dtsi
+++ b/arch/arm/boot/dts/armada-38x.dtsi
@@ -143,9 +143,9 @@
 				reg = <0x8000 0x1000>;
 				cache-unified;
 				cache-level = <2>;
-				arm,double-linefill-incr = <1>;
+				arm,double-linefill-incr = <0>;
 				arm,double-linefill-wrap = <0>;
-				arm,double-linefill = <1>;
+				arm,double-linefill = <0>;
 				prefetch-data = <1>;
 			};
 
@@ -178,7 +178,7 @@
 			};
 
 			i2c0: i2c@11000 {
-				compatible = "marvell,mv64xxx-i2c";
+				compatible = "marvell,mv78230-a0-i2c", "marvell,mv64xxx-i2c";
 				reg = <0x11000 0x20>;
 				#address-cells = <1>;
 				#size-cells = <0>;
@@ -189,7 +189,7 @@
 			};
 
 			i2c1: i2c@11100 {
-				compatible = "marvell,mv64xxx-i2c";
+				compatible = "marvell,mv78230-a0-i2c", "marvell,mv64xxx-i2c";
 				reg = <0x11100 0x20>;
 				#address-cells = <1>;
 				#size-cells = <0>;
diff --git a/arch/arm/boot/dts/armada-39x.dtsi b/arch/arm/boot/dts/armada-39x.dtsi
index ea657071e278..5218bd2a248d 100644
--- a/arch/arm/boot/dts/armada-39x.dtsi
+++ b/arch/arm/boot/dts/armada-39x.dtsi
@@ -111,9 +111,9 @@
 				reg = <0x8000 0x1000>;
 				cache-unified;
 				cache-level = <2>;
-				arm,double-linefill-incr = <1>;
+				arm,double-linefill-incr = <0>;
 				arm,double-linefill-wrap = <0>;
-				arm,double-linefill = <1>;
+				arm,double-linefill = <0>;
 				prefetch-data = <1>;
 			};
 
diff --git a/arch/arm/boot/dts/armv7-m.dtsi b/arch/arm/boot/dts/armv7-m.dtsi
index ba332e399be4..26f5443d85e1 100644
--- a/arch/arm/boot/dts/armv7-m.dtsi
+++ b/arch/arm/boot/dts/armv7-m.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	nvic: interrupt-controller@e000e100  {
 		compatible = "arm,armv7m-nvic";
diff --git a/arch/arm/boot/dts/aspeed-ast2500-evb.dts b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
index 7c90dac99822..f53e89d63477 100644
--- a/arch/arm/boot/dts/aspeed-ast2500-evb.dts
+++ b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "aspeed-g5.dtsi"
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
index 112551766275..e1b523bd5b8b 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "aspeed-g4.dtsi"
diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts b/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
index 1190fec1b5d0..6dd77cba191c 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-romulus.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "aspeed-g5.dtsi"
diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi
index 22b958537d31..fcc5efbd0879 100644
--- a/arch/arm/boot/dts/aspeed-g4.dtsi
+++ b/arch/arm/boot/dts/aspeed-g4.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "skeleton.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index 9cffe347b828..eab8f549a6fe 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "skeleton.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/at91-ariettag25.dts b/arch/arm/boot/dts/at91-ariettag25.dts
index c514502081d2..21c5b56c92e0 100644
--- a/arch/arm/boot/dts/at91-ariettag25.dts
+++ b/arch/arm/boot/dts/at91-ariettag25.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for Arietta G25
  * This device tree is minimal, to activate more peripherals, see:
diff --git a/arch/arm/boot/dts/at91-sama5d27_som1.dtsi b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
index 63a5af898165..cf0087b4c9e1 100644
--- a/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
+++ b/arch/arm/boot/dts/at91-sama5d27_som1.dtsi
@@ -67,8 +67,8 @@
 				pinctrl-0 = <&pinctrl_macb0_default>;
 				phy-mode = "rmii";
 
-				ethernet-phy@1 {
-					reg = <0x1>;
+				ethernet-phy@0 {
+					reg = <0x0>;
 					interrupt-parent = <&pioA>;
 					interrupts = <PIN_PD31 IRQ_TYPE_LEVEL_LOW>;
 					pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
index 9c9088c99cc4..60cb084a8d92 100644
--- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -67,7 +67,10 @@
 
 		usb1: ohci@00400000 {
 			num-ports = <3>;
-			atmel,vbus-gpio = <&pioA PIN_PA10 GPIO_ACTIVE_HIGH>;
+			atmel,vbus-gpio = <0 /* &pioA PIN_PD20 GPIO_ACTIVE_HIGH */
+					   &pioA PIN_PA27 GPIO_ACTIVE_HIGH
+					   0
+					  >;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb_default>;
 			status = "okay";
@@ -120,7 +123,7 @@
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_mikrobus2_uart>;
 				atmel,use-dma-rx;
-				atmel-use-dma-tx;
+				atmel,use-dma-tx;
 				status = "okay";
 			};
 
@@ -178,7 +181,7 @@
 			uart4: serial@fc00c000 {
 				atmel,use-dma-rx;
 				atmel,use-dma-tx;
-				pinctrl-name = "default";
+				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_mikrobus1_uart>;
 				status = "okay";
 			};
@@ -330,7 +333,7 @@
 				};
 
 				pinctrl_led_gpio_default: led_gpio_default {
-					pinmux = <PIN_PA27__GPIO>,
+					pinmux = <PIN_PA10__GPIO>,
 						 <PIN_PB1__GPIO>,
 						 <PIN_PA31__GPIO>;
 					bias-pull-up;
@@ -396,7 +399,7 @@
 				};
 
 				pinctrl_usb_default: usb_default {
-					pinmux = <PIN_PA10__GPIO>,
+					pinmux = <PIN_PA27__GPIO>,
 						 <PIN_PD19__GPIO>;
 					bias-disable;
 				};
@@ -520,17 +523,17 @@
 
 		red {
 			label = "red";
-			gpios = <&pioA PIN_PA27 GPIO_ACTIVE_LOW>;
+			gpios = <&pioA PIN_PA10 GPIO_ACTIVE_HIGH>;
 		};
 
 		green {
 			label = "green";
-			gpios = <&pioA PIN_PB1 GPIO_ACTIVE_LOW>;
+			gpios = <&pioA PIN_PB1 GPIO_ACTIVE_HIGH>;
 		};
 
 		blue {
 			label = "blue";
-			gpios = <&pioA PIN_PA31 GPIO_ACTIVE_LOW>;
+			gpios = <&pioA PIN_PA31 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
 		};
 	};
diff --git a/arch/arm/boot/dts/at91-sama5d2_xplained.dts b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
index c7e9ccf2bc87..cbc26001247b 100644
--- a/arch/arm/boot/dts/at91-sama5d2_xplained.dts
+++ b/arch/arm/boot/dts/at91-sama5d2_xplained.dts
@@ -309,7 +309,7 @@
 				vddana-supply = <&vdd_3v3_lp_reg>;
 				vref-supply = <&vdd_3v3_lp_reg>;
 				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_adc_default>;
+				pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
 				status = "okay";
 			};
 
@@ -340,6 +340,20 @@
 					bias-disable;
 				};
 
+				/*
+				 * The ADTRG pin can work on any edge type.
+				 * In here it's being pulled up, so need to
+				 * connect it to ground to get an edge e.g.
+				 * Trigger can be configured on falling, rise
+				 * or any edge, and the pull-up can be changed
+				 * to pull-down or left floating according to
+				 * needs.
+				 */
+				pinctrl_adtrg_default: adtrg_default {
+					pinmux = <PIN_PD31__ADTRG>;
+					bias-pull-up;
+				};
+
 				pinctrl_charger_chglev: charger_chglev {
 					pinmux = <PIN_PA12__GPIO>;
 					bias-disable;
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
index 9f866491efdf..f81ae0a10310 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a-plus.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
diff --git a/arch/arm/boot/dts/bcm2835-rpi-a.dts b/arch/arm/boot/dts/bcm2835-rpi-a.dts
index 4b1af06c8dc0..7a960a048204 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-a.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-a.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
index a846f1e781d8..0161a8483e39 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
index e860964e39fa..4bc70efe43d6 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b-rev2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b.dts b/arch/arm/boot/dts/bcm2835-rpi-b.dts
index 5d77f3f8c4c5..cca4a75a5651 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-b.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-b.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2835.dtsi"
 #include "bcm2835-rpi.dtsi"
diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
index 82651c3eb682..b8565fc33eea 100644
--- a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts
@@ -18,12 +18,9 @@
 	compatible = "raspberrypi,model-zero-w", "brcm,bcm2835";
 	model = "Raspberry Pi Zero W";
 
-	/* Needed by firmware to properly init UARTs */
-	aliases {
-		uart0 = "/soc/serial@7e201000";
-		uart1 = "/soc/serial@7e215040";
-		serial0 = "/soc/serial@7e201000";
-		serial1 = "/soc/serial@7e215040";
+	chosen {
+		/* 8250 auxiliary UART instead of pl011 */
+		stdout-path = "serial1:115200n8";
 	};
 
 	leds {
diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 659b6e9513b1..0e3d2a5ff208 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index e8de41444b68..6669355fd655 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2836.dtsi"
 #include "bcm2835-rpi.dtsi"
diff --git a/arch/arm/boot/dts/bcm2836.dtsi b/arch/arm/boot/dts/bcm2836.dtsi
index 2c26d0be8b03..61e158003509 100644
--- a/arch/arm/boot/dts/bcm2836.dtsi
+++ b/arch/arm/boot/dts/bcm2836.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "bcm283x.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index 20725ca487f3..eb1a28da57e3 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2837.dtsi"
 #include "bcm2835-rpi.dtsi"
@@ -8,6 +9,11 @@
 	compatible = "raspberrypi,3-model-b", "brcm,bcm2837";
 	model = "Raspberry Pi 3 Model B";
 
+	chosen {
+		/* 8250 auxiliary UART instead of pl011 */
+		stdout-path = "serial1:115200n8";
+	};
+
 	memory {
 		reg = <0 0x40000000>;
 	};
diff --git a/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi b/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
index 9a0599f711ff..967e081cb9c2 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-smsc9512.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	aliases {
 		ethernet0 = &ethernet;
diff --git a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
index e7d217c967a1..e2fd9610e125 100644
--- a/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
+++ b/arch/arm/boot/dts/bcm283x-rpi-usb-otg.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 &usb {
 	dr_mode = "otg";
 	g-rx-fifo-size = <256>;
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 431dcfc900c0..013431e3d7c3 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -20,8 +20,13 @@
 	#address-cells = <1>;
 	#size-cells = <1>;
 
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+	};
+
 	chosen {
-		bootargs = "earlyprintk console=ttyAMA0";
+		stdout-path = "serial0:115200n8";
 	};
 
 	thermal-zones {
diff --git a/arch/arm/boot/dts/bcm63138.dtsi b/arch/arm/boot/dts/bcm63138.dtsi
index d0560e8cd6de..43ee992ccdcf 100644
--- a/arch/arm/boot/dts/bcm63138.dtsi
+++ b/arch/arm/boot/dts/bcm63138.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Broadcom BCM63138 DSL SoCs Device Tree
  */
diff --git a/arch/arm/boot/dts/bcm7445-bcm97445svmb.dts b/arch/arm/boot/dts/bcm7445-bcm97445svmb.dts
index 0bb8d17e4c2d..8006c69a3fdf 100644
--- a/arch/arm/boot/dts/bcm7445-bcm97445svmb.dts
+++ b/arch/arm/boot/dts/bcm7445-bcm97445svmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm7445.dtsi"
 
diff --git a/arch/arm/boot/dts/bcm7445.dtsi b/arch/arm/boot/dts/bcm7445.dtsi
index 4791321969b3..c859aa6f358c 100644
--- a/arch/arm/boot/dts/bcm7445.dtsi
+++ b/arch/arm/boot/dts/bcm7445.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
 #include "skeleton.dtsi"
diff --git a/arch/arm/boot/dts/bcm963138dvt.dts b/arch/arm/boot/dts/bcm963138dvt.dts
index 370aa2cfddf2..c61673638fa8 100644
--- a/arch/arm/boot/dts/bcm963138dvt.dts
+++ b/arch/arm/boot/dts/bcm963138dvt.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Broadcom BCM63138 Reference Board DTS
  */
diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
index 67e72bc72e80..c75507922f7d 100644
--- a/arch/arm/boot/dts/da850-evm.dts
+++ b/arch/arm/boot/dts/da850-evm.dts
@@ -15,6 +15,13 @@
 	compatible = "ti,da850-evm", "ti,da850";
 	model = "DA850/AM1808/OMAP-L138 EVM";
 
+	aliases {
+		serial0 = &serial0;
+		serial1 = &serial1;
+		serial2 = &serial2;
+		ethernet0 = &eth0;
+	};
+
 	soc@1c00000 {
 		pmx_core: pinmux@14120 {
 			status = "okay";
diff --git a/arch/arm/boot/dts/dove-cubox-es.dts b/arch/arm/boot/dts/dove-cubox-es.dts
index e28ef056dd17..ad361ec1361d 100644
--- a/arch/arm/boot/dts/dove-cubox-es.dts
+++ b/arch/arm/boot/dts/dove-cubox-es.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "dove-cubox.dts"
 
 / {
diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index af3cb633135f..580e3cbcfbf7 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "dove.dtsi"
diff --git a/arch/arm/boot/dts/dove-d2plug.dts b/arch/arm/boot/dts/dove-d2plug.dts
index c11d3636c8e5..273f12ca2512 100644
--- a/arch/arm/boot/dts/dove-d2plug.dts
+++ b/arch/arm/boot/dts/dove-d2plug.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "dove.dtsi"
diff --git a/arch/arm/boot/dts/dove-d3plug.dts b/arch/arm/boot/dts/dove-d3plug.dts
index e88ff83f1dec..826026c28f90 100644
--- a/arch/arm/boot/dts/dove-d3plug.dts
+++ b/arch/arm/boot/dts/dove-d3plug.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "dove.dtsi"
diff --git a/arch/arm/boot/dts/dove-dove-db.dts b/arch/arm/boot/dts/dove-dove-db.dts
index bb725dca3a10..1754a62e014e 100644
--- a/arch/arm/boot/dts/dove-dove-db.dts
+++ b/arch/arm/boot/dts/dove-dove-db.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "dove.dtsi"
diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 1475d3672e56..f4a07bb7c3a2 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /include/ "skeleton.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi
index cf229dfabf61..e62b62875cba 100644
--- a/arch/arm/boot/dts/dra7xx-clocks.dtsi
+++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi
@@ -1817,6 +1817,8 @@
 		clocks = <&abe_24m_fclk>, <&abe_sys_clk_div>, <&func_24m_clk>, <&atl_clkin3_ck>, <&atl_clkin2_ck>, <&atl_clkin1_ck>, <&atl_clkin0_ck>, <&sys_clkin2>, <&ref_clkin0_ck>, <&ref_clkin1_ck>, <&ref_clkin2_ck>, <&ref_clkin3_ck>, <&mlb_clk>, <&mlbp_clk>;
 		ti,bit-shift = <24>;
 		reg = <0x1868>;
+		assigned-clocks = <&mcasp3_ahclkx_mux>;
+		assigned-clock-parents = <&abe_24m_fclk>;
 	};
 
 	mcasp3_aux_gfclk_mux: mcasp3_aux_gfclk_mux@1868 {
diff --git a/arch/arm/boot/dts/efm32gg-dk3750.dts b/arch/arm/boot/dts/efm32gg-dk3750.dts
index 98fc667d22c7..c9f3ea29cf9e 100644
--- a/arch/arm/boot/dts/efm32gg-dk3750.dts
+++ b/arch/arm/boot/dts/efm32gg-dk3750.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device tree for EFM32GG-DK3750 development board.
  *
diff --git a/arch/arm/boot/dts/efm32gg.dtsi b/arch/arm/boot/dts/efm32gg.dtsi
index b78c57e51ed5..8a58e49144cc 100644
--- a/arch/arm/boot/dts/efm32gg.dtsi
+++ b/arch/arm/boot/dts/efm32gg.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device tree for Energy Micro EFM32 Giant Gecko SoC.
  *
diff --git a/arch/arm/boot/dts/elpida_ecb240abacn.dtsi b/arch/arm/boot/dts/elpida_ecb240abacn.dtsi
index f97f70f83374..d87ee4794f83 100644
--- a/arch/arm/boot/dts/elpida_ecb240abacn.dtsi
+++ b/arch/arm/boot/dts/elpida_ecb240abacn.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common devices used in different OMAP boards
  */
diff --git a/arch/arm/boot/dts/gemini-nas4220b.dts b/arch/arm/boot/dts/gemini-nas4220b.dts
index b4fc58c8cf8d..d6a22e677c7a 100644
--- a/arch/arm/boot/dts/gemini-nas4220b.dts
+++ b/arch/arm/boot/dts/gemini-nas4220b.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for the Gemini-based Raidsonic NAS IB-4220-B
  */
diff --git a/arch/arm/boot/dts/gemini-rut1xx.dts b/arch/arm/boot/dts/gemini-rut1xx.dts
index 3613b264f45f..500057b6570e 100644
--- a/arch/arm/boot/dts/gemini-rut1xx.dts
+++ b/arch/arm/boot/dts/gemini-rut1xx.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for Teltonika RUT1xx
  */
diff --git a/arch/arm/boot/dts/gemini-sq201.dts b/arch/arm/boot/dts/gemini-sq201.dts
index 7cfa9caf47d4..63c02ca9513c 100644
--- a/arch/arm/boot/dts/gemini-sq201.dts
+++ b/arch/arm/boot/dts/gemini-sq201.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for ITian Square One SQ201 NAS
  */
diff --git a/arch/arm/boot/dts/gemini-wbd111.dts b/arch/arm/boot/dts/gemini-wbd111.dts
index 38a49e750478..b413fd12c5ba 100644
--- a/arch/arm/boot/dts/gemini-wbd111.dts
+++ b/arch/arm/boot/dts/gemini-wbd111.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for Wiliboard WBD-111
  */
diff --git a/arch/arm/boot/dts/gemini-wbd222.dts b/arch/arm/boot/dts/gemini-wbd222.dts
index f77e34e0df0b..3ba710538662 100644
--- a/arch/arm/boot/dts/gemini-wbd222.dts
+++ b/arch/arm/boot/dts/gemini-wbd222.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for Wiliboard WBD-222
  */
diff --git a/arch/arm/boot/dts/gemini.dtsi b/arch/arm/boot/dts/gemini.dtsi
index c68e8d430234..b9b07d0895cf 100644
--- a/arch/arm/boot/dts/gemini.dtsi
+++ b/arch/arm/boot/dts/gemini.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree file for Cortina systems Gemini SoC
  */
@@ -145,11 +146,12 @@
 		};
 
 		watchdog@41000000 {
-			compatible = "cortina,gemini-watchdog";
+			compatible = "cortina,gemini-watchdog", "faraday,ftwdt010";
 			reg = <0x41000000 0x1000>;
 			interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
 			resets = <&syscon GEMINI_RESET_WDOG>;
 			clocks = <&syscon GEMINI_CLK_APB>;
+			clock-names = "PCLK";
 		};
 
 		uart0: serial@42000000 {
diff --git a/arch/arm/boot/dts/imx28-apx4devkit.dts b/arch/arm/boot/dts/imx28-apx4devkit.dts
index 1092b761d7ac..d2a91976e67f 100644
--- a/arch/arm/boot/dts/imx28-apx4devkit.dts
+++ b/arch/arm/boot/dts/imx28-apx4devkit.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "imx28.dtsi"
 
diff --git a/arch/arm/boot/dts/imx6qdl-dfi-fs700-m60.dtsi b/arch/arm/boot/dts/imx6qdl-dfi-fs700-m60.dtsi
index d78312c63672..ebe7a8bddf04 100644
--- a/arch/arm/boot/dts/imx6qdl-dfi-fs700-m60.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-dfi-fs700-m60.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/gpio/gpio.h>
 
 / {
diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi
index f46814a7ea44..4d308d17f040 100644
--- a/arch/arm/boot/dts/imx7d.dtsi
+++ b/arch/arm/boot/dts/imx7d.dtsi
@@ -144,10 +144,10 @@
 		interrupt-names = "msi";
 		#interrupt-cells = <1>;
 		interrupt-map-mask = <0 0 0 0x7>;
-		interrupt-map = <0 0 0 1 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 2 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 3 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
-				<0 0 0 4 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-map = <0 0 0 1 &intc GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 2 &intc GIC_SPI 123 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 3 &intc GIC_SPI 124 IRQ_TYPE_LEVEL_HIGH>,
+				<0 0 0 4 &intc GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&clks IMX7D_PCIE_CTRL_ROOT_CLK>,
 			 <&clks IMX7D_PLL_ENET_MAIN_100M_CLK>,
 			 <&clks IMX7D_PCIE_PHY_ROOT_CLK>;
diff --git a/arch/arm/boot/dts/integrator.dtsi b/arch/arm/boot/dts/integrator.dtsi
index 6fe0dd1d3541..380f9ae60c78 100644
--- a/arch/arm/boot/dts/integrator.dtsi
+++ b/arch/arm/boot/dts/integrator.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SoC core Device Tree for the ARM Integrator platforms
  */
diff --git a/arch/arm/boot/dts/integratorap.dts b/arch/arm/boot/dts/integratorap.dts
index e8b249f92fb3..a5d88a213dcd 100644
--- a/arch/arm/boot/dts/integratorap.dts
+++ b/arch/arm/boot/dts/integratorap.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree for the ARM Integrator/AP platform
  */
diff --git a/arch/arm/boot/dts/integratorcp.dts b/arch/arm/boot/dts/integratorcp.dts
index 97f38b57a702..a185ab8759fa 100644
--- a/arch/arm/boot/dts/integratorcp.dts
+++ b/arch/arm/boot/dts/integratorcp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree for the ARM Integrator/CP platform
  */
diff --git a/arch/arm/boot/dts/kirkwood-6192.dtsi b/arch/arm/boot/dts/kirkwood-6192.dtsi
index f003f3f1bd65..396bcba08adb 100644
--- a/arch/arm/boot/dts/kirkwood-6192.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6192.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	mbus@f1000000 {
 		pciec: pcie@82000000 {
diff --git a/arch/arm/boot/dts/kirkwood-6281.dtsi b/arch/arm/boot/dts/kirkwood-6281.dtsi
index 47d4b3d3d9e9..faa05849a40d 100644
--- a/arch/arm/boot/dts/kirkwood-6281.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6281.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	mbus@f1000000 {
 		pciec: pcie@82000000 {
diff --git a/arch/arm/boot/dts/kirkwood-6282.dtsi b/arch/arm/boot/dts/kirkwood-6282.dtsi
index a13dad0a7c08..e84c54b77dea 100644
--- a/arch/arm/boot/dts/kirkwood-6282.dtsi
+++ b/arch/arm/boot/dts/kirkwood-6282.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	mbus@f1000000 {
 		pciec: pcie@82000000 {
diff --git a/arch/arm/boot/dts/kirkwood-98dx4122.dtsi b/arch/arm/boot/dts/kirkwood-98dx4122.dtsi
index 90d4d71b6683..299c147298c3 100644
--- a/arch/arm/boot/dts/kirkwood-98dx4122.dtsi
+++ b/arch/arm/boot/dts/kirkwood-98dx4122.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	mbus@f1000000 {
 		pciec: pcie@82000000 {
diff --git a/arch/arm/boot/dts/kirkwood-cloudbox.dts b/arch/arm/boot/dts/kirkwood-cloudbox.dts
index 555b7e4c58a5..448b0cd23b5f 100644
--- a/arch/arm/boot/dts/kirkwood-cloudbox.dts
+++ b/arch/arm/boot/dts/kirkwood-cloudbox.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-dns320.dts b/arch/arm/boot/dts/kirkwood-dns320.dts
index d85ef0a91b50..d6b0f418fd01 100644
--- a/arch/arm/boot/dts/kirkwood-dns320.dts
+++ b/arch/arm/boot/dts/kirkwood-dns320.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-dnskw.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-dns325.dts b/arch/arm/boot/dts/kirkwood-dns325.dts
index 5e586ed04c58..94d9c06cbbf5 100644
--- a/arch/arm/boot/dts/kirkwood-dns325.dts
+++ b/arch/arm/boot/dts/kirkwood-dns325.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-dnskw.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-dnskw.dtsi b/arch/arm/boot/dts/kirkwood-dnskw.dtsi
index d8fca9db46d0..cbaf06f2f78e 100644
--- a/arch/arm/boot/dts/kirkwood-dnskw.dtsi
+++ b/arch/arm/boot/dts/kirkwood-dnskw.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "kirkwood.dtsi"
 #include "kirkwood-6281.dtsi"
 
diff --git a/arch/arm/boot/dts/kirkwood-dockstar.dts b/arch/arm/boot/dts/kirkwood-dockstar.dts
index 849736349511..6a3f1bf6d9f1 100644
--- a/arch/arm/boot/dts/kirkwood-dockstar.dts
+++ b/arch/arm/boot/dts/kirkwood-dockstar.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-dreamplug.dts b/arch/arm/boot/dts/kirkwood-dreamplug.dts
index e2abc8246bf3..7f326e267494 100644
--- a/arch/arm/boot/dts/kirkwood-dreamplug.dts
+++ b/arch/arm/boot/dts/kirkwood-dreamplug.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-goflexnet.dts b/arch/arm/boot/dts/kirkwood-goflexnet.dts
index aa60a0b049a7..02d87e0a1061 100644
--- a/arch/arm/boot/dts/kirkwood-goflexnet.dts
+++ b/arch/arm/boot/dts/kirkwood-goflexnet.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
index b2d9834bf458..ff1260ee3fe8 100644
--- a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
+++ b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts
index 5bf62897014c..962a910a6f5c 100644
--- a/arch/arm/boot/dts/kirkwood-ib62x0.dts
+++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-iconnect.dts b/arch/arm/boot/dts/kirkwood-iconnect.dts
index d25184ae4af3..4a512d80912c 100644
--- a/arch/arm/boot/dts/kirkwood-iconnect.dts
+++ b/arch/arm/boot/dts/kirkwood-iconnect.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts b/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
index 8474bffec0ca..62272d58664f 100644
--- a/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
+++ b/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-is2.dts b/arch/arm/boot/dts/kirkwood-is2.dts
index 4121674abd1c..1bc16a5cdbaa 100644
--- a/arch/arm/boot/dts/kirkwood-is2.dts
+++ b/arch/arm/boot/dts/kirkwood-is2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/leds/leds-ns2.h>
diff --git a/arch/arm/boot/dts/kirkwood-km_common.dtsi b/arch/arm/boot/dts/kirkwood-km_common.dtsi
index 7962bdefde49..75dc83914f56 100644
--- a/arch/arm/boot/dts/kirkwood-km_common.dtsi
+++ b/arch/arm/boot/dts/kirkwood-km_common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	chosen {
 		bootargs = "console=ttyS0,115200n8 earlyprintk";
diff --git a/arch/arm/boot/dts/kirkwood-km_fixedeth.dts b/arch/arm/boot/dts/kirkwood-km_fixedeth.dts
index 9895f2b10f8a..515be7bccc0a 100644
--- a/arch/arm/boot/dts/kirkwood-km_fixedeth.dts
+++ b/arch/arm/boot/dts/kirkwood-km_fixedeth.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-km_kirkwood.dts b/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
index 235bf382fff9..f035eff1c111 100644
--- a/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
+++ b/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-lschlv2.dts b/arch/arm/boot/dts/kirkwood-lschlv2.dts
index e2fa368aef25..1d737d903f5f 100644
--- a/arch/arm/boot/dts/kirkwood-lschlv2.dts
+++ b/arch/arm/boot/dts/kirkwood-lschlv2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-lsxl.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-lsxhl.dts b/arch/arm/boot/dts/kirkwood-lsxhl.dts
index 8d89cdf8d6bf..a56e0d797778 100644
--- a/arch/arm/boot/dts/kirkwood-lsxhl.dts
+++ b/arch/arm/boot/dts/kirkwood-lsxhl.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-lsxl.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-lsxl.dtsi b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
index 8b7c6ce79a41..7b151acb9984 100644
--- a/arch/arm/boot/dts/kirkwood-lsxl.dtsi
+++ b/arch/arm/boot/dts/kirkwood-lsxl.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "kirkwood.dtsi"
 #include "kirkwood-6281.dtsi"
 
diff --git a/arch/arm/boot/dts/kirkwood-mplcec4.dts b/arch/arm/boot/dts/kirkwood-mplcec4.dts
index aa413b0bcce2..b80d12f6aa49 100644
--- a/arch/arm/boot/dts/kirkwood-mplcec4.dts
+++ b/arch/arm/boot/dts/kirkwood-mplcec4.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-ns2-common.dtsi b/arch/arm/boot/dts/kirkwood-ns2-common.dtsi
index 282605f4c92c..51530ea86622 100644
--- a/arch/arm/boot/dts/kirkwood-ns2-common.dtsi
+++ b/arch/arm/boot/dts/kirkwood-ns2-common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "kirkwood.dtsi"
 #include "kirkwood-6281.dtsi"
 
diff --git a/arch/arm/boot/dts/kirkwood-ns2.dts b/arch/arm/boot/dts/kirkwood-ns2.dts
index 190189d235e6..7b67083e1ec0 100644
--- a/arch/arm/boot/dts/kirkwood-ns2.dts
+++ b/arch/arm/boot/dts/kirkwood-ns2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/leds/leds-ns2.h>
diff --git a/arch/arm/boot/dts/kirkwood-ns2lite.dts b/arch/arm/boot/dts/kirkwood-ns2lite.dts
index 2c661add0cc0..b0cb5907ed63 100644
--- a/arch/arm/boot/dts/kirkwood-ns2lite.dts
+++ b/arch/arm/boot/dts/kirkwood-ns2lite.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-ns2-common.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-ns2max.dts b/arch/arm/boot/dts/kirkwood-ns2max.dts
index 55cc41d9c80c..c0a087e77408 100644
--- a/arch/arm/boot/dts/kirkwood-ns2max.dts
+++ b/arch/arm/boot/dts/kirkwood-ns2max.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/leds/leds-ns2.h>
diff --git a/arch/arm/boot/dts/kirkwood-ns2mini.dts b/arch/arm/boot/dts/kirkwood-ns2mini.dts
index 9935f3ec29b4..5b9fa14b6428 100644
--- a/arch/arm/boot/dts/kirkwood-ns2mini.dts
+++ b/arch/arm/boot/dts/kirkwood-ns2mini.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/leds/leds-ns2.h>
diff --git a/arch/arm/boot/dts/kirkwood-nsa310.dts b/arch/arm/boot/dts/kirkwood-nsa310.dts
index 0b69ee4934fa..9b861c2e76c5 100644
--- a/arch/arm/boot/dts/kirkwood-nsa310.dts
+++ b/arch/arm/boot/dts/kirkwood-nsa310.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-nsa3x0-common.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-nsa310a.dts b/arch/arm/boot/dts/kirkwood-nsa310a.dts
index 3d2b3d494c19..b85e314f045a 100644
--- a/arch/arm/boot/dts/kirkwood-nsa310a.dts
+++ b/arch/arm/boot/dts/kirkwood-nsa310a.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood-nsa3x0-common.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-nsa3x0-common.dtsi b/arch/arm/boot/dts/kirkwood-nsa3x0-common.dtsi
index e09b79ac73fd..2c4037b07282 100644
--- a/arch/arm/boot/dts/kirkwood-nsa3x0-common.dtsi
+++ b/arch/arm/boot/dts/kirkwood-nsa3x0-common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "kirkwood.dtsi"
 #include "kirkwood-6281.dtsi"
 
diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
index c75da5f0ca48..8ea430168ea5 100644
--- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-pogoplug-series-4.dts b/arch/arm/boot/dts/kirkwood-pogoplug-series-4.dts
index b2f26239d298..5ce220ac9611 100644
--- a/arch/arm/boot/dts/kirkwood-pogoplug-series-4.dts
+++ b/arch/arm/boot/dts/kirkwood-pogoplug-series-4.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kirkwood-pogoplug-series-4.dts - Device tree file for PogoPlug Series 4
  * inspired by the board files made by Kevin Mihelich for ArchLinux,
diff --git a/arch/arm/boot/dts/kirkwood-topkick.dts b/arch/arm/boot/dts/kirkwood-topkick.dts
index 330aada6d33f..a5b51e29f63e 100644
--- a/arch/arm/boot/dts/kirkwood-topkick.dts
+++ b/arch/arm/boot/dts/kirkwood-topkick.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-ts219-6281.dts b/arch/arm/boot/dts/kirkwood-ts219-6281.dts
index ee62204e4ecd..30892c19aceb 100644
--- a/arch/arm/boot/dts/kirkwood-ts219-6281.dts
+++ b/arch/arm/boot/dts/kirkwood-ts219-6281.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-ts219-6282.dts b/arch/arm/boot/dts/kirkwood-ts219-6282.dts
index 3437bb396844..aba1205981f1 100644
--- a/arch/arm/boot/dts/kirkwood-ts219-6282.dts
+++ b/arch/arm/boot/dts/kirkwood-ts219-6282.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "kirkwood.dtsi"
diff --git a/arch/arm/boot/dts/kirkwood-ts219.dtsi b/arch/arm/boot/dts/kirkwood-ts219.dtsi
index 62e5e2d5c348..4faea1d9facf 100644
--- a/arch/arm/boot/dts/kirkwood-ts219.dtsi
+++ b/arch/arm/boot/dts/kirkwood-ts219.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	model = "QNAP TS219 family";
 	compatible = "qnap,ts219", "marvell,kirkwood";
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 29b8bd7e0d93..a70fc7f01fc3 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /include/ "skeleton.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/arm/boot/dts/moxart.dtsi b/arch/arm/boot/dts/moxart.dtsi
index 1f4c795d3f72..da7b3237bfe9 100644
--- a/arch/arm/boot/dts/moxart.dtsi
+++ b/arch/arm/boot/dts/moxart.dtsi
@@ -87,9 +87,10 @@
 		};
 
 		watchdog: watchdog@98500000 {
-			compatible = "moxa,moxart-watchdog";
+			compatible = "moxa,moxart-watchdog", "faraday,ftwdt010";
 			reg = <0x98500000 0x10>;
 			clocks = <&clk_apb>;
+			clock-names = "PCLK";
 		};
 
 		sdhci: sdhci@98e00000 {
diff --git a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
index 445fafc73254..ded7e8fec9eb 100644
--- a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
+++ b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common file for GPMC connected smsc911x on omaps
  *
diff --git a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
index 73e272fadc20..7f6aefd13451 100644
--- a/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
+++ b/arch/arm/boot/dts/omap-gpmc-smsc9221.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common file for GPMC connected smsc9221 on omaps
  *
diff --git a/arch/arm/boot/dts/omap-zoom-common.dtsi b/arch/arm/boot/dts/omap-zoom-common.dtsi
index 46ef3e443861..d4ad9e58b199 100644
--- a/arch/arm/boot/dts/omap-zoom-common.dtsi
+++ b/arch/arm/boot/dts/omap-zoom-common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common features on the Zoom debug board
  */
diff --git a/arch/arm/boot/dts/omap2420-n800.dts b/arch/arm/boot/dts/omap2420-n800.dts
index d8c1b423606a..f06d767e818b 100644
--- a/arch/arm/boot/dts/omap2420-n800.dts
+++ b/arch/arm/boot/dts/omap2420-n800.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "omap2420-n8x0-common.dtsi"
diff --git a/arch/arm/boot/dts/omap2420-n810-wimax.dts b/arch/arm/boot/dts/omap2420-n810-wimax.dts
index 6b25b0359ac9..ac9acbd609b6 100644
--- a/arch/arm/boot/dts/omap2420-n810-wimax.dts
+++ b/arch/arm/boot/dts/omap2420-n810-wimax.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "omap2420-n8x0-common.dtsi"
diff --git a/arch/arm/boot/dts/omap2420-n810.dts b/arch/arm/boot/dts/omap2420-n810.dts
index b604d26bd48c..7c485fbfa535 100644
--- a/arch/arm/boot/dts/omap2420-n810.dts
+++ b/arch/arm/boot/dts/omap2420-n810.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "omap2420-n8x0-common.dtsi"
diff --git a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
index 91886231e5a8..1de80c7886ab 100644
--- a/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
+++ b/arch/arm/boot/dts/omap2420-n8x0-common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "omap2420.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/omap3-cm-t3517.dts b/arch/arm/boot/dts/omap3-cm-t3517.dts
index 3d293b345e99..4994e33bf663 100644
--- a/arch/arm/boot/dts/omap3-cm-t3517.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3517.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for CompuLab CM-T3517
  */
diff --git a/arch/arm/boot/dts/omap3-cm-t3530.dts b/arch/arm/boot/dts/omap3-cm-t3530.dts
index 8dd14fcf6825..76e52c78cbb4 100644
--- a/arch/arm/boot/dts/omap3-cm-t3530.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3530.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for CompuLab CM-T3530
  */
diff --git a/arch/arm/boot/dts/omap3-cm-t3730.dts b/arch/arm/boot/dts/omap3-cm-t3730.dts
index bdf4b7fdda39..8c63ac5bbb12 100644
--- a/arch/arm/boot/dts/omap3-cm-t3730.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3730.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for CompuLab CM-T3730
  */
diff --git a/arch/arm/boot/dts/omap3-cm-t3x.dtsi b/arch/arm/boot/dts/omap3-cm-t3x.dtsi
index fccd5383243c..31d5ebf38892 100644
--- a/arch/arm/boot/dts/omap3-cm-t3x.dtsi
+++ b/arch/arm/boot/dts/omap3-cm-t3x.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common support for CompuLab CM-T3x CoMs
  */
diff --git a/arch/arm/boot/dts/omap3-cm-t3x30.dtsi b/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
index 046cd7733c4f..5e8943539fcc 100644
--- a/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
+++ b/arch/arm/boot/dts/omap3-cm-t3x30.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common support for CompuLab CM-T3x30 CoMs
  */
diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
index ff35803088e3..dbc3f030a16c 100644
--- a/arch/arm/boot/dts/omap3-evm-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common support for omap3 EVM boards
  */
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 26c20e1167b9..4acd32a1c4ef 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -144,15 +144,6 @@
 		io-channel-names = "temp", "bsi", "vbat";
 	};
 
-	rear_camera: camera@0 {
-		compatible = "linux,camera";
-
-		module {
-			model = "TCM8341MD";
-			sensor = <&cam1>;
-		};
-	};
-
 	pwm9: dmtimer-pwm {
 		compatible = "ti,omap-dmtimer-pwm";
 		#pwm-cells = <3>;
@@ -189,10 +180,8 @@
 				clock-lanes = <1>;
 				data-lanes = <0>;
 				lane-polarity = <0 0>;
-				clock-inv = <0>;
 				/* Select strobe = <1> for back camera, <0> for front camera */
 				strobe = <1>;
-				crc = <0>;
 			};
 		};
 	};
diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
index cb47ae79a5f9..1b0bd72945f2 100644
--- a/arch/arm/boot/dts/omap3-n950-n9.dtsi
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -267,15 +267,19 @@
 	clock-frequency = <400000>;
 
 	as3645a@30 {
+		#address-cells = <1>;
+		#size-cells = <0>;
 		reg = <0x30>;
 		compatible = "ams,as3645a";
-		flash {
+		flash@0 {
+			reg = <0x0>;
 			flash-timeout-us = <150000>;
 			flash-max-microamp = <320000>;
 			led-max-microamp = <60000>;
-			peak-current-limit = <1750000>;
+			ams,input-max-microamp = <1750000>;
 		};
-		indicator {
+		indicator@1 {
+			reg = <0x1>;
 			led-max-microamp = <10000>;
 		};
 	};
diff --git a/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi b/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi
index 157345bb8e79..25e100db7b1a 100644
--- a/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi
+++ b/arch/arm/boot/dts/omap3-panel-sharp-ls037v7dw01.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common file for omap dpi panels with QVGA and reset pins
  *
diff --git a/arch/arm/boot/dts/omap3-sb-t35.dtsi b/arch/arm/boot/dts/omap3-sb-t35.dtsi
index 4476fb685a1b..22b4c8bdcc65 100644
--- a/arch/arm/boot/dts/omap3-sb-t35.dtsi
+++ b/arch/arm/boot/dts/omap3-sb-t35.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common support for CompuLab SB-T35 used on SBC-T3530, SBC-T3517 and SBC-T3730
  */
diff --git a/arch/arm/boot/dts/omap3-sbc-t3517.dts b/arch/arm/boot/dts/omap3-sbc-t3517.dts
index c2d5c28a1a70..a69d32860421 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3517.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3517.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Suppport for CompuLab SBC-T3517 with CM-T3517
  */
diff --git a/arch/arm/boot/dts/omap3-sbc-t3530.dts b/arch/arm/boot/dts/omap3-sbc-t3530.dts
index 834bc786cd12..ae96002abb3b 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3530.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3530.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Suppport for CompuLab SBC-T3530 with CM-T3530
  */
diff --git a/arch/arm/boot/dts/omap3-sbc-t3730.dts b/arch/arm/boot/dts/omap3-sbc-t3730.dts
index 73c7bf4a4a08..7de6df16fc17 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3730.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3730.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Suppport for CompuLab SBC-T3730 with CM-T3730
  */
diff --git a/arch/arm/boot/dts/omap5-cm-t54.dts b/arch/arm/boot/dts/omap5-cm-t54.dts
index 552a5c4c5942..5b172a04b6f1 100644
--- a/arch/arm/boot/dts/omap5-cm-t54.dts
+++ b/arch/arm/boot/dts/omap5-cm-t54.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for CompuLab CM-T54
  */
diff --git a/arch/arm/boot/dts/omap5-sbc-t54.dts b/arch/arm/boot/dts/omap5-sbc-t54.dts
index 7b8810d13257..657df46251c2 100644
--- a/arch/arm/boot/dts/omap5-sbc-t54.dts
+++ b/arch/arm/boot/dts/omap5-sbc-t54.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Suppport for CompuLab CM-T54 on SB-T54 baseboard
  */
diff --git a/arch/arm/boot/dts/pxa27x.dtsi b/arch/arm/boot/dts/pxa27x.dtsi
index 5f1d6da02a4c..747f750f675d 100644
--- a/arch/arm/boot/dts/pxa27x.dtsi
+++ b/arch/arm/boot/dts/pxa27x.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* The pxa3xx skeleton simply augments the 2xx version */
 #include "pxa2xx.dtsi"
 #include "dt-bindings/clock/pxa-clock.h"
diff --git a/arch/arm/boot/dts/pxa3xx.dtsi b/arch/arm/boot/dts/pxa3xx.dtsi
index 7a0cc4ea819a..55c75b67351c 100644
--- a/arch/arm/boot/dts/pxa3xx.dtsi
+++ b/arch/arm/boot/dts/pxa3xx.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* The pxa3xx skeleton simply augments the 2xx version */
 #include "pxa2xx.dtsi"
 
diff --git a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval-pins.dtsi b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval-pins.dtsi
index a3efb9704fcd..8df73156b73a 100644
--- a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval-pins.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval-pins.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 &tlmm_pinmux {
 	card_detect: card-detect {
 		mux {
diff --git a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
index f245064f320e..76b56eafaab9 100644
--- a/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-arrow-sd-600eval.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8064-v2.0.dtsi"
 #include "qcom-apq8064-arrow-sd-600eval-pins.dtsi"
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts b/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
index 3483a66e44c1..a701d4bac320 100644
--- a/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-asus-nexus7-flo.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8064-v2.0.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
index 5b151e425530..b818ebce0978 100644
--- a/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-cm-qs600.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8064-v2.0.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
diff --git a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
index 053b5bdd7808..83aaf4a74398 100644
--- a/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-ifc6410.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8064-v2.0.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
diff --git a/arch/arm/boot/dts/qcom-apq8064-pins.dtsi b/arch/arm/boot/dts/qcom-apq8064-pins.dtsi
index 173ab7c299ce..cbe42c4153a0 100644
--- a/arch/arm/boot/dts/qcom-apq8064-pins.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064-pins.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 &tlmm_pinmux {
 	sdc4_gpios: sdc4-gpios {
diff --git a/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts b/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts
index 88a9aff41e2f..8bf488fb86ad 100644
--- a/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts
+++ b/arch/arm/boot/dts/qcom-apq8064-sony-xperia-yuga.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8064-v2.0.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/qcom-apq8064-v2.0.dtsi b/arch/arm/boot/dts/qcom-apq8064-v2.0.dtsi
index 935c3945fc5e..46ed48f0244f 100644
--- a/arch/arm/boot/dts/qcom-apq8064-v2.0.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064-v2.0.dtsi
@@ -1 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8064.dtsi"
diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index f3db185a6809..6089c8d56cd5 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "skeleton.dtsi"
diff --git a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
index 32f3b81f609c..244f04e19c9d 100644
--- a/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
+++ b/arch/arm/boot/dts/qcom-apq8074-dragonboard.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-msm8974.dtsi"
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
diff --git a/arch/arm/boot/dts/qcom-apq8084-ifc6540.dts b/arch/arm/boot/dts/qcom-apq8084-ifc6540.dts
index 2052b84a77c6..44cd72f1b1be 100644
--- a/arch/arm/boot/dts/qcom-apq8084-ifc6540.dts
+++ b/arch/arm/boot/dts/qcom-apq8084-ifc6540.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8084.dtsi"
 #include "qcom-pma8084.dtsi"
 
diff --git a/arch/arm/boot/dts/qcom-apq8084-mtp.dts b/arch/arm/boot/dts/qcom-apq8084-mtp.dts
index d174d15bcf70..c6b6680248a6 100644
--- a/arch/arm/boot/dts/qcom-apq8084-mtp.dts
+++ b/arch/arm/boot/dts/qcom-apq8084-mtp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-apq8084.dtsi"
 #include "qcom-pma8084.dtsi"
 
diff --git a/arch/arm/boot/dts/qcom-apq8084.dtsi b/arch/arm/boot/dts/qcom-apq8084.dtsi
index 80d48867107f..0e1e98707e3f 100644
--- a/arch/arm/boot/dts/qcom-apq8084.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8084.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "skeleton.dtsi"
diff --git a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
index 348503d1a1c1..bcf53e37ed93 100644
--- a/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
+++ b/arch/arm/boot/dts/qcom-ipq8064-ap148.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-ipq8064-v1.0.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/qcom-ipq8064-v1.0.dtsi b/arch/arm/boot/dts/qcom-ipq8064-v1.0.dtsi
index 7093b075e408..e1181194e8d3 100644
--- a/arch/arm/boot/dts/qcom-ipq8064-v1.0.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq8064-v1.0.dtsi
@@ -1 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-ipq8064.dtsi"
diff --git a/arch/arm/boot/dts/qcom-ipq8064.dtsi b/arch/arm/boot/dts/qcom-ipq8064.dtsi
index f1fbffe59b93..1e0a3b446f7a 100644
--- a/arch/arm/boot/dts/qcom-ipq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-ipq8064.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "skeleton.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8660-surf.dts b/arch/arm/boot/dts/qcom-msm8660-surf.dts
index 1adc04978a47..f01a11b18d6a 100644
--- a/arch/arm/boot/dts/qcom-msm8660-surf.dts
+++ b/arch/arm/boot/dts/qcom-msm8660-surf.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/input/input.h>
 
 #include "qcom-msm8660.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8660.dtsi b/arch/arm/boot/dts/qcom-msm8660.dtsi
index 1b5d31b33b5e..221c4584552f 100644
--- a/arch/arm/boot/dts/qcom-msm8660.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8660.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "skeleton.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8960-cdp.dts b/arch/arm/boot/dts/qcom-msm8960-cdp.dts
index b72a55462caf..82d5d8267adf 100644
--- a/arch/arm/boot/dts/qcom-msm8960-cdp.dts
+++ b/arch/arm/boot/dts/qcom-msm8960-cdp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/input/input.h>
 
 #include "qcom-msm8960.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom-msm8960.dtsi
index 288f56e0ccf5..1733d8f40ab1 100644
--- a/arch/arm/boot/dts/qcom-msm8960.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8960.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "skeleton.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
index 382bcc3231a9..4dc0b347b1ee 100644
--- a/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-lge-nexus5-hammerhead.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-msm8974.dtsi"
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts b/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts
index 50966378f9e4..450b8321e0a6 100644
--- a/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts
+++ b/arch/arm/boot/dts/qcom-msm8974-sony-xperia-honami.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qcom-msm8974.dtsi"
 #include "qcom-pm8841.dtsi"
 #include "qcom-pm8941.dtsi"
diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi b/arch/arm/boot/dts/qcom-msm8974.dtsi
index a39207625354..33002fed8cc3 100644
--- a/arch/arm/boot/dts/qcom-msm8974.dtsi
+++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
diff --git a/arch/arm/boot/dts/qcom-pm8841.dtsi b/arch/arm/boot/dts/qcom-pm8841.dtsi
index 0512f645922e..2fd59c440903 100644
--- a/arch/arm/boot/dts/qcom-pm8841.dtsi
+++ b/arch/arm/boot/dts/qcom-pm8841.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
 
diff --git a/arch/arm/boot/dts/qcom-pm8941.dtsi b/arch/arm/boot/dts/qcom-pm8941.dtsi
index 3fc9f34f45bb..1d5ef55c7ee5 100644
--- a/arch/arm/boot/dts/qcom-pm8941.dtsi
+++ b/arch/arm/boot/dts/qcom-pm8941.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/iio/qcom,spmi-vadc.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
diff --git a/arch/arm/boot/dts/qcom-pma8084.dtsi b/arch/arm/boot/dts/qcom-pma8084.dtsi
index 82d258094156..aac7e73b6872 100644
--- a/arch/arm/boot/dts/qcom-pma8084.dtsi
+++ b/arch/arm/boot/dts/qcom-pma8084.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/iio/qcom,spmi-vadc.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
diff --git a/arch/arm/boot/dts/sama5d2-pinfunc.h b/arch/arm/boot/dts/sama5d2-pinfunc.h
index 8a394f336003..e57191fb83de 100644
--- a/arch/arm/boot/dts/sama5d2-pinfunc.h
+++ b/arch/arm/boot/dts/sama5d2-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define PINMUX_PIN(no, func, ioset) \
 (((no) & 0xffff) | (((func) & 0xf) << 16) | (((ioset) & 0xff) << 20))
 
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 38d2216c7ead..b1a26b42d190 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi
@@ -1430,6 +1430,7 @@
 				atmel,min-sample-rate-hz = <200000>;
 				atmel,max-sample-rate-hz = <20000000>;
 				atmel,startup-time-ms = <4>;
+				atmel,trigger-edge-type = <IRQ_TYPE_EDGE_RISING>;
 				status = "disabled";
 			};
 
diff --git a/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi b/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi
index 9657a5cbc3ad..dbdda36179ee 100644
--- a/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi
+++ b/arch/arm/boot/dts/samsung_k3pe0e000b.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Timings and Geometry for Samsung K3PE0E000B memory part
  */
diff --git a/arch/arm/boot/dts/skeleton.dtsi b/arch/arm/boot/dts/skeleton.dtsi
index 28b81d60b407..34eda68d9ea2 100644
--- a/arch/arm/boot/dts/skeleton.dtsi
+++ b/arch/arm/boot/dts/skeleton.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file is deprecated, and will be removed once existing users have been
  * updated. New dts{,i} files should *not* include skeleton.dtsi, and should
diff --git a/arch/arm/boot/dts/skeleton64.dtsi b/arch/arm/boot/dts/skeleton64.dtsi
index b5d7f36f33de..54e637752b9d 100644
--- a/arch/arm/boot/dts/skeleton64.dtsi
+++ b/arch/arm/boot/dts/skeleton64.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Skeleton device tree in the 64 bits version; the bare minimum
  * needed to boot; just include and add a compatible value.  The
diff --git a/arch/arm/boot/dts/st-pincfg.h b/arch/arm/boot/dts/st-pincfg.h
index 4851c387d52d..d80551202292 100644
--- a/arch/arm/boot/dts/st-pincfg.h
+++ b/arch/arm/boot/dts/st-pincfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ST_PINCFG_H_
 #define _ST_PINCFG_H_
 
diff --git a/arch/arm/boot/dts/ste-nomadik-nhk15.dts b/arch/arm/boot/dts/ste-nomadik-nhk15.dts
index 1ec46a794a4d..12afdc7467e7 100644
--- a/arch/arm/boot/dts/ste-nomadik-nhk15.dts
+++ b/arch/arm/boot/dts/ste-nomadik-nhk15.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree for the ST-Ericsson Nomadik S8815 board
  * Produced by Calao Systems
diff --git a/arch/arm/boot/dts/ste-nomadik-s8815.dts b/arch/arm/boot/dts/ste-nomadik-s8815.dts
index 789329030658..4445446fa828 100644
--- a/arch/arm/boot/dts/ste-nomadik-s8815.dts
+++ b/arch/arm/boot/dts/ste-nomadik-s8815.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree for the ST-Ericsson Nomadik S8815 board
  * Produced by Calao Systems
diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index adb1c0998b81..68aab50a73ab 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree for the ST-Ericsson Nomadik 8815 STn8815 SoC
  */
diff --git a/arch/arm/boot/dts/ste-u300.dts b/arch/arm/boot/dts/ste-u300.dts
index 2f5107ffeef0..62ecb6a2fa39 100644
--- a/arch/arm/boot/dts/ste-u300.dts
+++ b/arch/arm/boot/dts/ste-u300.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device Tree for the ST-Ericsson U300 Machine and SoC
  */
diff --git a/arch/arm/boot/dts/stm32429i-eval.dts b/arch/arm/boot/dts/stm32429i-eval.dts
index 97b1c2321ba9..293ecb957227 100644
--- a/arch/arm/boot/dts/stm32429i-eval.dts
+++ b/arch/arm/boot/dts/stm32429i-eval.dts
@@ -47,6 +47,7 @@
 
 /dts-v1/;
 #include "stm32f429.dtsi"
+#include "stm32f429-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/gpio/gpio.h>
 
@@ -202,10 +203,8 @@
 	stmpe1600: stmpe1600@42 {
 		compatible = "st,stmpe1600";
 		reg = <0x42>;
-		irq-gpio = <&gpioi 8 0>;
-		irq-trigger = <3>;
 		interrupts = <8 3>;
-		interrupt-parent = <&exti>;
+		interrupt-parent = <&gpioi>;
 		interrupt-controller;
 		wakeup-source;
 
diff --git a/arch/arm/boot/dts/stm32f4-pinctrl.dtsi b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
new file mode 100644
index 000000000000..7f3560c0211d
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f4-pinctrl.dtsi
@@ -0,0 +1,343 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
+#include <dt-bindings/mfd/stm32f4-rcc.h>
+
+/ {
+	soc {
+		pinctrl: pin-controller {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0 0x40020000 0x3000>;
+			interrupt-parent = <&exti>;
+			st,syscfg = <&syscfg 0x8>;
+			pins-are-numbered;
+
+			gpioa: gpio@40020000 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x0 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOA)>;
+				st,bank-name = "GPIOA";
+			};
+
+			gpiob: gpio@40020400 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x400 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOB)>;
+				st,bank-name = "GPIOB";
+			};
+
+			gpioc: gpio@40020800 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x800 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOC)>;
+				st,bank-name = "GPIOC";
+			};
+
+			gpiod: gpio@40020c00 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0xc00 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOD)>;
+				st,bank-name = "GPIOD";
+			};
+
+			gpioe: gpio@40021000 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x1000 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOE)>;
+				st,bank-name = "GPIOE";
+			};
+
+			gpiof: gpio@40021400 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x1400 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOF)>;
+				st,bank-name = "GPIOF";
+			};
+
+			gpiog: gpio@40021800 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x1800 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOG)>;
+				st,bank-name = "GPIOG";
+			};
+
+			gpioh: gpio@40021c00 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x1c00 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOH)>;
+				st,bank-name = "GPIOH";
+			};
+
+			gpioi: gpio@40022000 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x2000 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOI)>;
+				st,bank-name = "GPIOI";
+			};
+
+			gpioj: gpio@40022400 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x2400 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOJ)>;
+				st,bank-name = "GPIOJ";
+			};
+
+			gpiok: gpio@40022800 {
+				gpio-controller;
+				#gpio-cells = <2>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				reg = <0x2800 0x400>;
+				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOK)>;
+				st,bank-name = "GPIOK";
+			};
+
+			usart1_pins_a: usart1@0 {
+				pins1 {
+					pinmux = <STM32F429_PA9_FUNC_USART1_TX>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <0>;
+				};
+				pins2 {
+					pinmux = <STM32F429_PA10_FUNC_USART1_RX>;
+					bias-disable;
+				};
+			};
+
+			usart3_pins_a: usart3@0 {
+				pins1 {
+					pinmux = <STM32F429_PB10_FUNC_USART3_TX>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <0>;
+				};
+				pins2 {
+					pinmux = <STM32F429_PB11_FUNC_USART3_RX>;
+					bias-disable;
+				};
+			};
+
+			usbotg_fs_pins_a: usbotg_fs@0 {
+				pins {
+					pinmux = <STM32F429_PA10_FUNC_OTG_FS_ID>,
+						 <STM32F429_PA11_FUNC_OTG_FS_DM>,
+						 <STM32F429_PA12_FUNC_OTG_FS_DP>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <2>;
+				};
+			};
+
+			usbotg_fs_pins_b: usbotg_fs@1 {
+				pins {
+					pinmux = <STM32F429_PB12_FUNC_OTG_HS_ID>,
+						 <STM32F429_PB14_FUNC_OTG_HS_DM>,
+						 <STM32F429_PB15_FUNC_OTG_HS_DP>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <2>;
+				};
+			};
+
+			usbotg_hs_pins_a: usbotg_hs@0 {
+				pins {
+					pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
+						 <STM32F429_PI11_FUNC_OTG_HS_ULPI_DIR>,
+						 <STM32F429_PC0_FUNC_OTG_HS_ULPI_STP>,
+						 <STM32F429_PA5_FUNC_OTG_HS_ULPI_CK>,
+						 <STM32F429_PA3_FUNC_OTG_HS_ULPI_D0>,
+						 <STM32F429_PB0_FUNC_OTG_HS_ULPI_D1>,
+						 <STM32F429_PB1_FUNC_OTG_HS_ULPI_D2>,
+						 <STM32F429_PB10_FUNC_OTG_HS_ULPI_D3>,
+						 <STM32F429_PB11_FUNC_OTG_HS_ULPI_D4>,
+						 <STM32F429_PB12_FUNC_OTG_HS_ULPI_D5>,
+						 <STM32F429_PB13_FUNC_OTG_HS_ULPI_D6>,
+						 <STM32F429_PB5_FUNC_OTG_HS_ULPI_D7>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <2>;
+				};
+			};
+
+			ethernet_mii: mii@0 {
+				pins {
+					pinmux = <STM32F429_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>,
+						 <STM32F429_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>,
+						 <STM32F429_PC2_FUNC_ETH_MII_TXD2>,
+						 <STM32F429_PB8_FUNC_ETH_MII_TXD3>,
+						 <STM32F429_PC3_FUNC_ETH_MII_TX_CLK>,
+						 <STM32F429_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>,
+						 <STM32F429_PA2_FUNC_ETH_MDIO>,
+						 <STM32F429_PC1_FUNC_ETH_MDC>,
+						 <STM32F429_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>,
+						 <STM32F429_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>,
+						 <STM32F429_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>,
+						 <STM32F429_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>,
+						 <STM32F429_PH6_FUNC_ETH_MII_RXD2>,
+						 <STM32F429_PH7_FUNC_ETH_MII_RXD3>;
+					slew-rate = <2>;
+				};
+			};
+
+			adc3_in8_pin: adc@200 {
+				pins {
+					pinmux = <STM32F429_PF10_FUNC_ANALOG>;
+				};
+			};
+
+			pwm1_pins: pwm@1 {
+				pins {
+					pinmux = <STM32F429_PA8_FUNC_TIM1_CH1>,
+						 <STM32F429_PB13_FUNC_TIM1_CH1N>,
+						 <STM32F429_PB12_FUNC_TIM1_BKIN>;
+				};
+			};
+
+			pwm3_pins: pwm@3 {
+				pins {
+					pinmux = <STM32F429_PB4_FUNC_TIM3_CH1>,
+						 <STM32F429_PB5_FUNC_TIM3_CH2>;
+				};
+			};
+
+			i2c1_pins: i2c1@0 {
+				pins {
+					pinmux = <STM32F429_PB9_FUNC_I2C1_SDA>,
+						 <STM32F429_PB6_FUNC_I2C1_SCL>;
+					bias-disable;
+					drive-open-drain;
+					slew-rate = <3>;
+				};
+			};
+
+			ltdc_pins: ltdc@0 {
+				pins {
+					pinmux = <STM32F429_PI12_FUNC_LCD_HSYNC>,
+						 <STM32F429_PI13_FUNC_LCD_VSYNC>,
+						 <STM32F429_PI14_FUNC_LCD_CLK>,
+						 <STM32F429_PI15_FUNC_LCD_R0>,
+						 <STM32F429_PJ0_FUNC_LCD_R1>,
+						 <STM32F429_PJ1_FUNC_LCD_R2>,
+						 <STM32F429_PJ2_FUNC_LCD_R3>,
+						 <STM32F429_PJ3_FUNC_LCD_R4>,
+						 <STM32F429_PJ4_FUNC_LCD_R5>,
+						 <STM32F429_PJ5_FUNC_LCD_R6>,
+						 <STM32F429_PJ6_FUNC_LCD_R7>,
+						 <STM32F429_PJ7_FUNC_LCD_G0>,
+						 <STM32F429_PJ8_FUNC_LCD_G1>,
+						 <STM32F429_PJ9_FUNC_LCD_G2>,
+						 <STM32F429_PJ10_FUNC_LCD_G3>,
+						 <STM32F429_PJ11_FUNC_LCD_G4>,
+						 <STM32F429_PJ12_FUNC_LCD_B0>,
+						 <STM32F429_PJ13_FUNC_LCD_B1>,
+						 <STM32F429_PJ14_FUNC_LCD_B2>,
+						 <STM32F429_PJ15_FUNC_LCD_B3>,
+						 <STM32F429_PK0_FUNC_LCD_G5>,
+						 <STM32F429_PK1_FUNC_LCD_G6>,
+						 <STM32F429_PK2_FUNC_LCD_G7>,
+						 <STM32F429_PK3_FUNC_LCD_B4>,
+						 <STM32F429_PK4_FUNC_LCD_B5>,
+						 <STM32F429_PK5_FUNC_LCD_B6>,
+						 <STM32F429_PK6_FUNC_LCD_B7>,
+						 <STM32F429_PK7_FUNC_LCD_DE>;
+					slew-rate = <2>;
+				};
+			};
+
+			dcmi_pins: dcmi@0 {
+				pins {
+					pinmux = <STM32F429_PA4_FUNC_DCMI_HSYNC>,
+						 <STM32F429_PB7_FUNC_DCMI_VSYNC>,
+						 <STM32F429_PA6_FUNC_DCMI_PIXCLK>,
+						 <STM32F429_PC6_FUNC_DCMI_D0>,
+						 <STM32F429_PC7_FUNC_DCMI_D1>,
+						 <STM32F429_PC8_FUNC_DCMI_D2>,
+						 <STM32F429_PC9_FUNC_DCMI_D3>,
+						 <STM32F429_PC11_FUNC_DCMI_D4>,
+						 <STM32F429_PD3_FUNC_DCMI_D5>,
+						 <STM32F429_PB8_FUNC_DCMI_D6>,
+						 <STM32F429_PE6_FUNC_DCMI_D7>,
+						 <STM32F429_PC10_FUNC_DCMI_D8>,
+						 <STM32F429_PC12_FUNC_DCMI_D9>,
+						 <STM32F429_PD6_FUNC_DCMI_D10>,
+						 <STM32F429_PD2_FUNC_DCMI_D11>;
+					bias-disable;
+					drive-push-pull;
+					slew-rate = <3>;
+				};
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stm32f429-disco.dts b/arch/arm/boot/dts/stm32f429-disco.dts
index c66d617e4245..5ceb2cf3777f 100644
--- a/arch/arm/boot/dts/stm32f429-disco.dts
+++ b/arch/arm/boot/dts/stm32f429-disco.dts
@@ -47,6 +47,7 @@
 
 /dts-v1/;
 #include "stm32f429.dtsi"
+#include "stm32f429-pinctrl.dtsi"
 #include <dt-bindings/input/input.h>
 
 / {
diff --git a/arch/arm/boot/dts/stm32f429-pinctrl.dtsi b/arch/arm/boot/dts/stm32f429-pinctrl.dtsi
new file mode 100644
index 000000000000..3e7a17d9112e
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f429-pinctrl.dtsi
@@ -0,0 +1,95 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "stm32f4-pinctrl.dtsi"
+
+/ {
+	soc {
+		pinctrl: pin-controller {
+			compatible = "st,stm32f429-pinctrl";
+
+			gpioa: gpio@40020000 {
+				gpio-ranges = <&pinctrl 0 0 16>;
+			};
+
+			gpiob: gpio@40020400 {
+				gpio-ranges = <&pinctrl 0 16 16>;
+			};
+
+			gpioc: gpio@40020800 {
+				gpio-ranges = <&pinctrl 0 32 16>;
+			};
+
+			gpiod: gpio@40020c00 {
+				gpio-ranges = <&pinctrl 0 48 16>;
+			};
+
+			gpioe: gpio@40021000 {
+				gpio-ranges = <&pinctrl 0 64 16>;
+			};
+
+			gpiof: gpio@40021400 {
+				gpio-ranges = <&pinctrl 0 80 16>;
+			};
+
+			gpiog: gpio@40021800 {
+				gpio-ranges = <&pinctrl 0 96 16>;
+			};
+
+			gpioh: gpio@40021c00 {
+				gpio-ranges = <&pinctrl 0 112 16>;
+			};
+
+			gpioi: gpio@40022000 {
+				gpio-ranges = <&pinctrl 0 128 16>;
+			};
+
+			gpioj: gpio@40022400 {
+				gpio-ranges = <&pinctrl 0 144 16>;
+			};
+
+			gpiok: gpio@40022800 {
+				gpio-ranges = <&pinctrl 0 160 8>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stm32f429.dtsi b/arch/arm/boot/dts/stm32f429.dtsi
index dd7e99b1f43b..10099df8b73e 100644
--- a/arch/arm/boot/dts/stm32f429.dtsi
+++ b/arch/arm/boot/dts/stm32f429.dtsi
@@ -47,7 +47,6 @@
 
 #include "skeleton.dtsi"
 #include "armv7-m.dtsi"
-#include <dt-bindings/pinctrl/stm32f429-pinfunc.h>
 #include <dt-bindings/clock/stm32fx-clock.h>
 #include <dt-bindings/mfd/stm32f4-rcc.h>
 
@@ -315,7 +314,7 @@
 		};
 
 		usart2: serial@40004400 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART2)>;
@@ -323,7 +322,7 @@
 		};
 
 		usart3: serial@40004800 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40004800 0x400>;
 			interrupts = <39>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART3)>;
@@ -387,7 +386,7 @@
 		};
 
 		usart7: serial@40007800 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40007800 0x400>;
 			interrupts = <82>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART7)>;
@@ -395,7 +394,7 @@
 		};
 
 		usart8: serial@40007c00 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40007c00 0x400>;
 			interrupts = <83>;
 			clocks = <&rcc 0 STM32F4_APB1_CLOCK(UART8)>;
@@ -445,7 +444,7 @@
 		};
 
 		usart1: serial@40011000 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
 			clocks = <&rcc 0 STM32F4_APB2_CLOCK(USART1)>;
@@ -456,7 +455,7 @@
 		};
 
 		usart6: serial@40011400 {
-			compatible = "st,stm32-usart", "st,stm32-uart";
+			compatible = "st,stm32-uart";
 			reg = <0x40011400 0x400>;
 			interrupts = <71>;
 			clocks = <&rcc 0 STM32F4_APB2_CLOCK(USART6)>;
@@ -591,302 +590,6 @@
 			status = "disabled";
 		};
 
-		pinctrl: pin-controller {
-			#address-cells = <1>;
-			#size-cells = <1>;
-			compatible = "st,stm32f429-pinctrl";
-			ranges = <0 0x40020000 0x3000>;
-			interrupt-parent = <&exti>;
-			st,syscfg = <&syscfg 0x8>;
-			pins-are-numbered;
-
-			gpioa: gpio@40020000 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x0 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOA)>;
-				st,bank-name = "GPIOA";
-			};
-
-			gpiob: gpio@40020400 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x400 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOB)>;
-				st,bank-name = "GPIOB";
-			};
-
-			gpioc: gpio@40020800 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x800 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOC)>;
-				st,bank-name = "GPIOC";
-			};
-
-			gpiod: gpio@40020c00 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0xc00 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOD)>;
-				st,bank-name = "GPIOD";
-			};
-
-			gpioe: gpio@40021000 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x1000 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOE)>;
-				st,bank-name = "GPIOE";
-			};
-
-			gpiof: gpio@40021400 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x1400 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOF)>;
-				st,bank-name = "GPIOF";
-			};
-
-			gpiog: gpio@40021800 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x1800 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOG)>;
-				st,bank-name = "GPIOG";
-			};
-
-			gpioh: gpio@40021c00 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x1c00 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOH)>;
-				st,bank-name = "GPIOH";
-			};
-
-			gpioi: gpio@40022000 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x2000 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOI)>;
-				st,bank-name = "GPIOI";
-			};
-
-			gpioj: gpio@40022400 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x2400 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOJ)>;
-				st,bank-name = "GPIOJ";
-			};
-
-			gpiok: gpio@40022800 {
-				gpio-controller;
-				#gpio-cells = <2>;
-				interrupt-controller;
-				#interrupt-cells = <2>;
-				reg = <0x2800 0x400>;
-				clocks = <&rcc 0 STM32F4_AHB1_CLOCK(GPIOK)>;
-				st,bank-name = "GPIOK";
-			};
-
-			usart1_pins_a: usart1@0 {
-				pins1 {
-					pinmux = <STM32F429_PA9_FUNC_USART1_TX>;
-					bias-disable;
-					drive-push-pull;
-					slew-rate = <0>;
-				};
-				pins2 {
-					pinmux = <STM32F429_PA10_FUNC_USART1_RX>;
-					bias-disable;
-				};
-			};
-
-			usart3_pins_a: usart3@0 {
-				pins1 {
-					pinmux = <STM32F429_PB10_FUNC_USART3_TX>;
-					bias-disable;
-					drive-push-pull;
-					slew-rate = <0>;
-				};
-				pins2 {
-					pinmux = <STM32F429_PB11_FUNC_USART3_RX>;
-					bias-disable;
-				};
-			};
-
-			usbotg_fs_pins_a: usbotg_fs@0 {
-				pins {
-					pinmux = <STM32F429_PA10_FUNC_OTG_FS_ID>,
-						 <STM32F429_PA11_FUNC_OTG_FS_DM>,
-						 <STM32F429_PA12_FUNC_OTG_FS_DP>;
-					bias-disable;
-					drive-push-pull;
-					slew-rate = <2>;
-				};
-			};
-
-			usbotg_fs_pins_b: usbotg_fs@1 {
-				pins {
-					pinmux = <STM32F429_PB12_FUNC_OTG_HS_ID>,
-						 <STM32F429_PB14_FUNC_OTG_HS_DM>,
-						 <STM32F429_PB15_FUNC_OTG_HS_DP>;
-					bias-disable;
-					drive-push-pull;
-					slew-rate = <2>;
-				};
-			};
-
-			usbotg_hs_pins_a: usbotg_hs@0 {
-				pins {
-					pinmux = <STM32F429_PH4_FUNC_OTG_HS_ULPI_NXT>,
-						 <STM32F429_PI11_FUNC_OTG_HS_ULPI_DIR>,
-						 <STM32F429_PC0_FUNC_OTG_HS_ULPI_STP>,
-						 <STM32F429_PA5_FUNC_OTG_HS_ULPI_CK>,
-						 <STM32F429_PA3_FUNC_OTG_HS_ULPI_D0>,
-						 <STM32F429_PB0_FUNC_OTG_HS_ULPI_D1>,
-						 <STM32F429_PB1_FUNC_OTG_HS_ULPI_D2>,
-						 <STM32F429_PB10_FUNC_OTG_HS_ULPI_D3>,
-						 <STM32F429_PB11_FUNC_OTG_HS_ULPI_D4>,
-						 <STM32F429_PB12_FUNC_OTG_HS_ULPI_D5>,
-						 <STM32F429_PB13_FUNC_OTG_HS_ULPI_D6>,
-						 <STM32F429_PB5_FUNC_OTG_HS_ULPI_D7>;
-					bias-disable;
-					drive-push-pull;
-					slew-rate = <2>;
-				};
-			};
-
-			ethernet_mii: mii@0 {
-				pins {
-					pinmux = <STM32F429_PG13_FUNC_ETH_MII_TXD0_ETH_RMII_TXD0>,
-						 <STM32F429_PG14_FUNC_ETH_MII_TXD1_ETH_RMII_TXD1>,
-						 <STM32F429_PC2_FUNC_ETH_MII_TXD2>,
-						 <STM32F429_PB8_FUNC_ETH_MII_TXD3>,
-						 <STM32F429_PC3_FUNC_ETH_MII_TX_CLK>,
-						 <STM32F429_PG11_FUNC_ETH_MII_TX_EN_ETH_RMII_TX_EN>,
-						 <STM32F429_PA2_FUNC_ETH_MDIO>,
-						 <STM32F429_PC1_FUNC_ETH_MDC>,
-						 <STM32F429_PA1_FUNC_ETH_MII_RX_CLK_ETH_RMII_REF_CLK>,
-						 <STM32F429_PA7_FUNC_ETH_MII_RX_DV_ETH_RMII_CRS_DV>,
-						 <STM32F429_PC4_FUNC_ETH_MII_RXD0_ETH_RMII_RXD0>,
-						 <STM32F429_PC5_FUNC_ETH_MII_RXD1_ETH_RMII_RXD1>,
-						 <STM32F429_PH6_FUNC_ETH_MII_RXD2>,
-						 <STM32F429_PH7_FUNC_ETH_MII_RXD3>;
-					slew-rate = <2>;
-				};
-			};
-
-			adc3_in8_pin: adc@200 {
-				pins {
-					pinmux = <STM32F429_PF10_FUNC_ANALOG>;
-				};
-			};
-
-			pwm1_pins: pwm@1 {
-				pins {
-					pinmux = <STM32F429_PA8_FUNC_TIM1_CH1>,
-						 <STM32F429_PB13_FUNC_TIM1_CH1N>,
-						 <STM32F429_PB12_FUNC_TIM1_BKIN>;
-				};
-			};
-
-			pwm3_pins: pwm@3 {
-				pins {
-					pinmux = <STM32F429_PB4_FUNC_TIM3_CH1>,
-						 <STM32F429_PB5_FUNC_TIM3_CH2>;
-				};
-			};
-
-			i2c1_pins: i2c1@0 {
-				pins {
-					pinmux = <STM32F429_PB9_FUNC_I2C1_SDA>,
-						 <STM32F429_PB6_FUNC_I2C1_SCL>;
-					bias-disable;
-					drive-open-drain;
-					slew-rate = <3>;
-				};
-			};
-
-			ltdc_pins: ltdc@0 {
-				pins {
-					pinmux = <STM32F429_PI12_FUNC_LCD_HSYNC>,
-						 <STM32F429_PI13_FUNC_LCD_VSYNC>,
-						 <STM32F429_PI14_FUNC_LCD_CLK>,
-						 <STM32F429_PI15_FUNC_LCD_R0>,
-						 <STM32F429_PJ0_FUNC_LCD_R1>,
-						 <STM32F429_PJ1_FUNC_LCD_R2>,
-						 <STM32F429_PJ2_FUNC_LCD_R3>,
-						 <STM32F429_PJ3_FUNC_LCD_R4>,
-						 <STM32F429_PJ4_FUNC_LCD_R5>,
-						 <STM32F429_PJ5_FUNC_LCD_R6>,
-						 <STM32F429_PJ6_FUNC_LCD_R7>,
-						 <STM32F429_PJ7_FUNC_LCD_G0>,
-						 <STM32F429_PJ8_FUNC_LCD_G1>,
-						 <STM32F429_PJ9_FUNC_LCD_G2>,
-						 <STM32F429_PJ10_FUNC_LCD_G3>,
-						 <STM32F429_PJ11_FUNC_LCD_G4>,
-						 <STM32F429_PJ12_FUNC_LCD_B0>,
-						 <STM32F429_PJ13_FUNC_LCD_B1>,
-						 <STM32F429_PJ14_FUNC_LCD_B2>,
-						 <STM32F429_PJ15_FUNC_LCD_B3>,
-						 <STM32F429_PK0_FUNC_LCD_G5>,
-						 <STM32F429_PK1_FUNC_LCD_G6>,
-						 <STM32F429_PK2_FUNC_LCD_G7>,
-						 <STM32F429_PK3_FUNC_LCD_B4>,
-						 <STM32F429_PK4_FUNC_LCD_B5>,
-						 <STM32F429_PK5_FUNC_LCD_B6>,
-						 <STM32F429_PK6_FUNC_LCD_B7>,
-						 <STM32F429_PK7_FUNC_LCD_DE>;
-					slew-rate = <2>;
-				};
-			};
-
-			dcmi_pins: dcmi@0 {
-				pins {
-					pinmux = <STM32F429_PA4_FUNC_DCMI_HSYNC>,
-						 <STM32F429_PB7_FUNC_DCMI_VSYNC>,
-						 <STM32F429_PA6_FUNC_DCMI_PIXCLK>,
-						 <STM32F429_PC6_FUNC_DCMI_D0>,
-						 <STM32F429_PC7_FUNC_DCMI_D1>,
-						 <STM32F429_PC8_FUNC_DCMI_D2>,
-						 <STM32F429_PC9_FUNC_DCMI_D3>,
-						 <STM32F429_PC11_FUNC_DCMI_D4>,
-						 <STM32F429_PD3_FUNC_DCMI_D5>,
-						 <STM32F429_PB8_FUNC_DCMI_D6>,
-						 <STM32F429_PE6_FUNC_DCMI_D7>,
-						 <STM32F429_PC10_FUNC_DCMI_D8>,
-						 <STM32F429_PC12_FUNC_DCMI_D9>,
-						 <STM32F429_PD6_FUNC_DCMI_D10>,
-						 <STM32F429_PD2_FUNC_DCMI_D11>;
-					bias-disable;
-					drive-push-pull;
-					slew-rate = <3>;
-				};
-			};
-		};
-
 		crc: crc@40023000 {
 			compatible = "st,stm32f4-crc";
 			reg = <0x40023000 0x400>;
diff --git a/arch/arm/boot/dts/stm32f469-disco.dts b/arch/arm/boot/dts/stm32f469-disco.dts
index 6ae1f037f3f0..c18acbe4cf4e 100644
--- a/arch/arm/boot/dts/stm32f469-disco.dts
+++ b/arch/arm/boot/dts/stm32f469-disco.dts
@@ -47,6 +47,7 @@
 
 /dts-v1/;
 #include "stm32f429.dtsi"
+#include "stm32f469-pinctrl.dtsi"
 
 / {
 	model = "STMicroelectronics STM32F469i-DISCO board";
diff --git a/arch/arm/boot/dts/stm32f469-pinctrl.dtsi b/arch/arm/boot/dts/stm32f469-pinctrl.dtsi
new file mode 100644
index 000000000000..fff542662eea
--- /dev/null
+++ b/arch/arm/boot/dts/stm32f469-pinctrl.dtsi
@@ -0,0 +1,96 @@
+/*
+ * Copyright 2017 - Alexandre Torgue <alexandre.torgue@st.com>
+ *
+ * This file is dual-licensed: you can use it either under the terms
+ * of the GPL or the X11 license, at your option. Note that this dual
+ * licensing only applies to this file, and not this project as a
+ * whole.
+ *
+ *  a) This file is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of the
+ *     License, or (at your option) any later version.
+ *
+ *     This file is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ * Or, alternatively,
+ *
+ *  b) Permission is hereby granted, free of charge, to any person
+ *     obtaining a copy of this software and associated documentation
+ *     files (the "Software"), to deal in the Software without
+ *     restriction, including without limitation the rights to use,
+ *     copy, modify, merge, publish, distribute, sublicense, and/or
+ *     sell copies of the Software, and to permit persons to whom the
+ *     Software is furnished to do so, subject to the following
+ *     conditions:
+ *
+ *     The above copyright notice and this permission notice shall be
+ *     included in all copies or substantial portions of the Software.
+ *
+ *     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ *     OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ *     HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ *     WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *     FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ *     OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "stm32f4-pinctrl.dtsi"
+
+/ {
+	soc {
+		pinctrl: pin-controller {
+			compatible = "st,stm32f469-pinctrl";
+
+			gpioa: gpio@40020000 {
+				gpio-ranges = <&pinctrl 0 0 16>;
+			};
+
+			gpiob: gpio@40020400 {
+				gpio-ranges = <&pinctrl 0 16 16>;
+			};
+
+			gpioc: gpio@40020800 {
+				gpio-ranges = <&pinctrl 0 32 16>;
+			};
+
+			gpiod: gpio@40020c00 {
+				gpio-ranges = <&pinctrl 0 48 16>;
+			};
+
+			gpioe: gpio@40021000 {
+				gpio-ranges = <&pinctrl 0 64 16>;
+			};
+
+			gpiof: gpio@40021400 {
+				gpio-ranges = <&pinctrl 0 80 16>;
+			};
+
+			gpiog: gpio@40021800 {
+				gpio-ranges = <&pinctrl 0 96 16>;
+			};
+
+			gpioh: gpio@40021c00 {
+				gpio-ranges = <&pinctrl 0 112 16>;
+			};
+
+			gpioi: gpio@40022000 {
+				gpio-ranges = <&pinctrl 0 128 16>;
+			};
+
+			gpioj: gpio@40022400 {
+				gpio-ranges = <&pinctrl 0 144 6>,
+					      <&pinctrl 12 156 4>;
+			};
+
+			gpiok: gpio@40022800 {
+				gpio-ranges = <&pinctrl 3 163 5>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/stm32f746.dtsi b/arch/arm/boot/dts/stm32f746.dtsi
index 5633860037d2..5f9417894059 100644
--- a/arch/arm/boot/dts/stm32f746.dtsi
+++ b/arch/arm/boot/dts/stm32f746.dtsi
@@ -136,7 +136,7 @@
 		};
 
 		usart2: serial@40004400 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
 			clocks = <&rcc 1 CLK_USART2>;
@@ -144,7 +144,7 @@
 		};
 
 		usart3: serial@40004800 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40004800 0x400>;
 			interrupts = <39>;
 			clocks = <&rcc 1 CLK_USART3>;
@@ -177,7 +177,7 @@
 		};
 
 		usart7: serial@40007800 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40007800 0x400>;
 			interrupts = <82>;
 			clocks = <&rcc 1 CLK_UART7>;
@@ -185,7 +185,7 @@
 		};
 
 		usart8: serial@40007c00 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40007c00 0x400>;
 			interrupts = <83>;
 			clocks = <&rcc 1 CLK_UART8>;
@@ -193,7 +193,7 @@
 		};
 
 		usart1: serial@40011000 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
 			clocks = <&rcc 1 CLK_USART1>;
@@ -201,7 +201,7 @@
 		};
 
 		usart6: serial@40011400 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40011400 0x400>;
 			interrupts = <71>;
 			clocks = <&rcc 1 CLK_USART6>;
diff --git a/arch/arm/boot/dts/stm32h743.dtsi b/arch/arm/boot/dts/stm32h743.dtsi
index 58ec2275181e..26de31578701 100644
--- a/arch/arm/boot/dts/stm32h743.dtsi
+++ b/arch/arm/boot/dts/stm32h743.dtsi
@@ -67,7 +67,7 @@
 		};
 
 		usart2: serial@40004400 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40004400 0x400>;
 			interrupts = <38>;
 			status = "disabled";
@@ -99,7 +99,7 @@
 		};
 
 		usart1: serial@40011000 {
-			compatible = "st,stm32f7-usart", "st,stm32f7-uart";
+			compatible = "st,stm32f7-uart";
 			reg = <0x40011000 0x400>;
 			interrupts = <37>;
 			status = "disabled";
diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index b147cb0dc14b..eef072a21acc 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -311,8 +311,8 @@
 					#size-cells = <0>;
 					reg = <0>;
 
-					tcon1_in_drc1: endpoint@0 {
-						reg = <0>;
+					tcon1_in_drc1: endpoint@1 {
+						reg = <1>;
 						remote-endpoint = <&drc1_out_tcon1>;
 					};
 				};
@@ -1012,8 +1012,8 @@
 					#size-cells = <0>;
 					reg = <1>;
 
-					be1_out_drc1: endpoint@0 {
-						reg = <0>;
+					be1_out_drc1: endpoint@1 {
+						reg = <1>;
 						remote-endpoint = <&drc1_in_be1>;
 					};
 				};
@@ -1042,8 +1042,8 @@
 					#size-cells = <0>;
 					reg = <0>;
 
-					drc1_in_be1: endpoint@0 {
-						reg = <0>;
+					drc1_in_be1: endpoint@1 {
+						reg = <1>;
 						remote-endpoint = <&be1_out_drc1>;
 					};
 				};
@@ -1053,8 +1053,8 @@
 					#size-cells = <0>;
 					reg = <1>;
 
-					drc1_out_tcon1: endpoint@0 {
-						reg = <0>;
+					drc1_out_tcon1: endpoint@1 {
+						reg = <1>;
 						remote-endpoint = <&tcon1_in_drc1>;
 					};
 				};
diff --git a/arch/arm/boot/dts/tango4-common.dtsi b/arch/arm/boot/dts/tango4-common.dtsi
index 0c8cad4d6ee6..12ab6e0c0331 100644
--- a/arch/arm/boot/dts/tango4-common.dtsi
+++ b/arch/arm/boot/dts/tango4-common.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Based on Mans Rullgard's Tango3 DT
  * https://github.com/mansr/linux-tangox
diff --git a/arch/arm/boot/dts/tango4-smp8758.dtsi b/arch/arm/boot/dts/tango4-smp8758.dtsi
index eca33d568690..1c6a5bf1a86b 100644
--- a/arch/arm/boot/dts/tango4-smp8758.dtsi
+++ b/arch/arm/boot/dts/tango4-smp8758.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tango4-common.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/tango4-vantage-1172.dts b/arch/arm/boot/dts/tango4-vantage-1172.dts
index 13bcc460bcb2..d237d7f02c51 100644
--- a/arch/arm/boot/dts/tango4-vantage-1172.dts
+++ b/arch/arm/boot/dts/tango4-vantage-1172.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tango4-smp8758.dtsi"
diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index 5af4dd321952..acd6cf51b15b 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This dts file supports Dalmore A04.
  * Other board revisions are not supported
diff --git a/arch/arm/boot/dts/tegra114-roth.dts b/arch/arm/boot/dts/tegra114-roth.dts
index 966a7fc044af..7ed7370ee67a 100644
--- a/arch/arm/boot/dts/tegra114-roth.dts
+++ b/arch/arm/boot/dts/tegra114-roth.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra114-tn7.dts b/arch/arm/boot/dts/tegra114-tn7.dts
index a161fa1dfb61..7fc4a8b31e45 100644
--- a/arch/arm/boot/dts/tegra114-tn7.dts
+++ b/arch/arm/boot/dts/tegra114-tn7.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index 8932ea3afd5f..0e4a13295d8a 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra114-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/memory/tegra114-mc.h>
diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1-emc.dtsi b/arch/arm/boot/dts/tegra124-jetson-tk1-emc.dtsi
index accb7055165a..784a529e1f19 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1-emc.dtsi
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1-emc.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	clock@60006000 {
 		emc-timings-3 {
diff --git a/arch/arm/boot/dts/tegra124-jetson-tk1.dts b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
index 61873d642a45..e8e777b8ef1b 100644
--- a/arch/arm/boot/dts/tegra124-jetson-tk1.dts
+++ b/arch/arm/boot/dts/tegra124-jetson-tk1.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra124-nyan-big-emc.dtsi b/arch/arm/boot/dts/tegra124-nyan-big-emc.dtsi
index 4458e86b2769..9af21fe93a5c 100644
--- a/arch/arm/boot/dts/tegra124-nyan-big-emc.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan-big-emc.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	clock@60006000 {
 		emc-timings-1 {
diff --git a/arch/arm/boot/dts/tegra124-nyan-big.dts b/arch/arm/boot/dts/tegra124-nyan-big.dts
index 12eb7809d9ab..d97791b98958 100644
--- a/arch/arm/boot/dts/tegra124-nyan-big.dts
+++ b/arch/arm/boot/dts/tegra124-nyan-big.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra124-nyan.dtsi"
diff --git a/arch/arm/boot/dts/tegra124-nyan-blaze-emc.dtsi b/arch/arm/boot/dts/tegra124-nyan-blaze-emc.dtsi
index 4e7b59e25728..c7c31d4c1a2b 100644
--- a/arch/arm/boot/dts/tegra124-nyan-blaze-emc.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan-blaze-emc.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	clock@60006000 {
 		emc-timings-1 {
diff --git a/arch/arm/boot/dts/tegra124-nyan-blaze.dts b/arch/arm/boot/dts/tegra124-nyan-blaze.dts
index 1078a73d5092..2a029ee86dd7 100644
--- a/arch/arm/boot/dts/tegra124-nyan-blaze.dts
+++ b/arch/arm/boot/dts/tegra124-nyan-blaze.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra124-nyan.dtsi"
diff --git a/arch/arm/boot/dts/tegra124-nyan.dtsi b/arch/arm/boot/dts/tegra124-nyan.dtsi
index 5cf987b5401e..3609367037a6 100644
--- a/arch/arm/boot/dts/tegra124-nyan.dtsi
+++ b/arch/arm/boot/dts/tegra124-nyan.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/input/input.h>
 #include "tegra124.dtsi"
 
diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
index 6e59cec0962b..32d9079f025b 100644
--- a/arch/arm/boot/dts/tegra124-venice2.dts
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 8baf00b89efb..a7e43dcbf744 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra124-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/memory/tegra124-mc.h>
diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
index 1242b841f147..813ae34edd6a 100644
--- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
+++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tegra20.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/tegra20-harmony.dts b/arch/arm/boot/dts/tegra20-harmony.dts
index 41749693ec3c..628a55a9318b 100644
--- a/arch/arm/boot/dts/tegra20-harmony.dts
+++ b/arch/arm/boot/dts/tegra20-harmony.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra20-iris-512.dts b/arch/arm/boot/dts/tegra20-iris-512.dts
index bb56dfe9e10c..40126388946d 100644
--- a/arch/arm/boot/dts/tegra20-iris-512.dts
+++ b/arch/arm/boot/dts/tegra20-iris-512.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra20-colibri-512.dtsi"
diff --git a/arch/arm/boot/dts/tegra20-medcom-wide.dts b/arch/arm/boot/dts/tegra20-medcom-wide.dts
index 34c6588e92ef..cda5448c2ace 100644
--- a/arch/arm/boot/dts/tegra20-medcom-wide.dts
+++ b/arch/arm/boot/dts/tegra20-medcom-wide.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra20-tamonten.dtsi"
diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts
index bfa9421fcf94..30436969adc0 100644
--- a/arch/arm/boot/dts/tegra20-paz00.dts
+++ b/arch/arm/boot/dts/tegra20-paz00.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra20-plutux.dts b/arch/arm/boot/dts/tegra20-plutux.dts
index a10b415bbdee..429e4605fbdb 100644
--- a/arch/arm/boot/dts/tegra20-plutux.dts
+++ b/arch/arm/boot/dts/tegra20-plutux.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra20-tamonten.dtsi"
diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
index 2017acacc00c..284aae351ff2 100644
--- a/arch/arm/boot/dts/tegra20-seaboard.dts
+++ b/arch/arm/boot/dts/tegra20-seaboard.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra20-tamonten.dtsi b/arch/arm/boot/dts/tegra20-tamonten.dtsi
index 7361f4a82e80..872046d48709 100644
--- a/arch/arm/boot/dts/tegra20-tamonten.dtsi
+++ b/arch/arm/boot/dts/tegra20-tamonten.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tegra20.dtsi"
 
 / {
diff --git a/arch/arm/boot/dts/tegra20-tec.dts b/arch/arm/boot/dts/tegra20-tec.dts
index 9cb534f4441e..4dec27737238 100644
--- a/arch/arm/boot/dts/tegra20-tec.dts
+++ b/arch/arm/boot/dts/tegra20-tec.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra20-tamonten.dtsi"
diff --git a/arch/arm/boot/dts/tegra20-trimslice.dts b/arch/arm/boot/dts/tegra20-trimslice.dts
index b902ab594afa..d55c6b240a30 100644
--- a/arch/arm/boot/dts/tegra20-trimslice.dts
+++ b/arch/arm/boot/dts/tegra20-trimslice.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 8f0aaabf7e28..ee3fbf941e79 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 7c85f97f72ea..914f59166a99 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra20-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/pinctrl/pinctrl-tegra.h>
diff --git a/arch/arm/boot/dts/tegra30-apalis-eval.dts b/arch/arm/boot/dts/tegra30-apalis-eval.dts
index fc530e4a96c4..07b945b0391a 100644
--- a/arch/arm/boot/dts/tegra30-apalis-eval.dts
+++ b/arch/arm/boot/dts/tegra30-apalis-eval.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm/boot/dts/tegra30-apalis.dtsi b/arch/arm/boot/dts/tegra30-apalis.dtsi
index 7a6a1a014603..faa8cd2914e8 100644
--- a/arch/arm/boot/dts/tegra30-apalis.dtsi
+++ b/arch/arm/boot/dts/tegra30-apalis.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tegra30.dtsi"
 
 /*
diff --git a/arch/arm/boot/dts/tegra30-beaver.dts b/arch/arm/boot/dts/tegra30-beaver.dts
index 3e104ddeb220..5331a8f7dcf8 100644
--- a/arch/arm/boot/dts/tegra30-beaver.dts
+++ b/arch/arm/boot/dts/tegra30-beaver.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra30.dtsi"
diff --git a/arch/arm/boot/dts/tegra30-cardhu-a02.dts b/arch/arm/boot/dts/tegra30-cardhu-a02.dts
index c9bfedcca6ed..a02ec5082287 100644
--- a/arch/arm/boot/dts/tegra30-cardhu-a02.dts
+++ b/arch/arm/boot/dts/tegra30-cardhu-a02.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra30-cardhu.dtsi"
diff --git a/arch/arm/boot/dts/tegra30-cardhu-a04.dts b/arch/arm/boot/dts/tegra30-cardhu-a04.dts
index fadf55e46b2b..4dbd4af679f0 100644
--- a/arch/arm/boot/dts/tegra30-cardhu-a04.dts
+++ b/arch/arm/boot/dts/tegra30-cardhu-a04.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra30-cardhu.dtsi"
diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index 83dc14a9b353..92a9740c533f 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/input/input.h>
 #include "tegra30.dtsi"
 
diff --git a/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts b/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
index a8c0318743b6..3c5fb2430212 100644
--- a/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
+++ b/arch/arm/boot/dts/tegra30-colibri-eval-v3.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra30-colibri.dtsi"
diff --git a/arch/arm/boot/dts/tegra30-colibri.dtsi b/arch/arm/boot/dts/tegra30-colibri.dtsi
index 5360d638eedc..139bfa028b04 100644
--- a/arch/arm/boot/dts/tegra30-colibri.dtsi
+++ b/arch/arm/boot/dts/tegra30-colibri.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/input/input.h>
 #include "tegra30.dtsi"
 
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 13960fda7471..c3e9f1e847db 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra30-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/memory/tegra30-mc.h>
diff --git a/arch/arm/boot/dts/uniphier-ld4.dtsi b/arch/arm/boot/dts/uniphier-ld4.dtsi
index 79183db5b386..93586faf950f 100644
--- a/arch/arm/boot/dts/uniphier-ld4.dtsi
+++ b/arch/arm/boot/dts/uniphier-ld4.dtsi
@@ -209,7 +209,8 @@
 			interrupts = <0 80 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb0>;
-			clocks = <&mio_clk 7>, <&mio_clk 8>, <&mio_clk 12>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 8>,
+				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
 		};
@@ -221,7 +222,8 @@
 			interrupts = <0 81 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb1>;
-			clocks = <&mio_clk 7>, <&mio_clk 9>, <&mio_clk 13>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 9>,
+				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
 		};
@@ -233,7 +235,8 @@
 			interrupts = <0 82 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb2>;
-			clocks = <&mio_clk 7>, <&mio_clk 10>, <&mio_clk 14>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 10>,
+				 <&mio_clk 14>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
 				 <&mio_rst 14>;
 		};
diff --git a/arch/arm/boot/dts/uniphier-pro4.dtsi b/arch/arm/boot/dts/uniphier-pro4.dtsi
index b3dbbd9b6e39..2a9bd7f9f5db 100644
--- a/arch/arm/boot/dts/uniphier-pro4.dtsi
+++ b/arch/arm/boot/dts/uniphier-pro4.dtsi
@@ -241,7 +241,8 @@
 			interrupts = <0 80 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb2>;
-			clocks = <&mio_clk 7>, <&mio_clk 8>, <&mio_clk 12>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 8>,
+				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
 		};
@@ -253,7 +254,8 @@
 			interrupts = <0 81 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb3>;
-			clocks = <&mio_clk 7>, <&mio_clk 9>, <&mio_clk 13>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 9>,
+				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
 		};
diff --git a/arch/arm/boot/dts/uniphier-sld8.dtsi b/arch/arm/boot/dts/uniphier-sld8.dtsi
index b08390332971..ebd0c3f63e7f 100644
--- a/arch/arm/boot/dts/uniphier-sld8.dtsi
+++ b/arch/arm/boot/dts/uniphier-sld8.dtsi
@@ -209,7 +209,8 @@
 			interrupts = <0 80 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb0>;
-			clocks = <&mio_clk 7>, <&mio_clk 8>, <&mio_clk 12>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 8>,
+				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
 		};
@@ -221,7 +222,8 @@
 			interrupts = <0 81 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb1>;
-			clocks = <&mio_clk 7>, <&mio_clk 9>, <&mio_clk 13>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 9>,
+				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
 		};
@@ -233,7 +235,8 @@
 			interrupts = <0 82 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb2>;
-			clocks = <&mio_clk 7>, <&mio_clk 10>, <&mio_clk 14>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 10>,
+				 <&mio_clk 14>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
 				 <&mio_rst 14>;
 		};
diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index 409e069b3a84..4a51612996bc 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /include/ "skeleton.dtsi"
 
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
index 9abe26028c8b..06a0fdf24026 100644
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "versatile-ab.dts"
 
 / {
diff --git a/arch/arm/boot/dts/vexpress-v2m.dtsi b/arch/arm/boot/dts/vexpress-v2m.dtsi
index 1b6f6393be93..b0021a816028 100644
--- a/arch/arm/boot/dts/vexpress-v2m.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Versatile Express
  *
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts
index 0c8de0ca73ee..a8ac4e2ed290 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15-tc1.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Versatile Express
  *
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
index 65ecf206388c..a4c7713edfcd 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca15_a7.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Versatile Express
  *
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts
index 6e69b8e6c1a7..32f1906ffecf 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca5s.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca5s.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Versatile Express
  *
diff --git a/arch/arm/boot/dts/vexpress-v2p-ca9.dts b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
index c9305b58afc2..5814460e0549 100644
--- a/arch/arm/boot/dts/vexpress-v2p-ca9.dts
+++ b/arch/arm/boot/dts/vexpress-v2p-ca9.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Versatile Express
  *
diff --git a/arch/arm/boot/dts/xenvm-4.2.dts b/arch/arm/boot/dts/xenvm-4.2.dts
index 336915151398..384cd92f1f84 100644
--- a/arch/arm/boot/dts/xenvm-4.2.dts
+++ b/arch/arm/boot/dts/xenvm-4.2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xen Virtual Machine for unprivileged guests
  *
diff --git a/arch/arm/boot/dts/zx296702-ad1.dts b/arch/arm/boot/dts/zx296702-ad1.dts
index b0183c3a1d7c..eedd3fcbc002 100644
--- a/arch/arm/boot/dts/zx296702-ad1.dts
+++ b/arch/arm/boot/dts/zx296702-ad1.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /dts-v1/;
 
diff --git a/arch/arm/boot/dts/zx296702.dtsi b/arch/arm/boot/dts/zx296702.dtsi
index d45c8fcd7ab4..752d28e0f9b0 100644
--- a/arch/arm/boot/dts/zx296702.dtsi
+++ b/arch/arm/boot/dts/zx296702.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include "skeleton.dtsi"
 #include <dt-bindings/clock/zx296702-clock.h>
diff --git a/arch/arm/common/Kconfig b/arch/arm/common/Kconfig
index 1181053e3ade..e5ad0708849a 100644
--- a/arch/arm/common/Kconfig
+++ b/arch/arm/common/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config SA1111
 	bool
 	select DMABOUNCE if !ARCH_PXA
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 29fdf6a3601d..70b4a14ed993 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index 6c7b06854fce..51936bde1eb2 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -826,28 +826,6 @@ static int locomo_match(struct device *_dev, struct device_driver *_drv)
 	return dev->devid == drv->devid;
 }
 
-static int locomo_bus_suspend(struct device *dev, pm_message_t state)
-{
-	struct locomo_dev *ldev = LOCOMO_DEV(dev);
-	struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
-	int ret = 0;
-
-	if (drv && drv->suspend)
-		ret = drv->suspend(ldev, state);
-	return ret;
-}
-
-static int locomo_bus_resume(struct device *dev)
-{
-	struct locomo_dev *ldev = LOCOMO_DEV(dev);
-	struct locomo_driver *drv = LOCOMO_DRV(dev->driver);
-	int ret = 0;
-
-	if (drv && drv->resume)
-		ret = drv->resume(ldev);
-	return ret;
-}
-
 static int locomo_bus_probe(struct device *dev)
 {
 	struct locomo_dev *ldev = LOCOMO_DEV(dev);
@@ -875,8 +853,6 @@ struct bus_type locomo_bus_type = {
 	.match		= locomo_match,
 	.probe		= locomo_bus_probe,
 	.remove		= locomo_bus_remove,
-	.suspend	= locomo_bus_suspend,
-	.resume		= locomo_bus_resume,
 };
 
 int locomo_driver_register(struct locomo_driver *driver)
diff --git a/arch/arm/configs/dove_defconfig b/arch/arm/configs/dove_defconfig
index a93cc2fcf791..2f01e84b3d8c 100644
--- a/arch/arm/configs/dove_defconfig
+++ b/arch/arm/configs/dove_defconfig
@@ -140,6 +140,6 @@ CONFIG_CRYPTO_TWOFISH=y
 CONFIG_CRYPTO_DEFLATE=y
 CONFIG_CRYPTO_LZO=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
-CONFIG_CRYPTO_DEV_MV_CESA=y
+CONFIG_CRYPTO_DEV_MARVELL_CESA=y
 CONFIG_CRC_CCITT=y
 CONFIG_LIBCRC32C=y
diff --git a/arch/arm/configs/gemini_defconfig b/arch/arm/configs/gemini_defconfig
index d2d75fa664a6..2a63fa10c813 100644
--- a/arch/arm/configs/gemini_defconfig
+++ b/arch/arm/configs/gemini_defconfig
@@ -32,6 +32,7 @@ CONFIG_BLK_DEV_RAM_SIZE=16384
 CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_ATA=y
+CONFIG_PATA_FTIDE010=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
@@ -55,8 +56,8 @@ CONFIG_LEDS_GPIO=y
 CONFIG_LEDS_TRIGGERS=y
 CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_GEMINI=y
 CONFIG_DMADEVICES=y
+CONFIG_AMBA_PL08X=y
 # CONFIG_DNOTIFY is not set
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
diff --git a/arch/arm/configs/multi_v5_defconfig b/arch/arm/configs/multi_v5_defconfig
index 69a4bd13eea5..7c41bee28463 100644
--- a/arch/arm/configs/multi_v5_defconfig
+++ b/arch/arm/configs/multi_v5_defconfig
@@ -279,6 +279,6 @@ CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_USER=y
 CONFIG_CRYPTO_CBC=m
 CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_DEV_MV_CESA=y
+CONFIG_CRYPTO_DEV_MARVELL_CESA=y
 CONFIG_CRC_CCITT=y
 CONFIG_LIBCRC32C=y
diff --git a/arch/arm/configs/orion5x_defconfig b/arch/arm/configs/orion5x_defconfig
index e39ee282e6ca..b831baddae02 100644
--- a/arch/arm/configs/orion5x_defconfig
+++ b/arch/arm/configs/orion5x_defconfig
@@ -163,5 +163,5 @@ CONFIG_CRYPTO_CBC=m
 CONFIG_CRYPTO_ECB=m
 CONFIG_CRYPTO_PCBC=m
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
-CONFIG_CRYPTO_DEV_MV_CESA=y
+CONFIG_CRYPTO_DEV_MARVELL_CESA=y
 CONFIG_CRC_T10DIF=y
diff --git a/arch/arm/configs/pxa_defconfig b/arch/arm/configs/pxa_defconfig
index 64e3a2a8cede..830e817a028a 100644
--- a/arch/arm/configs/pxa_defconfig
+++ b/arch/arm/configs/pxa_defconfig
@@ -219,7 +219,8 @@ CONFIG_AD525X_DPOT_I2C=m
 CONFIG_ICS932S401=m
 CONFIG_APDS9802ALS=m
 CONFIG_ISL29003=m
-CONFIG_TI_DAC7512=m
+CONFIG_IIO=m
+CONFIG_AD5446=m
 CONFIG_EEPROM_AT24=m
 CONFIG_SENSORS_LIS3_SPI=m
 CONFIG_IDE=m
@@ -471,7 +472,7 @@ CONFIG_LCD_PLATFORM=m
 CONFIG_LCD_TOSA=m
 CONFIG_BACKLIGHT_PWM=m
 CONFIG_BACKLIGHT_TOSA=m
-CONFIG_FRAMEBUFFER_CONSOLE=m
+CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
diff --git a/arch/arm/configs/raumfeld_defconfig b/arch/arm/configs/raumfeld_defconfig
index e3dc80ead465..77a56c23c6ef 100644
--- a/arch/arm/configs/raumfeld_defconfig
+++ b/arch/arm/configs/raumfeld_defconfig
@@ -37,7 +37,8 @@ CONFIG_MTD_NAND_PXA3xx=y
 CONFIG_MTD_UBI=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_ISL29003=y
-CONFIG_TI_DAC7512=y
+CONFIG_IIO=y
+CONFIG_AD5446=y
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_SG=y
diff --git a/arch/arm/configs/viper_defconfig b/arch/arm/configs/viper_defconfig
index 44d4fa57ba0a..070e5074f1ee 100644
--- a/arch/arm/configs/viper_defconfig
+++ b/arch/arm/configs/viper_defconfig
@@ -113,7 +113,7 @@ CONFIG_FB_PXA_PARAMETERS=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_BACKLIGHT_PWM=m
 # CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=m
+CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
diff --git a/arch/arm/configs/zeus_defconfig b/arch/arm/configs/zeus_defconfig
index 8d4c0c926c34..09e7050d5653 100644
--- a/arch/arm/configs/zeus_defconfig
+++ b/arch/arm/configs/zeus_defconfig
@@ -112,7 +112,7 @@ CONFIG_FB_PXA=m
 CONFIG_FB_PXA_PARAMETERS=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 # CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=m
+CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
diff --git a/arch/arm/crypto/Kconfig b/arch/arm/crypto/Kconfig
index ec72752d5668..b8e69fe282b8 100644
--- a/arch/arm/crypto/Kconfig
+++ b/arch/arm/crypto/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 menuconfig ARM_CRYPTO
 	bool "ARM Accelerated Cryptographic Algorithms"
diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index f2215fbeed13..30ef8e291271 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific CryptoAPI modules.
 #
diff --git a/arch/arm/crypto/sha1.h b/arch/arm/crypto/sha1.h
index ffd8bd08b1a7..758db3e9ff0a 100644
--- a/arch/arm/crypto/sha1.h
+++ b/arch/arm/crypto/sha1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_ARM_CRYPTO_SHA1_H
 #define ASM_ARM_CRYPTO_SHA1_H
 
diff --git a/arch/arm/crypto/sha256_glue.h b/arch/arm/crypto/sha256_glue.h
index 7cf0bf786ada..9f0d578bab5f 100644
--- a/arch/arm/crypto/sha256_glue.h
+++ b/arch/arm/crypto/sha256_glue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_SHA256_GLUE_H
 #define _CRYPTO_SHA256_GLUE_H
 
diff --git a/arch/arm/crypto/sha512.h b/arch/arm/crypto/sha512.h
index a75d9a82988a..e14572be76d1 100644
--- a/arch/arm/crypto/sha512.h
+++ b/arch/arm/crypto/sha512.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 int sha512_arm_update(struct shash_desc *desc, const u8 *data,
 		      unsigned int len);
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index 721ab5ecfb9b..0f2c8a2a8131 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -20,7 +20,6 @@ generic-y += simd.h
 generic-y += sizes.h
 generic-y += timex.h
 generic-y += trace_clock.h
-generic-y += unaligned.h
 
 generated-y += mach-types.h
 generated-y += unistd-nr.h
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h
index eee269321923..1070044f5c3f 100644
--- a/arch/arm/include/asm/arch_gicv3.h
+++ b/arch/arm/include/asm/arch_gicv3.h
@@ -196,6 +196,11 @@ static inline void gic_write_ctlr(u32 val)
 	isb();
 }
 
+static inline u32 gic_read_ctlr(void)
+{
+	return read_sysreg(ICC_CTLR);
+}
+
 static inline void gic_write_grpen1(u32 val)
 {
 	write_sysreg(val, ICC_IGRPEN1);
diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h
index d4ebf5679f1f..9327e3a101dc 100644
--- a/arch/arm/include/asm/arch_timer.h
+++ b/arch/arm/include/asm/arch_timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_ARCH_TIMER_H
 #define __ASMARM_ARCH_TIMER_H
 
diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h
index f5d698182d50..40f5c410fd8c 100644
--- a/arch/arm/include/asm/barrier.h
+++ b/arch/arm/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_BARRIER_H
 #define __ASM_BARRIER_H
 
diff --git a/arch/arm/include/asm/bitops.h b/arch/arm/include/asm/bitops.h
index f308c8c40cb9..ce5ee762ed66 100644
--- a/arch/arm/include/asm/bitops.h
+++ b/arch/arm/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 1995, Russell King.
  * Various bits and pieces copyrights include:
diff --git a/arch/arm/include/asm/bitrev.h b/arch/arm/include/asm/bitrev.h
index ec291c350ea3..84ad8dde62d6 100644
--- a/arch/arm/include/asm/bitrev.h
+++ b/arch/arm/include/asm/bitrev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_BITREV_H
 #define __ASM_BITREV_H
 
diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 2244a94ed9c9..237aa52d8733 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMARM_BUG_H
 #define _ASMARM_BUG_H
 
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
index 75fe66bc02b4..1d65ed3a2755 100644
--- a/arch/arm/include/asm/cache.h
+++ b/arch/arm/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/arm/include/asm/cache.h
  */
diff --git a/arch/arm/include/asm/cachetype.h b/arch/arm/include/asm/cachetype.h
index 01509ae0bbec..e8c30430be33 100644
--- a/arch/arm/include/asm/cachetype.h
+++ b/arch/arm/include/asm/cachetype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_CACHETYPE_H
 #define __ASM_ARM_CACHETYPE_H
 
diff --git a/arch/arm/include/asm/checksum.h b/arch/arm/include/asm/checksum.h
index 524692f4acab..20043e0ebb07 100644
--- a/arch/arm/include/asm/checksum.h
+++ b/arch/arm/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/arm/include/asm/checksum.h
  *
diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 97882f9bad12..8b701f8e175c 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_CMPXCHG_H
 #define __ASM_ARM_CMPXCHG_H
 
diff --git a/arch/arm/include/asm/compiler.h b/arch/arm/include/asm/compiler.h
index 29fe85e59439..5e94e67d1083 100644
--- a/arch/arm/include/asm/compiler.h
+++ b/arch/arm/include/asm/compiler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_COMPILER_H
 #define __ASM_ARM_COMPILER_H
 
diff --git a/arch/arm/include/asm/cp15.h b/arch/arm/include/asm/cp15.h
index dbdbce1b3a72..4c9fa72b59f5 100644
--- a/arch/arm/include/asm/cp15.h
+++ b/arch/arm/include/asm/cp15.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_CP15_H
 #define __ASM_ARM_CP15_H
 
diff --git a/arch/arm/include/asm/cpuidle.h b/arch/arm/include/asm/cpuidle.h
index baefe1d51517..6b2ff7243b4b 100644
--- a/arch/arm/include/asm/cpuidle.h
+++ b/arch/arm/include/asm/cpuidle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_CPUIDLE_H
 #define __ASM_ARM_CPUIDLE_H
 
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index b62eaeb147aa..441933311bbf 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_CPUTYPE_H
 #define __ASM_ARM_CPUTYPE_H
 
diff --git a/arch/arm/include/asm/cti.h b/arch/arm/include/asm/cti.h
index 2381199acb7d..f8500e5d6ea8 100644
--- a/arch/arm/include/asm/cti.h
+++ b/arch/arm/include/asm/cti.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_CTI_H
 #define __ASMARM_CTI_H
 
diff --git a/arch/arm/include/asm/delay.h b/arch/arm/include/asm/delay.h
index e986b7f717c4..4f80b72372b4 100644
--- a/arch/arm/include/asm/delay.h
+++ b/arch/arm/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1995-2004 Russell King
  *
diff --git a/arch/arm/include/asm/div64.h b/arch/arm/include/asm/div64.h
index 7d919a9b32e5..898e9c78a7e7 100644
--- a/arch/arm/include/asm/div64.h
+++ b/arch/arm/include/asm/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_DIV64
 #define __ASM_ARM_DIV64
 
diff --git a/arch/arm/include/asm/dma-contiguous.h b/arch/arm/include/asm/dma-contiguous.h
index 4f8e9e5514b1..d785187a6f8a 100644
--- a/arch/arm/include/asm/dma-contiguous.h
+++ b/arch/arm/include/asm/dma-contiguous.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_DMA_CONTIGUOUS_H
 #define ASMARM_DMA_CONTIGUOUS_H
 
diff --git a/arch/arm/include/asm/dma-iommu.h b/arch/arm/include/asm/dma-iommu.h
index c090ec675eac..0722ec6be692 100644
--- a/arch/arm/include/asm/dma-iommu.h
+++ b/arch/arm/include/asm/dma-iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_DMA_IOMMU_H
 #define ASMARM_DMA_IOMMU_H
 
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 4e0285a66ef8..3ca119997818 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_DMA_MAPPING_H
 #define ASMARM_DMA_MAPPING_H
 
diff --git a/arch/arm/include/asm/dma.h b/arch/arm/include/asm/dma.h
index bb4fa67da541..a81dda65c576 100644
--- a/arch/arm/include/asm/dma.h
+++ b/arch/arm/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_DMA_H
 #define __ASM_ARM_DMA_H
 
diff --git a/arch/arm/include/asm/ecard.h b/arch/arm/include/asm/ecard.h
index eaea14676d57..4befe8d2ae19 100644
--- a/arch/arm/include/asm/ecard.h
+++ b/arch/arm/include/asm/ecard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/include/asm/ecard.h
  *
diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h
index f13ae153fb24..8c5ca92a87a9 100644
--- a/arch/arm/include/asm/elf.h
+++ b/arch/arm/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_ELF_H
 #define __ASMARM_ELF_H
 
diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S
index 609184f522ee..dfc6bfa43012 100644
--- a/arch/arm/include/asm/entry-macro-multi.S
+++ b/arch/arm/include/asm/entry-macro-multi.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/assembler.h>
 
 /*
diff --git a/arch/arm/include/asm/exception.h b/arch/arm/include/asm/exception.h
index bf1991263d2d..a7273ad9587a 100644
--- a/arch/arm/include/asm/exception.h
+++ b/arch/arm/include/asm/exception.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Annotations for marking C functions as exception handlers.
  *
diff --git a/arch/arm/include/asm/fiq.h b/arch/arm/include/asm/fiq.h
index d493d0b742a1..6bdfb4a47322 100644
--- a/arch/arm/include/asm/fiq.h
+++ b/arch/arm/include/asm/fiq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/arm/include/asm/fiq.h
  *
diff --git a/arch/arm/include/asm/fixmap.h b/arch/arm/include/asm/fixmap.h
index 8f967d1373f6..472c93db5dac 100644
--- a/arch/arm/include/asm/fixmap.h
+++ b/arch/arm/include/asm/fixmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FIXMAP_H
 #define _ASM_FIXMAP_H
 
diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index 29d3a1524bce..f0c75ddeea23 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/include/asm/flat.h -- uClinux flat-format executables
  */
diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h
index f379881d5cc3..9e842ff41768 100644
--- a/arch/arm/include/asm/ftrace.h
+++ b/arch/arm/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_FTRACE
 #define _ASM_ARM_FTRACE
 
diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h
index cc414382dab4..ffebe7b7a5b7 100644
--- a/arch/arm/include/asm/futex.h
+++ b/arch/arm/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_FUTEX_H
 #define _ASM_ARM_FUTEX_H
 
diff --git a/arch/arm/include/asm/gpio.h b/arch/arm/include/asm/gpio.h
index 504dcddebfcc..c50e383358c4 100644
--- a/arch/arm/include/asm/gpio.h
+++ b/arch/arm/include/asm/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_ARM_GPIO_H
 #define _ARCH_ARM_GPIO_H
 
diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 3d7351c844aa..cba23eaa6072 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_HARDIRQ_H
 #define __ASM_HARDIRQ_H
 
diff --git a/arch/arm/include/asm/hardware/it8152.h b/arch/arm/include/asm/hardware/it8152.h
index 076777ff3daa..e175c2384f28 100644
--- a/arch/arm/include/asm/hardware/it8152.h
+++ b/arch/arm/include/asm/hardware/it8152.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/arm/hardware/it8152.h
  *
diff --git a/arch/arm/include/asm/hardware/locomo.h b/arch/arm/include/asm/hardware/locomo.h
index 74e51d6bd93f..f8712e3c29cf 100644
--- a/arch/arm/include/asm/hardware/locomo.h
+++ b/arch/arm/include/asm/hardware/locomo.h
@@ -189,8 +189,6 @@ struct locomo_driver {
 	unsigned int		devid;
 	int (*probe)(struct locomo_dev *);
 	int (*remove)(struct locomo_dev *);
-	int (*suspend)(struct locomo_dev *, pm_message_t);
-	int (*resume)(struct locomo_dev *);
 };
 
 #define LOCOMO_DRV(_d)	container_of((_d), struct locomo_driver, drv)
diff --git a/arch/arm/include/asm/hardware/sa1111.h b/arch/arm/include/asm/hardware/sa1111.h
index 8979fa3bbf2d..0bbf163d1ed3 100644
--- a/arch/arm/include/asm/hardware/sa1111.h
+++ b/arch/arm/include/asm/hardware/sa1111.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/include/asm/hardware/sa1111.h
  *
diff --git a/arch/arm/include/asm/highmem.h b/arch/arm/include/asm/highmem.h
index 0a0e2d1784c0..b03d3fa2e58d 100644
--- a/arch/arm/include/asm/highmem.h
+++ b/arch/arm/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HIGHMEM_H
 #define _ASM_HIGHMEM_H
 
diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h
index afcaf8bf971b..e46e4e7bdba3 100644
--- a/arch/arm/include/asm/hw_breakpoint.h
+++ b/arch/arm/include/asm/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARM_HW_BREAKPOINT_H
 #define _ARM_HW_BREAKPOINT_H
 
diff --git a/arch/arm/include/asm/hw_irq.h b/arch/arm/include/asm/hw_irq.h
index 9beb92914f4d..cecc13214ef1 100644
--- a/arch/arm/include/asm/hw_irq.h
+++ b/arch/arm/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Nothing to see here yet
  */
diff --git a/arch/arm/include/asm/hwcap.h b/arch/arm/include/asm/hwcap.h
index 6e183fd269fb..e31d9f1b8549 100644
--- a/arch/arm/include/asm/hwcap.h
+++ b/arch/arm/include/asm/hwcap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_HWCAP_H
 #define __ASMARM_HWCAP_H
 
diff --git a/arch/arm/include/asm/hypervisor.h b/arch/arm/include/asm/hypervisor.h
index b90d9e523d6f..df8524365637 100644
--- a/arch/arm/include/asm/hypervisor.h
+++ b/arch/arm/include/asm/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_HYPERVISOR_H
 #define _ASM_ARM_HYPERVISOR_H
 
diff --git a/arch/arm/include/asm/ide.h b/arch/arm/include/asm/ide.h
index b507ce8e5019..a81e0b0d6747 100644
--- a/arch/arm/include/asm/ide.h
+++ b/arch/arm/include/asm/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/arm/include/asm/ide.h
  *
diff --git a/arch/arm/include/asm/idmap.h b/arch/arm/include/asm/idmap.h
index bf863edb517d..73ba956e379f 100644
--- a/arch/arm/include/asm/idmap.h
+++ b/arch/arm/include/asm/idmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IDMAP_H
 #define __ASM_IDMAP_H
 
diff --git a/arch/arm/include/asm/insn.h b/arch/arm/include/asm/insn.h
index e96065da4dae..f20e08ac85ae 100644
--- a/arch/arm/include/asm/insn.h
+++ b/arch/arm/include/asm/insn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_INSN_H
 #define __ASM_ARM_INSN_H
 
diff --git a/arch/arm/include/asm/irq.h b/arch/arm/include/asm/irq.h
index e53638c8ed8a..b6f319606e30 100644
--- a/arch/arm/include/asm/irq.h
+++ b/arch/arm/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_IRQ_H
 #define __ASM_ARM_IRQ_H
 
diff --git a/arch/arm/include/asm/irq_work.h b/arch/arm/include/asm/irq_work.h
index 712d03e5973a..8895999834cc 100644
--- a/arch/arm/include/asm/irq_work.h
+++ b/arch/arm/include/asm/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_IRQ_WORK_H
 #define __ASM_ARM_IRQ_WORK_H
 
diff --git a/arch/arm/include/asm/irqflags.h b/arch/arm/include/asm/irqflags.h
index e6b70d9d084e..aeec7f24eb75 100644
--- a/arch/arm/include/asm/irqflags.h
+++ b/arch/arm/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_IRQFLAGS_H
 #define __ASM_ARM_IRQFLAGS_H
 
diff --git a/arch/arm/include/asm/jump_label.h b/arch/arm/include/asm/jump_label.h
index 34f7b6980d21..e12d7d096fc0 100644
--- a/arch/arm/include/asm/jump_label.h
+++ b/arch/arm/include/asm/jump_label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_JUMP_LABEL_H
 #define _ASM_ARM_JUMP_LABEL_H
 
diff --git a/arch/arm/include/asm/kexec.h b/arch/arm/include/asm/kexec.h
index 25021b798a1e..22751b5b5735 100644
--- a/arch/arm/include/asm/kexec.h
+++ b/arch/arm/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARM_KEXEC_H
 #define _ARM_KEXEC_H
 
diff --git a/arch/arm/include/asm/kgdb.h b/arch/arm/include/asm/kgdb.h
index 0a9d5dd93294..3b73fdcf3627 100644
--- a/arch/arm/include/asm/kgdb.h
+++ b/arch/arm/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ARM KGDB support
  *
diff --git a/arch/arm/include/asm/kmap_types.h b/arch/arm/include/asm/kmap_types.h
index 83eb2f772911..5590940ee43d 100644
--- a/arch/arm/include/asm/kmap_types.h
+++ b/arch/arm/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARM_KMAP_TYPES_H
 #define __ARM_KMAP_TYPES_H
 
diff --git a/arch/arm/include/asm/limits.h b/arch/arm/include/asm/limits.h
index 08d8c6600804..ab159371d786 100644
--- a/arch/arm/include/asm/limits.h
+++ b/arch/arm/include/asm/limits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PIPE_H
 #define __ASM_PIPE_H
 
diff --git a/arch/arm/include/asm/linkage.h b/arch/arm/include/asm/linkage.h
index 5a25632b1bc0..c4670694ada7 100644
--- a/arch/arm/include/asm/linkage.h
+++ b/arch/arm/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/arm/include/asm/mc146818rtc.h b/arch/arm/include/asm/mc146818rtc.h
index e8567bb99dfc..58922879a600 100644
--- a/arch/arm/include/asm/mc146818rtc.h
+++ b/arch/arm/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/arm/include/asm/mcs_spinlock.h b/arch/arm/include/asm/mcs_spinlock.h
index f652ad65840a..529d2cf4d06f 100644
--- a/arch/arm/include/asm/mcs_spinlock.h
+++ b/arch/arm/include/asm/mcs_spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MCS_LOCK_H
 #define __ASM_MCS_LOCK_H
 
diff --git a/arch/arm/include/asm/memblock.h b/arch/arm/include/asm/memblock.h
index bf47a6c110a2..b10fd358ccc5 100644
--- a/arch/arm/include/asm/memblock.h
+++ b/arch/arm/include/asm/memblock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_MEMBLOCK_H
 #define _ASM_ARM_MEMBLOCK_H
 
diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
index a5b47421059d..65669b9ce128 100644
--- a/arch/arm/include/asm/mmu.h
+++ b/arch/arm/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARM_MMU_H
 #define __ARM_MMU_H
 
diff --git a/arch/arm/include/asm/module.h b/arch/arm/include/asm/module.h
index ed2319663a1e..89ad0596033a 100644
--- a/arch/arm/include/asm/module.h
+++ b/arch/arm/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_MODULE_H
 #define _ASM_ARM_MODULE_H
 
diff --git a/arch/arm/include/asm/mpu.h b/arch/arm/include/asm/mpu.h
index c3247cc2fe08..0c3f774fa4b5 100644
--- a/arch/arm/include/asm/mpu.h
+++ b/arch/arm/include/asm/mpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARM_MPU_H
 #define __ARM_MPU_H
 
diff --git a/arch/arm/include/asm/nwflash.h b/arch/arm/include/asm/nwflash.h
index 04e5a557a884..0ec6f07c2d8a 100644
--- a/arch/arm/include/asm/nwflash.h
+++ b/arch/arm/include/asm/nwflash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FLASH_H
 #define _FLASH_H
 
diff --git a/arch/arm/include/asm/paravirt.h b/arch/arm/include/asm/paravirt.h
index 8435ff591386..d51e5cd31d01 100644
--- a/arch/arm/include/asm/paravirt.h
+++ b/arch/arm/include/asm/paravirt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_PARAVIRT_H
 #define _ASM_ARM_PARAVIRT_H
 
diff --git a/arch/arm/include/asm/patch.h b/arch/arm/include/asm/patch.h
index 77e054c2f6cd..0b48247c4600 100644
--- a/arch/arm/include/asm/patch.h
+++ b/arch/arm/include/asm/patch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARM_KERNEL_PATCH_H
 #define _ARM_KERNEL_PATCH_H
 
diff --git a/arch/arm/include/asm/pci.h b/arch/arm/include/asm/pci.h
index 396c92bcc0cf..960d9dc4f380 100644
--- a/arch/arm/include/asm/pci.h
+++ b/arch/arm/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_PCI_H
 #define ASMARM_PCI_H
 
diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index e9c9a117bd25..c7cdbb43ae7c 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -126,8 +126,7 @@ extern unsigned long profile_pc(struct pt_regs *regs);
 /*
  * kprobe-based event tracer support
  */
-#include <linux/stddef.h>
-#include <linux/types.h>
+#include <linux/compiler.h>
 #define MAX_REG_OFFSET (offsetof(struct pt_regs, ARM_ORIG_r0))
 
 extern int regs_query_register_offset(const char *name);
diff --git a/arch/arm/include/asm/sections.h b/arch/arm/include/asm/sections.h
index 803bbf2b20b8..63dfe1f10335 100644
--- a/arch/arm/include/asm/sections.h
+++ b/arch/arm/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_SECTIONS_H
 #define _ASM_ARM_SECTIONS_H
 
diff --git a/arch/arm/include/asm/shmparam.h b/arch/arm/include/asm/shmparam.h
index a5223b3a9bf9..367a9dac6150 100644
--- a/arch/arm/include/asm/shmparam.h
+++ b/arch/arm/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMARM_SHMPARAM_H
 #define _ASMARM_SHMPARAM_H
 
diff --git a/arch/arm/include/asm/signal.h b/arch/arm/include/asm/signal.h
index c0eb412aff04..65530a042009 100644
--- a/arch/arm/include/asm/signal.h
+++ b/arch/arm/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMARM_SIGNAL_H
 #define _ASMARM_SIGNAL_H
 
diff --git a/arch/arm/include/asm/smp_plat.h b/arch/arm/include/asm/smp_plat.h
index f9080717fc88..f2c36acf9886 100644
--- a/arch/arm/include/asm/smp_plat.h
+++ b/arch/arm/include/asm/smp_plat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ARM specific SMP header, this contains our implementation
  * details.
diff --git a/arch/arm/include/asm/smp_scu.h b/arch/arm/include/asm/smp_scu.h
index 5983f6bc62d5..800f5228939f 100644
--- a/arch/arm/include/asm/smp_scu.h
+++ b/arch/arm/include/asm/smp_scu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_ARCH_SCU_H
 #define __ASMARM_ARCH_SCU_H
 
diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
index 7b2899c2f7fc..312784ee9936 100644
--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_SMP_TWD_H
 #define __ASMARM_SMP_TWD_H
 
diff --git a/arch/arm/include/asm/sparsemem.h b/arch/arm/include/asm/sparsemem.h
index 73e5e8513751..d362233856a5 100644
--- a/arch/arm/include/asm/sparsemem.h
+++ b/arch/arm/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_SPARSEMEM_H
 #define ASMARM_SPARSEMEM_H
 
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index c030143c18c6..099c78fcf62d 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
@@ -52,8 +53,6 @@ static inline void dsb_sev(void)
  * memory.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned long tmp;
@@ -73,7 +72,7 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 
 	while (lockval.tickets.next != lockval.tickets.owner) {
 		wfe();
-		lockval.tickets.owner = ACCESS_ONCE(lock->tickets.owner);
+		lockval.tickets.owner = READ_ONCE(lock->tickets.owner);
 	}
 
 	smp_mb();
@@ -193,9 +192,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 	dsb_sev();
 }
 
-/* write_can_lock - would write_trylock() succeed? */
-#define arch_write_can_lock(x)		(ACCESS_ONCE((x)->lock) == 0)
-
 /*
  * Read locks are a bit more hairy:
  *  - Exclusively load the lock value.
@@ -273,14 +269,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 	}
 }
 
-/* read_can_lock - would read_trylock() succeed? */
-#define arch_read_can_lock(x)		(ACCESS_ONCE((x)->lock) < 0x80000000)
-
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/arm/include/asm/spinlock_types.h b/arch/arm/include/asm/spinlock_types.h
index 47663fcb10ad..5976958647fe 100644
--- a/arch/arm/include/asm/spinlock_types.h
+++ b/arch/arm/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_TYPES_H
 #define __ASM_SPINLOCK_TYPES_H
 
diff --git a/arch/arm/include/asm/stackprotector.h b/arch/arm/include/asm/stackprotector.h
index de003327be97..ef5f7b69443e 100644
--- a/arch/arm/include/asm/stackprotector.h
+++ b/arch/arm/include/asm/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * GCC stack protector support.
  *
diff --git a/arch/arm/include/asm/stacktrace.h b/arch/arm/include/asm/stacktrace.h
index 7722201ead19..2d76a2e29f05 100644
--- a/arch/arm/include/asm/stacktrace.h
+++ b/arch/arm/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_STACKTRACE_H
 #define __ASM_STACKTRACE_H
 
diff --git a/arch/arm/include/asm/string.h b/arch/arm/include/asm/string.h
index fe1c6af3a1b1..f54a3136aac6 100644
--- a/arch/arm/include/asm/string.h
+++ b/arch/arm/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_STRING_H
 #define __ASM_ARM_STRING_H
 
diff --git a/arch/arm/include/asm/suspend.h b/arch/arm/include/asm/suspend.h
index a61905c86732..452bbdcbcc83 100644
--- a/arch/arm/include/asm/suspend.h
+++ b/arch/arm/include/asm/suspend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_SUSPEND_H
 #define __ASM_ARM_SUSPEND_H
 
diff --git a/arch/arm/include/asm/swab.h b/arch/arm/include/asm/swab.h
index 537fc9b91889..c6051823048b 100644
--- a/arch/arm/include/asm/swab.h
+++ b/arch/arm/include/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/arm/include/asm/byteorder.h
  *
diff --git a/arch/arm/include/asm/switch_to.h b/arch/arm/include/asm/switch_to.h
index 12ebfcc1d539..d3e937dcee4d 100644
--- a/arch/arm/include/asm/switch_to.h
+++ b/arch/arm/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_SWITCH_TO_H
 #define __ASM_ARM_SWITCH_TO_H
 
diff --git a/arch/arm/include/asm/sync_bitops.h b/arch/arm/include/asm/sync_bitops.h
index 9732b8e11e63..39ff217136d1 100644
--- a/arch/arm/include/asm/sync_bitops.h
+++ b/arch/arm/include/asm/sync_bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SYNC_BITOPS_H__
 #define __ASM_SYNC_BITOPS_H__
 
diff --git a/arch/arm/include/asm/syscall.h b/arch/arm/include/asm/syscall.h
index e86c985b8c7a..06dea6bce293 100644
--- a/arch/arm/include/asm/syscall.h
+++ b/arch/arm/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Access to user system call parameters and results
  *
diff --git a/arch/arm/include/asm/system_info.h b/arch/arm/include/asm/system_info.h
index 3860cbd401ec..ef7fdb588b5f 100644
--- a/arch/arm/include/asm/system_info.h
+++ b/arch/arm/include/asm/system_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_SYSTEM_INFO_H
 #define __ASM_ARM_SYSTEM_INFO_H
 
diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h
index 8c4a89f5ce7d..78f6db114faf 100644
--- a/arch/arm/include/asm/system_misc.h
+++ b/arch/arm/include/asm/system_misc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_SYSTEM_MISC_H
 #define __ASM_ARM_SYSTEM_MISC_H
 
diff --git a/arch/arm/include/asm/therm.h b/arch/arm/include/asm/therm.h
index f002f0197d78..17b0bc9b5e9b 100644
--- a/arch/arm/include/asm/therm.h
+++ b/arch/arm/include/asm/therm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/include/asm/therm.h: Definitions for Dallas Semiconductor
  *  DS1620 thermometer driver (as used in the Rebel.com NetWinder)
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index 1d468b527b7b..776757d1604a 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -139,11 +139,10 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define TIF_NEED_RESCHED	1	/* rescheduling necessary */
 #define TIF_NOTIFY_RESUME	2	/* callback before returning to user */
 #define TIF_UPROBE		3	/* breakpointed or singlestepping */
-#define TIF_FSCHECK		4	/* Check FS is USER_DS on return */
-#define TIF_SYSCALL_TRACE	5	/* syscall trace active */
-#define TIF_SYSCALL_AUDIT	6	/* syscall auditing active */
-#define TIF_SYSCALL_TRACEPOINT	7	/* syscall tracepoint instrumentation */
-#define TIF_SECCOMP		8	/* seccomp syscall filtering active */
+#define TIF_SYSCALL_TRACE	4	/* syscall trace active */
+#define TIF_SYSCALL_AUDIT	5	/* syscall auditing active */
+#define TIF_SYSCALL_TRACEPOINT	6	/* syscall tracepoint instrumentation */
+#define TIF_SECCOMP		7	/* seccomp syscall filtering active */
 
 #define TIF_NOHZ		12	/* in adaptive nohz mode */
 #define TIF_USING_IWMMXT	17
@@ -154,7 +153,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
 #define _TIF_UPROBE		(1 << TIF_UPROBE)
-#define _TIF_FSCHECK		(1 << TIF_FSCHECK)
 #define _TIF_SYSCALL_TRACE	(1 << TIF_SYSCALL_TRACE)
 #define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
 #define _TIF_SYSCALL_TRACEPOINT	(1 << TIF_SYSCALL_TRACEPOINT)
@@ -168,9 +166,8 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 /*
  * Change these and you break ASM code in entry-common.S
  */
-#define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING |	\
-				 _TIF_NOTIFY_RESUME | _TIF_UPROBE |	\
-				 _TIF_FSCHECK)
+#define _TIF_WORK_MASK		(_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
+				 _TIF_NOTIFY_RESUME | _TIF_UPROBE)
 
 #endif /* __KERNEL__ */
 #endif /* __ASM_ARM_THREAD_INFO_H */
diff --git a/arch/arm/include/asm/tls.h b/arch/arm/include/asm/tls.h
index 5f833f7adba1..5a66c3b13c92 100644
--- a/arch/arm/include/asm/tls.h
+++ b/arch/arm/include/asm/tls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMARM_TLS_H
 #define __ASMARM_TLS_H
 
diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h
index 370f7a732900..5d88d2f22b2c 100644
--- a/arch/arm/include/asm/topology.h
+++ b/arch/arm/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_TOPOLOGY_H
 #define _ASM_ARM_TOPOLOGY_H
 
@@ -24,6 +25,14 @@ void init_cpu_topology(void);
 void store_cpu_topology(unsigned int cpuid);
 const struct cpumask *cpu_coregroup_mask(int cpu);
 
+#include <linux/arch_topology.h>
+
+/* Replace task scheduler's default frequency-invariant accounting */
+#define arch_scale_freq_capacity topology_get_freq_scale
+
+/* Replace task scheduler's default cpu-invariant accounting */
+#define arch_scale_cpu_capacity topology_get_cpu_scale
+
 #else
 
 static inline void init_cpu_topology(void) { }
diff --git a/arch/arm/include/asm/traps.h b/arch/arm/include/asm/traps.h
index 683d9230984a..f9a6c5fc3fd1 100644
--- a/arch/arm/include/asm/traps.h
+++ b/arch/arm/include/asm/traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMARM_TRAP_H
 #define _ASMARM_TRAP_H
 
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 87936dd5d151..0bf2347495f1 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -70,8 +70,6 @@ static inline void set_fs(mm_segment_t fs)
 {
 	current_thread_info()->addr_limit = fs;
 	modify_domain(DOMAIN_KERNEL, fs ? DOMAIN_CLIENT : DOMAIN_MANAGER);
-	/* On user-mode return, check fs is correct */
-	set_thread_flag(TIF_FSCHECK);
 }
 
 #define segment_eq(a, b)	((a) == (b))
diff --git a/arch/arm/include/asm/ucontext.h b/arch/arm/include/asm/ucontext.h
index 921d8274855c..3f0d95ab14b8 100644
--- a/arch/arm/include/asm/ucontext.h
+++ b/arch/arm/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMARM_UCONTEXT_H
 #define _ASMARM_UCONTEXT_H
 
diff --git a/arch/arm/include/asm/unaligned.h b/arch/arm/include/asm/unaligned.h
new file mode 100644
index 000000000000..ab905ffcf193
--- /dev/null
+++ b/arch/arm/include/asm/unaligned.h
@@ -0,0 +1,27 @@
+#ifndef __ASM_ARM_UNALIGNED_H
+#define __ASM_ARM_UNALIGNED_H
+
+/*
+ * We generally want to set CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS on ARMv6+,
+ * but we don't want to use linux/unaligned/access_ok.h since that can lead
+ * to traps on unaligned stm/ldm or strd/ldrd.
+ */
+#include <asm/byteorder.h>
+
+#if defined(__LITTLE_ENDIAN)
+# include <linux/unaligned/le_struct.h>
+# include <linux/unaligned/be_byteshift.h>
+# include <linux/unaligned/generic.h>
+# define get_unaligned	__get_unaligned_le
+# define put_unaligned	__put_unaligned_le
+#elif defined(__BIG_ENDIAN)
+# include <linux/unaligned/be_struct.h>
+# include <linux/unaligned/le_byteshift.h>
+# include <linux/unaligned/generic.h>
+# define get_unaligned	__get_unaligned_be
+# define put_unaligned	__put_unaligned_be
+#else
+# error need to define endianess
+#endif
+
+#endif /* __ASM_ARM_UNALIGNED_H */
diff --git a/arch/arm/include/asm/user.h b/arch/arm/include/asm/user.h
index 35917b3a97f9..c799a3c49342 100644
--- a/arch/arm/include/asm/user.h
+++ b/arch/arm/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARM_USER_H
 #define _ARM_USER_H
 
diff --git a/arch/arm/include/asm/v7m.h b/arch/arm/include/asm/v7m.h
index 1fd775c1bc5d..e6d9e29fcae4 100644
--- a/arch/arm/include/asm/v7m.h
+++ b/arch/arm/include/asm/v7m.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common defines for v7m cpus
  */
diff --git a/arch/arm/include/asm/vdso.h b/arch/arm/include/asm/vdso.h
index d0295f1dd1a3..9c99e817535e 100644
--- a/arch/arm/include/asm/vdso.h
+++ b/arch/arm/include/asm/vdso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_VDSO_H
 #define __ASM_VDSO_H
 
diff --git a/arch/arm/include/asm/vfp.h b/arch/arm/include/asm/vfp.h
index 22e414056a8c..7157d2a30a49 100644
--- a/arch/arm/include/asm/vfp.h
+++ b/arch/arm/include/asm/vfp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/include/asm/vfp.h
  *
diff --git a/arch/arm/include/asm/vfpmacros.h b/arch/arm/include/asm/vfpmacros.h
index 301c1db3e99b..ef5dfedacd8d 100644
--- a/arch/arm/include/asm/vfpmacros.h
+++ b/arch/arm/include/asm/vfpmacros.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/include/asm/vfpmacros.h
  *
diff --git a/arch/arm/include/asm/vga.h b/arch/arm/include/asm/vga.h
index 91f40217bfa5..7c0bee57855a 100644
--- a/arch/arm/include/asm/vga.h
+++ b/arch/arm/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_VGA_H
 #define ASMARM_VGA_H
 
diff --git a/arch/arm/include/asm/word-at-a-time.h b/arch/arm/include/asm/word-at-a-time.h
index 5831dce4b51c..352ab213520d 100644
--- a/arch/arm/include/asm/word-at-a-time.h
+++ b/arch/arm/include/asm/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARM_WORD_AT_A_TIME_H
 #define __ASM_ARM_WORD_AT_A_TIME_H
 
diff --git a/arch/arm/include/asm/xen/events.h b/arch/arm/include/asm/xen/events.h
index 620dc75362e5..c83086f745cf 100644
--- a/arch/arm/include/asm/xen/events.h
+++ b/arch/arm/include/asm/xen/events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_EVENTS_H
 #define _ASM_ARM_XEN_EVENTS_H
 
diff --git a/arch/arm/include/debug/palmchip.S b/arch/arm/include/debug/palmchip.S
index 6824b2d1c38e..aed59332e487 100644
--- a/arch/arm/include/debug/palmchip.S
+++ b/arch/arm/include/debug/palmchip.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/serial_reg.h>
 
 #undef UART_TX
diff --git a/arch/arm/include/debug/uncompress.h b/arch/arm/include/debug/uncompress.h
index 0e2949b0fae9..ff0b227290cb 100644
--- a/arch/arm/include/debug/uncompress.h
+++ b/arch/arm/include/debug/uncompress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_DEBUG_UNCOMPRESS
 extern void putc(int c);
 #else
diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
index 8e17fe80b55b..4d53de308ee0 100644
--- a/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
diff --git a/arch/arm/include/uapi/asm/auxvec.h b/arch/arm/include/uapi/asm/auxvec.h
index cb02a767a500..5c09da5965d4 100644
--- a/arch/arm/include/uapi/asm/auxvec.h
+++ b/arch/arm/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_AUXVEC_H
 #define __ASM_AUXVEC_H
 
diff --git a/arch/arm/include/uapi/asm/byteorder.h b/arch/arm/include/uapi/asm/byteorder.h
index 77379748b171..cb8406afe162 100644
--- a/arch/arm/include/uapi/asm/byteorder.h
+++ b/arch/arm/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  arch/arm/include/asm/byteorder.h
  *
diff --git a/arch/arm/include/uapi/asm/fcntl.h b/arch/arm/include/uapi/asm/fcntl.h
index a80b6607b2ef..e6b5d7141c05 100644
--- a/arch/arm/include/uapi/asm/fcntl.h
+++ b/arch/arm/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ARM_FCNTL_H
 #define _ARM_FCNTL_H
 
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h
index 20d12f230a2f..b5971dfa4b8c 100644
--- a/arch/arm/include/uapi/asm/hwcap.h
+++ b/arch/arm/include/uapi/asm/hwcap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASMARM_HWCAP_H
 #define _UAPI__ASMARM_HWCAP_H
 
diff --git a/arch/arm/include/uapi/asm/ioctls.h b/arch/arm/include/uapi/asm/ioctls.h
index 9c9629816128..1bfe2854fb51 100644
--- a/arch/arm/include/uapi/asm/ioctls.h
+++ b/arch/arm/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_ARM_IOCTLS_H
 #define __ASM_ARM_IOCTLS_H
 
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index 5db2d4c6a55f..1f57bbe82b6f 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 - Virtual Open Systems and Columbia University
  * Author: Christoffer Dall <c.dall@virtualopensystems.com>
diff --git a/arch/arm/include/uapi/asm/kvm_para.h b/arch/arm/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/arm/include/uapi/asm/kvm_para.h
+++ b/arch/arm/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/arm/include/uapi/asm/perf_regs.h b/arch/arm/include/uapi/asm/perf_regs.h
index ce59448458b2..a3c046174e6b 100644
--- a/arch/arm/include/uapi/asm/perf_regs.h
+++ b/arch/arm/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ARM_PERF_REGS_H
 #define _ASM_ARM_PERF_REGS_H
 
diff --git a/arch/arm/include/uapi/asm/posix_types.h b/arch/arm/include/uapi/asm/posix_types.h
index d2de9cbbcd9b..6bf11ad5d6ba 100644
--- a/arch/arm/include/uapi/asm/posix_types.h
+++ b/arch/arm/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  arch/arm/include/asm/posix_types.h
  *
diff --git a/arch/arm/include/uapi/asm/ptrace.h b/arch/arm/include/uapi/asm/ptrace.h
index 5af0ed1b825a..b67cda536c25 100644
--- a/arch/arm/include/uapi/asm/ptrace.h
+++ b/arch/arm/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  arch/arm/include/asm/ptrace.h
  *
diff --git a/arch/arm/include/uapi/asm/setup.h b/arch/arm/include/uapi/asm/setup.h
index 979ff4016404..6b335a9ff8c8 100644
--- a/arch/arm/include/uapi/asm/setup.h
+++ b/arch/arm/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  linux/include/asm/setup.h
  *
diff --git a/arch/arm/include/uapi/asm/sigcontext.h b/arch/arm/include/uapi/asm/sigcontext.h
index fc0b80b6a6fc..e223c65adabd 100644
--- a/arch/arm/include/uapi/asm/sigcontext.h
+++ b/arch/arm/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMARM_SIGCONTEXT_H
 #define _ASMARM_SIGCONTEXT_H
 
diff --git a/arch/arm/include/uapi/asm/signal.h b/arch/arm/include/uapi/asm/signal.h
index 33073bdcf091..9b4185ba4f8a 100644
--- a/arch/arm/include/uapi/asm/signal.h
+++ b/arch/arm/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASMARM_SIGNAL_H
 #define _UAPI_ASMARM_SIGNAL_H
 
diff --git a/arch/arm/include/uapi/asm/stat.h b/arch/arm/include/uapi/asm/stat.h
index 42c0c13999d5..9c6580bfc04d 100644
--- a/arch/arm/include/uapi/asm/stat.h
+++ b/arch/arm/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMARM_STAT_H
 #define _ASMARM_STAT_H
 
diff --git a/arch/arm/include/uapi/asm/statfs.h b/arch/arm/include/uapi/asm/statfs.h
index 079447c05ba7..177f08540079 100644
--- a/arch/arm/include/uapi/asm/statfs.h
+++ b/arch/arm/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMARM_STATFS_H
 #define _ASMARM_STATFS_H
 
diff --git a/arch/arm/include/uapi/asm/swab.h b/arch/arm/include/uapi/asm/swab.h
index 6fcb32a5c453..301aa8d8e320 100644
--- a/arch/arm/include/uapi/asm/swab.h
+++ b/arch/arm/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  arch/arm/include/asm/byteorder.h
  *
diff --git a/arch/arm/include/uapi/asm/types.h b/arch/arm/include/uapi/asm/types.h
index 9435a42f575e..1a667bc26510 100644
--- a/arch/arm/include/uapi/asm/types.h
+++ b/arch/arm/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_TYPES_H
 #define _UAPI_ASM_TYPES_H
 
diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h
index 28bd456494a3..39b2ad997e91 100644
--- a/arch/arm/include/uapi/asm/unistd.h
+++ b/arch/arm/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  arch/arm/include/asm/unistd.h
  *
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index ad325a8c7e1e..499f978fb1fd 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/kernel/atags.h b/arch/arm/kernel/atags.h
index edfa2268c127..201100226301 100644
--- a/arch/arm/kernel/atags.h
+++ b/arch/arm/kernel/atags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 void convert_to_tag_list(struct tag *tags);
 
 #ifdef CONFIG_ATAGS
diff --git a/arch/arm/kernel/atags_proc.c b/arch/arm/kernel/atags_proc.c
index 5a3379055f55..312cb89ec364 100644
--- a/arch/arm/kernel/atags_proc.c
+++ b/arch/arm/kernel/atags_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <asm/setup.h>
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index c1809fb549dd..0cd0aefb3a8f 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/kernel/bios32.c
  *
diff --git a/arch/arm/kernel/debug.S b/arch/arm/kernel/debug.S
index ea9646cc2a0e..0a498cb3fad8 100644
--- a/arch/arm/kernel/debug.S
+++ b/arch/arm/kernel/debug.S
@@ -115,7 +115,11 @@ ENTRY(printascii)
 		mov	r1, r0
 		mov	r0, #0x04		@ SYS_WRITE0
 	ARM(	svc	#0x123456	)
+#ifdef CONFIG_CPU_V7M
+	THUMB(	bkpt	#0xab		)
+#else
 	THUMB(	svc	#0xab		)
+#endif
 		ret	lr
 ENDPROC(printascii)
 
@@ -124,7 +128,11 @@ ENTRY(printch)
 		strb	r0, [r1]
 		mov	r0, #0x03		@ SYS_WRITEC
 	ARM(	svc	#0x123456	)
+#ifdef CONFIG_CPU_V7M
+	THUMB(	bkpt	#0xab		)
+#else
 	THUMB(	svc	#0xab		)
+#endif
 		ret	lr
 ENDPROC(printch)
 
diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c
index d0d1e83150c9..846dda2f3c48 100644
--- a/arch/arm/kernel/elf.c
+++ b/arch/arm/kernel/elf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/personality.h>
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index ca3614dc6938..99c908226065 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -12,6 +12,7 @@
 #include <asm/unistd.h>
 #include <asm/ftrace.h>
 #include <asm/unwind.h>
+#include <asm/memory.h>
 #ifdef CONFIG_AEABI
 #include <asm/unistd-oabi.h>
 #endif
@@ -48,12 +49,14 @@ ret_fast_syscall:
  UNWIND(.fnstart	)
  UNWIND(.cantunwind	)
 	disable_irq_notrace			@ disable interrupts
+	ldr	r2, [tsk, #TI_ADDR_LIMIT]
+	cmp	r2, #TASK_SIZE
+	blne	addr_limit_check_failed
 	ldr	r1, [tsk, #TI_FLAGS]		@ re-check for syscall tracing
-	tst	r1, #_TIF_SYSCALL_WORK
-	bne	fast_work_pending
-	tst	r1, #_TIF_WORK_MASK
+	tst	r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
 	bne	fast_work_pending
 
+
 	/* perform architecture specific actions before user return */
 	arch_ret_to_user r1, lr
 
@@ -76,16 +79,16 @@ ret_fast_syscall:
  UNWIND(.cantunwind	)
 	str	r0, [sp, #S_R0 + S_OFF]!	@ save returned r0
 	disable_irq_notrace			@ disable interrupts
+	ldr	r2, [tsk, #TI_ADDR_LIMIT]
+	cmp	r2, #TASK_SIZE
+	blne	addr_limit_check_failed
 	ldr	r1, [tsk, #TI_FLAGS]		@ re-check for syscall tracing
-	tst	r1, #_TIF_SYSCALL_WORK
-	bne	fast_work_pending
-	tst	r1, #_TIF_WORK_MASK
+	tst	r1, #_TIF_SYSCALL_WORK | _TIF_WORK_MASK
 	beq	no_work_pending
  UNWIND(.fnend		)
 ENDPROC(ret_fast_syscall)
 
 	/* Slower path - fall through to work_pending */
-fast_work_pending:
 #endif
 
 	tst	r1, #_TIF_SYSCALL_WORK
@@ -111,6 +114,9 @@ ENTRY(ret_to_user)
 ret_slow_syscall:
 	disable_irq_notrace			@ disable interrupts
 ENTRY(ret_to_user_from_irq)
+	ldr	r2, [tsk, #TI_ADDR_LIMIT]
+	cmp	r2, #TASK_SIZE
+	blne	addr_limit_check_failed
 	ldr	r1, [tsk, #TI_FLAGS]
 	tst	r1, #_TIF_WORK_MASK
 	bne	slow_work_pending
diff --git a/arch/arm/kernel/entry-header.S b/arch/arm/kernel/entry-header.S
index 6391728c8f03..d523cd8439a3 100644
--- a/arch/arm/kernel/entry-header.S
+++ b/arch/arm/kernel/entry-header.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 #include <linux/linkage.h>
 
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c
index 059c3da0fee3..cd1234c103fc 100644
--- a/arch/arm/kernel/fiq.c
+++ b/arch/arm/kernel/fiq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/kernel/fiq.c
  *
diff --git a/arch/arm/kernel/insn.c b/arch/arm/kernel/insn.c
index b760340b7014..2e844b70386b 100644
--- a/arch/arm/kernel/insn.c
+++ b/arch/arm/kernel/insn.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <asm/opcodes.h>
diff --git a/arch/arm/kernel/io.c b/arch/arm/kernel/io.c
index eedefe050022..60b621295d6c 100644
--- a/arch/arm/kernel/io.c
+++ b/arch/arm/kernel/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/types.h>
 #include <linux/io.h>
diff --git a/arch/arm/kernel/jump_label.c b/arch/arm/kernel/jump_label.c
index 845a5dd9c42b..90bce3d9928e 100644
--- a/arch/arm/kernel/jump_label.c
+++ b/arch/arm/kernel/jump_label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/jump_label.h>
 #include <asm/patch.h>
diff --git a/arch/arm/kernel/kgdb.c b/arch/arm/kernel/kgdb.c
index 1bb4c40a3135..caa0dbe3dc61 100644
--- a/arch/arm/kernel/kgdb.c
+++ b/arch/arm/kernel/kgdb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/kernel/kgdb.c
  *
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index fe1419eeb932..6b38d7a634c1 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * machine_kexec.c - handle transition of Linux booting another kernel
  */
diff --git a/arch/arm/kernel/module.lds b/arch/arm/kernel/module.lds
index eacb5c67f61e..79cb6af565e5 100644
--- a/arch/arm/kernel/module.lds
+++ b/arch/arm/kernel/module.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 SECTIONS {
 	.plt : { BYTE(0) }
 	.init.plt : { BYTE(0) }
diff --git a/arch/arm/kernel/patch.c b/arch/arm/kernel/patch.c
index a1a34722c655..a50dc00d79a2 100644
--- a/arch/arm/kernel/patch.c
+++ b/arch/arm/kernel/patch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/spinlock.h>
 #include <linux/kprobes.h>
diff --git a/arch/arm/kernel/perf_callchain.c b/arch/arm/kernel/perf_callchain.c
index 22bf1f64d99a..08e43a32a693 100644
--- a/arch/arm/kernel/perf_callchain.c
+++ b/arch/arm/kernel/perf_callchain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM callchain support
  *
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c
index 8226d0b71fd3..1d7061a38922 100644
--- a/arch/arm/kernel/perf_event_v6.c
+++ b/arch/arm/kernel/perf_event_v6.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARMv6 Performance counter handling code.
  *
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c
index ab6522b43659..870b66c1e4ef 100644
--- a/arch/arm/kernel/perf_event_v7.c
+++ b/arch/arm/kernel/perf_event_v7.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARMv7 Cortex-A8 and Cortex-A9 Performance Events handling code.
  *
diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c
index 0e51f5e4f879..fcf218da660e 100644
--- a/arch/arm/kernel/perf_event_xscale.c
+++ b/arch/arm/kernel/perf_event_xscale.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARMv5 [xscale] Performance counter handling code.
  *
diff --git a/arch/arm/kernel/perf_regs.c b/arch/arm/kernel/perf_regs.c
index c366b83bf955..05fe92aa7d98 100644
--- a/arch/arm/kernel/perf_regs.c
+++ b/arch/arm/kernel/perf_regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/arch/arm/kernel/reboot.h b/arch/arm/kernel/reboot.h
index bf7a0b1f076e..189ab81b77b6 100644
--- a/arch/arm/kernel/reboot.h
+++ b/arch/arm/kernel/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef REBOOT_H
 #define REBOOT_H
 
diff --git a/arch/arm/kernel/relocate_kernel.S b/arch/arm/kernel/relocate_kernel.S
index 35e72585ec1d..7eaa2ae7aff5 100644
--- a/arch/arm/kernel/relocate_kernel.S
+++ b/arch/arm/kernel/relocate_kernel.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * relocate_kernel.S - put the kernel image in place to boot
  */
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index e2de50bf8742..b67ae12503f3 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -614,10 +614,6 @@ do_work_pending(struct pt_regs *regs, unsigned int thread_flags, int syscall)
 	 * Update the trace code with the current status.
 	 */
 	trace_hardirqs_off();
-
-	/* Check valid user FS if needed */
-	addr_limit_user_check();
-
 	do {
 		if (likely(thread_flags & _TIF_NEED_RESCHED)) {
 			schedule();
@@ -678,3 +674,9 @@ struct page *get_signal_page(void)
 
 	return page;
 }
+
+/* Defer to generic check */
+asmlinkage void addr_limit_check_failed(void)
+{
+	addr_limit_user_check();
+}
diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index 9f08d214d05a..a8257fc9cf2a 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <linux/threads.h>
 #include <asm/asm-offsets.h>
diff --git a/arch/arm/kernel/suspend.c b/arch/arm/kernel/suspend.c
index ef794c799cb6..a40ebb7c0896 100644
--- a/arch/arm/kernel/suspend.c
+++ b/arch/arm/kernel/suspend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/mm_types.h>
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 948c648fea00..0fcd82f01388 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -154,30 +154,26 @@ static void dump_mem(const char *lvl, const char *str, unsigned long bottom,
 	set_fs(fs);
 }
 
-static void dump_instr(const char *lvl, struct pt_regs *regs)
+static void __dump_instr(const char *lvl, struct pt_regs *regs)
 {
 	unsigned long addr = instruction_pointer(regs);
 	const int thumb = thumb_mode(regs);
 	const int width = thumb ? 4 : 8;
-	mm_segment_t fs;
 	char str[sizeof("00000000 ") * 5 + 2 + 1], *p = str;
 	int i;
 
 	/*
-	 * We need to switch to kernel mode so that we can use __get_user
-	 * to safely read from kernel space.  Note that we now dump the
-	 * code first, just in case the backtrace kills us.
+	 * Note that we now dump the code first, just in case the backtrace
+	 * kills us.
 	 */
-	fs = get_fs();
-	set_fs(KERNEL_DS);
 
 	for (i = -4; i < 1 + !!thumb; i++) {
 		unsigned int val, bad;
 
 		if (thumb)
-			bad = __get_user(val, &((u16 *)addr)[i]);
+			bad = get_user(val, &((u16 *)addr)[i]);
 		else
-			bad = __get_user(val, &((u32 *)addr)[i]);
+			bad = get_user(val, &((u32 *)addr)[i]);
 
 		if (!bad)
 			p += sprintf(p, i == 0 ? "(%0*x) " : "%0*x ",
@@ -188,8 +184,20 @@ static void dump_instr(const char *lvl, struct pt_regs *regs)
 		}
 	}
 	printk("%sCode: %s\n", lvl, str);
+}
 
-	set_fs(fs);
+static void dump_instr(const char *lvl, struct pt_regs *regs)
+{
+	mm_segment_t fs;
+
+	if (!user_mode(regs)) {
+		fs = get_fs();
+		set_fs(KERNEL_DS);
+		__dump_instr(lvl, regs);
+		set_fs(fs);
+	} else {
+		__dump_instr(lvl, regs);
+	}
 }
 
 #ifdef CONFIG_ARM_UNWIND
diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S
index 8265b116218d..0951df916b85 100644
--- a/arch/arm/kernel/vmlinux-xip.lds.S
+++ b/arch/arm/kernel/vmlinux-xip.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make ARM Linux kernel
  * taken from the i386 version by Russell King
  * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index c83a7ba737d6..1845a5affb44 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make ARM Linux kernel
  * taken from the i386 version by Russell King
  * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index 90d0176fb30d..f24628db5409 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
index d9beee652d36..f550abd64a25 100644
--- a/arch/arm/kvm/Makefile
+++ b/arch/arm/kvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Kernel-based Virtual Machine module
 #
diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c
index 0064b86a2c87..30a13647c54c 100644
--- a/arch/arm/kvm/emulate.c
+++ b/arch/arm/kvm/emulate.c
@@ -227,7 +227,7 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu)
 	u32 return_offset = (is_thumb) ? 2 : 4;
 
 	kvm_update_psr(vcpu, UND_MODE);
-	*vcpu_reg(vcpu, 14) = *vcpu_pc(vcpu) - return_offset;
+	*vcpu_reg(vcpu, 14) = *vcpu_pc(vcpu) + return_offset;
 
 	/* Branch to exception vector */
 	*vcpu_pc(vcpu) = exc_vector_base(vcpu) + vect_offset;
@@ -239,10 +239,8 @@ void kvm_inject_undefined(struct kvm_vcpu *vcpu)
  */
 static void inject_abt(struct kvm_vcpu *vcpu, bool is_pabt, unsigned long addr)
 {
-	unsigned long cpsr = *vcpu_cpsr(vcpu);
-	bool is_thumb = (cpsr & PSR_T_BIT);
 	u32 vect_offset;
-	u32 return_offset = (is_thumb) ? 4 : 0;
+	u32 return_offset = (is_pabt) ? 4 : 8;
 	bool is_lpae;
 
 	kvm_update_psr(vcpu, ABT_MODE);
diff --git a/arch/arm/kvm/hyp/Makefile b/arch/arm/kvm/hyp/Makefile
index 8679405b0b2b..5638ce0c9524 100644
--- a/arch/arm/kvm/hyp/Makefile
+++ b/arch/arm/kvm/hyp/Makefile
@@ -1,8 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Kernel-based Virtual Machine module, HYP part
 #
 
-ccflags-y += -fno-stack-protector
+ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
 
 KVM=../../../../virt/kvm
 
diff --git a/arch/arm/kvm/trace.h b/arch/arm/kvm/trace.h
index b0d10648c486..69a9d62a0ac6 100644
--- a/arch/arm/kvm/trace.h
+++ b/arch/arm/kvm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_ARM_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_ARM_KVM_H
 
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index 27f4d96258a2..4cb0b9624d8f 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/arm/lib/Makefile
 #
diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index 7d807cfd8ef5..93cddab73072 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/assembler.h>
 #include <asm/unwind.h>
 
diff --git a/arch/arm/lib/bswapsdi2.S b/arch/arm/lib/bswapsdi2.S
index 07cda737bb11..591ba077e874 100644
--- a/arch/arm/lib/bswapsdi2.S
+++ b/arch/arm/lib/bswapsdi2.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 
diff --git a/arch/arm/mach-actions/Kconfig b/arch/arm/mach-actions/Kconfig
index ad9c5c89c683..b5e0ac965ec0 100644
--- a/arch/arm/mach-actions/Kconfig
+++ b/arch/arm/mach-actions/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_ACTIONS
 	bool "Actions Semi SoCs"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-alpine/Kconfig b/arch/arm/mach-alpine/Kconfig
index b41838a58ae4..e3cbb07fe1b4 100644
--- a/arch/arm/mach-alpine/Kconfig
+++ b/arch/arm/mach-alpine/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_ALPINE
 	bool "Annapurna Labs Alpine platform"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index ee34aa34cc51..4ea93c9df77b 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 5036f996e694..849014c01cf4 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -533,8 +533,8 @@ static void __init at91_pm_backup_init(void)
 	}
 
 	pm_bu->suspended = 0;
-	pm_bu->canary = virt_to_phys(&canary);
-	pm_bu->resume = virt_to_phys(cpu_resume);
+	pm_bu->canary = __pa_symbol(&canary);
+	pm_bu->resume = __pa_symbol(cpu_resume);
 
 	return;
 
diff --git a/arch/arm/mach-at91/pm_data-offsets.c b/arch/arm/mach-at91/pm_data-offsets.c
index c0a73e62b725..f2d893c03cd9 100644
--- a/arch/arm/mach-at91/pm_data-offsets.c
+++ b/arch/arm/mach-at91/pm_data-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/stddef.h>
 #include <linux/kbuild.h>
 #include "pm.h"
diff --git a/arch/arm/mach-axxia/Kconfig b/arch/arm/mach-axxia/Kconfig
index fe627cbcfdc5..bb2ce1c63fd9 100644
--- a/arch/arm/mach-axxia/Kconfig
+++ b/arch/arm/mach-axxia/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_AXXIA
 	bool "LSI Axxia platforms"
 	depends on ARCH_MULTI_V7 && ARM_LPAE
diff --git a/arch/arm/mach-axxia/Makefile b/arch/arm/mach-axxia/Makefile
index ec4f68b460c6..8df8fe76ad47 100644
--- a/arch/arm/mach-axxia/Makefile
+++ b/arch/arm/mach-axxia/Makefile
@@ -1,2 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				+= axxia.o
 obj-$(CONFIG_SMP)		+= platsmp.o
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 73be3d578851..5d2925e2ce1f 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_BCM
 	bool "Broadcom SoC Support"
 	depends on ARCH_MULTI_V6_V7
diff --git a/arch/arm/mach-bcm/bcm63xx_smp.h b/arch/arm/mach-bcm/bcm63xx_smp.h
index 9c6d50e2b111..4e742604a0fd 100644
--- a/arch/arm/mach-bcm/bcm63xx_smp.h
+++ b/arch/arm/mach-bcm/bcm63xx_smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM63XX_SMP_H
 #define __BCM63XX_SMP_H
 
diff --git a/arch/arm/mach-clps711x/Kconfig b/arch/arm/mach-clps711x/Kconfig
index f385b1fcafef..fc9188b54dd6 100644
--- a/arch/arm/mach-clps711x/Kconfig
+++ b/arch/arm/mach-clps711x/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_CLPS711X
 	bool "Cirrus Logic EP721x/EP731x-based"
 	depends on ARCH_MULTI_V4T
diff --git a/arch/arm/mach-clps711x/Makefile b/arch/arm/mach-clps711x/Makefile
index bd0b7b5d6e9d..f18f330f5364 100644
--- a/arch/arm/mach-clps711x/Makefile
+++ b/arch/arm/mach-clps711x/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += board-dt.o
diff --git a/arch/arm/mach-cns3xxx/Kconfig b/arch/arm/mach-cns3xxx/Kconfig
index 5fd836be2701..1ecf5466931e 100644
--- a/arch/arm/mach-cns3xxx/Kconfig
+++ b/arch/arm/mach-cns3xxx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_CNS3XXX
 	bool "Cavium Networks CNS3XXX family"
 	depends on ARCH_MULTI_V6
diff --git a/arch/arm/mach-cns3xxx/Makefile b/arch/arm/mach-cns3xxx/Makefile
index a1ff10848698..52ca6ed62304 100644
--- a/arch/arm/mach-cns3xxx/Makefile
+++ b/arch/arm/mach-cns3xxx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ARCH_CNS3XXX)		+= cns3xxx.o
 cns3xxx-y				+= core.o pm.o
 cns3xxx-$(CONFIG_ATAGS)			+= devices.o
diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 36c8f5324e43..05c3eecf47cb 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ARCH_DAVINCI
 
 config AINTC
diff --git a/arch/arm/mach-davinci/Makefile b/arch/arm/mach-davinci/Makefile
index df96ca9eab6d..4e8178050027 100644
--- a/arch/arm/mach-davinci/Makefile
+++ b/arch/arm/mach-davinci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-davinci/Makefile.boot b/arch/arm/mach-davinci/Makefile.boot
index 4b81601754a2..d36b251f325b 100644
--- a/arch/arm/mach-davinci/Makefile.boot
+++ b/arch/arm/mach-davinci/Makefile.boot
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 zreladdr-$(CONFIG_ARCH_DAVINCI_DA8XX)		+= 0xc0008000
 params_phys-$(CONFIG_ARCH_DAVINCI_DA8XX)	:= 0xc0000100
 initrd_phys-$(CONFIG_ARCH_DAVINCI_DA8XX)	:= 0xc0800000
diff --git a/arch/arm/mach-davinci/asp.h b/arch/arm/mach-davinci/asp.h
index 1128e1d8e4b4..495aa6907cbc 100644
--- a/arch/arm/mach-davinci/asp.h
+++ b/arch/arm/mach-davinci/asp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * TI DaVinci Audio definitions
  */
diff --git a/arch/arm/mach-davinci/ddr2.h b/arch/arm/mach-davinci/ddr2.h
index c19e047d0e6a..4f7d7824b0c9 100644
--- a/arch/arm/mach-davinci/ddr2.h
+++ b/arch/arm/mach-davinci/ddr2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define DDR2_SDRCR_OFFSET	0xc
 #define DDR2_SRPD_BIT		(1 << 23)
 #define DDR2_MCLKSTOPEN_BIT	(1 << 30)
diff --git a/arch/arm/mach-davinci/usb-da8xx.c b/arch/arm/mach-davinci/usb-da8xx.c
index 9a6af0bd5dc3..d480a02e1298 100644
--- a/arch/arm/mach-davinci/usb-da8xx.c
+++ b/arch/arm/mach-davinci/usb-da8xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DA8xx USB
  */
diff --git a/arch/arm/mach-davinci/usb.c b/arch/arm/mach-davinci/usb.c
index 0e7e89c1f331..31ed7aa47227 100644
--- a/arch/arm/mach-davinci/usb.c
+++ b/arch/arm/mach-davinci/usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB
  */
diff --git a/arch/arm/mach-digicolor/Kconfig b/arch/arm/mach-digicolor/Kconfig
index 9d05c6c4181d..90394433c405 100644
--- a/arch/arm/mach-digicolor/Kconfig
+++ b/arch/arm/mach-digicolor/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_DIGICOLOR
 	bool "Conexant Digicolor SoC Support"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-dove/Kconfig b/arch/arm/mach-dove/Kconfig
index 0bd6d894c597..7747fe64420a 100644
--- a/arch/arm/mach-dove/Kconfig
+++ b/arch/arm/mach-dove/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ARCH_DOVE
 
 menu "Marvell Dove Implementations"
diff --git a/arch/arm/mach-dove/Makefile b/arch/arm/mach-dove/Makefile
index b608a21919fb..cdf163cab738 100644
--- a/arch/arm/mach-dove/Makefile
+++ b/arch/arm/mach-dove/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				+= common.o
 obj-$(CONFIG_DOVE_LEGACY)	+= irq.o mpp.o
 obj-$(CONFIG_PCI)		+= pcie.o
diff --git a/arch/arm/mach-dove/mpp.h b/arch/arm/mach-dove/mpp.h
index fbec7c52bfac..2e4b89c86ca8 100644
--- a/arch/arm/mach-dove/mpp.h
+++ b/arch/arm/mach-dove/mpp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_DOVE_MPP_CODED_H
 #define __ARCH_DOVE_MPP_CODED_H
 
diff --git a/arch/arm/mach-ebsa110/io.c b/arch/arm/mach-ebsa110/io.c
index b57980b435fd..3c44dd3596ea 100644
--- a/arch/arm/mach-ebsa110/io.c
+++ b/arch/arm/mach-ebsa110/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mach-ebsa110/isamem.c
  *
diff --git a/arch/arm/mach-efm32/dtmachine.c b/arch/arm/mach-efm32/dtmachine.c
index 2367495193c1..e9364b843641 100644
--- a/arch/arm/mach-efm32/dtmachine.c
+++ b/arch/arm/mach-efm32/dtmachine.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 
 #include <asm/v7m.h>
diff --git a/arch/arm/mach-ep93xx/Makefile b/arch/arm/mach-ep93xx/Makefile
index b7ae4345ac08..86768495f61d 100644
--- a/arch/arm/mach-ep93xx/Makefile
+++ b/arch/arm/mach-ep93xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
index c64d74246602..6839ea032e58 100644
--- a/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
+++ b/arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-ep93xx/include/mach/ep93xx-regs.h
  */
diff --git a/arch/arm/mach-ep93xx/include/mach/gpio-ep93xx.h b/arch/arm/mach-ep93xx/include/mach/gpio-ep93xx.h
index 6d7c571a519f..242af4a401ea 100644
--- a/arch/arm/mach-ep93xx/include/mach/gpio-ep93xx.h
+++ b/arch/arm/mach-ep93xx/include/mach/gpio-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Include file for the EP93XX GPIO controller machine specifics */
 
 #ifndef __GPIO_EP93XX_H
diff --git a/arch/arm/mach-ep93xx/include/mach/hardware.h b/arch/arm/mach-ep93xx/include/mach/hardware.h
index efcd47815a91..8938906e780a 100644
--- a/arch/arm/mach-ep93xx/include/mach/hardware.h
+++ b/arch/arm/mach-ep93xx/include/mach/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-ep93xx/include/mach/hardware.h
  */
diff --git a/arch/arm/mach-ep93xx/include/mach/irqs.h b/arch/arm/mach-ep93xx/include/mach/irqs.h
index ff98390bbf0f..244daf83ce6d 100644
--- a/arch/arm/mach-ep93xx/include/mach/irqs.h
+++ b/arch/arm/mach-ep93xx/include/mach/irqs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-ep93xx/include/mach/irqs.h
  */
diff --git a/arch/arm/mach-ep93xx/include/mach/platform.h b/arch/arm/mach-ep93xx/include/mach/platform.h
index db0839691ef5..3bbe1591013e 100644
--- a/arch/arm/mach-ep93xx/include/mach/platform.h
+++ b/arch/arm/mach-ep93xx/include/mach/platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-ep93xx/include/mach/platform.h
  */
diff --git a/arch/arm/mach-ep93xx/timer-ep93xx.c b/arch/arm/mach-ep93xx/timer-ep93xx.c
index 874cbc91b669..de998830f534 100644
--- a/arch/arm/mach-ep93xx/timer-ep93xx.c
+++ b/arch/arm/mach-ep93xx/timer-ep93xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/clocksource.h>
diff --git a/arch/arm/mach-ep93xx/ts72xx.h b/arch/arm/mach-ep93xx/ts72xx.h
index 2255ba29fdd6..b89850f1a965 100644
--- a/arch/arm/mach-ep93xx/ts72xx.h
+++ b/arch/arm/mach-ep93xx/ts72xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-ep93xx/include/mach/ts72xx.h
  */
diff --git a/arch/arm/mach-footbridge/Makefile b/arch/arm/mach-footbridge/Makefile
index e83d5c8396ff..a09f1041f141 100644
--- a/arch/arm/mach-footbridge/Makefile
+++ b/arch/arm/mach-footbridge/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-footbridge/cats-hw.c b/arch/arm/mach-footbridge/cats-hw.c
index 8f05489671b7..e575dc0698cd 100644
--- a/arch/arm/mach-footbridge/cats-hw.c
+++ b/arch/arm/mach-footbridge/cats-hw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/cats-hw.c
  *
diff --git a/arch/arm/mach-footbridge/cats-pci.c b/arch/arm/mach-footbridge/cats-pci.c
index 5cec2567c9c5..0b2fd7e2e9b4 100644
--- a/arch/arm/mach-footbridge/cats-pci.c
+++ b/arch/arm/mach-footbridge/cats-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/cats-pci.c
  *
diff --git a/arch/arm/mach-footbridge/common.h b/arch/arm/mach-footbridge/common.h
index b911e5587ecf..e12587db59c4 100644
--- a/arch/arm/mach-footbridge/common.h
+++ b/arch/arm/mach-footbridge/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/reboot.h>
 
 extern void footbridge_timer_init(void);
diff --git a/arch/arm/mach-footbridge/dc21285-timer.c b/arch/arm/mach-footbridge/dc21285-timer.c
index 75395a720e63..f76212d2dbf1 100644
--- a/arch/arm/mach-footbridge/dc21285-timer.c
+++ b/arch/arm/mach-footbridge/dc21285-timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mach-footbridge/dc21285-timer.c
  *
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index 96a3d73ef4bf..e7b350f18f5f 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -136,19 +136,14 @@ struct pci_ops dc21285_ops = {
 static struct timer_list serr_timer;
 static struct timer_list perr_timer;
 
-static void dc21285_enable_error(unsigned long __data)
+static void dc21285_enable_error(struct timer_list *timer)
 {
-	switch (__data) {
-	case IRQ_PCI_SERR:
-		del_timer(&serr_timer);
-		break;
-
-	case IRQ_PCI_PERR:
-		del_timer(&perr_timer);
-		break;
-	}
+	del_timer(timer);
 
-	enable_irq(__data);
+	if (timer == &serr_timer)
+		enable_irq(IRQ_PCI_SERR);
+	else if (timer == &perr_timer)
+		enable_irq(IRQ_PCI_PERR);
 }
 
 /*
@@ -323,13 +318,8 @@ void __init dc21285_preinit(void)
 		*CSR_PCICMD = (*CSR_PCICMD & 0xffff) | PCICMD_ERROR_BITS;
 	}
 
-	init_timer(&serr_timer);
-	init_timer(&perr_timer);
-
-	serr_timer.data = IRQ_PCI_SERR;
-	serr_timer.function = dc21285_enable_error;
-	perr_timer.data = IRQ_PCI_PERR;
-	perr_timer.function = dc21285_enable_error;
+	timer_setup(&serr_timer, dc21285_enable_error, 0);
+	timer_setup(&perr_timer, dc21285_enable_error, 0);
 
 	/*
 	 * We don't care if these fail.
diff --git a/arch/arm/mach-footbridge/dma.c b/arch/arm/mach-footbridge/dma.c
index 22536b85a81d..86618074a7a5 100644
--- a/arch/arm/mach-footbridge/dma.c
+++ b/arch/arm/mach-footbridge/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/kernel/dma-ebsa285.c
  *
diff --git a/arch/arm/mach-footbridge/ebsa285-pci.c b/arch/arm/mach-footbridge/ebsa285-pci.c
index fd12d8a36dc5..6f28aaa9ca79 100644
--- a/arch/arm/mach-footbridge/ebsa285-pci.c
+++ b/arch/arm/mach-footbridge/ebsa285-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/ebsa285-pci.c
  *
diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c
index aee8300f3490..21cf9a358b90 100644
--- a/arch/arm/mach-footbridge/ebsa285.c
+++ b/arch/arm/mach-footbridge/ebsa285.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/ebsa285.c
  *
diff --git a/arch/arm/mach-footbridge/include/mach/irqs.h b/arch/arm/mach-footbridge/include/mach/irqs.h
index 61c714c4920e..a5f41846ab9c 100644
--- a/arch/arm/mach-footbridge/include/mach/irqs.h
+++ b/arch/arm/mach-footbridge/include/mach/irqs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-footbridge/include/mach/irqs.h
  *
diff --git a/arch/arm/mach-footbridge/include/mach/isa-dma.h b/arch/arm/mach-footbridge/include/mach/isa-dma.h
index 5bd4a0d338a8..8a1b991076e1 100644
--- a/arch/arm/mach-footbridge/include/mach/isa-dma.h
+++ b/arch/arm/mach-footbridge/include/mach/isa-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/arm/mach-footbridge/include/mach/isa-dma.h
  *
diff --git a/arch/arm/mach-footbridge/isa-rtc.c b/arch/arm/mach-footbridge/isa-rtc.c
index 07fde4051f78..b8f741a3a37e 100644
--- a/arch/arm/mach-footbridge/isa-rtc.c
+++ b/arch/arm/mach-footbridge/isa-rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/arm/mach-footbridge/isa-rtc.c
  *
diff --git a/arch/arm/mach-footbridge/isa-timer.c b/arch/arm/mach-footbridge/isa-timer.c
index b73f52e196b9..82f45591fb2c 100644
--- a/arch/arm/mach-footbridge/isa-timer.c
+++ b/arch/arm/mach-footbridge/isa-timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mach-footbridge/isa-timer.c
  *
diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index cdee08c6d239..5f7265b1b34c 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/netwinder-hw.c
  *
diff --git a/arch/arm/mach-footbridge/netwinder-pci.c b/arch/arm/mach-footbridge/netwinder-pci.c
index 0fba5134e4fe..9473aa0305e5 100644
--- a/arch/arm/mach-footbridge/netwinder-pci.c
+++ b/arch/arm/mach-footbridge/netwinder-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/netwinder-pci.c
  *
diff --git a/arch/arm/mach-footbridge/personal-pci.c b/arch/arm/mach-footbridge/personal-pci.c
index 5c9ee54613b2..4391e433a4b2 100644
--- a/arch/arm/mach-footbridge/personal-pci.c
+++ b/arch/arm/mach-footbridge/personal-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/personal-pci.c
  *
diff --git a/arch/arm/mach-footbridge/personal.c b/arch/arm/mach-footbridge/personal.c
index 7bdeabdcd4d8..ca715754fc00 100644
--- a/arch/arm/mach-footbridge/personal.c
+++ b/arch/arm/mach-footbridge/personal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-footbridge/personal.c
  *
diff --git a/arch/arm/mach-gemini/board-dt.c b/arch/arm/mach-gemini/board-dt.c
index c0c0ebdd551e..de0afcc8d94a 100644
--- a/arch/arm/mach-gemini/board-dt.c
+++ b/arch/arm/mach-gemini/board-dt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Gemini Device Tree boot support
  */
diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h
index 7ec5edcd1336..3991a6594ae5 100644
--- a/arch/arm/mach-highbank/core.h
+++ b/arch/arm/mach-highbank/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HIGHBANK_CORE_H
 #define __HIGHBANK_CORE_H
 
diff --git a/arch/arm/mach-hisi/core.h b/arch/arm/mach-hisi/core.h
index c58b68ab0cb6..61245274fdaf 100644
--- a/arch/arm/mach-hisi/core.h
+++ b/arch/arm/mach-hisi/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HISILICON_CORE_H
 #define __HISILICON_CORE_H
 
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index cab128913e72..8ff71058207d 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y := cpu.o system.o irq-common.o
 
 obj-$(CONFIG_SOC_IMX21) += mm-imx21.o
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index 94906ed49392..d4e55f2a897e 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/io.h>
diff --git a/arch/arm/mach-imx/devices/Makefile b/arch/arm/mach-imx/devices/Makefile
index aa6cee870795..e44758aaa11c 100644
--- a/arch/arm/mach-imx/devices/Makefile
+++ b/arch/arm/mach-imx/devices/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y := devices.o
 
 obj-$(CONFIG_IMX_HAVE_PLATFORM_FEC) += platform-fec.o
diff --git a/arch/arm/mach-imx/ehci.h b/arch/arm/mach-imx/ehci.h
index 0e060023db8b..b7ad6175f5bf 100644
--- a/arch/arm/mach-imx/ehci.h
+++ b/arch/arm/mach-imx/ehci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_IMX_EHCI_H
 #define __MACH_IMX_EHCI_H
 
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 45801b27ee5c..b5f89fdbbb4b 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -286,88 +286,6 @@ static void __init imx6q_init_machine(void)
 	imx6q_axi_init();
 }
 
-#define OCOTP_CFG3			0x440
-#define OCOTP_CFG3_SPEED_SHIFT		16
-#define OCOTP_CFG3_SPEED_1P2GHZ		0x3
-#define OCOTP_CFG3_SPEED_996MHZ		0x2
-#define OCOTP_CFG3_SPEED_852MHZ		0x1
-
-static void __init imx6q_opp_check_speed_grading(struct device *cpu_dev)
-{
-	struct device_node *np;
-	void __iomem *base;
-	u32 val;
-
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp");
-	if (!np) {
-		pr_warn("failed to find ocotp node\n");
-		return;
-	}
-
-	base = of_iomap(np, 0);
-	if (!base) {
-		pr_warn("failed to map ocotp\n");
-		goto put_node;
-	}
-
-	/*
-	 * SPEED_GRADING[1:0] defines the max speed of ARM:
-	 * 2b'11: 1200000000Hz;
-	 * 2b'10: 996000000Hz;
-	 * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
-	 * 2b'00: 792000000Hz;
-	 * We need to set the max speed of ARM according to fuse map.
-	 */
-	val = readl_relaxed(base + OCOTP_CFG3);
-	val >>= OCOTP_CFG3_SPEED_SHIFT;
-	val &= 0x3;
-
-	if ((val != OCOTP_CFG3_SPEED_1P2GHZ) && cpu_is_imx6q())
-		if (dev_pm_opp_disable(cpu_dev, 1200000000))
-			pr_warn("failed to disable 1.2 GHz OPP\n");
-	if (val < OCOTP_CFG3_SPEED_996MHZ)
-		if (dev_pm_opp_disable(cpu_dev, 996000000))
-			pr_warn("failed to disable 996 MHz OPP\n");
-	if (cpu_is_imx6q()) {
-		if (val != OCOTP_CFG3_SPEED_852MHZ)
-			if (dev_pm_opp_disable(cpu_dev, 852000000))
-				pr_warn("failed to disable 852 MHz OPP\n");
-	}
-	iounmap(base);
-put_node:
-	of_node_put(np);
-}
-
-static void __init imx6q_opp_init(void)
-{
-	struct device_node *np;
-	struct device *cpu_dev = get_cpu_device(0);
-
-	if (!cpu_dev) {
-		pr_warn("failed to get cpu0 device\n");
-		return;
-	}
-	np = of_node_get(cpu_dev->of_node);
-	if (!np) {
-		pr_warn("failed to find cpu0 node\n");
-		return;
-	}
-
-	if (dev_pm_opp_of_add_table(cpu_dev)) {
-		pr_warn("failed to init OPP table\n");
-		goto put_node;
-	}
-
-	imx6q_opp_check_speed_grading(cpu_dev);
-
-put_node:
-	of_node_put(np);
-}
-
-static struct platform_device imx6q_cpufreq_pdev = {
-	.name = "imx6q-cpufreq",
-};
-
 static void __init imx6q_init_late(void)
 {
 	/*
@@ -377,10 +295,8 @@ static void __init imx6q_init_late(void)
 	if (imx_get_soc_revision() > IMX_CHIP_REVISION_1_1)
 		imx6q_cpuidle_init();
 
-	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) {
-		imx6q_opp_init();
-		platform_device_register(&imx6q_cpufreq_pdev);
-	}
+	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ))
+		platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0);
 }
 
 static void __init imx6q_map_io(void)
diff --git a/arch/arm/mach-imx/mx31.h b/arch/arm/mach-imx/mx31.h
index ee9b1f9215df..d9574671ca5c 100644
--- a/arch/arm/mach-imx/mx31.h
+++ b/arch/arm/mach-imx/mx31.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MX31_H__
 #define __MACH_MX31_H__
 
diff --git a/arch/arm/mach-imx/mx35.h b/arch/arm/mach-imx/mx35.h
index 2af5d3a699c7..760de6a0af7e 100644
--- a/arch/arm/mach-imx/mx35.h
+++ b/arch/arm/mach-imx/mx35.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MX35_H__
 #define __MACH_MX35_H__
 
diff --git a/arch/arm/mach-imx/pcm037.h b/arch/arm/mach-imx/pcm037.h
index 7d167690e17d..470d3c887e14 100644
--- a/arch/arm/mach-imx/pcm037.h
+++ b/arch/arm/mach-imx/pcm037.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PCM037_H__
 #define __PCM037_H__
 
diff --git a/arch/arm/mach-imx/ulpi.h b/arch/arm/mach-imx/ulpi.h
index 23f5c0349e80..b367902c9c32 100644
--- a/arch/arm/mach-imx/ulpi.h
+++ b/arch/arm/mach-imx/ulpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_ULPI_H
 #define __MACH_ULPI_H
 
diff --git a/arch/arm/mach-integrator/Makefile b/arch/arm/mach-integrator/Makefile
index 1ebe45356b09..a5a4470db482 100644
--- a/arch/arm/mach-integrator/Makefile
+++ b/arch/arm/mach-integrator/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-integrator/cm.h b/arch/arm/mach-integrator/cm.h
index 5b8ba8247f45..f09ea18a50f8 100644
--- a/arch/arm/mach-integrator/cm.h
+++ b/arch/arm/mach-integrator/cm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * access the core module control register.
  */
diff --git a/arch/arm/mach-integrator/common.h b/arch/arm/mach-integrator/common.h
index 96c9dc56cabf..f053aeebeb7a 100644
--- a/arch/arm/mach-integrator/common.h
+++ b/arch/arm/mach-integrator/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/reboot.h>
 #include <linux/amba/serial.h>
 extern struct amba_pl010_data ap_uart_data;
diff --git a/arch/arm/mach-integrator/impd1.h b/arch/arm/mach-integrator/impd1.h
index 76de4dc9bee4..36124d34c8f7 100644
--- a/arch/arm/mach-integrator/impd1.h
+++ b/arch/arm/mach-integrator/impd1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define IMPD1_LEDS	0x0c
 #define IMPD1_INT	0x10
 #define IMPD1_SW	0x14
diff --git a/arch/arm/mach-integrator/lm.h b/arch/arm/mach-integrator/lm.h
index 28186b6f2c09..172966a699bd 100644
--- a/arch/arm/mach-integrator/lm.h
+++ b/arch/arm/mach-integrator/lm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 struct lm_device {
 	struct device		dev;
diff --git a/arch/arm/mach-integrator/pci_v3.h b/arch/arm/mach-integrator/pci_v3.h
index 06a9e2e7d007..cafc7174baab 100644
--- a/arch/arm/mach-integrator/pci_v3.h
+++ b/arch/arm/mach-integrator/pci_v3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Simple oneliner include to the PCIv3 early init */
 #ifdef CONFIG_PCI
 extern int pci_v3_early_init(void);
diff --git a/arch/arm/mach-iop13xx/Kconfig b/arch/arm/mach-iop13xx/Kconfig
index 40c2d689f2eb..c4f04070b4c1 100644
--- a/arch/arm/mach-iop13xx/Kconfig
+++ b/arch/arm/mach-iop13xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ARCH_IOP13XX
 
 menu "IOP13XX Implementation Options"
diff --git a/arch/arm/mach-iop13xx/Makefile b/arch/arm/mach-iop13xx/Makefile
index a3d9260e335f..5757c8f6e371 100644
--- a/arch/arm/mach-iop13xx/Makefile
+++ b/arch/arm/mach-iop13xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ARCH_IOP13XX) += setup.o
 obj-$(CONFIG_ARCH_IOP13XX) += irq.o
 obj-$(CONFIG_ARCH_IOP13XX) += pci.o
diff --git a/arch/arm/mach-iop13xx/include/mach/hardware.h b/arch/arm/mach-iop13xx/include/mach/hardware.h
index 786fa266fab3..8c943fa6bbd7 100644
--- a/arch/arm/mach-iop13xx/include/mach/hardware.h
+++ b/arch/arm/mach-iop13xx/include/mach/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_HARDWARE_H
 #define __ASM_ARCH_HARDWARE_H
 #include <asm/types.h>
diff --git a/arch/arm/mach-iop13xx/include/mach/iop13xx.h b/arch/arm/mach-iop13xx/include/mach/iop13xx.h
index 9311ee2126d6..04bb6aca12c5 100644
--- a/arch/arm/mach-iop13xx/include/mach/iop13xx.h
+++ b/arch/arm/mach-iop13xx/include/mach/iop13xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP13XX_HW_H_
 #define _IOP13XX_HW_H_
 
diff --git a/arch/arm/mach-iop13xx/include/mach/iq81340.h b/arch/arm/mach-iop13xx/include/mach/iq81340.h
index ba2cf931e9ce..d7ad27a95558 100644
--- a/arch/arm/mach-iop13xx/include/mach/iq81340.h
+++ b/arch/arm/mach-iop13xx/include/mach/iq81340.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IQ81340_H_
 #define _IQ81340_H_
 
diff --git a/arch/arm/mach-iop13xx/include/mach/irqs.h b/arch/arm/mach-iop13xx/include/mach/irqs.h
index e8d24d32121a..cd6b6375c050 100644
--- a/arch/arm/mach-iop13xx/include/mach/irqs.h
+++ b/arch/arm/mach-iop13xx/include/mach/irqs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP13XX_IRQS_H_
 #define _IOP13XX_IRQS_H_
 
diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h
index 59307e787588..32da0e09c6a3 100644
--- a/arch/arm/mach-iop13xx/include/mach/memory.h
+++ b/arch/arm/mach-iop13xx/include/mach/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_MEMORY_H
 #define __ASM_ARCH_MEMORY_H
 
diff --git a/arch/arm/mach-iop13xx/include/mach/time.h b/arch/arm/mach-iop13xx/include/mach/time.h
index c871e6874594..2c2d7532d5c3 100644
--- a/arch/arm/mach-iop13xx/include/mach/time.h
+++ b/arch/arm/mach-iop13xx/include/mach/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP13XX_TIME_H_
 #define _IOP13XX_TIME_H_
 
diff --git a/arch/arm/mach-iop13xx/include/mach/uncompress.h b/arch/arm/mach-iop13xx/include/mach/uncompress.h
index d3791ece2772..c62903041d11 100644
--- a/arch/arm/mach-iop13xx/include/mach/uncompress.h
+++ b/arch/arm/mach-iop13xx/include/mach/uncompress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/types.h>
 #include <linux/serial_reg.h>
 #include <mach/hardware.h>
diff --git a/arch/arm/mach-iop13xx/msi.h b/arch/arm/mach-iop13xx/msi.h
index b80c5ae17e99..766dcfaaa353 100644
--- a/arch/arm/mach-iop13xx/msi.h
+++ b/arch/arm/mach-iop13xx/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP13XX_MSI_H_
 #define _IOP13XX_MSI_H_
 #ifdef CONFIG_PCI_MSI
diff --git a/arch/arm/mach-iop13xx/pci.h b/arch/arm/mach-iop13xx/pci.h
index 8dc343cb887a..736168d8c7ac 100644
--- a/arch/arm/mach-iop13xx/pci.h
+++ b/arch/arm/mach-iop13xx/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP13XX_PCI_H_
 #define _IOP13XX_PCI_H_
 #include <linux/io.h>
diff --git a/arch/arm/mach-iop32x/Kconfig b/arch/arm/mach-iop32x/Kconfig
index 5e8c6f7dfabb..f1f342cb0509 100644
--- a/arch/arm/mach-iop32x/Kconfig
+++ b/arch/arm/mach-iop32x/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ARCH_IOP32X
 
 menu "IOP32x Implementation Options"
diff --git a/arch/arm/mach-iop32x/Makefile b/arch/arm/mach-iop32x/Makefile
index 2d4010abb82f..71d62447d4d5 100644
--- a/arch/arm/mach-iop32x/Makefile
+++ b/arch/arm/mach-iop32x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-iop32x/gpio-iop32x.h b/arch/arm/mach-iop32x/gpio-iop32x.h
index 3c7309c02029..20af87e4c5e8 100644
--- a/arch/arm/mach-iop32x/gpio-iop32x.h
+++ b/arch/arm/mach-iop32x/gpio-iop32x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static struct resource iop32x_gpio_res[] = {
 	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x07c4), 0x10),
 };
diff --git a/arch/arm/mach-iop32x/include/mach/adma.h b/arch/arm/mach-iop32x/include/mach/adma.h
index 5ed92037dd10..2b20063123ad 100644
--- a/arch/arm/mach-iop32x/include/mach/adma.h
+++ b/arch/arm/mach-iop32x/include/mach/adma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IOP32X_ADMA_H
 #define IOP32X_ADMA_H
 #include <asm/hardware/iop3xx-adma.h>
diff --git a/arch/arm/mach-iop32x/include/mach/glantank.h b/arch/arm/mach-iop32x/include/mach/glantank.h
index 958eb91c0913..b9df2e4614cf 100644
--- a/arch/arm/mach-iop32x/include/mach/glantank.h
+++ b/arch/arm/mach-iop32x/include/mach/glantank.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop32x/include/mach/glantank.h
  *
diff --git a/arch/arm/mach-iop32x/include/mach/hardware.h b/arch/arm/mach-iop32x/include/mach/hardware.h
index 48cb1b20ba91..6e5303e60226 100644
--- a/arch/arm/mach-iop32x/include/mach/hardware.h
+++ b/arch/arm/mach-iop32x/include/mach/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop32x/include/mach/hardware.h
  */
diff --git a/arch/arm/mach-iop32x/include/mach/iq31244.h b/arch/arm/mach-iop32x/include/mach/iq31244.h
index 6b6b369e781c..e62da5da6ed4 100644
--- a/arch/arm/mach-iop32x/include/mach/iq31244.h
+++ b/arch/arm/mach-iop32x/include/mach/iq31244.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop32x/include/mach/iq31244.h
  *
diff --git a/arch/arm/mach-iop32x/include/mach/iq80321.h b/arch/arm/mach-iop32x/include/mach/iq80321.h
index 498819b737e7..faf62c26f6f8 100644
--- a/arch/arm/mach-iop32x/include/mach/iq80321.h
+++ b/arch/arm/mach-iop32x/include/mach/iq80321.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop32x/include/mach/iq80321.h
  *
diff --git a/arch/arm/mach-iop32x/include/mach/n2100.h b/arch/arm/mach-iop32x/include/mach/n2100.h
index 40b8a532b064..70bb660b643a 100644
--- a/arch/arm/mach-iop32x/include/mach/n2100.h
+++ b/arch/arm/mach-iop32x/include/mach/n2100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop32x/include/mach/n2100.h
  *
diff --git a/arch/arm/mach-iop32x/include/mach/time.h b/arch/arm/mach-iop32x/include/mach/time.h
index 0f28c9949623..d08950ccebc4 100644
--- a/arch/arm/mach-iop32x/include/mach/time.h
+++ b/arch/arm/mach-iop32x/include/mach/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP32X_TIME_H_
 #define _IOP32X_TIME_H_
 #define IRQ_IOP_TIMER0 IRQ_IOP32X_TIMER0
diff --git a/arch/arm/mach-iop32x/include/mach/uncompress.h b/arch/arm/mach-iop32x/include/mach/uncompress.h
index b3d45fd365e7..ed4ac3e28fa1 100644
--- a/arch/arm/mach-iop32x/include/mach/uncompress.h
+++ b/arch/arm/mach-iop32x/include/mach/uncompress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop32x/include/mach/uncompress.h
  */
diff --git a/arch/arm/mach-iop33x/include/mach/adma.h b/arch/arm/mach-iop33x/include/mach/adma.h
index 4b92f795f90e..8aa7159ab6d8 100644
--- a/arch/arm/mach-iop33x/include/mach/adma.h
+++ b/arch/arm/mach-iop33x/include/mach/adma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IOP33X_ADMA_H
 #define IOP33X_ADMA_H
 #include <asm/hardware/iop3xx-adma.h>
diff --git a/arch/arm/mach-iop33x/include/mach/hardware.h b/arch/arm/mach-iop33x/include/mach/hardware.h
index 839285315e4e..020bafbc36a5 100644
--- a/arch/arm/mach-iop33x/include/mach/hardware.h
+++ b/arch/arm/mach-iop33x/include/mach/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop33x/include/mach/hardware.h
  */
diff --git a/arch/arm/mach-iop33x/include/mach/iq80331.h b/arch/arm/mach-iop33x/include/mach/iq80331.h
index fe406b0127f7..c7e68d863e44 100644
--- a/arch/arm/mach-iop33x/include/mach/iq80331.h
+++ b/arch/arm/mach-iop33x/include/mach/iq80331.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop33x/include/mach/iq80331.h
  *
diff --git a/arch/arm/mach-iop33x/include/mach/iq80332.h b/arch/arm/mach-iop33x/include/mach/iq80332.h
index 8325d71f2ed5..749b44bf7f62 100644
--- a/arch/arm/mach-iop33x/include/mach/iq80332.h
+++ b/arch/arm/mach-iop33x/include/mach/iq80332.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop33x/include/mach/iq80332.h
  *
diff --git a/arch/arm/mach-iop33x/include/mach/time.h b/arch/arm/mach-iop33x/include/mach/time.h
index 4ac4d7664f85..801f8fd644ad 100644
--- a/arch/arm/mach-iop33x/include/mach/time.h
+++ b/arch/arm/mach-iop33x/include/mach/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IOP33X_TIME_H_
 #define _IOP33X_TIME_H_
 #define IRQ_IOP_TIMER0 IRQ_IOP33X_TIMER0
diff --git a/arch/arm/mach-iop33x/include/mach/uncompress.h b/arch/arm/mach-iop33x/include/mach/uncompress.h
index ed282e14176d..62b71cde1f79 100644
--- a/arch/arm/mach-iop33x/include/mach/uncompress.h
+++ b/arch/arm/mach-iop33x/include/mach/uncompress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-iop33x/include/mach/uncompress.h
  */
diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index eded94c96dd4..f09994500a34 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c
index 6beec150c060..186df64ceae7 100644
--- a/arch/arm/mach-ixp4xx/avila-setup.c
+++ b/arch/arm/mach-ixp4xx/avila-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/avila-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/coyote-setup.c b/arch/arm/mach-ixp4xx/coyote-setup.c
index 820cae8608fc..7e40fe70933b 100644
--- a/arch/arm/mach-ixp4xx/coyote-setup.c
+++ b/arch/arm/mach-ixp4xx/coyote-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/coyote-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index b3bd0e137f6d..19839bba7f17 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DSM-G600 board-setup
  *
@@ -174,7 +175,7 @@ static int power_button_countdown;
 #define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
 
 static void dsmg600_power_handler(unsigned long data);
-static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0);
+static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler);
 
 static void dsmg600_power_handler(unsigned long data)
 {
diff --git a/arch/arm/mach-ixp4xx/fsg-setup.c b/arch/arm/mach-ixp4xx/fsg-setup.c
index 5c4b0c4a1b37..6e32cbc4f590 100644
--- a/arch/arm/mach-ixp4xx/fsg-setup.c
+++ b/arch/arm/mach-ixp4xx/fsg-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/fsg-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/gateway7001-setup.c b/arch/arm/mach-ixp4xx/gateway7001-setup.c
index 3d24b3fcee87..1be6faf6da9a 100644
--- a/arch/arm/mach-ixp4xx/gateway7001-setup.c
+++ b/arch/arm/mach-ixp4xx/gateway7001-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/gateway7001-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/goramo_mlr.c b/arch/arm/mach-ixp4xx/goramo_mlr.c
index 80bd9d6d04de..145ec5c1b0eb 100644
--- a/arch/arm/mach-ixp4xx/goramo_mlr.c
+++ b/arch/arm/mach-ixp4xx/goramo_mlr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Goramo MultiLink router platform code
  * Copyright (C) 2006-2009 Krzysztof Halasa <khc@pm.waw.pl>
diff --git a/arch/arm/mach-ixp4xx/include/mach/npe.h b/arch/arm/mach-ixp4xx/include/mach/npe.h
index e320db2457ae..3a980845e557 100644
--- a/arch/arm/mach-ixp4xx/include/mach/npe.h
+++ b/arch/arm/mach-ixp4xx/include/mach/npe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IXP4XX_NPE_H
 #define __IXP4XX_NPE_H
 
diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
index 34b3d3f3f131..342acbe20f7c 100644
--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-ixp4xx/include/mach/platform.h
  *
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 93b89291c06b..8f5e01527b1b 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/ixdp425-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index 4e0f762bc651..b6d731241317 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/nas100d-setup.c
  *
@@ -197,7 +198,7 @@ static int power_button_countdown;
 #define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
 
 static void nas100d_power_handler(unsigned long data);
-static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler, 0, 0);
+static DEFINE_TIMER(nas100d_power_timer, nas100d_power_handler);
 
 static void nas100d_power_handler(unsigned long data)
 {
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 88c025f52d8d..bd8dc65b4ffc 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/nslu2-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/vulcan-setup.c b/arch/arm/mach-ixp4xx/vulcan-setup.c
index d599e354ca57..731fb2019ecb 100644
--- a/arch/arm/mach-ixp4xx/vulcan-setup.c
+++ b/arch/arm/mach-ixp4xx/vulcan-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/vulcan-setup.c
  *
diff --git a/arch/arm/mach-ixp4xx/wg302v2-setup.c b/arch/arm/mach-ixp4xx/wg302v2-setup.c
index 8f9ea2f3a9a5..90b3c604e8b6 100644
--- a/arch/arm/mach-ixp4xx/wg302v2-setup.c
+++ b/arch/arm/mach-ixp4xx/wg302v2-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/arm/mach-ixp4xx/wg302-setup.c
  *
diff --git a/arch/arm/mach-keystone/Makefile b/arch/arm/mach-keystone/Makefile
index 25d92396fbfa..f8b0dccac8dc 100644
--- a/arch/arm/mach-keystone/Makefile
+++ b/arch/arm/mach-keystone/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y					:= keystone.o smc.o
 
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
diff --git a/arch/arm/mach-ks8695/Makefile b/arch/arm/mach-ks8695/Makefile
index 8ecb7973ae54..439b22255a32 100644
--- a/arch/arm/mach-ks8695/Makefile
+++ b/arch/arm/mach-ks8695/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # arch/arm/mach-ks8695/Makefile
 #
 # Makefile for KS8695 architecture support
diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index 7677ad5414e9..8f267c7bc6e8 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Marvell's PXA168 processors line
 #
diff --git a/arch/arm/mach-mmp/clock-mmp2.c b/arch/arm/mach-mmp/clock-mmp2.c
index 835c3e7cc67e..7536398bf1c1 100644
--- a/arch/arm/mach-mmp/clock-mmp2.c
+++ b/arch/arm/mach-mmp/clock-mmp2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/arm/mach-mmp/clock-pxa168.c b/arch/arm/mach-mmp/clock-pxa168.c
index f726a3692431..2d4a5d96a1ff 100644
--- a/arch/arm/mach-mmp/clock-pxa168.c
+++ b/arch/arm/mach-mmp/clock-pxa168.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/arm/mach-mmp/clock-pxa910.c b/arch/arm/mach-mmp/clock-pxa910.c
index bca60a224e07..3cd83ff91bb0 100644
--- a/arch/arm/mach-mmp/clock-pxa910.c
+++ b/arch/arm/mach-mmp/clock-pxa910.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/arm/mach-mmp/common.h b/arch/arm/mach-mmp/common.h
index 7453a90c34bd..7e284d9c429f 100644
--- a/arch/arm/mach-mmp/common.h
+++ b/arch/arm/mach-mmp/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/reboot.h>
 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
 
diff --git a/arch/arm/mach-mmp/cputype.h b/arch/arm/mach-mmp/cputype.h
index 8a3b56dfd35d..446edaeb78a7 100644
--- a/arch/arm/mach-mmp/cputype.h
+++ b/arch/arm/mach-mmp/cputype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_CPUTYPE_H
 #define __ASM_MACH_CPUTYPE_H
 
diff --git a/arch/arm/mach-mmp/devices.h b/arch/arm/mach-mmp/devices.h
index 21217ef11b64..4df596c5c201 100644
--- a/arch/arm/mach-mmp/devices.h
+++ b/arch/arm/mach-mmp/devices.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_DEVICE_H
 #define __MACH_DEVICE_H
 
diff --git a/arch/arm/mach-mmp/irqs.h b/arch/arm/mach-mmp/irqs.h
index fb492a50a817..5acc4d532a43 100644
--- a/arch/arm/mach-mmp/irqs.h
+++ b/arch/arm/mach-mmp/irqs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_IRQS_H
 #define __ASM_MACH_IRQS_H
 
diff --git a/arch/arm/mach-mmp/mfp-mmp2.h b/arch/arm/mach-mmp/mfp-mmp2.h
index b2744349725d..1620222981e3 100644
--- a/arch/arm/mach-mmp/mfp-mmp2.h
+++ b/arch/arm/mach-mmp/mfp-mmp2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_MFP_MMP2_H
 #define __ASM_MACH_MFP_MMP2_H
 
diff --git a/arch/arm/mach-mmp/mfp-pxa168.h b/arch/arm/mach-mmp/mfp-pxa168.h
index 9050d032377e..90d16d3419a4 100644
--- a/arch/arm/mach-mmp/mfp-pxa168.h
+++ b/arch/arm/mach-mmp/mfp-pxa168.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_MFP_PXA168_H
 #define __ASM_MACH_MFP_PXA168_H
 
diff --git a/arch/arm/mach-mmp/mfp-pxa910.h b/arch/arm/mach-mmp/mfp-pxa910.h
index f06db5cd3ad3..6f900cade631 100644
--- a/arch/arm/mach-mmp/mfp-pxa910.h
+++ b/arch/arm/mach-mmp/mfp-pxa910.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_MFP_PXA910_H
 #define __ASM_MACH_MFP_PXA910_H
 
diff --git a/arch/arm/mach-mmp/mfp.h b/arch/arm/mach-mmp/mfp.h
index 62e510e80a58..75a4acb33b1b 100644
--- a/arch/arm/mach-mmp/mfp.h
+++ b/arch/arm/mach-mmp/mfp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_MFP_H
 #define __ASM_MACH_MFP_H
 
diff --git a/arch/arm/mach-mmp/mmp2.h b/arch/arm/mach-mmp/mmp2.h
index 9b5e75ee9e4d..a4b82f719de1 100644
--- a/arch/arm/mach-mmp/mmp2.h
+++ b/arch/arm/mach-mmp/mmp2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_MMP2_H
 #define __ASM_MACH_MMP2_H
 
diff --git a/arch/arm/mach-mmp/pxa168.h b/arch/arm/mach-mmp/pxa168.h
index 75841e9ccd73..b39bff37ff11 100644
--- a/arch/arm/mach-mmp/pxa168.h
+++ b/arch/arm/mach-mmp/pxa168.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_PXA168_H
 #define __ASM_MACH_PXA168_H
 
diff --git a/arch/arm/mach-mmp/pxa910.h b/arch/arm/mach-mmp/pxa910.h
index a211e81e5a08..cb3923dcf580 100644
--- a/arch/arm/mach-mmp/pxa910.h
+++ b/arch/arm/mach-mmp/pxa910.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_PXA910_H
 #define __ASM_MACH_PXA910_H
 
diff --git a/arch/arm/mach-mv78xx0/Makefile b/arch/arm/mach-mv78xx0/Makefile
index ddb3aa98a3c7..a839e960b8c6 100644
--- a/arch/arm/mach-mv78xx0/Makefile
+++ b/arch/arm/mach-mv78xx0/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
 
 obj-y				+= common.o mpp.o irq.o pcie.o
diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile
index 6c6497e80a7b..cb106899dd7c 100644
--- a/arch/arm/mach-mvebu/Makefile
+++ b/arch/arm/mach-mvebu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
 
 AFLAGS_coherency_ll.o		:= -Wa,-march=armv7-a
diff --git a/arch/arm/mach-omap1/Makefile b/arch/arm/mach-omap1/Makefile
index 0e8ea95ea822..e8ccf51c6f29 100644
--- a/arch/arm/mach-omap1/Makefile
+++ b/arch/arm/mach-omap1/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-omap1/camera.h b/arch/arm/mach-omap1/camera.h
index caa6c0d6f0ac..8018f410d024 100644
--- a/arch/arm/mach-omap1/camera.h
+++ b/arch/arm/mach-omap1/camera.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_CAMERA_H_
 #define __ASM_ARCH_CAMERA_H_
 
diff --git a/arch/arm/mach-omap1/include/mach/memory.h b/arch/arm/mach-omap1/include/mach/memory.h
index d43ff0f1cbf8..1142560e0078 100644
--- a/arch/arm/mach-omap1/include/mach/memory.h
+++ b/arch/arm/mach-omap1/include/mach/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-omap1/include/mach/memory.h
  */
diff --git a/arch/arm/mach-omap1/include/mach/usb.h b/arch/arm/mach-omap1/include/mach/usb.h
index eb76628ff843..77867778d4ec 100644
--- a/arch/arm/mach-omap1/include/mach/usb.h
+++ b/arch/arm/mach-omap1/include/mach/usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * FIXME correct answer depends on hmc_mode,
  * as does (on omap1) any nonzero value for config->otg port number
diff --git a/arch/arm/mach-omap1/mmc.h b/arch/arm/mach-omap1/mmc.h
index d7b46880e4ca..043bd02f3f2a 100644
--- a/arch/arm/mach-omap1/mmc.h
+++ b/arch/arm/mach-omap1/mmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/mmc/host.h>
 #include <linux/platform_data/mmc-omap.h>
 
diff --git a/arch/arm/mach-omap1/reset.c b/arch/arm/mach-omap1/reset.c
index 72bf4bf4a702..af2c120b0c4e 100644
--- a/arch/arm/mach-omap1/reset.c
+++ b/arch/arm/mach-omap1/reset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OMAP1 reset support
  */
diff --git a/arch/arm/mach-omap1/sram.h b/arch/arm/mach-omap1/sram.h
index d5a6c8362301..73efabd119e8 100644
--- a/arch/arm/mach-omap1/sram.h
+++ b/arch/arm/mach-omap1/sram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <plat/sram.h>
 
 extern void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl);
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index b3b3b3a19183..38f1748a4500 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-omap2/clock2xxx.h b/arch/arm/mach-omap2/clock2xxx.h
index 125c37614848..a8408f9d0f33 100644
--- a/arch/arm/mach-omap2/clock2xxx.h
+++ b/arch/arm/mach-omap2/clock2xxx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * OMAP2 clock function prototypes and macros
  *
diff --git a/arch/arm/mach-omap2/clock3xxx.h b/arch/arm/mach-omap2/clock3xxx.h
index 78d9f562e3ce..10a9f577dc1a 100644
--- a/arch/arm/mach-omap2/clock3xxx.h
+++ b/arch/arm/mach-omap2/clock3xxx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * OMAP3-common clock function prototypes and macros
  *
diff --git a/arch/arm/mach-omap2/clockdomains2420_data.c b/arch/arm/mach-omap2/clockdomains2420_data.c
index 7e76becf3a4a..ac4ffb5d2ffc 100644
--- a/arch/arm/mach-omap2/clockdomains2420_data.c
+++ b/arch/arm/mach-omap2/clockdomains2420_data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OMAP2420 clockdomains
  *
diff --git a/arch/arm/mach-omap2/clockdomains2430_data.c b/arch/arm/mach-omap2/clockdomains2430_data.c
index b923007e45d0..0e97e178abaa 100644
--- a/arch/arm/mach-omap2/clockdomains2430_data.c
+++ b/arch/arm/mach-omap2/clockdomains2430_data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OMAP2xxx clockdomains
  *
diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
index 4972219653ce..220c22f5e0f5 100644
--- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
+++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OMAP2/3 clockdomain common data
  *
diff --git a/arch/arm/mach-omap2/clockdomains3xxx_data.c b/arch/arm/mach-omap2/clockdomains3xxx_data.c
index f03dc97921ad..94bbd3831ac3 100644
--- a/arch/arm/mach-omap2/clockdomains3xxx_data.c
+++ b/arch/arm/mach-omap2/clockdomains3xxx_data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OMAP3xxx clockdomains
  *
diff --git a/arch/arm/mach-omap2/common-board-devices.h b/arch/arm/mach-omap2/common-board-devices.h
index 335c7822fea1..b23962c38fb2 100644
--- a/arch/arm/mach-omap2/common-board-devices.h
+++ b/arch/arm/mach-omap2/common-board-devices.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OMAP_COMMON_BOARD_DEVICES__
 #define __OMAP_COMMON_BOARD_DEVICES__
 
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index 5b614388d72f..6d28aa20a7d3 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -58,10 +58,10 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c)
 	struct platform_device *pdev;
 	int res;
 
-	if (omap_hsmmc_done != 1)
+	if (omap_hsmmc_done)
 		return;
 
-	omap_hsmmc_done++;
+	omap_hsmmc_done = 1;
 
 	for (; c->mmc; c++) {
 		pdev = c->pdev;
diff --git a/arch/arm/mach-omap2/mmc.h b/arch/arm/mach-omap2/mmc.h
index 30d39b97e7dd..9145a6f720fc 100644
--- a/arch/arm/mach-omap2/mmc.h
+++ b/arch/arm/mach-omap2/mmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #define OMAP24XX_NR_MMC		2
 #define OMAP2420_MMC_SIZE	OMAP1_MMC_SIZE
diff --git a/arch/arm/mach-omap2/omap-pm-noop.c b/arch/arm/mach-omap2/omap-pm-noop.c
index a1ee8066958e..4ead077ea4e7 100644
--- a/arch/arm/mach-omap2/omap-pm-noop.c
+++ b/arch/arm/mach-omap2/omap-pm-noop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * omap-pm-noop.c - OMAP power management interface - dummy version
  *
diff --git a/arch/arm/mach-omap2/omap-pm.h b/arch/arm/mach-omap2/omap-pm.h
index 109bef5538eb..5ba5df47f91b 100644
--- a/arch/arm/mach-omap2/omap-pm.h
+++ b/arch/arm/mach-omap2/omap-pm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * omap-pm.h - OMAP power management interface
  *
diff --git a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
index f040244c57e7..2f4f7002f38d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_7xx_data.c
@@ -839,6 +839,7 @@ static struct omap_hwmod dra7xx_gpio1_hwmod = {
 	.name		= "gpio1",
 	.class		= &dra7xx_gpio_hwmod_class,
 	.clkdm_name	= "wkupaon_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
 	.main_clk	= "wkupaon_iclk_mux",
 	.prcm = {
 		.omap4 = {
diff --git a/arch/arm/mach-omap2/opp2420_data.c b/arch/arm/mach-omap2/opp2420_data.c
index a9e8cf21705d..18a448f938ea 100644
--- a/arch/arm/mach-omap2/opp2420_data.c
+++ b/arch/arm/mach-omap2/opp2420_data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * opp2420_data.c - old-style "OPP" table for OMAP2420
  *
diff --git a/arch/arm/mach-omap2/opp2430_data.c b/arch/arm/mach-omap2/opp2430_data.c
index b2233b72b24d..ded8b566a23a 100644
--- a/arch/arm/mach-omap2/opp2430_data.c
+++ b/arch/arm/mach-omap2/opp2430_data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * opp2430_data.c - old-style "OPP" table for OMAP2430
  *
diff --git a/arch/arm/mach-omap2/opp2xxx.h b/arch/arm/mach-omap2/opp2xxx.h
index 8fae534eb157..a451182cdc02 100644
--- a/arch/arm/mach-omap2/opp2xxx.h
+++ b/arch/arm/mach-omap2/opp2xxx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * opp2xxx.h - macros for old-style OMAP2xxx "OPP" definitions
  *
diff --git a/arch/arm/mach-omap2/usb.h b/arch/arm/mach-omap2/usb.h
index 3395365ef1db..740a499befce 100644
--- a/arch/arm/mach-omap2/usb.h
+++ b/arch/arm/mach-omap2/usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/platform_data/usb-omap.h>
 
 /* AM35x */
diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c
index a3c30655aa30..a709655b978c 100644
--- a/arch/arm/mach-omap2/vp.c
+++ b/arch/arm/mach-omap2/vp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 
diff --git a/arch/arm/mach-orion5x/Makefile b/arch/arm/mach-orion5x/Makefile
index ae91872eeee4..1a585a62d5e6 100644
--- a/arch/arm/mach-orion5x/Makefile
+++ b/arch/arm/mach-orion5x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/arch/arm/plat-orion/include
 
 obj-y				+= common.o pci.o irq.o mpp.o
diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h
index 4c0c7de665c3..eb96009e21c4 100644
--- a/arch/arm/mach-orion5x/common.h
+++ b/arch/arm/mach-orion5x/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_ORION5X_COMMON_H
 #define __ARCH_ORION5X_COMMON_H
 
diff --git a/arch/arm/mach-orion5x/mpp.h b/arch/arm/mach-orion5x/mpp.h
index db70e79a1198..be1c78663291 100644
--- a/arch/arm/mach-orion5x/mpp.h
+++ b/arch/arm/mach-orion5x/mpp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_ORION5X_MPP_H
 #define __ARCH_ORION5X_MPP_H
 
diff --git a/arch/arm/mach-orion5x/ts78xx-fpga.h b/arch/arm/mach-orion5x/ts78xx-fpga.h
index 97c393d39ae2..2f4fe3ca5c1a 100644
--- a/arch/arm/mach-orion5x/ts78xx-fpga.h
+++ b/arch/arm/mach-orion5x/ts78xx-fpga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define TS7800_FPGA_MAGIC 0x00b480
 #define FPGAID(_magic, _rev) ((_magic << 8) + _rev)
 
diff --git a/arch/arm/mach-orion5x/tsx09-common.h b/arch/arm/mach-orion5x/tsx09-common.h
index 0984264616f0..72bedc6b82fb 100644
--- a/arch/arm/mach-orion5x/tsx09-common.h
+++ b/arch/arm/mach-orion5x/tsx09-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_ORION5X_TSX09_COMMON_H
 #define __ARCH_ORION5X_TSX09_COMMON_H
 
diff --git a/arch/arm/mach-prima2/Makefile b/arch/arm/mach-prima2/Makefile
index d7d02b043449..0fd2763031e9 100644
--- a/arch/arm/mach-prima2/Makefile
+++ b/arch/arm/mach-prima2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += rstc.o
 obj-y += common.o
 obj-y += rtciobrg.o
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index ef25dc597f30..0a8e9611052f 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-pxa/cm-x2xx-pci.h b/arch/arm/mach-pxa/cm-x2xx-pci.h
index e24aad2e3ad7..93ffaaee75d7 100644
--- a/arch/arm/mach-pxa/cm-x2xx-pci.h
+++ b/arch/arm/mach-pxa/cm-x2xx-pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 extern void __cmx2xx_pci_init_irq(int irq_gpio);
 extern void __cmx2xx_pci_suspend(void);
 extern void __cmx2xx_pci_resume(void);
diff --git a/arch/arm/mach-pxa/colibri.h b/arch/arm/mach-pxa/colibri.h
index cb4236e98a0f..673a131da875 100644
--- a/arch/arm/mach-pxa/colibri.h
+++ b/arch/arm/mach-pxa/colibri.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _COLIBRI_H_
 #define _COLIBRI_H_
 
diff --git a/arch/arm/mach-pxa/csb701.c b/arch/arm/mach-pxa/csb701.c
index 5a221a49ea4d..527c9fdf9795 100644
--- a/arch/arm/mach-pxa/csb701.c
+++ b/arch/arm/mach-pxa/csb701.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index fffb697bbf0e..5a72456a19ce 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index 04580c407276..905628dfbbbb 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 extern struct platform_device pxa_device_pmu;
 extern struct platform_device pxa_device_mci;
 extern struct platform_device pxa3xx_device_mci2;
diff --git a/arch/arm/mach-pxa/include/mach/addr-map.h b/arch/arm/mach-pxa/include/mach/addr-map.h
index 07b93fd24474..93cfe7dbfec6 100644
--- a/arch/arm/mach-pxa/include/mach/addr-map.h
+++ b/arch/arm/mach-pxa/include/mach/addr-map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_ADDR_MAP_H
 #define __ASM_MACH_ADDR_MAP_H
 
diff --git a/arch/arm/mach-pxa/include/mach/audio.h b/arch/arm/mach-pxa/include/mach/audio.h
index a3449e35a6f5..7beebf7297b5 100644
--- a/arch/arm/mach-pxa/include/mach/audio.h
+++ b/arch/arm/mach-pxa/include/mach/audio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_AUDIO_H__
 #define __ASM_ARCH_AUDIO_H__
 
diff --git a/arch/arm/mach-pxa/include/mach/bitfield.h b/arch/arm/mach-pxa/include/mach/bitfield.h
index f1f0e3387d9c..fe2ca441bc0a 100644
--- a/arch/arm/mach-pxa/include/mach/bitfield.h
+++ b/arch/arm/mach-pxa/include/mach/bitfield.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	FILE    	bitfield.h
  *
diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h
index cd78b7fe3567..d54031c4f3df 100644
--- a/arch/arm/mach-pxa/include/mach/io.h
+++ b/arch/arm/mach-pxa/include/mach/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-pxa/include/mach/io.h
  *
diff --git a/arch/arm/mach-pxa/include/mach/regs-ac97.h b/arch/arm/mach-pxa/include/mach/regs-ac97.h
index b8d14bd9ae59..1db96fd4df32 100644
--- a/arch/arm/mach-pxa/include/mach/regs-ac97.h
+++ b/arch/arm/mach-pxa/include/mach/regs-ac97.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_REGS_AC97_H
 #define __ASM_ARCH_REGS_AC97_H
 
diff --git a/arch/arm/mach-pxa/include/mach/regs-lcd.h b/arch/arm/mach-pxa/include/mach/regs-lcd.h
index f82dcea792d9..e2b6e3d1f625 100644
--- a/arch/arm/mach-pxa/include/mach/regs-lcd.h
+++ b/arch/arm/mach-pxa/include/mach/regs-lcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_REGS_LCD_H
 #define __ASM_ARCH_REGS_LCD_H
 
diff --git a/arch/arm/mach-pxa/include/mach/regs-ost.h b/arch/arm/mach-pxa/include/mach/regs-ost.h
index 628819995c52..deb564ed8ee7 100644
--- a/arch/arm/mach-pxa/include/mach/regs-ost.h
+++ b/arch/arm/mach-pxa/include/mach/regs-ost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_REGS_OST_H
 #define __ASM_MACH_REGS_OST_H
 
diff --git a/arch/arm/mach-pxa/include/mach/regs-uart.h b/arch/arm/mach-pxa/include/mach/regs-uart.h
index 55aeb7fb72f6..9a168f83afeb 100644
--- a/arch/arm/mach-pxa/include/mach/regs-uart.h
+++ b/arch/arm/mach-pxa/include/mach/regs-uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_REGS_UART_H
 #define __ASM_ARCH_REGS_UART_H
 
diff --git a/arch/arm/mach-pxa/include/mach/reset.h b/arch/arm/mach-pxa/include/mach/reset.h
index b6c10556fbc7..e1c4d100fd45 100644
--- a/arch/arm/mach-pxa/include/mach/reset.h
+++ b/arch/arm/mach-pxa/include/mach/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_RESET_H
 #define __ASM_ARCH_RESET_H
 
diff --git a/arch/arm/mach-pxa/include/mach/trizeps4.h b/arch/arm/mach-pxa/include/mach/trizeps4.h
index ae3ca013afab..3cddb1428c5e 100644
--- a/arch/arm/mach-pxa/include/mach/trizeps4.h
+++ b/arch/arm/mach-pxa/include/mach/trizeps4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /************************************************************************
  * Include file for TRIZEPS4 SoM and ConXS eval-board
  * Copyright (c) Jürgen Schindele
diff --git a/arch/arm/mach-pxa/littleton.h b/arch/arm/mach-pxa/littleton.h
index 8066be54e9f5..a0a8d2bf9d71 100644
--- a/arch/arm/mach-pxa/littleton.h
+++ b/arch/arm/mach-pxa/littleton.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_LITTLETON_H
 #define __ASM_ARCH_LITTLETON_H
 
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index d6159f8ef0c2..df45682e99a5 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -381,14 +381,11 @@ static struct pxafb_mach_info sharp_lm8v31 = {
 
 #define	MMC_POLL_RATE		msecs_to_jiffies(1000)
 
-static void lubbock_mmc_poll(unsigned long);
 static irq_handler_t mmc_detect_int;
+static void *mmc_detect_int_data;
+static struct timer_list mmc_timer;
 
-static struct timer_list mmc_timer = {
-	.function	= lubbock_mmc_poll,
-};
-
-static void lubbock_mmc_poll(unsigned long data)
+static void lubbock_mmc_poll(struct timer_list *unused)
 {
 	unsigned long flags;
 
@@ -401,7 +398,7 @@ static void lubbock_mmc_poll(unsigned long data)
 	if (LUB_IRQ_SET_CLR & (1 << 0))
 		mod_timer(&mmc_timer, jiffies + MMC_POLL_RATE);
 	else {
-		(void) mmc_detect_int(LUBBOCK_SD_IRQ, (void *)data);
+		(void) mmc_detect_int(LUBBOCK_SD_IRQ, mmc_detect_int_data);
 		enable_irq(LUBBOCK_SD_IRQ);
 	}
 }
@@ -421,8 +418,8 @@ static int lubbock_mci_init(struct device *dev,
 {
 	/* detect card insert/eject */
 	mmc_detect_int = detect_int;
-	init_timer(&mmc_timer);
-	mmc_timer.data = (unsigned long) data;
+	mmc_detect_int_data = data;
+	timer_setup(&mmc_timer, lubbock_mmc_poll, 0);
 	return request_irq(LUBBOCK_SD_IRQ, lubbock_detect_int,
 			   0, "lubbock-sd-detect", data);
 }
diff --git a/arch/arm/mach-pxa/mfp-pxa25x.h b/arch/arm/mach-pxa/mfp-pxa25x.h
index 1c59d4b3b19b..d0ebb2154503 100644
--- a/arch/arm/mach-pxa/mfp-pxa25x.h
+++ b/arch/arm/mach-pxa/mfp-pxa25x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_MFP_PXA25X_H
 #define __ASM_ARCH_MFP_PXA25X_H
 
diff --git a/arch/arm/mach-pxa/mfp-pxa27x.h b/arch/arm/mach-pxa/mfp-pxa27x.h
index 9fe5601ce668..9f5ffb785ff5 100644
--- a/arch/arm/mach-pxa/mfp-pxa27x.h
+++ b/arch/arm/mach-pxa/mfp-pxa27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_MFP_PXA27X_H
 #define __ASM_ARCH_MFP_PXA27X_H
 
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.h b/arch/arm/mach-pxa/mfp-pxa2xx.h
index cbf51ae81855..980145e7ee99 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.h
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_MFP_PXA2XX_H
 #define __ASM_ARCH_MFP_PXA2XX_H
 
diff --git a/arch/arm/mach-pxa/mfp-pxa3xx.h b/arch/arm/mach-pxa/mfp-pxa3xx.h
index d375195d982b..cdd830926d1c 100644
--- a/arch/arm/mach-pxa/mfp-pxa3xx.h
+++ b/arch/arm/mach-pxa/mfp-pxa3xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_MFP_PXA3XX_H
 #define __ASM_ARCH_MFP_PXA3XX_H
 
diff --git a/arch/arm/mach-pxa/mioa701.h b/arch/arm/mach-pxa/mioa701.h
index e57f5c724e8a..d94295c67460 100644
--- a/arch/arm/mach-pxa/mioa701.h
+++ b/arch/arm/mach-pxa/mioa701.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MIOA701_H_
 #define _MIOA701_H_
 
diff --git a/arch/arm/mach-pxa/mxm8x10.h b/arch/arm/mach-pxa/mxm8x10.h
index ffa15665a418..dcd32321c995 100644
--- a/arch/arm/mach-pxa/mxm8x10.h
+++ b/arch/arm/mach-pxa/mxm8x10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MXM_8X10_H
 #define __MACH_MXM_8X10_H
 
diff --git a/arch/arm/mach-pxa/pxa25x.h b/arch/arm/mach-pxa/pxa25x.h
index 2011e8da0592..b58d0fbdb4db 100644
--- a/arch/arm/mach-pxa/pxa25x.h
+++ b/arch/arm/mach-pxa/pxa25x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_PXA25x_H
 #define __MACH_PXA25x_H
 
diff --git a/arch/arm/mach-pxa/pxa27x-udc.h b/arch/arm/mach-pxa/pxa27x-udc.h
index 4cf28f670706..faf73804697f 100644
--- a/arch/arm/mach-pxa/pxa27x-udc.h
+++ b/arch/arm/mach-pxa/pxa27x-udc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_PXA27X_UDC_H
 #define _ASM_ARCH_PXA27X_UDC_H
 
diff --git a/arch/arm/mach-pxa/pxa27x.h b/arch/arm/mach-pxa/pxa27x.h
index 075131d83eab..abdc02fb4f03 100644
--- a/arch/arm/mach-pxa/pxa27x.h
+++ b/arch/arm/mach-pxa/pxa27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_PXA27x_H
 #define __MACH_PXA27x_H
 
diff --git a/arch/arm/mach-pxa/pxa300.h b/arch/arm/mach-pxa/pxa300.h
index 59fa41025c80..d02a8d15c7e8 100644
--- a/arch/arm/mach-pxa/pxa300.h
+++ b/arch/arm/mach-pxa/pxa300.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_PXA300_H
 #define __MACH_PXA300_H
 
diff --git a/arch/arm/mach-pxa/pxa320.h b/arch/arm/mach-pxa/pxa320.h
index b9e5115a1c30..c701e3f663b0 100644
--- a/arch/arm/mach-pxa/pxa320.h
+++ b/arch/arm/mach-pxa/pxa320.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_PXA320_H
 #define __MACH_PXA320_H
 
diff --git a/arch/arm/mach-pxa/pxa3xx.h b/arch/arm/mach-pxa/pxa3xx.h
index b4143fb6631f..6d4502aa9d06 100644
--- a/arch/arm/mach-pxa/pxa3xx.h
+++ b/arch/arm/mach-pxa/pxa3xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_PXA3XX_H	
 #define __MACH_PXA3XX_H
 
diff --git a/arch/arm/mach-pxa/pxa930.h b/arch/arm/mach-pxa/pxa930.h
index 4eceb02978e8..bbf25c044641 100644
--- a/arch/arm/mach-pxa/pxa930.h
+++ b/arch/arm/mach-pxa/pxa930.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_PXA930_H
 #define __MACH_PXA930_H
 
diff --git a/arch/arm/mach-pxa/regs-rtc.h b/arch/arm/mach-pxa/regs-rtc.h
index f0e4a589bbe1..b1f9ff14e335 100644
--- a/arch/arm/mach-pxa/regs-rtc.h
+++ b/arch/arm/mach-pxa/regs-rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_REGS_RTC_H
 #define __ASM_MACH_REGS_RTC_H
 
diff --git a/arch/arm/mach-pxa/regs-u2d.h b/arch/arm/mach-pxa/regs-u2d.h
index c15c0c57de08..fe4c80ad87ec 100644
--- a/arch/arm/mach-pxa/regs-u2d.h
+++ b/arch/arm/mach-pxa/regs-u2d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA3xx_U2D_H
 #define __ASM_ARCH_PXA3xx_U2D_H
 
diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 249b7bd5fbc4..398ba9ba2632 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -341,7 +341,7 @@ static void sharpsl_charge_toggle(struct work_struct *private_)
 	sharpsl_pm.charge_start_time = jiffies;
 }
 
-static void sharpsl_ac_timer(unsigned long data)
+static void sharpsl_ac_timer(struct timer_list *unused)
 {
 	int acin = sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN);
 
@@ -366,7 +366,7 @@ static irqreturn_t sharpsl_ac_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void sharpsl_chrg_full_timer(unsigned long data)
+static void sharpsl_chrg_full_timer(struct timer_list *unused)
 {
 	dev_dbg(sharpsl_pm.dev, "Charge Full at time: %lx\n", jiffies);
 
@@ -841,9 +841,9 @@ static int sharpsl_pm_probe(struct platform_device *pdev)
 	sharpsl_pm.charge_mode = CHRG_OFF;
 	sharpsl_pm.flags = 0;
 
-	setup_timer(&sharpsl_pm.ac_timer, sharpsl_ac_timer, 0UL);
+	timer_setup(&sharpsl_pm.ac_timer, sharpsl_ac_timer, 0);
 
-	setup_timer(&sharpsl_pm.chrg_full_timer, sharpsl_chrg_full_timer, 0UL);
+	timer_setup(&sharpsl_pm.chrg_full_timer, sharpsl_chrg_full_timer, 0);
 
 	led_trigger_register_simple("sharpsl-charge", &sharpsl_charge_led_trigger);
 
diff --git a/arch/arm/mach-pxa/smemc.c b/arch/arm/mach-pxa/smemc.c
index f38aa890b2c9..32e82cc92ea5 100644
--- a/arch/arm/mach-pxa/smemc.c
+++ b/arch/arm/mach-pxa/smemc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Static Memory Controller
  */
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 2d45d18b1a5e..6b7df6fd2448 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -29,6 +29,7 @@
 #include <linux/platform_data/pcf857x.h>
 #include <linux/platform_data/at24.h>
 #include <linux/smc91x.h>
+#include <linux/gpio/machine.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
 
@@ -52,7 +53,6 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/pxa2xx_spi.h>
 #include <linux/mfd/da903x.h>
-#include <linux/platform_data/sht15.h>
 
 #include "devices.h"
 #include "generic.h"
@@ -137,17 +137,18 @@ static unsigned long sg2_im2_unified_pin_config[] __initdata = {
 	GPIO10_GPIO, /* large basic connector pin 23 */
 };
 
-static struct sht15_platform_data platform_data_sht15 = {
-	.gpio_data =  100,
-	.gpio_sck  =  98,
+static struct gpiod_lookup_table sht15_gpiod_table = {
+	.dev_id = "sht15",
+	.table = {
+		/* FIXME: should this have |GPIO_OPEN_DRAIN set? */
+		GPIO_LOOKUP("gpio-pxa", 100, "data", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("gpio-pxa", 98, "clk", GPIO_ACTIVE_HIGH),
+	},
 };
 
 static struct platform_device sht15 = {
 	.name = "sht15",
 	.id = -1,
-	.dev = {
-		.platform_data = &platform_data_sht15,
-	},
 };
 
 static struct regulator_consumer_supply stargate2_sensor_3_con[] = {
@@ -608,6 +609,7 @@ static void __init imote2_init(void)
 
 	imote2_stargate2_init();
 
+	gpiod_add_lookup_table(&sht15_gpiod_table);
 	platform_add_devices(imote2_devices, ARRAY_SIZE(imote2_devices));
 
 	i2c_register_board_info(0, imote2_i2c_board_info,
@@ -988,6 +990,7 @@ static void __init stargate2_init(void)
 
 	imote2_stargate2_init();
 
+	gpiod_add_lookup_table(&sht15_gpiod_table);
 	platform_add_devices(ARRAY_AND_SIZE(stargate2_devices));
 
 	i2c_register_board_info(0, ARRAY_AND_SIZE(stargate2_i2c_board_info));
diff --git a/arch/arm/mach-pxa/zylonite.h b/arch/arm/mach-pxa/zylonite.h
index ecca976f03d2..7300ec2aac0d 100644
--- a/arch/arm/mach-pxa/zylonite.h
+++ b/arch/arm/mach-pxa/zylonite.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_ZYLONITE_H
 #define __ASM_ARCH_ZYLONITE_H
 
diff --git a/arch/arm/mach-rpc/fiq.S b/arch/arm/mach-rpc/fiq.S
index 48ddd57db16e..0de83e9b0b39 100644
--- a/arch/arm/mach-rpc/fiq.S
+++ b/arch/arm/mach-rpc/fiq.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 #include <mach/hardware.h>
diff --git a/arch/arm/mach-rpc/include/mach/entry-macro.S b/arch/arm/mach-rpc/include/mach/entry-macro.S
index 7178368d7062..a6d1a9f4bb79 100644
--- a/arch/arm/mach-rpc/include/mach/entry-macro.S
+++ b/arch/arm/mach-rpc/include/mach/entry-macro.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <mach/hardware.h>
 #include <asm/hardware/entry-macro-iomd.S>
 
diff --git a/arch/arm/mach-rpc/irq.c b/arch/arm/mach-rpc/irq.c
index 66502e6207fe..b8a61cb11207 100644
--- a/arch/arm/mach-rpc/irq.c
+++ b/arch/arm/mach-rpc/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
diff --git a/arch/arm/mach-s3c24xx/include/mach/io.h b/arch/arm/mach-s3c24xx/include/mach/io.h
index 235c53647aa4..f960e6d10114 100644
--- a/arch/arm/mach-s3c24xx/include/mach/io.h
+++ b/arch/arm/mach-s3c24xx/include/mach/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-s3c2410/include/mach/io.h
  *  from arch/arm/mach-rpc/include/mach/io.h
diff --git a/arch/arm/mach-s3c64xx/include/mach/dma.h b/arch/arm/mach-s3c64xx/include/mach/dma.h
index 9c739eafe95c..40ca8de21096 100644
--- a/arch/arm/mach-s3c64xx/include/mach/dma.h
+++ b/arch/arm/mach-s3c64xx/include/mach/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/arch/arm/mach-s3c6400/include/mach/dma.h
  *
  * Copyright 2008 Openmoko, Inc.
diff --git a/arch/arm/mach-s3c64xx/include/mach/irqs.h b/arch/arm/mach-s3c64xx/include/mach/irqs.h
index 3ceb00b5de07..c244e480e6b3 100644
--- a/arch/arm/mach-s3c64xx/include/mach/irqs.h
+++ b/arch/arm/mach-s3c64xx/include/mach/irqs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/arch/arm/mach-s3c64xx/include/mach/irqs.h
  *
  * Copyright 2008 Openmoko, Inc.
diff --git a/arch/arm/mach-s3c64xx/include/mach/regs-gpio.h b/arch/arm/mach-s3c64xx/include/mach/regs-gpio.h
index 81f7f6e6832e..592a2be3d2aa 100644
--- a/arch/arm/mach-s3c64xx/include/mach/regs-gpio.h
+++ b/arch/arm/mach-s3c64xx/include/mach/regs-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/arch/arm/plat-s3c64xx/include/mach/regs-gpio.h
  *
  * Copyright 2008 Openmoko, Inc.
diff --git a/arch/arm/mach-s3c64xx/regs-gpio-memport.h b/arch/arm/mach-s3c64xx/regs-gpio-memport.h
index b927593019f5..589afe1132d6 100644
--- a/arch/arm/mach-s3c64xx/regs-gpio-memport.h
+++ b/arch/arm/mach-s3c64xx/regs-gpio-memport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2008 Openmoko, Inc.
  * Copyright 2008 Simtec Electronics
diff --git a/arch/arm/mach-sa1100/Makefile b/arch/arm/mach-sa1100/Makefile
index ebc4d58e1a32..28c1cae0053f 100644
--- a/arch/arm/mach-sa1100/Makefile
+++ b/arch/arm/mach-sa1100/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index 7d52cd97d96e..b2eb3d232e39 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mach-sa1100/clock.c
  */
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index 68199b603ff7..97502922a15d 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/arch/arm/mach-sa1100/generic.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/SA-1100.h b/arch/arm/mach-sa1100/include/mach/SA-1100.h
index 7972617cca64..6e6ff3e18f0f 100644
--- a/arch/arm/mach-sa1100/include/mach/SA-1100.h
+++ b/arch/arm/mach-sa1100/include/mach/SA-1100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	FILE    	SA-1100.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/assabet.h b/arch/arm/mach-sa1100/include/mach/assabet.h
index c23fcdb047a5..558b45323a2d 100644
--- a/arch/arm/mach-sa1100/include/mach/assabet.h
+++ b/arch/arm/mach-sa1100/include/mach/assabet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/assabet.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h
index b478ca180c19..b7bc23ffd3c6 100644
--- a/arch/arm/mach-sa1100/include/mach/collie.h
+++ b/arch/arm/mach-sa1100/include/mach/collie.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/collie.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/hardware.h b/arch/arm/mach-sa1100/include/mach/hardware.h
index cc43f95f33cc..6f2dbdc28663 100644
--- a/arch/arm/mach-sa1100/include/mach/hardware.h
+++ b/arch/arm/mach-sa1100/include/mach/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/hardware.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/irqs.h b/arch/arm/mach-sa1100/include/mach/irqs.h
index 734e30e406a3..f4a41e665262 100644
--- a/arch/arm/mach-sa1100/include/mach/irqs.h
+++ b/arch/arm/mach-sa1100/include/mach/irqs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/irqs.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/memory.h b/arch/arm/mach-sa1100/include/mach/memory.h
index 2054051eb797..fa5cf4744992 100644
--- a/arch/arm/mach-sa1100/include/mach/memory.h
+++ b/arch/arm/mach-sa1100/include/mach/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/memory.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/neponset.h b/arch/arm/mach-sa1100/include/mach/neponset.h
index 5516a52a329d..18411cfdfe8e 100644
--- a/arch/arm/mach-sa1100/include/mach/neponset.h
+++ b/arch/arm/mach-sa1100/include/mach/neponset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/neponset.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/reset.h b/arch/arm/mach-sa1100/include/mach/reset.h
index f61957e6842a..27695650a567 100644
--- a/arch/arm/mach-sa1100/include/mach/reset.h
+++ b/arch/arm/mach-sa1100/include/mach/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_RESET_H
 #define __ASM_ARCH_RESET_H
 
diff --git a/arch/arm/mach-sa1100/include/mach/shannon.h b/arch/arm/mach-sa1100/include/mach/shannon.h
index fff39e02b496..d830375f329c 100644
--- a/arch/arm/mach-sa1100/include/mach/shannon.h
+++ b/arch/arm/mach-sa1100/include/mach/shannon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_SHANNON_H
 #define _INCLUDE_SHANNON_H
 
diff --git a/arch/arm/mach-sa1100/include/mach/simpad.h b/arch/arm/mach-sa1100/include/mach/simpad.h
index ac2ea767215d..d53d680de3d9 100644
--- a/arch/arm/mach-sa1100/include/mach/simpad.h
+++ b/arch/arm/mach-sa1100/include/mach/simpad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/simpad.h
  *
diff --git a/arch/arm/mach-sa1100/include/mach/uncompress.h b/arch/arm/mach-sa1100/include/mach/uncompress.h
index a1a041b9740b..f5eaa90a4576 100644
--- a/arch/arm/mach-sa1100/include/mach/uncompress.h
+++ b/arch/arm/mach-sa1100/include/mach/uncompress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/arm/mach-sa1100/include/mach/uncompress.h
  *
diff --git a/arch/arm/mach-sa1100/lart.c b/arch/arm/mach-sa1100/lart.c
index 51b0eb52c014..e3a0279750e3 100644
--- a/arch/arm/mach-sa1100/lart.c
+++ b/arch/arm/mach-sa1100/lart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-sa1100/lart.c
  */
diff --git a/arch/arm/mach-sa1100/neponset.c b/arch/arm/mach-sa1100/neponset.c
index 8411985af9ff..a61a2432766b 100644
--- a/arch/arm/mach-sa1100/neponset.c
+++ b/arch/arm/mach-sa1100/neponset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-sa1100/neponset.c
  */
diff --git a/arch/arm/mach-sa1100/pleb.c b/arch/arm/mach-sa1100/pleb.c
index 88149f85bc49..b2b0c9fc18f7 100644
--- a/arch/arm/mach-sa1100/pleb.c
+++ b/arch/arm/mach-sa1100/pleb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-sa1100/pleb.c
  */
diff --git a/arch/arm/mach-sa1100/shannon.c b/arch/arm/mach-sa1100/shannon.c
index c8866bce7386..856664c783d9 100644
--- a/arch/arm/mach-sa1100/shannon.c
+++ b/arch/arm/mach-sa1100/shannon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-sa1100/shannon.c
  */
diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index bb3ca9c763de..e8d25a7bbcb8 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/arm/mach-sa1100/simpad.c
  */
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 64611a1b4276..e16b81ec4b07 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-shmobile/common.h b/arch/arm/mach-shmobile/common.h
index 1a8f7b3ab449..f8fcd799d677 100644
--- a/arch/arm/mach-shmobile/common.h
+++ b/arch/arm/mach-shmobile/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_MACH_COMMON_H
 #define __ARCH_MACH_COMMON_H
 
diff --git a/arch/arm/mach-shmobile/emev2.h b/arch/arm/mach-shmobile/emev2.h
index 916d25f6780e..39f6cd8e6003 100644
--- a/arch/arm/mach-shmobile/emev2.h
+++ b/arch/arm/mach-shmobile/emev2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_EMEV2_H__
 #define __ASM_EMEV2_H__
 
diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c
index 3a4ed4c33a68..e348bcfe389d 100644
--- a/arch/arm/mach-shmobile/pm-rmobile.c
+++ b/arch/arm/mach-shmobile/pm-rmobile.c
@@ -120,18 +120,12 @@ static int rmobile_pd_power_up(struct generic_pm_domain *genpd)
 	return __rmobile_pd_power_up(to_rmobile_pd(genpd), true);
 }
 
-static bool rmobile_pd_active_wakeup(struct device *dev)
-{
-	return true;
-}
-
 static void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
 {
 	struct generic_pm_domain *genpd = &rmobile_pd->genpd;
 	struct dev_power_governor *gov = rmobile_pd->gov;
 
-	genpd->flags |= GENPD_FLAG_PM_CLK;
-	genpd->dev_ops.active_wakeup	= rmobile_pd_active_wakeup;
+	genpd->flags |= GENPD_FLAG_PM_CLK | GENPD_FLAG_ACTIVE_WAKEUP;
 	genpd->power_off		= rmobile_pd_power_down;
 	genpd->power_on			= rmobile_pd_power_up;
 	genpd->attach_dev		= cpg_mstp_attach_dev;
diff --git a/arch/arm/mach-shmobile/r8a7779.h b/arch/arm/mach-shmobile/r8a7779.h
index 2a5f7730a03c..30668aa6acc3 100644
--- a/arch/arm/mach-shmobile/r8a7779.h
+++ b/arch/arm/mach-shmobile/r8a7779.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_R8A7779_H__
 #define __ASM_R8A7779_H__
 
diff --git a/arch/arm/mach-shmobile/r8a7790.h b/arch/arm/mach-shmobile/r8a7790.h
index 136f3455e9c7..669c8cd09e07 100644
--- a/arch/arm/mach-shmobile/r8a7790.h
+++ b/arch/arm/mach-shmobile/r8a7790.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_R8A7790_H__
 #define __ASM_R8A7790_H__
 
diff --git a/arch/arm/mach-shmobile/r8a7791.h b/arch/arm/mach-shmobile/r8a7791.h
index cf7a8405bd7f..8c794aace938 100644
--- a/arch/arm/mach-shmobile/r8a7791.h
+++ b/arch/arm/mach-shmobile/r8a7791.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_R8A7791_H__
 #define __ASM_R8A7791_H__
 
diff --git a/arch/arm/mach-shmobile/rcar-gen2.h b/arch/arm/mach-shmobile/rcar-gen2.h
index 6792e249cf56..4777fff2de41 100644
--- a/arch/arm/mach-shmobile/rcar-gen2.h
+++ b/arch/arm/mach-shmobile/rcar-gen2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_RCAR_GEN2_H__
 #define __ASM_RCAR_GEN2_H__
 
diff --git a/arch/arm/mach-shmobile/sh73a0.h b/arch/arm/mach-shmobile/sh73a0.h
index 50ef24f780b3..85c7c7c60b1e 100644
--- a/arch/arm/mach-shmobile/sh73a0.h
+++ b/arch/arm/mach-shmobile/sh73a0.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH73A0_H__
 #define __ASM_SH73A0_H__
 
diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index ed15db19e561..9ec31fad7136 100644
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-spear/Makefile b/arch/arm/mach-spear/Makefile
index a946c19ab31a..176b14f83089 100644
--- a/arch/arm/mach-spear/Makefile
+++ b/arch/arm/mach-spear/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # SPEAr Platform specific Makefile
 #
diff --git a/arch/arm/mach-tango/Kconfig b/arch/arm/mach-tango/Kconfig
index ebe15b93bbe8..25b2fd434861 100644
--- a/arch/arm/mach-tango/Kconfig
+++ b/arch/arm/mach-tango/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_TANGO
 	bool "Sigma Designs Tango4 (SMP87xx)"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-tango/Makefile b/arch/arm/mach-tango/Makefile
index 204fcd9fe180..da6c633d3cc0 100644
--- a/arch/arm/mach-tango/Makefile
+++ b/arch/arm/mach-tango/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_smc.o := -Wa,-march=armv7-a$(plus_sec)
 
diff --git a/arch/arm/mach-tango/platsmp.c b/arch/arm/mach-tango/platsmp.c
index 2f0c6c050fed..65012afbc1a3 100644
--- a/arch/arm/mach-tango/platsmp.c
+++ b/arch/arm/mach-tango/platsmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/smp.h>
diff --git a/arch/arm/mach-tango/pm.c b/arch/arm/mach-tango/pm.c
index 406c0814eb6e..028e50c6383f 100644
--- a/arch/arm/mach-tango/pm.c
+++ b/arch/arm/mach-tango/pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/suspend.h>
 #include <asm/suspend.h>
diff --git a/arch/arm/mach-tango/setup.c b/arch/arm/mach-tango/setup.c
index f14b6c7d255b..677dd7b5efd9 100644
--- a/arch/arm/mach-tango/setup.c
+++ b/arch/arm/mach-tango/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/mach/arch.h>
 #include <asm/hardware/cache-l2x0.h>
 #include "smc.h"
diff --git a/arch/arm/mach-tango/smc.S b/arch/arm/mach-tango/smc.S
index 5d932ce3c1bd..361a8dc89804 100644
--- a/arch/arm/mach-tango/smc.S
+++ b/arch/arm/mach-tango/smc.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 ENTRY(tango_smc)
diff --git a/arch/arm/mach-tango/smc.h b/arch/arm/mach-tango/smc.h
index 57919539da1b..455ce3e06daf 100644
--- a/arch/arm/mach-tango/smc.h
+++ b/arch/arm/mach-tango/smc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 extern int tango_smc(unsigned int val, unsigned int service);
 
 #define tango_set_l2_control(val)	tango_smc(val, 0x102)
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index c8368d647741..1e0aeb47bac6 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_TEGRA
 	bool "NVIDIA Tegra"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 3b33f0bb78ae..6c1dff2eccc2 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 asflags-y				+= -march=armv7-a
 
 obj-y                                   += io.o
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 76e4c83cd5c8..3f24addd7972 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -179,7 +179,7 @@ static int tegra20_idle_lp2_coupled(struct cpuidle_device *dev,
 	bool entered_lp2 = false;
 
 	if (tegra_pending_sgi())
-		ACCESS_ONCE(abort_flag) = true;
+		WRITE_ONCE(abort_flag, true);
 
 	cpuidle_coupled_parallel_barrier(dev, &abort_barrier);
 
diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig
index 22dcbf5b76b2..4f43c1cd5db0 100644
--- a/arch/arm/mach-u300/Kconfig
+++ b/arch/arm/mach-u300/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_U300
 	bool "ST-Ericsson U300 Series"
 	depends on ARCH_MULTI_V5 && MMU
diff --git a/arch/arm/mach-uniphier/Kconfig b/arch/arm/mach-uniphier/Kconfig
index 3930fbba30b4..779235a9147d 100644
--- a/arch/arm/mach-uniphier/Kconfig
+++ b/arch/arm/mach-uniphier/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_UNIPHIER
 	bool "Socionext UniPhier SoCs"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 4740ac393297..f98332ea2ef2 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_U8500
 	bool "ST-Ericsson U8500 Series"
 	depends on ARCH_MULTI_V7 && MMU
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 71a34e8c345a..57058ac46f49 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -32,6 +32,7 @@
 #include <asm/mach/arch.h>
 
 #include "db8500-regs.h"
+#include "pm_domains.h"
 
 static int __init ux500_l2x0_unlock(void)
 {
@@ -157,6 +158,9 @@ static const struct of_device_id u8500_local_bus_nodes[] = {
 
 static void __init u8500_init_machine(void)
 {
+	/* Initialize ux500 power domains */
+	ux500_pm_domains_init();
+
 	/* automatically probe child nodes of dbx5x0 devices */
 	if (of_machine_is_compatible("st-ericsson,u8540"))
 		of_platform_populate(NULL, u8500_local_bus_nodes,
diff --git a/arch/arm/mach-ux500/pm.c b/arch/arm/mach-ux500/pm.c
index a970e7fcba9e..f6c33a0c1c61 100644
--- a/arch/arm/mach-ux500/pm.c
+++ b/arch/arm/mach-ux500/pm.c
@@ -19,7 +19,6 @@
 #include <linux/of_address.h>
 
 #include "db8500-regs.h"
-#include "pm_domains.h"
 
 /* ARM WFI Standby signal register */
 #define PRCM_ARM_WFI_STANDBY    (prcmu_base + 0x130)
@@ -203,7 +202,4 @@ void __init ux500_pm_init(u32 phy_base, u32 size)
 
 	/* Set up ux500 suspend callbacks. */
 	suspend_set_ops(UX500_SUSPEND_OPS);
-
-	/* Initialize ux500 power domains */
-	ux500_pm_domains_init();
 }
diff --git a/arch/arm/mach-versatile/Kconfig b/arch/arm/mach-versatile/Kconfig
index c257d40ca51d..f5c275434d6c 100644
--- a/arch/arm/mach-versatile/Kconfig
+++ b/arch/arm/mach-versatile/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_VERSATILE
 	bool "ARM Ltd. Versatile family"
 	depends on ARCH_MULTI_V5
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 7c728ebc0b33..726a68085c3b 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_VEXPRESS
 	bool "ARM Ltd. Versatile Express family"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-vexpress/Makefile b/arch/arm/mach-vexpress/Makefile
index 73caae71f307..51c35e2b737a 100644
--- a/arch/arm/mach-vexpress/Makefile
+++ b/arch/arm/mach-vexpress/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index a0400f4cca89..95886b3bb9dd 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/mach/arch.h>
 
 #include "core.h"
diff --git a/arch/arm/mach-vt8500/Kconfig b/arch/arm/mach-vt8500/Kconfig
index c4f1dba7bd8a..1156a585dafc 100644
--- a/arch/arm/mach-vt8500/Kconfig
+++ b/arch/arm/mach-vt8500/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_VT8500
 	bool
 	select GPIOLIB
diff --git a/arch/arm/mach-w90x900/Kconfig b/arch/arm/mach-w90x900/Kconfig
index 69bab32a8bc2..b16ffc03bbe5 100644
--- a/arch/arm/mach-w90x900/Kconfig
+++ b/arch/arm/mach-w90x900/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ARCH_W90X900
 
 config CPU_W90P910
diff --git a/arch/arm/mach-w90x900/Makefile b/arch/arm/mach-w90x900/Makefile
index 828c0326441e..33b5bf53990f 100644
--- a/arch/arm/mach-w90x900/Makefile
+++ b/arch/arm/mach-w90x900/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/mach-zx/Kconfig b/arch/arm/mach-zx/Kconfig
index 209c97944de2..ea29c84a7849 100644
--- a/arch/arm/mach-zx/Kconfig
+++ b/arch/arm/mach-zx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ARCH_ZX
 	bool "ZTE ZX family"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
index fd0aeeb09881..1ca633e3d024 100644
--- a/arch/arm/mach-zynq/Kconfig
+++ b/arch/arm/mach-zynq/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_ZYNQ
 	bool "Xilinx Zynq ARM Cortex A9 Platform"
 	depends on ARCH_MULTI_V7
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 60cdfdc151aa..fd9077a74fce 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 comment "Processor Type"
 
 # Select CPU types depending on the architecture selected.  This selects
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 950d19babb5f..f353ee569f6b 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux arm-specific parts of the memory manager.
 #
diff --git a/arch/arm/mm/abort-ev4.S b/arch/arm/mm/abort-ev4.S
index b3b31e30cadd..a10bcb89594d 100644
--- a/arch/arm/mm/abort-ev4.S
+++ b/arch/arm/mm/abort-ev4.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 /*
diff --git a/arch/arm/mm/abort-ev4t.S b/arch/arm/mm/abort-ev4t.S
index 9da704e7b86e..14743a2f6997 100644
--- a/arch/arm/mm/abort-ev4t.S
+++ b/arch/arm/mm/abort-ev4t.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 #include "abort-macro.S"
diff --git a/arch/arm/mm/abort-ev5t.S b/arch/arm/mm/abort-ev5t.S
index a6a381a6caa5..98c523118820 100644
--- a/arch/arm/mm/abort-ev5t.S
+++ b/arch/arm/mm/abort-ev5t.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 #include "abort-macro.S"
diff --git a/arch/arm/mm/abort-ev5tj.S b/arch/arm/mm/abort-ev5tj.S
index 00ab011bef58..fec72f4fbaf5 100644
--- a/arch/arm/mm/abort-ev5tj.S
+++ b/arch/arm/mm/abort-ev5tj.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 #include "abort-macro.S"
diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S
index 8801a15aa105..c58bf8b43fea 100644
--- a/arch/arm/mm/abort-ev6.S
+++ b/arch/arm/mm/abort-ev6.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 #include "abort-macro.S"
diff --git a/arch/arm/mm/abort-ev7.S b/arch/arm/mm/abort-ev7.S
index e8d0e08c227f..f7cc5d68444b 100644
--- a/arch/arm/mm/abort-ev7.S
+++ b/arch/arm/mm/abort-ev7.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 /*
diff --git a/arch/arm/mm/abort-lv4t.S b/arch/arm/mm/abort-lv4t.S
index 4cdfab31a0b6..fbd60a120f66 100644
--- a/arch/arm/mm/abort-lv4t.S
+++ b/arch/arm/mm/abort-lv4t.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 /*
diff --git a/arch/arm/mm/abort-macro.S b/arch/arm/mm/abort-macro.S
index 4509bee4e081..bacf53fd0b70 100644
--- a/arch/arm/mm/abort-macro.S
+++ b/arch/arm/mm/abort-macro.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The ARM LDRD and Thumb LDRSB instructions use bit 20/11 (ARM/Thumb)
  * differently than every other instruction, so it is set to 0 (write)
diff --git a/arch/arm/mm/abort-nommu.S b/arch/arm/mm/abort-nommu.S
index 119cb479c2ab..6e2366a26321 100644
--- a/arch/arm/mm/abort-nommu.S
+++ b/arch/arm/mm/abort-nommu.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 /*
diff --git a/arch/arm/mm/dma.h b/arch/arm/mm/dma.h
index 70ea6852f94e..aaef64b7f177 100644
--- a/arch/arm/mm/dma.h
+++ b/arch/arm/mm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DMA_H
 #define DMA_H
 
diff --git a/arch/arm/mm/extable.c b/arch/arm/mm/extable.c
index f436f7439e46..fc33564597b8 100644
--- a/arch/arm/mm/extable.c
+++ b/arch/arm/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mm/extable.c
  */
diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
index afc1f84e763b..c063708fa503 100644
--- a/arch/arm/mm/fault.h
+++ b/arch/arm/mm/fault.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_ARM_FAULT_H
 #define __ARCH_ARM_FAULT_H
 
diff --git a/arch/arm/mm/fsr-2level.c b/arch/arm/mm/fsr-2level.c
index 18ca74c0f341..f2be95197265 100644
--- a/arch/arm/mm/fsr-2level.c
+++ b/arch/arm/mm/fsr-2level.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 static struct fsr_info fsr_info[] = {
 	/*
 	 * The following are the standard ARMv3 and ARMv4 aborts.  ARMv5
diff --git a/arch/arm/mm/fsr-3level.c b/arch/arm/mm/fsr-3level.c
index ab4409a2307e..d0ae2963656a 100644
--- a/arch/arm/mm/fsr-3level.c
+++ b/arch/arm/mm/fsr-3level.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 static struct fsr_info fsr_info[] = {
 	{ do_bad,		SIGBUS,  0,		"unknown 0"			},
 	{ do_bad,		SIGBUS,  0,		"unknown 1"			},
diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c
index 3e511bec69b8..10bfba85eb96 100644
--- a/arch/arm/mm/idmap.c
+++ b/arch/arm/mm/idmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index 4614208369f1..091ddc56827e 100644
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mm/iomap.c
  *
diff --git a/arch/arm/mm/l2c-l2x0-resume.S b/arch/arm/mm/l2c-l2x0-resume.S
index fda415e4ca8f..fc01f1b18523 100644
--- a/arch/arm/mm/l2c-l2x0-resume.S
+++ b/arch/arm/mm/l2c-l2x0-resume.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * L2C-310 early resume code.  This can be used by platforms to restore
  * the settings of their L2 cache controller before restoring the
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index ce727d47275c..6b045c6653ea 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_MMU
 #include <linux/list.h>
 #include <linux/vmalloc.h>
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index f0701d8d24df..eb1de66517d5 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/arm/mm/mmap.c
  */
diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 3b8e728cc944..91537d90f5f5 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -344,6 +344,11 @@ void __init arm_mm_memblock_reserve(void)
 	 * reserved here.
 	 */
 #endif
+	/*
+	 * In any case, always ensure address 0 is never used as many things
+	 * get very confused if 0 is returned as a legitimate address.
+	 */
+	memblock_reserve(0, 1);
 }
 
 void __init adjust_lowmem_bounds(void)
diff --git a/arch/arm/mm/pabort-legacy.S b/arch/arm/mm/pabort-legacy.S
index 8bbff025269a..b2ffce420106 100644
--- a/arch/arm/mm/pabort-legacy.S
+++ b/arch/arm/mm/pabort-legacy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 
diff --git a/arch/arm/mm/pabort-v6.S b/arch/arm/mm/pabort-v6.S
index 9627646ce783..8686265dc941 100644
--- a/arch/arm/mm/pabort-v6.S
+++ b/arch/arm/mm/pabort-v6.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 
diff --git a/arch/arm/mm/pabort-v7.S b/arch/arm/mm/pabort-v7.S
index 875761f44f3b..9c70b1a21dc9 100644
--- a/arch/arm/mm/pabort-v7.S
+++ b/arch/arm/mm/pabort-v7.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/assembler.h>
 
diff --git a/arch/arm/mm/physaddr.c b/arch/arm/mm/physaddr.c
index 02e60f495608..cf75819e4c13 100644
--- a/arch/arm/mm/physaddr.c
+++ b/arch/arm/mm/physaddr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/export.h>
 #include <linux/types.h>
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
index f944836da8a2..f10e31d0730a 100644
--- a/arch/arm/mm/proc-macros.S
+++ b/arch/arm/mm/proc-macros.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * We need constants.h for:
  *  VMA_VM_MM
diff --git a/arch/arm/nwfpe/ARM-gcc.h b/arch/arm/nwfpe/ARM-gcc.h
index 436e54aa02ec..74389f5b0566 100644
--- a/arch/arm/nwfpe/ARM-gcc.h
+++ b/arch/arm/nwfpe/ARM-gcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 -------------------------------------------------------------------------------
 The macro `BITS64' can be defined to indicate that 64-bit integer types are
diff --git a/arch/arm/nwfpe/Makefile b/arch/arm/nwfpe/Makefile
index deb3a82ddbdf..303400fa2cdf 100644
--- a/arch/arm/nwfpe/Makefile
+++ b/arch/arm/nwfpe/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 1998, 1999, 2001 Philip Blundell
 #
diff --git a/arch/arm/oprofile/Makefile b/arch/arm/oprofile/Makefile
index b2215c61cdf0..39688dc9f181 100644
--- a/arch/arm/oprofile/Makefile
+++ b/arch/arm/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/arm/plat-iop/Makefile b/arch/arm/plat-iop/Makefile
index f2af203d601f..4d839a3cf284 100644
--- a/arch/arm/plat-iop/Makefile
+++ b/arch/arm/plat-iop/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 3e27bffb352d..7276afee30b3 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARCH_OMAP
 	bool
 
diff --git a/arch/arm/plat-omap/include/plat/sram.h b/arch/arm/plat-omap/include/plat/sram.h
index ba4525059a99..fb061cf0d736 100644
--- a/arch/arm/plat-omap/include/plat/sram.h
+++ b/arch/arm/plat-omap/include/plat/sram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 int omap_sram_init(void);
 
 void omap_map_sram(unsigned long start, unsigned long size,
diff --git a/arch/arm/plat-versatile/include/plat/sched_clock.h b/arch/arm/plat-versatile/include/plat/sched_clock.h
index 5c3e4fc9fa0c..83fdaef23c2e 100644
--- a/arch/arm/plat-versatile/include/plat/sched_clock.h
+++ b/arch/arm/plat-versatile/include/plat/sched_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARM_PLAT_SCHED_CLOCK_H
 #define ARM_PLAT_SCHED_CLOCK_H
 
diff --git a/arch/arm/probes/Makefile b/arch/arm/probes/Makefile
index aa1f8590dcdd..8b0ea5ace100 100644
--- a/arch/arm/probes/Makefile
+++ b/arch/arm/probes/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_UPROBES)		+= decode.o decode-arm.o uprobes/
 obj-$(CONFIG_KPROBES)		+= decode.o kprobes/
 ifdef CONFIG_THUMB2_KERNEL
diff --git a/arch/arm/probes/kprobes/Makefile b/arch/arm/probes/kprobes/Makefile
index 76a36bf102b7..14db56f49f0a 100644
--- a/arch/arm/probes/kprobes/Makefile
+++ b/arch/arm/probes/kprobes/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_KPROBES)		+= core.o actions-common.o checkers-common.o
 obj-$(CONFIG_ARM_KPROBES_TEST)	+= test-kprobes.o
 test-kprobes-objs		:= test-core.o
diff --git a/arch/arm/probes/kprobes/test-core.c b/arch/arm/probes/kprobes/test-core.c
index 1c98a87786ca..9ed0129bed3c 100644
--- a/arch/arm/probes/kprobes/test-core.c
+++ b/arch/arm/probes/kprobes/test-core.c
@@ -227,7 +227,6 @@ static bool test_regs_ok;
 static int test_func_instance;
 static int pre_handler_called;
 static int post_handler_called;
-static int jprobe_func_called;
 static int kretprobe_handler_called;
 static int tests_failed;
 
@@ -370,50 +369,6 @@ static int test_kprobe(long (*func)(long, long))
 	return 0;
 }
 
-static void __kprobes jprobe_func(long r0, long r1)
-{
-	jprobe_func_called = test_func_instance;
-	if (r0 == FUNC_ARG1 && r1 == FUNC_ARG2)
-		test_regs_ok = true;
-	jprobe_return();
-}
-
-static struct jprobe the_jprobe = {
-	.entry		= jprobe_func,
-};
-
-static int test_jprobe(long (*func)(long, long))
-{
-	int ret;
-
-	the_jprobe.kp.addr = (kprobe_opcode_t *)func;
-	ret = register_jprobe(&the_jprobe);
-	if (ret < 0) {
-		pr_err("FAIL: register_jprobe failed with %d\n", ret);
-		return ret;
-	}
-
-	ret = call_test_func(func, true);
-
-	unregister_jprobe(&the_jprobe);
-	the_jprobe.kp.flags = 0; /* Clear disable flag to allow reuse */
-
-	if (!ret)
-		return -EINVAL;
-	if (jprobe_func_called != test_func_instance) {
-		pr_err("FAIL: jprobe handler function not called\n");
-		return -EINVAL;
-	}
-	if (!call_test_func(func, false))
-		return -EINVAL;
-	if (jprobe_func_called == test_func_instance) {
-		pr_err("FAIL: probe called after unregistering\n");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
 static int __kprobes
 kretprobe_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
 {
@@ -451,7 +406,7 @@ static int test_kretprobe(long (*func)(long, long))
 	}
 	if (!call_test_func(func, false))
 		return -EINVAL;
-	if (jprobe_func_called == test_func_instance) {
+	if (kretprobe_handler_called == test_func_instance) {
 		pr_err("FAIL: kretprobe called after unregistering\n");
 		return -EINVAL;
 	}
@@ -468,18 +423,6 @@ static int run_api_tests(long (*func)(long, long))
 	if (ret < 0)
 		return ret;
 
-	pr_info("    jprobe\n");
-	ret = test_jprobe(func);
-#if defined(CONFIG_THUMB2_KERNEL) && !defined(MODULE)
-	if (ret == -EINVAL) {
-		pr_err("FAIL: Known longtime bug with jprobe on Thumb kernels\n");
-		tests_failed = ret;
-		ret = 0;
-	}
-#endif
-	if (ret < 0)
-		return ret;
-
 	pr_info("    kretprobe\n");
 	ret = test_kretprobe(func);
 	if (ret < 0)
diff --git a/arch/arm/tools/Makefile b/arch/arm/tools/Makefile
index 92eb5c3b486c..ddb89a7db36f 100644
--- a/arch/arm/tools/Makefile
+++ b/arch/arm/tools/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/arm/tools/Makefile
 #
diff --git a/arch/arm/tools/gen-mach-types b/arch/arm/tools/gen-mach-types
index 04fef71d7be9..cbe1c33bb871 100644
--- a/arch/arm/tools/gen-mach-types
+++ b/arch/arm/tools/gen-mach-types
@@ -1,4 +1,5 @@
 #!/bin/awk
+# SPDX-License-Identifier: GPL-2.0
 #
 # Awk script to generate include/generated/mach-types.h
 #
diff --git a/arch/arm/tools/syscallhdr.sh b/arch/arm/tools/syscallhdr.sh
index 72d4b2e3bdec..6b2f25cdd721 100644
--- a/arch/arm/tools/syscallhdr.sh
+++ b/arch/arm/tools/syscallhdr.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 in="$1"
 out="$2"
diff --git a/arch/arm/tools/syscallnr.sh b/arch/arm/tools/syscallnr.sh
index d2971296469a..df3ccd0ca831 100644
--- a/arch/arm/tools/syscallnr.sh
+++ b/arch/arm/tools/syscallnr.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 in="$1"
 out="$2"
 my_abis=`echo "($3)" | tr ',' '|'`
diff --git a/arch/arm/tools/syscalltbl.sh b/arch/arm/tools/syscalltbl.sh
index 5ca834545ed3..ae7e93cfbfd3 100644
--- a/arch/arm/tools/syscalltbl.sh
+++ b/arch/arm/tools/syscalltbl.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 in="$1"
 out="$2"
 my_abis=`echo "($3)" | tr ',' '|'`
diff --git a/arch/arm/vdso/Makefile b/arch/arm/vdso/Makefile
index 59a8fa7b8a3b..bb4118213fee 100644
--- a/arch/arm/vdso/Makefile
+++ b/arch/arm/vdso/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 hostprogs-y := vdsomunge
 
 obj-vdso := vgettimeofday.o datapage.o
diff --git a/arch/arm/vdso/datapage.S b/arch/arm/vdso/datapage.S
index a2e60367931b..9cd73b725d9f 100644
--- a/arch/arm/vdso/datapage.S
+++ b/arch/arm/vdso/datapage.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/asm-offsets.h>
 
diff --git a/arch/arm/vdso/vgettimeofday.c b/arch/arm/vdso/vgettimeofday.c
index 79214d5ff097..a9dd619c6c29 100644
--- a/arch/arm/vdso/vgettimeofday.c
+++ b/arch/arm/vdso/vgettimeofday.c
@@ -35,7 +35,7 @@ static notrace u32 __vdso_read_begin(const struct vdso_data *vdata)
 {
 	u32 seq;
 repeat:
-	seq = ACCESS_ONCE(vdata->seq_count);
+	seq = READ_ONCE(vdata->seq_count);
 	if (seq & 1) {
 		cpu_relax();
 		goto repeat;
diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index e71eefa2e427..0641ba54ab62 100644
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -1,7 +1,7 @@
 #include <linux/bootmem.h>
 #include <linux/gfp.h>
 #include <linux/export.h>
-#include <linux/rwlock.h>
+#include <linux/spinlock.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/dma-mapping.h>
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0df64a6a56d4..6205f521b648 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -22,7 +22,24 @@ config ARM64
 	select ARCH_HAS_STRICT_MODULE_RWX
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG if ACPI_APEI_SEA
+	select ARCH_INLINE_READ_LOCK if !PREEMPT
+	select ARCH_INLINE_READ_LOCK_BH if !PREEMPT
+	select ARCH_INLINE_READ_LOCK_IRQ if !PREEMPT
+	select ARCH_INLINE_READ_LOCK_IRQSAVE if !PREEMPT
+	select ARCH_INLINE_READ_UNLOCK if !PREEMPT
+	select ARCH_INLINE_READ_UNLOCK_BH if !PREEMPT
+	select ARCH_INLINE_READ_UNLOCK_IRQ if !PREEMPT
+	select ARCH_INLINE_READ_UNLOCK_IRQRESTORE if !PREEMPT
+	select ARCH_INLINE_WRITE_LOCK if !PREEMPT
+	select ARCH_INLINE_WRITE_LOCK_BH if !PREEMPT
+	select ARCH_INLINE_WRITE_LOCK_IRQ if !PREEMPT
+	select ARCH_INLINE_WRITE_LOCK_IRQSAVE if !PREEMPT
+	select ARCH_INLINE_WRITE_UNLOCK if !PREEMPT
+	select ARCH_INLINE_WRITE_UNLOCK_BH if !PREEMPT
+	select ARCH_INLINE_WRITE_UNLOCK_IRQ if !PREEMPT
+	select ARCH_INLINE_WRITE_UNLOCK_IRQRESTORE if !PREEMPT
 	select ARCH_USE_CMPXCHG_LOCKREF
+	select ARCH_USE_QUEUED_RWLOCKS
 	select ARCH_SUPPORTS_MEMORY_FAILURE
 	select ARCH_SUPPORTS_ATOMIC_RMW
 	select ARCH_SUPPORTS_NUMA_BALANCING
@@ -539,6 +556,25 @@ config QCOM_QDF2400_ERRATUM_0065
 
 	  If unsure, say Y.
 
+
+config SOCIONEXT_SYNQUACER_PREITS
+	bool "Socionext Synquacer: Workaround for GICv3 pre-ITS"
+	default y
+	help
+	  Socionext Synquacer SoCs implement a separate h/w block to generate
+	  MSI doorbell writes with non-zero values for the device ID.
+
+	  If unsure, say Y.
+
+config HISILICON_ERRATUM_161600802
+	bool "Hip07 161600802: Erroneous redistributor VLPI base"
+	default y
+	help
+	  The HiSilicon Hip07 SoC usees the wrong redistributor base
+	  when issued ITS commands such as VMOVP and VMAPP, and requires
+	  a 128kB offset to be applied to the target address in this commands.
+
+	  If unsure, say Y.
 endmenu
 
 
diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 6b54ee8c1262..1d03ef54295a 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -161,6 +161,9 @@ config ARCH_SEATTLE
 config ARCH_SHMOBILE
 	bool
 
+config ARCH_SYNQUACER
+	bool "Socionext SynQuacer SoC Family"
+
 config ARCH_RENESAS
 	bool "Renesas SoC Platforms"
 	select ARCH_SHMOBILE
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 9b41f1e3b1a0..939b310913cf 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -50,17 +50,22 @@ KBUILD_CFLAGS	+= -fno-asynchronous-unwind-tables
 KBUILD_CFLAGS	+= $(call cc-option, -mpc-relative-literal-loads)
 KBUILD_AFLAGS	+= $(lseinstr) $(brokengasinst)
 
+KBUILD_CFLAGS	+= $(call cc-option,-mabi=lp64)
+KBUILD_AFLAGS	+= $(call cc-option,-mabi=lp64)
+
 ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
 KBUILD_CPPFLAGS	+= -mbig-endian
 CHECKFLAGS	+= -D__AARCH64EB__
 AS		+= -EB
 LD		+= -EB
+LDFLAGS		+= -maarch64linuxb
 UTS_MACHINE	:= aarch64_be
 else
 KBUILD_CPPFLAGS	+= -mlittle-endian
 CHECKFLAGS	+= -D__AARCH64EL__
 AS		+= -EL
 LD		+= -EL
+LDFLAGS		+= -maarch64linux
 UTS_MACHINE	:= aarch64
 endif
 
diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 8e1951273fd7..c6684ab8e201 100644
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dts-dirs += actions
 dts-dirs += al
 dts-dirs += allwinner
diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
index 19c3fbd75eda..ff35e184e422 100644
--- a/arch/arm64/boot/dts/allwinner/Makefile
+++ b/arch/arm64/boot/dts/allwinner/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-bananapi-m64.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-nanopi-a64.dtb
 dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-olinuxino.dtb
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
index caf8b6fbe5e3..d06e34b5d192 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pine64.dts
@@ -61,13 +61,6 @@
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
-
-	reg_vcc3v3: vcc3v3 {
-		compatible = "regulator-fixed";
-		regulator-name = "vcc3v3";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-	};
 };
 
 &ehci0 {
@@ -91,7 +84,7 @@
 &mmc0 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc0_pins>;
-	vmmc-supply = <&reg_vcc3v3>;
+	vmmc-supply = <&reg_dcdc1>;
 	cd-gpios = <&pio 5 6 GPIO_ACTIVE_HIGH>;
 	cd-inverted;
 	disable-wp;
diff --git a/arch/arm64/boot/dts/amd/Makefile b/arch/arm64/boot/dts/amd/Makefile
index ba84770f789f..f9963d63006d 100644
--- a/arch/arm64/boot/dts/amd/Makefile
+++ b/arch/arm64/boot/dts/amd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SEATTLE) += amd-overdrive.dtb \
 			amd-overdrive-rev-b0.dtb amd-overdrive-rev-b1.dtb \
 			husky.dtb
diff --git a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts
index 8e3074a4947d..8e341be9a399 100644
--- a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts
+++ b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b0.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD Seattle Overdrive Development Board
  * Note: For Seattle Rev.B0
diff --git a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts
index ed5e043f37aa..92cef05c6b74 100644
--- a/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts
+++ b/arch/arm64/boot/dts/amd/amd-overdrive-rev-b1.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD Seattle Overdrive Development Board
  * Note: For Seattle Rev.B1
diff --git a/arch/arm64/boot/dts/amd/amd-overdrive.dts b/arch/arm64/boot/dts/amd/amd-overdrive.dts
index 128fa942f09e..41b3a6c0993d 100644
--- a/arch/arm64/boot/dts/amd/amd-overdrive.dts
+++ b/arch/arm64/boot/dts/amd/amd-overdrive.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD Seattle Overdrive Development Board
  *
diff --git a/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi
index f623c46525a6..2dd2c28171ee 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-clks.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD Seattle Clocks
  *
diff --git a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
index bd3adeac374f..125f4deb52fe 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD Seattle SoC
  *
diff --git a/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi b/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
index 8e8631952497..d97498361ce3 100644
--- a/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
+++ b/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD Seattle XGBE (RevB)
  *
diff --git a/arch/arm64/boot/dts/amd/husky.dts b/arch/arm64/boot/dts/amd/husky.dts
index 1381d4b2bf1b..7acde34772cb 100644
--- a/arch/arm64/boot/dts/amd/husky.dts
+++ b/arch/arm64/boot/dts/amd/husky.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DTS file for AMD/Linaro 96Boards Enterprise Edition Server (Husky) Board
  * Note: Based-on AMD Seattle Rev.B0
diff --git a/arch/arm64/boot/dts/amlogic/Makefile b/arch/arm64/boot/dts/amlogic/Makefile
index 7a9f48c27b1f..543416b8dff5 100644
--- a/arch/arm64/boot/dts/amlogic/Makefile
+++ b/arch/arm64/boot/dts/amlogic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nanopi-k2.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-nexbox-a95x.dtb
 dtb-$(CONFIG_ARCH_MESON) += meson-gxbb-odroidc2.dtb
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
index c89010e56488..4157987f4a3d 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx-p23x-q20x.dtsi
@@ -168,7 +168,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -194,7 +195,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -212,10 +214,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
index 9697a7a79464..4b17a76959b2 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nanopi-k2.dts
@@ -107,6 +107,9 @@
 
 		states = <3300000 0>,
 		         <1800000 1>;
+
+		regulator-settling-time-up-us = <100>;
+		regulator-settling-time-down-us = <5000>;
 	};
 
 	wifi_32k: wifi-32k {
@@ -250,7 +253,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins>, <&sdio_irq_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -276,11 +280,16 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
-	max-frequency = <100000000>;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
+	sd-uhs-sdr104;
+	max-frequency = <200000000>;
 	disable-wp;
 
 	cd-gpios = <&gpio CARD_6 GPIO_ACTIVE_HIGH>;
@@ -294,10 +303,10 @@
 &sd_emmc_c {
 	status = "disabled";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
 	disable-wp;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
index 9c59c3c6d1b6..38dfdde5c147 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-nexbox-a95x.dts
@@ -51,7 +51,7 @@
 / {
 	compatible = "nexbox,a95x", "amlogic,meson-gxbb";
 	model = "NEXBOX A95X";
-	
+
 	aliases {
 		serial0 = &uart_AO;
 	};
@@ -232,7 +232,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -253,7 +254,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -271,10 +273,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index d147c853ab05..1ffa1c238a72 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -50,7 +50,7 @@
 / {
 	compatible = "hardkernel,odroid-c2", "amlogic,meson-gxbb";
 	model = "Hardkernel ODROID-C2";
-	
+
 	aliases {
 		serial0 = &uart_AO;
 	};
@@ -253,7 +253,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -271,10 +272,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
 	disable-wp;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
index 81ffc689a5bf..23c08c3afd0a 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-p20x.dtsi
@@ -194,7 +194,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -220,10 +221,14 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
 	max-frequency = <100000000>;
 	disable-wp;
 
@@ -238,10 +243,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
index 346753fb6324..f2bc6dea1fc6 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-vega-s95.dtsi
@@ -155,7 +155,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins &sdio_irq_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -181,7 +182,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -198,10 +200,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
index 52f1687e7a09..af834cdbba79 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi
@@ -392,6 +392,17 @@
 			};
 		};
 
+		emmc_clk_gate_pins: emmc_clk_gate {
+			mux {
+				groups = "BOOT_8";
+				function = "gpio_periphs";
+			};
+			cfg-pull-down {
+				pins = "BOOT_8";
+				bias-pull-down;
+			};
+		};
+
 		nor_pins: nor {
 			mux {
 				groups = "nor_d",
@@ -430,6 +441,17 @@
 			};
 		};
 
+		sdcard_clk_gate_pins: sdcard_clk_gate {
+			mux {
+				groups = "CARD_2";
+				function = "gpio_periphs";
+			};
+			cfg-pull-down {
+				pins = "CARD_2";
+				bias-pull-down;
+			};
+		};
+
 		sdio_pins: sdio {
 			mux {
 				groups = "sdio_d0",
@@ -442,6 +464,17 @@
 			};
 		};
 
+		sdio_clk_gate_pins: sdio_clk_gate {
+			mux {
+				groups = "GPIOX_4";
+				function = "gpio_periphs";
+			};
+			cfg-pull-down {
+				pins = "GPIOX_4";
+				bias-pull-down;
+			};
+		};
+
 		sdio_irq_pins: sdio_irq {
 			mux {
 				groups = "sdio_irq";
@@ -661,21 +694,21 @@
 
 &sd_emmc_a {
 	clocks = <&clkc CLKID_SD_EMMC_A>,
-		 <&xtal>,
+		 <&clkc CLKID_SD_EMMC_A_CLK0>,
 		 <&clkc CLKID_FCLK_DIV2>;
 	clock-names = "core", "clkin0", "clkin1";
 };
 
 &sd_emmc_b {
 	clocks = <&clkc CLKID_SD_EMMC_B>,
-		 <&xtal>,
+		 <&clkc CLKID_SD_EMMC_B_CLK0>,
 		 <&clkc CLKID_FCLK_DIV2>;
 	clock-names = "core", "clkin0", "clkin1";
 };
 
 &sd_emmc_c {
 	clocks = <&clkc CLKID_SD_EMMC_C>,
-		 <&xtal>,
+		 <&clkc CLKID_SD_EMMC_C_CLK0>,
 		 <&clkc CLKID_FCLK_DIV2>;
 	clock-names = "core", "clkin0", "clkin1";
 };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
index 2a5804ce7f4b..977b4240f3c1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-hwacom-amazetv.dts
@@ -123,7 +123,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -141,10 +142,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <100000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
index 69ca14ac10fa..64c54c92e214 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-libretech-cc.dts
@@ -91,6 +91,9 @@
 
 		states = <3300000 0>,
 			 <1800000 1>;
+
+		regulator-settling-time-up-us = <200>;
+		regulator-settling-time-down-us = <50000>;
 	};
 
 	vddio_boot: regulator-vddio_boot {
@@ -197,10 +200,14 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
+	sd-uhs-sdr12;
+	sd-uhs-sdr25;
+	sd-uhs-sdr50;
 	max-frequency = <100000000>;
 	disable-wp;
 
@@ -215,10 +222,12 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
 	cap-mmc-highspeed;
+	mmc-ddr-3_3v;
 	max-frequency = <50000000>;
 	non-removable;
 	disable-wp;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts
index 4c2ac7650fcd..1b8f32867aa1 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-nexbox-a95x.dts
@@ -189,7 +189,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -210,7 +211,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -228,10 +230,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
index f3eea8e89d12..129af9068814 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl-s905x-p212.dtsi
@@ -95,7 +95,8 @@
 &sd_emmc_a {
 	status = "okay";
 	pinctrl-0 = <&sdio_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdio_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 	#address-cells = <1>;
 	#size-cells = <0>;
 
@@ -116,7 +117,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -134,10 +136,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
index d6876e64979e..d8dd3298b15c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi
@@ -281,6 +281,17 @@
 			};
 		};
 
+		emmc_clk_gate_pins: emmc_clk_gate {
+			mux {
+				groups = "BOOT_8";
+				function = "gpio_periphs";
+			};
+			cfg-pull-down {
+				pins = "BOOT_8";
+				bias-pull-down;
+			};
+		};
+
 		nor_pins: nor {
 			mux {
 				groups = "nor_d",
@@ -319,6 +330,17 @@
 			};
 		};
 
+		sdcard_clk_gate_pins: sdcard_clk_gate {
+			mux {
+				groups = "CARD_2";
+				function = "gpio_periphs";
+			};
+			cfg-pull-down {
+				pins = "CARD_2";
+				bias-pull-down;
+			};
+		};
+
 		sdio_pins: sdio {
 			mux {
 				groups = "sdio_d0",
@@ -331,6 +353,17 @@
 			};
 		};
 
+		sdio_clk_gate_pins: sdio_clk_gate {
+			mux {
+				groups = "GPIOX_4";
+				function = "gpio_periphs";
+			};
+			cfg-pull-down {
+				pins = "GPIOX_4";
+				bias-pull-down;
+			};
+		};
+
 		sdio_irq_pins: sdio_irq {
 			mux {
 				groups = "sdio_irq";
@@ -603,21 +636,21 @@
 
 &sd_emmc_a {
 	clocks = <&clkc CLKID_SD_EMMC_A>,
-		 <&xtal>,
+		 <&clkc CLKID_SD_EMMC_A_CLK0>,
 		 <&clkc CLKID_FCLK_DIV2>;
 	clock-names = "core", "clkin0", "clkin1";
 };
 
 &sd_emmc_b {
 	clocks = <&clkc CLKID_SD_EMMC_B>,
-		 <&xtal>,
+		 <&clkc CLKID_SD_EMMC_B_CLK0>,
 		 <&clkc CLKID_FCLK_DIV2>;
        clock-names = "core", "clkin0", "clkin1";
 };
 
 &sd_emmc_c {
 	clocks = <&clkc CLKID_SD_EMMC_C>,
-		 <&xtal>,
+		 <&clkc CLKID_SD_EMMC_C_CLK0>,
 		 <&clkc CLKID_FCLK_DIV2>;
 	clock-names = "core", "clkin0", "clkin1";
 };
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
index 9b10c5f4f8c0..22c697732f66 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-nexbox-a1.dts
@@ -175,7 +175,8 @@
 &sd_emmc_b {
 	status = "okay";
 	pinctrl-0 = <&sdcard_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&sdcard_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <4>;
 	cap-sd-highspeed;
@@ -193,10 +194,10 @@
 &sd_emmc_c {
 	status = "okay";
 	pinctrl-0 = <&emmc_pins>;
-	pinctrl-names = "default";
+	pinctrl-1 = <&emmc_clk_gate_pins>;
+	pinctrl-names = "default", "clk-gate";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
index 08f1dd69b679..470f72bb863c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxm-rbox-pro.dts
@@ -220,7 +220,6 @@
 	pinctrl-names = "default";
 
 	bus-width = <8>;
-	cap-sd-highspeed;
 	cap-mmc-highspeed;
 	max-frequency = <200000000>;
 	non-removable;
diff --git a/arch/arm64/boot/dts/apm/Makefile b/arch/arm64/boot/dts/apm/Makefile
index c75f17a49471..a10fbdb34229 100644
--- a/arch/arm64/boot/dts/apm/Makefile
+++ b/arch/arm64/boot/dts/apm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_XGENE) += apm-mustang.dtb
 dtb-$(CONFIG_ARCH_XGENE) += apm-merlin.dtb
 
diff --git a/arch/arm64/boot/dts/arm/Makefile b/arch/arm64/boot/dts/arm/Makefile
index 75cc2aa10101..470378addca4 100644
--- a/arch/arm64/boot/dts/arm/Makefile
+++ b/arch/arm64/boot/dts/arm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_VEXPRESS) += foundation-v8.dtb foundation-v8-gicv3.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += juno.dtb juno-r1.dtb juno-r2.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb
diff --git a/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dts b/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dts
index 35588dfa095c..4825cdbdcf46 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dts
+++ b/arch/arm64/boot/dts/arm/foundation-v8-gicv3.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd.
  *
diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dts b/arch/arm64/boot/dts/arm/foundation-v8.dts
index 71168077312d..8a9136f4ab74 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8.dts
+++ b/arch/arm64/boot/dts/arm/foundation-v8.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd.
  *
diff --git a/arch/arm64/boot/dts/arm/foundation-v8.dtsi b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
index 8ecdd4331980..f0b67e439f58 100644
--- a/arch/arm64/boot/dts/arm/foundation-v8.dtsi
+++ b/arch/arm64/boot/dts/arm/foundation-v8.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd.
  *
diff --git a/arch/arm64/boot/dts/arm/juno-base.dtsi b/arch/arm64/boot/dts/arm/juno-base.dtsi
index fbafe62d6b22..f165f04db0c9 100644
--- a/arch/arm64/boot/dts/arm/juno-base.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-base.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "juno-clocks.dtsi"
 
 / {
diff --git a/arch/arm64/boot/dts/arm/juno-cs-r1r2.dtsi b/arch/arm64/boot/dts/arm/juno-cs-r1r2.dtsi
index aa03050dd7df..0c43fb3525eb 100644
--- a/arch/arm64/boot/dts/arm/juno-cs-r1r2.dtsi
+++ b/arch/arm64/boot/dts/arm/juno-cs-r1r2.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	funnel@20130000 { /* cssys1 */
 		compatible = "arm,coresight-funnel", "arm,primecell";
diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts b/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
index a83ed2c6bbf7..7810632d3438 100644
--- a/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
+++ b/arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Fast Models
  *
diff --git a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
index 528875c75598..e18fe006cc2a 100644
--- a/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
+++ b/arch/arm64/boot/dts/arm/rtsm_ve-motherboard.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Fast Models
  *
diff --git a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
index e3a171162bb4..2cb604957808 100644
--- a/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
+++ b/arch/arm64/boot/dts/arm/vexpress-v2f-1xv7-ca53x2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARM Ltd. Versatile Express
  *
diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index 3eaef3895d66..3df2db7f8878 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_BCM2835) += bcm2837-rpi-3-b.dtb
 
 dts-dirs	+= northstar2
diff --git a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
index 699d340a3437..89b78d6c19bf 100644
--- a/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm2837-rpi-3-b.dts
@@ -1 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "arm/bcm2837-rpi-3-b.dts"
diff --git a/arch/arm64/boot/dts/broadcom/stingray/Makefile b/arch/arm64/boot/dts/broadcom/stingray/Makefile
index f70028edad63..04bb302f3233 100644
--- a/arch/arm64/boot/dts/broadcom/stingray/Makefile
+++ b/arch/arm64/boot/dts/broadcom/stingray/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742k.dtb
 dtb-$(CONFIG_ARCH_BCM_IPROC) += bcm958742t.dtb
 
diff --git a/arch/arm64/boot/dts/cavium/Makefile b/arch/arm64/boot/dts/cavium/Makefile
index 581b2c1c400a..9f68c277302b 100644
--- a/arch/arm64/boot/dts/cavium/Makefile
+++ b/arch/arm64/boot/dts/cavium/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_THUNDER) += thunder-88xx.dtb
 dtb-$(CONFIG_ARCH_THUNDER2) += thunder2-99xx.dtb
 
diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
index 7ddea53769a7..6914b2cbd397 100644
--- a/arch/arm64/boot/dts/exynos/Makefile
+++ b/arch/arm64/boot/dts/exynos/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_EXYNOS) += \
 	exynos5433-tm2.dtb	\
 	exynos5433-tm2e.dtb	\
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 72c4b525726f..dc02e82aba7c 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1012a-frdm.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1012a-qds.dtb
 dtb-$(CONFIG_ARCH_LAYERSCAPE) += fsl-ls1012a-rdb.dtb
diff --git a/arch/arm64/boot/dts/hisilicon/Makefile b/arch/arm64/boot/dts/hisilicon/Makefile
index 8960ecafd37d..521ed484a5d1 100644
--- a/arch/arm64/boot/dts/hisilicon/Makefile
+++ b/arch/arm64/boot/dts/hisilicon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_HISI) += hi3660-hikey960.dtb
 dtb-$(CONFIG_ARCH_HISI) += hi3798cv200-poplar.dtb
 dtb-$(CONFIG_ARCH_HISI) += hi6220-hikey.dtb
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
index fd4705c451e2..e9f87cb61ade 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for Hisilicon HiKey960 Development Board
  *
diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
index b7a90d632959..13ae69f5a327 100644
--- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for Hisilicon Hi3660 SoC
  *
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 2b526304ed27..3aee6123d161 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for Hisilicon HiKey Development Board
  *
diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index 02a3aa4b2165..ff1dc89f599e 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for Hisilicon Hi6220 SoC
  *
diff --git a/arch/arm64/boot/dts/hisilicon/hikey-pinctrl.dtsi b/arch/arm64/boot/dts/hisilicon/hikey-pinctrl.dtsi
index 0916e8459d6b..e7d22619a4c0 100644
--- a/arch/arm64/boot/dts/hisilicon/hikey-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hikey-pinctrl.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * pinctrl dts fils for Hislicon HiKey development board
  *
diff --git a/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi b/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi
index 7e542d28dadb..d11efc81958c 100644
--- a/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hikey960-pinctrl.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * pinctrl dts fils for Hislicon HiKey960 development board
  *
diff --git a/arch/arm64/boot/dts/lg/Makefile b/arch/arm64/boot/dts/lg/Makefile
index 5c7b54c12adc..e345b8e58efe 100644
--- a/arch/arm64/boot/dts/lg/Makefile
+++ b/arch/arm64/boot/dts/lg/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_LG1K) += lg1312-ref.dtb
 dtb-$(CONFIG_ARCH_LG1K) += lg1313-ref.dtb
 
diff --git a/arch/arm64/boot/dts/lg/lg1312-ref.dts b/arch/arm64/boot/dts/lg/lg1312-ref.dts
index 6d78d6bc7f9c..260a2c5b19e5 100644
--- a/arch/arm64/boot/dts/lg/lg1312-ref.dts
+++ b/arch/arm64/boot/dts/lg/lg1312-ref.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for lg1312 Reference Board.
  *
diff --git a/arch/arm64/boot/dts/lg/lg1312.dtsi b/arch/arm64/boot/dts/lg/lg1312.dtsi
index fbafa24cd533..860c8fb10795 100644
--- a/arch/arm64/boot/dts/lg/lg1312.dtsi
+++ b/arch/arm64/boot/dts/lg/lg1312.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for lg1312 SoC
  *
diff --git a/arch/arm64/boot/dts/lg/lg1313-ref.dts b/arch/arm64/boot/dts/lg/lg1313-ref.dts
index df0ece43cfbf..e89ae853788a 100644
--- a/arch/arm64/boot/dts/lg/lg1313-ref.dts
+++ b/arch/arm64/boot/dts/lg/lg1313-ref.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for lg1313 Reference Board.
  *
diff --git a/arch/arm64/boot/dts/lg/lg1313.dtsi b/arch/arm64/boot/dts/lg/lg1313.dtsi
index e703e1149c75..1887af654a7d 100644
--- a/arch/arm64/boot/dts/lg/lg1313.dtsi
+++ b/arch/arm64/boot/dts/lg/lg1313.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dts file for lg1313 SoC
  *
diff --git a/arch/arm64/boot/dts/marvell/Makefile b/arch/arm64/boot/dts/marvell/Makefile
index 6cff81eeaae2..5633676fa9d0 100644
--- a/arch/arm64/boot/dts/marvell/Makefile
+++ b/arch/arm64/boot/dts/marvell/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Berlin SoC Family
 dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-dmp.dtb
 dtb-$(CONFIG_ARCH_BERLIN) += berlin4ct-stb.dtb
diff --git a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
index 4d360713ed12..30d48ecf46e0 100644
--- a/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-ap806.dtsi
@@ -254,7 +254,7 @@
 
 			ap_syscon: system-controller@6f4000 {
 				compatible = "syscon", "simple-mfd";
-				reg = <0x6f4000 0x1000>;
+				reg = <0x6f4000 0x2000>;
 
 				ap_clk: clock {
 					compatible = "marvell,ap806-clock";
@@ -265,7 +265,7 @@
 					compatible = "marvell,ap806-pinctrl";
 				};
 
-				ap_gpio: gpio {
+				ap_gpio: gpio@1040 {
 					compatible = "marvell,armada-8k-gpio";
 					offset = <0x1040>;
 					ngpios = <20>;
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
index 8263a8a504a8..f2aa2a81de4d 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-master.dtsi
@@ -336,7 +336,7 @@
 				/* non-prefetchable memory */
 				0x82000000 0 0xf6000000 0  0xf6000000 0 0xf00000>;
 			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &cpm_icu 0 ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map = <0 0 0 0 &cpm_icu ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
 			interrupts = <ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
 			num-lanes = <1>;
 			clocks = <&cpm_clk 1 13>;
@@ -362,7 +362,7 @@
 				/* non-prefetchable memory */
 				0x82000000 0 0xf7000000 0  0xf7000000 0 0xf00000>;
 			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &cpm_icu 0 ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map = <0 0 0 0 &cpm_icu ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
 			interrupts = <ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
 
 			num-lanes = <1>;
@@ -389,7 +389,7 @@
 				/* non-prefetchable memory */
 				0x82000000 0 0xf8000000 0  0xf8000000 0 0xf00000>;
 			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &cpm_icu 0 ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map = <0 0 0 0 &cpm_icu ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
 			interrupts = <ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
 
 			num-lanes = <1>;
diff --git a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
index b71ee6c83668..4fe70323abb3 100644
--- a/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-cp110-slave.dtsi
@@ -335,7 +335,7 @@
 				/* non-prefetchable memory */
 				0x82000000 0 0xfa000000 0  0xfa000000 0 0xf00000>;
 			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &cps_icu 0 ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
 			interrupts = <ICU_GRP_NSR 22 IRQ_TYPE_LEVEL_HIGH>;
 			num-lanes = <1>;
 			clocks = <&cps_clk 1 13>;
@@ -361,7 +361,7 @@
 				/* non-prefetchable memory */
 				0x82000000 0 0xfb000000 0  0xfb000000 0 0xf00000>;
 			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &cps_icu 0 ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
 			interrupts = <ICU_GRP_NSR 24 IRQ_TYPE_LEVEL_HIGH>;
 
 			num-lanes = <1>;
@@ -388,7 +388,7 @@
 				/* non-prefetchable memory */
 				0x82000000 0 0xfc000000 0  0xfc000000 0 0xf00000>;
 			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &cps_icu 0 ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-map = <0 0 0 0 &cps_icu ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
 			interrupts = <ICU_GRP_NSR 23 IRQ_TYPE_LEVEL_HIGH>;
 
 			num-lanes = <1>;
diff --git a/arch/arm64/boot/dts/mediatek/Makefile b/arch/arm64/boot/dts/mediatek/Makefile
index 151723b5c733..1d05d1824fa9 100644
--- a/arch/arm64/boot/dts/mediatek/Makefile
+++ b/arch/arm64/boot/dts/mediatek/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt2712-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt6755-evb.dtb
 dtb-$(CONFIG_ARCH_MEDIATEK) += mt6795-evb.dtb
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index b99a27372965..26396ef53bde 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -682,8 +682,7 @@
 		};
 
 		mmc0: mmc@11230000 {
-			compatible = "mediatek,mt8173-mmc",
-				     "mediatek,mt8135-mmc";
+			compatible = "mediatek,mt8173-mmc";
 			reg = <0 0x11230000 0 0x1000>;
 			interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_MSDC30_0>,
@@ -693,8 +692,7 @@
 		};
 
 		mmc1: mmc@11240000 {
-			compatible = "mediatek,mt8173-mmc",
-				     "mediatek,mt8135-mmc";
+			compatible = "mediatek,mt8173-mmc";
 			reg = <0 0x11240000 0 0x1000>;
 			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_MSDC30_1>,
@@ -704,8 +702,7 @@
 		};
 
 		mmc2: mmc@11250000 {
-			compatible = "mediatek,mt8173-mmc",
-				     "mediatek,mt8135-mmc";
+			compatible = "mediatek,mt8173-mmc";
 			reg = <0 0x11250000 0 0x1000>;
 			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_MSDC30_2>,
@@ -715,8 +712,7 @@
 		};
 
 		mmc3: mmc@11260000 {
-			compatible = "mediatek,mt8173-mmc",
-				     "mediatek,mt8135-mmc";
+			compatible = "mediatek,mt8173-mmc";
 			reg = <0 0x11260000 0 0x1000>;
 			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_LOW>;
 			clocks = <&pericfg CLK_PERI_MSDC30_3>,
diff --git a/arch/arm64/boot/dts/nvidia/Makefile b/arch/arm64/boot/dts/nvidia/Makefile
index 18941458cb4d..6bc0c6ab4b7f 100644
--- a/arch/arm64/boot/dts/nvidia/Makefile
+++ b/arch/arm64/boot/dts/nvidia/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_TEGRA_132_SOC) += tegra132-norrin.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-0000.dtb
 dtb-$(CONFIG_ARCH_TEGRA_210_SOC) += tegra210-p2371-2180.dtb
diff --git a/arch/arm64/boot/dts/nvidia/tegra132-norrin.dts b/arch/arm64/boot/dts/nvidia/tegra132-norrin.dts
index 759af96a6b49..a0385a386a3f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra132-norrin.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra132-norrin.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra132.dtsi b/arch/arm64/boot/dts/nvidia/tegra132.dtsi
index c2f0f2743578..fa5a7c4bc807 100644
--- a/arch/arm64/boot/dts/nvidia/tegra132.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra132.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra124-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/memory/tegra124-mc.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
index 8daadadec63a..c71d762bf697 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p2771-0000.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/linux-event-codes.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi b/arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi
index cf84d7046ad5..54f418d05e15 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186-p3310.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tegra186.dtsi"
 
 #include <dt-bindings/mfd/max77620.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 0b0552c9f7dd..a9c3eef6c4e0 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra186-clock.h>
 #include <dt-bindings/gpio/tegra186-gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
index 906fb836d241..d10d4430537a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2180.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/mfd/max77620.h>
 
 #include "tegra210.dtsi"
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-0000.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-0000.dts
index 1ddd8512e100..21c6d3749bc6 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-0000.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra210-p2530.dtsi"
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
index 7cb95e042117..37e3c46e753f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "tegra210-p2180.dtsi"
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
index 0ec92578cacb..be6066ff97c9 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2530.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tegra210.dtsi"
 
 / {
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2571.dts b/arch/arm64/boot/dts/nvidia/tegra210-p2571.dts
index 576957a55801..e2a347e57215 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2571.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2571.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2595.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2595.dtsi
index e008e3364d2a..6ae292da7294 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2595.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2595.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	model = "NVIDIA Tegra210 P2595 I/O board";
 	compatible = "nvidia,p2595", "nvidia,tegra210";
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
index e5fc67bf46c2..d67ef4319f3b 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210-p2597.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/input/input.h>
 
 / {
diff --git a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
index 7703227f5d1a..43cae4798870 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra210-smaug.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/input/input.h>
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 29f471e0f22a..9bdf19f2cca7 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/tegra210-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/memory/tegra210-mc.h>
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index ff81d7e5805e..e7b25bee3f1e 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_QCOM)	+= apq8016-sbc.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= apq8096-db820c.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= ipq8074-hk01.dtb
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
index 790b7775b901..ec2f0de67993 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-pmic-pins.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 #include <dt-bindings/pinctrl/qcom,pmic-mpp.h>
 
diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
index 185388de914c..21d0822f1ca6 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc-soc-pins.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <dt-bindings/gpio/gpio.h>
 
diff --git a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
index 8e379782597a..59b29ddfb6e9 100644
--- a/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
+++ b/arch/arm64/boot/dts/qcom/apq8096-db820c-pmic-pins.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
 &pm8994_gpios {
diff --git a/arch/arm64/boot/dts/qcom/pm8004.dtsi b/arch/arm64/boot/dts/qcom/pm8004.dtsi
index ef2207afa86b..297b57bfa87a 100644
--- a/arch/arm64/boot/dts/qcom/pm8004.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8004.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
 
diff --git a/arch/arm64/boot/dts/qcom/pm8916.dtsi b/arch/arm64/boot/dts/qcom/pm8916.dtsi
index 53deebf9f515..0223e60d8b6a 100644
--- a/arch/arm64/boot/dts/qcom/pm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8916.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/iio/qcom,spmi-vadc.h>
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
diff --git a/arch/arm64/boot/dts/qcom/pm8994.dtsi b/arch/arm64/boot/dts/qcom/pm8994.dtsi
index b413e44fd09e..80024c0b1c7c 100644
--- a/arch/arm64/boot/dts/qcom/pm8994.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm8994.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
 
diff --git a/arch/arm64/boot/dts/qcom/pmi8994.dtsi b/arch/arm64/boot/dts/qcom/pmi8994.dtsi
index 57673f92805d..dae1cdc23f54 100644
--- a/arch/arm64/boot/dts/qcom/pmi8994.dtsi
+++ b/arch/arm64/boot/dts/qcom/pmi8994.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/spmi/spmi.h>
 
diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 381928bc1358..d417701640bd 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-x.dtb r8a7795-h3ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-salvator-xs.dtb
 dtb-$(CONFIG_ARCH_R8A7795) += r8a7795-es1-salvator-x.dtb r8a7795-es1-h3ulcb.dtb
diff --git a/arch/arm64/boot/dts/renesas/salvator-common.dtsi b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
index 4786c67b5e65..d9d885006a8e 100644
--- a/arch/arm64/boot/dts/renesas/salvator-common.dtsi
+++ b/arch/arm64/boot/dts/renesas/salvator-common.dtsi
@@ -62,6 +62,7 @@
 		brightness-levels = <256 128 64 16 8 4 0>;
 		default-brightness-level = <6>;
 
+		power-supply = <&reg_12v>;
 		enable-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>;
 	};
 
@@ -83,6 +84,15 @@
 		regulator-always-on;
 	};
 
+	reg_12v: regulator2 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-12V";
+		regulator-min-microvolt = <12000000>;
+		regulator-max-microvolt = <12000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
 	rsnd_ak4613: sound {
 		compatible = "simple-audio-card";
 
diff --git a/arch/arm64/boot/dts/rockchip/Makefile b/arch/arm64/boot/dts/rockchip/Makefile
index f1c9b13cea5c..84801892ee61 100644
--- a/arch/arm64/boot/dts/rockchip/Makefile
+++ b/arch/arm64/boot/dts/rockchip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-evb.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3328-rock64.dtb
 dtb-$(CONFIG_ARCH_ROCKCHIP) += rk3368-evb-act8846.dtb
diff --git a/arch/arm64/boot/dts/rockchip/rk3328.dtsi b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
index 6d615cb6e64d..41d61840fb99 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi
@@ -582,7 +582,7 @@
 	vop_mmu: iommu@ff373f00 {
 		compatible = "rockchip,iommu";
 		reg = <0x0 0xff373f00 0x0 0x100>;
-		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH 0>;
+		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "vop_mmu";
 		#iommu-cells = <0>;
 		status = "disabled";
diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index e0518b4bc6c2..1070c8264c13 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -113,8 +113,7 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKL>;
-			operating-points-v2 = <&cluster0_opp>;
+
 			#cooling-cells = <2>; /* min followed by max */
 		};
 
@@ -123,8 +122,6 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x1>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKL>;
-			operating-points-v2 = <&cluster0_opp>;
 		};
 
 		cpu_l2: cpu@2 {
@@ -132,8 +129,6 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x2>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKL>;
-			operating-points-v2 = <&cluster0_opp>;
 		};
 
 		cpu_l3: cpu@3 {
@@ -141,8 +136,6 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x3>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKL>;
-			operating-points-v2 = <&cluster0_opp>;
 		};
 
 		cpu_b0: cpu@100 {
@@ -150,8 +143,7 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKB>;
-			operating-points-v2 = <&cluster1_opp>;
+
 			#cooling-cells = <2>; /* min followed by max */
 		};
 
@@ -160,8 +152,6 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x101>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKB>;
-			operating-points-v2 = <&cluster1_opp>;
 		};
 
 		cpu_b2: cpu@102 {
@@ -169,8 +159,6 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x102>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKB>;
-			operating-points-v2 = <&cluster1_opp>;
 		};
 
 		cpu_b3: cpu@103 {
@@ -178,62 +166,6 @@
 			compatible = "arm,cortex-a53", "arm,armv8";
 			reg = <0x0 0x103>;
 			enable-method = "psci";
-			clocks = <&cru ARMCLKB>;
-			operating-points-v2 = <&cluster1_opp>;
-		};
-	};
-
-	cluster0_opp: opp-table0 {
-		compatible = "operating-points-v2";
-		opp-shared;
-
-		opp00 {
-			opp-hz = /bits/ 64 <312000000>;
-			opp-microvolt = <950000>;
-			clock-latency-ns = <40000>;
-		};
-		opp01 {
-			opp-hz = /bits/ 64 <408000000>;
-			opp-microvolt = <950000>;
-		};
-		opp02 {
-			opp-hz = /bits/ 64 <600000000>;
-			opp-microvolt = <950000>;
-		};
-		opp03 {
-			opp-hz = /bits/ 64 <816000000>;
-			opp-microvolt = <1025000>;
-		};
-		opp04 {
-			opp-hz = /bits/ 64 <1008000000>;
-			opp-microvolt = <1125000>;
-		};
-	};
-
-	cluster1_opp: opp-table1 {
-		compatible = "operating-points-v2";
-		opp-shared;
-
-		opp00 {
-			opp-hz = /bits/ 64 <312000000>;
-			opp-microvolt = <950000>;
-			clock-latency-ns = <40000>;
-		};
-		opp01 {
-			opp-hz = /bits/ 64 <408000000>;
-			opp-microvolt = <950000>;
-		};
-		opp02 {
-			opp-hz = /bits/ 64 <600000000>;
-			opp-microvolt = <950000>;
-		};
-		opp03 {
-			opp-hz = /bits/ 64 <816000000>;
-			opp-microvolt = <975000>;
-		};
-		opp04 {
-			opp-hz = /bits/ 64 <1008000000>;
-			opp-microvolt = <1050000>;
 		};
 	};
 
@@ -808,7 +740,7 @@
 	iep_mmu: iommu@ff900800 {
 		compatible = "rockchip,iommu";
 		reg = <0x0 0xff900800 0x0 0x100>;
-		interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH 0>;
+		interrupts = <GIC_SPI 17 IRQ_TYPE_LEVEL_HIGH>;
 		interrupt-names = "iep_mmu";
 		#iommu-cells = <0>;
 		status = "disabled";
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
index 7fd4bfcaa38e..fef82274a39d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-firefly.dts
@@ -371,10 +371,10 @@
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-min-microvolt = <1800000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-state-mem {
 					regulator-on-in-suspend;
-					regulator-suspend-microvolt = <3300000>;
+					regulator-suspend-microvolt = <3000000>;
 				};
 			};
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 53ff3d191a1d..910628d18add 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -325,12 +325,12 @@
 			vcc_sd: LDO_REG4 {
 				regulator-name = "vcc_sd";
 				regulator-min-microvolt = <1800000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-state-mem {
 					regulator-on-in-suspend;
-					regulator-suspend-microvolt = <3300000>;
+					regulator-suspend-microvolt = <3000000>;
 				};
 			};
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index 6c30bb02210d..0f873c897d0d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -315,10 +315,10 @@
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-min-microvolt = <1800000>;
-				regulator-max-microvolt = <3300000>;
+				regulator-max-microvolt = <3000000>;
 				regulator-state-mem {
 					regulator-on-in-suspend;
-					regulator-suspend-microvolt = <3300000>;
+					regulator-suspend-microvolt = <3000000>;
 				};
 			};
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
index d79e9b3265b9..ab7629c5b856 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi
@@ -1629,9 +1629,9 @@
 		compatible = "rockchip,rk3399-mipi-dsi", "snps,dw-mipi-dsi";
 		reg = <0x0 0xff960000 0x0 0x8000>;
 		interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH 0>;
-		clocks = <&cru SCLK_MIPIDPHY_REF>, <&cru PCLK_MIPI_DSI0>,
-			 <&cru SCLK_DPHY_TX0_CFG>;
-		clock-names = "ref", "pclk", "phy_cfg";
+		clocks = <&cru SCLK_DPHY_PLL>, <&cru PCLK_MIPI_DSI0>,
+			 <&cru SCLK_DPHY_TX0_CFG>, <&cru PCLK_VIO_GRF>;
+		clock-names = "ref", "pclk", "phy_cfg", "grf";
 		power-domains = <&power RK3399_PD_VIO>;
 		rockchip,grf = <&grf>;
 		status = "disabled";
diff --git a/arch/arm64/boot/dts/socionext/Makefile b/arch/arm64/boot/dts/socionext/Makefile
index 4bc091b365fd..72dbe8acd9fd 100644
--- a/arch/arm64/boot/dts/socionext/Makefile
+++ b/arch/arm64/boot/dts/socionext/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_UNIPHIER) += \
 	uniphier-ld11-global.dtb \
 	uniphier-ld11-ref.dtb \
diff --git a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
index ee4aff53a5f5..09c429cb6d61 100644
--- a/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
+++ b/arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi
@@ -299,7 +299,8 @@
 			interrupts = <0 243 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb0>;
-			clocks = <&mio_clk 7>, <&mio_clk 8>, <&mio_clk 12>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 8>,
+				 <&mio_clk 12>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 8>,
 				 <&mio_rst 12>;
 		};
@@ -311,7 +312,8 @@
 			interrupts = <0 244 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb1>;
-			clocks = <&mio_clk 7>, <&mio_clk 9>, <&mio_clk 13>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 9>,
+				 <&mio_clk 13>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 9>,
 				 <&mio_rst 13>;
 		};
@@ -323,7 +325,8 @@
 			interrupts = <0 245 4>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pinctrl_usb2>;
-			clocks = <&mio_clk 7>, <&mio_clk 10>, <&mio_clk 14>;
+			clocks = <&sys_clk 8>, <&mio_clk 7>, <&mio_clk 10>,
+				 <&mio_clk 14>;
 			resets = <&sys_rst 8>, <&mio_rst 7>, <&mio_rst 10>,
 				 <&mio_rst 14>;
 		};
diff --git a/arch/arm64/boot/dts/sprd/Makefile b/arch/arm64/boot/dts/sprd/Makefile
index f0535e6eaaaa..d7188be103c5 100644
--- a/arch/arm64/boot/dts/sprd/Makefile
+++ b/arch/arm64/boot/dts/sprd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_SPRD) += sc9836-openphone.dtb \
 			sp9860g-1h10.dtb
 
diff --git a/arch/arm64/crypto/Kconfig b/arch/arm64/crypto/Kconfig
index 7ca54a76f6b9..70c517aa4501 100644
--- a/arch/arm64/crypto/Kconfig
+++ b/arch/arm64/crypto/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 menuconfig ARM64_CRYPTO
 	bool "ARM64 Accelerated Cryptographic Algorithms"
diff --git a/arch/arm64/crypto/aes-ce-setkey.h b/arch/arm64/crypto/aes-ce-setkey.h
index f08a6471d034..fd9ecf07d88c 100644
--- a/arch/arm64/crypto/aes-ce-setkey.h
+++ b/arch/arm64/crypto/aes-ce-setkey.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 int ce_aes_setkey(struct crypto_tfm *tfm, const u8 *in_key,
 		  unsigned int key_len);
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 2326e39d5892..e63d0a8312de 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -16,6 +16,7 @@ generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
 generic-y += msi.h
 generic-y += preempt.h
+generic-y += qrwlock.h
 generic-y += rwsem.h
 generic-y += segment.h
 generic-y += serial.h
diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
index 59cca1d6ec54..32f465a80e4e 100644
--- a/arch/arm64/include/asm/acpi.h
+++ b/arch/arm64/include/asm/acpi.h
@@ -126,18 +126,6 @@ static inline const char *acpi_get_enable_method(int cpu)
  */
 #define acpi_disable_cmcff 1
 pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr);
-
-/*
- * Despite its name, this function must still broadcast the TLB
- * invalidation in order to ensure other CPUs don't end up with junk
- * entries as a result of speculation. Unusually, its also called in
- * IRQ context (ghes_iounmap_irq) so if we ever need to use IPIs for
- * TLB broadcasting, then we're in trouble here.
- */
-static inline void arch_apei_flush_tlb_one(unsigned long addr)
-{
-	flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
-}
 #endif /* CONFIG_ACPI_APEI */
 
 #ifdef CONFIG_ACPI_NUMA
diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h
index 6e1cb8c5af4d..4a85c6952a22 100644
--- a/arch/arm64/include/asm/alternative.h
+++ b/arch/arm64/include/asm/alternative.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ALTERNATIVE_H
 #define __ASM_ALTERNATIVE_H
 
diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h
index b7e3f74822da..9becba9ab392 100644
--- a/arch/arm64/include/asm/arch_gicv3.h
+++ b/arch/arm64/include/asm/arch_gicv3.h
@@ -87,6 +87,11 @@ static inline void gic_write_ctlr(u32 val)
 	isb();
 }
 
+static inline u32 gic_read_ctlr(void)
+{
+	return read_sysreg_s(SYS_ICC_CTLR_EL1);
+}
+
 static inline void gic_write_grpen1(u32 val)
 {
 	write_sysreg_s(val, SYS_ICC_IGRPEN1_EL1);
diff --git a/arch/arm64/include/asm/asm-uaccess.h b/arch/arm64/include/asm/asm-uaccess.h
index ecd9788cd298..b3da6c886835 100644
--- a/arch/arm64/include/asm/asm-uaccess.h
+++ b/arch/arm64/include/asm/asm-uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ASM_UACCESS_H
 #define __ASM_ASM_UACCESS_H
 
diff --git a/arch/arm64/include/asm/bitrev.h b/arch/arm64/include/asm/bitrev.h
index a5a0c3660137..6faf9fba8c65 100644
--- a/arch/arm64/include/asm/bitrev.h
+++ b/arch/arm64/include/asm/bitrev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_BITREV_H
 #define __ASM_BITREV_H
 static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
diff --git a/arch/arm64/include/asm/boot.h b/arch/arm64/include/asm/boot.h
index ebf2481889c3..355e552a9175 100644
--- a/arch/arm64/include/asm/boot.h
+++ b/arch/arm64/include/asm/boot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __ASM_BOOT_H
 #define __ASM_BOOT_H
diff --git a/arch/arm64/include/asm/clocksource.h b/arch/arm64/include/asm/clocksource.h
index 0b350a7e26f3..0ece64a26c8c 100644
--- a/arch/arm64/include/asm/clocksource.h
+++ b/arch/arm64/include/asm/clocksource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CLOCKSOURCE_H
 #define _ASM_CLOCKSOURCE_H
 
diff --git a/arch/arm64/include/asm/cpuidle.h b/arch/arm64/include/asm/cpuidle.h
index 0f74f05d662a..3c5ddb429ea2 100644
--- a/arch/arm64/include/asm/cpuidle.h
+++ b/arch/arm64/include/asm/cpuidle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPUIDLE_H
 #define __ASM_CPUIDLE_H
 
diff --git a/arch/arm64/include/asm/current.h b/arch/arm64/include/asm/current.h
index f6580d4afb0e..54ceae0874c7 100644
--- a/arch/arm64/include/asm/current.h
+++ b/arch/arm64/include/asm/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CURRENT_H
 #define __ASM_CURRENT_H
 
diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h
index b93904b16fc2..650344d01124 100644
--- a/arch/arm64/include/asm/efi.h
+++ b/arch/arm64/include/asm/efi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EFI_H
 #define _ASM_EFI_H
 
diff --git a/arch/arm64/include/asm/extable.h b/arch/arm64/include/asm/extable.h
index 42f50f15a44c..56a4f68b262e 100644
--- a/arch/arm64/include/asm/extable.h
+++ b/arch/arm64/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_EXTABLE_H
 #define __ASM_EXTABLE_H
 
diff --git a/arch/arm64/include/asm/fixmap.h b/arch/arm64/include/asm/fixmap.h
index caf86be815ba..4052ec39e8db 100644
--- a/arch/arm64/include/asm/fixmap.h
+++ b/arch/arm64/include/asm/fixmap.h
@@ -51,6 +51,13 @@ enum fixed_addresses {
 
 	FIX_EARLYCON_MEM_BASE,
 	FIX_TEXT_POKE0,
+
+#ifdef CONFIG_ACPI_APEI_GHES
+	/* Used for GHES mapping from assorted contexts */
+	FIX_APEI_GHES_IRQ,
+	FIX_APEI_GHES_NMI,
+#endif /* CONFIG_ACPI_APEI_GHES */
+
 	__end_of_permanent_fixed_addresses,
 
 	/*
diff --git a/arch/arm64/include/asm/hypervisor.h b/arch/arm64/include/asm/hypervisor.h
index d2c79049ff11..f9cc1d021791 100644
--- a/arch/arm64/include/asm/hypervisor.h
+++ b/arch/arm64/include/asm/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM64_HYPERVISOR_H
 #define _ASM_ARM64_HYPERVISOR_H
 
diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index 5e6f77239064..a0fee6985e6a 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IRQ_H
 #define __ASM_IRQ_H
 
diff --git a/arch/arm64/include/asm/irq_work.h b/arch/arm64/include/asm/irq_work.h
index 8e24ef3f7c82..8a1ef1907760 100644
--- a/arch/arm64/include/asm/irq_work.h
+++ b/arch/arm64/include/asm/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IRQ_WORK_H
 #define __ASM_IRQ_WORK_H
 
diff --git a/arch/arm64/include/asm/kasan.h b/arch/arm64/include/asm/kasan.h
index 71ad0f93eb71..e266f80e45b7 100644
--- a/arch/arm64/include/asm/kasan.h
+++ b/arch/arm64/include/asm/kasan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_KASAN_H
 #define __ASM_KASAN_H
 
diff --git a/arch/arm64/include/asm/linkage.h b/arch/arm64/include/asm/linkage.h
index 636c1bced7d4..1b266292f0be 100644
--- a/arch/arm64/include/asm/linkage.h
+++ b/arch/arm64/include/asm/linkage.h
@@ -1,7 +1,7 @@
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
-#define __ALIGN		.align 4
-#define __ALIGN_STR	".align 4"
+#define __ALIGN		.align 2
+#define __ALIGN_STR	".align 2"
 
 #endif
diff --git a/arch/arm64/include/asm/lse.h b/arch/arm64/include/asm/lse.h
index 606b20910a5c..eec95768eaad 100644
--- a/arch/arm64/include/asm/lse.h
+++ b/arch/arm64/include/asm/lse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LSE_H
 #define __ASM_LSE_H
 
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 3585a5e26151..f7c4d2146aed 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -95,16 +95,19 @@
 #define KERNEL_END        _end
 
 /*
- * The size of the KASAN shadow region. This should be 1/8th of the
- * size of the entire kernel virtual address space.
+ * KASAN requires 1/8th of the kernel virtual address space for the shadow
+ * region. KASAN can bloat the stack significantly, so double the (minimum)
+ * stack size when KASAN is in use.
  */
 #ifdef CONFIG_KASAN
 #define KASAN_SHADOW_SIZE	(UL(1) << (VA_BITS - 3))
+#define KASAN_THREAD_SHIFT	1
 #else
 #define KASAN_SHADOW_SIZE	(0)
+#define KASAN_THREAD_SHIFT	0
 #endif
 
-#define MIN_THREAD_SHIFT	14
+#define MIN_THREAD_SHIFT	(14 + KASAN_THREAD_SHIFT)
 
 /*
  * VMAP'd stacks are allocated at page granularity, so we must ensure that such
diff --git a/arch/arm64/include/asm/mmzone.h b/arch/arm64/include/asm/mmzone.h
index a0de9e6ba73f..fa17e01d9ab2 100644
--- a/arch/arm64/include/asm/mmzone.h
+++ b/arch/arm64/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MMZONE_H
 #define __ASM_MMZONE_H
 
diff --git a/arch/arm64/include/asm/numa.h b/arch/arm64/include/asm/numa.h
index ef7b23863a7c..01bc46d5b43a 100644
--- a/arch/arm64/include/asm/numa.h
+++ b/arch/arm64/include/asm/numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_NUMA_H
 #define __ASM_NUMA_H
 
diff --git a/arch/arm64/include/asm/paravirt.h b/arch/arm64/include/asm/paravirt.h
index fd5f42886251..bb5dcea42003 100644
--- a/arch/arm64/include/asm/paravirt.h
+++ b/arch/arm64/include/asm/paravirt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM64_PARAVIRT_H
 #define _ASM_ARM64_PARAVIRT_H
 
diff --git a/arch/arm64/include/asm/pci.h b/arch/arm64/include/asm/pci.h
index 1fc19744ffe9..8747f7c5e0e7 100644
--- a/arch/arm64/include/asm/pci.h
+++ b/arch/arm64/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PCI_H
 #define __ASM_PCI_H
 #ifdef __KERNEL__
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index bc4e92337d16..b46e54c2399b 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -401,7 +401,7 @@ static inline phys_addr_t pmd_page_paddr(pmd_t pmd)
 /* Find an entry in the third-level page table. */
 #define pte_index(addr)		(((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1))
 
-#define pte_offset_phys(dir,addr)	(pmd_page_paddr(*(dir)) + pte_index(addr) * sizeof(pte_t))
+#define pte_offset_phys(dir,addr)	(pmd_page_paddr(READ_ONCE(*(dir))) + pte_index(addr) * sizeof(pte_t))
 #define pte_offset_kernel(dir,addr)	((pte_t *)__va(pte_offset_phys((dir), (addr))))
 
 #define pte_offset_map(dir,addr)	pte_offset_kernel((dir), (addr))
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index 95ad7102b63c..fdb827c7832f 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -27,8 +27,6 @@
  * instructions.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned int tmp;
@@ -139,176 +137,7 @@ static inline int arch_spin_is_contended(arch_spinlock_t *lock)
 }
 #define arch_spin_is_contended	arch_spin_is_contended
 
-/*
- * Write lock implementation.
- *
- * Write locks set bit 31. Unlocking, is done by writing 0 since the lock is
- * exclusively held.
- *
- * The memory barriers are implicit with the load-acquire and store-release
- * instructions.
- */
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-
-	asm volatile(ARM64_LSE_ATOMIC_INSN(
-	/* LL/SC */
-	"	sevl\n"
-	"1:	wfe\n"
-	"2:	ldaxr	%w0, %1\n"
-	"	cbnz	%w0, 1b\n"
-	"	stxr	%w0, %w2, %1\n"
-	"	cbnz	%w0, 2b\n"
-	__nops(1),
-	/* LSE atomics */
-	"1:	mov	%w0, wzr\n"
-	"2:	casa	%w0, %w2, %1\n"
-	"	cbz	%w0, 3f\n"
-	"	ldxr	%w0, %1\n"
-	"	cbz	%w0, 2b\n"
-	"	wfe\n"
-	"	b	1b\n"
-	"3:")
-	: "=&r" (tmp), "+Q" (rw->lock)
-	: "r" (0x80000000)
-	: "memory");
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *rw)
-{
-	unsigned int tmp;
-
-	asm volatile(ARM64_LSE_ATOMIC_INSN(
-	/* LL/SC */
-	"1:	ldaxr	%w0, %1\n"
-	"	cbnz	%w0, 2f\n"
-	"	stxr	%w0, %w2, %1\n"
-	"	cbnz	%w0, 1b\n"
-	"2:",
-	/* LSE atomics */
-	"	mov	%w0, wzr\n"
-	"	casa	%w0, %w2, %1\n"
-	__nops(2))
-	: "=&r" (tmp), "+Q" (rw->lock)
-	: "r" (0x80000000)
-	: "memory");
-
-	return !tmp;
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
-	asm volatile(ARM64_LSE_ATOMIC_INSN(
-	"	stlr	wzr, %0",
-	"	swpl	wzr, wzr, %0")
-	: "=Q" (rw->lock) :: "memory");
-}
-
-/* write_can_lock - would write_trylock() succeed? */
-#define arch_write_can_lock(x)		((x)->lock == 0)
-
-/*
- * Read lock implementation.
- *
- * It exclusively loads the lock value, increments it and stores the new value
- * back if positive and the CPU still exclusively owns the location. If the
- * value is negative, the lock is already held.
- *
- * During unlocking there may be multiple active read locks but no write lock.
- *
- * The memory barriers are implicit with the load-acquire and store-release
- * instructions.
- *
- * Note that in UNDEFINED cases, such as unlocking a lock twice, the LL/SC
- * and LSE implementations may exhibit different behaviour (although this
- * will have no effect on lockdep).
- */
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
-	unsigned int tmp, tmp2;
-
-	asm volatile(
-	"	sevl\n"
-	ARM64_LSE_ATOMIC_INSN(
-	/* LL/SC */
-	"1:	wfe\n"
-	"2:	ldaxr	%w0, %2\n"
-	"	add	%w0, %w0, #1\n"
-	"	tbnz	%w0, #31, 1b\n"
-	"	stxr	%w1, %w0, %2\n"
-	"	cbnz	%w1, 2b\n"
-	__nops(1),
-	/* LSE atomics */
-	"1:	wfe\n"
-	"2:	ldxr	%w0, %2\n"
-	"	adds	%w1, %w0, #1\n"
-	"	tbnz	%w1, #31, 1b\n"
-	"	casa	%w0, %w1, %2\n"
-	"	sbc	%w0, %w1, %w0\n"
-	"	cbnz	%w0, 2b")
-	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)
-	:
-	: "cc", "memory");
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
-	unsigned int tmp, tmp2;
-
-	asm volatile(ARM64_LSE_ATOMIC_INSN(
-	/* LL/SC */
-	"1:	ldxr	%w0, %2\n"
-	"	sub	%w0, %w0, #1\n"
-	"	stlxr	%w1, %w0, %2\n"
-	"	cbnz	%w1, 1b",
-	/* LSE atomics */
-	"	movn	%w0, #0\n"
-	"	staddl	%w0, %2\n"
-	__nops(2))
-	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)
-	:
-	: "memory");
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
-	unsigned int tmp, tmp2;
-
-	asm volatile(ARM64_LSE_ATOMIC_INSN(
-	/* LL/SC */
-	"	mov	%w1, #1\n"
-	"1:	ldaxr	%w0, %2\n"
-	"	add	%w0, %w0, #1\n"
-	"	tbnz	%w0, #31, 2f\n"
-	"	stxr	%w1, %w0, %2\n"
-	"	cbnz	%w1, 1b\n"
-	"2:",
-	/* LSE atomics */
-	"	ldr	%w0, %2\n"
-	"	adds	%w1, %w0, #1\n"
-	"	tbnz	%w1, #31, 1f\n"
-	"	casa	%w0, %w1, %2\n"
-	"	sbc	%w1, %w1, %w0\n"
-	__nops(1)
-	"1:")
-	: "=&r" (tmp), "=&r" (tmp2), "+Q" (rw->lock)
-	:
-	: "cc", "memory");
-
-	return !tmp2;
-}
-
-/* read_can_lock - would read_trylock() succeed? */
-#define arch_read_can_lock(x)		((x)->lock < 0x80000000)
-
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
+#include <asm/qrwlock.h>
 
 /* See include/linux/spinlock.h */
 #define smp_mb__after_spinlock()	smp_mb()
diff --git a/arch/arm64/include/asm/spinlock_types.h b/arch/arm64/include/asm/spinlock_types.h
index 55be59a35e3f..6b856012c51b 100644
--- a/arch/arm64/include/asm/spinlock_types.h
+++ b/arch/arm64/include/asm/spinlock_types.h
@@ -36,10 +36,6 @@ typedef struct {
 
 #define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 , 0 }
 
-typedef struct {
-	volatile unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
+#include <asm-generic/qrwlock_types.h>
 
 #endif
diff --git a/arch/arm64/include/asm/stack_pointer.h b/arch/arm64/include/asm/stack_pointer.h
index ffcdf742cddf..8e57c96ad45e 100644
--- a/arch/arm64/include/asm/stack_pointer.h
+++ b/arch/arm64/include/asm/stack_pointer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_STACK_POINTER_H
 #define __ASM_STACK_POINTER_H
 
diff --git a/arch/arm64/include/asm/stackprotector.h b/arch/arm64/include/asm/stackprotector.h
index b86a0865ddf1..58d15be11c4d 100644
--- a/arch/arm64/include/asm/stackprotector.h
+++ b/arch/arm64/include/asm/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * GCC stack protector support.
  *
diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h
index de5600f40adf..8939c87c4dce 100644
--- a/arch/arm64/include/asm/suspend.h
+++ b/arch/arm64/include/asm/suspend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SUSPEND_H
 #define __ASM_SUSPEND_H
 
diff --git a/arch/arm64/include/asm/sync_bitops.h b/arch/arm64/include/asm/sync_bitops.h
index 8da0bf4f7659..eee31a9f72a5 100644
--- a/arch/arm64/include/asm/sync_bitops.h
+++ b/arch/arm64/include/asm/sync_bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SYNC_BITOPS_H__
 #define __ASM_SYNC_BITOPS_H__
 
diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h
index 8b57339823e9..c4f2d50491eb 100644
--- a/arch/arm64/include/asm/topology.h
+++ b/arch/arm64/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TOPOLOGY_H
 #define __ASM_TOPOLOGY_H
 
@@ -32,6 +33,14 @@ int pcibus_to_node(struct pci_bus *bus);
 
 #endif /* CONFIG_NUMA */
 
+#include <linux/arch_topology.h>
+
+/* Replace task scheduler's default frequency-invariant accounting */
+#define arch_scale_freq_capacity topology_get_freq_scale
+
+/* Replace task scheduler's default cpu-invariant accounting */
+#define arch_scale_cpu_capacity topology_get_cpu_scale
+
 #include <asm-generic/topology.h>
 
 #endif /* _ASM_ARM_TOPOLOGY_H */
diff --git a/arch/arm64/include/asm/xen/events.h b/arch/arm64/include/asm/xen/events.h
index 4318866d053c..4e22b7a8c038 100644
--- a/arch/arm64/include/asm/xen/events.h
+++ b/arch/arm64/include/asm/xen/events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM64_XEN_EVENTS_H
 #define _ASM_ARM64_XEN_EVENTS_H
 
diff --git a/arch/arm64/include/asm/xen/xen-ops.h b/arch/arm64/include/asm/xen/xen-ops.h
index ec154e719b11..e6e784051932 100644
--- a/arch/arm64/include/asm/xen/xen-ops.h
+++ b/arch/arm64/include/asm/xen/xen-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_XEN_OPS_H
 #define _ASM_XEN_OPS_H
 
diff --git a/arch/arm64/include/uapi/asm/Kbuild b/arch/arm64/include/uapi/asm/Kbuild
index fc28bd95c6d3..198afbf0688f 100644
--- a/arch/arm64/include/uapi/asm/Kbuild
+++ b/arch/arm64/include/uapi/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # UAPI Header export list
 include include/uapi/asm-generic/Kbuild.asm
 
diff --git a/arch/arm64/include/uapi/asm/auxvec.h b/arch/arm64/include/uapi/asm/auxvec.h
index 4cf0c17787a8..ec0a86d484e1 100644
--- a/arch/arm64/include/uapi/asm/auxvec.h
+++ b/arch/arm64/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/bitsperlong.h b/arch/arm64/include/uapi/asm/bitsperlong.h
index fce9c2924fa3..485d60bee26c 100644
--- a/arch/arm64/include/uapi/asm/bitsperlong.h
+++ b/arch/arm64/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/byteorder.h b/arch/arm64/include/uapi/asm/byteorder.h
index dc19e9537f0d..ca9cfdab33fc 100644
--- a/arch/arm64/include/uapi/asm/byteorder.h
+++ b/arch/arm64/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/fcntl.h b/arch/arm64/include/uapi/asm/fcntl.h
index cd2e630c235e..f8db34f2622d 100644
--- a/arch/arm64/include/uapi/asm/fcntl.h
+++ b/arch/arm64/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index 4b9344cba83a..b3fdeee739ea 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index 9f3ca24bbcc6..51149ec75fe4 100644
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012,2013 - ARM Ltd
  * Author: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/arch/arm64/include/uapi/asm/param.h b/arch/arm64/include/uapi/asm/param.h
index 8e3a281d448a..b115c5557781 100644
--- a/arch/arm64/include/uapi/asm/param.h
+++ b/arch/arm64/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/perf_regs.h b/arch/arm64/include/uapi/asm/perf_regs.h
index 172b8317ee49..d54daafa89e3 100644
--- a/arch/arm64/include/uapi/asm/perf_regs.h
+++ b/arch/arm64/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ARM64_PERF_REGS_H
 #define _ASM_ARM64_PERF_REGS_H
 
diff --git a/arch/arm64/include/uapi/asm/posix_types.h b/arch/arm64/include/uapi/asm/posix_types.h
index 7985ff60ca3f..b1c2e0df92dc 100644
--- a/arch/arm64/include/uapi/asm/posix_types.h
+++ b/arch/arm64/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_POSIX_TYPES_H
 #define __ASM_POSIX_TYPES_H
 
diff --git a/arch/arm64/include/uapi/asm/ptrace.h b/arch/arm64/include/uapi/asm/ptrace.h
index d1ff83dfe5de..67d4c33974e8 100644
--- a/arch/arm64/include/uapi/asm/ptrace.h
+++ b/arch/arm64/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Based on arch/arm/include/asm/ptrace.h
  *
diff --git a/arch/arm64/include/uapi/asm/setup.h b/arch/arm64/include/uapi/asm/setup.h
index 9cf2e46fbbdf..5d703888f351 100644
--- a/arch/arm64/include/uapi/asm/setup.h
+++ b/arch/arm64/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Based on arch/arm/include/asm/setup.h
  *
diff --git a/arch/arm64/include/uapi/asm/sigcontext.h b/arch/arm64/include/uapi/asm/sigcontext.h
index f0a76b9fcd6e..f6cc3061b1ae 100644
--- a/arch/arm64/include/uapi/asm/sigcontext.h
+++ b/arch/arm64/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/siginfo.h b/arch/arm64/include/uapi/asm/siginfo.h
index 5a74a0853db0..574d12f86039 100644
--- a/arch/arm64/include/uapi/asm/siginfo.h
+++ b/arch/arm64/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/signal.h b/arch/arm64/include/uapi/asm/signal.h
index 991bf5db2ca1..bdf0cfb046c9 100644
--- a/arch/arm64/include/uapi/asm/signal.h
+++ b/arch/arm64/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/stat.h b/arch/arm64/include/uapi/asm/stat.h
index eeb702e5074a..313325fa22fa 100644
--- a/arch/arm64/include/uapi/asm/stat.h
+++ b/arch/arm64/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/statfs.h b/arch/arm64/include/uapi/asm/statfs.h
index 6f6219050978..615357b6ba89 100644
--- a/arch/arm64/include/uapi/asm/statfs.h
+++ b/arch/arm64/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/ucontext.h b/arch/arm64/include/uapi/asm/ucontext.h
index 791de8e89e35..ee02721a704d 100644
--- a/arch/arm64/include/uapi/asm/ucontext.h
+++ b/arch/arm64/include/uapi/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/include/uapi/asm/unistd.h b/arch/arm64/include/uapi/asm/unistd.h
index 043d17a21342..5072cbd15c82 100644
--- a/arch/arm64/include/uapi/asm/unistd.h
+++ b/arch/arm64/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index f2b4e816b6de..0029e13adb59 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
index f01fab637dab..d190a7b231bf 100644
--- a/arch/arm64/kernel/acpi_numa.c
+++ b/arch/arm64/kernel/acpi_numa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ACPI 5.1 based NUMA setup for ARM64
  * Lots of code was borrowed from arch/x86/mm/srat.c
diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c
index f0e6d717885b..d06fbe4cd38d 100644
--- a/arch/arm64/kernel/armv8_deprecated.c
+++ b/arch/arm64/kernel/armv8_deprecated.c
@@ -649,4 +649,4 @@ static int __init armv8_deprecated_init(void)
 	return 0;
 }
 
-late_initcall(armv8_deprecated_init);
+core_initcall(armv8_deprecated_init);
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c
index cd52d365d1f0..21e2c95d24e7 100644
--- a/arch/arm64/kernel/cpufeature.c
+++ b/arch/arm64/kernel/cpufeature.c
@@ -1307,4 +1307,4 @@ static int __init enable_mrs_emulation(void)
 	return 0;
 }
 
-late_initcall(enable_mrs_emulation);
+core_initcall(enable_mrs_emulation);
diff --git a/arch/arm64/kernel/fpsimd.c b/arch/arm64/kernel/fpsimd.c
index 3a68cf38a6b3..5d547deb6996 100644
--- a/arch/arm64/kernel/fpsimd.c
+++ b/arch/arm64/kernel/fpsimd.c
@@ -321,6 +321,8 @@ void kernel_neon_end(void)
 }
 EXPORT_SYMBOL(kernel_neon_end);
 
+#ifdef CONFIG_EFI
+
 static DEFINE_PER_CPU(struct fpsimd_state, efi_fpsimd_state);
 static DEFINE_PER_CPU(bool, efi_fpsimd_state_used);
 
@@ -370,6 +372,8 @@ void __efi_fpsimd_end(void)
 		kernel_neon_end();
 }
 
+#endif /* CONFIG_EFI */
+
 #endif /* CONFIG_KERNEL_MODE_NEON */
 
 #ifdef CONFIG_CPU_PM
@@ -440,4 +444,4 @@ static int __init fpsimd_init(void)
 
 	return 0;
 }
-late_initcall(fpsimd_init);
+core_initcall(fpsimd_init);
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 7434ec0c7a27..0b243ecaf7ac 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -384,6 +384,7 @@ ENTRY(kimage_vaddr)
  * booted in EL1 or EL2 respectively.
  */
 ENTRY(el2_setup)
+	msr	SPsel, #1			// We want to use SP_EL{1,2}
 	mrs	x0, CurrentEL
 	cmp	x0, #CurrentEL_EL2
 	b.eq	1f
diff --git a/arch/arm64/kernel/perf_regs.c b/arch/arm64/kernel/perf_regs.c
index bd1b74c2436f..1d091d048d04 100644
--- a/arch/arm64/kernel/perf_regs.c
+++ b/arch/arm64/kernel/perf_regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/perf_event.h>
diff --git a/arch/arm64/kernel/probes/Makefile b/arch/arm64/kernel/probes/Makefile
index 89b6df613dde..8e4be92e25b1 100644
--- a/arch/arm64/kernel/probes/Makefile
+++ b/arch/arm64/kernel/probes/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_KPROBES)		+= kprobes.o decode-insn.o	\
 				   kprobes_trampoline.o		\
 				   simulate-insn.o
diff --git a/arch/arm64/kernel/probes/kprobes_trampoline.S b/arch/arm64/kernel/probes/kprobes_trampoline.S
index 5d6e7f14638c..45dce03aaeaf 100644
--- a/arch/arm64/kernel/probes/kprobes_trampoline.S
+++ b/arch/arm64/kernel/probes/kprobes_trampoline.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * trampoline entry and return code for kretprobes.
  */
diff --git a/arch/arm64/kernel/signal.c b/arch/arm64/kernel/signal.c
index c45214f8fb54..0bdc96c61bc0 100644
--- a/arch/arm64/kernel/signal.c
+++ b/arch/arm64/kernel/signal.c
@@ -751,10 +751,10 @@ asmlinkage void do_notify_resume(struct pt_regs *regs,
 	 */
 	trace_hardirqs_off();
 
-	/* Check valid user FS if needed */
-	addr_limit_user_check();
-
 	do {
+		/* Check valid user FS if needed */
+		addr_limit_user_check();
+
 		if (thread_flags & _TIF_NEED_RESCHED) {
 			schedule();
 		} else {
diff --git a/arch/arm64/kernel/sleep.S b/arch/arm64/kernel/sleep.S
index df67652e46f0..10dd16d7902d 100644
--- a/arch/arm64/kernel/sleep.S
+++ b/arch/arm64/kernel/sleep.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/errno.h>
 #include <linux/linkage.h>
 #include <asm/asm-offsets.h>
diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c
index 3144584617e7..76809ccd309c 100644
--- a/arch/arm64/kernel/stacktrace.c
+++ b/arch/arm64/kernel/stacktrace.c
@@ -140,7 +140,8 @@ void save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
 		trace->entries[trace->nr_entries++] = ULONG_MAX;
 }
 
-void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+static noinline void __save_stack_trace(struct task_struct *tsk,
+	struct stack_trace *trace, unsigned int nosched)
 {
 	struct stack_trace_data data;
 	struct stackframe frame;
@@ -150,15 +151,16 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 
 	data.trace = trace;
 	data.skip = trace->skip;
+	data.no_sched_functions = nosched;
 
 	if (tsk != current) {
-		data.no_sched_functions = 1;
 		frame.fp = thread_saved_fp(tsk);
 		frame.pc = thread_saved_pc(tsk);
 	} else {
-		data.no_sched_functions = 0;
+		/* We don't want this function nor the caller */
+		data.skip += 2;
 		frame.fp = (unsigned long)__builtin_frame_address(0);
-		frame.pc = (unsigned long)save_stack_trace_tsk;
+		frame.pc = (unsigned long)__save_stack_trace;
 	}
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 	frame.graph = tsk->curr_ret_stack;
@@ -172,9 +174,15 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 }
 EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
 
+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+	__save_stack_trace(tsk, trace, 1);
+}
+
 void save_stack_trace(struct stack_trace *trace)
 {
-	save_stack_trace_tsk(current, trace);
+	__save_stack_trace(current, trace, 0);
 }
+
 EXPORT_SYMBOL_GPL(save_stack_trace);
 #endif
diff --git a/arch/arm64/kernel/suspend.c b/arch/arm64/kernel/suspend.c
index 1e3be9064cfa..77cd655e6eb7 100644
--- a/arch/arm64/kernel/suspend.c
+++ b/arch/arm64/kernel/suspend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ftrace.h>
 #include <linux/percpu.h>
 #include <linux/slab.h>
diff --git a/arch/arm64/kernel/trace-events-emulation.h b/arch/arm64/kernel/trace-events-emulation.h
index ae1dd598ea65..6c40f58b844a 100644
--- a/arch/arm64/kernel/trace-events-emulation.h
+++ b/arch/arm64/kernel/trace-events-emulation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM emulation
 
diff --git a/arch/arm64/kernel/traps.c b/arch/arm64/kernel/traps.c
index 5ea4b85aee0e..8383af15a759 100644
--- a/arch/arm64/kernel/traps.c
+++ b/arch/arm64/kernel/traps.c
@@ -118,7 +118,7 @@ static void __dump_instr(const char *lvl, struct pt_regs *regs)
 	for (i = -4; i < 1; i++) {
 		unsigned int val, bad;
 
-		bad = __get_user(val, &((u32 *)addr)[i]);
+		bad = get_user(val, &((u32 *)addr)[i]);
 
 		if (!bad)
 			p += sprintf(p, i == 0 ? "(%08x) " : "%08x ", val);
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile
index 62c84f7cb01b..b215c712d897 100644
--- a/arch/arm64/kernel/vdso/Makefile
+++ b/arch/arm64/kernel/vdso/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Building a vDSO image for AArch64.
 #
diff --git a/arch/arm64/kernel/vdso/gen_vdso_offsets.sh b/arch/arm64/kernel/vdso/gen_vdso_offsets.sh
index 01924ff071ad..0664acaf61ff 100755
--- a/arch/arm64/kernel/vdso/gen_vdso_offsets.sh
+++ b/arch/arm64/kernel/vdso/gen_vdso_offsets.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 #
 # Match symbols in the DSO that look like VDSO_*; produce a header file
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index fe56c268a7d9..7da3e5c366a0 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ld script to make ARM Linux kernel
  * taken from the i386 version by Russell King
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 52cb7ad9b2fd..13f81f971390 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
diff --git a/arch/arm64/kvm/Makefile b/arch/arm64/kvm/Makefile
index 5d9810086c25..861acbbac385 100644
--- a/arch/arm64/kvm/Makefile
+++ b/arch/arm64/kvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Kernel-based Virtual Machine module
 #
diff --git a/arch/arm64/kvm/hyp/Makefile b/arch/arm64/kvm/hyp/Makefile
index 14c4e3b14bcb..f04400d494b7 100644
--- a/arch/arm64/kvm/hyp/Makefile
+++ b/arch/arm64/kvm/hyp/Makefile
@@ -1,8 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Kernel-based Virtual Machine module, HYP part
 #
 
-ccflags-y += -fno-stack-protector
+ccflags-y += -fno-stack-protector -DDISABLE_BRANCH_PROFILING
 
 KVM=../../../../virt/kvm
 
diff --git a/arch/arm64/kvm/inject_fault.c b/arch/arm64/kvm/inject_fault.c
index da6a8cfa54a0..3556715a774e 100644
--- a/arch/arm64/kvm/inject_fault.c
+++ b/arch/arm64/kvm/inject_fault.c
@@ -33,12 +33,26 @@
 #define LOWER_EL_AArch64_VECTOR		0x400
 #define LOWER_EL_AArch32_VECTOR		0x600
 
+/*
+ * Table taken from ARMv8 ARM DDI0487B-B, table G1-10.
+ */
+static const u8 return_offsets[8][2] = {
+	[0] = { 0, 0 },		/* Reset, unused */
+	[1] = { 4, 2 },		/* Undefined */
+	[2] = { 0, 0 },		/* SVC, unused */
+	[3] = { 4, 4 },		/* Prefetch abort */
+	[4] = { 8, 8 },		/* Data abort */
+	[5] = { 0, 0 },		/* HVC, unused */
+	[6] = { 4, 4 },		/* IRQ, unused */
+	[7] = { 4, 4 },		/* FIQ, unused */
+};
+
 static void prepare_fault32(struct kvm_vcpu *vcpu, u32 mode, u32 vect_offset)
 {
 	unsigned long cpsr;
 	unsigned long new_spsr_value = *vcpu_cpsr(vcpu);
 	bool is_thumb = (new_spsr_value & COMPAT_PSR_T_BIT);
-	u32 return_offset = (is_thumb) ? 4 : 0;
+	u32 return_offset = return_offsets[vect_offset >> 2][is_thumb];
 	u32 sctlr = vcpu_cp15(vcpu, c1_SCTLR);
 
 	cpsr = mode | COMPAT_PSR_I_BIT;
diff --git a/arch/arm64/kvm/trace.h b/arch/arm64/kvm/trace.h
index 5188c7007169..3b82fb1ddd09 100644
--- a/arch/arm64/kvm/trace.h
+++ b/arch/arm64/kvm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_ARM64_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_ARM64_KVM_H
 
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile
index a0abc142c92b..9a8cb96555d6 100644
--- a/arch/arm64/lib/Makefile
+++ b/arch/arm64/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 lib-y		:= bitops.o clear_user.o delay.o copy_from_user.o	\
 		   copy_to_user.o copy_in_user.o copy_page.o		\
 		   clear_page.o memchr.o memcpy.o memmove.o memset.o	\
diff --git a/arch/arm64/mm/Makefile b/arch/arm64/mm/Makefile
index 9b0ba191e48e..849c1df3d214 100644
--- a/arch/arm64/mm/Makefile
+++ b/arch/arm64/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				:= dma-mapping.o extable.o fault.o init.o \
 				   cache.o copypage.o flush.o \
 				   ioremap.o mmap.o pgd.o mmu.o \
diff --git a/arch/arm64/mm/extable.c b/arch/arm64/mm/extable.c
index c9f118cd812b..81e694af5f8c 100644
--- a/arch/arm64/mm/extable.c
+++ b/arch/arm64/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Based on arch/arm/mm/extable.c
  */
diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 89993c4be1be..b64958b23a7f 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -97,7 +97,7 @@ static void data_abort_decode(unsigned int esr)
 			 (esr & ESR_ELx_SF) >> ESR_ELx_SF_SHIFT,
 			 (esr & ESR_ELx_AR) >> ESR_ELx_AR_SHIFT);
 	} else {
-		pr_alert("  ISV = 0, ISS = 0x%08lu\n", esr & ESR_ELx_ISS_MASK);
+		pr_alert("  ISV = 0, ISS = 0x%08lx\n", esr & ESR_ELx_ISS_MASK);
 	}
 
 	pr_alert("  CM = %lu, WnR = %lu\n",
@@ -651,7 +651,7 @@ static const struct fault_info fault_info[] = {
 	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 0 translation fault"	},
 	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 1 translation fault"	},
 	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 2 translation fault"	},
-	{ do_page_fault,	SIGSEGV, SEGV_MAPERR,	"level 3 translation fault"	},
+	{ do_translation_fault,	SIGSEGV, SEGV_MAPERR,	"level 3 translation fault"	},
 	{ do_bad,		SIGBUS,  0,		"unknown 8"			},
 	{ do_page_fault,	SIGSEGV, SEGV_ACCERR,	"level 1 access flag fault"	},
 	{ do_page_fault,	SIGSEGV, SEGV_ACCERR,	"level 2 access flag fault"	},
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index f1eb15e0e864..267d2b79d52d 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -778,6 +778,10 @@ void __init early_fixmap_init(void)
 	}
 }
 
+/*
+ * Unusually, this is also called in IRQ context (ghes_iounmap_irq) so if we
+ * ever need to use IPIs for TLB broadcasting, then we're in trouble here.
+ */
 void __set_fixmap(enum fixed_addresses idx,
 			       phys_addr_t phys, pgprot_t flags)
 {
diff --git a/arch/arm64/mm/physaddr.c b/arch/arm64/mm/physaddr.c
index 91371daf397c..67a9ba9eaa96 100644
--- a/arch/arm64/mm/physaddr.c
+++ b/arch/arm64/mm/physaddr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/export.h>
 #include <linux/types.h>
diff --git a/arch/arm64/mm/ptdump_debugfs.c b/arch/arm64/mm/ptdump_debugfs.c
index eee4d864350c..02b18f8b2905 100644
--- a/arch/arm64/mm/ptdump_debugfs.c
+++ b/arch/arm64/mm/ptdump_debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index 89bdb8264305..af5369422032 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MMU
 	def_bool n
 
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
index f3337ee03621..4ddd1b73ee3e 100644
--- a/arch/blackfin/Kconfig.debug
+++ b/arch/blackfin/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/blackfin/include/asm/clkdev.h b/arch/blackfin/include/asm/clkdev.h
index 7ac2436856a5..ded0209348c7 100644
--- a/arch/blackfin/include/asm/clkdev.h
+++ b/arch/blackfin/include/asm/clkdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CLKDEV__H_
 #define __ASM_CLKDEV__H_
 
diff --git a/arch/blackfin/include/asm/pci.h b/arch/blackfin/include/asm/pci.h
index 11ea1cb35036..e6458ddbaf7e 100644
--- a/arch/blackfin/include/asm/pci.h
+++ b/arch/blackfin/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Changed from asm-m68k version, Lineo Inc. 	May 2001	*/
 
 #ifndef _ASM_BFIN_PCI_H
diff --git a/arch/blackfin/include/asm/rwlock.h b/arch/blackfin/include/asm/rwlock.h
index 4a724b378971..98ebc07cb283 100644
--- a/arch/blackfin/include/asm/rwlock.h
+++ b/arch/blackfin/include/asm/rwlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_BLACKFIN_RWLOCK_H
 #define _ASM_BLACKFIN_RWLOCK_H
 
diff --git a/arch/blackfin/include/asm/spinlock.h b/arch/blackfin/include/asm/spinlock.h
index f6431439d15d..839d1441af3a 100644
--- a/arch/blackfin/include/asm/spinlock.h
+++ b/arch/blackfin/include/asm/spinlock.h
@@ -36,8 +36,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 	__raw_spin_lock_asm(&lock->lock);
 }
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	return __raw_spin_trylock_asm(&lock->lock);
@@ -48,23 +46,11 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
 	__raw_spin_unlock_asm(&lock->lock);
 }
 
-static inline int arch_read_can_lock(arch_rwlock_t *rw)
-{
-	return __raw_uncached_fetch_asm(&rw->lock) > 0;
-}
-
-static inline int arch_write_can_lock(arch_rwlock_t *rw)
-{
-	return __raw_uncached_fetch_asm(&rw->lock) == RW_LOCK_BIAS;
-}
-
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	__raw_read_lock_asm(&rw->lock);
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-
 static inline int arch_read_trylock(arch_rwlock_t *rw)
 {
 	return __raw_read_trylock_asm(&rw->lock);
@@ -80,8 +66,6 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
 	__raw_write_lock_asm(&rw->lock);
 }
 
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 static inline int arch_write_trylock(arch_rwlock_t *rw)
 {
 	return __raw_write_trylock_asm(&rw->lock);
@@ -92,10 +76,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 	__raw_write_unlock_asm(&rw->lock);
 }
 
-#define arch_spin_relax(lock)  	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif
 
 #endif /*  !__BFIN_SPINLOCK_H */
diff --git a/arch/blackfin/include/mach-common/ports-a.h b/arch/blackfin/include/mach-common/ports-a.h
index 9f78a761c40a..71bcd74f83fd 100644
--- a/arch/blackfin/include/mach-common/ports-a.h
+++ b/arch/blackfin/include/mach-common/ports-a.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port A Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-b.h b/arch/blackfin/include/mach-common/ports-b.h
index b81702f09ec6..8013cc8e839b 100644
--- a/arch/blackfin/include/mach-common/ports-b.h
+++ b/arch/blackfin/include/mach-common/ports-b.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port B Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-c.h b/arch/blackfin/include/mach-common/ports-c.h
index 3cc665e0ba08..94e71010ffe9 100644
--- a/arch/blackfin/include/mach-common/ports-c.h
+++ b/arch/blackfin/include/mach-common/ports-c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port C Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-d.h b/arch/blackfin/include/mach-common/ports-d.h
index 868c6a01f1b2..ba84a9fb3450 100644
--- a/arch/blackfin/include/mach-common/ports-d.h
+++ b/arch/blackfin/include/mach-common/ports-d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port D Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-e.h b/arch/blackfin/include/mach-common/ports-e.h
index c88b0d0dd443..2264fb58bc2b 100644
--- a/arch/blackfin/include/mach-common/ports-e.h
+++ b/arch/blackfin/include/mach-common/ports-e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port E Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-f.h b/arch/blackfin/include/mach-common/ports-f.h
index d6af20633278..2b8ca3ae2a8e 100644
--- a/arch/blackfin/include/mach-common/ports-f.h
+++ b/arch/blackfin/include/mach-common/ports-f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port F Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-g.h b/arch/blackfin/include/mach-common/ports-g.h
index 09355d333c0e..11ad917fcf91 100644
--- a/arch/blackfin/include/mach-common/ports-g.h
+++ b/arch/blackfin/include/mach-common/ports-g.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port G Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-h.h b/arch/blackfin/include/mach-common/ports-h.h
index fa3910c6fbd4..511d088b8094 100644
--- a/arch/blackfin/include/mach-common/ports-h.h
+++ b/arch/blackfin/include/mach-common/ports-h.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port H Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-i.h b/arch/blackfin/include/mach-common/ports-i.h
index f176f08af624..21bbab166ae8 100644
--- a/arch/blackfin/include/mach-common/ports-i.h
+++ b/arch/blackfin/include/mach-common/ports-i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port I Masks
  */
diff --git a/arch/blackfin/include/mach-common/ports-j.h b/arch/blackfin/include/mach-common/ports-j.h
index 924123ecec5a..96a252b0b0bd 100644
--- a/arch/blackfin/include/mach-common/ports-j.h
+++ b/arch/blackfin/include/mach-common/ports-j.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Port J Masks
  */
diff --git a/arch/blackfin/include/uapi/asm/bfin_sport.h b/arch/blackfin/include/uapi/asm/bfin_sport.h
index c086de87ee61..86c36a208dc5 100644
--- a/arch/blackfin/include/uapi/asm/bfin_sport.h
+++ b/arch/blackfin/include/uapi/asm/bfin_sport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * bfin_sport.h - interface to Blackfin SPORTs
  *
diff --git a/arch/blackfin/include/uapi/asm/byteorder.h b/arch/blackfin/include/uapi/asm/byteorder.h
index 3b125da5dcb2..bcab6670c7fe 100644
--- a/arch/blackfin/include/uapi/asm/byteorder.h
+++ b/arch/blackfin/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__BFIN_ASM_BYTEORDER_H
 #define _UAPI__BFIN_ASM_BYTEORDER_H
 
diff --git a/arch/blackfin/include/uapi/asm/cachectl.h b/arch/blackfin/include/uapi/asm/cachectl.h
index 4fdab75dee15..b5c86fbbca94 100644
--- a/arch/blackfin/include/uapi/asm/cachectl.h
+++ b/arch/blackfin/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * based on the mips/cachectl.h
  *
diff --git a/arch/blackfin/include/uapi/asm/fcntl.h b/arch/blackfin/include/uapi/asm/fcntl.h
index f51ad9a4f617..0b02954f06c3 100644
--- a/arch/blackfin/include/uapi/asm/fcntl.h
+++ b/arch/blackfin/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2008 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/fixed_code.h b/arch/blackfin/include/uapi/asm/fixed_code.h
index 3bef1dca379f..707b9214bb26 100644
--- a/arch/blackfin/include/uapi/asm/fixed_code.h
+++ b/arch/blackfin/include/uapi/asm/fixed_code.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * This file defines the fixed addresses where userspace programs
  * can find atomic code sequences.
diff --git a/arch/blackfin/include/uapi/asm/ioctls.h b/arch/blackfin/include/uapi/asm/ioctls.h
index 9a41c20fc83d..422fee3e4776 100644
--- a/arch/blackfin/include/uapi/asm/ioctls.h
+++ b/arch/blackfin/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ARCH_BFIN_IOCTLS_H__
 #define _UAPI__ARCH_BFIN_IOCTLS_H__
 
diff --git a/arch/blackfin/include/uapi/asm/poll.h b/arch/blackfin/include/uapi/asm/poll.h
index 99c7d6816da0..8b094d43e9b7 100644
--- a/arch/blackfin/include/uapi/asm/poll.h
+++ b/arch/blackfin/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2009 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/posix_types.h b/arch/blackfin/include/uapi/asm/posix_types.h
index 9608ef64dc47..8947c75cf638 100644
--- a/arch/blackfin/include/uapi/asm/posix_types.h
+++ b/arch/blackfin/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2009 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/ptrace.h b/arch/blackfin/include/uapi/asm/ptrace.h
index fd48bd0739d2..e4423d5560da 100644
--- a/arch/blackfin/include/uapi/asm/ptrace.h
+++ b/arch/blackfin/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2008 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/sigcontext.h b/arch/blackfin/include/uapi/asm/sigcontext.h
index b58f12dc27bd..66b4d32af89c 100644
--- a/arch/blackfin/include/uapi/asm/sigcontext.h
+++ b/arch/blackfin/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2008 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/siginfo.h b/arch/blackfin/include/uapi/asm/siginfo.h
index 79dfe3979123..b1db506c8d2e 100644
--- a/arch/blackfin/include/uapi/asm/siginfo.h
+++ b/arch/blackfin/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2008 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/signal.h b/arch/blackfin/include/uapi/asm/signal.h
index f0a0d8b6663a..f8e3b99ba0a2 100644
--- a/arch/blackfin/include/uapi/asm/signal.h
+++ b/arch/blackfin/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_BLACKFIN_SIGNAL_H
 #define _UAPI_BLACKFIN_SIGNAL_H
 
diff --git a/arch/blackfin/include/uapi/asm/stat.h b/arch/blackfin/include/uapi/asm/stat.h
index d3068a750b94..458959d1a5ec 100644
--- a/arch/blackfin/include/uapi/asm/stat.h
+++ b/arch/blackfin/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2004-2006 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/swab.h b/arch/blackfin/include/uapi/asm/swab.h
index f5626b77684a..d3437933b95f 100644
--- a/arch/blackfin/include/uapi/asm/swab.h
+++ b/arch/blackfin/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2009 Analog Devices Inc.
  *
diff --git a/arch/blackfin/include/uapi/asm/unistd.h b/arch/blackfin/include/uapi/asm/unistd.h
index 0cb9078ef482..2d392c09323c 100644
--- a/arch/blackfin/include/uapi/asm/unistd.h
+++ b/arch/blackfin/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2004-2009 Analog Devices Inc.
  *
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index 703dc7cf2ecc..1580791f0e3a 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/kernel/Makefile
 #
diff --git a/arch/blackfin/kernel/cplb-nompu/Makefile b/arch/blackfin/kernel/cplb-nompu/Makefile
index 394d0b1b28fe..81baa27bc389 100644
--- a/arch/blackfin/kernel/cplb-nompu/Makefile
+++ b/arch/blackfin/kernel/cplb-nompu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/kernel/cplb-nompu/Makefile
 #
diff --git a/arch/blackfin/lib/Makefile b/arch/blackfin/lib/Makefile
index 42c47dc9e12f..74ddde0eb2e7 100644
--- a/arch/blackfin/lib/Makefile
+++ b/arch/blackfin/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/lib/Makefile
 #
diff --git a/arch/blackfin/mach-bf518/Kconfig b/arch/blackfin/mach-bf518/Kconfig
index bde92a19970e..4731f6b27e47 100644
--- a/arch/blackfin/mach-bf518/Kconfig
+++ b/arch/blackfin/mach-bf518/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config BF51x
 	def_bool y
 	depends on (BF512 || BF514 || BF516 || BF518)
diff --git a/arch/blackfin/mach-bf518/boards/Kconfig b/arch/blackfin/mach-bf518/boards/Kconfig
index 252261ec04c4..f7b93b950ef4 100644
--- a/arch/blackfin/mach-bf518/boards/Kconfig
+++ b/arch/blackfin/mach-bf518/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN518F_EZBRD
diff --git a/arch/blackfin/mach-bf527/Kconfig b/arch/blackfin/mach-bf527/Kconfig
index 0ba54701af0b..6df20f9c7bd4 100644
--- a/arch/blackfin/mach-bf527/Kconfig
+++ b/arch/blackfin/mach-bf527/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config BF52x
 	def_bool y
 	depends on (BF522 || BF523 || BF524 || BF525 || BF526 || BF527)
diff --git a/arch/blackfin/mach-bf527/boards/Kconfig b/arch/blackfin/mach-bf527/boards/Kconfig
index 1cc2667c10f1..a76f02fae11c 100644
--- a/arch/blackfin/mach-bf527/boards/Kconfig
+++ b/arch/blackfin/mach-bf527/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN527_EZKIT
diff --git a/arch/blackfin/mach-bf527/boards/Makefile b/arch/blackfin/mach-bf527/boards/Makefile
index 1d67da9f05ac..6ada1537e20a 100644
--- a/arch/blackfin/mach-bf527/boards/Makefile
+++ b/arch/blackfin/mach-bf527/boards/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/mach-bf527/boards/Makefile
 #
diff --git a/arch/blackfin/mach-bf533/Kconfig b/arch/blackfin/mach-bf533/Kconfig
index 4c572443147e..4e1a05be7137 100644
--- a/arch/blackfin/mach-bf533/Kconfig
+++ b/arch/blackfin/mach-bf533/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if (BF533 || BF532 || BF531)
 
 source "arch/blackfin/mach-bf533/boards/Kconfig"
diff --git a/arch/blackfin/mach-bf533/boards/Kconfig b/arch/blackfin/mach-bf533/boards/Kconfig
index 8d8b3e7321e6..3fde0df1b5f2 100644
--- a/arch/blackfin/mach-bf533/boards/Kconfig
+++ b/arch/blackfin/mach-bf533/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN533_STAMP
diff --git a/arch/blackfin/mach-bf533/boards/Makefile b/arch/blackfin/mach-bf533/boards/Makefile
index ff1e832f80d2..35256d2fc040 100644
--- a/arch/blackfin/mach-bf533/boards/Makefile
+++ b/arch/blackfin/mach-bf533/boards/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/mach-bf533/boards/Makefile
 #
diff --git a/arch/blackfin/mach-bf537/Kconfig b/arch/blackfin/mach-bf537/Kconfig
index 08b2b343ccec..1d69b043afd4 100644
--- a/arch/blackfin/mach-bf537/Kconfig
+++ b/arch/blackfin/mach-bf537/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if (BF537 || BF534 || BF536)
 
 source "arch/blackfin/mach-bf537/boards/Kconfig"
diff --git a/arch/blackfin/mach-bf537/boards/Kconfig b/arch/blackfin/mach-bf537/boards/Kconfig
index a44bf3a1816e..60b7b29e512e 100644
--- a/arch/blackfin/mach-bf537/boards/Kconfig
+++ b/arch/blackfin/mach-bf537/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN537_STAMP
diff --git a/arch/blackfin/mach-bf537/boards/Makefile b/arch/blackfin/mach-bf537/boards/Makefile
index fe42258fe1f4..47a1acc5f389 100644
--- a/arch/blackfin/mach-bf537/boards/Makefile
+++ b/arch/blackfin/mach-bf537/boards/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/mach-bf537/boards/Makefile
 #
diff --git a/arch/blackfin/mach-bf538/Kconfig b/arch/blackfin/mach-bf538/Kconfig
index 2d280f504ab0..4aea85e4e5cf 100644
--- a/arch/blackfin/mach-bf538/Kconfig
+++ b/arch/blackfin/mach-bf538/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if (BF538 || BF539)
 
 source "arch/blackfin/mach-bf538/boards/Kconfig"
diff --git a/arch/blackfin/mach-bf538/boards/Kconfig b/arch/blackfin/mach-bf538/boards/Kconfig
index 215249ba58bb..114cff440d43 100644
--- a/arch/blackfin/mach-bf538/boards/Kconfig
+++ b/arch/blackfin/mach-bf538/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN538_EZKIT
diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
index 334ec7b12188..71c2a765af1d 100644
--- a/arch/blackfin/mach-bf548/Kconfig
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config BF542
 	def_bool y
 	depends on BF542_std || BF542M
diff --git a/arch/blackfin/mach-bf548/boards/Kconfig b/arch/blackfin/mach-bf548/boards/Kconfig
index d38e52671853..e8ce579ae8f0 100644
--- a/arch/blackfin/mach-bf548/boards/Kconfig
+++ b/arch/blackfin/mach-bf548/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN548_EZKIT
diff --git a/arch/blackfin/mach-bf561/Kconfig b/arch/blackfin/mach-bf561/Kconfig
index cb9743641511..059c3cbdb5ec 100644
--- a/arch/blackfin/mach-bf561/Kconfig
+++ b/arch/blackfin/mach-bf561/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if (BF561)
 
 source "arch/blackfin/mach-bf561/boards/Kconfig"
diff --git a/arch/blackfin/mach-bf561/boards/Kconfig b/arch/blackfin/mach-bf561/boards/Kconfig
index 1aa529b9f8bb..10e977b56710 100644
--- a/arch/blackfin/mach-bf561/boards/Kconfig
+++ b/arch/blackfin/mach-bf561/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN561_EZKIT
diff --git a/arch/blackfin/mach-bf609/Kconfig b/arch/blackfin/mach-bf609/Kconfig
index 6584190faeb8..7d6a8b8926ba 100644
--- a/arch/blackfin/mach-bf609/Kconfig
+++ b/arch/blackfin/mach-bf609/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config BF60x
 	def_bool y
 	depends on (BF609)
diff --git a/arch/blackfin/mach-bf609/boards/Kconfig b/arch/blackfin/mach-bf609/boards/Kconfig
index 30e8b6b0d2ed..350154b2a3ee 100644
--- a/arch/blackfin/mach-bf609/boards/Kconfig
+++ b/arch/blackfin/mach-bf609/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "System type"
 	default BFIN609_EZKIT
diff --git a/arch/blackfin/mach-bf609/clock.c b/arch/blackfin/mach-bf609/clock.c
index 392a59b9a504..16e0b09e2197 100644
--- a/arch/blackfin/mach-bf609/clock.c
+++ b/arch/blackfin/mach-bf609/clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/list.h>
diff --git a/arch/blackfin/mach-bf609/dpm.S b/arch/blackfin/mach-bf609/dpm.S
index 54d50c689db1..fcb8f688a8b2 100644
--- a/arch/blackfin/mach-bf609/dpm.S
+++ b/arch/blackfin/mach-bf609/dpm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/blackfin.h>
 #include <asm/dpmc.h>
diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile
index f09979204040..fcef1c8e117f 100644
--- a/arch/blackfin/mach-common/Makefile
+++ b/arch/blackfin/mach-common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/mach-common/Makefile
 #
diff --git a/arch/blackfin/mach-common/clock.h b/arch/blackfin/mach-common/clock.h
index 645ff460a1f2..fed851a51aaf 100644
--- a/arch/blackfin/mach-common/clock.h
+++ b/arch/blackfin/mach-common/clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_COMMON_CLKDEV_H
 #define __MACH_COMMON_CLKDEV_H
 
diff --git a/arch/blackfin/oprofile/Makefile b/arch/blackfin/oprofile/Makefile
index c70af3a01297..e89e1c9f3496 100644
--- a/arch/blackfin/oprofile/Makefile
+++ b/arch/blackfin/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/blackfin/oprofile/Makefile
 #
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 5aa8ea8bad2d..c6b4dd1418b4 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
diff --git a/arch/c6x/boot/Makefile b/arch/c6x/boot/Makefile
index 8734abee548e..842b7b0bfe80 100644
--- a/arch/c6x/boot/Makefile
+++ b/arch/c6x/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for bootable kernel images
 #
diff --git a/arch/c6x/boot/dts/Makefile b/arch/c6x/boot/dts/Makefile
index c7528b02d061..7368838c6e71 100644
--- a/arch/c6x/boot/dts/Makefile
+++ b/arch/c6x/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for device trees
 #
diff --git a/arch/c6x/boot/dts/tms320c6455.dtsi b/arch/c6x/boot/dts/tms320c6455.dtsi
index a804ec1e018b..0b21cb30343b 100644
--- a/arch/c6x/boot/dts/tms320c6455.dtsi
+++ b/arch/c6x/boot/dts/tms320c6455.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	#address-cells = <1>;
diff --git a/arch/c6x/boot/dts/tms320c6457.dtsi b/arch/c6x/boot/dts/tms320c6457.dtsi
index 35f40709a719..e49f7ae19124 100644
--- a/arch/c6x/boot/dts/tms320c6457.dtsi
+++ b/arch/c6x/boot/dts/tms320c6457.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	#address-cells = <1>;
diff --git a/arch/c6x/boot/dts/tms320c6472.dtsi b/arch/c6x/boot/dts/tms320c6472.dtsi
index b488aaec65c0..9dd4b04e78ef 100644
--- a/arch/c6x/boot/dts/tms320c6472.dtsi
+++ b/arch/c6x/boot/dts/tms320c6472.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	#address-cells = <1>;
diff --git a/arch/c6x/boot/dts/tms320c6474.dtsi b/arch/c6x/boot/dts/tms320c6474.dtsi
index cc601bf348a1..0ef5333629a6 100644
--- a/arch/c6x/boot/dts/tms320c6474.dtsi
+++ b/arch/c6x/boot/dts/tms320c6474.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	#address-cells = <1>;
diff --git a/arch/c6x/boot/dts/tms320c6678.dtsi b/arch/c6x/boot/dts/tms320c6678.dtsi
index 386196e5eae7..da1e3f2bf062 100644
--- a/arch/c6x/boot/dts/tms320c6678.dtsi
+++ b/arch/c6x/boot/dts/tms320c6678.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	#address-cells = <1>;
diff --git a/arch/c6x/include/asm/flat.h b/arch/c6x/include/asm/flat.h
index 6f1feb00bd52..76fd0bb962a3 100644
--- a/arch/c6x/include/asm/flat.h
+++ b/arch/c6x/include/asm/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_C6X_FLAT_H
 #define __ASM_C6X_FLAT_H
 
diff --git a/arch/c6x/include/asm/linkage.h b/arch/c6x/include/asm/linkage.h
index 376925c47d57..1ad615da6479 100644
--- a/arch/c6x/include/asm/linkage.h
+++ b/arch/c6x/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_C6X_LINKAGE_H
 #define _ASM_C6X_LINKAGE_H
 
diff --git a/arch/c6x/include/asm/megamod-pic.h b/arch/c6x/include/asm/megamod-pic.h
index eca0a8678034..a0a6d596bf9b 100644
--- a/arch/c6x/include/asm/megamod-pic.h
+++ b/arch/c6x/include/asm/megamod-pic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _C6X_MEGAMOD_PIC_H
 #define _C6X_MEGAMOD_PIC_H
 
diff --git a/arch/c6x/include/asm/page.h b/arch/c6x/include/asm/page.h
index d18e2b0c7aea..70db1e7632bc 100644
--- a/arch/c6x/include/asm/page.h
+++ b/arch/c6x/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_C6X_PAGE_H
 #define _ASM_C6X_PAGE_H
 
diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
index 7c87b5be53b5..8f7cce829f8e 100644
--- a/arch/c6x/include/asm/processor.h
+++ b/arch/c6x/include/asm/processor.h
@@ -92,9 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-#define copy_segments(tsk, mm)		do { } while (0)
-#define release_segments(mm)		do { } while (0)
-
 /*
  * saved kernel SP and DP of a blocked thread.
  */
diff --git a/arch/c6x/include/asm/sections.h b/arch/c6x/include/asm/sections.h
index f703989d837a..d6c591ab5b7e 100644
--- a/arch/c6x/include/asm/sections.h
+++ b/arch/c6x/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_C6X_SECTIONS_H
 #define _ASM_C6X_SECTIONS_H
 
diff --git a/arch/c6x/include/asm/timer64.h b/arch/c6x/include/asm/timer64.h
index bbe27bb9887e..b850dfef1f79 100644
--- a/arch/c6x/include/asm/timer64.h
+++ b/arch/c6x/include/asm/timer64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _C6X_TIMER64_H
 #define _C6X_TIMER64_H
 
diff --git a/arch/c6x/include/asm/tlb.h b/arch/c6x/include/asm/tlb.h
index 8709e5e29d2d..34525dea1356 100644
--- a/arch/c6x/include/asm/tlb.h
+++ b/arch/c6x/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_C6X_TLB_H
 #define _ASM_C6X_TLB_H
 
diff --git a/arch/c6x/include/uapi/asm/byteorder.h b/arch/c6x/include/uapi/asm/byteorder.h
index 166038db342b..ab61f867391c 100644
--- a/arch/c6x/include/uapi/asm/byteorder.h
+++ b/arch/c6x/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_C6X_BYTEORDER_H
 #define _ASM_C6X_BYTEORDER_H
 
diff --git a/arch/c6x/include/uapi/asm/ptrace.h b/arch/c6x/include/uapi/asm/ptrace.h
index cc0a4d99151e..9b51110a0842 100644
--- a/arch/c6x/include/uapi/asm/ptrace.h
+++ b/arch/c6x/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Copyright (C) 2004, 2006, 2009, 2010 Texas Instruments Incorporated
  *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
diff --git a/arch/c6x/include/uapi/asm/setup.h b/arch/c6x/include/uapi/asm/setup.h
index ad9ac97a8dad..e90548cebec3 100644
--- a/arch/c6x/include/uapi/asm/setup.h
+++ b/arch/c6x/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_C6X_SETUP_H
 #define _UAPI_ASM_C6X_SETUP_H
 
diff --git a/arch/c6x/include/uapi/asm/sigcontext.h b/arch/c6x/include/uapi/asm/sigcontext.h
index eb702f39cde7..4e5a9a260861 100644
--- a/arch/c6x/include/uapi/asm/sigcontext.h
+++ b/arch/c6x/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Port on Texas Instruments TMS320C6x architecture
  *
diff --git a/arch/c6x/include/uapi/asm/swab.h b/arch/c6x/include/uapi/asm/swab.h
index fd4bb0520e5e..c407c0497718 100644
--- a/arch/c6x/include/uapi/asm/swab.h
+++ b/arch/c6x/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Copyright (C) 2011 Texas Instruments Incorporated
  *  Author: Mark Salter <msalter@redhat.com>
diff --git a/arch/c6x/include/uapi/asm/unistd.h b/arch/c6x/include/uapi/asm/unistd.h
index 12d73d9d81f5..0d2daf7f9809 100644
--- a/arch/c6x/include/uapi/asm/unistd.h
+++ b/arch/c6x/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2011 Texas Instruments Incorporated
  *
diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile
index 580a515a9443..02f340d7b8fe 100644
--- a/arch/c6x/kernel/Makefile
+++ b/arch/c6x/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for arch/c6x/kernel/
 #
diff --git a/arch/c6x/kernel/asm-offsets.c b/arch/c6x/kernel/asm-offsets.c
index 60f1e437745d..cff57764fcad 100644
--- a/arch/c6x/kernel/asm-offsets.c
+++ b/arch/c6x/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed
diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S
index 29ebea49ddd5..1fba5b421eee 100644
--- a/arch/c6x/kernel/vmlinux.lds.S
+++ b/arch/c6x/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ld script for the c6x kernel
  *
diff --git a/arch/c6x/platforms/Kconfig b/arch/c6x/platforms/Kconfig
index c4a0fad89aaf..f3a9ae6e0e82 100644
--- a/arch/c6x/platforms/Kconfig
+++ b/arch/c6x/platforms/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 config SOC_TMS320C6455
 	bool "TMS320C6455"
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 71b758dc3a96..54d3f426763b 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MMU
 	bool
 	default y
diff --git a/arch/cris/Kconfig.debug b/arch/cris/Kconfig.debug
index 14881e81e8a3..6084d5e0c512 100644
--- a/arch/cris/Kconfig.debug
+++ b/arch/cris/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config PROFILING
diff --git a/arch/cris/arch-v10/Kconfig b/arch/cris/arch-v10/Kconfig
index df9a38b4f18f..d4015a931374 100644
--- a/arch/cris/arch-v10/Kconfig
+++ b/arch/cris/arch-v10/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ETRAX_ARCH_V10
 
 menu "CRIS v10 options"
diff --git a/arch/cris/arch-v10/drivers/Kconfig b/arch/cris/arch-v10/drivers/Kconfig
index 239dab0b95c1..8792af63c049 100644
--- a/arch/cris/arch-v10/drivers/Kconfig
+++ b/arch/cris/arch-v10/drivers/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ETRAX_ARCH_V10
 
 config ETRAX_ETHERNET
diff --git a/arch/cris/arch-v10/drivers/Makefile b/arch/cris/arch-v10/drivers/Makefile
index e5c13183b97c..d5549dca81bf 100644
--- a/arch/cris/arch-v10/drivers/Makefile
+++ b/arch/cris/arch-v10/drivers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Etrax-specific drivers
 #
diff --git a/arch/cris/arch-v10/drivers/eeprom.c b/arch/cris/arch-v10/drivers/eeprom.c
index 33558d270a53..2d312c8a4dd5 100644
--- a/arch/cris/arch-v10/drivers/eeprom.c
+++ b/arch/cris/arch-v10/drivers/eeprom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*!*****************************************************************************
 *!
 *!  Implements an interface for i2c compatible eeproms to run under Linux.
diff --git a/arch/cris/arch-v10/drivers/gpio.c b/arch/cris/arch-v10/drivers/gpio.c
index dfd3b3ba5e4e..68dbe261dc57 100644
--- a/arch/cris/arch-v10/drivers/gpio.c
+++ b/arch/cris/arch-v10/drivers/gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Etrax general port I/O device
  *
diff --git a/arch/cris/arch-v10/drivers/i2c.c b/arch/cris/arch-v10/drivers/i2c.c
index b3d1f9ed1b98..ec35d62e8e63 100644
--- a/arch/cris/arch-v10/drivers/i2c.c
+++ b/arch/cris/arch-v10/drivers/i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*!***************************************************************************
 *!
 *! FILE NAME  : i2c.c
diff --git a/arch/cris/arch-v10/drivers/i2c.h b/arch/cris/arch-v10/drivers/i2c.h
index e36c96276478..de45c1ffbd7b 100644
--- a/arch/cris/arch-v10/drivers/i2c.h
+++ b/arch/cris/arch-v10/drivers/i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* i2c.h */
 int i2c_init(void);
 
diff --git a/arch/cris/arch-v10/drivers/sync_serial.c b/arch/cris/arch-v10/drivers/sync_serial.c
index cc62572c1b94..cfe9176f2205 100644
--- a/arch/cris/arch-v10/drivers/sync_serial.c
+++ b/arch/cris/arch-v10/drivers/sync_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simple synchronous serial port driver for ETRAX 100LX.
  *
diff --git a/arch/cris/arch-v10/kernel/Makefile b/arch/cris/arch-v10/kernel/Makefile
index 4841e822cdd1..7ec04b4a285e 100644
--- a/arch/cris/arch-v10/kernel/Makefile
+++ b/arch/cris/arch-v10/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/cris/arch-v10/kernel/crisksyms.c b/arch/cris/arch-v10/kernel/crisksyms.c
index 1ca6fc283232..e1d897ed5b37 100644
--- a/arch/cris/arch-v10/kernel/crisksyms.c
+++ b/arch/cris/arch-v10/kernel/crisksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <asm/io.h>
 #include <arch/svinto.h>
diff --git a/arch/cris/arch-v10/kernel/debugport.c b/arch/cris/arch-v10/kernel/debugport.c
index b6549e54be29..d30834d4dd7e 100644
--- a/arch/cris/arch-v10/kernel/debugport.c
+++ b/arch/cris/arch-v10/kernel/debugport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Serialport functions for debugging
  *
  * Copyright (c) 2000-2007 Axis Communications AB
diff --git a/arch/cris/arch-v10/kernel/dma.c b/arch/cris/arch-v10/kernel/dma.c
index 5795047359b2..c68e978def05 100644
--- a/arch/cris/arch-v10/kernel/dma.c
+++ b/arch/cris/arch-v10/kernel/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Wrapper for DMA channel allocator that updates DMA client muxing.
  * Copyright 2004-2007, Axis Communications AB
  */
diff --git a/arch/cris/arch-v10/kernel/entry.S b/arch/cris/arch-v10/kernel/entry.S
index b5622521dad5..1f066eebbd2b 100644
--- a/arch/cris/arch-v10/kernel/entry.S
+++ b/arch/cris/arch-v10/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/cris/entry.S
  *
diff --git a/arch/cris/arch-v10/kernel/fasttimer.c b/arch/cris/arch-v10/kernel/fasttimer.c
index e9298739d72e..94abbff557ff 100644
--- a/arch/cris/arch-v10/kernel/fasttimer.c
+++ b/arch/cris/arch-v10/kernel/fasttimer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/cris/kernel/fasttimer.c
  *
diff --git a/arch/cris/arch-v10/kernel/head.S b/arch/cris/arch-v10/kernel/head.S
index a74aa233b84e..b260a8833903 100644
--- a/arch/cris/arch-v10/kernel/head.S
+++ b/arch/cris/arch-v10/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Head of the kernel - alter with care
  *
diff --git a/arch/cris/arch-v10/kernel/io_interface_mux.c b/arch/cris/arch-v10/kernel/io_interface_mux.c
index ad64cd1c861a..13a887ce115a 100644
--- a/arch/cris/arch-v10/kernel/io_interface_mux.c
+++ b/arch/cris/arch-v10/kernel/io_interface_mux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* IO interface mux allocator for ETRAX100LX.
  * Copyright 2004-2007, Axis Communications AB
  */
diff --git a/arch/cris/arch-v10/kernel/irq.c b/arch/cris/arch-v10/kernel/irq.c
index 09cae80a834a..df11e383acdd 100644
--- a/arch/cris/arch-v10/kernel/irq.c
+++ b/arch/cris/arch-v10/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/cris/kernel/irq.c
  *
diff --git a/arch/cris/arch-v10/kernel/kgdb.c b/arch/cris/arch-v10/kernel/kgdb.c
index ed71ade93a73..79b13564d15c 100644
--- a/arch/cris/arch-v10/kernel/kgdb.c
+++ b/arch/cris/arch-v10/kernel/kgdb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*!**************************************************************************
 *!
 *! FILE NAME  : kgdb.c
diff --git a/arch/cris/arch-v10/kernel/process.c b/arch/cris/arch-v10/kernel/process.c
index a2cdb1521aca..16848b2c61c8 100644
--- a/arch/cris/arch-v10/kernel/process.c
+++ b/arch/cris/arch-v10/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/kernel/process.c
  *
diff --git a/arch/cris/arch-v10/kernel/ptrace.c b/arch/cris/arch-v10/kernel/ptrace.c
index c2f2b9b83cc4..b89f57ae096e 100644
--- a/arch/cris/arch-v10/kernel/ptrace.c
+++ b/arch/cris/arch-v10/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2000-2003, Axis Communications AB.
  */
diff --git a/arch/cris/arch-v10/kernel/setup.c b/arch/cris/arch-v10/kernel/setup.c
index 7ab31f1c7540..8e4fc248f96f 100644
--- a/arch/cris/arch-v10/kernel/setup.c
+++ b/arch/cris/arch-v10/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  *  linux/arch/cris/arch-v10/kernel/setup.c
diff --git a/arch/cris/arch-v10/kernel/shadows.c b/arch/cris/arch-v10/kernel/shadows.c
index 2454a0b02f54..2e9565e868f2 100644
--- a/arch/cris/arch-v10/kernel/shadows.c
+++ b/arch/cris/arch-v10/kernel/shadows.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Various shadow registers. Defines for these are in include/asm-etrax100/io.h
  */
diff --git a/arch/cris/arch-v10/kernel/signal.c b/arch/cris/arch-v10/kernel/signal.c
index bab4a8dd6bfd..2beffc37faf8 100644
--- a/arch/cris/arch-v10/kernel/signal.c
+++ b/arch/cris/arch-v10/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/kernel/signal.c
  *
diff --git a/arch/cris/arch-v10/kernel/time.c b/arch/cris/arch-v10/kernel/time.c
index b5eb5cd2f60b..3d78373db254 100644
--- a/arch/cris/arch-v10/kernel/time.c
+++ b/arch/cris/arch-v10/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/arch-v10/kernel/time.c
  *
diff --git a/arch/cris/arch-v10/kernel/traps.c b/arch/cris/arch-v10/kernel/traps.c
index c0a501f29bd8..876d45b957f4 100644
--- a/arch/cris/arch-v10/kernel/traps.c
+++ b/arch/cris/arch-v10/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Helper functions for trap handlers
  *
diff --git a/arch/cris/arch-v10/lib/checksum.S b/arch/cris/arch-v10/lib/checksum.S
index 7d552f4bd5ae..a3b96391706f 100644
--- a/arch/cris/arch-v10/lib/checksum.S
+++ b/arch/cris/arch-v10/lib/checksum.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A fast checksum routine using movem
  * Copyright (c) 1998-2001 Axis Communications AB
diff --git a/arch/cris/arch-v10/lib/checksumcopy.S b/arch/cris/arch-v10/lib/checksumcopy.S
index 540db8a5f849..b21449cb1ad3 100644
--- a/arch/cris/arch-v10/lib/checksumcopy.S
+++ b/arch/cris/arch-v10/lib/checksumcopy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A fast checksum+copy routine using movem
  * Copyright (c) 1998, 2001 Axis Communications AB
diff --git a/arch/cris/arch-v10/lib/csumcpfruser.S b/arch/cris/arch-v10/lib/csumcpfruser.S
index 5f41ccd62754..beb8992ed478 100644
--- a/arch/cris/arch-v10/lib/csumcpfruser.S
+++ b/arch/cris/arch-v10/lib/csumcpfruser.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Add-on to transform csum_partial_copy_nocheck in checksumcopy.S into
  * csum_partial_copy_from_user by adding exception records.
diff --git a/arch/cris/arch-v10/lib/dram_init.S b/arch/cris/arch-v10/lib/dram_init.S
index 93310124333f..fd7437577938 100644
--- a/arch/cris/arch-v10/lib/dram_init.S
+++ b/arch/cris/arch-v10/lib/dram_init.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * DRAM/SDRAM initialization - alter with care
  * This file is intended to be included from other assembler files
diff --git a/arch/cris/arch-v10/lib/hw_settings.S b/arch/cris/arch-v10/lib/hw_settings.S
index c09f19f478a5..0d449852517e 100644
--- a/arch/cris/arch-v10/lib/hw_settings.S
+++ b/arch/cris/arch-v10/lib/hw_settings.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This table is used by some tools to extract hardware parameters.
  * The table should be included in the kernel and the decompressor.
diff --git a/arch/cris/arch-v10/lib/usercopy.c b/arch/cris/arch-v10/lib/usercopy.c
index 48fa37fe0f9b..3f1e2f4680f7 100644
--- a/arch/cris/arch-v10/lib/usercopy.c
+++ b/arch/cris/arch-v10/lib/usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * User address space access functions.
  * The non-inlined parts of asm-cris/uaccess.h are here.
diff --git a/arch/cris/arch-v10/mm/fault.c b/arch/cris/arch-v10/mm/fault.c
index 75210cbe61ce..e6c225169642 100644
--- a/arch/cris/arch-v10/mm/fault.c
+++ b/arch/cris/arch-v10/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/mm/fault.c
  *
diff --git a/arch/cris/arch-v10/mm/init.c b/arch/cris/arch-v10/mm/init.c
index 85e3f1b1f3ac..4da99a0e3b57 100644
--- a/arch/cris/arch-v10/mm/init.c
+++ b/arch/cris/arch-v10/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/arch-v10/mm/init.c
  *
diff --git a/arch/cris/arch-v10/mm/tlb.c b/arch/cris/arch-v10/mm/tlb.c
index 3225d38bdaea..7f1f752f2445 100644
--- a/arch/cris/arch-v10/mm/tlb.c
+++ b/arch/cris/arch-v10/mm/tlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/arch-v10/mm/tlb.c
  *
diff --git a/arch/cris/arch-v32/Kconfig b/arch/cris/arch-v32/Kconfig
index 17dbe03af5f4..958dabfca7eb 100644
--- a/arch/cris/arch-v32/Kconfig
+++ b/arch/cris/arch-v32/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ETRAX_ARCH_V32
 
 source arch/cris/arch-v32/mach-fs/Kconfig
diff --git a/arch/cris/arch-v32/drivers/Kconfig b/arch/cris/arch-v32/drivers/Kconfig
index b7cd6b9209a9..4d2d744bced2 100644
--- a/arch/cris/arch-v32/drivers/Kconfig
+++ b/arch/cris/arch-v32/drivers/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ETRAX_ARCH_V32
 
 config ETRAX_ETHERNET
diff --git a/arch/cris/arch-v32/drivers/Makefile b/arch/cris/arch-v32/drivers/Makefile
index b5a75fdce77b..57c9568707b0 100644
--- a/arch/cris/arch-v32/drivers/Makefile
+++ b/arch/cris/arch-v32/drivers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Etrax-specific drivers
 #
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c
index 14970f11bbf2..d688fe117dca 100644
--- a/arch/cris/arch-v32/drivers/cryptocop.c
+++ b/arch/cris/arch-v32/drivers/cryptocop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Stream co-processor driver for the ETRAX FS
  *
diff --git a/arch/cris/arch-v32/drivers/pci/bios.c b/arch/cris/arch-v32/drivers/pci/bios.c
index 5cc622c0225e..6b9e6cfaa29e 100644
--- a/arch/cris/arch-v32/drivers/pci/bios.c
+++ b/arch/cris/arch-v32/drivers/pci/bios.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci.h>
 #include <linux/kernel.h>
 #include <hwregs/intr_vect.h>
diff --git a/arch/cris/arch-v32/drivers/pci/dma.c b/arch/cris/arch-v32/drivers/pci/dma.c
index 7072341995ff..dbbd3816cc0b 100644
--- a/arch/cris/arch-v32/drivers/pci/dma.c
+++ b/arch/cris/arch-v32/drivers/pci/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dynamic DMA mapping support.
  *
diff --git a/arch/cris/arch-v32/kernel/Makefile b/arch/cris/arch-v32/kernel/Makefile
index d9fc617ea253..2db7e4f7c1fa 100644
--- a/arch/cris/arch-v32/kernel/Makefile
+++ b/arch/cris/arch-v32/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/cris/arch-v32/kernel/cache.c b/arch/cris/arch-v32/kernel/cache.c
index f38433b1f861..a080d2fa4803 100644
--- a/arch/cris/arch-v32/kernel/cache.c
+++ b/arch/cris/arch-v32/kernel/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <asm/io.h>
 #include <arch/cache.h>
diff --git a/arch/cris/arch-v32/kernel/cacheflush.S b/arch/cris/arch-v32/kernel/cacheflush.S
index 6fc3d95d7029..2a54d793f96c 100644
--- a/arch/cris/arch-v32/kernel/cacheflush.S
+++ b/arch/cris/arch-v32/kernel/cacheflush.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.global cris_flush_cache_range
 	.type	cris_flush_cache_range, @function
 cris_flush_cache_range:
diff --git a/arch/cris/arch-v32/kernel/crisksyms.c b/arch/cris/arch-v32/kernel/crisksyms.c
index b0566350a840..8cc8ad1cb532 100644
--- a/arch/cris/arch-v32/kernel/crisksyms.c
+++ b/arch/cris/arch-v32/kernel/crisksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/irq.h>
 #include <arch/dma.h>
diff --git a/arch/cris/arch-v32/kernel/debugport.c b/arch/cris/arch-v32/kernel/debugport.c
index d2f3f9c37102..69247fd2090a 100644
--- a/arch/cris/arch-v32/kernel/debugport.c
+++ b/arch/cris/arch-v32/kernel/debugport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2003, Axis Communications AB.
  */
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S
index b17a20999f87..0793a52b2c34 100644
--- a/arch/cris/arch-v32/kernel/entry.S
+++ b/arch/cris/arch-v32/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 2000-2003 Axis Communications AB
  *
diff --git a/arch/cris/arch-v32/kernel/fasttimer.c b/arch/cris/arch-v32/kernel/fasttimer.c
index eb4e0ff36295..7452c70f61ff 100644
--- a/arch/cris/arch-v32/kernel/fasttimer.c
+++ b/arch/cris/arch-v32/kernel/fasttimer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/cris/kernel/fasttimer.c
  *
diff --git a/arch/cris/arch-v32/kernel/head.S b/arch/cris/arch-v32/kernel/head.S
index 5ce83eb54f58..92f9fb1f6845 100644
--- a/arch/cris/arch-v32/kernel/head.S
+++ b/arch/cris/arch-v32/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CRISv32 kernel startup code.
  *
diff --git a/arch/cris/arch-v32/kernel/irq.c b/arch/cris/arch-v32/kernel/irq.c
index b07da4b695aa..414afd543232 100644
--- a/arch/cris/arch-v32/kernel/irq.c
+++ b/arch/cris/arch-v32/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2003, Axis Communications AB.
  */
diff --git a/arch/cris/arch-v32/kernel/kgdb.c b/arch/cris/arch-v32/kernel/kgdb.c
index e0fdea706eca..3d6f516763a5 100644
--- a/arch/cris/arch-v32/kernel/kgdb.c
+++ b/arch/cris/arch-v32/kernel/kgdb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/cris/arch-v32/kernel/kgdb.c
  *
diff --git a/arch/cris/arch-v32/kernel/kgdb_asm.S b/arch/cris/arch-v32/kernel/kgdb_asm.S
index f3a47605902a..c26ea6b0e334 100644
--- a/arch/cris/arch-v32/kernel/kgdb_asm.S
+++ b/arch/cris/arch-v32/kernel/kgdb_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 2004 Axis Communications AB
  *
diff --git a/arch/cris/arch-v32/kernel/process.c b/arch/cris/arch-v32/kernel/process.c
index fe87b383fbf3..a02f276d0ed4 100644
--- a/arch/cris/arch-v32/kernel/process.c
+++ b/arch/cris/arch-v32/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2000-2003  Axis Communications AB
  *
diff --git a/arch/cris/arch-v32/kernel/ptrace.c b/arch/cris/arch-v32/kernel/ptrace.c
index 0461e95bbb62..ccac1aaadc8a 100644
--- a/arch/cris/arch-v32/kernel/ptrace.c
+++ b/arch/cris/arch-v32/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2000-2007, Axis Communications AB.
  */
diff --git a/arch/cris/arch-v32/kernel/setup.c b/arch/cris/arch-v32/kernel/setup.c
index fe50287aa928..a36372e35e96 100644
--- a/arch/cris/arch-v32/kernel/setup.c
+++ b/arch/cris/arch-v32/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Display CPU info in /proc/cpuinfo.
  *
diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c
index ea2e8e1398e8..4f2e3ba3bf40 100644
--- a/arch/cris/arch-v32/kernel/signal.c
+++ b/arch/cris/arch-v32/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2003, Axis Communications AB.
  */
diff --git a/arch/cris/arch-v32/kernel/time.c b/arch/cris/arch-v32/kernel/time.c
index d2a84407654a..d07a3912687e 100644
--- a/arch/cris/arch-v32/kernel/time.c
+++ b/arch/cris/arch-v32/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/arch-v32/kernel/time.c
  *
diff --git a/arch/cris/arch-v32/kernel/traps.c b/arch/cris/arch-v32/kernel/traps.c
index a34256515036..ba54c7eccbaa 100644
--- a/arch/cris/arch-v32/kernel/traps.c
+++ b/arch/cris/arch-v32/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2003-2006, Axis Communications AB.
  */
diff --git a/arch/cris/arch-v32/lib/checksum.S b/arch/cris/arch-v32/lib/checksum.S
index 4a72a94a49ad..f773d4d93609 100644
--- a/arch/cris/arch-v32/lib/checksum.S
+++ b/arch/cris/arch-v32/lib/checksum.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A fast checksum routine using movem
  * Copyright (c) 1998-2007 Axis Communications AB
diff --git a/arch/cris/arch-v32/lib/checksumcopy.S b/arch/cris/arch-v32/lib/checksumcopy.S
index 54e209f18b06..a76e586d4114 100644
--- a/arch/cris/arch-v32/lib/checksumcopy.S
+++ b/arch/cris/arch-v32/lib/checksumcopy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A fast checksum+copy routine using movem
  * Copyright (c) 1998-2007 Axis Communications AB
diff --git a/arch/cris/arch-v32/lib/csumcpfruser.S b/arch/cris/arch-v32/lib/csumcpfruser.S
index 600ec16b9f28..093cd757fcfa 100644
--- a/arch/cris/arch-v32/lib/csumcpfruser.S
+++ b/arch/cris/arch-v32/lib/csumcpfruser.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Add-on to transform csum_partial_copy_nocheck in checksumcopy.S into
  * csum_partial_copy_from_user by adding exception records.
diff --git a/arch/cris/arch-v32/lib/delay.c b/arch/cris/arch-v32/lib/delay.c
index 39f1ac9995b4..db06a94ef646 100644
--- a/arch/cris/arch-v32/lib/delay.c
+++ b/arch/cris/arch-v32/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Precise Delay Loops for ETRAX FS
  *
diff --git a/arch/cris/arch-v32/lib/usercopy.c b/arch/cris/arch-v32/lib/usercopy.c
index 20b608026913..04e78b6ffa22 100644
--- a/arch/cris/arch-v32/lib/usercopy.c
+++ b/arch/cris/arch-v32/lib/usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * User address space access functions.
  * The non-inlined parts of asm-cris/uaccess.h are here.
diff --git a/arch/cris/arch-v32/mach-a3/Kconfig b/arch/cris/arch-v32/mach-a3/Kconfig
index 87547271a595..7b63755544dd 100644
--- a/arch/cris/arch-v32/mach-a3/Kconfig
+++ b/arch/cris/arch-v32/mach-a3/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if CRIS_MACH_ARTPEC3
 
 menu "Artpec-3 options"
diff --git a/arch/cris/arch-v32/mach-a3/arbiter.c b/arch/cris/arch-v32/mach-a3/arbiter.c
index 735a9b0abdb8..076182cc65a3 100644
--- a/arch/cris/arch-v32/mach-a3/arbiter.c
+++ b/arch/cris/arch-v32/mach-a3/arbiter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Memory arbiter functions. Allocates bandwidth through the
  * arbiter and sets up arbiter breakpoints.
diff --git a/arch/cris/arch-v32/mach-a3/dma.c b/arch/cris/arch-v32/mach-a3/dma.c
index 11f417f4da98..3f4e923b2527 100644
--- a/arch/cris/arch-v32/mach-a3/dma.c
+++ b/arch/cris/arch-v32/mach-a3/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Wrapper for DMA channel allocator that starts clocks etc */
 
 #include <linux/kernel.h>
diff --git a/arch/cris/arch-v32/mach-a3/dram_init.S b/arch/cris/arch-v32/mach-a3/dram_init.S
index 7dc26bdb26b5..733c3564ad79 100644
--- a/arch/cris/arch-v32/mach-a3/dram_init.S
+++ b/arch/cris/arch-v32/mach-a3/dram_init.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * DDR SDRAM initialization - alter with care
  * This file is intended to be included from other assembler files
diff --git a/arch/cris/arch-v32/mach-a3/hw_settings.S b/arch/cris/arch-v32/mach-a3/hw_settings.S
index 0145725a1ce5..7c325cc59e1f 100644
--- a/arch/cris/arch-v32/mach-a3/hw_settings.S
+++ b/arch/cris/arch-v32/mach-a3/hw_settings.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This table is used by some tools to extract hardware parameters.
  * The table should be included in the kernel and the decompressor.
diff --git a/arch/cris/arch-v32/mach-a3/pinmux.c b/arch/cris/arch-v32/mach-a3/pinmux.c
index 591f77526746..4875bf7aa53f 100644
--- a/arch/cris/arch-v32/mach-a3/pinmux.c
+++ b/arch/cris/arch-v32/mach-a3/pinmux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Allocator for I/O pins. All pins are allocated to GPIO at bootup.
  * Unassigned pins and GPIO pins can be allocated to a fixed interface
diff --git a/arch/cris/arch-v32/mach-fs/Kconfig b/arch/cris/arch-v32/mach-fs/Kconfig
index 7d1ab972bc0f..743ba3bcbaec 100644
--- a/arch/cris/arch-v32/mach-fs/Kconfig
+++ b/arch/cris/arch-v32/mach-fs/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ETRAXFS
 
 menu "ETRAX FS options"
diff --git a/arch/cris/arch-v32/mach-fs/arbiter.c b/arch/cris/arch-v32/mach-fs/arbiter.c
index 047c70bdbb23..c4750d97e46c 100644
--- a/arch/cris/arch-v32/mach-fs/arbiter.c
+++ b/arch/cris/arch-v32/mach-fs/arbiter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Memory arbiter functions. Allocates bandwidth through the
  * arbiter and sets up arbiter breakpoints.
diff --git a/arch/cris/arch-v32/mach-fs/dma.c b/arch/cris/arch-v32/mach-fs/dma.c
index 7c93679c02ad..c0347a4f8c65 100644
--- a/arch/cris/arch-v32/mach-fs/dma.c
+++ b/arch/cris/arch-v32/mach-fs/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Wrapper for DMA channel allocator that starts clocks etc */
 
 #include <linux/kernel.h>
diff --git a/arch/cris/arch-v32/mach-fs/dram_init.S b/arch/cris/arch-v32/mach-fs/dram_init.S
index 2ed51e247e8f..e1a01fa4c272 100644
--- a/arch/cris/arch-v32/mach-fs/dram_init.S
+++ b/arch/cris/arch-v32/mach-fs/dram_init.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * DRAM/SDRAM initialization - alter with care
  * This file is intended to be included from other assembler files
diff --git a/arch/cris/arch-v32/mach-fs/hw_settings.S b/arch/cris/arch-v32/mach-fs/hw_settings.S
index 8bde93c36214..7fbadcc48c0c 100644
--- a/arch/cris/arch-v32/mach-fs/hw_settings.S
+++ b/arch/cris/arch-v32/mach-fs/hw_settings.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This table is used by some tools to extract hardware parameters.
  * The table should be included in the kernel and the decompressor.
diff --git a/arch/cris/arch-v32/mach-fs/pinmux.c b/arch/cris/arch-v32/mach-fs/pinmux.c
index d8a3a3c439dd..a0b2f101003a 100644
--- a/arch/cris/arch-v32/mach-fs/pinmux.c
+++ b/arch/cris/arch-v32/mach-fs/pinmux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Allocator for I/O pins. All pins are allocated to GPIO at bootup.
  * Unassigned pins and GPIO pins can be allocated to a fixed interface
diff --git a/arch/cris/arch-v32/mm/init.c b/arch/cris/arch-v32/mm/init.c
index f5438ca8122d..784876afa001 100644
--- a/arch/cris/arch-v32/mm/init.c
+++ b/arch/cris/arch-v32/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Set up paging and the MMU.
  *
diff --git a/arch/cris/arch-v32/mm/intmem.c b/arch/cris/arch-v32/mm/intmem.c
index c80728401487..928b94d1d320 100644
--- a/arch/cris/arch-v32/mm/intmem.c
+++ b/arch/cris/arch-v32/mm/intmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simple allocator for internal RAM in ETRAX FS
  *
diff --git a/arch/cris/arch-v32/mm/l2cache.c b/arch/cris/arch-v32/mm/l2cache.c
index 332ff10dcc6b..4fef321d5606 100644
--- a/arch/cris/arch-v32/mm/l2cache.c
+++ b/arch/cris/arch-v32/mm/l2cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/string.h>
diff --git a/arch/cris/arch-v32/mm/mmu.S b/arch/cris/arch-v32/mm/mmu.S
index c0981044eccb..f24965703f6d 100644
--- a/arch/cris/arch-v32/mm/mmu.S
+++ b/arch/cris/arch-v32/mm/mmu.S
@@ -1,3 +1,4 @@
+; SPDX-License-Identifier: GPL-2.0
 ; WARNING : The refill handler has been modified, see below !!!
 
 /*
diff --git a/arch/cris/arch-v32/mm/tlb.c b/arch/cris/arch-v32/mm/tlb.c
index bc3de5b5e27c..9e4b5ab4971d 100644
--- a/arch/cris/arch-v32/mm/tlb.c
+++ b/arch/cris/arch-v32/mm/tlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Low level TLB handling.
  *
diff --git a/arch/cris/boot/Makefile b/arch/cris/boot/Makefile
index 6e3b509fd7fc..859d275f862b 100644
--- a/arch/cris/boot/Makefile
+++ b/arch/cris/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/cris/boot/Makefile
 #
diff --git a/arch/cris/boot/compressed/Makefile b/arch/cris/boot/compressed/Makefile
index e4ba0be0e782..e149c3467c93 100644
--- a/arch/cris/boot/compressed/Makefile
+++ b/arch/cris/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/cris/boot/compressed/Makefile
 #
diff --git a/arch/cris/boot/compressed/decompress_v10.lds b/arch/cris/boot/compressed/decompress_v10.lds
index e80f4594d543..d8326779dda2 100644
--- a/arch/cris/boot/compressed/decompress_v10.lds
+++ b/arch/cris/boot/compressed/decompress_v10.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* OUTPUT_FORMAT(elf32-us-cris) */
 OUTPUT_FORMAT(elf32-cris)
 
diff --git a/arch/cris/boot/compressed/decompress_v32.lds b/arch/cris/boot/compressed/decompress_v32.lds
index 3c837feca3ac..91d311c243ed 100644
--- a/arch/cris/boot/compressed/decompress_v32.lds
+++ b/arch/cris/boot/compressed/decompress_v32.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*#OUTPUT_FORMAT(elf32-us-cris) */
 OUTPUT_ARCH (crisv32)
 
diff --git a/arch/cris/boot/compressed/head_v10.S b/arch/cris/boot/compressed/head_v10.S
index 9edb8ade7e1f..08198d8cd37f 100644
--- a/arch/cris/boot/compressed/head_v10.S
+++ b/arch/cris/boot/compressed/head_v10.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/cris/boot/compressed/head.S
  *
diff --git a/arch/cris/boot/compressed/head_v32.S b/arch/cris/boot/compressed/head_v32.S
index f483005f3d48..a997947d31e3 100644
--- a/arch/cris/boot/compressed/head_v32.S
+++ b/arch/cris/boot/compressed/head_v32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Code that sets up the DRAM registers, calls the
  *  decompressor to unpack the piggybacked kernel, and jumps.
diff --git a/arch/cris/boot/compressed/misc.c b/arch/cris/boot/compressed/misc.c
index 548d886b03d3..1ad464a117b8 100644
--- a/arch/cris/boot/compressed/misc.c
+++ b/arch/cris/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c
  *
diff --git a/arch/cris/boot/dts/Makefile b/arch/cris/boot/dts/Makefile
index faf69fb9919f..3318c630caa2 100644
--- a/arch/cris/boot/dts/Makefile
+++ b/arch/cris/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_BUILTIN_DTB)).dtb.o
 ifneq ($(CONFIG_BUILTIN_DTB),"")
 obj-$(CONFIG_OF) += $(BUILTIN_DTB)
diff --git a/arch/cris/boot/dts/artpec3.dtsi b/arch/cris/boot/dts/artpec3.dtsi
index be15be67b653..f857300f4edd 100644
--- a/arch/cris/boot/dts/artpec3.dtsi
+++ b/arch/cris/boot/dts/artpec3.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/cris/boot/dts/dev88.dts b/arch/cris/boot/dts/dev88.dts
index b9a230d10874..415270ea5309 100644
--- a/arch/cris/boot/dts/dev88.dts
+++ b/arch/cris/boot/dts/dev88.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/cris/boot/dts/etraxfs.dtsi b/arch/cris/boot/dts/etraxfs.dtsi
index bf1b8582d4d8..4513edf72545 100644
--- a/arch/cris/boot/dts/etraxfs.dtsi
+++ b/arch/cris/boot/dts/etraxfs.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/cris/boot/dts/p1343.dts b/arch/cris/boot/dts/p1343.dts
index fab7bdbd0f15..6030561d4574 100644
--- a/arch/cris/boot/dts/p1343.dts
+++ b/arch/cris/boot/dts/p1343.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/cris/boot/rescue/Makefile b/arch/cris/boot/rescue/Makefile
index a82025940006..f73ac4c83b96 100644
--- a/arch/cris/boot/rescue/Makefile
+++ b/arch/cris/boot/rescue/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for rescue (bootstrap) code
 #
diff --git a/arch/cris/boot/rescue/head_v10.S b/arch/cris/boot/rescue/head_v10.S
index 1c05492f3eb2..11eedb1bf31a 100644
--- a/arch/cris/boot/rescue/head_v10.S
+++ b/arch/cris/boot/rescue/head_v10.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Rescue code, made to reside at the beginning of the
  * flash-memory. when it starts, it checks a partition
diff --git a/arch/cris/boot/rescue/head_v32.S b/arch/cris/boot/rescue/head_v32.S
index 5f846b7700a3..9eb04abaa0c0 100644
--- a/arch/cris/boot/rescue/head_v32.S
+++ b/arch/cris/boot/rescue/head_v32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Just get started by jumping to CONFIG_ETRAX_PTABLE_SECTOR to start
  * kernel decompressor.
diff --git a/arch/cris/boot/rescue/kimagerescue.S b/arch/cris/boot/rescue/kimagerescue.S
index 655b511fecf3..3306098dee15 100644
--- a/arch/cris/boot/rescue/kimagerescue.S
+++ b/arch/cris/boot/rescue/kimagerescue.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Rescue code to be prepended on a kimage and copied to the
  * rescue serial port.
diff --git a/arch/cris/boot/rescue/rescue_v10.lds b/arch/cris/boot/rescue/rescue_v10.lds
index 0b52a9490db6..e58a53f91728 100644
--- a/arch/cris/boot/rescue/rescue_v10.lds
+++ b/arch/cris/boot/rescue/rescue_v10.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 MEMORY 
 	{
 	flash : ORIGIN = 0x00000000,
diff --git a/arch/cris/boot/rescue/rescue_v32.lds b/arch/cris/boot/rescue/rescue_v32.lds
index 8ac646bc1a2b..f1542183f263 100644
--- a/arch/cris/boot/rescue/rescue_v32.lds
+++ b/arch/cris/boot/rescue/rescue_v32.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*#OUTPUT_FORMAT(elf32-us-cris) */
 OUTPUT_ARCH (crisv32)
 /* Now that NAND support has been stripped, this file could be simplified,
diff --git a/arch/cris/boot/rescue/testrescue.S b/arch/cris/boot/rescue/testrescue.S
index fc7ec674eca5..06f78a0b0622 100644
--- a/arch/cris/boot/rescue/testrescue.S
+++ b/arch/cris/boot/rescue/testrescue.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Simple testcode to download by the rescue block.
  * Just lights some LEDs to show it was downloaded correctly.
diff --git a/arch/cris/boot/tools/build.c b/arch/cris/boot/tools/build.c
index c8adef364160..3ae485049779 100644
--- a/arch/cris/boot/tools/build.c
+++ b/arch/cris/boot/tools/build.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/tools/build.c
  *
diff --git a/arch/cris/include/arch-v10/arch/bitops.h b/arch/cris/include/arch-v10/arch/bitops.h
index 03d9cfd92c8a..c18f81858899 100644
--- a/arch/cris/include/arch-v10/arch/bitops.h
+++ b/arch/cris/include/arch-v10/arch/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* asm/arch/bitops.h for Linux/CRISv10 */
 
 #ifndef _CRIS_ARCH_BITOPS_H
diff --git a/arch/cris/include/arch-v10/arch/bug.h b/arch/cris/include/arch-v10/arch/bug.h
index 3485d6b34bb0..905afeacfedf 100644
--- a/arch/cris/include/arch-v10/arch/bug.h
+++ b/arch/cris/include/arch-v10/arch/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRISv10_ARCH_BUG_H
 #define __ASM_CRISv10_ARCH_BUG_H
 
diff --git a/arch/cris/include/arch-v10/arch/cache.h b/arch/cris/include/arch-v10/arch/cache.h
index aea27184d2d2..d4049bcab3c5 100644
--- a/arch/cris/include/arch-v10/arch/cache.h
+++ b/arch/cris/include/arch-v10/arch/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_CACHE_H
 #define _ASM_ARCH_CACHE_H
 
diff --git a/arch/cris/include/arch-v10/arch/checksum.h b/arch/cris/include/arch-v10/arch/checksum.h
index d1d1bd9e1090..eb186be4fb32 100644
--- a/arch/cris/include/arch-v10/arch/checksum.h
+++ b/arch/cris/include/arch-v10/arch/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_CHECKSUM_H
 #define _CRIS_ARCH_CHECKSUM_H
 
diff --git a/arch/cris/include/arch-v10/arch/delay.h b/arch/cris/include/arch-v10/arch/delay.h
index 39481f6e0c30..a57d2cc0baf7 100644
--- a/arch/cris/include/arch-v10/arch/delay.h
+++ b/arch/cris/include/arch-v10/arch/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_DELAY_H
 #define _CRIS_ARCH_DELAY_H
 
diff --git a/arch/cris/include/arch-v10/arch/dma.h b/arch/cris/include/arch-v10/arch/dma.h
index ecb9dba6fa4f..ea794a32cf5e 100644
--- a/arch/cris/include/arch-v10/arch/dma.h
+++ b/arch/cris/include/arch-v10/arch/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Defines for using and allocating dma channels. */
 
 #ifndef _ASM_ARCH_DMA_H
diff --git a/arch/cris/include/arch-v10/arch/io.h b/arch/cris/include/arch-v10/arch/io.h
index 4a724172877f..bae5f77cfabc 100644
--- a/arch/cris/include/arch-v10/arch/io.h
+++ b/arch/cris/include/arch-v10/arch/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_CRIS_IO_H
 #define _ASM_ARCH_CRIS_IO_H
 
diff --git a/arch/cris/include/arch-v10/arch/io_interface_mux.h b/arch/cris/include/arch-v10/arch/io_interface_mux.h
index d92500080883..2d5617e67ab0 100644
--- a/arch/cris/include/arch-v10/arch/io_interface_mux.h
+++ b/arch/cris/include/arch-v10/arch/io_interface_mux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* IO interface mux allocator for ETRAX100LX.
  * Copyright 2004, Axis Communications AB
  * $Id: io_interface_mux.h,v 1.1 2004/12/13 12:21:53 starvik Exp $
diff --git a/arch/cris/include/arch-v10/arch/irq.h b/arch/cris/include/arch-v10/arch/irq.h
index 6aecb835037d..c4e8a78e33d1 100644
--- a/arch/cris/include/arch-v10/arch/irq.h
+++ b/arch/cris/include/arch-v10/arch/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Interrupt handling assembler and defines for Linux/CRISv10
  */
diff --git a/arch/cris/include/arch-v10/arch/irqflags.h b/arch/cris/include/arch-v10/arch/irqflags.h
index 75ef18991240..9959b0a8a58c 100644
--- a/arch/cris/include/arch-v10/arch/irqflags.h
+++ b/arch/cris/include/arch-v10/arch/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_ARCH_IRQFLAGS_H
 #define __ASM_CRIS_ARCH_IRQFLAGS_H
 
diff --git a/arch/cris/include/arch-v10/arch/memmap.h b/arch/cris/include/arch-v10/arch/memmap.h
index 13f3b971407f..b6b171f48b29 100644
--- a/arch/cris/include/arch-v10/arch/memmap.h
+++ b/arch/cris/include/arch-v10/arch/memmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_MEMMAP_H
 #define _ASM_ARCH_MEMMAP_H
 
diff --git a/arch/cris/include/arch-v10/arch/mmu.h b/arch/cris/include/arch-v10/arch/mmu.h
index 47a5dd21749d..74c53048be79 100644
--- a/arch/cris/include/arch-v10/arch/mmu.h
+++ b/arch/cris/include/arch-v10/arch/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CRIS MMU constants and PTE layout
  */
diff --git a/arch/cris/include/arch-v10/arch/offset.h b/arch/cris/include/arch-v10/arch/offset.h
index 675b51d85639..6f0f2b4a163f 100644
--- a/arch/cris/include/arch-v10/arch/offset.h
+++ b/arch/cris/include/arch-v10/arch/offset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_OFFSETS_H__
 #define __ASM_OFFSETS_H__
 /*
diff --git a/arch/cris/include/arch-v10/arch/page.h b/arch/cris/include/arch-v10/arch/page.h
index ffafc99c3472..a4bbff64868c 100644
--- a/arch/cris/include/arch-v10/arch/page.h
+++ b/arch/cris/include/arch-v10/arch/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_PAGE_H
 #define _CRIS_ARCH_PAGE_H
 
diff --git a/arch/cris/include/arch-v10/arch/pgtable.h b/arch/cris/include/arch-v10/arch/pgtable.h
index 2a2576d1fc97..a61532d06acb 100644
--- a/arch/cris/include/arch-v10/arch/pgtable.h
+++ b/arch/cris/include/arch-v10/arch/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_PGTABLE_H
 #define _CRIS_ARCH_PGTABLE_H
 
diff --git a/arch/cris/include/arch-v10/arch/processor.h b/arch/cris/include/arch-v10/arch/processor.h
index 93feb2a487d8..b2df646bc1eb 100644
--- a/arch/cris/include/arch-v10/arch/processor.h
+++ b/arch/cris/include/arch-v10/arch/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_ARCH_PROCESSOR_H
 #define __ASM_CRIS_ARCH_PROCESSOR_H
 
diff --git a/arch/cris/include/arch-v10/arch/swab.h b/arch/cris/include/arch-v10/arch/swab.h
index e4e847d8a05e..8cc27dfb9d3a 100644
--- a/arch/cris/include/arch-v10/arch/swab.h
+++ b/arch/cris/include/arch-v10/arch/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_SWAB_H
 #define _CRIS_ARCH_SWAB_H
 
diff --git a/arch/cris/include/arch-v10/arch/system.h b/arch/cris/include/arch-v10/arch/system.h
index 9b5580f58b96..4c63f728122b 100644
--- a/arch/cris/include/arch-v10/arch/system.h
+++ b/arch/cris/include/arch-v10/arch/system.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_ARCH_SYSTEM_H
 #define __ASM_CRIS_ARCH_SYSTEM_H
 
diff --git a/arch/cris/include/arch-v10/arch/thread_info.h b/arch/cris/include/arch-v10/arch/thread_info.h
index 218f4152d3e5..0ef1223998c1 100644
--- a/arch/cris/include/arch-v10/arch/thread_info.h
+++ b/arch/cris/include/arch-v10/arch/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_THREAD_INFO_H
 #define _ASM_ARCH_THREAD_INFO_H
 
diff --git a/arch/cris/include/arch-v10/arch/timex.h b/arch/cris/include/arch-v10/arch/timex.h
index e48447d94faf..9c9583e5aed6 100644
--- a/arch/cris/include/arch-v10/arch/timex.h
+++ b/arch/cris/include/arch-v10/arch/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Use prescale timer at 25000 Hz instead of the baudrate timer at 
  * 19200 to get rid of the 64ppm to fast timer (and we get better 
diff --git a/arch/cris/include/arch-v10/arch/tlb.h b/arch/cris/include/arch-v10/arch/tlb.h
index 31525bbe75c3..9f039d83f21b 100644
--- a/arch/cris/include/arch-v10/arch/tlb.h
+++ b/arch/cris/include/arch-v10/arch/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_TLB_H
 #define _CRIS_ARCH_TLB_H
 
diff --git a/arch/cris/include/arch-v10/arch/uaccess.h b/arch/cris/include/arch-v10/arch/uaccess.h
index 5477c98c2281..8d033c534f1f 100644
--- a/arch/cris/include/arch-v10/arch/uaccess.h
+++ b/arch/cris/include/arch-v10/arch/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * Authors:    Bjorn Wesen (bjornw@axis.com)
  *	       Hans-Peter Nilsson (hp@axis.com)
diff --git a/arch/cris/include/arch-v10/arch/unistd.h b/arch/cris/include/arch-v10/arch/unistd.h
index d1a38b9e6264..03cd0b8652f4 100644
--- a/arch/cris/include/arch-v10/arch/unistd.h
+++ b/arch/cris/include/arch-v10/arch/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_UNISTD_H_
 #define _ASM_CRIS_ARCH_UNISTD_H_
 
diff --git a/arch/cris/include/arch-v32/arch/bitops.h b/arch/cris/include/arch-v32/arch/bitops.h
index 147689d6b624..7df94798f063 100644
--- a/arch/cris/include/arch-v32/arch/bitops.h
+++ b/arch/cris/include/arch-v32/arch/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_BITOPS_H
 #define _ASM_CRIS_ARCH_BITOPS_H
 
diff --git a/arch/cris/include/arch-v32/arch/bug.h b/arch/cris/include/arch-v32/arch/bug.h
index fb59faaaae0a..982c6b08fdf1 100644
--- a/arch/cris/include/arch-v32/arch/bug.h
+++ b/arch/cris/include/arch-v32/arch/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRISv32_ARCH_BUG_H
 #define __ASM_CRISv32_ARCH_BUG_H
 
diff --git a/arch/cris/include/arch-v32/arch/cache.h b/arch/cris/include/arch-v32/arch/cache.h
index 7caf25d58e6b..f61f3088c45b 100644
--- a/arch/cris/include/arch-v32/arch/cache.h
+++ b/arch/cris/include/arch-v32/arch/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_CACHE_H
 #define _ASM_CRIS_ARCH_CACHE_H
 
diff --git a/arch/cris/include/arch-v32/arch/checksum.h b/arch/cris/include/arch-v32/arch/checksum.h
index 65cf205b1329..fea1341ef244 100644
--- a/arch/cris/include/arch-v32/arch/checksum.h
+++ b/arch/cris/include/arch-v32/arch/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_CHECKSUM_H
 #define _ASM_CRIS_ARCH_CHECKSUM_H
 
diff --git a/arch/cris/include/arch-v32/arch/cryptocop.h b/arch/cris/include/arch-v32/arch/cryptocop.h
index a56ac61a9931..f2f8eda1ffb1 100644
--- a/arch/cris/include/arch-v32/arch/cryptocop.h
+++ b/arch/cris/include/arch-v32/arch/cryptocop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The device /dev/cryptocop is accessible using this driver using
  * CRYPTOCOP_MAJOR (254) and minor number 0.
diff --git a/arch/cris/include/arch-v32/arch/delay.h b/arch/cris/include/arch-v32/arch/delay.h
index e9fda03810a9..94307c1fbb1c 100644
--- a/arch/cris/include/arch-v32/arch/delay.h
+++ b/arch/cris/include/arch-v32/arch/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_DELAY_H
 #define _ASM_CRIS_ARCH_DELAY_H
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/Makefile b/arch/cris/include/arch-v32/arch/hwregs/Makefile
index b8b3f8d666e4..bb5ffa7ff9f4 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/Makefile
+++ b/arch/cris/include/arch-v32/arch/hwregs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile to generate or copy the latest register definitions
 # and related datastructures and helpermacros.
 # The official place for these files is at:
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/ata_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/ata_defs_asm.h
index 866191418f9c..6886ba3c2d53 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/ata_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/ata_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ata_defs_asm_h
 #define __ata_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/bif_core_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/bif_core_defs_asm.h
index c686cb335621..1d75d8c31cc0 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/bif_core_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/bif_core_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_core_defs_asm_h
 #define __bif_core_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/bif_dma_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/bif_dma_defs_asm.h
index 71532aa18168..a07447fa75f8 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/bif_dma_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/bif_dma_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_dma_defs_asm_h
 #define __bif_dma_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/bif_slave_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/bif_slave_defs_asm.h
index 031f33a365bb..55697fec603e 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/bif_slave_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/bif_slave_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_slave_defs_asm_h
 #define __bif_slave_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/config_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/config_defs_asm.h
index e98476332e1f..6455b4897bcc 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/config_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/config_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __config_defs_asm_h
 #define __config_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/cris_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/cris_defs_asm.h
index 7f768db272e2..bd048296d2f8 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/cris_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/cris_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __cris_defs_asm_h
 #define __cris_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/cris_supp_reg.h b/arch/cris/include/arch-v32/arch/hwregs/asm/cris_supp_reg.h
index 7d3689a6f80d..429fe0d4ffe4 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/cris_supp_reg.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/cris_supp_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define RW_GC_CFG	0
 #define RW_GC_CCS	1
 #define RW_GC_SRS	2
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/dma_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/dma_defs_asm.h
index 0cb71bc127ae..fec451d2a3db 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/dma_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/dma_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __dma_defs_asm_h
 #define __dma_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/eth_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/eth_defs_asm.h
index c9f49864831b..97fe523d4d72 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/eth_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/eth_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __eth_defs_asm_h
 #define __eth_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/gio_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/gio_defs_asm.h
index 35356bc08629..41bc2f83795c 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/gio_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/gio_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __gio_defs_asm_h
 #define __gio_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect.h b/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect.h
index c8315905c571..e371052fa1bc 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Interrupt vector numbers autogenerated by /n/asic/design/tools/rdesc/src/rdes2intr version
  from ../../inst/intr_vect/rtl/guinness/ivmask.config.r
 version . */
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect_defs_asm.h
index 6df2a433b02d..8d0c788b286b 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/intr_vect_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __intr_vect_defs_asm_h
 #define __intr_vect_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/irq_nmi_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/irq_nmi_defs_asm.h
index 0c8084054840..f624468346af 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/irq_nmi_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/irq_nmi_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __irq_nmi_defs_asm_h
 #define __irq_nmi_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/marb_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/marb_defs_asm.h
index 45400eb8d389..6a5ce2141860 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/marb_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/marb_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_defs_asm_h
 #define __marb_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_defs_asm.h
index 505b7a16d878..083174678961 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __mmu_defs_asm_h
 #define __mmu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_supp_reg.h b/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_supp_reg.h
index 339500bf3bc0..fd66daa79259 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_supp_reg.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/mmu_supp_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define RW_MM_CFG	0
 #define RW_MM_KBASE_LO	1
 #define RW_MM_KBASE_HI	2
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/rt_trace_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/rt_trace_defs_asm.h
index 10246f49fb28..72b3d231d80f 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/rt_trace_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/rt_trace_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __rt_trace_defs_asm_h
 #define __rt_trace_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/ser_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/ser_defs_asm.h
index 4a2808bdf390..944f4c7666b4 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/ser_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/ser_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ser_defs_asm_h
 #define __ser_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/sser_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/sser_defs_asm.h
index 27d4d91b3abd..607b505100fa 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/sser_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/sser_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __sser_defs_asm_h
 #define __sser_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/strcop_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/strcop_defs_asm.h
index 55083e6aec93..fab117b00ab6 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/strcop_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/strcop_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __strcop_defs_asm_h
 #define __strcop_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/strmux_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/strmux_defs_asm.h
index 69b299920f71..73755fa8a526 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/strmux_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/strmux_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __strmux_defs_asm_h
 #define __strmux_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/asm/timer_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/asm/timer_defs_asm.h
index 43146021fc16..cc67986d7437 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/asm/timer_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/asm/timer_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __timer_defs_asm_h
 #define __timer_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/ata_defs.h b/arch/cris/include/arch-v32/arch/hwregs/ata_defs.h
index 43b6643ff0d3..2a8adbcf75d8 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/ata_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/ata_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ata_defs_h
 #define __ata_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/bif_core_defs.h b/arch/cris/include/arch-v32/arch/hwregs/bif_core_defs.h
index a56608b50359..054841c45466 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/bif_core_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/bif_core_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_core_defs_h
 #define __bif_core_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/bif_dma_defs.h b/arch/cris/include/arch-v32/arch/hwregs/bif_dma_defs.h
index b931c1aab679..5c4abf5c0167 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/bif_dma_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/bif_dma_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_dma_defs_h
 #define __bif_dma_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/bif_slave_defs.h b/arch/cris/include/arch-v32/arch/hwregs/bif_slave_defs.h
index d18fc3c9f569..80c740b3c785 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/bif_slave_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/bif_slave_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_slave_defs_h
 #define __bif_slave_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/config_defs.h b/arch/cris/include/arch-v32/arch/hwregs/config_defs.h
index 45457a4e3817..1c5da14f27f3 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/config_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/config_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __config_defs_h
 #define __config_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/cpu_vect.h b/arch/cris/include/arch-v32/arch/hwregs/cpu_vect.h
index 8370aee8a14a..913f918bba14 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/cpu_vect.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/cpu_vect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Interrupt vector numbers autogenerated by /n/asic/design/tools/rdesc/src/rdes2intr version
  from ../../inst/crisp/doc/cpu_vect.r
 version . */
diff --git a/arch/cris/include/arch-v32/arch/hwregs/dma.h b/arch/cris/include/arch-v32/arch/hwregs/dma.h
index 52bf67907f28..dd24c6da09e0 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/dma.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * DMA C definitions and help macros
  *
diff --git a/arch/cris/include/arch-v32/arch/hwregs/dma_defs.h b/arch/cris/include/arch-v32/arch/hwregs/dma_defs.h
index 48ac8cef7ebe..a67826f5fe21 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/dma_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/dma_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __dma_defs_h
 #define __dma_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/eth_defs.h b/arch/cris/include/arch-v32/arch/hwregs/eth_defs.h
index 90fe8a28894f..d8021b44e5e6 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/eth_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/eth_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __eth_defs_h
 #define __eth_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/extmem_defs.h b/arch/cris/include/arch-v32/arch/hwregs/extmem_defs.h
index c47b5ca48ece..5937ed7a5228 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/extmem_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/extmem_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __extmem_defs_h
 #define __extmem_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile b/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile
index 0747a22e3c07..1b9467ae65c1 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # $Id: Makefile,v 1.3 2004/01/07 20:34:55 johana Exp $
 # Makefile to generate or copy the latest register definitions
 # and related datastructures and helpermacros.
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_crc_par_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_crc_par_defs_asm.h
index a4b58000c164..10443d789a66 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_crc_par_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_crc_par_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_crc_par_defs_asm_h
 #define __iop_crc_par_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_in_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_in_defs_asm.h
index e7d539feccb1..fdee9bbe1fd4 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_in_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_in_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_dmc_in_defs_asm_h
 #define __iop_dmc_in_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_out_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_out_defs_asm.h
index 9fe1a8054371..a97b741bd36a 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_out_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_dmc_out_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_dmc_out_defs_asm_h
 #define __iop_dmc_out_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_defs_asm.h
index 974dee082f9f..e2c0990246f2 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_in_defs_asm_h
 #define __iop_fifo_in_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h
index e00fab0c9335..50837b989c90 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_in_extra_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_in_extra_defs_asm_h
 #define __iop_fifo_in_extra_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_defs_asm.h
index 9ec5f4a826df..9f06dddf33a0 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_out_defs_asm_h
 #define __iop_fifo_out_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h
index 0f84a50cf77c..e8c488c389e4 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_fifo_out_extra_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_out_extra_defs_asm_h
 #define __iop_fifo_out_extra_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_mpu_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_mpu_defs_asm.h
index 80490c82cc29..48869d445e07 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_mpu_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_mpu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_mpu_defs_asm_h
 #define __iop_mpu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_reg_space_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_reg_space_asm.h
index a20b8857b4d0..615f869a6de9 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_reg_space_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_reg_space_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Autogenerated Changes here will be lost!
  * generated by ../gen_sw.pl Mon Apr 11 16:10:18 2005 iop_sw.cfg
  */
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_in_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_in_defs_asm.h
index a4a10ff300b3..fe8c90e015b0 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_in_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_in_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_in_defs_asm_h
 #define __iop_sap_in_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_out_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_out_defs_asm.h
index 0ec727f92a25..a5e46f0bbf6f 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_out_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sap_out_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_out_defs_asm_h
 #define __iop_sap_out_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_in_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_in_defs_asm.h
index 2cf5721597fc..169aaf8d44b2 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_in_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_in_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_scrc_in_defs_asm_h
 #define __iop_scrc_in_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_out_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_out_defs_asm.h
index 640a25725f20..0e9bca149bc6 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_out_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_scrc_out_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_scrc_out_defs_asm_h
 #define __iop_scrc_out_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_spu_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_spu_defs_asm.h
index bb402c1aa761..cf2b64a9d42c 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_spu_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_spu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_spu_defs_asm_h
 #define __iop_spu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cfg_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
index 3be60f9b024c..4f4c7340d39a 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cfg_defs_asm_h
 #define __iop_sw_cfg_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cpu_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
index db347bcba025..ef04a57a0680 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cpu_defs_asm_h
 #define __iop_sw_cpu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_mpu_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
index ee7dc0435b59..22292069e4fd 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_mpu_defs_asm_h
 #define __iop_sw_mpu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_spu_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_spu_defs_asm.h
index 0929f144cfa1..82729218621c 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_spu_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_sw_spu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_spu_defs_asm_h
 #define __iop_sw_spu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_timer_grp_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_timer_grp_defs_asm.h
index 7129a9a4bedc..4f1cf73d86cd 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_timer_grp_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_timer_grp_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_timer_grp_defs_asm_h
 #define __iop_timer_grp_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_trigger_grp_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_trigger_grp_defs_asm.h
index 1005d9db80dc..7bc882c62952 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_trigger_grp_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_trigger_grp_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_trigger_grp_defs_asm_h
 #define __iop_trigger_grp_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_version_defs_asm.h b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_version_defs_asm.h
index e13feb20a7e3..2e239957e34a 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_version_defs_asm.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/asm/iop_version_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_version_defs_asm_h
 #define __iop_version_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_crc_par_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_crc_par_defs.h
index 90e4785b6474..8690034d9bec 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_crc_par_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_crc_par_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_crc_par_defs_h
 #define __iop_crc_par_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_in_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_in_defs.h
index 76aec6e37f3e..3dd4e870a3a5 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_in_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_in_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_dmc_in_defs_h
 #define __iop_dmc_in_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_out_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_out_defs.h
index 938a0d4c4604..7ed17bc553c3 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_out_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_dmc_out_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_dmc_out_defs_h
 #define __iop_dmc_out_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_defs.h
index e0c982b263fa..dc14868680e6 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_in_defs_h
 #define __iop_fifo_in_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_extra_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_extra_defs.h
index 798ac95870e9..ee7dc07a7862 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_extra_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_in_extra_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_in_extra_defs_h
 #define __iop_fifo_in_extra_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_defs.h
index 833e10f02526..ee8194fcfa82 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_out_defs_h
 #define __iop_fifo_out_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_extra_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_extra_defs.h
index 4a840aae84ee..b9721649f6fd 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_extra_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_fifo_out_extra_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_fifo_out_extra_defs_h
 #define __iop_fifo_out_extra_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_defs.h
index c2b0ba1be60f..28e1c5903677 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_mpu_defs_h
 #define __iop_mpu_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_macros.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_macros.h
index 2ec897ced166..41f5178a65b8 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_macros.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_mpu_macros.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ************************************************************************* */
 /* This file is autogenerated by IOPASM Version 1.2                          */
 /* DO NOT EDIT THIS FILE - All changes will be lost!                         */
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_reg_space.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_reg_space.h
index 756550f5d6cb..95e9ce8c042a 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_reg_space.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_reg_space.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Autogenerated Changes here will be lost!
  * generated by ../gen_sw.pl Mon Apr 11 16:10:18 2005 iop_sw.cfg
  */
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_in_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_in_defs.h
index 5548ac10074f..22a74eafb8b0 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_in_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_in_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_in_defs_h
 #define __iop_sap_in_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_out_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_out_defs.h
index 273936996183..380133910105 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_out_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sap_out_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_out_defs_h
 #define __iop_sap_out_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_in_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_in_defs.h
index 4f0a9a81e737..65d662046ca9 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_in_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_in_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_scrc_in_defs_h
 #define __iop_scrc_in_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_out_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_out_defs.h
index fd1d6ea1d484..ba39605b9737 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_out_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_scrc_out_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_scrc_out_defs_h
 #define __iop_scrc_out_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_spu_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_spu_defs.h
index 0fda26e2f06f..7681fdab93fc 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_spu_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_spu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_spu_defs_h
 #define __iop_spu_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cfg_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cfg_defs.h
index d7b6d75884d2..86e5c9b3e593 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cfg_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cfg_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cfg_defs_h
 #define __iop_sw_cfg_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cpu_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cpu_defs.h
index 5fed844b19e2..31055d3fcd76 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cpu_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_cpu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cpu_defs_h
 #define __iop_sw_cpu_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_mpu_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_mpu_defs.h
index da718f2a8cad..5038c08e8a95 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_mpu_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_mpu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_mpu_defs_h
 #define __iop_sw_mpu_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_spu_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_spu_defs.h
index b59dde4bd0d1..aeebd57af7f7 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_spu_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_sw_spu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_spu_defs_h
 #define __iop_sw_spu_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_timer_grp_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_timer_grp_defs.h
index c994114f3b51..b4095422adf6 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_timer_grp_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_timer_grp_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_timer_grp_defs_h
 #define __iop_timer_grp_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_trigger_grp_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_trigger_grp_defs.h
index 36e44282399d..aff694506e7f 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_trigger_grp_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_trigger_grp_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_trigger_grp_defs_h
 #define __iop_trigger_grp_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_version_defs.h b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_version_defs.h
index b8d6a910c71c..53a4b8cda969 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/iop/iop_version_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/iop/iop_version_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_version_defs_h
 #define __iop_version_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/irq_nmi_defs.h b/arch/cris/include/arch-v32/arch/hwregs/irq_nmi_defs.h
index 7b167e3c0572..63b20dee2fd1 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/irq_nmi_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/irq_nmi_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __irq_nmi_defs_h
 #define __irq_nmi_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/marb_bp_defs.h b/arch/cris/include/arch-v32/arch/hwregs/marb_bp_defs.h
index a11fdd3cd907..da29a8a22250 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/marb_bp_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/marb_bp_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_bp_defs_h
 #define __marb_bp_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/marb_defs.h b/arch/cris/include/arch-v32/arch/hwregs/marb_defs.h
index 71e8af0bb3a4..2858de48a5e0 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/marb_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/marb_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_defs_h
 #define __marb_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/reg_rdwr.h b/arch/cris/include/arch-v32/arch/hwregs/reg_rdwr.h
index 236f91efe7e8..8fabdd211507 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/reg_rdwr.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/reg_rdwr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Read/write register macros used by *_defs.h
  */
diff --git a/arch/cris/include/arch-v32/arch/hwregs/rt_trace_defs.h b/arch/cris/include/arch-v32/arch/hwregs/rt_trace_defs.h
index d9f0e924fb23..ebb6bbc6e778 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/rt_trace_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/rt_trace_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __rt_trace_defs_h
 #define __rt_trace_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/ser_defs.h b/arch/cris/include/arch-v32/arch/hwregs/ser_defs.h
index 01c2fab97d43..3b04cf9012cf 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/ser_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/ser_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ser_defs_h
 #define __ser_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/sser_defs.h b/arch/cris/include/arch-v32/arch/hwregs/sser_defs.h
index 8d1dab218b91..02971f9b6558 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/sser_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/sser_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __sser_defs_h
 #define __sser_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/strcop.h b/arch/cris/include/arch-v32/arch/hwregs/strcop.h
index 35131ba466f3..2c522b024ee7 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/strcop.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/strcop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 // $Id: strcop.h,v 1.3 2003/10/22 13:27:12 henriken Exp $
 
 // Streamcop meta-data configuration structs
diff --git a/arch/cris/include/arch-v32/arch/hwregs/strcop_defs.h b/arch/cris/include/arch-v32/arch/hwregs/strcop_defs.h
index bd145a49b2c4..069b2ed9def5 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/strcop_defs.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/strcop_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __strcop_defs_h
 #define __strcop_defs_h
 
diff --git a/arch/cris/include/arch-v32/arch/hwregs/supp_reg.h b/arch/cris/include/arch-v32/arch/hwregs/supp_reg.h
index ffe49625ae36..c3fa0c06c558 100644
--- a/arch/cris/include/arch-v32/arch/hwregs/supp_reg.h
+++ b/arch/cris/include/arch-v32/arch/hwregs/supp_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUPP_REG_H__
 #define __SUPP_REG_H__
 
diff --git a/arch/cris/include/arch-v32/arch/intmem.h b/arch/cris/include/arch-v32/arch/intmem.h
index c0ada33bf90f..2bcb21c9b25f 100644
--- a/arch/cris/include/arch-v32/arch/intmem.h
+++ b/arch/cris/include/arch-v32/arch/intmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_INTMEM_H
 #define _ASM_CRIS_INTMEM_H
 
diff --git a/arch/cris/include/arch-v32/arch/irq.h b/arch/cris/include/arch-v32/arch/irq.h
index 8270a1bbfdb6..5259084001d4 100644
--- a/arch/cris/include/arch-v32/arch/irq.h
+++ b/arch/cris/include/arch-v32/arch/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_IRQ_H
 #define _ASM_ARCH_IRQ_H
 
diff --git a/arch/cris/include/arch-v32/arch/irqflags.h b/arch/cris/include/arch-v32/arch/irqflags.h
index 5f6fddf99509..d55bf82de77c 100644
--- a/arch/cris/include/arch-v32/arch/irqflags.h
+++ b/arch/cris/include/arch-v32/arch/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_ARCH_IRQFLAGS_H
 #define __ASM_CRIS_ARCH_IRQFLAGS_H
 
diff --git a/arch/cris/include/arch-v32/arch/mmu.h b/arch/cris/include/arch-v32/arch/mmu.h
index e6db1616dee5..a8eec1312de0 100644
--- a/arch/cris/include/arch-v32/arch/mmu.h
+++ b/arch/cris/include/arch-v32/arch/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_MMU_H
 #define _ASM_CRIS_ARCH_MMU_H
 
diff --git a/arch/cris/include/arch-v32/arch/offset.h b/arch/cris/include/arch-v32/arch/offset.h
index 4442c4bd52f4..10a670443386 100644
--- a/arch/cris/include/arch-v32/arch/offset.h
+++ b/arch/cris/include/arch-v32/arch/offset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_OFFSETS_H__
 #define __ASM_OFFSETS_H__
 /*
diff --git a/arch/cris/include/arch-v32/arch/page.h b/arch/cris/include/arch-v32/arch/page.h
index e5b5aab52de8..7ac04f615193 100644
--- a/arch/cris/include/arch-v32/arch/page.h
+++ b/arch/cris/include/arch-v32/arch/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_PAGE_H
 #define _ASM_CRIS_ARCH_PAGE_H
 
diff --git a/arch/cris/include/arch-v32/arch/pgtable.h b/arch/cris/include/arch-v32/arch/pgtable.h
index c1051a8da33d..e787b19b700e 100644
--- a/arch/cris/include/arch-v32/arch/pgtable.h
+++ b/arch/cris/include/arch-v32/arch/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_PGTABLE_H
 #define _ASM_CRIS_ARCH_PGTABLE_H
 
diff --git a/arch/cris/include/arch-v32/arch/processor.h b/arch/cris/include/arch-v32/arch/processor.h
index 568759271ab5..554088ab5f01 100644
--- a/arch/cris/include/arch-v32/arch/processor.h
+++ b/arch/cris/include/arch-v32/arch/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_PROCESSOR_H
 #define _ASM_CRIS_ARCH_PROCESSOR_H
 
diff --git a/arch/cris/include/arch-v32/arch/swab.h b/arch/cris/include/arch-v32/arch/swab.h
index 9a4ea5e209c2..280dd7093e4f 100644
--- a/arch/cris/include/arch-v32/arch/swab.h
+++ b/arch/cris/include/arch-v32/arch/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_SWAB_H
 #define _ASM_CRIS_ARCH_SWAB_H
 
diff --git a/arch/cris/include/arch-v32/arch/system.h b/arch/cris/include/arch-v32/arch/system.h
index db853fb3a458..84f00e5d4652 100644
--- a/arch/cris/include/arch-v32/arch/system.h
+++ b/arch/cris/include/arch-v32/arch/system.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_SYSTEM_H
 #define _ASM_CRIS_ARCH_SYSTEM_H
 
diff --git a/arch/cris/include/arch-v32/arch/thread_info.h b/arch/cris/include/arch-v32/arch/thread_info.h
index d6936956a3c6..8514669e5fab 100644
--- a/arch/cris/include/arch-v32/arch/thread_info.h
+++ b/arch/cris/include/arch-v32/arch/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_THREAD_INFO_H
 #define _ASM_CRIS_ARCH_THREAD_INFO_H
 
diff --git a/arch/cris/include/arch-v32/arch/timex.h b/arch/cris/include/arch-v32/arch/timex.h
index 2591d3c5ed9d..2cd8e704a73b 100644
--- a/arch/cris/include/arch-v32/arch/timex.h
+++ b/arch/cris/include/arch-v32/arch/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_TIMEX_H
 #define _ASM_CRIS_ARCH_TIMEX_H
 
diff --git a/arch/cris/include/arch-v32/arch/tlb.h b/arch/cris/include/arch-v32/arch/tlb.h
index 4effb1253660..50452802738f 100644
--- a/arch/cris/include/arch-v32/arch/tlb.h
+++ b/arch/cris/include/arch-v32/arch/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_ARCH_TLB_H
 #define _CRIS_ARCH_TLB_H
 
diff --git a/arch/cris/include/arch-v32/arch/uaccess.h b/arch/cris/include/arch-v32/arch/uaccess.h
index dc2ce090f624..214bd26efcd9 100644
--- a/arch/cris/include/arch-v32/arch/uaccess.h
+++ b/arch/cris/include/arch-v32/arch/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Authors:    Hans-Peter Nilsson (hp@axis.com)
  *
diff --git a/arch/cris/include/arch-v32/arch/unistd.h b/arch/cris/include/arch-v32/arch/unistd.h
index 0051114c63c7..764435b3b28e 100644
--- a/arch/cris/include/arch-v32/arch/unistd.h
+++ b/arch/cris/include/arch-v32/arch/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_UNISTD_H_
 #define _ASM_CRIS_ARCH_UNISTD_H_
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/arbiter.h b/arch/cris/include/arch-v32/mach-a3/mach/arbiter.h
index 65e9d6ff0520..7fafc370def2 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/arbiter.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/arbiter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_ARBITER_H
 #define _ASM_CRIS_ARCH_ARBITER_H
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/dma.h b/arch/cris/include/arch-v32/mach-a3/mach/dma.h
index f01dca1ad108..92a74eab4395 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/dma.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_CRIS_DMA_H
 #define _ASM_ARCH_CRIS_DMA_H
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/clkgen_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/clkgen_defs_asm.h
index 02855adf63e8..3d7f12ec1c54 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/clkgen_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/clkgen_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __clkgen_defs_asm_h
 #define __clkgen_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/ddr2_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/ddr2_defs_asm.h
index b12be03edacb..df79e5a7f02a 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/ddr2_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/ddr2_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ddr2_defs_asm_h
 #define __ddr2_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/gio_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/gio_defs_asm.h
index df6714fda179..04b7ff3f70a2 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/gio_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/gio_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __gio_defs_asm_h
 #define __gio_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pinmux_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pinmux_defs_asm.h
index c3dc9c666c46..a73168a8e93a 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pinmux_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pinmux_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __pinmux_defs_asm_h
 #define __pinmux_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pio_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pio_defs_asm.h
index 3907ef4921c8..463bb9e2c38e 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pio_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/pio_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __pio_defs_asm_h
 #define __pio_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/reg_map_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/reg_map_asm.h
index 89439e9610e2..e3bf8e0692a6 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/reg_map_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/reg_map_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __reg_map_asm_h
 #define __reg_map_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/timer_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/timer_defs_asm.h
index b129e826fc34..82da59c382c2 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/timer_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/asm/timer_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __timer_defs_asm_h
 #define __timer_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/clkgen_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/clkgen_defs.h
index c1e9ba93b3a3..32d58fed3b03 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/clkgen_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/clkgen_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __clkgen_defs_h
 #define __clkgen_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/ddr2_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/ddr2_defs.h
index 0f30e8bf946d..84684c335d7d 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/ddr2_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/ddr2_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ddr2_defs_h
 #define __ddr2_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/gio_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/gio_defs.h
index 5d88e0db23ae..83ab1f495612 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/gio_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/gio_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __gio_defs_h
 #define __gio_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect.h
index bea699aa480e..55dab5bd7bd3 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Interrupt vector numbers autogenerated by ../../../tools/rdesc/bin/rdes2intr 
    from intr_vect.r */
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect_defs.h
index b820f6347c74..71a28d1ed74a 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/intr_vect_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __intr_vect_defs_h
 #define __intr_vect_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_reg_space_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_reg_space_asm.h
index d75a74e90458..5e5f4d94aecf 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_reg_space_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_reg_space_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Autogenerated Changes here will be lost!
  * generated by ./gen_sw.pl Wed Feb 14 09:27:48 2007 iop_sw.cfg 
  */
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_in_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_in_defs_asm.h
index 7f90b5a0460d..ee0587ec433c 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_in_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_in_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_in_defs_asm_h
 #define __iop_sap_in_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_out_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_out_defs_asm.h
index 399bd656406b..9bbe0b920c93 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_out_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sap_out_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_out_defs_asm_h
 #define __iop_sap_out_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cfg_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
index 3b3949b51a66..c4b8bc386cb6 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cfg_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cfg_defs_asm_h
 #define __iop_sw_cfg_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cpu_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
index 3f4fe1b31815..89f36dc1f96d 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_cpu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cpu_defs_asm_h
 #define __iop_sw_cpu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_mpu_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
index ffcc83b22d21..45e19d79dba9 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_mpu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_mpu_defs_asm_h
 #define __iop_sw_mpu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_spu_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_spu_defs_asm.h
index 67a745338087..55afb6e320e4 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_spu_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_sw_spu_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_spu_defs_asm_h
 #define __iop_sw_spu_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_version_defs_asm.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_version_defs_asm.h
index 4ad671202af0..79ff8fafd3bf 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_version_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/asm/iop_version_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_version_defs_asm_h
 #define __iop_version_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_reg_space.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_reg_space.h
index af3196c60a46..23d731f36145 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_reg_space.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_reg_space.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Autogenerated Changes here will be lost!
  * generated by ./gen_sw.pl Wed Feb 14 09:27:48 2007 iop_sw.cfg 
  */
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_in_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_in_defs.h
index 51dde016c03a..1d6c09a3230d 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_in_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_in_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_in_defs_h
 #define __iop_sap_in_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_out_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_out_defs.h
index 5af88baa2ac1..1cbd30efadb7 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_out_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sap_out_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sap_out_defs_h
 #define __iop_sap_out_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cfg_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cfg_defs.h
index 98ac95275a1c..07050b053bb4 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cfg_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cfg_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cfg_defs_h
 #define __iop_sw_cfg_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cpu_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cpu_defs.h
index a16f556370eb..b4acdae4f653 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cpu_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_cpu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_cpu_defs_h
 #define __iop_sw_cpu_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_mpu_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_mpu_defs.h
index a2e4e1a33e57..bc1abb5fb308 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_mpu_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_mpu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_mpu_defs_h
 #define __iop_sw_mpu_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_spu_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_spu_defs.h
index c8560b865a1a..82b64360a4d3 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_spu_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_sw_spu_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_sw_spu_defs_h
 #define __iop_sw_spu_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_version_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_version_defs.h
index 20de425e652b..d944c6ce5f9b 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_version_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/iop/iop_version_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __iop_version_defs_h
 #define __iop_version_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/l2cache_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/l2cache_defs.h
index 243ac3c882cb..5c72116f1067 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/l2cache_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/l2cache_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __l2cache_defs_h
 #define __l2cache_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_bar_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_bar_defs.h
index c0e7628cbf7d..84f68755a75c 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_bar_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_bar_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_bar_defs_h
 #define __marb_bar_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_foo_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_foo_defs.h
index 2baa833f109a..13539bc5d613 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_foo_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/marb_foo_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_foo_defs_h
 #define __marb_foo_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pinmux_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pinmux_defs.h
index 4b96cd2cba8a..d604042a52bf 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pinmux_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pinmux_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __pinmux_defs_h
 #define __pinmux_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pio_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pio_defs.h
index 2d8e4b4cc602..348e39f419e0 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pio_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/pio_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __pio_defs_h
 #define __pio_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/reg_map.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/reg_map.h
index 36e59d6e96b6..04ef87d42513 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/reg_map.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/reg_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __reg_map_h
 #define __reg_map_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/strmux_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/strmux_defs.h
index 14f718a4ecc3..a19955fa8d94 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/strmux_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/strmux_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __strmux_defs_h
 #define __strmux_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/timer_defs.h b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/timer_defs.h
index 2c33e097d60a..de849a6362f6 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/hwregs/timer_defs.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/hwregs/timer_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __timer_defs_h
 #define __timer_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/memmap.h b/arch/cris/include/arch-v32/mach-a3/mach/memmap.h
index 7e15c9eb4e49..7b9a9a5699b2 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/memmap.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/memmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_MEMMAP_H
 #define _ASM_ARCH_MEMMAP_H
 
diff --git a/arch/cris/include/arch-v32/mach-a3/mach/pinmux.h b/arch/cris/include/arch-v32/mach-a3/mach/pinmux.h
index db42a7254584..35e3fc97d6a3 100644
--- a/arch/cris/include/arch-v32/mach-a3/mach/pinmux.h
+++ b/arch/cris/include/arch-v32/mach-a3/mach/pinmux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_PINMUX_H
 #define _ASM_CRIS_ARCH_PINMUX_H
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/arbiter.h b/arch/cris/include/arch-v32/mach-fs/mach/arbiter.h
index a2e0ec8faa7d..f9401a3de83c 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/arbiter.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/arbiter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_ARBITER_H
 #define _ASM_CRIS_ARCH_ARBITER_H
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/dma.h b/arch/cris/include/arch-v32/mach-fs/mach/dma.h
index a8c59292586a..53a59944a48b 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/dma.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_CRIS_DMA_H
 #define _ASM_ARCH_CRIS_DMA_H
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/bif_core_defs_asm.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/bif_core_defs_asm.h
index 0a409c92837e..092cad384b86 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/bif_core_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/bif_core_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_core_defs_asm_h
 #define __bif_core_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/config_defs_asm.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/config_defs_asm.h
index a9908dfc2937..5b38835b42f7 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/config_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/config_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __config_defs_asm_h
 #define __config_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/gio_defs_asm.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/gio_defs_asm.h
index be4c63936d90..3d2056892832 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/gio_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/gio_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __gio_defs_asm_h
 #define __gio_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/pinmux_defs_asm.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/pinmux_defs_asm.h
index 30cf5a936b64..99968cfa446a 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/pinmux_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/pinmux_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __pinmux_defs_asm_h
 #define __pinmux_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/reg_map_asm.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/reg_map_asm.h
index 87517aebd2cb..412b8748e952 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/reg_map_asm.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/reg_map_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __reg_map_h
 #define __reg_map_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/timer_defs_asm.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/timer_defs_asm.h
index e1197194d5c1..3eb17cfbdc75 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/timer_defs_asm.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/asm/timer_defs_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __timer_defs_asm_h
 #define __timer_defs_asm_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_core_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_core_defs.h
index 44362a62b47c..a9ffb7edaf91 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_core_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_core_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_core_defs_h
 #define __bif_core_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_dma_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_dma_defs.h
index 3cb51a09dba7..d1fa172f58f4 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_dma_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_dma_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_dma_defs_h
 #define __bif_dma_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_slave_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_slave_defs.h
index 0c434585a3f9..a8d7cc528546 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_slave_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/bif_slave_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __bif_slave_defs_h
 #define __bif_slave_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/config_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/config_defs.h
index abc5f20705f7..cc8b20d17237 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/config_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/config_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __config_defs_h
 #define __config_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/gio_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/gio_defs.h
index 26aa3efcf91b..da0b1103b66d 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/gio_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/gio_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __gio_defs_h
 #define __gio_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect.h
index bacc2a895c21..ea752a2d8ee2 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Interrupt vector numbers autogenerated by /n/asic/design/tools/rdesc/src/rdes2intr version
  from ../../inst/intr_vect/rtl/guinness/ivmask.config.r
 version . */
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect_defs.h
index aa65128ae1aa..11ebd66585cd 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/intr_vect_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __intr_vect_defs_h
 #define __intr_vect_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_bp_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_bp_defs.h
index dcaaec4620ba..fb7e20d77591 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_bp_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_bp_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_bp_defs_h
 #define __marb_bp_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_defs.h
index 254da0854986..872a7942916a 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/marb_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __marb_defs_h
 #define __marb_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/pinmux_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/pinmux_defs.h
index 751eab5f191c..0a316dc36a6b 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/pinmux_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/pinmux_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __pinmux_defs_h
 #define __pinmux_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/reg_map.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/reg_map.h
index 4146973a58b3..1bfca2666158 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/reg_map.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/reg_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __reg_map_h
 #define __reg_map_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/strmux_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/strmux_defs.h
index cbfaa867829e..0ab49edb1c81 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/strmux_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/strmux_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __strmux_defs_h
 #define __strmux_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/timer_defs.h b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/timer_defs.h
index 76bcc591921d..59c70ba9959b 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/hwregs/timer_defs.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/hwregs/timer_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __timer_defs_h
 #define __timer_defs_h
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/memmap.h b/arch/cris/include/arch-v32/mach-fs/mach/memmap.h
index d29df5644d3e..94328936cc91 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/memmap.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/memmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARCH_MEMMAP_H
 #define _ASM_ARCH_MEMMAP_H
 
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/pinmux.h b/arch/cris/include/arch-v32/mach-fs/mach/pinmux.h
index 09bf0c90d2d3..1d87f1392dc8 100644
--- a/arch/cris/include/arch-v32/mach-fs/mach/pinmux.h
+++ b/arch/cris/include/arch-v32/mach-fs/mach/pinmux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_ARCH_PINMUX_H
 #define _ASM_CRIS_ARCH_PINMUX_H
 
diff --git a/arch/cris/include/asm/axisflashmap.h b/arch/cris/include/asm/axisflashmap.h
index 015ca5445ddd..185596c2caab 100644
--- a/arch/cris/include/asm/axisflashmap.h
+++ b/arch/cris/include/asm/axisflashmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_AXISFLASHMAP_H
 #define __ASM_AXISFLASHMAP_H
 
diff --git a/arch/cris/include/asm/bitops.h b/arch/cris/include/asm/bitops.h
index 8062cb52d343..78f975ad42d9 100644
--- a/arch/cris/include/asm/bitops.h
+++ b/arch/cris/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* asm/bitops.h for Linux/CRIS
  *
  * TODO: asm versions if speed is needed
diff --git a/arch/cris/include/asm/bug.h b/arch/cris/include/asm/bug.h
index 3b3958963801..f1fa72a426c2 100644
--- a/arch/cris/include/asm/bug.h
+++ b/arch/cris/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_BUG_H
 #define _CRIS_BUG_H
 #include <arch/bug.h>
diff --git a/arch/cris/include/asm/cache.h b/arch/cris/include/asm/cache.h
index a692b9fba8b9..8dac0922721c 100644
--- a/arch/cris/include/asm/cache.h
+++ b/arch/cris/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CACHE_H
 #define _ASM_CACHE_H
 
diff --git a/arch/cris/include/asm/cacheflush.h b/arch/cris/include/asm/cacheflush.h
index 36795bca605e..0da1c76a2bbc 100644
--- a/arch/cris/include/asm/cacheflush.h
+++ b/arch/cris/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_CACHEFLUSH_H
 #define _CRIS_CACHEFLUSH_H
 
diff --git a/arch/cris/include/asm/checksum.h b/arch/cris/include/asm/checksum.h
index ea949c60b190..61b6a4f6a002 100644
--- a/arch/cris/include/asm/checksum.h
+++ b/arch/cris/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* TODO: csum_tcpudp_magic could be speeded up, and csum_fold as well */
 
 #ifndef _CRIS_CHECKSUM_H
diff --git a/arch/cris/include/asm/delay.h b/arch/cris/include/asm/delay.h
index 75ec581bfead..2dfdb13e1a9e 100644
--- a/arch/cris/include/asm/delay.h
+++ b/arch/cris/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_DELAY_H
 #define _CRIS_DELAY_H
 
diff --git a/arch/cris/include/asm/dma-mapping.h b/arch/cris/include/asm/dma-mapping.h
index 256169de3743..1c9bf14807db 100644
--- a/arch/cris/include/asm/dma-mapping.h
+++ b/arch/cris/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_DMA_MAPPING_H
 #define _ASM_CRIS_DMA_MAPPING_H
 
diff --git a/arch/cris/include/asm/dma.h b/arch/cris/include/asm/dma.h
index 30fd715fa589..e1f7d6d9bfc2 100644
--- a/arch/cris/include/asm/dma.h
+++ b/arch/cris/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: dma.h,v 1.2 2001/05/09 12:17:42 johana Exp $ */
 
 #ifndef _ASM_DMA_H
diff --git a/arch/cris/include/asm/eshlibld.h b/arch/cris/include/asm/eshlibld.h
index 70aa448256b0..88940556c2db 100644
--- a/arch/cris/include/asm/eshlibld.h
+++ b/arch/cris/include/asm/eshlibld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*!**************************************************************************
 *!
 *! FILE NAME  : eshlibld.h
diff --git a/arch/cris/include/asm/etraxi2c.h b/arch/cris/include/asm/etraxi2c.h
index e369a7620893..0fa6f03d93e7 100644
--- a/arch/cris/include/asm/etraxi2c.h
+++ b/arch/cris/include/asm/etraxi2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: etraxi2c.h,v 1.1 2001/01/18 15:49:57 bjornw Exp $ */
 
 #ifndef _LINUX_ETRAXI2C_H
diff --git a/arch/cris/include/asm/fasttimer.h b/arch/cris/include/asm/fasttimer.h
index 8f8a8d6c9653..bc109f4a8377 100644
--- a/arch/cris/include/asm/fasttimer.h
+++ b/arch/cris/include/asm/fasttimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-cris/fasttimer.h
  *
diff --git a/arch/cris/include/asm/fb.h b/arch/cris/include/asm/fb.h
index c7df38030992..e10150073c30 100644
--- a/arch/cris/include/asm/fb.h
+++ b/arch/cris/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 #include <linux/fb.h>
diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h
index fe0b2a0ae03b..c92712d30f54 100644
--- a/arch/cris/include/asm/io.h
+++ b/arch/cris/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_IO_H
 #define _ASM_CRIS_IO_H
 
diff --git a/arch/cris/include/asm/irq.h b/arch/cris/include/asm/irq.h
index ce0fcf540d62..6a932f7db58e 100644
--- a/arch/cris/include/asm/irq.h
+++ b/arch/cris/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IRQ_H
 #define _ASM_IRQ_H
 
diff --git a/arch/cris/include/asm/mmu.h b/arch/cris/include/asm/mmu.h
index e06ea94ecffd..54da8f64b37a 100644
--- a/arch/cris/include/asm/mmu.h
+++ b/arch/cris/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CRIS MMU constants and PTE layout
  */
diff --git a/arch/cris/include/asm/mmu_context.h b/arch/cris/include/asm/mmu_context.h
index 349acfd25d2f..178f3b72e9e3 100644
--- a/arch/cris/include/asm/mmu_context.h
+++ b/arch/cris/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CRIS_MMU_CONTEXT_H
 #define __CRIS_MMU_CONTEXT_H
 
diff --git a/arch/cris/include/asm/page.h b/arch/cris/include/asm/page.h
index dfc53f9b88ec..5b5b3dad7484 100644
--- a/arch/cris/include/asm/page.h
+++ b/arch/cris/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_PAGE_H
 #define _CRIS_PAGE_H
 
diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 6e505332b3e3..6f8b366a226a 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_PCI_H
 #define __ASM_CRIS_PCI_H
 
diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index 42f1affb9c2d..d8dc1b834b7d 100644
--- a/arch/cris/include/asm/pgalloc.h
+++ b/arch/cris/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_PGALLOC_H
 #define _CRIS_PGALLOC_H
 
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h
index fa3a73004cc5..03fca401e23c 100644
--- a/arch/cris/include/asm/pgtable.h
+++ b/arch/cris/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CRIS pgtable.h - macros and functions to manipulate page tables.
  */
diff --git a/arch/cris/include/asm/processor.h b/arch/cris/include/asm/processor.h
index bc2729e4b2c9..124dd5ec7f65 100644
--- a/arch/cris/include/asm/processor.h
+++ b/arch/cris/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-cris/processor.h
  *
diff --git a/arch/cris/include/asm/ptrace.h b/arch/cris/include/asm/ptrace.h
index 9e788d04a4ef..d69295f1a7c8 100644
--- a/arch/cris/include/asm/ptrace.h
+++ b/arch/cris/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_PTRACE_H
 #define _CRIS_PTRACE_H
 
diff --git a/arch/cris/include/asm/segment.h b/arch/cris/include/asm/segment.h
index c067513beaaf..6ac914b098bf 100644
--- a/arch/cris/include/asm/segment.h
+++ b/arch/cris/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SEGMENT_H
 #define _ASM_SEGMENT_H
 
diff --git a/arch/cris/include/asm/serial.h b/arch/cris/include/asm/serial.h
index af7535a955fb..f51e0e10faa7 100644
--- a/arch/cris/include/asm/serial.h
+++ b/arch/cris/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SERIAL_H
 #define _ASM_SERIAL_H
 
diff --git a/arch/cris/include/asm/shmparam.h b/arch/cris/include/asm/shmparam.h
index d29d12270687..704a7257cb0d 100644
--- a/arch/cris/include/asm/shmparam.h
+++ b/arch/cris/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_SHMPARAM_H
 #define _ASM_CRIS_SHMPARAM_H
 
diff --git a/arch/cris/include/asm/signal.h b/arch/cris/include/asm/signal.h
index c11b8745cece..64b0943c0b00 100644
--- a/arch/cris/include/asm/signal.h
+++ b/arch/cris/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_SIGNAL_H
 #define _ASM_CRIS_SIGNAL_H
 
diff --git a/arch/cris/include/asm/stacktrace.h b/arch/cris/include/asm/stacktrace.h
index 2d90856943ad..154f0c90d0fa 100644
--- a/arch/cris/include/asm/stacktrace.h
+++ b/arch/cris/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CRIS_STACKTRACE_H
 #define __CRIS_STACKTRACE_H
 
diff --git a/arch/cris/include/asm/string.h b/arch/cris/include/asm/string.h
index d5db39f9eea1..bae5a0867785 100644
--- a/arch/cris/include/asm/string.h
+++ b/arch/cris/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_STRING_H
 #define _ASM_CRIS_STRING_H
 
diff --git a/arch/cris/include/asm/swab.h b/arch/cris/include/asm/swab.h
index 991b6ace1ba9..5e1d8cf277fb 100644
--- a/arch/cris/include/asm/swab.h
+++ b/arch/cris/include/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_SWAB_H
 #define _CRIS_SWAB_H
 
diff --git a/arch/cris/include/asm/switch_to.h b/arch/cris/include/asm/switch_to.h
index d842e1163ba1..dde4acf6e54d 100644
--- a/arch/cris/include/asm/switch_to.h
+++ b/arch/cris/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_SWITCH_TO_H
 #define __ASM_CRIS_SWITCH_TO_H
 
diff --git a/arch/cris/include/asm/termios.h b/arch/cris/include/asm/termios.h
index 1991cd9e4083..9832bf3221d0 100644
--- a/arch/cris/include/asm/termios.h
+++ b/arch/cris/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_TERMIOS_H
 #define _CRIS_TERMIOS_H
 
diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h
index 4ead1b40d2d7..472830c90997 100644
--- a/arch/cris/include/asm/thread_info.h
+++ b/arch/cris/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: CRIS low-level thread information
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
diff --git a/arch/cris/include/asm/timex.h b/arch/cris/include/asm/timex.h
index 980924ae7518..3840a556612b 100644
--- a/arch/cris/include/asm/timex.h
+++ b/arch/cris/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-cris/timex.h
  *
diff --git a/arch/cris/include/asm/tlb.h b/arch/cris/include/asm/tlb.h
index 77384ea2f29d..1f6a8a67cfda 100644
--- a/arch/cris/include/asm/tlb.h
+++ b/arch/cris/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_TLB_H
 #define _CRIS_TLB_H
 
diff --git a/arch/cris/include/asm/tlbflush.h b/arch/cris/include/asm/tlbflush.h
index b424f43a9fd6..e7cb964536d0 100644
--- a/arch/cris/include/asm/tlbflush.h
+++ b/arch/cris/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRIS_TLBFLUSH_H
 #define _CRIS_TLBFLUSH_H
 
diff --git a/arch/cris/include/asm/uaccess.h b/arch/cris/include/asm/uaccess.h
index b0c6b077b632..3b42ab0cae93 100644
--- a/arch/cris/include/asm/uaccess.h
+++ b/arch/cris/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Authors:    Bjorn Wesen (bjornw@axis.com)
  *	       Hans-Peter Nilsson (hp@axis.com)
diff --git a/arch/cris/include/asm/ucontext.h b/arch/cris/include/asm/ucontext.h
index eed6ad5eb3f2..22f7e7cf59c8 100644
--- a/arch/cris/include/asm/ucontext.h
+++ b/arch/cris/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_UCONTEXT_H
 #define _ASM_CRIS_UCONTEXT_H
 
diff --git a/arch/cris/include/asm/unaligned.h b/arch/cris/include/asm/unaligned.h
index 7b3f3fec567c..21772cf600dd 100644
--- a/arch/cris/include/asm/unaligned.h
+++ b/arch/cris/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_UNALIGNED_H
 #define _ASM_CRIS_UNALIGNED_H
 
diff --git a/arch/cris/include/asm/unistd.h b/arch/cris/include/asm/unistd.h
index 9c23535821c0..6a92c0505156 100644
--- a/arch/cris/include/asm/unistd.h
+++ b/arch/cris/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CRIS_UNISTD_H_
 #define _ASM_CRIS_UNISTD_H_
 
diff --git a/arch/cris/include/asm/user.h b/arch/cris/include/asm/user.h
index 59147cf43cf6..a19c39547248 100644
--- a/arch/cris/include/asm/user.h
+++ b/arch/cris/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CRIS_USER_H
 #define __ASM_CRIS_USER_H
 
diff --git a/arch/cris/include/uapi/arch-v10/arch/sv_addr_ag.h b/arch/cris/include/uapi/arch-v10/arch/sv_addr_ag.h
index c4b6b0e9b1da..2644bcbe4490 100644
--- a/arch/cris/include/uapi/arch-v10/arch/sv_addr_ag.h
+++ b/arch/cris/include/uapi/arch-v10/arch/sv_addr_ag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*!**************************************************************************
 *!                                                            
 *! MACROS:
diff --git a/arch/cris/include/uapi/arch-v10/arch/svinto.h b/arch/cris/include/uapi/arch-v10/arch/svinto.h
index da5c15272652..793a4275d26a 100644
--- a/arch/cris/include/uapi/arch-v10/arch/svinto.h
+++ b/arch/cris/include/uapi/arch-v10/arch/svinto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_CRIS_SVINTO_H
 #define _ASM_CRIS_SVINTO_H
 
diff --git a/arch/cris/include/uapi/arch-v10/arch/user.h b/arch/cris/include/uapi/arch-v10/arch/user.h
index 9303ea77c915..5b9288527b98 100644
--- a/arch/cris/include/uapi/arch-v10/arch/user.h
+++ b/arch/cris/include/uapi/arch-v10/arch/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_CRIS_ARCH_USER_H
 #define __ASM_CRIS_ARCH_USER_H
 
diff --git a/arch/cris/include/uapi/arch-v32/arch/cryptocop.h b/arch/cris/include/uapi/arch-v32/arch/cryptocop.h
index 694fd13ce1cf..1072d5bf7d4f 100644
--- a/arch/cris/include/uapi/arch-v32/arch/cryptocop.h
+++ b/arch/cris/include/uapi/arch-v32/arch/cryptocop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * The device /dev/cryptocop is accessible using this driver using
  * CRYPTOCOP_MAJOR (254) and minor number 0.
diff --git a/arch/cris/include/uapi/arch-v32/arch/user.h b/arch/cris/include/uapi/arch-v32/arch/user.h
index 03fa1f3c3c00..3576b540ba78 100644
--- a/arch/cris/include/uapi/arch-v32/arch/user.h
+++ b/arch/cris/include/uapi/arch-v32/arch/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_CRIS_ARCH_USER_H
 #define _ASM_CRIS_ARCH_USER_H
 
diff --git a/arch/cris/include/uapi/asm/byteorder.h b/arch/cris/include/uapi/asm/byteorder.h
index bcd189798e26..6e19891e06ee 100644
--- a/arch/cris/include/uapi/asm/byteorder.h
+++ b/arch/cris/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _CRIS_BYTEORDER_H
 #define _CRIS_BYTEORDER_H
 
diff --git a/arch/cris/include/uapi/asm/elf.h b/arch/cris/include/uapi/asm/elf.h
index a5df05bfee66..ea4cbdafe885 100644
--- a/arch/cris/include/uapi/asm/elf.h
+++ b/arch/cris/include/uapi/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASMCRIS_ELF_H
 #define __ASMCRIS_ELF_H
 
diff --git a/arch/cris/include/uapi/asm/elf_v10.h b/arch/cris/include/uapi/asm/elf_v10.h
index 3ea65cef529d..b1515f2684da 100644
--- a/arch/cris/include/uapi/asm/elf_v10.h
+++ b/arch/cris/include/uapi/asm/elf_v10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASMCRIS_ARCH_ELF_H
 #define __ASMCRIS_ARCH_ELF_H
 
diff --git a/arch/cris/include/uapi/asm/elf_v32.h b/arch/cris/include/uapi/asm/elf_v32.h
index f09fe49005c0..cc00ffdb7f9c 100644
--- a/arch/cris/include/uapi/asm/elf_v32.h
+++ b/arch/cris/include/uapi/asm/elf_v32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_CRIS_ELF_H
 #define _ASM_CRIS_ELF_H
 
diff --git a/arch/cris/include/uapi/asm/ethernet.h b/arch/cris/include/uapi/asm/ethernet.h
index 4d58652c3a49..e0c1a6322824 100644
--- a/arch/cris/include/uapi/asm/ethernet.h
+++ b/arch/cris/include/uapi/asm/ethernet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*  
  * ioctl defines for ethernet driver
  *
diff --git a/arch/cris/include/uapi/asm/etraxgpio.h b/arch/cris/include/uapi/asm/etraxgpio.h
index c6e7d57c8b24..10ab0dd45bfe 100644
--- a/arch/cris/include/uapi/asm/etraxgpio.h
+++ b/arch/cris/include/uapi/asm/etraxgpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * The following devices are accessible using this driver using
  * GPIO_MAJOR (120) and a couple of minor numbers.
diff --git a/arch/cris/include/uapi/asm/ioctls.h b/arch/cris/include/uapi/asm/ioctls.h
index 488fbb3f5e84..92d654ce3d84 100644
--- a/arch/cris/include/uapi/asm/ioctls.h
+++ b/arch/cris/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_CRIS_IOCTLS_H__
 #define __ARCH_CRIS_IOCTLS_H__
 
diff --git a/arch/cris/include/uapi/asm/param.h b/arch/cris/include/uapi/asm/param.h
index 484fcf8667c0..ae296115c7c9 100644
--- a/arch/cris/include/uapi/asm/param.h
+++ b/arch/cris/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMCRIS_PARAM_H
 #define _ASMCRIS_PARAM_H
 
diff --git a/arch/cris/include/uapi/asm/posix_types.h b/arch/cris/include/uapi/asm/posix_types.h
index 0f22e6a67ea5..c75d8b0acc99 100644
--- a/arch/cris/include/uapi/asm/posix_types.h
+++ b/arch/cris/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: posix_types.h,v 1.1 2000/07/10 16:32:31 bjornw Exp $ */
 
 /* We cheat a bit and use our C-coded bitops functions from asm/bitops.h */
diff --git a/arch/cris/include/uapi/asm/ptrace.h b/arch/cris/include/uapi/asm/ptrace.h
index bd8946f83ed3..99de59e54613 100644
--- a/arch/cris/include/uapi/asm/ptrace.h
+++ b/arch/cris/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifdef __arch_v32
 #include <asm/ptrace_v32.h>
 #else
diff --git a/arch/cris/include/uapi/asm/ptrace_v10.h b/arch/cris/include/uapi/asm/ptrace_v10.h
index 1a232739565e..4ffffb7ab102 100644
--- a/arch/cris/include/uapi/asm/ptrace_v10.h
+++ b/arch/cris/include/uapi/asm/ptrace_v10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _CRIS_ARCH_PTRACE_H
 #define _CRIS_ARCH_PTRACE_H
 
diff --git a/arch/cris/include/uapi/asm/ptrace_v32.h b/arch/cris/include/uapi/asm/ptrace_v32.h
index 19773d3bd4c4..a91c4aacb14f 100644
--- a/arch/cris/include/uapi/asm/ptrace_v32.h
+++ b/arch/cris/include/uapi/asm/ptrace_v32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _CRIS_ARCH_PTRACE_H
 #define _CRIS_ARCH_PTRACE_H
 
diff --git a/arch/cris/include/uapi/asm/rs485.h b/arch/cris/include/uapi/asm/rs485.h
index ad40f9fbcb8a..041d31fa33d5 100644
--- a/arch/cris/include/uapi/asm/rs485.h
+++ b/arch/cris/include/uapi/asm/rs485.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* RS-485 structures */
 
 /* Used with ioctl() TIOCSERSETRS485 for backward compatibility!
diff --git a/arch/cris/include/uapi/asm/setup.h b/arch/cris/include/uapi/asm/setup.h
index b90728652d1a..4854ace9db76 100644
--- a/arch/cris/include/uapi/asm/setup.h
+++ b/arch/cris/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _CRIS_SETUP_H
 #define _CRIS_SETUP_H
 
diff --git a/arch/cris/include/uapi/asm/sigcontext.h b/arch/cris/include/uapi/asm/sigcontext.h
index a1d634e120df..97565ce3f0b9 100644
--- a/arch/cris/include/uapi/asm/sigcontext.h
+++ b/arch/cris/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: sigcontext.h,v 1.1 2000/07/10 16:32:31 bjornw Exp $ */
 
 #ifndef _ASM_CRIS_SIGCONTEXT_H
diff --git a/arch/cris/include/uapi/asm/signal.h b/arch/cris/include/uapi/asm/signal.h
index ce42fa7c32ad..e4ab00f00111 100644
--- a/arch/cris/include/uapi/asm/signal.h
+++ b/arch/cris/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_CRIS_SIGNAL_H
 #define _UAPI_ASM_CRIS_SIGNAL_H
 
diff --git a/arch/cris/include/uapi/asm/stat.h b/arch/cris/include/uapi/asm/stat.h
index 9e558cc3c43b..cdb74d5862e4 100644
--- a/arch/cris/include/uapi/asm/stat.h
+++ b/arch/cris/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _CRIS_STAT_H
 #define _CRIS_STAT_H
 
diff --git a/arch/cris/include/uapi/asm/sync_serial.h b/arch/cris/include/uapi/asm/sync_serial.h
index 7f827fea30e7..f2d468889ba9 100644
--- a/arch/cris/include/uapi/asm/sync_serial.h
+++ b/arch/cris/include/uapi/asm/sync_serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ioctl defines for synchronous serial port driver
  *
diff --git a/arch/cris/include/uapi/asm/termbits.h b/arch/cris/include/uapi/asm/termbits.h
index 1c43bc874ccf..86925dc1fcae 100644
--- a/arch/cris/include/uapi/asm/termbits.h
+++ b/arch/cris/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: termbits.h,v 1.1 2000/07/10 16:32:31 bjornw Exp $ */
 
 #ifndef __ARCH_ETRAX100_TERMBITS_H__
diff --git a/arch/cris/include/uapi/asm/termios.h b/arch/cris/include/uapi/asm/termios.h
index 0a0386a55027..d87800a6d854 100644
--- a/arch/cris/include/uapi/asm/termios.h
+++ b/arch/cris/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_CRIS_TERMIOS_H
 #define _UAPI_CRIS_TERMIOS_H
 
diff --git a/arch/cris/include/uapi/asm/unistd.h b/arch/cris/include/uapi/asm/unistd.h
index 062b648b27e1..7aba513b082d 100644
--- a/arch/cris/include/uapi/asm/unistd.h
+++ b/arch/cris/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_CRIS_UNISTD_H_
 #define _UAPI_ASM_CRIS_UNISTD_H_
 
diff --git a/arch/cris/kernel/Makefile b/arch/cris/kernel/Makefile
index 5fae398ca915..af075a5fb9aa 100644
--- a/arch/cris/kernel/Makefile
+++ b/arch/cris/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # $Id: Makefile,v 1.12 2004/10/19 13:07:43 starvik Exp $
 #
 # Makefile for the linux kernel.
diff --git a/arch/cris/kernel/asm-offsets.c b/arch/cris/kernel/asm-offsets.c
index a5fd88d816a6..0a5129941485 100644
--- a/arch/cris/kernel/asm-offsets.c
+++ b/arch/cris/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kbuild.h>
 #include <linux/sched.h>
 #include <asm/thread_info.h>
diff --git a/arch/cris/kernel/crisksyms.c b/arch/cris/kernel/crisksyms.c
index 3166d1cf2f84..7024f7278c89 100644
--- a/arch/cris/kernel/crisksyms.c
+++ b/arch/cris/kernel/crisksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/user.h>
 #include <linux/elfcore.h>
diff --git a/arch/cris/kernel/devicetree.c b/arch/cris/kernel/devicetree.c
index 53ff8d73e7e1..36e1c658229f 100644
--- a/arch/cris/kernel/devicetree.c
+++ b/arch/cris/kernel/devicetree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/printk.h>
diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
index 09b864f46f8a..726cdf4bf2d8 100644
--- a/arch/cris/kernel/irq.c
+++ b/arch/cris/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  *	linux/arch/cris/kernel/irq.c
diff --git a/arch/cris/kernel/process.c b/arch/cris/kernel/process.c
index 0bbd3a0c3d70..50e5cf09841d 100644
--- a/arch/cris/kernel/process.c
+++ b/arch/cris/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/kernel/process.c
  *
diff --git a/arch/cris/kernel/profile.c b/arch/cris/kernel/profile.c
index ad56b37f8e11..d2f978ad129a 100644
--- a/arch/cris/kernel/profile.c
+++ b/arch/cris/kernel/profile.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/kernel.h>
diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c
index 806b764059d5..af42789a1544 100644
--- a/arch/cris/kernel/ptrace.c
+++ b/arch/cris/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/kernel/ptrace.c
  *
diff --git a/arch/cris/kernel/setup.c b/arch/cris/kernel/setup.c
index 4b4853d914e2..524d47501a23 100644
--- a/arch/cris/kernel/setup.c
+++ b/arch/cris/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  *  linux/arch/cris/kernel/setup.c
diff --git a/arch/cris/kernel/sys_cris.c b/arch/cris/kernel/sys_cris.c
index 8febb032fdd7..ecea13f1d760 100644
--- a/arch/cris/kernel/sys_cris.c
+++ b/arch/cris/kernel/sys_cris.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Id: sys_cris.c,v 1.6 2004/03/11 11:38:40 starvik Exp $
  *
  * linux/arch/cris/kernel/sys_cris.c
diff --git a/arch/cris/kernel/time.c b/arch/cris/kernel/time.c
index bc562cf511a6..593239274f98 100644
--- a/arch/cris/kernel/time.c
+++ b/arch/cris/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/kernel/time.c
  *
diff --git a/arch/cris/kernel/traps.c b/arch/cris/kernel/traps.c
index d98131c45bb5..d4bc80469218 100644
--- a/arch/cris/kernel/traps.c
+++ b/arch/cris/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/traps.c
  *
diff --git a/arch/cris/kernel/vmlinux.lds.S b/arch/cris/kernel/vmlinux.lds.S
index 867f237d7c5c..6d1dbc1ba767 100644
--- a/arch/cris/kernel/vmlinux.lds.S
+++ b/arch/cris/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make the Linux/CRIS kernel
  * Authors: Bjorn Wesen (bjornw@axis.com)
  *
diff --git a/arch/cris/mm/fault.c b/arch/cris/mm/fault.c
index 1fca464f1b9e..29cc58038b98 100644
--- a/arch/cris/mm/fault.c
+++ b/arch/cris/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/cris/mm/fault.c
  *
diff --git a/arch/cris/mm/init.c b/arch/cris/mm/init.c
index 1e7fd45b60f8..e41d9c833e1c 100644
--- a/arch/cris/mm/init.c
+++ b/arch/cris/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/mm/init.c
  *
diff --git a/arch/cris/mm/ioremap.c b/arch/cris/mm/ioremap.c
index 80fdb995a8ce..350bd2a86ade 100644
--- a/arch/cris/mm/ioremap.c
+++ b/arch/cris/mm/ioremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/cris/mm/ioremap.c
  *
diff --git a/arch/cris/mm/tlb.c b/arch/cris/mm/tlb.c
index 8413741cfa0f..e0dbea62cb81 100644
--- a/arch/cris/mm/tlb.c
+++ b/arch/cris/mm/tlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/cris/mm/tlb.c
  *
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index 1cce8243449e..af369b05fed5 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config FRV
 	bool
 	default y
diff --git a/arch/frv/Kconfig.debug b/arch/frv/Kconfig.debug
index 98c99a3ed2be..ecab6d8a79ed 100644
--- a/arch/frv/Kconfig.debug
+++ b/arch/frv/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/frv/include/asm/atomic_defs.h b/arch/frv/include/asm/atomic_defs.h
index d4912c88b829..ce3b8a4efc12 100644
--- a/arch/frv/include/asm/atomic_defs.h
+++ b/arch/frv/include/asm/atomic_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <asm/spr-regs.h>
 
diff --git a/arch/frv/include/asm/dma-mapping.h b/arch/frv/include/asm/dma-mapping.h
index 354900917585..273defa02a02 100644
--- a/arch/frv/include/asm/dma-mapping.h
+++ b/arch/frv/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
diff --git a/arch/frv/include/asm/fpu.h b/arch/frv/include/asm/fpu.h
index d73c60b56641..2f0929333f91 100644
--- a/arch/frv/include/asm/fpu.h
+++ b/arch/frv/include/asm/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_FPU_H
 #define __ASM_FPU_H
 
diff --git a/arch/frv/include/asm/futex.h b/arch/frv/include/asm/futex.h
index ab346f5f8820..dfcc3484231d 100644
--- a/arch/frv/include/asm/futex.h
+++ b/arch/frv/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FUTEX_H
 #define _ASM_FUTEX_H
 
diff --git a/arch/frv/include/asm/kmap_types.h b/arch/frv/include/asm/kmap_types.h
index 43901f220963..0849db1362d6 100644
--- a/arch/frv/include/asm/kmap_types.h
+++ b/arch/frv/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
diff --git a/arch/frv/include/asm/local.h b/arch/frv/include/asm/local.h
index c27bdf04630e..259ae7b041a7 100644
--- a/arch/frv/include/asm/local.h
+++ b/arch/frv/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_LOCAL_H
 #define _ASM_LOCAL_H
 
diff --git a/arch/frv/include/asm/math-emu.h b/arch/frv/include/asm/math-emu.h
index 0c8f731b2180..8af762dd6109 100644
--- a/arch/frv/include/asm/math-emu.h
+++ b/arch/frv/include/asm/math-emu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MATH_EMU_H
 #define _ASM_MATH_EMU_H
 
diff --git a/arch/frv/include/asm/page.h b/arch/frv/include/asm/page.h
index ec5eebce4fb3..0f76a0d586f6 100644
--- a/arch/frv/include/asm/page.h
+++ b/arch/frv/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PAGE_H
 #define _ASM_PAGE_H
 
diff --git a/arch/frv/include/asm/percpu.h b/arch/frv/include/asm/percpu.h
index 2cad3f874ded..4209fe5fe0a2 100644
--- a/arch/frv/include/asm/percpu.h
+++ b/arch/frv/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PERCPU_H
 #define __ASM_PERCPU_H
 
diff --git a/arch/frv/include/asm/processor.h b/arch/frv/include/asm/processor.h
index e4d08d74ed9f..021cce78b401 100644
--- a/arch/frv/include/asm/processor.h
+++ b/arch/frv/include/asm/processor.h
@@ -92,10 +92,6 @@ static inline void release_thread(struct task_struct *dead_task)
 extern asmlinkage void save_user_regs(struct user_context *target);
 extern asmlinkage void *restore_user_regs(const struct user_context *target, ...);
 
-#define copy_segments(tsk, mm)		do { } while (0)
-#define release_segments(mm)		do { } while (0)
-#define forget_segments()		do { } while (0)
-
 unsigned long get_wchan(struct task_struct *p);
 
 #define	KSTK_EIP(tsk)	((tsk)->thread.frame0->pc)
diff --git a/arch/frv/include/asm/shmparam.h b/arch/frv/include/asm/shmparam.h
index ab711009cfaa..50ea51f26c46 100644
--- a/arch/frv/include/asm/shmparam.h
+++ b/arch/frv/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SHMPARAM_H
 #define _ASM_SHMPARAM_H
 
diff --git a/arch/frv/include/asm/signal.h b/arch/frv/include/asm/signal.h
index eca0abcb79d6..796394113904 100644
--- a/arch/frv/include/asm/signal.h
+++ b/arch/frv/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SIGNAL_H
 #define _ASM_SIGNAL_H
 
diff --git a/arch/frv/include/asm/smp.h b/arch/frv/include/asm/smp.h
index 38349ec8b61b..0d7fa409312d 100644
--- a/arch/frv/include/asm/smp.h
+++ b/arch/frv/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
diff --git a/arch/frv/include/asm/termios.h b/arch/frv/include/asm/termios.h
index 9f753fc09532..5a8c63554617 100644
--- a/arch/frv/include/asm/termios.h
+++ b/arch/frv/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_TERMIOS_H
 #define _ASM_TERMIOS_H
 
diff --git a/arch/frv/include/asm/timex.h b/arch/frv/include/asm/timex.h
index 139093fab326..bf53166f2793 100644
--- a/arch/frv/include/asm/timex.h
+++ b/arch/frv/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* timex.h: FR-V architecture timex specifications
  */
 #ifndef _ASM_TIMEX_H
diff --git a/arch/frv/include/asm/tlb.h b/arch/frv/include/asm/tlb.h
index cd458eb6d75e..d3e361ad725a 100644
--- a/arch/frv/include/asm/tlb.h
+++ b/arch/frv/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_TLB_H
 #define _ASM_TLB_H
 
diff --git a/arch/frv/include/asm/topology.h b/arch/frv/include/asm/topology.h
index 942724352705..207603071f78 100644
--- a/arch/frv/include/asm/topology.h
+++ b/arch/frv/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_TOPOLOGY_H
 #define _ASM_TOPOLOGY_H
 
diff --git a/arch/frv/include/asm/ucontext.h b/arch/frv/include/asm/ucontext.h
index 8d8c0c948007..0cc2d95dd209 100644
--- a/arch/frv/include/asm/ucontext.h
+++ b/arch/frv/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UCONTEXT_H
 #define _ASM_UCONTEXT_H
 
diff --git a/arch/frv/include/asm/unistd.h b/arch/frv/include/asm/unistd.h
index 17b5df8fc28a..b4b3f9b26b81 100644
--- a/arch/frv/include/asm/unistd.h
+++ b/arch/frv/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UNISTD_H_
 #define _ASM_UNISTD_H_
 
diff --git a/arch/frv/include/uapi/asm/bitsperlong.h b/arch/frv/include/uapi/asm/bitsperlong.h
index 6dc0bb0c13b2..76da34b10f59 100644
--- a/arch/frv/include/uapi/asm/bitsperlong.h
+++ b/arch/frv/include/uapi/asm/bitsperlong.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/bitsperlong.h>
diff --git a/arch/frv/include/uapi/asm/byteorder.h b/arch/frv/include/uapi/asm/byteorder.h
index f29b7593e088..a46f6472acdc 100644
--- a/arch/frv/include/uapi/asm/byteorder.h
+++ b/arch/frv/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_BYTEORDER_H
 #define _ASM_BYTEORDER_H
 
diff --git a/arch/frv/include/uapi/asm/errno.h b/arch/frv/include/uapi/asm/errno.h
index d010795ceefe..c5b82f2f2970 100644
--- a/arch/frv/include/uapi/asm/errno.h
+++ b/arch/frv/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ERRNO_H
 #define _ASM_ERRNO_H
 
diff --git a/arch/frv/include/uapi/asm/fcntl.h b/arch/frv/include/uapi/asm/fcntl.h
index 46ab12db5739..a77648c505d1 100644
--- a/arch/frv/include/uapi/asm/fcntl.h
+++ b/arch/frv/include/uapi/asm/fcntl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/fcntl.h>
diff --git a/arch/frv/include/uapi/asm/ioctl.h b/arch/frv/include/uapi/asm/ioctl.h
index b279fe06dfe5..b809c4566e5f 100644
--- a/arch/frv/include/uapi/asm/ioctl.h
+++ b/arch/frv/include/uapi/asm/ioctl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ioctl.h>
diff --git a/arch/frv/include/uapi/asm/ioctls.h b/arch/frv/include/uapi/asm/ioctls.h
index 2f9fb436ec3c..dd9f5eb9feda 100644
--- a/arch/frv/include/uapi/asm/ioctls.h
+++ b/arch/frv/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_IOCTLS_H__
 #define __ASM_IOCTLS_H__
 
diff --git a/arch/frv/include/uapi/asm/ipcbuf.h b/arch/frv/include/uapi/asm/ipcbuf.h
index 84c7e51cb6d0..90d6445a14df 100644
--- a/arch/frv/include/uapi/asm/ipcbuf.h
+++ b/arch/frv/include/uapi/asm/ipcbuf.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ipcbuf.h>
diff --git a/arch/frv/include/uapi/asm/kvm_para.h b/arch/frv/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/frv/include/uapi/asm/kvm_para.h
+++ b/arch/frv/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/frv/include/uapi/asm/mman.h b/arch/frv/include/uapi/asm/mman.h
index 8eebf89f5ab1..306fc0460b80 100644
--- a/arch/frv/include/uapi/asm/mman.h
+++ b/arch/frv/include/uapi/asm/mman.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/mman.h>
diff --git a/arch/frv/include/uapi/asm/msgbuf.h b/arch/frv/include/uapi/asm/msgbuf.h
index 97ceb55a06fb..156c81bb46d7 100644
--- a/arch/frv/include/uapi/asm/msgbuf.h
+++ b/arch/frv/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_MSGBUF_H
 #define _ASM_MSGBUF_H
 
diff --git a/arch/frv/include/uapi/asm/param.h b/arch/frv/include/uapi/asm/param.h
index a52dca9a9566..d3e0168d8937 100644
--- a/arch/frv/include/uapi/asm/param.h
+++ b/arch/frv/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_PARAM_H
 #define _ASM_PARAM_H
 
diff --git a/arch/frv/include/uapi/asm/poll.h b/arch/frv/include/uapi/asm/poll.h
index 0d01479ccc56..887b67288340 100644
--- a/arch/frv/include/uapi/asm/poll.h
+++ b/arch/frv/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POLL_H
 #define _ASM_POLL_H
 
diff --git a/arch/frv/include/uapi/asm/posix_types.h b/arch/frv/include/uapi/asm/posix_types.h
index fe512af74a5a..2995777227b3 100644
--- a/arch/frv/include/uapi/asm/posix_types.h
+++ b/arch/frv/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POSIX_TYPES_H
 #define _ASM_POSIX_TYPES_H
 
diff --git a/arch/frv/include/uapi/asm/ptrace.h b/arch/frv/include/uapi/asm/ptrace.h
index 3887e4934683..f1d2f652d083 100644
--- a/arch/frv/include/uapi/asm/ptrace.h
+++ b/arch/frv/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* ptrace.h: ptrace() relevant definitions
  *
  * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/frv/include/uapi/asm/registers.h b/arch/frv/include/uapi/asm/registers.h
index 9666119fcf6e..4caf09b6c193 100644
--- a/arch/frv/include/uapi/asm/registers.h
+++ b/arch/frv/include/uapi/asm/registers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* registers.h: register frame declarations
  *
  * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/frv/include/uapi/asm/resource.h b/arch/frv/include/uapi/asm/resource.h
index 5fc60548fd02..2100305f9b3e 100644
--- a/arch/frv/include/uapi/asm/resource.h
+++ b/arch/frv/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_RESOURCE_H
 #define _ASM_RESOURCE_H
 
diff --git a/arch/frv/include/uapi/asm/sembuf.h b/arch/frv/include/uapi/asm/sembuf.h
index 164b12786d6d..d5477f95832b 100644
--- a/arch/frv/include/uapi/asm/sembuf.h
+++ b/arch/frv/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
diff --git a/arch/frv/include/uapi/asm/setup.h b/arch/frv/include/uapi/asm/setup.h
index fbf3fc96aae9..f54957047900 100644
--- a/arch/frv/include/uapi/asm/setup.h
+++ b/arch/frv/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* setup.h: setup stuff
  *
  * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/frv/include/uapi/asm/shmbuf.h b/arch/frv/include/uapi/asm/shmbuf.h
index 4c6e711a4779..1de8f892e412 100644
--- a/arch/frv/include/uapi/asm/shmbuf.h
+++ b/arch/frv/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SHMBUF_H
 #define _ASM_SHMBUF_H
 
diff --git a/arch/frv/include/uapi/asm/sigcontext.h b/arch/frv/include/uapi/asm/sigcontext.h
index 3b263f3cc96f..8fbb0b00afdd 100644
--- a/arch/frv/include/uapi/asm/sigcontext.h
+++ b/arch/frv/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* sigcontext.h: FRV signal context
  *
  * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/frv/include/uapi/asm/siginfo.h b/arch/frv/include/uapi/asm/siginfo.h
index f55d9e0e9068..4c8c975747ac 100644
--- a/arch/frv/include/uapi/asm/siginfo.h
+++ b/arch/frv/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SIGINFO_H
 #define _ASM_SIGINFO_H
 
diff --git a/arch/frv/include/uapi/asm/signal.h b/arch/frv/include/uapi/asm/signal.h
index bf3b162f9bea..603bb796cf46 100644
--- a/arch/frv/include/uapi/asm/signal.h
+++ b/arch/frv/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_SIGNAL_H
 #define _UAPI_ASM_SIGNAL_H
 
diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h
index 9abf02d6855a..9168e78fa32a 100644
--- a/arch/frv/include/uapi/asm/socket.h
+++ b/arch/frv/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SOCKET_H
 #define _ASM_SOCKET_H
 
diff --git a/arch/frv/include/uapi/asm/sockios.h b/arch/frv/include/uapi/asm/sockios.h
index 5dbdd13e6de3..2f62caf1ce84 100644
--- a/arch/frv/include/uapi/asm/sockios.h
+++ b/arch/frv/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SOCKIOS__
 #define _ASM_SOCKIOS__
 
diff --git a/arch/frv/include/uapi/asm/stat.h b/arch/frv/include/uapi/asm/stat.h
index ce56de9b37ba..0ff9fab915a4 100644
--- a/arch/frv/include/uapi/asm/stat.h
+++ b/arch/frv/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_STAT_H
 #define _ASM_STAT_H
 
diff --git a/arch/frv/include/uapi/asm/statfs.h b/arch/frv/include/uapi/asm/statfs.h
index 741f586045ba..2a378cbff07f 100644
--- a/arch/frv/include/uapi/asm/statfs.h
+++ b/arch/frv/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_STATFS_H
 #define _ASM_STATFS_H
 
diff --git a/arch/frv/include/uapi/asm/swab.h b/arch/frv/include/uapi/asm/swab.h
index f305834b4799..c78257d172e5 100644
--- a/arch/frv/include/uapi/asm/swab.h
+++ b/arch/frv/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SWAB_H
 #define _ASM_SWAB_H
 
diff --git a/arch/frv/include/uapi/asm/termbits.h b/arch/frv/include/uapi/asm/termbits.h
index 7722e19cc349..b1dcd8d0ff78 100644
--- a/arch/frv/include/uapi/asm/termbits.h
+++ b/arch/frv/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_TERMBITS_H__
 #define _ASM_TERMBITS_H__
 
diff --git a/arch/frv/include/uapi/asm/termios.h b/arch/frv/include/uapi/asm/termios.h
index edcc08a22382..ae35bedae6a2 100644
--- a/arch/frv/include/uapi/asm/termios.h
+++ b/arch/frv/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_TERMIOS_H
 #define _UAPI_ASM_TERMIOS_H
 
diff --git a/arch/frv/include/uapi/asm/types.h b/arch/frv/include/uapi/asm/types.h
index cf23149943f9..db74ad9ba6c0 100644
--- a/arch/frv/include/uapi/asm/types.h
+++ b/arch/frv/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* types.h: FRV types
  *
  * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/frv/include/uapi/asm/unistd.h b/arch/frv/include/uapi/asm/unistd.h
index 9e2612ff1c9d..4b46acaf832b 100644
--- a/arch/frv/include/uapi/asm/unistd.h
+++ b/arch/frv/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_UNISTD_H_
 #define _UAPI_ASM_UNISTD_H_
 
diff --git a/arch/frv/kernel/Makefile b/arch/frv/kernel/Makefile
index 3cbb3294b9f9..216ddf30c3c1 100644
--- a/arch/frv/kernel/Makefile
+++ b/arch/frv/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/frv/kernel/asm-offsets.c b/arch/frv/kernel/asm-offsets.c
index 20c5b79b55f9..0a468e9b51ad 100644
--- a/arch/frv/kernel/asm-offsets.c
+++ b/arch/frv/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed
diff --git a/arch/frv/kernel/frv_ksyms.c b/arch/frv/kernel/frv_ksyms.c
index cdb4ce9960eb..6ea430d58149 100644
--- a/arch/frv/kernel/frv_ksyms.c
+++ b/arch/frv/kernel/frv_ksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/linkage.h>
 #include <linux/sched.h>
diff --git a/arch/frv/kernel/vmlinux.lds.S b/arch/frv/kernel/vmlinux.lds.S
index 3f44dcbbad4d..42806c512758 100644
--- a/arch/frv/kernel/vmlinux.lds.S
+++ b/arch/frv/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make FRV Linux kernel
  * Written by Martin Mares <mj@atrey.karlin.mff.cuni.cz>;
  */
diff --git a/arch/frv/lib/atomic-lib.c b/arch/frv/lib/atomic-lib.c
index 4d1b887c248b..3027576f7782 100644
--- a/arch/frv/lib/atomic-lib.c
+++ b/arch/frv/lib/atomic-lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/export.h>
 #include <asm/atomic.h>
diff --git a/arch/frv/mb93090-mb00/Makefile b/arch/frv/mb93090-mb00/Makefile
index 21f1df1b378a..bcb03ebb3583 100644
--- a/arch/frv/mb93090-mb00/Makefile
+++ b/arch/frv/mb93090-mb00/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the MB93090-MB00 motherboard stuff
 #
diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h
index d51992ff5a61..41fbb6bae558 100644
--- a/arch/frv/mb93090-mb00/pci-frv.h
+++ b/arch/frv/mb93090-mb00/pci-frv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Low-Level PCI Access for FRV machines.
  *
diff --git a/arch/frv/mb93090-mb00/pci-irq.c b/arch/frv/mb93090-mb00/pci-irq.c
index 1c35c93f942b..a40aa8663056 100644
--- a/arch/frv/mb93090-mb00/pci-irq.c
+++ b/arch/frv/mb93090-mb00/pci-irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci-irq.c: PCI IRQ routing on the FRV motherboard
  *
  * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/frv/mm/extable.c b/arch/frv/mm/extable.c
index 9198ddd16092..77c0c5ba88bc 100644
--- a/arch/frv/mm/extable.c
+++ b/arch/frv/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/frv/mm/extable.c
  */
diff --git a/arch/frv/mm/fault.c b/arch/frv/mm/fault.c
index 179e79e220e5..cbe7aec863e3 100644
--- a/arch/frv/mm/fault.c
+++ b/arch/frv/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/frv/mm/fault.c
  *
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
index 3089f7fe2abd..f8d3fde08190 100644
--- a/arch/h8300/Kconfig
+++ b/arch/h8300/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config H8300
         def_bool y
 	select GENERIC_ATOMIC64
diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
index 8d0ff20c749a..b5e14d513e62 100644
--- a/arch/h8300/Kconfig.cpu
+++ b/arch/h8300/Kconfig.cpu
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config CPU_H8300H
 	bool
 
diff --git a/arch/h8300/boot/Makefile b/arch/h8300/boot/Makefile
index 2f6393a5da57..8e62df20ebf9 100644
--- a/arch/h8300/boot/Makefile
+++ b/arch/h8300/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # arch/h8300/boot/Makefile
 
 targets := vmlinux.srec vmlinux.bin zImage
diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile
index 613bfe6f5272..9e2701069bbe 100644
--- a/arch/h8300/boot/compressed/Makefile
+++ b/arch/h8300/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/sh/boot/compressed/Makefile
 #
diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S
index 0436350c1df5..11ef509579cf 100644
--- a/arch/h8300/boot/compressed/head.S
+++ b/arch/h8300/boot/compressed/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/h8300/boot/compressed/head.S
  *
diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c
index a947dbb4fd91..8915d8fe2e53 100644
--- a/arch/h8300/boot/compressed/misc.c
+++ b/arch/h8300/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/h8300/boot/compressed/misc.c
  *
diff --git a/arch/h8300/boot/compressed/vmlinux.lds b/arch/h8300/boot/compressed/vmlinux.lds
index ad848a72fd3f..7f7bb419ce15 100644
--- a/arch/h8300/boot/compressed/vmlinux.lds
+++ b/arch/h8300/boot/compressed/vmlinux.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 SECTIONS
 {
         .text :
diff --git a/arch/h8300/boot/dts/Makefile b/arch/h8300/boot/dts/Makefile
index 6c08467c6a3a..14593b51b2b2 100644
--- a/arch/h8300/boot/dts/Makefile
+++ b/arch/h8300/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifneq '$(CONFIG_H8300_BUILTIN_DTB)' '""'
 BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_H8300_BUILTIN_DTB)).dtb.o
 endif
diff --git a/arch/h8300/boot/dts/edosk2674.dts b/arch/h8300/boot/dts/edosk2674.dts
index 6ae884bf66a5..d1733805ea67 100644
--- a/arch/h8300/boot/dts/edosk2674.dts
+++ b/arch/h8300/boot/dts/edosk2674.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 / {
 	compatible = "renesas,edosk2674";
diff --git a/arch/h8300/boot/dts/h8300h_sim.dts b/arch/h8300/boot/dts/h8300h_sim.dts
index 9c733d920f1f..f1c31cecdec8 100644
--- a/arch/h8300/boot/dts/h8300h_sim.dts
+++ b/arch/h8300/boot/dts/h8300h_sim.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 / {
 	compatible = "gnu,gdbsim";
diff --git a/arch/h8300/boot/dts/h8s_sim.dts b/arch/h8300/boot/dts/h8s_sim.dts
index 97e1f4b17ef0..932cc3c5a81b 100644
--- a/arch/h8300/boot/dts/h8s_sim.dts
+++ b/arch/h8300/boot/dts/h8s_sim.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 / {
 	compatible = "gnu,gdbsim";
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
index 349a47a918db..941e7554e886 100644
--- a/arch/h8300/include/asm/atomic.h
+++ b/arch/h8300/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_H8300_ATOMIC__
 #define __ARCH_H8300_ATOMIC__
 
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
index 05999aba1d6a..ea0cb0cf6a8b 100644
--- a/arch/h8300/include/asm/bitops.h
+++ b/arch/h8300/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_BITOPS_H
 #define _H8300_BITOPS_H
 
diff --git a/arch/h8300/include/asm/bug.h b/arch/h8300/include/asm/bug.h
index 1e1be8119935..00fe5e966bb5 100644
--- a/arch/h8300/include/asm/bug.h
+++ b/arch/h8300/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_BUG_H
 #define _H8300_BUG_H
 
diff --git a/arch/h8300/include/asm/byteorder.h b/arch/h8300/include/asm/byteorder.h
index 888478a38145..ecff2d1ca5a3 100644
--- a/arch/h8300/include/asm/byteorder.h
+++ b/arch/h8300/include/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __H8300_BYTEORDER_H__
 #define __H8300_BYTEORDER_H__
 
diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h
index 0ef1edc5a6a6..4243eb319acf 100644
--- a/arch/h8300/include/asm/cache.h
+++ b/arch/h8300/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_H8300_CACHE_H
 #define __ARCH_H8300_CACHE_H
 
diff --git a/arch/h8300/include/asm/cmpxchg.h b/arch/h8300/include/asm/cmpxchg.h
index 95fec4cd1081..c64bb38ce242 100644
--- a/arch/h8300/include/asm/cmpxchg.h
+++ b/arch/h8300/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_H8300_CMPXCHG__
 #define __ARCH_H8300_CMPXCHG__
 
diff --git a/arch/h8300/include/asm/dma-mapping.h b/arch/h8300/include/asm/dma-mapping.h
index 847c7562e046..21bb1fc3a6f1 100644
--- a/arch/h8300/include/asm/dma-mapping.h
+++ b/arch/h8300/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_DMA_MAPPING_H
 #define _H8300_DMA_MAPPING_H
 
diff --git a/arch/h8300/include/asm/elf.h b/arch/h8300/include/asm/elf.h
index 09031d0127a3..029647cda44c 100644
--- a/arch/h8300/include/asm/elf.h
+++ b/arch/h8300/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_H8300_ELF_H
 #define __ASM_H8300_ELF_H
 
diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h
index 7e0bd6fa1532..f4cdfcbdd2ba 100644
--- a/arch/h8300/include/asm/flat.h
+++ b/arch/h8300/include/asm/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/h8300/asm/include/flat.h -- uClinux flat-format executables
  */
diff --git a/arch/h8300/include/asm/hash.h b/arch/h8300/include/asm/hash.h
index 04cfbd2bd850..2960b4c9e4ed 100644
--- a/arch/h8300/include/asm/hash.h
+++ b/arch/h8300/include/asm/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HASH_H
 #define _ASM_HASH_H
 
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
index f86918aed9e1..096d99580db6 100644
--- a/arch/h8300/include/asm/io.h
+++ b/arch/h8300/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_IO_H
 #define _H8300_IO_H
 
diff --git a/arch/h8300/include/asm/irq.h b/arch/h8300/include/asm/irq.h
index 69f23f0981b3..5fc5b436dde9 100644
--- a/arch/h8300/include/asm/irq.h
+++ b/arch/h8300/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_IRQ_H_
 #define _H8300_IRQ_H_
 
diff --git a/arch/h8300/include/asm/irqflags.h b/arch/h8300/include/asm/irqflags.h
index 5e1e3242e470..48756b7f405e 100644
--- a/arch/h8300/include/asm/irqflags.h
+++ b/arch/h8300/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_IRQFLAGS_H
 #define _H8300_IRQFLAGS_H
 
diff --git a/arch/h8300/include/asm/page.h b/arch/h8300/include/asm/page.h
index 3a987a567258..8da5124ad344 100644
--- a/arch/h8300/include/asm/page.h
+++ b/arch/h8300/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_PAGE_H
 #define _H8300_PAGE_H
 
diff --git a/arch/h8300/include/asm/pci.h b/arch/h8300/include/asm/pci.h
index 0b2acaa3dd84..7c9e55d62215 100644
--- a/arch/h8300/include/asm/pci.h
+++ b/arch/h8300/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_H8300_PCI_H
 #define _ASM_H8300_PCI_H
 
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
index 7d265d28ba5e..a99caa49d265 100644
--- a/arch/h8300/include/asm/pgtable.h
+++ b/arch/h8300/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_PGTABLE_H
 #define _H8300_PGTABLE_H
 #define __ARCH_USE_5LEVEL_HACK
diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
index afa53147e66a..985346393e4a 100644
--- a/arch/h8300/include/asm/processor.h
+++ b/arch/h8300/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-h8300/processor.h
  *
diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h
index e693fb463ea8..313cafa85380 100644
--- a/arch/h8300/include/asm/ptrace.h
+++ b/arch/h8300/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_PTRACE_H
 #define _H8300_PTRACE_H
 
diff --git a/arch/h8300/include/asm/segment.h b/arch/h8300/include/asm/segment.h
index 48424c6e169f..9adbf7e1aaa3 100644
--- a/arch/h8300/include/asm/segment.h
+++ b/arch/h8300/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_SEGMENT_H
 #define _H8300_SEGMENT_H
 
diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h
index 5870835c0470..a42f32ca530f 100644
--- a/arch/h8300/include/asm/signal.h
+++ b/arch/h8300/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_SIGNAL_H
 #define _H8300_SIGNAL_H
 
diff --git a/arch/h8300/include/asm/string.h b/arch/h8300/include/asm/string.h
index 5dc5a8ac0544..78e45bb2fef0 100644
--- a/arch/h8300/include/asm/string.h
+++ b/arch/h8300/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_STRING_H_
 #define _H8300_STRING_H_
 
diff --git a/arch/h8300/include/asm/switch_to.h b/arch/h8300/include/asm/switch_to.h
index 7ad1bf92dbc3..2b7e9555bcd1 100644
--- a/arch/h8300/include/asm/switch_to.h
+++ b/arch/h8300/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_SWITCH_TO_H
 #define _H8300_SWITCH_TO_H
 
diff --git a/arch/h8300/include/asm/syscall.h b/arch/h8300/include/asm/syscall.h
index b41f688d02cf..924990401237 100644
--- a/arch/h8300/include/asm/syscall.h
+++ b/arch/h8300/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_H8300_SYSCALLS_32_H
 #define __ASM_H8300_SYSCALLS_32_H
 
diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h
index 3cef06875f5c..072b92c0d8b5 100644
--- a/arch/h8300/include/asm/thread_info.h
+++ b/arch/h8300/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: h8300 low-level thread information
  * adapted from the i386 and PPC versions by Yoshinori Sato <ysato@users.sourceforge.jp>
  *
diff --git a/arch/h8300/include/asm/tlb.h b/arch/h8300/include/asm/tlb.h
index 2c6fa4eed448..98f344279904 100644
--- a/arch/h8300/include/asm/tlb.h
+++ b/arch/h8300/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __H8300_TLB_H__
 #define __H8300_TLB_H__
 
diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h
index 6f6144a240ce..bc8031949d07 100644
--- a/arch/h8300/include/asm/uaccess.h
+++ b/arch/h8300/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UACCESS_H
 #define _ASM_UACCESS_H
 
diff --git a/arch/h8300/include/asm/user.h b/arch/h8300/include/asm/user.h
index 2e3555f451f0..2298909f24c6 100644
--- a/arch/h8300/include/asm/user.h
+++ b/arch/h8300/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _H8300_USER_H
 #define _H8300_USER_H
 
diff --git a/arch/h8300/include/uapi/asm/bitsperlong.h b/arch/h8300/include/uapi/asm/bitsperlong.h
index 34212608371e..a33e358f1c1b 100644
--- a/arch/h8300/include/uapi/asm/bitsperlong.h
+++ b/arch/h8300/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_H8300_BITS_PER_LONG
 #define _UAPI__ASM_H8300_BITS_PER_LONG
 
diff --git a/arch/h8300/include/uapi/asm/byteorder.h b/arch/h8300/include/uapi/asm/byteorder.h
index 13539da99efd..1fe2f9344458 100644
--- a/arch/h8300/include/uapi/asm/byteorder.h
+++ b/arch/h8300/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _H8300_BYTEORDER_H
 #define _H8300_BYTEORDER_H
 
diff --git a/arch/h8300/include/uapi/asm/ptrace.h b/arch/h8300/include/uapi/asm/ptrace.h
index e132670d70ec..78167f517ca4 100644
--- a/arch/h8300/include/uapi/asm/ptrace.h
+++ b/arch/h8300/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_H8300_PTRACE_H
 #define _UAPI_H8300_PTRACE_H
 
diff --git a/arch/h8300/include/uapi/asm/sigcontext.h b/arch/h8300/include/uapi/asm/sigcontext.h
index c41fdaa04657..f77273c857d7 100644
--- a/arch/h8300/include/uapi/asm/sigcontext.h
+++ b/arch/h8300/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_H8300_SIGCONTEXT_H
 #define _ASM_H8300_SIGCONTEXT_H
 
diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h
index af3a6c37fee6..e15521037348 100644
--- a/arch/h8300/include/uapi/asm/signal.h
+++ b/arch/h8300/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_H8300_SIGNAL_H
 #define _UAPI_H8300_SIGNAL_H
 
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
index 253f8e322ecc..b62e830525c6 100644
--- a/arch/h8300/kernel/Makefile
+++ b/arch/h8300/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/h8300/kernel/asm-offsets.c b/arch/h8300/kernel/asm-offsets.c
index dc2d16ce8a0d..85e60509f0a8 100644
--- a/arch/h8300/kernel/asm-offsets.c
+++ b/arch/h8300/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This program is used to generate definitions needed by
  * assembly language modules.
diff --git a/arch/h8300/kernel/entry.S b/arch/h8300/kernel/entry.S
index 4f67d4b350d5..4ade5f8299ba 100644
--- a/arch/h8300/kernel/entry.S
+++ b/arch/h8300/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *  linux/arch/h8300/kernel/entry.S
diff --git a/arch/h8300/kernel/h8300_ksyms.c b/arch/h8300/kernel/h8300_ksyms.c
index a9033c838968..1c6f902e82a5 100644
--- a/arch/h8300/kernel/h8300_ksyms.c
+++ b/arch/h8300/kernel/h8300_ksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/linkage.h>
 
diff --git a/arch/h8300/kernel/head_ram.S b/arch/h8300/kernel/head_ram.S
index 84ac5c3ed31a..dbf8429f5fab 100644
--- a/arch/h8300/kernel/head_ram.S
+++ b/arch/h8300/kernel/head_ram.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <linux/sys.h>
 #include <linux/init.h>
diff --git a/arch/h8300/kernel/head_rom.S b/arch/h8300/kernel/head_rom.S
index 9868a4121a1f..ab55a9cb2f36 100644
--- a/arch/h8300/kernel/head_rom.S
+++ b/arch/h8300/kernel/head_rom.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 #include <asm/thread_info.h>
 
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
index da79f9521699..834e4d7b1bcf 100644
--- a/arch/h8300/kernel/irq.c
+++ b/arch/h8300/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/h8300/kernel/irq.c
  *
diff --git a/arch/h8300/kernel/module.c b/arch/h8300/kernel/module.c
index 515f6c4e8d80..cd802cc78d97 100644
--- a/arch/h8300/kernel/module.c
+++ b/arch/h8300/kernel/module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/moduleloader.h>
 #include <linux/elf.h>
 #include <linux/vmalloc.h>
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
index d1ddcabbbe83..e35cdf092e07 100644
--- a/arch/h8300/kernel/process.c
+++ b/arch/h8300/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/h8300/kernel/process.c
  *
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
index 6be15d634650..a4d0470c10a9 100644
--- a/arch/h8300/kernel/setup.c
+++ b/arch/h8300/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/h8300/kernel/setup.c
  *
diff --git a/arch/h8300/kernel/syscalls.c b/arch/h8300/kernel/syscalls.c
index 1f9123a013d3..9022036fb3d2 100644
--- a/arch/h8300/kernel/syscalls.c
+++ b/arch/h8300/kernel/syscalls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/syscalls.h>
 #include <linux/signal.h>
 #include <linux/unistd.h>
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
index 7f11da1b895e..35716a3048de 100644
--- a/arch/h8300/kernel/vmlinux.lds.S
+++ b/arch/h8300/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/page.h>
 #include <asm/thread_info.h>
diff --git a/arch/h8300/lib/abs.S b/arch/h8300/lib/abs.S
index efda749db03e..6e1a4ed3af53 100644
--- a/arch/h8300/lib/abs.S
+++ b/arch/h8300/lib/abs.S
@@ -1,3 +1,4 @@
+;;; SPDX-License-Identifier: GPL-2.0
 ;;; abs.S
 
 #include <asm/linkage.h>
diff --git a/arch/h8300/lib/ashldi3.c b/arch/h8300/lib/ashldi3.c
index c6aa8ea5f4be..430720c0c5d8 100644
--- a/arch/h8300/lib/ashldi3.c
+++ b/arch/h8300/lib/ashldi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "libgcc.h"
 
 DWtype
diff --git a/arch/h8300/lib/ashrdi3.c b/arch/h8300/lib/ashrdi3.c
index 070adf96d3b6..2c6cd424eb3e 100644
--- a/arch/h8300/lib/ashrdi3.c
+++ b/arch/h8300/lib/ashrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "libgcc.h"
 
 DWtype __ashrdi3(DWtype u, word_type b)
diff --git a/arch/h8300/lib/delay.c b/arch/h8300/lib/delay.c
index 463f6b3afb52..f4277529a9b9 100644
--- a/arch/h8300/lib/delay.c
+++ b/arch/h8300/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * delay loops
  *
diff --git a/arch/h8300/lib/libgcc.h b/arch/h8300/lib/libgcc.h
index 468a8f78197a..b8bcf7035ff5 100644
--- a/arch/h8300/lib/libgcc.h
+++ b/arch/h8300/lib/libgcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __H8300_LIBGCC_H__
 #define __H8300_LIBGCC_H__
 
diff --git a/arch/h8300/lib/lshrdi3.c b/arch/h8300/lib/lshrdi3.c
index a86bbe395f17..8dbc861ca589 100644
--- a/arch/h8300/lib/lshrdi3.c
+++ b/arch/h8300/lib/lshrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "libgcc.h"
 
 DWtype __lshrdi3(DWtype u, word_type b)
diff --git a/arch/h8300/lib/memcpy.S b/arch/h8300/lib/memcpy.S
index 0c9a51fcdea1..f1cd67d5e3ea 100644
--- a/arch/h8300/lib/memcpy.S
+++ b/arch/h8300/lib/memcpy.S
@@ -1,3 +1,4 @@
+;;; SPDX-License-Identifier: GPL-2.0
 ;;; memcpy.S
 
 #include <asm/linkage.h>
diff --git a/arch/h8300/lib/memset.S b/arch/h8300/lib/memset.S
index 18d4e709b5f4..2d1abc37fd08 100644
--- a/arch/h8300/lib/memset.S
+++ b/arch/h8300/lib/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* memset.S */
 
 #include <asm/linkage.h>
diff --git a/arch/h8300/lib/moddivsi3.S b/arch/h8300/lib/moddivsi3.S
index c803129e877f..9e33ab0456c7 100644
--- a/arch/h8300/lib/moddivsi3.S
+++ b/arch/h8300/lib/moddivsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "libgcc.h"
 
 ; numerator in A0/A1
diff --git a/arch/h8300/lib/modsi3.S b/arch/h8300/lib/modsi3.S
index 68b1dfc32824..bdc8a002921d 100644
--- a/arch/h8300/lib/modsi3.S
+++ b/arch/h8300/lib/modsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "libgcc.h"
 
 ; numerator in A0/A1
diff --git a/arch/h8300/lib/muldi3.c b/arch/h8300/lib/muldi3.c
index 790512243531..9cb11b134e54 100644
--- a/arch/h8300/lib/muldi3.c
+++ b/arch/h8300/lib/muldi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "libgcc.h"
 
 #define __ll_B ((UWtype) 1 << (W_TYPE_SIZE / 2))
diff --git a/arch/h8300/lib/mulsi3.S b/arch/h8300/lib/mulsi3.S
index 451f0e0538ee..5a062fd298d1 100644
--- a/arch/h8300/lib/mulsi3.S
+++ b/arch/h8300/lib/mulsi3.S
@@ -1,3 +1,4 @@
+; SPDX-License-Identifier: GPL-2.0
 ;
 ; mulsi3 for H8/300H - based on Renesas SH implementation
 ;
diff --git a/arch/h8300/lib/strncpy.S b/arch/h8300/lib/strncpy.S
index d00396a378f4..8b65d7c4727b 100644
--- a/arch/h8300/lib/strncpy.S
+++ b/arch/h8300/lib/strncpy.S
@@ -1,3 +1,4 @@
+;;; SPDX-License-Identifier: GPL-2.0
 ;;; strncpy.S
 
 #include <asm/linkage.h>
diff --git a/arch/h8300/lib/ucmpdi2.c b/arch/h8300/lib/ucmpdi2.c
index 772399d705cb..9f646885f3d7 100644
--- a/arch/h8300/lib/ucmpdi2.c
+++ b/arch/h8300/lib/ucmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "libgcc.h"
 
 word_type __ucmpdi2(DWtype a, DWtype b)
diff --git a/arch/h8300/lib/udivsi3.S b/arch/h8300/lib/udivsi3.S
index bbe65610f316..b810aba8e100 100644
--- a/arch/h8300/lib/udivsi3.S
+++ b/arch/h8300/lib/udivsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "libgcc.h"
 
 	;; This function also computes the remainder and stores it in er3.
diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c
index 5924ff555ded..fabffb83930a 100644
--- a/arch/h8300/mm/fault.c
+++ b/arch/h8300/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/h8300/mm/fault.c
  *
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
index 495a3d6b539b..eeead51bed2d 100644
--- a/arch/h8300/mm/init.c
+++ b/arch/h8300/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/h8300/mm/init.c
  *
diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c
index 4974aa40bcb8..3785f72bf3fc 100644
--- a/arch/h8300/mm/memory.c
+++ b/arch/h8300/mm/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/h8300/mm/memory.c
  *
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 1941e4baaee6..76d2f20d525e 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Hexagon configuration
 comment "Linux Kernel Configuration for Hexagon"
 
diff --git a/arch/hexagon/Makefile b/arch/hexagon/Makefile
index 207711a0fd0c..48fe08230a80 100644
--- a/arch/hexagon/Makefile
+++ b/arch/hexagon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #  Makefile for the Hexagon arch
 
 KBUILD_DEFCONFIG = comet_defconfig
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 34013683d123..4a23e527d651 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 generic-y += barrier.h
 generic-y += bug.h
 generic-y += bugs.h
diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h
index c607b77c8215..c889f5993ecd 100644
--- a/arch/hexagon/include/asm/futex.h
+++ b/arch/hexagon/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HEXAGON_FUTEX_H
 #define _ASM_HEXAGON_FUTEX_H
 
diff --git a/arch/hexagon/include/asm/spinlock.h b/arch/hexagon/include/asm/spinlock.h
index 53a8d5885887..48020863f53a 100644
--- a/arch/hexagon/include/asm/spinlock.h
+++ b/arch/hexagon/include/asm/spinlock.h
@@ -86,16 +86,6 @@ static inline int arch_read_trylock(arch_rwlock_t *lock)
 	return temp;
 }
 
-static inline int arch_read_can_lock(arch_rwlock_t *rwlock)
-{
-	return rwlock->lock == 0;
-}
-
-static inline int arch_write_can_lock(arch_rwlock_t *rwlock)
-{
-	return rwlock->lock == 0;
-}
-
 /*  Stuffs a -1 in the lock value?  */
 static inline void arch_write_lock(arch_rwlock_t *lock)
 {
@@ -177,11 +167,6 @@ static inline unsigned int arch_spin_trylock(arch_spinlock_t *lock)
 /*
  * SMP spinlocks are intended to allow only a single CPU at the lock
  */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 #define arch_spin_is_locked(x) ((x)->lock != 0)
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif
diff --git a/arch/hexagon/include/uapi/asm/bitsperlong.h b/arch/hexagon/include/uapi/asm/bitsperlong.h
index 4a658151383d..5adca0d26913 100644
--- a/arch/hexagon/include/uapi/asm/bitsperlong.h
+++ b/arch/hexagon/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/byteorder.h b/arch/hexagon/include/uapi/asm/byteorder.h
index e31f3f7d9a45..1364fa4b27e8 100644
--- a/arch/hexagon/include/uapi/asm/byteorder.h
+++ b/arch/hexagon/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/kvm_para.h b/arch/hexagon/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/hexagon/include/uapi/asm/kvm_para.h
+++ b/arch/hexagon/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/hexagon/include/uapi/asm/param.h b/arch/hexagon/include/uapi/asm/param.h
index 5cec8c0417fb..a1283866d599 100644
--- a/arch/hexagon/include/uapi/asm/param.h
+++ b/arch/hexagon/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/ptrace.h b/arch/hexagon/include/uapi/asm/ptrace.h
index 065e5b32313f..f79de05b8689 100644
--- a/arch/hexagon/include/uapi/asm/ptrace.h
+++ b/arch/hexagon/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Ptrace definitions for the Hexagon architecture
  *
diff --git a/arch/hexagon/include/uapi/asm/registers.h b/arch/hexagon/include/uapi/asm/registers.h
index e7be31840a90..d51270f3b358 100644
--- a/arch/hexagon/include/uapi/asm/registers.h
+++ b/arch/hexagon/include/uapi/asm/registers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Register definitions for the Hexagon architecture
  */
diff --git a/arch/hexagon/include/uapi/asm/setup.h b/arch/hexagon/include/uapi/asm/setup.h
index 7e3952d6221c..8ce9428b1583 100644
--- a/arch/hexagon/include/uapi/asm/setup.h
+++ b/arch/hexagon/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/sigcontext.h b/arch/hexagon/include/uapi/asm/sigcontext.h
index b6ba5369ccc6..7171edb1b8b7 100644
--- a/arch/hexagon/include/uapi/asm/sigcontext.h
+++ b/arch/hexagon/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/signal.h b/arch/hexagon/include/uapi/asm/signal.h
index 24b998888916..a08fc425387d 100644
--- a/arch/hexagon/include/uapi/asm/signal.h
+++ b/arch/hexagon/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/swab.h b/arch/hexagon/include/uapi/asm/swab.h
index 9069e9247a2e..b39f12104da4 100644
--- a/arch/hexagon/include/uapi/asm/swab.h
+++ b/arch/hexagon/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/arch/hexagon/include/uapi/asm/unistd.h b/arch/hexagon/include/uapi/asm/unistd.h
index 21517600432b..ea181e79162e 100644
--- a/arch/hexagon/include/uapi/asm/unistd.h
+++ b/arch/hexagon/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Syscall support for Hexagon
  *
diff --git a/arch/hexagon/include/uapi/asm/user.h b/arch/hexagon/include/uapi/asm/user.h
index 3dae94d9ced7..7327ec59b22f 100644
--- a/arch/hexagon/include/uapi/asm/user.h
+++ b/arch/hexagon/include/uapi/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef HEXAGON_ASM_USER_H
 #define HEXAGON_ASM_USER_H
 
diff --git a/arch/hexagon/kernel/Makefile b/arch/hexagon/kernel/Makefile
index 009228b8611c..fae3dce32fde 100644
--- a/arch/hexagon/kernel/Makefile
+++ b/arch/hexagon/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 extra-y := head.o vmlinux.lds
 
 obj-$(CONFIG_SMP) += smp.o
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 6a15083cc366..49583c5a5d44 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PGTABLE_LEVELS
 	int "Page Table Levels" if !IA64_PAGE_SIZE_64KB
 	range 3 4 if !IA64_PAGE_SIZE_64KB
@@ -46,7 +47,7 @@ config IA64
 	select ARCH_TASK_STRUCT_ALLOCATOR
 	select ARCH_THREAD_STACK_ALLOCATOR
 	select ARCH_CLOCKSOURCE_DATA
-	select GENERIC_TIME_VSYSCALL_OLD
+	select GENERIC_TIME_VSYSCALL
 	select SYSCTL_ARCH_UNALIGN_NO_WARN
 	select HAVE_MOD_ARCH_SPECIFIC
 	select MODULES_USE_ELF_RELA
diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
index de9d507ba0fd..677c409425df 100644
--- a/arch/ia64/Kconfig.debug
+++ b/arch/ia64/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
@@ -56,9 +57,4 @@ config IA64_DEBUG_IRQ
 	  and restore instructions.  It's useful for tracking down spinlock
 	  problems, but slow!  If you're unsure, select N.
 
-config SYSVIPC_COMPAT
-	bool
-	depends on COMPAT && SYSVIPC
-	default y
-
 endmenu
diff --git a/arch/ia64/dig/Makefile b/arch/ia64/dig/Makefile
index ae16ec4f6308..e7f830825470 100644
--- a/arch/ia64/dig/Makefile
+++ b/arch/ia64/dig/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # ia64/platform/dig/Makefile
 #
diff --git a/arch/ia64/dig/setup.c b/arch/ia64/dig/setup.c
index 98131e1db7a0..cc14fdce6db6 100644
--- a/arch/ia64/dig/setup.c
+++ b/arch/ia64/dig/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Platform dependent support for DIG64 platforms.
  *
diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c
index 0310078a95f8..63d8e1d2477f 100644
--- a/arch/ia64/hp/common/hwsw_iommu.c
+++ b/arch/ia64/hp/common/hwsw_iommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2004 Hewlett-Packard Development Company, L.P.
  *   Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/hp/sim/Kconfig b/arch/ia64/hp/sim/Kconfig
index d84707d55203..56fb4f1d4f7c 100644
--- a/arch/ia64/hp/sim/Kconfig
+++ b/arch/ia64/hp/sim/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 menu "HP Simulator drivers"
 	depends on IA64_HP_SIM || IA64_GENERIC
diff --git a/arch/ia64/hp/sim/Makefile b/arch/ia64/hp/sim/Makefile
index d10da47931d7..0224a13d2c5b 100644
--- a/arch/ia64/hp/sim/Makefile
+++ b/arch/ia64/hp/sim/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # ia64/platform/hp/sim/Makefile
 #
diff --git a/arch/ia64/hp/sim/boot/boot_head.S b/arch/ia64/hp/sim/boot/boot_head.S
index 8808565491fb..a7d178fb41e8 100644
--- a/arch/ia64/hp/sim/boot/boot_head.S
+++ b/arch/ia64/hp/sim/boot/boot_head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1998-2003 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/hp/sim/boot/bootloader.c b/arch/ia64/hp/sim/boot/bootloader.c
index 28f4b230b8cb..6d804608dc81 100644
--- a/arch/ia64/hp/sim/boot/bootloader.c
+++ b/arch/ia64/hp/sim/boot/bootloader.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/ia64/hp/sim/boot/bootloader.c
  *
diff --git a/arch/ia64/hp/sim/boot/bootloader.lds b/arch/ia64/hp/sim/boot/bootloader.lds
index 3977f25a1265..f3f284d6514c 100644
--- a/arch/ia64/hp/sim/boot/bootloader.lds
+++ b/arch/ia64/hp/sim/boot/bootloader.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 OUTPUT_FORMAT("elf64-ia64-little")
 OUTPUT_ARCH(ia64)
 ENTRY(_start)
diff --git a/arch/ia64/hp/sim/boot/fw-emu.c b/arch/ia64/hp/sim/boot/fw-emu.c
index 87bf9ad8cf0f..517fb2822e04 100644
--- a/arch/ia64/hp/sim/boot/fw-emu.c
+++ b/arch/ia64/hp/sim/boot/fw-emu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PAL & SAL emulation.
  *
diff --git a/arch/ia64/hp/sim/boot/ssc.h b/arch/ia64/hp/sim/boot/ssc.h
index 3b94c03e43a9..88752c7509e0 100644
--- a/arch/ia64/hp/sim/boot/ssc.h
+++ b/arch/ia64/hp/sim/boot/ssc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1998-2003 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/hp/sim/hpsim.S b/arch/ia64/hp/sim/hpsim.S
index ff16e8a857d1..44b4d53e1689 100644
--- a/arch/ia64/hp/sim/hpsim.S
+++ b/arch/ia64/hp/sim/hpsim.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/asmmacro.h>
 
 /*
diff --git a/arch/ia64/hp/sim/hpsim_console.c b/arch/ia64/hp/sim/hpsim_console.c
index 01663bc42b1a..bffd9f67a8a1 100644
--- a/arch/ia64/hp/sim/hpsim_console.c
+++ b/arch/ia64/hp/sim/hpsim_console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Platform dependent support for HP simulator.
  *
diff --git a/arch/ia64/hp/sim/hpsim_irq.c b/arch/ia64/hp/sim/hpsim_irq.c
index 0aa70ebda49d..2f1cc59650ab 100644
--- a/arch/ia64/hp/sim/hpsim_irq.c
+++ b/arch/ia64/hp/sim/hpsim_irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Platform dependent support for HP simulator.
  *
diff --git a/arch/ia64/hp/sim/hpsim_setup.c b/arch/ia64/hp/sim/hpsim_setup.c
index 664a5402a695..41d21d51dc4d 100644
--- a/arch/ia64/hp/sim/hpsim_setup.c
+++ b/arch/ia64/hp/sim/hpsim_setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Platform dependent support for HP simulator.
  *
diff --git a/arch/ia64/hp/sim/hpsim_ssc.h b/arch/ia64/hp/sim/hpsim_ssc.h
index bfa3906274b3..6fd97a487811 100644
--- a/arch/ia64/hp/sim/hpsim_ssc.h
+++ b/arch/ia64/hp/sim/hpsim_ssc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform dependent support for HP simulator.
  *
diff --git a/arch/ia64/hp/sim/simeth.c b/arch/ia64/hp/sim/simeth.c
index d1b04c4c95e3..f39ef2b4ed72 100644
--- a/arch/ia64/hp/sim/simeth.c
+++ b/arch/ia64/hp/sim/simeth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simulated Ethernet Driver
  *
diff --git a/arch/ia64/hp/sim/simscsi.c b/arch/ia64/hp/sim/simscsi.c
index 085047f3a545..7e1426e76d96 100644
--- a/arch/ia64/hp/sim/simscsi.c
+++ b/arch/ia64/hp/sim/simscsi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simulated SCSI driver.
  *
diff --git a/arch/ia64/hp/sim/simserial.c b/arch/ia64/hp/sim/simserial.c
index 70d52e9bb575..a419ccf33cde 100644
--- a/arch/ia64/hp/sim/simserial.c
+++ b/arch/ia64/hp/sim/simserial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simulated Serial Driver (fake serial)
  *
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index c86a947f5368..a3d0211970e9 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -112,6 +112,8 @@ static inline void arch_acpi_set_pdc_bits(u32 *buf)
 	buf[2] |= ACPI_PDC_EST_CAPABILITY_SMP;
 }
 
+#define acpi_unlazy_tlb(x)
+
 #ifdef CONFIG_ACPI_NUMA
 extern cpumask_t early_cpu_possible_map;
 #define for_each_possible_early_cpu(cpu)  \
diff --git a/arch/ia64/include/asm/agp.h b/arch/ia64/include/asm/agp.h
index 01d09c401c5c..2b451c4496da 100644
--- a/arch/ia64/include/asm/agp.h
+++ b/arch/ia64/include/asm/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_AGP_H
 #define _ASM_IA64_AGP_H
 
diff --git a/arch/ia64/include/asm/asm-prototypes.h b/arch/ia64/include/asm/asm-prototypes.h
index a2c139808cfe..c711536674e3 100644
--- a/arch/ia64/include/asm/asm-prototypes.h
+++ b/arch/ia64/include/asm/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_ASM_PROTOTYPES_H
 #define _ASM_IA64_ASM_PROTOTYPES_H
 
diff --git a/arch/ia64/include/asm/asmmacro.h b/arch/ia64/include/asm/asmmacro.h
index 3ab6d75aa3db..52619c517f09 100644
--- a/arch/ia64/include/asm/asmmacro.h
+++ b/arch/ia64/include/asm/asmmacro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_ASMMACRO_H
 #define _ASM_IA64_ASMMACRO_H
 
diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
index 65d4bb2b6685..28e02c99be6d 100644
--- a/arch/ia64/include/asm/atomic.h
+++ b/arch/ia64/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_ATOMIC_H
 #define _ASM_IA64_ATOMIC_H
 
diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
index 588f1614cafc..751cdd353446 100644
--- a/arch/ia64/include/asm/barrier.h
+++ b/arch/ia64/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Memory barrier definitions.  This is based on information published
  * in the Processor Abstraction Layer and the System Abstraction Layer
diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h
index 71e8145243ee..56a774bf13fa 100644
--- a/arch/ia64/include/asm/bitops.h
+++ b/arch/ia64/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_BITOPS_H
 #define _ASM_IA64_BITOPS_H
 
diff --git a/arch/ia64/include/asm/bug.h b/arch/ia64/include/asm/bug.h
index 823616b5020b..bd3eeb8d1cfa 100644
--- a/arch/ia64/include/asm/bug.h
+++ b/arch/ia64/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_BUG_H
 #define _ASM_IA64_BUG_H
 
diff --git a/arch/ia64/include/asm/bugs.h b/arch/ia64/include/asm/bugs.h
index 433523e3b2ed..0d6b9bded56c 100644
--- a/arch/ia64/include/asm/bugs.h
+++ b/arch/ia64/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is included by init/main.c to check for architecture-dependent bugs.
  *
diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
index 988254a7d349..4eb6f742d14f 100644
--- a/arch/ia64/include/asm/cache.h
+++ b/arch/ia64/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_CACHE_H
 #define _ASM_IA64_CACHE_H
 
diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h
index 429eefc93ee7..6d3478f8abc8 100644
--- a/arch/ia64/include/asm/cacheflush.h
+++ b/arch/ia64/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_CACHEFLUSH_H
 #define _ASM_IA64_CACHEFLUSH_H
 
diff --git a/arch/ia64/include/asm/checksum.h b/arch/ia64/include/asm/checksum.h
index 7accf54162b2..0ed18bc3f6cf 100644
--- a/arch/ia64/include/asm/checksum.h
+++ b/arch/ia64/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_CHECKSUM_H
 #define _ASM_IA64_CHECKSUM_H
 
diff --git a/arch/ia64/include/asm/clocksource.h b/arch/ia64/include/asm/clocksource.h
index 5c8596e4cb02..71a517751afa 100644
--- a/arch/ia64/include/asm/clocksource.h
+++ b/arch/ia64/include/asm/clocksource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* IA64-specific clocksource additions */
 
 #ifndef _ASM_IA64_CLOCKSOURCE_H
diff --git a/arch/ia64/include/asm/cpu.h b/arch/ia64/include/asm/cpu.h
index fcca30b9f110..db125df9e088 100644
--- a/arch/ia64/include/asm/cpu.h
+++ b/arch/ia64/include/asm/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_CPU_H_
 #define _ASM_IA64_CPU_H_
 
diff --git a/arch/ia64/include/asm/current.h b/arch/ia64/include/asm/current.h
index c659f90fbfd9..86fbcc88dff2 100644
--- a/arch/ia64/include/asm/current.h
+++ b/arch/ia64/include/asm/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_CURRENT_H
 #define _ASM_IA64_CURRENT_H
 
diff --git a/arch/ia64/include/asm/cyclone.h b/arch/ia64/include/asm/cyclone.h
index 88f6500e84ab..a481393647e9 100644
--- a/arch/ia64/include/asm/cyclone.h
+++ b/arch/ia64/include/asm/cyclone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_IA64_CYCLONE_H
 #define ASM_IA64_CYCLONE_H
 
diff --git a/arch/ia64/include/asm/delay.h b/arch/ia64/include/asm/delay.h
index a30a62f235e1..0227ac586107 100644
--- a/arch/ia64/include/asm/delay.h
+++ b/arch/ia64/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_DELAY_H
 #define _ASM_IA64_DELAY_H
 
diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
index 3ce5ab4339f3..5da9421fb0ff 100644
--- a/arch/ia64/include/asm/dma-mapping.h
+++ b/arch/ia64/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_DMA_MAPPING_H
 #define _ASM_IA64_DMA_MAPPING_H
 
diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
index 4d97f60f1ef5..186850eec934 100644
--- a/arch/ia64/include/asm/dma.h
+++ b/arch/ia64/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_DMA_H
 #define _ASM_IA64_DMA_H
 
diff --git a/arch/ia64/include/asm/dmi.h b/arch/ia64/include/asm/dmi.h
index f365a61f5c71..ecd9e0a0f5f9 100644
--- a/arch/ia64/include/asm/dmi.h
+++ b/arch/ia64/include/asm/dmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_DMI_H
 #define _ASM_DMI_H 1
 
diff --git a/arch/ia64/include/asm/early_ioremap.h b/arch/ia64/include/asm/early_ioremap.h
index eec9e1d1b833..934191b1e2e3 100644
--- a/arch/ia64/include/asm/early_ioremap.h
+++ b/arch/ia64/include/asm/early_ioremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_EARLY_IOREMAP_H
 #define _ASM_IA64_EARLY_IOREMAP_H
 
diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
index 5a83c5cc3dc8..c70bb9c11f52 100644
--- a/arch/ia64/include/asm/elf.h
+++ b/arch/ia64/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_ELF_H
 #define _ASM_IA64_ELF_H
 
diff --git a/arch/ia64/include/asm/esi.h b/arch/ia64/include/asm/esi.h
index 40991c6ba647..56d1310af06e 100644
--- a/arch/ia64/include/asm/esi.h
+++ b/arch/ia64/include/asm/esi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ESI service calls.
  *
diff --git a/arch/ia64/include/asm/extable.h b/arch/ia64/include/asm/extable.h
index 20376e71eab4..83eac6aa0639 100644
--- a/arch/ia64/include/asm/extable.h
+++ b/arch/ia64/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_EXTABLE_H
 #define _ASM_IA64_EXTABLE_H
 
diff --git a/arch/ia64/include/asm/fb.h b/arch/ia64/include/asm/fb.h
index 89a397cee90a..5f95782bfa46 100644
--- a/arch/ia64/include/asm/fb.h
+++ b/arch/ia64/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/ia64/include/asm/fpswa.h b/arch/ia64/include/asm/fpswa.h
index 62edfceadaa6..2a0c23728b26 100644
--- a/arch/ia64/include/asm/fpswa.h
+++ b/arch/ia64/include/asm/fpswa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_FPSWA_H
 #define _ASM_IA64_FPSWA_H
 
diff --git a/arch/ia64/include/asm/ftrace.h b/arch/ia64/include/asm/ftrace.h
index fbd1a2470cae..a07a8e575453 100644
--- a/arch/ia64/include/asm/ftrace.h
+++ b/arch/ia64/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_FTRACE_H
 #define _ASM_IA64_FTRACE_H
 
diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
index 6d67dc1eaf2b..db2dd85918c2 100644
--- a/arch/ia64/include/asm/futex.h
+++ b/arch/ia64/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FUTEX_H
 #define _ASM_FUTEX_H
 
diff --git a/arch/ia64/include/asm/gcc_intrin.h b/arch/ia64/include/asm/gcc_intrin.h
index f9495b1757a8..83f230b23867 100644
--- a/arch/ia64/include/asm/gcc_intrin.h
+++ b/arch/ia64/include/asm/gcc_intrin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Copyright (C) 2002,2003 Jun Nakajima <jun.nakajima@intel.com>
diff --git a/arch/ia64/include/asm/hardirq.h b/arch/ia64/include/asm/hardirq.h
index 8fb7d33a661f..bdc4669c71c3 100644
--- a/arch/ia64/include/asm/hardirq.h
+++ b/arch/ia64/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_HARDIRQ_H
 #define _ASM_IA64_HARDIRQ_H
 
diff --git a/arch/ia64/include/asm/hpsim.h b/arch/ia64/include/asm/hpsim.h
index 0fe50225daa4..00fbd5cc8ab8 100644
--- a/arch/ia64/include/asm/hpsim.h
+++ b/arch/ia64/include/asm/hpsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMIA64_HPSIM_H
 #define _ASMIA64_HPSIM_H
 
diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
index ef65f026b11e..74d2a5540aaf 100644
--- a/arch/ia64/include/asm/hugetlb.h
+++ b/arch/ia64/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_HUGETLB_H
 #define _ASM_IA64_HUGETLB_H
 
diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h
index 74347ebf7d68..5dd3c6485c3a 100644
--- a/arch/ia64/include/asm/hw_irq.h
+++ b/arch/ia64/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_HW_IRQ_H
 #define _ASM_IA64_HW_IRQ_H
 
diff --git a/arch/ia64/include/asm/idle.h b/arch/ia64/include/asm/idle.h
index b7685015a8ba..97c55b97e0ba 100644
--- a/arch/ia64/include/asm/idle.h
+++ b/arch/ia64/include/asm/idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_IDLE_H
 #define _ASM_IA64_IDLE_H
 
diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
index ec970a920132..035b17fe12ef 100644
--- a/arch/ia64/include/asm/intrinsics.h
+++ b/arch/ia64/include/asm/intrinsics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Compiler-dependent intrinsics.
  *
diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index a2540e21f919..fb0651961e2c 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_IO_H
 #define _ASM_IA64_IO_H
 
diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 1d1212901ae7..156b9d8e1932 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_IOMMU_H
 #define _ASM_IA64_IOMMU_H 1
 
diff --git a/arch/ia64/include/asm/iommu_table.h b/arch/ia64/include/asm/iommu_table.h
index 92c8d36ae5ae..cc96116ac276 100644
--- a/arch/ia64/include/asm/iommu_table.h
+++ b/arch/ia64/include/asm/iommu_table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_IOMMU_TABLE_H
 #define _ASM_IA64_IOMMU_TABLE_H
 
diff --git a/arch/ia64/include/asm/iosapic.h b/arch/ia64/include/asm/iosapic.h
index 4ae1fbd7f10e..f48556cb8afc 100644
--- a/arch/ia64/include/asm/iosapic.h
+++ b/arch/ia64/include/asm/iosapic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IA64_IOSAPIC_H
 #define __ASM_IA64_IOSAPIC_H
 
diff --git a/arch/ia64/include/asm/irq.h b/arch/ia64/include/asm/irq.h
index 820667cbea7e..8b84a55ed38a 100644
--- a/arch/ia64/include/asm/irq.h
+++ b/arch/ia64/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_IRQ_H
 #define _ASM_IA64_IRQ_H
 
diff --git a/arch/ia64/include/asm/irq_remapping.h b/arch/ia64/include/asm/irq_remapping.h
index a8687b1d8906..547a6e87018c 100644
--- a/arch/ia64/include/asm/irq_remapping.h
+++ b/arch/ia64/include/asm/irq_remapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IA64_INTR_REMAPPING_H
 #define __IA64_INTR_REMAPPING_H
 #define irq_remapping_enabled 0
diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h
index cec6c06b52c0..d97f8435be4f 100644
--- a/arch/ia64/include/asm/irqflags.h
+++ b/arch/ia64/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IRQ flags defines.
  *
diff --git a/arch/ia64/include/asm/kexec.h b/arch/ia64/include/asm/kexec.h
index aea2b81b03a3..294b1e1ebd2d 100644
--- a/arch/ia64/include/asm/kexec.h
+++ b/arch/ia64/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_KEXEC_H
 #define _ASM_IA64_KEXEC_H
 
diff --git a/arch/ia64/include/asm/kmap_types.h b/arch/ia64/include/asm/kmap_types.h
index 05d5f9996105..5c268cf7c2bd 100644
--- a/arch/ia64/include/asm/kmap_types.h
+++ b/arch/ia64/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_KMAP_TYPES_H
 #define _ASM_IA64_KMAP_TYPES_H
 
diff --git a/arch/ia64/include/asm/kregs.h b/arch/ia64/include/asm/kregs.h
index 39e65f6639f5..44113b75e4eb 100644
--- a/arch/ia64/include/asm/kregs.h
+++ b/arch/ia64/include/asm/kregs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_KREGS_H
 #define _ASM_IA64_KREGS_H
 
diff --git a/arch/ia64/include/asm/libata-portmap.h b/arch/ia64/include/asm/libata-portmap.h
index 7a1f8310596b..757f84e5dc6e 100644
--- a/arch/ia64/include/asm/libata-portmap.h
+++ b/arch/ia64/include/asm/libata-portmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IA64_LIBATA_PORTMAP_H
 #define __ASM_IA64_LIBATA_PORTMAP_H
 
diff --git a/arch/ia64/include/asm/linkage.h b/arch/ia64/include/asm/linkage.h
index 787575701f1c..5178af560925 100644
--- a/arch/ia64/include/asm/linkage.h
+++ b/arch/ia64/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index af285c423e1e..267f4f170191 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine vector for IA-64.
  *
diff --git a/arch/ia64/include/asm/machvec_dig.h b/arch/ia64/include/asm/machvec_dig.h
index 1f7403a2fbee..bc230f69faeb 100644
--- a/arch/ia64/include/asm/machvec_dig.h
+++ b/arch/ia64/include/asm/machvec_dig.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MACHVEC_DIG_h
 #define _ASM_IA64_MACHVEC_DIG_h
 
diff --git a/arch/ia64/include/asm/machvec_dig_vtd.h b/arch/ia64/include/asm/machvec_dig_vtd.h
index 44308b4c3f6e..bb44eb9039dd 100644
--- a/arch/ia64/include/asm/machvec_dig_vtd.h
+++ b/arch/ia64/include/asm/machvec_dig_vtd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MACHVEC_DIG_VTD_h
 #define _ASM_IA64_MACHVEC_DIG_VTD_h
 
diff --git a/arch/ia64/include/asm/machvec_hpsim.h b/arch/ia64/include/asm/machvec_hpsim.h
index e75711279366..056f8405822e 100644
--- a/arch/ia64/include/asm/machvec_hpsim.h
+++ b/arch/ia64/include/asm/machvec_hpsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MACHVEC_HPSIM_h
 #define _ASM_IA64_MACHVEC_HPSIM_h
 
diff --git a/arch/ia64/include/asm/machvec_hpzx1.h b/arch/ia64/include/asm/machvec_hpzx1.h
index c74d3159e9eb..5299ac38bfb6 100644
--- a/arch/ia64/include/asm/machvec_hpzx1.h
+++ b/arch/ia64/include/asm/machvec_hpzx1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MACHVEC_HPZX1_h
 #define _ASM_IA64_MACHVEC_HPZX1_h
 
diff --git a/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h b/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h
index 906ef6210774..5aec6a008c61 100644
--- a/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h
+++ b/arch/ia64/include/asm/machvec_hpzx1_swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h
 #define _ASM_IA64_MACHVEC_HPZX1_SWIOTLB_h
 
diff --git a/arch/ia64/include/asm/machvec_init.h b/arch/ia64/include/asm/machvec_init.h
index 37a469849ab9..2b32fd06b7c6 100644
--- a/arch/ia64/include/asm/machvec_init.h
+++ b/arch/ia64/include/asm/machvec_init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/iommu.h>
 #include <asm/machvec.h>
 
diff --git a/arch/ia64/include/asm/mca.h b/arch/ia64/include/asm/mca.h
index 8c7096168716..726df17f1b51 100644
--- a/arch/ia64/include/asm/mca.h
+++ b/arch/ia64/include/asm/mca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	mca.h
  * Purpose:	Machine check handling specific defines
diff --git a/arch/ia64/include/asm/mca_asm.h b/arch/ia64/include/asm/mca_asm.h
index 13c1d4994d49..e3ab1f41f1c3 100644
--- a/arch/ia64/include/asm/mca_asm.h
+++ b/arch/ia64/include/asm/mca_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	mca_asm.h
  * Purpose:	Machine check handling specific defines
diff --git a/arch/ia64/include/asm/mman.h b/arch/ia64/include/asm/mman.h
index fdd5f5229f78..15cf100add0e 100644
--- a/arch/ia64/include/asm/mman.h
+++ b/arch/ia64/include/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Based on <asm-i386/mman.h>.
  *
diff --git a/arch/ia64/include/asm/mmu.h b/arch/ia64/include/asm/mmu.h
index 611432ba579c..f75f44f531c2 100644
--- a/arch/ia64/include/asm/mmu.h
+++ b/arch/ia64/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/ia64/include/asm/mmu_context.h b/arch/ia64/include/asm/mmu_context.h
index 9b99368633b5..2da0e2eb036b 100644
--- a/arch/ia64/include/asm/mmu_context.h
+++ b/arch/ia64/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MMU_CONTEXT_H
 #define _ASM_IA64_MMU_CONTEXT_H
 
diff --git a/arch/ia64/include/asm/module.h b/arch/ia64/include/asm/module.h
index f31894b2a354..f319144260ce 100644
--- a/arch/ia64/include/asm/module.h
+++ b/arch/ia64/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_MODULE_H
 #define _ASM_IA64_MODULE_H
 
diff --git a/arch/ia64/include/asm/msidef.h b/arch/ia64/include/asm/msidef.h
index 592c1047a0c5..18d0e4226748 100644
--- a/arch/ia64/include/asm/msidef.h
+++ b/arch/ia64/include/asm/msidef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IA64_MSI_DEF_H
 #define _IA64_MSI_DEF_H
 
diff --git a/arch/ia64/include/asm/page.h b/arch/ia64/include/asm/page.h
index e8c486ef0d76..5798bd2b462c 100644
--- a/arch/ia64/include/asm/page.h
+++ b/arch/ia64/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PAGE_H
 #define _ASM_IA64_PAGE_H
 /*
diff --git a/arch/ia64/include/asm/pal.h b/arch/ia64/include/asm/pal.h
index 2e69284df8e7..f9d2b3b2dfad 100644
--- a/arch/ia64/include/asm/pal.h
+++ b/arch/ia64/include/asm/pal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PAL_H
 #define _ASM_IA64_PAL_H
 
diff --git a/arch/ia64/include/asm/param.h b/arch/ia64/include/asm/param.h
index 1295913d6a82..f0b786227c40 100644
--- a/arch/ia64/include/asm/param.h
+++ b/arch/ia64/include/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Fundamental kernel parameters.
  *
diff --git a/arch/ia64/include/asm/parport.h b/arch/ia64/include/asm/parport.h
index 638b4d271b99..360ca9bf2f6f 100644
--- a/arch/ia64/include/asm/parport.h
+++ b/arch/ia64/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * parport.h: platform-specific PC-style parport initialisation
  *
diff --git a/arch/ia64/include/asm/patch.h b/arch/ia64/include/asm/patch.h
index 295fe6ab4584..bd487ed22bf5 100644
--- a/arch/ia64/include/asm/patch.h
+++ b/arch/ia64/include/asm/patch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PATCH_H
 #define _ASM_IA64_PATCH_H
 
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 6459f2d46200..e20d77f6a3c1 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PCI_H
 #define _ASM_IA64_PCI_H
 
diff --git a/arch/ia64/include/asm/percpu.h b/arch/ia64/include/asm/percpu.h
index b9295793a5e2..f357b9bb3576 100644
--- a/arch/ia64/include/asm/percpu.h
+++ b/arch/ia64/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PERCPU_H
 #define _ASM_IA64_PERCPU_H
 
diff --git a/arch/ia64/include/asm/perfmon.h b/arch/ia64/include/asm/perfmon.h
index 15476dd3a8b0..e0545869cc8c 100644
--- a/arch/ia64/include/asm/perfmon.h
+++ b/arch/ia64/include/asm/perfmon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2001-2003 Hewlett-Packard Co
  *               Stephane Eranian <eranian@hpl.hp.com>
diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index f5e70e961948..3ee5362f2661 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PGALLOC_H
 #define _ASM_IA64_PGALLOC_H
 
diff --git a/arch/ia64/include/asm/pgtable.h b/arch/ia64/include/asm/pgtable.h
index 6cc22c8d8923..165827774bea 100644
--- a/arch/ia64/include/asm/pgtable.h
+++ b/arch/ia64/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PGTABLE_H
 #define _ASM_IA64_PGTABLE_H
 
diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index ab982f07ea68..10061ccf0440 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_PROCESSOR_H
 #define _ASM_IA64_PROCESSOR_H
 
diff --git a/arch/ia64/include/asm/ptrace.h b/arch/ia64/include/asm/ptrace.h
index 845143990a1d..7ff574d56429 100644
--- a/arch/ia64/include/asm/ptrace.h
+++ b/arch/ia64/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1998-2004 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/include/asm/rwsem.h b/arch/ia64/include/asm/rwsem.h
index 8fa98dd303b4..917910607e0e 100644
--- a/arch/ia64/include/asm/rwsem.h
+++ b/arch/ia64/include/asm/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * R/W semaphores for ia64
  *
@@ -37,15 +38,31 @@
 /*
  * lock for reading
  */
-static inline void
-__down_read (struct rw_semaphore *sem)
+static inline int
+___down_read (struct rw_semaphore *sem)
 {
 	long result = ia64_fetchadd8_acq((unsigned long *)&sem->count.counter, 1);
 
-	if (result < 0)
+	return (result < 0);
+}
+
+static inline void
+__down_read (struct rw_semaphore *sem)
+{
+	if (___down_read(sem))
 		rwsem_down_read_failed(sem);
 }
 
+static inline int
+__down_read_killable (struct rw_semaphore *sem)
+{
+	if (___down_read(sem))
+		if (IS_ERR(rwsem_down_read_failed_killable(sem)))
+			return -EINTR;
+
+	return 0;
+}
+
 /*
  * lock for writing
  */
@@ -72,9 +89,10 @@ __down_write (struct rw_semaphore *sem)
 static inline int
 __down_write_killable (struct rw_semaphore *sem)
 {
-	if (___down_write(sem))
+	if (___down_write(sem)) {
 		if (IS_ERR(rwsem_down_write_failed_killable(sem)))
 			return -EINTR;
+	}
 
 	return 0;
 }
diff --git a/arch/ia64/include/asm/sal.h b/arch/ia64/include/asm/sal.h
index e504f382115e..588f33156da6 100644
--- a/arch/ia64/include/asm/sal.h
+++ b/arch/ia64/include/asm/sal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_SAL_H
 #define _ASM_IA64_SAL_H
 
diff --git a/arch/ia64/include/asm/sections.h b/arch/ia64/include/asm/sections.h
index 2ab2003698ef..f3481408594e 100644
--- a/arch/ia64/include/asm/sections.h
+++ b/arch/ia64/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_SECTIONS_H
 #define _ASM_IA64_SECTIONS_H
 
diff --git a/arch/ia64/include/asm/shmparam.h b/arch/ia64/include/asm/shmparam.h
index d07508dc54ae..43bd8324ab71 100644
--- a/arch/ia64/include/asm/shmparam.h
+++ b/arch/ia64/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_SHMPARAM_H
 #define _ASM_IA64_SHMPARAM_H
 
diff --git a/arch/ia64/include/asm/signal.h b/arch/ia64/include/asm/signal.h
index c62afa4a0dc2..80f067f9b3ce 100644
--- a/arch/ia64/include/asm/signal.h
+++ b/arch/ia64/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Modified 1998-2001, 2003
  *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
diff --git a/arch/ia64/include/asm/smp.h b/arch/ia64/include/asm/smp.h
index fea21e986022..7847ae40a181 100644
--- a/arch/ia64/include/asm/smp.h
+++ b/arch/ia64/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SMP Support
  *
diff --git a/arch/ia64/include/asm/sn/bte.h b/arch/ia64/include/asm/sn/bte.h
index cc6c4dbf53af..cd71ab5faf62 100644
--- a/arch/ia64/include/asm/sn/bte.h
+++ b/arch/ia64/include/asm/sn/bte.h
@@ -17,6 +17,8 @@
 #include <asm/sn/types.h>
 #include <asm/sn/shub_mmr.h>
 
+struct nodepda_s;
+
 #define IBCT_NOTIFY             (0x1UL << 4)
 #define IBCT_ZFIL_MODE          (0x1UL << 0)
 
@@ -210,7 +212,7 @@ struct bteinfo_s {
  */
 extern bte_result_t bte_copy(u64, u64, u64, u64, void *);
 extern bte_result_t bte_unaligned_copy(u64, u64, u64, u64);
-extern void bte_error_handler(unsigned long);
+extern void bte_error_handler(struct nodepda_s *);
 
 #define bte_zero(dest, len, mode, notification) \
 	bte_copy(0, dest, len, ((mode) | BTE_ZERO_FILL), notification)
diff --git a/arch/ia64/include/asm/sn/ioc3.h b/arch/ia64/include/asm/sn/ioc3.h
index 6eaa3cc1e919..d4a524951df3 100644
--- a/arch/ia64/include/asm/sn/ioc3.h
+++ b/arch/ia64/include/asm/sn/ioc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2005 Silicon Graphics, Inc.
  */
diff --git a/arch/ia64/include/asm/sparsemem.h b/arch/ia64/include/asm/sparsemem.h
index 67a7c40ec27f..336d0570e1fa 100644
--- a/arch/ia64/include/asm/sparsemem.h
+++ b/arch/ia64/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_SPARSEMEM_H
 #define _ASM_IA64_SPARSEMEM_H
 
diff --git a/arch/ia64/include/asm/spinlock.h b/arch/ia64/include/asm/spinlock.h
index df2c121164b8..afd0b3121b4c 100644
--- a/arch/ia64/include/asm/spinlock.h
+++ b/arch/ia64/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_SPINLOCK_H
 #define _ASM_IA64_SPINLOCK_H
 
@@ -61,7 +62,7 @@ static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock)
 
 static __always_inline int __ticket_spin_trylock(arch_spinlock_t *lock)
 {
-	int tmp = ACCESS_ONCE(lock->lock);
+	int tmp = READ_ONCE(lock->lock);
 
 	if (!(((tmp >> TICKET_SHIFT) ^ tmp) & TICKET_MASK))
 		return ia64_cmpxchg(acq, &lock->lock, tmp, tmp + 1, sizeof (tmp)) == tmp;
@@ -73,19 +74,19 @@ static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
 	unsigned short	*p = (unsigned short *)&lock->lock + 1, tmp;
 
 	asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p));
-	ACCESS_ONCE(*p) = (tmp + 2) & ~1;
+	WRITE_ONCE(*p, (tmp + 2) & ~1);
 }
 
 static inline int __ticket_spin_is_locked(arch_spinlock_t *lock)
 {
-	long tmp = ACCESS_ONCE(lock->lock);
+	long tmp = READ_ONCE(lock->lock);
 
 	return !!(((tmp >> TICKET_SHIFT) ^ tmp) & TICKET_MASK);
 }
 
 static inline int __ticket_spin_is_contended(arch_spinlock_t *lock)
 {
-	long tmp = ACCESS_ONCE(lock->lock);
+	long tmp = READ_ONCE(lock->lock);
 
 	return ((tmp - (tmp >> TICKET_SHIFT)) & TICKET_MASK) > 1;
 }
@@ -126,9 +127,7 @@ static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
 {
 	arch_spin_lock(lock);
 }
-
-#define arch_read_can_lock(rw)		(*(volatile int *)(rw) >= 0)
-#define arch_write_can_lock(rw)	(*(volatile int *)(rw) == 0)
+#define arch_spin_lock_flags	arch_spin_lock_flags
 
 #ifdef ASM_SUPPORTED
 
@@ -156,6 +155,7 @@ arch_read_lock_flags(arch_rwlock_t *lock, unsigned long flags)
 		: "p6", "p7", "r2", "memory");
 }
 
+#define arch_read_lock_flags arch_read_lock_flags
 #define arch_read_lock(lock) arch_read_lock_flags(lock, 0)
 
 #else /* !ASM_SUPPORTED */
@@ -208,6 +208,7 @@ arch_write_lock_flags(arch_rwlock_t *lock, unsigned long flags)
 		: "ar.ccv", "p6", "p7", "r2", "r29", "memory");
 }
 
+#define arch_write_lock_flags arch_write_lock_flags
 #define arch_write_lock(rw) arch_write_lock_flags(rw, 0)
 
 #define arch_write_trylock(rw)							\
@@ -231,8 +232,6 @@ static inline void arch_write_unlock(arch_rwlock_t *x)
 
 #else /* !ASM_SUPPORTED */
 
-#define arch_write_lock_flags(l, flags) arch_write_lock(l)
-
 #define arch_write_lock(l)								\
 ({											\
 	__u64 ia64_val, ia64_set_val = ia64_dep_mi(-1, 0, 31, 1);			\
@@ -272,8 +271,4 @@ static inline int arch_read_trylock(arch_rwlock_t *x)
 	return (u32)ia64_cmpxchg4_acq((__u32 *)(x), new.word, old.word) == old.word;
 }
 
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /*  _ASM_IA64_SPINLOCK_H */
diff --git a/arch/ia64/include/asm/spinlock_types.h b/arch/ia64/include/asm/spinlock_types.h
index e2b42a52a6d3..6e345fefcdca 100644
--- a/arch/ia64/include/asm/spinlock_types.h
+++ b/arch/ia64/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_SPINLOCK_TYPES_H
 #define _ASM_IA64_SPINLOCK_TYPES_H
 
diff --git a/arch/ia64/include/asm/string.h b/arch/ia64/include/asm/string.h
index 85fd65c52a8c..8b84df0dbfad 100644
--- a/arch/ia64/include/asm/string.h
+++ b/arch/ia64/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_STRING_H
 #define _ASM_IA64_STRING_H
 
diff --git a/arch/ia64/include/asm/swiotlb.h b/arch/ia64/include/asm/swiotlb.h
index f0acde68aaea..841e2c7d0b21 100644
--- a/arch/ia64/include/asm/swiotlb.h
+++ b/arch/ia64/include/asm/swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_IA64__SWIOTLB_H
 #define ASM_IA64__SWIOTLB_H
 
diff --git a/arch/ia64/include/asm/switch_to.h b/arch/ia64/include/asm/switch_to.h
index e8f3585e7e7a..b10f31ec522c 100644
--- a/arch/ia64/include/asm/switch_to.h
+++ b/arch/ia64/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Low-level task switching. This is based on information published in
  * the Processor Abstraction Layer and the System Abstraction Layer
diff --git a/arch/ia64/include/asm/termios.h b/arch/ia64/include/asm/termios.h
index a42f870ca4f6..589c026444cc 100644
--- a/arch/ia64/include/asm/termios.h
+++ b/arch/ia64/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Modified 1999
  *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index 8742d741d19a..1d172a4119a7 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2002-2003 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/include/asm/timex.h b/arch/ia64/include/asm/timex.h
index 86c7db861180..869a3ac6bf23 100644
--- a/arch/ia64/include/asm/timex.h
+++ b/arch/ia64/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_TIMEX_H
 #define _ASM_IA64_TIMEX_H
 
diff --git a/arch/ia64/include/asm/tlb.h b/arch/ia64/include/asm/tlb.h
index cbe5ac3699bf..44f0ac0df308 100644
--- a/arch/ia64/include/asm/tlb.h
+++ b/arch/ia64/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_TLB_H
 #define _ASM_IA64_TLB_H
 /*
diff --git a/arch/ia64/include/asm/tlbflush.h b/arch/ia64/include/asm/tlbflush.h
index 3be25dfed164..25e280810f6c 100644
--- a/arch/ia64/include/asm/tlbflush.h
+++ b/arch/ia64/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_TLBFLUSH_H
 #define _ASM_IA64_TLBFLUSH_H
 
diff --git a/arch/ia64/include/asm/types.h b/arch/ia64/include/asm/types.h
index 4c351b169da2..5ddc7703de99 100644
--- a/arch/ia64/include/asm/types.h
+++ b/arch/ia64/include/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is never included by application software unless explicitly
  * requested (e.g., via linux/types.h) in which case the application is
diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h
index 0890ded638f0..a74524f2d625 100644
--- a/arch/ia64/include/asm/uaccess.h
+++ b/arch/ia64/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_UACCESS_H
 #define _ASM_IA64_UACCESS_H
 
diff --git a/arch/ia64/include/asm/unaligned.h b/arch/ia64/include/asm/unaligned.h
index 7bddc7f58584..328942e3cbce 100644
--- a/arch/ia64/include/asm/unaligned.h
+++ b/arch/ia64/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_UNALIGNED_H
 #define _ASM_IA64_UNALIGNED_H
 
diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h
index 8c85209753ab..ffb705dc9c13 100644
--- a/arch/ia64/include/asm/unistd.h
+++ b/arch/ia64/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IA-64 Linux syscall numbers and inline-functions.
  *
diff --git a/arch/ia64/include/asm/unwind.h b/arch/ia64/include/asm/unwind.h
index 1af3875f1a57..c5bd4b3e3a36 100644
--- a/arch/ia64/include/asm/unwind.h
+++ b/arch/ia64/include/asm/unwind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_UNWIND_H
 #define _ASM_IA64_UNWIND_H
 
diff --git a/arch/ia64/include/asm/user.h b/arch/ia64/include/asm/user.h
index 8b9821110348..0ba486651b7c 100644
--- a/arch/ia64/include/asm/user.h
+++ b/arch/ia64/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_USER_H
 #define _ASM_IA64_USER_H
 
diff --git a/arch/ia64/include/asm/ustack.h b/arch/ia64/include/asm/ustack.h
index b275401b96d3..112d40a0fec2 100644
--- a/arch/ia64/include/asm/ustack.h
+++ b/arch/ia64/include/asm/ustack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_USTACK_H
 #define _ASM_IA64_USTACK_H
 
diff --git a/arch/ia64/include/asm/uv/uv.h b/arch/ia64/include/asm/uv/uv.h
index 8f6cbaa742e9..71df93ee3bc0 100644
--- a/arch/ia64/include/asm/uv/uv.h
+++ b/arch/ia64/include/asm/uv/uv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IA64_UV_UV_H
 #define _ASM_IA64_UV_UV_H
 
diff --git a/arch/ia64/include/asm/vga.h b/arch/ia64/include/asm/vga.h
index 02184ecd8208..30cb373f3de8 100644
--- a/arch/ia64/include/asm/vga.h
+++ b/arch/ia64/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/arch/ia64/include/uapi/asm/auxvec.h b/arch/ia64/include/uapi/asm/auxvec.h
index 58277fc650ef..09969a5d2e0a 100644
--- a/arch/ia64/include/uapi/asm/auxvec.h
+++ b/arch/ia64/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_AUXVEC_H
 #define _ASM_IA64_AUXVEC_H
 
diff --git a/arch/ia64/include/uapi/asm/bitsperlong.h b/arch/ia64/include/uapi/asm/bitsperlong.h
index ec4db3c970b7..1146d55563db 100644
--- a/arch/ia64/include/uapi/asm/bitsperlong.h
+++ b/arch/ia64/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_IA64_BITSPERLONG_H
 #define __ASM_IA64_BITSPERLONG_H
 
diff --git a/arch/ia64/include/uapi/asm/break.h b/arch/ia64/include/uapi/asm/break.h
index f03402039896..5d742bcb0018 100644
--- a/arch/ia64/include/uapi/asm/break.h
+++ b/arch/ia64/include/uapi/asm/break.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_BREAK_H
 #define _ASM_IA64_BREAK_H
 
diff --git a/arch/ia64/include/uapi/asm/byteorder.h b/arch/ia64/include/uapi/asm/byteorder.h
index a8dd73558150..f85d0faaaf34 100644
--- a/arch/ia64/include/uapi/asm/byteorder.h
+++ b/arch/ia64/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_BYTEORDER_H
 #define _ASM_IA64_BYTEORDER_H
 
diff --git a/arch/ia64/include/uapi/asm/cmpxchg.h b/arch/ia64/include/uapi/asm/cmpxchg.h
index a0e3620f8f13..d69c979936d4 100644
--- a/arch/ia64/include/uapi/asm/cmpxchg.h
+++ b/arch/ia64/include/uapi/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_CMPXCHG_H
 #define _ASM_IA64_CMPXCHG_H
 
diff --git a/arch/ia64/include/uapi/asm/errno.h b/arch/ia64/include/uapi/asm/errno.h
index 4c82b503d92f..9addba592646 100644
--- a/arch/ia64/include/uapi/asm/errno.h
+++ b/arch/ia64/include/uapi/asm/errno.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/errno.h>
diff --git a/arch/ia64/include/uapi/asm/fcntl.h b/arch/ia64/include/uapi/asm/fcntl.h
index 7b485876cad4..7b95523efe5a 100644
--- a/arch/ia64/include/uapi/asm/fcntl.h
+++ b/arch/ia64/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_FCNTL_H
 #define _ASM_IA64_FCNTL_H
 /*
diff --git a/arch/ia64/include/uapi/asm/fpu.h b/arch/ia64/include/uapi/asm/fpu.h
index b6395ad1500a..0df392982ce8 100644
--- a/arch/ia64/include/uapi/asm/fpu.h
+++ b/arch/ia64/include/uapi/asm/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_FPU_H
 #define _ASM_IA64_FPU_H
 
diff --git a/arch/ia64/include/uapi/asm/gcc_intrin.h b/arch/ia64/include/uapi/asm/gcc_intrin.h
index 61d0d0111978..c60696fd1e37 100644
--- a/arch/ia64/include/uapi/asm/gcc_intrin.h
+++ b/arch/ia64/include/uapi/asm/gcc_intrin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *
  * Copyright (C) 2002,2003 Jun Nakajima <jun.nakajima@intel.com>
diff --git a/arch/ia64/include/uapi/asm/ia64regs.h b/arch/ia64/include/uapi/asm/ia64regs.h
index 1757f1c11ad4..d7d10cec8b9f 100644
--- a/arch/ia64/include/uapi/asm/ia64regs.h
+++ b/arch/ia64/include/uapi/asm/ia64regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2002,2003 Intel Corp.
  *      Jun Nakajima <jun.nakajima@intel.com>
diff --git a/arch/ia64/include/uapi/asm/intel_intrin.h b/arch/ia64/include/uapi/asm/intel_intrin.h
index 53cec577558a..ab649691545a 100644
--- a/arch/ia64/include/uapi/asm/intel_intrin.h
+++ b/arch/ia64/include/uapi/asm/intel_intrin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_INTEL_INTRIN_H
 #define _ASM_IA64_INTEL_INTRIN_H
 /*
diff --git a/arch/ia64/include/uapi/asm/intrinsics.h b/arch/ia64/include/uapi/asm/intrinsics.h
index 5829978ff466..aecc217eca63 100644
--- a/arch/ia64/include/uapi/asm/intrinsics.h
+++ b/arch/ia64/include/uapi/asm/intrinsics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Compiler-dependent intrinsics.
  *
diff --git a/arch/ia64/include/uapi/asm/ioctl.h b/arch/ia64/include/uapi/asm/ioctl.h
index b279fe06dfe5..b809c4566e5f 100644
--- a/arch/ia64/include/uapi/asm/ioctl.h
+++ b/arch/ia64/include/uapi/asm/ioctl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ioctl.h>
diff --git a/arch/ia64/include/uapi/asm/ioctls.h b/arch/ia64/include/uapi/asm/ioctls.h
index f3aab5512e98..b86001940209 100644
--- a/arch/ia64/include/uapi/asm/ioctls.h
+++ b/arch/ia64/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_IOCTLS_H
 #define _ASM_IA64_IOCTLS_H
 
diff --git a/arch/ia64/include/uapi/asm/ipcbuf.h b/arch/ia64/include/uapi/asm/ipcbuf.h
index 84c7e51cb6d0..90d6445a14df 100644
--- a/arch/ia64/include/uapi/asm/ipcbuf.h
+++ b/arch/ia64/include/uapi/asm/ipcbuf.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ipcbuf.h>
diff --git a/arch/ia64/include/uapi/asm/mman.h b/arch/ia64/include/uapi/asm/mman.h
index 8740819adc54..ce0cc3d7509e 100644
--- a/arch/ia64/include/uapi/asm/mman.h
+++ b/arch/ia64/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Based on <asm-i386/mman.h>.
  *
diff --git a/arch/ia64/include/uapi/asm/msgbuf.h b/arch/ia64/include/uapi/asm/msgbuf.h
index 6c64c0d2aae1..aa25df92d9dc 100644
--- a/arch/ia64/include/uapi/asm/msgbuf.h
+++ b/arch/ia64/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_MSGBUF_H
 #define _ASM_IA64_MSGBUF_H
 
diff --git a/arch/ia64/include/uapi/asm/param.h b/arch/ia64/include/uapi/asm/param.h
index d7da41d9497d..123ab45940b4 100644
--- a/arch/ia64/include/uapi/asm/param.h
+++ b/arch/ia64/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Fundamental kernel parameters.
  *
diff --git a/arch/ia64/include/uapi/asm/perfmon.h b/arch/ia64/include/uapi/asm/perfmon.h
index 1a10a2dd58a1..017548365e5c 100644
--- a/arch/ia64/include/uapi/asm/perfmon.h
+++ b/arch/ia64/include/uapi/asm/perfmon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2001-2003 Hewlett-Packard Co
  *               Stephane Eranian <eranian@hpl.hp.com>
diff --git a/arch/ia64/include/uapi/asm/perfmon_default_smpl.h b/arch/ia64/include/uapi/asm/perfmon_default_smpl.h
index a2d560c67230..d3f36aff0e1f 100644
--- a/arch/ia64/include/uapi/asm/perfmon_default_smpl.h
+++ b/arch/ia64/include/uapi/asm/perfmon_default_smpl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2002-2003 Hewlett-Packard Co
  *               Stephane Eranian <eranian@hpl.hp.com>
diff --git a/arch/ia64/include/uapi/asm/poll.h b/arch/ia64/include/uapi/asm/poll.h
index c98509d3149e..b7132a305a47 100644
--- a/arch/ia64/include/uapi/asm/poll.h
+++ b/arch/ia64/include/uapi/asm/poll.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/poll.h>
diff --git a/arch/ia64/include/uapi/asm/posix_types.h b/arch/ia64/include/uapi/asm/posix_types.h
index 99ee1d6510cf..bded40f7defe 100644
--- a/arch/ia64/include/uapi/asm/posix_types.h
+++ b/arch/ia64/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_POSIX_TYPES_H
 #define _ASM_IA64_POSIX_TYPES_H
 
diff --git a/arch/ia64/include/uapi/asm/ptrace.h b/arch/ia64/include/uapi/asm/ptrace.h
index 0a02f634e12b..f52655b44414 100644
--- a/arch/ia64/include/uapi/asm/ptrace.h
+++ b/arch/ia64/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 1998-2004 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/include/uapi/asm/ptrace_offsets.h b/arch/ia64/include/uapi/asm/ptrace_offsets.h
index b712773c759e..2847c18139ef 100644
--- a/arch/ia64/include/uapi/asm/ptrace_offsets.h
+++ b/arch/ia64/include/uapi/asm/ptrace_offsets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_PTRACE_OFFSETS_H
 #define _ASM_IA64_PTRACE_OFFSETS_H
 
diff --git a/arch/ia64/include/uapi/asm/resource.h b/arch/ia64/include/uapi/asm/resource.h
index ba2272a87fc7..d488d2b22ac4 100644
--- a/arch/ia64/include/uapi/asm/resource.h
+++ b/arch/ia64/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_RESOURCE_H
 #define _ASM_IA64_RESOURCE_H
 
diff --git a/arch/ia64/include/uapi/asm/rse.h b/arch/ia64/include/uapi/asm/rse.h
index 02830a3b0196..6d260af571c5 100644
--- a/arch/ia64/include/uapi/asm/rse.h
+++ b/arch/ia64/include/uapi/asm/rse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_RSE_H
 #define _ASM_IA64_RSE_H
 
diff --git a/arch/ia64/include/uapi/asm/sembuf.h b/arch/ia64/include/uapi/asm/sembuf.h
index 1340fbc04d3e..6ed058760afc 100644
--- a/arch/ia64/include/uapi/asm/sembuf.h
+++ b/arch/ia64/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_SEMBUF_H
 #define _ASM_IA64_SEMBUF_H
 
diff --git a/arch/ia64/include/uapi/asm/setup.h b/arch/ia64/include/uapi/asm/setup.h
index 8d56458310b3..8d13ce8fb03a 100644
--- a/arch/ia64/include/uapi/asm/setup.h
+++ b/arch/ia64/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __IA64_SETUP_H
 #define __IA64_SETUP_H
 
diff --git a/arch/ia64/include/uapi/asm/shmbuf.h b/arch/ia64/include/uapi/asm/shmbuf.h
index 585002a77acd..6ef57cb70dee 100644
--- a/arch/ia64/include/uapi/asm/shmbuf.h
+++ b/arch/ia64/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_SHMBUF_H
 #define _ASM_IA64_SHMBUF_H
 
diff --git a/arch/ia64/include/uapi/asm/sigcontext.h b/arch/ia64/include/uapi/asm/sigcontext.h
index 57ff777bcc40..1bb6f0f2bd73 100644
--- a/arch/ia64/include/uapi/asm/sigcontext.h
+++ b/arch/ia64/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_SIGCONTEXT_H
 #define _ASM_IA64_SIGCONTEXT_H
 
diff --git a/arch/ia64/include/uapi/asm/siginfo.h b/arch/ia64/include/uapi/asm/siginfo.h
index 33389fc36f23..f3a02a10c3a3 100644
--- a/arch/ia64/include/uapi/asm/siginfo.h
+++ b/arch/ia64/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Based on <asm-i386/siginfo.h>.
  *
diff --git a/arch/ia64/include/uapi/asm/signal.h b/arch/ia64/include/uapi/asm/signal.h
index c0ea2855e96b..aa98ff1b9e22 100644
--- a/arch/ia64/include/uapi/asm/signal.h
+++ b/arch/ia64/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Modified 1998-2001, 2003
  *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h
index 002eb85a6941..3efba40adc54 100644
--- a/arch/ia64/include/uapi/asm/socket.h
+++ b/arch/ia64/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_SOCKET_H
 #define _ASM_IA64_SOCKET_H
 
diff --git a/arch/ia64/include/uapi/asm/sockios.h b/arch/ia64/include/uapi/asm/sockios.h
index 15c92468ad38..f27a12f95d20 100644
--- a/arch/ia64/include/uapi/asm/sockios.h
+++ b/arch/ia64/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_SOCKIOS_H
 #define _ASM_IA64_SOCKIOS_H
 
diff --git a/arch/ia64/include/uapi/asm/stat.h b/arch/ia64/include/uapi/asm/stat.h
index 367bb90cdffa..3265ed5aac0f 100644
--- a/arch/ia64/include/uapi/asm/stat.h
+++ b/arch/ia64/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_STAT_H
 #define _ASM_IA64_STAT_H
 
diff --git a/arch/ia64/include/uapi/asm/statfs.h b/arch/ia64/include/uapi/asm/statfs.h
index 1e589669de56..de3bae4f137d 100644
--- a/arch/ia64/include/uapi/asm/statfs.h
+++ b/arch/ia64/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_STATFS_H
 #define _ASM_IA64_STATFS_H
 
diff --git a/arch/ia64/include/uapi/asm/swab.h b/arch/ia64/include/uapi/asm/swab.h
index c89a8cb5d8a5..79f3fef1a05e 100644
--- a/arch/ia64/include/uapi/asm/swab.h
+++ b/arch/ia64/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_SWAB_H
 #define _ASM_IA64_SWAB_H
 
diff --git a/arch/ia64/include/uapi/asm/termbits.h b/arch/ia64/include/uapi/asm/termbits.h
index c009b94e58d9..000a1a297c75 100644
--- a/arch/ia64/include/uapi/asm/termbits.h
+++ b/arch/ia64/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_TERMBITS_H
 #define _ASM_IA64_TERMBITS_H
 
diff --git a/arch/ia64/include/uapi/asm/termios.h b/arch/ia64/include/uapi/asm/termios.h
index d59b48c307f8..199742d08f2c 100644
--- a/arch/ia64/include/uapi/asm/termios.h
+++ b/arch/ia64/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Modified 1999
  *	David Mosberger-Tang <davidm@hpl.hp.com>, Hewlett-Packard Co
diff --git a/arch/ia64/include/uapi/asm/types.h b/arch/ia64/include/uapi/asm/types.h
index 321193b05eed..2000de474be6 100644
--- a/arch/ia64/include/uapi/asm/types.h
+++ b/arch/ia64/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is never included by application software unless explicitly
  * requested (e.g., via linux/types.h) in which case the application is
diff --git a/arch/ia64/include/uapi/asm/ucontext.h b/arch/ia64/include/uapi/asm/ucontext.h
index bf573dc8ca6a..46f51e535e04 100644
--- a/arch/ia64/include/uapi/asm/ucontext.h
+++ b/arch/ia64/include/uapi/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IA64_UCONTEXT_H
 #define _ASM_IA64_UCONTEXT_H
 
diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h
index ea5363daa7bd..5fe71d4a43de 100644
--- a/arch/ia64/include/uapi/asm/unistd.h
+++ b/arch/ia64/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * IA-64 Linux syscall numbers and inline-functions.
  *
diff --git a/arch/ia64/include/uapi/asm/ustack.h b/arch/ia64/include/uapi/asm/ustack.h
index 1dfebc622692..703cc5f546ff 100644
--- a/arch/ia64/include/uapi/asm/ustack.h
+++ b/arch/ia64/include/uapi/asm/ustack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_IA64_USTACK_H
 #define _UAPI_ASM_IA64_USTACK_H
 
diff --git a/arch/ia64/kernel/Makefile b/arch/ia64/kernel/Makefile
index 9edda5466020..14ad79f394e5 100644
--- a/arch/ia64/kernel/Makefile
+++ b/arch/ia64/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/ia64/kernel/Makefile.gate b/arch/ia64/kernel/Makefile.gate
index 7da7c65a9bb1..f53faf48b7ce 100644
--- a/arch/ia64/kernel/Makefile.gate
+++ b/arch/ia64/kernel/Makefile.gate
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # The gate DSO image is built using a special linker script.
 
 targets += gate.so gate.lds gate.o gate-dummy.o
diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c
index 798bdb209d00..f7693f49c573 100644
--- a/arch/ia64/kernel/asm-offsets.c
+++ b/arch/ia64/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed
@@ -211,6 +212,8 @@ void foo(void)
 	BLANK();
 	DEFINE(IA64_TIMESPEC_TV_NSEC_OFFSET,
 	       offsetof (struct timespec, tv_nsec));
+	DEFINE(IA64_TIME_SN_SPEC_SNSEC_OFFSET,
+	       offsetof (struct time_sn_spec, snsec));
 
 	DEFINE(CLONE_SETTLS_BIT, 19);
 #if CLONE_SETTLS != (1<<19)
diff --git a/arch/ia64/kernel/audit.c b/arch/ia64/kernel/audit.c
index 96a9d18ff4c4..5192ca899fe6 100644
--- a/arch/ia64/kernel/audit.c
+++ b/arch/ia64/kernel/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/arch/ia64/kernel/brl_emu.c b/arch/ia64/kernel/brl_emu.c
index 987b11be0021..9bcc908bc85e 100644
--- a/arch/ia64/kernel/brl_emu.c
+++ b/arch/ia64/kernel/brl_emu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Emulation of the "brl" instruction for IA64 processors that
  *  don't support it in hardware.
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 75859a07d75b..39f4433a6f0e 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/ia64/kernel/crash.c
  *
diff --git a/arch/ia64/kernel/crash_dump.c b/arch/ia64/kernel/crash_dump.c
index 9c12b794e774..0ed3c3dee4cd 100644
--- a/arch/ia64/kernel/crash_dump.c
+++ b/arch/ia64/kernel/crash_dump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	kernel/crash_dump.c - Memory preserving reboot related code.
  *
diff --git a/arch/ia64/kernel/cyclone.c b/arch/ia64/kernel/cyclone.c
index ee1a4afbf9da..f80eb7fb544d 100644
--- a/arch/ia64/kernel/cyclone.c
+++ b/arch/ia64/kernel/cyclone.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/smp.h>
 #include <linux/time.h>
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index e0dd97f4eb69..7a82c9259609 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/dma-mapping.h>
 #include <linux/export.h>
 
diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 81416000c5e0..9c09bf390cce 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Extensible Firmware Interface
  *
diff --git a/arch/ia64/kernel/efi_stub.S b/arch/ia64/kernel/efi_stub.S
index a56e161d7515..58233bb7976d 100644
--- a/arch/ia64/kernel/efi_stub.S
+++ b/arch/ia64/kernel/efi_stub.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * EFI call stub.
  *
diff --git a/arch/ia64/kernel/elfcore.c b/arch/ia64/kernel/elfcore.c
index 04bc8fd5f893..94680521fbf9 100644
--- a/arch/ia64/kernel/elfcore.c
+++ b/arch/ia64/kernel/elfcore.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/elf.h>
 #include <linux/coredump.h>
 #include <linux/fs.h>
diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index e7a716b09350..68362b30ea47 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/ia64/kernel/entry.S
  *
diff --git a/arch/ia64/kernel/entry.h b/arch/ia64/kernel/entry.h
index b83edac02965..6463dc316263 100644
--- a/arch/ia64/kernel/entry.h
+++ b/arch/ia64/kernel/entry.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * Preserved registers that are shared between code in ivt.S and
diff --git a/arch/ia64/kernel/fsys.S b/arch/ia64/kernel/fsys.S
index edbf7af95849..fe742ffafc7a 100644
--- a/arch/ia64/kernel/fsys.S
+++ b/arch/ia64/kernel/fsys.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the light-weight system call handlers (fsyscall-handlers).
  *
@@ -235,9 +236,9 @@ ENTRY(fsys_gettimeofday)
 	MOV_FROM_ITC(p8, p6, r2, r10)	// CPU_TIMER. 36 clocks latency!!!
 (p9)	ld8 r2 = [r30]		// MMIO_TIMER. Could also have latency issues..
 (p13)	ld8 r25 = [r19]		// get itc_lastcycle value
-	ld8 r9 = [r22],IA64_TIMESPEC_TV_NSEC_OFFSET	// tv_sec
+	ld8 r9 = [r22],IA64_TIME_SN_SPEC_SNSEC_OFFSET	// sec
 	;;
-	ld8 r8 = [r22],-IA64_TIMESPEC_TV_NSEC_OFFSET	// tv_nsec
+	ld8 r8 = [r22],-IA64_TIME_SN_SPEC_SNSEC_OFFSET	// snsec
 (p13)	sub r3 = r25,r2		// Diff needed before comparison (thanks davidm)
 	;;
 (p13)	cmp.gt.unc p6,p7 = r3,r0 // check if it is less than last. p6,p7 cleared
@@ -265,9 +266,9 @@ EX(.fail_efault, probe.w.fault r31, 3)
 	mf
 	;;
 	ld4 r10 = [r20]		// gtod_lock.sequence
-	shr.u r2 = r2,r23	// shift by factor
-	;;
 	add r8 = r8,r2		// Add xtime.nsecs
+	;;
+	shr.u r8 = r8,r23	// shift by factor
 	cmp4.ne p7,p0 = r28,r10
 (p7)	br.cond.dpnt.few .time_redo	// sequence number changed, redo
 	// End critical section.
diff --git a/arch/ia64/kernel/fsyscall_gtod_data.h b/arch/ia64/kernel/fsyscall_gtod_data.h
index dcc514917731..cc2861445965 100644
--- a/arch/ia64/kernel/fsyscall_gtod_data.h
+++ b/arch/ia64/kernel/fsyscall_gtod_data.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (c) Copyright 2007 Hewlett-Packard Development Company, L.P.
  *        Contributed by Peter Keilty <peter.keilty@hp.com>
@@ -5,10 +6,16 @@
  * fsyscall gettimeofday data
  */
 
+/* like timespec, but includes "shifted nanoseconds" */
+struct time_sn_spec {
+	u64	sec;
+	u64	snsec;
+};
+
 struct fsyscall_gtod_data_t {
 	seqcount_t	seq;
-	struct timespec	wall_time;
-	struct timespec monotonic_time;
+	struct time_sn_spec wall_time;
+	struct time_sn_spec monotonic_time;
 	u64		clk_mask;
 	u32		clk_mult;
 	u32		clk_shift;
diff --git a/arch/ia64/kernel/gate.S b/arch/ia64/kernel/gate.S
index 0bd1b3bfaf1c..9f235cd551ab 100644
--- a/arch/ia64/kernel/gate.S
+++ b/arch/ia64/kernel/gate.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the code that gets mapped at the upper end of each task's text
  * region.  For now, it contains the signal trampoline code only.
diff --git a/arch/ia64/kernel/gate.lds.S b/arch/ia64/kernel/gate.lds.S
index 3e8271e85a1e..461c7e69d465 100644
--- a/arch/ia64/kernel/gate.lds.S
+++ b/arch/ia64/kernel/gate.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for gate DSO.  The gate pages are an ELF shared object
  * prelinked to its virtual address, with only one read-only segment and
diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S
index 3204fddc439c..e6f45170a4b9 100644
--- a/arch/ia64/kernel/head.S
+++ b/arch/ia64/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Here is where the ball gets rolling as far as the kernel is concerned.
  * When control is transferred to _start, the bootload has already
diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
index d111248af719..6b51c88e3578 100644
--- a/arch/ia64/kernel/ia64_ksyms.c
+++ b/arch/ia64/kernel/ia64_ksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture-specific kernel symbols
  */
diff --git a/arch/ia64/kernel/init_task.c b/arch/ia64/kernel/init_task.c
index fa8ee64adac2..8df9245e29d9 100644
--- a/arch/ia64/kernel/init_task.c
+++ b/arch/ia64/kernel/init_task.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is where we statically allocate and initialize the initial
  * task.
diff --git a/arch/ia64/kernel/iosapic.c b/arch/ia64/kernel/iosapic.c
index 90fde5b8669d..550243a94b5d 100644
--- a/arch/ia64/kernel/iosapic.c
+++ b/arch/ia64/kernel/iosapic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * I/O SAPIC support.
  *
diff --git a/arch/ia64/kernel/irq.c b/arch/ia64/kernel/irq.c
index 2ff1df7b14ea..8ed81b252694 100644
--- a/arch/ia64/kernel/irq.c
+++ b/arch/ia64/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/arch/ia64/kernel/irq.c
  *
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index eaa3199f98c8..ab87d6c25b15 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/ia64/kernel/irq_ia64.c
  *
diff --git a/arch/ia64/kernel/irq_lsapic.c b/arch/ia64/kernel/irq_lsapic.c
index 1b3a776e5161..23bf4499a75d 100644
--- a/arch/ia64/kernel/irq_lsapic.c
+++ b/arch/ia64/kernel/irq_lsapic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * LSAPIC Interrupt Controller
  *
diff --git a/arch/ia64/kernel/ivt.S b/arch/ia64/kernel/ivt.S
index 44a103a5de2b..1efcbe5f0c78 100644
--- a/arch/ia64/kernel/ivt.S
+++ b/arch/ia64/kernel/ivt.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/ia64/kernel/ivt.S
  *
diff --git a/arch/ia64/kernel/machvec.c b/arch/ia64/kernel/machvec.c
index f5a1e5246b3e..7bfe98859911 100644
--- a/arch/ia64/kernel/machvec.c
+++ b/arch/ia64/kernel/machvec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/dma-mapping.h>
 #include <asm/machvec.h>
diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 555b11180156..6115464d5f03 100644
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1513,7 +1513,7 @@ ia64_mca_cmc_int_caller(int cmc_irq, void *arg)
  *
  */
 static void
-ia64_mca_cmc_poll (unsigned long dummy)
+ia64_mca_cmc_poll (struct timer_list *unused)
 {
 	/* Trigger a CMC interrupt cascade  */
 	platform_send_ipi(cpumask_first(cpu_online_mask), IA64_CMCP_VECTOR,
@@ -1590,7 +1590,7 @@ ia64_mca_cpe_int_caller(int cpe_irq, void *arg)
  *
  */
 static void
-ia64_mca_cpe_poll (unsigned long dummy)
+ia64_mca_cpe_poll (struct timer_list *unused)
 {
 	/* Trigger a CPE interrupt cascade  */
 	platform_send_ipi(cpumask_first(cpu_online_mask), IA64_CPEP_VECTOR,
@@ -2098,7 +2098,7 @@ ia64_mca_late_init(void)
 		return 0;
 
 	/* Setup the CMCI/P vector and handler */
-	setup_timer(&cmc_poll_timer, ia64_mca_cmc_poll, 0UL);
+	timer_setup(&cmc_poll_timer, ia64_mca_cmc_poll, 0);
 
 	/* Unmask/enable the vector */
 	cmc_polling_enabled = 0;
@@ -2109,7 +2109,7 @@ ia64_mca_late_init(void)
 #ifdef CONFIG_ACPI
 	/* Setup the CPEI/P vector and handler */
 	cpe_vector = acpi_request_vector(ACPI_INTERRUPT_CPEI);
-	setup_timer(&cpe_poll_timer, ia64_mca_cpe_poll, 0UL);
+	timer_setup(&cpe_poll_timer, ia64_mca_cpe_poll, 0);
 
 	{
 		unsigned int irq;
diff --git a/arch/ia64/kernel/mca_asm.S b/arch/ia64/kernel/mca_asm.S
index d5bdf9de36b6..086cfa4999fd 100644
--- a/arch/ia64/kernel/mca_asm.S
+++ b/arch/ia64/kernel/mca_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	mca_asm.S
  * Purpose:	assembly portion of the IA64 MCA handling
diff --git a/arch/ia64/kernel/mca_drv.h b/arch/ia64/kernel/mca_drv.h
index 53b8ecb5b4b9..45bc4e3ae14f 100644
--- a/arch/ia64/kernel/mca_drv.h
+++ b/arch/ia64/kernel/mca_drv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	mca_drv.h
  * Purpose:	Define helpers for Generic MCA handling
diff --git a/arch/ia64/kernel/mca_drv_asm.S b/arch/ia64/kernel/mca_drv_asm.S
index 767ac2c20d16..4428f57bee73 100644
--- a/arch/ia64/kernel/mca_drv_asm.S
+++ b/arch/ia64/kernel/mca_drv_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:        mca_drv_asm.S
  * Purpose:     Assembly portion of Generic MCA handling
diff --git a/arch/ia64/kernel/minstate.h b/arch/ia64/kernel/minstate.h
index 5704700fb703..d6eab2a1084d 100644
--- a/arch/ia64/kernel/minstate.h
+++ b/arch/ia64/kernel/minstate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <asm/cache.h>
 
diff --git a/arch/ia64/kernel/module.c b/arch/ia64/kernel/module.c
index d1d945c6bd05..853b5611a894 100644
--- a/arch/ia64/kernel/module.c
+++ b/arch/ia64/kernel/module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IA-64-specific support for kernel module loader.
  *
diff --git a/arch/ia64/kernel/msi_ia64.c b/arch/ia64/kernel/msi_ia64.c
index af4eaec0f7c3..519d9432f407 100644
--- a/arch/ia64/kernel/msi_ia64.c
+++ b/arch/ia64/kernel/msi_ia64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MSI hooks for standard x86 apic
  */
diff --git a/arch/ia64/kernel/nr-irqs.c b/arch/ia64/kernel/nr-irqs.c
index f6769cd54bd9..f2633b22d3be 100644
--- a/arch/ia64/kernel/nr-irqs.c
+++ b/arch/ia64/kernel/nr-irqs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * calculate
  * NR_IRQS = max(IA64_NATIVE_NR_IRQS, XEN_NR_IRQS, FOO_NR_IRQS...)
diff --git a/arch/ia64/kernel/pal.S b/arch/ia64/kernel/pal.S
index 94fb2e395498..d3e22c018b68 100644
--- a/arch/ia64/kernel/pal.S
+++ b/arch/ia64/kernel/pal.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PAL Firmware support
  * IA-64 Processor Programmers Reference Vol 2
diff --git a/arch/ia64/kernel/patch.c b/arch/ia64/kernel/patch.c
index 944a8e2438a6..7f21a8c57ed7 100644
--- a/arch/ia64/kernel/patch.c
+++ b/arch/ia64/kernel/patch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Instruction-patching support.
  *
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index 9094a73f996f..3ba87c22dfbc 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dynamic DMA mapping support.
  */
diff --git a/arch/ia64/kernel/pci-swiotlb.c b/arch/ia64/kernel/pci-swiotlb.c
index a14989dacded..5e50939aa03e 100644
--- a/arch/ia64/kernel/pci-swiotlb.c
+++ b/arch/ia64/kernel/pci-swiotlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Glue code to lib/swiotlb.c */
 
 #include <linux/pci.h>
diff --git a/arch/ia64/kernel/perfmon_generic.h b/arch/ia64/kernel/perfmon_generic.h
index 67489478041e..96af4696cea9 100644
--- a/arch/ia64/kernel/perfmon_generic.h
+++ b/arch/ia64/kernel/perfmon_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the generic PMU register description tables
  * and pmc checker used by perfmon.c.
diff --git a/arch/ia64/kernel/perfmon_itanium.h b/arch/ia64/kernel/perfmon_itanium.h
index d1d508a0fbd3..f2d348648a03 100644
--- a/arch/ia64/kernel/perfmon_itanium.h
+++ b/arch/ia64/kernel/perfmon_itanium.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the Itanium PMU register description tables
  * and pmc checker used by perfmon.c.
diff --git a/arch/ia64/kernel/perfmon_mckinley.h b/arch/ia64/kernel/perfmon_mckinley.h
index c4bec7a9d18f..a993249e58bc 100644
--- a/arch/ia64/kernel/perfmon_mckinley.h
+++ b/arch/ia64/kernel/perfmon_mckinley.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the McKinley PMU register description tables
  * and pmc checker used by perfmon.c.
diff --git a/arch/ia64/kernel/perfmon_montecito.h b/arch/ia64/kernel/perfmon_montecito.h
index 7f8da4c7ca67..c0b5b9110c88 100644
--- a/arch/ia64/kernel/perfmon_montecito.h
+++ b/arch/ia64/kernel/perfmon_montecito.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the Montecito PMU register description tables
  * and pmc checker used by perfmon.c.
diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c
index d344d0d691aa..dda0082056b3 100644
--- a/arch/ia64/kernel/process.c
+++ b/arch/ia64/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture-specific setup.
  *
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c
index 3f8293378a83..427cd565fd61 100644
--- a/arch/ia64/kernel/ptrace.c
+++ b/arch/ia64/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Kernel support for the ptrace() and syscall tracing interfaces.
  *
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index 63dc9cdc95c5..52c404b08904 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -263,7 +263,7 @@ salinfo_timeout_check(struct salinfo_data *data)
 }
 
 static void
-salinfo_timeout (unsigned long arg)
+salinfo_timeout(struct timer_list *unused)
 {
 	ia64_mlogbuf_dump();
 	salinfo_timeout_check(salinfo_data + SAL_INFO_TYPE_MCA);
@@ -623,9 +623,8 @@ salinfo_init(void)
 
 	*sdir++ = salinfo_dir;
 
-	init_timer(&salinfo_timer);
+	timer_setup(&salinfo_timer, salinfo_timeout, 0);
 	salinfo_timer.expires = jiffies + SALINFO_TIMER_DELAY;
-	salinfo_timer.function = &salinfo_timeout;
 	add_timer(&salinfo_timer);
 
 	i = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "ia64/salinfo:online",
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 23e3fd61e335..dee56bcb993d 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture-specific setup.
  *
diff --git a/arch/ia64/kernel/sigframe.h b/arch/ia64/kernel/sigframe.h
index 9fd9a1933b3d..58a36ce6c26e 100644
--- a/arch/ia64/kernel/sigframe.h
+++ b/arch/ia64/kernel/sigframe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 struct sigscratch {
 	unsigned long scratch_unat;	/* ar.unat for the general registers saved in pt */
 	unsigned long ar_pfs;		/* for syscalls, the user-level function-state  */
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 6146d53b6ad7..a254cc98f95c 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture-specific signal handling support.
  *
diff --git a/arch/ia64/kernel/stacktrace.c b/arch/ia64/kernel/stacktrace.c
index 5af2783a87f4..6e583a6bd2f6 100644
--- a/arch/ia64/kernel/stacktrace.c
+++ b/arch/ia64/kernel/stacktrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/ia64/kernel/stacktrace.c
  *
diff --git a/arch/ia64/kernel/sys_ia64.c b/arch/ia64/kernel/sys_ia64.c
index 5ce927c854a6..085adfcc74a4 100644
--- a/arch/ia64/kernel/sys_ia64.c
+++ b/arch/ia64/kernel/sys_ia64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains various system calls that have different calling
  * conventions on different platforms.
diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c
index aa7be020a904..c6ecb97151a2 100644
--- a/arch/ia64/kernel/time.c
+++ b/arch/ia64/kernel/time.c
@@ -430,30 +430,32 @@ void update_vsyscall_tz(void)
 {
 }
 
-void update_vsyscall_old(struct timespec *wall, struct timespec *wtm,
-			 struct clocksource *c, u32 mult, u64 cycle_last)
+void update_vsyscall(struct timekeeper *tk)
 {
 	write_seqcount_begin(&fsyscall_gtod_data.seq);
 
-        /* copy fsyscall clock data */
-        fsyscall_gtod_data.clk_mask = c->mask;
-        fsyscall_gtod_data.clk_mult = mult;
-        fsyscall_gtod_data.clk_shift = c->shift;
-        fsyscall_gtod_data.clk_fsys_mmio = c->archdata.fsys_mmio;
-        fsyscall_gtod_data.clk_cycle_last = cycle_last;
-
-	/* copy kernel time structures */
-        fsyscall_gtod_data.wall_time.tv_sec = wall->tv_sec;
-        fsyscall_gtod_data.wall_time.tv_nsec = wall->tv_nsec;
-	fsyscall_gtod_data.monotonic_time.tv_sec = wtm->tv_sec
-							+ wall->tv_sec;
-	fsyscall_gtod_data.monotonic_time.tv_nsec = wtm->tv_nsec
-							+ wall->tv_nsec;
+	/* copy vsyscall data */
+	fsyscall_gtod_data.clk_mask = tk->tkr_mono.mask;
+	fsyscall_gtod_data.clk_mult = tk->tkr_mono.mult;
+	fsyscall_gtod_data.clk_shift = tk->tkr_mono.shift;
+	fsyscall_gtod_data.clk_fsys_mmio = tk->tkr_mono.clock->archdata.fsys_mmio;
+	fsyscall_gtod_data.clk_cycle_last = tk->tkr_mono.cycle_last;
+
+	fsyscall_gtod_data.wall_time.sec = tk->xtime_sec;
+	fsyscall_gtod_data.wall_time.snsec = tk->tkr_mono.xtime_nsec;
+
+	fsyscall_gtod_data.monotonic_time.sec = tk->xtime_sec
+					      + tk->wall_to_monotonic.tv_sec;
+	fsyscall_gtod_data.monotonic_time.snsec = tk->tkr_mono.xtime_nsec
+						+ ((u64)tk->wall_to_monotonic.tv_nsec
+							<< tk->tkr_mono.shift);
 
 	/* normalize */
-	while (fsyscall_gtod_data.monotonic_time.tv_nsec >= NSEC_PER_SEC) {
-		fsyscall_gtod_data.monotonic_time.tv_nsec -= NSEC_PER_SEC;
-		fsyscall_gtod_data.monotonic_time.tv_sec++;
+	while (fsyscall_gtod_data.monotonic_time.snsec >=
+					(((u64)NSEC_PER_SEC) << tk->tkr_mono.shift)) {
+		fsyscall_gtod_data.monotonic_time.snsec -=
+					((u64)NSEC_PER_SEC) << tk->tkr_mono.shift;
+		fsyscall_gtod_data.monotonic_time.sec++;
 	}
 
 	write_seqcount_end(&fsyscall_gtod_data.seq);
diff --git a/arch/ia64/kernel/traps.c b/arch/ia64/kernel/traps.c
index 3cb17cf9b362..6d4e76a4267f 100644
--- a/arch/ia64/kernel/traps.c
+++ b/arch/ia64/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture-specific trap handling.
  *
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index a13680ca1e61..72e9b4242564 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture-specific unaligned trap handling.
  *
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index 9704e2cd9878..e04efa088902 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 1999-2004 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/kernel/unwind_decoder.c b/arch/ia64/kernel/unwind_decoder.c
index 50ac2d82f9bf..83f54f7929b5 100644
--- a/arch/ia64/kernel/unwind_decoder.c
+++ b/arch/ia64/kernel/unwind_decoder.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2000 Hewlett-Packard Co
  * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/kernel/unwind_i.h b/arch/ia64/kernel/unwind_i.h
index 96693a6ae370..67994a7e5816 100644
--- a/arch/ia64/kernel/unwind_i.h
+++ b/arch/ia64/kernel/unwind_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2000, 2002-2003 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S
index 798026dde52e..58db59da0bd8 100644
--- a/arch/ia64/kernel/vmlinux.lds.S
+++ b/arch/ia64/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <asm/cache.h>
 #include <asm/ptrace.h>
diff --git a/arch/ia64/lib/Makefile b/arch/ia64/lib/Makefile
index 1a36a3a39624..82118b38532f 100644
--- a/arch/ia64/lib/Makefile
+++ b/arch/ia64/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ia64-specific library routines..
 #
diff --git a/arch/ia64/lib/carta_random.S b/arch/ia64/lib/carta_random.S
index d0674c360364..1a4a639dc42f 100644
--- a/arch/ia64/lib/carta_random.S
+++ b/arch/ia64/lib/carta_random.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Fast, simple, yet decent quality random number generator based on
  * a paper by David G. Carta ("Two Fast Implementations of the
diff --git a/arch/ia64/lib/checksum.c b/arch/ia64/lib/checksum.c
index 2cb23cb0c2e1..d26517fe3500 100644
--- a/arch/ia64/lib/checksum.c
+++ b/arch/ia64/lib/checksum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Network checksum routines
  *
diff --git a/arch/ia64/lib/clear_page.S b/arch/ia64/lib/clear_page.S
index 3cf5b76e587f..65b75085c8f4 100644
--- a/arch/ia64/lib/clear_page.S
+++ b/arch/ia64/lib/clear_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999-2002 Hewlett-Packard Co
  *	Stephane Eranian <eranian@hpl.hp.com>
diff --git a/arch/ia64/lib/clear_user.S b/arch/ia64/lib/clear_user.S
index 7b40731ee5d8..a28f39d349eb 100644
--- a/arch/ia64/lib/clear_user.S
+++ b/arch/ia64/lib/clear_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This routine clears to zero a linear memory buffer in user space.
  *
diff --git a/arch/ia64/lib/copy_page.S b/arch/ia64/lib/copy_page.S
index cbdb9e323ffb..176f857c522e 100644
--- a/arch/ia64/lib/copy_page.S
+++ b/arch/ia64/lib/copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Optimized version of the standard copy_page() function
diff --git a/arch/ia64/lib/copy_page_mck.S b/arch/ia64/lib/copy_page_mck.S
index c13f69036876..d6fd56e4f1c1 100644
--- a/arch/ia64/lib/copy_page_mck.S
+++ b/arch/ia64/lib/copy_page_mck.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * McKinley-optimized version of copy_page().
  *
diff --git a/arch/ia64/lib/copy_user.S b/arch/ia64/lib/copy_user.S
index 66facd52e8d0..f681556c6b86 100644
--- a/arch/ia64/lib/copy_user.S
+++ b/arch/ia64/lib/copy_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Optimized version of the copy_user() routine.
diff --git a/arch/ia64/lib/csum_partial_copy.c b/arch/ia64/lib/csum_partial_copy.c
index 42f7678ef6ad..bf9396b1ed32 100644
--- a/arch/ia64/lib/csum_partial_copy.c
+++ b/arch/ia64/lib/csum_partial_copy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Network Checksum & Copy routine
  *
diff --git a/arch/ia64/lib/do_csum.S b/arch/ia64/lib/do_csum.S
index 1a431a5cf86f..6004dad2597c 100644
--- a/arch/ia64/lib/do_csum.S
+++ b/arch/ia64/lib/do_csum.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Optmized version of the standard do_csum() function
diff --git a/arch/ia64/lib/idiv32.S b/arch/ia64/lib/idiv32.S
index 715aed79a9ce..def92b708e6e 100644
--- a/arch/ia64/lib/idiv32.S
+++ b/arch/ia64/lib/idiv32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2000 Hewlett-Packard Co
  * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/lib/idiv64.S b/arch/ia64/lib/idiv64.S
index 25840f697753..a8ba3bd3d4d8 100644
--- a/arch/ia64/lib/idiv64.S
+++ b/arch/ia64/lib/idiv64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999-2000 Hewlett-Packard Co
  * Copyright (C) 1999-2000 David Mosberger-Tang <davidm@hpl.hp.com>
diff --git a/arch/ia64/lib/io.c b/arch/ia64/lib/io.c
index bcd16f8ad9d9..d107eaf3790d 100644
--- a/arch/ia64/lib/io.c
+++ b/arch/ia64/lib/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/types.h>
 
diff --git a/arch/ia64/lib/ip_fast_csum.S b/arch/ia64/lib/ip_fast_csum.S
index 648e0d4a4839..dc9e6e6fe876 100644
--- a/arch/ia64/lib/ip_fast_csum.S
+++ b/arch/ia64/lib/ip_fast_csum.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Optmized version of the ip_fast_csum() function
  * Used for calculating IP header checksum
diff --git a/arch/ia64/lib/memcpy.S b/arch/ia64/lib/memcpy.S
index ba172fd6acf4..91a625fddbf0 100644
--- a/arch/ia64/lib/memcpy.S
+++ b/arch/ia64/lib/memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Optimized version of the standard memcpy() function
diff --git a/arch/ia64/lib/memcpy_mck.S b/arch/ia64/lib/memcpy_mck.S
index bbbadc478f5b..cc4e6ac914b6 100644
--- a/arch/ia64/lib/memcpy_mck.S
+++ b/arch/ia64/lib/memcpy_mck.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Itanium 2-optimized version of memcpy and copy_user function
  *
diff --git a/arch/ia64/lib/memset.S b/arch/ia64/lib/memset.S
index 87b974704075..07a8b92c6496 100644
--- a/arch/ia64/lib/memset.S
+++ b/arch/ia64/lib/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Optimized version of the standard memset() function.
 
    Copyright (c) 2002 Hewlett-Packard Co/CERN
diff --git a/arch/ia64/lib/strlen.S b/arch/ia64/lib/strlen.S
index 1a6e17c657b4..d66de5966974 100644
--- a/arch/ia64/lib/strlen.S
+++ b/arch/ia64/lib/strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Optimized version of the standard strlen() function
diff --git a/arch/ia64/lib/strncpy_from_user.S b/arch/ia64/lib/strncpy_from_user.S
index ca9ccf280e2e..49eb81b69cd2 100644
--- a/arch/ia64/lib/strncpy_from_user.S
+++ b/arch/ia64/lib/strncpy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Just like strncpy() except that if a fault occurs during copying,
  * -EFAULT is returned.
diff --git a/arch/ia64/lib/strnlen_user.S b/arch/ia64/lib/strnlen_user.S
index 80a5dfd1d402..4b684d4da106 100644
--- a/arch/ia64/lib/strnlen_user.S
+++ b/arch/ia64/lib/strnlen_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Returns 0 if exception before NUL or reaching the supplied limit (N),
  * a value greater than N if the string is longer than the limit, else
diff --git a/arch/ia64/mm/Makefile b/arch/ia64/mm/Makefile
index bb0a01a81878..99a35039b548 100644
--- a/arch/ia64/mm/Makefile
+++ b/arch/ia64/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ia64-specific parts of the memory manager.
 #
diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c
index 878626805369..9b2d994cddf6 100644
--- a/arch/ia64/mm/discontig.c
+++ b/arch/ia64/mm/discontig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2000, 2003 Silicon Graphics, Inc.  All rights reserved.
  * Copyright (c) 2001 Intel Corp.
diff --git a/arch/ia64/mm/extable.c b/arch/ia64/mm/extable.c
index 10dd4a66e167..da477c11770b 100644
--- a/arch/ia64/mm/extable.c
+++ b/arch/ia64/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Kernel exception handling table support.  Derived from arch/alpha/mm/extable.c.
  *
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
index 15f09cfff335..dfdc152d6737 100644
--- a/arch/ia64/mm/fault.c
+++ b/arch/ia64/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MMU fault handling support.
  *
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
index ae35140332f7..d16e419fd712 100644
--- a/arch/ia64/mm/hugetlbpage.c
+++ b/arch/ia64/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IA-64 Huge TLB Page Support for Kernel.
  *
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index a4e8d6bd9cfa..7af4e05bb61e 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Initialize MMU support.
  *
diff --git a/arch/ia64/module.lds b/arch/ia64/module.lds
index 6481f42fbd8c..eff68f362793 100644
--- a/arch/ia64/module.lds
+++ b/arch/ia64/module.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 SECTIONS {
 	/* Group unwind sections into a single section: */
 	.IA_64.unwind_info : { *(.IA_64.unwind_info*) }
diff --git a/arch/ia64/oprofile/Makefile b/arch/ia64/oprofile/Makefile
index aad27a718ee0..cd134d6643bf 100644
--- a/arch/ia64/oprofile/Makefile
+++ b/arch/ia64/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS := $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c
index 41caa99add51..e1fa45b2148c 100644
--- a/arch/ia64/pci/fixup.c
+++ b/arch/ia64/pci/fixup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Exceptions for specific devices. Usually work-arounds for fatal design flaws.
  * Derived from fixup.c of i386 tree.
diff --git a/arch/ia64/scripts/check-gas b/arch/ia64/scripts/check-gas
index 2499e0b2243d..787cf9b6b04a 100755
--- a/arch/ia64/scripts/check-gas
+++ b/arch/ia64/scripts/check-gas
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 dir=$(dirname $0)
 CC=$1
 OBJDUMP=$2
diff --git a/arch/ia64/scripts/check-segrel.S b/arch/ia64/scripts/check-segrel.S
index 3be4e3dbeb83..65d6378adaaa 100644
--- a/arch/ia64/scripts/check-segrel.S
+++ b/arch/ia64/scripts/check-segrel.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.rodata
 	data4 @segrel(start)
 	.data
diff --git a/arch/ia64/scripts/check-segrel.lds b/arch/ia64/scripts/check-segrel.lds
index 85a0d54fb5ab..c385d246e458 100644
--- a/arch/ia64/scripts/check-segrel.lds
+++ b/arch/ia64/scripts/check-segrel.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 SECTIONS {
 	. = SIZEOF_HEADERS;
 	.rodata : { *(.rodata) } :ro
diff --git a/arch/ia64/scripts/check-text-align.S b/arch/ia64/scripts/check-text-align.S
index 03f586abb734..107fa1c88c2e 100644
--- a/arch/ia64/scripts/check-text-align.S
+++ b/arch/ia64/scripts/check-text-align.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.proc foo
 	.prologue
 foo:	.save rp, r2
diff --git a/arch/ia64/scripts/toolchain-flags b/arch/ia64/scripts/toolchain-flags
index 3f0c2adacb70..12dff5c981cf 100755
--- a/arch/ia64/scripts/toolchain-flags
+++ b/arch/ia64/scripts/toolchain-flags
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # Check whether linker can handle cross-segment @segrel():
 #
diff --git a/arch/ia64/scripts/unwcheck.py b/arch/ia64/scripts/unwcheck.py
index 2bfd941ff7c7..89f3a1480a63 100644
--- a/arch/ia64/scripts/unwcheck.py
+++ b/arch/ia64/scripts/unwcheck.py
@@ -1,4 +1,5 @@
 #!/usr/bin/python
+# SPDX-License-Identifier: GPL-2.0
 #
 # Usage: unwcheck.py FILE
 #
diff --git a/arch/ia64/sn/kernel/bte.c b/arch/ia64/sn/kernel/bte.c
index b2eb48490754..9146192b86f5 100644
--- a/arch/ia64/sn/kernel/bte.c
+++ b/arch/ia64/sn/kernel/bte.c
@@ -219,7 +219,7 @@ retry_bteop:
 				BTE_LNSTAT_LOAD(bte), *bte->most_rcnt_na) );
 			bte->bte_error_count++;
 			bte->bh_error = IBLS_ERROR;
-			bte_error_handler((unsigned long)NODEPDA(bte->bte_cnode));
+			bte_error_handler(NODEPDA(bte->bte_cnode));
 			*bte->most_rcnt_na = BTE_WORD_AVAILABLE;
 			goto retry_bteop;
 		}
@@ -414,6 +414,12 @@ EXPORT_SYMBOL(bte_unaligned_copy);
  * Block Transfer Engine initialization functions.
  *
  ***********************************************************************/
+static void bte_recovery_timeout(struct timer_list *t)
+{
+	struct nodepda_s *nodepda = from_timer(nodepda, t, bte_recovery_timer);
+
+	bte_error_handler(nodepda);
+}
 
 /*
  * bte_init_node(nodepda, cnode)
@@ -436,9 +442,7 @@ void bte_init_node(nodepda_t * mynodepda, cnodeid_t cnode)
 	 * will point at this one bte_recover structure to get the lock.
 	 */
 	spin_lock_init(&mynodepda->bte_recovery_lock);
-	init_timer(&mynodepda->bte_recovery_timer);
-	mynodepda->bte_recovery_timer.function = bte_error_handler;
-	mynodepda->bte_recovery_timer.data = (unsigned long)mynodepda;
+	timer_setup(&mynodepda->bte_recovery_timer, bte_recovery_timeout, 0);
 
 	for (i = 0; i < BTES_PER_NODE; i++) {
 		u64 *base_addr;
diff --git a/arch/ia64/sn/kernel/bte_error.c b/arch/ia64/sn/kernel/bte_error.c
index 4cb09f3f1efc..d92786c09b34 100644
--- a/arch/ia64/sn/kernel/bte_error.c
+++ b/arch/ia64/sn/kernel/bte_error.c
@@ -27,15 +27,12 @@
  * transfers to be queued.
  */
 
-void bte_error_handler(unsigned long);
-
 /*
  * Wait until all BTE related CRBs are completed
  * and then reset the interfaces.
  */
-int shub1_bte_error_handler(unsigned long _nodepda)
+static int shub1_bte_error_handler(struct nodepda_s *err_nodepda)
 {
-	struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
 	struct timer_list *recovery_timer = &err_nodepda->bte_recovery_timer;
 	nasid_t nasid;
 	int i;
@@ -131,9 +128,8 @@ int shub1_bte_error_handler(unsigned long _nodepda)
  * Wait until all BTE related CRBs are completed
  * and then reset the interfaces.
  */
-int shub2_bte_error_handler(unsigned long _nodepda)
+static int shub2_bte_error_handler(struct nodepda_s *err_nodepda)
 {
-	struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
 	struct timer_list *recovery_timer = &err_nodepda->bte_recovery_timer;
 	struct bteinfo_s *bte;
 	nasid_t nasid;
@@ -170,9 +166,8 @@ int shub2_bte_error_handler(unsigned long _nodepda)
  * Wait until all BTE related CRBs are completed
  * and then reset the interfaces.
  */
-void bte_error_handler(unsigned long _nodepda)
+void bte_error_handler(struct nodepda_s *err_nodepda)
 {
-	struct nodepda_s *err_nodepda = (struct nodepda_s *)_nodepda;
 	spinlock_t *recovery_lock = &err_nodepda->bte_recovery_lock;
 	int i;
 	unsigned long irq_flags;
@@ -199,12 +194,12 @@ void bte_error_handler(unsigned long _nodepda)
 	}
 
 	if (is_shub1()) {
-		if (shub1_bte_error_handler(_nodepda)) {
+		if (shub1_bte_error_handler(err_nodepda)) {
 			spin_unlock_irqrestore(recovery_lock, irq_flags);
 			return;
 		}
 	} else {
-		if (shub2_bte_error_handler(_nodepda)) {
+		if (shub2_bte_error_handler(err_nodepda)) {
 			spin_unlock_irqrestore(recovery_lock, irq_flags);
 			return;
 		}
@@ -255,6 +250,6 @@ bte_crb_error_handler(cnodeid_t cnode, int btenum,
 
 	BTE_PRINTK(("Got an error on cnode %d bte %d: HW error type 0x%x\n",
 		bte->bte_cnode, bte->bte_num, ioe->ie_errortype));
-	bte_error_handler((unsigned long) NODEPDA(cnode));
+	bte_error_handler(NODEPDA(cnode));
 }
 
diff --git a/arch/ia64/sn/kernel/huberror.c b/arch/ia64/sn/kernel/huberror.c
index f925dec2da92..97fa56dddf50 100644
--- a/arch/ia64/sn/kernel/huberror.c
+++ b/arch/ia64/sn/kernel/huberror.c
@@ -50,7 +50,7 @@ static irqreturn_t hub_eint_handler(int irq, void *arg)
 			if ((int)ret_stuff.v0)
 				panic("%s: Fatal TIO Error", __func__);
 		} else
-			bte_error_handler((unsigned long)NODEPDA(nasid_to_cnodeid(nasid)));
+			bte_error_handler(NODEPDA(nasid_to_cnodeid(nasid)));
 
 	return IRQ_HANDLED;
 }
diff --git a/arch/ia64/sn/kernel/mca.c b/arch/ia64/sn/kernel/mca.c
index 5b799d4deb74..bc3bd930c74c 100644
--- a/arch/ia64/sn/kernel/mca.c
+++ b/arch/ia64/sn/kernel/mca.c
@@ -72,7 +72,7 @@ static void sn_cpei_handler(int irq, void *devid, struct pt_regs *regs)
 	ia64_sn_plat_cpei_handler();
 }
 
-static void sn_cpei_timer_handler(unsigned long dummy)
+static void sn_cpei_timer_handler(struct timer_list *unused)
 {
 	sn_cpei_handler(-1, NULL, NULL);
 	mod_timer(&sn_cpei_timer, jiffies + CPEI_INTERVAL);
@@ -80,9 +80,8 @@ static void sn_cpei_timer_handler(unsigned long dummy)
 
 void sn_init_cpei_timer(void)
 {
-	init_timer(&sn_cpei_timer);
+	timer_setup(&sn_cpei_timer, sn_cpei_timer_handler, 0);
 	sn_cpei_timer.expires = jiffies + CPEI_INTERVAL;
-	sn_cpei_timer.function = sn_cpei_timer_handler;
 	add_timer(&sn_cpei_timer);
 }
 
diff --git a/arch/ia64/sn/kernel/sn2/timer.c b/arch/ia64/sn/kernel/sn2/timer.c
index 66edc36426ed..3009d9d86f29 100644
--- a/arch/ia64/sn/kernel/sn2/timer.c
+++ b/arch/ia64/sn/kernel/sn2/timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/ia64/sn/kernel/sn2/timer.c
  *
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 87cde1e4b38c..0d9446c37ae8 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config M32R
 	bool
 	default y
@@ -194,6 +195,10 @@ config TIMER_DIVIDE
 	int "Timer divider (integer)"
 	default "128"
 
+config CPU_BIG_ENDIAN
+        bool "Generate big endian code"
+	default n
+
 config CPU_LITTLE_ENDIAN
         bool "Generate little endian code"
 	default n
diff --git a/arch/m32r/Kconfig.debug b/arch/m32r/Kconfig.debug
index 6c612b7691b0..ffca1e194f91 100644
--- a/arch/m32r/Kconfig.debug
+++ b/arch/m32r/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/m32r/Makefile b/arch/m32r/Makefile
index def8dd0b6bc5..d73b58c847a6 100644
--- a/arch/m32r/Makefile
+++ b/arch/m32r/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # m32r/Makefile
 #
diff --git a/arch/m32r/boot/compressed/Makefile b/arch/m32r/boot/compressed/Makefile
index 0606a727aab2..abd3c75ebd32 100644
--- a/arch/m32r/boot/compressed/Makefile
+++ b/arch/m32r/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/m32r/boot/compressed/Makefile
 #
diff --git a/arch/m32r/boot/compressed/boot.h b/arch/m32r/boot/compressed/boot.h
index 9272e38d1104..7fce713e8aac 100644
--- a/arch/m32r/boot/compressed/boot.h
+++ b/arch/m32r/boot/compressed/boot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 1. load vmlinuz
  *
diff --git a/arch/m32r/boot/compressed/head.S b/arch/m32r/boot/compressed/head.S
index 95a0563ff076..39b693640375 100644
--- a/arch/m32r/boot/compressed/head.S
+++ b/arch/m32r/boot/compressed/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/boot/compressed/head.S
  *
diff --git a/arch/m32r/boot/compressed/m32r_sio.c b/arch/m32r/boot/compressed/m32r_sio.c
index cf3023dced49..9d34bd063c31 100644
--- a/arch/m32r/boot/compressed/m32r_sio.c
+++ b/arch/m32r/boot/compressed/m32r_sio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/m32r/boot/compressed/m32r_sio.c
  *
diff --git a/arch/m32r/boot/compressed/misc.c b/arch/m32r/boot/compressed/misc.c
index 3a7692745868..43e367055669 100644
--- a/arch/m32r/boot/compressed/misc.c
+++ b/arch/m32r/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/m32r/boot/compressed/misc.c
  *
diff --git a/arch/m32r/boot/compressed/vmlinux.lds.S b/arch/m32r/boot/compressed/vmlinux.lds.S
index dd11963f6939..c393eb559c4c 100644
--- a/arch/m32r/boot/compressed/vmlinux.lds.S
+++ b/arch/m32r/boot/compressed/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 OUTPUT_ARCH(m32r)
 ENTRY(startup)
diff --git a/arch/m32r/boot/setup.S b/arch/m32r/boot/setup.S
index ef843d63083d..5909a825e2ed 100644
--- a/arch/m32r/boot/setup.S
+++ b/arch/m32r/boot/setup.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/boot/setup.S -- A setup code.
  *
diff --git a/arch/m32r/include/asm/assembler.h b/arch/m32r/include/asm/assembler.h
index 728799fc70aa..ed90d894f285 100644
--- a/arch/m32r/include/asm/assembler.h
+++ b/arch/m32r/include/asm/assembler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_ASSEMBLER_H
 #define _ASM_M32R_ASSEMBLER_H
 
diff --git a/arch/m32r/include/asm/atomic.h b/arch/m32r/include/asm/atomic.h
index 640cc1c7099f..8bf67e55ff54 100644
--- a/arch/m32r/include/asm/atomic.h
+++ b/arch/m32r/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_ATOMIC_H
 #define _ASM_M32R_ATOMIC_H
 
diff --git a/arch/m32r/include/asm/bitops.h b/arch/m32r/include/asm/bitops.h
index 86ba2b42a6cf..64e70e57c154 100644
--- a/arch/m32r/include/asm/bitops.h
+++ b/arch/m32r/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_BITOPS_H
 #define _ASM_M32R_BITOPS_H
 
diff --git a/arch/m32r/include/asm/bug.h b/arch/m32r/include/asm/bug.h
index 4cc0462c15b8..7197688254da 100644
--- a/arch/m32r/include/asm/bug.h
+++ b/arch/m32r/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32R_BUG_H
 #define _M32R_BUG_H
 #include <asm-generic/bug.h>
diff --git a/arch/m32r/include/asm/bugs.h b/arch/m32r/include/asm/bugs.h
index f77214eff136..74a6d428aebe 100644
--- a/arch/m32r/include/asm/bugs.h
+++ b/arch/m32r/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_BUGS_H
 #define _ASM_M32R_BUGS_H
 
diff --git a/arch/m32r/include/asm/cache.h b/arch/m32r/include/asm/cache.h
index 40b3ee98193d..47a766a258f8 100644
--- a/arch/m32r/include/asm/cache.h
+++ b/arch/m32r/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_CACHE_H
 #define _ASM_M32R_CACHE_H
 
diff --git a/arch/m32r/include/asm/cachectl.h b/arch/m32r/include/asm/cachectl.h
index 2aab8f6fff41..12f73f6c1759 100644
--- a/arch/m32r/include/asm/cachectl.h
+++ b/arch/m32r/include/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * cachectl.h -- defines for M32R cache control system calls
  *
diff --git a/arch/m32r/include/asm/cacheflush.h b/arch/m32r/include/asm/cacheflush.h
index 8e8e04516c39..5ad2a3045483 100644
--- a/arch/m32r/include/asm/cacheflush.h
+++ b/arch/m32r/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_CACHEFLUSH_H
 #define _ASM_M32R_CACHEFLUSH_H
 
diff --git a/arch/m32r/include/asm/cmpxchg.h b/arch/m32r/include/asm/cmpxchg.h
index 23c9d0537201..1ccdce5ff0ac 100644
--- a/arch/m32r/include/asm/cmpxchg.h
+++ b/arch/m32r/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_CMPXCHG_H
 #define _ASM_M32R_CMPXCHG_H
 
diff --git a/arch/m32r/include/asm/dma-mapping.h b/arch/m32r/include/asm/dma-mapping.h
index aff3ae8b62f7..4abfc07f4762 100644
--- a/arch/m32r/include/asm/dma-mapping.h
+++ b/arch/m32r/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_DMA_MAPPING_H
 #define _ASM_M32R_DMA_MAPPING_H
 
diff --git a/arch/m32r/include/asm/dma.h b/arch/m32r/include/asm/dma.h
index 52f6a22dd232..661bc3b343ed 100644
--- a/arch/m32r/include/asm/dma.h
+++ b/arch/m32r/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_DMA_H
 #define _ASM_M32R_DMA_H
 
diff --git a/arch/m32r/include/asm/elf.h b/arch/m32r/include/asm/elf.h
index 8acc9da9a15e..576b2ff57957 100644
--- a/arch/m32r/include/asm/elf.h
+++ b/arch/m32r/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R__ELF_H
 #define _ASM_M32R__ELF_H
 
diff --git a/arch/m32r/include/asm/emergency-restart.h b/arch/m32r/include/asm/emergency-restart.h
index 108d8c48e42e..cca44d5ae264 100644
--- a/arch/m32r/include/asm/emergency-restart.h
+++ b/arch/m32r/include/asm/emergency-restart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EMERGENCY_RESTART_H
 #define _ASM_EMERGENCY_RESTART_H
 
diff --git a/arch/m32r/include/asm/fb.h b/arch/m32r/include/asm/fb.h
index d92e99cd8c8a..9a0bca2686fd 100644
--- a/arch/m32r/include/asm/fb.h
+++ b/arch/m32r/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/m32r/include/asm/hardirq.h b/arch/m32r/include/asm/hardirq.h
index 5f2ac4f64ddf..10c23de02b3a 100644
--- a/arch/m32r/include/asm/hardirq.h
+++ b/arch/m32r/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __KERNEL__
 #ifndef __ASM_HARDIRQ_H
 #define __ASM_HARDIRQ_H
diff --git a/arch/m32r/include/asm/io.h b/arch/m32r/include/asm/io.h
index 4b0f5e001d4d..1b653bb16f9a 100644
--- a/arch/m32r/include/asm/io.h
+++ b/arch/m32r/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_IO_H
 #define _ASM_M32R_IO_H
 
diff --git a/arch/m32r/include/asm/irq.h b/arch/m32r/include/asm/irq.h
index 242028b4d86a..85b475fff90e 100644
--- a/arch/m32r/include/asm/irq.h
+++ b/arch/m32r/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __KERNEL__
 #ifndef _ASM_M32R_IRQ_H
 #define _ASM_M32R_IRQ_H
diff --git a/arch/m32r/include/asm/kmap_types.h b/arch/m32r/include/asm/kmap_types.h
index 4cdb5e3a06bf..3dcba0d17d40 100644
--- a/arch/m32r/include/asm/kmap_types.h
+++ b/arch/m32r/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M32R_KMAP_TYPES_H
 #define __M32R_KMAP_TYPES_H
 
diff --git a/arch/m32r/include/asm/linkage.h b/arch/m32r/include/asm/linkage.h
index a9fb151cf648..f1aee6ec5bc3 100644
--- a/arch/m32r/include/asm/linkage.h
+++ b/arch/m32r/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/m32r/include/asm/local.h b/arch/m32r/include/asm/local.h
index 4045db3e4f65..6780680c185d 100644
--- a/arch/m32r/include/asm/local.h
+++ b/arch/m32r/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M32R_LOCAL_H
 #define __M32R_LOCAL_H
 
diff --git a/arch/m32r/include/asm/m32102.h b/arch/m32r/include/asm/m32102.h
index 52807f8db166..f0a986fece65 100644
--- a/arch/m32r/include/asm/m32102.h
+++ b/arch/m32r/include/asm/m32102.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32102_H_
 #define _M32102_H_
 
diff --git a/arch/m32r/include/asm/m32r.h b/arch/m32r/include/asm/m32r.h
index 214b44b40757..d27f056d92f3 100644
--- a/arch/m32r/include/asm/m32r.h
+++ b/arch/m32r/include/asm/m32r.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_M32R_H_
 #define _ASM_M32R_M32R_H_
 
diff --git a/arch/m32r/include/asm/m32r_mp_fpga.h b/arch/m32r/include/asm/m32r_mp_fpga.h
index 976d2b995919..8eeaa9a420c5 100644
--- a/arch/m32r/include/asm/m32r_mp_fpga.h
+++ b/arch/m32r/include/asm/m32r_mp_fpga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_M32R_MP_FPGA_
 #define _ASM_M32R_M32R_MP_FPGA_
 
diff --git a/arch/m32r/include/asm/mc146818rtc.h b/arch/m32r/include/asm/mc146818rtc.h
index aa1b7bf84f51..4effa4704347 100644
--- a/arch/m32r/include/asm/mc146818rtc.h
+++ b/arch/m32r/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/m32r/include/asm/mmu.h b/arch/m32r/include/asm/mmu.h
index 150cb92bb666..34bcccd8007d 100644
--- a/arch/m32r/include/asm/mmu.h
+++ b/arch/m32r/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_MMU_H
 #define _ASM_M32R_MMU_H
 
diff --git a/arch/m32r/include/asm/mmu_context.h b/arch/m32r/include/asm/mmu_context.h
index 1230b7050d8e..8a499d0fb3a2 100644
--- a/arch/m32r/include/asm/mmu_context.h
+++ b/arch/m32r/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_MMU_CONTEXT_H
 #define _ASM_M32R_MMU_CONTEXT_H
 #ifdef __KERNEL__
diff --git a/arch/m32r/include/asm/mmzone.h b/arch/m32r/include/asm/mmzone.h
index 115ced33febd..568946c13ba6 100644
--- a/arch/m32r/include/asm/mmzone.h
+++ b/arch/m32r/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Pat Gaughen (gone@us.ibm.com) Mar 2002
  *
diff --git a/arch/m32r/include/asm/page.h b/arch/m32r/include/asm/page.h
index 725ede8f2889..fe4e38b394d3 100644
--- a/arch/m32r/include/asm/page.h
+++ b/arch/m32r/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PAGE_H
 #define _ASM_M32R_PAGE_H
 
diff --git a/arch/m32r/include/asm/pci.h b/arch/m32r/include/asm/pci.h
index 07d3834c6dec..cbcb28b5f6ff 100644
--- a/arch/m32r/include/asm/pci.h
+++ b/arch/m32r/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PCI_H
 #define _ASM_M32R_PCI_H
 
diff --git a/arch/m32r/include/asm/percpu.h b/arch/m32r/include/asm/percpu.h
index e3169301fe66..41e1680d1117 100644
--- a/arch/m32r/include/asm/percpu.h
+++ b/arch/m32r/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_M32R_PERCPU__
 #define __ARCH_M32R_PERCPU__
 
diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index 2d55a064ccac..eed2cad57d68 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PGALLOC_H
 #define _ASM_M32R_PGALLOC_H
 
diff --git a/arch/m32r/include/asm/pgtable-2level.h b/arch/m32r/include/asm/pgtable-2level.h
index 421e6ba3a173..d7ab1e94e3cb 100644
--- a/arch/m32r/include/asm/pgtable-2level.h
+++ b/arch/m32r/include/asm/pgtable-2level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PGTABLE_2LEVEL_H
 #define _ASM_M32R_PGTABLE_2LEVEL_H
 #ifdef __KERNEL__
diff --git a/arch/m32r/include/asm/pgtable.h b/arch/m32r/include/asm/pgtable.h
index 8c1fb902a9ce..eb7f9050c8d6 100644
--- a/arch/m32r/include/asm/pgtable.h
+++ b/arch/m32r/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_PGTABLE_H
 #define _ASM_M32R_PGTABLE_H
 
diff --git a/arch/m32r/include/asm/processor.h b/arch/m32r/include/asm/processor.h
index 657874eeeccc..c70fa9ac7169 100644
--- a/arch/m32r/include/asm/processor.h
+++ b/arch/m32r/include/asm/processor.h
@@ -118,14 +118,6 @@ struct mm_struct;
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
 
-/* Copy and release all segment info associated with a VM */
-extern void copy_segments(struct task_struct *p, struct mm_struct * mm);
-extern void release_segments(struct mm_struct * mm);
-
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm)  do { } while (0)
-#define release_segments(mm)  do { } while (0)
-
 unsigned long get_wchan(struct task_struct *p);
 #define KSTK_EIP(tsk)  ((tsk)->thread.lr)
 #define KSTK_ESP(tsk)  ((tsk)->thread.sp)
diff --git a/arch/m32r/include/asm/rtc.h b/arch/m32r/include/asm/rtc.h
index 0340633f3f4d..a94cf1edc60f 100644
--- a/arch/m32r/include/asm/rtc.h
+++ b/arch/m32r/include/asm/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RTC_H__
 #define __RTC_H__
 
diff --git a/arch/m32r/include/asm/s1d13806.h b/arch/m32r/include/asm/s1d13806.h
index 248d36a82d79..79e98a259ebe 100644
--- a/arch/m32r/include/asm/s1d13806.h
+++ b/arch/m32r/include/asm/s1d13806.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 //----------------------------------------------------------------------------
 //
 //  File generated by S1D13806CFG.EXE
diff --git a/arch/m32r/include/asm/segment.h b/arch/m32r/include/asm/segment.h
index 42b11aeb3249..4095f14728e5 100644
--- a/arch/m32r/include/asm/segment.h
+++ b/arch/m32r/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SEGMENT_H
 #define _ASM_M32R_SEGMENT_H
 
diff --git a/arch/m32r/include/asm/serial.h b/arch/m32r/include/asm/serial.h
index 5ac244c72f15..b1375c841b4d 100644
--- a/arch/m32r/include/asm/serial.h
+++ b/arch/m32r/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SERIAL_H
 #define _ASM_M32R_SERIAL_H
 
diff --git a/arch/m32r/include/asm/setup.h b/arch/m32r/include/asm/setup.h
index bbe59a9ce8c6..71b4d6514078 100644
--- a/arch/m32r/include/asm/setup.h
+++ b/arch/m32r/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SETUP_H
 #define _ASM_M32R_SETUP_H
 
diff --git a/arch/m32r/include/asm/shmparam.h b/arch/m32r/include/asm/shmparam.h
index 35986d81a528..1af73d92c96d 100644
--- a/arch/m32r/include/asm/shmparam.h
+++ b/arch/m32r/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SHMPARAM_H
 #define _ASM_M32R_SHMPARAM_H
 
diff --git a/arch/m32r/include/asm/signal.h b/arch/m32r/include/asm/signal.h
index ed3ded6601e8..8bf57950d21e 100644
--- a/arch/m32r/include/asm/signal.h
+++ b/arch/m32r/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SIGNAL_H
 #define _ASM_M32R_SIGNAL_H
 
diff --git a/arch/m32r/include/asm/smp.h b/arch/m32r/include/asm/smp.h
index c689b828dfe2..763f22700ce6 100644
--- a/arch/m32r/include/asm/smp.h
+++ b/arch/m32r/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SMP_H
 #define _ASM_M32R_SMP_H
 
diff --git a/arch/m32r/include/asm/spinlock.h b/arch/m32r/include/asm/spinlock.h
index a56825592b90..0189f410f8f5 100644
--- a/arch/m32r/include/asm/spinlock.h
+++ b/arch/m32r/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SPINLOCK_H
 #define _ASM_M32R_SPINLOCK_H
 
@@ -28,7 +29,6 @@
  */
 
 #define arch_spin_is_locked(x)		(*(volatile int *)(&(x)->slock) <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 
 /**
  * arch_spin_trylock - Try spin lock and return a result
@@ -137,18 +137,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
  * semaphore.h for details.  -ben
  */
 
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(x) ((int)(x)->lock > 0)
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
-
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp0, tmp1;
@@ -317,11 +305,4 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
 	return 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif	/* _ASM_M32R_SPINLOCK_H */
diff --git a/arch/m32r/include/asm/spinlock_types.h b/arch/m32r/include/asm/spinlock_types.h
index 92e27672661f..bb0d17b64198 100644
--- a/arch/m32r/include/asm/spinlock_types.h
+++ b/arch/m32r/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SPINLOCK_TYPES_H
 #define _ASM_M32R_SPINLOCK_TYPES_H
 
diff --git a/arch/m32r/include/asm/string.h b/arch/m32r/include/asm/string.h
index e61e2b0bfc1f..a9ea3b6c3e5a 100644
--- a/arch/m32r/include/asm/string.h
+++ b/arch/m32r/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_STRING_H
 #define _ASM_M32R_STRING_H
 
diff --git a/arch/m32r/include/asm/syscall.h b/arch/m32r/include/asm/syscall.h
index 25f316f2b78d..22c8516d3c18 100644
--- a/arch/m32r/include/asm/syscall.h
+++ b/arch/m32r/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_SYSCALL_H
 #define _ASM_M32R_SYSCALL_H
 
diff --git a/arch/m32r/include/asm/termios.h b/arch/m32r/include/asm/termios.h
index 680898f0b3d6..40274b89cea5 100644
--- a/arch/m32r/include/asm/termios.h
+++ b/arch/m32r/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32R_TERMIOS_H
 #define _M32R_TERMIOS_H
 
diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h
index f630d9c30b28..b3a215b0ce0a 100644
--- a/arch/m32r/include/asm/thread_info.h
+++ b/arch/m32r/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_THREAD_INFO_H
 #define _ASM_M32R_THREAD_INFO_H
 
diff --git a/arch/m32r/include/asm/timex.h b/arch/m32r/include/asm/timex.h
index bb9fe4feb12d..a4f9f852d9e6 100644
--- a/arch/m32r/include/asm/timex.h
+++ b/arch/m32r/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TIMEX_H
 #define _ASM_M32R_TIMEX_H
 
diff --git a/arch/m32r/include/asm/tlb.h b/arch/m32r/include/asm/tlb.h
index c7ebd8d48f3b..3576f88b6ea4 100644
--- a/arch/m32r/include/asm/tlb.h
+++ b/arch/m32r/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M32R_TLB_H
 #define _M32R_TLB_H
 
diff --git a/arch/m32r/include/asm/tlbflush.h b/arch/m32r/include/asm/tlbflush.h
index 92614b0ccf17..f6c7237316d0 100644
--- a/arch/m32r/include/asm/tlbflush.h
+++ b/arch/m32r/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TLBFLUSH_H
 #define _ASM_M32R_TLBFLUSH_H
 
diff --git a/arch/m32r/include/asm/topology.h b/arch/m32r/include/asm/topology.h
index d607eb32bd7e..ee79404e8878 100644
--- a/arch/m32r/include/asm/topology.h
+++ b/arch/m32r/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TOPOLOGY_H
 #define _ASM_M32R_TOPOLOGY_H
 
diff --git a/arch/m32r/include/asm/types.h b/arch/m32r/include/asm/types.h
index 04a44c6ee34d..fce0bf60536c 100644
--- a/arch/m32r/include/asm/types.h
+++ b/arch/m32r/include/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_TYPES_H
 #define _ASM_M32R_TYPES_H
 
diff --git a/arch/m32r/include/asm/uaccess.h b/arch/m32r/include/asm/uaccess.h
index 496c4716dbc8..9d89bc3d8181 100644
--- a/arch/m32r/include/asm/uaccess.h
+++ b/arch/m32r/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UACCESS_H
 #define _ASM_M32R_UACCESS_H
 
diff --git a/arch/m32r/include/asm/ucontext.h b/arch/m32r/include/asm/ucontext.h
index 09324741eec3..5f9de3736624 100644
--- a/arch/m32r/include/asm/ucontext.h
+++ b/arch/m32r/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UCONTEXT_H
 #define _ASM_M32R_UCONTEXT_H
 
diff --git a/arch/m32r/include/asm/unaligned.h b/arch/m32r/include/asm/unaligned.h
index 377eb20d1ec6..5981361672f9 100644
--- a/arch/m32r/include/asm/unaligned.h
+++ b/arch/m32r/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UNALIGNED_H
 #define _ASM_M32R_UNALIGNED_H
 
diff --git a/arch/m32r/include/asm/unistd.h b/arch/m32r/include/asm/unistd.h
index de602533a3bd..dee4c196972e 100644
--- a/arch/m32r/include/asm/unistd.h
+++ b/arch/m32r/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_UNISTD_H
 #define _ASM_M32R_UNISTD_H
 
diff --git a/arch/m32r/include/asm/user.h b/arch/m32r/include/asm/user.h
index 03b3c11c2aff..489b60d4aec2 100644
--- a/arch/m32r/include/asm/user.h
+++ b/arch/m32r/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_USER_H
 #define _ASM_M32R_USER_H
 
diff --git a/arch/m32r/include/asm/vga.h b/arch/m32r/include/asm/vga.h
index a1b63061c06f..783d5bf779c2 100644
--- a/arch/m32r/include/asm/vga.h
+++ b/arch/m32r/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_VGA_H
 #define _ASM_M32R_VGA_H
 
diff --git a/arch/m32r/include/asm/xor.h b/arch/m32r/include/asm/xor.h
index 6d525259df3e..a4d546752c77 100644
--- a/arch/m32r/include/asm/xor.h
+++ b/arch/m32r/include/asm/xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M32R_XOR_H
 #define _ASM_M32R_XOR_H
 
diff --git a/arch/m32r/include/uapi/asm/bitsperlong.h b/arch/m32r/include/uapi/asm/bitsperlong.h
index 6dc0bb0c13b2..76da34b10f59 100644
--- a/arch/m32r/include/uapi/asm/bitsperlong.h
+++ b/arch/m32r/include/uapi/asm/bitsperlong.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/bitsperlong.h>
diff --git a/arch/m32r/include/uapi/asm/byteorder.h b/arch/m32r/include/uapi/asm/byteorder.h
index 21855d8b028b..9b4a8ba483cd 100644
--- a/arch/m32r/include/uapi/asm/byteorder.h
+++ b/arch/m32r/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_BYTEORDER_H
 #define _ASM_M32R_BYTEORDER_H
 
diff --git a/arch/m32r/include/uapi/asm/errno.h b/arch/m32r/include/uapi/asm/errno.h
index 777149262aad..ab38ef607882 100644
--- a/arch/m32r/include/uapi/asm/errno.h
+++ b/arch/m32r/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_ERRNO_H
 #define _ASM_M32R_ERRNO_H
 
diff --git a/arch/m32r/include/uapi/asm/fcntl.h b/arch/m32r/include/uapi/asm/fcntl.h
index 46ab12db5739..a77648c505d1 100644
--- a/arch/m32r/include/uapi/asm/fcntl.h
+++ b/arch/m32r/include/uapi/asm/fcntl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/fcntl.h>
diff --git a/arch/m32r/include/uapi/asm/ioctl.h b/arch/m32r/include/uapi/asm/ioctl.h
index b279fe06dfe5..b809c4566e5f 100644
--- a/arch/m32r/include/uapi/asm/ioctl.h
+++ b/arch/m32r/include/uapi/asm/ioctl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ioctl.h>
diff --git a/arch/m32r/include/uapi/asm/ioctls.h b/arch/m32r/include/uapi/asm/ioctls.h
index 349bf87bfbd0..31da4c3bab94 100644
--- a/arch/m32r/include/uapi/asm/ioctls.h
+++ b/arch/m32r/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_M32R_IOCTLS_H__
 #define __ARCH_M32R_IOCTLS_H__
 
diff --git a/arch/m32r/include/uapi/asm/ipcbuf.h b/arch/m32r/include/uapi/asm/ipcbuf.h
index 84c7e51cb6d0..90d6445a14df 100644
--- a/arch/m32r/include/uapi/asm/ipcbuf.h
+++ b/arch/m32r/include/uapi/asm/ipcbuf.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ipcbuf.h>
diff --git a/arch/m32r/include/uapi/asm/msgbuf.h b/arch/m32r/include/uapi/asm/msgbuf.h
index 0d5a877b813e..4386ff2735ba 100644
--- a/arch/m32r/include/uapi/asm/msgbuf.h
+++ b/arch/m32r/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_MSGBUF_H
 #define _ASM_M32R_MSGBUF_H
 
diff --git a/arch/m32r/include/uapi/asm/param.h b/arch/m32r/include/uapi/asm/param.h
index fa207bdf96e7..0bff6d6133f5 100644
--- a/arch/m32r/include/uapi/asm/param.h
+++ b/arch/m32r/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_PARAM_H
 #define _ASM_M32R_PARAM_H
 
diff --git a/arch/m32r/include/uapi/asm/poll.h b/arch/m32r/include/uapi/asm/poll.h
index c98509d3149e..b7132a305a47 100644
--- a/arch/m32r/include/uapi/asm/poll.h
+++ b/arch/m32r/include/uapi/asm/poll.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/poll.h>
diff --git a/arch/m32r/include/uapi/asm/posix_types.h b/arch/m32r/include/uapi/asm/posix_types.h
index 236de26a409b..63316fcb1b57 100644
--- a/arch/m32r/include/uapi/asm/posix_types.h
+++ b/arch/m32r/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_POSIX_TYPES_H
 #define _ASM_M32R_POSIX_TYPES_H
 
diff --git a/arch/m32r/include/uapi/asm/ptrace.h b/arch/m32r/include/uapi/asm/ptrace.h
index f6930a822517..99aec86cf5c0 100644
--- a/arch/m32r/include/uapi/asm/ptrace.h
+++ b/arch/m32r/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/include/asm-m32r/ptrace.h
  *
diff --git a/arch/m32r/include/uapi/asm/resource.h b/arch/m32r/include/uapi/asm/resource.h
index b1ce766e37a0..3282f3c4a5ca 100644
--- a/arch/m32r/include/uapi/asm/resource.h
+++ b/arch/m32r/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_RESOURCE_H
 #define _ASM_M32R_RESOURCE_H
 
diff --git a/arch/m32r/include/uapi/asm/sembuf.h b/arch/m32r/include/uapi/asm/sembuf.h
index c9873d6890e2..de34664d8cd7 100644
--- a/arch/m32r/include/uapi/asm/sembuf.h
+++ b/arch/m32r/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_SEMBUF_H
 #define _ASM_M32R_SEMBUF_H
 
diff --git a/arch/m32r/include/uapi/asm/setup.h b/arch/m32r/include/uapi/asm/setup.h
index 96961a42e5f4..d936a64bbafd 100644
--- a/arch/m32r/include/uapi/asm/setup.h
+++ b/arch/m32r/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_M32R_SETUP_H
 #define _UAPI_ASM_M32R_SETUP_H
 
diff --git a/arch/m32r/include/uapi/asm/shmbuf.h b/arch/m32r/include/uapi/asm/shmbuf.h
index b0cdf0aa7d65..44c2ea924829 100644
--- a/arch/m32r/include/uapi/asm/shmbuf.h
+++ b/arch/m32r/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_SHMBUF_H
 #define _ASM_M32R_SHMBUF_H
 
diff --git a/arch/m32r/include/uapi/asm/sigcontext.h b/arch/m32r/include/uapi/asm/sigcontext.h
index da4a9c36d09b..cc9ee73525ff 100644
--- a/arch/m32r/include/uapi/asm/sigcontext.h
+++ b/arch/m32r/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_SIGCONTEXT_H
 #define _ASM_M32R_SIGCONTEXT_H
 
diff --git a/arch/m32r/include/uapi/asm/signal.h b/arch/m32r/include/uapi/asm/signal.h
index 54acacb1f1f7..c2ac3417fb98 100644
--- a/arch/m32r/include/uapi/asm/signal.h
+++ b/arch/m32r/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_M32R_SIGNAL_H
 #define _UAPI_ASM_M32R_SIGNAL_H
 
diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h
index e268e51a38d1..cf5018e82c3d 100644
--- a/arch/m32r/include/uapi/asm/socket.h
+++ b/arch/m32r/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_SOCKET_H
 #define _ASM_M32R_SOCKET_H
 
diff --git a/arch/m32r/include/uapi/asm/sockios.h b/arch/m32r/include/uapi/asm/sockios.h
index 6c1fb9b43bdb..948229e474c5 100644
--- a/arch/m32r/include/uapi/asm/sockios.h
+++ b/arch/m32r/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_SOCKIOS_H
 #define _ASM_M32R_SOCKIOS_H
 
diff --git a/arch/m32r/include/uapi/asm/stat.h b/arch/m32r/include/uapi/asm/stat.h
index 98470fe483b6..0fe9f96ce8f0 100644
--- a/arch/m32r/include/uapi/asm/stat.h
+++ b/arch/m32r/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_STAT_H
 #define _ASM_M32R_STAT_H
 
diff --git a/arch/m32r/include/uapi/asm/statfs.h b/arch/m32r/include/uapi/asm/statfs.h
index 6eb4c6007e6b..d42ae20dbb2b 100644
--- a/arch/m32r/include/uapi/asm/statfs.h
+++ b/arch/m32r/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_STATFS_H
 #define _ASM_M32R_STATFS_H
 
diff --git a/arch/m32r/include/uapi/asm/swab.h b/arch/m32r/include/uapi/asm/swab.h
index 54dab001d6d1..18dce47d2841 100644
--- a/arch/m32r/include/uapi/asm/swab.h
+++ b/arch/m32r/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_SWAB_H
 #define _ASM_M32R_SWAB_H
 
diff --git a/arch/m32r/include/uapi/asm/termbits.h b/arch/m32r/include/uapi/asm/termbits.h
index 957a3c688549..6cbbae9695b4 100644
--- a/arch/m32r/include/uapi/asm/termbits.h
+++ b/arch/m32r/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M32R_TERMBITS_H
 #define _ASM_M32R_TERMBITS_H
 
diff --git a/arch/m32r/include/uapi/asm/termios.h b/arch/m32r/include/uapi/asm/termios.h
index 07ad27b8f7db..9b80a85e83ac 100644
--- a/arch/m32r/include/uapi/asm/termios.h
+++ b/arch/m32r/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_M32R_TERMIOS_H
 #define _UAPI_M32R_TERMIOS_H
 
diff --git a/arch/m32r/include/uapi/asm/unistd.h b/arch/m32r/include/uapi/asm/unistd.h
index 5a54f2ae3b51..adf8666a68ef 100644
--- a/arch/m32r/include/uapi/asm/unistd.h
+++ b/arch/m32r/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_M32R_UNISTD_H
 #define _UAPI_ASM_M32R_UNISTD_H
 
diff --git a/arch/m32r/kernel/Makefile b/arch/m32r/kernel/Makefile
index 0c09dad8b1f8..bd94dca51596 100644
--- a/arch/m32r/kernel/Makefile
+++ b/arch/m32r/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/M32R kernel.
 #
diff --git a/arch/m32r/kernel/align.c b/arch/m32r/kernel/align.c
index ec51e5b34860..2919a6647aff 100644
--- a/arch/m32r/kernel/align.c
+++ b/arch/m32r/kernel/align.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * align.c - address exception handler for M32R
  *
diff --git a/arch/m32r/kernel/asm-offsets.c b/arch/m32r/kernel/asm-offsets.c
index cd3d2fc9c8df..7cb90b459e07 100644
--- a/arch/m32r/kernel/asm-offsets.c
+++ b/arch/m32r/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/thread_info.h>
 #include <linux/kbuild.h>
 
diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index c639bfa32232..bbf48f2aa2a7 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/kernel/entry.S
  *
diff --git a/arch/m32r/kernel/head.S b/arch/m32r/kernel/head.S
index a46652dd83e6..1f040973df1c 100644
--- a/arch/m32r/kernel/head.S
+++ b/arch/m32r/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/kernel/head.S
  *
diff --git a/arch/m32r/kernel/irq.c b/arch/m32r/kernel/irq.c
index 5537f7397297..83b5032f176c 100644
--- a/arch/m32r/kernel/irq.c
+++ b/arch/m32r/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m32r/kernel/irq.c
  *
diff --git a/arch/m32r/kernel/m32r_ksyms.c b/arch/m32r/kernel/m32r_ksyms.c
index 68da6b800453..46ebe071e4d6 100644
--- a/arch/m32r/kernel/m32r_ksyms.c
+++ b/arch/m32r/kernel/m32r_ksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/smp.h>
 #include <linux/user.h>
diff --git a/arch/m32r/kernel/process.c b/arch/m32r/kernel/process.c
index 8cd7e03f4370..a1a4cb136e99 100644
--- a/arch/m32r/kernel/process.c
+++ b/arch/m32r/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/kernel/process.c
  *
diff --git a/arch/m32r/kernel/ptrace.c b/arch/m32r/kernel/ptrace.c
index 2d887400e30e..d702a5ca0f92 100644
--- a/arch/m32r/kernel/ptrace.c
+++ b/arch/m32r/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m32r/kernel/ptrace.c
  *
diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c
index 1a9e977287e6..b72d5db39f00 100644
--- a/arch/m32r/kernel/setup.c
+++ b/arch/m32r/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/kernel/setup.c
  *
diff --git a/arch/m32r/kernel/signal.c b/arch/m32r/kernel/signal.c
index 1ed597041fba..ba4d8d6330f1 100644
--- a/arch/m32r/kernel/signal.c
+++ b/arch/m32r/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/kernel/signal.c
  *
diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index f34957032504..22a50fc49ab7 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m32r/kernel/sys_m32r.c
  *
diff --git a/arch/m32r/kernel/syscall_table.S b/arch/m32r/kernel/syscall_table.S
index f365c19795ef..cf0bcf014b98 100644
--- a/arch/m32r/kernel/syscall_table.S
+++ b/arch/m32r/kernel/syscall_table.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 ENTRY(sys_call_table)
 	.long sys_restart_syscall	/* 0  -  old "setup()" system call*/
 	.long sys_exit
diff --git a/arch/m32r/kernel/time.c b/arch/m32r/kernel/time.c
index 093f2761aa51..521749fbbb56 100644
--- a/arch/m32r/kernel/time.c
+++ b/arch/m32r/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/kernel/time.c
  *
diff --git a/arch/m32r/kernel/traps.c b/arch/m32r/kernel/traps.c
index 647dd94a0c39..cb79fba79d43 100644
--- a/arch/m32r/kernel/traps.c
+++ b/arch/m32r/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/kernel/traps.c
  *
@@ -114,6 +115,15 @@ static void set_eit_vector_entries(void)
 	_flush_cache_copyback_all();
 }
 
+void abort(void)
+{
+	BUG();
+
+	/* if that doesn't kill us, halt */
+	panic("Oops failed to kill thread");
+}
+EXPORT_SYMBOL(abort);
+
 void __init trap_init(void)
 {
 	set_eit_vector_entries();
diff --git a/arch/m32r/kernel/vmlinux.lds.S b/arch/m32r/kernel/vmlinux.lds.S
index ad1fe56455aa..7e4d957f7f7f 100644
--- a/arch/m32r/kernel/vmlinux.lds.S
+++ b/arch/m32r/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make M32R Linux kernel
  */
 
diff --git a/arch/m32r/lib/ashxdi3.S b/arch/m32r/lib/ashxdi3.S
index 7fc0c19801ba..cd1acca53911 100644
--- a/arch/m32r/lib/ashxdi3.S
+++ b/arch/m32r/lib/ashxdi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/arch/m32r/lib/ashxdi3.S
  *
diff --git a/arch/m32r/lib/delay.c b/arch/m32r/lib/delay.c
index 940f4837e42b..ae1fe90892f9 100644
--- a/arch/m32r/lib/delay.c
+++ b/arch/m32r/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m32r/lib/delay.c
  *
diff --git a/arch/m32r/lib/libgcc.h b/arch/m32r/lib/libgcc.h
index 267aa435bc35..4854690d944a 100644
--- a/arch/m32r/lib/libgcc.h
+++ b/arch/m32r/lib/libgcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LIBGCC_H
 #define __ASM_LIBGCC_H
 
diff --git a/arch/m32r/lib/memcpy.S b/arch/m32r/lib/memcpy.S
index 05987cd639ef..249da3e3358d 100644
--- a/arch/m32r/lib/memcpy.S
+++ b/arch/m32r/lib/memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/lib/memcpy.S
  *
diff --git a/arch/m32r/lib/memset.S b/arch/m32r/lib/memset.S
index 2b2831a37927..e7f45e6c73f5 100644
--- a/arch/m32r/lib/memset.S
+++ b/arch/m32r/lib/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/lib/memset.S
  *
diff --git a/arch/m32r/lib/strlen.S b/arch/m32r/lib/strlen.S
index 916de9e8f801..41c77e387593 100644
--- a/arch/m32r/lib/strlen.S
+++ b/arch/m32r/lib/strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/strlen.S --  strlen code.
  *
diff --git a/arch/m32r/lib/ucmpdi2.c b/arch/m32r/lib/ucmpdi2.c
index 9d3c682c89b5..e20fa3484fd8 100644
--- a/arch/m32r/lib/ucmpdi2.c
+++ b/arch/m32r/lib/ucmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "libgcc.h"
 
 int __ucmpdi2(unsigned long long a, unsigned long long b)
diff --git a/arch/m32r/lib/usercopy.c b/arch/m32r/lib/usercopy.c
index b723b11107c7..0892a4341b3a 100644
--- a/arch/m32r/lib/usercopy.c
+++ b/arch/m32r/lib/usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * User address space access functions.
  * The non inlined parts of asm-m32r/uaccess.h are here.
diff --git a/arch/m32r/mm/Makefile b/arch/m32r/mm/Makefile
index c51c1c3b4a5f..cb20d90c51d1 100644
--- a/arch/m32r/mm/Makefile
+++ b/arch/m32r/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux M32R-specific parts of the memory manager.
 #
diff --git a/arch/m32r/mm/cache.c b/arch/m32r/mm/cache.c
index fac759584875..0d1ae744e56f 100644
--- a/arch/m32r/mm/cache.c
+++ b/arch/m32r/mm/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/mm/cache.c
  *
diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c
index 27196303ce36..eb8e7966dcaf 100644
--- a/arch/m32r/mm/discontig.c
+++ b/arch/m32r/mm/discontig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/mm/discontig.c
  *
diff --git a/arch/m32r/mm/extable.c b/arch/m32r/mm/extable.c
index 8ac8ba6ef60c..066982756a4e 100644
--- a/arch/m32r/mm/extable.c
+++ b/arch/m32r/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m32r/mm/extable.c
  */
diff --git a/arch/m32r/mm/fault-nommu.c b/arch/m32r/mm/fault-nommu.c
index e22d5ddae5cb..240e00067d5e 100644
--- a/arch/m32r/mm/fault-nommu.c
+++ b/arch/m32r/mm/fault-nommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/mm/fault.c
  *
diff --git a/arch/m32r/mm/fault.c b/arch/m32r/mm/fault.c
index a05dc3184594..46d9a5ca0e3a 100644
--- a/arch/m32r/mm/fault.c
+++ b/arch/m32r/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/mm/fault.c
  *
diff --git a/arch/m32r/mm/init.c b/arch/m32r/mm/init.c
index 11fa717d93b1..93abc8c3a46e 100644
--- a/arch/m32r/mm/init.c
+++ b/arch/m32r/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/mm/init.c
  *
diff --git a/arch/m32r/mm/mmu.S b/arch/m32r/mm/mmu.S
index e9491a5ae827..fd8f9c9b7b07 100644
--- a/arch/m32r/mm/mmu.S
+++ b/arch/m32r/mm/mmu.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/m32r/mm/mmu.S
  *
diff --git a/arch/m32r/oprofile/Makefile b/arch/m32r/oprofile/Makefile
index 06e7c81ead2e..8e63a3a5a64c 100644
--- a/arch/m32r/oprofile/Makefile
+++ b/arch/m32r/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS := $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/m32r/platforms/Makefile b/arch/m32r/platforms/Makefile
index da03e1a8fe91..9e1a82529ad9 100644
--- a/arch/m32r/platforms/Makefile
+++ b/arch/m32r/platforms/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # arch/m32r/platforms/Makefile
 obj-$(CONFIG_PLAT_M32104UT)	+= m32104ut/
 obj-$(CONFIG_PLAT_M32700UT)	+= m32700ut/
diff --git a/arch/m32r/platforms/m32104ut/io.c b/arch/m32r/platforms/m32104ut/io.c
index e5d8be6fbb2d..ff2bb3b58bb5 100644
--- a/arch/m32r/platforms/m32104ut/io.c
+++ b/arch/m32r/platforms/m32104ut/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/m32104ut/io.c
  *
diff --git a/arch/m32r/platforms/m32104ut/setup.c b/arch/m32r/platforms/m32104ut/setup.c
index e2dd778aeac7..297936003b1f 100644
--- a/arch/m32r/platforms/m32104ut/setup.c
+++ b/arch/m32r/platforms/m32104ut/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/m32104ut/setup.c
  *
diff --git a/arch/m32r/platforms/mappi/io.c b/arch/m32r/platforms/mappi/io.c
index ac1c396d477d..06ea6d9bc576 100644
--- a/arch/m32r/platforms/mappi/io.c
+++ b/arch/m32r/platforms/mappi/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/mappi/io.c
  *
diff --git a/arch/m32r/platforms/mappi/setup.c b/arch/m32r/platforms/mappi/setup.c
index 767d2f4d6ded..c8d642ec4bfb 100644
--- a/arch/m32r/platforms/mappi/setup.c
+++ b/arch/m32r/platforms/mappi/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/mappi/setup.c
  *
diff --git a/arch/m32r/platforms/mappi2/io.c b/arch/m32r/platforms/mappi2/io.c
index da58960b3f8a..18a408ff3fd1 100644
--- a/arch/m32r/platforms/mappi2/io.c
+++ b/arch/m32r/platforms/mappi2/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/mappi2/io.c
  *
diff --git a/arch/m32r/platforms/mappi2/setup.c b/arch/m32r/platforms/mappi2/setup.c
index 76d665abf51e..7253258a7880 100644
--- a/arch/m32r/platforms/mappi2/setup.c
+++ b/arch/m32r/platforms/mappi2/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/mappi2/setup.c
  *
diff --git a/arch/m32r/platforms/mappi3/io.c b/arch/m32r/platforms/mappi3/io.c
index 1bc3f90fdc53..e7edcab72a6b 100644
--- a/arch/m32r/platforms/mappi3/io.c
+++ b/arch/m32r/platforms/mappi3/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/mappi3/io.c
  *
diff --git a/arch/m32r/platforms/mappi3/setup.c b/arch/m32r/platforms/mappi3/setup.c
index a3646d4b05bd..87d2000081f7 100644
--- a/arch/m32r/platforms/mappi3/setup.c
+++ b/arch/m32r/platforms/mappi3/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/mappi3/setup.c
  *
diff --git a/arch/m32r/platforms/oaks32r/io.c b/arch/m32r/platforms/oaks32r/io.c
index 364a3b2e8907..3ce1f3ac0d16 100644
--- a/arch/m32r/platforms/oaks32r/io.c
+++ b/arch/m32r/platforms/oaks32r/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/oaks32r/io.c
  *
diff --git a/arch/m32r/platforms/oaks32r/setup.c b/arch/m32r/platforms/oaks32r/setup.c
index f8373c069524..8188c0baa064 100644
--- a/arch/m32r/platforms/oaks32r/setup.c
+++ b/arch/m32r/platforms/oaks32r/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/oaks32r/setup.c
  *
diff --git a/arch/m32r/platforms/usrv/setup.c b/arch/m32r/platforms/usrv/setup.c
index dcde0ec777f6..ba828b16c6e3 100644
--- a/arch/m32r/platforms/usrv/setup.c
+++ b/arch/m32r/platforms/usrv/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m32r/platforms/usrv/setup.c
  *
diff --git a/arch/m68k/68000/Makefile b/arch/m68k/68000/Makefile
index 1eab70c7194b..4f7d4b45a46f 100644
--- a/arch/m68k/68000/Makefile
+++ b/arch/m68k/68000/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ##################################################
 #
 # Makefile for 68000 core based cpus
diff --git a/arch/m68k/68000/bootlogo-vz.h b/arch/m68k/68000/bootlogo-vz.h
index 6ff09beba1ba..1afa33955368 100644
--- a/arch/m68k/68000/bootlogo-vz.h
+++ b/arch/m68k/68000/bootlogo-vz.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/compiler.h>
 
 #define splash_width 640
diff --git a/arch/m68k/68000/bootlogo.h b/arch/m68k/68000/bootlogo.h
index c466db3ca3a8..b4d7e6c26cad 100644
--- a/arch/m68k/68000/bootlogo.h
+++ b/arch/m68k/68000/bootlogo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/compiler.h>
 
 #define bootlogo_width 160
diff --git a/arch/m68k/68000/head.S b/arch/m68k/68000/head.S
index 536ef9616dad..140220662e33 100644
--- a/arch/m68k/68000/head.S
+++ b/arch/m68k/68000/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * head.S - Common startup code for 68000 core based CPU's
  *
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 353d90487c2b..785612b576f7 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config M68K
 	bool
 	default y
diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus
index 675b087198f6..d5e66ec136db 100644
--- a/arch/m68k/Kconfig.bus
+++ b/arch/m68k/Kconfig.bus
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MMU
 
 comment "Bus Support"
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index d2219f30b78f..21f00349af52 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 comment "Processor Type"
 
 choice
@@ -283,7 +284,7 @@ config M548x
 
 config M5441x
 	bool "MCF5441x"
-	depends on !MMU
+	select MMU_COLDFIRE if MMU
 	select GENERIC_CLOCKEVENTS
 	select HAVE_CACHE_CB
 	help
diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug
index 50a67d08aec4..04690b179a6e 100644
--- a/arch/m68k/Kconfig.debug
+++ b/arch/m68k/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/m68k/Kconfig.devices b/arch/m68k/Kconfig.devices
index 42b6fcfc30ef..3e9b0b826f8a 100644
--- a/arch/m68k/Kconfig.devices
+++ b/arch/m68k/Kconfig.devices
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MMU
 
 config ARCH_MAY_HAVE_PC_FDC
diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine
index 9225b4ad9aeb..64a641467736 100644
--- a/arch/m68k/Kconfig.machine
+++ b/arch/m68k/Kconfig.machine
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 comment "Machine Types"
 
 if M68KCLASSIC
@@ -265,6 +266,12 @@ config AMCORE
 	help
 	  Support for the Sysam AMCORE open-hardware generic board.
 
+config STMARK2
+        bool "Sysam stmark2 board support"
+        depends on M5441x
+        help
+          Support for the Sysam stmark2 open-hardware generic board.
+
 config FIREBEE
 	bool "FireBee board support"
 	depends on M547x
diff --git a/arch/m68k/amiga/amisound.c b/arch/m68k/amiga/amisound.c
index 90a60d758f8b..a23f48181fd6 100644
--- a/arch/m68k/amiga/amisound.c
+++ b/arch/m68k/amiga/amisound.c
@@ -66,7 +66,7 @@ void __init amiga_init_sound(void)
 }
 
 static void nosound( unsigned long ignored );
-static DEFINE_TIMER(sound_timer, nosound, 0, 0);
+static DEFINE_TIMER(sound_timer, nosound);
 
 void amiga_mksound( unsigned int hz, unsigned int ticks )
 {
diff --git a/arch/m68k/amiga/chipram.c b/arch/m68k/amiga/chipram.c
index ba03cec3f711..a537953bc10c 100644
--- a/arch/m68k/amiga/chipram.c
+++ b/arch/m68k/amiga/chipram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 **  linux/amiga/chipram.c
 **
diff --git a/arch/m68k/apollo/config.c b/arch/m68k/apollo/config.c
index 432bc8bacfc2..0d27706f14d4 100644
--- a/arch/m68k/apollo/config.c
+++ b/arch/m68k/apollo/config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/kernel.h>
diff --git a/arch/m68k/apollo/dn_ints.c b/arch/m68k/apollo/dn_ints.c
index 17be1e7e2df2..02cff7efc834 100644
--- a/arch/m68k/apollo/dn_ints.c
+++ b/arch/m68k/apollo/dn_ints.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 
diff --git a/arch/m68k/bvme6000/rtc.c b/arch/m68k/bvme6000/rtc.c
index e4f1faffe32b..b43eeef0982c 100644
--- a/arch/m68k/bvme6000/rtc.c
+++ b/arch/m68k/bvme6000/rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Real Time Clock interface for Linux on the BVME6000
  *
diff --git a/arch/m68k/coldfire/Makefile b/arch/m68k/coldfire/Makefile
index 4aa2c57afc35..573eabca1a3a 100644
--- a/arch/m68k/coldfire/Makefile
+++ b/arch/m68k/coldfire/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the m68knommu kernel.
 #
@@ -34,7 +35,8 @@ obj-$(CONFIG_NETtel)	+= nettel.o
 obj-$(CONFIG_CLEOPATRA)	+= nettel.o
 obj-$(CONFIG_FIREBEE)	+= firebee.o
 obj-$(CONFIG_MCF8390)	+= mcf8390.o
-obj-$(CONFIG_AMCORE)    += amcore.o
+obj-$(CONFIG_AMCORE)	+= amcore.o
+obj-$(CONFIG_STMARK2)	+= stmark2.o
 
 obj-$(CONFIG_PCI)	+= pci.o
 
diff --git a/arch/m68k/coldfire/cache.c b/arch/m68k/coldfire/cache.c
index 71beeaf0c5c4..98ee89b87439 100644
--- a/arch/m68k/coldfire/cache.c
+++ b/arch/m68k/coldfire/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/clk.c b/arch/m68k/coldfire/clk.c
index 856069a3196d..849cd208e2ed 100644
--- a/arch/m68k/coldfire/clk.c
+++ b/arch/m68k/coldfire/clk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/dma.c b/arch/m68k/coldfire/dma.c
index df5ce20d181c..c3279f7467d7 100644
--- a/arch/m68k/coldfire/dma.c
+++ b/arch/m68k/coldfire/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/dma_timer.c b/arch/m68k/coldfire/dma_timer.c
index 8273eea57874..cbb289439606 100644
--- a/arch/m68k/coldfire/dma_timer.c
+++ b/arch/m68k/coldfire/dma_timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dma_timer.c -- Freescale ColdFire DMA Timer.
  *
diff --git a/arch/m68k/coldfire/firebee.c b/arch/m68k/coldfire/firebee.c
index 46d50534f981..3b9d4fc6f12e 100644
--- a/arch/m68k/coldfire/firebee.c
+++ b/arch/m68k/coldfire/firebee.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/head.S b/arch/m68k/coldfire/head.S
index bdb472c48401..c6d7fd28c602 100644
--- a/arch/m68k/coldfire/head.S
+++ b/arch/m68k/coldfire/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*****************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m5206.c b/arch/m68k/coldfire/m5206.c
index a3bcf0883f98..2f14ea95c391 100644
--- a/arch/m68k/coldfire/m5206.c
+++ b/arch/m68k/coldfire/m5206.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m520x.c b/arch/m68k/coldfire/m520x.c
index 5ba69217ce6c..b5b2a267dada 100644
--- a/arch/m68k/coldfire/m520x.c
+++ b/arch/m68k/coldfire/m520x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m523x.c b/arch/m68k/coldfire/m523x.c
index f7a0fcc5618c..ddf2496ed117 100644
--- a/arch/m68k/coldfire/m523x.c
+++ b/arch/m68k/coldfire/m523x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m5249.c b/arch/m68k/coldfire/m5249.c
index b16cf9b4580c..0590f8c421f1 100644
--- a/arch/m68k/coldfire/m5249.c
+++ b/arch/m68k/coldfire/m5249.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m525x.c b/arch/m68k/coldfire/m525x.c
index 110e2cd34e62..1772359c416c 100644
--- a/arch/m68k/coldfire/m525x.c
+++ b/arch/m68k/coldfire/m525x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m5272.c b/arch/m68k/coldfire/m5272.c
index 9abb1a441da0..ad1185c68df7 100644
--- a/arch/m68k/coldfire/m5272.c
+++ b/arch/m68k/coldfire/m5272.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m527x.c b/arch/m68k/coldfire/m527x.c
index b10b436b5a31..cad462df6861 100644
--- a/arch/m68k/coldfire/m527x.c
+++ b/arch/m68k/coldfire/m527x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m528x.c b/arch/m68k/coldfire/m528x.c
index ea76998d5ab9..7ad3193887e8 100644
--- a/arch/m68k/coldfire/m528x.c
+++ b/arch/m68k/coldfire/m528x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m5307.c b/arch/m68k/coldfire/m5307.c
index cc5e8a50a423..64b4b1fd34ff 100644
--- a/arch/m68k/coldfire/m5307.c
+++ b/arch/m68k/coldfire/m5307.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m5407.c b/arch/m68k/coldfire/m5407.c
index 38863ddbeab0..0400d76115a1 100644
--- a/arch/m68k/coldfire/m5407.c
+++ b/arch/m68k/coldfire/m5407.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/m5441x.c b/arch/m68k/coldfire/m5441x.c
index 04fd7fde9fb3..55392af845fb 100644
--- a/arch/m68k/coldfire/m5441x.c
+++ b/arch/m68k/coldfire/m5441x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	m5441x.c -- support for Coldfire m5441x processors
  *
@@ -26,7 +27,7 @@ DEFINE_CLK(0, "intc.0", 18, MCF_CLK);
 DEFINE_CLK(0, "intc.1", 19, MCF_CLK);
 DEFINE_CLK(0, "intc.2", 20, MCF_CLK);
 DEFINE_CLK(0, "imx1-i2c.0", 22, MCF_CLK);
-DEFINE_CLK(0, "mcfdspi.0", 23, MCF_CLK);
+DEFINE_CLK(0, "fsl-dspi.0", 23, MCF_CLK);
 DEFINE_CLK(0, "mcfuart.0", 24, MCF_BUSCLK);
 DEFINE_CLK(0, "mcfuart.1", 25, MCF_BUSCLK);
 DEFINE_CLK(0, "mcfuart.2", 26, MCF_BUSCLK);
@@ -139,6 +140,7 @@ static struct clk * const enable_clks[] __initconst = {
 	&__clk_0_18, /* intc0 */
 	&__clk_0_19, /* intc0 */
 	&__clk_0_20, /* intc0 */
+	&__clk_0_23, /* dspi.0 */
 	&__clk_0_24, /* uart0 */
 	&__clk_0_25, /* uart1 */
 	&__clk_0_26, /* uart2 */
diff --git a/arch/m68k/coldfire/m54xx.c b/arch/m68k/coldfire/m54xx.c
index c552851ec617..adad03ca6e11 100644
--- a/arch/m68k/coldfire/m54xx.c
+++ b/arch/m68k/coldfire/m54xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
@@ -95,10 +96,6 @@ static void mcf54xx_reset(void)
 
 void __init config_BSP(char *commandp, int size)
 {
-#ifdef CONFIG_MMU
-	cf_bootmem_alloc();
-	mmu_context_init();
-#endif
 	mach_reset = mcf54xx_reset;
 	mach_sched_init = hw_timer_init;
 	m54xx_uarts_init();
diff --git a/arch/m68k/coldfire/nettel.c b/arch/m68k/coldfire/nettel.c
index ddc48ec1b800..ea8df6e7a6cc 100644
--- a/arch/m68k/coldfire/nettel.c
+++ b/arch/m68k/coldfire/nettel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/pit.c b/arch/m68k/coldfire/pit.c
index 6c0878018b44..eb6f16b0e2e6 100644
--- a/arch/m68k/coldfire/pit.c
+++ b/arch/m68k/coldfire/pit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/sltimers.c b/arch/m68k/coldfire/sltimers.c
index 3292c0d68b18..1b11e7bacab3 100644
--- a/arch/m68k/coldfire/sltimers.c
+++ b/arch/m68k/coldfire/sltimers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/stmark2.c b/arch/m68k/coldfire/stmark2.c
new file mode 100644
index 000000000000..a8d2b3d172f9
--- /dev/null
+++ b/arch/m68k/coldfire/stmark2.c
@@ -0,0 +1,119 @@
+/*
+ * stmark2.c -- Support for Sysam AMCORE open board
+ *
+ * (C) Copyright 2017, Angelo Dureghello <angelo@sysam.it>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/mtd/partitions.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi-fsl-dspi.h>
+#include <linux/spi/flash.h>
+#include <asm/mcfsim.h>
+
+/*
+ * Partitioning of parallel NOR flash (39VF3201B)
+ */
+static struct mtd_partition stmark2_partitions[] = {
+	{
+		.name = "U-Boot (1024K)",
+		.size = 0x100000,
+		.offset = 0x0
+	}, {
+		.name = "Kernel+initramfs (7168K)",
+		.size = 0x700000,
+		.offset = MTDPART_OFS_APPEND
+	}, {
+		.name = "Flash Free Space (8192K)",
+		.size = MTDPART_SIZ_FULL,
+		.offset = MTDPART_OFS_APPEND
+	}
+};
+
+static struct flash_platform_data stmark2_spi_flash_data = {
+	.name = "is25lp128",
+	.parts = stmark2_partitions,
+	.nr_parts = ARRAY_SIZE(stmark2_partitions),
+	.type = "is25lp128",
+};
+
+static struct spi_board_info stmark2_board_info[] __initdata = {
+	{
+		.modalias = "m25p80",
+		.max_speed_hz = 5000000,
+		.bus_num = 0,
+		.chip_select = 1,
+		.platform_data = &stmark2_spi_flash_data,
+		.mode = SPI_MODE_3,
+	}
+};
+
+/* SPI controller data, SPI (0) */
+static struct fsl_dspi_platform_data dspi_spi0_info = {
+	.cs_num = 4,
+	.bus_num = 0,
+	.sck_cs_delay = 100,
+	.cs_sck_delay = 100,
+};
+
+static struct resource dspi_spi0_resource[] = {
+	[0] = {
+		.start = MCFDSPI_BASE0,
+		.end   = MCFDSPI_BASE0 + 0xFF,
+		.flags = IORESOURCE_MEM,
+		},
+	[1] = {
+		.start = 12,
+		.end   = 13,
+		.flags = IORESOURCE_DMA,
+	},
+	[2] = {
+		.start = MCF_IRQ_DSPI0,
+		.end   = MCF_IRQ_DSPI0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+/* SPI controller, id = bus number */
+static struct platform_device dspi_spi0_device = {
+	.name = "fsl-dspi",
+	.id = 0,
+	.num_resources = ARRAY_SIZE(dspi_spi0_resource),
+	.resource = dspi_spi0_resource,
+	.dev = {
+		.platform_data = &dspi_spi0_info,
+	},
+};
+
+static struct platform_device *stmark2_devices[] __initdata = {
+	&dspi_spi0_device,
+};
+
+/*
+ * Note: proper pin-mux setup is mandatory for proper SPI functionality.
+ */
+static int __init init_stmark2(void)
+{
+	/* DSPI0, all pins as DSPI, and using CS1 */
+	__raw_writeb(0x80, MCFGPIO_PAR_DSPIOWL);
+	__raw_writeb(0xfc, MCFGPIO_PAR_DSPIOWH);
+
+	/* Board gpio setup */
+	__raw_writeb(0x00, MCFGPIO_PAR_BE);
+	__raw_writeb(0x00, MCFGPIO_PAR_FBCTL);
+	__raw_writeb(0x00, MCFGPIO_PAR_CS);
+	__raw_writeb(0x00, MCFGPIO_PAR_CANI2C);
+
+	platform_add_devices(stmark2_devices, ARRAY_SIZE(stmark2_devices));
+
+	spi_register_board_info(stmark2_board_info,
+				ARRAY_SIZE(stmark2_board_info));
+
+	return 0;
+}
+
+late_initcall(init_stmark2);
diff --git a/arch/m68k/coldfire/timers.c b/arch/m68k/coldfire/timers.c
index 2dc7a58204f6..227aa5d13709 100644
--- a/arch/m68k/coldfire/timers.c
+++ b/arch/m68k/coldfire/timers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/coldfire/vectors.c b/arch/m68k/coldfire/vectors.c
index 08923fe600e0..3bf0d69eec9e 100644
--- a/arch/m68k/coldfire/vectors.c
+++ b/arch/m68k/coldfire/vectors.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /***************************************************************************/
 
 /*
diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig
index 54191f6fc715..5b5fa9831b4d 100644
--- a/arch/m68k/configs/amiga_defconfig
+++ b/arch/m68k/configs/amiga_defconfig
@@ -123,6 +123,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -302,6 +303,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -400,6 +402,7 @@ CONFIG_ARIADNE=y
 # CONFIG_NET_VENDOR_CIRRUS is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
 # CONFIG_NET_VENDOR_HP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -451,6 +454,7 @@ CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PPS_CLIENT_PARPORT=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FB_CIRRUS=y
 CONFIG_FB_AMIGA=y
@@ -607,12 +611,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig
index fb4663904428..72a7764b74ed 100644
--- a/arch/m68k/configs/apollo_defconfig
+++ b/arch/m68k/configs/apollo_defconfig
@@ -121,6 +121,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -300,6 +301,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -377,6 +379,7 @@ CONFIG_VETH=m
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -419,6 +422,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -566,12 +570,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig
index 4ab393e86e52..884b43a2f0d9 100644
--- a/arch/m68k/configs/atari_defconfig
+++ b/arch/m68k/configs/atari_defconfig
@@ -121,6 +121,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -300,6 +301,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -387,6 +389,7 @@ CONFIG_ATARILANCE=y
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -434,6 +437,7 @@ CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PPS_CLIENT_PARPORT=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FB_ATARI=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -588,12 +592,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig
index 1dd8d697545b..fcfa60d31499 100644
--- a/arch/m68k/configs/bvme6000_defconfig
+++ b/arch/m68k/configs/bvme6000_defconfig
@@ -119,6 +119,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -298,6 +299,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -376,6 +378,7 @@ CONFIG_VETH=m
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 CONFIG_BVME6000_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -417,6 +420,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_HID=m
 CONFIG_HIDRAW=y
 CONFIG_UHID=m
@@ -558,12 +562,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig
index 02b39f50076e..9d597bbbbbfe 100644
--- a/arch/m68k/configs/hp300_defconfig
+++ b/arch/m68k/configs/hp300_defconfig
@@ -121,6 +121,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -300,6 +301,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -378,6 +380,7 @@ CONFIG_HPLANCE=y
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -422,6 +425,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -568,12 +572,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig
index 044dcb2bf8fb..45da20d1286c 100644
--- a/arch/m68k/configs/mac_defconfig
+++ b/arch/m68k/configs/mac_defconfig
@@ -120,6 +120,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -302,6 +303,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -395,6 +397,7 @@ CONFIG_MACMACE=y
 # CONFIG_NET_VENDOR_BROADCOM is not set
 CONFIG_MAC89x0=y
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -444,6 +447,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FB_VALKYRIE=y
 CONFIG_FB_MAC=y
@@ -590,12 +594,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig
index 3ad04682077a..fda880c10861 100644
--- a/arch/m68k/configs/multi_defconfig
+++ b/arch/m68k/configs/multi_defconfig
@@ -130,6 +130,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -312,6 +313,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -436,6 +438,7 @@ CONFIG_MACMACE=y
 CONFIG_MAC89x0=y
 # CONFIG_NET_VENDOR_EZCHIP is not set
 # CONFIG_NET_VENDOR_HP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 CONFIG_BVME6000_NET=y
 CONFIG_MVME16x_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
@@ -501,6 +504,7 @@ CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PPS_CLIENT_PARPORT=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FB_CIRRUS=y
 CONFIG_FB_AMIGA=y
@@ -670,12 +674,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig
index dc2dd61948cd..7d5e4863efec 100644
--- a/arch/m68k/configs/mvme147_defconfig
+++ b/arch/m68k/configs/mvme147_defconfig
@@ -118,6 +118,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -297,6 +298,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -376,6 +378,7 @@ CONFIG_MVME147_NET=y
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -417,6 +420,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_HID=m
 CONFIG_HIDRAW=y
 CONFIG_UHID=m
@@ -558,12 +562,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig
index 54e7b523fc3d..7763b71a9c49 100644
--- a/arch/m68k/configs/mvme16x_defconfig
+++ b/arch/m68k/configs/mvme16x_defconfig
@@ -119,6 +119,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -298,6 +299,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -376,6 +378,7 @@ CONFIG_VETH=m
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 CONFIG_MVME16x_NET=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -417,6 +420,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_HID=m
 CONFIG_HIDRAW=y
 CONFIG_UHID=m
@@ -558,12 +562,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig
index d63d8a15f6db..17eaebfa3e19 100644
--- a/arch/m68k/configs/q40_defconfig
+++ b/arch/m68k/configs/q40_defconfig
@@ -119,6 +119,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -298,6 +299,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -386,6 +388,7 @@ CONFIG_VETH=m
 # CONFIG_NET_VENDOR_CIRRUS is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
 # CONFIG_NET_VENDOR_HP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -434,6 +437,7 @@ CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PPS_CLIENT_PARPORT=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -581,12 +585,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/stmark2_defconfig b/arch/m68k/configs/stmark2_defconfig
new file mode 100644
index 000000000000..55e55dbc2fb6
--- /dev/null
+++ b/arch/m68k/configs/stmark2_defconfig
@@ -0,0 +1,92 @@
+CONFIG_LOCALVERSION="stmark2-001"
+CONFIG_DEFAULT_HOSTNAME="stmark2"
+CONFIG_SYSVIPC=y
+# CONFIG_FHANDLE is not set
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="../uClinux-dist/romfs"
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_AIO is not set
+# CONFIG_ADVISE_SYSCALLS is not set
+# CONFIG_MEMBARRIER is not set
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_BLK_CMDLINE_PARSER=y
+# CONFIG_MMU is not set
+CONFIG_M5441x=y
+CONFIG_CLOCK_FREQ=240000000
+CONFIG_STMARK2=y
+CONFIG_RAMBASE=0x40000000
+CONFIG_RAMSIZE=0x8000000
+CONFIG_VECTORBASE=0x40000000
+CONFIG_KERNELBASE=0x40001000
+CONFIG_BINFMT_FLAT=y
+CONFIG_BINFMT_MISC=y
+# CONFIG_UEVENT_HELPER is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_MTD=y
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+CONFIG_MTD_CFI_LE_BYTE_SWAP=y
+CONFIG_MTD_CFI_GEOMETRY=y
+# CONFIG_MTD_CFI_I2 is not set
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_CFI_STAA=y
+CONFIG_MTD_ROM=y
+CONFIG_MTD_COMPLEX_MAPPINGS=y
+CONFIG_MTD_PLATRAM=y
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_SPI_NOR=y
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_UNIX98_PTYS is not set
+# CONFIG_DEVMEM is not set
+CONFIG_SERIAL_MCF=y
+CONFIG_SERIAL_MCF_BAUDRATE=115200
+CONFIG_SERIAL_MCF_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_SPI=y
+CONFIG_SPI_DEBUG=y
+CONFIG_SPI_FSL_DSPI=y
+CONFIG_DEBUG_GPIO=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+# CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_FILE_LOCKING is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+CONFIG_FSCACHE=y
+# CONFIG_PROC_SYSCTL is not set
+CONFIG_PRINTK_TIME=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_SECTION_MISMATCH_WARN_ONLY is not set
+CONFIG_SLUB_DEBUG_ON=y
+CONFIG_PANIC_ON_OOPS=y
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_BOOTPARAM=y
+CONFIG_BOOTPARAM_STRING="console=ttyS0,115200 root=/dev/ram0 rw rootfstype=ramfs rdinit=/bin/init devtmpfs.mount=1"
+CONFIG_CRYPTO=y
+# CONFIG_CRYPTO_ECHAINIV is not set
+CONFIG_CRYPTO_ANSI_CPRNG=y
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC16=y
diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig
index d0924c22f52a..d1cb7a04ae1d 100644
--- a/arch/m68k/configs/sun3_defconfig
+++ b/arch/m68k/configs/sun3_defconfig
@@ -116,6 +116,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -295,6 +296,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -373,6 +375,7 @@ CONFIG_SUN3LANCE=y
 # CONFIG_NET_VENDOR_ARC is not set
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 CONFIG_SUN3_82586=y
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -416,6 +419,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -559,12 +563,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig
index 3001ee1e5dc5..ea3a331c62d5 100644
--- a/arch/m68k/configs/sun3x_defconfig
+++ b/arch/m68k/configs/sun3x_defconfig
@@ -116,6 +116,7 @@ CONFIG_NFT_HASH=m
 CONFIG_NFT_FIB_INET=m
 CONFIG_NFT_DUP_NETDEV=m
 CONFIG_NFT_FWD_NETDEV=m
+CONFIG_NFT_FIB_NETDEV=m
 CONFIG_NETFILTER_XT_SET=m
 CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
@@ -295,6 +296,7 @@ CONFIG_MPLS=y
 CONFIG_NET_MPLS_GSO=m
 CONFIG_MPLS_ROUTING=m
 CONFIG_MPLS_IPTUNNEL=m
+CONFIG_NET_NSH=m
 CONFIG_NET_L3_MASTER_DEV=y
 CONFIG_AF_KCM=m
 # CONFIG_WIRELESS is not set
@@ -374,6 +376,7 @@ CONFIG_SUN3LANCE=y
 # CONFIG_NET_CADENCE is not set
 # CONFIG_NET_VENDOR_BROADCOM is not set
 # CONFIG_NET_VENDOR_EZCHIP is not set
+# CONFIG_NET_VENDOR_HUAWEI is not set
 # CONFIG_NET_VENDOR_INTEL is not set
 # CONFIG_NET_VENDOR_MARVELL is not set
 # CONFIG_NET_VENDOR_MICREL is not set
@@ -416,6 +419,7 @@ CONFIG_NTP_PPS=y
 CONFIG_PPS_CLIENT_LDISC=m
 CONFIG_PTP_1588_CLOCK=m
 # CONFIG_HWMON is not set
+# CONFIG_RC_CORE is not set
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
@@ -560,12 +564,10 @@ CONFIG_CRYPTO_USER=m
 CONFIG_CRYPTO_CRYPTD=m
 CONFIG_CRYPTO_MCRYPTD=m
 CONFIG_CRYPTO_TEST=m
-CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_CHACHA20POLY1305=m
 CONFIG_CRYPTO_LRW=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_KEYWRAP=m
-CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
diff --git a/arch/m68k/fpsp040/Makefile b/arch/m68k/fpsp040/Makefile
index 9506d883ace5..aab04d372ae7 100644
--- a/arch/m68k/fpsp040/Makefile
+++ b/arch/m68k/fpsp040/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Linux arch/m68k/fpsp040 source directory
 #
diff --git a/arch/m68k/hp300/config.c b/arch/m68k/hp300/config.c
index 7cfab158fb61..a19bcd23f80b 100644
--- a/arch/m68k/hp300/config.c
+++ b/arch/m68k/hp300/config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/hp300/config.c
  *
diff --git a/arch/m68k/hp300/time.c b/arch/m68k/hp300/time.c
index 749543b425a4..289d928a46cb 100644
--- a/arch/m68k/hp300/time.c
+++ b/arch/m68k/hp300/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/hp300/time.c
  *
diff --git a/arch/m68k/include/asm/MC68328.h b/arch/m68k/include/asm/MC68328.h
index b61230e74e63..6e14e92260fd 100644
--- a/arch/m68k/include/asm/MC68328.h
+++ b/arch/m68k/include/asm/MC68328.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* include/asm-m68knommu/MC68328.h: '328 control registers
  *
diff --git a/arch/m68k/include/asm/MC68EZ328.h b/arch/m68k/include/asm/MC68EZ328.h
index 703331ece328..c50b9f6a8f66 100644
--- a/arch/m68k/include/asm/MC68EZ328.h
+++ b/arch/m68k/include/asm/MC68EZ328.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* include/asm-m68knommu/MC68EZ328.h: 'EZ328 control registers
  *
diff --git a/arch/m68k/include/asm/MC68VZ328.h b/arch/m68k/include/asm/MC68VZ328.h
index fbaed7ddfb41..dc894cfcff68 100644
--- a/arch/m68k/include/asm/MC68VZ328.h
+++ b/arch/m68k/include/asm/MC68VZ328.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* include/asm-m68knommu/MC68VZ328.h: 'VZ328 control registers
  *
diff --git a/arch/m68k/include/asm/adb_iop.h b/arch/m68k/include/asm/adb_iop.h
index 8a48e56f2d62..195d7fb1268c 100644
--- a/arch/m68k/include/asm/adb_iop.h
+++ b/arch/m68k/include/asm/adb_iop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ADB through the IOP
  * Written by Joshua M. Thompson
diff --git a/arch/m68k/include/asm/apollohw.h b/arch/m68k/include/asm/apollohw.h
index 87fc899d32ee..52066f3b8658 100644
--- a/arch/m68k/include/asm/apollohw.h
+++ b/arch/m68k/include/asm/apollohw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* apollohw.h : some structures to access apollo HW */
 
 #ifndef _ASMm68k_APOLLOHW_H_
diff --git a/arch/m68k/include/asm/atafd.h b/arch/m68k/include/asm/atafd.h
index 8456889ee7da..ad7014cad633 100644
--- a/arch/m68k/include/asm/atafd.h
+++ b/arch/m68k/include/asm/atafd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_FD_H
 #define _ASM_M68K_FD_H
 
diff --git a/arch/m68k/include/asm/atafdreg.h b/arch/m68k/include/asm/atafdreg.h
index bbf80949fd9f..c31b4919ed2d 100644
--- a/arch/m68k/include/asm/atafdreg.h
+++ b/arch/m68k/include/asm/atafdreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FDREG_H
 #define _LINUX_FDREG_H
 
diff --git a/arch/m68k/include/asm/atari_joystick.h b/arch/m68k/include/asm/atari_joystick.h
index 93be7da9f2c7..c4a6a06e68c8 100644
--- a/arch/m68k/include/asm/atari_joystick.h
+++ b/arch/m68k/include/asm/atari_joystick.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ATARI_JOYSTICK_H
 #define _LINUX_ATARI_JOYSTICK_H
 
diff --git a/arch/m68k/include/asm/atari_stdma.h b/arch/m68k/include/asm/atari_stdma.h
index d24e34d870dc..70de9b12470a 100644
--- a/arch/m68k/include/asm/atari_stdma.h
+++ b/arch/m68k/include/asm/atari_stdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _atari_stdma_h
 #define _atari_stdma_h
diff --git a/arch/m68k/include/asm/atari_stram.h b/arch/m68k/include/asm/atari_stram.h
index 4e771c22d6a9..1fc19102aac9 100644
--- a/arch/m68k/include/asm/atari_stram.h
+++ b/arch/m68k/include/asm/atari_stram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_ATARI_STRAM_H
 #define _M68K_ATARI_STRAM_H
 
diff --git a/arch/m68k/include/asm/atomic.h b/arch/m68k/include/asm/atomic.h
index cf4c3a7b1a45..e993e2860ee1 100644
--- a/arch/m68k/include/asm/atomic.h
+++ b/arch/m68k/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_M68K_ATOMIC__
 #define __ARCH_M68K_ATOMIC__
 
diff --git a/arch/m68k/include/asm/bootstd.h b/arch/m68k/include/asm/bootstd.h
index e518f5a575b7..1dab93ddb090 100644
--- a/arch/m68k/include/asm/bootstd.h
+++ b/arch/m68k/include/asm/bootstd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* bootstd.h:  Bootloader system call interface
  *
  * (c) 1999, Rt-Control, Inc.
diff --git a/arch/m68k/include/asm/bug.h b/arch/m68k/include/asm/bug.h
index 5bc8d91d68d4..b7e2bf1ba4a6 100644
--- a/arch/m68k/include/asm/bug.h
+++ b/arch/m68k/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_BUG_H
 #define _M68K_BUG_H
 
diff --git a/arch/m68k/include/asm/bugs.h b/arch/m68k/include/asm/bugs.h
index d06207b9ba5a..745530651e0b 100644
--- a/arch/m68k/include/asm/bugs.h
+++ b/arch/m68k/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/asm-m68k/bugs.h
  *
diff --git a/arch/m68k/include/asm/bvme6000hw.h b/arch/m68k/include/asm/bvme6000hw.h
index f40d2f8510ee..7b1309bb2c07 100644
--- a/arch/m68k/include/asm/bvme6000hw.h
+++ b/arch/m68k/include/asm/bvme6000hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_BVME6000HW_H_
 #define _M68K_BVME6000HW_H_
 
diff --git a/arch/m68k/include/asm/cache.h b/arch/m68k/include/asm/cache.h
index 0395c51e46a6..9c06458f3bc9 100644
--- a/arch/m68k/include/asm/cache.h
+++ b/arch/m68k/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-m68k/cache.h
  */
diff --git a/arch/m68k/include/asm/cacheflush.h b/arch/m68k/include/asm/cacheflush.h
index 4fc738209bd1..29b8e638b912 100644
--- a/arch/m68k/include/asm/cacheflush.h
+++ b/arch/m68k/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __uClinux__
 #include <asm/cacheflush_no.h>
 #else
diff --git a/arch/m68k/include/asm/cacheflush_mm.h b/arch/m68k/include/asm/cacheflush_mm.h
index fa2c3d681d84..1e2544ecaf88 100644
--- a/arch/m68k/include/asm/cacheflush_mm.h
+++ b/arch/m68k/include/asm/cacheflush_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_CACHEFLUSH_H
 #define _M68K_CACHEFLUSH_H
 
diff --git a/arch/m68k/include/asm/cacheflush_no.h b/arch/m68k/include/asm/cacheflush_no.h
index d2b3935ae147..11e9a9dcbfb2 100644
--- a/arch/m68k/include/asm/cacheflush_no.h
+++ b/arch/m68k/include/asm/cacheflush_no.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68KNOMMU_CACHEFLUSH_H
 #define _M68KNOMMU_CACHEFLUSH_H
 
diff --git a/arch/m68k/include/asm/checksum.h b/arch/m68k/include/asm/checksum.h
index 75e91f03b178..f9b94e4b94f9 100644
--- a/arch/m68k/include/asm/checksum.h
+++ b/arch/m68k/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_CHECKSUM_H
 #define _M68K_CHECKSUM_H
 
diff --git a/arch/m68k/include/asm/cmpxchg.h b/arch/m68k/include/asm/cmpxchg.h
index 83b1df80f0ac..38e1d7acc44d 100644
--- a/arch/m68k/include/asm/cmpxchg.h
+++ b/arch/m68k/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_M68K_CMPXCHG__
 #define __ARCH_M68K_CMPXCHG__
 
diff --git a/arch/m68k/include/asm/coldfire.h b/arch/m68k/include/asm/coldfire.h
index 50aa4dac9ca2..d9cb26fb3e65 100644
--- a/arch/m68k/include/asm/coldfire.h
+++ b/arch/m68k/include/asm/coldfire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/contregs.h b/arch/m68k/include/asm/contregs.h
index d1ea750bddfe..f82ca0ab38bc 100644
--- a/arch/m68k/include/asm/contregs.h
+++ b/arch/m68k/include/asm/contregs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_CONTREGS_H
 #define _M68K_CONTREGS_H
 
diff --git a/arch/m68k/include/asm/current.h b/arch/m68k/include/asm/current.h
index 91fcc5358cfe..6390ef2f7f86 100644
--- a/arch/m68k/include/asm/current.h
+++ b/arch/m68k/include/asm/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_CURRENT_H
 #define _M68K_CURRENT_H
 
diff --git a/arch/m68k/include/asm/delay.h b/arch/m68k/include/asm/delay.h
index c598d847d56b..7f474121e4ca 100644
--- a/arch/m68k/include/asm/delay.h
+++ b/arch/m68k/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_DELAY_H
 #define _M68K_DELAY_H
 
diff --git a/arch/m68k/include/asm/div64.h b/arch/m68k/include/asm/div64.h
index ef881cfbbca9..365f39f5e256 100644
--- a/arch/m68k/include/asm/div64.h
+++ b/arch/m68k/include/asm/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_DIV64_H
 #define _M68K_DIV64_H
 
diff --git a/arch/m68k/include/asm/dma-mapping.h b/arch/m68k/include/asm/dma-mapping.h
index 9210e470771b..3e1a3ffba291 100644
--- a/arch/m68k/include/asm/dma-mapping.h
+++ b/arch/m68k/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_DMA_MAPPING_H
 #define _M68K_DMA_MAPPING_H
 
diff --git a/arch/m68k/include/asm/dma.h b/arch/m68k/include/asm/dma.h
index 208b4daa14b3..b0978a23bad1 100644
--- a/arch/m68k/include/asm/dma.h
+++ b/arch/m68k/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_DMA_H
 #define _M68K_DMA_H 1
 
diff --git a/arch/m68k/include/asm/dvma.h b/arch/m68k/include/asm/dvma.h
index 890bbf7e7758..f609ec1de36d 100644
--- a/arch/m68k/include/asm/dvma.h
+++ b/arch/m68k/include/asm/dvma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-m68k/dma.h
  *
diff --git a/arch/m68k/include/asm/elf.h b/arch/m68k/include/asm/elf.h
index b1c26de438be..3d387ceaea3f 100644
--- a/arch/m68k/include/asm/elf.h
+++ b/arch/m68k/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMm68k_ELF_H
 #define __ASMm68k_ELF_H
 
diff --git a/arch/m68k/include/asm/entry.h b/arch/m68k/include/asm/entry.h
index d7de0f1a8957..9b52b060c76a 100644
--- a/arch/m68k/include/asm/entry.h
+++ b/arch/m68k/include/asm/entry.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M68K_ENTRY_H
 #define __M68K_ENTRY_H
 
diff --git a/arch/m68k/include/asm/fb.h b/arch/m68k/include/asm/fb.h
index be4e4c6797e8..b86c6e2e26dd 100644
--- a/arch/m68k/include/asm/fb.h
+++ b/arch/m68k/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/m68k/include/asm/fbio.h b/arch/m68k/include/asm/fbio.h
index 0a21da87f7d6..590b923c470d 100644
--- a/arch/m68k/include/asm/fbio.h
+++ b/arch/m68k/include/asm/fbio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_FBIO_H
 #define __LINUX_FBIO_H
 
diff --git a/arch/m68k/include/asm/flat.h b/arch/m68k/include/asm/flat.h
index b2a41f5b3890..4f1d1e373420 100644
--- a/arch/m68k/include/asm/flat.h
+++ b/arch/m68k/include/asm/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * flat.h -- uClinux flat-format executables
  */
diff --git a/arch/m68k/include/asm/fpu.h b/arch/m68k/include/asm/fpu.h
index 526db9da9e43..ab12be88d75f 100644
--- a/arch/m68k/include/asm/fpu.h
+++ b/arch/m68k/include/asm/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M68K_FPU_H
 #define __M68K_FPU_H
 
diff --git a/arch/m68k/include/asm/hardirq.h b/arch/m68k/include/asm/hardirq.h
index 6c618529d9b9..11793165445d 100644
--- a/arch/m68k/include/asm/hardirq.h
+++ b/arch/m68k/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M68K_HARDIRQ_H
 #define __M68K_HARDIRQ_H
 
diff --git a/arch/m68k/include/asm/hash.h b/arch/m68k/include/asm/hash.h
index 6407af84a994..6d0d0c893f16 100644
--- a/arch/m68k/include/asm/hash.h
+++ b/arch/m68k/include/asm/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HASH_H
 #define _ASM_HASH_H
 
diff --git a/arch/m68k/include/asm/hp300hw.h b/arch/m68k/include/asm/hp300hw.h
index 64f5271dd7be..0909800beef4 100644
--- a/arch/m68k/include/asm/hp300hw.h
+++ b/arch/m68k/include/asm/hp300hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_HP300HW_H
 #define _M68K_HP300HW_H
 
diff --git a/arch/m68k/include/asm/hwtest.h b/arch/m68k/include/asm/hwtest.h
index 402c8a4401fe..f8d646205ba3 100644
--- a/arch/m68k/include/asm/hwtest.h
+++ b/arch/m68k/include/asm/hwtest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Routines to test for presence/absence of hardware registers:
  * see arch/m68k/mm/hwtest.c.
  *  -- PMM <pmaydell@chiark.greenend.org.uk> 05/1998
diff --git a/arch/m68k/include/asm/ide.h b/arch/m68k/include/asm/ide.h
index 492fee8a1ab2..05cc7dc00e0c 100644
--- a/arch/m68k/include/asm/ide.h
+++ b/arch/m68k/include/asm/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1994-1996  Linus Torvalds & authors
  */
diff --git a/arch/m68k/include/asm/idprom.h b/arch/m68k/include/asm/idprom.h
index 160616a89e05..13b099d011b5 100644
--- a/arch/m68k/include/asm/idprom.h
+++ b/arch/m68k/include/asm/idprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_IDPROM_H
 #define _M68K_IDPROM_H
 /*
diff --git a/arch/m68k/include/asm/intersil.h b/arch/m68k/include/asm/intersil.h
index f482902cac8a..b696348f9ab8 100644
--- a/arch/m68k/include/asm/intersil.h
+++ b/arch/m68k/include/asm/intersil.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SUN3_INTERSIL_H
 #define _SUN3_INTERSIL_H
 /* bits 0 and 1 */
diff --git a/arch/m68k/include/asm/io.h b/arch/m68k/include/asm/io.h
index bccd5a914eb6..756089cc019c 100644
--- a/arch/m68k/include/asm/io.h
+++ b/arch/m68k/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __uClinux__
 #include <asm/io_no.h>
 #else
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index c98ac81582ac..ed5333e87879 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-m68k/io.h
  *
diff --git a/arch/m68k/include/asm/io_no.h b/arch/m68k/include/asm/io_no.h
index ad7bd40e6742..86f45b403bcc 100644
--- a/arch/m68k/include/asm/io_no.h
+++ b/arch/m68k/include/asm/io_no.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68KNOMMU_IO_H
 #define _M68KNOMMU_IO_H
 
diff --git a/arch/m68k/include/asm/irq.h b/arch/m68k/include/asm/irq.h
index a644f4a53b94..91dd493791d7 100644
--- a/arch/m68k/include/asm/irq.h
+++ b/arch/m68k/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_IRQ_H_
 #define _M68K_IRQ_H_
 
diff --git a/arch/m68k/include/asm/irqflags.h b/arch/m68k/include/asm/irqflags.h
index b5941818346f..3799a2481095 100644
--- a/arch/m68k/include/asm/irqflags.h
+++ b/arch/m68k/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_IRQFLAGS_H
 #define _M68K_IRQFLAGS_H
 
diff --git a/arch/m68k/include/asm/kexec.h b/arch/m68k/include/asm/kexec.h
index 3df97abac147..f5a8b2defa4b 100644
--- a/arch/m68k/include/asm/kexec.h
+++ b/arch/m68k/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_KEXEC_H
 #define _ASM_M68K_KEXEC_H
 
diff --git a/arch/m68k/include/asm/linkage.h b/arch/m68k/include/asm/linkage.h
index 066e74f666ae..c8b84282764c 100644
--- a/arch/m68k/include/asm/linkage.h
+++ b/arch/m68k/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/m68k/include/asm/m5206sim.h b/arch/m68k/include/asm/m5206sim.h
index 0ddf3efbcae9..ceb42670aee5 100644
--- a/arch/m68k/include/asm/m5206sim.h
+++ b/arch/m68k/include/asm/m5206sim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m520xsim.h b/arch/m68k/include/asm/m520xsim.h
index 6d50cefa76c3..8b3da5624a73 100644
--- a/arch/m68k/include/asm/m520xsim.h
+++ b/arch/m68k/include/asm/m520xsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m523xsim.h b/arch/m68k/include/asm/m523xsim.h
index d43f6ab1edc9..a3082411abee 100644
--- a/arch/m68k/include/asm/m523xsim.h
+++ b/arch/m68k/include/asm/m523xsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m525xsim.h b/arch/m68k/include/asm/m525xsim.h
index 699f20c8a0fe..de01b701d95f 100644
--- a/arch/m68k/include/asm/m525xsim.h
+++ b/arch/m68k/include/asm/m525xsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m5272sim.h b/arch/m68k/include/asm/m5272sim.h
index 1fb01bb05d6c..135dd50f0f8f 100644
--- a/arch/m68k/include/asm/m5272sim.h
+++ b/arch/m68k/include/asm/m5272sim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m527xsim.h b/arch/m68k/include/asm/m527xsim.h
index 35f6fbc89b92..d92814bf9915 100644
--- a/arch/m68k/include/asm/m527xsim.h
+++ b/arch/m68k/include/asm/m527xsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m528xsim.h b/arch/m68k/include/asm/m528xsim.h
index 67f6182d10a4..7b60a57e9b70 100644
--- a/arch/m68k/include/asm/m528xsim.h
+++ b/arch/m68k/include/asm/m528xsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m52xxacr.h b/arch/m68k/include/asm/m52xxacr.h
index abc391a9ae8d..2cb29ed5266c 100644
--- a/arch/m68k/include/asm/m52xxacr.h
+++ b/arch/m68k/include/asm/m52xxacr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m5307sim.h b/arch/m68k/include/asm/m5307sim.h
index d2595e04eb1d..25059f20524b 100644
--- a/arch/m68k/include/asm/m5307sim.h
+++ b/arch/m68k/include/asm/m5307sim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m53xxacr.h b/arch/m68k/include/asm/m53xxacr.h
index 3177ce8331d6..9138a624c5c8 100644
--- a/arch/m68k/include/asm/m53xxacr.h
+++ b/arch/m68k/include/asm/m53xxacr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m53xxsim.h b/arch/m68k/include/asm/m53xxsim.h
index 53329ae4d3e3..22c1c92b9811 100644
--- a/arch/m68k/include/asm/m53xxsim.h
+++ b/arch/m68k/include/asm/m53xxsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m5407sim.h b/arch/m68k/include/asm/m5407sim.h
index ab40c16ba989..0c2720d8ede9 100644
--- a/arch/m68k/include/asm/m5407sim.h
+++ b/arch/m68k/include/asm/m5407sim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/m5441xsim.h b/arch/m68k/include/asm/m5441xsim.h
index 64f60be47066..c87556d5581c 100644
--- a/arch/m68k/include/asm/m5441xsim.h
+++ b/arch/m68k/include/asm/m5441xsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	m5441xsim.h -- Coldfire 5441x register definitions
  *
@@ -277,4 +278,10 @@
 #define MCFGPIO_IRQ_VECBASE	(MCFINT_VECBASE - MCFGPIO_IRQ_MIN)
 #define MCFGPIO_PIN_MAX		87
 
+/*
+ *  DSPI module.
+ */
+#define MCFDSPI_BASE0		0xfc05c000
+#define MCF_IRQ_DSPI0		(MCFINT0_VECBASE + MCFINT0_DSPI0)
+
 #endif /* m5441xsim_h */
diff --git a/arch/m68k/include/asm/m54xxacr.h b/arch/m68k/include/asm/m54xxacr.h
index c6ac05cda282..466df7b03c6b 100644
--- a/arch/m68k/include/asm/m54xxacr.h
+++ b/arch/m68k/include/asm/m54xxacr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Bit definitions for the MCF54xx ACR and CACR registers.
  */
diff --git a/arch/m68k/include/asm/m54xxgpt.h b/arch/m68k/include/asm/m54xxgpt.h
index 0b69cd1ed0ed..b1f912157be9 100644
--- a/arch/m68k/include/asm/m54xxgpt.h
+++ b/arch/m68k/include/asm/m54xxgpt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	m54xxgpt.h
  * Purpose:	Register and bit definitions for the MCF54XX
diff --git a/arch/m68k/include/asm/m54xxsim.h b/arch/m68k/include/asm/m54xxsim.h
index 7758d0a1a84d..2a3305f6fac6 100644
--- a/arch/m68k/include/asm/m54xxsim.h
+++ b/arch/m68k/include/asm/m54xxsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	m54xxsim.h -- ColdFire 547x/548x System Integration Unit support.
  */
diff --git a/arch/m68k/include/asm/mac_asc.h b/arch/m68k/include/asm/mac_asc.h
index fc2e5467b41e..075990251345 100644
--- a/arch/m68k/include/asm/mac_asc.h
+++ b/arch/m68k/include/asm/mac_asc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Apple Sound Chip
  */
diff --git a/arch/m68k/include/asm/mac_baboon.h b/arch/m68k/include/asm/mac_baboon.h
index a2d32f6589f9..08d9b8829a1a 100644
--- a/arch/m68k/include/asm/mac_baboon.h
+++ b/arch/m68k/include/asm/mac_baboon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for the "Baboon" custom IC on the PowerBook 190.
  */
diff --git a/arch/m68k/include/asm/mac_iop.h b/arch/m68k/include/asm/mac_iop.h
index 42566fd052bc..32f1c79c818f 100644
--- a/arch/m68k/include/asm/mac_iop.h
+++ b/arch/m68k/include/asm/mac_iop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * I/O Processor (IOP) defines and structures, mostly snagged from A/UX
  * header files.
@@ -158,6 +159,7 @@ extern void iop_complete_message(struct iop_msg *);
 extern void iop_upload_code(uint, __u8 *, uint, __u16);
 extern void iop_download_code(uint, __u8 *, uint, __u16);
 extern __u8 *iop_compare_code(uint, __u8 *, uint, __u16);
+extern void iop_ism_irq_poll(uint);
 
 extern void iop_register_interrupts(void);
 
diff --git a/arch/m68k/include/asm/mac_oss.h b/arch/m68k/include/asm/mac_oss.h
index 425fbff4f4d8..56ef986c0a9b 100644
--- a/arch/m68k/include/asm/mac_oss.h
+++ b/arch/m68k/include/asm/mac_oss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	OSS
  *
diff --git a/arch/m68k/include/asm/mac_psc.h b/arch/m68k/include/asm/mac_psc.h
index 923305117a69..86a5a5eab89e 100644
--- a/arch/m68k/include/asm/mac_psc.h
+++ b/arch/m68k/include/asm/mac_psc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Apple Peripheral System Controller (PSC)
  *
diff --git a/arch/m68k/include/asm/mac_via.h b/arch/m68k/include/asm/mac_via.h
index 53c632c85b03..de1470c4d829 100644
--- a/arch/m68k/include/asm/mac_via.h
+++ b/arch/m68k/include/asm/mac_via.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	6522 Versatile Interface Adapter (VIA)
  *
diff --git a/arch/m68k/include/asm/machdep.h b/arch/m68k/include/asm/machdep.h
index 953ca21da8ee..1605da48ebf2 100644
--- a/arch/m68k/include/asm/machdep.h
+++ b/arch/m68k/include/asm/machdep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_MACHDEP_H
 #define _M68K_MACHDEP_H
 
diff --git a/arch/m68k/include/asm/machines.h b/arch/m68k/include/asm/machines.h
index be667e84f01b..1332bad001fa 100644
--- a/arch/m68k/include/asm/machines.h
+++ b/arch/m68k/include/asm/machines.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * machines.h:  Defines for taking apart the machine type value in the
  *              idprom and determining the kind of machine we are on.
diff --git a/arch/m68k/include/asm/macintosh.h b/arch/m68k/include/asm/macintosh.h
index 5b81ab188aa5..f42c27400dbc 100644
--- a/arch/m68k/include/asm/macintosh.h
+++ b/arch/m68k/include/asm/macintosh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACINTOSH_H
 #define __ASM_MACINTOSH_H
 
diff --git a/arch/m68k/include/asm/math-emu.h b/arch/m68k/include/asm/math-emu.h
index b062696d5a0d..eefaa3a2b596 100644
--- a/arch/m68k/include/asm/math-emu.h
+++ b/arch/m68k/include/asm/math-emu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_SETUP_H
 #define _ASM_M68K_SETUP_H
 
diff --git a/arch/m68k/include/asm/mc146818rtc.h b/arch/m68k/include/asm/mc146818rtc.h
index 05b43bf5cdf3..6e9f319ce478 100644
--- a/arch/m68k/include/asm/mc146818rtc.h
+++ b/arch/m68k/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/m68k/include/asm/mcf8390.h b/arch/m68k/include/asm/mcf8390.h
index a72a20819a54..412360ef1dc1 100644
--- a/arch/m68k/include/asm/mcf8390.h
+++ b/arch/m68k/include/asm/mcf8390.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index fb95aed5f428..8b707c249026 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef M68K_MCF_PGALLOC_H
 #define M68K_MCF_PGALLOC_H
 
diff --git a/arch/m68k/include/asm/mcf_pgtable.h b/arch/m68k/include/asm/mcf_pgtable.h
index 2500ce04fcc4..5d5502cb2b2d 100644
--- a/arch/m68k/include/asm/mcf_pgtable.h
+++ b/arch/m68k/include/asm/mcf_pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MCF_PGTABLE_H
 #define _MCF_PGTABLE_H
 
diff --git a/arch/m68k/include/asm/mcfclk.h b/arch/m68k/include/asm/mcfclk.h
index ea4791e3a557..0aca504fae31 100644
--- a/arch/m68k/include/asm/mcfclk.h
+++ b/arch/m68k/include/asm/mcfclk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mcfclk.h -- coldfire specific clock structure
  */
diff --git a/arch/m68k/include/asm/mcfdma.h b/arch/m68k/include/asm/mcfdma.h
index 10bc7e391c14..6227317dd0f7 100644
--- a/arch/m68k/include/asm/mcfdma.h
+++ b/arch/m68k/include/asm/mcfdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcfintc.h b/arch/m68k/include/asm/mcfintc.h
index 4183320a3813..8bcfa33efa0f 100644
--- a/arch/m68k/include/asm/mcfintc.h
+++ b/arch/m68k/include/asm/mcfintc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcfmmu.h b/arch/m68k/include/asm/mcfmmu.h
index 10f9930ec49a..283352ab0d5d 100644
--- a/arch/m68k/include/asm/mcfmmu.h
+++ b/arch/m68k/include/asm/mcfmmu.h
@@ -106,6 +106,7 @@ static inline void mmu_write(u32 a, u32 v)
 }
 
 void cf_bootmem_alloc(void);
+void cf_mmu_context_init(void);
 int cf_tlb_miss(struct pt_regs *regs, int write, int dtlb, int extension_word);
 
 #endif
diff --git a/arch/m68k/include/asm/mcfpit.h b/arch/m68k/include/asm/mcfpit.h
index 9fd321ca0725..20c81e07df1b 100644
--- a/arch/m68k/include/asm/mcfpit.h
+++ b/arch/m68k/include/asm/mcfpit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcfsim.h b/arch/m68k/include/asm/mcfsim.h
index bc867de8a1e9..bef089510e55 100644
--- a/arch/m68k/include/asm/mcfsim.h
+++ b/arch/m68k/include/asm/mcfsim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcfslt.h b/arch/m68k/include/asm/mcfslt.h
index c2314b6f8caa..a539f0eccfcb 100644
--- a/arch/m68k/include/asm/mcfslt.h
+++ b/arch/m68k/include/asm/mcfslt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcftimer.h b/arch/m68k/include/asm/mcftimer.h
index 1150e42c3f19..4fe83db6497d 100644
--- a/arch/m68k/include/asm/mcftimer.h
+++ b/arch/m68k/include/asm/mcftimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcfuart.h b/arch/m68k/include/asm/mcfuart.h
index b40c20f66647..a1f35352f328 100644
--- a/arch/m68k/include/asm/mcfuart.h
+++ b/arch/m68k/include/asm/mcfuart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mcfwdebug.h b/arch/m68k/include/asm/mcfwdebug.h
index 27f70e45d700..bbe06cf036d1 100644
--- a/arch/m68k/include/asm/mcfwdebug.h
+++ b/arch/m68k/include/asm/mcfwdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/mmu.h b/arch/m68k/include/asm/mmu.h
index 8a11a63ee15a..5c15aacb1370 100644
--- a/arch/m68k/include/asm/mmu.h
+++ b/arch/m68k/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/m68k/include/asm/mmu_context.h b/arch/m68k/include/asm/mmu_context.h
index 4a6ae6dffa34..f5b1852b4663 100644
--- a/arch/m68k/include/asm/mmu_context.h
+++ b/arch/m68k/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M68K_MMU_CONTEXT_H
 #define __M68K_MMU_CONTEXT_H
 
@@ -91,7 +92,6 @@ static inline void activate_mm(struct mm_struct *active_mm,
 
 #define deactivate_mm(tsk, mm) do { } while (0)
 
-extern void mmu_context_init(void);
 #define prepare_arch_switch(next) load_ksp_mmu(next)
 
 static inline void load_ksp_mmu(struct task_struct *task)
diff --git a/arch/m68k/include/asm/mmzone.h b/arch/m68k/include/asm/mmzone.h
index e1f1ec7b7006..64573fe8e60d 100644
--- a/arch/m68k/include/asm/mmzone.h
+++ b/arch/m68k/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_MMZONE_H_
 #define _ASM_M68K_MMZONE_H_
 
diff --git a/arch/m68k/include/asm/module.h b/arch/m68k/include/asm/module.h
index 8b58fce843dd..36cb06cc03e6 100644
--- a/arch/m68k/include/asm/module.h
+++ b/arch/m68k/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_MODULE_H
 #define _ASM_M68K_MODULE_H
 
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index c895b987202c..7859a86319cf 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MOTOROLA_PGALLOC_H
 #define _MOTOROLA_PGALLOC_H
 
diff --git a/arch/m68k/include/asm/motorola_pgtable.h b/arch/m68k/include/asm/motorola_pgtable.h
index 0085aab80e5a..7f66a7bad7a5 100644
--- a/arch/m68k/include/asm/motorola_pgtable.h
+++ b/arch/m68k/include/asm/motorola_pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MOTOROLA_PGTABLE_H
 #define _MOTOROLA_PGTABLE_H
 
diff --git a/arch/m68k/include/asm/movs.h b/arch/m68k/include/asm/movs.h
index 67dbea36960f..390d7b47b8eb 100644
--- a/arch/m68k/include/asm/movs.h
+++ b/arch/m68k/include/asm/movs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef  __MOVS_H__
 #define __MOVS_H__
 
diff --git a/arch/m68k/include/asm/mvme147hw.h b/arch/m68k/include/asm/mvme147hw.h
index b81043108472..9c7ff67c5ffd 100644
--- a/arch/m68k/include/asm/mvme147hw.h
+++ b/arch/m68k/include/asm/mvme147hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MVME147HW_H_
 #define _MVME147HW_H_
 
diff --git a/arch/m68k/include/asm/mvme16xhw.h b/arch/m68k/include/asm/mvme16xhw.h
index 1eb89de631e5..cc7f5ae1220f 100644
--- a/arch/m68k/include/asm/mvme16xhw.h
+++ b/arch/m68k/include/asm/mvme16xhw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_MVME16xHW_H_
 #define _M68K_MVME16xHW_H_
 
diff --git a/arch/m68k/include/asm/nettel.h b/arch/m68k/include/asm/nettel.h
index 926375d538ec..45716ead7b9d 100644
--- a/arch/m68k/include/asm/nettel.h
+++ b/arch/m68k/include/asm/nettel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
diff --git a/arch/m68k/include/asm/nubus.h b/arch/m68k/include/asm/nubus.h
index d6be9976f1ae..d0d2039e434e 100644
--- a/arch/m68k/include/asm/nubus.h
+++ b/arch/m68k/include/asm/nubus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_NUBUS_H
 #define _ASM_M68K_NUBUS_H
 
diff --git a/arch/m68k/include/asm/openprom.h b/arch/m68k/include/asm/openprom.h
index d33cdadf78e1..dd22e649f5c5 100644
--- a/arch/m68k/include/asm/openprom.h
+++ b/arch/m68k/include/asm/openprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_OPENPROM_H
 #define __SPARC_OPENPROM_H
 
diff --git a/arch/m68k/include/asm/oplib.h b/arch/m68k/include/asm/oplib.h
index f082d03336bd..48cb4fd09f8d 100644
--- a/arch/m68k/include/asm/oplib.h
+++ b/arch/m68k/include/asm/oplib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * oplib.h:  Describes the interface and available routines in the
  *           Linux Prom library.
diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h
index d8a02c7e72d3..700d8195880c 100644
--- a/arch/m68k/include/asm/page.h
+++ b/arch/m68k/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_PAGE_H
 #define _M68K_PAGE_H
 
diff --git a/arch/m68k/include/asm/page_mm.h b/arch/m68k/include/asm/page_mm.h
index e7a1946455a8..e6b75992192b 100644
--- a/arch/m68k/include/asm/page_mm.h
+++ b/arch/m68k/include/asm/page_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_PAGE_MM_H
 #define _M68K_PAGE_MM_H
 
diff --git a/arch/m68k/include/asm/page_no.h b/arch/m68k/include/asm/page_no.h
index fa7f32d9836b..e644c4daf540 100644
--- a/arch/m68k/include/asm/page_no.h
+++ b/arch/m68k/include/asm/page_no.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_PAGE_NO_H
 #define _M68K_PAGE_NO_H
 
diff --git a/arch/m68k/include/asm/page_offset.h b/arch/m68k/include/asm/page_offset.h
index 82626a8f1d0a..11dc3cb8c35b 100644
--- a/arch/m68k/include/asm/page_offset.h
+++ b/arch/m68k/include/asm/page_offset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* This handles the memory map.. */
 
 #if defined(CONFIG_RAMBASE)
diff --git a/arch/m68k/include/asm/parport.h b/arch/m68k/include/asm/parport.h
index c85cece778e8..becfebd5c6b7 100644
--- a/arch/m68k/include/asm/parport.h
+++ b/arch/m68k/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * parport.h: platform-specific PC-style parport initialisation
  *
diff --git a/arch/m68k/include/asm/pci.h b/arch/m68k/include/asm/pci.h
index 3a3dbcf4051d..ef26fae8cf0b 100644
--- a/arch/m68k/include/asm/pci.h
+++ b/arch/m68k/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_PCI_H
 #define _ASM_M68K_PCI_H
 
diff --git a/arch/m68k/include/asm/pgalloc.h b/arch/m68k/include/asm/pgalloc.h
index 37bee7e3223d..24ca46d2e090 100644
--- a/arch/m68k/include/asm/pgalloc.h
+++ b/arch/m68k/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef M68K_PGALLOC_H
 #define M68K_PGALLOC_H
 
diff --git a/arch/m68k/include/asm/pgtable.h b/arch/m68k/include/asm/pgtable.h
index a3d733b524d2..ad15d655a9bf 100644
--- a/arch/m68k/include/asm/pgtable.h
+++ b/arch/m68k/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __uClinux__
 #include <asm/pgtable_no.h>
 #else
diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h
index 35ed4a9981ae..6181e4134483 100644
--- a/arch/m68k/include/asm/pgtable_mm.h
+++ b/arch/m68k/include/asm/pgtable_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_PGTABLE_H
 #define _M68K_PGTABLE_H
 
diff --git a/arch/m68k/include/asm/pgtable_no.h b/arch/m68k/include/asm/pgtable_no.h
index ac7d87a02335..fc3a96c77bd8 100644
--- a/arch/m68k/include/asm/pgtable_no.h
+++ b/arch/m68k/include/asm/pgtable_no.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68KNOMMU_PGTABLE_H
 #define _M68KNOMMU_PGTABLE_H
 
diff --git a/arch/m68k/include/asm/processor.h b/arch/m68k/include/asm/processor.h
index 94c36030440c..464e9f5f50ee 100644
--- a/arch/m68k/include/asm/processor.h
+++ b/arch/m68k/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-m68k/processor.h
  *
diff --git a/arch/m68k/include/asm/ptrace.h b/arch/m68k/include/asm/ptrace.h
index a45cb6894ad3..ea5a80ca1ab3 100644
--- a/arch/m68k/include/asm/ptrace.h
+++ b/arch/m68k/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_PTRACE_H
 #define _M68K_PTRACE_H
 
diff --git a/arch/m68k/include/asm/q40_master.h b/arch/m68k/include/asm/q40_master.h
index c48d21b68f04..3a89c088800c 100644
--- a/arch/m68k/include/asm/q40_master.h
+++ b/arch/m68k/include/asm/q40_master.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Q40 master Chip Control
  * RTC stuff merged for compactness.
diff --git a/arch/m68k/include/asm/q40ints.h b/arch/m68k/include/asm/q40ints.h
index 22f12c9eb910..7c93ac4117b8 100644
--- a/arch/m68k/include/asm/q40ints.h
+++ b/arch/m68k/include/asm/q40ints.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * contains some Q40 related interrupt definitions
  */
diff --git a/arch/m68k/include/asm/quicc_simple.h b/arch/m68k/include/asm/quicc_simple.h
index c3636932d4bc..b9e2808b44ac 100644
--- a/arch/m68k/include/asm/quicc_simple.h
+++ b/arch/m68k/include/asm/quicc_simple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /***********************************
  * $Id: quicc_simple.h,v 1.1 2002/03/02 15:01:10 gerg Exp $
  ***********************************
diff --git a/arch/m68k/include/asm/raw_io.h b/arch/m68k/include/asm/raw_io.h
index 932faa35655b..05e940c29b54 100644
--- a/arch/m68k/include/asm/raw_io.h
+++ b/arch/m68k/include/asm/raw_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-m68k/raw_io.h
  *
diff --git a/arch/m68k/include/asm/segment.h b/arch/m68k/include/asm/segment.h
index 98216b8111f0..0b4cc1e079b5 100644
--- a/arch/m68k/include/asm/segment.h
+++ b/arch/m68k/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_SEGMENT_H
 #define _M68K_SEGMENT_H
 
diff --git a/arch/m68k/include/asm/serial.h b/arch/m68k/include/asm/serial.h
index 6d4497049b4b..3f76bc7b9edb 100644
--- a/arch/m68k/include/asm/serial.h
+++ b/arch/m68k/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-m68k/serial.h
  *
diff --git a/arch/m68k/include/asm/signal.h b/arch/m68k/include/asm/signal.h
index 3bc64d02ba5f..8af85c38d377 100644
--- a/arch/m68k/include/asm/signal.h
+++ b/arch/m68k/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_SIGNAL_H
 #define _M68K_SIGNAL_H
 
diff --git a/arch/m68k/include/asm/string.h b/arch/m68k/include/asm/string.h
index c30c03d98581..f759d944c449 100644
--- a/arch/m68k/include/asm/string.h
+++ b/arch/m68k/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_STRING_H_
 #define _M68K_STRING_H_
 
diff --git a/arch/m68k/include/asm/sun3-head.h b/arch/m68k/include/asm/sun3-head.h
index 05af2f18b3bd..5656a265ea58 100644
--- a/arch/m68k/include/asm/sun3-head.h
+++ b/arch/m68k/include/asm/sun3-head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUN3_HEAD_H
 #define __SUN3_HEAD_H
 
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 1901f61f926f..11485d38de4e 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sun3_pgalloc.h --
  * reorganization around 2.3.39, routines moved from sun3_pgtable.h
  *
diff --git a/arch/m68k/include/asm/sun3_pgtable.h b/arch/m68k/include/asm/sun3_pgtable.h
index d5104a7b5388..c987d50866b4 100644
--- a/arch/m68k/include/asm/sun3_pgtable.h
+++ b/arch/m68k/include/asm/sun3_pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SUN3_PGTABLE_H
 #define _SUN3_PGTABLE_H
 
diff --git a/arch/m68k/include/asm/sun3mmu.h b/arch/m68k/include/asm/sun3mmu.h
index d8f17a0d8c9f..21a75daa278f 100644
--- a/arch/m68k/include/asm/sun3mmu.h
+++ b/arch/m68k/include/asm/sun3mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for Sun3 custom MMU.
  */
diff --git a/arch/m68k/include/asm/sun3x.h b/arch/m68k/include/asm/sun3x.h
index f5691a1ed7cc..b3a83bcaf47e 100644
--- a/arch/m68k/include/asm/sun3x.h
+++ b/arch/m68k/include/asm/sun3x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SUN3X_H
 #define SUN3X_H
 
diff --git a/arch/m68k/include/asm/sun3xflop.h b/arch/m68k/include/asm/sun3xflop.h
index 159269b7f2e8..ef04c43acd13 100644
--- a/arch/m68k/include/asm/sun3xflop.h
+++ b/arch/m68k/include/asm/sun3xflop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sun3xflop.h: Sun3/80 specific parts of the floppy driver.
  *
  * Derived partially from asm-sparc/floppy.h, which is:
diff --git a/arch/m68k/include/asm/sun3xprom.h b/arch/m68k/include/asm/sun3xprom.h
index 6735efcf5f6d..d244ca4a9149 100644
--- a/arch/m68k/include/asm/sun3xprom.h
+++ b/arch/m68k/include/asm/sun3xprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Useful PROM locations */
 
 #ifndef SUN3X_PROM_H
diff --git a/arch/m68k/include/asm/switch_to.h b/arch/m68k/include/asm/switch_to.h
index 16fd6b634982..94f02f46c5fb 100644
--- a/arch/m68k/include/asm/switch_to.h
+++ b/arch/m68k/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_SWITCH_TO_H
 #define _M68K_SWITCH_TO_H
 
diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h
index cee13c2e5161..928035591f2e 100644
--- a/arch/m68k/include/asm/thread_info.h
+++ b/arch/m68k/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_THREAD_INFO_H
 #define _ASM_M68K_THREAD_INFO_H
 
diff --git a/arch/m68k/include/asm/timex.h b/arch/m68k/include/asm/timex.h
index efc1f4892357..6a21d9358280 100644
--- a/arch/m68k/include/asm/timex.h
+++ b/arch/m68k/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-m68k/timex.h
  *
diff --git a/arch/m68k/include/asm/tlb.h b/arch/m68k/include/asm/tlb.h
index 1785cff73449..b4b9efb6f963 100644
--- a/arch/m68k/include/asm/tlb.h
+++ b/arch/m68k/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_TLB_H
 #define _M68K_TLB_H
 
diff --git a/arch/m68k/include/asm/tlbflush.h b/arch/m68k/include/asm/tlbflush.h
index 965ea35c9a40..191e75a6bb24 100644
--- a/arch/m68k/include/asm/tlbflush.h
+++ b/arch/m68k/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_TLBFLUSH_H
 #define _M68K_TLBFLUSH_H
 
diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 63ba18e4c9a2..e896466a41a4 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __uClinux__
 #include <asm/uaccess_no.h>
 #else
diff --git a/arch/m68k/include/asm/uaccess_mm.h b/arch/m68k/include/asm/uaccess_mm.h
index 1da1e23de74c..75c172e909ac 100644
--- a/arch/m68k/include/asm/uaccess_mm.h
+++ b/arch/m68k/include/asm/uaccess_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M68K_UACCESS_H
 #define __M68K_UACCESS_H
 
diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h
index 53d7b792a43d..892efb56beef 100644
--- a/arch/m68k/include/asm/uaccess_no.h
+++ b/arch/m68k/include/asm/uaccess_no.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __M68KNOMMU_UACCESS_H
 #define __M68KNOMMU_UACCESS_H
 
diff --git a/arch/m68k/include/asm/ucontext.h b/arch/m68k/include/asm/ucontext.h
index e4e22669edc0..1523a8e5ff22 100644
--- a/arch/m68k/include/asm/ucontext.h
+++ b/arch/m68k/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_UCONTEXT_H
 #define _M68K_UCONTEXT_H
 
diff --git a/arch/m68k/include/asm/unaligned.h b/arch/m68k/include/asm/unaligned.h
index 2b3ca0bf7a0d..98c8930d3d35 100644
--- a/arch/m68k/include/asm/unaligned.h
+++ b/arch/m68k/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_UNALIGNED_H
 #define _ASM_M68K_UNALIGNED_H
 
diff --git a/arch/m68k/include/asm/unistd.h b/arch/m68k/include/asm/unistd.h
index aab1edd0d4ba..30d0d3fbd4ef 100644
--- a/arch/m68k/include/asm/unistd.h
+++ b/arch/m68k/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_UNISTD_H_
 #define _ASM_M68K_UNISTD_H_
 
diff --git a/arch/m68k/include/asm/user.h b/arch/m68k/include/asm/user.h
index f1f478d6e050..509d555977c8 100644
--- a/arch/m68k/include/asm/user.h
+++ b/arch/m68k/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _M68K_USER_H
 #define _M68K_USER_H
 
diff --git a/arch/m68k/include/asm/vga.h b/arch/m68k/include/asm/vga.h
index d3aa1401e7aa..010a624d1b39 100644
--- a/arch/m68k/include/asm/vga.h
+++ b/arch/m68k/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_VGA_H
 #define _ASM_M68K_VGA_H
 
diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h
index b8a82fb1cef8..4aea6be7b220 100644
--- a/arch/m68k/include/asm/virtconvert.h
+++ b/arch/m68k/include/asm/virtconvert.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __VIRT_CONVERT__
 #define __VIRT_CONVERT__
 
diff --git a/arch/m68k/include/asm/zorro.h b/arch/m68k/include/asm/zorro.h
index 5ce97c22b582..96f64bf7bcaa 100644
--- a/arch/m68k/include/asm/zorro.h
+++ b/arch/m68k/include/asm/zorro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_M68K_ZORRO_H
 #define _ASM_M68K_ZORRO_H
 
diff --git a/arch/m68k/include/uapi/asm/a.out.h b/arch/m68k/include/uapi/asm/a.out.h
index 3885fe43432a..3eb24fd8b810 100644
--- a/arch/m68k/include/uapi/asm/a.out.h
+++ b/arch/m68k/include/uapi/asm/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __M68K_A_OUT_H__
 #define __M68K_A_OUT_H__
 
diff --git a/arch/m68k/include/uapi/asm/bootinfo-amiga.h b/arch/m68k/include/uapi/asm/bootinfo-amiga.h
index daad3c58d2da..69bf4dda341e 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-amiga.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-amiga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-amiga.h -- Amiga-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo-apollo.h b/arch/m68k/include/uapi/asm/bootinfo-apollo.h
index a93e0af1c6fe..c226f7957938 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-apollo.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-apollo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-apollo.h -- Apollo-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo-atari.h b/arch/m68k/include/uapi/asm/bootinfo-atari.h
index a817854049bb..f2218a090fdb 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-atari.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-atari.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-atari.h -- Atari-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo-hp300.h b/arch/m68k/include/uapi/asm/bootinfo-hp300.h
index c90cb71ed89a..2141c4f5f0a7 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-hp300.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-hp300.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-hp300.h -- HP9000/300-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo-mac.h b/arch/m68k/include/uapi/asm/bootinfo-mac.h
index b44ff73898a9..449928cfcbf2 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-mac.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-mac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-mac.h -- Macintosh-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo-q40.h b/arch/m68k/include/uapi/asm/bootinfo-q40.h
index c79fea7e555b..78bda04bf788 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-q40.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-q40.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-q40.h -- Q40-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo-vme.h b/arch/m68k/include/uapi/asm/bootinfo-vme.h
index a135eb41d672..f36a09ab5e79 100644
--- a/arch/m68k/include/uapi/asm/bootinfo-vme.h
+++ b/arch/m68k/include/uapi/asm/bootinfo-vme.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/bootinfo-vme.h -- VME-specific boot information definitions
 */
diff --git a/arch/m68k/include/uapi/asm/bootinfo.h b/arch/m68k/include/uapi/asm/bootinfo.h
index a48cf544c762..38d3140381fa 100644
--- a/arch/m68k/include/uapi/asm/bootinfo.h
+++ b/arch/m68k/include/uapi/asm/bootinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * asm/bootinfo.h -- Definition of the Linux/m68k boot information structure
  *
diff --git a/arch/m68k/include/uapi/asm/byteorder.h b/arch/m68k/include/uapi/asm/byteorder.h
index 31b260a88803..1fb5732f4a91 100644
--- a/arch/m68k/include/uapi/asm/byteorder.h
+++ b/arch/m68k/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _M68K_BYTEORDER_H
 #define _M68K_BYTEORDER_H
 
diff --git a/arch/m68k/include/uapi/asm/cachectl.h b/arch/m68k/include/uapi/asm/cachectl.h
index 525978e959e3..6171e246ca7b 100644
--- a/arch/m68k/include/uapi/asm/cachectl.h
+++ b/arch/m68k/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _M68K_CACHECTL_H
 #define _M68K_CACHECTL_H
 
diff --git a/arch/m68k/include/uapi/asm/fcntl.h b/arch/m68k/include/uapi/asm/fcntl.h
index 1c369b20dc45..c6861e6ee313 100644
--- a/arch/m68k/include/uapi/asm/fcntl.h
+++ b/arch/m68k/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _M68K_FCNTL_H
 #define _M68K_FCNTL_H
 
diff --git a/arch/m68k/include/uapi/asm/ioctls.h b/arch/m68k/include/uapi/asm/ioctls.h
index 1332bb4ca5b0..d92d7c7786bf 100644
--- a/arch/m68k/include/uapi/asm/ioctls.h
+++ b/arch/m68k/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_M68K_IOCTLS_H__
 #define __ARCH_M68K_IOCTLS_H__
 
diff --git a/arch/m68k/include/uapi/asm/param.h b/arch/m68k/include/uapi/asm/param.h
index 36265ccf5c7b..726b2e7ec70d 100644
--- a/arch/m68k/include/uapi/asm/param.h
+++ b/arch/m68k/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _M68K_PARAM_H
 #define _M68K_PARAM_H
 
diff --git a/arch/m68k/include/uapi/asm/poll.h b/arch/m68k/include/uapi/asm/poll.h
index f080fcdb61bf..c3e3fcc15e1d 100644
--- a/arch/m68k/include/uapi/asm/poll.h
+++ b/arch/m68k/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __m68k_POLL_H
 #define __m68k_POLL_H
 
diff --git a/arch/m68k/include/uapi/asm/posix_types.h b/arch/m68k/include/uapi/asm/posix_types.h
index cf4dbf70fdc7..10a65149b5f2 100644
--- a/arch/m68k/include/uapi/asm/posix_types.h
+++ b/arch/m68k/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_M68K_POSIX_TYPES_H
 #define __ARCH_M68K_POSIX_TYPES_H
 
diff --git a/arch/m68k/include/uapi/asm/ptrace.h b/arch/m68k/include/uapi/asm/ptrace.h
index caf92fd34939..19a1b9d0d858 100644
--- a/arch/m68k/include/uapi/asm/ptrace.h
+++ b/arch/m68k/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_M68K_PTRACE_H
 #define _UAPI_M68K_PTRACE_H
 
diff --git a/arch/m68k/include/uapi/asm/setup.h b/arch/m68k/include/uapi/asm/setup.h
index 6a6dc636761e..25fe26d5597c 100644
--- a/arch/m68k/include/uapi/asm/setup.h
+++ b/arch/m68k/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
 ** asm/setup.h -- Definition of the Linux/m68k setup information
 **
diff --git a/arch/m68k/include/uapi/asm/sigcontext.h b/arch/m68k/include/uapi/asm/sigcontext.h
index 523db2a51cf3..6cc8421c8a73 100644
--- a/arch/m68k/include/uapi/asm/sigcontext.h
+++ b/arch/m68k/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_M68k_SIGCONTEXT_H
 #define _ASM_M68k_SIGCONTEXT_H
 
diff --git a/arch/m68k/include/uapi/asm/signal.h b/arch/m68k/include/uapi/asm/signal.h
index cba6f858bb46..915cc755a184 100644
--- a/arch/m68k/include/uapi/asm/signal.h
+++ b/arch/m68k/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_M68K_SIGNAL_H
 #define _UAPI_M68K_SIGNAL_H
 
diff --git a/arch/m68k/include/uapi/asm/stat.h b/arch/m68k/include/uapi/asm/stat.h
index dd38bc2e9f98..1e15e6517b9c 100644
--- a/arch/m68k/include/uapi/asm/stat.h
+++ b/arch/m68k/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _M68K_STAT_H
 #define _M68K_STAT_H
 
diff --git a/arch/m68k/include/uapi/asm/swab.h b/arch/m68k/include/uapi/asm/swab.h
index b7b37a40defc..9ef4fafba7d4 100644
--- a/arch/m68k/include/uapi/asm/swab.h
+++ b/arch/m68k/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _M68K_SWAB_H
 #define _M68K_SWAB_H
 
diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h
index 25589f5b8669..de3054f8a681 100644
--- a/arch/m68k/include/uapi/asm/unistd.h
+++ b/arch/m68k/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_M68K_UNISTD_H_
 #define _UAPI_ASM_M68K_UNISTD_H_
 
diff --git a/arch/m68k/kernel/Makefile b/arch/m68k/kernel/Makefile
index 74c898ced8cc..dbac7f8743fc 100644
--- a/arch/m68k/kernel/Makefile
+++ b/arch/m68k/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/m68k/kernel/asm-offsets.c b/arch/m68k/kernel/asm-offsets.c
index 3a386341aa6e..ccea355052ef 100644
--- a/arch/m68k/kernel/asm-offsets.c
+++ b/arch/m68k/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This program is used to generate definitions needed by
  * assembly language modules.
diff --git a/arch/m68k/kernel/bootinfo_proc.c b/arch/m68k/kernel/bootinfo_proc.c
index 2a33a9645ad8..3b9cab84917d 100644
--- a/arch/m68k/kernel/bootinfo_proc.c
+++ b/arch/m68k/kernel/bootinfo_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Based on arch/arm/kernel/atags_proc.c
  */
diff --git a/arch/m68k/kernel/machine_kexec.c b/arch/m68k/kernel/machine_kexec.c
index d4affc917d9d..206f84983120 100644
--- a/arch/m68k/kernel/machine_kexec.c
+++ b/arch/m68k/kernel/machine_kexec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * machine_kexec.c - handle transition of Linux booting another kernel
  */
diff --git a/arch/m68k/kernel/process.c b/arch/m68k/kernel/process.c
index 7df92f8b0781..4e77a06735c1 100644
--- a/arch/m68k/kernel/process.c
+++ b/arch/m68k/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/kernel/process.c
  *
diff --git a/arch/m68k/kernel/relocate_kernel.S b/arch/m68k/kernel/relocate_kernel.S
index 3e09a89067ad..ab0f1e7d4653 100644
--- a/arch/m68k/kernel/relocate_kernel.S
+++ b/arch/m68k/kernel/relocate_kernel.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 #include <asm/asm-offsets.h>
diff --git a/arch/m68k/kernel/setup.c b/arch/m68k/kernel/setup.c
index 4bf129f1d2e2..19a92982629a 100644
--- a/arch/m68k/kernel/setup.c
+++ b/arch/m68k/kernel/setup.c
@@ -1,5 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifdef CONFIG_MMU
 #include "setup_mm.c"
 #else
 #include "setup_no.c"
 #endif
+
+#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
+void (*mach_beep)(unsigned int, unsigned int);
+EXPORT_SYMBOL(mach_beep);
+#endif
diff --git a/arch/m68k/kernel/setup_mm.c b/arch/m68k/kernel/setup_mm.c
index 7a2c21212820..dd25bfc22fb4 100644
--- a/arch/m68k/kernel/setup_mm.c
+++ b/arch/m68k/kernel/setup_mm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/kernel/setup.c
  *
@@ -105,10 +106,6 @@ EXPORT_SYMBOL(mach_heartbeat);
 #ifdef CONFIG_M68K_L2_CACHE
 void (*mach_l2_flush) (int);
 #endif
-#if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
-void (*mach_beep)(unsigned int, unsigned int);
-EXPORT_SYMBOL(mach_beep);
-#endif
 #if defined(CONFIG_ISA) && defined(MULTI_ISA)
 int isa_type;
 int isa_sex;
@@ -343,6 +340,8 @@ void __init setup_arch(char **cmdline_p)
 #ifdef CONFIG_COLDFIRE
 	case MACH_M54XX:
 	case MACH_M5441X:
+		cf_bootmem_alloc();
+		cf_mmu_context_init();
 		config_BSP(NULL, 0);
 		break;
 #endif
diff --git a/arch/m68k/kernel/setup_no.c b/arch/m68k/kernel/setup_no.c
index 8afe6f651c1c..a98af1018201 100644
--- a/arch/m68k/kernel/setup_no.c
+++ b/arch/m68k/kernel/setup_no.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68knommu/kernel/setup.c
  *
diff --git a/arch/m68k/kernel/sun3-head.S b/arch/m68k/kernel/sun3-head.S
index 43036bf4aeed..faf18f4fab1f 100644
--- a/arch/m68k/kernel/sun3-head.S
+++ b/arch/m68k/kernel/sun3-head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <linux/init.h>
 
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 933e4815dac8..27e10af5153a 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m68k/kernel/sys_m68k.c
  *
diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S
index 8c9fcfafe0dd..2c8402e75f62 100644
--- a/arch/m68k/kernel/syscalltable.S
+++ b/arch/m68k/kernel/syscalltable.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 2002, Greg Ungerer (gerg@snapgear.com)
  *
diff --git a/arch/m68k/kernel/vmlinux-nommu.lds b/arch/m68k/kernel/vmlinux-nommu.lds
index d2c8abf1c8c4..3aa571a513b5 100644
--- a/arch/m68k/kernel/vmlinux-nommu.lds
+++ b/arch/m68k/kernel/vmlinux-nommu.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	vmlinux.lds.S -- master linker script for m68knommu arch
  *
diff --git a/arch/m68k/kernel/vmlinux-std.lds b/arch/m68k/kernel/vmlinux-std.lds
index 5b5ce1e4d1ed..89172b8974b9 100644
--- a/arch/m68k/kernel/vmlinux-std.lds
+++ b/arch/m68k/kernel/vmlinux-std.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make m68k Linux kernel */
 
 #include <asm-generic/vmlinux.lds.h>
diff --git a/arch/m68k/kernel/vmlinux-sun3.lds b/arch/m68k/kernel/vmlinux-sun3.lds
index fe5ea1974b16..293990efc917 100644
--- a/arch/m68k/kernel/vmlinux-sun3.lds
+++ b/arch/m68k/kernel/vmlinux-sun3.lds
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make m68k Linux kernel */
 
 #include <asm-generic/vmlinux.lds.h>
diff --git a/arch/m68k/kernel/vmlinux.lds.S b/arch/m68k/kernel/vmlinux.lds.S
index 69ec79638870..d3d3c305ebc9 100644
--- a/arch/m68k/kernel/vmlinux.lds.S
+++ b/arch/m68k/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
 PHDRS
 {
diff --git a/arch/m68k/lib/Makefile b/arch/m68k/lib/Makefile
index fcd8eb1d7c7d..eca17f14b4d5 100644
--- a/arch/m68k/lib/Makefile
+++ b/arch/m68k/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 #
 # Makefile for m68k-specific library files..
diff --git a/arch/m68k/mac/baboon.c b/arch/m68k/mac/baboon.c
index 514acde3cd40..c7ea6475ef9b 100644
--- a/arch/m68k/mac/baboon.c
+++ b/arch/m68k/mac/baboon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Baboon Custom IC Management
  *
@@ -36,7 +37,7 @@ void __init baboon_init(void)
 	baboon = (struct baboon *) BABOON_BASE;
 	baboon_present = 1;
 
-	printk("Baboon detected at %p\n", baboon);
+	pr_debug("Baboon detected at %p\n", baboon);
 }
 
 /*
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index 22123f7e8f75..16cd5cea5207 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -898,8 +898,8 @@ static void __init mac_identify(void)
 		mac_bi_data.id, mac_bi_data.cpuid, mac_bi_data.memsize);
 
 	iop_init();
-	via_init();
 	oss_init();
+	via_init();
 	psc_init();
 	baboon_init();
 
diff --git a/arch/m68k/mac/iop.c b/arch/m68k/mac/iop.c
index 4c1e606e7d03..9bfa17015768 100644
--- a/arch/m68k/mac/iop.c
+++ b/arch/m68k/mac/iop.c
@@ -273,10 +273,10 @@ void __init iop_init(void)
 	int i;
 
 	if (iop_scc_present) {
-		pr_info("IOP: detected SCC IOP at %p\n", iop_base[IOP_NUM_SCC]);
+		pr_debug("SCC IOP detected at %p\n", iop_base[IOP_NUM_SCC]);
 	}
 	if (iop_ism_present) {
-		pr_info("IOP: detected ISM IOP at %p\n", iop_base[IOP_NUM_ISM]);
+		pr_debug("ISM IOP detected at %p\n", iop_base[IOP_NUM_ISM]);
 		iop_start(iop_base[IOP_NUM_ISM]);
 		iop_alive(iop_base[IOP_NUM_ISM]); /* clears the alive flag */
 	}
@@ -598,3 +598,12 @@ irqreturn_t iop_ism_irq(int irq, void *dev_id)
 	}
 	return IRQ_HANDLED;
 }
+
+void iop_ism_irq_poll(uint iop_num)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	iop_ism_irq(0, (void *)iop_num);
+	local_irq_restore(flags);
+}
diff --git a/arch/m68k/mac/mac_penguin.S b/arch/m68k/mac/mac_penguin.S
index b3ce30b6071d..359e63bb632d 100644
--- a/arch/m68k/mac/mac_penguin.S
+++ b/arch/m68k/mac/mac_penguin.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 .byte \
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF,0xFF,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\
 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0F,0xFF,0xFF,0xFF,0xFF,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,\
diff --git a/arch/m68k/mac/macboing.c b/arch/m68k/mac/macboing.c
index ffaa1f6439ae..d17668649641 100644
--- a/arch/m68k/mac/macboing.c
+++ b/arch/m68k/mac/macboing.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Mac bong noise generator. Note - we ought to put a boingy noise
  *	here 8)
@@ -56,7 +57,7 @@ static void ( *mac_special_bell )( unsigned int, unsigned int, unsigned int );
 /*
  * our timer to start/continue/stop the bell
  */
-static DEFINE_TIMER(mac_sound_timer, mac_nosound, 0, 0);
+static DEFINE_TIMER(mac_sound_timer, mac_nosound);
 
 /*
  * Sort of initialize the sound chip (called from mac_mksound on the first
diff --git a/arch/m68k/mac/macints.c b/arch/m68k/mac/macints.c
index 9637dee90dac..e3575388cd05 100644
--- a/arch/m68k/mac/macints.c
+++ b/arch/m68k/mac/macints.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Macintosh interrupts
  *
diff --git a/arch/m68k/mac/misc.c b/arch/m68k/mac/misc.c
index d96348a52362..4956edaac926 100644
--- a/arch/m68k/mac/misc.c
+++ b/arch/m68k/mac/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Miscellaneous Mac68K-specific stuff
  */
diff --git a/arch/m68k/mac/oss.c b/arch/m68k/mac/oss.c
index ca84dcf41fc9..3f81892527ad 100644
--- a/arch/m68k/mac/oss.c
+++ b/arch/m68k/mac/oss.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Operating System Services (OSS) chip handling
  *	Written by Joshua M. Thompson (funaho@jurai.org)
@@ -31,18 +32,18 @@ volatile struct mac_oss *oss;
 
 /*
  * Initialize the OSS
- *
- * The OSS "detection" code is actually in via_init() which is always called
- * before us. Thus we can count on oss_present being valid on entry.
  */
 
 void __init oss_init(void)
 {
 	int i;
 
-	if (!oss_present) return;
+	if (macintosh_config->ident != MAC_MODEL_IIFX)
+		return;
 
 	oss = (struct mac_oss *) OSS_BASE;
+	pr_debug("OSS detected at %p", oss);
+	oss_present = 1;
 
 	/* Disable all interrupts. Unlike a VIA it looks like we    */
 	/* do this by setting the source's interrupt level to zero. */
@@ -52,14 +53,6 @@ void __init oss_init(void)
 }
 
 /*
- * Initialize OSS for Nubus access
- */
-
-void __init oss_nubus_init(void)
-{
-}
-
-/*
  * Handle miscellaneous OSS interrupts.
  */
 
diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index 439a2a2e5874..8d547df4e16c 100644
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -42,7 +42,7 @@ static void psc_debug_dump(void)
 		return;
 
 	for (i = 0x30 ; i < 0x70 ; i += 0x10) {
-		printk("PSC #%d:  IFR = 0x%02X IER = 0x%02X\n",
+		printk(KERN_DEBUG "PSC #%d:  IFR = 0x%02X IER = 0x%02X\n",
 			i >> 4,
 			(int) psc_read_byte(pIFRbase + i),
 			(int) psc_read_byte(pIERbase + i));
@@ -59,14 +59,12 @@ static __init void psc_dma_die_die_die(void)
 {
 	int i;
 
-	printk("Killing all PSC DMA channels...");
 	for (i = 0 ; i < 9 ; i++) {
 		psc_write_word(PSC_CTL_BASE + (i << 4), 0x8800);
 		psc_write_word(PSC_CTL_BASE + (i << 4), 0x1000);
 		psc_write_word(PSC_CMD_BASE + (i << 5), 0x1100);
 		psc_write_word(PSC_CMD_BASE + (i << 5) + 0x10, 0x1100);
 	}
-	printk("done!\n");
 }
 
 /*
@@ -92,7 +90,7 @@ void __init psc_init(void)
 
 	psc = (void *) PSC_BASE;
 
-	printk("PSC detected at %p\n", psc);
+	pr_debug("PSC detected at %p\n", psc);
 
 	psc_dma_die_die_die();
 
diff --git a/arch/m68k/mac/via.c b/arch/m68k/mac/via.c
index 16629e91feba..acdabbeecfd2 100644
--- a/arch/m68k/mac/via.c
+++ b/arch/m68k/mac/via.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	6522 Versatile Interface Adapter (VIA)
  *
@@ -106,6 +107,7 @@ static int gIER,gIFR,gBufA,gBufB;
 static u8 nubus_disabled;
 
 void via_debug_dump(void);
+static void via_nubus_init(void);
 
 /*
  * Initialize the VIAs
@@ -113,29 +115,25 @@ void via_debug_dump(void);
  * First we figure out where they actually _are_ as well as what type of
  * VIA we have for VIA2 (it could be a real VIA or an RBV or even an OSS.)
  * Then we pretty much clear them out and disable all IRQ sources.
- *
- * Note: the OSS is actually "detected" here and not in oss_init(). It just
- *	 seems more logical to do it here since via_init() needs to know
- *	 these things anyways.
  */
 
 void __init via_init(void)
 {
-	switch(macintosh_config->via_type) {
+	via1 = (void *)VIA1_BASE;
+	pr_debug("VIA1 detected at %p\n", via1);
+
+	if (oss_present) {
+		via2 = NULL;
+		rbv_present = 0;
+	} else {
+		switch (macintosh_config->via_type) {
 
 		/* IIci, IIsi, IIvx, IIvi (P6xx), LC series */
 
 		case MAC_VIA_IICI:
-			via1 = (void *) VIA1_BASE;
-			if (macintosh_config->ident == MAC_MODEL_IIFX) {
-				via2 = NULL;
-				rbv_present = 0;
-				oss_present = 1;
-			} else {
-				via2 = (void *) RBV_BASE;
-				rbv_present = 1;
-				oss_present = 0;
-			}
+			via2 = (void *)RBV_BASE;
+			pr_debug("VIA2 (RBV) detected at %p\n", via2);
+			rbv_present = 1;
 			if (macintosh_config->ident == MAC_MODEL_LCIII) {
 				rbv_clear = 0x00;
 			} else {
@@ -154,29 +152,19 @@ void __init via_init(void)
 
 		case MAC_VIA_QUADRA:
 		case MAC_VIA_II:
-			via1 = (void *) VIA1_BASE;
 			via2 = (void *) VIA2_BASE;
+			pr_debug("VIA2 detected at %p\n", via2);
 			rbv_present = 0;
-			oss_present = 0;
 			rbv_clear = 0x00;
 			gIER = vIER;
 			gIFR = vIFR;
 			gBufA = vBufA;
 			gBufB = vBufB;
 			break;
+
 		default:
 			panic("UNKNOWN VIA TYPE");
-	}
-
-	printk(KERN_INFO "VIA1 at %p is a 6522 or clone\n", via1);
-
-	printk(KERN_INFO "VIA2 at %p is ", via2);
-	if (rbv_present) {
-		printk("an RBV\n");
-	} else if (oss_present) {
-		printk("an OSS\n");
-	} else {
-		printk("a 6522 or clone\n");
+		}
 	}
 
 #ifdef DEBUG_VIA
@@ -252,6 +240,8 @@ void __init via_init(void)
 		via2[vACR] &= ~0x03; /* disable port A & B latches */
 	}
 
+	via_nubus_init();
+
 	/* Everything below this point is VIA2 only... */
 
 	if (rbv_present)
@@ -303,9 +293,9 @@ void via_debug_dump(void)
 		(uint) via1[vDirA], (uint) via1[vDirB], (uint) via1[vACR]);
 	printk(KERN_DEBUG "         PCR = 0x%02X  IFR = 0x%02X IER = 0x%02X\n",
 		(uint) via1[vPCR], (uint) via1[vIFR], (uint) via1[vIER]);
-	if (oss_present) {
-		printk(KERN_DEBUG "VIA2: <OSS>\n");
-	} else if (rbv_present) {
+	if (!via2)
+		return;
+	if (rbv_present) {
 		printk(KERN_DEBUG "VIA2:  IFR = 0x%02X  IER = 0x%02X\n",
 			(uint) via2[rIFR], (uint) via2[rIER]);
 		printk(KERN_DEBUG "      SIFR = 0x%02X SIER = 0x%02X\n",
@@ -373,7 +363,7 @@ int via_get_cache_disable(void)
  * Initialize VIA2 for Nubus access
  */
 
-void __init via_nubus_init(void)
+static void __init via_nubus_init(void)
 {
 	/* unlock nubus transactions */
 
diff --git a/arch/m68k/mm/Makefile b/arch/m68k/mm/Makefile
index cfbf3205724a..b3adb5253393 100644
--- a/arch/m68k/mm/Makefile
+++ b/arch/m68k/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux m68k-specific parts of the memory manager.
 #
diff --git a/arch/m68k/mm/cache.c b/arch/m68k/mm/cache.c
index 3d84c1f2ffb2..079e64898e6a 100644
--- a/arch/m68k/mm/cache.c
+++ b/arch/m68k/mm/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/mm/cache.c
  *
diff --git a/arch/m68k/mm/fault.c b/arch/m68k/mm/fault.c
index 2795e4ca09d7..127d7c1f2090 100644
--- a/arch/m68k/mm/fault.c
+++ b/arch/m68k/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/mm/fault.c
  *
diff --git a/arch/m68k/mm/hwtest.c b/arch/m68k/mm/hwtest.c
index fb8be4dd38c4..fe99aa99987e 100644
--- a/arch/m68k/mm/hwtest.c
+++ b/arch/m68k/mm/hwtest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Tests for presence or absence of hardware registers.
  * This code was originally in atari/config.c, but I noticed
  * that it was also in drivers/nubus/nubus.c and I wanted to
diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c
index a6ffead9bef5..e85acd131fa8 100644
--- a/arch/m68k/mm/init.c
+++ b/arch/m68k/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/mm/init.c
  *
diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c
index 6e4955bc542b..c2a38321c96d 100644
--- a/arch/m68k/mm/kmap.c
+++ b/arch/m68k/mm/kmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/mm/kmap.c
  *
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index 87131cd3bc8f..2925d795d71a 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Based upon linux/arch/m68k/mm/sun3mmu.c
  * Based upon linux/arch/ppc/mm/mmu_context.c
@@ -169,7 +170,7 @@ void __init cf_bootmem_alloc(void)
 	max_pfn = max_low_pfn = PFN_DOWN(_ramend);
 	high_memory = (void *)_ramend;
 
-	m68k_virt_to_node_shift = fls(_ramend - _rambase - 1) - 6;
+	m68k_virt_to_node_shift = fls(_ramend - 1) - 6;
 	module_fixup(NULL, __start_fixup, __stop_fixup);
 
 	/* setup bootmem data */
@@ -183,7 +184,7 @@ void __init cf_bootmem_alloc(void)
  * Initialize the context management stuff.
  * The following was taken from arch/ppc/mmu_context.c
  */
-void __init mmu_context_init(void)
+void __init cf_mmu_context_init(void)
 {
 	/*
 	 * Some processors have too few contexts to reserve one for
diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index 4902b681a9fc..b86a2e21693b 100644
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/mm/memory.c
  *
diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c
index 7cb72dbc2eaa..e490ecc7842c 100644
--- a/arch/m68k/mm/motorola.c
+++ b/arch/m68k/mm/motorola.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m68k/mm/motorola.c
  *
diff --git a/arch/m68k/mm/sun3mmu.c b/arch/m68k/mm/sun3mmu.c
index 177d776de1a0..4a9979908357 100644
--- a/arch/m68k/mm/sun3mmu.c
+++ b/arch/m68k/mm/sun3mmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m68k/mm/sun3mmu.c
  *
diff --git a/arch/m68k/mvme16x/rtc.c b/arch/m68k/mvme16x/rtc.c
index 7b24577a7bd0..ccbaae1125e6 100644
--- a/arch/m68k/mvme16x/rtc.c
+++ b/arch/m68k/mvme16x/rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Real Time Clock interface for Linux on the MVME16x
  *
diff --git a/arch/m68k/sun3/dvma.c b/arch/m68k/sun3/dvma.c
index ca02ee25894c..5f92c72b05c3 100644
--- a/arch/m68k/sun3/dvma.c
+++ b/arch/m68k/sun3/dvma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m68k/sun3/dvma.c
  *
diff --git a/arch/m68k/sun3/idprom.c b/arch/m68k/sun3/idprom.c
index 9c23f506d60d..1ace5353d78f 100644
--- a/arch/m68k/sun3/idprom.c
+++ b/arch/m68k/sun3/idprom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * idprom.c: Routines to load the idprom into kernel addresses and
  *           interpret the data contained within.
diff --git a/arch/m68k/sun3/leds.c b/arch/m68k/sun3/leds.c
index aad2e0a0682e..7c67b58ebf13 100644
--- a/arch/m68k/sun3/leds.c
+++ b/arch/m68k/sun3/leds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/contregs.h>
 #include <asm/sun3mmu.h>
 #include <asm/io.h>
diff --git a/arch/m68k/sun3/mmu_emu.c b/arch/m68k/sun3/mmu_emu.c
index 7fdc61525e0b..d30da12a1702 100644
--- a/arch/m68k/sun3/mmu_emu.c
+++ b/arch/m68k/sun3/mmu_emu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 ** Tablewalk MMU emulator
 **
diff --git a/arch/m68k/sun3/prom/console.c b/arch/m68k/sun3/prom/console.c
index e92364373b07..eb4f6c903fb8 100644
--- a/arch/m68k/sun3/prom/console.c
+++ b/arch/m68k/sun3/prom/console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * console.c: Routines that deal with sending and receiving IO
  *            to/from the current console device using the PROM.
diff --git a/arch/m68k/sun3/prom/init.c b/arch/m68k/sun3/prom/init.c
index eeba067d565f..0c6d99df6aee 100644
--- a/arch/m68k/sun3/prom/init.c
+++ b/arch/m68k/sun3/prom/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * init.c:  Initialize internal variables used by the PROM
  *          library functions.
diff --git a/arch/m68k/sun3/prom/misc.c b/arch/m68k/sun3/prom/misc.c
index 3d60e1337f75..b8c95940d089 100644
--- a/arch/m68k/sun3/prom/misc.c
+++ b/arch/m68k/sun3/prom/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c:  Miscellaneous prom functions that don't belong
  *          anywhere else.
diff --git a/arch/m68k/sun3/prom/printf.c b/arch/m68k/sun3/prom/printf.c
index 5b82bea03493..b6724cc66795 100644
--- a/arch/m68k/sun3/prom/printf.c
+++ b/arch/m68k/sun3/prom/printf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * printf.c:  Internal prom library printf facility.
  *
diff --git a/arch/m68k/sun3/sun3dvma.c b/arch/m68k/sun3/sun3dvma.c
index d36bd15f9fdc..8546922adb47 100644
--- a/arch/m68k/sun3/sun3dvma.c
+++ b/arch/m68k/sun3/sun3dvma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/m68k/sun3/sun3dvma.c
  *
diff --git a/arch/m68k/sun3x/config.c b/arch/m68k/sun3x/config.c
index 0532d64d191e..33d3a1c6fba0 100644
--- a/arch/m68k/sun3x/config.c
+++ b/arch/m68k/sun3x/config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Setup kernel for a Sun3x machine
  *
diff --git a/arch/m68k/sun3x/dvma.c b/arch/m68k/sun3x/dvma.c
index 9413c8724b0d..b2acbc862f60 100644
--- a/arch/m68k/sun3x/dvma.c
+++ b/arch/m68k/sun3x/dvma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Virtual DMA allocation
  *
diff --git a/arch/m68k/sun3x/prom.c b/arch/m68k/sun3x/prom.c
index 5d60e65c1ee5..be14c899ab7d 100644
--- a/arch/m68k/sun3x/prom.c
+++ b/arch/m68k/sun3x/prom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Prom access routines for the sun3x */
 
 #include <linux/types.h>
diff --git a/arch/m68k/sun3x/time.c b/arch/m68k/sun3x/time.c
index 431d3c4306dd..7a2c53d9f779 100644
--- a/arch/m68k/sun3x/time.c
+++ b/arch/m68k/sun3x/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/m68k/sun3x/time.c
  *
diff --git a/arch/m68k/sun3x/time.h b/arch/m68k/sun3x/time.h
index a4f9126be7e2..496f406412ad 100644
--- a/arch/m68k/sun3x/time.h
+++ b/arch/m68k/sun3x/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SUN3X_TIME_H
 #define SUN3X_TIME_H
 
diff --git a/arch/m68k/tools/amiga/Makefile b/arch/m68k/tools/amiga/Makefile
index 113436136089..e6425b367ca8 100644
--- a/arch/m68k/tools/amiga/Makefile
+++ b/arch/m68k/tools/amiga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 CC =		m68k-cbm-amigados-gcc
 CFLAGS =	-Wall -O2
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 7d8b322e5101..c7b62a339539 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config METAG
 	def_bool y
 	select EMBEDDED
diff --git a/arch/metag/Kconfig.debug b/arch/metag/Kconfig.debug
index cb5c92860540..ac4516c605db 100644
--- a/arch/metag/Kconfig.debug
+++ b/arch/metag/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/metag/Kconfig.soc b/arch/metag/Kconfig.soc
index 50f979c2b02d..c521f0e00d8e 100644
--- a/arch/metag/Kconfig.soc
+++ b/arch/metag/Kconfig.soc
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "SoC Type"
 	default META21_FPGA
diff --git a/arch/metag/boot/dts/Makefile b/arch/metag/boot/dts/Makefile
index 097c6da4547f..ad5dde558db1 100644
--- a/arch/metag/boot/dts/Makefile
+++ b/arch/metag/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-y	+= skeleton.dtb
 dtb-y	+= tz1090_generic.dtb
 
diff --git a/arch/metag/boot/dts/skeleton.dtsi b/arch/metag/boot/dts/skeleton.dtsi
index 78229eacced7..43e2ffe73c27 100644
--- a/arch/metag/boot/dts/skeleton.dtsi
+++ b/arch/metag/boot/dts/skeleton.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Skeleton device tree; the bare minimum needed to boot; just include and
  * add a compatible value.  The bootloader will typically populate the memory
diff --git a/arch/metag/include/asm/atomic.h b/arch/metag/include/asm/atomic.h
index 8ff0a70865f6..97ae189c2dd8 100644
--- a/arch/metag/include/asm/atomic.h
+++ b/arch/metag/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_ATOMIC_H
 #define __ASM_METAG_ATOMIC_H
 
diff --git a/arch/metag/include/asm/atomic_lnkget.h b/arch/metag/include/asm/atomic_lnkget.h
index def2c642f053..17e8c61c946d 100644
--- a/arch/metag/include/asm/atomic_lnkget.h
+++ b/arch/metag/include/asm/atomic_lnkget.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_ATOMIC_LNKGET_H
 #define __ASM_METAG_ATOMIC_LNKGET_H
 
diff --git a/arch/metag/include/asm/atomic_lock1.h b/arch/metag/include/asm/atomic_lock1.h
index eee779f26cc4..2ce8fa3a79c2 100644
--- a/arch/metag/include/asm/atomic_lock1.h
+++ b/arch/metag/include/asm/atomic_lock1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_ATOMIC_LOCK1_H
 #define __ASM_METAG_ATOMIC_LOCK1_H
 
diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h
index 5418517aa5eb..2661fec5696a 100644
--- a/arch/metag/include/asm/barrier.h
+++ b/arch/metag/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_BARRIER_H
 #define _ASM_METAG_BARRIER_H
 
diff --git a/arch/metag/include/asm/bitops.h b/arch/metag/include/asm/bitops.h
index 2671134ee745..766ad43010ad 100644
--- a/arch/metag/include/asm/bitops.h
+++ b/arch/metag/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_BITOPS_H
 #define __ASM_METAG_BITOPS_H
 
diff --git a/arch/metag/include/asm/bug.h b/arch/metag/include/asm/bug.h
index 9f8967f10f8c..ee07a943f931 100644
--- a/arch/metag/include/asm/bug.h
+++ b/arch/metag/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_BUG_H
 #define _ASM_METAG_BUG_H
 
diff --git a/arch/metag/include/asm/cache.h b/arch/metag/include/asm/cache.h
index a43b650cfdc0..b5df02239c8d 100644
--- a/arch/metag/include/asm/cache.h
+++ b/arch/metag/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_CACHE_H
 #define __ASM_METAG_CACHE_H
 
diff --git a/arch/metag/include/asm/cacheflush.h b/arch/metag/include/asm/cacheflush.h
index 7787ec5e3ed0..2584a51eca1a 100644
--- a/arch/metag/include/asm/cacheflush.h
+++ b/arch/metag/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_CACHEFLUSH_H
 #define _METAG_CACHEFLUSH_H
 
diff --git a/arch/metag/include/asm/cachepart.h b/arch/metag/include/asm/cachepart.h
index cf6b44e916b5..79411e977586 100644
--- a/arch/metag/include/asm/cachepart.h
+++ b/arch/metag/include/asm/cachepart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Meta cache partition manipulation.
  *
diff --git a/arch/metag/include/asm/checksum.h b/arch/metag/include/asm/checksum.h
index f65fe83b1730..6533d14e9789 100644
--- a/arch/metag/include/asm/checksum.h
+++ b/arch/metag/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_CHECKSUM_H
 #define _METAG_CHECKSUM_H
 
diff --git a/arch/metag/include/asm/cmpxchg.h b/arch/metag/include/asm/cmpxchg.h
index be29e3e44321..68c4ab1466fd 100644
--- a/arch/metag/include/asm/cmpxchg.h
+++ b/arch/metag/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_CMPXCHG_H
 #define __ASM_METAG_CMPXCHG_H
 
diff --git a/arch/metag/include/asm/cmpxchg_irq.h b/arch/metag/include/asm/cmpxchg_irq.h
index 649573168b05..5255e37f8496 100644
--- a/arch/metag/include/asm/cmpxchg_irq.h
+++ b/arch/metag/include/asm/cmpxchg_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_CMPXCHG_IRQ_H
 #define __ASM_METAG_CMPXCHG_IRQ_H
 
diff --git a/arch/metag/include/asm/cmpxchg_lnkget.h b/arch/metag/include/asm/cmpxchg_lnkget.h
index 2369ad394876..c69be00a4739 100644
--- a/arch/metag/include/asm/cmpxchg_lnkget.h
+++ b/arch/metag/include/asm/cmpxchg_lnkget.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_CMPXCHG_LNKGET_H
 #define __ASM_METAG_CMPXCHG_LNKGET_H
 
diff --git a/arch/metag/include/asm/cmpxchg_lock1.h b/arch/metag/include/asm/cmpxchg_lock1.h
index fd6850474969..5976e39db2b4 100644
--- a/arch/metag/include/asm/cmpxchg_lock1.h
+++ b/arch/metag/include/asm/cmpxchg_lock1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_CMPXCHG_LOCK1_H
 #define __ASM_METAG_CMPXCHG_LOCK1_H
 
diff --git a/arch/metag/include/asm/core_reg.h b/arch/metag/include/asm/core_reg.h
index bdbc3a51f31c..ca70a0a29b61 100644
--- a/arch/metag/include/asm/core_reg.h
+++ b/arch/metag/include/asm/core_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_CORE_REG_H_
 #define __ASM_METAG_CORE_REG_H_
 
diff --git a/arch/metag/include/asm/cpu.h b/arch/metag/include/asm/cpu.h
index decf12969268..9dac67de4748 100644
--- a/arch/metag/include/asm/cpu.h
+++ b/arch/metag/include/asm/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_CPU_H
 #define _ASM_METAG_CPU_H
 
diff --git a/arch/metag/include/asm/da.h b/arch/metag/include/asm/da.h
index 81bd5212fb03..901daa540e6e 100644
--- a/arch/metag/include/asm/da.h
+++ b/arch/metag/include/asm/da.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Meta DA JTAG debugger control.
  *
diff --git a/arch/metag/include/asm/delay.h b/arch/metag/include/asm/delay.h
index 9c92f996957a..fd73d3d5d294 100644
--- a/arch/metag/include/asm/delay.h
+++ b/arch/metag/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_DELAY_H
 #define _METAG_DELAY_H
 
diff --git a/arch/metag/include/asm/div64.h b/arch/metag/include/asm/div64.h
index 0fdd11676212..e3686d2ae20e 100644
--- a/arch/metag/include/asm/div64.h
+++ b/arch/metag/include/asm/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_DIV64_H__
 #define __ASM_DIV64_H__
 
diff --git a/arch/metag/include/asm/dma-mapping.h b/arch/metag/include/asm/dma-mapping.h
index ea573be2b6d0..7465ce54a4a9 100644
--- a/arch/metag/include/asm/dma-mapping.h
+++ b/arch/metag/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_DMA_MAPPING_H
 #define _ASM_METAG_DMA_MAPPING_H
 
diff --git a/arch/metag/include/asm/elf.h b/arch/metag/include/asm/elf.h
index 87b0cf1e0acb..a6c33800ba66 100644
--- a/arch/metag/include/asm/elf.h
+++ b/arch/metag/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_ELF_H
 #define __ASM_METAG_ELF_H
 
diff --git a/arch/metag/include/asm/ftrace.h b/arch/metag/include/asm/ftrace.h
index a2269d60a945..b1c8c76fb772 100644
--- a/arch/metag/include/asm/ftrace.h
+++ b/arch/metag/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_FTRACE
 #define _ASM_METAG_FTRACE
 
diff --git a/arch/metag/include/asm/global_lock.h b/arch/metag/include/asm/global_lock.h
index fc831c88c22a..4d3da9682233 100644
--- a/arch/metag/include/asm/global_lock.h
+++ b/arch/metag/include/asm/global_lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_GLOBAL_LOCK_H
 #define __ASM_METAG_GLOBAL_LOCK_H
 
diff --git a/arch/metag/include/asm/highmem.h b/arch/metag/include/asm/highmem.h
index 9b1d172cd884..8b0dfd684e15 100644
--- a/arch/metag/include/asm/highmem.h
+++ b/arch/metag/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HIGHMEM_H
 #define _ASM_HIGHMEM_H
 
diff --git a/arch/metag/include/asm/hugetlb.h b/arch/metag/include/asm/hugetlb.h
index 905ed422dbeb..1607363d2639 100644
--- a/arch/metag/include/asm/hugetlb.h
+++ b/arch/metag/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_HUGETLB_H
 #define _ASM_METAG_HUGETLB_H
 
diff --git a/arch/metag/include/asm/hwthread.h b/arch/metag/include/asm/hwthread.h
index 8f9786619b1d..8d2171da5414 100644
--- a/arch/metag/include/asm/hwthread.h
+++ b/arch/metag/include/asm/hwthread.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2008 Imagination Technologies
  */
diff --git a/arch/metag/include/asm/io.h b/arch/metag/include/asm/io.h
index 9890f21eadbe..71cd2bc54718 100644
--- a/arch/metag/include/asm/io.h
+++ b/arch/metag/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_IO_H
 #define _ASM_METAG_IO_H
 
diff --git a/arch/metag/include/asm/irq.h b/arch/metag/include/asm/irq.h
index 6ac6d4a051dd..cb02c29935a4 100644
--- a/arch/metag/include/asm/irq.h
+++ b/arch/metag/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_IRQ_H
 #define __ASM_METAG_IRQ_H
 
diff --git a/arch/metag/include/asm/irqflags.h b/arch/metag/include/asm/irqflags.h
index 339b16f062eb..e2fe34acb93b 100644
--- a/arch/metag/include/asm/irqflags.h
+++ b/arch/metag/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IRQ flags handling
  *
diff --git a/arch/metag/include/asm/l2cache.h b/arch/metag/include/asm/l2cache.h
index bffbeaa4d93b..f260b158b8fe 100644
--- a/arch/metag/include/asm/l2cache.h
+++ b/arch/metag/include/asm/l2cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_L2CACHE_H
 #define _METAG_L2CACHE_H
 
diff --git a/arch/metag/include/asm/linkage.h b/arch/metag/include/asm/linkage.h
index 73bf25ba4e18..3a9024ecb827 100644
--- a/arch/metag/include/asm/linkage.h
+++ b/arch/metag/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/metag/include/asm/mman.h b/arch/metag/include/asm/mman.h
index 17999dba9275..dcb0d20a64fd 100644
--- a/arch/metag/include/asm/mman.h
+++ b/arch/metag/include/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __METAG_MMAN_H__
 #define __METAG_MMAN_H__
 
diff --git a/arch/metag/include/asm/mmu.h b/arch/metag/include/asm/mmu.h
index 9c321147c0b4..cab5a01c3dcb 100644
--- a/arch/metag/include/asm/mmu.h
+++ b/arch/metag/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/metag/include/asm/mmu_context.h b/arch/metag/include/asm/mmu_context.h
index 2e0312748197..7b4766379622 100644
--- a/arch/metag/include/asm/mmu_context.h
+++ b/arch/metag/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __METAG_MMU_CONTEXT_H
 #define __METAG_MMU_CONTEXT_H
 
diff --git a/arch/metag/include/asm/mmzone.h b/arch/metag/include/asm/mmzone.h
index 9c88a9c65f59..8627fb532206 100644
--- a/arch/metag/include/asm/mmzone.h
+++ b/arch/metag/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_MMZONE_H
 #define __ASM_METAG_MMZONE_H
 
diff --git a/arch/metag/include/asm/module.h b/arch/metag/include/asm/module.h
index e47e60941b2b..e957171c320b 100644
--- a/arch/metag/include/asm/module.h
+++ b/arch/metag/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_MODULE_H
 #define _ASM_METAG_MODULE_H
 
diff --git a/arch/metag/include/asm/page.h b/arch/metag/include/asm/page.h
index 1e8e281b8bb7..9e994d77069d 100644
--- a/arch/metag/include/asm/page.h
+++ b/arch/metag/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_PAGE_H
 #define _METAG_PAGE_H
 
diff --git a/arch/metag/include/asm/pgalloc.h b/arch/metag/include/asm/pgalloc.h
index c2caa1ee4360..0b9d95d78b61 100644
--- a/arch/metag/include/asm/pgalloc.h
+++ b/arch/metag/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_PGALLOC_H
 #define _METAG_PGALLOC_H
 
diff --git a/arch/metag/include/asm/pgtable-bits.h b/arch/metag/include/asm/pgtable-bits.h
index 25ba6729f496..5f6b82282a41 100644
--- a/arch/metag/include/asm/pgtable-bits.h
+++ b/arch/metag/include/asm/pgtable-bits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Meta page table definitions.
  */
diff --git a/arch/metag/include/asm/pgtable.h b/arch/metag/include/asm/pgtable.h
index 0c151e5af079..a3422f06c03b 100644
--- a/arch/metag/include/asm/pgtable.h
+++ b/arch/metag/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Macros and functions to manipulate Meta page tables.
  */
diff --git a/arch/metag/include/asm/processor.h b/arch/metag/include/asm/processor.h
index ec6a49076980..9a0c502cd4a0 100644
--- a/arch/metag/include/asm/processor.h
+++ b/arch/metag/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2005,2006,2007,2008 Imagination Technologies
  */
@@ -131,9 +132,6 @@ static inline void release_thread(struct task_struct *dead_task)
 {
 }
 
-#define copy_segments(tsk, mm)		do { } while (0)
-#define release_segments(mm)		do { } while (0)
-
 /*
  * Return saved PC of a blocked thread.
  */
diff --git a/arch/metag/include/asm/ptrace.h b/arch/metag/include/asm/ptrace.h
index fcabc18daf25..9074f254c9ca 100644
--- a/arch/metag/include/asm/ptrace.h
+++ b/arch/metag/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_PTRACE_H
 #define _METAG_PTRACE_H
 
diff --git a/arch/metag/include/asm/setup.h b/arch/metag/include/asm/setup.h
index e9fdee9452b1..504621d79ef5 100644
--- a/arch/metag/include/asm/setup.h
+++ b/arch/metag/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_SETUP_H
 #define _ASM_METAG_SETUP_H
 
diff --git a/arch/metag/include/asm/smp.h b/arch/metag/include/asm/smp.h
index 1d7e770f7a54..8d3683d83680 100644
--- a/arch/metag/include/asm/smp.h
+++ b/arch/metag/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
diff --git a/arch/metag/include/asm/sparsemem.h b/arch/metag/include/asm/sparsemem.h
index 03fe255d697a..2942894bace5 100644
--- a/arch/metag/include/asm/sparsemem.h
+++ b/arch/metag/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_SPARSEMEM_H
 #define __ASM_METAG_SPARSEMEM_H
 
diff --git a/arch/metag/include/asm/spinlock.h b/arch/metag/include/asm/spinlock.h
index ddf7fe5708a6..4497c232d9c1 100644
--- a/arch/metag/include/asm/spinlock.h
+++ b/arch/metag/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
@@ -15,13 +16,4 @@
  * locked.
  */
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
-#define	arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define	arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/metag/include/asm/spinlock_lnkget.h b/arch/metag/include/asm/spinlock_lnkget.h
index ad8436feed8d..dfd780eab350 100644
--- a/arch/metag/include/asm/spinlock_lnkget.h
+++ b/arch/metag/include/asm/spinlock_lnkget.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_LNKGET_H
 #define __ASM_SPINLOCK_LNKGET_H
 
@@ -136,21 +137,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 		      : "memory");
 }
 
-/* write_can_lock - would write_trylock() succeed? */
-static inline int arch_write_can_lock(arch_rwlock_t *rw)
-{
-	int ret;
-
-	asm volatile ("LNKGETD	%0, [%1]\n"
-		      "CMP	%0, #0\n"
-		      "MOV	%0, #1\n"
-		      "XORNZ     %0, %0, %0\n"
-		      : "=&d" (ret)
-		      : "da" (&rw->lock)
-		      : "cc");
-	return ret;
-}
-
 /*
  * Read locks are a bit more hairy:
  *  - Exclusively load the lock value.
@@ -224,26 +210,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 	return tmp;
 }
 
-/* read_can_lock - would read_trylock() succeed? */
-static inline int arch_read_can_lock(arch_rwlock_t *rw)
-{
-	int tmp;
-
-	asm volatile ("LNKGETD	%0, [%1]\n"
-		      "CMP	%0, %2\n"
-		      "MOV	%0, #1\n"
-		      "XORZ	%0, %0, %0\n"
-		      : "=&d" (tmp)
-		      : "da" (&rw->lock), "bd" (0x80000000)
-		      : "cc");
-	return tmp;
-}
-
-#define	arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define	arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* __ASM_SPINLOCK_LNKGET_H */
diff --git a/arch/metag/include/asm/spinlock_lock1.h b/arch/metag/include/asm/spinlock_lock1.h
index c630444cffe9..c0bd81bbe18c 100644
--- a/arch/metag/include/asm/spinlock_lock1.h
+++ b/arch/metag/include/asm/spinlock_lock1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_LOCK1_H
 #define __ASM_SPINLOCK_LOCK1_H
 
@@ -104,16 +105,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 	rw->lock = 0;
 }
 
-/* write_can_lock - would write_trylock() succeed? */
-static inline int arch_write_can_lock(arch_rwlock_t *rw)
-{
-	unsigned int ret;
-
-	barrier();
-	ret = rw->lock;
-	return (ret == 0);
-}
-
 /*
  * Read locks are a bit more hairy:
  *  - Exclusively load the lock value.
@@ -171,14 +162,4 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 	return (ret < 0x80000000);
 }
 
-/* read_can_lock - would read_trylock() succeed? */
-static inline int arch_read_can_lock(arch_rwlock_t *rw)
-{
-	unsigned int ret;
-
-	barrier();
-	ret = rw->lock;
-	return (ret < 0x80000000);
-}
-
 #endif /* __ASM_SPINLOCK_LOCK1_H */
diff --git a/arch/metag/include/asm/spinlock_types.h b/arch/metag/include/asm/spinlock_types.h
index b76391405fea..cd197f1bed59 100644
--- a/arch/metag/include/asm/spinlock_types.h
+++ b/arch/metag/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_SPINLOCK_TYPES_H
 #define _ASM_METAG_SPINLOCK_TYPES_H
 
diff --git a/arch/metag/include/asm/stacktrace.h b/arch/metag/include/asm/stacktrace.h
index 2830a0fe7ac9..f45e3cb2bbb5 100644
--- a/arch/metag/include/asm/stacktrace.h
+++ b/arch/metag/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_STACKTRACE_H
 #define __ASM_STACKTRACE_H
 
diff --git a/arch/metag/include/asm/string.h b/arch/metag/include/asm/string.h
index 53e3806eee04..86f9614d5fc6 100644
--- a/arch/metag/include/asm/string.h
+++ b/arch/metag/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_STRING_H_
 #define _METAG_STRING_H_
 
diff --git a/arch/metag/include/asm/syscalls.h b/arch/metag/include/asm/syscalls.h
index a02b95556522..eac0cf120323 100644
--- a/arch/metag/include/asm/syscalls.h
+++ b/arch/metag/include/asm/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_SYSCALLS_H
 #define _ASM_METAG_SYSCALLS_H
 
diff --git a/arch/metag/include/asm/tcm.h b/arch/metag/include/asm/tcm.h
index 7711c317b1d2..a0a4997e4b8a 100644
--- a/arch/metag/include/asm/tcm.h
+++ b/arch/metag/include/asm/tcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TCM_H__
 #define __ASM_TCM_H__
 
diff --git a/arch/metag/include/asm/thread_info.h b/arch/metag/include/asm/thread_info.h
index 32677cc278aa..554f73a77e6e 100644
--- a/arch/metag/include/asm/thread_info.h
+++ b/arch/metag/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: Meta low-level thread information
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
diff --git a/arch/metag/include/asm/tlb.h b/arch/metag/include/asm/tlb.h
index 048282f1cc1f..fbe6ee91e8e7 100644
--- a/arch/metag/include/asm/tlb.h
+++ b/arch/metag/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_TLB_H
 #define __ASM_METAG_TLB_H
 
diff --git a/arch/metag/include/asm/tlbflush.h b/arch/metag/include/asm/tlbflush.h
index 566acf918a64..f3e5d99a3891 100644
--- a/arch/metag/include/asm/tlbflush.h
+++ b/arch/metag/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_METAG_TLBFLUSH_H
 #define __ASM_METAG_TLBFLUSH_H
 
diff --git a/arch/metag/include/asm/topology.h b/arch/metag/include/asm/topology.h
index 707c7f7b6bea..df0d9e6b7f12 100644
--- a/arch/metag/include/asm/topology.h
+++ b/arch/metag/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_METAG_TOPOLOGY_H
 #define _ASM_METAG_TOPOLOGY_H
 
diff --git a/arch/metag/include/asm/uaccess.h b/arch/metag/include/asm/uaccess.h
index 47469e26641a..a5311eb36e32 100644
--- a/arch/metag/include/asm/uaccess.h
+++ b/arch/metag/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __METAG_UACCESS_H
 #define __METAG_UACCESS_H
 
diff --git a/arch/metag/include/asm/user_gateway.h b/arch/metag/include/asm/user_gateway.h
index e404c09e3b74..cf2392b95a56 100644
--- a/arch/metag/include/asm/user_gateway.h
+++ b/arch/metag/include/asm/user_gateway.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2010 Imagination Technologies
  */
diff --git a/arch/metag/include/uapi/asm/byteorder.h b/arch/metag/include/uapi/asm/byteorder.h
index 9558416d578b..e5e03ff7e20d 100644
--- a/arch/metag/include/uapi/asm/byteorder.h
+++ b/arch/metag/include/uapi/asm/byteorder.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <linux/byteorder/little_endian.h>
diff --git a/arch/metag/include/uapi/asm/ech.h b/arch/metag/include/uapi/asm/ech.h
index ac94d1cf9be4..1e09f1ea4f7f 100644
--- a/arch/metag/include/uapi/asm/ech.h
+++ b/arch/metag/include/uapi/asm/ech.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_METAG_ECH_H
 #define _UAPI_METAG_ECH_H
 
diff --git a/arch/metag/include/uapi/asm/ptrace.h b/arch/metag/include/uapi/asm/ptrace.h
index 45d97809d33e..8ad9daa841c3 100644
--- a/arch/metag/include/uapi/asm/ptrace.h
+++ b/arch/metag/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_METAG_PTRACE_H
 #define _UAPI_METAG_PTRACE_H
 
diff --git a/arch/metag/include/uapi/asm/sigcontext.h b/arch/metag/include/uapi/asm/sigcontext.h
index ef79a910c1c4..ac7e1f28d584 100644
--- a/arch/metag/include/uapi/asm/sigcontext.h
+++ b/arch/metag/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_METAG_SIGCONTEXT_H
 #define _ASM_METAG_SIGCONTEXT_H
 
diff --git a/arch/metag/include/uapi/asm/siginfo.h b/arch/metag/include/uapi/asm/siginfo.h
index b2e0c8b62aef..b54ef7186ca3 100644
--- a/arch/metag/include/uapi/asm/siginfo.h
+++ b/arch/metag/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _METAG_SIGINFO_H
 #define _METAG_SIGINFO_H
 
diff --git a/arch/metag/include/uapi/asm/swab.h b/arch/metag/include/uapi/asm/swab.h
index 1076b3a6387a..30d696fcc237 100644
--- a/arch/metag/include/uapi/asm/swab.h
+++ b/arch/metag/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_METAG_SWAB_H
 #define __ASM_METAG_SWAB_H
 
diff --git a/arch/metag/include/uapi/asm/unistd.h b/arch/metag/include/uapi/asm/unistd.h
index 459b6ec15848..9f72c4cfcfb5 100644
--- a/arch/metag/include/uapi/asm/unistd.h
+++ b/arch/metag/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 Imagination Technologies Ltd.
  *
diff --git a/arch/metag/kernel/Makefile b/arch/metag/kernel/Makefile
index d7675f4a5df8..73441d8c0369 100644
--- a/arch/metag/kernel/Makefile
+++ b/arch/metag/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/Meta kernel.
 #
diff --git a/arch/metag/kernel/asm-offsets.c b/arch/metag/kernel/asm-offsets.c
index bfc9205f9647..d9b348b99ff2 100644
--- a/arch/metag/kernel/asm-offsets.c
+++ b/arch/metag/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This program is used to generate definitions needed by
  * assembly language modules.
diff --git a/arch/metag/kernel/cachepart.c b/arch/metag/kernel/cachepart.c
index db944c2e7d88..6e0f8a80cc96 100644
--- a/arch/metag/kernel/cachepart.c
+++ b/arch/metag/kernel/cachepart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Meta cache partition manipulation.
  *
diff --git a/arch/metag/kernel/core_reg.c b/arch/metag/kernel/core_reg.c
index 671cce8c34f2..df2833f2766f 100644
--- a/arch/metag/kernel/core_reg.c
+++ b/arch/metag/kernel/core_reg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Support for reading and writing Meta core internal registers.
  *
diff --git a/arch/metag/kernel/head.S b/arch/metag/kernel/head.S
index 713f71d1bdfe..3ed27813413e 100644
--- a/arch/metag/kernel/head.S
+++ b/arch/metag/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	! Copyright 2005,2006,2007,2009 Imagination Technologies
 
 #include <linux/init.h>
diff --git a/arch/metag/kernel/irq.c b/arch/metag/kernel/irq.c
index c9939604a38f..704cf17f8370 100644
--- a/arch/metag/kernel/irq.c
+++ b/arch/metag/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux/Meta general interrupt handling code
  *
diff --git a/arch/metag/kernel/machines.c b/arch/metag/kernel/machines.c
index 1edf6ba193b1..e49790181051 100644
--- a/arch/metag/kernel/machines.c
+++ b/arch/metag/kernel/machines.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/metag/kernel/machines.c
  *
diff --git a/arch/metag/kernel/metag_ksyms.c b/arch/metag/kernel/metag_ksyms.c
index 215c94ad63ac..e312386efb72 100644
--- a/arch/metag/kernel/metag_ksyms.c
+++ b/arch/metag/kernel/metag_ksyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/types.h>
 
diff --git a/arch/metag/kernel/perf_callchain.c b/arch/metag/kernel/perf_callchain.c
index 3e8e048040df..d325ba101de0 100644
--- a/arch/metag/kernel/perf_callchain.c
+++ b/arch/metag/kernel/perf_callchain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Perf callchain handling code.
  *
diff --git a/arch/metag/kernel/process.c b/arch/metag/kernel/process.c
index c4606ce743d2..0909834c83a7 100644
--- a/arch/metag/kernel/process.c
+++ b/arch/metag/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005,2006,2007,2008,2009,2010,2011 Imagination Technologies
  *
diff --git a/arch/metag/kernel/signal.c b/arch/metag/kernel/signal.c
index 338925d808e6..e64e8b0a9363 100644
--- a/arch/metag/kernel/signal.c
+++ b/arch/metag/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991,1992  Linus Torvalds
  *  Copyright (C) 2005-2012  Imagination Technologies Ltd.
diff --git a/arch/metag/kernel/sys_metag.c b/arch/metag/kernel/sys_metag.c
index efe833a452f7..27d96499dd38 100644
--- a/arch/metag/kernel/sys_metag.c
+++ b/arch/metag/kernel/sys_metag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains various random system calls that
  * have a non-standard calling sequence on the Linux/Meta
diff --git a/arch/metag/kernel/tbiunexp.S b/arch/metag/kernel/tbiunexp.S
index 907bbe0b2e68..2664808086c7 100644
--- a/arch/metag/kernel/tbiunexp.S
+++ b/arch/metag/kernel/tbiunexp.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Pass a breakpoint through to Codescape */
 
 #include <asm/tbx.h>
diff --git a/arch/metag/kernel/tcm.c b/arch/metag/kernel/tcm.c
index 5d102b31ce84..1d7b4e33b114 100644
--- a/arch/metag/kernel/tcm.c
+++ b/arch/metag/kernel/tcm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2010 Imagination Technologies Ltd.
  */
diff --git a/arch/metag/kernel/time.c b/arch/metag/kernel/time.c
index f1c8c53dace7..1e809e3b43d1 100644
--- a/arch/metag/kernel/time.c
+++ b/arch/metag/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2013 Imagination Technologies Ltd.
  *
diff --git a/arch/metag/kernel/user_gateway.S b/arch/metag/kernel/user_gateway.S
index 7167f3e8db6b..7833fb8f9ddd 100644
--- a/arch/metag/kernel/user_gateway.S
+++ b/arch/metag/kernel/user_gateway.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2010 Imagination Technologies Ltd.
  *
diff --git a/arch/metag/kernel/vmlinux.lds.S b/arch/metag/kernel/vmlinux.lds.S
index e6c700eaf207..1efadae2ea8e 100644
--- a/arch/metag/kernel/vmlinux.lds.S
+++ b/arch/metag/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make Meta Linux kernel */
 
 #include <asm/thread_info.h>
diff --git a/arch/metag/lib/Makefile b/arch/metag/lib/Makefile
index a41d24e270e6..3982850d692c 100644
--- a/arch/metag/lib/Makefile
+++ b/arch/metag/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Meta-specific library files.
 #
diff --git a/arch/metag/lib/ashldi3.S b/arch/metag/lib/ashldi3.S
index 78d6974cffef..5055df9e5c7b 100644
--- a/arch/metag/lib/ashldi3.S
+++ b/arch/metag/lib/ashldi3.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 by Imagination Technologies Ltd.
 !
 ! 64-bit arithmetic shift left routine.
diff --git a/arch/metag/lib/ashrdi3.S b/arch/metag/lib/ashrdi3.S
index 7cb7ed3bb1ad..0c838fd9da85 100644
--- a/arch/metag/lib/ashrdi3.S
+++ b/arch/metag/lib/ashrdi3.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 by Imagination Technologies Ltd.
 !
 ! 64-bit arithmetic shift right routine.
diff --git a/arch/metag/lib/clear_page.S b/arch/metag/lib/clear_page.S
index 43144eebec55..87756a5d1367 100644
--- a/arch/metag/lib/clear_page.S
+++ b/arch/metag/lib/clear_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
         ! Copyright 2007,2008,2009 Imagination Technologies Ltd.
 
 #include <asm/page.h>
diff --git a/arch/metag/lib/cmpdi2.S b/arch/metag/lib/cmpdi2.S
index 9c5c663c5aea..ab70bd94fd81 100644
--- a/arch/metag/lib/cmpdi2.S
+++ b/arch/metag/lib/cmpdi2.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 by Imagination Technologies Ltd.
 !
 ! 64-bit signed compare routine.
diff --git a/arch/metag/lib/copy_page.S b/arch/metag/lib/copy_page.S
index 91f7d461239c..abbc75e94374 100644
--- a/arch/metag/lib/copy_page.S
+++ b/arch/metag/lib/copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
         ! Copyright 2007,2008 Imagination Technologies Ltd.
 
 #include <asm/page.h>
diff --git a/arch/metag/lib/delay.c b/arch/metag/lib/delay.c
index 0b308f48b37a..6754012a261f 100644
--- a/arch/metag/lib/delay.c
+++ b/arch/metag/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Precise Delay Loops for Meta
  *
diff --git a/arch/metag/lib/div64.S b/arch/metag/lib/div64.S
index 1cfc93498f70..55eece273a6b 100644
--- a/arch/metag/lib/div64.S
+++ b/arch/metag/lib/div64.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 Imagination Technologies Ltd.
 !
 ! Signed/unsigned 64-bit division routines.
diff --git a/arch/metag/lib/divsi3.S b/arch/metag/lib/divsi3.S
index 11124cc93dee..9e31abefb160 100644
--- a/arch/metag/lib/divsi3.S
+++ b/arch/metag/lib/divsi3.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
 !               Imagination Technologies Ltd
 !
diff --git a/arch/metag/lib/ip_fast_csum.S b/arch/metag/lib/ip_fast_csum.S
index 533b1e73deac..441f489d6a81 100644
--- a/arch/metag/lib/ip_fast_csum.S
+++ b/arch/metag/lib/ip_fast_csum.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 	.text
 /*
diff --git a/arch/metag/lib/lshrdi3.S b/arch/metag/lib/lshrdi3.S
index 47f720283077..cf7ffc9b377f 100644
--- a/arch/metag/lib/lshrdi3.S
+++ b/arch/metag/lib/lshrdi3.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 by Imagination Technologies Ltd.
 !
 ! 64-bit logical shift right routine.
diff --git a/arch/metag/lib/memcpy.S b/arch/metag/lib/memcpy.S
index 46b7a2b9479e..c2e8395f9456 100644
--- a/arch/metag/lib/memcpy.S
+++ b/arch/metag/lib/memcpy.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 !   Copyright (C) 2008-2012 Imagination Technologies Ltd.
 
 	.text
diff --git a/arch/metag/lib/memmove.S b/arch/metag/lib/memmove.S
index 228ea04d7b39..934abda0e680 100644
--- a/arch/metag/lib/memmove.S
+++ b/arch/metag/lib/memmove.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 !   Copyright (C) 2008-2012 Imagination Technologies Ltd.
 
 	.text
diff --git a/arch/metag/lib/memset.S b/arch/metag/lib/memset.S
index 721085bad1d2..6ee246d831c7 100644
--- a/arch/metag/lib/memset.S
+++ b/arch/metag/lib/memset.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 !   Copyright (C) 2008-2012 Imagination Technologies Ltd.
 
 	.text
diff --git a/arch/metag/lib/modsi3.S b/arch/metag/lib/modsi3.S
index 210cfa856593..d65a2e5b3154 100644
--- a/arch/metag/lib/modsi3.S
+++ b/arch/metag/lib/modsi3.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
 !               Imagination Technologies Ltd
 !
diff --git a/arch/metag/lib/muldi3.S b/arch/metag/lib/muldi3.S
index ee66ca8644d0..9d106790244d 100644
--- a/arch/metag/lib/muldi3.S
+++ b/arch/metag/lib/muldi3.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 by Imagination Technologies Ltd.
 !
 ! 64-bit multiply routine.
diff --git a/arch/metag/lib/ucmpdi2.S b/arch/metag/lib/ucmpdi2.S
index 6f3347f7daeb..46f5686db8b1 100644
--- a/arch/metag/lib/ucmpdi2.S
+++ b/arch/metag/lib/ucmpdi2.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! Copyright (C) 2012 by Imagination Technologies Ltd.
 !
 ! 64-bit unsigned compare routine.
diff --git a/arch/metag/lib/usercopy.c b/arch/metag/lib/usercopy.c
index c941abdb8f85..a48ef522c02d 100644
--- a/arch/metag/lib/usercopy.c
+++ b/arch/metag/lib/usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * User address space access functions.
  * The non-inlined parts of asm-metag/uaccess.h are here.
diff --git a/arch/metag/mm/Kconfig b/arch/metag/mm/Kconfig
index 03fb8f1555a1..9d4b2c67dcc1 100644
--- a/arch/metag/mm/Kconfig
+++ b/arch/metag/mm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Memory management options"
 
 config PAGE_OFFSET
diff --git a/arch/metag/mm/Makefile b/arch/metag/mm/Makefile
index 994331164125..0c7c91ba9fb9 100644
--- a/arch/metag/mm/Makefile
+++ b/arch/metag/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux Meta-specific parts of the memory manager.
 #
diff --git a/arch/metag/mm/extable.c b/arch/metag/mm/extable.c
index 3aa90b78b43d..9b92d3ad7f9c 100644
--- a/arch/metag/mm/extable.c
+++ b/arch/metag/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/extable.h>
 #include <linux/uaccess.h>
 
diff --git a/arch/metag/mm/fault.c b/arch/metag/mm/fault.c
index 5055477486b6..de54fe686080 100644
--- a/arch/metag/mm/fault.c
+++ b/arch/metag/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Meta page fault handling.
  *
diff --git a/arch/metag/mm/highmem.c b/arch/metag/mm/highmem.c
index f19a87f2c1ec..83527fc7c8a7 100644
--- a/arch/metag/mm/highmem.c
+++ b/arch/metag/mm/highmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/highmem.h>
 #include <linux/sched.h>
diff --git a/arch/metag/mm/hugetlbpage.c b/arch/metag/mm/hugetlbpage.c
index 67fd53e2935a..012ee4c80dc7 100644
--- a/arch/metag/mm/hugetlbpage.c
+++ b/arch/metag/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/metag/mm/hugetlbpage.c
  *
diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index 188d4d9fbed4..0e2ca9058998 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005,2006,2007,2008,2009,2010 Imagination Technologies
  *
diff --git a/arch/metag/mm/ioremap.c b/arch/metag/mm/ioremap.c
index a136a435fdaa..df2b59cb02eb 100644
--- a/arch/metag/mm/ioremap.c
+++ b/arch/metag/mm/ioremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Re-map IO memory to kernel address space so that we can access it.
  * Needed for memory-mapped I/O devices mapped outside our normal DRAM
diff --git a/arch/metag/mm/l2cache.c b/arch/metag/mm/l2cache.c
index c64ee615cf90..addffc58989c 100644
--- a/arch/metag/mm/l2cache.c
+++ b/arch/metag/mm/l2cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/delay.h>
diff --git a/arch/metag/mm/maccess.c b/arch/metag/mm/maccess.c
index eba2cfc935b1..c22755165df9 100644
--- a/arch/metag/mm/maccess.c
+++ b/arch/metag/mm/maccess.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * safe read and write memory routines callable while atomic
  *
diff --git a/arch/metag/mm/mmu-meta1.c b/arch/metag/mm/mmu-meta1.c
index 62ebab90924d..53190b13dc54 100644
--- a/arch/metag/mm/mmu-meta1.c
+++ b/arch/metag/mm/mmu-meta1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005,2006,2007,2008,2009 Imagination Technologies
  *
diff --git a/arch/metag/mm/mmu-meta2.c b/arch/metag/mm/mmu-meta2.c
index 81dcbb0bba34..8b668a69c980 100644
--- a/arch/metag/mm/mmu-meta2.c
+++ b/arch/metag/mm/mmu-meta2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2008,2009,2010,2011 Imagination Technologies Ltd.
  *
diff --git a/arch/metag/oprofile/Makefile b/arch/metag/oprofile/Makefile
index c9639d4734d6..dc92a4a3d618 100644
--- a/arch/metag/oprofile/Makefile
+++ b/arch/metag/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE)	+= oprofile.o
 
 oprofile-core-y	+= buffer_sync.o
diff --git a/arch/metag/oprofile/backtrace.h b/arch/metag/oprofile/backtrace.h
index c0fcc4265abb..60adb862aa2c 100644
--- a/arch/metag/oprofile/backtrace.h
+++ b/arch/metag/oprofile/backtrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METAG_OPROFILE_BACKTRACE_H
 #define _METAG_OPROFILE_BACKTRACE_H
 
diff --git a/arch/metag/tbx/Makefile b/arch/metag/tbx/Makefile
index e994239e518c..98bc5453cf24 100644
--- a/arch/metag/tbx/Makefile
+++ b/arch/metag/tbx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for TBX library files..
 #
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 9d26abdf0dc1..4f798aa671dd 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -39,7 +39,7 @@ config MICROBLAZE
 # Endianness selection
 choice
 	prompt "Endianness selection"
-	default CPU_BIG_ENDIAN
+	default CPU_LITTLE_ENDIAN
 	help
 	  microblaze architectures can be configured for either little or
 	  big endian formats. Be sure to select the appropriate mode.
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile
index 1f6c486826a0..830ee7d42fa0 100644
--- a/arch/microblaze/Makefile
+++ b/arch/microblaze/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 KBUILD_DEFCONFIG := mmu_defconfig
 
 ifeq ($(CONFIG_MMU),y)
diff --git a/arch/microblaze/boot/Makefile b/arch/microblaze/boot/Makefile
index 91d2068da1b9..47f94cc383b6 100644
--- a/arch/microblaze/boot/Makefile
+++ b/arch/microblaze/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/microblaze/boot/Makefile
 #
diff --git a/arch/microblaze/boot/dts/Makefile b/arch/microblaze/boot/dts/Makefile
index a3d2e42c3c97..1f77913d404d 100644
--- a/arch/microblaze/boot/dts/Makefile
+++ b/arch/microblaze/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 
 obj-y += linked_dtb.o
diff --git a/arch/microblaze/include/asm/asm-compat.h b/arch/microblaze/include/asm/asm-compat.h
index e7bc9dc11b57..c05259ce2d2c 100644
--- a/arch/microblaze/include/asm/asm-compat.h
+++ b/arch/microblaze/include/asm/asm-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MICROBLAZE_ASM_COMPAT_H
 #define _ASM_MICROBLAZE_ASM_COMPAT_H
 
diff --git a/arch/microblaze/include/asm/atomic.h b/arch/microblaze/include/asm/atomic.h
index 42ac382a09da..41e9aff23a62 100644
--- a/arch/microblaze/include/asm/atomic.h
+++ b/arch/microblaze/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MICROBLAZE_ATOMIC_H
 #define _ASM_MICROBLAZE_ATOMIC_H
 
diff --git a/arch/microblaze/include/asm/cmpxchg.h b/arch/microblaze/include/asm/cmpxchg.h
index 538afc0ab9f3..596300c74509 100644
--- a/arch/microblaze/include/asm/cmpxchg.h
+++ b/arch/microblaze/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MICROBLAZE_CMPXCHG_H
 #define _ASM_MICROBLAZE_CMPXCHG_H
 
diff --git a/arch/microblaze/include/asm/ftrace.h b/arch/microblaze/include/asm/ftrace.h
index da0144f40d99..5db7f4489f05 100644
--- a/arch/microblaze/include/asm/ftrace.h
+++ b/arch/microblaze/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MICROBLAZE_FTRACE
 #define _ASM_MICROBLAZE_FTRACE
 
diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h
index a9dad9e5e132..2572077b04ea 100644
--- a/arch/microblaze/include/asm/futex.h
+++ b/arch/microblaze/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MICROBLAZE_FUTEX_H
 #define _ASM_MICROBLAZE_FUTEX_H
 
diff --git a/arch/microblaze/include/asm/hash.h b/arch/microblaze/include/asm/hash.h
index 753513ae8cb0..ef4741a40583 100644
--- a/arch/microblaze/include/asm/hash.h
+++ b/arch/microblaze/include/asm/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HASH_H
 #define _ASM_HASH_H
 
diff --git a/arch/microblaze/include/asm/highmem.h b/arch/microblaze/include/asm/highmem.h
index 67925ef18cfa..332c78e15198 100644
--- a/arch/microblaze/include/asm/highmem.h
+++ b/arch/microblaze/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * highmem.h: virtual kernel memory mappings for high memory
  *
diff --git a/arch/microblaze/include/asm/kgdb.h b/arch/microblaze/include/asm/kgdb.h
index ad27acb2b15f..8dc5ebb07fd5 100644
--- a/arch/microblaze/include/asm/kgdb.h
+++ b/arch/microblaze/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __KERNEL__
 #ifndef __MICROBLAZE_KGDB_H__
 #define __MICROBLAZE_KGDB_H__
diff --git a/arch/microblaze/include/asm/mmu_context.h b/arch/microblaze/include/asm/mmu_context.h
index 0ccd8c402cd9..f74f9da07fdc 100644
--- a/arch/microblaze/include/asm/mmu_context.h
+++ b/arch/microblaze/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_MMU
 # include <asm/mmu_context_mm.h>
 #else
diff --git a/arch/microblaze/include/asm/seccomp.h b/arch/microblaze/include/asm/seccomp.h
index 204618a2ce84..95cdcabee28c 100644
--- a/arch/microblaze/include/asm/seccomp.h
+++ b/arch/microblaze/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MICROBLAZE_SECCOMP_H
 #define _ASM_MICROBLAZE_SECCOMP_H
 
diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 04a5bece8168..220decd605a4 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MICROBLAZE_SYSCALL_H
 #define __ASM_MICROBLAZE_SYSCALL_H
 
diff --git a/arch/microblaze/include/uapi/asm/Kbuild b/arch/microblaze/include/uapi/asm/Kbuild
index e77a596f3f1e..06609ca36115 100644
--- a/arch/microblaze/include/uapi/asm/Kbuild
+++ b/arch/microblaze/include/uapi/asm/Kbuild
@@ -7,6 +7,7 @@ generic-y += fcntl.h
 generic-y += ioctl.h
 generic-y += ioctls.h
 generic-y += ipcbuf.h
+generic-y += kvm_para.h
 generic-y += mman.h
 generic-y += msgbuf.h
 generic-y += param.h
diff --git a/arch/microblaze/include/uapi/asm/auxvec.h b/arch/microblaze/include/uapi/asm/auxvec.h
index 8b137891791f..93dd07bd0af7 100644
--- a/arch/microblaze/include/uapi/asm/auxvec.h
+++ b/arch/microblaze/include/uapi/asm/auxvec.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 
diff --git a/arch/microblaze/include/uapi/asm/byteorder.h b/arch/microblaze/include/uapi/asm/byteorder.h
index 31902762a426..763660169456 100644
--- a/arch/microblaze/include/uapi/asm/byteorder.h
+++ b/arch/microblaze/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_MICROBLAZE_BYTEORDER_H
 #define _ASM_MICROBLAZE_BYTEORDER_H
 
diff --git a/arch/microblaze/include/uapi/asm/elf.h b/arch/microblaze/include/uapi/asm/elf.h
index e9bcdb6e0086..6b656de29f00 100644
--- a/arch/microblaze/include/uapi/asm/elf.h
+++ b/arch/microblaze/include/uapi/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
  * Copyright (C) 2008-2009 PetaLogix
diff --git a/arch/microblaze/include/uapi/asm/posix_types.h b/arch/microblaze/include/uapi/asm/posix_types.h
index 0e15039673e3..f3249da69121 100644
--- a/arch/microblaze/include/uapi/asm/posix_types.h
+++ b/arch/microblaze/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_MICROBLAZE_POSIX_TYPES_H
 #define _ASM_MICROBLAZE_POSIX_TYPES_H
 
diff --git a/arch/microblaze/include/uapi/asm/ptrace.h b/arch/microblaze/include/uapi/asm/ptrace.h
index d31238a5f946..46dd94cb7802 100644
--- a/arch/microblaze/include/uapi/asm/ptrace.h
+++ b/arch/microblaze/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2006 Atmark Techno, Inc.
  *
diff --git a/arch/microblaze/include/uapi/asm/setup.h b/arch/microblaze/include/uapi/asm/setup.h
index 76bc2acee6af..6831794e6f2c 100644
--- a/arch/microblaze/include/uapi/asm/setup.h
+++ b/arch/microblaze/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
  * Copyright (C) 2007-2009 PetaLogix
diff --git a/arch/microblaze/include/uapi/asm/sigcontext.h b/arch/microblaze/include/uapi/asm/sigcontext.h
index 55873c80c917..47eb2e2111bb 100644
--- a/arch/microblaze/include/uapi/asm/sigcontext.h
+++ b/arch/microblaze/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2006 Atmark Techno, Inc.
  *
diff --git a/arch/microblaze/include/uapi/asm/unistd.h b/arch/microblaze/include/uapi/asm/unistd.h
index a88b3c11cc20..eb156f914793 100644
--- a/arch/microblaze/include/uapi/asm/unistd.h
+++ b/arch/microblaze/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu>
  * Copyright (C) 2006 Atmark Techno, Inc.
diff --git a/arch/microblaze/kernel/Makefile b/arch/microblaze/kernel/Makefile
index e098381af928..0da76fa1ab17 100644
--- a/arch/microblaze/kernel/Makefile
+++ b/arch/microblaze/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile
 #
diff --git a/arch/microblaze/kernel/cpu/Makefile b/arch/microblaze/kernel/cpu/Makefile
index fceed4edea41..059afc75a976 100644
--- a/arch/microblaze/kernel/cpu/Makefile
+++ b/arch/microblaze/kernel/cpu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Build the appropriate CPU version support
 #
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index e45ada8fb006..e63f154be964 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2009-2010 PetaLogix
  * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corporation
@@ -165,7 +166,7 @@ int dma_direct_mmap_coherent(struct device *dev, struct vm_area_struct *vma,
 			     unsigned long attrs)
 {
 #ifdef CONFIG_MMU
-	unsigned long user_count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	unsigned long user_count = vma_pages(vma);
 	unsigned long count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	unsigned long off = vma->vm_pgoff;
 	unsigned long pfn;
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index c48ff4ad2070..56bcf313121f 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 ENTRY(sys_call_table)
 	.long sys_restart_syscall	/* 0 - old "setup()" system call,
 					 * used for restarting */
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index 70c7ae6a3fb5..9fe7ab688ca5 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile
 #
diff --git a/arch/microblaze/lib/ashldi3.c b/arch/microblaze/lib/ashldi3.c
index 1af904cd972d..4d0f9481bdb7 100644
--- a/arch/microblaze/lib/ashldi3.c
+++ b/arch/microblaze/lib/ashldi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/microblaze/lib/ashrdi3.c b/arch/microblaze/lib/ashrdi3.c
index 32c334c05d04..268098a962a1 100644
--- a/arch/microblaze/lib/ashrdi3.c
+++ b/arch/microblaze/lib/ashrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/microblaze/lib/cmpdi2.c b/arch/microblaze/lib/cmpdi2.c
index 67abc9ac1bd4..b3f89638518c 100644
--- a/arch/microblaze/lib/cmpdi2.c
+++ b/arch/microblaze/lib/cmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/microblaze/lib/divsi3.S b/arch/microblaze/lib/divsi3.S
index 595b02d6e86b..919fb69f8589 100644
--- a/arch/microblaze/lib/divsi3.S
+++ b/arch/microblaze/lib/divsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 /*
diff --git a/arch/microblaze/lib/libgcc.h b/arch/microblaze/lib/libgcc.h
index ab077ef7e14b..a909366c202e 100644
--- a/arch/microblaze/lib/libgcc.h
+++ b/arch/microblaze/lib/libgcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LIBGCC_H
 #define __ASM_LIBGCC_H
 
diff --git a/arch/microblaze/lib/lshrdi3.c b/arch/microblaze/lib/lshrdi3.c
index adcb253f11c8..00eb8268227a 100644
--- a/arch/microblaze/lib/lshrdi3.c
+++ b/arch/microblaze/lib/lshrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/microblaze/lib/modsi3.S b/arch/microblaze/lib/modsi3.S
index 84e0bee6e8c7..64154865c1c5 100644
--- a/arch/microblaze/lib/modsi3.S
+++ b/arch/microblaze/lib/modsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 /*
diff --git a/arch/microblaze/lib/muldi3.c b/arch/microblaze/lib/muldi3.c
index a3f9a03acdcd..8e6bc17e2cd3 100644
--- a/arch/microblaze/lib/muldi3.c
+++ b/arch/microblaze/lib/muldi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/microblaze/lib/mulsi3.S b/arch/microblaze/lib/mulsi3.S
index 90bd7b93afe6..d6703a4d91f6 100644
--- a/arch/microblaze/lib/mulsi3.S
+++ b/arch/microblaze/lib/mulsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 /*
diff --git a/arch/microblaze/lib/ucmpdi2.c b/arch/microblaze/lib/ucmpdi2.c
index d05f1585121c..c60e068ff8bb 100644
--- a/arch/microblaze/lib/ucmpdi2.c
+++ b/arch/microblaze/lib/ucmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/microblaze/lib/udivsi3.S b/arch/microblaze/lib/udivsi3.S
index 64cf57e4bb85..acdc667235c4 100644
--- a/arch/microblaze/lib/udivsi3.S
+++ b/arch/microblaze/lib/udivsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 /*
diff --git a/arch/microblaze/lib/umodsi3.S b/arch/microblaze/lib/umodsi3.S
index 17d16bafae58..f4b814e88ce3 100644
--- a/arch/microblaze/lib/umodsi3.S
+++ b/arch/microblaze/lib/umodsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 /*
diff --git a/arch/microblaze/mm/highmem.c b/arch/microblaze/mm/highmem.c
index ed4454c5ce35..d7569f77fa15 100644
--- a/arch/microblaze/mm/highmem.c
+++ b/arch/microblaze/mm/highmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * highmem.c: virtual kernel memory mappings for high memory
  *
diff --git a/arch/microblaze/oprofile/Makefile b/arch/microblaze/oprofile/Makefile
index 0d0348c8af97..107f2f55d995 100644
--- a/arch/microblaze/oprofile/Makefile
+++ b/arch/microblaze/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # arch/microblaze/oprofile/Makefile
 #
diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
index 94149f5e6ebe..bde74af4c1cd 100644
--- a/arch/microblaze/pci/iomap.c
+++ b/arch/microblaze/pci/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ppc64 "iomap" interface implementation.
  *
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 48d91d5be4e9..5d3284d20678 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MIPS
 	bool
 	default y
@@ -1627,14 +1628,6 @@ config CPU_R5500
 	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
 	  instruction set.
 
-config CPU_R6000
-	bool "R6000"
-	depends on SYS_HAS_CPU_R6000
-	select CPU_SUPPORTS_32BIT_KERNEL
-	help
-	  MIPS Technologies R6000 and R6000A series processors.  Note these
-	  processors are extremely rare and the support for them is incomplete.
-
 config CPU_NEVADA
 	bool "RM52xx"
 	depends on SYS_HAS_CPU_NEVADA
@@ -1950,9 +1943,6 @@ config SYS_HAS_CPU_R5432
 config SYS_HAS_CPU_R5500
 	bool
 
-config SYS_HAS_CPU_R6000
-	bool
-
 config SYS_HAS_CPU_NEVADA
 	bool
 
@@ -2180,7 +2170,7 @@ config PAGE_SIZE_32KB
 
 config PAGE_SIZE_64KB
 	bool "64kB"
-	depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000
+	depends on !CPU_R3000 && !CPU_TX39XX
 	help
 	  Using 64kB page size will result in higher performance kernel at
 	  the price of higher memory consumption.  This option is available on
@@ -2248,11 +2238,11 @@ config CPU_HAS_PREFETCH
 
 config CPU_GENERIC_DUMP_TLB
 	bool
-	default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX)
+	default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX)
 
 config CPU_R4K_FPU
 	bool
-	default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON)
+	default y if !(CPU_R3000 || CPU_TX39XX)
 
 config CPU_R4K_CACHE_TLB
 	bool
@@ -2260,6 +2250,7 @@ config CPU_R4K_CACHE_TLB
 
 config MIPS_MT_SMP
 	bool "MIPS MT SMP support (1 TC on each available VPE)"
+	default y
 	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
 	select CPU_MIPSR2_IRQ_VI
 	select CPU_MIPSR2_IRQ_EI
@@ -2376,7 +2367,6 @@ config MIPS_CPS
 	bool "MIPS Coherent Processing System support"
 	depends on SYS_SUPPORTS_MIPS_CPS
 	select MIPS_CM
-	select MIPS_CPC
 	select MIPS_CPS_PM if HOTPLUG_CPU
 	select SMP
 	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
@@ -2393,11 +2383,11 @@ config MIPS_CPS
 
 config MIPS_CPS_PM
 	depends on MIPS_CPS
-	select MIPS_CPC
 	bool
 
 config MIPS_CM
 	bool
+	select MIPS_CPC
 
 config MIPS_CPC
 	bool
diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 42a97c59200f..464af5e025d6 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index bc2708c9ada4..a96d97a806c9 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -151,7 +151,6 @@ cflags-y += -fno-stack-check
 #
 cflags-$(CONFIG_CPU_R3000)	+= -march=r3000
 cflags-$(CONFIG_CPU_TX39XX)	+= -march=r3900
-cflags-$(CONFIG_CPU_R6000)	+= -march=r6000 -Wa,--trap
 cflags-$(CONFIG_CPU_R4300)	+= -march=r4300 -Wa,--trap
 cflags-$(CONFIG_CPU_VR41XX)	+= -march=r4100 -Wa,--trap
 cflags-$(CONFIG_CPU_R4X00)	+= -march=r4600 -Wa,--trap
@@ -291,7 +290,8 @@ KBUILD_CPPFLAGS += -DDATAOFFSET=$(if $(dataoffset-y),$(dataoffset-y),0)
 
 bootvars-y	= VMLINUX_LOAD_ADDRESS=$(load-y) \
 		  VMLINUX_ENTRY_ADDRESS=$(entry-y) \
-		  PLATFORM="$(platform-y)"
+		  PLATFORM="$(platform-y)" \
+		  ITS_INPUTS="$(its-y)"
 ifdef CONFIG_32BIT
 bootvars-y	+= ADDR_BITS=32
 endif
@@ -299,6 +299,10 @@ ifdef CONFIG_64BIT
 bootvars-y	+= ADDR_BITS=64
 endif
 
+# This is required to get dwarf unwinding tables into .debug_frame
+# instead of .eh_frame so we don't discard them.
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+
 LDFLAGS			+= -m $(ld-emul)
 
 ifdef CONFIG_MIPS
@@ -500,8 +504,14 @@ $(eval $(call gen_generic_defconfigs,micro32,r2,eb el))
 .PHONY: $(generic_defconfigs)
 $(generic_defconfigs):
 	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh \
-		-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ \
-		$(foreach board,$(BOARDS),$(generic_config_dir)/board-$(board).config)
+		-m -O $(objtree) $(srctree)/arch/$(ARCH)/configs/generic_defconfig $^ | \
+		grep -Ev '^#'
+	$(Q)cp $(KCONFIG_CONFIG) $(objtree)/.config.$@
+	$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig \
+		KCONFIG_CONFIG=$(objtree)/.config.$@ >/dev/null
+	$(Q)$(CONFIG_SHELL) $(srctree)/arch/$(ARCH)/tools/generic-board-config.sh \
+		$(srctree) $(objtree) $(objtree)/.config.$@ $(KCONFIG_CONFIG) \
+		"$(origin BOARDS)" $(BOARDS)
 	$(Q)$(MAKE) -f $(srctree)/Makefile olddefconfig
 
 #
@@ -510,6 +520,19 @@ $(generic_defconfigs):
 $(generic_config_dir)/%.config: ;
 
 #
+# Prevent direct use of generic_defconfig, which is intended to be used as the
+# basis of the various ISA-specific targets generated above.
+#
+.PHONY: generic_defconfig
+generic_defconfig:
+	$(Q)echo "generic_defconfig is not intended for direct use, but should instead be"
+	$(Q)echo "used via an ISA-specific target from the following list:"
+	$(Q)echo
+	$(Q)for cfg in $(generic_defconfigs); do echo "  $${cfg}"; done
+	$(Q)echo
+	$(Q)false
+
+#
 # Legacy defconfig compatibility - these targets used to be real defconfigs but
 # now that the boards have been converted to use the generic kernel they are
 # wrappers around the generic rules above.
diff --git a/arch/mips/Makefile.postlink b/arch/mips/Makefile.postlink
index 4b7f5a648c79..4eea4188cb20 100644
--- a/arch/mips/Makefile.postlink
+++ b/arch/mips/Makefile.postlink
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ===========================================================================
 # Post-link MIPS pass
 # ===========================================================================
diff --git a/arch/mips/alchemy/Kconfig b/arch/mips/alchemy/Kconfig
index 88b4d6a792c1..7d73f7f4202b 100644
--- a/arch/mips/alchemy/Kconfig
+++ b/arch/mips/alchemy/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # au1000-style gpio and interrupt controllers
 config ALCHEMY_GPIOINT_AU1000
 	bool
diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c
index 7ba7ea0a22f8..a83c7b7e2eb1 100644
--- a/arch/mips/alchemy/common/clock.c
+++ b/arch/mips/alchemy/common/clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alchemy clocks.
  *
diff --git a/arch/mips/alchemy/devboards/db1200.c b/arch/mips/alchemy/devboards/db1200.c
index 83831002c832..da7663770425 100644
--- a/arch/mips/alchemy/devboards/db1200.c
+++ b/arch/mips/alchemy/devboards/db1200.c
@@ -344,28 +344,32 @@ static struct platform_device db1200_ide_dev = {
 
 /* SD carddetects:  they're supposed to be edge-triggered, but ack
  * doesn't seem to work (CPLD Rev 2).  Instead, the screaming one
- * is disabled and its counterpart enabled.  The 500ms timeout is
- * because the carddetect isn't debounced in hardware.
+ * is disabled and its counterpart enabled.  The 200ms timeout is
+ * because the carddetect usually triggers twice, after debounce.
  */
 static irqreturn_t db1200_mmc_cd(int irq, void *ptr)
 {
-	void(*mmc_cd)(struct mmc_host *, unsigned long);
+	disable_irq_nosync(irq);
+	return IRQ_WAKE_THREAD;
+}
 
-	if (irq == DB1200_SD0_INSERT_INT) {
-		disable_irq_nosync(DB1200_SD0_INSERT_INT);
-		enable_irq(DB1200_SD0_EJECT_INT);
-	} else {
-		disable_irq_nosync(DB1200_SD0_EJECT_INT);
-		enable_irq(DB1200_SD0_INSERT_INT);
-	}
+static irqreturn_t db1200_mmc_cdfn(int irq, void *ptr)
+{
+	void (*mmc_cd)(struct mmc_host *, unsigned long);
 
 	/* link against CONFIG_MMC=m */
 	mmc_cd = symbol_get(mmc_detect_change);
 	if (mmc_cd) {
-		mmc_cd(ptr, msecs_to_jiffies(500));
+		mmc_cd(ptr, msecs_to_jiffies(200));
 		symbol_put(mmc_detect_change);
 	}
 
+	msleep(100);	/* debounce */
+	if (irq == DB1200_SD0_INSERT_INT)
+		enable_irq(DB1200_SD0_EJECT_INT);
+	else
+		enable_irq(DB1200_SD0_INSERT_INT);
+
 	return IRQ_HANDLED;
 }
 
@@ -374,13 +378,13 @@ static int db1200_mmc_cd_setup(void *mmc_host, int en)
 	int ret;
 
 	if (en) {
-		ret = request_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
-				  0, "sd_insert", mmc_host);
+		ret = request_threaded_irq(DB1200_SD0_INSERT_INT, db1200_mmc_cd,
+				db1200_mmc_cdfn, 0, "sd_insert", mmc_host);
 		if (ret)
 			goto out;
 
-		ret = request_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
-				  0, "sd_eject", mmc_host);
+		ret = request_threaded_irq(DB1200_SD0_EJECT_INT, db1200_mmc_cd,
+				db1200_mmc_cdfn, 0, "sd_eject", mmc_host);
 		if (ret) {
 			free_irq(DB1200_SD0_INSERT_INT, mmc_host);
 			goto out;
@@ -436,23 +440,27 @@ static struct led_classdev db1200_mmc_led = {
 
 static irqreturn_t pb1200_mmc1_cd(int irq, void *ptr)
 {
-	void(*mmc_cd)(struct mmc_host *, unsigned long);
+	disable_irq_nosync(irq);
+	return IRQ_WAKE_THREAD;
+}
 
-	if (irq == PB1200_SD1_INSERT_INT) {
-		disable_irq_nosync(PB1200_SD1_INSERT_INT);
-		enable_irq(PB1200_SD1_EJECT_INT);
-	} else {
-		disable_irq_nosync(PB1200_SD1_EJECT_INT);
-		enable_irq(PB1200_SD1_INSERT_INT);
-	}
+static irqreturn_t pb1200_mmc1_cdfn(int irq, void *ptr)
+{
+	void (*mmc_cd)(struct mmc_host *, unsigned long);
 
 	/* link against CONFIG_MMC=m */
 	mmc_cd = symbol_get(mmc_detect_change);
 	if (mmc_cd) {
-		mmc_cd(ptr, msecs_to_jiffies(500));
+		mmc_cd(ptr, msecs_to_jiffies(200));
 		symbol_put(mmc_detect_change);
 	}
 
+	msleep(100);	/* debounce */
+	if (irq == PB1200_SD1_INSERT_INT)
+		enable_irq(PB1200_SD1_EJECT_INT);
+	else
+		enable_irq(PB1200_SD1_INSERT_INT);
+
 	return IRQ_HANDLED;
 }
 
@@ -461,13 +469,13 @@ static int pb1200_mmc1_cd_setup(void *mmc_host, int en)
 	int ret;
 
 	if (en) {
-		ret = request_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd, 0,
-				  "sd1_insert", mmc_host);
+		ret = request_threaded_irq(PB1200_SD1_INSERT_INT, pb1200_mmc1_cd,
+				pb1200_mmc1_cdfn, 0, "sd1_insert", mmc_host);
 		if (ret)
 			goto out;
 
-		ret = request_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd, 0,
-				  "sd1_eject", mmc_host);
+		ret = request_threaded_irq(PB1200_SD1_EJECT_INT, pb1200_mmc1_cd,
+				pb1200_mmc1_cdfn, 0, "sd1_eject", mmc_host);
 		if (ret) {
 			free_irq(PB1200_SD1_INSERT_INT, mmc_host);
 			goto out;
diff --git a/arch/mips/alchemy/devboards/db1300.c b/arch/mips/alchemy/devboards/db1300.c
index 3e7fbdbdb3c4..efb318e03e0a 100644
--- a/arch/mips/alchemy/devboards/db1300.c
+++ b/arch/mips/alchemy/devboards/db1300.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DBAu1300 init and platform device setup.
  *
@@ -450,24 +451,27 @@ static struct platform_device db1300_ide_dev = {
 
 static irqreturn_t db1300_mmc_cd(int irq, void *ptr)
 {
-	void(*mmc_cd)(struct mmc_host *, unsigned long);
+	disable_irq_nosync(irq);
+	return IRQ_WAKE_THREAD;
+}
 
-	/* disable the one currently screaming. No other way to shut it up */
-	if (irq == DB1300_SD1_INSERT_INT) {
-		disable_irq_nosync(DB1300_SD1_INSERT_INT);
-		enable_irq(DB1300_SD1_EJECT_INT);
-	} else {
-		disable_irq_nosync(DB1300_SD1_EJECT_INT);
-		enable_irq(DB1300_SD1_INSERT_INT);
-	}
+static irqreturn_t db1300_mmc_cdfn(int irq, void *ptr)
+{
+	void (*mmc_cd)(struct mmc_host *, unsigned long);
 
 	/* link against CONFIG_MMC=m.  We can only be called once MMC core has
 	 * initialized the controller, so symbol_get() should always succeed.
 	 */
 	mmc_cd = symbol_get(mmc_detect_change);
-	mmc_cd(ptr, msecs_to_jiffies(500));
+	mmc_cd(ptr, msecs_to_jiffies(200));
 	symbol_put(mmc_detect_change);
 
+	msleep(100);	/* debounce */
+	if (irq == DB1300_SD1_INSERT_INT)
+		enable_irq(DB1300_SD1_EJECT_INT);
+	else
+		enable_irq(DB1300_SD1_INSERT_INT);
+
 	return IRQ_HANDLED;
 }
 
@@ -487,13 +491,13 @@ static int db1300_mmc_cd_setup(void *mmc_host, int en)
 	int ret;
 
 	if (en) {
-		ret = request_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd, 0,
-				  "sd_insert", mmc_host);
+		ret = request_threaded_irq(DB1300_SD1_INSERT_INT, db1300_mmc_cd,
+				db1300_mmc_cdfn, 0, "sd_insert", mmc_host);
 		if (ret)
 			goto out;
 
-		ret = request_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd, 0,
-				  "sd_eject", mmc_host);
+		ret = request_threaded_irq(DB1300_SD1_EJECT_INT, db1300_mmc_cd,
+				db1300_mmc_cdfn, 0, "sd_eject", mmc_host);
 		if (ret) {
 			free_irq(DB1300_SD1_INSERT_INT, mmc_host);
 			goto out;
diff --git a/arch/mips/alchemy/devboards/db1550.c b/arch/mips/alchemy/devboards/db1550.c
index 421bd5793f7e..7d3dfaa10231 100644
--- a/arch/mips/alchemy/devboards/db1550.c
+++ b/arch/mips/alchemy/devboards/db1550.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alchemy Db1550/Pb1550 board support
  *
diff --git a/arch/mips/alchemy/devboards/db1xxx.c b/arch/mips/alchemy/devboards/db1xxx.c
index 2d47f951121a..e6d25aad8350 100644
--- a/arch/mips/alchemy/devboards/db1xxx.c
+++ b/arch/mips/alchemy/devboards/db1xxx.c
@@ -1,7 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alchemy DB/PB1xxx board support.
  */
 
+#include <asm/prom.h>
 #include <asm/mach-au1x00/au1000.h>
 #include <asm/mach-db1x00/bcsr.h>
 
@@ -97,6 +99,7 @@ arch_initcall(db1xxx_arch_init);
 
 static int __init db1xxx_dev_init(void)
 {
+	mips_set_machine_name(board_type_str());
 	switch (BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI))) {
 	case BCSR_WHOAMI_DB1000:
 	case BCSR_WHOAMI_DB1500:
diff --git a/arch/mips/alchemy/devboards/platform.c b/arch/mips/alchemy/devboards/platform.c
index be139a0198b0..4640edab207c 100644
--- a/arch/mips/alchemy/devboards/platform.c
+++ b/arch/mips/alchemy/devboards/platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * devoard misc stuff.
  */
diff --git a/arch/mips/alchemy/devboards/platform.h b/arch/mips/alchemy/devboards/platform.h
index 5ac055d2cda9..23d98fc09a43 100644
--- a/arch/mips/alchemy/devboards/platform.h
+++ b/arch/mips/alchemy/devboards/platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DEVBOARD_PLATFORM_H_
 #define _DEVBOARD_PLATFORM_H_
 
diff --git a/arch/mips/alchemy/devboards/pm.c b/arch/mips/alchemy/devboards/pm.c
index 93024dc6b314..73c77814687a 100644
--- a/arch/mips/alchemy/devboards/pm.c
+++ b/arch/mips/alchemy/devboards/pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alchemy Development Board example suspend userspace interface.
  *
diff --git a/arch/mips/ar7/Makefile b/arch/mips/ar7/Makefile
index 7435e44b3964..cd51c6c6e686 100644
--- a/arch/mips/ar7/Makefile
+++ b/arch/mips/ar7/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-y := \
 	prom.o \
diff --git a/arch/mips/ar7/clock.c b/arch/mips/ar7/clock.c
index dda422a0f36c..0137656107a9 100644
--- a/arch/mips/ar7/clock.c
+++ b/arch/mips/ar7/clock.c
@@ -430,6 +430,9 @@ EXPORT_SYMBOL(clk_disable);
 
 unsigned long clk_get_rate(struct clk *clk)
 {
+	if (!clk)
+		return 0;
+
 	return clk->rate;
 }
 EXPORT_SYMBOL(clk_get_rate);
diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index df7acea3747a..4674f1efbe7a 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -575,6 +575,7 @@ static int __init ar7_register_uarts(void)
 	uart_port.type		= PORT_AR7;
 	uart_port.uartclk	= clk_get_rate(bus_clk) / 2;
 	uart_port.iotype	= UPIO_MEM32;
+	uart_port.flags		= UPF_FIXED_TYPE;
 	uart_port.regshift	= 2;
 
 	uart_port.line		= 0;
@@ -653,6 +654,10 @@ static int __init ar7_register_devices(void)
 	u32 val;
 	int res;
 
+	res = ar7_gpio_init();
+	if (res)
+		pr_warn("unable to register gpios: %d\n", res);
+
 	res = ar7_register_uarts();
 	if (res)
 		pr_err("unable to setup uart(s): %d\n", res);
diff --git a/arch/mips/ar7/prom.c b/arch/mips/ar7/prom.c
index 4fd83336131a..dd53987a690f 100644
--- a/arch/mips/ar7/prom.c
+++ b/arch/mips/ar7/prom.c
@@ -246,8 +246,6 @@ void __init prom_init(void)
 	ar7_init_cmdline(fw_arg0, (char **)fw_arg1);
 	ar7_init_env((struct env_var *)fw_arg2);
 	console_config();
-
-	ar7_gpio_init();
 }
 
 #define PORT(offset) (KSEG1ADDR(AR7_REGS_UART0 + (offset * 4)))
diff --git a/arch/mips/ath25/Kconfig b/arch/mips/ath25/Kconfig
index fc19dd57e42d..7070b4bcd01d 100644
--- a/arch/mips/ath25/Kconfig
+++ b/arch/mips/ath25/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config SOC_AR5312
 	bool "Atheros AR5312/AR2312+ SoC support"
 	depends on ATH25
diff --git a/arch/mips/ath25/ar2315.h b/arch/mips/ath25/ar2315.h
index 877afe63eed5..fccc64f6db6c 100644
--- a/arch/mips/ath25/ar2315.h
+++ b/arch/mips/ath25/ar2315.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AR2315_H
 #define __AR2315_H
 
diff --git a/arch/mips/ath25/ar5312.h b/arch/mips/ath25/ar5312.h
index 470abb0052bd..67518a59ac3c 100644
--- a/arch/mips/ath25/ar5312.h
+++ b/arch/mips/ath25/ar5312.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AR5312_H
 #define __AR5312_H
 
diff --git a/arch/mips/ath25/devices.c b/arch/mips/ath25/devices.c
index 7a64567d1ac3..e1156347da53 100644
--- a/arch/mips/ath25/devices.c
+++ b/arch/mips/ath25/devices.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/serial_8250.h>
diff --git a/arch/mips/ath25/devices.h b/arch/mips/ath25/devices.h
index 04d414115356..44cf690634b8 100644
--- a/arch/mips/ath25/devices.h
+++ b/arch/mips/ath25/devices.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATH25_DEVICES_H
 #define __ATH25_DEVICES_H
 
diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index dfc60209dc63..9547cf1ea38d 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if ATH79
 
 menu "Atheros AR71XX/AR724X/AR913X machine selection"
diff --git a/arch/mips/ath79/clock.c b/arch/mips/ath79/clock.c
index fa845953f736..6b1000b6a6a6 100644
--- a/arch/mips/ath79/clock.c
+++ b/arch/mips/ath79/clock.c
@@ -487,17 +487,16 @@ static void __init ath79_clocks_init_dt_ng(struct device_node *np)
 {
 	struct clk *ref_clk;
 	void __iomem *pll_base;
-	const char *dnfn = of_node_full_name(np);
 
 	ref_clk = of_clk_get(np, 0);
 	if (IS_ERR(ref_clk)) {
-		pr_err("%s: of_clk_get failed\n", dnfn);
+		pr_err("%pOF: of_clk_get failed\n", np);
 		goto err;
 	}
 
 	pll_base = of_iomap(np, 0);
 	if (!pll_base) {
-		pr_err("%s: can't map pll registers\n", dnfn);
+		pr_err("%pOF: can't map pll registers\n", np);
 		goto err_clk;
 	}
 
@@ -506,12 +505,12 @@ static void __init ath79_clocks_init_dt_ng(struct device_node *np)
 	else if (of_device_is_compatible(np, "qca,ar9330-pll"))
 		ar9330_clk_init(ref_clk, pll_base);
 	else {
-		pr_err("%s: could not find any appropriate clk_init()\n", dnfn);
+		pr_err("%pOF: could not find any appropriate clk_init()\n", np);
 		goto err_iounmap;
 	}
 
 	if (of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data)) {
-		pr_err("%s: could not register clk provider\n", dnfn);
+		pr_err("%pOF: could not register clk provider\n", np);
 		goto err_iounmap;
 	}
 
diff --git a/arch/mips/ath79/pci.c b/arch/mips/ath79/pci.c
index 730c0b03060d..b816cb4a25ff 100644
--- a/arch/mips/ath79/pci.c
+++ b/arch/mips/ath79/pci.c
@@ -22,10 +22,10 @@
 #include "pci.h"
 
 static int (*ath79_pci_plat_dev_init)(struct pci_dev *dev);
-static const struct ath79_pci_irq *ath79_pci_irq_map __initdata;
-static unsigned ath79_pci_nr_irqs __initdata;
+static const struct ath79_pci_irq *ath79_pci_irq_map;
+static unsigned ath79_pci_nr_irqs;
 
-static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
+static const struct ath79_pci_irq ar71xx_pci_irq_map[] = {
 	{
 		.slot	= 17,
 		.pin	= 1,
@@ -41,7 +41,7 @@ static const struct ath79_pci_irq ar71xx_pci_irq_map[] __initconst = {
 	}
 };
 
-static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
+static const struct ath79_pci_irq ar724x_pci_irq_map[] = {
 	{
 		.slot	= 0,
 		.pin	= 1,
@@ -49,7 +49,7 @@ static const struct ath79_pci_irq ar724x_pci_irq_map[] __initconst = {
 	}
 };
 
-static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
+static const struct ath79_pci_irq qca955x_pci_irq_map[] = {
 	{
 		.bus	= 0,
 		.slot	= 0,
@@ -64,7 +64,7 @@ static const struct ath79_pci_irq qca955x_pci_irq_map[] __initconst = {
 	},
 };
 
-int __init pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
+int pcibios_map_irq(const struct pci_dev *dev, uint8_t slot, uint8_t pin)
 {
 	int irq = -1;
 	int i;
diff --git a/arch/mips/bcm47xx/Kconfig b/arch/mips/bcm47xx/Kconfig
index e970fd9cf769..29471038d817 100644
--- a/arch/mips/bcm47xx/Kconfig
+++ b/arch/mips/bcm47xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if BCM47XX
 
 config BCM47XX_SSB
diff --git a/arch/mips/bcm47xx/bcm47xx_private.h b/arch/mips/bcm47xx/bcm47xx_private.h
index 0367ac7286fe..bb96743bb92e 100644
--- a/arch/mips/bcm47xx/bcm47xx_private.h
+++ b/arch/mips/bcm47xx/bcm47xx_private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCM47XX_PRIVATE_H_
 #define LINUX_BCM47XX_PRIVATE_H_
 
diff --git a/arch/mips/bcm47xx/board.c b/arch/mips/bcm47xx/board.c
index 8cbe60cc51d4..edfaef0d73a4 100644
--- a/arch/mips/bcm47xx/board.c
+++ b/arch/mips/bcm47xx/board.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/export.h>
 #include <linux/string.h>
diff --git a/arch/mips/bcm47xx/buttons.c b/arch/mips/bcm47xx/buttons.c
index 8a760d801895..88a8fb2bbc71 100644
--- a/arch/mips/bcm47xx/buttons.c
+++ b/arch/mips/bcm47xx/buttons.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "bcm47xx_private.h"
 
 #include <linux/input.h>
diff --git a/arch/mips/bcm47xx/leds.c b/arch/mips/bcm47xx/leds.c
index a35f1d5cde9f..d4f2407a42c6 100644
--- a/arch/mips/bcm47xx/leds.c
+++ b/arch/mips/bcm47xx/leds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "bcm47xx_private.h"
 
 #include <linux/leds.h>
diff --git a/arch/mips/bcm47xx/workarounds.c b/arch/mips/bcm47xx/workarounds.c
index e81ce4623070..1a8a07e7a563 100644
--- a/arch/mips/bcm47xx/workarounds.c
+++ b/arch/mips/bcm47xx/workarounds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "bcm47xx_private.h"
 
 #include <linux/gpio.h>
diff --git a/arch/mips/bcm63xx/Kconfig b/arch/mips/bcm63xx/Kconfig
index a057fdf111c6..96ed735a4f4a 100644
--- a/arch/mips/bcm63xx/Kconfig
+++ b/arch/mips/bcm63xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "CPU support"
 	depends on BCM63XX
 
diff --git a/arch/mips/bcm63xx/Makefile b/arch/mips/bcm63xx/Makefile
index 9019f54aee69..c69f297fc1df 100644
--- a/arch/mips/bcm63xx/Makefile
+++ b/arch/mips/bcm63xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y		+= clk.o cpu.o cs.o gpio.o irq.o nvram.o prom.o reset.o \
 		   setup.o timer.o dev-dsp.o dev-enet.o dev-flash.o \
 		   dev-pcmcia.o dev-rng.o dev-spi.o dev-hsspi.o dev-uart.o \
diff --git a/arch/mips/bcm63xx/boards/Kconfig b/arch/mips/bcm63xx/boards/Kconfig
index c6aed33d893e..6ff0a7481081 100644
--- a/arch/mips/bcm63xx/boards/Kconfig
+++ b/arch/mips/bcm63xx/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "Board support"
 	depends on BCM63XX
diff --git a/arch/mips/bcm63xx/clk.c b/arch/mips/bcm63xx/clk.c
index 73626040e4d6..19577f771c1f 100644
--- a/arch/mips/bcm63xx/clk.c
+++ b/arch/mips/bcm63xx/clk.c
@@ -339,6 +339,9 @@ EXPORT_SYMBOL(clk_disable);
 
 unsigned long clk_get_rate(struct clk *clk)
 {
+	if (!clk)
+		return 0;
+
 	return clk->rate;
 }
 
diff --git a/arch/mips/bmips/Kconfig b/arch/mips/bmips/Kconfig
index 2d60f25403de..63dfc695087b 100644
--- a/arch/mips/bmips/Kconfig
+++ b/arch/mips/bmips/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if BMIPS_GENERIC
 
 choice
diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile
index 145b5ce8eb7e..1bd5c4f00d19 100644
--- a/arch/mips/boot/Makefile
+++ b/arch/mips/boot/Makefile
@@ -118,6 +118,12 @@ ifeq ($(ADDR_BITS),64)
 	itb_addr_cells = 2
 endif
 
+quiet_cmd_its_cat = CAT     $@
+      cmd_its_cat = cat $^ >$@
+
+$(obj)/vmlinux.its.S: $(addprefix $(srctree)/arch/mips/$(PLATFORM)/,$(ITS_INPUTS))
+	$(call if_changed,its_cat)
+
 quiet_cmd_cpp_its_S = ITS     $@
       cmd_cpp_its_S = $(CPP) $(cpp_flags) -P -C -o $@ $< \
 		        -DKERNEL_NAME="\"Linux $(KERNELRELEASE)\"" \
@@ -128,19 +134,19 @@ quiet_cmd_cpp_its_S = ITS     $@
 			-DADDR_BITS=$(ADDR_BITS) \
 			-DADDR_CELLS=$(itb_addr_cells)
 
-$(obj)/vmlinux.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,none,vmlinux.bin)
 
-$(obj)/vmlinux.gz.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.gz.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,gzip,vmlinux.bin.gz)
 
-$(obj)/vmlinux.bz2.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX)  FORCE
+$(obj)/vmlinux.bz2.its: $(obj)/vmlinux.its.S $(VMLINUX)  FORCE
 	$(call if_changed_dep,cpp_its_S,bzip2,vmlinux.bin.bz2)
 
-$(obj)/vmlinux.lzma.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.lzma.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,lzma,vmlinux.bin.lzma)
 
-$(obj)/vmlinux.lzo.its: $(srctree)/arch/mips/$(PLATFORM)/vmlinux.its.S $(VMLINUX) FORCE
+$(obj)/vmlinux.lzo.its: $(obj)/vmlinux.its.S $(VMLINUX) FORCE
 	$(call if_changed_dep,cpp_its_S,lzo,vmlinux.bin.lzo)
 
 quiet_cmd_itb-image = ITB     $@
diff --git a/arch/mips/boot/compressed/dbg.c b/arch/mips/boot/compressed/dbg.c
index 06c6a5bd175d..f6728a8fd1c3 100644
--- a/arch/mips/boot/compressed/dbg.c
+++ b/arch/mips/boot/compressed/dbg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MIPS-specific debug support for pre-boot environment
  *
diff --git a/arch/mips/boot/compressed/string.c b/arch/mips/boot/compressed/string.c
index 9de9885acd0d..43beecc3587c 100644
--- a/arch/mips/boot/compressed/string.c
+++ b/arch/mips/boot/compressed/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/mips/boot/compressed/string.c
  *
diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c
index f7521142deda..b3043c08f769 100644
--- a/arch/mips/boot/compressed/uart-16550.c
+++ b/arch/mips/boot/compressed/uart-16550.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 16550 compatible uart based serial debug support for zboot
  */
diff --git a/arch/mips/boot/compressed/uart-alchemy.c b/arch/mips/boot/compressed/uart-alchemy.c
index 4bee55b93f6a..8ec63011e7dc 100644
--- a/arch/mips/boot/compressed/uart-alchemy.c
+++ b/arch/mips/boot/compressed/uart-alchemy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/mach-au1x00/au1000.h>
 
 void putc(char c)
diff --git a/arch/mips/boot/compressed/uart-prom.c b/arch/mips/boot/compressed/uart-prom.c
index 1c3d51bc90bb..d6f0fee0a151 100644
--- a/arch/mips/boot/compressed/uart-prom.c
+++ b/arch/mips/boot/compressed/uart-prom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 extern void prom_putchar(unsigned char ch);
 
diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile
index b9db49203e0c..e0a4e939f843 100644
--- a/arch/mips/boot/dts/Makefile
+++ b/arch/mips/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dts-dirs	+= brcm
 dts-dirs	+= cavium-octeon
 dts-dirs	+= img
@@ -5,6 +6,7 @@ dts-dirs	+= ingenic
 dts-dirs	+= lantiq
 dts-dirs	+= mti
 dts-dirs	+= netlogic
+dts-dirs	+= ni
 dts-dirs	+= pic32
 dts-dirs	+= qca
 dts-dirs	+= ralink
diff --git a/arch/mips/boot/dts/brcm/Makefile b/arch/mips/boot/dts/brcm/Makefile
index d61bc2aebf69..9e09cc4556b3 100644
--- a/arch/mips/boot/dts/brcm/Makefile
+++ b/arch/mips/boot/dts/brcm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DT_BCM93384WVG)		+= bcm93384wvg.dtb
 dtb-$(CONFIG_DT_BCM93384WVG_VIPER)	+= bcm93384wvg_viper.dtb
 dtb-$(CONFIG_DT_BCM96368MVWG)		+= bcm96368mvwg.dtb
diff --git a/arch/mips/boot/dts/brcm/bcm3368-netgear-cvg834g.dts b/arch/mips/boot/dts/brcm/bcm3368-netgear-cvg834g.dts
index 2f2e80fdcde8..ed6023a91763 100644
--- a/arch/mips/boot/dts/brcm/bcm3368-netgear-cvg834g.dts
+++ b/arch/mips/boot/dts/brcm/bcm3368-netgear-cvg834g.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm3368.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm3368.dtsi b/arch/mips/boot/dts/brcm/bcm3368.dtsi
index bee855cb8073..277cde02b744 100644
--- a/arch/mips/boot/dts/brcm/bcm3368.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm3368.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm3384_viper.dtsi b/arch/mips/boot/dts/brcm/bcm3384_viper.dtsi
index aa406b43c65f..eb2a9c6ed604 100644
--- a/arch/mips/boot/dts/brcm/bcm3384_viper.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm3384_viper.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm3384_zephyr.dtsi b/arch/mips/boot/dts/brcm/bcm3384_zephyr.dtsi
index a7bd8564e9f6..d7ad769a42fc 100644
--- a/arch/mips/boot/dts/brcm/bcm3384_zephyr.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm3384_zephyr.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm63268-comtrend-vr-3032u.dts b/arch/mips/boot/dts/brcm/bcm63268-comtrend-vr-3032u.dts
index 430d35ca33d5..2bc0d8401ad6 100644
--- a/arch/mips/boot/dts/brcm/bcm63268-comtrend-vr-3032u.dts
+++ b/arch/mips/boot/dts/brcm/bcm63268-comtrend-vr-3032u.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm63268.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm63268.dtsi b/arch/mips/boot/dts/brcm/bcm63268.dtsi
index 7e6bf2cc0287..3b09f44e67fb 100644
--- a/arch/mips/boot/dts/brcm/bcm63268.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm63268.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm6328.dtsi b/arch/mips/boot/dts/brcm/bcm6328.dtsi
index 5633b9d90f55..644486fe4159 100644
--- a/arch/mips/boot/dts/brcm/bcm6328.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6328.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm6358-neufbox4-sercomm.dts b/arch/mips/boot/dts/brcm/bcm6358-neufbox4-sercomm.dts
index 702eae2a22a0..5e62190aa3d5 100644
--- a/arch/mips/boot/dts/brcm/bcm6358-neufbox4-sercomm.dts
+++ b/arch/mips/boot/dts/brcm/bcm6358-neufbox4-sercomm.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm6358.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm6358.dtsi b/arch/mips/boot/dts/brcm/bcm6358.dtsi
index f9d8d392162b..682df7fb7069 100644
--- a/arch/mips/boot/dts/brcm/bcm6358.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6358.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm6362-neufbox6-sercomm.dts b/arch/mips/boot/dts/brcm/bcm6362-neufbox6-sercomm.dts
index 480f2a5bf1da..3e83bee5b91e 100644
--- a/arch/mips/boot/dts/brcm/bcm6362-neufbox6-sercomm.dts
+++ b/arch/mips/boot/dts/brcm/bcm6362-neufbox6-sercomm.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm6362.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm6362.dtsi b/arch/mips/boot/dts/brcm/bcm6362.dtsi
index c507da594f2f..a82a5e5de672 100644
--- a/arch/mips/boot/dts/brcm/bcm6362.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6362.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm6368.dtsi b/arch/mips/boot/dts/brcm/bcm6368.dtsi
index d0e3a70b32e2..7a72f59ae457 100644
--- a/arch/mips/boot/dts/brcm/bcm6368.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm6368.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7125.dtsi b/arch/mips/boot/dts/brcm/bcm7125.dtsi
index 79f838ed96c5..2f9ef565e5d0 100644
--- a/arch/mips/boot/dts/brcm/bcm7125.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7125.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7346.dtsi b/arch/mips/boot/dts/brcm/bcm7346.dtsi
index da7bfa45a57d..02e426fe6013 100644
--- a/arch/mips/boot/dts/brcm/bcm7346.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7346.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7358.dtsi b/arch/mips/boot/dts/brcm/bcm7358.dtsi
index 9b05760453f0..1089d6ebc841 100644
--- a/arch/mips/boot/dts/brcm/bcm7358.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7358.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7360.dtsi b/arch/mips/boot/dts/brcm/bcm7360.dtsi
index 57b613c6acf2..4b87ebec407a 100644
--- a/arch/mips/boot/dts/brcm/bcm7360.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7360.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7362.dtsi b/arch/mips/boot/dts/brcm/bcm7362.dtsi
index c2a2843aaa9a..ca657df34b6d 100644
--- a/arch/mips/boot/dts/brcm/bcm7362.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7362.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7420.dtsi b/arch/mips/boot/dts/brcm/bcm7420.dtsi
index 532fc8a15796..d262e11bc3f9 100644
--- a/arch/mips/boot/dts/brcm/bcm7420.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7420.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7425.dtsi b/arch/mips/boot/dts/brcm/bcm7425.dtsi
index f56fb25f2e6b..e4fb9b6e6dce 100644
--- a/arch/mips/boot/dts/brcm/bcm7425.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7425.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm7435.dtsi b/arch/mips/boot/dts/brcm/bcm7435.dtsi
index f2cead2eae5c..1484e8990e52 100644
--- a/arch/mips/boot/dts/brcm/bcm7435.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm7435.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/brcm/bcm93384wvg.dts b/arch/mips/boot/dts/brcm/bcm93384wvg.dts
index d1e44a17d41a..601e4d9293ab 100644
--- a/arch/mips/boot/dts/brcm/bcm93384wvg.dts
+++ b/arch/mips/boot/dts/brcm/bcm93384wvg.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm3384_zephyr.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm93384wvg_viper.dts b/arch/mips/boot/dts/brcm/bcm93384wvg_viper.dts
index 1ecb2696aca8..938a8e66128c 100644
--- a/arch/mips/boot/dts/brcm/bcm93384wvg_viper.dts
+++ b/arch/mips/boot/dts/brcm/bcm93384wvg_viper.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm3384_viper.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm96368mvwg.dts b/arch/mips/boot/dts/brcm/bcm96368mvwg.dts
index 8c71c6845730..6d772c394e41 100644
--- a/arch/mips/boot/dts/brcm/bcm96368mvwg.dts
+++ b/arch/mips/boot/dts/brcm/bcm96368mvwg.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm6368.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97125cbmb.dts b/arch/mips/boot/dts/brcm/bcm97125cbmb.dts
index d72bc423ceaa..7f59ea2ded6c 100644
--- a/arch/mips/boot/dts/brcm/bcm97125cbmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97125cbmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7125.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts b/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
index ea52d7b5772f..9e7d5228f2b7 100644
--- a/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97346dbsmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7346.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97358svmb.dts b/arch/mips/boot/dts/brcm/bcm97358svmb.dts
index 71357fdc19af..708207a0002d 100644
--- a/arch/mips/boot/dts/brcm/bcm97358svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97358svmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7358.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97360svmb.dts b/arch/mips/boot/dts/brcm/bcm97360svmb.dts
index e2fed406c6ee..73c6dc9c8c6d 100644
--- a/arch/mips/boot/dts/brcm/bcm97360svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97360svmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7360.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97362svmb.dts b/arch/mips/boot/dts/brcm/bcm97362svmb.dts
index 78bffdf11872..37bacfdcf9d9 100644
--- a/arch/mips/boot/dts/brcm/bcm97362svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97362svmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7362.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97420c.dts b/arch/mips/boot/dts/brcm/bcm97420c.dts
index d62b448a152d..f96241e94874 100644
--- a/arch/mips/boot/dts/brcm/bcm97420c.dts
+++ b/arch/mips/boot/dts/brcm/bcm97420c.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7420.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97425svmb.dts b/arch/mips/boot/dts/brcm/bcm97425svmb.dts
index 73aa006bd9ce..ce762c7b2e54 100644
--- a/arch/mips/boot/dts/brcm/bcm97425svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97425svmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7425.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97435svmb.dts b/arch/mips/boot/dts/brcm/bcm97435svmb.dts
index 0a915f3feab6..d4dd31a543fd 100644
--- a/arch/mips/boot/dts/brcm/bcm97435svmb.dts
+++ b/arch/mips/boot/dts/brcm/bcm97435svmb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm7435.dtsi"
diff --git a/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch24.dtsi b/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch24.dtsi
index 3c24f97de922..96c30d857be4 100644
--- a/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch24.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch24.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 &nand {
 	nandcs@1 {
 		compatible = "brcm,nandcs";
diff --git a/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch4.dtsi b/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch4.dtsi
index cb531816ef4c..7b5afefbbfab 100644
--- a/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch4.dtsi
+++ b/arch/mips/boot/dts/brcm/bcm97xxx-nand-cs1-bch4.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 &nand {
 	nandcs@1 {
 		compatible = "brcm,nandcs";
diff --git a/arch/mips/boot/dts/brcm/bcm9ejtagprb.dts b/arch/mips/boot/dts/brcm/bcm9ejtagprb.dts
index 1da4608680aa..8d58c1971b30 100644
--- a/arch/mips/boot/dts/brcm/bcm9ejtagprb.dts
+++ b/arch/mips/boot/dts/brcm/bcm9ejtagprb.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "bcm6328.dtsi"
diff --git a/arch/mips/boot/dts/cavium-octeon/Makefile b/arch/mips/boot/dts/cavium-octeon/Makefile
index 5b99c40a058f..35300e091573 100644
--- a/arch/mips/boot/dts/cavium-octeon/Makefile
+++ b/arch/mips/boot/dts/cavium-octeon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_CAVIUM_OCTEON_SOC)	+= octeon_3xxx.dtb octeon_68xx.dtb
 
 obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
diff --git a/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dts b/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dts
index ca6b4467bcd3..0fa3dd1819ff 100644
--- a/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dts
+++ b/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OCTEON 3XXX, 5XXX, 63XX device tree skeleton.
  *
diff --git a/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dtsi b/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dtsi
index 5302148e05a3..3c296623d870 100644
--- a/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dtsi
+++ b/arch/mips/boot/dts/cavium-octeon/octeon_3xxx.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* OCTEON 3XXX DTS common parts. */
 
 /dts-v1/;
diff --git a/arch/mips/boot/dts/cavium-octeon/octeon_68xx.dts b/arch/mips/boot/dts/cavium-octeon/octeon_68xx.dts
index 79b46fcb0a11..3d0acbb2e15f 100644
--- a/arch/mips/boot/dts/cavium-octeon/octeon_68xx.dts
+++ b/arch/mips/boot/dts/cavium-octeon/octeon_68xx.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /*
  * OCTEON 68XX device tree skeleton.
diff --git a/arch/mips/boot/dts/img/Makefile b/arch/mips/boot/dts/img/Makefile
index 3d70958d0f5a..139bcd887b86 100644
--- a/arch/mips/boot/dts/img/Makefile
+++ b/arch/mips/boot/dts/img/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= boston.dtb
 
 dtb-$(CONFIG_MACH_PISTACHIO)	+= pistachio_marduk.dtb
diff --git a/arch/mips/boot/dts/img/boston.dts b/arch/mips/boot/dts/img/boston.dts
index 53bfa29a7093..2cd49b60e030 100644
--- a/arch/mips/boot/dts/img/boston.dts
+++ b/arch/mips/boot/dts/img/boston.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/clock/boston-clock.h>
diff --git a/arch/mips/boot/dts/ingenic/Makefile b/arch/mips/boot/dts/ingenic/Makefile
index f2b864f07850..7798262570da 100644
--- a/arch/mips/boot/dts/ingenic/Makefile
+++ b/arch/mips/boot/dts/ingenic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_JZ4740_QI_LB60)	+= qi_lb60.dtb
 dtb-$(CONFIG_JZ4780_CI20)	+= ci20.dtb
 
diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index fd138d9978c1..a4cc52214dbd 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -1,6 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "jz4780.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	compatible = "img,ci20", "ingenic,jz4780";
@@ -21,6 +23,13 @@
 		reg = <0x0 0x10000000
 		       0x30000000 0x30000000>;
 	};
+
+	eth0_power: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "eth0_power";
+		gpio = <&gpb 25 GPIO_ACTIVE_LOW>;
+		enable-active-high;
+	};
 };
 
 &ext {
@@ -123,6 +132,29 @@
 			};
 		};
 	};
+
+	dm9000@6 {
+		compatible = "davicom,dm9000";
+		davicom,no-eeprom;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&pins_nemc_cs6>;
+
+		reg = <6 0 1   /* addr */
+		       6 2 1>; /* data */
+
+		ingenic,nemc-tAS = <15>;
+		ingenic,nemc-tAH = <10>;
+		ingenic,nemc-tBP = <20>;
+		ingenic,nemc-tAW = <50>;
+		ingenic,nemc-tSTRV = <100>;
+
+		reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
+		vcc-supply = <&eth0_power>;
+
+		interrupt-parent = <&gpe>;
+		interrupts = <19 4>;
+	};
 };
 
 &bch {
@@ -165,4 +197,10 @@
 		groups = "nemc-cs1";
 		bias-disable;
 	};
+
+	pins_nemc_cs6: nemc-cs6 {
+		function = "nemc-cs6";
+		groups = "nemc-cs6";
+		bias-disable;
+	};
 };
diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi b/arch/mips/boot/dts/ingenic/jz4740.dtsi
index 2ca7ce7481f1..cd5185bb90ae 100644
--- a/arch/mips/boot/dts/ingenic/jz4740.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/jz4740-cgu.h>
 
 / {
diff --git a/arch/mips/boot/dts/ingenic/jz4780.dtsi b/arch/mips/boot/dts/ingenic/jz4780.dtsi
index 4853ef67b3ab..ff3298f29ec4 100644
--- a/arch/mips/boot/dts/ingenic/jz4780.dtsi
+++ b/arch/mips/boot/dts/ingenic/jz4780.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/jz4780-cgu.h>
 
 / {
@@ -44,6 +45,17 @@
 		#clock-cells = <1>;
 	};
 
+	rtc_dev: rtc@10003000 {
+		compatible = "ingenic,jz4780-rtc";
+		reg = <0x10003000 0x4c>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <32>;
+
+		clocks = <&cgu JZ4780_CLK_RTCLK>;
+		clock-names = "rtc";
+	};
+
 	pinctrl: pin-controller@10010000 {
 		compatible = "ingenic,jz4780-pinctrl";
 		reg = <0x10010000 0x600>;
diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts
index b715ee2ac2ee..76aaf8982554 100644
--- a/arch/mips/boot/dts/ingenic/qi_lb60.dts
+++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "jz4740.dtsi"
diff --git a/arch/mips/boot/dts/lantiq/Makefile b/arch/mips/boot/dts/lantiq/Makefile
index 0906c62141b9..0c50e3246a63 100644
--- a/arch/mips/boot/dts/lantiq/Makefile
+++ b/arch/mips/boot/dts/lantiq/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DT_EASY50712)	+= easy50712.dtb
 
 obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
diff --git a/arch/mips/boot/dts/lantiq/danube.dtsi b/arch/mips/boot/dts/lantiq/danube.dtsi
index d4c59e003708..2dd950181f8a 100644
--- a/arch/mips/boot/dts/lantiq/danube.dtsi
+++ b/arch/mips/boot/dts/lantiq/danube.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/lantiq/easy50712.dts b/arch/mips/boot/dts/lantiq/easy50712.dts
index b59962585dde..c37a33962f28 100644
--- a/arch/mips/boot/dts/lantiq/easy50712.dts
+++ b/arch/mips/boot/dts/lantiq/easy50712.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "danube.dtsi"
diff --git a/arch/mips/boot/dts/mti/Makefile b/arch/mips/boot/dts/mti/Makefile
index fcabd69b7030..5ee06f73c348 100644
--- a/arch/mips/boot/dts/mti/Makefile
+++ b/arch/mips/boot/dts/mti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_MIPS_MALTA)	+= malta.dtb
 dtb-$(CONFIG_LEGACY_BOARD_SEAD3)	+= sead3.dtb
 
diff --git a/arch/mips/boot/dts/mti/malta.dts b/arch/mips/boot/dts/mti/malta.dts
index ffe3a1508e72..9944e716eac8 100644
--- a/arch/mips/boot/dts/mti/malta.dts
+++ b/arch/mips/boot/dts/mti/malta.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/interrupt-controller/irq.h>
diff --git a/arch/mips/boot/dts/mti/sead3.dts b/arch/mips/boot/dts/mti/sead3.dts
index 4f8bc83c2960..192c26ff1d3d 100644
--- a/arch/mips/boot/dts/mti/sead3.dts
+++ b/arch/mips/boot/dts/mti/sead3.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /memreserve/ 0x00000000 0x00001000;	// reserved
diff --git a/arch/mips/boot/dts/netlogic/Makefile b/arch/mips/boot/dts/netlogic/Makefile
index 9868057140b5..1cb2fdbd8949 100644
--- a/arch/mips/boot/dts/netlogic/Makefile
+++ b/arch/mips/boot/dts/netlogic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DT_XLP_EVP)	+= xlp_evp.dtb
 dtb-$(CONFIG_DT_XLP_SVP)	+= xlp_svp.dtb
 dtb-$(CONFIG_DT_XLP_FVP)	+= xlp_fvp.dtb
diff --git a/arch/mips/boot/dts/netlogic/xlp_evp.dts b/arch/mips/boot/dts/netlogic/xlp_evp.dts
index ec16ec2d8d02..e63e55926e04 100644
--- a/arch/mips/boot/dts/netlogic/xlp_evp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_evp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XLP8XX Device Tree Source for EVP boards
  */
diff --git a/arch/mips/boot/dts/netlogic/xlp_fvp.dts b/arch/mips/boot/dts/netlogic/xlp_fvp.dts
index 4bcebe641d8e..d05abf13fb7d 100644
--- a/arch/mips/boot/dts/netlogic/xlp_fvp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_fvp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XLP2XX Device Tree Source for FVP boards
  */
diff --git a/arch/mips/boot/dts/netlogic/xlp_gvp.dts b/arch/mips/boot/dts/netlogic/xlp_gvp.dts
index b3ccb82ad7e4..d47de4851786 100644
--- a/arch/mips/boot/dts/netlogic/xlp_gvp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_gvp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XLP9XX Device Tree Source for GVP boards
  */
diff --git a/arch/mips/boot/dts/netlogic/xlp_rvp.dts b/arch/mips/boot/dts/netlogic/xlp_rvp.dts
index 3783639a318a..aa0faee194ec 100644
--- a/arch/mips/boot/dts/netlogic/xlp_rvp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_rvp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XLP5XX Device Tree Source for RVP boards
  */
diff --git a/arch/mips/boot/dts/netlogic/xlp_svp.dts b/arch/mips/boot/dts/netlogic/xlp_svp.dts
index 44d6640c1441..3bb0b2e08e4a 100644
--- a/arch/mips/boot/dts/netlogic/xlp_svp.dts
+++ b/arch/mips/boot/dts/netlogic/xlp_svp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XLP3XX Device Tree Source for SVP boards
  */
diff --git a/arch/mips/boot/dts/ni/169445.dts b/arch/mips/boot/dts/ni/169445.dts
new file mode 100644
index 000000000000..5389ef46c480
--- /dev/null
+++ b/arch/mips/boot/dts/ni/169445.dts
@@ -0,0 +1,100 @@
+/dts-v1/;
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "ni,169445";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "mti,mips14KEc";
+			clocks = <&baseclk>;
+			reg = <0>;
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x10000000>;
+	};
+
+	baseclk: baseclock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <50000000>;
+	};
+
+	cpu_intc: interrupt-controller {
+		#address-cells = <0>;
+		compatible = "mti,cpu-interrupt-controller";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+	};
+
+	ahb@1f300000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0x0 0x1f300000 0x80FFF>;
+
+		gpio1: gpio@10 {
+			compatible = "ni,169445-nand-gpio";
+			reg = <0x10 0x4>;
+			reg-names = "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+		};
+
+		gpio2: gpio@14 {
+			compatible = "ni,169445-nand-gpio";
+			reg = <0x14 0x4>;
+			reg-names = "dat";
+			gpio-controller;
+			#gpio-cells = <2>;
+			no-output;
+		};
+
+		nand@0 {
+			compatible = "gpio-control-nand";
+			nand-on-flash-bbt;
+			nand-ecc-mode = "soft_bch";
+			nand-ecc-step-size = <512>;
+			nand-ecc-strength = <4>;
+			reg = <0x0 4>;
+			gpios = <&gpio2 0 0>, /* rdy */
+				<&gpio1 1 0>, /* nce */
+				<&gpio1 2 0>, /* ale */
+				<&gpio1 3 0>, /* cle */
+				<&gpio1 4 0>; /* nwp */
+		};
+
+		serial@80000 {
+			compatible = "ns16550a";
+			reg = <0x80000 0x1000>;
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <6>;
+			clocks = <&baseclk>;
+			reg-shift = <0>;
+		};
+
+		ethernet@40000 {
+			compatible = "snps,dwmac-4.10a";
+			interrupt-parent = <&cpu_intc>;
+			interrupts = <5>;
+			interrupt-names = "macirq";
+			reg = <0x40000 0x2000>;
+			clock-names = "stmmaceth", "pclk";
+			clocks = <&baseclk>, <&baseclk>;
+
+			phy-mode = "rgmii";
+
+			fixed-link {
+				speed = <1000>;
+				full-duplex;
+			};
+		};
+	};
+};
diff --git a/arch/mips/boot/dts/ni/Makefile b/arch/mips/boot/dts/ni/Makefile
new file mode 100644
index 000000000000..66cfdffc51c2
--- /dev/null
+++ b/arch/mips/boot/dts/ni/Makefile
@@ -0,0 +1,7 @@
+dtb-$(CONFIG_FIT_IMAGE_FDT_NI169445)	+= 169445.dtb
+
+# Force kbuild to make empty built-in.o if necessary
+obj-					+= dummy.o
+
+always					:= $(dtb-y)
+clean-files				:= *.dtb *.dtb.S
diff --git a/arch/mips/boot/dts/pic32/Makefile b/arch/mips/boot/dts/pic32/Makefile
index 7ac790551ec9..a86ddd289cfd 100644
--- a/arch/mips/boot/dts/pic32/Makefile
+++ b/arch/mips/boot/dts/pic32/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DTB_PIC32_MZDA_SK)		+= pic32mzda_sk.dtb
 
 dtb-$(CONFIG_DTB_PIC32_NONE)		+= \
diff --git a/arch/mips/boot/dts/qca/Makefile b/arch/mips/boot/dts/qca/Makefile
index 63a9ddf048c9..eabd94eb59db 100644
--- a/arch/mips/boot/dts/qca/Makefile
+++ b/arch/mips/boot/dts/qca/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # All DTBs
 dtb-$(CONFIG_ATH79)			+= ar9132_tl_wr1043nd_v1.dtb
 dtb-$(CONFIG_ATH79)			+= ar9331_dpt_module.dtb
diff --git a/arch/mips/boot/dts/qca/ar9132.dtsi b/arch/mips/boot/dts/qca/ar9132.dtsi
index 302f0a8d2988..1fe561c5f90e 100644
--- a/arch/mips/boot/dts/qca/ar9132.dtsi
+++ b/arch/mips/boot/dts/qca/ar9132.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/ath79-clk.h>
 
 / {
diff --git a/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts b/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts
index 3c3b7ce5737b..3931033e47c8 100644
--- a/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts
+++ b/arch/mips/boot/dts/qca/ar9132_tl_wr1043nd_v1.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/mips/boot/dts/qca/ar9331.dtsi b/arch/mips/boot/dts/qca/ar9331.dtsi
index cf47ed4d8569..efd5f0722206 100644
--- a/arch/mips/boot/dts/qca/ar9331.dtsi
+++ b/arch/mips/boot/dts/qca/ar9331.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dt-bindings/clock/ath79-clk.h>
 
 / {
diff --git a/arch/mips/boot/dts/qca/ar9331_dpt_module.dts b/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
index 98e74500e79d..d4e4502daaa8 100644
--- a/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
+++ b/arch/mips/boot/dts/qca/ar9331_dpt_module.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/mips/boot/dts/qca/ar9331_dragino_ms14.dts b/arch/mips/boot/dts/qca/ar9331_dragino_ms14.dts
index 56f832076a69..4f95ccf17c4c 100644
--- a/arch/mips/boot/dts/qca/ar9331_dragino_ms14.dts
+++ b/arch/mips/boot/dts/qca/ar9331_dragino_ms14.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/mips/boot/dts/qca/ar9331_omega.dts b/arch/mips/boot/dts/qca/ar9331_omega.dts
index b2be3b04479d..f70f79c4d0d5 100644
--- a/arch/mips/boot/dts/qca/ar9331_omega.dts
+++ b/arch/mips/boot/dts/qca/ar9331_omega.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/mips/boot/dts/qca/ar9331_tl_mr3020.dts b/arch/mips/boot/dts/qca/ar9331_tl_mr3020.dts
index 919cf3b854a5..748131aea22e 100644
--- a/arch/mips/boot/dts/qca/ar9331_tl_mr3020.dts
+++ b/arch/mips/boot/dts/qca/ar9331_tl_mr3020.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include <dt-bindings/gpio/gpio.h>
diff --git a/arch/mips/boot/dts/ralink/Makefile b/arch/mips/boot/dts/ralink/Makefile
index 2a7225954bf6..a80eeeecf613 100644
--- a/arch/mips/boot/dts/ralink/Makefile
+++ b/arch/mips/boot/dts/ralink/Makefile
@@ -1,7 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_DTB_RT2880_EVAL)	+= rt2880_eval.dtb
 dtb-$(CONFIG_DTB_RT305X_EVAL)	+= rt3052_eval.dtb
 dtb-$(CONFIG_DTB_RT3883_EVAL)	+= rt3883_eval.dtb
 dtb-$(CONFIG_DTB_MT7620A_EVAL)	+= mt7620a_eval.dtb
+dtb-$(CONFIG_DTB_OMEGA2P)	+= omega2p.dtb
+dtb-$(CONFIG_DTB_VOCORE2)	+= vocore2.dtb
 
 obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
 
diff --git a/arch/mips/boot/dts/ralink/mt7620a.dtsi b/arch/mips/boot/dts/ralink/mt7620a.dtsi
index 793c0c7ca921..1f6e5320f486 100644
--- a/arch/mips/boot/dts/ralink/mt7620a.dtsi
+++ b/arch/mips/boot/dts/ralink/mt7620a.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/ralink/mt7620a_eval.dts b/arch/mips/boot/dts/ralink/mt7620a_eval.dts
index 709f58132f5c..8de8f89f31b8 100644
--- a/arch/mips/boot/dts/ralink/mt7620a_eval.dts
+++ b/arch/mips/boot/dts/ralink/mt7620a_eval.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "mt7620a.dtsi"
diff --git a/arch/mips/boot/dts/ralink/mt7628a.dtsi b/arch/mips/boot/dts/ralink/mt7628a.dtsi
new file mode 100644
index 000000000000..9ff7e8faaecc
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/mt7628a.dtsi
@@ -0,0 +1,126 @@
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "ralink,mt7628a-soc";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			compatible = "mti,mips24KEc";
+			device_type = "cpu";
+			reg = <0>;
+		};
+	};
+
+	resetc: reset-controller {
+		compatible = "ralink,rt2880-reset";
+		#reset-cells = <1>;
+	};
+
+	cpuintc: interrupt-controller {
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		compatible = "mti,cpu-interrupt-controller";
+	};
+
+	palmbus@10000000 {
+		compatible = "palmbus";
+		reg = <0x10000000 0x200000>;
+		ranges = <0x0 0x10000000 0x1FFFFF>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		sysc: system-controller@0 {
+			compatible = "ralink,mt7620a-sysc", "syscon";
+			reg = <0x0 0x100>;
+		};
+
+		intc: interrupt-controller@200 {
+			compatible = "ralink,rt2880-intc";
+			reg = <0x200 0x100>;
+
+			interrupt-controller;
+			#interrupt-cells = <1>;
+
+			resets = <&resetc 9>;
+			reset-names = "intc";
+
+			interrupt-parent = <&cpuintc>;
+			interrupts = <2>;
+
+			ralink,intc-registers = <0x9c 0xa0
+						 0x6c 0xa4
+						 0x80 0x78>;
+		};
+
+		memory-controller@300 {
+			compatible = "ralink,mt7620a-memc";
+			reg = <0x300 0x100>;
+		};
+
+		uart0: uartlite@c00 {
+			compatible = "ns16550a";
+			reg = <0xc00 0x100>;
+
+			resets = <&resetc 12>;
+			reset-names = "uart0";
+
+			interrupt-parent = <&intc>;
+			interrupts = <20>;
+
+			reg-shift = <2>;
+		};
+
+		uart1: uart1@d00 {
+			compatible = "ns16550a";
+			reg = <0xd00 0x100>;
+
+			resets = <&resetc 19>;
+			reset-names = "uart1";
+
+			interrupt-parent = <&intc>;
+			interrupts = <21>;
+
+			reg-shift = <2>;
+		};
+
+		uart2: uart2@e00 {
+			compatible = "ns16550a";
+			reg = <0xe00 0x100>;
+
+			resets = <&resetc 20>;
+			reset-names = "uart2";
+
+			interrupt-parent = <&intc>;
+			interrupts = <22>;
+
+			reg-shift = <2>;
+		};
+	};
+
+	usb_phy: usb-phy@10120000 {
+		compatible = "mediatek,mt7628-usbphy";
+		reg = <0x10120000 0x1000>;
+
+		#phy-cells = <0>;
+
+		ralink,sysctl = <&sysc>;
+		resets = <&resetc 22 &resetc 25>;
+		reset-names = "host", "device";
+	};
+
+	ehci@101c0000 {
+		compatible = "generic-ehci";
+		reg = <0x101c0000 0x1000>;
+
+		phys = <&usb_phy>;
+		phy-names = "usb";
+
+		interrupt-parent = <&intc>;
+		interrupts = <18>;
+	};
+};
diff --git a/arch/mips/boot/dts/ralink/omega2p.dts b/arch/mips/boot/dts/ralink/omega2p.dts
new file mode 100644
index 000000000000..5884fd48f59a
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/omega2p.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+/include/ "mt7628a.dtsi"
+
+/ {
+	compatible = "onion,omega2+", "ralink,mt7688a-soc", "ralink,mt7628a-soc";
+	model = "Onion Omega2+";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+		stdout-path = &uart0;
+	};
+};
diff --git a/arch/mips/boot/dts/ralink/rt2880.dtsi b/arch/mips/boot/dts/ralink/rt2880.dtsi
index fb2faef0ab79..8fc1987d9063 100644
--- a/arch/mips/boot/dts/ralink/rt2880.dtsi
+++ b/arch/mips/boot/dts/ralink/rt2880.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/ralink/rt2880_eval.dts b/arch/mips/boot/dts/ralink/rt2880_eval.dts
index 0a685db093d4..759bc1dd5b83 100644
--- a/arch/mips/boot/dts/ralink/rt2880_eval.dts
+++ b/arch/mips/boot/dts/ralink/rt2880_eval.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "rt2880.dtsi"
diff --git a/arch/mips/boot/dts/ralink/rt3050.dtsi b/arch/mips/boot/dts/ralink/rt3050.dtsi
index d3cb57f985da..23062333a76d 100644
--- a/arch/mips/boot/dts/ralink/rt3050.dtsi
+++ b/arch/mips/boot/dts/ralink/rt3050.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/ralink/rt3052_eval.dts b/arch/mips/boot/dts/ralink/rt3052_eval.dts
index ec9e9a035541..674efdd42e74 100644
--- a/arch/mips/boot/dts/ralink/rt3052_eval.dts
+++ b/arch/mips/boot/dts/ralink/rt3052_eval.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "rt3050.dtsi"
diff --git a/arch/mips/boot/dts/ralink/rt3883.dtsi b/arch/mips/boot/dts/ralink/rt3883.dtsi
index 3d6fc9afdaf6..61132cf157e5 100644
--- a/arch/mips/boot/dts/ralink/rt3883.dtsi
+++ b/arch/mips/boot/dts/ralink/rt3883.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/ralink/rt3883_eval.dts b/arch/mips/boot/dts/ralink/rt3883_eval.dts
index e8df21a5d10d..c22bc84df219 100644
--- a/arch/mips/boot/dts/ralink/rt3883_eval.dts
+++ b/arch/mips/boot/dts/ralink/rt3883_eval.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 /include/ "rt3883.dtsi"
diff --git a/arch/mips/boot/dts/ralink/vocore2.dts b/arch/mips/boot/dts/ralink/vocore2.dts
new file mode 100644
index 000000000000..fa8a5f8f236a
--- /dev/null
+++ b/arch/mips/boot/dts/ralink/vocore2.dts
@@ -0,0 +1,18 @@
+/dts-v1/;
+
+#include "mt7628a.dtsi"
+
+/ {
+	compatible = "vocore,vocore2", "ralink,mt7628a-soc";
+	model = "VoCore2";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x8000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS2,115200";
+		stdout-path = &uart2;
+	};
+};
diff --git a/arch/mips/boot/dts/xilfpga/Makefile b/arch/mips/boot/dts/xilfpga/Makefile
index 913a752a9ff1..498ac081e2fe 100644
--- a/arch/mips/boot/dts/xilfpga/Makefile
+++ b/arch/mips/boot/dts/xilfpga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_XILFPGA_NEXYS4DDR)	+= nexys4ddr.dtb
 
 obj-y				+= $(patsubst %.dtb, %.dtb.o, $(dtb-y))
diff --git a/arch/mips/boot/dts/xilfpga/microAptiv.dtsi b/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
index 81d518e75785..87b2b1f9a1b0 100644
--- a/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
+++ b/arch/mips/boot/dts/xilfpga/microAptiv.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	#address-cells = <1>;
 	#size-cells = <1>;
diff --git a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
index 09a62f2e2f8f..41fee03dc312 100644
--- a/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
+++ b/arch/mips/boot/dts/xilfpga/nexys4ddr.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 #include "microAptiv.dtsi"
diff --git a/arch/mips/boot/ecoff.h b/arch/mips/boot/ecoff.h
index 7a75ce2c1bcd..b3e73c22c345 100644
--- a/arch/mips/boot/ecoff.h
+++ b/arch/mips/boot/ecoff.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Some ECOFF definitions.
  */
diff --git a/arch/mips/boot/tools/Makefile b/arch/mips/boot/tools/Makefile
index d232a68f6c8a..5f8e737348eb 100644
--- a/arch/mips/boot/tools/Makefile
+++ b/arch/mips/boot/tools/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 hostprogs-y	+= relocs
 relocs-objs	+= relocs_32.o
diff --git a/arch/mips/boot/tools/relocs.c b/arch/mips/boot/tools/relocs.c
index b9cbf78527e8..1bf53f3524b3 100644
--- a/arch/mips/boot/tools/relocs.c
+++ b/arch/mips/boot/tools/relocs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* This is included from relocs_32/64.c */
 
 #define ElfW(type)		_ElfW(ELF_BITS, type)
diff --git a/arch/mips/boot/tools/relocs.h b/arch/mips/boot/tools/relocs.h
index 3cf676f49e18..607ff0103064 100644
--- a/arch/mips/boot/tools/relocs.h
+++ b/arch/mips/boot/tools/relocs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef RELOCS_H
 #define RELOCS_H
 
diff --git a/arch/mips/boot/tools/relocs_32.c b/arch/mips/boot/tools/relocs_32.c
index 915bdc07f5ed..428bea489303 100644
--- a/arch/mips/boot/tools/relocs_32.c
+++ b/arch/mips/boot/tools/relocs_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "relocs.h"
 
 #define ELF_BITS 32
diff --git a/arch/mips/boot/tools/relocs_64.c b/arch/mips/boot/tools/relocs_64.c
index 06066e6ac2f9..154015d745d6 100644
--- a/arch/mips/boot/tools/relocs_64.c
+++ b/arch/mips/boot/tools/relocs_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "relocs.h"
 
 #define ELF_BITS 64
diff --git a/arch/mips/boot/tools/relocs_main.c b/arch/mips/boot/tools/relocs_main.c
index d8fe2343b8d0..e2453a564b11 100644
--- a/arch/mips/boot/tools/relocs_main.c
+++ b/arch/mips/boot/tools/relocs_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <stdio.h>
 #include <stdint.h>
diff --git a/arch/mips/cavium-octeon/Kconfig b/arch/mips/cavium-octeon/Kconfig
index 5c0b56203bae..204a1670fd9b 100644
--- a/arch/mips/cavium-octeon/Kconfig
+++ b/arch/mips/cavium-octeon/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if CPU_CAVIUM_OCTEON
 
 config CAVIUM_CN63XXP1
diff --git a/arch/mips/cavium-octeon/crypto/Makefile b/arch/mips/cavium-octeon/crypto/Makefile
index f7aa9d5d3b87..db26c73fa0ed 100644
--- a/arch/mips/cavium-octeon/crypto/Makefile
+++ b/arch/mips/cavium-octeon/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # OCTEON-specific crypto modules.
 #
diff --git a/arch/mips/cavium-octeon/executive/Makefile b/arch/mips/cavium-octeon/executive/Makefile
index b6d6e841a984..50b427879465 100644
--- a/arch/mips/cavium-octeon/executive/Makefile
+++ b/arch/mips/cavium-octeon/executive/Makefile
@@ -16,4 +16,4 @@ obj-y += cvmx-pko.o cvmx-spi.o cvmx-cmd-queue.o \
 	cvmx-helper-loop.o cvmx-helper-spi.o cvmx-helper-util.o \
 	cvmx-interrupt-decodes.o cvmx-interrupt-rsl.o
 
-obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o
+obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o cvmx-boot-vector.o
diff --git a/arch/mips/cavium-octeon/executive/cvmx-boot-vector.c b/arch/mips/cavium-octeon/executive/cvmx-boot-vector.c
new file mode 100644
index 000000000000..b7019d21808e
--- /dev/null
+++ b/arch/mips/cavium-octeon/executive/cvmx-boot-vector.c
@@ -0,0 +1,167 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2004-2017 Cavium, Inc.
+ */
+
+
+/*
+  We install this program at the bootvector:
+------------------------------------
+	.set noreorder
+	.set nomacro
+	.set noat
+reset_vector:
+	dmtc0	$k0, $31, 0	# Save $k0 to DESAVE
+	dmtc0	$k1, $31, 3	# Save $k1 to KScratch2
+
+	mfc0	$k0, $12, 0	# Status
+	mfc0	$k1, $15, 1	# Ebase
+
+	ori	$k0, 0x84	# Enable 64-bit addressing, set
+				# ERL (should already be set)
+	andi	$k1, 0x3ff	# mask out core ID
+
+	mtc0	$k0, $12, 0	# Status
+	sll	$k1, 5
+
+	lui	$k0, 0xbfc0
+	cache	17, 0($0)	# Core-14345, clear L1 Dcache virtual
+				# tags if the core hit an NMI
+
+	ld	$k0, 0x78($k0)	# k0 <- (bfc00078) pointer to the reset vector
+	synci	0($0)		# Invalidate ICache to get coherent
+				# view of target code.
+
+	daddu	$k0, $k0, $k1
+	nop
+
+	ld	$k0, 0($k0)	# k0 <- core specific target address
+	dmfc0	$k1, $31, 3	# Restore $k1 from KScratch2
+
+	beqz	$k0, wait_loop	# Spin in wait loop
+	nop
+
+	jr	$k0
+	nop
+
+	nop			# NOPs needed here to fill delay slots
+	nop			# on endian reversal of previous instructions
+
+wait_loop:
+	wait
+	nop
+
+	b	wait_loop
+	nop
+
+	nop
+	nop
+------------------------------------
+
+0000000000000000 <reset_vector>:
+   0:	40baf800	dmtc0	k0,c0_desave
+   4:	40bbf803	dmtc0	k1,c0_kscratch2
+
+   8:	401a6000	mfc0	k0,c0_status
+   c:	401b7801	mfc0	k1,c0_ebase
+
+  10:	375a0084	ori	k0,k0,0x84
+  14:	337b03ff	andi	k1,k1,0x3ff
+
+  18:	409a6000	mtc0	k0,c0_status
+  1c:	001bd940	sll	k1,k1,0x5
+
+  20:	3c1abfc0	lui	k0,0xbfc0
+  24:	bc110000	cache	0x11,0(zero)
+
+  28:	df5a0078	ld	k0,120(k0)
+  2c:	041f0000	synci	0(zero)
+
+  30:	035bd02d	daddu	k0,k0,k1
+  34:	00000000	nop
+
+  38:	df5a0000	ld	k0,0(k0)
+  3c:	403bf803	dmfc0	k1,c0_kscratch2
+
+  40:	13400005	beqz	k0,58 <wait_loop>
+  44:	00000000	nop
+
+  48:	03400008	jr	k0
+  4c:	00000000	nop
+
+  50:	00000000	nop
+  54:	00000000	nop
+
+0000000000000058 <wait_loop>:
+  58:	42000020	wait
+  5c:	00000000	nop
+
+  60:	1000fffd	b	58 <wait_loop>
+  64:	00000000	nop
+
+  68:	00000000	nop
+  6c:	00000000	nop
+
+ */
+
+#include <asm/octeon/cvmx-boot-vector.h>
+
+static unsigned long long _cvmx_bootvector_data[16] = {
+	0x40baf80040bbf803ull,  /* patch low order 8-bits if no KScratch*/
+	0x401a6000401b7801ull,
+	0x375a0084337b03ffull,
+	0x409a6000001bd940ull,
+	0x3c1abfc0bc110000ull,
+	0xdf5a0078041f0000ull,
+	0x035bd02d00000000ull,
+	0xdf5a0000403bf803ull,  /* patch low order 8-bits if no KScratch*/
+	0x1340000500000000ull,
+	0x0340000800000000ull,
+	0x0000000000000000ull,
+	0x4200002000000000ull,
+	0x1000fffd00000000ull,
+	0x0000000000000000ull,
+	OCTEON_BOOT_MOVEABLE_MAGIC1,
+	0 /* To be filled in with address of vector block*/
+};
+
+/* 2^10 CPUs */
+#define VECTOR_TABLE_SIZE (1024 * sizeof(struct cvmx_boot_vector_element))
+
+static void cvmx_boot_vector_init(void *mem)
+{
+	uint64_t kseg0_mem;
+	int i;
+
+	memset(mem, 0, VECTOR_TABLE_SIZE);
+	kseg0_mem = cvmx_ptr_to_phys(mem) | 0x8000000000000000ull;
+
+	for (i = 0; i < 15; i++) {
+		uint64_t v = _cvmx_bootvector_data[i];
+
+		if (OCTEON_IS_OCTEON1PLUS() && (i == 0 || i == 7))
+			v &= 0xffffffff00000000ull; /* KScratch not availble. */
+		cvmx_write_csr(CVMX_MIO_BOOT_LOC_ADR, i * 8);
+		cvmx_write_csr(CVMX_MIO_BOOT_LOC_DAT, v);
+	}
+	cvmx_write_csr(CVMX_MIO_BOOT_LOC_ADR, 15 * 8);
+	cvmx_write_csr(CVMX_MIO_BOOT_LOC_DAT, kseg0_mem);
+	cvmx_write_csr(CVMX_MIO_BOOT_LOC_CFGX(0), 0x81fc0000);
+}
+
+/**
+ * Get a pointer to the per-core table of reset vector pointers
+ *
+ */
+struct cvmx_boot_vector_element *cvmx_boot_vector_get(void)
+{
+	struct cvmx_boot_vector_element *ret;
+
+	ret = cvmx_bootmem_alloc_named_range_once(VECTOR_TABLE_SIZE, 0,
+		(1ull << 32) - 1, 8, "__boot_vector1__", cvmx_boot_vector_init);
+	return ret;
+}
+EXPORT_SYMBOL(cvmx_boot_vector_get);
diff --git a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
index 8d54d774933c..94d97ebfa036 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-bootmem.c
@@ -44,6 +44,55 @@ static struct cvmx_bootmem_desc *cvmx_bootmem_desc;
 
 /* See header file for descriptions of functions */
 
+/**
+ * This macro returns the size of a member of a structure.
+ * Logically it is the same as "sizeof(s::field)" in C++, but
+ * C lacks the "::" operator.
+ */
+#define SIZEOF_FIELD(s, field) sizeof(((s *)NULL)->field)
+
+/**
+ * This macro returns a member of the
+ * cvmx_bootmem_named_block_desc_t structure. These members can't
+ * be directly addressed as they might be in memory not directly
+ * reachable. In the case where bootmem is compiled with
+ * LINUX_HOST, the structure itself might be located on a remote
+ * Octeon. The argument "field" is the member name of the
+ * cvmx_bootmem_named_block_desc_t to read. Regardless of the type
+ * of the field, the return type is always a uint64_t. The "addr"
+ * parameter is the physical address of the structure.
+ */
+#define CVMX_BOOTMEM_NAMED_GET_FIELD(addr, field)			\
+	__cvmx_bootmem_desc_get(addr,					\
+		offsetof(struct cvmx_bootmem_named_block_desc, field),	\
+		SIZEOF_FIELD(struct cvmx_bootmem_named_block_desc, field))
+
+/**
+ * This function is the implementation of the get macros defined
+ * for individual structure members. The argument are generated
+ * by the macros inorder to read only the needed memory.
+ *
+ * @param base   64bit physical address of the complete structure
+ * @param offset Offset from the beginning of the structure to the member being
+ *               accessed.
+ * @param size   Size of the structure member.
+ *
+ * @return Value of the structure member promoted into a uint64_t.
+ */
+static inline uint64_t __cvmx_bootmem_desc_get(uint64_t base, int offset,
+					       int size)
+{
+	base = (1ull << 63) | (base + offset);
+	switch (size) {
+	case 4:
+		return cvmx_read64_uint32(base);
+	case 8:
+		return cvmx_read64_uint64(base);
+	default:
+		return 0;
+	}
+}
+
 /*
  * Wrapper functions are provided for reading/writing the size and
  * next block values as these may not be directly addressible (in 32
@@ -98,6 +147,42 @@ void *cvmx_bootmem_alloc(uint64_t size, uint64_t alignment)
 	return cvmx_bootmem_alloc_range(size, alignment, 0, 0);
 }
 
+void *cvmx_bootmem_alloc_named_range_once(uint64_t size, uint64_t min_addr,
+					  uint64_t max_addr, uint64_t align,
+					  char *name,
+					  void (*init) (void *))
+{
+	int64_t addr;
+	void *ptr;
+	uint64_t named_block_desc_addr;
+
+	named_block_desc_addr = (uint64_t)
+		cvmx_bootmem_phy_named_block_find(name,
+						  (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+	if (named_block_desc_addr) {
+		addr = CVMX_BOOTMEM_NAMED_GET_FIELD(named_block_desc_addr,
+						    base_addr);
+		return cvmx_phys_to_ptr(addr);
+	}
+
+	addr = cvmx_bootmem_phy_named_block_alloc(size, min_addr, max_addr,
+						  align, name,
+						  (uint32_t)CVMX_BOOTMEM_FLAG_NO_LOCKING);
+
+	if (addr < 0)
+		return NULL;
+	ptr = cvmx_phys_to_ptr(addr);
+
+	if (init)
+		init(ptr);
+	else
+		memset(ptr, 0, size);
+
+	return ptr;
+}
+EXPORT_SYMBOL(cvmx_bootmem_alloc_named_range_once);
+
 void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
 				     uint64_t max_addr, uint64_t align,
 				     char *name)
diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c
index c1eb1ff7c800..5b3a3f6a9ad3 100644
--- a/arch/mips/cavium-octeon/octeon-irq.c
+++ b/arch/mips/cavium-octeon/octeon-irq.c
@@ -2963,3 +2963,12 @@ void octeon_fixup_irqs(void)
 }
 
 #endif /* CONFIG_HOTPLUG_CPU */
+
+struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block)
+{
+	struct octeon_ciu3_info *ciu3_info;
+
+	ciu3_info = octeon_ciu3_info_per_node[node & CVMX_NODE_MASK];
+	return ciu3_info->domain[block];
+}
+EXPORT_SYMBOL(octeon_irq_get_block_domain);
diff --git a/arch/mips/cavium-octeon/smp.c b/arch/mips/cavium-octeon/smp.c
index 3de786545ded..75e7c8625659 100644
--- a/arch/mips/cavium-octeon/smp.c
+++ b/arch/mips/cavium-octeon/smp.c
@@ -205,7 +205,7 @@ int plat_post_relocation(long offset)
  * Firmware CPU startup hook
  *
  */
-static void octeon_boot_secondary(int cpu, struct task_struct *idle)
+static int octeon_boot_secondary(int cpu, struct task_struct *idle)
 {
 	int count;
 
@@ -223,8 +223,12 @@ static void octeon_boot_secondary(int cpu, struct task_struct *idle)
 		udelay(1);
 		count--;
 	}
-	if (count == 0)
+	if (count == 0) {
 		pr_err("Secondary boot timeout\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
 }
 
 /**
@@ -408,7 +412,7 @@ late_initcall(register_cavium_notifier);
 
 #endif	/* CONFIG_HOTPLUG_CPU */
 
-struct plat_smp_ops octeon_smp_ops = {
+const struct plat_smp_ops octeon_smp_ops = {
 	.send_ipi_single	= octeon_send_ipi_single,
 	.send_ipi_mask		= octeon_send_ipi_mask,
 	.init_secondary		= octeon_init_secondary,
@@ -485,7 +489,7 @@ static void octeon_78xx_send_ipi_mask(const struct cpumask *mask,
 		octeon_78xx_send_ipi_single(cpu, action);
 }
 
-static struct plat_smp_ops octeon_78xx_smp_ops = {
+static const struct plat_smp_ops octeon_78xx_smp_ops = {
 	.send_ipi_single	= octeon_78xx_send_ipi_single,
 	.send_ipi_mask		= octeon_78xx_send_ipi_mask,
 	.init_secondary		= octeon_init_secondary,
@@ -501,7 +505,7 @@ static struct plat_smp_ops octeon_78xx_smp_ops = {
 
 void __init octeon_setup_smp(void)
 {
-	struct plat_smp_ops *ops;
+	const struct plat_smp_ops *ops;
 
 	if (octeon_has_feature(OCTEON_FEATURE_CIU3))
 		ops = &octeon_78xx_smp_ops;
diff --git a/arch/mips/configs/cavium_octeon_defconfig b/arch/mips/configs/cavium_octeon_defconfig
index e5b18f1a31a0..490b12af103c 100644
--- a/arch/mips/configs/cavium_octeon_defconfig
+++ b/arch/mips/configs/cavium_octeon_defconfig
@@ -60,11 +60,8 @@ CONFIG_BLK_DEV_SD=y
 CONFIG_ATA=y
 CONFIG_SATA_AHCI=y
 CONFIG_SATA_AHCI_PLATFORM=y
-CONFIG_AHCI_OCTEON=y
 CONFIG_PATA_OCTEON_CF=y
-CONFIG_SATA_SIL=y
 CONFIG_NETDEVICES=y
-CONFIG_MII=y
 # CONFIG_NET_VENDOR_3COM is not set
 # CONFIG_NET_VENDOR_ADAPTEC is not set
 # CONFIG_NET_VENDOR_ALTEON is not set
@@ -121,22 +118,30 @@ CONFIG_SPI=y
 CONFIG_SPI_OCTEON=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
-CONFIG_USB=m
-CONFIG_USB_EHCI_HCD=m
-CONFIG_USB_EHCI_HCD_PLATFORM=m
-CONFIG_USB_OHCI_HCD=m
-CONFIG_USB_OHCI_HCD_PLATFORM=m
+CONFIG_USB=y
+# CONFIG_USB_PCI is not set
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
+CONFIG_USB_STORAGE=y
+CONFIG_USB_DWC3=y
 CONFIG_MMC=y
 # CONFIG_PWRSEQ_EMMC is not set
 # CONFIG_PWRSEQ_SIMPLE is not set
-# CONFIG_MMC_BLOCK_BOUNCE is not set
 CONFIG_MMC_CAVIUM_OCTEON=y
+CONFIG_EDAC=y
+CONFIG_EDAC_OCTEON_PC=y
+CONFIG_EDAC_OCTEON_L2C=y
+CONFIG_EDAC_OCTEON_LMC=y
+CONFIG_EDAC_OCTEON_PCI=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_STAGING=y
 CONFIG_OCTEON_ETHERNET=y
-CONFIG_OCTEON_USB=m
 # CONFIG_IOMMU_SUPPORT is not set
+CONFIG_RAS=y
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
 CONFIG_EXT4_FS_SECURITY=y
diff --git a/arch/mips/configs/ci20_defconfig b/arch/mips/configs/ci20_defconfig
index b42cfa7865f9..5ea3104a3aca 100644
--- a/arch/mips/configs/ci20_defconfig
+++ b/arch/mips/configs/ci20_defconfig
@@ -91,6 +91,7 @@ CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_I2C=y
 CONFIG_I2C_JZ4780=y
 CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_INGENIC=y
 # CONFIG_HWMON is not set
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_DEBUG=y
@@ -99,6 +100,8 @@ CONFIG_REGULATOR_FIXED_VOLTAGE=y
 # CONFIG_HID is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_MMC=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_JZ4740=y
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_MEMORY=y
 # CONFIG_DNOTIFY is not set
diff --git a/arch/mips/configs/generic/board-ni169445.config b/arch/mips/configs/generic/board-ni169445.config
new file mode 100644
index 000000000000..f72223b366ca
--- /dev/null
+++ b/arch/mips/configs/generic/board-ni169445.config
@@ -0,0 +1,30 @@
+# require CONFIG_CPU_MIPS32_R2=y
+# require CONFIG_CPU_LITTLE_ENDIAN=y
+
+CONFIG_FIT_IMAGE_FDT_NI169445=y
+
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+
+CONFIG_MTD=y
+CONFIG_MTD_BLOCK=y
+CONFIG_MTD_CMDLINE_PARTS=y
+
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_ECC_BCH=y
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_GPIO=y
+CONFIG_MTD_NAND_IDS=y
+
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BLOCK=y
+
+CONFIG_NETDEVICES=y
+CONFIG_STMMAC_ETH=y
+CONFIG_STMMAC_PLATFORM=y
+CONFIG_DWMAC_GENERIC=y
diff --git a/arch/mips/configs/generic/board-sead-3.config b/arch/mips/configs/generic/board-sead-3.config
index 3b5e1ac579eb..df49a592dbb5 100644
--- a/arch/mips/configs/generic/board-sead-3.config
+++ b/arch/mips/configs/generic/board-sead-3.config
@@ -1,3 +1,5 @@
+# require CONFIG_32BIT=y
+
 CONFIG_LEGACY_BOARD_SEAD3=y
 
 CONFIG_AUXDISPLAY=y
diff --git a/arch/mips/configs/generic_defconfig b/arch/mips/configs/generic_defconfig
index 91aacf2ef26d..26b1cd5ffbf5 100644
--- a/arch/mips/configs/generic_defconfig
+++ b/arch/mips/configs/generic_defconfig
@@ -3,7 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_MIPS_CPS=y
 CONFIG_CPU_HAS_MSA=y
 CONFIG_HIGHMEM=y
-CONFIG_NR_CPUS=2
+CONFIG_NR_CPUS=16
 CONFIG_MIPS_O32_FP64_SUPPORT=y
 CONFIG_SYSVIPC=y
 CONFIG_NO_HZ_IDLE=y
@@ -61,7 +61,6 @@ CONFIG_HID_KENSINGTON=y
 CONFIG_HID_LOGITECH=y
 CONFIG_HID_MICROSOFT=y
 CONFIG_HID_MONTEREY=y
-# CONFIG_USB_SUPPORT is not set
 # CONFIG_MIPS_PLATFORM_DEVICES is not set
 # CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT4_FS=y
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index b1911816337c..55438fc9991e 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -111,12 +111,8 @@ CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m
 CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
 CONFIG_X25=m
 CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
 CONFIG_WAN_ROUTER=m
 CONFIG_NET_SCHED=y
 CONFIG_NET_SCH_CBQ=m
diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig
index 1ec8ed8d05d1..02be95c1b712 100644
--- a/arch/mips/configs/lemote2f_defconfig
+++ b/arch/mips/configs/lemote2f_defconfig
@@ -37,7 +37,6 @@ CONFIG_PM=y
 CONFIG_HIBERNATION=y
 CONFIG_PM_STD_PARTITION="/dev/hda3"
 CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_DEBUG=y
 CONFIG_CPU_FREQ_STAT=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=m
diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig
index 078ecac071ab..396408404487 100644
--- a/arch/mips/configs/malta_defconfig
+++ b/arch/mips/configs/malta_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
 CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
 CONFIG_NR_CPUS=8
 CONFIG_HZ_100=y
 CONFIG_SYSVIPC=y
diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig
index 80ecd94ed126..5691673a3327 100644
--- a/arch/mips/configs/malta_kvm_defconfig
+++ b/arch/mips/configs/malta_kvm_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
 CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
 CONFIG_NR_CPUS=8
 CONFIG_HZ_100=y
 CONFIG_SYSVIPC=y
diff --git a/arch/mips/configs/malta_kvm_guest_defconfig b/arch/mips/configs/malta_kvm_guest_defconfig
index 35ad1f8d1a79..e9cadb37d684 100644
--- a/arch/mips/configs/malta_kvm_guest_defconfig
+++ b/arch/mips/configs/malta_kvm_guest_defconfig
@@ -3,6 +3,7 @@ CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
 CONFIG_KVM_GUEST=y
 CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_MIPS_MT_SMP is not set
 CONFIG_HZ_100=y
 CONFIG_SYSVIPC=y
 CONFIG_NO_HZ=y
diff --git a/arch/mips/configs/maltasmvp_defconfig b/arch/mips/configs/maltasmvp_defconfig
index 55b68b981b05..d8c8f5fb8918 100644
--- a/arch/mips/configs/maltasmvp_defconfig
+++ b/arch/mips/configs/maltasmvp_defconfig
@@ -2,7 +2,6 @@ CONFIG_MIPS_MALTA=y
 CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
 CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
 CONFIG_SCHED_SMT=y
 CONFIG_MIPS_CPS=y
 CONFIG_NR_CPUS=8
diff --git a/arch/mips/configs/maltasmvp_eva_defconfig b/arch/mips/configs/maltasmvp_eva_defconfig
index 5ca590cf1635..04827bc9f87f 100644
--- a/arch/mips/configs/maltasmvp_eva_defconfig
+++ b/arch/mips/configs/maltasmvp_eva_defconfig
@@ -3,7 +3,6 @@ CONFIG_CPU_LITTLE_ENDIAN=y
 CONFIG_CPU_MIPS32_R2=y
 CONFIG_CPU_MIPS32_3_5_FEATURES=y
 CONFIG_PAGE_SIZE_16KB=y
-CONFIG_MIPS_MT_SMP=y
 CONFIG_SCHED_SMT=y
 CONFIG_MIPS_CPS=y
 CONFIG_NR_CPUS=8
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index 4011f1869e72..c3d0d0a6e044 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -146,12 +146,8 @@ CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m
 CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
 CONFIG_X25=m
 CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
 CONFIG_WAN_ROUTER=m
 CONFIG_NET_SCHED=y
 CONFIG_NET_SCH_CBQ=m
diff --git a/arch/mips/configs/nlm_xlp_defconfig b/arch/mips/configs/nlm_xlp_defconfig
index 5720ce23e9aa..7357248b3d7a 100644
--- a/arch/mips/configs/nlm_xlp_defconfig
+++ b/arch/mips/configs/nlm_xlp_defconfig
@@ -259,7 +259,6 @@ CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m
 CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
 CONFIG_X25=m
 CONFIG_LAPB=m
 CONFIG_WAN_ROUTER=m
diff --git a/arch/mips/configs/nlm_xlr_defconfig b/arch/mips/configs/nlm_xlr_defconfig
index fea56c535d92..1e18fd7de209 100644
--- a/arch/mips/configs/nlm_xlr_defconfig
+++ b/arch/mips/configs/nlm_xlr_defconfig
@@ -240,12 +240,8 @@ CONFIG_ATALK=m
 CONFIG_DEV_APPLETALK=m
 CONFIG_IPDDP=m
 CONFIG_IPDDP_ENCAP=y
-CONFIG_IPDDP_DECAP=y
 CONFIG_X25=m
 CONFIG_LAPB=m
-CONFIG_ECONET=m
-CONFIG_ECONET_AUNUDP=y
-CONFIG_ECONET_NATIVE=y
 CONFIG_WAN_ROUTER=m
 CONFIG_PHONET=m
 CONFIG_IEEE802154=m
diff --git a/arch/mips/configs/omega2p_defconfig b/arch/mips/configs/omega2p_defconfig
new file mode 100644
index 000000000000..e2731c3cc7e7
--- /dev/null
+++ b/arch/mips/configs/omega2p_defconfig
@@ -0,0 +1,129 @@
+CONFIG_RALINK=y
+CONFIG_SOC_MT7620=y
+CONFIG_DTB_OMEGA2P=y
+CONFIG_CPU_MIPS32_R2=y
+# CONFIG_COMPACTION is not set
+CONFIG_HZ_100=y
+CONFIG_PREEMPT=y
+# CONFIG_SECCOMP is not set
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_NETDEVICES=y
+# CONFIG_ETHERNET is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=2
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=3
+CONFIG_SERIAL_8250_RUNTIME_UARTS=3
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_MMC=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_MEMORY=y
+CONFIG_PHY_RALINK_USB=y
+# CONFIG_DNOTIFY is not set
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_CONFIGFS_FS=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_UTF8=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_PANIC_TIMEOUT=10
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_STACKTRACE=y
+# CONFIG_FTRACE is not set
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRC16=y
+CONFIG_XZ_DEC=y
diff --git a/arch/mips/configs/pistachio_defconfig b/arch/mips/configs/pistachio_defconfig
index 3598d58aac30..b22a3cf149b6 100644
--- a/arch/mips/configs/pistachio_defconfig
+++ b/arch/mips/configs/pistachio_defconfig
@@ -47,6 +47,8 @@ CONFIG_IP_ADVANCED_ROUTER=y
 CONFIG_IP_MULTIPLE_TABLES=y
 CONFIG_IP_ROUTE_MULTIPATH=y
 CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
 CONFIG_IP_MROUTE=y
 CONFIG_IP_PIMSM_V1=y
 CONFIG_IP_PIMSM_V2=y
@@ -292,7 +294,8 @@ CONFIG_SQUASHFS_LZO=y
 CONFIG_PSTORE=y
 CONFIG_PSTORE_CONSOLE=y
 CONFIG_PSTORE_RAM=y
-# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NFS_FS=y
+CONFIG_ROOT_NFS=y
 CONFIG_NLS_DEFAULT="utf8"
 CONFIG_NLS_CODEPAGE_437=m
 CONFIG_NLS_ASCII=m
diff --git a/arch/mips/configs/vocore2_defconfig b/arch/mips/configs/vocore2_defconfig
new file mode 100644
index 000000000000..9121e4194a63
--- /dev/null
+++ b/arch/mips/configs/vocore2_defconfig
@@ -0,0 +1,129 @@
+CONFIG_RALINK=y
+CONFIG_SOC_MT7620=y
+CONFIG_DTB_VOCORE2=y
+CONFIG_CPU_MIPS32_R2=y
+# CONFIG_COMPACTION is not set
+CONFIG_HZ_100=y
+CONFIG_PREEMPT=y
+# CONFIG_SECCOMP is not set
+CONFIG_MIPS_CMDLINE_FROM_BOOTLOADER=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_MEMCG=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_NAMESPACES=y
+CONFIG_USER_NS=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SUSPEND is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+# CONFIG_FW_LOADER is not set
+# CONFIG_ALLOW_DEV_COREDUMP is not set
+CONFIG_NETDEVICES=y
+# CONFIG_ETHERNET is not set
+# CONFIG_WLAN is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_VT_HW_CONSOLE_BINDING=y
+CONFIG_LEGACY_PTY_COUNT=2
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=3
+CONFIG_SERIAL_8250_RUNTIME_UARTS=3
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_MMC=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_MEMORY=y
+CONFIG_PHY_RALINK_USB=y
+# CONFIG_DNOTIFY is not set
+CONFIG_PROC_KCORE=y
+# CONFIG_PROC_PAGE_MONITOR is not set
+CONFIG_TMPFS=y
+CONFIG_CONFIGFS_FS=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_UTF8=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_PANIC_TIMEOUT=10
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_PREEMPT is not set
+CONFIG_STACKTRACE=y
+# CONFIG_FTRACE is not set
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRC16=y
+CONFIG_XZ_DEC=y
diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
index cea2bb1621e6..a25ef822e725 100644
--- a/arch/mips/dec/int-handler.S
+++ b/arch/mips/dec/int-handler.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1995, 1996, 1997 Paul M. Antoine and Harald Koerfgen
  * Copyright (C) 2000, 2001, 2002, 2003, 2005  Maciej W. Rozycki
diff --git a/arch/mips/dec/prom/cmdline.c b/arch/mips/dec/prom/cmdline.c
index c3490bebbc5d..3ed63280ae29 100644
--- a/arch/mips/dec/prom/cmdline.c
+++ b/arch/mips/dec/prom/cmdline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cmdline.c: read the command line passed to us by the PROM.
  *
diff --git a/arch/mips/dec/prom/dectypes.h b/arch/mips/dec/prom/dectypes.h
index 69ea5b9c8190..9fcbcc7cdbd3 100644
--- a/arch/mips/dec/prom/dectypes.h
+++ b/arch/mips/dec/prom/dectypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECTYPES
 #define DECTYPES
 
diff --git a/arch/mips/dec/prom/identify.c b/arch/mips/dec/prom/identify.c
index 0c14a9d6a84a..80cd14cd1a63 100644
--- a/arch/mips/dec/prom/identify.c
+++ b/arch/mips/dec/prom/identify.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * identify.c: machine identification code.
  *
diff --git a/arch/mips/dec/prom/init.c b/arch/mips/dec/prom/init.c
index d88eb7a6662b..cc988bbd27fc 100644
--- a/arch/mips/dec/prom/init.c
+++ b/arch/mips/dec/prom/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * init.c: PROM library initialisation code.
  *
diff --git a/arch/mips/dec/prom/locore.S b/arch/mips/dec/prom/locore.S
index f72b5741025f..0eb8fab62ab0 100644
--- a/arch/mips/dec/prom/locore.S
+++ b/arch/mips/dec/prom/locore.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * locore.S
  */
diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c
index 8c62316f22f4..a2acc6454cf3 100644
--- a/arch/mips/dec/prom/memory.c
+++ b/arch/mips/dec/prom/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * memory.c: memory initialisation code.
  *
diff --git a/arch/mips/dec/reset.c b/arch/mips/dec/reset.c
index c15a879046e5..3df01f1da347 100644
--- a/arch/mips/dec/reset.c
+++ b/arch/mips/dec/reset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Reset a DECstation machine.
  *
diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c
index 1914e56f0d96..a2a150e4fbc2 100644
--- a/arch/mips/dec/time.c
+++ b/arch/mips/dec/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
  *  Copyright (C) 2000, 2003  Maciej W. Rozycki
diff --git a/arch/mips/fw/arc/Makefile b/arch/mips/fw/arc/Makefile
index 4f349ec1ea2d..31dd7305d643 100644
--- a/arch/mips/fw/arc/Makefile
+++ b/arch/mips/fw/arc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ARC prom monitor library routines under Linux.
 #
diff --git a/arch/mips/fw/arc/arc_con.c b/arch/mips/fw/arc/arc_con.c
index bc32fe64f42a..769d4b9ac82e 100644
--- a/arch/mips/fw/arc/arc_con.c
+++ b/arch/mips/fw/arc/arc_con.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wrap-around code for a console using the
  * ARC io-routines.
diff --git a/arch/mips/fw/arc/init.c b/arch/mips/fw/arc/init.c
index 629b24db0d3a..008555969534 100644
--- a/arch/mips/fw/arc/init.c
+++ b/arch/mips/fw/arc/init.c
@@ -51,7 +51,7 @@ void __init prom_init(void)
 #endif
 #ifdef CONFIG_SGI_IP27
 	{
-		extern struct plat_smp_ops ip27_smp_ops;
+		extern const struct plat_smp_ops ip27_smp_ops;
 
 		register_smp_ops(&ip27_smp_ops);
 	}
diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c
index 0d75b5a0bad4..dd9496f26e6a 100644
--- a/arch/mips/fw/arc/memory.c
+++ b/arch/mips/fw/arc/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * memory.c: PROM library functions for acquiring/using memory descriptors
  *	     given to us from the ARCS firmware.
diff --git a/arch/mips/fw/arc/salone.c b/arch/mips/fw/arc/salone.c
index 9b568950d1fd..2d99f44d5576 100644
--- a/arch/mips/fw/arc/salone.c
+++ b/arch/mips/fw/arc/salone.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Routines to load into memory and execute stand-along program images using
  * ARCS PROM firmware.
diff --git a/arch/mips/generic/Kconfig b/arch/mips/generic/Kconfig
index 51ffbbaddee2..0b67c46666cc 100644
--- a/arch/mips/generic/Kconfig
+++ b/arch/mips/generic/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MIPS_GENERIC
 
 config LEGACY_BOARDS
@@ -36,4 +37,10 @@ config FIT_IMAGE_FDT_BOSTON
 	  enable this if you wish to boot on a MIPS Boston board, as it is
 	  expected by the bootloader.
 
+config FIT_IMAGE_FDT_NI169445
+	bool "Include FDT for NI 169445"
+	help
+	  Enable this to include the FDT for the 169445 platform from
+	  National Instruments in the FIT kernel image.
+
 endif
diff --git a/arch/mips/generic/Makefile b/arch/mips/generic/Makefile
index 56b3ea565ed9..874967363dbb 100644
--- a/arch/mips/generic/Makefile
+++ b/arch/mips/generic/Makefile
@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2016 Imagination Technologies
-# Author: Paul Burton <paul.burton@imgtec.com>
+# Author: Paul Burton <paul.burton@mips.com>
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/generic/Platform b/arch/mips/generic/Platform
index 9a30d69e2281..b51432dd10b6 100644
--- a/arch/mips/generic/Platform
+++ b/arch/mips/generic/Platform
@@ -1,6 +1,6 @@
 #
 # Copyright (C) 2016 Imagination Technologies
-# Author: Paul Burton <paul.burton@imgtec.com>
+# Author: Paul Burton <paul.burton@mips.com>
 #
 # This program is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License as published by the
@@ -12,3 +12,7 @@ platform-$(CONFIG_MIPS_GENERIC)	+= generic/
 cflags-$(CONFIG_MIPS_GENERIC)	+= -I$(srctree)/arch/mips/include/asm/mach-generic
 load-$(CONFIG_MIPS_GENERIC)	+= 0xffffffff80100000
 all-$(CONFIG_MIPS_GENERIC)	:= vmlinux.gz.itb
+
+its-y					:= vmlinux.its.S
+its-$(CONFIG_FIT_IMAGE_FDT_BOSTON)	+= board-boston.its.S
+its-$(CONFIG_FIT_IMAGE_FDT_NI169445)	+= board-ni169445.its.S
diff --git a/arch/mips/generic/board-boston.its.S b/arch/mips/generic/board-boston.its.S
new file mode 100644
index 000000000000..a7f51f97b910
--- /dev/null
+++ b/arch/mips/generic/board-boston.its.S
@@ -0,0 +1,22 @@
+/ {
+	images {
+		fdt@boston {
+			description = "img,boston Device Tree";
+			data = /incbin/("boot/dts/img/boston.dtb");
+			type = "flat_dt";
+			arch = "mips";
+			compression = "none";
+			hash@0 {
+				algo = "sha1";
+			};
+		};
+	};
+
+	configurations {
+		conf@boston {
+			description = "Boston Linux kernel";
+			kernel = "kernel@0";
+			fdt = "fdt@boston";
+		};
+	};
+};
diff --git a/arch/mips/generic/board-ni169445.its.S b/arch/mips/generic/board-ni169445.its.S
new file mode 100644
index 000000000000..e4cb4f95a8cc
--- /dev/null
+++ b/arch/mips/generic/board-ni169445.its.S
@@ -0,0 +1,22 @@
+/ {
+	images {
+		fdt@ni169445 {
+			description = "NI 169445 device tree";
+			data = /incbin/("boot/dts/ni/169445.dtb");
+			type = "flat_dt";
+			arch = "mips";
+			compression = "none";
+			hash@0 {
+				algo = "sha1";
+			};
+		};
+	};
+
+	configurations {
+		conf@ni169445 {
+			description = "NI 169445 Linux Kernel";
+			kernel = "kernel@0";
+			fdt = "fdt@ni169445";
+		};
+	};
+};
diff --git a/arch/mips/generic/board-sead3.c b/arch/mips/generic/board-sead3.c
index f109a6b9fdd0..10cf93d97346 100644
--- a/arch/mips/generic/board-sead3.c
+++ b/arch/mips/generic/board-sead3.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c
index 3f32b376d30e..5ba6fcc26fa7 100644
--- a/arch/mips/generic/init.c
+++ b/arch/mips/generic/init.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -16,10 +16,11 @@
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
+#include <asm/bootinfo.h>
 #include <asm/fw/fw.h>
 #include <asm/irq_cpu.h>
 #include <asm/machine.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/prom.h>
 #include <asm/smp-ops.h>
 #include <asm/time.h>
@@ -88,6 +89,8 @@ void __init *plat_get_fdt(void)
 	return (void *)fdt;
 }
 
+#ifdef CONFIG_RELOCATABLE
+
 void __init plat_fdt_relocated(void *new_location)
 {
 	/*
@@ -101,6 +104,8 @@ void __init plat_fdt_relocated(void *new_location)
 		fw_arg1 = (unsigned long)new_location;
 }
 
+#endif /* CONFIG_RELOCATABLE */
+
 void __init plat_mem_setup(void)
 {
 	if (mach && mach->fixup_fdt)
diff --git a/arch/mips/generic/irq.c b/arch/mips/generic/irq.c
index 14064bdd91dd..394f8161e462 100644
--- a/arch/mips/generic/irq.c
+++ b/arch/mips/generic/irq.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -12,10 +12,11 @@
 #include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/init.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/types.h>
 
 #include <asm/irq.h>
+#include <asm/mips-cps.h>
+#include <asm/time.h>
 
 int get_c0_fdc_int(void)
 {
@@ -23,7 +24,7 @@ int get_c0_fdc_int(void)
 
 	if (cpu_has_veic)
 		panic("Unimplemented!");
-	else if (gic_present)
+	else if (mips_gic_present())
 		mips_cpu_fdc_irq = gic_get_c0_fdc_int();
 	else if (cp0_fdc_irq >= 0)
 		mips_cpu_fdc_irq = MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
@@ -39,7 +40,7 @@ int get_c0_perfcount_int(void)
 
 	if (cpu_has_veic)
 		panic("Unimplemented!");
-	else if (gic_present)
+	else if (mips_gic_present())
 		mips_cpu_perf_irq = gic_get_c0_perfcount_int();
 	else if (cp0_perfcount_irq >= 0)
 		mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
@@ -55,7 +56,7 @@ unsigned int get_c0_compare_int(void)
 
 	if (cpu_has_veic)
 		panic("Unimplemented!");
-	else if (gic_present)
+	else if (mips_gic_present())
 		mips_cpu_timer_irq = gic_get_c0_compare_int();
 	else
 		mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
diff --git a/arch/mips/generic/kexec.c b/arch/mips/generic/kexec.c
index e9fb735299e3..1ca409f58929 100644
--- a/arch/mips/generic/kexec.c
+++ b/arch/mips/generic/kexec.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
+ * Author: Marcin Nowakowski <marcin.nowakowski@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/generic/proc.c b/arch/mips/generic/proc.c
index 42b33250a4a2..199fb2cc57ee 100644
--- a/arch/mips/generic/proc.c
+++ b/arch/mips/generic/proc.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/generic/vmlinux.its.S b/arch/mips/generic/vmlinux.its.S
index 3390e2f80b80..1a08438fd893 100644
--- a/arch/mips/generic/vmlinux.its.S
+++ b/arch/mips/generic/vmlinux.its.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /dts-v1/;
 
 / {
@@ -29,28 +30,3 @@
 		};
 	};
 };
-
-#ifdef CONFIG_FIT_IMAGE_FDT_BOSTON
-/ {
-	images {
-		fdt@boston {
-			description = "img,boston Device Tree";
-			data = /incbin/("boot/dts/img/boston.dtb");
-			type = "flat_dt";
-			arch = "mips";
-			compression = "none";
-			hash@0 {
-				algo = "sha1";
-			};
-		};
-	};
-
-	configurations {
-		conf@boston {
-			description = "Boston Linux kernel";
-			kernel = "kernel@0";
-			fdt = "fdt@boston";
-		};
-	};
-};
-#endif /* CONFIG_FIT_IMAGE_FDT_BOSTON */
diff --git a/arch/mips/generic/yamon-dt.c b/arch/mips/generic/yamon-dt.c
index 6077bca9b364..b408dac722ac 100644
--- a/arch/mips/generic/yamon-dt.c
+++ b/arch/mips/generic/yamon-dt.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/asm-prototypes.h b/arch/mips/include/asm/asm-prototypes.h
index 6e28971fe73a..d60b57f34e92 100644
--- a/arch/mips/include/asm/asm-prototypes.h
+++ b/arch/mips/include/asm/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/checksum.h>
 #include <asm/page.h>
 #include <asm/fpu.h>
diff --git a/arch/mips/include/asm/asm.h b/arch/mips/include/asm/asm.h
index 859cf7048347..81fae23ce7cd 100644
--- a/arch/mips/include/asm/asm.h
+++ b/arch/mips/include/asm/asm.h
@@ -55,6 +55,7 @@
 		.type	symbol, @function;		\
 		.ent	symbol, 0;			\
 symbol:		.frame	sp, 0, ra;			\
+		.cfi_startproc;				\
 		.insn
 
 /*
@@ -66,12 +67,14 @@ symbol:		.frame	sp, 0, ra;			\
 		.type	symbol, @function;		\
 		.ent	symbol, 0;			\
 symbol:		.frame	sp, framesize, rpc;		\
+		.cfi_startproc;				\
 		.insn
 
 /*
  * END - mark end of function
  */
 #define END(function)					\
+		.cfi_endproc;				\
 		.end	function;			\
 		.size	function, .-function
 
diff --git a/arch/mips/include/asm/asmmacro-32.h b/arch/mips/include/asm/asmmacro-32.h
index 0ef39ad0f2d4..1c08c1f7903c 100644
--- a/arch/mips/include/asm/asmmacro-32.h
+++ b/arch/mips/include/asm/asmmacro-32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * asmmacro.h: Assembler macros to make things easier to read.
  *
diff --git a/arch/mips/include/asm/asmmacro-64.h b/arch/mips/include/asm/asmmacro-64.h
index 38ea609465b1..68039dee5ba6 100644
--- a/arch/mips/include/asm/asmmacro-64.h
+++ b/arch/mips/include/asm/asmmacro-64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * asmmacro.h: Assembler macros to make things easier to read.
  *
diff --git a/arch/mips/include/asm/bitrev.h b/arch/mips/include/asm/bitrev.h
index bc739a404ae3..8a2538e08a4e 100644
--- a/arch/mips/include/asm/bitrev.h
+++ b/arch/mips/include/asm/bitrev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MIPS_ASM_BITREV_H__
 #define __MIPS_ASM_BITREV_H__
 
diff --git a/arch/mips/include/asm/bmips-spaces.h b/arch/mips/include/asm/bmips-spaces.h
index eb96541ae67e..febc4c30a308 100644
--- a/arch/mips/include/asm/bmips-spaces.h
+++ b/arch/mips/include/asm/bmips-spaces.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_BMIPS_SPACES_H
 #define __ASM_BMIPS_SPACES_H
 
diff --git a/arch/mips/include/asm/bmips.h b/arch/mips/include/asm/bmips.h
index a92aee7b977a..b3e2975f83d3 100644
--- a/arch/mips/include/asm/bmips.h
+++ b/arch/mips/include/asm/bmips.h
@@ -48,8 +48,8 @@
 #include <asm/r4kcache.h>
 #include <asm/smp-ops.h>
 
-extern struct plat_smp_ops bmips43xx_smp_ops;
-extern struct plat_smp_ops bmips5000_smp_ops;
+extern const struct plat_smp_ops bmips43xx_smp_ops;
+extern const struct plat_smp_ops bmips5000_smp_ops;
 
 static inline int register_bmips_smp_ops(void)
 {
diff --git a/arch/mips/include/asm/bug.h b/arch/mips/include/asm/bug.h
index 540c98a810d1..745dc160a069 100644
--- a/arch/mips/include/asm/bug.h
+++ b/arch/mips/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_BUG_H
 #define __ASM_BUG_H
 
diff --git a/arch/mips/include/asm/bugs.h b/arch/mips/include/asm/bugs.h
index b160a706795d..d8ab8b7129b5 100644
--- a/arch/mips/include/asm/bugs.h
+++ b/arch/mips/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is included by init/main.c to check for architecture-dependent bugs.
  *
diff --git a/arch/mips/include/asm/clock.h b/arch/mips/include/asm/clock.h
index 4809c29a4890..5a8f96ebe5fa 100644
--- a/arch/mips/include/asm/clock.h
+++ b/arch/mips/include/asm/clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MIPS_CLOCK_H
 #define __ASM_MIPS_CLOCK_H
 
diff --git a/arch/mips/include/asm/cmp.h b/arch/mips/include/asm/cmp.h
index 033d97303c85..e9e87504bb0c 100644
--- a/arch/mips/include/asm/cmp.h
+++ b/arch/mips/include/asm/cmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CMP_H
 #define _ASM_CMP_H
 
diff --git a/arch/mips/include/asm/cmpxchg.h b/arch/mips/include/asm/cmpxchg.h
index 903f3bf48419..7e25c5cc353a 100644
--- a/arch/mips/include/asm/cmpxchg.h
+++ b/arch/mips/include/asm/cmpxchg.h
@@ -155,14 +155,16 @@ static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
 		return __cmpxchg_small(ptr, old, new, size);
 
 	case 4:
-		return __cmpxchg_asm("ll", "sc", (volatile u32 *)ptr, old, new);
+		return __cmpxchg_asm("ll", "sc", (volatile u32 *)ptr,
+				     (u32)old, new);
 
 	case 8:
 		/* lld/scd are only available for MIPS64 */
 		if (!IS_ENABLED(CONFIG_64BIT))
 			return __cmpxchg_called_with_bad_pointer();
 
-		return __cmpxchg_asm("lld", "scd", (volatile u64 *)ptr, old, new);
+		return __cmpxchg_asm("lld", "scd", (volatile u64 *)ptr,
+				     (u64)old, new);
 
 	default:
 		return __cmpxchg_called_with_bad_pointer();
diff --git a/arch/mips/include/asm/compat-signal.h b/arch/mips/include/asm/compat-signal.h
index 4c6176467146..e87cd243b0f4 100644
--- a/arch/mips/include/asm/compat-signal.h
+++ b/arch/mips/include/asm/compat-signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_COMPAT_SIGNAL_H
 #define __ASM_COMPAT_SIGNAL_H
 
diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h
index a9580097cba8..8e2b5b556488 100644
--- a/arch/mips/include/asm/compat.h
+++ b/arch/mips/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_COMPAT_H
 #define _ASM_COMPAT_H
 /*
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index cd6efb07c980..a41059d47d31 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -15,6 +15,8 @@
 #include <linux/cache.h>
 #include <linux/types.h>
 
+#include <asm/mipsregs.h>
+
 /*
  * Descriptor for a cache
  */
@@ -77,17 +79,10 @@ struct cpuinfo_mips {
 	struct cache_desc	tcache; /* Tertiary/split secondary cache */
 	int			srsets; /* Shadow register sets */
 	int			package;/* physical package number */
-	int			core;	/* physical core number */
+	unsigned int		globalnumber;
 #ifdef CONFIG_64BIT
 	int			vmbits; /* Virtual memory size in bits */
 #endif
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
-	/*
-	 * There is not necessarily a 1:1 mapping of VPE num to CPU number
-	 * in particular on multi-core systems.
-	 */
-	int			vpe_id;	 /* Virtual Processor number */
-#endif
 	void			*data;	/* Additional data */
 	unsigned int		watch_reg_count;   /* Number that exist */
 	unsigned int		watch_reg_use_cnt; /* Usable by ptrace */
@@ -144,11 +139,52 @@ struct proc_cpuinfo_notifier_args {
 	unsigned long n;
 };
 
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
-# define cpu_vpe_id(cpuinfo)	((cpuinfo)->vpe_id)
-#else
-# define cpu_vpe_id(cpuinfo)	({ (void)cpuinfo; 0; })
-#endif
+static inline unsigned int cpu_cluster(struct cpuinfo_mips *cpuinfo)
+{
+	/* Optimisation for systems where multiple clusters aren't used */
+	if (!IS_ENABLED(CONFIG_CPU_MIPSR6))
+		return 0;
+
+	return (cpuinfo->globalnumber & MIPS_GLOBALNUMBER_CLUSTER) >>
+		MIPS_GLOBALNUMBER_CLUSTER_SHF;
+}
+
+static inline unsigned int cpu_core(struct cpuinfo_mips *cpuinfo)
+{
+	return (cpuinfo->globalnumber & MIPS_GLOBALNUMBER_CORE) >>
+		MIPS_GLOBALNUMBER_CORE_SHF;
+}
+
+static inline unsigned int cpu_vpe_id(struct cpuinfo_mips *cpuinfo)
+{
+	/* Optimisation for systems where VP(E)s aren't used */
+	if (!IS_ENABLED(CONFIG_MIPS_MT_SMP) && !IS_ENABLED(CONFIG_CPU_MIPSR6))
+		return 0;
+
+	return (cpuinfo->globalnumber & MIPS_GLOBALNUMBER_VP) >>
+		MIPS_GLOBALNUMBER_VP_SHF;
+}
+
+extern void cpu_set_cluster(struct cpuinfo_mips *cpuinfo, unsigned int cluster);
+extern void cpu_set_core(struct cpuinfo_mips *cpuinfo, unsigned int core);
+extern void cpu_set_vpe_id(struct cpuinfo_mips *cpuinfo, unsigned int vpe);
+
+static inline bool cpus_are_siblings(int cpua, int cpub)
+{
+	struct cpuinfo_mips *infoa = &cpu_data[cpua];
+	struct cpuinfo_mips *infob = &cpu_data[cpub];
+	unsigned int gnuma, gnumb;
+
+	if (infoa->package != infob->package)
+		return false;
+
+	gnuma = infoa->globalnumber & ~MIPS_GLOBALNUMBER_VP;
+	gnumb = infob->globalnumber & ~MIPS_GLOBALNUMBER_VP;
+	if (gnuma != gnumb)
+		return false;
+
+	return true;
+}
 
 static inline unsigned long cpu_asid_inc(void)
 {
diff --git a/arch/mips/include/asm/cpu-type.h b/arch/mips/include/asm/cpu-type.h
index 175fe565f4e1..a45af3de075d 100644
--- a/arch/mips/include/asm/cpu-type.h
+++ b/arch/mips/include/asm/cpu-type.h
@@ -151,11 +151,6 @@ static inline int __pure __get_cpu_type(const int cpu_type)
 	case CPU_R5500:
 #endif
 
-#ifdef CONFIG_SYS_HAS_CPU_R6000
-	case CPU_R6000:
-	case CPU_R6000A:
-#endif
-
 #ifdef CONFIG_SYS_HAS_CPU_NEVADA
 	case CPU_NEVADA:
 #endif
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index d0c152b989f8..d39324c4adf1 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * cpu.h: Values of the PRId register used to match up
  *	  various MIPS cpu types.
@@ -286,11 +287,6 @@ enum cpu_type_enum {
 	CPU_R3081, CPU_R3081E,
 
 	/*
-	 * R6000 class processors
-	 */
-	CPU_R6000, CPU_R6000A,
-
-	/*
 	 * R4000 class processors
 	 */
 	CPU_R4000PC, CPU_R4000SC, CPU_R4000MC, CPU_R4200, CPU_R4300, CPU_R4310,
diff --git a/arch/mips/include/asm/dma-mapping.h b/arch/mips/include/asm/dma-mapping.h
index aba71385f9d1..42f8cbad6c23 100644
--- a/arch/mips/include/asm/dma-mapping.h
+++ b/arch/mips/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_DMA_MAPPING_H
 #define _ASM_DMA_MAPPING_H
 
diff --git a/arch/mips/include/asm/dma.h b/arch/mips/include/asm/dma.h
index 5b9ed1bffdbc..be726b943530 100644
--- a/arch/mips/include/asm/dma.h
+++ b/arch/mips/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
diff --git a/arch/mips/include/asm/dsemul.h b/arch/mips/include/asm/dsemul.h
index a6e067801f23..b47a97527673 100644
--- a/arch/mips/include/asm/dsemul.h
+++ b/arch/mips/include/asm/dsemul.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/edac.h b/arch/mips/include/asm/edac.h
index 980b16527374..fc467767329b 100644
--- a/arch/mips/include/asm/edac.h
+++ b/arch/mips/include/asm/edac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_EDAC_H
 #define ASM_EDAC_H
 
diff --git a/arch/mips/include/asm/extable.h b/arch/mips/include/asm/extable.h
index dce7a627a925..78d0ae156058 100644
--- a/arch/mips/include/asm/extable.h
+++ b/arch/mips/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EXTABLE_H
 #define _ASM_EXTABLE_H
 
diff --git a/arch/mips/include/asm/floppy.h b/arch/mips/include/asm/floppy.h
index d75aed36480a..021d09ae5670 100644
--- a/arch/mips/include/asm/floppy.h
+++ b/arch/mips/include/asm/floppy.h
@@ -10,11 +10,11 @@
 #ifndef _ASM_FLOPPY_H
 #define _ASM_FLOPPY_H
 
-#include <linux/dma-mapping.h>
+#include <asm/io.h>
 
 static inline void fd_cacheflush(char * addr, long size)
 {
-	dma_cache_sync(NULL, addr, size, DMA_BIDIRECTIONAL);
+	dma_cache_wback_inv((unsigned long)addr, size);
 }
 
 #define MAX_BUFFER_SECTORS 24
diff --git a/arch/mips/include/asm/fpu_emulator.h b/arch/mips/include/asm/fpu_emulator.h
index c05369e0b8d6..b36097d3cbf4 100644
--- a/arch/mips/include/asm/fpu_emulator.h
+++ b/arch/mips/include/asm/fpu_emulator.h
@@ -36,6 +36,7 @@ struct mips_fpu_emulator_stats {
 	unsigned long emulated;
 	unsigned long loads;
 	unsigned long stores;
+	unsigned long branches;
 	unsigned long cp1ops;
 	unsigned long cp1xops;
 	unsigned long errors;
@@ -45,6 +46,121 @@ struct mips_fpu_emulator_stats {
 	unsigned long ieee754_zerodiv;
 	unsigned long ieee754_invalidop;
 	unsigned long ds_emul;
+
+	unsigned long abs_s;
+	unsigned long abs_d;
+	unsigned long add_s;
+	unsigned long add_d;
+	unsigned long bc1eqz;
+	unsigned long bc1nez;
+	unsigned long ceil_w_s;
+	unsigned long ceil_w_d;
+	unsigned long ceil_l_s;
+	unsigned long ceil_l_d;
+	unsigned long class_s;
+	unsigned long class_d;
+	unsigned long cmp_af_s;
+	unsigned long cmp_af_d;
+	unsigned long cmp_eq_s;
+	unsigned long cmp_eq_d;
+	unsigned long cmp_le_s;
+	unsigned long cmp_le_d;
+	unsigned long cmp_lt_s;
+	unsigned long cmp_lt_d;
+	unsigned long cmp_ne_s;
+	unsigned long cmp_ne_d;
+	unsigned long cmp_or_s;
+	unsigned long cmp_or_d;
+	unsigned long cmp_ueq_s;
+	unsigned long cmp_ueq_d;
+	unsigned long cmp_ule_s;
+	unsigned long cmp_ule_d;
+	unsigned long cmp_ult_s;
+	unsigned long cmp_ult_d;
+	unsigned long cmp_un_s;
+	unsigned long cmp_un_d;
+	unsigned long cmp_une_s;
+	unsigned long cmp_une_d;
+	unsigned long cmp_saf_s;
+	unsigned long cmp_saf_d;
+	unsigned long cmp_seq_s;
+	unsigned long cmp_seq_d;
+	unsigned long cmp_sle_s;
+	unsigned long cmp_sle_d;
+	unsigned long cmp_slt_s;
+	unsigned long cmp_slt_d;
+	unsigned long cmp_sne_s;
+	unsigned long cmp_sne_d;
+	unsigned long cmp_sor_s;
+	unsigned long cmp_sor_d;
+	unsigned long cmp_sueq_s;
+	unsigned long cmp_sueq_d;
+	unsigned long cmp_sule_s;
+	unsigned long cmp_sule_d;
+	unsigned long cmp_sult_s;
+	unsigned long cmp_sult_d;
+	unsigned long cmp_sun_s;
+	unsigned long cmp_sun_d;
+	unsigned long cmp_sune_s;
+	unsigned long cmp_sune_d;
+	unsigned long cvt_d_l;
+	unsigned long cvt_d_s;
+	unsigned long cvt_d_w;
+	unsigned long cvt_l_s;
+	unsigned long cvt_l_d;
+	unsigned long cvt_s_d;
+	unsigned long cvt_s_l;
+	unsigned long cvt_s_w;
+	unsigned long cvt_w_s;
+	unsigned long cvt_w_d;
+	unsigned long div_s;
+	unsigned long div_d;
+	unsigned long floor_w_s;
+	unsigned long floor_w_d;
+	unsigned long floor_l_s;
+	unsigned long floor_l_d;
+	unsigned long maddf_s;
+	unsigned long maddf_d;
+	unsigned long max_s;
+	unsigned long max_d;
+	unsigned long maxa_s;
+	unsigned long maxa_d;
+	unsigned long min_s;
+	unsigned long min_d;
+	unsigned long mina_s;
+	unsigned long mina_d;
+	unsigned long mov_s;
+	unsigned long mov_d;
+	unsigned long msubf_s;
+	unsigned long msubf_d;
+	unsigned long mul_s;
+	unsigned long mul_d;
+	unsigned long neg_s;
+	unsigned long neg_d;
+	unsigned long recip_s;
+	unsigned long recip_d;
+	unsigned long rint_s;
+	unsigned long rint_d;
+	unsigned long round_w_s;
+	unsigned long round_w_d;
+	unsigned long round_l_s;
+	unsigned long round_l_d;
+	unsigned long rsqrt_s;
+	unsigned long rsqrt_d;
+	unsigned long sel_s;
+	unsigned long sel_d;
+	unsigned long seleqz_s;
+	unsigned long seleqz_d;
+	unsigned long selnez_s;
+	unsigned long selnez_d;
+	unsigned long sqrt_s;
+	unsigned long sqrt_d;
+	unsigned long sub_s;
+	unsigned long sub_d;
+	unsigned long trunc_w_s;
+	unsigned long trunc_w_d;
+	unsigned long trunc_l_s;
+	unsigned long trunc_l_d;
 };
 
 DECLARE_PER_CPU(struct mips_fpu_emulator_stats, fpuemustats);
@@ -62,7 +178,7 @@ do {									\
 
 extern int fpu_emulator_cop1Handler(struct pt_regs *xcp,
 				    struct mips_fpu_struct *ctx, int has_fpu,
-				    void *__user *fault_addr);
+				    void __user **fault_addr);
 void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
 		     struct task_struct *tsk);
 int process_fpemu_return(int sig, void __user *fault_addr,
diff --git a/arch/mips/include/asm/fw/arc/hinv.h b/arch/mips/include/asm/fw/arc/hinv.h
index 9fac64a26353..d67b6a90f9b3 100644
--- a/arch/mips/include/asm/fw/arc/hinv.h
+++ b/arch/mips/include/asm/fw/arc/hinv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ARCS hardware/memory inventory/configuration and system ID definitions.
  */
diff --git a/arch/mips/include/asm/gio_device.h b/arch/mips/include/asm/gio_device.h
index 71a986e9b694..c52948f9ca95 100644
--- a/arch/mips/include/asm/gio_device.h
+++ b/arch/mips/include/asm/gio_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/device.h>
 #include <linux/mod_devicetable.h>
 
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 279b6d14ffeb..9d84aafc33d0 100644
--- a/arch/mips/include/asm/highmem.h
+++ b/arch/mips/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * highmem.h: virtual kernel memory mappings for high memory
  *
diff --git a/arch/mips/include/asm/hpet.h b/arch/mips/include/asm/hpet.h
index 18a8f778bfaa..d47268eceabc 100644
--- a/arch/mips/include/asm/hpet.h
+++ b/arch/mips/include/asm/hpet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HPET_H
 #define _ASM_HPET_H
 
diff --git a/arch/mips/include/asm/idle.h b/arch/mips/include/asm/idle.h
index a2d18ab57ac6..655a6dbc861a 100644
--- a/arch/mips/include/asm/idle.h
+++ b/arch/mips/include/asm/idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IDLE_H
 #define __ASM_IDLE_H
 
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index ecabc00c1e66..0cbf3af37eca 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -632,4 +632,6 @@ extern void (*_dma_cache_inv)(unsigned long start, unsigned long size);
  */
 #define xlate_dev_kmem_ptr(p)	p
 
+void __ioread64_copy(void *to, const void __iomem *from, size_t count);
+
 #endif /* _ASM_IO_H */
diff --git a/arch/mips/include/asm/isadep.h b/arch/mips/include/asm/isadep.h
index b4af6eb24ab9..d1683202399b 100644
--- a/arch/mips/include/asm/isadep.h
+++ b/arch/mips/include/asm/isadep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Various ISA level dependent constants.
  * Most of the following constants reflect the different layout
diff --git a/arch/mips/include/asm/jazzdma.h b/arch/mips/include/asm/jazzdma.h
index 2cefc3c47241..d913439c738c 100644
--- a/arch/mips/include/asm/jazzdma.h
+++ b/arch/mips/include/asm/jazzdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Helpfile for jazzdma.c -- Mips Jazz R4030 DMA controller support
  */
diff --git a/arch/mips/include/asm/kdebug.h b/arch/mips/include/asm/kdebug.h
index 8e3d08e739c1..a55a207cfaa3 100644
--- a/arch/mips/include/asm/kdebug.h
+++ b/arch/mips/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MIPS_KDEBUG_H
 #define _ASM_MIPS_KDEBUG_H
 
diff --git a/arch/mips/include/asm/kgdb.h b/arch/mips/include/asm/kgdb.h
index 69dc0df94a96..4f2302267deb 100644
--- a/arch/mips/include/asm/kgdb.h
+++ b/arch/mips/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_KGDB_H_
 #define __ASM_KGDB_H_
 
diff --git a/arch/mips/include/asm/kmap_types.h b/arch/mips/include/asm/kmap_types.h
index c1909dcada39..16665dc2431b 100644
--- a/arch/mips/include/asm/kmap_types.h
+++ b/arch/mips/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
diff --git a/arch/mips/include/asm/kvm_para.h b/arch/mips/include/asm/kvm_para.h
index 5a9aa918abe6..60b1aa0b7014 100644
--- a/arch/mips/include/asm/kvm_para.h
+++ b/arch/mips/include/asm/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MIPS_KVM_PARA_H
 #define _ASM_MIPS_KVM_PARA_H
 
diff --git a/arch/mips/include/asm/lasat/ds1603.h b/arch/mips/include/asm/lasat/ds1603.h
index edcd7544b358..ab833be9637d 100644
--- a/arch/mips/include/asm/lasat/ds1603.h
+++ b/arch/mips/include/asm/lasat/ds1603.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/addrspace.h>
 
 /* Lasat 100	*/
diff --git a/arch/mips/include/asm/lasat/eeprom.h b/arch/mips/include/asm/lasat/eeprom.h
index d918b822e376..24001a5cbb11 100644
--- a/arch/mips/include/asm/lasat/eeprom.h
+++ b/arch/mips/include/asm/lasat/eeprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/addrspace.h>
 
 /* lasat 100 */
diff --git a/arch/mips/include/asm/lasat/head.h b/arch/mips/include/asm/lasat/head.h
index f5589f31a197..20b0ecedd4b5 100644
--- a/arch/mips/include/asm/lasat/head.h
+++ b/arch/mips/include/asm/lasat/head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Image header stuff
  */
diff --git a/arch/mips/include/asm/lasat/lasatint.h b/arch/mips/include/asm/lasat/lasatint.h
index e0d2458b43d0..b2b346e0ca38 100644
--- a/arch/mips/include/asm/lasat/lasatint.h
+++ b/arch/mips/include/asm/lasat/lasatint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LASAT_LASATINT_H
 #define __ASM_LASAT_LASATINT_H
 
diff --git a/arch/mips/include/asm/lasat/picvue.h b/arch/mips/include/asm/lasat/picvue.h
index 42a492edc40e..99987c5a4b83 100644
--- a/arch/mips/include/asm/lasat/picvue.h
+++ b/arch/mips/include/asm/lasat/picvue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Lasat 100 */
 #define PVC_REG_100		KSEG1ADDR(0x1c820000)
 #define PVC_DATA_SHIFT_100	0
diff --git a/arch/mips/include/asm/lasat/serial.h b/arch/mips/include/asm/lasat/serial.h
index a2f6c7a9cfe8..7b43d74089d1 100644
--- a/arch/mips/include/asm/lasat/serial.h
+++ b/arch/mips/include/asm/lasat/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/lasat/lasat.h>
 
 /* Lasat 100 boards serial configuration */
diff --git a/arch/mips/include/asm/linkage.h b/arch/mips/include/asm/linkage.h
index 99651b0ea7c7..1829c2b6da6c 100644
--- a/arch/mips/include/asm/linkage.h
+++ b/arch/mips/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/mips/include/asm/local.h b/arch/mips/include/asm/local.h
index 8feaed62a2ab..ac8264eca1e9 100644
--- a/arch/mips/include/asm/local.h
+++ b/arch/mips/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_MIPS_LOCAL_H
 #define _ARCH_MIPS_LOCAL_H
 
diff --git a/arch/mips/include/asm/m48t37.h b/arch/mips/include/asm/m48t37.h
index e6eaf5339e4e..3687a02e692b 100644
--- a/arch/mips/include/asm/m48t37.h
+++ b/arch/mips/include/asm/m48t37.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Registers for the SGS-Thomson M48T37 Timekeeper RAM chip
  */
diff --git a/arch/mips/include/asm/maar.h b/arch/mips/include/asm/maar.h
index e10f78befbd9..1e0da80bba13 100644
--- a/arch/mips/include/asm/maar.h
+++ b/arch/mips/include/asm/maar.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/mach-ath25/ath25_platform.h b/arch/mips/include/asm/mach-ath25/ath25_platform.h
index 4f4ee4f9e5ec..0aacc55aa51d 100644
--- a/arch/mips/include/asm/mach-ath25/ath25_platform.h
+++ b/arch/mips/include/asm/mach-ath25/ath25_platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_ATH25_PLATFORM_H
 #define __ASM_MACH_ATH25_PLATFORM_H
 
diff --git a/arch/mips/include/asm/mach-au1x00/au1200fb.h b/arch/mips/include/asm/mach-au1x00/au1200fb.h
index b3c87cc64bb9..e0e98f06c642 100644
--- a/arch/mips/include/asm/mach-au1x00/au1200fb.h
+++ b/arch/mips/include/asm/mach-au1x00/au1200fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * platform data for au1200fb driver.
  */
diff --git a/arch/mips/include/asm/mach-au1x00/au1550_spi.h b/arch/mips/include/asm/mach-au1x00/au1550_spi.h
index 08e1958e9410..fe6ca4606d77 100644
--- a/arch/mips/include/asm/mach-au1x00/au1550_spi.h
+++ b/arch/mips/include/asm/mach-au1x00/au1550_spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * au1550_spi.h - Au1550 PSC SPI controller driver - platform data structure
  */
diff --git a/arch/mips/include/asm/mach-au1x00/au1550nd.h b/arch/mips/include/asm/mach-au1x00/au1550nd.h
index ad4c0a03afef..d26dc1dadf44 100644
--- a/arch/mips/include/asm/mach-au1x00/au1550nd.h
+++ b/arch/mips/include/asm/mach-au1x00/au1550nd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * platform data for the Au1550 NAND driver
  */
diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h b/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h
index 49dc8d9db186..9d1c8d5ed4a8 100644
--- a/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h
+++ b/arch/mips/include/asm/mach-au1x00/au1xxx_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AU1X00_ETH_DATA_H
 #define __AU1X00_ETH_DATA_H
 
diff --git a/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h b/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
index bace5b9ae4df..f439cf9cf9d1 100644
--- a/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-au1x00/cpu-feature-overrides.h
@@ -8,12 +8,16 @@
 #define __ASM_MACH_AU1X00_CPU_FEATURE_OVERRIDES_H
 
 #define cpu_has_tlb			1
+#define cpu_has_ftlb			0
 #define cpu_has_tlbinv			0
 #define cpu_has_segments		0
 #define cpu_has_eva			0
 #define cpu_has_htw			0
+#define cpu_has_ldpte			0
 #define cpu_has_rixiex			0
 #define cpu_has_maar			0
+#define cpu_has_rw_llb			0
+#define cpu_has_3kex			0
 #define cpu_has_4kex			1
 #define cpu_has_3k_cache		0
 #define cpu_has_4k_cache		1
@@ -30,6 +34,12 @@
 #define cpu_has_mcheck			1
 #define cpu_has_ejtag			1
 #define cpu_has_llsc			1
+#define cpu_has_guestctl0ext		0
+#define cpu_has_guestctl1		0
+#define cpu_has_guestctl2		0
+#define cpu_has_guestid			0
+#define cpu_has_drg			0
+#define cpu_has_bp_ghist		0
 #define cpu_has_mips16			0
 #define cpu_has_mips16e2		0
 #define cpu_has_mdmx			0
@@ -37,17 +47,23 @@
 #define cpu_has_smartmips		0
 #define cpu_has_rixi			0
 #define cpu_has_mmips			0
+#define cpu_has_lpa			0
+#define cpu_has_mhv			0
 #define cpu_has_vtag_icache		0
 #define cpu_has_dc_aliases		0
 #define cpu_has_ic_fills_f_dc		1
 #define cpu_has_pindexed_dcache		0
 #define cpu_has_mips32r1		1
 #define cpu_has_mips32r2		0
+#define cpu_has_mips32r6		0
 #define cpu_has_mips64r1		0
 #define cpu_has_mips64r2		0
+#define cpu_has_mips64r6		0
 #define cpu_has_dsp			0
 #define cpu_has_dsp2			0
+#define cpu_has_dsp3			0
 #define cpu_has_mipsmt			0
+#define cpu_has_vp			0
 #define cpu_has_userlocal		0
 #define cpu_has_nofpuex			0
 #define cpu_has_64bits			0
@@ -58,9 +74,19 @@
 
 #define cpu_dcache_line_size()		32
 #define cpu_icache_line_size()		32
+#define cpu_scache_line_size()		0
 
 #define cpu_has_perf_cntr_intr_bit	0
 #define cpu_has_vz			0
 #define cpu_has_msa			0
+#define cpu_has_fre			0
+#define cpu_has_cdmm			0
+#define cpu_has_small_pages		0
+#define cpu_has_nan_legacy		1
+#define cpu_has_nan_2008		1
+#define cpu_has_ebase_wg		0
+#define cpu_has_badinstr		0
+#define cpu_has_badinstrp		0
+#define cpu_has_contextconfig		0
 
 #endif /* __ASM_MACH_AU1X00_CPU_FEATURE_OVERRIDES_H */
diff --git a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h
index d607d643b973..d25846a1291f 100644
--- a/arch/mips/include/asm/mach-au1x00/gpio-au1300.h
+++ b/arch/mips/include/asm/mach-au1x00/gpio-au1300.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * gpio-au1300.h -- GPIO control for Au1300 GPIC and compatibles.
  *
diff --git a/arch/mips/include/asm/mach-au1x00/prom.h b/arch/mips/include/asm/mach-au1x00/prom.h
index 4c0e09cf1735..c62ee0246d76 100644
--- a/arch/mips/include/asm/mach-au1x00/prom.h
+++ b/arch/mips/include/asm/mach-au1x00/prom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AU1X00_PROM_H
 #define __AU1X00_PROM_H
 
diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
index ee3d4fe515a0..cbf9da7f2f94 100644
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM47XX_BOARD_H
 #define __BCM47XX_BOARD_H
 
diff --git a/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
index b7992cd4aaf9..b23ff47ea475 100644
--- a/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-bcm47xx/cpu-feature-overrides.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_BCM47XX_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_BCM47XX_CPU_FEATURE_OVERRIDES_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_board.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_board.h
index fa3e7e617b09..1d19a726f86c 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_board.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_board.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_BOARD_H_
 #define BCM63XX_BOARD_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
index 56bb19219d48..1cad18e6681d 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_CPU_H_
 #define BCM63XX_CPU_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cs.h
index b1821c866e53..1c634d7c1597 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_CS_H
 #define BCM63XX_CS_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_dsp.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_dsp.h
index b587d45c3045..4e4970787371 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_dsp.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_dsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM63XX_DSP_H
 #define __BCM63XX_DSP_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
index c4e856f27040..c0bd47444cff 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_enet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_ENET_H_
 #define BCM63XX_DEV_ENET_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
index 354b8481ec4a..4d5005f2b8b5 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM63XX_FLASH_H
 #define __BCM63XX_FLASH_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
index 1b1acafb3d79..f93f176c1bee 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_hsspi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_HSSPI_H
 #define BCM63XX_DEV_HSSPI_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pci.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pci.h
index c549344b70ad..1951c125cf0e 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pci.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_PCI_H_
 #define BCM63XX_DEV_PCI_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h
index 2beb3969ce3b..01674ac58bb5 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_pcmcia.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_PCMCIA_H_
 #define BCM63XX_DEV_PCMCIA_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
index dd299548860d..0ab750522324 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_SPI_H
 #define BCM63XX_DEV_SPI_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
index 23c705baf171..88f8cf1c7094 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_UART_H_
 #define BCM63XX_DEV_UART_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h
index 5d6d6986f40b..3f920baff966 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_usbd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_DEV_USB_USBD_H_
 #define BCM63XX_DEV_USB_USBD_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
index 565ff36a1119..8fe88c2251e4 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_GPIO_H
 #define BCM63XX_GPIO_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h
index 7033144aab2d..31c692433ada 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_IO_H_
 #define BCM63XX_IO_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_irq.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_irq.h
index 0c3074b871b8..7887bc6905f5 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_irq.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_IRQ_H_
 #define BCM63XX_IRQ_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
index 1e89df7244bd..73df916e414d 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_iudma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_IUDMA_H_
 #define BCM63XX_IUDMA_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
index 348df49dcc9f..f78d725f263f 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_NVRAM_H
 #define BCM63XX_NVRAM_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
index 5035f09c5427..bc3444cd4ef2 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_REGS_H_
 #define BCM63XX_REGS_H_
 
@@ -710,7 +711,7 @@
 /* Broadcom 6345 ENET DMA definitions */
 #define ENETDMA_6345_CHANCFG_REG	(0x00)
 
-#define ENETDMA_6345_MAXBURST_REG	(0x40)
+#define ENETDMA_6345_MAXBURST_REG	(0x04)
 
 #define ENETDMA_6345_RSTART_REG		(0x08)
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
index 3a6eb9c1adc6..2c0645b7da84 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM63XX_RESET_H
 #define __BCM63XX_RESET_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_timer.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_timer.h
index c0fce833c9ed..bcbece793fd8 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_timer.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_TIMER_H_
 #define BCM63XX_TIMER_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
index b86a0efba665..5e5b1bc4a324 100644
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOARD_BCM963XX_H_
 #define BOARD_BCM963XX_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
index b56cf10b91d3..0ebecbdb9749 100644
--- a/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-bcm63xx/cpu-feature-overrides.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_BCM963XX_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_BCM963XX_CPU_FEATURE_OVERRIDES_H
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/ioremap.h b/arch/mips/include/asm/mach-bcm63xx/ioremap.h
index aea6e64b828f..8cd261ec0a75 100644
--- a/arch/mips/include/asm/mach-bcm63xx/ioremap.h
+++ b/arch/mips/include/asm/mach-bcm63xx/ioremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_IOREMAP_H_
 #define BCM63XX_IOREMAP_H_
 
diff --git a/arch/mips/include/asm/mach-bcm63xx/irq.h b/arch/mips/include/asm/mach-bcm63xx/irq.h
index 2bbfc8d1f307..b016f0615d5f 100644
--- a/arch/mips/include/asm/mach-bcm63xx/irq.h
+++ b/arch/mips/include/asm/mach-bcm63xx/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_BCM63XX_IRQ_H
 #define __ASM_MACH_BCM63XX_IRQ_H
 
diff --git a/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h b/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h
index fa0583e1ce0d..68a219d80407 100644
--- a/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-bmips/cpu-feature-overrides.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_BMIPS_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_BMIPS_CPU_FEATURE_OVERRIDES_H
 
diff --git a/arch/mips/include/asm/mach-bmips/ioremap.h b/arch/mips/include/asm/mach-bmips/ioremap.h
index 29c7a7bb7080..52632ebc705f 100644
--- a/arch/mips/include/asm/mach-bmips/ioremap.h
+++ b/arch/mips/include/asm/mach-bmips/ioremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_BMIPS_IOREMAP_H
 #define __ASM_MACH_BMIPS_IOREMAP_H
 
diff --git a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
index bd8b9bbe1771..a4f798629c3d 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h
@@ -46,9 +46,9 @@
 #define cpu_has_64bits		1
 #define cpu_has_octeon_cache	1
 #define cpu_has_saa		octeon_has_saa()
-#define cpu_has_mips32r1	0
-#define cpu_has_mips32r2	0
-#define cpu_has_mips64r1	0
+#define cpu_has_mips32r1	1
+#define cpu_has_mips32r2	1
+#define cpu_has_mips64r1	1
 #define cpu_has_mips64r2	1
 #define cpu_has_dsp		0
 #define cpu_has_dsp2		0
diff --git a/arch/mips/include/asm/mach-db1x00/bcsr.h b/arch/mips/include/asm/mach-db1x00/bcsr.h
index 3c3ed4ae45e2..4a27738e8b22 100644
--- a/arch/mips/include/asm/mach-db1x00/bcsr.h
+++ b/arch/mips/include/asm/mach-db1x00/bcsr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * bcsr.h -- Db1xxx/Pb1xxx Devboard CPLD registers ("BCSR") abstraction.
  *
diff --git a/arch/mips/include/asm/mach-generic/kmalloc.h b/arch/mips/include/asm/mach-generic/kmalloc.h
index a5d669086ed9..74207c7bd00d 100644
--- a/arch/mips/include/asm/mach-generic/kmalloc.h
+++ b/arch/mips/include/asm/mach-generic/kmalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_GENERIC_KMALLOC_H
 #define __ASM_MACH_GENERIC_KMALLOC_H
 
diff --git a/arch/mips/include/asm/mach-ip27/mmzone.h b/arch/mips/include/asm/mach-ip27/mmzone.h
index ebc9377ff876..2ed3094dee07 100644
--- a/arch/mips/include/asm/mach-ip27/mmzone.h
+++ b/arch/mips/include/asm/mach-ip27/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MACH_MMZONE_H
 #define _ASM_MACH_MMZONE_H
 
diff --git a/arch/mips/include/asm/mach-ip27/topology.h b/arch/mips/include/asm/mach-ip27/topology.h
index defd135e7ac8..42ea1313626c 100644
--- a/arch/mips/include/asm/mach-ip27/topology.h
+++ b/arch/mips/include/asm/mach-ip27/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MACH_TOPOLOGY_H
 #define _ASM_MACH_TOPOLOGY_H	1
 
@@ -23,7 +24,6 @@ struct cpuinfo_ip27 {
 extern struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
 
 #define cpu_to_node(cpu)	(sn_cpu_info[(cpu)].p_nodeid)
-#define parent_node(node)	(node)
 #define cpumask_of_node(node)	((node) == -1 ?				\
 				 cpu_all_mask :				\
 				 &hub_data(node)->h_cpus)
diff --git a/arch/mips/include/asm/mach-ip32/kmalloc.h b/arch/mips/include/asm/mach-ip32/kmalloc.h
index 042ca926c48f..07a0146ea61f 100644
--- a/arch/mips/include/asm/mach-ip32/kmalloc.h
+++ b/arch/mips/include/asm/mach-ip32/kmalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_IP32_KMALLOC_H
 #define __ASM_MACH_IP32_KMALLOC_H
 
diff --git a/arch/mips/include/asm/mach-jz4740/base.h b/arch/mips/include/asm/mach-jz4740/base.h
index f37318605452..96b2d6674cdb 100644
--- a/arch/mips/include/asm/mach-jz4740/base.h
+++ b/arch/mips/include/asm/mach-jz4740/base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_JZ4740_BASE_H__
 #define __ASM_MACH_JZ4740_BASE_H__
 
diff --git a/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h b/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h
index 8543f432b4b3..e9cc62cfac99 100644
--- a/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h
+++ b/arch/mips/include/asm/mach-jz4740/jz4740_mmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MMC_JZ4740_MMC
 #define __LINUX_MMC_JZ4740_MMC
 
diff --git a/arch/mips/include/asm/mach-lantiq/lantiq.h b/arch/mips/include/asm/mach-lantiq/lantiq.h
index 8064d7a4b33d..d750f93232e4 100644
--- a/arch/mips/include/asm/mach-lantiq/lantiq.h
+++ b/arch/mips/include/asm/mach-lantiq/lantiq.h
@@ -46,8 +46,6 @@ extern struct clk *clk_get_ppe(void);
 
 /* find out what bootsource we have */
 extern unsigned char ltq_boot_select(void);
-/* find out what caused the last cpu reset */
-extern int ltq_reset_cause(void);
 /* find out the soc type */
 extern int ltq_soc_type(void);
 
diff --git a/arch/mips/include/asm/mach-lasat/irq.h b/arch/mips/include/asm/mach-lasat/irq.h
index 3a282419d5f9..d79cbe075084 100644
--- a/arch/mips/include/asm/mach-lasat/irq.h
+++ b/arch/mips/include/asm/mach-lasat/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MACH_LASAT_IRQ_H
 #define _ASM_MACH_LASAT_IRQ_H
 
diff --git a/arch/mips/include/asm/mach-lasat/mach-gt64120.h b/arch/mips/include/asm/mach-lasat/mach-gt64120.h
index c253d3fa5167..6666a8871a23 100644
--- a/arch/mips/include/asm/mach-lasat/mach-gt64120.h
+++ b/arch/mips/include/asm/mach-lasat/mach-gt64120.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  This is a direct copy of the ev96100.h file, with a global
  * search and replace.	The numbers are the same.
diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h
index 9f9bb9c53785..4f69f08717f6 100644
--- a/arch/mips/include/asm/mach-loongson64/boot_param.h
+++ b/arch/mips/include/asm/mach-loongson64/boot_param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_LOONGSON64_BOOT_PARAM_H_
 #define __ASM_MACH_LOONGSON64_BOOT_PARAM_H_
 
diff --git a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536.h b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536.h
index a0ee0cb775ad..9795b3361532 100644
--- a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536.h
+++ b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The header file of cs5536 south bridge.
  *
diff --git a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_mfgpt.h b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_mfgpt.h
index 021d0172dad6..52e8bb0fc04d 100644
--- a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_mfgpt.h
+++ b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_mfgpt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * cs5536 mfgpt header file
  */
diff --git a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h
index bf9dd9eb4ceb..a0d4b752899e 100644
--- a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h
+++ b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * the definition file of cs5536 Virtual Support Module(VSM).
  * pci configuration space can be accessed through the VSM, so
diff --git a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_vsm.h b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_vsm.h
index 1f17c1815ee5..70d0153cccc3 100644
--- a/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_vsm.h
+++ b/arch/mips/include/asm/mach-loongson64/cs5536/cs5536_vsm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * the read/write interfaces for Virtual Support Module(VSM)
  *
diff --git a/arch/mips/include/asm/mach-loongson64/irq.h b/arch/mips/include/asm/mach-loongson64/irq.h
index d18c45c7c394..3644b68c0ccc 100644
--- a/arch/mips/include/asm/mach-loongson64/irq.h
+++ b/arch/mips/include/asm/mach-loongson64/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_LOONGSON64_IRQ_H_
 #define __ASM_MACH_LOONGSON64_IRQ_H_
 
diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h
index c68c0cc879c6..d0ae5d55413b 100644
--- a/arch/mips/include/asm/mach-loongson64/loongson.h
+++ b/arch/mips/include/asm/mach-loongson64/loongson.h
@@ -26,7 +26,7 @@ extern void mach_prepare_shutdown(void);
 /* environment arguments from bootloader */
 extern u32 cpu_clock_freq;
 extern u32 memsize, highmemsize;
-extern struct plat_smp_ops loongson3_smp_ops;
+extern const struct plat_smp_ops loongson3_smp_ops;
 
 /* loongson-specific command line, env and memory initialization */
 extern void __init prom_init_memory(void);
diff --git a/arch/mips/include/asm/mach-loongson64/loongson_hwmon.h b/arch/mips/include/asm/mach-loongson64/loongson_hwmon.h
index 74230d0ca98b..545f91f2ae16 100644
--- a/arch/mips/include/asm/mach-loongson64/loongson_hwmon.h
+++ b/arch/mips/include/asm/mach-loongson64/loongson_hwmon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LOONGSON_HWMON_H_
 #define __LOONGSON_HWMON_H_
 
diff --git a/arch/mips/include/asm/mach-loongson64/spaces.h b/arch/mips/include/asm/mach-loongson64/spaces.h
index c6040b9fcf94..e85bc1d9c4f2 100644
--- a/arch/mips/include/asm/mach-loongson64/spaces.h
+++ b/arch/mips/include/asm/mach-loongson64/spaces.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_LOONGSON64_SPACES_H_
 #define __ASM_MACH_LOONGSON64_SPACES_H_
 
diff --git a/arch/mips/include/asm/mach-loongson64/topology.h b/arch/mips/include/asm/mach-loongson64/topology.h
index 0d8f3b55bdbc..7ff819ab308a 100644
--- a/arch/mips/include/asm/mach-loongson64/topology.h
+++ b/arch/mips/include/asm/mach-loongson64/topology.h
@@ -1,10 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MACH_TOPOLOGY_H
 #define _ASM_MACH_TOPOLOGY_H
 
 #ifdef CONFIG_NUMA
 
 #define cpu_to_node(cpu)	(cpu_logical_map(cpu) >> 2)
-#define parent_node(node)	(node)
 #define cpumask_of_node(node)	(&__node_data[(node)]->cpumask)
 
 struct pci_bus;
diff --git a/arch/mips/include/asm/mach-loongson64/workarounds.h b/arch/mips/include/asm/mach-loongson64/workarounds.h
index e659f041e116..17b71172a097 100644
--- a/arch/mips/include/asm/mach-loongson64/workarounds.h
+++ b/arch/mips/include/asm/mach-loongson64/workarounds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_LOONGSON64_WORKAROUNDS_H_
 #define __ASM_MACH_LOONGSON64_WORKAROUNDS_H_
 
diff --git a/arch/mips/include/asm/mach-malta/irq.h b/arch/mips/include/asm/mach-malta/irq.h
index 47cfe64efbb0..af9eeea250ed 100644
--- a/arch/mips/include/asm/mach-malta/irq.h
+++ b/arch/mips/include/asm/mach-malta/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_MIPS_IRQ_H
 #define __ASM_MACH_MIPS_IRQ_H
 
diff --git a/arch/mips/include/asm/mach-malta/mach-gt64120.h b/arch/mips/include/asm/mach-malta/mach-gt64120.h
index 62a4b2889fa7..b9dee7c3e469 100644
--- a/arch/mips/include/asm/mach-malta/mach-gt64120.h
+++ b/arch/mips/include/asm/mach-malta/mach-gt64120.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  This is a direct copy of the ev96100.h file, with a global
  * search and replace.	The numbers are the same.
diff --git a/arch/mips/include/asm/mach-malta/malta-dtshim.h b/arch/mips/include/asm/mach-malta/malta-dtshim.h
index cfd777663c64..d696a7598ea7 100644
--- a/arch/mips/include/asm/mach-malta/malta-dtshim.h
+++ b/arch/mips/include/asm/mach-malta/malta-dtshim.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/mach-malta/malta-pm.h b/arch/mips/include/asm/mach-malta/malta-pm.h
index c2c2e201013d..347b53dbc88f 100644
--- a/arch/mips/include/asm/mach-malta/malta-pm.h
+++ b/arch/mips/include/asm/mach-malta/malta-pm.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/mach-ralink/irq.h b/arch/mips/include/asm/mach-ralink/irq.h
index 4321865e04b9..86473e3999aa 100644
--- a/arch/mips/include/asm/mach-ralink/irq.h
+++ b/arch/mips/include/asm/mach-ralink/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_RALINK_IRQ_H
 #define __ASM_MACH_RALINK_IRQ_H
 
diff --git a/arch/mips/include/asm/mach-rc32434/dma.h b/arch/mips/include/asm/mach-rc32434/dma.h
index 4322191e46bf..44dc87bb8087 100644
--- a/arch/mips/include/asm/mach-rc32434/dma.h
+++ b/arch/mips/include/asm/mach-rc32434/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2002 Integrated Device Technology, Inc.
  *		All rights reserved.
diff --git a/arch/mips/include/asm/mach-rc32434/dma_v.h b/arch/mips/include/asm/mach-rc32434/dma_v.h
index 28c54063a345..37d73b9877c6 100644
--- a/arch/mips/include/asm/mach-rc32434/dma_v.h
+++ b/arch/mips/include/asm/mach-rc32434/dma_v.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2002 Integrated Device Technology, Inc.
  *		All rights reserved.
diff --git a/arch/mips/include/asm/mach-rc32434/gpio.h b/arch/mips/include/asm/mach-rc32434/gpio.h
index db211212ce79..a3192da9f227 100644
--- a/arch/mips/include/asm/mach-rc32434/gpio.h
+++ b/arch/mips/include/asm/mach-rc32434/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2002 Integrated Device Technology, Inc.
  *	All rights reserved.
diff --git a/arch/mips/include/asm/mach-rc32434/irq.h b/arch/mips/include/asm/mach-rc32434/irq.h
index b76dec95c04e..ebe32bd5a5fb 100644
--- a/arch/mips/include/asm/mach-rc32434/irq.h
+++ b/arch/mips/include/asm/mach-rc32434/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_RC32434_IRQ_H
 #define __ASM_RC32434_IRQ_H
 
diff --git a/arch/mips/include/asm/mach-rc32434/rc32434.h b/arch/mips/include/asm/mach-rc32434/rc32434.h
index 02fd32b4be16..1bec6cc8abf0 100644
--- a/arch/mips/include/asm/mach-rc32434/rc32434.h
+++ b/arch/mips/include/asm/mach-rc32434/rc32434.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for IDT RC323434 CPU.
  */
diff --git a/arch/mips/include/asm/mach-tx39xx/mangle-port.h b/arch/mips/include/asm/mach-tx39xx/mangle-port.h
index ef0b502fd8b7..ab7a70bd895e 100644
--- a/arch/mips/include/asm/mach-tx39xx/mangle-port.h
+++ b/arch/mips/include/asm/mach-tx39xx/mangle-port.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_TX39XX_MANGLE_PORT_H
 #define __ASM_MACH_TX39XX_MANGLE_PORT_H
 
diff --git a/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h b/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
index b9d39dc45420..04e4247255da 100644
--- a/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
+++ b/arch/mips/include/asm/mach-tx49xx/cpu-feature-overrides.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_TX49XX_CPU_FEATURE_OVERRIDES_H
 #define __ASM_MACH_TX49XX_CPU_FEATURE_OVERRIDES_H
 
diff --git a/arch/mips/include/asm/mach-tx49xx/kmalloc.h b/arch/mips/include/asm/mach-tx49xx/kmalloc.h
index ff9a8b86cb93..c2a0a6fa483f 100644
--- a/arch/mips/include/asm/mach-tx49xx/kmalloc.h
+++ b/arch/mips/include/asm/mach-tx49xx/kmalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_TX49XX_KMALLOC_H
 #define __ASM_MACH_TX49XX_KMALLOC_H
 
diff --git a/arch/mips/include/asm/mach-tx49xx/mangle-port.h b/arch/mips/include/asm/mach-tx49xx/mangle-port.h
index 490867b03c8f..e061ef38fb5f 100644
--- a/arch/mips/include/asm/mach-tx49xx/mangle-port.h
+++ b/arch/mips/include/asm/mach-tx49xx/mangle-port.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_TX49XX_MANGLE_PORT_H
 #define __ASM_MACH_TX49XX_MANGLE_PORT_H
 
diff --git a/arch/mips/include/asm/mach-vr41xx/irq.h b/arch/mips/include/asm/mach-vr41xx/irq.h
index 862058d3f81b..3d63afae37a8 100644
--- a/arch/mips/include/asm/mach-vr41xx/irq.h
+++ b/arch/mips/include/asm/mach-vr41xx/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_VR41XX_IRQ_H
 #define __ASM_MACH_VR41XX_IRQ_H
 
diff --git a/arch/mips/include/asm/machine.h b/arch/mips/include/asm/machine.h
index ecb6c7335484..e0d9b373d415 100644
--- a/arch/mips/include/asm/machine.h
+++ b/arch/mips/include/asm/machine.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/mips-boards/launch.h b/arch/mips/include/asm/mips-boards/launch.h
index 653477e4074d..f93aa5ee2e2e 100644
--- a/arch/mips/include/asm/mips-boards/launch.h
+++ b/arch/mips/include/asm/mips-boards/launch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  */
diff --git a/arch/mips/include/asm/mips-boards/maltaint.h b/arch/mips/include/asm/mips-boards/maltaint.h
index 987ff580466b..817698abf2eb 100644
--- a/arch/mips/include/asm/mips-boards/maltaint.h
+++ b/arch/mips/include/asm/mips-boards/maltaint.h
@@ -10,8 +10,6 @@
 #ifndef _MIPS_MALTAINT_H
 #define _MIPS_MALTAINT_H
 
-#include <linux/irqchip/mips-gic.h>
-
 /*
  * Interrupts 0..15 are used for Malta ISA compatible interrupts
  */
@@ -62,7 +60,4 @@
 #define MSC01E_INT_PERFCTR	10
 #define MSC01E_INT_CPUCTR	11
 
-/* GIC external interrupts */
-#define GIC_INT_I8259A		GIC_SHARED_TO_HWIRQ(3)
-
 #endif /* !(_MIPS_MALTAINT_H) */
diff --git a/arch/mips/include/asm/mips-cm.h b/arch/mips/include/asm/mips-cm.h
index cfdbab015769..8bc5df49b0e1 100644
--- a/arch/mips/include/asm/mips-cm.h
+++ b/arch/mips/include/asm/mips-cm.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -8,16 +8,18 @@
  * option) any later version.
  */
 
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+# error Please include asm/mips-cps.h rather than asm/mips-cm.h
+#endif
+
 #ifndef __MIPS_ASM_MIPS_CM_H__
 #define __MIPS_ASM_MIPS_CM_H__
 
 #include <linux/bitops.h>
 #include <linux/errno.h>
-#include <linux/io.h>
-#include <linux/types.h>
 
 /* The base address of the CM GCR block */
-extern void __iomem *mips_cm_base;
+extern void __iomem *mips_gcr_base;
 
 /* The base address of the CM L2-only sync region */
 extern void __iomem *mips_cm_l2sync_base;
@@ -80,7 +82,7 @@ static inline int mips_cm_probe(void)
 static inline bool mips_cm_present(void)
 {
 #ifdef CONFIG_MIPS_CM
-	return mips_cm_base != NULL;
+	return mips_gcr_base != NULL;
 #else
 	return false;
 #endif
@@ -112,321 +114,219 @@ static inline bool mips_cm_has_l2sync(void)
 /* Size of the L2-only sync region */
 #define MIPS_CM_L2SYNC_SIZE	0x1000
 
-/* Macros to ease the creation of register access functions */
-#define BUILD_CM_R_(name, off)					\
-static inline unsigned long __iomem *addr_gcr_##name(void)	\
-{								\
-	return (unsigned long __iomem *)(mips_cm_base + (off));	\
-}								\
-								\
-static inline u32 read32_gcr_##name(void)			\
-{								\
-	return __raw_readl(addr_gcr_##name());			\
-}								\
-								\
-static inline u64 read64_gcr_##name(void)			\
-{								\
-	void __iomem *addr = addr_gcr_##name();			\
-	u64 ret;						\
-								\
-	if (mips_cm_is64) {					\
-		ret = __raw_readq(addr);			\
-	} else {						\
-		ret = __raw_readl(addr);			\
-		ret |= (u64)__raw_readl(addr + 0x4) << 32;	\
-	}							\
-								\
-	return ret;						\
-}								\
-								\
-static inline unsigned long read_gcr_##name(void)		\
-{								\
-	if (mips_cm_is64)					\
-		return read64_gcr_##name();			\
-	else							\
-		return read32_gcr_##name();			\
-}
-
-#define BUILD_CM__W(name, off)					\
-static inline void write32_gcr_##name(u32 value)		\
-{								\
-	__raw_writel(value, addr_gcr_##name());			\
-}								\
-								\
-static inline void write64_gcr_##name(u64 value)		\
-{								\
-	__raw_writeq(value, addr_gcr_##name());			\
-}								\
-								\
-static inline void write_gcr_##name(unsigned long value)	\
-{								\
-	if (mips_cm_is64)					\
-		write64_gcr_##name(value);			\
-	else							\
-		write32_gcr_##name(value);			\
-}
-
-#define BUILD_CM_RW(name, off)					\
-	BUILD_CM_R_(name, off)					\
-	BUILD_CM__W(name, off)
-
-#define BUILD_CM_Cx_R_(name, off)				\
-	BUILD_CM_R_(cl_##name, MIPS_CM_CLCB_OFS + (off))	\
-	BUILD_CM_R_(co_##name, MIPS_CM_COCB_OFS + (off))
-
-#define BUILD_CM_Cx__W(name, off)				\
-	BUILD_CM__W(cl_##name, MIPS_CM_CLCB_OFS + (off))	\
-	BUILD_CM__W(co_##name, MIPS_CM_COCB_OFS + (off))
-
-#define BUILD_CM_Cx_RW(name, off)				\
-	BUILD_CM_Cx_R_(name, off)				\
-	BUILD_CM_Cx__W(name, off)
-
-/* GCB register accessor functions */
-BUILD_CM_R_(config,		MIPS_CM_GCB_OFS + 0x00)
-BUILD_CM_RW(base,		MIPS_CM_GCB_OFS + 0x08)
-BUILD_CM_RW(access,		MIPS_CM_GCB_OFS + 0x20)
-BUILD_CM_R_(rev,		MIPS_CM_GCB_OFS + 0x30)
-BUILD_CM_RW(err_control,	MIPS_CM_GCB_OFS + 0x38)
-BUILD_CM_RW(error_mask,		MIPS_CM_GCB_OFS + 0x40)
-BUILD_CM_RW(error_cause,	MIPS_CM_GCB_OFS + 0x48)
-BUILD_CM_RW(error_addr,		MIPS_CM_GCB_OFS + 0x50)
-BUILD_CM_RW(error_mult,		MIPS_CM_GCB_OFS + 0x58)
-BUILD_CM_RW(l2_only_sync_base,	MIPS_CM_GCB_OFS + 0x70)
-BUILD_CM_RW(gic_base,		MIPS_CM_GCB_OFS + 0x80)
-BUILD_CM_RW(cpc_base,		MIPS_CM_GCB_OFS + 0x88)
-BUILD_CM_RW(reg0_base,		MIPS_CM_GCB_OFS + 0x90)
-BUILD_CM_RW(reg0_mask,		MIPS_CM_GCB_OFS + 0x98)
-BUILD_CM_RW(reg1_base,		MIPS_CM_GCB_OFS + 0xa0)
-BUILD_CM_RW(reg1_mask,		MIPS_CM_GCB_OFS + 0xa8)
-BUILD_CM_RW(reg2_base,		MIPS_CM_GCB_OFS + 0xb0)
-BUILD_CM_RW(reg2_mask,		MIPS_CM_GCB_OFS + 0xb8)
-BUILD_CM_RW(reg3_base,		MIPS_CM_GCB_OFS + 0xc0)
-BUILD_CM_RW(reg3_mask,		MIPS_CM_GCB_OFS + 0xc8)
-BUILD_CM_R_(gic_status,		MIPS_CM_GCB_OFS + 0xd0)
-BUILD_CM_R_(cpc_status,		MIPS_CM_GCB_OFS + 0xf0)
-BUILD_CM_RW(l2_config,		MIPS_CM_GCB_OFS + 0x130)
-BUILD_CM_RW(sys_config2,	MIPS_CM_GCB_OFS + 0x150)
-BUILD_CM_RW(l2_pft_control,	MIPS_CM_GCB_OFS + 0x300)
-BUILD_CM_RW(l2_pft_control_b,	MIPS_CM_GCB_OFS + 0x308)
-BUILD_CM_RW(bev_base,		MIPS_CM_GCB_OFS + 0x680)
-
-/* Core Local & Core Other register accessor functions */
-BUILD_CM_Cx_RW(reset_release,	0x00)
-BUILD_CM_Cx_RW(coherence,	0x08)
-BUILD_CM_Cx_R_(config,		0x10)
-BUILD_CM_Cx_RW(other,		0x18)
-BUILD_CM_Cx_RW(reset_base,	0x20)
-BUILD_CM_Cx_R_(id,		0x28)
-BUILD_CM_Cx_RW(reset_ext_base,	0x30)
-BUILD_CM_Cx_R_(tcid_0_priority,	0x40)
-BUILD_CM_Cx_R_(tcid_1_priority,	0x48)
-BUILD_CM_Cx_R_(tcid_2_priority,	0x50)
-BUILD_CM_Cx_R_(tcid_3_priority,	0x58)
-BUILD_CM_Cx_R_(tcid_4_priority,	0x60)
-BUILD_CM_Cx_R_(tcid_5_priority,	0x68)
-BUILD_CM_Cx_R_(tcid_6_priority,	0x70)
-BUILD_CM_Cx_R_(tcid_7_priority,	0x78)
-BUILD_CM_Cx_R_(tcid_8_priority,	0x80)
-
-/* GCR_CONFIG register fields */
-#define CM_GCR_CONFIG_NUMIOCU_SHF		8
-#define CM_GCR_CONFIG_NUMIOCU_MSK		(_ULCAST_(0xf) << 8)
-#define CM_GCR_CONFIG_PCORES_SHF		0
-#define CM_GCR_CONFIG_PCORES_MSK		(_ULCAST_(0xff) << 0)
-
-/* GCR_BASE register fields */
-#define CM_GCR_BASE_GCRBASE_SHF			15
-#define CM_GCR_BASE_GCRBASE_MSK			(_ULCAST_(0x1ffff) << 15)
-#define CM_GCR_BASE_CMDEFTGT_SHF		0
-#define CM_GCR_BASE_CMDEFTGT_MSK		(_ULCAST_(0x3) << 0)
-#define  CM_GCR_BASE_CMDEFTGT_DISABLED		0
-#define  CM_GCR_BASE_CMDEFTGT_MEM		1
+#define GCR_ACCESSOR_RO(sz, off, name)					\
+	CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_GCB_OFS + off, name)		\
+	CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_COCB_OFS + off, redir_##name)
+
+#define GCR_ACCESSOR_RW(sz, off, name)					\
+	CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_GCB_OFS + off, name)		\
+	CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_COCB_OFS + off, redir_##name)
+
+#define GCR_CX_ACCESSOR_RO(sz, off, name)				\
+	CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_CLCB_OFS + off, cl_##name)	\
+	CPS_ACCESSOR_RO(gcr, sz, MIPS_CM_COCB_OFS + off, co_##name)
+
+#define GCR_CX_ACCESSOR_RW(sz, off, name)				\
+	CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_CLCB_OFS + off, cl_##name)	\
+	CPS_ACCESSOR_RW(gcr, sz, MIPS_CM_COCB_OFS + off, co_##name)
+
+/* GCR_CONFIG - Information about the system */
+GCR_ACCESSOR_RO(64, 0x000, config)
+#define CM_GCR_CONFIG_CLUSTER_COH_CAPABLE	BIT_ULL(43)
+#define CM_GCR_CONFIG_CLUSTER_ID		GENMASK_ULL(39, 32)
+#define CM_GCR_CONFIG_NUM_CLUSTERS		GENMASK(29, 23)
+#define CM_GCR_CONFIG_NUMIOCU			GENMASK(15, 8)
+#define CM_GCR_CONFIG_PCORES			GENMASK(7, 0)
+
+/* GCR_BASE - Base address of the Global Configuration Registers (GCRs) */
+GCR_ACCESSOR_RW(64, 0x008, base)
+#define CM_GCR_BASE_GCRBASE			GENMASK_ULL(47, 15)
+#define CM_GCR_BASE_CMDEFTGT			GENMASK(1, 0)
+#define  CM_GCR_BASE_CMDEFTGT_MEM		0
+#define  CM_GCR_BASE_CMDEFTGT_RESERVED		1
 #define  CM_GCR_BASE_CMDEFTGT_IOCU0		2
 #define  CM_GCR_BASE_CMDEFTGT_IOCU1		3
 
-/* GCR_RESET_EXT_BASE register fields */
-#define CM_GCR_RESET_EXT_BASE_EVARESET		BIT(31)
-#define CM_GCR_RESET_EXT_BASE_UEB		BIT(30)
-
-/* GCR_ACCESS register fields */
-#define CM_GCR_ACCESS_ACCESSEN_SHF		0
-#define CM_GCR_ACCESS_ACCESSEN_MSK		(_ULCAST_(0xff) << 0)
+/* GCR_ACCESS - Controls core/IOCU access to GCRs */
+GCR_ACCESSOR_RW(32, 0x020, access)
+#define CM_GCR_ACCESS_ACCESSEN			GENMASK(7, 0)
 
-/* GCR_REV register fields */
-#define CM_GCR_REV_MAJOR_SHF			8
-#define CM_GCR_REV_MAJOR_MSK			(_ULCAST_(0xff) << 8)
-#define CM_GCR_REV_MINOR_SHF			0
-#define CM_GCR_REV_MINOR_MSK			(_ULCAST_(0xff) << 0)
+/* GCR_REV - Indicates the Coherence Manager revision */
+GCR_ACCESSOR_RO(32, 0x030, rev)
+#define CM_GCR_REV_MAJOR			GENMASK(15, 8)
+#define CM_GCR_REV_MINOR			GENMASK(7, 0)
 
 #define CM_ENCODE_REV(major, minor) \
-		(((major) << CM_GCR_REV_MAJOR_SHF) | \
-		 ((minor) << CM_GCR_REV_MINOR_SHF))
+		(((major) << __ffs(CM_GCR_REV_MAJOR)) | \
+		 ((minor) << __ffs(CM_GCR_REV_MINOR)))
 
 #define CM_REV_CM2				CM_ENCODE_REV(6, 0)
 #define CM_REV_CM2_5				CM_ENCODE_REV(7, 0)
 #define CM_REV_CM3				CM_ENCODE_REV(8, 0)
-
-/* GCR_ERR_CONTROL register fields */
-#define CM_GCR_ERR_CONTROL_L2_ECC_EN_SHF	1
-#define CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK	(_ULCAST_(0x1) << 1)
-#define CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT_SHF	0
-#define CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT_MSK	(_ULCAST_(0x1) << 0)
-
-/* GCR_ERROR_CAUSE register fields */
-#define CM_GCR_ERROR_CAUSE_ERRTYPE_SHF		27
-#define CM_GCR_ERROR_CAUSE_ERRTYPE_MSK		(_ULCAST_(0x1f) << 27)
-#define CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF		58
-#define CM3_GCR_ERROR_CAUSE_ERRTYPE_MSK		GENMASK_ULL(63, 58)
-#define CM_GCR_ERROR_CAUSE_ERRINFO_SHF		0
-#define CM_GCR_ERROR_CAUSE_ERRINGO_MSK		(_ULCAST_(0x7ffffff) << 0)
-
-/* GCR_ERROR_MULT register fields */
-#define CM_GCR_ERROR_MULT_ERR2ND_SHF		0
-#define CM_GCR_ERROR_MULT_ERR2ND_MSK		(_ULCAST_(0x1f) << 0)
-
-/* GCR_L2_ONLY_SYNC_BASE register fields */
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_SHF	12
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_MSK	(_ULCAST_(0xfffff) << 12)
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_SHF	0
-#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_MSK	(_ULCAST_(0x1) << 0)
-
-/* GCR_GIC_BASE register fields */
-#define CM_GCR_GIC_BASE_GICBASE_SHF		17
-#define CM_GCR_GIC_BASE_GICBASE_MSK		(_ULCAST_(0x7fff) << 17)
-#define CM_GCR_GIC_BASE_GICEN_SHF		0
-#define CM_GCR_GIC_BASE_GICEN_MSK		(_ULCAST_(0x1) << 0)
-
-/* GCR_CPC_BASE register fields */
-#define CM_GCR_CPC_BASE_CPCBASE_SHF		15
-#define CM_GCR_CPC_BASE_CPCBASE_MSK		(_ULCAST_(0x1ffff) << 15)
-#define CM_GCR_CPC_BASE_CPCEN_SHF		0
-#define CM_GCR_CPC_BASE_CPCEN_MSK		(_ULCAST_(0x1) << 0)
-
-/* GCR_GIC_STATUS register fields */
-#define CM_GCR_GIC_STATUS_GICEX_SHF		0
-#define CM_GCR_GIC_STATUS_GICEX_MSK		(_ULCAST_(0x1) << 0)
-
-/* GCR_REGn_BASE register fields */
-#define CM_GCR_REGn_BASE_BASEADDR_SHF		16
-#define CM_GCR_REGn_BASE_BASEADDR_MSK		(_ULCAST_(0xffff) << 16)
-
-/* GCR_REGn_MASK register fields */
-#define CM_GCR_REGn_MASK_ADDRMASK_SHF		16
-#define CM_GCR_REGn_MASK_ADDRMASK_MSK		(_ULCAST_(0xffff) << 16)
-#define CM_GCR_REGn_MASK_CCAOVR_SHF		5
-#define CM_GCR_REGn_MASK_CCAOVR_MSK		(_ULCAST_(0x3) << 5)
-#define CM_GCR_REGn_MASK_CCAOVREN_SHF		4
-#define CM_GCR_REGn_MASK_CCAOVREN_MSK		(_ULCAST_(0x1) << 4)
-#define CM_GCR_REGn_MASK_DROPL2_SHF		2
-#define CM_GCR_REGn_MASK_DROPL2_MSK		(_ULCAST_(0x1) << 2)
-#define CM_GCR_REGn_MASK_CMTGT_SHF		0
-#define CM_GCR_REGn_MASK_CMTGT_MSK		(_ULCAST_(0x3) << 0)
-#define  CM_GCR_REGn_MASK_CMTGT_DISABLED	(_ULCAST_(0x0) << 0)
-#define  CM_GCR_REGn_MASK_CMTGT_MEM		(_ULCAST_(0x1) << 0)
-#define  CM_GCR_REGn_MASK_CMTGT_IOCU0		(_ULCAST_(0x2) << 0)
-#define  CM_GCR_REGn_MASK_CMTGT_IOCU1		(_ULCAST_(0x3) << 0)
-
-/* GCR_GIC_STATUS register fields */
-#define CM_GCR_GIC_STATUS_EX_SHF		0
-#define CM_GCR_GIC_STATUS_EX_MSK		(_ULCAST_(0x1) << 0)
-
-/* GCR_CPC_STATUS register fields */
-#define CM_GCR_CPC_STATUS_EX_SHF		0
-#define CM_GCR_CPC_STATUS_EX_MSK		(_ULCAST_(0x1) << 0)
-
-/* GCR_L2_CONFIG register fields */
-#define CM_GCR_L2_CONFIG_BYPASS_SHF		20
-#define CM_GCR_L2_CONFIG_BYPASS_MSK		(_ULCAST_(0x1) << 20)
-#define CM_GCR_L2_CONFIG_SET_SIZE_SHF		12
-#define CM_GCR_L2_CONFIG_SET_SIZE_MSK		(_ULCAST_(0xf) << 12)
-#define CM_GCR_L2_CONFIG_LINE_SIZE_SHF		8
-#define CM_GCR_L2_CONFIG_LINE_SIZE_MSK		(_ULCAST_(0xf) << 8)
-#define CM_GCR_L2_CONFIG_ASSOC_SHF		0
-#define CM_GCR_L2_CONFIG_ASSOC_MSK		(_ULCAST_(0xff) << 0)
-
-/* GCR_SYS_CONFIG2 register fields */
-#define CM_GCR_SYS_CONFIG2_MAXVPW_SHF		0
-#define CM_GCR_SYS_CONFIG2_MAXVPW_MSK		(_ULCAST_(0xf) << 0)
-
-/* GCR_L2_PFT_CONTROL register fields */
-#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_SHF	12
-#define CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK	(_ULCAST_(0xfffff) << 12)
-#define CM_GCR_L2_PFT_CONTROL_PFTEN_SHF		8
-#define CM_GCR_L2_PFT_CONTROL_PFTEN_MSK		(_ULCAST_(0x1) << 8)
-#define CM_GCR_L2_PFT_CONTROL_NPFT_SHF		0
-#define CM_GCR_L2_PFT_CONTROL_NPFT_MSK		(_ULCAST_(0xff) << 0)
-
-/* GCR_L2_PFT_CONTROL_B register fields */
-#define CM_GCR_L2_PFT_CONTROL_B_CEN_SHF		8
-#define CM_GCR_L2_PFT_CONTROL_B_CEN_MSK		(_ULCAST_(0x1) << 8)
-#define CM_GCR_L2_PFT_CONTROL_B_PORTID_SHF	0
-#define CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK	(_ULCAST_(0xff) << 0)
-
-/* GCR_Cx_COHERENCE register fields */
-#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_SHF	0
-#define CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK	(_ULCAST_(0xff) << 0)
-#define CM3_GCR_Cx_COHERENCE_COHEN_MSK		(_ULCAST_(0x1) << 0)
-
-/* GCR_Cx_CONFIG register fields */
-#define CM_GCR_Cx_CONFIG_IOCUTYPE_SHF		10
-#define CM_GCR_Cx_CONFIG_IOCUTYPE_MSK		(_ULCAST_(0x3) << 10)
-#define CM_GCR_Cx_CONFIG_PVPE_SHF		0
-#define CM_GCR_Cx_CONFIG_PVPE_MSK		(_ULCAST_(0x3ff) << 0)
-
-/* GCR_Cx_OTHER register fields */
-#define CM_GCR_Cx_OTHER_CORENUM_SHF		16
-#define CM_GCR_Cx_OTHER_CORENUM_MSK		(_ULCAST_(0xffff) << 16)
-#define CM3_GCR_Cx_OTHER_CORE_SHF		8
-#define CM3_GCR_Cx_OTHER_CORE_MSK		(_ULCAST_(0x3f) << 8)
-#define CM3_GCR_Cx_OTHER_VP_SHF			0
-#define CM3_GCR_Cx_OTHER_VP_MSK			(_ULCAST_(0x7) << 0)
-
-/* GCR_Cx_RESET_BASE register fields */
-#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE_SHF	12
-#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE_MSK	(_ULCAST_(0xfffff) << 12)
-
-/* GCR_Cx_RESET_EXT_BASE register fields */
-#define CM_GCR_Cx_RESET_EXT_BASE_EVARESET_SHF	31
-#define CM_GCR_Cx_RESET_EXT_BASE_EVARESET_MSK	(_ULCAST_(0x1) << 31)
-#define CM_GCR_Cx_RESET_EXT_BASE_UEB_SHF	30
-#define CM_GCR_Cx_RESET_EXT_BASE_UEB_MSK	(_ULCAST_(0x1) << 30)
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCMASK_SHF	20
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCMASK_MSK	(_ULCAST_(0xff) << 20)
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCPA_SHF	1
-#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCPA_MSK	(_ULCAST_(0x7f) << 1)
-#define CM_GCR_Cx_RESET_EXT_BASE_PRESENT_SHF	0
-#define CM_GCR_Cx_RESET_EXT_BASE_PRESENT_MSK	(_ULCAST_(0x1) << 0)
-
-/**
- * mips_cm_numcores - return the number of cores present in the system
- *
- * Returns the value of the PCORES field of the GCR_CONFIG register plus 1, or
- * zero if no Coherence Manager is present.
- */
-static inline unsigned mips_cm_numcores(void)
-{
-	if (!mips_cm_present())
-		return 0;
-
-	return ((read_gcr_config() & CM_GCR_CONFIG_PCORES_MSK)
-		>> CM_GCR_CONFIG_PCORES_SHF) + 1;
-}
-
-/**
- * mips_cm_numiocu - return the number of IOCUs present in the system
- *
- * Returns the value of the NUMIOCU field of the GCR_CONFIG register, or zero
- * if no Coherence Manager is present.
- */
-static inline unsigned mips_cm_numiocu(void)
-{
-	if (!mips_cm_present())
-		return 0;
-
-	return (read_gcr_config() & CM_GCR_CONFIG_NUMIOCU_MSK)
-		>> CM_GCR_CONFIG_NUMIOCU_SHF;
-}
+#define CM_REV_CM3_5				CM_ENCODE_REV(9, 0)
+
+/* GCR_ERR_CONTROL - Control error checking logic */
+GCR_ACCESSOR_RW(32, 0x038, err_control)
+#define CM_GCR_ERR_CONTROL_L2_ECC_EN		BIT(1)
+#define CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT	BIT(0)
+
+/* GCR_ERR_MASK - Control which errors are reported as interrupts */
+GCR_ACCESSOR_RW(64, 0x040, error_mask)
+
+/* GCR_ERR_CAUSE - Indicates the type of error that occurred */
+GCR_ACCESSOR_RW(64, 0x048, error_cause)
+#define CM_GCR_ERROR_CAUSE_ERRTYPE		GENMASK(31, 27)
+#define CM3_GCR_ERROR_CAUSE_ERRTYPE		GENMASK_ULL(63, 58)
+#define CM_GCR_ERROR_CAUSE_ERRINFO		GENMASK(26, 0)
+
+/* GCR_ERR_ADDR - Indicates the address associated with an error */
+GCR_ACCESSOR_RW(64, 0x050, error_addr)
+
+/* GCR_ERR_MULT - Indicates when multiple errors have occurred */
+GCR_ACCESSOR_RW(64, 0x058, error_mult)
+#define CM_GCR_ERROR_MULT_ERR2ND		GENMASK(4, 0)
+
+/* GCR_L2_ONLY_SYNC_BASE - Base address of the L2 cache-only sync region */
+GCR_ACCESSOR_RW(64, 0x070, l2_only_sync_base)
+#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE	GENMASK(31, 12)
+#define CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN		BIT(0)
+
+/* GCR_GIC_BASE - Base address of the Global Interrupt Controller (GIC) */
+GCR_ACCESSOR_RW(64, 0x080, gic_base)
+#define CM_GCR_GIC_BASE_GICBASE			GENMASK(31, 17)
+#define CM_GCR_GIC_BASE_GICEN			BIT(0)
+
+/* GCR_CPC_BASE - Base address of the Cluster Power Controller (CPC) */
+GCR_ACCESSOR_RW(64, 0x088, cpc_base)
+#define CM_GCR_CPC_BASE_CPCBASE			GENMASK(31, 15)
+#define CM_GCR_CPC_BASE_CPCEN			BIT(0)
+
+/* GCR_REGn_BASE - Base addresses of CM address regions */
+GCR_ACCESSOR_RW(64, 0x090, reg0_base)
+GCR_ACCESSOR_RW(64, 0x0a0, reg1_base)
+GCR_ACCESSOR_RW(64, 0x0b0, reg2_base)
+GCR_ACCESSOR_RW(64, 0x0c0, reg3_base)
+#define CM_GCR_REGn_BASE_BASEADDR		GENMASK(31, 16)
+
+/* GCR_REGn_MASK - Size & destination of CM address regions */
+GCR_ACCESSOR_RW(64, 0x098, reg0_mask)
+GCR_ACCESSOR_RW(64, 0x0a8, reg1_mask)
+GCR_ACCESSOR_RW(64, 0x0b8, reg2_mask)
+GCR_ACCESSOR_RW(64, 0x0c8, reg3_mask)
+#define CM_GCR_REGn_MASK_ADDRMASK		GENMASK(31, 16)
+#define CM_GCR_REGn_MASK_CCAOVR			GENMASK(7, 5)
+#define CM_GCR_REGn_MASK_CCAOVREN		BIT(4)
+#define CM_GCR_REGn_MASK_DROPL2			BIT(2)
+#define CM_GCR_REGn_MASK_CMTGT			GENMASK(1, 0)
+#define  CM_GCR_REGn_MASK_CMTGT_DISABLED	0x0
+#define  CM_GCR_REGn_MASK_CMTGT_MEM		0x1
+#define  CM_GCR_REGn_MASK_CMTGT_IOCU0		0x2
+#define  CM_GCR_REGn_MASK_CMTGT_IOCU1		0x3
+
+/* GCR_GIC_STATUS - Indicates presence of a Global Interrupt Controller (GIC) */
+GCR_ACCESSOR_RO(32, 0x0d0, gic_status)
+#define CM_GCR_GIC_STATUS_EX			BIT(0)
+
+/* GCR_CPC_STATUS - Indicates presence of a Cluster Power Controller (CPC) */
+GCR_ACCESSOR_RO(32, 0x0f0, cpc_status)
+#define CM_GCR_CPC_STATUS_EX			BIT(0)
+
+/* GCR_L2_CONFIG - Indicates L2 cache configuration when Config5.L2C=1 */
+GCR_ACCESSOR_RW(32, 0x130, l2_config)
+#define CM_GCR_L2_CONFIG_BYPASS			BIT(20)
+#define CM_GCR_L2_CONFIG_SET_SIZE		GENMASK(15, 12)
+#define CM_GCR_L2_CONFIG_LINE_SIZE		GENMASK(11, 8)
+#define CM_GCR_L2_CONFIG_ASSOC			GENMASK(7, 0)
+
+/* GCR_SYS_CONFIG2 - Further information about the system */
+GCR_ACCESSOR_RO(32, 0x150, sys_config2)
+#define CM_GCR_SYS_CONFIG2_MAXVPW		GENMASK(3, 0)
+
+/* GCR_L2_PFT_CONTROL - Controls hardware L2 prefetching */
+GCR_ACCESSOR_RW(32, 0x300, l2_pft_control)
+#define CM_GCR_L2_PFT_CONTROL_PAGEMASK		GENMASK(31, 12)
+#define CM_GCR_L2_PFT_CONTROL_PFTEN		BIT(8)
+#define CM_GCR_L2_PFT_CONTROL_NPFT		GENMASK(7, 0)
+
+/* GCR_L2_PFT_CONTROL_B - Controls hardware L2 prefetching */
+GCR_ACCESSOR_RW(32, 0x308, l2_pft_control_b)
+#define CM_GCR_L2_PFT_CONTROL_B_CEN		BIT(8)
+#define CM_GCR_L2_PFT_CONTROL_B_PORTID		GENMASK(7, 0)
+
+/* GCR_L2SM_COP - L2 cache op state machine control */
+GCR_ACCESSOR_RW(32, 0x620, l2sm_cop)
+#define CM_GCR_L2SM_COP_PRESENT			BIT(31)
+#define CM_GCR_L2SM_COP_RESULT			GENMASK(8, 6)
+#define  CM_GCR_L2SM_COP_RESULT_DONTCARE	0
+#define  CM_GCR_L2SM_COP_RESULT_DONE_OK		1
+#define  CM_GCR_L2SM_COP_RESULT_DONE_ERROR	2
+#define  CM_GCR_L2SM_COP_RESULT_ABORT_OK	3
+#define  CM_GCR_L2SM_COP_RESULT_ABORT_ERROR	4
+#define CM_GCR_L2SM_COP_RUNNING			BIT(5)
+#define CM_GCR_L2SM_COP_TYPE			GENMASK(4, 2)
+#define  CM_GCR_L2SM_COP_TYPE_IDX_WBINV		0
+#define  CM_GCR_L2SM_COP_TYPE_IDX_STORETAG	1
+#define  CM_GCR_L2SM_COP_TYPE_IDX_STORETAGDATA	2
+#define  CM_GCR_L2SM_COP_TYPE_HIT_INV		4
+#define  CM_GCR_L2SM_COP_TYPE_HIT_WBINV		5
+#define  CM_GCR_L2SM_COP_TYPE_HIT_WB		6
+#define  CM_GCR_L2SM_COP_TYPE_FETCHLOCK		7
+#define CM_GCR_L2SM_COP_CMD			GENMASK(1, 0)
+#define  CM_GCR_L2SM_COP_CMD_START		1	/* only when idle */
+#define  CM_GCR_L2SM_COP_CMD_ABORT		3	/* only when running */
+
+/* GCR_L2SM_TAG_ADDR_COP - L2 cache op state machine address control */
+GCR_ACCESSOR_RW(64, 0x628, l2sm_tag_addr_cop)
+#define CM_GCR_L2SM_TAG_ADDR_COP_NUM_LINES	GENMASK_ULL(63, 48)
+#define CM_GCR_L2SM_TAG_ADDR_COP_START_TAG	GENMASK_ULL(47, 6)
+
+/* GCR_BEV_BASE - Controls the location of the BEV for powered up cores */
+GCR_ACCESSOR_RW(64, 0x680, bev_base)
+
+/* GCR_Cx_RESET_RELEASE - Controls core reset for CM 1.x */
+GCR_CX_ACCESSOR_RW(32, 0x000, reset_release)
+
+/* GCR_Cx_COHERENCE - Controls core coherence */
+GCR_CX_ACCESSOR_RW(32, 0x008, coherence)
+#define CM_GCR_Cx_COHERENCE_COHDOMAINEN		GENMASK(7, 0)
+#define CM3_GCR_Cx_COHERENCE_COHEN		BIT(0)
+
+/* GCR_Cx_CONFIG - Information about a core's configuration */
+GCR_CX_ACCESSOR_RO(32, 0x010, config)
+#define CM_GCR_Cx_CONFIG_IOCUTYPE		GENMASK(11, 10)
+#define CM_GCR_Cx_CONFIG_PVPE			GENMASK(9, 0)
+
+/* GCR_Cx_OTHER - Configure the core-other/redirect GCR block */
+GCR_CX_ACCESSOR_RW(32, 0x018, other)
+#define CM_GCR_Cx_OTHER_CORENUM			GENMASK(31, 16)	/* CM < 3 */
+#define CM_GCR_Cx_OTHER_CLUSTER_EN		BIT(31)		/* CM >= 3.5 */
+#define CM_GCR_Cx_OTHER_GIC_EN			BIT(30)		/* CM >= 3.5 */
+#define CM_GCR_Cx_OTHER_BLOCK			GENMASK(25, 24)	/* CM >= 3.5 */
+#define  CM_GCR_Cx_OTHER_BLOCK_LOCAL		0
+#define  CM_GCR_Cx_OTHER_BLOCK_GLOBAL		1
+#define  CM_GCR_Cx_OTHER_BLOCK_USER		2
+#define  CM_GCR_Cx_OTHER_BLOCK_GLOBAL_HIGH	3
+#define CM_GCR_Cx_OTHER_CLUSTER			GENMASK(21, 16)	/* CM >= 3.5 */
+#define CM3_GCR_Cx_OTHER_CORE			GENMASK(13, 8)	/* CM >= 3 */
+#define  CM_GCR_Cx_OTHER_CORE_CM		32
+#define CM3_GCR_Cx_OTHER_VP			GENMASK(2, 0)	/* CM >= 3 */
+
+/* GCR_Cx_RESET_BASE - Configure where powered up cores will fetch from */
+GCR_CX_ACCESSOR_RW(32, 0x020, reset_base)
+#define CM_GCR_Cx_RESET_BASE_BEVEXCBASE		GENMASK(31, 12)
+
+/* GCR_Cx_ID - Identify the current core */
+GCR_CX_ACCESSOR_RO(32, 0x028, id)
+#define CM_GCR_Cx_ID_CLUSTER			GENMASK(15, 8)
+#define CM_GCR_Cx_ID_CORE			GENMASK(7, 0)
+
+/* GCR_Cx_RESET_EXT_BASE - Configure behaviour when cores reset or power up */
+GCR_CX_ACCESSOR_RW(32, 0x030, reset_ext_base)
+#define CM_GCR_Cx_RESET_EXT_BASE_EVARESET	BIT(31)
+#define CM_GCR_Cx_RESET_EXT_BASE_UEB		BIT(30)
+#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCMASK	GENMASK(27, 20)
+#define CM_GCR_Cx_RESET_EXT_BASE_BEVEXCPA	GENMASK(7, 1)
+#define CM_GCR_Cx_RESET_EXT_BASE_PRESENT	BIT(0)
 
 /**
  * mips_cm_l2sync - perform an L2-only sync operation
@@ -469,7 +369,7 @@ static inline unsigned int mips_cm_max_vp_width(void)
 	uint32_t cfg;
 
 	if (mips_cm_revision() >= CM_REV_CM3)
-		return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW_MSK;
+		return read_gcr_sys_config2() & CM_GCR_SYS_CONFIG2_MAXVPW;
 
 	if (mips_cm_present()) {
 		/*
@@ -477,8 +377,8 @@ static inline unsigned int mips_cm_max_vp_width(void)
 		 * number of VP(E)s, and if that ever changes then this will
 		 * need revisiting.
 		 */
-		cfg = read_gcr_cl_config() & CM_GCR_Cx_CONFIG_PVPE_MSK;
-		return (cfg >> CM_GCR_Cx_CONFIG_PVPE_SHF) + 1;
+		cfg = read_gcr_cl_config() & CM_GCR_Cx_CONFIG_PVPE;
+		return (cfg >> __ffs(CM_GCR_Cx_CONFIG_PVPE)) + 1;
 	}
 
 	if (IS_ENABLED(CONFIG_SMP))
@@ -499,7 +399,7 @@ static inline unsigned int mips_cm_max_vp_width(void)
  */
 static inline unsigned int mips_cm_vp_id(unsigned int cpu)
 {
-	unsigned int core = cpu_data[cpu].core;
+	unsigned int core = cpu_core(&cpu_data[cpu]);
 	unsigned int vp = cpu_vpe_id(&cpu_data[cpu]);
 
 	return (core * mips_cm_max_vp_width()) + vp;
@@ -508,29 +408,56 @@ static inline unsigned int mips_cm_vp_id(unsigned int cpu)
 #ifdef CONFIG_MIPS_CM
 
 /**
- * mips_cm_lock_other - lock access to another core
+ * mips_cm_lock_other - lock access to redirect/other region
+ * @cluster: the other cluster to be accessed
  * @core: the other core to be accessed
  * @vp: the VP within the other core to be accessed
+ * @block: the register block to be accessed
  *
- * Call before operating upon a core via the 'other' register region in
- * order to prevent the region being moved during access. Must be followed
- * by a call to mips_cm_unlock_other.
+ * Configure the redirect/other region for the local core/VP (depending upon
+ * the CM revision) to target the specified @cluster, @core, @vp & register
+ * @block. Must be called before using the redirect/other region, and followed
+ * by a call to mips_cm_unlock_other() when access to the redirect/other region
+ * is complete.
+ *
+ * This function acquires a spinlock such that code between it &
+ * mips_cm_unlock_other() calls cannot be pre-empted by anything which may
+ * reconfigure the redirect/other region, and cannot be interfered with by
+ * another VP in the core. As such calls to this function should not be nested.
  */
-extern void mips_cm_lock_other(unsigned int core, unsigned int vp);
+extern void mips_cm_lock_other(unsigned int cluster, unsigned int core,
+			       unsigned int vp, unsigned int block);
 
 /**
- * mips_cm_unlock_other - unlock access to another core
+ * mips_cm_unlock_other - unlock access to redirect/other region
  *
- * Call after operating upon another core via the 'other' register region.
- * Must be called after mips_cm_lock_other.
+ * Must be called after mips_cm_lock_other() once all required access to the
+ * redirect/other region has been completed.
  */
 extern void mips_cm_unlock_other(void);
 
 #else /* !CONFIG_MIPS_CM */
 
-static inline void mips_cm_lock_other(unsigned int core, unsigned int vp) { }
+static inline void mips_cm_lock_other(unsigned int cluster, unsigned int core,
+				      unsigned int vp, unsigned int block) { }
 static inline void mips_cm_unlock_other(void) { }
 
 #endif /* !CONFIG_MIPS_CM */
 
+/**
+ * mips_cm_lock_other_cpu - lock access to redirect/other region
+ * @cpu: the other CPU whose register we want to access
+ *
+ * Configure the redirect/other region for the local core/VP (depending upon
+ * the CM revision) to target the specified @cpu & register @block. This is
+ * equivalent to calling mips_cm_lock_other() but accepts a Linux CPU number
+ * for convenience.
+ */
+static inline void mips_cm_lock_other_cpu(unsigned int cpu, unsigned int block)
+{
+	struct cpuinfo_mips *d = &cpu_data[cpu];
+
+	mips_cm_lock_other(cpu_cluster(d), cpu_core(d), cpu_vpe_id(d), block);
+}
+
 #endif /* __MIPS_ASM_MIPS_CM_H__ */
diff --git a/arch/mips/include/asm/mips-cpc.h b/arch/mips/include/asm/mips-cpc.h
index 8c519f9827a3..b55e335cfba4 100644
--- a/arch/mips/include/asm/mips-cpc.h
+++ b/arch/mips/include/asm/mips-cpc.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -8,11 +8,15 @@
  * option) any later version.
  */
 
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+# error Please include asm/mips-cps.h rather than asm/mips-cpc.h
+#endif
+
 #ifndef __MIPS_ASM_MIPS_CPC_H__
 #define __MIPS_ASM_MIPS_CPC_H__
 
-#include <linux/io.h>
-#include <linux/types.h>
+#include <linux/bitops.h>
+#include <linux/errno.h>
 
 /* The base address of the CPC registers */
 extern void __iomem *mips_cpc_base;
@@ -61,89 +65,92 @@ static inline bool mips_cpc_present(void)
 #define MIPS_CPC_CLCB_OFS	0x2000
 #define MIPS_CPC_COCB_OFS	0x4000
 
-/* Macros to ease the creation of register access functions */
-#define BUILD_CPC_R_(name, off)					\
-static inline u32 *addr_cpc_##name(void)			\
-{								\
-	return (u32 *)(mips_cpc_base + (off));			\
-}								\
-								\
-static inline u32 read_cpc_##name(void)				\
-{								\
-	return __raw_readl(mips_cpc_base + (off));		\
-}
-
-#define BUILD_CPC__W(name, off) \
-static inline void write_cpc_##name(u32 value)			\
-{								\
-	__raw_writel(value, mips_cpc_base + (off));		\
-}
-
-#define BUILD_CPC_RW(name, off)					\
-	BUILD_CPC_R_(name, off)					\
-	BUILD_CPC__W(name, off)
-
-#define BUILD_CPC_Cx_R_(name, off)				\
-	BUILD_CPC_R_(cl_##name, MIPS_CPC_CLCB_OFS + (off))	\
-	BUILD_CPC_R_(co_##name, MIPS_CPC_COCB_OFS + (off))
-
-#define BUILD_CPC_Cx__W(name, off)				\
-	BUILD_CPC__W(cl_##name, MIPS_CPC_CLCB_OFS + (off))	\
-	BUILD_CPC__W(co_##name, MIPS_CPC_COCB_OFS + (off))
-
-#define BUILD_CPC_Cx_RW(name, off)				\
-	BUILD_CPC_Cx_R_(name, off)				\
-	BUILD_CPC_Cx__W(name, off)
-
-/* GCB register accessor functions */
-BUILD_CPC_RW(access,		MIPS_CPC_GCB_OFS + 0x00)
-BUILD_CPC_RW(seqdel,		MIPS_CPC_GCB_OFS + 0x08)
-BUILD_CPC_RW(rail,		MIPS_CPC_GCB_OFS + 0x10)
-BUILD_CPC_RW(resetlen,		MIPS_CPC_GCB_OFS + 0x18)
-BUILD_CPC_R_(revision,		MIPS_CPC_GCB_OFS + 0x20)
-
-/* Core Local & Core Other accessor functions */
-BUILD_CPC_Cx_RW(cmd,		0x00)
-BUILD_CPC_Cx_RW(stat_conf,	0x08)
-BUILD_CPC_Cx_RW(other,		0x10)
-BUILD_CPC_Cx_RW(vp_stop,	0x20)
-BUILD_CPC_Cx_RW(vp_run,		0x28)
-BUILD_CPC_Cx_RW(vp_running,	0x30)
-
-/* CPC_Cx_CMD register fields */
-#define CPC_Cx_CMD_SHF				0
-#define CPC_Cx_CMD_MSK				(_ULCAST_(0xf) << 0)
-#define  CPC_Cx_CMD_CLOCKOFF			(_ULCAST_(0x1) << 0)
-#define  CPC_Cx_CMD_PWRDOWN			(_ULCAST_(0x2) << 0)
-#define  CPC_Cx_CMD_PWRUP			(_ULCAST_(0x3) << 0)
-#define  CPC_Cx_CMD_RESET			(_ULCAST_(0x4) << 0)
-
-/* CPC_Cx_STAT_CONF register fields */
-#define CPC_Cx_STAT_CONF_PWRUPE_SHF		23
-#define CPC_Cx_STAT_CONF_PWRUPE_MSK		(_ULCAST_(0x1) << 23)
-#define CPC_Cx_STAT_CONF_SEQSTATE_SHF		19
-#define CPC_Cx_STAT_CONF_SEQSTATE_MSK		(_ULCAST_(0xf) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_D0		(_ULCAST_(0x0) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U0		(_ULCAST_(0x1) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U1		(_ULCAST_(0x2) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U2		(_ULCAST_(0x3) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U3		(_ULCAST_(0x4) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U4		(_ULCAST_(0x5) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U5		(_ULCAST_(0x6) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_U6		(_ULCAST_(0x7) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_D1		(_ULCAST_(0x8) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_D3		(_ULCAST_(0x9) << 19)
-#define  CPC_Cx_STAT_CONF_SEQSTATE_D2		(_ULCAST_(0xa) << 19)
-#define CPC_Cx_STAT_CONF_CLKGAT_IMPL_SHF	17
-#define CPC_Cx_STAT_CONF_CLKGAT_IMPL_MSK	(_ULCAST_(0x1) << 17)
-#define CPC_Cx_STAT_CONF_PWRDN_IMPL_SHF		16
-#define CPC_Cx_STAT_CONF_PWRDN_IMPL_MSK		(_ULCAST_(0x1) << 16)
-#define CPC_Cx_STAT_CONF_EJTAG_PROBE_SHF	15
-#define CPC_Cx_STAT_CONF_EJTAG_PROBE_MSK	(_ULCAST_(0x1) << 15)
-
-/* CPC_Cx_OTHER register fields */
-#define CPC_Cx_OTHER_CORENUM_SHF		16
-#define CPC_Cx_OTHER_CORENUM_MSK		(_ULCAST_(0xff) << 16)
+#define CPC_ACCESSOR_RO(sz, off, name)					\
+	CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_GCB_OFS + off, name)		\
+	CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_COCB_OFS + off, redir_##name)
+
+#define CPC_ACCESSOR_RW(sz, off, name)					\
+	CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_GCB_OFS + off, name)		\
+	CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_COCB_OFS + off, redir_##name)
+
+#define CPC_CX_ACCESSOR_RO(sz, off, name)				\
+	CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_CLCB_OFS + off, cl_##name)	\
+	CPS_ACCESSOR_RO(cpc, sz, MIPS_CPC_COCB_OFS + off, co_##name)
+
+#define CPC_CX_ACCESSOR_RW(sz, off, name)				\
+	CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_CLCB_OFS + off, cl_##name)	\
+	CPS_ACCESSOR_RW(cpc, sz, MIPS_CPC_COCB_OFS + off, co_##name)
+
+/* CPC_ACCESS - Control core/IOCU access to CPC registers prior to CM 3 */
+CPC_ACCESSOR_RW(32, 0x000, access)
+
+/* CPC_SEQDEL - Configure delays between command sequencer steps */
+CPC_ACCESSOR_RW(32, 0x008, seqdel)
+
+/* CPC_RAIL - Configure the delay from rail power-up to stability */
+CPC_ACCESSOR_RW(32, 0x010, rail)
+
+/* CPC_RESETLEN - Configure the length of reset sequences */
+CPC_ACCESSOR_RW(32, 0x018, resetlen)
+
+/* CPC_REVISION - Indicates the revisison of the CPC */
+CPC_ACCESSOR_RO(32, 0x020, revision)
+
+/* CPC_PWRUP_CTL - Control power to the Coherence Manager (CM) */
+CPC_ACCESSOR_RW(32, 0x030, pwrup_ctl)
+#define CPC_PWRUP_CTL_CM_PWRUP			BIT(0)
+
+/* CPC_CONFIG - Mirrors GCR_CONFIG */
+CPC_ACCESSOR_RW(64, 0x138, config)
+
+/* CPC_SYS_CONFIG - Control cluster endianness */
+CPC_ACCESSOR_RW(32, 0x140, sys_config)
+#define CPC_SYS_CONFIG_BE_IMMEDIATE		BIT(2)
+#define CPC_SYS_CONFIG_BE_STATUS		BIT(1)
+#define CPC_SYS_CONFIG_BE			BIT(0)
+
+/* CPC_Cx_CMD - Instruct the CPC to take action on a core */
+CPC_CX_ACCESSOR_RW(32, 0x000, cmd)
+#define CPC_Cx_CMD				GENMASK(3, 0)
+#define  CPC_Cx_CMD_CLOCKOFF			0x1
+#define  CPC_Cx_CMD_PWRDOWN			0x2
+#define  CPC_Cx_CMD_PWRUP			0x3
+#define  CPC_Cx_CMD_RESET			0x4
+
+/* CPC_Cx_STAT_CONF - Indicates core configuration & state */
+CPC_CX_ACCESSOR_RW(32, 0x008, stat_conf)
+#define CPC_Cx_STAT_CONF_PWRUPE			BIT(23)
+#define CPC_Cx_STAT_CONF_SEQSTATE		GENMASK(22, 19)
+#define  CPC_Cx_STAT_CONF_SEQSTATE_D0		0x0
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U0		0x1
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U1		0x2
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U2		0x3
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U3		0x4
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U4		0x5
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U5		0x6
+#define  CPC_Cx_STAT_CONF_SEQSTATE_U6		0x7
+#define  CPC_Cx_STAT_CONF_SEQSTATE_D1		0x8
+#define  CPC_Cx_STAT_CONF_SEQSTATE_D3		0x9
+#define  CPC_Cx_STAT_CONF_SEQSTATE_D2		0xa
+#define CPC_Cx_STAT_CONF_CLKGAT_IMPL		BIT(17)
+#define CPC_Cx_STAT_CONF_PWRDN_IMPL		BIT(16)
+#define CPC_Cx_STAT_CONF_EJTAG_PROBE		BIT(15)
+
+/* CPC_Cx_OTHER - Configure the core-other register block prior to CM 3 */
+CPC_CX_ACCESSOR_RW(32, 0x010, other)
+#define CPC_Cx_OTHER_CORENUM			GENMASK(23, 16)
+
+/* CPC_Cx_VP_STOP - Stop Virtual Processors (VPs) within a core from running */
+CPC_CX_ACCESSOR_RW(32, 0x020, vp_stop)
+
+/* CPC_Cx_VP_START - Start Virtual Processors (VPs) within a core running */
+CPC_CX_ACCESSOR_RW(32, 0x028, vp_run)
+
+/* CPC_Cx_VP_RUNNING - Indicate which Virtual Processors (VPs) are running */
+CPC_CX_ACCESSOR_RW(32, 0x030, vp_running)
+
+/* CPC_Cx_CONFIG - Mirrors GCR_Cx_CONFIG */
+CPC_CX_ACCESSOR_RW(32, 0x090, config)
 
 #ifdef CONFIG_MIPS_CPC
 
diff --git a/arch/mips/include/asm/mips-cps.h b/arch/mips/include/asm/mips-cps.h
new file mode 100644
index 000000000000..8ad4a85eed0c
--- /dev/null
+++ b/arch/mips/include/asm/mips-cps.h
@@ -0,0 +1,240 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@mips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+#define __MIPS_ASM_MIPS_CPS_H__
+
+#include <linux/io.h>
+#include <linux/types.h>
+
+extern unsigned long __cps_access_bad_size(void)
+	__compiletime_error("Bad size for CPS accessor");
+
+#define CPS_ACCESSOR_A(unit, off, name)					\
+static inline void *addr_##unit##_##name(void)				\
+{									\
+	return mips_##unit##_base + (off);				\
+}
+
+#define CPS_ACCESSOR_R(unit, sz, name)					\
+static inline uint##sz##_t read_##unit##_##name(void)			\
+{									\
+	uint64_t val64;							\
+									\
+	switch (sz) {							\
+	case 32:							\
+		return __raw_readl(addr_##unit##_##name());		\
+									\
+	case 64:							\
+		if (mips_cm_is64)					\
+			return __raw_readq(addr_##unit##_##name());	\
+									\
+		val64 = __raw_readl(addr_##unit##_##name() + 4);	\
+		val64 <<= 32;						\
+		val64 |= __raw_readl(addr_##unit##_##name());		\
+		return val64;						\
+									\
+	default:							\
+		return __cps_access_bad_size();				\
+	}								\
+}
+
+#define CPS_ACCESSOR_W(unit, sz, name)					\
+static inline void write_##unit##_##name(uint##sz##_t val)		\
+{									\
+	switch (sz) {							\
+	case 32:							\
+		__raw_writel(val, addr_##unit##_##name());		\
+		break;							\
+									\
+	case 64:							\
+		if (mips_cm_is64) {					\
+			__raw_writeq(val, addr_##unit##_##name());	\
+			break;						\
+		}							\
+									\
+		__raw_writel((uint64_t)val >> 32,			\
+			     addr_##unit##_##name() + 4);		\
+		__raw_writel(val, addr_##unit##_##name());		\
+		break;							\
+									\
+	default:							\
+		__cps_access_bad_size();				\
+		break;							\
+	}								\
+}
+
+#define CPS_ACCESSOR_M(unit, sz, name)					\
+static inline void change_##unit##_##name(uint##sz##_t mask,		\
+					  uint##sz##_t val)		\
+{									\
+	uint##sz##_t reg_val = read_##unit##_##name();			\
+	reg_val &= ~mask;						\
+	reg_val |= val;							\
+	write_##unit##_##name(reg_val);					\
+}									\
+									\
+static inline void set_##unit##_##name(uint##sz##_t val)		\
+{									\
+	change_##unit##_##name(val, val);				\
+}									\
+									\
+static inline void clear_##unit##_##name(uint##sz##_t val)		\
+{									\
+	change_##unit##_##name(val, 0);					\
+}
+
+#define CPS_ACCESSOR_RO(unit, sz, off, name)				\
+	CPS_ACCESSOR_A(unit, off, name)					\
+	CPS_ACCESSOR_R(unit, sz, name)
+
+#define CPS_ACCESSOR_WO(unit, sz, off, name)				\
+	CPS_ACCESSOR_A(unit, off, name)					\
+	CPS_ACCESSOR_W(unit, sz, name)
+
+#define CPS_ACCESSOR_RW(unit, sz, off, name)				\
+	CPS_ACCESSOR_A(unit, off, name)					\
+	CPS_ACCESSOR_R(unit, sz, name)					\
+	CPS_ACCESSOR_W(unit, sz, name)					\
+	CPS_ACCESSOR_M(unit, sz, name)
+
+#include <asm/mips-cm.h>
+#include <asm/mips-cpc.h>
+#include <asm/mips-gic.h>
+
+/**
+ * mips_cps_numclusters - return the number of clusters present in the system
+ *
+ * Returns the number of clusters in the system.
+ */
+static inline unsigned int mips_cps_numclusters(void)
+{
+	unsigned int num_clusters;
+
+	if (mips_cm_revision() < CM_REV_CM3_5)
+		return 1;
+
+	num_clusters = read_gcr_config() & CM_GCR_CONFIG_NUM_CLUSTERS;
+	num_clusters >>= __ffs(CM_GCR_CONFIG_NUM_CLUSTERS);
+	return num_clusters;
+}
+
+/**
+ * mips_cps_cluster_config - return (GCR|CPC)_CONFIG from a cluster
+ * @cluster: the ID of the cluster whose config we want
+ *
+ * Read the value of GCR_CONFIG (or its CPC_CONFIG mirror) from a @cluster.
+ *
+ * Returns the value of GCR_CONFIG.
+ */
+static inline uint64_t mips_cps_cluster_config(unsigned int cluster)
+{
+	uint64_t config;
+
+	if (mips_cm_revision() < CM_REV_CM3_5) {
+		/*
+		 * Prior to CM 3.5 we don't have the notion of multiple
+		 * clusters so we can trivially read the GCR_CONFIG register
+		 * within this cluster.
+		 */
+		WARN_ON(cluster != 0);
+		config = read_gcr_config();
+	} else {
+		/*
+		 * From CM 3.5 onwards we read the CPC_CONFIG mirror of
+		 * GCR_CONFIG via the redirect region, since the CPC is always
+		 * powered up allowing us not to need to power up the CM.
+		 */
+		mips_cm_lock_other(cluster, 0, 0, CM_GCR_Cx_OTHER_BLOCK_GLOBAL);
+		config = read_cpc_redir_config();
+		mips_cm_unlock_other();
+	}
+
+	return config;
+}
+
+/**
+ * mips_cps_numcores - return the number of cores present in a cluster
+ * @cluster: the ID of the cluster whose core count we want
+ *
+ * Returns the value of the PCORES field of the GCR_CONFIG register plus 1, or
+ * zero if no Coherence Manager is present.
+ */
+static inline unsigned int mips_cps_numcores(unsigned int cluster)
+{
+	if (!mips_cm_present())
+		return 0;
+
+	/* Add one before masking to handle 0xff indicating no cores */
+	return (mips_cps_cluster_config(cluster) + 1) & CM_GCR_CONFIG_PCORES;
+}
+
+/**
+ * mips_cps_numiocu - return the number of IOCUs present in a cluster
+ * @cluster: the ID of the cluster whose IOCU count we want
+ *
+ * Returns the value of the NUMIOCU field of the GCR_CONFIG register, or zero
+ * if no Coherence Manager is present.
+ */
+static inline unsigned int mips_cps_numiocu(unsigned int cluster)
+{
+	unsigned int num_iocu;
+
+	if (!mips_cm_present())
+		return 0;
+
+	num_iocu = mips_cps_cluster_config(cluster) & CM_GCR_CONFIG_NUMIOCU;
+	num_iocu >>= __ffs(CM_GCR_CONFIG_NUMIOCU);
+	return num_iocu;
+}
+
+/**
+ * mips_cps_numvps - return the number of VPs (threads) supported by a core
+ * @cluster: the ID of the cluster containing the core we want to examine
+ * @core: the ID of the core whose VP count we want
+ *
+ * Returns the number of Virtual Processors (VPs, ie. hardware threads) that
+ * are supported by the given @core in the given @cluster. If the core or the
+ * kernel do not support hardware mutlti-threading this returns 1.
+ */
+static inline unsigned int mips_cps_numvps(unsigned int cluster, unsigned int core)
+{
+	unsigned int cfg;
+
+	if (!mips_cm_present())
+		return 1;
+
+	if ((!IS_ENABLED(CONFIG_MIPS_MT_SMP) || !cpu_has_mipsmt)
+		&& (!IS_ENABLED(CONFIG_CPU_MIPSR6) || !cpu_has_vp))
+		return 1;
+
+	mips_cm_lock_other(cluster, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
+
+	if (mips_cm_revision() < CM_REV_CM3_5) {
+		/*
+		 * Prior to CM 3.5 we can only have one cluster & don't have
+		 * CPC_Cx_CONFIG, so we read GCR_Cx_CONFIG.
+		 */
+		cfg = read_gcr_co_config();
+	} else {
+		/*
+		 * From CM 3.5 onwards we read CPC_Cx_CONFIG because the CPC is
+		 * always powered, which allows us to not worry about powering
+		 * up the cluster's CM here.
+		 */
+		cfg = read_cpc_co_config();
+	}
+
+	mips_cm_unlock_other();
+
+	return (cfg + 1) & CM_GCR_Cx_CONFIG_PVPE;
+}
+
+#endif /* __MIPS_ASM_MIPS_CPS_H__ */
diff --git a/arch/mips/include/asm/mips-gic.h b/arch/mips/include/asm/mips-gic.h
new file mode 100644
index 000000000000..558059a8f218
--- /dev/null
+++ b/arch/mips/include/asm/mips-gic.h
@@ -0,0 +1,347 @@
+/*
+ * Copyright (C) 2017 Imagination Technologies
+ * Author: Paul Burton <paul.burton@mips.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MIPS_ASM_MIPS_CPS_H__
+# error Please include asm/mips-cps.h rather than asm/mips-gic.h
+#endif
+
+#ifndef __MIPS_ASM_MIPS_GIC_H__
+#define __MIPS_ASM_MIPS_GIC_H__
+
+#include <linux/bitops.h>
+
+/* The base address of the GIC registers */
+extern void __iomem *mips_gic_base;
+
+/* Offsets from the GIC base address to various control blocks */
+#define MIPS_GIC_SHARED_OFS	0x00000
+#define MIPS_GIC_SHARED_SZ	0x08000
+#define MIPS_GIC_LOCAL_OFS	0x08000
+#define MIPS_GIC_LOCAL_SZ	0x04000
+#define MIPS_GIC_REDIR_OFS	0x0c000
+#define MIPS_GIC_REDIR_SZ	0x04000
+#define MIPS_GIC_USER_OFS	0x10000
+#define MIPS_GIC_USER_SZ	0x10000
+
+/* For read-only shared registers */
+#define GIC_ACCESSOR_RO(sz, off, name)					\
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+
+/* For read-write shared registers */
+#define GIC_ACCESSOR_RW(sz, off, name)					\
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_SHARED_OFS + off, name)
+
+/* For read-only local registers */
+#define GIC_VX_ACCESSOR_RO(sz, off, name)				\
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_LOCAL_OFS + off, vl_##name)	\
+	CPS_ACCESSOR_RO(gic, sz, MIPS_GIC_REDIR_OFS + off, vo_##name)
+
+/* For read-write local registers */
+#define GIC_VX_ACCESSOR_RW(sz, off, name)				\
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_LOCAL_OFS + off, vl_##name)	\
+	CPS_ACCESSOR_RW(gic, sz, MIPS_GIC_REDIR_OFS + off, vo_##name)
+
+/* For read-only shared per-interrupt registers */
+#define GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+static inline void __iomem *addr_gic_##name(unsigned int intr)		\
+{									\
+	return mips_gic_base + (off) + (intr * (stride));		\
+}									\
+									\
+static inline unsigned int read_gic_##name(unsigned int intr)		\
+{									\
+	BUILD_BUG_ON(sz != 32);						\
+	return __raw_readl(addr_gic_##name(intr));			\
+}
+
+/* For read-write shared per-interrupt registers */
+#define GIC_ACCESSOR_RW_INTR_REG(sz, off, stride, name)			\
+	GIC_ACCESSOR_RO_INTR_REG(sz, off, stride, name)			\
+									\
+static inline void write_gic_##name(unsigned int intr,			\
+				    unsigned int val)			\
+{									\
+	BUILD_BUG_ON(sz != 32);						\
+	__raw_writel(val, addr_gic_##name(intr));			\
+}
+
+/* For read-only local per-interrupt registers */
+#define GIC_VX_ACCESSOR_RO_INTR_REG(sz, off, stride, name)		\
+	GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
+				 stride, vl_##name)			\
+	GIC_ACCESSOR_RO_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
+				 stride, vo_##name)
+
+/* For read-write local per-interrupt registers */
+#define GIC_VX_ACCESSOR_RW_INTR_REG(sz, off, stride, name)		\
+	GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_LOCAL_OFS + off,		\
+				 stride, vl_##name)			\
+	GIC_ACCESSOR_RW_INTR_REG(sz, MIPS_GIC_REDIR_OFS + off,		\
+				 stride, vo_##name)
+
+/* For read-only shared bit-per-interrupt registers */
+#define GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+static inline void __iomem *addr_gic_##name(void)			\
+{									\
+	return mips_gic_base + (off);					\
+}									\
+									\
+static inline unsigned int read_gic_##name(unsigned int intr)		\
+{									\
+	void __iomem *addr = addr_gic_##name();				\
+	unsigned int val;						\
+									\
+	if (mips_cm_is64) {						\
+		addr += (intr / 64) * sizeof(uint64_t);			\
+		val = __raw_readq(addr) >> intr % 64;			\
+	} else {							\
+		addr += (intr / 32) * sizeof(uint32_t);			\
+		val = __raw_readl(addr) >> intr % 32;			\
+	}								\
+									\
+	return val & 0x1;						\
+}
+
+/* For read-write shared bit-per-interrupt registers */
+#define GIC_ACCESSOR_RW_INTR_BIT(off, name)				\
+	GIC_ACCESSOR_RO_INTR_BIT(off, name)				\
+									\
+static inline void write_gic_##name(unsigned int intr)			\
+{									\
+	void __iomem *addr = addr_gic_##name();				\
+									\
+	if (mips_cm_is64) {						\
+		addr += (intr / 64) * sizeof(uint64_t);			\
+		__raw_writeq(BIT(intr % 64), addr);			\
+	} else {							\
+		addr += (intr / 32) * sizeof(uint32_t);			\
+		__raw_writel(BIT(intr % 32), addr);			\
+	}								\
+}									\
+									\
+static inline void change_gic_##name(unsigned int intr,			\
+				     unsigned int val)			\
+{									\
+	void __iomem *addr = addr_gic_##name();				\
+									\
+	if (mips_cm_is64) {						\
+		uint64_t _val;						\
+									\
+		addr += (intr / 64) * sizeof(uint64_t);			\
+		_val = __raw_readq(addr);				\
+		_val &= ~BIT_ULL(intr % 64);				\
+		_val |= (uint64_t)val << (intr % 64);			\
+		__raw_writeq(_val, addr);				\
+	} else {							\
+		uint32_t _val;						\
+									\
+		addr += (intr / 32) * sizeof(uint32_t);			\
+		_val = __raw_readl(addr);				\
+		_val &= ~BIT(intr % 32);				\
+		_val |= val << (intr % 32);				\
+		__raw_writel(_val, addr);				\
+	}								\
+}
+
+/* For read-only local bit-per-interrupt registers */
+#define GIC_VX_ACCESSOR_RO_INTR_BIT(sz, off, name)			\
+	GIC_ACCESSOR_RO_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
+				 vl_##name)				\
+	GIC_ACCESSOR_RO_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off,		\
+				 vo_##name)
+
+/* For read-write local bit-per-interrupt registers */
+#define GIC_VX_ACCESSOR_RW_INTR_BIT(sz, off, name)			\
+	GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_LOCAL_OFS + off,		\
+				 vl_##name)				\
+	GIC_ACCESSOR_RW_INTR_BIT(sz, MIPS_GIC_REDIR_OFS + off,		\
+				 vo_##name)
+
+/* GIC_SH_CONFIG - Information about the GIC configuration */
+GIC_ACCESSOR_RW(32, 0x000, config)
+#define GIC_CONFIG_COUNTSTOP		BIT(28)
+#define GIC_CONFIG_COUNTBITS		GENMASK(27, 24)
+#define GIC_CONFIG_NUMINTERRUPTS	GENMASK(23, 16)
+#define GIC_CONFIG_PVPS			GENMASK(6, 0)
+
+/* GIC_SH_COUNTER - Shared global counter value */
+GIC_ACCESSOR_RW(64, 0x010, counter)
+GIC_ACCESSOR_RW(32, 0x010, counter_32l)
+GIC_ACCESSOR_RW(32, 0x014, counter_32h)
+
+/* GIC_SH_POL_* - Configures interrupt polarity */
+GIC_ACCESSOR_RW_INTR_BIT(0x100, pol)
+#define GIC_POL_ACTIVE_LOW		0	/* when level triggered */
+#define GIC_POL_ACTIVE_HIGH		1	/* when level triggered */
+#define GIC_POL_FALLING_EDGE		0	/* when single-edge triggered */
+#define GIC_POL_RISING_EDGE		1	/* when single-edge triggered */
+
+/* GIC_SH_TRIG_* - Configures interrupts to be edge or level triggered */
+GIC_ACCESSOR_RW_INTR_BIT(0x180, trig)
+#define GIC_TRIG_LEVEL			0
+#define GIC_TRIG_EDGE			1
+
+/* GIC_SH_DUAL_* - Configures whether interrupts trigger on both edges */
+GIC_ACCESSOR_RW_INTR_BIT(0x200, dual)
+#define GIC_DUAL_SINGLE			0	/* when edge-triggered */
+#define GIC_DUAL_DUAL			1	/* when edge-triggered */
+
+/* GIC_SH_WEDGE - Write an 'edge', ie. trigger an interrupt */
+GIC_ACCESSOR_RW(32, 0x280, wedge)
+#define GIC_WEDGE_RW			BIT(31)
+#define GIC_WEDGE_INTR			GENMASK(7, 0)
+
+/* GIC_SH_RMASK_* - Reset/clear shared interrupt mask bits */
+GIC_ACCESSOR_RW_INTR_BIT(0x300, rmask)
+
+/* GIC_SH_SMASK_* - Set shared interrupt mask bits */
+GIC_ACCESSOR_RW_INTR_BIT(0x380, smask)
+
+/* GIC_SH_MASK_* - Read the current shared interrupt mask */
+GIC_ACCESSOR_RO_INTR_BIT(0x400, mask)
+
+/* GIC_SH_PEND_* - Read currently pending shared interrupts */
+GIC_ACCESSOR_RO_INTR_BIT(0x480, pend)
+
+/* GIC_SH_MAPx_PIN - Map shared interrupts to a particular CPU pin */
+GIC_ACCESSOR_RW_INTR_REG(32, 0x500, 0x4, map_pin)
+#define GIC_MAP_PIN_MAP_TO_PIN		BIT(31)
+#define GIC_MAP_PIN_MAP_TO_NMI		BIT(30)
+#define GIC_MAP_PIN_MAP			GENMASK(5, 0)
+
+/* GIC_SH_MAPx_VP - Map shared interrupts to a particular Virtual Processor */
+GIC_ACCESSOR_RW_INTR_REG(32, 0x2000, 0x20, map_vp)
+
+/* GIC_Vx_CTL - VP-level interrupt control */
+GIC_VX_ACCESSOR_RW(32, 0x000, ctl)
+#define GIC_VX_CTL_FDC_ROUTABLE		BIT(4)
+#define GIC_VX_CTL_SWINT_ROUTABLE	BIT(3)
+#define GIC_VX_CTL_PERFCNT_ROUTABLE	BIT(2)
+#define GIC_VX_CTL_TIMER_ROUTABLE	BIT(1)
+#define GIC_VX_CTL_EIC			BIT(0)
+
+/* GIC_Vx_PEND - Read currently pending local interrupts */
+GIC_VX_ACCESSOR_RO(32, 0x004, pend)
+
+/* GIC_Vx_MASK - Read the current local interrupt mask */
+GIC_VX_ACCESSOR_RO(32, 0x008, mask)
+
+/* GIC_Vx_RMASK - Reset/clear local interrupt mask bits */
+GIC_VX_ACCESSOR_RW(32, 0x00c, rmask)
+
+/* GIC_Vx_SMASK - Set local interrupt mask bits */
+GIC_VX_ACCESSOR_RW(32, 0x010, smask)
+
+/* GIC_Vx_*_MAP - Route local interrupts to the desired pins */
+GIC_VX_ACCESSOR_RW_INTR_REG(32, 0x040, 0x4, map)
+
+/* GIC_Vx_WD_MAP - Route the local watchdog timer interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x040, wd_map)
+
+/* GIC_Vx_COMPARE_MAP - Route the local count/compare interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x044, compare_map)
+
+/* GIC_Vx_TIMER_MAP - Route the local CPU timer (cp0 count/compare) interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x048, timer_map)
+
+/* GIC_Vx_FDC_MAP - Route the local fast debug channel interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x04c, fdc_map)
+
+/* GIC_Vx_PERFCTR_MAP - Route the local performance counter interrupt */
+GIC_VX_ACCESSOR_RW(32, 0x050, perfctr_map)
+
+/* GIC_Vx_SWINT0_MAP - Route the local software interrupt 0 */
+GIC_VX_ACCESSOR_RW(32, 0x054, swint0_map)
+
+/* GIC_Vx_SWINT1_MAP - Route the local software interrupt 1 */
+GIC_VX_ACCESSOR_RW(32, 0x058, swint1_map)
+
+/* GIC_Vx_OTHER - Configure access to other Virtual Processor registers */
+GIC_VX_ACCESSOR_RW(32, 0x080, other)
+#define GIC_VX_OTHER_VPNUM		GENMASK(5, 0)
+
+/* GIC_Vx_IDENT - Retrieve the local Virtual Processor's ID */
+GIC_VX_ACCESSOR_RO(32, 0x088, ident)
+#define GIC_VX_IDENT_VPNUM		GENMASK(5, 0)
+
+/* GIC_Vx_COMPARE - Value to compare with GIC_SH_COUNTER */
+GIC_VX_ACCESSOR_RW(64, 0x0a0, compare)
+
+/* GIC_Vx_EIC_SHADOW_SET_BASE - Set shadow register set for each interrupt */
+GIC_VX_ACCESSOR_RW_INTR_REG(32, 0x100, 0x4, eic_shadow_set)
+
+/**
+ * enum mips_gic_local_interrupt - GIC local interrupts
+ * @GIC_LOCAL_INT_WD: GIC watchdog timer interrupt
+ * @GIC_LOCAL_INT_COMPARE: GIC count/compare interrupt
+ * @GIC_LOCAL_INT_TIMER: CP0 count/compare interrupt
+ * @GIC_LOCAL_INT_PERFCTR: Performance counter interrupt
+ * @GIC_LOCAL_INT_SWINT0: Software interrupt 0
+ * @GIC_LOCAL_INT_SWINT1: Software interrupt 1
+ * @GIC_LOCAL_INT_FDC: Fast debug channel interrupt
+ * @GIC_NUM_LOCAL_INTRS: The number of local interrupts
+ *
+ * Enumerates interrupts provided by the GIC that are local to a VP.
+ */
+enum mips_gic_local_interrupt {
+	GIC_LOCAL_INT_WD,
+	GIC_LOCAL_INT_COMPARE,
+	GIC_LOCAL_INT_TIMER,
+	GIC_LOCAL_INT_PERFCTR,
+	GIC_LOCAL_INT_SWINT0,
+	GIC_LOCAL_INT_SWINT1,
+	GIC_LOCAL_INT_FDC,
+	GIC_NUM_LOCAL_INTRS
+};
+
+/**
+ * mips_gic_present() - Determine whether a GIC is present
+ *
+ * Determines whether a MIPS Global Interrupt Controller (GIC) is present in
+ * the system that the kernel is running on.
+ *
+ * Return true if a GIC is present, else false.
+ */
+static inline bool mips_gic_present(void)
+{
+	return IS_ENABLED(CONFIG_MIPS_GIC) && mips_gic_base;
+}
+
+/**
+ * gic_get_c0_compare_int() - Return cp0 count/compare interrupt virq
+ *
+ * Determine the virq number to use for the coprocessor 0 count/compare
+ * interrupt, which may be routed via the GIC.
+ *
+ * Returns the virq number or a negative error number.
+ */
+extern int gic_get_c0_compare_int(void);
+
+/**
+ * gic_get_c0_perfcount_int() - Return performance counter interrupt virq
+ *
+ * Determine the virq number to use for CPU performance counter interrupts,
+ * which may be routed via the GIC.
+ *
+ * Returns the virq number or a negative error number.
+ */
+extern int gic_get_c0_perfcount_int(void);
+
+/**
+ * gic_get_c0_fdc_int() - Return fast debug channel interrupt virq
+ *
+ * Determine the virq number to use for fast debug channel (FDC) interrupts,
+ * which may be routed via the GIC.
+ *
+ * Returns the virq number or a negative error number.
+ */
+extern int gic_get_c0_fdc_int(void);
+
+#endif /* __MIPS_ASM_MIPS_CPS_H__ */
diff --git a/arch/mips/include/asm/mips_mt.h b/arch/mips/include/asm/mips_mt.h
index aa4cca060e0a..b444523ecd50 100644
--- a/arch/mips/include/asm/mips_mt.h
+++ b/arch/mips/include/asm/mips_mt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions and declarations for MIPS MT support that are common between
  * the VSMP, and AP/SP kernel models.
diff --git a/arch/mips/include/asm/mipsmtregs.h b/arch/mips/include/asm/mipsmtregs.h
index 5f8052ce43bf..212336b7c0f4 100644
--- a/arch/mips/include/asm/mipsmtregs.h
+++ b/arch/mips/include/asm/mipsmtregs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MT regs definitions, follows on from mipsregs.h
  * Copyright (C) 2004 - 2005 MIPS Technologies, Inc.  All rights reserved.
diff --git a/arch/mips/include/asm/mipsprom.h b/arch/mips/include/asm/mipsprom.h
index e93943fabeac..2eda19f8fd4c 100644
--- a/arch/mips/include/asm/mipsprom.h
+++ b/arch/mips/include/asm/mipsprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MIPSPROM_H
 #define __ASM_MIPSPROM_H
 
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index dbb0eceda2c6..a6810923b3f0 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -48,6 +48,7 @@
 #define CP0_ENTRYLO0 $2
 #define CP0_ENTRYLO1 $3
 #define CP0_CONF $3
+#define CP0_GLOBALNUMBER $3, 1
 #define CP0_CONTEXT $4
 #define CP0_PAGEMASK $5
 #define CP0_SEGCTL0 $5, 2
@@ -148,6 +149,16 @@
 #define MIPS_ENTRYLO_RI		(_ULCAST_(1) << (BITS_PER_LONG - 1))
 
 /*
+ * MIPSr6+ GlobalNumber register definitions
+ */
+#define MIPS_GLOBALNUMBER_VP_SHF	0
+#define MIPS_GLOBALNUMBER_VP		(_ULCAST_(0xff) << MIPS_GLOBALNUMBER_VP_SHF)
+#define MIPS_GLOBALNUMBER_CORE_SHF	8
+#define MIPS_GLOBALNUMBER_CORE		(_ULCAST_(0xff) << MIPS_GLOBALNUMBER_CORE_SHF)
+#define MIPS_GLOBALNUMBER_CLUSTER_SHF	16
+#define MIPS_GLOBALNUMBER_CLUSTER	(_ULCAST_(0xf) << MIPS_GLOBALNUMBER_CLUSTER_SHF)
+
+/*
  * Values for PageMask register
  */
 #ifdef CONFIG_CPU_VR41XX
@@ -1366,29 +1377,32 @@ do {									\
 
 #define __write_64bit_c0_split(source, sel, val)			\
 do {									\
+	unsigned long long __tmp;					\
 	unsigned long __flags;						\
 									\
 	local_irq_save(__flags);					\
 	if (sel == 0)							\
 		__asm__ __volatile__(					\
 			".set\tmips64\n\t"				\
-			"dsll\t%L0, %L0, 32\n\t"			\
+			"dsll\t%L0, %L1, 32\n\t"			\
 			"dsrl\t%L0, %L0, 32\n\t"			\
-			"dsll\t%M0, %M0, 32\n\t"			\
+			"dsll\t%M0, %M1, 32\n\t"			\
 			"or\t%L0, %L0, %M0\n\t"				\
 			"dmtc0\t%L0, " #source "\n\t"			\
 			".set\tmips0"					\
-			: : "r" (val));					\
+			: "=&r,r" (__tmp)				\
+			: "r,0" (val));					\
 	else								\
 		__asm__ __volatile__(					\
 			".set\tmips64\n\t"				\
-			"dsll\t%L0, %L0, 32\n\t"			\
+			"dsll\t%L0, %L1, 32\n\t"			\
 			"dsrl\t%L0, %L0, 32\n\t"			\
-			"dsll\t%M0, %M0, 32\n\t"			\
+			"dsll\t%M0, %M1, 32\n\t"			\
 			"or\t%L0, %L0, %M0\n\t"				\
 			"dmtc0\t%L0, " #source ", " #sel "\n\t"		\
 			".set\tmips0"					\
-			: : "r" (val));					\
+			: "=&r,r" (__tmp)				\
+			: "r,0" (val));					\
 	local_irq_restore(__flags);					\
 } while (0)
 
@@ -1446,6 +1460,8 @@ do {									\
 #define read_c0_conf()		__read_32bit_c0_register($3, 0)
 #define write_c0_conf(val)	__write_32bit_c0_register($3, 0, val)
 
+#define read_c0_globalnumber()	__read_32bit_c0_register($3, 1)
+
 #define read_c0_context()	__read_ulong_c0_register($4, 0)
 #define write_c0_context(val)	__write_ulong_c0_register($4, 0, val)
 
diff --git a/arch/mips/include/asm/mmu.h b/arch/mips/include/asm/mmu.h
index f6ba08d77931..0740be7d5d4a 100644
--- a/arch/mips/include/asm/mmu.h
+++ b/arch/mips/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MMU_H
 #define __ASM_MMU_H
 
diff --git a/arch/mips/include/asm/mmzone.h b/arch/mips/include/asm/mmzone.h
index f53ec54c92ff..f085fba41da5 100644
--- a/arch/mips/include/asm/mmzone.h
+++ b/arch/mips/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
  * Rewritten for Linux 2.6 by Christoph Hellwig (hch@lst.de) Jan 2004
diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h
index e51add184717..6dc0b21b8acd 100644
--- a/arch/mips/include/asm/module.h
+++ b/arch/mips/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_MODULE_H
 #define _ASM_MODULE_H
 
@@ -114,8 +115,6 @@ search_module_dbetables(unsigned long addr)
 #define MODULE_PROC_FAMILY "R5432 "
 #elif defined CONFIG_CPU_R5500
 #define MODULE_PROC_FAMILY "R5500 "
-#elif defined CONFIG_CPU_R6000
-#define MODULE_PROC_FAMILY "R6000 "
 #elif defined CONFIG_CPU_NEVADA
 #define MODULE_PROC_FAMILY "NEVADA "
 #elif defined CONFIG_CPU_R8000
diff --git a/arch/mips/include/asm/msa.h b/arch/mips/include/asm/msa.h
index 8967b475ab10..b1845102f8f9 100644
--- a/arch/mips/include/asm/msa.h
+++ b/arch/mips/include/asm/msa.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/netlogic/common.h b/arch/mips/include/asm/netlogic/common.h
index e0717d10e650..a6e6cbebe046 100644
--- a/arch/mips/include/asm/netlogic/common.h
+++ b/arch/mips/include/asm/netlogic/common.h
@@ -84,7 +84,7 @@ nlm_set_nmi_handler(void *handler)
  */
 void nlm_init_boot_cpu(void);
 unsigned int nlm_get_cpu_frequency(void);
-extern struct plat_smp_ops nlm_smp_ops;
+extern const struct plat_smp_ops nlm_smp_ops;
 extern char nlm_reset_entry[], nlm_reset_entry_end[];
 
 /* SWIOTLB */
diff --git a/arch/mips/include/asm/nile4.h b/arch/mips/include/asm/nile4.h
index 99e97f8bfbca..9d36b7823603 100644
--- a/arch/mips/include/asm/nile4.h
+++ b/arch/mips/include/asm/nile4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  asm-mips/nile4.h -- NEC Vrc-5074 Nile 4 definitions
  *
diff --git a/arch/mips/include/asm/octeon/cvmx-boot-vector.h b/arch/mips/include/asm/octeon/cvmx-boot-vector.h
new file mode 100644
index 000000000000..8db08241d53c
--- /dev/null
+++ b/arch/mips/include/asm/octeon/cvmx-boot-vector.h
@@ -0,0 +1,53 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003-2017 Cavium, Inc.
+ */
+
+#ifndef __CVMX_BOOT_VECTOR_H__
+#define __CVMX_BOOT_VECTOR_H__
+
+#include <asm/octeon/octeon.h>
+
+/*
+ * The boot vector table is made up of an array of 1024 elements of
+ * struct cvmx_boot_vector_element.  There is one entry for each
+ * possible MIPS CPUNum, indexed by the CPUNum.
+ *
+ * Once cvmx_boot_vector_get() returns a non-NULL value (indicating
+ * success), NMI to a core will cause execution to transfer to the
+ * target_ptr location for that core's entry in the vector table.
+ *
+ * The struct cvmx_boot_vector_element fields app0, app1, and app2 can
+ * be used by the application that has set the target_ptr in any
+ * application specific manner, they are not touched by the vectoring
+ * code.
+ *
+ * The boot vector code clobbers the CP0_DESAVE register, and on
+ * OCTEON II and later CPUs also clobbers CP0_KScratch2.  All GP
+ * registers are preserved, except on pre-OCTEON II CPUs, where k1 is
+ * clobbered.
+ *
+ */
+
+
+/*
+ * Applications install the boot bus code in cvmx-boot-vector.c, which
+ * uses this magic:
+ */
+#define OCTEON_BOOT_MOVEABLE_MAGIC1 0xdb00110ad358eacdull
+
+struct cvmx_boot_vector_element {
+	/* kseg0 or xkphys address of target code. */
+	uint64_t target_ptr;
+	/* Three application specific arguments. */
+	uint64_t app0;
+	uint64_t app1;
+	uint64_t app2;
+};
+
+struct cvmx_boot_vector_element *cvmx_boot_vector_get(void);
+
+#endif /* __CVMX_BOOT_VECTOR_H__ */
diff --git a/arch/mips/include/asm/octeon/cvmx-bootmem.h b/arch/mips/include/asm/octeon/cvmx-bootmem.h
index 374562507d0b..72d2e403a6e4 100644
--- a/arch/mips/include/asm/octeon/cvmx-bootmem.h
+++ b/arch/mips/include/asm/octeon/cvmx-bootmem.h
@@ -255,6 +255,34 @@ extern void *cvmx_bootmem_alloc_named_range(uint64_t size, uint64_t min_addr,
 					    uint64_t max_addr, uint64_t align,
 					    char *name);
 
+/**
+ * Allocate if needed a block of memory from a specific range of the
+ * free list that was passed to the application by the bootloader, and
+ * assign it a name in the global named block table.  (part of the
+ * cvmx_bootmem_descriptor_t structure) Named blocks can later be
+ * freed.  If the requested name block is already allocated, return
+ * the pointer to block of memory.  If request cannot be satisfied
+ * within the address range specified, NULL is returned
+ *
+ * @param size   Size in bytes of block to allocate
+ * @param min_addr  minimum address of range
+ * @param max_addr  maximum address of range
+ * @param align  Alignment of memory to be allocated. (must be a power of 2)
+ * @param name   name of block - must be less than CVMX_BOOTMEM_NAME_LEN bytes
+ * @param init   Initialization function
+ *
+ * The initialization function is optional, if omitted the named block
+ * is initialized to all zeros when it is created, i.e. once.
+ *
+ * @return pointer to block of memory, NULL on error
+ */
+void *cvmx_bootmem_alloc_named_range_once(uint64_t size,
+					  uint64_t min_addr,
+					  uint64_t max_addr,
+					  uint64_t align,
+					  char *name,
+					  void (*init) (void *));
+
 extern int cvmx_bootmem_free_named(char *name);
 
 /**
diff --git a/arch/mips/include/asm/octeon/cvmx-ciu-defs.h b/arch/mips/include/asm/octeon/cvmx-ciu-defs.h
index 0dd0e40c96d4..6e61792d9248 100644
--- a/arch/mips/include/asm/octeon/cvmx-ciu-defs.h
+++ b/arch/mips/include/asm/octeon/cvmx-ciu-defs.h
@@ -128,6 +128,7 @@ static inline uint64_t CVMX_CIU_PP_POKEX(unsigned long offset)
 	case OCTEON_CN52XX & OCTEON_FAMILY_MASK:
 	case OCTEON_CNF71XX & OCTEON_FAMILY_MASK:
 	case OCTEON_CN61XX & OCTEON_FAMILY_MASK:
+	case OCTEON_CN70XX & OCTEON_FAMILY_MASK:
 		return CVMX_ADD_IO_SEG(0x0001070000000580ull) + (offset) * 8;
 	case OCTEON_CN31XX & OCTEON_FAMILY_MASK:
 	case OCTEON_CN50XX & OCTEON_FAMILY_MASK:
@@ -143,6 +144,10 @@ static inline uint64_t CVMX_CIU_PP_POKEX(unsigned long offset)
 		return CVMX_ADD_IO_SEG(0x0001070000000580ull) + (offset) * 8;
 	case OCTEON_CN68XX & OCTEON_FAMILY_MASK:
 		return CVMX_ADD_IO_SEG(0x0001070100100200ull) + (offset) * 8;
+	case OCTEON_CNF75XX & OCTEON_FAMILY_MASK:
+	case OCTEON_CN73XX & OCTEON_FAMILY_MASK:
+	case OCTEON_CN78XX & OCTEON_FAMILY_MASK:
+		return CVMX_ADD_IO_SEG(0x0001010000030000ull) + (offset) * 8;
 	}
 	return CVMX_ADD_IO_SEG(0x0001070000000580ull) + (offset) * 8;
 }
@@ -180,6 +185,7 @@ static inline uint64_t CVMX_CIU_WDOGX(unsigned long offset)
 	case OCTEON_CN52XX & OCTEON_FAMILY_MASK:
 	case OCTEON_CNF71XX & OCTEON_FAMILY_MASK:
 	case OCTEON_CN61XX & OCTEON_FAMILY_MASK:
+	case OCTEON_CN70XX & OCTEON_FAMILY_MASK:
 		return CVMX_ADD_IO_SEG(0x0001070000000500ull) + (offset) * 8;
 	case OCTEON_CN31XX & OCTEON_FAMILY_MASK:
 	case OCTEON_CN50XX & OCTEON_FAMILY_MASK:
@@ -195,6 +201,10 @@ static inline uint64_t CVMX_CIU_WDOGX(unsigned long offset)
 		return CVMX_ADD_IO_SEG(0x0001070000000500ull) + (offset) * 8;
 	case OCTEON_CN68XX & OCTEON_FAMILY_MASK:
 		return CVMX_ADD_IO_SEG(0x0001070100100000ull) + (offset) * 8;
+	case OCTEON_CNF75XX & OCTEON_FAMILY_MASK:
+	case OCTEON_CN73XX & OCTEON_FAMILY_MASK:
+	case OCTEON_CN78XX & OCTEON_FAMILY_MASK:
+		return CVMX_ADD_IO_SEG(0x0001010000020000ull) + (offset) * 8;
 	}
 	return CVMX_ADD_IO_SEG(0x0001070000000500ull) + (offset) * 8;
 }
diff --git a/arch/mips/include/asm/octeon/cvmx-config.h b/arch/mips/include/asm/octeon/cvmx-config.h
index f4f1996e0fac..a8c358c02b05 100644
--- a/arch/mips/include/asm/octeon/cvmx-config.h
+++ b/arch/mips/include/asm/octeon/cvmx-config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CVMX_CONFIG_H__
 #define __CVMX_CONFIG_H__
 
diff --git a/arch/mips/include/asm/octeon/cvmx.h b/arch/mips/include/asm/octeon/cvmx.h
index e638735cc3ac..205ab2ce10f8 100644
--- a/arch/mips/include/asm/octeon/cvmx.h
+++ b/arch/mips/include/asm/octeon/cvmx.h
@@ -357,6 +357,34 @@ static inline unsigned int cvmx_get_local_core_num(void)
 	return cvmx_get_core_num() & ((1 << CVMX_NODE_NO_SHIFT) - 1);
 }
 
+#define CVMX_NODE_BITS         (2)     /* Number of bits to define a node */
+#define CVMX_MAX_NODES         (1 << CVMX_NODE_BITS)
+#define CVMX_NODE_IO_SHIFT     (36)
+#define CVMX_NODE_MEM_SHIFT    (40)
+#define CVMX_NODE_IO_MASK      ((uint64_t)CVMX_NODE_MASK << CVMX_NODE_IO_SHIFT)
+
+static inline void cvmx_write_csr_node(uint64_t node, uint64_t csr_addr,
+				       uint64_t val)
+{
+	uint64_t composite_csr_addr, node_addr;
+
+	node_addr = (node & CVMX_NODE_MASK) << CVMX_NODE_IO_SHIFT;
+	composite_csr_addr = (csr_addr & ~CVMX_NODE_IO_MASK) | node_addr;
+
+	cvmx_write64_uint64(composite_csr_addr, val);
+	if (((csr_addr >> 40) & 0x7ffff) == (0x118))
+		cvmx_read64_uint64(CVMX_MIO_BOOT_BIST_STAT | node_addr);
+}
+
+static inline uint64_t cvmx_read_csr_node(uint64_t node, uint64_t csr_addr)
+{
+	uint64_t node_addr;
+
+	node_addr = (csr_addr & ~CVMX_NODE_IO_MASK) |
+		    (node & CVMX_NODE_MASK) << CVMX_NODE_IO_SHIFT;
+	return cvmx_read_csr(node_addr);
+}
+
 /**
  * Returns the number of bits set in the provided value.
  * Simple wrapper for POP instruction.
diff --git a/arch/mips/include/asm/octeon/octeon.h b/arch/mips/include/asm/octeon/octeon.h
index 07c0516ef4d5..c99c4b6a79f4 100644
--- a/arch/mips/include/asm/octeon/octeon.h
+++ b/arch/mips/include/asm/octeon/octeon.h
@@ -362,4 +362,6 @@ extern void octeon_fixup_irqs(void);
 
 extern struct semaphore octeon_bootbus_sem;
 
+struct irq_domain *octeon_irq_get_block_domain(int node, uint8_t block);
+
 #endif /* __ASM_OCTEON_OCTEON_H */
diff --git a/arch/mips/include/asm/pm-cps.h b/arch/mips/include/asm/pm-cps.h
index 89d58d80b77b..bb0616967342 100644
--- a/arch/mips/include/asm/pm-cps.h
+++ b/arch/mips/include/asm/pm-cps.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/seccomp.h b/arch/mips/include/asm/seccomp.h
index d886d6f7687a..e383d7e27b93 100644
--- a/arch/mips/include/asm/seccomp.h
+++ b/arch/mips/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SECCOMP_H
 
 #include <linux/unistd.h>
diff --git a/arch/mips/include/asm/setup.h b/arch/mips/include/asm/setup.h
index 4f5279a8308d..d49d247d48a1 100644
--- a/arch/mips/include/asm/setup.h
+++ b/arch/mips/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MIPS_SETUP_H
 #define _MIPS_SETUP_H
 
diff --git a/arch/mips/include/asm/sgi/pi1.h b/arch/mips/include/asm/sgi/pi1.h
index 96b1a0771ec3..88b814ef3f18 100644
--- a/arch/mips/include/asm/sgi/pi1.h
+++ b/arch/mips/include/asm/sgi/pi1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * pi1.h: Definitions for SGI PI1 parallel port
  */
diff --git a/arch/mips/include/asm/smp-cps.h b/arch/mips/include/asm/smp-cps.h
index 2ae1f61a4a95..16b4ee3feb98 100644
--- a/arch/mips/include/asm/smp-cps.h
+++ b/arch/mips/include/asm/smp-cps.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/asm/smp-ops.h b/arch/mips/include/asm/smp-ops.h
index db7c322f057f..53b2cb8e5966 100644
--- a/arch/mips/include/asm/smp-ops.h
+++ b/arch/mips/include/asm/smp-ops.h
@@ -13,7 +13,7 @@
 
 #include <linux/errno.h>
 
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 
 #ifdef CONFIG_SMP
 
@@ -26,7 +26,7 @@ struct plat_smp_ops {
 	void (*send_ipi_mask)(const struct cpumask *mask, unsigned int action);
 	void (*init_secondary)(void);
 	void (*smp_finish)(void);
-	void (*boot_secondary)(int cpu, struct task_struct *idle);
+	int (*boot_secondary)(int cpu, struct task_struct *idle);
 	void (*smp_setup)(void);
 	void (*prepare_cpus)(unsigned int max_cpus);
 #ifdef CONFIG_HOTPLUG_CPU
@@ -35,11 +35,11 @@ struct plat_smp_ops {
 #endif
 };
 
-extern void register_smp_ops(struct plat_smp_ops *ops);
+extern void register_smp_ops(const struct plat_smp_ops *ops);
 
 static inline void plat_smp_setup(void)
 {
-	extern struct plat_smp_ops *mp_ops;	/* private */
+	extern const struct plat_smp_ops *mp_ops;	/* private */
 
 	mp_ops->smp_setup();
 }
@@ -57,7 +57,7 @@ static inline void plat_smp_setup(void)
 	/* UP, nothing to do ...  */
 }
 
-static inline void register_smp_ops(struct plat_smp_ops *ops)
+static inline void register_smp_ops(const struct plat_smp_ops *ops)
 {
 }
 
@@ -66,7 +66,7 @@ static inline void register_smp_ops(struct plat_smp_ops *ops)
 static inline int register_up_smp_ops(void)
 {
 #ifdef CONFIG_SMP_UP
-	extern struct plat_smp_ops up_smp_ops;
+	extern const struct plat_smp_ops up_smp_ops;
 
 	register_smp_ops(&up_smp_ops);
 
@@ -79,7 +79,7 @@ static inline int register_up_smp_ops(void)
 static inline int register_cmp_smp_ops(void)
 {
 #ifdef CONFIG_MIPS_CMP
-	extern struct plat_smp_ops cmp_smp_ops;
+	extern const struct plat_smp_ops cmp_smp_ops;
 
 	if (!mips_cm_present())
 		return -ENODEV;
@@ -95,7 +95,7 @@ static inline int register_cmp_smp_ops(void)
 static inline int register_vsmp_smp_ops(void)
 {
 #ifdef CONFIG_MIPS_MT_SMP
-	extern struct plat_smp_ops vsmp_smp_ops;
+	extern const struct plat_smp_ops vsmp_smp_ops;
 
 	register_smp_ops(&vsmp_smp_ops);
 
diff --git a/arch/mips/include/asm/smp.h b/arch/mips/include/asm/smp.h
index bab3d41e5987..9e494f8d9c03 100644
--- a/arch/mips/include/asm/smp.h
+++ b/arch/mips/include/asm/smp.h
@@ -58,7 +58,7 @@ extern void calculate_cpu_foreign_map(void);
  */
 static inline void smp_send_reschedule(int cpu)
 {
-	extern struct plat_smp_ops *mp_ops;	/* private */
+	extern const struct plat_smp_ops *mp_ops;	/* private */
 
 	mp_ops->send_ipi_single(cpu, SMP_RESCHEDULE_YOURSELF);
 }
@@ -66,14 +66,14 @@ static inline void smp_send_reschedule(int cpu)
 #ifdef CONFIG_HOTPLUG_CPU
 static inline int __cpu_disable(void)
 {
-	extern struct plat_smp_ops *mp_ops;	/* private */
+	extern const struct plat_smp_ops *mp_ops;	/* private */
 
 	return mp_ops->cpu_disable();
 }
 
 static inline void __cpu_die(unsigned int cpu)
 {
-	extern struct plat_smp_ops *mp_ops;	/* private */
+	extern const struct plat_smp_ops *mp_ops;	/* private */
 
 	mp_ops->cpu_die(cpu);
 }
@@ -97,14 +97,14 @@ int mips_smp_ipi_free(const struct cpumask *mask);
 
 static inline void arch_send_call_function_single_ipi(int cpu)
 {
-	extern struct plat_smp_ops *mp_ops;	/* private */
+	extern const struct plat_smp_ops *mp_ops;	/* private */
 
 	mp_ops->send_ipi_mask(cpumask_of(cpu), SMP_CALL_FUNCTION);
 }
 
 static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
 {
-	extern struct plat_smp_ops *mp_ops;	/* private */
+	extern const struct plat_smp_ops *mp_ops;	/* private */
 
 	mp_ops->send_ipi_mask(mask, SMP_CALL_FUNCTION);
 }
diff --git a/arch/mips/include/asm/sn/hub.h b/arch/mips/include/asm/sn/hub.h
index 1992d9254a08..338f7eed74f1 100644
--- a/arch/mips/include/asm/sn/hub.h
+++ b/arch/mips/include/asm/sn/hub.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SN_HUB_H
 #define __ASM_SN_HUB_H
 
diff --git a/arch/mips/include/asm/sn/ioc3.h b/arch/mips/include/asm/sn/ioc3.h
index feb385180f87..25c8dccab51f 100644
--- a/arch/mips/include/asm/sn/ioc3.h
+++ b/arch/mips/include/asm/sn/ioc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999, 2000 Ralf Baechle
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
diff --git a/arch/mips/include/asm/sn/klkernvars.h b/arch/mips/include/asm/sn/klkernvars.h
index 6af25ba41ade..ea6b21795163 100644
--- a/arch/mips/include/asm/sn/klkernvars.h
+++ b/arch/mips/include/asm/sn/klkernvars.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File ported from IRIX to Linux by Kanoj Sarcar, 06/08/00.
  * Copyright 2000 Silicon Graphics, Inc.
diff --git a/arch/mips/include/asm/sn/mapped_kernel.h b/arch/mips/include/asm/sn/mapped_kernel.h
index 401f3b0eee17..2f3efa91c16e 100644
--- a/arch/mips/include/asm/sn/mapped_kernel.h
+++ b/arch/mips/include/asm/sn/mapped_kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File created by Kanoj Sarcar 06/06/00.
  * Copyright 2000 Silicon Graphics, Inc.
diff --git a/arch/mips/include/asm/sn/sn_private.h b/arch/mips/include/asm/sn/sn_private.h
index fdfae43d8b99..f09ba846c644 100644
--- a/arch/mips/include/asm/sn/sn_private.h
+++ b/arch/mips/include/asm/sn/sn_private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SN_SN_PRIVATE_H
 #define __ASM_SN_SN_PRIVATE_H
 
diff --git a/arch/mips/include/asm/sparsemem.h b/arch/mips/include/asm/sparsemem.h
index b1071c1e54f5..b0686ca3d8bf 100644
--- a/arch/mips/include/asm/sparsemem.h
+++ b/arch/mips/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MIPS_SPARSEMEM_H
 #define _MIPS_SPARSEMEM_H
 #ifdef CONFIG_SPARSEMEM
diff --git a/arch/mips/include/asm/spinlock.h b/arch/mips/include/asm/spinlock.h
index a7d21da16b6a..ee81297d9117 100644
--- a/arch/mips/include/asm/spinlock.h
+++ b/arch/mips/include/asm/spinlock.h
@@ -13,11 +13,4 @@
 #include <asm/qrwlock.h>
 #include <asm/qspinlock.h>
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* _ASM_SPINLOCK_H */
diff --git a/arch/mips/include/asm/spinlock_types.h b/arch/mips/include/asm/spinlock_types.h
index 177e722eb96c..28fd4b140bea 100644
--- a/arch/mips/include/asm/spinlock_types.h
+++ b/arch/mips/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPINLOCK_TYPES_H
 #define _ASM_SPINLOCK_TYPES_H
 
diff --git a/arch/mips/include/asm/spram.h b/arch/mips/include/asm/spram.h
index 0f90d88e464d..63cb90fd4148 100644
--- a/arch/mips/include/asm/spram.h
+++ b/arch/mips/include/asm/spram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MIPS_SPRAM_H
 #define _MIPS_SPRAM_H
 
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index eaa5a4d7d5e5..2161357cc68f 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -19,20 +19,43 @@
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 
+/* Make the addition of cfi info a little easier. */
+	.macro cfi_rel_offset reg offset=0 docfi=0
+	.if \docfi
+	.cfi_rel_offset \reg, \offset
+	.endif
+	.endm
+
+	.macro cfi_st reg offset=0 docfi=0
+	LONG_S	\reg, \offset(sp)
+	cfi_rel_offset \reg, \offset, \docfi
+	.endm
+
+	.macro cfi_restore reg offset=0 docfi=0
+	.if \docfi
+	.cfi_restore \reg
+	.endif
+	.endm
+
+	.macro cfi_ld reg offset=0 docfi=0
+	LONG_L	\reg, \offset(sp)
+	cfi_restore \reg \offset \docfi
+	.endm
+
 #if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
 #define STATMASK 0x3f
 #else
 #define STATMASK 0x1f
 #endif
 
-		.macro	SAVE_AT
+		.macro	SAVE_AT docfi=0
 		.set	push
 		.set	noat
-		LONG_S	$1, PT_R1(sp)
+		cfi_st	$1, PT_R1, \docfi
 		.set	pop
 		.endm
 
-		.macro	SAVE_TEMP
+		.macro	SAVE_TEMP docfi=0
 #ifdef CONFIG_CPU_HAS_SMARTMIPS
 		mflhxu	v1
 		LONG_S	v1, PT_LO(sp)
@@ -44,20 +67,20 @@
 		mfhi	v1
 #endif
 #ifdef CONFIG_32BIT
-		LONG_S	$8, PT_R8(sp)
-		LONG_S	$9, PT_R9(sp)
+		cfi_st	$8, PT_R8, \docfi
+		cfi_st	$9, PT_R9, \docfi
 #endif
-		LONG_S	$10, PT_R10(sp)
-		LONG_S	$11, PT_R11(sp)
-		LONG_S	$12, PT_R12(sp)
+		cfi_st	$10, PT_R10, \docfi
+		cfi_st	$11, PT_R11, \docfi
+		cfi_st	$12, PT_R12, \docfi
 #if !defined(CONFIG_CPU_HAS_SMARTMIPS) && !defined(CONFIG_CPU_MIPSR6)
 		LONG_S	v1, PT_HI(sp)
 		mflo	v1
 #endif
-		LONG_S	$13, PT_R13(sp)
-		LONG_S	$14, PT_R14(sp)
-		LONG_S	$15, PT_R15(sp)
-		LONG_S	$24, PT_R24(sp)
+		cfi_st	$13, PT_R13, \docfi
+		cfi_st	$14, PT_R14, \docfi
+		cfi_st	$15, PT_R15, \docfi
+		cfi_st	$24, PT_R24, \docfi
 #if !defined(CONFIG_CPU_HAS_SMARTMIPS) && !defined(CONFIG_CPU_MIPSR6)
 		LONG_S	v1, PT_LO(sp)
 #endif
@@ -71,20 +94,28 @@
 #endif
 		.endm
 
-		.macro	SAVE_STATIC
-		LONG_S	$16, PT_R16(sp)
-		LONG_S	$17, PT_R17(sp)
-		LONG_S	$18, PT_R18(sp)
-		LONG_S	$19, PT_R19(sp)
-		LONG_S	$20, PT_R20(sp)
-		LONG_S	$21, PT_R21(sp)
-		LONG_S	$22, PT_R22(sp)
-		LONG_S	$23, PT_R23(sp)
-		LONG_S	$30, PT_R30(sp)
+		.macro	SAVE_STATIC docfi=0
+		cfi_st	$16, PT_R16, \docfi
+		cfi_st	$17, PT_R17, \docfi
+		cfi_st	$18, PT_R18, \docfi
+		cfi_st	$19, PT_R19, \docfi
+		cfi_st	$20, PT_R20, \docfi
+		cfi_st	$21, PT_R21, \docfi
+		cfi_st	$22, PT_R22, \docfi
+		cfi_st	$23, PT_R23, \docfi
+		cfi_st	$30, PT_R30, \docfi
 		.endm
 
+/*
+ * get_saved_sp returns the SP for the current CPU by looking in the
+ * kernelsp array for it.  If tosp is set, it stores the current sp in
+ * k0 and loads the new value in sp.  If not, it clobbers k0 and
+ * stores the new value in k1, leaving sp unaffected.
+ */
 #ifdef CONFIG_SMP
-		.macro	get_saved_sp	/* SMP variation */
+
+		/* SMP variation */
+		.macro	get_saved_sp docfi=0 tosp=0
 		ASM_CPUID_MFC0	k0, ASM_SMP_CPUID_REG
 #if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		lui	k1, %hi(kernelsp)
@@ -97,7 +128,15 @@
 #endif
 		LONG_SRL	k0, SMP_CPUID_PTRSHIFT
 		LONG_ADDU	k1, k0
+		.if \tosp
+		move	k0, sp
+		.if \docfi
+		.cfi_register sp, k0
+		.endif
+		LONG_L	sp, %lo(kernelsp)(k1)
+		.else
 		LONG_L	k1, %lo(kernelsp)(k1)
+		.endif
 		.endm
 
 		.macro	set_saved_sp stackp temp temp2
@@ -106,7 +145,8 @@
 		LONG_S	\stackp, kernelsp(\temp)
 		.endm
 #else /* !CONFIG_SMP */
-		.macro	get_saved_sp	/* Uniprocessor variation */
+		/* Uniprocessor variation */
+		.macro	get_saved_sp docfi=0 tosp=0
 #ifdef CONFIG_CPU_JUMP_WORKAROUNDS
 		/*
 		 * Clear BTB (branch target buffer), forbid RAS (return address
@@ -135,7 +175,15 @@
 		daddiu	k1, %hi(kernelsp)
 		dsll	k1, k1, 16
 #endif
+		.if \tosp
+		move	k0, sp
+		.if \docfi
+		.cfi_register sp, k0
+		.endif
+		LONG_L	sp, %lo(kernelsp)(k1)
+		.else
 		LONG_L	k1, %lo(kernelsp)(k1)
+		.endif
 		.endm
 
 		.macro	set_saved_sp stackp temp temp2
@@ -143,7 +191,7 @@
 		.endm
 #endif
 
-		.macro	SAVE_SOME
+		.macro	SAVE_SOME docfi=0
 		.set	push
 		.set	noat
 		.set	reorder
@@ -151,7 +199,10 @@
 		sll	k0, 3		/* extract cu0 bit */
 		.set	noreorder
 		bltz	k0, 8f
-		 move	k1, sp
+		 move	k0, sp
+		.if \docfi
+		.cfi_register sp, k0
+		.endif
 #ifdef CONFIG_EVA
 		/*
 		 * Flush interAptiv's Return Prediction Stack (RPS) by writing
@@ -179,19 +230,21 @@
 #endif
 		.set	reorder
 		/* Called from user mode, new stack. */
-		get_saved_sp
-#ifndef CONFIG_CPU_DADDI_WORKAROUNDS
-8:		move	k0, sp
-		PTR_SUBU sp, k1, PT_SIZE
-#else
-		.set	at=k0
-8:		PTR_SUBU k1, PT_SIZE
+		get_saved_sp docfi=\docfi tosp=1
+8:
+#ifdef CONFIG_CPU_DADDI_WORKAROUNDS
+		.set	at=k1
+#endif
+		PTR_SUBU sp, PT_SIZE
+#ifdef CONFIG_CPU_DADDI_WORKAROUNDS
 		.set	noat
-		move	k0, sp
-		move	sp, k1
 #endif
-		LONG_S	k0, PT_R29(sp)
-		LONG_S	$3, PT_R3(sp)
+		.if \docfi
+		.cfi_def_cfa sp,0
+		.endif
+		cfi_st	k0, PT_R29, \docfi
+		cfi_rel_offset  sp, PT_R29, \docfi
+		cfi_st	v1, PT_R3, \docfi
 		/*
 		 * You might think that you don't need to save $0,
 		 * but the FPU emulator and gdb remote debug stub
@@ -199,23 +252,26 @@
 		 */
 		LONG_S	$0, PT_R0(sp)
 		mfc0	v1, CP0_STATUS
-		LONG_S	$2, PT_R2(sp)
+		cfi_st	v0, PT_R2, \docfi
 		LONG_S	v1, PT_STATUS(sp)
-		LONG_S	$4, PT_R4(sp)
+		cfi_st	$4, PT_R4, \docfi
 		mfc0	v1, CP0_CAUSE
-		LONG_S	$5, PT_R5(sp)
+		cfi_st	$5, PT_R5, \docfi
 		LONG_S	v1, PT_CAUSE(sp)
-		LONG_S	$6, PT_R6(sp)
-		MFC0	v1, CP0_EPC
-		LONG_S	$7, PT_R7(sp)
+		cfi_st	$6, PT_R6, \docfi
+		cfi_st	ra, PT_R31, \docfi
+		MFC0	ra, CP0_EPC
+		cfi_st	$7, PT_R7, \docfi
 #ifdef CONFIG_64BIT
-		LONG_S	$8, PT_R8(sp)
-		LONG_S	$9, PT_R9(sp)
+		cfi_st	$8, PT_R8, \docfi
+		cfi_st	$9, PT_R9, \docfi
 #endif
-		LONG_S	v1, PT_EPC(sp)
-		LONG_S	$25, PT_R25(sp)
-		LONG_S	$28, PT_R28(sp)
-		LONG_S	$31, PT_R31(sp)
+		LONG_S	ra, PT_EPC(sp)
+		.if \docfi
+		.cfi_rel_offset ra, PT_EPC
+		.endif
+		cfi_st	$25, PT_R25, \docfi
+		cfi_st	$28, PT_R28, \docfi
 
 		/* Set thread_info if we're coming from user mode */
 		mfc0	k0, CP0_STATUS
@@ -232,21 +288,21 @@
 		.set	pop
 		.endm
 
-		.macro	SAVE_ALL
-		SAVE_SOME
-		SAVE_AT
-		SAVE_TEMP
-		SAVE_STATIC
+		.macro	SAVE_ALL docfi=0
+		SAVE_SOME \docfi
+		SAVE_AT \docfi
+		SAVE_TEMP \docfi
+		SAVE_STATIC \docfi
 		.endm
 
-		.macro	RESTORE_AT
+		.macro	RESTORE_AT docfi=0
 		.set	push
 		.set	noat
-		LONG_L	$1,  PT_R1(sp)
+		cfi_ld	$1, PT_R1, \docfi
 		.set	pop
 		.endm
 
-		.macro	RESTORE_TEMP
+		.macro	RESTORE_TEMP docfi=0
 #ifdef CONFIG_CPU_CAVIUM_OCTEON
 		/* Restore the Octeon multiplier state */
 		jal	octeon_mult_restore
@@ -265,33 +321,37 @@
 		mthi	$24
 #endif
 #ifdef CONFIG_32BIT
-		LONG_L	$8, PT_R8(sp)
-		LONG_L	$9, PT_R9(sp)
+		cfi_ld	$8, PT_R8, \docfi
+		cfi_ld	$9, PT_R9, \docfi
 #endif
-		LONG_L	$10, PT_R10(sp)
-		LONG_L	$11, PT_R11(sp)
-		LONG_L	$12, PT_R12(sp)
-		LONG_L	$13, PT_R13(sp)
-		LONG_L	$14, PT_R14(sp)
-		LONG_L	$15, PT_R15(sp)
-		LONG_L	$24, PT_R24(sp)
+		cfi_ld	$10, PT_R10, \docfi
+		cfi_ld	$11, PT_R11, \docfi
+		cfi_ld	$12, PT_R12, \docfi
+		cfi_ld	$13, PT_R13, \docfi
+		cfi_ld	$14, PT_R14, \docfi
+		cfi_ld	$15, PT_R15, \docfi
+		cfi_ld	$24, PT_R24, \docfi
 		.endm
 
-		.macro	RESTORE_STATIC
-		LONG_L	$16, PT_R16(sp)
-		LONG_L	$17, PT_R17(sp)
-		LONG_L	$18, PT_R18(sp)
-		LONG_L	$19, PT_R19(sp)
-		LONG_L	$20, PT_R20(sp)
-		LONG_L	$21, PT_R21(sp)
-		LONG_L	$22, PT_R22(sp)
-		LONG_L	$23, PT_R23(sp)
-		LONG_L	$30, PT_R30(sp)
+		.macro	RESTORE_STATIC docfi=0
+		cfi_ld	$16, PT_R16, \docfi
+		cfi_ld	$17, PT_R17, \docfi
+		cfi_ld	$18, PT_R18, \docfi
+		cfi_ld	$19, PT_R19, \docfi
+		cfi_ld	$20, PT_R20, \docfi
+		cfi_ld	$21, PT_R21, \docfi
+		cfi_ld	$22, PT_R22, \docfi
+		cfi_ld	$23, PT_R23, \docfi
+		cfi_ld	$30, PT_R30, \docfi
+		.endm
+
+		.macro	RESTORE_SP docfi=0
+		cfi_ld	sp, PT_R29, \docfi
 		.endm
 
 #if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
 
-		.macro	RESTORE_SOME
+		.macro	RESTORE_SOME docfi=0
 		.set	push
 		.set	reorder
 		.set	noat
@@ -306,30 +366,30 @@
 		and	v0, v1
 		or	v0, a0
 		mtc0	v0, CP0_STATUS
-		LONG_L	$31, PT_R31(sp)
-		LONG_L	$28, PT_R28(sp)
-		LONG_L	$25, PT_R25(sp)
-		LONG_L	$7,  PT_R7(sp)
-		LONG_L	$6,  PT_R6(sp)
-		LONG_L	$5,  PT_R5(sp)
-		LONG_L	$4,  PT_R4(sp)
-		LONG_L	$3,  PT_R3(sp)
-		LONG_L	$2,  PT_R2(sp)
+		cfi_ld	$31, PT_R31, \docfi
+		cfi_ld	$28, PT_R28, \docfi
+		cfi_ld	$25, PT_R25, \docfi
+		cfi_ld	$7,  PT_R7, \docfi
+		cfi_ld	$6,  PT_R6, \docfi
+		cfi_ld	$5,  PT_R5, \docfi
+		cfi_ld	$4,  PT_R4, \docfi
+		cfi_ld	$3,  PT_R3, \docfi
+		cfi_ld	$2,  PT_R2, \docfi
 		.set	pop
 		.endm
 
-		.macro	RESTORE_SP_AND_RET
+		.macro	RESTORE_SP_AND_RET docfi=0
 		.set	push
 		.set	noreorder
 		LONG_L	k0, PT_EPC(sp)
-		LONG_L	sp, PT_R29(sp)
+		RESTORE_SP \docfi
 		jr	k0
 		 rfe
 		.set	pop
 		.endm
 
 #else
-		.macro	RESTORE_SOME
+		.macro	RESTORE_SOME docfi=0
 		.set	push
 		.set	reorder
 		.set	noat
@@ -346,24 +406,24 @@
 		mtc0	v0, CP0_STATUS
 		LONG_L	v1, PT_EPC(sp)
 		MTC0	v1, CP0_EPC
-		LONG_L	$31, PT_R31(sp)
-		LONG_L	$28, PT_R28(sp)
-		LONG_L	$25, PT_R25(sp)
+		cfi_ld	$31, PT_R31, \docfi
+		cfi_ld	$28, PT_R28, \docfi
+		cfi_ld	$25, PT_R25, \docfi
 #ifdef CONFIG_64BIT
-		LONG_L	$8, PT_R8(sp)
-		LONG_L	$9, PT_R9(sp)
+		cfi_ld	$8, PT_R8, \docfi
+		cfi_ld	$9, PT_R9, \docfi
 #endif
-		LONG_L	$7,  PT_R7(sp)
-		LONG_L	$6,  PT_R6(sp)
-		LONG_L	$5,  PT_R5(sp)
-		LONG_L	$4,  PT_R4(sp)
-		LONG_L	$3,  PT_R3(sp)
-		LONG_L	$2,  PT_R2(sp)
+		cfi_ld	$7,  PT_R7, \docfi
+		cfi_ld	$6,  PT_R6, \docfi
+		cfi_ld	$5,  PT_R5, \docfi
+		cfi_ld	$4,  PT_R4, \docfi
+		cfi_ld	$3,  PT_R3, \docfi
+		cfi_ld	$2,  PT_R2, \docfi
 		.set	pop
 		.endm
 
-		.macro	RESTORE_SP_AND_RET
-		LONG_L	sp, PT_R29(sp)
+		.macro	RESTORE_SP_AND_RET docfi=0
+		RESTORE_SP \docfi
 #ifdef CONFIG_CPU_MIPSR6
 		eretnc
 #else
@@ -375,16 +435,12 @@
 
 #endif
 
-		.macro	RESTORE_SP
-		LONG_L	sp, PT_R29(sp)
-		.endm
-
-		.macro	RESTORE_ALL
-		RESTORE_TEMP
-		RESTORE_STATIC
-		RESTORE_AT
-		RESTORE_SOME
-		RESTORE_SP
+		.macro	RESTORE_ALL docfi=0
+		RESTORE_TEMP \docfi
+		RESTORE_STATIC \docfi
+		RESTORE_AT \docfi
+		RESTORE_SOME \docfi
+		RESTORE_SP \docfi
 		.endm
 
 /*
diff --git a/arch/mips/include/asm/stackprotector.h b/arch/mips/include/asm/stackprotector.h
index eb9b1035e926..68d4be9e1254 100644
--- a/arch/mips/include/asm/stackprotector.h
+++ b/arch/mips/include/asm/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * GCC stack protector support.
  *
diff --git a/arch/mips/include/asm/stacktrace.h b/arch/mips/include/asm/stacktrace.h
index 780ee2c2a2ac..8ad25c25b4f8 100644
--- a/arch/mips/include/asm/stacktrace.h
+++ b/arch/mips/include/asm/stacktrace.h
@@ -1,7 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_STACKTRACE_H
 #define _ASM_STACKTRACE_H
 
 #include <asm/ptrace.h>
+#include <asm/asm.h>
+#include <linux/stringify.h>
 
 #ifdef CONFIG_KALLSYMS
 extern int raw_show_trace;
@@ -20,6 +23,14 @@ static inline unsigned long unwind_stack(struct task_struct *task,
 }
 #endif
 
+#define STR_PTR_LA    __stringify(PTR_LA)
+#define STR_LONG_S    __stringify(LONG_S)
+#define STR_LONG_L    __stringify(LONG_L)
+#define STR_LONGSIZE  __stringify(LONGSIZE)
+
+#define STORE_ONE_REG(r) \
+    STR_LONG_S   " $" __stringify(r)",("STR_LONGSIZE"*"__stringify(r)")(%1)\n\t"
+
 static __always_inline void prepare_frametrace(struct pt_regs *regs)
 {
 #ifndef CONFIG_KALLSYMS
@@ -32,21 +43,47 @@ static __always_inline void prepare_frametrace(struct pt_regs *regs)
 	__asm__ __volatile__(
 		".set push\n\t"
 		".set noat\n\t"
-#ifdef CONFIG_64BIT
-		"1: dla $1, 1b\n\t"
-		"sd $1, %0\n\t"
-		"sd $29, %1\n\t"
-		"sd $31, %2\n\t"
-#else
-		"1: la $1, 1b\n\t"
-		"sw $1, %0\n\t"
-		"sw $29, %1\n\t"
-		"sw $31, %2\n\t"
-#endif
+		/* Store $1 so we can use it */
+		STR_LONG_S " $1,"STR_LONGSIZE"(%1)\n\t"
+		/* Store the PC */
+		"1: " STR_PTR_LA " $1, 1b\n\t"
+		STR_LONG_S " $1,%0\n\t"
+		STORE_ONE_REG(2)
+		STORE_ONE_REG(3)
+		STORE_ONE_REG(4)
+		STORE_ONE_REG(5)
+		STORE_ONE_REG(6)
+		STORE_ONE_REG(7)
+		STORE_ONE_REG(8)
+		STORE_ONE_REG(9)
+		STORE_ONE_REG(10)
+		STORE_ONE_REG(11)
+		STORE_ONE_REG(12)
+		STORE_ONE_REG(13)
+		STORE_ONE_REG(14)
+		STORE_ONE_REG(15)
+		STORE_ONE_REG(16)
+		STORE_ONE_REG(17)
+		STORE_ONE_REG(18)
+		STORE_ONE_REG(19)
+		STORE_ONE_REG(20)
+		STORE_ONE_REG(21)
+		STORE_ONE_REG(22)
+		STORE_ONE_REG(23)
+		STORE_ONE_REG(24)
+		STORE_ONE_REG(25)
+		STORE_ONE_REG(26)
+		STORE_ONE_REG(27)
+		STORE_ONE_REG(28)
+		STORE_ONE_REG(29)
+		STORE_ONE_REG(30)
+		STORE_ONE_REG(31)
+		/* Restore $1 */
+		STR_LONG_L " $1,"STR_LONGSIZE"(%1)\n\t"
 		".set pop\n\t"
-		: "=m" (regs->cp0_epc),
-		"=m" (regs->regs[29]), "=m" (regs->regs[31])
-		: : "memory");
+		: "=m" (regs->cp0_epc)
+		: "r" (regs->regs)
+		: "memory");
 }
 
 #endif /* _ASM_STACKTRACE_H */
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index b439e512792b..5e8927f99a76 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: MIPS low-level thread information
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
diff --git a/arch/mips/include/asm/tlb.h b/arch/mips/include/asm/tlb.h
index 939734de4359..b6823b9e94da 100644
--- a/arch/mips/include/asm/tlb.h
+++ b/arch/mips/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TLB_H
 #define __ASM_TLB_H
 
diff --git a/arch/mips/include/asm/tlbex.h b/arch/mips/include/asm/tlbex.h
index 53050e9dd2c9..4ed7ebed3bf1 100644
--- a/arch/mips/include/asm/tlbex.h
+++ b/arch/mips/include/asm/tlbex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TLBEX_H
 #define __ASM_TLBEX_H
 
diff --git a/arch/mips/include/asm/tlbflush.h b/arch/mips/include/asm/tlbflush.h
index 86b21de12e91..40a361092491 100644
--- a/arch/mips/include/asm/tlbflush.h
+++ b/arch/mips/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TLBFLUSH_H
 #define __ASM_TLBFLUSH_H
 
diff --git a/arch/mips/include/asm/tlbmisc.h b/arch/mips/include/asm/tlbmisc.h
index 3a452282cba0..c1a540669c23 100644
--- a/arch/mips/include/asm/tlbmisc.h
+++ b/arch/mips/include/asm/tlbmisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TLBMISC_H
 #define __ASM_TLBMISC_H
 
diff --git a/arch/mips/include/asm/topology.h b/arch/mips/include/asm/topology.h
index 7afda4150a59..0673d2d0f2e6 100644
--- a/arch/mips/include/asm/topology.h
+++ b/arch/mips/include/asm/topology.h
@@ -13,7 +13,7 @@
 
 #ifdef CONFIG_SMP
 #define topology_physical_package_id(cpu)	(cpu_data[cpu].package)
-#define topology_core_id(cpu)			(cpu_data[cpu].core)
+#define topology_core_id(cpu)			(cpu_core(&cpu_data[cpu]))
 #define topology_core_cpumask(cpu)		(&cpu_core_map[cpu])
 #define topology_sibling_cpumask(cpu)		(&cpu_sibling_map[cpu])
 #endif
diff --git a/arch/mips/include/asm/txx9/boards.h b/arch/mips/include/asm/txx9/boards.h
index cbe9476d963e..d45237befd3e 100644
--- a/arch/mips/include/asm/txx9/boards.h
+++ b/arch/mips/include/asm/txx9/boards.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_TOSHIBA_JMR3927
 BOARD_VEC(jmr3927_vec)
 #endif
diff --git a/arch/mips/include/asm/vdso.h b/arch/mips/include/asm/vdso.h
index b7cd6cf77b83..91bf0c2c265c 100644
--- a/arch/mips/include/asm/vdso.h
+++ b/arch/mips/include/asm/vdso.h
@@ -99,7 +99,7 @@ static inline u32 vdso_data_read_begin(const union mips_vdso_data *data)
 	u32 seq;
 
 	while (true) {
-		seq = ACCESS_ONCE(data->seq_count);
+		seq = READ_ONCE(data->seq_count);
 		if (likely(!(seq & 1))) {
 			/* Paired with smp_wmb() in vdso_data_write_*(). */
 			smp_rmb();
diff --git a/arch/mips/include/asm/vga.h b/arch/mips/include/asm/vga.h
index 975ff51f80c4..0136e0366698 100644
--- a/arch/mips/include/asm/vga.h
+++ b/arch/mips/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/arch/mips/include/asm/yamon-dt.h b/arch/mips/include/asm/yamon-dt.h
index 485cfe3e45e1..10a073e6877a 100644
--- a/arch/mips/include/asm/yamon-dt.h
+++ b/arch/mips/include/asm/yamon-dt.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/include/uapi/asm/auxvec.h b/arch/mips/include/uapi/asm/auxvec.h
index 45ba259a3618..612c2c41f60b 100644
--- a/arch/mips/include/uapi/asm/auxvec.h
+++ b/arch/mips/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2015 Imagination Technologies
  * Author: Alex Smith <alex.smith@imgtec.com>
diff --git a/arch/mips/include/uapi/asm/bitfield.h b/arch/mips/include/uapi/asm/bitfield.h
index ad9861359cea..b11713d8743e 100644
--- a/arch/mips/include/uapi/asm/bitfield.h
+++ b/arch/mips/include/uapi/asm/bitfield.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/bitsperlong.h b/arch/mips/include/uapi/asm/bitsperlong.h
index 3e4c10a8e787..7268380d8d28 100644
--- a/arch/mips/include/uapi/asm/bitsperlong.h
+++ b/arch/mips/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_MIPS_BITSPERLONG_H
 #define __ASM_MIPS_BITSPERLONG_H
 
diff --git a/arch/mips/include/uapi/asm/break.h b/arch/mips/include/uapi/asm/break.h
index 9c4265cbf151..10380b1bc601 100644
--- a/arch/mips/include/uapi/asm/break.h
+++ b/arch/mips/include/uapi/asm/break.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/byteorder.h b/arch/mips/include/uapi/asm/byteorder.h
index 9579051ff1c7..b4edc85f9c30 100644
--- a/arch/mips/include/uapi/asm/byteorder.h
+++ b/arch/mips/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/cachectl.h b/arch/mips/include/uapi/asm/cachectl.h
index 230390908773..af7639ff423b 100644
--- a/arch/mips/include/uapi/asm/cachectl.h
+++ b/arch/mips/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/errno.h b/arch/mips/include/uapi/asm/errno.h
index 02d645d7aa9a..2fb714e2d6d8 100644
--- a/arch/mips/include/uapi/asm/errno.h
+++ b/arch/mips/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/fcntl.h b/arch/mips/include/uapi/asm/fcntl.h
index 6ca432f00860..42e13dead543 100644
--- a/arch/mips/include/uapi/asm/fcntl.h
+++ b/arch/mips/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/hwcap.h b/arch/mips/include/uapi/asm/hwcap.h
index c7484a7ca686..600ad8fd6835 100644
--- a/arch/mips/include/uapi/asm/hwcap.h
+++ b/arch/mips/include/uapi/asm/hwcap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_HWCAP_H
 #define _UAPI_ASM_HWCAP_H
 
diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index d61897535926..c05dcf5ab414 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Format of an instruction in memory.
  *
@@ -981,7 +982,7 @@ struct mm16_r3_format {		/* Load from global pointer format */
 struct mm16_r5_format {		/* Load/store from stack pointer format */
 	__BITFIELD_FIELD(unsigned int opcode : 6,
 	__BITFIELD_FIELD(unsigned int rt : 5,
-	__BITFIELD_FIELD(signed int simmediate : 5,
+	__BITFIELD_FIELD(unsigned int imm : 5,
 	__BITFIELD_FIELD(unsigned int : 16, /* Ignored */
 	;))))
 };
diff --git a/arch/mips/include/uapi/asm/ioctl.h b/arch/mips/include/uapi/asm/ioctl.h
index c515a1a4c47c..1050a6ea211c 100644
--- a/arch/mips/include/uapi/asm/ioctl.h
+++ b/arch/mips/include/uapi/asm/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 1609cb0907ac..890245a9f0c4 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/kvm.h b/arch/mips/include/uapi/asm/kvm.h
index 0318c6b442ab..edcf717c4327 100644
--- a/arch/mips/include/uapi/asm/kvm.h
+++ b/arch/mips/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h
index da3216007fe0..20c3df7a8fdd 100644
--- a/arch/mips/include/uapi/asm/mman.h
+++ b/arch/mips/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/msgbuf.h b/arch/mips/include/uapi/asm/msgbuf.h
index df849e87d9ae..eb4d0f9d7364 100644
--- a/arch/mips/include/uapi/asm/msgbuf.h
+++ b/arch/mips/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_MSGBUF_H
 #define _ASM_MSGBUF_H
 
diff --git a/arch/mips/include/uapi/asm/param.h b/arch/mips/include/uapi/asm/param.h
index da3920fce9ad..3f337ed66f6a 100644
--- a/arch/mips/include/uapi/asm/param.h
+++ b/arch/mips/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/poll.h b/arch/mips/include/uapi/asm/poll.h
index 47b952080431..ad289d7b7434 100644
--- a/arch/mips/include/uapi/asm/poll.h
+++ b/arch/mips/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_POLL_H
 #define __ASM_POLL_H
 
diff --git a/arch/mips/include/uapi/asm/posix_types.h b/arch/mips/include/uapi/asm/posix_types.h
index fa03ec3fbf89..6aa49c10f88f 100644
--- a/arch/mips/include/uapi/asm/posix_types.h
+++ b/arch/mips/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/ptrace.h b/arch/mips/include/uapi/asm/ptrace.h
index 91a3d197ede3..f3c025445e45 100644
--- a/arch/mips/include/uapi/asm/ptrace.h
+++ b/arch/mips/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/reg.h b/arch/mips/include/uapi/asm/reg.h
index 081e377f4f02..56d15cb8109f 100644
--- a/arch/mips/include/uapi/asm/reg.h
+++ b/arch/mips/include/uapi/asm/reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Various register offset definitions for debuggers, core file
  * examiners and whatnot.
diff --git a/arch/mips/include/uapi/asm/resource.h b/arch/mips/include/uapi/asm/resource.h
index b26439d4ab0b..372ff8f4bc06 100644
--- a/arch/mips/include/uapi/asm/resource.h
+++ b/arch/mips/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/sembuf.h b/arch/mips/include/uapi/asm/sembuf.h
index e1085ac880f2..2c0f507ab7d1 100644
--- a/arch/mips/include/uapi/asm/sembuf.h
+++ b/arch/mips/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
diff --git a/arch/mips/include/uapi/asm/setup.h b/arch/mips/include/uapi/asm/setup.h
index 93f237bb1353..7d48c433b0c2 100644
--- a/arch/mips/include/uapi/asm/setup.h
+++ b/arch/mips/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_MIPS_SETUP_H
 #define _UAPI_MIPS_SETUP_H
 
diff --git a/arch/mips/include/uapi/asm/sgidefs.h b/arch/mips/include/uapi/asm/sgidefs.h
index 876442fcfb32..26143e3b7c26 100644
--- a/arch/mips/include/uapi/asm/sgidefs.h
+++ b/arch/mips/include/uapi/asm/sgidefs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/shmbuf.h b/arch/mips/include/uapi/asm/shmbuf.h
index f994438277bf..379e6bca518b 100644
--- a/arch/mips/include/uapi/asm/shmbuf.h
+++ b/arch/mips/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SHMBUF_H
 #define _ASM_SHMBUF_H
 
diff --git a/arch/mips/include/uapi/asm/sigcontext.h b/arch/mips/include/uapi/asm/sigcontext.h
index 5cbd9ae6421f..d0a540e88bb4 100644
--- a/arch/mips/include/uapi/asm/sigcontext.h
+++ b/arch/mips/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/siginfo.h b/arch/mips/include/uapi/asm/siginfo.h
index cf6113bbcb98..f17d8163dec6 100644
--- a/arch/mips/include/uapi/asm/siginfo.h
+++ b/arch/mips/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/signal.h b/arch/mips/include/uapi/asm/signal.h
index addb9f556b71..53104b10aae2 100644
--- a/arch/mips/include/uapi/asm/signal.h
+++ b/arch/mips/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 6c755bc07975..49c3d4795963 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/sockios.h b/arch/mips/include/uapi/asm/sockios.h
index 419fbe661da3..5b40a88593fa 100644
--- a/arch/mips/include/uapi/asm/sockios.h
+++ b/arch/mips/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Socket-level I/O control calls.
  *
diff --git a/arch/mips/include/uapi/asm/stat.h b/arch/mips/include/uapi/asm/stat.h
index b47bc541bbc0..95416f366d7f 100644
--- a/arch/mips/include/uapi/asm/stat.h
+++ b/arch/mips/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/statfs.h b/arch/mips/include/uapi/asm/statfs.h
index 3305c834fc16..f4174dcaef5e 100644
--- a/arch/mips/include/uapi/asm/statfs.h
+++ b/arch/mips/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/swab.h b/arch/mips/include/uapi/asm/swab.h
index 23cd9b118c9e..d6795fe4ec59 100644
--- a/arch/mips/include/uapi/asm/swab.h
+++ b/arch/mips/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/sysmips.h b/arch/mips/include/uapi/asm/sysmips.h
index ae637e907856..4c009e10dfd2 100644
--- a/arch/mips/include/uapi/asm/sysmips.h
+++ b/arch/mips/include/uapi/asm/sysmips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for the MIPS sysmips(2) call
  *
diff --git a/arch/mips/include/uapi/asm/termbits.h b/arch/mips/include/uapi/asm/termbits.h
index 2750203e1e7d..dfeffba729b7 100644
--- a/arch/mips/include/uapi/asm/termbits.h
+++ b/arch/mips/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/termios.h b/arch/mips/include/uapi/asm/termios.h
index baeb2fa87451..d6c576794178 100644
--- a/arch/mips/include/uapi/asm/termios.h
+++ b/arch/mips/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/types.h b/arch/mips/include/uapi/asm/types.h
index f3dd9ff0cc0c..6b21504842a4 100644
--- a/arch/mips/include/uapi/asm/types.h
+++ b/arch/mips/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/include/uapi/asm/ucontext.h b/arch/mips/include/uapi/asm/ucontext.h
index 2320144ce858..2d3bf8eebf1f 100644
--- a/arch/mips/include/uapi/asm/ucontext.h
+++ b/arch/mips/include/uapi/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __MIPS_UAPI_ASM_UCONTEXT_H
 #define __MIPS_UAPI_ASM_UCONTEXT_H
 
diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index 78faf4292e90..bb05e9916a5f 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/arch/mips/jazz/Kconfig b/arch/mips/jazz/Kconfig
index fb1e072da30b..06838f80a5d7 100644
--- a/arch/mips/jazz/Kconfig
+++ b/arch/mips/jazz/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ACER_PICA_61
 	bool "Support for Acer PICA 1 chipset"
 	depends on MACH_JAZZ
diff --git a/arch/mips/jazz/jazzdma.c b/arch/mips/jazz/jazzdma.c
index 11172fdaeffc..d626a9a391cc 100644
--- a/arch/mips/jazz/jazzdma.c
+++ b/arch/mips/jazz/jazzdma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Mips Jazz DMA controller support
  * Copyright (C) 1995, 1996 by Andreas Busse
diff --git a/arch/mips/jazz/reset.c b/arch/mips/jazz/reset.c
index dd889fe86bd1..052b01f5d935 100644
--- a/arch/mips/jazz/reset.c
+++ b/arch/mips/jazz/reset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Reset a Jazz machine.
  *
diff --git a/arch/mips/jz4740/Kconfig b/arch/mips/jz4740/Kconfig
index 36f82017695d..643af2012e14 100644
--- a/arch/mips/jz4740/Kconfig
+++ b/arch/mips/jz4740/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "Machine type"
 	depends on MACH_INGENIC
diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile
index 6b9c1f7c31c9..88d6aa7d000b 100644
--- a/arch/mips/jz4740/Makefile
+++ b/arch/mips/jz4740/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Ingenic JZ4740.
 #
diff --git a/arch/mips/jz4740/reset.h b/arch/mips/jz4740/reset.h
index 5202ab4ad9db..4e8746ee9b61 100644
--- a/arch/mips/jz4740/reset.h
+++ b/arch/mips/jz4740/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MIPS_JZ4740_RESET_H__
 #define __MIPS_JZ4740_RESET_H__
 
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 46c0581256f1..f10e1e15e1c6 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/MIPS kernel.
 #
@@ -35,11 +36,15 @@ obj-$(CONFIG_MODULES)		+= module.o
 obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
 obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
 
-obj-$(CONFIG_CPU_R4K_FPU)	+= r4k_fpu.o r4k_switch.o
-obj-$(CONFIG_CPU_R3000)		+= r2300_fpu.o r2300_switch.o
-obj-$(CONFIG_CPU_R6000)		+= r6000_fpu.o r4k_switch.o
-obj-$(CONFIG_CPU_TX39XX)	+= r2300_fpu.o r2300_switch.o
-obj-$(CONFIG_CPU_CAVIUM_OCTEON)	+= r4k_fpu.o octeon_switch.o
+sw-y				:= r4k_switch.o
+sw-$(CONFIG_CPU_R3000)		:= r2300_switch.o
+sw-$(CONFIG_CPU_TX39XX)		:= r2300_switch.o
+sw-$(CONFIG_CPU_CAVIUM_OCTEON)	:= octeon_switch.o
+obj-y				+= $(sw-y)
+
+obj-$(CONFIG_CPU_R4K_FPU)	+= r4k_fpu.o
+obj-$(CONFIG_CPU_R3000)		+= r2300_fpu.o
+obj-$(CONFIG_CPU_TX39XX)	+= r2300_fpu.o
 
 obj-$(CONFIG_SMP)		+= smp.o
 obj-$(CONFIG_SMP_UP)		+= smp-up.o
diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index a670c0c11875..c1cd41456d42 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * asm-offsets.c: Calculate pt_regs and task_struct offsets.
  *
diff --git a/arch/mips/kernel/binfmt_elfn32.c b/arch/mips/kernel/binfmt_elfn32.c
index 4a2ff3953b99..89b234844534 100644
--- a/arch/mips/kernel/binfmt_elfn32.c
+++ b/arch/mips/kernel/binfmt_elfn32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for n32 Linux/MIPS ELF binaries.
  * Author: Ralf Baechle (ralf@linux-mips.org)
diff --git a/arch/mips/kernel/binfmt_elfo32.c b/arch/mips/kernel/binfmt_elfo32.c
index 3916404e7fd1..a88c59db3d48 100644
--- a/arch/mips/kernel/binfmt_elfo32.c
+++ b/arch/mips/kernel/binfmt_elfo32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for o32 Linux/MIPS ELF binaries.
  * Author: Ralf Baechle (ralf@linux-mips.org)
diff --git a/arch/mips/kernel/cmpxchg.c b/arch/mips/kernel/cmpxchg.c
index 7730f1d3434f..0b9535bc2c53 100644
--- a/arch/mips/kernel/cmpxchg.c
+++ b/arch/mips/kernel/cmpxchg.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2017 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/kernel/cps-vec-ns16550.S b/arch/mips/kernel/cps-vec-ns16550.S
index 6d246ad05638..b37af23a5358 100644
--- a/arch/mips/kernel/cps-vec-ns16550.S
+++ b/arch/mips/kernel/cps-vec-ns16550.S
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/kernel/cps-vec.S b/arch/mips/kernel/cps-vec.S
index b849fe6aad94..c7ed26029cbb 100644
--- a/arch/mips/kernel/cps-vec.S
+++ b/arch/mips/kernel/cps-vec.S
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -327,8 +327,8 @@ LEAF(mips_cps_get_bootcfg)
 	 * to handle contiguous VP numbering, but no such systems yet
 	 * exist.
 	 */
-	mfc0	t9, $3, 1
-	andi	t9, t9, 0xff
+	mfc0	t9, CP0_GLOBALNUMBER
+	andi	t9, t9, MIPS_GLOBALNUMBER_VP
 #elif defined(CONFIG_MIPS_MT_SMP)
 	has_mt	ta2, 1f
 
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index d08afc7dc507..cf3fd549e16d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -326,7 +326,7 @@ static int __init fpu_disable(char *s)
 
 __setup("nofpu", fpu_disable);
 
-int mips_dsp_disabled;
+static int mips_dsp_disabled;
 
 static int __init dsp_disable(char *s)
 {
@@ -919,9 +919,12 @@ static void decode_configs(struct cpuinfo_mips *c)
 
 #ifndef CONFIG_MIPS_CPS
 	if (cpu_has_mips_r2_r6) {
-		c->core = get_ebase_cpunum();
+		unsigned int core;
+
+		core = get_ebase_cpunum();
 		if (cpu_has_mipsmt)
-			c->core >>= fls(core_nvpes()) - 1;
+			core >>= fls(core_nvpes()) - 1;
+		cpu_set_core(c, core);
 	}
 #endif
 }
@@ -1394,24 +1397,6 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 			     MIPS_CPU_DIVEC | MIPS_CPU_LLSC;
 		c->tlbsize = 48;
 		break;
-	case PRID_IMP_R6000:
-		c->cputype = CPU_R6000;
-		__cpu_name[cpu] = "R6000";
-		set_isa(c, MIPS_CPU_ISA_II);
-		c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS;
-		c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
-			     MIPS_CPU_LLSC;
-		c->tlbsize = 32;
-		break;
-	case PRID_IMP_R6000A:
-		c->cputype = CPU_R6000A;
-		__cpu_name[cpu] = "R6000A";
-		set_isa(c, MIPS_CPU_ISA_II);
-		c->fpu_msk31 |= FPU_CSR_CONDX | FPU_CSR_FS;
-		c->options = MIPS_CPU_TLB | MIPS_CPU_FPU |
-			     MIPS_CPU_LLSC;
-		c->tlbsize = 32;
-		break;
 	case PRID_IMP_RM7000:
 		c->cputype = CPU_RM7000;
 		__cpu_name[cpu] = "RM7000";
@@ -2113,3 +2098,35 @@ void cpu_report(void)
 	if (cpu_has_msa)
 		pr_info("MSA revision is: %08x\n", c->msa_id);
 }
+
+void cpu_set_cluster(struct cpuinfo_mips *cpuinfo, unsigned int cluster)
+{
+	/* Ensure the core number fits in the field */
+	WARN_ON(cluster > (MIPS_GLOBALNUMBER_CLUSTER >>
+			   MIPS_GLOBALNUMBER_CLUSTER_SHF));
+
+	cpuinfo->globalnumber &= ~MIPS_GLOBALNUMBER_CLUSTER;
+	cpuinfo->globalnumber |= cluster << MIPS_GLOBALNUMBER_CLUSTER_SHF;
+}
+
+void cpu_set_core(struct cpuinfo_mips *cpuinfo, unsigned int core)
+{
+	/* Ensure the core number fits in the field */
+	WARN_ON(core > (MIPS_GLOBALNUMBER_CORE >> MIPS_GLOBALNUMBER_CORE_SHF));
+
+	cpuinfo->globalnumber &= ~MIPS_GLOBALNUMBER_CORE;
+	cpuinfo->globalnumber |= core << MIPS_GLOBALNUMBER_CORE_SHF;
+}
+
+void cpu_set_vpe_id(struct cpuinfo_mips *cpuinfo, unsigned int vpe)
+{
+	/* Ensure the VP(E) ID fits in the field */
+	WARN_ON(vpe > (MIPS_GLOBALNUMBER_VP >> MIPS_GLOBALNUMBER_VP_SHF));
+
+	/* Ensure we're not using VP(E)s without support */
+	WARN_ON(vpe && !IS_ENABLED(CONFIG_MIPS_MT_SMP) &&
+		!IS_ENABLED(CONFIG_CPU_MIPSR6));
+
+	cpuinfo->globalnumber &= ~MIPS_GLOBALNUMBER_VP;
+	cpuinfo->globalnumber |= vpe << MIPS_GLOBALNUMBER_VP_SHF;
+}
diff --git a/arch/mips/kernel/crash.c b/arch/mips/kernel/crash.c
index ca25cd393b1c..d455363d51c3 100644
--- a/arch/mips/kernel/crash.c
+++ b/arch/mips/kernel/crash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/smp.h>
 #include <linux/reboot.h>
diff --git a/arch/mips/kernel/crash_dump.c b/arch/mips/kernel/crash_dump.c
index 77ee99a2d0aa..a8657d29c62e 100644
--- a/arch/mips/kernel/crash_dump.c
+++ b/arch/mips/kernel/crash_dump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/highmem.h>
 #include <linux/bootmem.h>
 #include <linux/crash_dump.h>
diff --git a/arch/mips/kernel/elf.c b/arch/mips/kernel/elf.c
index 5c429d70e17f..731325a61a78 100644
--- a/arch/mips/kernel/elf.c
+++ b/arch/mips/kernel/elf.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -87,6 +87,7 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
 	bool elf32;
 	u32 flags;
 	int ret;
+	loff_t pos;
 
 	elf32 = ehdr->e32.e_ident[EI_CLASS] == ELFCLASS32;
 	flags = elf32 ? ehdr->e32.e_flags : ehdr->e64.e_flags;
@@ -108,21 +109,16 @@ int arch_elf_pt_proc(void *_ehdr, void *_phdr, struct file *elf,
 
 		if (phdr32->p_filesz < sizeof(abiflags))
 			return -EINVAL;
-
-		ret = kernel_read(elf, phdr32->p_offset,
-				  (char *)&abiflags,
-				  sizeof(abiflags));
+		pos = phdr32->p_offset;
 	} else {
 		if (phdr64->p_type != PT_MIPS_ABIFLAGS)
 			return 0;
 		if (phdr64->p_filesz < sizeof(abiflags))
 			return -EINVAL;
-
-		ret = kernel_read(elf, phdr64->p_offset,
-				  (char *)&abiflags,
-				  sizeof(abiflags));
+		pos = phdr64->p_offset;
 	}
 
+	ret = kernel_read(elf, &abiflags, sizeof(abiflags), &pos);
 	if (ret < 0)
 		return ret;
 	if (ret != sizeof(abiflags))
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 9d9b8fbae202..99285be0e088 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Code for replacing ftrace calls with jumps.
  *
diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index ae810da4d499..37b9383eacd3 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -150,6 +150,7 @@ LEAF(__r4k_wait)
 	.align	5
 BUILD_ROLLBACK_PROLOGUE handle_int
 NESTED(handle_int, PT_SIZE, sp)
+	.cfi_signal_frame
 #ifdef CONFIG_TRACE_IRQFLAGS
 	/*
 	 * Check to see if the interrupted code has just disabled
@@ -181,7 +182,7 @@ NESTED(handle_int, PT_SIZE, sp)
 1:
 	.set pop
 #endif
-	SAVE_ALL
+	SAVE_ALL docfi=1
 	CLI
 	TRACE_IRQS_OFF
 
@@ -269,8 +270,8 @@ NESTED(except_vec_ejtag_debug, 0, sp)
  */
 BUILD_ROLLBACK_PROLOGUE except_vec_vi
 NESTED(except_vec_vi, 0, sp)
-	SAVE_SOME
-	SAVE_AT
+	SAVE_SOME docfi=1
+	SAVE_AT docfi=1
 	.set	push
 	.set	noreorder
 	PTR_LA	v1, except_vec_vi_handler
@@ -396,6 +397,7 @@ NESTED(except_vec_nmi, 0, sp)
 	__FINIT
 
 NESTED(nmi_handler, PT_SIZE, sp)
+	.cfi_signal_frame
 	.set	push
 	.set	noat
 	/*
@@ -478,6 +480,7 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	.macro	__BUILD_HANDLER exception handler clear verbose ext
 	.align	5
 	NESTED(handle_\exception, PT_SIZE, sp)
+	.cfi_signal_frame
 	.set	noat
 	SAVE_ALL
 	FEXPORT(handle_\exception\ext)
@@ -485,8 +488,8 @@ NESTED(nmi_handler, PT_SIZE, sp)
 	.set	at
 	__BUILD_\verbose \exception
 	move	a0, sp
-	PTR_LA	ra, ret_from_exception
-	j	do_\handler
+	jal	do_\handler
+	j	ret_from_exception
 	END(handle_\exception)
 	.endm
 
diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c
index c5bc344fc745..5f209f111e59 100644
--- a/arch/mips/kernel/i8253.c
+++ b/arch/mips/kernel/i8253.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * i8253.c  8253/PIT functions
  *
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 60ab4c44d305..7c246b69c545 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -11,6 +11,7 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
+#include <linux/cpu.h>
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/irqflags.h>
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index b01bdef101a8..b332f6fc1e72 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Conversion between 32-bit and 64-bit native system calls.
  *
diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
index cb0c57f860d4..dd5567b1e305 100644
--- a/arch/mips/kernel/mips-cm.c
+++ b/arch/mips/kernel/mips-cm.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -12,10 +12,10 @@
 #include <linux/percpu.h>
 #include <linux/spinlock.h>
 
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 #include <asm/mipsregs.h>
 
-void __iomem *mips_cm_base;
+void __iomem *mips_gcr_base;
 void __iomem *mips_cm_l2sync_base;
 int mips_cm_is64;
 
@@ -167,8 +167,8 @@ phys_addr_t __mips_cm_l2sync_phys_base(void)
 	 * current location.
 	 */
 	base_reg = read_gcr_l2_only_sync_base();
-	if (base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_MSK)
-		return base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_MSK;
+	if (base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN)
+		return base_reg & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE;
 
 	/* Default to following the CM */
 	return mips_cm_phys_base() + MIPS_CM_GCR_SIZE;
@@ -183,19 +183,19 @@ static void mips_cm_probe_l2sync(void)
 	phys_addr_t addr;
 
 	/* L2-only sync was introduced with CM major revision 6 */
-	major_rev = (read_gcr_rev() & CM_GCR_REV_MAJOR_MSK) >>
-		CM_GCR_REV_MAJOR_SHF;
+	major_rev = (read_gcr_rev() & CM_GCR_REV_MAJOR) >>
+		__ffs(CM_GCR_REV_MAJOR);
 	if (major_rev < 6)
 		return;
 
 	/* Find a location for the L2 sync region */
 	addr = mips_cm_l2sync_phys_base();
-	BUG_ON((addr & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE_MSK) != addr);
+	BUG_ON((addr & CM_GCR_L2_ONLY_SYNC_BASE_SYNCBASE) != addr);
 	if (!addr)
 		return;
 
 	/* Set the region base address & enable it */
-	write_gcr_l2_only_sync_base(addr | CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN_MSK);
+	write_gcr_l2_only_sync_base(addr | CM_GCR_L2_ONLY_SYNC_BASE_SYNCEN);
 
 	/* Map the region */
 	mips_cm_l2sync_base = ioremap_nocache(addr, MIPS_CM_L2SYNC_SIZE);
@@ -211,41 +211,39 @@ int mips_cm_probe(void)
 	 * No need to probe again if we have already been
 	 * here before.
 	 */
-	if (mips_cm_base)
+	if (mips_gcr_base)
 		return 0;
 
 	addr = mips_cm_phys_base();
-	BUG_ON((addr & CM_GCR_BASE_GCRBASE_MSK) != addr);
+	BUG_ON((addr & CM_GCR_BASE_GCRBASE) != addr);
 	if (!addr)
 		return -ENODEV;
 
-	mips_cm_base = ioremap_nocache(addr, MIPS_CM_GCR_SIZE);
-	if (!mips_cm_base)
+	mips_gcr_base = ioremap_nocache(addr, MIPS_CM_GCR_SIZE);
+	if (!mips_gcr_base)
 		return -ENXIO;
 
 	/* sanity check that we're looking at a CM */
 	base_reg = read_gcr_base();
-	if ((base_reg & CM_GCR_BASE_GCRBASE_MSK) != addr) {
+	if ((base_reg & CM_GCR_BASE_GCRBASE) != addr) {
 		pr_err("GCRs appear to have been moved (expected them at 0x%08lx)!\n",
 		       (unsigned long)addr);
-		mips_cm_base = NULL;
+		mips_gcr_base = NULL;
 		return -ENODEV;
 	}
 
 	/* set default target to memory */
-	base_reg &= ~CM_GCR_BASE_CMDEFTGT_MSK;
-	base_reg |= CM_GCR_BASE_CMDEFTGT_MEM;
-	write_gcr_base(base_reg);
+	change_gcr_base(CM_GCR_BASE_CMDEFTGT, CM_GCR_BASE_CMDEFTGT_MEM);
 
 	/* disable CM regions */
-	write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
-	write_gcr_reg0_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
-	write_gcr_reg1_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
-	write_gcr_reg1_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
-	write_gcr_reg2_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
-	write_gcr_reg2_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
-	write_gcr_reg3_base(CM_GCR_REGn_BASE_BASEADDR_MSK);
-	write_gcr_reg3_mask(CM_GCR_REGn_MASK_ADDRMASK_MSK);
+	write_gcr_reg0_base(CM_GCR_REGn_BASE_BASEADDR);
+	write_gcr_reg0_mask(CM_GCR_REGn_MASK_ADDRMASK);
+	write_gcr_reg1_base(CM_GCR_REGn_BASE_BASEADDR);
+	write_gcr_reg1_mask(CM_GCR_REGn_MASK_ADDRMASK);
+	write_gcr_reg2_base(CM_GCR_REGn_BASE_BASEADDR);
+	write_gcr_reg2_mask(CM_GCR_REGn_MASK_ADDRMASK);
+	write_gcr_reg3_base(CM_GCR_REGn_BASE_BASEADDR);
+	write_gcr_reg3_mask(CM_GCR_REGn_MASK_ADDRMASK);
 
 	/* probe for an L2-only sync region */
 	mips_cm_probe_l2sync();
@@ -259,16 +257,27 @@ int mips_cm_probe(void)
 	return 0;
 }
 
-void mips_cm_lock_other(unsigned int core, unsigned int vp)
+void mips_cm_lock_other(unsigned int cluster, unsigned int core,
+			unsigned int vp, unsigned int block)
 {
-	unsigned curr_core;
+	unsigned int curr_core, cm_rev;
 	u32 val;
 
+	cm_rev = mips_cm_revision();
 	preempt_disable();
 
-	if (mips_cm_revision() >= CM_REV_CM3) {
-		val = core << CM3_GCR_Cx_OTHER_CORE_SHF;
-		val |= vp << CM3_GCR_Cx_OTHER_VP_SHF;
+	if (cm_rev >= CM_REV_CM3) {
+		val = core << __ffs(CM3_GCR_Cx_OTHER_CORE);
+		val |= vp << __ffs(CM3_GCR_Cx_OTHER_VP);
+
+		if (cm_rev >= CM_REV_CM3_5) {
+			val |= CM_GCR_Cx_OTHER_CLUSTER_EN;
+			val |= cluster << __ffs(CM_GCR_Cx_OTHER_CLUSTER);
+			val |= block << __ffs(CM_GCR_Cx_OTHER_BLOCK);
+		} else {
+			WARN_ON(cluster != 0);
+			WARN_ON(block != CM_GCR_Cx_OTHER_BLOCK_LOCAL);
+		}
 
 		/*
 		 * We need to disable interrupts in SMP systems in order to
@@ -282,18 +291,20 @@ void mips_cm_lock_other(unsigned int core, unsigned int vp)
 		spin_lock_irqsave(this_cpu_ptr(&cm_core_lock),
 				  *this_cpu_ptr(&cm_core_lock_flags));
 	} else {
+		WARN_ON(cluster != 0);
 		WARN_ON(vp != 0);
+		WARN_ON(block != CM_GCR_Cx_OTHER_BLOCK_LOCAL);
 
 		/*
 		 * We only have a GCR_CL_OTHER per core in systems with
 		 * CM 2.5 & older, so have to ensure other VP(E)s don't
 		 * race with us.
 		 */
-		curr_core = current_cpu_data.core;
+		curr_core = cpu_core(&current_cpu_data);
 		spin_lock_irqsave(&per_cpu(cm_core_lock, curr_core),
 				  per_cpu(cm_core_lock_flags, curr_core));
 
-		val = core << CM_GCR_Cx_OTHER_CORENUM_SHF;
+		val = core << __ffs(CM_GCR_Cx_OTHER_CORENUM);
 	}
 
 	write_gcr_cl_other(val);
@@ -310,7 +321,7 @@ void mips_cm_unlock_other(void)
 	unsigned int curr_core;
 
 	if (mips_cm_revision() < CM_REV_CM3) {
-		curr_core = current_cpu_data.core;
+		curr_core = cpu_core(&current_cpu_data);
 		spin_unlock_irqrestore(&per_cpu(cm_core_lock, curr_core),
 				       per_cpu(cm_core_lock_flags, curr_core));
 	} else {
@@ -332,13 +343,13 @@ void mips_cm_error_report(void)
 		return;
 
 	revision = mips_cm_revision();
+	cm_error = read_gcr_error_cause();
+	cm_addr = read_gcr_error_addr();
+	cm_other = read_gcr_error_mult();
 
 	if (revision < CM_REV_CM3) { /* CM2 */
-		cm_error = read_gcr_error_cause();
-		cm_addr = read_gcr_error_addr();
-		cm_other = read_gcr_error_mult();
-		cause = cm_error >> CM_GCR_ERROR_CAUSE_ERRTYPE_SHF;
-		ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+		cause = cm_error >> __ffs(CM_GCR_ERROR_CAUSE_ERRTYPE);
+		ocause = cm_other >> __ffs(CM_GCR_ERROR_MULT_ERR2ND);
 
 		if (!cause)
 			return;
@@ -380,11 +391,8 @@ void mips_cm_error_report(void)
 		ulong core_id_bits, vp_id_bits, cmd_bits, cmd_group_bits;
 		ulong cm3_cca_bits, mcp_bits, cm3_tr_bits, sched_bit;
 
-		cm_error = read64_gcr_error_cause();
-		cm_addr = read64_gcr_error_addr();
-		cm_other = read64_gcr_error_mult();
-		cause = cm_error >> CM3_GCR_ERROR_CAUSE_ERRTYPE_SHF;
-		ocause = cm_other >> CM_GCR_ERROR_MULT_ERR2ND_SHF;
+		cause = cm_error >> __ffs64(CM3_GCR_ERROR_CAUSE_ERRTYPE);
+		ocause = cm_other >> __ffs(CM_GCR_ERROR_MULT_ERR2ND);
 
 		if (!cause)
 			return;
diff --git a/arch/mips/kernel/mips-cpc.c b/arch/mips/kernel/mips-cpc.c
index a4964c334cab..19c88d770054 100644
--- a/arch/mips/kernel/mips-cpc.c
+++ b/arch/mips/kernel/mips-cpc.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -12,8 +12,7 @@
 #include <linux/percpu.h>
 #include <linux/spinlock.h>
 
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 
 void __iomem *mips_cpc_base;
 
@@ -40,13 +39,13 @@ static phys_addr_t mips_cpc_phys_base(void)
 	if (!mips_cm_present())
 		return 0;
 
-	if (!(read_gcr_cpc_status() & CM_GCR_CPC_STATUS_EX_MSK))
+	if (!(read_gcr_cpc_status() & CM_GCR_CPC_STATUS_EX))
 		return 0;
 
 	/* If the CPC is already enabled, leave it so */
 	cpc_base = read_gcr_cpc_base();
-	if (cpc_base & CM_GCR_CPC_BASE_CPCEN_MSK)
-		return cpc_base & CM_GCR_CPC_BASE_CPCBASE_MSK;
+	if (cpc_base & CM_GCR_CPC_BASE_CPCEN)
+		return cpc_base & CM_GCR_CPC_BASE_CPCBASE;
 
 	/* Otherwise, use the default address */
 	cpc_base = mips_cpc_default_phys_base();
@@ -54,7 +53,7 @@ static phys_addr_t mips_cpc_phys_base(void)
 		return cpc_base;
 
 	/* Enable the CPC, mapped at the default address */
-	write_gcr_cpc_base(cpc_base | CM_GCR_CPC_BASE_CPCEN_MSK);
+	write_gcr_cpc_base(cpc_base | CM_GCR_CPC_BASE_CPCEN);
 	return cpc_base;
 }
 
@@ -86,10 +85,10 @@ void mips_cpc_lock_other(unsigned int core)
 		return;
 
 	preempt_disable();
-	curr_core = current_cpu_data.core;
+	curr_core = cpu_core(&current_cpu_data);
 	spin_lock_irqsave(&per_cpu(cpc_core_lock, curr_core),
 			  per_cpu(cpc_core_lock_flags, curr_core));
-	write_cpc_cl_other(core << CPC_Cx_OTHER_CORENUM_SHF);
+	write_cpc_cl_other(core << __ffs(CPC_Cx_OTHER_CORENUM));
 
 	/*
 	 * Ensure the core-other region reflects the appropriate core &
@@ -106,7 +105,7 @@ void mips_cpc_unlock_other(void)
 		/* Systems with CM >= 3 lock the CPC via mips_cm_lock_other */
 		return;
 
-	curr_core = current_cpu_data.core;
+	curr_core = cpu_core(&current_cpu_data);
 	spin_unlock_irqrestore(&per_cpu(cpc_core_lock, curr_core),
 			       per_cpu(cpc_core_lock_flags, curr_core));
 	preempt_enable();
diff --git a/arch/mips/kernel/mips-mt-fpaff.c b/arch/mips/kernel/mips-mt-fpaff.c
index 8cab633e0e5a..a7c0f97e4b0d 100644
--- a/arch/mips/kernel/mips-mt-fpaff.c
+++ b/arch/mips/kernel/mips-mt-fpaff.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * General MIPS MT support routines, usable in AP/SP and SMVP.
  * Copyright (C) 2005 Mips Technologies, Inc
diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c
index 88b1ef5f868a..efaa2527657d 100644
--- a/arch/mips/kernel/mips-mt.c
+++ b/arch/mips/kernel/mips-mt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * General MIPS MT support routines, usable in AP/SP and SMVP.
  * Copyright (C) 2005 Mips Technologies, Inc
diff --git a/arch/mips/kernel/mips-r2-to-r6-emul.c b/arch/mips/kernel/mips-r2-to-r6-emul.c
index ae64c8f56a8c..eb18b186e858 100644
--- a/arch/mips/kernel/mips-r2-to-r6-emul.c
+++ b/arch/mips/kernel/mips-r2-to-r6-emul.c
@@ -46,9 +46,11 @@
 #define LL	"ll "
 #define SC	"sc "
 
-DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2emustats);
-DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2bdemustats);
-DEFINE_PER_CPU(struct mips_r2br_emulator_stats, mipsr2bremustats);
+#ifdef CONFIG_DEBUG_FS
+static DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2emustats);
+static DEFINE_PER_CPU(struct mips_r2_emulator_stats, mipsr2bdemustats);
+static DEFINE_PER_CPU(struct mips_r2br_emulator_stats, mipsr2bremustats);
+#endif
 
 extern const unsigned int fpucondbit[8];
 
@@ -600,7 +602,7 @@ static int ddivu_func(struct pt_regs *regs, u32 ir)
 }
 
 /* R6 removed instructions for the SPECIAL opcode */
-static struct r2_decoder_table spec_op_table[] = {
+static const struct r2_decoder_table spec_op_table[] = {
 	{ 0xfc1ff83f, 0x00000008, jr_func },
 	{ 0xfc00ffff, 0x00000018, mult_func },
 	{ 0xfc00ffff, 0x00000019, multu_func },
@@ -867,7 +869,7 @@ static int dclo_func(struct pt_regs *regs, u32 ir)
 }
 
 /* R6 removed instructions for the SPECIAL2 opcode */
-static struct r2_decoder_table spec2_op_table[] = {
+static const struct r2_decoder_table spec2_op_table[] = {
 	{ 0xfc00ffff, 0x70000000, madd_func },
 	{ 0xfc00ffff, 0x70000001, maddu_func },
 	{ 0xfc0007ff, 0x70000002, mul_func },
@@ -881,9 +883,9 @@ static struct r2_decoder_table spec2_op_table[] = {
 };
 
 static inline int mipsr2_find_op_func(struct pt_regs *regs, u32 inst,
-				      struct r2_decoder_table *table)
+				      const struct r2_decoder_table *table)
 {
-	struct r2_decoder_table *p;
+	const struct r2_decoder_table *p;
 	int err;
 
 	for (p = table; p->func; p++) {
diff --git a/arch/mips/kernel/octeon_switch.S b/arch/mips/kernel/octeon_switch.S
index 3375745b9198..e42113fe2762 100644
--- a/arch/mips/kernel/octeon_switch.S
+++ b/arch/mips/kernel/octeon_switch.S
@@ -10,12 +10,13 @@
  * Copyright (C) 2000 MIPS Technologies, Inc.
  *    written by Carsten Langgaard, carstenl@mips.com
  */
+#include <asm/asm.h>
+#include <asm/export.h>
+#include <asm/asm-offsets.h>
+#include <asm/mipsregs.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
 
-#define USE_ALTERNATE_RESUME_IMPL 1
-	.set push
-	.set arch=mips64r2
-#include "r4k_switch.S"
-	.set pop
 /*
  * task_struct *resume(task_struct *prev, task_struct *next,
  *		       struct thread_info *next_ti)
diff --git a/arch/mips/kernel/perf_event_mipsxx.c b/arch/mips/kernel/perf_event_mipsxx.c
index 9e6c74bf66c4..6668f67a61c3 100644
--- a/arch/mips/kernel/perf_event_mipsxx.c
+++ b/arch/mips/kernel/perf_event_mipsxx.c
@@ -618,8 +618,7 @@ static int mipspmu_event_init(struct perf_event *event)
 		return -ENOENT;
 	}
 
-	if ((unsigned int)event->cpu >= nr_cpumask_bits ||
-	    (event->cpu >= 0 && !cpu_online(event->cpu)))
+	if (event->cpu >= 0 && !cpu_online(event->cpu))
 		return -ENODEV;
 
 	if (!atomic_inc_not_zero(&active_events)) {
diff --git a/arch/mips/kernel/pm-cps.c b/arch/mips/kernel/pm-cps.c
index d99416094ba9..421e06dfee72 100644
--- a/arch/mips/kernel/pm-cps.c
+++ b/arch/mips/kernel/pm-cps.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -17,8 +17,7 @@
 #include <asm/cacheflush.h>
 #include <asm/cacheops.h>
 #include <asm/idle.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/mipsmtregs.h>
 #include <asm/pm.h>
 #include <asm/pm-cps.h>
@@ -49,7 +48,7 @@ static DEFINE_PER_CPU_READ_MOSTLY(cps_nc_entry_fn[CPS_PM_STATE_COUNT],
 				  nc_asm_enter);
 
 /* Bitmap indicating which states are supported by the system */
-DECLARE_BITMAP(state_support, CPS_PM_STATE_COUNT);
+static DECLARE_BITMAP(state_support, CPS_PM_STATE_COUNT);
 
 /*
  * Indicates the number of coupled VPEs ready to operate in a non-coherent
@@ -114,7 +113,7 @@ static void coupled_barrier(atomic_t *a, unsigned online)
 int cps_pm_enter_state(enum cps_pm_state state)
 {
 	unsigned cpu = smp_processor_id();
-	unsigned core = current_cpu_data.core;
+	unsigned core = cpu_core(&current_cpu_data);
 	unsigned online, left;
 	cpumask_t *coupled_mask = this_cpu_ptr(&online_coupled);
 	u32 *core_ready_count, *nc_core_ready_count;
@@ -167,7 +166,7 @@ int cps_pm_enter_state(enum cps_pm_state state)
 	nc_core_ready_count = nc_addr;
 
 	/* Ensure ready_count is zero-initialised before the assembly runs */
-	ACCESS_ONCE(*nc_core_ready_count) = 0;
+	WRITE_ONCE(*nc_core_ready_count, 0);
 	coupled_barrier(&per_cpu(pm_barrier, core), online);
 
 	/* Run the generated entry code */
@@ -486,7 +485,7 @@ static void *cps_gen_entry_code(unsigned cpu, enum cps_pm_state state)
 		* defined by the interAptiv & proAptiv SUMs as ensuring that the
 		*  operation resulting from the preceding store is complete.
 		*/
-		uasm_i_addiu(&p, t0, zero, 1 << cpu_data[cpu].core);
+		uasm_i_addiu(&p, t0, zero, 1 << cpu_core(&cpu_data[cpu]));
 		uasm_i_sw(&p, t0, 0, r_pcohctl);
 		uasm_i_lw(&p, t0, 0, r_pcohctl);
 
@@ -569,8 +568,8 @@ static void *cps_gen_entry_code(unsigned cpu, enum cps_pm_state state)
 	 * rest will just be performing a rather unusual nop.
 	 */
 	uasm_i_addiu(&p, t0, zero, mips_cm_revision() < CM_REV_CM3
-				? CM_GCR_Cx_COHERENCE_COHDOMAINEN_MSK
-				: CM3_GCR_Cx_COHERENCE_COHEN_MSK);
+				? CM_GCR_Cx_COHERENCE_COHDOMAINEN
+				: CM3_GCR_Cx_COHERENCE_COHEN);
 
 	uasm_i_sw(&p, t0, 0, r_pcohctl);
 	uasm_i_lw(&p, t0, 0, r_pcohctl);
@@ -640,7 +639,7 @@ out_err:
 static int cps_pm_online_cpu(unsigned int cpu)
 {
 	enum cps_pm_state state;
-	unsigned core = cpu_data[cpu].core;
+	unsigned core = cpu_core(&cpu_data[cpu]);
 	void *entry_fn, *core_rc;
 
 	for (state = CPS_PM_NC_WAIT; state < CPS_PM_STATE_COUNT; state++) {
@@ -692,7 +691,7 @@ static int __init cps_pm_init(void)
 	/* Detect whether a CPC is present */
 	if (mips_cpc_present()) {
 		/* Detect whether clock gating is implemented */
-		if (read_cpc_cl_stat_conf() & CPC_Cx_STAT_CONF_CLKGAT_IMPL_MSK)
+		if (read_cpc_cl_stat_conf() & CPC_Cx_STAT_CONF_CLKGAT_IMPL)
 			set_bit(CPS_PM_CLOCK_GATED, state_support);
 		else
 			pr_warn("pm-cps: CPC does not support clock gating\n");
diff --git a/arch/mips/kernel/probes-common.h b/arch/mips/kernel/probes-common.h
index dd08e41134b6..d2bf77b18822 100644
--- a/arch/mips/kernel/probes-common.h
+++ b/arch/mips/kernel/probes-common.h
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Marcin Nowakowski <marcin.nowakowski@imgtec.com>
+ * Author: Marcin Nowakowski <marcin.nowakowski@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 70604c753aa4..b2de408a259e 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1995, 1996, 2001  Ralf Baechle
  *  Copyright (C) 2001, 2004  MIPS Technologies, Inc.
@@ -134,13 +135,13 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	seq_printf(m, "kscratch registers\t: %d\n",
 		      hweight8(cpu_data[n].kscratch_mask));
 	seq_printf(m, "package\t\t\t: %d\n", cpu_data[n].package);
-	seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
+	seq_printf(m, "core\t\t\t: %d\n", cpu_core(&cpu_data[n]));
 
 #if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
 	if (cpu_has_mipsmt)
-		seq_printf(m, "VPE\t\t\t: %d\n", cpu_data[n].vpe_id);
+		seq_printf(m, "VPE\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));
 	else if (cpu_has_vp)
-		seq_printf(m, "VP\t\t\t: %d\n", cpu_data[n].vpe_id);
+		seq_printf(m, "VP\t\t\t: %d\n", cpu_vpe_id(&cpu_data[n]));
 #endif
 
 	sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 5351e1f3950d..c5ff6bfe2825 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -208,13 +208,13 @@ static inline int is_ra_save_ins(union mips_instruction *ip, int *poff)
 	 *
 	 * microMIPS is way more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[1])) {
+	if (mm_insn_16bit(ip->word >> 16)) {
 		switch (ip->mm16_r5_format.opcode) {
 		case mm_swsp16_op:
 			if (ip->mm16_r5_format.rt != 31)
 				return 0;
 
-			*poff = ip->mm16_r5_format.simmediate;
+			*poff = ip->mm16_r5_format.imm;
 			*poff = (*poff << 2) / sizeof(ulong);
 			return 1;
 
@@ -287,7 +287,7 @@ static inline int is_jump_ins(union mips_instruction *ip)
 	 *
 	 * microMIPS is kind of more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[1])) {
+	if (mm_insn_16bit(ip->word >> 16)) {
 		if ((ip->mm16_r5_format.opcode == mm_pool16c_op &&
 		    (ip->mm16_r5_format.rt & mm_jr16_op) == mm_jr16_op))
 			return 1;
@@ -313,9 +313,11 @@ static inline int is_jump_ins(union mips_instruction *ip)
 #endif
 }
 
-static inline int is_sp_move_ins(union mips_instruction *ip)
+static inline int is_sp_move_ins(union mips_instruction *ip, int *frame_size)
 {
 #ifdef CONFIG_CPU_MICROMIPS
+	unsigned short tmp;
+
 	/*
 	 * addiusp -imm
 	 * addius5 sp,-imm
@@ -324,21 +326,40 @@ static inline int is_sp_move_ins(union mips_instruction *ip)
 	 *
 	 * microMIPS is not more fun...
 	 */
-	if (mm_insn_16bit(ip->halfword[1])) {
-		return (ip->mm16_r3_format.opcode == mm_pool16d_op &&
-			ip->mm16_r3_format.simmediate && mm_addiusp_func) ||
-		       (ip->mm16_r5_format.opcode == mm_pool16d_op &&
-			ip->mm16_r5_format.rt == 29);
+	if (mm_insn_16bit(ip->word >> 16)) {
+		if (ip->mm16_r3_format.opcode == mm_pool16d_op &&
+		    ip->mm16_r3_format.simmediate & mm_addiusp_func) {
+			tmp = ip->mm_b0_format.simmediate >> 1;
+			tmp = ((tmp & 0x1ff) ^ 0x100) - 0x100;
+			if ((tmp + 2) < 4) /* 0x0,0x1,0x1fe,0x1ff are special */
+				tmp ^= 0x100;
+			*frame_size = -(signed short)(tmp << 2);
+			return 1;
+		}
+		if (ip->mm16_r5_format.opcode == mm_pool16d_op &&
+		    ip->mm16_r5_format.rt == 29) {
+			tmp = ip->mm16_r5_format.imm >> 1;
+			*frame_size = -(signed short)(tmp & 0xf);
+			return 1;
+		}
+		return 0;
 	}
 
-	return ip->mm_i_format.opcode == mm_addiu32_op &&
-	       ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29;
+	if (ip->mm_i_format.opcode == mm_addiu32_op &&
+	    ip->mm_i_format.rt == 29 && ip->mm_i_format.rs == 29) {
+		*frame_size = -ip->i_format.simmediate;
+		return 1;
+	}
 #else
 	/* addiu/daddiu sp,sp,-imm */
 	if (ip->i_format.rs != 29 || ip->i_format.rt != 29)
 		return 0;
-	if (ip->i_format.opcode == addiu_op || ip->i_format.opcode == daddiu_op)
+
+	if (ip->i_format.opcode == addiu_op ||
+	    ip->i_format.opcode == daddiu_op) {
+		*frame_size = -ip->i_format.simmediate;
 		return 1;
+	}
 #endif
 	return 0;
 }
@@ -348,7 +369,9 @@ static int get_frame_info(struct mips_frame_info *info)
 	bool is_mmips = IS_ENABLED(CONFIG_CPU_MICROMIPS);
 	union mips_instruction insn, *ip, *ip_end;
 	const unsigned int max_insns = 128;
+	unsigned int last_insn_size = 0;
 	unsigned int i;
+	bool saw_jump = false;
 
 	info->pc_offset = -1;
 	info->frame_size = 0;
@@ -359,47 +382,44 @@ static int get_frame_info(struct mips_frame_info *info)
 
 	ip_end = (void *)ip + info->func_size;
 
-	for (i = 0; i < max_insns && ip < ip_end; i++, ip++) {
+	for (i = 0; i < max_insns && ip < ip_end; i++) {
+		ip = (void *)ip + last_insn_size;
 		if (is_mmips && mm_insn_16bit(ip->halfword[0])) {
-			insn.halfword[0] = 0;
-			insn.halfword[1] = ip->halfword[0];
+			insn.word = ip->halfword[0] << 16;
+			last_insn_size = 2;
 		} else if (is_mmips) {
-			insn.halfword[0] = ip->halfword[1];
-			insn.halfword[1] = ip->halfword[0];
+			insn.word = ip->halfword[0] << 16 | ip->halfword[1];
+			last_insn_size = 4;
 		} else {
 			insn.word = ip->word;
+			last_insn_size = 4;
 		}
 
-		if (is_jump_ins(&insn))
-			break;
-
 		if (!info->frame_size) {
-			if (is_sp_move_ins(&insn))
-			{
-#ifdef CONFIG_CPU_MICROMIPS
-				if (mm_insn_16bit(ip->halfword[0]))
-				{
-					unsigned short tmp;
-
-					if (ip->halfword[0] & mm_addiusp_func)
-					{
-						tmp = (((ip->halfword[0] >> 1) & 0x1ff) << 2);
-						info->frame_size = -(signed short)(tmp | ((tmp & 0x100) ? 0xfe00 : 0));
-					} else {
-						tmp = (ip->halfword[0] >> 1);
-						info->frame_size = -(signed short)(tmp & 0xf);
-					}
-					ip = (void *) &ip->halfword[1];
-					ip--;
-				} else
-#endif
-				info->frame_size = - ip->i_format.simmediate;
-			}
+			is_sp_move_ins(&insn, &info->frame_size);
+			continue;
+		} else if (!saw_jump && is_jump_ins(ip)) {
+			/*
+			 * If we see a jump instruction, we are finished
+			 * with the frame save.
+			 *
+			 * Some functions can have a shortcut return at
+			 * the beginning of the function, so don't start
+			 * looking for jump instruction until we see the
+			 * frame setup.
+			 *
+			 * The RA save instruction can get put into the
+			 * delay slot of the jump instruction, so look
+			 * at the next instruction, too.
+			 */
+			saw_jump = true;
 			continue;
 		}
 		if (info->pc_offset == -1 &&
 		    is_ra_save_ins(&insn, &info->pc_offset))
 			break;
+		if (saw_jump)
+			break;
 	}
 	if (info->frame_size && info->pc_offset >= 0) /* nested */
 		return 0;
diff --git a/arch/mips/kernel/r2300_fpu.S b/arch/mips/kernel/r2300_fpu.S
index 918f2f6d3861..3062ba66c563 100644
--- a/arch/mips/kernel/r2300_fpu.S
+++ b/arch/mips/kernel/r2300_fpu.S
@@ -12,7 +12,9 @@
  * Copyright (c) 1998 Harald Koerfgen
  */
 #include <asm/asm.h>
+#include <asm/asmmacro.h>
 #include <asm/errno.h>
+#include <asm/export.h>
 #include <asm/fpregdef.h>
 #include <asm/mipsregs.h>
 #include <asm/asm-offsets.h>
@@ -31,9 +33,85 @@
 	PTR	9b+4,bad_stack;					\
 	.previous
 
-	.set	noreorder
 	.set	mips1
 
+/*
+ * Save a thread's fp context.
+ */
+LEAF(_save_fp)
+EXPORT_SYMBOL(_save_fp)
+	fpu_save_single a0, t1			# clobbers t1
+	jr	ra
+	END(_save_fp)
+
+/*
+ * Restore a thread's fp context.
+ */
+LEAF(_restore_fp)
+	fpu_restore_single a0, t1		# clobbers t1
+	jr	ra
+	END(_restore_fp)
+
+/*
+ * Load the FPU with signalling NANS.  This bit pattern we're using has
+ * the property that no matter whether considered as single or as double
+ * precision represents signaling NANS.
+ *
+ * The value to initialize fcr31 to comes in $a0.
+ */
+
+	.set push
+	SET_HARDFLOAT
+
+LEAF(_init_fpu)
+	mfc0	t0, CP0_STATUS
+	li	t1, ST0_CU1
+	or	t0, t1
+	mtc0	t0, CP0_STATUS
+
+	ctc1	a0, fcr31
+
+	li	t0, -1
+
+	mtc1	t0, $f0
+	mtc1	t0, $f1
+	mtc1	t0, $f2
+	mtc1	t0, $f3
+	mtc1	t0, $f4
+	mtc1	t0, $f5
+	mtc1	t0, $f6
+	mtc1	t0, $f7
+	mtc1	t0, $f8
+	mtc1	t0, $f9
+	mtc1	t0, $f10
+	mtc1	t0, $f11
+	mtc1	t0, $f12
+	mtc1	t0, $f13
+	mtc1	t0, $f14
+	mtc1	t0, $f15
+	mtc1	t0, $f16
+	mtc1	t0, $f17
+	mtc1	t0, $f18
+	mtc1	t0, $f19
+	mtc1	t0, $f20
+	mtc1	t0, $f21
+	mtc1	t0, $f22
+	mtc1	t0, $f23
+	mtc1	t0, $f24
+	mtc1	t0, $f25
+	mtc1	t0, $f26
+	mtc1	t0, $f27
+	mtc1	t0, $f28
+	mtc1	t0, $f29
+	mtc1	t0, $f30
+	mtc1	t0, $f31
+	jr	ra
+	END(_init_fpu)
+
+	.set pop
+
+	.set	noreorder
+
 /**
  * _save_fp_context() - save FP context from the FPU
  * @a0 - pointer to fpregs field of sigcontext
diff --git a/arch/mips/kernel/r2300_switch.S b/arch/mips/kernel/r2300_switch.S
index 1049eeafd97d..665897139f30 100644
--- a/arch/mips/kernel/r2300_switch.S
+++ b/arch/mips/kernel/r2300_switch.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * r2300_switch.S: R2300 specific task switching code.
  *
@@ -26,12 +27,6 @@
 	.align	5
 
 /*
- * Offset to the current process status flags, the first 32 bytes of the
- * stack are not used.
- */
-#define ST_OFF (_THREAD_SIZE - 32 - PT_SIZE + PT_STATUS)
-
-/*
  * task_struct *resume(task_struct *prev, task_struct *next,
  *		       struct thread_info *next_ti)
  */
@@ -68,78 +63,3 @@ LEAF(resume)
 	move	v0, a0
 	jr	ra
 	END(resume)
-
-/*
- * Save a thread's fp context.
- */
-LEAF(_save_fp)
-EXPORT_SYMBOL(_save_fp)
-	fpu_save_single a0, t1			# clobbers t1
-	jr	ra
-	END(_save_fp)
-
-/*
- * Restore a thread's fp context.
- */
-LEAF(_restore_fp)
-	fpu_restore_single a0, t1		# clobbers t1
-	jr	ra
-	END(_restore_fp)
-
-/*
- * Load the FPU with signalling NANS.  This bit pattern we're using has
- * the property that no matter whether considered as single or as double
- * precision represents signaling NANS.
- *
- * The value to initialize fcr31 to comes in $a0.
- */
-
-	.set push
-	SET_HARDFLOAT
-
-LEAF(_init_fpu)
-	mfc0	t0, CP0_STATUS
-	li	t1, ST0_CU1
-	or	t0, t1
-	mtc0	t0, CP0_STATUS
-
-	ctc1	a0, fcr31
-
-	li	t0, -1
-
-	mtc1	t0, $f0
-	mtc1	t0, $f1
-	mtc1	t0, $f2
-	mtc1	t0, $f3
-	mtc1	t0, $f4
-	mtc1	t0, $f5
-	mtc1	t0, $f6
-	mtc1	t0, $f7
-	mtc1	t0, $f8
-	mtc1	t0, $f9
-	mtc1	t0, $f10
-	mtc1	t0, $f11
-	mtc1	t0, $f12
-	mtc1	t0, $f13
-	mtc1	t0, $f14
-	mtc1	t0, $f15
-	mtc1	t0, $f16
-	mtc1	t0, $f17
-	mtc1	t0, $f18
-	mtc1	t0, $f19
-	mtc1	t0, $f20
-	mtc1	t0, $f21
-	mtc1	t0, $f22
-	mtc1	t0, $f23
-	mtc1	t0, $f24
-	mtc1	t0, $f25
-	mtc1	t0, $f26
-	mtc1	t0, $f27
-	mtc1	t0, $f28
-	mtc1	t0, $f29
-	mtc1	t0, $f30
-	mtc1	t0, $f31
-	jr	ra
-	END(_init_fpu)
-
-	.set pop
diff --git a/arch/mips/kernel/r4k_fpu.S b/arch/mips/kernel/r4k_fpu.S
index 56d86b09c917..0a83b1708b3c 100644
--- a/arch/mips/kernel/r4k_fpu.S
+++ b/arch/mips/kernel/r4k_fpu.S
@@ -15,6 +15,7 @@
 #include <asm/asm.h>
 #include <asm/asmmacro.h>
 #include <asm/errno.h>
+#include <asm/export.h>
 #include <asm/fpregdef.h>
 #include <asm/mipsregs.h>
 #include <asm/asm-offsets.h>
@@ -34,6 +35,201 @@
 	.previous
 	.endm
 
+/*
+ * Save a thread's fp context.
+ */
+LEAF(_save_fp)
+EXPORT_SYMBOL(_save_fp)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
+		defined(CONFIG_CPU_MIPS32_R6)
+	mfc0	t0, CP0_STATUS
+#endif
+	fpu_save_double a0 t0 t1		# clobbers t1
+	jr	ra
+	END(_save_fp)
+
+/*
+ * Restore a thread's fp context.
+ */
+LEAF(_restore_fp)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
+		defined(CONFIG_CPU_MIPS32_R6)
+	mfc0	t0, CP0_STATUS
+#endif
+	fpu_restore_double a0 t0 t1		# clobbers t1
+	jr	ra
+	END(_restore_fp)
+
+#ifdef CONFIG_CPU_HAS_MSA
+
+/*
+ * Save a thread's MSA vector context.
+ */
+LEAF(_save_msa)
+EXPORT_SYMBOL(_save_msa)
+	msa_save_all	a0
+	jr	ra
+	END(_save_msa)
+
+/*
+ * Restore a thread's MSA vector context.
+ */
+LEAF(_restore_msa)
+	msa_restore_all	a0
+	jr	ra
+	END(_restore_msa)
+
+LEAF(_init_msa_upper)
+	msa_init_all_upper
+	jr	ra
+	END(_init_msa_upper)
+
+#endif
+
+/*
+ * Load the FPU with signalling NANS.  This bit pattern we're using has
+ * the property that no matter whether considered as single or as double
+ * precision represents signaling NANS.
+ *
+ * The value to initialize fcr31 to comes in $a0.
+ */
+
+	.set push
+	SET_HARDFLOAT
+
+LEAF(_init_fpu)
+	mfc0	t0, CP0_STATUS
+	li	t1, ST0_CU1
+	or	t0, t1
+	mtc0	t0, CP0_STATUS
+	enable_fpu_hazard
+
+	ctc1	a0, fcr31
+
+	li	t1, -1				# SNaN
+
+#ifdef CONFIG_64BIT
+	sll	t0, t0, 5
+	bgez	t0, 1f				# 16 / 32 register mode?
+
+	dmtc1	t1, $f1
+	dmtc1	t1, $f3
+	dmtc1	t1, $f5
+	dmtc1	t1, $f7
+	dmtc1	t1, $f9
+	dmtc1	t1, $f11
+	dmtc1	t1, $f13
+	dmtc1	t1, $f15
+	dmtc1	t1, $f17
+	dmtc1	t1, $f19
+	dmtc1	t1, $f21
+	dmtc1	t1, $f23
+	dmtc1	t1, $f25
+	dmtc1	t1, $f27
+	dmtc1	t1, $f29
+	dmtc1	t1, $f31
+1:
+#endif
+
+#ifdef CONFIG_CPU_MIPS32
+	mtc1	t1, $f0
+	mtc1	t1, $f1
+	mtc1	t1, $f2
+	mtc1	t1, $f3
+	mtc1	t1, $f4
+	mtc1	t1, $f5
+	mtc1	t1, $f6
+	mtc1	t1, $f7
+	mtc1	t1, $f8
+	mtc1	t1, $f9
+	mtc1	t1, $f10
+	mtc1	t1, $f11
+	mtc1	t1, $f12
+	mtc1	t1, $f13
+	mtc1	t1, $f14
+	mtc1	t1, $f15
+	mtc1	t1, $f16
+	mtc1	t1, $f17
+	mtc1	t1, $f18
+	mtc1	t1, $f19
+	mtc1	t1, $f20
+	mtc1	t1, $f21
+	mtc1	t1, $f22
+	mtc1	t1, $f23
+	mtc1	t1, $f24
+	mtc1	t1, $f25
+	mtc1	t1, $f26
+	mtc1	t1, $f27
+	mtc1	t1, $f28
+	mtc1	t1, $f29
+	mtc1	t1, $f30
+	mtc1	t1, $f31
+
+#if defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6)
+	.set    push
+	.set    MIPS_ISA_LEVEL_RAW
+	.set	fp=64
+	sll     t0, t0, 5			# is Status.FR set?
+	bgez    t0, 1f				# no: skip setting upper 32b
+
+	mthc1   t1, $f0
+	mthc1   t1, $f1
+	mthc1   t1, $f2
+	mthc1   t1, $f3
+	mthc1   t1, $f4
+	mthc1   t1, $f5
+	mthc1   t1, $f6
+	mthc1   t1, $f7
+	mthc1   t1, $f8
+	mthc1   t1, $f9
+	mthc1   t1, $f10
+	mthc1   t1, $f11
+	mthc1   t1, $f12
+	mthc1   t1, $f13
+	mthc1   t1, $f14
+	mthc1   t1, $f15
+	mthc1   t1, $f16
+	mthc1   t1, $f17
+	mthc1   t1, $f18
+	mthc1   t1, $f19
+	mthc1   t1, $f20
+	mthc1   t1, $f21
+	mthc1   t1, $f22
+	mthc1   t1, $f23
+	mthc1   t1, $f24
+	mthc1   t1, $f25
+	mthc1   t1, $f26
+	mthc1   t1, $f27
+	mthc1   t1, $f28
+	mthc1   t1, $f29
+	mthc1   t1, $f30
+	mthc1   t1, $f31
+1:	.set    pop
+#endif /* CONFIG_CPU_MIPS32_R2 || CONFIG_CPU_MIPS32_R6 */
+#else
+	.set	MIPS_ISA_ARCH_LEVEL_RAW
+	dmtc1	t1, $f0
+	dmtc1	t1, $f2
+	dmtc1	t1, $f4
+	dmtc1	t1, $f6
+	dmtc1	t1, $f8
+	dmtc1	t1, $f10
+	dmtc1	t1, $f12
+	dmtc1	t1, $f14
+	dmtc1	t1, $f16
+	dmtc1	t1, $f18
+	dmtc1	t1, $f20
+	dmtc1	t1, $f22
+	dmtc1	t1, $f24
+	dmtc1	t1, $f26
+	dmtc1	t1, $f28
+	dmtc1	t1, $f30
+#endif
+	jr	ra
+	END(_init_fpu)
+
+	.set pop	/* SET_HARDFLOAT */
+
 	.set	noreorder
 
 /**
diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S
index 7b386d54fd65..17cf9341c1cf 100644
--- a/arch/mips/kernel/r4k_switch.S
+++ b/arch/mips/kernel/r4k_switch.S
@@ -12,8 +12,6 @@
  */
 #include <asm/asm.h>
 #include <asm/cachectl.h>
-#include <asm/export.h>
-#include <asm/fpregdef.h>
 #include <asm/mipsregs.h>
 #include <asm/asm-offsets.h>
 #include <asm/regdef.h>
@@ -22,10 +20,6 @@
 
 #include <asm/asmmacro.h>
 
-/* preprocessor replaces the fp in ".set fp=64" with $30 otherwise */
-#undef fp
-
-#ifndef USE_ALTERNATE_RESUME_IMPL
 /*
  * task_struct *resume(task_struct *prev, task_struct *next,
  *		       struct thread_info *next_ti)
@@ -63,200 +57,3 @@
 	move	v0, a0
 	jr	ra
 	END(resume)
-
-#endif /* USE_ALTERNATE_RESUME_IMPL */
-
-/*
- * Save a thread's fp context.
- */
-LEAF(_save_fp)
-EXPORT_SYMBOL(_save_fp)
-#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
-		defined(CONFIG_CPU_MIPS32_R6)
-	mfc0	t0, CP0_STATUS
-#endif
-	fpu_save_double a0 t0 t1		# clobbers t1
-	jr	ra
-	END(_save_fp)
-
-/*
- * Restore a thread's fp context.
- */
-LEAF(_restore_fp)
-#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2) || \
-		defined(CONFIG_CPU_MIPS32_R6)
-	mfc0	t0, CP0_STATUS
-#endif
-	fpu_restore_double a0 t0 t1		# clobbers t1
-	jr	ra
-	END(_restore_fp)
-
-#ifdef CONFIG_CPU_HAS_MSA
-
-/*
- * Save a thread's MSA vector context.
- */
-LEAF(_save_msa)
-EXPORT_SYMBOL(_save_msa)
-	msa_save_all	a0
-	jr	ra
-	END(_save_msa)
-
-/*
- * Restore a thread's MSA vector context.
- */
-LEAF(_restore_msa)
-	msa_restore_all	a0
-	jr	ra
-	END(_restore_msa)
-
-LEAF(_init_msa_upper)
-	msa_init_all_upper
-	jr	ra
-	END(_init_msa_upper)
-
-#endif
-
-/*
- * Load the FPU with signalling NANS.  This bit pattern we're using has
- * the property that no matter whether considered as single or as double
- * precision represents signaling NANS.
- *
- * The value to initialize fcr31 to comes in $a0.
- */
-
-	.set push
-	SET_HARDFLOAT
-
-LEAF(_init_fpu)
-	mfc0	t0, CP0_STATUS
-	li	t1, ST0_CU1
-	or	t0, t1
-	mtc0	t0, CP0_STATUS
-	enable_fpu_hazard
-
-	ctc1	a0, fcr31
-
-	li	t1, -1				# SNaN
-
-#ifdef CONFIG_64BIT
-	sll	t0, t0, 5
-	bgez	t0, 1f				# 16 / 32 register mode?
-
-	dmtc1	t1, $f1
-	dmtc1	t1, $f3
-	dmtc1	t1, $f5
-	dmtc1	t1, $f7
-	dmtc1	t1, $f9
-	dmtc1	t1, $f11
-	dmtc1	t1, $f13
-	dmtc1	t1, $f15
-	dmtc1	t1, $f17
-	dmtc1	t1, $f19
-	dmtc1	t1, $f21
-	dmtc1	t1, $f23
-	dmtc1	t1, $f25
-	dmtc1	t1, $f27
-	dmtc1	t1, $f29
-	dmtc1	t1, $f31
-1:
-#endif
-
-#ifdef CONFIG_CPU_MIPS32
-	mtc1	t1, $f0
-	mtc1	t1, $f1
-	mtc1	t1, $f2
-	mtc1	t1, $f3
-	mtc1	t1, $f4
-	mtc1	t1, $f5
-	mtc1	t1, $f6
-	mtc1	t1, $f7
-	mtc1	t1, $f8
-	mtc1	t1, $f9
-	mtc1	t1, $f10
-	mtc1	t1, $f11
-	mtc1	t1, $f12
-	mtc1	t1, $f13
-	mtc1	t1, $f14
-	mtc1	t1, $f15
-	mtc1	t1, $f16
-	mtc1	t1, $f17
-	mtc1	t1, $f18
-	mtc1	t1, $f19
-	mtc1	t1, $f20
-	mtc1	t1, $f21
-	mtc1	t1, $f22
-	mtc1	t1, $f23
-	mtc1	t1, $f24
-	mtc1	t1, $f25
-	mtc1	t1, $f26
-	mtc1	t1, $f27
-	mtc1	t1, $f28
-	mtc1	t1, $f29
-	mtc1	t1, $f30
-	mtc1	t1, $f31
-
-#if defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_CPU_MIPS32_R6)
-	.set    push
-	.set    MIPS_ISA_LEVEL_RAW
-	.set	fp=64
-	sll     t0, t0, 5			# is Status.FR set?
-	bgez    t0, 1f				# no: skip setting upper 32b
-
-	mthc1   t1, $f0
-	mthc1   t1, $f1
-	mthc1   t1, $f2
-	mthc1   t1, $f3
-	mthc1   t1, $f4
-	mthc1   t1, $f5
-	mthc1   t1, $f6
-	mthc1   t1, $f7
-	mthc1   t1, $f8
-	mthc1   t1, $f9
-	mthc1   t1, $f10
-	mthc1   t1, $f11
-	mthc1   t1, $f12
-	mthc1   t1, $f13
-	mthc1   t1, $f14
-	mthc1   t1, $f15
-	mthc1   t1, $f16
-	mthc1   t1, $f17
-	mthc1   t1, $f18
-	mthc1   t1, $f19
-	mthc1   t1, $f20
-	mthc1   t1, $f21
-	mthc1   t1, $f22
-	mthc1   t1, $f23
-	mthc1   t1, $f24
-	mthc1   t1, $f25
-	mthc1   t1, $f26
-	mthc1   t1, $f27
-	mthc1   t1, $f28
-	mthc1   t1, $f29
-	mthc1   t1, $f30
-	mthc1   t1, $f31
-1:	.set    pop
-#endif /* CONFIG_CPU_MIPS32_R2 || CONFIG_CPU_MIPS32_R6 */
-#else
-	.set	MIPS_ISA_ARCH_LEVEL_RAW
-	dmtc1	t1, $f0
-	dmtc1	t1, $f2
-	dmtc1	t1, $f4
-	dmtc1	t1, $f6
-	dmtc1	t1, $f8
-	dmtc1	t1, $f10
-	dmtc1	t1, $f12
-	dmtc1	t1, $f14
-	dmtc1	t1, $f16
-	dmtc1	t1, $f18
-	dmtc1	t1, $f20
-	dmtc1	t1, $f22
-	dmtc1	t1, $f24
-	dmtc1	t1, $f26
-	dmtc1	t1, $f28
-	dmtc1	t1, $f30
-#endif
-	jr	ra
-	END(_init_fpu)
-
-	.set pop	/* SET_HARDFLOAT */
diff --git a/arch/mips/kernel/r6000_fpu.S b/arch/mips/kernel/r6000_fpu.S
deleted file mode 100644
index 9cc7bfab3419..000000000000
--- a/arch/mips/kernel/r6000_fpu.S
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * r6000_fpu.S: Save/restore floating point context for signal handlers.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1996 by Ralf Baechle
- *
- * Multi-arch abstraction and asm macros for easier reading:
- * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
- */
-#include <asm/asm.h>
-#include <asm/fpregdef.h>
-#include <asm/mipsregs.h>
-#include <asm/asm-offsets.h>
-#include <asm/regdef.h>
-
-	.set	noreorder
-	.set	mips2
-	.set	push
-	SET_HARDFLOAT
-
-/**
- * _save_fp_context() - save FP context from the FPU
- * @a0 - pointer to fpregs field of sigcontext
- * @a1 - pointer to fpc_csr field of sigcontext
- *
- * Save FP context, including the 32 FP data registers and the FP
- * control & status register, from the FPU to signal context.
- */
-	LEAF(_save_fp_context)
-	mfc0	t0,CP0_STATUS
-	sll	t0,t0,2
-	bgez	t0,1f
-	 nop
-
-	cfc1	t1,fcr31
-	/* Store the 16 double precision registers */
-	sdc1	$f0,0(a0)
-	sdc1	$f2,16(a0)
-	sdc1	$f4,32(a0)
-	sdc1	$f6,48(a0)
-	sdc1	$f8,64(a0)
-	sdc1	$f10,80(a0)
-	sdc1	$f12,96(a0)
-	sdc1	$f14,112(a0)
-	sdc1	$f16,128(a0)
-	sdc1	$f18,144(a0)
-	sdc1	$f20,160(a0)
-	sdc1	$f22,176(a0)
-	sdc1	$f24,192(a0)
-	sdc1	$f26,208(a0)
-	sdc1	$f28,224(a0)
-	sdc1	$f30,240(a0)
-	jr	ra
-	 sw	t0,(a1)
-1:	jr	ra
-	 nop
-	END(_save_fp_context)
-
-/**
- * _restore_fp_context() - restore FP context to the FPU
- * @a0 - pointer to fpregs field of sigcontext
- * @a1 - pointer to fpc_csr field of sigcontext
- *
- * Restore FP context, including the 32 FP data registers and the FP
- * control & status register, from signal context to the FPU.
- */
-	LEAF(_restore_fp_context)
-	mfc0	t0,CP0_STATUS
-	sll	t0,t0,2
-
-	bgez	t0,1f
-	 lw	t0,(a1)
-	/* Restore the 16 double precision registers */
-	ldc1	$f0,0(a0)
-	ldc1	$f2,16(a0)
-	ldc1	$f4,32(a0)
-	ldc1	$f6,48(a0)
-	ldc1	$f8,64(a0)
-	ldc1	$f10,80(a0)
-	ldc1	$f12,96(a0)
-	ldc1	$f14,112(a0)
-	ldc1	$f16,128(a0)
-	ldc1	$f18,144(a0)
-	ldc1	$f20,160(a0)
-	ldc1	$f22,176(a0)
-	ldc1	$f24,192(a0)
-	ldc1	$f26,208(a0)
-	ldc1	$f28,224(a0)
-	ldc1	$f30,240(a0)
-	jr	ra
-	 ctc1	t0,fcr31
-1:	jr	ra
-	 nop
-	END(_restore_fp_context)
-
-	.set pop	/* SET_HARDFLOAT */
diff --git a/arch/mips/kernel/relocate.c b/arch/mips/kernel/relocate.c
index 2d1a0c438771..cbf4cc0b0b6c 100644
--- a/arch/mips/kernel/relocate.c
+++ b/arch/mips/kernel/relocate.c
@@ -6,7 +6,7 @@
  * Support for Kernel relocation at boot time
  *
  * Copyright (C) 2015, Imagination Technologies Ltd.
- * Authors: Matt Redfearn (matt.redfearn@imgtec.com)
+ * Authors: Matt Redfearn (matt.redfearn@mips.com)
  */
 #include <asm/bootinfo.h>
 #include <asm/cacheflush.h>
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 1b070a76fcdd..87dcac2447c8 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -179,7 +179,7 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
 /*
  * Tell the hardware to boot CPUx - runs on CPU0
  */
-static void bmips_boot_secondary(int cpu, struct task_struct *idle)
+static int bmips_boot_secondary(int cpu, struct task_struct *idle)
 {
 	bmips_smp_boot_sp = __KSTK_TOS(idle);
 	bmips_smp_boot_gp = (unsigned long)task_thread_info(idle);
@@ -231,6 +231,8 @@ static void bmips_boot_secondary(int cpu, struct task_struct *idle)
 		}
 		cpumask_set_cpu(cpu, &bmips_booted_mask);
 	}
+
+	return 0;
 }
 
 /*
@@ -245,7 +247,7 @@ static void bmips_init_secondary(void)
 		break;
 	case CPU_BMIPS5000:
 		write_c0_brcm_action(ACTION_CLR_IPI(smp_processor_id(), 0));
-		current_cpu_data.core = (read_c0_brcm_config() >> 25) & 3;
+		cpu_set_core(&current_cpu_data, (read_c0_brcm_config() >> 25) & 3);
 		break;
 	}
 }
@@ -409,7 +411,7 @@ void __ref play_dead(void)
 
 #endif /* CONFIG_HOTPLUG_CPU */
 
-struct plat_smp_ops bmips43xx_smp_ops = {
+const struct plat_smp_ops bmips43xx_smp_ops = {
 	.smp_setup		= bmips_smp_setup,
 	.prepare_cpus		= bmips_prepare_cpus,
 	.boot_secondary		= bmips_boot_secondary,
@@ -423,7 +425,7 @@ struct plat_smp_ops bmips43xx_smp_ops = {
 #endif
 };
 
-struct plat_smp_ops bmips5000_smp_ops = {
+const struct plat_smp_ops bmips5000_smp_ops = {
 	.smp_setup		= bmips_smp_setup,
 	.prepare_cpus		= bmips_prepare_cpus,
 	.boot_secondary		= bmips_boot_secondary,
@@ -589,11 +591,11 @@ void __init bmips_cpu_setup(void)
 
 		/* Flush and enable RAC */
 		cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
-		__raw_writel(cfg | 0x100, BMIPS_RAC_CONFIG);
+		__raw_writel(cfg | 0x100, cbr + BMIPS_RAC_CONFIG);
 		__raw_readl(cbr + BMIPS_RAC_CONFIG);
 
 		cfg = __raw_readl(cbr + BMIPS_RAC_CONFIG);
-		__raw_writel(cfg | 0xf, BMIPS_RAC_CONFIG);
+		__raw_writel(cfg | 0xf, cbr + BMIPS_RAC_CONFIG);
 		__raw_readl(cbr + BMIPS_RAC_CONFIG);
 
 		cfg = __raw_readl(cbr + BMIPS_RAC_ADDRESS_RANGE);
diff --git a/arch/mips/kernel/smp-cmp.c b/arch/mips/kernel/smp-cmp.c
index 76923349b4fe..a2322009cac3 100644
--- a/arch/mips/kernel/smp-cmp.c
+++ b/arch/mips/kernel/smp-cmp.c
@@ -19,12 +19,11 @@
 #undef DEBUG
 
 #include <linux/kernel.h>
-#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/smp.h>
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
 #include <linux/compiler.h>
-#include <linux/irqchip/mips-gic.h>
 
 #include <linux/atomic.h>
 #include <asm/cacheflush.h>
@@ -51,8 +50,8 @@ static void cmp_init_secondary(void)
 
 #ifdef CONFIG_MIPS_MT_SMP
 	if (cpu_has_mipsmt)
-		c->vpe_id = (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) &
-			TCBIND_CURVPE;
+		cpu_set_vpe_id(c, (read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) &
+				  TCBIND_CURVPE);
 #endif
 }
 
@@ -78,7 +77,7 @@ static void cmp_smp_finish(void)
  * __KSTK_TOS(idle) is apparently the stack pointer
  * (unsigned long)idle->thread_info the gp
  */
-static void cmp_boot_secondary(int cpu, struct task_struct *idle)
+static int cmp_boot_secondary(int cpu, struct task_struct *idle)
 {
 	struct thread_info *gp = task_thread_info(idle);
 	unsigned long sp = __KSTK_TOS(idle);
@@ -95,6 +94,7 @@ static void cmp_boot_secondary(int cpu, struct task_struct *idle)
 #endif
 
 	amon_cpu_start(cpu, pc, sp, (unsigned long)gp, a0);
+	return 0;
 }
 
 /*
@@ -148,7 +148,7 @@ void __init cmp_prepare_cpus(unsigned int max_cpus)
 
 }
 
-struct plat_smp_ops cmp_smp_ops = {
+const struct plat_smp_ops cmp_smp_ops = {
 	.send_ipi_single	= mips_smp_send_ipi_single,
 	.send_ipi_mask		= mips_smp_send_ipi_mask,
 	.init_secondary		= cmp_init_secondary,
diff --git a/arch/mips/kernel/smp-cps.c b/arch/mips/kernel/smp-cps.c
index f832e99ad4c3..ecc1a853f48d 100644
--- a/arch/mips/kernel/smp-cps.c
+++ b/arch/mips/kernel/smp-cps.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2013 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -11,7 +11,6 @@
 #include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/io.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/sched/task_stack.h>
 #include <linux/sched/hotplug.h>
 #include <linux/slab.h>
@@ -19,8 +18,7 @@
 #include <linux/types.h>
 
 #include <asm/bcache.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/mips_mt.h>
 #include <asm/mipsregs.h>
 #include <asm/pm-cps.h>
@@ -41,55 +39,58 @@ static int __init setup_nothreads(char *s)
 }
 early_param("nothreads", setup_nothreads);
 
-static unsigned core_vpe_count(unsigned core)
+static unsigned core_vpe_count(unsigned int cluster, unsigned core)
 {
-	unsigned cfg;
-
 	if (threads_disabled)
 		return 1;
 
-	if ((!IS_ENABLED(CONFIG_MIPS_MT_SMP) || !cpu_has_mipsmt)
-		&& (!IS_ENABLED(CONFIG_CPU_MIPSR6) || !cpu_has_vp))
-		return 1;
-
-	mips_cm_lock_other(core, 0);
-	cfg = read_gcr_co_config() & CM_GCR_Cx_CONFIG_PVPE_MSK;
-	mips_cm_unlock_other();
-	return (cfg >> CM_GCR_Cx_CONFIG_PVPE_SHF) + 1;
+	return mips_cps_numvps(cluster, core);
 }
 
 static void __init cps_smp_setup(void)
 {
-	unsigned int ncores, nvpes, core_vpes;
+	unsigned int nclusters, ncores, nvpes, core_vpes;
 	unsigned long core_entry;
-	int c, v;
+	int cl, c, v;
 
 	/* Detect & record VPE topology */
-	ncores = mips_cm_numcores();
+	nvpes = 0;
+	nclusters = mips_cps_numclusters();
 	pr_info("%s topology ", cpu_has_mips_r6 ? "VP" : "VPE");
-	for (c = nvpes = 0; c < ncores; c++) {
-		core_vpes = core_vpe_count(c);
-		pr_cont("%c%u", c ? ',' : '{', core_vpes);
-
-		/* Use the number of VPEs in core 0 for smp_num_siblings */
-		if (!c)
-			smp_num_siblings = core_vpes;
-
-		for (v = 0; v < min_t(int, core_vpes, NR_CPUS - nvpes); v++) {
-			cpu_data[nvpes + v].core = c;
-#if defined(CONFIG_MIPS_MT_SMP) || defined(CONFIG_CPU_MIPSR6)
-			cpu_data[nvpes + v].vpe_id = v;
-#endif
+	for (cl = 0; cl < nclusters; cl++) {
+		if (cl > 0)
+			pr_cont(",");
+		pr_cont("{");
+
+		ncores = mips_cps_numcores(cl);
+		for (c = 0; c < ncores; c++) {
+			core_vpes = core_vpe_count(cl, c);
+
+			if (c > 0)
+				pr_cont(",");
+			pr_cont("%u", core_vpes);
+
+			/* Use the number of VPEs in cluster 0 core 0 for smp_num_siblings */
+			if (!cl && !c)
+				smp_num_siblings = core_vpes;
+
+			for (v = 0; v < min_t(int, core_vpes, NR_CPUS - nvpes); v++) {
+				cpu_set_cluster(&cpu_data[nvpes + v], cl);
+				cpu_set_core(&cpu_data[nvpes + v], c);
+				cpu_set_vpe_id(&cpu_data[nvpes + v], v);
+			}
+
+			nvpes += core_vpes;
 		}
 
-		nvpes += core_vpes;
+		pr_cont("}");
 	}
-	pr_cont("} total %u\n", nvpes);
+	pr_cont(" total %u\n", nvpes);
 
 	/* Indicate present CPUs (CPU being synonymous with VPE) */
 	for (v = 0; v < min_t(unsigned, nvpes, NR_CPUS); v++) {
-		set_cpu_possible(v, true);
-		set_cpu_present(v, true);
+		set_cpu_possible(v, cpu_cluster(&cpu_data[v]) == 0);
+		set_cpu_present(v, cpu_cluster(&cpu_data[v]) == 0);
 		__cpu_number_map[v] = v;
 		__cpu_logical_map[v] = v;
 	}
@@ -121,7 +122,7 @@ static void __init cps_smp_setup(void)
 static void __init cps_prepare_cpus(unsigned int max_cpus)
 {
 	unsigned ncores, core_vpes, c, cca;
-	bool cca_unsuitable;
+	bool cca_unsuitable, cores_limited;
 	u32 *entry_code;
 
 	mips_mt_set_cpuoptions();
@@ -141,19 +142,22 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
 	}
 
 	/* Warn the user if the CCA prevents multi-core */
-	ncores = mips_cm_numcores();
-	if ((cca_unsuitable || cpu_has_dc_aliases) && ncores > 1) {
+	cores_limited = false;
+	if (cca_unsuitable || cpu_has_dc_aliases) {
+		for_each_present_cpu(c) {
+			if (cpus_are_siblings(smp_processor_id(), c))
+				continue;
+
+			set_cpu_present(c, false);
+			cores_limited = true;
+		}
+	}
+	if (cores_limited)
 		pr_warn("Using only one core due to %s%s%s\n",
 			cca_unsuitable ? "unsuitable CCA" : "",
 			(cca_unsuitable && cpu_has_dc_aliases) ? " & " : "",
 			cpu_has_dc_aliases ? "dcache aliasing" : "");
 
-		for_each_present_cpu(c) {
-			if (cpu_data[c].core)
-				set_cpu_present(c, false);
-		}
-	}
-
 	/*
 	 * Patch the start of mips_cps_core_entry to provide:
 	 *
@@ -168,6 +172,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
 	__sync();
 
 	/* Allocate core boot configuration structs */
+	ncores = mips_cps_numcores(0);
 	mips_cps_core_bootcfg = kcalloc(ncores, sizeof(*mips_cps_core_bootcfg),
 					GFP_KERNEL);
 	if (!mips_cps_core_bootcfg) {
@@ -177,7 +182,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
 
 	/* Allocate VPE boot configuration structs */
 	for (c = 0; c < ncores; c++) {
-		core_vpes = core_vpe_count(c);
+		core_vpes = core_vpe_count(0, c);
 		mips_cps_core_bootcfg[c].vpe_config = kcalloc(core_vpes,
 				sizeof(*mips_cps_core_bootcfg[c].vpe_config),
 				GFP_KERNEL);
@@ -189,7 +194,7 @@ static void __init cps_prepare_cpus(unsigned int max_cpus)
 	}
 
 	/* Mark this CPU as booted */
-	atomic_set(&mips_cps_core_bootcfg[current_cpu_data.core].vpe_mask,
+	atomic_set(&mips_cps_core_bootcfg[cpu_core(&current_cpu_data)].vpe_mask,
 		   1 << cpu_vpe_id(&current_cpu_data));
 
 	return;
@@ -212,11 +217,11 @@ err_out:
 
 static void boot_core(unsigned int core, unsigned int vpe_id)
 {
-	u32 access, stat, seq_state;
+	u32 stat, seq_state;
 	unsigned timeout;
 
 	/* Select the appropriate core */
-	mips_cm_lock_other(core, 0);
+	mips_cm_lock_other(0, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
 
 	/* Set its reset vector */
 	write_gcr_co_reset_base(CKSEG1ADDR((unsigned long)mips_cps_core_entry));
@@ -225,12 +230,10 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
 	write_gcr_co_coherence(0);
 
 	/* Start it with the legacy memory map and exception base */
-	write_gcr_co_reset_ext_base(CM_GCR_RESET_EXT_BASE_UEB);
+	write_gcr_co_reset_ext_base(CM_GCR_Cx_RESET_EXT_BASE_UEB);
 
 	/* Ensure the core can access the GCRs */
-	access = read_gcr_access();
-	access |= 1 << (CM_GCR_ACCESS_ACCESSEN_SHF + core);
-	write_gcr_access(access);
+	set_gcr_access(1 << core);
 
 	if (mips_cpc_present()) {
 		/* Reset the core */
@@ -253,7 +256,8 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
 		timeout = 100;
 		while (true) {
 			stat = read_cpc_co_stat_conf();
-			seq_state = stat & CPC_Cx_STAT_CONF_SEQSTATE_MSK;
+			seq_state = stat & CPC_Cx_STAT_CONF_SEQSTATE;
+			seq_state >>= __ffs(CPC_Cx_STAT_CONF_SEQSTATE);
 
 			/* U6 == coherent execution, ie. the core is up */
 			if (seq_state == CPC_Cx_STAT_CONF_SEQSTATE_U6)
@@ -285,15 +289,15 @@ static void boot_core(unsigned int core, unsigned int vpe_id)
 
 static void remote_vpe_boot(void *dummy)
 {
-	unsigned core = current_cpu_data.core;
+	unsigned core = cpu_core(&current_cpu_data);
 	struct core_boot_config *core_cfg = &mips_cps_core_bootcfg[core];
 
 	mips_cps_boot_vpes(core_cfg, cpu_vpe_id(&current_cpu_data));
 }
 
-static void cps_boot_secondary(int cpu, struct task_struct *idle)
+static int cps_boot_secondary(int cpu, struct task_struct *idle)
 {
-	unsigned core = cpu_data[cpu].core;
+	unsigned core = cpu_core(&cpu_data[cpu]);
 	unsigned vpe_id = cpu_vpe_id(&cpu_data[cpu]);
 	struct core_boot_config *core_cfg = &mips_cps_core_bootcfg[core];
 	struct vpe_boot_config *vpe_cfg = &core_cfg->vpe_config[vpe_id];
@@ -301,6 +305,10 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle)
 	unsigned int remote;
 	int err;
 
+	/* We don't yet support booting CPUs in other clusters */
+	if (cpu_cluster(&cpu_data[cpu]) != cpu_cluster(&raw_current_cpu_data))
+		return -ENOSYS;
+
 	vpe_cfg->pc = (unsigned long)&smp_bootstrap;
 	vpe_cfg->sp = __KSTK_TOS(idle);
 	vpe_cfg->gp = (unsigned long)task_thread_info(idle);
@@ -316,16 +324,16 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle)
 	}
 
 	if (cpu_has_vp) {
-		mips_cm_lock_other(core, vpe_id);
+		mips_cm_lock_other(0, core, vpe_id, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
 		core_entry = CKSEG1ADDR((unsigned long)mips_cps_core_entry);
 		write_gcr_co_reset_base(core_entry);
 		mips_cm_unlock_other();
 	}
 
-	if (core != current_cpu_data.core) {
+	if (!cpus_are_siblings(cpu, smp_processor_id())) {
 		/* Boot a VPE on another powered up core */
 		for (remote = 0; remote < NR_CPUS; remote++) {
-			if (cpu_data[remote].core != core)
+			if (!cpus_are_siblings(cpu, remote))
 				continue;
 			if (cpu_online(remote))
 				break;
@@ -349,6 +357,7 @@ static void cps_boot_secondary(int cpu, struct task_struct *idle)
 	mips_cps_boot_vpes(core_cfg, vpe_id);
 out:
 	preempt_enable();
+	return 0;
 }
 
 static void cps_init_secondary(void)
@@ -358,7 +367,7 @@ static void cps_init_secondary(void)
 		dmt();
 
 	if (mips_cm_revision() >= CM_REV_CM3) {
-		unsigned ident = gic_read_local_vp_id();
+		unsigned int ident = read_gic_vl_ident();
 
 		/*
 		 * Ensure that our calculation of the VP ID matches up with
@@ -402,7 +411,7 @@ static int cps_cpu_disable(void)
 	if (!cps_pm_support_state(CPS_PM_POWER_GATED))
 		return -EINVAL;
 
-	core_cfg = &mips_cps_core_bootcfg[current_cpu_data.core];
+	core_cfg = &mips_cps_core_bootcfg[cpu_core(&current_cpu_data)];
 	atomic_sub(1 << cpu_vpe_id(&current_cpu_data), &core_cfg->vpe_mask);
 	smp_mb__after_atomic();
 	set_cpu_online(cpu, false);
@@ -424,15 +433,17 @@ void play_dead(void)
 	local_irq_disable();
 	idle_task_exit();
 	cpu = smp_processor_id();
-	core = cpu_data[cpu].core;
+	core = cpu_core(&cpu_data[cpu]);
 	cpu_death = CPU_DEATH_POWER;
 
 	pr_debug("CPU%d going offline\n", cpu);
 
 	if (cpu_has_mipsmt || cpu_has_vp) {
+		core = cpu_core(&cpu_data[cpu]);
+
 		/* Look for another online VPE within the core */
 		for_each_online_cpu(cpu_death_sibling) {
-			if (cpu_data[cpu_death_sibling].core != core)
+			if (!cpus_are_siblings(cpu, cpu_death_sibling))
 				continue;
 
 			/*
@@ -488,7 +499,7 @@ static void wait_for_sibling_halt(void *ptr_cpu)
 
 static void cps_cpu_die(unsigned int cpu)
 {
-	unsigned core = cpu_data[cpu].core;
+	unsigned core = cpu_core(&cpu_data[cpu]);
 	unsigned int vpe_id = cpu_vpe_id(&cpu_data[cpu]);
 	ktime_t fail_time;
 	unsigned stat;
@@ -519,10 +530,11 @@ static void cps_cpu_die(unsigned int cpu)
 		 */
 		fail_time = ktime_add_ms(ktime_get(), 2000);
 		do {
-			mips_cm_lock_other(core, 0);
+			mips_cm_lock_other(0, core, 0, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
 			mips_cpc_lock_other(core);
 			stat = read_cpc_co_stat_conf();
-			stat &= CPC_Cx_STAT_CONF_SEQSTATE_MSK;
+			stat &= CPC_Cx_STAT_CONF_SEQSTATE;
+			stat >>= __ffs(CPC_Cx_STAT_CONF_SEQSTATE);
 			mips_cpc_unlock_other();
 			mips_cm_unlock_other();
 
@@ -544,7 +556,7 @@ static void cps_cpu_die(unsigned int cpu)
 			 */
 			if (WARN(ktime_after(ktime_get(), fail_time),
 				 "CPU%u hasn't powered down, seq. state %u\n",
-				 cpu, stat >> CPC_Cx_STAT_CONF_SEQSTATE_SHF))
+				 cpu, stat))
 				break;
 		} while (1);
 
@@ -562,7 +574,7 @@ static void cps_cpu_die(unsigned int cpu)
 			panic("Failed to call remote sibling CPU\n");
 	} else if (cpu_has_vp) {
 		do {
-			mips_cm_lock_other(core, vpe_id);
+			mips_cm_lock_other(0, core, vpe_id, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
 			stat = read_cpc_co_vp_running();
 			mips_cm_unlock_other();
 		} while (stat & (1 << vpe_id));
@@ -571,7 +583,7 @@ static void cps_cpu_die(unsigned int cpu)
 
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static struct plat_smp_ops cps_smp_ops = {
+static const struct plat_smp_ops cps_smp_ops = {
 	.smp_setup		= cps_smp_setup,
 	.prepare_cpus		= cps_prepare_cpus,
 	.boot_secondary		= cps_boot_secondary,
@@ -587,7 +599,7 @@ static struct plat_smp_ops cps_smp_ops = {
 
 bool mips_cps_smp_in_use(void)
 {
-	extern struct plat_smp_ops *mp_ops;
+	extern const struct plat_smp_ops *mp_ops;
 	return mp_ops == &cps_smp_ops;
 }
 
@@ -599,7 +611,7 @@ int register_cps_smp_ops(void)
 	}
 
 	/* check we have a GIC - we need one for IPIs */
-	if (!(read_gcr_gic_status() & CM_GCR_GIC_STATUS_EX_MSK)) {
+	if (!(read_gcr_gic_status() & CM_GCR_GIC_STATUS_EX)) {
 		pr_warn("MIPS CPS SMP unable to proceed without a GIC\n");
 		return -ENODEV;
 	}
diff --git a/arch/mips/kernel/smp-mt.c b/arch/mips/kernel/smp-mt.c
index ed6b4df583ea..94ab3276b48c 100644
--- a/arch/mips/kernel/smp-mt.c
+++ b/arch/mips/kernel/smp-mt.c
@@ -21,7 +21,6 @@
 #include <linux/sched.h>
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/compiler.h>
 #include <linux/sched/task_stack.h>
 #include <linux/smp.h>
@@ -36,6 +35,7 @@
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
 #include <asm/mips_mt.h>
+#include <asm/mips-cps.h>
 
 static void __init smvp_copy_vpe_config(void)
 {
@@ -83,7 +83,7 @@ static unsigned int __init smvp_vpe_init(unsigned int tc, unsigned int mvpconf0,
 	if (tc != 0)
 		smvp_copy_vpe_config();
 
-	cpu_data[ncpu].vpe_id = tc;
+	cpu_set_vpe_id(&cpu_data[ncpu], tc);
 
 	return ncpu;
 }
@@ -118,14 +118,12 @@ static void __init smvp_tc_init(unsigned int tc, unsigned int mvpconf0)
 
 static void vsmp_init_secondary(void)
 {
-#ifdef CONFIG_MIPS_GIC
 	/* This is Malta specific: IPI,performance and timer interrupts */
-	if (gic_present)
+	if (mips_gic_present())
 		change_c0_status(ST0_IM, STATUSF_IP2 | STATUSF_IP3 |
 					 STATUSF_IP4 | STATUSF_IP5 |
 					 STATUSF_IP6 | STATUSF_IP7);
 	else
-#endif
 		change_c0_status(ST0_IM, STATUSF_IP0 | STATUSF_IP1 |
 					 STATUSF_IP6 | STATUSF_IP7);
 }
@@ -152,7 +150,7 @@ static void vsmp_smp_finish(void)
  * (unsigned long)idle->thread_info the gp
  * assumes a 1:1 mapping of TC => VPE
  */
-static void vsmp_boot_secondary(int cpu, struct task_struct *idle)
+static int vsmp_boot_secondary(int cpu, struct task_struct *idle)
 {
 	struct thread_info *gp = task_thread_info(idle);
 	dvpe();
@@ -184,6 +182,8 @@ static void vsmp_boot_secondary(int cpu, struct task_struct *idle)
 	clear_c0_mvpcontrol(MVPCONTROL_VPC);
 
 	evpe(EVPE_ENABLE);
+
+	return 0;
 }
 
 /*
@@ -239,7 +239,7 @@ static void __init vsmp_prepare_cpus(unsigned int max_cpus)
 	mips_mt_set_cpuoptions();
 }
 
-struct plat_smp_ops vsmp_smp_ops = {
+const struct plat_smp_ops vsmp_smp_ops = {
 	.send_ipi_single	= mips_smp_send_ipi_single,
 	.send_ipi_mask		= mips_smp_send_ipi_mask,
 	.init_secondary		= vsmp_init_secondary,
diff --git a/arch/mips/kernel/smp-up.c b/arch/mips/kernel/smp-up.c
index 17878d71ef2b..525d3196f793 100644
--- a/arch/mips/kernel/smp-up.c
+++ b/arch/mips/kernel/smp-up.c
@@ -39,8 +39,9 @@ static void up_smp_finish(void)
 /*
  * Firmware CPU startup hook
  */
-static void up_boot_secondary(int cpu, struct task_struct *idle)
+static int up_boot_secondary(int cpu, struct task_struct *idle)
 {
+	return 0;
 }
 
 static void __init up_smp_setup(void)
@@ -63,7 +64,7 @@ static void up_cpu_die(unsigned int cpu)
 }
 #endif
 
-struct plat_smp_ops up_smp_ops = {
+const struct plat_smp_ops up_smp_ops = {
 	.send_ipi_single	= up_send_ipi_single,
 	.send_ipi_mask		= up_send_ipi_mask,
 	.init_secondary		= up_init_secondary,
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index c7cbddfcdc3b..88be966d3e61 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -42,7 +42,7 @@
 #include <asm/processor.h>
 #include <asm/idle.h>
 #include <asm/r4k-timer.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/mmu_context.h>
 #include <asm/time.h>
 #include <asm/setup.h>
@@ -66,6 +66,7 @@ EXPORT_SYMBOL(cpu_sibling_map);
 cpumask_t cpu_core_map[NR_CPUS] __read_mostly;
 EXPORT_SYMBOL(cpu_core_map);
 
+static DECLARE_COMPLETION(cpu_starting);
 static DECLARE_COMPLETION(cpu_running);
 
 /*
@@ -96,8 +97,7 @@ static inline void set_cpu_sibling_map(int cpu)
 
 	if (smp_num_siblings > 1) {
 		for_each_cpu(i, &cpu_sibling_setup_map) {
-			if (cpu_data[cpu].package == cpu_data[i].package &&
-				    cpu_data[cpu].core == cpu_data[i].core) {
+			if (cpus_are_siblings(cpu, i)) {
 				cpumask_set_cpu(i, &cpu_sibling_map[cpu]);
 				cpumask_set_cpu(cpu, &cpu_sibling_map[i]);
 			}
@@ -134,8 +134,7 @@ void calculate_cpu_foreign_map(void)
 	for_each_online_cpu(i) {
 		core_present = 0;
 		for_each_cpu(k, &temp_foreign_map)
-			if (cpu_data[i].package == cpu_data[k].package &&
-			    cpu_data[i].core == cpu_data[k].core)
+			if (cpus_are_siblings(i, k))
 				core_present = 1;
 		if (!core_present)
 			cpumask_set_cpu(i, &temp_foreign_map);
@@ -146,10 +145,10 @@ void calculate_cpu_foreign_map(void)
 			       &temp_foreign_map, &cpu_sibling_map[i]);
 }
 
-struct plat_smp_ops *mp_ops;
+const struct plat_smp_ops *mp_ops;
 EXPORT_SYMBOL(mp_ops);
 
-void register_smp_ops(struct plat_smp_ops *ops)
+void register_smp_ops(const struct plat_smp_ops *ops)
 {
 	if (mp_ops)
 		printk(KERN_WARNING "Overriding previously set SMP ops\n");
@@ -186,13 +185,13 @@ void mips_smp_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 
 	if (mips_cpc_present()) {
 		for_each_cpu(cpu, mask) {
-			core = cpu_data[cpu].core;
-
-			if (core == current_cpu_data.core)
+			if (cpus_are_siblings(cpu, smp_processor_id()))
 				continue;
 
+			core = cpu_core(&cpu_data[cpu]);
+
 			while (!cpumask_test_cpu(cpu, &cpu_coherent_mask)) {
-				mips_cm_lock_other(core, 0);
+				mips_cm_lock_other_cpu(cpu, CM_GCR_Cx_OTHER_BLOCK_LOCAL);
 				mips_cpc_lock_other(core);
 				write_cpc_co_cmd(CPC_Cx_CMD_PWRUP);
 				mips_cpc_unlock_other();
@@ -376,6 +375,12 @@ asmlinkage void start_secondary(void)
 	cpumask_set_cpu(cpu, &cpu_coherent_mask);
 	notify_cpu_starting(cpu);
 
+	/* Notify boot CPU that we're starting & ready to sync counters */
+	complete(&cpu_starting);
+
+	synchronise_count_slave(cpu);
+
+	/* The CPU is running and counters synchronised, now mark it online */
 	set_cpu_online(cpu, true);
 
 	set_cpu_sibling_map(cpu);
@@ -383,8 +388,11 @@ asmlinkage void start_secondary(void)
 
 	calculate_cpu_foreign_map();
 
+	/*
+	 * Notify boot CPU that we're up & online and it can safely return
+	 * from __cpu_up
+	 */
 	complete(&cpu_running);
-	synchronise_count_slave(cpu);
 
 	/*
 	 * irq will be enabled in ->smp_finish(), enabling it too early
@@ -441,19 +449,23 @@ void smp_prepare_boot_cpu(void)
 
 int __cpu_up(unsigned int cpu, struct task_struct *tidle)
 {
-	mp_ops->boot_secondary(cpu, tidle);
+	int err;
 
-	/*
-	 * We must check for timeout here, as the CPU will not be marked
-	 * online until the counters are synchronised.
-	 */
-	if (!wait_for_completion_timeout(&cpu_running,
+	err = mp_ops->boot_secondary(cpu, tidle);
+	if (err)
+		return err;
+
+	/* Wait for CPU to start and be ready to sync counters */
+	if (!wait_for_completion_timeout(&cpu_starting,
 					 msecs_to_jiffies(1000))) {
 		pr_crit("CPU%u: failed to start\n", cpu);
 		return -EIO;
 	}
 
 	synchronise_count_master(cpu);
+
+	/* Wait for CPU to finish startup & mark itself online before return */
+	wait_for_completion(&cpu_running);
 	return 0;
 }
 
diff --git a/arch/mips/kernel/spinlock_test.c b/arch/mips/kernel/spinlock_test.c
index f7d86955d1b8..eaed550e79a2 100644
--- a/arch/mips/kernel/spinlock_test.c
+++ b/arch/mips/kernel/spinlock_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/kthread.h>
 #include <linux/hrtimer.h>
diff --git a/arch/mips/kernel/sync-r4k.c b/arch/mips/kernel/sync-r4k.c
index 1df1160b6a47..f2973ce87f53 100644
--- a/arch/mips/kernel/sync-r4k.c
+++ b/arch/mips/kernel/sync-r4k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Count register synchronisation.
  *
diff --git a/arch/mips/kernel/sysrq.c b/arch/mips/kernel/sysrq.c
index 5f055393092d..e5a2a6ab71ac 100644
--- a/arch/mips/kernel/sysrq.c
+++ b/arch/mips/kernel/sysrq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MIPS specific sysrq operations.
  *
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index c036157fb891..a6ebc8135112 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -72,20 +72,6 @@ EXPORT_SYMBOL(perf_irq);
 unsigned int mips_hpt_frequency;
 EXPORT_SYMBOL_GPL(mips_hpt_frequency);
 
-/*
- * This function exists in order to cause an error due to a duplicate
- * definition if platform code should have its own implementation.  The hook
- * to use instead is plat_time_init.  plat_time_init does not receive the
- * irqaction pointer argument anymore.	This is because any function which
- * initializes an interrupt timer now takes care of its own request_irq rsp.
- * setup_irq calls and each clock_event_device should use its own
- * struct irqrequest.
- */
-void __init plat_timer_setup(void)
-{
-	BUG();
-}
-
 static __init int cpu_has_mfc0_count_bug(void)
 {
 	switch (current_cpu_type()) {
diff --git a/arch/mips/kernel/topology.c b/arch/mips/kernel/topology.c
index cf3eb61fad12..cd3e1f82e1a5 100644
--- a/arch/mips/kernel/topology.c
+++ b/arch/mips/kernel/topology.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cpu.h>
 #include <linux/cpumask.h>
 #include <linux/init.h>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 2bf414993347..5669d3b8bd38 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -50,9 +50,8 @@
 #include <asm/fpu.h>
 #include <asm/fpu_emulator.h>
 #include <asm/idle.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 #include <asm/mips-r2-to-r6-emul.h>
-#include <asm/mips-cm.h>
 #include <asm/mipsregs.h>
 #include <asm/mipsmtregs.h>
 #include <asm/module.h>
@@ -734,8 +733,7 @@ void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr,
 		si.si_code = FPE_FLTUND;
 	else if (fcr31 & FPU_CSR_INE_X)
 		si.si_code = FPE_FLTRES;
-	else
-		return; /* Broken hardware? */
+
 	force_sig_info(SIGFPE, &si, tsk);
 }
 
@@ -1673,7 +1671,7 @@ static inline void parity_protection_init(void)
 		/* Probe L2 ECC support */
 		gcr_ectl = read_gcr_err_control();
 
-		if (!(gcr_ectl & CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT_MSK) ||
+		if (!(gcr_ectl & CM_GCR_ERR_CONTROL_L2_ECC_SUPPORT) ||
 		    !(cp0_ectl & ERRCTL_PE)) {
 			/*
 			 * One of L1 or L2 ECC checking isn't supported,
@@ -1693,12 +1691,12 @@ static inline void parity_protection_init(void)
 
 		/* Configure L2 ECC checking */
 		if (l2parity)
-			gcr_ectl |= CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK;
+			gcr_ectl |= CM_GCR_ERR_CONTROL_L2_ECC_EN;
 		else
-			gcr_ectl &= ~CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK;
+			gcr_ectl &= ~CM_GCR_ERR_CONTROL_L2_ECC_EN;
 		write_gcr_err_control(gcr_ectl);
 		gcr_ectl = read_gcr_err_control();
-		gcr_ectl &= CM_GCR_ERR_CONTROL_L2_ECC_EN_MSK;
+		gcr_ectl &= CM_GCR_ERR_CONTROL_L2_ECC_EN;
 		WARN_ON(!!gcr_ectl != l2parity);
 
 		pr_info("Cache parity protection %sabled\n",
@@ -2428,21 +2426,6 @@ void __init trap_init(void)
 	set_except_vector(EXCCODE_TR, handle_tr);
 	set_except_vector(EXCCODE_MSAFPE, handle_msa_fpe);
 
-	if (current_cpu_type() == CPU_R6000 ||
-	    current_cpu_type() == CPU_R6000A) {
-		/*
-		 * The R6000 is the only R-series CPU that features a machine
-		 * check exception (similar to the R4000 cache error) and
-		 * unaligned ldc1/sdc1 exception.  The handlers have not been
-		 * written yet.	 Well, anyway there is no R6000 machine on the
-		 * current list of targets for Linux/MIPS.
-		 * (Duh, crap, there is someone with a triple R6k machine)
-		 */
-		//set_except_vector(14, handle_mc);
-		//set_except_vector(15, handle_ndc);
-	}
-
-
 	if (board_nmi_handler_setup)
 		board_nmi_handler_setup();
 
diff --git a/arch/mips/kernel/unaligned.c b/arch/mips/kernel/unaligned.c
index 5eaf2578ac04..2d0b912f9e3e 100644
--- a/arch/mips/kernel/unaligned.c
+++ b/arch/mips/kernel/unaligned.c
@@ -1378,7 +1378,7 @@ sigill:
 const int reg16to32[] = { 16, 17, 2, 3, 4, 5, 6, 7 };
 
 /* Recode table from 16-bit STORE register notation to 32-bit GPR. */
-const int reg16to32st[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
+static const int reg16to32st[] = { 0, 17, 2, 3, 4, 5, 6, 7 };
 
 static void emulate_load_store_microMIPS(struct pt_regs *regs,
 					 void __user *addr)
diff --git a/arch/mips/kernel/uprobes.c b/arch/mips/kernel/uprobes.c
index e99e3fae5326..f7a0645ccb82 100644
--- a/arch/mips/kernel/uprobes.c
+++ b/arch/mips/kernel/uprobes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/highmem.h>
 #include <linux/kdebug.h>
 #include <linux/types.h>
diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c
index 093517e85a6c..019035d7225c 100644
--- a/arch/mips/kernel/vdso.c
+++ b/arch/mips/kernel/vdso.c
@@ -13,13 +13,13 @@
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/timekeeper_internal.h>
 
 #include <asm/abi.h>
+#include <asm/mips-cps.h>
 #include <asm/vdso.h>
 
 /* Kernel-provided data used by the VDSO. */
@@ -99,9 +99,8 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 {
 	struct mips_vdso_image *image = current->thread.abi->vdso;
 	struct mm_struct *mm = current->mm;
-	unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr;
+	unsigned long gic_size, vvar_size, size, base, data_addr, vdso_addr, gic_pfn;
 	struct vm_area_struct *vma;
-	struct resource gic_res;
 	int ret;
 
 	if (down_write_killable(&mm->mmap_sem))
@@ -125,7 +124,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 	 * only map a page even though the total area is 64K, as we only need
 	 * the counter registers at the start.
 	 */
-	gic_size = gic_present ? PAGE_SIZE : 0;
+	gic_size = mips_gic_present() ? PAGE_SIZE : 0;
 	vvar_size = gic_size + PAGE_SIZE;
 	size = vvar_size + image->size;
 
@@ -148,13 +147,9 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
 
 	/* Map GIC user page. */
 	if (gic_size) {
-		ret = gic_get_usm_range(&gic_res);
-		if (ret)
-			goto out;
+		gic_pfn = virt_to_phys(mips_gic_base + MIPS_GIC_USER_OFS) >> PAGE_SHIFT;
 
-		ret = io_remap_pfn_range(vma, base,
-					 gic_res.start >> PAGE_SHIFT,
-					 gic_size,
+		ret = io_remap_pfn_range(vma, base, gic_pfn, gic_size,
 					 pgprot_noncached(PAGE_READONLY));
 		if (ret)
 			goto out;
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 8ca2371aa684..971a504001c2 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/asm-offsets.h>
 #include <asm/thread_info.h>
 
diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig
index 50a722dfb236..b17447ce8873 100644
--- a/arch/mips/kvm/Kconfig
+++ b/arch/mips/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
diff --git a/arch/mips/kvm/Makefile b/arch/mips/kvm/Makefile
index 45d90f5d5177..01affc1d21c5 100644
--- a/arch/mips/kvm/Makefile
+++ b/arch/mips/kvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for KVM support for MIPS
 #
 
diff --git a/arch/mips/kvm/mips.c b/arch/mips/kvm/mips.c
index bce2a6431430..d535edc01434 100644
--- a/arch/mips/kvm/mips.c
+++ b/arch/mips/kvm/mips.c
@@ -514,7 +514,7 @@ int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu,
 
 	dvcpu->arch.wait = 0;
 
-	if (swait_active(&dvcpu->wq))
+	if (swq_has_sleeper(&dvcpu->wq))
 		swake_up(&dvcpu->wq);
 
 	return 0;
@@ -1179,7 +1179,7 @@ static void kvm_mips_comparecount_func(unsigned long data)
 	kvm_mips_callbacks->queue_timer_int(vcpu);
 
 	vcpu->arch.wait = 0;
-	if (swait_active(&vcpu->wq))
+	if (swq_has_sleeper(&vcpu->wq))
 		swake_up(&vcpu->wq);
 }
 
diff --git a/arch/mips/lantiq/Kconfig b/arch/mips/lantiq/Kconfig
index 177769dbb0e8..692ae85a3e3d 100644
--- a/arch/mips/lantiq/Kconfig
+++ b/arch/mips/lantiq/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if LANTIQ
 
 config SOC_TYPE_XWAY
@@ -17,6 +18,8 @@ config SOC_XWAY
 	bool "XWAY"
 	select SOC_TYPE_XWAY
 	select HW_HAS_PCI
+	select MFD_SYSCON
+	select MFD_CORE
 
 config SOC_FALCON
 	bool "FALCON"
diff --git a/arch/mips/lantiq/falcon/reset.c b/arch/mips/lantiq/falcon/reset.c
index 7a535d72f541..058b85578cf7 100644
--- a/arch/mips/lantiq/falcon/reset.c
+++ b/arch/mips/lantiq/falcon/reset.c
@@ -15,27 +15,14 @@
 
 #include <lantiq_soc.h>
 
-/* CPU0 Reset Source Register */
-#define SYS1_CPU0RS		0x0040
-/* reset cause mask */
-#define CPU0RS_MASK		0x0003
-/* CPU0 Boot Mode Register */
-#define SYS1_BM			0x00a0
-/* boot mode mask */
-#define BM_MASK			0x0005
-
-/* allow platform code to find out what surce we booted from */
+/*
+ * Dummy implementation.  Used to allow platform code to find out what
+ * source was booted from
+ */
 unsigned char ltq_boot_select(void)
 {
-	return ltq_sys1_r32(SYS1_BM) & BM_MASK;
-}
-
-/* allow the watchdog driver to find out what the boot reason was */
-int ltq_reset_cause(void)
-{
-	return ltq_sys1_r32(SYS1_CPU0RS) & CPU0RS_MASK;
+	return BS_SPI;
 }
-EXPORT_SYMBOL_GPL(ltq_reset_cause);
 
 #define BOOT_REG_BASE	(KSEG1 | 0x1F200000)
 #define BOOT_PW1_REG	(BOOT_REG_BASE | 0x20)
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index 33728b7af426..f0bc3312ed11 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -61,10 +61,6 @@
 /* we have a cascade of 8 irqs */
 #define MIPS_CPU_IRQ_CASCADE		8
 
-#ifdef CONFIG_MIPS_MT_SMP
-int gic_present;
-#endif
-
 static int exin_avail;
 static u32 ltq_eiu_irq[MAX_EIU];
 static void __iomem *ltq_icu_membase[MAX_IM];
diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 96773bed8a8a..9ff7ccde9de0 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -117,7 +117,7 @@ void __init prom_init(void)
 
 int __init plat_of_setup(void)
 {
-	return __dt_register_buses(soc_info.compatible, "simple-bus");
+	return of_platform_default_populate(NULL, NULL, NULL);
 }
 
 arch_initcall(plat_of_setup);
diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
index a2edc538f477..fbb0747c70b7 100644
--- a/arch/mips/lantiq/xway/Makefile
+++ b/arch/mips/lantiq/xway/Makefile
@@ -1,5 +1,3 @@
-obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
+obj-y := prom.o sysctrl.o clk.o dma.o gptu.o dcdc.o
 
 obj-y += vmmc.o
-
-obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
diff --git a/arch/mips/lantiq/xway/reset.c b/arch/mips/lantiq/xway/reset.c
deleted file mode 100644
index 83fd65d76e81..000000000000
--- a/arch/mips/lantiq/xway/reset.c
+++ /dev/null
@@ -1,387 +0,0 @@
-/*
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- *
- *  Copyright (C) 2010 John Crispin <john@phrozen.org>
- *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
- */
-
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/pm.h>
-#include <linux/export.h>
-#include <linux/delay.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <linux/reset-controller.h>
-
-#include <asm/reboot.h>
-
-#include <lantiq_soc.h>
-
-#include "../prom.h"
-
-/* reset request register */
-#define RCU_RST_REQ		0x0010
-/* reset status register */
-#define RCU_RST_STAT		0x0014
-/* vr9 gphy registers */
-#define RCU_GFS_ADD0_XRX200	0x0020
-#define RCU_GFS_ADD1_XRX200	0x0068
-/* xRX300 gphy registers */
-#define RCU_GFS_ADD0_XRX300	0x0020
-#define RCU_GFS_ADD1_XRX300	0x0058
-#define RCU_GFS_ADD2_XRX300	0x00AC
-/* xRX330 gphy registers */
-#define RCU_GFS_ADD0_XRX330	0x0020
-#define RCU_GFS_ADD1_XRX330	0x0058
-#define RCU_GFS_ADD2_XRX330	0x00AC
-#define RCU_GFS_ADD3_XRX330	0x0264
-
-/* xbar BE flag */
-#define RCU_AHB_ENDIAN          0x004C
-#define RCU_VR9_BE_AHB1S        0x00000008
-
-/* reboot bit */
-#define RCU_RD_GPHY0_XRX200	BIT(31)
-#define RCU_RD_SRST		BIT(30)
-#define RCU_RD_GPHY1_XRX200	BIT(29)
-/* xRX300 bits */
-#define RCU_RD_GPHY0_XRX300	BIT(31)
-#define RCU_RD_GPHY1_XRX300	BIT(29)
-#define RCU_RD_GPHY2_XRX300	BIT(28)
-/* xRX330 bits */
-#define RCU_RD_GPHY0_XRX330	BIT(31)
-#define RCU_RD_GPHY1_XRX330	BIT(29)
-#define RCU_RD_GPHY2_XRX330	BIT(28)
-#define RCU_RD_GPHY3_XRX330	BIT(10)
-
-/* reset cause */
-#define RCU_STAT_SHIFT		26
-/* boot selection */
-#define RCU_BOOT_SEL(x)		((x >> 18) & 0x7)
-#define RCU_BOOT_SEL_XRX200(x)	(((x >> 17) & 0xf) | ((x >> 8) & 0x10))
-
-/* dwc2 USB configuration registers */
-#define RCU_USB1CFG		0x0018
-#define RCU_USB2CFG		0x0034
-
-/* USB DMA endianness bits */
-#define RCU_USBCFG_HDSEL_BIT	BIT(11)
-#define RCU_USBCFG_HOST_END_BIT	BIT(10)
-#define RCU_USBCFG_SLV_END_BIT	BIT(9)
-
-/* USB reset bits */
-#define RCU_USBRESET		0x0010
-
-#define USBRESET_BIT		BIT(4)
-
-#define RCU_USBRESET2		0x0048
-
-#define USB1RESET_BIT		BIT(4)
-#define USB2RESET_BIT		BIT(5)
-
-#define RCU_CFG1A		0x0038
-#define RCU_CFG1B		0x003C
-
-/* USB PMU devices */
-#define PMU_AHBM		BIT(15)
-#define PMU_USB0		BIT(6)
-#define PMU_USB1		BIT(27)
-
-/* USB PHY PMU devices */
-#define PMU_USB0_P		BIT(0)
-#define PMU_USB1_P		BIT(26)
-
-/* remapped base addr of the reset control unit */
-static void __iomem *ltq_rcu_membase;
-static struct device_node *ltq_rcu_np;
-static DEFINE_SPINLOCK(ltq_rcu_lock);
-
-static void ltq_rcu_w32(uint32_t val, uint32_t reg_off)
-{
-	ltq_w32(val, ltq_rcu_membase + reg_off);
-}
-
-static uint32_t ltq_rcu_r32(uint32_t reg_off)
-{
-	return ltq_r32(ltq_rcu_membase + reg_off);
-}
-
-static void ltq_rcu_w32_mask(uint32_t clr, uint32_t set, uint32_t reg_off)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&ltq_rcu_lock, flags);
-	ltq_rcu_w32((ltq_rcu_r32(reg_off) & ~(clr)) | (set), reg_off);
-	spin_unlock_irqrestore(&ltq_rcu_lock, flags);
-}
-
-/* This function is used by the watchdog driver */
-int ltq_reset_cause(void)
-{
-	u32 val = ltq_rcu_r32(RCU_RST_STAT);
-	return val >> RCU_STAT_SHIFT;
-}
-EXPORT_SYMBOL_GPL(ltq_reset_cause);
-
-/* allow platform code to find out what source we booted from */
-unsigned char ltq_boot_select(void)
-{
-	u32 val = ltq_rcu_r32(RCU_RST_STAT);
-
-	if (of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200"))
-		return RCU_BOOT_SEL_XRX200(val);
-
-	return RCU_BOOT_SEL(val);
-}
-
-struct ltq_gphy_reset {
-	u32 rd;
-	u32 addr;
-};
-
-/* reset / boot a gphy */
-static struct ltq_gphy_reset xrx200_gphy[] = {
-	{RCU_RD_GPHY0_XRX200, RCU_GFS_ADD0_XRX200},
-	{RCU_RD_GPHY1_XRX200, RCU_GFS_ADD1_XRX200},
-};
-
-/* reset / boot a gphy */
-static struct ltq_gphy_reset xrx300_gphy[] = {
-	{RCU_RD_GPHY0_XRX300, RCU_GFS_ADD0_XRX300},
-	{RCU_RD_GPHY1_XRX300, RCU_GFS_ADD1_XRX300},
-	{RCU_RD_GPHY2_XRX300, RCU_GFS_ADD2_XRX300},
-};
-
-/* reset / boot a gphy */
-static struct ltq_gphy_reset xrx330_gphy[] = {
-	{RCU_RD_GPHY0_XRX330, RCU_GFS_ADD0_XRX330},
-	{RCU_RD_GPHY1_XRX330, RCU_GFS_ADD1_XRX330},
-	{RCU_RD_GPHY2_XRX330, RCU_GFS_ADD2_XRX330},
-	{RCU_RD_GPHY3_XRX330, RCU_GFS_ADD3_XRX330},
-};
-
-static void xrx200_gphy_boot_addr(struct ltq_gphy_reset *phy_regs,
-				  dma_addr_t dev_addr)
-{
-	ltq_rcu_w32_mask(0, phy_regs->rd, RCU_RST_REQ);
-	ltq_rcu_w32(dev_addr, phy_regs->addr);
-	ltq_rcu_w32_mask(phy_regs->rd, 0,  RCU_RST_REQ);
-}
-
-/* reset and boot a gphy. these phys only exist on xrx200 SoC */
-int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr)
-{
-	struct clk *clk;
-
-	if (!of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200")) {
-		dev_err(dev, "this SoC has no GPHY\n");
-		return -EINVAL;
-	}
-
-	if (of_machine_is_compatible("lantiq,vr9")) {
-		clk = clk_get_sys("1f203000.rcu", "gphy");
-		if (IS_ERR(clk))
-			return PTR_ERR(clk);
-		clk_enable(clk);
-	}
-
-	dev_info(dev, "booting GPHY%u firmware at %X\n", id, dev_addr);
-
-	if (of_machine_is_compatible("lantiq,vr9")) {
-		if (id >= ARRAY_SIZE(xrx200_gphy)) {
-			dev_err(dev, "%u is an invalid gphy id\n", id);
-			return -EINVAL;
-		}
-		xrx200_gphy_boot_addr(&xrx200_gphy[id], dev_addr);
-	} else if (of_machine_is_compatible("lantiq,ar10")) {
-		if (id >= ARRAY_SIZE(xrx300_gphy)) {
-			dev_err(dev, "%u is an invalid gphy id\n", id);
-			return -EINVAL;
-		}
-		xrx200_gphy_boot_addr(&xrx300_gphy[id], dev_addr);
-	} else if (of_machine_is_compatible("lantiq,grx390")) {
-		if (id >= ARRAY_SIZE(xrx330_gphy)) {
-			dev_err(dev, "%u is an invalid gphy id\n", id);
-			return -EINVAL;
-		}
-		xrx200_gphy_boot_addr(&xrx330_gphy[id], dev_addr);
-	}
-	return 0;
-}
-
-/* reset a io domain for u micro seconds */
-void ltq_reset_once(unsigned int module, ulong u)
-{
-	ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) | module, RCU_RST_REQ);
-	udelay(u);
-	ltq_rcu_w32(ltq_rcu_r32(RCU_RST_REQ) & ~module, RCU_RST_REQ);
-}
-
-static int ltq_assert_device(struct reset_controller_dev *rcdev,
-				unsigned long id)
-{
-	u32 val;
-
-	if (id < 8)
-		return -1;
-
-	val = ltq_rcu_r32(RCU_RST_REQ);
-	val |= BIT(id);
-	ltq_rcu_w32(val, RCU_RST_REQ);
-
-	return 0;
-}
-
-static int ltq_deassert_device(struct reset_controller_dev *rcdev,
-				  unsigned long id)
-{
-	u32 val;
-
-	if (id < 8)
-		return -1;
-
-	val = ltq_rcu_r32(RCU_RST_REQ);
-	val &= ~BIT(id);
-	ltq_rcu_w32(val, RCU_RST_REQ);
-
-	return 0;
-}
-
-static int ltq_reset_device(struct reset_controller_dev *rcdev,
-			       unsigned long id)
-{
-	ltq_assert_device(rcdev, id);
-	return ltq_deassert_device(rcdev, id);
-}
-
-static const struct reset_control_ops reset_ops = {
-	.reset = ltq_reset_device,
-	.assert = ltq_assert_device,
-	.deassert = ltq_deassert_device,
-};
-
-static struct reset_controller_dev reset_dev = {
-	.ops			= &reset_ops,
-	.owner			= THIS_MODULE,
-	.nr_resets		= 32,
-	.of_reset_n_cells	= 1,
-};
-
-void ltq_rst_init(void)
-{
-	reset_dev.of_node = of_find_compatible_node(NULL, NULL,
-						"lantiq,xway-reset");
-	if (!reset_dev.of_node)
-		pr_err("Failed to find reset controller node");
-	else
-		reset_controller_register(&reset_dev);
-}
-
-static void ltq_machine_restart(char *command)
-{
-	u32 val = ltq_rcu_r32(RCU_RST_REQ);
-
-	if (of_device_is_compatible(ltq_rcu_np, "lantiq,rcu-xrx200"))
-		val |= RCU_RD_GPHY1_XRX200 | RCU_RD_GPHY0_XRX200;
-
-	val |= RCU_RD_SRST;
-
-	local_irq_disable();
-	ltq_rcu_w32(val, RCU_RST_REQ);
-	unreachable();
-}
-
-static void ltq_machine_halt(void)
-{
-	local_irq_disable();
-	unreachable();
-}
-
-static void ltq_machine_power_off(void)
-{
-	local_irq_disable();
-	unreachable();
-}
-
-static void ltq_usb_init(void)
-{
-	/* Power for USB cores 1 & 2 */
-	ltq_pmu_enable(PMU_AHBM);
-	ltq_pmu_enable(PMU_USB0);
-	ltq_pmu_enable(PMU_USB1);
-
-	ltq_rcu_w32(ltq_rcu_r32(RCU_CFG1A) | BIT(0), RCU_CFG1A);
-	ltq_rcu_w32(ltq_rcu_r32(RCU_CFG1B) | BIT(0), RCU_CFG1B);
-
-	/* Enable USB PHY power for cores 1 & 2 */
-	ltq_pmu_enable(PMU_USB0_P);
-	ltq_pmu_enable(PMU_USB1_P);
-
-	/* Configure cores to host mode */
-	ltq_rcu_w32(ltq_rcu_r32(RCU_USB1CFG) & ~RCU_USBCFG_HDSEL_BIT,
-		RCU_USB1CFG);
-	ltq_rcu_w32(ltq_rcu_r32(RCU_USB2CFG) & ~RCU_USBCFG_HDSEL_BIT,
-		RCU_USB2CFG);
-
-	/* Select DMA endianness (Host-endian: big-endian) */
-	ltq_rcu_w32((ltq_rcu_r32(RCU_USB1CFG) & ~RCU_USBCFG_SLV_END_BIT)
-		| RCU_USBCFG_HOST_END_BIT, RCU_USB1CFG);
-	ltq_rcu_w32(ltq_rcu_r32((RCU_USB2CFG) & ~RCU_USBCFG_SLV_END_BIT)
-		| RCU_USBCFG_HOST_END_BIT, RCU_USB2CFG);
-
-	/* Hard reset USB state machines */
-	ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET) | USBRESET_BIT, RCU_USBRESET);
-	udelay(50 * 1000);
-	ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET) & ~USBRESET_BIT, RCU_USBRESET);
-
-	/* Soft reset USB state machines */
-	ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET2)
-		| USB1RESET_BIT | USB2RESET_BIT, RCU_USBRESET2);
-	udelay(50 * 1000);
-	ltq_rcu_w32(ltq_rcu_r32(RCU_USBRESET2)
-		& ~(USB1RESET_BIT | USB2RESET_BIT), RCU_USBRESET2);
-}
-
-static int __init mips_reboot_setup(void)
-{
-	struct resource res;
-
-	ltq_rcu_np = of_find_compatible_node(NULL, NULL, "lantiq,rcu-xway");
-	if (!ltq_rcu_np)
-		ltq_rcu_np = of_find_compatible_node(NULL, NULL,
-							"lantiq,rcu-xrx200");
-
-	/* check if all the reset register range is available */
-	if (!ltq_rcu_np)
-		panic("Failed to load reset resources from devicetree");
-
-	if (of_address_to_resource(ltq_rcu_np, 0, &res))
-		panic("Failed to get rcu memory range");
-
-	if (!request_mem_region(res.start, resource_size(&res), res.name))
-		pr_err("Failed to request rcu memory");
-
-	ltq_rcu_membase = ioremap_nocache(res.start, resource_size(&res));
-	if (!ltq_rcu_membase)
-		panic("Failed to remap core memory");
-
-	if (of_machine_is_compatible("lantiq,ar9") ||
-	    of_machine_is_compatible("lantiq,vr9"))
-		ltq_usb_init();
-
-	if (of_machine_is_compatible("lantiq,vr9"))
-		ltq_rcu_w32(ltq_rcu_r32(RCU_AHB_ENDIAN) | RCU_VR9_BE_AHB1S,
-			    RCU_AHB_ENDIAN);
-
-	_machine_restart = ltq_machine_restart;
-	_machine_halt = ltq_machine_halt;
-	pm_power_off = ltq_machine_power_off;
-
-	return 0;
-}
-
-arch_initcall(mips_reboot_setup);
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index 95bec460b651..7611c3013793 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -145,15 +145,7 @@ static u32 pmu_clk_cr_b[] = {
 #define pmu_w32(x, y)	ltq_w32((x), pmu_membase + (y))
 #define pmu_r32(x)	ltq_r32(pmu_membase + (x))
 
-#define XBAR_ALWAYS_LAST	0x430
-#define XBAR_FPI_BURST_EN	BIT(1)
-#define XBAR_AHB_BURST_EN	BIT(2)
-
-#define xbar_w32(x, y)	ltq_w32((x), ltq_xbar_membase + (y))
-#define xbar_r32(x)	ltq_r32(ltq_xbar_membase + (x))
-
 static void __iomem *pmu_membase;
-static void __iomem *ltq_xbar_membase;
 void __iomem *ltq_cgu_membase;
 void __iomem *ltq_ebu_membase;
 
@@ -293,16 +285,6 @@ static void pci_ext_disable(struct clk *clk)
 	ltq_cgu_w32((1 << 31) | (1 << 30), pcicr);
 }
 
-static void xbar_fpi_burst_disable(void)
-{
-	u32 reg;
-
-	/* bit 1 as 1 --burst; bit 1 as 0 -- single */
-	reg = xbar_r32(XBAR_ALWAYS_LAST);
-	reg &= ~XBAR_FPI_BURST_EN;
-	xbar_w32(reg, XBAR_ALWAYS_LAST);
-}
-
 /* enable a clockout source */
 static int clkout_enable(struct clk *clk)
 {
@@ -459,26 +441,6 @@ void __init ltq_soc_init(void)
 	if (!pmu_membase || !ltq_cgu_membase || !ltq_ebu_membase)
 		panic("Failed to remap core resources");
 
-	if (of_machine_is_compatible("lantiq,vr9")) {
-		struct resource res_xbar;
-		struct device_node *np_xbar =
-				of_find_compatible_node(NULL, NULL,
-							"lantiq,xbar-xway");
-
-		if (!np_xbar)
-			panic("Failed to load xbar nodes from devicetree");
-		if (of_address_to_resource(np_xbar, 0, &res_xbar))
-			panic("Failed to get xbar resources");
-		if (!request_mem_region(res_xbar.start, resource_size(&res_xbar),
-			res_xbar.name))
-			panic("Failed to get xbar resources");
-
-		ltq_xbar_membase = ioremap_nocache(res_xbar.start,
-						   resource_size(&res_xbar));
-		if (!ltq_xbar_membase)
-			panic("Failed to remap xbar resources");
-	}
-
 	/* make sure to unprotect the memory region where flash is located */
 	ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_BUSCON0) & ~EBU_WRDIS, LTQ_EBU_BUSCON0);
 
@@ -507,8 +469,8 @@ void __init ltq_soc_init(void)
 
 	if (of_machine_is_compatible("lantiq,grx390") ||
 	    of_machine_is_compatible("lantiq,ar10")) {
-		clkdev_add_pmu("1e101000.usb", "phy", 1, 2, PMU_ANALOG_USB0_P);
-		clkdev_add_pmu("1e106000.usb", "phy", 1, 2, PMU_ANALOG_USB1_P);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB0_P);
+		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 2, PMU_ANALOG_USB1_P);
 		/* rc 0 */
 		clkdev_add_pmu("1d900000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE0_P);
 		clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
@@ -528,8 +490,8 @@ void __init ltq_soc_init(void)
 		else
 			clkdev_add_static(CLOCK_133M, CLOCK_133M,
 						CLOCK_133M, CLOCK_133M);
-		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
-		clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
 		clkdev_add_pmu("1e180000.etop", "ppe", 1, 0, PMU_PPE);
 		clkdev_add_cgu("1e180000.etop", "ephycgu", CGU_EPHY);
 		clkdev_add_pmu("1e180000.etop", "ephy", 1, 0, PMU_EPHY);
@@ -538,8 +500,8 @@ void __init ltq_soc_init(void)
 	} else if (of_machine_is_compatible("lantiq,grx390")) {
 		clkdev_add_static(ltq_grx390_cpu_hz(), ltq_grx390_fpi_hz(),
 				  ltq_grx390_fpi_hz(), ltq_grx390_pp32_hz());
-		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
-		clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
 		/* rc 2 */
 		clkdev_add_pmu("1a800000.pcie", "phy", 1, 2, PMU_ANALOG_PCIE2_P);
 		clkdev_add_pmu("1a800000.pcie", "msi", 1, 1, PMU1_PCIE2_MSI);
@@ -551,22 +513,23 @@ void __init ltq_soc_init(void)
 	} else if (of_machine_is_compatible("lantiq,ar10")) {
 		clkdev_add_static(ltq_ar10_cpu_hz(), ltq_ar10_fpi_hz(),
 				  ltq_ar10_fpi_hz(), ltq_ar10_pp32_hz());
-		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
-		clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
 		clkdev_add_pmu("1e108000.eth", NULL, 0, 0, PMU_SWITCH |
 			       PMU_PPE_DP | PMU_PPE_TC);
 		clkdev_add_pmu("1da00000.usif", "NULL", 1, 0, PMU_USIF);
-		clkdev_add_pmu("1f203000.rcu", "gphy", 1, 0, PMU_GPHY);
+		clkdev_add_pmu("1f203020.gphy", NULL, 1, 0, PMU_GPHY);
+		clkdev_add_pmu("1f203068.gphy", NULL, 1, 0, PMU_GPHY);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 		clkdev_add_pmu("1e116000.mei", "afe", 1, 2, PMU_ANALOG_DSL_AFE);
 		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
 	} else if (of_machine_is_compatible("lantiq,vr9")) {
 		clkdev_add_static(ltq_vr9_cpu_hz(), ltq_vr9_fpi_hz(),
 				ltq_vr9_fpi_hz(), ltq_vr9_pp32_hz());
-		clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
-		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0 | PMU_AHBM);
-		clkdev_add_pmu("1e106000.usb", "phy", 1, 0, PMU_USB1_P);
-		clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1 | PMU_AHBM);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0 | PMU_AHBM);
+		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1 | PMU_AHBM);
 		clkdev_add_pmu("1d900000.pcie", "phy", 1, 1, PMU1_PCIE_PHY);
 		clkdev_add_pmu("1d900000.pcie", "bus", 1, 0, PMU_PCIE_CLK);
 		clkdev_add_pmu("1d900000.pcie", "msi", 1, 1, PMU1_PCIE_MSI);
@@ -579,17 +542,18 @@ void __init ltq_soc_init(void)
 				PMU_SWITCH | PMU_PPE_DPLUS | PMU_PPE_DPLUM |
 				PMU_PPE_EMA | PMU_PPE_TC | PMU_PPE_SLL01 |
 				PMU_PPE_QSB | PMU_PPE_TOP);
-		clkdev_add_pmu("1f203000.rcu", "gphy", 0, 0, PMU_GPHY);
+		clkdev_add_pmu("1f203020.gphy", NULL, 0, 0, PMU_GPHY);
+		clkdev_add_pmu("1f203068.gphy", NULL, 0, 0, PMU_GPHY);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
 	} else if (of_machine_is_compatible("lantiq,ar9")) {
 		clkdev_add_static(ltq_ar9_cpu_hz(), ltq_ar9_fpi_hz(),
 				ltq_ar9_fpi_hz(), CLOCK_250M);
-		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
-		clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
-		clkdev_add_pmu("1e106000.usb", "ctl", 1, 0, PMU_USB1);
-		clkdev_add_pmu("1e106000.usb", "phy", 1, 0, PMU_USB1_P);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1e101000.usb", "otg", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1f203034.usb2-phy", "phy", 1, 0, PMU_USB1_P);
+		clkdev_add_pmu("1e106000.usb", "otg", 1, 0, PMU_USB1);
 		clkdev_add_pmu("1e180000.etop", "switch", 1, 0, PMU_SWITCH);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
@@ -598,14 +562,11 @@ void __init ltq_soc_init(void)
 	} else {
 		clkdev_add_static(ltq_danube_cpu_hz(), ltq_danube_fpi_hz(),
 				ltq_danube_fpi_hz(), ltq_danube_pp32_hz());
-		clkdev_add_pmu("1e101000.usb", "ctl", 1, 0, PMU_USB0);
-		clkdev_add_pmu("1e101000.usb", "phy", 1, 0, PMU_USB0_P);
+		clkdev_add_pmu("1f203018.usb2-phy", "ctrl", 1, 0, PMU_USB0);
+		clkdev_add_pmu("1f203018.usb2-phy", "phy", 1, 0, PMU_USB0_P);
 		clkdev_add_pmu("1e103000.sdio", NULL, 1, 0, PMU_SDIO);
 		clkdev_add_pmu("1e103100.deu", NULL, 1, 0, PMU_DEU);
 		clkdev_add_pmu("1e116000.mei", "dfe", 1, 0, PMU_DFE);
 		clkdev_add_pmu("1e100400.serial", NULL, 1, 0, PMU_ASC0);
 	}
-
-	if (of_machine_is_compatible("lantiq,vr9"))
-		xbar_fpi_burst_disable();
 }
diff --git a/arch/mips/lantiq/xway/xrx200_phy_fw.c b/arch/mips/lantiq/xway/xrx200_phy_fw.c
deleted file mode 100644
index f0a0f2d431b2..000000000000
--- a/arch/mips/lantiq/xway/xrx200_phy_fw.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * Lantiq XRX200 PHY Firmware Loader
- * Author: John Crispin
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- *
- *  Copyright (C) 2012 John Crispin <john@phrozen.org>
- */
-
-#include <linux/delay.h>
-#include <linux/dma-mapping.h>
-#include <linux/firmware.h>
-#include <linux/of_platform.h>
-
-#include <lantiq_soc.h>
-
-#define XRX200_GPHY_FW_ALIGN	(16 * 1024)
-
-static dma_addr_t xway_gphy_load(struct platform_device *pdev)
-{
-	const struct firmware *fw;
-	dma_addr_t dev_addr = 0;
-	const char *fw_name;
-	void *fw_addr;
-	size_t size;
-
-	if (of_get_property(pdev->dev.of_node, "firmware1", NULL) ||
-		of_get_property(pdev->dev.of_node, "firmware2", NULL)) {
-		switch (ltq_soc_type()) {
-		case SOC_TYPE_VR9:
-			if (of_property_read_string(pdev->dev.of_node,
-						    "firmware1", &fw_name)) {
-				dev_err(&pdev->dev,
-					"failed to load firmware filename\n");
-				return 0;
-			}
-			break;
-		case SOC_TYPE_VR9_2:
-			if (of_property_read_string(pdev->dev.of_node,
-						    "firmware2", &fw_name)) {
-				dev_err(&pdev->dev,
-					"failed to load firmware filename\n");
-				return 0;
-			}
-			break;
-		}
-	} else if (of_property_read_string(pdev->dev.of_node,
-					 "firmware", &fw_name)) {
-		dev_err(&pdev->dev, "failed to load firmware filename\n");
-		return 0;
-	}
-
-	dev_info(&pdev->dev, "requesting %s\n", fw_name);
-	if (request_firmware(&fw, fw_name, &pdev->dev)) {
-		dev_err(&pdev->dev, "failed to load firmware: %s\n", fw_name);
-		return 0;
-	}
-
-	/*
-	 * GPHY cores need the firmware code in a persistent and contiguous
-	 * memory area with a 16 kB boundary aligned start address
-	 */
-	size = fw->size + XRX200_GPHY_FW_ALIGN;
-
-	fw_addr = dma_alloc_coherent(&pdev->dev, size, &dev_addr, GFP_KERNEL);
-	if (fw_addr) {
-		fw_addr = PTR_ALIGN(fw_addr, XRX200_GPHY_FW_ALIGN);
-		dev_addr = ALIGN(dev_addr, XRX200_GPHY_FW_ALIGN);
-		memcpy(fw_addr, fw->data, fw->size);
-	} else {
-		dev_err(&pdev->dev, "failed to alloc firmware memory\n");
-	}
-
-	release_firmware(fw);
-	return dev_addr;
-}
-
-static int xway_phy_fw_probe(struct platform_device *pdev)
-{
-	dma_addr_t fw_addr;
-	struct property *pp;
-	unsigned char *phyids;
-	int i, ret = 0;
-
-	fw_addr = xway_gphy_load(pdev);
-	if (!fw_addr)
-		return -EINVAL;
-	pp = of_find_property(pdev->dev.of_node, "phys", NULL);
-	if (!pp)
-		return -ENOENT;
-	phyids = pp->value;
-	for (i = 0; i < pp->length && !ret; i++)
-		ret = xrx200_gphy_boot(&pdev->dev, phyids[i], fw_addr);
-	if (!ret)
-		mdelay(100);
-	return ret;
-}
-
-static const struct of_device_id xway_phy_match[] = {
-	{ .compatible = "lantiq,phy-xrx200" },
-	{},
-};
-
-static struct platform_driver xway_phy_driver = {
-	.probe = xway_phy_fw_probe,
-	.driver = {
-		.name = "phy-xrx200",
-		.of_match_table = xway_phy_match,
-	},
-};
-builtin_platform_driver(xway_phy_driver);
diff --git a/arch/mips/lasat/Kconfig b/arch/mips/lasat/Kconfig
index 8776d0a34274..11b89e94b835 100644
--- a/arch/mips/lasat/Kconfig
+++ b/arch/mips/lasat/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PICVUE
 	tristate "PICVUE LCD display driver"
 	depends on LASAT
diff --git a/arch/mips/lasat/Makefile b/arch/mips/lasat/Makefile
index 869bd3b37c17..1789b227ef20 100644
--- a/arch/mips/lasat/Makefile
+++ b/arch/mips/lasat/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the LASAT specific kernel interface routines under Linux.
 #
diff --git a/arch/mips/lasat/at93c.c b/arch/mips/lasat/at93c.c
index 4e272a2622a4..f895fe94b937 100644
--- a/arch/mips/lasat/at93c.c
+++ b/arch/mips/lasat/at93c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Atmel AT93C46 serial eeprom driver
  *
diff --git a/arch/mips/lasat/at93c.h b/arch/mips/lasat/at93c.h
index cfe2f99b1d44..7a99a02d81d0 100644
--- a/arch/mips/lasat/at93c.h
+++ b/arch/mips/lasat/at93c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Atmel AT93C46 serial eeprom driver
  *
diff --git a/arch/mips/lasat/ds1603.c b/arch/mips/lasat/ds1603.c
index c6fd96ff118d..8bd5cf820eed 100644
--- a/arch/mips/lasat/ds1603.c
+++ b/arch/mips/lasat/ds1603.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dallas Semiconductors 1603 RTC driver
  *
diff --git a/arch/mips/lasat/ds1603.h b/arch/mips/lasat/ds1603.h
index 3e718b1cca02..00987d3bdc21 100644
--- a/arch/mips/lasat/ds1603.h
+++ b/arch/mips/lasat/ds1603.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Dallas Semiconductors 1603 RTC driver
  *
diff --git a/arch/mips/lasat/image/Makefile b/arch/mips/lasat/image/Makefile
index fd32075679c6..9ab1326f57c9 100644
--- a/arch/mips/lasat/image/Makefile
+++ b/arch/mips/lasat/image/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # MAKEFILE FOR THE MIPS LINUX BOOTLOADER AND ROM DEBUGGER
 #
diff --git a/arch/mips/lasat/image/head.S b/arch/mips/lasat/image/head.S
index 41babbe43a8e..1a27312d4c2e 100644
--- a/arch/mips/lasat/image/head.S
+++ b/arch/mips/lasat/image/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/lasat/head.h>
 
 	.text
diff --git a/arch/mips/lasat/lasat_models.h b/arch/mips/lasat/lasat_models.h
index e1cbd26ae1b3..474e57342484 100644
--- a/arch/mips/lasat/lasat_models.h
+++ b/arch/mips/lasat/lasat_models.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Model description tables
  */
diff --git a/arch/mips/lasat/picvue.h b/arch/mips/lasat/picvue.h
index d0119fca3862..161d3bf50811 100644
--- a/arch/mips/lasat/picvue.h
+++ b/arch/mips/lasat/picvue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Picvue PVC160206 display driver
  *
diff --git a/arch/mips/lasat/prom.c b/arch/mips/lasat/prom.c
index 20fde19a5fbf..17e15b50a551 100644
--- a/arch/mips/lasat/prom.c
+++ b/arch/mips/lasat/prom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PROM interface routines.
  */
diff --git a/arch/mips/lasat/prom.h b/arch/mips/lasat/prom.h
index 337acbc27442..3d1df853e9d3 100644
--- a/arch/mips/lasat/prom.h
+++ b/arch/mips/lasat/prom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PROM_H
 #define __PROM_H
 
diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile
index a37fe3d1ee2f..78c2affeabf8 100644
--- a/arch/mips/lib/Makefile
+++ b/arch/mips/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for MIPS-specific library files..
 #
@@ -6,7 +7,7 @@ lib-y	+= bitops.o csum_partial.o delay.o memcpy.o memset.o \
 	   mips-atomic.o strncpy_user.o \
 	   strnlen_user.o uncached.o
 
-obj-y			+= iomap.o
+obj-y			+= iomap.o iomap_copy.o
 obj-$(CONFIG_PCI)	+= iomap-pci.o
 lib-$(CONFIG_GENERIC_CSUM)	:= $(filter-out csum_partial.o, $(lib-y))
 
diff --git a/arch/mips/lib/ashldi3.c b/arch/mips/lib/ashldi3.c
index c3e22053d13e..24cd6903e797 100644
--- a/arch/mips/lib/ashldi3.c
+++ b/arch/mips/lib/ashldi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/mips/lib/ashrdi3.c b/arch/mips/lib/ashrdi3.c
index 17456024873d..23f5295af51e 100644
--- a/arch/mips/lib/ashrdi3.c
+++ b/arch/mips/lib/ashrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/mips/lib/bswapdi.c b/arch/mips/lib/bswapdi.c
index a8114148f82a..fcef74084492 100644
--- a/arch/mips/lib/bswapdi.c
+++ b/arch/mips/lib/bswapdi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/compiler.h>
 
diff --git a/arch/mips/lib/bswapsi.c b/arch/mips/lib/bswapsi.c
index 106fd978317d..22d8e4f6d66e 100644
--- a/arch/mips/lib/bswapsi.c
+++ b/arch/mips/lib/bswapsi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/compiler.h>
 
diff --git a/arch/mips/lib/cmpdi2.c b/arch/mips/lib/cmpdi2.c
index 9d849d8743c9..93cfc785927d 100644
--- a/arch/mips/lib/cmpdi2.c
+++ b/arch/mips/lib/cmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/mips/lib/delay.c b/arch/mips/lib/delay.c
index 2307a3cb2714..68c495ed71e3 100644
--- a/arch/mips/lib/delay.c
+++ b/arch/mips/lib/delay.c
@@ -8,6 +8,7 @@
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  * Copyright (C) 2007, 2014 Maciej W. Rozycki
  */
+#include <linux/delay.h>
 #include <linux/export.h>
 #include <linux/param.h>
 #include <linux/smp.h>
diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c
index 6eb50a7137db..781ad96b78c4 100644
--- a/arch/mips/lib/dump_tlb.c
+++ b/arch/mips/lib/dump_tlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dump R4x00 TLB for debugging purposes.
  *
diff --git a/arch/mips/lib/iomap-pci.c b/arch/mips/lib/iomap-pci.c
index 8ed3f25a9047..4850509c5534 100644
--- a/arch/mips/lib/iomap-pci.c
+++ b/arch/mips/lib/iomap-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement the default iomap interfaces
  *
diff --git a/arch/mips/lib/iomap.c b/arch/mips/lib/iomap.c
index 9daa92428e23..9b31653f318c 100644
--- a/arch/mips/lib/iomap.c
+++ b/arch/mips/lib/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement the default iomap interfaces
  *
diff --git a/arch/mips/lib/iomap_copy.c b/arch/mips/lib/iomap_copy.c
new file mode 100644
index 000000000000..368bb38267c5
--- /dev/null
+++ b/arch/mips/lib/iomap_copy.c
@@ -0,0 +1,42 @@
+/*
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/export.h>
+#include <linux/io.h>
+
+/**
+ * __ioread64_copy - copy data from MMIO space, in 64-bit units
+ * @to: destination (must be 64-bit aligned)
+ * @from: source, in MMIO space (must be 64-bit aligned)
+ * @count: number of 64-bit quantities to copy
+ *
+ * Copy data from MMIO space to kernel space, in units of 32 or 64 bits at a
+ * time.  Order of access is not guaranteed, nor is a memory barrier
+ * performed afterwards.
+ */
+void __ioread64_copy(void *to, const void __iomem *from, size_t count)
+{
+#ifdef CONFIG_64BIT
+	u64 *dst = to;
+	const u64 __iomem *src = from;
+	const u64 __iomem *end = src + count;
+
+	while (src < end)
+		*dst++ = __raw_readq(src++);
+#else
+	__ioread32_copy(to, from, count * 2);
+#endif
+}
+EXPORT_SYMBOL_GPL(__ioread64_copy);
diff --git a/arch/mips/lib/libgcc.h b/arch/mips/lib/libgcc.h
index 05909d58e2fe..28002ed90c2c 100644
--- a/arch/mips/lib/libgcc.h
+++ b/arch/mips/lib/libgcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LIBGCC_H
 #define __ASM_LIBGCC_H
 
diff --git a/arch/mips/lib/lshrdi3.c b/arch/mips/lib/lshrdi3.c
index 221167c1be55..914b971aca3b 100644
--- a/arch/mips/lib/lshrdi3.c
+++ b/arch/mips/lib/lshrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/mips/lib/r3k_dump_tlb.c b/arch/mips/lib/r3k_dump_tlb.c
index 85b4086e553e..b97d9c5d8323 100644
--- a/arch/mips/lib/r3k_dump_tlb.c
+++ b/arch/mips/lib/r3k_dump_tlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dump R3000 TLB for debugging purposes.
  *
diff --git a/arch/mips/lib/ucmpdi2.c b/arch/mips/lib/ucmpdi2.c
index 08067fa538f2..c31c78ca4175 100644
--- a/arch/mips/lib/ucmpdi2.c
+++ b/arch/mips/lib/ucmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 
 #include "libgcc.h"
diff --git a/arch/mips/loongson32/Kconfig b/arch/mips/loongson32/Kconfig
index 3c0c2f2096cd..462b126f45aa 100644
--- a/arch/mips/loongson32/Kconfig
+++ b/arch/mips/loongson32/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MACH_LOONGSON32
 
 choice
diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c
index 100f23dfa438..ac584c5823d0 100644
--- a/arch/mips/loongson32/common/platform.c
+++ b/arch/mips/loongson32/common/platform.c
@@ -183,18 +183,20 @@ int ls1x_eth_mux_init(struct platform_device *pdev, void *priv)
 }
 
 static struct plat_stmmacenet_data ls1x_eth0_pdata = {
-	.bus_id		= 0,
-	.phy_addr	= -1,
+	.bus_id			= 0,
+	.phy_addr		= -1,
 #if defined(CONFIG_LOONGSON1_LS1B)
-	.interface	= PHY_INTERFACE_MODE_MII,
+	.interface		= PHY_INTERFACE_MODE_MII,
 #elif defined(CONFIG_LOONGSON1_LS1C)
-	.interface	= PHY_INTERFACE_MODE_RMII,
+	.interface		= PHY_INTERFACE_MODE_RMII,
 #endif
-	.mdio_bus_data	= &ls1x_mdio_bus_data,
-	.dma_cfg	= &ls1x_eth_dma_cfg,
-	.has_gmac	= 1,
-	.tx_coe		= 1,
-	.init		= ls1x_eth_mux_init,
+	.mdio_bus_data		= &ls1x_mdio_bus_data,
+	.dma_cfg		= &ls1x_eth_dma_cfg,
+	.has_gmac		= 1,
+	.tx_coe			= 1,
+	.rx_queues_to_use	= 1,
+	.tx_queues_to_use	= 1,
+	.init			= ls1x_eth_mux_init,
 };
 
 static struct resource ls1x_eth0_resources[] = {
@@ -222,14 +224,16 @@ struct platform_device ls1x_eth0_pdev = {
 
 #ifdef CONFIG_LOONGSON1_LS1B
 static struct plat_stmmacenet_data ls1x_eth1_pdata = {
-	.bus_id		= 1,
-	.phy_addr	= -1,
-	.interface	= PHY_INTERFACE_MODE_MII,
-	.mdio_bus_data	= &ls1x_mdio_bus_data,
-	.dma_cfg	= &ls1x_eth_dma_cfg,
-	.has_gmac	= 1,
-	.tx_coe		= 1,
-	.init		= ls1x_eth_mux_init,
+	.bus_id			= 1,
+	.phy_addr		= -1,
+	.interface		= PHY_INTERFACE_MODE_MII,
+	.mdio_bus_data		= &ls1x_mdio_bus_data,
+	.dma_cfg		= &ls1x_eth_dma_cfg,
+	.has_gmac		= 1,
+	.tx_coe			= 1,
+	.rx_queues_to_use	= 1,
+	.tx_queues_to_use	= 1,
+	.init			= ls1x_eth_mux_init,
 };
 
 static struct resource ls1x_eth1_resources[] = {
diff --git a/arch/mips/loongson64/Kconfig b/arch/mips/loongson64/Kconfig
index 8e6e292675b2..0d249fc3cfe9 100644
--- a/arch/mips/loongson64/Kconfig
+++ b/arch/mips/loongson64/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MACH_LOONGSON64
 
 choice
diff --git a/arch/mips/loongson64/common/Makefile b/arch/mips/loongson64/common/Makefile
index 074d9cb15cd2..8235ac7eac95 100644
--- a/arch/mips/loongson64/common/Makefile
+++ b/arch/mips/loongson64/common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for loongson based machines.
 #
diff --git a/arch/mips/loongson64/common/dma-swiotlb.c b/arch/mips/loongson64/common/dma-swiotlb.c
index 34486c138206..ef07740cee61 100644
--- a/arch/mips/loongson64/common/dma-swiotlb.c
+++ b/arch/mips/loongson64/common/dma-swiotlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/dma-mapping.h>
diff --git a/arch/mips/loongson64/lemote-2f/clock.c b/arch/mips/loongson64/lemote-2f/clock.c
index a78fb657068c..8281334df9c8 100644
--- a/arch/mips/loongson64/lemote-2f/clock.c
+++ b/arch/mips/loongson64/lemote-2f/clock.c
@@ -80,6 +80,9 @@ EXPORT_SYMBOL(clk_disable);
 
 unsigned long clk_get_rate(struct clk *clk)
 {
+	if (!clk)
+		return 0;
+
 	return (unsigned long)clk->rate;
 }
 EXPORT_SYMBOL(clk_get_rate);
diff --git a/arch/mips/loongson64/loongson-3/acpi_init.c b/arch/mips/loongson64/loongson-3/acpi_init.c
index dbdad79ead8f..8d7c119ddf91 100644
--- a/arch/mips/loongson64/loongson-3/acpi_init.c
+++ b/arch/mips/loongson64/loongson-3/acpi_init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/io.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
diff --git a/arch/mips/loongson64/loongson-3/hpet.c b/arch/mips/loongson64/loongson-3/hpet.c
index 4df9d4b7356a..ed15430ad64f 100644
--- a/arch/mips/loongson64/loongson-3/hpet.c
+++ b/arch/mips/loongson64/loongson-3/hpet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/percpu.h>
diff --git a/arch/mips/loongson64/loongson-3/irq.c b/arch/mips/loongson64/loongson-3/irq.c
index 7202e52cd046..cbeb20f9fc95 100644
--- a/arch/mips/loongson64/loongson-3/irq.c
+++ b/arch/mips/loongson64/loongson-3/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <loongson.h>
 #include <irq.h>
 #include <linux/interrupt.h>
diff --git a/arch/mips/loongson64/loongson-3/smp.c b/arch/mips/loongson64/loongson-3/smp.c
index b7a355c3c408..8501109bb0f0 100644
--- a/arch/mips/loongson64/loongson-3/smp.c
+++ b/arch/mips/loongson64/loongson-3/smp.c
@@ -319,8 +319,8 @@ static void loongson3_init_secondary(void)
 		loongson3_ipi_write32(0xffffffff, ipi_en0_regs[cpu_logical_map(i)]);
 
 	per_cpu(cpu_state, cpu) = CPU_ONLINE;
-	cpu_data[cpu].core =
-		cpu_logical_map(cpu) % loongson_sysconf.cores_per_package;
+	cpu_set_core(&cpu_data[cpu],
+		     cpu_logical_map(cpu) % loongson_sysconf.cores_per_package);
 	cpu_data[cpu].package =
 		cpu_logical_map(cpu) / loongson_sysconf.cores_per_package;
 
@@ -386,7 +386,8 @@ static void __init loongson3_smp_setup(void)
 	ipi_status0_regs_init();
 	ipi_en0_regs_init();
 	ipi_mailbox_buf_init();
-	cpu_data[0].core = cpu_logical_map(0) % loongson_sysconf.cores_per_package;
+	cpu_set_core(&cpu_data[0],
+		     cpu_logical_map(0) % loongson_sysconf.cores_per_package);
 	cpu_data[0].package = cpu_logical_map(0) / loongson_sysconf.cores_per_package;
 }
 
@@ -399,7 +400,7 @@ static void __init loongson3_prepare_cpus(unsigned int max_cpus)
 /*
  * Setup the PC, SP, and GP of a secondary processor and start it runing!
  */
-static void loongson3_boot_secondary(int cpu, struct task_struct *idle)
+static int loongson3_boot_secondary(int cpu, struct task_struct *idle)
 {
 	unsigned long startargs[4];
 
@@ -422,6 +423,7 @@ static void loongson3_boot_secondary(int cpu, struct task_struct *idle)
 			(void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x8));
 	loongson3_ipi_write64(startargs[0],
 			(void *)(ipi_mailbox_buf[cpu_logical_map(cpu)]+0x0));
+	return 0;
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
@@ -697,7 +699,7 @@ void play_dead(void)
 
 static int loongson3_disable_clock(unsigned int cpu)
 {
-	uint64_t core_id = cpu_data[cpu].core;
+	uint64_t core_id = cpu_core(&cpu_data[cpu]);
 	uint64_t package_id = cpu_data[cpu].package;
 
 	if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1) {
@@ -711,7 +713,7 @@ static int loongson3_disable_clock(unsigned int cpu)
 
 static int loongson3_enable_clock(unsigned int cpu)
 {
-	uint64_t core_id = cpu_data[cpu].core;
+	uint64_t core_id = cpu_core(&cpu_data[cpu]);
 	uint64_t package_id = cpu_data[cpu].package;
 
 	if ((read_c0_prid() & PRID_REV_MASK) == PRID_REV_LOONGSON3A_R1) {
@@ -734,7 +736,7 @@ early_initcall(register_loongson3_notifier);
 
 #endif
 
-struct plat_smp_ops loongson3_smp_ops = {
+const struct plat_smp_ops loongson3_smp_ops = {
 	.send_ipi_single = loongson3_send_ipi_single,
 	.send_ipi_mask = loongson3_send_ipi_mask,
 	.init_secondary = loongson3_init_secondary,
diff --git a/arch/mips/loongson64/loongson-3/smp.h b/arch/mips/loongson64/loongson-3/smp.h
index d98ff654b7d7..957bde81e0e4 100644
--- a/arch/mips/loongson64/loongson-3/smp.h
+++ b/arch/mips/loongson64/loongson-3/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LOONGSON_SMP_H_
 #define __LOONGSON_SMP_H_
 
diff --git a/arch/mips/math-emu/Makefile b/arch/mips/math-emu/Makefile
index e9bbc2a6526f..81d25ff328a7 100644
--- a/arch/mips/math-emu/Makefile
+++ b/arch/mips/math-emu/Makefile
@@ -1,12 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/MIPS kernel FPU emulation.
 #
 
 obj-y	+= cp1emu.o ieee754dp.o ieee754sp.o ieee754.o \
 	   dp_div.o dp_mul.o dp_sub.o dp_add.o dp_fsp.o dp_cmp.o dp_simple.o \
-	   dp_tint.o dp_fint.o dp_maddf.o dp_2008class.o dp_fmin.o dp_fmax.o \
+	   dp_tint.o dp_fint.o dp_rint.o dp_maddf.o dp_2008class.o dp_fmin.o \
+	   dp_fmax.o							     \
 	   sp_div.o sp_mul.o sp_sub.o sp_add.o sp_fdp.o sp_cmp.o sp_simple.o \
-	   sp_tint.o sp_fint.o sp_maddf.o sp_2008class.o sp_fmin.o sp_fmax.o \
+	   sp_tint.o sp_fint.o sp_rint.o sp_maddf.o sp_2008class.o sp_fmin.o \
+	   sp_fmax.o							     \
 	   dsemul.o
 
 lib-y	+= ieee754d.o \
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c
index f08a7b4facb9..16d9ef5a78c5 100644
--- a/arch/mips/math-emu/cp1emu.c
+++ b/arch/mips/math-emu/cp1emu.c
@@ -58,7 +58,7 @@ static int fpu_emu(struct pt_regs *, struct mips_fpu_struct *,
 	mips_instruction);
 
 static int fpux_emu(struct pt_regs *,
-	struct mips_fpu_struct *, mips_instruction, void *__user *);
+	struct mips_fpu_struct *, mips_instruction, void __user **);
 
 /* Control registers */
 
@@ -830,12 +830,12 @@ do {									\
 } while (0)
 
 #define DIFROMREG(di, x)						\
-	((di) = get_fpr64(&ctx->fpr[(x) & ~(cop1_64bit(xcp) == 0)], 0))
+	((di) = get_fpr64(&ctx->fpr[(x) & ~(cop1_64bit(xcp) ^ 1)], 0))
 
 #define DITOREG(di, x)							\
 do {									\
 	unsigned fpr, i;						\
-	fpr = (x) & ~(cop1_64bit(xcp) == 0);				\
+	fpr = (x) & ~(cop1_64bit(xcp) ^ 1);				\
 	set_fpr64(&ctx->fpr[fpr], 0, di);				\
 	for (i = 1; i < ARRAY_SIZE(ctx->fpr[x].val64); i++)		\
 		set_fpr64(&ctx->fpr[fpr], i, 0);			\
@@ -973,7 +973,7 @@ static inline void cop1_ctc(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
  */
 
 static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
-		struct mm_decoded_insn dec_insn, void *__user *fault_addr)
+		struct mm_decoded_insn dec_insn, void __user **fault_addr)
 {
 	unsigned long contpc = xcp->cp0_epc + dec_insn.pc_inc;
 	unsigned int cond, cbit, bit0;
@@ -1195,9 +1195,11 @@ emul:
 			bit0 = get_fpr32(fpr, 0) & 0x1;
 			switch (MIPSInst_RS(ir)) {
 			case bc1eqz_op:
+				MIPS_FPU_EMU_INC_STATS(bc1eqz);
 				cond = bit0 == 0;
 				break;
 			case bc1nez_op:
+				MIPS_FPU_EMU_INC_STATS(bc1nez);
 				cond = bit0 != 0;
 				break;
 			}
@@ -1230,6 +1232,7 @@ emul:
 				break;
 			}
 branch_common:
+			MIPS_FPU_EMU_INC_STATS(branches);
 			set_delay_slot(xcp);
 			if (cond) {
 				/*
@@ -1460,7 +1463,7 @@ DEF3OP(nmadd, dp, ieee754dp_mul, ieee754dp_add, ieee754dp_neg);
 DEF3OP(nmsub, dp, ieee754dp_mul, ieee754dp_sub, ieee754dp_neg);
 
 static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
-	mips_instruction ir, void *__user *fault_addr)
+	mips_instruction ir, void __user **fault_addr)
 {
 	unsigned rcsr = 0;	/* resulting csr */
 
@@ -1682,15 +1685,19 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 		switch (MIPSInst_FUNC(ir)) {
 			/* binary ops */
 		case fadd_op:
+			MIPS_FPU_EMU_INC_STATS(add_s);
 			handler.b = ieee754sp_add;
 			goto scopbop;
 		case fsub_op:
+			MIPS_FPU_EMU_INC_STATS(sub_s);
 			handler.b = ieee754sp_sub;
 			goto scopbop;
 		case fmul_op:
+			MIPS_FPU_EMU_INC_STATS(mul_s);
 			handler.b = ieee754sp_mul;
 			goto scopbop;
 		case fdiv_op:
+			MIPS_FPU_EMU_INC_STATS(div_s);
 			handler.b = ieee754sp_div;
 			goto scopbop;
 
@@ -1699,6 +1706,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_2_3_4_5_r)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(sqrt_s);
 			handler.u = ieee754sp_sqrt;
 			goto scopuop;
 
@@ -1711,6 +1719,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_4_5_64_r2_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(rsqrt_s);
 			handler.u = fpemu_sp_rsqrt;
 			goto scopuop;
 
@@ -1718,6 +1727,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_4_5_64_r2_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(recip_s);
 			handler.u = fpemu_sp_recip;
 			goto scopuop;
 
@@ -1754,6 +1764,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(seleqz_s);
 			SPFROMREG(rv.s, MIPSInst_FT(ir));
 			if (rv.w & 0x1)
 				rv.w = 0;
@@ -1765,6 +1776,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(selnez_s);
 			SPFROMREG(rv.s, MIPSInst_FT(ir));
 			if (rv.w & 0x1)
 				SPFROMREG(rv.s, MIPSInst_FS(ir));
@@ -1778,6 +1790,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(maddf_s);
 			SPFROMREG(ft, MIPSInst_FT(ir));
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			SPFROMREG(fd, MIPSInst_FD(ir));
@@ -1791,6 +1804,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(msubf_s);
 			SPFROMREG(ft, MIPSInst_FT(ir));
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			SPFROMREG(fd, MIPSInst_FD(ir));
@@ -1804,9 +1818,9 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(rint_s);
 			SPFROMREG(fs, MIPSInst_FS(ir));
-			rv.l = ieee754sp_tlong(fs);
-			rv.s = ieee754sp_flong(rv.l);
+			rv.s = ieee754sp_rint(fs);
 			goto copcsr;
 		}
 
@@ -1816,6 +1830,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(class_s);
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.w = ieee754sp_2008class(fs);
 			rfmt = w_fmt;
@@ -1828,6 +1843,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(min_s);
 			SPFROMREG(ft, MIPSInst_FT(ir));
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.s = ieee754sp_fmin(fs, ft);
@@ -1840,6 +1856,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(mina_s);
 			SPFROMREG(ft, MIPSInst_FT(ir));
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.s = ieee754sp_fmina(fs, ft);
@@ -1852,6 +1869,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(max_s);
 			SPFROMREG(ft, MIPSInst_FT(ir));
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.s = ieee754sp_fmax(fs, ft);
@@ -1864,6 +1882,7 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(maxa_s);
 			SPFROMREG(ft, MIPSInst_FT(ir));
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.s = ieee754sp_fmaxa(fs, ft);
@@ -1871,15 +1890,18 @@ static int fpu_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
 		}
 
 		case fabs_op:
+			MIPS_FPU_EMU_INC_STATS(abs_s);
 			handler.u = ieee754sp_abs;
 			goto scopuop;
 
 		case fneg_op:
+			MIPS_FPU_EMU_INC_STATS(neg_s);
 			handler.u = ieee754sp_neg;
 			goto scopuop;
 
 		case fmov_op:
 			/* an easy one */
+			MIPS_FPU_EMU_INC_STATS(mov_s);
 			SPFROMREG(rv.s, MIPSInst_FS(ir));
 			goto copcsr;
 
@@ -1922,12 +1944,14 @@ copcsr:
 			return SIGILL;	/* not defined */
 
 		case fcvtd_op:
+			MIPS_FPU_EMU_INC_STATS(cvt_d_s);
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.d = ieee754dp_fsp(fs);
 			rfmt = d_fmt;
 			goto copcsr;
 
 		case fcvtw_op:
+			MIPS_FPU_EMU_INC_STATS(cvt_w_s);
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.w = ieee754sp_tint(fs);
 			rfmt = w_fmt;
@@ -1940,6 +1964,15 @@ copcsr:
 			if (!cpu_has_mips_2_3_4_5_r)
 				return SIGILL;
 
+			if (MIPSInst_FUNC(ir) == fceil_op)
+				MIPS_FPU_EMU_INC_STATS(ceil_w_s);
+			if (MIPSInst_FUNC(ir) == ffloor_op)
+				MIPS_FPU_EMU_INC_STATS(floor_w_s);
+			if (MIPSInst_FUNC(ir) == fround_op)
+				MIPS_FPU_EMU_INC_STATS(round_w_s);
+			if (MIPSInst_FUNC(ir) == ftrunc_op)
+				MIPS_FPU_EMU_INC_STATS(trunc_w_s);
+
 			oldrm = ieee754_csr.rm;
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -1952,6 +1985,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(sel_s);
 			SPFROMREG(fd, MIPSInst_FD(ir));
 			if (fd.bits & 0x1)
 				SPFROMREG(rv.s, MIPSInst_FT(ir));
@@ -1963,6 +1997,7 @@ copcsr:
 			if (!cpu_has_mips_3_4_5_64_r2_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(cvt_l_s);
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.l = ieee754sp_tlong(fs);
 			rfmt = l_fmt;
@@ -1975,6 +2010,15 @@ copcsr:
 			if (!cpu_has_mips_3_4_5_64_r2_r6)
 				return SIGILL;
 
+			if (MIPSInst_FUNC(ir) == fceill_op)
+				MIPS_FPU_EMU_INC_STATS(ceil_l_s);
+			if (MIPSInst_FUNC(ir) == ffloorl_op)
+				MIPS_FPU_EMU_INC_STATS(floor_l_s);
+			if (MIPSInst_FUNC(ir) == froundl_op)
+				MIPS_FPU_EMU_INC_STATS(round_l_s);
+			if (MIPSInst_FUNC(ir) == ftruncl_op)
+				MIPS_FPU_EMU_INC_STATS(trunc_l_s);
+
 			oldrm = ieee754_csr.rm;
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -2016,15 +2060,19 @@ copcsr:
 		switch (MIPSInst_FUNC(ir)) {
 			/* binary ops */
 		case fadd_op:
+			MIPS_FPU_EMU_INC_STATS(add_d);
 			handler.b = ieee754dp_add;
 			goto dcopbop;
 		case fsub_op:
+			MIPS_FPU_EMU_INC_STATS(sub_d);
 			handler.b = ieee754dp_sub;
 			goto dcopbop;
 		case fmul_op:
+			MIPS_FPU_EMU_INC_STATS(mul_d);
 			handler.b = ieee754dp_mul;
 			goto dcopbop;
 		case fdiv_op:
+			MIPS_FPU_EMU_INC_STATS(div_d);
 			handler.b = ieee754dp_div;
 			goto dcopbop;
 
@@ -2033,6 +2081,7 @@ copcsr:
 			if (!cpu_has_mips_2_3_4_5_r)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(sqrt_d);
 			handler.u = ieee754dp_sqrt;
 			goto dcopuop;
 		/*
@@ -2044,12 +2093,14 @@ copcsr:
 			if (!cpu_has_mips_4_5_64_r2_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(rsqrt_d);
 			handler.u = fpemu_dp_rsqrt;
 			goto dcopuop;
 		case frecip_op:
 			if (!cpu_has_mips_4_5_64_r2_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(recip_d);
 			handler.u = fpemu_dp_recip;
 			goto dcopuop;
 		case fmovc_op:
@@ -2083,6 +2134,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(seleqz_d);
 			DPFROMREG(rv.d, MIPSInst_FT(ir));
 			if (rv.l & 0x1)
 				rv.l = 0;
@@ -2094,6 +2146,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(selnez_d);
 			DPFROMREG(rv.d, MIPSInst_FT(ir));
 			if (rv.l & 0x1)
 				DPFROMREG(rv.d, MIPSInst_FS(ir));
@@ -2107,6 +2160,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(maddf_d);
 			DPFROMREG(ft, MIPSInst_FT(ir));
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			DPFROMREG(fd, MIPSInst_FD(ir));
@@ -2120,6 +2174,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(msubf_d);
 			DPFROMREG(ft, MIPSInst_FT(ir));
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			DPFROMREG(fd, MIPSInst_FD(ir));
@@ -2133,9 +2188,9 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(rint_d);
 			DPFROMREG(fs, MIPSInst_FS(ir));
-			rv.l = ieee754dp_tlong(fs);
-			rv.d = ieee754dp_flong(rv.l);
+			rv.d = ieee754dp_rint(fs);
 			goto copcsr;
 		}
 
@@ -2145,9 +2200,10 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(class_d);
 			DPFROMREG(fs, MIPSInst_FS(ir));
-			rv.w = ieee754dp_2008class(fs);
-			rfmt = w_fmt;
+			rv.l = ieee754dp_2008class(fs);
+			rfmt = l_fmt;
 			break;
 		}
 
@@ -2157,6 +2213,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(min_d);
 			DPFROMREG(ft, MIPSInst_FT(ir));
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.d = ieee754dp_fmin(fs, ft);
@@ -2169,6 +2226,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(mina_d);
 			DPFROMREG(ft, MIPSInst_FT(ir));
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.d = ieee754dp_fmina(fs, ft);
@@ -2181,6 +2239,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(max_d);
 			DPFROMREG(ft, MIPSInst_FT(ir));
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.d = ieee754dp_fmax(fs, ft);
@@ -2193,6 +2252,7 @@ copcsr:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(maxa_d);
 			DPFROMREG(ft, MIPSInst_FT(ir));
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.d = ieee754dp_fmaxa(fs, ft);
@@ -2200,15 +2260,18 @@ copcsr:
 		}
 
 		case fabs_op:
+			MIPS_FPU_EMU_INC_STATS(abs_d);
 			handler.u = ieee754dp_abs;
 			goto dcopuop;
 
 		case fneg_op:
+			MIPS_FPU_EMU_INC_STATS(neg_d);
 			handler.u = ieee754dp_neg;
 			goto dcopuop;
 
 		case fmov_op:
 			/* an easy one */
+			MIPS_FPU_EMU_INC_STATS(mov_d);
 			DPFROMREG(rv.d, MIPSInst_FS(ir));
 			goto copcsr;
 
@@ -2228,6 +2291,7 @@ dcopuop:
 		 * unary conv ops
 		 */
 		case fcvts_op:
+			MIPS_FPU_EMU_INC_STATS(cvt_s_d);
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.s = ieee754sp_fdp(fs);
 			rfmt = s_fmt;
@@ -2237,6 +2301,7 @@ dcopuop:
 			return SIGILL;	/* not defined */
 
 		case fcvtw_op:
+			MIPS_FPU_EMU_INC_STATS(cvt_w_d);
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.w = ieee754dp_tint(fs);	/* wrong */
 			rfmt = w_fmt;
@@ -2249,6 +2314,15 @@ dcopuop:
 			if (!cpu_has_mips_2_3_4_5_r)
 				return SIGILL;
 
+			if (MIPSInst_FUNC(ir) == fceil_op)
+				MIPS_FPU_EMU_INC_STATS(ceil_w_d);
+			if (MIPSInst_FUNC(ir) == ffloor_op)
+				MIPS_FPU_EMU_INC_STATS(floor_w_d);
+			if (MIPSInst_FUNC(ir) == fround_op)
+				MIPS_FPU_EMU_INC_STATS(round_w_d);
+			if (MIPSInst_FUNC(ir) == ftrunc_op)
+				MIPS_FPU_EMU_INC_STATS(trunc_w_d);
+
 			oldrm = ieee754_csr.rm;
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -2261,6 +2335,7 @@ dcopuop:
 			if (!cpu_has_mips_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(sel_d);
 			DPFROMREG(fd, MIPSInst_FD(ir));
 			if (fd.bits & 0x1)
 				DPFROMREG(rv.d, MIPSInst_FT(ir));
@@ -2272,6 +2347,7 @@ dcopuop:
 			if (!cpu_has_mips_3_4_5_64_r2_r6)
 				return SIGILL;
 
+			MIPS_FPU_EMU_INC_STATS(cvt_l_d);
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			rv.l = ieee754dp_tlong(fs);
 			rfmt = l_fmt;
@@ -2284,6 +2360,15 @@ dcopuop:
 			if (!cpu_has_mips_3_4_5_64_r2_r6)
 				return SIGILL;
 
+			if (MIPSInst_FUNC(ir) == fceill_op)
+				MIPS_FPU_EMU_INC_STATS(ceil_l_d);
+			if (MIPSInst_FUNC(ir) == ffloorl_op)
+				MIPS_FPU_EMU_INC_STATS(floor_l_d);
+			if (MIPSInst_FUNC(ir) == froundl_op)
+				MIPS_FPU_EMU_INC_STATS(round_l_d);
+			if (MIPSInst_FUNC(ir) == ftruncl_op)
+				MIPS_FPU_EMU_INC_STATS(trunc_l_d);
+
 			oldrm = ieee754_csr.rm;
 			DPFROMREG(fs, MIPSInst_FS(ir));
 			ieee754_csr.rm = MIPSInst_FUNC(ir);
@@ -2325,12 +2410,14 @@ dcopuop:
 		switch (MIPSInst_FUNC(ir)) {
 		case fcvts_op:
 			/* convert word to single precision real */
+			MIPS_FPU_EMU_INC_STATS(cvt_s_w);
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.s = ieee754sp_fint(fs.bits);
 			rfmt = s_fmt;
 			goto copcsr;
 		case fcvtd_op:
 			/* convert word to double precision real */
+			MIPS_FPU_EMU_INC_STATS(cvt_d_w);
 			SPFROMREG(fs, MIPSInst_FS(ir));
 			rv.d = ieee754dp_fint(fs.bits);
 			rfmt = d_fmt;
@@ -2350,6 +2437,90 @@ dcopuop:
 			    (MIPSInst_FUNC(ir) & 0x20))
 				return SIGILL;
 
+			if (!sig) {
+				if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+					switch (cmpop) {
+					case 0:
+					MIPS_FPU_EMU_INC_STATS(cmp_af_s);
+					break;
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_un_s);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_eq_s);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_ueq_s);
+					break;
+					case 4:
+					MIPS_FPU_EMU_INC_STATS(cmp_lt_s);
+					break;
+					case 5:
+					MIPS_FPU_EMU_INC_STATS(cmp_ult_s);
+					break;
+					case 6:
+					MIPS_FPU_EMU_INC_STATS(cmp_le_s);
+					break;
+					case 7:
+					MIPS_FPU_EMU_INC_STATS(cmp_ule_s);
+					break;
+					}
+				} else {
+					switch (cmpop) {
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_or_s);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_une_s);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_ne_s);
+					break;
+					}
+				}
+			} else {
+				if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+					switch (cmpop) {
+					case 0:
+					MIPS_FPU_EMU_INC_STATS(cmp_saf_s);
+					break;
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_sun_s);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_seq_s);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_sueq_s);
+					break;
+					case 4:
+					MIPS_FPU_EMU_INC_STATS(cmp_slt_s);
+					break;
+					case 5:
+					MIPS_FPU_EMU_INC_STATS(cmp_sult_s);
+					break;
+					case 6:
+					MIPS_FPU_EMU_INC_STATS(cmp_sle_s);
+					break;
+					case 7:
+					MIPS_FPU_EMU_INC_STATS(cmp_sule_s);
+					break;
+					}
+				} else {
+					switch (cmpop) {
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_sor_s);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_sune_s);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_sne_s);
+					break;
+					}
+				}
+			}
+
 			/* fmt is w_fmt for single precision so fix it */
 			rfmt = s_fmt;
 			/* default to false */
@@ -2387,13 +2558,13 @@ dcopuop:
 					break;
 				default:
 					/* Reserved R6 ops */
-					pr_err("Reserved MIPS R6 CMP.condn.S operation\n");
 					return SIGILL;
 				}
 			}
 			break;
 			}
 		}
+		break;
 	}
 
 	case l_fmt:
@@ -2406,11 +2577,13 @@ dcopuop:
 		switch (MIPSInst_FUNC(ir)) {
 		case fcvts_op:
 			/* convert long to single precision real */
+			MIPS_FPU_EMU_INC_STATS(cvt_s_l);
 			rv.s = ieee754sp_flong(bits);
 			rfmt = s_fmt;
 			goto copcsr;
 		case fcvtd_op:
 			/* convert long to double precision real */
+			MIPS_FPU_EMU_INC_STATS(cvt_d_l);
 			rv.d = ieee754dp_flong(bits);
 			rfmt = d_fmt;
 			goto copcsr;
@@ -2424,6 +2597,90 @@ dcopuop:
 			    (MIPSInst_FUNC(ir) & 0x20))
 				return SIGILL;
 
+			if (!sig) {
+				if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+					switch (cmpop) {
+					case 0:
+					MIPS_FPU_EMU_INC_STATS(cmp_af_d);
+					break;
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_un_d);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_eq_d);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_ueq_d);
+					break;
+					case 4:
+					MIPS_FPU_EMU_INC_STATS(cmp_lt_d);
+					break;
+					case 5:
+					MIPS_FPU_EMU_INC_STATS(cmp_ult_d);
+					break;
+					case 6:
+					MIPS_FPU_EMU_INC_STATS(cmp_le_d);
+					break;
+					case 7:
+					MIPS_FPU_EMU_INC_STATS(cmp_ule_d);
+					break;
+					}
+				} else {
+					switch (cmpop) {
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_or_d);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_une_d);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_ne_d);
+					break;
+					}
+				}
+			} else {
+				if (!(MIPSInst_FUNC(ir) & PREDICATE_BIT)) {
+					switch (cmpop) {
+					case 0:
+					MIPS_FPU_EMU_INC_STATS(cmp_saf_d);
+					break;
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_sun_d);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_seq_d);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_sueq_d);
+					break;
+					case 4:
+					MIPS_FPU_EMU_INC_STATS(cmp_slt_d);
+					break;
+					case 5:
+					MIPS_FPU_EMU_INC_STATS(cmp_sult_d);
+					break;
+					case 6:
+					MIPS_FPU_EMU_INC_STATS(cmp_sle_d);
+					break;
+					case 7:
+					MIPS_FPU_EMU_INC_STATS(cmp_sule_d);
+					break;
+					}
+				} else {
+					switch (cmpop) {
+					case 1:
+					MIPS_FPU_EMU_INC_STATS(cmp_sor_d);
+					break;
+					case 2:
+					MIPS_FPU_EMU_INC_STATS(cmp_sune_d);
+					break;
+					case 3:
+					MIPS_FPU_EMU_INC_STATS(cmp_sne_d);
+					break;
+					}
+				}
+			}
+
 			/* fmt is l_fmt for double precision so fix it */
 			rfmt = d_fmt;
 			/* default to false */
@@ -2461,13 +2718,14 @@ dcopuop:
 					break;
 				default:
 					/* Reserved R6 ops */
-					pr_err("Reserved MIPS R6 CMP.condn.D operation\n");
 					return SIGILL;
 				}
 			}
 			break;
 			}
 		}
+		break;
+
 	default:
 		return SIGILL;
 	}
@@ -2553,7 +2811,7 @@ dcopuop:
  * For simplicity we always terminate upon an ISA mode switch.
  */
 int fpu_emulator_cop1Handler(struct pt_regs *xcp, struct mips_fpu_struct *ctx,
-	int has_fpu, void *__user *fault_addr)
+	int has_fpu, void __user **fault_addr)
 {
 	unsigned long oldepc, prevepc;
 	struct mm_decoded_insn dec_insn;
diff --git a/arch/mips/math-emu/dp_fmax.c b/arch/mips/math-emu/dp_fmax.c
index fd71b8daaaf2..5bec64f2884e 100644
--- a/arch/mips/math-emu/dp_fmax.c
+++ b/arch/mips/math-emu/dp_fmax.c
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
 		return ys ? x : y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmax(union ieee754dp x, union ieee754dp y)
 	else if (xs < ys)
 		return x;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return x;
-	else if (xe < ye)
-		return y;
+	/* Signs of inputs are equal, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return y;
+		return x;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return y;
-	return x;
+		return x;
+	return y;
 }
 
 union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754dp_inf(xs & ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
 		return y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmaxa(union ieee754dp x, union ieee754dp y)
 		return y;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
 		return y;
-	return x;
+	else if (xm > ym)
+		return x;
+	else if (xs == 0)
+		return x;
+	return y;
 }
diff --git a/arch/mips/math-emu/dp_fmin.c b/arch/mips/math-emu/dp_fmin.c
index c1072b0dfb95..a287b23818d8 100644
--- a/arch/mips/math-emu/dp_fmin.c
+++ b/arch/mips/math-emu/dp_fmin.c
@@ -47,14 +47,26 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
 		return ys ? y : x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -106,16 +116,32 @@ union ieee754dp ieee754dp_fmin(union ieee754dp x, union ieee754dp y)
 	else if (xs < ys)
 		return y;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return y;
-	else if (xe < ye)
-		return x;
+	/* Signs of inputs are the same, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return x;
+		return y;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return x;
-	return y;
+		return y;
+	return x;
 }
 
 union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
@@ -147,14 +173,26 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754dp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754dp_inf(xs | ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
-		return x;
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
-		return y;
+		return x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754dp_zero(1);
+		return ieee754dp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
@@ -207,7 +245,11 @@ union ieee754dp ieee754dp_fmina(union ieee754dp x, union ieee754dp y)
 		return x;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
+		return x;
+	else if (xm > ym)
+		return y;
+	else if (xs == 1)
 		return x;
 	return y;
 }
diff --git a/arch/mips/math-emu/dp_maddf.c b/arch/mips/math-emu/dp_maddf.c
index caa62f20a888..e0d9be5fbf4c 100644
--- a/arch/mips/math-emu/dp_maddf.c
+++ b/arch/mips/math-emu/dp_maddf.c
@@ -14,22 +14,45 @@
 
 #include "ieee754dp.h"
 
-enum maddf_flags {
-	maddf_negate_product	= 1 << 0,
-};
+
+/* 128 bits shift right logical with rounding. */
+void srl128(u64 *hptr, u64 *lptr, int count)
+{
+	u64 low;
+
+	if (count >= 128) {
+		*lptr = *hptr != 0 || *lptr != 0;
+		*hptr = 0;
+	} else if (count >= 64) {
+		if (count == 64) {
+			*lptr = *hptr | (*lptr != 0);
+		} else {
+			low = *lptr;
+			*lptr = *hptr >> (count - 64);
+			*lptr |= (*hptr << (128 - count)) != 0 || low != 0;
+		}
+		*hptr = 0;
+	} else {
+		low = *lptr;
+		*lptr = low >> count | *hptr << (64 - count);
+		*lptr |= (low << (64 - count)) != 0;
+		*hptr = *hptr >> count;
+	}
+}
 
 static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 				 union ieee754dp y, enum maddf_flags flags)
 {
 	int re;
 	int rs;
-	u64 rm;
 	unsigned lxm;
 	unsigned hxm;
 	unsigned lym;
 	unsigned hym;
 	u64 lrm;
 	u64 hrm;
+	u64 lzm;
+	u64 hzm;
 	u64 t;
 	u64 at;
 	int s;
@@ -48,52 +71,34 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 
 	ieee754_clearcx();
 
-	switch (zc) {
-	case IEEE754_CLASS_SNAN:
-		ieee754_setcx(IEEE754_INVALID_OPERATION);
+	/*
+	 * Handle the cases when at least one of x, y or z is a NaN.
+	 * Order of precedence is sNaN, qNaN and z, x, y.
+	 */
+	if (zc == IEEE754_CLASS_SNAN)
 		return ieee754dp_nanxcpt(z);
-	case IEEE754_CLASS_DNORM:
-		DPDNORMZ;
-	/* QNAN and ZERO cases are handled separately below */
-	}
-
-	switch (CLPAIR(xc, yc)) {
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
-		return ieee754dp_nanxcpt(y);
-
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
+	if (xc == IEEE754_CLASS_SNAN)
 		return ieee754dp_nanxcpt(x);
-
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
+	if (yc == IEEE754_CLASS_SNAN)
+		return ieee754dp_nanxcpt(y);
+	if (zc == IEEE754_CLASS_QNAN)
+		return z;
+	if (xc == IEEE754_CLASS_QNAN)
+		return x;
+	if (yc == IEEE754_CLASS_QNAN)
 		return y;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
-		return x;
+	if (zc == IEEE754_CLASS_DNORM)
+		DPDNORMZ;
+	/* ZERO z cases are handled separately below */
 
+	switch (CLPAIR(xc, yc)) {
 
 	/*
 	 * Infinity handling
 	 */
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
 		ieee754_setcx(IEEE754_INVALID_OPERATION);
 		return ieee754dp_indef();
 
@@ -102,9 +107,27 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		return ieee754dp_inf(xs ^ ys);
+		if ((zc == IEEE754_CLASS_INF) &&
+		    ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) ||
+		     ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) {
+			/*
+			 * Cases of addition of infinities with opposite signs
+			 * or subtraction of infinities with same signs.
+			 */
+			ieee754_setcx(IEEE754_INVALID_OPERATION);
+			return ieee754dp_indef();
+		}
+		/*
+		 * z is here either not an infinity, or an infinity having the
+		 * same sign as product (x*y) (in case of MADDF.D instruction)
+		 * or product -(x*y) (in MSUBF.D case). The result must be an
+		 * infinity, and its sign is determined only by the value of
+		 * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y.
+		 */
+		if (flags & MADDF_NEGATE_PRODUCT)
+			return ieee754dp_inf(1 ^ (xs ^ ys));
+		else
+			return ieee754dp_inf(xs ^ ys);
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
@@ -113,32 +136,42 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
-		/* Multiplication is 0 so just return z */
+		if (zc == IEEE754_CLASS_ZERO) {
+			/* Handle cases +0 + (-0) and similar ones. */
+			if ((!(flags & MADDF_NEGATE_PRODUCT)
+					&& (zs == (xs ^ ys))) ||
+			    ((flags & MADDF_NEGATE_PRODUCT)
+					&& (zs != (xs ^ ys))))
+				/*
+				 * Cases of addition of zeros of equal signs
+				 * or subtraction of zeroes of opposite signs.
+				 * The sign of the resulting zero is in any
+				 * such case determined only by the sign of z.
+				 */
+				return z;
+
+			return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
+		}
+		/* x*y is here 0, and z is not 0, so just return z */
 		return z;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		DPDNORMX;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
 		DPDNORMY;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
 		DPDNORMX;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754dp_inf(zs);
 		/* fall through to real computations */
 	}
@@ -157,7 +190,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 
 	re = xe + ye;
 	rs = xs ^ ys;
-	if (flags & maddf_negate_product)
+	if (flags & MADDF_NEGATE_PRODUCT)
 		rs ^= 1;
 
 	/* shunt to top of word */
@@ -165,7 +198,7 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 	ym <<= 64 - (DP_FBITS + 1);
 
 	/*
-	 * Multiply 64 bits xm, ym to give high 64 bits rm with stickness.
+	 * Multiply 64 bits xm and ym to give 128 bits result in hrm:lrm.
 	 */
 
 	/* 32 * 32 => 64 */
@@ -195,81 +228,110 @@ static union ieee754dp _dp_maddf(union ieee754dp z, union ieee754dp x,
 
 	hrm = hrm + (t >> 32);
 
-	rm = hrm | (lrm != 0);
-
-	/*
-	 * Sticky shift down to normal rounding precision.
-	 */
-	if ((s64) rm < 0) {
-		rm = (rm >> (64 - (DP_FBITS + 1 + 3))) |
-		     ((rm << (DP_FBITS + 1 + 3)) != 0);
+	/* Put explicit bit at bit 126 if necessary */
+	if ((int64_t)hrm < 0) {
+		lrm = (hrm << 63) | (lrm >> 1);
+		hrm = hrm >> 1;
 		re++;
-	} else {
-		rm = (rm >> (64 - (DP_FBITS + 1 + 3 + 1))) |
-		     ((rm << (DP_FBITS + 1 + 3 + 1)) != 0);
 	}
-	assert(rm & (DP_HIDDEN_BIT << 3));
 
-	if (zc == IEEE754_CLASS_ZERO)
-		return ieee754dp_format(rs, re, rm);
+	assert(hrm & (1 << 62));
 
-	/* And now the addition */
-	assert(zm & DP_HIDDEN_BIT);
+	if (zc == IEEE754_CLASS_ZERO) {
+		/*
+		 * Move explicit bit from bit 126 to bit 55 since the
+		 * ieee754dp_format code expects the mantissa to be
+		 * 56 bits wide (53 + 3 rounding bits).
+		 */
+		srl128(&hrm, &lrm, (126 - 55));
+		return ieee754dp_format(rs, re, lrm);
+	}
 
-	/*
-	 * Provide guard,round and stick bit space.
-	 */
-	zm <<= 3;
+	/* Move explicit bit from bit 52 to bit 126 */
+	lzm = 0;
+	hzm = zm << 10;
+	assert(hzm & (1 << 62));
 
+	/* Make the exponents the same */
 	if (ze > re) {
 		/*
 		 * Have to shift y fraction right to align.
 		 */
 		s = ze - re;
-		rm = XDPSRS(rm, s);
+		srl128(&hrm, &lrm, s);
 		re += s;
 	} else if (re > ze) {
 		/*
 		 * Have to shift x fraction right to align.
 		 */
 		s = re - ze;
-		zm = XDPSRS(zm, s);
+		srl128(&hzm, &lzm, s);
 		ze += s;
 	}
 	assert(ze == re);
 	assert(ze <= DP_EMAX);
 
+	/* Do the addition */
 	if (zs == rs) {
 		/*
-		 * Generate 28 bit result of adding two 27 bit numbers
-		 * leaving result in xm, xs and xe.
+		 * Generate 128 bit result by adding two 127 bit numbers
+		 * leaving result in hzm:lzm, zs and ze.
 		 */
-		zm = zm + rm;
-
-		if (zm >> (DP_FBITS + 1 + 3)) { /* carry out */
-			zm = XDPSRS1(zm);
+		hzm = hzm + hrm + (lzm > (lzm + lrm));
+		lzm = lzm + lrm;
+		if ((int64_t)hzm < 0) {        /* carry out */
+			srl128(&hzm, &lzm, 1);
 			ze++;
 		}
 	} else {
-		if (zm >= rm) {
-			zm = zm - rm;
+		if (hzm > hrm || (hzm == hrm && lzm >= lrm)) {
+			hzm = hzm - hrm - (lzm < lrm);
+			lzm = lzm - lrm;
 		} else {
-			zm = rm - zm;
+			hzm = hrm - hzm - (lrm < lzm);
+			lzm = lrm - lzm;
 			zs = rs;
 		}
-		if (zm == 0)
+		if (lzm == 0 && hzm == 0)
 			return ieee754dp_zero(ieee754_csr.rm == FPU_CSR_RD);
 
 		/*
-		 * Normalize to rounding precision.
+		 * Put explicit bit at bit 126 if necessary.
 		 */
-		while ((zm >> (DP_FBITS + 3)) == 0) {
-			zm <<= 1;
-			ze--;
+		if (hzm == 0) {
+			/* left shift by 63 or 64 bits */
+			if ((int64_t)lzm < 0) {
+				/* MSB of lzm is the explicit bit */
+				hzm = lzm >> 1;
+				lzm = lzm << 63;
+				ze -= 63;
+			} else {
+				hzm = lzm;
+				lzm = 0;
+				ze -= 64;
+			}
+		}
+
+		t = 0;
+		while ((hzm >> (62 - t)) == 0)
+			t++;
+
+		assert(t <= 62);
+		if (t) {
+			hzm = hzm << t | lzm >> (64 - t);
+			lzm = lzm << t;
+			ze -= t;
 		}
 	}
 
-	return ieee754dp_format(zs, ze, zm);
+	/*
+	 * Move explicit bit from bit 126 to bit 55 since the
+	 * ieee754dp_format code expects the mantissa to be
+	 * 56 bits wide (53 + 3 rounding bits).
+	 */
+	srl128(&hzm, &lzm, (126 - 55));
+
+	return ieee754dp_format(zs, ze, lzm);
 }
 
 union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
@@ -281,5 +343,5 @@ union ieee754dp ieee754dp_maddf(union ieee754dp z, union ieee754dp x,
 union ieee754dp ieee754dp_msubf(union ieee754dp z, union ieee754dp x,
 				union ieee754dp y)
 {
-	return _dp_maddf(z, x, y, maddf_negate_product);
+	return _dp_maddf(z, x, y, MADDF_NEGATE_PRODUCT);
 }
diff --git a/arch/mips/math-emu/dp_rint.c b/arch/mips/math-emu/dp_rint.c
new file mode 100644
index 000000000000..c3b9077ff357
--- /dev/null
+++ b/arch/mips/math-emu/dp_rint.c
@@ -0,0 +1,89 @@
+/* IEEE754 floating point arithmetic
+ * double precision: common utilities
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ * Copyright (C) 2017 Imagination Technologies, Ltd.
+ * Author: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_rint(union ieee754dp x)
+{
+	union ieee754dp ret;
+	u64 residue;
+	int sticky;
+	int round;
+	int odd;
+
+	COMPXDP;
+
+	ieee754_clearcx();
+
+	EXPLODEXDP;
+	FLUSHXDP;
+
+	if (xc == IEEE754_CLASS_SNAN)
+		return ieee754dp_nanxcpt(x);
+
+	if ((xc == IEEE754_CLASS_QNAN) ||
+	    (xc == IEEE754_CLASS_INF) ||
+	    (xc == IEEE754_CLASS_ZERO))
+		return x;
+
+	if (xe >= DP_FBITS)
+		return x;
+
+	if (xe < -1) {
+		residue = xm;
+		round = 0;
+		sticky = residue != 0;
+		xm = 0;
+	} else {
+		residue = xm << (64 - DP_FBITS + xe);
+		round = (residue >> 63) != 0;
+		sticky = (residue << 1) != 0;
+		xm >>= DP_FBITS - xe;
+	}
+
+	odd = (xm & 0x1) != 0x0;
+
+	switch (ieee754_csr.rm) {
+	case FPU_CSR_RN:	/* toward nearest */
+		if (round && (sticky || odd))
+			xm++;
+		break;
+	case FPU_CSR_RZ:	/* toward zero */
+		break;
+	case FPU_CSR_RU:	/* toward +infinity */
+		if ((round || sticky) && !xs)
+			xm++;
+		break;
+	case FPU_CSR_RD:	/* toward -infinity */
+		if ((round || sticky) && xs)
+			xm++;
+		break;
+	}
+
+	if (round || sticky)
+		ieee754_setcx(IEEE754_INEXACT);
+
+	ret = ieee754dp_flong(xm);
+	DPSIGN(ret) = xs;
+
+	return ret;
+}
diff --git a/arch/mips/math-emu/dsemul.c b/arch/mips/math-emu/dsemul.c
index b6bfd3625369..5450f4d1c920 100644
--- a/arch/mips/math-emu/dsemul.c
+++ b/arch/mips/math-emu/dsemul.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/mm_types.h>
diff --git a/arch/mips/math-emu/ieee754.h b/arch/mips/math-emu/ieee754.h
index d3be351aed15..92dc8fa565cb 100644
--- a/arch/mips/math-emu/ieee754.h
+++ b/arch/mips/math-emu/ieee754.h
@@ -67,6 +67,7 @@ union ieee754sp ieee754sp_div(union ieee754sp x, union ieee754sp y);
 union ieee754sp ieee754sp_fint(int x);
 union ieee754sp ieee754sp_flong(s64 x);
 union ieee754sp ieee754sp_fdp(union ieee754dp x);
+union ieee754sp ieee754sp_rint(union ieee754sp x);
 
 int ieee754sp_tint(union ieee754sp x);
 s64 ieee754sp_tlong(union ieee754sp x);
@@ -101,6 +102,7 @@ union ieee754dp ieee754dp_neg(union ieee754dp x);
 union ieee754dp ieee754dp_fint(int x);
 union ieee754dp ieee754dp_flong(s64 x);
 union ieee754dp ieee754dp_fsp(union ieee754sp x);
+union ieee754dp ieee754dp_rint(union ieee754dp x);
 
 int ieee754dp_tint(union ieee754dp x);
 s64 ieee754dp_tlong(union ieee754dp x);
diff --git a/arch/mips/math-emu/ieee754int.h b/arch/mips/math-emu/ieee754int.h
index 8bc2f6963324..dd2071f430e0 100644
--- a/arch/mips/math-emu/ieee754int.h
+++ b/arch/mips/math-emu/ieee754int.h
@@ -26,6 +26,10 @@
 
 #define CLPAIR(x, y)	((x)*6+(y))
 
+enum maddf_flags {
+	MADDF_NEGATE_PRODUCT	= 1 << 0,
+};
+
 static inline void ieee754_clearcx(void)
 {
 	ieee754_csr.cx = 0;
diff --git a/arch/mips/math-emu/ieee754sp.h b/arch/mips/math-emu/ieee754sp.h
index 8476067075fe..0f63e4202cff 100644
--- a/arch/mips/math-emu/ieee754sp.h
+++ b/arch/mips/math-emu/ieee754sp.h
@@ -45,6 +45,10 @@ static inline int ieee754sp_finite(union ieee754sp x)
 	return SPBEXP(x) != SP_EMAX + 1 + SP_EBIAS;
 }
 
+/* 64 bit right shift with rounding */
+#define XSPSRS64(v, rs)						\
+	(((rs) >= 64) ? ((v) != 0) : ((v) >> (rs)) | ((v) << (64-(rs)) != 0))
+
 /* 3bit extended single precision sticky right shift */
 #define XSPSRS(v, rs)						\
 	((rs > (SP_FBITS+3))?1:((v) >> (rs)) | ((v) << (32-(rs)) != 0))
diff --git a/arch/mips/math-emu/me-debugfs.c b/arch/mips/math-emu/me-debugfs.c
index be650ed7db59..62566385ce0e 100644
--- a/arch/mips/math-emu/me-debugfs.c
+++ b/arch/mips/math-emu/me-debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cpumask.h>
 #include <linux/debugfs.h>
 #include <linux/fs.h>
@@ -28,14 +29,190 @@ static int fpuemu_stat_get(void *data, u64 *val)
 }
 DEFINE_SIMPLE_ATTRIBUTE(fops_fpuemu_stat, fpuemu_stat_get, NULL, "%llu\n");
 
+/*
+ * Used to obtain names for a debugfs instruction counter, given field name
+ * in fpuemustats structure. For example, for input "cmp_sueq_d", the output
+ * would be "cmp.sueq.d". This is needed since dots are not allowed to be
+ * used in structure field names, and are, on the other hand, desired to be
+ * used in debugfs item names to be clearly associated to corresponding
+ * MIPS FPU instructions.
+ */
+static void adjust_instruction_counter_name(char *out_name, char *in_name)
+{
+	int i = 0;
+
+	strcpy(out_name, in_name);
+	while (in_name[i] != '\0') {
+		if (out_name[i] == '_')
+			out_name[i] = '.';
+		i++;
+	}
+}
+
+static int fpuemustats_clear_show(struct seq_file *s, void *unused)
+{
+	__this_cpu_write((fpuemustats).emulated, 0);
+	__this_cpu_write((fpuemustats).loads, 0);
+	__this_cpu_write((fpuemustats).stores, 0);
+	__this_cpu_write((fpuemustats).branches, 0);
+	__this_cpu_write((fpuemustats).cp1ops, 0);
+	__this_cpu_write((fpuemustats).cp1xops, 0);
+	__this_cpu_write((fpuemustats).errors, 0);
+	__this_cpu_write((fpuemustats).ieee754_inexact, 0);
+	__this_cpu_write((fpuemustats).ieee754_underflow, 0);
+	__this_cpu_write((fpuemustats).ieee754_overflow, 0);
+	__this_cpu_write((fpuemustats).ieee754_zerodiv, 0);
+	__this_cpu_write((fpuemustats).ieee754_invalidop, 0);
+	__this_cpu_write((fpuemustats).ds_emul, 0);
+
+	__this_cpu_write((fpuemustats).abs_s, 0);
+	__this_cpu_write((fpuemustats).abs_d, 0);
+	__this_cpu_write((fpuemustats).add_s, 0);
+	__this_cpu_write((fpuemustats).add_d, 0);
+	__this_cpu_write((fpuemustats).bc1eqz, 0);
+	__this_cpu_write((fpuemustats).bc1nez, 0);
+	__this_cpu_write((fpuemustats).ceil_w_s, 0);
+	__this_cpu_write((fpuemustats).ceil_w_d, 0);
+	__this_cpu_write((fpuemustats).ceil_l_s, 0);
+	__this_cpu_write((fpuemustats).ceil_l_d, 0);
+	__this_cpu_write((fpuemustats).class_s, 0);
+	__this_cpu_write((fpuemustats).class_d, 0);
+	__this_cpu_write((fpuemustats).cmp_af_s, 0);
+	__this_cpu_write((fpuemustats).cmp_af_d, 0);
+	__this_cpu_write((fpuemustats).cmp_eq_s, 0);
+	__this_cpu_write((fpuemustats).cmp_eq_d, 0);
+	__this_cpu_write((fpuemustats).cmp_le_s, 0);
+	__this_cpu_write((fpuemustats).cmp_le_d, 0);
+	__this_cpu_write((fpuemustats).cmp_lt_s, 0);
+	__this_cpu_write((fpuemustats).cmp_lt_d, 0);
+	__this_cpu_write((fpuemustats).cmp_ne_s, 0);
+	__this_cpu_write((fpuemustats).cmp_ne_d, 0);
+	__this_cpu_write((fpuemustats).cmp_or_s, 0);
+	__this_cpu_write((fpuemustats).cmp_or_d, 0);
+	__this_cpu_write((fpuemustats).cmp_ueq_s, 0);
+	__this_cpu_write((fpuemustats).cmp_ueq_d, 0);
+	__this_cpu_write((fpuemustats).cmp_ule_s, 0);
+	__this_cpu_write((fpuemustats).cmp_ule_d, 0);
+	__this_cpu_write((fpuemustats).cmp_ult_s, 0);
+	__this_cpu_write((fpuemustats).cmp_ult_d, 0);
+	__this_cpu_write((fpuemustats).cmp_un_s, 0);
+	__this_cpu_write((fpuemustats).cmp_un_d, 0);
+	__this_cpu_write((fpuemustats).cmp_une_s, 0);
+	__this_cpu_write((fpuemustats).cmp_une_d, 0);
+	__this_cpu_write((fpuemustats).cmp_saf_s, 0);
+	__this_cpu_write((fpuemustats).cmp_saf_d, 0);
+	__this_cpu_write((fpuemustats).cmp_seq_s, 0);
+	__this_cpu_write((fpuemustats).cmp_seq_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sle_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sle_d, 0);
+	__this_cpu_write((fpuemustats).cmp_slt_s, 0);
+	__this_cpu_write((fpuemustats).cmp_slt_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sne_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sne_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sor_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sor_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sueq_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sueq_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sule_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sule_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sult_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sult_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sun_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sun_d, 0);
+	__this_cpu_write((fpuemustats).cmp_sune_s, 0);
+	__this_cpu_write((fpuemustats).cmp_sune_d, 0);
+	__this_cpu_write((fpuemustats).cvt_d_l, 0);
+	__this_cpu_write((fpuemustats).cvt_d_s, 0);
+	__this_cpu_write((fpuemustats).cvt_d_w, 0);
+	__this_cpu_write((fpuemustats).cvt_l_s, 0);
+	__this_cpu_write((fpuemustats).cvt_l_d, 0);
+	__this_cpu_write((fpuemustats).cvt_s_d, 0);
+	__this_cpu_write((fpuemustats).cvt_s_l, 0);
+	__this_cpu_write((fpuemustats).cvt_s_w, 0);
+	__this_cpu_write((fpuemustats).cvt_w_s, 0);
+	__this_cpu_write((fpuemustats).cvt_w_d, 0);
+	__this_cpu_write((fpuemustats).div_s, 0);
+	__this_cpu_write((fpuemustats).div_d, 0);
+	__this_cpu_write((fpuemustats).floor_w_s, 0);
+	__this_cpu_write((fpuemustats).floor_w_d, 0);
+	__this_cpu_write((fpuemustats).floor_l_s, 0);
+	__this_cpu_write((fpuemustats).floor_l_d, 0);
+	__this_cpu_write((fpuemustats).maddf_s, 0);
+	__this_cpu_write((fpuemustats).maddf_d, 0);
+	__this_cpu_write((fpuemustats).max_s, 0);
+	__this_cpu_write((fpuemustats).max_d, 0);
+	__this_cpu_write((fpuemustats).maxa_s, 0);
+	__this_cpu_write((fpuemustats).maxa_d, 0);
+	__this_cpu_write((fpuemustats).min_s, 0);
+	__this_cpu_write((fpuemustats).min_d, 0);
+	__this_cpu_write((fpuemustats).mina_s, 0);
+	__this_cpu_write((fpuemustats).mina_d, 0);
+	__this_cpu_write((fpuemustats).mov_s, 0);
+	__this_cpu_write((fpuemustats).mov_d, 0);
+	__this_cpu_write((fpuemustats).msubf_s, 0);
+	__this_cpu_write((fpuemustats).msubf_d, 0);
+	__this_cpu_write((fpuemustats).mul_s, 0);
+	__this_cpu_write((fpuemustats).mul_d, 0);
+	__this_cpu_write((fpuemustats).neg_s, 0);
+	__this_cpu_write((fpuemustats).neg_d, 0);
+	__this_cpu_write((fpuemustats).recip_s, 0);
+	__this_cpu_write((fpuemustats).recip_d, 0);
+	__this_cpu_write((fpuemustats).rint_s, 0);
+	__this_cpu_write((fpuemustats).rint_d, 0);
+	__this_cpu_write((fpuemustats).round_w_s, 0);
+	__this_cpu_write((fpuemustats).round_w_d, 0);
+	__this_cpu_write((fpuemustats).round_l_s, 0);
+	__this_cpu_write((fpuemustats).round_l_d, 0);
+	__this_cpu_write((fpuemustats).rsqrt_s, 0);
+	__this_cpu_write((fpuemustats).rsqrt_d, 0);
+	__this_cpu_write((fpuemustats).sel_s, 0);
+	__this_cpu_write((fpuemustats).sel_d, 0);
+	__this_cpu_write((fpuemustats).seleqz_s, 0);
+	__this_cpu_write((fpuemustats).seleqz_d, 0);
+	__this_cpu_write((fpuemustats).selnez_s, 0);
+	__this_cpu_write((fpuemustats).selnez_d, 0);
+	__this_cpu_write((fpuemustats).sqrt_s, 0);
+	__this_cpu_write((fpuemustats).sqrt_d, 0);
+	__this_cpu_write((fpuemustats).sub_s, 0);
+	__this_cpu_write((fpuemustats).sub_d, 0);
+	__this_cpu_write((fpuemustats).trunc_w_s, 0);
+	__this_cpu_write((fpuemustats).trunc_w_d, 0);
+	__this_cpu_write((fpuemustats).trunc_l_s, 0);
+	__this_cpu_write((fpuemustats).trunc_l_d, 0);
+
+	return 0;
+}
+
+static int fpuemustats_clear_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, fpuemustats_clear_show, inode->i_private);
+}
+
+static const struct file_operations fpuemustats_clear_fops = {
+	.open                   = fpuemustats_clear_open,
+	.read			= seq_read,
+	.llseek			= seq_lseek,
+	.release		= single_release,
+};
+
 static int __init debugfs_fpuemu(void)
 {
-	struct dentry *d, *dir;
+	struct dentry *fpuemu_debugfs_base_dir;
+	struct dentry *fpuemu_debugfs_inst_dir;
+	struct dentry *d, *reset_file;
 
 	if (!mips_debugfs_dir)
 		return -ENODEV;
-	dir = debugfs_create_dir("fpuemustats", mips_debugfs_dir);
-	if (!dir)
+
+	fpuemu_debugfs_base_dir = debugfs_create_dir("fpuemustats",
+						     mips_debugfs_dir);
+	if (!fpuemu_debugfs_base_dir)
+		return -ENOMEM;
+
+	reset_file = debugfs_create_file("fpuemustats_clear", 0444,
+					 mips_debugfs_dir, NULL,
+					 &fpuemustats_clear_fops);
+	if (!reset_file)
 		return -ENOMEM;
 
 #define FPU_EMU_STAT_OFFSET(m)						\
@@ -43,7 +220,7 @@ static int __init debugfs_fpuemu(void)
 
 #define FPU_STAT_CREATE(m)						\
 do {									\
-	d = debugfs_create_file(#m , S_IRUGO, dir,			\
+	d = debugfs_create_file(#m, 0444, fpuemu_debugfs_base_dir,	\
 				(void *)FPU_EMU_STAT_OFFSET(m),		\
 				&fops_fpuemu_stat);			\
 	if (!d)								\
@@ -53,6 +230,7 @@ do {									\
 	FPU_STAT_CREATE(emulated);
 	FPU_STAT_CREATE(loads);
 	FPU_STAT_CREATE(stores);
+	FPU_STAT_CREATE(branches);
 	FPU_STAT_CREATE(cp1ops);
 	FPU_STAT_CREATE(cp1xops);
 	FPU_STAT_CREATE(errors);
@@ -63,6 +241,139 @@ do {									\
 	FPU_STAT_CREATE(ieee754_invalidop);
 	FPU_STAT_CREATE(ds_emul);
 
+	fpuemu_debugfs_inst_dir = debugfs_create_dir("instructions",
+						     fpuemu_debugfs_base_dir);
+	if (!fpuemu_debugfs_inst_dir)
+		return -ENOMEM;
+
+#define FPU_STAT_CREATE_EX(m)						\
+do {									\
+	char name[32];							\
+									\
+	adjust_instruction_counter_name(name, #m);			\
+									\
+	d = debugfs_create_file(name, 0444, fpuemu_debugfs_inst_dir,	\
+				(void *)FPU_EMU_STAT_OFFSET(m),		\
+				&fops_fpuemu_stat);			\
+	if (!d)								\
+		return -ENOMEM;						\
+} while (0)
+
+	FPU_STAT_CREATE_EX(abs_s);
+	FPU_STAT_CREATE_EX(abs_d);
+	FPU_STAT_CREATE_EX(add_s);
+	FPU_STAT_CREATE_EX(add_d);
+	FPU_STAT_CREATE_EX(bc1eqz);
+	FPU_STAT_CREATE_EX(bc1nez);
+	FPU_STAT_CREATE_EX(ceil_w_s);
+	FPU_STAT_CREATE_EX(ceil_w_d);
+	FPU_STAT_CREATE_EX(ceil_l_s);
+	FPU_STAT_CREATE_EX(ceil_l_d);
+	FPU_STAT_CREATE_EX(class_s);
+	FPU_STAT_CREATE_EX(class_d);
+	FPU_STAT_CREATE_EX(cmp_af_s);
+	FPU_STAT_CREATE_EX(cmp_af_d);
+	FPU_STAT_CREATE_EX(cmp_eq_s);
+	FPU_STAT_CREATE_EX(cmp_eq_d);
+	FPU_STAT_CREATE_EX(cmp_le_s);
+	FPU_STAT_CREATE_EX(cmp_le_d);
+	FPU_STAT_CREATE_EX(cmp_lt_s);
+	FPU_STAT_CREATE_EX(cmp_lt_d);
+	FPU_STAT_CREATE_EX(cmp_ne_s);
+	FPU_STAT_CREATE_EX(cmp_ne_d);
+	FPU_STAT_CREATE_EX(cmp_or_s);
+	FPU_STAT_CREATE_EX(cmp_or_d);
+	FPU_STAT_CREATE_EX(cmp_ueq_s);
+	FPU_STAT_CREATE_EX(cmp_ueq_d);
+	FPU_STAT_CREATE_EX(cmp_ule_s);
+	FPU_STAT_CREATE_EX(cmp_ule_d);
+	FPU_STAT_CREATE_EX(cmp_ult_s);
+	FPU_STAT_CREATE_EX(cmp_ult_d);
+	FPU_STAT_CREATE_EX(cmp_un_s);
+	FPU_STAT_CREATE_EX(cmp_un_d);
+	FPU_STAT_CREATE_EX(cmp_une_s);
+	FPU_STAT_CREATE_EX(cmp_une_d);
+	FPU_STAT_CREATE_EX(cmp_saf_s);
+	FPU_STAT_CREATE_EX(cmp_saf_d);
+	FPU_STAT_CREATE_EX(cmp_seq_s);
+	FPU_STAT_CREATE_EX(cmp_seq_d);
+	FPU_STAT_CREATE_EX(cmp_sle_s);
+	FPU_STAT_CREATE_EX(cmp_sle_d);
+	FPU_STAT_CREATE_EX(cmp_slt_s);
+	FPU_STAT_CREATE_EX(cmp_slt_d);
+	FPU_STAT_CREATE_EX(cmp_sne_s);
+	FPU_STAT_CREATE_EX(cmp_sne_d);
+	FPU_STAT_CREATE_EX(cmp_sor_s);
+	FPU_STAT_CREATE_EX(cmp_sor_d);
+	FPU_STAT_CREATE_EX(cmp_sueq_s);
+	FPU_STAT_CREATE_EX(cmp_sueq_d);
+	FPU_STAT_CREATE_EX(cmp_sule_s);
+	FPU_STAT_CREATE_EX(cmp_sule_d);
+	FPU_STAT_CREATE_EX(cmp_sult_s);
+	FPU_STAT_CREATE_EX(cmp_sult_d);
+	FPU_STAT_CREATE_EX(cmp_sun_s);
+	FPU_STAT_CREATE_EX(cmp_sun_d);
+	FPU_STAT_CREATE_EX(cmp_sune_s);
+	FPU_STAT_CREATE_EX(cmp_sune_d);
+	FPU_STAT_CREATE_EX(cvt_d_l);
+	FPU_STAT_CREATE_EX(cvt_d_s);
+	FPU_STAT_CREATE_EX(cvt_d_w);
+	FPU_STAT_CREATE_EX(cvt_l_s);
+	FPU_STAT_CREATE_EX(cvt_l_d);
+	FPU_STAT_CREATE_EX(cvt_s_d);
+	FPU_STAT_CREATE_EX(cvt_s_l);
+	FPU_STAT_CREATE_EX(cvt_s_w);
+	FPU_STAT_CREATE_EX(cvt_w_s);
+	FPU_STAT_CREATE_EX(cvt_w_d);
+	FPU_STAT_CREATE_EX(div_s);
+	FPU_STAT_CREATE_EX(div_d);
+	FPU_STAT_CREATE_EX(floor_w_s);
+	FPU_STAT_CREATE_EX(floor_w_d);
+	FPU_STAT_CREATE_EX(floor_l_s);
+	FPU_STAT_CREATE_EX(floor_l_d);
+	FPU_STAT_CREATE_EX(maddf_s);
+	FPU_STAT_CREATE_EX(maddf_d);
+	FPU_STAT_CREATE_EX(max_s);
+	FPU_STAT_CREATE_EX(max_d);
+	FPU_STAT_CREATE_EX(maxa_s);
+	FPU_STAT_CREATE_EX(maxa_d);
+	FPU_STAT_CREATE_EX(min_s);
+	FPU_STAT_CREATE_EX(min_d);
+	FPU_STAT_CREATE_EX(mina_s);
+	FPU_STAT_CREATE_EX(mina_d);
+	FPU_STAT_CREATE_EX(mov_s);
+	FPU_STAT_CREATE_EX(mov_d);
+	FPU_STAT_CREATE_EX(msubf_s);
+	FPU_STAT_CREATE_EX(msubf_d);
+	FPU_STAT_CREATE_EX(mul_s);
+	FPU_STAT_CREATE_EX(mul_d);
+	FPU_STAT_CREATE_EX(neg_s);
+	FPU_STAT_CREATE_EX(neg_d);
+	FPU_STAT_CREATE_EX(recip_s);
+	FPU_STAT_CREATE_EX(recip_d);
+	FPU_STAT_CREATE_EX(rint_s);
+	FPU_STAT_CREATE_EX(rint_d);
+	FPU_STAT_CREATE_EX(round_w_s);
+	FPU_STAT_CREATE_EX(round_w_d);
+	FPU_STAT_CREATE_EX(round_l_s);
+	FPU_STAT_CREATE_EX(round_l_d);
+	FPU_STAT_CREATE_EX(rsqrt_s);
+	FPU_STAT_CREATE_EX(rsqrt_d);
+	FPU_STAT_CREATE_EX(sel_s);
+	FPU_STAT_CREATE_EX(sel_d);
+	FPU_STAT_CREATE_EX(seleqz_s);
+	FPU_STAT_CREATE_EX(seleqz_d);
+	FPU_STAT_CREATE_EX(selnez_s);
+	FPU_STAT_CREATE_EX(selnez_d);
+	FPU_STAT_CREATE_EX(sqrt_s);
+	FPU_STAT_CREATE_EX(sqrt_d);
+	FPU_STAT_CREATE_EX(sub_s);
+	FPU_STAT_CREATE_EX(sub_d);
+	FPU_STAT_CREATE_EX(trunc_w_s);
+	FPU_STAT_CREATE_EX(trunc_w_d);
+	FPU_STAT_CREATE_EX(trunc_l_s);
+	FPU_STAT_CREATE_EX(trunc_l_d);
+
 	return 0;
 }
 arch_initcall(debugfs_fpuemu);
diff --git a/arch/mips/math-emu/sp_fmax.c b/arch/mips/math-emu/sp_fmax.c
index 4d000844e48e..74a5a00d2f22 100644
--- a/arch/mips/math-emu/sp_fmax.c
+++ b/arch/mips/math-emu/sp_fmax.c
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
 		return ys ? x : y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmax(union ieee754sp x, union ieee754sp y)
 	else if (xs < ys)
 		return x;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return x;
-	else if (xe < ye)
-		return y;
+	/* Signs of inputs are equal, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return y;
+		return x;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return y;
-	return x;
+		return x;
+	return y;
 }
 
 union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,6 +202,9 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754sp_inf(xs & ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
@@ -171,7 +212,6 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
@@ -180,9 +220,7 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
 		return y;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs & ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmaxa(union ieee754sp x, union ieee754sp y)
 		return y;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
 		return y;
-	return x;
+	else if (xm > ym)
+		return x;
+	else if (xs == 0)
+		return x;
+	return y;
 }
diff --git a/arch/mips/math-emu/sp_fmin.c b/arch/mips/math-emu/sp_fmin.c
index 4eb1bb9e9dec..c51385f46b09 100644
--- a/arch/mips/math-emu/sp_fmin.c
+++ b/arch/mips/math-emu/sp_fmin.c
@@ -47,14 +47,26 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -80,9 +92,7 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
 		return ys ? y : x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -106,16 +116,32 @@ union ieee754sp ieee754sp_fmin(union ieee754sp x, union ieee754sp y)
 	else if (xs < ys)
 		return y;
 
-	/* Compare exponent */
-	if (xe > ye)
-		return y;
-	else if (xe < ye)
-		return x;
+	/* Signs of inputs are the same, let's compare exponents */
+	if (xs == 0) {
+		/* Inputs are both positive */
+		if (xe > ye)
+			return y;
+		else if (xe < ye)
+			return x;
+	} else {
+		/* Inputs are both negative */
+		if (xe > ye)
+			return x;
+		else if (xe < ye)
+			return y;
+	}
 
-	/* Compare mantissa */
+	/* Signs and exponents of inputs are equal, let's compare mantissas */
+	if (xs == 0) {
+		/* Inputs are both positive, with equal signs and exponents */
+		if (xm <= ym)
+			return x;
+		return y;
+	}
+	/* Inputs are both negative, with equal signs and exponents */
 	if (xm <= ym)
-		return x;
-	return y;
+		return y;
+	return x;
 }
 
 union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
@@ -147,14 +173,26 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
 	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
 		return ieee754sp_nanxcpt(x);
 
-	/* numbers are preferred to NaNs */
+	/*
+	 * Quiet NaN handling
+	 */
+
+	/*
+	 *    The case of both inputs quiet NaNs
+	 */
+	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
+		return x;
+
+	/*
+	 *    The cases of exactly one input quiet NaN (numbers
+	 *    are here preferred as returned values to NaNs)
+	 */
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
 		return x;
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
@@ -164,25 +202,25 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
 	/*
 	 * Infinity and zero handling
 	 */
+	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
+		return ieee754sp_inf(xs | ys);
+
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
-		return x;
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_DNORM):
-		return y;
+		return x;
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
-		if (xs == ys)
-			return x;
-		return ieee754sp_zero(1);
+		return ieee754sp_zero(xs | ys);
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
@@ -207,7 +245,11 @@ union ieee754sp ieee754sp_fmina(union ieee754sp x, union ieee754sp y)
 		return x;
 
 	/* Compare mantissa */
-	if (xm <= ym)
+	if (xm < ym)
+		return x;
+	else if (xm > ym)
+		return y;
+	else if (xs == 1)
 		return x;
 	return y;
 }
diff --git a/arch/mips/math-emu/sp_maddf.c b/arch/mips/math-emu/sp_maddf.c
index c91d5e5d9b5f..7195fe785d81 100644
--- a/arch/mips/math-emu/sp_maddf.c
+++ b/arch/mips/math-emu/sp_maddf.c
@@ -14,9 +14,6 @@
 
 #include "ieee754sp.h"
 
-enum maddf_flags {
-	maddf_negate_product	= 1 << 0,
-};
 
 static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 				 union ieee754sp y, enum maddf_flags flags)
@@ -24,14 +21,8 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 	int re;
 	int rs;
 	unsigned rm;
-	unsigned short lxm;
-	unsigned short hxm;
-	unsigned short lym;
-	unsigned short hym;
-	unsigned lrm;
-	unsigned hrm;
-	unsigned t;
-	unsigned at;
+	uint64_t rm64;
+	uint64_t zm64;
 	int s;
 
 	COMPXSP;
@@ -48,51 +39,35 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 
 	ieee754_clearcx();
 
-	switch (zc) {
-	case IEEE754_CLASS_SNAN:
-		ieee754_setcx(IEEE754_INVALID_OPERATION);
+	/*
+	 * Handle the cases when at least one of x, y or z is a NaN.
+	 * Order of precedence is sNaN, qNaN and z, x, y.
+	 */
+	if (zc == IEEE754_CLASS_SNAN)
 		return ieee754sp_nanxcpt(z);
-	case IEEE754_CLASS_DNORM:
-		SPDNORMZ;
-	/* QNAN and ZERO cases are handled separately below */
-	}
-
-	switch (CLPAIR(xc, yc)) {
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_SNAN):
+	if (xc == IEEE754_CLASS_SNAN)
+		return ieee754sp_nanxcpt(x);
+	if (yc == IEEE754_CLASS_SNAN)
 		return ieee754sp_nanxcpt(y);
+	if (zc == IEEE754_CLASS_QNAN)
+		return z;
+	if (xc == IEEE754_CLASS_QNAN)
+		return x;
+	if (yc == IEEE754_CLASS_QNAN)
+		return y;
 
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_SNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_SNAN, IEEE754_CLASS_INF):
-		return ieee754sp_nanxcpt(x);
+	if (zc == IEEE754_CLASS_DNORM)
+		SPDNORMZ;
+	/* ZERO z cases are handled separately below */
 
-	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_QNAN):
-		return y;
+	switch (CLPAIR(xc, yc)) {
 
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_QNAN):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_ZERO):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_NORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_DNORM):
-	case CLPAIR(IEEE754_CLASS_QNAN, IEEE754_CLASS_INF):
-		return x;
 
 	/*
 	 * Infinity handling
 	 */
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
 		ieee754_setcx(IEEE754_INVALID_OPERATION);
 		return ieee754sp_indef();
 
@@ -101,9 +76,27 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_NORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_DNORM):
 	case CLPAIR(IEEE754_CLASS_INF, IEEE754_CLASS_INF):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		return ieee754sp_inf(xs ^ ys);
+		if ((zc == IEEE754_CLASS_INF) &&
+		    ((!(flags & MADDF_NEGATE_PRODUCT) && (zs != (xs ^ ys))) ||
+		     ((flags & MADDF_NEGATE_PRODUCT) && (zs == (xs ^ ys))))) {
+			/*
+			 * Cases of addition of infinities with opposite signs
+			 * or subtraction of infinities with same signs.
+			 */
+			ieee754_setcx(IEEE754_INVALID_OPERATION);
+			return ieee754sp_indef();
+		}
+		/*
+		 * z is here either not an infinity, or an infinity having the
+		 * same sign as product (x*y) (in case of MADDF.D instruction)
+		 * or product -(x*y) (in MSUBF.D case). The result must be an
+		 * infinity, and its sign is determined only by the value of
+		 * (flags & MADDF_NEGATE_PRODUCT) and the signs of x and y.
+		 */
+		if (flags & MADDF_NEGATE_PRODUCT)
+			return ieee754sp_inf(1 ^ (xs ^ ys));
+		else
+			return ieee754sp_inf(xs ^ ys);
 
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_ZERO):
 	case CLPAIR(IEEE754_CLASS_ZERO, IEEE754_CLASS_NORM):
@@ -112,32 +105,42 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_ZERO):
 		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
-		/* Multiplication is 0 so just return z */
+		if (zc == IEEE754_CLASS_ZERO) {
+			/* Handle cases +0 + (-0) and similar ones. */
+			if ((!(flags & MADDF_NEGATE_PRODUCT)
+					&& (zs == (xs ^ ys))) ||
+			    ((flags & MADDF_NEGATE_PRODUCT)
+					&& (zs != (xs ^ ys))))
+				/*
+				 * Cases of addition of zeros of equal signs
+				 * or subtraction of zeroes of opposite signs.
+				 * The sign of the resulting zero is in any
+				 * such case determined only by the sign of z.
+				 */
+				return z;
+
+			return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
+		}
+		/* x*y is here 0, and z is not 0, so just return z */
 		return z;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_DNORM):
 		SPDNORMX;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_DNORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
 		SPDNORMY;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_DNORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
 		SPDNORMX;
 		break;
 
 	case CLPAIR(IEEE754_CLASS_NORM, IEEE754_CLASS_NORM):
-		if (zc == IEEE754_CLASS_QNAN)
-			return z;
-		else if (zc == IEEE754_CLASS_INF)
+		if (zc == IEEE754_CLASS_INF)
 			return ieee754sp_inf(zs);
 		/* fall through to real computations */
 	}
@@ -158,111 +161,93 @@ static union ieee754sp _sp_maddf(union ieee754sp z, union ieee754sp x,
 
 	re = xe + ye;
 	rs = xs ^ ys;
-	if (flags & maddf_negate_product)
+	if (flags & MADDF_NEGATE_PRODUCT)
 		rs ^= 1;
 
-	/* shunt to top of word */
-	xm <<= 32 - (SP_FBITS + 1);
-	ym <<= 32 - (SP_FBITS + 1);
-
-	/*
-	 * Multiply 32 bits xm, ym to give high 32 bits rm with stickness.
-	 */
-	lxm = xm & 0xffff;
-	hxm = xm >> 16;
-	lym = ym & 0xffff;
-	hym = ym >> 16;
-
-	lrm = lxm * lym;	/* 16 * 16 => 32 */
-	hrm = hxm * hym;	/* 16 * 16 => 32 */
-
-	t = lxm * hym; /* 16 * 16 => 32 */
-	at = lrm + (t << 16);
-	hrm += at < lrm;
-	lrm = at;
-	hrm = hrm + (t >> 16);
+	/* Multiple 24 bit xm and ym to give 48 bit results */
+	rm64 = (uint64_t)xm * ym;
 
-	t = hxm * lym; /* 16 * 16 => 32 */
-	at = lrm + (t << 16);
-	hrm += at < lrm;
-	lrm = at;
-	hrm = hrm + (t >> 16);
+	/* Shunt to top of word */
+	rm64 = rm64 << 16;
 
-	rm = hrm | (lrm != 0);
-
-	/*
-	 * Sticky shift down to normal rounding precision.
-	 */
-	if ((int) rm < 0) {
-		rm = (rm >> (32 - (SP_FBITS + 1 + 3))) |
-		    ((rm << (SP_FBITS + 1 + 3)) != 0);
+	/* Put explicit bit at bit 62 if necessary */
+	if ((int64_t) rm64 < 0) {
+		rm64 = rm64 >> 1;
 		re++;
-	} else {
-		rm = (rm >> (32 - (SP_FBITS + 1 + 3 + 1))) |
-		     ((rm << (SP_FBITS + 1 + 3 + 1)) != 0);
 	}
-	assert(rm & (SP_HIDDEN_BIT << 3));
-
-	if (zc == IEEE754_CLASS_ZERO)
-		return ieee754sp_format(rs, re, rm);
 
-	/* And now the addition */
+	assert(rm64 & (1 << 62));
 
-	assert(zm & SP_HIDDEN_BIT);
+	if (zc == IEEE754_CLASS_ZERO) {
+		/*
+		 * Move explicit bit from bit 62 to bit 26 since the
+		 * ieee754sp_format code expects the mantissa to be
+		 * 27 bits wide (24 + 3 rounding bits).
+		 */
+		rm = XSPSRS64(rm64, (62 - 26));
+		return ieee754sp_format(rs, re, rm);
+	}
 
-	/*
-	 * Provide guard,round and stick bit space.
-	 */
-	zm <<= 3;
+	/* Move explicit bit from bit 23 to bit 62 */
+	zm64 = (uint64_t)zm << (62 - 23);
+	assert(zm64 & (1 << 62));
 
+	/* Make the exponents the same */
 	if (ze > re) {
 		/*
 		 * Have to shift r fraction right to align.
 		 */
 		s = ze - re;
-		rm = XSPSRS(rm, s);
+		rm64 = XSPSRS64(rm64, s);
 		re += s;
 	} else if (re > ze) {
 		/*
 		 * Have to shift z fraction right to align.
 		 */
 		s = re - ze;
-		zm = XSPSRS(zm, s);
+		zm64 = XSPSRS64(zm64, s);
 		ze += s;
 	}
 	assert(ze == re);
 	assert(ze <= SP_EMAX);
 
+	/* Do the addition */
 	if (zs == rs) {
 		/*
-		 * Generate 28 bit result of adding two 27 bit numbers
-		 * leaving result in zm, zs and ze.
+		 * Generate 64 bit result by adding two 63 bit numbers
+		 * leaving result in zm64, zs and ze.
 		 */
-		zm = zm + rm;
-
-		if (zm >> (SP_FBITS + 1 + 3)) { /* carry out */
-			zm = XSPSRS1(zm);
+		zm64 = zm64 + rm64;
+		if ((int64_t)zm64 < 0) {	/* carry out */
+			zm64 = XSPSRS1(zm64);
 			ze++;
 		}
 	} else {
-		if (zm >= rm) {
-			zm = zm - rm;
+		if (zm64 >= rm64) {
+			zm64 = zm64 - rm64;
 		} else {
-			zm = rm - zm;
+			zm64 = rm64 - zm64;
 			zs = rs;
 		}
-		if (zm == 0)
+		if (zm64 == 0)
 			return ieee754sp_zero(ieee754_csr.rm == FPU_CSR_RD);
 
 		/*
-		 * Normalize in extended single precision
+		 * Put explicit bit at bit 62 if necessary.
 		 */
-		while ((zm >> (SP_MBITS + 3)) == 0) {
-			zm <<= 1;
+		while ((zm64 >> 62) == 0) {
+			zm64 <<= 1;
 			ze--;
 		}
-
 	}
+
+	/*
+	 * Move explicit bit from bit 62 to bit 26 since the
+	 * ieee754sp_format code expects the mantissa to be
+	 * 27 bits wide (24 + 3 rounding bits).
+	 */
+	zm = XSPSRS64(zm64, (62 - 26));
+
 	return ieee754sp_format(zs, ze, zm);
 }
 
@@ -275,5 +260,5 @@ union ieee754sp ieee754sp_maddf(union ieee754sp z, union ieee754sp x,
 union ieee754sp ieee754sp_msubf(union ieee754sp z, union ieee754sp x,
 				union ieee754sp y)
 {
-	return _sp_maddf(z, x, y, maddf_negate_product);
+	return _sp_maddf(z, x, y, MADDF_NEGATE_PRODUCT);
 }
diff --git a/arch/mips/math-emu/sp_rint.c b/arch/mips/math-emu/sp_rint.c
new file mode 100644
index 000000000000..70765b17e196
--- /dev/null
+++ b/arch/mips/math-emu/sp_rint.c
@@ -0,0 +1,90 @@
+/* IEEE754 floating point arithmetic
+ * single precision
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ * Copyright (C) 2017 Imagination Technologies, Ltd.
+ * Author: Aleksandar Markovic <aleksandar.markovic@imgtec.com>
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_rint(union ieee754sp x)
+{
+	union ieee754sp ret;
+	u32 residue;
+	int sticky;
+	int round;
+	int odd;
+
+	COMPXDP;		/* <-- DP needed for 64-bit mantissa tmp */
+
+	ieee754_clearcx();
+
+	EXPLODEXSP;
+	FLUSHXSP;
+
+	if (xc == IEEE754_CLASS_SNAN)
+		return ieee754sp_nanxcpt(x);
+
+	if ((xc == IEEE754_CLASS_QNAN) ||
+	    (xc == IEEE754_CLASS_INF) ||
+	    (xc == IEEE754_CLASS_ZERO))
+		return x;
+
+	if (xe >= SP_FBITS)
+		return x;
+
+	if (xe < -1) {
+		residue = xm;
+		round = 0;
+		sticky = residue != 0;
+		xm = 0;
+	} else {
+		residue = xm << (xe + 1);
+		residue <<= 31 - SP_FBITS;
+		round = (residue >> 31) != 0;
+		sticky = (residue << 1) != 0;
+		xm >>= SP_FBITS - xe;
+	}
+
+	odd = (xm & 0x1) != 0x0;
+
+	switch (ieee754_csr.rm) {
+	case FPU_CSR_RN:	/* toward nearest */
+		if (round && (sticky || odd))
+			xm++;
+		break;
+	case FPU_CSR_RZ:	/* toward zero */
+		break;
+	case FPU_CSR_RU:	/* toward +infinity */
+		if ((round || sticky) && !xs)
+			xm++;
+		break;
+	case FPU_CSR_RD:	/* toward -infinity */
+		if ((round || sticky) && xs)
+			xm++;
+		break;
+	}
+
+	if (round || sticky)
+		ieee754_setcx(IEEE754_INEXACT);
+
+	ret = ieee754sp_flong(xm);
+	SPSIGN(ret) = xs;
+
+	return ret;
+}
diff --git a/arch/mips/mm/Makefile b/arch/mips/mm/Makefile
index b4cc8811a664..c463bdad45c7 100644
--- a/arch/mips/mm/Makefile
+++ b/arch/mips/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/MIPS-specific parts of the memory manager.
 #
diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c
index 21e4e662c1fa..3466fcdae0ca 100644
--- a/arch/mips/mm/c-r3k.c
+++ b/arch/mips/mm/c-r3k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * r2300.c: R2000 and R3000 specific mmu/cache code.
  *
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 81d6a15c93d0..6f534b209971 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -37,7 +37,7 @@
 #include <asm/cacheflush.h> /* for run_uncached() */
 #include <asm/traps.h>
 #include <asm/dma-coherence.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 
 /*
  * Bits describing what cache ops an SMP callback function may perform.
diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c
index 5c282583edf1..5f6c099a9457 100644
--- a/arch/mips/mm/c-tx39.c
+++ b/arch/mips/mm/c-tx39.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * r2300.c: R2000 and R3000 specific mmu/cache code.
  *
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 899e46279902..44ac64d51827 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -20,6 +20,7 @@
 #include <asm/processor.h>
 #include <asm/cpu.h>
 #include <asm/cpu-features.h>
+#include <asm/setup.h>
 
 /* Cache operations. */
 void (*flush_cache_all)(void);
@@ -44,7 +45,6 @@ void (*__flush_cache_vunmap)(void);
 
 void (*__flush_kernel_vmap_range)(unsigned long vaddr, int size);
 EXPORT_SYMBOL_GPL(__flush_kernel_vmap_range);
-void (*__invalidate_kernel_vmap_range)(unsigned long vaddr, int size);
 
 /* MIPS specific cache operations */
 void (*flush_cache_sigtramp)(unsigned long addr);
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 8e78251eccc2..c01bd20d0208 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -127,23 +127,6 @@ static gfp_t massage_gfp_flags(const struct device *dev, gfp_t gfp)
 	return gfp | dma_flag;
 }
 
-static void *mips_dma_alloc_noncoherent(struct device *dev, size_t size,
-	dma_addr_t * dma_handle, gfp_t gfp)
-{
-	void *ret;
-
-	gfp = massage_gfp_flags(dev, gfp);
-
-	ret = (void *) __get_free_pages(gfp, get_order(size));
-
-	if (ret != NULL) {
-		memset(ret, 0, size);
-		*dma_handle = plat_map_dma_mem(dev, ret, size);
-	}
-
-	return ret;
-}
-
 static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	dma_addr_t *dma_handle, gfp_t gfp, unsigned long attrs)
 {
@@ -151,13 +134,6 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	struct page *page = NULL;
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 
-	/*
-	 * XXX: seems like the coherent and non-coherent implementations could
-	 * be consolidated.
-	 */
-	if (attrs & DMA_ATTR_NON_CONSISTENT)
-		return mips_dma_alloc_noncoherent(dev, size, dma_handle, gfp);
-
 	gfp = massage_gfp_flags(dev, gfp);
 
 	if (IS_ENABLED(CONFIG_DMA_CMA) && gfpflags_allow_blocking(gfp))
@@ -172,7 +148,8 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	ret = page_address(page);
 	memset(ret, 0, size);
 	*dma_handle = plat_map_dma_mem(dev, ret, size);
-	if (!plat_device_is_coherent(dev)) {
+	if (!(attrs & DMA_ATTR_NON_CONSISTENT) &&
+	    !plat_device_is_coherent(dev)) {
 		dma_cache_wback_inv((unsigned long) ret, size);
 		ret = UNCAC_ADDR(ret);
 	}
@@ -180,14 +157,6 @@ static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
 	return ret;
 }
 
-
-static void mips_dma_free_noncoherent(struct device *dev, size_t size,
-		void *vaddr, dma_addr_t dma_handle)
-{
-	plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
-	free_pages((unsigned long) vaddr, get_order(size));
-}
-
 static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 	dma_addr_t dma_handle, unsigned long attrs)
 {
@@ -195,14 +164,9 @@ static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
 	unsigned int count = PAGE_ALIGN(size) >> PAGE_SHIFT;
 	struct page *page = NULL;
 
-	if (attrs & DMA_ATTR_NON_CONSISTENT) {
-		mips_dma_free_noncoherent(dev, size, vaddr, dma_handle);
-		return;
-	}
-
 	plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
 
-	if (!plat_device_is_coherent(dev))
+	if (!(attrs & DMA_ATTR_NON_CONSISTENT) && !plat_device_is_coherent(dev))
 		addr = CAC_ADDR(addr);
 
 	page = virt_to_page((void *) addr);
@@ -409,12 +373,12 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
 	}
 }
 
-int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+static int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
 	return 0;
 }
 
-int mips_dma_supported(struct device *dev, u64 mask)
+static int mips_dma_supported(struct device *dev, u64 mask)
 {
 	return plat_dma_supported(dev, mask);
 }
diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c
index d8c3c159289a..1e4658eee13f 100644
--- a/arch/mips/mm/gup.c
+++ b/arch/mips/mm/gup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Lockless get_user_pages_fast for MIPS
  *
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index f13f51003bd8..d08e6d7d533b 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/init.h>
 #include <linux/export.h>
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 8ce2983a7015..5f6ea7d746de 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -31,6 +31,7 @@
 #include <linux/gfp.h>
 #include <linux/kcore.h>
 #include <linux/export.h>
+#include <linux/initrd.h>
 
 #include <asm/asm-offsets.h>
 #include <asm/bootinfo.h>
diff --git a/arch/mips/mm/mmap.c b/arch/mips/mm/mmap.c
index 28adeabe851f..33d3251ecd37 100644
--- a/arch/mips/mm/mmap.c
+++ b/arch/mips/mm/mmap.c
@@ -7,6 +7,7 @@
  *   written by Ralf Baechle <ralf@linux-mips.org>
  */
 #include <linux/compiler.h>
+#include <linux/elf-randomize.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
 #include <linux/mman.h>
diff --git a/arch/mips/mm/sc-debugfs.c b/arch/mips/mm/sc-debugfs.c
index 7e945e310b44..2e2132d3f5c7 100644
--- a/arch/mips/mm/sc-debugfs.c
+++ b/arch/mips/mm/sc-debugfs.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/mm/sc-ip22.c b/arch/mips/mm/sc-ip22.c
index f293a97cb885..ea059cd86496 100644
--- a/arch/mips/mm/sc-ip22.c
+++ b/arch/mips/mm/sc-ip22.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sc-ip22.c: Indy cache management functions.
  *
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index c909c3342729..548acb7f8557 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2006 Chris Dearman (chris@mips.com),
  */
@@ -14,7 +15,7 @@
 #include <asm/pgtable.h>
 #include <asm/mmu_context.h>
 #include <asm/r4kcache.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 
 /*
  * MIPS32/MIPS64 L2 cache handling
@@ -63,34 +64,25 @@ static void mips_sc_prefetch_enable(void)
 	 * prefetching for both code & data, for all ports.
 	 */
 	pftctl = read_gcr_l2_pft_control();
-	if (pftctl & CM_GCR_L2_PFT_CONTROL_NPFT_MSK) {
-		pftctl &= ~CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK;
-		pftctl |= PAGE_MASK & CM_GCR_L2_PFT_CONTROL_PAGEMASK_MSK;
-		pftctl |= CM_GCR_L2_PFT_CONTROL_PFTEN_MSK;
+	if (pftctl & CM_GCR_L2_PFT_CONTROL_NPFT) {
+		pftctl &= ~CM_GCR_L2_PFT_CONTROL_PAGEMASK;
+		pftctl |= PAGE_MASK & CM_GCR_L2_PFT_CONTROL_PAGEMASK;
+		pftctl |= CM_GCR_L2_PFT_CONTROL_PFTEN;
 		write_gcr_l2_pft_control(pftctl);
 
-		pftctl = read_gcr_l2_pft_control_b();
-		pftctl |= CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK;
-		pftctl |= CM_GCR_L2_PFT_CONTROL_B_CEN_MSK;
-		write_gcr_l2_pft_control_b(pftctl);
+		set_gcr_l2_pft_control_b(CM_GCR_L2_PFT_CONTROL_B_PORTID |
+					 CM_GCR_L2_PFT_CONTROL_B_CEN);
 	}
 }
 
 static void mips_sc_prefetch_disable(void)
 {
-	unsigned long pftctl;
-
 	if (mips_cm_revision() < CM_REV_CM2_5)
 		return;
 
-	pftctl = read_gcr_l2_pft_control();
-	pftctl &= ~CM_GCR_L2_PFT_CONTROL_PFTEN_MSK;
-	write_gcr_l2_pft_control(pftctl);
-
-	pftctl = read_gcr_l2_pft_control_b();
-	pftctl &= ~CM_GCR_L2_PFT_CONTROL_B_PORTID_MSK;
-	pftctl &= ~CM_GCR_L2_PFT_CONTROL_B_CEN_MSK;
-	write_gcr_l2_pft_control_b(pftctl);
+	clear_gcr_l2_pft_control(CM_GCR_L2_PFT_CONTROL_PFTEN);
+	clear_gcr_l2_pft_control_b(CM_GCR_L2_PFT_CONTROL_B_PORTID |
+				   CM_GCR_L2_PFT_CONTROL_B_CEN);
 }
 
 static bool mips_sc_prefetch_is_enabled(void)
@@ -101,9 +93,9 @@ static bool mips_sc_prefetch_is_enabled(void)
 		return false;
 
 	pftctl = read_gcr_l2_pft_control();
-	if (!(pftctl & CM_GCR_L2_PFT_CONTROL_NPFT_MSK))
+	if (!(pftctl & CM_GCR_L2_PFT_CONTROL_NPFT))
 		return false;
-	return !!(pftctl & CM_GCR_L2_PFT_CONTROL_PFTEN_MSK);
+	return !!(pftctl & CM_GCR_L2_PFT_CONTROL_PFTEN);
 }
 
 static struct bcache_ops mips_sc_ops = {
@@ -160,21 +152,21 @@ static int __init mips_sc_probe_cm3(void)
 	unsigned long cfg = read_gcr_l2_config();
 	unsigned long sets, line_sz, assoc;
 
-	if (cfg & CM_GCR_L2_CONFIG_BYPASS_MSK)
+	if (cfg & CM_GCR_L2_CONFIG_BYPASS)
 		return 0;
 
-	sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE_MSK;
-	sets >>= CM_GCR_L2_CONFIG_SET_SIZE_SHF;
+	sets = cfg & CM_GCR_L2_CONFIG_SET_SIZE;
+	sets >>= __ffs(CM_GCR_L2_CONFIG_SET_SIZE);
 	if (sets)
 		c->scache.sets = 64 << sets;
 
-	line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE_MSK;
-	line_sz >>= CM_GCR_L2_CONFIG_LINE_SIZE_SHF;
+	line_sz = cfg & CM_GCR_L2_CONFIG_LINE_SIZE;
+	line_sz >>= __ffs(CM_GCR_L2_CONFIG_LINE_SIZE);
 	if (line_sz)
 		c->scache.linesz = 2 << line_sz;
 
-	assoc = cfg & CM_GCR_L2_CONFIG_ASSOC_MSK;
-	assoc >>= CM_GCR_L2_CONFIG_ASSOC_SHF;
+	assoc = cfg & CM_GCR_L2_CONFIG_ASSOC;
+	assoc >>= __ffs(CM_GCR_L2_CONFIG_ASSOC);
 	c->scache.ways = assoc + 1;
 	c->scache.waysize = c->scache.sets * c->scache.linesz;
 	c->scache.waybit = __ffs(c->scache.waysize);
diff --git a/arch/mips/mm/sc-r5k.c b/arch/mips/mm/sc-r5k.c
index 751b5cd18bf2..c7b94c951d98 100644
--- a/arch/mips/mm/sc-r5k.c
+++ b/arch/mips/mm/sc-r5k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 1997, 2001 Ralf Baechle (ralf@gnu.org),
  * derived from r4xx0.c by David S. Miller (davem@davemloft.net).
diff --git a/arch/mips/mm/sc-rm7k.c b/arch/mips/mm/sc-rm7k.c
index 78f900c59276..e9e3777a7848 100644
--- a/arch/mips/mm/sc-rm7k.c
+++ b/arch/mips/mm/sc-rm7k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sc-rm7k.c: RM7000 cache management functions.
  *
diff --git a/arch/mips/mm/tlb-r3k.c b/arch/mips/mm/tlb-r3k.c
index 1290b995695d..6f589e0112ce 100644
--- a/arch/mips/mm/tlb-r3k.c
+++ b/arch/mips/mm/tlb-r3k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * r2300.c: R2000 and R3000 specific mmu/cache code.
  *
diff --git a/arch/mips/mm/tlbex-fault.S b/arch/mips/mm/tlbex-fault.S
index 318855eb5f80..77db401fc620 100644
--- a/arch/mips/mm/tlbex-fault.S
+++ b/arch/mips/mm/tlbex-fault.S
@@ -12,14 +12,15 @@
 
 	.macro tlb_do_page_fault, write
 	NESTED(tlb_do_page_fault_\write, PT_SIZE, sp)
-	SAVE_ALL
+	.cfi_signal_frame
+	SAVE_ALL docfi=1
 	MFC0	a2, CP0_BADVADDR
 	KMODE
 	move	a0, sp
 	REG_S	a2, PT_BVADDR(sp)
 	li	a1, \write
-	PTR_LA	ra, ret_from_exception
-	j	do_page_fault
+	jal	do_page_fault
+	j	ret_from_exception
 	END(tlb_do_page_fault_\write)
 	.endm
 
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 5aadc69c8ce3..79b9f2ad3ff5 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -2634,11 +2634,6 @@ void build_tlb_refill_handler(void)
 #endif
 		break;
 
-	case CPU_R6000:
-	case CPU_R6000A:
-		panic("No R6000 TLB refill handler yet");
-		break;
-
 	case CPU_R8000:
 		panic("No R8000 TLB refill handler yet");
 		break;
diff --git a/arch/mips/mm/uasm-micromips.c b/arch/mips/mm/uasm-micromips.c
index c28ff53c8da0..cdb5a191b9d5 100644
--- a/arch/mips/mm/uasm-micromips.c
+++ b/arch/mips/mm/uasm-micromips.c
@@ -80,7 +80,7 @@ static const struct insn const insn_table_MM[insn_invalid] = {
 	[insn_jr]	= {M(mm_pool32a_op, 0, 0, 0, mm_jalr_op, mm_pool32axf_op), RS},
 	[insn_lb]	= {M(mm_lb32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
 	[insn_ld]	= {0, 0},
-	[insn_lh]	= {M(mm_lh32_op, 0, 0, 0, 0, 0), RS | RS | SIMM},
+	[insn_lh]	= {M(mm_lh32_op, 0, 0, 0, 0, 0), RT | RS | SIMM},
 	[insn_ll]	= {M(mm_pool32c_op, 0, 0, (mm_ll_func << 1), 0, 0), RS | RT | SIMM},
 	[insn_lld]	= {0, 0},
 	[insn_lui]	= {M(mm_pool32i_op, mm_lui_op, 0, 0, 0, 0), RS | SIMM},
diff --git a/arch/mips/mti-malta/Makefile b/arch/mips/mti-malta/Makefile
index 5827af77c18e..63940bdce698 100644
--- a/arch/mips/mti-malta/Makefile
+++ b/arch/mips/mti-malta/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Carsten Langgaard, carstenl@mips.com
 # Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
diff --git a/arch/mips/mti-malta/malta-display.c b/arch/mips/mti-malta/malta-display.c
index d4f807191ecd..063de44675ce 100644
--- a/arch/mips/mti-malta/malta-display.c
+++ b/arch/mips/mti-malta/malta-display.c
@@ -36,10 +36,10 @@ void mips_display_message(const char *str)
 	}
 }
 
-static void scroll_display_message(unsigned long data);
-static DEFINE_TIMER(mips_scroll_timer, scroll_display_message, HZ, 0);
+static void scroll_display_message(unsigned long unused);
+static DEFINE_TIMER(mips_scroll_timer, scroll_display_message);
 
-static void scroll_display_message(unsigned long data)
+static void scroll_display_message(unsigned long unused)
 {
 	mips_display_message(&display_string[display_count++]);
 	if (display_count == max_display_count)
diff --git a/arch/mips/mti-malta/malta-dt.c b/arch/mips/mti-malta/malta-dt.c
index 4822943100f3..b397117033aa 100644
--- a/arch/mips/mti-malta/malta-dt.c
+++ b/arch/mips/mti-malta/malta-dt.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/mti-malta/malta-dtshim.c b/arch/mips/mti-malta/malta-dtshim.c
index c398582c316f..7859b6e49863 100644
--- a/arch/mips/mti-malta/malta-dtshim.c
+++ b/arch/mips/mti-malta/malta-dtshim.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -18,7 +18,7 @@
 #include <asm/fw/fw.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/malta.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 #include <asm/page.h>
 
 #define ROCIT_REG_BASE			0x1f403000
@@ -236,7 +236,7 @@ static void __init remove_gic(void *fdt)
 
 	/* if we have a CM which reports a GIC is present, leave the DT alone */
 	err = mips_cm_probe();
-	if (!err && (read_gcr_gic_status() & CM_GCR_GIC_STATUS_GICEX_MSK))
+	if (!err && (read_gcr_gic_status() & CM_GCR_GIC_STATUS_EX))
 		return;
 
 	if (malta_scon() == MIPS_REVISION_SCON_ROCIT) {
diff --git a/arch/mips/mti-malta/malta-init.c b/arch/mips/mti-malta/malta-init.c
index 0f3b881a3190..009f2918b320 100644
--- a/arch/mips/mti-malta/malta-init.c
+++ b/arch/mips/mti-malta/malta-init.c
@@ -21,8 +21,7 @@
 #include <asm/smp-ops.h>
 #include <asm/traps.h>
 #include <asm/fw/fw.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/malta.h>
 
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index b0f9b188e833..a840e0c1642c 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -19,7 +19,6 @@
 #include <linux/smp.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/of_irq.h>
 #include <linux/kernel_stat.h>
 #include <linux/kernel.h>
@@ -29,9 +28,9 @@
 #include <asm/i8259.h>
 #include <asm/irq_cpu.h>
 #include <asm/irq_regs.h>
-#include <asm/mips-cm.h>
 #include <asm/mips-boards/malta.h>
 #include <asm/mips-boards/maltaint.h>
+#include <asm/mips-cps.h>
 #include <asm/gt64120.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/msc01_pci.h>
@@ -215,7 +214,7 @@ void __init arch_init_irq(void)
 					msc_nr_irqs);
 	}
 
-	if (gic_present) {
+	if (mips_gic_present()) {
 		corehi_irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_COREHI;
 	} else if (cpu_has_veic) {
 		set_vi_handler(MSC01E_INT_COREHI, corehi_irqdispatch);
diff --git a/arch/mips/mti-malta/malta-pm.c b/arch/mips/mti-malta/malta-pm.c
index c1e456c01a44..efbd659fb602 100644
--- a/arch/mips/mti-malta/malta-pm.c
+++ b/arch/mips/mti-malta/malta-pm.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/arch/mips/mti-malta/malta-setup.c b/arch/mips/mti-malta/malta-setup.c
index a01d5debfcaf..de34adb76157 100644
--- a/arch/mips/mti-malta/malta-setup.c
+++ b/arch/mips/mti-malta/malta-setup.c
@@ -28,7 +28,7 @@
 
 #include <asm/fw/fw.h>
 #include <asm/mach-malta/malta-dtshim.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/malta.h>
 #include <asm/mips-boards/maltaint.h>
@@ -128,7 +128,7 @@ static int __init plat_enable_iocoherency(void)
 				 BONITO_PCIMEMBASECFG_MEMBASE1_CACHED);
 			pr_info("Enabled Bonito IOBC coherency\n");
 		}
-	} else if (mips_cm_numiocu() != 0) {
+	} else if (mips_cps_numiocu(0) != 0) {
 		/* Nothing special needs to be done to enable coherency */
 		pr_info("CMP IOCU detected\n");
 		cfg = __raw_readl((u32 *)CKSEG1ADDR(ROCIT_CONFIG_GEN0));
diff --git a/arch/mips/mti-malta/malta-time.c b/arch/mips/mti-malta/malta-time.c
index cea4ec909806..66c866740ff2 100644
--- a/arch/mips/mti-malta/malta-time.c
+++ b/arch/mips/mti-malta/malta-time.c
@@ -26,7 +26,6 @@
 #include <linux/sched.h>
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/timex.h>
 #include <linux/mc146818rtc.h>
 
@@ -40,6 +39,7 @@
 #include <asm/time.h>
 #include <asm/mc146818-time.h>
 #include <asm/msc01_ic.h>
+#include <asm/mips-cps.h>
 
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/maltaint.h>
@@ -85,8 +85,8 @@ static void __init estimate_frequencies(void)
 
 	local_irq_save(flags);
 
-	if (gic_present)
-		gic_start_count();
+	if (mips_gic_present())
+		clear_gic_config(GIC_CONFIG_COUNTSTOP);
 
 	/*
 	 * Read counters exactly on rising edge of update flag.
@@ -95,8 +95,8 @@ static void __init estimate_frequencies(void)
 	while (CMOS_READ(RTC_REG_A) & RTC_UIP);
 	while (!(CMOS_READ(RTC_REG_A) & RTC_UIP));
 	start = read_c0_count();
-	if (gic_present)
-		gicstart = gic_read_count();
+	if (mips_gic_present())
+		gicstart = read_gic_counter();
 
 	/* Wait for falling edge before reading RTC. */
 	while (CMOS_READ(RTC_REG_A) & RTC_UIP);
@@ -105,8 +105,8 @@ static void __init estimate_frequencies(void)
 	/* Read counters again exactly on rising edge of update flag. */
 	while (!(CMOS_READ(RTC_REG_A) & RTC_UIP));
 	count = read_c0_count();
-	if (gic_present)
-		giccount = gic_read_count();
+	if (mips_gic_present())
+		giccount = read_gic_counter();
 
 	/* Wait for falling edge before reading RTC again. */
 	while (CMOS_READ(RTC_REG_A) & RTC_UIP);
@@ -128,7 +128,7 @@ static void __init estimate_frequencies(void)
 	count /= secs;
 	mips_hpt_frequency = count;
 
-	if (gic_present) {
+	if (mips_gic_present()) {
 		giccount = div_u64(giccount - gicstart, secs);
 		gic_frequency = giccount;
 	}
@@ -154,7 +154,7 @@ int get_c0_fdc_int(void)
 
 	if (cpu_has_veic)
 		return -1;
-	else if (gic_present)
+	else if (mips_gic_present())
 		return gic_get_c0_fdc_int();
 	else if (cp0_fdc_irq >= 0)
 		return MIPS_CPU_IRQ_BASE + cp0_fdc_irq;
@@ -167,7 +167,7 @@ int get_c0_perfcount_int(void)
 	if (cpu_has_veic) {
 		set_vi_handler(MSC01E_INT_PERFCTR, mips_perf_dispatch);
 		mips_cpu_perf_irq = MSC01E_INT_BASE + MSC01E_INT_PERFCTR;
-	} else if (gic_present) {
+	} else if (mips_gic_present()) {
 		mips_cpu_perf_irq = gic_get_c0_perfcount_int();
 	} else if (cp0_perfcount_irq >= 0) {
 		mips_cpu_perf_irq = MIPS_CPU_IRQ_BASE + cp0_perfcount_irq;
@@ -184,7 +184,7 @@ unsigned int get_c0_compare_int(void)
 	if (cpu_has_veic) {
 		set_vi_handler(MSC01E_INT_CPUCTR, mips_timer_dispatch);
 		mips_cpu_timer_irq = MSC01E_INT_BASE + MSC01E_INT_CPUCTR;
-	} else if (gic_present) {
+	} else if (mips_gic_present()) {
 		mips_cpu_timer_irq = gic_get_c0_compare_int();
 	} else {
 		mips_cpu_timer_irq = MIPS_CPU_IRQ_BASE + cp0_compare_irq;
@@ -258,8 +258,7 @@ void __init plat_time_init(void)
 	setup_pit_timer();
 #endif
 
-#ifdef CONFIG_MIPS_GIC
-	if (gic_present) {
+	if (mips_gic_present()) {
 		freq = freqround(gic_frequency, 5000);
 		printk("GIC frequency %d.%02d MHz\n", freq/1000000,
 		       (freq%1000000)*100/1000000);
@@ -268,5 +267,4 @@ void __init plat_time_init(void)
 		timer_probe();
 #endif
 	}
-#endif
 }
diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c
index 7646891c4e9b..962b0259b4b6 100644
--- a/arch/mips/net/ebpf_jit.c
+++ b/arch/mips/net/ebpf_jit.c
@@ -667,7 +667,7 @@ static int build_one_insn(const struct bpf_insn *insn, struct jit_ctx *ctx,
 {
 	int src, dst, r, td, ts, mem_off, b_off;
 	bool need_swap, did_move, cmp_eq;
-	unsigned int target;
+	unsigned int target = 0;
 	u64 t64;
 	s64 t64s;
 	int bpf_op = BPF_OP(insn->code);
@@ -1513,7 +1513,7 @@ ld_skb_common:
 		}
 		src = ebpf_to_mips_reg(ctx, insn, src_reg_no_fp);
 		if (src < 0)
-			return dst;
+			return src;
 		if (BPF_MODE(insn->code) == BPF_XADD) {
 			switch (BPF_SIZE(insn->code)) {
 			case BPF_W:
diff --git a/arch/mips/netlogic/Kconfig b/arch/mips/netlogic/Kconfig
index fb00606e352d..8296b13affd2 100644
--- a/arch/mips/netlogic/Kconfig
+++ b/arch/mips/netlogic/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if NLM_XLP_BOARD || NLM_XLR_BOARD
 
 if NLM_XLP_BOARD
diff --git a/arch/mips/netlogic/common/Makefile b/arch/mips/netlogic/common/Makefile
index 362739d62b1d..60d00b5d748e 100644
--- a/arch/mips/netlogic/common/Makefile
+++ b/arch/mips/netlogic/common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				+= irq.o time.o
 obj-y				+= nlm-dma.o
 obj-y				+= reset.o
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index bddf1ef553a4..39a300bd6cc2 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -122,7 +122,7 @@ static void nlm_init_secondary(void)
 	int hwtid;
 
 	hwtid = hard_smp_processor_id();
-	current_cpu_data.core = hwtid / NLM_THREADS_PER_CORE;
+	cpu_set_core(&current_cpu_data, hwtid / NLM_THREADS_PER_CORE);
 	current_cpu_data.package = nlm_nodeid();
 	nlm_percpu_init(hwtid);
 	nlm_smp_irq_init(hwtid);
@@ -147,7 +147,7 @@ unsigned long nlm_next_gp;
 unsigned long nlm_next_sp;
 static cpumask_t phys_cpu_present_mask;
 
-void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
+int nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
 {
 	uint64_t picbase;
 	int hwtid;
@@ -161,6 +161,8 @@ void nlm_boot_secondary(int logical_cpu, struct task_struct *idle)
 	/* barrier for sp/gp store above */
 	__sync();
 	nlm_pic_send_ipi(picbase, hwtid, 1, 1);  /* NMI */
+
+	return 0;
 }
 
 void __init nlm_smp_setup(void)
@@ -272,7 +274,7 @@ int nlm_wakeup_secondary_cpus(void)
 	return 0;
 }
 
-struct plat_smp_ops nlm_smp_ops = {
+const struct plat_smp_ops nlm_smp_ops = {
 	.send_ipi_single	= nlm_send_ipi_single,
 	.send_ipi_mask		= nlm_send_ipi_mask,
 	.init_secondary		= nlm_init_secondary,
diff --git a/arch/mips/netlogic/xlp/Makefile b/arch/mips/netlogic/xlp/Makefile
index 6b43af0a34d9..d62465717393 100644
--- a/arch/mips/netlogic/xlp/Makefile
+++ b/arch/mips/netlogic/xlp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				+= setup.o nlm_hal.o cop2-ex.o dt.o
 obj-$(CONFIG_SMP)		+= wakeup.o
 ifdef CONFIG_USB
diff --git a/arch/mips/oprofile/Makefile b/arch/mips/oprofile/Makefile
index 070afdb297df..011cf9f891e7 100644
--- a/arch/mips/oprofile/Makefile
+++ b/arch/mips/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/mips/oprofile/backtrace.c b/arch/mips/oprofile/backtrace.c
index 16ace558cd9d..806fb798091f 100644
--- a/arch/mips/oprofile/backtrace.c
+++ b/arch/mips/oprofile/backtrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/oprofile.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c
index c57da6f13929..c3e4c18ef8d4 100644
--- a/arch/mips/oprofile/op_model_mipsxx.c
+++ b/arch/mips/oprofile/op_model_mipsxx.c
@@ -38,9 +38,9 @@ static int perfcount_irq;
 #ifdef CONFIG_MIPS_MT_SMP
 static int cpu_has_mipsmt_pertccounters;
 #define WHAT		(MIPS_PERFCTRL_MT_EN_VPE | \
-			 M_PERFCTL_VPEID(cpu_data[smp_processor_id()].vpe_id))
+			 M_PERFCTL_VPEID(cpu_vpe_id(&current_cpu_data)))
 #define vpe_id()	(cpu_has_mipsmt_pertccounters ? \
-			0 : cpu_data[smp_processor_id()].vpe_id)
+			0 : cpu_vpe_id(&current_cpu_data))
 
 /*
  * The number of bits to shift to convert between counters per core and
diff --git a/arch/mips/paravirt/Kconfig b/arch/mips/paravirt/Kconfig
index ecae5861b601..46b110fec967 100644
--- a/arch/mips/paravirt/Kconfig
+++ b/arch/mips/paravirt/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MIPS_PARAVIRT
 
 config MIPS_PCI_VIRTIO
diff --git a/arch/mips/paravirt/paravirt-smp.c b/arch/mips/paravirt/paravirt-smp.c
index 72eb1a56c645..107d9f90d668 100644
--- a/arch/mips/paravirt/paravirt-smp.c
+++ b/arch/mips/paravirt/paravirt-smp.c
@@ -100,11 +100,12 @@ static void paravirt_smp_finish(void)
 	local_irq_enable();
 }
 
-static void paravirt_boot_secondary(int cpu, struct task_struct *idle)
+static int paravirt_boot_secondary(int cpu, struct task_struct *idle)
 {
 	paravirt_smp_gp[cpu] = (unsigned long)task_thread_info(idle);
 	smp_wmb();
 	paravirt_smp_sp[cpu] = __KSTK_TOS(idle);
+	return 0;
 }
 
 static irqreturn_t paravirt_reched_interrupt(int irq, void *dev_id)
@@ -133,7 +134,7 @@ static void paravirt_prepare_cpus(unsigned int max_cpus)
 	}
 }
 
-struct plat_smp_ops paravirt_smp_ops = {
+const struct plat_smp_ops paravirt_smp_ops = {
 	.send_ipi_single	= paravirt_send_ipi_single,
 	.send_ipi_mask		= paravirt_send_ipi_mask,
 	.init_secondary		= paravirt_init_secondary,
diff --git a/arch/mips/paravirt/setup.c b/arch/mips/paravirt/setup.c
index cb8448b373a7..d2ffec1409a7 100644
--- a/arch/mips/paravirt/setup.c
+++ b/arch/mips/paravirt/setup.c
@@ -14,7 +14,7 @@
 #include <asm/smp-ops.h>
 #include <asm/time.h>
 
-extern struct plat_smp_ops paravirt_smp_ops;
+extern const struct plat_smp_ops paravirt_smp_ops;
 
 const char *get_system_type(void)
 {
diff --git a/arch/mips/pci/Makefile b/arch/mips/pci/Makefile
index 4b821481dd44..8185a2bfaf09 100644
--- a/arch/mips/pci/Makefile
+++ b/arch/mips/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PCI specific kernel interface routines under Linux.
 #
diff --git a/arch/mips/pci/fixup-capcella.c b/arch/mips/pci/fixup-capcella.c
index 1c02f5737367..b4c263f16b15 100644
--- a/arch/mips/pci/fixup-capcella.c
+++ b/arch/mips/pci/fixup-capcella.c
@@ -32,13 +32,13 @@
 #define INTC	PC104PLUS_INTC_IRQ
 #define INTD	PC104PLUS_INTD_IRQ
 
-static char irq_tab_capcella[][5] __initdata = {
+static char irq_tab_capcella[][5] = {
  [11] = { -1, INT1, INT1, INT1, INT1 },
  [12] = { -1, INT2, INT2, INT2, INT2 },
  [14] = { -1, INTA, INTB, INTC, INTD }
 };
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_tab_capcella[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-cobalt.c b/arch/mips/pci/fixup-cobalt.c
index b3ab59318d91..44be65c3e6bb 100644
--- a/arch/mips/pci/fixup-cobalt.c
+++ b/arch/mips/pci/fixup-cobalt.c
@@ -147,7 +147,7 @@ static void qube_raq_via_board_id_fixup(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_0,
 	 qube_raq_via_board_id_fixup);
 
-static char irq_tab_qube1[] __initdata = {
+static char irq_tab_qube1[] = {
   [COBALT_PCICONF_CPU]	   = 0,
   [COBALT_PCICONF_ETH0]	   = QUBE1_ETH0_IRQ,
   [COBALT_PCICONF_RAQSCSI] = SCSI_IRQ,
@@ -156,7 +156,7 @@ static char irq_tab_qube1[] __initdata = {
   [COBALT_PCICONF_ETH1]	   = 0
 };
 
-static char irq_tab_cobalt[] __initdata = {
+static char irq_tab_cobalt[] = {
   [COBALT_PCICONF_CPU]	   = 0,
   [COBALT_PCICONF_ETH0]	   = ETH0_IRQ,
   [COBALT_PCICONF_RAQSCSI] = SCSI_IRQ,
@@ -165,7 +165,7 @@ static char irq_tab_cobalt[] __initdata = {
   [COBALT_PCICONF_ETH1]	   = ETH1_IRQ
 };
 
-static char irq_tab_raq2[] __initdata = {
+static char irq_tab_raq2[] = {
   [COBALT_PCICONF_CPU]	   = 0,
   [COBALT_PCICONF_ETH0]	   = ETH0_IRQ,
   [COBALT_PCICONF_RAQSCSI] = RAQ2_SCSI_IRQ,
@@ -174,7 +174,7 @@ static char irq_tab_raq2[] __initdata = {
   [COBALT_PCICONF_ETH1]	   = ETH1_IRQ
 };
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
 		return irq_tab_qube1[slot];
diff --git a/arch/mips/pci/fixup-emma2rh.c b/arch/mips/pci/fixup-emma2rh.c
index 19caf775c206..c31cb6af1cd0 100644
--- a/arch/mips/pci/fixup-emma2rh.c
+++ b/arch/mips/pci/fixup-emma2rh.c
@@ -43,7 +43,7 @@
  */
 
 #define MAX_SLOT_NUM 10
-static unsigned char irq_map[][5] __initdata = {
+static unsigned char irq_map[][5] = {
 	[3] = {0, MARKEINS_PCI_IRQ_INTB, MARKEINS_PCI_IRQ_INTC,
 	       MARKEINS_PCI_IRQ_INTD, 0,},
 	[4] = {0, MARKEINS_PCI_IRQ_INTA, 0, 0, 0,},
@@ -85,7 +85,7 @@ static void emma2rh_pci_host_fixup(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_EMMA2RH,
 			 emma2rh_pci_host_fixup);
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_map[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-fuloong2e.c b/arch/mips/pci/fixup-fuloong2e.c
index 50da773faede..b47c2771dc99 100644
--- a/arch/mips/pci/fixup-fuloong2e.c
+++ b/arch/mips/pci/fixup-fuloong2e.c
@@ -19,7 +19,7 @@
 /* South bridge slot number is set by the pci probe process */
 static u8 sb_slot = 5;
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = 0;
 
diff --git a/arch/mips/pci/fixup-ip32.c b/arch/mips/pci/fixup-ip32.c
index 133685e215ee..d091ffc53569 100644
--- a/arch/mips/pci/fixup-ip32.c
+++ b/arch/mips/pci/fixup-ip32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/pci.h>
@@ -21,7 +22,7 @@
 #define INTB   MACEPCI_SHARED0_IRQ
 #define INTC   MACEPCI_SHARED1_IRQ
 #define INTD   MACEPCI_SHARED2_IRQ
-static char irq_tab_mace[][5] __initdata = {
+static char irq_tab_mace[][5] = {
       /* Dummy	INT#A  INT#B  INT#C  INT#D */
 	{0,	    0,	   0,	  0,	 0}, /* This is placeholder row - never used */
 	{0,	SCSI0, SCSI0, SCSI0, SCSI0},
@@ -39,7 +40,7 @@ static char irq_tab_mace[][5] __initdata = {
  * irqs.  I suppose a device without a pin A will thank us for doing it
  * right if there exists such a broken piece of crap.
  */
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return irq_tab_mace[slot][pin];
 }
diff --git a/arch/mips/pci/fixup-jmr3927.c b/arch/mips/pci/fixup-jmr3927.c
index 0f1069527cba..d3102eeea898 100644
--- a/arch/mips/pci/fixup-jmr3927.c
+++ b/arch/mips/pci/fixup-jmr3927.c
@@ -31,7 +31,7 @@
 #include <asm/txx9/pci.h>
 #include <asm/txx9/jmr3927.h>
 
-int __init jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int jmr3927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char irq = pin;
 
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index 2b5427d3f35c..81530a13b349 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -23,7 +23,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 	return 0;
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return of_irq_parse_and_map_pci(dev, slot, pin);
 }
diff --git a/arch/mips/pci/fixup-lemote2f.c b/arch/mips/pci/fixup-lemote2f.c
index 95ab9a1bd010..20cdfdc08938 100644
--- a/arch/mips/pci/fixup-lemote2f.c
+++ b/arch/mips/pci/fixup-lemote2f.c
@@ -30,7 +30,7 @@
 #define PCID		7
 
 /* all the pci device has the PCIA pin, check the datasheet. */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
 	/*	INTA	INTB	INTC	INTD */
 	{0, 0, 0, 0, 0},	/*  11: Unused */
 	{0, 0, 0, 0, 0},	/*  12: Unused */
@@ -51,7 +51,7 @@ static char irq_tab[][5] __initdata = {
 	{0, 0, 0, 0, 0},	/*  27: Unused */
 };
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int virq;
 
diff --git a/arch/mips/pci/fixup-loongson3.c b/arch/mips/pci/fixup-loongson3.c
index 2b6d5e196f99..8a741c2c6685 100644
--- a/arch/mips/pci/fixup-loongson3.c
+++ b/arch/mips/pci/fixup-loongson3.c
@@ -32,7 +32,7 @@ static void print_fixup_info(const struct pci_dev *pdev)
 			pdev->vendor, pdev->device, pdev->irq);
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	print_fixup_info(dev);
 	return dev->irq;
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index 40e920c653cc..8131e0ffe735 100644
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <asm/mips-boards/piix4.h>
@@ -12,7 +13,7 @@
 static char pci_irq[5] = {
 };
 
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
 	/*	INTA	INTB	INTC	INTD */
 	{0,	0,	0,	0,	0 },	/*  0: GT64120 PCI bridge */
 	{0,	0,	0,	0,	0 },	/*  1: Unused */
@@ -38,7 +39,7 @@ static char irq_tab[][5] __initdata = {
 	{0,	PCID,	PCIA,	PCIB,	PCIC }	/* 21: PCI Slot 4 */
 };
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int virq;
 	virq = irq_tab[slot][pin];
diff --git a/arch/mips/pci/fixup-mpc30x.c b/arch/mips/pci/fixup-mpc30x.c
index 8e4f8288eca2..66eaf456bc89 100644
--- a/arch/mips/pci/fixup-mpc30x.c
+++ b/arch/mips/pci/fixup-mpc30x.c
@@ -22,19 +22,19 @@
 
 #include <asm/vr41xx/mpc30x.h>
 
-static const int internal_func_irqs[] __initconst = {
+static const int internal_func_irqs[] = {
 	VRC4173_CASCADE_IRQ,
 	VRC4173_AC97_IRQ,
 	VRC4173_USB_IRQ,
 };
 
-static const int irq_tab_mpc30x[] __initconst = {
+static const int irq_tab_mpc30x[] = {
  [12] = VRC4173_PCMCIA1_IRQ,
  [13] = VRC4173_PCMCIA2_IRQ,
  [29] = MQ200_IRQ,
 };
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (slot == 30)
 		return internal_func_irqs[PCI_FUNC(dev->devfn)];
diff --git a/arch/mips/pci/fixup-pmcmsp.c b/arch/mips/pci/fixup-pmcmsp.c
index fab405c21c2f..4ad2ef02087b 100644
--- a/arch/mips/pci/fixup-pmcmsp.c
+++ b/arch/mips/pci/fixup-pmcmsp.c
@@ -47,7 +47,7 @@
 
 #if defined(CONFIG_PMC_MSP7120_GW)
 /* Garibaldi Board IRQ wiring to PCI slots */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
 	/* INTA	   INTB	   INTC	   INTD */
 	{0,	0,	0,	0,	0 },	/*    (AD[0]): Unused */
 	{0,	0,	0,	0,	0 },	/*    (AD[1]): Unused */
@@ -86,7 +86,7 @@ static char irq_tab[][5] __initdata = {
 #elif defined(CONFIG_PMC_MSP7120_EVAL)
 
 /* MSP7120 Eval Board IRQ wiring to PCI slots */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
 	/* INTA	   INTB	   INTC	   INTD */
 	{0,	0,	0,	0,	0 },	/*    (AD[0]): Unused */
 	{0,	0,	0,	0,	0 },	/*    (AD[1]): Unused */
@@ -125,7 +125,7 @@ static char irq_tab[][5] __initdata = {
 #else
 
 /* Unknown board -- don't assign any IRQs */
-static char irq_tab[][5] __initdata = {
+static char irq_tab[][5] = {
 	/* INTA	   INTB	   INTC	   INTD */
 	{0,	0,	0,	0,	0 },	/*    (AD[0]): Unused */
 	{0,	0,	0,	0,	0 },	/*    (AD[1]): Unused */
@@ -202,7 +202,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
  *  RETURNS:	 IRQ number
  *
  ****************************************************************************/
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 #if !defined(CONFIG_PMC_MSP7120_GW) && !defined(CONFIG_PMC_MSP7120_EVAL)
 	printk(KERN_WARNING "PCI: unknown board, no PCI IRQs assigned.\n");
diff --git a/arch/mips/pci/fixup-rbtx4927.c b/arch/mips/pci/fixup-rbtx4927.c
index 321db265829c..d6aaed1d6be9 100644
--- a/arch/mips/pci/fixup-rbtx4927.c
+++ b/arch/mips/pci/fixup-rbtx4927.c
@@ -36,7 +36,7 @@
 #include <asm/txx9/pci.h>
 #include <asm/txx9/rbtx4927.h>
 
-int __init rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int rbtx4927_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char irq = pin;
 
diff --git a/arch/mips/pci/fixup-rbtx4938.c b/arch/mips/pci/fixup-rbtx4938.c
index a80579af609b..ff22a22db73e 100644
--- a/arch/mips/pci/fixup-rbtx4938.c
+++ b/arch/mips/pci/fixup-rbtx4938.c
@@ -13,7 +13,7 @@
 #include <asm/txx9/pci.h>
 #include <asm/txx9/rbtx4938.h>
 
-int __init rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int rbtx4938_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = tx4938_pcic1_map_irq(dev, slot);
 
diff --git a/arch/mips/pci/fixup-sni.c b/arch/mips/pci/fixup-sni.c
index f67ebeeb4200..adb9a58641e8 100644
--- a/arch/mips/pci/fixup-sni.c
+++ b/arch/mips/pci/fixup-sni.c
@@ -40,7 +40,7 @@
  * seem to be a documentation error.  At least on my RM200C the Cirrus
  * Logic CL-GD5434 VGA is device 3.
  */
-static char irq_tab_rm200[8][5] __initdata = {
+static char irq_tab_rm200[8][5] = {
 	/*	 INTA  INTB  INTC  INTD */
 	{     0,    0,	  0,	0,    0 },	/* EISA bridge */
 	{  SCSI, SCSI, SCSI, SCSI, SCSI },	/* SCSI */
@@ -57,7 +57,7 @@ static char irq_tab_rm200[8][5] __initdata = {
  *
  * The VGA card is optional for RM300 systems.
  */
-static char irq_tab_rm300d[8][5] __initdata = {
+static char irq_tab_rm300d[8][5] = {
 	/*	 INTA  INTB  INTC  INTD */
 	{     0,    0,	  0,	0,    0 },	/* EISA bridge */
 	{  SCSI, SCSI, SCSI, SCSI, SCSI },	/* SCSI */
@@ -69,7 +69,7 @@ static char irq_tab_rm300d[8][5] __initdata = {
 	{     0, INTD, INTA, INTB, INTC },	/* Slot 4 */
 };
 
-static char irq_tab_rm300e[5][5] __initdata = {
+static char irq_tab_rm300e[5][5] = {
 	/*	 INTA  INTB  INTC  INTD */
 	{     0,    0,	  0,	0,    0 },	/* HOST bridge */
 	{  SCSI, SCSI, SCSI, SCSI, SCSI },	/* SCSI */
@@ -96,7 +96,7 @@ static char irq_tab_rm300e[5][5] __initdata = {
 #define INTC	PCIT_IRQ_INTC
 #define INTD	PCIT_IRQ_INTD
 
-static char irq_tab_pcit[13][5] __initdata = {
+static char irq_tab_pcit[13][5] = {
 	/*	 INTA  INTB  INTC  INTD */
 	{     0,     0,	    0,	   0,	  0 },	/* HOST bridge */
 	{ SCSI0, SCSI0, SCSI0, SCSI0, SCSI0 },	/* SCSI */
@@ -113,7 +113,7 @@ static char irq_tab_pcit[13][5] __initdata = {
 	{     0,  INTA,	 INTB,	INTC,  INTD },	/* Slot 5 */
 };
 
-static char irq_tab_pcit_cplus[13][5] __initdata = {
+static char irq_tab_pcit_cplus[13][5] = {
 	/*	 INTA  INTB  INTC  INTD */
 	{     0,     0,	    0,	   0,	  0 },	/* HOST bridge */
 	{     0,  INTB,	 INTC,	INTD,  INTA },	/* PCI Slot 9 */
@@ -130,7 +130,7 @@ static inline int is_rm300_revd(void)
 	return (csmsr & 0xa0) == 0x20;
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	switch (sni_brd_type) {
 	case SNI_BRD_PCI_TOWER_CPLUS:
diff --git a/arch/mips/pci/fixup-tb0219.c b/arch/mips/pci/fixup-tb0219.c
index d0b0083fbd27..cc581535f257 100644
--- a/arch/mips/pci/fixup-tb0219.c
+++ b/arch/mips/pci/fixup-tb0219.c
@@ -23,7 +23,7 @@
 
 #include <asm/vr41xx/tb0219.h>
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = -1;
 
diff --git a/arch/mips/pci/fixup-tb0226.c b/arch/mips/pci/fixup-tb0226.c
index 4196ccf3ea3d..b827b5cad5fd 100644
--- a/arch/mips/pci/fixup-tb0226.c
+++ b/arch/mips/pci/fixup-tb0226.c
@@ -23,7 +23,7 @@
 #include <asm/vr41xx/giu.h>
 #include <asm/vr41xx/tb0226.h>
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = -1;
 
diff --git a/arch/mips/pci/fixup-tb0287.c b/arch/mips/pci/fixup-tb0287.c
index 8c5039ed75d7..98f26285f2e3 100644
--- a/arch/mips/pci/fixup-tb0287.c
+++ b/arch/mips/pci/fixup-tb0287.c
@@ -22,7 +22,7 @@
 
 #include <asm/vr41xx/tb0287.h>
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	unsigned char bus;
 	int irq = -1;
diff --git a/arch/mips/pci/ops-loongson3.c b/arch/mips/pci/ops-loongson3.c
index 46ed541a3ec7..9e118431e226 100644
--- a/arch/mips/pci/ops-loongson3.c
+++ b/arch/mips/pci/ops-loongson3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/kernel.h>
diff --git a/arch/mips/pci/ops-nile4.c b/arch/mips/pci/ops-nile4.c
index b9d1fd0ff7e2..b00658d19116 100644
--- a/arch/mips/pci/ops-nile4.c
+++ b/arch/mips/pci/ops-nile4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <asm/bootinfo.h>
diff --git a/arch/mips/pci/pci-alchemy.c b/arch/mips/pci/pci-alchemy.c
index e99ca7702d8a..4f2411f489af 100644
--- a/arch/mips/pci/pci-alchemy.c
+++ b/arch/mips/pci/pci-alchemy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Alchemy PCI host mode support.
  *
@@ -522,7 +523,7 @@ static int __init alchemy_pci_init(void)
 arch_initcall(alchemy_pci_init);
 
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	struct alchemy_pci_context *ctx = dev->sysdata;
 	if (ctx && ctx->board_map_irq)
diff --git a/arch/mips/pci/pci-bcm47xx.c b/arch/mips/pci/pci-bcm47xx.c
index 76f16eaed0ad..230d7dd273e2 100644
--- a/arch/mips/pci/pci-bcm47xx.c
+++ b/arch/mips/pci/pci-bcm47xx.c
@@ -28,7 +28,7 @@
 #include <linux/bcma/bcma.h>
 #include <bcm47xx.h>
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return 0;
 }
diff --git a/arch/mips/pci/pci-bcm63xx.h b/arch/mips/pci/pci-bcm63xx.h
index ffab4da7bd00..214def1e45a5 100644
--- a/arch/mips/pci/pci-bcm63xx.h
+++ b/arch/mips/pci/pci-bcm63xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PCI_BCM63XX_H_
 #define PCI_BCM63XX_H_
 
diff --git a/arch/mips/pci/pci-generic.c b/arch/mips/pci/pci-generic.c
index dce304dc3d62..676348164027 100644
--- a/arch/mips/pci/pci-generic.c
+++ b/arch/mips/pci/pci-generic.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * pcibios_align_resource taken from arch/arm/kernel/bios32.c.
  *
diff --git a/arch/mips/pci/pci-lasat.c b/arch/mips/pci/pci-lasat.c
index 40d2797d2bc4..47f4ee6bbb3b 100644
--- a/arch/mips/pci/pci-lasat.c
+++ b/arch/mips/pci/pci-lasat.c
@@ -61,7 +61,7 @@ arch_initcall(lasat_pci_setup);
 #define LASAT_IRQ_PCIC	 (LASAT_IRQ_BASE + 7)
 #define LASAT_IRQ_PCID	 (LASAT_IRQ_BASE + 8)
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	switch (slot) {
 	case 1:
diff --git a/arch/mips/pci/pci-legacy.c b/arch/mips/pci/pci-legacy.c
index fc7726088103..0c65c38e05d6 100644
--- a/arch/mips/pci/pci-legacy.c
+++ b/arch/mips/pci/pci-legacy.c
@@ -139,7 +139,7 @@ void pci_load_of_ranges(struct pci_controller *hose, struct device_node *node)
 	struct of_pci_range range;
 	struct of_pci_range_parser parser;
 
-	pr_info("PCI host bridge %s ranges:\n", node->full_name);
+	pr_info("PCI host bridge %pOF ranges:\n", node);
 	hose->of_node = node;
 
 	if (of_pci_range_parser_init(&parser, node))
diff --git a/arch/mips/pci/pci-malta.c b/arch/mips/pci/pci-malta.c
index cfbbc3e3e914..88e625fb3a47 100644
--- a/arch/mips/pci/pci-malta.c
+++ b/arch/mips/pci/pci-malta.c
@@ -27,7 +27,7 @@
 #include <linux/init.h>
 
 #include <asm/gt64120.h>
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/bonito64.h>
 #include <asm/mips-boards/msc01_pci.h>
@@ -201,7 +201,7 @@ void __init mips_pcibios_init(void)
 		msc_mem_resource.start = start & mask;
 		msc_mem_resource.end = (start & mask) | ~mask;
 		msc_controller.mem_offset = (start & mask) - (map & mask);
-		if (mips_cm_numiocu()) {
+		if (mips_cps_numiocu(0)) {
 			write_gcr_reg0_base(start);
 			write_gcr_reg0_mask(mask |
 					    CM_GCR_REGn_MASK_CMTGT_IOCU0);
@@ -213,7 +213,7 @@ void __init mips_pcibios_init(void)
 		msc_io_resource.end = (map & mask) | ~mask;
 		msc_controller.io_offset = 0;
 		ioport_resource.end = ~mask;
-		if (mips_cm_numiocu()) {
+		if (mips_cps_numiocu(0)) {
 			write_gcr_reg1_base(start);
 			write_gcr_reg1_mask(mask |
 					    CM_GCR_REGn_MASK_CMTGT_IOCU0);
diff --git a/arch/mips/pci/pci-mt7620.c b/arch/mips/pci/pci-mt7620.c
index 628c5132b3d8..90fba9bf98da 100644
--- a/arch/mips/pci/pci-mt7620.c
+++ b/arch/mips/pci/pci-mt7620.c
@@ -291,7 +291,7 @@ static int mt7620_pci_probe(struct platform_device *pdev)
 							  IORESOURCE_MEM, 1);
 	u32 val = 0;
 
-	rstpcie0 = devm_reset_control_get(&pdev->dev, "pcie0");
+	rstpcie0 = devm_reset_control_get_exclusive(&pdev->dev, "pcie0");
 	if (IS_ERR(rstpcie0))
 		return PTR_ERR(rstpcie0);
 
@@ -361,7 +361,7 @@ static int mt7620_pci_probe(struct platform_device *pdev)
 	return 0;
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	u16 cmd;
 	u32 val;
diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
index 9ee01936862e..3e92a06fa772 100644
--- a/arch/mips/pci/pci-octeon.c
+++ b/arch/mips/pci/pci-octeon.c
@@ -59,8 +59,7 @@ union octeon_pci_address {
 	} s;
 };
 
-int __initconst (*octeon_pcibios_map_irq)(const struct pci_dev *dev,
-					 u8 slot, u8 pin);
+int (*octeon_pcibios_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
 enum octeon_dma_bar_type octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_INVALID;
 
 /**
@@ -74,7 +73,7 @@ enum octeon_dma_bar_type octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_INVALID;
  *		 as it goes through each bridge.
  * Returns Interrupt number for the device
  */
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	if (octeon_pcibios_map_irq)
 		return octeon_pcibios_map_irq(dev, slot, pin);
diff --git a/arch/mips/pci/pci-rt2880.c b/arch/mips/pci/pci-rt2880.c
index d6360fe73d05..711cdccdf65b 100644
--- a/arch/mips/pci/pci-rt2880.c
+++ b/arch/mips/pci/pci-rt2880.c
@@ -181,7 +181,7 @@ static inline void rt2880_pci_write_u32(unsigned long reg, u32 val)
 	spin_unlock_irqrestore(&rt2880_pci_lock, flags);
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	u16 cmd;
 	int irq = -1;
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 3520e9b414e7..958899ffe99c 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -207,8 +207,7 @@ static int rt3883_pci_irq_init(struct device *dev,
 
 	irq = irq_of_parse_and_map(rpc->intc_of_node, 0);
 	if (irq == 0) {
-		dev_err(dev, "%s has no IRQ",
-			of_node_full_name(rpc->intc_of_node));
+		dev_err(dev, "%pOF has no IRQ", rpc->intc_of_node);
 		return -EINVAL;
 	}
 
@@ -438,8 +437,8 @@ static int rt3883_pci_probe(struct platform_device *pdev)
 	}
 
 	if (!rpc->intc_of_node) {
-		dev_err(dev, "%s has no %s child node",
-			of_node_full_name(rpc->intc_of_node),
+		dev_err(dev, "%pOF has no %s child node",
+			rpc->intc_of_node,
 			"interrupt controller");
 		return -EINVAL;
 	}
@@ -454,8 +453,8 @@ static int rt3883_pci_probe(struct platform_device *pdev)
 	}
 
 	if (!rpc->pci_controller.of_node) {
-		dev_err(dev, "%s has no %s child node",
-			of_node_full_name(rpc->intc_of_node),
+		dev_err(dev, "%pOF has no %s child node",
+			rpc->intc_of_node,
 			"PCI host bridge");
 		err = -EINVAL;
 		goto err_put_intc_node;
@@ -565,7 +564,7 @@ err_put_intc_node:
 	return err;
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return of_irq_parse_and_map_pci(dev, slot, pin);
 }
diff --git a/arch/mips/pci/pci-tx4938.c b/arch/mips/pci/pci-tx4938.c
index 000c0e1f9ef8..a6418460e3c4 100644
--- a/arch/mips/pci/pci-tx4938.c
+++ b/arch/mips/pci/pci-tx4938.c
@@ -112,7 +112,7 @@ int __init tx4938_pciclk66_setup(void)
 	return pciclk;
 }
 
-int __init tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+int tx4938_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
 {
 	if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4938_pcic1ptr) {
 		switch (slot) {
diff --git a/arch/mips/pci/pci-tx4939.c b/arch/mips/pci/pci-tx4939.c
index 9d6acc00f348..09a65f7dbe7c 100644
--- a/arch/mips/pci/pci-tx4939.c
+++ b/arch/mips/pci/pci-tx4939.c
@@ -48,7 +48,7 @@ void __init tx4939_report_pci1clk(void)
 		((pciclk + 50000) / 100000) % 10);
 }
 
-int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
+int tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
 {
 	if (get_tx4927_pcicptr(dev->bus->sysdata) == tx4939_pcic1ptr) {
 		switch (slot) {
@@ -68,7 +68,7 @@ int __init tx4939_pcic1_map_irq(const struct pci_dev *dev, u8 slot)
 	return -1;
 }
 
-int __init tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int tx4939_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	int irq = tx4939_pcic1_map_irq(dev, slot);
 
diff --git a/arch/mips/pci/pci-xlp.c b/arch/mips/pci/pci-xlp.c
index 7babf01600cb..9eff9137f78e 100644
--- a/arch/mips/pci/pci-xlp.c
+++ b/arch/mips/pci/pci-xlp.c
@@ -205,7 +205,7 @@ int xlp_socdev_to_node(const struct pci_dev *lnkdev)
 		return PCI_SLOT(lnkdev->devfn) / 8;
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	struct pci_dev *lnkdev;
 	int lnkfunc, node;
diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c
index 26d2dabef281..2a1c81a129ba 100644
--- a/arch/mips/pci/pci-xlr.c
+++ b/arch/mips/pci/pci-xlr.c
@@ -315,7 +315,7 @@ static void xls_pcie_ack_b(struct irq_data *d)
 	}
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	return get_irq_vector(dev);
 }
diff --git a/arch/mips/pci/pcie-octeon.c b/arch/mips/pci/pcie-octeon.c
index ad3584dbc9d7..fd2887415bc8 100644
--- a/arch/mips/pci/pcie-octeon.c
+++ b/arch/mips/pci/pcie-octeon.c
@@ -1464,8 +1464,7 @@ static int cvmx_pcie_rc_initialize(int pcie_port)
  *		 as it goes through each bridge.
  * Returns Interrupt number for the device
  */
-int __init octeon_pcie_pcibios_map_irq(const struct pci_dev *dev,
-				       u8 slot, u8 pin)
+int octeon_pcie_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	/*
 	 * The EBH5600 board with the PCI to PCIe bridge mistakenly
diff --git a/arch/mips/pic32/Kconfig b/arch/mips/pic32/Kconfig
index 527d37da05ac..e284e89183cc 100644
--- a/arch/mips/pic32/Kconfig
+++ b/arch/mips/pic32/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if MACH_PIC32
 
 choice
diff --git a/arch/mips/pistachio/Kconfig b/arch/mips/pistachio/Kconfig
index 97731ea94322..9a0e06c95184 100644
--- a/arch/mips/pistachio/Kconfig
+++ b/arch/mips/pistachio/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PISTACHIO_GPTIMER_CLKSRC
 	bool "Enable General Purpose Timer based clocksource"
 	depends on MACH_PISTACHIO
diff --git a/arch/mips/pistachio/init.c b/arch/mips/pistachio/init.c
index 1c91cad7988f..0b06c953d293 100644
--- a/arch/mips/pistachio/init.c
+++ b/arch/mips/pistachio/init.c
@@ -19,8 +19,7 @@
 #include <asm/dma-coherence.h>
 #include <asm/fw/fw.h>
 #include <asm/mips-boards/generic.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/prom.h>
 #include <asm/smp-ops.h>
 #include <asm/traps.h>
diff --git a/arch/mips/pistachio/irq.c b/arch/mips/pistachio/irq.c
index 0a6b24c24652..709a8219073a 100644
--- a/arch/mips/pistachio/irq.c
+++ b/arch/mips/pistachio/irq.c
@@ -10,7 +10,6 @@
 
 #include <linux/init.h>
 #include <linux/irqchip.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/kernel.h>
 
 #include <asm/cpu-features.h>
diff --git a/arch/mips/pistachio/time.c b/arch/mips/pistachio/time.c
index 17a0f1dec05b..8a6af9b76202 100644
--- a/arch/mips/pistachio/time.c
+++ b/arch/mips/pistachio/time.c
@@ -12,9 +12,9 @@
 #include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/init.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/of.h>
 
+#include <asm/mips-cps.h>
 #include <asm/time.h>
 
 unsigned int get_c0_compare_int(void)
diff --git a/arch/mips/pmcs-msp71xx/Kconfig b/arch/mips/pmcs-msp71xx/Kconfig
index 4190093d3053..d319bc0c3df6 100644
--- a/arch/mips/pmcs-msp71xx/Kconfig
+++ b/arch/mips/pmcs-msp71xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "PMC-Sierra MSP SOC type"
 	depends on PMC_MSP
diff --git a/arch/mips/pmcs-msp71xx/Makefile b/arch/mips/pmcs-msp71xx/Makefile
index d4f7220f2485..c040bd6ed62d 100644
--- a/arch/mips/pmcs-msp71xx/Makefile
+++ b/arch/mips/pmcs-msp71xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PMC-Sierra MSP SOCs
 #
diff --git a/arch/mips/pmcs-msp71xx/msp_smp.c b/arch/mips/pmcs-msp71xx/msp_smp.c
index ffa0f7101a97..2b08242ade62 100644
--- a/arch/mips/pmcs-msp71xx/msp_smp.c
+++ b/arch/mips/pmcs-msp71xx/msp_smp.c
@@ -22,6 +22,8 @@
 #include <linux/smp.h>
 #include <linux/interrupt.h>
 
+#include <asm/setup.h>
+
 #ifdef CONFIG_MIPS_MT_SMP
 #define MIPS_CPU_IPI_RESCHED_IRQ 0	/* SW int 0 for resched */
 #define MIPS_CPU_IPI_CALL_IRQ 1		/* SW int 1 for call */
diff --git a/arch/mips/power/hibernate.c b/arch/mips/power/hibernate.c
index 19a9af68bcdb..94ab17c3c49d 100644
--- a/arch/mips/power/hibernate.c
+++ b/arch/mips/power/hibernate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/tlbflush.h>
 
 extern int restore_image(void);
diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig
index 710b04cf4851..f26736b7080b 100644
--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if RALINK
 
 config CLKEVT_RT3352
@@ -82,6 +83,16 @@ choice
 		depends on SOC_MT7620
 		select BUILTIN_DTB
 
+	config DTB_OMEGA2P
+		bool "Onion Omega2+"
+		depends on SOC_MT7620
+		select BUILTIN_DTB
+
+	config DTB_VOCORE2
+		bool "VoCore2"
+		depends on SOC_MT7620
+		select BUILTIN_DTB
+
 endchoice
 
 endif
diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c
index eb1c61917eb7..1b7df115eb60 100644
--- a/arch/mips/ralink/clk.c
+++ b/arch/mips/ralink/clk.c
@@ -53,6 +53,9 @@ EXPORT_SYMBOL_GPL(clk_disable);
 
 unsigned long clk_get_rate(struct clk *clk)
 {
+	if (!clk)
+		return 0;
+
 	return clk->rate;
 }
 EXPORT_SYMBOL_GPL(clk_get_rate);
diff --git a/arch/mips/ralink/irq-gic.c b/arch/mips/ralink/irq-gic.c
index 2058280450b5..bda576f2cad8 100644
--- a/arch/mips/ralink/irq-gic.c
+++ b/arch/mips/ralink/irq-gic.c
@@ -11,7 +11,7 @@
 
 #include <linux/of.h>
 #include <linux/irqchip.h>
-#include <linux/irqchip/mips-gic.h>
+#include <asm/mips-cps.h>
 
 int get_c0_perfcount_int(void)
 {
diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c
index 0695c2d64e49..1b274742077d 100644
--- a/arch/mips/ralink/mt7621.c
+++ b/arch/mips/ralink/mt7621.c
@@ -12,8 +12,7 @@
 
 #include <asm/mipsregs.h>
 #include <asm/smp-ops.h>
-#include <asm/mips-cm.h>
-#include <asm/mips-cpc.h>
+#include <asm/mips-cps.h>
 #include <asm/mach-ralink/ralink_regs.h>
 #include <asm/mach-ralink/mt7621.h>
 
@@ -199,7 +198,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 	mips_cm_probe();
 	mips_cpc_probe();
 
-	if (mips_cm_numiocu()) {
+	if (mips_cps_numiocu(0)) {
 		/*
 		 * mips_cm_probe() wipes out bootloader
 		 * config for CM regions and we have to configure them
diff --git a/arch/mips/rb532/setup.c b/arch/mips/rb532/setup.c
index d0c64e71d532..1aa4df1385cb 100644
--- a/arch/mips/rb532/setup.c
+++ b/arch/mips/rb532/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * setup.c - boot time setup code
  */
diff --git a/arch/mips/sgi-ip22/Makefile b/arch/mips/sgi-ip22/Makefile
index 411cda9ee030..45f42fa08faa 100644
--- a/arch/mips/sgi-ip22/Makefile
+++ b/arch/mips/sgi-ip22/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the SGI specific kernel interface routines
 # under Linux.
diff --git a/arch/mips/sgi-ip22/ip22-berr.c b/arch/mips/sgi-ip22/ip22-berr.c
index ff8e1935c873..34bb9801d5ff 100644
--- a/arch/mips/sgi-ip22/ip22-berr.c
+++ b/arch/mips/sgi-ip22/ip22-berr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip22-berr.c: Bus error handling.
  *
diff --git a/arch/mips/sgi-ip22/ip22-hpc.c b/arch/mips/sgi-ip22/ip22-hpc.c
index 396956e07307..49922e86cf1d 100644
--- a/arch/mips/sgi-ip22/ip22-hpc.c
+++ b/arch/mips/sgi-ip22/ip22-hpc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip22-hpc.c: Routines for generic manipulation of the HPC controllers.
  *
diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c
index c66889fc4913..3804895fa697 100644
--- a/arch/mips/sgi-ip22/ip22-int.c
+++ b/arch/mips/sgi-ip22/ip22-int.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip22-int.c: Routines for generic manipulation of the INT[23] ASIC
  *	       found on INDY and Indigo2 workstations.
diff --git a/arch/mips/sgi-ip22/ip22-mc.c b/arch/mips/sgi-ip22/ip22-mc.c
index db5a64026443..1944d41507ef 100644
--- a/arch/mips/sgi-ip22/ip22-mc.c
+++ b/arch/mips/sgi-ip22/ip22-mc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip22-mc.c: Routines for manipulating SGI Memory Controller.
  *
diff --git a/arch/mips/sgi-ip22/ip22-nvram.c b/arch/mips/sgi-ip22/ip22-nvram.c
index cc6133bb57ca..e727ef519acf 100644
--- a/arch/mips/sgi-ip22/ip22-nvram.c
+++ b/arch/mips/sgi-ip22/ip22-nvram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip22-nvram.c: NVRAM and serial EEPROM handling.
  *
diff --git a/arch/mips/sgi-ip22/ip22-platform.c b/arch/mips/sgi-ip22/ip22-platform.c
index a14fd32b76bd..37ad26716579 100644
--- a/arch/mips/sgi-ip22/ip22-platform.c
+++ b/arch/mips/sgi-ip22/ip22-platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/if_ether.h>
 #include <linux/kernel.h>
diff --git a/arch/mips/sgi-ip22/ip22-reset.c b/arch/mips/sgi-ip22/ip22-reset.c
index 03a39ac5ead9..c374f3ceec38 100644
--- a/arch/mips/sgi-ip22/ip22-reset.c
+++ b/arch/mips/sgi-ip22/ip22-reset.c
@@ -38,6 +38,7 @@
 #define PANIC_FREQ		(HZ / 8)
 
 static struct timer_list power_timer, blink_timer, debounce_timer;
+static unsigned long blink_timer_timeout;
 
 #define MACHINE_PANICED		1
 #define MACHINE_SHUTTING_DOWN	2
@@ -81,21 +82,21 @@ static void __noreturn sgi_machine_halt(void)
 	ArcEnterInteractiveMode();
 }
 
-static void power_timeout(unsigned long data)
+static void power_timeout(struct timer_list *unused)
 {
 	sgi_machine_power_off();
 }
 
-static void blink_timeout(unsigned long data)
+static void blink_timeout(struct timer_list *unused)
 {
 	/* XXX fix this for fullhouse  */
 	sgi_ioc_reset ^= (SGIOC_RESET_LC0OFF|SGIOC_RESET_LC1OFF);
 	sgioc->reset = sgi_ioc_reset;
 
-	mod_timer(&blink_timer, jiffies + data);
+	mod_timer(&blink_timer, jiffies + blink_timer_timeout);
 }
 
-static void debounce(unsigned long data)
+static void debounce(struct timer_list *unused)
 {
 	del_timer(&debounce_timer);
 	if (sgint->istat1 & SGINT_ISTAT1_PWR) {
@@ -128,11 +129,10 @@ static inline void power_button(void)
 	}
 
 	machine_state |= MACHINE_SHUTTING_DOWN;
-	blink_timer.data = POWERDOWN_FREQ;
-	blink_timeout(POWERDOWN_FREQ);
+	blink_timer_timeout = POWERDOWN_FREQ;
+	blink_timeout(&blink_timer);
 
-	init_timer(&power_timer);
-	power_timer.function = power_timeout;
+	timer_setup(&power_timer, power_timeout, 0);
 	power_timer.expires = jiffies + POWERDOWN_TIMEOUT * HZ;
 	add_timer(&power_timer);
 }
@@ -147,8 +147,7 @@ static irqreturn_t panel_int(int irq, void *dev_id)
 	if (sgint->istat1 & SGINT_ISTAT1_PWR) {
 		/* Wait until interrupt goes away */
 		disable_irq_nosync(SGI_PANEL_IRQ);
-		init_timer(&debounce_timer);
-		debounce_timer.function = debounce;
+		timer_setup(&debounce_timer, debounce, 0);
 		debounce_timer.expires = jiffies + 5;
 		add_timer(&debounce_timer);
 	}
@@ -171,8 +170,8 @@ static int panic_event(struct notifier_block *this, unsigned long event,
 		return NOTIFY_DONE;
 	machine_state |= MACHINE_PANICED;
 
-	blink_timer.data = PANIC_FREQ;
-	blink_timeout(PANIC_FREQ);
+	blink_timer_timeout = PANIC_FREQ;
+	blink_timeout(&blink_timer);
 
 	return NOTIFY_DONE;
 }
@@ -195,8 +194,7 @@ static int __init reboot_setup(void)
 		return res;
 	}
 
-	init_timer(&blink_timer);
-	blink_timer.function = blink_timeout;
+	timer_setup(&blink_timer, blink_timeout, 0);
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
 
 	return 0;
diff --git a/arch/mips/sgi-ip22/ip22-setup.c b/arch/mips/sgi-ip22/ip22-setup.c
index 872159970935..b69daa02401b 100644
--- a/arch/mips/sgi-ip22/ip22-setup.c
+++ b/arch/mips/sgi-ip22/ip22-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip22-setup.c: SGI specific setup, including init of the feature struct.
  *
diff --git a/arch/mips/sgi-ip22/ip28-berr.c b/arch/mips/sgi-ip22/ip28-berr.c
index 75460e1e106b..2ed8e4990b7a 100644
--- a/arch/mips/sgi-ip22/ip28-berr.c
+++ b/arch/mips/sgi-ip22/ip28-berr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip28-berr.c: Bus error handling.
  *
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig
index 4d8705a65e4a..ef3847e7aee0 100644
--- a/arch/mips/sgi-ip27/Kconfig
+++ b/arch/mips/sgi-ip27/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "Node addressing mode"
 	depends on SGI_IP27
diff --git a/arch/mips/sgi-ip27/Makefile b/arch/mips/sgi-ip27/Makefile
index ab4affa626c7..73502fda13ee 100644
--- a/arch/mips/sgi-ip27/Makefile
+++ b/arch/mips/sgi-ip27/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the IP27 specific kernel interface routines under Linux.
 #
diff --git a/arch/mips/sgi-ip27/ip27-irq-pci.c b/arch/mips/sgi-ip27/ip27-irq-pci.c
index 2a1c40784bd9..cd449e90b917 100644
--- a/arch/mips/sgi-ip27/ip27-irq-pci.c
+++ b/arch/mips/sgi-ip27/ip27-irq-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip27-irq.c: Highlevel interrupt handling for IP27 architecture.
  *
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index 16ec4e12daa3..0dde6164a06f 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ip27-irq.c: Highlevel interrupt handling for IP27 architecture.
  *
diff --git a/arch/mips/sgi-ip27/ip27-klconfig.c b/arch/mips/sgi-ip27/ip27-klconfig.c
index c873d62ff083..41171ff0c75e 100644
--- a/arch/mips/sgi-ip27/ip27-klconfig.c
+++ b/arch/mips/sgi-ip27/ip27-klconfig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 1999, 2000 Ralf Baechle (ralf@gnu.org)
  * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
diff --git a/arch/mips/sgi-ip27/ip27-klnuma.c b/arch/mips/sgi-ip27/ip27-klnuma.c
index 2beb03907d09..a4f01328de62 100644
--- a/arch/mips/sgi-ip27/ip27-klnuma.c
+++ b/arch/mips/sgi-ip27/ip27-klnuma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ported from IRIX to Linux by Kanoj Sarcar, 06/08/00.
  * Copyright 2000 - 2001 Silicon Graphics, Inc.
diff --git a/arch/mips/sgi-ip27/ip27-nmi.c b/arch/mips/sgi-ip27/ip27-nmi.c
index cfceaea92724..8ac2bfa35fb6 100644
--- a/arch/mips/sgi-ip27/ip27-nmi.c
+++ b/arch/mips/sgi-ip27/ip27-nmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/mmzone.h>
 #include <linux/nodemask.h>
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 4cd47d23d81a..545446dfe7fa 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -195,7 +195,7 @@ static void ip27_smp_finish(void)
  * set sp to the kernel stack of the newly created idle process, gp to the proc
  * struct so that current_thread_info() will work.
  */
-static void ip27_boot_secondary(int cpu, struct task_struct *idle)
+static int ip27_boot_secondary(int cpu, struct task_struct *idle)
 {
 	unsigned long gp = (unsigned long)task_thread_info(idle);
 	unsigned long sp = __KSTK_TOS(idle);
@@ -203,6 +203,7 @@ static void ip27_boot_secondary(int cpu, struct task_struct *idle)
 	LAUNCH_SLAVE(cputonasid(cpu), cputoslice(cpu),
 		(launch_proc_t)MAPPED_KERN_RW_TO_K0(smp_bootstrap),
 		0, (void *) sp, (void *) gp);
+	return 0;
 }
 
 static void __init ip27_smp_setup(void)
@@ -231,7 +232,7 @@ static void __init ip27_prepare_cpus(unsigned int max_cpus)
 	/* We already did everything necessary earlier */
 }
 
-struct plat_smp_ops ip27_smp_ops = {
+const struct plat_smp_ops ip27_smp_ops = {
 	.send_ipi_single	= ip27_send_ipi_single,
 	.send_ipi_mask		= ip27_send_ipi_mask,
 	.init_secondary		= ip27_init_secondary,
diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index a53f0c8c901e..9d55247533a5 100644
--- a/arch/mips/sgi-ip27/ip27-timer.c
+++ b/arch/mips/sgi-ip27/ip27-timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copytight (C) 1999, 2000, 05, 06 Ralf Baechle (ralf@linux-mips.org)
  * Copytight (C) 1999, 2000 Silicon Graphics, Inc.
diff --git a/arch/mips/sgi-ip32/ip32-reset.c b/arch/mips/sgi-ip32/ip32-reset.c
index b3b442def423..20d8637340be 100644
--- a/arch/mips/sgi-ip32/ip32-reset.c
+++ b/arch/mips/sgi-ip32/ip32-reset.c
@@ -38,6 +38,7 @@
 extern struct platform_device ip32_rtc_device;
 
 static struct timer_list power_timer, blink_timer;
+static unsigned long blink_timer_timeout;
 static int has_panicked, shutting_down;
 
 static __noreturn void ip32_poweroff(void *data)
@@ -71,11 +72,11 @@ static void ip32_machine_restart(char *cmd)
 	unreachable();
 }
 
-static void blink_timeout(unsigned long data)
+static void blink_timeout(struct timer_list *unused)
 {
 	unsigned long led = mace->perif.ctrl.misc ^ MACEISA_LED_RED;
 	mace->perif.ctrl.misc = led;
-	mod_timer(&blink_timer, jiffies + data);
+	mod_timer(&blink_timer, jiffies + blink_timer_timeout);
 }
 
 static void ip32_machine_halt(void)
@@ -83,7 +84,7 @@ static void ip32_machine_halt(void)
 	ip32_poweroff(&ip32_rtc_device);
 }
 
-static void power_timeout(unsigned long data)
+static void power_timeout(struct timer_list *unused)
 {
 	ip32_poweroff(&ip32_rtc_device);
 }
@@ -99,11 +100,10 @@ void ip32_prepare_poweroff(void)
 	}
 
 	shutting_down = 1;
-	blink_timer.data = POWERDOWN_FREQ;
-	blink_timeout(POWERDOWN_FREQ);
+	blink_timer_timeout = POWERDOWN_FREQ;
+	blink_timeout(&blink_timer);
 
-	init_timer(&power_timer);
-	power_timer.function = power_timeout;
+	timer_setup(&power_timer, power_timeout, 0);
 	power_timer.expires = jiffies + POWERDOWN_TIMEOUT * HZ;
 	add_timer(&power_timer);
 }
@@ -121,8 +121,8 @@ static int panic_event(struct notifier_block *this, unsigned long event,
 	led = mace->perif.ctrl.misc | MACEISA_LED_GREEN;
 	mace->perif.ctrl.misc = led;
 
-	blink_timer.data = PANIC_FREQ;
-	blink_timeout(PANIC_FREQ);
+	blink_timer_timeout = PANIC_FREQ;
+	blink_timeout(&blink_timer);
 
 	return NOTIFY_DONE;
 }
@@ -143,8 +143,7 @@ static __init int ip32_reboot_setup(void)
 	_machine_halt = ip32_machine_halt;
 	pm_power_off = ip32_machine_halt;
 
-	init_timer(&blink_timer);
-	blink_timer.function = blink_timeout;
+	timer_setup(&blink_timer, blink_timeout, 0);
 	atomic_notifier_chain_register(&panic_notifier_list, &panic_block);
 
 	return 0;
diff --git a/arch/mips/sibyte/Kconfig b/arch/mips/sibyte/Kconfig
index 707b88441567..f4dbce25bc6a 100644
--- a/arch/mips/sibyte/Kconfig
+++ b/arch/mips/sibyte/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config SIBYTE_SB1250
 	bool
 	select CEVT_SB1250
diff --git a/arch/mips/sibyte/Makefile b/arch/mips/sibyte/Makefile
index 455c40d6d625..d015c4d79c3e 100644
--- a/arch/mips/sibyte/Makefile
+++ b/arch/mips/sibyte/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Sibyte SB1250 / BCM1480 family of SOCs
 #
diff --git a/arch/mips/sibyte/bcm1480/smp.c b/arch/mips/sibyte/bcm1480/smp.c
index d0e94ffcc1b8..90c9d1255ad7 100644
--- a/arch/mips/sibyte/bcm1480/smp.c
+++ b/arch/mips/sibyte/bcm1480/smp.c
@@ -117,7 +117,7 @@ static void bcm1480_smp_finish(void)
  * Setup the PC, SP, and GP of a secondary processor and start it
  * running!
  */
-static void bcm1480_boot_secondary(int cpu, struct task_struct *idle)
+static int bcm1480_boot_secondary(int cpu, struct task_struct *idle)
 {
 	int retval;
 
@@ -126,6 +126,7 @@ static void bcm1480_boot_secondary(int cpu, struct task_struct *idle)
 			       (unsigned long)task_thread_info(idle), 0);
 	if (retval != 0)
 		printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
+	return retval;
 }
 
 /*
@@ -157,7 +158,7 @@ static void __init bcm1480_prepare_cpus(unsigned int max_cpus)
 {
 }
 
-struct plat_smp_ops bcm1480_smp_ops = {
+const struct plat_smp_ops bcm1480_smp_ops = {
 	.send_ipi_single	= bcm1480_send_ipi_single,
 	.send_ipi_mask		= bcm1480_send_ipi_mask,
 	.init_secondary		= bcm1480_init_secondary,
diff --git a/arch/mips/sibyte/common/cfe.c b/arch/mips/sibyte/common/cfe.c
index c1a11a11db7f..115399202eab 100644
--- a/arch/mips/sibyte/common/cfe.c
+++ b/arch/mips/sibyte/common/cfe.c
@@ -229,8 +229,8 @@ static int __init initrd_setup(char *str)
 
 #endif
 
-extern struct plat_smp_ops sb_smp_ops;
-extern struct plat_smp_ops bcm1480_smp_ops;
+extern const struct plat_smp_ops sb_smp_ops;
+extern const struct plat_smp_ops bcm1480_smp_ops;
 
 /*
  * prom_init is called just after the cpu type is determined, from setup_arch()
diff --git a/arch/mips/sibyte/common/cfe_console.c b/arch/mips/sibyte/common/cfe_console.c
index 1ad2da103fe9..8af7b41f7c19 100644
--- a/arch/mips/sibyte/common/cfe_console.c
+++ b/arch/mips/sibyte/common/cfe_console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/console.h>
diff --git a/arch/mips/sibyte/sb1250/smp.c b/arch/mips/sibyte/sb1250/smp.c
index 0a4a2c3982d8..5baabca52f25 100644
--- a/arch/mips/sibyte/sb1250/smp.c
+++ b/arch/mips/sibyte/sb1250/smp.c
@@ -106,7 +106,7 @@ static void sb1250_smp_finish(void)
  * Setup the PC, SP, and GP of a secondary processor and start it
  * running!
  */
-static void sb1250_boot_secondary(int cpu, struct task_struct *idle)
+static int sb1250_boot_secondary(int cpu, struct task_struct *idle)
 {
 	int retval;
 
@@ -115,6 +115,7 @@ static void sb1250_boot_secondary(int cpu, struct task_struct *idle)
 			       (unsigned long)task_thread_info(idle), 0);
 	if (retval != 0)
 		printk("cfe_start_cpu(%i) returned %i\n" , cpu, retval);
+	return retval;
 }
 
 /*
@@ -146,7 +147,7 @@ static void __init sb1250_prepare_cpus(unsigned int max_cpus)
 {
 }
 
-struct plat_smp_ops sb_smp_ops = {
+const struct plat_smp_ops sb_smp_ops = {
 	.send_ipi_single	= sb1250_send_ipi_single,
 	.send_ipi_mask		= sb1250_send_ipi_mask,
 	.init_secondary		= sb1250_init_secondary,
diff --git a/arch/mips/sibyte/swarm/platform.c b/arch/mips/sibyte/swarm/platform.c
index 1cecdcf85cf1..484969db7713 100644
--- a/arch/mips/sibyte/swarm/platform.c
+++ b/arch/mips/sibyte/swarm/platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/mips/sni/reset.c b/arch/mips/sni/reset.c
index 6afa34346b81..66f963d8da7e 100644
--- a/arch/mips/sni/reset.c
+++ b/arch/mips/sni/reset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/mips/sni/process.c
  *
diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c
index 7ee14f41fc25..0eb7d1e8821b 100644
--- a/arch/mips/sni/time.c
+++ b/arch/mips/sni/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/i8253.h>
 #include <linux/interrupt.h>
diff --git a/arch/mips/tools/generic-board-config.sh b/arch/mips/tools/generic-board-config.sh
new file mode 100755
index 000000000000..08849f83ef6c
--- /dev/null
+++ b/arch/mips/tools/generic-board-config.sh
@@ -0,0 +1,88 @@
+#!/bin/sh
+#
+# Copyright (C) 2017 Imagination Technologies
+# Author: Paul Burton <paul.burton@mips.com>
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation;  either version 2 of the  License, or (at your
+# option) any later version.
+#
+# This script merges configuration fragments for boards supported by the
+# generic MIPS kernel. It checks each for requirements specified using
+# formatted comments, and then calls merge_config.sh to merge those
+# fragments which have no unmet requirements.
+#
+# An example of requirements in your board config fragment might be:
+#
+# # require CONFIG_CPU_MIPS32_R2=y
+# # require CONFIG_CPU_LITTLE_ENDIAN=y
+#
+# This would mean that your board is only included in kernels which are
+# configured for little endian MIPS32r2 CPUs, and not for example in kernels
+# configured for 64 bit or big endian systems.
+#
+
+srctree="$1"
+objtree="$2"
+ref_cfg="$3"
+cfg="$4"
+boards_origin="$5"
+shift 5
+
+# Only print Skipping... lines if the user explicitly specified BOARDS=. In the
+# general case it only serves to obscure the useful output about what actually
+# was included.
+case ${boards_origin} in
+"command line")
+	print_skipped=1
+	;;
+environment*)
+	print_skipped=1
+	;;
+*)
+	print_skipped=0
+	;;
+esac
+
+for board in $@; do
+	board_cfg="${srctree}/arch/mips/configs/generic/board-${board}.config"
+	if [ ! -f "${board_cfg}" ]; then
+		echo "WARNING: Board config '${board_cfg}' not found"
+		continue
+	fi
+
+	# For each line beginning with # require, cut out the field following
+	# it & search for that in the reference config file. If the requirement
+	# is not found then the subshell will exit with code 1, and we'll
+	# continue on to the next board.
+	grep -E '^# require ' "${board_cfg}" | \
+	    cut -d' ' -f 3- | \
+	    while read req; do
+		case ${req} in
+		*=y)
+			# If we require something =y then we check that a line
+			# containing it is present in the reference config.
+			grep -Eq "^${req}\$" "${ref_cfg}" && continue
+			;;
+		*=n)
+			# If we require something =n then we just invert that
+			# check, considering the requirement met if there isn't
+			# a line containing the value =y in the reference
+			# config.
+			grep -Eq "^${req/%=n/=y}\$" "${ref_cfg}" || continue
+			;;
+		*)
+			echo "WARNING: Unhandled requirement '${req}'"
+			;;
+		esac
+
+		[ ${print_skipped} -eq 1 ] && echo "Skipping ${board_cfg}"
+		exit 1
+	done || continue
+
+	# Merge this board config fragment into our final config file
+	${srctree}/scripts/kconfig/merge_config.sh \
+		-m -O ${objtree} ${cfg} ${board_cfg} \
+		| grep -Ev '^(#|Using)'
+done
diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
index 42923478d45c..d2509c93f0ee 100644
--- a/arch/mips/txx9/Kconfig
+++ b/arch/mips/txx9/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MACH_TX39XX
 	bool
 	select MACH_TXX9
diff --git a/arch/mips/txx9/Makefile b/arch/mips/txx9/Makefile
index 34787dabff06..195295937282 100644
--- a/arch/mips/txx9/Makefile
+++ b/arch/mips/txx9/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Common TXx9
 #
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
index 1863c167e66e..6d00580fc81d 100644
--- a/arch/mips/txx9/generic/Makefile
+++ b/arch/mips/txx9/generic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for common code for TXx9 based systems
 #
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
index 0bd2a1e1ff9a..fb998726bd5d 100644
--- a/arch/mips/txx9/generic/pci.c
+++ b/arch/mips/txx9/generic/pci.c
@@ -386,9 +386,10 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 	return 0;
 }
 
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int (*txx9_pci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
+int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	return txx9_board_vec->pci_map_irq(dev, slot, pin);
+	return txx9_pci_map_irq(dev, slot, pin);
 }
 
 char * (*txx9_board_pcibios_setup)(char *str) __initdata;
@@ -424,5 +425,8 @@ char *__init txx9_pcibios_setup(char *str)
 			txx9_pci_err_action = TXX9_PCI_ERR_IGNORE;
 		return NULL;
 	}
+
+	txx9_pci_map_irq = txx9_board_vec->pci_map_irq;
+
 	return str;
 }
diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
index b47d2a45dbf4..ce196046ac3e 100644
--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Objects to go into the VDSO.
 obj-vdso-y := elf.o gettimeofday.o sigreturn.o
 
diff --git a/arch/mips/vdso/gettimeofday.c b/arch/mips/vdso/gettimeofday.c
index e2690d7ca4dd..e22b422f282c 100644
--- a/arch/mips/vdso/gettimeofday.c
+++ b/arch/mips/vdso/gettimeofday.c
@@ -11,12 +11,10 @@
 #include "vdso.h"
 
 #include <linux/compiler.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/time.h>
 
 #include <asm/clocksource.h>
 #include <asm/io.h>
-#include <asm/mips-cm.h>
 #include <asm/unistd.h>
 #include <asm/vdso.h>
 
@@ -126,9 +124,9 @@ static __always_inline u64 read_gic_count(const union mips_vdso_data *data)
 	u32 hi, hi2, lo;
 
 	do {
-		hi = __raw_readl(gic + GIC_UMV_SH_COUNTER_63_32_OFS);
-		lo = __raw_readl(gic + GIC_UMV_SH_COUNTER_31_00_OFS);
-		hi2 = __raw_readl(gic + GIC_UMV_SH_COUNTER_63_32_OFS);
+		hi = __raw_readl(gic + sizeof(lo));
+		lo = __raw_readl(gic);
+		hi2 = __raw_readl(gic + sizeof(lo));
 	} while (hi2 != hi);
 
 	return (((u64)hi) << 32) + lo;
diff --git a/arch/mips/vdso/sigreturn.S b/arch/mips/vdso/sigreturn.S
index 715bf5993529..30c6219912ac 100644
--- a/arch/mips/vdso/sigreturn.S
+++ b/arch/mips/vdso/sigreturn.S
@@ -19,31 +19,21 @@
 	.cfi_sections	.debug_frame
 
 LEAF(__vdso_rt_sigreturn)
-	.cfi_startproc
-	.frame	sp, 0, ra
-	.mask	0x00000000, 0
-	.fmask	0x00000000, 0
 	.cfi_signal_frame
 
 	li	v0, __NR_rt_sigreturn
 	syscall
 
-	.cfi_endproc
 	END(__vdso_rt_sigreturn)
 
 #if _MIPS_SIM == _MIPS_SIM_ABI32
 
 LEAF(__vdso_sigreturn)
-	.cfi_startproc
-	.frame	sp, 0, ra
-	.mask	0x00000000, 0
-	.fmask	0x00000000, 0
 	.cfi_signal_frame
 
 	li	v0, __NR_sigreturn
 	syscall
 
-	.cfi_endproc
 	END(__vdso_sigreturn)
 
 #endif
diff --git a/arch/mips/vr41xx/Kconfig b/arch/mips/vr41xx/Kconfig
index 74927b4d4f0b..992c988b83b0 100644
--- a/arch/mips/vr41xx/Kconfig
+++ b/arch/mips/vr41xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "Machine type"
 	depends on MACH_VR41XX
diff --git a/arch/mips/xilfpga/Kconfig b/arch/mips/xilfpga/Kconfig
index 42a030a0edba..ca7b2368eab7 100644
--- a/arch/mips/xilfpga/Kconfig
+++ b/arch/mips/xilfpga/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 choice
 	prompt "Machine type"
 	depends on MACH_XILFPGA
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 38e3494bfb63..e9d8d60bd28b 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MN10300
 	def_bool y
 	select HAVE_EXIT_THREAD
diff --git a/arch/mn10300/Kconfig.debug b/arch/mn10300/Kconfig.debug
index 94efb3ed223f..37ada651f756 100644
--- a/arch/mn10300/Kconfig.debug
+++ b/arch/mn10300/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/mn10300/boot/compressed/Makefile b/arch/mn10300/boot/compressed/Makefile
index 5f56f9de1061..9b9a48fc8e53 100644
--- a/arch/mn10300/boot/compressed/Makefile
+++ b/arch/mn10300/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Create a compressed vmlinux image from the original vmlinux
 #
diff --git a/arch/mn10300/boot/tools/build.c b/arch/mn10300/boot/tools/build.c
index 4f552ead0f8e..3ce158fe07b0 100644
--- a/arch/mn10300/boot/tools/build.c
+++ b/arch/mn10300/boot/tools/build.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 1997 Martin Mares
diff --git a/arch/mn10300/include/asm/kmap_types.h b/arch/mn10300/include/asm/kmap_types.h
index 76d093b58d4f..f444d7ffa766 100644
--- a/arch/mn10300/include/asm/kmap_types.h
+++ b/arch/mn10300/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
diff --git a/arch/mn10300/include/asm/mmu.h b/arch/mn10300/include/asm/mmu.h
index 2d2d097e7309..b9d6d41adace 100644
--- a/arch/mn10300/include/asm/mmu.h
+++ b/arch/mn10300/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* MN10300 Memory management context
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/mn10300/include/asm/page_offset.h b/arch/mn10300/include/asm/page_offset.h
index 8eb5b16ad86b..1e869aa09418 100644
--- a/arch/mn10300/include/asm/page_offset.h
+++ b/arch/mn10300/include/asm/page_offset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* MN10300 Kernel base address
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/mn10300/include/asm/shmparam.h b/arch/mn10300/include/asm/shmparam.h
index ab666ed1a070..3a31faaa4353 100644
--- a/arch/mn10300/include/asm/shmparam.h
+++ b/arch/mn10300/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SHMPARAM_H
 #define _ASM_SHMPARAM_H
 
diff --git a/arch/mn10300/include/asm/spinlock.h b/arch/mn10300/include/asm/spinlock.h
index fe413b41df6c..879cd0df53ba 100644
--- a/arch/mn10300/include/asm/spinlock.h
+++ b/arch/mn10300/include/asm/spinlock.h
@@ -84,6 +84,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock,
 		: "d" (flags), "a"(&lock->slock), "i"(EPSW_IE | MN10300_CLI_LEVEL)
 		: "memory", "cc");
 }
+#define arch_spin_lock_flags	arch_spin_lock_flags
 
 #ifdef __KERNEL__
 
@@ -98,18 +99,6 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lock,
  * read-locks.
  */
 
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(x) ((int)(x)->lock > 0)
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(x) ((x)->lock == RW_LOCK_BIAS)
-
 /*
  * On mn10300, we implement read-write locks as a 32-bit counter
  * with the high bit (sign) being the "contended" bit.
@@ -183,9 +172,6 @@ static inline int arch_write_trylock(arch_rwlock_t *lock)
 	return 0;
 }
 
-#define arch_read_lock_flags(lock, flags)  arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #define _raw_spin_relax(lock)	cpu_relax()
 #define _raw_read_relax(lock)	cpu_relax()
 #define _raw_write_relax(lock)	cpu_relax()
diff --git a/arch/mn10300/include/asm/spinlock_types.h b/arch/mn10300/include/asm/spinlock_types.h
index 653dc519b405..32abdc89bbc7 100644
--- a/arch/mn10300/include/asm/spinlock_types.h
+++ b/arch/mn10300/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPINLOCK_TYPES_H
 #define _ASM_SPINLOCK_TYPES_H
 
diff --git a/arch/mn10300/include/asm/termios.h b/arch/mn10300/include/asm/termios.h
index c2e29c75dfac..4010edcaa08e 100644
--- a/arch/mn10300/include/asm/termios.h
+++ b/arch/mn10300/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_TERMIOS_H
 #define _ASM_TERMIOS_H
 
diff --git a/arch/mn10300/include/uapi/asm/bitsperlong.h b/arch/mn10300/include/uapi/asm/bitsperlong.h
index 6dc0bb0c13b2..76da34b10f59 100644
--- a/arch/mn10300/include/uapi/asm/bitsperlong.h
+++ b/arch/mn10300/include/uapi/asm/bitsperlong.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/bitsperlong.h>
diff --git a/arch/mn10300/include/uapi/asm/byteorder.h b/arch/mn10300/include/uapi/asm/byteorder.h
index 5dd0bdd9feee..3467df91216c 100644
--- a/arch/mn10300/include/uapi/asm/byteorder.h
+++ b/arch/mn10300/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_BYTEORDER_H
 #define _ASM_BYTEORDER_H
 
diff --git a/arch/mn10300/include/uapi/asm/errno.h b/arch/mn10300/include/uapi/asm/errno.h
index 4c82b503d92f..9addba592646 100644
--- a/arch/mn10300/include/uapi/asm/errno.h
+++ b/arch/mn10300/include/uapi/asm/errno.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/errno.h>
diff --git a/arch/mn10300/include/uapi/asm/fcntl.h b/arch/mn10300/include/uapi/asm/fcntl.h
index 46ab12db5739..a77648c505d1 100644
--- a/arch/mn10300/include/uapi/asm/fcntl.h
+++ b/arch/mn10300/include/uapi/asm/fcntl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/fcntl.h>
diff --git a/arch/mn10300/include/uapi/asm/ioctl.h b/arch/mn10300/include/uapi/asm/ioctl.h
index b279fe06dfe5..b809c4566e5f 100644
--- a/arch/mn10300/include/uapi/asm/ioctl.h
+++ b/arch/mn10300/include/uapi/asm/ioctl.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ioctl.h>
diff --git a/arch/mn10300/include/uapi/asm/ioctls.h b/arch/mn10300/include/uapi/asm/ioctls.h
index 0212f4b22557..0955d4f854e9 100644
--- a/arch/mn10300/include/uapi/asm/ioctls.h
+++ b/arch/mn10300/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_IOCTLS_H
 #define _ASM_IOCTLS_H
 
diff --git a/arch/mn10300/include/uapi/asm/ipcbuf.h b/arch/mn10300/include/uapi/asm/ipcbuf.h
index 84c7e51cb6d0..90d6445a14df 100644
--- a/arch/mn10300/include/uapi/asm/ipcbuf.h
+++ b/arch/mn10300/include/uapi/asm/ipcbuf.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/ipcbuf.h>
diff --git a/arch/mn10300/include/uapi/asm/kvm_para.h b/arch/mn10300/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/mn10300/include/uapi/asm/kvm_para.h
+++ b/arch/mn10300/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/mn10300/include/uapi/asm/mman.h b/arch/mn10300/include/uapi/asm/mman.h
index db5c53da73ce..eb7f4798c036 100644
--- a/arch/mn10300/include/uapi/asm/mman.h
+++ b/arch/mn10300/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/mman.h>
 
 #define MIN_MAP_ADDR	PAGE_SIZE	/* minimum fixed mmap address */
diff --git a/arch/mn10300/include/uapi/asm/msgbuf.h b/arch/mn10300/include/uapi/asm/msgbuf.h
index 8b602450cc4a..5982def83355 100644
--- a/arch/mn10300/include/uapi/asm/msgbuf.h
+++ b/arch/mn10300/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_MSGBUF_H
 #define _ASM_MSGBUF_H
 
diff --git a/arch/mn10300/include/uapi/asm/param.h b/arch/mn10300/include/uapi/asm/param.h
index 02a0ca6f13ce..e0020d7742bd 100644
--- a/arch/mn10300/include/uapi/asm/param.h
+++ b/arch/mn10300/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 Kernel parameters
  *
  * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
diff --git a/arch/mn10300/include/uapi/asm/poll.h b/arch/mn10300/include/uapi/asm/poll.h
index c98509d3149e..b7132a305a47 100644
--- a/arch/mn10300/include/uapi/asm/poll.h
+++ b/arch/mn10300/include/uapi/asm/poll.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/poll.h>
diff --git a/arch/mn10300/include/uapi/asm/posix_types.h b/arch/mn10300/include/uapi/asm/posix_types.h
index d31eeea480cf..6b4cfc7136e9 100644
--- a/arch/mn10300/include/uapi/asm/posix_types.h
+++ b/arch/mn10300/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 POSIX types
  *
  * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
diff --git a/arch/mn10300/include/uapi/asm/ptrace.h b/arch/mn10300/include/uapi/asm/ptrace.h
index 71b2251b7bff..f485c481a266 100644
--- a/arch/mn10300/include/uapi/asm/ptrace.h
+++ b/arch/mn10300/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 Exception frame layout and ptrace constants
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/mn10300/include/uapi/asm/resource.h b/arch/mn10300/include/uapi/asm/resource.h
index 04bc4db8921b..49a81fbab43d 100644
--- a/arch/mn10300/include/uapi/asm/resource.h
+++ b/arch/mn10300/include/uapi/asm/resource.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/resource.h>
diff --git a/arch/mn10300/include/uapi/asm/sembuf.h b/arch/mn10300/include/uapi/asm/sembuf.h
index 301f3f9d8aa9..ef44c42c7e0f 100644
--- a/arch/mn10300/include/uapi/asm/sembuf.h
+++ b/arch/mn10300/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
diff --git a/arch/mn10300/include/uapi/asm/setup.h b/arch/mn10300/include/uapi/asm/setup.h
index ae5704fa77ad..043dd4b92026 100644
--- a/arch/mn10300/include/uapi/asm/setup.h
+++ b/arch/mn10300/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * There isn't anything here anymore, but the file must not be empty or patch
  * will delete it.
diff --git a/arch/mn10300/include/uapi/asm/shmbuf.h b/arch/mn10300/include/uapi/asm/shmbuf.h
index 8f300cc35d6c..6e81f74f51c6 100644
--- a/arch/mn10300/include/uapi/asm/shmbuf.h
+++ b/arch/mn10300/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SHMBUF_H
 #define _ASM_SHMBUF_H
 
diff --git a/arch/mn10300/include/uapi/asm/sigcontext.h b/arch/mn10300/include/uapi/asm/sigcontext.h
index 4de3afff4ad7..1c361fabb977 100644
--- a/arch/mn10300/include/uapi/asm/sigcontext.h
+++ b/arch/mn10300/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 Userspace signal context
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/mn10300/include/uapi/asm/signal.h b/arch/mn10300/include/uapi/asm/signal.h
index f423a08d7eeb..566cb199d5ac 100644
--- a/arch/mn10300/include/uapi/asm/signal.h
+++ b/arch/mn10300/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 Signal definitions
  *
  * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h
index ac82a3f26dbf..b35eee132142 100644
--- a/arch/mn10300/include/uapi/asm/socket.h
+++ b/arch/mn10300/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SOCKET_H
 #define _ASM_SOCKET_H
 
diff --git a/arch/mn10300/include/uapi/asm/sockios.h b/arch/mn10300/include/uapi/asm/sockios.h
index b03043a1c564..5706baa3cd0d 100644
--- a/arch/mn10300/include/uapi/asm/sockios.h
+++ b/arch/mn10300/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SOCKIOS_H
 #define _ASM_SOCKIOS_H
 
diff --git a/arch/mn10300/include/uapi/asm/stat.h b/arch/mn10300/include/uapi/asm/stat.h
index 63ff8371cf2c..769f5f8829d4 100644
--- a/arch/mn10300/include/uapi/asm/stat.h
+++ b/arch/mn10300/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_STAT_H
 #define _ASM_STAT_H
 
diff --git a/arch/mn10300/include/uapi/asm/swab.h b/arch/mn10300/include/uapi/asm/swab.h
index bd818a820ca8..d2284dd27ad4 100644
--- a/arch/mn10300/include/uapi/asm/swab.h
+++ b/arch/mn10300/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 Byte-order primitive construction
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/mn10300/include/uapi/asm/termbits.h b/arch/mn10300/include/uapi/asm/termbits.h
index 130d42495972..fca82ea2ca2c 100644
--- a/arch/mn10300/include/uapi/asm/termbits.h
+++ b/arch/mn10300/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_TERMBITS_H
 #define _ASM_TERMBITS_H
 
diff --git a/arch/mn10300/include/uapi/asm/termios.h b/arch/mn10300/include/uapi/asm/termios.h
index 11d3cc9d3162..25981aadb8cd 100644
--- a/arch/mn10300/include/uapi/asm/termios.h
+++ b/arch/mn10300/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_TERMIOS_H
 #define _UAPI_ASM_TERMIOS_H
 
diff --git a/arch/mn10300/include/uapi/asm/types.h b/arch/mn10300/include/uapi/asm/types.h
index 8b3f0501b9bc..7d2a697e2937 100644
--- a/arch/mn10300/include/uapi/asm/types.h
+++ b/arch/mn10300/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 Basic type definitions
  *
  * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
diff --git a/arch/mn10300/include/uapi/asm/unistd.h b/arch/mn10300/include/uapi/asm/unistd.h
index e28ac3f42479..c0c96b650692 100644
--- a/arch/mn10300/include/uapi/asm/unistd.h
+++ b/arch/mn10300/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* MN10300 System call number list
  *
  * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
diff --git a/arch/mn10300/kernel/Makefile b/arch/mn10300/kernel/Makefile
index 561029f7fa44..de32af0e4b6e 100644
--- a/arch/mn10300/kernel/Makefile
+++ b/arch/mn10300/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the MN10300-specific core kernel code
 #
diff --git a/arch/mn10300/kernel/asm-offsets.c b/arch/mn10300/kernel/asm-offsets.c
index e5a61c659b5a..57e6cc96267b 100644
--- a/arch/mn10300/kernel/asm-offsets.c
+++ b/arch/mn10300/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed
diff --git a/arch/mn10300/kernel/gdb-stub.c b/arch/mn10300/kernel/gdb-stub.c
index a128c57b586b..3399d5699804 100644
--- a/arch/mn10300/kernel/gdb-stub.c
+++ b/arch/mn10300/kernel/gdb-stub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* MN10300 GDB stub
  *
  * Originally written by Glenn Engel, Lake Stevens Instrument Division
diff --git a/arch/mn10300/kernel/mn10300-serial.c b/arch/mn10300/kernel/mn10300-serial.c
index 7ecf69879e2d..d7ef1232a82a 100644
--- a/arch/mn10300/kernel/mn10300-serial.c
+++ b/arch/mn10300/kernel/mn10300-serial.c
@@ -543,7 +543,7 @@ static void mn10300_serial_receive_interrupt(struct mn10300_serial_port *port)
 
 try_again:
 	/* pull chars out of the hat */
-	ix = ACCESS_ONCE(port->rx_outp);
+	ix = READ_ONCE(port->rx_outp);
 	if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0) {
 		if (push && !tport->low_latency)
 			tty_flip_buffer_push(tport);
@@ -1724,7 +1724,7 @@ static int mn10300_serial_poll_get_char(struct uart_port *_port)
 	if (mn10300_serial_int_tbl[port->rx_irq].port != NULL) {
 		do {
 			/* pull chars out of the hat */
-			ix = ACCESS_ONCE(port->rx_outp);
+			ix = READ_ONCE(port->rx_outp);
 			if (CIRC_CNT(port->rx_inp, ix, MNSC_BUFFER_SIZE) == 0)
 				return NO_POLL_CHAR;
 
diff --git a/arch/mn10300/kernel/process.c b/arch/mn10300/kernel/process.c
index 89e8027e07fb..7c475fd99c46 100644
--- a/arch/mn10300/kernel/process.c
+++ b/arch/mn10300/kernel/process.c
@@ -59,10 +59,6 @@ void arch_cpu_idle(void)
 }
 #endif
 
-void release_segments(struct mm_struct *mm)
-{
-}
-
 void machine_restart(char *cmd)
 {
 #ifdef CONFIG_KERNEL_DEBUGGER
@@ -113,14 +109,6 @@ void release_thread(struct task_struct *dead_task)
 }
 
 /*
- * we do not have to muck with descriptors here, that is
- * done in switch_mm() as needed.
- */
-void copy_segments(struct task_struct *p, struct mm_struct *new_mm)
-{
-}
-
-/*
  * this gets called so that we can store lazy state into memory and copy the
  * current task into the new thread.
  */
diff --git a/arch/mn10300/mm/Kconfig.cache b/arch/mn10300/mm/Kconfig.cache
index bfbe52691f2c..8cc5d9ec3b6c 100644
--- a/arch/mn10300/mm/Kconfig.cache
+++ b/arch/mn10300/mm/Kconfig.cache
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # MN10300 CPU cache options
 #
diff --git a/arch/mn10300/mm/Makefile b/arch/mn10300/mm/Makefile
index 11f38466ac28..048ba6f67f9a 100644
--- a/arch/mn10300/mm/Makefile
+++ b/arch/mn10300/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the MN10300-specific memory management code
 #
diff --git a/arch/mn10300/oprofile/Makefile b/arch/mn10300/oprofile/Makefile
index 918dbe60ebb6..9fa95aaf496b 100644
--- a/arch/mn10300/oprofile/Makefile
+++ b/arch/mn10300/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the MN10300-specific profiling code
 #
diff --git a/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h b/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h
index f537801a44ba..516afe824055 100644
--- a/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h
+++ b/arch/mn10300/proc-mn103e010/include/proc/intctl-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PROC_INTCTL_REGS_H
 #define _ASM_PROC_INTCTL_REGS_H
 
diff --git a/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h b/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h
index a1e977273d19..4d4084ea6694 100644
--- a/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h
+++ b/arch/mn10300/proc-mn2ws0050/include/proc/intctl-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PROC_INTCTL_REGS_H
 #define _ASM_PROC_INTCTL_REGS_H
 
diff --git a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h
index 33f100f9b468..2901ed344b3d 100644
--- a/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h
+++ b/arch/mn10300/unit-asb2364/include/unit/fpga-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ASB2364 FPGA registers
  */
 
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
index c587764b9c5a..60fae03dac79 100644
--- a/arch/nios2/Kconfig
+++ b/arch/nios2/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config NIOS2
 	def_bool y
 	select TIMER_OF
diff --git a/arch/nios2/Kconfig.debug b/arch/nios2/Kconfig.debug
index 55105220370c..edfeef049a51 100644
--- a/arch/nios2/Kconfig.debug
+++ b/arch/nios2/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/nios2/boot/compressed/Makefile b/arch/nios2/boot/compressed/Makefile
index d5921c9a9726..791e4309250a 100644
--- a/arch/nios2/boot/compressed/Makefile
+++ b/arch/nios2/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # create a compressed vmlinux image from the original vmlinux
 #
diff --git a/arch/nios2/boot/dts/3c120_devboard.dts b/arch/nios2/boot/dts/3c120_devboard.dts
index 31c51f9a2f09..36ccdf05837d 100644
--- a/arch/nios2/boot/dts/3c120_devboard.dts
+++ b/arch/nios2/boot/dts/3c120_devboard.dts
@@ -159,6 +159,7 @@
 	};
 
 	chosen {
-		bootargs = "debug console=ttyJ0,115200";
+		bootargs = "debug earlycon console=ttyJ0,115200";
+		stdout-path = &jtag_uart;
 	};
 };
diff --git a/arch/nios2/include/uapi/asm/byteorder.h b/arch/nios2/include/uapi/asm/byteorder.h
index 3ab5dc20d757..639007a5544e 100644
--- a/arch/nios2/include/uapi/asm/byteorder.h
+++ b/arch/nios2/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2009   Thomas Chou <thomas@wytron.com.tw>
  * Copyright (C) 2004   Microtronix Datacom Ltd
diff --git a/arch/nios2/include/uapi/asm/elf.h b/arch/nios2/include/uapi/asm/elf.h
index 6f06d3b2949e..ab0df71f81b2 100644
--- a/arch/nios2/include/uapi/asm/elf.h
+++ b/arch/nios2/include/uapi/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
  *
diff --git a/arch/nios2/include/uapi/asm/ptrace.h b/arch/nios2/include/uapi/asm/ptrace.h
index 1d35de90a977..2b91dbe5bcfe 100644
--- a/arch/nios2/include/uapi/asm/ptrace.h
+++ b/arch/nios2/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch>
  * Copyright (C) 2004 Microtronix Datacom Ltd
diff --git a/arch/nios2/include/uapi/asm/sigcontext.h b/arch/nios2/include/uapi/asm/sigcontext.h
index b67944a50927..204ae3475b4e 100644
--- a/arch/nios2/include/uapi/asm/sigcontext.h
+++ b/arch/nios2/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2004, Microtronix Datacom Ltd.
  *
diff --git a/arch/nios2/include/uapi/asm/signal.h b/arch/nios2/include/uapi/asm/signal.h
index f29ee6314481..b0d983068fa5 100644
--- a/arch/nios2/include/uapi/asm/signal.h
+++ b/arch/nios2/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright Altera Corporation (C) 2013. All rights reserved
  *
diff --git a/arch/nios2/include/uapi/asm/swab.h b/arch/nios2/include/uapi/asm/swab.h
index b4e22ebaeb17..9750547a5f82 100644
--- a/arch/nios2/include/uapi/asm/swab.h
+++ b/arch/nios2/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 Tobias Klauser <tklauser@distanz.ch>
  * Copyright (C) 2011 Pyramid Technical Consultants, Inc.
diff --git a/arch/nios2/include/uapi/asm/unistd.h b/arch/nios2/include/uapi/asm/unistd.h
index 51a32c71ce2b..b6bdae04bc84 100644
--- a/arch/nios2/include/uapi/asm/unistd.h
+++ b/arch/nios2/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2013 Altera Corporation
  *
diff --git a/arch/nios2/kernel/Makefile b/arch/nios2/kernel/Makefile
index 06d07432b38d..0b645e1e3158 100644
--- a/arch/nios2/kernel/Makefile
+++ b/arch/nios2/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the nios2 linux kernel.
 #
diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c
index 645129aaa9a0..20e86209ef2e 100644
--- a/arch/nios2/kernel/time.c
+++ b/arch/nios2/kernel/time.c
@@ -107,7 +107,10 @@ static struct nios2_clocksource nios2_cs = {
 
 cycles_t get_cycles(void)
 {
-	return nios2_timer_read(&nios2_cs.cs);
+	/* Only read timer if it has been initialized */
+	if (nios2_cs.timer.base)
+		return nios2_timer_read(&nios2_cs.cs);
+	return 0;
 }
 EXPORT_SYMBOL(get_cycles);
 
diff --git a/arch/nios2/mm/Makefile b/arch/nios2/mm/Makefile
index 3cbd0840873c..9d37fafd1dd1 100644
--- a/arch/nios2/mm/Makefile
+++ b/arch/nios2/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Nios2-specific parts of the memory manager.
 #
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index a0f2e4a323c1..339df7324e9c 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
@@ -21,13 +22,19 @@ config OPENRISC
 	select HAVE_UID16
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS
+	select GENERIC_CLOCKEVENTS_BROADCAST
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
+	select GENERIC_SMP_IDLE_THREAD
 	select MODULES_USE_ELF_RELA
 	select HAVE_DEBUG_STACKOVERFLOW
 	select OR1K_PIC
 	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1
 	select NO_BOOTMEM
+	select ARCH_USE_QUEUED_SPINLOCKS
+	select ARCH_USE_QUEUED_RWLOCKS
+	select OMPIC if SMP
+	select ARCH_WANT_FRAME_POINTERS
 
 config CPU_BIG_ENDIAN
 	def_bool y
@@ -55,6 +62,12 @@ config TRACE_IRQFLAGS_SUPPORT
 config GENERIC_CSUM
         def_bool y
 
+config STACKTRACE_SUPPORT
+	def_bool y
+
+config LOCKDEP_SUPPORT
+	def_bool  y
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
@@ -72,6 +85,17 @@ config OR1K_1200
 
 endchoice
 
+config DCACHE_WRITETHROUGH
+	bool "Have write through data caches"
+	default n
+	help
+	  Select this if your implementation features write through data caches.
+	  Selecting 'N' here will allow the kernel to force flushing of data
+	  caches at relevant times. Most OpenRISC implementations support write-
+	  through data caches.
+
+	  If unsure say N here
+
 config OPENRISC_BUILTIN_DTB
         string "Builtin DTB"
         default ""
@@ -104,8 +128,19 @@ config OPENRISC_HAVE_INST_DIV
 endmenu
 
 config NR_CPUS
-	int
-	default "1"
+	int "Maximum number of CPUs (2-32)"
+	range 2 32
+	depends on SMP
+	default "2"
+
+config SMP
+	bool "Symmetric Multi-Processing support"
+	help
+	  This enables support for systems with more than one CPU. If you have
+	  a system with only one CPU, say N. If you have a system with more
+	  than one CPU, say Y.
+
+	  If you don't know what to do here, say N.
 
 source kernel/Kconfig.hz
 source kernel/Kconfig.preempt
@@ -124,6 +159,17 @@ config OPENRISC_NO_SPR_SR_DSX
 	  Say N here if you know that your OpenRISC processor has
 	  SPR_SR_DSX bit implemented. Say Y if you are unsure.
 
+config OPENRISC_HAVE_SHADOW_GPRS
+	bool "Support for shadow gpr files" if !SMP
+	default y if SMP
+	help
+	  Say Y here if your OpenRISC processor features shadowed
+	  register files. They will in such case be used as a
+	  scratch reg storage on exception entry.
+
+	  On SMP systems, this feature is mandatory.
+	  On a unicore system it's safe to say N here if you are unsure.
+
 config CMDLINE
         string "Default kernel command string"
         default ""
diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index 89076a66eee2..cf8802962864 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -25,6 +25,7 @@ LDFLAGS_vmlinux :=
 LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
 KBUILD_CFLAGS	+= -pipe -ffixed-r10 -D__linux__
+CHECKFLAGS	+= -mbig-endian
 
 ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
 	KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
diff --git a/arch/openrisc/boot/dts/Makefile b/arch/openrisc/boot/dts/Makefile
index b092d30d6c23..792ce7143c3a 100644
--- a/arch/openrisc/boot/dts/Makefile
+++ b/arch/openrisc/boot/dts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifneq '$(CONFIG_OPENRISC_BUILTIN_DTB)' '""'
 BUILTIN_DTB := $(patsubst "%",%,$(CONFIG_OPENRISC_BUILTIN_DTB)).dtb.o
 else
diff --git a/arch/openrisc/boot/dts/or1ksim.dts b/arch/openrisc/boot/dts/or1ksim.dts
index 5d4f9027afaf..d8aa8309c9d3 100644
--- a/arch/openrisc/boot/dts/or1ksim.dts
+++ b/arch/openrisc/boot/dts/or1ksim.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 / {
 	compatible = "opencores,or1ksim";
@@ -5,8 +6,13 @@
 	#size-cells = <1>;
 	interrupt-parent = <&pic>;
 
+	aliases {
+		uart0 = &serial0;
+	};
+
 	chosen {
-		bootargs = "console=uart,mmio,0x90000000,115200";
+		bootargs = "earlycon";
+		stdout-path = "uart0:115200";
 	};
 
 	memory@0 {
diff --git a/arch/openrisc/boot/dts/simple_smp.dts b/arch/openrisc/boot/dts/simple_smp.dts
new file mode 100644
index 000000000000..defbb92714ec
--- /dev/null
+++ b/arch/openrisc/boot/dts/simple_smp.dts
@@ -0,0 +1,63 @@
+/dts-v1/;
+/ {
+	compatible = "opencores,or1ksim";
+	#address-cells = <1>;
+	#size-cells = <1>;
+	interrupt-parent = <&pic>;
+
+	aliases {
+		uart0 = &serial0;
+	};
+
+	chosen {
+		bootargs = "earlycon";
+		stdout-path = "uart0:115200";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x02000000>;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		cpu@0 {
+			compatible = "opencores,or1200-rtlsvn481";
+			reg = <0>;
+			clock-frequency = <20000000>;
+		};
+		cpu@1 {
+			compatible = "opencores,or1200-rtlsvn481";
+			reg = <1>;
+			clock-frequency = <20000000>;
+		};
+	};
+
+	ompic: ompic@98000000 {
+		compatible = "openrisc,ompic";
+		reg = <0x98000000 16>;
+		interrupt-controller;
+		#interrupt-cells = <0>;
+		interrupts = <1>;
+	};
+
+	/*
+	 * OR1K PIC is built into CPU and accessed via special purpose
+	 * registers.  It is not addressable and, hence, has no 'reg'
+	 * property.
+	 */
+	pic: pic {
+		compatible = "opencores,or1k-pic-level";
+		#interrupt-cells = <1>;
+		interrupt-controller;
+	};
+
+	serial0: serial@90000000 {
+		compatible = "opencores,uart16550-rtlsvn105", "ns16550a";
+		reg = <0x90000000 0x100>;
+		interrupts = <2>;
+		clock-frequency = <20000000>;
+	};
+
+};
diff --git a/arch/openrisc/configs/simple_smp_defconfig b/arch/openrisc/configs/simple_smp_defconfig
new file mode 100644
index 000000000000..b6e3c7e158e7
--- /dev/null
+++ b/arch/openrisc/configs/simple_smp_defconfig
@@ -0,0 +1,66 @@
+CONFIG_CROSS_COMPILE="or1k-linux-"
+CONFIG_LOCALVERSION="-simple-smp"
+CONFIG_NO_HZ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_RD_GZIP is not set
+# CONFIG_RD_BZIP2 is not set
+# CONFIG_RD_LZMA is not set
+# CONFIG_RD_XZ is not set
+# CONFIG_RD_LZO is not set
+# CONFIG_RD_LZ4 is not set
+CONFIG_EXPERT=y
+# CONFIG_KALLSYMS is not set
+# CONFIG_EPOLL is not set
+# CONFIG_TIMERFD is not set
+# CONFIG_EVENTFD is not set
+# CONFIG_AIO is not set
+# CONFIG_VM_EVENT_COUNTERS is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_SLOB=y
+CONFIG_MODULES=y
+# CONFIG_BLOCK is not set
+CONFIG_OPENRISC_BUILTIN_DTB="simple_smp"
+CONFIG_SMP=y
+CONFIG_HZ_100=y
+CONFIG_OPENRISC_HAVE_SHADOW_GPRS=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_DIAG is not set
+CONFIG_TCP_CONG_ADVANCED=y
+# CONFIG_TCP_CONG_BIC is not set
+# CONFIG_TCP_CONG_CUBIC is not set
+# CONFIG_TCP_CONG_WESTWOOD is not set
+# CONFIG_TCP_CONG_HTCP is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FW_LOADER is not set
+CONFIG_NETDEVICES=y
+CONFIG_ETHOC=y
+CONFIG_MICREL_PHY=y
+# CONFIG_WLAN is not set
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_OF_PLATFORM=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_DNOTIFY is not set
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_XZ_DEC=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_RCU_TRACE is not set
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 5bea416a7792..6eb16719549e 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -1,7 +1,6 @@
 generic-y += barrier.h
 generic-y += bug.h
 generic-y += bugs.h
-generic-y += cacheflush.h
 generic-y += checksum.h
 generic-y += clkdev.h
 generic-y += current.h
@@ -28,6 +27,10 @@ generic-y += module.h
 generic-y += pci.h
 generic-y += percpu.h
 generic-y += preempt.h
+generic-y += qspinlock_types.h
+generic-y += qspinlock.h
+generic-y += qrwlock_types.h
+generic-y += qrwlock.h
 generic-y += sections.h
 generic-y += segment.h
 generic-y += string.h
diff --git a/arch/openrisc/include/asm/cacheflush.h b/arch/openrisc/include/asm/cacheflush.h
new file mode 100644
index 000000000000..70f46fd7a074
--- /dev/null
+++ b/arch/openrisc/include/asm/cacheflush.h
@@ -0,0 +1,96 @@
+/*
+ * OpenRISC Linux
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others.  All original copyrights apply as per the original source
+ * declaration.
+ *
+ * OpenRISC implementation:
+ * Copyright (C) Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de>
+ * et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __ASM_CACHEFLUSH_H
+#define __ASM_CACHEFLUSH_H
+
+#include <linux/mm.h>
+
+/*
+ * Helper function for flushing or invalidating entire pages from data
+ * and instruction caches. SMP needs a little extra work, since we need
+ * to flush the pages on all cpus.
+ */
+extern void local_dcache_page_flush(struct page *page);
+extern void local_icache_page_inv(struct page *page);
+
+/*
+ * Data cache flushing always happen on the local cpu. Instruction cache
+ * invalidations need to be broadcasted to all other cpu in the system in
+ * case of SMP configurations.
+ */
+#ifndef CONFIG_SMP
+#define dcache_page_flush(page)      local_dcache_page_flush(page)
+#define icache_page_inv(page)        local_icache_page_inv(page)
+#else  /* CONFIG_SMP */
+#define dcache_page_flush(page)      local_dcache_page_flush(page)
+#define icache_page_inv(page)        smp_icache_page_inv(page)
+extern void smp_icache_page_inv(struct page *page);
+#endif /* CONFIG_SMP */
+
+/*
+ * Synchronizes caches. Whenever a cpu writes executable code to memory, this
+ * should be called to make sure the processor sees the newly written code.
+ */
+static inline void sync_icache_dcache(struct page *page)
+{
+	if (!IS_ENABLED(CONFIG_DCACHE_WRITETHROUGH))
+		dcache_page_flush(page);
+	icache_page_inv(page);
+}
+
+/*
+ * Pages with this bit set need not be flushed/invalidated, since
+ * they have not changed since last flush. New pages start with
+ * PG_arch_1 not set and are therefore dirty by default.
+ */
+#define PG_dc_clean                  PG_arch_1
+
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
+static inline void flush_dcache_page(struct page *page)
+{
+	clear_bit(PG_dc_clean, &page->flags);
+}
+
+/*
+ * Other interfaces are not required since we do not have virtually
+ * indexed or tagged caches. So we can use the default here.
+ */
+#define flush_cache_all()				do { } while (0)
+#define flush_cache_mm(mm)				do { } while (0)
+#define flush_cache_dup_mm(mm)				do { } while (0)
+#define flush_cache_range(vma, start, end)		do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)		do { } while (0)
+#define flush_dcache_mmap_lock(mapping)			do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)		do { } while (0)
+#define flush_icache_range(start, end)			do { } while (0)
+#define flush_icache_page(vma, pg)			do { } while (0)
+#define flush_icache_user_range(vma, pg, adr, len)	do { } while (0)
+#define flush_cache_vmap(start, end)			do { } while (0)
+#define flush_cache_vunmap(start, end)			do { } while (0)
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)           \
+	do {                                                         \
+		memcpy(dst, src, len);                               \
+		if (vma->vm_flags & VM_EXEC)                         \
+			sync_icache_dcache(page);                    \
+	} while (0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len)         \
+	memcpy(dst, src, len)
+
+#endif /* __ASM_CACHEFLUSH_H */
diff --git a/arch/openrisc/include/asm/cmpxchg.h b/arch/openrisc/include/asm/cmpxchg.h
index f0a5d8b844d6..d29f7db53906 100644
--- a/arch/openrisc/include/asm/cmpxchg.h
+++ b/arch/openrisc/include/asm/cmpxchg.h
@@ -1,32 +1,29 @@
 /*
+ * 1,2 and 4 byte cmpxchg and xchg implementations for OpenRISC.
+ *
  * Copyright (C) 2014 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
+ * Copyright (C) 2017 Stafford Horne <shorne@gmail.com>
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2.  This program is licensed "as is" without any warranty of any
  * kind, whether express or implied.
+ *
+ * Note:
+ * The portable implementations of 1 and 2 byte xchg and cmpxchg using a 4
+ * byte cmpxchg is sourced heavily from the sh and mips implementations.
  */
 
 #ifndef __ASM_OPENRISC_CMPXCHG_H
 #define __ASM_OPENRISC_CMPXCHG_H
 
 #include  <linux/types.h>
-
-/*
- * This function doesn't exist, so you'll get a linker error
- * if something tries to do an invalid cmpxchg().
- */
-extern void __cmpxchg_called_with_bad_pointer(void);
+#include  <linux/bitops.h>
 
 #define __HAVE_ARCH_CMPXCHG 1
 
-static inline unsigned long
-__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
+static inline unsigned long cmpxchg_u32(volatile void *ptr,
+		unsigned long old, unsigned long new)
 {
-	if (size != 4) {
-		__cmpxchg_called_with_bad_pointer();
-		return old;
-	}
-
 	__asm__ __volatile__(
 		"1:	l.lwa %0, 0(%1)		\n"
 		"	l.sfeq %0, %2		\n"
@@ -43,6 +40,97 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
 	return old;
 }
 
+static inline unsigned long xchg_u32(volatile void *ptr,
+		unsigned long val)
+{
+	__asm__ __volatile__(
+		"1:	l.lwa %0, 0(%1)		\n"
+		"	l.swa 0(%1), %2		\n"
+		"	l.bnf 1b		\n"
+		"	 l.nop			\n"
+		: "=&r"(val)
+		: "r"(ptr), "r"(val)
+		: "cc", "memory");
+
+	return val;
+}
+
+static inline u32 cmpxchg_small(volatile void *ptr, u32 old, u32 new,
+				int size)
+{
+	int off = (unsigned long)ptr % sizeof(u32);
+	volatile u32 *p = ptr - off;
+#ifdef __BIG_ENDIAN
+	int bitoff = (sizeof(u32) - size - off) * BITS_PER_BYTE;
+#else
+	int bitoff = off * BITS_PER_BYTE;
+#endif
+	u32 bitmask = ((0x1 << size * BITS_PER_BYTE) - 1) << bitoff;
+	u32 load32, old32, new32;
+	u32 ret;
+
+	load32 = READ_ONCE(*p);
+
+	while (true) {
+		ret = (load32 & bitmask) >> bitoff;
+		if (old != ret)
+			return ret;
+
+		old32 = (load32 & ~bitmask) | (old << bitoff);
+		new32 = (load32 & ~bitmask) | (new << bitoff);
+
+		/* Do 32 bit cmpxchg */
+		load32 = cmpxchg_u32(p, old32, new32);
+		if (load32 == old32)
+			return old;
+	}
+}
+
+/* xchg */
+
+static inline u32 xchg_small(volatile void *ptr, u32 x, int size)
+{
+	int off = (unsigned long)ptr % sizeof(u32);
+	volatile u32 *p = ptr - off;
+#ifdef __BIG_ENDIAN
+	int bitoff = (sizeof(u32) - size - off) * BITS_PER_BYTE;
+#else
+	int bitoff = off * BITS_PER_BYTE;
+#endif
+	u32 bitmask = ((0x1 << size * BITS_PER_BYTE) - 1) << bitoff;
+	u32 oldv, newv;
+	u32 ret;
+
+	do {
+		oldv = READ_ONCE(*p);
+		ret = (oldv & bitmask) >> bitoff;
+		newv = (oldv & ~bitmask) | (x << bitoff);
+	} while (cmpxchg_u32(p, oldv, newv) != oldv);
+
+	return ret;
+}
+
+/*
+ * This function doesn't exist, so you'll get a linker error
+ * if something tries to do an invalid cmpxchg().
+ */
+extern unsigned long __cmpxchg_called_with_bad_pointer(void)
+	__compiletime_error("Bad argument size for cmpxchg");
+
+static inline unsigned long __cmpxchg(volatile void *ptr, unsigned long old,
+		unsigned long new, int size)
+{
+	switch (size) {
+	case 1:
+	case 2:
+		return cmpxchg_small(ptr, old, new, size);
+	case 4:
+		return cmpxchg_u32(ptr, old, new);
+	default:
+		return __cmpxchg_called_with_bad_pointer();
+	}
+}
+
 #define cmpxchg(ptr, o, n)						\
 	({								\
 		(__typeof__(*(ptr))) __cmpxchg((ptr),			\
@@ -55,32 +143,27 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size)
  * This function doesn't exist, so you'll get a linker error if
  * something tries to do an invalidly-sized xchg().
  */
-extern void __xchg_called_with_bad_pointer(void);
+extern unsigned long __xchg_called_with_bad_pointer(void)
+	__compiletime_error("Bad argument size for xchg");
 
-static inline unsigned long __xchg(unsigned long val, volatile void *ptr,
-				   int size)
+static inline unsigned long __xchg(volatile void *ptr, unsigned long with,
+		int size)
 {
-	if (size != 4) {
-		__xchg_called_with_bad_pointer();
-		return val;
+	switch (size) {
+	case 1:
+	case 2:
+		return xchg_small(ptr, with, size);
+	case 4:
+		return xchg_u32(ptr, with);
+	default:
+		return __xchg_called_with_bad_pointer();
 	}
-
-	__asm__ __volatile__(
-		"1:	l.lwa %0, 0(%1)		\n"
-		"	l.swa 0(%1), %2		\n"
-		"	l.bnf 1b		\n"
-		"	 l.nop			\n"
-		: "=&r"(val)
-		: "r"(ptr), "r"(val)
-		: "cc", "memory");
-
-	return val;
 }
 
 #define xchg(ptr, with) 						\
 	({								\
-		(__typeof__(*(ptr))) __xchg((unsigned long)(with),	\
-					    (ptr),			\
+		(__typeof__(*(ptr))) __xchg((ptr),			\
+					    (unsigned long)(with),	\
 					    sizeof(*(ptr)));		\
 	})
 
diff --git a/arch/openrisc/include/asm/cpuinfo.h b/arch/openrisc/include/asm/cpuinfo.h
index ec10679d6429..4ea0a33eba6c 100644
--- a/arch/openrisc/include/asm/cpuinfo.h
+++ b/arch/openrisc/include/asm/cpuinfo.h
@@ -19,7 +19,7 @@
 #ifndef __ASM_OPENRISC_CPUINFO_H
 #define __ASM_OPENRISC_CPUINFO_H
 
-struct cpuinfo {
+struct cpuinfo_or1k {
 	u32 clock_frequency;
 
 	u32 icache_size;
@@ -29,8 +29,11 @@ struct cpuinfo {
 	u32 dcache_size;
 	u32 dcache_block_size;
 	u32 dcache_ways;
+
+	u16 coreid;
 };
 
-extern struct cpuinfo cpuinfo;
+extern struct cpuinfo_or1k cpuinfo_or1k[NR_CPUS];
+extern void setup_cpuinfo(void);
 
 #endif /* __ASM_OPENRISC_CPUINFO_H */
diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h
index 8fed278a24b8..618da4a1bffb 100644
--- a/arch/openrisc/include/asm/futex.h
+++ b/arch/openrisc/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_OPENRISC_FUTEX_H
 #define __ASM_OPENRISC_FUTEX_H
 
diff --git a/arch/openrisc/include/asm/mmu_context.h b/arch/openrisc/include/asm/mmu_context.h
index e94b814d2e3c..c380d8caf84f 100644
--- a/arch/openrisc/include/asm/mmu_context.h
+++ b/arch/openrisc/include/asm/mmu_context.h
@@ -34,7 +34,7 @@ extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
  * registers like cr3 on the i386
  */
 
-extern volatile pgd_t *current_pgd;   /* defined in arch/openrisc/mm/fault.c */
+extern volatile pgd_t *current_pgd[]; /* defined in arch/openrisc/mm/fault.c */
 
 static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 {
diff --git a/arch/openrisc/include/asm/pgtable.h b/arch/openrisc/include/asm/pgtable.h
index ff97374ca069..21c71303012f 100644
--- a/arch/openrisc/include/asm/pgtable.h
+++ b/arch/openrisc/include/asm/pgtable.h
@@ -94,7 +94,7 @@ extern void paging_init(void);
  * 64 MB of vmalloc area is comparable to what's available on other arches.
  */
 
-#define VMALLOC_START	(PAGE_OFFSET-0x04000000)
+#define VMALLOC_START	(PAGE_OFFSET-0x04000000UL)
 #define VMALLOC_END	(PAGE_OFFSET)
 #define VMALLOC_VMADDR(x) ((unsigned long)(x))
 
@@ -414,15 +414,21 @@ static inline void pmd_set(pmd_t *pmdp, pte_t *ptep)
 
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; /* defined in head.S */
 
-/*
- * or32 doesn't have any external MMU info: the kernel page
- * tables contain all the necessary information.
- *
- * Actually I am not sure on what this could be used for.
- */
+struct vm_area_struct;
+
+static inline void update_tlb(struct vm_area_struct *vma,
+	unsigned long address, pte_t *pte)
+{
+}
+
+extern void update_cache(struct vm_area_struct *vma,
+	unsigned long address, pte_t *pte);
+
 static inline void update_mmu_cache(struct vm_area_struct *vma,
 	unsigned long address, pte_t *pte)
 {
+	update_tlb(vma, address, pte);
+	update_cache(vma, address, pte);
 }
 
 /* __PHX__ FIXME, SWAP, this probably doesn't work */
diff --git a/arch/openrisc/include/asm/serial.h b/arch/openrisc/include/asm/serial.h
index 270a45241639..cb5932f5447a 100644
--- a/arch/openrisc/include/asm/serial.h
+++ b/arch/openrisc/include/asm/serial.h
@@ -29,7 +29,7 @@
  * it needs to be correct to get the early console working.
  */
 
-#define BASE_BAUD (cpuinfo.clock_frequency/16)
+#define BASE_BAUD (cpuinfo_or1k[smp_processor_id()].clock_frequency/16)
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/openrisc/include/asm/smp.h b/arch/openrisc/include/asm/smp.h
new file mode 100644
index 000000000000..e21d2f12b5b6
--- /dev/null
+++ b/arch/openrisc/include/asm/smp.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2014 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __ASM_OPENRISC_SMP_H
+#define __ASM_OPENRISC_SMP_H
+
+#include <asm/spr.h>
+#include <asm/spr_defs.h>
+
+#define raw_smp_processor_id()	(current_thread_info()->cpu)
+#define hard_smp_processor_id()	mfspr(SPR_COREID)
+
+extern void smp_init_cpus(void);
+
+extern void arch_send_call_function_single_ipi(int cpu);
+extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
+
+extern void set_smp_cross_call(void (*)(const struct cpumask *, unsigned int));
+extern void handle_IPI(unsigned int ipi_msg);
+
+#endif /* __ASM_OPENRISC_SMP_H */
diff --git a/arch/openrisc/include/asm/spinlock.h b/arch/openrisc/include/asm/spinlock.h
index fd00a3a24123..9b761e0e22c3 100644
--- a/arch/openrisc/include/asm/spinlock.h
+++ b/arch/openrisc/include/asm/spinlock.h
@@ -19,6 +19,16 @@
 #ifndef __ASM_OPENRISC_SPINLOCK_H
 #define __ASM_OPENRISC_SPINLOCK_H
 
-#error "or32 doesn't do SMP yet"
+#include <asm/qspinlock.h>
+
+#include <asm/qrwlock.h>
+
+#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
+#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
+
+#define arch_spin_relax(lock)	cpu_relax()
+#define arch_read_relax(lock)	cpu_relax()
+#define arch_write_relax(lock)	cpu_relax()
+
 
 #endif
diff --git a/arch/openrisc/include/asm/spinlock_types.h b/arch/openrisc/include/asm/spinlock_types.h
new file mode 100644
index 000000000000..7c6fb1208c88
--- /dev/null
+++ b/arch/openrisc/include/asm/spinlock_types.h
@@ -0,0 +1,7 @@
+#ifndef _ASM_OPENRISC_SPINLOCK_TYPES_H
+#define _ASM_OPENRISC_SPINLOCK_TYPES_H
+
+#include <asm/qspinlock_types.h>
+#include <asm/qrwlock_types.h>
+
+#endif /* _ASM_OPENRISC_SPINLOCK_TYPES_H */
diff --git a/arch/openrisc/include/asm/spr_defs.h b/arch/openrisc/include/asm/spr_defs.h
index 367dac70326a..154b5a1ee579 100644
--- a/arch/openrisc/include/asm/spr_defs.h
+++ b/arch/openrisc/include/asm/spr_defs.h
@@ -51,6 +51,11 @@
 #define SPR_ICCFGR	(SPRGROUP_SYS + 6)
 #define SPR_DCFGR	(SPRGROUP_SYS + 7)
 #define SPR_PCCFGR	(SPRGROUP_SYS + 8)
+#define SPR_VR2		(SPRGROUP_SYS + 9)
+#define SPR_AVR		(SPRGROUP_SYS + 10)
+#define SPR_EVBAR	(SPRGROUP_SYS + 11)
+#define SPR_AECR	(SPRGROUP_SYS + 12)
+#define SPR_AESR	(SPRGROUP_SYS + 13)
 #define SPR_NPC         (SPRGROUP_SYS + 16)  /* CZ 21/06/01 */
 #define SPR_SR		(SPRGROUP_SYS + 17)  /* CZ 21/06/01 */
 #define SPR_PPC         (SPRGROUP_SYS + 18)  /* CZ 21/06/01 */
@@ -61,6 +66,8 @@
 #define SPR_EEAR_LAST	(SPRGROUP_SYS + 63)
 #define SPR_ESR_BASE	(SPRGROUP_SYS + 64)
 #define SPR_ESR_LAST	(SPRGROUP_SYS + 79)
+#define SPR_COREID	(SPRGROUP_SYS + 128)
+#define SPR_NUMCORES	(SPRGROUP_SYS + 129)
 #define SPR_GPR_BASE	(SPRGROUP_SYS + 1024)
 
 /* Data MMU group */
@@ -135,12 +142,19 @@
 #define SPR_VR_CFG	0x00ff0000  /* Processor configuration */
 #define SPR_VR_RES	0x0000ffc0  /* Reserved */
 #define SPR_VR_REV	0x0000003f  /* Processor revision */
+#define SPR_VR_UVRP	0x00000040  /* Updated Version Registers Present */
 
 #define SPR_VR_VER_OFF	24
 #define SPR_VR_CFG_OFF	16
 #define SPR_VR_REV_OFF	0
 
 /*
+ * Bit definitions for the Version Register 2
+ */
+#define SPR_VR2_CPUID	0xff000000  /* Processor ID */
+#define SPR_VR2_VER	0x00ffffff  /* Processor version */
+
+/*
  * Bit definitions for the Unit Present Register
  *
  */
diff --git a/arch/openrisc/include/asm/string.h b/arch/openrisc/include/asm/string.h
index 64939ccd7531..69b975454ff2 100644
--- a/arch/openrisc/include/asm/string.h
+++ b/arch/openrisc/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_OPENRISC_STRING_H
 #define __ASM_OPENRISC_STRING_H
 
diff --git a/arch/openrisc/include/asm/thread_info.h b/arch/openrisc/include/asm/thread_info.h
index 6e619a79a401..c229aa6bb502 100644
--- a/arch/openrisc/include/asm/thread_info.h
+++ b/arch/openrisc/include/asm/thread_info.h
@@ -74,7 +74,7 @@ struct thread_info {
 	.task		= &tsk,				\
 	.flags		= 0,				\
 	.cpu		= 0,				\
-	.preempt_count	= 1,				\
+	.preempt_count	= INIT_PREEMPT_COUNT,		\
 	.addr_limit	= KERNEL_DS,			\
 	.ksp            = 0,                            \
 }
diff --git a/arch/openrisc/include/asm/time.h b/arch/openrisc/include/asm/time.h
new file mode 100644
index 000000000000..313ee975774b
--- /dev/null
+++ b/arch/openrisc/include/asm/time.h
@@ -0,0 +1,23 @@
+/*
+ * OpenRISC timer API
+ *
+ * Copyright (C) 2017 by Stafford Horne (shorne@gmail.com)
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef __ASM_OR1K_TIME_H
+#define __ASM_OR1K_TIME_H
+
+extern void openrisc_clockevent_init(void);
+
+extern void openrisc_timer_set(unsigned long count);
+extern void openrisc_timer_set_next(unsigned long delta);
+
+#ifdef CONFIG_SMP
+extern void synchronise_count_master(int cpu);
+extern void synchronise_count_slave(int cpu);
+#endif
+
+#endif /* __ASM_OR1K_TIME_H */
diff --git a/arch/openrisc/include/asm/tlbflush.h b/arch/openrisc/include/asm/tlbflush.h
index 6a2accd6cb67..94227f0eaf6d 100644
--- a/arch/openrisc/include/asm/tlbflush.h
+++ b/arch/openrisc/include/asm/tlbflush.h
@@ -33,13 +33,26 @@
  *  - flush_tlb_page(vma, vmaddr) flushes one page
  *  - flush_tlb_range(mm, start, end) flushes a range of pages
  */
+extern void local_flush_tlb_all(void);
+extern void local_flush_tlb_mm(struct mm_struct *mm);
+extern void local_flush_tlb_page(struct vm_area_struct *vma,
+				 unsigned long addr);
+extern void local_flush_tlb_range(struct vm_area_struct *vma,
+				  unsigned long start,
+				  unsigned long end);
 
-void flush_tlb_all(void);
-void flush_tlb_mm(struct mm_struct *mm);
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
-void flush_tlb_range(struct vm_area_struct *vma,
-		     unsigned long start,
-		     unsigned long end);
+#ifndef CONFIG_SMP
+#define flush_tlb_all	local_flush_tlb_all
+#define flush_tlb_mm	local_flush_tlb_mm
+#define flush_tlb_page	local_flush_tlb_page
+#define flush_tlb_range	local_flush_tlb_range
+#else
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *mm);
+extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr);
+extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+			    unsigned long end);
+#endif
 
 static inline void flush_tlb(void)
 {
diff --git a/arch/openrisc/include/asm/unwinder.h b/arch/openrisc/include/asm/unwinder.h
new file mode 100644
index 000000000000..165ec6f02ab8
--- /dev/null
+++ b/arch/openrisc/include/asm/unwinder.h
@@ -0,0 +1,20 @@
+/*
+ * OpenRISC unwinder.h
+ *
+ * Architecture API for unwinding stacks.
+ *
+ * Copyright (C) 2017 Stafford Horne <shorne@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __ASM_OPENRISC_UNWINDER_H
+#define __ASM_OPENRISC_UNWINDER_H
+
+void unwind_stack(void *data, unsigned long *stack,
+		  void (*trace)(void *data, unsigned long addr,
+				int reliable));
+
+#endif /* __ASM_OPENRISC_UNWINDER_H */
diff --git a/arch/openrisc/include/uapi/asm/elf.h b/arch/openrisc/include/uapi/asm/elf.h
index 88842760e66f..e892d5061685 100644
--- a/arch/openrisc/include/uapi/asm/elf.h
+++ b/arch/openrisc/include/uapi/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * OpenRISC Linux
  *
diff --git a/arch/openrisc/include/uapi/asm/param.h b/arch/openrisc/include/uapi/asm/param.h
index c39a336610e2..103471e310ca 100644
--- a/arch/openrisc/include/uapi/asm/param.h
+++ b/arch/openrisc/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * OpenRISC Linux
  *
diff --git a/arch/openrisc/include/uapi/asm/ptrace.h b/arch/openrisc/include/uapi/asm/ptrace.h
index 9760bd17fbcc..d4fab268f6aa 100644
--- a/arch/openrisc/include/uapi/asm/ptrace.h
+++ b/arch/openrisc/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * OpenRISC Linux
  *
diff --git a/arch/openrisc/include/uapi/asm/sigcontext.h b/arch/openrisc/include/uapi/asm/sigcontext.h
index b79c2b19afbe..8ab775fc3450 100644
--- a/arch/openrisc/include/uapi/asm/sigcontext.h
+++ b/arch/openrisc/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * OpenRISC Linux
  *
diff --git a/arch/openrisc/include/uapi/asm/unistd.h b/arch/openrisc/include/uapi/asm/unistd.h
index 471905bd7745..9a3ee389631e 100644
--- a/arch/openrisc/include/uapi/asm/unistd.h
+++ b/arch/openrisc/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * OpenRISC Linux
  *
diff --git a/arch/openrisc/kernel/Makefile b/arch/openrisc/kernel/Makefile
index ec6d9d37cefd..2d172e79f58d 100644
--- a/arch/openrisc/kernel/Makefile
+++ b/arch/openrisc/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
@@ -6,8 +7,10 @@ extra-y	:= head.o vmlinux.lds
 
 obj-y	:= setup.o or32_ksyms.o process.o dma.o \
 	   traps.o time.o irq.o entry.o ptrace.o signal.o \
-	   sys_call_table.o
+	   sys_call_table.o unwinder.o
 
+obj-$(CONFIG_SMP)		+= smp.o sync-timer.o
+obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_MODULES)		+= module.o
 obj-$(CONFIG_OF)		+= prom.o
 
diff --git a/arch/openrisc/kernel/dma.c b/arch/openrisc/kernel/dma.c
index b10369b7e31b..a945f00011b4 100644
--- a/arch/openrisc/kernel/dma.c
+++ b/arch/openrisc/kernel/dma.c
@@ -32,6 +32,7 @@ page_set_nocache(pte_t *pte, unsigned long addr,
 		 unsigned long next, struct mm_walk *walk)
 {
 	unsigned long cl;
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
 	pte_val(*pte) |= _PAGE_CI;
 
@@ -42,7 +43,7 @@ page_set_nocache(pte_t *pte, unsigned long addr,
 	flush_tlb_page(NULL, addr);
 
 	/* Flush page out of dcache */
-	for (cl = __pa(addr); cl < __pa(next); cl += cpuinfo.dcache_block_size)
+	for (cl = __pa(addr); cl < __pa(next); cl += cpuinfo->dcache_block_size)
 		mtspr(SPR_DCBFR, cl);
 
 	return 0;
@@ -140,6 +141,7 @@ or1k_map_page(struct device *dev, struct page *page,
 {
 	unsigned long cl;
 	dma_addr_t addr = page_to_phys(page) + offset;
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
 	if (attrs & DMA_ATTR_SKIP_CPU_SYNC)
 		return addr;
@@ -148,13 +150,13 @@ or1k_map_page(struct device *dev, struct page *page,
 	case DMA_TO_DEVICE:
 		/* Flush the dcache for the requested range */
 		for (cl = addr; cl < addr + size;
-		     cl += cpuinfo.dcache_block_size)
+		     cl += cpuinfo->dcache_block_size)
 			mtspr(SPR_DCBFR, cl);
 		break;
 	case DMA_FROM_DEVICE:
 		/* Invalidate the dcache for the requested range */
 		for (cl = addr; cl < addr + size;
-		     cl += cpuinfo.dcache_block_size)
+		     cl += cpuinfo->dcache_block_size)
 			mtspr(SPR_DCBIR, cl);
 		break;
 	default:
@@ -213,9 +215,10 @@ or1k_sync_single_for_cpu(struct device *dev,
 {
 	unsigned long cl;
 	dma_addr_t addr = dma_handle;
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
 	/* Invalidate the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo.dcache_block_size)
+	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
 		mtspr(SPR_DCBIR, cl);
 }
 
@@ -226,9 +229,10 @@ or1k_sync_single_for_device(struct device *dev,
 {
 	unsigned long cl;
 	dma_addr_t addr = dma_handle;
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
 	/* Flush the dcache for the requested range */
-	for (cl = addr; cl < addr + size; cl += cpuinfo.dcache_block_size)
+	for (cl = addr; cl < addr + size; cl += cpuinfo->dcache_block_size)
 		mtspr(SPR_DCBFR, cl);
 }
 
diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index 1b7160c79646..690d55272ba6 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -42,6 +42,61 @@
 
 /* =========================================================[ macros ]=== */
 
+#ifdef CONFIG_TRACE_IRQFLAGS
+/*
+ * Trace irq on/off creating a stack frame.
+ */
+#define TRACE_IRQS_OP(trace_op)					\
+	l.sw 	-8(r1),r2	/* store frame pointer */		;\
+	l.sw	-4(r1),r9	/* store return address */		;\
+	l.addi	r2,r1,0		/* move sp to fp */			;\
+	l.jal	trace_op						;\
+	 l.addi	r1,r1,-8						;\
+	l.ori	r1,r2,0		/* restore sp */			;\
+	l.lwz	r9,-4(r1)	/* restore return address */		;\
+	l.lwz	r2,-8(r1)	/* restore fp */			;\
+/*
+ * Trace irq on/off and save registers we need that would otherwise be
+ * clobbered.
+ */
+#define TRACE_IRQS_SAVE(t1,trace_op)					\
+	l.sw	-12(r1),t1	/* save extra reg */			;\
+	l.sw 	-8(r1),r2	/* store frame pointer */		;\
+	l.sw	-4(r1),r9	/* store return address */		;\
+	l.addi	r2,r1,0		/* move sp to fp */			;\
+	l.jal	trace_op						;\
+	 l.addi	r1,r1,-12						;\
+	l.ori	r1,r2,0		/* restore sp */			;\
+	l.lwz	r9,-4(r1)	/* restore return address */		;\
+	l.lwz	r2,-8(r1)	/* restore fp */			;\
+	l.lwz	t1,-12(r1)	/* restore extra reg */
+
+#define TRACE_IRQS_OFF	TRACE_IRQS_OP(trace_hardirqs_off)
+#define TRACE_IRQS_ON	TRACE_IRQS_OP(trace_hardirqs_on)
+#define TRACE_IRQS_ON_SYSCALL						\
+	TRACE_IRQS_SAVE(r10,trace_hardirqs_on)				;\
+	l.lwz	r3,PT_GPR3(r1)						;\
+	l.lwz	r4,PT_GPR4(r1)						;\
+	l.lwz	r5,PT_GPR5(r1)						;\
+	l.lwz	r6,PT_GPR6(r1)						;\
+	l.lwz	r7,PT_GPR7(r1)						;\
+	l.lwz	r8,PT_GPR8(r1)						;\
+	l.lwz	r11,PT_GPR11(r1)
+#define TRACE_IRQS_OFF_ENTRY						\
+	l.lwz	r5,PT_SR(r1)						;\
+	l.andi	r3,r5,(SPR_SR_IEE|SPR_SR_TEE)				;\
+	l.sfeq	r5,r0		/* skip trace if irqs were already off */;\
+	l.bf	1f							;\
+	 l.nop								;\
+	TRACE_IRQS_SAVE(r4,trace_hardirqs_off)				;\
+1:
+#else
+#define TRACE_IRQS_OFF
+#define TRACE_IRQS_ON
+#define TRACE_IRQS_OFF_ENTRY
+#define TRACE_IRQS_ON_SYSCALL
+#endif
+
 /*
  * We need to disable interrupts at beginning of RESTORE_ALL
  * since interrupt might come in after we've loaded EPC return address
@@ -124,6 +179,7 @@ handler:							;\
 	/* r30 already save */					;\
 /*        l.sw    PT_GPR30(r1),r30*/					;\
 	l.sw    PT_GPR31(r1),r31					;\
+	TRACE_IRQS_OFF_ENTRY						;\
 	/* Store -1 in orig_gpr11 for non-syscall exceptions */	;\
 	l.addi	r30,r0,-1					;\
 	l.sw	PT_ORIG_GPR11(r1),r30
@@ -557,9 +613,6 @@ _string_syscall_return:
 	.align 4
 
 ENTRY(_sys_call_handler)
-	/* syscalls run with interrupts enabled */
-	ENABLE_INTERRUPTS(r29)		// enable interrupts, r29 is temp
-
 	/* r1, EPCR, ESR a already saved */
 	l.sw	PT_GPR2(r1),r2
 	/* r3-r8 must be saved because syscall restart relies
@@ -597,6 +650,10 @@ ENTRY(_sys_call_handler)
 /*	l.sw    PT_GPR30(r1),r30 */
 
 _syscall_check_trace_enter:
+	/* syscalls run with interrupts enabled */
+	TRACE_IRQS_ON_SYSCALL
+	ENABLE_INTERRUPTS(r29)		// enable interrupts, r29 is temp
+
 	/* If TIF_SYSCALL_TRACE is set, then we want to do syscall tracing */
 	l.lwz	r30,TI_FLAGS(r10)
 	l.andi	r30,r30,_TIF_SYSCALL_TRACE
@@ -657,6 +714,7 @@ _syscall_check_trace_leave:
 _syscall_check_work:
 	/* Here we need to disable interrupts */
 	DISABLE_INTERRUPTS(r27,r29)
+	TRACE_IRQS_OFF
 	l.lwz	r30,TI_FLAGS(r10)
 	l.andi	r30,r30,_TIF_WORK_MASK
 	l.sfne	r30,r0
@@ -871,6 +929,7 @@ UNHANDLED_EXCEPTION(_vector_0x1f00,0x1f00)
 
 _resume_userspace:
 	DISABLE_INTERRUPTS(r3,r4)
+	TRACE_IRQS_OFF
 	l.lwz	r4,TI_FLAGS(r10)
 	l.andi	r13,r4,_TIF_WORK_MASK
 	l.sfeqi	r13,0
@@ -909,6 +968,15 @@ _work_pending:
 	 l.lwz	r8,PT_GPR8(r1)
 
 _restore_all:
+#ifdef CONFIG_TRACE_IRQFLAGS
+	l.lwz	r4,PT_SR(r1)
+	l.andi	r3,r4,(SPR_SR_IEE|SPR_SR_TEE)
+	l.sfeq	r3,r0		/* skip trace if irqs were off */
+	l.bf	skip_hardirqs_on
+	 l.nop
+	TRACE_IRQS_ON
+skip_hardirqs_on:
+#endif
 	RESTORE_ALL
 	/* This returns to userspace code */
 
diff --git a/arch/openrisc/kernel/head.S b/arch/openrisc/kernel/head.S
index 1e87913576e3..fb02b2a1d6f2 100644
--- a/arch/openrisc/kernel/head.S
+++ b/arch/openrisc/kernel/head.S
@@ -49,9 +49,31 @@
 
 /* ============================================[ tmp store locations ]=== */
 
+#define SPR_SHADOW_GPR(x)	((x) + SPR_GPR_BASE + 32)
+
 /*
  * emergency_print temporary stores
  */
+#ifdef CONFIG_OPENRISC_HAVE_SHADOW_GPRS
+#define EMERGENCY_PRINT_STORE_GPR4	l.mtspr r0,r4,SPR_SHADOW_GPR(14)
+#define EMERGENCY_PRINT_LOAD_GPR4	l.mfspr r4,r0,SPR_SHADOW_GPR(14)
+
+#define EMERGENCY_PRINT_STORE_GPR5	l.mtspr r0,r5,SPR_SHADOW_GPR(15)
+#define EMERGENCY_PRINT_LOAD_GPR5	l.mfspr r5,r0,SPR_SHADOW_GPR(15)
+
+#define EMERGENCY_PRINT_STORE_GPR6	l.mtspr r0,r6,SPR_SHADOW_GPR(16)
+#define EMERGENCY_PRINT_LOAD_GPR6	l.mfspr r6,r0,SPR_SHADOW_GPR(16)
+
+#define EMERGENCY_PRINT_STORE_GPR7	l.mtspr r0,r7,SPR_SHADOW_GPR(7)
+#define EMERGENCY_PRINT_LOAD_GPR7	l.mfspr r7,r0,SPR_SHADOW_GPR(7)
+
+#define EMERGENCY_PRINT_STORE_GPR8	l.mtspr r0,r8,SPR_SHADOW_GPR(8)
+#define EMERGENCY_PRINT_LOAD_GPR8	l.mfspr r8,r0,SPR_SHADOW_GPR(8)
+
+#define EMERGENCY_PRINT_STORE_GPR9	l.mtspr r0,r9,SPR_SHADOW_GPR(9)
+#define EMERGENCY_PRINT_LOAD_GPR9	l.mfspr r9,r0,SPR_SHADOW_GPR(9)
+
+#else /* !CONFIG_OPENRISC_HAVE_SHADOW_GPRS */
 #define EMERGENCY_PRINT_STORE_GPR4	l.sw    0x20(r0),r4
 #define EMERGENCY_PRINT_LOAD_GPR4	l.lwz   r4,0x20(r0)
 
@@ -70,13 +92,28 @@
 #define EMERGENCY_PRINT_STORE_GPR9	l.sw    0x34(r0),r9
 #define EMERGENCY_PRINT_LOAD_GPR9	l.lwz   r9,0x34(r0)
 
+#endif
 
 /*
  * TLB miss handlers temorary stores
  */
-#define EXCEPTION_STORE_GPR9		l.sw    0x10(r0),r9
-#define EXCEPTION_LOAD_GPR9		l.lwz   r9,0x10(r0)
+#ifdef CONFIG_OPENRISC_HAVE_SHADOW_GPRS
+#define EXCEPTION_STORE_GPR2		l.mtspr r0,r2,SPR_SHADOW_GPR(2)
+#define EXCEPTION_LOAD_GPR2		l.mfspr r2,r0,SPR_SHADOW_GPR(2)
+
+#define EXCEPTION_STORE_GPR3		l.mtspr r0,r3,SPR_SHADOW_GPR(3)
+#define EXCEPTION_LOAD_GPR3		l.mfspr r3,r0,SPR_SHADOW_GPR(3)
+
+#define EXCEPTION_STORE_GPR4		l.mtspr r0,r4,SPR_SHADOW_GPR(4)
+#define EXCEPTION_LOAD_GPR4		l.mfspr r4,r0,SPR_SHADOW_GPR(4)
+
+#define EXCEPTION_STORE_GPR5		l.mtspr r0,r5,SPR_SHADOW_GPR(5)
+#define EXCEPTION_LOAD_GPR5		l.mfspr r5,r0,SPR_SHADOW_GPR(5)
+
+#define EXCEPTION_STORE_GPR6		l.mtspr r0,r6,SPR_SHADOW_GPR(6)
+#define EXCEPTION_LOAD_GPR6		l.mfspr r6,r0,SPR_SHADOW_GPR(6)
 
+#else /* !CONFIG_OPENRISC_HAVE_SHADOW_GPRS */
 #define EXCEPTION_STORE_GPR2		l.sw    0x64(r0),r2
 #define EXCEPTION_LOAD_GPR2		l.lwz   r2,0x64(r0)
 
@@ -92,35 +129,67 @@
 #define EXCEPTION_STORE_GPR6		l.sw    0x74(r0),r6
 #define EXCEPTION_LOAD_GPR6		l.lwz   r6,0x74(r0)
 
+#endif
 
 /*
  * EXCEPTION_HANDLE temporary stores
  */
 
+#ifdef CONFIG_OPENRISC_HAVE_SHADOW_GPRS
+#define EXCEPTION_T_STORE_GPR30		l.mtspr r0,r30,SPR_SHADOW_GPR(30)
+#define EXCEPTION_T_LOAD_GPR30(reg)	l.mfspr reg,r0,SPR_SHADOW_GPR(30)
+
+#define EXCEPTION_T_STORE_GPR10		l.mtspr r0,r10,SPR_SHADOW_GPR(10)
+#define EXCEPTION_T_LOAD_GPR10(reg)	l.mfspr reg,r0,SPR_SHADOW_GPR(10)
+
+#define EXCEPTION_T_STORE_SP		l.mtspr r0,r1,SPR_SHADOW_GPR(1)
+#define EXCEPTION_T_LOAD_SP(reg)	l.mfspr reg,r0,SPR_SHADOW_GPR(1)
+
+#else /* !CONFIG_OPENRISC_HAVE_SHADOW_GPRS */
 #define EXCEPTION_T_STORE_GPR30		l.sw    0x78(r0),r30
 #define EXCEPTION_T_LOAD_GPR30(reg)	l.lwz   reg,0x78(r0)
 
 #define EXCEPTION_T_STORE_GPR10		l.sw    0x7c(r0),r10
 #define EXCEPTION_T_LOAD_GPR10(reg)	l.lwz   reg,0x7c(r0)
 
-#define EXCEPTION_T_STORE_SP		l.sw	0x80(r0),r1
+#define EXCEPTION_T_STORE_SP		l.sw    0x80(r0),r1
 #define EXCEPTION_T_LOAD_SP(reg)	l.lwz   reg,0x80(r0)
-
-/*
- * For UNHANLDED_EXCEPTION
- */
-
-#define EXCEPTION_T_STORE_GPR31		l.sw    0x84(r0),r31
-#define EXCEPTION_T_LOAD_GPR31(reg)	l.lwz   reg,0x84(r0)
+#endif
 
 /* =========================================================[ macros ]=== */
 
-
+#ifdef CONFIG_SMP
+#define GET_CURRENT_PGD(reg,t1)					\
+	LOAD_SYMBOL_2_GPR(reg,current_pgd)			;\
+	l.mfspr	t1,r0,SPR_COREID				;\
+	l.slli	t1,t1,2						;\
+	l.add	reg,reg,t1					;\
+	tophys  (t1,reg)					;\
+	l.lwz   reg,0(t1)
+#else
 #define GET_CURRENT_PGD(reg,t1)					\
 	LOAD_SYMBOL_2_GPR(reg,current_pgd)			;\
 	tophys  (t1,reg)					;\
 	l.lwz   reg,0(t1)
+#endif
 
+/* Load r10 from current_thread_info_set - clobbers r1 and r30 */
+#ifdef CONFIG_SMP
+#define GET_CURRENT_THREAD_INFO					\
+	LOAD_SYMBOL_2_GPR(r1,current_thread_info_set)		;\
+	tophys  (r30,r1)					;\
+	l.mfspr	r10,r0,SPR_COREID				;\
+	l.slli	r10,r10,2					;\
+	l.add	r30,r30,r10					;\
+	/* r10: current_thread_info  */				;\
+	l.lwz   r10,0(r30)
+#else
+#define GET_CURRENT_THREAD_INFO					\
+	LOAD_SYMBOL_2_GPR(r1,current_thread_info_set)		;\
+	tophys  (r30,r1)					;\
+	/* r10: current_thread_info  */				;\
+	l.lwz   r10,0(r30)
+#endif
 
 /*
  * DSCR: this is a common hook for handling exceptions. it will save
@@ -163,10 +232,7 @@
 	l.bnf   2f                            /* kernel_mode */	;\
 	 EXCEPTION_T_STORE_SP                 /* delay slot */	;\
 1: /* user_mode:   */						;\
-	LOAD_SYMBOL_2_GPR(r1,current_thread_info_set)		;\
-	tophys  (r30,r1)					;\
-	/* r10: current_thread_info  */				;\
-	l.lwz   r10,0(r30)					;\
+	GET_CURRENT_THREAD_INFO	 				;\
 	tophys  (r30,r10)					;\
 	l.lwz   r1,(TI_KSP)(r30)				;\
 	/* fall through */					;\
@@ -226,7 +292,7 @@
  *
  */
 #define UNHANDLED_EXCEPTION(handler)				\
-	EXCEPTION_T_STORE_GPR31					;\
+	EXCEPTION_T_STORE_GPR30					;\
 	EXCEPTION_T_STORE_GPR10					;\
 	EXCEPTION_T_STORE_SP					;\
 	/* temporary store r3, r9 into r1, r10 */		;\
@@ -255,35 +321,35 @@
 	/* r1: KSP, r10: current, r31: __pa(KSP) */		;\
 	/* r12:	temp, syscall indicator, r13 temp */		;\
 	l.addi  r1,r1,-(INT_FRAME_SIZE)				;\
-	/* r1 is KSP, r31 is __pa(KSP) */			;\
-	tophys  (r31,r1)					;\
-	l.sw    PT_GPR12(r31),r12					;\
+	/* r1 is KSP, r30 is __pa(KSP) */			;\
+	tophys  (r30,r1)					;\
+	l.sw    PT_GPR12(r30),r12					;\
 	l.mfspr r12,r0,SPR_EPCR_BASE				;\
-	l.sw    PT_PC(r31),r12					;\
+	l.sw    PT_PC(r30),r12					;\
 	l.mfspr r12,r0,SPR_ESR_BASE				;\
-	l.sw    PT_SR(r31),r12					;\
+	l.sw    PT_SR(r30),r12					;\
 	/* save r31 */						;\
-	EXCEPTION_T_LOAD_GPR31(r12)				;\
-	l.sw	PT_GPR31(r31),r12					;\
+	EXCEPTION_T_LOAD_GPR30(r12)				;\
+	l.sw	PT_GPR30(r30),r12					;\
 	/* save r10 as was prior to exception */		;\
 	EXCEPTION_T_LOAD_GPR10(r12)				;\
-	l.sw	PT_GPR10(r31),r12					;\
+	l.sw	PT_GPR10(r30),r12					;\
 	/* save PT_SP as was prior to exception */			;\
 	EXCEPTION_T_LOAD_SP(r12)				;\
-	l.sw	PT_SP(r31),r12					;\
-	l.sw    PT_GPR13(r31),r13					;\
+	l.sw	PT_SP(r30),r12					;\
+	l.sw    PT_GPR13(r30),r13					;\
 	/* --> */						;\
 	/* save exception r4, set r4 = EA */			;\
-	l.sw	PT_GPR4(r31),r4					;\
+	l.sw	PT_GPR4(r30),r4					;\
 	l.mfspr r4,r0,SPR_EEAR_BASE				;\
 	/* r12 == 1 if we come from syscall */			;\
 	CLEAR_GPR(r12)						;\
 	/* ----- play a MMU trick ----- */			;\
-	l.ori	r31,r0,(EXCEPTION_SR)				;\
-	l.mtspr	r0,r31,SPR_ESR_BASE				;\
+	l.ori	r30,r0,(EXCEPTION_SR)				;\
+	l.mtspr	r0,r30,SPR_ESR_BASE				;\
 	/* r31:	EA address of handler */			;\
-	LOAD_SYMBOL_2_GPR(r31,handler)				;\
-	l.mtspr r0,r31,SPR_EPCR_BASE				;\
+	LOAD_SYMBOL_2_GPR(r30,handler)				;\
+	l.mtspr r0,r30,SPR_EPCR_BASE				;\
 	l.rfe
 
 /* =====================================================[ exceptions] === */
@@ -487,6 +553,12 @@ _start:
 	CLEAR_GPR(r30)
 	CLEAR_GPR(r31)
 
+#ifdef CONFIG_SMP
+	l.mfspr	r26,r0,SPR_COREID
+	l.sfeq	r26,r0
+	l.bnf	secondary_wait
+	 l.nop
+#endif
 	/*
 	 * set up initial ksp and current
 	 */
@@ -638,6 +710,100 @@ _flush_tlb:
 	l.jr	r9
 	 l.nop
 
+#ifdef CONFIG_SMP
+secondary_wait:
+	/* Doze the cpu until we are asked to run */
+	/* If we dont have power management skip doze */
+	l.mfspr r25,r0,SPR_UPR
+	l.andi  r25,r25,SPR_UPR_PMP
+	l.sfeq  r25,r0
+	l.bf	secondary_check_release
+	 l.nop
+
+	/* Setup special secondary exception handler */
+	LOAD_SYMBOL_2_GPR(r3, _secondary_evbar)
+	tophys(r25,r3)
+	l.mtspr	r0,r25,SPR_EVBAR
+
+	/* Enable Interrupts */
+	l.mfspr	r25,r0,SPR_SR
+	l.ori	r25,r25,SPR_SR_IEE
+	l.mtspr	r0,r25,SPR_SR
+
+	/* Unmask interrupts interrupts */
+	l.mfspr r25,r0,SPR_PICMR
+	l.ori   r25,r25,0xffff
+	l.mtspr	r0,r25,SPR_PICMR
+
+	/* Doze */
+	l.mfspr r25,r0,SPR_PMR
+	LOAD_SYMBOL_2_GPR(r3, SPR_PMR_DME)
+	l.or    r25,r25,r3
+	l.mtspr r0,r25,SPR_PMR
+
+	/* Wakeup - Restore exception handler */
+	l.mtspr	r0,r0,SPR_EVBAR
+
+secondary_check_release:
+	/*
+	 * Check if we actually got the release signal, if not go-back to
+	 * sleep.
+	 */
+	l.mfspr	r25,r0,SPR_COREID
+	LOAD_SYMBOL_2_GPR(r3, secondary_release)
+	tophys(r4, r3)
+	l.lwz	r3,0(r4)
+	l.sfeq	r25,r3
+	l.bnf	secondary_wait
+	 l.nop
+	/* fall through to secondary_init */
+
+secondary_init:
+	/*
+	 * set up initial ksp and current
+	 */
+	LOAD_SYMBOL_2_GPR(r10, secondary_thread_info)
+	tophys	(r30,r10)
+	l.lwz	r10,0(r30)
+	l.addi	r1,r10,THREAD_SIZE
+	tophys	(r30,r10)
+	l.sw	TI_KSP(r30),r1
+
+	l.jal	_ic_enable
+	 l.nop
+
+	l.jal	_dc_enable
+	 l.nop
+
+	l.jal	_flush_tlb
+	 l.nop
+
+	/*
+	 * enable dmmu & immu
+	 */
+	l.mfspr	r30,r0,SPR_SR
+	l.movhi	r28,hi(SPR_SR_DME | SPR_SR_IME)
+	l.ori	r28,r28,lo(SPR_SR_DME | SPR_SR_IME)
+	l.or	r30,r30,r28
+	/*
+	 * This is a bit tricky, we need to switch over from physical addresses
+	 * to virtual addresses on the fly.
+	 * To do that, we first set up ESR with the IME and DME bits set.
+	 * Then EPCR is set to secondary_start and then a l.rfe is issued to
+	 * "jump" to that.
+	 */
+	l.mtspr	r0,r30,SPR_ESR_BASE
+	LOAD_SYMBOL_2_GPR(r30, secondary_start)
+	l.mtspr	r0,r30,SPR_EPCR_BASE
+	l.rfe
+
+secondary_start:
+	LOAD_SYMBOL_2_GPR(r30, secondary_start_kernel)
+	l.jr    r30
+	 l.nop
+
+#endif
+
 /* ========================================[ cache ]=== */
 
 	/* alignment here so we don't change memory offsets with
@@ -1533,6 +1699,17 @@ ENTRY(_early_uart_init)
 	l.jr	r9
 	l.nop
 
+	.align	0x1000
+	.global _secondary_evbar
+_secondary_evbar:
+
+	.space 0x800
+	/* Just disable interrupts and Return */
+	l.ori	r3,r0,SPR_SR_SM
+	l.mtspr	r0,r3,SPR_ESR_BASE
+	l.rfe
+
+
 	.section .rodata
 _string_unhandled_exception:
 	.string "\n\rRunarunaround: Unhandled exception 0x\0"
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index dbf5ee95a0d5..9d28ab14d139 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -93,7 +93,7 @@ static void __init setup_memory(void)
 	memblock_dump_all();
 }
 
-struct cpuinfo cpuinfo;
+struct cpuinfo_or1k cpuinfo_or1k[NR_CPUS];
 
 static void print_cpuinfo(void)
 {
@@ -101,12 +101,13 @@ static void print_cpuinfo(void)
 	unsigned long vr = mfspr(SPR_VR);
 	unsigned int version;
 	unsigned int revision;
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
 
 	version = (vr & SPR_VR_VER) >> 24;
 	revision = (vr & SPR_VR_REV);
 
 	printk(KERN_INFO "CPU: OpenRISC-%x (revision %d) @%d MHz\n",
-	       version, revision, cpuinfo.clock_frequency / 1000000);
+	       version, revision, cpuinfo->clock_frequency / 1000000);
 
 	if (!(upr & SPR_UPR_UP)) {
 		printk(KERN_INFO
@@ -117,15 +118,15 @@ static void print_cpuinfo(void)
 	if (upr & SPR_UPR_DCP)
 		printk(KERN_INFO
 		       "-- dcache: %4d bytes total, %2d bytes/line, %d way(s)\n",
-		       cpuinfo.dcache_size, cpuinfo.dcache_block_size,
-		       cpuinfo.dcache_ways);
+		       cpuinfo->dcache_size, cpuinfo->dcache_block_size,
+		       cpuinfo->dcache_ways);
 	else
 		printk(KERN_INFO "-- dcache disabled\n");
 	if (upr & SPR_UPR_ICP)
 		printk(KERN_INFO
 		       "-- icache: %4d bytes total, %2d bytes/line, %d way(s)\n",
-		       cpuinfo.icache_size, cpuinfo.icache_block_size,
-		       cpuinfo.icache_ways);
+		       cpuinfo->icache_size, cpuinfo->icache_block_size,
+		       cpuinfo->icache_ways);
 	else
 		printk(KERN_INFO "-- icache disabled\n");
 
@@ -153,38 +154,58 @@ static void print_cpuinfo(void)
 		printk(KERN_INFO "-- custom unit(s)\n");
 }
 
+static struct device_node *setup_find_cpu_node(int cpu)
+{
+	u32 hwid;
+	struct device_node *cpun;
+	struct device_node *cpus = of_find_node_by_path("/cpus");
+
+	for_each_available_child_of_node(cpus, cpun) {
+		if (of_property_read_u32(cpun, "reg", &hwid))
+			continue;
+		if (hwid == cpu)
+			return cpun;
+	}
+
+	return NULL;
+}
+
 void __init setup_cpuinfo(void)
 {
 	struct device_node *cpu;
 	unsigned long iccfgr, dccfgr;
 	unsigned long cache_set_size;
+	int cpu_id = smp_processor_id();
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[cpu_id];
 
-	cpu = of_find_compatible_node(NULL, NULL, "opencores,or1200-rtlsvn481");
+	cpu = setup_find_cpu_node(cpu_id);
 	if (!cpu)
-		panic("No compatible CPU found in device tree...\n");
+		panic("Couldn't find CPU%d in device tree...\n", cpu_id);
 
 	iccfgr = mfspr(SPR_ICCFGR);
-	cpuinfo.icache_ways = 1 << (iccfgr & SPR_ICCFGR_NCW);
+	cpuinfo->icache_ways = 1 << (iccfgr & SPR_ICCFGR_NCW);
 	cache_set_size = 1 << ((iccfgr & SPR_ICCFGR_NCS) >> 3);
-	cpuinfo.icache_block_size = 16 << ((iccfgr & SPR_ICCFGR_CBS) >> 7);
-	cpuinfo.icache_size =
-	    cache_set_size * cpuinfo.icache_ways * cpuinfo.icache_block_size;
+	cpuinfo->icache_block_size = 16 << ((iccfgr & SPR_ICCFGR_CBS) >> 7);
+	cpuinfo->icache_size =
+	    cache_set_size * cpuinfo->icache_ways * cpuinfo->icache_block_size;
 
 	dccfgr = mfspr(SPR_DCCFGR);
-	cpuinfo.dcache_ways = 1 << (dccfgr & SPR_DCCFGR_NCW);
+	cpuinfo->dcache_ways = 1 << (dccfgr & SPR_DCCFGR_NCW);
 	cache_set_size = 1 << ((dccfgr & SPR_DCCFGR_NCS) >> 3);
-	cpuinfo.dcache_block_size = 16 << ((dccfgr & SPR_DCCFGR_CBS) >> 7);
-	cpuinfo.dcache_size =
-	    cache_set_size * cpuinfo.dcache_ways * cpuinfo.dcache_block_size;
+	cpuinfo->dcache_block_size = 16 << ((dccfgr & SPR_DCCFGR_CBS) >> 7);
+	cpuinfo->dcache_size =
+	    cache_set_size * cpuinfo->dcache_ways * cpuinfo->dcache_block_size;
 
 	if (of_property_read_u32(cpu, "clock-frequency",
-				 &cpuinfo.clock_frequency)) {
+				 &cpuinfo->clock_frequency)) {
 		printk(KERN_WARNING
 		       "Device tree missing CPU 'clock-frequency' parameter."
 		       "Assuming frequency 25MHZ"
 		       "This is probably not what you want.");
 	}
 
+	cpuinfo->coreid = mfspr(SPR_COREID);
+
 	of_node_put(cpu);
 
 	print_cpuinfo();
@@ -251,8 +272,8 @@ void __init detect_unit_config(unsigned long upr, unsigned long mask,
 void calibrate_delay(void)
 {
 	const int *val;
-	struct device_node *cpu = NULL;
-	cpu = of_find_compatible_node(NULL, NULL, "opencores,or1200-rtlsvn481");
+	struct device_node *cpu = setup_find_cpu_node(smp_processor_id());
+
 	val = of_get_property(cpu, "clock-frequency", NULL);
 	if (!val)
 		panic("no cpu 'clock-frequency' parameter in device tree");
@@ -268,6 +289,10 @@ void __init setup_arch(char **cmdline_p)
 
 	setup_cpuinfo();
 
+#ifdef CONFIG_SMP
+	smp_init_cpus();
+#endif
+
 	/* process 1's initial memory region is the kernel code/data */
 	init_mm.start_code = (unsigned long)_stext;
 	init_mm.end_code = (unsigned long)_etext;
@@ -302,54 +327,78 @@ void __init setup_arch(char **cmdline_p)
 
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
-	unsigned long vr;
-	int version, revision;
+	unsigned int vr, cpucfgr;
+	unsigned int avr;
+	unsigned int version;
+	struct cpuinfo_or1k *cpuinfo = v;
 
 	vr = mfspr(SPR_VR);
-	version = (vr & SPR_VR_VER) >> 24;
-	revision = vr & SPR_VR_REV;
-
-	seq_printf(m,
-		  "cpu\t\t: OpenRISC-%x\n"
-		  "revision\t: %d\n"
-		  "frequency\t: %ld\n"
-		  "dcache size\t: %d bytes\n"
-		  "dcache block size\t: %d bytes\n"
-		  "dcache ways\t: %d\n"
-		  "icache size\t: %d bytes\n"
-		  "icache block size\t: %d bytes\n"
-		  "icache ways\t: %d\n"
-		  "immu\t\t: %d entries, %lu ways\n"
-		  "dmmu\t\t: %d entries, %lu ways\n"
-		  "bogomips\t: %lu.%02lu\n",
-		  version,
-		  revision,
-		  loops_per_jiffy * HZ,
-		  cpuinfo.dcache_size,
-		  cpuinfo.dcache_block_size,
-		  cpuinfo.dcache_ways,
-		  cpuinfo.icache_size,
-		  cpuinfo.icache_block_size,
-		  cpuinfo.icache_ways,
-		  1 << ((mfspr(SPR_DMMUCFGR) & SPR_DMMUCFGR_NTS) >> 2),
-		  1 + (mfspr(SPR_DMMUCFGR) & SPR_DMMUCFGR_NTW),
-		  1 << ((mfspr(SPR_IMMUCFGR) & SPR_IMMUCFGR_NTS) >> 2),
-		  1 + (mfspr(SPR_IMMUCFGR) & SPR_IMMUCFGR_NTW),
-		  (loops_per_jiffy * HZ) / 500000,
-		  ((loops_per_jiffy * HZ) / 5000) % 100);
+	cpucfgr = mfspr(SPR_CPUCFGR);
+
+#ifdef CONFIG_SMP
+	seq_printf(m, "processor\t\t: %d\n", cpuinfo->coreid);
+#endif
+	if (vr & SPR_VR_UVRP) {
+		vr = mfspr(SPR_VR2);
+		version = vr & SPR_VR2_VER;
+		avr = mfspr(SPR_AVR);
+		seq_printf(m, "cpu architecture\t: "
+			   "OpenRISC 1000 (%d.%d-rev%d)\n",
+			   (avr >> 24) & 0xff,
+			   (avr >> 16) & 0xff,
+			   (avr >> 8) & 0xff);
+		seq_printf(m, "cpu implementation id\t: 0x%x\n",
+			   (vr & SPR_VR2_CPUID) >> 24);
+		seq_printf(m, "cpu version\t\t: 0x%x\n", version);
+	} else {
+		version = (vr & SPR_VR_VER) >> 24;
+		seq_printf(m, "cpu\t\t\t: OpenRISC-%x\n", version);
+		seq_printf(m, "revision\t\t: %d\n", vr & SPR_VR_REV);
+	}
+	seq_printf(m, "frequency\t\t: %ld\n", loops_per_jiffy * HZ);
+	seq_printf(m, "dcache size\t\t: %d bytes\n", cpuinfo->dcache_size);
+	seq_printf(m, "dcache block size\t: %d bytes\n",
+		   cpuinfo->dcache_block_size);
+	seq_printf(m, "dcache ways\t\t: %d\n", cpuinfo->dcache_ways);
+	seq_printf(m, "icache size\t\t: %d bytes\n", cpuinfo->icache_size);
+	seq_printf(m, "icache block size\t: %d bytes\n",
+		   cpuinfo->icache_block_size);
+	seq_printf(m, "icache ways\t\t: %d\n", cpuinfo->icache_ways);
+	seq_printf(m, "immu\t\t\t: %d entries, %lu ways\n",
+		   1 << ((mfspr(SPR_DMMUCFGR) & SPR_DMMUCFGR_NTS) >> 2),
+		   1 + (mfspr(SPR_DMMUCFGR) & SPR_DMMUCFGR_NTW));
+	seq_printf(m, "dmmu\t\t\t: %d entries, %lu ways\n",
+		   1 << ((mfspr(SPR_IMMUCFGR) & SPR_IMMUCFGR_NTS) >> 2),
+		   1 + (mfspr(SPR_IMMUCFGR) & SPR_IMMUCFGR_NTW));
+	seq_printf(m, "bogomips\t\t: %lu.%02lu\n",
+		   (loops_per_jiffy * HZ) / 500000,
+		   ((loops_per_jiffy * HZ) / 5000) % 100);
+
+	seq_puts(m, "features\t\t: ");
+	seq_printf(m, "%s ", cpucfgr & SPR_CPUCFGR_OB32S ? "orbis32" : "");
+	seq_printf(m, "%s ", cpucfgr & SPR_CPUCFGR_OB64S ? "orbis64" : "");
+	seq_printf(m, "%s ", cpucfgr & SPR_CPUCFGR_OF32S ? "orfpx32" : "");
+	seq_printf(m, "%s ", cpucfgr & SPR_CPUCFGR_OF64S ? "orfpx64" : "");
+	seq_printf(m, "%s ", cpucfgr & SPR_CPUCFGR_OV64S ? "orvdx64" : "");
+	seq_puts(m, "\n");
+
+	seq_puts(m, "\n");
+
 	return 0;
 }
 
-static void *c_start(struct seq_file *m, loff_t * pos)
+static void *c_start(struct seq_file *m, loff_t *pos)
 {
-	/* We only have one CPU... */
-	return *pos < 1 ? (void *)1 : NULL;
+	*pos = cpumask_next(*pos - 1, cpu_online_mask);
+	if ((*pos) < nr_cpu_ids)
+		return &cpuinfo_or1k[*pos];
+	return NULL;
 }
 
-static void *c_next(struct seq_file *m, void *v, loff_t * pos)
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 {
-	++*pos;
-	return NULL;
+	(*pos)++;
+	return c_start(m, pos);
 }
 
 static void c_stop(struct seq_file *m, void *v)
diff --git a/arch/openrisc/kernel/smp.c b/arch/openrisc/kernel/smp.c
new file mode 100644
index 000000000000..7d518ee8bddc
--- /dev/null
+++ b/arch/openrisc/kernel/smp.c
@@ -0,0 +1,259 @@
+/*
+ * Copyright (C) 2014 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
+ * Copyright (C) 2017 Stafford Horne <shorne@gmail.com>
+ *
+ * Based on arm64 and arc implementations
+ * Copyright (C) 2013 ARM Ltd.
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/smp.h>
+#include <linux/cpu.h>
+#include <linux/sched.h>
+#include <linux/irq.h>
+#include <asm/cpuinfo.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+#include <asm/cacheflush.h>
+#include <asm/time.h>
+
+static void (*smp_cross_call)(const struct cpumask *, unsigned int);
+
+unsigned long secondary_release = -1;
+struct thread_info *secondary_thread_info;
+
+enum ipi_msg_type {
+	IPI_WAKEUP,
+	IPI_RESCHEDULE,
+	IPI_CALL_FUNC,
+	IPI_CALL_FUNC_SINGLE,
+};
+
+static DEFINE_SPINLOCK(boot_lock);
+
+static void boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+	/*
+	 * set synchronisation state between this boot processor
+	 * and the secondary one
+	 */
+	spin_lock(&boot_lock);
+
+	secondary_release = cpu;
+	smp_cross_call(cpumask_of(cpu), IPI_WAKEUP);
+
+	/*
+	 * now the secondary core is starting up let it run its
+	 * calibrations, then wait for it to finish
+	 */
+	spin_unlock(&boot_lock);
+}
+
+void __init smp_prepare_boot_cpu(void)
+{
+}
+
+void __init smp_init_cpus(void)
+{
+	int i;
+
+	for (i = 0; i < NR_CPUS; i++)
+		set_cpu_possible(i, true);
+}
+
+void __init smp_prepare_cpus(unsigned int max_cpus)
+{
+	int i;
+
+	/*
+	 * Initialise the present map, which describes the set of CPUs
+	 * actually populated at the present time.
+	 */
+	for (i = 0; i < max_cpus; i++)
+		set_cpu_present(i, true);
+}
+
+void __init smp_cpus_done(unsigned int max_cpus)
+{
+}
+
+static DECLARE_COMPLETION(cpu_running);
+
+int __cpu_up(unsigned int cpu, struct task_struct *idle)
+{
+	if (smp_cross_call == NULL) {
+		pr_warn("CPU%u: failed to start, IPI controller missing",
+			cpu);
+		return -EIO;
+	}
+
+	secondary_thread_info = task_thread_info(idle);
+	current_pgd[cpu] = init_mm.pgd;
+
+	boot_secondary(cpu, idle);
+	if (!wait_for_completion_timeout(&cpu_running,
+					msecs_to_jiffies(1000))) {
+		pr_crit("CPU%u: failed to start\n", cpu);
+		return -EIO;
+	}
+	synchronise_count_master(cpu);
+
+	return 0;
+}
+
+asmlinkage __init void secondary_start_kernel(void)
+{
+	struct mm_struct *mm = &init_mm;
+	unsigned int cpu = smp_processor_id();
+	/*
+	 * All kernel threads share the same mm context; grab a
+	 * reference and switch to it.
+	 */
+	atomic_inc(&mm->mm_count);
+	current->active_mm = mm;
+	cpumask_set_cpu(cpu, mm_cpumask(mm));
+
+	pr_info("CPU%u: Booted secondary processor\n", cpu);
+
+	setup_cpuinfo();
+	openrisc_clockevent_init();
+
+	notify_cpu_starting(cpu);
+
+	/*
+	 * OK, now it's safe to let the boot CPU continue
+	 */
+	complete(&cpu_running);
+
+	synchronise_count_slave(cpu);
+	set_cpu_online(cpu, true);
+
+	local_irq_enable();
+
+	preempt_disable();
+	/*
+	 * OK, it's off to the idle thread for us
+	 */
+	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
+}
+
+void handle_IPI(unsigned int ipi_msg)
+{
+	unsigned int cpu = smp_processor_id();
+
+	switch (ipi_msg) {
+	case IPI_WAKEUP:
+		break;
+
+	case IPI_RESCHEDULE:
+		scheduler_ipi();
+		break;
+
+	case IPI_CALL_FUNC:
+		generic_smp_call_function_interrupt();
+		break;
+
+	case IPI_CALL_FUNC_SINGLE:
+		generic_smp_call_function_single_interrupt();
+		break;
+
+	default:
+		WARN(1, "CPU%u: Unknown IPI message 0x%x\n", cpu, ipi_msg);
+		break;
+	}
+}
+
+void smp_send_reschedule(int cpu)
+{
+	smp_cross_call(cpumask_of(cpu), IPI_RESCHEDULE);
+}
+
+static void stop_this_cpu(void *dummy)
+{
+	/* Remove this CPU */
+	set_cpu_online(smp_processor_id(), false);
+
+	local_irq_disable();
+	/* CPU Doze */
+	if (mfspr(SPR_UPR) & SPR_UPR_PMP)
+		mtspr(SPR_PMR, mfspr(SPR_PMR) | SPR_PMR_DME);
+	/* If that didn't work, infinite loop */
+	while (1)
+		;
+}
+
+void smp_send_stop(void)
+{
+	smp_call_function(stop_this_cpu, NULL, 0);
+}
+
+/* not supported, yet */
+int setup_profiling_timer(unsigned int multiplier)
+{
+	return -EINVAL;
+}
+
+void __init set_smp_cross_call(void (*fn)(const struct cpumask *, unsigned int))
+{
+	smp_cross_call = fn;
+}
+
+void arch_send_call_function_single_ipi(int cpu)
+{
+	smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
+}
+
+void arch_send_call_function_ipi_mask(const struct cpumask *mask)
+{
+	smp_cross_call(mask, IPI_CALL_FUNC);
+}
+
+/* TLB flush operations - Performed on each CPU*/
+static inline void ipi_flush_tlb_all(void *ignored)
+{
+	local_flush_tlb_all();
+}
+
+void flush_tlb_all(void)
+{
+	on_each_cpu(ipi_flush_tlb_all, NULL, 1);
+}
+
+/*
+ * FIXME: implement proper functionality instead of flush_tlb_all.
+ * *But*, as things currently stands, the local_tlb_flush_* functions will
+ * all boil down to local_tlb_flush_all anyway.
+ */
+void flush_tlb_mm(struct mm_struct *mm)
+{
+	on_each_cpu(ipi_flush_tlb_all, NULL, 1);
+}
+
+void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
+{
+	on_each_cpu(ipi_flush_tlb_all, NULL, 1);
+}
+
+void flush_tlb_range(struct vm_area_struct *vma,
+		     unsigned long start, unsigned long end)
+{
+	on_each_cpu(ipi_flush_tlb_all, NULL, 1);
+}
+
+/* Instruction cache invalidate - performed on each cpu */
+static void ipi_icache_page_inv(void *arg)
+{
+	struct page *page = arg;
+
+	local_icache_page_inv(page);
+}
+
+void smp_icache_page_inv(struct page *page)
+{
+	on_each_cpu(ipi_icache_page_inv, page, 1);
+}
+EXPORT_SYMBOL(smp_icache_page_inv);
diff --git a/arch/openrisc/kernel/stacktrace.c b/arch/openrisc/kernel/stacktrace.c
new file mode 100644
index 000000000000..43f140a28bc7
--- /dev/null
+++ b/arch/openrisc/kernel/stacktrace.c
@@ -0,0 +1,86 @@
+/*
+ * Stack trace utility for OpenRISC
+ *
+ * Copyright (C) 2017 Stafford Horne <shorne@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * Losely based on work from sh and powerpc.
+ */
+
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <linux/sched/debug.h>
+#include <linux/stacktrace.h>
+
+#include <asm/processor.h>
+#include <asm/unwinder.h>
+
+/*
+ * Save stack-backtrace addresses into a stack_trace buffer.
+ */
+static void
+save_stack_address(void *data, unsigned long addr, int reliable)
+{
+	struct stack_trace *trace = data;
+
+	if (!reliable)
+		return;
+
+	if (trace->skip > 0) {
+		trace->skip--;
+		return;
+	}
+
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = addr;
+}
+
+void save_stack_trace(struct stack_trace *trace)
+{
+	unwind_stack(trace, (unsigned long *) &trace, save_stack_address);
+}
+EXPORT_SYMBOL_GPL(save_stack_trace);
+
+static void
+save_stack_address_nosched(void *data, unsigned long addr, int reliable)
+{
+	struct stack_trace *trace = (struct stack_trace *)data;
+
+	if (!reliable)
+		return;
+
+	if (in_sched_functions(addr))
+		return;
+
+	if (trace->skip > 0) {
+		trace->skip--;
+		return;
+	}
+
+	if (trace->nr_entries < trace->max_entries)
+		trace->entries[trace->nr_entries++] = addr;
+}
+
+void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+	unsigned long *sp = NULL;
+
+	if (tsk == current)
+		sp = (unsigned long *) &sp;
+	else
+		sp = (unsigned long *) KSTK_ESP(tsk);
+
+	unwind_stack(trace, sp, save_stack_address_nosched);
+}
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
+
+void
+save_stack_trace_regs(struct pt_regs *regs, struct stack_trace *trace)
+{
+	unwind_stack(trace, (unsigned long *) regs->sp,
+		     save_stack_address_nosched);
+}
+EXPORT_SYMBOL_GPL(save_stack_trace_regs);
diff --git a/arch/openrisc/kernel/sync-timer.c b/arch/openrisc/kernel/sync-timer.c
new file mode 100644
index 000000000000..ed8d835caca1
--- /dev/null
+++ b/arch/openrisc/kernel/sync-timer.c
@@ -0,0 +1,120 @@
+/*
+ * OR1K timer synchronisation
+ *
+ * Based on work from MIPS implementation.
+ *
+ * All CPUs will have their count registers synchronised to the CPU0 next time
+ * value. This can cause a small timewarp for CPU0. All other CPU's should
+ * not have done anything significant (but they may have had interrupts
+ * enabled briefly - prom_smp_finish() should not be responsible for enabling
+ * interrupts...)
+ */
+
+#include <linux/kernel.h>
+#include <linux/irqflags.h>
+#include <linux/cpumask.h>
+
+#include <asm/time.h>
+#include <asm/timex.h>
+#include <linux/atomic.h>
+#include <asm/barrier.h>
+
+#include <asm/spr.h>
+
+static unsigned int initcount;
+static atomic_t count_count_start = ATOMIC_INIT(0);
+static atomic_t count_count_stop = ATOMIC_INIT(0);
+
+#define COUNTON 100
+#define NR_LOOPS 3
+
+void synchronise_count_master(int cpu)
+{
+	int i;
+	unsigned long flags;
+
+	pr_info("Synchronize counters for CPU %u: ", cpu);
+
+	local_irq_save(flags);
+
+	/*
+	 * We loop a few times to get a primed instruction cache,
+	 * then the last pass is more or less synchronised and
+	 * the master and slaves each set their cycle counters to a known
+	 * value all at once. This reduces the chance of having random offsets
+	 * between the processors, and guarantees that the maximum
+	 * delay between the cycle counters is never bigger than
+	 * the latency of information-passing (cachelines) between
+	 * two CPUs.
+	 */
+
+	for (i = 0; i < NR_LOOPS; i++) {
+		/* slaves loop on '!= 2' */
+		while (atomic_read(&count_count_start) != 1)
+			mb();
+		atomic_set(&count_count_stop, 0);
+		smp_wmb();
+
+		/* Let the slave writes its count register */
+		atomic_inc(&count_count_start);
+
+		/* Count will be initialised to current timer */
+		if (i == 1)
+			initcount = get_cycles();
+
+		/*
+		 * Everyone initialises count in the last loop:
+		 */
+		if (i == NR_LOOPS-1)
+			openrisc_timer_set(initcount);
+
+		/*
+		 * Wait for slave to leave the synchronization point:
+		 */
+		while (atomic_read(&count_count_stop) != 1)
+			mb();
+		atomic_set(&count_count_start, 0);
+		smp_wmb();
+		atomic_inc(&count_count_stop);
+	}
+	/* Arrange for an interrupt in a short while */
+	openrisc_timer_set_next(COUNTON);
+
+	local_irq_restore(flags);
+
+	/*
+	 * i386 code reported the skew here, but the
+	 * count registers were almost certainly out of sync
+	 * so no point in alarming people
+	 */
+	pr_cont("done.\n");
+}
+
+void synchronise_count_slave(int cpu)
+{
+	int i;
+
+	/*
+	 * Not every cpu is online at the time this gets called,
+	 * so we first wait for the master to say everyone is ready
+	 */
+
+	for (i = 0; i < NR_LOOPS; i++) {
+		atomic_inc(&count_count_start);
+		while (atomic_read(&count_count_start) != 2)
+			mb();
+
+		/*
+		 * Everyone initialises count in the last loop:
+		 */
+		if (i == NR_LOOPS-1)
+			openrisc_timer_set(initcount);
+
+		atomic_inc(&count_count_stop);
+		while (atomic_read(&count_count_stop) != 2)
+			mb();
+	}
+	/* Arrange for an interrupt in a short while */
+	openrisc_timer_set_next(COUNTON);
+}
+#undef NR_LOOPS
diff --git a/arch/openrisc/kernel/time.c b/arch/openrisc/kernel/time.c
index 687c11d048d7..6baecea27080 100644
--- a/arch/openrisc/kernel/time.c
+++ b/arch/openrisc/kernel/time.c
@@ -27,8 +27,14 @@
 
 #include <asm/cpuinfo.h>
 
-static int openrisc_timer_set_next_event(unsigned long delta,
-					 struct clock_event_device *dev)
+/* Test the timer ticks to count, used in sync routine */
+inline void openrisc_timer_set(unsigned long count)
+{
+	mtspr(SPR_TTCR, count);
+}
+
+/* Set the timer to trigger in delta cycles */
+inline void openrisc_timer_set_next(unsigned long delta)
 {
 	u32 c;
 
@@ -44,7 +50,12 @@ static int openrisc_timer_set_next_event(unsigned long delta,
 	 * Keep timer in continuous mode always.
 	 */
 	mtspr(SPR_TTMR, SPR_TTMR_CR | SPR_TTMR_IE | c);
+}
 
+static int openrisc_timer_set_next_event(unsigned long delta,
+					 struct clock_event_device *dev)
+{
+	openrisc_timer_set_next(delta);
 	return 0;
 }
 
@@ -53,13 +64,32 @@ static int openrisc_timer_set_next_event(unsigned long delta,
  * timers) we cannot enable the PERIODIC feature.  The tick timer can run using
  * one-shot events, so no problem.
  */
+DEFINE_PER_CPU(struct clock_event_device, clockevent_openrisc_timer);
 
-static struct clock_event_device clockevent_openrisc_timer = {
-	.name = "openrisc_timer_clockevent",
-	.features = CLOCK_EVT_FEAT_ONESHOT,
-	.rating = 300,
-	.set_next_event = openrisc_timer_set_next_event,
-};
+void openrisc_clockevent_init(void)
+{
+	unsigned int cpu = smp_processor_id();
+	struct clock_event_device *evt =
+		&per_cpu(clockevent_openrisc_timer, cpu);
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[cpu];
+
+	mtspr(SPR_TTMR, SPR_TTMR_CR);
+
+#ifdef CONFIG_SMP
+	evt->broadcast = tick_broadcast;
+#endif
+	evt->name = "openrisc_timer_clockevent",
+	evt->features = CLOCK_EVT_FEAT_ONESHOT,
+	evt->rating = 300,
+	evt->set_next_event = openrisc_timer_set_next_event,
+
+	evt->cpumask = cpumask_of(cpu);
+
+	/* We only have 28 bits */
+	clockevents_config_and_register(evt, cpuinfo->clock_frequency,
+					100, 0x0fffffff);
+
+}
 
 static inline void timer_ack(void)
 {
@@ -83,7 +113,9 @@ static inline void timer_ack(void)
 irqreturn_t __irq_entry timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs = set_irq_regs(regs);
-	struct clock_event_device *evt = &clockevent_openrisc_timer;
+	unsigned int cpu = smp_processor_id();
+	struct clock_event_device *evt =
+		&per_cpu(clockevent_openrisc_timer, cpu);
 
 	timer_ack();
 
@@ -99,24 +131,12 @@ irqreturn_t __irq_entry timer_interrupt(struct pt_regs *regs)
 	return IRQ_HANDLED;
 }
 
-static __init void openrisc_clockevent_init(void)
-{
-	clockevent_openrisc_timer.cpumask = cpumask_of(0);
-
-	/* We only have 28 bits */
-	clockevents_config_and_register(&clockevent_openrisc_timer,
-					cpuinfo.clock_frequency,
-					100, 0x0fffffff);
-
-}
-
 /**
  * Clocksource: Based on OpenRISC timer/counter
  *
  * This sets up the OpenRISC Tick Timer as a clock source.  The tick timer
  * is 32 bits wide and runs at the CPU clock frequency.
  */
-
 static u64 openrisc_timer_read(struct clocksource *cs)
 {
 	return (u64) mfspr(SPR_TTCR);
@@ -132,7 +152,9 @@ static struct clocksource openrisc_timer = {
 
 static int __init openrisc_timer_init(void)
 {
-	if (clocksource_register_hz(&openrisc_timer, cpuinfo.clock_frequency))
+	struct cpuinfo_or1k *cpuinfo = &cpuinfo_or1k[smp_processor_id()];
+
+	if (clocksource_register_hz(&openrisc_timer, cpuinfo->clock_frequency))
 		panic("failed to register clocksource");
 
 	/* Enable the incrementer: 'continuous' mode with interrupt disabled */
diff --git a/arch/openrisc/kernel/traps.c b/arch/openrisc/kernel/traps.c
index 803e9e756f77..4085d72fa5ae 100644
--- a/arch/openrisc/kernel/traps.c
+++ b/arch/openrisc/kernel/traps.c
@@ -38,6 +38,7 @@
 #include <asm/segment.h>
 #include <asm/io.h>
 #include <asm/pgtable.h>
+#include <asm/unwinder.h>
 
 extern char _etext, _stext;
 
@@ -45,61 +46,20 @@ int kstack_depth_to_print = 0x180;
 int lwa_flag;
 unsigned long __user *lwa_addr;
 
-static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
+void print_trace(void *data, unsigned long addr, int reliable)
 {
-	return p > (void *)tinfo && p < (void *)tinfo + THREAD_SIZE - 3;
-}
-
-void show_trace(struct task_struct *task, unsigned long *stack)
-{
-	struct thread_info *context;
-	unsigned long addr;
-
-	context = (struct thread_info *)
-	    ((unsigned long)stack & (~(THREAD_SIZE - 1)));
-
-	while (valid_stack_ptr(context, stack)) {
-		addr = *stack++;
-		if (__kernel_text_address(addr)) {
-			printk(" [<%08lx>]", addr);
-			print_symbol(" %s", addr);
-			printk("\n");
-		}
-	}
-	printk(" =======================\n");
+	pr_emerg("[<%p>] %s%pS\n", (void *) addr, reliable ? "" : "? ",
+	       (void *) addr);
 }
 
 /* displays a short stack trace */
 void show_stack(struct task_struct *task, unsigned long *esp)
 {
-	unsigned long addr, *stack;
-	int i;
-
 	if (esp == NULL)
 		esp = (unsigned long *)&esp;
 
-	stack = esp;
-
-	printk("Stack dump [0x%08lx]:\n", (unsigned long)esp);
-	for (i = 0; i < kstack_depth_to_print; i++) {
-		if (kstack_end(stack))
-			break;
-		if (__get_user(addr, stack)) {
-			/* This message matches "failing address" marked
-			   s390 in ksymoops, so lines containing it will
-			   not be filtered out by ksymoops.  */
-			printk("Failing address 0x%lx\n", (unsigned long)stack);
-			break;
-		}
-		stack++;
-
-		printk("sp + %02d: 0x%08lx\n", i * 4, addr);
-	}
-	printk("\n");
-
-	show_trace(task, esp);
-
-	return;
+	pr_emerg("Call trace:\n");
+	unwind_stack(NULL, esp, print_trace);
 }
 
 void show_trace_task(struct task_struct *tsk)
@@ -115,7 +75,7 @@ void show_registers(struct pt_regs *regs)
 	int in_kernel = 1;
 	unsigned long esp;
 
-	esp = (unsigned long)(&regs->sp);
+	esp = (unsigned long)(regs->sp);
 	if (user_mode(regs))
 		in_kernel = 0;
 
diff --git a/arch/openrisc/kernel/unwinder.c b/arch/openrisc/kernel/unwinder.c
new file mode 100644
index 000000000000..8ae15c2c1845
--- /dev/null
+++ b/arch/openrisc/kernel/unwinder.c
@@ -0,0 +1,105 @@
+/*
+ * OpenRISC unwinder.c
+ *
+ * Reusable arch specific api for unwinding stacks.
+ *
+ * Copyright (C) 2017 Stafford Horne <shorne@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/sched/task_stack.h>
+#include <linux/kernel.h>
+
+#include <asm/unwinder.h>
+
+#ifdef CONFIG_FRAME_POINTER
+struct or1k_frameinfo {
+	unsigned long *fp;
+	unsigned long ra;
+	unsigned long top;
+};
+
+/*
+ * Verify a frameinfo structure.  The return address should be a valid text
+ * address.  The frame pointer may be null if its the last frame, otherwise
+ * the frame pointer should point to a location in the stack after the the
+ * top of the next frame up.
+ */
+static inline int or1k_frameinfo_valid(struct or1k_frameinfo *frameinfo)
+{
+	return (frameinfo->fp == NULL ||
+		(!kstack_end(frameinfo->fp) &&
+		 frameinfo->fp > &frameinfo->top)) &&
+	       __kernel_text_address(frameinfo->ra);
+}
+
+/*
+ * Create a stack trace doing scanning which is frame pointer aware. We can
+ * get reliable stack traces by matching the previously found frame
+ * pointer with the top of the stack address every time we find a valid
+ * or1k_frameinfo.
+ *
+ * Ideally the stack parameter will be passed as FP, but it can not be
+ * guaranteed.  Therefore we scan each address looking for the first sign
+ * of a return address.
+ *
+ * The OpenRISC stack frame looks something like the following.  The
+ * location SP is held in r1 and location FP is held in r2 when frame pointers
+ * enabled.
+ *
+ * SP   -> (top of stack)
+ *      -  (callee saved registers)
+ *      -  (local variables)
+ * FP-8 -> previous FP             \
+ * FP-4 -> return address          |- or1k_frameinfo
+ * FP   -> (previous top of stack) /
+ */
+void unwind_stack(void *data, unsigned long *stack,
+		  void (*trace)(void *data, unsigned long addr, int reliable))
+{
+	unsigned long *next_fp = NULL;
+	struct or1k_frameinfo *frameinfo = NULL;
+	int reliable = 0;
+
+	while (!kstack_end(stack)) {
+		frameinfo = container_of(stack,
+					 struct or1k_frameinfo,
+					 top);
+
+		if (__kernel_text_address(frameinfo->ra)) {
+			if (or1k_frameinfo_valid(frameinfo) &&
+			    (next_fp == NULL ||
+			     next_fp == &frameinfo->top)) {
+				reliable = 1;
+				next_fp = frameinfo->fp;
+			} else
+				reliable = 0;
+
+			trace(data, frameinfo->ra, reliable);
+		}
+		stack++;
+	}
+}
+
+#else /* CONFIG_FRAME_POINTER */
+
+/*
+ * Create a stack trace by doing a simple scan treating all text addresses
+ * as return addresses.
+ */
+void unwind_stack(void *data, unsigned long *stack,
+		   void (*trace)(void *data, unsigned long addr, int reliable))
+{
+	unsigned long addr;
+
+	while (!kstack_end(stack)) {
+		addr = *stack++;
+		if (__kernel_text_address(addr))
+			trace(data, addr, 0);
+	}
+}
+#endif /* CONFIG_FRAME_POINTER */
+
diff --git a/arch/openrisc/kernel/vmlinux.h b/arch/openrisc/kernel/vmlinux.h
index bbcdf21b0b35..bdea46c617c7 100644
--- a/arch/openrisc/kernel/vmlinux.h
+++ b/arch/openrisc/kernel/vmlinux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OPENRISC_VMLINUX_H_
 #define __OPENRISC_VMLINUX_H_
 
diff --git a/arch/openrisc/lib/delay.c b/arch/openrisc/lib/delay.c
index 8b13fdf43ec6..a92bd621aa1f 100644
--- a/arch/openrisc/lib/delay.c
+++ b/arch/openrisc/lib/delay.c
@@ -25,7 +25,7 @@
 
 int read_current_timer(unsigned long *timer_value)
 {
-	*timer_value = mfspr(SPR_TTCR);
+	*timer_value = get_cycles();
 	return 0;
 }
 
diff --git a/arch/openrisc/lib/memcpy.c b/arch/openrisc/lib/memcpy.c
index 669887a60e27..fe2177628fd9 100644
--- a/arch/openrisc/lib/memcpy.c
+++ b/arch/openrisc/lib/memcpy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/openrisc/lib/memcpy.c
  *
diff --git a/arch/openrisc/mm/Makefile b/arch/openrisc/mm/Makefile
index 324ba2634529..a31b2a42e966 100644
--- a/arch/openrisc/mm/Makefile
+++ b/arch/openrisc/mm/Makefile
@@ -2,4 +2,4 @@
 # Makefile for the linux openrisc-specific parts of the memory manager.
 #
 
-obj-y	:= fault.o tlb.o init.o ioremap.o
+obj-y	:= fault.o cache.o tlb.o init.o ioremap.o
diff --git a/arch/openrisc/mm/cache.c b/arch/openrisc/mm/cache.c
new file mode 100644
index 000000000000..b747bf1fc1b6
--- /dev/null
+++ b/arch/openrisc/mm/cache.c
@@ -0,0 +1,61 @@
+/*
+ * OpenRISC cache.c
+ *
+ * Linux architectural port borrowing liberally from similar works of
+ * others.  All original copyrights apply as per the original source
+ * declaration.
+ *
+ * Modifications for the OpenRISC architecture:
+ * Copyright (C) 2015 Jan Henrik Weinstock <jan.weinstock@rwth-aachen.de>
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <asm/spr.h>
+#include <asm/spr_defs.h>
+#include <asm/cache.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+
+static void cache_loop(struct page *page, const unsigned int reg)
+{
+	unsigned long paddr = page_to_pfn(page) << PAGE_SHIFT;
+	unsigned long line = paddr & ~(L1_CACHE_BYTES - 1);
+
+	while (line < paddr + PAGE_SIZE) {
+		mtspr(reg, line);
+		line += L1_CACHE_BYTES;
+	}
+}
+
+void local_dcache_page_flush(struct page *page)
+{
+	cache_loop(page, SPR_DCBFR);
+}
+EXPORT_SYMBOL(local_dcache_page_flush);
+
+void local_icache_page_inv(struct page *page)
+{
+	cache_loop(page, SPR_ICBIR);
+}
+EXPORT_SYMBOL(local_icache_page_inv);
+
+void update_cache(struct vm_area_struct *vma, unsigned long address,
+	pte_t *pte)
+{
+	unsigned long pfn = pte_val(*pte) >> PAGE_SHIFT;
+	struct page *page = pfn_to_page(pfn);
+	int dirty = !test_and_set_bit(PG_dc_clean, &page->flags);
+
+	/*
+	 * Since icaches do not snoop for updated data on OpenRISC, we
+	 * must write back and invalidate any dirty pages manually. We
+	 * can skip data pages, since they will not end up in icaches.
+	 */
+	if ((vma->vm_flags & VM_EXEC) && dirty)
+		sync_icache_dcache(page);
+}
+
diff --git a/arch/openrisc/mm/fault.c b/arch/openrisc/mm/fault.c
index e310ab499385..d0021dfae20a 100644
--- a/arch/openrisc/mm/fault.c
+++ b/arch/openrisc/mm/fault.c
@@ -33,7 +33,7 @@ unsigned long pte_errors;	/* updated by do_page_fault() */
 /* __PHX__ :: - check the vmalloc_fault in do_page_fault()
  *            - also look into include/asm-or32/mmu_context.h
  */
-volatile pgd_t *current_pgd;
+volatile pgd_t *current_pgd[NR_CPUS];
 
 extern void die(char *, struct pt_regs *, long);
 
@@ -319,7 +319,7 @@ vmalloc_fault:
 
 		phx_mmu("vmalloc_fault");
 */
-		pgd = (pgd_t *)current_pgd + offset;
+		pgd = (pgd_t *)current_pgd[smp_processor_id()] + offset;
 		pgd_k = init_mm.pgd + offset;
 
 		/* Since we're two-level, we don't need to do both
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index f67d82b9d22f..6972d5d6f23f 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -147,7 +147,7 @@ void __init paging_init(void)
 	 * (even if it is most probably not used until the next
 	 *  switch_mm)
 	 */
-	current_pgd = init_mm.pgd;
+	current_pgd[smp_processor_id()] = init_mm.pgd;
 
 	end = (unsigned long)__va(max_low_pfn * PAGE_SIZE);
 
diff --git a/arch/openrisc/mm/tlb.c b/arch/openrisc/mm/tlb.c
index 683bd4d31c7c..6c253a2e86bc 100644
--- a/arch/openrisc/mm/tlb.c
+++ b/arch/openrisc/mm/tlb.c
@@ -49,7 +49,7 @@
  *
  */
 
-void flush_tlb_all(void)
+void local_flush_tlb_all(void)
 {
 	int i;
 	unsigned long num_tlb_sets;
@@ -86,7 +86,7 @@ void flush_tlb_all(void)
 #define flush_itlb_page_no_eir(addr) \
 	mtspr_off(SPR_ITLBMR_BASE(0), ITLB_OFFSET(addr), 0);
 
-void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
+void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
 {
 	if (have_dtlbeir)
 		flush_dtlb_page_eir(addr);
@@ -99,8 +99,8 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
 		flush_itlb_page_no_eir(addr);
 }
 
-void flush_tlb_range(struct vm_area_struct *vma,
-		     unsigned long start, unsigned long end)
+void local_flush_tlb_range(struct vm_area_struct *vma,
+			   unsigned long start, unsigned long end)
 {
 	int addr;
 	bool dtlbeir;
@@ -129,13 +129,13 @@ void flush_tlb_range(struct vm_area_struct *vma,
  * This should be changed to loop over over mm and call flush_tlb_range.
  */
 
-void flush_tlb_mm(struct mm_struct *mm)
+void local_flush_tlb_mm(struct mm_struct *mm)
 {
 
 	/* Was seeing bugs with the mm struct passed to us. Scrapped most of
 	   this function. */
 	/* Several architctures do this */
-	flush_tlb_all();
+	local_flush_tlb_all();
 }
 
 /* called in schedule() just before actually doing the switch_to */
@@ -149,14 +149,14 @@ void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	 * might be invalid at points where we still need to derefer
 	 * the pgd.
 	 */
-	current_pgd = next->pgd;
+	current_pgd[smp_processor_id()] = next->pgd;
 
 	/* We don't have context support implemented, so flush all
 	 * entries belonging to previous map
 	 */
 
 	if (prev != next)
-		flush_tlb_mm(prev);
+		local_flush_tlb_mm(prev);
 
 }
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ba7b7ddc3844..1fd3eb5b66c6 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PARISC
 	def_bool y
 	select ARCH_MIGHT_HAVE_PC_PARPORT
@@ -257,6 +258,18 @@ config PARISC_PAGE_SIZE_64KB
 
 endchoice
 
+config PARISC_SELF_EXTRACT
+	bool "Build kernel as self-extracting executable"
+	default y
+	help
+	  Say Y if you want to build the parisc kernel as a kind of
+	  self-extracting executable.
+
+	  If you say N here, the kernel will be compressed with gzip
+	  which can be loaded by the palo bootloader directly too.
+
+	  If you don't know what to do here, say Y.
+
 config SMP
 	bool "Symmetric multi-processing support"
 	---help---
diff --git a/arch/parisc/Kconfig.debug b/arch/parisc/Kconfig.debug
index 0d856b94c9b1..fb3507f9b14a 100644
--- a/arch/parisc/Kconfig.debug
+++ b/arch/parisc/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 58fae5d2449d..01946ebaff72 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -129,8 +129,13 @@ Image: vmlinux
 bzImage: vmlinux
 	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
 
+ifdef CONFIG_PARISC_SELF_EXTRACT
 vmlinuz: bzImage
 	$(OBJCOPY) $(boot)/bzImage $@
+else
+vmlinuz: vmlinux
+	@gzip -cf -9 $< > $@
+endif
 
 install:
 	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
index 5450a11c9d10..7d7e594bda36 100644
--- a/arch/parisc/boot/compressed/Makefile
+++ b/arch/parisc/boot/compressed/Makefile
@@ -15,7 +15,7 @@ targets += misc.o piggy.o sizes.h head.o real2.o firmware.o
 KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
 KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks
-KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs
+KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
 ifndef CONFIG_64BIT
 KBUILD_CFLAGS += -mfast-indirect-calls
 endif
diff --git a/arch/parisc/boot/compressed/misc.c b/arch/parisc/boot/compressed/misc.c
index 13a4bf9ac4da..9345b44b86f0 100644
--- a/arch/parisc/boot/compressed/misc.c
+++ b/arch/parisc/boot/compressed/misc.c
@@ -24,7 +24,8 @@
 /* Symbols defined by linker scripts */
 extern char input_data[];
 extern int input_len;
-extern __le32 output_len;	/* at unaligned address, little-endian */
+/* output_len is inserted by the linker possibly at an unaligned address */
+extern __le32 output_len __aligned(1);
 extern char _text, _end;
 extern char _bss, _ebss;
 extern char _startcode_end;
diff --git a/arch/parisc/include/asm/agp.h b/arch/parisc/include/asm/agp.h
index d226ffa8fc12..cb04470e63d0 100644
--- a/arch/parisc/include/asm/agp.h
+++ b/arch/parisc/include/asm/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_AGP_H
 #define _ASM_PARISC_AGP_H
 
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 17b98a87e5e2..88bae6676c9b 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
  * Copyright (C) 2006 Kyle McMartin <kyle@parisc-linux.org>
  */
@@ -260,7 +261,7 @@ atomic64_set(atomic64_t *v, s64 i)
 static __inline__ s64
 atomic64_read(const atomic64_t *v)
 {
-	return ACCESS_ONCE((v)->counter);
+	return READ_ONCE((v)->counter);
 }
 
 #define atomic64_inc(v)		(atomic64_add(   1,(v)))
diff --git a/arch/parisc/include/asm/bitops.h b/arch/parisc/include/asm/bitops.h
index da87943328a5..53252d4f9a57 100644
--- a/arch/parisc/include/asm/bitops.h
+++ b/arch/parisc/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_BITOPS_H
 #define _PARISC_BITOPS_H
 
diff --git a/arch/parisc/include/asm/bug.h b/arch/parisc/include/asm/bug.h
index 07ea467f22fc..4b6d60b94124 100644
--- a/arch/parisc/include/asm/bug.h
+++ b/arch/parisc/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_BUG_H
 #define _PARISC_BUG_H
 
diff --git a/arch/parisc/include/asm/bugs.h b/arch/parisc/include/asm/bugs.h
index 9e6284342a5f..0a7f9db6bd1c 100644
--- a/arch/parisc/include/asm/bugs.h
+++ b/arch/parisc/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/asm-parisc/bugs.h
  *
diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index df0f52bd18b4..150b7f30ea90 100644
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-parisc/cache.h
  */
diff --git a/arch/parisc/include/asm/cacheflush.h b/arch/parisc/include/asm/cacheflush.h
index c7e15cc5c668..3742508cc534 100644
--- a/arch/parisc/include/asm/cacheflush.h
+++ b/arch/parisc/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_CACHEFLUSH_H
 #define _PARISC_CACHEFLUSH_H
 
diff --git a/arch/parisc/include/asm/checksum.h b/arch/parisc/include/asm/checksum.h
index 60c2c42619c9..3cbf1f1c1188 100644
--- a/arch/parisc/include/asm/checksum.h
+++ b/arch/parisc/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_CHECKSUM_H
 #define _PARISC_CHECKSUM_H
 
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index 7ada30900807..f627c37dad9c 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * forked from parisc asm/atomic.h which was:
  *	Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 3387307cc33e..07f48827afda 100644
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_COMPAT_H
 #define _ASM_PARISC_COMPAT_H
 /*
diff --git a/arch/parisc/include/asm/compat_ucontext.h b/arch/parisc/include/asm/compat_ucontext.h
index 2f7292afde3c..c606f1bc891d 100644
--- a/arch/parisc/include/asm/compat_ucontext.h
+++ b/arch/parisc/include/asm/compat_ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_COMPAT_UCONTEXT_H
 #define _ASM_PARISC_COMPAT_UCONTEXT_H
 
diff --git a/arch/parisc/include/asm/delay.h b/arch/parisc/include/asm/delay.h
index 08e58e679e3e..841b506b702a 100644
--- a/arch/parisc/include/asm/delay.h
+++ b/arch/parisc/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_DELAY_H
 #define _ASM_PARISC_DELAY_H
 
diff --git a/arch/parisc/include/asm/dma-mapping.h b/arch/parisc/include/asm/dma-mapping.h
index 2b16282add69..7af4a00b5ce2 100644
--- a/arch/parisc/include/asm/dma-mapping.h
+++ b/arch/parisc/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_DMA_MAPPING_H
 #define _PARISC_DMA_MAPPING_H
 
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index fd48ae2de950..eea80ed34e6d 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
  * High DMA channel support & info by Hannu Savolainen
diff --git a/arch/parisc/include/asm/elf.h b/arch/parisc/include/asm/elf.h
index a6b2a421571e..382d75a2ee4f 100644
--- a/arch/parisc/include/asm/elf.h
+++ b/arch/parisc/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMPARISC_ELF_H
 #define __ASMPARISC_ELF_H
 
diff --git a/arch/parisc/include/asm/fb.h b/arch/parisc/include/asm/fb.h
index 4d503a023ab2..c4cd6360f996 100644
--- a/arch/parisc/include/asm/fb.h
+++ b/arch/parisc/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/parisc/include/asm/fixmap.h b/arch/parisc/include/asm/fixmap.h
index 6fec4d4a1a18..f7c3a0905de4 100644
--- a/arch/parisc/include/asm/fixmap.h
+++ b/arch/parisc/include/asm/fixmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FIXMAP_H
 #define _ASM_FIXMAP_H
 
diff --git a/arch/parisc/include/asm/ftrace.h b/arch/parisc/include/asm/ftrace.h
index d635c6b0269d..42b2c75a1645 100644
--- a/arch/parisc/include/asm/ftrace.h
+++ b/arch/parisc/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_FTRACE_H
 #define _ASM_PARISC_FTRACE_H
 
diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h
index c601aab2fb36..cf7ba058f619 100644
--- a/arch/parisc/include/asm/futex.h
+++ b/arch/parisc/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_FUTEX_H
 #define _ASM_PARISC_FUTEX_H
 
diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 9b3bd039a609..077815169258 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* hardirq.h: PA-RISC hard IRQ support.
  *
  * Copyright (C) 2001 Matthew Wilcox <matthew@wil.cx>
diff --git a/arch/parisc/include/asm/hardware.h b/arch/parisc/include/asm/hardware.h
index d1d864b81bae..d6e1ed145031 100644
--- a/arch/parisc/include/asm/hardware.h
+++ b/arch/parisc/include/asm/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_HARDWARE_H
 #define _PARISC_HARDWARE_H
 
diff --git a/arch/parisc/include/asm/hash.h b/arch/parisc/include/asm/hash.h
index dbe93311aa26..525950ed862d 100644
--- a/arch/parisc/include/asm/hash.h
+++ b/arch/parisc/include/asm/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_HASH_H
 #define _ASM_HASH_H
 
diff --git a/arch/parisc/include/asm/hugetlb.h b/arch/parisc/include/asm/hugetlb.h
index a65d888716c4..58e0f4620426 100644
--- a/arch/parisc/include/asm/hugetlb.h
+++ b/arch/parisc/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC64_HUGETLB_H
 #define _ASM_PARISC64_HUGETLB_H
 
diff --git a/arch/parisc/include/asm/ide.h b/arch/parisc/include/asm/ide.h
index 81700a2321cf..34cdac01ed35 100644
--- a/arch/parisc/include/asm/ide.h
+++ b/arch/parisc/include/asm/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/asm-parisc/ide.h
  *
diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index af98254f7257..27c62baa9c4e 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IO_H
 #define _ASM_IO_H
 
diff --git a/arch/parisc/include/asm/irq.h b/arch/parisc/include/asm/irq.h
index 1073599a7be9..959e79cd2c14 100644
--- a/arch/parisc/include/asm/irq.h
+++ b/arch/parisc/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-parisc/irq.h
  *
diff --git a/arch/parisc/include/asm/irqflags.h b/arch/parisc/include/asm/irqflags.h
index 34f9cb9b4754..38a19c0bac3a 100644
--- a/arch/parisc/include/asm/irqflags.h
+++ b/arch/parisc/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PARISC_IRQFLAGS_H
 #define __PARISC_IRQFLAGS_H
 
diff --git a/arch/parisc/include/asm/kbdleds.h b/arch/parisc/include/asm/kbdleds.h
index 2e2e75a83c28..50fcce810655 100644
--- a/arch/parisc/include/asm/kbdleds.h
+++ b/arch/parisc/include/asm/kbdleds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_KBDLEDS_H
 #define _ASM_PARISC_KBDLEDS_H
 
diff --git a/arch/parisc/include/asm/kmap_types.h b/arch/parisc/include/asm/kmap_types.h
index 58e91ed0388f..3e70b5cd1123 100644
--- a/arch/parisc/include/asm/kmap_types.h
+++ b/arch/parisc/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
diff --git a/arch/parisc/include/asm/ldcw.h b/arch/parisc/include/asm/ldcw.h
index 8be707e1b6c7..dd5a08aaa4da 100644
--- a/arch/parisc/include/asm/ldcw.h
+++ b/arch/parisc/include/asm/ldcw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PARISC_LDCW_H
 #define __PARISC_LDCW_H
 
diff --git a/arch/parisc/include/asm/led.h b/arch/parisc/include/asm/led.h
index c3405ab9d60a..6de13d08a388 100644
--- a/arch/parisc/include/asm/led.h
+++ b/arch/parisc/include/asm/led.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LED_H
 #define LED_H
 
diff --git a/arch/parisc/include/asm/linkage.h b/arch/parisc/include/asm/linkage.h
index 67e6b433d399..9a69bf6fc4b6 100644
--- a/arch/parisc/include/asm/linkage.h
+++ b/arch/parisc/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PARISC_LINKAGE_H
 #define __ASM_PARISC_LINKAGE_H
 
diff --git a/arch/parisc/include/asm/machdep.h b/arch/parisc/include/asm/machdep.h
index a231c97d703e..215d2c43989d 100644
--- a/arch/parisc/include/asm/machdep.h
+++ b/arch/parisc/include/asm/machdep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_MACHDEP_H
 #define _PARISC_MACHDEP_H
 
diff --git a/arch/parisc/include/asm/mckinley.h b/arch/parisc/include/asm/mckinley.h
index d1ea6f12915e..eb84dbeb7fd9 100644
--- a/arch/parisc/include/asm/mckinley.h
+++ b/arch/parisc/include/asm/mckinley.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_PARISC_MCKINLEY_H
 #define ASM_PARISC_MCKINLEY_H
 #ifdef __KERNEL__
diff --git a/arch/parisc/include/asm/mmu.h b/arch/parisc/include/asm/mmu.h
index 6a310cf8b734..3fb70a601d5c 100644
--- a/arch/parisc/include/asm/mmu.h
+++ b/arch/parisc/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_MMU_H_
 #define _PARISC_MMU_H_
 
diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index e4a657094058..697a906ab1b0 100644
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PARISC_MMU_CONTEXT_H
 #define __PARISC_MMU_CONTEXT_H
 
diff --git a/arch/parisc/include/asm/mmzone.h b/arch/parisc/include/asm/mmzone.h
index b6b34a0987e7..fafa3893fd70 100644
--- a/arch/parisc/include/asm/mmzone.h
+++ b/arch/parisc/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_MMZONE_H
 #define _PARISC_MMZONE_H
 
diff --git a/arch/parisc/include/asm/module.h b/arch/parisc/include/asm/module.h
index bab37e99168a..c8c131a74919 100644
--- a/arch/parisc/include/asm/module.h
+++ b/arch/parisc/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_MODULE_H
 #define _ASM_PARISC_MODULE_H
 
diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
index bfed09d80bae..af00fe9bf846 100644
--- a/arch/parisc/include/asm/page.h
+++ b/arch/parisc/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_PAGE_H
 #define _PARISC_PAGE_H
 
diff --git a/arch/parisc/include/asm/parisc-device.h b/arch/parisc/include/asm/parisc-device.h
index eaf4dc1c7294..d02d144c6012 100644
--- a/arch/parisc/include/asm/parisc-device.h
+++ b/arch/parisc/include/asm/parisc-device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_PARISC_DEVICE_H_
 #define _ASM_PARISC_PARISC_DEVICE_H_
 
diff --git a/arch/parisc/include/asm/parport.h b/arch/parisc/include/asm/parport.h
index c391d7cbc223..2c8e2321c24d 100644
--- a/arch/parisc/include/asm/parport.h
+++ b/arch/parisc/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  *
  * parport.h: ia32-compatible parport initialisation
diff --git a/arch/parisc/include/asm/pci.h b/arch/parisc/include/asm/pci.h
index 1de1a3f412ec..6108e9df0296 100644
--- a/arch/parisc/include/asm/pci.h
+++ b/arch/parisc/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PARISC_PCI_H
 #define __ASM_PARISC_PCI_H
 
diff --git a/arch/parisc/include/asm/pdc.h b/arch/parisc/include/asm/pdc.h
index 26b4455baa83..efee44a5e063 100644
--- a/arch/parisc/include/asm/pdc.h
+++ b/arch/parisc/include/asm/pdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_PDC_H
 #define _PARISC_PDC_H
 
@@ -280,6 +281,7 @@ void setup_pdc(void);		/* in inventory.c */
 /* wrapper-functions from pdc.c */
 
 int pdc_add_valid(unsigned long address);
+int pdc_instr(unsigned int *instr);
 int pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_info, unsigned long len);
 int pdc_chassis_disp(unsigned long disp);
 int pdc_chassis_warn(unsigned long *warn);
diff --git a/arch/parisc/include/asm/perf.h b/arch/parisc/include/asm/perf.h
index a18e11972c09..2a5a60affe70 100644
--- a/arch/parisc/include/asm/perf.h
+++ b/arch/parisc/include/asm/perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PERF_H_
 #define _ASM_PERF_H_
 
diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index f08dda3f0995..cf13275f7c6d 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PGALLOC_H
 #define _ASM_PGALLOC_H
 
diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index 71ca86cb0f16..fa6b7c78f18a 100644
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_PGTABLE_H
 #define _PARISC_PGTABLE_H
 
diff --git a/arch/parisc/include/asm/prefetch.h b/arch/parisc/include/asm/prefetch.h
index 1ee7c82672c1..6e63f720024d 100644
--- a/arch/parisc/include/asm/prefetch.h
+++ b/arch/parisc/include/asm/prefetch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-parisc/prefetch.h
  *
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index b3b66c3d6f3c..0e6ab6e4a4e9 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-parisc/processor.h
  *
diff --git a/arch/parisc/include/asm/psw.h b/arch/parisc/include/asm/psw.h
index ad69a35e9c0f..76c301146c31 100644
--- a/arch/parisc/include/asm/psw.h
+++ b/arch/parisc/include/asm/psw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_PSW_H
 
 
diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index 3c3cb004b7e2..46da07670c2b 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg
 ** Copyright (C) 2000 Grant Grundler, Hewlett-Packard
 */
diff --git a/arch/parisc/include/asm/ropes.h b/arch/parisc/include/asm/ropes.h
index 09f51d5ab57c..8e51c775c80a 100644
--- a/arch/parisc/include/asm/ropes.h
+++ b/arch/parisc/include/asm/ropes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_ROPES_H_
 #define _ASM_PARISC_ROPES_H_
 
diff --git a/arch/parisc/include/asm/rt_sigframe.h b/arch/parisc/include/asm/rt_sigframe.h
index f0dd3b30f6c4..2b3010ade00e 100644
--- a/arch/parisc/include/asm/rt_sigframe.h
+++ b/arch/parisc/include/asm/rt_sigframe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_RT_SIGFRAME_H
 #define _ASM_PARISC_RT_SIGFRAME_H
 
diff --git a/arch/parisc/include/asm/runway.h b/arch/parisc/include/asm/runway.h
index 5bea02da7e22..f3cfe69439f6 100644
--- a/arch/parisc/include/asm/runway.h
+++ b/arch/parisc/include/asm/runway.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_PARISC_RUNWAY_H
 #define ASM_PARISC_RUNWAY_H
 #ifdef __KERNEL__
diff --git a/arch/parisc/include/asm/sections.h b/arch/parisc/include/asm/sections.h
index 9d13c3507ad6..accdf40aa5b7 100644
--- a/arch/parisc/include/asm/sections.h
+++ b/arch/parisc/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_SECTIONS_H
 #define _PARISC_SECTIONS_H
 
diff --git a/arch/parisc/include/asm/shmparam.h b/arch/parisc/include/asm/shmparam.h
index afe1300ab667..74f74e4d35b7 100644
--- a/arch/parisc/include/asm/shmparam.h
+++ b/arch/parisc/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMPARISC_SHMPARAM_H
 #define _ASMPARISC_SHMPARAM_H
 
diff --git a/arch/parisc/include/asm/signal.h b/arch/parisc/include/asm/signal.h
index 81a545773971..eeb5c8858663 100644
--- a/arch/parisc/include/asm/signal.h
+++ b/arch/parisc/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_SIGNAL_H
 #define _ASM_PARISC_SIGNAL_H
 
diff --git a/arch/parisc/include/asm/smp.h b/arch/parisc/include/asm/smp.h
index a5dc9066c6d8..b9a18db4b05a 100644
--- a/arch/parisc/include/asm/smp.h
+++ b/arch/parisc/include/asm/smp.h
@@ -1,6 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
+extern int init_per_cpu(int cpuid);
 
 #if defined(CONFIG_SMP)
 
diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
index 748016cb122d..79feff1b0721 100644
--- a/arch/parisc/include/asm/socket.h
+++ b/arch/parisc/include/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SOCKET_H
 #define _ASM_SOCKET_H
 
diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
index e1509308899f..3d4dd68e181b 100644
--- a/arch/parisc/include/asm/special_insns.h
+++ b/arch/parisc/include/asm/special_insns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PARISC_SPECIAL_INSNS_H
 #define __PARISC_SPECIAL_INSNS_H
 
diff --git a/arch/parisc/include/asm/spinlock.h b/arch/parisc/include/asm/spinlock.h
index 55bfe4affca3..6f84b6acc86e 100644
--- a/arch/parisc/include/asm/spinlock.h
+++ b/arch/parisc/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_H
 #define __ASM_SPINLOCK_H
 
@@ -31,6 +32,7 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *x,
 				cpu_relax();
 	mb();
 }
+#define arch_spin_lock_flags arch_spin_lock_flags
 
 static inline void arch_spin_unlock(arch_spinlock_t *x)
 {
@@ -168,25 +170,4 @@ static __inline__ int arch_write_trylock(arch_rwlock_t *rw)
 	return result;
 }
 
-/*
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-static __inline__ int arch_read_can_lock(arch_rwlock_t *rw)
-{
-	return rw->counter >= 0;
-}
-
-/*
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-static __inline__ int arch_write_can_lock(arch_rwlock_t *rw)
-{
-	return !rw->counter;
-}
-
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/parisc/include/asm/spinlock_types.h b/arch/parisc/include/asm/spinlock_types.h
index 8c373aa28a86..42979c5704dc 100644
--- a/arch/parisc/include/asm/spinlock_types.h
+++ b/arch/parisc/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_TYPES_H
 #define __ASM_SPINLOCK_TYPES_H
 
diff --git a/arch/parisc/include/asm/string.h b/arch/parisc/include/asm/string.h
index eda01be65e35..f6e1132f4e35 100644
--- a/arch/parisc/include/asm/string.h
+++ b/arch/parisc/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PA_STRING_H_
 #define _PA_STRING_H_
 
diff --git a/arch/parisc/include/asm/superio.h b/arch/parisc/include/asm/superio.h
index 6598acb4d46d..5e11c11d4395 100644
--- a/arch/parisc/include/asm/superio.h
+++ b/arch/parisc/include/asm/superio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_SUPERIO_H
 #define _PARISC_SUPERIO_H
 
diff --git a/arch/parisc/include/asm/switch_to.h b/arch/parisc/include/asm/switch_to.h
index 8ed8fea1e784..f2ac9cc0de60 100644
--- a/arch/parisc/include/asm/switch_to.h
+++ b/arch/parisc/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PARISC_SWITCH_TO_H
 #define __PARISC_SWITCH_TO_H
 
diff --git a/arch/parisc/include/asm/syscall.h b/arch/parisc/include/asm/syscall.h
index 5e0b4e6bd99d..8bff1a58c97f 100644
--- a/arch/parisc/include/asm/syscall.h
+++ b/arch/parisc/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* syscall.h */
 
 #ifndef _ASM_PARISC_SYSCALL_H_
diff --git a/arch/parisc/include/asm/termios.h b/arch/parisc/include/asm/termios.h
index 9bbc0c8974ea..cded9dc90c1b 100644
--- a/arch/parisc/include/asm/termios.h
+++ b/arch/parisc/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_TERMIOS_H
 #define _PARISC_TERMIOS_H
 
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index bc208136bbb2..c980a02a52bc 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_THREAD_INFO_H
 #define _ASM_PARISC_THREAD_INFO_H
 
diff --git a/arch/parisc/include/asm/timex.h b/arch/parisc/include/asm/timex.h
index 2bd51f6d832b..45537cd4d1d3 100644
--- a/arch/parisc/include/asm/timex.h
+++ b/arch/parisc/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-parisc/timex.h
  *
diff --git a/arch/parisc/include/asm/tlb.h b/arch/parisc/include/asm/tlb.h
index 07924903989e..0c881e74d8a6 100644
--- a/arch/parisc/include/asm/tlb.h
+++ b/arch/parisc/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_TLB_H
 #define _PARISC_TLB_H
 
diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index e84b96478193..14668bd52d60 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PARISC_TLBFLUSH_H
 #define _PARISC_TLBFLUSH_H
 
diff --git a/arch/parisc/include/asm/traps.h b/arch/parisc/include/asm/traps.h
index 63670231f48a..e00013248907 100644
--- a/arch/parisc/include/asm/traps.h
+++ b/arch/parisc/include/asm/traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_TRAPS_H
 #define __ASM_TRAPS_H
 
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index cab33a0d0e82..ea70e36ce6af 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PARISC_UACCESS_H
 #define __PARISC_UACCESS_H
 
diff --git a/arch/parisc/include/asm/ucontext.h b/arch/parisc/include/asm/ucontext.h
index 6c8883e4b0bd..ac7f863864c5 100644
--- a/arch/parisc/include/asm/ucontext.h
+++ b/arch/parisc/include/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_UCONTEXT_H
 #define _ASM_PARISC_UCONTEXT_H
 
diff --git a/arch/parisc/include/asm/unaligned.h b/arch/parisc/include/asm/unaligned.h
index dfc5d3321a54..e9029c7c2a69 100644
--- a/arch/parisc/include/asm/unaligned.h
+++ b/arch/parisc/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_UNALIGNED_H
 #define _ASM_PARISC_UNALIGNED_H
 
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index 7dc31c84dd37..3d507d04eb4c 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_PARISC_UNISTD_H_
 #define _ASM_PARISC_UNISTD_H_
 
diff --git a/arch/parisc/include/asm/unwind.h b/arch/parisc/include/asm/unwind.h
index 52482e4fc20d..c73a3ee20226 100644
--- a/arch/parisc/include/asm/unwind.h
+++ b/arch/parisc/include/asm/unwind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UNWIND_H_
 #define _UNWIND_H_
 
diff --git a/arch/parisc/include/uapi/asm/bitsperlong.h b/arch/parisc/include/uapi/asm/bitsperlong.h
index 07fa7e50bdc0..307e2ef1c62d 100644
--- a/arch/parisc/include/uapi/asm/bitsperlong.h
+++ b/arch/parisc/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_PARISC_BITSPERLONG_H
 #define __ASM_PARISC_BITSPERLONG_H
 
diff --git a/arch/parisc/include/uapi/asm/byteorder.h b/arch/parisc/include/uapi/asm/byteorder.h
index 58af2c5f5d61..a59d9b7e35a8 100644
--- a/arch/parisc/include/uapi/asm/byteorder.h
+++ b/arch/parisc/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_BYTEORDER_H
 #define _PARISC_BYTEORDER_H
 
diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h
index 274d5bc6ecce..fc0df353ff0d 100644
--- a/arch/parisc/include/uapi/asm/errno.h
+++ b/arch/parisc/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_ERRNO_H
 #define _PARISC_ERRNO_H
 
diff --git a/arch/parisc/include/uapi/asm/fcntl.h b/arch/parisc/include/uapi/asm/fcntl.h
index 34a46cbc76ed..03ce20e5ad7d 100644
--- a/arch/parisc/include/uapi/asm/fcntl.h
+++ b/arch/parisc/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_FCNTL_H
 #define _PARISC_FCNTL_H
 
diff --git a/arch/parisc/include/uapi/asm/ioctl.h b/arch/parisc/include/uapi/asm/ioctl.h
index ec8efa02beda..b509bcc94a03 100644
--- a/arch/parisc/include/uapi/asm/ioctl.h
+++ b/arch/parisc/include/uapi/asm/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *    Linux/PA-RISC Project (http://www.parisc-linux.org/)
  *    Copyright (C) 1999,2003 Matthew Wilcox < willy at debian . org >
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index d0e3321403be..aafb1c0ca0af 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_PARISC_IOCTLS_H__
 #define __ARCH_PARISC_IOCTLS_H__
 
diff --git a/arch/parisc/include/uapi/asm/ipcbuf.h b/arch/parisc/include/uapi/asm/ipcbuf.h
index 790c4119f647..edf266204b49 100644
--- a/arch/parisc/include/uapi/asm/ipcbuf.h
+++ b/arch/parisc/include/uapi/asm/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __PARISC_IPCBUF_H__
 #define __PARISC_IPCBUF_H__
 
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h
index 775b5d5e41a1..d1af0d74a188 100644
--- a/arch/parisc/include/uapi/asm/mman.h
+++ b/arch/parisc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __PARISC_MMAN_H__
 #define __PARISC_MMAN_H__
 
diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h
index 2e83ac758e19..b48b810e626b 100644
--- a/arch/parisc/include/uapi/asm/msgbuf.h
+++ b/arch/parisc/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_MSGBUF_H
 #define _PARISC_MSGBUF_H
 
diff --git a/arch/parisc/include/uapi/asm/pdc.h b/arch/parisc/include/uapi/asm/pdc.h
index 1f30b49772aa..0ad117617f1a 100644
--- a/arch/parisc/include/uapi/asm/pdc.h
+++ b/arch/parisc/include/uapi/asm/pdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_PARISC_PDC_H
 #define _UAPI_PARISC_PDC_H
 
diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
index f3b5f70b9a5f..2785632c85e7 100644
--- a/arch/parisc/include/uapi/asm/posix_types.h
+++ b/arch/parisc/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_PARISC_POSIX_TYPES_H
 #define __ARCH_PARISC_POSIX_TYPES_H
 
diff --git a/arch/parisc/include/uapi/asm/ptrace.h b/arch/parisc/include/uapi/asm/ptrace.h
index 02ce2eb99a7f..e72e06247f51 100644
--- a/arch/parisc/include/uapi/asm/ptrace.h
+++ b/arch/parisc/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* written by Philipp Rumpf, Copyright (C) 1999 SuSE GmbH Nuernberg
 ** Copyright (C) 2000 Grant Grundler, Hewlett-Packard
 */
diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index c20971bf520f..746c5d86a9b1 100644
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_SEMBUF_H
 #define _PARISC_SEMBUF_H
 
diff --git a/arch/parisc/include/uapi/asm/setup.h b/arch/parisc/include/uapi/asm/setup.h
index 7da2e5b8747e..78b2f4ec7d65 100644
--- a/arch/parisc/include/uapi/asm/setup.h
+++ b/arch/parisc/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_SETUP_H
 #define _PARISC_SETUP_H
 
diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 750e13e77991..cd4dbce55d0b 100644
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_SHMBUF_H
 #define _PARISC_SHMBUF_H
 
diff --git a/arch/parisc/include/uapi/asm/sigcontext.h b/arch/parisc/include/uapi/asm/sigcontext.h
index 27ef31bb3b6e..be404bb0f8e3 100644
--- a/arch/parisc/include/uapi/asm/sigcontext.h
+++ b/arch/parisc/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMPARISC_SIGCONTEXT_H
 #define _ASMPARISC_SIGCONTEXT_H
 
diff --git a/arch/parisc/include/uapi/asm/siginfo.h b/arch/parisc/include/uapi/asm/siginfo.h
index 8fd10f85c50e..4a1062e05aaf 100644
--- a/arch/parisc/include/uapi/asm/siginfo.h
+++ b/arch/parisc/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_SIGINFO_H
 #define _PARISC_SIGINFO_H
 
diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h
index e26043b73f5d..d38563a394f2 100644
--- a/arch/parisc/include/uapi/asm/signal.h
+++ b/arch/parisc/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_PARISC_SIGNAL_H
 #define _UAPI_ASM_PARISC_SIGNAL_H
 
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 3b2bf7ae703b..1d0fdc3b5d22 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_SOCKET_H
 #define _UAPI_ASM_SOCKET_H
 
diff --git a/arch/parisc/include/uapi/asm/sockios.h b/arch/parisc/include/uapi/asm/sockios.h
index dabfbc7483f6..66a3ba64d53f 100644
--- a/arch/parisc/include/uapi/asm/sockios.h
+++ b/arch/parisc/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_PARISC_SOCKIOS__
 #define __ARCH_PARISC_SOCKIOS__
 
diff --git a/arch/parisc/include/uapi/asm/stat.h b/arch/parisc/include/uapi/asm/stat.h
index 3310d2a49759..b5bbf6704cae 100644
--- a/arch/parisc/include/uapi/asm/stat.h
+++ b/arch/parisc/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_STAT_H
 #define _PARISC_STAT_H
 
diff --git a/arch/parisc/include/uapi/asm/statfs.h b/arch/parisc/include/uapi/asm/statfs.h
index 324bea905dc6..e5de020c21ab 100644
--- a/arch/parisc/include/uapi/asm/statfs.h
+++ b/arch/parisc/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_STATFS_H
 #define _PARISC_STATFS_H
 
diff --git a/arch/parisc/include/uapi/asm/swab.h b/arch/parisc/include/uapi/asm/swab.h
index 928e1bbac98f..35fb2d1bfbbd 100644
--- a/arch/parisc/include/uapi/asm/swab.h
+++ b/arch/parisc/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_SWAB_H
 #define _PARISC_SWAB_H
 
diff --git a/arch/parisc/include/uapi/asm/termbits.h b/arch/parisc/include/uapi/asm/termbits.h
index d1ab92177a5c..40e920f8d683 100644
--- a/arch/parisc/include/uapi/asm/termbits.h
+++ b/arch/parisc/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_PARISC_TERMBITS_H__
 #define __ARCH_PARISC_TERMBITS_H__
 
diff --git a/arch/parisc/include/uapi/asm/termios.h b/arch/parisc/include/uapi/asm/termios.h
index f3377395070d..aba174f23ef0 100644
--- a/arch/parisc/include/uapi/asm/termios.h
+++ b/arch/parisc/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_PARISC_TERMIOS_H
 #define _UAPI_PARISC_TERMIOS_H
 
diff --git a/arch/parisc/include/uapi/asm/types.h b/arch/parisc/include/uapi/asm/types.h
index 8866f9bbdeaf..28c7d7453b10 100644
--- a/arch/parisc/include/uapi/asm/types.h
+++ b/arch/parisc/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _PARISC_TYPES_H
 #define _PARISC_TYPES_H
 
diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h
index 667c99421003..4872e77aa96b 100644
--- a/arch/parisc/include/uapi/asm/unistd.h
+++ b/arch/parisc/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_PARISC_UNISTD_H_
 #define _UAPI_ASM_PARISC_UNISTD_H_
 
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index c4294df69fb6..649dc3eda448 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for arch/parisc/kernel
 #
diff --git a/arch/parisc/kernel/audit.c b/arch/parisc/kernel/audit.c
index eb64a6148c82..9eb47b2225d2 100644
--- a/arch/parisc/kernel/audit.c
+++ b/arch/parisc/kernel/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/arch/parisc/kernel/binfmt_elf32.c b/arch/parisc/kernel/binfmt_elf32.c
index f2adcf33f8f2..20dfa081ed0b 100644
--- a/arch/parisc/kernel/binfmt_elf32.c
+++ b/arch/parisc/kernel/binfmt_elf32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for 32-bit Linux/Parisc ELF binaries on 64 bit kernels
  *
diff --git a/arch/parisc/kernel/compat_audit.c b/arch/parisc/kernel/compat_audit.c
index c74478f6bc74..20c39c9d86a9 100644
--- a/arch/parisc/kernel/compat_audit.c
+++ b/arch/parisc/kernel/compat_audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/unistd.h>
 
 unsigned int parisc32_dir_class[] = {
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index ab80e5c6f651..6d471c00c71a 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -233,6 +233,26 @@ int pdc_add_valid(unsigned long address)
 EXPORT_SYMBOL(pdc_add_valid);
 
 /**
+ * pdc_instr - Get instruction that invokes PDCE_CHECK in HPMC handler.
+ * @instr: Pointer to variable which will get instruction opcode.
+ *
+ * The return value is PDC_OK (0) in case call succeeded.
+ */
+int __init pdc_instr(unsigned int *instr)
+{
+	int retval;
+	unsigned long flags;
+
+	spin_lock_irqsave(&pdc_lock, flags);
+	retval = mem_pdc_call(PDC_INSTR, 0UL, __pa(pdc_result));
+	convert_to_wide(pdc_result);
+	*instr = pdc_result[0];
+	spin_unlock_irqrestore(&pdc_lock, flags);
+
+	return retval;
+}
+
+/**
  * pdc_chassis_info - Return chassis information.
  * @result: The return buffer.
  * @chassis_info: The memory buffer address.
diff --git a/arch/parisc/kernel/ftrace.c b/arch/parisc/kernel/ftrace.c
index 5a5506a35395..6fa8535d3cce 100644
--- a/arch/parisc/kernel/ftrace.c
+++ b/arch/parisc/kernel/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Code for tracing calls in Linux kernel.
  * Copyright (C) 2009-2016 Helge Deller <deller@gmx.de>
diff --git a/arch/parisc/kernel/pa7300lc.c b/arch/parisc/kernel/pa7300lc.c
index 9b245fc67560..0d770ac83f70 100644
--- a/arch/parisc/kernel/pa7300lc.c
+++ b/arch/parisc/kernel/pa7300lc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *   linux/arch/parisc/kernel/pa7300lc.c
  *	- PA7300LC-specific functions	
diff --git a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
index c6d6272a934f..7baa2265d439 100644
--- a/arch/parisc/kernel/parisc_ksyms.c
+++ b/arch/parisc/kernel/parisc_ksyms.c
@@ -35,12 +35,12 @@ EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(__xchg8);
 EXPORT_SYMBOL(__xchg32);
 EXPORT_SYMBOL(__cmpxchg_u32);
+EXPORT_SYMBOL(__cmpxchg_u64);
 #ifdef CONFIG_SMP
 EXPORT_SYMBOL(__atomic_hash);
 #endif
 #ifdef CONFIG_64BIT
 EXPORT_SYMBOL(__xchg64);
-EXPORT_SYMBOL(__cmpxchg_u64);
 #endif
 
 #include <linux/uaccess.h>
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index bd4c0a7471d3..412231d101f9 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 ** PARISC 1.1 Dynamic DMA mapping support.
 ** This implementation is for PA-RISC platforms that do not support
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index 10a5ae9553fd..27a2dd616a7d 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -92,7 +92,7 @@ static int pdc_console_setup(struct console *co, char *options)
 #define PDC_CONS_POLL_DELAY (30 * HZ / 1000)
 
 static void pdc_console_poll(unsigned long unused);
-static DEFINE_TIMER(pdc_console_timer, pdc_console_poll, 0, 0);
+static DEFINE_TIMER(pdc_console_timer, pdc_console_poll);
 static struct tty_port tty_port;
 
 static int pdc_console_tty_open(struct tty_struct *tty, struct file *filp)
diff --git a/arch/parisc/kernel/pdt.c b/arch/parisc/kernel/pdt.c
index 05730a83895c..e07eb34c8750 100644
--- a/arch/parisc/kernel/pdt.c
+++ b/arch/parisc/kernel/pdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Page Deallocation Table (PDT) support
  *
@@ -15,6 +16,7 @@
 #include <linux/memblock.h>
 #include <linux/seq_file.h>
 #include <linux/kthread.h>
+#include <linux/initrd.h>
 
 #include <asm/pdc.h>
 #include <asm/pdcpat.h>
@@ -216,8 +218,16 @@ void __init pdc_pdt_init(void)
 	}
 
 	for (i = 0; i < pdt_status.pdt_entries; i++) {
+		unsigned long addr;
+
 		report_mem_err(pdt_entry[i]);
 
+		addr = pdt_entry[i] & PDT_ADDR_PHYS_MASK;
+		if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) &&
+			addr >= initrd_start && addr < initrd_end)
+			pr_crit("CRITICAL: initrd possibly broken "
+				"due to bad memory!\n");
+
 		/* mark memory page bad */
 		memblock_reserve(pdt_entry[i] & PAGE_MASK, PAGE_SIZE);
 	}
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index a45a67d526f8..30f92391a93e 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -146,7 +146,7 @@ void machine_power_off(void)
 
 	/* prevent soft lockup/stalled CPU messages for endless loop. */
 	rcu_sysrq_start();
-	lockup_detector_suspend();
+	lockup_detector_soft_poweroff();
 	for (;;);
 }
 
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index a778bd3c107c..e120d63c1b28 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -317,7 +317,7 @@ void __init collect_boot_cpu_data(void)
  *
  * o Enable CPU profiling hooks.
  */
-int init_per_cpu(int cpunum)
+int __init init_per_cpu(int cpunum)
 {
 	int ret;
 	struct pdc_coproc_cfg coproc_cfg;
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index f8b6959d2d97..1a2be6e639b5 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Kernel support for the ptrace() and syscall tracing interfaces.
  *
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index dee6f9d6a153..f7d0c3b33d70 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -38,6 +38,7 @@
 #include <linux/export.h>
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
+#include <linux/start_kernel.h>
 
 #include <asm/processor.h>
 #include <asm/sections.h>
@@ -48,6 +49,7 @@
 #include <asm/io.h>
 #include <asm/setup.h>
 #include <asm/unwind.h>
+#include <asm/smp.h>
 
 static char __initdata command_line[COMMAND_LINE_SIZE];
 
@@ -115,7 +117,6 @@ void __init dma_ops_init(void)
 }
 #endif
 
-extern int init_per_cpu(int cpuid);
 extern void collect_boot_cpu_data(void);
 
 void __init setup_arch(char **cmdline_p)
@@ -398,9 +399,8 @@ static int __init parisc_init(void)
 }
 arch_initcall(parisc_init);
 
-void start_parisc(void)
+void __init start_parisc(void)
 {
-	extern void start_kernel(void);
 	extern void early_trap_init(void);
 
 	int ret, cpunum;
diff --git a/arch/parisc/kernel/signal.c b/arch/parisc/kernel/signal.c
index 26f12f45b4bb..f2a4038e275b 100644
--- a/arch/parisc/kernel/signal.c
+++ b/arch/parisc/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/parisc/kernel/signal.c: Architecture-specific signal
  *  handling support.
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 63365106ea19..30c28ab14540 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -255,12 +255,11 @@ void arch_send_call_function_single_ipi(int cpu)
 static void __init
 smp_cpu_init(int cpunum)
 {
-	extern int init_per_cpu(int);  /* arch/parisc/kernel/processor.c */
 	extern void init_IRQ(void);    /* arch/parisc/kernel/irq.c */
 	extern void start_cpu_itimer(void); /* arch/parisc/kernel/time.c */
 
 	/* Set modes and Enable floating point coprocessor */
-	(void) init_per_cpu(cpunum);
+	init_per_cpu(cpunum);
 
 	disable_sr_hashing();
 
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 93c1963d76fe..2a12a547b447 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sys_parisc32.c: Conversion between 32bit and 64bit native syscalls.
  *
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 23de307c3052..41e60a9c7db2 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -742,7 +742,7 @@ lws_compare_and_swap_2:
 10:	ldd	0(%r25), %r25
 11:	ldd	0(%r24), %r24
 #else
-	/* Load new value into r22/r23 - high/low */
+	/* Load old value into r22/r23 - high/low */
 10:	ldw	0(%r25), %r22
 11:	ldw	4(%r25), %r23
 	/* Load new value into fr4 for atomic store later */
@@ -834,11 +834,11 @@ cas2_action:
 	copy	%r0, %r28
 #else
 	/* Compare first word */
-19:	ldw,ma	0(%r26), %r29
+19:	ldw	0(%r26), %r29
 	sub,=	%r29, %r22, %r0
 	b,n	cas2_end
 	/* Compare second word */
-20:	ldw,ma	4(%r26), %r29
+20:	ldw	4(%r26), %r29
 	sub,=	%r29, %r23, %r0
 	b,n	cas2_end
 	/* Perform the store */
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index 2d956aa0a38a..4b8fd6dc22da 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/parisc/kernel/time.c
  *
@@ -253,7 +254,10 @@ static int __init init_cr16_clocksource(void)
 		cpu0_loc = per_cpu(cpu_data, 0).cpu_loc;
 
 		for_each_online_cpu(cpu) {
-			if (cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc)
+			if (cpu == 0)
+				continue;
+			if ((cpu0_loc != 0) &&
+			    (cpu0_loc == per_cpu(cpu_data, cpu).cpu_loc))
 				continue;
 
 			clocksource_cr16.name = "cr16_unstable";
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index 991654c88eec..8453724b8009 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/parisc/traps.c
  *
@@ -817,7 +818,7 @@ void __init initialize_ivt(const void *iva)
 	u32 check = 0;
 	u32 *ivap;
 	u32 *hpmcp;
-	u32 length;
+	u32 length, instr;
 
 	if (strcmp((const char *)iva, "cows can fly"))
 		panic("IVT invalid");
@@ -827,6 +828,14 @@ void __init initialize_ivt(const void *iva)
 	for (i = 0; i < 8; i++)
 	    *ivap++ = 0;
 
+	/*
+	 * Use PDC_INSTR firmware function to get instruction that invokes
+	 * PDCE_CHECK in HPMC handler.  See programming note at page 1-31 of
+	 * the PA 1.1 Firmware Architecture document.
+	 */
+	if (pdc_instr(&instr) == PDC_OK)
+		ivap[0] = instr;
+
 	/* Compute Checksum for HPMC handler */
 	length = os_hpmc_size;
 	ivap[7] = length;
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 48dc7d4d20bb..5a657986ebbf 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Kernel unwinding support
  *
@@ -14,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/kallsyms.h>
 #include <linux/sort.h>
+#include <linux/sched.h>
 
 #include <linux/uaccess.h>
 #include <asm/assembly.h>
@@ -279,6 +281,17 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 
 			info->prev_sp = sp - 64;
 			info->prev_ip = 0;
+
+			/* The stack is at the end inside the thread_union
+			 * struct. If we reach data, we have reached the
+			 * beginning of the stack and should stop unwinding. */
+			if (info->prev_sp >= (unsigned long) task_thread_info(info->t) &&
+			    info->prev_sp < ((unsigned long) task_thread_info(info->t)
+						+ THREAD_SZ_ALGN)) {
+				info->prev_sp = 0;
+				break;
+			}
+
 			if (get_user(tmp, (unsigned long *)(info->prev_sp - RP_OFFSET))) 
 				break;
 			info->prev_ip = tmp;
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index ffe2cbf52d1a..159a2ec0b4e0 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*    Kernel link layout for various "sections"
  *
  *    Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org>
diff --git a/arch/parisc/lib/bitops.c b/arch/parisc/lib/bitops.c
index 8e45b0a97abf..70ffbcf889b8 100644
--- a/arch/parisc/lib/bitops.c
+++ b/arch/parisc/lib/bitops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bitops.c: atomic operations which got too long to be inlined all over
  *      the place.
diff --git a/arch/parisc/lib/delay.c b/arch/parisc/lib/delay.c
index ec9255f27a81..7eab4bb8abe6 100644
--- a/arch/parisc/lib/delay.c
+++ b/arch/parisc/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Precise Delay Loops for parisc
  *
diff --git a/arch/parisc/lib/io.c b/arch/parisc/lib/io.c
index 7c1406ff825e..7c00496b47d4 100644
--- a/arch/parisc/lib/io.c
+++ b/arch/parisc/lib/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/parisc/lib/io.c
  *
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index eaffbb90aa14..4b19e6e64fb7 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * iomap.c - Implement iomap interface for PA-RISC
  * Copyright (c) 2004 Matthew Wilcox
diff --git a/arch/parisc/lib/ucmpdi2.c b/arch/parisc/lib/ucmpdi2.c
index 149c016f32c5..8e6014a142ef 100644
--- a/arch/parisc/lib/ucmpdi2.c
+++ b/arch/parisc/lib/ucmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 
 union ull_union {
diff --git a/arch/parisc/math-emu/Makefile b/arch/parisc/math-emu/Makefile
index 0bd63b08a79a..b6c4b254901a 100644
--- a/arch/parisc/math-emu/Makefile
+++ b/arch/parisc/math-emu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux/parisc floating point code
 #
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 5b101f6a5607..e247edbca68e 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -17,6 +17,7 @@
 #include <linux/interrupt.h>
 #include <linux/extable.h>
 #include <linux/uaccess.h>
+#include <linux/hugetlb.h>
 
 #include <asm/traps.h>
 
@@ -261,7 +262,7 @@ void do_page_fault(struct pt_regs *regs, unsigned long code,
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	unsigned long acc_type;
-	int fault;
+	int fault = 0;
 	unsigned int flags;
 
 	if (faulthandler_disabled())
@@ -315,7 +316,8 @@ good_area:
 			goto out_of_memory;
 		else if (fault & VM_FAULT_SIGSEGV)
 			goto bad_area;
-		else if (fault & VM_FAULT_SIGBUS)
+		else if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
+				  VM_FAULT_HWPOISON_LARGE))
 			goto bad_area;
 		BUG();
 	}
@@ -352,8 +354,7 @@ bad_area:
 
 	if (user_mode(regs)) {
 		struct siginfo si;
-
-		show_signal_msg(regs, code, address, tsk, vma);
+		unsigned int lsb = 0;
 
 		switch (code) {
 		case 15:	/* Data TLB miss fault/Data page fault */
@@ -386,6 +387,30 @@ bad_area:
 			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
 			break;
 		}
+
+#ifdef CONFIG_MEMORY_FAILURE
+		if (fault & (VM_FAULT_HWPOISON|VM_FAULT_HWPOISON_LARGE)) {
+			printk(KERN_ERR
+	"MCE: Killing %s:%d due to hardware memory corruption fault at %08lx\n",
+			tsk->comm, tsk->pid, address);
+			si.si_signo = SIGBUS;
+			si.si_code = BUS_MCEERR_AR;
+		}
+#endif
+
+		/*
+		 * Either small page or large page may be poisoned.
+		 * In other words, VM_FAULT_HWPOISON_LARGE and
+		 * VM_FAULT_HWPOISON are mutually exclusive.
+		 */
+		if (fault & VM_FAULT_HWPOISON_LARGE)
+			lsb = hstate_index_to_shift(VM_FAULT_GET_HINDEX(fault));
+		else if (fault & VM_FAULT_HWPOISON)
+			lsb = PAGE_SHIFT;
+		else
+			show_signal_msg(regs, code, address, tsk, vma);
+		si.si_addr_lsb = lsb;
+
 		si.si_errno = 0;
 		si.si_addr = (void __user *) address;
 		force_sig_info(si.si_signo, &si, current);
diff --git a/arch/parisc/mm/hugetlbpage.c b/arch/parisc/mm/hugetlbpage.c
index 5eb8f633b282..d77479ae3af2 100644
--- a/arch/parisc/mm/hugetlbpage.c
+++ b/arch/parisc/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PARISC64 Huge TLB page support.
  *
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 1ca9a2b4239f..13f7854e0d49 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/parisc/mm/init.c
  *
diff --git a/arch/parisc/mm/ioremap.c b/arch/parisc/mm/ioremap.c
index 838d0259cd27..92a9b5f12f98 100644
--- a/arch/parisc/mm/ioremap.c
+++ b/arch/parisc/mm/ioremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/parisc/mm/ioremap.c
  *
diff --git a/arch/parisc/oprofile/Makefile b/arch/parisc/oprofile/Makefile
index e9feca1ca28b..86a1ccc328eb 100644
--- a/arch/parisc/oprofile/Makefile
+++ b/arch/parisc/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 809c468edab1..cb782ac1c35d 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 source "arch/powerpc/platforms/Kconfig.cputype"
 
 config PPC32
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index c86df246339e..be1c8c5beb61 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/powerpc/Makefile.postlink b/arch/powerpc/Makefile.postlink
index 5db43ebbe2df..83f8e5ba2722 100644
--- a/arch/powerpc/Makefile.postlink
+++ b/arch/powerpc/Makefile.postlink
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ===========================================================================
 # Post-link powerpc pass
 # ===========================================================================
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index c4e6fe35c075..651974192c4d 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for making ELF bootable images for booting on CHRP
 # using Open Firmware.
 #
diff --git a/arch/powerpc/boot/cpm-serial.c b/arch/powerpc/boot/cpm-serial.c
index 19dc15abe43d..dfb56829cace 100644
--- a/arch/powerpc/boot/cpm-serial.c
+++ b/arch/powerpc/boot/cpm-serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * CPM serial console support.
  *
diff --git a/arch/powerpc/boot/cuboot.h b/arch/powerpc/boot/cuboot.h
index cd2aa7f348f3..c2b2c58eaa0b 100644
--- a/arch/powerpc/boot/cuboot.h
+++ b/arch/powerpc/boot/cuboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_CUBOOT_H_
 #define _PPC_BOOT_CUBOOT_H_
 
diff --git a/arch/powerpc/boot/dcr.h b/arch/powerpc/boot/dcr.h
index bf8f4ede1928..334ab8b5a668 100644
--- a/arch/powerpc/boot/dcr.h
+++ b/arch/powerpc/boot/dcr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_DCR_H_
 #define _PPC_BOOT_DCR_H_
 
diff --git a/arch/powerpc/boot/dts/virtex440-ml510.dts b/arch/powerpc/boot/dts/virtex440-ml510.dts
index 81a8dc2c6365..81201d3907e2 100644
--- a/arch/powerpc/boot/dts/virtex440-ml510.dts
+++ b/arch/powerpc/boot/dts/virtex440-ml510.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xilinx ML510 Reference Design support
  *
diff --git a/arch/powerpc/boot/elf.h b/arch/powerpc/boot/elf.h
index 1941bc50d4c5..f6aa7c20fcaf 100644
--- a/arch/powerpc/boot/elf.h
+++ b/arch/powerpc/boot/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_ELF_H_
 #define _PPC_BOOT_ELF_H_
 
diff --git a/arch/powerpc/boot/epapr-wrapper.c b/arch/powerpc/boot/epapr-wrapper.c
index c10191006673..01262f50b769 100644
--- a/arch/powerpc/boot/epapr-wrapper.c
+++ b/arch/powerpc/boot/epapr-wrapper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 extern void epapr_platform_init(unsigned long r3, unsigned long r4,
 				unsigned long r5, unsigned long r6,
 				unsigned long r7);
diff --git a/arch/powerpc/boot/fixed-head.S b/arch/powerpc/boot/fixed-head.S
index 8e14cd9e1a54..4346c750cac1 100644
--- a/arch/powerpc/boot/fixed-head.S
+++ b/arch/powerpc/boot/fixed-head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.text
 	.global _zimage_start
 _zimage_start:
diff --git a/arch/powerpc/boot/fsl-soc.h b/arch/powerpc/boot/fsl-soc.h
index 5da26fc6e3cf..00b2cb89ff2f 100644
--- a/arch/powerpc/boot/fsl-soc.h
+++ b/arch/powerpc/boot/fsl-soc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_FSL_SOC_H_
 #define _PPC_BOOT_FSL_SOC_H_
 
diff --git a/arch/powerpc/boot/io.h b/arch/powerpc/boot/io.h
index 394da5500466..5c6f90c34923 100644
--- a/arch/powerpc/boot/io.h
+++ b/arch/powerpc/boot/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IO_H
 #define _IO_H
 
diff --git a/arch/powerpc/boot/libfdt_env.h b/arch/powerpc/boot/libfdt_env.h
index 7e3789ea396b..f52c31b1f48f 100644
--- a/arch/powerpc/boot/libfdt_env.h
+++ b/arch/powerpc/boot/libfdt_env.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_POWERPC_BOOT_LIBFDT_ENV_H
 #define _ARCH_POWERPC_BOOT_LIBFDT_ENV_H
 
diff --git a/arch/powerpc/boot/mktree.c b/arch/powerpc/boot/mktree.c
index e2ae24340fc8..dc603f3c15be 100644
--- a/arch/powerpc/boot/mktree.c
+++ b/arch/powerpc/boot/mktree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Makes a tree bootable image for IBM Evaluation boards.
  * Basically, just take a zImage, skip the ELF header, and stuff
diff --git a/arch/powerpc/boot/motload-head.S b/arch/powerpc/boot/motload-head.S
index 41cabb4b63fa..826dad0c19d9 100644
--- a/arch/powerpc/boot/motload-head.S
+++ b/arch/powerpc/boot/motload-head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "ppc_asm.h"
 
 	.text
diff --git a/arch/powerpc/boot/mpc52xx-psc.c b/arch/powerpc/boot/mpc52xx-psc.c
index d4cb4e4e0938..c2c08633ee35 100644
--- a/arch/powerpc/boot/mpc52xx-psc.c
+++ b/arch/powerpc/boot/mpc52xx-psc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MPC5200 PSC serial console support.
  *
diff --git a/arch/powerpc/boot/mpc8xx.h b/arch/powerpc/boot/mpc8xx.h
index 3f59901ab1c0..3852ed90047f 100644
--- a/arch/powerpc/boot/mpc8xx.h
+++ b/arch/powerpc/boot/mpc8xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_MPC8xx_H_
 #define _PPC_BOOT_MPC8xx_H_
 
diff --git a/arch/powerpc/boot/ns16550.c b/arch/powerpc/boot/ns16550.c
index 8c9ead94be06..b0da4466d419 100644
--- a/arch/powerpc/boot/ns16550.c
+++ b/arch/powerpc/boot/ns16550.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 16550 serial console support.
  *
diff --git a/arch/powerpc/boot/of.h b/arch/powerpc/boot/of.h
index 53f8f27f94e4..31b2f5dfd589 100644
--- a/arch/powerpc/boot/of.h
+++ b/arch/powerpc/boot/of.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_OF_H_
 #define _PPC_BOOT_OF_H_
 
diff --git a/arch/powerpc/boot/planetcore.h b/arch/powerpc/boot/planetcore.h
index d53c733cc463..5311db06c62b 100644
--- a/arch/powerpc/boot/planetcore.h
+++ b/arch/powerpc/boot/planetcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_PLANETCORE_H_
 #define _PPC_BOOT_PLANETCORE_H_
 
diff --git a/arch/powerpc/boot/pq2.h b/arch/powerpc/boot/pq2.h
index 481698c7a51a..f577b3bec60b 100644
--- a/arch/powerpc/boot/pq2.h
+++ b/arch/powerpc/boot/pq2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_PQ2_H_
 #define _PPC_BOOT_PQ2_H_
 
diff --git a/arch/powerpc/boot/pseries-head.S b/arch/powerpc/boot/pseries-head.S
index 6ef6e02e80f9..1b1a638ce6e8 100644
--- a/arch/powerpc/boot/pseries-head.S
+++ b/arch/powerpc/boot/pseries-head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "ppc_asm.h"
 
 	.text
diff --git a/arch/powerpc/boot/redboot.h b/arch/powerpc/boot/redboot.h
index ace0b7fed8eb..8f319b1add32 100644
--- a/arch/powerpc/boot/redboot.h
+++ b/arch/powerpc/boot/redboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_REDBOOT_H
 #define _PPC_REDBOOT_H
 
diff --git a/arch/powerpc/boot/rs6000.h b/arch/powerpc/boot/rs6000.h
index d70517ccc0f7..a9d879155ef9 100644
--- a/arch/powerpc/boot/rs6000.h
+++ b/arch/powerpc/boot/rs6000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* IBM RS/6000 "XCOFF" file definitions for BFD.
    Copyright (C) 1990, 1991 Free Software Foundation, Inc.
    FIXME: Can someone provide a transliteration of this name into ASCII?
diff --git a/arch/powerpc/boot/stdio.h b/arch/powerpc/boot/stdio.h
index adffc58412d4..884d5959a9ae 100644
--- a/arch/powerpc/boot/stdio.h
+++ b/arch/powerpc/boot/stdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_STDIO_H_
 #define _PPC_BOOT_STDIO_H_
 
diff --git a/arch/powerpc/boot/stdlib.h b/arch/powerpc/boot/stdlib.h
index 1bf01ac73aba..0a61fcd10fdb 100644
--- a/arch/powerpc/boot/stdlib.h
+++ b/arch/powerpc/boot/stdlib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_STDLIB_H_
 #define _PPC_BOOT_STDLIB_H_
 
diff --git a/arch/powerpc/boot/string.h b/arch/powerpc/boot/string.h
index 50091cc0eed9..3fb71171da49 100644
--- a/arch/powerpc/boot/string.h
+++ b/arch/powerpc/boot/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_STRING_H_
 #define _PPC_BOOT_STRING_H_
 #include <stddef.h>
diff --git a/arch/powerpc/boot/swab.h b/arch/powerpc/boot/swab.h
index d0e1431084ca..11d2069fbb66 100644
--- a/arch/powerpc/boot/swab.h
+++ b/arch/powerpc/boot/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_BOOT_SWAB_H_
 #define _PPC_BOOT_SWAB_H_
 
diff --git a/arch/powerpc/boot/types.h b/arch/powerpc/boot/types.h
index af6b66b842c4..8a4c418b7260 100644
--- a/arch/powerpc/boot/types.h
+++ b/arch/powerpc/boot/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TYPES_H_
 #define _TYPES_H_
 
diff --git a/arch/powerpc/boot/virtex405-head.S b/arch/powerpc/boot/virtex405-head.S
index 3edb13f94669..00bab7d7c48c 100644
--- a/arch/powerpc/boot/virtex405-head.S
+++ b/arch/powerpc/boot/virtex405-head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "ppc_asm.h"
 
 	.text
diff --git a/arch/powerpc/boot/xz_config.h b/arch/powerpc/boot/xz_config.h
index 5c6afdbca642..e22e5b3770dd 100644
--- a/arch/powerpc/boot/xz_config.h
+++ b/arch/powerpc/boot/xz_config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XZ_CONFIG_H__
 #define __XZ_CONFIG_H__
 
diff --git a/arch/powerpc/boot/zImage.coff.lds.S b/arch/powerpc/boot/zImage.coff.lds.S
index de4c9e3c9344..117951295117 100644
--- a/arch/powerpc/boot/zImage.coff.lds.S
+++ b/arch/powerpc/boot/zImage.coff.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 OUTPUT_ARCH(powerpc:common)
 ENTRY(_zimage_start_opd)
 EXTERN(_zimage_start_opd)
diff --git a/arch/powerpc/boot/zImage.lds.S b/arch/powerpc/boot/zImage.lds.S
index f080abfc2f83..4ac1e36edfe7 100644
--- a/arch/powerpc/boot/zImage.lds.S
+++ b/arch/powerpc/boot/zImage.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 
 #ifdef CONFIG_PPC64_BOOT_WRAPPER
diff --git a/arch/powerpc/boot/zImage.ps3.lds.S b/arch/powerpc/boot/zImage.ps3.lds.S
index aaa469c1e60d..7b2ff2eaa73a 100644
--- a/arch/powerpc/boot/zImage.ps3.lds.S
+++ b/arch/powerpc/boot/zImage.ps3.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 OUTPUT_ARCH(powerpc:common)
 ENTRY(_zimage_start)
 EXTERN(_zimage_start)
diff --git a/arch/powerpc/configs/g5_defconfig b/arch/powerpc/configs/g5_defconfig
index e084fa548d73..063817fee61c 100644
--- a/arch/powerpc/configs/g5_defconfig
+++ b/arch/powerpc/configs/g5_defconfig
@@ -138,10 +138,11 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQUENCER_OSS=m
 CONFIG_SND_POWERMAC=m
 CONFIG_SND_AOA=m
 CONFIG_SND_AOA_FABRIC_LAYOUT=m
diff --git a/arch/powerpc/configs/gamecube_defconfig b/arch/powerpc/configs/gamecube_defconfig
index 79bbc8238b32..805b0f87653c 100644
--- a/arch/powerpc/configs/gamecube_defconfig
+++ b/arch/powerpc/configs/gamecube_defconfig
@@ -64,11 +64,12 @@ CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_CLUT224 is not set
 CONFIG_SOUND=y
 CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=y
 CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
 # CONFIG_SND_VERBOSE_PROCFS is not set
+CONFIG_SND_SEQUENCER=y
+CONFIG_SND_SEQUENCER_OSS=y
 # CONFIG_USB_SUPPORT is not set
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_GENERIC=y
diff --git a/arch/powerpc/configs/pasemi_defconfig b/arch/powerpc/configs/pasemi_defconfig
index 8cf4a46bef86..6daa56f8895c 100644
--- a/arch/powerpc/configs/pasemi_defconfig
+++ b/arch/powerpc/configs/pasemi_defconfig
@@ -115,9 +115,10 @@ CONFIG_VGACON_SOFT_SCROLLBACK=y
 CONFIG_LOGO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=y
 CONFIG_SND_PCM_OSS=y
+CONFIG_SND_SEQUENCER=y
 CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_USB_AUDIO=y
 CONFIG_SND_USB_USX2Y=y
diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig
index 8e798b1fbc99..1aab9a62a681 100644
--- a/arch/powerpc/configs/pmac32_defconfig
+++ b/arch/powerpc/configs/pmac32_defconfig
@@ -227,11 +227,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
 CONFIG_SND_DUMMY=m
 CONFIG_SND_POWERMAC=m
 CONFIG_SND_AOA=m
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 791db775a09c..6ddca80c52c3 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -222,11 +222,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
 CONFIG_SND_POWERMAC=m
 CONFIG_SND_AOA=m
 CONFIG_SND_AOA_FABRIC_LAYOUT=m
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index d0fe0f8f77c2..41d85cb3c9a2 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -141,11 +141,12 @@ CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
 CONFIG_HID_DRAGONRISE=y
 CONFIG_HID_GYRATION=y
 CONFIG_HID_TWINHAN=y
diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index ae6eba482d75..da0e8d535eb8 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -789,17 +789,18 @@ CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_VGA16 is not set
 CONFIG_SOUND=m
 CONFIG_SND=m
-CONFIG_SND_SEQUENCER=m
-CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=m
 CONFIG_SND_PCM_OSS=m
-CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_SND_DYNAMIC_MINORS=y
 # CONFIG_SND_SUPPORT_OLD_API is not set
 CONFIG_SND_VERBOSE_PRINTK=y
 CONFIG_SND_DEBUG=y
 CONFIG_SND_DEBUG_VERBOSE=y
 CONFIG_SND_PCM_XRUN_DEBUG=y
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_SEQ_DUMMY=m
+CONFIG_SND_SEQUENCER_OSS=m
 CONFIG_SND_DUMMY=m
 CONFIG_SND_VIRMIDI=m
 CONFIG_SND_MTPAV=m
diff --git a/arch/powerpc/configs/wii_defconfig b/arch/powerpc/configs/wii_defconfig
index aef41b17a8bc..9c7400a19e9d 100644
--- a/arch/powerpc/configs/wii_defconfig
+++ b/arch/powerpc/configs/wii_defconfig
@@ -79,11 +79,12 @@ CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_SOUND=y
 CONFIG_SND=y
-CONFIG_SND_SEQUENCER=y
+CONFIG_SND_OSSEMUL=y
 CONFIG_SND_MIXER_OSS=y
 CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
 # CONFIG_SND_VERBOSE_PROCFS is not set
+CONFIG_SND_SEQUENCER=y
+CONFIG_SND_SEQUENCER_OSS=y
 CONFIG_HID_APPLE=m
 CONFIG_HID_WACOM=m
 CONFIG_MMC=y
diff --git a/arch/powerpc/crypto/Makefile b/arch/powerpc/crypto/Makefile
index 67eca3af9fc7..4808d97fede5 100644
--- a/arch/powerpc/crypto/Makefile
+++ b/arch/powerpc/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # powerpc/crypto/Makefile
 #
diff --git a/arch/powerpc/crypto/sha1-powerpc-asm.S b/arch/powerpc/crypto/sha1-powerpc-asm.S
index 82ddc9bdfeb1..c8951ce0dcc4 100644
--- a/arch/powerpc/crypto/sha1-powerpc-asm.S
+++ b/arch/powerpc/crypto/sha1-powerpc-asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SHA-1 implementation for PowerPC.
  *
diff --git a/arch/powerpc/include/asm/agp.h b/arch/powerpc/include/asm/agp.h
index 416e12c2d505..b29b1186f819 100644
--- a/arch/powerpc/include/asm/agp.h
+++ b/arch/powerpc/include/asm/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_AGP_H
 #define _ASM_POWERPC_AGP_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/archrandom.h b/arch/powerpc/include/asm/archrandom.h
index 85e88f7a59c0..9c63b596e6ce 100644
--- a/arch/powerpc/include/asm/archrandom.h
+++ b/arch/powerpc/include/asm/archrandom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_ARCHRANDOM_H
 #define _ASM_POWERPC_ARCHRANDOM_H
 
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h
index a2cc8010cd72..682b3e6a1e21 100644
--- a/arch/powerpc/include/asm/atomic.h
+++ b/arch/powerpc/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_ATOMIC_H_
 #define _ASM_POWERPC_ATOMIC_H_
 
diff --git a/arch/powerpc/include/asm/backlight.h b/arch/powerpc/include/asm/backlight.h
index 8cf5c37c3817..1b5eab62ed04 100644
--- a/arch/powerpc/include/asm/backlight.h
+++ b/arch/powerpc/include/asm/backlight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Routines for handling backlight control on PowerBooks
  *
diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h
index 9c601adfc500..10daa1d56e0a 100644
--- a/arch/powerpc/include/asm/barrier.h
+++ b/arch/powerpc/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
  */
diff --git a/arch/powerpc/include/asm/book3s/32/hash.h b/arch/powerpc/include/asm/book3s/32/hash.h
index 880db13a2e9f..f2892c7ab73e 100644
--- a/arch/powerpc/include/asm/book3s/32/hash.h
+++ b/arch/powerpc/include/asm/book3s/32/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_32_HASH_H
 #define _ASM_POWERPC_BOOK3S_32_HASH_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/book3s/32/mmu-hash.h b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
index b82e063494dd..e38c91388c40 100644
--- a/arch/powerpc/include/asm/book3s/32/mmu-hash.h
+++ b/arch/powerpc/include/asm/book3s/32/mmu-hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_32_MMU_HASH_H_
 #define _ASM_POWERPC_BOOK3S_32_MMU_HASH_H_
 /*
diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h
index a120e7f8d535..5073cc75f1c8 100644
--- a/arch/powerpc/include/asm/book3s/32/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_32_PGALLOC_H
 #define _ASM_POWERPC_BOOK3S_32_PGALLOC_H
 
diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h
index 4d453f979553..016579ef16d3 100644
--- a/arch/powerpc/include/asm/book3s/32/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/32/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_32_PGTABLE_H
 #define _ASM_POWERPC_BOOK3S_32_PGTABLE_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/hash-4k.h b/arch/powerpc/include/asm/book3s/64/hash-4k.h
index 0c4e470571ca..197ced1eaaa0 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-4k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_HASH_4K_H
 #define _ASM_POWERPC_BOOK3S_64_HASH_4K_H
 /*
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h
index 9732837aaae8..8d40cf03cb67 100644
--- a/arch/powerpc/include/asm/book3s/64/hash-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_HASH_64K_H
 #define _ASM_POWERPC_BOOK3S_64_HASH_64K_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index f88452019114..ecb1239d74f4 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_HASH_H
 #define _ASM_POWERPC_BOOK3S_64_HASH_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/book3s/64/hugetlb.h b/arch/powerpc/include/asm/book3s/64/hugetlb.h
index 2d1ca488ca44..c459f937d484 100644
--- a/arch/powerpc/include/asm/book3s/64/hugetlb.h
+++ b/arch/powerpc/include/asm/book3s/64/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_HUGETLB_H
 #define _ASM_POWERPC_BOOK3S_64_HUGETLB_H
 /*
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h
index c3b00e8ff791..37fdede5a24c 100644
--- a/arch/powerpc/include/asm/book3s/64/mmu.h
+++ b/arch/powerpc/include/asm/book3s/64/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_MMU_H_
 #define _ASM_POWERPC_BOOK3S_64_MMU_H_
 
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h
index 8708a0239a56..af5f2baac80f 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H
 #define _ASM_POWERPC_BOOK3S_64_PGTABLE_4K_H
 /*
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
index 2ce4209399ed..fb4b3ba52339 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H
 #define _ASM_POWERPC_BOOK3S_64_PGTABLE_64K_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index b9aff515b4de..9a677cd5997f 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
 #define _ASM_POWERPC_BOOK3S_64_PGTABLE_H_
 
diff --git a/arch/powerpc/include/asm/book3s/64/radix-4k.h b/arch/powerpc/include/asm/book3s/64/radix-4k.h
index 7c3b1fe1619e..a61aa9cd63ec 100644
--- a/arch/powerpc/include/asm/book3s/64/radix-4k.h
+++ b/arch/powerpc/include/asm/book3s/64/radix-4k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGTABLE_RADIX_4K_H
 #define _ASM_POWERPC_PGTABLE_RADIX_4K_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/radix-64k.h b/arch/powerpc/include/asm/book3s/64/radix-64k.h
index 82dc355f0b45..c7e71ba29555 100644
--- a/arch/powerpc/include/asm/book3s/64/radix-64k.h
+++ b/arch/powerpc/include/asm/book3s/64/radix-64k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGTABLE_RADIX_64K_H
 #define _ASM_POWERPC_PGTABLE_RADIX_64K_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/radix.h b/arch/powerpc/include/asm/book3s/64/radix.h
index 1e5ba94e62ef..19c44e1495ae 100644
--- a/arch/powerpc/include/asm/book3s/64/radix.h
+++ b/arch/powerpc/include/asm/book3s/64/radix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGTABLE_RADIX_H
 #define _ASM_POWERPC_PGTABLE_RADIX_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
index 2f6373144e2c..42178897a050 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H
 #define _ASM_POWERPC_BOOK3S_64_TLBFLUSH_HASH_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
index 9b433a624bf3..c2115dfcef0c 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_TLBFLUSH_RADIX_H
 #define _ASM_POWERPC_TLBFLUSH_RADIX_H
 
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush.h b/arch/powerpc/include/asm/book3s/64/tlbflush.h
index 72b925f97bab..fcffddbb3102 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_64_TLBFLUSH_H
 #define _ASM_POWERPC_BOOK3S_64_TLBFLUSH_H
 
diff --git a/arch/powerpc/include/asm/book3s/pgalloc.h b/arch/powerpc/include/asm/book3s/pgalloc.h
index c0a69ae92256..6b178ca143e7 100644
--- a/arch/powerpc/include/asm/book3s/pgalloc.h
+++ b/arch/powerpc/include/asm/book3s/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_PGALLOC_H
 #define _ASM_POWERPC_BOOK3S_PGALLOC_H
 
diff --git a/arch/powerpc/include/asm/book3s/pgtable.h b/arch/powerpc/include/asm/book3s/pgtable.h
index 8b0f4a29259a..6436b65ac7bc 100644
--- a/arch/powerpc/include/asm/book3s/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BOOK3S_PGTABLE_H
 #define _ASM_POWERPC_BOOK3S_PGTABLE_H
 
diff --git a/arch/powerpc/include/asm/bootx.h b/arch/powerpc/include/asm/bootx.h
index dd9461003dfa..1c121f3c524f 100644
--- a/arch/powerpc/include/asm/bootx.h
+++ b/arch/powerpc/include/asm/bootx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file describes the structure passed from the BootX application
  * (for MacOS) when it is used to boot Linux.
diff --git a/arch/powerpc/include/asm/btext.h b/arch/powerpc/include/asm/btext.h
index 89fc382648bc..3ffad030393c 100644
--- a/arch/powerpc/include/asm/btext.h
+++ b/arch/powerpc/include/asm/btext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for using the procedures in btext.c.
  *
diff --git a/arch/powerpc/include/asm/bug.h b/arch/powerpc/include/asm/bug.h
index 7ee763d3bea9..3c04249bcf39 100644
--- a/arch/powerpc/include/asm/bug.h
+++ b/arch/powerpc/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_BUG_H
 #define _ASM_POWERPC_BUG_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/cache.h b/arch/powerpc/include/asm/cache.h
index d122f7f957ce..c1d257aa4c2d 100644
--- a/arch/powerpc/include/asm/cache.h
+++ b/arch/powerpc/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_CACHE_H
 #define _ASM_POWERPC_CACHE_H
 
diff --git a/arch/powerpc/include/asm/cell-regs.h b/arch/powerpc/include/asm/cell-regs.h
index fdf64fd25950..e1c431ef30e0 100644
--- a/arch/powerpc/include/asm/cell-regs.h
+++ b/arch/powerpc/include/asm/cell-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * cbe_regs.h
  *
diff --git a/arch/powerpc/include/asm/cmpxchg.h b/arch/powerpc/include/asm/cmpxchg.h
index fc46b664c49e..9b001f1f6b32 100644
--- a/arch/powerpc/include/asm/cmpxchg.h
+++ b/arch/powerpc/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_CMPXCHG_H_
 #define _ASM_POWERPC_CMPXCHG_H_
 
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index 5482928eea1b..abef812de7f8 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -83,16 +83,8 @@ static inline unsigned long ppc_function_entry(void *func)
 	 * On PPC64 ABIv1 the function pointer actually points to the
 	 * function's descriptor. The first entry in the descriptor is the
 	 * address of the function text.
-	 *
-	 * However, we may also receive pointer to an assembly symbol. To
-	 * detect that, we first check if the function pointer we receive
-	 * already points to kernel/module text and we only dereference it
-	 * if it doesn't.
 	 */
-	if (kernel_text_address((unsigned long)func))
-		return (unsigned long)func;
-	else
-		return ((func_descr_t *)func)->entry;
+	return ((func_descr_t *)func)->entry;
 #else
 	return (unsigned long)func;
 #endif
diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h
index f256e1d14a14..a035b1e5dfa7 100644
--- a/arch/powerpc/include/asm/compat.h
+++ b/arch/powerpc/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_COMPAT_H
 #define _ASM_POWERPC_COMPAT_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/context_tracking.h b/arch/powerpc/include/asm/context_tracking.h
index 40014921ffff..f2682b28b050 100644
--- a/arch/powerpc/include/asm/context_tracking.h
+++ b/arch/powerpc/include/asm/context_tracking.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_CONTEXT_TRACKING_H
 #define _ASM_POWERPC_CONTEXT_TRACKING_H
 
diff --git a/arch/powerpc/include/asm/cpm.h b/arch/powerpc/include/asm/cpm.h
index 2c5c5b476804..b925df1b87d0 100644
--- a/arch/powerpc/include/asm/cpm.h
+++ b/arch/powerpc/include/asm/cpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPM_H
 #define __CPM_H
 
diff --git a/arch/powerpc/include/asm/cpm1.h b/arch/powerpc/include/asm/cpm1.h
index 14ad37865000..3db821876d48 100644
--- a/arch/powerpc/include/asm/cpm1.h
+++ b/arch/powerpc/include/asm/cpm1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MPC8xx Communication Processor Module.
  * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
diff --git a/arch/powerpc/include/asm/cpm2.h b/arch/powerpc/include/asm/cpm2.h
index 7c8608b09694..2211b934ecb4 100644
--- a/arch/powerpc/include/asm/cpm2.h
+++ b/arch/powerpc/include/asm/cpm2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Communication Processor Module v2.
  *
diff --git a/arch/powerpc/include/asm/cpu_has_feature.h b/arch/powerpc/include/asm/cpu_has_feature.h
index 0d1df02bf99d..7897d16e0990 100644
--- a/arch/powerpc/include/asm/cpu_has_feature.h
+++ b/arch/powerpc/include/asm/cpu_has_feature.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_CPU_HAS_FEATURE_H
 #define __ASM_POWERPC_CPU_HAS_FEATURE_H
 
diff --git a/arch/powerpc/include/asm/cpuidle.h b/arch/powerpc/include/asm/cpuidle.h
index eb43b5c3a7b5..e210a83eb196 100644
--- a/arch/powerpc/include/asm/cpuidle.h
+++ b/arch/powerpc/include/asm/cpuidle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_CPUIDLE_H
 #define _ASM_POWERPC_CPUIDLE_H
 
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index a9bf921f4efc..53b31c2bcdf4 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_CPUTABLE_H
 #define __ASM_POWERPC_CPUTABLE_H
 
diff --git a/arch/powerpc/include/asm/cputhreads.h b/arch/powerpc/include/asm/cputhreads.h
index 9377bdf42eb8..d71a90924f3b 100644
--- a/arch/powerpc/include/asm/cputhreads.h
+++ b/arch/powerpc/include/asm/cputhreads.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_CPUTHREADS_H
 #define _ASM_POWERPC_CPUTHREADS_H
 
diff --git a/arch/powerpc/include/asm/dbdma.h b/arch/powerpc/include/asm/dbdma.h
index 6c69836b4ec2..4785c1716b3e 100644
--- a/arch/powerpc/include/asm/dbdma.h
+++ b/arch/powerpc/include/asm/dbdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for using the Apple Descriptor-Based DMA controller
  * in Power Macintosh computers.
diff --git a/arch/powerpc/include/asm/dcr-regs.h b/arch/powerpc/include/asm/dcr-regs.h
index 380274de429f..5c1a4973f46a 100644
--- a/arch/powerpc/include/asm/dcr-regs.h
+++ b/arch/powerpc/include/asm/dcr-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common DCR / SDR / CPR register definitions used on various IBM/AMCC
  * 4xx processors
diff --git a/arch/powerpc/include/asm/debug.h b/arch/powerpc/include/asm/debug.h
index 5d5af3fddfd8..14e71ff6579e 100644
--- a/arch/powerpc/include/asm/debug.h
+++ b/arch/powerpc/include/asm/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
  */
diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h
index eaece3d3e225..ee1e38ff1b77 100644
--- a/arch/powerpc/include/asm/dma-mapping.h
+++ b/arch/powerpc/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2004 IBM
  *
diff --git a/arch/powerpc/include/asm/dma.h b/arch/powerpc/include/asm/dma.h
index a5c6d83b5f60..1b4f0254868f 100644
--- a/arch/powerpc/include/asm/dma.h
+++ b/arch/powerpc/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_DMA_H
 #define _ASM_POWERPC_DMA_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/dt_cpu_ftrs.h b/arch/powerpc/include/asm/dt_cpu_ftrs.h
index 7a34fc11bf63..71515d909ed1 100644
--- a/arch/powerpc/include/asm/dt_cpu_ftrs.h
+++ b/arch/powerpc/include/asm/dt_cpu_ftrs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_DT_CPU_FTRS_H
 #define __ASM_POWERPC_DT_CPU_FTRS_H
 
diff --git a/arch/powerpc/include/asm/exec.h b/arch/powerpc/include/asm/exec.h
index 8196e9c7d7e8..92cac4851275 100644
--- a/arch/powerpc/include/asm/exec.h
+++ b/arch/powerpc/include/asm/exec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
  */
diff --git a/arch/powerpc/include/asm/extable.h b/arch/powerpc/include/asm/extable.h
index 07cc45cd86d9..eb91b2d2935a 100644
--- a/arch/powerpc/include/asm/extable.h
+++ b/arch/powerpc/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_POWERPC_EXTABLE_H
 #define _ARCH_POWERPC_EXTABLE_H
 
diff --git a/arch/powerpc/include/asm/fb.h b/arch/powerpc/include/asm/fb.h
index 411af8d17a69..6541ab77c5b9 100644
--- a/arch/powerpc/include/asm/fb.h
+++ b/arch/powerpc/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_FB_H_
 #define _ASM_FB_H_
 
diff --git a/arch/powerpc/include/asm/ftrace.h b/arch/powerpc/include/asm/ftrace.h
index 686c5f70eb84..9abddde372ab 100644
--- a/arch/powerpc/include/asm/ftrace.h
+++ b/arch/powerpc/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_FTRACE
 #define _ASM_POWERPC_FTRACE
 
diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h
index 719ed9b61ea7..1a944c18c539 100644
--- a/arch/powerpc/include/asm/futex.h
+++ b/arch/powerpc/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_FUTEX_H
 #define _ASM_POWERPC_FUTEX_H
 
diff --git a/arch/powerpc/include/asm/grackle.h b/arch/powerpc/include/asm/grackle.h
index bd7812a519d4..7376e3fa1570 100644
--- a/arch/powerpc/include/asm/grackle.h
+++ b/arch/powerpc/include/asm/grackle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_GRACKLE_H
 #define _ASM_POWERPC_GRACKLE_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/hardirq.h b/arch/powerpc/include/asm/hardirq.h
index c97603d617e3..456f9e7b8d83 100644
--- a/arch/powerpc/include/asm/hardirq.h
+++ b/arch/powerpc/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_HARDIRQ_H
 #define _ASM_POWERPC_HARDIRQ_H
 
diff --git a/arch/powerpc/include/asm/head-64.h b/arch/powerpc/include/asm/head-64.h
index d81eac5b509f..fdcff76e9a25 100644
--- a/arch/powerpc/include/asm/head-64.h
+++ b/arch/powerpc/include/asm/head-64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_HEAD_64_H
 #define _ASM_POWERPC_HEAD_64_H
 
diff --git a/arch/powerpc/include/asm/heathrow.h b/arch/powerpc/include/asm/heathrow.h
index 93f54958a9d1..8bc5b168762e 100644
--- a/arch/powerpc/include/asm/heathrow.h
+++ b/arch/powerpc/include/asm/heathrow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_HEATHROW_H
 #define _ASM_POWERPC_HEATHROW_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/highmem.h b/arch/powerpc/include/asm/highmem.h
index 01c2c23b307e..cec820f961da 100644
--- a/arch/powerpc/include/asm/highmem.h
+++ b/arch/powerpc/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * highmem.h: virtual kernel memory mappings for high memory
  *
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h
index b8a0fb442c64..93f98239159f 100644
--- a/arch/powerpc/include/asm/hugetlb.h
+++ b/arch/powerpc/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_HUGETLB_H
 #define _ASM_POWERPC_HUGETLB_H
 
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index 3d34dc0869f6..a409177be8bd 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_HVCALL_H
 #define _ASM_POWERPC_HVCALL_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/hvsi.h b/arch/powerpc/include/asm/hvsi.h
index d4a5315718ca..3fdc54df63c9 100644
--- a/arch/powerpc/include/asm/hvsi.h
+++ b/arch/powerpc/include/asm/hvsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _HVSI_H
 #define _HVSI_H
 
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h
index c1dd1929342d..abd04c36c251 100644
--- a/arch/powerpc/include/asm/hw_irq.h
+++ b/arch/powerpc/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
  */
diff --git a/arch/powerpc/include/asm/i8259.h b/arch/powerpc/include/asm/i8259.h
index c3fdfbd5a673..d7f08ae49e12 100644
--- a/arch/powerpc/include/asm/i8259.h
+++ b/arch/powerpc/include/asm/i8259.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_I8259_H
 #define _ASM_POWERPC_I8259_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/ide.h b/arch/powerpc/include/asm/ide.h
index da01b20aea59..ce87a4441ca3 100644
--- a/arch/powerpc/include/asm/ide.h
+++ b/arch/powerpc/include/asm/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1994-1996 Linus Torvalds & authors
  *
diff --git a/arch/powerpc/include/asm/ima.h b/arch/powerpc/include/asm/ima.h
index 2313bdface34..ead488cf3981 100644
--- a/arch/powerpc/include/asm/ima.h
+++ b/arch/powerpc/include/asm/ima.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_IMA_H
 #define _ASM_POWERPC_IMA_H
 
diff --git a/arch/powerpc/include/asm/immap_cpm2.h b/arch/powerpc/include/asm/immap_cpm2.h
index 7c64fda5357b..845d5b3fb212 100644
--- a/arch/powerpc/include/asm/immap_cpm2.h
+++ b/arch/powerpc/include/asm/immap_cpm2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CPM2 Internal Memory Map
  * Copyright (c) 1999 Dan Malek (dmalek@jlc.net)
diff --git a/arch/powerpc/include/asm/io-defs.h b/arch/powerpc/include/asm/io-defs.h
index 44d7927aec69..faf8617cc574 100644
--- a/arch/powerpc/include/asm/io-defs.h
+++ b/arch/powerpc/include/asm/io-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* This file is meant to be include multiple times by other headers */
 /* last 2 argments are used by platforms/cell/io-workarounds.[ch] */
 
diff --git a/arch/powerpc/include/asm/irq_work.h b/arch/powerpc/include/asm/irq_work.h
index 744fd54de374..c6d3078bd8c3 100644
--- a/arch/powerpc/include/asm/irq_work.h
+++ b/arch/powerpc/include/asm/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_IRQ_WORK_H
 #define _ASM_POWERPC_IRQ_WORK_H
 
diff --git a/arch/powerpc/include/asm/irqflags.h b/arch/powerpc/include/asm/irqflags.h
index f2149066fe5d..1aeb5f13b8c4 100644
--- a/arch/powerpc/include/asm/irqflags.h
+++ b/arch/powerpc/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IRQ flags handling
  */
diff --git a/arch/powerpc/include/asm/isa-bridge.h b/arch/powerpc/include/asm/isa-bridge.h
index a3a7c1d63a7c..47295894bf91 100644
--- a/arch/powerpc/include/asm/isa-bridge.h
+++ b/arch/powerpc/include/asm/isa-bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ISA_BRIDGE_H
 #define __ISA_BRIDGE_H
 
diff --git a/arch/powerpc/include/asm/kdebug.h b/arch/powerpc/include/asm/kdebug.h
index ae6d206728af..0f7c1ef37d0d 100644
--- a/arch/powerpc/include/asm/kdebug.h
+++ b/arch/powerpc/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_KDEBUG_H
 #define _ASM_POWERPC_KDEBUG_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/kdump.h b/arch/powerpc/include/asm/kdump.h
index c9776202d7ec..fd128d1e52b3 100644
--- a/arch/powerpc/include/asm/kdump.h
+++ b/arch/powerpc/include/asm/kdump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC64_KDUMP_H
 #define _PPC64_KDUMP_H
 
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index 25668bc8cb2a..4419d435639a 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_KEXEC_H
 #define _ASM_POWERPC_KEXEC_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/keylargo.h b/arch/powerpc/include/asm/keylargo.h
index 2156315d8a90..debdf548009d 100644
--- a/arch/powerpc/include/asm/keylargo.h
+++ b/arch/powerpc/include/asm/keylargo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_KEYLARGO_H
 #define _ASM_POWERPC_KEYLARGO_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/libata-portmap.h b/arch/powerpc/include/asm/libata-portmap.h
index 4396db57b8be..7c602da62560 100644
--- a/arch/powerpc/include/asm/libata-portmap.h
+++ b/arch/powerpc/include/asm/libata-portmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_LIBATA_PORTMAP_H
 #define __ASM_POWERPC_LIBATA_PORTMAP_H
 
diff --git a/arch/powerpc/include/asm/linkage.h b/arch/powerpc/include/asm/linkage.h
index 0cf5e21179fc..1f00d2891d69 100644
--- a/arch/powerpc/include/asm/linkage.h
+++ b/arch/powerpc/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_LINKAGE_H
 #define _ASM_POWERPC_LINKAGE_H
 
diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h
index b8da91363864..600a68bd77f5 100644
--- a/arch/powerpc/include/asm/local.h
+++ b/arch/powerpc/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_POWERPC_LOCAL_H
 #define _ARCH_POWERPC_LOCAL_H
 
diff --git a/arch/powerpc/include/asm/macio.h b/arch/powerpc/include/asm/macio.h
index 27af7f8bbb8d..ff5fd82d9ff0 100644
--- a/arch/powerpc/include/asm/macio.h
+++ b/arch/powerpc/include/asm/macio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACIO_ASIC_H__
 #define __MACIO_ASIC_H__
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/mediabay.h b/arch/powerpc/include/asm/mediabay.h
index 11037a4133ee..230fda4707b8 100644
--- a/arch/powerpc/include/asm/mediabay.h
+++ b/arch/powerpc/include/asm/mediabay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mediabay.h: definitions for using the media bay
  * on PowerBook 3400 and similar computers.
diff --git a/arch/powerpc/include/asm/mmu-40x.h b/arch/powerpc/include/asm/mmu-40x.h
index 34916865eaef..74f4edb5916e 100644
--- a/arch/powerpc/include/asm/mmu-40x.h
+++ b/arch/powerpc/include/asm/mmu-40x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_MMU_40X_H_
 #define _ASM_POWERPC_MMU_40X_H_
 
diff --git a/arch/powerpc/include/asm/mmu-44x.h b/arch/powerpc/include/asm/mmu-44x.h
index bf52d704fc47..cb57f29f531d 100644
--- a/arch/powerpc/include/asm/mmu-44x.h
+++ b/arch/powerpc/include/asm/mmu-44x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_MMU_44X_H_
 #define _ASM_POWERPC_MMU_44X_H_
 /*
diff --git a/arch/powerpc/include/asm/mmu-8xx.h b/arch/powerpc/include/asm/mmu-8xx.h
index 798b5bf91427..5bb3dbede41a 100644
--- a/arch/powerpc/include/asm/mmu-8xx.h
+++ b/arch/powerpc/include/asm/mmu-8xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_MMU_8XX_H_
 #define _ASM_POWERPC_MMU_8XX_H_
 /*
diff --git a/arch/powerpc/include/asm/mmu-book3e.h b/arch/powerpc/include/asm/mmu-book3e.h
index 7ca8d8e80ffa..cda94a0f5146 100644
--- a/arch/powerpc/include/asm/mmu-book3e.h
+++ b/arch/powerpc/include/asm/mmu-book3e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_MMU_BOOK3E_H_
 #define _ASM_POWERPC_MMU_BOOK3E_H_
 /*
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index 78260409dc9c..6364f5c2cc3e 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_MMU_H_
 #define _ASM_POWERPC_MMU_H_
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/mmu_context.h b/arch/powerpc/include/asm/mmu_context.h
index 309592589e30..492d8140a395 100644
--- a/arch/powerpc/include/asm/mmu_context.h
+++ b/arch/powerpc/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_MMU_CONTEXT_H
 #define __ASM_POWERPC_MMU_CONTEXT_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/mmzone.h b/arch/powerpc/include/asm/mmzone.h
index 4d52ccfc2366..91c69ff53a8a 100644
--- a/arch/powerpc/include/asm/mmzone.h
+++ b/arch/powerpc/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Kanoj Sarcar (kanoj@sgi.com) Aug 99
  *
diff --git a/arch/powerpc/include/asm/mpc6xx.h b/arch/powerpc/include/asm/mpc6xx.h
index effc2291beb2..6ed9f4ccc7b9 100644
--- a/arch/powerpc/include/asm/mpc6xx.h
+++ b/arch/powerpc/include/asm/mpc6xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_MPC6xx_H
 #define __ASM_POWERPC_MPC6xx_H
 
diff --git a/arch/powerpc/include/asm/mpc8260.h b/arch/powerpc/include/asm/mpc8260.h
index 03317e1e6185..fd8c5707425b 100644
--- a/arch/powerpc/include/asm/mpc8260.h
+++ b/arch/powerpc/include/asm/mpc8260.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Since there are many different boards and no standard configuration,
  * we have a unique include file for each.  Rather than change every
diff --git a/arch/powerpc/include/asm/mpic.h b/arch/powerpc/include/asm/mpic.h
index 98697611e7b3..fad8ddd697ac 100644
--- a/arch/powerpc/include/asm/mpic.h
+++ b/arch/powerpc/include/asm/mpic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_MPIC_H
 #define _ASM_POWERPC_MPIC_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/nmi.h b/arch/powerpc/include/asm/nmi.h
index 3760150a0ff0..e97f58689ca7 100644
--- a/arch/powerpc/include/asm/nmi.h
+++ b/arch/powerpc/include/asm/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_NMI_H
 #define _ASM_NMI_H
 
diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h
index cc369a70f2bb..d072139ff2e5 100644
--- a/arch/powerpc/include/asm/nohash/32/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGALLOC_32_H
 #define _ASM_POWERPC_PGALLOC_32_H
 
diff --git a/arch/powerpc/include/asm/nohash/32/pgtable.h b/arch/powerpc/include/asm/nohash/32/pgtable.h
index 185c6a47f9ba..cc2bfec3aa3b 100644
--- a/arch/powerpc/include/asm/nohash/32/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/32/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_32_PGTABLE_H
 #define _ASM_POWERPC_NOHASH_32_PGTABLE_H
 
diff --git a/arch/powerpc/include/asm/nohash/32/pte-40x.h b/arch/powerpc/include/asm/nohash/32/pte-40x.h
index 9624ebdacc47..124f9ac23a1e 100644
--- a/arch/powerpc/include/asm/nohash/32/pte-40x.h
+++ b/arch/powerpc/include/asm/nohash/32/pte-40x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_32_PTE_40x_H
 #define _ASM_POWERPC_NOHASH_32_PTE_40x_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/nohash/32/pte-44x.h b/arch/powerpc/include/asm/nohash/32/pte-44x.h
index 0656ff81e5b0..f812c0272364 100644
--- a/arch/powerpc/include/asm/nohash/32/pte-44x.h
+++ b/arch/powerpc/include/asm/nohash/32/pte-44x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_32_PTE_44x_H
 #define _ASM_POWERPC_NOHASH_32_PTE_44x_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/nohash/32/pte-8xx.h b/arch/powerpc/include/asm/nohash/32/pte-8xx.h
index b4df2734c078..6dc0180fd5c7 100644
--- a/arch/powerpc/include/asm/nohash/32/pte-8xx.h
+++ b/arch/powerpc/include/asm/nohash/32/pte-8xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_32_PTE_8xx_H
 #define _ASM_POWERPC_NOHASH_32_PTE_8xx_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h b/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h
index 5422d00c6145..d1ee24e9e137 100644
--- a/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h
+++ b/arch/powerpc/include/asm/nohash/32/pte-fsl-booke.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_32_PTE_FSL_BOOKE_H
 #define _ASM_POWERPC_NOHASH_32_PTE_FSL_BOOKE_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
index 9f4de0a1035e..c40ec32b8194 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable-4k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_64_PGTABLE_4K_H
 #define _ASM_POWERPC_NOHASH_64_PGTABLE_4K_H
 
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable-64k.h b/arch/powerpc/include/asm/nohash/64/pgtable-64k.h
index 1facb584dd29..7210c2818e41 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable-64k.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable-64k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_64_PGTABLE_64K_H
 #define _ASM_POWERPC_NOHASH_64_PGTABLE_64K_H
 
diff --git a/arch/powerpc/include/asm/nohash/64/pgtable.h b/arch/powerpc/include/asm/nohash/64/pgtable.h
index f0ff384d4ca5..265bbd7cba73 100644
--- a/arch/powerpc/include/asm/nohash/64/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/64/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_64_PGTABLE_H
 #define _ASM_POWERPC_NOHASH_64_PGTABLE_H
 /*
diff --git a/arch/powerpc/include/asm/nohash/pgalloc.h b/arch/powerpc/include/asm/nohash/pgalloc.h
index b39ec956d71e..0634f2949438 100644
--- a/arch/powerpc/include/asm/nohash/pgalloc.h
+++ b/arch/powerpc/include/asm/nohash/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_PGALLOC_H
 #define _ASM_POWERPC_NOHASH_PGALLOC_H
 
diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h
index 17989c3d9a24..5c68f4a59f75 100644
--- a/arch/powerpc/include/asm/nohash/pgtable.h
+++ b/arch/powerpc/include/asm/nohash/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_PGTABLE_H
 #define _ASM_POWERPC_NOHASH_PGTABLE_H
 
diff --git a/arch/powerpc/include/asm/nohash/pte-book3e.h b/arch/powerpc/include/asm/nohash/pte-book3e.h
index e16807b78edf..2da4532ca377 100644
--- a/arch/powerpc/include/asm/nohash/pte-book3e.h
+++ b/arch/powerpc/include/asm/nohash/pte-book3e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_NOHASH_PTE_BOOK3E_H
 #define _ASM_POWERPC_NOHASH_PTE_BOOK3E_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/ohare.h b/arch/powerpc/include/asm/ohare.h
index 0d030f9dea24..da3371fc348c 100644
--- a/arch/powerpc/include/asm/ohare.h
+++ b/arch/powerpc/include/asm/ohare.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_OHARE_H
 #define _ASM_POWERPC_OHARE_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/page_32.h b/arch/powerpc/include/asm/page_32.h
index 6a8e1797f223..5c378e9b78c8 100644
--- a/arch/powerpc/include/asm/page_32.h
+++ b/arch/powerpc/include/asm/page_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PAGE_32_H
 #define _ASM_POWERPC_PAGE_32_H
 
diff --git a/arch/powerpc/include/asm/parport.h b/arch/powerpc/include/asm/parport.h
index 6595ad1d18cc..8abfb8f7c33d 100644
--- a/arch/powerpc/include/asm/parport.h
+++ b/arch/powerpc/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * parport.h: platform-specific PC-style parport initialisation
  *
diff --git a/arch/powerpc/include/asm/percpu.h b/arch/powerpc/include/asm/percpu.h
index 2cedefddba37..dce863a7635c 100644
--- a/arch/powerpc/include/asm/percpu.h
+++ b/arch/powerpc/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PERCPU_H_
 #define _ASM_POWERPC_PERCPU_H_
 #ifdef __powerpc64__
diff --git a/arch/powerpc/include/asm/pgalloc.h b/arch/powerpc/include/asm/pgalloc.h
index 45ae1212ab8a..a14203c005f1 100644
--- a/arch/powerpc/include/asm/pgalloc.h
+++ b/arch/powerpc/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGALLOC_H
 #define _ASM_POWERPC_PGALLOC_H
 
diff --git a/arch/powerpc/include/asm/pgtable-be-types.h b/arch/powerpc/include/asm/pgtable-be-types.h
index 67e7e3d990f4..beb6e3e79788 100644
--- a/arch/powerpc/include/asm/pgtable-be-types.h
+++ b/arch/powerpc/include/asm/pgtable-be-types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGTABLE_BE_TYPES_H
 #define _ASM_POWERPC_PGTABLE_BE_TYPES_H
 
diff --git a/arch/powerpc/include/asm/pgtable-types.h b/arch/powerpc/include/asm/pgtable-types.h
index 369a164b545c..cfe89a6fc308 100644
--- a/arch/powerpc/include/asm/pgtable-types.h
+++ b/arch/powerpc/include/asm/pgtable-types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGTABLE_TYPES_H
 #define _ASM_POWERPC_PGTABLE_TYPES_H
 
diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h
index 7d0d38f58243..ab7d2d996be4 100644
--- a/arch/powerpc/include/asm/pgtable.h
+++ b/arch/powerpc/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PGTABLE_H
 #define _ASM_POWERPC_PGTABLE_H
 
diff --git a/arch/powerpc/include/asm/plpar_wrappers.h b/arch/powerpc/include/asm/plpar_wrappers.h
index c7b164836bc3..7f01b22fa6cb 100644
--- a/arch/powerpc/include/asm/plpar_wrappers.h
+++ b/arch/powerpc/include/asm/plpar_wrappers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_PLPAR_WRAPPERS_H
 #define _ASM_POWERPC_PLPAR_WRAPPERS_H
 
diff --git a/arch/powerpc/include/asm/pmac_pfunc.h b/arch/powerpc/include/asm/pmac_pfunc.h
index 1330d6a58c57..73bd8f28f2a8 100644
--- a/arch/powerpc/include/asm/pmac_pfunc.h
+++ b/arch/powerpc/include/asm/pmac_pfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PMAC_PFUNC_H__
 #define __PMAC_PFUNC_H__
 
diff --git a/arch/powerpc/include/asm/pte-common.h b/arch/powerpc/include/asm/pte-common.h
index 4ba26dd259fd..ce142ef99ba7 100644
--- a/arch/powerpc/include/asm/pte-common.h
+++ b/arch/powerpc/include/asm/pte-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Included from asm/pgtable-*.h only ! */
 
 /*
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index f92eaf7a4c0d..b779f3ccd412 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Contains the definition of registers common to all PowerPC variants.
  * If a register definition has been changed in a different PowerPC
diff --git a/arch/powerpc/include/asm/reg_8xx.h b/arch/powerpc/include/asm/reg_8xx.h
index ae16fef7a4d6..53a7e2955d3e 100644
--- a/arch/powerpc/include/asm/reg_8xx.h
+++ b/arch/powerpc/include/asm/reg_8xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Contains register definitions common to PowerPC 8xx CPUs.  Notice
  */
diff --git a/arch/powerpc/include/asm/reg_fsl_emb.h b/arch/powerpc/include/asm/reg_fsl_emb.h
index 0e3ddf5177f6..d7ccf93e6279 100644
--- a/arch/powerpc/include/asm/reg_fsl_emb.h
+++ b/arch/powerpc/include/asm/reg_fsl_emb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Contains register definitions for the Freescale Embedded Performance
  * Monitor.
diff --git a/arch/powerpc/include/asm/runlatch.h b/arch/powerpc/include/asm/runlatch.h
index 54e9b963876e..cfb390edf7d0 100644
--- a/arch/powerpc/include/asm/runlatch.h
+++ b/arch/powerpc/include/asm/runlatch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
  */
diff --git a/arch/powerpc/include/asm/seccomp.h b/arch/powerpc/include/asm/seccomp.h
index c1818e35cf02..51209f6071c5 100644
--- a/arch/powerpc/include/asm/seccomp.h
+++ b/arch/powerpc/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SECCOMP_H
 #define _ASM_POWERPC_SECCOMP_H
 
diff --git a/arch/powerpc/include/asm/sections.h b/arch/powerpc/include/asm/sections.h
index 7902d6358854..82bec63bbd4f 100644
--- a/arch/powerpc/include/asm/sections.h
+++ b/arch/powerpc/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SECTIONS_H
 #define _ASM_POWERPC_SECTIONS_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index 3a3fb0ca68f5..257d23dbf55d 100644
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SETUP_H
 #define _ASM_POWERPC_SETUP_H
 
diff --git a/arch/powerpc/include/asm/shmparam.h b/arch/powerpc/include/asm/shmparam.h
index 5cda42a6d39e..bc0968839565 100644
--- a/arch/powerpc/include/asm/shmparam.h
+++ b/arch/powerpc/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SHMPARAM_H
 #define _ASM_POWERPC_SHMPARAM_H
 
diff --git a/arch/powerpc/include/asm/signal.h b/arch/powerpc/include/asm/signal.h
index 5ff77722a52d..0803ca8b9149 100644
--- a/arch/powerpc/include/asm/signal.h
+++ b/arch/powerpc/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SIGNAL_H
 #define _ASM_POWERPC_SIGNAL_H
 
diff --git a/arch/powerpc/include/asm/smu.h b/arch/powerpc/include/asm/smu.h
index 09f98e861869..8dff086c0cab 100644
--- a/arch/powerpc/include/asm/smu.h
+++ b/arch/powerpc/include/asm/smu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SMU_H
 #define _SMU_H
 
diff --git a/arch/powerpc/include/asm/sparsemem.h b/arch/powerpc/include/asm/sparsemem.h
index c88930c9db7f..a7916ee6dfb6 100644
--- a/arch/powerpc/include/asm/sparsemem.h
+++ b/arch/powerpc/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SPARSEMEM_H
 #define _ASM_POWERPC_SPARSEMEM_H 1
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h
index edbe571bcc54..b9ebc3085fb7 100644
--- a/arch/powerpc/include/asm/spinlock.h
+++ b/arch/powerpc/include/asm/spinlock.h
@@ -161,6 +161,7 @@ void arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
 		local_irq_restore(flags_dis);
 	}
 }
+#define arch_spin_lock_flags arch_spin_lock_flags
 
 static inline void arch_spin_unlock(arch_spinlock_t *lock)
 {
@@ -181,9 +182,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
  * read-locks.
  */
 
-#define arch_read_can_lock(rw)		((rw)->lock >= 0)
-#define arch_write_can_lock(rw)	(!(rw)->lock)
-
 #ifdef CONFIG_PPC64
 #define __DO_SIGN_EXTEND	"extsw	%0,%0\n"
 #define WRLOCK_TOKEN		LOCK_TOKEN	/* it's negative */
@@ -302,9 +300,6 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 	rw->lock = 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #define arch_spin_relax(lock)	__spin_yield(lock)
 #define arch_read_relax(lock)	__rw_yield(lock)
 #define arch_write_relax(lock)	__rw_yield(lock)
diff --git a/arch/powerpc/include/asm/spinlock_types.h b/arch/powerpc/include/asm/spinlock_types.h
index 2351adc4fdc4..87adaf13b7e8 100644
--- a/arch/powerpc/include/asm/spinlock_types.h
+++ b/arch/powerpc/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SPINLOCK_TYPES_H
 #define _ASM_POWERPC_SPINLOCK_TYPES_H
 
diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h
index cc9addefb51c..d98ac188cedb 100644
--- a/arch/powerpc/include/asm/string.h
+++ b/arch/powerpc/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_STRING_H
 #define _ASM_POWERPC_STRING_H
 
diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index 17c8380673a6..bf820f53e27e 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Cort Dougan <cort@cs.nmt.edu>
  */
diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h
index 78efe8d5d775..63e7f5a1f105 100644
--- a/arch/powerpc/include/asm/synch.h
+++ b/arch/powerpc/include/asm/synch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_SYNCH_H 
 #define _ASM_POWERPC_SYNCH_H 
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/syscalls.h b/arch/powerpc/include/asm/syscalls.h
index 16fab6898240..1b90a3516a35 100644
--- a/arch/powerpc/include/asm/syscalls.h
+++ b/arch/powerpc/include/asm/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_POWERPC_SYSCALLS_H
 #define __ASM_POWERPC_SYSCALLS_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 1c9470881c4a..449912f057f6 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * List of powerpc syscalls. For the meaning of the _SPU suffix see
  * arch/powerpc/platforms/cell/spu_callbacks.c
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index a941cc6fc3e9..a264c3ad366b 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: PowerPC low-level thread information
  * adapted from the i386 version by Paul Mackerras
  *
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index cb61eae5b7ed..926b9f91a3ef 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_TIMEX_H
 #define _ASM_POWERPC_TIMEX_H
 
diff --git a/arch/powerpc/include/asm/tm.h b/arch/powerpc/include/asm/tm.h
index 82e06ca3a49b..a8bc72a7f4be 100644
--- a/arch/powerpc/include/asm/tm.h
+++ b/arch/powerpc/include/asm/tm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Transactional memory support routines to reclaim and recheckpoint
  * transactional process state.
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index 2d84bca8d053..023ff9f17501 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_TOPOLOGY_H
 #define _ASM_POWERPC_TOPOLOGY_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/include/asm/trace.h b/arch/powerpc/include/asm/trace.h
index 18f168aebae3..33f3b479138b 100644
--- a/arch/powerpc/include/asm/trace.h
+++ b/arch/powerpc/include/asm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM powerpc
 
diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h
index 9c0e60ca1666..11f4bd07cce0 100644
--- a/arch/powerpc/include/asm/uaccess.h
+++ b/arch/powerpc/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_POWERPC_UACCESS_H
 #define _ARCH_POWERPC_UACCESS_H
 
diff --git a/arch/powerpc/include/asm/unaligned.h b/arch/powerpc/include/asm/unaligned.h
index 8296381ae432..ce69c5eff95e 100644
--- a/arch/powerpc/include/asm/unaligned.h
+++ b/arch/powerpc/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_UNALIGNED_H
 #define _ASM_POWERPC_UNALIGNED_H
 
diff --git a/arch/powerpc/include/asm/uninorth.h b/arch/powerpc/include/asm/uninorth.h
index a1d112979fd2..e278299b9b37 100644
--- a/arch/powerpc/include/asm/uninorth.h
+++ b/arch/powerpc/include/asm/uninorth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * uninorth.h: definitions for using the "UniNorth" host bridge chip
  *             from Apple. This chip is used on "Core99" machines
diff --git a/arch/powerpc/include/asm/user.h b/arch/powerpc/include/asm/user.h
index 3fd4545dd74e..5c0e082eae7b 100644
--- a/arch/powerpc/include/asm/user.h
+++ b/arch/powerpc/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_USER_H
 #define _ASM_POWERPC_USER_H
 
diff --git a/arch/powerpc/include/asm/vdso.h b/arch/powerpc/include/asm/vdso.h
index c53f5f6d1761..b5e1f8f8a05c 100644
--- a/arch/powerpc/include/asm/vdso.h
+++ b/arch/powerpc/include/asm/vdso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PPC64_VDSO_H__
 #define __PPC64_VDSO_H__
 
diff --git a/arch/powerpc/include/asm/vga.h b/arch/powerpc/include/asm/vga.h
index 7a7b541b7493..fcf721682a71 100644
--- a/arch/powerpc/include/asm/vga.h
+++ b/arch/powerpc/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_POWERPC_VGA_H_
 #define _ASM_POWERPC_VGA_H_
 
diff --git a/arch/powerpc/include/asm/xics.h b/arch/powerpc/include/asm/xics.h
index 7ce2c3ac2964..8e903b3f9c24 100644
--- a/arch/powerpc/include/asm/xics.h
+++ b/arch/powerpc/include/asm/xics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common definitions across all variants of ICP and ICS interrupt
  * controllers.
diff --git a/arch/powerpc/include/uapi/asm/auxvec.h b/arch/powerpc/include/uapi/asm/auxvec.h
index be6e94ecec42..7af21dc0e320 100644
--- a/arch/powerpc/include/uapi/asm/auxvec.h
+++ b/arch/powerpc/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_AUXVEC_H
 #define _ASM_POWERPC_AUXVEC_H
 
diff --git a/arch/powerpc/include/uapi/asm/bitsperlong.h b/arch/powerpc/include/uapi/asm/bitsperlong.h
index 5f1659032c40..46ece3ecff31 100644
--- a/arch/powerpc/include/uapi/asm/bitsperlong.h
+++ b/arch/powerpc/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_POWERPC_BITSPERLONG_H
 #define __ASM_POWERPC_BITSPERLONG_H
 
diff --git a/arch/powerpc/include/uapi/asm/bootx.h b/arch/powerpc/include/uapi/asm/bootx.h
index 6e51cf0708a1..6728c7e24e58 100644
--- a/arch/powerpc/include/uapi/asm/bootx.h
+++ b/arch/powerpc/include/uapi/asm/bootx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file describes the structure passed from the BootX application
  * (for MacOS) when it is used to boot Linux.
diff --git a/arch/powerpc/include/uapi/asm/byteorder.h b/arch/powerpc/include/uapi/asm/byteorder.h
index ca931d074000..8ef66f7d9db9 100644
--- a/arch/powerpc/include/uapi/asm/byteorder.h
+++ b/arch/powerpc/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_BYTEORDER_H
 #define _ASM_POWERPC_BYTEORDER_H
 
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h
index 4d877144f377..50bcb4295de4 100644
--- a/arch/powerpc/include/uapi/asm/cputable.h
+++ b/arch/powerpc/include/uapi/asm/cputable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_POWERPC_CPUTABLE_H
 #define _UAPI__ASM_POWERPC_CPUTABLE_H
 
diff --git a/arch/powerpc/include/uapi/asm/eeh.h b/arch/powerpc/include/uapi/asm/eeh.h
index 291b7d1814a6..28186071fafc 100644
--- a/arch/powerpc/include/uapi/asm/eeh.h
+++ b/arch/powerpc/include/uapi/asm/eeh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2, as
diff --git a/arch/powerpc/include/uapi/asm/elf.h b/arch/powerpc/include/uapi/asm/elf.h
index b2c6fdd5ac30..5f201d40bcca 100644
--- a/arch/powerpc/include/uapi/asm/elf.h
+++ b/arch/powerpc/include/uapi/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * ELF register definitions..
  *
diff --git a/arch/powerpc/include/uapi/asm/epapr_hcalls.h b/arch/powerpc/include/uapi/asm/epapr_hcalls.h
index b4504f394427..90a0ee6d0bb3 100644
--- a/arch/powerpc/include/uapi/asm/epapr_hcalls.h
+++ b/arch/powerpc/include/uapi/asm/epapr_hcalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * ePAPR hcall interface
  *
diff --git a/arch/powerpc/include/uapi/asm/errno.h b/arch/powerpc/include/uapi/asm/errno.h
index e8b6b5f7de7c..cc79856896a1 100644
--- a/arch/powerpc/include/uapi/asm/errno.h
+++ b/arch/powerpc/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_ERRNO_H
 #define _ASM_POWERPC_ERRNO_H
 
diff --git a/arch/powerpc/include/uapi/asm/fcntl.h b/arch/powerpc/include/uapi/asm/fcntl.h
index ce5c4516d404..65ce08322a89 100644
--- a/arch/powerpc/include/uapi/asm/fcntl.h
+++ b/arch/powerpc/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_FCNTL_H
 #define _ASM_FCNTL_H
 
diff --git a/arch/powerpc/include/uapi/asm/ioctl.h b/arch/powerpc/include/uapi/asm/ioctl.h
index 57d68304218b..d623af4b9cd6 100644
--- a/arch/powerpc/include/uapi/asm/ioctl.h
+++ b/arch/powerpc/include/uapi/asm/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_IOCTL_H
 #define _ASM_POWERPC_IOCTL_H
 
diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index e3b10469f787..41b1a5c15734 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_IOCTLS_H
 #define _ASM_POWERPC_IOCTLS_H
 
diff --git a/arch/powerpc/include/uapi/asm/ipcbuf.h b/arch/powerpc/include/uapi/asm/ipcbuf.h
index 2c3e1d94db1d..21e1e0ec0ba2 100644
--- a/arch/powerpc/include/uapi/asm/ipcbuf.h
+++ b/arch/powerpc/include/uapi/asm/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_IPCBUF_H
 #define _ASM_POWERPC_IPCBUF_H
 
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 8cf8f0c96906..61d6049f4c1e 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2, as
diff --git a/arch/powerpc/include/uapi/asm/kvm_para.h b/arch/powerpc/include/uapi/asm/kvm_para.h
index 91e42f09b323..01555c6ae0f5 100644
--- a/arch/powerpc/include/uapi/asm/kvm_para.h
+++ b/arch/powerpc/include/uapi/asm/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2, as
diff --git a/arch/powerpc/include/uapi/asm/mman.h b/arch/powerpc/include/uapi/asm/mman.h
index 03c06ba7464f..e63bc37e33af 100644
--- a/arch/powerpc/include/uapi/asm/mman.h
+++ b/arch/powerpc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/arch/powerpc/include/uapi/asm/msgbuf.h b/arch/powerpc/include/uapi/asm/msgbuf.h
index dd76743c7537..65beb0942500 100644
--- a/arch/powerpc/include/uapi/asm/msgbuf.h
+++ b/arch/powerpc/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_MSGBUF_H
 #define _ASM_POWERPC_MSGBUF_H
 
diff --git a/arch/powerpc/include/uapi/asm/nvram.h b/arch/powerpc/include/uapi/asm/nvram.h
index 608bdc8aedd1..c92c7f056a91 100644
--- a/arch/powerpc/include/uapi/asm/nvram.h
+++ b/arch/powerpc/include/uapi/asm/nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * NVRAM definitions and access functions.
  *
diff --git a/arch/powerpc/include/uapi/asm/opal-prd.h b/arch/powerpc/include/uapi/asm/opal-prd.h
index 319ff4a26158..1869cf83a870 100644
--- a/arch/powerpc/include/uapi/asm/opal-prd.h
+++ b/arch/powerpc/include/uapi/asm/opal-prd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * OPAL Runtime Diagnostics interface driver
  * Supported on POWERNV platform
diff --git a/arch/powerpc/include/uapi/asm/perf_event.h b/arch/powerpc/include/uapi/asm/perf_event.h
index 80a4d40cf5bc..ce488e48db44 100644
--- a/arch/powerpc/include/uapi/asm/perf_event.h
+++ b/arch/powerpc/include/uapi/asm/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2013 Michael Ellerman, IBM Corp.
  *
diff --git a/arch/powerpc/include/uapi/asm/perf_regs.h b/arch/powerpc/include/uapi/asm/perf_regs.h
index 6a93209748a1..9e52c86ccbd3 100644
--- a/arch/powerpc/include/uapi/asm/perf_regs.h
+++ b/arch/powerpc/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_POWERPC_PERF_REGS_H
 #define _UAPI_ASM_POWERPC_PERF_REGS_H
 
diff --git a/arch/powerpc/include/uapi/asm/posix_types.h b/arch/powerpc/include/uapi/asm/posix_types.h
index 2958c5b97b2d..f698400e4bb0 100644
--- a/arch/powerpc/include/uapi/asm/posix_types.h
+++ b/arch/powerpc/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_POSIX_TYPES_H
 #define _ASM_POWERPC_POSIX_TYPES_H
 
diff --git a/arch/powerpc/include/uapi/asm/ps3fb.h b/arch/powerpc/include/uapi/asm/ps3fb.h
index e7233a849680..fd7e3a0d35d5 100644
--- a/arch/powerpc/include/uapi/asm/ps3fb.h
+++ b/arch/powerpc/include/uapi/asm/ps3fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2006 Sony Computer Entertainment Inc.
  * Copyright 2006, 2007 Sony Corporation
diff --git a/arch/powerpc/include/uapi/asm/ptrace.h b/arch/powerpc/include/uapi/asm/ptrace.h
index 8036b385417d..5e3edc2a7634 100644
--- a/arch/powerpc/include/uapi/asm/ptrace.h
+++ b/arch/powerpc/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2001 PPC64 Team, IBM Corp
  *
diff --git a/arch/powerpc/include/uapi/asm/sembuf.h b/arch/powerpc/include/uapi/asm/sembuf.h
index 99a41938ae3d..8f393d60f02d 100644
--- a/arch/powerpc/include/uapi/asm/sembuf.h
+++ b/arch/powerpc/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_SEMBUF_H
 #define _ASM_POWERPC_SEMBUF_H
 
diff --git a/arch/powerpc/include/uapi/asm/setup.h b/arch/powerpc/include/uapi/asm/setup.h
index ae3fb68cb28e..c54940b09d06 100644
--- a/arch/powerpc/include/uapi/asm/setup.h
+++ b/arch/powerpc/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_POWERPC_SETUP_H
 #define _UAPI_ASM_POWERPC_SETUP_H
 
diff --git a/arch/powerpc/include/uapi/asm/shmbuf.h b/arch/powerpc/include/uapi/asm/shmbuf.h
index 8efa39698b6c..deb1c3e503d3 100644
--- a/arch/powerpc/include/uapi/asm/shmbuf.h
+++ b/arch/powerpc/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_SHMBUF_H
 #define _ASM_POWERPC_SHMBUF_H
 
diff --git a/arch/powerpc/include/uapi/asm/sigcontext.h b/arch/powerpc/include/uapi/asm/sigcontext.h
index 3ad0c7f001a9..2fbe485acdb4 100644
--- a/arch/powerpc/include/uapi/asm/sigcontext.h
+++ b/arch/powerpc/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_SIGCONTEXT_H
 #define _ASM_POWERPC_SIGCONTEXT_H
 
diff --git a/arch/powerpc/include/uapi/asm/siginfo.h b/arch/powerpc/include/uapi/asm/siginfo.h
index ccce3ef5cd86..1a691141e49f 100644
--- a/arch/powerpc/include/uapi/asm/siginfo.h
+++ b/arch/powerpc/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_SIGINFO_H
 #define _ASM_POWERPC_SIGINFO_H
 
diff --git a/arch/powerpc/include/uapi/asm/signal.h b/arch/powerpc/include/uapi/asm/signal.h
index 6c69ee94fd8d..85b0a7aa43e7 100644
--- a/arch/powerpc/include/uapi/asm/signal.h
+++ b/arch/powerpc/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_POWERPC_SIGNAL_H
 #define _UAPI_ASM_POWERPC_SIGNAL_H
 
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index 3c590c7c42c0..94de465e0920 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_SOCKET_H
 #define _ASM_POWERPC_SOCKET_H
 
diff --git a/arch/powerpc/include/uapi/asm/spu_info.h b/arch/powerpc/include/uapi/asm/spu_info.h
index ed071bf97707..cabfcbba9eac 100644
--- a/arch/powerpc/include/uapi/asm/spu_info.h
+++ b/arch/powerpc/include/uapi/asm/spu_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * SPU info structures
  *
diff --git a/arch/powerpc/include/uapi/asm/stat.h b/arch/powerpc/include/uapi/asm/stat.h
index 84880b80cc1c..afd25f2ff4e8 100644
--- a/arch/powerpc/include/uapi/asm/stat.h
+++ b/arch/powerpc/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_STAT_H
 #define _ASM_POWERPC_STAT_H
 /*
diff --git a/arch/powerpc/include/uapi/asm/swab.h b/arch/powerpc/include/uapi/asm/swab.h
index b6c368aa5c05..17b16c44d20c 100644
--- a/arch/powerpc/include/uapi/asm/swab.h
+++ b/arch/powerpc/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/arch/powerpc/include/uapi/asm/termbits.h b/arch/powerpc/include/uapi/asm/termbits.h
index 549d700e18f2..ed18bc61f63d 100644
--- a/arch/powerpc/include/uapi/asm/termbits.h
+++ b/arch/powerpc/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_TERMBITS_H
 #define _ASM_POWERPC_TERMBITS_H
 
diff --git a/arch/powerpc/include/uapi/asm/termios.h b/arch/powerpc/include/uapi/asm/termios.h
index 6cca5cdfec04..5d07fc89bcb6 100644
--- a/arch/powerpc/include/uapi/asm/termios.h
+++ b/arch/powerpc/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Liberally adapted from alpha/termios.h.  In particular, the c_cc[]
  * fields have been reordered so that termio & termios share the
diff --git a/arch/powerpc/include/uapi/asm/tm.h b/arch/powerpc/include/uapi/asm/tm.h
index 5047659815a5..e1bf0e2fac43 100644
--- a/arch/powerpc/include/uapi/asm/tm.h
+++ b/arch/powerpc/include/uapi/asm/tm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_TM_H
 #define _ASM_POWERPC_TM_H
 
diff --git a/arch/powerpc/include/uapi/asm/types.h b/arch/powerpc/include/uapi/asm/types.h
index 4b8ab990a3c1..327616fb70e4 100644
--- a/arch/powerpc/include/uapi/asm/types.h
+++ b/arch/powerpc/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * This file is never included by application software unless
  * explicitly requested (e.g., via linux/types.h) in which case the
diff --git a/arch/powerpc/include/uapi/asm/ucontext.h b/arch/powerpc/include/uapi/asm/ucontext.h
index d9a4ddf0cc86..6f14a96d4985 100644
--- a/arch/powerpc/include/uapi/asm/ucontext.h
+++ b/arch/powerpc/include/uapi/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_POWERPC_UCONTEXT_H
 #define _ASM_POWERPC_UCONTEXT_H
 
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index b85f14228857..df8684f31919 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * This file contains the system call numbers.
  *
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 91960f83039c..6c6cce937dd8 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 26b9994d27ee..3e6c0744c174 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -332,7 +332,7 @@ int fix_alignment(struct pt_regs *regs)
 	 * when pasting to a co-processor. Furthermore, paste_last is the
 	 * synchronisation point for preceding copy/paste sequences.
 	 */
-	if ((instr & 0xfc0006fe) == PPC_INST_COPY)
+	if ((instr & 0xfc0006fe) == (PPC_INST_COPY & 0xfc0006fe))
 		return -EIO;
 
 	r = analyse_instr(&op, regs, instr);
@@ -341,7 +341,7 @@ int fix_alignment(struct pt_regs *regs)
 
 	type = op.type & INSTR_TYPE_MASK;
 	if (!OP_IS_LOAD_STORE(type)) {
-		if (type != CACHEOP + DCBZ)
+		if (op.type != CACHEOP + DCBZ)
 			return -EINVAL;
 		PPC_WARN_ALIGNMENT(dcbz, regs);
 		r = emulate_dcbz(op.ea, regs);
diff --git a/arch/powerpc/kernel/audit.c b/arch/powerpc/kernel/audit.c
index a4dab7cab348..a2dddd7f3d09 100644
--- a/arch/powerpc/kernel/audit.c
+++ b/arch/powerpc/kernel/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 3f46ca1c59f9..6537cba1a758 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Procedures for drawing on the screen early on in the boot process.
  *
diff --git a/arch/powerpc/kernel/cacheinfo.h b/arch/powerpc/kernel/cacheinfo.h
index a7b74d36acd7..955f5e999f1b 100644
--- a/arch/powerpc/kernel/cacheinfo.h
+++ b/arch/powerpc/kernel/cacheinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_CACHEINFO_H
 #define _PPC_CACHEINFO_H
 
diff --git a/arch/powerpc/kernel/compat_audit.c b/arch/powerpc/kernel/compat_audit.c
index 108ff14e2122..55c6ccda0a85 100644
--- a/arch/powerpc/kernel/compat_audit.c
+++ b/arch/powerpc/kernel/compat_audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef __powerpc64__
 #include <asm/unistd.h>
 
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 8f7abf9baa63..66f33e7f8d40 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corporation
  *
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c
index 1df770e8cbe0..7275fed271af 100644
--- a/arch/powerpc/kernel/dt_cpu_ftrs.c
+++ b/arch/powerpc/kernel/dt_cpu_ftrs.c
@@ -102,10 +102,10 @@ static void cpufeatures_flush_tlb(void)
 	case PVR_POWER8:
 	case PVR_POWER8E:
 	case PVR_POWER8NVL:
-		__flush_tlb_power8(POWER8_TLB_SETS);
+		__flush_tlb_power8(TLB_INVAL_SCOPE_GLOBAL);
 		break;
 	case PVR_POWER9:
-		__flush_tlb_power9(POWER9_TLB_SETS_HASH);
+		__flush_tlb_power9(TLB_INVAL_SCOPE_GLOBAL);
 		break;
 	default:
 		pr_err("unknown CPU version for boot TLB flush\n");
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 9e816787c0d4..116000b45531 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -1019,6 +1019,10 @@ int eeh_init(void)
 	} else if ((ret = eeh_ops->init()))
 		return ret;
 
+	/* Initialize PHB PEs */
+	list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
+		eeh_dev_phb_init_dynamic(hose);
+
 	/* Initialize EEH event */
 	ret = eeh_event_init();
 	if (ret)
diff --git a/arch/powerpc/kernel/eeh_dev.c b/arch/powerpc/kernel/eeh_dev.c
index ad04ecd63c20..a34e6912c15e 100644
--- a/arch/powerpc/kernel/eeh_dev.c
+++ b/arch/powerpc/kernel/eeh_dev.c
@@ -78,21 +78,3 @@ void eeh_dev_phb_init_dynamic(struct pci_controller *phb)
 	/* EEH PE for PHB */
 	eeh_phb_pe_create(phb);
 }
-
-/**
- * eeh_dev_phb_init - Create EEH devices for devices included in existing PHBs
- *
- * Scan all the existing PHBs and create EEH devices for their OF
- * nodes and their children OF nodes
- */
-static int __init eeh_dev_phb_init(void)
-{
-	struct pci_controller *phb, *tmp;
-
-	list_for_each_entry_safe(phb, tmp, &hose_list, list_node)
-		eeh_dev_phb_init_dynamic(phb);
-
-	return 0;
-}
-
-core_initcall(eeh_dev_phb_init);
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 48da0f5d2f7f..1c80bd292e48 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains the 64-bit "server" PowerPC variant
  * of the low level exception handling including exception
@@ -734,7 +735,29 @@ EXC_REAL(program_check, 0x700, 0x100)
 EXC_VIRT(program_check, 0x4700, 0x100, 0x700)
 TRAMP_KVM(PACA_EXGEN, 0x700)
 EXC_COMMON_BEGIN(program_check_common)
-	EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
+	/*
+	 * It's possible to receive a TM Bad Thing type program check with
+	 * userspace register values (in particular r1), but with SRR1 reporting
+	 * that we came from the kernel. Normally that would confuse the bad
+	 * stack logic, and we would report a bad kernel stack pointer. Instead
+	 * we switch to the emergency stack if we're taking a TM Bad Thing from
+	 * the kernel.
+	 */
+	li	r10,MSR_PR		/* Build a mask of MSR_PR ..	*/
+	oris	r10,r10,0x200000@h	/* .. and SRR1_PROGTM		*/
+	and	r10,r10,r12		/* Mask SRR1 with that.		*/
+	srdi	r10,r10,8		/* Shift it so we can compare	*/
+	cmpldi	r10,(0x200000 >> 8)	/* .. with an immediate.	*/
+	bne 1f				/* If != go to normal path.	*/
+
+	/* SRR1 had PR=0 and SRR1_PROGTM=1, so use the emergency stack	*/
+	andi.	r10,r12,MSR_PR;		/* Set CR0 correctly for label	*/
+					/* 3 in EXCEPTION_PROLOG_COMMON	*/
+	mr	r10,r1			/* Save r1			*/
+	ld	r1,PACAEMERGSP(r13)	/* Use emergency stack		*/
+	subi	r1,r1,INT_FRAME_SIZE	/* alloc stack frame		*/
+	b 3f				/* Jump into the macro !!	*/
+1:	EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
 	bl	save_nvgprs
 	RECONCILE_IRQ_STATE(r10, r11)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
diff --git a/arch/powerpc/kernel/fsl_booke_entry_mapping.S b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
index 83dd0f6776b3..ea065282b303 100644
--- a/arch/powerpc/kernel/fsl_booke_entry_mapping.S
+++ b/arch/powerpc/kernel/fsl_booke_entry_mapping.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* 1. Find the index of the entry we're executing in */
 	bl	invstr				/* Find our address */
diff --git a/arch/powerpc/kernel/head_booke.h b/arch/powerpc/kernel/head_booke.h
index a620203f7de3..d0862a100d29 100644
--- a/arch/powerpc/kernel/head_booke.h
+++ b/arch/powerpc/kernel/head_booke.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HEAD_BOOKE_H__
 #define __HEAD_BOOKE_H__
 
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index a1854d1ded8b..aab456ed2a00 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ppc64 "iomap" interface implementation.
  *
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 367494dc67d9..bebc3007a793 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -600,7 +600,12 @@ NOKPROBE_SYMBOL(kprobe_fault_handler);
 
 unsigned long arch_deref_entry_point(void *entry)
 {
-	return ppc_global_function_entry(entry);
+#ifdef PPC64_ELF_ABI_v1
+	if (!kernel_text_address((unsigned long)entry))
+		return ppc_global_function_entry(entry);
+	else
+#endif
+		return (unsigned long)entry;
 }
 NOKPROBE_SYMBOL(arch_deref_entry_point);
 
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 5e5a64a8b4e4..33b34a58fc62 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
diff --git a/arch/powerpc/kernel/machine_kexec_file_64.c b/arch/powerpc/kernel/machine_kexec_file_64.c
index 992c0d258e5d..e4395f937d63 100644
--- a/arch/powerpc/kernel/machine_kexec_file_64.c
+++ b/arch/powerpc/kernel/machine_kexec_file_64.c
@@ -91,11 +91,13 @@ int arch_kimage_file_post_load_cleanup(struct kimage *image)
  * and that value will be returned. If all free regions are visited without
  * func returning non-zero, then zero will be returned.
  */
-int arch_kexec_walk_mem(struct kexec_buf *kbuf, int (*func)(u64, u64, void *))
+int arch_kexec_walk_mem(struct kexec_buf *kbuf,
+			int (*func)(struct resource *, void *))
 {
 	int ret = 0;
 	u64 i;
 	phys_addr_t mstart, mend;
+	struct resource res = { };
 
 	if (kbuf->top_down) {
 		for_each_free_mem_range_reverse(i, NUMA_NO_NODE, 0,
@@ -105,7 +107,9 @@ int arch_kexec_walk_mem(struct kexec_buf *kbuf, int (*func)(u64, u64, void *))
 			 * range while in kexec, end points to the last byte
 			 * in the range.
 			 */
-			ret = func(mstart, mend - 1, kbuf);
+			res.start = mstart;
+			res.end = mend - 1;
+			ret = func(&res, kbuf);
 			if (ret)
 				break;
 		}
@@ -117,7 +121,9 @@ int arch_kexec_walk_mem(struct kexec_buf *kbuf, int (*func)(u64, u64, void *))
 			 * range while in kexec, end points to the last byte
 			 * in the range.
 			 */
-			ret = func(mstart, mend - 1, kbuf);
+			res.start = mstart;
+			res.end = mend - 1;
+			ret = func(&res, kbuf);
 			if (ret)
 				break;
 		}
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index b76ca198e09c..72f153c6f3fa 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -624,5 +624,18 @@ long __machine_check_early_realmode_p8(struct pt_regs *regs)
 
 long __machine_check_early_realmode_p9(struct pt_regs *regs)
 {
+	/*
+	 * On POWER9 DD2.1 and below, it's possible to get a machine check
+	 * caused by a paste instruction where only DSISR bit 25 is set. This
+	 * will result in the MCE handler seeing an unknown event and the kernel
+	 * crashing. An MCE that occurs like this is spurious, so we don't need
+	 * to do anything in terms of servicing it. If there is something that
+	 * needs to be serviced, the CPU will raise the MCE again with the
+	 * correct DSISR so that it can be serviced properly. So detect this
+	 * case and mark it as handled.
+	 */
+	if (SRR1_MC_LOADSTORE(regs->msr) && regs->dsisr == 0x02000000)
+		return 1;
+
 	return mce_handle_error(regs, mce_p9_derror_table, mce_p9_ierror_table);
 }
diff --git a/arch/powerpc/kernel/optprobes.c b/arch/powerpc/kernel/optprobes.c
index 6f8273f5e988..91e037ab20a1 100644
--- a/arch/powerpc/kernel/optprobes.c
+++ b/arch/powerpc/kernel/optprobes.c
@@ -104,8 +104,10 @@ static unsigned long can_optimize(struct kprobe *p)
 	 * and that can be emulated.
 	 */
 	if (!is_conditional_branch(*p->ainsn.insn) &&
-			analyse_instr(&op, &regs, *p->ainsn.insn))
+			analyse_instr(&op, &regs, *p->ainsn.insn) == 1) {
+		emulate_update_regs(&regs, &op);
 		nip = regs.nip;
+	}
 
 	return nip;
 }
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 6295e646f78c..9cb7f88df563 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef DEBUG
 
 #include <linux/kernel.h>
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 07cd22e35405..f52ad5bb7109 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -131,7 +131,7 @@ static void flush_tmregs_to_thread(struct task_struct *tsk)
 	 * in the appropriate thread structures from live.
 	 */
 
-	if (tsk != current)
+	if ((!cpu_has_feature(CPU_FTR_TM)) || (tsk != current))
 		return;
 
 	if (MSR_TM_SUSPENDED(mfmsr())) {
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index df56dfc4b681..c8c5f3a550c2 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *   Copyright (C) 2000 Tilmann Bitterberg
  *   (tilmann@bitterberg.de)
diff --git a/arch/powerpc/kernel/rtas-rtc.c b/arch/powerpc/kernel/rtas-rtc.c
index c57c19358a26..49600985c7ef 100644
--- a/arch/powerpc/kernel/rtas-rtc.c
+++ b/arch/powerpc/kernel/rtas-rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/time.h>
 #include <linux/timer.h>
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index b8a4987f58cf..3f1c4fcbe0aa 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -78,7 +78,7 @@ static unsigned long lock_rtas(void)
 
 	local_irq_save(flags);
 	preempt_disable();
-	arch_spin_lock_flags(&rtas.lock, flags);
+	arch_spin_lock(&rtas.lock);
 	return flags;
 }
 
@@ -914,7 +914,7 @@ int rtas_online_cpus_mask(cpumask_var_t cpus)
 	if (ret) {
 		cpumask_var_t tmp_mask;
 
-		if (!alloc_cpumask_var(&tmp_mask, GFP_TEMPORARY))
+		if (!alloc_cpumask_var(&tmp_mask, GFP_KERNEL))
 			return ret;
 
 		/* Use tmp_mask to preserve cpus mask from first failure */
@@ -962,7 +962,7 @@ int rtas_ibm_suspend_me(u64 handle)
 		return -EIO;
 	}
 
-	if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+	if (!alloc_cpumask_var(&offline_mask, GFP_KERNEL))
 		return -ENOMEM;
 
 	atomic_set(&data.working, 0);
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 0ac741fae90e..2e3bc16d02b2 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -904,9 +904,6 @@ void __init setup_arch(char **cmdline_p)
 #endif
 #endif
 
-#ifdef CONFIG_PPC_64K_PAGES
-	init_mm.context.pte_frag = NULL;
-#endif
 #ifdef CONFIG_SPAPR_TCE_IOMMU
 	mm_iommu_init(&init_mm);
 #endif
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index c83c115858c1..b2c002993d78 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -452,9 +452,20 @@ static long restore_tm_sigcontexts(struct task_struct *tsk,
 	if (MSR_TM_RESV(msr))
 		return -EINVAL;
 
-	/* pull in MSR TM from user context */
+	/* pull in MSR TS bits from user context */
 	regs->msr = (regs->msr & ~MSR_TS_MASK) | (msr & MSR_TS_MASK);
 
+	/*
+	 * Ensure that TM is enabled in regs->msr before we leave the signal
+	 * handler. It could be the case that (a) user disabled the TM bit
+	 * through the manipulation of the MSR bits in uc_mcontext or (b) the
+	 * TM bit was disabled because a sufficient number of context switches
+	 * happened whilst in the signal handler and load_tm overflowed,
+	 * disabling the TM bit. In either case we can end up with an illegal
+	 * TM state leading to a TM Bad Thing when we return to userspace.
+	 */
+	regs->msr |= MSR_TM;
+
 	/* pull in MSR LE from user context */
 	regs->msr = (regs->msr & ~MSR_LE) | (msr & MSR_LE);
 
diff --git a/arch/powerpc/kernel/smp-tbsync.c b/arch/powerpc/kernel/smp-tbsync.c
index 7a37ecd3afa3..21c39355b25e 100644
--- a/arch/powerpc/kernel/smp-tbsync.c
+++ b/arch/powerpc/kernel/smp-tbsync.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Smp timebase synchronization for ppc.
  *
diff --git a/arch/powerpc/kernel/swsusp_32.S b/arch/powerpc/kernel/swsusp_32.S
index ba4dee3d233f..34b73a262709 100644
--- a/arch/powerpc/kernel/swsusp_32.S
+++ b/arch/powerpc/kernel/swsusp_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/threads.h>
 #include <asm/processor.h>
 #include <asm/page.h>
diff --git a/arch/powerpc/kernel/swsusp_booke.S b/arch/powerpc/kernel/swsusp_booke.S
index 553c1405ee05..88cfdbd530f1 100644
--- a/arch/powerpc/kernel/swsusp_booke.S
+++ b/arch/powerpc/kernel/swsusp_booke.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Based on swsusp_32.S, modified for FSL BookE by
  * Anton Vorontsov <avorontsov@ru.mvista.com>
diff --git a/arch/powerpc/kernel/tau_6xx.c b/arch/powerpc/kernel/tau_6xx.c
index a753b72efbc0..a3374e8a258c 100644
--- a/arch/powerpc/kernel/tau_6xx.c
+++ b/arch/powerpc/kernel/tau_6xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * temp.c	Thermal management for cpu's with Thermal Assist Units
  *
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index c4ba37822ba0..1da12f521cb7 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Transactional memory support routines to reclaim and recheckpoint
  * transactional process state.
diff --git a/arch/powerpc/kernel/trace/Makefile b/arch/powerpc/kernel/trace/Makefile
index 729dffc5f7bc..d22d8bafb643 100644
--- a/arch/powerpc/kernel/trace/Makefile
+++ b/arch/powerpc/kernel/trace/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the powerpc trace subsystem
 #
diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c
index 32509de6ce4c..4741fe112f05 100644
--- a/arch/powerpc/kernel/trace/ftrace.c
+++ b/arch/powerpc/kernel/trace/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Code for replacing ftrace calls with jumps.
  *
diff --git a/arch/powerpc/kernel/trace/ftrace_64_mprofile.S b/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
index c98e90b4ea7b..b4e2b7165f79 100644
--- a/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
+++ b/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
@@ -181,34 +181,25 @@ _GLOBAL(ftrace_stub)
 	 *  - we have no stack frame and can not allocate one
 	 *  - LR points back to the original caller (in A)
 	 *  - CTR holds the new NIP in C
-	 *  - r0 & r12 are free
-	 *
-	 * r0 can't be used as the base register for a DS-form load or store, so
-	 * we temporarily shuffle r1 (stack pointer) into r0 and then put it back.
+	 *  - r0, r11 & r12 are free
 	 */
 livepatch_handler:
 	CURRENT_THREAD_INFO(r12, r1)
 
-	/* Save stack pointer into r0 */
-	mr	r0, r1
-
 	/* Allocate 3 x 8 bytes */
-	ld	r1, TI_livepatch_sp(r12)
-	addi	r1, r1, 24
-	std	r1, TI_livepatch_sp(r12)
+	ld	r11, TI_livepatch_sp(r12)
+	addi	r11, r11, 24
+	std	r11, TI_livepatch_sp(r12)
 
 	/* Save toc & real LR on livepatch stack */
-	std	r2,  -24(r1)
+	std	r2,  -24(r11)
 	mflr	r12
-	std	r12, -16(r1)
+	std	r12, -16(r11)
 
 	/* Store stack end marker */
 	lis     r12, STACK_END_MAGIC@h
 	ori     r12, r12, STACK_END_MAGIC@l
-	std	r12, -8(r1)
-
-	/* Restore real stack pointer */
-	mr	r1, r0
+	std	r12, -8(r11)
 
 	/* Put ctr in r12 for global entry and branch there */
 	mfctr	r12
@@ -216,36 +207,30 @@ livepatch_handler:
 
 	/*
 	 * Now we are returning from the patched function to the original
-	 * caller A. We are free to use r0 and r12, and we can use r2 until we
+	 * caller A. We are free to use r11, r12 and we can use r2 until we
 	 * restore it.
 	 */
 
 	CURRENT_THREAD_INFO(r12, r1)
 
-	/* Save stack pointer into r0 */
-	mr	r0, r1
-
-	ld	r1, TI_livepatch_sp(r12)
+	ld	r11, TI_livepatch_sp(r12)
 
 	/* Check stack marker hasn't been trashed */
 	lis     r2,  STACK_END_MAGIC@h
 	ori     r2,  r2, STACK_END_MAGIC@l
-	ld	r12, -8(r1)
+	ld	r12, -8(r11)
 1:	tdne	r12, r2
 	EMIT_BUG_ENTRY 1b, __FILE__, __LINE__ - 1, 0
 
 	/* Restore LR & toc from livepatch stack */
-	ld	r12, -16(r1)
+	ld	r12, -16(r11)
 	mtlr	r12
-	ld	r2,  -24(r1)
+	ld	r2,  -24(r11)
 
 	/* Pop livepatch stack frame */
-	CURRENT_THREAD_INFO(r12, r0)
-	subi	r1, r1, 24
-	std	r1, TI_livepatch_sp(r12)
-
-	/* Restore real stack pointer */
-	mr	r1, r0
+	CURRENT_THREAD_INFO(r12, r1)
+	subi	r11, r11, 24
+	std	r11, TI_livepatch_sp(r12)
 
 	/* Return to original caller of live patched function */
 	blr
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index ec74e203ee04..13c9dcdcba69 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -437,6 +437,7 @@ static inline int check_io_access(struct pt_regs *regs)
 int machine_check_e500mc(struct pt_regs *regs)
 {
 	unsigned long mcsr = mfspr(SPRN_MCSR);
+	unsigned long pvr = mfspr(SPRN_PVR);
 	unsigned long reason = mcsr;
 	int recoverable = 1;
 
@@ -478,8 +479,15 @@ int machine_check_e500mc(struct pt_regs *regs)
 		 * may still get logged and cause a machine check.  We should
 		 * only treat the non-write shadow case as non-recoverable.
 		 */
-		if (!(mfspr(SPRN_L1CSR2) & L1CSR2_DCWS))
-			recoverable = 0;
+		/* On e6500 core, L1 DCWS (Data cache write shadow mode) bit
+		 * is not implemented but L1 data cache always runs in write
+		 * shadow mode. Hence on data cache parity errors HW will
+		 * automatically invalidate the L1 Data Cache.
+		 */
+		if (PVR_VER(pvr) != PVR_VER_E6500) {
+			if (!(mfspr(SPRN_L1CSR2) & L1CSR2_DCWS))
+				recoverable = 0;
+		}
 	}
 
 	if (reason & MCSR_L2MMU_MHIT) {
diff --git a/arch/powerpc/kernel/vdso32/Makefile b/arch/powerpc/kernel/vdso32/Makefile
index 78a7449bf489..b8c434d1d459 100644
--- a/arch/powerpc/kernel/vdso32/Makefile
+++ b/arch/powerpc/kernel/vdso32/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 # List of files in the vdso, has to be asm only for now
 
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index e58ee10fa5c0..099a6db14e67 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is the infamous ld script for the 32 bits vdso
  * library
diff --git a/arch/powerpc/kernel/vdso32/vdso32_wrapper.S b/arch/powerpc/kernel/vdso32/vdso32_wrapper.S
index 6ac107ac402a..3f5ef035b0a9 100644
--- a/arch/powerpc/kernel/vdso32/vdso32_wrapper.S
+++ b/arch/powerpc/kernel/vdso32/vdso32_wrapper.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/page.h>
 
diff --git a/arch/powerpc/kernel/vdso64/Makefile b/arch/powerpc/kernel/vdso64/Makefile
index 31107bf5a61f..69cecb346269 100644
--- a/arch/powerpc/kernel/vdso64/Makefile
+++ b/arch/powerpc/kernel/vdso64/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # List of files in the vdso, has to be asm only for now
 
 obj-vdso64 = sigtramp.o gettimeofday.o datapage.o cacheflush.o note.o getcpu.o
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
index 64fb183a47c2..256fb9720298 100644
--- a/arch/powerpc/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is the infamous ld script for the 64 bits vdso
  * library
diff --git a/arch/powerpc/kernel/vdso64/vdso64_wrapper.S b/arch/powerpc/kernel/vdso64/vdso64_wrapper.S
index df60fca6a13d..1d56d81fe3b3 100644
--- a/arch/powerpc/kernel/vdso64/vdso64_wrapper.S
+++ b/arch/powerpc/kernel/vdso64/vdso64_wrapper.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/page.h>
 
diff --git a/arch/powerpc/kernel/vecemu.c b/arch/powerpc/kernel/vecemu.c
index 2d8f6d8ccafc..8812085883fd 100644
--- a/arch/powerpc/kernel/vecemu.c
+++ b/arch/powerpc/kernel/vecemu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Routines to emulate some Altivec/VMX instructions, specifically
  * those that can trap when given denormalized operands in Java mode.
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index 0c123f3406cd..f314fd475491 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 #include <asm/reg.h>
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 882628fa6987..0494e1566ee2 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_PPC64
 #define PROVIDE32(x)	PROVIDE(__unused__##x)
 #else
diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c
index 2f6eadd9408d..1d89163d67f2 100644
--- a/arch/powerpc/kernel/watchdog.c
+++ b/arch/powerpc/kernel/watchdog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Watchdog support on powerpc systems.
  *
@@ -261,9 +262,8 @@ static void wd_timer_reset(unsigned int cpu, struct timer_list *t)
 	add_timer_on(t, cpu);
 }
 
-static void wd_timer_fn(unsigned long data)
+static void wd_timer_fn(struct timer_list *t)
 {
-	struct timer_list *t = this_cpu_ptr(&wd_timer);
 	int cpu = smp_processor_id();
 
 	watchdog_timer_interrupt(cpu);
@@ -287,7 +287,7 @@ static void start_watchdog_timer_on(unsigned int cpu)
 
 	per_cpu(wd_timer_tb, cpu) = get_tb();
 
-	setup_pinned_timer(t, wd_timer_fn, 0);
+	timer_setup(t, wd_timer_fn, TIMER_PINNED);
 	wd_timer_reset(cpu, t);
 }
 
@@ -310,9 +310,6 @@ static int start_wd_on_cpu(unsigned int cpu)
 	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
 		return 0;
 
-	if (watchdog_suspended)
-		return 0;
-
 	if (!cpumask_test_cpu(cpu, &watchdog_cpumask))
 		return 0;
 
@@ -358,36 +355,39 @@ static void watchdog_calc_timeouts(void)
 	wd_timer_period_ms = watchdog_thresh * 1000 * 2 / 5;
 }
 
-void watchdog_nmi_reconfigure(void)
+void watchdog_nmi_stop(void)
 {
 	int cpu;
 
-	watchdog_calc_timeouts();
-
 	for_each_cpu(cpu, &wd_cpus_enabled)
 		stop_wd_on_cpu(cpu);
+}
 
+void watchdog_nmi_start(void)
+{
+	int cpu;
+
+	watchdog_calc_timeouts();
 	for_each_cpu_and(cpu, cpu_online_mask, &watchdog_cpumask)
 		start_wd_on_cpu(cpu);
 }
 
 /*
- * This runs after lockup_detector_init() which sets up watchdog_cpumask.
+ * Invoked from core watchdog init.
  */
-static int __init powerpc_watchdog_init(void)
+int __init watchdog_nmi_probe(void)
 {
 	int err;
 
-	watchdog_calc_timeouts();
-
-	err = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "powerpc/watchdog:online",
-				start_wd_on_cpu, stop_wd_on_cpu);
-	if (err < 0)
+	err = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
+					"powerpc/watchdog:online",
+					start_wd_on_cpu, stop_wd_on_cpu);
+	if (err < 0) {
 		pr_warn("Watchdog could not be initialized");
-
+		return err;
+	}
 	return 0;
 }
-arch_initcall(powerpc_watchdog_init);
 
 static void handle_backtrace_ipi(struct pt_regs *regs)
 {
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index 0c52cb5d43f5..b12b8eb39c29 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index 381a6ec0ff3b..85ba80de7133 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Kernel-based Virtual Machine module
 #
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 7c62967d672c..59247af5fd45 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -646,6 +646,16 @@ int kvmppc_book3s_hv_page_fault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		hnow_v = hpte_new_to_old_v(hnow_v, hnow_r);
 		hnow_r = hpte_new_to_old_r(hnow_r);
 	}
+
+	/*
+	 * If the HPT is being resized, don't update the HPTE,
+	 * instead let the guest retry after the resize operation is complete.
+	 * The synchronization for hpte_setup_done test vs. set is provided
+	 * by the HPTE lock.
+	 */
+	if (!kvm->arch.hpte_setup_done)
+		goto out_unlock;
+
 	if ((hnow_v & ~HPTE_V_HVLOCK) != hpte[0] || hnow_r != hpte[1] ||
 	    rev->guest_rpte != hpte[2])
 		/* HPTE has been changed under us; let the guest retry */
diff --git a/arch/powerpc/kvm/book3s_64_vio.c b/arch/powerpc/kvm/book3s_64_vio.c
index 8f2da8bba737..4dffa611376d 100644
--- a/arch/powerpc/kvm/book3s_64_vio.c
+++ b/arch/powerpc/kvm/book3s_64_vio.c
@@ -478,28 +478,30 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 		return ret;
 
 	dir = iommu_tce_direction(tce);
+
+	idx = srcu_read_lock(&vcpu->kvm->srcu);
+
 	if ((dir != DMA_NONE) && kvmppc_gpa_to_ua(vcpu->kvm,
-			tce & ~(TCE_PCI_READ | TCE_PCI_WRITE), &ua, NULL))
-		return H_PARAMETER;
+			tce & ~(TCE_PCI_READ | TCE_PCI_WRITE), &ua, NULL)) {
+		ret = H_PARAMETER;
+		goto unlock_exit;
+	}
 
 	entry = ioba >> stt->page_shift;
 
 	list_for_each_entry_lockless(stit, &stt->iommu_tables, next) {
-		if (dir == DMA_NONE) {
+		if (dir == DMA_NONE)
 			ret = kvmppc_tce_iommu_unmap(vcpu->kvm,
 					stit->tbl, entry);
-		} else {
-			idx = srcu_read_lock(&vcpu->kvm->srcu);
+		else
 			ret = kvmppc_tce_iommu_map(vcpu->kvm, stit->tbl,
 					entry, ua, dir);
-			srcu_read_unlock(&vcpu->kvm->srcu, idx);
-		}
 
 		if (ret == H_SUCCESS)
 			continue;
 
 		if (ret == H_TOO_HARD)
-			return ret;
+			goto unlock_exit;
 
 		WARN_ON_ONCE(1);
 		kvmppc_clear_tce(stit->tbl, entry);
@@ -507,7 +509,10 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 
 	kvmppc_tce_put(stt, entry, tce);
 
-	return H_SUCCESS;
+unlock_exit:
+	srcu_read_unlock(&vcpu->kvm->srcu, idx);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(kvmppc_h_put_tce);
 
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 18e974a34fce..8d43cf205d34 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -181,7 +181,7 @@ static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
 	struct swait_queue_head *wqp;
 
 	wqp = kvm_arch_vcpu_wq(vcpu);
-	if (swait_active(wqp)) {
+	if (swq_has_sleeper(wqp)) {
 		swake_up(wqp);
 		++vcpu->stat.halt_wakeup;
 	}
@@ -2705,11 +2705,14 @@ static noinline void kvmppc_run_core(struct kvmppc_vcore *vc)
 	 * Hard-disable interrupts, and check resched flag and signals.
 	 * If we need to reschedule or deliver a signal, clean up
 	 * and return without going into the guest(s).
+	 * If the hpte_setup_done flag has been cleared, don't go into the
+	 * guest because that means a HPT resize operation is in progress.
 	 */
 	local_irq_disable();
 	hard_irq_disable();
 	if (lazy_irq_pending() || need_resched() ||
-	    recheck_signals(&core_info)) {
+	    recheck_signals(&core_info) ||
+	    (!kvm_is_radix(vc->kvm) && !vc->kvm->arch.hpte_setup_done)) {
 		local_irq_enable();
 		vc->vcore_state = VCORE_INACTIVE;
 		/* Unlock all except the primary vcore */
@@ -3078,7 +3081,7 @@ out:
 
 static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
-	int n_ceded, i;
+	int n_ceded, i, r;
 	struct kvmppc_vcore *vc;
 	struct kvm_vcpu *v;
 
@@ -3132,6 +3135,20 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 
 	while (vcpu->arch.state == KVMPPC_VCPU_RUNNABLE &&
 	       !signal_pending(current)) {
+		/* See if the HPT and VRMA are ready to go */
+		if (!kvm_is_radix(vcpu->kvm) &&
+		    !vcpu->kvm->arch.hpte_setup_done) {
+			spin_unlock(&vc->lock);
+			r = kvmppc_hv_setup_htab_rma(vcpu);
+			spin_lock(&vc->lock);
+			if (r) {
+				kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY;
+				kvm_run->fail_entry.hardware_entry_failure_reason = 0;
+				vcpu->arch.ret = r;
+				break;
+			}
+		}
+
 		if (vc->vcore_state == VCORE_PREEMPT && vc->runner == NULL)
 			kvmppc_vcore_end_preempt(vc);
 
@@ -3249,13 +3266,6 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	/* Order vcpus_running vs. hpte_setup_done, see kvmppc_alloc_reset_hpt */
 	smp_mb();
 
-	/* On the first time here, set up HTAB and VRMA */
-	if (!kvm_is_radix(vcpu->kvm) && !vcpu->kvm->arch.hpte_setup_done) {
-		r = kvmppc_hv_setup_htab_rma(vcpu);
-		if (r)
-			goto out;
-	}
-
 	flush_all_to_thread(current);
 
 	/* Save userspace EBB and other register values */
@@ -3303,7 +3313,6 @@ static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	}
 	mtspr(SPRN_VRSAVE, user_vrsave);
 
- out:
 	vcpu->arch.state = KVMPPC_VCPU_NOTREADY;
 	atomic_dec(&vcpu->kvm->arch.vcpus_running);
 	return r;
@@ -4212,11 +4221,13 @@ static int kvmhv_configure_mmu(struct kvm *kvm, struct kvm_ppc_mmuv3_cfg *cfg)
 	if ((cfg->process_table & PRTS_MASK) > 24)
 		return -EINVAL;
 
+	mutex_lock(&kvm->lock);
 	kvm->arch.process_table = cfg->process_table;
 	kvmppc_setup_partition_table(kvm);
 
 	lpcr = (cfg->flags & KVM_PPC_MMUV3_GTSE) ? LPCR_GTSE : 0;
 	kvmppc_update_lpcr(kvm, lpcr, LPCR_GTSE);
+	mutex_unlock(&kvm->lock);
 
 	return 0;
 }
diff --git a/arch/powerpc/kvm/book3s_hv_rm_xive.c b/arch/powerpc/kvm/book3s_hv_rm_xive.c
index abf5f01b6eb1..174d75e476fa 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_xive.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_xive.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/kvm_host.h>
 #include <linux/err.h>
@@ -38,7 +39,6 @@ static inline void __iomem *get_tima_phys(void)
 #define __x_tima		get_tima_phys()
 #define __x_eoi_page(xd)	((void __iomem *)((xd)->eoi_page))
 #define __x_trig_page(xd)	((void __iomem *)((xd)->trig_page))
-#define __x_readb	__raw_rm_readb
 #define __x_writeb	__raw_rm_writeb
 #define __x_readw	__raw_rm_readw
 #define __x_readq	__raw_rm_readq
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 663a4a861e7f..42639fba89e8 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -771,6 +771,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
+	/*
+	 * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+	 */
 	bl	kvmppc_restore_tm
 END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
@@ -986,13 +989,14 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300)
 	beq	no_xive
 	ld	r11, VCPU_XIVE_SAVED_STATE(r4)
 	li	r9, TM_QW1_OS
-	stdcix	r11,r9,r10
 	eieio
+	stdcix	r11,r9,r10
 	lwz	r11, VCPU_XIVE_CAM_WORD(r4)
 	li	r9, TM_QW1_OS + TM_WORD2
 	stwcix	r11,r9,r10
 	li	r9, 1
 	stw	r9, VCPU_XIVE_PUSHED(r4)
+	eieio
 no_xive:
 #endif /* CONFIG_KVM_XICS */
 
@@ -1118,6 +1122,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 BEGIN_FTR_SECTION
 	mtspr	SPRN_PPR, r0
 END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+
+/* Move canary into DSISR to check for later */
+BEGIN_FTR_SECTION
+	li	r0, 0x7fff
+	mtspr	SPRN_HDSISR, r0
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+
 	ld	r0, VCPU_GPR(R0)(r4)
 	ld	r4, VCPU_GPR(R4)(r4)
 
@@ -1300,6 +1311,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 	bne	3f
 BEGIN_FTR_SECTION
 	PPC_MSGSYNC
+	lwsync
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
 	lbz	r0, HSTATE_HOST_IPI(r13)
 	cmpwi	r0, 0
@@ -1390,8 +1402,8 @@ guest_exit_cont:		/* r9 = vcpu, r12 = trap, r13 = paca */
 	cmpldi	cr0, r10, 0
 	beq	1f
 	/* First load to pull the context, we ignore the value */
-	lwzx	r11, r7, r10
 	eieio
+	lwzx	r11, r7, r10
 	/* Second load to recover the context state (Words 0 and 1) */
 	ldx	r11, r6, r10
 	b	3f
@@ -1399,8 +1411,8 @@ guest_exit_cont:		/* r9 = vcpu, r12 = trap, r13 = paca */
 	cmpldi	cr0, r10, 0
 	beq	1f
 	/* First load to pull the context, we ignore the value */
-	lwzcix	r11, r7, r10
 	eieio
+	lwzcix	r11, r7, r10
 	/* Second load to recover the context state (Words 0 and 1) */
 	ldcix	r11, r6, r10
 3:	std	r11, VCPU_XIVE_SAVED_STATE(r9)
@@ -1410,6 +1422,7 @@ guest_exit_cont:		/* r9 = vcpu, r12 = trap, r13 = paca */
 	stw	r10, VCPU_XIVE_PUSHED(r9)
 	stb	r10, (VCPU_XIVE_SAVED_STATE+3)(r9)
 	stb	r0, (VCPU_XIVE_SAVED_STATE+4)(r9)
+	eieio
 1:
 #endif /* CONFIG_KVM_XICS */
 	/* Save more register state  */
@@ -1630,6 +1643,9 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_300)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
+	/*
+	 * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+	 */
 	bl	kvmppc_save_tm
 END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
@@ -1749,7 +1765,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
 	/*
 	 * Are we running hash or radix ?
 	 */
-	beq	cr2,3f
+	ld	r5, VCPU_KVM(r9)
+	lbz	r0, KVM_RADIX(r5)
+	cmpwi	cr2, r0, 0
+	beq	cr2, 3f
 
 	/* Radix: Handle the case where the guest used an illegal PID */
 	LOAD_REG_ADDR(r4, mmu_base_pid)
@@ -1947,9 +1966,14 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX)
 kvmppc_hdsi:
 	ld	r3, VCPU_KVM(r9)
 	lbz	r0, KVM_RADIX(r3)
-	cmpwi	r0, 0
 	mfspr	r4, SPRN_HDAR
 	mfspr	r6, SPRN_HDSISR
+BEGIN_FTR_SECTION
+	/* Look for DSISR canary. If we find it, retry instruction */
+	cmpdi	r6, 0x7fff
+	beq	6f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
+	cmpwi	r0, 0
 	bne	.Lradix_hdsi		/* on radix, just save DAR/DSISR/ASDR */
 	/* HPTE not found fault or protection fault? */
 	andis.	r0, r6, (DSISR_NOHPTE | DSISR_PROTFAULT)@h
@@ -2466,6 +2490,9 @@ _GLOBAL(kvmppc_h_cede)		/* r3 = vcpu pointer, r11 = msr, r13 = paca */
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
+	/*
+	 * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+	 */
 	ld	r9, HSTATE_KVM_VCPU(r13)
 	bl	kvmppc_save_tm
 END_FTR_SECTION_IFSET(CPU_FTR_TM)
@@ -2578,6 +2605,9 @@ kvm_end_cede:
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 BEGIN_FTR_SECTION
+	/*
+	 * NOTE THAT THIS TRASHES ALL NON-VOLATILE REGISTERS INCLUDING CR
+	 */
 	bl	kvmppc_restore_tm
 END_FTR_SECTION_IFSET(CPU_FTR_TM)
 #endif
@@ -2761,6 +2791,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 	PPC_MSGCLR(6)
 	/* see if it's a host IPI */
 	li	r3, 1
+BEGIN_FTR_SECTION
+	PPC_MSGSYNC
+	lwsync
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300)
 	lbz	r0, HSTATE_HOST_IPI(r13)
 	cmpwi	r0, 0
 	bnelr
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 08b200a0bbce..bf457843e032 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -48,7 +48,6 @@
 #define __x_tima		xive_tima
 #define __x_eoi_page(xd)	((void __iomem *)((xd)->eoi_mmio))
 #define __x_trig_page(xd)	((void __iomem *)((xd)->trig_mmio))
-#define __x_readb	__raw_readb
 #define __x_writeb	__raw_writeb
 #define __x_readw	__raw_readw
 #define __x_readq	__raw_readq
@@ -623,7 +622,7 @@ int kvmppc_xive_get_xive(struct kvm *kvm, u32 irq, u32 *server,
 		return -EINVAL;
 	state = &sb->irq_state[idx];
 	arch_spin_lock(&sb->lock);
-	*server = state->guest_server;
+	*server = state->act_server;
 	*priority = state->guest_priority;
 	arch_spin_unlock(&sb->lock);
 
@@ -1332,7 +1331,7 @@ static int xive_get_source(struct kvmppc_xive *xive, long irq, u64 addr)
 	xive->saved_src_count++;
 
 	/* Convert saved state into something compatible with xics */
-	val = state->guest_server;
+	val = state->act_server;
 	prio = state->saved_scan_prio;
 
 	if (prio == MASKED) {
@@ -1508,7 +1507,6 @@ static int xive_set_source(struct kvmppc_xive *xive, long irq, u64 addr)
 	/* First convert prio and mark interrupt as untargetted */
 	act_prio = xive_prio_from_guest(guest_prio);
 	state->act_priority = MASKED;
-	state->guest_server = server;
 
 	/*
 	 * We need to drop the lock due to the mutex below. Hopefully
diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h
index 5938f7644dc1..6ba63f8e8a61 100644
--- a/arch/powerpc/kvm/book3s_xive.h
+++ b/arch/powerpc/kvm/book3s_xive.h
@@ -35,7 +35,6 @@ struct kvmppc_xive_irq_state {
 	struct xive_irq_data *pt_data;	/* XIVE Pass-through associated data */
 
 	/* Targetting as set by guest */
-	u32 guest_server;		/* Current guest selected target */
 	u8 guest_priority;		/* Guest set priority */
 	u8 saved_priority;		/* Saved priority when masking */
 
diff --git a/arch/powerpc/kvm/book3s_xive_template.c b/arch/powerpc/kvm/book3s_xive_template.c
index d1ed2c41b5d2..c7a5deadd1cc 100644
--- a/arch/powerpc/kvm/book3s_xive_template.c
+++ b/arch/powerpc/kvm/book3s_xive_template.c
@@ -28,7 +28,8 @@ static void GLUE(X_PFX,ack_pending)(struct kvmppc_xive_vcpu *xc)
 	 * bit.
 	 */
 	if (cpu_has_feature(CPU_FTR_POWER9_DD1)) {
-		u8 pipr = __x_readb(__x_tima + TM_QW1_OS + TM_PIPR);
+		__be64 qw1 = __x_readq(__x_tima + TM_QW1_OS);
+		u8 pipr = be64_to_cpu(qw1) & 0xff;
 		if (pipr >= xc->hw_cppr)
 			return;
 	}
@@ -336,7 +337,6 @@ X_STATIC unsigned long GLUE(X_PFX,h_ipoll)(struct kvm_vcpu *vcpu, unsigned long
 	struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu;
 	u8 pending = xc->pending;
 	u32 hirq;
-	u8 pipr;
 
 	pr_devel("H_IPOLL(server=%ld)\n", server);
 
@@ -353,7 +353,8 @@ X_STATIC unsigned long GLUE(X_PFX,h_ipoll)(struct kvm_vcpu *vcpu, unsigned long
 		pending = 0xff;
 	} else {
 		/* Grab pending interrupt if any */
-		pipr = __x_readb(__x_tima + TM_QW1_OS + TM_PIPR);
+		__be64 qw1 = __x_readq(__x_tima + TM_QW1_OS);
+		u8 pipr = be64_to_cpu(qw1) & 0xff;
 		if (pipr < 8)
 			pending |= 1 << pipr;
 	}
diff --git a/arch/powerpc/kvm/irq.h b/arch/powerpc/kvm/irq.h
index 3f1be85a83bc..e6463f866abc 100644
--- a/arch/powerpc/kvm/irq.h
+++ b/arch/powerpc/kvm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IRQ_H
 #define __IRQ_H
 
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 3480faaf1ef8..ee279c7f4802 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -644,8 +644,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext)
 		break;
 #endif
 	case KVM_CAP_PPC_HTM:
-		r = cpu_has_feature(CPU_FTR_TM_COMP) &&
-		    is_kvmppc_hv_enabled(kvm);
+		r = cpu_has_feature(CPU_FTR_TM_COMP) && hv_enabled;
 		break;
 	default:
 		r = 0;
diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index 2e0e67ef3544..491b0f715d6b 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_H
 
diff --git a/arch/powerpc/kvm/trace_book3s.h b/arch/powerpc/kvm/trace_book3s.h
index f647ce0f428b..f3b23759e017 100644
--- a/arch/powerpc/kvm/trace_book3s.h
+++ b/arch/powerpc/kvm/trace_book3s.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_BOOK3S_H)
 #define _TRACE_KVM_BOOK3S_H
 
diff --git a/arch/powerpc/kvm/trace_booke.h b/arch/powerpc/kvm/trace_booke.h
index 7ec534d1db9f..ac640e81fdc5 100644
--- a/arch/powerpc/kvm/trace_booke.h
+++ b/arch/powerpc/kvm/trace_booke.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_BOOKE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_BOOKE_H
 
diff --git a/arch/powerpc/kvm/trace_hv.h b/arch/powerpc/kvm/trace_hv.h
index ebc6dd449556..bcfe8a987f6a 100644
--- a/arch/powerpc/kvm/trace_hv.h
+++ b/arch/powerpc/kvm/trace_hv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_HV_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_HV_H
 
diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h
index d44f324184fb..85785a370c0e 100644
--- a/arch/powerpc/kvm/trace_pr.h
+++ b/arch/powerpc/kvm/trace_pr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #if !defined(_TRACE_KVM_PR_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_PR_H
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 50d5bf954cff..c66c3626a216 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ppc-specific library files..
 #
diff --git a/arch/powerpc/lib/alloc.c b/arch/powerpc/lib/alloc.c
index a58abe4afbd1..06796dec01ea 100644
--- a/arch/powerpc/lib/alloc.c
+++ b/arch/powerpc/lib/alloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/slab.h>
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index fb9f58b868e7..f208f560aecd 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -944,9 +944,9 @@ NOKPROBE_SYMBOL(emulate_dcbz);
 		: "r" (addr), "i" (-EFAULT), "0" (err))
 
 static nokprobe_inline void set_cr0(const struct pt_regs *regs,
-				    struct instruction_op *op, int rd)
+				    struct instruction_op *op)
 {
-	long val = regs->gpr[rd];
+	long val = op->val;
 
 	op->type |= SETCC;
 	op->ccval = (regs->ccr & 0x0fffffff) | ((regs->xer >> 3) & 0x10000000);
@@ -1326,7 +1326,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 	case 13:	/* addic. */
 		imm = (short) instr;
 		add_with_carry(regs, op, rd, regs->gpr[ra], imm, 0);
-		set_cr0(regs, op, rd);
+		set_cr0(regs, op);
 		return 1;
 
 	case 14:	/* addi */
@@ -1397,13 +1397,13 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 
 	case 28:	/* andi. */
 		op->val = regs->gpr[rd] & (unsigned short) instr;
-		set_cr0(regs, op, ra);
+		set_cr0(regs, op);
 		goto logical_done_nocc;
 
 	case 29:	/* andis. */
 		imm = (unsigned short) instr;
 		op->val = regs->gpr[rd] & (imm << 16);
-		set_cr0(regs, op, ra);
+		set_cr0(regs, op);
 		goto logical_done_nocc;
 
 #ifdef __powerpc64__
@@ -1513,10 +1513,10 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 			op->type = COMPUTE + SETCC;
 			imm = 0xf0000000UL;
 			val = regs->gpr[rd];
-			op->val = regs->ccr;
+			op->ccval = regs->ccr;
 			for (sh = 0; sh < 8; ++sh) {
 				if (instr & (0x80000 >> sh))
-					op->val = (op->val & ~imm) |
+					op->ccval = (op->ccval & ~imm) |
 						(val & imm);
 				imm >>= 4;
 			}
@@ -1651,8 +1651,9 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 			goto arith_done;
 
 		case 235:	/* mullw */
-			op->val = (unsigned int) regs->gpr[ra] *
-				(unsigned int) regs->gpr[rb];
+			op->val = (long)(int) regs->gpr[ra] *
+				(int) regs->gpr[rb];
+
 			goto arith_done;
 
 		case 266:	/* add */
@@ -1683,11 +1684,13 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
  * Logical instructions
  */
 		case 26:	/* cntlzw */
-			op->val = __builtin_clz((unsigned int) regs->gpr[rd]);
+			val = (unsigned int) regs->gpr[rd];
+			op->val = ( val ? __builtin_clz(val) : 32 );
 			goto logical_done;
 #ifdef __powerpc64__
 		case 58:	/* cntlzd */
-			op->val = __builtin_clzl(regs->gpr[rd]);
+			val = regs->gpr[rd];
+			op->val = ( val ? __builtin_clzl(val) : 64 );
 			goto logical_done;
 #endif
 		case 28:	/* and */
@@ -2526,7 +2529,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 
  logical_done:
 	if (instr & 1)
-		set_cr0(regs, op, ra);
+		set_cr0(regs, op);
  logical_done_nocc:
 	op->reg = ra;
 	op->type |= SETREG;
@@ -2534,7 +2537,7 @@ int analyse_instr(struct instruction_op *op, const struct pt_regs *regs,
 
  arith_done:
 	if (instr & 1)
-		set_cr0(regs, op, rd);
+		set_cr0(regs, op);
  compute_done:
 	op->reg = rd;
 	op->type |= SETREG;
diff --git a/arch/powerpc/lib/xor_vmx.h b/arch/powerpc/lib/xor_vmx.h
index 4746708451ae..5c2b0839b179 100644
--- a/arch/powerpc/lib/xor_vmx.h
+++ b/arch/powerpc/lib/xor_vmx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Simple interface to link xor_vmx.c and xor_vmx_glue.c
  *
diff --git a/arch/powerpc/math-emu/Makefile b/arch/powerpc/math-emu/Makefile
index 1b46ab4f6417..494df26c5988 100644
--- a/arch/powerpc/math-emu/Makefile
+++ b/arch/powerpc/math-emu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 math-emu-common-objs = math.o fre.o fsqrt.o fsqrts.o frsqrtes.o mtfsf.o mtfsfi.o
 obj-$(CONFIG_MATH_EMULATION_HW_UNIMPLEMENTED) += $(math-emu-common-objs)
 obj-$(CONFIG_MATH_EMULATION_FULL) += $(math-emu-common-objs) fabs.o fadd.o \
diff --git a/arch/powerpc/math-emu/fabs.c b/arch/powerpc/math-emu/fabs.c
index a5e7ad1384ee..3b62fd70b77e 100644
--- a/arch/powerpc/math-emu/fabs.c
+++ b/arch/powerpc/math-emu/fabs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fadd.c b/arch/powerpc/math-emu/fadd.c
index 29de37e0e0da..727e49ad55d1 100644
--- a/arch/powerpc/math-emu/fadd.c
+++ b/arch/powerpc/math-emu/fadd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fadds.c b/arch/powerpc/math-emu/fadds.c
index 7093c5b58002..45254be05662 100644
--- a/arch/powerpc/math-emu/fadds.c
+++ b/arch/powerpc/math-emu/fadds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fcmpo.c b/arch/powerpc/math-emu/fcmpo.c
index 5d644467221c..f437d0896c59 100644
--- a/arch/powerpc/math-emu/fcmpo.c
+++ b/arch/powerpc/math-emu/fcmpo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fcmpu.c b/arch/powerpc/math-emu/fcmpu.c
index 0f9bf4864832..65631fa5dc39 100644
--- a/arch/powerpc/math-emu/fcmpu.c
+++ b/arch/powerpc/math-emu/fcmpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fctiw.c b/arch/powerpc/math-emu/fctiw.c
index 716d6da7f204..ebb0f11e735e 100644
--- a/arch/powerpc/math-emu/fctiw.c
+++ b/arch/powerpc/math-emu/fctiw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fctiwz.c b/arch/powerpc/math-emu/fctiwz.c
index 7212fa7cfd36..426271c4f004 100644
--- a/arch/powerpc/math-emu/fctiwz.c
+++ b/arch/powerpc/math-emu/fctiwz.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fdiv.c b/arch/powerpc/math-emu/fdiv.c
index e1e452069e49..6e64ece2d395 100644
--- a/arch/powerpc/math-emu/fdiv.c
+++ b/arch/powerpc/math-emu/fdiv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fdivs.c b/arch/powerpc/math-emu/fdivs.c
index 5511e2d1c3ad..f9f7adf46262 100644
--- a/arch/powerpc/math-emu/fdivs.c
+++ b/arch/powerpc/math-emu/fdivs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmadd.c b/arch/powerpc/math-emu/fmadd.c
index 2b6fae0bc8c2..e8458aed5edb 100644
--- a/arch/powerpc/math-emu/fmadd.c
+++ b/arch/powerpc/math-emu/fmadd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmadds.c b/arch/powerpc/math-emu/fmadds.c
index aff35f24a236..a6d3f9842f19 100644
--- a/arch/powerpc/math-emu/fmadds.c
+++ b/arch/powerpc/math-emu/fmadds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmr.c b/arch/powerpc/math-emu/fmr.c
index f6347911f6a3..48c64374286e 100644
--- a/arch/powerpc/math-emu/fmr.c
+++ b/arch/powerpc/math-emu/fmr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmsub.c b/arch/powerpc/math-emu/fmsub.c
index 1fb26cebe04e..605cda49e7b2 100644
--- a/arch/powerpc/math-emu/fmsub.c
+++ b/arch/powerpc/math-emu/fmsub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmsubs.c b/arch/powerpc/math-emu/fmsubs.c
index f73965453e05..f26ec0acf0a5 100644
--- a/arch/powerpc/math-emu/fmsubs.c
+++ b/arch/powerpc/math-emu/fmsubs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmul.c b/arch/powerpc/math-emu/fmul.c
index ffd31b549290..d114f7acdbb1 100644
--- a/arch/powerpc/math-emu/fmul.c
+++ b/arch/powerpc/math-emu/fmul.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fmuls.c b/arch/powerpc/math-emu/fmuls.c
index 21aee431ca9d..aaeba0acb47f 100644
--- a/arch/powerpc/math-emu/fmuls.c
+++ b/arch/powerpc/math-emu/fmuls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fnabs.c b/arch/powerpc/math-emu/fnabs.c
index af877a53d264..6c439e6c2c58 100644
--- a/arch/powerpc/math-emu/fnabs.c
+++ b/arch/powerpc/math-emu/fnabs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fneg.c b/arch/powerpc/math-emu/fneg.c
index 8417d174758c..791e724f712f 100644
--- a/arch/powerpc/math-emu/fneg.c
+++ b/arch/powerpc/math-emu/fneg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fnmadd.c b/arch/powerpc/math-emu/fnmadd.c
index 6316ef0e0874..02a7099b26af 100644
--- a/arch/powerpc/math-emu/fnmadd.c
+++ b/arch/powerpc/math-emu/fnmadd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fnmadds.c b/arch/powerpc/math-emu/fnmadds.c
index 9ffe037df2b9..ce42a7a44d2e 100644
--- a/arch/powerpc/math-emu/fnmadds.c
+++ b/arch/powerpc/math-emu/fnmadds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fnmsub.c b/arch/powerpc/math-emu/fnmsub.c
index f97a9cfb54ea..eade699c51d5 100644
--- a/arch/powerpc/math-emu/fnmsub.c
+++ b/arch/powerpc/math-emu/fnmsub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fnmsubs.c b/arch/powerpc/math-emu/fnmsubs.c
index 7fa1217bd930..4e1f6c2b7c40 100644
--- a/arch/powerpc/math-emu/fnmsubs.c
+++ b/arch/powerpc/math-emu/fnmsubs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fre.c b/arch/powerpc/math-emu/fre.c
index b621a790aa67..584b16f53304 100644
--- a/arch/powerpc/math-emu/fre.c
+++ b/arch/powerpc/math-emu/fre.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fres.c b/arch/powerpc/math-emu/fres.c
index 211c30d0145f..f7d5654ce7d6 100644
--- a/arch/powerpc/math-emu/fres.c
+++ b/arch/powerpc/math-emu/fres.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/frsp.c b/arch/powerpc/math-emu/frsp.c
index 3e3bc73e27ae..cb33e3d9bbb2 100644
--- a/arch/powerpc/math-emu/frsp.c
+++ b/arch/powerpc/math-emu/frsp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/frsqrte.c b/arch/powerpc/math-emu/frsqrte.c
index 7c2ce43750dc..72955b27c3ca 100644
--- a/arch/powerpc/math-emu/frsqrte.c
+++ b/arch/powerpc/math-emu/frsqrte.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/frsqrtes.c b/arch/powerpc/math-emu/frsqrtes.c
index 269951a8c650..a036f7b7140c 100644
--- a/arch/powerpc/math-emu/frsqrtes.c
+++ b/arch/powerpc/math-emu/frsqrtes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fsel.c b/arch/powerpc/math-emu/fsel.c
index 32b62c6c7f48..b0d15e15a5d3 100644
--- a/arch/powerpc/math-emu/fsel.c
+++ b/arch/powerpc/math-emu/fsel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fsqrt.c b/arch/powerpc/math-emu/fsqrt.c
index 0e2a34b616dc..05438590388e 100644
--- a/arch/powerpc/math-emu/fsqrt.c
+++ b/arch/powerpc/math-emu/fsqrt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fsqrts.c b/arch/powerpc/math-emu/fsqrts.c
index 420cf19b5fd4..1624f97c69cc 100644
--- a/arch/powerpc/math-emu/fsqrts.c
+++ b/arch/powerpc/math-emu/fsqrts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fsub.c b/arch/powerpc/math-emu/fsub.c
index feedd705cf62..47a8f847b422 100644
--- a/arch/powerpc/math-emu/fsub.c
+++ b/arch/powerpc/math-emu/fsub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/fsubs.c b/arch/powerpc/math-emu/fsubs.c
index 74190514063e..fa1b3b18c379 100644
--- a/arch/powerpc/math-emu/fsubs.c
+++ b/arch/powerpc/math-emu/fsubs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/lfd.c b/arch/powerpc/math-emu/lfd.c
index d998a50740a0..3a6b03d999ab 100644
--- a/arch/powerpc/math-emu/lfd.c
+++ b/arch/powerpc/math-emu/lfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/lfs.c b/arch/powerpc/math-emu/lfs.c
index 1ee10b83d7e3..7fd3d0854cd8 100644
--- a/arch/powerpc/math-emu/lfs.c
+++ b/arch/powerpc/math-emu/lfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/math.c b/arch/powerpc/math-emu/math.c
index 76ee2e5dba65..30b4b69c6941 100644
--- a/arch/powerpc/math-emu/math.c
+++ b/arch/powerpc/math-emu/math.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 1999  Eddie C. Dost  (ecd@atecom.com)
  */
diff --git a/arch/powerpc/math-emu/mcrfs.c b/arch/powerpc/math-emu/mcrfs.c
index 8e8e72397ebc..9c4fdaace475 100644
--- a/arch/powerpc/math-emu/mcrfs.c
+++ b/arch/powerpc/math-emu/mcrfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/mffs.c b/arch/powerpc/math-emu/mffs.c
index e00fdc22a0bc..d42f1278e958 100644
--- a/arch/powerpc/math-emu/mffs.c
+++ b/arch/powerpc/math-emu/mffs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/mtfsb0.c b/arch/powerpc/math-emu/mtfsb0.c
index 5ed3e7d5063e..5753170b5dfd 100644
--- a/arch/powerpc/math-emu/mtfsb0.c
+++ b/arch/powerpc/math-emu/mtfsb0.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/mtfsb1.c b/arch/powerpc/math-emu/mtfsb1.c
index 602aa16eda81..8162c3bfd149 100644
--- a/arch/powerpc/math-emu/mtfsb1.c
+++ b/arch/powerpc/math-emu/mtfsb1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/mtfsf.c b/arch/powerpc/math-emu/mtfsf.c
index b0d5593ad357..7ae990f6b58b 100644
--- a/arch/powerpc/math-emu/mtfsf.c
+++ b/arch/powerpc/math-emu/mtfsf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/mtfsfi.c b/arch/powerpc/math-emu/mtfsfi.c
index 5df30541a784..45f1edbda357 100644
--- a/arch/powerpc/math-emu/mtfsfi.c
+++ b/arch/powerpc/math-emu/mtfsfi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/stfd.c b/arch/powerpc/math-emu/stfd.c
index 6baeaec134a2..463d2f0832d9 100644
--- a/arch/powerpc/math-emu/stfd.c
+++ b/arch/powerpc/math-emu/stfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/stfiwx.c b/arch/powerpc/math-emu/stfiwx.c
index 9da7c5d1a872..24ae9622fed6 100644
--- a/arch/powerpc/math-emu/stfiwx.c
+++ b/arch/powerpc/math-emu/stfiwx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/stfs.c b/arch/powerpc/math-emu/stfs.c
index 62bd25264fb5..ddf9bbdb5b55 100644
--- a/arch/powerpc/math-emu/stfs.c
+++ b/arch/powerpc/math-emu/stfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/uaccess.h>
diff --git a/arch/powerpc/math-emu/udivmodti4.c b/arch/powerpc/math-emu/udivmodti4.c
index 6172044ab003..1e52633dcbb7 100644
--- a/arch/powerpc/math-emu/udivmodti4.c
+++ b/arch/powerpc/math-emu/udivmodti4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* This has so very few changes over libgcc2's __udivmoddi4 it isn't funny.  */
 
 #include <math-emu/soft-fp.h>
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index fb844d2f266e..a0c327d544d1 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux ppc-specific parts of the memory manager.
 #
diff --git a/arch/powerpc/mm/highmem.c b/arch/powerpc/mm/highmem.c
index e292c8a60952..668e87d03f9e 100644
--- a/arch/powerpc/mm/highmem.c
+++ b/arch/powerpc/mm/highmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * highmem.c: virtual kernel memory mappings for high memory
  *
diff --git a/arch/powerpc/mm/hugetlbpage-book3e.c b/arch/powerpc/mm/hugetlbpage-book3e.c
index bfe4e8526b2d..f84ec46cdb26 100644
--- a/arch/powerpc/mm/hugetlbpage-book3e.c
+++ b/arch/powerpc/mm/hugetlbpage-book3e.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PPC Huge TLB Page Support for Book3E MMU
  *
diff --git a/arch/powerpc/mm/hugetlbpage-hash64.c b/arch/powerpc/mm/hugetlbpage-hash64.c
index a84bb44497f9..0c2a91df3210 100644
--- a/arch/powerpc/mm/hugetlbpage-hash64.c
+++ b/arch/powerpc/mm/hugetlbpage-hash64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PPC64 Huge TLB Page Support for hash based MMUs (POWER4 and later)
  *
diff --git a/arch/powerpc/mm/hugetlbpage-radix.c b/arch/powerpc/mm/hugetlbpage-radix.c
index a12e86395025..558e9d3891bf 100644
--- a/arch/powerpc/mm/hugetlbpage-radix.c
+++ b/arch/powerpc/mm/hugetlbpage-radix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/hugetlb.h>
 #include <asm/pgtable.h>
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index b95c584ce19d..73016451f330 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1438,7 +1438,6 @@ out:
 
 int arch_update_cpu_topology(void)
 {
-	lockdep_assert_cpus_held();
 	return numa_update_cpu_topology(true);
 }
 
@@ -1453,7 +1452,7 @@ static void topology_schedule_update(void)
 	schedule_work(&topology_work);
 }
 
-static void topology_timer_fn(unsigned long ignored)
+static void topology_timer_fn(struct timer_list *unused)
 {
 	if (prrn_enabled && cpumask_weight(&cpu_associativity_changes_mask))
 		topology_schedule_update();
@@ -1463,14 +1462,11 @@ static void topology_timer_fn(unsigned long ignored)
 		reset_topology_timer();
 	}
 }
-static struct timer_list topology_timer =
-	TIMER_INITIALIZER(topology_timer_fn, 0, 0);
+static struct timer_list topology_timer;
 
 static void reset_topology_timer(void)
 {
-	topology_timer.data = 0;
-	topology_timer.expires = jiffies + 60 * HZ;
-	mod_timer(&topology_timer, topology_timer.expires);
+	mod_timer(&topology_timer, jiffies + 60 * HZ);
 }
 
 #ifdef CONFIG_SMP
@@ -1530,7 +1526,8 @@ int start_topology_update(void)
 			prrn_enabled = 0;
 			vphn_enabled = 1;
 			setup_cpu_associativity_change_counters();
-			init_timer_deferrable(&topology_timer);
+			timer_setup(&topology_timer, topology_timer_fn,
+				    TIMER_DEFERRABLE);
 			reset_topology_timer();
 		}
 	}
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 65eda1997c3f..f6c7f54c0515 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -361,9 +361,9 @@ static int change_page_attr(struct page *page, int numpages, pgprot_t prot)
 			break;
 	}
 	wmb();
+	local_irq_restore(flags);
 	flush_tlb_kernel_range((unsigned long)page_address(start),
 			       (unsigned long)page_address(page));
-	local_irq_restore(flags);
 	return err;
 }
 
diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index b3e849c4886e..d304028641a2 100644
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -360,12 +360,14 @@ void radix__flush_tlb_collapsed_pmd(struct mm_struct *mm, unsigned long addr)
 
 
 	pid = mm ? mm->context.id : 0;
+	preempt_disable();
 	if (unlikely(pid == MMU_NO_CONTEXT))
 		goto no_context;
 
 	/* 4k page size, just blow the world */
 	if (PAGE_SIZE == 0x1000) {
 		radix__flush_all_mm(mm);
+		preempt_enable();
 		return;
 	}
 
diff --git a/arch/powerpc/mm/vphn.c b/arch/powerpc/mm/vphn.c
index 5f8ef50e5c66..f83044faac23 100644
--- a/arch/powerpc/mm/vphn.c
+++ b/arch/powerpc/mm/vphn.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/byteorder.h>
 #include "vphn.h"
 
diff --git a/arch/powerpc/mm/vphn.h b/arch/powerpc/mm/vphn.h
index fe8b7805b78f..f9ffdb3942fc 100644
--- a/arch/powerpc/mm/vphn.h
+++ b/arch/powerpc/mm/vphn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_POWERPC_MM_VPHN_H_
 #define _ARCH_POWERPC_MM_VPHN_H_
 
diff --git a/arch/powerpc/net/Makefile b/arch/powerpc/net/Makefile
index c1ff16a6eb51..02d369ca6a53 100644
--- a/arch/powerpc/net/Makefile
+++ b/arch/powerpc/net/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific network modules
 #
diff --git a/arch/powerpc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile
index cedbbeced632..7a7834c39f64 100644
--- a/arch/powerpc/oprofile/Makefile
+++ b/arch/powerpc/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 ccflags-$(CONFIG_PPC64)	:= $(NO_MINIMAL_TOC)
diff --git a/arch/powerpc/perf/Makefile b/arch/powerpc/perf/Makefile
index 3f3a5ce66495..225c9c86d7c0 100644
--- a/arch/powerpc/perf/Makefile
+++ b/arch/powerpc/perf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 obj-$(CONFIG_PERF_EVENTS)	+= callchain.o perf_regs.o
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 2e3eb7431571..9e3da168d54c 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -793,6 +793,11 @@ void perf_event_print_debug(void)
 	u32 pmcs[MAX_HWEVENTS];
 	int i;
 
+	if (!ppmu) {
+		pr_info("Performance monitor hardware not registered.\n");
+		return;
+	}
+
 	if (!ppmu->n_counter)
 		return;
 
diff --git a/arch/powerpc/perf/hv-24x7-catalog.h b/arch/powerpc/perf/hv-24x7-catalog.h
index 69e2e1faf902..5fab5a397da9 100644
--- a/arch/powerpc/perf/hv-24x7-catalog.h
+++ b/arch/powerpc/perf/hv-24x7-catalog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_POWERPC_PERF_HV_24X7_CATALOG_H_
 #define LINUX_POWERPC_PERF_HV_24X7_CATALOG_H_
 
diff --git a/arch/powerpc/perf/hv-24x7-domains.h b/arch/powerpc/perf/hv-24x7-domains.h
index 49c1efd50045..6f91f62e0aa6 100644
--- a/arch/powerpc/perf/hv-24x7-domains.h
+++ b/arch/powerpc/perf/hv-24x7-domains.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * DOMAIN(name, num, index_kind, is_physical)
diff --git a/arch/powerpc/perf/hv-24x7.h b/arch/powerpc/perf/hv-24x7.h
index 5092c4a222a6..ae4ae4813e16 100644
--- a/arch/powerpc/perf/hv-24x7.h
+++ b/arch/powerpc/perf/hv-24x7.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_POWERPC_PERF_HV_24X7_H_
 #define LINUX_POWERPC_PERF_HV_24X7_H_
 
diff --git a/arch/powerpc/perf/hv-common.c b/arch/powerpc/perf/hv-common.c
index 7dce8f109967..0370518edd20 100644
--- a/arch/powerpc/perf/hv-common.c
+++ b/arch/powerpc/perf/hv-common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/io.h>
 #include <asm/hvcall.h>
 
diff --git a/arch/powerpc/perf/hv-common.h b/arch/powerpc/perf/hv-common.h
index 349aaba4d2d1..2cce17bc321c 100644
--- a/arch/powerpc/perf/hv-common.h
+++ b/arch/powerpc/perf/hv-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_POWERPC_PERF_HV_COMMON_H_
 #define LINUX_POWERPC_PERF_HV_COMMON_H_
 
diff --git a/arch/powerpc/perf/hv-gpci-requests.h b/arch/powerpc/perf/hv-gpci-requests.h
index acd17648cd18..e608f9db12dd 100644
--- a/arch/powerpc/perf/hv-gpci-requests.h
+++ b/arch/powerpc/perf/hv-gpci-requests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include "req-gen/_begin.h"
 
diff --git a/arch/powerpc/perf/hv-gpci.h b/arch/powerpc/perf/hv-gpci.h
index 86ede8275961..a3053eda5dcc 100644
--- a/arch/powerpc/perf/hv-gpci.h
+++ b/arch/powerpc/perf/hv-gpci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_POWERPC_PERF_HV_GPCI_H_
 #define LINUX_POWERPC_PERF_HV_GPCI_H_
 
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 9ccac86f3463..36344117c680 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -399,6 +399,20 @@ static void nest_imc_counters_release(struct perf_event *event)
 
 	/* Take the mutex lock for this node and then decrement the reference count */
 	mutex_lock(&ref->lock);
+	if (ref->refc == 0) {
+		/*
+		 * The scenario where this is true is, when perf session is
+		 * started, followed by offlining of all cpus in a given node.
+		 *
+		 * In the cpuhotplug offline path, ppc_nest_imc_cpu_offline()
+		 * function set the ref->count to zero, if the cpu which is
+		 * about to offline is the last cpu in a given node and make
+		 * an OPAL call to disable the engine in that node.
+		 *
+		 */
+		mutex_unlock(&ref->lock);
+		return;
+	}
 	ref->refc--;
 	if (ref->refc == 0) {
 		rc = opal_imc_counters_stop(OPAL_IMC_COUNTERS_NEST,
@@ -523,8 +537,8 @@ static int core_imc_mem_init(int cpu, int size)
 
 	/* We need only vbase for core counters */
 	mem_info->vbase = page_address(alloc_pages_node(phys_id,
-					  GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE,
-					  get_order(size)));
+					  GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |
+					  __GFP_NOWARN, get_order(size)));
 	if (!mem_info->vbase)
 		return -ENOMEM;
 
@@ -593,6 +607,20 @@ static int ppc_core_imc_cpu_offline(unsigned int cpu)
 	if (!cpumask_test_and_clear_cpu(cpu, &core_imc_cpumask))
 		return 0;
 
+	/*
+	 * Check whether core_imc is registered. We could end up here
+	 * if the cpuhotplug callback registration fails. i.e, callback
+	 * invokes the offline path for all sucessfully registered cpus.
+	 * At this stage, core_imc pmu will not be registered and we
+	 * should return here.
+	 *
+	 * We return with a zero since this is not an offline failure.
+	 * And cpuhp_setup_state() returns the actual failure reason
+	 * to the caller, which inturn will call the cleanup routine.
+	 */
+	if (!core_imc_pmu->pmu.event_init)
+		return 0;
+
 	/* Find any online cpu in that core except the current "cpu" */
 	ncpu = cpumask_any_but(cpu_sibling_mask(cpu), cpu);
 
@@ -646,6 +674,20 @@ static void core_imc_counters_release(struct perf_event *event)
 		return;
 
 	mutex_lock(&ref->lock);
+	if (ref->refc == 0) {
+		/*
+		 * The scenario where this is true is, when perf session is
+		 * started, followed by offlining of all cpus in a given core.
+		 *
+		 * In the cpuhotplug offline path, ppc_core_imc_cpu_offline()
+		 * function set the ref->count to zero, if the cpu which is
+		 * about to offline is the last cpu in a given core and make
+		 * an OPAL call to disable the engine in that core.
+		 *
+		 */
+		mutex_unlock(&ref->lock);
+		return;
+	}
 	ref->refc--;
 	if (ref->refc == 0) {
 		rc = opal_imc_counters_stop(OPAL_IMC_COUNTERS_CORE,
@@ -763,8 +805,8 @@ static int thread_imc_mem_alloc(int cpu_id, int size)
 		 * free the memory in cpu offline path.
 		 */
 		local_mem = page_address(alloc_pages_node(phys_id,
-				  GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE,
-				  get_order(size)));
+				  GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE |
+				  __GFP_NOWARN, get_order(size)));
 		if (!local_mem)
 			return -ENOMEM;
 
@@ -1076,7 +1118,7 @@ static int init_nest_pmu_ref(void)
 
 static void cleanup_all_core_imc_memory(void)
 {
-	int i, nr_cores = num_present_cpus() / threads_per_core;
+	int i, nr_cores = DIV_ROUND_UP(num_present_cpus(), threads_per_core);
 	struct imc_mem_info *ptr = core_imc_pmu->mem_info;
 	int size = core_imc_pmu->counter_mem_size;
 
@@ -1148,7 +1190,8 @@ static void imc_common_cpuhp_mem_free(struct imc_pmu *pmu_ptr)
 	}
 
 	/* Only free the attr_groups which are dynamically allocated  */
-	kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]->attrs);
+	if (pmu_ptr->attr_groups[IMC_EVENT_ATTR])
+		kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]->attrs);
 	kfree(pmu_ptr->attr_groups[IMC_EVENT_ATTR]);
 	kfree(pmu_ptr);
 	return;
@@ -1183,7 +1226,7 @@ static int imc_mem_init(struct imc_pmu *pmu_ptr, struct device_node *parent,
 		if (!pmu_ptr->pmu.name)
 			return -ENOMEM;
 
-		nr_cores = num_present_cpus() / threads_per_core;
+		nr_cores = DIV_ROUND_UP(num_present_cpus(), threads_per_core);
 		pmu_ptr->mem_info = kcalloc(nr_cores, sizeof(struct imc_mem_info),
 								GFP_KERNEL);
 
diff --git a/arch/powerpc/perf/req-gen/_begin.h b/arch/powerpc/perf/req-gen/_begin.h
index acfb17a55c16..549f8782c52d 100644
--- a/arch/powerpc/perf/req-gen/_begin.h
+++ b/arch/powerpc/perf/req-gen/_begin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Include paths to be used in interface defining headers */
 #ifndef POWERPC_PERF_REQ_GEN_H_
 #define POWERPC_PERF_REQ_GEN_H_
diff --git a/arch/powerpc/perf/req-gen/_clear.h b/arch/powerpc/perf/req-gen/_clear.h
index 422974f89573..67c3859157f3 100644
--- a/arch/powerpc/perf/req-gen/_clear.h
+++ b/arch/powerpc/perf/req-gen/_clear.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef __field_
 #undef __count_
diff --git a/arch/powerpc/perf/req-gen/_request-begin.h b/arch/powerpc/perf/req-gen/_request-begin.h
index f6d98642cf1d..7c74c2ab4c0c 100644
--- a/arch/powerpc/perf/req-gen/_request-begin.h
+++ b/arch/powerpc/perf/req-gen/_request-begin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #define REQUEST(r_contents) \
 	REQUEST_(REQUEST_NAME, REQUEST_NUM, REQUEST_IDX_KIND, I(r_contents))
diff --git a/arch/powerpc/perf/req-gen/_request-end.h b/arch/powerpc/perf/req-gen/_request-end.h
index 5573be6c3588..7d9f4046c2ca 100644
--- a/arch/powerpc/perf/req-gen/_request-end.h
+++ b/arch/powerpc/perf/req-gen/_request-end.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef REQUEST
 #undef __field
 #undef __array
diff --git a/arch/powerpc/perf/req-gen/perf.h b/arch/powerpc/perf/req-gen/perf.h
index 1b122469323d..871a9a1766c2 100644
--- a/arch/powerpc/perf/req-gen/perf.h
+++ b/arch/powerpc/perf/req-gen/perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_POWERPC_PERF_REQ_GEN_PERF_H_
 #define LINUX_POWERPC_PERF_REQ_GEN_PERF_H_
 
diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
index abc24501c4c0..60254a321a91 100644
--- a/arch/powerpc/platforms/40x/Kconfig
+++ b/arch/powerpc/platforms/40x/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ACADIA
 	bool "Acadia"
 	depends on 40x
diff --git a/arch/powerpc/platforms/44x/44x.h b/arch/powerpc/platforms/44x/44x.h
index 63f703ecd23c..0e912a6a0b9a 100644
--- a/arch/powerpc/platforms/44x/44x.h
+++ b/arch/powerpc/platforms/44x/44x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __POWERPC_PLATFORMS_44X_44X_H
 #define __POWERPC_PLATFORMS_44X_44X_H
 
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 01cb109ebf17..a6011422b861 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_47x
 	bool "Support for 47x variant"
 	depends on 44x
diff --git a/arch/powerpc/platforms/44x/Makefile b/arch/powerpc/platforms/44x/Makefile
index 2c5651992369..1b78c6af821a 100644
--- a/arch/powerpc/platforms/44x/Makefile
+++ b/arch/powerpc/platforms/44x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y	+= misc_44x.o machine_check.o
 ifneq ($(CONFIG_PPC4xx_CPM),y)
 obj-y	+= idle.o
diff --git a/arch/powerpc/platforms/44x/virtex_ml510.c b/arch/powerpc/platforms/44x/virtex_ml510.c
index 1fdb8748638d..349f218b335c 100644
--- a/arch/powerpc/platforms/44x/virtex_ml510.c
+++ b/arch/powerpc/platforms/44x/virtex_ml510.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/i8259.h>
 #include <linux/pci.h>
 #include "44x.h"
diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
index bf7ae5cbd07a..b59eab6cbb1b 100644
--- a/arch/powerpc/platforms/512x/Kconfig
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_MPC512x
 	bool "512x-based boards"
 	depends on 6xx
diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile
index f47d422953df..2daf22ee26a0 100644
--- a/arch/powerpc/platforms/512x/Makefile
+++ b/arch/powerpc/platforms/512x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Freescale PowerPC 512x linux kernel.
 #
diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig
index e4c745981912..55a587070342 100644
--- a/arch/powerpc/platforms/52xx/Kconfig
+++ b/arch/powerpc/platforms/52xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_MPC52xx
 	bool "52xx-based boards"
 	depends on 6xx
diff --git a/arch/powerpc/platforms/52xx/Makefile b/arch/powerpc/platforms/52xx/Makefile
index 4e62486791e9..ff2f86fe5429 100644
--- a/arch/powerpc/platforms/52xx/Makefile
+++ b/arch/powerpc/platforms/52xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for 52xx based boards
 #
diff --git a/arch/powerpc/platforms/52xx/lite5200_pm.c b/arch/powerpc/platforms/52xx/lite5200_pm.c
index 870b70f5d1bd..e7da22d1df87 100644
--- a/arch/powerpc/platforms/52xx/lite5200_pm.c
+++ b/arch/powerpc/platforms/52xx/lite5200_pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/suspend.h>
 #include <asm/io.h>
diff --git a/arch/powerpc/platforms/52xx/lite5200_sleep.S b/arch/powerpc/platforms/52xx/lite5200_sleep.S
index 08ab6fefcf7a..3a9969c429b3 100644
--- a/arch/powerpc/platforms/52xx/lite5200_sleep.S
+++ b/arch/powerpc/platforms/52xx/lite5200_sleep.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/reg.h>
 #include <asm/ppc_asm.h>
 #include <asm/processor.h>
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
index 8310e8b5b57f..31d3515672f3 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/suspend.h>
 #include <linux/io.h>
diff --git a/arch/powerpc/platforms/52xx/mpc52xx_sleep.S b/arch/powerpc/platforms/52xx/mpc52xx_sleep.S
index 4dc170b0ae18..a66eb311b639 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_sleep.S
+++ b/arch/powerpc/platforms/52xx/mpc52xx_sleep.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/reg.h>
 #include <asm/ppc_asm.h>
 #include <asm/processor.h>
diff --git a/arch/powerpc/platforms/82xx/Kconfig b/arch/powerpc/platforms/82xx/Kconfig
index 994d1a959e20..6e04099361b9 100644
--- a/arch/powerpc/platforms/82xx/Kconfig
+++ b/arch/powerpc/platforms/82xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig PPC_82xx
 	bool "82xx-based boards (PQ II)"
 	depends on 6xx
diff --git a/arch/powerpc/platforms/82xx/Makefile b/arch/powerpc/platforms/82xx/Makefile
index 455fe21e37c4..8d713c601bf2 100644
--- a/arch/powerpc/platforms/82xx/Makefile
+++ b/arch/powerpc/platforms/82xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PowerPC 82xx linux kernel.
 #
diff --git a/arch/powerpc/platforms/82xx/pq2.h b/arch/powerpc/platforms/82xx/pq2.h
index 3080ce3441c1..902ef0bd4949 100644
--- a/arch/powerpc/platforms/82xx/pq2.h
+++ b/arch/powerpc/platforms/82xx/pq2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PQ2_H
 #define _PQ2_H
 
diff --git a/arch/powerpc/platforms/83xx/Kconfig b/arch/powerpc/platforms/83xx/Kconfig
index 4ef7f1cd05b7..7e38b7b71a5a 100644
--- a/arch/powerpc/platforms/83xx/Kconfig
+++ b/arch/powerpc/platforms/83xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig PPC_83xx
 	bool "83xx-based boards"
 	depends on 6xx
diff --git a/arch/powerpc/platforms/83xx/Makefile b/arch/powerpc/platforms/83xx/Makefile
index ed95bfcbcbff..bb4720897f6a 100644
--- a/arch/powerpc/platforms/83xx/Makefile
+++ b/arch/powerpc/platforms/83xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PowerPC 83xx linux kernel.
 #
diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h
index 636eb9d0401a..459145623334 100644
--- a/arch/powerpc/platforms/83xx/mpc83xx.h
+++ b/arch/powerpc/platforms/83xx/mpc83xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MPC83XX_H__
 #define __MPC83XX_H__
 
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 47b389dc4938..68920d42b4bc 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig FSL_SOC_BOOKE
 	bool "Freescale Book-E Machine Type"
 	depends on PPC_85xx || PPC_BOOK3E
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index fe19dad568e2..d1dd0dca5ebf 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PowerPC 85xx linux kernel.
 #
diff --git a/arch/powerpc/platforms/85xx/mpc85xx.h b/arch/powerpc/platforms/85xx/mpc85xx.h
index 39056f6befeb..fa23f9b0592c 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx.h
+++ b/arch/powerpc/platforms/85xx/mpc85xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MPC85xx_H
 #define MPC85xx_H
 extern int mpc85xx_common_publish_devices(void);
diff --git a/arch/powerpc/platforms/85xx/smp.h b/arch/powerpc/platforms/85xx/smp.h
index 0b20ae315c53..3936ff6dfbdb 100644
--- a/arch/powerpc/platforms/85xx/smp.h
+++ b/arch/powerpc/platforms/85xx/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef POWERPC_85XX_SMP_H_
 #define POWERPC_85XX_SMP_H_ 1
 
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index ce619bd1f82d..bcd179d3ed92 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_86xx
 menuconfig PPC_86xx
 	bool "86xx-based boards"
diff --git a/arch/powerpc/platforms/86xx/Makefile b/arch/powerpc/platforms/86xx/Makefile
index 01958fedc3f2..2c04449be107 100644
--- a/arch/powerpc/platforms/86xx/Makefile
+++ b/arch/powerpc/platforms/86xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PowerPC 86xx linux kernel.
 #
diff --git a/arch/powerpc/platforms/8xx/Kconfig b/arch/powerpc/platforms/8xx/Kconfig
index 536b0c5d5ce3..e2089d3de00c 100644
--- a/arch/powerpc/platforms/8xx/Kconfig
+++ b/arch/powerpc/platforms/8xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config CPM1
 	bool
 	select CPM
diff --git a/arch/powerpc/platforms/8xx/Makefile b/arch/powerpc/platforms/8xx/Makefile
index f9af3218bd9c..708ab099e886 100644
--- a/arch/powerpc/platforms/8xx/Makefile
+++ b/arch/powerpc/platforms/8xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PowerPC 8xx linux kernel.
 #
diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
index 1917d69f84df..e1274db53d48 100644
--- a/arch/powerpc/platforms/8xx/m8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1995  Linus Torvalds
  *  Adapted from 'alpha' version by Gary Thomas
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 4fd64d3f5c44..d5e34ce5fd5d 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Platform support"
 
 source "arch/powerpc/platforms/powernv/Kconfig"
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 13663efc1d31..a78f255111f2 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC64
 	bool "64-bit kernel"
 	default n
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index d7a55ecfaee5..e46bb7ea710f 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
diff --git a/arch/powerpc/platforms/amigaone/Kconfig b/arch/powerpc/platforms/amigaone/Kconfig
index 128de25cc284..03dc1e37c25b 100644
--- a/arch/powerpc/platforms/amigaone/Kconfig
+++ b/arch/powerpc/platforms/amigaone/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config AMIGAONE
 	bool "Eyetech AmigaOne/MAI Teron"
 	depends on 6xx && BROKEN_ON_SMP
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index a4522f09d65e..9f5958f16923 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_CELL
 	bool
 	default n
diff --git a/arch/powerpc/platforms/cell/Makefile b/arch/powerpc/platforms/cell/Makefile
index 00464305763d..d5f808e8a5f3 100644
--- a/arch/powerpc/platforms/cell/Makefile
+++ b/arch/powerpc/platforms/cell/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PPC_CELL_COMMON)		+= cbe_regs.o interrupt.o pervasive.o
 
 obj-$(CONFIG_PPC_CELL_NATIVE)		+= iommu.o setup.o spider-pic.o \
diff --git a/arch/powerpc/platforms/cell/interrupt.h b/arch/powerpc/platforms/cell/interrupt.h
index 4f60ae6ca358..a47902248541 100644
--- a/arch/powerpc/platforms/cell/interrupt.h
+++ b/arch/powerpc/platforms/cell/interrupt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_CELL_PIC_H
 #define ASM_CELL_PIC_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/platforms/cell/ras.h b/arch/powerpc/platforms/cell/ras.h
index eb7ee54c82a0..6c2e6bc0062e 100644
--- a/arch/powerpc/platforms/cell/ras.h
+++ b/arch/powerpc/platforms/cell/ras.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef RAS_H
 #define RAS_H
 
diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile
index 52a7d2596d30..52e4c80ec8d0 100644
--- a/arch/powerpc/platforms/cell/spufs/Makefile
+++ b/arch/powerpc/platforms/cell/spufs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_SPU_FS) += spufs.o
 spufs-y += inode.o file.o context.o syscalls.o
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index cfacbee24d7b..07f82d7395ff 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define DEBUG
 
 #include <linux/wait.h>
diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.h b/arch/powerpc/platforms/cell/spufs/sputrace.h
index db2656aa4103..d557e999b662 100644
--- a/arch/powerpc/platforms/cell/spufs/sputrace.h
+++ b/arch/powerpc/platforms/cell/spufs/sputrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_SPUFS_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_SPUFS_H
 
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index 0d290ea83dc1..157e046e6e93 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/export.h>
diff --git a/arch/powerpc/platforms/chrp/Kconfig b/arch/powerpc/platforms/chrp/Kconfig
index d3cdab582c5d..ead99eff875a 100644
--- a/arch/powerpc/platforms/chrp/Kconfig
+++ b/arch/powerpc/platforms/chrp/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_CHRP
 	bool "Common Hardware Reference Platform (CHRP) based machines"
 	depends on 6xx
diff --git a/arch/powerpc/platforms/chrp/chrp.h b/arch/powerpc/platforms/chrp/chrp.h
index 63f0aee4c158..a5a7c338caf9 100644
--- a/arch/powerpc/platforms/chrp/chrp.h
+++ b/arch/powerpc/platforms/chrp/chrp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Declarations of CHRP platform-specific things.
  */
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 27264794f5c0..0f512d35f7c5 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * CHRP pci routines.
  */
diff --git a/arch/powerpc/platforms/chrp/pegasos_eth.c b/arch/powerpc/platforms/chrp/pegasos_eth.c
index 19760712b39d..485cf5ef73d4 100644
--- a/arch/powerpc/platforms/chrp/pegasos_eth.c
+++ b/arch/powerpc/platforms/chrp/pegasos_eth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005 Sven Luther <sl@bplan-gmbh.de>
  *  Thanks to :
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 0ce1b45f02a8..481ed133e04b 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1995  Linus Torvalds
  *  Adapted from 'alpha' version by Gary Thomas
diff --git a/arch/powerpc/platforms/chrp/smp.c b/arch/powerpc/platforms/chrp/smp.c
index 14515040f7cd..f7bb6cb8d1e3 100644
--- a/arch/powerpc/platforms/chrp/smp.c
+++ b/arch/powerpc/platforms/chrp/smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Smp support for CHRP machines.
  *
diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c
index f803f4b8ab6f..03d115aaa191 100644
--- a/arch/powerpc/platforms/chrp/time.c
+++ b/arch/powerpc/platforms/chrp/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
  *
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index a25f496c2ef9..9fb2d5912c5a 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config EMBEDDED6xx
 	bool "Embedded 6xx/7xx/7xxx-based boards"
 	depends on 6xx && BROKEN_ON_SMP
diff --git a/arch/powerpc/platforms/embedded6xx/Makefile b/arch/powerpc/platforms/embedded6xx/Makefile
index f126a2a09981..12154e3257ad 100644
--- a/arch/powerpc/platforms/embedded6xx/Makefile
+++ b/arch/powerpc/platforms/embedded6xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the 6xx/7xx/7xxxx linux kernel.
 #
diff --git a/arch/powerpc/platforms/maple/Kconfig b/arch/powerpc/platforms/maple/Kconfig
index e359d0db092c..376d0be36b66 100644
--- a/arch/powerpc/platforms/maple/Kconfig
+++ b/arch/powerpc/platforms/maple/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_MAPLE
 	depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
 	bool "Maple 970FX Evaluation Board"
diff --git a/arch/powerpc/platforms/maple/maple.h b/arch/powerpc/platforms/maple/maple.h
index eecfa182b06e..d10f4af3a42e 100644
--- a/arch/powerpc/platforms/maple/maple.h
+++ b/arch/powerpc/platforms/maple/maple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Declarations for maple-specific code.
  *
diff --git a/arch/powerpc/platforms/pasemi/Kconfig b/arch/powerpc/platforms/pasemi/Kconfig
index c7f1dbe94de7..d458a791d35b 100644
--- a/arch/powerpc/platforms/pasemi/Kconfig
+++ b/arch/powerpc/platforms/pasemi/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_PASEMI
 	depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
 	bool "PA Semi SoC-based platforms"
diff --git a/arch/powerpc/platforms/pasemi/pasemi.h b/arch/powerpc/platforms/pasemi/pasemi.h
index 74cbcb357612..329d2a619254 100644
--- a/arch/powerpc/platforms/pasemi/pasemi.h
+++ b/arch/powerpc/platforms/pasemi/pasemi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PASEMI_PASEMI_H
 #define _PASEMI_PASEMI_H
 
diff --git a/arch/powerpc/platforms/powermac/Kconfig b/arch/powerpc/platforms/powermac/Kconfig
index 43c606268baf..fc90cb35cea3 100644
--- a/arch/powerpc/platforms/powermac/Kconfig
+++ b/arch/powerpc/platforms/powermac/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_PMAC
 	bool "Apple PowerMac based machines"
 	depends on PPC_BOOK3S && CPU_BIG_ENDIAN
diff --git a/arch/powerpc/platforms/powermac/Makefile b/arch/powerpc/platforms/powermac/Makefile
index 1eb7b45e017d..f2839eed0f89 100644
--- a/arch/powerpc/platforms/powermac/Makefile
+++ b/arch/powerpc/platforms/powermac/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS_bootx_init.o  		+= -fPIC
 
 ifdef CONFIG_FUNCTION_TRACER
diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c
index 860159d46ab8..fd2e210559c8 100644
--- a/arch/powerpc/platforms/powermac/pfunc_base.c
+++ b/arch/powerpc/platforms/powermac/pfunc_base.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/delay.h>
diff --git a/arch/powerpc/platforms/powermac/pmac.h b/arch/powerpc/platforms/powermac/pmac.h
index e7f8163d6769..6f15b8804e9b 100644
--- a/arch/powerpc/platforms/powermac/pmac.h
+++ b/arch/powerpc/platforms/powermac/pmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PMAC_H__
 #define __PMAC_H__
 
diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c
index 8680bb69795d..274af6fa388e 100644
--- a/arch/powerpc/platforms/powermac/time.c
+++ b/arch/powerpc/platforms/powermac/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for periodic interrupts (100 per second) and for getting
  * the current time from the RTC on Power Macintoshes.
diff --git a/arch/powerpc/platforms/powermac/udbg_adb.c b/arch/powerpc/platforms/powermac/udbg_adb.c
index 366bd221edec..64f38f0d15ed 100644
--- a/arch/powerpc/platforms/powermac/udbg_adb.c
+++ b/arch/powerpc/platforms/powermac/udbg_adb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig
index 340cbe263b33..f8dc98d3dc01 100644
--- a/arch/powerpc/platforms/powernv/Kconfig
+++ b/arch/powerpc/platforms/powernv/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_POWERNV
 	depends on PPC64 && PPC_BOOK3S
 	bool "IBM PowerNV (Non-Virtualized) platform support"
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index 37d60f7dd86d..7a31c26500e6 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y			+= setup.o opal-wrappers.o opal.o opal-async.o idle.o
 obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
 obj-y			+= rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o
diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
index 9f59041a172b..443d5ca71995 100644
--- a/arch/powerpc/platforms/powernv/idle.c
+++ b/arch/powerpc/platforms/powernv/idle.c
@@ -393,7 +393,13 @@ static void pnv_program_cpu_hotplug_lpcr(unsigned int cpu, u64 lpcr_val)
 	u64 pir = get_hard_smp_processor_id(cpu);
 
 	mtspr(SPRN_LPCR, lpcr_val);
-	opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val);
+
+	/*
+	 * Program the LPCR via stop-api only if the deepest stop state
+	 * can lose hypervisor context.
+	 */
+	if (supported_cpuidle_states & OPAL_PM_LOSE_FULL_CONTEXT)
+		opal_slw_set_reg(pir, SPRN_LPCR, lpcr_val);
 }
 
 /*
diff --git a/arch/powerpc/platforms/powernv/opal-msglog.c b/arch/powerpc/platforms/powernv/opal-msglog.c
index 7a9cde0cfbd1..acd3206dfae3 100644
--- a/arch/powerpc/platforms/powernv/opal-msglog.c
+++ b/arch/powerpc/platforms/powernv/opal-msglog.c
@@ -43,7 +43,7 @@ ssize_t opal_msglog_copy(char *to, loff_t pos, size_t count)
 	if (!opal_memcons)
 		return -ENODEV;
 
-	out_pos = be32_to_cpu(ACCESS_ONCE(opal_memcons->out_pos));
+	out_pos = be32_to_cpu(READ_ONCE(opal_memcons->out_pos));
 
 	/* Now we've read out_pos, put a barrier in before reading the new
 	 * data it points to in conbuf. */
diff --git a/arch/powerpc/platforms/powernv/opal-tracepoints.c b/arch/powerpc/platforms/powernv/opal-tracepoints.c
index 3c447002edff..1ab7d26c0a2c 100644
--- a/arch/powerpc/platforms/powernv/opal-tracepoints.c
+++ b/arch/powerpc/platforms/powernv/opal-tracepoints.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/percpu.h>
 #include <linux/jump_label.h>
 #include <asm/trace.h>
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index a95273c524f6..b47f9406d97e 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __POWERNV_PCI_H
 #define __POWERNV_PCI_H
 
diff --git a/arch/powerpc/platforms/powernv/powernv.h b/arch/powerpc/platforms/powernv/powernv.h
index a159d48573d7..94f17ab1374b 100644
--- a/arch/powerpc/platforms/powernv/powernv.h
+++ b/arch/powerpc/platforms/powernv/powernv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _POWERNV_H
 #define _POWERNV_H
 
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index 897aa1400eb8..bbb73aa0eb8f 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -272,7 +272,15 @@ static void pnv_kexec_cpu_down(int crash_shutdown, int secondary)
 #ifdef CONFIG_MEMORY_HOTPLUG_SPARSE
 static unsigned long pnv_memory_block_size(void)
 {
-	return 256UL * 1024 * 1024;
+	/*
+	 * We map the kernel linear region with 1GB large pages on radix. For
+	 * memory hot unplug to work our memory block size must be at least
+	 * this size.
+	 */
+	if (radix_enabled())
+		return 1UL * 1024 * 1024 * 1024;
+	else
+		return 256UL * 1024 * 1024;
 }
 #endif
 
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig
index b27f40f26efc..6f7525555b19 100644
--- a/arch/powerpc/platforms/ps3/Kconfig
+++ b/arch/powerpc/platforms/ps3/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_PS3
 	bool "Sony PS3"
 	depends on PPC64 && PPC_BOOK3S && CPU_BIG_ENDIAN
diff --git a/arch/powerpc/platforms/ps3/Makefile b/arch/powerpc/platforms/ps3/Makefile
index 02b9e636dab7..86bf2967a8d4 100644
--- a/arch/powerpc/platforms/ps3/Makefile
+++ b/arch/powerpc/platforms/ps3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += setup.o mm.o time.o hvcall.o htab.o repository.o
 obj-y += interrupt.o exports.o os-area.o
 obj-y += system-bus.o
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 71dd69d9ec64..0c698fd6d491 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_PSERIES
 	depends on PPC64 && PPC_BOOK3S
 	bool "IBM pSeries & new (POWER5-based) iSeries"
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 8f4ba089e802..13eede60c24d 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_PPC64)			:= $(NO_MINIMAL_TOC)
 ccflags-$(CONFIG_PPC_PSERIES_DEBUG)	+= -DDEBUG
 
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 783f36364690..e45b5f10645a 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -266,7 +266,6 @@ int dlpar_attach_node(struct device_node *dn, struct device_node *parent)
 		return rc;
 	}
 
-	of_node_put(dn->parent);
 	return 0;
 }
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index fc0d8f97c03a..fadb95efbb9e 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -462,15 +462,19 @@ static ssize_t dlpar_cpu_add(u32 drc_index)
 	}
 
 	dn = dlpar_configure_connector(cpu_to_be32(drc_index), parent);
-	of_node_put(parent);
 	if (!dn) {
 		pr_warn("Failed call to configure-connector, drc index: %x\n",
 			drc_index);
 		dlpar_release_drc(drc_index);
+		of_node_put(parent);
 		return -EINVAL;
 	}
 
 	rc = dlpar_attach_node(dn, parent);
+
+	/* Regardless we are done with parent now */
+	of_node_put(parent);
+
 	if (rc) {
 		saved_rc = rc;
 		pr_warn("Failed to attach node %s, rc: %d, drc index: %x\n",
diff --git a/arch/powerpc/platforms/pseries/mobility.c b/arch/powerpc/platforms/pseries/mobility.c
index 210ce632d63e..f7042ad492ba 100644
--- a/arch/powerpc/platforms/pseries/mobility.c
+++ b/arch/powerpc/platforms/pseries/mobility.c
@@ -226,8 +226,10 @@ static int add_dt_node(__be32 parent_phandle, __be32 drc_index)
 		return -ENOENT;
 
 	dn = dlpar_configure_connector(drc_index, parent_dn);
-	if (!dn)
+	if (!dn) {
+		of_node_put(parent_dn);
 		return -ENOENT;
+	}
 
 	rc = dlpar_attach_node(dn, parent_dn);
 	if (rc)
diff --git a/arch/powerpc/platforms/pseries/of_helpers.c b/arch/powerpc/platforms/pseries/of_helpers.c
index 2798933c0e38..7e75101fa522 100644
--- a/arch/powerpc/platforms/pseries/of_helpers.c
+++ b/arch/powerpc/platforms/pseries/of_helpers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/err.h>
 #include <linux/slab.h>
diff --git a/arch/powerpc/platforms/pseries/of_helpers.h b/arch/powerpc/platforms/pseries/of_helpers.h
index bb83d39aef65..decad6553d8f 100644
--- a/arch/powerpc/platforms/pseries/of_helpers.h
+++ b/arch/powerpc/platforms/pseries/of_helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PSERIES_OF_HELPERS_H
 #define _PSERIES_OF_HELPERS_H
 
diff --git a/arch/powerpc/platforms/pseries/offline_states.h b/arch/powerpc/platforms/pseries/offline_states.h
index 08672d9136ab..51414aee2862 100644
--- a/arch/powerpc/platforms/pseries/offline_states.h
+++ b/arch/powerpc/platforms/pseries/offline_states.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OFFLINE_STATES_H_
 #define _OFFLINE_STATES_H_
 
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index e76aefae2aa2..89726f07d249 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -151,7 +151,7 @@ static ssize_t store_hibernate(struct device *dev,
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+	if (!alloc_cpumask_var(&offline_mask, GFP_KERNEL))
 		return -ENOMEM;
 
 	stream_id = simple_strtoul(buf, NULL, 16);
diff --git a/arch/powerpc/purgatory/Makefile b/arch/powerpc/purgatory/Makefile
index ac8793c13348..30e05decbb4c 100644
--- a/arch/powerpc/purgatory/Makefile
+++ b/arch/powerpc/purgatory/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 targets += trampoline.o purgatory.ro kexec-purgatory.c
 
 LDFLAGS_purgatory.ro := -e purgatory_start -r --no-undefined
diff --git a/arch/powerpc/sysdev/Kconfig b/arch/powerpc/sysdev/Kconfig
index caf882e749dc..bcef2ac56479 100644
--- a/arch/powerpc/sysdev/Kconfig
+++ b/arch/powerpc/sysdev/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
 #
diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index 79416fa2e3ba..0baba21404dc 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 ccflags-$(CONFIG_PPC64)		:= $(NO_MINIMAL_TOC)
diff --git a/arch/powerpc/sysdev/cpm1.c b/arch/powerpc/sysdev/cpm1.c
index c651e668996b..c6f154b602fb 100644
--- a/arch/powerpc/sysdev/cpm1.c
+++ b/arch/powerpc/sysdev/cpm1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * General Purpose functions for the global management of the
  * Communication Processor Module.
diff --git a/arch/powerpc/sysdev/cpm2_pic.h b/arch/powerpc/sysdev/cpm2_pic.h
index 2c5f70c24485..a8a26951f311 100644
--- a/arch/powerpc/sysdev/cpm2_pic.h
+++ b/arch/powerpc/sysdev/cpm2_pic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_KERNEL_CPM2_H
 #define _PPC_KERNEL_CPM2_H
 
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index 9234be1e66f5..5011ffea4e4b 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -71,6 +71,8 @@
 #define RIWAR_WRTYP_ALLOC	0x00006000
 #define RIWAR_SIZE_MASK		0x0000003F
 
+static DEFINE_SPINLOCK(fsl_rio_config_lock);
+
 #define __fsl_read_rio_config(x, addr, err, op)		\
 	__asm__ __volatile__(				\
 		"1:	"op" %1,0(%2)\n"		\
@@ -184,6 +186,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
 			u8 hopcount, u32 offset, int len, u32 *val)
 {
 	struct rio_priv *priv = mport->priv;
+	unsigned long flags;
 	u8 *data;
 	u32 rval, err = 0;
 
@@ -197,6 +200,8 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
 	if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
 		return -EINVAL;
 
+	spin_lock_irqsave(&fsl_rio_config_lock, flags);
+
 	out_be32(&priv->maint_atmu_regs->rowtar,
 		 (destid << 22) | (hopcount << 12) | (offset >> 12));
 	out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
@@ -213,6 +218,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
 		__fsl_read_rio_config(rval, data, err, "lwz");
 		break;
 	default:
+		spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
 		return -EINVAL;
 	}
 
@@ -221,6 +227,7 @@ fsl_rio_config_read(struct rio_mport *mport, int index, u16 destid,
 			 err, destid, hopcount, offset);
 	}
 
+	spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
 	*val = rval;
 
 	return err;
@@ -244,7 +251,10 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
 			u8 hopcount, u32 offset, int len, u32 val)
 {
 	struct rio_priv *priv = mport->priv;
+	unsigned long flags;
 	u8 *data;
+	int ret = 0;
+
 	pr_debug
 		("fsl_rio_config_write:"
 		" index %d destid %d hopcount %d offset %8.8x len %d val %8.8x\n",
@@ -255,6 +265,8 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
 	if (offset > (0x1000000 - len) || !IS_ALIGNED(offset, len))
 		return -EINVAL;
 
+	spin_lock_irqsave(&fsl_rio_config_lock, flags);
+
 	out_be32(&priv->maint_atmu_regs->rowtar,
 		 (destid << 22) | (hopcount << 12) | (offset >> 12));
 	out_be32(&priv->maint_atmu_regs->rowtear, (destid >> 10));
@@ -271,10 +283,11 @@ fsl_rio_config_write(struct rio_mport *mport, int index, u16 destid,
 		out_be32((u32 *) data, val);
 		break;
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
 	}
+	spin_unlock_irqrestore(&fsl_rio_config_lock, flags);
 
-	return 0;
+	return ret;
 }
 
 static void fsl_rio_inbound_mem_init(struct rio_priv *priv)
diff --git a/arch/powerpc/sysdev/fsl_rmu.c b/arch/powerpc/sysdev/fsl_rmu.c
index ab7a74c75be8..88b35a3dcdc5 100644
--- a/arch/powerpc/sysdev/fsl_rmu.c
+++ b/arch/powerpc/sysdev/fsl_rmu.c
@@ -104,6 +104,8 @@
 
 #define DOORBELL_MESSAGE_SIZE	0x08
 
+static DEFINE_SPINLOCK(fsl_rio_doorbell_lock);
+
 struct rio_msg_regs {
 	u32 omr;
 	u32 osr;
@@ -626,9 +628,13 @@ err_out:
 int fsl_rio_doorbell_send(struct rio_mport *mport,
 				int index, u16 destid, u16 data)
 {
+	unsigned long flags;
+
 	pr_debug("fsl_doorbell_send: index %d destid %4.4x data %4.4x\n",
 		 index, destid, data);
 
+	spin_lock_irqsave(&fsl_rio_doorbell_lock, flags);
+
 	/* In the serial version silicons, such as MPC8548, MPC8641,
 	 * below operations is must be.
 	 */
@@ -638,6 +644,8 @@ int fsl_rio_doorbell_send(struct rio_mport *mport,
 	out_be32(&dbell->dbell_regs->oddatr, (index << 20) | data);
 	out_be32(&dbell->dbell_regs->odmr, 0x00000001);
 
+	spin_unlock_irqrestore(&fsl_rio_doorbell_lock, flags);
+
 	return 0;
 }
 
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index 2640446f8bc4..db11b06eb38f 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PPC_FSL_SOC_H
 #define __PPC_FSL_SOC_H
 #ifdef __KERNEL__
diff --git a/arch/powerpc/sysdev/ge/ge_pic.h b/arch/powerpc/sysdev/ge/ge_pic.h
index 5bf7e4b81e36..923dedba3c9c 100644
--- a/arch/powerpc/sysdev/ge/ge_pic.h
+++ b/arch/powerpc/sysdev/ge/ge_pic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GEF_PIC_H__
 #define __GEF_PIC_H__
 
diff --git a/arch/powerpc/sysdev/micropatch.c b/arch/powerpc/sysdev/micropatch.c
index 6727dc54d549..33a9042fca80 100644
--- a/arch/powerpc/sysdev/micropatch.c
+++ b/arch/powerpc/sysdev/micropatch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /* Microcode patches for the CPM as supplied by Motorola.
  * This is the one for IIC/SPI.  There is a newer one that
diff --git a/arch/powerpc/sysdev/mpc5xxx_clocks.c b/arch/powerpc/sysdev/mpc5xxx_clocks.c
index 573292663cf2..834a6d7fbd88 100644
--- a/arch/powerpc/sysdev/mpc5xxx_clocks.c
+++ b/arch/powerpc/sysdev/mpc5xxx_clocks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * 	mpc5xxx_get_bus_frequency - Find the bus frequency for a device
  * 	@node:	device node
diff --git a/arch/powerpc/sysdev/mv64x60.h b/arch/powerpc/sysdev/mv64x60.h
index 4f618fa465c0..60cfcb90d1fa 100644
--- a/arch/powerpc/sysdev/mv64x60.h
+++ b/arch/powerpc/sysdev/mv64x60.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MV64X60_H__
 #define __MV64X60_H__
 
diff --git a/arch/powerpc/sysdev/simple_gpio.h b/arch/powerpc/sysdev/simple_gpio.h
index 3a7b0c513c76..f3f3a20d39e2 100644
--- a/arch/powerpc/sysdev/simple_gpio.h
+++ b/arch/powerpc/sysdev/simple_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SYSDEV_SIMPLE_GPIO_H
 #define __SYSDEV_SIMPLE_GPIO_H
 
diff --git a/arch/powerpc/sysdev/xics/Kconfig b/arch/powerpc/sysdev/xics/Kconfig
index 385e7aa9e273..86fee428f5f1 100644
--- a/arch/powerpc/sysdev/xics/Kconfig
+++ b/arch/powerpc/sysdev/xics/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_XICS
        def_bool n
        select PPC_SMP_MUXED_IPI
diff --git a/arch/powerpc/sysdev/xics/Makefile b/arch/powerpc/sysdev/xics/Makefile
index 5d7f5a6564de..5d438d92472b 100644
--- a/arch/powerpc/sysdev/xics/Makefile
+++ b/arch/powerpc/sysdev/xics/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 
 obj-y				+= xics-common.o
diff --git a/arch/powerpc/sysdev/xics/ics-rtas.c b/arch/powerpc/sysdev/xics/ics-rtas.c
index 78ee5c778ef8..42e0c56ff81c 100644
--- a/arch/powerpc/sysdev/xics/ics-rtas.c
+++ b/arch/powerpc/sysdev/xics/ics-rtas.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/irq.h>
diff --git a/arch/powerpc/sysdev/xive/Kconfig b/arch/powerpc/sysdev/xive/Kconfig
index 3e3e25b5e30d..70ee976e1de0 100644
--- a/arch/powerpc/sysdev/xive/Kconfig
+++ b/arch/powerpc/sysdev/xive/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config PPC_XIVE
 	bool
 	default n
diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c
index f387318678b9..a3b8d7d1316e 100644
--- a/arch/powerpc/sysdev/xive/common.c
+++ b/arch/powerpc/sysdev/xive/common.c
@@ -1402,6 +1402,14 @@ void xive_teardown_cpu(void)
 
 	if (xive_ops->teardown_cpu)
 		xive_ops->teardown_cpu(cpu, xc);
+
+#ifdef CONFIG_SMP
+	/* Get rid of IPI */
+	xive_cleanup_cpu_ipi(cpu, xc);
+#endif
+
+	/* Disable and free the queues */
+	xive_cleanup_cpu_queues(cpu, xc);
 }
 
 void xive_kexec_teardown_cpu(int secondary)
diff --git a/arch/powerpc/sysdev/xive/spapr.c b/arch/powerpc/sysdev/xive/spapr.c
index f24a70bc6855..d9c4c9366049 100644
--- a/arch/powerpc/sysdev/xive/spapr.c
+++ b/arch/powerpc/sysdev/xive/spapr.c
@@ -431,7 +431,11 @@ static int xive_spapr_get_ipi(unsigned int cpu, struct xive_cpu *xc)
 
 static void xive_spapr_put_ipi(unsigned int cpu, struct xive_cpu *xc)
 {
+	if (!xc->hw_ipi)
+		return;
+
 	xive_irq_bitmap_free(xc->hw_ipi);
+	xc->hw_ipi = 0;
 }
 #endif /* CONFIG_SMP */
 
diff --git a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
index c658d8cf760b..061f8035bdbe 100755
--- a/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
+++ b/arch/powerpc/tools/gcc-check-mprofile-kernel.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 set -e
 set -o pipefail
diff --git a/arch/powerpc/xmon/Makefile b/arch/powerpc/xmon/Makefile
index 1dd88315cff4..1bc3abb237cd 100644
--- a/arch/powerpc/xmon/Makefile
+++ b/arch/powerpc/xmon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for xmon
 
 subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
diff --git a/arch/powerpc/xmon/nonstdio.h b/arch/powerpc/xmon/nonstdio.h
index f8653365667e..2202ec61972c 100644
--- a/arch/powerpc/xmon/nonstdio.h
+++ b/arch/powerpc/xmon/nonstdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define EOF	(-1)
 
 #define printf	xmon_printf
diff --git a/arch/powerpc/xmon/spr_access.S b/arch/powerpc/xmon/spr_access.S
index 7d8b0e8ed6d9..4099cbcddaaa 100644
--- a/arch/powerpc/xmon/spr_access.S
+++ b/arch/powerpc/xmon/spr_access.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/ppc_asm.h>
 
 /* unsigned long xmon_mfspr(sprn, default_value) */
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 48af970320cb..863a62a6de3c 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MMU
 	def_bool y
 
@@ -67,6 +68,7 @@ config S390
 	select ARCH_BINFMT_ELF_STATE
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
 	select ARCH_HAS_ELF_RANDOMIZE
+	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE if (MEMORY_ISOLATION && COMPACTION) || CMA
 	select ARCH_HAS_KCOV
@@ -142,7 +144,6 @@ config S390
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS
 	select HAVE_EFFICIENT_UNALIGNED_ACCESS
-	select HAVE_EXIT_THREAD
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
@@ -537,6 +538,22 @@ config ARCH_RANDOM
 
 	  If unsure, say Y.
 
+config ALTERNATIVES
+	def_bool y
+	prompt "Patch optimized instructions for running CPU type"
+	help
+	  When enabled the kernel code is compiled with additional
+	  alternative instructions blocks optimized for newer CPU types.
+	  These alternative instructions blocks are patched at kernel boot
+	  time when running CPU supports them. This mechanism is used to
+	  optimize some critical code paths (i.e. spinlocks) for newer CPUs
+	  even if kernel is build to support older machine generations.
+
+	  This mechanism could be disabled by appending "noaltinstr"
+	  option to the kernel command line.
+
+	  If unsure, say Y.
+
 endmenu
 
 menu "Memory setup"
@@ -808,18 +825,6 @@ config PFAULT
 	  Everybody who wants to run Linux under VM != VM4.2 should select
 	  this option.
 
-config SHARED_KERNEL
-	bool "VM shared kernel support"
-	depends on !JUMP_LABEL
-	help
-	  Select this option, if you want to share the text segment of the
-	  Linux kernel between different VM guests. This reduces memory
-	  usage with lots of guests but greatly increases kernel size.
-	  Also if a kernel was IPL'ed from a shared segment the kexec system
-	  call will not work.
-	  You should only select this option if you know what you are
-	  doing and want to exploit this feature.
-
 config CMM
 	def_tristate n
 	prompt "Cooperative memory management"
@@ -929,17 +934,4 @@ config S390_GUEST
 	  Select this option if you want to run the kernel as a guest under
 	  the KVM hypervisor.
 
-config S390_GUEST_OLD_TRANSPORT
-	def_bool y
-	prompt "Guest support for old s390 virtio transport (DEPRECATED)"
-	depends on S390_GUEST
-	help
-	  Enable this option to add support for the old s390-virtio
-	  transport (i.e. virtio devices NOT based on virtio-ccw). This
-	  type of virtio devices is only available on the experimental
-	  kuli userspace or with old (< 2.6) qemu. If you are running
-	  with a modern version of qemu (which supports virtio-ccw since
-	  1.4 and uses it by default since version 2.4), you probably won't
-	  need this.
-
 endmenu
diff --git a/arch/s390/Kconfig.debug b/arch/s390/Kconfig.debug
index ba5f878a295c..2cfdfbf8d320 100644
--- a/arch/s390/Kconfig.debug
+++ b/arch/s390/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index dac821cfcd43..6b3f41985f28 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -21,7 +21,7 @@ KBUILD_CFLAGS	+= -m64
 KBUILD_AFLAGS	+= -m64
 UTS_MACHINE	:= s390x
 STACK_SIZE	:= 16384
-CHECKFLAGS	+= -D__s390__ -D__s390x__
+CHECKFLAGS	+= -D__s390__ -D__s390x__ -mbig-endian
 
 export LD_BFD
 
@@ -133,6 +133,7 @@ archclean:
 
 archprepare:
 	$(Q)$(MAKE) $(build)=$(tools) include/generated/facilities.h
+	$(Q)$(MAKE) $(build)=$(tools) include/generated/dis.h
 
 # Don't use tabs in echo arguments
 define archhelp
diff --git a/arch/s390/appldata/appldata.h b/arch/s390/appldata/appldata.h
index 4a67f2b5f6aa..10346d2f3d4f 100644
--- a/arch/s390/appldata/appldata.h
+++ b/arch/s390/appldata/appldata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions and interface for Linux - z/VM Monitor Stream.
  *
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 9a42ecec5647..da9dad35c28e 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux s390-specific parts of the memory manager.
 #
diff --git a/arch/s390/boot/compressed/Makefile b/arch/s390/boot/compressed/Makefile
index f7e4c834ea24..29e3dc99b916 100644
--- a/arch/s390/boot/compressed/Makefile
+++ b/arch/s390/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/s390/boot/compressed/Makefile
 #
@@ -11,7 +12,7 @@ targets += vmlinux.bin.xz vmlinux.bin.lzma vmlinux.bin.lzo vmlinux.bin.lz4
 targets += misc.o piggy.o sizes.h head.o
 
 KBUILD_CFLAGS := -m64 -D__KERNEL__ -O2
-KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
+KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY
 KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -msoft-float
 KBUILD_CFLAGS += $(call cc-option,-mpacked-stack)
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
diff --git a/arch/s390/boot/compressed/head.S b/arch/s390/boot/compressed/head.S
index 11f6254c561e..231d1491d431 100644
--- a/arch/s390/boot/compressed/head.S
+++ b/arch/s390/boot/compressed/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Startup glue code to uncompress the kernel
  *
diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c
index 33ca29333e18..cecf38b9ec82 100644
--- a/arch/s390/boot/compressed/misc.c
+++ b/arch/s390/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Definitions and wrapper functions for kernel decompressor
  *
@@ -169,9 +170,7 @@ unsigned long decompress_kernel(void)
 	free_mem_ptr = (unsigned long) &_end;
 	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
 
-	puts("Uncompressing Linux... ");
 	__decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error);
-	puts("Ok, booting the kernel.\n");
 	return (unsigned long) output;
 }
 
diff --git a/arch/s390/boot/compressed/vmlinux.lds.S b/arch/s390/boot/compressed/vmlinux.lds.S
index 747735f83426..88e46d4a7784 100644
--- a/arch/s390/boot/compressed/vmlinux.lds.S
+++ b/arch/s390/boot/compressed/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 
 OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
index 282072206df7..84eccc88c065 100644
--- a/arch/s390/configs/default_defconfig
+++ b/arch/s390/configs/default_defconfig
@@ -69,7 +69,6 @@ CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
-CONFIG_CMA=y
 CONFIG_CMA_DEBUG=y
 CONFIG_CMA_DEBUGFS=y
 CONFIG_MEM_SOFT_DIRTY=y
@@ -379,7 +378,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_DRBD=m
 CONFIG_BLK_DEV_NBD=m
-CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
 CONFIG_BLK_DEV_RAM_DAX=y
@@ -416,7 +414,6 @@ CONFIG_SCSI_OSD_ULD=m
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=y
 CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
 CONFIG_MD_MULTIPATH=m
 CONFIG_MD_FAULTY=m
 CONFIG_BLK_DEV_DM=m
@@ -483,6 +480,8 @@ CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
 CONFIG_MLX4_INFINIBAND=m
 CONFIG_MLX5_INFINIBAND=m
+CONFIG_VFIO=m
+CONFIG_VFIO_PCI=m
 CONFIG_VIRTIO_BALLOON=m
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
@@ -599,7 +598,6 @@ CONFIG_DETECT_HUNG_TASK=y
 CONFIG_WQ_WATCHDOG=y
 CONFIG_PANIC_ON_OOPS=y
 CONFIG_DEBUG_TIMEKEEPING=y
-CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
 CONFIG_PROVE_LOCKING=y
 CONFIG_LOCK_STAT=y
@@ -629,10 +627,8 @@ CONFIG_SCHED_TRACER=y
 CONFIG_FTRACE_SYSCALLS=y
 CONFIG_STACK_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENTS=y
 CONFIG_FUNCTION_PROFILER=y
 CONFIG_HIST_TRIGGERS=y
-CONFIG_TRACE_ENUM_MAP_FILE=y
 CONFIG_LKDTM=m
 CONFIG_TEST_LIST_SORT=y
 CONFIG_TEST_SORT=y
@@ -649,6 +645,7 @@ CONFIG_ENCRYPTED_KEYS=m
 CONFIG_SECURITY=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_HARDENED_USERCOPY=y
+CONFIG_FORTIFY_SOURCE=y
 CONFIG_SECURITY_SELINUX=y
 CONFIG_SECURITY_SELINUX_BOOTPARAM=y
 CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
@@ -705,12 +702,12 @@ CONFIG_CRYPTO_USER_API_RNG=m
 CONFIG_CRYPTO_USER_API_AEAD=m
 CONFIG_ZCRYPT=m
 CONFIG_PKEY=m
+CONFIG_CRYPTO_PAES_S390=m
 CONFIG_CRYPTO_SHA1_S390=m
 CONFIG_CRYPTO_SHA256_S390=m
 CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_DES_S390=m
 CONFIG_CRYPTO_AES_S390=m
-CONFIG_CRYPTO_PAES_S390=m
 CONFIG_CRYPTO_GHASH_S390=m
 CONFIG_CRYPTO_CRC32_S390=y
 CONFIG_ASYMMETRIC_KEY_TYPE=y
diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig
index 3c6b78189fbc..f7202358e6d7 100644
--- a/arch/s390/configs/gcov_defconfig
+++ b/arch/s390/configs/gcov_defconfig
@@ -70,7 +70,6 @@ CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
-CONFIG_CMA=y
 CONFIG_MEM_SOFT_DIRTY=y
 CONFIG_ZSWAP=y
 CONFIG_ZBUD=m
@@ -376,7 +375,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_DRBD=m
 CONFIG_BLK_DEV_NBD=m
-CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
 CONFIG_BLK_DEV_RAM_DAX=y
@@ -412,7 +410,6 @@ CONFIG_SCSI_OSD_ULD=m
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=y
 CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
 CONFIG_MD_MULTIPATH=m
 CONFIG_MD_FAULTY=m
 CONFIG_BLK_DEV_DM=m
@@ -479,6 +476,8 @@ CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
 CONFIG_MLX4_INFINIBAND=m
 CONFIG_MLX5_INFINIBAND=m
+CONFIG_VFIO=m
+CONFIG_VFIO_PCI=m
 CONFIG_VIRTIO_BALLOON=m
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
@@ -575,10 +574,8 @@ CONFIG_SCHED_TRACER=y
 CONFIG_FTRACE_SYSCALLS=y
 CONFIG_STACK_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENTS=y
 CONFIG_FUNCTION_PROFILER=y
 CONFIG_HIST_TRIGGERS=y
-CONFIG_TRACE_ENUM_MAP_FILE=y
 CONFIG_LKDTM=m
 CONFIG_PERCPU_TEST=m
 CONFIG_ATOMIC64_SELFTEST=y
@@ -650,12 +647,12 @@ CONFIG_CRYPTO_USER_API_RNG=m
 CONFIG_CRYPTO_USER_API_AEAD=m
 CONFIG_ZCRYPT=m
 CONFIG_PKEY=m
+CONFIG_CRYPTO_PAES_S390=m
 CONFIG_CRYPTO_SHA1_S390=m
 CONFIG_CRYPTO_SHA256_S390=m
 CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_DES_S390=m
 CONFIG_CRYPTO_AES_S390=m
-CONFIG_CRYPTO_PAES_S390=m
 CONFIG_CRYPTO_GHASH_S390=m
 CONFIG_CRYPTO_CRC32_S390=y
 CONFIG_CRC7=m
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
index 653d72bcc007..03100fe74ea8 100644
--- a/arch/s390/configs/performance_defconfig
+++ b/arch/s390/configs/performance_defconfig
@@ -68,7 +68,6 @@ CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
-CONFIG_CMA=y
 CONFIG_MEM_SOFT_DIRTY=y
 CONFIG_ZSWAP=y
 CONFIG_ZBUD=m
@@ -374,7 +373,6 @@ CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_BLK_DEV_DRBD=m
 CONFIG_BLK_DEV_NBD=m
-CONFIG_BLK_DEV_OSD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=32768
 CONFIG_BLK_DEV_RAM_DAX=y
@@ -410,7 +408,6 @@ CONFIG_SCSI_OSD_ULD=m
 CONFIG_MD=y
 CONFIG_BLK_DEV_MD=y
 CONFIG_MD_LINEAR=m
-CONFIG_MD_RAID0=m
 CONFIG_MD_MULTIPATH=m
 CONFIG_MD_FAULTY=m
 CONFIG_BLK_DEV_DM=m
@@ -477,6 +474,8 @@ CONFIG_INFINIBAND=m
 CONFIG_INFINIBAND_USER_ACCESS=m
 CONFIG_MLX4_INFINIBAND=m
 CONFIG_MLX5_INFINIBAND=m
+CONFIG_VFIO=m
+CONFIG_VFIO_PCI=m
 CONFIG_VIRTIO_BALLOON=m
 CONFIG_EXT4_FS=y
 CONFIG_EXT4_FS_POSIX_ACL=y
@@ -573,10 +572,8 @@ CONFIG_SCHED_TRACER=y
 CONFIG_FTRACE_SYSCALLS=y
 CONFIG_STACK_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_UPROBE_EVENTS=y
 CONFIG_FUNCTION_PROFILER=y
 CONFIG_HIST_TRIGGERS=y
-CONFIG_TRACE_ENUM_MAP_FILE=y
 CONFIG_LKDTM=m
 CONFIG_PERCPU_TEST=m
 CONFIG_ATOMIC64_SELFTEST=y
@@ -648,12 +645,12 @@ CONFIG_CRYPTO_USER_API_RNG=m
 CONFIG_CRYPTO_USER_API_AEAD=m
 CONFIG_ZCRYPT=m
 CONFIG_PKEY=m
+CONFIG_CRYPTO_PAES_S390=m
 CONFIG_CRYPTO_SHA1_S390=m
 CONFIG_CRYPTO_SHA256_S390=m
 CONFIG_CRYPTO_SHA512_S390=m
 CONFIG_CRYPTO_DES_S390=m
 CONFIG_CRYPTO_AES_S390=m
-CONFIG_CRYPTO_PAES_S390=m
 CONFIG_CRYPTO_GHASH_S390=m
 CONFIG_CRYPTO_CRC32_S390=y
 CONFIG_CRC7=m
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
index afa46a7406ea..04e042edbab7 100644
--- a/arch/s390/configs/zfcpdump_defconfig
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -27,6 +27,7 @@ CONFIG_NET=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 # CONFIG_FIRMWARE_IN_KERNEL is not set
+CONFIG_BLK_DEV_RAM=y
 # CONFIG_BLK_DEV_XPRAM is not set
 # CONFIG_DCSSBLK is not set
 # CONFIG_DASD is not set
@@ -59,6 +60,7 @@ CONFIG_CONFIGFS_FS=y
 # CONFIG_NETWORK_FILESYSTEMS is not set
 CONFIG_PRINTK_TIME=y
 CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_PANIC_ON_OOPS=y
 # CONFIG_SCHED_DEBUG is not set
diff --git a/arch/s390/crypto/Makefile b/arch/s390/crypto/Makefile
index ad4bd777768d..a51010ea62fa 100644
--- a/arch/s390/crypto/Makefile
+++ b/arch/s390/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Cryptographic API
 #
diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 591cbdf615af..b48e20dd94e9 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -4,9 +4,11 @@
  * s390 implementation of the AES Cipher Algorithm.
  *
  * s390 Version:
- *   Copyright IBM Corp. 2005, 2007
+ *   Copyright IBM Corp. 2005, 2017
  *   Author(s): Jan Glauber (jang@de.ibm.com)
  *		Sebastian Siewior (sebastian@breakpoint.cc> SW-Fallback
+ *		Patrick Steuer <patrick.steuer@de.ibm.com>
+ *		Harald Freudenberger <freude@de.ibm.com>
  *
  * Derived from "crypto/aes_generic.c"
  *
@@ -22,20 +24,25 @@
 
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
+#include <crypto/ghash.h>
+#include <crypto/internal/aead.h>
 #include <crypto/internal/skcipher.h>
+#include <crypto/scatterwalk.h>
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/cpufeature.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
 #include <linux/fips.h>
+#include <linux/string.h>
 #include <crypto/xts.h>
 #include <asm/cpacf.h>
 
 static u8 *ctrblk;
 static DEFINE_SPINLOCK(ctrblk_lock);
 
-static cpacf_mask_t km_functions, kmc_functions, kmctr_functions;
+static cpacf_mask_t km_functions, kmc_functions, kmctr_functions,
+		    kma_functions;
 
 struct s390_aes_ctx {
 	u8 key[AES_MAX_KEY_SIZE];
@@ -55,6 +62,17 @@ struct s390_xts_ctx {
 	struct crypto_skcipher *fallback;
 };
 
+struct gcm_sg_walk {
+	struct scatter_walk walk;
+	unsigned int walk_bytes;
+	u8 *walk_ptr;
+	unsigned int walk_bytes_remain;
+	u8 buf[AES_BLOCK_SIZE];
+	unsigned int buf_bytes;
+	u8 *ptr;
+	unsigned int nbytes;
+};
+
 static int setkey_fallback_cip(struct crypto_tfm *tfm, const u8 *in_key,
 		unsigned int key_len)
 {
@@ -771,6 +789,267 @@ static struct crypto_alg ctr_aes_alg = {
 	}
 };
 
+static int gcm_aes_setkey(struct crypto_aead *tfm, const u8 *key,
+			  unsigned int keylen)
+{
+	struct s390_aes_ctx *ctx = crypto_aead_ctx(tfm);
+
+	switch (keylen) {
+	case AES_KEYSIZE_128:
+		ctx->fc = CPACF_KMA_GCM_AES_128;
+		break;
+	case AES_KEYSIZE_192:
+		ctx->fc = CPACF_KMA_GCM_AES_192;
+		break;
+	case AES_KEYSIZE_256:
+		ctx->fc = CPACF_KMA_GCM_AES_256;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	memcpy(ctx->key, key, keylen);
+	ctx->key_len = keylen;
+	return 0;
+}
+
+static int gcm_aes_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
+{
+	switch (authsize) {
+	case 4:
+	case 8:
+	case 12:
+	case 13:
+	case 14:
+	case 15:
+	case 16:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void gcm_sg_walk_start(struct gcm_sg_walk *gw, struct scatterlist *sg,
+			      unsigned int len)
+{
+	memset(gw, 0, sizeof(*gw));
+	gw->walk_bytes_remain = len;
+	scatterwalk_start(&gw->walk, sg);
+}
+
+static int gcm_sg_walk_go(struct gcm_sg_walk *gw, unsigned int minbytesneeded)
+{
+	int n;
+
+	/* minbytesneeded <= AES_BLOCK_SIZE */
+	if (gw->buf_bytes && gw->buf_bytes >= minbytesneeded) {
+		gw->ptr = gw->buf;
+		gw->nbytes = gw->buf_bytes;
+		goto out;
+	}
+
+	if (gw->walk_bytes_remain == 0) {
+		gw->ptr = NULL;
+		gw->nbytes = 0;
+		goto out;
+	}
+
+	gw->walk_bytes = scatterwalk_clamp(&gw->walk, gw->walk_bytes_remain);
+	if (!gw->walk_bytes) {
+		scatterwalk_start(&gw->walk, sg_next(gw->walk.sg));
+		gw->walk_bytes = scatterwalk_clamp(&gw->walk,
+						   gw->walk_bytes_remain);
+	}
+	gw->walk_ptr = scatterwalk_map(&gw->walk);
+
+	if (!gw->buf_bytes && gw->walk_bytes >= minbytesneeded) {
+		gw->ptr = gw->walk_ptr;
+		gw->nbytes = gw->walk_bytes;
+		goto out;
+	}
+
+	while (1) {
+		n = min(gw->walk_bytes, AES_BLOCK_SIZE - gw->buf_bytes);
+		memcpy(gw->buf + gw->buf_bytes, gw->walk_ptr, n);
+		gw->buf_bytes += n;
+		gw->walk_bytes_remain -= n;
+		scatterwalk_unmap(&gw->walk);
+		scatterwalk_advance(&gw->walk, n);
+		scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
+
+		if (gw->buf_bytes >= minbytesneeded) {
+			gw->ptr = gw->buf;
+			gw->nbytes = gw->buf_bytes;
+			goto out;
+		}
+
+		gw->walk_bytes = scatterwalk_clamp(&gw->walk,
+						   gw->walk_bytes_remain);
+		if (!gw->walk_bytes) {
+			scatterwalk_start(&gw->walk, sg_next(gw->walk.sg));
+			gw->walk_bytes = scatterwalk_clamp(&gw->walk,
+							gw->walk_bytes_remain);
+		}
+		gw->walk_ptr = scatterwalk_map(&gw->walk);
+	}
+
+out:
+	return gw->nbytes;
+}
+
+static void gcm_sg_walk_done(struct gcm_sg_walk *gw, unsigned int bytesdone)
+{
+	int n;
+
+	if (gw->ptr == NULL)
+		return;
+
+	if (gw->ptr == gw->buf) {
+		n = gw->buf_bytes - bytesdone;
+		if (n > 0) {
+			memmove(gw->buf, gw->buf + bytesdone, n);
+			gw->buf_bytes -= n;
+		} else
+			gw->buf_bytes = 0;
+	} else {
+		gw->walk_bytes_remain -= bytesdone;
+		scatterwalk_unmap(&gw->walk);
+		scatterwalk_advance(&gw->walk, bytesdone);
+		scatterwalk_done(&gw->walk, 0, gw->walk_bytes_remain);
+	}
+}
+
+static int gcm_aes_crypt(struct aead_request *req, unsigned int flags)
+{
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct s390_aes_ctx *ctx = crypto_aead_ctx(tfm);
+	unsigned int ivsize = crypto_aead_ivsize(tfm);
+	unsigned int taglen = crypto_aead_authsize(tfm);
+	unsigned int aadlen = req->assoclen;
+	unsigned int pclen = req->cryptlen;
+	int ret = 0;
+
+	unsigned int len, in_bytes, out_bytes,
+		     min_bytes, bytes, aad_bytes, pc_bytes;
+	struct gcm_sg_walk gw_in, gw_out;
+	u8 tag[GHASH_DIGEST_SIZE];
+
+	struct {
+		u32 _[3];		/* reserved */
+		u32 cv;			/* Counter Value */
+		u8 t[GHASH_DIGEST_SIZE];/* Tag */
+		u8 h[AES_BLOCK_SIZE];	/* Hash-subkey */
+		u64 taadl;		/* Total AAD Length */
+		u64 tpcl;		/* Total Plain-/Cipher-text Length */
+		u8 j0[GHASH_BLOCK_SIZE];/* initial counter value */
+		u8 k[AES_MAX_KEY_SIZE];	/* Key */
+	} param;
+
+	/*
+	 * encrypt
+	 *   req->src: aad||plaintext
+	 *   req->dst: aad||ciphertext||tag
+	 * decrypt
+	 *   req->src: aad||ciphertext||tag
+	 *   req->dst: aad||plaintext, return 0 or -EBADMSG
+	 * aad, plaintext and ciphertext may be empty.
+	 */
+	if (flags & CPACF_DECRYPT)
+		pclen -= taglen;
+	len = aadlen + pclen;
+
+	memset(&param, 0, sizeof(param));
+	param.cv = 1;
+	param.taadl = aadlen * 8;
+	param.tpcl = pclen * 8;
+	memcpy(param.j0, req->iv, ivsize);
+	*(u32 *)(param.j0 + ivsize) = 1;
+	memcpy(param.k, ctx->key, ctx->key_len);
+
+	gcm_sg_walk_start(&gw_in, req->src, len);
+	gcm_sg_walk_start(&gw_out, req->dst, len);
+
+	do {
+		min_bytes = min_t(unsigned int,
+				  aadlen > 0 ? aadlen : pclen, AES_BLOCK_SIZE);
+		in_bytes = gcm_sg_walk_go(&gw_in, min_bytes);
+		out_bytes = gcm_sg_walk_go(&gw_out, min_bytes);
+		bytes = min(in_bytes, out_bytes);
+
+		if (aadlen + pclen <= bytes) {
+			aad_bytes = aadlen;
+			pc_bytes = pclen;
+			flags |= CPACF_KMA_LAAD | CPACF_KMA_LPC;
+		} else {
+			if (aadlen <= bytes) {
+				aad_bytes = aadlen;
+				pc_bytes = (bytes - aadlen) &
+					   ~(AES_BLOCK_SIZE - 1);
+				flags |= CPACF_KMA_LAAD;
+			} else {
+				aad_bytes = bytes & ~(AES_BLOCK_SIZE - 1);
+				pc_bytes = 0;
+			}
+		}
+
+		if (aad_bytes > 0)
+			memcpy(gw_out.ptr, gw_in.ptr, aad_bytes);
+
+		cpacf_kma(ctx->fc | flags, &param,
+			  gw_out.ptr + aad_bytes,
+			  gw_in.ptr + aad_bytes, pc_bytes,
+			  gw_in.ptr, aad_bytes);
+
+		gcm_sg_walk_done(&gw_in, aad_bytes + pc_bytes);
+		gcm_sg_walk_done(&gw_out, aad_bytes + pc_bytes);
+		aadlen -= aad_bytes;
+		pclen -= pc_bytes;
+	} while (aadlen + pclen > 0);
+
+	if (flags & CPACF_DECRYPT) {
+		scatterwalk_map_and_copy(tag, req->src, len, taglen, 0);
+		if (crypto_memneq(tag, param.t, taglen))
+			ret = -EBADMSG;
+	} else
+		scatterwalk_map_and_copy(param.t, req->dst, len, taglen, 1);
+
+	memzero_explicit(&param, sizeof(param));
+	return ret;
+}
+
+static int gcm_aes_encrypt(struct aead_request *req)
+{
+	return gcm_aes_crypt(req, CPACF_ENCRYPT);
+}
+
+static int gcm_aes_decrypt(struct aead_request *req)
+{
+	return gcm_aes_crypt(req, CPACF_DECRYPT);
+}
+
+static struct aead_alg gcm_aes_aead = {
+	.setkey			= gcm_aes_setkey,
+	.setauthsize		= gcm_aes_setauthsize,
+	.encrypt		= gcm_aes_encrypt,
+	.decrypt		= gcm_aes_decrypt,
+
+	.ivsize			= GHASH_BLOCK_SIZE - sizeof(u32),
+	.maxauthsize		= GHASH_DIGEST_SIZE,
+	.chunksize		= AES_BLOCK_SIZE,
+
+	.base			= {
+		.cra_flags		= CRYPTO_ALG_TYPE_AEAD,
+		.cra_blocksize		= 1,
+		.cra_ctxsize		= sizeof(struct s390_aes_ctx),
+		.cra_priority		= 900,
+		.cra_name		= "gcm(aes)",
+		.cra_driver_name	= "gcm-aes-s390",
+		.cra_module		= THIS_MODULE,
+	},
+};
+
 static struct crypto_alg *aes_s390_algs_ptr[5];
 static int aes_s390_algs_num;
 
@@ -790,16 +1069,19 @@ static void aes_s390_fini(void)
 		crypto_unregister_alg(aes_s390_algs_ptr[aes_s390_algs_num]);
 	if (ctrblk)
 		free_page((unsigned long) ctrblk);
+
+	crypto_unregister_aead(&gcm_aes_aead);
 }
 
 static int __init aes_s390_init(void)
 {
 	int ret;
 
-	/* Query available functions for KM, KMC and KMCTR */
+	/* Query available functions for KM, KMC, KMCTR and KMA */
 	cpacf_query(CPACF_KM, &km_functions);
 	cpacf_query(CPACF_KMC, &kmc_functions);
 	cpacf_query(CPACF_KMCTR, &kmctr_functions);
+	cpacf_query(CPACF_KMA, &kma_functions);
 
 	if (cpacf_test_func(&km_functions, CPACF_KM_AES_128) ||
 	    cpacf_test_func(&km_functions, CPACF_KM_AES_192) ||
@@ -840,6 +1122,14 @@ static int __init aes_s390_init(void)
 			goto out_err;
 	}
 
+	if (cpacf_test_func(&kma_functions, CPACF_KMA_GCM_AES_128) ||
+	    cpacf_test_func(&kma_functions, CPACF_KMA_GCM_AES_192) ||
+	    cpacf_test_func(&kma_functions, CPACF_KMA_GCM_AES_256)) {
+		ret = crypto_register_aead(&gcm_aes_aead);
+		if (ret)
+			goto out_err;
+	}
+
 	return 0;
 out_err:
 	aes_s390_fini();
diff --git a/arch/s390/crypto/crc32be-vx.S b/arch/s390/crypto/crc32be-vx.S
index 8013989cd2e5..e8077f0971f8 100644
--- a/arch/s390/crypto/crc32be-vx.S
+++ b/arch/s390/crypto/crc32be-vx.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Hardware-accelerated CRC-32 variants for Linux on z Systems
  *
diff --git a/arch/s390/crypto/crc32le-vx.S b/arch/s390/crypto/crc32le-vx.S
index 17f2504c2633..d8c67a58c0c5 100644
--- a/arch/s390/crypto/crc32le-vx.S
+++ b/arch/s390/crypto/crc32le-vx.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Hardware-accelerated CRC-32 variants for Linux on z Systems
  *
diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index 20244a38c886..46a3178d8bc6 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -53,7 +53,6 @@ CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
 CONFIG_CLEANCACHE=y
 CONFIG_FRONTSWAP=y
-CONFIG_CMA=y
 CONFIG_ZSWAP=y
 CONFIG_ZBUD=m
 CONFIG_ZSMALLOC=m
@@ -163,7 +162,6 @@ CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_PAGEALLOC=y
 CONFIG_DETECT_HUNG_TASK=y
 CONFIG_PANIC_ON_OOPS=y
-CONFIG_DEBUG_RT_MUTEXES=y
 CONFIG_PROVE_LOCKING=y
 CONFIG_LOCK_STAT=y
 CONFIG_DEBUG_LOCKDEP=y
@@ -179,7 +177,6 @@ CONFIG_TRACER_SNAPSHOT_PER_CPU_SWAP=y
 CONFIG_STACK_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
 CONFIG_FUNCTION_PROFILER=y
-CONFIG_TRACE_ENUM_MAP_FILE=y
 CONFIG_KPROBES_SANITY_TEST=y
 CONFIG_S390_PTDUMP=y
 CONFIG_CRYPTO_CRYPTD=m
diff --git a/arch/s390/hypfs/hypfs.h b/arch/s390/hypfs/hypfs.h
index eecde500ed49..52348e0a812e 100644
--- a/arch/s390/hypfs/hypfs.h
+++ b/arch/s390/hypfs/hypfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Hypervisor filesystem for Linux on s390.
  *
diff --git a/arch/s390/hypfs/hypfs_dbfs.c b/arch/s390/hypfs/hypfs_dbfs.c
index 752f6df3e697..b9bdf5c1918e 100644
--- a/arch/s390/hypfs/hypfs_dbfs.c
+++ b/arch/s390/hypfs/hypfs_dbfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Hypervisor filesystem for Linux on s390 - debugfs interface
  *
diff --git a/arch/s390/hypfs/hypfs_diag.c b/arch/s390/hypfs/hypfs_diag.c
index 794bebb43d23..be8cc53204b5 100644
--- a/arch/s390/hypfs/hypfs_diag.c
+++ b/arch/s390/hypfs/hypfs_diag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Hypervisor filesystem for Linux on s390. Diag 204 and 224
  *    implementation.
diff --git a/arch/s390/hypfs/hypfs_diag0c.c b/arch/s390/hypfs/hypfs_diag0c.c
index 0f1927cbba31..dce87f1bec94 100644
--- a/arch/s390/hypfs/hypfs_diag0c.c
+++ b/arch/s390/hypfs/hypfs_diag0c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Hypervisor filesystem for Linux on s390
  *
diff --git a/arch/s390/hypfs/hypfs_sprp.c b/arch/s390/hypfs/hypfs_sprp.c
index c9e5c72f78bd..ae0ed8dd5f1b 100644
--- a/arch/s390/hypfs/hypfs_sprp.c
+++ b/arch/s390/hypfs/hypfs_sprp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Hypervisor filesystem for Linux on s390.
  *    Set Partition-Resource Parameter interface.
diff --git a/arch/s390/hypfs/hypfs_vm.c b/arch/s390/hypfs/hypfs_vm.c
index 012919d9833b..c4b7b681e055 100644
--- a/arch/s390/hypfs/hypfs_vm.c
+++ b/arch/s390/hypfs/hypfs_vm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Hypervisor filesystem for Linux on s390. z/VM implementation.
  *
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index 6e2c9f7e47fa..41c211a4d8b1 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -15,6 +15,7 @@ generic-y += local64.h
 generic-y += mcs_spinlock.h
 generic-y += mm-arch-hooks.h
 generic-y += preempt.h
+generic-y += rwsem.h
 generic-y += trace_clock.h
 generic-y += unaligned.h
 generic-y += word-at-a-time.h
diff --git a/arch/s390/include/asm/airq.h b/arch/s390/include/asm/airq.h
index bd93ff6661b8..fcf539efb32f 100644
--- a/arch/s390/include/asm/airq.h
+++ b/arch/s390/include/asm/airq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2002, 2007
  *    Author(s): Ingo Adlung <adlung@de.ibm.com>
diff --git a/arch/s390/include/asm/alternative.h b/arch/s390/include/asm/alternative.h
new file mode 100644
index 000000000000..6c268f6a51d3
--- /dev/null
+++ b/arch/s390/include/asm/alternative.h
@@ -0,0 +1,163 @@
+#ifndef _ASM_S390_ALTERNATIVE_H
+#define _ASM_S390_ALTERNATIVE_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <linux/stringify.h>
+
+struct alt_instr {
+	s32 instr_offset;	/* original instruction */
+	s32 repl_offset;	/* offset to replacement instruction */
+	u16 facility;		/* facility bit set for replacement */
+	u8  instrlen;		/* length of original instruction */
+	u8  replacementlen;	/* length of new instruction */
+} __packed;
+
+#ifdef CONFIG_ALTERNATIVES
+extern void apply_alternative_instructions(void);
+extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
+#else
+static inline void apply_alternative_instructions(void) {};
+static inline void apply_alternatives(struct alt_instr *start,
+				      struct alt_instr *end) {};
+#endif
+/*
+ * |661:       |662:	  |6620      |663:
+ * +-----------+---------------------+
+ * | oldinstr  | oldinstr_padding    |
+ * |	       +----------+----------+
+ * |	       |	  |	     |
+ * |	       | >6 bytes |6/4/2 nops|
+ * |	       |6 bytes jg----------->
+ * +-----------+---------------------+
+ *		 ^^ static padding ^^
+ *
+ * .altinstr_replacement section
+ * +---------------------+-----------+
+ * |6641:			     |6651:
+ * | alternative instr 1	     |
+ * +-----------+---------+- - - - - -+
+ * |6642:		 |6652:      |
+ * | alternative instr 2 | padding
+ * +---------------------+- - - - - -+
+ *			  ^ runtime ^
+ *
+ * .altinstructions section
+ * +---------------------------------+
+ * | alt_instr entries for each      |
+ * | alternative instr		     |
+ * +---------------------------------+
+ */
+
+#define b_altinstr(num)	"664"#num
+#define e_altinstr(num)	"665"#num
+
+#define e_oldinstr_pad_end	"663"
+#define oldinstr_len		"662b-661b"
+#define oldinstr_total_len	e_oldinstr_pad_end"b-661b"
+#define altinstr_len(num)	e_altinstr(num)"b-"b_altinstr(num)"b"
+#define oldinstr_pad_len(num) \
+	"-(((" altinstr_len(num) ")-(" oldinstr_len ")) > 0) * " \
+	"((" altinstr_len(num) ")-(" oldinstr_len "))"
+
+#define INSTR_LEN_SANITY_CHECK(len)					\
+	".if " len " > 254\n"						\
+	"\t.error \"cpu alternatives does not support instructions "	\
+		"blocks > 254 bytes\"\n"				\
+	".endif\n"							\
+	".if (" len ") %% 2\n"						\
+	"\t.error \"cpu alternatives instructions length is odd\"\n"	\
+	".endif\n"
+
+#define OLDINSTR_PADDING(oldinstr, num)					\
+	".if " oldinstr_pad_len(num) " > 6\n"				\
+	"\tjg " e_oldinstr_pad_end "f\n"				\
+	"6620:\n"							\
+	"\t.fill (" oldinstr_pad_len(num) " - (6620b-662b)) / 2, 2, 0x0700\n" \
+	".else\n"							\
+	"\t.fill " oldinstr_pad_len(num) " / 6, 6, 0xc0040000\n"	\
+	"\t.fill " oldinstr_pad_len(num) " %% 6 / 4, 4, 0x47000000\n"	\
+	"\t.fill " oldinstr_pad_len(num) " %% 6 %% 4 / 2, 2, 0x0700\n"	\
+	".endif\n"
+
+#define OLDINSTR(oldinstr, num)						\
+	"661:\n\t" oldinstr "\n662:\n"					\
+	OLDINSTR_PADDING(oldinstr, num)					\
+	e_oldinstr_pad_end ":\n"					\
+	INSTR_LEN_SANITY_CHECK(oldinstr_len)
+
+#define OLDINSTR_2(oldinstr, num1, num2)				\
+	"661:\n\t" oldinstr "\n662:\n"					\
+	".if " altinstr_len(num1) " < " altinstr_len(num2) "\n"		\
+	OLDINSTR_PADDING(oldinstr, num2)				\
+	".else\n"							\
+	OLDINSTR_PADDING(oldinstr, num1)				\
+	".endif\n"							\
+	e_oldinstr_pad_end ":\n"					\
+	INSTR_LEN_SANITY_CHECK(oldinstr_len)
+
+#define ALTINSTR_ENTRY(facility, num)					\
+	"\t.long 661b - .\n"			/* old instruction */	\
+	"\t.long " b_altinstr(num)"b - .\n"	/* alt instruction */	\
+	"\t.word " __stringify(facility) "\n"	/* facility bit    */	\
+	"\t.byte " oldinstr_total_len "\n"	/* source len	   */	\
+	"\t.byte " altinstr_len(num) "\n"	/* alt instruction len */
+
+#define ALTINSTR_REPLACEMENT(altinstr, num)	/* replacement */	\
+	b_altinstr(num)":\n\t" altinstr "\n" e_altinstr(num) ":\n"	\
+	INSTR_LEN_SANITY_CHECK(altinstr_len(num))
+
+#ifdef CONFIG_ALTERNATIVES
+/* alternative assembly primitive: */
+#define ALTERNATIVE(oldinstr, altinstr, facility) \
+	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	ALTINSTR_REPLACEMENT(altinstr, 1)				\
+	".popsection\n"							\
+	OLDINSTR(oldinstr, 1)						\
+	".pushsection .altinstructions,\"a\"\n"				\
+	ALTINSTR_ENTRY(facility, 1)					\
+	".popsection\n"
+
+#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2)\
+	".pushsection .altinstr_replacement, \"ax\"\n"			\
+	ALTINSTR_REPLACEMENT(altinstr1, 1)				\
+	ALTINSTR_REPLACEMENT(altinstr2, 2)				\
+	".popsection\n"							\
+	OLDINSTR_2(oldinstr, 1, 2)					\
+	".pushsection .altinstructions,\"a\"\n"				\
+	ALTINSTR_ENTRY(facility1, 1)					\
+	ALTINSTR_ENTRY(facility2, 2)					\
+	".popsection\n"
+#else
+/* Alternative instructions are disabled, let's put just oldinstr in */
+#define ALTERNATIVE(oldinstr, altinstr, facility) \
+	oldinstr "\n"
+
+#define ALTERNATIVE_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \
+	oldinstr "\n"
+#endif
+
+/*
+ * Alternative instructions for different CPU types or capabilities.
+ *
+ * This allows to use optimized instructions even on generic binary
+ * kernels.
+ *
+ * oldinstr is padded with jump and nops at compile time if altinstr is
+ * longer. altinstr is padded with jump and nops at run-time during patching.
+ *
+ * For non barrier like inlines please define new variants
+ * without volatile and memory clobber.
+ */
+#define alternative(oldinstr, altinstr, facility)			\
+	asm volatile(ALTERNATIVE(oldinstr, altinstr, facility) : : : "memory")
+
+#define alternative_2(oldinstr, altinstr1, facility1, altinstr2, facility2) \
+	asm volatile(ALTERNATIVE_2(oldinstr, altinstr1, facility1,	    \
+				   altinstr2, facility2) ::: "memory")
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_S390_ALTERNATIVE_H */
diff --git a/arch/s390/include/asm/appldata.h b/arch/s390/include/asm/appldata.h
index a6263d4e8e56..4afbb5938726 100644
--- a/arch/s390/include/asm/appldata.h
+++ b/arch/s390/include/asm/appldata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2006
  *
diff --git a/arch/s390/include/asm/archrandom.h b/arch/s390/include/asm/archrandom.h
index 6033901a40b2..09aed1095336 100644
--- a/arch/s390/include/asm/archrandom.h
+++ b/arch/s390/include/asm/archrandom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Kernel interface for the s390 arch_random_* functions
  *
@@ -27,42 +28,42 @@ static void s390_arch_random_generate(u8 *buf, unsigned int nbytes)
 
 static inline bool arch_has_random(void)
 {
-	if (static_branch_likely(&s390_arch_random_available))
-		return true;
 	return false;
 }
 
 static inline bool arch_has_random_seed(void)
 {
-	return arch_has_random();
+	if (static_branch_likely(&s390_arch_random_available))
+		return true;
+	return false;
 }
 
 static inline bool arch_get_random_long(unsigned long *v)
 {
-	if (static_branch_likely(&s390_arch_random_available)) {
-		s390_arch_random_generate((u8 *)v, sizeof(*v));
-		return true;
-	}
 	return false;
 }
 
 static inline bool arch_get_random_int(unsigned int *v)
 {
-	if (static_branch_likely(&s390_arch_random_available)) {
-		s390_arch_random_generate((u8 *)v, sizeof(*v));
-		return true;
-	}
 	return false;
 }
 
 static inline bool arch_get_random_seed_long(unsigned long *v)
 {
-	return arch_get_random_long(v);
+	if (static_branch_likely(&s390_arch_random_available)) {
+		s390_arch_random_generate((u8 *)v, sizeof(*v));
+		return true;
+	}
+	return false;
 }
 
 static inline bool arch_get_random_seed_int(unsigned int *v)
 {
-	return arch_get_random_int(v);
+	if (static_branch_likely(&s390_arch_random_available)) {
+		s390_arch_random_generate((u8 *)v, sizeof(*v));
+		return true;
+	}
+	return false;
 }
 
 #endif /* CONFIG_ARCH_RANDOM */
diff --git a/arch/s390/include/asm/asm-prototypes.h b/arch/s390/include/asm/asm-prototypes.h
index 2c3413b0ca52..c37eb921bfbf 100644
--- a/arch/s390/include/asm/asm-prototypes.h
+++ b/arch/s390/include/asm/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_PROTOTYPES_H
 
 #include <linux/kvm_host.h>
diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index f7f69dfd2db2..4b55532f15c4 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2016
  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
diff --git a/arch/s390/include/asm/atomic_ops.h b/arch/s390/include/asm/atomic_ops.h
index ba6d29412344..d3f09526ee19 100644
--- a/arch/s390/include/asm/atomic_ops.h
+++ b/arch/s390/include/asm/atomic_ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Low level function for atomic operations
  *
@@ -39,19 +40,24 @@ __ATOMIC_OPS(__atomic64_xor, long, "laxg")
 #undef __ATOMIC_OPS
 #undef __ATOMIC_OP
 
-static inline void __atomic_add_const(int val, int *ptr)
-{
-	asm volatile(
-		"	asi	%[ptr],%[val]\n"
-		: [ptr] "+Q" (*ptr) : [val] "i" (val) : "cc");
+#define __ATOMIC_CONST_OP(op_name, op_type, op_string, op_barrier)	\
+static inline void op_name(op_type val, op_type *ptr)			\
+{									\
+	asm volatile(							\
+		op_string "	%[ptr],%[val]\n"			\
+		op_barrier						\
+		: [ptr] "+Q" (*ptr) : [val] "i" (val) : "cc", "memory");\
 }
 
-static inline void __atomic64_add_const(long val, long *ptr)
-{
-	asm volatile(
-		"	agsi	%[ptr],%[val]\n"
-		: [ptr] "+Q" (*ptr) : [val] "i" (val) : "cc");
-}
+#define __ATOMIC_CONST_OPS(op_name, op_type, op_string)			\
+	__ATOMIC_CONST_OP(op_name, op_type, op_string, "\n")		\
+	__ATOMIC_CONST_OP(op_name##_barrier, op_type, op_string, "bcr 14,0\n")
+
+__ATOMIC_CONST_OPS(__atomic_add_const, int, "asi")
+__ATOMIC_CONST_OPS(__atomic64_add_const, long, "agsi")
+
+#undef __ATOMIC_CONST_OPS
+#undef __ATOMIC_CONST_OP
 
 #else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
@@ -107,6 +113,11 @@ __ATOMIC64_OPS(__atomic64_xor, "xgr")
 
 #undef __ATOMIC64_OPS
 
+#define __atomic_add_const(val, ptr)		__atomic_add(val, ptr)
+#define __atomic_add_const_barrier(val, ptr)	__atomic_add(val, ptr)
+#define __atomic64_add_const(val, ptr)		__atomic64_add(val, ptr)
+#define __atomic64_add_const_barrier(val, ptr)	__atomic64_add(val, ptr)
+
 #endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
 static inline int __atomic_cmpxchg(int *ptr, int old, int new)
diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h
index 5c8db3ce61c8..10432607a573 100644
--- a/arch/s390/include/asm/barrier.h
+++ b/arch/s390/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2009
  *
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 99902b7b9f0c..31e400c1a1f3 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 1999,2013
  *
diff --git a/arch/s390/include/asm/bug.h b/arch/s390/include/asm/bug.h
index ce9cc123988b..429f43a8a8e8 100644
--- a/arch/s390/include/asm/bug.h
+++ b/arch/s390/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_BUG_H
 #define _ASM_S390_BUG_H
 
diff --git a/arch/s390/include/asm/cache.h b/arch/s390/include/asm/cache.h
index 05219a5e0b2f..d5e22e837416 100644
--- a/arch/s390/include/asm/cache.h
+++ b/arch/s390/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/ccwdev.h b/arch/s390/include/asm/ccwdev.h
index b80e456d6428..633f8da86137 100644
--- a/arch/s390/include/asm/ccwdev.h
+++ b/arch/s390/include/asm/ccwdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2002, 2009
  *
diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index 057ce0ca6377..99aa817dad32 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_CCWGROUP_H
 #define S390_CCWGROUP_H
 
@@ -41,6 +42,7 @@ struct ccwgroup_device {
  * @thaw: undo work done in @freeze
  * @restore: callback for restoring after hibernation
  * @driver: embedded driver structure
+ * @ccw_driver: supported ccw_driver (optional)
  */
 struct ccwgroup_driver {
 	int (*setup) (struct ccwgroup_device *);
@@ -55,6 +57,7 @@ struct ccwgroup_driver {
 	int (*restore)(struct ccwgroup_device *);
 
 	struct device_driver driver;
+	struct ccw_driver *ccw_driver;
 };
 
 extern int  ccwgroup_driver_register   (struct ccwgroup_driver *cdriver);
diff --git a/arch/s390/include/asm/checksum.h b/arch/s390/include/asm/checksum.h
index 12bf4fef2a68..91e376b0d28c 100644
--- a/arch/s390/include/asm/checksum.h
+++ b/arch/s390/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    S390 fast network checksum routines
  *
diff --git a/arch/s390/include/asm/chpid.h b/arch/s390/include/asm/chpid.h
index 7298eec98541..4773f747915c 100644
--- a/arch/s390/include/asm/chpid.h
+++ b/arch/s390/include/asm/chpid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007, 2012
  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
diff --git a/arch/s390/include/asm/cio.h b/arch/s390/include/asm/cio.h
index 7a38ca85190b..dc84a0171bb3 100644
--- a/arch/s390/include/asm/cio.h
+++ b/arch/s390/include/asm/cio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common interface for I/O on S/390
  */
diff --git a/arch/s390/include/asm/clp.h b/arch/s390/include/asm/clp.h
index 5687d62fb0cb..3925b0f085b7 100644
--- a/arch/s390/include/asm/clp.h
+++ b/arch/s390/include/asm/clp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_CLP_H
 #define _ASM_S390_CLP_H
 
diff --git a/arch/s390/include/asm/cmb.h b/arch/s390/include/asm/cmb.h
index ed2630c23f90..599594c3720f 100644
--- a/arch/s390/include/asm/cmb.h
+++ b/arch/s390/include/asm/cmb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_CMB_H
 #define S390_CMB_H
 
diff --git a/arch/s390/include/asm/cmpxchg.h b/arch/s390/include/asm/cmpxchg.h
index 24ea6948e32b..af99c1f66f12 100644
--- a/arch/s390/include/asm/cmpxchg.h
+++ b/arch/s390/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2011
  *
diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 07a82bc933a7..1b60eb3676d5 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390X_COMPAT_H
 #define _ASM_S390X_COMPAT_H
 /*
diff --git a/arch/s390/include/asm/cpacf.h b/arch/s390/include/asm/cpacf.h
index e06f2556b316..3cc52e37b4b2 100644
--- a/arch/s390/include/asm/cpacf.h
+++ b/arch/s390/include/asm/cpacf.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CP Assist for Cryptographic Functions (CPACF)
  *
- * Copyright IBM Corp. 2003, 2016
+ * Copyright IBM Corp. 2003, 2017
  * Author(s): Thomas Spatzier
  *	      Jan Glauber
  *	      Harald Freudenberger (freude@de.ibm.com)
@@ -133,6 +134,22 @@
 #define CPACF_PRNO_TRNG_Q_R2C_RATIO	0x70
 #define CPACF_PRNO_TRNG			0x72
 
+/*
+ * Function codes for the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
+ * instruction
+ */
+#define CPACF_KMA_QUERY		0x00
+#define CPACF_KMA_GCM_AES_128	0x12
+#define CPACF_KMA_GCM_AES_192	0x13
+#define CPACF_KMA_GCM_AES_256	0x14
+
+/*
+ * Flags for the KMA (CIPHER MESSAGE WITH AUTHENTICATION) instruction
+ */
+#define CPACF_KMA_LPC	0x100	/* Last-Plaintext/Ciphertext */
+#define CPACF_KMA_LAAD	0x200	/* Last-AAD */
+#define CPACF_KMA_HS	0x400	/* Hash-subkey Supplied */
+
 typedef struct { unsigned char bytes[16]; } cpacf_mask_t;
 
 /**
@@ -178,6 +195,8 @@ static inline int __cpacf_check_opcode(unsigned int opcode)
 		return test_facility(77);	/* check for MSA4 */
 	case CPACF_PRNO:
 		return test_facility(57);	/* check for MSA5 */
+	case CPACF_KMA:
+		return test_facility(146);	/* check for MSA8 */
 	default:
 		BUG();
 	}
@@ -469,4 +488,36 @@ static inline void cpacf_pckmo(long func, void *param)
 		: "cc", "memory");
 }
 
+/**
+ * cpacf_kma() - executes the KMA (CIPHER MESSAGE WITH AUTHENTICATION)
+ *		 instruction
+ * @func: the function code passed to KMA; see CPACF_KMA_xxx defines
+ * @param: address of parameter block; see POP for details on each func
+ * @dest: address of destination memory area
+ * @src: address of source memory area
+ * @src_len: length of src operand in bytes
+ * @aad: address of additional authenticated data memory area
+ * @aad_len: length of aad operand in bytes
+ */
+static inline void cpacf_kma(unsigned long func, void *param, u8 *dest,
+			     const u8 *src, unsigned long src_len,
+			     const u8 *aad, unsigned long aad_len)
+{
+	register unsigned long r0 asm("0") = (unsigned long) func;
+	register unsigned long r1 asm("1") = (unsigned long) param;
+	register unsigned long r2 asm("2") = (unsigned long) src;
+	register unsigned long r3 asm("3") = (unsigned long) src_len;
+	register unsigned long r4 asm("4") = (unsigned long) aad;
+	register unsigned long r5 asm("5") = (unsigned long) aad_len;
+	register unsigned long r6 asm("6") = (unsigned long) dest;
+
+	asm volatile(
+		"0:	.insn	rrf,%[opc] << 16,%[dst],%[src],%[aad],0\n"
+		"	brc	1,0b\n"	/* handle partial completion */
+		: [dst] "+a" (r6), [src] "+a" (r2), [slen] "+d" (r3),
+		  [aad] "+a" (r4), [alen] "+d" (r5)
+		: [fc] "d" (r0), [pba] "a" (r1), [opc] "i" (CPACF_KMA)
+		: "cc", "memory");
+}
+
 #endif	/* _ASM_S390_CPACF_H */
diff --git a/arch/s390/include/asm/cpcmd.h b/arch/s390/include/asm/cpcmd.h
index ca2b0624ad46..c3c993abe964 100644
--- a/arch/s390/include/asm/cpcmd.h
+++ b/arch/s390/include/asm/cpcmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/cpu.h b/arch/s390/include/asm/cpu.h
index 91541000378e..62228a884e06 100644
--- a/arch/s390/include/asm/cpu.h
+++ b/arch/s390/include/asm/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2000, 2009
  *    Author(s): Hartmut Penner <hp@de.ibm.com>,
diff --git a/arch/s390/include/asm/cpufeature.h b/arch/s390/include/asm/cpufeature.h
index fa7e69b7c299..1d007c6ede95 100644
--- a/arch/s390/include/asm/cpufeature.h
+++ b/arch/s390/include/asm/cpufeature.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Module interface for CPU features
  *
diff --git a/arch/s390/include/asm/cputime.h b/arch/s390/include/asm/cputime.h
index 9072bf63a846..cb729d111e20 100644
--- a/arch/s390/include/asm/cputime.h
+++ b/arch/s390/include/asm/cputime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2004
  *
diff --git a/arch/s390/include/asm/crw.h b/arch/s390/include/asm/crw.h
index bcb9cd2a730a..c6ebfd31f1db 100644
--- a/arch/s390/include/asm/crw.h
+++ b/arch/s390/include/asm/crw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Data definitions for channel report processing
  *    Copyright IBM Corp. 2000, 2009
diff --git a/arch/s390/include/asm/css_chars.h b/arch/s390/include/asm/css_chars.h
index 09d1dd46bd57..a478eb61aaf7 100644
--- a/arch/s390/include/asm/css_chars.h
+++ b/arch/s390/include/asm/css_chars.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CSS_CHARS_H
 #define _ASM_CSS_CHARS_H
 
diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index e508dff92535..99c93d0346f9 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2009
  *
@@ -7,6 +8,18 @@
 #ifndef __ASM_CTL_REG_H
 #define __ASM_CTL_REG_H
 
+#include <linux/const.h>
+
+#define CR2_GUARDED_STORAGE		_BITUL(63 - 59)
+
+#define CR14_CHANNEL_REPORT_SUBMASK	_BITUL(63 - 35)
+#define CR14_RECOVERY_SUBMASK		_BITUL(63 - 36)
+#define CR14_DEGRADATION_SUBMASK	_BITUL(63 - 37)
+#define CR14_EXTERNAL_DAMAGE_SUBMASK	_BITUL(63 - 38)
+#define CR14_WARNING_SUBMASK		_BITUL(63 - 39)
+
+#ifndef __ASSEMBLY__
+
 #include <linux/bug.h>
 
 #define __ctl_load(array, low, high) do {				\
@@ -54,7 +67,11 @@ void smp_ctl_clear_bit(int cr, int bit);
 union ctlreg0 {
 	unsigned long val;
 	struct {
-		unsigned long	   : 32;
+		unsigned long	   : 8;
+		unsigned long tcx  : 1;	/* Transactional-Execution control */
+		unsigned long pifo : 1;	/* Transactional-Execution Program-
+					   Interruption-Filtering Override */
+		unsigned long	   : 22;
 		unsigned long	   : 3;
 		unsigned long lap  : 1; /* Low-address-protection control */
 		unsigned long	   : 4;
@@ -70,6 +87,19 @@ union ctlreg0 {
 	};
 };
 
+union ctlreg2 {
+	unsigned long val;
+	struct {
+		unsigned long	    : 33;
+		unsigned long ducto : 25;
+		unsigned long	    : 1;
+		unsigned long gse   : 1;
+		unsigned long	    : 1;
+		unsigned long tds   : 1;
+		unsigned long tdc   : 2;
+	};
+};
+
 #ifdef CONFIG_SMP
 # define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
 # define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
@@ -78,4 +108,5 @@ union ctlreg0 {
 # define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
 #endif
 
+#endif /* __ASSEMBLY__ */
 #endif /* __ASM_CTL_REG_H */
diff --git a/arch/s390/include/asm/current.h b/arch/s390/include/asm/current.h
index b80941f30df5..68f84315277c 100644
--- a/arch/s390/include/asm/current.h
+++ b/arch/s390/include/asm/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index df7b54ea956d..c305d39f5016 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   S/390 debug facility
  *
@@ -13,71 +14,71 @@
 #include <linux/refcount.h>
 #include <uapi/asm/debug.h>
 
-#define DEBUG_MAX_LEVEL            6  /* debug levels range from 0 to 6 */
-#define DEBUG_OFF_LEVEL            -1 /* level where debug is switched off */
-#define DEBUG_FLUSH_ALL            -1 /* parameter to flush all areas */
-#define DEBUG_MAX_VIEWS            10 /* max number of views in proc fs */
-#define DEBUG_MAX_NAME_LEN         64 /* max length for a debugfs file name */
-#define DEBUG_DEFAULT_LEVEL        3  /* initial debug level */
+#define DEBUG_MAX_LEVEL		   6  /* debug levels range from 0 to 6 */
+#define DEBUG_OFF_LEVEL		   -1 /* level where debug is switched off */
+#define DEBUG_FLUSH_ALL		   -1 /* parameter to flush all areas */
+#define DEBUG_MAX_VIEWS		   10 /* max number of views in proc fs */
+#define DEBUG_MAX_NAME_LEN	   64 /* max length for a debugfs file name */
+#define DEBUG_DEFAULT_LEVEL	   3  /* initial debug level */
 
 #define DEBUG_DIR_ROOT "s390dbf" /* name of debug root directory in proc fs */
 
-#define DEBUG_DATA(entry) (char*)(entry + 1) /* data is stored behind */
-                                             /* the entry information */
+#define DEBUG_DATA(entry) (char *)(entry + 1) /* data is stored behind */
+					      /* the entry information */
 
 typedef struct __debug_entry debug_entry_t;
 
 struct debug_view;
 
-typedef struct debug_info {	
-	struct debug_info* next;
-	struct debug_info* prev;
+typedef struct debug_info {
+	struct debug_info *next;
+	struct debug_info *prev;
 	refcount_t ref_count;
-	spinlock_t lock;			
+	spinlock_t lock;
 	int level;
 	int nr_areas;
 	int pages_per_area;
 	int buf_size;
-	int entry_size;	
-	debug_entry_t*** areas;
+	int entry_size;
+	debug_entry_t ***areas;
 	int active_area;
 	int *active_pages;
 	int *active_entries;
-	struct dentry* debugfs_root_entry;
-	struct dentry* debugfs_entries[DEBUG_MAX_VIEWS];
-	struct debug_view* views[DEBUG_MAX_VIEWS];	
+	struct dentry *debugfs_root_entry;
+	struct dentry *debugfs_entries[DEBUG_MAX_VIEWS];
+	struct debug_view *views[DEBUG_MAX_VIEWS];
 	char name[DEBUG_MAX_NAME_LEN];
 	umode_t mode;
 } debug_info_t;
 
-typedef int (debug_header_proc_t) (debug_info_t* id,
-				   struct debug_view* view,
+typedef int (debug_header_proc_t) (debug_info_t *id,
+				   struct debug_view *view,
 				   int area,
-				   debug_entry_t* entry,
-				   char* out_buf);
-
-typedef int (debug_format_proc_t) (debug_info_t* id,
-				   struct debug_view* view, char* out_buf,
-				   const char* in_buf);
-typedef int (debug_prolog_proc_t) (debug_info_t* id,
-				   struct debug_view* view,
-				   char* out_buf);
-typedef int (debug_input_proc_t) (debug_info_t* id,
-				  struct debug_view* view,
-				  struct file* file,
+				   debug_entry_t *entry,
+				   char *out_buf);
+
+typedef int (debug_format_proc_t) (debug_info_t *id,
+				   struct debug_view *view, char *out_buf,
+				   const char *in_buf);
+typedef int (debug_prolog_proc_t) (debug_info_t *id,
+				   struct debug_view *view,
+				   char *out_buf);
+typedef int (debug_input_proc_t) (debug_info_t *id,
+				  struct debug_view *view,
+				  struct file *file,
 				  const char __user *user_buf,
-				  size_t in_buf_size, loff_t* offset);
+				  size_t in_buf_size, loff_t *offset);
+
+int debug_dflt_header_fn(debug_info_t *id, struct debug_view *view,
+			 int area, debug_entry_t *entry, char *out_buf);
 
-int debug_dflt_header_fn(debug_info_t* id, struct debug_view* view,
-		         int area, debug_entry_t* entry, char* out_buf);						
-				
 struct debug_view {
 	char name[DEBUG_MAX_NAME_LEN];
-	debug_prolog_proc_t* prolog_proc;
-	debug_header_proc_t* header_proc;
-	debug_format_proc_t* format_proc;
-	debug_input_proc_t*  input_proc;
-	void*                private_data;
+	debug_prolog_proc_t *prolog_proc;
+	debug_header_proc_t *header_proc;
+	debug_format_proc_t *format_proc;
+	debug_input_proc_t  *input_proc;
+	void		    *private_data;
 };
 
 extern struct debug_view debug_hex_ascii_view;
@@ -86,65 +87,67 @@ extern struct debug_view debug_sprintf_view;
 
 /* do NOT use the _common functions */
 
-debug_entry_t* debug_event_common(debug_info_t* id, int level, 
-                                  const void* data, int length);
+debug_entry_t *debug_event_common(debug_info_t *id, int level,
+				  const void *data, int length);
 
-debug_entry_t* debug_exception_common(debug_info_t* id, int level, 
-                                      const void* data, int length);
+debug_entry_t *debug_exception_common(debug_info_t *id, int level,
+				      const void *data, int length);
 
 /* Debug Feature API: */
 
 debug_info_t *debug_register(const char *name, int pages, int nr_areas,
-                             int buf_size);
+			     int buf_size);
 
 debug_info_t *debug_register_mode(const char *name, int pages, int nr_areas,
 				  int buf_size, umode_t mode, uid_t uid,
 				  gid_t gid);
 
-void debug_unregister(debug_info_t* id);
+void debug_unregister(debug_info_t *id);
 
-void debug_set_level(debug_info_t* id, int new_level);
+void debug_set_level(debug_info_t *id, int new_level);
 
 void debug_set_critical(void);
 void debug_stop_all(void);
 
-static inline bool debug_level_enabled(debug_info_t* id, int level)
+static inline bool debug_level_enabled(debug_info_t *id, int level)
 {
 	return level <= id->level;
 }
 
-static inline debug_entry_t*
-debug_event(debug_info_t* id, int level, void* data, int length)
+static inline debug_entry_t *debug_event(debug_info_t *id, int level,
+					 void *data, int length)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,data,length);
+	return debug_event_common(id, level, data, length);
 }
 
-static inline debug_entry_t*
-debug_int_event(debug_info_t* id, int level, unsigned int tag)
+static inline debug_entry_t *debug_int_event(debug_info_t *id, int level,
+					     unsigned int tag)
 {
-        unsigned int t=tag;
+	unsigned int t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,&t,sizeof(unsigned int));
+	return debug_event_common(id, level, &t, sizeof(unsigned int));
 }
 
-static inline debug_entry_t *
-debug_long_event (debug_info_t* id, int level, unsigned long tag)
+static inline debug_entry_t *debug_long_event(debug_info_t *id, int level,
+					      unsigned long tag)
 {
-        unsigned long t=tag;
+	unsigned long t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,&t,sizeof(unsigned long));
+	return debug_event_common(id, level, &t, sizeof(unsigned long));
 }
 
-static inline debug_entry_t*
-debug_text_event(debug_info_t* id, int level, const char* txt)
+static inline debug_entry_t *debug_text_event(debug_info_t *id, int level,
+					      const char *txt)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_event_common(id,level,txt,strlen(txt));
+	return debug_event_common(id, level, txt, strlen(txt));
 }
 
 /*
@@ -160,6 +163,7 @@ __debug_sprintf_event(debug_info_t *id, int level, char *string, ...)
 	debug_entry_t *__ret;						\
 	debug_info_t *__id = _id;					\
 	int __level = _level;						\
+									\
 	if ((!__id) || (__level > __id->level))				\
 		__ret = NULL;						\
 	else								\
@@ -168,38 +172,40 @@ __debug_sprintf_event(debug_info_t *id, int level, char *string, ...)
 	__ret;								\
 })
 
-static inline debug_entry_t*
-debug_exception(debug_info_t* id, int level, void* data, int length)
+static inline debug_entry_t *debug_exception(debug_info_t *id, int level,
+					     void *data, int length)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,data,length);
+	return debug_exception_common(id, level, data, length);
 }
 
-static inline debug_entry_t*
-debug_int_exception(debug_info_t* id, int level, unsigned int tag)
+static inline debug_entry_t *debug_int_exception(debug_info_t *id, int level,
+						 unsigned int tag)
 {
-        unsigned int t=tag;
+	unsigned int t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,&t,sizeof(unsigned int));
+	return debug_exception_common(id, level, &t, sizeof(unsigned int));
 }
 
-static inline debug_entry_t *
-debug_long_exception (debug_info_t* id, int level, unsigned long tag)
+static inline debug_entry_t *debug_long_exception (debug_info_t *id, int level,
+						   unsigned long tag)
 {
-        unsigned long t=tag;
+	unsigned long t = tag;
+
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,&t,sizeof(unsigned long));
+	return debug_exception_common(id, level, &t, sizeof(unsigned long));
 }
 
-static inline debug_entry_t*
-debug_text_exception(debug_info_t* id, int level, const char* txt)
+static inline debug_entry_t *debug_text_exception(debug_info_t *id, int level,
+						  const char *txt)
 {
 	if ((!id) || (level > id->level) || (id->pages_per_area == 0))
 		return NULL;
-        return debug_exception_common(id,level,txt,strlen(txt));
+	return debug_exception_common(id, level, txt, strlen(txt));
 }
 
 /*
@@ -215,6 +221,7 @@ __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)
 	debug_entry_t *__ret;						\
 	debug_info_t *__id = _id;					\
 	int __level = _level;						\
+									\
 	if ((!__id) || (__level > __id->level))				\
 		__ret = NULL;						\
 	else								\
@@ -223,13 +230,13 @@ __debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)
 	__ret;								\
 })
 
-int debug_register_view(debug_info_t* id, struct debug_view* view);
-int debug_unregister_view(debug_info_t* id, struct debug_view* view);
+int debug_register_view(debug_info_t *id, struct debug_view *view);
+int debug_unregister_view(debug_info_t *id, struct debug_view *view);
 
 /*
    define the debug levels:
    - 0 No debugging output to console or syslog
-   - 1 Log internal errors to syslog, ignore check conditions 
+   - 1 Log internal errors to syslog, ignore check conditions
    - 2 Log internal errors and check conditions to syslog
    - 3 Log internal errors to console, log check conditions to syslog
    - 4 Log internal errors and check conditions to console
@@ -247,17 +254,17 @@ int debug_unregister_view(debug_info_t* id, struct debug_view* view);
 #define INTERNAL_DEBMSG(x,y...) "D" __FILE__ "%d: " x, __LINE__, y
 
 #if DEBUG_LEVEL > 0
-#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_INFO(x...) printk ( KERN_INFO PRINTK_HEADER x )
-#define PRINT_WARN(x...) printk ( KERN_WARNING PRINTK_HEADER x )
-#define PRINT_ERR(x...) printk ( KERN_ERR PRINTK_HEADER x )
-#define PRINT_FATAL(x...) panic ( PRINTK_HEADER x )
+#define PRINT_DEBUG(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_INFO(x...)	printk(KERN_INFO PRINTK_HEADER x)
+#define PRINT_WARN(x...)	printk(KERN_WARNING PRINTK_HEADER x)
+#define PRINT_ERR(x...)		printk(KERN_ERR PRINTK_HEADER x)
+#define PRINT_FATAL(x...)	panic(PRINTK_HEADER x)
 #else
-#define PRINT_DEBUG(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_INFO(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_WARN(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_ERR(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#define PRINT_FATAL(x...) printk ( KERN_DEBUG PRINTK_HEADER x )
-#endif				/* DASD_DEBUG */
-
-#endif				/* DEBUG_H */
+#define PRINT_DEBUG(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_INFO(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_WARN(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_ERR(x...)		printk(KERN_DEBUG PRINTK_HEADER x)
+#define PRINT_FATAL(x...)	printk(KERN_DEBUG PRINTK_HEADER x)
+#endif /* DASD_DEBUG */
+
+#endif /* DEBUG_H */
diff --git a/arch/s390/include/asm/delay.h b/arch/s390/include/asm/delay.h
index 3f6e4095f471..898323fd93d2 100644
--- a/arch/s390/include/asm/delay.h
+++ b/arch/s390/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/diag.h b/arch/s390/include/asm/diag.h
index 88162bb5c190..6db78567294c 100644
--- a/arch/s390/include/asm/diag.h
+++ b/arch/s390/include/asm/diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * s390 diagnose functions
  *
diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h
index 37f617dfbede..b0480c60a8e1 100644
--- a/arch/s390/include/asm/dis.h
+++ b/arch/s390/include/asm/dis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Disassemble s390 instructions.
  *
@@ -8,32 +9,7 @@
 #ifndef __ASM_S390_DIS_H__
 #define __ASM_S390_DIS_H__
 
-/* Type of operand */
-#define OPERAND_GPR	0x1	/* Operand printed as %rx */
-#define OPERAND_FPR	0x2	/* Operand printed as %fx */
-#define OPERAND_AR	0x4	/* Operand printed as %ax */
-#define OPERAND_CR	0x8	/* Operand printed as %cx */
-#define OPERAND_VR	0x10	/* Operand printed as %vx */
-#define OPERAND_DISP	0x20	/* Operand printed as displacement */
-#define OPERAND_BASE	0x40	/* Operand printed as base register */
-#define OPERAND_INDEX	0x80	/* Operand printed as index register */
-#define OPERAND_PCREL	0x100	/* Operand printed as pc-relative symbol */
-#define OPERAND_SIGNED	0x200	/* Operand printed as signed value */
-#define OPERAND_LENGTH	0x400	/* Operand printed as length (+1) */
-
-
-struct s390_operand {
-	int bits;		/* The number of bits in the operand. */
-	int shift;		/* The number of bits to shift. */
-	int flags;		/* One bit syntax flags. */
-};
-
-struct s390_insn {
-	const char name[5];
-	unsigned char opfrag;
-	unsigned char format;
-};
-
+#include <generated/dis.h>
 
 static inline int insn_length(unsigned char code)
 {
@@ -44,7 +20,6 @@ struct pt_regs;
 
 void show_code(struct pt_regs *regs);
 void print_fn_code(unsigned char *code, unsigned long len);
-int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
 struct s390_insn *find_insn(unsigned char *code);
 
 static inline int is_known_insn(unsigned char *code)
diff --git a/arch/s390/include/asm/dma-mapping.h b/arch/s390/include/asm/dma-mapping.h
index 512ad0eaa11a..8fc8764fe5ee 100644
--- a/arch/s390/include/asm/dma-mapping.h
+++ b/arch/s390/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_DMA_MAPPING_H
 #define _ASM_S390_DMA_MAPPING_H
 
diff --git a/arch/s390/include/asm/dma.h b/arch/s390/include/asm/dma.h
index bb9bdcd20864..6f26f35d4a71 100644
--- a/arch/s390/include/asm/dma.h
+++ b/arch/s390/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_DMA_H
 #define _ASM_S390_DMA_H
 
diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index 144809a3f4f6..eb5323161f11 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_EADM_H
 #define _ASM_S390_EADM_H
 
diff --git a/arch/s390/include/asm/ebcdic.h b/arch/s390/include/asm/ebcdic.h
index b71735eab23f..29441beb92e6 100644
--- a/arch/s390/include/asm/ebcdic.h
+++ b/arch/s390/include/asm/ebcdic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
  *
diff --git a/arch/s390/include/asm/elf.h b/arch/s390/include/asm/elf.h
index 65998a1f5d43..9a3cb3983c01 100644
--- a/arch/s390/include/asm/elf.h
+++ b/arch/s390/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/exec.h b/arch/s390/include/asm/exec.h
index c4a93d6327fa..641bfbec9d52 100644
--- a/arch/s390/include/asm/exec.h
+++ b/arch/s390/include/asm/exec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2009
  *
diff --git a/arch/s390/include/asm/extable.h b/arch/s390/include/asm/extable.h
index 16cfe2d62eeb..80a4e5a9cb46 100644
--- a/arch/s390/include/asm/extable.h
+++ b/arch/s390/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __S390_EXTABLE_H
 #define __S390_EXTABLE_H
 /*
diff --git a/arch/s390/include/asm/extmem.h b/arch/s390/include/asm/extmem.h
index 6276002d76ba..568fd81bb77b 100644
--- a/arch/s390/include/asm/extmem.h
+++ b/arch/s390/include/asm/extmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  definitions for external memory segment support
  *  Copyright IBM Corp. 2003
diff --git a/arch/s390/include/asm/facility.h b/arch/s390/include/asm/facility.h
index cb60d5c5755d..f040644575b7 100644
--- a/arch/s390/include/asm/facility.h
+++ b/arch/s390/include/asm/facility.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2009
  *
diff --git a/arch/s390/include/asm/fcx.h b/arch/s390/include/asm/fcx.h
index 04cb4b4bcc5f..cff0749e9657 100644
--- a/arch/s390/include/asm/fcx.h
+++ b/arch/s390/include/asm/fcx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Functions for assembling fcx enabled I/O control blocks.
  *
diff --git a/arch/s390/include/asm/fpu/api.h b/arch/s390/include/asm/fpu/api.h
index 02124d66bfb5..34a7ae68485c 100644
--- a/arch/s390/include/asm/fpu/api.h
+++ b/arch/s390/include/asm/fpu/api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * In-kernel FPU support functions
  *
diff --git a/arch/s390/include/asm/fpu/internal.h b/arch/s390/include/asm/fpu/internal.h
index 629c90865a07..4a71dbbf76fb 100644
--- a/arch/s390/include/asm/fpu/internal.h
+++ b/arch/s390/include/asm/fpu/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * FPU state and register content conversion primitives
  *
diff --git a/arch/s390/include/asm/fpu/types.h b/arch/s390/include/asm/fpu/types.h
index bce255ead72b..d889e9436865 100644
--- a/arch/s390/include/asm/fpu/types.h
+++ b/arch/s390/include/asm/fpu/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * FPU data structures
  *
diff --git a/arch/s390/include/asm/ftrace.h b/arch/s390/include/asm/ftrace.h
index 836c56290499..cfccc0edd00d 100644
--- a/arch/s390/include/asm/ftrace.h
+++ b/arch/s390/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_FTRACE_H
 #define _ASM_S390_FTRACE_H
 
diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h
index 8f8eec9e1198..9b5a3469fed9 100644
--- a/arch/s390/include/asm/futex.h
+++ b/arch/s390/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_FUTEX_H
 #define _ASM_S390_FUTEX_H
 
diff --git a/arch/s390/include/asm/gmap.h b/arch/s390/include/asm/gmap.h
index 741ddba0bf11..e07cce88dfb0 100644
--- a/arch/s390/include/asm/gmap.h
+++ b/arch/s390/include/asm/gmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  KVM guest address space mapping code
  *
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index b7eabaaeffbd..a296c6acfd07 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/include/asm/hugetlb.h b/arch/s390/include/asm/hugetlb.h
index d95869ce3ca2..9c5fc50204dd 100644
--- a/arch/s390/include/asm/hugetlb.h
+++ b/arch/s390/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  IBM System z Huge TLB Page Support for Kernel.
  *
diff --git a/arch/s390/include/asm/hw_irq.h b/arch/s390/include/asm/hw_irq.h
index ee96a8b697f9..adae176757ae 100644
--- a/arch/s390/include/asm/hw_irq.h
+++ b/arch/s390/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _HW_IRQ_H
 #define _HW_IRQ_H
 
diff --git a/arch/s390/include/asm/idals.h b/arch/s390/include/asm/idals.h
index 280b60a0bcd4..15578fd762f6 100644
--- a/arch/s390/include/asm/idals.h
+++ b/arch/s390/include/asm/idals.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/idle.h b/arch/s390/include/asm/idle.h
index 51ff96d9f287..6d4226dcf42a 100644
--- a/arch/s390/include/asm/idle.h
+++ b/arch/s390/include/asm/idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2014
  *
diff --git a/arch/s390/include/asm/io.h b/arch/s390/include/asm/io.h
index 904e4b3af95d..f34d729347e4 100644
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 6810bd757312..186c7b5f5511 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * s390 (re)ipl support
  *
@@ -12,6 +13,8 @@
 #include <asm/cio.h>
 #include <asm/setup.h>
 
+#define NSS_NAME_SIZE	8
+
 #define IPL_PARMBLOCK_ORIGIN	0x2000
 
 #define IPL_PARM_BLK_FCP_LEN (sizeof(struct ipl_list_hdr) + \
@@ -105,7 +108,6 @@ extern size_t append_ipl_scpdata(char *, size_t);
 enum {
 	IPL_DEVNO_VALID		= 1,
 	IPL_PARMBLOCK_VALID	= 2,
-	IPL_NSS_VALID		= 4,
 };
 
 enum ipl_type {
diff --git a/arch/s390/include/asm/irq.h b/arch/s390/include/asm/irq.h
index 70c9bce766f5..2f7f27e5493f 100644
--- a/arch/s390/include/asm/irq.h
+++ b/arch/s390/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IRQ_H
 #define _ASM_IRQ_H
 
diff --git a/arch/s390/include/asm/irqflags.h b/arch/s390/include/asm/irqflags.h
index 595a275c36f8..586df4c9e2f2 100644
--- a/arch/s390/include/asm/irqflags.h
+++ b/arch/s390/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2006, 2010
  *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/include/asm/isc.h b/arch/s390/include/asm/isc.h
index 8a0b721a9b8d..6cb9e2ed05b6 100644
--- a/arch/s390/include/asm/isc.h
+++ b/arch/s390/include/asm/isc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_ISC_H
 #define _ASM_S390_ISC_H
 
diff --git a/arch/s390/include/asm/itcw.h b/arch/s390/include/asm/itcw.h
index fb1bedd3dc0d..59b73961320d 100644
--- a/arch/s390/include/asm/itcw.h
+++ b/arch/s390/include/asm/itcw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Functions for incremental construction of fcx enabled I/O control blocks.
  *
diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h
index 9be198f5ee79..40f651292aa7 100644
--- a/arch/s390/include/asm/jump_label.h
+++ b/arch/s390/include/asm/jump_label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_JUMP_LABEL_H
 #define _ASM_S390_JUMP_LABEL_H
 
diff --git a/arch/s390/include/asm/kdebug.h b/arch/s390/include/asm/kdebug.h
index 5c1abd47612a..d5327f064799 100644
--- a/arch/s390/include/asm/kdebug.h
+++ b/arch/s390/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S390_KDEBUG_H
 #define _S390_KDEBUG_H
 
diff --git a/arch/s390/include/asm/kexec.h b/arch/s390/include/asm/kexec.h
index dccf24ee26d3..1d708a419326 100644
--- a/arch/s390/include/asm/kexec.h
+++ b/arch/s390/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2005
  *
diff --git a/arch/s390/include/asm/kprobes.h b/arch/s390/include/asm/kprobes.h
index 28792ef82c83..921391f2341e 100644
--- a/arch/s390/include/asm/kprobes.h
+++ b/arch/s390/include/asm/kprobes.h
@@ -63,8 +63,6 @@ typedef u16 kprobe_opcode_t;
 
 #define kretprobe_blacklist_size 0
 
-#define KPROBE_SWAP_INST	0x10
-
 /* Architecture specific copy of original instruction */
 struct arch_specific_insn {
 	/* copy of original instruction */
diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 51375e766e90..fd006a272024 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -736,7 +736,6 @@ struct kvm_arch{
 	wait_queue_head_t ipte_wq;
 	int ipte_lock_count;
 	struct mutex ipte_mutex;
-	struct ratelimit_state sthyi_limit;
 	spinlock_t start_stop_lock;
 	struct sie_page2 *sie_page2;
 	struct kvm_s390_cpu_model model;
diff --git a/arch/s390/include/asm/linkage.h b/arch/s390/include/asm/linkage.h
index 27da78cf416d..1b95da3fdd64 100644
--- a/arch/s390/include/asm/linkage.h
+++ b/arch/s390/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index a6870ea6ea8b..9eb36a1592c7 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 1999, 2012
  *    Author(s): Hartmut Penner <hp@de.ibm.com>,
@@ -133,8 +134,9 @@ struct lowcore {
 	__u8	pad_0x03b4[0x03b8-0x03b4];	/* 0x03b4 */
 	__u64	gmap;				/* 0x03b8 */
 	__u32	spinlock_lockval;		/* 0x03c0 */
-	__u32	fpu_flags;			/* 0x03c4 */
-	__u8	pad_0x03c8[0x0400-0x03c8];	/* 0x03c8 */
+	__u32	spinlock_index;			/* 0x03c4 */
+	__u32	fpu_flags;			/* 0x03c8 */
+	__u8	pad_0x03cc[0x0400-0x03cc];	/* 0x03cc */
 
 	/* Per cpu primary space access list */
 	__u32	paste[16];			/* 0x0400 */
diff --git a/arch/s390/include/asm/mmu.h b/arch/s390/include/asm/mmu.h
index 3f46a6577b8d..db35c41a59d5 100644
--- a/arch/s390/include/asm/mmu.h
+++ b/arch/s390/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 3c9abedc323c..43607bb12cc2 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/mmzone.h b/arch/s390/include/asm/mmzone.h
index a9e834e60b84..73e3e7c6976c 100644
--- a/arch/s390/include/asm/mmzone.h
+++ b/arch/s390/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/include/asm/module.h b/arch/s390/include/asm/module.h
index df1f861a848a..e0a6d29846e2 100644
--- a/arch/s390/include/asm/module.h
+++ b/arch/s390/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_MODULE_H
 #define _ASM_S390_MODULE_H
 
diff --git a/arch/s390/include/asm/nmi.h b/arch/s390/include/asm/nmi.h
index c8e211b9a002..1e5dc4537bf2 100644
--- a/arch/s390/include/asm/nmi.h
+++ b/arch/s390/include/asm/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *   Machine check handler definitions
  *
@@ -25,12 +26,9 @@
 #define MCCK_CODE_CPU_TIMER_VALID	_BITUL(63 - 46)
 #define MCCK_CODE_PSW_MWP_VALID		_BITUL(63 - 20)
 #define MCCK_CODE_PSW_IA_VALID		_BITUL(63 - 23)
-
-#define MCCK_CR14_CR_PENDING_SUB_MASK	(1 << 28)
-#define MCCK_CR14_RECOVERY_SUB_MASK	(1 << 27)
-#define MCCK_CR14_DEGRAD_SUB_MASK	(1 << 26)
-#define MCCK_CR14_EXT_DAMAGE_SUB_MASK	(1 << 25)
-#define MCCK_CR14_WARN_SUB_MASK		(1 << 24)
+#define MCCK_CODE_CR_VALID		_BITUL(63 - 29)
+#define MCCK_CODE_GS_VALID		_BITUL(63 - 36)
+#define MCCK_CODE_FC_VALID		_BITUL(63 - 43)
 
 #ifndef __ASSEMBLY__
 
@@ -86,6 +84,8 @@ union mci {
 
 #define MCESA_ORIGIN_MASK	(~0x3ffUL)
 #define MCESA_LC_MASK		(0xfUL)
+#define MCESA_MIN_SIZE		(1024)
+#define MCESA_MAX_SIZE		(2048)
 
 struct mcesa {
 	u8 vector_save_area[1024];
@@ -94,8 +94,12 @@ struct mcesa {
 
 struct pt_regs;
 
-extern void s390_handle_mcck(void);
-extern void s390_do_machine_check(struct pt_regs *regs);
+void nmi_alloc_boot_cpu(struct lowcore *lc);
+int nmi_alloc_per_cpu(struct lowcore *lc);
+void nmi_free_per_cpu(struct lowcore *lc);
+
+void s390_handle_mcck(void);
+void s390_do_machine_check(struct pt_regs *regs);
 
 #endif /* __ASSEMBLY__ */
 #endif /* _ASM_S390_NMI_H */
diff --git a/arch/s390/include/asm/numa.h b/arch/s390/include/asm/numa.h
index dc19ee0c92aa..35f8cbe7e5bb 100644
--- a/arch/s390/include/asm/numa.h
+++ b/arch/s390/include/asm/numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/include/asm/os_info.h b/arch/s390/include/asm/os_info.h
index 943475382d51..3c89279d2a4b 100644
--- a/arch/s390/include/asm/os_info.h
+++ b/arch/s390/include/asm/os_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * OS info memory interface
  *
diff --git a/arch/s390/include/asm/page-states.h b/arch/s390/include/asm/page-states.h
index 22b0f49e87c1..c33c4deb545f 100644
--- a/arch/s390/include/asm/page-states.h
+++ b/arch/s390/include/asm/page-states.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2017
  *    Author(s): Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 5d5c2b3500a4..41e3908b397f 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 386df9adef0a..12fe3591034f 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_S390_PCI_H
 #define __ASM_S390_PCI_H
 
diff --git a/arch/s390/include/asm/pci_clp.h b/arch/s390/include/asm/pci_clp.h
index 938b8cc19fc6..b3b31b31f0d3 100644
--- a/arch/s390/include/asm/pci_clp.h
+++ b/arch/s390/include/asm/pci_clp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_PCI_CLP_H
 #define _ASM_S390_PCI_CLP_H
 
diff --git a/arch/s390/include/asm/pci_debug.h b/arch/s390/include/asm/pci_debug.h
index ac24b26fc065..5dfe47588277 100644
--- a/arch/s390/include/asm/pci_debug.h
+++ b/arch/s390/include/asm/pci_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S390_ASM_PCI_DEBUG_H
 #define _S390_ASM_PCI_DEBUG_H
 
@@ -18,11 +19,7 @@ extern debug_info_t *pci_debug_err_id;
 
 static inline void zpci_err_hex(void *addr, int len)
 {
-	while (len > 0) {
-		debug_event(pci_debug_err_id, 0, (void *) addr, len);
-		len -= pci_debug_err_id->buf_size;
-		addr += pci_debug_err_id->buf_size;
-	}
+	debug_event(pci_debug_err_id, 0, addr, len);
 }
 
 #endif
diff --git a/arch/s390/include/asm/pci_dma.h b/arch/s390/include/asm/pci_dma.h
index 92df3eb8d14e..e8d9161fa17a 100644
--- a/arch/s390/include/asm/pci_dma.h
+++ b/arch/s390/include/asm/pci_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_PCI_DMA_H
 #define _ASM_S390_PCI_DMA_H
 
diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h
index 34abcf275799..ba22a6ea51a1 100644
--- a/arch/s390/include/asm/pci_insn.h
+++ b/arch/s390/include/asm/pci_insn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_PCI_INSN_H
 #define _ASM_S390_PCI_INSN_H
 
@@ -81,6 +82,6 @@ int zpci_refresh_trans(u64 fn, u64 addr, u64 range);
 int zpci_load(u64 *data, u64 req, u64 offset);
 int zpci_store(u64 data, u64 req, u64 offset);
 int zpci_store_block(const u64 *data, u64 req, u64 offset);
-void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
+int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc);
 
 #endif
diff --git a/arch/s390/include/asm/pci_io.h b/arch/s390/include/asm/pci_io.h
index 69aa18be61af..cbb9cb9c6547 100644
--- a/arch/s390/include/asm/pci_io.h
+++ b/arch/s390/include/asm/pci_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_PCI_IO_H
 #define _ASM_S390_PCI_IO_H
 
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 90240dfef76a..0095ddb58ff6 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_S390_PERCPU__
 #define __ARCH_S390_PERCPU__
 
diff --git a/arch/s390/include/asm/perf_event.h b/arch/s390/include/asm/perf_event.h
index dd32beb9d30c..79aa6421fedb 100644
--- a/arch/s390/include/asm/perf_event.h
+++ b/arch/s390/include/asm/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Performance event support - s390 specific definitions.
  *
diff --git a/arch/s390/include/asm/pgalloc.h b/arch/s390/include/asm/pgalloc.h
index a0d9167519b1..c7b4333d1de0 100644
--- a/arch/s390/include/asm/pgalloc.h
+++ b/arch/s390/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
@@ -12,6 +13,7 @@
 #define _S390_PGALLOC_H
 
 #include <linux/threads.h>
+#include <linux/string.h>
 #include <linux/gfp.h>
 #include <linux/mm.h>
 
@@ -27,24 +29,9 @@ void page_table_free_rcu(struct mmu_gather *, unsigned long *, unsigned long);
 void page_table_free_pgste(struct page *page);
 extern int page_table_allocate_pgste;
 
-static inline void clear_table(unsigned long *s, unsigned long val, size_t n)
-{
-	struct addrtype { char _[256]; };
-	int i;
-
-	for (i = 0; i < n; i += 256) {
-		*s = val;
-		asm volatile(
-			"mvc	8(248,%[s]),0(%[s])\n"
-			: "+m" (*(struct addrtype *) s)
-			: [s] "a" (s));
-		s += 256 / sizeof(long);
-	}
-}
-
 static inline void crst_table_init(unsigned long *crst, unsigned long entry)
 {
-	clear_table(crst, entry, _CRST_TABLE_SIZE);
+	memset64((u64 *)crst, entry, _CRST_ENTRIES);
 }
 
 static inline unsigned long pgd_entry_type(struct mm_struct *mm)
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index dce708e061ea..d7fe9838084d 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
@@ -1507,7 +1508,9 @@ static inline pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,
 static inline void pmdp_invalidate(struct vm_area_struct *vma,
 				   unsigned long addr, pmd_t *pmdp)
 {
-	pmdp_xchg_direct(vma->vm_mm, addr, pmdp, __pmd(_SEGMENT_ENTRY_EMPTY));
+	pmd_t pmd = __pmd(pmd_val(*pmdp) | _SEGMENT_ENTRY_INVALID);
+
+	pmdp_xchg_direct(vma->vm_mm, addr, pmdp, pmd);
 }
 
 #define __HAVE_ARCH_PMDP_SET_WRPROTECT
diff --git a/arch/s390/include/asm/pkey.h b/arch/s390/include/asm/pkey.h
index 4c484590d858..053117ba7328 100644
--- a/arch/s390/include/asm/pkey.h
+++ b/arch/s390/include/asm/pkey.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Kernelspace interface to the pkey device driver
  *
diff --git a/arch/s390/include/asm/preempt.h b/arch/s390/include/asm/preempt.h
index b0776b2c8dcf..23a14d187fb1 100644
--- a/arch/s390/include/asm/preempt.h
+++ b/arch/s390/include/asm/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PREEMPT_H
 #define __ASM_PREEMPT_H
 
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index c25d57e0aad3..f25bfe888933 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
@@ -21,6 +22,7 @@
 #define CIF_IGNORE_IRQ		5	/* ignore interrupt (for udelay) */
 #define CIF_ENABLED_WAIT	6	/* in enabled wait state */
 #define CIF_MCCK_GUEST		7	/* machine check happening in guest */
+#define CIF_DEDICATED_CPU	8	/* this CPU is dedicated */
 
 #define _CIF_MCCK_PENDING	_BITUL(CIF_MCCK_PENDING)
 #define _CIF_ASCE_PRIMARY	_BITUL(CIF_ASCE_PRIMARY)
@@ -30,6 +32,7 @@
 #define _CIF_IGNORE_IRQ		_BITUL(CIF_IGNORE_IRQ)
 #define _CIF_ENABLED_WAIT	_BITUL(CIF_ENABLED_WAIT)
 #define _CIF_MCCK_GUEST		_BITUL(CIF_MCCK_GUEST)
+#define _CIF_DEDICATED_CPU	_BITUL(CIF_DEDICATED_CPU)
 
 #ifndef __ASSEMBLY__
 
@@ -218,10 +221,10 @@ void show_registers(struct pt_regs *regs);
 void show_cacheinfo(struct seq_file *m);
 
 /* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
+static inline void release_thread(struct task_struct *tsk) { }
 
-/* Free guarded storage control block for current */
-void exit_thread_gs(void);
+/* Free guarded storage control block */
+void guarded_storage_release(struct task_struct *tsk);
 
 unsigned long get_wchan(struct task_struct *p);
 #define task_pt_regs(tsk) ((struct pt_regs *) \
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 853b01245c20..2f84e77f1f1b 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index eaee69e7c42a..de11ecc99c7c 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2000, 2008
  * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
diff --git a/arch/s390/include/asm/reset.h b/arch/s390/include/asm/reset.h
index fe11fa88a0e0..6450b31ade03 100644
--- a/arch/s390/include/asm/reset.h
+++ b/arch/s390/include/asm/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2006
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
diff --git a/arch/s390/include/asm/runtime_instr.h b/arch/s390/include/asm/runtime_instr.h
index 402ad6df4897..6b1540337ed6 100644
--- a/arch/s390/include/asm/runtime_instr.h
+++ b/arch/s390/include/asm/runtime_instr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RUNTIME_INSTR_H
 #define _RUNTIME_INSTR_H
 
@@ -5,55 +6,55 @@
 #define S390_RUNTIME_INSTR_STOP		0x2
 
 struct runtime_instr_cb {
-	__u64 buf_current;
-	__u64 buf_origin;
-	__u64 buf_limit;
+	__u64 rca;
+	__u64 roa;
+	__u64 rla;
 
-	__u32 valid		: 1;
-	__u32 pstate		: 1;
-	__u32 pstate_set_buf	: 1;
-	__u32 home_space	: 1;
-	__u32 altered		: 1;
-	__u32			: 3;
-	__u32 pstate_sample	: 1;
-	__u32 sstate_sample	: 1;
-	__u32 pstate_collect	: 1;
-	__u32 sstate_collect	: 1;
-	__u32			: 1;
-	__u32 halted_int	: 1;
-	__u32 int_requested	: 1;
-	__u32 buffer_full_int	: 1;
+	__u32 v			: 1;
+	__u32 s			: 1;
+	__u32 k			: 1;
+	__u32 h			: 1;
+	__u32 a			: 1;
+	__u32 reserved1		: 3;
+	__u32 ps		: 1;
+	__u32 qs		: 1;
+	__u32 pc		: 1;
+	__u32 qc		: 1;
+	__u32 reserved2		: 1;
+	__u32 g			: 1;
+	__u32 u			: 1;
+	__u32 l			: 1;
 	__u32 key		: 4;
-	__u32			: 9;
+	__u32 reserved3		: 8;
+	__u32 t			: 1;
 	__u32 rgs		: 3;
 
-	__u32 mode		: 4;
-	__u32 next		: 1;
+	__u32 m			: 4;
+	__u32 n			: 1;
 	__u32 mae		: 1;
-	__u32			: 2;
-	__u32 call_type_br	: 1;
-	__u32 return_type_br	: 1;
-	__u32 other_type_br	: 1;
-	__u32 bc_other_type	: 1;
-	__u32 emit		: 1;
-	__u32 tx_abort		: 1;
-	__u32			: 2;
-	__u32 bp_xn		: 1;
-	__u32 bp_xt		: 1;
-	__u32 bp_ti		: 1;
-	__u32 bp_ni		: 1;
-	__u32 suppr_y		: 1;
-	__u32 suppr_z		: 1;
+	__u32 reserved4		: 2;
+	__u32 c			: 1;
+	__u32 r			: 1;
+	__u32 b			: 1;
+	__u32 j			: 1;
+	__u32 e			: 1;
+	__u32 x			: 1;
+	__u32 reserved5		: 2;
+	__u32 bpxn		: 1;
+	__u32 bpxt		: 1;
+	__u32 bpti		: 1;
+	__u32 bpni		: 1;
+	__u32 reserved6		: 2;
 
-	__u32 dc_miss_extra	: 1;
-	__u32 lat_lev_ignore	: 1;
-	__u32 ic_lat_lev	: 4;
-	__u32 dc_lat_lev	: 4;
+	__u32 d			: 1;
+	__u32 f			: 1;
+	__u32 ic		: 4;
+	__u32 dc		: 4;
 
-	__u64 reserved1;
-	__u64 scaling_factor;
+	__u64 reserved7;
+	__u64 sf;
 	__u64 rsic;
-	__u64 reserved2;
+	__u64 reserved8;
 } __packed __aligned(8);
 
 extern struct runtime_instr_cb runtime_instr_empty_cb;
@@ -85,6 +86,8 @@ static inline void restore_ri_cb(struct runtime_instr_cb *cb_next,
 		load_runtime_instr_cb(&runtime_instr_empty_cb);
 }
 
-void exit_thread_runtime_instr(void);
+struct task_struct;
+
+void runtime_instr_release(struct task_struct *tsk);
 
 #endif /* _RUNTIME_INSTR_H */
diff --git a/arch/s390/include/asm/rwsem.h b/arch/s390/include/asm/rwsem.h
deleted file mode 100644
index 597e7e96b59e..000000000000
--- a/arch/s390/include/asm/rwsem.h
+++ /dev/null
@@ -1,210 +0,0 @@
-#ifndef _S390_RWSEM_H
-#define _S390_RWSEM_H
-
-/*
- *  S390 version
- *    Copyright IBM Corp. 2002
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
- *
- *  Based on asm-alpha/semaphore.h and asm-i386/rwsem.h
- */
-
-/*
- *
- * The MSW of the count is the negated number of active writers and waiting
- * lockers, and the LSW is the total number of active locks
- *
- * The lock count is initialized to 0 (no active and no waiting lockers).
- *
- * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an
- * uncontended lock. This can be determined because XADD returns the old value.
- * Readers increment by 1 and see a positive value when uncontended, negative
- * if there are writers (and maybe) readers waiting (in which case it goes to
- * sleep).
- *
- * The value of WAITING_BIAS supports up to 32766 waiting processes. This can
- * be extended to 65534 by manually checking the whole MSW rather than relying
- * on the S flag.
- *
- * The value of ACTIVE_BIAS supports up to 65535 active processes.
- *
- * This should be totally fair - if anything is waiting, a process that wants a
- * lock will go to the back of the queue. When the currently active lock is
- * released, if there's a writer at the front of the queue, then that and only
- * that will be woken up; if there's a bunch of consecutive readers at the
- * front, then they'll all be woken up, but no other readers will be.
- */
-
-#ifndef _LINUX_RWSEM_H
-#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
-#endif
-
-#define RWSEM_UNLOCKED_VALUE	0x0000000000000000L
-#define RWSEM_ACTIVE_BIAS	0x0000000000000001L
-#define RWSEM_ACTIVE_MASK	0x00000000ffffffffL
-#define RWSEM_WAITING_BIAS	(-0x0000000100000000L)
-#define RWSEM_ACTIVE_READ_BIAS	RWSEM_ACTIVE_BIAS
-#define RWSEM_ACTIVE_WRITE_BIAS	(RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
-
-/*
- * lock for reading
- */
-static inline void __down_read(struct rw_semaphore *sem)
-{
-	signed long old, new;
-
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	aghi	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
-		: "cc", "memory");
-	if (old < 0)
-		rwsem_down_read_failed(sem);
-}
-
-/*
- * trylock for reading -- returns 1 if successful, 0 if contention
- */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
-{
-	signed long old, new;
-
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	ltgr	%1,%0\n"
-		"	jm	1f\n"
-		"	aghi	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b\n"
-		"1:"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "i" (RWSEM_ACTIVE_READ_BIAS)
-		: "cc", "memory");
-	return old >= 0 ? 1 : 0;
-}
-
-/*
- * lock for writing
- */
-static inline long ___down_write(struct rw_semaphore *sem)
-{
-	signed long old, new, tmp;
-
-	tmp = RWSEM_ACTIVE_WRITE_BIAS;
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	ag	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "m" (tmp)
-		: "cc", "memory");
-
-	return old;
-}
-
-static inline void __down_write(struct rw_semaphore *sem)
-{
-	if (___down_write(sem))
-		rwsem_down_write_failed(sem);
-}
-
-static inline int __down_write_killable(struct rw_semaphore *sem)
-{
-	if (___down_write(sem))
-		if (IS_ERR(rwsem_down_write_failed_killable(sem)))
-			return -EINTR;
-
-	return 0;
-}
-
-/*
- * trylock for writing -- returns 1 if successful, 0 if contention
- */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
-{
-	signed long old;
-
-	asm volatile(
-		"	lg	%0,%1\n"
-		"0:	ltgr	%0,%0\n"
-		"	jnz	1f\n"
-		"	csg	%0,%3,%1\n"
-		"	jl	0b\n"
-		"1:"
-		: "=&d" (old), "=Q" (sem->count)
-		: "Q" (sem->count), "d" (RWSEM_ACTIVE_WRITE_BIAS)
-		: "cc", "memory");
-	return (old == RWSEM_UNLOCKED_VALUE) ? 1 : 0;
-}
-
-/*
- * unlock after reading
- */
-static inline void __up_read(struct rw_semaphore *sem)
-{
-	signed long old, new;
-
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	aghi	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "i" (-RWSEM_ACTIVE_READ_BIAS)
-		: "cc", "memory");
-	if (new < 0)
-		if ((new & RWSEM_ACTIVE_MASK) == 0)
-			rwsem_wake(sem);
-}
-
-/*
- * unlock after writing
- */
-static inline void __up_write(struct rw_semaphore *sem)
-{
-	signed long old, new, tmp;
-
-	tmp = -RWSEM_ACTIVE_WRITE_BIAS;
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	ag	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "m" (tmp)
-		: "cc", "memory");
-	if (new < 0)
-		if ((new & RWSEM_ACTIVE_MASK) == 0)
-			rwsem_wake(sem);
-}
-
-/*
- * downgrade write lock to read lock
- */
-static inline void __downgrade_write(struct rw_semaphore *sem)
-{
-	signed long old, new, tmp;
-
-	tmp = -RWSEM_WAITING_BIAS;
-	asm volatile(
-		"	lg	%0,%2\n"
-		"0:	lgr	%1,%0\n"
-		"	ag	%1,%4\n"
-		"	csg	%0,%1,%2\n"
-		"	jl	0b"
-		: "=&d" (old), "=&d" (new), "=Q" (sem->count)
-		: "Q" (sem->count), "m" (tmp)
-		: "cc", "memory");
-	if (new > 1)
-		rwsem_downgrade_wake(sem);
-}
-
-#endif /* _S390_RWSEM_H */
diff --git a/arch/s390/include/asm/schid.h b/arch/s390/include/asm/schid.h
index 40b47dfa9d66..3ac405a67ff0 100644
--- a/arch/s390/include/asm/schid.h
+++ b/arch/s390/include/asm/schid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_SCHID_H
 #define ASM_SCHID_H
 
diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 6f5167bc1928..d3c1a8a2e3ad 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
diff --git a/arch/s390/include/asm/scsw.h b/arch/s390/include/asm/scsw.h
index 17a7904f001a..79b7ffa91832 100644
--- a/arch/s390/include/asm/scsw.h
+++ b/arch/s390/include/asm/scsw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Helper functions for scsw access.
  *
diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h
index e10f8337367b..795bbe0d7ca6 100644
--- a/arch/s390/include/asm/seccomp.h
+++ b/arch/s390/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_SECCOMP_H
 #define _ASM_S390_SECCOMP_H
 
diff --git a/arch/s390/include/asm/sections.h b/arch/s390/include/asm/sections.h
index fbd9116eb17b..54f81f8ed662 100644
--- a/arch/s390/include/asm/sections.h
+++ b/arch/s390/include/asm/sections.h
@@ -1,8 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S390_SECTIONS_H
 #define _S390_SECTIONS_H
 
 #include <asm-generic/sections.h>
 
-extern char _eshared[], _ehead[];
+extern char _ehead[];
 
 #endif
diff --git a/arch/s390/include/asm/serial.h b/arch/s390/include/asm/serial.h
index 5b3e48ef534b..aaf85a69061c 100644
--- a/arch/s390/include/asm/serial.h
+++ b/arch/s390/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_SERIAL_H
 #define _ASM_S390_SERIAL_H
 
diff --git a/arch/s390/include/asm/set_memory.h b/arch/s390/include/asm/set_memory.h
index 46a4db44c47a..c59a83536c70 100644
--- a/arch/s390/include/asm/set_memory.h
+++ b/arch/s390/include/asm/set_memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMS390_SET_MEMORY_H
 #define _ASMS390_SET_MEMORY_H
 
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 490e035b3716..8bc87dcb10eb 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2010
@@ -97,9 +98,6 @@ extern char vmpoff_cmd[];
 #define SET_CONSOLE_VT220	do { console_mode = 4; } while (0)
 #define SET_CONSOLE_HVC		do { console_mode = 5; } while (0)
 
-#define NSS_NAME_SIZE	8
-extern char kernel_nss_name[];
-
 #ifdef CONFIG_PFAULT
 extern int pfault_init(void);
 extern void pfault_fini(void);
diff --git a/arch/s390/include/asm/shmparam.h b/arch/s390/include/asm/shmparam.h
index e985182738f8..e75d45649c54 100644
--- a/arch/s390/include/asm/shmparam.h
+++ b/arch/s390/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/signal.h b/arch/s390/include/asm/signal.h
index abf9e5735943..7daf4d8b5ee5 100644
--- a/arch/s390/include/asm/signal.h
+++ b/arch/s390/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index 020a8814d511..53ee795cd3d3 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __S390_ASM_SIGP_H
 #define __S390_ASM_SIGP_H
 
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 3deb134587b7..3907ead27ffa 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 1999, 2012
  *    Author(s): Denis Joseph Barrow,
@@ -27,6 +28,7 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
 extern void smp_call_online_cpu(void (*func)(void *), void *);
 extern void smp_call_ipl_cpu(void (*func)(void *), void *);
+extern void smp_emergency_stop(void);
 
 extern int smp_find_processor_id(u16 address);
 extern int smp_store_status(int cpu);
@@ -52,6 +54,10 @@ static inline void smp_call_online_cpu(void (*func)(void *), void *data)
 	func(data);
 }
 
+static inline void smp_emergency_stop(void)
+{
+}
+
 static inline int smp_find_processor_id(u16 address) { return 0; }
 static inline int smp_store_status(int cpu) { return 0; }
 static inline int smp_vcpu_scheduled(int cpu) { return 1; }
diff --git a/arch/s390/include/asm/sparsemem.h b/arch/s390/include/asm/sparsemem.h
index 334e279f1bce..c549893602ea 100644
--- a/arch/s390/include/asm/sparsemem.h
+++ b/arch/s390/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_SPARSEMEM_H
 #define _ASM_S390_SPARSEMEM_H
 
diff --git a/arch/s390/include/asm/spinlock.h b/arch/s390/include/asm/spinlock.h
index 8182b521c42f..0a29588aa00b 100644
--- a/arch/s390/include/asm/spinlock.h
+++ b/arch/s390/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
@@ -13,6 +14,7 @@
 #include <asm/atomic_ops.h>
 #include <asm/barrier.h>
 #include <asm/processor.h>
+#include <asm/alternative.h>
 
 #define SPINLOCK_LOCKVAL (S390_lowcore.spinlock_lockval)
 
@@ -35,20 +37,16 @@ bool arch_vcpu_is_preempted(int cpu);
  * (the type definitions are in asm/spinlock_types.h)
  */
 
-void arch_lock_relax(int cpu);
+void arch_spin_relax(arch_spinlock_t *lock);
+#define arch_spin_relax	arch_spin_relax
 
 void arch_spin_lock_wait(arch_spinlock_t *);
 int arch_spin_trylock_retry(arch_spinlock_t *);
-void arch_spin_lock_wait_flags(arch_spinlock_t *, unsigned long flags);
-
-static inline void arch_spin_relax(arch_spinlock_t *lock)
-{
-	arch_lock_relax(lock->lock);
-}
+void arch_spin_lock_setup(int cpu);
 
 static inline u32 arch_spin_lockval(int cpu)
 {
-	return ~cpu;
+	return cpu + 1;
 }
 
 static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
@@ -64,8 +62,7 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lp)
 static inline int arch_spin_trylock_once(arch_spinlock_t *lp)
 {
 	barrier();
-	return likely(arch_spin_value_unlocked(*lp) &&
-		      __atomic_cmpxchg_bool(&lp->lock, 0, SPINLOCK_LOCKVAL));
+	return likely(__atomic_cmpxchg_bool(&lp->lock, 0, SPINLOCK_LOCKVAL));
 }
 
 static inline void arch_spin_lock(arch_spinlock_t *lp)
@@ -78,8 +75,9 @@ static inline void arch_spin_lock_flags(arch_spinlock_t *lp,
 					unsigned long flags)
 {
 	if (!arch_spin_trylock_once(lp))
-		arch_spin_lock_wait_flags(lp, flags);
+		arch_spin_lock_wait(lp);
 }
+#define arch_spin_lock_flags	arch_spin_lock_flags
 
 static inline int arch_spin_trylock(arch_spinlock_t *lp)
 {
@@ -92,11 +90,10 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
 {
 	typecheck(int, lp->lock);
 	asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
-		"	.long	0xb2fa0070\n"	/* NIAI 7 */
-#endif
-		"	st	%1,%0\n"
-		: "=Q" (lp->lock) : "d" (0) : "cc", "memory");
+		ALTERNATIVE("", ".long 0xb2fa0070", 49)	/* NIAI 7 */
+		"	sth	%1,%0\n"
+		: "=Q" (((unsigned short *) &lp->lock)[1])
+		: "d" (0) : "cc", "memory");
 }
 
 /*
@@ -110,168 +107,53 @@ static inline void arch_spin_unlock(arch_spinlock_t *lp)
  * read-locks.
  */
 
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(x) ((int)(x)->lock >= 0)
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(x) ((x)->lock == 0)
-
-extern int _raw_read_trylock_retry(arch_rwlock_t *lp);
-extern int _raw_write_trylock_retry(arch_rwlock_t *lp);
-
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-static inline int arch_read_trylock_once(arch_rwlock_t *rw)
-{
-	int old = ACCESS_ONCE(rw->lock);
-	return likely(old >= 0 &&
-		      __atomic_cmpxchg_bool(&rw->lock, old, old + 1));
-}
-
-static inline int arch_write_trylock_once(arch_rwlock_t *rw)
-{
-	int old = ACCESS_ONCE(rw->lock);
-	return likely(old == 0 &&
-		      __atomic_cmpxchg_bool(&rw->lock, 0, 0x80000000));
-}
-
-#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
-
-#define __RAW_OP_OR	"lao"
-#define __RAW_OP_AND	"lan"
-#define __RAW_OP_ADD	"laa"
-
-#define __RAW_LOCK(ptr, op_val, op_string)		\
-({							\
-	int old_val;					\
-							\
-	typecheck(int *, ptr);				\
-	asm volatile(					\
-		op_string "	%0,%2,%1\n"		\
-		"bcr	14,0\n"				\
-		: "=d" (old_val), "+Q" (*ptr)		\
-		: "d" (op_val)				\
-		: "cc", "memory");			\
-	old_val;					\
-})
-
-#define __RAW_UNLOCK(ptr, op_val, op_string)		\
-({							\
-	int old_val;					\
-							\
-	typecheck(int *, ptr);				\
-	asm volatile(					\
-		op_string "	%0,%2,%1\n"		\
-		: "=d" (old_val), "+Q" (*ptr)		\
-		: "d" (op_val)				\
-		: "cc", "memory");			\
-	old_val;					\
-})
+#define arch_read_relax(rw) barrier()
+#define arch_write_relax(rw) barrier()
 
-extern void _raw_read_lock_wait(arch_rwlock_t *lp);
-extern void _raw_write_lock_wait(arch_rwlock_t *lp, int prev);
+void arch_read_lock_wait(arch_rwlock_t *lp);
+void arch_write_lock_wait(arch_rwlock_t *lp);
 
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	int old;
 
-	old = __RAW_LOCK(&rw->lock, 1, __RAW_OP_ADD);
-	if (old < 0)
-		_raw_read_lock_wait(rw);
+	old = __atomic_add(1, &rw->cnts);
+	if (old & 0xffff0000)
+		arch_read_lock_wait(rw);
 }
 
 static inline void arch_read_unlock(arch_rwlock_t *rw)
 {
-	__RAW_UNLOCK(&rw->lock, -1, __RAW_OP_ADD);
+	__atomic_add_const_barrier(-1, &rw->cnts);
 }
 
 static inline void arch_write_lock(arch_rwlock_t *rw)
 {
-	int old;
-
-	old = __RAW_LOCK(&rw->lock, 0x80000000, __RAW_OP_OR);
-	if (old != 0)
-		_raw_write_lock_wait(rw, old);
-	rw->owner = SPINLOCK_LOCKVAL;
+	if (!__atomic_cmpxchg_bool(&rw->cnts, 0, 0x30000))
+		arch_write_lock_wait(rw);
 }
 
 static inline void arch_write_unlock(arch_rwlock_t *rw)
 {
-	rw->owner = 0;
-	__RAW_UNLOCK(&rw->lock, 0x7fffffff, __RAW_OP_AND);
+	__atomic_add_barrier(-0x30000, &rw->cnts);
 }
 
-#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
-
-extern void _raw_read_lock_wait(arch_rwlock_t *lp);
-extern void _raw_write_lock_wait(arch_rwlock_t *lp);
-
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
-	if (!arch_read_trylock_once(rw))
-		_raw_read_lock_wait(rw);
-}
 
-static inline void arch_read_unlock(arch_rwlock_t *rw)
+static inline int arch_read_trylock(arch_rwlock_t *rw)
 {
 	int old;
 
-	do {
-		old = ACCESS_ONCE(rw->lock);
-	} while (!__atomic_cmpxchg_bool(&rw->lock, old, old - 1));
-}
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
-	if (!arch_write_trylock_once(rw))
-		_raw_write_lock_wait(rw);
-	rw->owner = SPINLOCK_LOCKVAL;
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
-	typecheck(int, rw->lock);
-
-	rw->owner = 0;
-	asm volatile(
-		"st	%1,%0\n"
-		: "+Q" (rw->lock)
-		: "d" (0)
-		: "cc", "memory");
-}
-
-#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
-
-static inline int arch_read_trylock(arch_rwlock_t *rw)
-{
-	if (!arch_read_trylock_once(rw))
-		return _raw_read_trylock_retry(rw);
-	return 1;
+	old = READ_ONCE(rw->cnts);
+	return (!(old & 0xffff0000) &&
+		__atomic_cmpxchg_bool(&rw->cnts, old, old + 1));
 }
 
 static inline int arch_write_trylock(arch_rwlock_t *rw)
 {
-	if (!arch_write_trylock_once(rw) && !_raw_write_trylock_retry(rw))
-		return 0;
-	rw->owner = SPINLOCK_LOCKVAL;
-	return 1;
-}
-
-static inline void arch_read_relax(arch_rwlock_t *rw)
-{
-	arch_lock_relax(rw->owner);
-}
+	int old;
 
-static inline void arch_write_relax(arch_rwlock_t *rw)
-{
-	arch_lock_relax(rw->owner);
+	old = READ_ONCE(rw->cnts);
+	return !old && __atomic_cmpxchg_bool(&rw->cnts, 0, 0x30000);
 }
 
 #endif /* __ASM_SPINLOCK_H */
diff --git a/arch/s390/include/asm/spinlock_types.h b/arch/s390/include/asm/spinlock_types.h
index fe755eec275f..cfed272e4fd5 100644
--- a/arch/s390/include/asm/spinlock_types.h
+++ b/arch/s390/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_TYPES_H
 #define __ASM_SPINLOCK_TYPES_H
 
@@ -12,8 +13,8 @@ typedef struct {
 #define __ARCH_SPIN_LOCK_UNLOCKED { .lock = 0, }
 
 typedef struct {
-	int lock;
-	int owner;
+	int cnts;
+	arch_spinlock_t wait;
 } arch_rwlock_t;
 
 #define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
diff --git a/arch/s390/include/asm/stp.h b/arch/s390/include/asm/stp.h
index 7689727585b2..f0ddefb06ec8 100644
--- a/arch/s390/include/asm/stp.h
+++ b/arch/s390/include/asm/stp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2006
  *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h
index e5f5c7074f2c..50f26fc9acb2 100644
--- a/arch/s390/include/asm/string.h
+++ b/arch/s390/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
@@ -17,6 +18,9 @@
 #define __HAVE_ARCH_MEMMOVE	/* gcc builtin & arch function */
 #define __HAVE_ARCH_MEMSCAN	/* inline & arch function */
 #define __HAVE_ARCH_MEMSET	/* gcc builtin & arch function */
+#define __HAVE_ARCH_MEMSET16	/* arch function */
+#define __HAVE_ARCH_MEMSET32	/* arch function */
+#define __HAVE_ARCH_MEMSET64	/* arch function */
 #define __HAVE_ARCH_STRCAT	/* inline & arch function */
 #define __HAVE_ARCH_STRCMP	/* arch function */
 #define __HAVE_ARCH_STRCPY	/* inline & arch function */
@@ -30,17 +34,17 @@
 #define __HAVE_ARCH_STRSTR	/* arch function */
 
 /* Prototypes for non-inlined arch strings functions. */
-extern int memcmp(const void *, const void *, size_t);
-extern void *memcpy(void *, const void *, size_t);
-extern void *memset(void *, int, size_t);
-extern void *memmove(void *, const void *, size_t);
-extern int strcmp(const char *,const char *);
-extern size_t strlcat(char *, const char *, size_t);
-extern size_t strlcpy(char *, const char *, size_t);
-extern char *strncat(char *, const char *, size_t);
-extern char *strncpy(char *, const char *, size_t);
-extern char *strrchr(const char *, int);
-extern char *strstr(const char *, const char *);
+int memcmp(const void *s1, const void *s2, size_t n);
+void *memcpy(void *dest, const void *src, size_t n);
+void *memset(void *s, int c, size_t n);
+void *memmove(void *dest, const void *src, size_t n);
+int strcmp(const char *s1, const char *s2);
+size_t strlcat(char *dest, const char *src, size_t n);
+size_t strlcpy(char *dest, const char *src, size_t size);
+char *strncat(char *dest, const char *src, size_t n);
+char *strncpy(char *dest, const char *src, size_t n);
+char *strrchr(const char *s, int c);
+char *strstr(const char *s1, const char *s2);
 
 #undef __HAVE_ARCH_STRCHR
 #undef __HAVE_ARCH_STRNCHR
@@ -49,7 +53,26 @@ extern char *strstr(const char *, const char *);
 #undef __HAVE_ARCH_STRSEP
 #undef __HAVE_ARCH_STRSPN
 
-#if !defined(IN_ARCH_STRING_C)
+void *__memset16(uint16_t *s, uint16_t v, size_t count);
+void *__memset32(uint32_t *s, uint32_t v, size_t count);
+void *__memset64(uint64_t *s, uint64_t v, size_t count);
+
+static inline void *memset16(uint16_t *s, uint16_t v, size_t count)
+{
+	return __memset16(s, v, count * sizeof(v));
+}
+
+static inline void *memset32(uint32_t *s, uint32_t v, size_t count)
+{
+	return __memset32(s, v, count * sizeof(v));
+}
+
+static inline void *memset64(uint64_t *s, uint64_t v, size_t count)
+{
+	return __memset64(s, v, count * sizeof(v));
+}
+
+#if !defined(IN_ARCH_STRING_C) && (!defined(CONFIG_FORTIFY_SOURCE) || defined(__NO_FORTIFY))
 
 static inline void *memchr(const void * s, int c, size_t n)
 {
diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index f6c2b5814ab0..ec7b476c1ac5 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2009
  *
@@ -36,8 +37,8 @@ static inline void restore_access_regs(unsigned int *acrs)
 		save_ri_cb(prev->thread.ri_cb);				\
 		save_gs_cb(prev->thread.gs_cb);				\
 	}								\
+	update_cr_regs(next);						\
 	if (next->mm) {							\
-		update_cr_regs(next);					\
 		set_cpu_flag(CIF_FPU);					\
 		restore_access_regs(&next->thread.acrs[0]);		\
 		restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb);	\
diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index 2b498e58b914..a702cb9d4269 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -156,7 +156,8 @@ static inline unsigned char topology_mnest_limit(void)
 struct topology_core {
 	unsigned char nl;
 	unsigned char reserved0[3];
-	unsigned char :6;
+	unsigned char :5;
+	unsigned char d:1;
 	unsigned char pp:2;
 	unsigned char reserved1;
 	unsigned short origin;
@@ -198,4 +199,5 @@ struct service_level {
 int register_service_level(struct service_level *);
 int unregister_service_level(struct service_level *);
 
+int sthyi_fill(void *dst, u64 *rc);
 #endif /* __ASM_S390_SYSINFO_H */
diff --git a/arch/s390/include/asm/termios.h b/arch/s390/include/asm/termios.h
index db028d17f061..46fa3020b41e 100644
--- a/arch/s390/include/asm/termios.h
+++ b/arch/s390/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index 1aecf432c48d..0880a37b6d3b 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 2002, 2006
diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 93f2eb3f277c..64539c221672 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index 3a14b864b2e3..457b7ba0fbb6 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S390_TLB_H
 #define _S390_TLB_H
 
diff --git a/arch/s390/include/asm/tlbflush.h b/arch/s390/include/asm/tlbflush.h
index b08d5bc2666e..8c840f0904f3 100644
--- a/arch/s390/include/asm/tlbflush.h
+++ b/arch/s390/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S390_TLBFLUSH_H
 #define _S390_TLBFLUSH_H
 
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 5222da162b69..1807229b292f 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390_TOPOLOGY_H
 #define _ASM_S390_TOPOLOGY_H
 
@@ -16,6 +17,7 @@ struct cpu_topology_s390 {
 	unsigned short book_id;
 	unsigned short drawer_id;
 	unsigned short node_id;
+	unsigned short dedicated : 1;
 	cpumask_t thread_mask;
 	cpumask_t core_mask;
 	cpumask_t book_mask;
@@ -34,6 +36,7 @@ extern cpumask_t cpus_with_topology;
 #define topology_book_cpumask(cpu)	  (&cpu_topology[cpu].book_mask)
 #define topology_drawer_id(cpu)		  (cpu_topology[cpu].drawer_id)
 #define topology_drawer_cpumask(cpu)	  (&cpu_topology[cpu].drawer_mask)
+#define topology_cpu_dedicated(cpu)	  (cpu_topology[cpu].dedicated)
 
 #define mc_capable() 1
 
diff --git a/arch/s390/include/asm/trace/diag.h b/arch/s390/include/asm/trace/diag.h
index cc6cfe7889da..22fcac4ff9f0 100644
--- a/arch/s390/include/asm/trace/diag.h
+++ b/arch/s390/include/asm/trace/diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Tracepoint header for s390 diagnose calls
  *
diff --git a/arch/s390/include/asm/trace/zcrypt.h b/arch/s390/include/asm/trace/zcrypt.h
index adcb77fafa9d..457ddaa99e19 100644
--- a/arch/s390/include/asm/trace/zcrypt.h
+++ b/arch/s390/include/asm/trace/zcrypt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Tracepoint definitions for the s390 zcrypt device driver
  *
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 304cfe44df50..cdd0f0d999e2 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 3066031a73fe..7807093b73be 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/uprobes.h b/arch/s390/include/asm/uprobes.h
index 658393c65d7e..b60b3c7ef699 100644
--- a/arch/s390/include/asm/uprobes.h
+++ b/arch/s390/include/asm/uprobes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    User-space Probes (UProbes) for s390
  *
diff --git a/arch/s390/include/asm/user.h b/arch/s390/include/asm/user.h
index 6ed1d1886333..0ca572ced21b 100644
--- a/arch/s390/include/asm/user.h
+++ b/arch/s390/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index 88bdc477a843..ae6261ef97d5 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __S390_VDSO_H__
 #define __S390_VDSO_H__
 
@@ -46,6 +47,7 @@ struct vdso_per_cpu_data {
 
 extern struct vdso_data *vdso_data;
 
+void vdso_alloc_boot_cpu(struct lowcore *lowcore);
 int vdso_alloc_per_cpu(struct lowcore *lowcore);
 void vdso_free_per_cpu(struct lowcore *lowcore);
 
diff --git a/arch/s390/include/asm/vtime.h b/arch/s390/include/asm/vtime.h
index af9896c53eb3..3622d4ebc73a 100644
--- a/arch/s390/include/asm/vtime.h
+++ b/arch/s390/include/asm/vtime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S390_VTIME_H
 #define _S390_VTIME_H
 
diff --git a/arch/s390/include/asm/vtimer.h b/arch/s390/include/asm/vtimer.h
index 10a179af62d8..42f707d1c1e8 100644
--- a/arch/s390/include/asm/vtimer.h
+++ b/arch/s390/include/asm/vtimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2003, 2012
  *  Virtual CPU timer
diff --git a/arch/s390/include/asm/vx-insn.h b/arch/s390/include/asm/vx-insn.h
index 49c24a2afce0..266a72320e05 100644
--- a/arch/s390/include/asm/vx-insn.h
+++ b/arch/s390/include/asm/vx-insn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Support for Vector Instructions
  *
diff --git a/arch/s390/include/asm/xor.h b/arch/s390/include/asm/xor.h
index c988df744a70..857d6759b67f 100644
--- a/arch/s390/include/asm/xor.h
+++ b/arch/s390/include/asm/xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Optimited xor routines
  *
diff --git a/arch/s390/include/uapi/asm/auxvec.h b/arch/s390/include/uapi/asm/auxvec.h
index c53e08442255..a056c4637ffc 100644
--- a/arch/s390/include/uapi/asm/auxvec.h
+++ b/arch/s390/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASMS390_AUXVEC_H
 #define __ASMS390_AUXVEC_H
 
diff --git a/arch/s390/include/uapi/asm/bitsperlong.h b/arch/s390/include/uapi/asm/bitsperlong.h
index 6b235aea9c66..cceaf47b021a 100644
--- a/arch/s390/include/uapi/asm/bitsperlong.h
+++ b/arch/s390/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_S390_BITSPERLONG_H
 #define __ASM_S390_BITSPERLONG_H
 
diff --git a/arch/s390/include/uapi/asm/byteorder.h b/arch/s390/include/uapi/asm/byteorder.h
index a332e59e26fc..1442b57dd91b 100644
--- a/arch/s390/include/uapi/asm/byteorder.h
+++ b/arch/s390/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _S390_BYTEORDER_H
 #define _S390_BYTEORDER_H
 
diff --git a/arch/s390/include/uapi/asm/chpid.h b/arch/s390/include/uapi/asm/chpid.h
index 6b4fb29cc197..2ae2ed8c0963 100644
--- a/arch/s390/include/uapi/asm/chpid.h
+++ b/arch/s390/include/uapi/asm/chpid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *    Copyright IBM Corp. 2007, 2012
  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
diff --git a/arch/s390/include/uapi/asm/chsc.h b/arch/s390/include/uapi/asm/chsc.h
index 65dc694725a8..dc329aa03f76 100644
--- a/arch/s390/include/uapi/asm/chsc.h
+++ b/arch/s390/include/uapi/asm/chsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ioctl interface for /dev/chsc
  *
diff --git a/arch/s390/include/uapi/asm/clp.h b/arch/s390/include/uapi/asm/clp.h
index ab72d9d24373..b36d9e9cdde6 100644
--- a/arch/s390/include/uapi/asm/clp.h
+++ b/arch/s390/include/uapi/asm/clp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ioctl interface for /dev/clp
  *
diff --git a/arch/s390/include/uapi/asm/cmb.h b/arch/s390/include/uapi/asm/cmb.h
index 0c086d00d89e..ecbe94941403 100644
--- a/arch/s390/include/uapi/asm/cmb.h
+++ b/arch/s390/include/uapi/asm/cmb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPIS390_CMB_H
 #define _UAPIS390_CMB_H
 
diff --git a/arch/s390/include/uapi/asm/dasd.h b/arch/s390/include/uapi/asm/dasd.h
index ab5797cdc1b7..451c601406b6 100644
--- a/arch/s390/include/uapi/asm/dasd.h
+++ b/arch/s390/include/uapi/asm/dasd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* 
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
diff --git a/arch/s390/include/uapi/asm/debug.h b/arch/s390/include/uapi/asm/debug.h
index c59fc79125f2..c7c564d9aea4 100644
--- a/arch/s390/include/uapi/asm/debug.h
+++ b/arch/s390/include/uapi/asm/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *   S/390 debug facility
  *
diff --git a/arch/s390/include/uapi/asm/guarded_storage.h b/arch/s390/include/uapi/asm/guarded_storage.h
index 852850e8e17e..666af1c33b59 100644
--- a/arch/s390/include/uapi/asm/guarded_storage.h
+++ b/arch/s390/include/uapi/asm/guarded_storage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _GUARDED_STORAGE_H
 #define _GUARDED_STORAGE_H
 
diff --git a/arch/s390/include/uapi/asm/hypfs.h b/arch/s390/include/uapi/asm/hypfs.h
index b3fe12d8dd87..fe6174e142cf 100644
--- a/arch/s390/include/uapi/asm/hypfs.h
+++ b/arch/s390/include/uapi/asm/hypfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Structures for hypfs interface
  *
diff --git a/arch/s390/include/uapi/asm/ioctls.h b/arch/s390/include/uapi/asm/ioctls.h
index 960a4c1ebdf1..342a3284e69a 100644
--- a/arch/s390/include/uapi/asm/ioctls.h
+++ b/arch/s390/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ARCH_S390_IOCTLS_H__
 #define __ARCH_S390_IOCTLS_H__
 
diff --git a/arch/s390/include/uapi/asm/ipcbuf.h b/arch/s390/include/uapi/asm/ipcbuf.h
index 37f293d12c8f..5b1c4f47c656 100644
--- a/arch/s390/include/uapi/asm/ipcbuf.h
+++ b/arch/s390/include/uapi/asm/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __S390_IPCBUF_H__
 #define __S390_IPCBUF_H__
 
diff --git a/arch/s390/include/uapi/asm/kvm.h b/arch/s390/include/uapi/asm/kvm.h
index cd7359e23d86..9ad172dcd912 100644
--- a/arch/s390/include/uapi/asm/kvm.h
+++ b/arch/s390/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_KVM_S390_H
 #define __LINUX_KVM_S390_H
 /*
diff --git a/arch/s390/include/uapi/asm/kvm_para.h b/arch/s390/include/uapi/asm/kvm_para.h
index ff1f4e7b3015..0dc86b3a7cb0 100644
--- a/arch/s390/include/uapi/asm/kvm_para.h
+++ b/arch/s390/include/uapi/asm/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * User API definitions for paravirtual devices on s390
  *
diff --git a/arch/s390/include/uapi/asm/kvm_perf.h b/arch/s390/include/uapi/asm/kvm_perf.h
index 397282727e21..c36c97ffdc6f 100644
--- a/arch/s390/include/uapi/asm/kvm_perf.h
+++ b/arch/s390/include/uapi/asm/kvm_perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for perf-kvm on s390
  *
diff --git a/arch/s390/include/uapi/asm/kvm_virtio.h b/arch/s390/include/uapi/asm/kvm_virtio.h
deleted file mode 100644
index 44a438ca9e72..000000000000
--- a/arch/s390/include/uapi/asm/kvm_virtio.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * definition for virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- */
-
-#ifndef __KVM_S390_VIRTIO_H
-#define __KVM_S390_VIRTIO_H
-
-#include <linux/types.h>
-
-struct kvm_device_desc {
-	/* The device type: console, network, disk etc.  Type 0 terminates. */
-	__u8 type;
-	/* The number of virtqueues (first in config array) */
-	__u8 num_vq;
-	/*
-	 * The number of bytes of feature bits.  Multiply by 2: one for host
-	 * features and one for guest acknowledgements.
-	 */
-	__u8 feature_len;
-	/* The number of bytes of the config array after virtqueues. */
-	__u8 config_len;
-	/* A status byte, written by the Guest. */
-	__u8 status;
-	__u8 config[0];
-};
-
-/*
- * This is how we expect the device configuration field for a virtqueue
- * to be laid out in config space.
- */
-struct kvm_vqconfig {
-	/* The token returned with an interrupt. Set by the guest */
-	__u64 token;
-	/* The address of the virtio ring */
-	__u64 address;
-	/* The number of entries in the virtio_ring */
-	__u16 num;
-
-};
-
-#define KVM_S390_VIRTIO_NOTIFY		0
-#define KVM_S390_VIRTIO_RESET		1
-#define KVM_S390_VIRTIO_SET_STATUS	2
-
-/* The alignment to use between consumer and producer parts of vring.
- * This is pagesize for historical reasons. */
-#define KVM_S390_VIRTIO_RING_ALIGN	4096
-
-
-/* These values are supposed to be in ext_params on an interrupt */
-#define VIRTIO_PARAM_MASK		0xff
-#define VIRTIO_PARAM_VRING_INTERRUPT	0x0
-#define VIRTIO_PARAM_CONFIG_CHANGED	0x1
-#define VIRTIO_PARAM_DEV_ADD		0x2
-
-#endif
diff --git a/arch/s390/include/uapi/asm/monwriter.h b/arch/s390/include/uapi/asm/monwriter.h
index f845c8e2f861..03d172f314a3 100644
--- a/arch/s390/include/uapi/asm/monwriter.h
+++ b/arch/s390/include/uapi/asm/monwriter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright IBM Corp. 2006
  * Character device driver for writing z/VM APPLDATA monitor records
diff --git a/arch/s390/include/uapi/asm/msgbuf.h b/arch/s390/include/uapi/asm/msgbuf.h
index 1bbdee927924..604f847cd68c 100644
--- a/arch/s390/include/uapi/asm/msgbuf.h
+++ b/arch/s390/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _S390_MSGBUF_H
 #define _S390_MSGBUF_H
 
diff --git a/arch/s390/include/uapi/asm/pkey.h b/arch/s390/include/uapi/asm/pkey.h
index e6c04faf8a6c..6f84a53c3270 100644
--- a/arch/s390/include/uapi/asm/pkey.h
+++ b/arch/s390/include/uapi/asm/pkey.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Userspace interface to the pkey device driver
  *
diff --git a/arch/s390/include/uapi/asm/posix_types.h b/arch/s390/include/uapi/asm/posix_types.h
index bf2a2ad2f800..2a3fc638414b 100644
--- a/arch/s390/include/uapi/asm/posix_types.h
+++ b/arch/s390/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index 77630c74f13b..0d23c8ff2900 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/include/uapi/asm/qeth.h b/arch/s390/include/uapi/asm/qeth.h
index 3a896cf52589..fac9995dfe33 100644
--- a/arch/s390/include/uapi/asm/qeth.h
+++ b/arch/s390/include/uapi/asm/qeth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ioctl definitions for qeth driver
  *
diff --git a/arch/s390/include/uapi/asm/schid.h b/arch/s390/include/uapi/asm/schid.h
index 32f3ab2a8200..58fca6f48410 100644
--- a/arch/s390/include/uapi/asm/schid.h
+++ b/arch/s390/include/uapi/asm/schid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPIASM_SCHID_H
 #define _UAPIASM_SCHID_H
 
diff --git a/arch/s390/include/uapi/asm/sclp_ctl.h b/arch/s390/include/uapi/asm/sclp_ctl.h
index f2818613ee41..e4e8c4dcd126 100644
--- a/arch/s390/include/uapi/asm/sclp_ctl.h
+++ b/arch/s390/include/uapi/asm/sclp_ctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * IOCTL interface for SCLP
  *
diff --git a/arch/s390/include/uapi/asm/sembuf.h b/arch/s390/include/uapi/asm/sembuf.h
index 32626b0cac4b..3e917697b668 100644
--- a/arch/s390/include/uapi/asm/sembuf.h
+++ b/arch/s390/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _S390_SEMBUF_H
 #define _S390_SEMBUF_H
 
diff --git a/arch/s390/include/uapi/asm/setup.h b/arch/s390/include/uapi/asm/setup.h
index 5a637e3e385e..1f8803a31079 100644
--- a/arch/s390/include/uapi/asm/setup.h
+++ b/arch/s390/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2010
diff --git a/arch/s390/include/uapi/asm/shmbuf.h b/arch/s390/include/uapi/asm/shmbuf.h
index eed2e280ce37..9cdce8d7ce60 100644
--- a/arch/s390/include/uapi/asm/shmbuf.h
+++ b/arch/s390/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _S390_SHMBUF_H
 #define _S390_SHMBUF_H
 
diff --git a/arch/s390/include/uapi/asm/sie.h b/arch/s390/include/uapi/asm/sie.h
index 3ac634368939..6ca1e68d7103 100644
--- a/arch/s390/include/uapi/asm/sie.h
+++ b/arch/s390/include/uapi/asm/sie.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_S390_SIE_H
 #define _UAPI_ASM_S390_SIE_H
 
diff --git a/arch/s390/include/uapi/asm/sigcontext.h b/arch/s390/include/uapi/asm/sigcontext.h
index 5f0b8d7ddb0b..8b35033334c4 100644
--- a/arch/s390/include/uapi/asm/sigcontext.h
+++ b/arch/s390/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/include/uapi/asm/siginfo.h b/arch/s390/include/uapi/asm/siginfo.h
index 91fd3e4b70ce..6984820f2f1c 100644
--- a/arch/s390/include/uapi/asm/siginfo.h
+++ b/arch/s390/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h
index 2f43cfbf5f1a..c57f9d28d894 100644
--- a/arch/s390/include/uapi/asm/signal.h
+++ b/arch/s390/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h
index a56916c83565..3510c0fd06f4 100644
--- a/arch/s390/include/uapi/asm/socket.h
+++ b/arch/s390/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/stat.h b/arch/s390/include/uapi/asm/stat.h
index b4ca97d91466..ac253d23606b 100644
--- a/arch/s390/include/uapi/asm/stat.h
+++ b/arch/s390/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/statfs.h b/arch/s390/include/uapi/asm/statfs.h
index 471eb09184d4..72604f7792c3 100644
--- a/arch/s390/include/uapi/asm/statfs.h
+++ b/arch/s390/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/sthyi.h b/arch/s390/include/uapi/asm/sthyi.h
new file mode 100644
index 000000000000..ec113db4eb7e
--- /dev/null
+++ b/arch/s390/include/uapi/asm/sthyi.h
@@ -0,0 +1,6 @@
+#ifndef _UAPI_ASM_STHYI_H
+#define _UAPI_ASM_STHYI_H
+
+#define STHYI_FC_CP_IFL_CAP	0
+
+#endif /* _UAPI_ASM_STHYI_H */
diff --git a/arch/s390/include/uapi/asm/tape390.h b/arch/s390/include/uapi/asm/tape390.h
index b2bc4bab7929..90266c696486 100644
--- a/arch/s390/include/uapi/asm/tape390.h
+++ b/arch/s390/include/uapi/asm/tape390.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*************************************************************************
  *
  *	   enables user programs to display messages and control encryption
diff --git a/arch/s390/include/uapi/asm/termios.h b/arch/s390/include/uapi/asm/termios.h
index 554f973db1e6..54223169c806 100644
--- a/arch/s390/include/uapi/asm/termios.h
+++ b/arch/s390/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/types.h b/arch/s390/include/uapi/asm/types.h
index 3c3951e3415b..da034c606314 100644
--- a/arch/s390/include/uapi/asm/types.h
+++ b/arch/s390/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/ucontext.h b/arch/s390/include/uapi/asm/ucontext.h
index 64a69aa5dde0..c95f42e85337 100644
--- a/arch/s390/include/uapi/asm/ucontext.h
+++ b/arch/s390/include/uapi/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index ea42290e7d51..725120939051 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  S390 version
  *
@@ -315,7 +316,8 @@
 #define __NR_pwritev2		377
 #define __NR_s390_guarded_storage	378
 #define __NR_statx		379
-#define NR_syscalls 380
+#define __NR_s390_sthyi		380
+#define NR_syscalls 381
 
 /* 
  * There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/include/uapi/asm/virtio-ccw.h b/arch/s390/include/uapi/asm/virtio-ccw.h
index a9a4ebf79fa7..967aad390105 100644
--- a/arch/s390/include/uapi/asm/virtio-ccw.h
+++ b/arch/s390/include/uapi/asm/virtio-ccw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for virtio-ccw devices.
  *
diff --git a/arch/s390/include/uapi/asm/vtoc.h b/arch/s390/include/uapi/asm/vtoc.h
index 221419de275e..50c1d7b9e844 100644
--- a/arch/s390/include/uapi/asm/vtoc.h
+++ b/arch/s390/include/uapi/asm/vtoc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file contains volume label definitions for DASD devices.
  *
diff --git a/arch/s390/include/uapi/asm/zcrypt.h b/arch/s390/include/uapi/asm/zcrypt.h
index a777f87ef889..137ef473584e 100644
--- a/arch/s390/include/uapi/asm/zcrypt.h
+++ b/arch/s390/include/uapi/asm/zcrypt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  include/asm-s390/zcrypt.h
  *
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index adb3fe2e3d42..83bc82001c06 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
@@ -33,6 +34,8 @@ AFLAGS_REMOVE_head.o	+= $(CC_FLAGS_MARCH)
 AFLAGS_head.o		+= -march=z900
 endif
 
+CFLAGS_als.o		+= -D__NO_FORTIFY
+
 #
 # Passing null pointers is ok for smp code, since we access the lowcore here.
 #
@@ -55,7 +58,7 @@ obj-y	:= traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
 obj-y	+= processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
 obj-y	+= debug.o irq.o ipl.o dis.o diag.o vdso.o als.o
 obj-y	+= sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
-obj-y	+= runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o
+obj-y	+= runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o sthyi.o
 obj-y	+= entry.o reipl.o relocate_kernel.o kdebugfs.o
 
 extra-y				+= head.o head64.o vmlinux.lds
@@ -74,6 +77,7 @@ obj-$(CONFIG_KPROBES)		+= kprobes.o
 obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_UPROBES)		+= uprobes.o
+obj-$(CONFIG_ALTERNATIVES)	+= alternative.o
 
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_cpum_cf.o perf_cpum_sf.o
 obj-$(CONFIG_PERF_EVENTS)	+= perf_cpum_cf_events.o
diff --git a/arch/s390/kernel/als.c b/arch/s390/kernel/als.c
index 14769eb52a33..d1892bf36cab 100644
--- a/arch/s390/kernel/als.c
+++ b/arch/s390/kernel/als.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2016
  */
diff --git a/arch/s390/kernel/alternative.c b/arch/s390/kernel/alternative.c
new file mode 100644
index 000000000000..315986a06cf5
--- /dev/null
+++ b/arch/s390/kernel/alternative.c
@@ -0,0 +1,110 @@
+#include <linux/module.h>
+#include <asm/alternative.h>
+#include <asm/facility.h>
+
+#define MAX_PATCH_LEN (255 - 1)
+
+static int __initdata_or_module alt_instr_disabled;
+
+static int __init disable_alternative_instructions(char *str)
+{
+	alt_instr_disabled = 1;
+	return 0;
+}
+
+early_param("noaltinstr", disable_alternative_instructions);
+
+struct brcl_insn {
+	u16 opc;
+	s32 disp;
+} __packed;
+
+static u16 __initdata_or_module nop16 = 0x0700;
+static u32 __initdata_or_module nop32 = 0x47000000;
+static struct brcl_insn __initdata_or_module nop48 = {
+	0xc004, 0
+};
+
+static const void *nops[] __initdata_or_module = {
+	&nop16,
+	&nop32,
+	&nop48
+};
+
+static void __init_or_module add_jump_padding(void *insns, unsigned int len)
+{
+	struct brcl_insn brcl = {
+		0xc0f4,
+		len / 2
+	};
+
+	memcpy(insns, &brcl, sizeof(brcl));
+	insns += sizeof(brcl);
+	len -= sizeof(brcl);
+
+	while (len > 0) {
+		memcpy(insns, &nop16, 2);
+		insns += 2;
+		len -= 2;
+	}
+}
+
+static void __init_or_module add_padding(void *insns, unsigned int len)
+{
+	if (len > 6)
+		add_jump_padding(insns, len);
+	else if (len >= 2)
+		memcpy(insns, nops[len / 2 - 1], len);
+}
+
+static void __init_or_module __apply_alternatives(struct alt_instr *start,
+						  struct alt_instr *end)
+{
+	struct alt_instr *a;
+	u8 *instr, *replacement;
+	u8 insnbuf[MAX_PATCH_LEN];
+
+	/*
+	 * The scan order should be from start to end. A later scanned
+	 * alternative code can overwrite previously scanned alternative code.
+	 */
+	for (a = start; a < end; a++) {
+		int insnbuf_sz = 0;
+
+		instr = (u8 *)&a->instr_offset + a->instr_offset;
+		replacement = (u8 *)&a->repl_offset + a->repl_offset;
+
+		if (!test_facility(a->facility))
+			continue;
+
+		if (unlikely(a->instrlen % 2 || a->replacementlen % 2)) {
+			WARN_ONCE(1, "cpu alternatives instructions length is "
+				     "odd, skipping patching\n");
+			continue;
+		}
+
+		memcpy(insnbuf, replacement, a->replacementlen);
+		insnbuf_sz = a->replacementlen;
+
+		if (a->instrlen > a->replacementlen) {
+			add_padding(insnbuf + a->replacementlen,
+				    a->instrlen - a->replacementlen);
+			insnbuf_sz += a->instrlen - a->replacementlen;
+		}
+
+		s390_kernel_write(instr, insnbuf, insnbuf_sz);
+	}
+}
+
+void __init_or_module apply_alternatives(struct alt_instr *start,
+					 struct alt_instr *end)
+{
+	if (!alt_instr_disabled)
+		__apply_alternatives(start, end);
+}
+
+extern struct alt_instr __alt_instructions[], __alt_instructions_end[];
+void __init apply_alternative_instructions(void)
+{
+	apply_alternatives(__alt_instructions, __alt_instructions_end);
+}
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 3d42f91c95fd..33ec80df7ed4 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed to extract
@@ -13,6 +14,7 @@
 #include <asm/vdso.h>
 #include <asm/pgtable.h>
 #include <asm/gmap.h>
+#include <asm/nmi.h>
 
 /*
  * Make sure that the compiler is new enough. We want a compiler that
@@ -158,6 +160,7 @@ int main(void)
 	OFFSET(__LC_LAST_UPDATE_CLOCK, lowcore, last_update_clock);
 	OFFSET(__LC_INT_CLOCK, lowcore, int_clock);
 	OFFSET(__LC_MCCK_CLOCK, lowcore, mcck_clock);
+	OFFSET(__LC_CLOCK_COMPARATOR, lowcore, clock_comparator);
 	OFFSET(__LC_BOOT_CLOCK, lowcore, boot_clock);
 	OFFSET(__LC_CURRENT, lowcore, current_task);
 	OFFSET(__LC_KERNEL_STACK, lowcore, kernel_stack);
@@ -193,6 +196,9 @@ int main(void)
 	OFFSET(__LC_CREGS_SAVE_AREA, lowcore, cregs_save_area);
 	OFFSET(__LC_PGM_TDB, lowcore, pgm_tdb);
 	BLANK();
+	/* extended machine check save area */
+	OFFSET(__MCESA_GS_SAVE_AREA, mcesa, guarded_storage_save_area);
+	BLANK();
 	/* gmap/sie offsets */
 	OFFSET(__GMAP_ASCE, gmap, asce);
 	OFFSET(__SIE_PROG0C, kvm_s390_sie_block, prog0c);
diff --git a/arch/s390/kernel/audit.c b/arch/s390/kernel/audit.c
index f4932c22ebe4..d395c6c9944c 100644
--- a/arch/s390/kernel/audit.c
+++ b/arch/s390/kernel/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/arch/s390/kernel/audit.h b/arch/s390/kernel/audit.h
index 12b56f4b5a73..4d4b596412ec 100644
--- a/arch/s390/kernel/audit.h
+++ b/arch/s390/kernel/audit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_S390_KERNEL_AUDIT_H
 #define __ARCH_S390_KERNEL_AUDIT_H
 
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index 326f717df587..f6c56009e822 100644
--- a/arch/s390/kernel/base.S
+++ b/arch/s390/kernel/base.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  arch/s390/kernel/base.S
  *
diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c
index c8a83276a4dc..d66825e53fce 100644
--- a/arch/s390/kernel/cache.c
+++ b/arch/s390/kernel/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Extract CPU cache information and expose them via sysfs.
  *
diff --git a/arch/s390/kernel/compat_audit.c b/arch/s390/kernel/compat_audit.c
index d6487bf879e5..444fb1f66944 100644
--- a/arch/s390/kernel/compat_audit.c
+++ b/arch/s390/kernel/compat_audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef __s390x__
 #include <asm/unistd.h>
 #include "audit.h"
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index a3d14161abcb..f04db3779b34 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  S390 version
  *    Copyright IBM Corp. 2000
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index a0a886c04977..64509e7dbd3b 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_S390X_S390_H
 #define _ASM_S390X_S390_H
 
diff --git a/arch/s390/kernel/compat_ptrace.h b/arch/s390/kernel/compat_ptrace.h
index 12b823833510..3c400fc7e987 100644
--- a/arch/s390/kernel/compat_ptrace.h
+++ b/arch/s390/kernel/compat_ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PTRACE32_H
 #define _PTRACE32_H
 
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index f549c4657376..a4a1208e3df3 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2000, 2006
  *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c
index 986642a3543b..11e9d8b5c1b0 100644
--- a/arch/s390/kernel/compat_wrapper.c
+++ b/arch/s390/kernel/compat_wrapper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Compat system call wrappers.
  *
@@ -180,3 +181,4 @@ COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);
 COMPAT_SYSCALL_WRAP6(copy_file_range, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags);
 COMPAT_SYSCALL_WRAP2(s390_guarded_storage, int, command, struct gs_cb *, gs_cb);
 COMPAT_SYSCALL_WRAP5(statx, int, dfd, const char __user *, path, unsigned, flags, unsigned, mask, struct statx __user *, buffer);
+COMPAT_SYSCALL_WRAP4(s390_sthyi, unsigned long, code, void __user *, info, u64 __user *, rc, unsigned long, flags);
diff --git a/arch/s390/kernel/cpcmd.c b/arch/s390/kernel/cpcmd.c
index 63bc6603e0ed..af013b4244d3 100644
--- a/arch/s390/kernel/cpcmd.c
+++ b/arch/s390/kernel/cpcmd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2007
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index d628afc26708..9f5ea9d87069 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * S390 kdump implementation
  *
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 1d9e83c401fc..58b9e127b615 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1,10 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *   S/390 debug facility
  *
  *    Copyright IBM Corp. 1999, 2012
  *
  *    Author(s): Michael Holzheu (holzheu@de.ibm.com),
- *               Holger Smolinski (Holger.Smolinski@de.ibm.com)
+ *		 Holger Smolinski (Holger.Smolinski@de.ibm.com)
  *
  *    Bugreports to: <Linux390@de.ibm.com>
  */
@@ -36,69 +37,67 @@
 
 typedef struct file_private_info {
 	loff_t offset;			/* offset of last read in file */
-	int    act_area;                /* number of last formated area */
-	int    act_page;                /* act page in given area */
-	int    act_entry;               /* last formated entry (offset */
-                                        /* relative to beginning of last */
-                                        /* formated page) */
-	size_t act_entry_offset;        /* up to this offset we copied */
+	int    act_area;		/* number of last formated area */
+	int    act_page;		/* act page in given area */
+	int    act_entry;		/* last formated entry (offset */
+					/* relative to beginning of last */
+					/* formated page) */
+	size_t act_entry_offset;	/* up to this offset we copied */
 					/* in last read the last formated */
 					/* entry to userland */
 	char   temp_buf[2048];		/* buffer for output */
-	debug_info_t *debug_info_org;   /* original debug information */
+	debug_info_t *debug_info_org;	/* original debug information */
 	debug_info_t *debug_info_snap;	/* snapshot of debug information */
 	struct debug_view *view;	/* used view of debug info */
 } file_private_info_t;
 
-typedef struct
-{
+typedef struct {
 	char *string;
-	/* 
-	 * This assumes that all args are converted into longs 
-	 * on L/390 this is the case for all types of parameter 
-	 * except of floats, and long long (32 bit) 
+	/*
+	 * This assumes that all args are converted into longs
+	 * on L/390 this is the case for all types of parameter
+	 * except of floats, and long long (32 bit)
 	 *
 	 */
 	long args[0];
 } debug_sprintf_entry_t;
 
-
 /* internal function prototyes */
 
 static int debug_init(void);
 static ssize_t debug_output(struct file *file, char __user *user_buf,
-			size_t user_len, loff_t * offset);
+			    size_t user_len, loff_t *offset);
 static ssize_t debug_input(struct file *file, const char __user *user_buf,
-			size_t user_len, loff_t * offset);
+			   size_t user_len, loff_t *offset);
 static int debug_open(struct inode *inode, struct file *file);
 static int debug_close(struct inode *inode, struct file *file);
 static debug_info_t *debug_info_create(const char *name, int pages_per_area,
-			int nr_areas, int buf_size, umode_t mode);
+				       int nr_areas, int buf_size, umode_t mode);
 static void debug_info_get(debug_info_t *);
 static void debug_info_put(debug_info_t *);
-static int debug_prolog_level_fn(debug_info_t * id,
-			struct debug_view *view, char *out_buf);
-static int debug_input_level_fn(debug_info_t * id, struct debug_view *view,
-			struct file *file, const char __user *user_buf,
-			size_t user_buf_size, loff_t * offset);
-static int debug_prolog_pages_fn(debug_info_t * id,
-			struct debug_view *view, char *out_buf);
-static int debug_input_pages_fn(debug_info_t * id, struct debug_view *view,
-			struct file *file, const char __user *user_buf,
-			size_t user_buf_size, loff_t * offset);
-static int debug_input_flush_fn(debug_info_t * id, struct debug_view *view,
-			struct file *file, const char __user *user_buf,
-			size_t user_buf_size, loff_t * offset);
-static int debug_hex_ascii_format_fn(debug_info_t * id, struct debug_view *view,
-			char *out_buf, const char *in_buf);
-static int debug_raw_format_fn(debug_info_t * id,
-			struct debug_view *view, char *out_buf,
-			const char *in_buf);
-static int debug_raw_header_fn(debug_info_t * id, struct debug_view *view,
-			int area, debug_entry_t * entry, char *out_buf);
-
-static int debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,
-			char *out_buf, debug_sprintf_entry_t *curr_event);
+static int debug_prolog_level_fn(debug_info_t *id,
+				 struct debug_view *view, char *out_buf);
+static int debug_input_level_fn(debug_info_t *id, struct debug_view *view,
+				struct file *file, const char __user *user_buf,
+				size_t user_buf_size, loff_t *offset);
+static int debug_prolog_pages_fn(debug_info_t *id,
+				 struct debug_view *view, char *out_buf);
+static int debug_input_pages_fn(debug_info_t *id, struct debug_view *view,
+				struct file *file, const char __user *user_buf,
+				size_t user_buf_size, loff_t *offset);
+static int debug_input_flush_fn(debug_info_t *id, struct debug_view *view,
+				struct file *file, const char __user *user_buf,
+				size_t user_buf_size, loff_t *offset);
+static int debug_hex_ascii_format_fn(debug_info_t *id, struct debug_view *view,
+				     char *out_buf, const char *in_buf);
+static int debug_raw_format_fn(debug_info_t *id,
+			       struct debug_view *view, char *out_buf,
+			       const char *in_buf);
+static int debug_raw_header_fn(debug_info_t *id, struct debug_view *view,
+			       int area, debug_entry_t *entry, char *out_buf);
+
+static int debug_sprintf_format_fn(debug_info_t *id, struct debug_view *view,
+				   char *out_buf, debug_sprintf_entry_t *curr_event);
 
 /* globals */
 
@@ -141,19 +140,19 @@ static struct debug_view debug_pages_view = {
 };
 
 static struct debug_view debug_flush_view = {
-        "flush",
-        NULL,
-        NULL,
-        NULL,
-        &debug_input_flush_fn,
-        NULL
+	"flush",
+	NULL,
+	NULL,
+	NULL,
+	&debug_input_flush_fn,
+	NULL
 };
 
 struct debug_view debug_sprintf_view = {
 	"sprintf",
 	NULL,
 	&debug_dflt_header_fn,
-	(debug_format_proc_t*)&debug_sprintf_format_fn,
+	(debug_format_proc_t *)&debug_sprintf_format_fn,
 	NULL,
 	NULL
 };
@@ -164,18 +163,18 @@ static unsigned int __used debug_feature_version = __DEBUG_FEATURE_VERSION;
 
 /* static globals */
 
-static debug_info_t *debug_area_first = NULL;
-static debug_info_t *debug_area_last = NULL;
+static debug_info_t *debug_area_first;
+static debug_info_t *debug_area_last;
 static DEFINE_MUTEX(debug_mutex);
 
 static int initialized;
 static int debug_critical;
 
 static const struct file_operations debug_file_ops = {
-	.owner   = THIS_MODULE,
-	.read    = debug_output,
-	.write   = debug_input,
-	.open    = debug_open,
+	.owner	 = THIS_MODULE,
+	.read	 = debug_output,
+	.write	 = debug_input,
+	.open	 = debug_open,
 	.release = debug_close,
 	.llseek  = no_llseek,
 };
@@ -190,29 +189,23 @@ static struct dentry *debug_debugfs_root_entry;
  *   areas[areanumber][pagenumber][pageoffset]
  */
 
-static debug_entry_t***
-debug_areas_alloc(int pages_per_area, int nr_areas)
+static debug_entry_t ***debug_areas_alloc(int pages_per_area, int nr_areas)
 {
-	debug_entry_t*** areas;
-	int i,j;
+	debug_entry_t ***areas;
+	int i, j;
 
-	areas = kmalloc(nr_areas *
-					sizeof(debug_entry_t**),
-					GFP_KERNEL);
+	areas = kmalloc(nr_areas * sizeof(debug_entry_t **), GFP_KERNEL);
 	if (!areas)
 		goto fail_malloc_areas;
 	for (i = 0; i < nr_areas; i++) {
-		areas[i] = kmalloc(pages_per_area *
-				sizeof(debug_entry_t*),GFP_KERNEL);
-		if (!areas[i]) {
+		areas[i] = kmalloc(pages_per_area * sizeof(debug_entry_t *), GFP_KERNEL);
+		if (!areas[i])
 			goto fail_malloc_areas2;
-		}
-		for(j = 0; j < pages_per_area; j++) {
+		for (j = 0; j < pages_per_area; j++) {
 			areas[i][j] = kzalloc(PAGE_SIZE, GFP_KERNEL);
-			if(!areas[i][j]) {
-				for(j--; j >=0 ; j--) {
+			if (!areas[i][j]) {
+				for (j--; j >= 0 ; j--)
 					kfree(areas[i][j]);
-				}
 				kfree(areas[i]);
 				goto fail_malloc_areas2;
 			}
@@ -221,62 +214,55 @@ debug_areas_alloc(int pages_per_area, int nr_areas)
 	return areas;
 
 fail_malloc_areas2:
-	for(i--; i >= 0; i--){
-		for(j=0; j < pages_per_area;j++){
+	for (i--; i >= 0; i--) {
+		for (j = 0; j < pages_per_area; j++)
 			kfree(areas[i][j]);
-		}
 		kfree(areas[i]);
 	}
 	kfree(areas);
 fail_malloc_areas:
 	return NULL;
-
 }
 
-
 /*
  * debug_info_alloc
  * - alloc new debug-info
  */
-
-static debug_info_t*
-debug_info_alloc(const char *name, int pages_per_area, int nr_areas,
-		 int buf_size, int level, int mode)
+static debug_info_t *debug_info_alloc(const char *name, int pages_per_area,
+				      int nr_areas, int buf_size, int level,
+				      int mode)
 {
-	debug_info_t* rc;
+	debug_info_t *rc;
 
 	/* alloc everything */
-
 	rc = kmalloc(sizeof(debug_info_t), GFP_KERNEL);
-	if(!rc)
+	if (!rc)
 		goto fail_malloc_rc;
 	rc->active_entries = kcalloc(nr_areas, sizeof(int), GFP_KERNEL);
-	if(!rc->active_entries)
+	if (!rc->active_entries)
 		goto fail_malloc_active_entries;
 	rc->active_pages = kcalloc(nr_areas, sizeof(int), GFP_KERNEL);
-	if(!rc->active_pages)
+	if (!rc->active_pages)
 		goto fail_malloc_active_pages;
-	if((mode == ALL_AREAS) && (pages_per_area != 0)){
+	if ((mode == ALL_AREAS) && (pages_per_area != 0)) {
 		rc->areas = debug_areas_alloc(pages_per_area, nr_areas);
-		if(!rc->areas)
+		if (!rc->areas)
 			goto fail_malloc_areas;
 	} else {
 		rc->areas = NULL;
 	}
 
 	/* initialize members */
-
 	spin_lock_init(&rc->lock);
 	rc->pages_per_area = pages_per_area;
-	rc->nr_areas       = nr_areas;
+	rc->nr_areas	   = nr_areas;
 	rc->active_area    = 0;
-	rc->level          = level;
-	rc->buf_size       = buf_size;
-	rc->entry_size     = sizeof(debug_entry_t) + buf_size;
+	rc->level	   = level;
+	rc->buf_size	   = buf_size;
+	rc->entry_size	   = sizeof(debug_entry_t) + buf_size;
 	strlcpy(rc->name, name, sizeof(rc->name));
 	memset(rc->views, 0, DEBUG_MAX_VIEWS * sizeof(struct debug_view *));
-	memset(rc->debugfs_entries, 0 ,DEBUG_MAX_VIEWS *
-		sizeof(struct dentry*));
+	memset(rc->debugfs_entries, 0, DEBUG_MAX_VIEWS * sizeof(struct dentry *));
 	refcount_set(&(rc->ref_count), 0);
 
 	return rc;
@@ -295,18 +281,15 @@ fail_malloc_rc:
  * debug_areas_free
  * - free all debug areas
  */
-
-static void
-debug_areas_free(debug_info_t* db_info)
+static void debug_areas_free(debug_info_t *db_info)
 {
-	int i,j;
+	int i, j;
 
-	if(!db_info->areas)
+	if (!db_info->areas)
 		return;
 	for (i = 0; i < db_info->nr_areas; i++) {
-		for(j = 0; j < db_info->pages_per_area; j++) {
+		for (j = 0; j < db_info->pages_per_area; j++)
 			kfree(db_info->areas[i][j]);
-		}
 		kfree(db_info->areas[i]);
 	}
 	kfree(db_info->areas);
@@ -317,9 +300,8 @@ debug_areas_free(debug_info_t* db_info)
  * debug_info_free
  * - free memory debug-info
  */
-
-static void
-debug_info_free(debug_info_t* db_info){
+static void debug_info_free(debug_info_t *db_info)
+{
 	debug_areas_free(db_info);
 	kfree(db_info->active_entries);
 	kfree(db_info->active_pages);
@@ -331,35 +313,34 @@ debug_info_free(debug_info_t* db_info){
  * - create new debug-info
  */
 
-static debug_info_t*
-debug_info_create(const char *name, int pages_per_area, int nr_areas,
-		  int buf_size, umode_t mode)
+static debug_info_t *debug_info_create(const char *name, int pages_per_area,
+				       int nr_areas, int buf_size, umode_t mode)
 {
-	debug_info_t* rc;
+	debug_info_t *rc;
 
-        rc = debug_info_alloc(name, pages_per_area, nr_areas, buf_size,
-				DEBUG_DEFAULT_LEVEL, ALL_AREAS);
-        if(!rc) 
+	rc = debug_info_alloc(name, pages_per_area, nr_areas, buf_size,
+			      DEBUG_DEFAULT_LEVEL, ALL_AREAS);
+	if (!rc)
 		goto out;
 
 	rc->mode = mode & ~S_IFMT;
 
 	/* create root directory */
-        rc->debugfs_root_entry = debugfs_create_dir(rc->name,
-					debug_debugfs_root_entry);
+	rc->debugfs_root_entry = debugfs_create_dir(rc->name,
+						    debug_debugfs_root_entry);
 
 	/* append new element to linked list */
-        if (!debug_area_first) {
-                /* first element in list */
-                debug_area_first = rc;
-                rc->prev = NULL;
-        } else {
-                /* append element to end of list */
-                debug_area_last->next = rc;
-                rc->prev = debug_area_last;
-        }
-        debug_area_last = rc;
-        rc->next = NULL;
+	if (!debug_area_first) {
+		/* first element in list */
+		debug_area_first = rc;
+		rc->prev = NULL;
+	} else {
+		/* append element to end of list */
+		debug_area_last->next = rc;
+		rc->prev = debug_area_last;
+	}
+	debug_area_last = rc;
+	rc->next = NULL;
 
 	refcount_set(&rc->ref_count, 1);
 out:
@@ -370,24 +351,22 @@ out:
  * debug_info_copy
  * - copy debug-info
  */
-
-static debug_info_t*
-debug_info_copy(debug_info_t* in, int mode)
+static debug_info_t *debug_info_copy(debug_info_t *in, int mode)
 {
-        int i,j;
-        debug_info_t* rc;
-        unsigned long flags;
+	unsigned long flags;
+	debug_info_t *rc;
+	int i, j;
 
 	/* get a consistent copy of the debug areas */
 	do {
 		rc = debug_info_alloc(in->name, in->pages_per_area,
 			in->nr_areas, in->buf_size, in->level, mode);
 		spin_lock_irqsave(&in->lock, flags);
-		if(!rc)
+		if (!rc)
 			goto out;
 		/* has something changed in the meantime ? */
-		if((rc->pages_per_area == in->pages_per_area) &&
-		   (rc->nr_areas == in->nr_areas)) {
+		if ((rc->pages_per_area == in->pages_per_area) &&
+		    (rc->nr_areas == in->nr_areas)) {
 			break;
 		}
 		spin_unlock_irqrestore(&in->lock, flags);
@@ -395,25 +374,22 @@ debug_info_copy(debug_info_t* in, int mode)
 	} while (1);
 
 	if (mode == NO_AREAS)
-                goto out;
+		goto out;
 
-        for(i = 0; i < in->nr_areas; i++){
-		for(j = 0; j < in->pages_per_area; j++) {
-			memcpy(rc->areas[i][j], in->areas[i][j],PAGE_SIZE);
-		}
-        }
+	for (i = 0; i < in->nr_areas; i++) {
+		for (j = 0; j < in->pages_per_area; j++)
+			memcpy(rc->areas[i][j], in->areas[i][j], PAGE_SIZE);
+	}
 out:
-        spin_unlock_irqrestore(&in->lock, flags);
-        return rc;
+	spin_unlock_irqrestore(&in->lock, flags);
+	return rc;
 }
 
 /*
  * debug_info_get
  * - increments reference count for debug-info
  */
-
-static void
-debug_info_get(debug_info_t * db_info)
+static void debug_info_get(debug_info_t *db_info)
 {
 	if (db_info)
 		refcount_inc(&db_info->ref_count);
@@ -423,9 +399,7 @@ debug_info_get(debug_info_t * db_info)
  * debug_info_put:
  * - decreases reference count for debug-info and frees it if necessary
  */
-
-static void
-debug_info_put(debug_info_t *db_info)
+static void debug_info_put(debug_info_t *db_info)
 {
 	int i;
 
@@ -438,12 +412,14 @@ debug_info_put(debug_info_t *db_info)
 			debugfs_remove(db_info->debugfs_entries[i]);
 		}
 		debugfs_remove(db_info->debugfs_root_entry);
-		if(db_info == debug_area_first)
+		if (db_info == debug_area_first)
 			debug_area_first = db_info->next;
-		if(db_info == debug_area_last)
+		if (db_info == debug_area_last)
 			debug_area_last = db_info->prev;
-		if(db_info->prev) db_info->prev->next = db_info->next;
-		if(db_info->next) db_info->next->prev = db_info->prev;
+		if (db_info->prev)
+			db_info->prev->next = db_info->next;
+		if (db_info->next)
+			db_info->next->prev = db_info->prev;
 		debug_info_free(db_info);
 	}
 }
@@ -452,71 +428,68 @@ debug_info_put(debug_info_t *db_info)
  * debug_format_entry:
  * - format one debug entry and return size of formated data
  */
-
-static int
-debug_format_entry(file_private_info_t *p_info)
+static int debug_format_entry(file_private_info_t *p_info)
 {
-	debug_info_t *id_snap   = p_info->debug_info_snap;
+	debug_info_t *id_snap	= p_info->debug_info_snap;
 	struct debug_view *view = p_info->view;
 	debug_entry_t *act_entry;
 	size_t len = 0;
-	if(p_info->act_entry == DEBUG_PROLOG_ENTRY){
+
+	if (p_info->act_entry == DEBUG_PROLOG_ENTRY) {
 		/* print prolog */
-        	if (view->prolog_proc)
-                	len += view->prolog_proc(id_snap,view,p_info->temp_buf);
+		if (view->prolog_proc)
+			len += view->prolog_proc(id_snap, view, p_info->temp_buf);
 		goto out;
 	}
 	if (!id_snap->areas) /* this is true, if we have a prolog only view */
 		goto out;    /* or if 'pages_per_area' is 0 */
-	act_entry = (debug_entry_t *) ((char*)id_snap->areas[p_info->act_area]
-				[p_info->act_page] + p_info->act_entry);
-                        
+	act_entry = (debug_entry_t *) ((char *)id_snap->areas[p_info->act_area]
+				       [p_info->act_page] + p_info->act_entry);
+
 	if (act_entry->id.stck == 0LL)
-			goto out;  /* empty entry */
+		goto out; /* empty entry */
 	if (view->header_proc)
 		len += view->header_proc(id_snap, view, p_info->act_area,
-					act_entry, p_info->temp_buf + len);
+					 act_entry, p_info->temp_buf + len);
 	if (view->format_proc)
 		len += view->format_proc(id_snap, view, p_info->temp_buf + len,
-						DEBUG_DATA(act_entry));
+					 DEBUG_DATA(act_entry));
 out:
-        return len;
+	return len;
 }
 
 /*
  * debug_next_entry:
  * - goto next entry in p_info
  */
-
-static inline int
-debug_next_entry(file_private_info_t *p_info)
+static inline int debug_next_entry(file_private_info_t *p_info)
 {
 	debug_info_t *id;
 
 	id = p_info->debug_info_snap;
-	if(p_info->act_entry == DEBUG_PROLOG_ENTRY){
+	if (p_info->act_entry == DEBUG_PROLOG_ENTRY) {
 		p_info->act_entry = 0;
 		p_info->act_page  = 0;
 		goto out;
 	}
-	if(!id->areas)
+	if (!id->areas)
 		return 1;
 	p_info->act_entry += id->entry_size;
 	/* switch to next page, if we reached the end of the page  */
-	if (p_info->act_entry > (PAGE_SIZE - id->entry_size)){
+	if (p_info->act_entry > (PAGE_SIZE - id->entry_size)) {
 		/* next page */
 		p_info->act_entry = 0;
 		p_info->act_page += 1;
-		if((p_info->act_page % id->pages_per_area) == 0) {
+		if ((p_info->act_page % id->pages_per_area) == 0) {
 			/* next area */
-        		p_info->act_area++;
-			p_info->act_page=0;
+			p_info->act_area++;
+			p_info->act_page = 0;
 		}
-        	if(p_info->act_area >= id->nr_areas)
+		if (p_info->act_area >= id->nr_areas)
 			return 1;
 	}
 out:
-	return 0;	
+	return 0;
 }
 
 /*
@@ -524,26 +497,24 @@ out:
  * - called for user read()
  * - copies formated debug entries to the user buffer
  */
-
-static ssize_t
-debug_output(struct file *file,		/* file descriptor */
-	    char __user *user_buf,	/* user buffer */
-	    size_t  len,		/* length of buffer */
-	    loff_t *offset)		/* offset in the file */
+static ssize_t debug_output(struct file *file,		/* file descriptor */
+			    char __user *user_buf,	/* user buffer */
+			    size_t len,			/* length of buffer */
+			    loff_t *offset)		/* offset in the file */
 {
 	size_t count = 0;
 	size_t entry_offset;
 	file_private_info_t *p_info;
 
-	p_info = ((file_private_info_t *) file->private_data);
-	if (*offset != p_info->offset) 
+	p_info = (file_private_info_t *) file->private_data;
+	if (*offset != p_info->offset)
 		return -EPIPE;
-	if(p_info->act_area >= p_info->debug_info_snap->nr_areas)
+	if (p_info->act_area >= p_info->debug_info_snap->nr_areas)
 		return 0;
 	entry_offset = p_info->act_entry_offset;
-	while(count < len){
-		int formatted_line_size;
+	while (count < len) {
 		int formatted_line_residue;
+		int formatted_line_size;
 		int user_buf_residue;
 		size_t copy_size;
 
@@ -551,21 +522,21 @@ debug_output(struct file *file,		/* file descriptor */
 		formatted_line_residue = formatted_line_size - entry_offset;
 		user_buf_residue = len-count;
 		copy_size = min(user_buf_residue, formatted_line_residue);
-		if(copy_size){
+		if (copy_size) {
 			if (copy_to_user(user_buf + count, p_info->temp_buf
-					+ entry_offset, copy_size))
+					 + entry_offset, copy_size))
 				return -EFAULT;
 			count += copy_size;
 			entry_offset += copy_size;
 		}
-		if(copy_size == formatted_line_residue){
+		if (copy_size == formatted_line_residue) {
 			entry_offset = 0;
-			if(debug_next_entry(p_info))
+			if (debug_next_entry(p_info))
 				goto out;
 		}
 	}
 out:
-	p_info->offset           = *offset + count;
+	p_info->offset		 = *offset + count;
 	p_info->act_entry_offset = entry_offset;
 	*offset = p_info->offset;
 	return count;
@@ -576,24 +547,23 @@ out:
  * - called for user write()
  * - calls input function of view
  */
-
-static ssize_t
-debug_input(struct file *file, const char __user *user_buf, size_t length,
-		loff_t *offset)
+static ssize_t debug_input(struct file *file, const char __user *user_buf,
+			   size_t length, loff_t *offset)
 {
-	int rc = 0;
 	file_private_info_t *p_info;
+	int rc = 0;
 
 	mutex_lock(&debug_mutex);
 	p_info = ((file_private_info_t *) file->private_data);
-	if (p_info->view->input_proc)
+	if (p_info->view->input_proc) {
 		rc = p_info->view->input_proc(p_info->debug_info_org,
 					      p_info->view, file, user_buf,
 					      length, offset);
-	else
+	} else {
 		rc = -EPERM;
+	}
 	mutex_unlock(&debug_mutex);
-	return rc;		/* number of input characters */
+	return rc; /* number of input characters */
 }
 
 /*
@@ -602,13 +572,11 @@ debug_input(struct file *file, const char __user *user_buf, size_t length,
  * - copies formated output to private_data area of the file
  *   handle
  */
-
-static int
-debug_open(struct inode *inode, struct file *file)
+static int debug_open(struct inode *inode, struct file *file)
 {
-	int i, rc = 0;
-	file_private_info_t *p_info;
 	debug_info_t *debug_info, *debug_info_snapshot;
+	file_private_info_t *p_info;
+	int i, rc = 0;
 
 	mutex_lock(&debug_mutex);
 	debug_info = file_inode(file)->i_private;
@@ -616,10 +584,8 @@ debug_open(struct inode *inode, struct file *file)
 	for (i = 0; i < DEBUG_MAX_VIEWS; i++) {
 		if (!debug_info->views[i])
 			continue;
-		else if (debug_info->debugfs_entries[i] ==
-			 file->f_path.dentry) {
-			goto found;	/* found view ! */
-		}
+		else if (debug_info->debugfs_entries[i] == file->f_path.dentry)
+			goto found; /* found view ! */
 	}
 	/* no entry found */
 	rc = -EINVAL;
@@ -627,31 +593,28 @@ debug_open(struct inode *inode, struct file *file)
 
 found:
 
-	/* Make snapshot of current debug areas to get it consistent.     */
+	/* Make snapshot of current debug areas to get it consistent.	  */
 	/* To copy all the areas is only needed, if we have a view which  */
 	/* formats the debug areas. */
 
-	if(!debug_info->views[i]->format_proc &&
-		!debug_info->views[i]->header_proc){
+	if (!debug_info->views[i]->format_proc && !debug_info->views[i]->header_proc)
 		debug_info_snapshot = debug_info_copy(debug_info, NO_AREAS);
-	} else {
+	else
 		debug_info_snapshot = debug_info_copy(debug_info, ALL_AREAS);
-	}
 
-	if(!debug_info_snapshot){
+	if (!debug_info_snapshot) {
 		rc = -ENOMEM;
 		goto out;
 	}
-	p_info = kmalloc(sizeof(file_private_info_t),
-						GFP_KERNEL);
-	if(!p_info){
+	p_info = kmalloc(sizeof(file_private_info_t), GFP_KERNEL);
+	if (!p_info) {
 		debug_info_free(debug_info_snapshot);
 		rc = -ENOMEM;
 		goto out;
 	}
 	p_info->offset = 0;
 	p_info->debug_info_snap = debug_info_snapshot;
-	p_info->debug_info_org  = debug_info;
+	p_info->debug_info_org	= debug_info;
 	p_info->view = debug_info->views[i];
 	p_info->act_area = 0;
 	p_info->act_page = 0;
@@ -670,17 +633,16 @@ out:
  * - called for user close()
  * - deletes  private_data area of the file handle
  */
-
-static int
-debug_close(struct inode *inode, struct file *file)
+static int debug_close(struct inode *inode, struct file *file)
 {
 	file_private_info_t *p_info;
+
 	p_info = (file_private_info_t *) file->private_data;
-	if(p_info->debug_info_snap)
+	if (p_info->debug_info_snap)
 		debug_info_free(p_info->debug_info_snap);
 	debug_info_put(p_info->debug_info_org);
 	kfree(file->private_data);
-	return 0;		/* success */
+	return 0; /* success */
 }
 
 /*
@@ -689,7 +651,6 @@ debug_close(struct inode *inode, struct file *file)
  *   The mode parameter allows to specify access rights for the s390dbf files
  * - Returns handle for debug area
  */
-
 debug_info_t *debug_register_mode(const char *name, int pages_per_area,
 				  int nr_areas, int buf_size, umode_t mode,
 				  uid_t uid, gid_t gid)
@@ -703,18 +664,16 @@ debug_info_t *debug_register_mode(const char *name, int pages_per_area,
 	BUG_ON(!initialized);
 	mutex_lock(&debug_mutex);
 
-        /* create new debug_info */
-
+	/* create new debug_info */
 	rc = debug_info_create(name, pages_per_area, nr_areas, buf_size, mode);
-	if(!rc) 
+	if (!rc)
 		goto out;
 	debug_register_view(rc, &debug_level_view);
-        debug_register_view(rc, &debug_flush_view);
+	debug_register_view(rc, &debug_flush_view);
 	debug_register_view(rc, &debug_pages_view);
 out:
-        if (!rc){
+	if (!rc)
 		pr_err("Registering debug feature %s failed\n", name);
-        }
 	mutex_unlock(&debug_mutex);
 	return rc;
 }
@@ -725,7 +684,6 @@ EXPORT_SYMBOL(debug_register_mode);
  * - creates and initializes debug area for the caller
  * - returns handle for debug area
  */
-
 debug_info_t *debug_register(const char *name, int pages_per_area,
 			     int nr_areas, int buf_size)
 {
@@ -738,18 +696,13 @@ EXPORT_SYMBOL(debug_register);
  * debug_unregister:
  * - give back debug area
  */
-
-void
-debug_unregister(debug_info_t * id)
+void debug_unregister(debug_info_t *id)
 {
 	if (!id)
-		goto out;
+		return;
 	mutex_lock(&debug_mutex);
 	debug_info_put(id);
 	mutex_unlock(&debug_mutex);
-
-out:
-	return;
 }
 EXPORT_SYMBOL(debug_unregister);
 
@@ -757,18 +710,17 @@ EXPORT_SYMBOL(debug_unregister);
  * debug_set_size:
  * - set area size (number of pages) and number of areas
  */
-static int
-debug_set_size(debug_info_t* id, int nr_areas, int pages_per_area)
+static int debug_set_size(debug_info_t *id, int nr_areas, int pages_per_area)
 {
+	debug_entry_t ***new_areas;
 	unsigned long flags;
-	debug_entry_t *** new_areas;
-	int rc=0;
+	int rc = 0;
 
-	if(!id || (nr_areas <= 0) || (pages_per_area < 0))
+	if (!id || (nr_areas <= 0) || (pages_per_area < 0))
 		return -EINVAL;
-	if(pages_per_area > 0){
+	if (pages_per_area > 0) {
 		new_areas = debug_areas_alloc(pages_per_area, nr_areas);
-		if(!new_areas) {
+		if (!new_areas) {
 			pr_info("Allocating memory for %i pages failed\n",
 				pages_per_area);
 			rc = -ENOMEM;
@@ -777,16 +729,16 @@ debug_set_size(debug_info_t* id, int nr_areas, int pages_per_area)
 	} else {
 		new_areas = NULL;
 	}
-	spin_lock_irqsave(&id->lock,flags);
+	spin_lock_irqsave(&id->lock, flags);
 	debug_areas_free(id);
 	id->areas = new_areas;
 	id->nr_areas = nr_areas;
 	id->pages_per_area = pages_per_area;
 	id->active_area = 0;
-	memset(id->active_entries,0,sizeof(int)*id->nr_areas);
+	memset(id->active_entries, 0, sizeof(int)*id->nr_areas);
 	memset(id->active_pages, 0, sizeof(int)*id->nr_areas);
-	spin_unlock_irqrestore(&id->lock,flags);
-	pr_info("%s: set new size (%i pages)\n" ,id->name, pages_per_area);
+	spin_unlock_irqrestore(&id->lock, flags);
+	pr_info("%s: set new size (%i pages)\n", id->name, pages_per_area);
 out:
 	return rc;
 }
@@ -795,24 +747,23 @@ out:
  * debug_set_level:
  * - set actual debug level
  */
-
-void
-debug_set_level(debug_info_t* id, int new_level)
+void debug_set_level(debug_info_t *id, int new_level)
 {
 	unsigned long flags;
-	if(!id)
-		return;	
-	spin_lock_irqsave(&id->lock,flags);
-        if(new_level == DEBUG_OFF_LEVEL){
-                id->level = DEBUG_OFF_LEVEL;
-		pr_info("%s: switched off\n",id->name);
-        } else if ((new_level > DEBUG_MAX_LEVEL) || (new_level < 0)) {
+
+	if (!id)
+		return;
+	spin_lock_irqsave(&id->lock, flags);
+	if (new_level == DEBUG_OFF_LEVEL) {
+		id->level = DEBUG_OFF_LEVEL;
+		pr_info("%s: switched off\n", id->name);
+	} else if ((new_level > DEBUG_MAX_LEVEL) || (new_level < 0)) {
 		pr_info("%s: level %i is out of range (%i - %i)\n",
-                        id->name, new_level, 0, DEBUG_MAX_LEVEL);
-        } else {
-                id->level = new_level;
-        }
-	spin_unlock_irqrestore(&id->lock,flags);
+			id->name, new_level, 0, DEBUG_MAX_LEVEL);
+	} else {
+		id->level = new_level;
+	}
+	spin_unlock_irqrestore(&id->lock, flags);
 }
 EXPORT_SYMBOL(debug_set_level);
 
@@ -820,12 +771,10 @@ EXPORT_SYMBOL(debug_set_level);
  * proceed_active_entry:
  * - set active entry to next in the ring buffer
  */
-
-static inline void
-proceed_active_entry(debug_info_t * id)
+static inline void proceed_active_entry(debug_info_t *id)
 {
 	if ((id->active_entries[id->active_area] += id->entry_size)
-	    > (PAGE_SIZE - id->entry_size)){
+	    > (PAGE_SIZE - id->entry_size)) {
 		id->active_entries[id->active_area] = 0;
 		id->active_pages[id->active_area] =
 			(id->active_pages[id->active_area] + 1) %
@@ -837,9 +786,7 @@ proceed_active_entry(debug_info_t * id)
  * proceed_active_area:
  * - set active area to next in the ring buffer
  */
-
-static inline void
-proceed_active_area(debug_info_t * id)
+static inline void proceed_active_area(debug_info_t *id)
 {
 	id->active_area++;
 	id->active_area = id->active_area % id->nr_areas;
@@ -848,13 +795,11 @@ proceed_active_area(debug_info_t * id)
 /*
  * get_active_entry:
  */
-
-static inline debug_entry_t*
-get_active_entry(debug_info_t * id)
+static inline debug_entry_t *get_active_entry(debug_info_t *id)
 {
 	return (debug_entry_t *) (((char *) id->areas[id->active_area]
-					[id->active_pages[id->active_area]]) +
-					id->active_entries[id->active_area]);
+				   [id->active_pages[id->active_area]]) +
+				  id->active_entries[id->active_area]);
 }
 
 /*
@@ -862,23 +807,22 @@ get_active_entry(debug_info_t * id)
  * - set timestamp, caller address, cpu number etc.
  */
 
-static inline void
-debug_finish_entry(debug_info_t * id, debug_entry_t* active, int level,
-			int exception)
+static inline void debug_finish_entry(debug_info_t *id, debug_entry_t *active,
+				      int level, int exception)
 {
 	active->id.stck = get_tod_clock_fast() -
 		*(unsigned long long *) &tod_clock_base[1];
 	active->id.fields.cpuid = smp_processor_id();
 	active->caller = __builtin_return_address(0);
 	active->id.fields.exception = exception;
-	active->id.fields.level     = level;
+	active->id.fields.level = level;
 	proceed_active_entry(id);
-	if(exception)
+	if (exception)
 		proceed_active_area(id);
 }
 
-static int debug_stoppable=1;
-static int debug_active=1;
+static int debug_stoppable = 1;
+static int debug_active = 1;
 
 #define CTL_S390DBF_STOPPABLE 5678
 #define CTL_S390DBF_ACTIVE 5679
@@ -888,9 +832,8 @@ static int debug_active=1;
  * always allow read, allow write only if debug_stoppable is set or
  * if debug_active is already off
  */
-static int
-s390dbf_procactive(struct ctl_table *table, int write,
-                     void __user *buffer, size_t *lenp, loff_t *ppos)
+static int s390dbf_procactive(struct ctl_table *table, int write,
+			      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	if (!write || debug_stoppable || !debug_active)
 		return proc_dointvec(table, write, buffer, lenp, ppos);
@@ -898,39 +841,37 @@ s390dbf_procactive(struct ctl_table *table, int write,
 		return 0;
 }
 
-
 static struct ctl_table s390dbf_table[] = {
 	{
-		.procname       = "debug_stoppable",
+		.procname	= "debug_stoppable",
 		.data		= &debug_stoppable,
 		.maxlen		= sizeof(int),
-		.mode           = S_IRUGO | S_IWUSR,
-		.proc_handler   = proc_dointvec,
+		.mode		= S_IRUGO | S_IWUSR,
+		.proc_handler	= proc_dointvec,
 	},
-	 {
-		.procname       = "debug_active",
+	{
+		.procname	= "debug_active",
 		.data		= &debug_active,
 		.maxlen		= sizeof(int),
-		.mode           = S_IRUGO | S_IWUSR,
-		.proc_handler   = s390dbf_procactive,
+		.mode		= S_IRUGO | S_IWUSR,
+		.proc_handler	= s390dbf_procactive,
 	},
 	{ }
 };
 
 static struct ctl_table s390dbf_dir_table[] = {
 	{
-		.procname       = "s390dbf",
-		.maxlen         = 0,
-		.mode           = S_IRUGO | S_IXUGO,
-		.child          = s390dbf_table,
+		.procname	= "s390dbf",
+		.maxlen		= 0,
+		.mode		= S_IRUGO | S_IXUGO,
+		.child		= s390dbf_table,
 	},
 	{ }
 };
 
 static struct ctl_table_header *s390dbf_sysctl_header;
 
-void
-debug_stop_all(void)
+void debug_stop_all(void)
 {
 	if (debug_stoppable)
 		debug_active = 0;
@@ -946,26 +887,31 @@ void debug_set_critical(void)
  * debug_event_common:
  * - write debug entry with given size
  */
-
-debug_entry_t*
-debug_event_common(debug_info_t * id, int level, const void *buf, int len)
+debug_entry_t *debug_event_common(debug_info_t *id, int level, const void *buf,
+				  int len)
 {
-	unsigned long flags;
 	debug_entry_t *active;
+	unsigned long flags;
 
 	if (!debug_active || !id->areas)
 		return NULL;
 	if (debug_critical) {
 		if (!spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
-	} else
+	} else {
 		spin_lock_irqsave(&id->lock, flags);
-	active = get_active_entry(id);
-	memset(DEBUG_DATA(active), 0, id->buf_size);
-	memcpy(DEBUG_DATA(active), buf, min(len, id->buf_size));
-	debug_finish_entry(id, active, level, 0);
-	spin_unlock_irqrestore(&id->lock, flags);
+	}
+	do {
+		active = get_active_entry(id);
+		memcpy(DEBUG_DATA(active), buf, min(len, id->buf_size));
+		if (len < id->buf_size)
+			memset((DEBUG_DATA(active)) + len, 0, id->buf_size - len);
+		debug_finish_entry(id, active, level, 0);
+		len -= id->buf_size;
+		buf += id->buf_size;
+	} while (len > 0);
 
+	spin_unlock_irqrestore(&id->lock, flags);
 	return active;
 }
 EXPORT_SYMBOL(debug_event_common);
@@ -974,26 +920,31 @@ EXPORT_SYMBOL(debug_event_common);
  * debug_exception_common:
  * - write debug entry with given size and switch to next debug area
  */
-
-debug_entry_t
-*debug_exception_common(debug_info_t * id, int level, const void *buf, int len)
+debug_entry_t *debug_exception_common(debug_info_t *id, int level,
+				      const void *buf, int len)
 {
-	unsigned long flags;
 	debug_entry_t *active;
+	unsigned long flags;
 
 	if (!debug_active || !id->areas)
 		return NULL;
 	if (debug_critical) {
 		if (!spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
-	} else
+	} else {
 		spin_lock_irqsave(&id->lock, flags);
-	active = get_active_entry(id);
-	memset(DEBUG_DATA(active), 0, id->buf_size);
-	memcpy(DEBUG_DATA(active), buf, min(len, id->buf_size));
-	debug_finish_entry(id, active, level, 1);
-	spin_unlock_irqrestore(&id->lock, flags);
+	}
+	do {
+		active = get_active_entry(id);
+		memcpy(DEBUG_DATA(active), buf, min(len, id->buf_size));
+		if (len < id->buf_size)
+			memset((DEBUG_DATA(active)) + len, 0, id->buf_size - len);
+		debug_finish_entry(id, active, level, len <= id->buf_size);
+		len -= id->buf_size;
+		buf += id->buf_size;
+	} while (len > 0);
 
+	spin_unlock_irqrestore(&id->lock, flags);
 	return active;
 }
 EXPORT_SYMBOL(debug_exception_common);
@@ -1001,47 +952,44 @@ EXPORT_SYMBOL(debug_exception_common);
 /*
  * counts arguments in format string for sprintf view
  */
-
-static inline int
-debug_count_numargs(char *string)
+static inline int debug_count_numargs(char *string)
 {
-	int numargs=0;
+	int numargs = 0;
 
-	while(*string) {
-		if(*string++=='%')
+	while (*string) {
+		if (*string++ == '%')
 			numargs++;
 	}
-	return(numargs);
+	return numargs;
 }
 
 /*
  * debug_sprintf_event:
  */
-
-debug_entry_t*
-__debug_sprintf_event(debug_info_t *id, int level, char *string, ...)
+debug_entry_t *__debug_sprintf_event(debug_info_t *id, int level, char *string, ...)
 {
-	va_list   ap;
-	int numargs,idx;
-	unsigned long flags;
 	debug_sprintf_entry_t *curr_event;
 	debug_entry_t *active;
+	unsigned long flags;
+	int numargs, idx;
+	va_list ap;
 
 	if (!debug_active || !id->areas)
 		return NULL;
-	numargs=debug_count_numargs(string);
+	numargs = debug_count_numargs(string);
 
 	if (debug_critical) {
 		if (!spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
-	} else
+	} else {
 		spin_lock_irqsave(&id->lock, flags);
+	}
 	active = get_active_entry(id);
-	curr_event=(debug_sprintf_entry_t *) DEBUG_DATA(active);
-	va_start(ap,string);
-	curr_event->string=string;
-	for(idx=0;idx<min(numargs,(int)(id->buf_size / sizeof(long))-1);idx++)
-		curr_event->args[idx]=va_arg(ap,long);
+	curr_event = (debug_sprintf_entry_t *) DEBUG_DATA(active);
+	va_start(ap, string);
+	curr_event->string = string;
+	for (idx = 0; idx < min(numargs, (int)(id->buf_size / sizeof(long)) - 1); idx++)
+		curr_event->args[idx] = va_arg(ap, long);
 	va_end(ap);
 	debug_finish_entry(id, active, level, 0);
 	spin_unlock_irqrestore(&id->lock, flags);
@@ -1053,32 +1001,31 @@ EXPORT_SYMBOL(__debug_sprintf_event);
 /*
  * debug_sprintf_exception:
  */
-
-debug_entry_t*
-__debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)
+debug_entry_t *__debug_sprintf_exception(debug_info_t *id, int level, char *string, ...)
 {
-	va_list   ap;
-	int numargs,idx;
-	unsigned long flags;
 	debug_sprintf_entry_t *curr_event;
 	debug_entry_t *active;
+	unsigned long flags;
+	int numargs, idx;
+	va_list ap;
 
 	if (!debug_active || !id->areas)
 		return NULL;
 
-	numargs=debug_count_numargs(string);
+	numargs = debug_count_numargs(string);
 
 	if (debug_critical) {
 		if (!spin_trylock_irqsave(&id->lock, flags))
 			return NULL;
-	} else
+	} else {
 		spin_lock_irqsave(&id->lock, flags);
+	}
 	active = get_active_entry(id);
-	curr_event=(debug_sprintf_entry_t *)DEBUG_DATA(active);
-	va_start(ap,string);
-	curr_event->string=string;
-	for(idx=0;idx<min(numargs,(int)(id->buf_size / sizeof(long))-1);idx++)
-		curr_event->args[idx]=va_arg(ap,long);
+	curr_event = (debug_sprintf_entry_t *)DEBUG_DATA(active);
+	va_start(ap, string);
+	curr_event->string = string;
+	for (idx = 0; idx < min(numargs, (int)(id->buf_size / sizeof(long)) - 1); idx++)
+		curr_event->args[idx] = va_arg(ap, long);
 	va_end(ap);
 	debug_finish_entry(id, active, level, 1);
 	spin_unlock_irqrestore(&id->lock, flags);
@@ -1090,15 +1037,13 @@ EXPORT_SYMBOL(__debug_sprintf_exception);
 /*
  * debug_register_view:
  */
-
-int
-debug_register_view(debug_info_t * id, struct debug_view *view)
+int debug_register_view(debug_info_t *id, struct debug_view *view)
 {
-	int rc = 0;
-	int i;
 	unsigned long flags;
-	umode_t mode;
 	struct dentry *pde;
+	umode_t mode;
+	int rc = 0;
+	int i;
 
 	if (!id)
 		goto out;
@@ -1108,10 +1053,10 @@ debug_register_view(debug_info_t * id, struct debug_view *view)
 	if (!view->input_proc)
 		mode &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
 	pde = debugfs_create_file(view->name, mode, id->debugfs_root_entry,
-				id , &debug_file_ops);
-	if (!pde){
+				  id, &debug_file_ops);
+	if (!pde) {
 		pr_err("Registering view %s/%s failed due to out of "
-		       "memory\n", id->name,view->name);
+		       "memory\n", id->name, view->name);
 		rc = -1;
 		goto out;
 	}
@@ -1139,9 +1084,7 @@ EXPORT_SYMBOL(debug_register_view);
 /*
  * debug_unregister_view:
  */
-
-int
-debug_unregister_view(debug_info_t * id, struct debug_view *view)
+int debug_unregister_view(debug_info_t *id, struct debug_view *view)
 {
 	struct dentry *dentry = NULL;
 	unsigned long flags;
@@ -1154,9 +1097,9 @@ debug_unregister_view(debug_info_t * id, struct debug_view *view)
 		if (id->views[i] == view)
 			break;
 	}
-	if (i == DEBUG_MAX_VIEWS)
+	if (i == DEBUG_MAX_VIEWS) {
 		rc = -1;
-	else {
+	} else {
 		dentry = id->debugfs_entries[i];
 		id->views[i] = NULL;
 		id->debugfs_entries[i] = NULL;
@@ -1168,10 +1111,10 @@ out:
 }
 EXPORT_SYMBOL(debug_unregister_view);
 
-static inline char *
-debug_get_user_string(const char __user *user_buf, size_t user_len)
+static inline char *debug_get_user_string(const char __user *user_buf,
+					  size_t user_len)
 {
-	char* buffer;
+	char *buffer;
 
 	buffer = kmalloc(user_len + 1, GFP_KERNEL);
 	if (!buffer)
@@ -1185,19 +1128,17 @@ debug_get_user_string(const char __user *user_buf, size_t user_len)
 		buffer[user_len - 1] = 0;
 	else
 		buffer[user_len] = 0;
-        return buffer;
+	return buffer;
 }
 
-static inline int
-debug_get_uint(char *buf)
+static inline int debug_get_uint(char *buf)
 {
 	int rc;
 
 	buf = skip_spaces(buf);
 	rc = simple_strtoul(buf, &buf, 10);
-	if(*buf){
+	if (*buf)
 		rc = -EINVAL;
-	}
 	return rc;
 }
 
@@ -1210,9 +1151,8 @@ debug_get_uint(char *buf)
  * prints out actual debug level
  */
 
-static int
-debug_prolog_pages_fn(debug_info_t * id,
-				 struct debug_view *view, char *out_buf)
+static int debug_prolog_pages_fn(debug_info_t *id, struct debug_view *view,
+				 char *out_buf)
 {
 	return sprintf(out_buf, "%i\n", id->pages_per_area);
 }
@@ -1221,32 +1161,31 @@ debug_prolog_pages_fn(debug_info_t * id,
  * reads new size (number of pages per debug area)
  */
 
-static int
-debug_input_pages_fn(debug_info_t * id, struct debug_view *view,
-			struct file *file, const char __user *user_buf,
-			size_t user_len, loff_t * offset)
+static int debug_input_pages_fn(debug_info_t *id, struct debug_view *view,
+				struct file *file, const char __user *user_buf,
+				size_t user_len, loff_t *offset)
 {
+	int rc, new_pages;
 	char *str;
-	int rc,new_pages;
 
 	if (user_len > 0x10000)
-                user_len = 0x10000;
-	if (*offset != 0){
+		user_len = 0x10000;
+	if (*offset != 0) {
 		rc = -EPIPE;
 		goto out;
 	}
-	str = debug_get_user_string(user_buf,user_len);
-	if(IS_ERR(str)){
+	str = debug_get_user_string(user_buf, user_len);
+	if (IS_ERR(str)) {
 		rc = PTR_ERR(str);
 		goto out;
 	}
 	new_pages = debug_get_uint(str);
-	if(new_pages < 0){
+	if (new_pages < 0) {
 		rc = -EINVAL;
 		goto free_str;
 	}
-	rc = debug_set_size(id,id->nr_areas, new_pages);
-	if(rc != 0){
+	rc = debug_set_size(id, id->nr_areas, new_pages);
+	if (rc != 0) {
 		rc = -EINVAL;
 		goto free_str;
 	}
@@ -1261,52 +1200,47 @@ out:
 /*
  * prints out actual debug level
  */
-
-static int
-debug_prolog_level_fn(debug_info_t * id, struct debug_view *view, char *out_buf)
+static int debug_prolog_level_fn(debug_info_t *id, struct debug_view *view,
+				 char *out_buf)
 {
 	int rc = 0;
 
-	if(id->level == DEBUG_OFF_LEVEL) {
-		rc = sprintf(out_buf,"-\n");
-	}
-	else {
+	if (id->level == DEBUG_OFF_LEVEL)
+		rc = sprintf(out_buf, "-\n");
+	else
 		rc = sprintf(out_buf, "%i\n", id->level);
-	}
 	return rc;
 }
 
 /*
  * reads new debug level
  */
-
-static int
-debug_input_level_fn(debug_info_t * id, struct debug_view *view,
-			struct file *file, const char __user *user_buf,
-			size_t user_len, loff_t * offset)
+static int debug_input_level_fn(debug_info_t *id, struct debug_view *view,
+				struct file *file, const char __user *user_buf,
+				size_t user_len, loff_t *offset)
 {
+	int rc, new_level;
 	char *str;
-	int rc,new_level;
 
 	if (user_len > 0x10000)
-                user_len = 0x10000;
-	if (*offset != 0){
+		user_len = 0x10000;
+	if (*offset != 0) {
 		rc = -EPIPE;
 		goto out;
 	}
-	str = debug_get_user_string(user_buf,user_len);
-	if(IS_ERR(str)){
+	str = debug_get_user_string(user_buf, user_len);
+	if (IS_ERR(str)) {
 		rc = PTR_ERR(str);
 		goto out;
 	}
-	if(str[0] == '-'){
+	if (str[0] == '-') {
 		debug_set_level(id, DEBUG_OFF_LEVEL);
 		rc = user_len;
 		goto free_str;
 	} else {
 		new_level = debug_get_uint(str);
 	}
-	if(new_level < 0) {
+	if (new_level < 0) {
 		pr_warn("%s is not a valid level for a debug feature\n", str);
 		rc = -EINVAL;
 	} else {
@@ -1320,99 +1254,90 @@ out:
 	return rc;		/* number of input characters */
 }
 
-
 /*
  * flushes debug areas
  */
- 
-static void debug_flush(debug_info_t* id, int area)
+static void debug_flush(debug_info_t *id, int area)
 {
-        unsigned long flags;
-        int i,j;
-
-        if(!id || !id->areas)
-                return;
-        spin_lock_irqsave(&id->lock,flags);
-        if(area == DEBUG_FLUSH_ALL){
-                id->active_area = 0;
-                memset(id->active_entries, 0, id->nr_areas * sizeof(int));
-                for (i = 0; i < id->nr_areas; i++) {
+	unsigned long flags;
+	int i, j;
+
+	if (!id || !id->areas)
+		return;
+	spin_lock_irqsave(&id->lock, flags);
+	if (area == DEBUG_FLUSH_ALL) {
+		id->active_area = 0;
+		memset(id->active_entries, 0, id->nr_areas * sizeof(int));
+		for (i = 0; i < id->nr_areas; i++) {
 			id->active_pages[i] = 0;
-			for(j = 0; j < id->pages_per_area; j++) {
-                        	memset(id->areas[i][j], 0, PAGE_SIZE);
-			}
+			for (j = 0; j < id->pages_per_area; j++)
+				memset(id->areas[i][j], 0, PAGE_SIZE);
 		}
-        } else if(area >= 0 && area < id->nr_areas) {
-                id->active_entries[area] = 0;
+	} else if (area >= 0 && area < id->nr_areas) {
+		id->active_entries[area] = 0;
 		id->active_pages[area] = 0;
-		for(i = 0; i < id->pages_per_area; i++) {
-                	memset(id->areas[area][i],0,PAGE_SIZE);
-		}
-        }
-        spin_unlock_irqrestore(&id->lock,flags);
+		for (i = 0; i < id->pages_per_area; i++)
+			memset(id->areas[area][i], 0, PAGE_SIZE);
+	}
+	spin_unlock_irqrestore(&id->lock, flags);
 }
 
 /*
- * view function: flushes debug areas 
+ * view function: flushes debug areas
  */
-
-static int
-debug_input_flush_fn(debug_info_t * id, struct debug_view *view,
-			struct file *file, const char __user *user_buf,
-			size_t user_len, loff_t * offset)
+static int debug_input_flush_fn(debug_info_t *id, struct debug_view *view,
+				struct file *file, const char __user *user_buf,
+				size_t user_len, loff_t *offset)
 {
-        char input_buf[1];
-        int rc = user_len;
+	char input_buf[1];
+	int rc = user_len;
 
 	if (user_len > 0x10000)
-                user_len = 0x10000;
-        if (*offset != 0){
+		user_len = 0x10000;
+	if (*offset != 0) {
 		rc = -EPIPE;
-                goto out;
+		goto out;
+	}
+	if (copy_from_user(input_buf, user_buf, 1)) {
+		rc = -EFAULT;
+		goto out;
+	}
+	if (input_buf[0] == '-') {
+		debug_flush(id, DEBUG_FLUSH_ALL);
+		goto out;
+	}
+	if (isdigit(input_buf[0])) {
+		int area = ((int) input_buf[0] - (int) '0');
+
+		debug_flush(id, area);
+		goto out;
 	}
-        if (copy_from_user(input_buf, user_buf, 1)){
-                rc = -EFAULT;
-                goto out;
-        }
-        if(input_buf[0] == '-') { 
-                debug_flush(id, DEBUG_FLUSH_ALL);
-                goto out;
-        }
-        if (isdigit(input_buf[0])) {
-                int area = ((int) input_buf[0] - (int) '0');
-                debug_flush(id, area);
-                goto out;
-        }
 
 	pr_info("Flushing debug data failed because %c is not a valid "
 		 "area\n", input_buf[0]);
 
 out:
-        *offset += user_len;
-        return rc;              /* number of input characters */
+	*offset += user_len;
+	return rc;		/* number of input characters */
 }
 
 /*
  * prints debug header in raw format
  */
-
-static int
-debug_raw_header_fn(debug_info_t * id, struct debug_view *view,
-			int area, debug_entry_t * entry, char *out_buf)
+static int debug_raw_header_fn(debug_info_t *id, struct debug_view *view,
+			       int area, debug_entry_t *entry, char *out_buf)
 {
-        int rc;
+	int rc;
 
 	rc = sizeof(debug_entry_t);
-	memcpy(out_buf,entry,sizeof(debug_entry_t));
-        return rc;
+	memcpy(out_buf, entry, sizeof(debug_entry_t));
+	return rc;
 }
 
 /*
  * prints debug data in raw format
  */
-
-static int
-debug_raw_format_fn(debug_info_t * id, struct debug_view *view,
+static int debug_raw_format_fn(debug_info_t *id, struct debug_view *view,
 			       char *out_buf, const char *in_buf)
 {
 	int rc;
@@ -1425,20 +1350,17 @@ debug_raw_format_fn(debug_info_t * id, struct debug_view *view,
 /*
  * prints debug data in hex/ascii format
  */
-
-static int
-debug_hex_ascii_format_fn(debug_info_t * id, struct debug_view *view,
-	    		  char *out_buf, const char *in_buf)
+static int debug_hex_ascii_format_fn(debug_info_t *id, struct debug_view *view,
+				     char *out_buf, const char *in_buf)
 {
 	int i, rc = 0;
 
-	for (i = 0; i < id->buf_size; i++) {
-                rc += sprintf(out_buf + rc, "%02x ",
-                              ((unsigned char *) in_buf)[i]);
-        }
+	for (i = 0; i < id->buf_size; i++)
+		rc += sprintf(out_buf + rc, "%02x ", ((unsigned char *) in_buf)[i]);
 	rc += sprintf(out_buf + rc, "| ");
 	for (i = 0; i < id->buf_size; i++) {
 		unsigned char c = in_buf[i];
+
 		if (isascii(c) && isprint(c))
 			rc += sprintf(out_buf + rc, "%c", c);
 		else
@@ -1451,16 +1373,14 @@ debug_hex_ascii_format_fn(debug_info_t * id, struct debug_view *view,
 /*
  * prints header for debug entry
  */
-
-int
-debug_dflt_header_fn(debug_info_t * id, struct debug_view *view,
-			 int area, debug_entry_t * entry, char *out_buf)
+int debug_dflt_header_fn(debug_info_t *id, struct debug_view *view,
+			 int area, debug_entry_t *entry, char *out_buf)
 {
 	unsigned long base, sec, usec;
-	char *except_str;
 	unsigned long caller;
-	int rc = 0;
 	unsigned int level;
+	char *except_str;
+	int rc = 0;
 
 	level = entry->id.fields.level;
 	base = (*(unsigned long *) &tod_clock_base[0]) >> 4;
@@ -1486,19 +1406,18 @@ EXPORT_SYMBOL(debug_dflt_header_fn);
 
 #define DEBUG_SPRINTF_MAX_ARGS 10
 
-static int
-debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,
-                        char *out_buf, debug_sprintf_entry_t *curr_event)
+static int debug_sprintf_format_fn(debug_info_t *id, struct debug_view *view,
+				   char *out_buf, debug_sprintf_entry_t *curr_event)
 {
-	int num_longs, num_used_args = 0,i, rc = 0;
+	int num_longs, num_used_args = 0, i, rc = 0;
 	int index[DEBUG_SPRINTF_MAX_ARGS];
 
 	/* count of longs fit into one entry */
-	num_longs = id->buf_size /  sizeof(long); 
+	num_longs = id->buf_size / sizeof(long);
 
-	if(num_longs < 1)
+	if (num_longs < 1)
 		goto out; /* bufsize of entry too small */
-	if(num_longs == 1) {
+	if (num_longs == 1) {
 		/* no args, we use only the string */
 		strcpy(out_buf, curr_event->string);
 		rc = strlen(curr_event->string);
@@ -1506,22 +1425,20 @@ debug_sprintf_format_fn(debug_info_t * id, struct debug_view *view,
 	}
 
 	/* number of arguments used for sprintf (without the format string) */
-	num_used_args   = min(DEBUG_SPRINTF_MAX_ARGS, (num_longs - 1));
+	num_used_args = min(DEBUG_SPRINTF_MAX_ARGS, (num_longs - 1));
 
-	memset(index,0, DEBUG_SPRINTF_MAX_ARGS * sizeof(int));
+	memset(index, 0, DEBUG_SPRINTF_MAX_ARGS * sizeof(int));
 
-	for(i = 0; i < num_used_args; i++)
+	for (i = 0; i < num_used_args; i++)
 		index[i] = i;
 
-	rc =  sprintf(out_buf, curr_event->string, curr_event->args[index[0]],
-		curr_event->args[index[1]], curr_event->args[index[2]],
-		curr_event->args[index[3]], curr_event->args[index[4]],
-		curr_event->args[index[5]], curr_event->args[index[6]],
-		curr_event->args[index[7]], curr_event->args[index[8]],
-		curr_event->args[index[9]]);
-
+	rc = sprintf(out_buf, curr_event->string, curr_event->args[index[0]],
+		     curr_event->args[index[1]], curr_event->args[index[2]],
+		     curr_event->args[index[3]], curr_event->args[index[4]],
+		     curr_event->args[index[5]], curr_event->args[index[6]],
+		     curr_event->args[index[7]], curr_event->args[index[8]],
+		     curr_event->args[index[9]]);
 out:
-
 	return rc;
 }
 
diff --git a/arch/s390/kernel/diag.c b/arch/s390/kernel/diag.c
index 349914571772..53a5316cc4b7 100644
--- a/arch/s390/kernel/diag.c
+++ b/arch/s390/kernel/diag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of s390 diagnose codes
  *
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index f7e82302a71e..b811d3a8417d 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -21,52 +21,91 @@
 #include <linux/reboot.h>
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
-
 #include <linux/uaccess.h>
+#include <linux/atomic.h>
 #include <asm/dis.h>
 #include <asm/io.h>
-#include <linux/atomic.h>
 #include <asm/cpcmd.h>
 #include <asm/lowcore.h>
 #include <asm/debug.h>
 #include <asm/irq.h>
 
+/* Type of operand */
+#define OPERAND_GPR	0x1	/* Operand printed as %rx */
+#define OPERAND_FPR	0x2	/* Operand printed as %fx */
+#define OPERAND_AR	0x4	/* Operand printed as %ax */
+#define OPERAND_CR	0x8	/* Operand printed as %cx */
+#define OPERAND_VR	0x10	/* Operand printed as %vx */
+#define OPERAND_DISP	0x20	/* Operand printed as displacement */
+#define OPERAND_BASE	0x40	/* Operand printed as base register */
+#define OPERAND_INDEX	0x80	/* Operand printed as index register */
+#define OPERAND_PCREL	0x100	/* Operand printed as pc-relative symbol */
+#define OPERAND_SIGNED	0x200	/* Operand printed as signed value */
+#define OPERAND_LENGTH	0x400	/* Operand printed as length (+1) */
+
+struct s390_operand {
+	unsigned char bits;	/* The number of bits in the operand. */
+	unsigned char shift;	/* The number of bits to shift. */
+	unsigned short flags;	/* One bit syntax flags. */
+};
+
+struct s390_insn {
+	union {
+		const char name[5];
+		struct {
+			unsigned char zero;
+			unsigned int offset;
+		} __packed;
+	};
+	unsigned char opfrag;
+	unsigned char format;
+};
+
+struct s390_opcode_offset {
+	unsigned char opcode;
+	unsigned char mask;
+	unsigned char byte;
+	unsigned short offset;
+	unsigned short count;
+} __packed;
+
 enum {
-	UNUSED,	/* Indicates the end of the operand list */
-	R_8,	/* GPR starting at position 8 */
-	R_12,	/* GPR starting at position 12 */
-	R_16,	/* GPR starting at position 16 */
-	R_20,	/* GPR starting at position 20 */
-	R_24,	/* GPR starting at position 24 */
-	R_28,	/* GPR starting at position 28 */
-	R_32,	/* GPR starting at position 32 */
-	F_8,	/* FPR starting at position 8 */
-	F_12,	/* FPR starting at position 12 */
-	F_16,	/* FPR starting at position 16 */
-	F_20,	/* FPR starting at position 16 */
-	F_24,	/* FPR starting at position 24 */
-	F_28,	/* FPR starting at position 28 */
-	F_32,	/* FPR starting at position 32 */
+	UNUSED,
 	A_8,	/* Access reg. starting at position 8 */
 	A_12,	/* Access reg. starting at position 12 */
 	A_24,	/* Access reg. starting at position 24 */
 	A_28,	/* Access reg. starting at position 28 */
-	C_8,	/* Control reg. starting at position 8 */
-	C_12,	/* Control reg. starting at position 12 */
-	V_8,	/* Vector reg. starting at position 8, extension bit at 36 */
-	V_12,	/* Vector reg. starting at position 12, extension bit at 37 */
-	V_16,	/* Vector reg. starting at position 16, extension bit at 38 */
-	V_32,	/* Vector reg. starting at position 32, extension bit at 39 */
-	W_12,	/* Vector reg. at bit 12, extension at bit 37, used as index */
 	B_16,	/* Base register starting at position 16 */
 	B_32,	/* Base register starting at position 32 */
-	X_12,	/* Index register starting at position 12 */
+	C_8,	/* Control reg. starting at position 8 */
+	C_12,	/* Control reg. starting at position 12 */
+	D20_20, /* 20 bit displacement starting at 20 */
 	D_20,	/* Displacement starting at position 20 */
 	D_36,	/* Displacement starting at position 36 */
-	D20_20,	/* 20 bit displacement starting at 20 */
+	F_8,	/* FPR starting at position 8 */
+	F_12,	/* FPR starting at position 12 */
+	F_16,	/* FPR starting at position 16 */
+	F_24,	/* FPR starting at position 24 */
+	F_28,	/* FPR starting at position 28 */
+	F_32,	/* FPR starting at position 32 */
+	I8_8,	/* 8 bit signed value starting at 8 */
+	I8_32,	/* 8 bit signed value starting at 32 */
+	I16_16, /* 16 bit signed value starting at 16 */
+	I16_32, /* 16 bit signed value starting at 32 */
+	I32_16, /* 32 bit signed value starting at 16 */
+	J12_12, /* 12 bit PC relative offset at 12 */
+	J16_16, /* 16 bit PC relative offset at 16 */
+	J16_32, /* 16 bit PC relative offset at 32 */
+	J24_24, /* 24 bit PC relative offset at 24 */
+	J32_16, /* 32 bit PC relative offset at 16 */
 	L4_8,	/* 4 bit length starting at position 8 */
 	L4_12,	/* 4 bit length starting at position 12 */
 	L8_8,	/* 8 bit length starting at position 8 */
+	R_8,	/* GPR starting at position 8 */
+	R_12,	/* GPR starting at position 12 */
+	R_16,	/* GPR starting at position 16 */
+	R_24,	/* GPR starting at position 24 */
+	R_28,	/* GPR starting at position 28 */
 	U4_8,	/* 4 bit unsigned value starting at 8 */
 	U4_12,	/* 4 bit unsigned value starting at 12 */
 	U4_16,	/* 4 bit unsigned value starting at 16 */
@@ -78,1651 +117,226 @@ enum {
 	U8_8,	/* 8 bit unsigned value starting at 8 */
 	U8_16,	/* 8 bit unsigned value starting at 16 */
 	U8_24,	/* 8 bit unsigned value starting at 24 */
+	U8_28,	/* 8 bit unsigned value starting at 28 */
 	U8_32,	/* 8 bit unsigned value starting at 32 */
-	I8_8,	/* 8 bit signed value starting at 8 */
-	I8_16,	/* 8 bit signed value starting at 16 */
-	I8_24,	/* 8 bit signed value starting at 24 */
-	I8_32,	/* 8 bit signed value starting at 32 */
-	J12_12, /* PC relative offset at 12 */
-	I16_16,	/* 16 bit signed value starting at 16 */
-	I16_32,	/* 32 bit signed value starting at 16 */
-	U16_16,	/* 16 bit unsigned value starting at 16 */
-	U16_32,	/* 32 bit unsigned value starting at 16 */
-	J16_16,	/* PC relative jump offset at 16 */
-	J16_32, /* PC relative offset at 16 */
-	I24_24, /* 24 bit signed value starting at 24 */
-	J32_16,	/* PC relative long offset at 16 */
-	I32_16,	/* 32 bit signed value starting at 16 */
-	U32_16,	/* 32 bit unsigned value starting at 16 */
-	M_16,	/* 4 bit optional mask starting at 16 */
-	M_20,	/* 4 bit optional mask starting at 20 */
-	M_24,	/* 4 bit optional mask starting at 24 */
-	M_28,	/* 4 bit optional mask starting at 28 */
-	M_32,	/* 4 bit optional mask starting at 32 */
-	RO_28,	/* optional GPR starting at position 28 */
-};
-
-/*
- * Enumeration of the different instruction formats.
- * For details consult the principles of operation.
- */
-enum {
-	INSTR_INVALID,
-	INSTR_E,
-	INSTR_IE_UU,
-	INSTR_MII_UPI,
-	INSTR_RIE_R0IU, INSTR_RIE_R0UU, INSTR_RIE_RRP, INSTR_RIE_RRPU,
-	INSTR_RIE_RRUUU, INSTR_RIE_RUPI, INSTR_RIE_RUPU, INSTR_RIE_RRI0,
-	INSTR_RIL_RI, INSTR_RIL_RP, INSTR_RIL_RU, INSTR_RIL_UP,
-	INSTR_RIS_R0RDU, INSTR_RIS_R0UU, INSTR_RIS_RURDI, INSTR_RIS_RURDU,
-	INSTR_RI_RI, INSTR_RI_RP, INSTR_RI_RU, INSTR_RI_UP,
-	INSTR_RRE_00, INSTR_RRE_0R, INSTR_RRE_AA, INSTR_RRE_AR, INSTR_RRE_F0,
-	INSTR_RRE_FF, INSTR_RRE_FR, INSTR_RRE_R0, INSTR_RRE_RA, INSTR_RRE_RF,
-	INSTR_RRE_RR, INSTR_RRE_RR_OPT,
-	INSTR_RRF_0UFF, INSTR_RRF_F0FF, INSTR_RRF_F0FF2, INSTR_RRF_F0FR,
-	INSTR_RRF_FFRU, INSTR_RRF_FUFF, INSTR_RRF_FUFF2, INSTR_RRF_M0RR,
-	INSTR_RRF_R0RR,	INSTR_RRF_R0RR2, INSTR_RRF_RMRR, INSTR_RRF_RURR,
-	INSTR_RRF_U0FF,	INSTR_RRF_U0RF, INSTR_RRF_U0RR, INSTR_RRF_UUFF,
-	INSTR_RRF_UUFR, INSTR_RRF_UURF,
-	INSTR_RRR_F0FF, INSTR_RRS_RRRDU,
-	INSTR_RR_FF, INSTR_RR_R0, INSTR_RR_RR, INSTR_RR_U0, INSTR_RR_UR,
-	INSTR_RSE_CCRD, INSTR_RSE_RRRD, INSTR_RSE_RURD,
-	INSTR_RSI_RRP,
-	INSTR_RSL_LRDFU, INSTR_RSL_R0RD,
-	INSTR_RSY_AARD, INSTR_RSY_CCRD, INSTR_RSY_RRRD, INSTR_RSY_RURD,
-	INSTR_RSY_RDRM, INSTR_RSY_RMRD,
-	INSTR_RS_AARD, INSTR_RS_CCRD, INSTR_RS_R0RD, INSTR_RS_RRRD,
-	INSTR_RS_RURD,
-	INSTR_RXE_FRRD, INSTR_RXE_RRRD, INSTR_RXE_RRRDM,
-	INSTR_RXF_FRRDF,
-	INSTR_RXY_FRRD, INSTR_RXY_RRRD, INSTR_RXY_URRD,
-	INSTR_RX_FRRD, INSTR_RX_RRRD, INSTR_RX_URRD,
-	INSTR_SIL_RDI, INSTR_SIL_RDU,
-	INSTR_SIY_IRD, INSTR_SIY_URD,
-	INSTR_SI_URD,
-	INSTR_SMI_U0RDP,
-	INSTR_SSE_RDRD,
-	INSTR_SSF_RRDRD, INSTR_SSF_RRDRD2,
-	INSTR_SS_L0RDRD, INSTR_SS_LIRDRD, INSTR_SS_LLRDRD, INSTR_SS_RRRDRD,
-	INSTR_SS_RRRDRD2, INSTR_SS_RRRDRD3,
-	INSTR_S_00, INSTR_S_RD,
-	INSTR_VRI_V0IM, INSTR_VRI_V0I0, INSTR_VRI_V0IIM, INSTR_VRI_VVIM,
-	INSTR_VRI_VVV0IM, INSTR_VRI_VVV0I0, INSTR_VRI_VVIMM,
-	INSTR_VRR_VV00MMM, INSTR_VRR_VV000MM, INSTR_VRR_VV0000M,
-	INSTR_VRR_VV00000, INSTR_VRR_VVV0M0M, INSTR_VRR_VV00M0M,
-	INSTR_VRR_VVV000M, INSTR_VRR_VVV000V, INSTR_VRR_VVV0000,
-	INSTR_VRR_VVV0MMM, INSTR_VRR_VVV00MM, INSTR_VRR_VVVMM0V,
-	INSTR_VRR_VVVM0MV, INSTR_VRR_VVVM00V, INSTR_VRR_VRR0000,
-	INSTR_VRS_VVRDM, INSTR_VRS_VVRD0, INSTR_VRS_VRRDM, INSTR_VRS_VRRD0,
-	INSTR_VRS_RVRDM,
-	INSTR_VRV_VVRDM, INSTR_VRV_VWRDM,
-	INSTR_VRX_VRRDM, INSTR_VRX_VRRD0,
+	U12_16, /* 12 bit unsigned value starting at 16 */
+	U16_16, /* 16 bit unsigned value starting at 16 */
+	U16_32, /* 16 bit unsigned value starting at 32 */
+	U32_16, /* 32 bit unsigned value starting at 16 */
+	VX_12,	/* Vector index register starting at position 12 */
+	V_8,	/* Vector reg. starting at position 8 */
+	V_12,	/* Vector reg. starting at position 12 */
+	V_16,	/* Vector reg. starting at position 16 */
+	V_32,	/* Vector reg. starting at position 32 */
+	X_12,	/* Index register starting at position 12 */
 };
 
-static const struct s390_operand operands[] =
-{
-	[UNUSED]  = { 0, 0, 0 },
-	[R_8]	 = {  4,  8, OPERAND_GPR },
-	[R_12]	 = {  4, 12, OPERAND_GPR },
-	[R_16]	 = {  4, 16, OPERAND_GPR },
-	[R_20]	 = {  4, 20, OPERAND_GPR },
-	[R_24]	 = {  4, 24, OPERAND_GPR },
-	[R_28]	 = {  4, 28, OPERAND_GPR },
-	[R_32]	 = {  4, 32, OPERAND_GPR },
-	[F_8]	 = {  4,  8, OPERAND_FPR },
-	[F_12]	 = {  4, 12, OPERAND_FPR },
-	[F_16]	 = {  4, 16, OPERAND_FPR },
-	[F_20]	 = {  4, 16, OPERAND_FPR },
-	[F_24]	 = {  4, 24, OPERAND_FPR },
-	[F_28]	 = {  4, 28, OPERAND_FPR },
-	[F_32]	 = {  4, 32, OPERAND_FPR },
+static const struct s390_operand operands[] = {
+	[UNUSED] = {  0,  0, 0 },
 	[A_8]	 = {  4,  8, OPERAND_AR },
 	[A_12]	 = {  4, 12, OPERAND_AR },
 	[A_24]	 = {  4, 24, OPERAND_AR },
 	[A_28]	 = {  4, 28, OPERAND_AR },
-	[C_8]	 = {  4,  8, OPERAND_CR },
-	[C_12]	 = {  4, 12, OPERAND_CR },
-	[V_8]	 = {  4,  8, OPERAND_VR },
-	[V_12]	 = {  4, 12, OPERAND_VR },
-	[V_16]	 = {  4, 16, OPERAND_VR },
-	[V_32]	 = {  4, 32, OPERAND_VR },
-	[W_12]	 = {  4, 12, OPERAND_INDEX | OPERAND_VR },
 	[B_16]	 = {  4, 16, OPERAND_BASE | OPERAND_GPR },
 	[B_32]	 = {  4, 32, OPERAND_BASE | OPERAND_GPR },
-	[X_12]	 = {  4, 12, OPERAND_INDEX | OPERAND_GPR },
+	[C_8]	 = {  4,  8, OPERAND_CR },
+	[C_12]	 = {  4, 12, OPERAND_CR },
+	[D20_20] = { 20, 20, OPERAND_DISP | OPERAND_SIGNED },
 	[D_20]	 = { 12, 20, OPERAND_DISP },
 	[D_36]	 = { 12, 36, OPERAND_DISP },
-	[D20_20] = { 20, 20, OPERAND_DISP | OPERAND_SIGNED },
+	[F_8]	 = {  4,  8, OPERAND_FPR },
+	[F_12]	 = {  4, 12, OPERAND_FPR },
+	[F_16]	 = {  4, 16, OPERAND_FPR },
+	[F_24]	 = {  4, 24, OPERAND_FPR },
+	[F_28]	 = {  4, 28, OPERAND_FPR },
+	[F_32]	 = {  4, 32, OPERAND_FPR },
+	[I8_8]	 = {  8,  8, OPERAND_SIGNED },
+	[I8_32]	 = {  8, 32, OPERAND_SIGNED },
+	[I16_16] = { 16, 16, OPERAND_SIGNED },
+	[I16_32] = { 16, 32, OPERAND_SIGNED },
+	[I32_16] = { 32, 16, OPERAND_SIGNED },
+	[J12_12] = { 12, 12, OPERAND_PCREL },
+	[J16_16] = { 16, 16, OPERAND_PCREL },
+	[J16_32] = { 16, 32, OPERAND_PCREL },
+	[J24_24] = { 24, 24, OPERAND_PCREL },
+	[J32_16] = { 32, 16, OPERAND_PCREL },
 	[L4_8]	 = {  4,  8, OPERAND_LENGTH },
-	[L4_12]  = {  4, 12, OPERAND_LENGTH },
+	[L4_12]	 = {  4, 12, OPERAND_LENGTH },
 	[L8_8]	 = {  8,  8, OPERAND_LENGTH },
+	[R_8]	 = {  4,  8, OPERAND_GPR },
+	[R_12]	 = {  4, 12, OPERAND_GPR },
+	[R_16]	 = {  4, 16, OPERAND_GPR },
+	[R_24]	 = {  4, 24, OPERAND_GPR },
+	[R_28]	 = {  4, 28, OPERAND_GPR },
 	[U4_8]	 = {  4,  8, 0 },
-	[U4_12]  = {  4, 12, 0 },
-	[U4_16]  = {  4, 16, 0 },
-	[U4_20]  = {  4, 20, 0 },
-	[U4_24]  = {  4, 24, 0 },
-	[U4_28]  = {  4, 28, 0 },
-	[U4_32]  = {  4, 32, 0 },
-	[U4_36]  = {  4, 36, 0 },
+	[U4_12]	 = {  4, 12, 0 },
+	[U4_16]	 = {  4, 16, 0 },
+	[U4_20]	 = {  4, 20, 0 },
+	[U4_24]	 = {  4, 24, 0 },
+	[U4_28]	 = {  4, 28, 0 },
+	[U4_32]	 = {  4, 32, 0 },
+	[U4_36]	 = {  4, 36, 0 },
 	[U8_8]	 = {  8,  8, 0 },
-	[U8_16]  = {  8, 16, 0 },
-	[U8_24]  = {  8, 24, 0 },
-	[U8_32]  = {  8, 32, 0 },
-	[J12_12] = { 12, 12, OPERAND_PCREL },
-	[I8_8]	 = {  8,  8, OPERAND_SIGNED },
-	[I8_16]  = {  8, 16, OPERAND_SIGNED },
-	[I8_24]  = {  8, 24, OPERAND_SIGNED },
-	[I8_32]  = {  8, 32, OPERAND_SIGNED },
-	[I16_32] = { 16, 32, OPERAND_SIGNED },
-	[I16_16] = { 16, 16, OPERAND_SIGNED },
+	[U8_16]	 = {  8, 16, 0 },
+	[U8_24]	 = {  8, 24, 0 },
+	[U8_28]	 = {  8, 28, 0 },
+	[U8_32]	 = {  8, 32, 0 },
+	[U12_16] = { 12, 16, 0 },
 	[U16_16] = { 16, 16, 0 },
 	[U16_32] = { 16, 32, 0 },
-	[J16_16] = { 16, 16, OPERAND_PCREL },
-	[J16_32] = { 16, 32, OPERAND_PCREL },
-	[I24_24] = { 24, 24, OPERAND_SIGNED },
-	[J32_16] = { 32, 16, OPERAND_PCREL },
-	[I32_16] = { 32, 16, OPERAND_SIGNED },
 	[U32_16] = { 32, 16, 0 },
-	[M_16]	 = {  4, 16, 0 },
-	[M_20]	 = {  4, 20, 0 },
-	[M_24]	 = {  4, 24, 0 },
-	[M_28]	 = {  4, 28, 0 },
-	[M_32]	 = {  4, 32, 0 },
-	[RO_28]  = {  4, 28, OPERAND_GPR }
-};
-
-static const unsigned char formats[][7] = {
-	[INSTR_E]	  = { 0xff, 0,0,0,0,0,0 },
-	[INSTR_IE_UU]	  = { 0xff, U4_24,U4_28,0,0,0,0 },
-	[INSTR_MII_UPI]	  = { 0xff, U4_8,J12_12,I24_24 },
-	[INSTR_RIE_R0IU]  = { 0xff, R_8,I16_16,U4_32,0,0,0 },
-	[INSTR_RIE_R0UU]  = { 0xff, R_8,U16_16,U4_32,0,0,0 },
-	[INSTR_RIE_RRI0]  = { 0xff, R_8,R_12,I16_16,0,0,0 },
-	[INSTR_RIE_RRPU]  = { 0xff, R_8,R_12,U4_32,J16_16,0,0 },
-	[INSTR_RIE_RRP]	  = { 0xff, R_8,R_12,J16_16,0,0,0 },
-	[INSTR_RIE_RRUUU] = { 0xff, R_8,R_12,U8_16,U8_24,U8_32,0 },
-	[INSTR_RIE_RUPI]  = { 0xff, R_8,I8_32,U4_12,J16_16,0,0 },
-	[INSTR_RIE_RUPU]  = { 0xff, R_8,U8_32,U4_12,J16_16,0,0 },
-	[INSTR_RIL_RI]	  = { 0x0f, R_8,I32_16,0,0,0,0 },
-	[INSTR_RIL_RP]	  = { 0x0f, R_8,J32_16,0,0,0,0 },
-	[INSTR_RIL_RU]	  = { 0x0f, R_8,U32_16,0,0,0,0 },
-	[INSTR_RIL_UP]	  = { 0x0f, U4_8,J32_16,0,0,0,0 },
-	[INSTR_RIS_R0RDU] = { 0xff, R_8,U8_32,D_20,B_16,0,0 },
-	[INSTR_RIS_RURDI] = { 0xff, R_8,I8_32,U4_12,D_20,B_16,0 },
-	[INSTR_RIS_RURDU] = { 0xff, R_8,U8_32,U4_12,D_20,B_16,0 },
-	[INSTR_RI_RI]	  = { 0x0f, R_8,I16_16,0,0,0,0 },
-	[INSTR_RI_RP]	  = { 0x0f, R_8,J16_16,0,0,0,0 },
-	[INSTR_RI_RU]	  = { 0x0f, R_8,U16_16,0,0,0,0 },
-	[INSTR_RI_UP]	  = { 0x0f, U4_8,J16_16,0,0,0,0 },
-	[INSTR_RRE_00]	  = { 0xff, 0,0,0,0,0,0 },
-	[INSTR_RRE_0R]	  = { 0xff, R_28,0,0,0,0,0 },
-	[INSTR_RRE_AA]	  = { 0xff, A_24,A_28,0,0,0,0 },
-	[INSTR_RRE_AR]	  = { 0xff, A_24,R_28,0,0,0,0 },
-	[INSTR_RRE_F0]	  = { 0xff, F_24,0,0,0,0,0 },
-	[INSTR_RRE_FF]	  = { 0xff, F_24,F_28,0,0,0,0 },
-	[INSTR_RRE_FR]	  = { 0xff, F_24,R_28,0,0,0,0 },
-	[INSTR_RRE_R0]	  = { 0xff, R_24,0,0,0,0,0 },
-	[INSTR_RRE_RA]	  = { 0xff, R_24,A_28,0,0,0,0 },
-	[INSTR_RRE_RF]	  = { 0xff, R_24,F_28,0,0,0,0 },
-	[INSTR_RRE_RR]	  = { 0xff, R_24,R_28,0,0,0,0 },
-	[INSTR_RRE_RR_OPT]= { 0xff, R_24,RO_28,0,0,0,0 },
-	[INSTR_RRF_0UFF]  = { 0xff, F_24,F_28,U4_20,0,0,0 },
-	[INSTR_RRF_F0FF2] = { 0xff, F_24,F_16,F_28,0,0,0 },
-	[INSTR_RRF_F0FF]  = { 0xff, F_16,F_24,F_28,0,0,0 },
-	[INSTR_RRF_F0FR]  = { 0xff, F_24,F_16,R_28,0,0,0 },
-	[INSTR_RRF_FFRU]  = { 0xff, F_24,F_16,R_28,U4_20,0,0 },
-	[INSTR_RRF_FUFF]  = { 0xff, F_24,F_16,F_28,U4_20,0,0 },
-	[INSTR_RRF_FUFF2] = { 0xff, F_24,F_28,F_16,U4_20,0,0 },
-	[INSTR_RRF_M0RR]  = { 0xff, R_24,R_28,M_16,0,0,0 },
-	[INSTR_RRF_R0RR]  = { 0xff, R_24,R_16,R_28,0,0,0 },
-	[INSTR_RRF_R0RR2] = { 0xff, R_24,R_28,R_16,0,0,0 },
-	[INSTR_RRF_RMRR]  = { 0xff, R_24,R_16,R_28,M_20,0,0 },
-	[INSTR_RRF_RURR]  = { 0xff, R_24,R_28,R_16,U4_20,0,0 },
-	[INSTR_RRF_U0FF]  = { 0xff, F_24,U4_16,F_28,0,0,0 },
-	[INSTR_RRF_U0RF]  = { 0xff, R_24,U4_16,F_28,0,0,0 },
-	[INSTR_RRF_U0RR]  = { 0xff, R_24,R_28,U4_16,0,0,0 },
-	[INSTR_RRF_UUFF]  = { 0xff, F_24,U4_16,F_28,U4_20,0,0 },
-	[INSTR_RRF_UUFR]  = { 0xff, F_24,U4_16,R_28,U4_20,0,0 },
-	[INSTR_RRF_UURF]  = { 0xff, R_24,U4_16,F_28,U4_20,0,0 },
-	[INSTR_RRR_F0FF]  = { 0xff, F_24,F_28,F_16,0,0,0 },
-	[INSTR_RRS_RRRDU] = { 0xff, R_8,R_12,U4_32,D_20,B_16,0 },
-	[INSTR_RR_FF]	  = { 0xff, F_8,F_12,0,0,0,0 },
-	[INSTR_RR_R0]	  = { 0xff, R_8, 0,0,0,0,0 },
-	[INSTR_RR_RR]	  = { 0xff, R_8,R_12,0,0,0,0 },
-	[INSTR_RR_U0]	  = { 0xff, U8_8, 0,0,0,0,0 },
-	[INSTR_RR_UR]	  = { 0xff, U4_8,R_12,0,0,0,0 },
-	[INSTR_RSE_CCRD]  = { 0xff, C_8,C_12,D_20,B_16,0,0 },
-	[INSTR_RSE_RRRD]  = { 0xff, R_8,R_12,D_20,B_16,0,0 },
-	[INSTR_RSE_RURD]  = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
-	[INSTR_RSI_RRP]	  = { 0xff, R_8,R_12,J16_16,0,0,0 },
-	[INSTR_RSL_LRDFU] = { 0xff, F_32,D_20,L4_8,B_16,U4_36,0 },
-	[INSTR_RSL_R0RD]  = { 0xff, D_20,L4_8,B_16,0,0,0 },
-	[INSTR_RSY_AARD]  = { 0xff, A_8,A_12,D20_20,B_16,0,0 },
-	[INSTR_RSY_CCRD]  = { 0xff, C_8,C_12,D20_20,B_16,0,0 },
-	[INSTR_RSY_RDRM]  = { 0xff, R_8,D20_20,B_16,U4_12,0,0 },
-	[INSTR_RSY_RMRD]  = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
-	[INSTR_RSY_RRRD]  = { 0xff, R_8,R_12,D20_20,B_16,0,0 },
-	[INSTR_RSY_RURD]  = { 0xff, R_8,U4_12,D20_20,B_16,0,0 },
-	[INSTR_RS_AARD]	  = { 0xff, A_8,A_12,D_20,B_16,0,0 },
-	[INSTR_RS_CCRD]	  = { 0xff, C_8,C_12,D_20,B_16,0,0 },
-	[INSTR_RS_R0RD]	  = { 0xff, R_8,D_20,B_16,0,0,0 },
-	[INSTR_RS_RRRD]	  = { 0xff, R_8,R_12,D_20,B_16,0,0 },
-	[INSTR_RS_RURD]	  = { 0xff, R_8,U4_12,D_20,B_16,0,0 },
-	[INSTR_RXE_FRRD]  = { 0xff, F_8,D_20,X_12,B_16,0,0 },
-	[INSTR_RXE_RRRD]  = { 0xff, R_8,D_20,X_12,B_16,0,0 },
-	[INSTR_RXE_RRRDM] = { 0xff, R_8,D_20,X_12,B_16,M_32,0 },
-	[INSTR_RXF_FRRDF] = { 0xff, F_32,F_8,D_20,X_12,B_16,0 },
-	[INSTR_RXY_FRRD]  = { 0xff, F_8,D20_20,X_12,B_16,0,0 },
-	[INSTR_RXY_RRRD]  = { 0xff, R_8,D20_20,X_12,B_16,0,0 },
-	[INSTR_RXY_URRD]  = { 0xff, U4_8,D20_20,X_12,B_16,0,0 },
-	[INSTR_RX_FRRD]	  = { 0xff, F_8,D_20,X_12,B_16,0,0 },
-	[INSTR_RX_RRRD]	  = { 0xff, R_8,D_20,X_12,B_16,0,0 },
-	[INSTR_RX_URRD]	  = { 0xff, U4_8,D_20,X_12,B_16,0,0 },
-	[INSTR_SIL_RDI]   = { 0xff, D_20,B_16,I16_32,0,0,0 },
-	[INSTR_SIL_RDU]   = { 0xff, D_20,B_16,U16_32,0,0,0 },
-	[INSTR_SIY_IRD]   = { 0xff, D20_20,B_16,I8_8,0,0,0 },
-	[INSTR_SIY_URD]	  = { 0xff, D20_20,B_16,U8_8,0,0,0 },
-	[INSTR_SI_URD]	  = { 0xff, D_20,B_16,U8_8,0,0,0 },
-	[INSTR_SMI_U0RDP] = { 0xff, U4_8,J16_32,D_20,B_16,0,0 },
-	[INSTR_SSE_RDRD]  = { 0xff, D_20,B_16,D_36,B_32,0,0 },
-	[INSTR_SSF_RRDRD] = { 0x0f, D_20,B_16,D_36,B_32,R_8,0 },
-	[INSTR_SSF_RRDRD2]= { 0x0f, R_8,D_20,B_16,D_36,B_32,0 },
-	[INSTR_SS_L0RDRD] = { 0xff, D_20,L8_8,B_16,D_36,B_32,0 },
-	[INSTR_SS_LIRDRD] = { 0xff, D_20,L4_8,B_16,D_36,B_32,U4_12 },
-	[INSTR_SS_LLRDRD] = { 0xff, D_20,L4_8,B_16,D_36,L4_12,B_32 },
-	[INSTR_SS_RRRDRD2]= { 0xff, R_8,D_20,B_16,R_12,D_36,B_32 },
-	[INSTR_SS_RRRDRD3]= { 0xff, R_8,R_12,D_20,B_16,D_36,B_32 },
-	[INSTR_SS_RRRDRD] = { 0xff, D_20,R_8,B_16,D_36,B_32,R_12 },
-	[INSTR_S_00]	  = { 0xff, 0,0,0,0,0,0 },
-	[INSTR_S_RD]	  = { 0xff, D_20,B_16,0,0,0,0 },
-	[INSTR_VRI_V0IM]  = { 0xff, V_8,I16_16,M_32,0,0,0 },
-	[INSTR_VRI_V0I0]  = { 0xff, V_8,I16_16,0,0,0,0 },
-	[INSTR_VRI_V0IIM] = { 0xff, V_8,I8_16,I8_24,M_32,0,0 },
-	[INSTR_VRI_VVIM]  = { 0xff, V_8,I16_16,V_12,M_32,0,0 },
-	[INSTR_VRI_VVV0IM]= { 0xff, V_8,V_12,V_16,I8_24,M_32,0 },
-	[INSTR_VRI_VVV0I0]= { 0xff, V_8,V_12,V_16,I8_24,0,0 },
-	[INSTR_VRI_VVIMM] = { 0xff, V_8,V_12,I16_16,M_32,M_28,0 },
-	[INSTR_VRR_VV00MMM]={ 0xff, V_8,V_12,M_32,M_28,M_24,0 },
-	[INSTR_VRR_VV000MM]={ 0xff, V_8,V_12,M_32,M_28,0,0 },
-	[INSTR_VRR_VV0000M]={ 0xff, V_8,V_12,M_32,0,0,0 },
-	[INSTR_VRR_VV00000]={ 0xff, V_8,V_12,0,0,0,0 },
-	[INSTR_VRR_VVV0M0M]={ 0xff, V_8,V_12,V_16,M_32,M_24,0 },
-	[INSTR_VRR_VV00M0M]={ 0xff, V_8,V_12,M_32,M_24,0,0 },
-	[INSTR_VRR_VVV000M]={ 0xff, V_8,V_12,V_16,M_32,0,0 },
-	[INSTR_VRR_VVV000V]={ 0xff, V_8,V_12,V_16,V_32,0,0 },
-	[INSTR_VRR_VVV0000]={ 0xff, V_8,V_12,V_16,0,0,0 },
-	[INSTR_VRR_VVV0MMM]={ 0xff, V_8,V_12,V_16,M_32,M_28,M_24 },
-	[INSTR_VRR_VVV00MM]={ 0xff, V_8,V_12,V_16,M_32,M_28,0 },
-	[INSTR_VRR_VVVMM0V]={ 0xff, V_8,V_12,V_16,V_32,M_20,M_24 },
-	[INSTR_VRR_VVVM0MV]={ 0xff, V_8,V_12,V_16,V_32,M_28,M_20 },
-	[INSTR_VRR_VVVM00V]={ 0xff, V_8,V_12,V_16,V_32,M_20,0 },
-	[INSTR_VRR_VRR0000]={ 0xff, V_8,R_12,R_16,0,0,0 },
-	[INSTR_VRS_VVRDM] = { 0xff, V_8,V_12,D_20,B_16,M_32,0 },
-	[INSTR_VRS_VVRD0] = { 0xff, V_8,V_12,D_20,B_16,0,0 },
-	[INSTR_VRS_VRRDM] = { 0xff, V_8,R_12,D_20,B_16,M_32,0 },
-	[INSTR_VRS_VRRD0] = { 0xff, V_8,R_12,D_20,B_16,0,0 },
-	[INSTR_VRS_RVRDM] = { 0xff, R_8,V_12,D_20,B_16,M_32,0 },
-	[INSTR_VRV_VVRDM] = { 0xff, V_8,V_12,D_20,B_16,M_32,0 },
-	[INSTR_VRV_VWRDM] = { 0xff, V_8,D_20,W_12,B_16,M_32,0 },
-	[INSTR_VRX_VRRDM] = { 0xff, V_8,D_20,X_12,B_16,M_32,0 },
-	[INSTR_VRX_VRRD0] = { 0xff, V_8,D_20,X_12,B_16,0,0 },
-};
-
-enum {
-	LONG_INSN_ALGHSIK,
-	LONG_INSN_ALHHHR,
-	LONG_INSN_ALHHLR,
-	LONG_INSN_ALHSIK,
-	LONG_INSN_ALSIHN,
-	LONG_INSN_CDFBRA,
-	LONG_INSN_CDGBRA,
-	LONG_INSN_CDGTRA,
-	LONG_INSN_CDLFBR,
-	LONG_INSN_CDLFTR,
-	LONG_INSN_CDLGBR,
-	LONG_INSN_CDLGTR,
-	LONG_INSN_CEFBRA,
-	LONG_INSN_CEGBRA,
-	LONG_INSN_CELFBR,
-	LONG_INSN_CELGBR,
-	LONG_INSN_CFDBRA,
-	LONG_INSN_CFEBRA,
-	LONG_INSN_CFXBRA,
-	LONG_INSN_CGDBRA,
-	LONG_INSN_CGDTRA,
-	LONG_INSN_CGEBRA,
-	LONG_INSN_CGXBRA,
-	LONG_INSN_CGXTRA,
-	LONG_INSN_CLFDBR,
-	LONG_INSN_CLFDTR,
-	LONG_INSN_CLFEBR,
-	LONG_INSN_CLFHSI,
-	LONG_INSN_CLFXBR,
-	LONG_INSN_CLFXTR,
-	LONG_INSN_CLGDBR,
-	LONG_INSN_CLGDTR,
-	LONG_INSN_CLGEBR,
-	LONG_INSN_CLGFRL,
-	LONG_INSN_CLGHRL,
-	LONG_INSN_CLGHSI,
-	LONG_INSN_CLGXBR,
-	LONG_INSN_CLGXTR,
-	LONG_INSN_CLHHSI,
-	LONG_INSN_CXFBRA,
-	LONG_INSN_CXGBRA,
-	LONG_INSN_CXGTRA,
-	LONG_INSN_CXLFBR,
-	LONG_INSN_CXLFTR,
-	LONG_INSN_CXLGBR,
-	LONG_INSN_CXLGTR,
-	LONG_INSN_FIDBRA,
-	LONG_INSN_FIEBRA,
-	LONG_INSN_FIXBRA,
-	LONG_INSN_LDXBRA,
-	LONG_INSN_LEDBRA,
-	LONG_INSN_LEXBRA,
-	LONG_INSN_LLGFAT,
-	LONG_INSN_LLGFRL,
-	LONG_INSN_LLGHRL,
-	LONG_INSN_LLGTAT,
-	LONG_INSN_POPCNT,
-	LONG_INSN_RIEMIT,
-	LONG_INSN_RINEXT,
-	LONG_INSN_RISBGN,
-	LONG_INSN_RISBHG,
-	LONG_INSN_RISBLG,
-	LONG_INSN_SLHHHR,
-	LONG_INSN_SLHHLR,
-	LONG_INSN_TABORT,
-	LONG_INSN_TBEGIN,
-	LONG_INSN_TBEGINC,
-	LONG_INSN_PCISTG,
-	LONG_INSN_MPCIFC,
-	LONG_INSN_STPCIFC,
-	LONG_INSN_PCISTB,
-	LONG_INSN_VPOPCT,
-	LONG_INSN_VERLLV,
-	LONG_INSN_VESRAV,
-	LONG_INSN_VESRLV,
-	LONG_INSN_VSBCBI,
-	LONG_INSN_STCCTM
-};
-
-static char *long_insn_name[] = {
-	[LONG_INSN_ALGHSIK] = "alghsik",
-	[LONG_INSN_ALHHHR] = "alhhhr",
-	[LONG_INSN_ALHHLR] = "alhhlr",
-	[LONG_INSN_ALHSIK] = "alhsik",
-	[LONG_INSN_ALSIHN] = "alsihn",
-	[LONG_INSN_CDFBRA] = "cdfbra",
-	[LONG_INSN_CDGBRA] = "cdgbra",
-	[LONG_INSN_CDGTRA] = "cdgtra",
-	[LONG_INSN_CDLFBR] = "cdlfbr",
-	[LONG_INSN_CDLFTR] = "cdlftr",
-	[LONG_INSN_CDLGBR] = "cdlgbr",
-	[LONG_INSN_CDLGTR] = "cdlgtr",
-	[LONG_INSN_CEFBRA] = "cefbra",
-	[LONG_INSN_CEGBRA] = "cegbra",
-	[LONG_INSN_CELFBR] = "celfbr",
-	[LONG_INSN_CELGBR] = "celgbr",
-	[LONG_INSN_CFDBRA] = "cfdbra",
-	[LONG_INSN_CFEBRA] = "cfebra",
-	[LONG_INSN_CFXBRA] = "cfxbra",
-	[LONG_INSN_CGDBRA] = "cgdbra",
-	[LONG_INSN_CGDTRA] = "cgdtra",
-	[LONG_INSN_CGEBRA] = "cgebra",
-	[LONG_INSN_CGXBRA] = "cgxbra",
-	[LONG_INSN_CGXTRA] = "cgxtra",
-	[LONG_INSN_CLFDBR] = "clfdbr",
-	[LONG_INSN_CLFDTR] = "clfdtr",
-	[LONG_INSN_CLFEBR] = "clfebr",
-	[LONG_INSN_CLFHSI] = "clfhsi",
-	[LONG_INSN_CLFXBR] = "clfxbr",
-	[LONG_INSN_CLFXTR] = "clfxtr",
-	[LONG_INSN_CLGDBR] = "clgdbr",
-	[LONG_INSN_CLGDTR] = "clgdtr",
-	[LONG_INSN_CLGEBR] = "clgebr",
-	[LONG_INSN_CLGFRL] = "clgfrl",
-	[LONG_INSN_CLGHRL] = "clghrl",
-	[LONG_INSN_CLGHSI] = "clghsi",
-	[LONG_INSN_CLGXBR] = "clgxbr",
-	[LONG_INSN_CLGXTR] = "clgxtr",
-	[LONG_INSN_CLHHSI] = "clhhsi",
-	[LONG_INSN_CXFBRA] = "cxfbra",
-	[LONG_INSN_CXGBRA] = "cxgbra",
-	[LONG_INSN_CXGTRA] = "cxgtra",
-	[LONG_INSN_CXLFBR] = "cxlfbr",
-	[LONG_INSN_CXLFTR] = "cxlftr",
-	[LONG_INSN_CXLGBR] = "cxlgbr",
-	[LONG_INSN_CXLGTR] = "cxlgtr",
-	[LONG_INSN_FIDBRA] = "fidbra",
-	[LONG_INSN_FIEBRA] = "fiebra",
-	[LONG_INSN_FIXBRA] = "fixbra",
-	[LONG_INSN_LDXBRA] = "ldxbra",
-	[LONG_INSN_LEDBRA] = "ledbra",
-	[LONG_INSN_LEXBRA] = "lexbra",
-	[LONG_INSN_LLGFAT] = "llgfat",
-	[LONG_INSN_LLGFRL] = "llgfrl",
-	[LONG_INSN_LLGHRL] = "llghrl",
-	[LONG_INSN_LLGTAT] = "llgtat",
-	[LONG_INSN_POPCNT] = "popcnt",
-	[LONG_INSN_RIEMIT] = "riemit",
-	[LONG_INSN_RINEXT] = "rinext",
-	[LONG_INSN_RISBGN] = "risbgn",
-	[LONG_INSN_RISBHG] = "risbhg",
-	[LONG_INSN_RISBLG] = "risblg",
-	[LONG_INSN_SLHHHR] = "slhhhr",
-	[LONG_INSN_SLHHLR] = "slhhlr",
-	[LONG_INSN_TABORT] = "tabort",
-	[LONG_INSN_TBEGIN] = "tbegin",
-	[LONG_INSN_TBEGINC] = "tbeginc",
-	[LONG_INSN_PCISTG] = "pcistg",
-	[LONG_INSN_MPCIFC] = "mpcifc",
-	[LONG_INSN_STPCIFC] = "stpcifc",
-	[LONG_INSN_PCISTB] = "pcistb",
-	[LONG_INSN_VPOPCT] = "vpopct",
-	[LONG_INSN_VERLLV] = "verllv",
-	[LONG_INSN_VESRAV] = "vesrav",
-	[LONG_INSN_VESRLV] = "vesrlv",
-	[LONG_INSN_VSBCBI] = "vsbcbi",
-	[LONG_INSN_STCCTM] = "stcctm",
-};
-
-static struct s390_insn opcode[] = {
-	{ "bprp", 0xc5, INSTR_MII_UPI },
-	{ "bpp", 0xc7, INSTR_SMI_U0RDP },
-	{ "trtr", 0xd0, INSTR_SS_L0RDRD },
-	{ "lmd", 0xef, INSTR_SS_RRRDRD3 },
-	{ "spm", 0x04, INSTR_RR_R0 },
-	{ "balr", 0x05, INSTR_RR_RR },
-	{ "bctr", 0x06, INSTR_RR_RR },
-	{ "bcr", 0x07, INSTR_RR_UR },
-	{ "svc", 0x0a, INSTR_RR_U0 },
-	{ "bsm", 0x0b, INSTR_RR_RR },
-	{ "bassm", 0x0c, INSTR_RR_RR },
-	{ "basr", 0x0d, INSTR_RR_RR },
-	{ "mvcl", 0x0e, INSTR_RR_RR },
-	{ "clcl", 0x0f, INSTR_RR_RR },
-	{ "lpr", 0x10, INSTR_RR_RR },
-	{ "lnr", 0x11, INSTR_RR_RR },
-	{ "ltr", 0x12, INSTR_RR_RR },
-	{ "lcr", 0x13, INSTR_RR_RR },
-	{ "nr", 0x14, INSTR_RR_RR },
-	{ "clr", 0x15, INSTR_RR_RR },
-	{ "or", 0x16, INSTR_RR_RR },
-	{ "xr", 0x17, INSTR_RR_RR },
-	{ "lr", 0x18, INSTR_RR_RR },
-	{ "cr", 0x19, INSTR_RR_RR },
-	{ "ar", 0x1a, INSTR_RR_RR },
-	{ "sr", 0x1b, INSTR_RR_RR },
-	{ "mr", 0x1c, INSTR_RR_RR },
-	{ "dr", 0x1d, INSTR_RR_RR },
-	{ "alr", 0x1e, INSTR_RR_RR },
-	{ "slr", 0x1f, INSTR_RR_RR },
-	{ "lpdr", 0x20, INSTR_RR_FF },
-	{ "lndr", 0x21, INSTR_RR_FF },
-	{ "ltdr", 0x22, INSTR_RR_FF },
-	{ "lcdr", 0x23, INSTR_RR_FF },
-	{ "hdr", 0x24, INSTR_RR_FF },
-	{ "ldxr", 0x25, INSTR_RR_FF },
-	{ "mxr", 0x26, INSTR_RR_FF },
-	{ "mxdr", 0x27, INSTR_RR_FF },
-	{ "ldr", 0x28, INSTR_RR_FF },
-	{ "cdr", 0x29, INSTR_RR_FF },
-	{ "adr", 0x2a, INSTR_RR_FF },
-	{ "sdr", 0x2b, INSTR_RR_FF },
-	{ "mdr", 0x2c, INSTR_RR_FF },
-	{ "ddr", 0x2d, INSTR_RR_FF },
-	{ "awr", 0x2e, INSTR_RR_FF },
-	{ "swr", 0x2f, INSTR_RR_FF },
-	{ "lper", 0x30, INSTR_RR_FF },
-	{ "lner", 0x31, INSTR_RR_FF },
-	{ "lter", 0x32, INSTR_RR_FF },
-	{ "lcer", 0x33, INSTR_RR_FF },
-	{ "her", 0x34, INSTR_RR_FF },
-	{ "ledr", 0x35, INSTR_RR_FF },
-	{ "axr", 0x36, INSTR_RR_FF },
-	{ "sxr", 0x37, INSTR_RR_FF },
-	{ "ler", 0x38, INSTR_RR_FF },
-	{ "cer", 0x39, INSTR_RR_FF },
-	{ "aer", 0x3a, INSTR_RR_FF },
-	{ "ser", 0x3b, INSTR_RR_FF },
-	{ "mder", 0x3c, INSTR_RR_FF },
-	{ "der", 0x3d, INSTR_RR_FF },
-	{ "aur", 0x3e, INSTR_RR_FF },
-	{ "sur", 0x3f, INSTR_RR_FF },
-	{ "sth", 0x40, INSTR_RX_RRRD },
-	{ "la", 0x41, INSTR_RX_RRRD },
-	{ "stc", 0x42, INSTR_RX_RRRD },
-	{ "ic", 0x43, INSTR_RX_RRRD },
-	{ "ex", 0x44, INSTR_RX_RRRD },
-	{ "bal", 0x45, INSTR_RX_RRRD },
-	{ "bct", 0x46, INSTR_RX_RRRD },
-	{ "bc", 0x47, INSTR_RX_URRD },
-	{ "lh", 0x48, INSTR_RX_RRRD },
-	{ "ch", 0x49, INSTR_RX_RRRD },
-	{ "ah", 0x4a, INSTR_RX_RRRD },
-	{ "sh", 0x4b, INSTR_RX_RRRD },
-	{ "mh", 0x4c, INSTR_RX_RRRD },
-	{ "bas", 0x4d, INSTR_RX_RRRD },
-	{ "cvd", 0x4e, INSTR_RX_RRRD },
-	{ "cvb", 0x4f, INSTR_RX_RRRD },
-	{ "st", 0x50, INSTR_RX_RRRD },
-	{ "lae", 0x51, INSTR_RX_RRRD },
-	{ "n", 0x54, INSTR_RX_RRRD },
-	{ "cl", 0x55, INSTR_RX_RRRD },
-	{ "o", 0x56, INSTR_RX_RRRD },
-	{ "x", 0x57, INSTR_RX_RRRD },
-	{ "l", 0x58, INSTR_RX_RRRD },
-	{ "c", 0x59, INSTR_RX_RRRD },
-	{ "a", 0x5a, INSTR_RX_RRRD },
-	{ "s", 0x5b, INSTR_RX_RRRD },
-	{ "m", 0x5c, INSTR_RX_RRRD },
-	{ "d", 0x5d, INSTR_RX_RRRD },
-	{ "al", 0x5e, INSTR_RX_RRRD },
-	{ "sl", 0x5f, INSTR_RX_RRRD },
-	{ "std", 0x60, INSTR_RX_FRRD },
-	{ "mxd", 0x67, INSTR_RX_FRRD },
-	{ "ld", 0x68, INSTR_RX_FRRD },
-	{ "cd", 0x69, INSTR_RX_FRRD },
-	{ "ad", 0x6a, INSTR_RX_FRRD },
-	{ "sd", 0x6b, INSTR_RX_FRRD },
-	{ "md", 0x6c, INSTR_RX_FRRD },
-	{ "dd", 0x6d, INSTR_RX_FRRD },
-	{ "aw", 0x6e, INSTR_RX_FRRD },
-	{ "sw", 0x6f, INSTR_RX_FRRD },
-	{ "ste", 0x70, INSTR_RX_FRRD },
-	{ "ms", 0x71, INSTR_RX_RRRD },
-	{ "le", 0x78, INSTR_RX_FRRD },
-	{ "ce", 0x79, INSTR_RX_FRRD },
-	{ "ae", 0x7a, INSTR_RX_FRRD },
-	{ "se", 0x7b, INSTR_RX_FRRD },
-	{ "mde", 0x7c, INSTR_RX_FRRD },
-	{ "de", 0x7d, INSTR_RX_FRRD },
-	{ "au", 0x7e, INSTR_RX_FRRD },
-	{ "su", 0x7f, INSTR_RX_FRRD },
-	{ "ssm", 0x80, INSTR_S_RD },
-	{ "lpsw", 0x82, INSTR_S_RD },
-	{ "diag", 0x83, INSTR_RS_RRRD },
-	{ "brxh", 0x84, INSTR_RSI_RRP },
-	{ "brxle", 0x85, INSTR_RSI_RRP },
-	{ "bxh", 0x86, INSTR_RS_RRRD },
-	{ "bxle", 0x87, INSTR_RS_RRRD },
-	{ "srl", 0x88, INSTR_RS_R0RD },
-	{ "sll", 0x89, INSTR_RS_R0RD },
-	{ "sra", 0x8a, INSTR_RS_R0RD },
-	{ "sla", 0x8b, INSTR_RS_R0RD },
-	{ "srdl", 0x8c, INSTR_RS_R0RD },
-	{ "sldl", 0x8d, INSTR_RS_R0RD },
-	{ "srda", 0x8e, INSTR_RS_R0RD },
-	{ "slda", 0x8f, INSTR_RS_R0RD },
-	{ "stm", 0x90, INSTR_RS_RRRD },
-	{ "tm", 0x91, INSTR_SI_URD },
-	{ "mvi", 0x92, INSTR_SI_URD },
-	{ "ts", 0x93, INSTR_S_RD },
-	{ "ni", 0x94, INSTR_SI_URD },
-	{ "cli", 0x95, INSTR_SI_URD },
-	{ "oi", 0x96, INSTR_SI_URD },
-	{ "xi", 0x97, INSTR_SI_URD },
-	{ "lm", 0x98, INSTR_RS_RRRD },
-	{ "trace", 0x99, INSTR_RS_RRRD },
-	{ "lam", 0x9a, INSTR_RS_AARD },
-	{ "stam", 0x9b, INSTR_RS_AARD },
-	{ "mvcle", 0xa8, INSTR_RS_RRRD },
-	{ "clcle", 0xa9, INSTR_RS_RRRD },
-	{ "stnsm", 0xac, INSTR_SI_URD },
-	{ "stosm", 0xad, INSTR_SI_URD },
-	{ "sigp", 0xae, INSTR_RS_RRRD },
-	{ "mc", 0xaf, INSTR_SI_URD },
-	{ "lra", 0xb1, INSTR_RX_RRRD },
-	{ "stctl", 0xb6, INSTR_RS_CCRD },
-	{ "lctl", 0xb7, INSTR_RS_CCRD },
-	{ "cs", 0xba, INSTR_RS_RRRD },
-	{ "cds", 0xbb, INSTR_RS_RRRD },
-	{ "clm", 0xbd, INSTR_RS_RURD },
-	{ "stcm", 0xbe, INSTR_RS_RURD },
-	{ "icm", 0xbf, INSTR_RS_RURD },
-	{ "mvn", 0xd1, INSTR_SS_L0RDRD },
-	{ "mvc", 0xd2, INSTR_SS_L0RDRD },
-	{ "mvz", 0xd3, INSTR_SS_L0RDRD },
-	{ "nc", 0xd4, INSTR_SS_L0RDRD },
-	{ "clc", 0xd5, INSTR_SS_L0RDRD },
-	{ "oc", 0xd6, INSTR_SS_L0RDRD },
-	{ "xc", 0xd7, INSTR_SS_L0RDRD },
-	{ "mvck", 0xd9, INSTR_SS_RRRDRD },
-	{ "mvcp", 0xda, INSTR_SS_RRRDRD },
-	{ "mvcs", 0xdb, INSTR_SS_RRRDRD },
-	{ "tr", 0xdc, INSTR_SS_L0RDRD },
-	{ "trt", 0xdd, INSTR_SS_L0RDRD },
-	{ "ed", 0xde, INSTR_SS_L0RDRD },
-	{ "edmk", 0xdf, INSTR_SS_L0RDRD },
-	{ "pku", 0xe1, INSTR_SS_L0RDRD },
-	{ "unpku", 0xe2, INSTR_SS_L0RDRD },
-	{ "mvcin", 0xe8, INSTR_SS_L0RDRD },
-	{ "pka", 0xe9, INSTR_SS_L0RDRD },
-	{ "unpka", 0xea, INSTR_SS_L0RDRD },
-	{ "plo", 0xee, INSTR_SS_RRRDRD2 },
-	{ "srp", 0xf0, INSTR_SS_LIRDRD },
-	{ "mvo", 0xf1, INSTR_SS_LLRDRD },
-	{ "pack", 0xf2, INSTR_SS_LLRDRD },
-	{ "unpk", 0xf3, INSTR_SS_LLRDRD },
-	{ "zap", 0xf8, INSTR_SS_LLRDRD },
-	{ "cp", 0xf9, INSTR_SS_LLRDRD },
-	{ "ap", 0xfa, INSTR_SS_LLRDRD },
-	{ "sp", 0xfb, INSTR_SS_LLRDRD },
-	{ "mp", 0xfc, INSTR_SS_LLRDRD },
-	{ "dp", 0xfd, INSTR_SS_LLRDRD },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_01[] = {
-	{ "ptff", 0x04, INSTR_E },
-	{ "pfpo", 0x0a, INSTR_E },
-	{ "sam64", 0x0e, INSTR_E },
-	{ "pr", 0x01, INSTR_E },
-	{ "upt", 0x02, INSTR_E },
-	{ "sckpf", 0x07, INSTR_E },
-	{ "tam", 0x0b, INSTR_E },
-	{ "sam24", 0x0c, INSTR_E },
-	{ "sam31", 0x0d, INSTR_E },
-	{ "trap2", 0xff, INSTR_E },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_a5[] = {
-	{ "iihh", 0x00, INSTR_RI_RU },
-	{ "iihl", 0x01, INSTR_RI_RU },
-	{ "iilh", 0x02, INSTR_RI_RU },
-	{ "iill", 0x03, INSTR_RI_RU },
-	{ "nihh", 0x04, INSTR_RI_RU },
-	{ "nihl", 0x05, INSTR_RI_RU },
-	{ "nilh", 0x06, INSTR_RI_RU },
-	{ "nill", 0x07, INSTR_RI_RU },
-	{ "oihh", 0x08, INSTR_RI_RU },
-	{ "oihl", 0x09, INSTR_RI_RU },
-	{ "oilh", 0x0a, INSTR_RI_RU },
-	{ "oill", 0x0b, INSTR_RI_RU },
-	{ "llihh", 0x0c, INSTR_RI_RU },
-	{ "llihl", 0x0d, INSTR_RI_RU },
-	{ "llilh", 0x0e, INSTR_RI_RU },
-	{ "llill", 0x0f, INSTR_RI_RU },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_a7[] = {
-	{ "tmhh", 0x02, INSTR_RI_RU },
-	{ "tmhl", 0x03, INSTR_RI_RU },
-	{ "brctg", 0x07, INSTR_RI_RP },
-	{ "lghi", 0x09, INSTR_RI_RI },
-	{ "aghi", 0x0b, INSTR_RI_RI },
-	{ "mghi", 0x0d, INSTR_RI_RI },
-	{ "cghi", 0x0f, INSTR_RI_RI },
-	{ "tmlh", 0x00, INSTR_RI_RU },
-	{ "tmll", 0x01, INSTR_RI_RU },
-	{ "brc", 0x04, INSTR_RI_UP },
-	{ "bras", 0x05, INSTR_RI_RP },
-	{ "brct", 0x06, INSTR_RI_RP },
-	{ "lhi", 0x08, INSTR_RI_RI },
-	{ "ahi", 0x0a, INSTR_RI_RI },
-	{ "mhi", 0x0c, INSTR_RI_RI },
-	{ "chi", 0x0e, INSTR_RI_RI },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_aa[] = {
-	{ { 0, LONG_INSN_RINEXT }, 0x00, INSTR_RI_RI },
-	{ "rion", 0x01, INSTR_RI_RI },
-	{ "tric", 0x02, INSTR_RI_RI },
-	{ "rioff", 0x03, INSTR_RI_RI },
-	{ { 0, LONG_INSN_RIEMIT }, 0x04, INSTR_RI_RI },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_b2[] = {
-	{ "stckf", 0x7c, INSTR_S_RD },
-	{ "lpp", 0x80, INSTR_S_RD },
-	{ "lcctl", 0x84, INSTR_S_RD },
-	{ "lpctl", 0x85, INSTR_S_RD },
-	{ "qsi", 0x86, INSTR_S_RD },
-	{ "lsctl", 0x87, INSTR_S_RD },
-	{ "qctri", 0x8e, INSTR_S_RD },
-	{ "stfle", 0xb0, INSTR_S_RD },
-	{ "lpswe", 0xb2, INSTR_S_RD },
-	{ "srnmb", 0xb8, INSTR_S_RD },
-	{ "srnmt", 0xb9, INSTR_S_RD },
-	{ "lfas", 0xbd, INSTR_S_RD },
-	{ "scctr", 0xe0, INSTR_RRE_RR },
-	{ "spctr", 0xe1, INSTR_RRE_RR },
-	{ "ecctr", 0xe4, INSTR_RRE_RR },
-	{ "epctr", 0xe5, INSTR_RRE_RR },
-	{ "ppa", 0xe8, INSTR_RRF_U0RR },
-	{ "etnd", 0xec, INSTR_RRE_R0 },
-	{ "ecpga", 0xed, INSTR_RRE_RR },
-	{ "tend", 0xf8, INSTR_S_00 },
-	{ "niai", 0xfa, INSTR_IE_UU },
-	{ { 0, LONG_INSN_TABORT }, 0xfc, INSTR_S_RD },
-	{ "stidp", 0x02, INSTR_S_RD },
-	{ "sck", 0x04, INSTR_S_RD },
-	{ "stck", 0x05, INSTR_S_RD },
-	{ "sckc", 0x06, INSTR_S_RD },
-	{ "stckc", 0x07, INSTR_S_RD },
-	{ "spt", 0x08, INSTR_S_RD },
-	{ "stpt", 0x09, INSTR_S_RD },
-	{ "spka", 0x0a, INSTR_S_RD },
-	{ "ipk", 0x0b, INSTR_S_00 },
-	{ "ptlb", 0x0d, INSTR_S_00 },
-	{ "spx", 0x10, INSTR_S_RD },
-	{ "stpx", 0x11, INSTR_S_RD },
-	{ "stap", 0x12, INSTR_S_RD },
-	{ "sie", 0x14, INSTR_S_RD },
-	{ "pc", 0x18, INSTR_S_RD },
-	{ "sac", 0x19, INSTR_S_RD },
-	{ "cfc", 0x1a, INSTR_S_RD },
-	{ "servc", 0x20, INSTR_RRE_RR },
-	{ "ipte", 0x21, INSTR_RRE_RR },
-	{ "ipm", 0x22, INSTR_RRE_R0 },
-	{ "ivsk", 0x23, INSTR_RRE_RR },
-	{ "iac", 0x24, INSTR_RRE_R0 },
-	{ "ssar", 0x25, INSTR_RRE_R0 },
-	{ "epar", 0x26, INSTR_RRE_R0 },
-	{ "esar", 0x27, INSTR_RRE_R0 },
-	{ "pt", 0x28, INSTR_RRE_RR },
-	{ "iske", 0x29, INSTR_RRE_RR },
-	{ "rrbe", 0x2a, INSTR_RRE_RR },
-	{ "sske", 0x2b, INSTR_RRF_M0RR },
-	{ "tb", 0x2c, INSTR_RRE_0R },
-	{ "dxr", 0x2d, INSTR_RRE_FF },
-	{ "pgin", 0x2e, INSTR_RRE_RR },
-	{ "pgout", 0x2f, INSTR_RRE_RR },
-	{ "csch", 0x30, INSTR_S_00 },
-	{ "hsch", 0x31, INSTR_S_00 },
-	{ "msch", 0x32, INSTR_S_RD },
-	{ "ssch", 0x33, INSTR_S_RD },
-	{ "stsch", 0x34, INSTR_S_RD },
-	{ "tsch", 0x35, INSTR_S_RD },
-	{ "tpi", 0x36, INSTR_S_RD },
-	{ "sal", 0x37, INSTR_S_00 },
-	{ "rsch", 0x38, INSTR_S_00 },
-	{ "stcrw", 0x39, INSTR_S_RD },
-	{ "stcps", 0x3a, INSTR_S_RD },
-	{ "rchp", 0x3b, INSTR_S_00 },
-	{ "schm", 0x3c, INSTR_S_00 },
-	{ "bakr", 0x40, INSTR_RRE_RR },
-	{ "cksm", 0x41, INSTR_RRE_RR },
-	{ "sqdr", 0x44, INSTR_RRE_FF },
-	{ "sqer", 0x45, INSTR_RRE_FF },
-	{ "stura", 0x46, INSTR_RRE_RR },
-	{ "msta", 0x47, INSTR_RRE_R0 },
-	{ "palb", 0x48, INSTR_RRE_00 },
-	{ "ereg", 0x49, INSTR_RRE_RR },
-	{ "esta", 0x4a, INSTR_RRE_RR },
-	{ "lura", 0x4b, INSTR_RRE_RR },
-	{ "tar", 0x4c, INSTR_RRE_AR },
-	{ "cpya", 0x4d, INSTR_RRE_AA },
-	{ "sar", 0x4e, INSTR_RRE_AR },
-	{ "ear", 0x4f, INSTR_RRE_RA },
-	{ "csp", 0x50, INSTR_RRE_RR },
-	{ "msr", 0x52, INSTR_RRE_RR },
-	{ "mvpg", 0x54, INSTR_RRE_RR },
-	{ "mvst", 0x55, INSTR_RRE_RR },
-	{ "cuse", 0x57, INSTR_RRE_RR },
-	{ "bsg", 0x58, INSTR_RRE_RR },
-	{ "bsa", 0x5a, INSTR_RRE_RR },
-	{ "clst", 0x5d, INSTR_RRE_RR },
-	{ "srst", 0x5e, INSTR_RRE_RR },
-	{ "cmpsc", 0x63, INSTR_RRE_RR },
-	{ "siga", 0x74, INSTR_S_RD },
-	{ "xsch", 0x76, INSTR_S_00 },
-	{ "rp", 0x77, INSTR_S_RD },
-	{ "stcke", 0x78, INSTR_S_RD },
-	{ "sacf", 0x79, INSTR_S_RD },
-	{ "stsi", 0x7d, INSTR_S_RD },
-	{ "srnm", 0x99, INSTR_S_RD },
-	{ "stfpc", 0x9c, INSTR_S_RD },
-	{ "lfpc", 0x9d, INSTR_S_RD },
-	{ "tre", 0xa5, INSTR_RRE_RR },
-	{ "cuutf", 0xa6, INSTR_RRF_M0RR },
-	{ "cutfu", 0xa7, INSTR_RRF_M0RR },
-	{ "stfl", 0xb1, INSTR_S_RD },
-	{ "trap4", 0xff, INSTR_S_RD },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_b3[] = {
-	{ "maylr", 0x38, INSTR_RRF_F0FF },
-	{ "mylr", 0x39, INSTR_RRF_F0FF },
-	{ "mayr", 0x3a, INSTR_RRF_F0FF },
-	{ "myr", 0x3b, INSTR_RRF_F0FF },
-	{ "mayhr", 0x3c, INSTR_RRF_F0FF },
-	{ "myhr", 0x3d, INSTR_RRF_F0FF },
-	{ "lpdfr", 0x70, INSTR_RRE_FF },
-	{ "lndfr", 0x71, INSTR_RRE_FF },
-	{ "cpsdr", 0x72, INSTR_RRF_F0FF2 },
-	{ "lcdfr", 0x73, INSTR_RRE_FF },
-	{ "sfasr", 0x85, INSTR_RRE_R0 },
-	{ { 0, LONG_INSN_CELFBR }, 0x90, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CDLFBR }, 0x91, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CXLFBR }, 0x92, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CEFBRA }, 0x94, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CDFBRA }, 0x95, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CXFBRA }, 0x96, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CFEBRA }, 0x98, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CFDBRA }, 0x99, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CFXBRA }, 0x9a, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CLFEBR }, 0x9c, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLFDBR }, 0x9d, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLFXBR }, 0x9e, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CELGBR }, 0xa0, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CDLGBR }, 0xa1, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CXLGBR }, 0xa2, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CEGBRA }, 0xa4, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CDGBRA }, 0xa5, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CXGBRA }, 0xa6, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CGEBRA }, 0xa8, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CGDBRA }, 0xa9, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CGXBRA }, 0xaa, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CLGEBR }, 0xac, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLGDBR }, 0xad, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLGXBR }, 0xae, INSTR_RRF_UUFR },
-	{ "ldgr", 0xc1, INSTR_RRE_FR },
-	{ "cegr", 0xc4, INSTR_RRE_FR },
-	{ "cdgr", 0xc5, INSTR_RRE_FR },
-	{ "cxgr", 0xc6, INSTR_RRE_FR },
-	{ "cger", 0xc8, INSTR_RRF_U0RF },
-	{ "cgdr", 0xc9, INSTR_RRF_U0RF },
-	{ "cgxr", 0xca, INSTR_RRF_U0RF },
-	{ "lgdr", 0xcd, INSTR_RRE_RF },
-	{ "mdtra", 0xd0, INSTR_RRF_FUFF2 },
-	{ "ddtra", 0xd1, INSTR_RRF_FUFF2 },
-	{ "adtra", 0xd2, INSTR_RRF_FUFF2 },
-	{ "sdtra", 0xd3, INSTR_RRF_FUFF2 },
-	{ "ldetr", 0xd4, INSTR_RRF_0UFF },
-	{ "ledtr", 0xd5, INSTR_RRF_UUFF },
-	{ "ltdtr", 0xd6, INSTR_RRE_FF },
-	{ "fidtr", 0xd7, INSTR_RRF_UUFF },
-	{ "mxtra", 0xd8, INSTR_RRF_FUFF2 },
-	{ "dxtra", 0xd9, INSTR_RRF_FUFF2 },
-	{ "axtra", 0xda, INSTR_RRF_FUFF2 },
-	{ "sxtra", 0xdb, INSTR_RRF_FUFF2 },
-	{ "lxdtr", 0xdc, INSTR_RRF_0UFF },
-	{ "ldxtr", 0xdd, INSTR_RRF_UUFF },
-	{ "ltxtr", 0xde, INSTR_RRE_FF },
-	{ "fixtr", 0xdf, INSTR_RRF_UUFF },
-	{ "kdtr", 0xe0, INSTR_RRE_FF },
-	{ { 0, LONG_INSN_CGDTRA }, 0xe1, INSTR_RRF_UURF },
-	{ "cudtr", 0xe2, INSTR_RRE_RF },
-	{ "csdtr", 0xe3, INSTR_RRE_RF },
-	{ "cdtr", 0xe4, INSTR_RRE_FF },
-	{ "eedtr", 0xe5, INSTR_RRE_RF },
-	{ "esdtr", 0xe7, INSTR_RRE_RF },
-	{ "kxtr", 0xe8, INSTR_RRE_FF },
-	{ { 0, LONG_INSN_CGXTRA }, 0xe9, INSTR_RRF_UUFR },
-	{ "cuxtr", 0xea, INSTR_RRE_RF },
-	{ "csxtr", 0xeb, INSTR_RRE_RF },
-	{ "cxtr", 0xec, INSTR_RRE_FF },
-	{ "eextr", 0xed, INSTR_RRE_RF },
-	{ "esxtr", 0xef, INSTR_RRE_RF },
-	{ { 0, LONG_INSN_CDGTRA }, 0xf1, INSTR_RRF_UUFR },
-	{ "cdutr", 0xf2, INSTR_RRE_FR },
-	{ "cdstr", 0xf3, INSTR_RRE_FR },
-	{ "cedtr", 0xf4, INSTR_RRE_FF },
-	{ "qadtr", 0xf5, INSTR_RRF_FUFF },
-	{ "iedtr", 0xf6, INSTR_RRF_F0FR },
-	{ "rrdtr", 0xf7, INSTR_RRF_FFRU },
-	{ { 0, LONG_INSN_CXGTRA }, 0xf9, INSTR_RRF_UURF },
-	{ "cxutr", 0xfa, INSTR_RRE_FR },
-	{ "cxstr", 0xfb, INSTR_RRE_FR },
-	{ "cextr", 0xfc, INSTR_RRE_FF },
-	{ "qaxtr", 0xfd, INSTR_RRF_FUFF },
-	{ "iextr", 0xfe, INSTR_RRF_F0FR },
-	{ "rrxtr", 0xff, INSTR_RRF_FFRU },
-	{ "lpebr", 0x00, INSTR_RRE_FF },
-	{ "lnebr", 0x01, INSTR_RRE_FF },
-	{ "ltebr", 0x02, INSTR_RRE_FF },
-	{ "lcebr", 0x03, INSTR_RRE_FF },
-	{ "ldebr", 0x04, INSTR_RRE_FF },
-	{ "lxdbr", 0x05, INSTR_RRE_FF },
-	{ "lxebr", 0x06, INSTR_RRE_FF },
-	{ "mxdbr", 0x07, INSTR_RRE_FF },
-	{ "kebr", 0x08, INSTR_RRE_FF },
-	{ "cebr", 0x09, INSTR_RRE_FF },
-	{ "aebr", 0x0a, INSTR_RRE_FF },
-	{ "sebr", 0x0b, INSTR_RRE_FF },
-	{ "mdebr", 0x0c, INSTR_RRE_FF },
-	{ "debr", 0x0d, INSTR_RRE_FF },
-	{ "maebr", 0x0e, INSTR_RRF_F0FF },
-	{ "msebr", 0x0f, INSTR_RRF_F0FF },
-	{ "lpdbr", 0x10, INSTR_RRE_FF },
-	{ "lndbr", 0x11, INSTR_RRE_FF },
-	{ "ltdbr", 0x12, INSTR_RRE_FF },
-	{ "lcdbr", 0x13, INSTR_RRE_FF },
-	{ "sqebr", 0x14, INSTR_RRE_FF },
-	{ "sqdbr", 0x15, INSTR_RRE_FF },
-	{ "sqxbr", 0x16, INSTR_RRE_FF },
-	{ "meebr", 0x17, INSTR_RRE_FF },
-	{ "kdbr", 0x18, INSTR_RRE_FF },
-	{ "cdbr", 0x19, INSTR_RRE_FF },
-	{ "adbr", 0x1a, INSTR_RRE_FF },
-	{ "sdbr", 0x1b, INSTR_RRE_FF },
-	{ "mdbr", 0x1c, INSTR_RRE_FF },
-	{ "ddbr", 0x1d, INSTR_RRE_FF },
-	{ "madbr", 0x1e, INSTR_RRF_F0FF },
-	{ "msdbr", 0x1f, INSTR_RRF_F0FF },
-	{ "lder", 0x24, INSTR_RRE_FF },
-	{ "lxdr", 0x25, INSTR_RRE_FF },
-	{ "lxer", 0x26, INSTR_RRE_FF },
-	{ "maer", 0x2e, INSTR_RRF_F0FF },
-	{ "mser", 0x2f, INSTR_RRF_F0FF },
-	{ "sqxr", 0x36, INSTR_RRE_FF },
-	{ "meer", 0x37, INSTR_RRE_FF },
-	{ "madr", 0x3e, INSTR_RRF_F0FF },
-	{ "msdr", 0x3f, INSTR_RRF_F0FF },
-	{ "lpxbr", 0x40, INSTR_RRE_FF },
-	{ "lnxbr", 0x41, INSTR_RRE_FF },
-	{ "ltxbr", 0x42, INSTR_RRE_FF },
-	{ "lcxbr", 0x43, INSTR_RRE_FF },
-	{ { 0, LONG_INSN_LEDBRA }, 0x44, INSTR_RRF_UUFF },
-	{ { 0, LONG_INSN_LDXBRA }, 0x45, INSTR_RRF_UUFF },
-	{ { 0, LONG_INSN_LEXBRA }, 0x46, INSTR_RRF_UUFF },
-	{ { 0, LONG_INSN_FIXBRA }, 0x47, INSTR_RRF_UUFF },
-	{ "kxbr", 0x48, INSTR_RRE_FF },
-	{ "cxbr", 0x49, INSTR_RRE_FF },
-	{ "axbr", 0x4a, INSTR_RRE_FF },
-	{ "sxbr", 0x4b, INSTR_RRE_FF },
-	{ "mxbr", 0x4c, INSTR_RRE_FF },
-	{ "dxbr", 0x4d, INSTR_RRE_FF },
-	{ "tbedr", 0x50, INSTR_RRF_U0FF },
-	{ "tbdr", 0x51, INSTR_RRF_U0FF },
-	{ "diebr", 0x53, INSTR_RRF_FUFF },
-	{ { 0, LONG_INSN_FIEBRA }, 0x57, INSTR_RRF_UUFF },
-	{ "thder", 0x58, INSTR_RRE_FF },
-	{ "thdr", 0x59, INSTR_RRE_FF },
-	{ "didbr", 0x5b, INSTR_RRF_FUFF },
-	{ { 0, LONG_INSN_FIDBRA }, 0x5f, INSTR_RRF_UUFF },
-	{ "lpxr", 0x60, INSTR_RRE_FF },
-	{ "lnxr", 0x61, INSTR_RRE_FF },
-	{ "ltxr", 0x62, INSTR_RRE_FF },
-	{ "lcxr", 0x63, INSTR_RRE_FF },
-	{ "lxr", 0x65, INSTR_RRE_FF },
-	{ "lexr", 0x66, INSTR_RRE_FF },
-	{ "fixr", 0x67, INSTR_RRE_FF },
-	{ "cxr", 0x69, INSTR_RRE_FF },
-	{ "lzer", 0x74, INSTR_RRE_F0 },
-	{ "lzdr", 0x75, INSTR_RRE_F0 },
-	{ "lzxr", 0x76, INSTR_RRE_F0 },
-	{ "fier", 0x77, INSTR_RRE_FF },
-	{ "fidr", 0x7f, INSTR_RRE_FF },
-	{ "sfpc", 0x84, INSTR_RRE_RR_OPT },
-	{ "efpc", 0x8c, INSTR_RRE_RR_OPT },
-	{ "cefbr", 0x94, INSTR_RRE_RF },
-	{ "cdfbr", 0x95, INSTR_RRE_RF },
-	{ "cxfbr", 0x96, INSTR_RRE_RF },
-	{ "cfebr", 0x98, INSTR_RRF_U0RF },
-	{ "cfdbr", 0x99, INSTR_RRF_U0RF },
-	{ "cfxbr", 0x9a, INSTR_RRF_U0RF },
-	{ "cefr", 0xb4, INSTR_RRE_FR },
-	{ "cdfr", 0xb5, INSTR_RRE_FR },
-	{ "cxfr", 0xb6, INSTR_RRE_FR },
-	{ "cfer", 0xb8, INSTR_RRF_U0RF },
-	{ "cfdr", 0xb9, INSTR_RRF_U0RF },
-	{ "cfxr", 0xba, INSTR_RRF_U0RF },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_b9[] = {
-	{ "lpgr", 0x00, INSTR_RRE_RR },
-	{ "lngr", 0x01, INSTR_RRE_RR },
-	{ "ltgr", 0x02, INSTR_RRE_RR },
-	{ "lcgr", 0x03, INSTR_RRE_RR },
-	{ "lgr", 0x04, INSTR_RRE_RR },
-	{ "lurag", 0x05, INSTR_RRE_RR },
-	{ "lgbr", 0x06, INSTR_RRE_RR },
-	{ "lghr", 0x07, INSTR_RRE_RR },
-	{ "agr", 0x08, INSTR_RRE_RR },
-	{ "sgr", 0x09, INSTR_RRE_RR },
-	{ "algr", 0x0a, INSTR_RRE_RR },
-	{ "slgr", 0x0b, INSTR_RRE_RR },
-	{ "msgr", 0x0c, INSTR_RRE_RR },
-	{ "dsgr", 0x0d, INSTR_RRE_RR },
-	{ "eregg", 0x0e, INSTR_RRE_RR },
-	{ "lrvgr", 0x0f, INSTR_RRE_RR },
-	{ "lpgfr", 0x10, INSTR_RRE_RR },
-	{ "lngfr", 0x11, INSTR_RRE_RR },
-	{ "ltgfr", 0x12, INSTR_RRE_RR },
-	{ "lcgfr", 0x13, INSTR_RRE_RR },
-	{ "lgfr", 0x14, INSTR_RRE_RR },
-	{ "llgfr", 0x16, INSTR_RRE_RR },
-	{ "llgtr", 0x17, INSTR_RRE_RR },
-	{ "agfr", 0x18, INSTR_RRE_RR },
-	{ "sgfr", 0x19, INSTR_RRE_RR },
-	{ "algfr", 0x1a, INSTR_RRE_RR },
-	{ "slgfr", 0x1b, INSTR_RRE_RR },
-	{ "msgfr", 0x1c, INSTR_RRE_RR },
-	{ "dsgfr", 0x1d, INSTR_RRE_RR },
-	{ "cgr", 0x20, INSTR_RRE_RR },
-	{ "clgr", 0x21, INSTR_RRE_RR },
-	{ "sturg", 0x25, INSTR_RRE_RR },
-	{ "lbr", 0x26, INSTR_RRE_RR },
-	{ "lhr", 0x27, INSTR_RRE_RR },
-	{ "cgfr", 0x30, INSTR_RRE_RR },
-	{ "clgfr", 0x31, INSTR_RRE_RR },
-	{ "cfdtr", 0x41, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLGDTR }, 0x42, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLFDTR }, 0x43, INSTR_RRF_UURF },
-	{ "bctgr", 0x46, INSTR_RRE_RR },
-	{ "cfxtr", 0x49, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CLGXTR }, 0x4a, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CLFXTR }, 0x4b, INSTR_RRF_UUFR },
-	{ "cdftr", 0x51, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CDLGTR }, 0x52, INSTR_RRF_UUFR },
-	{ { 0, LONG_INSN_CDLFTR }, 0x53, INSTR_RRF_UUFR },
-	{ "cxftr", 0x59, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CXLGTR }, 0x5a, INSTR_RRF_UURF },
-	{ { 0, LONG_INSN_CXLFTR }, 0x5b, INSTR_RRF_UUFR },
-	{ "cgrt", 0x60, INSTR_RRF_U0RR },
-	{ "clgrt", 0x61, INSTR_RRF_U0RR },
-	{ "crt", 0x72, INSTR_RRF_U0RR },
-	{ "clrt", 0x73, INSTR_RRF_U0RR },
-	{ "ngr", 0x80, INSTR_RRE_RR },
-	{ "ogr", 0x81, INSTR_RRE_RR },
-	{ "xgr", 0x82, INSTR_RRE_RR },
-	{ "flogr", 0x83, INSTR_RRE_RR },
-	{ "llgcr", 0x84, INSTR_RRE_RR },
-	{ "llghr", 0x85, INSTR_RRE_RR },
-	{ "mlgr", 0x86, INSTR_RRE_RR },
-	{ "dlgr", 0x87, INSTR_RRE_RR },
-	{ "alcgr", 0x88, INSTR_RRE_RR },
-	{ "slbgr", 0x89, INSTR_RRE_RR },
-	{ "cspg", 0x8a, INSTR_RRE_RR },
-	{ "idte", 0x8e, INSTR_RRF_R0RR },
-	{ "crdte", 0x8f, INSTR_RRF_RMRR },
-	{ "llcr", 0x94, INSTR_RRE_RR },
-	{ "llhr", 0x95, INSTR_RRE_RR },
-	{ "esea", 0x9d, INSTR_RRE_R0 },
-	{ "ptf", 0xa2, INSTR_RRE_R0 },
-	{ "lptea", 0xaa, INSTR_RRF_RURR },
-	{ "rrbm", 0xae, INSTR_RRE_RR },
-	{ "pfmf", 0xaf, INSTR_RRE_RR },
-	{ "cu14", 0xb0, INSTR_RRF_M0RR },
-	{ "cu24", 0xb1, INSTR_RRF_M0RR },
-	{ "cu41", 0xb2, INSTR_RRE_RR },
-	{ "cu42", 0xb3, INSTR_RRE_RR },
-	{ "trtre", 0xbd, INSTR_RRF_M0RR },
-	{ "srstu", 0xbe, INSTR_RRE_RR },
-	{ "trte", 0xbf, INSTR_RRF_M0RR },
-	{ "ahhhr", 0xc8, INSTR_RRF_R0RR2 },
-	{ "shhhr", 0xc9, INSTR_RRF_R0RR2 },
-	{ { 0, LONG_INSN_ALHHHR }, 0xca, INSTR_RRF_R0RR2 },
-	{ { 0, LONG_INSN_SLHHHR }, 0xcb, INSTR_RRF_R0RR2 },
-	{ "chhr", 0xcd, INSTR_RRE_RR },
-	{ "clhhr", 0xcf, INSTR_RRE_RR },
-	{ { 0, LONG_INSN_PCISTG }, 0xd0, INSTR_RRE_RR },
-	{ "pcilg", 0xd2, INSTR_RRE_RR },
-	{ "rpcit", 0xd3, INSTR_RRE_RR },
-	{ "ahhlr", 0xd8, INSTR_RRF_R0RR2 },
-	{ "shhlr", 0xd9, INSTR_RRF_R0RR2 },
-	{ { 0, LONG_INSN_ALHHLR }, 0xda, INSTR_RRF_R0RR2 },
-	{ { 0, LONG_INSN_SLHHLR }, 0xdb, INSTR_RRF_R0RR2 },
-	{ "chlr", 0xdd, INSTR_RRE_RR },
-	{ "clhlr", 0xdf, INSTR_RRE_RR },
-	{ { 0, LONG_INSN_POPCNT }, 0xe1, INSTR_RRE_RR },
-	{ "locgr", 0xe2, INSTR_RRF_M0RR },
-	{ "ngrk", 0xe4, INSTR_RRF_R0RR2 },
-	{ "ogrk", 0xe6, INSTR_RRF_R0RR2 },
-	{ "xgrk", 0xe7, INSTR_RRF_R0RR2 },
-	{ "agrk", 0xe8, INSTR_RRF_R0RR2 },
-	{ "sgrk", 0xe9, INSTR_RRF_R0RR2 },
-	{ "algrk", 0xea, INSTR_RRF_R0RR2 },
-	{ "slgrk", 0xeb, INSTR_RRF_R0RR2 },
-	{ "locr", 0xf2, INSTR_RRF_M0RR },
-	{ "nrk", 0xf4, INSTR_RRF_R0RR2 },
-	{ "ork", 0xf6, INSTR_RRF_R0RR2 },
-	{ "xrk", 0xf7, INSTR_RRF_R0RR2 },
-	{ "ark", 0xf8, INSTR_RRF_R0RR2 },
-	{ "srk", 0xf9, INSTR_RRF_R0RR2 },
-	{ "alrk", 0xfa, INSTR_RRF_R0RR2 },
-	{ "slrk", 0xfb, INSTR_RRF_R0RR2 },
-	{ "kmac", 0x1e, INSTR_RRE_RR },
-	{ "lrvr", 0x1f, INSTR_RRE_RR },
-	{ "km", 0x2e, INSTR_RRE_RR },
-	{ "kmc", 0x2f, INSTR_RRE_RR },
-	{ "kimd", 0x3e, INSTR_RRE_RR },
-	{ "klmd", 0x3f, INSTR_RRE_RR },
-	{ "epsw", 0x8d, INSTR_RRE_RR },
-	{ "trtt", 0x90, INSTR_RRF_M0RR },
-	{ "trto", 0x91, INSTR_RRF_M0RR },
-	{ "trot", 0x92, INSTR_RRF_M0RR },
-	{ "troo", 0x93, INSTR_RRF_M0RR },
-	{ "mlr", 0x96, INSTR_RRE_RR },
-	{ "dlr", 0x97, INSTR_RRE_RR },
-	{ "alcr", 0x98, INSTR_RRE_RR },
-	{ "slbr", 0x99, INSTR_RRE_RR },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_c0[] = {
-	{ "lgfi", 0x01, INSTR_RIL_RI },
-	{ "xihf", 0x06, INSTR_RIL_RU },
-	{ "xilf", 0x07, INSTR_RIL_RU },
-	{ "iihf", 0x08, INSTR_RIL_RU },
-	{ "iilf", 0x09, INSTR_RIL_RU },
-	{ "nihf", 0x0a, INSTR_RIL_RU },
-	{ "nilf", 0x0b, INSTR_RIL_RU },
-	{ "oihf", 0x0c, INSTR_RIL_RU },
-	{ "oilf", 0x0d, INSTR_RIL_RU },
-	{ "llihf", 0x0e, INSTR_RIL_RU },
-	{ "llilf", 0x0f, INSTR_RIL_RU },
-	{ "larl", 0x00, INSTR_RIL_RP },
-	{ "brcl", 0x04, INSTR_RIL_UP },
-	{ "brasl", 0x05, INSTR_RIL_RP },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_c2[] = {
-	{ "msgfi", 0x00, INSTR_RIL_RI },
-	{ "msfi", 0x01, INSTR_RIL_RI },
-	{ "slgfi", 0x04, INSTR_RIL_RU },
-	{ "slfi", 0x05, INSTR_RIL_RU },
-	{ "agfi", 0x08, INSTR_RIL_RI },
-	{ "afi", 0x09, INSTR_RIL_RI },
-	{ "algfi", 0x0a, INSTR_RIL_RU },
-	{ "alfi", 0x0b, INSTR_RIL_RU },
-	{ "cgfi", 0x0c, INSTR_RIL_RI },
-	{ "cfi", 0x0d, INSTR_RIL_RI },
-	{ "clgfi", 0x0e, INSTR_RIL_RU },
-	{ "clfi", 0x0f, INSTR_RIL_RU },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_c4[] = {
-	{ "llhrl", 0x02, INSTR_RIL_RP },
-	{ "lghrl", 0x04, INSTR_RIL_RP },
-	{ "lhrl", 0x05, INSTR_RIL_RP },
-	{ { 0, LONG_INSN_LLGHRL }, 0x06, INSTR_RIL_RP },
-	{ "sthrl", 0x07, INSTR_RIL_RP },
-	{ "lgrl", 0x08, INSTR_RIL_RP },
-	{ "stgrl", 0x0b, INSTR_RIL_RP },
-	{ "lgfrl", 0x0c, INSTR_RIL_RP },
-	{ "lrl", 0x0d, INSTR_RIL_RP },
-	{ { 0, LONG_INSN_LLGFRL }, 0x0e, INSTR_RIL_RP },
-	{ "strl", 0x0f, INSTR_RIL_RP },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_c6[] = {
-	{ "exrl", 0x00, INSTR_RIL_RP },
-	{ "pfdrl", 0x02, INSTR_RIL_UP },
-	{ "cghrl", 0x04, INSTR_RIL_RP },
-	{ "chrl", 0x05, INSTR_RIL_RP },
-	{ { 0, LONG_INSN_CLGHRL }, 0x06, INSTR_RIL_RP },
-	{ "clhrl", 0x07, INSTR_RIL_RP },
-	{ "cgrl", 0x08, INSTR_RIL_RP },
-	{ "clgrl", 0x0a, INSTR_RIL_RP },
-	{ "cgfrl", 0x0c, INSTR_RIL_RP },
-	{ "crl", 0x0d, INSTR_RIL_RP },
-	{ { 0, LONG_INSN_CLGFRL }, 0x0e, INSTR_RIL_RP },
-	{ "clrl", 0x0f, INSTR_RIL_RP },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_c8[] = {
-	{ "mvcos", 0x00, INSTR_SSF_RRDRD },
-	{ "ectg", 0x01, INSTR_SSF_RRDRD },
-	{ "csst", 0x02, INSTR_SSF_RRDRD },
-	{ "lpd", 0x04, INSTR_SSF_RRDRD2 },
-	{ "lpdg", 0x05, INSTR_SSF_RRDRD2 },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_cc[] = {
-	{ "brcth", 0x06, INSTR_RIL_RP },
-	{ "aih", 0x08, INSTR_RIL_RI },
-	{ "alsih", 0x0a, INSTR_RIL_RI },
-	{ { 0, LONG_INSN_ALSIHN }, 0x0b, INSTR_RIL_RI },
-	{ "cih", 0x0d, INSTR_RIL_RI },
-	{ "clih", 0x0f, INSTR_RIL_RI },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_e3[] = {
-	{ "ltg", 0x02, INSTR_RXY_RRRD },
-	{ "lrag", 0x03, INSTR_RXY_RRRD },
-	{ "lg", 0x04, INSTR_RXY_RRRD },
-	{ "cvby", 0x06, INSTR_RXY_RRRD },
-	{ "ag", 0x08, INSTR_RXY_RRRD },
-	{ "sg", 0x09, INSTR_RXY_RRRD },
-	{ "alg", 0x0a, INSTR_RXY_RRRD },
-	{ "slg", 0x0b, INSTR_RXY_RRRD },
-	{ "msg", 0x0c, INSTR_RXY_RRRD },
-	{ "dsg", 0x0d, INSTR_RXY_RRRD },
-	{ "cvbg", 0x0e, INSTR_RXY_RRRD },
-	{ "lrvg", 0x0f, INSTR_RXY_RRRD },
-	{ "lt", 0x12, INSTR_RXY_RRRD },
-	{ "lray", 0x13, INSTR_RXY_RRRD },
-	{ "lgf", 0x14, INSTR_RXY_RRRD },
-	{ "lgh", 0x15, INSTR_RXY_RRRD },
-	{ "llgf", 0x16, INSTR_RXY_RRRD },
-	{ "llgt", 0x17, INSTR_RXY_RRRD },
-	{ "agf", 0x18, INSTR_RXY_RRRD },
-	{ "sgf", 0x19, INSTR_RXY_RRRD },
-	{ "algf", 0x1a, INSTR_RXY_RRRD },
-	{ "slgf", 0x1b, INSTR_RXY_RRRD },
-	{ "msgf", 0x1c, INSTR_RXY_RRRD },
-	{ "dsgf", 0x1d, INSTR_RXY_RRRD },
-	{ "cg", 0x20, INSTR_RXY_RRRD },
-	{ "clg", 0x21, INSTR_RXY_RRRD },
-	{ "stg", 0x24, INSTR_RXY_RRRD },
-	{ "ntstg", 0x25, INSTR_RXY_RRRD },
-	{ "cvdy", 0x26, INSTR_RXY_RRRD },
-	{ "cvdg", 0x2e, INSTR_RXY_RRRD },
-	{ "strvg", 0x2f, INSTR_RXY_RRRD },
-	{ "cgf", 0x30, INSTR_RXY_RRRD },
-	{ "clgf", 0x31, INSTR_RXY_RRRD },
-	{ "ltgf", 0x32, INSTR_RXY_RRRD },
-	{ "cgh", 0x34, INSTR_RXY_RRRD },
-	{ "pfd", 0x36, INSTR_RXY_URRD },
-	{ "strvh", 0x3f, INSTR_RXY_RRRD },
-	{ "bctg", 0x46, INSTR_RXY_RRRD },
-	{ "sty", 0x50, INSTR_RXY_RRRD },
-	{ "msy", 0x51, INSTR_RXY_RRRD },
-	{ "ny", 0x54, INSTR_RXY_RRRD },
-	{ "cly", 0x55, INSTR_RXY_RRRD },
-	{ "oy", 0x56, INSTR_RXY_RRRD },
-	{ "xy", 0x57, INSTR_RXY_RRRD },
-	{ "ly", 0x58, INSTR_RXY_RRRD },
-	{ "cy", 0x59, INSTR_RXY_RRRD },
-	{ "ay", 0x5a, INSTR_RXY_RRRD },
-	{ "sy", 0x5b, INSTR_RXY_RRRD },
-	{ "mfy", 0x5c, INSTR_RXY_RRRD },
-	{ "aly", 0x5e, INSTR_RXY_RRRD },
-	{ "sly", 0x5f, INSTR_RXY_RRRD },
-	{ "sthy", 0x70, INSTR_RXY_RRRD },
-	{ "lay", 0x71, INSTR_RXY_RRRD },
-	{ "stcy", 0x72, INSTR_RXY_RRRD },
-	{ "icy", 0x73, INSTR_RXY_RRRD },
-	{ "laey", 0x75, INSTR_RXY_RRRD },
-	{ "lb", 0x76, INSTR_RXY_RRRD },
-	{ "lgb", 0x77, INSTR_RXY_RRRD },
-	{ "lhy", 0x78, INSTR_RXY_RRRD },
-	{ "chy", 0x79, INSTR_RXY_RRRD },
-	{ "ahy", 0x7a, INSTR_RXY_RRRD },
-	{ "shy", 0x7b, INSTR_RXY_RRRD },
-	{ "mhy", 0x7c, INSTR_RXY_RRRD },
-	{ "ng", 0x80, INSTR_RXY_RRRD },
-	{ "og", 0x81, INSTR_RXY_RRRD },
-	{ "xg", 0x82, INSTR_RXY_RRRD },
-	{ "lgat", 0x85, INSTR_RXY_RRRD },
-	{ "mlg", 0x86, INSTR_RXY_RRRD },
-	{ "dlg", 0x87, INSTR_RXY_RRRD },
-	{ "alcg", 0x88, INSTR_RXY_RRRD },
-	{ "slbg", 0x89, INSTR_RXY_RRRD },
-	{ "stpq", 0x8e, INSTR_RXY_RRRD },
-	{ "lpq", 0x8f, INSTR_RXY_RRRD },
-	{ "llgc", 0x90, INSTR_RXY_RRRD },
-	{ "llgh", 0x91, INSTR_RXY_RRRD },
-	{ "llc", 0x94, INSTR_RXY_RRRD },
-	{ "llh", 0x95, INSTR_RXY_RRRD },
-	{ { 0, LONG_INSN_LLGTAT }, 0x9c, INSTR_RXY_RRRD },
-	{ { 0, LONG_INSN_LLGFAT }, 0x9d, INSTR_RXY_RRRD },
-	{ "lat", 0x9f, INSTR_RXY_RRRD },
-	{ "lbh", 0xc0, INSTR_RXY_RRRD },
-	{ "llch", 0xc2, INSTR_RXY_RRRD },
-	{ "stch", 0xc3, INSTR_RXY_RRRD },
-	{ "lhh", 0xc4, INSTR_RXY_RRRD },
-	{ "llhh", 0xc6, INSTR_RXY_RRRD },
-	{ "sthh", 0xc7, INSTR_RXY_RRRD },
-	{ "lfhat", 0xc8, INSTR_RXY_RRRD },
-	{ "lfh", 0xca, INSTR_RXY_RRRD },
-	{ "stfh", 0xcb, INSTR_RXY_RRRD },
-	{ "chf", 0xcd, INSTR_RXY_RRRD },
-	{ "clhf", 0xcf, INSTR_RXY_RRRD },
-	{ { 0, LONG_INSN_MPCIFC }, 0xd0, INSTR_RXY_RRRD },
-	{ { 0, LONG_INSN_STPCIFC }, 0xd4, INSTR_RXY_RRRD },
-	{ "lrv", 0x1e, INSTR_RXY_RRRD },
-	{ "lrvh", 0x1f, INSTR_RXY_RRRD },
-	{ "strv", 0x3e, INSTR_RXY_RRRD },
-	{ "ml", 0x96, INSTR_RXY_RRRD },
-	{ "dl", 0x97, INSTR_RXY_RRRD },
-	{ "alc", 0x98, INSTR_RXY_RRRD },
-	{ "slb", 0x99, INSTR_RXY_RRRD },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_e5[] = {
-	{ "strag", 0x02, INSTR_SSE_RDRD },
-	{ "mvhhi", 0x44, INSTR_SIL_RDI },
-	{ "mvghi", 0x48, INSTR_SIL_RDI },
-	{ "mvhi", 0x4c, INSTR_SIL_RDI },
-	{ "chhsi", 0x54, INSTR_SIL_RDI },
-	{ { 0, LONG_INSN_CLHHSI }, 0x55, INSTR_SIL_RDU },
-	{ "cghsi", 0x58, INSTR_SIL_RDI },
-	{ { 0, LONG_INSN_CLGHSI }, 0x59, INSTR_SIL_RDU },
-	{ "chsi", 0x5c, INSTR_SIL_RDI },
-	{ { 0, LONG_INSN_CLFHSI }, 0x5d, INSTR_SIL_RDU },
-	{ { 0, LONG_INSN_TBEGIN }, 0x60, INSTR_SIL_RDU },
-	{ { 0, LONG_INSN_TBEGINC }, 0x61, INSTR_SIL_RDU },
-	{ "lasp", 0x00, INSTR_SSE_RDRD },
-	{ "tprot", 0x01, INSTR_SSE_RDRD },
-	{ "mvcsk", 0x0e, INSTR_SSE_RDRD },
-	{ "mvcdk", 0x0f, INSTR_SSE_RDRD },
-	{ "", 0, INSTR_INVALID }
-};
-
-static struct s390_insn opcode_e7[] = {
-	{ "lcbb", 0x27, INSTR_RXE_RRRDM },
-	{ "vgef", 0x13, INSTR_VRV_VVRDM },
-	{ "vgeg", 0x12, INSTR_VRV_VVRDM },
-	{ "vgbm", 0x44, INSTR_VRI_V0I0 },
-	{ "vgm", 0x46, INSTR_VRI_V0IIM },
-	{ "vl", 0x06, INSTR_VRX_VRRD0 },
-	{ "vlr", 0x56, INSTR_VRR_VV00000 },
-	{ "vlrp", 0x05, INSTR_VRX_VRRDM },
-	{ "vleb", 0x00, INSTR_VRX_VRRDM },
-	{ "vleh", 0x01, INSTR_VRX_VRRDM },
-	{ "vlef", 0x03, INSTR_VRX_VRRDM },
-	{ "vleg", 0x02, INSTR_VRX_VRRDM },
-	{ "vleib", 0x40, INSTR_VRI_V0IM },
-	{ "vleih", 0x41, INSTR_VRI_V0IM },
-	{ "vleif", 0x43, INSTR_VRI_V0IM },
-	{ "vleig", 0x42, INSTR_VRI_V0IM },
-	{ "vlgv", 0x21, INSTR_VRS_RVRDM },
-	{ "vllez", 0x04, INSTR_VRX_VRRDM },
-	{ "vlm", 0x36, INSTR_VRS_VVRD0 },
-	{ "vlbb", 0x07, INSTR_VRX_VRRDM },
-	{ "vlvg", 0x22, INSTR_VRS_VRRDM },
-	{ "vlvgp", 0x62, INSTR_VRR_VRR0000 },
-	{ "vll", 0x37, INSTR_VRS_VRRD0 },
-	{ "vmrh", 0x61, INSTR_VRR_VVV000M },
-	{ "vmrl", 0x60, INSTR_VRR_VVV000M },
-	{ "vpk", 0x94, INSTR_VRR_VVV000M },
-	{ "vpks", 0x97, INSTR_VRR_VVV0M0M },
-	{ "vpkls", 0x95, INSTR_VRR_VVV0M0M },
-	{ "vperm", 0x8c, INSTR_VRR_VVV000V },
-	{ "vpdi", 0x84, INSTR_VRR_VVV000M },
-	{ "vrep", 0x4d, INSTR_VRI_VVIM },
-	{ "vrepi", 0x45, INSTR_VRI_V0IM },
-	{ "vscef", 0x1b, INSTR_VRV_VWRDM },
-	{ "vsceg", 0x1a, INSTR_VRV_VWRDM },
-	{ "vsel", 0x8d, INSTR_VRR_VVV000V },
-	{ "vseg", 0x5f, INSTR_VRR_VV0000M },
-	{ "vst", 0x0e, INSTR_VRX_VRRD0 },
-	{ "vsteb", 0x08, INSTR_VRX_VRRDM },
-	{ "vsteh", 0x09, INSTR_VRX_VRRDM },
-	{ "vstef", 0x0b, INSTR_VRX_VRRDM },
-	{ "vsteg", 0x0a, INSTR_VRX_VRRDM },
-	{ "vstm", 0x3e, INSTR_VRS_VVRD0 },
-	{ "vstl", 0x3f, INSTR_VRS_VRRD0 },
-	{ "vuph", 0xd7, INSTR_VRR_VV0000M },
-	{ "vuplh", 0xd5, INSTR_VRR_VV0000M },
-	{ "vupl", 0xd6, INSTR_VRR_VV0000M },
-	{ "vupll", 0xd4, INSTR_VRR_VV0000M },
-	{ "va", 0xf3, INSTR_VRR_VVV000M },
-	{ "vacc", 0xf1, INSTR_VRR_VVV000M },
-	{ "vac", 0xbb, INSTR_VRR_VVVM00V },
-	{ "vaccc", 0xb9, INSTR_VRR_VVVM00V },
-	{ "vn", 0x68, INSTR_VRR_VVV0000 },
-	{ "vnc", 0x69, INSTR_VRR_VVV0000 },
-	{ "vavg", 0xf2, INSTR_VRR_VVV000M },
-	{ "vavgl", 0xf0, INSTR_VRR_VVV000M },
-	{ "vcksm", 0x66, INSTR_VRR_VVV0000 },
-	{ "vec", 0xdb, INSTR_VRR_VV0000M },
-	{ "vecl", 0xd9, INSTR_VRR_VV0000M },
-	{ "vceq", 0xf8, INSTR_VRR_VVV0M0M },
-	{ "vch", 0xfb, INSTR_VRR_VVV0M0M },
-	{ "vchl", 0xf9, INSTR_VRR_VVV0M0M },
-	{ "vclz", 0x53, INSTR_VRR_VV0000M },
-	{ "vctz", 0x52, INSTR_VRR_VV0000M },
-	{ "vx", 0x6d, INSTR_VRR_VVV0000 },
-	{ "vgfm", 0xb4, INSTR_VRR_VVV000M },
-	{ "vgfma", 0xbc, INSTR_VRR_VVVM00V },
-	{ "vlc", 0xde, INSTR_VRR_VV0000M },
-	{ "vlp", 0xdf, INSTR_VRR_VV0000M },
-	{ "vmx", 0xff, INSTR_VRR_VVV000M },
-	{ "vmxl", 0xfd, INSTR_VRR_VVV000M },
-	{ "vmn", 0xfe, INSTR_VRR_VVV000M },
-	{ "vmnl", 0xfc, INSTR_VRR_VVV000M },
-	{ "vmal", 0xaa, INSTR_VRR_VVVM00V },
-	{ "vmae", 0xae, INSTR_VRR_VVVM00V },
-	{ "vmale", 0xac, INSTR_VRR_VVVM00V },
-	{ "vmah", 0xab, INSTR_VRR_VVVM00V },
-	{ "vmalh", 0xa9, INSTR_VRR_VVVM00V },
-	{ "vmao", 0xaf, INSTR_VRR_VVVM00V },
-	{ "vmalo", 0xad, INSTR_VRR_VVVM00V },
-	{ "vmh", 0xa3, INSTR_VRR_VVV000M },
-	{ "vmlh", 0xa1, INSTR_VRR_VVV000M },
-	{ "vml", 0xa2, INSTR_VRR_VVV000M },
-	{ "vme", 0xa6, INSTR_VRR_VVV000M },
-	{ "vmle", 0xa4, INSTR_VRR_VVV000M },
-	{ "vmo", 0xa7, INSTR_VRR_VVV000M },
-	{ "vmlo", 0xa5, INSTR_VRR_VVV000M },
-	{ "vno", 0x6b, INSTR_VRR_VVV0000 },
-	{ "vo", 0x6a, INSTR_VRR_VVV0000 },
-	{ { 0, LONG_INSN_VPOPCT }, 0x50, INSTR_VRR_VV0000M },
-	{ { 0, LONG_INSN_VERLLV }, 0x73, INSTR_VRR_VVV000M },
-	{ "verll", 0x33, INSTR_VRS_VVRDM },
-	{ "verim", 0x72, INSTR_VRI_VVV0IM },
-	{ "veslv", 0x70, INSTR_VRR_VVV000M },
-	{ "vesl", 0x30, INSTR_VRS_VVRDM },
-	{ { 0, LONG_INSN_VESRAV }, 0x7a, INSTR_VRR_VVV000M },
-	{ "vesra", 0x3a, INSTR_VRS_VVRDM },
-	{ { 0, LONG_INSN_VESRLV }, 0x78, INSTR_VRR_VVV000M },
-	{ "vesrl", 0x38, INSTR_VRS_VVRDM },
-	{ "vsl", 0x74, INSTR_VRR_VVV0000 },
-	{ "vslb", 0x75, INSTR_VRR_VVV0000 },
-	{ "vsldb", 0x77, INSTR_VRI_VVV0I0 },
-	{ "vsra", 0x7e, INSTR_VRR_VVV0000 },
-	{ "vsrab", 0x7f, INSTR_VRR_VVV0000 },
-	{ "vsrl", 0x7c, INSTR_VRR_VVV0000 },
-	{ "vsrlb", 0x7d, INSTR_VRR_VVV0000 },
-	{ "vs", 0xf7, INSTR_VRR_VVV000M },
-	{ "vscb", 0xf5, INSTR_VRR_VVV000M },
-	{ "vsb", 0xbf, INSTR_VRR_VVVM00V },
-	{ { 0, LONG_INSN_VSBCBI }, 0xbd, INSTR_VRR_VVVM00V },
-	{ "vsumg", 0x65, INSTR_VRR_VVV000M },
-	{ "vsumq", 0x67, INSTR_VRR_VVV000M },
-	{ "vsum", 0x64, INSTR_VRR_VVV000M },
-	{ "vtm", 0xd8, INSTR_VRR_VV00000 },
-	{ "vfae", 0x82, INSTR_VRR_VVV0M0M },
-	{ "vfee", 0x80, INSTR_VRR_VVV0M0M },
-	{ "vfene", 0x81, INSTR_VRR_VVV0M0M },
-	{ "vistr", 0x5c, INSTR_VRR_VV00M0M },
-	{ "vstrc", 0x8a, INSTR_VRR_VVVMM0V },
-	{ "vfa", 0xe3, INSTR_VRR_VVV00MM },
-	{ "wfc", 0xcb, INSTR_VRR_VV000MM },
-	{ "wfk", 0xca, INSTR_VRR_VV000MM },
-	{ "vfce", 0xe8, INSTR_VRR_VVV0MMM },
-	{ "vfch", 0xeb, INSTR_VRR_VVV0MMM },
-	{ "vfche", 0xea, INSTR_VRR_VVV0MMM },
-	{ "vcdg", 0xc3, INSTR_VRR_VV00MMM },
-	{ "vcdlg", 0xc1, INSTR_VRR_VV00MMM },
-	{ "vcgd", 0xc2, INSTR_VRR_VV00MMM },
-	{ "vclgd", 0xc0, INSTR_VRR_VV00MMM },
-	{ "vfd", 0xe5, INSTR_VRR_VVV00MM },
-	{ "vfi", 0xc7, INSTR_VRR_VV00MMM },
-	{ "vlde", 0xc4, INSTR_VRR_VV000MM },
-	{ "vled", 0xc5, INSTR_VRR_VV00MMM },
-	{ "vfm", 0xe7, INSTR_VRR_VVV00MM },
-	{ "vfma", 0x8f, INSTR_VRR_VVVM0MV },
-	{ "vfms", 0x8e, INSTR_VRR_VVVM0MV },
-	{ "vfpso", 0xcc, INSTR_VRR_VV00MMM },
-	{ "vfsq", 0xce, INSTR_VRR_VV000MM },
-	{ "vfs", 0xe2, INSTR_VRR_VVV00MM },
-	{ "vftci", 0x4a, INSTR_VRI_VVIMM },
-};
-
-static struct s390_insn opcode_eb[] = {
-	{ "lmg", 0x04, INSTR_RSY_RRRD },
-	{ "srag", 0x0a, INSTR_RSY_RRRD },
-	{ "slag", 0x0b, INSTR_RSY_RRRD },
-	{ "srlg", 0x0c, INSTR_RSY_RRRD },
-	{ "sllg", 0x0d, INSTR_RSY_RRRD },
-	{ "tracg", 0x0f, INSTR_RSY_RRRD },
-	{ "csy", 0x14, INSTR_RSY_RRRD },
-	{ "rllg", 0x1c, INSTR_RSY_RRRD },
-	{ "clmh", 0x20, INSTR_RSY_RURD },
-	{ "clmy", 0x21, INSTR_RSY_RURD },
-	{ "clt", 0x23, INSTR_RSY_RURD },
-	{ "stmg", 0x24, INSTR_RSY_RRRD },
-	{ "stctg", 0x25, INSTR_RSY_CCRD },
-	{ "stmh", 0x26, INSTR_RSY_RRRD },
-	{ "clgt", 0x2b, INSTR_RSY_RURD },
-	{ "stcmh", 0x2c, INSTR_RSY_RURD },
-	{ "stcmy", 0x2d, INSTR_RSY_RURD },
-	{ "lctlg", 0x2f, INSTR_RSY_CCRD },
-	{ "csg", 0x30, INSTR_RSY_RRRD },
-	{ "cdsy", 0x31, INSTR_RSY_RRRD },
-	{ "cdsg", 0x3e, INSTR_RSY_RRRD },
-	{ "bxhg", 0x44, INSTR_RSY_RRRD },
-	{ "bxleg", 0x45, INSTR_RSY_RRRD },
-	{ "ecag", 0x4c, INSTR_RSY_RRRD },
-	{ "tmy", 0x51, INSTR_SIY_URD },
-	{ "mviy", 0x52, INSTR_SIY_URD },
-	{ "niy", 0x54, INSTR_SIY_URD },
-	{ "cliy", 0x55, INSTR_SIY_URD },
-	{ "oiy", 0x56, INSTR_SIY_URD },
-	{ "xiy", 0x57, INSTR_SIY_URD },
-	{ "asi", 0x6a, INSTR_SIY_IRD },
-	{ "alsi", 0x6e, INSTR_SIY_IRD },
-	{ "agsi", 0x7a, INSTR_SIY_IRD },
-	{ "algsi", 0x7e, INSTR_SIY_IRD },
-	{ "icmh", 0x80, INSTR_RSY_RURD },
-	{ "icmy", 0x81, INSTR_RSY_RURD },
-	{ "clclu", 0x8f, INSTR_RSY_RRRD },
-	{ "stmy", 0x90, INSTR_RSY_RRRD },
-	{ "lmh", 0x96, INSTR_RSY_RRRD },
-	{ "lmy", 0x98, INSTR_RSY_RRRD },
-	{ "lamy", 0x9a, INSTR_RSY_AARD },
-	{ "stamy", 0x9b, INSTR_RSY_AARD },
-	{ { 0, LONG_INSN_PCISTB }, 0xd0, INSTR_RSY_RRRD },
-	{ "sic", 0xd1, INSTR_RSY_RRRD },
-	{ "srak", 0xdc, INSTR_RSY_RRRD },
-	{ "slak", 0xdd, INSTR_RSY_RRRD },
-	{ "srlk", 0xde, INSTR_RSY_RRRD },
-	{ "sllk", 0xdf, INSTR_RSY_RRRD },
-	{ "locg", 0xe2, INSTR_RSY_RDRM },
-	{ "stocg", 0xe3, INSTR_RSY_RDRM },
-	{ "lang", 0xe4, INSTR_RSY_RRRD },
-	{ "laog", 0xe6, INSTR_RSY_RRRD },
-	{ "laxg", 0xe7, INSTR_RSY_RRRD },
-	{ "laag", 0xe8, INSTR_RSY_RRRD },
-	{ "laalg", 0xea, INSTR_RSY_RRRD },
-	{ "loc", 0xf2, INSTR_RSY_RDRM },
-	{ "stoc", 0xf3, INSTR_RSY_RDRM },
-	{ "lan", 0xf4, INSTR_RSY_RRRD },
-	{ "lao", 0xf6, INSTR_RSY_RRRD },
-	{ "lax", 0xf7, INSTR_RSY_RRRD },
-	{ "laa", 0xf8, INSTR_RSY_RRRD },
-	{ "laal", 0xfa, INSTR_RSY_RRRD },
-	{ "lric", 0x60, INSTR_RSY_RDRM },
-	{ "stric", 0x61, INSTR_RSY_RDRM },
-	{ "mric", 0x62, INSTR_RSY_RDRM },
-	{ { 0, LONG_INSN_STCCTM }, 0x17, INSTR_RSY_RMRD },
-	{ "rll", 0x1d, INSTR_RSY_RRRD },
-	{ "mvclu", 0x8e, INSTR_RSY_RRRD },
-	{ "tp", 0xc0, INSTR_RSL_R0RD },
-	{ "", 0, INSTR_INVALID }
+	[VX_12]	 = {  4, 12, OPERAND_INDEX | OPERAND_VR },
+	[V_8]	 = {  4,  8, OPERAND_VR },
+	[V_12]	 = {  4, 12, OPERAND_VR },
+	[V_16]	 = {  4, 16, OPERAND_VR },
+	[V_32]	 = {  4, 32, OPERAND_VR },
+	[X_12]	 = {  4, 12, OPERAND_INDEX | OPERAND_GPR },
 };
 
-static struct s390_insn opcode_ec[] = {
-	{ "brxhg", 0x44, INSTR_RIE_RRP },
-	{ "brxlg", 0x45, INSTR_RIE_RRP },
-	{ { 0, LONG_INSN_RISBLG }, 0x51, INSTR_RIE_RRUUU },
-	{ "rnsbg", 0x54, INSTR_RIE_RRUUU },
-	{ "risbg", 0x55, INSTR_RIE_RRUUU },
-	{ "rosbg", 0x56, INSTR_RIE_RRUUU },
-	{ "rxsbg", 0x57, INSTR_RIE_RRUUU },
-	{ { 0, LONG_INSN_RISBGN }, 0x59, INSTR_RIE_RRUUU },
-	{ { 0, LONG_INSN_RISBHG }, 0x5D, INSTR_RIE_RRUUU },
-	{ "cgrj", 0x64, INSTR_RIE_RRPU },
-	{ "clgrj", 0x65, INSTR_RIE_RRPU },
-	{ "cgit", 0x70, INSTR_RIE_R0IU },
-	{ "clgit", 0x71, INSTR_RIE_R0UU },
-	{ "cit", 0x72, INSTR_RIE_R0IU },
-	{ "clfit", 0x73, INSTR_RIE_R0UU },
-	{ "crj", 0x76, INSTR_RIE_RRPU },
-	{ "clrj", 0x77, INSTR_RIE_RRPU },
-	{ "cgij", 0x7c, INSTR_RIE_RUPI },
-	{ "clgij", 0x7d, INSTR_RIE_RUPU },
-	{ "cij", 0x7e, INSTR_RIE_RUPI },
-	{ "clij", 0x7f, INSTR_RIE_RUPU },
-	{ "ahik", 0xd8, INSTR_RIE_RRI0 },
-	{ "aghik", 0xd9, INSTR_RIE_RRI0 },
-	{ { 0, LONG_INSN_ALHSIK }, 0xda, INSTR_RIE_RRI0 },
-	{ { 0, LONG_INSN_ALGHSIK }, 0xdb, INSTR_RIE_RRI0 },
-	{ "cgrb", 0xe4, INSTR_RRS_RRRDU },
-	{ "clgrb", 0xe5, INSTR_RRS_RRRDU },
-	{ "crb", 0xf6, INSTR_RRS_RRRDU },
-	{ "clrb", 0xf7, INSTR_RRS_RRRDU },
-	{ "cgib", 0xfc, INSTR_RIS_RURDI },
-	{ "clgib", 0xfd, INSTR_RIS_RURDU },
-	{ "cib", 0xfe, INSTR_RIS_RURDI },
-	{ "clib", 0xff, INSTR_RIS_RURDU },
-	{ "", 0, INSTR_INVALID }
+static const unsigned char formats[][6] = {
+	[INSTR_E]	     = { 0, 0, 0, 0, 0, 0 },
+	[INSTR_IE_UU]	     = { U4_24, U4_28, 0, 0, 0, 0 },
+	[INSTR_MII_UPP]	     = { U4_8, J12_12, J24_24 },
+	[INSTR_RIE_R0IU]     = { R_8, I16_16, U4_32, 0, 0, 0 },
+	[INSTR_RIE_R0UU]     = { R_8, U16_16, U4_32, 0, 0, 0 },
+	[INSTR_RIE_RRI0]     = { R_8, R_12, I16_16, 0, 0, 0 },
+	[INSTR_RIE_RRP]	     = { R_8, R_12, J16_16, 0, 0, 0 },
+	[INSTR_RIE_RRPU]     = { R_8, R_12, U4_32, J16_16, 0, 0 },
+	[INSTR_RIE_RRUUU]    = { R_8, R_12, U8_16, U8_24, U8_32, 0 },
+	[INSTR_RIE_RUI0]     = { R_8, I16_16, U4_12, 0, 0, 0 },
+	[INSTR_RIE_RUPI]     = { R_8, I8_32, U4_12, J16_16, 0, 0 },
+	[INSTR_RIE_RUPU]     = { R_8, U8_32, U4_12, J16_16, 0, 0 },
+	[INSTR_RIL_RI]	     = { R_8, I32_16, 0, 0, 0, 0 },
+	[INSTR_RIL_RP]	     = { R_8, J32_16, 0, 0, 0, 0 },
+	[INSTR_RIL_RU]	     = { R_8, U32_16, 0, 0, 0, 0 },
+	[INSTR_RIL_UP]	     = { U4_8, J32_16, 0, 0, 0, 0 },
+	[INSTR_RIS_RURDI]    = { R_8, I8_32, U4_12, D_20, B_16, 0 },
+	[INSTR_RIS_RURDU]    = { R_8, U8_32, U4_12, D_20, B_16, 0 },
+	[INSTR_RI_RI]	     = { R_8, I16_16, 0, 0, 0, 0 },
+	[INSTR_RI_RP]	     = { R_8, J16_16, 0, 0, 0, 0 },
+	[INSTR_RI_RU]	     = { R_8, U16_16, 0, 0, 0, 0 },
+	[INSTR_RI_UP]	     = { U4_8, J16_16, 0, 0, 0, 0 },
+	[INSTR_RRE_00]	     = { 0, 0, 0, 0, 0, 0 },
+	[INSTR_RRE_AA]	     = { A_24, A_28, 0, 0, 0, 0 },
+	[INSTR_RRE_AR]	     = { A_24, R_28, 0, 0, 0, 0 },
+	[INSTR_RRE_F0]	     = { F_24, 0, 0, 0, 0, 0 },
+	[INSTR_RRE_FF]	     = { F_24, F_28, 0, 0, 0, 0 },
+	[INSTR_RRE_FR]	     = { F_24, R_28, 0, 0, 0, 0 },
+	[INSTR_RRE_R0]	     = { R_24, 0, 0, 0, 0, 0 },
+	[INSTR_RRE_RA]	     = { R_24, A_28, 0, 0, 0, 0 },
+	[INSTR_RRE_RF]	     = { R_24, F_28, 0, 0, 0, 0 },
+	[INSTR_RRE_RR]	     = { R_24, R_28, 0, 0, 0, 0 },
+	[INSTR_RRF_0UFF]     = { F_24, F_28, U4_20, 0, 0, 0 },
+	[INSTR_RRF_0URF]     = { R_24, F_28, U4_20, 0, 0, 0 },
+	[INSTR_RRF_F0FF]     = { F_16, F_24, F_28, 0, 0, 0 },
+	[INSTR_RRF_F0FF2]    = { F_24, F_16, F_28, 0, 0, 0 },
+	[INSTR_RRF_F0FR]     = { F_24, F_16, R_28, 0, 0, 0 },
+	[INSTR_RRF_FFRU]     = { F_24, F_16, R_28, U4_20, 0, 0 },
+	[INSTR_RRF_FUFF]     = { F_24, F_16, F_28, U4_20, 0, 0 },
+	[INSTR_RRF_FUFF2]    = { F_24, F_28, F_16, U4_20, 0, 0 },
+	[INSTR_RRF_R0RR]     = { R_24, R_16, R_28, 0, 0, 0 },
+	[INSTR_RRF_R0RR2]    = { R_24, R_28, R_16, 0, 0, 0 },
+	[INSTR_RRF_RURR]     = { R_24, R_28, R_16, U4_20, 0, 0 },
+	[INSTR_RRF_RURR2]    = { R_24, R_16, R_28, U4_20, 0, 0 },
+	[INSTR_RRF_U0FF]     = { F_24, U4_16, F_28, 0, 0, 0 },
+	[INSTR_RRF_U0RF]     = { R_24, U4_16, F_28, 0, 0, 0 },
+	[INSTR_RRF_U0RR]     = { R_24, R_28, U4_16, 0, 0, 0 },
+	[INSTR_RRF_UUFF]     = { F_24, U4_16, F_28, U4_20, 0, 0 },
+	[INSTR_RRF_UUFR]     = { F_24, U4_16, R_28, U4_20, 0, 0 },
+	[INSTR_RRF_UURF]     = { R_24, U4_16, F_28, U4_20, 0, 0 },
+	[INSTR_RRS_RRRDU]    = { R_8, R_12, U4_32, D_20, B_16 },
+	[INSTR_RR_FF]	     = { F_8, F_12, 0, 0, 0, 0 },
+	[INSTR_RR_R0]	     = { R_8,  0, 0, 0, 0, 0 },
+	[INSTR_RR_RR]	     = { R_8, R_12, 0, 0, 0, 0 },
+	[INSTR_RR_U0]	     = { U8_8,	0, 0, 0, 0, 0 },
+	[INSTR_RR_UR]	     = { U4_8, R_12, 0, 0, 0, 0 },
+	[INSTR_RSI_RRP]	     = { R_8, R_12, J16_16, 0, 0, 0 },
+	[INSTR_RSL_LRDFU]    = { F_32, D_20, L8_8, B_16, U4_36, 0 },
+	[INSTR_RSL_R0RD]     = { D_20, L4_8, B_16, 0, 0, 0 },
+	[INSTR_RSY_AARD]     = { A_8, A_12, D20_20, B_16, 0, 0 },
+	[INSTR_RSY_CCRD]     = { C_8, C_12, D20_20, B_16, 0, 0 },
+	[INSTR_RSY_RDRU]     = { R_8, D20_20, B_16, U4_12, 0, 0 },
+	[INSTR_RSY_RRRD]     = { R_8, R_12, D20_20, B_16, 0, 0 },
+	[INSTR_RSY_RURD]     = { R_8, U4_12, D20_20, B_16, 0, 0 },
+	[INSTR_RSY_RURD2]    = { R_8, D20_20, B_16, U4_12, 0, 0 },
+	[INSTR_RS_AARD]	     = { A_8, A_12, D_20, B_16, 0, 0 },
+	[INSTR_RS_CCRD]	     = { C_8, C_12, D_20, B_16, 0, 0 },
+	[INSTR_RS_R0RD]	     = { R_8, D_20, B_16, 0, 0, 0 },
+	[INSTR_RS_RRRD]	     = { R_8, R_12, D_20, B_16, 0, 0 },
+	[INSTR_RS_RURD]	     = { R_8, U4_12, D_20, B_16, 0, 0 },
+	[INSTR_RXE_FRRD]     = { F_8, D_20, X_12, B_16, 0, 0 },
+	[INSTR_RXE_RRRDU]    = { R_8, D_20, X_12, B_16, U4_32, 0 },
+	[INSTR_RXF_FRRDF]    = { F_32, F_8, D_20, X_12, B_16, 0 },
+	[INSTR_RXY_FRRD]     = { F_8, D20_20, X_12, B_16, 0, 0 },
+	[INSTR_RXY_RRRD]     = { R_8, D20_20, X_12, B_16, 0, 0 },
+	[INSTR_RXY_URRD]     = { U4_8, D20_20, X_12, B_16, 0, 0 },
+	[INSTR_RX_FRRD]	     = { F_8, D_20, X_12, B_16, 0, 0 },
+	[INSTR_RX_RRRD]	     = { R_8, D_20, X_12, B_16, 0, 0 },
+	[INSTR_RX_URRD]	     = { U4_8, D_20, X_12, B_16, 0, 0 },
+	[INSTR_SIL_RDI]	     = { D_20, B_16, I16_32, 0, 0, 0 },
+	[INSTR_SIL_RDU]	     = { D_20, B_16, U16_32, 0, 0, 0 },
+	[INSTR_SIY_IRD]	     = { D20_20, B_16, I8_8, 0, 0, 0 },
+	[INSTR_SIY_URD]	     = { D20_20, B_16, U8_8, 0, 0, 0 },
+	[INSTR_SI_RD]	     = { D_20, B_16, 0, 0, 0, 0 },
+	[INSTR_SI_URD]	     = { D_20, B_16, U8_8, 0, 0, 0 },
+	[INSTR_SMI_U0RDP]    = { U4_8, J16_32, D_20, B_16, 0, 0 },
+	[INSTR_SSE_RDRD]     = { D_20, B_16, D_36, B_32, 0, 0 },
+	[INSTR_SSF_RRDRD]    = { D_20, B_16, D_36, B_32, R_8, 0 },
+	[INSTR_SSF_RRDRD2]   = { R_8, D_20, B_16, D_36, B_32, 0 },
+	[INSTR_SS_L0RDRD]    = { D_20, L8_8, B_16, D_36, B_32, 0 },
+	[INSTR_SS_L2RDRD]    = { D_20, B_16, D_36, L8_8, B_32, 0 },
+	[INSTR_SS_LIRDRD]    = { D_20, L4_8, B_16, D_36, B_32, U4_12 },
+	[INSTR_SS_LLRDRD]    = { D_20, L4_8, B_16, D_36, L4_12, B_32 },
+	[INSTR_SS_RRRDRD]    = { D_20, R_8, B_16, D_36, B_32, R_12 },
+	[INSTR_SS_RRRDRD2]   = { R_8, D_20, B_16, R_12, D_36, B_32 },
+	[INSTR_SS_RRRDRD3]   = { R_8, R_12, D_20, B_16, D_36, B_32 },
+	[INSTR_S_00]	     = { 0, 0, 0, 0, 0, 0 },
+	[INSTR_S_RD]	     = { D_20, B_16, 0, 0, 0, 0 },
+	[INSTR_VRI_V0IU]     = { V_8, I16_16, U4_32, 0, 0, 0 },
+	[INSTR_VRI_V0U]	     = { V_8, U16_16, 0, 0, 0, 0 },
+	[INSTR_VRI_V0UU2]    = { V_8, U16_16, U4_32, 0, 0, 0 },
+	[INSTR_VRI_V0UUU]    = { V_8, U8_16, U8_24, U4_32, 0, 0 },
+	[INSTR_VRI_VR0UU]    = { V_8, R_12, U8_28, U4_24, 0, 0 },
+	[INSTR_VRI_VVUU]     = { V_8, V_12, U16_16, U4_32, 0, 0 },
+	[INSTR_VRI_VVUUU]    = { V_8, V_12, U12_16, U4_32, U4_28, 0 },
+	[INSTR_VRI_VVUUU2]   = { V_8, V_12, U8_28, U8_16, U4_24, 0 },
+	[INSTR_VRI_VVV0U]    = { V_8, V_12, V_16, U8_24, 0, 0 },
+	[INSTR_VRI_VVV0UU]   = { V_8, V_12, V_16, U8_24, U4_32, 0 },
+	[INSTR_VRI_VVV0UU2]  = { V_8, V_12, V_16, U8_28, U4_24, 0 },
+	[INSTR_VRR_0V]	     = { V_12, 0, 0, 0, 0, 0 },
+	[INSTR_VRR_0VV0U]    = { V_12, V_16, U4_24, 0, 0, 0 },
+	[INSTR_VRR_RV0U]     = { R_8, V_12, U4_24, 0, 0, 0 },
+	[INSTR_VRR_VRR]	     = { V_8, R_12, R_16, 0, 0, 0 },
+	[INSTR_VRR_VV]	     = { V_8, V_12, 0, 0, 0, 0 },
+	[INSTR_VRR_VV0U]     = { V_8, V_12, U4_32, 0, 0, 0 },
+	[INSTR_VRR_VV0U0U]   = { V_8, V_12, U4_32, U4_24, 0, 0 },
+	[INSTR_VRR_VV0UU2]   = { V_8, V_12, U4_32, U4_28, 0, 0 },
+	[INSTR_VRR_VV0UUU]   = { V_8, V_12, U4_32, U4_28, U4_24, 0 },
+	[INSTR_VRR_VVV]	     = { V_8, V_12, V_16, 0, 0, 0 },
+	[INSTR_VRR_VVV0U]    = { V_8, V_12, V_16, U4_32, 0, 0 },
+	[INSTR_VRR_VVV0U0U]  = { V_8, V_12, V_16, U4_32, U4_24, 0 },
+	[INSTR_VRR_VVV0UU]   = { V_8, V_12, V_16, U4_32, U4_28, 0 },
+	[INSTR_VRR_VVV0UUU]  = { V_8, V_12, V_16, U4_32, U4_28, U4_24 },
+	[INSTR_VRR_VVV0V]    = { V_8, V_12, V_16, V_32, 0, 0 },
+	[INSTR_VRR_VVVU0UV]  = { V_8, V_12, V_16, V_32, U4_28, U4_20 },
+	[INSTR_VRR_VVVU0V]   = { V_8, V_12, V_16, V_32, U4_20, 0 },
+	[INSTR_VRR_VVVUU0V]  = { V_8, V_12, V_16, V_32, U4_20, U4_24 },
+	[INSTR_VRS_RRDV]     = { V_32, R_12, D_20, B_16, 0, 0 },
+	[INSTR_VRS_RVRDU]    = { R_8, V_12, D_20, B_16, U4_32, 0 },
+	[INSTR_VRS_VRRD]     = { V_8, R_12, D_20, B_16, 0, 0 },
+	[INSTR_VRS_VRRDU]    = { V_8, R_12, D_20, B_16, U4_32, 0 },
+	[INSTR_VRS_VVRD]     = { V_8, V_12, D_20, B_16, 0, 0 },
+	[INSTR_VRS_VVRDU]    = { V_8, V_12, D_20, B_16, U4_32, 0 },
+	[INSTR_VRV_VVXRDU]   = { V_8, D_20, VX_12, B_16, U4_32, 0 },
+	[INSTR_VRX_VRRD]     = { V_8, D_20, X_12, B_16, 0, 0 },
+	[INSTR_VRX_VRRDU]    = { V_8, D_20, X_12, B_16, U4_32, 0 },
+	[INSTR_VRX_VV]	     = { V_8, V_12, 0, 0, 0, 0 },
+	[INSTR_VSI_URDV]     = { V_32, D_20, B_16, U8_8, 0, 0 },
 };
 
-static struct s390_insn opcode_ed[] = {
-	{ "mayl", 0x38, INSTR_RXF_FRRDF },
-	{ "myl", 0x39, INSTR_RXF_FRRDF },
-	{ "may", 0x3a, INSTR_RXF_FRRDF },
-	{ "my", 0x3b, INSTR_RXF_FRRDF },
-	{ "mayh", 0x3c, INSTR_RXF_FRRDF },
-	{ "myh", 0x3d, INSTR_RXF_FRRDF },
-	{ "sldt", 0x40, INSTR_RXF_FRRDF },
-	{ "srdt", 0x41, INSTR_RXF_FRRDF },
-	{ "slxt", 0x48, INSTR_RXF_FRRDF },
-	{ "srxt", 0x49, INSTR_RXF_FRRDF },
-	{ "tdcet", 0x50, INSTR_RXE_FRRD },
-	{ "tdget", 0x51, INSTR_RXE_FRRD },
-	{ "tdcdt", 0x54, INSTR_RXE_FRRD },
-	{ "tdgdt", 0x55, INSTR_RXE_FRRD },
-	{ "tdcxt", 0x58, INSTR_RXE_FRRD },
-	{ "tdgxt", 0x59, INSTR_RXE_FRRD },
-	{ "ley", 0x64, INSTR_RXY_FRRD },
-	{ "ldy", 0x65, INSTR_RXY_FRRD },
-	{ "stey", 0x66, INSTR_RXY_FRRD },
-	{ "stdy", 0x67, INSTR_RXY_FRRD },
-	{ "czdt", 0xa8, INSTR_RSL_LRDFU },
-	{ "czxt", 0xa9, INSTR_RSL_LRDFU },
-	{ "cdzt", 0xaa, INSTR_RSL_LRDFU },
-	{ "cxzt", 0xab, INSTR_RSL_LRDFU },
-	{ "ldeb", 0x04, INSTR_RXE_FRRD },
-	{ "lxdb", 0x05, INSTR_RXE_FRRD },
-	{ "lxeb", 0x06, INSTR_RXE_FRRD },
-	{ "mxdb", 0x07, INSTR_RXE_FRRD },
-	{ "keb", 0x08, INSTR_RXE_FRRD },
-	{ "ceb", 0x09, INSTR_RXE_FRRD },
-	{ "aeb", 0x0a, INSTR_RXE_FRRD },
-	{ "seb", 0x0b, INSTR_RXE_FRRD },
-	{ "mdeb", 0x0c, INSTR_RXE_FRRD },
-	{ "deb", 0x0d, INSTR_RXE_FRRD },
-	{ "maeb", 0x0e, INSTR_RXF_FRRDF },
-	{ "mseb", 0x0f, INSTR_RXF_FRRDF },
-	{ "tceb", 0x10, INSTR_RXE_FRRD },
-	{ "tcdb", 0x11, INSTR_RXE_FRRD },
-	{ "tcxb", 0x12, INSTR_RXE_FRRD },
-	{ "sqeb", 0x14, INSTR_RXE_FRRD },
-	{ "sqdb", 0x15, INSTR_RXE_FRRD },
-	{ "meeb", 0x17, INSTR_RXE_FRRD },
-	{ "kdb", 0x18, INSTR_RXE_FRRD },
-	{ "cdb", 0x19, INSTR_RXE_FRRD },
-	{ "adb", 0x1a, INSTR_RXE_FRRD },
-	{ "sdb", 0x1b, INSTR_RXE_FRRD },
-	{ "mdb", 0x1c, INSTR_RXE_FRRD },
-	{ "ddb", 0x1d, INSTR_RXE_FRRD },
-	{ "madb", 0x1e, INSTR_RXF_FRRDF },
-	{ "msdb", 0x1f, INSTR_RXF_FRRDF },
-	{ "lde", 0x24, INSTR_RXE_FRRD },
-	{ "lxd", 0x25, INSTR_RXE_FRRD },
-	{ "lxe", 0x26, INSTR_RXE_FRRD },
-	{ "mae", 0x2e, INSTR_RXF_FRRDF },
-	{ "mse", 0x2f, INSTR_RXF_FRRDF },
-	{ "sqe", 0x34, INSTR_RXE_FRRD },
-	{ "sqd", 0x35, INSTR_RXE_FRRD },
-	{ "mee", 0x37, INSTR_RXE_FRRD },
-	{ "mad", 0x3e, INSTR_RXF_FRRDF },
-	{ "msd", 0x3f, INSTR_RXF_FRRDF },
-	{ "", 0, INSTR_INVALID }
-};
+static char long_insn_name[][7] = LONG_INSN_INITIALIZER;
+static struct s390_insn opcode[] = OPCODE_TABLE_INITIALIZER;
+static struct s390_opcode_offset opcode_offset[] = OPCODE_OFFSET_INITIALIZER;
 
 /* Extracts an operand value from an instruction.  */
 static unsigned int extract_operand(unsigned char *code,
@@ -1777,114 +391,27 @@ static unsigned int extract_operand(unsigned char *code,
 
 struct s390_insn *find_insn(unsigned char *code)
 {
-	unsigned char opfrag = code[1];
-	unsigned char opmask;
-	struct s390_insn *table;
+	struct s390_opcode_offset *entry;
+	struct s390_insn *insn;
+	unsigned char opfrag;
+	int i;
 
-	switch (code[0]) {
-	case 0x01:
-		table = opcode_01;
-		break;
-	case 0xa5:
-		table = opcode_a5;
-		break;
-	case 0xa7:
-		table = opcode_a7;
-		break;
-	case 0xaa:
-		table = opcode_aa;
-		break;
-	case 0xb2:
-		table = opcode_b2;
-		break;
-	case 0xb3:
-		table = opcode_b3;
-		break;
-	case 0xb9:
-		table = opcode_b9;
-		break;
-	case 0xc0:
-		table = opcode_c0;
-		break;
-	case 0xc2:
-		table = opcode_c2;
-		break;
-	case 0xc4:
-		table = opcode_c4;
-		break;
-	case 0xc6:
-		table = opcode_c6;
-		break;
-	case 0xc8:
-		table = opcode_c8;
-		break;
-	case 0xcc:
-		table = opcode_cc;
-		break;
-	case 0xe3:
-		table = opcode_e3;
-		opfrag = code[5];
-		break;
-	case 0xe5:
-		table = opcode_e5;
-		break;
-	case 0xe7:
-		table = opcode_e7;
-		opfrag = code[5];
-		break;
-	case 0xeb:
-		table = opcode_eb;
-		opfrag = code[5];
-		break;
-	case 0xec:
-		table = opcode_ec;
-		opfrag = code[5];
-		break;
-	case 0xed:
-		table = opcode_ed;
-		opfrag = code[5];
-		break;
-	default:
-		table = opcode;
-		opfrag = code[0];
-		break;
-	}
-	while (table->format != INSTR_INVALID) {
-		opmask = formats[table->format][0];
-		if (table->opfrag == (opfrag & opmask))
-			return table;
-		table++;
+	for (i = 0; i < ARRAY_SIZE(opcode_offset); i++) {
+		entry = &opcode_offset[i];
+		if (entry->opcode == code[0] || entry->opcode == 0)
+			break;
 	}
-	return NULL;
-}
 
-/**
- * insn_to_mnemonic - decode an s390 instruction
- * @instruction: instruction to decode
- * @buf: buffer to fill with mnemonic
- * @len: length of buffer
- *
- * Decode the instruction at @instruction and store the corresponding
- * mnemonic into @buf of length @len.
- * @buf is left unchanged if the instruction could not be decoded.
- * Returns:
- *  %0 on success, %-ENOENT if the instruction was not found.
- */
-int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len)
-{
-	struct s390_insn *insn;
+	opfrag = *(code + entry->byte) & entry->mask;
 
-	insn = find_insn(instruction);
-	if (!insn)
-		return -ENOENT;
-	if (insn->name[0] == '\0')
-		snprintf(buf, len, "%s",
-			 long_insn_name[(int) insn->name[1]]);
-	else
-		snprintf(buf, len, "%.5s", insn->name);
-	return 0;
+	insn = &opcode[entry->offset];
+	for (i = 0; i < entry->count; i++) {
+		if (insn->opfrag == opfrag)
+			return insn;
+		insn++;
+	}
+	return NULL;
 }
-EXPORT_SYMBOL_GPL(insn_to_mnemonic);
 
 static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
 {
@@ -1899,14 +426,14 @@ static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
 	ptr = buffer;
 	insn = find_insn(code);
 	if (insn) {
-		if (insn->name[0] == '\0')
-			ptr += sprintf(ptr, "%s\t",
-				       long_insn_name[(int) insn->name[1]]);
+		if (insn->zero == 0)
+			ptr += sprintf(ptr, "%.7s\t",
+				       long_insn_name[insn->offset]);
 		else
 			ptr += sprintf(ptr, "%.5s\t", insn->name);
 		/* Extract the operands. */
 		separator = 0;
-		for (ops = formats[insn->format] + 1, i = 0;
+		for (ops = formats[insn->format], i = 0;
 		     *ops != 0 && i < 6; ops++, i++) {
 			operand = operands + *ops;
 			value = extract_operand(code, operand);
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index ca8cd80e8feb..497a92047591 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007, 2009
  *    Author(s): Hongjie Yang <hongjie@us.ibm.com>,
@@ -30,14 +31,6 @@
 #include <asm/facility.h>
 #include "entry.h"
 
-/*
- * Create a Kernel NSS if the SAVESYS= parameter is defined
- */
-#define DEFSYS_CMD_SIZE		128
-#define SAVESYS_CMD_SIZE	32
-
-char kernel_nss_name[NSS_NAME_SIZE + 1];
-
 static void __init setup_boot_command_line(void);
 
 /*
@@ -58,134 +51,6 @@ static void __init reset_tod_clock(void)
 	S390_lowcore.last_update_clock = TOD_UNIX_EPOCH;
 }
 
-#ifdef CONFIG_SHARED_KERNEL
-int __init savesys_ipl_nss(char *cmd, const int cmdlen);
-
-asm(
-	"	.section .init.text,\"ax\",@progbits\n"
-	"	.align	4\n"
-	"	.type	savesys_ipl_nss, @function\n"
-	"savesys_ipl_nss:\n"
-	"	stmg	6,15,48(15)\n"
-	"	lgr	14,3\n"
-	"	sam31\n"
-	"	diag	2,14,0x8\n"
-	"	sam64\n"
-	"	lgr	2,14\n"
-	"	lmg	6,15,48(15)\n"
-	"	br	14\n"
-	"	.size	savesys_ipl_nss, .-savesys_ipl_nss\n"
-	"	.previous\n");
-
-static __initdata char upper_command_line[COMMAND_LINE_SIZE];
-
-static noinline __init void create_kernel_nss(void)
-{
-	unsigned int i, stext_pfn, eshared_pfn, end_pfn, min_size;
-#ifdef CONFIG_BLK_DEV_INITRD
-	unsigned int sinitrd_pfn, einitrd_pfn;
-#endif
-	int response;
-	int hlen;
-	size_t len;
-	char *savesys_ptr;
-	char defsys_cmd[DEFSYS_CMD_SIZE];
-	char savesys_cmd[SAVESYS_CMD_SIZE];
-
-	/* Do nothing if we are not running under VM */
-	if (!MACHINE_IS_VM)
-		return;
-
-	/* Convert COMMAND_LINE to upper case */
-	for (i = 0; i < strlen(boot_command_line); i++)
-		upper_command_line[i] = toupper(boot_command_line[i]);
-
-	savesys_ptr = strstr(upper_command_line, "SAVESYS=");
-
-	if (!savesys_ptr)
-		return;
-
-	savesys_ptr += 8;    /* Point to the beginning of the NSS name */
-	for (i = 0; i < NSS_NAME_SIZE; i++) {
-		if (savesys_ptr[i] == ' ' || savesys_ptr[i] == '\0')
-			break;
-		kernel_nss_name[i] = savesys_ptr[i];
-	}
-
-	stext_pfn = PFN_DOWN(__pa(&_stext));
-	eshared_pfn = PFN_DOWN(__pa(&_eshared));
-	end_pfn = PFN_UP(__pa(&_end));
-	min_size = end_pfn << 2;
-
-	hlen = snprintf(defsys_cmd, DEFSYS_CMD_SIZE,
-			"DEFSYS %s 00000-%.5X EW %.5X-%.5X SR %.5X-%.5X",
-			kernel_nss_name, stext_pfn - 1, stext_pfn,
-			eshared_pfn - 1, eshared_pfn, end_pfn);
-
-#ifdef CONFIG_BLK_DEV_INITRD
-	if (INITRD_START && INITRD_SIZE) {
-		sinitrd_pfn = PFN_DOWN(__pa(INITRD_START));
-		einitrd_pfn = PFN_UP(__pa(INITRD_START + INITRD_SIZE));
-		min_size = einitrd_pfn << 2;
-		hlen += snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
-				 " EW %.5X-%.5X", sinitrd_pfn, einitrd_pfn);
-	}
-#endif
-
-	snprintf(defsys_cmd + hlen, DEFSYS_CMD_SIZE - hlen,
-		 " EW MINSIZE=%.7iK PARMREGS=0-13", min_size);
-	defsys_cmd[DEFSYS_CMD_SIZE - 1] = '\0';
-	snprintf(savesys_cmd, SAVESYS_CMD_SIZE, "SAVESYS %s \n IPL %s",
-		 kernel_nss_name, kernel_nss_name);
-	savesys_cmd[SAVESYS_CMD_SIZE - 1] = '\0';
-
-	__cpcmd(defsys_cmd, NULL, 0, &response);
-
-	if (response != 0) {
-		pr_err("Defining the Linux kernel NSS failed with rc=%d\n",
-			response);
-		kernel_nss_name[0] = '\0';
-		return;
-	}
-
-	len = strlen(savesys_cmd);
-	ASCEBC(savesys_cmd, len);
-	response = savesys_ipl_nss(savesys_cmd, len);
-
-	/* On success: response is equal to the command size,
-	 *	       max SAVESYS_CMD_SIZE
-	 * On error: response contains the numeric portion of cp error message.
-	 *	     for SAVESYS it will be >= 263
-	 *	     for missing privilege class, it will be 1
-	 */
-	if (response > SAVESYS_CMD_SIZE || response == 1) {
-		pr_err("Saving the Linux kernel NSS failed with rc=%d\n",
-			response);
-		kernel_nss_name[0] = '\0';
-		return;
-	}
-
-	/* re-initialize cputime accounting. */
-	get_tod_clock_ext(tod_clock_base);
-	S390_lowcore.last_update_clock = *(__u64 *) &tod_clock_base[1];
-	S390_lowcore.last_update_timer = 0x7fffffffffffffffULL;
-	S390_lowcore.user_timer = 0;
-	S390_lowcore.system_timer = 0;
-	asm volatile("SPT 0(%0)" : : "a" (&S390_lowcore.last_update_timer));
-
-	/* re-setup boot command line with new ipl vm parms */
-	ipl_update_parameters();
-	setup_boot_command_line();
-
-	ipl_flags = IPL_NSS_VALID;
-}
-
-#else /* CONFIG_SHARED_KERNEL */
-
-static inline void create_kernel_nss(void) { }
-
-#endif /* CONFIG_SHARED_KERNEL */
-
 /*
  * Clear bss memory
  */
@@ -374,8 +239,10 @@ static __init void detect_machine_facilities(void)
 		S390_lowcore.machine_flags |= MACHINE_FLAG_IDTE;
 	if (test_facility(40))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_LPP;
-	if (test_facility(50) && test_facility(73))
+	if (test_facility(50) && test_facility(73)) {
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TE;
+		__ctl_set_bit(0, 55);
+	}
 	if (test_facility(51))
 		S390_lowcore.machine_flags |= MACHINE_FLAG_TLB_LC;
 	if (test_facility(129)) {
@@ -404,18 +271,6 @@ static inline void save_vector_registers(void)
 #endif
 }
 
-static int __init topology_setup(char *str)
-{
-	bool enabled;
-	int rc;
-
-	rc = kstrtobool(str, &enabled);
-	if (!rc && !enabled)
-		S390_lowcore.machine_flags &= ~MACHINE_FLAG_TOPOLOGY;
-	return rc;
-}
-early_param("topology", topology_setup);
-
 static int __init disable_vector_extension(char *str)
 {
 	S390_lowcore.machine_flags &= ~MACHINE_FLAG_VX;
@@ -560,10 +415,6 @@ static void __init setup_boot_command_line(void)
 	append_to_cmdline(append_ipl_scpdata);
 }
 
-/*
- * Save ipl parameters, clear bss memory, initialize storage keys
- * and create a kernel NSS at startup if the SAVESYS= parm is defined
- */
 void __init startup_init(void)
 {
 	reset_tod_clock();
@@ -580,7 +431,6 @@ void __init startup_init(void)
 	setup_arch_string();
 	ipl_update_parameters();
 	setup_boot_command_line();
-	create_kernel_nss();
 	detect_diag9c();
 	detect_diag44();
 	detect_machine_facilities();
diff --git a/arch/s390/kernel/early_printk.c b/arch/s390/kernel/early_printk.c
index 819cb15c67e8..9431784d7796 100644
--- a/arch/s390/kernel/early_printk.c
+++ b/arch/s390/kernel/early_printk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2017
  */
diff --git a/arch/s390/kernel/ebcdic.c b/arch/s390/kernel/ebcdic.c
index 1d5392b36ad8..c15caeab1dbf 100644
--- a/arch/s390/kernel/ebcdic.c
+++ b/arch/s390/kernel/ebcdic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    ECBDIC -> ASCII, ASCII -> ECBDIC,
  *    upper to lower case (EBCDIC) conversion tables.
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 21900e1cee9c..f498d201f98d 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    S390 low-level entry points.
  *
@@ -12,6 +13,7 @@
 #include <linux/linkage.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
+#include <asm/ctl_reg.h>
 #include <asm/errno.h>
 #include <asm/ptrace.h>
 #include <asm/thread_info.h>
@@ -521,12 +523,15 @@ ENTRY(pgm_check_handler)
 	tmhh	%r8,0x0001		# test problem state bit
 	jnz	2f			# -> fault in user space
 #if IS_ENABLED(CONFIG_KVM)
-	# cleanup critical section for sie64a
+	# cleanup critical section for program checks in sie64a
 	lgr	%r14,%r9
 	slg	%r14,BASED(.Lsie_critical_start)
 	clg	%r14,BASED(.Lsie_critical_length)
 	jhe	0f
-	brasl	%r14,.Lcleanup_sie
+	lg	%r14,__SF_EMPTY(%r15)		# get control block pointer
+	ni	__SIE_PROG0C+3(%r14),0xfe	# no longer in SIE
+	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
+	larl	%r9,sie_exit			# skip forward to sie_exit
 #endif
 0:	tmhh	%r8,0x4000		# PER bit set in old PSW ?
 	jnz	1f			# -> enabled, can't be a double fault
@@ -948,15 +953,56 @@ load_fpu_regs:
  */
 ENTRY(mcck_int_handler)
 	STCK	__LC_MCCK_CLOCK
-	la	%r1,4095		# revalidate r1
-	spt	__LC_CPU_TIMER_SAVE_AREA-4095(%r1)	# revalidate cpu timer
-	lmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)# revalidate gprs
+	la	%r1,4095		# validate r1
+	spt	__LC_CPU_TIMER_SAVE_AREA-4095(%r1)	# validate cpu timer
+	sckc	__LC_CLOCK_COMPARATOR			# validate comparator
+	lam	%a0,%a15,__LC_AREGS_SAVE_AREA-4095(%r1) # validate acrs
+	lmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)# validate gprs
 	lg	%r12,__LC_CURRENT
 	larl	%r13,cleanup_critical
 	lmg	%r8,%r9,__LC_MCK_OLD_PSW
 	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_SYSTEM_DAMAGE
 	jo	.Lmcck_panic		# yes -> rest of mcck code invalid
-	lghi	%r14,__LC_CPU_TIMER_SAVE_AREA
+	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_CR_VALID
+	jno	.Lmcck_panic		# control registers invalid -> panic
+	la	%r14,4095
+	lctlg	%c0,%c15,__LC_CREGS_SAVE_AREA-4095(%r14) # validate ctl regs
+	ptlb
+	lg	%r11,__LC_MCESAD-4095(%r14) # extended machine check save area
+	nill	%r11,0xfc00		# MCESA_ORIGIN_MASK
+	TSTMSK	__LC_CREGS_SAVE_AREA+16-4095(%r14),CR2_GUARDED_STORAGE
+	jno	0f
+	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_GS_VALID
+	jno	0f
+	.insn	 rxy,0xe3000000004d,0,__MCESA_GS_SAVE_AREA(%r11) # LGSC
+0:	l	%r14,__LC_FP_CREG_SAVE_AREA-4095(%r14)
+	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_FC_VALID
+	jo	0f
+	sr	%r14,%r14
+0:	sfpc	%r14
+	TSTMSK	__LC_MACHINE_FLAGS,MACHINE_FLAG_VX
+	jo	0f
+	lghi	%r14,__LC_FPREGS_SAVE_AREA
+	ld	%f0,0(%r14)
+	ld	%f1,8(%r14)
+	ld	%f2,16(%r14)
+	ld	%f3,24(%r14)
+	ld	%f4,32(%r14)
+	ld	%f5,40(%r14)
+	ld	%f6,48(%r14)
+	ld	%f7,56(%r14)
+	ld	%f8,64(%r14)
+	ld	%f9,72(%r14)
+	ld	%f10,80(%r14)
+	ld	%f11,88(%r14)
+	ld	%f12,96(%r14)
+	ld	%f13,104(%r14)
+	ld	%f14,112(%r14)
+	ld	%f15,120(%r14)
+	j	1f
+0:	VLM	%v0,%v15,0,%r11
+	VLM	%v16,%v31,256,%r11
+1:	lghi	%r14,__LC_CPU_TIMER_SAVE_AREA
 	mvc	__LC_MCCK_ENTER_TIMER(8),0(%r14)
 	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_CPU_TIMER_VALID
 	jo	3f
@@ -972,9 +1018,13 @@ ENTRY(mcck_int_handler)
 	la	%r14,__LC_LAST_UPDATE_TIMER
 2:	spt	0(%r14)
 	mvc	__LC_MCCK_ENTER_TIMER(8),0(%r14)
-3:	TSTMSK	__LC_MCCK_CODE,(MCCK_CODE_PSW_MWP_VALID|MCCK_CODE_PSW_IA_VALID)
-	jno	.Lmcck_panic		# no -> skip cleanup critical
-	SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+64,__LC_MCCK_ENTER_TIMER
+3:	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_PSW_MWP_VALID
+	jno	.Lmcck_panic
+	tmhh	%r8,0x0001		# interrupting from user ?
+	jnz	4f
+	TSTMSK	__LC_MCCK_CODE,MCCK_CODE_PSW_IA_VALID
+	jno	.Lmcck_panic
+4:	SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+64,__LC_MCCK_ENTER_TIMER
 .Lmcck_skip:
 	lghi	%r14,__LC_GPREGS_SAVE_AREA+64
 	stmg	%r0,%r7,__PT_R0(%r11)
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index dbf5f7e18246..e87758f8fbdc 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ENTRY_H
 #define _ENTRY_H
 
@@ -77,6 +78,7 @@ long sys_s390_runtime_instr(int command, int signum);
 long sys_s390_guarded_storage(int command, struct gs_cb __user *);
 long sys_s390_pci_mmio_write(unsigned long, const void __user *, size_t);
 long sys_s390_pci_mmio_read(unsigned long, void __user *, size_t);
+long sys_s390_sthyi(unsigned long function_code, void __user *buffer, u64 __user *return_code, unsigned long flags);
 
 DECLARE_PER_CPU(u64, mt_cycles[8]);
 
diff --git a/arch/s390/kernel/fpu.c b/arch/s390/kernel/fpu.c
index 1235b9438df4..594464f2129d 100644
--- a/arch/s390/kernel/fpu.c
+++ b/arch/s390/kernel/fpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * In-kernel vector facility support functions
  *
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index d03a6d12c4bd..dc76d813e420 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dynamic function tracer architecture backend.
  *
diff --git a/arch/s390/kernel/guarded_storage.c b/arch/s390/kernel/guarded_storage.c
index 6f064745c3b1..d14dd1c2e524 100644
--- a/arch/s390/kernel/guarded_storage.c
+++ b/arch/s390/kernel/guarded_storage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2016
  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -11,11 +12,10 @@
 #include <asm/guarded_storage.h>
 #include "entry.h"
 
-void exit_thread_gs(void)
+void guarded_storage_release(struct task_struct *tsk)
 {
-	kfree(current->thread.gs_cb);
-	kfree(current->thread.gs_bc_cb);
-	current->thread.gs_cb = current->thread.gs_bc_cb = NULL;
+	kfree(tsk->thread.gs_cb);
+	kfree(tsk->thread.gs_bc_cb);
 }
 
 static int gs_enable(void)
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index 8ed753c72d9b..b86fa3ee4927 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2010
  *
diff --git a/arch/s390/kernel/head64.S b/arch/s390/kernel/head64.S
index 0d8f2a858ced..172002da7075 100644
--- a/arch/s390/kernel/head64.S
+++ b/arch/s390/kernel/head64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999, 2010
  *
diff --git a/arch/s390/kernel/head_kdump.S b/arch/s390/kernel/head_kdump.S
index d05950f02c34..174d6959bf5b 100644
--- a/arch/s390/kernel/head_kdump.S
+++ b/arch/s390/kernel/head_kdump.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * S390 kdump lowlevel functions (new kernel)
  *
diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c
index 9340b2a07935..b9d8fe45737a 100644
--- a/arch/s390/kernel/idle.c
+++ b/arch/s390/kernel/idle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Idle functions for s390.
  *
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 8e622bb52f7a..310e59e6eb4b 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -279,8 +279,6 @@ static __init enum ipl_type get_ipl_type(void)
 {
 	struct ipl_parameter_block *ipl = IPL_PARMBLOCK_START;
 
-	if (ipl_flags & IPL_NSS_VALID)
-		return IPL_TYPE_NSS;
 	if (!(ipl_flags & IPL_DEVNO_VALID))
 		return IPL_TYPE_UNKNOWN;
 	if (!(ipl_flags & IPL_PARMBLOCK_VALID))
@@ -533,22 +531,6 @@ static struct attribute_group ipl_ccw_attr_group_lpar = {
 	.attrs = ipl_ccw_attrs_lpar
 };
 
-/* NSS ipl device attributes */
-
-DEFINE_IPL_ATTR_RO(ipl_nss, name, "%s\n", kernel_nss_name);
-
-static struct attribute *ipl_nss_attrs[] = {
-	&sys_ipl_type_attr.attr,
-	&sys_ipl_nss_name_attr.attr,
-	&sys_ipl_ccw_loadparm_attr.attr,
-	&sys_ipl_vm_parm_attr.attr,
-	NULL,
-};
-
-static struct attribute_group ipl_nss_attr_group = {
-	.attrs = ipl_nss_attrs,
-};
-
 /* UNKNOWN ipl device attributes */
 
 static struct attribute *ipl_unknown_attrs[] = {
@@ -598,9 +580,6 @@ static int __init ipl_init(void)
 	case IPL_TYPE_FCP_DUMP:
 		rc = sysfs_create_group(&ipl_kset->kobj, &ipl_fcp_attr_group);
 		break;
-	case IPL_TYPE_NSS:
-		rc = sysfs_create_group(&ipl_kset->kobj, &ipl_nss_attr_group);
-		break;
 	default:
 		rc = sysfs_create_group(&ipl_kset->kobj,
 					&ipl_unknown_attr_group);
@@ -1172,18 +1151,6 @@ static int __init reipl_nss_init(void)
 		return rc;
 
 	reipl_block_ccw_init(reipl_block_nss);
-	if (ipl_info.type == IPL_TYPE_NSS) {
-		memset(reipl_block_nss->ipl_info.ccw.nss_name,
-			' ', NSS_NAME_SIZE);
-		memcpy(reipl_block_nss->ipl_info.ccw.nss_name,
-			kernel_nss_name, strlen(kernel_nss_name));
-		ASCEBC(reipl_block_nss->ipl_info.ccw.nss_name, NSS_NAME_SIZE);
-		reipl_block_nss->ipl_info.ccw.vm_flags |=
-			DIAG308_VM_FLAGS_NSS_VALID;
-
-		reipl_block_ccw_fill_parms(reipl_block_nss);
-	}
-
 	reipl_capabilities |= IPL_TYPE_NSS;
 	return 0;
 }
@@ -1971,9 +1938,6 @@ void __init setup_ipl(void)
 		ipl_info.data.fcp.lun = IPL_PARMBLOCK_START->ipl_info.fcp.lun;
 		break;
 	case IPL_TYPE_NSS:
-		strncpy(ipl_info.data.nss.name, kernel_nss_name,
-			sizeof(ipl_info.data.nss.name));
-		break;
 	case IPL_TYPE_UNKNOWN:
 		/* We have no info to copy */
 		break;
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index a2fdff0e730b..94f2099bceb0 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2004, 2011
  *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c
index 262506cee4c3..43f8430fb67d 100644
--- a/arch/s390/kernel/jump_label.c
+++ b/arch/s390/kernel/jump_label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Jump label s390 support
  *
diff --git a/arch/s390/kernel/kdebugfs.c b/arch/s390/kernel/kdebugfs.c
index ee85e17dd79d..2c46bd6c6fd2 100644
--- a/arch/s390/kernel/kdebugfs.c
+++ b/arch/s390/kernel/kdebugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/debugfs.h>
 #include <linux/export.h>
 #include <linux/init.h>
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 6842e4501e2e..1a6521af1751 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -161,8 +161,6 @@ struct swap_insn_args {
 
 static int swap_instruction(void *data)
 {
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	unsigned long status = kcb->kprobe_status;
 	struct swap_insn_args *args = data;
 	struct ftrace_insn new_insn, *insn;
 	struct kprobe *p = args->p;
@@ -185,9 +183,7 @@ static int swap_instruction(void *data)
 			ftrace_generate_nop_insn(&new_insn);
 	}
 skip_ftrace:
-	kcb->kprobe_status = KPROBE_SWAP_INST;
 	s390_kernel_write(p->addr, &new_insn, len);
-	kcb->kprobe_status = status;
 	return 0;
 }
 NOKPROBE_SYMBOL(swap_instruction);
@@ -574,9 +570,6 @@ static int kprobe_trap_handler(struct pt_regs *regs, int trapnr)
 	const struct exception_table_entry *entry;
 
 	switch(kcb->kprobe_status) {
-	case KPROBE_SWAP_INST:
-		/* We are here because the instruction replacement failed */
-		return 0;
 	case KPROBE_HIT_SS:
 	case KPROBE_REENTER:
 		/*
diff --git a/arch/s390/kernel/lgr.c b/arch/s390/kernel/lgr.c
index ae7dff110054..bf9622f0e6b1 100644
--- a/arch/s390/kernel/lgr.c
+++ b/arch/s390/kernel/lgr.c
@@ -153,14 +153,13 @@ static void lgr_timer_set(void);
 /*
  * LGR timer callback
  */
-static void lgr_timer_fn(unsigned long ignored)
+static void lgr_timer_fn(struct timer_list *unused)
 {
 	lgr_info_log();
 	lgr_timer_set();
 }
 
-static struct timer_list lgr_timer =
-	TIMER_DEFERRED_INITIALIZER(lgr_timer_fn, 0, 0);
+static struct timer_list lgr_timer;
 
 /*
  * Setup next LGR timer
@@ -181,6 +180,7 @@ static int __init lgr_init(void)
 	debug_register_view(lgr_dbf, &debug_hex_ascii_view);
 	lgr_info_get(&lgr_info_last);
 	debug_event(lgr_dbf, 1, &lgr_info_last, sizeof(lgr_info_last));
+	timer_setup(&lgr_timer, lgr_timer_fn, TIMER_DEFERRABLE);
 	lgr_timer_set();
 	return 0;
 }
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 3d0b14afa232..a80050bbe2e4 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2005, 2011
  *
@@ -105,7 +106,7 @@ static void __do_machine_kdump(void *image)
 static noinline void __machine_kdump(void *image)
 {
 	struct mcesa *mcesa;
-	unsigned long cr2_old, cr2_new;
+	union ctlreg2 cr2_old, cr2_new;
 	int this_cpu, cpu;
 
 	lgr_info_log();
@@ -122,11 +123,12 @@ static noinline void __machine_kdump(void *image)
 	if (MACHINE_HAS_VX)
 		save_vx_regs((__vector128 *) mcesa->vector_save_area);
 	if (MACHINE_HAS_GS) {
-		__ctl_store(cr2_old, 2, 2);
-		cr2_new = cr2_old | (1UL << 4);
-		__ctl_load(cr2_new, 2, 2);
+		__ctl_store(cr2_old.val, 2, 2);
+		cr2_new = cr2_old;
+		cr2_new.gse = 1;
+		__ctl_load(cr2_new.val, 2, 2);
 		save_gs_cb((struct gs_cb *) mcesa->guarded_storage_save_area);
-		__ctl_load(cr2_old, 2, 2);
+		__ctl_load(cr2_old.val, 2, 2);
 	}
 	/*
 	 * To create a good backchain for this CPU in the dump store_status
@@ -144,7 +146,7 @@ static noinline void __machine_kdump(void *image)
 /*
  * Check if kdump checksums are valid: We call purgatory with parameter "0"
  */
-static int kdump_csum_valid(struct kimage *image)
+static bool kdump_csum_valid(struct kimage *image)
 {
 #ifdef CONFIG_CRASH_DUMP
 	int (*start_kdump)(int) = (void *)image->start;
@@ -153,9 +155,9 @@ static int kdump_csum_valid(struct kimage *image)
 	__arch_local_irq_stnsm(0xfb); /* disable DAT */
 	rc = start_kdump(0);
 	__arch_local_irq_stosm(0x04); /* enable DAT */
-	return rc ? 0 : -EINVAL;
+	return rc == 0;
 #else
-	return -EINVAL;
+	return false;
 #endif
 }
 
@@ -218,10 +220,6 @@ int machine_kexec_prepare(struct kimage *image)
 {
 	void *reboot_code_buffer;
 
-	/* Can't replace kernel image since it is read-only. */
-	if (ipl_flags & IPL_NSS_VALID)
-		return -EOPNOTSUPP;
-
 	if (image->type == KEXEC_TYPE_CRASH)
 		return machine_kexec_prepare_kdump();
 
@@ -268,6 +266,7 @@ static void __do_machine_kexec(void *data)
 	s390_reset_system();
 	data_mover = (relocate_kernel_t) page_to_phys(image->control_code_page);
 
+	__arch_local_irq_stnsm(0xfb); /* disable DAT - avoid no-execute */
 	/* Call the moving routine */
 	(*data_mover)(&image->head, image->start);
 
diff --git a/arch/s390/kernel/mcount.S b/arch/s390/kernel/mcount.S
index 9a17e4475d27..82df7d80fab2 100644
--- a/arch/s390/kernel/mcount.S
+++ b/arch/s390/kernel/mcount.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2008, 2009
  *
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 1a27f307a920..6d9f73bb4142 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -31,6 +31,7 @@
 #include <linux/kernel.h>
 #include <linux/moduleloader.h>
 #include <linux/bug.h>
+#include <asm/alternative.h>
 
 #if 0
 #define DEBUGP printk
@@ -429,6 +430,22 @@ int module_finalize(const Elf_Ehdr *hdr,
 		    const Elf_Shdr *sechdrs,
 		    struct module *me)
 {
+	const Elf_Shdr *s;
+	char *secstrings;
+
+	if (IS_ENABLED(CONFIG_ALTERNATIVES)) {
+		secstrings = (void *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+		for (s = sechdrs; s < sechdrs + hdr->e_shnum; s++) {
+			if (!strcmp(".altinstructions",
+				    secstrings + s->sh_name)) {
+				/* patch .altinstructions */
+				void *aseg = (void *)s->sh_addr;
+
+				apply_alternatives(aseg, aseg + s->sh_size);
+			}
+		}
+	}
+
 	jump_label_apply_nops(me);
 	return 0;
 }
diff --git a/arch/s390/kernel/nmi.c b/arch/s390/kernel/nmi.c
index 31d03a84126c..3f3cda41f32a 100644
--- a/arch/s390/kernel/nmi.c
+++ b/arch/s390/kernel/nmi.c
@@ -12,6 +12,9 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/hardirq.h>
+#include <linux/log2.h>
+#include <linux/kprobes.h>
+#include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/module.h>
 #include <linux/sched/signal.h>
@@ -37,13 +40,94 @@ struct mcck_struct {
 };
 
 static DEFINE_PER_CPU(struct mcck_struct, cpu_mcck);
+static struct kmem_cache *mcesa_cache;
+static unsigned long mcesa_origin_lc;
 
-static void s390_handle_damage(void)
+static inline int nmi_needs_mcesa(void)
 {
-	smp_send_stop();
+	return MACHINE_HAS_VX || MACHINE_HAS_GS;
+}
+
+static inline unsigned long nmi_get_mcesa_size(void)
+{
+	if (MACHINE_HAS_GS)
+		return MCESA_MAX_SIZE;
+	return MCESA_MIN_SIZE;
+}
+
+/*
+ * The initial machine check extended save area for the boot CPU.
+ * It will be replaced by nmi_init() with an allocated structure.
+ * The structure is required for machine check happening early in
+ * the boot process.
+ */
+static struct mcesa boot_mcesa __initdata __aligned(MCESA_MAX_SIZE);
+
+void __init nmi_alloc_boot_cpu(struct lowcore *lc)
+{
+	if (!nmi_needs_mcesa())
+		return;
+	lc->mcesad = (unsigned long) &boot_mcesa;
+	if (MACHINE_HAS_GS)
+		lc->mcesad |= ilog2(MCESA_MAX_SIZE);
+}
+
+static int __init nmi_init(void)
+{
+	unsigned long origin, cr0, size;
+
+	if (!nmi_needs_mcesa())
+		return 0;
+	size = nmi_get_mcesa_size();
+	if (size > MCESA_MIN_SIZE)
+		mcesa_origin_lc = ilog2(size);
+	/* create slab cache for the machine-check-extended-save-areas */
+	mcesa_cache = kmem_cache_create("nmi_save_areas", size, size, 0, NULL);
+	if (!mcesa_cache)
+		panic("Couldn't create nmi save area cache");
+	origin = (unsigned long) kmem_cache_alloc(mcesa_cache, GFP_KERNEL);
+	if (!origin)
+		panic("Couldn't allocate nmi save area");
+	/* The pointer is stored with mcesa_bits ORed in */
+	kmemleak_not_leak((void *) origin);
+	__ctl_store(cr0, 0, 0);
+	__ctl_clear_bit(0, 28); /* disable lowcore protection */
+	/* Replace boot_mcesa on the boot CPU */
+	S390_lowcore.mcesad = origin | mcesa_origin_lc;
+	__ctl_load(cr0, 0, 0);
+	return 0;
+}
+early_initcall(nmi_init);
+
+int nmi_alloc_per_cpu(struct lowcore *lc)
+{
+	unsigned long origin;
+
+	if (!nmi_needs_mcesa())
+		return 0;
+	origin = (unsigned long) kmem_cache_alloc(mcesa_cache, GFP_KERNEL);
+	if (!origin)
+		return -ENOMEM;
+	/* The pointer is stored with mcesa_bits ORed in */
+	kmemleak_not_leak((void *) origin);
+	lc->mcesad = origin | mcesa_origin_lc;
+	return 0;
+}
+
+void nmi_free_per_cpu(struct lowcore *lc)
+{
+	if (!nmi_needs_mcesa())
+		return;
+	kmem_cache_free(mcesa_cache, (void *)(lc->mcesad & MCESA_ORIGIN_MASK));
+}
+
+static notrace void s390_handle_damage(void)
+{
+	smp_emergency_stop();
 	disabled_wait((unsigned long) __builtin_return_address(0));
 	while (1);
 }
+NOKPROBE_SYMBOL(s390_handle_damage);
 
 /*
  * Main machine check handler function. Will be called with interrupts enabled
@@ -100,18 +184,16 @@ void s390_handle_mcck(void)
 EXPORT_SYMBOL_GPL(s390_handle_mcck);
 
 /*
- * returns 0 if all registers could be validated
+ * returns 0 if all required registers are available
  * returns 1 otherwise
  */
-static int notrace s390_validate_registers(union mci mci, int umode)
+static int notrace s390_check_registers(union mci mci, int umode)
 {
+	union ctlreg2 cr2;
 	int kill_task;
-	u64 zero;
 	void *fpt_save_area;
-	struct mcesa *mcesa;
 
 	kill_task = 0;
-	zero = 0;
 
 	if (!mci.gr) {
 		/*
@@ -122,18 +204,13 @@ static int notrace s390_validate_registers(union mci mci, int umode)
 			s390_handle_damage();
 		kill_task = 1;
 	}
-	/* Validate control registers */
+	/* Check control registers */
 	if (!mci.cr) {
 		/*
 		 * Control registers have unknown contents.
 		 * Can't recover and therefore stopping machine.
 		 */
 		s390_handle_damage();
-	} else {
-		asm volatile(
-			"	lctlg	0,15,0(%0)\n"
-			"	ptlb\n"
-			: : "a" (&S390_lowcore.cregs_save_area) : "memory");
 	}
 	if (!mci.fp) {
 		/*
@@ -141,7 +218,6 @@ static int notrace s390_validate_registers(union mci mci, int umode)
 		 * kernel currently uses floating point registers the
 		 * system is stopped. If the process has its floating
 		 * pointer registers loaded it is terminated.
-		 * Otherwise just revalidate the registers.
 		 */
 		if (S390_lowcore.fpu_flags & KERNEL_VXR_V0V7)
 			s390_handle_damage();
@@ -155,72 +231,29 @@ static int notrace s390_validate_registers(union mci mci, int umode)
 		 * If the kernel currently uses the floating pointer
 		 * registers and needs the FPC register the system is
 		 * stopped. If the process has its floating pointer
-		 * registers loaded it is terminated. Otherwiese the
-		 * FPC is just revalidated.
+		 * registers loaded it is terminated.
 		 */
 		if (S390_lowcore.fpu_flags & KERNEL_FPC)
 			s390_handle_damage();
-		asm volatile("lfpc %0" : : "Q" (zero));
 		if (!test_cpu_flag(CIF_FPU))
 			kill_task = 1;
-	} else {
-		asm volatile("lfpc %0"
-			     : : "Q" (S390_lowcore.fpt_creg_save_area));
 	}
 
-	mcesa = (struct mcesa *)(S390_lowcore.mcesad & MCESA_ORIGIN_MASK);
-	if (!MACHINE_HAS_VX) {
-		/* Validate floating point registers */
-		asm volatile(
-			"	ld	0,0(%0)\n"
-			"	ld	1,8(%0)\n"
-			"	ld	2,16(%0)\n"
-			"	ld	3,24(%0)\n"
-			"	ld	4,32(%0)\n"
-			"	ld	5,40(%0)\n"
-			"	ld	6,48(%0)\n"
-			"	ld	7,56(%0)\n"
-			"	ld	8,64(%0)\n"
-			"	ld	9,72(%0)\n"
-			"	ld	10,80(%0)\n"
-			"	ld	11,88(%0)\n"
-			"	ld	12,96(%0)\n"
-			"	ld	13,104(%0)\n"
-			"	ld	14,112(%0)\n"
-			"	ld	15,120(%0)\n"
-			: : "a" (fpt_save_area) : "memory");
-	} else {
-		/* Validate vector registers */
-		union ctlreg0 cr0;
-
+	if (MACHINE_HAS_VX) {
 		if (!mci.vr) {
 			/*
 			 * Vector registers can't be restored. If the kernel
 			 * currently uses vector registers the system is
 			 * stopped. If the process has its vector registers
-			 * loaded it is terminated. Otherwise just revalidate
-			 * the registers.
+			 * loaded it is terminated.
 			 */
 			if (S390_lowcore.fpu_flags & KERNEL_VXR)
 				s390_handle_damage();
 			if (!test_cpu_flag(CIF_FPU))
 				kill_task = 1;
 		}
-		cr0.val = S390_lowcore.cregs_save_area[0];
-		cr0.afp = cr0.vx = 1;
-		__ctl_load(cr0.val, 0, 0);
-		asm volatile(
-			"	la	1,%0\n"
-			"	.word	0xe70f,0x1000,0x0036\n"	/* vlm 0,15,0(1) */
-			"	.word	0xe70f,0x1100,0x0c36\n"	/* vlm 16,31,256(1) */
-			: : "Q" (*(struct vx_array *) mcesa->vector_save_area)
-			: "1");
-		__ctl_load(S390_lowcore.cregs_save_area[0], 0, 0);
 	}
-	/* Validate access registers */
-	asm volatile(
-		"	lam	0,15,0(%0)"
-		: : "a" (&S390_lowcore.access_regs_save_area));
+	/* Check if access registers are valid */
 	if (!mci.ar) {
 		/*
 		 * Access registers have unknown contents.
@@ -228,53 +261,41 @@ static int notrace s390_validate_registers(union mci mci, int umode)
 		 */
 		kill_task = 1;
 	}
-	/* Validate guarded storage registers */
-	if (MACHINE_HAS_GS && (S390_lowcore.cregs_save_area[2] & (1UL << 4))) {
-		if (!mci.gs)
+	/* Check guarded storage registers */
+	cr2.val = S390_lowcore.cregs_save_area[2];
+	if (cr2.gse) {
+		if (!mci.gs) {
 			/*
 			 * Guarded storage register can't be restored and
 			 * the current processes uses guarded storage.
 			 * It has to be terminated.
 			 */
 			kill_task = 1;
-		else
-			load_gs_cb((struct gs_cb *)
-				   mcesa->guarded_storage_save_area);
+		}
 	}
-	/*
-	 * We don't even try to validate the TOD register, since we simply
-	 * can't write something sensible into that register.
-	 */
-	/*
-	 * See if we can validate the TOD programmable register with its
-	 * old contents (should be zero) otherwise set it to zero.
-	 */
-	if (!mci.pr)
-		asm volatile(
-			"	sr	0,0\n"
-			"	sckpf"
-			: : : "0", "cc");
-	else
-		asm volatile(
-			"	l	0,%0\n"
-			"	sckpf"
-			: : "Q" (S390_lowcore.tod_progreg_save_area)
-			: "0", "cc");
-	/* Validate clock comparator register */
-	set_clock_comparator(S390_lowcore.clock_comparator);
 	/* Check if old PSW is valid */
-	if (!mci.wp)
+	if (!mci.wp) {
 		/*
 		 * Can't tell if we come from user or kernel mode
 		 * -> stopping machine.
 		 */
 		s390_handle_damage();
+	}
+	/* Check for invalid kernel instruction address */
+	if (!mci.ia && !umode) {
+		/*
+		 * The instruction address got lost while running
+		 * in the kernel -> stopping machine.
+		 */
+		s390_handle_damage();
+	}
 
 	if (!mci.ms || !mci.pm || !mci.ia)
 		kill_task = 1;
 
 	return kill_task;
 }
+NOKPROBE_SYMBOL(s390_check_registers);
 
 /*
  * Backup the guest's machine check info to its description block
@@ -300,6 +321,7 @@ static void notrace s390_backup_mcck_info(struct pt_regs *regs)
 	mcck_backup->failing_storage_address
 			= S390_lowcore.failing_storage_address;
 }
+NOKPROBE_SYMBOL(s390_backup_mcck_info);
 
 #define MAX_IPD_COUNT	29
 #define MAX_IPD_TIME	(5 * 60 * USEC_PER_SEC) /* 5 minutes */
@@ -372,7 +394,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
 			s390_handle_damage();
 		}
 	}
-	if (s390_validate_registers(mci, user_mode(regs))) {
+	if (s390_check_registers(mci, user_mode(regs))) {
 		/*
 		 * Couldn't restore all register contents for the
 		 * user space process -> mark task for termination.
@@ -443,6 +465,7 @@ void notrace s390_do_machine_check(struct pt_regs *regs)
 	clear_cpu_flag(CIF_MCCK_GUEST);
 	nmi_exit();
 }
+NOKPROBE_SYMBOL(s390_do_machine_check);
 
 static int __init machine_check_init(void)
 {
diff --git a/arch/s390/kernel/os_info.c b/arch/s390/kernel/os_info.c
index 753ba63182b9..0a5e4bafb6ad 100644
--- a/arch/s390/kernel/os_info.c
+++ b/arch/s390/kernel/os_info.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OS info memory interface
  *
diff --git a/arch/s390/kernel/perf_cpum_cf_events.c b/arch/s390/kernel/perf_cpum_cf_events.c
index d3133285b7d1..94f90cefbffc 100644
--- a/arch/s390/kernel/perf_cpum_cf_events.c
+++ b/arch/s390/kernel/perf_cpum_cf_events.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Perf PMU sysfs events attributes for available CPU-measurement counters
  *
@@ -9,34 +10,42 @@
 
 /* BEGIN: CPUM_CF COUNTER DEFINITIONS =================================== */
 
-CPUMF_EVENT_ATTR(cf, CPU_CYCLES, 0x0000);
-CPUMF_EVENT_ATTR(cf, INSTRUCTIONS, 0x0001);
-CPUMF_EVENT_ATTR(cf, L1I_DIR_WRITES, 0x0002);
-CPUMF_EVENT_ATTR(cf, L1I_PENALTY_CYCLES, 0x0003);
-CPUMF_EVENT_ATTR(cf, PROBLEM_STATE_CPU_CYCLES, 0x0020);
-CPUMF_EVENT_ATTR(cf, PROBLEM_STATE_INSTRUCTIONS, 0x0021);
-CPUMF_EVENT_ATTR(cf, PROBLEM_STATE_L1I_DIR_WRITES, 0x0022);
-CPUMF_EVENT_ATTR(cf, PROBLEM_STATE_L1I_PENALTY_CYCLES, 0x0023);
-CPUMF_EVENT_ATTR(cf, PROBLEM_STATE_L1D_DIR_WRITES, 0x0024);
-CPUMF_EVENT_ATTR(cf, PROBLEM_STATE_L1D_PENALTY_CYCLES, 0x0025);
-CPUMF_EVENT_ATTR(cf, L1D_DIR_WRITES, 0x0004);
-CPUMF_EVENT_ATTR(cf, L1D_PENALTY_CYCLES, 0x0005);
-CPUMF_EVENT_ATTR(cf, PRNG_FUNCTIONS, 0x0040);
-CPUMF_EVENT_ATTR(cf, PRNG_CYCLES, 0x0041);
-CPUMF_EVENT_ATTR(cf, PRNG_BLOCKED_FUNCTIONS, 0x0042);
-CPUMF_EVENT_ATTR(cf, PRNG_BLOCKED_CYCLES, 0x0043);
-CPUMF_EVENT_ATTR(cf, SHA_FUNCTIONS, 0x0044);
-CPUMF_EVENT_ATTR(cf, SHA_CYCLES, 0x0045);
-CPUMF_EVENT_ATTR(cf, SHA_BLOCKED_FUNCTIONS, 0x0046);
-CPUMF_EVENT_ATTR(cf, SHA_BLOCKED_CYCLES, 0x0047);
-CPUMF_EVENT_ATTR(cf, DEA_FUNCTIONS, 0x0048);
-CPUMF_EVENT_ATTR(cf, DEA_CYCLES, 0x0049);
-CPUMF_EVENT_ATTR(cf, DEA_BLOCKED_FUNCTIONS, 0x004a);
-CPUMF_EVENT_ATTR(cf, DEA_BLOCKED_CYCLES, 0x004b);
-CPUMF_EVENT_ATTR(cf, AES_FUNCTIONS, 0x004c);
-CPUMF_EVENT_ATTR(cf, AES_CYCLES, 0x004d);
-CPUMF_EVENT_ATTR(cf, AES_BLOCKED_FUNCTIONS, 0x004e);
-CPUMF_EVENT_ATTR(cf, AES_BLOCKED_CYCLES, 0x004f);
+CPUMF_EVENT_ATTR(cf_fvn1, CPU_CYCLES, 0x0000);
+CPUMF_EVENT_ATTR(cf_fvn1, INSTRUCTIONS, 0x0001);
+CPUMF_EVENT_ATTR(cf_fvn1, L1I_DIR_WRITES, 0x0002);
+CPUMF_EVENT_ATTR(cf_fvn1, L1I_PENALTY_CYCLES, 0x0003);
+CPUMF_EVENT_ATTR(cf_fvn1, PROBLEM_STATE_CPU_CYCLES, 0x0020);
+CPUMF_EVENT_ATTR(cf_fvn1, PROBLEM_STATE_INSTRUCTIONS, 0x0021);
+CPUMF_EVENT_ATTR(cf_fvn1, PROBLEM_STATE_L1I_DIR_WRITES, 0x0022);
+CPUMF_EVENT_ATTR(cf_fvn1, PROBLEM_STATE_L1I_PENALTY_CYCLES, 0x0023);
+CPUMF_EVENT_ATTR(cf_fvn1, PROBLEM_STATE_L1D_DIR_WRITES, 0x0024);
+CPUMF_EVENT_ATTR(cf_fvn1, PROBLEM_STATE_L1D_PENALTY_CYCLES, 0x0025);
+CPUMF_EVENT_ATTR(cf_fvn1, L1D_DIR_WRITES, 0x0004);
+CPUMF_EVENT_ATTR(cf_fvn1, L1D_PENALTY_CYCLES, 0x0005);
+CPUMF_EVENT_ATTR(cf_fvn3, CPU_CYCLES, 0x0000);
+CPUMF_EVENT_ATTR(cf_fvn3, INSTRUCTIONS, 0x0001);
+CPUMF_EVENT_ATTR(cf_fvn3, L1I_DIR_WRITES, 0x0002);
+CPUMF_EVENT_ATTR(cf_fvn3, L1I_PENALTY_CYCLES, 0x0003);
+CPUMF_EVENT_ATTR(cf_fvn3, PROBLEM_STATE_CPU_CYCLES, 0x0020);
+CPUMF_EVENT_ATTR(cf_fvn3, PROBLEM_STATE_INSTRUCTIONS, 0x0021);
+CPUMF_EVENT_ATTR(cf_fvn3, L1D_DIR_WRITES, 0x0004);
+CPUMF_EVENT_ATTR(cf_fvn3, L1D_PENALTY_CYCLES, 0x0005);
+CPUMF_EVENT_ATTR(cf_svn_generic, PRNG_FUNCTIONS, 0x0040);
+CPUMF_EVENT_ATTR(cf_svn_generic, PRNG_CYCLES, 0x0041);
+CPUMF_EVENT_ATTR(cf_svn_generic, PRNG_BLOCKED_FUNCTIONS, 0x0042);
+CPUMF_EVENT_ATTR(cf_svn_generic, PRNG_BLOCKED_CYCLES, 0x0043);
+CPUMF_EVENT_ATTR(cf_svn_generic, SHA_FUNCTIONS, 0x0044);
+CPUMF_EVENT_ATTR(cf_svn_generic, SHA_CYCLES, 0x0045);
+CPUMF_EVENT_ATTR(cf_svn_generic, SHA_BLOCKED_FUNCTIONS, 0x0046);
+CPUMF_EVENT_ATTR(cf_svn_generic, SHA_BLOCKED_CYCLES, 0x0047);
+CPUMF_EVENT_ATTR(cf_svn_generic, DEA_FUNCTIONS, 0x0048);
+CPUMF_EVENT_ATTR(cf_svn_generic, DEA_CYCLES, 0x0049);
+CPUMF_EVENT_ATTR(cf_svn_generic, DEA_BLOCKED_FUNCTIONS, 0x004a);
+CPUMF_EVENT_ATTR(cf_svn_generic, DEA_BLOCKED_CYCLES, 0x004b);
+CPUMF_EVENT_ATTR(cf_svn_generic, AES_FUNCTIONS, 0x004c);
+CPUMF_EVENT_ATTR(cf_svn_generic, AES_CYCLES, 0x004d);
+CPUMF_EVENT_ATTR(cf_svn_generic, AES_BLOCKED_FUNCTIONS, 0x004e);
+CPUMF_EVENT_ATTR(cf_svn_generic, AES_BLOCKED_CYCLES, 0x004f);
 CPUMF_EVENT_ATTR(cf_z10, L1I_L2_SOURCED_WRITES, 0x0080);
 CPUMF_EVENT_ATTR(cf_z10, L1D_L2_SOURCED_WRITES, 0x0081);
 CPUMF_EVENT_ATTR(cf_z10, L1I_L3_LOCAL_WRITES, 0x0082);
@@ -170,36 +179,105 @@ CPUMF_EVENT_ATTR(cf_z13, TX_C_TABORT_NO_SPECIAL, 0x00db);
 CPUMF_EVENT_ATTR(cf_z13, TX_C_TABORT_SPECIAL, 0x00dc);
 CPUMF_EVENT_ATTR(cf_z13, MT_DIAG_CYCLES_ONE_THR_ACTIVE, 0x01c0);
 CPUMF_EVENT_ATTR(cf_z13, MT_DIAG_CYCLES_TWO_THR_ACTIVE, 0x01c1);
+CPUMF_EVENT_ATTR(cf_z14, L1D_WRITES_RO_EXCL, 0x0080);
+CPUMF_EVENT_ATTR(cf_z14, DTLB2_WRITES, 0x0081);
+CPUMF_EVENT_ATTR(cf_z14, DTLB2_MISSES, 0x0082);
+CPUMF_EVENT_ATTR(cf_z14, DTLB2_HPAGE_WRITES, 0x0083);
+CPUMF_EVENT_ATTR(cf_z14, DTLB2_GPAGE_WRITES, 0x0084);
+CPUMF_EVENT_ATTR(cf_z14, L1D_L2D_SOURCED_WRITES, 0x0085);
+CPUMF_EVENT_ATTR(cf_z14, ITLB2_WRITES, 0x0086);
+CPUMF_EVENT_ATTR(cf_z14, ITLB2_MISSES, 0x0087);
+CPUMF_EVENT_ATTR(cf_z14, L1I_L2I_SOURCED_WRITES, 0x0088);
+CPUMF_EVENT_ATTR(cf_z14, TLB2_PTE_WRITES, 0x0089);
+CPUMF_EVENT_ATTR(cf_z14, TLB2_CRSTE_WRITES, 0x008a);
+CPUMF_EVENT_ATTR(cf_z14, TLB2_ENGINES_BUSY, 0x008b);
+CPUMF_EVENT_ATTR(cf_z14, TX_C_TEND, 0x008c);
+CPUMF_EVENT_ATTR(cf_z14, TX_NC_TEND, 0x008d);
+CPUMF_EVENT_ATTR(cf_z14, L1C_TLB2_MISSES, 0x008f);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCHIP_L3_SOURCED_WRITES, 0x0090);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCHIP_MEMORY_SOURCED_WRITES, 0x0091);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCHIP_L3_SOURCED_WRITES_IV, 0x0092);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCLUSTER_L3_SOURCED_WRITES, 0x0093);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCLUSTER_MEMORY_SOURCED_WRITES, 0x0094);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCLUSTER_L3_SOURCED_WRITES_IV, 0x0095);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFCLUSTER_L3_SOURCED_WRITES, 0x0096);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFCLUSTER_MEMORY_SOURCED_WRITES, 0x0097);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFCLUSTER_L3_SOURCED_WRITES_IV, 0x0098);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFDRAWER_L3_SOURCED_WRITES, 0x0099);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFDRAWER_MEMORY_SOURCED_WRITES, 0x009a);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFDRAWER_L3_SOURCED_WRITES_IV, 0x009b);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONDRAWER_L4_SOURCED_WRITES, 0x009c);
+CPUMF_EVENT_ATTR(cf_z14, L1D_OFFDRAWER_L4_SOURCED_WRITES, 0x009d);
+CPUMF_EVENT_ATTR(cf_z14, L1D_ONCHIP_L3_SOURCED_WRITES_RO, 0x009e);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONCHIP_L3_SOURCED_WRITES, 0x00a2);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONCHIP_MEMORY_SOURCED_WRITES, 0x00a3);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONCHIP_L3_SOURCED_WRITES_IV, 0x00a4);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONCLUSTER_L3_SOURCED_WRITES, 0x00a5);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONCLUSTER_MEMORY_SOURCED_WRITES, 0x00a6);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONCLUSTER_L3_SOURCED_WRITES_IV, 0x00a7);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFCLUSTER_L3_SOURCED_WRITES, 0x00a8);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFCLUSTER_MEMORY_SOURCED_WRITES, 0x00a9);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFCLUSTER_L3_SOURCED_WRITES_IV, 0x00aa);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFDRAWER_L3_SOURCED_WRITES, 0x00ab);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFDRAWER_MEMORY_SOURCED_WRITES, 0x00ac);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFDRAWER_L3_SOURCED_WRITES_IV, 0x00ad);
+CPUMF_EVENT_ATTR(cf_z14, L1I_ONDRAWER_L4_SOURCED_WRITES, 0x00ae);
+CPUMF_EVENT_ATTR(cf_z14, L1I_OFFDRAWER_L4_SOURCED_WRITES, 0x00af);
+CPUMF_EVENT_ATTR(cf_z14, BCD_DFP_EXECUTION_SLOTS, 0x00e0);
+CPUMF_EVENT_ATTR(cf_z14, VX_BCD_EXECUTION_SLOTS, 0x00e1);
+CPUMF_EVENT_ATTR(cf_z14, DECIMAL_INSTRUCTIONS, 0x00e2);
+CPUMF_EVENT_ATTR(cf_z14, LAST_HOST_TRANSLATIONS, 0x00e9);
+CPUMF_EVENT_ATTR(cf_z14, TX_NC_TABORT, 0x00f3);
+CPUMF_EVENT_ATTR(cf_z14, TX_C_TABORT_NO_SPECIAL, 0x00f4);
+CPUMF_EVENT_ATTR(cf_z14, TX_C_TABORT_SPECIAL, 0x00f5);
+CPUMF_EVENT_ATTR(cf_z14, MT_DIAG_CYCLES_ONE_THR_ACTIVE, 0x01c0);
+CPUMF_EVENT_ATTR(cf_z14, MT_DIAG_CYCLES_TWO_THR_ACTIVE, 0x01c1);
 
-static struct attribute *cpumcf_pmu_event_attr[] __initdata = {
-	CPUMF_EVENT_PTR(cf, CPU_CYCLES),
-	CPUMF_EVENT_PTR(cf, INSTRUCTIONS),
-	CPUMF_EVENT_PTR(cf, L1I_DIR_WRITES),
-	CPUMF_EVENT_PTR(cf, L1I_PENALTY_CYCLES),
-	CPUMF_EVENT_PTR(cf, PROBLEM_STATE_CPU_CYCLES),
-	CPUMF_EVENT_PTR(cf, PROBLEM_STATE_INSTRUCTIONS),
-	CPUMF_EVENT_PTR(cf, PROBLEM_STATE_L1I_DIR_WRITES),
-	CPUMF_EVENT_PTR(cf, PROBLEM_STATE_L1I_PENALTY_CYCLES),
-	CPUMF_EVENT_PTR(cf, PROBLEM_STATE_L1D_DIR_WRITES),
-	CPUMF_EVENT_PTR(cf, PROBLEM_STATE_L1D_PENALTY_CYCLES),
-	CPUMF_EVENT_PTR(cf, L1D_DIR_WRITES),
-	CPUMF_EVENT_PTR(cf, L1D_PENALTY_CYCLES),
-	CPUMF_EVENT_PTR(cf, PRNG_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, PRNG_CYCLES),
-	CPUMF_EVENT_PTR(cf, PRNG_BLOCKED_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, PRNG_BLOCKED_CYCLES),
-	CPUMF_EVENT_PTR(cf, SHA_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, SHA_CYCLES),
-	CPUMF_EVENT_PTR(cf, SHA_BLOCKED_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, SHA_BLOCKED_CYCLES),
-	CPUMF_EVENT_PTR(cf, DEA_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, DEA_CYCLES),
-	CPUMF_EVENT_PTR(cf, DEA_BLOCKED_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, DEA_BLOCKED_CYCLES),
-	CPUMF_EVENT_PTR(cf, AES_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, AES_CYCLES),
-	CPUMF_EVENT_PTR(cf, AES_BLOCKED_FUNCTIONS),
-	CPUMF_EVENT_PTR(cf, AES_BLOCKED_CYCLES),
+static struct attribute *cpumcf_fvn1_pmu_event_attr[] __initdata = {
+	CPUMF_EVENT_PTR(cf_fvn1, CPU_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn1, INSTRUCTIONS),
+	CPUMF_EVENT_PTR(cf_fvn1, L1I_DIR_WRITES),
+	CPUMF_EVENT_PTR(cf_fvn1, L1I_PENALTY_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn1, PROBLEM_STATE_CPU_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn1, PROBLEM_STATE_INSTRUCTIONS),
+	CPUMF_EVENT_PTR(cf_fvn1, PROBLEM_STATE_L1I_DIR_WRITES),
+	CPUMF_EVENT_PTR(cf_fvn1, PROBLEM_STATE_L1I_PENALTY_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn1, PROBLEM_STATE_L1D_DIR_WRITES),
+	CPUMF_EVENT_PTR(cf_fvn1, PROBLEM_STATE_L1D_PENALTY_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn1, L1D_DIR_WRITES),
+	CPUMF_EVENT_PTR(cf_fvn1, L1D_PENALTY_CYCLES),
+	NULL,
+};
+
+static struct attribute *cpumcf_fvn3_pmu_event_attr[] __initdata = {
+	CPUMF_EVENT_PTR(cf_fvn3, CPU_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn3, INSTRUCTIONS),
+	CPUMF_EVENT_PTR(cf_fvn3, L1I_DIR_WRITES),
+	CPUMF_EVENT_PTR(cf_fvn3, L1I_PENALTY_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn3, PROBLEM_STATE_CPU_CYCLES),
+	CPUMF_EVENT_PTR(cf_fvn3, PROBLEM_STATE_INSTRUCTIONS),
+	CPUMF_EVENT_PTR(cf_fvn3, L1D_DIR_WRITES),
+	CPUMF_EVENT_PTR(cf_fvn3, L1D_PENALTY_CYCLES),
+	NULL,
+};
+
+static struct attribute *cpumcf_svn_generic_pmu_event_attr[] __initdata = {
+	CPUMF_EVENT_PTR(cf_svn_generic, PRNG_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, PRNG_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, PRNG_BLOCKED_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, PRNG_BLOCKED_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, SHA_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, SHA_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, SHA_BLOCKED_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, SHA_BLOCKED_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, DEA_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, DEA_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, DEA_BLOCKED_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, DEA_BLOCKED_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, AES_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, AES_CYCLES),
+	CPUMF_EVENT_PTR(cf_svn_generic, AES_BLOCKED_FUNCTIONS),
+	CPUMF_EVENT_PTR(cf_svn_generic, AES_BLOCKED_CYCLES),
 	NULL,
 };
 
@@ -352,6 +430,63 @@ static struct attribute *cpumcf_z13_pmu_event_attr[] __initdata = {
 	NULL,
 };
 
+static struct attribute *cpumcf_z14_pmu_event_attr[] __initdata = {
+	CPUMF_EVENT_PTR(cf_z14, L1D_WRITES_RO_EXCL),
+	CPUMF_EVENT_PTR(cf_z14, DTLB2_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, DTLB2_MISSES),
+	CPUMF_EVENT_PTR(cf_z14, DTLB2_HPAGE_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, DTLB2_GPAGE_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_L2D_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, ITLB2_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, ITLB2_MISSES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_L2I_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, TLB2_PTE_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, TLB2_CRSTE_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, TLB2_ENGINES_BUSY),
+	CPUMF_EVENT_PTR(cf_z14, TX_C_TEND),
+	CPUMF_EVENT_PTR(cf_z14, TX_NC_TEND),
+	CPUMF_EVENT_PTR(cf_z14, L1C_TLB2_MISSES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCHIP_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCHIP_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCHIP_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCLUSTER_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCLUSTER_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCLUSTER_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFCLUSTER_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFCLUSTER_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFCLUSTER_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFDRAWER_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFDRAWER_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFDRAWER_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONDRAWER_L4_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_OFFDRAWER_L4_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1D_ONCHIP_L3_SOURCED_WRITES_RO),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONCHIP_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONCHIP_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONCHIP_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONCLUSTER_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONCLUSTER_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONCLUSTER_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFCLUSTER_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFCLUSTER_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFCLUSTER_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFDRAWER_L3_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFDRAWER_MEMORY_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFDRAWER_L3_SOURCED_WRITES_IV),
+	CPUMF_EVENT_PTR(cf_z14, L1I_ONDRAWER_L4_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, L1I_OFFDRAWER_L4_SOURCED_WRITES),
+	CPUMF_EVENT_PTR(cf_z14, BCD_DFP_EXECUTION_SLOTS),
+	CPUMF_EVENT_PTR(cf_z14, VX_BCD_EXECUTION_SLOTS),
+	CPUMF_EVENT_PTR(cf_z14, DECIMAL_INSTRUCTIONS),
+	CPUMF_EVENT_PTR(cf_z14, LAST_HOST_TRANSLATIONS),
+	CPUMF_EVENT_PTR(cf_z14, TX_NC_TABORT),
+	CPUMF_EVENT_PTR(cf_z14, TX_C_TABORT_NO_SPECIAL),
+	CPUMF_EVENT_PTR(cf_z14, TX_C_TABORT_SPECIAL),
+	CPUMF_EVENT_PTR(cf_z14, MT_DIAG_CYCLES_ONE_THR_ACTIVE),
+	CPUMF_EVENT_PTR(cf_z14, MT_DIAG_CYCLES_TWO_THR_ACTIVE),
+	NULL,
+};
+
 /* END: CPUM_CF COUNTER DEFINITIONS ===================================== */
 
 static struct attribute_group cpumcf_pmu_events_group = {
@@ -378,7 +513,8 @@ static const struct attribute_group *cpumcf_pmu_attr_groups[] = {
 
 
 static __init struct attribute **merge_attr(struct attribute **a,
-					    struct attribute **b)
+					    struct attribute **b,
+					    struct attribute **c)
 {
 	struct attribute **new;
 	int j, i;
@@ -387,6 +523,8 @@ static __init struct attribute **merge_attr(struct attribute **a,
 		;
 	for (i = 0; b[i]; i++)
 		j++;
+	for (i = 0; c[i]; i++)
+		j++;
 	j++;
 
 	new = kmalloc(sizeof(struct attribute *) * j, GFP_KERNEL);
@@ -397,6 +535,8 @@ static __init struct attribute **merge_attr(struct attribute **a,
 		new[j++] = a[i];
 	for (i = 0; b[i]; i++)
 		new[j++] = b[i];
+	for (i = 0; c[i]; i++)
+		new[j++] = c[i];
 	new[j] = NULL;
 
 	return new;
@@ -404,10 +544,26 @@ static __init struct attribute **merge_attr(struct attribute **a,
 
 __init const struct attribute_group **cpumf_cf_event_group(void)
 {
-	struct attribute **combined, **model;
+	struct attribute **combined, **model, **cfvn, **csvn;
 	struct attribute *none[] = { NULL };
+	struct cpumf_ctr_info ci;
 	struct cpuid cpu_id;
 
+	/* Determine generic counters set(s) */
+	qctri(&ci);
+	switch (ci.cfvn) {
+	case 1:
+		cfvn = cpumcf_fvn1_pmu_event_attr;
+		break;
+	case 3:
+		cfvn = cpumcf_fvn3_pmu_event_attr;
+		break;
+	default:
+		cfvn = none;
+	}
+	csvn = cpumcf_svn_generic_pmu_event_attr;
+
+	/* Determine model-specific counter set(s) */
 	get_cpu_id(&cpu_id);
 	switch (cpu_id.machine) {
 	case 0x2097:
@@ -426,12 +582,15 @@ __init const struct attribute_group **cpumf_cf_event_group(void)
 	case 0x2965:
 		model = cpumcf_z13_pmu_event_attr;
 		break;
+	case 0x3906:
+		model = cpumcf_z14_pmu_event_attr;
+		break;
 	default:
 		model = none;
 		break;
 	}
 
-	combined = merge_attr(cpumcf_pmu_event_attr, model);
+	combined = merge_attr(cfvn, csvn, model);
 	if (combined)
 		cpumcf_pmu_events_group.attrs = combined;
 	return cpumcf_pmu_attr_groups;
diff --git a/arch/s390/kernel/perf_cpum_sf.c b/arch/s390/kernel/perf_cpum_sf.c
index c1bf75ffb875..bd4bbf61aaf3 100644
--- a/arch/s390/kernel/perf_cpum_sf.c
+++ b/arch/s390/kernel/perf_cpum_sf.c
@@ -823,9 +823,8 @@ static int cpumsf_pmu_event_init(struct perf_event *event)
 	}
 
 	/* Check online status of the CPU to which the event is pinned */
-	if ((unsigned int)event->cpu >= nr_cpumask_bits ||
-	    (event->cpu >= 0 && !cpu_online(event->cpu)))
-		return -ENODEV;
+	if (event->cpu >= 0 && !cpu_online(event->cpu))
+			return -ENODEV;
 
 	/* Force reset of idle/hv excludes regardless of what the
 	 * user requested.
diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S
index 036aa01d06a9..3e62aae34ea3 100644
--- a/arch/s390/kernel/pgm_check.S
+++ b/arch/s390/kernel/pgm_check.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Program check table.
  *
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index bb32b8618bf6..70576a2f69cf 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file handles the architecture dependent parts of process handling.
  *
@@ -43,27 +44,14 @@ asmlinkage void ret_from_fork(void) asm ("ret_from_fork");
 
 extern void kernel_thread_starter(void);
 
-/*
- * Free current thread data structures etc..
- */
-void exit_thread(struct task_struct *tsk)
-{
-	if (tsk == current) {
-		exit_thread_runtime_instr();
-		exit_thread_gs();
-	}
-}
-
 void flush_thread(void)
 {
 }
 
-void release_thread(struct task_struct *dead_task)
-{
-}
-
 void arch_release_task_struct(struct task_struct *tsk)
 {
+	runtime_instr_release(tsk);
+	guarded_storage_release(tsk);
 }
 
 int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src)
@@ -99,6 +87,7 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long new_stackp,
 	memset(&p->thread.per_user, 0, sizeof(p->thread.per_user));
 	memset(&p->thread.per_event, 0, sizeof(p->thread.per_event));
 	clear_tsk_thread_flag(p, TIF_SINGLE_STEP);
+	p->thread.per_flags = 0;
 	/* Initialize per thread user and system timer values */
 	p->thread.user_timer = 0;
 	p->thread.guest_timer = 0;
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c
index 778cd6536175..5362fd868d0d 100644
--- a/arch/s390/kernel/processor.c
+++ b/arch/s390/kernel/processor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright IBM Corp. 2008
  *  Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 252ed61a128b..26c0523c1488 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Ptrace user space interface.
  *
@@ -30,6 +31,9 @@
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
 #include <asm/switch_to.h>
+#include <asm/runtime_instr.h>
+#include <asm/facility.h>
+
 #include "entry.h"
 
 #ifdef CONFIG_COMPAT
@@ -44,42 +48,42 @@ void update_cr_regs(struct task_struct *task)
 	struct pt_regs *regs = task_pt_regs(task);
 	struct thread_struct *thread = &task->thread;
 	struct per_regs old, new;
-	unsigned long cr0_old, cr0_new;
-	unsigned long cr2_old, cr2_new;
+	union ctlreg0 cr0_old, cr0_new;
+	union ctlreg2 cr2_old, cr2_new;
 	int cr0_changed, cr2_changed;
 
-	__ctl_store(cr0_old, 0, 0);
-	__ctl_store(cr2_old, 2, 2);
+	__ctl_store(cr0_old.val, 0, 0);
+	__ctl_store(cr2_old.val, 2, 2);
 	cr0_new = cr0_old;
 	cr2_new = cr2_old;
 	/* Take care of the enable/disable of transactional execution. */
 	if (MACHINE_HAS_TE) {
 		/* Set or clear transaction execution TXC bit 8. */
-		cr0_new |= (1UL << 55);
+		cr0_new.tcx = 1;
 		if (task->thread.per_flags & PER_FLAG_NO_TE)
-			cr0_new &= ~(1UL << 55);
+			cr0_new.tcx = 0;
 		/* Set or clear transaction execution TDC bits 62 and 63. */
-		cr2_new &= ~3UL;
+		cr2_new.tdc = 0;
 		if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND) {
 			if (task->thread.per_flags & PER_FLAG_TE_ABORT_RAND_TEND)
-				cr2_new |= 1UL;
+				cr2_new.tdc = 1;
 			else
-				cr2_new |= 2UL;
+				cr2_new.tdc = 2;
 		}
 	}
 	/* Take care of enable/disable of guarded storage. */
 	if (MACHINE_HAS_GS) {
-		cr2_new &= ~(1UL << 4);
+		cr2_new.gse = 0;
 		if (task->thread.gs_cb)
-			cr2_new |= (1UL << 4);
+			cr2_new.gse = 1;
 	}
 	/* Load control register 0/2 iff changed */
-	cr0_changed = cr0_new != cr0_old;
-	cr2_changed = cr2_new != cr2_old;
+	cr0_changed = cr0_new.val != cr0_old.val;
+	cr2_changed = cr2_new.val != cr2_old.val;
 	if (cr0_changed)
-		__ctl_load(cr0_new, 0, 0);
+		__ctl_load(cr0_new.val, 0, 0);
 	if (cr2_changed)
-		__ctl_load(cr2_new, 2, 2);
+		__ctl_load(cr2_new.val, 2, 2);
 	/* Copy user specified PER registers */
 	new.control = thread->per_user.control;
 	new.start = thread->per_user.start;
@@ -1171,26 +1175,37 @@ static int s390_gs_cb_set(struct task_struct *target,
 			  unsigned int pos, unsigned int count,
 			  const void *kbuf, const void __user *ubuf)
 {
-	struct gs_cb *data = target->thread.gs_cb;
+	struct gs_cb gs_cb = { }, *data = NULL;
 	int rc;
 
 	if (!MACHINE_HAS_GS)
 		return -ENODEV;
-	if (!data) {
+	if (!target->thread.gs_cb) {
 		data = kzalloc(sizeof(*data), GFP_KERNEL);
 		if (!data)
 			return -ENOMEM;
-		data->gsd = 25;
-		target->thread.gs_cb = data;
-		if (target == current)
-			__ctl_set_bit(2, 4);
-	} else if (target == current) {
-		save_gs_cb(data);
 	}
+	if (!target->thread.gs_cb)
+		gs_cb.gsd = 25;
+	else if (target == current)
+		save_gs_cb(&gs_cb);
+	else
+		gs_cb = *target->thread.gs_cb;
 	rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				data, 0, sizeof(struct gs_cb));
-	if (target == current)
-		restore_gs_cb(data);
+				&gs_cb, 0, sizeof(gs_cb));
+	if (rc) {
+		kfree(data);
+		return -EFAULT;
+	}
+	preempt_disable();
+	if (!target->thread.gs_cb)
+		target->thread.gs_cb = data;
+	*target->thread.gs_cb = gs_cb;
+	if (target == current) {
+		__ctl_set_bit(2, 4);
+		restore_gs_cb(target->thread.gs_cb);
+	}
+	preempt_enable();
 	return rc;
 }
 
@@ -1228,6 +1243,96 @@ static int s390_gs_bc_set(struct task_struct *target,
 				  data, 0, sizeof(struct gs_cb));
 }
 
+static bool is_ri_cb_valid(struct runtime_instr_cb *cb)
+{
+	return (cb->rca & 0x1f) == 0 &&
+		(cb->roa & 0xfff) == 0 &&
+		(cb->rla & 0xfff) == 0xfff &&
+		cb->s == 1 &&
+		cb->k == 1 &&
+		cb->h == 0 &&
+		cb->reserved1 == 0 &&
+		cb->ps == 1 &&
+		cb->qs == 0 &&
+		cb->pc == 1 &&
+		cb->qc == 0 &&
+		cb->reserved2 == 0 &&
+		cb->key == PAGE_DEFAULT_KEY &&
+		cb->reserved3 == 0 &&
+		cb->reserved4 == 0 &&
+		cb->reserved5 == 0 &&
+		cb->reserved6 == 0 &&
+		cb->reserved7 == 0 &&
+		cb->reserved8 == 0 &&
+		cb->rla >= cb->roa &&
+		cb->rca >= cb->roa &&
+		cb->rca <= cb->rla+1 &&
+		cb->m < 3;
+}
+
+static int s390_runtime_instr_get(struct task_struct *target,
+				const struct user_regset *regset,
+				unsigned int pos, unsigned int count,
+				void *kbuf, void __user *ubuf)
+{
+	struct runtime_instr_cb *data = target->thread.ri_cb;
+
+	if (!test_facility(64))
+		return -ENODEV;
+	if (!data)
+		return -ENODATA;
+
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   data, 0, sizeof(struct runtime_instr_cb));
+}
+
+static int s390_runtime_instr_set(struct task_struct *target,
+				  const struct user_regset *regset,
+				  unsigned int pos, unsigned int count,
+				  const void *kbuf, const void __user *ubuf)
+{
+	struct runtime_instr_cb ri_cb = { }, *data = NULL;
+	int rc;
+
+	if (!test_facility(64))
+		return -ENODEV;
+
+	if (!target->thread.ri_cb) {
+		data = kzalloc(sizeof(*data), GFP_KERNEL);
+		if (!data)
+			return -ENOMEM;
+	}
+
+	if (target->thread.ri_cb) {
+		if (target == current)
+			store_runtime_instr_cb(&ri_cb);
+		else
+			ri_cb = *target->thread.ri_cb;
+	}
+
+	rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				&ri_cb, 0, sizeof(struct runtime_instr_cb));
+	if (rc) {
+		kfree(data);
+		return -EFAULT;
+	}
+
+	if (!is_ri_cb_valid(&ri_cb)) {
+		kfree(data);
+		return -EINVAL;
+	}
+
+	preempt_disable();
+	if (!target->thread.ri_cb)
+		target->thread.ri_cb = data;
+	*target->thread.ri_cb = ri_cb;
+	if (target == current)
+		load_runtime_instr_cb(target->thread.ri_cb);
+	preempt_enable();
+
+	return 0;
+}
+
 static const struct user_regset s390_regsets[] = {
 	{
 		.core_note_type = NT_PRSTATUS,
@@ -1301,6 +1406,14 @@ static const struct user_regset s390_regsets[] = {
 		.get = s390_gs_bc_get,
 		.set = s390_gs_bc_set,
 	},
+	{
+		.core_note_type = NT_S390_RI_CB,
+		.n = sizeof(struct runtime_instr_cb) / sizeof(__u64),
+		.size = sizeof(__u64),
+		.align = sizeof(__u64),
+		.get = s390_runtime_instr_get,
+		.set = s390_runtime_instr_set,
+	},
 };
 
 static const struct user_regset_view user_s390_view = {
@@ -1537,6 +1650,14 @@ static const struct user_regset s390_compat_regsets[] = {
 		.get = s390_gs_cb_get,
 		.set = s390_gs_cb_set,
 	},
+	{
+		.core_note_type = NT_S390_RI_CB,
+		.n = sizeof(struct runtime_instr_cb) / sizeof(__u64),
+		.size = sizeof(__u64),
+		.align = sizeof(__u64),
+		.get = s390_runtime_instr_get,
+		.set = s390_runtime_instr_set,
+	},
 };
 
 static const struct user_regset_view user_s390_compat_view = {
diff --git a/arch/s390/kernel/reipl.S b/arch/s390/kernel/reipl.S
index 89ea8c213d82..a40ebd1d29d0 100644
--- a/arch/s390/kernel/reipl.S
+++ b/arch/s390/kernel/reipl.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp 2000, 2011
  *    Author(s): Holger Smolinski <Holger.Smolinski@de.ibm.com>,
diff --git a/arch/s390/kernel/relocate_kernel.S b/arch/s390/kernel/relocate_kernel.S
index 4bdc65636603..9c2c96da23d0 100644
--- a/arch/s390/kernel/relocate_kernel.S
+++ b/arch/s390/kernel/relocate_kernel.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2005
  *
@@ -28,7 +29,6 @@
 ENTRY(relocate_kernel)
 		basr	%r13,0		# base address
 	.base:
-		stnsm	sys_msk-.base(%r13),0xfb	# disable DAT
 		stctg	%c0,%c15,ctlregs-.base(%r13)
 		stmg	%r0,%r15,gprregs-.base(%r13)
 		lghi	%r0,3
@@ -102,8 +102,6 @@ ENTRY(relocate_kernel)
 		.align	8
 	load_psw:
 		.long	0x00080000,0x80000000
-	sys_msk:
-		.quad	0
 	ctlregs:
 		.rept	16
 		.quad	0
diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c
index 429d3a782f1c..09f5bf0d5c0c 100644
--- a/arch/s390/kernel/runtime_instr.c
+++ b/arch/s390/kernel/runtime_instr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2012
  * Author(s): Jan Glauber <jang@linux.vnet.ibm.com>
@@ -20,11 +21,24 @@
 /* empty control block to disable RI by loading it */
 struct runtime_instr_cb runtime_instr_empty_cb;
 
+void runtime_instr_release(struct task_struct *tsk)
+{
+	kfree(tsk->thread.ri_cb);
+}
+
 static void disable_runtime_instr(void)
 {
-	struct pt_regs *regs = task_pt_regs(current);
+	struct task_struct *task = current;
+	struct pt_regs *regs;
 
+	if (!task->thread.ri_cb)
+		return;
+	regs = task_pt_regs(task);
+	preempt_disable();
 	load_runtime_instr_cb(&runtime_instr_empty_cb);
+	kfree(task->thread.ri_cb);
+	task->thread.ri_cb = NULL;
+	preempt_enable();
 
 	/*
 	 * Make sure the RI bit is deleted from the PSW. If the user did not
@@ -36,24 +50,13 @@ static void disable_runtime_instr(void)
 
 static void init_runtime_instr_cb(struct runtime_instr_cb *cb)
 {
-	cb->buf_limit = 0xfff;
-	cb->pstate = 1;
-	cb->pstate_set_buf = 1;
-	cb->pstate_sample = 1;
-	cb->pstate_collect = 1;
+	cb->rla = 0xfff;
+	cb->s = 1;
+	cb->k = 1;
+	cb->ps = 1;
+	cb->pc = 1;
 	cb->key = PAGE_DEFAULT_KEY;
-	cb->valid = 1;
-}
-
-void exit_thread_runtime_instr(void)
-{
-	struct task_struct *task = current;
-
-	if (!task->thread.ri_cb)
-		return;
-	disable_runtime_instr();
-	kfree(task->thread.ri_cb);
-	task->thread.ri_cb = NULL;
+	cb->v = 1;
 }
 
 SYSCALL_DEFINE1(s390_runtime_instr, int, command)
@@ -64,9 +67,7 @@ SYSCALL_DEFINE1(s390_runtime_instr, int, command)
 		return -EOPNOTSUPP;
 
 	if (command == S390_RUNTIME_INSTR_STOP) {
-		preempt_disable();
-		exit_thread_runtime_instr();
-		preempt_enable();
+		disable_runtime_instr();
 		return 0;
 	}
 
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index 164a1e16b53e..090053cf279b 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -55,17 +55,18 @@
 #include <asm/mmu_context.h>
 #include <asm/cpcmd.h>
 #include <asm/lowcore.h>
+#include <asm/nmi.h>
 #include <asm/irq.h>
 #include <asm/page.h>
 #include <asm/ptrace.h>
 #include <asm/sections.h>
 #include <asm/ebcdic.h>
-#include <asm/kvm_virtio.h>
 #include <asm/diag.h>
 #include <asm/os_info.h>
 #include <asm/sclp.h>
 #include <asm/sysinfo.h>
 #include <asm/numa.h>
+#include <asm/alternative.h>
 #include "entry.h"
 
 /*
@@ -339,16 +340,8 @@ static void __init setup_lowcore(void)
 	lc->stfl_fac_list = S390_lowcore.stfl_fac_list;
 	memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
 	       MAX_FACILITY_BIT/8);
-	if (MACHINE_HAS_VX || MACHINE_HAS_GS) {
-		unsigned long bits, size;
-
-		bits = MACHINE_HAS_GS ? 11 : 10;
-		size = 1UL << bits;
-		lc->mcesad = (__u64) memblock_virt_alloc(size, size);
-		if (MACHINE_HAS_GS)
-			lc->mcesad |= bits;
-	}
-	lc->vdso_per_cpu_data = (unsigned long) &lc->paste[0];
+	nmi_alloc_boot_cpu(lc);
+	vdso_alloc_boot_cpu(lc);
 	lc->sync_enter_timer = S390_lowcore.sync_enter_timer;
 	lc->async_enter_timer = S390_lowcore.async_enter_timer;
 	lc->exit_timer = S390_lowcore.exit_timer;
@@ -380,6 +373,8 @@ static void __init setup_lowcore(void)
 
 #ifdef CONFIG_SMP
 	lc->spinlock_lockval = arch_spin_lockval(0);
+	lc->spinlock_index = 0;
+	arch_spin_lock_setup(0);
 #endif
 
 	set_prefix((u32)(unsigned long) lc);
@@ -764,7 +759,7 @@ static int __init setup_hwcaps(void)
 	/*
 	 * Transactional execution support HWCAP_S390_TE is bit 10.
 	 */
-	if (test_facility(50) && test_facility(73))
+	if (MACHINE_HAS_TE)
 		elf_hwcap |= HWCAP_S390_TE;
 
 	/*
@@ -955,6 +950,8 @@ void __init setup_arch(char **cmdline_p)
 	conmode_default();
 	set_preferred_console();
 
+	apply_alternative_instructions();
+
 	/* Setup zfcpdump support */
 	setup_zfcpdump();
 
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 289dd50f9744..2d2960ab3e10 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 1999, 2006
  *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1cee6753d47a..cd4334e80b64 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  SMP related functions
  *
@@ -36,6 +37,7 @@
 #include <linux/sched/task_stack.h>
 #include <linux/crash_dump.h>
 #include <linux/memblock.h>
+#include <linux/kprobes.h>
 #include <asm/asm-offsets.h>
 #include <asm/diag.h>
 #include <asm/switch_to.h>
@@ -80,8 +82,6 @@ struct pcpu {
 static u8 boot_core_type;
 static struct pcpu pcpu_devices[NR_CPUS];
 
-static struct kmem_cache *pcpu_mcesa_cache;
-
 unsigned int smp_cpu_mt_shift;
 EXPORT_SYMBOL(smp_cpu_mt_shift);
 
@@ -192,10 +192,8 @@ static void pcpu_ec_call(struct pcpu *pcpu, int ec_bit)
 static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
 {
 	unsigned long async_stack, panic_stack;
-	unsigned long mcesa_origin, mcesa_bits;
 	struct lowcore *lc;
 
-	mcesa_origin = mcesa_bits = 0;
 	if (pcpu != &pcpu_devices[0]) {
 		pcpu->lowcore =	(struct lowcore *)
 			__get_free_pages(GFP_KERNEL | GFP_DMA, LC_ORDER);
@@ -203,39 +201,30 @@ static int pcpu_alloc_lowcore(struct pcpu *pcpu, int cpu)
 		panic_stack = __get_free_page(GFP_KERNEL);
 		if (!pcpu->lowcore || !panic_stack || !async_stack)
 			goto out;
-		if (MACHINE_HAS_VX || MACHINE_HAS_GS) {
-			mcesa_origin = (unsigned long)
-				kmem_cache_alloc(pcpu_mcesa_cache, GFP_KERNEL);
-			if (!mcesa_origin)
-				goto out;
-			/* The pointer is stored with mcesa_bits ORed in */
-			kmemleak_not_leak((void *) mcesa_origin);
-			mcesa_bits = MACHINE_HAS_GS ? 11 : 0;
-		}
 	} else {
 		async_stack = pcpu->lowcore->async_stack - ASYNC_FRAME_OFFSET;
 		panic_stack = pcpu->lowcore->panic_stack - PANIC_FRAME_OFFSET;
-		mcesa_origin = pcpu->lowcore->mcesad & MCESA_ORIGIN_MASK;
-		mcesa_bits = pcpu->lowcore->mcesad & MCESA_LC_MASK;
 	}
 	lc = pcpu->lowcore;
 	memcpy(lc, &S390_lowcore, 512);
 	memset((char *) lc + 512, 0, sizeof(*lc) - 512);
 	lc->async_stack = async_stack + ASYNC_FRAME_OFFSET;
 	lc->panic_stack = panic_stack + PANIC_FRAME_OFFSET;
-	lc->mcesad = mcesa_origin | mcesa_bits;
 	lc->cpu_nr = cpu;
 	lc->spinlock_lockval = arch_spin_lockval(cpu);
-	if (vdso_alloc_per_cpu(lc))
+	lc->spinlock_index = 0;
+	if (nmi_alloc_per_cpu(lc))
 		goto out;
+	if (vdso_alloc_per_cpu(lc))
+		goto out_mcesa;
 	lowcore_ptr[cpu] = lc;
 	pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, (u32)(unsigned long) lc);
 	return 0;
+
+out_mcesa:
+	nmi_free_per_cpu(lc);
 out:
 	if (pcpu != &pcpu_devices[0]) {
-		if (mcesa_origin)
-			kmem_cache_free(pcpu_mcesa_cache,
-					(void *) mcesa_origin);
 		free_page(panic_stack);
 		free_pages(async_stack, ASYNC_ORDER);
 		free_pages((unsigned long) pcpu->lowcore, LC_ORDER);
@@ -247,17 +236,12 @@ out:
 
 static void pcpu_free_lowcore(struct pcpu *pcpu)
 {
-	unsigned long mcesa_origin;
-
 	pcpu_sigp_retry(pcpu, SIGP_SET_PREFIX, 0);
 	lowcore_ptr[pcpu - pcpu_devices] = NULL;
 	vdso_free_per_cpu(pcpu->lowcore);
+	nmi_free_per_cpu(pcpu->lowcore);
 	if (pcpu == &pcpu_devices[0])
 		return;
-	if (MACHINE_HAS_VX || MACHINE_HAS_GS) {
-		mcesa_origin = pcpu->lowcore->mcesad & MCESA_ORIGIN_MASK;
-		kmem_cache_free(pcpu_mcesa_cache, (void *) mcesa_origin);
-	}
 	free_page(pcpu->lowcore->panic_stack-PANIC_FRAME_OFFSET);
 	free_pages(pcpu->lowcore->async_stack-ASYNC_FRAME_OFFSET, ASYNC_ORDER);
 	free_pages((unsigned long) pcpu->lowcore, LC_ORDER);
@@ -273,6 +257,7 @@ static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
 	cpumask_set_cpu(cpu, mm_cpumask(&init_mm));
 	lc->cpu_nr = cpu;
 	lc->spinlock_lockval = arch_spin_lockval(cpu);
+	lc->spinlock_index = 0;
 	lc->percpu_offset = __per_cpu_offset[cpu];
 	lc->kernel_asce = S390_lowcore.kernel_asce;
 	lc->machine_flags = S390_lowcore.machine_flags;
@@ -281,6 +266,7 @@ static void pcpu_prepare_secondary(struct pcpu *pcpu, int cpu)
 	save_access_regs((unsigned int *) lc->access_regs_save_area);
 	memcpy(lc->stfle_fac_list, S390_lowcore.stfle_fac_list,
 	       MAX_FACILITY_BIT/8);
+	arch_spin_lock_setup(cpu);
 }
 
 static void pcpu_attach_task(struct pcpu *pcpu, struct task_struct *tsk)
@@ -293,7 +279,10 @@ static void pcpu_attach_task(struct pcpu *pcpu, struct task_struct *tsk)
 	lc->lpp = LPP_MAGIC;
 	lc->current_pid = tsk->pid;
 	lc->user_timer = tsk->thread.user_timer;
+	lc->guest_timer = tsk->thread.guest_timer;
 	lc->system_timer = tsk->thread.system_timer;
+	lc->hardirq_timer = tsk->thread.hardirq_timer;
+	lc->softirq_timer = tsk->thread.softirq_timer;
 	lc->steal_timer = 0;
 }
 
@@ -419,13 +408,17 @@ void smp_yield_cpu(int cpu)
  * Send cpus emergency shutdown signal. This gives the cpus the
  * opportunity to complete outstanding interrupts.
  */
-static void smp_emergency_stop(cpumask_t *cpumask)
+void notrace smp_emergency_stop(void)
 {
+	cpumask_t cpumask;
 	u64 end;
 	int cpu;
 
+	cpumask_copy(&cpumask, cpu_online_mask);
+	cpumask_clear_cpu(smp_processor_id(), &cpumask);
+
 	end = get_tod_clock() + (1000000UL << 12);
-	for_each_cpu(cpu, cpumask) {
+	for_each_cpu(cpu, &cpumask) {
 		struct pcpu *pcpu = pcpu_devices + cpu;
 		set_bit(ec_stop_cpu, &pcpu->ec_mask);
 		while (__pcpu_sigp(pcpu->address, SIGP_EMERGENCY_SIGNAL,
@@ -434,21 +427,21 @@ static void smp_emergency_stop(cpumask_t *cpumask)
 			cpu_relax();
 	}
 	while (get_tod_clock() < end) {
-		for_each_cpu(cpu, cpumask)
+		for_each_cpu(cpu, &cpumask)
 			if (pcpu_stopped(pcpu_devices + cpu))
-				cpumask_clear_cpu(cpu, cpumask);
-		if (cpumask_empty(cpumask))
+				cpumask_clear_cpu(cpu, &cpumask);
+		if (cpumask_empty(&cpumask))
 			break;
 		cpu_relax();
 	}
 }
+NOKPROBE_SYMBOL(smp_emergency_stop);
 
 /*
  * Stop all cpus but the current one.
  */
 void smp_send_stop(void)
 {
-	cpumask_t cpumask;
 	int cpu;
 
 	/* Disable all interrupts/machine checks */
@@ -456,17 +449,16 @@ void smp_send_stop(void)
 	trace_hardirqs_off();
 
 	debug_set_critical();
-	cpumask_copy(&cpumask, cpu_online_mask);
-	cpumask_clear_cpu(smp_processor_id(), &cpumask);
 
 	if (oops_in_progress)
-		smp_emergency_stop(&cpumask);
+		smp_emergency_stop();
 
 	/* stop all processors */
-	for_each_cpu(cpu, &cpumask) {
-		struct pcpu *pcpu = pcpu_devices + cpu;
-		pcpu_sigp_retry(pcpu, SIGP_STOP, 0);
-		while (!pcpu_stopped(pcpu))
+	for_each_online_cpu(cpu) {
+		if (cpu == smp_processor_id())
+			continue;
+		pcpu_sigp_retry(pcpu_devices + cpu, SIGP_STOP, 0);
+		while (!pcpu_stopped(pcpu_devices + cpu))
 			cpu_relax();
 	}
 }
@@ -800,6 +792,8 @@ void __init smp_detect_cpus(void)
  */
 static void smp_start_secondary(void *cpuvoid)
 {
+	int cpu = smp_processor_id();
+
 	S390_lowcore.last_update_clock = get_tod_clock();
 	S390_lowcore.restart_stack = (unsigned long) restart_stack;
 	S390_lowcore.restart_fn = (unsigned long) do_restart;
@@ -813,8 +807,12 @@ static void smp_start_secondary(void *cpuvoid)
 	init_cpu_timer();
 	vtime_init();
 	pfault_init();
-	notify_cpu_starting(smp_processor_id());
-	set_cpu_online(smp_processor_id(), true);
+	notify_cpu_starting(cpu);
+	if (topology_cpu_dedicated(cpu))
+		set_cpu_flag(CIF_DEDICATED_CPU);
+	else
+		clear_cpu_flag(CIF_DEDICATED_CPU);
+	set_cpu_online(cpu, true);
 	inc_irq_stat(CPU_RST);
 	local_irq_enable();
 	cpu_startup_entry(CPUHP_AP_ONLINE_IDLE);
@@ -923,22 +921,12 @@ void __init smp_fill_possible_mask(void)
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	unsigned long size;
-
 	/* request the 0x1201 emergency signal external interrupt */
 	if (register_external_irq(EXT_IRQ_EMERGENCY_SIG, do_ext_call_interrupt))
 		panic("Couldn't request external interrupt 0x1201");
 	/* request the 0x1202 external call external interrupt */
 	if (register_external_irq(EXT_IRQ_EXTERNAL_CALL, do_ext_call_interrupt))
 		panic("Couldn't request external interrupt 0x1202");
-	/* create slab cache for the machine-check-extended-save-areas */
-	if (MACHINE_HAS_VX || MACHINE_HAS_GS) {
-		size = 1UL << (MACHINE_HAS_GS ? 11 : 10);
-		pcpu_mcesa_cache = kmem_cache_create("nmi_save_areas",
-						     size, size, 0, NULL);
-		if (!pcpu_mcesa_cache)
-			panic("Couldn't create nmi save area cache");
-	}
 }
 
 void __init smp_prepare_boot_cpu(void)
@@ -961,6 +949,7 @@ void __init smp_setup_processor_id(void)
 	pcpu_devices[0].address = stap();
 	S390_lowcore.cpu_nr = 0;
 	S390_lowcore.spinlock_lockval = arch_spin_lockval(0);
+	S390_lowcore.spinlock_index = 0;
 }
 
 /*
diff --git a/arch/s390/kvm/sthyi.c b/arch/s390/kernel/sthyi.c
index 395926b8c1ed..12981e197f01 100644
--- a/arch/s390/kvm/sthyi.c
+++ b/arch/s390/kernel/sthyi.c
@@ -8,22 +8,19 @@
  * Copyright IBM Corp. 2016
  * Author(s): Janosch Frank <frankja@linux.vnet.ibm.com>
  */
-#include <linux/kvm_host.h>
 #include <linux/errno.h>
 #include <linux/pagemap.h>
 #include <linux/vmalloc.h>
-#include <linux/ratelimit.h>
-
-#include <asm/kvm_host.h>
+#include <linux/syscalls.h>
+#include <linux/mutex.h>
 #include <asm/asm-offsets.h>
 #include <asm/sclp.h>
 #include <asm/diag.h>
 #include <asm/sysinfo.h>
 #include <asm/ebcdic.h>
-
-#include "kvm-s390.h"
-#include "gaccess.h"
-#include "trace.h"
+#include <asm/facility.h>
+#include <asm/sthyi.h>
+#include "entry.h"
 
 #define DED_WEIGHT 0xffff
 /*
@@ -144,6 +141,21 @@ struct lpar_cpu_inf {
 	struct cpu_inf ifl;
 };
 
+/*
+ * STHYI requires extensive locking in the higher hypervisors
+ * and is very computational/memory expensive. Therefore we
+ * cache the retrieved data whose valid period is 1s.
+ */
+#define CACHE_VALID_JIFFIES	HZ
+
+struct sthyi_info {
+	void *info;
+	unsigned long end;
+};
+
+static DEFINE_MUTEX(sthyi_mutex);
+static struct sthyi_info sthyi_cache;
+
 static inline u64 cpu_id(u8 ctidx, void *diag224_buf)
 {
 	return *((u64 *)(diag224_buf + (ctidx + 1) * DIAG204_CPU_NAME_LEN));
@@ -382,88 +394,124 @@ out:
 	vfree(diag204_buf);
 }
 
-static int sthyi(u64 vaddr)
+static int sthyi(u64 vaddr, u64 *rc)
 {
 	register u64 code asm("0") = 0;
 	register u64 addr asm("2") = vaddr;
+	register u64 rcode asm("3");
 	int cc;
 
 	asm volatile(
 		".insn   rre,0xB2560000,%[code],%[addr]\n"
 		"ipm     %[cc]\n"
 		"srl     %[cc],28\n"
-		: [cc] "=d" (cc)
+		: [cc] "=d" (cc), "=d" (rcode)
 		: [code] "d" (code), [addr] "a" (addr)
-		: "3", "memory", "cc");
+		: "memory", "cc");
+	*rc = rcode;
 	return cc;
 }
 
-int handle_sthyi(struct kvm_vcpu *vcpu)
+static int fill_dst(void *dst, u64 *rc)
 {
-	int reg1, reg2, r = 0;
-	u64 code, addr, cc = 0;
-	struct sthyi_sctns *sctns = NULL;
-
-	if (!test_kvm_facility(vcpu->kvm, 74))
-		return kvm_s390_inject_program_int(vcpu, PGM_OPERATION);
+	struct sthyi_sctns *sctns = (struct sthyi_sctns *)dst;
 
 	/*
-	 * STHYI requires extensive locking in the higher hypervisors
-	 * and is very computational/memory expensive. Therefore we
-	 * ratelimit the executions per VM.
+	 * If the facility is on, we don't want to emulate the instruction.
+	 * We ask the hypervisor to provide the data.
 	 */
-	if (!__ratelimit(&vcpu->kvm->arch.sthyi_limit)) {
-		kvm_s390_retry_instr(vcpu);
+	if (test_facility(74))
+		return sthyi((u64)dst, rc);
+
+	fill_hdr(sctns);
+	fill_stsi(sctns);
+	fill_diag(sctns);
+	*rc = 0;
+	return 0;
+}
+
+static int sthyi_init_cache(void)
+{
+	if (sthyi_cache.info)
 		return 0;
-	}
+	sthyi_cache.info = (void *)get_zeroed_page(GFP_KERNEL);
+	if (!sthyi_cache.info)
+		return -ENOMEM;
+	sthyi_cache.end = jiffies - 1; /* expired */
+	return 0;
+}
 
-	kvm_s390_get_regs_rre(vcpu, &reg1, &reg2);
-	code = vcpu->run->s.regs.gprs[reg1];
-	addr = vcpu->run->s.regs.gprs[reg2];
+static int sthyi_update_cache(u64 *rc)
+{
+	int r;
 
-	vcpu->stat.instruction_sthyi++;
-	VCPU_EVENT(vcpu, 3, "STHYI: fc: %llu addr: 0x%016llx", code, addr);
-	trace_kvm_s390_handle_sthyi(vcpu, code, addr);
+	memset(sthyi_cache.info, 0, PAGE_SIZE);
+	r = fill_dst(sthyi_cache.info, rc);
+	if (r)
+		return r;
+	sthyi_cache.end = jiffies + CACHE_VALID_JIFFIES;
+	return r;
+}
 
-	if (reg1 == reg2 || reg1 & 1 || reg2 & 1)
-		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+/*
+ * sthyi_fill - Fill page with data returned by the STHYI instruction
+ *
+ * @dst: Pointer to zeroed page
+ * @rc:  Pointer for storing the return code of the instruction
+ *
+ * Fills the destination with system information returned by the STHYI
+ * instruction. The data is generated by emulation or execution of STHYI,
+ * if available. The return value is the condition code that would be
+ * returned, the rc parameter is the return code which is passed in
+ * register R2 + 1.
+ */
+int sthyi_fill(void *dst, u64 *rc)
+{
+	int r;
 
-	if (code & 0xffff) {
-		cc = 3;
+	mutex_lock(&sthyi_mutex);
+	r = sthyi_init_cache();
+	if (r)
 		goto out;
-	}
 
-	if (addr & ~PAGE_MASK)
-		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+	if (time_is_before_jiffies(sthyi_cache.end)) {
+		/* cache expired */
+		r = sthyi_update_cache(rc);
+		if (r)
+			goto out;
+	}
+	*rc = 0;
+	memcpy(dst, sthyi_cache.info, PAGE_SIZE);
+out:
+	mutex_unlock(&sthyi_mutex);
+	return r;
+}
+EXPORT_SYMBOL_GPL(sthyi_fill);
 
-	sctns = (void *)get_zeroed_page(GFP_KERNEL);
-	if (!sctns)
+SYSCALL_DEFINE4(s390_sthyi, unsigned long, function_code, void __user *, buffer,
+		u64 __user *, return_code, unsigned long, flags)
+{
+	u64 sthyi_rc;
+	void *info;
+	int r;
+
+	if (flags)
+		return -EINVAL;
+	if (function_code != STHYI_FC_CP_IFL_CAP)
+		return -EOPNOTSUPP;
+	info = (void *)get_zeroed_page(GFP_KERNEL);
+	if (!info)
 		return -ENOMEM;
-
-	/*
-	 * If we are a guest, we don't want to emulate an emulated
-	 * instruction. We ask the hypervisor to provide the data.
-	 */
-	if (test_facility(74)) {
-		cc = sthyi((u64)sctns);
+	r = sthyi_fill(info, &sthyi_rc);
+	if (r < 0)
+		goto out;
+	if (return_code && put_user(sthyi_rc, return_code)) {
+		r = -EFAULT;
 		goto out;
 	}
-
-	fill_hdr(sctns);
-	fill_stsi(sctns);
-	fill_diag(sctns);
-
+	if (copy_to_user(buffer, info, PAGE_SIZE))
+		r = -EFAULT;
 out:
-	if (!cc) {
-		r = write_guest(vcpu, addr, reg2, sctns, PAGE_SIZE);
-		if (r) {
-			free_page((unsigned long)sctns);
-			return kvm_s390_inject_prog_cond(vcpu, r);
-		}
-	}
-
-	free_page((unsigned long)sctns);
-	vcpu->run->s.regs.gprs[reg2 + 1] = cc ? 4 : 0;
-	kvm_s390_set_psw_cc(vcpu, cc);
+	free_page((unsigned long)info);
 	return r;
 }
diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c
index c8ea715bfe10..ce329c876d8c 100644
--- a/arch/s390/kernel/suspend.c
+++ b/arch/s390/kernel/suspend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Suspend support specific for s390.
  *
@@ -152,7 +153,7 @@ int pfn_is_nosave(unsigned long pfn)
 {
 	unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin));
 	unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end));
-	unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1;
+	unsigned long end_rodata_pfn = PFN_DOWN(__pa(&__end_rodata)) - 1;
 	unsigned long stext_pfn = PFN_DOWN(__pa(&_stext));
 
 	/* Always save lowcore pages (LC protection might be enabled). */
@@ -160,9 +161,9 @@ int pfn_is_nosave(unsigned long pfn)
 		return 0;
 	if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn)
 		return 1;
-	/* Skip memory holes and read-only pages (NSS, DCSS, ...). */
-	if (pfn >= stext_pfn && pfn <= eshared_pfn)
-		return ipl_info.type == IPL_TYPE_NSS ? 1 : 0;
+	/* Skip memory holes and read-only pages (DCSS, ...). */
+	if (pfn >= stext_pfn && pfn <= end_rodata_pfn)
+		return 0;
 	if (tprot(PFN_PHYS(pfn)))
 		return 1;
 	return 0;
diff --git a/arch/s390/kernel/swsusp.S b/arch/s390/kernel/swsusp.S
index 6bebc935e9c2..e99187149f17 100644
--- a/arch/s390/kernel/swsusp.S
+++ b/arch/s390/kernel/swsusp.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * S390 64-bit swsusp implementation
  *
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index b7af452978ca..0090037ab148 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 54fce7b065de..308a7b63348b 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * definitions for sys_call_table, each line represents an
  * entry in the table in the form
@@ -388,3 +389,4 @@ SYSCALL(sys_preadv2,compat_sys_preadv2)
 SYSCALL(sys_pwritev2,compat_sys_pwritev2)
 SYSCALL(sys_s390_guarded_storage,compat_sys_s390_guarded_storage) /* 378 */
 SYSCALL(sys_statx,compat_sys_statx)
+SYSCALL(sys_s390_sthyi,compat_sys_s390_sthyi)
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index fb869b103825..a441cba8d165 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright IBM Corp. 2001, 2009
  *  Author(s): Ulrich Weigand <Ulrich.Weigand@de.ibm.com>,
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index bb47c92476f0..f9b393d4a078 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -8,6 +8,8 @@
 
 #include <linux/workqueue.h>
 #include <linux/bootmem.h>
+#include <linux/uaccess.h>
+#include <linux/sysctl.h>
 #include <linux/cpuset.h>
 #include <linux/device.h>
 #include <linux/export.h>
@@ -29,12 +31,20 @@
 #define PTF_VERTICAL	(1UL)
 #define PTF_CHECK	(2UL)
 
+enum {
+	TOPOLOGY_MODE_HW,
+	TOPOLOGY_MODE_SINGLE,
+	TOPOLOGY_MODE_PACKAGE,
+	TOPOLOGY_MODE_UNINITIALIZED
+};
+
 struct mask_info {
 	struct mask_info *next;
 	unsigned char id;
 	cpumask_t mask;
 };
 
+static int topology_mode = TOPOLOGY_MODE_UNINITIALIZED;
 static void set_topology_timer(void);
 static void topology_work_fn(struct work_struct *work);
 static struct sysinfo_15_1_x *tl_info;
@@ -59,11 +69,26 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
 	cpumask_t mask;
 
 	cpumask_copy(&mask, cpumask_of(cpu));
-	if (!MACHINE_HAS_TOPOLOGY)
-		return mask;
-	for (; info; info = info->next) {
-		if (cpumask_test_cpu(cpu, &info->mask))
-			return info->mask;
+	switch (topology_mode) {
+	case TOPOLOGY_MODE_HW:
+		while (info) {
+			if (cpumask_test_cpu(cpu, &info->mask)) {
+				mask = info->mask;
+				break;
+			}
+			info = info->next;
+		}
+		if (cpumask_empty(&mask))
+			cpumask_copy(&mask, cpumask_of(cpu));
+		break;
+	case TOPOLOGY_MODE_PACKAGE:
+		cpumask_copy(&mask, cpu_present_mask);
+		break;
+	default:
+		/* fallthrough */
+	case TOPOLOGY_MODE_SINGLE:
+		cpumask_copy(&mask, cpumask_of(cpu));
+		break;
 	}
 	return mask;
 }
@@ -74,7 +99,7 @@ static cpumask_t cpu_thread_map(unsigned int cpu)
 	int i;
 
 	cpumask_copy(&mask, cpumask_of(cpu));
-	if (!MACHINE_HAS_TOPOLOGY)
+	if (topology_mode != TOPOLOGY_MODE_HW)
 		return mask;
 	cpu -= cpu % (smp_cpu_mtid + 1);
 	for (i = 0; i <= smp_cpu_mtid; i++)
@@ -108,6 +133,7 @@ static void add_cpus_to_mask(struct topology_core *tl_core,
 			topo->socket_id = socket->id;
 			topo->core_id = rcore;
 			topo->thread_id = lcpu + i;
+			topo->dedicated = tl_core->d;
 			cpumask_set_cpu(lcpu + i, &drawer->mask);
 			cpumask_set_cpu(lcpu + i, &book->mask);
 			cpumask_set_cpu(lcpu + i, &socket->mask);
@@ -184,10 +210,8 @@ static void topology_update_polarization_simple(void)
 {
 	int cpu;
 
-	mutex_lock(&smp_cpu_state_mutex);
 	for_each_possible_cpu(cpu)
 		smp_cpu_set_polarization(cpu, POLARIZATION_HRZ);
-	mutex_unlock(&smp_cpu_state_mutex);
 }
 
 static int ptf(unsigned long fc)
@@ -223,7 +247,7 @@ int topology_set_cpu_management(int fc)
 static void update_cpu_masks(void)
 {
 	struct cpu_topology_s390 *topo;
-	int cpu;
+	int cpu, id;
 
 	for_each_possible_cpu(cpu) {
 		topo = &cpu_topology[cpu];
@@ -231,12 +255,13 @@ static void update_cpu_masks(void)
 		topo->core_mask = cpu_group_map(&socket_info, cpu);
 		topo->book_mask = cpu_group_map(&book_info, cpu);
 		topo->drawer_mask = cpu_group_map(&drawer_info, cpu);
-		if (!MACHINE_HAS_TOPOLOGY) {
+		if (topology_mode != TOPOLOGY_MODE_HW) {
+			id = topology_mode == TOPOLOGY_MODE_PACKAGE ? 0 : cpu;
 			topo->thread_id = cpu;
 			topo->core_id = cpu;
-			topo->socket_id = cpu;
-			topo->book_id = cpu;
-			topo->drawer_id = cpu;
+			topo->socket_id = id;
+			topo->book_id = id;
+			topo->drawer_id = id;
 			if (cpu_present(cpu))
 				cpumask_set_cpu(cpu, &cpus_with_topology);
 		}
@@ -249,11 +274,20 @@ void store_topology(struct sysinfo_15_1_x *info)
 	stsi(info, 15, 1, topology_mnest_limit());
 }
 
+static void __arch_update_dedicated_flag(void *arg)
+{
+	if (topology_cpu_dedicated(smp_processor_id()))
+		set_cpu_flag(CIF_DEDICATED_CPU);
+	else
+		clear_cpu_flag(CIF_DEDICATED_CPU);
+}
+
 static int __arch_update_cpu_topology(void)
 {
 	struct sysinfo_15_1_x *info = tl_info;
 	int rc = 0;
 
+	mutex_lock(&smp_cpu_state_mutex);
 	cpumask_clear(&cpus_with_topology);
 	if (MACHINE_HAS_TOPOLOGY) {
 		rc = 1;
@@ -263,6 +297,7 @@ static int __arch_update_cpu_topology(void)
 	update_cpu_masks();
 	if (!MACHINE_HAS_TOPOLOGY)
 		topology_update_polarization_simple();
+	mutex_unlock(&smp_cpu_state_mutex);
 	return rc;
 }
 
@@ -272,6 +307,7 @@ int arch_update_cpu_topology(void)
 	int cpu, rc;
 
 	rc = __arch_update_cpu_topology();
+	on_each_cpu(__arch_update_dedicated_flag, NULL, 0);
 	for_each_online_cpu(cpu) {
 		dev = get_cpu_device(cpu);
 		kobject_uevent(&dev->kobj, KOBJ_CHANGE);
@@ -289,15 +325,19 @@ void topology_schedule_update(void)
 	schedule_work(&topology_work);
 }
 
-static void topology_timer_fn(unsigned long ignored)
+static void topology_flush_work(void)
+{
+	flush_work(&topology_work);
+}
+
+static void topology_timer_fn(struct timer_list *unused)
 {
 	if (ptf(PTF_CHECK))
 		topology_schedule_update();
 	set_topology_timer();
 }
 
-static struct timer_list topology_timer =
-	TIMER_DEFERRED_INITIALIZER(topology_timer_fn, 0, 0);
+static struct timer_list topology_timer;
 
 static atomic_t topology_poll = ATOMIC_INIT(0);
 
@@ -404,9 +444,39 @@ static struct attribute_group topology_cpu_attr_group = {
 	.attrs = topology_cpu_attrs,
 };
 
+static ssize_t cpu_dedicated_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	int cpu = dev->id;
+	ssize_t count;
+
+	mutex_lock(&smp_cpu_state_mutex);
+	count = sprintf(buf, "%d\n", topology_cpu_dedicated(cpu));
+	mutex_unlock(&smp_cpu_state_mutex);
+	return count;
+}
+static DEVICE_ATTR(dedicated, 0444, cpu_dedicated_show, NULL);
+
+static struct attribute *topology_extra_cpu_attrs[] = {
+	&dev_attr_dedicated.attr,
+	NULL,
+};
+
+static struct attribute_group topology_extra_cpu_attr_group = {
+	.attrs = topology_extra_cpu_attrs,
+};
+
 int topology_cpu_init(struct cpu *cpu)
 {
-	return sysfs_create_group(&cpu->dev.kobj, &topology_cpu_attr_group);
+	int rc;
+
+	rc = sysfs_create_group(&cpu->dev.kobj, &topology_cpu_attr_group);
+	if (rc || !MACHINE_HAS_TOPOLOGY)
+		return rc;
+	rc = sysfs_create_group(&cpu->dev.kobj, &topology_extra_cpu_attr_group);
+	if (rc)
+		sysfs_remove_group(&cpu->dev.kobj, &topology_cpu_attr_group);
+	return rc;
 }
 
 static const struct cpumask *cpu_thread_mask(int cpu)
@@ -459,6 +529,12 @@ void __init topology_init_early(void)
 	struct sysinfo_15_1_x *info;
 
 	set_sched_topology(s390_topology);
+	if (topology_mode == TOPOLOGY_MODE_UNINITIALIZED) {
+		if (MACHINE_HAS_TOPOLOGY)
+			topology_mode = TOPOLOGY_MODE_HW;
+		else
+			topology_mode = TOPOLOGY_MODE_SINGLE;
+	}
 	if (!MACHINE_HAS_TOPOLOGY)
 		goto out;
 	tl_info = memblock_virt_alloc(PAGE_SIZE, PAGE_SIZE);
@@ -472,14 +548,101 @@ void __init topology_init_early(void)
 	alloc_masks(info, &drawer_info, 3);
 out:
 	__arch_update_cpu_topology();
+	__arch_update_dedicated_flag(NULL);
+}
+
+static inline int topology_get_mode(int enabled)
+{
+	if (!enabled)
+		return TOPOLOGY_MODE_SINGLE;
+	return MACHINE_HAS_TOPOLOGY ? TOPOLOGY_MODE_HW : TOPOLOGY_MODE_PACKAGE;
+}
+
+static inline int topology_is_enabled(void)
+{
+	return topology_mode != TOPOLOGY_MODE_SINGLE;
+}
+
+static int __init topology_setup(char *str)
+{
+	bool enabled;
+	int rc;
+
+	rc = kstrtobool(str, &enabled);
+	if (rc)
+		return rc;
+	topology_mode = topology_get_mode(enabled);
+	return 0;
 }
+early_param("topology", topology_setup);
+
+static int topology_ctl_handler(struct ctl_table *ctl, int write,
+				void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	unsigned int len;
+	int new_mode;
+	char buf[2];
+
+	if (!*lenp || *ppos) {
+		*lenp = 0;
+		return 0;
+	}
+	if (!write) {
+		strncpy(buf, topology_is_enabled() ? "1\n" : "0\n",
+			ARRAY_SIZE(buf));
+		len = strnlen(buf, ARRAY_SIZE(buf));
+		if (len > *lenp)
+			len = *lenp;
+		if (copy_to_user(buffer, buf, len))
+			return -EFAULT;
+		goto out;
+	}
+	len = *lenp;
+	if (copy_from_user(buf, buffer, len > sizeof(buf) ? sizeof(buf) : len))
+		return -EFAULT;
+	if (buf[0] != '0' && buf[0] != '1')
+		return -EINVAL;
+	mutex_lock(&smp_cpu_state_mutex);
+	new_mode = topology_get_mode(buf[0] == '1');
+	if (topology_mode != new_mode) {
+		topology_mode = new_mode;
+		topology_schedule_update();
+	}
+	mutex_unlock(&smp_cpu_state_mutex);
+	topology_flush_work();
+out:
+	*lenp = len;
+	*ppos += len;
+	return 0;
+}
+
+static struct ctl_table topology_ctl_table[] = {
+	{
+		.procname	= "topology",
+		.mode		= 0644,
+		.proc_handler	= topology_ctl_handler,
+	},
+	{ },
+};
+
+static struct ctl_table topology_dir_table[] = {
+	{
+		.procname	= "s390",
+		.maxlen		= 0,
+		.mode		= 0555,
+		.child		= topology_ctl_table,
+	},
+	{ },
+};
 
 static int __init topology_init(void)
 {
+	timer_setup(&topology_timer, topology_timer_fn, TIMER_DEFERRABLE);
 	if (MACHINE_HAS_TOPOLOGY)
 		set_topology_timer();
 	else
 		topology_update_polarization_simple();
+	register_sysctl_table(topology_dir_table);
 	return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
 }
 device_initcall(topology_init);
diff --git a/arch/s390/kernel/trace.c b/arch/s390/kernel/trace.c
index dde7654f5c68..490b52e85014 100644
--- a/arch/s390/kernel/trace.c
+++ b/arch/s390/kernel/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tracepoint definitions for s390
  *
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index 442e5423ce3d..a5297a22bc1e 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999, 2000
diff --git a/arch/s390/kernel/uprobes.c b/arch/s390/kernel/uprobes.c
index d94baa8db507..d9d1f512f019 100644
--- a/arch/s390/kernel/uprobes.c
+++ b/arch/s390/kernel/uprobes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  User-space Probes (UProbes) for s390
  *
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index eacda05b45d7..0520854a4dab 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -140,6 +140,20 @@ static void __init vdso_init_data(struct vdso_data *vd)
  */
 #define SEGMENT_ORDER	2
 
+/*
+ * The initial vdso_data structure for the boot CPU. Eventually
+ * it is replaced with a properly allocated structure in vdso_init.
+ * This is necessary because a valid S390_lowcore.vdso_per_cpu_data
+ * pointer is required to be able to return from an interrupt or
+ * program check. See the exit paths in entry.S.
+ */
+struct vdso_data boot_vdso_data __initdata;
+
+void __init vdso_alloc_boot_cpu(struct lowcore *lowcore)
+{
+	lowcore->vdso_per_cpu_data = (unsigned long) &boot_vdso_data;
+}
+
 int vdso_alloc_per_cpu(struct lowcore *lowcore)
 {
 	unsigned long segment_table, page_table, page_frame;
@@ -166,10 +180,8 @@ int vdso_alloc_per_cpu(struct lowcore *lowcore)
 	vd->node_id = cpu_to_node(vd->cpu_nr);
 
 	/* Set up access register mode page table */
-	clear_table((unsigned long *) segment_table, _SEGMENT_ENTRY_EMPTY,
-		    PAGE_SIZE << SEGMENT_ORDER);
-	clear_table((unsigned long *) page_table, _PAGE_INVALID,
-		    256*sizeof(unsigned long));
+	memset64((u64 *)segment_table, _SEGMENT_ENTRY_EMPTY, _CRST_ENTRIES);
+	memset64((u64 *)page_table, _PAGE_INVALID, PTRS_PER_PTE);
 
 	*(unsigned long *) segment_table = _SEGMENT_ENTRY + page_table;
 	*(unsigned long *) page_table = _PAGE_PROTECT + page_frame;
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index 6cc947896c77..308564b9bf68 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # List of files in the vdso, has to be asm only for now
 
 KCOV_INSTRUMENT := n
diff --git a/arch/s390/kernel/vdso32/getcpu.S b/arch/s390/kernel/vdso32/getcpu.S
index c1ed0b72030f..6e30769dd017 100644
--- a/arch/s390/kernel/vdso32/getcpu.S
+++ b/arch/s390/kernel/vdso32/getcpu.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Userland implementation of getcpu() for 32 bits processes in a
  * s390 kernel for use in the vDSO
diff --git a/arch/s390/kernel/vdso32/note.S b/arch/s390/kernel/vdso32/note.S
index 79a071e4357e..db19d0680a0a 100644
--- a/arch/s390/kernel/vdso32/note.S
+++ b/arch/s390/kernel/vdso32/note.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
  * Here we can supply some information useful to userland.
diff --git a/arch/s390/kernel/vdso32/vdso32.lds.S b/arch/s390/kernel/vdso32/vdso32.lds.S
index 263a7f9eee1e..721c4954cb6e 100644
--- a/arch/s390/kernel/vdso32/vdso32.lds.S
+++ b/arch/s390/kernel/vdso32/vdso32.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is the infamous ld script for the 32 bits vdso
  * library
diff --git a/arch/s390/kernel/vdso32/vdso32_wrapper.S b/arch/s390/kernel/vdso32/vdso32_wrapper.S
index ae42f8ce350b..de2fb930471a 100644
--- a/arch/s390/kernel/vdso32/vdso32_wrapper.S
+++ b/arch/s390/kernel/vdso32/vdso32_wrapper.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <asm/page.h>
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index 2d54c18089eb..f81ae7998883 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # List of files in the vdso, has to be asm only for now
 
 KCOV_INSTRUMENT := n
diff --git a/arch/s390/kernel/vdso64/getcpu.S b/arch/s390/kernel/vdso64/getcpu.S
index 4cbe98291931..43983764b959 100644
--- a/arch/s390/kernel/vdso64/getcpu.S
+++ b/arch/s390/kernel/vdso64/getcpu.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Userland implementation of getcpu() for 64 bits processes in a
  * s390 kernel for use in the vDSO
diff --git a/arch/s390/kernel/vdso64/vdso64.lds.S b/arch/s390/kernel/vdso64/vdso64.lds.S
index 9e3dbbcc1cfc..7ddb116b5e2e 100644
--- a/arch/s390/kernel/vdso64/vdso64.lds.S
+++ b/arch/s390/kernel/vdso64/vdso64.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is the infamous ld script for the 64 bits vdso
  * library
diff --git a/arch/s390/kernel/vdso64/vdso64_wrapper.S b/arch/s390/kernel/vdso64/vdso64_wrapper.S
index c245842b516f..672184998623 100644
--- a/arch/s390/kernel/vdso64/vdso64_wrapper.S
+++ b/arch/s390/kernel/vdso64/vdso64_wrapper.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <asm/page.h>
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index 6e2c42bd1c3b..a049ff005f03 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script to make s390 Linux kernel
  * Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
  */
@@ -59,12 +60,7 @@ SECTIONS
 
 	RO_DATA_SECTION(PAGE_SIZE)
 
-#ifdef CONFIG_SHARED_KERNEL
-	. = ALIGN(0x100000);	/* VM shared segments are 1MB aligned */
-#endif
-
 	. = ALIGN(PAGE_SIZE);
-	_eshared = .;		/* End of shareable data */
 	_sdata = .;		/* Start of data section */
 
 	. = ALIGN(PAGE_SIZE);
@@ -104,6 +100,29 @@ SECTIONS
 		EXIT_DATA
 	}
 
+	/*
+	 * struct alt_inst entries. From the header (alternative.h):
+	 * "Alternative instructions for different CPU types or capabilities"
+	 * Think locking instructions on spinlocks.
+	 * Note, that it is a part of __init region.
+	 */
+	. = ALIGN(8);
+	.altinstructions : {
+		__alt_instructions = .;
+		*(.altinstructions)
+		__alt_instructions_end = .;
+	}
+
+	/*
+	 * And here are the replacement instructions. The linker sticks
+	 * them as binary blobs. The .altinstructions has enough data to
+	 * get the address and the length of them to patch the kernel safely.
+	 * Note, that it is a part of __init region.
+	 */
+	.altinstr_replacement : {
+		*(.altinstr_replacement)
+	}
+
 	/* early.c uses stsi, which requires page aligned data. */
 	. = ALIGN(PAGE_SIZE);
 	INIT_DATA_SECTION(0x100)
diff --git a/arch/s390/kvm/Kconfig b/arch/s390/kvm/Kconfig
index b1900239b0ab..9a4594e0a1ff 100644
--- a/arch/s390/kvm/Kconfig
+++ b/arch/s390/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
diff --git a/arch/s390/kvm/Makefile b/arch/s390/kvm/Makefile
index 09a9e6dfc09f..6048b1c6e580 100644
--- a/arch/s390/kvm/Makefile
+++ b/arch/s390/kvm/Makefile
@@ -12,6 +12,6 @@ common-objs = $(KVM)/kvm_main.o $(KVM)/eventfd.o  $(KVM)/async_pf.o $(KVM)/irqch
 ccflags-y := -Ivirt/kvm -Iarch/s390/kvm
 
 kvm-objs := $(common-objs) kvm-s390.o intercept.o interrupt.o priv.o sigp.o
-kvm-objs += diag.o gaccess.o guestdbg.o sthyi.o vsie.o
+kvm-objs += diag.o gaccess.o guestdbg.o vsie.o
 
 obj-$(CONFIG_KVM) += kvm.o
diff --git a/arch/s390/kvm/gaccess.c b/arch/s390/kvm/gaccess.c
index 3cc77391a102..c24bfa72baf7 100644
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * guest access functions
  *
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index a4752bf6b526..8fe034beb623 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -18,6 +18,7 @@
 #include <asm/kvm_host.h>
 #include <asm/asm-offsets.h>
 #include <asm/irq.h>
+#include <asm/sysinfo.h>
 
 #include "kvm-s390.h"
 #include "gaccess.h"
@@ -360,6 +361,61 @@ static int handle_partial_execution(struct kvm_vcpu *vcpu)
 	return -EOPNOTSUPP;
 }
 
+/*
+ * Handle the sthyi instruction that provides the guest with system
+ * information, like current CPU resources available at each level of
+ * the machine.
+ */
+int handle_sthyi(struct kvm_vcpu *vcpu)
+{
+	int reg1, reg2, r = 0;
+	u64 code, addr, cc = 0, rc = 0;
+	struct sthyi_sctns *sctns = NULL;
+
+	if (!test_kvm_facility(vcpu->kvm, 74))
+		return kvm_s390_inject_program_int(vcpu, PGM_OPERATION);
+
+	kvm_s390_get_regs_rre(vcpu, &reg1, &reg2);
+	code = vcpu->run->s.regs.gprs[reg1];
+	addr = vcpu->run->s.regs.gprs[reg2];
+
+	vcpu->stat.instruction_sthyi++;
+	VCPU_EVENT(vcpu, 3, "STHYI: fc: %llu addr: 0x%016llx", code, addr);
+	trace_kvm_s390_handle_sthyi(vcpu, code, addr);
+
+	if (reg1 == reg2 || reg1 & 1 || reg2 & 1)
+		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
+	if (code & 0xffff) {
+		cc = 3;
+		rc = 4;
+		goto out;
+	}
+
+	if (addr & ~PAGE_MASK)
+		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+
+	sctns = (void *)get_zeroed_page(GFP_KERNEL);
+	if (!sctns)
+		return -ENOMEM;
+
+	cc = sthyi_fill(sctns, &rc);
+
+out:
+	if (!cc) {
+		r = write_guest(vcpu, addr, reg2, sctns, PAGE_SIZE);
+		if (r) {
+			free_page((unsigned long)sctns);
+			return kvm_s390_inject_prog_cond(vcpu, r);
+		}
+	}
+
+	free_page((unsigned long)sctns);
+	vcpu->run->s.regs.gprs[reg2 + 1] = rc;
+	kvm_s390_set_psw_cc(vcpu, cc);
+	return r;
+}
+
 static int handle_operexc(struct kvm_vcpu *vcpu)
 {
 	psw_t oldpsw, newpsw;
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index a832ad031cee..329b2843fee2 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -2483,11 +2483,11 @@ void kvm_s390_reinject_machine_check(struct kvm_vcpu *vcpu,
 
 	mci.val = mcck_info->mcic;
 	if (mci.sr)
-		cr14 |= MCCK_CR14_RECOVERY_SUB_MASK;
+		cr14 |= CR14_RECOVERY_SUBMASK;
 	if (mci.dg)
-		cr14 |= MCCK_CR14_DEGRAD_SUB_MASK;
+		cr14 |= CR14_DEGRADATION_SUBMASK;
 	if (mci.w)
-		cr14 |= MCCK_CR14_WARN_SUB_MASK;
+		cr14 |= CR14_WARNING_SUBMASK;
 
 	mchk = mci.ck ? &inti.mchk : &irq.u.mchk;
 	mchk->cr14 = cr14;
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 40d0a1a97889..4bc70afe0a10 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1884,8 +1884,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 
 	rc = -ENOMEM;
 
-	ratelimit_state_init(&kvm->arch.sthyi_limit, 5 * HZ, 500);
-
 	kvm->arch.use_esca = 0; /* start with basic SCA */
 	if (!sclp.has_64bscao)
 		alloc_flags |= GFP_DMA;
@@ -3283,7 +3281,7 @@ static void sync_regs(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	 */
 	if ((kvm_run->kvm_dirty_regs & KVM_SYNC_RICCB) &&
 	    test_kvm_facility(vcpu->kvm, 64) &&
-	    riccb->valid &&
+	    riccb->v &&
 	    !(vcpu->arch.sie_block->ecb3 & ECB3_RI)) {
 		VCPU_EVENT(vcpu, 3, "%s", "ENABLE: RI (sync_regs)");
 		vcpu->arch.sie_block->ecb3 |= ECB3_RI;
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index 9f8fdd7b2311..10d65dfbc306 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -242,6 +242,8 @@ static inline void kvm_s390_retry_instr(struct kvm_vcpu *vcpu)
 	kvm_s390_rewind_psw(vcpu, kvm_s390_get_ilen(vcpu));
 }
 
+int handle_sthyi(struct kvm_vcpu *vcpu);
+
 /* implemented in priv.c */
 int is_valid_psw(psw_t *psw);
 int kvm_s390_handle_aa(struct kvm_vcpu *vcpu);
@@ -268,9 +270,6 @@ void kvm_s390_vsie_destroy(struct kvm *kvm);
 int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
 int kvm_s390_handle_sigp_pei(struct kvm_vcpu *vcpu);
 
-/* implemented in sthyi.c */
-int handle_sthyi(struct kvm_vcpu *vcpu);
-
 /* implemented in kvm-s390.c */
 void kvm_s390_set_tod_clock_ext(struct kvm *kvm,
 				 const struct kvm_s390_vm_tod_clock *gtod);
diff --git a/arch/s390/kvm/trace-s390.h b/arch/s390/kvm/trace-s390.h
index 78b7e847984a..6f0209d45164 100644
--- a/arch/s390/kvm/trace-s390.h
+++ b/arch/s390/kvm/trace-s390.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVMS390_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVMS390_H
 
diff --git a/arch/s390/kvm/trace.h b/arch/s390/kvm/trace.h
index 4fc9d4e5be89..aa419eb6a0c8 100644
--- a/arch/s390/kvm/trace.h
+++ b/arch/s390/kvm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_H
 
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 1d1af31e8354..9bfe0802684b 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for s390-specific library files..
 #
diff --git a/arch/s390/lib/delay.c b/arch/s390/lib/delay.c
index 7f17555ad4d5..d4aa10795605 100644
--- a/arch/s390/lib/delay.c
+++ b/arch/s390/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Precise Delay Loops for S390
  *
diff --git a/arch/s390/lib/find.c b/arch/s390/lib/find.c
index d90b9245ea41..96a8a2e2d067 100644
--- a/arch/s390/lib/find.c
+++ b/arch/s390/lib/find.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MSB0 numbered special bitops handling.
  *
diff --git a/arch/s390/lib/mem.S b/arch/s390/lib/mem.S
index 7ff79a4ff00c..495c9c4bacc7 100644
--- a/arch/s390/lib/mem.S
+++ b/arch/s390/lib/mem.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * String handling functions.
  *
@@ -78,21 +79,25 @@ ENTRY(memset)
 	ex	%r4,0(%r3)
 	br	%r14
 .Lmemset_fill:
-	stc	%r3,0(%r2)
 	cghi	%r4,1
 	lgr	%r1,%r2
-	ber	%r14
+	je	.Lmemset_fill_exit
 	aghi	%r4,-2
-	srlg	%r3,%r4,8
-	ltgr	%r3,%r3
+	srlg	%r5,%r4,8
+	ltgr	%r5,%r5
 	jz	.Lmemset_fill_remainder
 .Lmemset_fill_loop:
-	mvc	1(256,%r1),0(%r1)
+	stc	%r3,0(%r1)
+	mvc	1(255,%r1),0(%r1)
 	la	%r1,256(%r1)
-	brctg	%r3,.Lmemset_fill_loop
+	brctg	%r5,.Lmemset_fill_loop
 .Lmemset_fill_remainder:
-	larl	%r3,.Lmemset_mvc
-	ex	%r4,0(%r3)
+	stc	%r3,0(%r1)
+	larl	%r5,.Lmemset_mvc
+	ex	%r4,0(%r5)
+	br	%r14
+.Lmemset_fill_exit:
+	stc	%r3,0(%r1)
 	br	%r14
 .Lmemset_xc:
 	xc	0(1,%r1),0(%r1)
@@ -126,3 +131,47 @@ ENTRY(memcpy)
 .Lmemcpy_mvc:
 	mvc	0(1,%r1),0(%r3)
 EXPORT_SYMBOL(memcpy)
+
+/*
+ * __memset16/32/64
+ *
+ * void *__memset16(uint16_t *s, uint16_t v, size_t count)
+ * void *__memset32(uint32_t *s, uint32_t v, size_t count)
+ * void *__memset64(uint64_t *s, uint64_t v, size_t count)
+ */
+.macro __MEMSET bits,bytes,insn
+ENTRY(__memset\bits)
+	ltgr	%r4,%r4
+	bzr	%r14
+	cghi	%r4,\bytes
+	je	.L__memset_exit\bits
+	aghi	%r4,-(\bytes+1)
+	srlg	%r5,%r4,8
+	ltgr	%r5,%r5
+	lgr	%r1,%r2
+	jz	.L__memset_remainder\bits
+.L__memset_loop\bits:
+	\insn	%r3,0(%r1)
+	mvc	\bytes(256-\bytes,%r1),0(%r1)
+	la	%r1,256(%r1)
+	brctg	%r5,.L__memset_loop\bits
+.L__memset_remainder\bits:
+	\insn	%r3,0(%r1)
+	larl	%r5,.L__memset_mvc\bits
+	ex	%r4,0(%r5)
+	br	%r14
+.L__memset_exit\bits:
+	\insn	%r3,0(%r2)
+	br	%r14
+.L__memset_mvc\bits:
+	mvc	\bytes(1,%r1),0(%r1)
+.endm
+
+__MEMSET 16,2,sth
+EXPORT_SYMBOL(__memset16)
+
+__MEMSET 32,4,st
+EXPORT_SYMBOL(__memset32)
+
+__MEMSET 64,8,stg
+EXPORT_SYMBOL(__memset64)
diff --git a/arch/s390/lib/probes.c b/arch/s390/lib/probes.c
index 1963ddbf4ab3..1e184a03442d 100644
--- a/arch/s390/lib/probes.c
+++ b/arch/s390/lib/probes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Common helper functions for kprobes and uprobes
  *
diff --git a/arch/s390/lib/spinlock.c b/arch/s390/lib/spinlock.c
index b12663d653d8..84c0faeaf7ea 100644
--- a/arch/s390/lib/spinlock.c
+++ b/arch/s390/lib/spinlock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Out of line spinlock code.
  *
@@ -8,8 +9,11 @@
 #include <linux/types.h>
 #include <linux/export.h>
 #include <linux/spinlock.h>
+#include <linux/jiffies.h>
 #include <linux/init.h>
 #include <linux/smp.h>
+#include <linux/percpu.h>
+#include <asm/alternative.h>
 #include <asm/io.h>
 
 int spin_retry = -1;
@@ -32,14 +36,46 @@ static int __init spin_retry_setup(char *str)
 }
 __setup("spin_retry=", spin_retry_setup);
 
+struct spin_wait {
+	struct spin_wait *next, *prev;
+	int node_id;
+} __aligned(32);
+
+static DEFINE_PER_CPU_ALIGNED(struct spin_wait, spin_wait[4]);
+
+#define _Q_LOCK_CPU_OFFSET	0
+#define _Q_LOCK_STEAL_OFFSET	16
+#define _Q_TAIL_IDX_OFFSET	18
+#define _Q_TAIL_CPU_OFFSET	20
+
+#define _Q_LOCK_CPU_MASK	0x0000ffff
+#define _Q_LOCK_STEAL_ADD	0x00010000
+#define _Q_LOCK_STEAL_MASK	0x00030000
+#define _Q_TAIL_IDX_MASK	0x000c0000
+#define _Q_TAIL_CPU_MASK	0xfff00000
+
+#define _Q_LOCK_MASK		(_Q_LOCK_CPU_MASK | _Q_LOCK_STEAL_MASK)
+#define _Q_TAIL_MASK		(_Q_TAIL_IDX_MASK | _Q_TAIL_CPU_MASK)
+
+void arch_spin_lock_setup(int cpu)
+{
+	struct spin_wait *node;
+	int ix;
+
+	node = per_cpu_ptr(&spin_wait[0], cpu);
+	for (ix = 0; ix < 4; ix++, node++) {
+		memset(node, 0, sizeof(*node));
+		node->node_id = ((cpu + 1) << _Q_TAIL_CPU_OFFSET) +
+			(ix << _Q_TAIL_IDX_OFFSET);
+	}
+}
+
 static inline int arch_load_niai4(int *lock)
 {
 	int owner;
 
 	asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
-		"	.long	0xb2fa0040\n"	/* NIAI 4 */
-#endif
+		ALTERNATIVE("", ".long 0xb2fa0040", 49)	/* NIAI 4 */
 		"	l	%0,%1\n"
 		: "=d" (owner) : "Q" (*lock) : "memory");
        return owner;
@@ -50,9 +86,7 @@ static inline int arch_cmpxchg_niai8(int *lock, int old, int new)
 	int expected = old;
 
 	asm volatile(
-#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
-		"	.long	0xb2fa0080\n"	/* NIAI 8 */
-#endif
+		ALTERNATIVE("", ".long 0xb2fa0080", 49)	/* NIAI 8 */
 		"	cs	%0,%3,%1\n"
 		: "=d" (old), "=Q" (*lock)
 		: "0" (old), "d" (new), "Q" (*lock)
@@ -60,75 +94,160 @@ static inline int arch_cmpxchg_niai8(int *lock, int old, int new)
 	return expected == old;
 }
 
-void arch_spin_lock_wait(arch_spinlock_t *lp)
+static inline struct spin_wait *arch_spin_decode_tail(int lock)
 {
-	int cpu = SPINLOCK_LOCKVAL;
-	int owner, count;
+	int ix, cpu;
+
+	ix = (lock & _Q_TAIL_IDX_MASK) >> _Q_TAIL_IDX_OFFSET;
+	cpu = (lock & _Q_TAIL_CPU_MASK) >> _Q_TAIL_CPU_OFFSET;
+	return per_cpu_ptr(&spin_wait[ix], cpu - 1);
+}
+
+static inline int arch_spin_yield_target(int lock, struct spin_wait *node)
+{
+	if (lock & _Q_LOCK_CPU_MASK)
+		return lock & _Q_LOCK_CPU_MASK;
+	if (node == NULL || node->prev == NULL)
+		return 0;	/* 0 -> no target cpu */
+	while (node->prev)
+		node = node->prev;
+	return node->node_id >> _Q_TAIL_CPU_OFFSET;
+}
+
+static inline void arch_spin_lock_queued(arch_spinlock_t *lp)
+{
+	struct spin_wait *node, *next;
+	int lockval, ix, node_id, tail_id, old, new, owner, count;
+
+	ix = S390_lowcore.spinlock_index++;
+	barrier();
+	lockval = SPINLOCK_LOCKVAL;	/* cpu + 1 */
+	node = this_cpu_ptr(&spin_wait[ix]);
+	node->prev = node->next = NULL;
+	node_id = node->node_id;
+
+	/* Enqueue the node for this CPU in the spinlock wait queue */
+	while (1) {
+		old = READ_ONCE(lp->lock);
+		if ((old & _Q_LOCK_CPU_MASK) == 0 &&
+		    (old & _Q_LOCK_STEAL_MASK) != _Q_LOCK_STEAL_MASK) {
+			/*
+			 * The lock is free but there may be waiters.
+			 * With no waiters simply take the lock, if there
+			 * are waiters try to steal the lock. The lock may
+			 * be stolen three times before the next queued
+			 * waiter will get the lock.
+			 */
+			new = (old ? (old + _Q_LOCK_STEAL_ADD) : 0) | lockval;
+			if (__atomic_cmpxchg_bool(&lp->lock, old, new))
+				/* Got the lock */
+				goto out;
+			/* lock passing in progress */
+			continue;
+		}
+		/* Make the node of this CPU the new tail. */
+		new = node_id | (old & _Q_LOCK_MASK);
+		if (__atomic_cmpxchg_bool(&lp->lock, old, new))
+			break;
+	}
+	/* Set the 'next' pointer of the tail node in the queue */
+	tail_id = old & _Q_TAIL_MASK;
+	if (tail_id != 0) {
+		node->prev = arch_spin_decode_tail(tail_id);
+		WRITE_ONCE(node->prev->next, node);
+	}
 
 	/* Pass the virtual CPU to the lock holder if it is not running */
-	owner = arch_load_niai4(&lp->lock);
-	if (owner && arch_vcpu_is_preempted(~owner))
-		smp_yield_cpu(~owner);
+	owner = arch_spin_yield_target(old, node);
+	if (owner && arch_vcpu_is_preempted(owner - 1))
+		smp_yield_cpu(owner - 1);
 
+	/* Spin on the CPU local node->prev pointer */
+	if (tail_id != 0) {
+		count = spin_retry;
+		while (READ_ONCE(node->prev) != NULL) {
+			if (count-- >= 0)
+				continue;
+			count = spin_retry;
+			/* Query running state of lock holder again. */
+			owner = arch_spin_yield_target(old, node);
+			if (owner && arch_vcpu_is_preempted(owner - 1))
+				smp_yield_cpu(owner - 1);
+		}
+	}
+
+	/* Spin on the lock value in the spinlock_t */
 	count = spin_retry;
 	while (1) {
-		owner = arch_load_niai4(&lp->lock);
-		/* Try to get the lock if it is free. */
+		old = READ_ONCE(lp->lock);
+		owner = old & _Q_LOCK_CPU_MASK;
 		if (!owner) {
-			if (arch_cmpxchg_niai8(&lp->lock, 0, cpu))
-				return;
+			tail_id = old & _Q_TAIL_MASK;
+			new = ((tail_id != node_id) ? tail_id : 0) | lockval;
+			if (__atomic_cmpxchg_bool(&lp->lock, old, new))
+				/* Got the lock */
+				break;
 			continue;
 		}
 		if (count-- >= 0)
 			continue;
 		count = spin_retry;
-		/*
-		 * For multiple layers of hypervisors, e.g. z/VM + LPAR
-		 * yield the CPU unconditionally. For LPAR rely on the
-		 * sense running status.
-		 */
-		if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(~owner))
-			smp_yield_cpu(~owner);
+		if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(owner - 1))
+			smp_yield_cpu(owner - 1);
 	}
+
+	/* Pass lock_spin job to next CPU in the queue */
+	if (node_id && tail_id != node_id) {
+		/* Wait until the next CPU has set up the 'next' pointer */
+		while ((next = READ_ONCE(node->next)) == NULL)
+			;
+		next->prev = NULL;
+	}
+
+ out:
+	S390_lowcore.spinlock_index--;
 }
-EXPORT_SYMBOL(arch_spin_lock_wait);
 
-void arch_spin_lock_wait_flags(arch_spinlock_t *lp, unsigned long flags)
+static inline void arch_spin_lock_classic(arch_spinlock_t *lp)
 {
-	int cpu = SPINLOCK_LOCKVAL;
-	int owner, count;
+	int lockval, old, new, owner, count;
 
-	local_irq_restore(flags);
+	lockval = SPINLOCK_LOCKVAL;	/* cpu + 1 */
 
 	/* Pass the virtual CPU to the lock holder if it is not running */
-	owner = arch_load_niai4(&lp->lock);
-	if (owner && arch_vcpu_is_preempted(~owner))
-		smp_yield_cpu(~owner);
+	owner = arch_spin_yield_target(READ_ONCE(lp->lock), NULL);
+	if (owner && arch_vcpu_is_preempted(owner - 1))
+		smp_yield_cpu(owner - 1);
 
 	count = spin_retry;
 	while (1) {
-		owner = arch_load_niai4(&lp->lock);
+		old = arch_load_niai4(&lp->lock);
+		owner = old & _Q_LOCK_CPU_MASK;
 		/* Try to get the lock if it is free. */
 		if (!owner) {
-			local_irq_disable();
-			if (arch_cmpxchg_niai8(&lp->lock, 0, cpu))
-				return;
-			local_irq_restore(flags);
+			new = (old & _Q_TAIL_MASK) | lockval;
+			if (arch_cmpxchg_niai8(&lp->lock, old, new))
+				/* Got the lock */
+			       return;
 			continue;
 		}
 		if (count-- >= 0)
 			continue;
 		count = spin_retry;
-		/*
-		 * For multiple layers of hypervisors, e.g. z/VM + LPAR
-		 * yield the CPU unconditionally. For LPAR rely on the
-		 * sense running status.
-		 */
-		if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(~owner))
-			smp_yield_cpu(~owner);
+		if (!MACHINE_IS_LPAR || arch_vcpu_is_preempted(owner - 1))
+			smp_yield_cpu(owner - 1);
 	}
 }
-EXPORT_SYMBOL(arch_spin_lock_wait_flags);
+
+void arch_spin_lock_wait(arch_spinlock_t *lp)
+{
+	/* Use classic spinlocks + niai if the steal time is >= 10% */
+	if (test_cpu_flag(CIF_DEDICATED_CPU))
+		arch_spin_lock_queued(lp);
+	else
+		arch_spin_lock_classic(lp);
+}
+EXPORT_SYMBOL(arch_spin_lock_wait);
 
 int arch_spin_trylock_retry(arch_spinlock_t *lp)
 {
@@ -147,126 +266,59 @@ int arch_spin_trylock_retry(arch_spinlock_t *lp)
 }
 EXPORT_SYMBOL(arch_spin_trylock_retry);
 
-void _raw_read_lock_wait(arch_rwlock_t *rw)
+void arch_read_lock_wait(arch_rwlock_t *rw)
 {
-	int count = spin_retry;
-	int owner, old;
-
-#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
-	__RAW_LOCK(&rw->lock, -1, __RAW_OP_ADD);
-#endif
-	owner = 0;
-	while (1) {
-		if (count-- <= 0) {
-			if (owner && arch_vcpu_is_preempted(~owner))
-				smp_yield_cpu(~owner);
-			count = spin_retry;
-		}
-		old = ACCESS_ONCE(rw->lock);
-		owner = ACCESS_ONCE(rw->owner);
-		if (old < 0)
-			continue;
-		if (__atomic_cmpxchg_bool(&rw->lock, old, old + 1))
-			return;
+	if (unlikely(in_interrupt())) {
+		while (READ_ONCE(rw->cnts) & 0x10000)
+			barrier();
+		return;
 	}
+
+	/* Remove this reader again to allow recursive read locking */
+	__atomic_add_const(-1, &rw->cnts);
+	/* Put the reader into the wait queue */
+	arch_spin_lock(&rw->wait);
+	/* Now add this reader to the count value again */
+	__atomic_add_const(1, &rw->cnts);
+	/* Loop until the writer is done */
+	while (READ_ONCE(rw->cnts) & 0x10000)
+		barrier();
+	arch_spin_unlock(&rw->wait);
 }
-EXPORT_SYMBOL(_raw_read_lock_wait);
+EXPORT_SYMBOL(arch_read_lock_wait);
 
-int _raw_read_trylock_retry(arch_rwlock_t *rw)
+void arch_write_lock_wait(arch_rwlock_t *rw)
 {
-	int count = spin_retry;
 	int old;
 
-	while (count-- > 0) {
-		old = ACCESS_ONCE(rw->lock);
-		if (old < 0)
-			continue;
-		if (__atomic_cmpxchg_bool(&rw->lock, old, old + 1))
-			return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(_raw_read_trylock_retry);
-
-#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+	/* Add this CPU to the write waiters */
+	__atomic_add(0x20000, &rw->cnts);
 
-void _raw_write_lock_wait(arch_rwlock_t *rw, int prev)
-{
-	int count = spin_retry;
-	int owner, old;
+	/* Put the writer into the wait queue */
+	arch_spin_lock(&rw->wait);
 
-	owner = 0;
 	while (1) {
-		if (count-- <= 0) {
-			if (owner && arch_vcpu_is_preempted(~owner))
-				smp_yield_cpu(~owner);
-			count = spin_retry;
-		}
-		old = ACCESS_ONCE(rw->lock);
-		owner = ACCESS_ONCE(rw->owner);
-		smp_mb();
-		if (old >= 0) {
-			prev = __RAW_LOCK(&rw->lock, 0x80000000, __RAW_OP_OR);
-			old = prev;
-		}
-		if ((old & 0x7fffffff) == 0 && prev >= 0)
+		old = READ_ONCE(rw->cnts);
+		if ((old & 0x1ffff) == 0 &&
+		    __atomic_cmpxchg_bool(&rw->cnts, old, old | 0x10000))
+			/* Got the lock */
 			break;
+		barrier();
 	}
-}
-EXPORT_SYMBOL(_raw_write_lock_wait);
-
-#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
-
-void _raw_write_lock_wait(arch_rwlock_t *rw)
-{
-	int count = spin_retry;
-	int owner, old, prev;
 
-	prev = 0x80000000;
-	owner = 0;
-	while (1) {
-		if (count-- <= 0) {
-			if (owner && arch_vcpu_is_preempted(~owner))
-				smp_yield_cpu(~owner);
-			count = spin_retry;
-		}
-		old = ACCESS_ONCE(rw->lock);
-		owner = ACCESS_ONCE(rw->owner);
-		if (old >= 0 &&
-		    __atomic_cmpxchg_bool(&rw->lock, old, old | 0x80000000))
-			prev = old;
-		else
-			smp_mb();
-		if ((old & 0x7fffffff) == 0 && prev >= 0)
-			break;
-	}
+	arch_spin_unlock(&rw->wait);
 }
-EXPORT_SYMBOL(_raw_write_lock_wait);
-
-#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+EXPORT_SYMBOL(arch_write_lock_wait);
 
-int _raw_write_trylock_retry(arch_rwlock_t *rw)
+void arch_spin_relax(arch_spinlock_t *lp)
 {
-	int count = spin_retry;
-	int old;
+	int cpu;
 
-	while (count-- > 0) {
-		old = ACCESS_ONCE(rw->lock);
-		if (old)
-			continue;
-		if (__atomic_cmpxchg_bool(&rw->lock, 0, 0x80000000))
-			return 1;
-	}
-	return 0;
-}
-EXPORT_SYMBOL(_raw_write_trylock_retry);
-
-void arch_lock_relax(int cpu)
-{
+	cpu = READ_ONCE(lp->lock) & _Q_LOCK_CPU_MASK;
 	if (!cpu)
 		return;
-	if (MACHINE_IS_LPAR && !arch_vcpu_is_preempted(~cpu))
+	if (MACHINE_IS_LPAR && !arch_vcpu_is_preempted(cpu - 1))
 		return;
-	smp_yield_cpu(~cpu);
+	smp_yield_cpu(cpu - 1);
 }
-EXPORT_SYMBOL(arch_lock_relax);
+EXPORT_SYMBOL(arch_spin_relax);
diff --git a/arch/s390/lib/string.c b/arch/s390/lib/string.c
index 4ee27339c792..a10e11f7a5f7 100644
--- a/arch/s390/lib/string.c
+++ b/arch/s390/lib/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Optimized string functions
  *
@@ -55,7 +56,7 @@ EXPORT_SYMBOL(strlen);
  *
  * returns the minimum of the length of @s and @n
  */
-size_t strnlen(const char * s, size_t n)
+size_t strnlen(const char *s, size_t n)
 {
 	return __strnend(s, n) - s;
 }
@@ -194,14 +195,14 @@ EXPORT_SYMBOL(strncat);
 
 /**
  * strcmp - Compare two strings
- * @cs: One string
- * @ct: Another string
+ * @s1: One string
+ * @s2: Another string
  *
- * returns   0 if @cs and @ct are equal,
- *         < 0 if @cs is less than @ct
- *         > 0 if @cs is greater than @ct
+ * returns   0 if @s1 and @s2 are equal,
+ *	   < 0 if @s1 is less than @s2
+ *	   > 0 if @s1 is greater than @s2
  */
-int strcmp(const char *cs, const char *ct)
+int strcmp(const char *s1, const char *s2)
 {
 	register int r0 asm("0") = 0;
 	int ret = 0;
@@ -213,7 +214,7 @@ int strcmp(const char *cs, const char *ct)
 		      "   ic   %1,0(%3)\n"
 		      "   sr   %0,%1\n"
 		      "1:"
-		      : "+d" (ret), "+d" (r0), "+a" (cs), "+a" (ct)
+		      : "+d" (ret), "+d" (r0), "+a" (s1), "+a" (s2)
 		      : : "cc", "memory");
 	return ret;
 }
@@ -224,7 +225,7 @@ EXPORT_SYMBOL(strcmp);
  * @s: The string to be searched
  * @c: The character to search for
  */
-char * strrchr(const char * s, int c)
+char *strrchr(const char *s, int c)
 {
        size_t len = __strend(s) - s;
 
@@ -260,7 +261,7 @@ static inline int clcle(const char *s1, unsigned long l1,
  * @s1: The string to be searched
  * @s2: The string to search for
  */
-char * strstr(const char * s1,const char * s2)
+char *strstr(const char *s1, const char *s2)
 {
 	int l1, l2;
 
@@ -306,15 +307,15 @@ EXPORT_SYMBOL(memchr);
 
 /**
  * memcmp - Compare two areas of memory
- * @cs: One area of memory
- * @ct: Another area of memory
+ * @s1: One area of memory
+ * @s2: Another area of memory
  * @count: The size of the area.
  */
-int memcmp(const void *cs, const void *ct, size_t n)
+int memcmp(const void *s1, const void *s2, size_t n)
 {
 	int ret;
 
-	ret = clcle(cs, n, ct, n);
+	ret = clcle(s1, n, s2, n);
 	if (ret)
 		ret = ret == 1 ? -1 : 1;
 	return ret;
diff --git a/arch/s390/lib/uaccess.c b/arch/s390/lib/uaccess.c
index 4ea9106417ee..802903c50de1 100644
--- a/arch/s390/lib/uaccess.c
+++ b/arch/s390/lib/uaccess.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Standard user space access functions based on mvcp/mvcs and doing
  *  interesting things in the secondary space mode.
diff --git a/arch/s390/lib/xor.c b/arch/s390/lib/xor.c
index b4fd05c36151..96580590ccaf 100644
--- a/arch/s390/lib/xor.c
+++ b/arch/s390/lib/xor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Optimized xor_block operation for RAID4/5
  *
diff --git a/arch/s390/mm/Makefile b/arch/s390/mm/Makefile
index 0aa0ad165d8b..33fe418506bc 100644
--- a/arch/s390/mm/Makefile
+++ b/arch/s390/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux s390-specific parts of the memory manager.
 #
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index 829c63dbc81a..2dbdcd85b68f 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -56,7 +56,7 @@ static DEFINE_SPINLOCK(cmm_lock);
 
 static struct task_struct *cmm_thread_ptr;
 static DECLARE_WAIT_QUEUE_HEAD(cmm_thread_wait);
-static DEFINE_TIMER(cmm_timer, NULL, 0, 0);
+static DEFINE_TIMER(cmm_timer, NULL);
 
 static void cmm_timer_fn(unsigned long);
 static void cmm_set_timer(void);
diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c
index 049c3c455b32..507f23ba2034 100644
--- a/arch/s390/mm/dump_pagetables.c
+++ b/arch/s390/mm/dump_pagetables.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/seq_file.h>
 #include <linux/debugfs.h>
 #include <linux/sched.h>
diff --git a/arch/s390/mm/extmem.c b/arch/s390/mm/extmem.c
index 9f118629b55f..920d40894535 100644
--- a/arch/s390/mm/extmem.c
+++ b/arch/s390/mm/extmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Carsten Otte <cotte@de.ibm.com>
  * 		    Rob M van der Heij <rvdheij@nl.ibm.com>
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index bdabb013537b..242b78c0a9ec 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 8ecc25e760fa..05c8abd864f1 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Lockless get_user_pages_fast for s390
  *
@@ -56,13 +57,12 @@ static inline int gup_pte_range(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
 static inline int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
 		unsigned long end, int write, struct page **pages, int *nr)
 {
-	unsigned long mask, result;
 	struct page *head, *page;
+	unsigned long mask;
 	int refs;
 
-	result = write ? 0 : _SEGMENT_ENTRY_PROTECT;
-	mask = result | _SEGMENT_ENTRY_INVALID;
-	if ((pmd_val(pmd) & mask) != result)
+	mask = (write ? _SEGMENT_ENTRY_PROTECT : 0) | _SEGMENT_ENTRY_INVALID;
+	if ((pmd_val(pmd) & mask) != 0)
 		return 0;
 	VM_BUG_ON(!pfn_valid(pmd_val(pmd) >> PAGE_SHIFT));
 
diff --git a/arch/s390/mm/hugetlbpage.c b/arch/s390/mm/hugetlbpage.c
index 44a8e6f0391e..e804090f4470 100644
--- a/arch/s390/mm/hugetlbpage.c
+++ b/arch/s390/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  IBM System z Huge TLB Page Support for Kernel.
  *
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index 3b567838b905..817c9e16e83e 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  S390 version
  *    Copyright IBM Corp. 1999
@@ -144,8 +145,8 @@ void __init mem_init(void)
 
 void free_initmem(void)
 {
-	__set_memory((unsigned long) _sinittext,
-		     (_einittext - _sinittext) >> PAGE_SHIFT,
+	__set_memory((unsigned long)_sinittext,
+		     (unsigned long)(_einittext - _sinittext) >> PAGE_SHIFT,
 		     SET_MEMORY_RW | SET_MEMORY_NX);
 	free_initmem_default(POISON_FREE_INITMEM);
 }
diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c
index 792f9c63fbca..7be06475809b 100644
--- a/arch/s390/mm/maccess.c
+++ b/arch/s390/mm/maccess.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Access kernel memory without faulting -- s390 specific implementation.
  *
diff --git a/arch/s390/mm/mem_detect.c b/arch/s390/mm/mem_detect.c
index e58dca05b962..21f6c82c8296 100644
--- a/arch/s390/mm/mem_detect.c
+++ b/arch/s390/mm/mem_detect.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2008, 2009
  *
diff --git a/arch/s390/mm/page-states.c b/arch/s390/mm/page-states.c
index 07fa7b8ae233..382153ff17e3 100644
--- a/arch/s390/mm/page-states.c
+++ b/arch/s390/mm/page-states.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2008
  *
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 552f898dfa74..c44171588d08 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2011
  * Author(s): Jan Glauber <jang@linux.vnet.ibm.com>
diff --git a/arch/s390/mm/pgalloc.c b/arch/s390/mm/pgalloc.c
index 05f1f27e6708..4ad4c4f77b4d 100644
--- a/arch/s390/mm/pgalloc.c
+++ b/arch/s390/mm/pgalloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Page table allocation functions
  *
@@ -158,13 +159,13 @@ static inline unsigned int atomic_xor_bits(atomic_t *v, unsigned int bits)
 struct page *page_table_alloc_pgste(struct mm_struct *mm)
 {
 	struct page *page;
-	unsigned long *table;
+	u64 *table;
 
 	page = alloc_page(GFP_KERNEL);
 	if (page) {
-		table = (unsigned long *) page_to_phys(page);
-		clear_table(table, _PAGE_INVALID, PAGE_SIZE/2);
-		clear_table(table + PTRS_PER_PTE, 0, PAGE_SIZE/2);
+		table = (u64 *)page_to_phys(page);
+		memset64(table, _PAGE_INVALID, PTRS_PER_PTE);
+		memset64(table + PTRS_PER_PTE, 0, PTRS_PER_PTE);
 	}
 	return page;
 }
@@ -221,12 +222,12 @@ unsigned long *page_table_alloc(struct mm_struct *mm)
 	if (mm_alloc_pgste(mm)) {
 		/* Return 4K page table with PGSTEs */
 		atomic_set(&page->_mapcount, 3);
-		clear_table(table, _PAGE_INVALID, PAGE_SIZE/2);
-		clear_table(table + PTRS_PER_PTE, 0, PAGE_SIZE/2);
+		memset64((u64 *)table, _PAGE_INVALID, PTRS_PER_PTE);
+		memset64((u64 *)table + PTRS_PER_PTE, 0, PTRS_PER_PTE);
 	} else {
 		/* Return the first 2K fragment of the page */
 		atomic_set(&page->_mapcount, 1);
-		clear_table(table, _PAGE_INVALID, PAGE_SIZE);
+		memset64((u64 *)table, _PAGE_INVALID, 2 * PTRS_PER_PTE);
 		spin_lock_bh(&mm->context.lock);
 		list_add(&page->lru, &mm->context.pgtable_list);
 		spin_unlock_bh(&mm->context.lock);
diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c
index c0af0d7b6e5f..3316d463fc29 100644
--- a/arch/s390/mm/vmem.c
+++ b/arch/s390/mm/vmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2006
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
@@ -59,7 +60,7 @@ pte_t __ref *vmem_pte_alloc(void)
 		pte = (pte_t *) memblock_alloc(size, size);
 	if (!pte)
 		return NULL;
-	clear_table((unsigned long *) pte, _PAGE_INVALID, size);
+	memset64((u64 *)pte, _PAGE_INVALID, PTRS_PER_PTE);
 	return pte;
 }
 
@@ -402,17 +403,17 @@ void __init vmem_map_init(void)
 
 	for_each_memblock(memory, reg)
 		vmem_add_mem(reg->base, reg->size);
-	__set_memory((unsigned long) _stext,
-		     (_etext - _stext) >> PAGE_SHIFT,
+	__set_memory((unsigned long)_stext,
+		     (unsigned long)(_etext - _stext) >> PAGE_SHIFT,
 		     SET_MEMORY_RO | SET_MEMORY_X);
-	__set_memory((unsigned long) _etext,
-		     (_eshared - _etext) >> PAGE_SHIFT,
+	__set_memory((unsigned long)_etext,
+		     (unsigned long)(__end_rodata - _etext) >> PAGE_SHIFT,
 		     SET_MEMORY_RO);
-	__set_memory((unsigned long) _sinittext,
-		     (_einittext - _sinittext) >> PAGE_SHIFT,
+	__set_memory((unsigned long)_sinittext,
+		     (unsigned long)(_einittext - _sinittext) >> PAGE_SHIFT,
 		     SET_MEMORY_RO | SET_MEMORY_X);
 	pr_info("Write protected kernel read-only data: %luk\n",
-		(_eshared - _stext) >> 10);
+		(unsigned long)(__end_rodata - _stext) >> 10);
 }
 
 /*
diff --git a/arch/s390/net/bpf_jit.S b/arch/s390/net/bpf_jit.S
index a1c917d881ec..25bb4643c4f4 100644
--- a/arch/s390/net/bpf_jit.S
+++ b/arch/s390/net/bpf_jit.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * BPF Jit compiler for s390, help functions.
  *
diff --git a/arch/s390/net/bpf_jit.h b/arch/s390/net/bpf_jit.h
index fda605dbc1b4..5e1e5133132d 100644
--- a/arch/s390/net/bpf_jit.h
+++ b/arch/s390/net/bpf_jit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * BPF Jit compiler defines
  *
@@ -52,10 +53,13 @@ extern u8 sk_load_word[], sk_load_half[], sk_load_byte[];
  *
  * We get 160 bytes stack space from calling function, but only use
  * 12 * 8 byte for old backchain, r15..r6, and tail_call_cnt.
+ *
+ * The stack size used by the BPF program ("BPF stack" above) is passed
+ * via "aux->stack_depth".
  */
-#define STK_SPACE	(MAX_BPF_STACK + 8 + 8 + 4 + 4 + 160)
+#define STK_SPACE_ADD (8 + 8 + 4 + 4 + 160)
 #define STK_160_UNUSED	(160 - 12 * 8)
-#define STK_OFF		(STK_SPACE - STK_160_UNUSED)
+#define STK_OFF		(STK_SPACE_ADD - STK_160_UNUSED)
 #define STK_OFF_TMP	160	/* Offset of tmp buffer on stack */
 #define STK_OFF_HLEN	168	/* Offset of SKB header length on stack */
 #define STK_OFF_SKBP	176	/* Offset of SKB pointer on stack */
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 8ec88497a28d..e81c16838b90 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * BPF Jit compiler for s390.
  *
@@ -319,12 +320,12 @@ static void save_regs(struct bpf_jit *jit, u32 rs, u32 re)
 /*
  * Restore registers from "rs" (register start) to "re" (register end) on stack
  */
-static void restore_regs(struct bpf_jit *jit, u32 rs, u32 re)
+static void restore_regs(struct bpf_jit *jit, u32 rs, u32 re, u32 stack_depth)
 {
 	u32 off = STK_OFF_R6 + (rs - 6) * 8;
 
 	if (jit->seen & SEEN_STACK)
-		off += STK_OFF;
+		off += STK_OFF + stack_depth;
 
 	if (rs == re)
 		/* lg %rs,off(%r15) */
@@ -368,7 +369,7 @@ static int get_end(struct bpf_jit *jit, int start)
  * Save and restore clobbered registers (6-15) on stack.
  * We save/restore registers in chunks with gap >= 2 registers.
  */
-static void save_restore_regs(struct bpf_jit *jit, int op)
+static void save_restore_regs(struct bpf_jit *jit, int op, u32 stack_depth)
 {
 
 	int re = 6, rs;
@@ -381,7 +382,7 @@ static void save_restore_regs(struct bpf_jit *jit, int op)
 		if (op == REGS_SAVE)
 			save_regs(jit, rs, re);
 		else
-			restore_regs(jit, rs, re);
+			restore_regs(jit, rs, re, stack_depth);
 		re++;
 	} while (re <= 15);
 }
@@ -413,7 +414,7 @@ static void emit_load_skb_data_hlen(struct bpf_jit *jit)
  * Save registers and create stack frame if necessary.
  * See stack frame layout desription in "bpf_jit.h"!
  */
-static void bpf_jit_prologue(struct bpf_jit *jit)
+static void bpf_jit_prologue(struct bpf_jit *jit, u32 stack_depth)
 {
 	if (jit->seen & SEEN_TAIL_CALL) {
 		/* xc STK_OFF_TCCNT(4,%r15),STK_OFF_TCCNT(%r15) */
@@ -426,7 +427,7 @@ static void bpf_jit_prologue(struct bpf_jit *jit)
 	/* Tail calls have to skip above initialization */
 	jit->tail_call_start = jit->prg;
 	/* Save registers */
-	save_restore_regs(jit, REGS_SAVE);
+	save_restore_regs(jit, REGS_SAVE, stack_depth);
 	/* Setup literal pool */
 	if (jit->seen & SEEN_LITERAL) {
 		/* basr %r13,0 */
@@ -441,7 +442,7 @@ static void bpf_jit_prologue(struct bpf_jit *jit)
 		/* la %bfp,STK_160_UNUSED(%r15) (BPF frame pointer) */
 		EMIT4_DISP(0x41000000, BPF_REG_FP, REG_15, STK_160_UNUSED);
 		/* aghi %r15,-STK_OFF */
-		EMIT4_IMM(0xa70b0000, REG_15, -STK_OFF);
+		EMIT4_IMM(0xa70b0000, REG_15, -(STK_OFF + stack_depth));
 		if (jit->seen & SEEN_FUNC)
 			/* stg %w1,152(%r15) (backchain) */
 			EMIT6_DISP_LH(0xe3000000, 0x0024, REG_W1, REG_0,
@@ -458,7 +459,7 @@ static void bpf_jit_prologue(struct bpf_jit *jit)
 /*
  * Function epilogue
  */
-static void bpf_jit_epilogue(struct bpf_jit *jit)
+static void bpf_jit_epilogue(struct bpf_jit *jit, u32 stack_depth)
 {
 	/* Return 0 */
 	if (jit->seen & SEEN_RET0) {
@@ -470,7 +471,7 @@ static void bpf_jit_epilogue(struct bpf_jit *jit)
 	/* Load exit code: lgr %r2,%b0 */
 	EMIT4(0xb9040000, REG_2, BPF_REG_0);
 	/* Restore registers */
-	save_restore_regs(jit, REGS_RESTORE);
+	save_restore_regs(jit, REGS_RESTORE, stack_depth);
 	/* br %r14 */
 	_EMIT2(0x07fe);
 }
@@ -1018,7 +1019,7 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
 		 */
 
 		if (jit->seen & SEEN_STACK)
-			off = STK_OFF_TCCNT + STK_OFF;
+			off = STK_OFF_TCCNT + STK_OFF + fp->aux->stack_depth;
 		else
 			off = STK_OFF_TCCNT;
 		/* lhi %w0,1 */
@@ -1046,7 +1047,7 @@ static noinline int bpf_jit_insn(struct bpf_jit *jit, struct bpf_prog *fp, int i
 		/*
 		 * Restore registers before calling function
 		 */
-		save_restore_regs(jit, REGS_RESTORE);
+		save_restore_regs(jit, REGS_RESTORE, fp->aux->stack_depth);
 
 		/*
 		 * goto *(prog->bpf_func + tail_call_start);
@@ -1272,7 +1273,7 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
 	jit->lit = jit->lit_start;
 	jit->prg = 0;
 
-	bpf_jit_prologue(jit);
+	bpf_jit_prologue(jit, fp->aux->stack_depth);
 	for (i = 0; i < fp->len; i += insn_count) {
 		insn_count = bpf_jit_insn(jit, fp, i);
 		if (insn_count < 0)
@@ -1280,7 +1281,7 @@ static int bpf_jit_prog(struct bpf_jit *jit, struct bpf_prog *fp)
 		/* Next instruction address */
 		jit->addrs[i + insn_count] = jit->prg;
 	}
-	bpf_jit_epilogue(jit);
+	bpf_jit_epilogue(jit, fp->aux->stack_depth);
 
 	jit->lit_start = jit->prg;
 	jit->size = jit->lit;
diff --git a/arch/s390/numa/mode_emu.c b/arch/s390/numa/mode_emu.c
index cfd08384f0ab..83b222c57609 100644
--- a/arch/s390/numa/mode_emu.c
+++ b/arch/s390/numa/mode_emu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/numa/numa.c b/arch/s390/numa/numa.c
index f576f1073378..06a80434cfe6 100644
--- a/arch/s390/numa/numa.c
+++ b/arch/s390/numa/numa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/numa/numa_mode.h b/arch/s390/numa/numa_mode.h
index 08953b0b1c7f..dfd3e2784081 100644
--- a/arch/s390/numa/numa_mode.h
+++ b/arch/s390/numa/numa_mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/numa/toptree.c b/arch/s390/numa/toptree.c
index 26f622b1cd11..21d1e8a1546d 100644
--- a/arch/s390/numa/toptree.c
+++ b/arch/s390/numa/toptree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/numa/toptree.h b/arch/s390/numa/toptree.h
index bdf502027af4..5246371ec713 100644
--- a/arch/s390/numa/toptree.h
+++ b/arch/s390/numa/toptree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NUMA support for s390
  *
diff --git a/arch/s390/oprofile/Makefile b/arch/s390/oprofile/Makefile
index e9dd41b0b8d3..36261f9d360b 100644
--- a/arch/s390/oprofile/Makefile
+++ b/arch/s390/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 9a4de4599c7b..43d9525c36fc 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * S390 Version
  *   Copyright IBM Corp. 2002, 2011
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index a25d95a6612d..0fe649c0d542 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -368,7 +368,8 @@ static void zpci_irq_handler(struct airq_struct *airq)
 				/* End of second scan with interrupts on. */
 				break;
 			/* First scan complete, reenable interrupts. */
-			zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC);
+			if (zpci_set_irq_ctrl(SIC_IRQ_MODE_SINGLE, NULL, PCI_ISC))
+				break;
 			si = 0;
 			continue;
 		}
@@ -956,7 +957,7 @@ static int __init pci_base_init(void)
 	if (!s390_pci_probe)
 		return 0;
 
-	if (!test_facility(69) || !test_facility(71) || !test_facility(72))
+	if (!test_facility(69) || !test_facility(71))
 		return 0;
 
 	rc = zpci_debug_init();
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 0ae3936e266f..93cd0f1ca12b 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2012
  *
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index 0bbc04af4418..8d6ee4af4230 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright IBM Corp. 2012
  *
diff --git a/arch/s390/pci/pci_insn.c b/arch/s390/pci/pci_insn.c
index ea34086c8674..81b840bc6e4e 100644
--- a/arch/s390/pci/pci_insn.c
+++ b/arch/s390/pci/pci_insn.c
@@ -7,6 +7,7 @@
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/delay.h>
+#include <asm/facility.h>
 #include <asm/pci_insn.h>
 #include <asm/pci_debug.h>
 #include <asm/processor.h>
@@ -91,11 +92,14 @@ int zpci_refresh_trans(u64 fn, u64 addr, u64 range)
 }
 
 /* Set Interruption Controls */
-void zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc)
+int zpci_set_irq_ctrl(u16 ctl, char *unused, u8 isc)
 {
+	if (!test_facility(72))
+		return -EIO;
 	asm volatile (
 		"	.insn	rsy,0xeb00000000d1,%[ctl],%[isc],%[u]\n"
 		: : [ctl] "d" (ctl), [isc] "d" (isc << 27), [u] "Q" (*unused));
+	return 0;
 }
 
 /* PCI Load */
diff --git a/arch/s390/pci/pci_mmio.c b/arch/s390/pci/pci_mmio.c
index b1bb2b72302c..7d42a8794f10 100644
--- a/arch/s390/pci/pci_mmio.c
+++ b/arch/s390/pci/pci_mmio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Access to PCI I/O memory from user space programs.
  *
diff --git a/arch/s390/pci/pci_sysfs.c b/arch/s390/pci/pci_sysfs.c
index ed484dc84d14..430c14b006d1 100644
--- a/arch/s390/pci/pci_sysfs.c
+++ b/arch/s390/pci/pci_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2012
  *
diff --git a/arch/s390/tools/Makefile b/arch/s390/tools/Makefile
index 4b5e1e499527..2ebf2872cc16 100644
--- a/arch/s390/tools/Makefile
+++ b/arch/s390/tools/Makefile
@@ -1,13 +1,24 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for s390 specific build tools
 #
 
 hostprogs-y		    += gen_facilities
+hostprogs-y		    += gen_opcode_table
+
 HOSTCFLAGS_gen_facilities.o += -Wall $(LINUXINCLUDE)
+HOSTCFLAGS_gen_opcode_table.o += -Wall $(LINUXINCLUDE)
 
 define filechk_facilities.h
 	$(obj)/gen_facilities
 endef
 
+define filechk_dis.h
+	( $(obj)/gen_opcode_table < $(srctree)/arch/$(ARCH)/tools/opcodes.txt )
+endef
+
 include/generated/facilities.h: $(obj)/gen_facilities FORCE
 	$(call filechk,facilities.h)
+
+include/generated/dis.h: $(obj)/gen_opcode_table FORCE
+	$(call filechk,dis.h,__FUN)
diff --git a/arch/s390/tools/gen_facilities.c b/arch/s390/tools/gen_facilities.c
index 70dd8f17d054..0373801d9860 100644
--- a/arch/s390/tools/gen_facilities.c
+++ b/arch/s390/tools/gen_facilities.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simple program to generate defines out of facility lists that use the bit
  * numbering scheme from the Princples of Operations: most significant bit
diff --git a/arch/s390/tools/gen_opcode_table.c b/arch/s390/tools/gen_opcode_table.c
new file mode 100644
index 000000000000..01d4c5a4bfe9
--- /dev/null
+++ b/arch/s390/tools/gen_opcode_table.c
@@ -0,0 +1,336 @@
+/*
+ * Generate opcode table initializers for the in-kernel disassembler.
+ *
+ *    Copyright IBM Corp. 2017
+ *
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <stdio.h>
+
+#define STRING_SIZE_MAX 20
+
+struct insn_type {
+	unsigned char byte;
+	unsigned char mask;
+	char **format;
+};
+
+struct insn {
+	struct insn_type *type;
+	char opcode[STRING_SIZE_MAX];
+	char name[STRING_SIZE_MAX];
+	char upper[STRING_SIZE_MAX];
+	char format[STRING_SIZE_MAX];
+	unsigned int name_len;
+};
+
+struct insn_group {
+	struct insn_type *type;
+	int offset;
+	int count;
+	char opcode[2];
+};
+
+struct insn_format {
+	char *format;
+	int type;
+};
+
+struct gen_opcode {
+	struct insn *insn;
+	int nr;
+	struct insn_group *group;
+	int nr_groups;
+};
+
+/*
+ * Table of instruction format types. Each opcode is defined with at
+ * least one byte (two nibbles), three nibbles, or two bytes (four
+ * nibbles).
+ * The byte member of each instruction format type entry defines
+ * within which byte of an instruction the third (and fourth) nibble
+ * of an opcode can be found. The mask member is the and-mask that
+ * needs to be applied on this byte in order to get the third (and
+ * fourth) nibble of the opcode.
+ * The format array defines all instruction formats (as defined in the
+ * Principles of Operation) which have the same position of the opcode
+ * nibbles.
+ * A special case are instruction formats with 1-byte opcodes. In this
+ * case the byte member always is zero, so that the mask is applied on
+ * the (only) byte that contains the opcode.
+ */
+static struct insn_type insn_type_table[] = {
+	{
+		.byte = 0,
+		.mask = 0xff,
+		.format = (char *[]) {
+			"MII",
+			"RR",
+			"RS",
+			"RSI",
+			"RX",
+			"SI",
+			"SMI",
+			"SS",
+			NULL,
+		},
+	},
+	{
+		.byte = 1,
+		.mask = 0x0f,
+		.format = (char *[]) {
+			"RI",
+			"RIL",
+			"SSF",
+			NULL,
+		},
+	},
+	{
+		.byte = 1,
+		.mask = 0xff,
+		.format = (char *[]) {
+			"E",
+			"IE",
+			"RRE",
+			"RRF",
+			"RRR",
+			"S",
+			"SIL",
+			"SSE",
+			NULL,
+		},
+	},
+	{
+		.byte = 5,
+		.mask = 0xff,
+		.format = (char *[]) {
+			"RIE",
+			"RIS",
+			"RRS",
+			"RSE",
+			"RSL",
+			"RSY",
+			"RXE",
+			"RXF",
+			"RXY",
+			"SIY",
+			"VRI",
+			"VRR",
+			"VRS",
+			"VRV",
+			"VRX",
+			"VSI",
+			NULL,
+		},
+	},
+};
+
+static struct insn_type *insn_format_to_type(char *format)
+{
+	char tmp[STRING_SIZE_MAX];
+	char *base_format, **ptr;
+	int i;
+
+	strcpy(tmp, format);
+	base_format = tmp;
+	base_format = strsep(&base_format, "_");
+	for (i = 0; i < sizeof(insn_type_table) / sizeof(insn_type_table[0]); i++) {
+		ptr = insn_type_table[i].format;
+		while (*ptr) {
+			if (!strcmp(base_format, *ptr))
+				return &insn_type_table[i];
+			ptr++;
+		}
+	}
+	exit(EXIT_FAILURE);
+}
+
+static void read_instructions(struct gen_opcode *desc)
+{
+	struct insn insn;
+	int rc, i;
+
+	while (1) {
+		rc = scanf("%s %s %s", insn.opcode, insn.name, insn.format);
+		if (rc == EOF)
+			break;
+		if (rc != 3)
+			exit(EXIT_FAILURE);
+		insn.type = insn_format_to_type(insn.format);
+		insn.name_len = strlen(insn.name);
+		for (i = 0; i <= insn.name_len; i++)
+			insn.upper[i] = toupper((unsigned char)insn.name[i]);
+		desc->nr++;
+		desc->insn = realloc(desc->insn, desc->nr * sizeof(*desc->insn));
+		if (!desc->insn)
+			exit(EXIT_FAILURE);
+		desc->insn[desc->nr - 1] = insn;
+	}
+}
+
+static int cmpformat(const void *a, const void *b)
+{
+	return strcmp(((struct insn *)a)->format, ((struct insn *)b)->format);
+}
+
+static void print_formats(struct gen_opcode *desc)
+{
+	char *format;
+	int i, count;
+
+	qsort(desc->insn, desc->nr, sizeof(*desc->insn), cmpformat);
+	format = "";
+	count = 0;
+	printf("enum {\n");
+	for (i = 0; i < desc->nr; i++) {
+		if (!strcmp(format, desc->insn[i].format))
+			continue;
+		count++;
+		format = desc->insn[i].format;
+		printf("\tINSTR_%s,\n", format);
+	}
+	printf("}; /* %d */\n\n", count);
+}
+
+static int cmp_long_insn(const void *a, const void *b)
+{
+	return strcmp(((struct insn *)a)->name, ((struct insn *)b)->name);
+}
+
+static void print_long_insn(struct gen_opcode *desc)
+{
+	struct insn *insn;
+	int i, count;
+
+	qsort(desc->insn, desc->nr, sizeof(*desc->insn), cmp_long_insn);
+	count = 0;
+	printf("enum {\n");
+	for (i = 0; i < desc->nr; i++) {
+		insn = &desc->insn[i];
+		if (insn->name_len < 6)
+			continue;
+		printf("\tLONG_INSN_%s,\n", insn->upper);
+		count++;
+	}
+	printf("}; /* %d */\n\n", count);
+
+	printf("#define LONG_INSN_INITIALIZER { \\\n");
+	for (i = 0; i < desc->nr; i++) {
+		insn = &desc->insn[i];
+		if (insn->name_len < 6)
+			continue;
+		printf("\t[LONG_INSN_%s] = \"%s\", \\\n", insn->upper, insn->name);
+	}
+	printf("}\n\n");
+}
+
+static void print_opcode(struct insn *insn, int nr)
+{
+	char *opcode;
+
+	opcode = insn->opcode;
+	if (insn->type->byte != 0)
+		opcode += 2;
+	printf("\t[%4d] = { .opfrag = 0x%s, .format = INSTR_%s, ", nr, opcode, insn->format);
+	if (insn->name_len < 6)
+		printf(".name = \"%s\" ", insn->name);
+	else
+		printf(".offset = LONG_INSN_%s ", insn->upper);
+	printf("}, \\\n");
+}
+
+static void add_to_group(struct gen_opcode *desc, struct insn *insn, int offset)
+{
+	struct insn_group *group;
+
+	group = desc->group ? &desc->group[desc->nr_groups - 1] : NULL;
+	if (group && (!strncmp(group->opcode, insn->opcode, 2) || group->type->byte == 0)) {
+		group->count++;
+		return;
+	}
+	desc->nr_groups++;
+	desc->group = realloc(desc->group, desc->nr_groups * sizeof(*desc->group));
+	if (!desc->group)
+		exit(EXIT_FAILURE);
+	group = &desc->group[desc->nr_groups - 1];
+	strncpy(group->opcode, insn->opcode, 2);
+	group->type = insn->type;
+	group->offset = offset;
+	group->count = 1;
+}
+
+static int cmpopcode(const void *a, const void *b)
+{
+	return strcmp(((struct insn *)a)->opcode, ((struct insn *)b)->opcode);
+}
+
+static void print_opcode_table(struct gen_opcode *desc)
+{
+	char opcode[2] = "";
+	struct insn *insn;
+	int i, offset;
+
+	qsort(desc->insn, desc->nr, sizeof(*desc->insn), cmpopcode);
+	printf("#define OPCODE_TABLE_INITIALIZER { \\\n");
+	offset = 0;
+	for (i = 0; i < desc->nr; i++) {
+		insn = &desc->insn[i];
+		if (insn->type->byte == 0)
+			continue;
+		add_to_group(desc, insn, offset);
+		if (strncmp(opcode, insn->opcode, 2)) {
+			strncpy(opcode, insn->opcode, 2);
+			printf("\t/* %.2s */ \\\n", opcode);
+		}
+		print_opcode(insn, offset);
+		offset++;
+	}
+	printf("\t/* 1-byte opcode instructions */ \\\n");
+	for (i = 0; i < desc->nr; i++) {
+		insn = &desc->insn[i];
+		if (insn->type->byte != 0)
+			continue;
+		add_to_group(desc, insn, offset);
+		print_opcode(insn, offset);
+		offset++;
+	}
+	printf("}\n\n");
+}
+
+static void print_opcode_table_offsets(struct gen_opcode *desc)
+{
+	struct insn_group *group;
+	int i;
+
+	printf("#define OPCODE_OFFSET_INITIALIZER { \\\n");
+	for (i = 0; i < desc->nr_groups; i++) {
+		group = &desc->group[i];
+		printf("\t{ .opcode = 0x%.2s, .mask = 0x%02x, .byte = %d, .offset = %d, .count = %d }, \\\n",
+		       group->opcode, group->type->mask, group->type->byte, group->offset, group->count);
+	}
+	printf("}\n\n");
+}
+
+int main(int argc, char **argv)
+{
+	struct gen_opcode _desc = { 0 };
+	struct gen_opcode *desc = &_desc;
+
+	read_instructions(desc);
+	printf("#ifndef __S390_GENERATED_DIS_H__\n");
+	printf("#define __S390_GENERATED_DIS_H__\n");
+	printf("/*\n");
+	printf(" * DO NOT MODIFY.\n");
+	printf(" *\n");
+	printf(" * This file was generated by %s\n", __FILE__);
+	printf(" */\n\n");
+	print_formats(desc);
+	print_long_insn(desc);
+	print_opcode_table(desc);
+	print_opcode_table_offsets(desc);
+	printf("#endif\n");
+	exit(EXIT_SUCCESS);
+}
diff --git a/arch/s390/tools/opcodes.txt b/arch/s390/tools/opcodes.txt
new file mode 100644
index 000000000000..1cbed82cd17b
--- /dev/null
+++ b/arch/s390/tools/opcodes.txt
@@ -0,0 +1,1183 @@
+0101	pr	E
+0102	upt	E
+0104	ptff	E
+0107	sckpf	E
+010a	pfpo	E
+010b	tam	E
+010c	sam24	E
+010d	sam31	E
+010e	sam64	E
+01ff	trap2	E
+04	spm	RR_R0
+05	balr	RR_RR
+06	bctr	RR_RR
+07	bcr	RR_UR
+0a	svc	RR_U0
+0b	bsm	RR_RR
+0c	bassm	RR_RR
+0d	basr	RR_RR
+0e	mvcl	RR_RR
+0f	clcl	RR_RR
+10	lpr	RR_RR
+11	lnr	RR_RR
+12	ltr	RR_RR
+13	lcr	RR_RR
+14	nr	RR_RR
+15	clr	RR_RR
+16	or	RR_RR
+17	xr	RR_RR
+18	lr	RR_RR
+19	cr	RR_RR
+1a	ar	RR_RR
+1b	sr	RR_RR
+1c	mr	RR_RR
+1d	dr	RR_RR
+1e	alr	RR_RR
+1f	slr	RR_RR
+20	lpdr	RR_FF
+21	lndr	RR_FF
+22	ltdr	RR_FF
+23	lcdr	RR_FF
+24	hdr	RR_FF
+25	ldxr	RR_FF
+26	mxr	RR_FF
+27	mxdr	RR_FF
+28	ldr	RR_FF
+29	cdr	RR_FF
+2a	adr	RR_FF
+2b	sdr	RR_FF
+2c	mdr	RR_FF
+2d	ddr	RR_FF
+2e	awr	RR_FF
+2f	swr	RR_FF
+30	lper	RR_FF
+31	lner	RR_FF
+32	lter	RR_FF
+33	lcer	RR_FF
+34	her	RR_FF
+35	ledr	RR_FF
+36	axr	RR_FF
+37	sxr	RR_FF
+38	ler	RR_FF
+39	cer	RR_FF
+3a	aer	RR_FF
+3b	ser	RR_FF
+3c	mder	RR_FF
+3d	der	RR_FF
+3e	aur	RR_FF
+3f	sur	RR_FF
+40	sth	RX_RRRD
+41	la	RX_RRRD
+42	stc	RX_RRRD
+43	ic	RX_RRRD
+44	ex	RX_RRRD
+45	bal	RX_RRRD
+46	bct	RX_RRRD
+47	bc	RX_URRD
+48	lh	RX_RRRD
+49	ch	RX_RRRD
+4a	ah	RX_RRRD
+4b	sh	RX_RRRD
+4c	mh	RX_RRRD
+4d	bas	RX_RRRD
+4e	cvd	RX_RRRD
+4f	cvb	RX_RRRD
+50	st	RX_RRRD
+51	lae	RX_RRRD
+54	n	RX_RRRD
+55	cl	RX_RRRD
+56	o	RX_RRRD
+57	x	RX_RRRD
+58	l	RX_RRRD
+59	c	RX_RRRD
+5a	a	RX_RRRD
+5b	s	RX_RRRD
+5c	m	RX_RRRD
+5d	d	RX_RRRD
+5e	al	RX_RRRD
+5f	sl	RX_RRRD
+60	std	RX_FRRD
+67	mxd	RX_FRRD
+68	ld	RX_FRRD
+69	cd	RX_FRRD
+6a	ad	RX_FRRD
+6b	sd	RX_FRRD
+6c	md	RX_FRRD
+6d	dd	RX_FRRD
+6e	aw	RX_FRRD
+6f	sw	RX_FRRD
+70	ste	RX_FRRD
+71	ms	RX_RRRD
+78	le	RX_FRRD
+79	ce	RX_FRRD
+7a	ae	RX_FRRD
+7b	se	RX_FRRD
+7c	mde	RX_FRRD
+7d	de	RX_FRRD
+7e	au	RX_FRRD
+7f	su	RX_FRRD
+80	ssm	SI_RD
+82	lpsw	SI_RD
+83	diag	RS_RRRD
+84	brxh	RSI_RRP
+85	brxle	RSI_RRP
+86	bxh	RS_RRRD
+87	bxle	RS_RRRD
+88	srl	RS_R0RD
+89	sll	RS_R0RD
+8a	sra	RS_R0RD
+8b	sla	RS_R0RD
+8c	srdl	RS_R0RD
+8d	sldl	RS_R0RD
+8e	srda	RS_R0RD
+8f	slda	RS_R0RD
+90	stm	RS_RRRD
+91	tm	SI_URD
+92	mvi	SI_URD
+93	ts	SI_RD
+94	ni	SI_URD
+95	cli	SI_URD
+96	oi	SI_URD
+97	xi	SI_URD
+98	lm	RS_RRRD
+99	trace	RS_RRRD
+9a	lam	RS_AARD
+9b	stam	RS_AARD
+a50	iihh	RI_RU
+a51	iihl	RI_RU
+a52	iilh	RI_RU
+a53	iill	RI_RU
+a54	nihh	RI_RU
+a55	nihl	RI_RU
+a56	nilh	RI_RU
+a57	nill	RI_RU
+a58	oihh	RI_RU
+a59	oihl	RI_RU
+a5a	oilh	RI_RU
+a5b	oill	RI_RU
+a5c	llihh	RI_RU
+a5d	llihl	RI_RU
+a5e	llilh	RI_RU
+a5f	llill	RI_RU
+a70	tmlh	RI_RU
+a71	tmll	RI_RU
+a72	tmhh	RI_RU
+a73	tmhl	RI_RU
+a74	brc	RI_UP
+a75	bras	RI_RP
+a76	brct	RI_RP
+a77	brctg	RI_RP
+a78	lhi	RI_RI
+a79	lghi	RI_RI
+a7a	ahi	RI_RI
+a7b	aghi	RI_RI
+a7c	mhi	RI_RI
+a7d	mghi	RI_RI
+a7e	chi	RI_RI
+a7f	cghi	RI_RI
+a8	mvcle	RS_RRRD
+a9	clcle	RS_RRRD
+aa0	rinext	RI_RI
+aa1	rion	RI_RI
+aa2	tric	RI_RI
+aa3	rioff	RI_RI
+aa4	riemit	RI_RI
+ac	stnsm	SI_URD
+ad	stosm	SI_URD
+ae	sigp	RS_RRRD
+af	mc	SI_URD
+b1	lra	RX_RRRD
+b202	stidp	S_RD
+b204	sck	S_RD
+b205	stck	S_RD
+b206	sckc	S_RD
+b207	stckc	S_RD
+b208	spt	S_RD
+b209	stpt	S_RD
+b20a	spka	S_RD
+b20b	ipk	S_00
+b20d	ptlb	S_00
+b210	spx	S_RD
+b211	stpx	S_RD
+b212	stap	S_RD
+b214	sie	S_RD
+b218	pc	S_RD
+b219	sac	S_RD
+b21a	cfc	S_RD
+b220	servc	RRE_RR
+b221	ipte	RRF_RURR
+b222	ipm	RRE_R0
+b223	ivsk	RRE_RR
+b224	iac	RRE_R0
+b225	ssar	RRE_R0
+b226	epar	RRE_R0
+b227	esar	RRE_R0
+b228	pt	RRE_RR
+b229	iske	RRE_RR
+b22a	rrbe	RRE_RR
+b22b	sske	RRF_U0RR
+b22c	tb	RRE_RR
+b22d	dxr	RRE_FF
+b22e	pgin	RRE_RR
+b22f	pgout	RRE_RR
+b230	csch	S_00
+b231	hsch	S_00
+b232	msch	S_RD
+b233	ssch	S_RD
+b234	stsch	S_RD
+b235	tsch	S_RD
+b236	tpi	S_RD
+b237	sal	S_00
+b238	rsch	S_00
+b239	stcrw	S_RD
+b23a	stcps	S_RD
+b23b	rchp	S_00
+b23c	schm	S_00
+b240	bakr	RRE_RR
+b241	cksm	RRE_RR
+b244	sqdr	RRE_FF
+b245	sqer	RRE_FF
+b246	stura	RRE_RR
+b247	msta	RRE_R0
+b248	palb	RRE_00
+b249	ereg	RRE_RR
+b24a	esta	RRE_RR
+b24b	lura	RRE_RR
+b24c	tar	RRE_AR
+b24d	cpya	RRE_AA
+b24e	sar	RRE_AR
+b24f	ear	RRE_RA
+b250	csp	RRE_RR
+b252	msr	RRE_RR
+b254	mvpg	RRE_RR
+b255	mvst	RRE_RR
+b256	sthyi	RRE_RR
+b257	cuse	RRE_RR
+b258	bsg	RRE_RR
+b25a	bsa	RRE_RR
+b25d	clst	RRE_RR
+b25e	srst	RRE_RR
+b263	cmpsc	RRE_RR
+b274	siga	S_RD
+b276	xsch	S_00
+b277	rp	S_RD
+b278	stcke	S_RD
+b279	sacf	S_RD
+b27c	stckf	S_RD
+b27d	stsi	S_RD
+b280	lpp	S_RD
+b284	lcctl	S_RD
+b285	lpctl	S_RD
+b286	qsi	S_RD
+b287	lsctl	S_RD
+b28e	qctri	S_RD
+b299	srnm	S_RD
+b29c	stfpc	S_RD
+b29d	lfpc	S_RD
+b2a5	tre	RRE_RR
+b2a6	cu21	RRF_U0RR
+b2a7	cu12	RRF_U0RR
+b2b0	stfle	S_RD
+b2b1	stfl	S_RD
+b2b2	lpswe	S_RD
+b2b8	srnmb	S_RD
+b2b9	srnmt	S_RD
+b2bd	lfas	S_RD
+b2e0	scctr	RRE_RR
+b2e1	spctr	RRE_RR
+b2e4	ecctr	RRE_RR
+b2e5	epctr	RRE_RR
+b2e8	ppa	RRF_U0RR
+b2ec	etnd	RRE_R0
+b2ed	ecpga	RRE_RR
+b2f8	tend	S_00
+b2fa	niai	IE_UU
+b2fc	tabort	S_RD
+b2ff	trap4	S_RD
+b300	lpebr	RRE_FF
+b301	lnebr	RRE_FF
+b302	ltebr	RRE_FF
+b303	lcebr	RRE_FF
+b304	ldebr	RRE_FF
+b305	lxdbr	RRE_FF
+b306	lxebr	RRE_FF
+b307	mxdbr	RRE_FF
+b308	kebr	RRE_FF
+b309	cebr	RRE_FF
+b30a	aebr	RRE_FF
+b30b	sebr	RRE_FF
+b30c	mdebr	RRE_FF
+b30d	debr	RRE_FF
+b30e	maebr	RRF_F0FF
+b30f	msebr	RRF_F0FF
+b310	lpdbr	RRE_FF
+b311	lndbr	RRE_FF
+b312	ltdbr	RRE_FF
+b313	lcdbr	RRE_FF
+b314	sqebr	RRE_FF
+b315	sqdbr	RRE_FF
+b316	sqxbr	RRE_FF
+b317	meebr	RRE_FF
+b318	kdbr	RRE_FF
+b319	cdbr	RRE_FF
+b31a	adbr	RRE_FF
+b31b	sdbr	RRE_FF
+b31c	mdbr	RRE_FF
+b31d	ddbr	RRE_FF
+b31e	madbr	RRF_F0FF
+b31f	msdbr	RRF_F0FF
+b324	lder	RRE_FF
+b325	lxdr	RRE_FF
+b326	lxer	RRE_FF
+b32e	maer	RRF_F0FF
+b32f	mser	RRF_F0FF
+b336	sqxr	RRE_FF
+b337	meer	RRE_FF
+b338	maylr	RRF_F0FF
+b339	mylr	RRF_F0FF
+b33a	mayr	RRF_F0FF
+b33b	myr	RRF_F0FF
+b33c	mayhr	RRF_F0FF
+b33d	myhr	RRF_F0FF
+b33e	madr	RRF_F0FF
+b33f	msdr	RRF_F0FF
+b340	lpxbr	RRE_FF
+b341	lnxbr	RRE_FF
+b342	ltxbr	RRE_FF
+b343	lcxbr	RRE_FF
+b344	ledbra	RRF_UUFF
+b345	ldxbra	RRF_UUFF
+b346	lexbra	RRF_UUFF
+b347	fixbra	RRF_UUFF
+b348	kxbr	RRE_FF
+b349	cxbr	RRE_FF
+b34a	axbr	RRE_FF
+b34b	sxbr	RRE_FF
+b34c	mxbr	RRE_FF
+b34d	dxbr	RRE_FF
+b350	tbedr	RRF_U0FF
+b351	tbdr	RRF_U0FF
+b353	diebr	RRF_FUFF
+b357	fiebra	RRF_UUFF
+b358	thder	RRE_FF
+b359	thdr	RRE_FF
+b35b	didbr	RRF_FUFF
+b35f	fidbra	RRF_UUFF
+b360	lpxr	RRE_FF
+b361	lnxr	RRE_FF
+b362	ltxr	RRE_FF
+b363	lcxr	RRE_FF
+b365	lxr	RRE_FF
+b366	lexr	RRE_FF
+b367	fixr	RRE_FF
+b369	cxr	RRE_FF
+b370	lpdfr	RRE_FF
+b371	lndfr	RRE_FF
+b372	cpsdr	RRF_F0FF2
+b373	lcdfr	RRE_FF
+b374	lzer	RRE_F0
+b375	lzdr	RRE_F0
+b376	lzxr	RRE_F0
+b377	fier	RRE_FF
+b37f	fidr	RRE_FF
+b384	sfpc	RRE_RR
+b385	sfasr	RRE_R0
+b38c	efpc	RRE_RR
+b390	celfbr	RRF_UUFR
+b391	cdlfbr	RRF_UUFR
+b392	cxlfbr	RRF_UUFR
+b394	cefbra	RRF_UUFR
+b395	cdfbra	RRF_UUFR
+b396	cxfbra	RRF_UUFR
+b398	cfebra	RRF_UURF
+b399	cfdbra	RRF_UURF
+b39a	cfxbra	RRF_UURF
+b39c	clfebr	RRF_UURF
+b39d	clfdbr	RRF_UURF
+b39e	clfxbr	RRF_UURF
+b3a0	celgbr	RRF_UUFR
+b3a1	cdlgbr	RRF_UUFR
+b3a2	cxlgbr	RRF_UUFR
+b3a4	cegbra	RRF_UUFR
+b3a5	cdgbra	RRF_UUFR
+b3a6	cxgbra	RRF_UUFR
+b3a8	cgebra	RRF_UURF
+b3a9	cgdbra	RRF_UURF
+b3aa	cgxbra	RRF_UURF
+b3ac	clgebr	RRF_UURF
+b3ad	clgdbr	RRF_UURF
+b3ae	clgxbr	RRF_UURF
+b3b4	cefr	RRE_FR
+b3b5	cdfr	RRE_FR
+b3b6	cxfr	RRE_FR
+b3b8	cfer	RRF_U0RF
+b3b9	cfdr	RRF_U0RF
+b3ba	cfxr	RRF_U0RF
+b3c1	ldgr	RRE_FR
+b3c4	cegr	RRE_FR
+b3c5	cdgr	RRE_FR
+b3c6	cxgr	RRE_FR
+b3c8	cger	RRF_U0RF
+b3c9	cgdr	RRF_U0RF
+b3ca	cgxr	RRF_U0RF
+b3cd	lgdr	RRE_RF
+b3d0	mdtra	RRF_FUFF2
+b3d1	ddtra	RRF_FUFF2
+b3d2	adtra	RRF_FUFF2
+b3d3	sdtra	RRF_FUFF2
+b3d4	ldetr	RRF_0UFF
+b3d5	ledtr	RRF_UUFF
+b3d6	ltdtr	RRE_FF
+b3d7	fidtr	RRF_UUFF
+b3d8	mxtra	RRF_FUFF2
+b3d9	dxtra	RRF_FUFF2
+b3da	axtra	RRF_FUFF2
+b3db	sxtra	RRF_FUFF2
+b3dc	lxdtr	RRF_0UFF
+b3dd	ldxtr	RRF_UUFF
+b3de	ltxtr	RRE_FF
+b3df	fixtr	RRF_UUFF
+b3e0	kdtr	RRE_FF
+b3e1	cgdtra	RRF_UURF
+b3e2	cudtr	RRE_RF
+b3e3	csdtr	RRF_0URF
+b3e4	cdtr	RRE_FF
+b3e5	eedtr	RRE_RF
+b3e7	esdtr	RRE_RF
+b3e8	kxtr	RRE_FF
+b3e9	cgxtra	RRF_UURF
+b3ea	cuxtr	RRE_RF
+b3eb	csxtr	RRF_0URF
+b3ec	cxtr	RRE_FF
+b3ed	eextr	RRE_RF
+b3ef	esxtr	RRE_RF
+b3f1	cdgtra	RRF_UUFR
+b3f2	cdutr	RRE_FR
+b3f3	cdstr	RRE_FR
+b3f4	cedtr	RRE_FF
+b3f5	qadtr	RRF_FUFF
+b3f6	iedtr	RRF_F0FR
+b3f7	rrdtr	RRF_FFRU
+b3f9	cxgtra	RRF_UUFR
+b3fa	cxutr	RRE_FR
+b3fb	cxstr	RRE_FR
+b3fc	cextr	RRE_FF
+b3fd	qaxtr	RRF_FUFF
+b3fe	iextr	RRF_F0FR
+b3ff	rrxtr	RRF_FFRU
+b6	stctl	RS_CCRD
+b7	lctl	RS_CCRD
+b900	lpgr	RRE_RR
+b901	lngr	RRE_RR
+b902	ltgr	RRE_RR
+b903	lcgr	RRE_RR
+b904	lgr	RRE_RR
+b905	lurag	RRE_RR
+b906	lgbr	RRE_RR
+b907	lghr	RRE_RR
+b908	agr	RRE_RR
+b909	sgr	RRE_RR
+b90a	algr	RRE_RR
+b90b	slgr	RRE_RR
+b90c	msgr	RRE_RR
+b90d	dsgr	RRE_RR
+b90e	eregg	RRE_RR
+b90f	lrvgr	RRE_RR
+b910	lpgfr	RRE_RR
+b911	lngfr	RRE_RR
+b912	ltgfr	RRE_RR
+b913	lcgfr	RRE_RR
+b914	lgfr	RRE_RR
+b916	llgfr	RRE_RR
+b917	llgtr	RRE_RR
+b918	agfr	RRE_RR
+b919	sgfr	RRE_RR
+b91a	algfr	RRE_RR
+b91b	slgfr	RRE_RR
+b91c	msgfr	RRE_RR
+b91d	dsgfr	RRE_RR
+b91e	kmac	RRE_RR
+b91f	lrvr	RRE_RR
+b920	cgr	RRE_RR
+b921	clgr	RRE_RR
+b925	sturg	RRE_RR
+b926	lbr	RRE_RR
+b927	lhr	RRE_RR
+b928	pckmo	RRE_00
+b929	kma	RRF_R0RR
+b92a	kmf	RRE_RR
+b92b	kmo	RRE_RR
+b92c	pcc	RRE_00
+b92d	kmctr	RRF_R0RR
+b92e	km	RRE_RR
+b92f	kmc	RRE_RR
+b930	cgfr	RRE_RR
+b931	clgfr	RRE_RR
+b93c	ppno	RRE_RR
+b93e	kimd	RRE_RR
+b93f	klmd	RRE_RR
+b941	cfdtr	RRF_UURF
+b942	clgdtr	RRF_UURF
+b943	clfdtr	RRF_UURF
+b946	bctgr	RRE_RR
+b949	cfxtr	RRF_UURF
+b94a	clgxtr	RRF_UURF
+b94b	clfxtr	RRF_UURF
+b951	cdftr	RRF_UUFR
+b952	cdlgtr	RRF_UUFR
+b953	cdlftr	RRF_UUFR
+b959	cxftr	RRF_UUFR
+b95a	cxlgtr	RRF_UUFR
+b95b	cxlftr	RRF_UUFR
+b960	cgrt	RRF_U0RR
+b961	clgrt	RRF_U0RR
+b972	crt	RRF_U0RR
+b973	clrt	RRF_U0RR
+b980	ngr	RRE_RR
+b981	ogr	RRE_RR
+b982	xgr	RRE_RR
+b983	flogr	RRE_RR
+b984	llgcr	RRE_RR
+b985	llghr	RRE_RR
+b986	mlgr	RRE_RR
+b987	dlgr	RRE_RR
+b988	alcgr	RRE_RR
+b989	slbgr	RRE_RR
+b98a	cspg	RRE_RR
+b98d	epsw	RRE_RR
+b98e	idte	RRF_RURR2
+b98f	crdte	RRF_RURR2
+b990	trtt	RRF_U0RR
+b991	trto	RRF_U0RR
+b992	trot	RRF_U0RR
+b993	troo	RRF_U0RR
+b994	llcr	RRE_RR
+b995	llhr	RRE_RR
+b996	mlr	RRE_RR
+b997	dlr	RRE_RR
+b998	alcr	RRE_RR
+b999	slbr	RRE_RR
+b99a	epair	RRE_R0
+b99b	esair	RRE_R0
+b99d	esea	RRE_R0
+b99e	pti	RRE_RR
+b99f	ssair	RRE_R0
+b9a1	tpei	RRE_RR
+b9a2	ptf	RRE_R0
+b9aa	lptea	RRF_RURR2
+b9ac	irbm	RRE_RR
+b9ae	rrbm	RRE_RR
+b9af	pfmf	RRE_RR
+b9b0	cu14	RRF_U0RR
+b9b1	cu24	RRF_U0RR
+b9b2	cu41	RRE_RR
+b9b3	cu42	RRE_RR
+b9bd	trtre	RRF_U0RR
+b9be	srstu	RRE_RR
+b9bf	trte	RRF_U0RR
+b9c8	ahhhr	RRF_R0RR2
+b9c9	shhhr	RRF_R0RR2
+b9ca	alhhhr	RRF_R0RR2
+b9cb	slhhhr	RRF_R0RR2
+b9cd	chhr	RRE_RR
+b9cf	clhhr	RRE_RR
+b9d0	pcistg	RRE_RR
+b9d2	pcilg	RRE_RR
+b9d3	rpcit	RRE_RR
+b9d8	ahhlr	RRF_R0RR2
+b9d9	shhlr	RRF_R0RR2
+b9da	alhhlr	RRF_R0RR2
+b9db	slhhlr	RRF_R0RR2
+b9dd	chlr	RRE_RR
+b9df	clhlr	RRE_RR
+b9e0	locfhr	RRF_U0RR
+b9e1	popcnt	RRE_RR
+b9e2	locgr	RRF_U0RR
+b9e4	ngrk	RRF_R0RR2
+b9e6	ogrk	RRF_R0RR2
+b9e7	xgrk	RRF_R0RR2
+b9e8	agrk	RRF_R0RR2
+b9e9	sgrk	RRF_R0RR2
+b9ea	algrk	RRF_R0RR2
+b9eb	slgrk	RRF_R0RR2
+b9ec	mgrk	RRF_R0RR2
+b9ed	msgrkc	RRF_R0RR2
+b9f2	locr	RRF_U0RR
+b9f4	nrk	RRF_R0RR2
+b9f6	ork	RRF_R0RR2
+b9f7	xrk	RRF_R0RR2
+b9f8	ark	RRF_R0RR2
+b9f9	srk	RRF_R0RR2
+b9fa	alrk	RRF_R0RR2
+b9fb	slrk	RRF_R0RR2
+b9fd	msrkc	RRF_R0RR2
+ba	cs	RS_RRRD
+bb	cds	RS_RRRD
+bd	clm	RS_RURD
+be	stcm	RS_RURD
+bf	icm	RS_RURD
+c00	larl	RIL_RP
+c01	lgfi	RIL_RI
+c04	brcl	RIL_UP
+c05	brasl	RIL_RP
+c06	xihf	RIL_RU
+c07	xilf	RIL_RU
+c08	iihf	RIL_RU
+c09	iilf	RIL_RU
+c0a	nihf	RIL_RU
+c0b	nilf	RIL_RU
+c0c	oihf	RIL_RU
+c0d	oilf	RIL_RU
+c0e	llihf	RIL_RU
+c0f	llilf	RIL_RU
+c20	msgfi	RIL_RI
+c21	msfi	RIL_RI
+c24	slgfi	RIL_RU
+c25	slfi	RIL_RU
+c28	agfi	RIL_RI
+c29	afi	RIL_RI
+c2a	algfi	RIL_RU
+c2b	alfi	RIL_RU
+c2c	cgfi	RIL_RI
+c2d	cfi	RIL_RI
+c2e	clgfi	RIL_RU
+c2f	clfi	RIL_RU
+c42	llhrl	RIL_RP
+c44	lghrl	RIL_RP
+c45	lhrl	RIL_RP
+c46	llghrl	RIL_RP
+c47	sthrl	RIL_RP
+c48	lgrl	RIL_RP
+c4b	stgrl	RIL_RP
+c4c	lgfrl	RIL_RP
+c4d	lrl	RIL_RP
+c4e	llgfrl	RIL_RP
+c4f	strl	RIL_RP
+c5	bprp	MII_UPP
+c60	exrl	RIL_RP
+c62	pfdrl	RIL_UP
+c64	cghrl	RIL_RP
+c65	chrl	RIL_RP
+c66	clghrl	RIL_RP
+c67	clhrl	RIL_RP
+c68	cgrl	RIL_RP
+c6a	clgrl	RIL_RP
+c6c	cgfrl	RIL_RP
+c6d	crl	RIL_RP
+c6e	clgfrl	RIL_RP
+c6f	clrl	RIL_RP
+c7	bpp	SMI_U0RDP
+c80	mvcos	SSF_RRDRD
+c81	ectg	SSF_RRDRD
+c82	csst	SSF_RRDRD
+c84	lpd	SSF_RRDRD2
+c85	lpdg	SSF_RRDRD2
+cc6	brcth	RIL_RP
+cc8	aih	RIL_RI
+cca	alsih	RIL_RI
+ccb	alsihn	RIL_RI
+ccd	cih	RIL_RI
+ccf	clih	RIL_RU
+d0	trtr	SS_L0RDRD
+d1	mvn	SS_L0RDRD
+d2	mvc	SS_L0RDRD
+d3	mvz	SS_L0RDRD
+d4	nc	SS_L0RDRD
+d5	clc	SS_L0RDRD
+d6	oc	SS_L0RDRD
+d7	xc	SS_L0RDRD
+d9	mvck	SS_RRRDRD
+da	mvcp	SS_RRRDRD
+db	mvcs	SS_RRRDRD
+dc	tr	SS_L0RDRD
+dd	trt	SS_L0RDRD
+de	ed	SS_L0RDRD
+df	edmk	SS_L0RDRD
+e1	pku	SS_L2RDRD
+e2	unpku	SS_L0RDRD
+e302	ltg	RXY_RRRD
+e303	lrag	RXY_RRRD
+e304	lg	RXY_RRRD
+e306	cvby	RXY_RRRD
+e308	ag	RXY_RRRD
+e309	sg	RXY_RRRD
+e30a	alg	RXY_RRRD
+e30b	slg	RXY_RRRD
+e30c	msg	RXY_RRRD
+e30d	dsg	RXY_RRRD
+e30e	cvbg	RXY_RRRD
+e30f	lrvg	RXY_RRRD
+e312	lt	RXY_RRRD
+e313	lray	RXY_RRRD
+e314	lgf	RXY_RRRD
+e315	lgh	RXY_RRRD
+e316	llgf	RXY_RRRD
+e317	llgt	RXY_RRRD
+e318	agf	RXY_RRRD
+e319	sgf	RXY_RRRD
+e31a	algf	RXY_RRRD
+e31b	slgf	RXY_RRRD
+e31c	msgf	RXY_RRRD
+e31d	dsgf	RXY_RRRD
+e31e	lrv	RXY_RRRD
+e31f	lrvh	RXY_RRRD
+e320	cg	RXY_RRRD
+e321	clg	RXY_RRRD
+e324	stg	RXY_RRRD
+e325	ntstg	RXY_RRRD
+e326	cvdy	RXY_RRRD
+e32a	lzrg	RXY_RRRD
+e32e	cvdg	RXY_RRRD
+e32f	strvg	RXY_RRRD
+e330	cgf	RXY_RRRD
+e331	clgf	RXY_RRRD
+e332	ltgf	RXY_RRRD
+e334	cgh	RXY_RRRD
+e336	pfd	RXY_URRD
+e338	agh	RXY_RRRD
+e339	sgh	RXY_RRRD
+e33a	llzrgf	RXY_RRRD
+e33b	lzrf	RXY_RRRD
+e33c	mgh	RXY_RRRD
+e33e	strv	RXY_RRRD
+e33f	strvh	RXY_RRRD
+e346	bctg	RXY_RRRD
+e347	bic	RXY_URRD
+e348	llgfsg	RXY_RRRD
+e349	stgsc	RXY_RRRD
+e34c	lgg	RXY_RRRD
+e34d	lgsc	RXY_RRRD
+e350	sty	RXY_RRRD
+e351	msy	RXY_RRRD
+e353	msc	RXY_RRRD
+e354	ny	RXY_RRRD
+e355	cly	RXY_RRRD
+e356	oy	RXY_RRRD
+e357	xy	RXY_RRRD
+e358	ly	RXY_RRRD
+e359	cy	RXY_RRRD
+e35a	ay	RXY_RRRD
+e35b	sy	RXY_RRRD
+e35c	mfy	RXY_RRRD
+e35e	aly	RXY_RRRD
+e35f	sly	RXY_RRRD
+e370	sthy	RXY_RRRD
+e371	lay	RXY_RRRD
+e372	stcy	RXY_RRRD
+e373	icy	RXY_RRRD
+e375	laey	RXY_RRRD
+e376	lb	RXY_RRRD
+e377	lgb	RXY_RRRD
+e378	lhy	RXY_RRRD
+e379	chy	RXY_RRRD
+e37a	ahy	RXY_RRRD
+e37b	shy	RXY_RRRD
+e37c	mhy	RXY_RRRD
+e380	ng	RXY_RRRD
+e381	og	RXY_RRRD
+e382	xg	RXY_RRRD
+e383	msgc	RXY_RRRD
+e384	mg	RXY_RRRD
+e385	lgat	RXY_RRRD
+e386	mlg	RXY_RRRD
+e387	dlg	RXY_RRRD
+e388	alcg	RXY_RRRD
+e389	slbg	RXY_RRRD
+e38e	stpq	RXY_RRRD
+e38f	lpq	RXY_RRRD
+e390	llgc	RXY_RRRD
+e391	llgh	RXY_RRRD
+e394	llc	RXY_RRRD
+e395	llh	RXY_RRRD
+e396	ml	RXY_RRRD
+e397	dl	RXY_RRRD
+e398	alc	RXY_RRRD
+e399	slb	RXY_RRRD
+e39c	llgtat	RXY_RRRD
+e39d	llgfat	RXY_RRRD
+e39f	lat	RXY_RRRD
+e3c0	lbh	RXY_RRRD
+e3c2	llch	RXY_RRRD
+e3c3	stch	RXY_RRRD
+e3c4	lhh	RXY_RRRD
+e3c6	llhh	RXY_RRRD
+e3c7	sthh	RXY_RRRD
+e3c8	lfhat	RXY_RRRD
+e3ca	lfh	RXY_RRRD
+e3cb	stfh	RXY_RRRD
+e3cd	chf	RXY_RRRD
+e3cf	clhf	RXY_RRRD
+e3d0	mpcifc	RXY_RRRD
+e3d4	stpcifc	RXY_RRRD
+e500	lasp	SSE_RDRD
+e501	tprot	SSE_RDRD
+e502	strag	SSE_RDRD
+e50e	mvcsk	SSE_RDRD
+e50f	mvcdk	SSE_RDRD
+e544	mvhhi	SIL_RDI
+e548	mvghi	SIL_RDI
+e54c	mvhi	SIL_RDI
+e554	chhsi	SIL_RDI
+e555	clhhsi	SIL_RDU
+e558	cghsi	SIL_RDI
+e559	clghsi	SIL_RDU
+e55c	chsi	SIL_RDI
+e55d	clfhsi	SIL_RDU
+e560	tbegin	SIL_RDU
+e561	tbeginc	SIL_RDU
+e634	vpkz	VSI_URDV
+e635	vlrl	VSI_URDV
+e637	vlrlr	VRS_RRDV
+e63c	vupkz	VSI_URDV
+e63d	vstrl	VSI_URDV
+e63f	vstrlr	VRS_RRDV
+e649	vlip	VRI_V0UU2
+e650	vcvb	VRR_RV0U
+e652	vcvbg	VRR_RV0U
+e658	vcvd	VRI_VR0UU
+e659	vsrp	VRI_VVUUU2
+e65a	vcvdg	VRI_VR0UU
+e65b	vpsop	VRI_VVUUU2
+e65f	vtp	VRR_0V
+e671	vap	VRI_VVV0UU2
+e673	vsp	VRI_VVV0UU2
+e677	vcp	VRR_0VV0U
+e678	vmp	VRI_VVV0UU2
+e679	vmsp	VRI_VVV0UU2
+e67a	vdp	VRI_VVV0UU2
+e67b	vrp	VRI_VVV0UU2
+e67e	vsdp	VRI_VVV0UU2
+e700	vleb	VRX_VRRDU
+e701	vleh	VRX_VRRDU
+e702	vleg	VRX_VRRDU
+e703	vlef	VRX_VRRDU
+e704	vllez	VRX_VRRDU
+e705	vlrep	VRX_VRRDU
+e706	vl	VRX_VRRD
+e707	vlbb	VRX_VRRDU
+e708	vsteb	VRX_VRRDU
+e709	vsteh	VRX_VRRDU
+e70a	vsteg	VRX_VRRDU
+e70b	vstef	VRX_VRRDU
+e70e	vst	VRX_VRRD
+e712	vgeg	VRV_VVXRDU
+e713	vgef	VRV_VVXRDU
+e71a	vsceg	VRV_VVXRDU
+e71b	vscef	VRV_VVXRDU
+e721	vlgv	VRS_RVRDU
+e722	vlvg	VRS_VRRDU
+e727	lcbb	RXE_RRRDU
+e730	vesl	VRS_VVRDU
+e733	verll	VRS_VVRDU
+e736	vlm	VRS_VVRD
+e737	vll	VRS_VRRD
+e738	vesrl	VRS_VVRDU
+e73a	vesra	VRS_VVRDU
+e73e	vstm	VRS_VVRD
+e73f	vstl	VRS_VRRD
+e740	vleib	VRI_V0IU
+e741	vleih	VRI_V0IU
+e742	vleig	VRI_V0IU
+e743	vleif	VRI_V0IU
+e744	vgbm	VRI_V0U
+e745	vrepi	VRI_V0IU
+e746	vgm	VRI_V0UUU
+e74a	vftci	VRI_VVUUU
+e74d	vrep	VRI_VVUU
+e750	vpopct	VRR_VV0U
+e752	vctz	VRR_VV0U
+e753	vclz	VRR_VV0U
+e756	vlr	VRX_VV
+e75c	vistr	VRR_VV0U0U
+e75f	vseg	VRR_VV0U
+e760	vmrl	VRR_VVV0U
+e761	vmrh	VRR_VVV0U
+e762	vlvgp	VRR_VRR
+e764	vsum	VRR_VVV0U
+e765	vsumg	VRR_VVV0U
+e766	vcksm	VRR_VVV
+e767	vsumq	VRR_VVV0U
+e768	vn	VRR_VVV
+e769	vnc	VRR_VVV
+e76a	vo	VRR_VVV
+e76b	vno	VRR_VVV
+e76c	vnx	VRR_VVV
+e76d	vx	VRR_VVV
+e76e	vnn	VRR_VVV
+e76f	voc	VRR_VVV
+e770	veslv	VRR_VVV0U
+e772	verim	VRI_VVV0UU
+e773	verllv	VRR_VVV0U
+e774	vsl	VRR_VVV
+e775	vslb	VRR_VVV
+e777	vsldb	VRI_VVV0U
+e778	vesrlv	VRR_VVV0U
+e77a	vesrav	VRR_VVV0U
+e77c	vsrl	VRR_VVV
+e77d	vsrlb	VRR_VVV
+e77e	vsra	VRR_VVV
+e77f	vsrab	VRR_VVV
+e780	vfee	VRR_VVV0U0U
+e781	vfene	VRR_VVV0U0U
+e782	vfae	VRR_VVV0U0U
+e784	vpdi	VRR_VVV0U
+e785	vbperm	VRR_VVV
+e78a	vstrc	VRR_VVVUU0V
+e78c	vperm	VRR_VVV0V
+e78d	vsel	VRR_VVV0V
+e78e	vfms	VRR_VVVU0UV
+e78f	vfma	VRR_VVVU0UV
+e794	vpk	VRR_VVV0U
+e795	vpkls	VRR_VVV0U0U
+e797	vpks	VRR_VVV0U0U
+e79e	vfnms	VRR_VVVU0UV
+e79f	vfnma	VRR_VVVU0UV
+e7a1	vmlh	VRR_VVV0U
+e7a2	vml	VRR_VVV0U
+e7a3	vmh	VRR_VVV0U
+e7a4	vmle	VRR_VVV0U
+e7a5	vmlo	VRR_VVV0U
+e7a6	vme	VRR_VVV0U
+e7a7	vmo	VRR_VVV0U
+e7a9	vmalh	VRR_VVVU0V
+e7aa	vmal	VRR_VVVU0V
+e7ab	vmah	VRR_VVVU0V
+e7ac	vmale	VRR_VVVU0V
+e7ad	vmalo	VRR_VVVU0V
+e7ae	vmae	VRR_VVVU0V
+e7af	vmao	VRR_VVVU0V
+e7b4	vgfm	VRR_VVV0U
+e7b8	vmsl	VRR_VVVUU0V
+e7b9	vaccc	VRR_VVVU0V
+e7bb	vac	VRR_VVVU0V
+e7bc	vgfma	VRR_VVVU0V
+e7bd	vsbcbi	VRR_VVVU0V
+e7bf	vsbi	VRR_VVVU0V
+e7c0	vclgd	VRR_VV0UUU
+e7c1	vcdlg	VRR_VV0UUU
+e7c2	vcgd	VRR_VV0UUU
+e7c3	vcdg	VRR_VV0UUU
+e7c4	vlde	VRR_VV0UU2
+e7c5	vled	VRR_VV0UUU
+e7c7	vfi	VRR_VV0UUU
+e7ca	wfk	VRR_VV0UU2
+e7cb	wfc	VRR_VV0UU2
+e7cc	vfpso	VRR_VV0UUU
+e7ce	vfsq	VRR_VV0UU2
+e7d4	vupll	VRR_VV0U
+e7d5	vuplh	VRR_VV0U
+e7d6	vupl	VRR_VV0U
+e7d7	vuph	VRR_VV0U
+e7d8	vtm	VRR_VV
+e7d9	vecl	VRR_VV0U
+e7db	vec	VRR_VV0U
+e7de	vlc	VRR_VV0U
+e7df	vlp	VRR_VV0U
+e7e2	vfs	VRR_VVV0UU
+e7e3	vfa	VRR_VVV0UU
+e7e5	vfd	VRR_VVV0UU
+e7e7	vfm	VRR_VVV0UU
+e7e8	vfce	VRR_VVV0UUU
+e7ea	vfche	VRR_VVV0UUU
+e7eb	vfch	VRR_VVV0UUU
+e7ee	vfmin	VRR_VVV0UUU
+e7ef	vfmax	VRR_VVV0UUU
+e7f0	vavgl	VRR_VVV0U
+e7f1	vacc	VRR_VVV0U
+e7f2	vavg	VRR_VVV0U
+e7f3	va	VRR_VVV0U
+e7f5	vscbi	VRR_VVV0U
+e7f7	vs	VRR_VVV0U
+e7f8	vceq	VRR_VVV0U0U
+e7f9	vchl	VRR_VVV0U0U
+e7fb	vch	VRR_VVV0U0U
+e7fc	vmnl	VRR_VVV0U
+e7fd	vmxl	VRR_VVV0U
+e7fe	vmn	VRR_VVV0U
+e7ff	vmx	VRR_VVV0U
+e8	mvcin	SS_L0RDRD
+e9	pka	SS_L2RDRD
+ea	unpka	SS_L0RDRD
+eb04	lmg	RSY_RRRD
+eb0a	srag	RSY_RRRD
+eb0b	slag	RSY_RRRD
+eb0c	srlg	RSY_RRRD
+eb0d	sllg	RSY_RRRD
+eb0f	tracg	RSY_RRRD
+eb14	csy	RSY_RRRD
+eb17	stcctm	RSY_RURD
+eb1c	rllg	RSY_RRRD
+eb1d	rll	RSY_RRRD
+eb20	clmh	RSY_RURD
+eb21	clmy	RSY_RURD
+eb23	clt	RSY_RURD
+eb24	stmg	RSY_RRRD
+eb25	stctg	RSY_CCRD
+eb26	stmh	RSY_RRRD
+eb2b	clgt	RSY_RURD
+eb2c	stcmh	RSY_RURD
+eb2d	stcmy	RSY_RURD
+eb2f	lctlg	RSY_CCRD
+eb30	csg	RSY_RRRD
+eb31	cdsy	RSY_RRRD
+eb3e	cdsg	RSY_RRRD
+eb44	bxhg	RSY_RRRD
+eb45	bxleg	RSY_RRRD
+eb4c	ecag	RSY_RRRD
+eb51	tmy	SIY_URD
+eb52	mviy	SIY_URD
+eb54	niy	SIY_URD
+eb55	cliy	SIY_URD
+eb56	oiy	SIY_URD
+eb57	xiy	SIY_URD
+eb60	lric	RSY_RDRU
+eb61	stric	RSY_RDRU
+eb62	mric	RSY_RDRU
+eb6a	asi	SIY_IRD
+eb6e	alsi	SIY_IRD
+eb7a	agsi	SIY_IRD
+eb7e	algsi	SIY_IRD
+eb80	icmh	RSY_RURD
+eb81	icmy	RSY_RURD
+eb8e	mvclu	RSY_RRRD
+eb8f	clclu	RSY_RRRD
+eb90	stmy	RSY_RRRD
+eb96	lmh	RSY_RRRD
+eb98	lmy	RSY_RRRD
+eb9a	lamy	RSY_AARD
+eb9b	stamy	RSY_AARD
+ebc0	tp	RSL_R0RD
+ebd0	pcistb	RSY_RRRD
+ebd1	sic	RSY_RRRD
+ebdc	srak	RSY_RRRD
+ebdd	slak	RSY_RRRD
+ebde	srlk	RSY_RRRD
+ebdf	sllk	RSY_RRRD
+ebe0	locfh	RSY_RURD2
+ebe1	stocfh	RSY_RURD2
+ebe2	locg	RSY_RURD2
+ebe3	stocg	RSY_RURD2
+ebe4	lang	RSY_RRRD
+ebe6	laog	RSY_RRRD
+ebe7	laxg	RSY_RRRD
+ebe8	laag	RSY_RRRD
+ebea	laalg	RSY_RRRD
+ebf2	loc	RSY_RURD2
+ebf3	stoc	RSY_RURD2
+ebf4	lan	RSY_RRRD
+ebf6	lao	RSY_RRRD
+ebf7	lax	RSY_RRRD
+ebf8	laa	RSY_RRRD
+ebfa	laal	RSY_RRRD
+ec42	lochi	RIE_RUI0
+ec44	brxhg	RIE_RRP
+ec45	brxlg	RIE_RRP
+ec46	locghi	RIE_RUI0
+ec4e	lochhi	RIE_RUI0
+ec51	risblg	RIE_RRUUU
+ec54	rnsbg	RIE_RRUUU
+ec55	risbg	RIE_RRUUU
+ec56	rosbg	RIE_RRUUU
+ec57	rxsbg	RIE_RRUUU
+ec59	risbgn	RIE_RRUUU
+ec5d	risbhg	RIE_RRUUU
+ec64	cgrj	RIE_RRPU
+ec65	clgrj	RIE_RRPU
+ec70	cgit	RIE_R0IU
+ec71	clgit	RIE_R0UU
+ec72	cit	RIE_R0IU
+ec73	clfit	RIE_R0UU
+ec76	crj	RIE_RRPU
+ec77	clrj	RIE_RRPU
+ec7c	cgij	RIE_RUPI
+ec7d	clgij	RIE_RUPU
+ec7e	cij	RIE_RUPI
+ec7f	clij	RIE_RUPU
+ecd8	ahik	RIE_RRI0
+ecd9	aghik	RIE_RRI0
+ecda	alhsik	RIE_RRI0
+ecdb	alghsik	RIE_RRI0
+ece4	cgrb	RRS_RRRDU
+ece5	clgrb	RRS_RRRDU
+ecf6	crb	RRS_RRRDU
+ecf7	clrb	RRS_RRRDU
+ecfc	cgib	RIS_RURDI
+ecfd	clgib	RIS_RURDU
+ecfe	cib	RIS_RURDI
+ecff	clib	RIS_RURDU
+ed04	ldeb	RXE_FRRD
+ed05	lxdb	RXE_FRRD
+ed06	lxeb	RXE_FRRD
+ed07	mxdb	RXE_FRRD
+ed08	keb	RXE_FRRD
+ed09	ceb	RXE_FRRD
+ed0a	aeb	RXE_FRRD
+ed0b	seb	RXE_FRRD
+ed0c	mdeb	RXE_FRRD
+ed0d	deb	RXE_FRRD
+ed0e	maeb	RXF_FRRDF
+ed0f	mseb	RXF_FRRDF
+ed10	tceb	RXE_FRRD
+ed11	tcdb	RXE_FRRD
+ed12	tcxb	RXE_FRRD
+ed14	sqeb	RXE_FRRD
+ed15	sqdb	RXE_FRRD
+ed17	meeb	RXE_FRRD
+ed18	kdb	RXE_FRRD
+ed19	cdb	RXE_FRRD
+ed1a	adb	RXE_FRRD
+ed1b	sdb	RXE_FRRD
+ed1c	mdb	RXE_FRRD
+ed1d	ddb	RXE_FRRD
+ed1e	madb	RXF_FRRDF
+ed1f	msdb	RXF_FRRDF
+ed24	lde	RXE_FRRD
+ed25	lxd	RXE_FRRD
+ed26	lxe	RXE_FRRD
+ed2e	mae	RXF_FRRDF
+ed2f	mse	RXF_FRRDF
+ed34	sqe	RXE_FRRD
+ed35	sqd	RXE_FRRD
+ed37	mee	RXE_FRRD
+ed38	mayl	RXF_FRRDF
+ed39	myl	RXF_FRRDF
+ed3a	may	RXF_FRRDF
+ed3b	my	RXF_FRRDF
+ed3c	mayh	RXF_FRRDF
+ed3d	myh	RXF_FRRDF
+ed3e	mad	RXF_FRRDF
+ed3f	msd	RXF_FRRDF
+ed40	sldt	RXF_FRRDF
+ed41	srdt	RXF_FRRDF
+ed48	slxt	RXF_FRRDF
+ed49	srxt	RXF_FRRDF
+ed50	tdcet	RXE_FRRD
+ed51	tdget	RXE_FRRD
+ed54	tdcdt	RXE_FRRD
+ed55	tdgdt	RXE_FRRD
+ed58	tdcxt	RXE_FRRD
+ed59	tdgxt	RXE_FRRD
+ed64	ley	RXY_FRRD
+ed65	ldy	RXY_FRRD
+ed66	stey	RXY_FRRD
+ed67	stdy	RXY_FRRD
+eda8	czdt	RSL_LRDFU
+eda9	czxt	RSL_LRDFU
+edaa	cdzt	RSL_LRDFU
+edab	cxzt	RSL_LRDFU
+edac	cpdt	RSL_LRDFU
+edad	cpxt	RSL_LRDFU
+edae	cdpt	RSL_LRDFU
+edaf	cxpt	RSL_LRDFU
+ee	plo	SS_RRRDRD2
+ef	lmd	SS_RRRDRD3
+f0	srp	SS_LIRDRD
+f1	mvo	SS_LLRDRD
+f2	pack	SS_LLRDRD
+f3	unpk	SS_LLRDRD
+f8	zap	SS_LLRDRD
+f9	cp	SS_LLRDRD
+fa	ap	SS_LLRDRD
+fb	sp	SS_LLRDRD
+fc	mp	SS_LLRDRD
+fd	dp	SS_LLRDRD
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 507d63181389..d881f99c9ddd 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Machine selection"
 
 config SCORE
diff --git a/arch/score/Kconfig.debug b/arch/score/Kconfig.debug
index d8a9b2d146ee..041e51dcdafb 100644
--- a/arch/score/Kconfig.debug
+++ b/arch/score/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/score/include/asm/asmmacro.h b/arch/score/include/asm/asmmacro.h
index a04a54cea25d..7370a35d17d1 100644
--- a/arch/score/include/asm/asmmacro.h
+++ b/arch/score/include/asm/asmmacro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_ASMMACRO_H
 #define _ASM_SCORE_ASMMACRO_H
 
diff --git a/arch/score/include/asm/atomic.h b/arch/score/include/asm/atomic.h
index edf33dbded1e..56700980b9be 100644
--- a/arch/score/include/asm/atomic.h
+++ b/arch/score/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_ATOMIC_H
 #define _ASM_SCORE_ATOMIC_H
 
diff --git a/arch/score/include/asm/bitops.h b/arch/score/include/asm/bitops.h
index c1bf8d6d0fb0..6342b0123725 100644
--- a/arch/score/include/asm/bitops.h
+++ b/arch/score/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_BITOPS_H
 #define _ASM_SCORE_BITOPS_H
 
diff --git a/arch/score/include/asm/bug.h b/arch/score/include/asm/bug.h
index fd7164af1f04..966b2e9e8d74 100644
--- a/arch/score/include/asm/bug.h
+++ b/arch/score/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_BUG_H
 #define _ASM_SCORE_BUG_H
 
diff --git a/arch/score/include/asm/bugs.h b/arch/score/include/asm/bugs.h
index a062e1056bb3..81185dced763 100644
--- a/arch/score/include/asm/bugs.h
+++ b/arch/score/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_BUGS_H
 #define _ASM_SCORE_BUGS_H
 
diff --git a/arch/score/include/asm/cache.h b/arch/score/include/asm/cache.h
index ae3d59f2d2c4..d55de3cbbb9f 100644
--- a/arch/score/include/asm/cache.h
+++ b/arch/score/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_CACHE_H
 #define _ASM_SCORE_CACHE_H
 
diff --git a/arch/score/include/asm/cacheflush.h b/arch/score/include/asm/cacheflush.h
index 1d545d0ce206..cf1e609634fd 100644
--- a/arch/score/include/asm/cacheflush.h
+++ b/arch/score/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_CACHEFLUSH_H
 #define _ASM_SCORE_CACHEFLUSH_H
 
diff --git a/arch/score/include/asm/checksum.h b/arch/score/include/asm/checksum.h
index 0338927f4826..9f00ca5fd49d 100644
--- a/arch/score/include/asm/checksum.h
+++ b/arch/score/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_CHECKSUM_H
 #define _ASM_SCORE_CHECKSUM_H
 
diff --git a/arch/score/include/asm/cmpxchg.h b/arch/score/include/asm/cmpxchg.h
index cc3f6420b71c..e503073c8978 100644
--- a/arch/score/include/asm/cmpxchg.h
+++ b/arch/score/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_CMPXCHG_H
 #define _ASM_SCORE_CMPXCHG_H
 
diff --git a/arch/score/include/asm/delay.h b/arch/score/include/asm/delay.h
index 529e494712a5..a4bd2c748ab4 100644
--- a/arch/score/include/asm/delay.h
+++ b/arch/score/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_DELAY_H
 #define _ASM_SCORE_DELAY_H
 
diff --git a/arch/score/include/asm/device.h b/arch/score/include/asm/device.h
index 2dc7cc5d5ef9..818ad4d01197 100644
--- a/arch/score/include/asm/device.h
+++ b/arch/score/include/asm/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_DEVICE_H
 #define _ASM_SCORE_DEVICE_H
 
diff --git a/arch/score/include/asm/div64.h b/arch/score/include/asm/div64.h
index 75fae19824eb..cf73dc218bec 100644
--- a/arch/score/include/asm/div64.h
+++ b/arch/score/include/asm/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_DIV64_H
 #define _ASM_SCORE_DIV64_H
 
diff --git a/arch/score/include/asm/dma.h b/arch/score/include/asm/dma.h
index 9f44185298bf..fd44a9cbee4f 100644
--- a/arch/score/include/asm/dma.h
+++ b/arch/score/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_DMA_H
 #define _ASM_SCORE_DMA_H
 
diff --git a/arch/score/include/asm/elf.h b/arch/score/include/asm/elf.h
index 6a9421c693ca..c970ac160f3c 100644
--- a/arch/score/include/asm/elf.h
+++ b/arch/score/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_ELF_H
 #define _ASM_SCORE_ELF_H
 
diff --git a/arch/score/include/asm/emergency-restart.h b/arch/score/include/asm/emergency-restart.h
index ca31e9803a8a..b0612c677764 100644
--- a/arch/score/include/asm/emergency-restart.h
+++ b/arch/score/include/asm/emergency-restart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_EMERGENCY_RESTART_H
 #define _ASM_SCORE_EMERGENCY_RESTART_H
 
diff --git a/arch/score/include/asm/exec.h b/arch/score/include/asm/exec.h
index f9f3cd59c860..a1f95e1d8a31 100644
--- a/arch/score/include/asm/exec.h
+++ b/arch/score/include/asm/exec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_EXEC_H
 #define _ASM_SCORE_EXEC_H
 
diff --git a/arch/score/include/asm/fixmap.h b/arch/score/include/asm/fixmap.h
index ee1676694024..68ca314830c9 100644
--- a/arch/score/include/asm/fixmap.h
+++ b/arch/score/include/asm/fixmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_FIXMAP_H
 #define _ASM_SCORE_FIXMAP_H
 
diff --git a/arch/score/include/asm/futex.h b/arch/score/include/asm/futex.h
index 1dca2420f8db..ec247fb364c9 100644
--- a/arch/score/include/asm/futex.h
+++ b/arch/score/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_FUTEX_H
 #define _ASM_SCORE_FUTEX_H
 
diff --git a/arch/score/include/asm/hardirq.h b/arch/score/include/asm/hardirq.h
index dc932c50d3ee..d8dd8909cb18 100644
--- a/arch/score/include/asm/hardirq.h
+++ b/arch/score/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_HARDIRQ_H
 #define _ASM_SCORE_HARDIRQ_H
 
diff --git a/arch/score/include/asm/io.h b/arch/score/include/asm/io.h
index 574c8827abe2..37ce8723b06b 100644
--- a/arch/score/include/asm/io.h
+++ b/arch/score/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_IO_H
 #define _ASM_SCORE_IO_H
 
diff --git a/arch/score/include/asm/irq.h b/arch/score/include/asm/irq.h
index c883f3df33fa..c1434c889de2 100644
--- a/arch/score/include/asm/irq.h
+++ b/arch/score/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_IRQ_H
 #define _ASM_SCORE_IRQ_H
 
diff --git a/arch/score/include/asm/irq_regs.h b/arch/score/include/asm/irq_regs.h
index b8e881c9a69f..740b2315d848 100644
--- a/arch/score/include/asm/irq_regs.h
+++ b/arch/score/include/asm/irq_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_IRQ_REGS_H
 #define _ASM_SCORE_IRQ_REGS_H
 
diff --git a/arch/score/include/asm/irqflags.h b/arch/score/include/asm/irqflags.h
index 37c6ac9dd6e8..354c1979ea8d 100644
--- a/arch/score/include/asm/irqflags.h
+++ b/arch/score/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_IRQFLAGS_H
 #define _ASM_SCORE_IRQFLAGS_H
 
diff --git a/arch/score/include/asm/kdebug.h b/arch/score/include/asm/kdebug.h
index a666e513f747..481ba1fb5372 100644
--- a/arch/score/include/asm/kdebug.h
+++ b/arch/score/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_KDEBUG_H
 #define _ASM_SCORE_KDEBUG_H
 
diff --git a/arch/score/include/asm/kmap_types.h b/arch/score/include/asm/kmap_types.h
index 6c46eb5077d3..14261872c9c7 100644
--- a/arch/score/include/asm/kmap_types.h
+++ b/arch/score/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_KMAP_TYPES_H
 #define _ASM_SCORE_KMAP_TYPES_H
 
diff --git a/arch/score/include/asm/linkage.h b/arch/score/include/asm/linkage.h
index 2323a8ecf445..0c11c009969a 100644
--- a/arch/score/include/asm/linkage.h
+++ b/arch/score/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_LINKAGE_H
 #define _ASM_SCORE_LINKAGE_H
 
diff --git a/arch/score/include/asm/local.h b/arch/score/include/asm/local.h
index 7e02f13dbba8..00bdebdf75f2 100644
--- a/arch/score/include/asm/local.h
+++ b/arch/score/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_LOCAL_H
 #define _ASM_SCORE_LOCAL_H
 
diff --git a/arch/score/include/asm/mmu.h b/arch/score/include/asm/mmu.h
index 676828e4c10a..d913369adda3 100644
--- a/arch/score/include/asm/mmu.h
+++ b/arch/score/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_MMU_H
 #define _ASM_SCORE_MMU_H
 
diff --git a/arch/score/include/asm/mmu_context.h b/arch/score/include/asm/mmu_context.h
index 073f95d350de..d0aa2a5aebca 100644
--- a/arch/score/include/asm/mmu_context.h
+++ b/arch/score/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_MMU_CONTEXT_H
 #define _ASM_SCORE_MMU_CONTEXT_H
 
diff --git a/arch/score/include/asm/module.h b/arch/score/include/asm/module.h
index 6dc1f2935eef..33777ed32e9e 100644
--- a/arch/score/include/asm/module.h
+++ b/arch/score/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_MODULE_H
 #define _ASM_SCORE_MODULE_H
 
diff --git a/arch/score/include/asm/page.h b/arch/score/include/asm/page.h
index 1e9ade8e77e6..17d9c68b6bd5 100644
--- a/arch/score/include/asm/page.h
+++ b/arch/score/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PAGE_H
 #define _ASM_SCORE_PAGE_H
 
diff --git a/arch/score/include/asm/percpu.h b/arch/score/include/asm/percpu.h
index e7bd4e05b475..5a6a2f7e5d62 100644
--- a/arch/score/include/asm/percpu.h
+++ b/arch/score/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PERCPU_H
 #define _ASM_SCORE_PERCPU_H
 
diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h
index 49b012d78c1a..7dfc5c163093 100644
--- a/arch/score/include/asm/pgalloc.h
+++ b/arch/score/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PGALLOC_H
 #define _ASM_SCORE_PGALLOC_H
 
diff --git a/arch/score/include/asm/pgtable-bits.h b/arch/score/include/asm/pgtable-bits.h
index 0e5c6f466520..fb8f306f4d11 100644
--- a/arch/score/include/asm/pgtable-bits.h
+++ b/arch/score/include/asm/pgtable-bits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PGTABLE_BITS_H
 #define _ASM_SCORE_PGTABLE_BITS_H
 
diff --git a/arch/score/include/asm/pgtable.h b/arch/score/include/asm/pgtable.h
index 46ff8fd678a7..c14226be0559 100644
--- a/arch/score/include/asm/pgtable.h
+++ b/arch/score/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PGTABLE_H
 #define _ASM_SCORE_PGTABLE_H
 
diff --git a/arch/score/include/asm/processor.h b/arch/score/include/asm/processor.h
index 299274581968..1412c774c6b1 100644
--- a/arch/score/include/asm/processor.h
+++ b/arch/score/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PROCESSOR_H
 #define _ASM_SCORE_PROCESSOR_H
 
diff --git a/arch/score/include/asm/ptrace.h b/arch/score/include/asm/ptrace.h
index abc279d96b73..026b9c51bee8 100644
--- a/arch/score/include/asm/ptrace.h
+++ b/arch/score/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_PTRACE_H
 #define _ASM_SCORE_PTRACE_H
 
diff --git a/arch/score/include/asm/scoreregs.h b/arch/score/include/asm/scoreregs.h
index d0ad29204518..ff8d20a49aa7 100644
--- a/arch/score/include/asm/scoreregs.h
+++ b/arch/score/include/asm/scoreregs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_SCOREREGS_H
 #define _ASM_SCORE_SCOREREGS_H
 
diff --git a/arch/score/include/asm/segment.h b/arch/score/include/asm/segment.h
index e16cf6afb495..b00c277e17ff 100644
--- a/arch/score/include/asm/segment.h
+++ b/arch/score/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_SEGMENT_H
 #define _ASM_SCORE_SEGMENT_H
 
diff --git a/arch/score/include/asm/setup.h b/arch/score/include/asm/setup.h
index 1f3aa7262fa3..a596d0bd0632 100644
--- a/arch/score/include/asm/setup.h
+++ b/arch/score/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_SETUP_H
 #define _ASM_SCORE_SETUP_H
 
diff --git a/arch/score/include/asm/shmparam.h b/arch/score/include/asm/shmparam.h
index 1d60813141b6..01a3d0eaed80 100644
--- a/arch/score/include/asm/shmparam.h
+++ b/arch/score/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_SHMPARAM_H
 #define _ASM_SCORE_SHMPARAM_H
 
diff --git a/arch/score/include/asm/string.h b/arch/score/include/asm/string.h
index 8a6bf5063aa5..3debf3b234b7 100644
--- a/arch/score/include/asm/string.h
+++ b/arch/score/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_STRING_H
 #define _ASM_SCORE_STRING_H
 
diff --git a/arch/score/include/asm/switch_to.h b/arch/score/include/asm/switch_to.h
index fda3f83308d2..ce730e60cd43 100644
--- a/arch/score/include/asm/switch_to.h
+++ b/arch/score/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_SWITCH_TO_H
 #define _ASM_SCORE_SWITCH_TO_H
 
diff --git a/arch/score/include/asm/syscalls.h b/arch/score/include/asm/syscalls.h
index 98d1df92fbd1..caa099fd9a8e 100644
--- a/arch/score/include/asm/syscalls.h
+++ b/arch/score/include/asm/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_SYSCALLS_H
 #define _ASM_SCORE_SYSCALLS_H
 
diff --git a/arch/score/include/asm/thread_info.h b/arch/score/include/asm/thread_info.h
index 7d9ffb15c477..ad51b56e51bd 100644
--- a/arch/score/include/asm/thread_info.h
+++ b/arch/score/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_THREAD_INFO_H
 #define _ASM_SCORE_THREAD_INFO_H
 
diff --git a/arch/score/include/asm/timex.h b/arch/score/include/asm/timex.h
index a524ae0c5e7b..ea8e7ff49e57 100644
--- a/arch/score/include/asm/timex.h
+++ b/arch/score/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_TIMEX_H
 #define _ASM_SCORE_TIMEX_H
 
diff --git a/arch/score/include/asm/tlb.h b/arch/score/include/asm/tlb.h
index 46882ed524e6..6e7206428877 100644
--- a/arch/score/include/asm/tlb.h
+++ b/arch/score/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_TLB_H
 #define _ASM_SCORE_TLB_H
 
diff --git a/arch/score/include/asm/tlbflush.h b/arch/score/include/asm/tlbflush.h
index 9cce978367d5..f48722f4b00e 100644
--- a/arch/score/include/asm/tlbflush.h
+++ b/arch/score/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_TLBFLUSH_H
 #define _ASM_SCORE_TLBFLUSH_H
 
diff --git a/arch/score/include/asm/topology.h b/arch/score/include/asm/topology.h
index 425fba381f88..06577d2a1808 100644
--- a/arch/score/include/asm/topology.h
+++ b/arch/score/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_TOPOLOGY_H
 #define _ASM_SCORE_TOPOLOGY_H
 
diff --git a/arch/score/include/asm/uaccess.h b/arch/score/include/asm/uaccess.h
index 0ef220474d9b..a233f3236846 100644
--- a/arch/score/include/asm/uaccess.h
+++ b/arch/score/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SCORE_UACCESS_H
 #define __SCORE_UACCESS_H
 
diff --git a/arch/score/include/asm/unaligned.h b/arch/score/include/asm/unaligned.h
index 2fc06de51c62..5db6c805ce7e 100644
--- a/arch/score/include/asm/unaligned.h
+++ b/arch/score/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_UNALIGNED_H
 #define _ASM_SCORE_UNALIGNED_H
 
diff --git a/arch/score/include/asm/user.h b/arch/score/include/asm/user.h
index 7bfb8e2c8054..f7b0f3434e72 100644
--- a/arch/score/include/asm/user.h
+++ b/arch/score/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SCORE_USER_H
 #define _ASM_SCORE_USER_H
 
diff --git a/arch/score/include/uapi/asm/bitsperlong.h b/arch/score/include/uapi/asm/bitsperlong.h
index 86ff337aa459..df48f2717da2 100644
--- a/arch/score/include/uapi/asm/bitsperlong.h
+++ b/arch/score/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_BITSPERLONG_H
 #define _ASM_SCORE_BITSPERLONG_H
 
diff --git a/arch/score/include/uapi/asm/byteorder.h b/arch/score/include/uapi/asm/byteorder.h
index 88cbebc79212..a5247ea66c03 100644
--- a/arch/score/include/uapi/asm/byteorder.h
+++ b/arch/score/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_BYTEORDER_H
 #define _ASM_SCORE_BYTEORDER_H
 
diff --git a/arch/score/include/uapi/asm/errno.h b/arch/score/include/uapi/asm/errno.h
index 29ff39d5ab47..1b914865714f 100644
--- a/arch/score/include/uapi/asm/errno.h
+++ b/arch/score/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_ERRNO_H
 #define _ASM_SCORE_ERRNO_H
 
diff --git a/arch/score/include/uapi/asm/fcntl.h b/arch/score/include/uapi/asm/fcntl.h
index 03968a3103a4..9c5053b87c66 100644
--- a/arch/score/include/uapi/asm/fcntl.h
+++ b/arch/score/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_FCNTL_H
 #define _ASM_SCORE_FCNTL_H
 
diff --git a/arch/score/include/uapi/asm/ioctl.h b/arch/score/include/uapi/asm/ioctl.h
index a351d2194bfd..d6cb6dc33d5f 100644
--- a/arch/score/include/uapi/asm/ioctl.h
+++ b/arch/score/include/uapi/asm/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_IOCTL_H
 #define _ASM_SCORE_IOCTL_H
 
diff --git a/arch/score/include/uapi/asm/ioctls.h b/arch/score/include/uapi/asm/ioctls.h
index ed01d2b9aeab..b93b011f02aa 100644
--- a/arch/score/include/uapi/asm/ioctls.h
+++ b/arch/score/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_IOCTLS_H
 #define _ASM_SCORE_IOCTLS_H
 
diff --git a/arch/score/include/uapi/asm/ipcbuf.h b/arch/score/include/uapi/asm/ipcbuf.h
index e082ceff1818..195ee525308d 100644
--- a/arch/score/include/uapi/asm/ipcbuf.h
+++ b/arch/score/include/uapi/asm/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_IPCBUF_H
 #define _ASM_SCORE_IPCBUF_H
 
diff --git a/arch/score/include/uapi/asm/kvm_para.h b/arch/score/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/score/include/uapi/asm/kvm_para.h
+++ b/arch/score/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/score/include/uapi/asm/mman.h b/arch/score/include/uapi/asm/mman.h
index 84d85ddfed8d..b22b83809432 100644
--- a/arch/score/include/uapi/asm/mman.h
+++ b/arch/score/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_MMAN_H
 #define _ASM_SCORE_MMAN_H
 
diff --git a/arch/score/include/uapi/asm/msgbuf.h b/arch/score/include/uapi/asm/msgbuf.h
index 7506721e29fa..b05a238756ab 100644
--- a/arch/score/include/uapi/asm/msgbuf.h
+++ b/arch/score/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_MSGBUF_H
 #define _ASM_SCORE_MSGBUF_H
 
diff --git a/arch/score/include/uapi/asm/param.h b/arch/score/include/uapi/asm/param.h
index 916b8690b6aa..ce09e2632681 100644
--- a/arch/score/include/uapi/asm/param.h
+++ b/arch/score/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_PARAM_H
 #define _ASM_SCORE_PARAM_H
 
diff --git a/arch/score/include/uapi/asm/poll.h b/arch/score/include/uapi/asm/poll.h
index 18532db02861..c636b85843cd 100644
--- a/arch/score/include/uapi/asm/poll.h
+++ b/arch/score/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_POLL_H
 #define _ASM_SCORE_POLL_H
 
diff --git a/arch/score/include/uapi/asm/posix_types.h b/arch/score/include/uapi/asm/posix_types.h
index b88acf80048a..63200d56a4a9 100644
--- a/arch/score/include/uapi/asm/posix_types.h
+++ b/arch/score/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_POSIX_TYPES_H
 #define _ASM_SCORE_POSIX_TYPES_H
 
diff --git a/arch/score/include/uapi/asm/ptrace.h b/arch/score/include/uapi/asm/ptrace.h
index 5c5e794058be..e8bd4923f96e 100644
--- a/arch/score/include/uapi/asm/ptrace.h
+++ b/arch/score/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_SCORE_PTRACE_H
 #define _UAPI_ASM_SCORE_PTRACE_H
 
diff --git a/arch/score/include/uapi/asm/resource.h b/arch/score/include/uapi/asm/resource.h
index 9ce22bc7b475..df3fb9c942c4 100644
--- a/arch/score/include/uapi/asm/resource.h
+++ b/arch/score/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_RESOURCE_H
 #define _ASM_SCORE_RESOURCE_H
 
diff --git a/arch/score/include/uapi/asm/sembuf.h b/arch/score/include/uapi/asm/sembuf.h
index dae5e835ce9e..c16e7a94725d 100644
--- a/arch/score/include/uapi/asm/sembuf.h
+++ b/arch/score/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SEMBUF_H
 #define _ASM_SCORE_SEMBUF_H
 
diff --git a/arch/score/include/uapi/asm/setup.h b/arch/score/include/uapi/asm/setup.h
index ab9dbdb59bba..dee58323847e 100644
--- a/arch/score/include/uapi/asm/setup.h
+++ b/arch/score/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_SCORE_SETUP_H
 #define _UAPI_ASM_SCORE_SETUP_H
 
diff --git a/arch/score/include/uapi/asm/shmbuf.h b/arch/score/include/uapi/asm/shmbuf.h
index c85b2429ba21..f38acfe733cd 100644
--- a/arch/score/include/uapi/asm/shmbuf.h
+++ b/arch/score/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SHMBUF_H
 #define _ASM_SCORE_SHMBUF_H
 
diff --git a/arch/score/include/uapi/asm/sigcontext.h b/arch/score/include/uapi/asm/sigcontext.h
index 5ffda39ddb90..2b0cd93a71f6 100644
--- a/arch/score/include/uapi/asm/sigcontext.h
+++ b/arch/score/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SIGCONTEXT_H
 #define _ASM_SCORE_SIGCONTEXT_H
 
diff --git a/arch/score/include/uapi/asm/signal.h b/arch/score/include/uapi/asm/signal.h
index 2605bc06b64f..7fb694972302 100644
--- a/arch/score/include/uapi/asm/signal.h
+++ b/arch/score/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SIGNAL_H
 #define _ASM_SCORE_SIGNAL_H
 
diff --git a/arch/score/include/uapi/asm/socket.h b/arch/score/include/uapi/asm/socket.h
index 612a70e385ba..f76ba1f72354 100644
--- a/arch/score/include/uapi/asm/socket.h
+++ b/arch/score/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SOCKET_H
 #define _ASM_SCORE_SOCKET_H
 
diff --git a/arch/score/include/uapi/asm/sockios.h b/arch/score/include/uapi/asm/sockios.h
index ba8256480189..d0af8ce4373b 100644
--- a/arch/score/include/uapi/asm/sockios.h
+++ b/arch/score/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SOCKIOS_H
 #define _ASM_SCORE_SOCKIOS_H
 
diff --git a/arch/score/include/uapi/asm/stat.h b/arch/score/include/uapi/asm/stat.h
index 5037055500a2..669b69f764df 100644
--- a/arch/score/include/uapi/asm/stat.h
+++ b/arch/score/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_STAT_H
 #define _ASM_SCORE_STAT_H
 
diff --git a/arch/score/include/uapi/asm/statfs.h b/arch/score/include/uapi/asm/statfs.h
index 36e41004e996..bb92b3e5525d 100644
--- a/arch/score/include/uapi/asm/statfs.h
+++ b/arch/score/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_STATFS_H
 #define _ASM_SCORE_STATFS_H
 
diff --git a/arch/score/include/uapi/asm/swab.h b/arch/score/include/uapi/asm/swab.h
index fadc3cc6d8a2..52b0927282b1 100644
--- a/arch/score/include/uapi/asm/swab.h
+++ b/arch/score/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_SWAB_H
 #define _ASM_SCORE_SWAB_H
 
diff --git a/arch/score/include/uapi/asm/termbits.h b/arch/score/include/uapi/asm/termbits.h
index 9a95c1412437..4a6f5511cd56 100644
--- a/arch/score/include/uapi/asm/termbits.h
+++ b/arch/score/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_TERMBITS_H
 #define _ASM_SCORE_TERMBITS_H
 
diff --git a/arch/score/include/uapi/asm/termios.h b/arch/score/include/uapi/asm/termios.h
index 40984e811ad6..fabb598ecfa3 100644
--- a/arch/score/include/uapi/asm/termios.h
+++ b/arch/score/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_TERMIOS_H
 #define _ASM_SCORE_TERMIOS_H
 
diff --git a/arch/score/include/uapi/asm/types.h b/arch/score/include/uapi/asm/types.h
index 2140032778ee..8515287f412a 100644
--- a/arch/score/include/uapi/asm/types.h
+++ b/arch/score/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_TYPES_H
 #define _ASM_SCORE_TYPES_H
 
diff --git a/arch/score/include/uapi/asm/unistd.h b/arch/score/include/uapi/asm/unistd.h
index d4008c339e89..04da47bd3d46 100644
--- a/arch/score/include/uapi/asm/unistd.h
+++ b/arch/score/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #define __ARCH_HAVE_MMU
 
 #define __ARCH_WANT_RENAMEAT
diff --git a/arch/score/kernel/Makefile b/arch/score/kernel/Makefile
index fb1802b3f542..42def8cff873 100644
--- a/arch/score/kernel/Makefile
+++ b/arch/score/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SCORE kernel.
 #
diff --git a/arch/score/kernel/sys_call_table.c b/arch/score/kernel/sys_call_table.c
index 287369b88c43..9e6ae793e690 100644
--- a/arch/score/kernel/sys_call_table.c
+++ b/arch/score/kernel/sys_call_table.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/syscalls.h>
 #include <linux/signal.h>
 #include <linux/unistd.h>
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 640a85925060..97fe29316476 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config SUPERH
 	def_bool y
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
diff --git a/arch/sh/Kconfig.cpu b/arch/sh/Kconfig.cpu
index 05b518e90cf7..4a4edc7e03d4 100644
--- a/arch/sh/Kconfig.cpu
+++ b/arch/sh/Kconfig.cpu
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Processor features"
 
 choice
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index 5f2bb4242c0f..d0767672640d 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
index 3554fcaa023b..6394b4f0a69b 100644
--- a/arch/sh/boards/Kconfig
+++ b/arch/sh/boards/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Board support"
 
 config SOLUTION_ENGINE
diff --git a/arch/sh/boards/Makefile b/arch/sh/boards/Makefile
index cea300362035..4002a22a7c40 100644
--- a/arch/sh/boards/Makefile
+++ b/arch/sh/boards/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Specific board support, not covered by a mach group.
 #
diff --git a/arch/sh/boards/board-edosk7705.c b/arch/sh/boards/board-edosk7705.c
index 5e24c17bbdad..67a8803eb3f9 100644
--- a/arch/sh/boards/board-edosk7705.c
+++ b/arch/sh/boards/board-edosk7705.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/boards/renesas/edosk7705/setup.c
  *
diff --git a/arch/sh/boards/board-polaris.c b/arch/sh/boards/board-polaris.c
index 37a08d094727..3de7bac01903 100644
--- a/arch/sh/boards/board-polaris.c
+++ b/arch/sh/boards/board-polaris.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * June 2006 Steve Glendinning <steve.glendinning@shawell.net>
  *
diff --git a/arch/sh/boards/board-secureedge5410.c b/arch/sh/boards/board-secureedge5410.c
index 97ec67ffec2b..603a82325c65 100644
--- a/arch/sh/boards/board-secureedge5410.c
+++ b/arch/sh/boards/board-secureedge5410.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2002  David McCullough <davidm@snapgear.com>
  * Copyright (C) 2003  Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/boards/board-sh2007.c b/arch/sh/boards/board-sh2007.c
index 1980bb7e5780..ef9c87deeb08 100644
--- a/arch/sh/boards/board-sh2007.c
+++ b/arch/sh/boards/board-sh2007.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SH-2007 board support.
  *
diff --git a/arch/sh/boards/board-shmin.c b/arch/sh/boards/board-shmin.c
index 325bed53b87e..83296c0b75c4 100644
--- a/arch/sh/boards/board-shmin.c
+++ b/arch/sh/boards/board-shmin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/boards/shmin/setup.c
  *
diff --git a/arch/sh/boards/mach-highlander/Kconfig b/arch/sh/boards/mach-highlander/Kconfig
index 42f5589b4bf3..b0abd03cac4e 100644
--- a/arch/sh/boards/mach-highlander/Kconfig
+++ b/arch/sh/boards/mach-highlander/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if SH_HIGHLANDER
 
 choice
diff --git a/arch/sh/boards/mach-highlander/Makefile b/arch/sh/boards/mach-highlander/Makefile
index d93aaf880134..880ed68138b0 100644
--- a/arch/sh/boards/mach-highlander/Makefile
+++ b/arch/sh/boards/mach-highlander/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Highlander specific parts of the kernel
 #
diff --git a/arch/sh/boards/mach-migor/Kconfig b/arch/sh/boards/mach-migor/Kconfig
index a7b3b728ec3c..fb64a10e2170 100644
--- a/arch/sh/boards/mach-migor/Kconfig
+++ b/arch/sh/boards/mach-migor/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if SH_MIGOR
 
 choice
diff --git a/arch/sh/boards/mach-r2d/Kconfig b/arch/sh/boards/mach-r2d/Kconfig
index 8122a9667fc9..21770e668de2 100644
--- a/arch/sh/boards/mach-r2d/Kconfig
+++ b/arch/sh/boards/mach-r2d/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if SH_RTS7751R2D
 
 menu "RTS7751R2D Board Revision"
diff --git a/arch/sh/boards/mach-r2d/irq.c b/arch/sh/boards/mach-r2d/irq.c
index 574f009c3c31..e34f81e9ae81 100644
--- a/arch/sh/boards/mach-r2d/irq.c
+++ b/arch/sh/boards/mach-r2d/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/renesas/rts7751r2d/irq.c
  *
diff --git a/arch/sh/boards/mach-rsk/Kconfig b/arch/sh/boards/mach-rsk/Kconfig
index 0b9b2c4952c1..f0299bc4416f 100644
--- a/arch/sh/boards/mach-rsk/Kconfig
+++ b/arch/sh/boards/mach-rsk/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if SH_RSK
 
 choice
diff --git a/arch/sh/boards/mach-sdk7780/Kconfig b/arch/sh/boards/mach-sdk7780/Kconfig
index 065f1df09bf1..d4392efd2f74 100644
--- a/arch/sh/boards/mach-sdk7780/Kconfig
+++ b/arch/sh/boards/mach-sdk7780/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if SH_SDK7780
 
 choice
diff --git a/arch/sh/boards/mach-se/7206/irq.c b/arch/sh/boards/mach-se/7206/irq.c
index 0db058e709e9..2b15370829ae 100644
--- a/arch/sh/boards/mach-se/7206/irq.c
+++ b/arch/sh/boards/mach-se/7206/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/se/7206/irq.c
  *
diff --git a/arch/sh/boards/mach-se/7206/setup.c b/arch/sh/boards/mach-se/7206/setup.c
index 68883ec95682..dc55d3a69665 100644
--- a/arch/sh/boards/mach-se/7206/setup.c
+++ b/arch/sh/boards/mach-se/7206/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  * linux/arch/sh/boards/se/7206/setup.c
diff --git a/arch/sh/boards/mach-se/7343/setup.c b/arch/sh/boards/mach-se/7343/setup.c
index 8ce4f2a202a8..fe0e550601a2 100644
--- a/arch/sh/boards/mach-se/7343/setup.c
+++ b/arch/sh/boards/mach-se/7343/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/mtd/physmap.h>
diff --git a/arch/sh/boards/mach-se/770x/irq.c b/arch/sh/boards/mach-se/770x/irq.c
index 1028c17b81bc..66e2c8aa0b69 100644
--- a/arch/sh/boards/mach-se/770x/irq.c
+++ b/arch/sh/boards/mach-se/770x/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/se/770x/irq.c
  *
diff --git a/arch/sh/boards/mach-se/770x/setup.c b/arch/sh/boards/mach-se/770x/setup.c
index 658326f44df8..77c35350ee77 100644
--- a/arch/sh/boards/mach-se/770x/setup.c
+++ b/arch/sh/boards/mach-se/770x/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/se/770x/setup.c
  *
diff --git a/arch/sh/boards/mach-se/7751/irq.c b/arch/sh/boards/mach-se/7751/irq.c
index 5c9847ea1e7c..dcefe58d8753 100644
--- a/arch/sh/boards/mach-se/7751/irq.c
+++ b/arch/sh/boards/mach-se/7751/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/se/7751/irq.c
  *
diff --git a/arch/sh/boards/mach-se/7751/setup.c b/arch/sh/boards/mach-se/7751/setup.c
index 820f4e7ba0d2..4c480605557f 100644
--- a/arch/sh/boards/mach-se/7751/setup.c
+++ b/arch/sh/boards/mach-se/7751/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/se/7751/setup.c
  *
diff --git a/arch/sh/boards/mach-se/Makefile b/arch/sh/boards/mach-se/Makefile
index b537e238c6bc..8f69fc147c73 100644
--- a/arch/sh/boards/mach-se/Makefile
+++ b/arch/sh/boards/mach-se/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SH_7619_SOLUTION_ENGINE)	+= board-se7619.o
 
 obj-$(CONFIG_SH_SOLUTION_ENGINE)	+= 770x/
diff --git a/arch/sh/boards/mach-se/board-se7619.c b/arch/sh/boards/mach-se/board-se7619.c
index 958bcd7aacc5..4431da64a56f 100644
--- a/arch/sh/boards/mach-se/board-se7619.c
+++ b/arch/sh/boards/mach-se/board-se7619.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/boards/se/7619/setup.c
  *
diff --git a/arch/sh/boards/mach-sh03/rtc.c b/arch/sh/boards/mach-sh03/rtc.c
index f83ac7995d0f..dc3d50e3b7a2 100644
--- a/arch/sh/boards/mach-sh03/rtc.c
+++ b/arch/sh/boards/mach-sh03/rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/sh03/rtc.c -- CTP/PCI-SH03 on-chip RTC support
  *
diff --git a/arch/sh/boards/mach-sh03/setup.c b/arch/sh/boards/mach-sh03/setup.c
index f582dab59343..85e7059a77e9 100644
--- a/arch/sh/boards/mach-sh03/setup.c
+++ b/arch/sh/boards/mach-sh03/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/boards/sh03/setup.c
  *
diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
index c4c47ea9fa94..f5e1bd779789 100644
--- a/arch/sh/boot/compressed/Makefile
+++ b/arch/sh/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/sh/boot/compressed/Makefile
 #
diff --git a/arch/sh/boot/compressed/cache.c b/arch/sh/boot/compressed/cache.c
index d0b77b68a4d0..31e04ff4841e 100644
--- a/arch/sh/boot/compressed/cache.c
+++ b/arch/sh/boot/compressed/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 int cache_control(unsigned int command)
 {
 	volatile unsigned int *p = (volatile unsigned int *) 0x80000000;
diff --git a/arch/sh/boot/compressed/head_32.S b/arch/sh/boot/compressed/head_32.S
index 3e150326f1fd..7bb168133dbb 100644
--- a/arch/sh/boot/compressed/head_32.S
+++ b/arch/sh/boot/compressed/head_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/sh/boot/compressed/head.S
  *
diff --git a/arch/sh/boot/compressed/misc.c b/arch/sh/boot/compressed/misc.c
index ae1dfdb0013b..f2d9d3079d4e 100644
--- a/arch/sh/boot/compressed/misc.c
+++ b/arch/sh/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/boot/compressed/misc.c
  *
diff --git a/arch/sh/boot/dts/j2_mimas_v2.dts b/arch/sh/boot/dts/j2_mimas_v2.dts
index 880de75360b3..9f4742fab329 100644
--- a/arch/sh/boot/dts/j2_mimas_v2.dts
+++ b/arch/sh/boot/dts/j2_mimas_v2.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 / {
diff --git a/arch/sh/boot/romimage/Makefile b/arch/sh/boot/romimage/Makefile
index 43c41191de5d..c7c8be58400c 100644
--- a/arch/sh/boot/romimage/Makefile
+++ b/arch/sh/boot/romimage/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/sh/boot/romimage/Makefile
 #
diff --git a/arch/sh/boot/romimage/head.S b/arch/sh/boot/romimage/head.S
index 4671d1b82150..81a0652a3dff 100644
--- a/arch/sh/boot/romimage/head.S
+++ b/arch/sh/boot/romimage/head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/sh/boot/romimage/head.S
  *
diff --git a/arch/sh/cchips/Kconfig b/arch/sh/cchips/Kconfig
index a5ab2eccdaa6..6be5ddec14d3 100644
--- a/arch/sh/cchips/Kconfig
+++ b/arch/sh/cchips/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Companion Chips"
 
 config HD6446X_SERIES
diff --git a/arch/sh/cchips/hd6446x/hd64461.c b/arch/sh/cchips/hd6446x/hd64461.c
index 8180092502f7..f3fba967445a 100644
--- a/arch/sh/cchips/hd6446x/hd64461.c
+++ b/arch/sh/cchips/hd6446x/hd64461.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copyright (C) 2000 YAEGASHI Takeshi
  *	Hitachi HD64461 companion chip support
diff --git a/arch/sh/drivers/Kconfig b/arch/sh/drivers/Kconfig
index 420c6b2f33a5..80a45ad2852f 100644
--- a/arch/sh/drivers/Kconfig
+++ b/arch/sh/drivers/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 source "arch/sh/drivers/dma/Kconfig"
 source "arch/sh/cchips/Kconfig"
 
diff --git a/arch/sh/drivers/Makefile b/arch/sh/drivers/Makefile
index e13f06bebd92..3e93b434e604 100644
--- a/arch/sh/drivers/Makefile
+++ b/arch/sh/drivers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux SuperH-specific device drivers.
 #
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig
index 78bc97b1d027..d0de378beefe 100644
--- a/arch/sh/drivers/dma/Kconfig
+++ b/arch/sh/drivers/dma/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "DMA support"
 
 
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 82f0a335fd19..947bfe8bb0a7 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PCI specific kernel interface routines under Linux.
 #
diff --git a/arch/sh/drivers/pci/common.c b/arch/sh/drivers/pci/common.c
index dbf138199871..cae707f3472d 100644
--- a/arch/sh/drivers/pci/common.c
+++ b/arch/sh/drivers/pci/common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/timer.h>
diff --git a/arch/sh/drivers/pci/fixups-cayman.c b/arch/sh/drivers/pci/fixups-cayman.c
index 32467884d6f7..c797bfbe2e98 100644
--- a/arch/sh/drivers/pci/fixups-cayman.c
+++ b/arch/sh/drivers/pci/fixups-cayman.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/pci.h>
diff --git a/arch/sh/drivers/pci/fixups-se7751.c b/arch/sh/drivers/pci/fixups-se7751.c
index 1cb8d0ac4fdb..608f6521ceff 100644
--- a/arch/sh/drivers/pci/fixups-se7751.c
+++ b/arch/sh/drivers/pci/fixups-se7751.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/init.h>
diff --git a/arch/sh/drivers/pci/fixups-sh03.c b/arch/sh/drivers/pci/fixups-sh03.c
index 55ac1ba2c74f..7ec4a74ab12c 100644
--- a/arch/sh/drivers/pci/fixups-sh03.c
+++ b/arch/sh/drivers/pci/fixups-sh03.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/types.h>
diff --git a/arch/sh/drivers/pci/pci-sh4.h b/arch/sh/drivers/pci/pci-sh4.h
index 0288efc17ff3..1543c50b6503 100644
--- a/arch/sh/drivers/pci/pci-sh4.h
+++ b/arch/sh/drivers/pci/pci-sh4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PCI_SH4_H
 #define __PCI_SH4_H
 
diff --git a/arch/sh/include/asm/adc.h b/arch/sh/include/asm/adc.h
index 48824c1fab80..99ec66849559 100644
--- a/arch/sh/include/asm/adc.h
+++ b/arch/sh/include/asm/adc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ADC_H
 #define __ASM_ADC_H
 #ifdef __KERNEL__
diff --git a/arch/sh/include/asm/alignment.h b/arch/sh/include/asm/alignment.h
index b12efecf5294..4f3e715b8c26 100644
--- a/arch/sh/include/asm/alignment.h
+++ b/arch/sh/include/asm/alignment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ALIGNMENT_H
 #define __ASM_SH_ALIGNMENT_H
 
diff --git a/arch/sh/include/asm/atomic-grb.h b/arch/sh/include/asm/atomic-grb.h
index d755e96c3064..aace62d42288 100644
--- a/arch/sh/include/asm/atomic-grb.h
+++ b/arch/sh/include/asm/atomic-grb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ATOMIC_GRB_H
 #define __ASM_SH_ATOMIC_GRB_H
 
diff --git a/arch/sh/include/asm/atomic-irq.h b/arch/sh/include/asm/atomic-irq.h
index 8e2da5fa0178..ee523bd2120f 100644
--- a/arch/sh/include/asm/atomic-irq.h
+++ b/arch/sh/include/asm/atomic-irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ATOMIC_IRQ_H
 #define __ASM_SH_ATOMIC_IRQ_H
 
diff --git a/arch/sh/include/asm/atomic-llsc.h b/arch/sh/include/asm/atomic-llsc.h
index 1d159ce50f5a..1d06e4d288dc 100644
--- a/arch/sh/include/asm/atomic-llsc.h
+++ b/arch/sh/include/asm/atomic-llsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ATOMIC_LLSC_H
 #define __ASM_SH_ATOMIC_LLSC_H
 
diff --git a/arch/sh/include/asm/atomic.h b/arch/sh/include/asm/atomic.h
index 8a7bd80c8b33..0fd0099f43cc 100644
--- a/arch/sh/include/asm/atomic.h
+++ b/arch/sh/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ATOMIC_H
 #define __ASM_SH_ATOMIC_H
 
diff --git a/arch/sh/include/asm/barrier.h b/arch/sh/include/asm/barrier.h
index 3c30b6e166b6..66faae19d254 100644
--- a/arch/sh/include/asm/barrier.h
+++ b/arch/sh/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999, 2000  Niibe Yutaka  &  Kaz Kojima
  * Copyright (C) 2002 Paul Mundt
diff --git a/arch/sh/include/asm/bitops-cas.h b/arch/sh/include/asm/bitops-cas.h
index 88f793c04d3c..ba517b3f24da 100644
--- a/arch/sh/include/asm/bitops-cas.h
+++ b/arch/sh/include/asm/bitops-cas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BITOPS_CAS_H
 #define __ASM_SH_BITOPS_CAS_H
 
diff --git a/arch/sh/include/asm/bitops-grb.h b/arch/sh/include/asm/bitops-grb.h
index e73af33acbf4..75b5980399d4 100644
--- a/arch/sh/include/asm/bitops-grb.h
+++ b/arch/sh/include/asm/bitops-grb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BITOPS_GRB_H
 #define __ASM_SH_BITOPS_GRB_H
 
diff --git a/arch/sh/include/asm/bitops-llsc.h b/arch/sh/include/asm/bitops-llsc.h
index d8328be06191..47036845fc68 100644
--- a/arch/sh/include/asm/bitops-llsc.h
+++ b/arch/sh/include/asm/bitops-llsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BITOPS_LLSC_H
 #define __ASM_SH_BITOPS_LLSC_H
 
diff --git a/arch/sh/include/asm/bitops-op32.h b/arch/sh/include/asm/bitops-op32.h
index f0ae7e9218e0..466880362ad1 100644
--- a/arch/sh/include/asm/bitops-op32.h
+++ b/arch/sh/include/asm/bitops-op32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BITOPS_OP32_H
 #define __ASM_SH_BITOPS_OP32_H
 
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index a8699d60a8c4..8c3578288db5 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BITOPS_H
 #define __ASM_SH_BITOPS_H
 
diff --git a/arch/sh/include/asm/bl_bit.h b/arch/sh/include/asm/bl_bit.h
index 06e4163c6746..7e3d81691ad5 100644
--- a/arch/sh/include/asm/bl_bit.h
+++ b/arch/sh/include/asm/bl_bit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BL_BIT_H
 #define __ASM_SH_BL_BIT_H
 
diff --git a/arch/sh/include/asm/bl_bit_32.h b/arch/sh/include/asm/bl_bit_32.h
index fd21eee62149..1f7d225fc604 100644
--- a/arch/sh/include/asm/bl_bit_32.h
+++ b/arch/sh/include/asm/bl_bit_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BL_BIT_32_H
 #define __ASM_SH_BL_BIT_32_H
 
diff --git a/arch/sh/include/asm/bug.h b/arch/sh/include/asm/bug.h
index 5b5086367639..05a485c4fabc 100644
--- a/arch/sh/include/asm/bug.h
+++ b/arch/sh/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BUG_H
 #define __ASM_SH_BUG_H
 
diff --git a/arch/sh/include/asm/bugs.h b/arch/sh/include/asm/bugs.h
index 02a19a1c033a..030df56bfdb2 100644
--- a/arch/sh/include/asm/bugs.h
+++ b/arch/sh/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BUGS_H
 #define __ASM_SH_BUGS_H
 
diff --git a/arch/sh/include/asm/cache.h b/arch/sh/include/asm/cache.h
index ef9e555aafba..2408ac4873aa 100644
--- a/arch/sh/include/asm/cache.h
+++ b/arch/sh/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: cache.h,v 1.6 2004/03/11 18:08:05 lethal Exp $
  *
  * include/asm-sh/cache.h
diff --git a/arch/sh/include/asm/cache_insns.h b/arch/sh/include/asm/cache_insns.h
index 355cb06b7a30..c5a4acdc53f9 100644
--- a/arch/sh/include/asm/cache_insns.h
+++ b/arch/sh/include/asm/cache_insns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CACHE_INSNS_H
 #define __ASM_SH_CACHE_INSNS_H
 
diff --git a/arch/sh/include/asm/cache_insns_32.h b/arch/sh/include/asm/cache_insns_32.h
index b92fe5416092..470880b972cb 100644
--- a/arch/sh/include/asm/cache_insns_32.h
+++ b/arch/sh/include/asm/cache_insns_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CACHE_INSNS_32_H
 #define __ASM_SH_CACHE_INSNS_32_H
 
diff --git a/arch/sh/include/asm/cacheflush.h b/arch/sh/include/asm/cacheflush.h
index 82e1eabeac98..d103ab5a4e4b 100644
--- a/arch/sh/include/asm/cacheflush.h
+++ b/arch/sh/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CACHEFLUSH_H
 #define __ASM_SH_CACHEFLUSH_H
 
diff --git a/arch/sh/include/asm/checksum.h b/arch/sh/include/asm/checksum.h
index 34ae26204524..a460a108969d 100644
--- a/arch/sh/include/asm/checksum.h
+++ b/arch/sh/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_SUPERH32
 # include <asm/checksum_32.h>
 #else
diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index 0390a07e7e3b..b65bc2908e8a 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CLOCK_H
 #define __ASM_SH_CLOCK_H
 
diff --git a/arch/sh/include/asm/cmpxchg-cas.h b/arch/sh/include/asm/cmpxchg-cas.h
index d0d86649e8c1..f508db6eaf31 100644
--- a/arch/sh/include/asm/cmpxchg-cas.h
+++ b/arch/sh/include/asm/cmpxchg-cas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CMPXCHG_CAS_H
 #define __ASM_SH_CMPXCHG_CAS_H
 
diff --git a/arch/sh/include/asm/cmpxchg-grb.h b/arch/sh/include/asm/cmpxchg-grb.h
index 2ed557b31bd9..e12279ea35cf 100644
--- a/arch/sh/include/asm/cmpxchg-grb.h
+++ b/arch/sh/include/asm/cmpxchg-grb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CMPXCHG_GRB_H
 #define __ASM_SH_CMPXCHG_GRB_H
 
diff --git a/arch/sh/include/asm/cmpxchg-irq.h b/arch/sh/include/asm/cmpxchg-irq.h
index f88877257171..07d3e7f08389 100644
--- a/arch/sh/include/asm/cmpxchg-irq.h
+++ b/arch/sh/include/asm/cmpxchg-irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CMPXCHG_IRQ_H
 #define __ASM_SH_CMPXCHG_IRQ_H
 
diff --git a/arch/sh/include/asm/cmpxchg-llsc.h b/arch/sh/include/asm/cmpxchg-llsc.h
index fcfd32271bff..d5270cd297c1 100644
--- a/arch/sh/include/asm/cmpxchg-llsc.h
+++ b/arch/sh/include/asm/cmpxchg-llsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CMPXCHG_LLSC_H
 #define __ASM_SH_CMPXCHG_LLSC_H
 
diff --git a/arch/sh/include/asm/cmpxchg.h b/arch/sh/include/asm/cmpxchg.h
index 3dfe0467a773..e9501d85c278 100644
--- a/arch/sh/include/asm/cmpxchg.h
+++ b/arch/sh/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CMPXCHG_H
 #define __ASM_SH_CMPXCHG_H
 
diff --git a/arch/sh/include/asm/dma-mapping.h b/arch/sh/include/asm/dma-mapping.h
index 9b06be07db4d..68c1536b3aab 100644
--- a/arch/sh/include/asm/dma-mapping.h
+++ b/arch/sh/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_DMA_MAPPING_H
 #define __ASM_SH_DMA_MAPPING_H
 
diff --git a/arch/sh/include/asm/dmabrg.h b/arch/sh/include/asm/dmabrg.h
index c5edba216cf1..69e119cfd711 100644
--- a/arch/sh/include/asm/dmabrg.h
+++ b/arch/sh/include/asm/dmabrg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SH7760 DMABRG (USB/Audio) support
  */
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h
index bf9f44f17c29..5ec8db1ddc20 100644
--- a/arch/sh/include/asm/elf.h
+++ b/arch/sh/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ELF_H
 #define __ASM_SH_ELF_H
 
diff --git a/arch/sh/include/asm/entry-macros.S b/arch/sh/include/asm/entry-macros.S
index cc43a55e1fcf..5ce142d8c5a8 100644
--- a/arch/sh/include/asm/entry-macros.S
+++ b/arch/sh/include/asm/entry-macros.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 ! entry.S macro define
 	
 	.macro	cli
diff --git a/arch/sh/include/asm/extable.h b/arch/sh/include/asm/extable.h
index df2ee2fcb8d3..ed46f8bebb9f 100644
--- a/arch/sh/include/asm/extable.h
+++ b/arch/sh/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_EXTABLE_H
 #define __ASM_SH_EXTABLE_H
 
diff --git a/arch/sh/include/asm/fpu.h b/arch/sh/include/asm/fpu.h
index 50921c7cc3f0..43cfaf929aa7 100644
--- a/arch/sh/include/asm/fpu.h
+++ b/arch/sh/include/asm/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_FPU_H
 #define __ASM_SH_FPU_H
 
diff --git a/arch/sh/include/asm/ftrace.h b/arch/sh/include/asm/ftrace.h
index 1f157b86eaa7..b1c1dc0cc261 100644
--- a/arch/sh/include/asm/ftrace.h
+++ b/arch/sh/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_FTRACE_H
 #define __ASM_SH_FTRACE_H
 
diff --git a/arch/sh/include/asm/futex-cas.h b/arch/sh/include/asm/futex-cas.h
index 267cb7a5f101..ed738e32b5ec 100644
--- a/arch/sh/include/asm/futex-cas.h
+++ b/arch/sh/include/asm/futex-cas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_FUTEX_CAS_H
 #define __ASM_SH_FUTEX_CAS_H
 
diff --git a/arch/sh/include/asm/futex-irq.h b/arch/sh/include/asm/futex-irq.h
index ab01dbee0a82..9bc053242ea0 100644
--- a/arch/sh/include/asm/futex-irq.h
+++ b/arch/sh/include/asm/futex-irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_FUTEX_IRQ_H
 #define __ASM_SH_FUTEX_IRQ_H
 
diff --git a/arch/sh/include/asm/futex-llsc.h b/arch/sh/include/asm/futex-llsc.h
index 23591703bec0..6e1570752bc1 100644
--- a/arch/sh/include/asm/futex-llsc.h
+++ b/arch/sh/include/asm/futex-llsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_FUTEX_LLSC_H
 #define __ASM_SH_FUTEX_LLSC_H
 
diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h
index 8f8cf941a8cd..15bf07bfa96b 100644
--- a/arch/sh/include/asm/futex.h
+++ b/arch/sh/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_FUTEX_H
 #define __ASM_SH_FUTEX_H
 
diff --git a/arch/sh/include/asm/hardirq.h b/arch/sh/include/asm/hardirq.h
index 48b191313a99..edaea3559a23 100644
--- a/arch/sh/include/asm/hardirq.h
+++ b/arch/sh/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HARDIRQ_H
 #define __ASM_SH_HARDIRQ_H
 
diff --git a/arch/sh/include/asm/hd64461.h b/arch/sh/include/asm/hd64461.h
index 977355f0a483..afb24cb034b1 100644
--- a/arch/sh/include/asm/hd64461.h
+++ b/arch/sh/include/asm/hd64461.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HD64461
 #define __ASM_SH_HD64461
 /*
diff --git a/arch/sh/include/asm/heartbeat.h b/arch/sh/include/asm/heartbeat.h
index caaafe5a3ef1..4028ca4058d1 100644
--- a/arch/sh/include/asm/heartbeat.h
+++ b/arch/sh/include/asm/heartbeat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HEARTBEAT_H
 #define __ASM_SH_HEARTBEAT_H
 
diff --git a/arch/sh/include/asm/hugetlb.h b/arch/sh/include/asm/hugetlb.h
index ef489a56fcce..735939c0f513 100644
--- a/arch/sh/include/asm/hugetlb.h
+++ b/arch/sh/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SH_HUGETLB_H
 #define _ASM_SH_HUGETLB_H
 
diff --git a/arch/sh/include/asm/hw_breakpoint.h b/arch/sh/include/asm/hw_breakpoint.h
index ec9ad593c3da..7431c172c0cb 100644
--- a/arch/sh/include/asm/hw_breakpoint.h
+++ b/arch/sh/include/asm/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HW_BREAKPOINT_H
 #define __ASM_SH_HW_BREAKPOINT_H
 
diff --git a/arch/sh/include/asm/hw_irq.h b/arch/sh/include/asm/hw_irq.h
index 693d44184058..ce23e3332f9c 100644
--- a/arch/sh/include/asm/hw_irq.h
+++ b/arch/sh/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HW_IRQ_H
 #define __ASM_SH_HW_IRQ_H
 
diff --git a/arch/sh/include/asm/i2c-sh7760.h b/arch/sh/include/asm/i2c-sh7760.h
index 69fee1239b03..a777f1410a6e 100644
--- a/arch/sh/include/asm/i2c-sh7760.h
+++ b/arch/sh/include/asm/i2c-sh7760.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MMIO/IRQ and platform data for SH7760 I2C channels
  */
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index 3280a6bfa503..98cb8c802b1a 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_IO_H
 #define __ASM_SH_IO_H
 
diff --git a/arch/sh/include/asm/io_generic.h b/arch/sh/include/asm/io_generic.h
index b5f6956f19c8..87ec38f4e532 100644
--- a/arch/sh/include/asm/io_generic.h
+++ b/arch/sh/include/asm/io_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Trivial I/O routine definitions, intentionally meant to be included
  * multiple times. Ugly I/O routine concatenation helpers taken from
diff --git a/arch/sh/include/asm/io_noioport.h b/arch/sh/include/asm/io_noioport.h
index c727e6ddf69e..90d6109f1622 100644
--- a/arch/sh/include/asm/io_noioport.h
+++ b/arch/sh/include/asm/io_noioport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_IO_NOIOPORT_H
 #define __ASM_SH_IO_NOIOPORT_H
 
diff --git a/arch/sh/include/asm/io_trapped.h b/arch/sh/include/asm/io_trapped.h
index 4ab94ef51071..ac01b201d9aa 100644
--- a/arch/sh/include/asm/io_trapped.h
+++ b/arch/sh/include/asm/io_trapped.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_IO_TRAPPED_H
 #define __ASM_SH_IO_TRAPPED_H
 
diff --git a/arch/sh/include/asm/irq.h b/arch/sh/include/asm/irq.h
index 0e4f532e4737..8065a3222e19 100644
--- a/arch/sh/include/asm/irq.h
+++ b/arch/sh/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_IRQ_H
 #define __ASM_SH_IRQ_H
 
diff --git a/arch/sh/include/asm/irqflags.h b/arch/sh/include/asm/irqflags.h
index 43b7608606c3..25f6cfef3f04 100644
--- a/arch/sh/include/asm/irqflags.h
+++ b/arch/sh/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_IRQFLAGS_H
 #define __ASM_SH_IRQFLAGS_H
 
diff --git a/arch/sh/include/asm/kdebug.h b/arch/sh/include/asm/kdebug.h
index 8d6a831e7ba1..5212f5fcd752 100644
--- a/arch/sh/include/asm/kdebug.h
+++ b/arch/sh/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_KDEBUG_H
 #define __ASM_SH_KDEBUG_H
 
diff --git a/arch/sh/include/asm/kexec.h b/arch/sh/include/asm/kexec.h
index ad6ef8a275ee..fd5f331a3912 100644
--- a/arch/sh/include/asm/kexec.h
+++ b/arch/sh/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_KEXEC_H
 #define __ASM_SH_KEXEC_H
 
diff --git a/arch/sh/include/asm/kgdb.h b/arch/sh/include/asm/kgdb.h
index 9e7d2d1b03e0..0d5b840cb289 100644
--- a/arch/sh/include/asm/kgdb.h
+++ b/arch/sh/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_KGDB_H
 #define __ASM_SH_KGDB_H
 
diff --git a/arch/sh/include/asm/kmap_types.h b/arch/sh/include/asm/kmap_types.h
index 5962b08b6dd8..b78107f923dd 100644
--- a/arch/sh/include/asm/kmap_types.h
+++ b/arch/sh/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_KMAP_TYPES_H
 #define __SH_KMAP_TYPES_H
 
diff --git a/arch/sh/include/asm/kprobes.h b/arch/sh/include/asm/kprobes.h
index f0986f9b3844..85d8bcaa8493 100644
--- a/arch/sh/include/asm/kprobes.h
+++ b/arch/sh/include/asm/kprobes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_KPROBES_H
 #define __ASM_SH_KPROBES_H
 
diff --git a/arch/sh/include/asm/linkage.h b/arch/sh/include/asm/linkage.h
index 3565a4f4009f..7c2fa27a43f8 100644
--- a/arch/sh/include/asm/linkage.h
+++ b/arch/sh/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LINKAGE_H
 #define __ASM_LINKAGE_H
 
diff --git a/arch/sh/include/asm/mmu.h b/arch/sh/include/asm/mmu.h
index 56e4418c19b9..172e329fd92d 100644
--- a/arch/sh/include/asm/mmu.h
+++ b/arch/sh/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/sh/include/asm/mmu_context.h b/arch/sh/include/asm/mmu_context.h
index eb6ac3c10c44..2d09650093c7 100644
--- a/arch/sh/include/asm/mmu_context.h
+++ b/arch/sh/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999 Niibe Yutaka
  * Copyright (C) 2003 - 2007 Paul Mundt
diff --git a/arch/sh/include/asm/mmu_context_32.h b/arch/sh/include/asm/mmu_context_32.h
index 10e2e17210d2..71bf12ef1f65 100644
--- a/arch/sh/include/asm/mmu_context_32.h
+++ b/arch/sh/include/asm/mmu_context_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MMU_CONTEXT_32_H
 #define __ASM_SH_MMU_CONTEXT_32_H
 
diff --git a/arch/sh/include/asm/mmzone.h b/arch/sh/include/asm/mmzone.h
index 15a8496960e6..cbaee1d1b673 100644
--- a/arch/sh/include/asm/mmzone.h
+++ b/arch/sh/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MMZONE_H
 #define __ASM_SH_MMZONE_H
 
diff --git a/arch/sh/include/asm/module.h b/arch/sh/include/asm/module.h
index 81300d8b5448..9f38fb35fe96 100644
--- a/arch/sh/include/asm/module.h
+++ b/arch/sh/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SH_MODULE_H
 #define _ASM_SH_MODULE_H
 
diff --git a/arch/sh/include/asm/page.h b/arch/sh/include/asm/page.h
index ceb5201a30ed..5eef8be3e59f 100644
--- a/arch/sh/include/asm/page.h
+++ b/arch/sh/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PAGE_H
 #define __ASM_SH_PAGE_H
 
diff --git a/arch/sh/include/asm/pci.h b/arch/sh/include/asm/pci.h
index 17fa69bc814d..53f7ae6abaa7 100644
--- a/arch/sh/include/asm/pci.h
+++ b/arch/sh/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PCI_H
 #define __ASM_SH_PCI_H
 
diff --git a/arch/sh/include/asm/perf_event.h b/arch/sh/include/asm/perf_event.h
index 14308bed7ea5..468c7ca8bd2e 100644
--- a/arch/sh/include/asm/perf_event.h
+++ b/arch/sh/include/asm/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PERF_EVENT_H
 #define __ASM_SH_PERF_EVENT_H
 
diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index f3f42c84c40f..ed053a359ab7 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PGALLOC_H
 #define __ASM_SH_PGALLOC_H
 
diff --git a/arch/sh/include/asm/pgtable-2level.h b/arch/sh/include/asm/pgtable-2level.h
index f75cf4387257..bf1eb51c3ee5 100644
--- a/arch/sh/include/asm/pgtable-2level.h
+++ b/arch/sh/include/asm/pgtable-2level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PGTABLE_2LEVEL_H
 #define __ASM_SH_PGTABLE_2LEVEL_H
 
diff --git a/arch/sh/include/asm/pgtable-3level.h b/arch/sh/include/asm/pgtable-3level.h
index 9b1e776eca31..7d8587eb65ff 100644
--- a/arch/sh/include/asm/pgtable-3level.h
+++ b/arch/sh/include/asm/pgtable-3level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PGTABLE_3LEVEL_H
 #define __ASM_SH_PGTABLE_3LEVEL_H
 
diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h
index c646e563abce..29274f0e428e 100644
--- a/arch/sh/include/asm/pgtable_32.h
+++ b/arch/sh/include/asm/pgtable_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PGTABLE_32_H
 #define __ASM_SH_PGTABLE_32_H
 
diff --git a/arch/sh/include/asm/posix_types.h b/arch/sh/include/asm/posix_types.h
index 1aa781079b1e..0d670fd94fe7 100644
--- a/arch/sh/include/asm/posix_types.h
+++ b/arch/sh/include/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 # ifdef CONFIG_SUPERH32
 #  include <asm/posix_types_32.h>
 # else
diff --git a/arch/sh/include/asm/processor.h b/arch/sh/include/asm/processor.h
index 5addd69f70ef..6fbf8c80e498 100644
--- a/arch/sh/include/asm/processor.h
+++ b/arch/sh/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PROCESSOR_H
 #define __ASM_SH_PROCESSOR_H
 
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
index 18e0377f72bb..95100d8a0b7b 100644
--- a/arch/sh/include/asm/processor_32.h
+++ b/arch/sh/include/asm/processor_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-sh/processor.h
  *
@@ -136,10 +137,6 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_pc, unsigned lo
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
 
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm)	do { } while(0)
-#define release_segments(mm)	do { } while(0)
-
 /*
  * FPU lazy state save handling.
  */
diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h
index eedd4f625d07..777a16318aff 100644
--- a/arch/sh/include/asm/processor_64.h
+++ b/arch/sh/include/asm/processor_64.h
@@ -170,10 +170,6 @@ struct mm_struct;
 /* Free all resources held by a thread. */
 extern void release_thread(struct task_struct *);
 
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm)	do { } while (0)
-#define release_segments(mm)	do { } while (0)
-#define forget_segments()	do { } while (0)
 /*
  * FPU lazy state save handling.
  */
diff --git a/arch/sh/include/asm/ptrace.h b/arch/sh/include/asm/ptrace.h
index 2506c7db76b7..9143c7babcbe 100644
--- a/arch/sh/include/asm/ptrace.h
+++ b/arch/sh/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1999, 2000  Niibe Yutaka
  */
diff --git a/arch/sh/include/asm/ptrace_32.h b/arch/sh/include/asm/ptrace_32.h
index 1dd4480c5363..5f37ad7c6065 100644
--- a/arch/sh/include/asm/ptrace_32.h
+++ b/arch/sh/include/asm/ptrace_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PTRACE_32_H
 #define __ASM_SH_PTRACE_32_H
 
diff --git a/arch/sh/include/asm/ptrace_64.h b/arch/sh/include/asm/ptrace_64.h
index 97f4b5660f2c..6ee08229b433 100644
--- a/arch/sh/include/asm/ptrace_64.h
+++ b/arch/sh/include/asm/ptrace_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PTRACE_64_H
 #define __ASM_SH_PTRACE_64_H
 
diff --git a/arch/sh/include/asm/push-switch.h b/arch/sh/include/asm/push-switch.h
index 4903f9e52dd8..c5f072572fd1 100644
--- a/arch/sh/include/asm/push-switch.h
+++ b/arch/sh/include/asm/push-switch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_PUSH_SWITCH_H
 #define __ASM_SH_PUSH_SWITCH_H
 
diff --git a/arch/sh/include/asm/reboot.h b/arch/sh/include/asm/reboot.h
index b3da0c63fc3d..5c445c90df14 100644
--- a/arch/sh/include/asm/reboot.h
+++ b/arch/sh/include/asm/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_REBOOT_H
 #define __ASM_SH_REBOOT_H
 
diff --git a/arch/sh/include/asm/romimage-macros.h b/arch/sh/include/asm/romimage-macros.h
index ae17a150bb58..f9352ee7c21b 100644
--- a/arch/sh/include/asm/romimage-macros.h
+++ b/arch/sh/include/asm/romimage-macros.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ROMIMAGE_MACRO_H
 #define __ROMIMAGE_MACRO_H
 
diff --git a/arch/sh/include/asm/rtc.h b/arch/sh/include/asm/rtc.h
index f7b010d48af7..c63555ee1255 100644
--- a/arch/sh/include/asm/rtc.h
+++ b/arch/sh/include/asm/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_RTC_H
 #define _ASM_RTC_H
 
diff --git a/arch/sh/include/asm/seccomp.h b/arch/sh/include/asm/seccomp.h
index 3280ed3802ef..54111e4d32b8 100644
--- a/arch/sh/include/asm/seccomp.h
+++ b/arch/sh/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SECCOMP_H
 
 #include <linux/unistd.h>
diff --git a/arch/sh/include/asm/sections.h b/arch/sh/include/asm/sections.h
index 7a99e6af6372..8edb824049b9 100644
--- a/arch/sh/include/asm/sections.h
+++ b/arch/sh/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SECTIONS_H
 #define __ASM_SH_SECTIONS_H
 
diff --git a/arch/sh/include/asm/segment.h b/arch/sh/include/asm/segment.h
index ff795d3a6909..101c13c0c6ad 100644
--- a/arch/sh/include/asm/segment.h
+++ b/arch/sh/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SEGMENT_H
 #define __ASM_SH_SEGMENT_H
 
diff --git a/arch/sh/include/asm/setup.h b/arch/sh/include/asm/setup.h
index 99238108e7a5..fc807011187f 100644
--- a/arch/sh/include/asm/setup.h
+++ b/arch/sh/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SH_SETUP_H
 #define _SH_SETUP_H
 
diff --git a/arch/sh/include/asm/sh7760fb.h b/arch/sh/include/asm/sh7760fb.h
index 8767f61aceca..2d9433d75402 100644
--- a/arch/sh/include/asm/sh7760fb.h
+++ b/arch/sh/include/asm/sh7760fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sh7760fb.h -- platform data for SH7760/SH7763 LCDC framebuffer driver.
  *
diff --git a/arch/sh/include/asm/sh_bios.h b/arch/sh/include/asm/sh_bios.h
index 95714c28422b..ab693b982442 100644
--- a/arch/sh/include/asm/sh_bios.h
+++ b/arch/sh/include/asm/sh_bios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_BIOS_H
 #define __ASM_SH_BIOS_H
 
diff --git a/arch/sh/include/asm/smc37c93x.h b/arch/sh/include/asm/smc37c93x.h
index 585da2a8fc45..f054c30a171a 100644
--- a/arch/sh/include/asm/smc37c93x.h
+++ b/arch/sh/include/asm/smc37c93x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SMC37C93X_H
 #define __ASM_SH_SMC37C93X_H
 
diff --git a/arch/sh/include/asm/smp-ops.h b/arch/sh/include/asm/smp-ops.h
index c590f76856f1..e27702130eb6 100644
--- a/arch/sh/include/asm/smp-ops.h
+++ b/arch/sh/include/asm/smp-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SMP_OPS_H
 #define __ASM_SH_SMP_OPS_H
 
diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h
index c9f8bbdb1bf8..1a0d7cf71c10 100644
--- a/arch/sh/include/asm/smp.h
+++ b/arch/sh/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SMP_H
 #define __ASM_SH_SMP_H
 
diff --git a/arch/sh/include/asm/sparsemem.h b/arch/sh/include/asm/sparsemem.h
index 547a540b6667..4eb899751e45 100644
--- a/arch/sh/include/asm/sparsemem.h
+++ b/arch/sh/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SPARSEMEM_H
 #define __ASM_SH_SPARSEMEM_H
 
diff --git a/arch/sh/include/asm/spi.h b/arch/sh/include/asm/spi.h
index e96f5b0953c8..6780753bd249 100644
--- a/arch/sh/include/asm/spi.h
+++ b/arch/sh/include/asm/spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPI_H__
 #define __ASM_SPI_H__
 
diff --git a/arch/sh/include/asm/spinlock-cas.h b/arch/sh/include/asm/spinlock-cas.h
index 5ed7dbbd94ff..270ee4d3e25b 100644
--- a/arch/sh/include/asm/spinlock-cas.h
+++ b/arch/sh/include/asm/spinlock-cas.h
@@ -27,7 +27,6 @@ static inline unsigned __sl_cas(volatile unsigned *p, unsigned old, unsigned new
  */
 
 #define arch_spin_is_locked(x)		((x)->lock <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
@@ -53,18 +52,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
  * read-locks.
  */
 
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(x)	((x)->lock > 0)
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(x)	((x)->lock == RW_LOCK_BIAS)
-
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	unsigned old;
@@ -102,11 +89,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 	return __sl_cas(&rw->lock, RW_LOCK_BIAS, 0) == RW_LOCK_BIAS;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* __ASM_SH_SPINLOCK_CAS_H */
diff --git a/arch/sh/include/asm/spinlock-llsc.h b/arch/sh/include/asm/spinlock-llsc.h
index f77263aae760..715595de286a 100644
--- a/arch/sh/include/asm/spinlock-llsc.h
+++ b/arch/sh/include/asm/spinlock-llsc.h
@@ -19,7 +19,6 @@
  */
 
 #define arch_spin_is_locked(x)		((x)->lock <= 0)
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
 
 /*
  * Simple spin lock operations.  There are two variants, one clears IRQ's
@@ -89,18 +88,6 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
  * read-locks.
  */
 
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_read_can_lock(x)	((x)->lock > 0)
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-#define arch_write_can_lock(x)	((x)->lock == RW_LOCK_BIAS)
-
 static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp;
@@ -209,11 +196,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 	return (oldval > (RW_LOCK_BIAS - 1));
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* __ASM_SH_SPINLOCK_LLSC_H */
diff --git a/arch/sh/include/asm/spinlock_types.h b/arch/sh/include/asm/spinlock_types.h
index 9b7560db06ca..e82369f286a2 100644
--- a/arch/sh/include/asm/spinlock_types.h
+++ b/arch/sh/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SPINLOCK_TYPES_H
 #define __ASM_SH_SPINLOCK_TYPES_H
 
diff --git a/arch/sh/include/asm/sram.h b/arch/sh/include/asm/sram.h
index a2808ce4c0aa..c125cf219868 100644
--- a/arch/sh/include/asm/sram.h
+++ b/arch/sh/include/asm/sram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SRAM_H
 #define __ASM_SRAM_H
 
diff --git a/arch/sh/include/asm/stackprotector.h b/arch/sh/include/asm/stackprotector.h
index 141515a43b78..35616841d0a1 100644
--- a/arch/sh/include/asm/stackprotector.h
+++ b/arch/sh/include/asm/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_STACKPROTECTOR_H
 #define __ASM_SH_STACKPROTECTOR_H
 
diff --git a/arch/sh/include/asm/stacktrace.h b/arch/sh/include/asm/stacktrace.h
index a7e2d4dfd087..50c173c0b9f5 100644
--- a/arch/sh/include/asm/stacktrace.h
+++ b/arch/sh/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2009  Matt Fleming
  *
diff --git a/arch/sh/include/asm/string.h b/arch/sh/include/asm/string.h
index 114011fa08af..84fc5ed9c5b3 100644
--- a/arch/sh/include/asm/string.h
+++ b/arch/sh/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_SUPERH32
 # include <asm/string_32.h>
 #else
diff --git a/arch/sh/include/asm/string_64.h b/arch/sh/include/asm/string_64.h
index 742007172624..d51d6150a4e2 100644
--- a/arch/sh/include/asm/string_64.h
+++ b/arch/sh/include/asm/string_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_STRING_64_H
 #define __ASM_SH_STRING_64_H
 
diff --git a/arch/sh/include/asm/suspend.h b/arch/sh/include/asm/suspend.h
index 70ae0b2888ab..47db17520261 100644
--- a/arch/sh/include/asm/suspend.h
+++ b/arch/sh/include/asm/suspend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SH_SUSPEND_H
 #define _ASM_SH_SUSPEND_H
 
diff --git a/arch/sh/include/asm/switch_to_32.h b/arch/sh/include/asm/switch_to_32.h
index 7661b4ba8259..9c93fb91adb4 100644
--- a/arch/sh/include/asm/switch_to_32.h
+++ b/arch/sh/include/asm/switch_to_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SWITCH_TO_32_H
 #define __ASM_SH_SWITCH_TO_32_H
 
diff --git a/arch/sh/include/asm/syscall.h b/arch/sh/include/asm/syscall.h
index 847128da6eac..90ba00002626 100644
--- a/arch/sh/include/asm/syscall.h
+++ b/arch/sh/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SYSCALL_H
 #define __ASM_SH_SYSCALL_H
 
diff --git a/arch/sh/include/asm/syscall_32.h b/arch/sh/include/asm/syscall_32.h
index 95be3b0ce0ac..6e118799831c 100644
--- a/arch/sh/include/asm/syscall_32.h
+++ b/arch/sh/include/asm/syscall_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SYSCALL_32_H
 #define __ASM_SH_SYSCALL_32_H
 
diff --git a/arch/sh/include/asm/syscall_64.h b/arch/sh/include/asm/syscall_64.h
index c6a797b90b80..43882580c7f9 100644
--- a/arch/sh/include/asm/syscall_64.h
+++ b/arch/sh/include/asm/syscall_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SYSCALL_64_H
 #define __ASM_SH_SYSCALL_64_H
 
diff --git a/arch/sh/include/asm/syscalls.h b/arch/sh/include/asm/syscalls.h
index 3dbfef06f6b2..995ef046232c 100644
--- a/arch/sh/include/asm/syscalls.h
+++ b/arch/sh/include/asm/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SYSCALLS_H
 #define __ASM_SH_SYSCALLS_H
 
diff --git a/arch/sh/include/asm/syscalls_32.h b/arch/sh/include/asm/syscalls_32.h
index 4f643aa718e3..9f9faf63b48c 100644
--- a/arch/sh/include/asm/syscalls_32.h
+++ b/arch/sh/include/asm/syscalls_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SYSCALLS_32_H
 #define __ASM_SH_SYSCALLS_32_H
 
diff --git a/arch/sh/include/asm/syscalls_64.h b/arch/sh/include/asm/syscalls_64.h
index d62e8eb22f74..df42656cebea 100644
--- a/arch/sh/include/asm/syscalls_64.h
+++ b/arch/sh/include/asm/syscalls_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SYSCALLS_64_H
 #define __ASM_SH_SYSCALLS_64_H
 
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 6c65dcd470ab..becb798f1b04 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_THREAD_INFO_H
 #define __ASM_SH_THREAD_INFO_H
 
diff --git a/arch/sh/include/asm/timex.h b/arch/sh/include/asm/timex.h
index 18bf06d9c764..f53f95bf4288 100644
--- a/arch/sh/include/asm/timex.h
+++ b/arch/sh/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-sh/timex.h
  *
diff --git a/arch/sh/include/asm/tlb.h b/arch/sh/include/asm/tlb.h
index 51a8bc967e75..77abe192fb43 100644
--- a/arch/sh/include/asm/tlb.h
+++ b/arch/sh/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_TLB_H
 #define __ASM_SH_TLB_H
 
diff --git a/arch/sh/include/asm/tlbflush.h b/arch/sh/include/asm/tlbflush.h
index 0df66f0c7284..8f180cd3bcd6 100644
--- a/arch/sh/include/asm/tlbflush.h
+++ b/arch/sh/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_TLBFLUSH_H
 #define __ASM_SH_TLBFLUSH_H
 
diff --git a/arch/sh/include/asm/topology.h b/arch/sh/include/asm/topology.h
index 358e3f516ef6..9a32eb4098df 100644
--- a/arch/sh/include/asm/topology.h
+++ b/arch/sh/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SH_TOPOLOGY_H
 #define _ASM_SH_TOPOLOGY_H
 
diff --git a/arch/sh/include/asm/traps.h b/arch/sh/include/asm/traps.h
index 9cc149a0dbd1..8844ed0c0fde 100644
--- a/arch/sh/include/asm/traps.h
+++ b/arch/sh/include/asm/traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_TRAPS_H
 #define __ASM_SH_TRAPS_H
 
diff --git a/arch/sh/include/asm/traps_32.h b/arch/sh/include/asm/traps_32.h
index 17e129fe459c..8c5bbb7b6053 100644
--- a/arch/sh/include/asm/traps_32.h
+++ b/arch/sh/include/asm/traps_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_TRAPS_32_H
 #define __ASM_SH_TRAPS_32_H
 
diff --git a/arch/sh/include/asm/types.h b/arch/sh/include/asm/types.h
index 6a31053fa5e3..df96c511bb6e 100644
--- a/arch/sh/include/asm/types.h
+++ b/arch/sh/include/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_TYPES_H
 #define __ASM_SH_TYPES_H
 
diff --git a/arch/sh/include/asm/uaccess.h b/arch/sh/include/asm/uaccess.h
index 211b44920dbe..32eb56e00c11 100644
--- a/arch/sh/include/asm/uaccess.h
+++ b/arch/sh/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_UACCESS_H
 #define __ASM_SH_UACCESS_H
 
diff --git a/arch/sh/include/asm/uaccess_32.h b/arch/sh/include/asm/uaccess_32.h
index c0de7ee35ab7..624cf55acc27 100644
--- a/arch/sh/include/asm/uaccess_32.h
+++ b/arch/sh/include/asm/uaccess_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * User space memory access functions
  *
diff --git a/arch/sh/include/asm/unaligned-sh4a.h b/arch/sh/include/asm/unaligned-sh4a.h
index 95adc500cabc..d311f00ed530 100644
--- a/arch/sh/include/asm/unaligned-sh4a.h
+++ b/arch/sh/include/asm/unaligned-sh4a.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_UNALIGNED_SH4A_H
 #define __ASM_SH_UNALIGNED_SH4A_H
 
diff --git a/arch/sh/include/asm/unaligned.h b/arch/sh/include/asm/unaligned.h
index 7d14e0669961..0c92e2c73af4 100644
--- a/arch/sh/include/asm/unaligned.h
+++ b/arch/sh/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SH_UNALIGNED_H
 #define _ASM_SH_UNALIGNED_H
 
diff --git a/arch/sh/include/asm/uncached.h b/arch/sh/include/asm/uncached.h
index 6f8816b79cf1..e7f68ec61014 100644
--- a/arch/sh/include/asm/uncached.h
+++ b/arch/sh/include/asm/uncached.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_UNCACHED_H
 #define __ASM_SH_UNCACHED_H
 
diff --git a/arch/sh/include/asm/unistd.h b/arch/sh/include/asm/unistd.h
index 126fe8340b22..b36200af9ce7 100644
--- a/arch/sh/include/asm/unistd.h
+++ b/arch/sh/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 # ifdef CONFIG_SUPERH32
 #  include <asm/unistd_32.h>
 # else
diff --git a/arch/sh/include/asm/unwinder.h b/arch/sh/include/asm/unwinder.h
index 1e65c07b3e18..ce82c96c7899 100644
--- a/arch/sh/include/asm/unwinder.h
+++ b/arch/sh/include/asm/unwinder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNWINDER_H
 #define _LINUX_UNWINDER_H
 
diff --git a/arch/sh/include/asm/user.h b/arch/sh/include/asm/user.h
index 8fd3cf6c58d4..e97f2efed527 100644
--- a/arch/sh/include/asm/user.h
+++ b/arch/sh/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_USER_H
 #define __ASM_SH_USER_H
 
diff --git a/arch/sh/include/asm/vmlinux.lds.h b/arch/sh/include/asm/vmlinux.lds.h
index d58ad493b3a6..f312813f39d8 100644
--- a/arch/sh/include/asm/vmlinux.lds.h
+++ b/arch/sh/include/asm/vmlinux.lds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_VMLINUX_LDS_H
 #define __ASM_SH_VMLINUX_LDS_H
 
diff --git a/arch/sh/include/asm/word-at-a-time.h b/arch/sh/include/asm/word-at-a-time.h
index 6e38953ff7fd..4aa398455b94 100644
--- a/arch/sh/include/asm/word-at-a-time.h
+++ b/arch/sh/include/asm/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_WORD_AT_A_TIME_H
 #define __ASM_SH_WORD_AT_A_TIME_H
 
diff --git a/arch/sh/include/cpu-common/cpu/rtc.h b/arch/sh/include/cpu-common/cpu/rtc.h
index 39e2d6e94782..5fe726acd9f8 100644
--- a/arch/sh/include/cpu-common/cpu/rtc.h
+++ b/arch/sh/include/cpu-common/cpu/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH2_RTC_H
 #define __ASM_SH_CPU_SH2_RTC_H
 
diff --git a/arch/sh/include/cpu-common/cpu/sigcontext.h b/arch/sh/include/cpu-common/cpu/sigcontext.h
index fe5c15dd6e87..e005dd176ff2 100644
--- a/arch/sh/include/cpu-common/cpu/sigcontext.h
+++ b/arch/sh/include/cpu-common/cpu/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_SH2_SIGCONTEXT_H
 #define __ASM_CPU_SH2_SIGCONTEXT_H
 
diff --git a/arch/sh/include/cpu-sh2a/cpu/addrspace.h b/arch/sh/include/cpu-sh2a/cpu/addrspace.h
index 31eb4b58aa6d..3afa46c09fb5 100644
--- a/arch/sh/include/cpu-sh2a/cpu/addrspace.h
+++ b/arch/sh/include/cpu-sh2a/cpu/addrspace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH2A_ADDRSPACE_H
 #define __ASM_SH_CPU_SH2A_ADDRSPACE_H
 
diff --git a/arch/sh/include/cpu-sh2a/cpu/rtc.h b/arch/sh/include/cpu-sh2a/cpu/rtc.h
index afb511e2bed7..6b6c7ee752de 100644
--- a/arch/sh/include/cpu-sh2a/cpu/rtc.h
+++ b/arch/sh/include/cpu-sh2a/cpu/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH2A_RTC_H
 #define __ASM_SH_CPU_SH2A_RTC_H
 
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7203.h b/arch/sh/include/cpu-sh2a/cpu/sh7203.h
index 79f93159018d..f250adfa46c6 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7203.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7203.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7203_H__
 #define __ASM_SH7203_H__
 
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7264.h b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
index 4d1ef6d74bd6..d12c19186845 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7264.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7264.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7264_H__
 #define __ASM_SH7264_H__
 
@@ -43,9 +44,7 @@ enum {
 	GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
 	GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,
 
-	/* Port H */
-	GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
-	GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+	/* Port H - Port H does not have a Data Register */
 
 	/* Port I - not on device */
 
diff --git a/arch/sh/include/cpu-sh2a/cpu/sh7269.h b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
index 2a0ca8780f0d..d516e5d48818 100644
--- a/arch/sh/include/cpu-sh2a/cpu/sh7269.h
+++ b/arch/sh/include/cpu-sh2a/cpu/sh7269.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7269_H__
 #define __ASM_SH7269_H__
 
@@ -45,9 +46,7 @@ enum {
 	GPIO_PG7, GPIO_PG6, GPIO_PG5, GPIO_PG4,
 	GPIO_PG3, GPIO_PG2, GPIO_PG1, GPIO_PG0,
 
-	/* Port H */
-	GPIO_PH7, GPIO_PH6, GPIO_PH5, GPIO_PH4,
-	GPIO_PH3, GPIO_PH2, GPIO_PH1, GPIO_PH0,
+	/* Port H - Port H does not have a Data Register */
 
 	/* Port I - not on device */
 
diff --git a/arch/sh/include/cpu-sh3/cpu/adc.h b/arch/sh/include/cpu-sh3/cpu/adc.h
index b289e3ca19a6..2ee206c9bf1a 100644
--- a/arch/sh/include/cpu-sh3/cpu/adc.h
+++ b/arch/sh/include/cpu-sh3/cpu/adc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_SH3_ADC_H
 #define __ASM_CPU_SH3_ADC_H
 
diff --git a/arch/sh/include/cpu-sh3/cpu/dac.h b/arch/sh/include/cpu-sh3/cpu/dac.h
index 98f1d15f0ab5..fd02331608a8 100644
--- a/arch/sh/include/cpu-sh3/cpu/dac.h
+++ b/arch/sh/include/cpu-sh3/cpu/dac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_SH3_DAC_H
 #define __ASM_CPU_SH3_DAC_H
 
diff --git a/arch/sh/include/cpu-sh3/cpu/dma.h b/arch/sh/include/cpu-sh3/cpu/dma.h
index bccb4144a5e3..cd139681af4b 100644
--- a/arch/sh/include/cpu-sh3/cpu/dma.h
+++ b/arch/sh/include/cpu-sh3/cpu/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_SH3_DMA_H
 #define __ASM_CPU_SH3_DMA_H
 
diff --git a/arch/sh/include/cpu-sh3/cpu/serial.h b/arch/sh/include/cpu-sh3/cpu/serial.h
index 7766329bc103..7b2ce6e3003e 100644
--- a/arch/sh/include/cpu-sh3/cpu/serial.h
+++ b/arch/sh/include/cpu-sh3/cpu/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPU_SH3_SERIAL_H
 #define __CPU_SH3_SERIAL_H
 
diff --git a/arch/sh/include/cpu-sh3/cpu/sh7720.h b/arch/sh/include/cpu-sh3/cpu/sh7720.h
index 41c1406d6da2..449790c9eb77 100644
--- a/arch/sh/include/cpu-sh3/cpu/sh7720.h
+++ b/arch/sh/include/cpu-sh3/cpu/sh7720.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7720_H__
 #define __ASM_SH7720_H__
 
diff --git a/arch/sh/include/cpu-sh4/cpu/dma.h b/arch/sh/include/cpu-sh4/cpu/dma.h
index a520eb219621..38187d06b234 100644
--- a/arch/sh/include/cpu-sh4/cpu/dma.h
+++ b/arch/sh/include/cpu-sh4/cpu/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_SH4_DMA_H
 #define __ASM_CPU_SH4_DMA_H
 
diff --git a/arch/sh/include/cpu-sh4/cpu/rtc.h b/arch/sh/include/cpu-sh4/cpu/rtc.h
index 95e6fb76c24d..45647566940f 100644
--- a/arch/sh/include/cpu-sh4/cpu/rtc.h
+++ b/arch/sh/include/cpu-sh4/cpu/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH4_RTC_H
 #define __ASM_SH_CPU_SH4_RTC_H
 
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7722.h b/arch/sh/include/cpu-sh4/cpu/sh7722.h
index 3bb74e534d0f..2306c79f4b5e 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7722.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7722.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7722_H__
 #define __ASM_SH7722_H__
 
@@ -67,7 +68,7 @@ enum {
 	GPIO_PTN3, GPIO_PTN2, GPIO_PTN1, GPIO_PTN0,
 
 	/* PTQ */
-	GPIO_PTQ7, GPIO_PTQ6, GPIO_PTQ5, GPIO_PTQ4,
+	GPIO_PTQ6, GPIO_PTQ5, GPIO_PTQ4,
 	GPIO_PTQ3, GPIO_PTQ2, GPIO_PTQ1, GPIO_PTQ0,
 
 	/* PTR */
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7723.h b/arch/sh/include/cpu-sh4/cpu/sh7723.h
index 668da89bdac4..41f675307503 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7723.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7723.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7723_H__
 #define __ASM_SH7723_H__
 
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7724.h b/arch/sh/include/cpu-sh4/cpu/sh7724.h
index 38859f96d4e5..b3a7caf54c9d 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7724.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7724.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7724_H__
 #define __ASM_SH7724_H__
 
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7734.h b/arch/sh/include/cpu-sh4/cpu/sh7734.h
index 2fb9a7b71b41..96f0246ad2f2 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7734.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7734.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7734_H__
 #define __ASM_SH7734_H__
 
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7757.h b/arch/sh/include/cpu-sh4/cpu/sh7757.h
index 5340f3bc1863..6781d41b7467 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7757.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7757.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7757_H__
 #define __ASM_SH7757_H__
 
@@ -40,7 +41,7 @@ enum {
 
 	/* PTJ */
 	GPIO_PTJ0, GPIO_PTJ1, GPIO_PTJ2, GPIO_PTJ3,
-	GPIO_PTJ4, GPIO_PTJ5, GPIO_PTJ6, GPIO_PTJ7_RESV,
+	GPIO_PTJ4, GPIO_PTJ5, GPIO_PTJ6,
 
 	/* PTK */
 	GPIO_PTK0, GPIO_PTK1, GPIO_PTK2, GPIO_PTK3,
@@ -48,7 +49,7 @@ enum {
 
 	/* PTL */
 	GPIO_PTL0, GPIO_PTL1, GPIO_PTL2, GPIO_PTL3,
-	GPIO_PTL4, GPIO_PTL5, GPIO_PTL6, GPIO_PTL7_RESV,
+	GPIO_PTL4, GPIO_PTL5, GPIO_PTL6,
 
 	/* PTM */
 	GPIO_PTM0, GPIO_PTM1, GPIO_PTM2, GPIO_PTM3,
@@ -56,7 +57,7 @@ enum {
 
 	/* PTN */
 	GPIO_PTN0, GPIO_PTN1, GPIO_PTN2, GPIO_PTN3,
-	GPIO_PTN4, GPIO_PTN5, GPIO_PTN6, GPIO_PTN7_RESV,
+	GPIO_PTN4, GPIO_PTN5, GPIO_PTN6,
 
 	/* PTO */
 	GPIO_PTO0, GPIO_PTO1, GPIO_PTO2, GPIO_PTO3,
@@ -68,7 +69,7 @@ enum {
 
 	/* PTQ */
 	GPIO_PTQ0, GPIO_PTQ1, GPIO_PTQ2, GPIO_PTQ3,
-	GPIO_PTQ4, GPIO_PTQ5, GPIO_PTQ6, GPIO_PTQ7_RESV,
+	GPIO_PTQ4, GPIO_PTQ5, GPIO_PTQ6,
 
 	/* PTR */
 	GPIO_PTR0, GPIO_PTR1, GPIO_PTR2, GPIO_PTR3,
diff --git a/arch/sh/include/cpu-sh4/cpu/sh7785.h b/arch/sh/include/cpu-sh4/cpu/sh7785.h
index 9dc9d91e0a8e..37f42071e7d3 100644
--- a/arch/sh/include/cpu-sh4/cpu/sh7785.h
+++ b/arch/sh/include/cpu-sh4/cpu/sh7785.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH7785_H__
 #define __ASM_SH7785_H__
 
diff --git a/arch/sh/include/cpu-sh4/cpu/shx3.h b/arch/sh/include/cpu-sh4/cpu/shx3.h
index 68d9080a8da9..f356810b0bea 100644
--- a/arch/sh/include/cpu-sh4/cpu/shx3.h
+++ b/arch/sh/include/cpu-sh4/cpu/shx3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPU_SHX3_H
 #define __CPU_SHX3_H
 
diff --git a/arch/sh/include/cpu-sh4/cpu/sigcontext.h b/arch/sh/include/cpu-sh4/cpu/sigcontext.h
index ab392f120e06..2cc5f55dcadd 100644
--- a/arch/sh/include/cpu-sh4/cpu/sigcontext.h
+++ b/arch/sh/include/cpu-sh4/cpu/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_SH4_SIGCONTEXT_H
 #define __ASM_CPU_SH4_SIGCONTEXT_H
 
diff --git a/arch/sh/include/cpu-sh4a/cpu/dma.h b/arch/sh/include/cpu-sh4a/cpu/dma.h
index 8ceccceae844..bdbbba8a784a 100644
--- a/arch/sh/include/cpu-sh4a/cpu/dma.h
+++ b/arch/sh/include/cpu-sh4a/cpu/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH4_DMA_SH7780_H
 #define __ASM_SH_CPU_SH4_DMA_SH7780_H
 
diff --git a/arch/sh/include/cpu-sh4a/cpu/serial.h b/arch/sh/include/cpu-sh4a/cpu/serial.h
index ff1bc275d210..fc206c0bf6fb 100644
--- a/arch/sh/include/cpu-sh4a/cpu/serial.h
+++ b/arch/sh/include/cpu-sh4a/cpu/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPU_SH4A_SERIAL_H
 #define __CPU_SH4A_SERIAL_H
 
diff --git a/arch/sh/include/cpu-sh5/cpu/addrspace.h b/arch/sh/include/cpu-sh5/cpu/addrspace.h
index dc36b9a03af6..6dd1e72f31b2 100644
--- a/arch/sh/include/cpu-sh5/cpu/addrspace.h
+++ b/arch/sh/include/cpu-sh5/cpu/addrspace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH5_ADDRSPACE_H
 #define __ASM_SH_CPU_SH5_ADDRSPACE_H
 
diff --git a/arch/sh/include/cpu-sh5/cpu/mmu_context.h b/arch/sh/include/cpu-sh5/cpu/mmu_context.h
index 68a1d2cff457..23c53be945b7 100644
--- a/arch/sh/include/cpu-sh5/cpu/mmu_context.h
+++ b/arch/sh/include/cpu-sh5/cpu/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH5_MMU_CONTEXT_H
 #define __ASM_SH_CPU_SH5_MMU_CONTEXT_H
 
diff --git a/arch/sh/include/cpu-sh5/cpu/rtc.h b/arch/sh/include/cpu-sh5/cpu/rtc.h
index 12ea0ed144e1..d7e25d435f4a 100644
--- a/arch/sh/include/cpu-sh5/cpu/rtc.h
+++ b/arch/sh/include/cpu-sh5/cpu/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_CPU_SH5_RTC_H
 #define __ASM_SH_CPU_SH5_RTC_H
 
diff --git a/arch/sh/include/mach-common/mach/highlander.h b/arch/sh/include/mach-common/mach/highlander.h
index 6ce944e33e59..66d3e40fd046 100644
--- a/arch/sh/include/mach-common/mach/highlander.h
+++ b/arch/sh/include/mach-common/mach/highlander.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_RENESAS_R7780RP_H
 #define __ASM_SH_RENESAS_R7780RP_H
 
diff --git a/arch/sh/include/mach-common/mach/r2d.h b/arch/sh/include/mach-common/mach/r2d.h
index e04f75eaa153..0d7e483c7d3f 100644
--- a/arch/sh/include/mach-common/mach/r2d.h
+++ b/arch/sh/include/mach-common/mach/r2d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_RENESAS_RTS7751R2D_H
 #define __ASM_SH_RENESAS_RTS7751R2D_H
 
diff --git a/arch/sh/include/mach-common/mach/romimage.h b/arch/sh/include/mach-common/mach/romimage.h
index 3670455faaac..1915714263aa 100644
--- a/arch/sh/include/mach-common/mach/romimage.h
+++ b/arch/sh/include/mach-common/mach/romimage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __ASSEMBLY__
 
 /* do nothing here by default */
diff --git a/arch/sh/include/mach-common/mach/sh2007.h b/arch/sh/include/mach-common/mach/sh2007.h
index 48180b9aa03d..eeb12901a44a 100644
--- a/arch/sh/include/mach-common/mach/sh2007.h
+++ b/arch/sh/include/mach-common/mach/sh2007.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SH2007_H
 #define __MACH_SH2007_H
 
diff --git a/arch/sh/include/mach-common/mach/sh7785lcr.h b/arch/sh/include/mach-common/mach/sh7785lcr.h
index 1292ae5c21b3..0f3dc3a1329e 100644
--- a/arch/sh/include/mach-common/mach/sh7785lcr.h
+++ b/arch/sh/include/mach-common/mach/sh7785lcr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_RENESAS_SH7785LCR_H
 #define __ASM_SH_RENESAS_SH7785LCR_H
 
diff --git a/arch/sh/include/mach-common/mach/shmin.h b/arch/sh/include/mach-common/mach/shmin.h
index 36ba138a81fb..c2c3e26d1453 100644
--- a/arch/sh/include/mach-common/mach/shmin.h
+++ b/arch/sh/include/mach-common/mach/shmin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SHMIN_H
 #define __ASM_SH_SHMIN_H
 
diff --git a/arch/sh/include/mach-common/mach/titan.h b/arch/sh/include/mach-common/mach/titan.h
index fa3cd801cf2e..54df351de5e4 100644
--- a/arch/sh/include/mach-common/mach/titan.h
+++ b/arch/sh/include/mach-common/mach/titan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform definitions for Titan
  */
diff --git a/arch/sh/include/mach-common/mach/urquell.h b/arch/sh/include/mach-common/mach/urquell.h
index 14b3e1d01777..6c9bff3f93f1 100644
--- a/arch/sh/include/mach-common/mach/urquell.h
+++ b/arch/sh/include/mach-common/mach/urquell.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_URQUELL_H
 #define __MACH_URQUELL_H
 
diff --git a/arch/sh/include/mach-dreamcast/mach/maple.h b/arch/sh/include/mach-dreamcast/mach/maple.h
index 51f6a87f1f11..169bdf415d89 100644
--- a/arch/sh/include/mach-dreamcast/mach/maple.h
+++ b/arch/sh/include/mach-dreamcast/mach/maple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MAPLE_H
 #define __ASM_MAPLE_H
 
diff --git a/arch/sh/include/mach-ecovec24/mach/romimage.h b/arch/sh/include/mach-ecovec24/mach/romimage.h
index 60f3e8af05fa..2da6ff326cbd 100644
--- a/arch/sh/include/mach-ecovec24/mach/romimage.h
+++ b/arch/sh/include/mach-ecovec24/mach/romimage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __ASSEMBLY__
 
 /* EcoVec board specific boot code:
diff --git a/arch/sh/include/mach-kfr2r09/mach/kfr2r09.h b/arch/sh/include/mach-kfr2r09/mach/kfr2r09.h
index 79f154e5cb9c..0e97473afe0b 100644
--- a/arch/sh/include/mach-kfr2r09/mach/kfr2r09.h
+++ b/arch/sh/include/mach-kfr2r09/mach/kfr2r09.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_KFR2R09_H
 #define __ASM_SH_KFR2R09_H
 
diff --git a/arch/sh/include/mach-kfr2r09/mach/romimage.h b/arch/sh/include/mach-kfr2r09/mach/romimage.h
index 1afae21ced5f..209275872ff0 100644
--- a/arch/sh/include/mach-kfr2r09/mach/romimage.h
+++ b/arch/sh/include/mach-kfr2r09/mach/romimage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __ASSEMBLY__
 
 /* kfr2r09 board specific boot code:
diff --git a/arch/sh/include/mach-landisk/mach/gio.h b/arch/sh/include/mach-landisk/mach/gio.h
index 35d7368b718a..b954de617b49 100644
--- a/arch/sh/include/mach-landisk/mach/gio.h
+++ b/arch/sh/include/mach-landisk/mach/gio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_LANDISK_GIO_H
 #define __ASM_SH_LANDISK_GIO_H
 
diff --git a/arch/sh/include/mach-landisk/mach/iodata_landisk.h b/arch/sh/include/mach-landisk/mach/iodata_landisk.h
index ceeea48cc7af..b41308c94d1e 100644
--- a/arch/sh/include/mach-landisk/mach/iodata_landisk.h
+++ b/arch/sh/include/mach-landisk/mach/iodata_landisk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_IODATA_LANDISK_H
 #define __ASM_SH_IODATA_LANDISK_H
 
diff --git a/arch/sh/include/mach-migor/mach/migor.h b/arch/sh/include/mach-migor/mach/migor.h
index 7de7bb74c290..2a422b778e00 100644
--- a/arch/sh/include/mach-migor/mach/migor.h
+++ b/arch/sh/include/mach-migor/mach/migor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MIGOR_H
 #define __ASM_SH_MIGOR_H
 
diff --git a/arch/sh/include/mach-sdk7786/mach/fpga.h b/arch/sh/include/mach-sdk7786/mach/fpga.h
index a9cdac469927..76c2e84893cc 100644
--- a/arch/sh/include/mach-sdk7786/mach/fpga.h
+++ b/arch/sh/include/mach-sdk7786/mach/fpga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SDK7786_FPGA_H
 #define __MACH_SDK7786_FPGA_H
 
diff --git a/arch/sh/include/mach-sdk7786/mach/irq.h b/arch/sh/include/mach-sdk7786/mach/irq.h
index 0f584635e6e5..3343380907b2 100644
--- a/arch/sh/include/mach-sdk7786/mach/irq.h
+++ b/arch/sh/include/mach-sdk7786/mach/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SDK7786_IRQ_H
 #define __MACH_SDK7786_IRQ_H
 
diff --git a/arch/sh/include/mach-se/mach/mrshpc.h b/arch/sh/include/mach-se/mach/mrshpc.h
index 56287ee8563a..4e260f399b79 100644
--- a/arch/sh/include/mach-se/mach/mrshpc.h
+++ b/arch/sh/include/mach-se/mach/mrshpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SE_MRSHPC_H
 #define __MACH_SE_MRSHPC_H
 
diff --git a/arch/sh/include/mach-se/mach/se.h b/arch/sh/include/mach-se/mach/se.h
index 8a6d44b4987b..4246ef9b07a3 100644
--- a/arch/sh/include/mach-se/mach/se.h
+++ b/arch/sh/include/mach-se/mach/se.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HITACHI_SE_H
 #define __ASM_SH_HITACHI_SE_H
 
diff --git a/arch/sh/include/mach-se/mach/se7206.h b/arch/sh/include/mach-se/mach/se7206.h
index 698eb80389ab..cf190279bb1d 100644
--- a/arch/sh/include/mach-se/mach/se7206.h
+++ b/arch/sh/include/mach-se/mach/se7206.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SE7206_H
 #define __ASM_SH_SE7206_H
 
diff --git a/arch/sh/include/mach-se/mach/se7343.h b/arch/sh/include/mach-se/mach/se7343.h
index 542521c970c6..107fb5f3ef80 100644
--- a/arch/sh/include/mach-se/mach/se7343.h
+++ b/arch/sh/include/mach-se/mach/se7343.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HITACHI_SE7343_H
 #define __ASM_SH_HITACHI_SE7343_H
 
diff --git a/arch/sh/include/mach-se/mach/se7751.h b/arch/sh/include/mach-se/mach/se7751.h
index 271871793d59..ee5b5e6e5979 100644
--- a/arch/sh/include/mach-se/mach/se7751.h
+++ b/arch/sh/include/mach-se/mach/se7751.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_HITACHI_7751SE_H
 #define __ASM_SH_HITACHI_7751SE_H
 
diff --git a/arch/sh/include/mach-sh03/mach/io.h b/arch/sh/include/mach-sh03/mach/io.h
index c39c785bba94..5eacdabd71b6 100644
--- a/arch/sh/include/mach-sh03/mach/io.h
+++ b/arch/sh/include/mach-sh03/mach/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm-sh/sh03/io.h
  *
diff --git a/arch/sh/include/mach-sh03/mach/sh03.h b/arch/sh/include/mach-sh03/mach/sh03.h
index 19c40b80428d..4ced684b16a4 100644
--- a/arch/sh/include/mach-sh03/mach/sh03.h
+++ b/arch/sh/include/mach-sh03/mach/sh03.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_SH03_H
 #define __ASM_SH_SH03_H
 
diff --git a/arch/sh/include/mach-x3proto/mach/hardware.h b/arch/sh/include/mach-x3proto/mach/hardware.h
index 52bca57bfeb6..57ea4a5cca35 100644
--- a/arch/sh/include/mach-x3proto/mach/hardware.h
+++ b/arch/sh/include/mach-x3proto/mach/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_X3PROTO_HARDWARE_H
 #define __MACH_X3PROTO_HARDWARE_H
 
diff --git a/arch/sh/include/mach-x3proto/mach/ilsel.h b/arch/sh/include/mach-x3proto/mach/ilsel.h
index e3d304b280f6..47aeb4b55ea1 100644
--- a/arch/sh/include/mach-x3proto/mach/ilsel.h
+++ b/arch/sh/include/mach-x3proto/mach/ilsel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ILSEL_H
 #define __ASM_SH_ILSEL_H
 
diff --git a/arch/sh/include/uapi/asm/auxvec.h b/arch/sh/include/uapi/asm/auxvec.h
index 8bcc51af9367..8eb47ede7193 100644
--- a/arch/sh/include/uapi/asm/auxvec.h
+++ b/arch/sh/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_AUXVEC_H
 #define __ASM_SH_AUXVEC_H
 
diff --git a/arch/sh/include/uapi/asm/byteorder.h b/arch/sh/include/uapi/asm/byteorder.h
index db2f5d7cb17d..e27d6da3212c 100644
--- a/arch/sh/include/uapi/asm/byteorder.h
+++ b/arch/sh/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_BYTEORDER_H
 #define __ASM_SH_BYTEORDER_H
 
diff --git a/arch/sh/include/uapi/asm/cachectl.h b/arch/sh/include/uapi/asm/cachectl.h
index 6ffb4b7a212e..79c5663251a5 100644
--- a/arch/sh/include/uapi/asm/cachectl.h
+++ b/arch/sh/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SH_CACHECTL_H
 #define _SH_CACHECTL_H
 
diff --git a/arch/sh/include/uapi/asm/cpu-features.h b/arch/sh/include/uapi/asm/cpu-features.h
index 2f1bc851042a..6de5f65194e6 100644
--- a/arch/sh/include/uapi/asm/cpu-features.h
+++ b/arch/sh/include/uapi/asm/cpu-features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_CPU_FEATURES_H
 #define __ASM_SH_CPU_FEATURES_H
 
diff --git a/arch/sh/include/uapi/asm/hw_breakpoint.h b/arch/sh/include/uapi/asm/hw_breakpoint.h
index ae5704fa77ad..043dd4b92026 100644
--- a/arch/sh/include/uapi/asm/hw_breakpoint.h
+++ b/arch/sh/include/uapi/asm/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * There isn't anything here anymore, but the file must not be empty or patch
  * will delete it.
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index 787bac9f67da..cc62f6f98103 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_IOCTLS_H
 #define __ASM_SH_IOCTLS_H
 
diff --git a/arch/sh/include/uapi/asm/posix_types.h b/arch/sh/include/uapi/asm/posix_types.h
index dc55e5adfe1e..2644fdd444e6 100644
--- a/arch/sh/include/uapi/asm/posix_types.h
+++ b/arch/sh/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __KERNEL__
 # ifdef __SH5__
 #  include <asm/posix_types_64.h>
diff --git a/arch/sh/include/uapi/asm/posix_types_32.h b/arch/sh/include/uapi/asm/posix_types_32.h
index ba0bdc423b07..ea0f51d1ac55 100644
--- a/arch/sh/include/uapi/asm/posix_types_32.h
+++ b/arch/sh/include/uapi/asm/posix_types_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_POSIX_TYPES_32_H
 #define __ASM_SH_POSIX_TYPES_32_H
 
diff --git a/arch/sh/include/uapi/asm/posix_types_64.h b/arch/sh/include/uapi/asm/posix_types_64.h
index 244f7e950e17..3a9128d4aee3 100644
--- a/arch/sh/include/uapi/asm/posix_types_64.h
+++ b/arch/sh/include/uapi/asm/posix_types_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_POSIX_TYPES_64_H
 #define __ASM_SH_POSIX_TYPES_64_H
 
diff --git a/arch/sh/include/uapi/asm/ptrace.h b/arch/sh/include/uapi/asm/ptrace.h
index 8b8c5aca9c28..4ec9c2b65fdb 100644
--- a/arch/sh/include/uapi/asm/ptrace.h
+++ b/arch/sh/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 1999, 2000  Niibe Yutaka
  */
diff --git a/arch/sh/include/uapi/asm/ptrace_32.h b/arch/sh/include/uapi/asm/ptrace_32.h
index 926e0cefc2bb..dc8a26015018 100644
--- a/arch/sh/include/uapi/asm/ptrace_32.h
+++ b/arch/sh/include/uapi/asm/ptrace_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_SH_PTRACE_32_H
 #define _UAPI__ASM_SH_PTRACE_32_H
 
diff --git a/arch/sh/include/uapi/asm/ptrace_64.h b/arch/sh/include/uapi/asm/ptrace_64.h
index 0e52ee83e946..a6f84eba5277 100644
--- a/arch/sh/include/uapi/asm/ptrace_64.h
+++ b/arch/sh/include/uapi/asm/ptrace_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_SH_PTRACE_64_H
 #define _UAPI__ASM_SH_PTRACE_64_H
 
diff --git a/arch/sh/include/uapi/asm/sigcontext.h b/arch/sh/include/uapi/asm/sigcontext.h
index faa5d0833412..d2b7e4f033c0 100644
--- a/arch/sh/include/uapi/asm/sigcontext.h
+++ b/arch/sh/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SIGCONTEXT_H
 #define __ASM_SH_SIGCONTEXT_H
 
diff --git a/arch/sh/include/uapi/asm/signal.h b/arch/sh/include/uapi/asm/signal.h
index cb96d02f55a4..97299daddef5 100644
--- a/arch/sh/include/uapi/asm/signal.h
+++ b/arch/sh/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SIGNAL_H
 #define __ASM_SH_SIGNAL_H
 
diff --git a/arch/sh/include/uapi/asm/sockios.h b/arch/sh/include/uapi/asm/sockios.h
index cf8b96b1f9ab..17313d2c3527 100644
--- a/arch/sh/include/uapi/asm/sockios.h
+++ b/arch/sh/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SOCKIOS_H
 #define __ASM_SH_SOCKIOS_H
 
diff --git a/arch/sh/include/uapi/asm/stat.h b/arch/sh/include/uapi/asm/stat.h
index e1810cc6e3da..659b87c7c25a 100644
--- a/arch/sh/include/uapi/asm/stat.h
+++ b/arch/sh/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_STAT_H
 #define __ASM_SH_STAT_H
 
diff --git a/arch/sh/include/uapi/asm/swab.h b/arch/sh/include/uapi/asm/swab.h
index 1cd09767a7a3..f0b02152745c 100644
--- a/arch/sh/include/uapi/asm/swab.h
+++ b/arch/sh/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_SWAB_H
 #define __ASM_SH_SWAB_H
 
diff --git a/arch/sh/include/uapi/asm/unistd.h b/arch/sh/include/uapi/asm/unistd.h
index eeef88dd53ce..9e0b4e5e6da2 100644
--- a/arch/sh/include/uapi/asm/unistd.h
+++ b/arch/sh/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __KERNEL__
 # ifdef __SH5__
 #  include <asm/unistd_64.h>
diff --git a/arch/sh/include/uapi/asm/unistd_32.h b/arch/sh/include/uapi/asm/unistd_32.h
index c801bde9e6f5..58f04cf3d1d9 100644
--- a/arch/sh/include/uapi/asm/unistd_32.h
+++ b/arch/sh/include/uapi/asm/unistd_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_UNISTD_32_H
 #define __ASM_SH_UNISTD_32_H
 
diff --git a/arch/sh/include/uapi/asm/unistd_64.h b/arch/sh/include/uapi/asm/unistd_64.h
index ce0cb3598b62..6f809a53aa24 100644
--- a/arch/sh/include/uapi/asm/unistd_64.h
+++ b/arch/sh/include/uapi/asm/unistd_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_SH_UNISTD_64_H
 #define __ASM_SH_UNISTD_64_H
 
diff --git a/arch/sh/kernel/Makefile b/arch/sh/kernel/Makefile
index 09040fd07d2e..dc80041f7363 100644
--- a/arch/sh/kernel/Makefile
+++ b/arch/sh/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH kernel.
 #
diff --git a/arch/sh/kernel/asm-offsets.c b/arch/sh/kernel/asm-offsets.c
index 4bd44da910f3..a0322e832845 100644
--- a/arch/sh/kernel/asm-offsets.c
+++ b/arch/sh/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This program is used to generate definitions needed by
  * assembly language modules.
diff --git a/arch/sh/kernel/cpu/Makefile b/arch/sh/kernel/cpu/Makefile
index 252e9fee687f..f7c22ea98b0f 100644
--- a/arch/sh/kernel/cpu/Makefile
+++ b/arch/sh/kernel/cpu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH CPU-specific backends.
 #
diff --git a/arch/sh/kernel/cpu/adc.c b/arch/sh/kernel/cpu/adc.c
index d307571d54b6..509136715ed5 100644
--- a/arch/sh/kernel/cpu/adc.c
+++ b/arch/sh/kernel/cpu/adc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/kernel/adc.c -- SH3 on-chip ADC support
  *
diff --git a/arch/sh/kernel/cpu/clock-cpg.c b/arch/sh/kernel/cpu/clock-cpg.c
index 786c0769b4c3..5b75a384cbf3 100644
--- a/arch/sh/kernel/cpu/clock-cpg.c
+++ b/arch/sh/kernel/cpu/clock-cpg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/clk.h>
 #include <linux/compiler.h>
 #include <linux/slab.h>
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index 547c73478459..ae354a2931e7 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
 #include <linux/sched/task_stack.h>
diff --git a/arch/sh/kernel/cpu/irq/imask.c b/arch/sh/kernel/cpu/irq/imask.c
index e7f1745bd121..572585c3f2fd 100644
--- a/arch/sh/kernel/cpu/irq/imask.c
+++ b/arch/sh/kernel/cpu/irq/imask.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/kernel/cpu/irq/imask.c
  *
diff --git a/arch/sh/kernel/cpu/proc.c b/arch/sh/kernel/cpu/proc.c
index 4df4b284f591..85961b4f9c69 100644
--- a/arch/sh/kernel/cpu/proc.c
+++ b/arch/sh/kernel/cpu/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/seq_file.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/arch/sh/kernel/cpu/sh2a/Makefile b/arch/sh/kernel/cpu/sh2a/Makefile
index 990195d98456..2a7515b658fd 100644
--- a/arch/sh/kernel/cpu/sh2a/Makefile
+++ b/arch/sh/kernel/cpu/sh2a/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH SH-2A backends.
 #
diff --git a/arch/sh/kernel/cpu/sh3/Makefile b/arch/sh/kernel/cpu/sh3/Makefile
index d3634ae7b71a..1dcb43d93c86 100644
--- a/arch/sh/kernel/cpu/sh3/Makefile
+++ b/arch/sh/kernel/cpu/sh3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH SH-3 backends.
 #
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh770x.c b/arch/sh/kernel/cpu/sh3/serial-sh770x.c
index 4f7242c676b3..dec027f233f2 100644
--- a/arch/sh/kernel/cpu/sh3/serial-sh770x.c
+++ b/arch/sh/kernel/cpu/sh3/serial-sh770x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/serial_sci.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7710.c b/arch/sh/kernel/cpu/sh3/serial-sh7710.c
index 42190ef6aebf..ee04052e5bdd 100644
--- a/arch/sh/kernel/cpu/sh3/serial-sh7710.c
+++ b/arch/sh/kernel/cpu/sh3/serial-sh7710.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/serial_sci.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7720.c b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
index c4a0336660dd..75aaea49de43 100644
--- a/arch/sh/kernel/cpu/sh3/serial-sh7720.c
+++ b/arch/sh/kernel/cpu/sh3/serial-sh7720.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/serial_sci.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
diff --git a/arch/sh/kernel/cpu/sh4/Makefile b/arch/sh/kernel/cpu/sh4/Makefile
index 3a1dbc709831..00c16331e07e 100644
--- a/arch/sh/kernel/cpu/sh4/Makefile
+++ b/arch/sh/kernel/cpu/sh4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH SH-4 backends.
 #
diff --git a/arch/sh/kernel/cpu/sh4a/Makefile b/arch/sh/kernel/cpu/sh4a/Makefile
index 0705df775208..baf73a8fc2a0 100644
--- a/arch/sh/kernel/cpu/sh4a/Makefile
+++ b/arch/sh/kernel/cpu/sh4a/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH SH-4 backends.
 #
diff --git a/arch/sh/kernel/cpu/sh4a/pinmux-sh7722.c b/arch/sh/kernel/cpu/sh4a/pinmux-sh7722.c
index 271bbc864929..0dd5312f930b 100644
--- a/arch/sh/kernel/cpu/sh4a/pinmux-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/pinmux-sh7722.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/kernel/cpu/sh4a/serial-sh7722.c b/arch/sh/kernel/cpu/sh4a/serial-sh7722.c
index 59bc3a72702e..6ecc8b6e133c 100644
--- a/arch/sh/kernel/cpu/sh4a/serial-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/serial-sh7722.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/serial_sci.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
diff --git a/arch/sh/kernel/cpu/sh5/Makefile b/arch/sh/kernel/cpu/sh5/Makefile
index a184a31e686e..97d23ec3005f 100644
--- a/arch/sh/kernel/cpu/sh5/Makefile
+++ b/arch/sh/kernel/cpu/sh5/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/SuperH SH-5 backends.
 #
diff --git a/arch/sh/kernel/crash_dump.c b/arch/sh/kernel/crash_dump.c
index b33be505361e..a9086127b16d 100644
--- a/arch/sh/kernel/crash_dump.c
+++ b/arch/sh/kernel/crash_dump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	crash_dump.c - Memory preserving reboot related code.
  *
diff --git a/arch/sh/kernel/ftrace.c b/arch/sh/kernel/ftrace.c
index d18724d186f3..96dd9f7da250 100644
--- a/arch/sh/kernel/ftrace.c
+++ b/arch/sh/kernel/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2008 Matt Fleming <matt@console-pimps.org>
  * Copyright (C) 2008 Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 04487e8fc9b1..245dbeb20afe 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/kernel/irq.c
  *
diff --git a/arch/sh/kernel/kdebugfs.c b/arch/sh/kernel/kdebugfs.c
index e11c30bb100c..95428e05d212 100644
--- a/arch/sh/kernel/kdebugfs.c
+++ b/arch/sh/kernel/kdebugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/debugfs.h>
diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
index f8a695a223dd..b2d9963d5978 100644
--- a/arch/sh/kernel/process.c
+++ b/arch/sh/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
diff --git a/arch/sh/kernel/ptrace.c b/arch/sh/kernel/ptrace.c
index 0a05983633ca..bfc59f2c2602 100644
--- a/arch/sh/kernel/ptrace.c
+++ b/arch/sh/kernel/ptrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ptrace.h>
 
 /**
diff --git a/arch/sh/kernel/reboot.c b/arch/sh/kernel/reboot.c
index 04afe5b20663..11001a8a5fe0 100644
--- a/arch/sh/kernel/reboot.c
+++ b/arch/sh/kernel/reboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pm.h>
 #include <linux/kexec.h>
 #include <linux/kernel.h>
diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 3a44c753b642..b95c411d0333 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/kernel/setup.c
  *
diff --git a/arch/sh/kernel/sh_ksyms_32.c b/arch/sh/kernel/sh_ksyms_32.c
index 0b30b9dfc87f..282774472603 100644
--- a/arch/sh/kernel/sh_ksyms_32.c
+++ b/arch/sh/kernel/sh_ksyms_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/string.h>
 #include <linux/uaccess.h>
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 08bce11badc6..c46c0020ff55 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/sh/kernel/signal.c
  *
diff --git a/arch/sh/kernel/sys_sh.c b/arch/sh/kernel/sys_sh.c
index 6576e5ee1fc3..724911c59e7d 100644
--- a/arch/sh/kernel/sys_sh.c
+++ b/arch/sh/kernel/sys_sh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/kernel/sys_sh.c
  *
diff --git a/arch/sh/kernel/sys_sh32.c b/arch/sh/kernel/sys_sh32.c
index a2e1231a90a3..f8dc8bfd4606 100644
--- a/arch/sh/kernel/sys_sh32.c
+++ b/arch/sh/kernel/sys_sh32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
diff --git a/arch/sh/kernel/traps.c b/arch/sh/kernel/traps.c
index b32d1c3a4655..8b49cced663d 100644
--- a/arch/sh/kernel/traps.c
+++ b/arch/sh/kernel/traps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/io.h>
 #include <linux/types.h>
diff --git a/arch/sh/kernel/vmlinux.lds.S b/arch/sh/kernel/vmlinux.lds.S
index 5b9a3cc90c58..77a59d8c6b4d 100644
--- a/arch/sh/kernel/vmlinux.lds.S
+++ b/arch/sh/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ld script to make SuperH Linux kernel
  * Written by Niibe Yutaka and Paul Mundt
diff --git a/arch/sh/kernel/vsyscall/Makefile b/arch/sh/kernel/vsyscall/Makefile
index 6ab108f1a0c6..5db6579bc44c 100644
--- a/arch/sh/kernel/vsyscall/Makefile
+++ b/arch/sh/kernel/vsyscall/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += vsyscall.o vsyscall-syscall.o vsyscall-syms.o
 
 $(obj)/vsyscall-syscall.o: \
diff --git a/arch/sh/kernel/vsyscall/vsyscall-note.S b/arch/sh/kernel/vsyscall/vsyscall-note.S
index d4b5be4f3d5f..bb350918bebd 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-note.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-note.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
  * Here we can supply some information useful to userland.
diff --git a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
index 23af17584054..bece5fa73618 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-sigreturn.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/unistd.h>
 
 	.text
diff --git a/arch/sh/kernel/vsyscall/vsyscall-syscall.S b/arch/sh/kernel/vsyscall/vsyscall-syscall.S
index c2ac7f0282b3..2aeaa2ddee50 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-syscall.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-syscall.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 
 __INITDATA
diff --git a/arch/sh/kernel/vsyscall/vsyscall-trapa.S b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
index 0eb74d00690a..854ea3235704 100644
--- a/arch/sh/kernel/vsyscall/vsyscall-trapa.S
+++ b/arch/sh/kernel/vsyscall/vsyscall-trapa.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.text
 	.globl __kernel_vsyscall
 	.type __kernel_vsyscall,@function
diff --git a/arch/sh/kernel/vsyscall/vsyscall.lds.S b/arch/sh/kernel/vsyscall/vsyscall.lds.S
index 6d59ee7c23dd..e3582e03c0eb 100644
--- a/arch/sh/kernel/vsyscall/vsyscall.lds.S
+++ b/arch/sh/kernel/vsyscall/vsyscall.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for vsyscall DSO.  The vsyscall page is an ELF shared
  * object prelinked to its virtual address, and with only one read-only
diff --git a/arch/sh/lib/Makefile b/arch/sh/lib/Makefile
index 3baff31e58cf..d0abbe5e38b0 100644
--- a/arch/sh/lib/Makefile
+++ b/arch/sh/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for SuperH-specific library files..
 #
diff --git a/arch/sh/lib/__clear_user.S b/arch/sh/lib/__clear_user.S
index db1dca7aad14..0978606907ed 100644
--- a/arch/sh/lib/__clear_user.S
+++ b/arch/sh/lib/__clear_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * __clear_user_page, __clear_user, clear_page implementation of SuperH
  *
diff --git a/arch/sh/lib/ashldi3.c b/arch/sh/lib/ashldi3.c
index beb80f316095..e5afe0935847 100644
--- a/arch/sh/lib/ashldi3.c
+++ b/arch/sh/lib/ashldi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 
 #include "libgcc.h"
diff --git a/arch/sh/lib/ashrdi3.c b/arch/sh/lib/ashrdi3.c
index c884a912b660..ae263fbf2538 100644
--- a/arch/sh/lib/ashrdi3.c
+++ b/arch/sh/lib/ashrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 
 #include "libgcc.h"
diff --git a/arch/sh/lib/copy_page.S b/arch/sh/lib/copy_page.S
index 9d7b8bc51866..d4e9d18cee0b 100644
--- a/arch/sh/lib/copy_page.S
+++ b/arch/sh/lib/copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * copy_page, __copy_user_page, __copy_user implementation of SuperH
  *
diff --git a/arch/sh/lib/delay.c b/arch/sh/lib/delay.c
index 0901b2f14e15..dad8e6a54906 100644
--- a/arch/sh/lib/delay.c
+++ b/arch/sh/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Precise Delay Loops for SuperH
  *
diff --git a/arch/sh/lib/div64-generic.c b/arch/sh/lib/div64-generic.c
index 60e76aa8b53e..0b67fbc44f6f 100644
--- a/arch/sh/lib/div64-generic.c
+++ b/arch/sh/lib/div64-generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic __div64_32 wrapper for __xdiv64_32.
  */
diff --git a/arch/sh/lib/div64.S b/arch/sh/lib/div64.S
index 5ee7334ea64f..4a9a966e71b0 100644
--- a/arch/sh/lib/div64.S
+++ b/arch/sh/lib/div64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*	
  * unsigned long __xdiv64_32(unsigned long long n, unsigned long d); 
  */
diff --git a/arch/sh/lib/lshrdi3.c b/arch/sh/lib/lshrdi3.c
index dcf8d6810b7c..33eaa1edbc3c 100644
--- a/arch/sh/lib/lshrdi3.c
+++ b/arch/sh/lib/lshrdi3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 
 #include "libgcc.h"
diff --git a/arch/sh/lib/memchr.S b/arch/sh/lib/memchr.S
index bc6036ad5706..8ded104077aa 100644
--- a/arch/sh/lib/memchr.S
+++ b/arch/sh/lib/memchr.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: memchr.S,v 1.1 2000/04/14 16:49:01 mjd Exp $
  *
  * "memchr" implementation of SuperH
diff --git a/arch/sh/lib/memcpy-sh4.S b/arch/sh/lib/memcpy-sh4.S
index 459fa92a7c53..a2435c0f6302 100644
--- a/arch/sh/lib/memcpy-sh4.S
+++ b/arch/sh/lib/memcpy-sh4.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * "memcpy" implementation of SuperH
  *
diff --git a/arch/sh/lib/memcpy.S b/arch/sh/lib/memcpy.S
index 232fab34c261..08ab3062c4b2 100644
--- a/arch/sh/lib/memcpy.S
+++ b/arch/sh/lib/memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: memcpy.S,v 1.3 2001/07/27 11:50:52 gniibe Exp $
  *
  * "memcpy" implementation of SuperH
diff --git a/arch/sh/lib/memmove.S b/arch/sh/lib/memmove.S
index 5a2211f09202..bdca321814a9 100644
--- a/arch/sh/lib/memmove.S
+++ b/arch/sh/lib/memmove.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: memmove.S,v 1.2 2001/07/27 11:51:09 gniibe Exp $
  *
  * "memmove" implementation of SuperH
diff --git a/arch/sh/lib/memset-sh4.S b/arch/sh/lib/memset-sh4.S
index 1a6e32cc4e4d..10649c4cdab8 100644
--- a/arch/sh/lib/memset-sh4.S
+++ b/arch/sh/lib/memset-sh4.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * "memset" implementation for SH4
  *
diff --git a/arch/sh/lib/memset.S b/arch/sh/lib/memset.S
index af91fe2b72a6..a6d5ec0bd9cf 100644
--- a/arch/sh/lib/memset.S
+++ b/arch/sh/lib/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: memset.S,v 1.1 2000/04/14 16:49:01 mjd Exp $
  *
  * "memset" implementation of SuperH
diff --git a/arch/sh/lib/strlen.S b/arch/sh/lib/strlen.S
index 1bcc13f05962..80ea53dd34f6 100644
--- a/arch/sh/lib/strlen.S
+++ b/arch/sh/lib/strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: strlen.S,v 1.2 2001/06/29 14:07:15 gniibe Exp $
  *
  * "strlen" implementation of SuperH
diff --git a/arch/sh/lib64/copy_user_memcpy.S b/arch/sh/lib64/copy_user_memcpy.S
index 49aeabeba2c2..515f81b00202 100644
--- a/arch/sh/lib64/copy_user_memcpy.S
+++ b/arch/sh/lib64/copy_user_memcpy.S
@@ -1,3 +1,4 @@
+! SPDX-License-Identifier: GPL-2.0
 !
 ! Fast SH memcpy
 !
diff --git a/arch/sh/lib64/memcpy.S b/arch/sh/lib64/memcpy.S
index 5d682e0ee24f..231ea595b39a 100644
--- a/arch/sh/lib64/memcpy.S
+++ b/arch/sh/lib64/memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Cloned and hacked for uClibc by Paul Mundt, December 2003 */
 /* Modified by SuperH, Inc. September 2003 */
 !
diff --git a/arch/sh/lib64/memset.S b/arch/sh/lib64/memset.S
index 2d37b0488552..453aa5f1d263 100644
--- a/arch/sh/lib64/memset.S
+++ b/arch/sh/lib64/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Cloned and hacked for uClibc by Paul Mundt, December 2003 */
 /* Modified by SuperH, Inc. September 2003 */
 !
diff --git a/arch/sh/lib64/sdivsi3.S b/arch/sh/lib64/sdivsi3.S
index 1963bbd42288..b422e2374430 100644
--- a/arch/sh/lib64/sdivsi3.S
+++ b/arch/sh/lib64/sdivsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.global	__sdivsi3
 	.global	__sdivsi3_1
 	.global	__sdivsi3_2
diff --git a/arch/sh/lib64/strcpy.S b/arch/sh/lib64/strcpy.S
index ea7c9c533eea..b61631e523d4 100644
--- a/arch/sh/lib64/strcpy.S
+++ b/arch/sh/lib64/strcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Cloned and hacked for uClibc by Paul Mundt, December 2003 */
 /* Modified by SuperH, Inc. September 2003 */
 ! Entry: arg0: destination
diff --git a/arch/sh/lib64/strlen.S b/arch/sh/lib64/strlen.S
index cbc0d912e5f3..c00b972f9999 100644
--- a/arch/sh/lib64/strlen.S
+++ b/arch/sh/lib64/strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Simplistic strlen() implementation for SHmedia.
  *
diff --git a/arch/sh/lib64/udivdi3.S b/arch/sh/lib64/udivdi3.S
index 6895c0225b85..c032cb157589 100644
--- a/arch/sh/lib64/udivdi3.S
+++ b/arch/sh/lib64/udivdi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.section	.text..SHmedia32,"ax"
 	.align	2
 	.global	__udivdi3
diff --git a/arch/sh/lib64/udivsi3.S b/arch/sh/lib64/udivsi3.S
index e68120e4b847..e4788fb4fe82 100644
--- a/arch/sh/lib64/udivsi3.S
+++ b/arch/sh/lib64/udivsi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.global	__udivsi3
 	.section	.text..SHmedia32,"ax"
 	.align	2
diff --git a/arch/sh/math-emu/sfp-util.h b/arch/sh/math-emu/sfp-util.h
index 8ae1bd310ad0..784f541344f3 100644
--- a/arch/sh/math-emu/sfp-util.h
+++ b/arch/sh/math-emu/sfp-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * These are copied from glibc/stdlib/longlong.h
  */
diff --git a/arch/sh/mm/Kconfig b/arch/sh/mm/Kconfig
index dba285e86808..50cdd1349015 100644
--- a/arch/sh/mm/Kconfig
+++ b/arch/sh/mm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Memory management options"
 
 config QUICKLIST
diff --git a/arch/sh/mm/Makefile b/arch/sh/mm/Makefile
index 92c3bd96aee5..fbe5e79751b3 100644
--- a/arch/sh/mm/Makefile
+++ b/arch/sh/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux SuperH-specific parts of the memory manager.
 #
diff --git a/arch/sh/mm/extable_32.c b/arch/sh/mm/extable_32.c
index 940e871bc816..14312027bb08 100644
--- a/arch/sh/mm/extable_32.c
+++ b/arch/sh/mm/extable_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sh/mm/extable.c
  *  Taken from:
diff --git a/arch/sh/mm/flush-sh4.c b/arch/sh/mm/flush-sh4.c
index 0b85dd9dd3a7..8b8ef8972104 100644
--- a/arch/sh/mm/flush-sh4.c
+++ b/arch/sh/mm/flush-sh4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <asm/mmu_context.h>
 #include <asm/cache_insns.h>
diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c
index 063c298ba56c..8045b5bb7075 100644
--- a/arch/sh/mm/gup.c
+++ b/arch/sh/mm/gup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Lockless get_user_pages_fast for SuperH
  *
diff --git a/arch/sh/mm/hugetlbpage.c b/arch/sh/mm/hugetlbpage.c
index d2412d2d6462..960deb1f24a1 100644
--- a/arch/sh/mm/hugetlbpage.c
+++ b/arch/sh/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sh/mm/hugetlbpage.c
  *
diff --git a/arch/sh/mm/ioremap_fixed.c b/arch/sh/mm/ioremap_fixed.c
index efbe84af9983..927a1294c465 100644
--- a/arch/sh/mm/ioremap_fixed.c
+++ b/arch/sh/mm/ioremap_fixed.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Re-map IO memory to kernel address space so that we can access it.
  *
diff --git a/arch/sh/mm/pgtable.c b/arch/sh/mm/pgtable.c
index a62bd8696779..5c8f9247c3c2 100644
--- a/arch/sh/mm/pgtable.c
+++ b/arch/sh/mm/pgtable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/slab.h>
 
diff --git a/arch/sh/mm/uncached.c b/arch/sh/mm/uncached.c
index a7767da815e9..010010bf205a 100644
--- a/arch/sh/mm/uncached.c
+++ b/arch/sh/mm/uncached.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/module.h>
 #include <asm/sizes.h>
diff --git a/arch/sh/oprofile/Makefile b/arch/sh/oprofile/Makefile
index ce3b119021e7..d478dd8dac0b 100644
--- a/arch/sh/oprofile/Makefile
+++ b/arch/sh/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 CFLAGS_common.o	+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
diff --git a/arch/sh/tools/gen-mach-types b/arch/sh/tools/gen-mach-types
index f5ff7c5d8913..6d7c2d8eaf55 100644
--- a/arch/sh/tools/gen-mach-types
+++ b/arch/sh/tools/gen-mach-types
@@ -1,4 +1,5 @@
 #!/bin/awk
+# SPDX-License-Identifier: GPL-2.0
 #
 # Awk script to generate include/generated/machtypes.h
 # Heavily based on arch/arm/tools/gen-mach-types
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 0be3828752e5..4e83f950713e 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -44,7 +44,6 @@ config SPARC
 	select ARCH_HAS_SG_CHAIN
 	select CPU_NO_EFFICIENT_FFS
 	select LOCKDEP_SMALL if LOCKDEP
-	select ARCH_WANT_RELAX_ORDER
 
 config SPARC32
 	def_bool !64BIT
diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug
index 6db35fba79fd..4aef29a11925 100644
--- a/arch/sparc/Kconfig.debug
+++ b/arch/sparc/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile
index 8496a074bd0e..dbc448923f48 100644
--- a/arch/sparc/Makefile
+++ b/arch/sparc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # sparc/Makefile
 #
diff --git a/arch/sparc/boot/Makefile b/arch/sparc/boot/Makefile
index 6a4ceae5ec67..ec8cd703b708 100644
--- a/arch/sparc/boot/Makefile
+++ b/arch/sparc/boot/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Sparc boot stuff.
 #
 # Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile
index 5d469d81761f..818d3aa5172e 100644
--- a/arch/sparc/crypto/Makefile
+++ b/arch/sparc/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific CryptoAPI modules.
 #
diff --git a/arch/sparc/crypto/aes_asm.S b/arch/sparc/crypto/aes_asm.S
index 1cda8aa7cb85..155cefb98520 100644
--- a/arch/sparc/crypto/aes_asm.S
+++ b/arch/sparc/crypto/aes_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/crypto/camellia_asm.S b/arch/sparc/crypto/camellia_asm.S
index cc39553a4e43..dcdc9193fcd7 100644
--- a/arch/sparc/crypto/camellia_asm.S
+++ b/arch/sparc/crypto/camellia_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/crypto/crc32c_asm.S b/arch/sparc/crypto/crc32c_asm.S
index 2b1976e765b5..b8659a479242 100644
--- a/arch/sparc/crypto/crc32c_asm.S
+++ b/arch/sparc/crypto/crc32c_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 #include <asm/asi.h>
diff --git a/arch/sparc/crypto/crop_devid.c b/arch/sparc/crypto/crop_devid.c
index 5f5724a0ae22..83fc4536dcd5 100644
--- a/arch/sparc/crypto/crop_devid.c
+++ b/arch/sparc/crypto/crop_devid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/of_device.h>
 
diff --git a/arch/sparc/crypto/des_asm.S b/arch/sparc/crypto/des_asm.S
index b5c8fc269b5f..7157468a679d 100644
--- a/arch/sparc/crypto/des_asm.S
+++ b/arch/sparc/crypto/des_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/crypto/md5_asm.S b/arch/sparc/crypto/md5_asm.S
index 3150404e602e..7a6637455f37 100644
--- a/arch/sparc/crypto/md5_asm.S
+++ b/arch/sparc/crypto/md5_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/crypto/opcodes.h b/arch/sparc/crypto/opcodes.h
index 19cbaea6976f..417b6a10a337 100644
--- a/arch/sparc/crypto/opcodes.h
+++ b/arch/sparc/crypto/opcodes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OPCODES_H
 #define _OPCODES_H
 
diff --git a/arch/sparc/crypto/sha1_asm.S b/arch/sparc/crypto/sha1_asm.S
index 219d10c5ae0e..7d8bf354f0e7 100644
--- a/arch/sparc/crypto/sha1_asm.S
+++ b/arch/sparc/crypto/sha1_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/crypto/sha256_asm.S b/arch/sparc/crypto/sha256_asm.S
index b5f3d5826eb4..0b39ec7d7ca2 100644
--- a/arch/sparc/crypto/sha256_asm.S
+++ b/arch/sparc/crypto/sha256_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/crypto/sha512_asm.S b/arch/sparc/crypto/sha512_asm.S
index 54bfba713c0e..b2f6e6728802 100644
--- a/arch/sparc/crypto/sha512_asm.S
+++ b/arch/sparc/crypto/sha512_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/visasm.h>
 
diff --git a/arch/sparc/include/asm/agp.h b/arch/sparc/include/asm/agp.h
index 70f52c1661bc..efe0d6a12e5a 100644
--- a/arch/sparc/include/asm/agp.h
+++ b/arch/sparc/include/asm/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AGP_H
 #define AGP_H 1
 
diff --git a/arch/sparc/include/asm/apb.h b/arch/sparc/include/asm/apb.h
index 8f3b57db810f..b1dfb1a99f07 100644
--- a/arch/sparc/include/asm/apb.h
+++ b/arch/sparc/include/asm/apb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * apb.h: Advanced PCI Bridge Configuration Registers and Bits
  *
diff --git a/arch/sparc/include/asm/asm-prototypes.h b/arch/sparc/include/asm/asm-prototypes.h
index d381e11c5dbb..96e0972e8dbf 100644
--- a/arch/sparc/include/asm/asm-prototypes.h
+++ b/arch/sparc/include/asm/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2017 Oracle and/or its affiliates. All rights reserved.
  */
diff --git a/arch/sparc/include/asm/asm.h b/arch/sparc/include/asm/asm.h
index e8e1d94b4cc9..eaed0117a838 100644
--- a/arch/sparc/include/asm/asm.h
+++ b/arch/sparc/include/asm/asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_ASM_H
 #define _SPARC_ASM_H
 
diff --git a/arch/sparc/include/asm/asmmacro.h b/arch/sparc/include/asm/asmmacro.h
index a0e28ef02558..49aaf6f3bc55 100644
--- a/arch/sparc/include/asm/asmmacro.h
+++ b/arch/sparc/include/asm/asmmacro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* asmmacro.h: Assembler macros.
  *
  * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)
diff --git a/arch/sparc/include/asm/atomic.h b/arch/sparc/include/asm/atomic.h
index 8ff83d8cc33f..425151cc4808 100644
--- a/arch/sparc/include/asm/atomic.h
+++ b/arch/sparc/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_ATOMIC_H
 #define ___ASM_SPARC_ATOMIC_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index 7643e979e333..d13ce517f4b9 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atomic.h: These still suck, but the I-cache hit rate is higher.
  *
  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
@@ -31,7 +32,7 @@ void atomic_set(atomic_t *, int);
 
 #define atomic_set_release(v, i)	atomic_set((v), (i))
 
-#define atomic_read(v)          ACCESS_ONCE((v)->counter)
+#define atomic_read(v)          READ_ONCE((v)->counter)
 
 #define atomic_add(i, v)	((void)atomic_add_return( (int)(i), (v)))
 #define atomic_sub(i, v)	((void)atomic_add_return(-(int)(i), (v)))
diff --git a/arch/sparc/include/asm/atomic_64.h b/arch/sparc/include/asm/atomic_64.h
index 24827a3f733a..abad97edf736 100644
--- a/arch/sparc/include/asm/atomic_64.h
+++ b/arch/sparc/include/asm/atomic_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atomic.h: Thankfully the V9 is at least reasonable for this
  *           stuff.
  *
diff --git a/arch/sparc/include/asm/auxio.h b/arch/sparc/include/asm/auxio.h
index 3e09a07b77e9..a2681052e900 100644
--- a/arch/sparc/include/asm/auxio.h
+++ b/arch/sparc/include/asm/auxio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_AUXIO_H
 #define ___ASM_SPARC_AUXIO_H
 
diff --git a/arch/sparc/include/asm/auxio_32.h b/arch/sparc/include/asm/auxio_32.h
index 5d685df427b4..852457c7a265 100644
--- a/arch/sparc/include/asm/auxio_32.h
+++ b/arch/sparc/include/asm/auxio_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * auxio.h:  Definitions and code for the Auxiliary I/O register.
  *
diff --git a/arch/sparc/include/asm/auxio_64.h b/arch/sparc/include/asm/auxio_64.h
index 6079e59a7ad1..ae1ed41987db 100644
--- a/arch/sparc/include/asm/auxio_64.h
+++ b/arch/sparc/include/asm/auxio_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * auxio.h:  Definitions and code for the Auxiliary I/O registers.
  *
diff --git a/arch/sparc/include/asm/backoff.h b/arch/sparc/include/asm/backoff.h
index 4e02086b839c..8625946d8d00 100644
--- a/arch/sparc/include/asm/backoff.h
+++ b/arch/sparc/include/asm/backoff.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_BACKOFF_H
 #define _SPARC64_BACKOFF_H
 
diff --git a/arch/sparc/include/asm/barrier.h b/arch/sparc/include/asm/barrier.h
index b25f02a029e0..c10b4164be59 100644
--- a/arch/sparc/include/asm/barrier.h
+++ b/arch/sparc/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_BARRIER_H
 #define ___ASM_SPARC_BARRIER_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/barrier_32.h b/arch/sparc/include/asm/barrier_32.h
index 8059130a6cee..304f9c3f7c4a 100644
--- a/arch/sparc/include/asm/barrier_32.h
+++ b/arch/sparc/include/asm/barrier_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_BARRIER_H
 #define __SPARC_BARRIER_H
 
diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h
index c9f6ee64f41d..9fb148bd3c97 100644
--- a/arch/sparc/include/asm/barrier_64.h
+++ b/arch/sparc/include/asm/barrier_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC64_BARRIER_H
 #define __SPARC64_BARRIER_H
 
diff --git a/arch/sparc/include/asm/bbc.h b/arch/sparc/include/asm/bbc.h
index 423a85800aae..00a4f116144d 100644
--- a/arch/sparc/include/asm/bbc.h
+++ b/arch/sparc/include/asm/bbc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * bbc.h: Defines for BootBus Controller found on UltraSPARC-III
  *        systems.
diff --git a/arch/sparc/include/asm/bitext.h b/arch/sparc/include/asm/bitext.h
index 9c988bf3adb6..2c2a2d85e8ec 100644
--- a/arch/sparc/include/asm/bitext.h
+++ b/arch/sparc/include/asm/bitext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * bitext.h: Bit string operations on the sparc, specific to architecture.
  *
diff --git a/arch/sparc/include/asm/bitops.h b/arch/sparc/include/asm/bitops.h
index b1edd94bd64f..4c431d274926 100644
--- a/arch/sparc/include/asm/bitops.h
+++ b/arch/sparc/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_BITOPS_H
 #define ___ASM_SPARC_BITOPS_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h
index 600ed1d9c8c8..0ceff3b915a8 100644
--- a/arch/sparc/include/asm/bitops_32.h
+++ b/arch/sparc/include/asm/bitops_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * bitops.h: Bit string operations on the Sparc.
  *
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h
index 2d522402a937..a90eea24b286 100644
--- a/arch/sparc/include/asm/bitops_64.h
+++ b/arch/sparc/include/asm/bitops_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * bitops.h: Bit string operations on the V9.
  *
diff --git a/arch/sparc/include/asm/btext.h b/arch/sparc/include/asm/btext.h
index 75a32b109e15..01cdc4265733 100644
--- a/arch/sparc/include/asm/btext.h
+++ b/arch/sparc/include/asm/btext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_BTEXT_H
 #define _SPARC_BTEXT_H
 
diff --git a/arch/sparc/include/asm/bug.h b/arch/sparc/include/asm/bug.h
index eaa8f8d38125..6f17528356b2 100644
--- a/arch/sparc/include/asm/bug.h
+++ b/arch/sparc/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_BUG_H
 #define _SPARC_BUG_H
 
diff --git a/arch/sparc/include/asm/bugs.h b/arch/sparc/include/asm/bugs.h
index 61d86bbbe2b2..02fa369b9c21 100644
--- a/arch/sparc/include/asm/bugs.h
+++ b/arch/sparc/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include/asm/bugs.h:  Sparc probes for various bugs.
  *
  * Copyright (C) 1996, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/cache.h b/arch/sparc/include/asm/cache.h
index 5bb6991b4857..dcfd58118c11 100644
--- a/arch/sparc/include/asm/cache.h
+++ b/arch/sparc/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* cache.h:  Cache specific code for the Sparc.  These include flushing
  *           and direct tag/data line access.
  *
diff --git a/arch/sparc/include/asm/cacheflush.h b/arch/sparc/include/asm/cacheflush.h
index f6c4839b8388..881ac76eab93 100644
--- a/arch/sparc/include/asm/cacheflush.h
+++ b/arch/sparc/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_CACHEFLUSH_H
 #define ___ASM_SPARC_CACHEFLUSH_H
 
diff --git a/arch/sparc/include/asm/cacheflush_32.h b/arch/sparc/include/asm/cacheflush_32.h
index 12164006181c..fb66094a2c30 100644
--- a/arch/sparc/include/asm/cacheflush_32.h
+++ b/arch/sparc/include/asm/cacheflush_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_CACHEFLUSH_H
 #define _SPARC_CACHEFLUSH_H
 
diff --git a/arch/sparc/include/asm/cacheflush_64.h b/arch/sparc/include/asm/cacheflush_64.h
index 68513c41e10d..e7517434d1fa 100644
--- a/arch/sparc/include/asm/cacheflush_64.h
+++ b/arch/sparc/include/asm/cacheflush_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_CACHEFLUSH_H
 #define _SPARC64_CACHEFLUSH_H
 
diff --git a/arch/sparc/include/asm/cachetlb_32.h b/arch/sparc/include/asm/cachetlb_32.h
index efb19889a083..534da70c6357 100644
--- a/arch/sparc/include/asm/cachetlb_32.h
+++ b/arch/sparc/include/asm/cachetlb_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_CACHETLB_H
 #define _SPARC_CACHETLB_H
 
diff --git a/arch/sparc/include/asm/chafsr.h b/arch/sparc/include/asm/chafsr.h
index 85c69b38220b..01540eca1671 100644
--- a/arch/sparc/include/asm/chafsr.h
+++ b/arch/sparc/include/asm/chafsr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_CHAFSR_H
 #define _SPARC64_CHAFSR_H
 
diff --git a/arch/sparc/include/asm/checksum.h b/arch/sparc/include/asm/checksum.h
index 7ac0d7497bc5..c3be56e2e768 100644
--- a/arch/sparc/include/asm/checksum.h
+++ b/arch/sparc/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_CHECKSUM_H
 #define ___ASM_SPARC_CHECKSUM_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/checksum_32.h b/arch/sparc/include/asm/checksum_32.h
index e25af5fc99fd..d1e53d7aed39 100644
--- a/arch/sparc/include/asm/checksum_32.h
+++ b/arch/sparc/include/asm/checksum_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_CHECKSUM_H
 #define __SPARC_CHECKSUM_H
 
diff --git a/arch/sparc/include/asm/checksum_64.h b/arch/sparc/include/asm/checksum_64.h
index 96a5ed58cea6..e52450930e4e 100644
--- a/arch/sparc/include/asm/checksum_64.h
+++ b/arch/sparc/include/asm/checksum_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC64_CHECKSUM_H
 #define __SPARC64_CHECKSUM_H
 
diff --git a/arch/sparc/include/asm/chmctrl.h b/arch/sparc/include/asm/chmctrl.h
index 859b4a4b0d30..96f043cb2c3e 100644
--- a/arch/sparc/include/asm/chmctrl.h
+++ b/arch/sparc/include/asm/chmctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_CHMCTRL_H
 #define _SPARC64_CHMCTRL_H
 
diff --git a/arch/sparc/include/asm/cmpxchg.h b/arch/sparc/include/asm/cmpxchg.h
index 9355893efa52..b7955c6b91fc 100644
--- a/arch/sparc/include/asm/cmpxchg.h
+++ b/arch/sparc/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_CMPXCHG_H
 #define ___ASM_SPARC_CMPXCHG_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/cmpxchg_32.h b/arch/sparc/include/asm/cmpxchg_32.h
index 83ffb83c5397..3e3823db303e 100644
--- a/arch/sparc/include/asm/cmpxchg_32.h
+++ b/arch/sparc/include/asm/cmpxchg_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 32-bit atomic xchg() and cmpxchg() definitions.
  *
  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/cmpxchg_64.h b/arch/sparc/include/asm/cmpxchg_64.h
index 4028f4f1e561..f71ef3729888 100644
--- a/arch/sparc/include/asm/cmpxchg_64.h
+++ b/arch/sparc/include/asm/cmpxchg_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 64-bit atomic xchg() and cmpxchg() definitions.
  *
  * Copyright (C) 1996, 1997, 2000 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h
index 6f251c4d613e..977c3f280ba1 100644
--- a/arch/sparc/include/asm/compat.h
+++ b/arch/sparc/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC64_COMPAT_H
 #define _ASM_SPARC64_COMPAT_H
 /*
diff --git a/arch/sparc/include/asm/compat_signal.h b/arch/sparc/include/asm/compat_signal.h
index 4b027b1044fa..e5f7a7f281d2 100644
--- a/arch/sparc/include/asm/compat_signal.h
+++ b/arch/sparc/include/asm/compat_signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _COMPAT_SIGNAL_H
 #define _COMPAT_SIGNAL_H
 
diff --git a/arch/sparc/include/asm/contregs.h b/arch/sparc/include/asm/contregs.h
index b8abdfcf5555..4df56a6ba7d9 100644
--- a/arch/sparc/include/asm/contregs.h
+++ b/arch/sparc/include/asm/contregs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_CONTREGS_H
 #define _SPARC_CONTREGS_H
 
diff --git a/arch/sparc/include/asm/cpu_type.h b/arch/sparc/include/asm/cpu_type.h
index 84d7d83b8084..2b59799859d1 100644
--- a/arch/sparc/include/asm/cpu_type.h
+++ b/arch/sparc/include/asm/cpu_type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CPU_TYPE_H
 #define __ASM_CPU_TYPE_H
 
diff --git a/arch/sparc/include/asm/cpudata.h b/arch/sparc/include/asm/cpudata.h
index 128b56b08676..d213165ee713 100644
--- a/arch/sparc/include/asm/cpudata.h
+++ b/arch/sparc/include/asm/cpudata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_CPUDATA_H
 #define ___ASM_SPARC_CPUDATA_H
 
diff --git a/arch/sparc/include/asm/cpudata_32.h b/arch/sparc/include/asm/cpudata_32.h
index 05f366379f53..895d0964b802 100644
--- a/arch/sparc/include/asm/cpudata_32.h
+++ b/arch/sparc/include/asm/cpudata_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* cpudata.h: Per-cpu parameters.
  *
  * Copyright (C) 2004 Keith M Wesolowski (wesolows@foobazco.org)
diff --git a/arch/sparc/include/asm/cpudata_64.h b/arch/sparc/include/asm/cpudata_64.h
index 5b0ed48e5b0c..666d6b5c0440 100644
--- a/arch/sparc/include/asm/cpudata_64.h
+++ b/arch/sparc/include/asm/cpudata_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* cpudata.h: Per-cpu parameters.
  *
  * Copyright (C) 2003, 2005, 2006 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/current.h b/arch/sparc/include/asm/current.h
index 10a0df55a574..c68312a89d14 100644
--- a/arch/sparc/include/asm/current.h
+++ b/arch/sparc/include/asm/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include/asm/current.h
  *
  * Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
diff --git a/arch/sparc/include/asm/dcr.h b/arch/sparc/include/asm/dcr.h
index 620c9ba642e9..c810e1b4285c 100644
--- a/arch/sparc/include/asm/dcr.h
+++ b/arch/sparc/include/asm/dcr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_DCR_H
 #define _SPARC64_DCR_H
 
diff --git a/arch/sparc/include/asm/dcu.h b/arch/sparc/include/asm/dcu.h
index 0f704e106a1b..93f32507125e 100644
--- a/arch/sparc/include/asm/dcu.h
+++ b/arch/sparc/include/asm/dcu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_DCU_H
 #define _SPARC64_DCU_H
 
diff --git a/arch/sparc/include/asm/delay.h b/arch/sparc/include/asm/delay.h
index 467caa2a97a0..c96af9b91661 100644
--- a/arch/sparc/include/asm/delay.h
+++ b/arch/sparc/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_DELAY_H
 #define ___ASM_SPARC_DELAY_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/delay_32.h b/arch/sparc/include/asm/delay_32.h
index 3fb8ca144b4f..0e6dfe857d67 100644
--- a/arch/sparc/include/asm/delay_32.h
+++ b/arch/sparc/include/asm/delay_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * delay.h: Linux delay routines on the Sparc.
  *
diff --git a/arch/sparc/include/asm/delay_64.h b/arch/sparc/include/asm/delay_64.h
index 0ba5424856d8..22213b1c119d 100644
--- a/arch/sparc/include/asm/delay_64.h
+++ b/arch/sparc/include/asm/delay_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* delay.h: Linux delay routines on sparc64.
  *
  * Copyright (C) 1996, 2004, 2007 David S. Miller (davem@davemloft.net).
diff --git a/arch/sparc/include/asm/dma-mapping.h b/arch/sparc/include/asm/dma-mapping.h
index 60bf1633d554..2f3490dd37de 100644
--- a/arch/sparc/include/asm/dma-mapping.h
+++ b/arch/sparc/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_DMA_MAPPING_H
 #define ___ASM_SPARC_DMA_MAPPING_H
 
diff --git a/arch/sparc/include/asm/dma.h b/arch/sparc/include/asm/dma.h
index 3d434ef5eae3..a1d7c86917c6 100644
--- a/arch/sparc/include/asm/dma.h
+++ b/arch/sparc/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_DMA_H
 #define _ASM_SPARC_DMA_H
 
diff --git a/arch/sparc/include/asm/ebus_dma.h b/arch/sparc/include/asm/ebus_dma.h
index fcfb4948147f..75563ed090f5 100644
--- a/arch/sparc/include/asm/ebus_dma.h
+++ b/arch/sparc/include/asm/ebus_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPARC_EBUS_DMA_H
 #define __ASM_SPARC_EBUS_DMA_H
 
diff --git a/arch/sparc/include/asm/ecc.h b/arch/sparc/include/asm/ecc.h
index ccb84b66fef1..3d5edee36b4c 100644
--- a/arch/sparc/include/asm/ecc.h
+++ b/arch/sparc/include/asm/ecc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ecc.h: Definitions and defines for the external cache/memory
  *        controller on the sun4m.
diff --git a/arch/sparc/include/asm/elf.h b/arch/sparc/include/asm/elf.h
index 0a2816c50b07..bbfb4b002ff3 100644
--- a/arch/sparc/include/asm/elf.h
+++ b/arch/sparc/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_ELF_H
 #define ___ASM_SPARC_ELF_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/elf_32.h b/arch/sparc/include/asm/elf_32.h
index a24e41fcdde1..37a6016c9ccd 100644
--- a/arch/sparc/include/asm/elf_32.h
+++ b/arch/sparc/include/asm/elf_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASMSPARC_ELF_H
 #define __ASMSPARC_ELF_H
 
diff --git a/arch/sparc/include/asm/elf_64.h b/arch/sparc/include/asm/elf_64.h
index 3f2d403873bd..5894389f5ed5 100644
--- a/arch/sparc/include/asm/elf_64.h
+++ b/arch/sparc/include/asm/elf_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPARC64_ELF_H
 #define __ASM_SPARC64_ELF_H
 
diff --git a/arch/sparc/include/asm/estate.h b/arch/sparc/include/asm/estate.h
index 520c08560d1b..e5e0f84accea 100644
--- a/arch/sparc/include/asm/estate.h
+++ b/arch/sparc/include/asm/estate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_ESTATE_H
 #define _SPARC64_ESTATE_H
 
diff --git a/arch/sparc/include/asm/extable_64.h b/arch/sparc/include/asm/extable_64.h
index 1121cb056ffb..5a0171907b7e 100644
--- a/arch/sparc/include/asm/extable_64.h
+++ b/arch/sparc/include/asm/extable_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_EXTABLE64_H
 #define __ASM_EXTABLE64_H
 /*
diff --git a/arch/sparc/include/asm/fb.h b/arch/sparc/include/asm/fb.h
index 2173432ad7f7..f699962e9ddf 100644
--- a/arch/sparc/include/asm/fb.h
+++ b/arch/sparc/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_FB_H_
 #define _SPARC_FB_H_
 #include <linux/console.h>
diff --git a/arch/sparc/include/asm/fbio.h b/arch/sparc/include/asm/fbio.h
index 1d9afe277e9c..02654cb95dec 100644
--- a/arch/sparc/include/asm/fbio.h
+++ b/arch/sparc/include/asm/fbio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_FBIO_H
 #define __LINUX_FBIO_H
 
diff --git a/arch/sparc/include/asm/fhc.h b/arch/sparc/include/asm/fhc.h
index 57f1b303ad54..0627fa126540 100644
--- a/arch/sparc/include/asm/fhc.h
+++ b/arch/sparc/include/asm/fhc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* fhc.h: FHC and Clock board register definitions.
  *
  * Copyright (C) 1997, 1999 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/include/asm/floppy.h b/arch/sparc/include/asm/floppy.h
index faebd335b600..4b315802e635 100644
--- a/arch/sparc/include/asm/floppy.h
+++ b/arch/sparc/include/asm/floppy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_FLOPPY_H
 #define ___ASM_SPARC_FLOPPY_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/floppy_32.h b/arch/sparc/include/asm/floppy_32.h
index 071b83e52f15..dd63aa301658 100644
--- a/arch/sparc/include/asm/floppy_32.h
+++ b/arch/sparc/include/asm/floppy_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* asm/floppy.h: Sparc specific parts of the Floppy driver.
  *
  * Copyright (C) 1995 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/floppy_64.h b/arch/sparc/include/asm/floppy_64.h
index 625756406a7e..22fbeab92a4c 100644
--- a/arch/sparc/include/asm/floppy_64.h
+++ b/arch/sparc/include/asm/floppy_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* floppy.h: Sparc specific parts of the Floppy driver.
  *
  * Copyright (C) 1996, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/fpumacro.h b/arch/sparc/include/asm/fpumacro.h
index cc463fec806f..bc378df97fa8 100644
--- a/arch/sparc/include/asm/fpumacro.h
+++ b/arch/sparc/include/asm/fpumacro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* fpumacro.h: FPU related macros.
  *
  * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/include/asm/ftrace.h b/arch/sparc/include/asm/ftrace.h
index 62755a339a59..d3aa1a524431 100644
--- a/arch/sparc/include/asm/ftrace.h
+++ b/arch/sparc/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC64_FTRACE
 #define _ASM_SPARC64_FTRACE
 
diff --git a/arch/sparc/include/asm/futex.h b/arch/sparc/include/asm/futex.h
index 736335f36713..75a13a20cc64 100644
--- a/arch/sparc/include/asm/futex.h
+++ b/arch/sparc/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_FUTEX_H
 #define ___ASM_SPARC_FUTEX_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h
index 1cfd89d92208..0865ce77ec00 100644
--- a/arch/sparc/include/asm/futex_64.h
+++ b/arch/sparc/include/asm/futex_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_FUTEX_H
 #define _SPARC64_FUTEX_H
 
diff --git a/arch/sparc/include/asm/hardirq.h b/arch/sparc/include/asm/hardirq.h
index 44d4e2345148..a185f6647348 100644
--- a/arch/sparc/include/asm/hardirq.h
+++ b/arch/sparc/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_HARDIRQ_H
 #define ___ASM_SPARC_HARDIRQ_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/hardirq_32.h b/arch/sparc/include/asm/hardirq_32.h
index ee93923b7f82..9830d8731a09 100644
--- a/arch/sparc/include/asm/hardirq_32.h
+++ b/arch/sparc/include/asm/hardirq_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* hardirq.h: 32-bit Sparc hard IRQ support.
  *
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/include/asm/hardirq_64.h b/arch/sparc/include/asm/hardirq_64.h
index f478ff1ddd02..f56540271993 100644
--- a/arch/sparc/include/asm/hardirq_64.h
+++ b/arch/sparc/include/asm/hardirq_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* hardirq.h: 64-bit Sparc hard IRQ support.
  *
  * Copyright (C) 1997, 1998, 2005 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/head.h b/arch/sparc/include/asm/head.h
index be8f03f3e731..25299b701df5 100644
--- a/arch/sparc/include/asm/head.h
+++ b/arch/sparc/include/asm/head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_HEAD_H
 #define ___ASM_SPARC_HEAD_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/head_32.h b/arch/sparc/include/asm/head_32.h
index 6fc60fd182c4..d2809c859d0c 100644
--- a/arch/sparc/include/asm/head_32.h
+++ b/arch/sparc/include/asm/head_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_HEAD_H
 #define __SPARC_HEAD_H
 
diff --git a/arch/sparc/include/asm/head_64.h b/arch/sparc/include/asm/head_64.h
index f0700cfeedd7..69a2062d992c 100644
--- a/arch/sparc/include/asm/head_64.h
+++ b/arch/sparc/include/asm/head_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_HEAD_H
 #define _SPARC64_HEAD_H
 
diff --git a/arch/sparc/include/asm/hibernate.h b/arch/sparc/include/asm/hibernate.h
index 2ec34f842249..3bb0a96ec4ef 100644
--- a/arch/sparc/include/asm/hibernate.h
+++ b/arch/sparc/include/asm/hibernate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hibernate.h:  Hibernaton support specific for sparc64.
  *
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index 92ded294a4ec..18d776925c45 100644
--- a/arch/sparc/include/asm/highmem.h
+++ b/arch/sparc/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * highmem.h: virtual kernel memory mappings for high memory
  *
diff --git a/arch/sparc/include/asm/hugetlb.h b/arch/sparc/include/asm/hugetlb.h
index 0ca7caab1b06..300557c66698 100644
--- a/arch/sparc/include/asm/hugetlb.h
+++ b/arch/sparc/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC64_HUGETLB_H
 #define _ASM_SPARC64_HUGETLB_H
 
diff --git a/arch/sparc/include/asm/hvtramp.h b/arch/sparc/include/asm/hvtramp.h
index 04b56f862bbe..688ea43af0f5 100644
--- a/arch/sparc/include/asm/hvtramp.h
+++ b/arch/sparc/include/asm/hvtramp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_HVTRAP_H
 #define _SPARC64_HVTRAP_H
 
diff --git a/arch/sparc/include/asm/hypervisor.h b/arch/sparc/include/asm/hypervisor.h
index 3dc9215d0357..89a0c57aed59 100644
--- a/arch/sparc/include/asm/hypervisor.h
+++ b/arch/sparc/include/asm/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_HYPERVISOR_H
 #define _SPARC64_HYPERVISOR_H
 
diff --git a/arch/sparc/include/asm/ide.h b/arch/sparc/include/asm/ide.h
index b7af3d658239..09f026585550 100644
--- a/arch/sparc/include/asm/ide.h
+++ b/arch/sparc/include/asm/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ide.h: SPARC PCI specific IDE glue.
  *
  * Copyright (C) 1997  David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/idprom.h b/arch/sparc/include/asm/idprom.h
index 3793f7f91c42..4c372199cd70 100644
--- a/arch/sparc/include/asm/idprom.h
+++ b/arch/sparc/include/asm/idprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * idprom.h: Macros and defines for idprom routines
  *
diff --git a/arch/sparc/include/asm/intr_queue.h b/arch/sparc/include/asm/intr_queue.h
index 206077dedc2a..d61be2a3aac1 100644
--- a/arch/sparc/include/asm/intr_queue.h
+++ b/arch/sparc/include/asm/intr_queue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_INTR_QUEUE_H
 #define _SPARC64_INTR_QUEUE_H
 
diff --git a/arch/sparc/include/asm/io-unit.h b/arch/sparc/include/asm/io-unit.h
index 04a9701e7202..3ce96e8c088f 100644
--- a/arch/sparc/include/asm/io-unit.h
+++ b/arch/sparc/include/asm/io-unit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* io-unit.h: Definitions for the sun4d IO-UNIT.
  *
  * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/include/asm/io.h b/arch/sparc/include/asm/io.h
index f6902cf3cbe9..2eefa526b38f 100644
--- a/arch/sparc/include/asm/io.h
+++ b/arch/sparc/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_IO_H
 #define ___ASM_SPARC_IO_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index 4dd268a3a8b0..cd51a89b393c 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_IO_H
 #define __SPARC_IO_H
 
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index c32fa3f752c8..9a1e9cbc7e6d 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC64_IO_H
 #define __SPARC64_IO_H
 
diff --git a/arch/sparc/include/asm/ioctls.h b/arch/sparc/include/asm/ioctls.h
index 77413b7e3a18..c92ac780c39f 100644
--- a/arch/sparc/include/asm/ioctls.h
+++ b/arch/sparc/include/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_IOCTLS_H
 #define _ASM_SPARC_IOCTLS_H
 
diff --git a/arch/sparc/include/asm/iommu.h b/arch/sparc/include/asm/iommu.h
index e650965b4a8d..37935cb34865 100644
--- a/arch/sparc/include/asm/iommu.h
+++ b/arch/sparc/include/asm/iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_IOMMU_H
 #define ___ASM_SPARC_IOMMU_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/iommu_32.h b/arch/sparc/include/asm/iommu_32.h
index f6c066b52fd6..af51cd5ea3c1 100644
--- a/arch/sparc/include/asm/iommu_32.h
+++ b/arch/sparc/include/asm/iommu_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* iommu.h: Definitions for the sun4m IOMMU.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/include/asm/iommu_64.h b/arch/sparc/include/asm/iommu_64.h
index f24f356f2503..9ed6b54caa4b 100644
--- a/arch/sparc/include/asm/iommu_64.h
+++ b/arch/sparc/include/asm/iommu_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* iommu.h: Definitions for the sun5 IOMMU.
  *
  * Copyright (C) 1996, 1999, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/irq.h b/arch/sparc/include/asm/irq.h
index 3b44a6a14074..a2efc274dbb0 100644
--- a/arch/sparc/include/asm/irq.h
+++ b/arch/sparc/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_IRQ_H
 #define ___ASM_SPARC_IRQ_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/irq_32.h b/arch/sparc/include/asm/irq_32.h
index eecd3d8442c9..43ec2609b811 100644
--- a/arch/sparc/include/asm/irq_32.h
+++ b/arch/sparc/include/asm/irq_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* irq.h: IRQ registers on the Sparc.
  *
  * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/irq_64.h b/arch/sparc/include/asm/irq_64.h
index 1d51a11fb261..4d748e93b974 100644
--- a/arch/sparc/include/asm/irq_64.h
+++ b/arch/sparc/include/asm/irq_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* irq.h: IRQ registers on the 64-bit Sparc.
  *
  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/irqflags.h b/arch/sparc/include/asm/irqflags.h
index 1e138632bd3f..d1bdf6c398d1 100644
--- a/arch/sparc/include/asm/irqflags.h
+++ b/arch/sparc/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_IRQFLAGS_H
 #define ___ASM_SPARC_IRQFLAGS_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/irqflags_32.h b/arch/sparc/include/asm/irqflags_32.h
index 71cc284f55c5..7ca3eaf3dace 100644
--- a/arch/sparc/include/asm/irqflags_32.h
+++ b/arch/sparc/include/asm/irqflags_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm/irqflags.h
  *
diff --git a/arch/sparc/include/asm/irqflags_64.h b/arch/sparc/include/asm/irqflags_64.h
index 23cd27f6beb4..c29ed571ae49 100644
--- a/arch/sparc/include/asm/irqflags_64.h
+++ b/arch/sparc/include/asm/irqflags_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm/irqflags.h
  *
diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h
index 62d0354d1727..94eb529dcb77 100644
--- a/arch/sparc/include/asm/jump_label.h
+++ b/arch/sparc/include/asm/jump_label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_JUMP_LABEL_H
 #define _ASM_SPARC_JUMP_LABEL_H
 
diff --git a/arch/sparc/include/asm/kdebug.h b/arch/sparc/include/asm/kdebug.h
index 8d12581ca386..830053f91da1 100644
--- a/arch/sparc/include/asm/kdebug.h
+++ b/arch/sparc/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_KDEBUG_H
 #define ___ASM_SPARC_KDEBUG_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/kdebug_32.h b/arch/sparc/include/asm/kdebug_32.h
index 1d0b240222ef..763d423823bd 100644
--- a/arch/sparc/include/asm/kdebug_32.h
+++ b/arch/sparc/include/asm/kdebug_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * kdebug.h:  Defines and definitions for debugging the Linux kernel
  *            under various kernel debuggers.
diff --git a/arch/sparc/include/asm/kdebug_64.h b/arch/sparc/include/asm/kdebug_64.h
index 867286bf7b1a..89428bd4f94b 100644
--- a/arch/sparc/include/asm/kdebug_64.h
+++ b/arch/sparc/include/asm/kdebug_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_KDEBUG_H
 #define _SPARC64_KDEBUG_H
 
diff --git a/arch/sparc/include/asm/kgdb.h b/arch/sparc/include/asm/kgdb.h
index a6ad7bf84bac..deabe0279cd9 100644
--- a/arch/sparc/include/asm/kgdb.h
+++ b/arch/sparc/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_KGDB_H
 #define _SPARC_KGDB_H
 
diff --git a/arch/sparc/include/asm/kmap_types.h b/arch/sparc/include/asm/kmap_types.h
index aad21745fbb9..55a99b6bd91e 100644
--- a/arch/sparc/include/asm/kmap_types.h
+++ b/arch/sparc/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KMAP_TYPES_H
 #define _ASM_KMAP_TYPES_H
 
diff --git a/arch/sparc/include/asm/kprobes.h b/arch/sparc/include/asm/kprobes.h
index 49f8402035d7..3704490b4488 100644
--- a/arch/sparc/include/asm/kprobes.h
+++ b/arch/sparc/include/asm/kprobes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_KPROBES_H
 #define _SPARC64_KPROBES_H
 
diff --git a/arch/sparc/include/asm/ldc.h b/arch/sparc/include/asm/ldc.h
index 698738a10414..ca973955ca86 100644
--- a/arch/sparc/include/asm/ldc.h
+++ b/arch/sparc/include/asm/ldc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_LDC_H
 #define _SPARC64_LDC_H
 
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 204771cd74a5..c68bb5b76e3d 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com) Gaisler Research
  * Copyright (C) 2004 Stefan Holst (mail@s-holst.de) Uni-Stuttgart
diff --git a/arch/sparc/include/asm/leon_amba.h b/arch/sparc/include/asm/leon_amba.h
index 24ec48c3ff90..6433a93f5126 100644
--- a/arch/sparc/include/asm/leon_amba.h
+++ b/arch/sparc/include/asm/leon_amba.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 *Copyright (C) 2004 Konrad Eisele (eiselekd@web.de,konrad@gaisler.com), Gaisler Research
 *Copyright (C) 2004 Stefan Holst (mail@s-holst.de), Uni-Stuttgart
diff --git a/arch/sparc/include/asm/leon_pci.h b/arch/sparc/include/asm/leon_pci.h
index 049d067ed8be..484a56e81dcc 100644
--- a/arch/sparc/include/asm/leon_pci.h
+++ b/arch/sparc/include/asm/leon_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * asm/leon_pci.h
  *
diff --git a/arch/sparc/include/asm/lsu.h b/arch/sparc/include/asm/lsu.h
index 7190f8de90a0..154ae76c0244 100644
--- a/arch/sparc/include/asm/lsu.h
+++ b/arch/sparc/include/asm/lsu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_LSU_H
 #define _SPARC64_LSU_H
 
diff --git a/arch/sparc/include/asm/machines.h b/arch/sparc/include/asm/machines.h
index fd6ddb05d1b7..9f78f70c6f11 100644
--- a/arch/sparc/include/asm/machines.h
+++ b/arch/sparc/include/asm/machines.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * machines.h:  Defines for taking apart the machine type value in the
  *              idprom and determining the kind of machine we are on.
diff --git a/arch/sparc/include/asm/mbus.h b/arch/sparc/include/asm/mbus.h
index 14128bcc5821..8b6dbe701b9b 100644
--- a/arch/sparc/include/asm/mbus.h
+++ b/arch/sparc/include/asm/mbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mbus.h:  Various defines for MBUS modules.
  *
diff --git a/arch/sparc/include/asm/mc146818rtc.h b/arch/sparc/include/asm/mc146818rtc.h
index d8e72f37dc4b..07faf754eb71 100644
--- a/arch/sparc/include/asm/mc146818rtc.h
+++ b/arch/sparc/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_MC146818RTC_H
 #define ___ASM_SPARC_MC146818RTC_H
 
diff --git a/arch/sparc/include/asm/mc146818rtc_32.h b/arch/sparc/include/asm/mc146818rtc_32.h
index fa7eac926582..d8fd75da8d49 100644
--- a/arch/sparc/include/asm/mc146818rtc_32.h
+++ b/arch/sparc/include/asm/mc146818rtc_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/sparc/include/asm/mc146818rtc_64.h b/arch/sparc/include/asm/mc146818rtc_64.h
index 7238d174e0e3..b1708a7e5735 100644
--- a/arch/sparc/include/asm/mc146818rtc_64.h
+++ b/arch/sparc/include/asm/mc146818rtc_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/sparc/include/asm/mdesc.h b/arch/sparc/include/asm/mdesc.h
index e8a4c413a1c7..ec31a06d04cc 100644
--- a/arch/sparc/include/asm/mdesc.h
+++ b/arch/sparc/include/asm/mdesc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_MDESC_H
 #define _SPARC64_MDESC_H
 
diff --git a/arch/sparc/include/asm/memctrl.h b/arch/sparc/include/asm/memctrl.h
index 4065c56af7b6..6790ed608cbc 100644
--- a/arch/sparc/include/asm/memctrl.h
+++ b/arch/sparc/include/asm/memctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_MEMCTRL_H
 #define _SPARC_MEMCTRL_H
 
diff --git a/arch/sparc/include/asm/mman.h b/arch/sparc/include/asm/mman.h
index 59bb5938d852..7e9472143f9b 100644
--- a/arch/sparc/include/asm/mman.h
+++ b/arch/sparc/include/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_MMAN_H__
 #define __SPARC_MMAN_H__
 
diff --git a/arch/sparc/include/asm/mmu.h b/arch/sparc/include/asm/mmu.h
index 88fa313887db..286457e589a6 100644
--- a/arch/sparc/include/asm/mmu.h
+++ b/arch/sparc/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_MMU_H
 #define ___ASM_SPARC_MMU_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/mmu_32.h b/arch/sparc/include/asm/mmu_32.h
index 6f056e535cf8..d5b220ca7f40 100644
--- a/arch/sparc/include/asm/mmu_32.h
+++ b/arch/sparc/include/asm/mmu_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/sparc/include/asm/mmu_64.h b/arch/sparc/include/asm/mmu_64.h
index 83b36a5371ff..5fe64a57b4ba 100644
--- a/arch/sparc/include/asm/mmu_64.h
+++ b/arch/sparc/include/asm/mmu_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MMU_H
 #define __MMU_H
 
diff --git a/arch/sparc/include/asm/mmu_context.h b/arch/sparc/include/asm/mmu_context.h
index 5531346c64f9..5e1ea38511f4 100644
--- a/arch/sparc/include/asm/mmu_context.h
+++ b/arch/sparc/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_MMU_CONTEXT_H
 #define ___ASM_SPARC_MMU_CONTEXT_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/mmu_context_32.h b/arch/sparc/include/asm/mmu_context_32.h
index 2df2a9be8f6d..7ddcb8badf70 100644
--- a/arch/sparc/include/asm/mmu_context_32.h
+++ b/arch/sparc/include/asm/mmu_context_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_MMU_CONTEXT_H
 #define __SPARC_MMU_CONTEXT_H
 
diff --git a/arch/sparc/include/asm/mmu_context_64.h b/arch/sparc/include/asm/mmu_context_64.h
index 87841d687f8d..e25d25b0a34b 100644
--- a/arch/sparc/include/asm/mmu_context_64.h
+++ b/arch/sparc/include/asm/mmu_context_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC64_MMU_CONTEXT_H
 #define __SPARC64_MMU_CONTEXT_H
 
diff --git a/arch/sparc/include/asm/mmzone.h b/arch/sparc/include/asm/mmzone.h
index 99d9b9f577bf..6543fb97a849 100644
--- a/arch/sparc/include/asm/mmzone.h
+++ b/arch/sparc/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_MMZONE_H
 #define _SPARC64_MMZONE_H
 
diff --git a/arch/sparc/include/asm/msi.h b/arch/sparc/include/asm/msi.h
index 724ca5667052..3c17c1074431 100644
--- a/arch/sparc/include/asm/msi.h
+++ b/arch/sparc/include/asm/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * msi.h:  Defines specific to the MBus - Sbus - Interface.
  *
diff --git a/arch/sparc/include/asm/mxcc.h b/arch/sparc/include/asm/mxcc.h
index c0517bd05bde..3a2561bea4dd 100644
--- a/arch/sparc/include/asm/mxcc.h
+++ b/arch/sparc/include/asm/mxcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mxcc.h:  Definitions of the Viking MXCC registers
  *
diff --git a/arch/sparc/include/asm/nmi.h b/arch/sparc/include/asm/nmi.h
index 284eac3ffaf2..90ee7863d9fe 100644
--- a/arch/sparc/include/asm/nmi.h
+++ b/arch/sparc/include/asm/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NMI_H
 #define __NMI_H
 
diff --git a/arch/sparc/include/asm/ns87303.h b/arch/sparc/include/asm/ns87303.h
index 6b947ee0f6aa..5401894a6065 100644
--- a/arch/sparc/include/asm/ns87303.h
+++ b/arch/sparc/include/asm/ns87303.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ns87303.h: Configuration Register Description for the
  *            National Semiconductor PC87303 (SuperIO).
  *
diff --git a/arch/sparc/include/asm/obio.h b/arch/sparc/include/asm/obio.h
index 426ad75103fb..1b151f738b00 100644
--- a/arch/sparc/include/asm/obio.h
+++ b/arch/sparc/include/asm/obio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * obio.h:  Some useful locations in 0xFXXXXXXXX PA obio space on sun4d.
  *
diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h
index 63374c4413a8..69545b3e5454 100644
--- a/arch/sparc/include/asm/openprom.h
+++ b/arch/sparc/include/asm/openprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_OPENPROM_H
 #define __SPARC_OPENPROM_H
 
diff --git a/arch/sparc/include/asm/oplib.h b/arch/sparc/include/asm/oplib.h
index 72e04e13a6b4..df49a7700d73 100644
--- a/arch/sparc/include/asm/oplib.h
+++ b/arch/sparc/include/asm/oplib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_OPLIB_H
 #define ___ASM_SPARC_OPLIB_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h
index 56a09b9d7b1b..d1cf3a27a40d 100644
--- a/arch/sparc/include/asm/oplib_32.h
+++ b/arch/sparc/include/asm/oplib_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * oplib.h:  Describes the interface and available routines in the
  *           Linux Prom library.
diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index 2e3a4add8591..a67abebd4359 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* oplib.h:  Describes the interface and available routines in the
  *           Linux Prom library.
  *
diff --git a/arch/sparc/include/asm/page.h b/arch/sparc/include/asm/page.h
index 1be2fdec6268..5e44cdf2a8f2 100644
--- a/arch/sparc/include/asm/page.h
+++ b/arch/sparc/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_PAGE_H
 #define ___ASM_SPARC_PAGE_H
 
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index 6249214148c2..b76d59edec8c 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * page.h:  Various defines and such for MMU operations on the Sparc for
  *          the Linux kernel.
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 8ee1f97589a1..c28379b1b0fc 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_PAGE_H
 #define _SPARC64_PAGE_H
 
diff --git a/arch/sparc/include/asm/parport.h b/arch/sparc/include/asm/parport.h
index f005ccac91cc..05df5f043053 100644
--- a/arch/sparc/include/asm/parport.h
+++ b/arch/sparc/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* parport.h: sparc64 specific parport initialization and dma.
  *
  * Copyright (C) 1999  Eddie C. Dost  (ecd@skynet.be)
diff --git a/arch/sparc/include/asm/pbm.h b/arch/sparc/include/asm/pbm.h
index 458a4916d14d..0c86261721e7 100644
--- a/arch/sparc/include/asm/pbm.h
+++ b/arch/sparc/include/asm/pbm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * pbm.h: PCI bus module pseudo driver software state
diff --git a/arch/sparc/include/asm/pci.h b/arch/sparc/include/asm/pci.h
index 6e14fd179335..cad79a6ce0e4 100644
--- a/arch/sparc/include/asm/pci.h
+++ b/arch/sparc/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_PCI_H
 #define ___ASM_SPARC_PCI_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/pci_32.h b/arch/sparc/include/asm/pci_32.h
index b7c092df3134..fe361d3d180d 100644
--- a/arch/sparc/include/asm/pci_32.h
+++ b/arch/sparc/include/asm/pci_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_PCI_H
 #define __SPARC_PCI_H
 
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index b957ca5527a3..671274e36cfa 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC64_PCI_H
 #define __SPARC64_PCI_H
 
diff --git a/arch/sparc/include/asm/pcic.h b/arch/sparc/include/asm/pcic.h
index f41706792592..238376b1ffcc 100644
--- a/arch/sparc/include/asm/pcic.h
+++ b/arch/sparc/include/asm/pcic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * pcic.h: JavaEngine 1 specific PCI definitions.
  *
diff --git a/arch/sparc/include/asm/pcr.h b/arch/sparc/include/asm/pcr.h
index cdf800c3326c..da834ffbe75d 100644
--- a/arch/sparc/include/asm/pcr.h
+++ b/arch/sparc/include/asm/pcr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PCR_H
 #define __PCR_H
 
diff --git a/arch/sparc/include/asm/percpu.h b/arch/sparc/include/asm/percpu.h
index bfb1d19ff1bf..0cd704ef5ff9 100644
--- a/arch/sparc/include/asm/percpu.h
+++ b/arch/sparc/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_PERCPU_H
 #define ___ASM_SPARC_PERCPU_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/percpu_32.h b/arch/sparc/include/asm/percpu_32.h
index 06066a7aaec3..ee6c7c1934f6 100644
--- a/arch/sparc/include/asm/percpu_32.h
+++ b/arch/sparc/include/asm/percpu_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_SPARC_PERCPU__
 #define __ARCH_SPARC_PERCPU__
 
diff --git a/arch/sparc/include/asm/percpu_64.h b/arch/sparc/include/asm/percpu_64.h
index 007aafb4ae97..32ef6f05cc56 100644
--- a/arch/sparc/include/asm/percpu_64.h
+++ b/arch/sparc/include/asm/percpu_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCH_SPARC64_PERCPU__
 #define __ARCH_SPARC64_PERCPU__
 
diff --git a/arch/sparc/include/asm/perf_event.h b/arch/sparc/include/asm/perf_event.h
index 4d3dbe3703e9..c2aec0c7f4f5 100644
--- a/arch/sparc/include/asm/perf_event.h
+++ b/arch/sparc/include/asm/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPARC_PERF_EVENT_H
 #define __ASM_SPARC_PERF_EVENT_H
 
diff --git a/arch/sparc/include/asm/pgalloc.h b/arch/sparc/include/asm/pgalloc.h
index b6db1f7cdcab..9ea0b37586c9 100644
--- a/arch/sparc/include/asm/pgalloc.h
+++ b/arch/sparc/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_PGALLOC_H
 #define ___ASM_SPARC_PGALLOC_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 0346c7e62452..90459481c6c7 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_PGALLOC_H
 #define _SPARC_PGALLOC_H
 
diff --git a/arch/sparc/include/asm/pgalloc_64.h b/arch/sparc/include/asm/pgalloc_64.h
index 3529f1378cd8..874632f34f62 100644
--- a/arch/sparc/include/asm/pgalloc_64.h
+++ b/arch/sparc/include/asm/pgalloc_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_PGALLOC_H
 #define _SPARC64_PGALLOC_H
 
diff --git a/arch/sparc/include/asm/pgtable.h b/arch/sparc/include/asm/pgtable.h
index 59ba6f620732..e48891170f84 100644
--- a/arch/sparc/include/asm/pgtable.h
+++ b/arch/sparc/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_PGTABLE_H
 #define ___ASM_SPARC_PGTABLE_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index cf190728360b..4eebed6c6781 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_PGTABLE_H
 #define _SPARC_PGTABLE_H
 
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 4fefe3762083..fd9d9bac7cfa 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * pgtable.h: SpitFire page table operations.
  *
diff --git a/arch/sparc/include/asm/pgtsrmmu.h b/arch/sparc/include/asm/pgtsrmmu.h
index ae51a111a8c7..32a508897501 100644
--- a/arch/sparc/include/asm/pgtsrmmu.h
+++ b/arch/sparc/include/asm/pgtsrmmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * pgtsrmmu.h:  SRMMU page table defines and code.
  *
diff --git a/arch/sparc/include/asm/pil.h b/arch/sparc/include/asm/pil.h
index 522b43db2ed3..4003c35304bd 100644
--- a/arch/sparc/include/asm/pil.h
+++ b/arch/sparc/include/asm/pil.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_PIL_H
 #define _SPARC64_PIL_H
 
diff --git a/arch/sparc/include/asm/processor.h b/arch/sparc/include/asm/processor.h
index 9da9646bf6c6..18295ea625dd 100644
--- a/arch/sparc/include/asm/processor.h
+++ b/arch/sparc/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_PROCESSOR_H
 #define ___ASM_SPARC_PROCESSOR_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/processor_32.h b/arch/sparc/include/asm/processor_32.h
index b395e5620c0b..192493c257fa 100644
--- a/arch/sparc/include/asm/processor_32.h
+++ b/arch/sparc/include/asm/processor_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include/asm/processor.h
  *
  * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/include/asm/processor_64.h b/arch/sparc/include/asm/processor_64.h
index f04dc5a43062..c7c79fe8d265 100644
--- a/arch/sparc/include/asm/processor_64.h
+++ b/arch/sparc/include/asm/processor_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm/processor.h
  *
diff --git a/arch/sparc/include/asm/psr.h b/arch/sparc/include/asm/psr.h
index e71eb57945e0..65127ce565ab 100644
--- a/arch/sparc/include/asm/psr.h
+++ b/arch/sparc/include/asm/psr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * psr.h: This file holds the macros for masking off various parts of
  *        the processor status register on the Sparc. This is valid
diff --git a/arch/sparc/include/asm/ptrace.h b/arch/sparc/include/asm/ptrace.h
index d73428e4333c..71dd82b43cc5 100644
--- a/arch/sparc/include/asm/ptrace.h
+++ b/arch/sparc/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_PTRACE_H
 #define __SPARC_PTRACE_H
 
@@ -6,6 +7,7 @@
 #if defined(__sparc__) && defined(__arch64__)
 #ifndef __ASSEMBLY__
 
+#include <linux/compiler.h>
 #include <linux/threads.h>
 #include <asm/switch_to.h>
 
diff --git a/arch/sparc/include/asm/qrwlock.h b/arch/sparc/include/asm/qrwlock.h
index d68a4b102100..c277729152c6 100644
--- a/arch/sparc/include/asm/qrwlock.h
+++ b/arch/sparc/include/asm/qrwlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_QRWLOCK_H
 #define _ASM_SPARC_QRWLOCK_H
 
diff --git a/arch/sparc/include/asm/qspinlock.h b/arch/sparc/include/asm/qspinlock.h
index 5ae9a2802846..48808f3d9dd7 100644
--- a/arch/sparc/include/asm/qspinlock.h
+++ b/arch/sparc/include/asm/qspinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_QSPINLOCK_H
 #define _ASM_SPARC_QSPINLOCK_H
 
diff --git a/arch/sparc/include/asm/ross.h b/arch/sparc/include/asm/ross.h
index ecb6e81786a6..79a54d66a2c0 100644
--- a/arch/sparc/include/asm/ross.h
+++ b/arch/sparc/include/asm/ross.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ross.h: Ross module specific definitions and defines.
  *
diff --git a/arch/sparc/include/asm/sbi.h b/arch/sparc/include/asm/sbi.h
index 5eb7f1965d33..4d6026c1e446 100644
--- a/arch/sparc/include/asm/sbi.h
+++ b/arch/sparc/include/asm/sbi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sbi.h:  SBI (Sbus Interface on sun4d) definitions
  *
diff --git a/arch/sparc/include/asm/scratchpad.h b/arch/sparc/include/asm/scratchpad.h
index 5e8b01fb3343..958351190788 100644
--- a/arch/sparc/include/asm/scratchpad.h
+++ b/arch/sparc/include/asm/scratchpad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_SCRATCHPAD_H
 #define _SPARC64_SCRATCHPAD_H
 
diff --git a/arch/sparc/include/asm/seccomp.h b/arch/sparc/include/asm/seccomp.h
index 5ef8826d44f8..62d4579efb1a 100644
--- a/arch/sparc/include/asm/seccomp.h
+++ b/arch/sparc/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SECCOMP_H
 #define _ASM_SECCOMP_H
 
diff --git a/arch/sparc/include/asm/sections.h b/arch/sparc/include/asm/sections.h
index f300d1a9b2b6..08f833453ab3 100644
--- a/arch/sparc/include/asm/sections.h
+++ b/arch/sparc/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_SECTIONS_H
 #define __SPARC_SECTIONS_H
 
diff --git a/arch/sparc/include/asm/setup.h b/arch/sparc/include/asm/setup.h
index 8b32538084f7..72205684e51e 100644
--- a/arch/sparc/include/asm/setup.h
+++ b/arch/sparc/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Just a place holder.
  */
diff --git a/arch/sparc/include/asm/sfafsr.h b/arch/sparc/include/asm/sfafsr.h
index e96137b04a4f..9c98f4fc8839 100644
--- a/arch/sparc/include/asm/sfafsr.h
+++ b/arch/sparc/include/asm/sfafsr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_SFAFSR_H
 #define _SPARC64_SFAFSR_H
 
diff --git a/arch/sparc/include/asm/sfp-machine.h b/arch/sparc/include/asm/sfp-machine.h
index 4ebc3823ed4f..4a247b40573c 100644
--- a/arch/sparc/include/asm/sfp-machine.h
+++ b/arch/sparc/include/asm/sfp-machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_SFP_MACHINE_H
 #define ___ASM_SPARC_SFP_MACHINE_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/shmparam.h b/arch/sparc/include/asm/shmparam.h
index 8bf0cfe0694f..951a4525fa4b 100644
--- a/arch/sparc/include/asm/shmparam.h
+++ b/arch/sparc/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_SHMPARAM_H
 #define ___ASM_SPARC_SHMPARAM_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/shmparam_32.h b/arch/sparc/include/asm/shmparam_32.h
index 142825c8d3ac..9767a8b30242 100644
--- a/arch/sparc/include/asm/shmparam_32.h
+++ b/arch/sparc/include/asm/shmparam_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMSPARC_SHMPARAM_H
 #define _ASMSPARC_SHMPARAM_H
 
diff --git a/arch/sparc/include/asm/shmparam_64.h b/arch/sparc/include/asm/shmparam_64.h
index 1ed0d6701a9b..c0731b57124c 100644
--- a/arch/sparc/include/asm/shmparam_64.h
+++ b/arch/sparc/include/asm/shmparam_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASMSPARC64_SHMPARAM_H
 #define _ASMSPARC64_SHMPARAM_H
 
diff --git a/arch/sparc/include/asm/sigcontext.h b/arch/sparc/include/asm/sigcontext.h
index f4eb630a58ed..ee05f9d2bcf2 100644
--- a/arch/sparc/include/asm/sigcontext.h
+++ b/arch/sparc/include/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_SIGCONTEXT_H
 #define __SPARC_SIGCONTEXT_H
 
diff --git a/arch/sparc/include/asm/signal.h b/arch/sparc/include/asm/signal.h
index c33ce3f2ba84..827b73a97f8a 100644
--- a/arch/sparc/include/asm/signal.h
+++ b/arch/sparc/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_SIGNAL_H
 #define __SPARC_SIGNAL_H
 
diff --git a/arch/sparc/include/asm/smp.h b/arch/sparc/include/asm/smp.h
index b59672d0e19b..dea59f6ce79f 100644
--- a/arch/sparc/include/asm/smp.h
+++ b/arch/sparc/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_SMP_H
 #define ___ASM_SPARC_SMP_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/smp_32.h b/arch/sparc/include/asm/smp_32.h
index 7c24e08a88d2..856081761b0f 100644
--- a/arch/sparc/include/asm/smp_32.h
+++ b/arch/sparc/include/asm/smp_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* smp.h: Sparc specific SMP stuff.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/include/asm/smp_64.h b/arch/sparc/include/asm/smp_64.h
index a75089285db8..e75783b6abc4 100644
--- a/arch/sparc/include/asm/smp_64.h
+++ b/arch/sparc/include/asm/smp_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* smp.h: Sparc64 specific SMP stuff.
  *
  * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/sparsemem.h b/arch/sparc/include/asm/sparsemem.h
index e5e1752d5d78..1dd1b61432db 100644
--- a/arch/sparc/include/asm/sparsemem.h
+++ b/arch/sparc/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_SPARSEMEM_H
 #define _SPARC64_SPARSEMEM_H
 
diff --git a/arch/sparc/include/asm/spinlock.h b/arch/sparc/include/asm/spinlock.h
index f276b0036b2c..3f4ce55bc4d6 100644
--- a/arch/sparc/include/asm/spinlock.h
+++ b/arch/sparc/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_SPINLOCK_H
 #define ___ASM_SPARC_SPINLOCK_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h
index 67345b2dc408..bc5aa6f61676 100644
--- a/arch/sparc/include/asm/spinlock_32.h
+++ b/arch/sparc/include/asm/spinlock_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* spinlock.h: 32-bit Sparc spinlock support.
  *
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
@@ -182,17 +183,6 @@ static inline int __arch_read_trylock(arch_rwlock_t *rw)
 	res; \
 })
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-#define arch_read_lock_flags(rw, flags)   arch_read_lock(rw)
-#define arch_write_lock_flags(rw, flags)  arch_write_lock(rw)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
-#define arch_read_can_lock(rw) (!((rw)->lock & 0xff))
-#define arch_write_can_lock(rw) (!(rw)->lock)
-
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* __SPARC_SPINLOCK_H */
diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h
index f7028f5e1a5a..7fc82a233f49 100644
--- a/arch/sparc/include/asm/spinlock_64.h
+++ b/arch/sparc/include/asm/spinlock_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* spinlock.h: 64-bit Sparc spinlock support.
  *
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
@@ -13,13 +14,6 @@
 #include <asm/qrwlock.h>
 #include <asm/qspinlock.h>
 
-#define arch_read_lock_flags(p, f) arch_read_lock(p)
-#define arch_write_lock_flags(p, f) arch_write_lock(p)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* !(__ASSEMBLY__) */
 
 #endif /* !(__SPARC64_SPINLOCK_H) */
diff --git a/arch/sparc/include/asm/spinlock_types.h b/arch/sparc/include/asm/spinlock_types.h
index bce8ef44dfa9..ed1d569b638e 100644
--- a/arch/sparc/include/asm/spinlock_types.h
+++ b/arch/sparc/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_SPINLOCK_TYPES_H
 #define __SPARC_SPINLOCK_TYPES_H
 
diff --git a/arch/sparc/include/asm/spitfire.h b/arch/sparc/include/asm/spitfire.h
index 1b1286d05069..e9b7d25b29fa 100644
--- a/arch/sparc/include/asm/spitfire.h
+++ b/arch/sparc/include/asm/spitfire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* spitfire.h: SpitFire/BlackBird/Cheetah inline MMU operations.
  *
  * Copyright (C) 1996 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/stacktrace.h b/arch/sparc/include/asm/stacktrace.h
index c30d066f3048..556ec5d59c88 100644
--- a/arch/sparc/include/asm/stacktrace.h
+++ b/arch/sparc/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_STACKTRACE_H
 #define _SPARC64_STACKTRACE_H
 
diff --git a/arch/sparc/include/asm/starfire.h b/arch/sparc/include/asm/starfire.h
index 176fa0ad19f1..fb1a8c499cb0 100644
--- a/arch/sparc/include/asm/starfire.h
+++ b/arch/sparc/include/asm/starfire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * starfire.h: Group all starfire specific code together.
  *
diff --git a/arch/sparc/include/asm/string.h b/arch/sparc/include/asm/string.h
index 86f34be14ce0..3d9cd082716b 100644
--- a/arch/sparc/include/asm/string.h
+++ b/arch/sparc/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_STRING_H
 #define ___ASM_SPARC_STRING_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/string_32.h b/arch/sparc/include/asm/string_32.h
index 649412476a69..f488946bd7d6 100644
--- a/arch/sparc/include/asm/string_32.h
+++ b/arch/sparc/include/asm/string_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * string.h: External definitions for optimized assembly string
  *           routines for the Linux Kernel.
diff --git a/arch/sparc/include/asm/string_64.h b/arch/sparc/include/asm/string_64.h
index 6b9ccb308605..ee9ba67321bd 100644
--- a/arch/sparc/include/asm/string_64.h
+++ b/arch/sparc/include/asm/string_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * string.h: External definitions for optimized assembly string
  *           routines for the Linux Kernel.
diff --git a/arch/sparc/include/asm/sunbpp.h b/arch/sparc/include/asm/sunbpp.h
index d81a02eaf78b..55de4da70dff 100644
--- a/arch/sparc/include/asm/sunbpp.h
+++ b/arch/sparc/include/asm/sunbpp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/asm/sunbpp.h
  */
diff --git a/arch/sparc/include/asm/swift.h b/arch/sparc/include/asm/swift.h
index e535061bf755..96f6526b964e 100644
--- a/arch/sparc/include/asm/swift.h
+++ b/arch/sparc/include/asm/swift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* swift.h: Specific definitions for the _broken_ Swift SRMMU
  *          MMU module.
  *
diff --git a/arch/sparc/include/asm/switch_to.h b/arch/sparc/include/asm/switch_to.h
index 2dc4fa5c6f8c..7cf1c5dc734c 100644
--- a/arch/sparc/include/asm/switch_to.h
+++ b/arch/sparc/include/asm/switch_to.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_SWITCH_TO_H
 #define ___ASM_SPARC_SWITCH_TO_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/switch_to_32.h b/arch/sparc/include/asm/switch_to_32.h
index 475dd4158ae4..42eeafcb8a41 100644
--- a/arch/sparc/include/asm/switch_to_32.h
+++ b/arch/sparc/include/asm/switch_to_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_SWITCH_TO_H
 #define __SPARC_SWITCH_TO_H
 
diff --git a/arch/sparc/include/asm/switch_to_64.h b/arch/sparc/include/asm/switch_to_64.h
index 10e76332dc99..4ff29b1406a9 100644
--- a/arch/sparc/include/asm/switch_to_64.h
+++ b/arch/sparc/include/asm/switch_to_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC64_SWITCH_TO_64_H
 #define __SPARC64_SWITCH_TO_64_H
 
diff --git a/arch/sparc/include/asm/syscall.h b/arch/sparc/include/asm/syscall.h
index 1757cd6c521b..053989e3f6a6 100644
--- a/arch/sparc/include/asm/syscall.h
+++ b/arch/sparc/include/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPARC_SYSCALL_H
 #define __ASM_SPARC_SYSCALL_H
 
diff --git a/arch/sparc/include/asm/syscalls.h b/arch/sparc/include/asm/syscalls.h
index b0a0db8ea61a..1d819f5e21da 100644
--- a/arch/sparc/include/asm/syscalls.h
+++ b/arch/sparc/include/asm/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_SYSCALLS_H
 #define _SPARC64_SYSCALLS_H
 
diff --git a/arch/sparc/include/asm/termbits.h b/arch/sparc/include/asm/termbits.h
index 948067065ac5..fa9de4a46d36 100644
--- a/arch/sparc/include/asm/termbits.h
+++ b/arch/sparc/include/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_TERMBITS_H
 #define _SPARC_TERMBITS_H
 
diff --git a/arch/sparc/include/asm/termios.h b/arch/sparc/include/asm/termios.h
index 0c2414ddd52c..4a558efdfa93 100644
--- a/arch/sparc/include/asm/termios.h
+++ b/arch/sparc/include/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_TERMIOS_H
 #define _SPARC_TERMIOS_H
 
diff --git a/arch/sparc/include/asm/thread_info.h b/arch/sparc/include/asm/thread_info.h
index 122d7acc07e6..740b1743ed8c 100644
--- a/arch/sparc/include/asm/thread_info.h
+++ b/arch/sparc/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_THREAD_INFO_H
 #define ___ASM_SPARC_THREAD_INFO_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index 229475f0d7ce..febaaeb1a0fe 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * thread_info.h: sparc low-level thread information
  * adapted from the ppc version by Pete Zaitcev, which was
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index 38a24f257b85..caf915321ba9 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: sparc64 low-level thread information
  *
  * Copyright (C) 2002  David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/include/asm/timer.h b/arch/sparc/include/asm/timer.h
index 612fd2779d9e..eaf6195d17e2 100644
--- a/arch/sparc/include/asm/timer.h
+++ b/arch/sparc/include/asm/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_TIMER_H
 #define ___ASM_SPARC_TIMER_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/timer_32.h b/arch/sparc/include/asm/timer_32.h
index f8e708a0aa58..eecd2696922d 100644
--- a/arch/sparc/include/asm/timer_32.h
+++ b/arch/sparc/include/asm/timer_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * timer.h:  Definitions for the timer chips on the Sparc.
  *
diff --git a/arch/sparc/include/asm/timer_64.h b/arch/sparc/include/asm/timer_64.h
index 51bc3bc54bfe..c7e4fb601a57 100644
--- a/arch/sparc/include/asm/timer_64.h
+++ b/arch/sparc/include/asm/timer_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* timer.h: System timer definitions for sun5.
  *
  * Copyright (C) 1997, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/include/asm/timex.h b/arch/sparc/include/asm/timex.h
index 70cc37b73827..9aac26b1f45f 100644
--- a/arch/sparc/include/asm/timex.h
+++ b/arch/sparc/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_TIMEX_H
 #define ___ASM_SPARC_TIMEX_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/timex_32.h b/arch/sparc/include/asm/timex_32.h
index b6ccdb0d6f7d..542915b46209 100644
--- a/arch/sparc/include/asm/timex_32.h
+++ b/arch/sparc/include/asm/timex_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm/timex.h
  *
diff --git a/arch/sparc/include/asm/timex_64.h b/arch/sparc/include/asm/timex_64.h
index 18b30bc9823b..076c44f6845d 100644
--- a/arch/sparc/include/asm/timex_64.h
+++ b/arch/sparc/include/asm/timex_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm/timex.h
  *
diff --git a/arch/sparc/include/asm/tlb.h b/arch/sparc/include/asm/tlb.h
index 92d0393bbcdc..7146a577257f 100644
--- a/arch/sparc/include/asm/tlb.h
+++ b/arch/sparc/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_TLB_H
 #define ___ASM_SPARC_TLB_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/tlb_32.h b/arch/sparc/include/asm/tlb_32.h
index 6d02d1ce53f3..343cea19e573 100644
--- a/arch/sparc/include/asm/tlb_32.h
+++ b/arch/sparc/include/asm/tlb_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_TLB_H
 #define _SPARC_TLB_H
 
diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index 4cb392f75d2b..a2f3fa61ee36 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_TLB_H
 #define _SPARC64_TLB_H
 
diff --git a/arch/sparc/include/asm/tlbflush.h b/arch/sparc/include/asm/tlbflush.h
index 2c9629fad1e2..30ae3ea21054 100644
--- a/arch/sparc/include/asm/tlbflush.h
+++ b/arch/sparc/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_TLBFLUSH_H
 #define ___ASM_SPARC_TLBFLUSH_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/tlbflush_32.h b/arch/sparc/include/asm/tlbflush_32.h
index a5c4142130f5..470531991a08 100644
--- a/arch/sparc/include/asm/tlbflush_32.h
+++ b/arch/sparc/include/asm/tlbflush_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_TLBFLUSH_H
 #define _SPARC_TLBFLUSH_H
 
diff --git a/arch/sparc/include/asm/tlbflush_64.h b/arch/sparc/include/asm/tlbflush_64.h
index 54be88a6774c..8b8cdaa69272 100644
--- a/arch/sparc/include/asm/tlbflush_64.h
+++ b/arch/sparc/include/asm/tlbflush_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_TLBFLUSH_H
 #define _SPARC64_TLBFLUSH_H
 
diff --git a/arch/sparc/include/asm/topology.h b/arch/sparc/include/asm/topology.h
index ee4f191d394a..ba7b9d9d91cf 100644
--- a/arch/sparc/include/asm/topology.h
+++ b/arch/sparc/include/asm/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_TOPOLOGY_H
 #define ___ASM_SPARC_TOPOLOGY_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/topology_32.h b/arch/sparc/include/asm/topology_32.h
index ee5ac9c9da28..66c4f9ff700d 100644
--- a/arch/sparc/include/asm/topology_32.h
+++ b/arch/sparc/include/asm/topology_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_TOPOLOGY_H
 #define _ASM_SPARC_TOPOLOGY_H
 
diff --git a/arch/sparc/include/asm/topology_64.h b/arch/sparc/include/asm/topology_64.h
index ad5293f89680..3831b1911a19 100644
--- a/arch/sparc/include/asm/topology_64.h
+++ b/arch/sparc/include/asm/topology_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC64_TOPOLOGY_H
 #define _ASM_SPARC64_TOPOLOGY_H
 
diff --git a/arch/sparc/include/asm/trap_block.h b/arch/sparc/include/asm/trap_block.h
index dfc538609eb2..6a4c8652ad67 100644
--- a/arch/sparc/include/asm/trap_block.h
+++ b/arch/sparc/include/asm/trap_block.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_TRAP_BLOCK_H
 #define _SPARC_TRAP_BLOCK_H
 
diff --git a/arch/sparc/include/asm/traps.h b/arch/sparc/include/asm/traps.h
index 51abcb1f9b3b..2fba2602ba69 100644
--- a/arch/sparc/include/asm/traps.h
+++ b/arch/sparc/include/asm/traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * traps.h:  Format of entries for the Sparc trap table.
  *
diff --git a/arch/sparc/include/asm/tsb.h b/arch/sparc/include/asm/tsb.h
index acf55063aa3d..25b6abdb3908 100644
--- a/arch/sparc/include/asm/tsb.h
+++ b/arch/sparc/include/asm/tsb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_TSB_H
 #define _SPARC64_TSB_H
 
diff --git a/arch/sparc/include/asm/tsunami.h b/arch/sparc/include/asm/tsunami.h
index 5bbd1d523baa..acaf014eff46 100644
--- a/arch/sparc/include/asm/tsunami.h
+++ b/arch/sparc/include/asm/tsunami.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * tsunami.h:  Module specific definitions for Tsunami V8 Sparcs
  *
diff --git a/arch/sparc/include/asm/ttable.h b/arch/sparc/include/asm/ttable.h
index 82e7df296abc..ede2b66cf4a0 100644
--- a/arch/sparc/include/asm/ttable.h
+++ b/arch/sparc/include/asm/ttable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_TTABLE_H
 #define _SPARC64_TTABLE_H
 
diff --git a/arch/sparc/include/asm/turbosparc.h b/arch/sparc/include/asm/turbosparc.h
index 17c73282db0a..23df777f9cea 100644
--- a/arch/sparc/include/asm/turbosparc.h
+++ b/arch/sparc/include/asm/turbosparc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * turbosparc.h:  Defines specific to the TurboSparc module.
  *            This is SRMMU stuff.
diff --git a/arch/sparc/include/asm/uaccess.h b/arch/sparc/include/asm/uaccess.h
index 9e068bf9060a..dd85bc2c2cad 100644
--- a/arch/sparc/include/asm/uaccess.h
+++ b/arch/sparc/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_UACCESS_H
 #define ___ASM_SPARC_UACCESS_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/asm/uaccess_32.h b/arch/sparc/include/asm/uaccess_32.h
index bdb1447aa1bb..de71c65b99f0 100644
--- a/arch/sparc/include/asm/uaccess_32.h
+++ b/arch/sparc/include/asm/uaccess_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * uaccess.h: User space memore access functions.
  *
diff --git a/arch/sparc/include/asm/uaccess_64.h b/arch/sparc/include/asm/uaccess_64.h
index 6d4c997d1a9e..cbb308cee394 100644
--- a/arch/sparc/include/asm/uaccess_64.h
+++ b/arch/sparc/include/asm/uaccess_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UACCESS_H
 #define _ASM_UACCESS_H
 
diff --git a/arch/sparc/include/asm/unaligned.h b/arch/sparc/include/asm/unaligned.h
index 11d2d5fb5902..7971d89d2f54 100644
--- a/arch/sparc/include/asm/unaligned.h
+++ b/arch/sparc/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_SPARC_UNALIGNED_H
 #define _ASM_SPARC_UNALIGNED_H
 
diff --git a/arch/sparc/include/asm/unistd.h b/arch/sparc/include/asm/unistd.h
index 0aac1e8f2968..b2a6a955113e 100644
--- a/arch/sparc/include/asm/unistd.h
+++ b/arch/sparc/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * System calls under the Sparc.
  *
diff --git a/arch/sparc/include/asm/upa.h b/arch/sparc/include/asm/upa.h
index 5b1633223f92..782691b30f54 100644
--- a/arch/sparc/include/asm/upa.h
+++ b/arch/sparc/include/asm/upa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_UPA_H
 #define _SPARC64_UPA_H
 
diff --git a/arch/sparc/include/asm/vaddrs.h b/arch/sparc/include/asm/vaddrs.h
index c3dbcf902034..84d054b07a6f 100644
--- a/arch/sparc/include/asm/vaddrs.h
+++ b/arch/sparc/include/asm/vaddrs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC_VADDRS_H
 #define _SPARC_VADDRS_H
 
diff --git a/arch/sparc/include/asm/vga.h b/arch/sparc/include/asm/vga.h
index f54e8b6fb197..2952d667d936 100644
--- a/arch/sparc/include/asm/vga.h
+++ b/arch/sparc/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/arch/sparc/include/asm/viking.h b/arch/sparc/include/asm/viking.h
index 989930aeb093..0bbefd184221 100644
--- a/arch/sparc/include/asm/viking.h
+++ b/arch/sparc/include/asm/viking.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * viking.h:  Defines specific to the GNU/Viking MBUS module.
  *            This is SRMMU stuff.
diff --git a/arch/sparc/include/asm/vio.h b/arch/sparc/include/asm/vio.h
index f3d4ac232690..059f0eb678e0 100644
--- a/arch/sparc/include/asm/vio.h
+++ b/arch/sparc/include/asm/vio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_VIO_H
 #define _SPARC64_VIO_H
 
diff --git a/arch/sparc/include/asm/visasm.h b/arch/sparc/include/asm/visasm.h
index 6424249d5f78..7903e84e09e0 100644
--- a/arch/sparc/include/asm/visasm.h
+++ b/arch/sparc/include/asm/visasm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_VISASM_H
 #define _SPARC64_VISASM_H
 
diff --git a/arch/sparc/include/asm/winmacro.h b/arch/sparc/include/asm/winmacro.h
index 9b7b21764cde..b6e911f5d93c 100644
--- a/arch/sparc/include/asm/winmacro.h
+++ b/arch/sparc/include/asm/winmacro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * winmacro.h: Window loading-unloading macros.
  *
diff --git a/arch/sparc/include/asm/xor.h b/arch/sparc/include/asm/xor.h
index 8ed591c7db2d..f4c651e203c4 100644
--- a/arch/sparc/include/asm/xor.h
+++ b/arch/sparc/include/asm/xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___ASM_SPARC_XOR_H
 #define ___ASM_SPARC_XOR_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/arch/sparc/include/uapi/asm/apc.h b/arch/sparc/include/uapi/asm/apc.h
index 24e9a7d4d97e..aeb369b87fcd 100644
--- a/arch/sparc/include/uapi/asm/apc.h
+++ b/arch/sparc/include/uapi/asm/apc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* apc - Driver definitions for power management functions
  * of Aurora Personality Chip (APC) on SPARCstation-4/5 and 
  * derivatives
diff --git a/arch/sparc/include/uapi/asm/asi.h b/arch/sparc/include/uapi/asm/asi.h
index 7ad7203deaec..d371b269571a 100644
--- a/arch/sparc/include/uapi/asm/asi.h
+++ b/arch/sparc/include/uapi/asm/asi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_ASI_H
 #define _SPARC_ASI_H
 
diff --git a/arch/sparc/include/uapi/asm/bitsperlong.h b/arch/sparc/include/uapi/asm/bitsperlong.h
index 40dcaa3aaa56..cd9a432278d2 100644
--- a/arch/sparc/include/uapi/asm/bitsperlong.h
+++ b/arch/sparc/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_ALPHA_BITSPERLONG_H
 #define __ASM_ALPHA_BITSPERLONG_H
 
diff --git a/arch/sparc/include/uapi/asm/byteorder.h b/arch/sparc/include/uapi/asm/byteorder.h
index ccc1b6b7de6c..216b8e59372f 100644
--- a/arch/sparc/include/uapi/asm/byteorder.h
+++ b/arch/sparc/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_BYTEORDER_H
 #define _SPARC_BYTEORDER_H
 
diff --git a/arch/sparc/include/uapi/asm/display7seg.h b/arch/sparc/include/uapi/asm/display7seg.h
index 86d4a901df24..7e9fef0c6efe 100644
--- a/arch/sparc/include/uapi/asm/display7seg.h
+++ b/arch/sparc/include/uapi/asm/display7seg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *
  * display7seg - Driver interface for the 7-segment display
diff --git a/arch/sparc/include/uapi/asm/envctrl.h b/arch/sparc/include/uapi/asm/envctrl.h
index 624fa7e2da8e..cf8aa0a14f40 100644
--- a/arch/sparc/include/uapi/asm/envctrl.h
+++ b/arch/sparc/include/uapi/asm/envctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *
  * envctrl.h: Definitions for access to the i2c environment
diff --git a/arch/sparc/include/uapi/asm/errno.h b/arch/sparc/include/uapi/asm/errno.h
index 20423e172853..81a732b902ee 100644
--- a/arch/sparc/include/uapi/asm/errno.h
+++ b/arch/sparc/include/uapi/asm/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_ERRNO_H
 #define _SPARC_ERRNO_H
 
diff --git a/arch/sparc/include/uapi/asm/fbio.h b/arch/sparc/include/uapi/asm/fbio.h
index d6cea07afb61..0dafe2c1eab7 100644
--- a/arch/sparc/include/uapi/asm/fbio.h
+++ b/arch/sparc/include/uapi/asm/fbio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_FBIO_H
 #define _UAPI__LINUX_FBIO_H
 
diff --git a/arch/sparc/include/uapi/asm/fcntl.h b/arch/sparc/include/uapi/asm/fcntl.h
index 7e8ace5bf760..67dae75e5274 100644
--- a/arch/sparc/include/uapi/asm/fcntl.h
+++ b/arch/sparc/include/uapi/asm/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_FCNTL_H
 #define _SPARC_FCNTL_H
 
diff --git a/arch/sparc/include/uapi/asm/ioctl.h b/arch/sparc/include/uapi/asm/ioctl.h
index 7d6bd51321b9..96c598fe746e 100644
--- a/arch/sparc/include/uapi/asm/ioctl.h
+++ b/arch/sparc/include/uapi/asm/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_IOCTL_H
 #define _SPARC_IOCTL_H
 
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index f5df72b93bb2..2df52711e170 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_SPARC_IOCTLS_H
 #define _UAPI_ASM_SPARC_IOCTLS_H
 
diff --git a/arch/sparc/include/uapi/asm/ipcbuf.h b/arch/sparc/include/uapi/asm/ipcbuf.h
index 66013b4fe10d..9d0d125500e2 100644
--- a/arch/sparc/include/uapi/asm/ipcbuf.h
+++ b/arch/sparc/include/uapi/asm/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __SPARC_IPCBUF_H
 #define __SPARC_IPCBUF_H
 
diff --git a/arch/sparc/include/uapi/asm/jsflash.h b/arch/sparc/include/uapi/asm/jsflash.h
index 0717d9e39d2d..68c98a54281a 100644
--- a/arch/sparc/include/uapi/asm/jsflash.h
+++ b/arch/sparc/include/uapi/asm/jsflash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * jsflash.h: OS Flash SIMM support for JavaStations.
  *
diff --git a/arch/sparc/include/uapi/asm/kvm_para.h b/arch/sparc/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/sparc/include/uapi/asm/kvm_para.h
+++ b/arch/sparc/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/sparc/include/uapi/asm/mman.h b/arch/sparc/include/uapi/asm/mman.h
index 9765896ecb2c..715a2c927e79 100644
--- a/arch/sparc/include/uapi/asm/mman.h
+++ b/arch/sparc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SPARC_MMAN_H__
 #define _UAPI__SPARC_MMAN_H__
 
diff --git a/arch/sparc/include/uapi/asm/msgbuf.h b/arch/sparc/include/uapi/asm/msgbuf.h
index efc7cbe9788f..b601c4f4d956 100644
--- a/arch/sparc/include/uapi/asm/msgbuf.h
+++ b/arch/sparc/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_MSGBUF_H
 #define _SPARC_MSGBUF_H
 
diff --git a/arch/sparc/include/uapi/asm/openpromio.h b/arch/sparc/include/uapi/asm/openpromio.h
index 917fb8e9c633..8817f7d1a70c 100644
--- a/arch/sparc/include/uapi/asm/openpromio.h
+++ b/arch/sparc/include/uapi/asm/openpromio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef	_SPARC_OPENPROMIO_H
 #define	_SPARC_OPENPROMIO_H
 
diff --git a/arch/sparc/include/uapi/asm/param.h b/arch/sparc/include/uapi/asm/param.h
index 0bc356bf8c50..057d7135e4d0 100644
--- a/arch/sparc/include/uapi/asm/param.h
+++ b/arch/sparc/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASMSPARC_PARAM_H
 #define _ASMSPARC_PARAM_H
 
diff --git a/arch/sparc/include/uapi/asm/perfctr.h b/arch/sparc/include/uapi/asm/perfctr.h
index 214feefa577c..316b837bcb8f 100644
--- a/arch/sparc/include/uapi/asm/perfctr.h
+++ b/arch/sparc/include/uapi/asm/perfctr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*----------------------------------------
   PERFORMANCE INSTRUMENTATION  
   Guillaume Thouvenin           08/10/98
diff --git a/arch/sparc/include/uapi/asm/poll.h b/arch/sparc/include/uapi/asm/poll.h
index 091d3ad2e830..72356c999125 100644
--- a/arch/sparc/include/uapi/asm/poll.h
+++ b/arch/sparc/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __SPARC_POLL_H
 #define __SPARC_POLL_H
 
diff --git a/arch/sparc/include/uapi/asm/posix_types.h b/arch/sparc/include/uapi/asm/posix_types.h
index 156220ed99eb..fec499d6efb7 100644
--- a/arch/sparc/include/uapi/asm/posix_types.h
+++ b/arch/sparc/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is generally used by user-level software, so you need to
  * be a little careful about namespace pollution etc.  Also, we cannot
diff --git a/arch/sparc/include/uapi/asm/psr.h b/arch/sparc/include/uapi/asm/psr.h
index 2f0ed856530b..e41f65f0aebd 100644
--- a/arch/sparc/include/uapi/asm/psr.h
+++ b/arch/sparc/include/uapi/asm/psr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * psr.h: This file holds the macros for masking off various parts of
  *        the processor status register on the Sparc. This is valid
diff --git a/arch/sparc/include/uapi/asm/psrcompat.h b/arch/sparc/include/uapi/asm/psrcompat.h
index 44b6327dbbf5..1eaffbe0d1e2 100644
--- a/arch/sparc/include/uapi/asm/psrcompat.h
+++ b/arch/sparc/include/uapi/asm/psrcompat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC64_PSRCOMPAT_H
 #define _SPARC64_PSRCOMPAT_H
 
diff --git a/arch/sparc/include/uapi/asm/pstate.h b/arch/sparc/include/uapi/asm/pstate.h
index cf832e14aa05..b6999c9e7e86 100644
--- a/arch/sparc/include/uapi/asm/pstate.h
+++ b/arch/sparc/include/uapi/asm/pstate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC64_PSTATE_H
 #define _SPARC64_PSTATE_H
 
diff --git a/arch/sparc/include/uapi/asm/ptrace.h b/arch/sparc/include/uapi/asm/ptrace.h
index 56fe4ea73feb..abe640037a55 100644
--- a/arch/sparc/include/uapi/asm/ptrace.h
+++ b/arch/sparc/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SPARC_PTRACE_H
 #define _UAPI__SPARC_PTRACE_H
 
diff --git a/arch/sparc/include/uapi/asm/resource.h b/arch/sparc/include/uapi/asm/resource.h
index fe163cafb4c7..cbe2de778838 100644
--- a/arch/sparc/include/uapi/asm/resource.h
+++ b/arch/sparc/include/uapi/asm/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * resource.h: Resource definitions.
  *
diff --git a/arch/sparc/include/uapi/asm/sembuf.h b/arch/sparc/include/uapi/asm/sembuf.h
index faee1be08d67..f49b0ffa0ab8 100644
--- a/arch/sparc/include/uapi/asm/sembuf.h
+++ b/arch/sparc/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_SEMBUF_H
 #define _SPARC_SEMBUF_H
 
diff --git a/arch/sparc/include/uapi/asm/setup.h b/arch/sparc/include/uapi/asm/setup.h
index 533768450872..3c208a4dd464 100644
--- a/arch/sparc/include/uapi/asm/setup.h
+++ b/arch/sparc/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	Just a place holder. 
  */
diff --git a/arch/sparc/include/uapi/asm/shmbuf.h b/arch/sparc/include/uapi/asm/shmbuf.h
index 83a16055363f..286631db705c 100644
--- a/arch/sparc/include/uapi/asm/shmbuf.h
+++ b/arch/sparc/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_SHMBUF_H
 #define _SPARC_SHMBUF_H
 
diff --git a/arch/sparc/include/uapi/asm/sigcontext.h b/arch/sparc/include/uapi/asm/sigcontext.h
index ae5704fa77ad..043dd4b92026 100644
--- a/arch/sparc/include/uapi/asm/sigcontext.h
+++ b/arch/sparc/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * There isn't anything here anymore, but the file must not be empty or patch
  * will delete it.
diff --git a/arch/sparc/include/uapi/asm/siginfo.h b/arch/sparc/include/uapi/asm/siginfo.h
index 157f46fe374f..896ce447d16a 100644
--- a/arch/sparc/include/uapi/asm/siginfo.h
+++ b/arch/sparc/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SPARC_SIGINFO_H
 #define _UAPI__SPARC_SIGINFO_H
 
diff --git a/arch/sparc/include/uapi/asm/signal.h b/arch/sparc/include/uapi/asm/signal.h
index f387400fcfdf..ff9505923b9a 100644
--- a/arch/sparc/include/uapi/asm/signal.h
+++ b/arch/sparc/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SPARC_SIGNAL_H
 #define _UAPI__SPARC_SIGNAL_H
 
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index b2f5c50d0947..d58520c2e6ff 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SOCKET_H
 #define _ASM_SOCKET_H
 
diff --git a/arch/sparc/include/uapi/asm/sockios.h b/arch/sparc/include/uapi/asm/sockios.h
index 990ea746486b..18a3ec14a847 100644
--- a/arch/sparc/include/uapi/asm/sockios.h
+++ b/arch/sparc/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SPARC_SOCKIOS_H
 #define _ASM_SPARC_SOCKIOS_H
 
diff --git a/arch/sparc/include/uapi/asm/stat.h b/arch/sparc/include/uapi/asm/stat.h
index 2f0583a2c689..b6ec4eb217f7 100644
--- a/arch/sparc/include/uapi/asm/stat.h
+++ b/arch/sparc/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __SPARC_STAT_H
 #define __SPARC_STAT_H
 
diff --git a/arch/sparc/include/uapi/asm/statfs.h b/arch/sparc/include/uapi/asm/statfs.h
index 55e607ad461d..20c8f5bd340e 100644
--- a/arch/sparc/include/uapi/asm/statfs.h
+++ b/arch/sparc/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef ___ASM_SPARC_STATFS_H
 #define ___ASM_SPARC_STATFS_H
 
diff --git a/arch/sparc/include/uapi/asm/swab.h b/arch/sparc/include/uapi/asm/swab.h
index 4c7c12d69bea..6b1b3f1ad725 100644
--- a/arch/sparc/include/uapi/asm/swab.h
+++ b/arch/sparc/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _SPARC_SWAB_H
 #define _SPARC_SWAB_H
 
diff --git a/arch/sparc/include/uapi/asm/termbits.h b/arch/sparc/include/uapi/asm/termbits.h
index dd91642fcca7..ce5ad5d0f105 100644
--- a/arch/sparc/include/uapi/asm/termbits.h
+++ b/arch/sparc/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_SPARC_TERMBITS_H
 #define _UAPI_SPARC_TERMBITS_H
 
diff --git a/arch/sparc/include/uapi/asm/termios.h b/arch/sparc/include/uapi/asm/termios.h
index ea6f09e51e53..ee86f4093d83 100644
--- a/arch/sparc/include/uapi/asm/termios.h
+++ b/arch/sparc/include/uapi/asm/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_SPARC_TERMIOS_H
 #define _UAPI_SPARC_TERMIOS_H
 
diff --git a/arch/sparc/include/uapi/asm/traps.h b/arch/sparc/include/uapi/asm/traps.h
index a4eceace6ccf..930db746f8bd 100644
--- a/arch/sparc/include/uapi/asm/traps.h
+++ b/arch/sparc/include/uapi/asm/traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * traps.h:  Format of entries for the Sparc trap table.
  *
diff --git a/arch/sparc/include/uapi/asm/uctx.h b/arch/sparc/include/uapi/asm/uctx.h
index dc937c75ffdd..13a13198e04f 100644
--- a/arch/sparc/include/uapi/asm/uctx.h
+++ b/arch/sparc/include/uapi/asm/uctx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * uctx.h: Sparc64 {set,get}context() register state layouts.
  *
diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h
index ae77df75bffa..09acf0ddec10 100644
--- a/arch/sparc/include/uapi/asm/unistd.h
+++ b/arch/sparc/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * System calls under the Sparc.
  *
diff --git a/arch/sparc/include/uapi/asm/utrap.h b/arch/sparc/include/uapi/asm/utrap.h
index b10e527c22d9..d890b7fc6e83 100644
--- a/arch/sparc/include/uapi/asm/utrap.h
+++ b/arch/sparc/include/uapi/asm/utrap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm/utrap.h
  *
diff --git a/arch/sparc/include/uapi/asm/watchdog.h b/arch/sparc/include/uapi/asm/watchdog.h
index 5baf2d3919cf..497ac19a9e4e 100644
--- a/arch/sparc/include/uapi/asm/watchdog.h
+++ b/arch/sparc/include/uapi/asm/watchdog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *
  * watchdog - Driver interface for the hardware watchdog timers
diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index aac609889ee4..8de9617589a5 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 #
 # Makefile for the linux kernel.
diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index c988e7fa069b..ecd05bc0a104 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* apc - Driver implementation for power management functions
  * of Aurora Personality Chip (APC) on SPARCstation-4/5 and
  * derivatives.
diff --git a/arch/sparc/kernel/asm-offsets.c b/arch/sparc/kernel/asm-offsets.c
index 3f09e1c83f58..5784f2df489a 100644
--- a/arch/sparc/kernel/asm-offsets.c
+++ b/arch/sparc/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This program is used to generate definitions needed by
  * assembly language modules.
diff --git a/arch/sparc/kernel/audit.c b/arch/sparc/kernel/audit.c
index 2585c1e14bcc..a6e91bf34d48 100644
--- a/arch/sparc/kernel/audit.c
+++ b/arch/sparc/kernel/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/arch/sparc/kernel/auxio_32.c b/arch/sparc/kernel/auxio_32.c
index ae88c223e4d3..a32d588174f2 100644
--- a/arch/sparc/kernel/auxio_32.c
+++ b/arch/sparc/kernel/auxio_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* auxio.c: Probing for the Sparc AUXIO register at boot time.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/auxio_64.c b/arch/sparc/kernel/auxio_64.c
index 086435c17981..4e8f56c3793c 100644
--- a/arch/sparc/kernel/auxio_64.c
+++ b/arch/sparc/kernel/auxio_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* auxio.c: Probing for the Sparc AUXIO register at boot time.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/btext.c b/arch/sparc/kernel/btext.c
index 987f7ec497cc..5869773f3dc4 100644
--- a/arch/sparc/kernel/btext.c
+++ b/arch/sparc/kernel/btext.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Procedures for drawing on the screen early on in the boot process.
  *
diff --git a/arch/sparc/kernel/central.c b/arch/sparc/kernel/central.c
index 4696958299e9..38ae4fdc9eb4 100644
--- a/arch/sparc/kernel/central.c
+++ b/arch/sparc/kernel/central.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* central.c: Central FHC driver for Sunfire/Starfire/Wildfire.
  *
  * Copyright (C) 1997, 1999, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/cherrs.S b/arch/sparc/kernel/cherrs.S
index 655628def68e..7f3d3d264390 100644
--- a/arch/sparc/kernel/cherrs.S
+++ b/arch/sparc/kernel/cherrs.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	/* These get patched into the trap table at boot time
 	 * once we know we have a cheetah processor.
 	 */
diff --git a/arch/sparc/kernel/compat_audit.c b/arch/sparc/kernel/compat_audit.c
index e5611cd428f1..10eeb4f15b20 100644
--- a/arch/sparc/kernel/compat_audit.c
+++ b/arch/sparc/kernel/compat_audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define __32bit_syscall_numbers__
 #include <asm/unistd.h>
 #include "kernel.h"
diff --git a/arch/sparc/kernel/cpu.c b/arch/sparc/kernel/cpu.c
index ef4f18f7a674..4401dee30018 100644
--- a/arch/sparc/kernel/cpu.c
+++ b/arch/sparc/kernel/cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* cpu.c: Dinky routines to look for the kind of Sparc cpu
  *        we are on.
  *
diff --git a/arch/sparc/kernel/cpumap.c b/arch/sparc/kernel/cpumap.c
index 90d550bbfeef..d1d52822603d 100644
--- a/arch/sparc/kernel/cpumap.c
+++ b/arch/sparc/kernel/cpumap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* cpumap.c: used for optimizing CPU assignment
  *
  * Copyright (C) 2009 Hong H. Pham <hong.pham@windriver.com>
diff --git a/arch/sparc/kernel/cpumap.h b/arch/sparc/kernel/cpumap.h
index 9dac398c434a..7d5b774862e7 100644
--- a/arch/sparc/kernel/cpumap.h
+++ b/arch/sparc/kernel/cpumap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CPUMAP_H
 #define _CPUMAP_H
 
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index 8d5d09f09caf..23b6e50d4ada 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* devices.c: Initial scan of the prom device tree for important
  *	      Sparc device nodes which we need to find.
  *
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
index b667aa6f28f6..f73e7597c971 100644
--- a/arch/sparc/kernel/dma.c
+++ b/arch/sparc/kernel/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/dma-mapping.h>
 #include <linux/dma-debug.h>
diff --git a/arch/sparc/kernel/dtlb_miss.S b/arch/sparc/kernel/dtlb_miss.S
index 09a6a15a7105..fb9c788437b0 100644
--- a/arch/sparc/kernel/dtlb_miss.S
+++ b/arch/sparc/kernel/dtlb_miss.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* DTLB ** ICACHE line 1: Context 0 check and TSB load	*/
 	ldxa	[%g0] ASI_DMMU_TSB_8KB_PTR, %g1	! Get TSB 8K pointer
 	ldxa	[%g0] ASI_DMMU, %g6		! Get TAG TARGET
diff --git a/arch/sparc/kernel/dtlb_prot.S b/arch/sparc/kernel/dtlb_prot.S
index 4087a62f96b0..9f945771bbd1 100644
--- a/arch/sparc/kernel/dtlb_prot.S
+++ b/arch/sparc/kernel/dtlb_prot.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dtlb_prot.S: DTLB protection trap strategy.
  *              This is included directly into the trap table.
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index acf8314cec48..264b186478f3 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ebus.c: EBUS DMA library code.
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index d85bdb999819..358fe4ef08a2 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* arch/sparc/kernel/entry.S:  Sparc trap low-level entry points.
  *
  * Copyright (C) 1995, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 0f679421b468..7378567b601f 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ENTRY_H
 #define _ENTRY_H
 
diff --git a/arch/sparc/kernel/etrap_32.S b/arch/sparc/kernel/etrap_32.S
index e3e80d65e39a..9f243f918619 100644
--- a/arch/sparc/kernel/etrap_32.S
+++ b/arch/sparc/kernel/etrap_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * etrap.S: Sparc trap window preparation for entry into the
  *          Linux kernel.
diff --git a/arch/sparc/kernel/etrap_64.S b/arch/sparc/kernel/etrap_64.S
index 5c237467d156..5c77a2e0e991 100644
--- a/arch/sparc/kernel/etrap_64.S
+++ b/arch/sparc/kernel/etrap_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * etrap.S: Preparing for entry into the kernel on Sparc V9.
  *
diff --git a/arch/sparc/kernel/fpu_traps.S b/arch/sparc/kernel/fpu_traps.S
index 336d2750fe78..051659e29c7a 100644
--- a/arch/sparc/kernel/fpu_traps.S
+++ b/arch/sparc/kernel/fpu_traps.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	/* This is trivial with the new code... */
 	.globl		do_fpdis
 	.type		do_fpdis,#function
diff --git a/arch/sparc/kernel/ftrace.c b/arch/sparc/kernel/ftrace.c
index cec54dc4ab81..915dda4ae412 100644
--- a/arch/sparc/kernel/ftrace.c
+++ b/arch/sparc/kernel/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/spinlock.h>
 #include <linux/hardirq.h>
 #include <linux/ftrace.h>
diff --git a/arch/sparc/kernel/getsetcc.S b/arch/sparc/kernel/getsetcc.S
index a14d272d2061..181e09fd1c55 100644
--- a/arch/sparc/kernel/getsetcc.S
+++ b/arch/sparc/kernel/getsetcc.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.globl		getcc
 	.type		getcc,#function
 getcc:
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index 7274e43ff9be..e55f2c075165 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * head.S: The initial boot code for the Sparc port of Linux.
  *
diff --git a/arch/sparc/kernel/head_64.S b/arch/sparc/kernel/head_64.S
index 4de9fbd1a177..9e293de12052 100644
--- a/arch/sparc/kernel/head_64.S
+++ b/arch/sparc/kernel/head_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* head.S: Initial boot code for the Sparc64 port of Linux.
  *
  * Copyright (C) 1996, 1997, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/hvapi.c b/arch/sparc/kernel/hvapi.c
index d41ce33d87d6..a2bc1b2955b4 100644
--- a/arch/sparc/kernel/hvapi.c
+++ b/arch/sparc/kernel/hvapi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* hvapi.c: Hypervisor API management.
  *
  * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/hvcalls.S b/arch/sparc/kernel/hvcalls.S
index e57007ff7f8f..bdfd3d8c6707 100644
--- a/arch/sparc/kernel/hvcalls.S
+++ b/arch/sparc/kernel/hvcalls.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	/* %o0: devhandle
 	 * %o1:	devino
 	 *
diff --git a/arch/sparc/kernel/hvtramp.S b/arch/sparc/kernel/hvtramp.S
index cdbfec299f2f..f39220471b65 100644
--- a/arch/sparc/kernel/hvtramp.S
+++ b/arch/sparc/kernel/hvtramp.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* hvtramp.S: Hypervisor start-cpu trampoline code.
  *
  * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c
index f95dd11b75ea..d6c46d512220 100644
--- a/arch/sparc/kernel/idprom.c
+++ b/arch/sparc/kernel/idprom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * idprom.c: Routines to load the idprom into kernel addresses and
  *           interpret the data contained within.
diff --git a/arch/sparc/kernel/iommu.c b/arch/sparc/kernel/iommu.c
index fcbcc031f615..b08dc3416f06 100644
--- a/arch/sparc/kernel/iommu.c
+++ b/arch/sparc/kernel/iommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* iommu.c: Generic sparc64 IOMMU support.
  *
  * Copyright (C) 1999, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/iommu_common.h b/arch/sparc/kernel/iommu_common.h
index 5ea5c192b1d9..e3c02ba32500 100644
--- a/arch/sparc/kernel/iommu_common.h
+++ b/arch/sparc/kernel/iommu_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* iommu_common.h: UltraSparc SBUS/PCI common iommu declarations.
  *
  * Copyright (C) 1999, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 12894f259bea..7eeef80c02f7 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ioport.c:  Simple io mapping allocator.
  *
diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h
index 70a0b8ddd0ba..b02026ad6e34 100644
--- a/arch/sparc/kernel/irq.h
+++ b/arch/sparc/kernel/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/platform_device.h>
 
 #include <asm/cpu_type.h>
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index cac4a5554c0e..e8452be5123b 100644
--- a/arch/sparc/kernel/irq_32.c
+++ b/arch/sparc/kernel/irq_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Interrupt request handling routines. On the
  * Sparc the IRQs are basically 'cast in stone'
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index 99dd133a029f..d66dde833f5e 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* irq.c: UltraSparc IRQ handling/init/registry.
  *
  * Copyright (C) 1997, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/itlb_miss.S b/arch/sparc/kernel/itlb_miss.S
index 5a8377b54955..5a5d92482e8d 100644
--- a/arch/sparc/kernel/itlb_miss.S
+++ b/arch/sparc/kernel/itlb_miss.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ITLB ** ICACHE line 1: Context 0 check and TSB load	*/
 	ldxa	[%g0] ASI_IMMU_TSB_8KB_PTR, %g1	! Get TSB 8K pointer
 	ldxa	[%g0] ASI_IMMU, %g6		! Get TAG TARGET
diff --git a/arch/sparc/kernel/ivec.S b/arch/sparc/kernel/ivec.S
index d29f92ebca5e..94ba2c3a29c1 100644
--- a/arch/sparc/kernel/ivec.S
+++ b/arch/sparc/kernel/ivec.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	/* The registers for cross calls will be:
 	 *
 	 * DATA 0: [low 32-bits]  Address of function to call, jmp to this
diff --git a/arch/sparc/kernel/jump_label.c b/arch/sparc/kernel/jump_label.c
index 93adde1ac166..7f8eac51df33 100644
--- a/arch/sparc/kernel/jump_label.c
+++ b/arch/sparc/kernel/jump_label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/mutex.h>
diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index b625db4cfb78..ddffd368e057 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPARC_KERNEL_H
 #define __SPARC_KERNEL_H
 
diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c
index 6e8e318c57be..5868fc333ea8 100644
--- a/arch/sparc/kernel/kgdb_32.c
+++ b/arch/sparc/kernel/kgdb_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* kgdb.c: KGDB support for 32-bit sparc.
  *
  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index cbf21d0870e0..d5f7dc6323d5 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* kgdb.c: KGDB support for 64-bit sparc.
  *
  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c
index 2d13a4fc0384..ab4ba4347941 100644
--- a/arch/sparc/kernel/kprobes.c
+++ b/arch/sparc/kernel/kprobes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* arch/sparc64/kernel/kprobes.c
  *
  * Copyright (C) 2004 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/kstack.h b/arch/sparc/kernel/kstack.h
index 53dfb92e09fb..b3c5e8f2443a 100644
--- a/arch/sparc/kernel/kstack.h
+++ b/arch/sparc/kernel/kstack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KSTACK_H
 #define _KSTACK_H
 
diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S
index f22bec0db645..1cf91c05e275 100644
--- a/arch/sparc/kernel/ktlb.S
+++ b/arch/sparc/kernel/ktlb.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling.
  *
  * Copyright (C) 1995, 1997, 2005, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/ldc.c b/arch/sparc/kernel/ldc.c
index acffbc894ab0..86b625f9d8dc 100644
--- a/arch/sparc/kernel/ldc.c
+++ b/arch/sparc/kernel/ldc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ldc.c: Logical Domain Channel link-layer protocol driver.
  *
  * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/led.c b/arch/sparc/kernel/led.c
index e278bf52963b..519f5ba7ed7e 100644
--- a/arch/sparc/kernel/led.c
+++ b/arch/sparc/kernel/led.c
@@ -31,19 +31,20 @@ static inline void led_toggle(void)
 }
 
 static struct timer_list led_blink_timer;
+static unsigned long led_blink_timer_timeout;
 
-static void led_blink(unsigned long timeout)
+static void led_blink(struct timer_list *unused)
 {
+	unsigned long timeout = led_blink_timer_timeout;
+
 	led_toggle();
 
 	/* reschedule */
 	if (!timeout) { /* blink according to load */
 		led_blink_timer.expires = jiffies +
 			((1 + (avenrun[0] >> FSHIFT)) * HZ);
-		led_blink_timer.data = 0;
 	} else { /* blink at user specified interval */
 		led_blink_timer.expires = jiffies + (timeout * HZ);
-		led_blink_timer.data = timeout;
 	}
 	add_timer(&led_blink_timer);
 }
@@ -88,9 +89,11 @@ static ssize_t led_proc_write(struct file *file, const char __user *buffer,
 	} else if (!strcmp(buf, "toggle")) {
 		led_toggle();
 	} else if ((*buf > '0') && (*buf <= '9')) {
-		led_blink(simple_strtoul(buf, NULL, 10));
+		led_blink_timer_timeout = simple_strtoul(buf, NULL, 10);
+		led_blink(&led_blink_timer);
 	} else if (!strcmp(buf, "load")) {
-		led_blink(0);
+		led_blink_timer_timeout = 0;
+		led_blink(&led_blink_timer);
 	} else {
 		auxio_set_led(AUXIO_LED_OFF);
 	}
@@ -115,8 +118,7 @@ static struct proc_dir_entry *led;
 
 static int __init led_init(void)
 {
-	init_timer(&led_blink_timer);
-	led_blink_timer.function = led_blink;
+	timer_setup(&led_blink_timer, led_blink, 0);
 
 	led = proc_create("led", 0, NULL, &led_proc_fops);
 	if (!led)
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index afcdd5e4f43f..84b233752f28 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2009 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB
  * Copyright (C) 2009 Konrad Eisele (konrad@gaisler.com) Aeroflex Gaisler AB
diff --git a/arch/sparc/kernel/leon_pci.c b/arch/sparc/kernel/leon_pci.c
index 98c223edac84..15b59169c535 100644
--- a/arch/sparc/kernel/leon_pci.c
+++ b/arch/sparc/kernel/leon_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * leon_pci.c: LEON Host PCI support
  *
diff --git a/arch/sparc/kernel/leon_pci_grpci1.c b/arch/sparc/kernel/leon_pci_grpci1.c
index 83ba5005d44c..e6935d0ac1ec 100644
--- a/arch/sparc/kernel/leon_pci_grpci1.c
+++ b/arch/sparc/kernel/leon_pci_grpci1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * leon_pci_grpci1.c: GRPCI1 Host PCI driver
  *
diff --git a/arch/sparc/kernel/leon_pci_grpci2.c b/arch/sparc/kernel/leon_pci_grpci2.c
index ff0e5c90310f..ca22f93d9045 100644
--- a/arch/sparc/kernel/leon_pci_grpci2.c
+++ b/arch/sparc/kernel/leon_pci_grpci2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * leon_pci_grpci2.c: GRPCI2 Host PCI driver
  *
diff --git a/arch/sparc/kernel/leon_pmc.c b/arch/sparc/kernel/leon_pmc.c
index ddcf950282ed..065e2d4b7290 100644
--- a/arch/sparc/kernel/leon_pmc.c
+++ b/arch/sparc/kernel/leon_pmc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* leon_pmc.c: LEON Power-down cpu_idle() handler
  *
  * Copyright (C) 2011 Daniel Hellstrom (daniel@gaisler.com) Aeroflex Gaisler AB
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index db7acf27bea2..da6f1486318e 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* leon_smp.c: Sparc-Leon SMP support.
  *
  * based on sun4m_smp.c
diff --git a/arch/sparc/kernel/mdesc.c b/arch/sparc/kernel/mdesc.c
index fa466ce45bc9..1ef6156b1530 100644
--- a/arch/sparc/kernel/mdesc.c
+++ b/arch/sparc/kernel/mdesc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* mdesc.c: Sun4V machine description handling.
  *
  * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/misctrap.S b/arch/sparc/kernel/misctrap.S
index 9276d2f0dd86..b5c84177521e 100644
--- a/arch/sparc/kernel/misctrap.S
+++ b/arch/sparc/kernel/misctrap.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_KGDB
 	.globl		arch_kgdb_breakpoint
 	.type		arch_kgdb_breakpoint,#function
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 192a617a32f3..df39580f398d 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Kernel module help for sparc64.
  *
  * Copyright (C) 2001 Rusty Russell.
diff --git a/arch/sparc/kernel/of_device_32.c b/arch/sparc/kernel/of_device_32.c
index 185aa96fa5be..3641a294ed54 100644
--- a/arch/sparc/kernel/of_device_32.c
+++ b/arch/sparc/kernel/of_device_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/of.h>
diff --git a/arch/sparc/kernel/of_device_64.c b/arch/sparc/kernel/of_device_64.c
index 7bbdc26d9512..44e4d4435bed 100644
--- a/arch/sparc/kernel/of_device_64.c
+++ b/arch/sparc/kernel/of_device_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/kernel.h>
 #include <linux/of.h>
diff --git a/arch/sparc/kernel/of_device_common.h b/arch/sparc/kernel/of_device_common.h
index cdfd23992841..3d66230c61b6 100644
--- a/arch/sparc/kernel/of_device_common.h
+++ b/arch/sparc/kernel/of_device_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OF_DEVICE_COMMON_H
 #define _OF_DEVICE_COMMON_H
 
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 3f8670c92951..220d0f36560a 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci.c: UltraSparc PCI controller support.
  *
  * Copyright (C) 1997, 1998, 1999 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/kernel/pci_common.c b/arch/sparc/kernel/pci_common.c
index 33524c1d5328..1e10fb26fa88 100644
--- a/arch/sparc/kernel/pci_common.c
+++ b/arch/sparc/kernel/pci_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_common.c: PCI controller common support.
  *
  * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_fire.c b/arch/sparc/kernel/pci_fire.c
index 11a1f0d289d2..be71ae086622 100644
--- a/arch/sparc/kernel/pci_fire.c
+++ b/arch/sparc/kernel/pci_fire.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_fire.c: Sun4u platform PCI-E controller support.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_impl.h b/arch/sparc/kernel/pci_impl.h
index 37222ca849df..ac172961d276 100644
--- a/arch/sparc/kernel/pci_impl.h
+++ b/arch/sparc/kernel/pci_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* pci_impl.h: Helper definitions for PCI controller support.
  *
  * Copyright (C) 1999, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_msi.c b/arch/sparc/kernel/pci_msi.c
index 84e16d81a6d8..1994d7638406 100644
--- a/arch/sparc/kernel/pci_msi.c
+++ b/arch/sparc/kernel/pci_msi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_msi.c: Sparc64 MSI support common layer.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_psycho.c b/arch/sparc/kernel/pci_psycho.c
index 7dce27b3c761..f413371da387 100644
--- a/arch/sparc/kernel/pci_psycho.c
+++ b/arch/sparc/kernel/pci_psycho.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_psycho.c: PSYCHO/U2P specific PCI controller support.
  *
  * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_sabre.c b/arch/sparc/kernel/pci_sabre.c
index 00a616ffa35b..8107286be9ab 100644
--- a/arch/sparc/kernel/pci_sabre.c
+++ b/arch/sparc/kernel/pci_sabre.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_sabre.c: Sabre specific PCI controller support.
  *
  * Copyright (C) 1997, 1998, 1999, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_schizo.c b/arch/sparc/kernel/pci_schizo.c
index c664d3e3aa8d..934b97c72f7c 100644
--- a/arch/sparc/kernel/pci_schizo.c
+++ b/arch/sparc/kernel/pci_schizo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_schizo.c: SCHIZO/TOMATILLO specific PCI controller support.
  *
  * Copyright (C) 2001, 2002, 2003, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_sun4v.c b/arch/sparc/kernel/pci_sun4v.c
index 9ebebf1fd93d..249367228c33 100644
--- a/arch/sparc/kernel/pci_sun4v.c
+++ b/arch/sparc/kernel/pci_sun4v.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pci_sun4v.c: SUN4V specific PCI controller support.
  *
  * Copyright (C) 2006, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_sun4v.h b/arch/sparc/kernel/pci_sun4v.h
index 22603a4e48bf..d47263a9901a 100644
--- a/arch/sparc/kernel/pci_sun4v.h
+++ b/arch/sparc/kernel/pci_sun4v.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* pci_sun4v.h: SUN4V specific PCI controller support.
  *
  * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/pci_sun4v_asm.S b/arch/sparc/kernel/pci_sun4v_asm.S
index 578f09657916..2b8051871a15 100644
--- a/arch/sparc/kernel/pci_sun4v_asm.S
+++ b/arch/sparc/kernel/pci_sun4v_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* pci_sun4v_asm: Hypervisor calls for PCI support.
  *
  * Copyright (C) 2006, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 4a133c052af8..22f8774977d5 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * pcic.c: MicroSPARC-IIep PCI controller support
  *
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 710f3278d448..5c1f54758312 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Performance event support for sparc64.
  *
  * Copyright (C) 2009, 2010 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 3b26cf62df6d..b5c1eb33b951 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* pmc - Driver implementation for power management functions
  * of Power Management Controller (PMC) on SPARCstation-Voyager.
  *
diff --git a/arch/sparc/kernel/power.c b/arch/sparc/kernel/power.c
index 4b60f385c98f..92627abce311 100644
--- a/arch/sparc/kernel/power.c
+++ b/arch/sparc/kernel/power.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* power.c: Power management driver.
  *
  * Copyright (C) 1999, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index 9245f93398c7..d9662cf7e648 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  linux/arch/sparc/kernel/process.c
  *
  *  Copyright (C) 1995, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index 44e5da405f96..318efd784a0b 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  arch/sparc64/kernel/process.c
  *
  *  Copyright (C) 1995, 1996, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/prom.h b/arch/sparc/kernel/prom.h
index 890281b12b28..26a1cca7c761 100644
--- a/arch/sparc/kernel/prom.h
+++ b/arch/sparc/kernel/prom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PROM_H
 #define __PROM_H
 
diff --git a/arch/sparc/kernel/prom_irqtrans.c b/arch/sparc/kernel/prom_irqtrans.c
index 40e4936bd479..f3fecac7facb 100644
--- a/arch/sparc/kernel/prom_irqtrans.c
+++ b/arch/sparc/kernel/prom_irqtrans.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/init.h>
diff --git a/arch/sparc/kernel/psycho_common.c b/arch/sparc/kernel/psycho_common.c
index 8db48e808ed4..81aa91e5c0e6 100644
--- a/arch/sparc/kernel/psycho_common.c
+++ b/arch/sparc/kernel/psycho_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* psycho_common.c: Code common to PSYCHO and derivative PCI controllers.
  *
  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/psycho_common.h b/arch/sparc/kernel/psycho_common.h
index 05a6e30a928e..6925231c50e4 100644
--- a/arch/sparc/kernel/psycho_common.h
+++ b/arch/sparc/kernel/psycho_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PSYCHO_COMMON_H
 #define _PSYCHO_COMMON_H
 
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index eca3dc76793c..16b50afe7b52 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ptrace.c: Sparc process tracing support.
  *
  * Copyright (C) 1996, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/reboot.c b/arch/sparc/kernel/reboot.c
index eba7d918162a..7933ee365207 100644
--- a/arch/sparc/kernel/reboot.c
+++ b/arch/sparc/kernel/reboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* reboot.c: reboot/shutdown/halt/poweroff handling
  *
  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S
index 6c34de0c2abd..dca8ed810046 100644
--- a/arch/sparc/kernel/rtrap_32.S
+++ b/arch/sparc/kernel/rtrap_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * rtrap.S: Return from Sparc trap low-level code.
  *
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index dff86fad0a1f..0b21042ab181 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * rtrap.S: Preparing for return from trap on Sparc V9.
  *
diff --git a/arch/sparc/kernel/sbus.c b/arch/sparc/kernel/sbus.c
index be5bdf93c767..c133dfc37c5c 100644
--- a/arch/sparc/kernel/sbus.c
+++ b/arch/sparc/kernel/sbus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sbus.c: UltraSparc SBUS controller support.
  *
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index 6722308d1a98..2e3a3e203061 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/sparc/kernel/setup.c
  *
diff --git a/arch/sparc/kernel/setup_64.c b/arch/sparc/kernel/setup_64.c
index db4c4d7e28a0..34f7a533a74f 100644
--- a/arch/sparc/kernel/setup_64.c
+++ b/arch/sparc/kernel/setup_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/sparc64/kernel/setup.c
  *
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index 0e4c08c45a37..5c572de64c74 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  arch/sparc64/kernel/signal32.c
  *
  *  Copyright (C) 1991, 1992  Linus Torvalds
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 62c3e255ae7c..5665261cee37 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  linux/arch/sparc/kernel/signal.c
  *
  *  Copyright (C) 1991, 1992  Linus Torvalds
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 965d50e833e7..20426a1c28f2 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/sparc64/kernel/signal.c
  *
diff --git a/arch/sparc/kernel/sigutil.h b/arch/sparc/kernel/sigutil.h
index d223aa432bb6..21d332d8bddd 100644
--- a/arch/sparc/kernel/sigutil.h
+++ b/arch/sparc/kernel/sigutil.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SIGUTIL_H
 #define _SIGUTIL_H
 
diff --git a/arch/sparc/kernel/sigutil_32.c b/arch/sparc/kernel/sigutil_32.c
index e5fe8cef9a69..1e9fae56a853 100644
--- a/arch/sparc/kernel/sigutil_32.c
+++ b/arch/sparc/kernel/sigutil_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/thread_info.h>
diff --git a/arch/sparc/kernel/sigutil_64.c b/arch/sparc/kernel/sigutil_64.c
index 36aadcbeac69..512e4639e4a1 100644
--- a/arch/sparc/kernel/sigutil_64.c
+++ b/arch/sparc/kernel/sigutil_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/thread_info.h>
diff --git a/arch/sparc/kernel/smp_32.c b/arch/sparc/kernel/smp_32.c
index e80e6ba3d500..e078680a1768 100644
--- a/arch/sparc/kernel/smp_32.c
+++ b/arch/sparc/kernel/smp_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* smp.c: Sparc SMP support.
  *
  * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index 4898329970c5..c50182cd2f64 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* smp.c: Sparc64 SMP support.
  *
  * Copyright (C) 1997, 2007, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/spiterrs.S b/arch/sparc/kernel/spiterrs.S
index d7e540842809..5427af44099a 100644
--- a/arch/sparc/kernel/spiterrs.S
+++ b/arch/sparc/kernel/spiterrs.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	/* We need to carefully read the error status, ACK the errors,
 	 * prevent recursive traps, and pass the information on to C
 	 * code for logging.
diff --git a/arch/sparc/kernel/sstate.c b/arch/sparc/kernel/sstate.c
index 3caed4023589..ac8677c3841e 100644
--- a/arch/sparc/kernel/sstate.c
+++ b/arch/sparc/kernel/sstate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sstate.c: System soft state support.
  *
  * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/starfire.c b/arch/sparc/kernel/starfire.c
index 167fdfd9c837..b8cd57d9182b 100644
--- a/arch/sparc/kernel/starfire.c
+++ b/arch/sparc/kernel/starfire.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * starfire.c: Starfire/E10000 support.
  *
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index a87d0e47c168..d869d409fce6 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SS1000/SC2000 interrupt handling.
  *
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index af93b50e3ce4..ff30f03beb7c 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Sparc SS1000/SC2000 SMP support.
  *
  * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index aa84da0b2d30..c01767a0480e 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sun4m irq support
  *
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index 5547fcb1d72d..228a6527082d 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  sun4m SMP support.
  *
diff --git a/arch/sparc/kernel/sun4v_ivec.S b/arch/sparc/kernel/sun4v_ivec.S
index 34631995859a..6478ef4f6a15 100644
--- a/arch/sparc/kernel/sun4v_ivec.S
+++ b/arch/sparc/kernel/sun4v_ivec.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sun4v_ivec.S: Sun4v interrupt vector handling.
  *
  * Copyright (C) 2006 <davem@davemloft.net>
diff --git a/arch/sparc/kernel/sun4v_tlb_miss.S b/arch/sparc/kernel/sun4v_tlb_miss.S
index c19f352f46c7..7ac9f3367674 100644
--- a/arch/sparc/kernel/sun4v_tlb_miss.S
+++ b/arch/sparc/kernel/sun4v_tlb_miss.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sun4v_tlb_miss.S: Sun4v TLB miss handlers.
  *
  * Copyright (C) 2006 <davem@davemloft.net>
diff --git a/arch/sparc/kernel/sys32.S b/arch/sparc/kernel/sys32.S
index f834224208ed..7e7011a1e712 100644
--- a/arch/sparc/kernel/sys32.S
+++ b/arch/sparc/kernel/sys32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sys32.S: I-cache tricks for 32-bit compatibility layer simple
  *          conversions.
diff --git a/arch/sparc/kernel/sys_sparc32.c b/arch/sparc/kernel/sys_sparc32.c
index bca44f3e6b86..b4e1478413a1 100644
--- a/arch/sparc/kernel/sys_sparc32.c
+++ b/arch/sparc/kernel/sys_sparc32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sys_sparc32.c: Conversion between 32bit and 64bit native syscalls.
  *
  * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/kernel/sys_sparc_32.c b/arch/sparc/kernel/sys_sparc_32.c
index 7aecb239626d..990703b7cf4d 100644
--- a/arch/sparc/kernel/sys_sparc_32.c
+++ b/arch/sparc/kernel/sys_sparc_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* linux/arch/sparc/kernel/sys_sparc.c
  *
  * This file contains various random system calls that
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 043544d0cda3..55416db482ad 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* linux/arch/sparc64/kernel/sys_sparc.c
  *
  * This file contains various random system calls that
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index c4a1b5c40e4e..c5f9ec8c52eb 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	/* SunOS's execv() call only specifies the argv argument, the
 	 * environment settings are the same as the calling processes.
 	 */
diff --git a/arch/sparc/kernel/sysfs.c b/arch/sparc/kernel/sysfs.c
index 5fd352b759af..6d60d416f0dd 100644
--- a/arch/sparc/kernel/sysfs.c
+++ b/arch/sparc/kernel/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sysfs.c: Topology sysfs support code for sparc64.
  *
  * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h
index 2dab8236d490..5a01cfe19a0e 100644
--- a/arch/sparc/kernel/systbls.h
+++ b/arch/sparc/kernel/systbls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SYSTBLS_H
 #define _SYSTBLS_H
 
diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
index 5253e895b81b..731b25d572a1 100644
--- a/arch/sparc/kernel/systbls_32.S
+++ b/arch/sparc/kernel/systbls_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* systbls.S: System call entry point tables for OS compatibility.
  *            The native Linux system call table lives here also.
  *
diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
index 82339f6be0b2..293c1cb31262 100644
--- a/arch/sparc/kernel/systbls_64.S
+++ b/arch/sparc/kernel/systbls_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* systbls.S: System call entry point tables for OS compatibility.
  *            The native Linux system call table lives here also.
  *
diff --git a/arch/sparc/kernel/time_32.c b/arch/sparc/kernel/time_32.c
index 2ce2e7b2abbb..8a08830e4a65 100644
--- a/arch/sparc/kernel/time_32.c
+++ b/arch/sparc/kernel/time_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* linux/arch/sparc/kernel/time.c
  *
  * Copyright (C) 1995 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/time_64.c b/arch/sparc/kernel/time_64.c
index 564f0e46ffd4..3b397081047a 100644
--- a/arch/sparc/kernel/time_64.c
+++ b/arch/sparc/kernel/time_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* time.c: UltraSparc timer and TOD clock support.
  *
  * Copyright (C) 1997, 2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/trampoline_32.S b/arch/sparc/kernel/trampoline_32.S
index 3eed99fc6989..82fafeeb3a62 100644
--- a/arch/sparc/kernel/trampoline_32.S
+++ b/arch/sparc/kernel/trampoline_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * trampoline.S: SMP cpu boot-up trampoline code.
  *
diff --git a/arch/sparc/kernel/trampoline_64.S b/arch/sparc/kernel/trampoline_64.S
index 88ede1d53b4c..fe59122d257d 100644
--- a/arch/sparc/kernel/trampoline_64.S
+++ b/arch/sparc/kernel/trampoline_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * trampoline.S: Jump start slave processors on sparc64.
  *
diff --git a/arch/sparc/kernel/traps_32.c b/arch/sparc/kernel/traps_32.c
index 581cf35ee7e3..b1ed763e4787 100644
--- a/arch/sparc/kernel/traps_32.c
+++ b/arch/sparc/kernel/traps_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sparc/kernel/traps.c
  *
diff --git a/arch/sparc/kernel/tsb.S b/arch/sparc/kernel/tsb.S
index f74115364b1e..eaed39ce8938 100644
--- a/arch/sparc/kernel/tsb.S
+++ b/arch/sparc/kernel/tsb.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* tsb.S: Sparc64 TSB table handling.
  *
  * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/ttable_32.S b/arch/sparc/kernel/ttable_32.S
index 8a7a96ca676f..e79fd786fbbb 100644
--- a/arch/sparc/kernel/ttable_32.S
+++ b/arch/sparc/kernel/ttable_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* The Sparc trap table, bootloader gives us control at _start. */
         __HEAD
 
diff --git a/arch/sparc/kernel/ttable_64.S b/arch/sparc/kernel/ttable_64.S
index efe93ab4a9c0..18685fe69b91 100644
--- a/arch/sparc/kernel/ttable_64.S
+++ b/arch/sparc/kernel/ttable_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ttable.S: Sparc V9 Trap Table(s) with SpitFire/Cheetah/SUN4V extensions.
  *
  * Copyright (C) 1996, 2001, 2006 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/una_asm_32.S b/arch/sparc/kernel/una_asm_32.S
index 8f096e84a937..f8bf839289fb 100644
--- a/arch/sparc/kernel/una_asm_32.S
+++ b/arch/sparc/kernel/una_asm_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* una_asm.S: Kernel unaligned trap assembler helpers.
  *
  * Copyright (C) 1996,2005,2008 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/una_asm_64.S b/arch/sparc/kernel/una_asm_64.S
index 1c8d33228b2a..e256f395e9f6 100644
--- a/arch/sparc/kernel/una_asm_64.S
+++ b/arch/sparc/kernel/una_asm_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* una_asm.S: Kernel unaligned trap assembler helpers.
  *
  * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/unaligned_32.c b/arch/sparc/kernel/unaligned_32.c
index 8367dce5f41b..7642d7e4f0d9 100644
--- a/arch/sparc/kernel/unaligned_32.c
+++ b/arch/sparc/kernel/unaligned_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * unaligned.c: Unaligned load/store trap handling with special
  *              cases for the kernel to do them more quickly.
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index cda7fd367c4f..23db2efda570 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * unaligned.c: Unaligned load/store trap handling with special
  *              cases for the kernel to do them more quickly.
diff --git a/arch/sparc/kernel/urtt_fill.S b/arch/sparc/kernel/urtt_fill.S
index 364af3250646..44183aa59168 100644
--- a/arch/sparc/kernel/urtt_fill.S
+++ b/arch/sparc/kernel/urtt_fill.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/thread_info.h>
 #include <asm/trap_block.h>
 #include <asm/spitfire.h>
diff --git a/arch/sparc/kernel/utrap.S b/arch/sparc/kernel/utrap.S
index c731e8023d3e..7a2d9a9bea59 100644
--- a/arch/sparc/kernel/utrap.S
+++ b/arch/sparc/kernel/utrap.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.globl		utrap_trap
 	.type		utrap_trap,#function
 utrap_trap:		/* %g3=handler,%g4=level */
diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c
index da1ac3f22b24..1a0fa10cb6b7 100644
--- a/arch/sparc/kernel/vio.c
+++ b/arch/sparc/kernel/vio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* vio.c: Virtual I/O channel devices probing infrastructure.
  *
  *    Copyright (c) 2003-2005 IBM Corp.
diff --git a/arch/sparc/kernel/viohs.c b/arch/sparc/kernel/viohs.c
index dcd278f29573..c858f5f3ce2c 100644
--- a/arch/sparc/kernel/viohs.c
+++ b/arch/sparc/kernel/viohs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* viohs.c: LDOM Virtual I/O handshake helper layer.
  *
  * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/visemul.c b/arch/sparc/kernel/visemul.c
index 8f35eea2103a..64ed80ed6cc2 100644
--- a/arch/sparc/kernel/visemul.c
+++ b/arch/sparc/kernel/visemul.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* visemul.c: Emulation of VIS instructions.
  *
  * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index d78847d56a4b..5a2344574f39 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ld script for sparc32/sparc64 kernel */
 
 #include <asm-generic/vmlinux.lds.h>
diff --git a/arch/sparc/kernel/windows.c b/arch/sparc/kernel/windows.c
index 435a467b0595..69a6ba6e9293 100644
--- a/arch/sparc/kernel/windows.c
+++ b/arch/sparc/kernel/windows.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* windows.c: Routines to deal with register window management
  *            at the C-code level.
  *
diff --git a/arch/sparc/kernel/winfixup.S b/arch/sparc/kernel/winfixup.S
index 1ee173cc3c39..448accee090f 100644
--- a/arch/sparc/kernel/winfixup.S
+++ b/arch/sparc/kernel/winfixup.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* winfixup.S: Handle cases where user stack pointer is found to be bogus.
  *
  * Copyright (C) 1997, 2006 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/kernel/wof.S b/arch/sparc/kernel/wof.S
index 28a7bc69f82b..96a3a112423a 100644
--- a/arch/sparc/kernel/wof.S
+++ b/arch/sparc/kernel/wof.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * wof.S: Sparc window overflow handler.
  *
diff --git a/arch/sparc/kernel/wuf.S b/arch/sparc/kernel/wuf.S
index 2c21cc59683e..1a4ca490e9c2 100644
--- a/arch/sparc/kernel/wuf.S
+++ b/arch/sparc/kernel/wuf.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * wuf.S: Window underflow trap handler for the Sparc.
  *
diff --git a/arch/sparc/lib/GENbzero.S b/arch/sparc/lib/GENbzero.S
index 2fbf6297d57c..63d618857d49 100644
--- a/arch/sparc/lib/GENbzero.S
+++ b/arch/sparc/lib/GENbzero.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* GENbzero.S: Generic sparc64 memset/clear_user.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/GENcopy_from_user.S b/arch/sparc/lib/GENcopy_from_user.S
index 8aa16ef113f2..6891a5678ea3 100644
--- a/arch/sparc/lib/GENcopy_from_user.S
+++ b/arch/sparc/lib/GENcopy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* GENcopy_from_user.S: Generic sparc64 copy from userspace.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/GENcopy_to_user.S b/arch/sparc/lib/GENcopy_to_user.S
index 311c8fa5e98e..df75b532a934 100644
--- a/arch/sparc/lib/GENcopy_to_user.S
+++ b/arch/sparc/lib/GENcopy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* GENcopy_to_user.S: Generic sparc64 copy to userspace.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/GENmemcpy.S b/arch/sparc/lib/GENmemcpy.S
index 059ea24ad73d..114340a0d36e 100644
--- a/arch/sparc/lib/GENmemcpy.S
+++ b/arch/sparc/lib/GENmemcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* GENmemcpy.S: Generic sparc64 memcpy.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/GENpage.S b/arch/sparc/lib/GENpage.S
index 2ef9d05f21bc..c143c4d1de3f 100644
--- a/arch/sparc/lib/GENpage.S
+++ b/arch/sparc/lib/GENpage.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* GENpage.S: Generic clear and copy page.
  *
  * Copyright (C) 2007 (davem@davemloft.net)
diff --git a/arch/sparc/lib/GENpatch.S b/arch/sparc/lib/GENpatch.S
index 95e2f1f9e477..1ec1f02c8b7b 100644
--- a/arch/sparc/lib/GENpatch.S
+++ b/arch/sparc/lib/GENpatch.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* GENpatch.S: Patch Ultra-I routines with generic variant.
  *
  * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index a1a2d39ec96e..44829a8dc458 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for Sparc library files..
 #
 
diff --git a/arch/sparc/lib/NG2copy_from_user.S b/arch/sparc/lib/NG2copy_from_user.S
index 0d8a018118c2..e57bc514f538 100644
--- a/arch/sparc/lib/NG2copy_from_user.S
+++ b/arch/sparc/lib/NG2copy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG2copy_from_user.S: Niagara-2 optimized copy from userspace.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG2copy_to_user.S b/arch/sparc/lib/NG2copy_to_user.S
index a7a0ea0d8a0b..367c0bf01518 100644
--- a/arch/sparc/lib/NG2copy_to_user.S
+++ b/arch/sparc/lib/NG2copy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG2copy_to_user.S: Niagara-2 optimized copy to userspace.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG2memcpy.S b/arch/sparc/lib/NG2memcpy.S
index 64dcd6cdb606..bcb21b3a82f1 100644
--- a/arch/sparc/lib/NG2memcpy.S
+++ b/arch/sparc/lib/NG2memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG2memcpy.S: Niagara-2 optimized memcpy.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG2patch.S b/arch/sparc/lib/NG2patch.S
index 56ccc19adde8..72431b24491a 100644
--- a/arch/sparc/lib/NG2patch.S
+++ b/arch/sparc/lib/NG2patch.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG2patch.S: Patch Ultra-I routines with Niagara-2 variant.
  *
  * Copyright (C) 2007 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/NG4clear_page.S b/arch/sparc/lib/NG4clear_page.S
index e16c88204a42..97e2678d042a 100644
--- a/arch/sparc/lib/NG4clear_page.S
+++ b/arch/sparc/lib/NG4clear_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4copy_page.S: Niagara-4 optimized clear page.
  *
  * Copyright (C) 2012 (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG4copy_from_user.S b/arch/sparc/lib/NG4copy_from_user.S
index 5bb506bd61fa..0cac15a6db3c 100644
--- a/arch/sparc/lib/NG4copy_from_user.S
+++ b/arch/sparc/lib/NG4copy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4copy_from_user.S: Niagara-4 optimized copy from userspace.
  *
  * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG4copy_page.S b/arch/sparc/lib/NG4copy_page.S
index 28504e88c535..581062f8ba5f 100644
--- a/arch/sparc/lib/NG4copy_page.S
+++ b/arch/sparc/lib/NG4copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4copy_page.S: Niagara-4 optimized copy page.
  *
  * Copyright (C) 2012 (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG4copy_to_user.S b/arch/sparc/lib/NG4copy_to_user.S
index a82d4d45fc1c..c5c9abb3cb77 100644
--- a/arch/sparc/lib/NG4copy_to_user.S
+++ b/arch/sparc/lib/NG4copy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4copy_to_user.S: Niagara-4 optimized copy to userspace.
  *
  * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG4memcpy.S b/arch/sparc/lib/NG4memcpy.S
index b5dacd1d2078..7ad58ebe0d00 100644
--- a/arch/sparc/lib/NG4memcpy.S
+++ b/arch/sparc/lib/NG4memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4memcpy.S: Niagara-4 optimized memcpy.
  *
  * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG4memset.S b/arch/sparc/lib/NG4memset.S
index 7c0c81f18837..f81ee5419e2c 100644
--- a/arch/sparc/lib/NG4memset.S
+++ b/arch/sparc/lib/NG4memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4memset.S: Niagara-4 optimized memset/bzero.
  *
  * Copyright (C) 2012 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NG4patch.S b/arch/sparc/lib/NG4patch.S
index 3cc0f8cc95df..aa58ab39f9a6 100644
--- a/arch/sparc/lib/NG4patch.S
+++ b/arch/sparc/lib/NG4patch.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NG4patch.S: Patch Ultra-I routines with Niagara-4 variant.
  *
  * Copyright (C) 2012 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/NGbzero.S b/arch/sparc/lib/NGbzero.S
index 33053bdf3766..19327614d57d 100644
--- a/arch/sparc/lib/NGbzero.S
+++ b/arch/sparc/lib/NGbzero.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NGbzero.S: Niagara optimized memset/clear_user.
  *
  * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NGcopy_from_user.S b/arch/sparc/lib/NGcopy_from_user.S
index 2333b6f3e824..9abc49fcdbbe 100644
--- a/arch/sparc/lib/NGcopy_from_user.S
+++ b/arch/sparc/lib/NGcopy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NGcopy_from_user.S: Niagara optimized copy from userspace.
  *
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NGcopy_to_user.S b/arch/sparc/lib/NGcopy_to_user.S
index 07ba20bc4ea4..9cbe2f18e5cc 100644
--- a/arch/sparc/lib/NGcopy_to_user.S
+++ b/arch/sparc/lib/NGcopy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NGcopy_to_user.S: Niagara optimized copy to userspace.
  *
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NGmemcpy.S b/arch/sparc/lib/NGmemcpy.S
index cd654a719b27..8e4d22a6ba0b 100644
--- a/arch/sparc/lib/NGmemcpy.S
+++ b/arch/sparc/lib/NGmemcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NGmemcpy.S: Niagara optimized memcpy.
  *
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/NGpage.S b/arch/sparc/lib/NGpage.S
index 423d46e2258b..88fec7818065 100644
--- a/arch/sparc/lib/NGpage.S
+++ b/arch/sparc/lib/NGpage.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NGpage.S: Niagara optimize clear and copy page.
  *
  * Copyright (C) 2006 (davem@davemloft.net)
diff --git a/arch/sparc/lib/NGpatch.S b/arch/sparc/lib/NGpatch.S
index 62ccda7e7b38..e9f843f1063e 100644
--- a/arch/sparc/lib/NGpatch.S
+++ b/arch/sparc/lib/NGpatch.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* NGpatch.S: Patch Ultra-I routines with Niagara variant.
  *
  * Copyright (C) 2006 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/PeeCeeI.c b/arch/sparc/lib/PeeCeeI.c
index e6d183675990..cde4c9a51b2e 100644
--- a/arch/sparc/lib/PeeCeeI.c
+++ b/arch/sparc/lib/PeeCeeI.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PeeCeeI.c: The emerging standard...
  *
diff --git a/arch/sparc/lib/U1copy_from_user.S b/arch/sparc/lib/U1copy_from_user.S
index 9a6e68a9bf4a..bf08d1c78836 100644
--- a/arch/sparc/lib/U1copy_from_user.S
+++ b/arch/sparc/lib/U1copy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U1copy_from_user.S: UltraSparc-I/II/IIi/IIe optimized copy from userspace.
  *
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/U1copy_to_user.S b/arch/sparc/lib/U1copy_to_user.S
index d7b28491eddf..15169851e7ab 100644
--- a/arch/sparc/lib/U1copy_to_user.S
+++ b/arch/sparc/lib/U1copy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U1copy_to_user.S: UltraSparc-I/II/IIi/IIe optimized copy to userspace.
  *
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/U1memcpy.S b/arch/sparc/lib/U1memcpy.S
index 4f0d50b33a72..a6f4ee391897 100644
--- a/arch/sparc/lib/U1memcpy.S
+++ b/arch/sparc/lib/U1memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U1memcpy.S: UltraSPARC-I/II/IIi/IIe optimized memcpy.
  *
  * Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/U3copy_from_user.S b/arch/sparc/lib/U3copy_from_user.S
index db73010a1af8..9c891e9edc7b 100644
--- a/arch/sparc/lib/U3copy_from_user.S
+++ b/arch/sparc/lib/U3copy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U3copy_from_user.S: UltraSparc-III optimized copy from userspace.
  *
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/U3copy_to_user.S b/arch/sparc/lib/U3copy_to_user.S
index f48fb87fe9f2..da424608272c 100644
--- a/arch/sparc/lib/U3copy_to_user.S
+++ b/arch/sparc/lib/U3copy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U3copy_to_user.S: UltraSparc-III optimized copy to userspace.
  *
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/U3memcpy.S b/arch/sparc/lib/U3memcpy.S
index f9b42b3c63b0..9248d59c734c 100644
--- a/arch/sparc/lib/U3memcpy.S
+++ b/arch/sparc/lib/U3memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U3memcpy.S: UltraSparc-III optimized memcpy.
  *
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/U3patch.S b/arch/sparc/lib/U3patch.S
index 91cd6539b6e1..9a888088f3c9 100644
--- a/arch/sparc/lib/U3patch.S
+++ b/arch/sparc/lib/U3patch.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* U3patch.S: Patch Ultra-I routines with Ultra-III variant.
  *
  * Copyright (C) 2004 David S. Miller <davem@redhat.com>
diff --git a/arch/sparc/lib/VISsave.S b/arch/sparc/lib/VISsave.S
index 1c7b6a39b942..9c8eb2017d5b 100644
--- a/arch/sparc/lib/VISsave.S
+++ b/arch/sparc/lib/VISsave.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * VISsave.S: Code for saving FPU register state for
  *            VIS routines. One should not call this directly,
diff --git a/arch/sparc/lib/ashldi3.S b/arch/sparc/lib/ashldi3.S
index c8b1cf71bc73..2d72de88af90 100644
--- a/arch/sparc/lib/ashldi3.S
+++ b/arch/sparc/lib/ashldi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ashldi3.S:	GCC emits these for certain drivers playing
  *		with long longs.
diff --git a/arch/sparc/lib/ashrdi3.S b/arch/sparc/lib/ashrdi3.S
index 4310256e7964..05dfda9f5005 100644
--- a/arch/sparc/lib/ashrdi3.S
+++ b/arch/sparc/lib/ashrdi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ashrdi3.S:	The filesystem code creates all kinds of references to
  *              this little routine on the sparc with gcc.
diff --git a/arch/sparc/lib/atomic32.c b/arch/sparc/lib/atomic32.c
index 2c373329d5cb..5010df497387 100644
--- a/arch/sparc/lib/atomic32.c
+++ b/arch/sparc/lib/atomic32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * atomic32.c: 32-bit atomic_t implementation
  *
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index ce17c3094ba6..456b65a30ecf 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atomic.S: These things are too big to do inline.
  *
  * Copyright (C) 1999, 2007 2012 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/bitext.c b/arch/sparc/lib/bitext.c
index 8ec4e9c0251a..32a5c1d9459c 100644
--- a/arch/sparc/lib/bitext.c
+++ b/arch/sparc/lib/bitext.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bitext.c: kernel little helper (of bit shuffling variety).
  *
diff --git a/arch/sparc/lib/bitops.S b/arch/sparc/lib/bitops.S
index 7031bf1587cb..9d647f977618 100644
--- a/arch/sparc/lib/bitops.S
+++ b/arch/sparc/lib/bitops.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* bitops.S: Sparc64 atomic bit operations.
  *
  * Copyright (C) 2000, 2007 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/blockops.S b/arch/sparc/lib/blockops.S
index 1f2692d59d18..76ddd1ff6833 100644
--- a/arch/sparc/lib/blockops.S
+++ b/arch/sparc/lib/blockops.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * blockops.S: Common block zero optimized routines.
  *
diff --git a/arch/sparc/lib/bzero.S b/arch/sparc/lib/bzero.S
index 3bb1914c4fa4..87fec4cbe10c 100644
--- a/arch/sparc/lib/bzero.S
+++ b/arch/sparc/lib/bzero.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* bzero.S: Simple prefetching memset, bzero, and clear_user
  *          implementations.
  *
diff --git a/arch/sparc/lib/checksum_32.S b/arch/sparc/lib/checksum_32.S
index c9d8b6232111..6a5469c97246 100644
--- a/arch/sparc/lib/checksum_32.S
+++ b/arch/sparc/lib/checksum_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* checksum.S: Sparc optimized checksum code.
  *
  *  Copyright(C) 1995 Linus Torvalds
diff --git a/arch/sparc/lib/checksum_64.S b/arch/sparc/lib/checksum_64.S
index 6cfa521f444d..9700ef1730df 100644
--- a/arch/sparc/lib/checksum_64.S
+++ b/arch/sparc/lib/checksum_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* checksum.S: Sparc V9 optimized checksum code.
  *
  *  Copyright(C) 1995 Linus Torvalds
diff --git a/arch/sparc/lib/clear_page.S b/arch/sparc/lib/clear_page.S
index f30d6b78afbd..8a6c783a6301 100644
--- a/arch/sparc/lib/clear_page.S
+++ b/arch/sparc/lib/clear_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* clear_page.S: UltraSparc optimized clear page.
  *
  * Copyright (C) 1996, 1998, 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/cmpdi2.c b/arch/sparc/lib/cmpdi2.c
index 8c1306437ed1..333367fe7353 100644
--- a/arch/sparc/lib/cmpdi2.c
+++ b/arch/sparc/lib/cmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 
 #include "libgcc.h"
diff --git a/arch/sparc/lib/copy_in_user.S b/arch/sparc/lib/copy_in_user.S
index 1b73bb80aeb0..66e90bf528e2 100644
--- a/arch/sparc/lib/copy_in_user.S
+++ b/arch/sparc/lib/copy_in_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* copy_in_user.S: Copy from userspace to userspace.
  *
  * Copyright (C) 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/copy_page.S b/arch/sparc/lib/copy_page.S
index 7197b7250895..c088e871e8e3 100644
--- a/arch/sparc/lib/copy_page.S
+++ b/arch/sparc/lib/copy_page.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* clear_page.S: UltraSparc optimized copy page.
  *
  * Copyright (C) 1996, 1998, 1999, 2000, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/copy_user.S b/arch/sparc/lib/copy_user.S
index bc243ee807cc..dc72f2b970b7 100644
--- a/arch/sparc/lib/copy_user.S
+++ b/arch/sparc/lib/copy_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* copy_user.S: Sparc optimized copy_from_user and copy_to_user code.
  *
  *  Copyright(C) 1995 Linus Torvalds
diff --git a/arch/sparc/lib/csum_copy.S b/arch/sparc/lib/csum_copy.S
index b1051e77c49a..26c644ba3ecb 100644
--- a/arch/sparc/lib/csum_copy.S
+++ b/arch/sparc/lib/csum_copy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* csum_copy.S: Checksum+copy code for sparc64
  *
  * Copyright (C) 2005 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/lib/csum_copy_from_user.S b/arch/sparc/lib/csum_copy_from_user.S
index e0304e6a2242..d20b9594f0c7 100644
--- a/arch/sparc/lib/csum_copy_from_user.S
+++ b/arch/sparc/lib/csum_copy_from_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* csum_copy_from_user.S: Checksum+copy from userspace.
  *
  * Copyright (C) 2005 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/csum_copy_to_user.S b/arch/sparc/lib/csum_copy_to_user.S
index afd01acc587c..d71c0c81e8ab 100644
--- a/arch/sparc/lib/csum_copy_to_user.S
+++ b/arch/sparc/lib/csum_copy_to_user.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* csum_copy_to_user.S: Checksum+copy to userspace.
  *
  * Copyright (C) 2005 David S. Miller (davem@davemloft.net)
diff --git a/arch/sparc/lib/ffs.S b/arch/sparc/lib/ffs.S
index 23aab144d28e..5a11d864fa05 100644
--- a/arch/sparc/lib/ffs.S
+++ b/arch/sparc/lib/ffs.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/export.h>
 
diff --git a/arch/sparc/lib/hweight.S b/arch/sparc/lib/hweight.S
index d21cf20e5c1e..e5547b22cd18 100644
--- a/arch/sparc/lib/hweight.S
+++ b/arch/sparc/lib/hweight.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/export.h>
 
diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index c4d42a50ebc0..c9da9f139694 100644
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement the sparc iomap interfaces
  */
diff --git a/arch/sparc/lib/ipcsum.S b/arch/sparc/lib/ipcsum.S
index 5d61648b53dd..531d89c9d5d9 100644
--- a/arch/sparc/lib/ipcsum.S
+++ b/arch/sparc/lib/ipcsum.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/export.h>
 
diff --git a/arch/sparc/lib/libgcc.h b/arch/sparc/lib/libgcc.h
index b84fd797f3ea..79845c941b87 100644
--- a/arch/sparc/lib/libgcc.h
+++ b/arch/sparc/lib/libgcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_LIBGCC_H
 #define __ASM_LIBGCC_H
 
diff --git a/arch/sparc/lib/locks.S b/arch/sparc/lib/locks.S
index f38c4e59d078..9a1289a3fb28 100644
--- a/arch/sparc/lib/locks.S
+++ b/arch/sparc/lib/locks.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * locks.S: SMP low-level lock primitives on Sparc.
  *
diff --git a/arch/sparc/lib/lshrdi3.S b/arch/sparc/lib/lshrdi3.S
index c9b9373f8d81..509ca6682da8 100644
--- a/arch/sparc/lib/lshrdi3.S
+++ b/arch/sparc/lib/lshrdi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/export.h>
 
diff --git a/arch/sparc/lib/mcount.S b/arch/sparc/lib/mcount.S
index 194f383611c0..deba6fa0bc78 100644
--- a/arch/sparc/lib/mcount.S
+++ b/arch/sparc/lib/mcount.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2000 Anton Blanchard (anton@linuxcare.com)
  *
diff --git a/arch/sparc/lib/memcmp.S b/arch/sparc/lib/memcmp.S
index cee7f30dbb61..a18076ef5af1 100644
--- a/arch/sparc/lib/memcmp.S
+++ b/arch/sparc/lib/memcmp.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Sparc optimized memcmp code.
  *
  * Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/lib/memcpy.S b/arch/sparc/lib/memcpy.S
index 8913feaa7ac7..ee823d8c9215 100644
--- a/arch/sparc/lib/memcpy.S
+++ b/arch/sparc/lib/memcpy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* memcpy.S: Sparc optimized memcpy and memmove code
  * Hand optimized from GNU libc's memcpy and memmove
  * Copyright (C) 1991,1996 Free Software Foundation
diff --git a/arch/sparc/lib/memmove.S b/arch/sparc/lib/memmove.S
index 012cdb6ca467..3132b6316144 100644
--- a/arch/sparc/lib/memmove.S
+++ b/arch/sparc/lib/memmove.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* memmove.S: Simple memmove implementation.
  *
  * Copyright (C) 1997, 2004 David S. Miller (davem@redhat.com)
diff --git a/arch/sparc/lib/memscan_32.S b/arch/sparc/lib/memscan_32.S
index 51ce690c42a8..c4c2d5b3a2e9 100644
--- a/arch/sparc/lib/memscan_32.S
+++ b/arch/sparc/lib/memscan_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * memscan.S: Optimized memscan for the Sparc.
  *
diff --git a/arch/sparc/lib/memscan_64.S b/arch/sparc/lib/memscan_64.S
index 5efee1f4be36..36dd638905c3 100644
--- a/arch/sparc/lib/memscan_64.S
+++ b/arch/sparc/lib/memscan_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * memscan.S: Optimized memscan for Sparc64.
  *
diff --git a/arch/sparc/lib/memset.S b/arch/sparc/lib/memset.S
index e23338dbfc43..b89d42b29e34 100644
--- a/arch/sparc/lib/memset.S
+++ b/arch/sparc/lib/memset.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/arch/sparc/lib/memset.S: Sparc optimized memset, bzero and clear_user code
  * Copyright (C) 1991,1996 Free Software Foundation
  * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/lib/multi3.S b/arch/sparc/lib/multi3.S
index 703127aaf4a5..2f187b299345 100644
--- a/arch/sparc/lib/multi3.S
+++ b/arch/sparc/lib/multi3.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/export.h>
 
diff --git a/arch/sparc/lib/strlen.S b/arch/sparc/lib/strlen.S
index ca0e7077e871..dd111bbad5df 100644
--- a/arch/sparc/lib/strlen.S
+++ b/arch/sparc/lib/strlen.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* strlen.S: Sparc optimized strlen code
  * Hand optimized from GNU libc's strlen
  * Copyright (C) 1991,1996 Free Software Foundation
diff --git a/arch/sparc/lib/strncmp_32.S b/arch/sparc/lib/strncmp_32.S
index e3fe014813af..794733f036b6 100644
--- a/arch/sparc/lib/strncmp_32.S
+++ b/arch/sparc/lib/strncmp_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * strncmp.S: Hand optimized Sparc assembly of GCC output from GNU libc
  *            generic strncmp routine.
diff --git a/arch/sparc/lib/strncmp_64.S b/arch/sparc/lib/strncmp_64.S
index efb5f884330d..3d37d65f674c 100644
--- a/arch/sparc/lib/strncmp_64.S
+++ b/arch/sparc/lib/strncmp_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Sparc64 optimized strncmp code.
  *
diff --git a/arch/sparc/lib/ucmpdi2.c b/arch/sparc/lib/ucmpdi2.c
index 1e06ed500682..82c1cccb1264 100644
--- a/arch/sparc/lib/ucmpdi2.c
+++ b/arch/sparc/lib/ucmpdi2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include "libgcc.h"
 
diff --git a/arch/sparc/lib/xor.S b/arch/sparc/lib/xor.S
index 45a49cb618b5..f6af7c7ee6fc 100644
--- a/arch/sparc/lib/xor.S
+++ b/arch/sparc/lib/xor.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/sparc64/lib/xor.S
  *
diff --git a/arch/sparc/math-emu/math_32.c b/arch/sparc/math-emu/math_32.c
index 4d7e0fff054f..72e560ef4a09 100644
--- a/arch/sparc/math-emu/math_32.c
+++ b/arch/sparc/math-emu/math_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sparc/math-emu/math.c
  *
diff --git a/arch/sparc/math-emu/math_64.c b/arch/sparc/math-emu/math_64.c
index 9647051853d3..1379dee26a65 100644
--- a/arch/sparc/math-emu/math_64.c
+++ b/arch/sparc/math-emu/math_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sparc64/math-emu/math.c
  *
diff --git a/arch/sparc/math-emu/sfp-util_32.h b/arch/sparc/math-emu/sfp-util_32.h
index bb587d5f3d9d..b57375ff28ee 100644
--- a/arch/sparc/math-emu/sfp-util_32.h
+++ b/arch/sparc/math-emu/sfp-util_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/types.h>
diff --git a/arch/sparc/math-emu/sfp-util_64.h b/arch/sparc/math-emu/sfp-util_64.h
index 51320a861cc2..8fdb55aae9c8 100644
--- a/arch/sparc/math-emu/sfp-util_64.h
+++ b/arch/sparc/math-emu/sfp-util_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/sparc64/math-emu/sfp-util.h
  *
diff --git a/arch/sparc/mm/Makefile b/arch/sparc/mm/Makefile
index 30c3eccfdf5a..d39075b1e3b7 100644
--- a/arch/sparc/mm/Makefile
+++ b/arch/sparc/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the linux Sparc-specific parts of the memory manager.
 #
 
diff --git a/arch/sparc/mm/extable.c b/arch/sparc/mm/extable.c
index 2422511dc8c5..241b40641873 100644
--- a/arch/sparc/mm/extable.c
+++ b/arch/sparc/mm/extable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/sparc/mm/extable.c
  */
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index 4714061d6cd3..be3136f142a9 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fault.c:  Page fault handlers for the Sparc.
  *
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index b84c4dd14954..815c03d7a765 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/sparc64/mm/fault.c: Page fault handlers for the 64-bit Sparc.
  *
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index d809099ffd47..5335ba3c850e 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Lockless get_user_pages_fast for sparc, cribbed from powerpc
  *
diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
index a454ec5ff07a..86bc2a58d26c 100644
--- a/arch/sparc/mm/highmem.c
+++ b/arch/sparc/mm/highmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  highmem.c: virtual kernel memory mappings for high memory
  *
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index bcd8cdbc377f..5078b7f68890 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SPARC64 Huge TLB page support.
  *
diff --git a/arch/sparc/mm/hypersparc.S b/arch/sparc/mm/hypersparc.S
index 969f96450f69..66885a8dc50a 100644
--- a/arch/sparc/mm/hypersparc.S
+++ b/arch/sparc/mm/hypersparc.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hypersparc.S: High speed Hypersparc mmu/cache operations.
  *
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index 3bd0d513bddb..95fe4f081ba3 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/sparc/mm/init.c
  *
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index b2ba410b26f4..61bdc1270d19 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/sparc64/mm/init.c
  *
diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h
index a4c09603b05c..d920a75b5f14 100644
--- a/arch/sparc/mm/init_64.h
+++ b/arch/sparc/mm/init_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPARC64_MM_INIT_H
 #define _SPARC64_MM_INIT_H
 
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index 338fb71535de..c8cb27d3ea75 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * io-unit.c:  IO-UNIT specific routines for memory management.
  *
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 491511d37e37..2c5f8a648f8c 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * iommu.c:  IOMMU specific routines for memory management.
  *
diff --git a/arch/sparc/mm/leon_mm.c b/arch/sparc/mm/leon_mm.c
index 3b17b6f7895a..ec61ff1f96b7 100644
--- a/arch/sparc/mm/leon_mm.c
+++ b/arch/sparc/mm/leon_mm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/sparc/mm/leon_m.c
  *
diff --git a/arch/sparc/mm/mm_32.h b/arch/sparc/mm/mm_32.h
index a6c27ca9a721..0d0b06e952a5 100644
--- a/arch/sparc/mm/mm_32.h
+++ b/arch/sparc/mm/mm_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* fault_32.c - visible as they are called from assembler */
 asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc,
                             unsigned long address);
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 8e76ebba2986..1d70c3f6d986 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * srmmu.c:  SRMMU specific routines for memory management.
  *
diff --git a/arch/sparc/mm/srmmu_access.S b/arch/sparc/mm/srmmu_access.S
index d0a67b2c2383..d8d2e644a5ca 100644
--- a/arch/sparc/mm/srmmu_access.S
+++ b/arch/sparc/mm/srmmu_access.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Assembler variants of srmmu access functions.
  * Implemented in assembler to allow run-time patching.
  * LEON uses a different ASI for MMUREGS than SUN.
diff --git a/arch/sparc/mm/swift.S b/arch/sparc/mm/swift.S
index 5d2b88d39424..f414bfd8d899 100644
--- a/arch/sparc/mm/swift.S
+++ b/arch/sparc/mm/swift.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * swift.S: MicroSparc-II mmu/cache operations.
  *
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index ee8066c3d96c..4ae86bc0d35c 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* arch/sparc64/mm/tlb.c
  *
  * Copyright (C) 2004 David S. Miller <davem@redhat.com>
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index 0d4b998c7d7b..75a04c1a2383 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* arch/sparc64/mm/tsb.c
  *
  * Copyright (C) 2006, 2008 David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/mm/tsunami.S b/arch/sparc/mm/tsunami.S
index bf10a345fa8b..62b742df65dc 100644
--- a/arch/sparc/mm/tsunami.S
+++ b/arch/sparc/mm/tsunami.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * tsunami.S: High speed MicroSparc-I mmu/cache operations.
  *
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S
index fcf4d27a38fb..d245f89d1395 100644
--- a/arch/sparc/mm/ultra.S
+++ b/arch/sparc/mm/ultra.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ultra.S: Don't expand these all over the place...
  *
diff --git a/arch/sparc/mm/viking.S b/arch/sparc/mm/viking.S
index 852257fcc82b..adaef6e7b8cf 100644
--- a/arch/sparc/mm/viking.S
+++ b/arch/sparc/mm/viking.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * viking.S: High speed Viking cache/mmu operations
  *
diff --git a/arch/sparc/net/bpf_jit_32.h b/arch/sparc/net/bpf_jit_32.h
index d5c069bff5f9..cfd6a8be0eb4 100644
--- a/arch/sparc/net/bpf_jit_32.h
+++ b/arch/sparc/net/bpf_jit_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BPF_JIT_H
 #define _BPF_JIT_H
 
diff --git a/arch/sparc/net/bpf_jit_64.h b/arch/sparc/net/bpf_jit_64.h
index 74abd45796ea..428f7fd19175 100644
--- a/arch/sparc/net/bpf_jit_64.h
+++ b/arch/sparc/net/bpf_jit_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BPF_JIT_H
 #define _BPF_JIT_H
 
diff --git a/arch/sparc/net/bpf_jit_asm_32.S b/arch/sparc/net/bpf_jit_asm_32.S
index dcc402f5738a..a2e28e0464a3 100644
--- a/arch/sparc/net/bpf_jit_asm_32.S
+++ b/arch/sparc/net/bpf_jit_asm_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/ptrace.h>
 
 #include "bpf_jit_32.h"
diff --git a/arch/sparc/net/bpf_jit_asm_64.S b/arch/sparc/net/bpf_jit_asm_64.S
index 3b3f14655f81..7177867052a1 100644
--- a/arch/sparc/net/bpf_jit_asm_64.S
+++ b/arch/sparc/net/bpf_jit_asm_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/ptrace.h>
 
 #include "bpf_jit_64.h"
diff --git a/arch/sparc/net/bpf_jit_comp_32.c b/arch/sparc/net/bpf_jit_comp_32.c
index d193748548e2..09e318eb34ee 100644
--- a/arch/sparc/net/bpf_jit_comp_32.c
+++ b/arch/sparc/net/bpf_jit_comp_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/moduleloader.h>
 #include <linux/workqueue.h>
 #include <linux/netdevice.h>
diff --git a/arch/sparc/net/bpf_jit_comp_64.c b/arch/sparc/net/bpf_jit_comp_64.c
index c340af7b1371..5765e7e711f7 100644
--- a/arch/sparc/net/bpf_jit_comp_64.c
+++ b/arch/sparc/net/bpf_jit_comp_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/moduleloader.h>
 #include <linux/workqueue.h>
 #include <linux/netdevice.h>
diff --git a/arch/sparc/power/hibernate.c b/arch/sparc/power/hibernate.c
index df707a8ad311..47b06f4af1f9 100644
--- a/arch/sparc/power/hibernate.c
+++ b/arch/sparc/power/hibernate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * hibernate.c:  Hibernaton support specific for sparc64.
  *
diff --git a/arch/sparc/power/hibernate_asm.S b/arch/sparc/power/hibernate_asm.S
index d7d9017dcb15..8cfaf5b6a32e 100644
--- a/arch/sparc/power/hibernate_asm.S
+++ b/arch/sparc/power/hibernate_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hibernate_asm.S:  Hibernaton support specific for sparc64.
  *
diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile
index 020300b18c0b..397b79af77f7 100644
--- a/arch/sparc/prom/Makefile
+++ b/arch/sparc/prom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Sun Boot PROM interface library under
 # Linux.
 #
diff --git a/arch/sparc/prom/bootstr_32.c b/arch/sparc/prom/bootstr_32.c
index d2b49d2365e7..e3b731ff00f0 100644
--- a/arch/sparc/prom/bootstr_32.c
+++ b/arch/sparc/prom/bootstr_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bootstr.c:  Boot string/argument acquisition from the PROM.
  *
diff --git a/arch/sparc/prom/bootstr_64.c b/arch/sparc/prom/bootstr_64.c
index 7149e77714a4..f1cc34d99eec 100644
--- a/arch/sparc/prom/bootstr_64.c
+++ b/arch/sparc/prom/bootstr_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bootstr.c:  Boot string/argument acquisition from the PROM.
  *
diff --git a/arch/sparc/prom/cif.S b/arch/sparc/prom/cif.S
index 8050f381f518..dd06bb1fb90c 100644
--- a/arch/sparc/prom/cif.S
+++ b/arch/sparc/prom/cif.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* cif.S: PROM entry/exit assembler trampolines.
  *
  * Copyright (C) 1996, 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c
index 1cfb50f4cb9c..6404e5bbb7e6 100644
--- a/arch/sparc/prom/console_32.c
+++ b/arch/sparc/prom/console_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * console.c: Routines that deal with sending and receiving IO
  *            to/from the current console device using the PROM.
diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c
index f95edcc54fd5..86dace787ae6 100644
--- a/arch/sparc/prom/console_64.c
+++ b/arch/sparc/prom/console_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* console.c: Routines that deal with sending and receiving IO
  *            to/from the current console device using the PROM.
  *
diff --git a/arch/sparc/prom/init_32.c b/arch/sparc/prom/init_32.c
index 9ac30c2b7dba..d20470166cb1 100644
--- a/arch/sparc/prom/init_32.c
+++ b/arch/sparc/prom/init_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * init.c:  Initialize internal variables used by the PROM
  *          library functions.
diff --git a/arch/sparc/prom/init_64.c b/arch/sparc/prom/init_64.c
index 110b0d78b864..103aa9104318 100644
--- a/arch/sparc/prom/init_64.c
+++ b/arch/sparc/prom/init_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * init.c:  Initialize internal variables used by the PROM
  *          library functions.
diff --git a/arch/sparc/prom/memory.c b/arch/sparc/prom/memory.c
index 3f263a64857d..269d6ab5ef5e 100644
--- a/arch/sparc/prom/memory.c
+++ b/arch/sparc/prom/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* memory.c: Prom routine for acquiring various bits of information
  *           about RAM on the machine, both virtual and physical.
  *
diff --git a/arch/sparc/prom/misc_32.c b/arch/sparc/prom/misc_32.c
index 8dc0b6b271e8..625750924860 100644
--- a/arch/sparc/prom/misc_32.c
+++ b/arch/sparc/prom/misc_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c:  Miscellaneous prom functions that don't belong
  *          anywhere else.
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index 53a696d3eb3b..aed94cd4a1e7 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c:  Miscellaneous prom functions that don't belong
  *          anywhere else.
diff --git a/arch/sparc/prom/mp.c b/arch/sparc/prom/mp.c
index 0da8256cf76f..67cf0e957e38 100644
--- a/arch/sparc/prom/mp.c
+++ b/arch/sparc/prom/mp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mp.c:  OpenBoot Prom Multiprocessor support routines.  Don't call
  *        these on a UP or else you will halt and catch fire. ;)
diff --git a/arch/sparc/prom/p1275.c b/arch/sparc/prom/p1275.c
index 545d8bb79b65..889aa602f8d8 100644
--- a/arch/sparc/prom/p1275.c
+++ b/arch/sparc/prom/p1275.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * p1275.c: Sun IEEE 1275 PROM low level interface routines
  *
diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c
index d9682f06b3b0..dcee3dfa6de9 100644
--- a/arch/sparc/prom/printf.c
+++ b/arch/sparc/prom/printf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * printf.c:  Internal prom library printf facility.
  *
diff --git a/arch/sparc/prom/ranges.c b/arch/sparc/prom/ranges.c
index 6d8dc2aa94ce..20cb828bc5f4 100644
--- a/arch/sparc/prom/ranges.c
+++ b/arch/sparc/prom/ranges.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ranges.c: Handle ranges in newer proms for obio/sbus.
  *
diff --git a/arch/sparc/prom/tree_32.c b/arch/sparc/prom/tree_32.c
index f30e8d038f01..0fed89375b74 100644
--- a/arch/sparc/prom/tree_32.c
+++ b/arch/sparc/prom/tree_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * tree.c: Basic device tree traversal/scanning for the Linux
  *         prom library.
diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c
index bd1b2a3ac34e..989e7992d629 100644
--- a/arch/sparc/prom/tree_64.c
+++ b/arch/sparc/prom/tree_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * tree.c: Basic device tree traversal/scanning for the Linux
  *         prom library.
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 4583c0320059..02f269cfa538 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
 
diff --git a/arch/tile/Kconfig.debug b/arch/tile/Kconfig.debug
index 19734d3ab1e8..9f665d1a805f 100644
--- a/arch/tile/Kconfig.debug
+++ b/arch/tile/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/tile/Makefile b/arch/tile/Makefile
index 4dc380a519d4..8fa0befba32b 100644
--- a/arch/tile/Makefile
+++ b/arch/tile/Makefile
@@ -51,6 +51,8 @@ else
 BITS := 32
 endif
 
+CHECKFLAGS	+= -m$(BITS)
+
 head-y		:= arch/tile/kernel/head_$(BITS).o
 
 libs-y		+= arch/tile/lib/
diff --git a/arch/tile/configs/tilegx_defconfig b/arch/tile/configs/tilegx_defconfig
index 0d925fa0f0c1..9f94435cc44f 100644
--- a/arch/tile/configs/tilegx_defconfig
+++ b/arch/tile/configs/tilegx_defconfig
@@ -409,5 +409,4 @@ CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
diff --git a/arch/tile/configs/tilepro_defconfig b/arch/tile/configs/tilepro_defconfig
index 149d8e8eacb8..1c5bd4f8ffca 100644
--- a/arch/tile/configs/tilepro_defconfig
+++ b/arch/tile/configs/tilepro_defconfig
@@ -189,7 +189,6 @@ CONFIG_IP_NF_MATCH_ECN=m
 CONFIG_IP_NF_MATCH_TTL=m
 CONFIG_IP_NF_FILTER=y
 CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_ULOG=m
 CONFIG_IP_NF_MANGLE=m
 CONFIG_IP_NF_TARGET_ECN=m
 CONFIG_IP_NF_TARGET_TTL=m
@@ -521,7 +520,6 @@ CONFIG_CRYPTO_SEED=m
 CONFIG_CRYPTO_SERPENT=m
 CONFIG_CRYPTO_TEA=m
 CONFIG_CRYPTO_TWOFISH=m
-CONFIG_CRYPTO_ZLIB=m
 CONFIG_CRYPTO_LZO=m
 CONFIG_CRC_CCITT=m
 CONFIG_CRC7=m
diff --git a/arch/tile/gxio/Kconfig b/arch/tile/gxio/Kconfig
index d4e10d58071b..903c8646bdd7 100644
--- a/arch/tile/gxio/Kconfig
+++ b/arch/tile/gxio/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Support direct access to TILE-Gx hardware from user space, via the
 # gxio library, or from kernel space, via kernel IORPC support.
 config TILE_GXIO
diff --git a/arch/tile/gxio/Makefile b/arch/tile/gxio/Makefile
index 26ae2c727467..fcc903c4cf87 100644
--- a/arch/tile/gxio/Makefile
+++ b/arch/tile/gxio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Tile-Gx device access support.
 #
diff --git a/arch/tile/gxio/dma_queue.c b/arch/tile/gxio/dma_queue.c
index baa60357f8ba..b7ba577d82ca 100644
--- a/arch/tile/gxio/dma_queue.c
+++ b/arch/tile/gxio/dma_queue.c
@@ -163,14 +163,14 @@ int __gxio_dma_queue_is_complete(__gxio_dma_queue_t *dma_queue,
 				 int64_t completion_slot, int update)
 {
 	if (update) {
-		if (ACCESS_ONCE(dma_queue->hw_complete_count) >
+		if (READ_ONCE(dma_queue->hw_complete_count) >
 		    completion_slot)
 			return 1;
 
 		__gxio_dma_queue_update_credits(dma_queue);
 	}
 
-	return ACCESS_ONCE(dma_queue->hw_complete_count) > completion_slot;
+	return READ_ONCE(dma_queue->hw_complete_count) > completion_slot;
 }
 
 EXPORT_SYMBOL_GPL(__gxio_dma_queue_is_complete);
diff --git a/arch/tile/include/asm/div64.h b/arch/tile/include/asm/div64.h
index 9f765cdf09a5..a0a798344d5f 100644
--- a/arch/tile/include/asm/div64.h
+++ b/arch/tile/include/asm/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_TILE_DIV64_H
 #define _ASM_TILE_DIV64_H
 
diff --git a/arch/tile/include/asm/irq_work.h b/arch/tile/include/asm/irq_work.h
index 48af33a61a2c..78d3b6a7b27a 100644
--- a/arch/tile/include/asm/irq_work.h
+++ b/arch/tile/include/asm/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IRQ_WORK_H
 #define __ASM_IRQ_WORK_H
 
diff --git a/arch/tile/include/asm/spinlock_32.h b/arch/tile/include/asm/spinlock_32.h
index cba8ba9b8da6..fb5313d77315 100644
--- a/arch/tile/include/asm/spinlock_32.h
+++ b/arch/tile/include/asm/spinlock_32.h
@@ -51,9 +51,6 @@ static inline int arch_spin_is_locked(arch_spinlock_t *lock)
 
 void arch_spin_lock(arch_spinlock_t *lock);
 
-/* We cannot take an interrupt after getting a ticket, so don't enable them. */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 int arch_spin_trylock(arch_spinlock_t *lock);
 
 static inline void arch_spin_unlock(arch_spinlock_t *lock)
@@ -80,22 +77,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
 #define _RD_COUNT_WIDTH 8
 
 /**
- * arch_read_can_lock() - would read_trylock() succeed?
- */
-static inline int arch_read_can_lock(arch_rwlock_t *rwlock)
-{
-	return (rwlock->lock << _RD_COUNT_WIDTH) == 0;
-}
-
-/**
- * arch_write_can_lock() - would write_trylock() succeed?
- */
-static inline int arch_write_can_lock(arch_rwlock_t *rwlock)
-{
-	return rwlock->lock == 0;
-}
-
-/**
  * arch_read_lock() - acquire a read lock.
  */
 void arch_read_lock(arch_rwlock_t *rwlock);
@@ -125,7 +106,4 @@ void arch_read_unlock(arch_rwlock_t *rwlock);
  */
 void arch_write_unlock(arch_rwlock_t *rwlock);
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ASM_TILE_SPINLOCK_32_H */
diff --git a/arch/tile/include/asm/spinlock_64.h b/arch/tile/include/asm/spinlock_64.h
index 9a2c2d605752..5b616ef642a8 100644
--- a/arch/tile/include/asm/spinlock_64.h
+++ b/arch/tile/include/asm/spinlock_64.h
@@ -75,9 +75,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 /* Try to get the lock, and return whether we succeeded. */
 int arch_spin_trylock(arch_spinlock_t *lock);
 
-/* We cannot take an interrupt after getting a ticket, so don't enable them. */
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 /*
  * Read-write spinlocks, allowing multiple readers
  * but only one writer.
@@ -93,24 +90,6 @@ static inline int arch_write_val_locked(int val)
 	return val < 0;  /* Optimize "val & __WRITE_LOCK_BIT". */
 }
 
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-static inline int arch_read_can_lock(arch_rwlock_t *rw)
-{
-	return !arch_write_val_locked(rw->lock);
-}
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-static inline int arch_write_can_lock(arch_rwlock_t *rw)
-{
-	return rw->lock == 0;
-}
-
 extern void __read_lock_failed(arch_rwlock_t *rw);
 
 static inline void arch_read_lock(arch_rwlock_t *rw)
@@ -156,7 +135,4 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 	return 0;
 }
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
 #endif /* _ASM_TILE_SPINLOCK_64_H */
diff --git a/arch/tile/include/asm/word-at-a-time.h b/arch/tile/include/asm/word-at-a-time.h
index b66a693c2c34..2f2515867760 100644
--- a/arch/tile/include/asm/word-at-a-time.h
+++ b/arch/tile/include/asm/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_WORD_AT_A_TIME_H
 #define _ASM_WORD_AT_A_TIME_H
 
diff --git a/arch/tile/include/gxio/dma_queue.h b/arch/tile/include/gxio/dma_queue.h
index b9e45e37649e..c8fd47edba30 100644
--- a/arch/tile/include/gxio/dma_queue.h
+++ b/arch/tile/include/gxio/dma_queue.h
@@ -121,7 +121,7 @@ static inline int64_t __gxio_dma_queue_reserve(__gxio_dma_queue_t *dma_queue,
 		 * if the result is LESS than "hw_complete_count".
 		 */
 		uint64_t complete;
-		complete = ACCESS_ONCE(dma_queue->hw_complete_count);
+		complete = READ_ONCE(dma_queue->hw_complete_count);
 		slot |= (complete & 0xffffffffff000000);
 		if (slot < complete)
 			slot += 0x1000000;
diff --git a/arch/tile/include/uapi/arch/abi.h b/arch/tile/include/uapi/arch/abi.h
index 328e62260272..df161a484730 100644
--- a/arch/tile/include/uapi/arch/abi.h
+++ b/arch/tile/include/uapi/arch/abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/chip.h b/arch/tile/include/uapi/arch/chip.h
index 4c91f90b9369..7f55c6856c89 100644
--- a/arch/tile/include/uapi/arch/chip.h
+++ b/arch/tile/include/uapi/arch/chip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/chip_tilegx.h b/arch/tile/include/uapi/arch/chip_tilegx.h
index ea8e4f2c9483..c2a71a43b21c 100644
--- a/arch/tile/include/uapi/arch/chip_tilegx.h
+++ b/arch/tile/include/uapi/arch/chip_tilegx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/chip_tilepro.h b/arch/tile/include/uapi/arch/chip_tilepro.h
index 70017699a74c..a8a3ed144dfe 100644
--- a/arch/tile/include/uapi/arch/chip_tilepro.h
+++ b/arch/tile/include/uapi/arch/chip_tilepro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/icache.h b/arch/tile/include/uapi/arch/icache.h
index 762eafa8a11e..ff85a5d77f16 100644
--- a/arch/tile/include/uapi/arch/icache.h
+++ b/arch/tile/include/uapi/arch/icache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/interrupts.h b/arch/tile/include/uapi/arch/interrupts.h
index 20f8f07d2de9..c288b5d82b4d 100644
--- a/arch/tile/include/uapi/arch/interrupts.h
+++ b/arch/tile/include/uapi/arch/interrupts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/interrupts_32.h b/arch/tile/include/uapi/arch/interrupts_32.h
index 2efe3f68b2d6..a748752cec16 100644
--- a/arch/tile/include/uapi/arch/interrupts_32.h
+++ b/arch/tile/include/uapi/arch/interrupts_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/interrupts_64.h b/arch/tile/include/uapi/arch/interrupts_64.h
index 13c9f9182348..142eaff3c244 100644
--- a/arch/tile/include/uapi/arch/interrupts_64.h
+++ b/arch/tile/include/uapi/arch/interrupts_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/intreg.h b/arch/tile/include/uapi/arch/intreg.h
index 1cf2fbf74306..5387fb645bb8 100644
--- a/arch/tile/include/uapi/arch/intreg.h
+++ b/arch/tile/include/uapi/arch/intreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2017 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/opcode.h b/arch/tile/include/uapi/arch/opcode.h
index 92d15229ecec..a9ce5961a028 100644
--- a/arch/tile/include/uapi/arch/opcode.h
+++ b/arch/tile/include/uapi/arch/opcode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/opcode_tilegx.h b/arch/tile/include/uapi/arch/opcode_tilegx.h
index 9e46eaa847d4..948ea544567f 100644
--- a/arch/tile/include/uapi/arch/opcode_tilegx.h
+++ b/arch/tile/include/uapi/arch/opcode_tilegx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* TILE-Gx opcode information.
  *
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
diff --git a/arch/tile/include/uapi/arch/opcode_tilepro.h b/arch/tile/include/uapi/arch/opcode_tilepro.h
index 4451cff1a861..0d633688de63 100644
--- a/arch/tile/include/uapi/arch/opcode_tilepro.h
+++ b/arch/tile/include/uapi/arch/opcode_tilepro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* TILEPro opcode information.
  *
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
diff --git a/arch/tile/include/uapi/arch/sim.h b/arch/tile/include/uapi/arch/sim.h
index e54b7b0527f3..c4183dcd2ea7 100644
--- a/arch/tile/include/uapi/arch/sim.h
+++ b/arch/tile/include/uapi/arch/sim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/sim_def.h b/arch/tile/include/uapi/arch/sim_def.h
index 1c069537ae41..f74f9943770d 100644
--- a/arch/tile/include/uapi/arch/sim_def.h
+++ b/arch/tile/include/uapi/arch/sim_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/spr_def.h b/arch/tile/include/uapi/arch/spr_def.h
index c250c5adb1a6..743428615cda 100644
--- a/arch/tile/include/uapi/arch/spr_def.h
+++ b/arch/tile/include/uapi/arch/spr_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/spr_def_32.h b/arch/tile/include/uapi/arch/spr_def_32.h
index 78daa3146d25..64122d6160e1 100644
--- a/arch/tile/include/uapi/arch/spr_def_32.h
+++ b/arch/tile/include/uapi/arch/spr_def_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/arch/spr_def_64.h b/arch/tile/include/uapi/arch/spr_def_64.h
index 67a6c1751e3b..d183cbb31aa7 100644
--- a/arch/tile/include/uapi/arch/spr_def_64.h
+++ b/arch/tile/include/uapi/arch/spr_def_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/auxvec.h b/arch/tile/include/uapi/asm/auxvec.h
index f497123ed980..922383ce8f4f 100644
--- a/arch/tile/include/uapi/asm/auxvec.h
+++ b/arch/tile/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/bitsperlong.h b/arch/tile/include/uapi/asm/bitsperlong.h
index 58c771f2af2f..57cca78c0fbb 100644
--- a/arch/tile/include/uapi/asm/bitsperlong.h
+++ b/arch/tile/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/byteorder.h b/arch/tile/include/uapi/asm/byteorder.h
index 6b8fa2e1cf6e..d508e61c1e56 100644
--- a/arch/tile/include/uapi/asm/byteorder.h
+++ b/arch/tile/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/cachectl.h b/arch/tile/include/uapi/asm/cachectl.h
index 572ddcad2090..ed8bac28a1b9 100644
--- a/arch/tile/include/uapi/asm/cachectl.h
+++ b/arch/tile/include/uapi/asm/cachectl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2011 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/hardwall.h b/arch/tile/include/uapi/asm/hardwall.h
index c2169d4f4010..f02e9132ae71 100644
--- a/arch/tile/include/uapi/asm/hardwall.h
+++ b/arch/tile/include/uapi/asm/hardwall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/kvm_para.h b/arch/tile/include/uapi/asm/kvm_para.h
index 14fab8f0b957..baacc4996d18 100644
--- a/arch/tile/include/uapi/asm/kvm_para.h
+++ b/arch/tile/include/uapi/asm/kvm_para.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/kvm_para.h>
diff --git a/arch/tile/include/uapi/asm/mman.h b/arch/tile/include/uapi/asm/mman.h
index 63ee13faf17d..9b7add95926b 100644
--- a/arch/tile/include/uapi/asm/mman.h
+++ b/arch/tile/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/ptrace.h b/arch/tile/include/uapi/asm/ptrace.h
index d03b829857e8..667ed742f4dd 100644
--- a/arch/tile/include/uapi/asm/ptrace.h
+++ b/arch/tile/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/setup.h b/arch/tile/include/uapi/asm/setup.h
index e6f7da265ac3..6d1dfdddad6c 100644
--- a/arch/tile/include/uapi/asm/setup.h
+++ b/arch/tile/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/sigcontext.h b/arch/tile/include/uapi/asm/sigcontext.h
index 39ff5d1a232d..4003d5cc9202 100644
--- a/arch/tile/include/uapi/asm/sigcontext.h
+++ b/arch/tile/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/siginfo.h b/arch/tile/include/uapi/asm/siginfo.h
index e83f931aa1f0..f234d24fff55 100644
--- a/arch/tile/include/uapi/asm/siginfo.h
+++ b/arch/tile/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/signal.h b/arch/tile/include/uapi/asm/signal.h
index ef0d32d84a4c..7b3c814e00f0 100644
--- a/arch/tile/include/uapi/asm/signal.h
+++ b/arch/tile/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/stat.h b/arch/tile/include/uapi/asm/stat.h
index c0db34d56be3..ea03de7d67aa 100644
--- a/arch/tile/include/uapi/asm/stat.h
+++ b/arch/tile/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
 #define __ARCH_WANT_STAT64	/* Used for compat_sys_stat64() etc. */
 #endif
diff --git a/arch/tile/include/uapi/asm/swab.h b/arch/tile/include/uapi/asm/swab.h
index 7c37b38f6c8d..36952353a31d 100644
--- a/arch/tile/include/uapi/asm/swab.h
+++ b/arch/tile/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/include/uapi/asm/unistd.h b/arch/tile/include/uapi/asm/unistd.h
index 24e9187e85a8..1a169ec92ef8 100644
--- a/arch/tile/include/uapi/asm/unistd.h
+++ b/arch/tile/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/arch/tile/kernel/Makefile b/arch/tile/kernel/Makefile
index 09936d0bcb42..3e43d78731a8 100644
--- a/arch/tile/kernel/Makefile
+++ b/arch/tile/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/TILE kernel.
 #
diff --git a/arch/tile/kernel/hvglue.S b/arch/tile/kernel/hvglue.S
index d78ee2ad610c..70c661448638 100644
--- a/arch/tile/kernel/hvglue.S
+++ b/arch/tile/kernel/hvglue.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Hypervisor call vector addresses; see <hv/hypervisor.h> */
 .macro gensym sym, val, size
 .org \val
diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c
index e1a078e6828e..d516d61751c2 100644
--- a/arch/tile/kernel/ptrace.c
+++ b/arch/tile/kernel/ptrace.c
@@ -255,7 +255,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 int do_syscall_trace_enter(struct pt_regs *regs)
 {
-	u32 work = ACCESS_ONCE(current_thread_info()->flags);
+	u32 work = READ_ONCE(current_thread_info()->flags);
 
 	if ((work & _TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs)) {
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index 6becb96c60a0..ad83c1e66dbd 100644
--- a/arch/tile/kernel/setup.c
+++ b/arch/tile/kernel/setup.c
@@ -140,7 +140,7 @@ static int __init setup_maxnodemem(char *str)
 {
 	char *endp;
 	unsigned long long maxnodemem;
-	long node;
+	unsigned long node;
 
 	node = str ? simple_strtoul(str, &endp, 0) : INT_MAX;
 	if (node >= MAX_NUMNODES || *endp != ':')
diff --git a/arch/tile/kernel/time.c b/arch/tile/kernel/time.c
index 6643ffbc0615..f95d65f3162b 100644
--- a/arch/tile/kernel/time.c
+++ b/arch/tile/kernel/time.c
@@ -162,6 +162,7 @@ static DEFINE_PER_CPU(struct clock_event_device, tile_timer) = {
 	.set_next_event = tile_timer_set_next_event,
 	.set_state_shutdown = tile_timer_shutdown,
 	.set_state_oneshot = tile_timer_shutdown,
+	.set_state_oneshot_stopped = tile_timer_shutdown,
 	.tick_resume = tile_timer_shutdown,
 };
 
diff --git a/arch/tile/kernel/vdso/Makefile b/arch/tile/kernel/vdso/Makefile
index 71d5f5d71f79..b596a7396382 100644
--- a/arch/tile/kernel/vdso/Makefile
+++ b/arch/tile/kernel/vdso/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Symbols present in the vdso
 vdso-syms = rt_sigreturn gettimeofday
 
diff --git a/arch/tile/kernel/vmlinux.lds.S b/arch/tile/kernel/vmlinux.lds.S
index e1baf094fba4..3558d981e336 100644
--- a/arch/tile/kernel/vmlinux.lds.S
+++ b/arch/tile/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/page.h>
 #include <asm/cache.h>
diff --git a/arch/tile/kvm/Kconfig b/arch/tile/kvm/Kconfig
index 1e968f7550dc..efce89a8473b 100644
--- a/arch/tile/kvm/Kconfig
+++ b/arch/tile/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
diff --git a/arch/tile/lib/Makefile b/arch/tile/lib/Makefile
index c4211cbb2021..815a1fdeb2e4 100644
--- a/arch/tile/lib/Makefile
+++ b/arch/tile/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for TILE-specific library files..
 #
diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char
index f10738d68b2d..f184bde7030e 100644
--- a/arch/um/Kconfig.char
+++ b/arch/um/Kconfig.char
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "UML Character Devices"
 
 config STDERR_CONSOLE
diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 85f6dd204ab6..d9280482a2f8 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config UML
 	bool
 	default y
diff --git a/arch/um/Kconfig.debug b/arch/um/Kconfig.debug
index 68205fd3b08c..967d3109689f 100644
--- a/arch/um/Kconfig.debug
+++ b/arch/um/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/um/Kconfig.net b/arch/um/Kconfig.net
index 820a56f00332..e871af24d9cd 100644
--- a/arch/um/Kconfig.net
+++ b/arch/um/Kconfig.net
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 menu "UML Network Devices"
 	depends on NET
diff --git a/arch/um/Kconfig.rest b/arch/um/Kconfig.rest
index 567eb5fc21df..08327b9c0cbe 100644
--- a/arch/um/Kconfig.rest
+++ b/arch/um/Kconfig.rest
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"
diff --git a/arch/um/Kconfig.um b/arch/um/Kconfig.um
index 4b2ed5858b2e..3e7f228b22e1 100644
--- a/arch/um/Kconfig.um
+++ b/arch/um/Kconfig.um
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config STATIC_LINK
 	bool "Force a static link"
 	default n
@@ -20,6 +21,7 @@ config LD_SCRIPT_DYN
 	bool
 	default y
 	depends on !LD_SCRIPT_STATIC
+        select MODULE_REL_CRCS if MODVERSIONS
 
 source "fs/Kconfig.binfmt"
 
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 6ca4f66085c1..b76fcce397a1 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -121,7 +121,7 @@ archheaders:
 archprepare: include/generated/user_constants.h
 
 LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static
-LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib
+LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib $(call cc-option, -no-pie)
 
 CFLAGS_NO_HARDENING := $(call cc-option, -fno-PIC,) $(call cc-option, -fno-pic,) \
 	$(call cc-option, -fno-stack-protector,) \
diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig
index 5636221b8785..8f114e3b0a7a 100644
--- a/arch/um/configs/i386_defconfig
+++ b/arch/um/configs/i386_defconfig
@@ -53,7 +53,6 @@ CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_INET=y
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_UML_NET=y
 CONFIG_UML_NET_ETHERTAP=y
diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig
index 7a67b7ac1a7e..5d0875fc0db2 100644
--- a/arch/um/configs/x86_64_defconfig
+++ b/arch/um/configs/x86_64_defconfig
@@ -51,7 +51,6 @@ CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_INET=y
-# CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 CONFIG_UML_NET=y
 CONFIG_UML_NET_ETHERTAP=y
diff --git a/arch/um/drivers/cow.h b/arch/um/drivers/cow.h
index 6673508f3426..760c507dd5b6 100644
--- a/arch/um/drivers/cow.h
+++ b/arch/um/drivers/cow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __COW_H__
 #define __COW_H__
 
diff --git a/arch/um/drivers/cow_sys.h b/arch/um/drivers/cow_sys.h
index 67cbee63e702..916811ef5317 100644
--- a/arch/um/drivers/cow_sys.h
+++ b/arch/um/drivers/cow_sys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __COW_SYS_H__
 #define __COW_SYS_H__
 
diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index af326fb6510d..c4d162a94be9 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -148,12 +148,7 @@ void mconsole_proc(struct mc_request *req)
 	}
 
 	do {
-		loff_t pos = file->f_pos;
-		mm_segment_t old_fs = get_fs();
-		set_fs(KERNEL_DS);
-		len = vfs_read(file, buf, PAGE_SIZE - 1, &pos);
-		set_fs(old_fs);
-		file->f_pos = pos;
+		len = kernel_read(file, buf, PAGE_SIZE - 1, &file->f_pos);
 		if (len < 0) {
 			mconsole_reply(req, "Read of file failed", 1, 0);
 			goto out_free;
diff --git a/arch/um/drivers/slip.h b/arch/um/drivers/slip.h
index c64f8c61d274..0f3b7ca99465 100644
--- a/arch/um/drivers/slip.h
+++ b/arch/um/drivers/slip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SLIP_H
 #define __UM_SLIP_H
 
diff --git a/arch/um/drivers/slip_common.c b/arch/um/drivers/slip_common.c
index f597fa7c91d3..20fe4f42743d 100644
--- a/arch/um/drivers/slip_common.c
+++ b/arch/um/drivers/slip_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "slip_common.h"
 #include <net_user.h>
diff --git a/arch/um/drivers/slip_common.h b/arch/um/drivers/slip_common.h
index d574e0a9dc13..d3798b5caf7f 100644
--- a/arch/um/drivers/slip_common.h
+++ b/arch/um/drivers/slip_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SLIP_COMMON_H
 #define __UM_SLIP_COMMON_H
 
diff --git a/arch/um/drivers/slirp.h b/arch/um/drivers/slirp.h
index 89ccf83b7577..4aef2b88249a 100644
--- a/arch/um/drivers/slirp.h
+++ b/arch/um/drivers/slirp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SLIRP_H
 #define __UM_SLIRP_H
 
diff --git a/arch/um/drivers/stderr_console.c b/arch/um/drivers/stderr_console.c
index d07a97f8b994..ecc3a5814932 100644
--- a/arch/um/drivers/stderr_console.c
+++ b/arch/um/drivers/stderr_console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/console.h>
diff --git a/arch/um/include/asm/bugs.h b/arch/um/include/asm/bugs.h
index 6a72e240d5fc..4473942a0839 100644
--- a/arch/um/include/asm/bugs.h
+++ b/arch/um/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_BUGS_H
 #define __UM_BUGS_H
 
diff --git a/arch/um/include/asm/cache.h b/arch/um/include/asm/cache.h
index 19e1bdd67416..5c156273484b 100644
--- a/arch/um/include/asm/cache.h
+++ b/arch/um/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_CACHE_H
 #define __UM_CACHE_H
 
diff --git a/arch/um/include/asm/common.lds.S b/arch/um/include/asm/common.lds.S
index 9e6d5997cfc4..b30d73ca29d0 100644
--- a/arch/um/include/asm/common.lds.S
+++ b/arch/um/include/asm/common.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 
   .fini      : { *(.fini)    } =0x9090
diff --git a/arch/um/include/asm/dma.h b/arch/um/include/asm/dma.h
index f88c5860520b..fdc53642c718 100644
--- a/arch/um/include/asm/dma.h
+++ b/arch/um/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_DMA_H
 #define __UM_DMA_H
 
diff --git a/arch/um/include/asm/fixmap.h b/arch/um/include/asm/fixmap.h
index 1761fd75bf13..2c697a145ac1 100644
--- a/arch/um/include/asm/fixmap.h
+++ b/arch/um/include/asm/fixmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_FIXMAP_H
 #define __UM_FIXMAP_H
 
diff --git a/arch/um/include/asm/hardirq.h b/arch/um/include/asm/hardirq.h
index 756f0778e327..b426796d26fd 100644
--- a/arch/um/include/asm/hardirq.h
+++ b/arch/um/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_UM_HARDIRQ_H
 #define __ASM_UM_HARDIRQ_H
 
diff --git a/arch/um/include/asm/io.h b/arch/um/include/asm/io.h
index 8f35d574f35b..96f77b5232aa 100644
--- a/arch/um/include/asm/io.h
+++ b/arch/um/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UM_IO_H
 #define _ASM_UM_IO_H
 
diff --git a/arch/um/include/asm/irq.h b/arch/um/include/asm/irq.h
index 4a2037f8204b..b5cdd3f91157 100644
--- a/arch/um/include/asm/irq.h
+++ b/arch/um/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_IRQ_H
 #define __UM_IRQ_H
 
diff --git a/arch/um/include/asm/irqflags.h b/arch/um/include/asm/irqflags.h
index 3bb221e1d5a4..cbc6c0013a64 100644
--- a/arch/um/include/asm/irqflags.h
+++ b/arch/um/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_IRQFLAGS_H
 #define __UM_IRQFLAGS_H
 
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index f6d1a3f747a9..86942a492454 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -58,11 +58,6 @@ static inline void release_thread(struct task_struct *task)
 {
 }
 
-static inline void mm_copy_segments(struct mm_struct *from_mm,
-				    struct mm_struct *new_mm)
-{
-}
-
 #define init_stack	(init_thread_union.stack)
 
 /*
diff --git a/arch/um/include/asm/sections.h b/arch/um/include/asm/sections.h
index cafcf684d947..a3c1fb6ed6ad 100644
--- a/arch/um/include/asm/sections.h
+++ b/arch/um/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SECTIONS_H
 #define __UM_SECTIONS_H
 
diff --git a/arch/um/include/asm/setup.h b/arch/um/include/asm/setup.h
index 99f086301f4c..80ada899f254 100644
--- a/arch/um/include/asm/setup.h
+++ b/arch/um/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SETUP_H_INCLUDED
 #define SETUP_H_INCLUDED
 
diff --git a/arch/um/include/asm/smp.h b/arch/um/include/asm/smp.h
index 9c3be355ed01..a8cc1d46ddcb 100644
--- a/arch/um/include/asm/smp.h
+++ b/arch/um/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SMP_H
 #define __UM_SMP_H
 
diff --git a/arch/um/include/asm/stacktrace.h b/arch/um/include/asm/stacktrace.h
index 9a864328c67f..436b55952c3a 100644
--- a/arch/um/include/asm/stacktrace.h
+++ b/arch/um/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UML_STACKTRACE_H
 #define _ASM_UML_STACKTRACE_H
 
diff --git a/arch/um/include/asm/sysrq.h b/arch/um/include/asm/sysrq.h
index c8d332b56b98..8fc8c65cd357 100644
--- a/arch/um/include/asm/sysrq.h
+++ b/arch/um/include/asm/sysrq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SYSRQ_H
 #define __UM_SYSRQ_H
 
diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h
index 053baff03674..9300f7630d2a 100644
--- a/arch/um/include/asm/thread_info.h
+++ b/arch/um/include/asm/thread_info.h
@@ -11,6 +11,7 @@
 #include <asm/types.h>
 #include <asm/page.h>
 #include <asm/segment.h>
+#include <sysdep/ptrace_user.h>
 
 struct thread_info {
 	struct task_struct	*task;		/* main task structure */
@@ -22,6 +23,8 @@ struct thread_info {
 					 	   0-0xBFFFFFFF for user
 						   0-0xFFFFFFFF for kernel */
 	struct thread_info	*real_thread;    /* Points to non-IRQ stack */
+	unsigned long aux_fp_regs[FP_SIZE];	/* auxiliary fp_regs to save/restore
+						   them out-of-band */
 };
 
 #define INIT_THREAD_INFO(tsk)			\
diff --git a/arch/um/include/asm/timex.h b/arch/um/include/asm/timex.h
index 0f4ada08f748..e392a9a5bc9b 100644
--- a/arch/um/include/asm/timex.h
+++ b/arch/um/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_TIMEX_H
 #define __UM_TIMEX_H
 
diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h
index 344d95619d03..dce6db147f24 100644
--- a/arch/um/include/asm/tlb.h
+++ b/arch/um/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_TLB_H
 #define __UM_TLB_H
 
diff --git a/arch/um/include/shared/common-offsets.h b/arch/um/include/shared/common-offsets.h
index c92306809029..4e99fe05576a 100644
--- a/arch/um/include/shared/common-offsets.h
+++ b/arch/um/include/shared/common-offsets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* for use by sys-$SUBARCH/kernel-offsets.c */
 
 DEFINE(KERNEL_MADV_REMOVE, MADV_REMOVE);
diff --git a/arch/um/include/shared/init.h b/arch/um/include/shared/init.h
index 233e2593eee0..b3f5865a92c9 100644
--- a/arch/um/include/shared/init.h
+++ b/arch/um/include/shared/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UML_INIT_H
 #define _LINUX_UML_INIT_H
 
@@ -40,7 +41,7 @@
 typedef int (*initcall_t)(void);
 typedef void (*exitcall_t)(void);
 
-#include <linux/compiler.h>
+#include <linux/compiler_types.h>
 
 /* These are for everybody (although not all archs will actually
    discard it in modules) */
diff --git a/arch/um/include/shared/longjmp.h b/arch/um/include/shared/longjmp.h
index 9bdddf4c405b..b3315c1f198b 100644
--- a/arch/um/include/shared/longjmp.h
+++ b/arch/um/include/shared/longjmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UML_LONGJMP_H
 #define __UML_LONGJMP_H
 
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 574e03fc7ba2..d8ddaf9790d2 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -278,7 +278,7 @@ extern int protect(struct mm_id * mm_idp, unsigned long addr,
 extern int is_skas_winch(int pid, int fd, void *data);
 extern int start_userspace(unsigned long stub_stack);
 extern int copy_context_skas0(unsigned long stack, int pid);
-extern void userspace(struct uml_pt_regs *regs);
+extern void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs);
 extern int map_stub_pages(int fd, unsigned long code, unsigned long data,
 			  unsigned long stack);
 extern void new_thread(void *stack, jmp_buf *buf, void (*handler)(void));
diff --git a/arch/um/kernel/dyn.lds.S b/arch/um/kernel/dyn.lds.S
index 4fdbcf958cd5..d417e3899700 100644
--- a/arch/um/kernel/dyn.lds.S
+++ b/arch/um/kernel/dyn.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/page.h>
 
diff --git a/arch/um/kernel/gmon_syms.c b/arch/um/kernel/gmon_syms.c
index 1bf61266da8e..f138a4a0db99 100644
--- a/arch/um/kernel/gmon_syms.c
+++ b/arch/um/kernel/gmon_syms.c
@@ -7,3 +7,10 @@
 
 extern void __bb_init_func(void *)  __attribute__((weak));
 EXPORT_SYMBOL(__bb_init_func);
+
+extern void __gcov_init(void *)  __attribute__((weak));
+EXPORT_SYMBOL(__gcov_init);
+extern void __gcov_merge_add(void *, unsigned int)  __attribute__((weak));
+EXPORT_SYMBOL(__gcov_merge_add);
+extern void __gcov_exit(void)  __attribute__((weak));
+EXPORT_SYMBOL(__gcov_exit);
diff --git a/arch/um/kernel/kmsg_dump.c b/arch/um/kernel/kmsg_dump.c
index 407d49251d6f..98bdf69e4c2e 100644
--- a/arch/um/kernel/kmsg_dump.c
+++ b/arch/um/kernel/kmsg_dump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kmsg_dump.h>
 #include <linux/console.h>
 #include <shared/init.h>
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 2c7f721eccbc..691b83b10649 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -131,7 +131,7 @@ void new_thread_handler(void)
 	 * callback returns only if the kernel thread execs a process
 	 */
 	n = fn(arg);
-	userspace(&current->thread.regs.regs);
+	userspace(&current->thread.regs.regs, current_thread_info()->aux_fp_regs);
 }
 
 /* Called magically, see new_thread_handler above */
@@ -150,7 +150,7 @@ void fork_handler(void)
 
 	current->thread.prev_sched = NULL;
 
-	userspace(&current->thread.regs.regs);
+	userspace(&current->thread.regs.regs, current_thread_info()->aux_fp_regs);
 }
 
 int copy_thread(unsigned long clone_flags, unsigned long sp,
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 0b034ebbda2a..7f69d17de354 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -98,7 +98,7 @@ static struct clocksource timer_clocksource = {
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static void __init timer_setup(void)
+static void __init um_timer_setup(void)
 {
 	int err;
 
@@ -132,5 +132,5 @@ void read_persistent_clock(struct timespec *ts)
 void __init time_init(void)
 {
 	timer_set_signal_handler();
-	late_time_init = timer_setup;
+	late_time_init = um_timer_setup;
 }
diff --git a/arch/um/kernel/uml.lds.S b/arch/um/kernel/uml.lds.S
index 1840f55ed042..3d6ed6ba5b78 100644
--- a/arch/um/kernel/uml.lds.S
+++ b/arch/um/kernel/uml.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 #include <asm/page.h>
 
diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/arch/um/os-Linux/drivers/tuntap_user.c
index c2e6e1dad876..db24ce0d09a6 100644
--- a/arch/um/os-Linux/drivers/tuntap_user.c
+++ b/arch/um/os-Linux/drivers/tuntap_user.c
@@ -80,7 +80,7 @@ static int tuntap_open_tramp(char *gate, int *fd_out, int me, int remote,
 	pid = run_helper(tuntap_pre_exec, &data, argv);
 
 	if (pid < 0)
-		return -pid;
+		return pid;
 
 	close(remote);
 
diff --git a/arch/um/os-Linux/elf_aux.c b/arch/um/os-Linux/elf_aux.c
index 1a365ddc4d02..77a9321379b7 100644
--- a/arch/um/os-Linux/elf_aux.c
+++ b/arch/um/os-Linux/elf_aux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  arch/um/kernel/elf_aux.c
  *
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 819d68656673..c94c3bd70ccd 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -88,12 +88,11 @@ bad_wait:
 
 extern unsigned long current_stub_stack(void);
 
-static void get_skas_faultinfo(int pid, struct faultinfo *fi)
+static void get_skas_faultinfo(int pid, struct faultinfo *fi, unsigned long *aux_fp_regs)
 {
 	int err;
-	unsigned long fpregs[FP_SIZE];
 
-	err = get_fp_registers(pid, fpregs);
+	err = get_fp_registers(pid, aux_fp_regs);
 	if (err < 0) {
 		printk(UM_KERN_ERR "save_fp_registers returned %d\n",
 		       err);
@@ -113,7 +112,7 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi)
 	 */
 	memcpy(fi, (void *)current_stub_stack(), sizeof(*fi));
 
-	err = put_fp_registers(pid, fpregs);
+	err = put_fp_registers(pid, aux_fp_regs);
 	if (err < 0) {
 		printk(UM_KERN_ERR "put_fp_registers returned %d\n",
 		       err);
@@ -121,9 +120,9 @@ static void get_skas_faultinfo(int pid, struct faultinfo *fi)
 	}
 }
 
-static void handle_segv(int pid, struct uml_pt_regs * regs)
+static void handle_segv(int pid, struct uml_pt_regs *regs, unsigned long *aux_fp_regs)
 {
-	get_skas_faultinfo(pid, &regs->faultinfo);
+	get_skas_faultinfo(pid, &regs->faultinfo, aux_fp_regs);
 	segv(regs->faultinfo, 0, 1, NULL);
 }
 
@@ -332,7 +331,7 @@ int start_userspace(unsigned long stub_stack)
 	return err;
 }
 
-void userspace(struct uml_pt_regs *regs)
+void userspace(struct uml_pt_regs *regs, unsigned long *aux_fp_regs)
 {
 	int err, status, op, pid = userspace_pid[0];
 	/* To prevent races if using_sysemu changes under us.*/
@@ -407,11 +406,11 @@ void userspace(struct uml_pt_regs *regs)
 			case SIGSEGV:
 				if (PTRACE_FULL_FAULTINFO) {
 					get_skas_faultinfo(pid,
-							   &regs->faultinfo);
+							   &regs->faultinfo, aux_fp_regs);
 					(*sig_info[SIGSEGV])(SIGSEGV, (struct siginfo *)&si,
 							     regs);
 				}
-				else handle_segv(pid, regs);
+				else handle_segv(pid, regs, aux_fp_regs);
 				break;
 			case SIGTRAP + 0x80:
 			        handle_trap(pid, regs, local_using_sysemu);
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index b1b6b75c5b17..82bf5f8442ba 100644
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -154,10 +154,10 @@ static int __init nosysemu_cmd_param(char *str, int* add)
 
 __uml_setup("nosysemu", nosysemu_cmd_param,
 "nosysemu\n"
-"    Turns off syscall emulation patch for ptrace (SYSEMU) on.\n"
+"    Turns off syscall emulation patch for ptrace (SYSEMU).\n"
 "    SYSEMU is a performance-patch introduced by Laurent Vivier. It changes\n"
-"    behaviour of ptrace() and helps reducing host context switch rate.\n"
-"    To make it working, you need a kernel patch for your host, too.\n"
+"    behaviour of ptrace() and helps reduce host context switch rates.\n"
+"    To make it work, you need a kernel patch for your host, too.\n"
 "    See http://perso.wanadoo.fr/laurent.vivier/UML/ for further \n"
 "    information.\n\n");
 
diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/os-Linux/user_syms.c
index db4a034aeee1..715594fe5719 100644
--- a/arch/um/os-Linux/user_syms.c
+++ b/arch/um/os-Linux/user_syms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/module.h>
 
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index 15889df9b466..a4dfa7d7636e 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ===========================================================================
 # arch/um: Generic definitions
 # ===========================================================================
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 0769066929c6..d39f0bc6a046 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config UNICORE32
 	def_bool y
 	select ARCH_HAS_DEVMEM_IS_ALLOWED
diff --git a/arch/unicore32/Kconfig.debug b/arch/unicore32/Kconfig.debug
index f075bbe1d46f..de8dae3abc0a 100644
--- a/arch/unicore32/Kconfig.debug
+++ b/arch/unicore32/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/unicore32/include/mach/regs-ac97.h b/arch/unicore32/include/mach/regs-ac97.h
index b7563e9d6503..85c601898d02 100644
--- a/arch/unicore32/include/mach/regs-ac97.h
+++ b/arch/unicore32/include/mach/regs-ac97.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity AC97 Registers
  */
diff --git a/arch/unicore32/include/mach/regs-dmac.h b/arch/unicore32/include/mach/regs-dmac.h
index 66de9e7d1c8f..bbdc52d06a98 100644
--- a/arch/unicore32/include/mach/regs-dmac.h
+++ b/arch/unicore32/include/mach/regs-dmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Direct Memory Access Controller (DMAC)
  */
diff --git a/arch/unicore32/include/mach/regs-gpio.h b/arch/unicore32/include/mach/regs-gpio.h
index 0273b861ef96..806350e1ccb6 100644
--- a/arch/unicore32/include/mach/regs-gpio.h
+++ b/arch/unicore32/include/mach/regs-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity General-Purpose Input/Output (GPIO) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-i2c.h b/arch/unicore32/include/mach/regs-i2c.h
index 463d108f8bfb..b41aa7c92430 100644
--- a/arch/unicore32/include/mach/regs-i2c.h
+++ b/arch/unicore32/include/mach/regs-i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Inter-integrated Circuit (I2C) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-intc.h b/arch/unicore32/include/mach/regs-intc.h
index 25648f89cbd3..4eb1b5b571bb 100644
--- a/arch/unicore32/include/mach/regs-intc.h
+++ b/arch/unicore32/include/mach/regs-intc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUNITY Interrupt Controller (INTC) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-nand.h b/arch/unicore32/include/mach/regs-nand.h
index a7c5563bb550..7f29939251ef 100644
--- a/arch/unicore32/include/mach/regs-nand.h
+++ b/arch/unicore32/include/mach/regs-nand.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity NAND Controller Registers
  */
diff --git a/arch/unicore32/include/mach/regs-ost.h b/arch/unicore32/include/mach/regs-ost.h
index 4a85fb463848..6c63e7b7569e 100644
--- a/arch/unicore32/include/mach/regs-ost.h
+++ b/arch/unicore32/include/mach/regs-ost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Operating System Timer (OST) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-pci.h b/arch/unicore32/include/mach/regs-pci.h
index 6a9341686bf8..25bb307b87c3 100644
--- a/arch/unicore32/include/mach/regs-pci.h
+++ b/arch/unicore32/include/mach/regs-pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity AHB-PCI Bridge Registers
  */
diff --git a/arch/unicore32/include/mach/regs-pm.h b/arch/unicore32/include/mach/regs-pm.h
index 854844aa8f4b..777b1ace39b9 100644
--- a/arch/unicore32/include/mach/regs-pm.h
+++ b/arch/unicore32/include/mach/regs-pm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUNITY Power Manager (PM) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-ps2.h b/arch/unicore32/include/mach/regs-ps2.h
index 17d4e6dc0069..d539d7482462 100644
--- a/arch/unicore32/include/mach/regs-ps2.h
+++ b/arch/unicore32/include/mach/regs-ps2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity PS2 Controller Registers
  */
diff --git a/arch/unicore32/include/mach/regs-resetc.h b/arch/unicore32/include/mach/regs-resetc.h
index 39900cf4c936..5f2b9d77a9ec 100644
--- a/arch/unicore32/include/mach/regs-resetc.h
+++ b/arch/unicore32/include/mach/regs-resetc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Reset Controller (RC) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-rtc.h b/arch/unicore32/include/mach/regs-rtc.h
index e94ca193271d..f2f7f47eb65e 100644
--- a/arch/unicore32/include/mach/regs-rtc.h
+++ b/arch/unicore32/include/mach/regs-rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Real-Time Clock (RTC) control registers
  */
diff --git a/arch/unicore32/include/mach/regs-sdc.h b/arch/unicore32/include/mach/regs-sdc.h
index 1303ecf660ba..658bfaf4cb3c 100644
--- a/arch/unicore32/include/mach/regs-sdc.h
+++ b/arch/unicore32/include/mach/regs-sdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Multi-Media Card and Security Digital Card (MMC/SD) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-spi.h b/arch/unicore32/include/mach/regs-spi.h
index de16895e2dc0..3460647a9c2a 100644
--- a/arch/unicore32/include/mach/regs-spi.h
+++ b/arch/unicore32/include/mach/regs-spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Serial Peripheral Interface (SPI) Registers
  */
diff --git a/arch/unicore32/include/mach/regs-umal.h b/arch/unicore32/include/mach/regs-umal.h
index aa22df74e11d..7023089c61c6 100644
--- a/arch/unicore32/include/mach/regs-umal.h
+++ b/arch/unicore32/include/mach/regs-umal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity Ultra Media Access Layer (UMAL) Ethernet MAC Registers
  */
diff --git a/arch/unicore32/include/mach/regs-unigfx.h b/arch/unicore32/include/mach/regs-unigfx.h
index faf8b287fccf..553d1157c6b2 100644
--- a/arch/unicore32/include/mach/regs-unigfx.h
+++ b/arch/unicore32/include/mach/regs-unigfx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PKUnity UNIGFX Registers
  */
diff --git a/arch/unicore32/include/uapi/asm/byteorder.h b/arch/unicore32/include/uapi/asm/byteorder.h
index ebe1b3fef3e3..864fe4814cf4 100644
--- a/arch/unicore32/include/uapi/asm/byteorder.h
+++ b/arch/unicore32/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/arch/unicore32/include/asm/byteorder.h
  *
diff --git a/arch/unicore32/include/uapi/asm/ptrace.h b/arch/unicore32/include/uapi/asm/ptrace.h
index 187aa2e98a53..2820de83e37d 100644
--- a/arch/unicore32/include/uapi/asm/ptrace.h
+++ b/arch/unicore32/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/arch/unicore32/include/asm/ptrace.h
  *
diff --git a/arch/unicore32/include/uapi/asm/sigcontext.h b/arch/unicore32/include/uapi/asm/sigcontext.h
index 6a2d7671c052..79e56f28e4b5 100644
--- a/arch/unicore32/include/uapi/asm/sigcontext.h
+++ b/arch/unicore32/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/arch/unicore32/include/asm/sigcontext.h
  *
diff --git a/arch/unicore32/include/uapi/asm/unistd.h b/arch/unicore32/include/uapi/asm/unistd.h
index 1f63c476528e..65856eaab163 100644
--- a/arch/unicore32/include/uapi/asm/unistd.h
+++ b/arch/unicore32/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/arch/unicore32/include/asm/unistd.h
  *
diff --git a/arch/unicore32/kernel/Makefile b/arch/unicore32/kernel/Makefile
index 607a72f2ae35..2f79aa56735b 100644
--- a/arch/unicore32/kernel/Makefile
+++ b/arch/unicore32/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/arch/unicore32/kernel/ksyms.h b/arch/unicore32/kernel/ksyms.h
index 31472ad9467a..5d2d5ba324ac 100644
--- a/arch/unicore32/kernel/ksyms.h
+++ b/arch/unicore32/kernel/ksyms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * libgcc functions - functions that are used internally by the
  * compiler...  (prototypes are not correct though, but that
diff --git a/arch/unicore32/lib/Makefile b/arch/unicore32/lib/Makefile
index 87229a558b36..098981a01841 100644
--- a/arch/unicore32/lib/Makefile
+++ b/arch/unicore32/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/unicore32/lib/Makefile
 #
diff --git a/arch/unicore32/mm/Kconfig b/arch/unicore32/mm/Kconfig
index 5f77fb3c63be..c256460cd363 100644
--- a/arch/unicore32/mm/Kconfig
+++ b/arch/unicore32/mm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 comment "Processor Type"
 
 # Select CPU types depending on the architecture selected.  This selects
diff --git a/arch/unicore32/mm/Makefile b/arch/unicore32/mm/Makefile
index 46c166699319..681c0ef5ec9e 100644
--- a/arch/unicore32/mm/Makefile
+++ b/arch/unicore32/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux unicore-specific parts of the memory manager.
 #
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 971feac13506..f08977d82ca0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Select 32 or 64 bit
 config 64BIT
 	bool "64-bit kernel" if ARCH = "x86"
@@ -55,7 +56,7 @@ config X86
 	select ARCH_HAS_KCOV			if X86_64
 	select ARCH_HAS_PMEM_API		if X86_64
 	# Causing hangs/crashes, see the commit that added this change for details.
-	select ARCH_HAS_REFCOUNT		if BROKEN
+	select ARCH_HAS_REFCOUNT
 	select ARCH_HAS_UACCESS_FLUSHCACHE	if X86_64
 	select ARCH_HAS_SET_MEMORY
 	select ARCH_HAS_SG_CHAIN
@@ -92,8 +93,10 @@ config X86
 	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_IOMAP
 	select GENERIC_IRQ_EFFECTIVE_AFF_MASK	if SMP
+	select GENERIC_IRQ_MATRIX_ALLOCATOR	if X86_LOCAL_APIC
 	select GENERIC_IRQ_MIGRATION		if SMP
 	select GENERIC_IRQ_PROBE
+	select GENERIC_IRQ_RESERVATION_MODE
 	select GENERIC_IRQ_SHOW
 	select GENERIC_PENDING_IRQ		if SMP
 	select GENERIC_SMP_IDLE_THREAD
@@ -170,7 +173,7 @@ config X86
 	select HAVE_PERF_USER_STACK_DUMP
 	select HAVE_RCU_TABLE_FREE
 	select HAVE_REGS_AND_STACK_ACCESS_API
-	select HAVE_RELIABLE_STACKTRACE		if X86_64 && FRAME_POINTER_UNWINDER && STACK_VALIDATION
+	select HAVE_RELIABLE_STACKTRACE		if X86_64 && UNWINDER_FRAME_POINTER && STACK_VALIDATION
 	select HAVE_STACK_VALIDATION		if X86_64
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_UNSTABLE_SCHED_CLOCK
@@ -302,7 +305,6 @@ config ARCH_SUPPORTS_DEBUG_PAGEALLOC
 config KASAN_SHADOW_OFFSET
 	hex
 	depends on KASAN
-	default 0xdff8000000000000 if X86_5LEVEL
 	default 0xdffffc0000000000
 
 config HAVE_INTEL_TXT
@@ -1802,6 +1804,16 @@ config X86_SMAP
 
 	  If unsure, say Y.
 
+config X86_INTEL_UMIP
+	def_bool n
+	depends on CPU_SUP_INTEL
+	prompt "Intel User Mode Instruction Prevention" if EXPERT
+	---help---
+	  The User Mode Instruction Prevention (UMIP) is a security
+	  feature in newer Intel processors. If enabled, a general
+	  protection fault is issued if the instructions SGDT, SLDT,
+	  SIDT, SMSW and STR are executed in user mode.
+
 config X86_INTEL_MPX
 	prompt "Intel MPX (Memory Protection Extensions)"
 	def_bool n
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 3ba5ff2f2d08..65a9a4716e34 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Put here option for CPU selection and depending optimization
 choice
 	prompt "Processor family"
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 71a48a30fc84..6293a8768a91 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 config TRACE_IRQFLAGS_SUPPORT
@@ -358,28 +359,14 @@ config PUNIT_ATOM_DEBUG
 
 choice
 	prompt "Choose kernel unwinder"
-	default FRAME_POINTER_UNWINDER
+	default UNWINDER_ORC if X86_64
+	default UNWINDER_FRAME_POINTER if X86_32
 	---help---
 	  This determines which method will be used for unwinding kernel stack
 	  traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
 	  livepatch, lockdep, and more.
 
-config FRAME_POINTER_UNWINDER
-	bool "Frame pointer unwinder"
-	select FRAME_POINTER
-	---help---
-	  This option enables the frame pointer unwinder for unwinding kernel
-	  stack traces.
-
-	  The unwinder itself is fast and it uses less RAM than the ORC
-	  unwinder, but the kernel text size will grow by ~3% and the kernel's
-	  overall performance will degrade by roughly 5-10%.
-
-	  This option is recommended if you want to use the livepatch
-	  consistency model, as this is currently the only way to get a
-	  reliable stack trace (CONFIG_HAVE_RELIABLE_STACKTRACE).
-
-config ORC_UNWINDER
+config UNWINDER_ORC
 	bool "ORC unwinder"
 	depends on X86_64
 	select STACK_VALIDATION
@@ -395,7 +382,22 @@ config ORC_UNWINDER
 	  Enabling this option will increase the kernel's runtime memory usage
 	  by roughly 2-4MB, depending on your kernel config.
 
-config GUESS_UNWINDER
+config UNWINDER_FRAME_POINTER
+	bool "Frame pointer unwinder"
+	select FRAME_POINTER
+	---help---
+	  This option enables the frame pointer unwinder for unwinding kernel
+	  stack traces.
+
+	  The unwinder itself is fast and it uses less RAM than the ORC
+	  unwinder, but the kernel text size will grow by ~3% and the kernel's
+	  overall performance will degrade by roughly 5-10%.
+
+	  This option is recommended if you want to use the livepatch
+	  consistency model, as this is currently the only way to get a
+	  reliable stack trace (CONFIG_HAVE_RELIABLE_STACKTRACE).
+
+config UNWINDER_GUESS
 	bool "Guess unwinder"
 	depends on EXPERT
 	---help---
@@ -410,7 +412,7 @@ config GUESS_UNWINDER
 endchoice
 
 config FRAME_POINTER
-	depends on !ORC_UNWINDER && !GUESS_UNWINDER
+	depends on !UNWINDER_ORC && !UNWINDER_GUESS
 	bool
 
 endmenu
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 6276572259c8..a20eacd9c7e9 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Unified Makefile for i386 and x86_64
 
 # select defconfig based on actual architecture
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
index 5b7e898ffd9a..45af19921ebd 100644
--- a/arch/x86/Makefile.um
+++ b/arch/x86/Makefile.um
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 core-y += arch/x86/crypto/
 
 ifeq ($(CONFIG_X86_32),y)
diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
index f3717d36718a..1f5faf8606b4 100644
--- a/arch/x86/Makefile_32.cpu
+++ b/arch/x86/Makefile_32.cpu
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # CPU tuning section - shared with UML.
 # Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
 
diff --git a/arch/x86/boot/.gitignore b/arch/x86/boot/.gitignore
index e3cf9f682be5..09d25dd09307 100644
--- a/arch/x86/boot/.gitignore
+++ b/arch/x86/boot/.gitignore
@@ -7,3 +7,6 @@ zoffset.h
 setup
 setup.bin
 setup.elf
+fdimage
+mtools.conf
+image.iso
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index d88a2fddba8c..9b5adae9cc40 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -123,63 +123,26 @@ image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
 $(obj)/mtools.conf: $(src)/mtools.conf.in
 	sed -e 's|@OBJ@|$(obj)|g' < $< > $@
 
+quiet_cmd_genimage = GENIMAGE $3
+cmd_genimage = sh $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
+			$(obj)/mtools.conf '$(image_cmdline)' $(FDINITRD)
+
 # This requires write access to /dev/fd0
 bzdisk: $(obj)/bzImage $(obj)/mtools.conf
-	MTOOLSRC=$(obj)/mtools.conf mformat a:			; sync
-	syslinux /dev/fd0					; sync
-	echo '$(image_cmdline)' | \
-		MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
-	fi
-	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux	; sync
+	$(call cmd,genimage,bzdisk,/dev/fd0)
 
 # These require being root or having syslinux 2.02 or higher installed
 fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
-	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
-	MTOOLSRC=$(obj)/mtools.conf mformat v:			; sync
-	syslinux $(obj)/fdimage					; sync
-	echo '$(image_cmdline)' | \
-		MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
-	fi
-	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux	; sync
+	$(call cmd,genimage,fdimage144,$(obj)/fdimage)
+	@$(kecho) 'Kernel: $(obj)/fdimage is ready'
 
 fdimage288: $(obj)/bzImage $(obj)/mtools.conf
-	dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
-	MTOOLSRC=$(obj)/mtools.conf mformat w:			; sync
-	syslinux $(obj)/fdimage					; sync
-	echo '$(image_cmdline)' | \
-		MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
-	fi
-	MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux	; sync
+	$(call cmd,genimage,fdimage288,$(obj)/fdimage)
+	@$(kecho) 'Kernel: $(obj)/fdimage is ready'
 
 isoimage: $(obj)/bzImage
-	-rm -rf $(obj)/isoimage
-	mkdir $(obj)/isoimage
-	for i in lib lib64 share end ; do \
-		if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
-			cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
-			if [ -f /usr/$$i/syslinux/ldlinux.c32 ]; then \
-				cp /usr/$$i/syslinux/ldlinux.c32 $(obj)/isoimage ; \
-			fi ; \
-			break ; \
-		fi ; \
-		if [ $$i = end ] ; then exit 1 ; fi ; \
-	done
-	cp $(obj)/bzImage $(obj)/isoimage/linux
-	echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
-	if [ -f '$(FDINITRD)' ] ; then \
-		cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
-	fi
-	mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
-		-no-emul-boot -boot-load-size 4 -boot-info-table \
-		$(obj)/isoimage
-	isohybrid $(obj)/image.iso 2>/dev/null || true
-	rm -rf $(obj)/isoimage
+	$(call cmd,genimage,isoimage,$(obj)/image.iso)
+	@$(kecho) 'Kernel: $(obj)/image.iso is ready'
 
 bzlilo: $(obj)/bzImage
 	if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
diff --git a/arch/x86/boot/code16gcc.h b/arch/x86/boot/code16gcc.h
index 5ff426535397..e19fd7536307 100644
--- a/arch/x86/boot/code16gcc.h
+++ b/arch/x86/boot/code16gcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #
 # code16gcc.h
 #
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 8a958274b54c..1e9c322e973a 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/arch/x86/boot/compressed/Makefile
 #
@@ -35,6 +36,7 @@ KBUILD_CFLAGS += -mno-mmx -mno-sse
 KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
 KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
 KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
+KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
 
 KBUILD_AFLAGS  := $(KBUILD_CFLAGS) -D__ASSEMBLY__
 GCOV_PROFILE := n
@@ -77,6 +79,7 @@ vmlinux-objs-$(CONFIG_EARLY_PRINTK) += $(obj)/early_serial_console.o
 vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/kaslr.o
 ifdef CONFIG_X86_64
 	vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/pagetable.o
+	vmlinux-objs-y += $(obj)/mem_encrypt.o
 endif
 
 $(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
index 9dc1ce6ba3c0..0cb325734cfb 100644
--- a/arch/x86/boot/compressed/cmdline.c
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "misc.h"
 
 #if CONFIG_EARLY_PRINTK || CONFIG_RANDOMIZE_BASE
diff --git a/arch/x86/boot/compressed/cpuflags.c b/arch/x86/boot/compressed/cpuflags.c
index aa313466118b..6448a8196d32 100644
--- a/arch/x86/boot/compressed/cpuflags.c
+++ b/arch/x86/boot/compressed/cpuflags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifdef CONFIG_RANDOMIZE_BASE
 
 #include "../cpuflags.c"
diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index c0223f1a89d7..e799dc5c6448 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOOT_COMPRESSED_EBOOT_H
 #define BOOT_COMPRESSED_EBOOT_H
 
diff --git a/arch/x86/boot/compressed/efi_stub_32.S b/arch/x86/boot/compressed/efi_stub_32.S
index a53440e81d52..257e341fd2c8 100644
--- a/arch/x86/boot/compressed/efi_stub_32.S
+++ b/arch/x86/boot/compressed/efi_stub_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * EFI call stub for IA32.
  *
diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S
index 630384a4c14a..bff9ab7c6317 100644
--- a/arch/x86/boot/compressed/efi_thunk_64.S
+++ b/arch/x86/boot/compressed/efi_thunk_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2014, 2015 Intel Corporation; author Matt Fleming
  *
diff --git a/arch/x86/boot/compressed/error.c b/arch/x86/boot/compressed/error.c
index 31922023de49..c881878e56d3 100644
--- a/arch/x86/boot/compressed/error.c
+++ b/arch/x86/boot/compressed/error.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Callers outside of misc.c need access to the error reporting routines,
  * but the *_putstr() functions need to stay in misc.c because of how
diff --git a/arch/x86/boot/compressed/error.h b/arch/x86/boot/compressed/error.h
index d732e608e3af..1de5821184f1 100644
--- a/arch/x86/boot/compressed/error.h
+++ b/arch/x86/boot/compressed/error.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOOT_COMPRESSED_ERROR_H
 #define BOOT_COMPRESSED_ERROR_H
 
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 11c68cf53d4e..37380c0d5999 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/boot/head.S
  *
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index b4a5d284391c..20919b4f3133 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/boot/head.S
  *
@@ -130,6 +131,19 @@ ENTRY(startup_32)
  /*
   * Build early 4G boot pagetable
   */
+	/*
+	 * If SEV is active then set the encryption mask in the page tables.
+	 * This will insure that when the kernel is copied and decompressed
+	 * it will be done so encrypted.
+	 */
+	call	get_sev_encryption_bit
+	xorl	%edx, %edx
+	testl	%eax, %eax
+	jz	1f
+	subl	$32, %eax	/* Encryption bit is always above bit 31 */
+	bts	%eax, %edx	/* Set encryption mask for page tables */
+1:
+
 	/* Initialize Page tables to 0 */
 	leal	pgtable(%ebx), %edi
 	xorl	%eax, %eax
@@ -140,12 +154,14 @@ ENTRY(startup_32)
 	leal	pgtable + 0(%ebx), %edi
 	leal	0x1007 (%edi), %eax
 	movl	%eax, 0(%edi)
+	addl	%edx, 4(%edi)
 
 	/* Build Level 3 */
 	leal	pgtable + 0x1000(%ebx), %edi
 	leal	0x1007(%edi), %eax
 	movl	$4, %ecx
 1:	movl	%eax, 0x00(%edi)
+	addl	%edx, 0x04(%edi)
 	addl	$0x00001000, %eax
 	addl	$8, %edi
 	decl	%ecx
@@ -156,6 +172,7 @@ ENTRY(startup_32)
 	movl	$0x00000183, %eax
 	movl	$2048, %ecx
 1:	movl	%eax, 0(%edi)
+	addl	%edx, 4(%edi)
 	addl	$0x00200000, %eax
 	addl	$8, %edi
 	decl	%ecx
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index 17818ba6906f..a63fbc25ce84 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kaslr.c
  *
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
new file mode 100644
index 000000000000..54f5f6625a73
--- /dev/null
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -0,0 +1,120 @@
+/*
+ * AMD Memory Encryption Support
+ *
+ * Copyright (C) 2017 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/processor-flags.h>
+#include <asm/msr.h>
+#include <asm/asm-offsets.h>
+
+	.text
+	.code32
+ENTRY(get_sev_encryption_bit)
+	xor	%eax, %eax
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+	push	%ebx
+	push	%ecx
+	push	%edx
+	push	%edi
+
+	/*
+	 * RIP-relative addressing is needed to access the encryption bit
+	 * variable. Since we are running in 32-bit mode we need this call/pop
+	 * sequence to get the proper relative addressing.
+	 */
+	call	1f
+1:	popl	%edi
+	subl	$1b, %edi
+
+	movl	enc_bit(%edi), %eax
+	cmpl	$0, %eax
+	jge	.Lsev_exit
+
+	/* Check if running under a hypervisor */
+	movl	$1, %eax
+	cpuid
+	bt	$31, %ecx		/* Check the hypervisor bit */
+	jnc	.Lno_sev
+
+	movl	$0x80000000, %eax	/* CPUID to check the highest leaf */
+	cpuid
+	cmpl	$0x8000001f, %eax	/* See if 0x8000001f is available */
+	jb	.Lno_sev
+
+	/*
+	 * Check for the SEV feature:
+	 *   CPUID Fn8000_001F[EAX] - Bit 1
+	 *   CPUID Fn8000_001F[EBX] - Bits 5:0
+	 *     Pagetable bit position used to indicate encryption
+	 */
+	movl	$0x8000001f, %eax
+	cpuid
+	bt	$1, %eax		/* Check if SEV is available */
+	jnc	.Lno_sev
+
+	movl	$MSR_AMD64_SEV, %ecx	/* Read the SEV MSR */
+	rdmsr
+	bt	$MSR_AMD64_SEV_ENABLED_BIT, %eax	/* Check if SEV is active */
+	jnc	.Lno_sev
+
+	movl	%ebx, %eax
+	andl	$0x3f, %eax		/* Return the encryption bit location */
+	movl	%eax, enc_bit(%edi)
+	jmp	.Lsev_exit
+
+.Lno_sev:
+	xor	%eax, %eax
+	movl	%eax, enc_bit(%edi)
+
+.Lsev_exit:
+	pop	%edi
+	pop	%edx
+	pop	%ecx
+	pop	%ebx
+
+#endif	/* CONFIG_AMD_MEM_ENCRYPT */
+
+	ret
+ENDPROC(get_sev_encryption_bit)
+
+	.code64
+ENTRY(get_sev_encryption_mask)
+	xor	%rax, %rax
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+	push	%rbp
+	push	%rdx
+
+	movq	%rsp, %rbp		/* Save current stack pointer */
+
+	call	get_sev_encryption_bit	/* Get the encryption bit position */
+	testl	%eax, %eax
+	jz	.Lno_sev_mask
+
+	xor	%rdx, %rdx
+	bts	%rax, %rdx		/* Create the encryption mask */
+	mov	%rdx, %rax		/* ... and return it */
+
+.Lno_sev_mask:
+	movq	%rbp, %rsp		/* Restore original stack pointer */
+
+	pop	%rdx
+	pop	%rbp
+#endif
+
+	ret
+ENDPROC(get_sev_encryption_mask)
+
+	.data
+enc_bit:
+	.int	0xffffffff
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index c14217cd0155..b50c42455e25 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * misc.c
  *
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 766a5211f827..9d323dc6b159 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOOT_COMPRESSED_MISC_H
 #define BOOT_COMPRESSED_MISC_H
 
@@ -108,4 +109,6 @@ static inline void console_init(void)
 { }
 #endif
 
+unsigned long get_sev_encryption_mask(void);
+
 #endif
diff --git a/arch/x86/boot/compressed/pagetable.c b/arch/x86/boot/compressed/pagetable.c
index f1aa43854bed..d5364ca2e3f9 100644
--- a/arch/x86/boot/compressed/pagetable.c
+++ b/arch/x86/boot/compressed/pagetable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This code is used on x86_64 to create page table identity mappings on
  * demand by building up a new set of page tables (or appending to the
@@ -76,16 +77,18 @@ static unsigned long top_level_pgt;
  * Mapping information structure passed to kernel_ident_mapping_init().
  * Due to relocation, pointers must be assigned at run time not build time.
  */
-static struct x86_mapping_info mapping_info = {
-	.page_flag       = __PAGE_KERNEL_LARGE_EXEC,
-};
+static struct x86_mapping_info mapping_info;
 
 /* Locates and clears a region for a new top level page table. */
 void initialize_identity_maps(void)
 {
+	unsigned long sev_me_mask = get_sev_encryption_mask();
+
 	/* Init mapping_info with run-time function/buffer pointers. */
 	mapping_info.alloc_pgt_page = alloc_pgt_page;
 	mapping_info.context = &pgt_data;
+	mapping_info.page_flag = __PAGE_KERNEL_LARGE_EXEC | sev_me_mask;
+	mapping_info.kernpg_flag = _KERNPG_TABLE | sev_me_mask;
 
 	/*
 	 * It should be impossible for this not to already be true,
diff --git a/arch/x86/boot/compressed/string.c b/arch/x86/boot/compressed/string.c
index cea140ce6b42..19dbbcdd1a53 100644
--- a/arch/x86/boot/compressed/string.c
+++ b/arch/x86/boot/compressed/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This provides an optimized implementation of memcpy, and a simplified
  * implementation of memset and memmove. These are used here because the
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
index e24e0a0c90c9..f491bbde8493 100644
--- a/arch/x86/boot/compressed/vmlinux.lds.S
+++ b/arch/x86/boot/compressed/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/vmlinux.lds.h>
 
 OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT)
diff --git a/arch/x86/boot/cpuflags.c b/arch/x86/boot/cpuflags.c
index 9e77c23c2422..a0b75f73dc63 100644
--- a/arch/x86/boot/cpuflags.c
+++ b/arch/x86/boot/cpuflags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include "bitops.h"
 
diff --git a/arch/x86/boot/cpuflags.h b/arch/x86/boot/cpuflags.h
index 15ad56a3f905..2e20814d3ce3 100644
--- a/arch/x86/boot/cpuflags.h
+++ b/arch/x86/boot/cpuflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOOT_CPUFLAGS_H
 #define BOOT_CPUFLAGS_H
 
diff --git a/arch/x86/boot/ctype.h b/arch/x86/boot/ctype.h
index 020f137df7a2..8f5ef2994b5e 100644
--- a/arch/x86/boot/ctype.h
+++ b/arch/x86/boot/ctype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOOT_CTYPE_H
 #define BOOT_CTYPE_H
 
diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index f0b8d6d93164..b25c53527a94 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Serial port routines for use during early boot reporting. This code is
  * included from both the compressed kernel and the regular kernel.
diff --git a/arch/x86/boot/genimage.sh b/arch/x86/boot/genimage.sh
new file mode 100644
index 000000000000..49f4970f693b
--- /dev/null
+++ b/arch/x86/boot/genimage.sh
@@ -0,0 +1,124 @@
+#!/bin/sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2017 by Changbin Du <changbin.du@intel.com>
+#
+# Adapted from code in arch/x86/boot/Makefile by H. Peter Anvin and others
+#
+# "make fdimage/fdimage144/fdimage288/isoimage" script for x86 architecture
+#
+# Arguments:
+#   $1 - fdimage format
+#   $2 - target image file
+#   $3 - kernel bzImage file
+#   $4 - mtool configuration file
+#   $5 - kernel cmdline
+#   $6 - inird image file
+#
+
+# Use "make V=1" to debug this script
+case "${KBUILD_VERBOSE}" in
+*1*)
+        set -x
+        ;;
+esac
+
+verify () {
+	if [ ! -f "$1" ]; then
+		echo ""                                                   1>&2
+		echo " *** Missing file: $1"                              1>&2
+		echo ""                                                   1>&2
+		exit 1
+	fi
+}
+
+
+export MTOOLSRC=$4
+FIMAGE=$2
+FBZIMAGE=$3
+KCMDLINE=$5
+FDINITRD=$6
+
+# Make sure the files actually exist
+verify "$FBZIMAGE"
+verify "$MTOOLSRC"
+
+genbzdisk() {
+	mformat a:
+	syslinux $FIMAGE
+	echo "$KCMDLINE" | mcopy - a:syslinux.cfg
+	if [ -f "$FDINITRD" ] ; then
+		mcopy "$FDINITRD" a:initrd.img
+	fi
+	mcopy $FBZIMAGE a:linux
+}
+
+genfdimage144() {
+	dd if=/dev/zero of=$FIMAGE bs=1024 count=1440 2> /dev/null
+	mformat v:
+	syslinux $FIMAGE
+	echo "$KCMDLINE" | mcopy - v:syslinux.cfg
+	if [ -f "$FDINITRD" ] ; then
+		mcopy "$FDINITRD" v:initrd.img
+	fi
+	mcopy $FBZIMAGE v:linux
+}
+
+genfdimage288() {
+	dd if=/dev/zero of=$FIMAGE bs=1024 count=2880 2> /dev/null
+	mformat w:
+	syslinux $FIMAGE
+	echo "$KCMDLINE" | mcopy - W:syslinux.cfg
+	if [ -f "$FDINITRD" ] ; then
+		mcopy "$FDINITRD" w:initrd.img
+	fi
+	mcopy $FBZIMAGE w:linux
+}
+
+genisoimage() {
+	tmp_dir=`dirname $FIMAGE`/isoimage
+	rm -rf $tmp_dir
+	mkdir $tmp_dir
+	for i in lib lib64 share end ; do
+		for j in syslinux ISOLINUX ; do
+			if [ -f /usr/$i/$j/isolinux.bin ] ; then
+				isolinux=/usr/$i/$j/isolinux.bin
+				cp $isolinux $tmp_dir
+			fi
+		done
+		for j in syslinux syslinux/modules/bios ; do
+			if [ -f /usr/$i/$j/ldlinux.c32 ]; then
+				ldlinux=/usr/$i/$j/ldlinux.c32
+				cp $ldlinux $tmp_dir
+			fi
+		done
+		if [ -n "$isolinux" -a -n "$ldlinux" ] ; then
+			break
+		fi
+		if [ $i = end -a -z "$isolinux" ] ; then
+			echo 'Need an isolinux.bin file, please install syslinux/isolinux.'
+			exit 1
+		fi
+	done
+	cp $FBZIMAGE $tmp_dir/linux
+	echo "$KCMDLINE" > $tmp_dir/isolinux.cfg
+	if [ -f "$FDINITRD" ] ; then
+		cp "$FDINITRD" $tmp_dir/initrd.img
+	fi
+	mkisofs -J -r -input-charset=utf-8 -quiet -o $FIMAGE -b isolinux.bin \
+		-c boot.cat -no-emul-boot -boot-load-size 4 -boot-info-table \
+		$tmp_dir
+	isohybrid $FIMAGE 2>/dev/null || true
+	rm -rf $tmp_dir
+}
+
+case $1 in
+	bzdisk)     genbzdisk;;
+	fdimage144) genfdimage144;;
+	fdimage288) genfdimage288;;
+	isoimage)   genisoimage;;
+	*)          echo 'Unknown image format'; exit 1;
+esac
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 1bb08ecffd24..850b8762e889 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	header.S
  *
@@ -16,7 +17,6 @@
  */
 
 #include <asm/segment.h>
-#include <generated/utsrelease.h>
 #include <asm/boot.h>
 #include <asm/page_types.h>
 #include <asm/setup.h>
diff --git a/arch/x86/boot/string.h b/arch/x86/boot/string.h
index f274a50db5fa..3d78e27077f4 100644
--- a/arch/x86/boot/string.h
+++ b/arch/x86/boot/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BOOT_STRING_H
 #define BOOT_STRING_H
 
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index 0702d2531bc7..d4e6cd4577e5 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 1997 Martin Mares
diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c
index 45bc9402aa49..a14c5178d4ba 100644
--- a/arch/x86/boot/video-vga.c
+++ b/arch/x86/boot/video-vga.c
@@ -241,9 +241,9 @@ static int vga_probe(void)
 		vga_modes,
 	};
 	static int mode_count[] = {
-		sizeof(cga_modes)/sizeof(struct mode_info),
-		sizeof(ega_modes)/sizeof(struct mode_info),
-		sizeof(vga_modes)/sizeof(struct mode_info),
+		ARRAY_SIZE(cga_modes),
+		ARRAY_SIZE(ega_modes),
+		ARRAY_SIZE(vga_modes),
 	};
 
 	struct biosregs ireg, oreg;
diff --git a/arch/x86/configs/tiny.config b/arch/x86/configs/tiny.config
index 550cd5012b73..66c9e2aab16c 100644
--- a/arch/x86/configs/tiny.config
+++ b/arch/x86/configs/tiny.config
@@ -1,5 +1,5 @@
 CONFIG_NOHIGHMEM=y
 # CONFIG_HIGHMEM4G is not set
 # CONFIG_HIGHMEM64G is not set
-CONFIG_GUESS_UNWINDER=y
-# CONFIG_FRAME_POINTER_UNWINDER is not set
+CONFIG_UNWINDER_GUESS=y
+# CONFIG_UNWINDER_FRAME_POINTER is not set
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 4a4b16e56d35..e32fc1f274d8 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -299,6 +299,7 @@ CONFIG_DEBUG_STACKOVERFLOW=y
 # CONFIG_DEBUG_RODATA_TEST is not set
 CONFIG_DEBUG_BOOT_PARAMS=y
 CONFIG_OPTIMIZE_INLINING=y
+CONFIG_UNWINDER_ORC=y
 CONFIG_SECURITY=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_SECURITY_SELINUX=y
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 9e32d40d71bd..5f07333bb224 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific CryptoAPI modules.
 #
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 5c15d6b57329..3bf3dcf29825 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -28,6 +28,7 @@
 #include <crypto/cryptd.h>
 #include <crypto/ctr.h>
 #include <crypto/b128ops.h>
+#include <crypto/gcm.h>
 #include <crypto/xts.h>
 #include <asm/cpu_device_id.h>
 #include <asm/fpu/api.h>
@@ -1067,9 +1068,10 @@ static struct skcipher_alg aesni_skciphers[] = {
 	}
 };
 
+static
 struct simd_skcipher_alg *aesni_simd_skciphers[ARRAY_SIZE(aesni_skciphers)];
 
-struct {
+static struct {
 	const char *algname;
 	const char *drvname;
 	const char *basename;
@@ -1131,7 +1133,7 @@ static struct aead_alg aesni_aead_algs[] = { {
 	.setauthsize		= common_rfc4106_set_authsize,
 	.encrypt		= helper_rfc4106_encrypt,
 	.decrypt		= helper_rfc4106_decrypt,
-	.ivsize			= 8,
+	.ivsize			= GCM_RFC4106_IV_SIZE,
 	.maxauthsize		= 16,
 	.base = {
 		.cra_name		= "__gcm-aes-aesni",
@@ -1149,7 +1151,7 @@ static struct aead_alg aesni_aead_algs[] = { {
 	.setauthsize		= rfc4106_set_authsize,
 	.encrypt		= rfc4106_encrypt,
 	.decrypt		= rfc4106_decrypt,
-	.ivsize			= 8,
+	.ivsize			= GCM_RFC4106_IV_SIZE,
 	.maxauthsize		= 16,
 	.base = {
 		.cra_name		= "rfc4106(gcm(aes))",
@@ -1165,7 +1167,7 @@ static struct aead_alg aesni_aead_algs[] = { {
 	.setauthsize		= generic_gcmaes_set_authsize,
 	.encrypt		= generic_gcmaes_encrypt,
 	.decrypt		= generic_gcmaes_decrypt,
-	.ivsize			= 12,
+	.ivsize			= GCM_AES_IV_SIZE,
 	.maxauthsize		= 16,
 	.base = {
 		.cra_name		= "gcm(aes)",
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
index 246c67006ed0..8c1fcb6bad21 100644
--- a/arch/x86/crypto/blowfish-x86_64-asm_64.S
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -33,7 +33,7 @@
 #define s3	((16 + 2 + (3 * 256)) * 4)
 
 /* register macros */
-#define CTX %rdi
+#define CTX %r12
 #define RIO %rsi
 
 #define RX0 %rax
@@ -56,12 +56,12 @@
 #define RX2bh %ch
 #define RX3bh %dh
 
-#define RT0 %rbp
+#define RT0 %rdi
 #define RT1 %rsi
 #define RT2 %r8
 #define RT3 %r9
 
-#define RT0d %ebp
+#define RT0d %edi
 #define RT1d %esi
 #define RT2d %r8d
 #define RT3d %r9d
@@ -120,13 +120,14 @@
 
 ENTRY(__blowfish_enc_blk)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 *	%rcx: bool, if true: xor output
 	 */
-	movq %rbp, %r11;
+	movq %r12, %r11;
 
+	movq %rdi, CTX;
 	movq %rsi, %r10;
 	movq %rdx, RIO;
 
@@ -142,7 +143,7 @@ ENTRY(__blowfish_enc_blk)
 	round_enc(14);
 	add_roundkey_enc(16);
 
-	movq %r11, %rbp;
+	movq %r11, %r12;
 
 	movq %r10, RIO;
 	test %cl, %cl;
@@ -157,12 +158,13 @@ ENDPROC(__blowfish_enc_blk)
 
 ENTRY(blowfish_dec_blk)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
-	movq %rbp, %r11;
+	movq %r12, %r11;
 
+	movq %rdi, CTX;
 	movq %rsi, %r10;
 	movq %rdx, RIO;
 
@@ -181,7 +183,7 @@ ENTRY(blowfish_dec_blk)
 	movq %r10, RIO;
 	write_block();
 
-	movq %r11, %rbp;
+	movq %r11, %r12;
 
 	ret;
 ENDPROC(blowfish_dec_blk)
@@ -298,20 +300,21 @@ ENDPROC(blowfish_dec_blk)
 
 ENTRY(__blowfish_enc_blk_4way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 *	%rcx: bool, if true: xor output
 	 */
-	pushq %rbp;
+	pushq %r12;
 	pushq %rbx;
 	pushq %rcx;
 
-	preload_roundkey_enc(0);
-
+	movq %rdi, CTX
 	movq %rsi, %r11;
 	movq %rdx, RIO;
 
+	preload_roundkey_enc(0);
+
 	read_block4();
 
 	round_enc4(0);
@@ -324,39 +327,40 @@ ENTRY(__blowfish_enc_blk_4way)
 	round_enc4(14);
 	add_preloaded_roundkey4();
 
-	popq %rbp;
+	popq %r12;
 	movq %r11, RIO;
 
-	test %bpl, %bpl;
+	test %r12b, %r12b;
 	jnz .L__enc_xor4;
 
 	write_block4();
 
 	popq %rbx;
-	popq %rbp;
+	popq %r12;
 	ret;
 
 .L__enc_xor4:
 	xor_block4();
 
 	popq %rbx;
-	popq %rbp;
+	popq %r12;
 	ret;
 ENDPROC(__blowfish_enc_blk_4way)
 
 ENTRY(blowfish_dec_blk_4way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
-	pushq %rbp;
+	pushq %r12;
 	pushq %rbx;
-	preload_roundkey_dec(17);
 
-	movq %rsi, %r11;
+	movq %rdi, CTX;
+	movq %rsi, %r11
 	movq %rdx, RIO;
 
+	preload_roundkey_dec(17);
 	read_block4();
 
 	round_dec4(17);
@@ -373,7 +377,7 @@ ENTRY(blowfish_dec_blk_4way)
 	write_block4();
 
 	popq %rbx;
-	popq %rbp;
+	popq %r12;
 
 	ret;
 ENDPROC(blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
index 310319c601ed..95ba6956a7f6 100644
--- a/arch/x86/crypto/camellia-x86_64-asm_64.S
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -75,17 +75,17 @@
 #define RCD1bh %dh
 
 #define RT0 %rsi
-#define RT1 %rbp
+#define RT1 %r12
 #define RT2 %r8
 
 #define RT0d %esi
-#define RT1d %ebp
+#define RT1d %r12d
 #define RT2d %r8d
 
 #define RT2bl %r8b
 
 #define RXOR %r9
-#define RRBP %r10
+#define RR12 %r10
 #define RDST %r11
 
 #define RXORd %r9d
@@ -197,7 +197,7 @@ ENTRY(__camellia_enc_blk)
 	 *	%rdx: src
 	 *	%rcx: bool xor
 	 */
-	movq %rbp, RRBP;
+	movq %r12, RR12;
 
 	movq %rcx, RXOR;
 	movq %rsi, RDST;
@@ -227,13 +227,13 @@ ENTRY(__camellia_enc_blk)
 
 	enc_outunpack(mov, RT1);
 
-	movq RRBP, %rbp;
+	movq RR12, %r12;
 	ret;
 
 .L__enc_xor:
 	enc_outunpack(xor, RT1);
 
-	movq RRBP, %rbp;
+	movq RR12, %r12;
 	ret;
 ENDPROC(__camellia_enc_blk)
 
@@ -248,7 +248,7 @@ ENTRY(camellia_dec_blk)
 	movl $24, RXORd;
 	cmovel RXORd, RT2d; /* max */
 
-	movq %rbp, RRBP;
+	movq %r12, RR12;
 	movq %rsi, RDST;
 	movq %rdx, RIO;
 
@@ -271,7 +271,7 @@ ENTRY(camellia_dec_blk)
 
 	dec_outunpack();
 
-	movq RRBP, %rbp;
+	movq RR12, %r12;
 	ret;
 ENDPROC(camellia_dec_blk)
 
@@ -433,7 +433,7 @@ ENTRY(__camellia_enc_blk_2way)
 	 */
 	pushq %rbx;
 
-	movq %rbp, RRBP;
+	movq %r12, RR12;
 	movq %rcx, RXOR;
 	movq %rsi, RDST;
 	movq %rdx, RIO;
@@ -461,14 +461,14 @@ ENTRY(__camellia_enc_blk_2way)
 
 	enc_outunpack2(mov, RT2);
 
-	movq RRBP, %rbp;
+	movq RR12, %r12;
 	popq %rbx;
 	ret;
 
 .L__enc2_xor:
 	enc_outunpack2(xor, RT2);
 
-	movq RRBP, %rbp;
+	movq RR12, %r12;
 	popq %rbx;
 	ret;
 ENDPROC(__camellia_enc_blk_2way)
@@ -485,7 +485,7 @@ ENTRY(camellia_dec_blk_2way)
 	cmovel RXORd, RT2d; /* max */
 
 	movq %rbx, RXOR;
-	movq %rbp, RRBP;
+	movq %r12, RR12;
 	movq %rsi, RDST;
 	movq %rdx, RIO;
 
@@ -508,7 +508,7 @@ ENTRY(camellia_dec_blk_2way)
 
 	dec_outunpack2();
 
-	movq RRBP, %rbp;
+	movq RR12, %r12;
 	movq RXOR, %rbx;
 	ret;
 ENDPROC(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index b4a8806234ea..86107c961bb4 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -47,7 +47,7 @@
 /**********************************************************************
   16-way AVX cast5
  **********************************************************************/
-#define CTX %rdi
+#define CTX %r15
 
 #define RL1 %xmm0
 #define RR1 %xmm1
@@ -70,8 +70,8 @@
 
 #define RTMP %xmm15
 
-#define RID1  %rbp
-#define RID1d %ebp
+#define RID1  %rdi
+#define RID1d %edi
 #define RID2  %rsi
 #define RID2d %esi
 
@@ -226,7 +226,7 @@
 .align 16
 __cast5_enc_blk16:
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	RL1: blocks 1 and 2
 	 *	RR1: blocks 3 and 4
 	 *	RL2: blocks 5 and 6
@@ -246,9 +246,11 @@ __cast5_enc_blk16:
 	 *	RR4: encrypted blocks 15 and 16
 	 */
 
-	pushq %rbp;
+	pushq %r15;
 	pushq %rbx;
 
+	movq %rdi, CTX;
+
 	vmovdqa .Lbswap_mask, RKM;
 	vmovd .Lfirst_mask, R1ST;
 	vmovd .L32_mask, R32;
@@ -283,7 +285,7 @@ __cast5_enc_blk16:
 
 .L__skip_enc:
 	popq %rbx;
-	popq %rbp;
+	popq %r15;
 
 	vmovdqa .Lbswap_mask, RKM;
 
@@ -298,7 +300,7 @@ ENDPROC(__cast5_enc_blk16)
 .align 16
 __cast5_dec_blk16:
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	RL1: encrypted blocks 1 and 2
 	 *	RR1: encrypted blocks 3 and 4
 	 *	RL2: encrypted blocks 5 and 6
@@ -318,9 +320,11 @@ __cast5_dec_blk16:
 	 *	RR4: decrypted blocks 15 and 16
 	 */
 
-	pushq %rbp;
+	pushq %r15;
 	pushq %rbx;
 
+	movq %rdi, CTX;
+
 	vmovdqa .Lbswap_mask, RKM;
 	vmovd .Lfirst_mask, R1ST;
 	vmovd .L32_mask, R32;
@@ -356,7 +360,7 @@ __cast5_dec_blk16:
 
 	vmovdqa .Lbswap_mask, RKM;
 	popq %rbx;
-	popq %rbp;
+	popq %r15;
 
 	outunpack_blocks(RR1, RL1, RTMP, RX, RKM);
 	outunpack_blocks(RR2, RL2, RTMP, RX, RKM);
@@ -372,12 +376,14 @@ ENDPROC(__cast5_dec_blk16)
 
 ENTRY(cast5_ecb_enc_16way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
 	FRAME_BEGIN
+	pushq %r15;
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 
 	vmovdqu (0*4*4)(%rdx), RL1;
@@ -400,18 +406,22 @@ ENTRY(cast5_ecb_enc_16way)
 	vmovdqu RR4, (6*4*4)(%r11);
 	vmovdqu RL4, (7*4*4)(%r11);
 
+	popq %r15;
 	FRAME_END
 	ret;
 ENDPROC(cast5_ecb_enc_16way)
 
 ENTRY(cast5_ecb_dec_16way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
 
 	FRAME_BEGIN
+	pushq %r15;
+
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 
 	vmovdqu (0*4*4)(%rdx), RL1;
@@ -434,20 +444,22 @@ ENTRY(cast5_ecb_dec_16way)
 	vmovdqu RR4, (6*4*4)(%r11);
 	vmovdqu RL4, (7*4*4)(%r11);
 
+	popq %r15;
 	FRAME_END
 	ret;
 ENDPROC(cast5_ecb_dec_16way)
 
 ENTRY(cast5_cbc_dec_16way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
 	FRAME_BEGIN
-
 	pushq %r12;
+	pushq %r15;
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 	movq %rdx, %r12;
 
@@ -483,23 +495,24 @@ ENTRY(cast5_cbc_dec_16way)
 	vmovdqu RR4, (6*16)(%r11);
 	vmovdqu RL4, (7*16)(%r11);
 
+	popq %r15;
 	popq %r12;
-
 	FRAME_END
 	ret;
 ENDPROC(cast5_cbc_dec_16way)
 
 ENTRY(cast5_ctr_16way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 *	%rcx: iv (big endian, 64bit)
 	 */
 	FRAME_BEGIN
-
 	pushq %r12;
+	pushq %r15;
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 	movq %rdx, %r12;
 
@@ -558,8 +571,8 @@ ENTRY(cast5_ctr_16way)
 	vmovdqu RR4, (6*16)(%r11);
 	vmovdqu RL4, (7*16)(%r11);
 
+	popq %r15;
 	popq %r12;
-
 	FRAME_END
 	ret;
 ENDPROC(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
index 952d3156a933..7f30b6f0d72c 100644
--- a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -47,7 +47,7 @@
 /**********************************************************************
   8-way AVX cast6
  **********************************************************************/
-#define CTX %rdi
+#define CTX %r15
 
 #define RA1 %xmm0
 #define RB1 %xmm1
@@ -70,8 +70,8 @@
 
 #define RTMP %xmm15
 
-#define RID1  %rbp
-#define RID1d %ebp
+#define RID1  %rdi
+#define RID1d %edi
 #define RID2  %rsi
 #define RID2d %esi
 
@@ -264,15 +264,17 @@
 .align 8
 __cast6_enc_blk8:
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
 	 * output:
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
 	 */
 
-	pushq %rbp;
+	pushq %r15;
 	pushq %rbx;
 
+	movq %rdi, CTX;
+
 	vmovdqa .Lbswap_mask, RKM;
 	vmovd .Lfirst_mask, R1ST;
 	vmovd .L32_mask, R32;
@@ -297,7 +299,7 @@ __cast6_enc_blk8:
 	QBAR(11);
 
 	popq %rbx;
-	popq %rbp;
+	popq %r15;
 
 	vmovdqa .Lbswap_mask, RKM;
 
@@ -310,15 +312,17 @@ ENDPROC(__cast6_enc_blk8)
 .align 8
 __cast6_dec_blk8:
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
 	 * output:
 	 *	RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks
 	 */
 
-	pushq %rbp;
+	pushq %r15;
 	pushq %rbx;
 
+	movq %rdi, CTX;
+
 	vmovdqa .Lbswap_mask, RKM;
 	vmovd .Lfirst_mask, R1ST;
 	vmovd .L32_mask, R32;
@@ -343,7 +347,7 @@ __cast6_dec_blk8:
 	QBAR(0);
 
 	popq %rbx;
-	popq %rbp;
+	popq %r15;
 
 	vmovdqa .Lbswap_mask, RKM;
 	outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
@@ -354,12 +358,14 @@ ENDPROC(__cast6_dec_blk8)
 
 ENTRY(cast6_ecb_enc_8way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
 	FRAME_BEGIN
+	pushq %r15;
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 
 	load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
@@ -368,18 +374,21 @@ ENTRY(cast6_ecb_enc_8way)
 
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	popq %r15;
 	FRAME_END
 	ret;
 ENDPROC(cast6_ecb_enc_8way)
 
 ENTRY(cast6_ecb_dec_8way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
 	FRAME_BEGIN
+	pushq %r15;
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 
 	load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
@@ -388,20 +397,22 @@ ENTRY(cast6_ecb_dec_8way)
 
 	store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	popq %r15;
 	FRAME_END
 	ret;
 ENDPROC(cast6_ecb_dec_8way)
 
 ENTRY(cast6_cbc_dec_8way)
 	/* input:
-	 *	%rdi: ctx, CTX
+	 *	%rdi: ctx
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
 	FRAME_BEGIN
-
 	pushq %r12;
+	pushq %r15;
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 	movq %rdx, %r12;
 
@@ -411,8 +422,8 @@ ENTRY(cast6_cbc_dec_8way)
 
 	store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	popq %r15;
 	popq %r12;
-
 	FRAME_END
 	ret;
 ENDPROC(cast6_cbc_dec_8way)
@@ -425,9 +436,10 @@ ENTRY(cast6_ctr_8way)
 	 *	%rcx: iv (little endian, 128bit)
 	 */
 	FRAME_BEGIN
-
 	pushq %r12;
+	pushq %r15
 
+	movq %rdi, CTX;
 	movq %rsi, %r11;
 	movq %rdx, %r12;
 
@@ -438,8 +450,8 @@ ENTRY(cast6_ctr_8way)
 
 	store_ctr_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	popq %r15;
 	popq %r12;
-
 	FRAME_END
 	ret;
 ENDPROC(cast6_ctr_8way)
@@ -452,7 +464,9 @@ ENTRY(cast6_xts_enc_8way)
 	 *	%rcx: iv (t ⊕ α� ∈ GF(2¹²�))
 	 */
 	FRAME_BEGIN
+	pushq %r15;
 
+	movq %rdi, CTX
 	movq %rsi, %r11;
 
 	/* regs <= src, dst <= IVs, regs <= regs xor IVs */
@@ -464,6 +478,7 @@ ENTRY(cast6_xts_enc_8way)
 	/* dst <= regs xor IVs(in dst) */
 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	popq %r15;
 	FRAME_END
 	ret;
 ENDPROC(cast6_xts_enc_8way)
@@ -476,7 +491,9 @@ ENTRY(cast6_xts_dec_8way)
 	 *	%rcx: iv (t ⊕ α� ∈ GF(2¹²�))
 	 */
 	FRAME_BEGIN
+	pushq %r15;
 
+	movq %rdi, CTX
 	movq %rsi, %r11;
 
 	/* regs <= src, dst <= IVs, regs <= regs xor IVs */
@@ -488,6 +505,7 @@ ENTRY(cast6_xts_dec_8way)
 	/* dst <= regs xor IVs(in dst) */
 	store_xts_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
 
+	popq %r15;
 	FRAME_END
 	ret;
 ENDPROC(cast6_xts_dec_8way)
diff --git a/arch/x86/crypto/chacha20-avx2-x86_64.S b/arch/x86/crypto/chacha20-avx2-x86_64.S
index 3a2dc3dc6cac..f3cd26f48332 100644
--- a/arch/x86/crypto/chacha20-avx2-x86_64.S
+++ b/arch/x86/crypto/chacha20-avx2-x86_64.S
@@ -45,7 +45,7 @@ ENTRY(chacha20_8block_xor_avx2)
 
 	vzeroupper
 	# 4 * 32 byte stack, 32-byte aligned
-	mov		%rsp, %r8
+	lea		8(%rsp),%r10
 	and		$~31, %rsp
 	sub		$0x80, %rsp
 
@@ -443,6 +443,6 @@ ENTRY(chacha20_8block_xor_avx2)
 	vmovdqu		%ymm15,0x01e0(%rsi)
 
 	vzeroupper
-	mov		%r8,%rsp
+	lea		-8(%r10),%rsp
 	ret
 ENDPROC(chacha20_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha20-ssse3-x86_64.S b/arch/x86/crypto/chacha20-ssse3-x86_64.S
index 3f511a7d73b8..512a2b500fd1 100644
--- a/arch/x86/crypto/chacha20-ssse3-x86_64.S
+++ b/arch/x86/crypto/chacha20-ssse3-x86_64.S
@@ -160,7 +160,7 @@ ENTRY(chacha20_4block_xor_ssse3)
 	# done with the slightly better performing SSSE3 byte shuffling,
 	# 7/12-bit word rotation uses traditional shift+OR.
 
-	mov		%rsp,%r11
+	lea		8(%rsp),%r10
 	sub		$0x80,%rsp
 	and		$~63,%rsp
 
@@ -625,6 +625,6 @@ ENTRY(chacha20_4block_xor_ssse3)
 	pxor		%xmm1,%xmm15
 	movdqu		%xmm15,0xf0(%rsi)
 
-	mov		%r11,%rsp
+	lea		-8(%r10),%rsp
 	ret
 ENDPROC(chacha20_4block_xor_ssse3)
diff --git a/arch/x86/crypto/crc32-pclmul_asm.S b/arch/x86/crypto/crc32-pclmul_asm.S
index f247304299a2..1c099dc08cc3 100644
--- a/arch/x86/crypto/crc32-pclmul_asm.S
+++ b/arch/x86/crypto/crc32-pclmul_asm.S
@@ -41,6 +41,7 @@
 #include <asm/inst.h>
 
 
+.section .rodata
 .align 16
 /*
  * [x4*128+32 mod P(x) << 32)]'  << 1   = 0x154442bd4
@@ -111,19 +112,13 @@ ENTRY(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
 	pxor    CONSTANT, %xmm1
 	sub     $0x40, LEN
 	add     $0x40, BUF
-#ifndef __x86_64__
-	/* This is for position independent code(-fPIC) support for 32bit */
-	call    delta
-delta:
-	pop     %ecx
-#endif
 	cmp     $0x40, LEN
 	jb      less_64
 
 #ifdef __x86_64__
 	movdqa .Lconstant_R2R1(%rip), CONSTANT
 #else
-	movdqa .Lconstant_R2R1 - delta(%ecx), CONSTANT
+	movdqa .Lconstant_R2R1, CONSTANT
 #endif
 
 loop_64:/*  64 bytes Full cache line folding */
@@ -172,7 +167,7 @@ less_64:/*  Folding cache line into 128bit */
 #ifdef __x86_64__
 	movdqa  .Lconstant_R4R3(%rip), CONSTANT
 #else
-	movdqa  .Lconstant_R4R3 - delta(%ecx), CONSTANT
+	movdqa  .Lconstant_R4R3, CONSTANT
 #endif
 	prefetchnta     (BUF)
 
@@ -220,8 +215,8 @@ fold_64:
 	movdqa  .Lconstant_R5(%rip), CONSTANT
 	movdqa  .Lconstant_mask32(%rip), %xmm3
 #else
-	movdqa  .Lconstant_R5 - delta(%ecx), CONSTANT
-	movdqa  .Lconstant_mask32 - delta(%ecx), %xmm3
+	movdqa  .Lconstant_R5, CONSTANT
+	movdqa  .Lconstant_mask32, %xmm3
 #endif
 	psrldq  $0x04, %xmm2
 	pand    %xmm3, %xmm1
@@ -232,7 +227,7 @@ fold_64:
 #ifdef __x86_64__
 	movdqa  .Lconstant_RUpoly(%rip), CONSTANT
 #else
-	movdqa  .Lconstant_RUpoly - delta(%ecx), CONSTANT
+	movdqa  .Lconstant_RUpoly, CONSTANT
 #endif
 	movdqa  %xmm1, %xmm2
 	pand    %xmm3, %xmm1
diff --git a/arch/x86/crypto/des3_ede-asm_64.S b/arch/x86/crypto/des3_ede-asm_64.S
index f3e91647ca27..8e49ce117494 100644
--- a/arch/x86/crypto/des3_ede-asm_64.S
+++ b/arch/x86/crypto/des3_ede-asm_64.S
@@ -64,12 +64,12 @@
 #define RW2bh %ch
 
 #define RT0 %r15
-#define RT1 %rbp
+#define RT1 %rsi
 #define RT2 %r14
 #define RT3 %rdx
 
 #define RT0d %r15d
-#define RT1d %ebp
+#define RT1d %esi
 #define RT2d %r14d
 #define RT3d %edx
 
@@ -177,13 +177,14 @@ ENTRY(des3_ede_x86_64_crypt_blk)
 	 *	%rsi: dst
 	 *	%rdx: src
 	 */
-	pushq %rbp;
 	pushq %rbx;
 	pushq %r12;
 	pushq %r13;
 	pushq %r14;
 	pushq %r15;
 
+	pushq %rsi; /* dst */
+
 	read_block(%rdx, RL0, RR0);
 	initial_permutation(RL0, RR0);
 
@@ -241,6 +242,8 @@ ENTRY(des3_ede_x86_64_crypt_blk)
 	round1(32+15, RL0, RR0, dummy2);
 
 	final_permutation(RR0, RL0);
+
+	popq %rsi /* dst */
 	write_block(%rsi, RR0, RL0);
 
 	popq %r15;
@@ -248,7 +251,6 @@ ENTRY(des3_ede_x86_64_crypt_blk)
 	popq %r13;
 	popq %r12;
 	popq %rbx;
-	popq %rbp;
 
 	ret;
 ENDPROC(des3_ede_x86_64_crypt_blk)
@@ -432,13 +434,14 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
 	 *	%rdx: src (3 blocks)
 	 */
 
-	pushq %rbp;
 	pushq %rbx;
 	pushq %r12;
 	pushq %r13;
 	pushq %r14;
 	pushq %r15;
 
+	pushq %rsi /* dst */
+
 	/* load input */
 	movl 0 * 4(%rdx), RL0d;
 	movl 1 * 4(%rdx), RR0d;
@@ -520,6 +523,7 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
 	bswapl RR2d;
 	bswapl RL2d;
 
+	popq %rsi /* dst */
 	movl RR0d, 0 * 4(%rsi);
 	movl RL0d, 1 * 4(%rsi);
 	movl RR1d, 2 * 4(%rsi);
@@ -532,7 +536,6 @@ ENTRY(des3_ede_x86_64_crypt_blk_3way)
 	popq %r13;
 	popq %r12;
 	popq %rbx;
-	popq %rbp;
 
 	ret;
 ENDPROC(des3_ede_x86_64_crypt_blk_3way)
diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
index 9279e0b2d60e..10db30d58006 100644
--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
+++ b/arch/x86/crypto/salsa20-x86_64-asm_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 # enter salsa20_encrypt_bytes
diff --git a/arch/x86/crypto/sha1-mb/Makefile b/arch/x86/crypto/sha1-mb/Makefile
index 2e14acc3da25..815ded3ba90e 100644
--- a/arch/x86/crypto/sha1-mb/Makefile
+++ b/arch/x86/crypto/sha1-mb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific CryptoAPI modules.
 #
diff --git a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S
index 93b945597ecf..7cfba738f104 100644
--- a/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S
+++ b/arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S
@@ -157,8 +157,8 @@ LABEL skip_ %I
 .endr
 
 	# Find min length
-	vmovdqa _lens+0*16(state), %xmm0
-	vmovdqa _lens+1*16(state), %xmm1
+	vmovdqu _lens+0*16(state), %xmm0
+	vmovdqu _lens+1*16(state), %xmm1
 
 	vpminud %xmm1, %xmm0, %xmm2     # xmm2 has {D,C,B,A}
 	vpalignr $8, %xmm2, %xmm3, %xmm3   # xmm3 has {x,x,D,C}
@@ -178,8 +178,8 @@ LABEL skip_ %I
 	vpsubd  %xmm2, %xmm0, %xmm0
 	vpsubd  %xmm2, %xmm1, %xmm1
 
-	vmovdqa %xmm0, _lens+0*16(state)
-	vmovdqa %xmm1, _lens+1*16(state)
+	vmovdqu %xmm0, _lens+0*16(state)
+	vmovdqu %xmm1, _lens+1*16(state)
 
 	# "state" and "args" are the same address, arg1
 	# len is arg2
@@ -235,8 +235,8 @@ ENTRY(sha1_mb_mgr_get_comp_job_avx2)
 	jc      .return_null
 
 	# Find min length
-	vmovdqa _lens(state), %xmm0
-	vmovdqa _lens+1*16(state), %xmm1
+	vmovdqu _lens(state), %xmm0
+	vmovdqu _lens+1*16(state), %xmm1
 
 	vpminud %xmm1, %xmm0, %xmm2        # xmm2 has {D,C,B,A}
 	vpalignr $8, %xmm2, %xmm3, %xmm3   # xmm3 has {x,x,D,C}
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
index 1eab79c9ac48..9f712a7dfd79 100644
--- a/arch/x86/crypto/sha1_avx2_x86_64_asm.S
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -89,7 +89,7 @@
 #define	REG_RE	%rdx
 #define	REG_RTA	%r12
 #define	REG_RTB	%rbx
-#define	REG_T1	%ebp
+#define	REG_T1	%r11d
 #define	xmm_mov	vmovups
 #define	avx2_zeroupper	vzeroupper
 #define	RND_F1	1
@@ -637,7 +637,6 @@ _loop3:
 	ENTRY(\name)
 
 	push	%rbx
-	push	%rbp
 	push	%r12
 	push	%r13
 	push	%r14
@@ -673,7 +672,6 @@ _loop3:
 	pop	%r14
 	pop	%r13
 	pop	%r12
-	pop	%rbp
 	pop	%rbx
 
 	ret
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
index a4109506a5e8..6204bd53528c 100644
--- a/arch/x86/crypto/sha1_ssse3_asm.S
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -37,7 +37,7 @@
 #define REG_A	%ecx
 #define REG_B	%esi
 #define REG_C	%edi
-#define REG_D	%ebp
+#define REG_D	%r12d
 #define REG_E	%edx
 
 #define REG_T1	%eax
@@ -74,10 +74,10 @@
 	ENTRY(\name)
 
 	push	%rbx
-	push	%rbp
 	push	%r12
+	push	%rbp
+	mov	%rsp, %rbp
 
-	mov	%rsp, %r12
 	sub	$64, %rsp		# allocate workspace
 	and	$~15, %rsp		# align stack
 
@@ -99,10 +99,9 @@
 	xor	%rax, %rax
 	rep stosq
 
-	mov	%r12, %rsp		# deallocate workspace
-
-	pop	%r12
+	mov	%rbp, %rsp		# deallocate workspace
 	pop	%rbp
+	pop	%r12
 	pop	%rbx
 	ret
 
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
index e08888a1a5f2..001bbcf93c79 100644
--- a/arch/x86/crypto/sha256-avx-asm.S
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -103,7 +103,7 @@ SRND = %rsi       # clobbers INP
 c = %ecx
 d = %r8d
 e = %edx
-TBL = %rbp
+TBL = %r12
 a = %eax
 b = %ebx
 
@@ -350,13 +350,13 @@ a = TMP_
 ENTRY(sha256_transform_avx)
 .align 32
 	pushq   %rbx
-	pushq   %rbp
+	pushq   %r12
 	pushq   %r13
 	pushq   %r14
 	pushq   %r15
-	pushq   %r12
+	pushq	%rbp
+	movq	%rsp, %rbp
 
-	mov	%rsp, %r12
 	subq    $STACK_SIZE, %rsp	# allocate stack space
 	and	$~15, %rsp		# align stack pointer
 
@@ -452,13 +452,12 @@ loop2:
 
 done_hash:
 
-	mov	%r12, %rsp
-
-	popq	%r12
+	mov	%rbp, %rsp
+	popq	%rbp
 	popq    %r15
 	popq    %r14
 	popq    %r13
-	popq    %rbp
+	popq	%r12
 	popq    %rbx
 	ret
 ENDPROC(sha256_transform_avx)
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
index 89c8f09787d2..1420db15dcdd 100644
--- a/arch/x86/crypto/sha256-avx2-asm.S
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -98,8 +98,6 @@ d	= %r8d
 e       = %edx	# clobbers NUM_BLKS
 y3	= %esi	# clobbers INP
 
-
-TBL	= %rbp
 SRND	= CTX	# SRND is same register as CTX
 
 a = %eax
@@ -531,7 +529,6 @@ STACK_SIZE	= _RSP      + _RSP_SIZE
 ENTRY(sha256_transform_rorx)
 .align 32
 	pushq	%rbx
-	pushq	%rbp
 	pushq	%r12
 	pushq	%r13
 	pushq	%r14
@@ -568,8 +565,6 @@ ENTRY(sha256_transform_rorx)
 	mov	CTX, _CTX(%rsp)
 
 loop0:
-	lea     K256(%rip), TBL
-
 	## Load first 16 dwords from two blocks
 	VMOVDQ	0*32(INP),XTMP0
 	VMOVDQ	1*32(INP),XTMP1
@@ -597,19 +592,19 @@ last_block_enter:
 
 .align 16
 loop1:
-	vpaddd	0*32(TBL, SRND), X0, XFER
+	vpaddd	K256+0*32(SRND), X0, XFER
 	vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
 	FOUR_ROUNDS_AND_SCHED	_XFER + 0*32
 
-	vpaddd	1*32(TBL, SRND), X0, XFER
+	vpaddd	K256+1*32(SRND), X0, XFER
 	vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
 	FOUR_ROUNDS_AND_SCHED	_XFER + 1*32
 
-	vpaddd	2*32(TBL, SRND), X0, XFER
+	vpaddd	K256+2*32(SRND), X0, XFER
 	vmovdqa XFER, 2*32+_XFER(%rsp, SRND)
 	FOUR_ROUNDS_AND_SCHED	_XFER + 2*32
 
-	vpaddd	3*32(TBL, SRND), X0, XFER
+	vpaddd	K256+3*32(SRND), X0, XFER
 	vmovdqa XFER, 3*32+_XFER(%rsp, SRND)
 	FOUR_ROUNDS_AND_SCHED	_XFER + 3*32
 
@@ -619,10 +614,11 @@ loop1:
 
 loop2:
 	## Do last 16 rounds with no scheduling
-	vpaddd	0*32(TBL, SRND), X0, XFER
+	vpaddd	K256+0*32(SRND), X0, XFER
 	vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
 	DO_4ROUNDS	_XFER + 0*32
-	vpaddd	1*32(TBL, SRND), X1, XFER
+
+	vpaddd	K256+1*32(SRND), X1, XFER
 	vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
 	DO_4ROUNDS	_XFER + 1*32
 	add	$2*32, SRND
@@ -676,9 +672,6 @@ loop3:
 	ja	done_hash
 
 do_last_block:
-	#### do last block
-	lea	K256(%rip), TBL
-
 	VMOVDQ	0*16(INP),XWORD0
 	VMOVDQ	1*16(INP),XWORD1
 	VMOVDQ	2*16(INP),XWORD2
@@ -718,7 +711,6 @@ done_hash:
 	popq	%r14
 	popq	%r13
 	popq	%r12
-	popq	%rbp
 	popq	%rbx
 	ret
 ENDPROC(sha256_transform_rorx)
diff --git a/arch/x86/crypto/sha256-mb/Makefile b/arch/x86/crypto/sha256-mb/Makefile
index 45b4fca6c4a8..53ad6e7db747 100644
--- a/arch/x86/crypto/sha256-mb/Makefile
+++ b/arch/x86/crypto/sha256-mb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific CryptoAPI modules.
 #
diff --git a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S
index 8fe6338bcc84..16c4ccb1f154 100644
--- a/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S
+++ b/arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S
@@ -155,8 +155,8 @@ LABEL skip_ %I
 .endr
 
 	# Find min length
-	vmovdqa _lens+0*16(state), %xmm0
-	vmovdqa _lens+1*16(state), %xmm1
+	vmovdqu _lens+0*16(state), %xmm0
+	vmovdqu _lens+1*16(state), %xmm1
 
 	vpminud %xmm1, %xmm0, %xmm2		# xmm2 has {D,C,B,A}
 	vpalignr $8, %xmm2, %xmm3, %xmm3	# xmm3 has {x,x,D,C}
@@ -176,8 +176,8 @@ LABEL skip_ %I
 	vpsubd	%xmm2, %xmm0, %xmm0
 	vpsubd	%xmm2, %xmm1, %xmm1
 
-	vmovdqa	%xmm0, _lens+0*16(state)
-	vmovdqa	%xmm1, _lens+1*16(state)
+	vmovdqu	%xmm0, _lens+0*16(state)
+	vmovdqu	%xmm1, _lens+1*16(state)
 
 	# "state" and "args" are the same address, arg1
 	# len is arg2
@@ -234,8 +234,8 @@ ENTRY(sha256_mb_mgr_get_comp_job_avx2)
 	jc	.return_null
 
 	# Find min length
-	vmovdqa	_lens(state), %xmm0
-	vmovdqa	_lens+1*16(state), %xmm1
+	vmovdqu	_lens(state), %xmm0
+	vmovdqu	_lens+1*16(state), %xmm1
 
 	vpminud	%xmm1, %xmm0, %xmm2		# xmm2 has {D,C,B,A}
 	vpalignr $8, %xmm2, %xmm3, %xmm3	# xmm3 has {x,x,D,C}
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
index 39b83c93e7fd..c6c05ed2c16a 100644
--- a/arch/x86/crypto/sha256-ssse3-asm.S
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -95,7 +95,7 @@ SRND = %rsi       # clobbers INP
 c = %ecx
 d = %r8d
 e = %edx
-TBL = %rbp
+TBL = %r12
 a = %eax
 b = %ebx
 
@@ -356,13 +356,13 @@ a = TMP_
 ENTRY(sha256_transform_ssse3)
 .align 32
 	pushq   %rbx
-	pushq   %rbp
+	pushq   %r12
 	pushq   %r13
 	pushq   %r14
 	pushq   %r15
-	pushq   %r12
+	pushq   %rbp
+	mov	%rsp, %rbp
 
-	mov	%rsp, %r12
 	subq    $STACK_SIZE, %rsp
 	and	$~15, %rsp
 
@@ -462,13 +462,12 @@ loop2:
 
 done_hash:
 
-	mov	%r12, %rsp
-
-	popq    %r12
+	mov	%rbp, %rsp
+	popq	%rbp
 	popq    %r15
 	popq    %r14
 	popq    %r13
-	popq    %rbp
+	popq    %r12
 	popq    %rbx
 
 	ret
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
index 7f5f6c6ec72e..b16d56005162 100644
--- a/arch/x86/crypto/sha512-avx2-asm.S
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -69,8 +69,9 @@ XFER  = YTMP0
 
 BYTE_FLIP_MASK  = %ymm9
 
-# 1st arg
-CTX         = %rdi
+# 1st arg is %rdi, which is saved to the stack and accessed later via %r12
+CTX1        = %rdi
+CTX2        = %r12
 # 2nd arg
 INP         = %rsi
 # 3rd arg
@@ -81,7 +82,7 @@ d           = %r8
 e           = %rdx
 y3          = %rsi
 
-TBL   = %rbp
+TBL   = %rdi # clobbers CTX1
 
 a     = %rax
 b     = %rbx
@@ -91,26 +92,26 @@ g     = %r10
 h     = %r11
 old_h = %r11
 
-T1    = %r12
+T1    = %r12 # clobbers CTX2
 y0    = %r13
 y1    = %r14
 y2    = %r15
 
-y4    = %r12
-
 # Local variables (stack frame)
 XFER_SIZE = 4*8
 SRND_SIZE = 1*8
 INP_SIZE = 1*8
 INPEND_SIZE = 1*8
+CTX_SIZE = 1*8
 RSPSAVE_SIZE = 1*8
-GPRSAVE_SIZE = 6*8
+GPRSAVE_SIZE = 5*8
 
 frame_XFER = 0
 frame_SRND = frame_XFER + XFER_SIZE
 frame_INP = frame_SRND + SRND_SIZE
 frame_INPEND = frame_INP + INP_SIZE
-frame_RSPSAVE = frame_INPEND + INPEND_SIZE
+frame_CTX = frame_INPEND + INPEND_SIZE
+frame_RSPSAVE = frame_CTX + CTX_SIZE
 frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE
 frame_size = frame_GPRSAVE + GPRSAVE_SIZE
 
@@ -576,12 +577,11 @@ ENTRY(sha512_transform_rorx)
 	mov	%rax, frame_RSPSAVE(%rsp)
 
 	# Save GPRs
-	mov	%rbp, frame_GPRSAVE(%rsp)
-	mov	%rbx, 8*1+frame_GPRSAVE(%rsp)
-	mov	%r12, 8*2+frame_GPRSAVE(%rsp)
-	mov	%r13, 8*3+frame_GPRSAVE(%rsp)
-	mov	%r14, 8*4+frame_GPRSAVE(%rsp)
-	mov	%r15, 8*5+frame_GPRSAVE(%rsp)
+	mov	%rbx, 8*0+frame_GPRSAVE(%rsp)
+	mov	%r12, 8*1+frame_GPRSAVE(%rsp)
+	mov	%r13, 8*2+frame_GPRSAVE(%rsp)
+	mov	%r14, 8*3+frame_GPRSAVE(%rsp)
+	mov	%r15, 8*4+frame_GPRSAVE(%rsp)
 
 	shl	$7, NUM_BLKS	# convert to bytes
 	jz	done_hash
@@ -589,14 +589,17 @@ ENTRY(sha512_transform_rorx)
 	mov	NUM_BLKS, frame_INPEND(%rsp)
 
 	## load initial digest
-	mov	8*0(CTX),a
-	mov	8*1(CTX),b
-	mov	8*2(CTX),c
-	mov	8*3(CTX),d
-	mov	8*4(CTX),e
-	mov	8*5(CTX),f
-	mov	8*6(CTX),g
-	mov	8*7(CTX),h
+	mov	8*0(CTX1), a
+	mov	8*1(CTX1), b
+	mov	8*2(CTX1), c
+	mov	8*3(CTX1), d
+	mov	8*4(CTX1), e
+	mov	8*5(CTX1), f
+	mov	8*6(CTX1), g
+	mov	8*7(CTX1), h
+
+	# save %rdi (CTX) before it gets clobbered
+	mov	%rdi, frame_CTX(%rsp)
 
 	vmovdqa	PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
 
@@ -652,14 +655,15 @@ loop2:
 	subq	$1, frame_SRND(%rsp)
 	jne	loop2
 
-	addm	8*0(CTX),a
-	addm	8*1(CTX),b
-	addm	8*2(CTX),c
-	addm	8*3(CTX),d
-	addm	8*4(CTX),e
-	addm	8*5(CTX),f
-	addm	8*6(CTX),g
-	addm	8*7(CTX),h
+	mov	frame_CTX(%rsp), CTX2
+	addm	8*0(CTX2), a
+	addm	8*1(CTX2), b
+	addm	8*2(CTX2), c
+	addm	8*3(CTX2), d
+	addm	8*4(CTX2), e
+	addm	8*5(CTX2), f
+	addm	8*6(CTX2), g
+	addm	8*7(CTX2), h
 
 	mov	frame_INP(%rsp), INP
 	add	$128, INP
@@ -669,12 +673,11 @@ loop2:
 done_hash:
 
 # Restore GPRs
-	mov	frame_GPRSAVE(%rsp)     ,%rbp
-	mov	8*1+frame_GPRSAVE(%rsp) ,%rbx
-	mov	8*2+frame_GPRSAVE(%rsp) ,%r12
-	mov	8*3+frame_GPRSAVE(%rsp) ,%r13
-	mov	8*4+frame_GPRSAVE(%rsp) ,%r14
-	mov	8*5+frame_GPRSAVE(%rsp) ,%r15
+	mov	8*0+frame_GPRSAVE(%rsp), %rbx
+	mov	8*1+frame_GPRSAVE(%rsp), %r12
+	mov	8*2+frame_GPRSAVE(%rsp), %r13
+	mov	8*3+frame_GPRSAVE(%rsp), %r14
+	mov	8*4+frame_GPRSAVE(%rsp), %r15
 
 	# Restore Stack Pointer
 	mov	frame_RSPSAVE(%rsp), %rsp
diff --git a/arch/x86/crypto/sha512-mb/Makefile b/arch/x86/crypto/sha512-mb/Makefile
index 0a57e2103980..90f1ef69152e 100644
--- a/arch/x86/crypto/sha512-mb/Makefile
+++ b/arch/x86/crypto/sha512-mb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Arch-specific CryptoAPI modules.
 #
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
index b3f49d286348..73b471da3622 100644
--- a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -76,8 +76,8 @@
 #define RT %xmm14
 #define RR %xmm15
 
-#define RID1  %rbp
-#define RID1d %ebp
+#define RID1  %r13
+#define RID1d %r13d
 #define RID2  %rsi
 #define RID2d %esi
 
@@ -259,7 +259,7 @@ __twofish_enc_blk8:
 
 	vmovdqu w(CTX), RK1;
 
-	pushq %rbp;
+	pushq %r13;
 	pushq %rbx;
 	pushq %rcx;
 
@@ -282,7 +282,7 @@ __twofish_enc_blk8:
 
 	popq %rcx;
 	popq %rbx;
-	popq %rbp;
+	popq %r13;
 
 	outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
 	outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
@@ -301,7 +301,7 @@ __twofish_dec_blk8:
 
 	vmovdqu (w+4*4)(CTX), RK1;
 
-	pushq %rbp;
+	pushq %r13;
 	pushq %rbx;
 
 	inpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
@@ -322,7 +322,7 @@ __twofish_dec_blk8:
 	vmovdqu (w)(CTX), RK1;
 
 	popq %rbx;
-	popq %rbp;
+	popq %r13;
 
 	outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
 	outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
index af28a8a24366..06fc70cf5433 100644
--- a/arch/x86/entry/Makefile
+++ b/arch/x86/entry/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the x86 low level entry code
 #
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
index 640aafebdc00..3fd8bc560fae 100644
--- a/arch/x86/entry/calling.h
+++ b/arch/x86/entry/calling.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/jump_label.h>
 #include <asm/unwind_hints.h>
 
@@ -141,56 +142,25 @@ For 32-bit we have the following conventions - kernel is built with
 	UNWIND_HINT_REGS offset=\offset
 	.endm
 
-	.macro RESTORE_EXTRA_REGS offset=0
-	movq 0*8+\offset(%rsp), %r15
-	movq 1*8+\offset(%rsp), %r14
-	movq 2*8+\offset(%rsp), %r13
-	movq 3*8+\offset(%rsp), %r12
-	movq 4*8+\offset(%rsp), %rbp
-	movq 5*8+\offset(%rsp), %rbx
-	UNWIND_HINT_REGS offset=\offset extra=0
-	.endm
-
-	.macro RESTORE_C_REGS_HELPER rstor_rax=1, rstor_rcx=1, rstor_r11=1, rstor_r8910=1, rstor_rdx=1
-	.if \rstor_r11
-	movq 6*8(%rsp), %r11
-	.endif
-	.if \rstor_r8910
-	movq 7*8(%rsp), %r10
-	movq 8*8(%rsp), %r9
-	movq 9*8(%rsp), %r8
-	.endif
-	.if \rstor_rax
-	movq 10*8(%rsp), %rax
-	.endif
-	.if \rstor_rcx
-	movq 11*8(%rsp), %rcx
-	.endif
-	.if \rstor_rdx
-	movq 12*8(%rsp), %rdx
-	.endif
-	movq 13*8(%rsp), %rsi
-	movq 14*8(%rsp), %rdi
-	UNWIND_HINT_IRET_REGS offset=16*8
-	.endm
-	.macro RESTORE_C_REGS
-	RESTORE_C_REGS_HELPER 1,1,1,1,1
-	.endm
-	.macro RESTORE_C_REGS_EXCEPT_RAX
-	RESTORE_C_REGS_HELPER 0,1,1,1,1
-	.endm
-	.macro RESTORE_C_REGS_EXCEPT_RCX
-	RESTORE_C_REGS_HELPER 1,0,1,1,1
-	.endm
-	.macro RESTORE_C_REGS_EXCEPT_R11
-	RESTORE_C_REGS_HELPER 1,1,0,1,1
-	.endm
-	.macro RESTORE_C_REGS_EXCEPT_RCX_R11
-	RESTORE_C_REGS_HELPER 1,0,0,1,1
-	.endm
-
-	.macro REMOVE_PT_GPREGS_FROM_STACK addskip=0
-	subq $-(15*8+\addskip), %rsp
+	.macro POP_EXTRA_REGS
+	popq %r15
+	popq %r14
+	popq %r13
+	popq %r12
+	popq %rbp
+	popq %rbx
+	.endm
+
+	.macro POP_C_REGS
+	popq %r11
+	popq %r10
+	popq %r9
+	popq %r8
+	popq %rax
+	popq %rcx
+	popq %rdx
+	popq %rsi
+	popq %rdi
 	.endm
 
 	.macro icebp
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
index 03505ffbe1b6..d7d3cc24baf4 100644
--- a/arch/x86/entry/common.c
+++ b/arch/x86/entry/common.c
@@ -75,7 +75,7 @@ static long syscall_trace_enter(struct pt_regs *regs)
 	if (IS_ENABLED(CONFIG_DEBUG_ENTRY))
 		BUG_ON(regs != task_pt_regs(current));
 
-	work = ACCESS_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
+	work = READ_ONCE(ti->flags) & _TIF_WORK_SYSCALL_ENTRY;
 
 	if (unlikely(work & _TIF_SYSCALL_EMU))
 		emulated = true;
@@ -186,9 +186,7 @@ __visible inline void prepare_exit_to_usermode(struct pt_regs *regs)
 
 	addr_limit_user_check();
 
-	if (IS_ENABLED(CONFIG_PROVE_LOCKING) && WARN_ON(!irqs_disabled()))
-		local_irq_disable();
-
+	lockdep_assert_irqs_disabled();
 	lockdep_sys_exit();
 
 	cached_flags = READ_ONCE(ti->flags);
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
index 8a13d468635a..4838037f97f6 100644
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1991,1992  Linus Torvalds
  *
@@ -176,7 +177,7 @@
 /*
  * This is a sneaky trick to help the unwinder find pt_regs on the stack.  The
  * frame pointer is replaced with an encoded pointer to pt_regs.  The encoding
- * is just setting the LSB, which makes it an invalid stack address and is also
+ * is just clearing the MSB, which makes it an invalid stack address and is also
  * a signal to the unwinder that it's a pt_regs pointer in disguise.
  *
  * NOTE: This macro must be used *after* SAVE_ALL because it corrupts the
@@ -185,7 +186,7 @@
 .macro ENCODE_FRAME_POINTER
 #ifdef CONFIG_FRAME_POINTER
 	mov %esp, %ebp
-	orl $0x1, %ebp
+	andl $0x7fffffff, %ebp
 #endif
 .endm
 
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
index 49167258d587..a2b30ec69497 100644
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/x86_64/entry.S
  *
@@ -220,10 +221,9 @@ entry_SYSCALL_64_fastpath:
 	TRACE_IRQS_ON		/* user mode is traced as IRQs on */
 	movq	RIP(%rsp), %rcx
 	movq	EFLAGS(%rsp), %r11
-	RESTORE_C_REGS_EXCEPT_RCX_R11
-	movq	RSP(%rsp), %rsp
+	addq	$6*8, %rsp	/* skip extra regs -- they were preserved */
 	UNWIND_HINT_EMPTY
-	USERGS_SYSRET64
+	jmp	.Lpop_c_regs_except_rcx_r11_and_sysret
 
 1:
 	/*
@@ -245,17 +245,18 @@ entry_SYSCALL64_slow_path:
 	call	do_syscall_64		/* returns with IRQs disabled */
 
 return_from_SYSCALL_64:
-	RESTORE_EXTRA_REGS
 	TRACE_IRQS_IRETQ		/* we're about to change IF */
 
 	/*
 	 * Try to use SYSRET instead of IRET if we're returning to
-	 * a completely clean 64-bit userspace context.
+	 * a completely clean 64-bit userspace context.  If we're not,
+	 * go to the slow exit path.
 	 */
 	movq	RCX(%rsp), %rcx
 	movq	RIP(%rsp), %r11
-	cmpq	%rcx, %r11			/* RCX == RIP */
-	jne	opportunistic_sysret_failed
+
+	cmpq	%rcx, %r11	/* SYSRET requires RCX == RIP */
+	jne	swapgs_restore_regs_and_return_to_usermode
 
 	/*
 	 * On Intel CPUs, SYSRET with non-canonical RCX/RIP will #GP
@@ -273,14 +274,14 @@ return_from_SYSCALL_64:
 
 	/* If this changed %rcx, it was not canonical */
 	cmpq	%rcx, %r11
-	jne	opportunistic_sysret_failed
+	jne	swapgs_restore_regs_and_return_to_usermode
 
 	cmpq	$__USER_CS, CS(%rsp)		/* CS must match SYSRET */
-	jne	opportunistic_sysret_failed
+	jne	swapgs_restore_regs_and_return_to_usermode
 
 	movq	R11(%rsp), %r11
 	cmpq	%r11, EFLAGS(%rsp)		/* R11 == RFLAGS */
-	jne	opportunistic_sysret_failed
+	jne	swapgs_restore_regs_and_return_to_usermode
 
 	/*
 	 * SYSCALL clears RF when it saves RFLAGS in R11 and SYSRET cannot
@@ -301,12 +302,12 @@ return_from_SYSCALL_64:
 	 * would never get past 'stuck_here'.
 	 */
 	testq	$(X86_EFLAGS_RF|X86_EFLAGS_TF), %r11
-	jnz	opportunistic_sysret_failed
+	jnz	swapgs_restore_regs_and_return_to_usermode
 
 	/* nothing to check for RSP */
 
 	cmpq	$__USER_DS, SS(%rsp)		/* SS must match SYSRET */
-	jne	opportunistic_sysret_failed
+	jne	swapgs_restore_regs_and_return_to_usermode
 
 	/*
 	 * We win! This label is here just for ease of understanding
@@ -314,14 +315,20 @@ return_from_SYSCALL_64:
 	 */
 syscall_return_via_sysret:
 	/* rcx and r11 are already restored (see code above) */
-	RESTORE_C_REGS_EXCEPT_RCX_R11
-	movq	RSP(%rsp), %rsp
 	UNWIND_HINT_EMPTY
+	POP_EXTRA_REGS
+.Lpop_c_regs_except_rcx_r11_and_sysret:
+	popq	%rsi	/* skip r11 */
+	popq	%r10
+	popq	%r9
+	popq	%r8
+	popq	%rax
+	popq	%rsi	/* skip rcx */
+	popq	%rdx
+	popq	%rsi
+	popq	%rdi
+	movq	RSP-ORIG_RAX(%rsp), %rsp
 	USERGS_SYSRET64
-
-opportunistic_sysret_failed:
-	SWAPGS
-	jmp	restore_c_regs_and_iret
 END(entry_SYSCALL_64)
 
 ENTRY(stub_ptregs_64)
@@ -422,8 +429,7 @@ ENTRY(ret_from_fork)
 	movq	%rsp, %rdi
 	call	syscall_return_slowpath	/* returns with IRQs disabled */
 	TRACE_IRQS_ON			/* user mode is traced as IRQS on */
-	SWAPGS
-	jmp	restore_regs_and_iret
+	jmp	swapgs_restore_regs_and_return_to_usermode
 
 1:
 	/* kernel thread */
@@ -611,8 +617,21 @@ GLOBAL(retint_user)
 	mov	%rsp,%rdi
 	call	prepare_exit_to_usermode
 	TRACE_IRQS_IRETQ
+
+GLOBAL(swapgs_restore_regs_and_return_to_usermode)
+#ifdef CONFIG_DEBUG_ENTRY
+	/* Assert that pt_regs indicates user mode. */
+	testb	$3, CS(%rsp)
+	jnz	1f
+	ud2
+1:
+#endif
 	SWAPGS
-	jmp	restore_regs_and_iret
+	POP_EXTRA_REGS
+	POP_C_REGS
+	addq	$8, %rsp	/* skip regs->orig_ax */
+	INTERRUPT_RETURN
+
 
 /* Returning to kernel space */
 retint_kernel:
@@ -632,15 +651,17 @@ retint_kernel:
 	 */
 	TRACE_IRQS_IRETQ
 
-/*
- * At this label, code paths which return to kernel and to user,
- * which come from interrupts/exception and from syscalls, merge.
- */
-GLOBAL(restore_regs_and_iret)
-	RESTORE_EXTRA_REGS
-restore_c_regs_and_iret:
-	RESTORE_C_REGS
-	REMOVE_PT_GPREGS_FROM_STACK 8
+GLOBAL(restore_regs_and_return_to_kernel)
+#ifdef CONFIG_DEBUG_ENTRY
+	/* Assert that pt_regs indicates kernel mode. */
+	testb	$3, CS(%rsp)
+	jz	1f
+	ud2
+1:
+#endif
+	POP_EXTRA_REGS
+	POP_C_REGS
+	addq	$8, %rsp	/* skip regs->orig_ax */
 	INTERRUPT_RETURN
 
 ENTRY(native_iret)
@@ -808,7 +829,7 @@ apicinterrupt IRQ_WORK_VECTOR			irq_work_interrupt		smp_irq_work_interrupt
 
 .macro idtentry sym do_sym has_error_code:req paranoid=0 shift_ist=-1
 ENTRY(\sym)
-	UNWIND_HINT_IRET_REGS offset=8
+	UNWIND_HINT_IRET_REGS offset=\has_error_code*8
 
 	/* Sanity check */
 	.if \shift_ist != -1 && \paranoid == 0
@@ -817,7 +838,7 @@ ENTRY(\sym)
 
 	ASM_CLAC
 
-	.ifeq \has_error_code
+	.if \has_error_code == 0
 	pushq	$-1				/* ORIG_RAX: no syscall to restart */
 	.endif
 
@@ -1058,6 +1079,7 @@ idtentry int3			do_int3			has_error_code=0	paranoid=1 shift_ist=DEBUG_STACK
 idtentry stack_segment		do_stack_segment	has_error_code=1
 
 #ifdef CONFIG_XEN
+idtentry xennmi			do_nmi			has_error_code=0
 idtentry xendebug		do_debug		has_error_code=0
 idtentry xenint3		do_int3			has_error_code=0
 #endif
@@ -1111,17 +1133,14 @@ ENTRY(paranoid_exit)
 	DISABLE_INTERRUPTS(CLBR_ANY)
 	TRACE_IRQS_OFF_DEBUG
 	testl	%ebx, %ebx			/* swapgs needed? */
-	jnz	paranoid_exit_no_swapgs
+	jnz	.Lparanoid_exit_no_swapgs
 	TRACE_IRQS_IRETQ
 	SWAPGS_UNSAFE_STACK
-	jmp	paranoid_exit_restore
-paranoid_exit_no_swapgs:
+	jmp	.Lparanoid_exit_restore
+.Lparanoid_exit_no_swapgs:
 	TRACE_IRQS_IRETQ_DEBUG
-paranoid_exit_restore:
-	RESTORE_EXTRA_REGS
-	RESTORE_C_REGS
-	REMOVE_PT_GPREGS_FROM_STACK 8
-	INTERRUPT_RETURN
+.Lparanoid_exit_restore:
+	jmp restore_regs_and_return_to_kernel
 END(paranoid_exit)
 
 /*
@@ -1222,10 +1241,13 @@ ENTRY(error_exit)
 	jmp	retint_user
 END(error_exit)
 
-/* Runs on exception stack */
-/* XXX: broken on Xen PV */
+/*
+ * Runs on exception stack.  Xen PV does not go through this path at all,
+ * so we can use real assembly here.
+ */
 ENTRY(nmi)
 	UNWIND_HINT_IRET_REGS
+
 	/*
 	 * We allow breakpoints in NMIs. If a breakpoint occurs, then
 	 * the iretq it performs will take us out of NMI context.
@@ -1283,7 +1305,7 @@ ENTRY(nmi)
 	 * stacks lest we corrupt the "NMI executing" variable.
 	 */
 
-	SWAPGS_UNSAFE_STACK
+	swapgs
 	cld
 	movq	%rsp, %rdx
 	movq	PER_CPU_VAR(cpu_current_top_of_stack), %rsp
@@ -1327,8 +1349,7 @@ ENTRY(nmi)
 	 * Return back to user mode.  We must *not* do the normal exit
 	 * work, because we don't want to enable interrupts.
 	 */
-	SWAPGS
-	jmp	restore_regs_and_iret
+	jmp	swapgs_restore_regs_and_return_to_usermode
 
 .Lnmi_from_kernel:
 	/*
@@ -1449,7 +1470,7 @@ nested_nmi_out:
 	popq	%rdx
 
 	/* We are returning to kernel mode, so this cannot result in a fault. */
-	INTERRUPT_RETURN
+	iretq
 
 first_nmi:
 	/* Restore rdx. */
@@ -1480,7 +1501,7 @@ first_nmi:
 	pushfq			/* RFLAGS */
 	pushq	$__KERNEL_CS	/* CS */
 	pushq	$1f		/* RIP */
-	INTERRUPT_RETURN	/* continues at repeat_nmi below */
+	iretq			/* continues at repeat_nmi below */
 	UNWIND_HINT_IRET_REGS
 1:
 #endif
@@ -1543,29 +1564,34 @@ end_repeat_nmi:
 nmi_swapgs:
 	SWAPGS_UNSAFE_STACK
 nmi_restore:
-	RESTORE_EXTRA_REGS
-	RESTORE_C_REGS
+	POP_EXTRA_REGS
+	POP_C_REGS
 
-	/* Point RSP at the "iret" frame. */
-	REMOVE_PT_GPREGS_FROM_STACK 6*8
+	/*
+	 * Skip orig_ax and the "outermost" frame to point RSP at the "iret"
+	 * at the "iret" frame.
+	 */
+	addq	$6*8, %rsp
 
 	/*
 	 * Clear "NMI executing".  Set DF first so that we can easily
 	 * distinguish the remaining code between here and IRET from
-	 * the SYSCALL entry and exit paths.  On a native kernel, we
-	 * could just inspect RIP, but, on paravirt kernels,
-	 * INTERRUPT_RETURN can translate into a jump into a
-	 * hypercall page.
+	 * the SYSCALL entry and exit paths.
+	 *
+	 * We arguably should just inspect RIP instead, but I (Andy) wrote
+	 * this code when I had the misapprehension that Xen PV supported
+	 * NMIs, and Xen PV would break that approach.
 	 */
 	std
 	movq	$0, 5*8(%rsp)		/* clear "NMI executing" */
 
 	/*
-	 * INTERRUPT_RETURN reads the "iret" frame and exits the NMI
-	 * stack in a single instruction.  We are returning to kernel
-	 * mode, so this cannot result in a fault.
+	 * iretq reads the "iret" frame and exits the NMI stack in a
+	 * single instruction.  We are returning to kernel mode, so this
+	 * cannot result in a fault.  Similarly, we don't need to worry
+	 * about espfix64 on the way back to kernel mode.
 	 */
-	INTERRUPT_RETURN
+	iretq
 END(nmi)
 
 ENTRY(ignore_sysret)
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
index e26c25ca7756..568e130d932c 100644
--- a/arch/x86/entry/entry_64_compat.S
+++ b/arch/x86/entry/entry_64_compat.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Compatibility mode system call entry point for x86-64.
  *
@@ -336,8 +337,7 @@ ENTRY(entry_INT80_compat)
 
 	/* Go back to user mode. */
 	TRACE_IRQS_ON
-	SWAPGS
-	jmp	restore_regs_and_iret
+	jmp	swapgs_restore_regs_and_return_to_usermode
 END(entry_INT80_compat)
 
 ENTRY(stub32_clone)
diff --git a/arch/x86/entry/syscall_32.c b/arch/x86/entry/syscall_32.c
index 8f895ee13a1c..95c294963612 100644
--- a/arch/x86/entry/syscall_32.c
+++ b/arch/x86/entry/syscall_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* System call table for i386. */
 
 #include <linux/linkage.h>
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c
index 9dbc5abb6162..9c09775e589d 100644
--- a/arch/x86/entry/syscall_64.c
+++ b/arch/x86/entry/syscall_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* System call table for x86-64. */
 
 #include <linux/linkage.h>
diff --git a/arch/x86/entry/syscalls/Makefile b/arch/x86/entry/syscalls/Makefile
index 57aa59fd140c..6fb9b57ed5ba 100644
--- a/arch/x86/entry/syscalls/Makefile
+++ b/arch/x86/entry/syscalls/Makefile
@@ -1,5 +1,6 @@
-out := $(obj)/../../include/generated/asm
-uapi := $(obj)/../../include/generated/uapi/asm
+# SPDX-License-Identifier: GPL-2.0
+out := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
 
 # Create output directory if not already present
 _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)') \
diff --git a/arch/x86/entry/syscalls/syscallhdr.sh b/arch/x86/entry/syscalls/syscallhdr.sh
index 31fd5f1f38f7..12fbbcfe7ef3 100644
--- a/arch/x86/entry/syscalls/syscallhdr.sh
+++ b/arch/x86/entry/syscalls/syscallhdr.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 in="$1"
 out="$2"
diff --git a/arch/x86/entry/syscalls/syscalltbl.sh b/arch/x86/entry/syscalls/syscalltbl.sh
index 751d1f992630..d71ef4bd3615 100644
--- a/arch/x86/entry/syscalls/syscalltbl.sh
+++ b/arch/x86/entry/syscalls/syscalltbl.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 in="$1"
 out="$2"
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
index d5409660f5de..c366c0adeb40 100644
--- a/arch/x86/entry/vdso/Makefile
+++ b/arch/x86/entry/vdso/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Building vDSO images for x86.
 #
diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
index fa8dbfcf7ed3..11b13c4b43d5 100644
--- a/arch/x86/entry/vdso/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -318,7 +318,7 @@ int gettimeofday(struct timeval *, struct timezone *)
 notrace time_t __vdso_time(time_t *t)
 {
 	/* This is atomic on x86 so we don't need any locks. */
-	time_t result = ACCESS_ONCE(gtod->wall_time_sec);
+	time_t result = READ_ONCE(gtod->wall_time_sec);
 
 	if (t)
 		*t = result;
diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S
index 8ebb4b6454fe..acfd5ba7d943 100644
--- a/arch/x86/entry/vdso/vdso-layout.lds.S
+++ b/arch/x86/entry/vdso/vdso-layout.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/vdso.h>
 
 /*
diff --git a/arch/x86/entry/vdso/vdso.lds.S b/arch/x86/entry/vdso/vdso.lds.S
index 6807932643c2..d3a2dce4cfa9 100644
--- a/arch/x86/entry/vdso/vdso.lds.S
+++ b/arch/x86/entry/vdso/vdso.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for 64-bit vDSO.
  * We #include the file to define the layout details.
diff --git a/arch/x86/entry/vdso/vdso2c.c b/arch/x86/entry/vdso/vdso2c.c
index 0780a443a53b..4674f58581a1 100644
--- a/arch/x86/entry/vdso/vdso2c.c
+++ b/arch/x86/entry/vdso/vdso2c.c
@@ -65,6 +65,7 @@
 
 #include <linux/elf.h>
 #include <linux/types.h>
+#include <linux/kernel.h>
 
 const char *outfilename;
 
@@ -151,7 +152,7 @@ extern void bad_put_le(void);
 	PLE(x, val, 64, PLE(x, val, 32, PLE(x, val, 16, LAST_PLE(x, val))))
 
 
-#define NSYMS (sizeof(required_syms) / sizeof(required_syms[0]))
+#define NSYMS ARRAY_SIZE(required_syms)
 
 #define BITSFUNC3(name, bits, suffix) name##bits##suffix
 #define BITSFUNC2(name, bits, suffix) BITSFUNC3(name, bits, suffix)
diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h
index 3dab75f2a673..fa847a620f40 100644
--- a/arch/x86/entry/vdso/vdso2c.h
+++ b/arch/x86/entry/vdso/vdso2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is included twice from vdso2c.c.  It generates code for 32-bit
  * and 64-bit vDSOs.  We need both for 64-bit builds, since 32-bit vDSOs
diff --git a/arch/x86/entry/vdso/vdso32-setup.c b/arch/x86/entry/vdso/vdso32-setup.c
index 3f9d1a83891a..42d4c89f990e 100644
--- a/arch/x86/entry/vdso/vdso32-setup.c
+++ b/arch/x86/entry/vdso/vdso32-setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) Copyright 2002 Linus Torvalds
  * Portions based on the vdso-randomization code from exec-shield:
diff --git a/arch/x86/entry/vdso/vdso32/note.S b/arch/x86/entry/vdso/vdso32/note.S
index c83f25734696..9fd51f206314 100644
--- a/arch/x86/entry/vdso/vdso32/note.S
+++ b/arch/x86/entry/vdso/vdso32/note.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
  * Here we can supply some information useful to userland.
diff --git a/arch/x86/entry/vdso/vdso32/sigreturn.S b/arch/x86/entry/vdso/vdso32/sigreturn.S
index 20633e026e82..c3233ee98a6b 100644
--- a/arch/x86/entry/vdso/vdso32/sigreturn.S
+++ b/arch/x86/entry/vdso/vdso32/sigreturn.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/unistd_32.h>
 #include <asm/asm-offsets.h>
diff --git a/arch/x86/entry/vdso/vdso32/system_call.S b/arch/x86/entry/vdso/vdso32/system_call.S
index ed4bc9731cbb..263d7433dea8 100644
--- a/arch/x86/entry/vdso/vdso32/system_call.S
+++ b/arch/x86/entry/vdso/vdso32/system_call.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * AT_SYSINFO entry point
 */
diff --git a/arch/x86/entry/vdso/vdso32/vclock_gettime.c b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
index 87a86e017f0e..7780bbfb06ef 100644
--- a/arch/x86/entry/vdso/vdso32/vclock_gettime.c
+++ b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define BUILD_VDSO32
 
 #ifndef CONFIG_CC_OPTIMIZE_FOR_SIZE
diff --git a/arch/x86/entry/vdso/vdso32/vdso32.lds.S b/arch/x86/entry/vdso/vdso32/vdso32.lds.S
index 31056cf294bf..422764a81d32 100644
--- a/arch/x86/entry/vdso/vdso32/vdso32.lds.S
+++ b/arch/x86/entry/vdso/vdso32/vdso32.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for 32-bit vDSO.
  * We #include the file to define the layout details.
diff --git a/arch/x86/entry/vdso/vdsox32.lds.S b/arch/x86/entry/vdso/vdsox32.lds.S
index 697c11ece90c..05cd1c5c4a15 100644
--- a/arch/x86/entry/vdso/vdsox32.lds.S
+++ b/arch/x86/entry/vdso/vdsox32.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for x32 vDSO.
  * We #include the file to define the layout details.
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
index 1911310959f8..d63053142b16 100644
--- a/arch/x86/entry/vdso/vma.c
+++ b/arch/x86/entry/vdso/vma.c
@@ -114,10 +114,11 @@ static int vvar_fault(const struct vm_special_mapping *sm,
 		struct pvclock_vsyscall_time_info *pvti =
 			pvclock_pvti_cpu0_va();
 		if (pvti && vclock_was_used(VCLOCK_PVCLOCK)) {
-			ret = vm_insert_pfn(
+			ret = vm_insert_pfn_prot(
 				vma,
 				vmf->address,
-				__pa(pvti) >> PAGE_SHIFT);
+				__pa(pvti) >> PAGE_SHIFT,
+				pgprot_decrypted(vma->vm_page_prot));
 		}
 	} else if (sym_offset == image->sym_hvclock_page) {
 		struct ms_hyperv_tsc_page *tsc_pg = hv_get_tsc_page();
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
index ce1d7534fa53..f279ba2643dc 100644
--- a/arch/x86/entry/vsyscall/vsyscall_64.c
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2012-2014 Andy Lutomirski <luto@amacapital.net>
  *
diff --git a/arch/x86/entry/vsyscall/vsyscall_gtod.c b/arch/x86/entry/vsyscall/vsyscall_gtod.c
index 0fb3a104ac62..e1216dd95c04 100644
--- a/arch/x86/entry/vsyscall/vsyscall_gtod.c
+++ b/arch/x86/entry/vsyscall/vsyscall_gtod.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE
  *  Copyright 2003 Andi Kleen, SuSE Labs.
diff --git a/arch/x86/entry/vsyscall/vsyscall_trace.h b/arch/x86/entry/vsyscall/vsyscall_trace.h
index 9dd7359a38a8..3c3f9765a85c 100644
--- a/arch/x86/entry/vsyscall/vsyscall_trace.h
+++ b/arch/x86/entry/vsyscall/vsyscall_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vsyscall
 
diff --git a/arch/x86/events/Kconfig b/arch/x86/events/Kconfig
index 98397db5ceae..9a7a1446cb3a 100644
--- a/arch/x86/events/Kconfig
+++ b/arch/x86/events/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Performance monitoring"
 
 config PERF_EVENTS_INTEL_UNCORE
diff --git a/arch/x86/events/amd/Makefile b/arch/x86/events/amd/Makefile
index b1da46f396e0..fe8795a67385 100644
--- a/arch/x86/events/amd/Makefile
+++ b/arch/x86/events/amd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CPU_SUP_AMD)		+= core.o uncore.o
 obj-$(CONFIG_PERF_EVENTS_AMD_POWER)	+= power.o
 obj-$(CONFIG_X86_LOCAL_APIC)		+= ibs.o
diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c
index 3641e24fdac5..38b5d41b0c37 100644
--- a/arch/x86/events/amd/iommu.c
+++ b/arch/x86/events/amd/iommu.c
@@ -405,7 +405,7 @@ const struct attribute_group *amd_iommu_attr_groups[] = {
 	NULL,
 };
 
-static struct pmu iommu_pmu = {
+static const struct pmu iommu_pmu __initconst = {
 	.event_init	= perf_iommu_event_init,
 	.add		= perf_iommu_add,
 	.del		= perf_iommu_del,
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
index 80534d3c2480..140d33288e78 100644
--- a/arch/x86/events/core.c
+++ b/arch/x86/events/core.c
@@ -2118,7 +2118,7 @@ static int x86_pmu_event_init(struct perf_event *event)
 			event->destroy(event);
 	}
 
-	if (ACCESS_ONCE(x86_pmu.attr_rdpmc))
+	if (READ_ONCE(x86_pmu.attr_rdpmc))
 		event->hw.flags |= PERF_X86_EVENT_RDPMC_ALLOWED;
 
 	return err;
@@ -2371,7 +2371,7 @@ static unsigned long get_segment_base(unsigned int segment)
 		struct ldt_struct *ldt;
 
 		/* IRQs are off, so this synchronizes with smp_store_release */
-		ldt = lockless_dereference(current->active_mm->context.ldt);
+		ldt = READ_ONCE(current->active_mm->context.ldt);
 		if (!ldt || idx >= ldt->nr_entries)
 			return 0;
 
diff --git a/arch/x86/events/intel/Makefile b/arch/x86/events/intel/Makefile
index e9d8520a801a..3468b0c1dc7c 100644
--- a/arch/x86/events/intel/Makefile
+++ b/arch/x86/events/intel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CPU_SUP_INTEL)		+= core.o bts.o
 obj-$(CONFIG_CPU_SUP_INTEL)		+= ds.o knc.o
 obj-$(CONFIG_CPU_SUP_INTEL)		+= lbr.o p4.o p6.o pt.o
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
index 16076eb34699..141e07b06216 100644
--- a/arch/x86/events/intel/bts.c
+++ b/arch/x86/events/intel/bts.c
@@ -546,9 +546,6 @@ static int bts_event_init(struct perf_event *event)
 	if (event->attr.type != bts_pmu.type)
 		return -ENOENT;
 
-	if (x86_add_exclusive(x86_lbr_exclusive_bts))
-		return -EBUSY;
-
 	/*
 	 * BTS leaks kernel addresses even when CPL0 tracing is
 	 * disabled, so disallow intel_bts driver for unprivileged
@@ -562,6 +559,9 @@ static int bts_event_init(struct perf_event *event)
 	    !capable(CAP_SYS_ADMIN))
 		return -EACCES;
 
+	if (x86_add_exclusive(x86_lbr_exclusive_bts))
+		return -EBUSY;
+
 	ret = x86_reserve_hardware();
 	if (ret) {
 		x86_del_exclusive(x86_lbr_exclusive_bts);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
index 829e89cfcee2..43445da30cea 100644
--- a/arch/x86/events/intel/core.c
+++ b/arch/x86/events/intel/core.c
@@ -2958,6 +2958,10 @@ static unsigned long intel_pmu_free_running_flags(struct perf_event *event)
 
 	if (event->attr.use_clockid)
 		flags &= ~PERF_SAMPLE_TIME;
+	if (!event->attr.exclude_kernel)
+		flags &= ~PERF_SAMPLE_REGS_USER;
+	if (event->attr.sample_regs_user & ~PEBS_REGS)
+		flags &= ~(PERF_SAMPLE_REGS_USER | PERF_SAMPLE_REGS_INTR);
 	return flags;
 }
 
@@ -4409,10 +4413,9 @@ static __init int fixup_ht_bug(void)
 		return 0;
 	}
 
-	if (lockup_detector_suspend() != 0) {
-		pr_debug("failed to disable PMU erratum BJ122, BV98, HSD29 workaround\n");
-		return 0;
-	}
+	cpus_read_lock();
+
+	hardlockup_detector_perf_stop();
 
 	x86_pmu.flags &= ~(PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED);
 
@@ -4420,9 +4423,7 @@ static __init int fixup_ht_bug(void)
 	x86_pmu.commit_scheduling = NULL;
 	x86_pmu.stop_scheduling = NULL;
 
-	lockup_detector_resume();
-
-	cpus_read_lock();
+	hardlockup_detector_perf_restart();
 
 	for_each_online_cpu(c)
 		free_excl_cntrs(c);
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 4cf100ff2a37..72db0664a53d 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -552,6 +552,7 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
 
 	X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_MOBILE,  snb_cstates),
 	X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_DESKTOP, snb_cstates),
+	X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_X, snb_cstates),
 
 	X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_MOBILE,  snb_cstates),
 	X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_DESKTOP, snb_cstates),
@@ -560,6 +561,9 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
 	X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNM, knl_cstates),
 
 	X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT, glm_cstates),
+	X86_CSTATES_MODEL(INTEL_FAM6_ATOM_DENVERTON, glm_cstates),
+
+	X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GEMINI_LAKE, glm_cstates),
 	{ },
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
index e1965e5ff570..3674a4b6f8bd 100644
--- a/arch/x86/events/intel/ds.c
+++ b/arch/x86/events/intel/ds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/slab.h>
diff --git a/arch/x86/events/intel/knc.c b/arch/x86/events/intel/knc.c
index 548d5f774b07..618001c208e8 100644
--- a/arch/x86/events/intel/knc.c
+++ b/arch/x86/events/intel/knc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Driver for Intel Xeon Phi "Knights Corner" PMU */
 
 #include <linux/perf_event.h>
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
index 8a6bbacd17dc..ae64d0b69729 100644
--- a/arch/x86/events/intel/lbr.c
+++ b/arch/x86/events/intel/lbr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/perf_event.h>
 #include <linux/types.h>
 
diff --git a/arch/x86/events/intel/p6.c b/arch/x86/events/intel/p6.c
index 1f5c47ab4c65..a5604c352930 100644
--- a/arch/x86/events/intel/p6.c
+++ b/arch/x86/events/intel/p6.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/perf_event.h>
 #include <linux/types.h>
 
diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c
index 8e2457cb6b4a..005908ee9333 100644
--- a/arch/x86/events/intel/rapl.c
+++ b/arch/x86/events/intel/rapl.c
@@ -775,6 +775,9 @@ static const struct x86_cpu_id rapl_cpu_match[] __initconst = {
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_DESKTOP, skl_rapl_init),
 
 	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, hsw_rapl_init),
+	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_DENVERTON, hsw_rapl_init),
+
+	X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GEMINI_LAKE, hsw_rapl_init),
 	{},
 };
 
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 1c5390f1cf09..d45e06346f14 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -822,7 +822,7 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 		pmus[i].type	= type;
 		pmus[i].boxes	= kzalloc(size, GFP_KERNEL);
 		if (!pmus[i].boxes)
-			return -ENOMEM;
+			goto err;
 	}
 
 	type->pmus = pmus;
@@ -836,7 +836,7 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 		attr_group = kzalloc(sizeof(struct attribute *) * (i + 1) +
 					sizeof(*attr_group), GFP_KERNEL);
 		if (!attr_group)
-			return -ENOMEM;
+			goto err;
 
 		attrs = (struct attribute **)(attr_group + 1);
 		attr_group->name = "events";
@@ -849,7 +849,15 @@ static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
 	}
 
 	type->pmu_group = &uncore_pmu_attr_group;
+
 	return 0;
+
+err:
+	for (i = 0; i < type->num_boxes; i++)
+		kfree(pmus[i].boxes);
+	kfree(pmus);
+
+	return -ENOMEM;
 }
 
 static int __init
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
index df5989f27b1b..4364191e7c6b 100644
--- a/arch/x86/events/intel/uncore.h
+++ b/arch/x86/events/intel/uncore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <asm/apicdef.h>
diff --git a/arch/x86/events/intel/uncore_nhmex.c b/arch/x86/events/intel/uncore_nhmex.c
index 6a5cbe90f859..93e7a8397cde 100644
--- a/arch/x86/events/intel/uncore_nhmex.c
+++ b/arch/x86/events/intel/uncore_nhmex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Nehalem-EX/Westmere-EX uncore support */
 #include "uncore.h"
 
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
index db1127ce685e..aee5e8496be4 100644
--- a/arch/x86/events/intel/uncore_snb.c
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Nehalem/SandBridge/Haswell/Broadwell/Skylake uncore support */
 #include "uncore.h"
 
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index db1fe377e6dd..95cb19f4e06f 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* SandyBridge-EP/IvyTown uncore support */
 #include "uncore.h"
 
@@ -3462,7 +3463,7 @@ static struct intel_uncore_ops skx_uncore_iio_ops = {
 static struct intel_uncore_type skx_uncore_iio = {
 	.name			= "iio",
 	.num_counters		= 4,
-	.num_boxes		= 5,
+	.num_boxes		= 6,
 	.perf_ctr_bits		= 48,
 	.event_ctl		= SKX_IIO0_MSR_PMON_CTL0,
 	.perf_ctr		= SKX_IIO0_MSR_PMON_CTR0,
@@ -3492,7 +3493,7 @@ static const struct attribute_group skx_uncore_format_group = {
 static struct intel_uncore_type skx_uncore_irp = {
 	.name			= "irp",
 	.num_counters		= 2,
-	.num_boxes		= 5,
+	.num_boxes		= 6,
 	.perf_ctr_bits		= 48,
 	.event_ctl		= SKX_IRP0_MSR_PMON_CTL0,
 	.perf_ctr		= SKX_IRP0_MSR_PMON_CTR0,
diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c
index 4bb3ec69e8ea..14efaa0e8684 100644
--- a/arch/x86/events/msr.c
+++ b/arch/x86/events/msr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/perf_event.h>
 #include <asm/intel-family.h>
 
@@ -63,6 +64,14 @@ static bool test_intel(int idx)
 	case INTEL_FAM6_ATOM_SILVERMONT1:
 	case INTEL_FAM6_ATOM_SILVERMONT2:
 	case INTEL_FAM6_ATOM_AIRMONT:
+
+	case INTEL_FAM6_ATOM_GOLDMONT:
+	case INTEL_FAM6_ATOM_DENVERTON:
+
+	case INTEL_FAM6_ATOM_GEMINI_LAKE:
+
+	case INTEL_FAM6_XEON_PHI_KNL:
+	case INTEL_FAM6_XEON_PHI_KNM:
 		if (idx == PERF_MSR_SMI)
 			return true;
 		break;
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 4196f81ec0e1..f7aaadf9331f 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -85,13 +85,15 @@ struct amd_nb {
  * Flags PEBS can handle without an PMI.
  *
  * TID can only be handled by flushing at context switch.
+ * REGS_USER can be handled for events limited to ring 3.
  *
  */
 #define PEBS_FREERUNNING_FLAGS \
 	(PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_ADDR | \
 	PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \
 	PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \
-	PERF_SAMPLE_TRANSACTION | PERF_SAMPLE_PHYS_ADDR)
+	PERF_SAMPLE_TRANSACTION | PERF_SAMPLE_PHYS_ADDR | \
+	PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER)
 
 /*
  * A debug store configuration.
@@ -110,6 +112,26 @@ struct debug_store {
 	u64	pebs_event_reset[MAX_PEBS_EVENTS];
 };
 
+#define PEBS_REGS \
+	(PERF_REG_X86_AX | \
+	 PERF_REG_X86_BX | \
+	 PERF_REG_X86_CX | \
+	 PERF_REG_X86_DX | \
+	 PERF_REG_X86_DI | \
+	 PERF_REG_X86_SI | \
+	 PERF_REG_X86_SP | \
+	 PERF_REG_X86_BP | \
+	 PERF_REG_X86_IP | \
+	 PERF_REG_X86_FLAGS | \
+	 PERF_REG_X86_R8 | \
+	 PERF_REG_X86_R9 | \
+	 PERF_REG_X86_R10 | \
+	 PERF_REG_X86_R11 | \
+	 PERF_REG_X86_R12 | \
+	 PERF_REG_X86_R13 | \
+	 PERF_REG_X86_R14 | \
+	 PERF_REG_X86_R15)
+
 /*
  * Per register state.
  */
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
index 1a8eb550c40f..a0b86cf486e0 100644
--- a/arch/x86/hyperv/hv_init.c
+++ b/arch/x86/hyperv/hv_init.c
@@ -85,6 +85,8 @@ EXPORT_SYMBOL_GPL(hyperv_cs);
 u32 *hv_vp_index;
 EXPORT_SYMBOL_GPL(hv_vp_index);
 
+u32 hv_max_vp_index;
+
 static int hv_cpu_init(unsigned int cpu)
 {
 	u64 msr_vp_index;
@@ -93,6 +95,9 @@ static int hv_cpu_init(unsigned int cpu)
 
 	hv_vp_index[smp_processor_id()] = msr_vp_index;
 
+	if (msr_vp_index > hv_max_vp_index)
+		hv_max_vp_index = msr_vp_index;
+
 	return 0;
 }
 
@@ -108,7 +113,7 @@ void hyperv_init(void)
 	u64 guest_id;
 	union hv_x64_msr_hypercall_contents hypercall_msr;
 
-	if (x86_hyper != &x86_hyper_ms_hyperv)
+	if (x86_hyper_type != X86_HYPER_MS_HYPERV)
 		return;
 
 	/* Allocate percpu VP index */
diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
index 39e7f6e50919..9cc9e1c1e2db 100644
--- a/arch/x86/hyperv/mmu.c
+++ b/arch/x86/hyperv/mmu.c
@@ -36,9 +36,9 @@ struct hv_flush_pcpu_ex {
 /* Each gva in gva_list encodes up to 4096 pages to flush */
 #define HV_TLB_FLUSH_UNIT (4096 * PAGE_SIZE)
 
-static struct hv_flush_pcpu __percpu *pcpu_flush;
+static struct hv_flush_pcpu __percpu **pcpu_flush;
 
-static struct hv_flush_pcpu_ex __percpu *pcpu_flush_ex;
+static struct hv_flush_pcpu_ex __percpu **pcpu_flush_ex;
 
 /*
  * Fills in gva_list starting from offset. Returns the number of items added.
@@ -76,6 +76,18 @@ static inline int cpumask_to_vp_set(struct hv_flush_pcpu_ex *flush,
 {
 	int cpu, vcpu, vcpu_bank, vcpu_offset, nr_bank = 1;
 
+	/* valid_bank_mask can represent up to 64 banks */
+	if (hv_max_vp_index / 64 >= 64)
+		return 0;
+
+	/*
+	 * Clear all banks up to the maximum possible bank as hv_flush_pcpu_ex
+	 * structs are not cleared between calls, we risk flushing unneeded
+	 * vCPUs otherwise.
+	 */
+	for (vcpu_bank = 0; vcpu_bank <= hv_max_vp_index / 64; vcpu_bank++)
+		flush->hv_vp_set.bank_contents[vcpu_bank] = 0;
+
 	/*
 	 * Some banks may end up being empty but this is acceptable.
 	 */
@@ -83,11 +95,6 @@ static inline int cpumask_to_vp_set(struct hv_flush_pcpu_ex *flush,
 		vcpu = hv_cpu_number_to_vp_number(cpu);
 		vcpu_bank = vcpu / 64;
 		vcpu_offset = vcpu % 64;
-
-		/* valid_bank_mask can represent up to 64 banks */
-		if (vcpu_bank >= 64)
-			return 0;
-
 		__set_bit(vcpu_offset, (unsigned long *)
 			  &flush->hv_vp_set.bank_contents[vcpu_bank]);
 		if (vcpu_bank >= nr_bank)
@@ -102,6 +109,7 @@ static void hyperv_flush_tlb_others(const struct cpumask *cpus,
 				    const struct flush_tlb_info *info)
 {
 	int cpu, vcpu, gva_n, max_gvas;
+	struct hv_flush_pcpu **flush_pcpu;
 	struct hv_flush_pcpu *flush;
 	u64 status = U64_MAX;
 	unsigned long flags;
@@ -116,7 +124,17 @@ static void hyperv_flush_tlb_others(const struct cpumask *cpus,
 
 	local_irq_save(flags);
 
-	flush = this_cpu_ptr(pcpu_flush);
+	flush_pcpu = this_cpu_ptr(pcpu_flush);
+
+	if (unlikely(!*flush_pcpu))
+		*flush_pcpu = page_address(alloc_page(GFP_ATOMIC));
+
+	flush = *flush_pcpu;
+
+	if (unlikely(!flush)) {
+		local_irq_restore(flags);
+		goto do_native;
+	}
 
 	if (info->mm) {
 		flush->address_space = virt_to_phys(info->mm->pgd);
@@ -173,6 +191,7 @@ static void hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
 				       const struct flush_tlb_info *info)
 {
 	int nr_bank = 0, max_gvas, gva_n;
+	struct hv_flush_pcpu_ex **flush_pcpu;
 	struct hv_flush_pcpu_ex *flush;
 	u64 status = U64_MAX;
 	unsigned long flags;
@@ -187,7 +206,17 @@ static void hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
 
 	local_irq_save(flags);
 
-	flush = this_cpu_ptr(pcpu_flush_ex);
+	flush_pcpu = this_cpu_ptr(pcpu_flush_ex);
+
+	if (unlikely(!*flush_pcpu))
+		*flush_pcpu = page_address(alloc_page(GFP_ATOMIC));
+
+	flush = *flush_pcpu;
+
+	if (unlikely(!flush)) {
+		local_irq_restore(flags);
+		goto do_native;
+	}
 
 	if (info->mm) {
 		flush->address_space = virt_to_phys(info->mm->pgd);
@@ -222,18 +251,18 @@ static void hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
 		flush->flags |= HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY;
 		status = hv_do_rep_hypercall(
 			HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
-			0, nr_bank + 2, flush, NULL);
+			0, nr_bank, flush, NULL);
 	} else if (info->end &&
 		   ((info->end - info->start)/HV_TLB_FLUSH_UNIT) > max_gvas) {
 		status = hv_do_rep_hypercall(
 			HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
-			0, nr_bank + 2, flush, NULL);
+			0, nr_bank, flush, NULL);
 	} else {
 		gva_n = fill_gva_list(flush->gva_list, nr_bank,
 				      info->start, info->end);
 		status = hv_do_rep_hypercall(
 			HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX,
-			gva_n, nr_bank + 2, flush, NULL);
+			gva_n, nr_bank, flush, NULL);
 	}
 
 	local_irq_restore(flags);
@@ -266,7 +295,7 @@ void hyper_alloc_mmu(void)
 		return;
 
 	if (!(ms_hyperv.hints & HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED))
-		pcpu_flush = __alloc_percpu(PAGE_SIZE, PAGE_SIZE);
+		pcpu_flush = alloc_percpu(struct hv_flush_pcpu *);
 	else
-		pcpu_flush_ex = __alloc_percpu(PAGE_SIZE, PAGE_SIZE);
+		pcpu_flush_ex = alloc_percpu(struct hv_flush_pcpu_ex *);
 }
diff --git a/arch/x86/ia32/audit.c b/arch/x86/ia32/audit.c
index 2eccc8932ae6..3d21eab7aaed 100644
--- a/arch/x86/ia32/audit.c
+++ b/arch/x86/ia32/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/unistd_32.h>
 
 unsigned ia32_dir_class[] = {
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 8d0879f1d42c..8e02b30cf08e 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -407,10 +407,10 @@ static int load_aout_library(struct file *file)
 	unsigned long bss, start_addr, len, error;
 	int retval;
 	struct exec ex;
-
+	loff_t pos = 0;
 
 	retval = -ENOEXEC;
-	error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
+	error = kernel_read(file, &ex, sizeof(ex), &pos);
 	if (error != sizeof(ex))
 		goto out;
 
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index e0bb46c02857..41c671854642 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/x86_64/ia32/ia32_signal.c
  *
@@ -231,7 +232,7 @@ static void __user *get_sigframe(struct ksignal *ksig, struct pt_regs *regs,
 		 ksig->ka.sa.sa_restorer)
 		sp = (unsigned long) ksig->ka.sa.sa_restorer;
 
-	if (fpu->fpstate_active) {
+	if (fpu->initialized) {
 		unsigned long fx_aligned, math_size;
 
 		sp = fpu__alloc_mathframe(sp, 1, &fx_aligned, &math_size);
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
index 47956c6a4fd8..96cd33bbfc85 100644
--- a/arch/x86/ia32/sys_ia32.c
+++ b/arch/x86/ia32/sys_ia32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Based on
  *             sys_sparc32
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 72d867f6b518..8d0ec9df1cbe 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -150,6 +150,8 @@ static inline void disable_acpi(void) { }
 extern int x86_acpi_numa_init(void);
 #endif /* CONFIG_ACPI_NUMA */
 
+#define acpi_unlazy_tlb(x)	leave_mm(x)
+
 #ifdef CONFIG_ACPI_APEI
 static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
 {
diff --git a/arch/x86/include/asm/agp.h b/arch/x86/include/asm/agp.h
index eec2a70d4376..8e25bf4f323a 100644
--- a/arch/x86/include/asm/agp.h
+++ b/arch/x86/include/asm/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_AGP_H
 #define _ASM_X86_AGP_H
 
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
index e7636bac7372..31b627b43a8e 100644
--- a/arch/x86/include/asm/alternative-asm.h
+++ b/arch/x86/include/asm/alternative-asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ALTERNATIVE_ASM_H
 #define _ASM_X86_ALTERNATIVE_ASM_H
 
@@ -62,8 +63,10 @@
 #define new_len2		145f-144f
 
 /*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
  * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ *
+ * The additional "-" is needed because gas uses a "true" value of -1.
  */
 #define alt_max_short(a, b)	((a) ^ (((a) ^ (b)) & -(-((a) < (b)))))
 
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 1b020381ab38..dbfd0854651f 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ALTERNATIVE_H
 #define _ASM_X86_ALTERNATIVE_H
 
@@ -103,12 +104,12 @@ static inline int alternatives_text_reserved(void *start, void *end)
 	alt_end_marker ":\n"
 
 /*
- * max without conditionals. Idea adapted from:
+ * gas compatible max based on the idea from:
  * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
  *
- * The additional "-" is needed because gas works with s32s.
+ * The additional "-" is needed because gas uses a "true" value of -1.
  */
-#define alt_max_short(a, b)	"((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") - (" b ")))))"
+#define alt_max_short(a, b)	"((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") < (" b ")))))"
 
 /*
  * Pad the second replacement alternative with additional NOPs if it is
@@ -218,10 +219,9 @@ static inline int alternatives_text_reserved(void *start, void *end)
 #define alternative_call_2(oldfunc, newfunc1, feature1, newfunc2, feature2,   \
 			   output, input...)				      \
 {									      \
-	register void *__sp asm(_ASM_SP);				      \
 	asm volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", feature1,\
 		"call %P[new2]", feature2)				      \
-		: output, "+r" (__sp)					      \
+		: output, ASM_CALL_CONSTRAINT				      \
 		: [old] "i" (oldfunc), [new1] "i" (newfunc1),		      \
 		  [new2] "i" (newfunc2), ## input);			      \
 }
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index da181ad1d5f8..fddb6d26239f 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_AMD_NB_H
 #define _ASM_X86_AMD_NB_H
 
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 5f01671c68f2..a9e57f08bfa6 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -53,6 +53,15 @@ extern int local_apic_timer_c2_ok;
 extern int disable_apic;
 extern unsigned int lapic_timer_frequency;
 
+extern enum apic_intr_mode_id apic_intr_mode;
+enum apic_intr_mode_id {
+	APIC_PIC,
+	APIC_VIRTUAL_WIRE,
+	APIC_VIRTUAL_WIRE_NO_CONFIG,
+	APIC_SYMMETRIC_IO,
+	APIC_SYMMETRIC_IO_NO_ROUTING
+};
+
 #ifdef CONFIG_SMP
 extern void __inquire_remote_apic(int apicid);
 #else /* CONFIG_SMP */
@@ -127,14 +136,13 @@ extern void disconnect_bsp_APIC(int virt_wire_setup);
 extern void disable_local_APIC(void);
 extern void lapic_shutdown(void);
 extern void sync_Arb_IDs(void);
-extern void init_bsp_APIC(void);
+extern void apic_intr_mode_init(void);
 extern void setup_local_APIC(void);
 extern void init_apic_mappings(void);
 void register_lapic_address(unsigned long address);
 extern void setup_boot_APIC_clock(void);
 extern void setup_secondary_APIC_clock(void);
 extern void lapic_update_tsc_freq(void);
-extern int APIC_init_uniprocessor(void);
 
 #ifdef CONFIG_X86_64
 static inline int apic_force_enable(unsigned long addr)
@@ -145,7 +153,7 @@ static inline int apic_force_enable(unsigned long addr)
 extern int apic_force_enable(unsigned long addr);
 #endif
 
-extern int apic_bsp_setup(bool upmode);
+extern void apic_bsp_setup(bool upmode);
 extern void apic_ap_setup(void);
 
 /*
@@ -161,6 +169,10 @@ static inline int apic_is_clustered_box(void)
 #endif
 
 extern int setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask);
+extern void lapic_assign_system_vectors(void);
+extern void lapic_assign_legacy_vector(unsigned int isairq, bool replace);
+extern void lapic_online(void);
+extern void lapic_offline(void);
 
 #else /* !CONFIG_X86_LOCAL_APIC */
 static inline void lapic_shutdown(void) { }
@@ -170,6 +182,9 @@ static inline void disable_local_APIC(void) { }
 # define setup_boot_APIC_clock x86_init_noop
 # define setup_secondary_APIC_clock x86_init_noop
 static inline void lapic_update_tsc_freq(void) { }
+static inline void apic_intr_mode_init(void) { }
+static inline void lapic_assign_system_vectors(void) { }
+static inline void lapic_assign_legacy_vector(unsigned int i, bool r) { }
 #endif /* !CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_X86_X2APIC
@@ -265,73 +280,63 @@ struct irq_data;
  * James Cleverdon.
  */
 struct apic {
-	char *name;
-
-	int (*probe)(void);
-	int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
-	int (*apic_id_valid)(int apicid);
-	int (*apic_id_registered)(void);
-
-	u32 irq_delivery_mode;
-	u32 irq_dest_mode;
-
-	const struct cpumask *(*target_cpus)(void);
-
-	int disable_esr;
-
-	int dest_logical;
-	unsigned long (*check_apicid_used)(physid_mask_t *map, int apicid);
-
-	void (*vector_allocation_domain)(int cpu, struct cpumask *retmask,
-					 const struct cpumask *mask);
-	void (*init_apic_ldr)(void);
-
-	void (*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap);
-
-	void (*setup_apic_routing)(void);
-	int (*cpu_present_to_apicid)(int mps_cpu);
-	void (*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
-	int (*check_phys_apicid_present)(int phys_apicid);
-	int (*phys_pkg_id)(int cpuid_apic, int index_msb);
-
-	unsigned int (*get_apic_id)(unsigned long x);
-	/* Can't be NULL on 64-bit */
-	unsigned long (*set_apic_id)(unsigned int id);
-
-	int (*cpu_mask_to_apicid)(const struct cpumask *cpumask,
-				  struct irq_data *irqdata,
-				  unsigned int *apicid);
-
-	/* ipi */
-	void (*send_IPI)(int cpu, int vector);
-	void (*send_IPI_mask)(const struct cpumask *mask, int vector);
-	void (*send_IPI_mask_allbutself)(const struct cpumask *mask,
-					 int vector);
-	void (*send_IPI_allbutself)(int vector);
-	void (*send_IPI_all)(int vector);
-	void (*send_IPI_self)(int vector);
+	/* Hotpath functions first */
+	void	(*eoi_write)(u32 reg, u32 v);
+	void	(*native_eoi_write)(u32 reg, u32 v);
+	void	(*write)(u32 reg, u32 v);
+	u32	(*read)(u32 reg);
+
+	/* IPI related functions */
+	void	(*wait_icr_idle)(void);
+	u32	(*safe_wait_icr_idle)(void);
+
+	void	(*send_IPI)(int cpu, int vector);
+	void	(*send_IPI_mask)(const struct cpumask *mask, int vector);
+	void	(*send_IPI_mask_allbutself)(const struct cpumask *msk, int vec);
+	void	(*send_IPI_allbutself)(int vector);
+	void	(*send_IPI_all)(int vector);
+	void	(*send_IPI_self)(int vector);
+
+	/* dest_logical is used by the IPI functions */
+	u32	dest_logical;
+	u32	disable_esr;
+	u32	irq_delivery_mode;
+	u32	irq_dest_mode;
+
+	/* Functions and data related to vector allocation */
+	void	(*vector_allocation_domain)(int cpu, struct cpumask *retmask,
+					    const struct cpumask *mask);
+	int	(*cpu_mask_to_apicid)(const struct cpumask *cpumask,
+				      struct irq_data *irqdata,
+				      unsigned int *apicid);
+	u32	(*calc_dest_apicid)(unsigned int cpu);
+
+	/* ICR related functions */
+	u64	(*icr_read)(void);
+	void	(*icr_write)(u32 low, u32 high);
+
+	/* Probe, setup and smpboot functions */
+	int	(*probe)(void);
+	int	(*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
+	int	(*apic_id_valid)(int apicid);
+	int	(*apic_id_registered)(void);
+
+	bool	(*check_apicid_used)(physid_mask_t *map, int apicid);
+	void	(*init_apic_ldr)(void);
+	void	(*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap);
+	void	(*setup_apic_routing)(void);
+	int	(*cpu_present_to_apicid)(int mps_cpu);
+	void	(*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
+	int	(*check_phys_apicid_present)(int phys_apicid);
+	int	(*phys_pkg_id)(int cpuid_apic, int index_msb);
+
+	u32	(*get_apic_id)(unsigned long x);
+	u32	(*set_apic_id)(unsigned int id);
 
 	/* wakeup_secondary_cpu */
-	int (*wakeup_secondary_cpu)(int apicid, unsigned long start_eip);
+	int	(*wakeup_secondary_cpu)(int apicid, unsigned long start_eip);
 
-	void (*inquire_remote_apic)(int apicid);
-
-	/* apic ops */
-	u32 (*read)(u32 reg);
-	void (*write)(u32 reg, u32 v);
-	/*
-	 * ->eoi_write() has the same signature as ->write().
-	 *
-	 * Drivers can support both ->eoi_write() and ->write() by passing the same
-	 * callback value. Kernel can override ->eoi_write() and fall back
-	 * on write for EOI.
-	 */
-	void (*eoi_write)(u32 reg, u32 v);
-	void (*native_eoi_write)(u32 reg, u32 v);
-	u64 (*icr_read)(void);
-	void (*icr_write)(u32 low, u32 high);
-	void (*wait_icr_idle)(void);
-	u32 (*safe_wait_icr_idle)(void);
+	void	(*inquire_remote_apic)(int apicid);
 
 #ifdef CONFIG_X86_32
 	/*
@@ -346,6 +351,7 @@ struct apic {
 	 */
 	int (*x86_32_early_logical_apicid)(int cpu);
 #endif
+	char	*name;
 };
 
 /*
@@ -380,6 +386,7 @@ extern struct apic *__apicdrivers[], *__apicdrivers_end[];
  */
 #ifdef CONFIG_SMP
 extern int wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip);
+extern int lapic_can_unplug_cpu(void);
 #endif
 
 #ifdef CONFIG_X86_LOCAL_APIC
@@ -463,84 +470,33 @@ static inline unsigned default_get_apic_id(unsigned long x)
 extern void apic_send_IPI_self(int vector);
 
 DECLARE_PER_CPU(int, x2apic_extra_bits);
-
-extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int phys_apicid);
 #endif
 
 extern void generic_bigsmp_probe(void);
 
-
 #ifdef CONFIG_X86_LOCAL_APIC
 
 #include <asm/smp.h>
 
 #define APIC_DFR_VALUE	(APIC_DFR_FLAT)
 
-static inline const struct cpumask *default_target_cpus(void)
-{
-#ifdef CONFIG_SMP
-	return cpu_online_mask;
-#else
-	return cpumask_of(0);
-#endif
-}
-
-static inline const struct cpumask *online_target_cpus(void)
-{
-	return cpu_online_mask;
-}
-
 DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_bios_cpu_apicid);
 
+extern struct apic apic_noop;
 
 static inline unsigned int read_apic_id(void)
 {
-	unsigned int reg;
-
-	reg = apic_read(APIC_ID);
+	unsigned int reg = apic_read(APIC_ID);
 
 	return apic->get_apic_id(reg);
 }
 
-static inline int default_apic_id_valid(int apicid)
-{
-	return (apicid < 255);
-}
-
+extern int default_apic_id_valid(int apicid);
 extern int default_acpi_madt_oem_check(char *, char *);
-
 extern void default_setup_apic_routing(void);
 
-extern struct apic apic_noop;
-
-#ifdef CONFIG_X86_32
-
-static inline int noop_x86_32_early_logical_apicid(int cpu)
-{
-	return BAD_APICID;
-}
-
-/*
- * Set up the logical destination ID.
- *
- * Intel recommends to set DFR, LDR and TPR before enabling
- * an APIC.  See e.g. "AP-388 82489DX User's Manual" (Intel
- * document number 292116).  So here it goes...
- */
-extern void default_init_apic_ldr(void);
-
-static inline int default_apic_id_registered(void)
-{
-	return physid_isset(read_apic_id(), phys_cpu_present_map);
-}
-
-static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
-{
-	return cpuid_apic >> index_msb;
-}
-
-#endif
+extern u32 apic_default_calc_apicid(unsigned int cpu);
+extern u32 apic_flat_calc_apicid(unsigned int cpu);
 
 extern int flat_cpu_mask_to_apicid(const struct cpumask *cpumask,
 				   struct irq_data *irqdata,
@@ -548,71 +504,17 @@ extern int flat_cpu_mask_to_apicid(const struct cpumask *cpumask,
 extern int default_cpu_mask_to_apicid(const struct cpumask *cpumask,
 				      struct irq_data *irqdata,
 				      unsigned int *apicid);
-
-static inline void
-flat_vector_allocation_domain(int cpu, struct cpumask *retmask,
-			      const struct cpumask *mask)
-{
-	/* Careful. Some cpus do not strictly honor the set of cpus
-	 * specified in the interrupt destination when using lowest
-	 * priority interrupt delivery mode.
-	 *
-	 * In particular there was a hyperthreading cpu observed to
-	 * deliver interrupts to the wrong hyperthread when only one
-	 * hyperthread was specified in the interrupt desitination.
-	 */
-	cpumask_clear(retmask);
-	cpumask_bits(retmask)[0] = APIC_ALL_CPUS;
-}
-
-static inline void
-default_vector_allocation_domain(int cpu, struct cpumask *retmask,
-				 const struct cpumask *mask)
-{
-	cpumask_copy(retmask, cpumask_of(cpu));
-}
-
-static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid)
-{
-	return physid_isset(apicid, *map);
-}
-
-static inline void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
-{
-	*retmap = *phys_map;
-}
-
-static inline int __default_cpu_present_to_apicid(int mps_cpu)
-{
-	if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
-		return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
-	else
-		return BAD_APICID;
-}
-
-static inline int
-__default_check_phys_apicid_present(int phys_apicid)
-{
-	return physid_isset(phys_apicid, phys_cpu_present_map);
-}
-
-#ifdef CONFIG_X86_32
-static inline int default_cpu_present_to_apicid(int mps_cpu)
-{
-	return __default_cpu_present_to_apicid(mps_cpu);
-}
-
-static inline int
-default_check_phys_apicid_present(int phys_apicid)
-{
-	return __default_check_phys_apicid_present(phys_apicid);
-}
-#else
+extern bool default_check_apicid_used(physid_mask_t *map, int apicid);
+extern void flat_vector_allocation_domain(int cpu, struct cpumask *retmask,
+				   const struct cpumask *mask);
+extern void default_vector_allocation_domain(int cpu, struct cpumask *retmask,
+				      const struct cpumask *mask);
+extern void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap);
 extern int default_cpu_present_to_apicid(int mps_cpu);
 extern int default_check_phys_apicid_present(int phys_apicid);
-#endif
 
 #endif /* CONFIG_X86_LOCAL_APIC */
+
 extern void irq_enter(void);
 extern void irq_exit(void);
 
diff --git a/arch/x86/include/asm/apic_flat_64.h b/arch/x86/include/asm/apic_flat_64.h
index a2d312796440..d3a2b3876ce6 100644
--- a/arch/x86/include/asm/apic_flat_64.h
+++ b/arch/x86/include/asm/apic_flat_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_APIC_FLAT_64_H
 #define _ASM_X86_APIC_FLAT_64_H
 
diff --git a/arch/x86/include/asm/apicdef.h b/arch/x86/include/asm/apicdef.h
index c46bb99d5fb2..05e694ed8386 100644
--- a/arch/x86/include/asm/apicdef.h
+++ b/arch/x86/include/asm/apicdef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_APICDEF_H
 #define _ASM_X86_APICDEF_H
 
diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
index 93eebc636c76..4d4015ddcf26 100644
--- a/arch/x86/include/asm/apm.h
+++ b/arch/x86/include/asm/apm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Machine specific APM BIOS functions for generic.
  *  Split out from apm.c by Osamu Tomita <tomita@cinet.co.jp>
diff --git a/arch/x86/include/asm/arch_hweight.h b/arch/x86/include/asm/arch_hweight.h
index e7cd63175de4..34a10b2d5b73 100644
--- a/arch/x86/include/asm/arch_hweight.h
+++ b/arch/x86/include/asm/arch_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HWEIGHT_H
 #define _ASM_X86_HWEIGHT_H
 
diff --git a/arch/x86/include/asm/archrandom.h b/arch/x86/include/asm/archrandom.h
index 5b0579abb398..3ac991d81e74 100644
--- a/arch/x86/include/asm/archrandom.h
+++ b/arch/x86/include/asm/archrandom.h
@@ -45,7 +45,7 @@ static inline bool rdrand_long(unsigned long *v)
 	bool ok;
 	unsigned int retry = RDRAND_RETRY_LOOPS;
 	do {
-		asm volatile(RDRAND_LONG "\n\t"
+		asm volatile(RDRAND_LONG
 			     CC_SET(c)
 			     : CC_OUT(c) (ok), "=a" (*v));
 		if (ok)
@@ -59,7 +59,7 @@ static inline bool rdrand_int(unsigned int *v)
 	bool ok;
 	unsigned int retry = RDRAND_RETRY_LOOPS;
 	do {
-		asm volatile(RDRAND_INT "\n\t"
+		asm volatile(RDRAND_INT
 			     CC_SET(c)
 			     : CC_OUT(c) (ok), "=a" (*v));
 		if (ok)
@@ -71,7 +71,7 @@ static inline bool rdrand_int(unsigned int *v)
 static inline bool rdseed_long(unsigned long *v)
 {
 	bool ok;
-	asm volatile(RDSEED_LONG "\n\t"
+	asm volatile(RDSEED_LONG
 		     CC_SET(c)
 		     : CC_OUT(c) (ok), "=a" (*v));
 	return ok;
@@ -80,7 +80,7 @@ static inline bool rdseed_long(unsigned long *v)
 static inline bool rdseed_int(unsigned int *v)
 {
 	bool ok;
-	asm volatile(RDSEED_INT "\n\t"
+	asm volatile(RDSEED_INT
 		     CC_SET(c)
 		     : CC_OUT(c) (ok), "=a" (*v));
 	return ok;
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
index 830b19dbfa31..ff700d81e91e 100644
--- a/arch/x86/include/asm/asm-prototypes.h
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/ftrace.h>
 #include <linux/uaccess.h>
 #include <asm/string.h>
diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h
index 676ee5807d86..219faaec51df 100644
--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ASM_H
 #define _ASM_X86_ASM_H
 
@@ -11,10 +12,12 @@
 # define __ASM_FORM_COMMA(x) " " #x ","
 #endif
 
-#ifdef CONFIG_X86_32
+#ifndef __x86_64__
+/* 32 bit */
 # define __ASM_SEL(a,b) __ASM_FORM(a)
 # define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(a)
 #else
+/* 64 bit */
 # define __ASM_SEL(a,b) __ASM_FORM(b)
 # define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(b)
 #endif
@@ -132,4 +135,15 @@
 /* For C file, we already have NOKPROBE_SYMBOL macro */
 #endif
 
+#ifndef __ASSEMBLY__
+/*
+ * This output constraint should be used for any inline asm which has a "call"
+ * instruction.  Otherwise the asm may be inserted before the frame pointer
+ * gets set up by the containing function.  If you forget to do this, objtool
+ * may print a "call without frame pointer save/setup" warning.
+ */
+register unsigned long current_stack_pointer asm(_ASM_SP);
+#define ASM_CALL_CONSTRAINT "+r" (current_stack_pointer)
+#endif
+
 #endif /* _ASM_X86_ASM_H */
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 0874ebda3069..72759f131cc5 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ATOMIC_H
 #define _ASM_X86_ATOMIC_H
 
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 9e206f31ce2a..97c46b8169b7 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ATOMIC64_32_H
 #define _ASM_X86_ATOMIC64_32_H
 
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 5d9de36a2f04..738495caf05f 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ATOMIC64_64_H
 #define _ASM_X86_ATOMIC64_64_H
 
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
index bfb28caf97b1..7fb336210e1b 100644
--- a/arch/x86/include/asm/barrier.h
+++ b/arch/x86/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BARRIER_H
 #define _ASM_X86_BARRIER_H
 
@@ -11,11 +12,11 @@
  */
 
 #ifdef CONFIG_X86_32
-#define mb() asm volatile(ALTERNATIVE("lock; addl $0,0(%%esp)", "mfence", \
+#define mb() asm volatile(ALTERNATIVE("lock; addl $0,-4(%%esp)", "mfence", \
 				      X86_FEATURE_XMM2) ::: "memory", "cc")
-#define rmb() asm volatile(ALTERNATIVE("lock; addl $0,0(%%esp)", "lfence", \
+#define rmb() asm volatile(ALTERNATIVE("lock; addl $0,-4(%%esp)", "lfence", \
 				       X86_FEATURE_XMM2) ::: "memory", "cc")
-#define wmb() asm volatile(ALTERNATIVE("lock; addl $0,0(%%esp)", "sfence", \
+#define wmb() asm volatile(ALTERNATIVE("lock; addl $0,-4(%%esp)", "sfence", \
 				       X86_FEATURE_XMM2) ::: "memory", "cc")
 #else
 #define mb() 	asm volatile("mfence":::"memory")
@@ -30,7 +31,11 @@
 #endif
 #define dma_wmb()	barrier()
 
-#define __smp_mb()	mb()
+#ifdef CONFIG_X86_32
+#define __smp_mb()	asm volatile("lock; addl $0,-4(%%esp)" ::: "memory", "cc")
+#else
+#define __smp_mb()	asm volatile("lock; addl $0,-4(%%rsp)" ::: "memory", "cc")
+#endif
 #define __smp_rmb()	dma_rmb()
 #define __smp_wmb()	barrier()
 #define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)
diff --git a/arch/x86/include/asm/bios_ebda.h b/arch/x86/include/asm/bios_ebda.h
index 4b7b8e71607e..4d5a17e2febe 100644
--- a/arch/x86/include/asm/bios_ebda.h
+++ b/arch/x86/include/asm/bios_ebda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BIOS_EBDA_H
 #define _ASM_X86_BIOS_EBDA_H
 
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 854022772c5b..3fa039855b8f 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BITOPS_H
 #define _ASM_X86_BITOPS_H
 
@@ -142,7 +143,7 @@ static __always_inline void __clear_bit(long nr, volatile unsigned long *addr)
 static __always_inline bool clear_bit_unlock_is_negative_byte(long nr, volatile unsigned long *addr)
 {
 	bool negative;
-	asm volatile(LOCK_PREFIX "andb %2,%1\n\t"
+	asm volatile(LOCK_PREFIX "andb %2,%1"
 		CC_SET(s)
 		: CC_OUT(s) (negative), ADDR
 		: "ir" ((char) ~(1 << nr)) : "memory");
@@ -245,7 +246,7 @@ static __always_inline bool __test_and_set_bit(long nr, volatile unsigned long *
 {
 	bool oldbit;
 
-	asm("bts %2,%1\n\t"
+	asm("bts %2,%1"
 	    CC_SET(c)
 	    : CC_OUT(c) (oldbit), ADDR
 	    : "Ir" (nr));
@@ -285,7 +286,7 @@ static __always_inline bool __test_and_clear_bit(long nr, volatile unsigned long
 {
 	bool oldbit;
 
-	asm volatile("btr %2,%1\n\t"
+	asm volatile("btr %2,%1"
 		     CC_SET(c)
 		     : CC_OUT(c) (oldbit), ADDR
 		     : "Ir" (nr));
@@ -297,7 +298,7 @@ static __always_inline bool __test_and_change_bit(long nr, volatile unsigned lon
 {
 	bool oldbit;
 
-	asm volatile("btc %2,%1\n\t"
+	asm volatile("btc %2,%1"
 		     CC_SET(c)
 		     : CC_OUT(c) (oldbit), ADDR
 		     : "Ir" (nr) : "memory");
@@ -328,7 +329,7 @@ static __always_inline bool variable_test_bit(long nr, volatile const unsigned l
 {
 	bool oldbit;
 
-	asm volatile("bt %2,%1\n\t"
+	asm volatile("bt %2,%1"
 		     CC_SET(c)
 		     : CC_OUT(c) (oldbit)
 		     : "m" (*(unsigned long *)addr), "Ir" (nr));
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index abd06b19ddd2..680c320363db 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BOOT_H
 #define _ASM_X86_BOOT_H
 
diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h
index 4a8cb8d7cbd5..a07ffd23e4dd 100644
--- a/arch/x86/include/asm/bootparam_utils.h
+++ b/arch/x86/include/asm/bootparam_utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BOOTPARAM_UTILS_H
 #define _ASM_X86_BOOTPARAM_UTILS_H
 
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index aa6b2023d8f8..34d99af43994 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BUG_H
 #define _ASM_X86_BUG_H
 
diff --git a/arch/x86/include/asm/bugs.h b/arch/x86/include/asm/bugs.h
index 5490bbaf71d5..542509b53e0f 100644
--- a/arch/x86/include/asm/bugs.h
+++ b/arch/x86/include/asm/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BUGS_H
 #define _ASM_X86_BUGS_H
 
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 48f99f15452e..abe08690a887 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CACHE_H
 #define _ASM_X86_CACHE_H
 
diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
index cb9a1af109b4..63feaf2a5f93 100644
--- a/arch/x86/include/asm/cacheflush.h
+++ b/arch/x86/include/asm/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CACHEFLUSH_H
 #define _ASM_X86_CACHEFLUSH_H
 
diff --git a/arch/x86/include/asm/ce4100.h b/arch/x86/include/asm/ce4100.h
index e656ad8c0a2e..2930f560d7f3 100644
--- a/arch/x86/include/asm/ce4100.h
+++ b/arch/x86/include/asm/ce4100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_CE4100_H_
 #define _ASM_CE4100_H_
 
diff --git a/arch/x86/include/asm/checksum.h b/arch/x86/include/asm/checksum.h
index 5f5bb0f97361..d79d1e622dcf 100644
--- a/arch/x86/include/asm/checksum.h
+++ b/arch/x86/include/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_X86_32
 # include <asm/checksum_32.h>
 #else
diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
index 7b53743ed267..7a659c74cd03 100644
--- a/arch/x86/include/asm/checksum_32.h
+++ b/arch/x86/include/asm/checksum_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CHECKSUM_32_H
 #define _ASM_X86_CHECKSUM_32_H
 
diff --git a/arch/x86/include/asm/checksum_64.h b/arch/x86/include/asm/checksum_64.h
index 08e7efb2c140..3ec6d3267cf9 100644
--- a/arch/x86/include/asm/checksum_64.h
+++ b/arch/x86/include/asm/checksum_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CHECKSUM_64_H
 #define _ASM_X86_CHECKSUM_64_H
 
diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h
index 47bea8cadbd0..dc4cfc888d6d 100644
--- a/arch/x86/include/asm/clocksource.h
+++ b/arch/x86/include/asm/clocksource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* x86-specific clocksource additions */
 
 #ifndef _ASM_X86_CLOCKSOURCE_H
diff --git a/arch/x86/include/asm/cmdline.h b/arch/x86/include/asm/cmdline.h
index 84ae170bc3d0..6faaf27e8899 100644
--- a/arch/x86/include/asm/cmdline.h
+++ b/arch/x86/include/asm/cmdline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CMDLINE_H
 #define _ASM_X86_CMDLINE_H
 
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index b5069e802d5c..56bd436ed01b 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_CMPXCHG_H
 #define ASM_X86_CMPXCHG_H
 
diff --git a/arch/x86/include/asm/cmpxchg_32.h b/arch/x86/include/asm/cmpxchg_32.h
index e4959d023af8..1732704f0445 100644
--- a/arch/x86/include/asm/cmpxchg_32.h
+++ b/arch/x86/include/asm/cmpxchg_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CMPXCHG_32_H
 #define _ASM_X86_CMPXCHG_32_H
 
diff --git a/arch/x86/include/asm/cmpxchg_64.h b/arch/x86/include/asm/cmpxchg_64.h
index caa23a34c963..03cad196a301 100644
--- a/arch/x86/include/asm/cmpxchg_64.h
+++ b/arch/x86/include/asm/cmpxchg_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CMPXCHG_64_H
 #define _ASM_X86_CMPXCHG_64_H
 
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 5343c19814b3..a600a6cda9ec 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_COMPAT_H
 #define _ASM_X86_COMPAT_H
 
@@ -6,6 +7,7 @@
  */
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <asm/processor.h>
 #include <asm/user32.h>
 #include <asm/unistd.h>
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index 9b7fa6313f1a..adc6cc86b062 100644
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CPU_H
 #define _ASM_X86_CPU_H
 
diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h
index ff501e511d91..baeba0567126 100644
--- a/arch/x86/include/asm/cpu_device_id.h
+++ b/arch/x86/include/asm/cpu_device_id.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CPU_DEVICE_ID
 #define _CPU_DEVICE_ID 1
 
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index d59c15c3defd..bf6a76202a77 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CPUFEATURE_H
 #define _ASM_X86_CPUFEATURE_H
 
@@ -125,11 +126,10 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
 #define boot_cpu_has(bit)	cpu_has(&boot_cpu_data, bit)
 
 #define set_cpu_cap(c, bit)	set_bit(bit, (unsigned long *)((c)->x86_capability))
-#define clear_cpu_cap(c, bit)	clear_bit(bit, (unsigned long *)((c)->x86_capability))
-#define setup_clear_cpu_cap(bit) do { \
-	clear_cpu_cap(&boot_cpu_data, bit);	\
-	set_bit(bit, (unsigned long *)cpu_caps_cleared); \
-} while (0)
+
+extern void setup_clear_cpu_cap(unsigned int bit);
+extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit);
+
 #define setup_force_cpu_cap(bit) do { \
 	set_cpu_cap(&boot_cpu_data, bit);	\
 	set_bit(bit, (unsigned long *)cpu_caps_set);	\
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 2519c6c801c9..c0b0e9e8aa66 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CPUFEATURES_H
 #define _ASM_X86_CPUFEATURES_H
 
@@ -12,173 +13,176 @@
 /*
  * Defines x86 CPU feature bits
  */
-#define NCAPINTS	18	/* N 32-bit words worth of info */
-#define NBUGINTS	1	/* N 32-bit bug flags */
+#define NCAPINTS			18	   /* N 32-bit words worth of info */
+#define NBUGINTS			1	   /* N 32-bit bug flags */
 
 /*
  * Note: If the comment begins with a quoted string, that string is used
  * in /proc/cpuinfo instead of the macro name.  If the string is "",
  * this feature bit is not displayed in /proc/cpuinfo at all.
+ *
+ * When adding new features here that depend on other features,
+ * please update the table in kernel/cpu/cpuid-deps.c as well.
  */
 
-/* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */
-#define X86_FEATURE_FPU		( 0*32+ 0) /* Onboard FPU */
-#define X86_FEATURE_VME		( 0*32+ 1) /* Virtual Mode Extensions */
-#define X86_FEATURE_DE		( 0*32+ 2) /* Debugging Extensions */
-#define X86_FEATURE_PSE		( 0*32+ 3) /* Page Size Extensions */
-#define X86_FEATURE_TSC		( 0*32+ 4) /* Time Stamp Counter */
-#define X86_FEATURE_MSR		( 0*32+ 5) /* Model-Specific Registers */
-#define X86_FEATURE_PAE		( 0*32+ 6) /* Physical Address Extensions */
-#define X86_FEATURE_MCE		( 0*32+ 7) /* Machine Check Exception */
-#define X86_FEATURE_CX8		( 0*32+ 8) /* CMPXCHG8 instruction */
-#define X86_FEATURE_APIC	( 0*32+ 9) /* Onboard APIC */
-#define X86_FEATURE_SEP		( 0*32+11) /* SYSENTER/SYSEXIT */
-#define X86_FEATURE_MTRR	( 0*32+12) /* Memory Type Range Registers */
-#define X86_FEATURE_PGE		( 0*32+13) /* Page Global Enable */
-#define X86_FEATURE_MCA		( 0*32+14) /* Machine Check Architecture */
-#define X86_FEATURE_CMOV	( 0*32+15) /* CMOV instructions */
-					  /* (plus FCMOVcc, FCOMI with FPU) */
-#define X86_FEATURE_PAT		( 0*32+16) /* Page Attribute Table */
-#define X86_FEATURE_PSE36	( 0*32+17) /* 36-bit PSEs */
-#define X86_FEATURE_PN		( 0*32+18) /* Processor serial number */
-#define X86_FEATURE_CLFLUSH	( 0*32+19) /* CLFLUSH instruction */
-#define X86_FEATURE_DS		( 0*32+21) /* "dts" Debug Store */
-#define X86_FEATURE_ACPI	( 0*32+22) /* ACPI via MSR */
-#define X86_FEATURE_MMX		( 0*32+23) /* Multimedia Extensions */
-#define X86_FEATURE_FXSR	( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
-#define X86_FEATURE_XMM		( 0*32+25) /* "sse" */
-#define X86_FEATURE_XMM2	( 0*32+26) /* "sse2" */
-#define X86_FEATURE_SELFSNOOP	( 0*32+27) /* "ss" CPU self snoop */
-#define X86_FEATURE_HT		( 0*32+28) /* Hyper-Threading */
-#define X86_FEATURE_ACC		( 0*32+29) /* "tm" Automatic clock control */
-#define X86_FEATURE_IA64	( 0*32+30) /* IA-64 processor */
-#define X86_FEATURE_PBE		( 0*32+31) /* Pending Break Enable */
+/* Intel-defined CPU features, CPUID level 0x00000001 (EDX), word 0 */
+#define X86_FEATURE_FPU			( 0*32+ 0) /* Onboard FPU */
+#define X86_FEATURE_VME			( 0*32+ 1) /* Virtual Mode Extensions */
+#define X86_FEATURE_DE			( 0*32+ 2) /* Debugging Extensions */
+#define X86_FEATURE_PSE			( 0*32+ 3) /* Page Size Extensions */
+#define X86_FEATURE_TSC			( 0*32+ 4) /* Time Stamp Counter */
+#define X86_FEATURE_MSR			( 0*32+ 5) /* Model-Specific Registers */
+#define X86_FEATURE_PAE			( 0*32+ 6) /* Physical Address Extensions */
+#define X86_FEATURE_MCE			( 0*32+ 7) /* Machine Check Exception */
+#define X86_FEATURE_CX8			( 0*32+ 8) /* CMPXCHG8 instruction */
+#define X86_FEATURE_APIC		( 0*32+ 9) /* Onboard APIC */
+#define X86_FEATURE_SEP			( 0*32+11) /* SYSENTER/SYSEXIT */
+#define X86_FEATURE_MTRR		( 0*32+12) /* Memory Type Range Registers */
+#define X86_FEATURE_PGE			( 0*32+13) /* Page Global Enable */
+#define X86_FEATURE_MCA			( 0*32+14) /* Machine Check Architecture */
+#define X86_FEATURE_CMOV		( 0*32+15) /* CMOV instructions (plus FCMOVcc, FCOMI with FPU) */
+#define X86_FEATURE_PAT			( 0*32+16) /* Page Attribute Table */
+#define X86_FEATURE_PSE36		( 0*32+17) /* 36-bit PSEs */
+#define X86_FEATURE_PN			( 0*32+18) /* Processor serial number */
+#define X86_FEATURE_CLFLUSH		( 0*32+19) /* CLFLUSH instruction */
+#define X86_FEATURE_DS			( 0*32+21) /* "dts" Debug Store */
+#define X86_FEATURE_ACPI		( 0*32+22) /* ACPI via MSR */
+#define X86_FEATURE_MMX			( 0*32+23) /* Multimedia Extensions */
+#define X86_FEATURE_FXSR		( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
+#define X86_FEATURE_XMM			( 0*32+25) /* "sse" */
+#define X86_FEATURE_XMM2		( 0*32+26) /* "sse2" */
+#define X86_FEATURE_SELFSNOOP		( 0*32+27) /* "ss" CPU self snoop */
+#define X86_FEATURE_HT			( 0*32+28) /* Hyper-Threading */
+#define X86_FEATURE_ACC			( 0*32+29) /* "tm" Automatic clock control */
+#define X86_FEATURE_IA64		( 0*32+30) /* IA-64 processor */
+#define X86_FEATURE_PBE			( 0*32+31) /* Pending Break Enable */
 
 /* AMD-defined CPU features, CPUID level 0x80000001, word 1 */
 /* Don't duplicate feature flags which are redundant with Intel! */
-#define X86_FEATURE_SYSCALL	( 1*32+11) /* SYSCALL/SYSRET */
-#define X86_FEATURE_MP		( 1*32+19) /* MP Capable. */
-#define X86_FEATURE_NX		( 1*32+20) /* Execute Disable */
-#define X86_FEATURE_MMXEXT	( 1*32+22) /* AMD MMX extensions */
-#define X86_FEATURE_FXSR_OPT	( 1*32+25) /* FXSAVE/FXRSTOR optimizations */
-#define X86_FEATURE_GBPAGES	( 1*32+26) /* "pdpe1gb" GB pages */
-#define X86_FEATURE_RDTSCP	( 1*32+27) /* RDTSCP */
-#define X86_FEATURE_LM		( 1*32+29) /* Long Mode (x86-64) */
-#define X86_FEATURE_3DNOWEXT	( 1*32+30) /* AMD 3DNow! extensions */
-#define X86_FEATURE_3DNOW	( 1*32+31) /* 3DNow! */
+#define X86_FEATURE_SYSCALL		( 1*32+11) /* SYSCALL/SYSRET */
+#define X86_FEATURE_MP			( 1*32+19) /* MP Capable */
+#define X86_FEATURE_NX			( 1*32+20) /* Execute Disable */
+#define X86_FEATURE_MMXEXT		( 1*32+22) /* AMD MMX extensions */
+#define X86_FEATURE_FXSR_OPT		( 1*32+25) /* FXSAVE/FXRSTOR optimizations */
+#define X86_FEATURE_GBPAGES		( 1*32+26) /* "pdpe1gb" GB pages */
+#define X86_FEATURE_RDTSCP		( 1*32+27) /* RDTSCP */
+#define X86_FEATURE_LM			( 1*32+29) /* Long Mode (x86-64, 64-bit support) */
+#define X86_FEATURE_3DNOWEXT		( 1*32+30) /* AMD 3DNow extensions */
+#define X86_FEATURE_3DNOW		( 1*32+31) /* 3DNow */
 
 /* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */
-#define X86_FEATURE_RECOVERY	( 2*32+ 0) /* CPU in recovery mode */
-#define X86_FEATURE_LONGRUN	( 2*32+ 1) /* Longrun power control */
-#define X86_FEATURE_LRTI	( 2*32+ 3) /* LongRun table interface */
+#define X86_FEATURE_RECOVERY		( 2*32+ 0) /* CPU in recovery mode */
+#define X86_FEATURE_LONGRUN		( 2*32+ 1) /* Longrun power control */
+#define X86_FEATURE_LRTI		( 2*32+ 3) /* LongRun table interface */
 
 /* Other features, Linux-defined mapping, word 3 */
 /* This range is used for feature bits which conflict or are synthesized */
-#define X86_FEATURE_CXMMX	( 3*32+ 0) /* Cyrix MMX extensions */
-#define X86_FEATURE_K6_MTRR	( 3*32+ 1) /* AMD K6 nonstandard MTRRs */
-#define X86_FEATURE_CYRIX_ARR	( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */
-#define X86_FEATURE_CENTAUR_MCR	( 3*32+ 3) /* Centaur MCRs (= MTRRs) */
-/* cpu types for specific tunings: */
-#define X86_FEATURE_K8		( 3*32+ 4) /* "" Opteron, Athlon64 */
-#define X86_FEATURE_K7		( 3*32+ 5) /* "" Athlon */
-#define X86_FEATURE_P3		( 3*32+ 6) /* "" P3 */
-#define X86_FEATURE_P4		( 3*32+ 7) /* "" P4 */
-#define X86_FEATURE_CONSTANT_TSC ( 3*32+ 8) /* TSC ticks at a constant rate */
-#define X86_FEATURE_UP		( 3*32+ 9) /* smp kernel running on up */
-#define X86_FEATURE_ART		( 3*32+10) /* Platform has always running timer (ART) */
-#define X86_FEATURE_ARCH_PERFMON ( 3*32+11) /* Intel Architectural PerfMon */
-#define X86_FEATURE_PEBS	( 3*32+12) /* Precise-Event Based Sampling */
-#define X86_FEATURE_BTS		( 3*32+13) /* Branch Trace Store */
-#define X86_FEATURE_SYSCALL32	( 3*32+14) /* "" syscall in ia32 userspace */
-#define X86_FEATURE_SYSENTER32	( 3*32+15) /* "" sysenter in ia32 userspace */
-#define X86_FEATURE_REP_GOOD	( 3*32+16) /* rep microcode works well */
-#define X86_FEATURE_MFENCE_RDTSC ( 3*32+17) /* "" Mfence synchronizes RDTSC */
-#define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) /* "" Lfence synchronizes RDTSC */
-#define X86_FEATURE_ACC_POWER	( 3*32+19) /* AMD Accumulated Power Mechanism */
-#define X86_FEATURE_NOPL	( 3*32+20) /* The NOPL (0F 1F) instructions */
-#define X86_FEATURE_ALWAYS	( 3*32+21) /* "" Always-present feature */
-#define X86_FEATURE_XTOPOLOGY	( 3*32+22) /* cpu topology enum extensions */
-#define X86_FEATURE_TSC_RELIABLE ( 3*32+23) /* TSC is known to be reliable */
-#define X86_FEATURE_NONSTOP_TSC	( 3*32+24) /* TSC does not stop in C states */
-#define X86_FEATURE_CPUID	( 3*32+25) /* CPU has CPUID instruction itself */
-#define X86_FEATURE_EXTD_APICID	( 3*32+26) /* has extended APICID (8 bits) */
-#define X86_FEATURE_AMD_DCM     ( 3*32+27) /* multi-node processor */
-#define X86_FEATURE_APERFMPERF	( 3*32+28) /* APERFMPERF */
-#define X86_FEATURE_NONSTOP_TSC_S3 ( 3*32+30) /* TSC doesn't stop in S3 state */
-#define X86_FEATURE_TSC_KNOWN_FREQ ( 3*32+31) /* TSC has known frequency */
+#define X86_FEATURE_CXMMX		( 3*32+ 0) /* Cyrix MMX extensions */
+#define X86_FEATURE_K6_MTRR		( 3*32+ 1) /* AMD K6 nonstandard MTRRs */
+#define X86_FEATURE_CYRIX_ARR		( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */
+#define X86_FEATURE_CENTAUR_MCR		( 3*32+ 3) /* Centaur MCRs (= MTRRs) */
+
+/* CPU types for specific tunings: */
+#define X86_FEATURE_K8			( 3*32+ 4) /* "" Opteron, Athlon64 */
+#define X86_FEATURE_K7			( 3*32+ 5) /* "" Athlon */
+#define X86_FEATURE_P3			( 3*32+ 6) /* "" P3 */
+#define X86_FEATURE_P4			( 3*32+ 7) /* "" P4 */
+#define X86_FEATURE_CONSTANT_TSC	( 3*32+ 8) /* TSC ticks at a constant rate */
+#define X86_FEATURE_UP			( 3*32+ 9) /* SMP kernel running on UP */
+#define X86_FEATURE_ART			( 3*32+10) /* Always running timer (ART) */
+#define X86_FEATURE_ARCH_PERFMON	( 3*32+11) /* Intel Architectural PerfMon */
+#define X86_FEATURE_PEBS		( 3*32+12) /* Precise-Event Based Sampling */
+#define X86_FEATURE_BTS			( 3*32+13) /* Branch Trace Store */
+#define X86_FEATURE_SYSCALL32		( 3*32+14) /* "" syscall in IA32 userspace */
+#define X86_FEATURE_SYSENTER32		( 3*32+15) /* "" sysenter in IA32 userspace */
+#define X86_FEATURE_REP_GOOD		( 3*32+16) /* REP microcode works well */
+#define X86_FEATURE_MFENCE_RDTSC	( 3*32+17) /* "" MFENCE synchronizes RDTSC */
+#define X86_FEATURE_LFENCE_RDTSC	( 3*32+18) /* "" LFENCE synchronizes RDTSC */
+#define X86_FEATURE_ACC_POWER		( 3*32+19) /* AMD Accumulated Power Mechanism */
+#define X86_FEATURE_NOPL		( 3*32+20) /* The NOPL (0F 1F) instructions */
+#define X86_FEATURE_ALWAYS		( 3*32+21) /* "" Always-present feature */
+#define X86_FEATURE_XTOPOLOGY		( 3*32+22) /* CPU topology enum extensions */
+#define X86_FEATURE_TSC_RELIABLE	( 3*32+23) /* TSC is known to be reliable */
+#define X86_FEATURE_NONSTOP_TSC		( 3*32+24) /* TSC does not stop in C states */
+#define X86_FEATURE_CPUID		( 3*32+25) /* CPU has CPUID instruction itself */
+#define X86_FEATURE_EXTD_APICID		( 3*32+26) /* Extended APICID (8 bits) */
+#define X86_FEATURE_AMD_DCM		( 3*32+27) /* AMD multi-node processor */
+#define X86_FEATURE_APERFMPERF		( 3*32+28) /* P-State hardware coordination feedback capability (APERF/MPERF MSRs) */
+#define X86_FEATURE_NONSTOP_TSC_S3	( 3*32+30) /* TSC doesn't stop in S3 state */
+#define X86_FEATURE_TSC_KNOWN_FREQ	( 3*32+31) /* TSC has known frequency */
 
-/* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
-#define X86_FEATURE_XMM3	( 4*32+ 0) /* "pni" SSE-3 */
-#define X86_FEATURE_PCLMULQDQ	( 4*32+ 1) /* PCLMULQDQ instruction */
-#define X86_FEATURE_DTES64	( 4*32+ 2) /* 64-bit Debug Store */
-#define X86_FEATURE_MWAIT	( 4*32+ 3) /* "monitor" Monitor/Mwait support */
-#define X86_FEATURE_DSCPL	( 4*32+ 4) /* "ds_cpl" CPL Qual. Debug Store */
-#define X86_FEATURE_VMX		( 4*32+ 5) /* Hardware virtualization */
-#define X86_FEATURE_SMX		( 4*32+ 6) /* Safer mode */
-#define X86_FEATURE_EST		( 4*32+ 7) /* Enhanced SpeedStep */
-#define X86_FEATURE_TM2		( 4*32+ 8) /* Thermal Monitor 2 */
-#define X86_FEATURE_SSSE3	( 4*32+ 9) /* Supplemental SSE-3 */
-#define X86_FEATURE_CID		( 4*32+10) /* Context ID */
-#define X86_FEATURE_SDBG	( 4*32+11) /* Silicon Debug */
-#define X86_FEATURE_FMA		( 4*32+12) /* Fused multiply-add */
-#define X86_FEATURE_CX16	( 4*32+13) /* CMPXCHG16B */
-#define X86_FEATURE_XTPR	( 4*32+14) /* Send Task Priority Messages */
-#define X86_FEATURE_PDCM	( 4*32+15) /* Performance Capabilities */
-#define X86_FEATURE_PCID	( 4*32+17) /* Process Context Identifiers */
-#define X86_FEATURE_DCA		( 4*32+18) /* Direct Cache Access */
-#define X86_FEATURE_XMM4_1	( 4*32+19) /* "sse4_1" SSE-4.1 */
-#define X86_FEATURE_XMM4_2	( 4*32+20) /* "sse4_2" SSE-4.2 */
-#define X86_FEATURE_X2APIC	( 4*32+21) /* x2APIC */
-#define X86_FEATURE_MOVBE	( 4*32+22) /* MOVBE instruction */
-#define X86_FEATURE_POPCNT      ( 4*32+23) /* POPCNT instruction */
-#define X86_FEATURE_TSC_DEADLINE_TIMER	( 4*32+24) /* Tsc deadline timer */
-#define X86_FEATURE_AES		( 4*32+25) /* AES instructions */
-#define X86_FEATURE_XSAVE	( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */
-#define X86_FEATURE_OSXSAVE	( 4*32+27) /* "" XSAVE enabled in the OS */
-#define X86_FEATURE_AVX		( 4*32+28) /* Advanced Vector Extensions */
-#define X86_FEATURE_F16C	( 4*32+29) /* 16-bit fp conversions */
-#define X86_FEATURE_RDRAND	( 4*32+30) /* The RDRAND instruction */
-#define X86_FEATURE_HYPERVISOR	( 4*32+31) /* Running on a hypervisor */
+/* Intel-defined CPU features, CPUID level 0x00000001 (ECX), word 4 */
+#define X86_FEATURE_XMM3		( 4*32+ 0) /* "pni" SSE-3 */
+#define X86_FEATURE_PCLMULQDQ		( 4*32+ 1) /* PCLMULQDQ instruction */
+#define X86_FEATURE_DTES64		( 4*32+ 2) /* 64-bit Debug Store */
+#define X86_FEATURE_MWAIT		( 4*32+ 3) /* "monitor" MONITOR/MWAIT support */
+#define X86_FEATURE_DSCPL		( 4*32+ 4) /* "ds_cpl" CPL-qualified (filtered) Debug Store */
+#define X86_FEATURE_VMX			( 4*32+ 5) /* Hardware virtualization */
+#define X86_FEATURE_SMX			( 4*32+ 6) /* Safer Mode eXtensions */
+#define X86_FEATURE_EST			( 4*32+ 7) /* Enhanced SpeedStep */
+#define X86_FEATURE_TM2			( 4*32+ 8) /* Thermal Monitor 2 */
+#define X86_FEATURE_SSSE3		( 4*32+ 9) /* Supplemental SSE-3 */
+#define X86_FEATURE_CID			( 4*32+10) /* Context ID */
+#define X86_FEATURE_SDBG		( 4*32+11) /* Silicon Debug */
+#define X86_FEATURE_FMA			( 4*32+12) /* Fused multiply-add */
+#define X86_FEATURE_CX16		( 4*32+13) /* CMPXCHG16B instruction */
+#define X86_FEATURE_XTPR		( 4*32+14) /* Send Task Priority Messages */
+#define X86_FEATURE_PDCM		( 4*32+15) /* Perf/Debug Capabilities MSR */
+#define X86_FEATURE_PCID		( 4*32+17) /* Process Context Identifiers */
+#define X86_FEATURE_DCA			( 4*32+18) /* Direct Cache Access */
+#define X86_FEATURE_XMM4_1		( 4*32+19) /* "sse4_1" SSE-4.1 */
+#define X86_FEATURE_XMM4_2		( 4*32+20) /* "sse4_2" SSE-4.2 */
+#define X86_FEATURE_X2APIC		( 4*32+21) /* X2APIC */
+#define X86_FEATURE_MOVBE		( 4*32+22) /* MOVBE instruction */
+#define X86_FEATURE_POPCNT		( 4*32+23) /* POPCNT instruction */
+#define X86_FEATURE_TSC_DEADLINE_TIMER	( 4*32+24) /* TSC deadline timer */
+#define X86_FEATURE_AES			( 4*32+25) /* AES instructions */
+#define X86_FEATURE_XSAVE		( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV instructions */
+#define X86_FEATURE_OSXSAVE		( 4*32+27) /* "" XSAVE instruction enabled in the OS */
+#define X86_FEATURE_AVX			( 4*32+28) /* Advanced Vector Extensions */
+#define X86_FEATURE_F16C		( 4*32+29) /* 16-bit FP conversions */
+#define X86_FEATURE_RDRAND		( 4*32+30) /* RDRAND instruction */
+#define X86_FEATURE_HYPERVISOR		( 4*32+31) /* Running on a hypervisor */
 
 /* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
-#define X86_FEATURE_XSTORE	( 5*32+ 2) /* "rng" RNG present (xstore) */
-#define X86_FEATURE_XSTORE_EN	( 5*32+ 3) /* "rng_en" RNG enabled */
-#define X86_FEATURE_XCRYPT	( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
-#define X86_FEATURE_XCRYPT_EN	( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */
-#define X86_FEATURE_ACE2	( 5*32+ 8) /* Advanced Cryptography Engine v2 */
-#define X86_FEATURE_ACE2_EN	( 5*32+ 9) /* ACE v2 enabled */
-#define X86_FEATURE_PHE		( 5*32+10) /* PadLock Hash Engine */
-#define X86_FEATURE_PHE_EN	( 5*32+11) /* PHE enabled */
-#define X86_FEATURE_PMM		( 5*32+12) /* PadLock Montgomery Multiplier */
-#define X86_FEATURE_PMM_EN	( 5*32+13) /* PMM enabled */
+#define X86_FEATURE_XSTORE		( 5*32+ 2) /* "rng" RNG present (xstore) */
+#define X86_FEATURE_XSTORE_EN		( 5*32+ 3) /* "rng_en" RNG enabled */
+#define X86_FEATURE_XCRYPT		( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
+#define X86_FEATURE_XCRYPT_EN		( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */
+#define X86_FEATURE_ACE2		( 5*32+ 8) /* Advanced Cryptography Engine v2 */
+#define X86_FEATURE_ACE2_EN		( 5*32+ 9) /* ACE v2 enabled */
+#define X86_FEATURE_PHE			( 5*32+10) /* PadLock Hash Engine */
+#define X86_FEATURE_PHE_EN		( 5*32+11) /* PHE enabled */
+#define X86_FEATURE_PMM			( 5*32+12) /* PadLock Montgomery Multiplier */
+#define X86_FEATURE_PMM_EN		( 5*32+13) /* PMM enabled */
 
-/* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */
-#define X86_FEATURE_LAHF_LM	( 6*32+ 0) /* LAHF/SAHF in long mode */
-#define X86_FEATURE_CMP_LEGACY	( 6*32+ 1) /* If yes HyperThreading not valid */
-#define X86_FEATURE_SVM		( 6*32+ 2) /* Secure virtual machine */
-#define X86_FEATURE_EXTAPIC	( 6*32+ 3) /* Extended APIC space */
-#define X86_FEATURE_CR8_LEGACY	( 6*32+ 4) /* CR8 in 32-bit mode */
-#define X86_FEATURE_ABM		( 6*32+ 5) /* Advanced bit manipulation */
-#define X86_FEATURE_SSE4A	( 6*32+ 6) /* SSE-4A */
-#define X86_FEATURE_MISALIGNSSE ( 6*32+ 7) /* Misaligned SSE mode */
-#define X86_FEATURE_3DNOWPREFETCH ( 6*32+ 8) /* 3DNow prefetch instructions */
-#define X86_FEATURE_OSVW	( 6*32+ 9) /* OS Visible Workaround */
-#define X86_FEATURE_IBS		( 6*32+10) /* Instruction Based Sampling */
-#define X86_FEATURE_XOP		( 6*32+11) /* extended AVX instructions */
-#define X86_FEATURE_SKINIT	( 6*32+12) /* SKINIT/STGI instructions */
-#define X86_FEATURE_WDT		( 6*32+13) /* Watchdog timer */
-#define X86_FEATURE_LWP		( 6*32+15) /* Light Weight Profiling */
-#define X86_FEATURE_FMA4	( 6*32+16) /* 4 operands MAC instructions */
-#define X86_FEATURE_TCE		( 6*32+17) /* translation cache extension */
-#define X86_FEATURE_NODEID_MSR	( 6*32+19) /* NodeId MSR */
-#define X86_FEATURE_TBM		( 6*32+21) /* trailing bit manipulations */
-#define X86_FEATURE_TOPOEXT	( 6*32+22) /* topology extensions CPUID leafs */
-#define X86_FEATURE_PERFCTR_CORE ( 6*32+23) /* core performance counter extensions */
-#define X86_FEATURE_PERFCTR_NB  ( 6*32+24) /* NB performance counter extensions */
-#define X86_FEATURE_BPEXT	(6*32+26) /* data breakpoint extension */
-#define X86_FEATURE_PTSC	( 6*32+27) /* performance time-stamp counter */
-#define X86_FEATURE_PERFCTR_LLC	( 6*32+28) /* Last Level Cache performance counter extensions */
-#define X86_FEATURE_MWAITX	( 6*32+29) /* MWAIT extension (MONITORX/MWAITX) */
+/* More extended AMD flags: CPUID level 0x80000001, ECX, word 6 */
+#define X86_FEATURE_LAHF_LM		( 6*32+ 0) /* LAHF/SAHF in long mode */
+#define X86_FEATURE_CMP_LEGACY		( 6*32+ 1) /* If yes HyperThreading not valid */
+#define X86_FEATURE_SVM			( 6*32+ 2) /* Secure Virtual Machine */
+#define X86_FEATURE_EXTAPIC		( 6*32+ 3) /* Extended APIC space */
+#define X86_FEATURE_CR8_LEGACY		( 6*32+ 4) /* CR8 in 32-bit mode */
+#define X86_FEATURE_ABM			( 6*32+ 5) /* Advanced bit manipulation */
+#define X86_FEATURE_SSE4A		( 6*32+ 6) /* SSE-4A */
+#define X86_FEATURE_MISALIGNSSE		( 6*32+ 7) /* Misaligned SSE mode */
+#define X86_FEATURE_3DNOWPREFETCH	( 6*32+ 8) /* 3DNow prefetch instructions */
+#define X86_FEATURE_OSVW		( 6*32+ 9) /* OS Visible Workaround */
+#define X86_FEATURE_IBS			( 6*32+10) /* Instruction Based Sampling */
+#define X86_FEATURE_XOP			( 6*32+11) /* extended AVX instructions */
+#define X86_FEATURE_SKINIT		( 6*32+12) /* SKINIT/STGI instructions */
+#define X86_FEATURE_WDT			( 6*32+13) /* Watchdog timer */
+#define X86_FEATURE_LWP			( 6*32+15) /* Light Weight Profiling */
+#define X86_FEATURE_FMA4		( 6*32+16) /* 4 operands MAC instructions */
+#define X86_FEATURE_TCE			( 6*32+17) /* Translation Cache Extension */
+#define X86_FEATURE_NODEID_MSR		( 6*32+19) /* NodeId MSR */
+#define X86_FEATURE_TBM			( 6*32+21) /* Trailing Bit Manipulations */
+#define X86_FEATURE_TOPOEXT		( 6*32+22) /* Topology extensions CPUID leafs */
+#define X86_FEATURE_PERFCTR_CORE	( 6*32+23) /* Core performance counter extensions */
+#define X86_FEATURE_PERFCTR_NB		( 6*32+24) /* NB performance counter extensions */
+#define X86_FEATURE_BPEXT		( 6*32+26) /* Data breakpoint extension */
+#define X86_FEATURE_PTSC		( 6*32+27) /* Performance time-stamp counter */
+#define X86_FEATURE_PERFCTR_LLC		( 6*32+28) /* Last Level Cache performance counter extensions */
+#define X86_FEATURE_MWAITX		( 6*32+29) /* MWAIT extension (MONITORX/MWAITX instructions) */
 
 /*
  * Auxiliary flags: Linux defined - For features scattered in various
@@ -186,146 +190,154 @@
  *
  * Reuse free bits when adding new feature flags!
  */
-#define X86_FEATURE_RING3MWAIT	( 7*32+ 0) /* Ring 3 MONITOR/MWAIT */
-#define X86_FEATURE_CPUID_FAULT ( 7*32+ 1) /* Intel CPUID faulting */
-#define X86_FEATURE_CPB		( 7*32+ 2) /* AMD Core Performance Boost */
-#define X86_FEATURE_EPB		( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
-#define X86_FEATURE_CAT_L3	( 7*32+ 4) /* Cache Allocation Technology L3 */
-#define X86_FEATURE_CAT_L2	( 7*32+ 5) /* Cache Allocation Technology L2 */
-#define X86_FEATURE_CDP_L3	( 7*32+ 6) /* Code and Data Prioritization L3 */
+#define X86_FEATURE_RING3MWAIT		( 7*32+ 0) /* Ring 3 MONITOR/MWAIT instructions */
+#define X86_FEATURE_CPUID_FAULT		( 7*32+ 1) /* Intel CPUID faulting */
+#define X86_FEATURE_CPB			( 7*32+ 2) /* AMD Core Performance Boost */
+#define X86_FEATURE_EPB			( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
+#define X86_FEATURE_CAT_L3		( 7*32+ 4) /* Cache Allocation Technology L3 */
+#define X86_FEATURE_CAT_L2		( 7*32+ 5) /* Cache Allocation Technology L2 */
+#define X86_FEATURE_CDP_L3		( 7*32+ 6) /* Code and Data Prioritization L3 */
 
-#define X86_FEATURE_HW_PSTATE	( 7*32+ 8) /* AMD HW-PState */
-#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
-#define X86_FEATURE_SME		( 7*32+10) /* AMD Secure Memory Encryption */
+#define X86_FEATURE_HW_PSTATE		( 7*32+ 8) /* AMD HW-PState */
+#define X86_FEATURE_PROC_FEEDBACK	( 7*32+ 9) /* AMD ProcFeedbackInterface */
+#define X86_FEATURE_SME			( 7*32+10) /* AMD Secure Memory Encryption */
 
-#define X86_FEATURE_INTEL_PPIN	( 7*32+14) /* Intel Processor Inventory Number */
-#define X86_FEATURE_INTEL_PT	( 7*32+15) /* Intel Processor Trace */
-#define X86_FEATURE_AVX512_4VNNIW (7*32+16) /* AVX-512 Neural Network Instructions */
-#define X86_FEATURE_AVX512_4FMAPS (7*32+17) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_INTEL_PPIN		( 7*32+14) /* Intel Processor Inventory Number */
+#define X86_FEATURE_INTEL_PT		( 7*32+15) /* Intel Processor Trace */
+#define X86_FEATURE_AVX512_4VNNIW	( 7*32+16) /* AVX-512 Neural Network Instructions */
+#define X86_FEATURE_AVX512_4FMAPS	( 7*32+17) /* AVX-512 Multiply Accumulation Single precision */
 
-#define X86_FEATURE_MBA         ( 7*32+18) /* Memory Bandwidth Allocation */
+#define X86_FEATURE_MBA			( 7*32+18) /* Memory Bandwidth Allocation */
 
 /* Virtualization flags: Linux defined, word 8 */
-#define X86_FEATURE_TPR_SHADOW  ( 8*32+ 0) /* Intel TPR Shadow */
-#define X86_FEATURE_VNMI        ( 8*32+ 1) /* Intel Virtual NMI */
-#define X86_FEATURE_FLEXPRIORITY ( 8*32+ 2) /* Intel FlexPriority */
-#define X86_FEATURE_EPT         ( 8*32+ 3) /* Intel Extended Page Table */
-#define X86_FEATURE_VPID        ( 8*32+ 4) /* Intel Virtual Processor ID */
+#define X86_FEATURE_TPR_SHADOW		( 8*32+ 0) /* Intel TPR Shadow */
+#define X86_FEATURE_VNMI		( 8*32+ 1) /* Intel Virtual NMI */
+#define X86_FEATURE_FLEXPRIORITY	( 8*32+ 2) /* Intel FlexPriority */
+#define X86_FEATURE_EPT			( 8*32+ 3) /* Intel Extended Page Table */
+#define X86_FEATURE_VPID		( 8*32+ 4) /* Intel Virtual Processor ID */
 
-#define X86_FEATURE_VMMCALL     ( 8*32+15) /* Prefer vmmcall to vmcall */
-#define X86_FEATURE_XENPV       ( 8*32+16) /* "" Xen paravirtual guest */
+#define X86_FEATURE_VMMCALL		( 8*32+15) /* Prefer VMMCALL to VMCALL */
+#define X86_FEATURE_XENPV		( 8*32+16) /* "" Xen paravirtual guest */
 
 
-/* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
-#define X86_FEATURE_FSGSBASE	( 9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
-#define X86_FEATURE_TSC_ADJUST	( 9*32+ 1) /* TSC adjustment MSR 0x3b */
-#define X86_FEATURE_BMI1	( 9*32+ 3) /* 1st group bit manipulation extensions */
-#define X86_FEATURE_HLE		( 9*32+ 4) /* Hardware Lock Elision */
-#define X86_FEATURE_AVX2	( 9*32+ 5) /* AVX2 instructions */
-#define X86_FEATURE_SMEP	( 9*32+ 7) /* Supervisor Mode Execution Protection */
-#define X86_FEATURE_BMI2	( 9*32+ 8) /* 2nd group bit manipulation extensions */
-#define X86_FEATURE_ERMS	( 9*32+ 9) /* Enhanced REP MOVSB/STOSB */
-#define X86_FEATURE_INVPCID	( 9*32+10) /* Invalidate Processor Context ID */
-#define X86_FEATURE_RTM		( 9*32+11) /* Restricted Transactional Memory */
-#define X86_FEATURE_CQM		( 9*32+12) /* Cache QoS Monitoring */
-#define X86_FEATURE_MPX		( 9*32+14) /* Memory Protection Extension */
-#define X86_FEATURE_RDT_A	( 9*32+15) /* Resource Director Technology Allocation */
-#define X86_FEATURE_AVX512F	( 9*32+16) /* AVX-512 Foundation */
-#define X86_FEATURE_AVX512DQ	( 9*32+17) /* AVX-512 DQ (Double/Quad granular) Instructions */
-#define X86_FEATURE_RDSEED	( 9*32+18) /* The RDSEED instruction */
-#define X86_FEATURE_ADX		( 9*32+19) /* The ADCX and ADOX instructions */
-#define X86_FEATURE_SMAP	( 9*32+20) /* Supervisor Mode Access Prevention */
-#define X86_FEATURE_AVX512IFMA  ( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
-#define X86_FEATURE_CLFLUSHOPT	( 9*32+23) /* CLFLUSHOPT instruction */
-#define X86_FEATURE_CLWB	( 9*32+24) /* CLWB instruction */
-#define X86_FEATURE_AVX512PF	( 9*32+26) /* AVX-512 Prefetch */
-#define X86_FEATURE_AVX512ER	( 9*32+27) /* AVX-512 Exponential and Reciprocal */
-#define X86_FEATURE_AVX512CD	( 9*32+28) /* AVX-512 Conflict Detection */
-#define X86_FEATURE_SHA_NI	( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
-#define X86_FEATURE_AVX512BW	( 9*32+30) /* AVX-512 BW (Byte/Word granular) Instructions */
-#define X86_FEATURE_AVX512VL	( 9*32+31) /* AVX-512 VL (128/256 Vector Length) Extensions */
+/* Intel-defined CPU features, CPUID level 0x00000007:0 (EBX), word 9 */
+#define X86_FEATURE_FSGSBASE		( 9*32+ 0) /* RDFSBASE, WRFSBASE, RDGSBASE, WRGSBASE instructions*/
+#define X86_FEATURE_TSC_ADJUST		( 9*32+ 1) /* TSC adjustment MSR 0x3B */
+#define X86_FEATURE_BMI1		( 9*32+ 3) /* 1st group bit manipulation extensions */
+#define X86_FEATURE_HLE			( 9*32+ 4) /* Hardware Lock Elision */
+#define X86_FEATURE_AVX2		( 9*32+ 5) /* AVX2 instructions */
+#define X86_FEATURE_SMEP		( 9*32+ 7) /* Supervisor Mode Execution Protection */
+#define X86_FEATURE_BMI2		( 9*32+ 8) /* 2nd group bit manipulation extensions */
+#define X86_FEATURE_ERMS		( 9*32+ 9) /* Enhanced REP MOVSB/STOSB instructions */
+#define X86_FEATURE_INVPCID		( 9*32+10) /* Invalidate Processor Context ID */
+#define X86_FEATURE_RTM			( 9*32+11) /* Restricted Transactional Memory */
+#define X86_FEATURE_CQM			( 9*32+12) /* Cache QoS Monitoring */
+#define X86_FEATURE_MPX			( 9*32+14) /* Memory Protection Extension */
+#define X86_FEATURE_RDT_A		( 9*32+15) /* Resource Director Technology Allocation */
+#define X86_FEATURE_AVX512F		( 9*32+16) /* AVX-512 Foundation */
+#define X86_FEATURE_AVX512DQ		( 9*32+17) /* AVX-512 DQ (Double/Quad granular) Instructions */
+#define X86_FEATURE_RDSEED		( 9*32+18) /* RDSEED instruction */
+#define X86_FEATURE_ADX			( 9*32+19) /* ADCX and ADOX instructions */
+#define X86_FEATURE_SMAP		( 9*32+20) /* Supervisor Mode Access Prevention */
+#define X86_FEATURE_AVX512IFMA		( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
+#define X86_FEATURE_CLFLUSHOPT		( 9*32+23) /* CLFLUSHOPT instruction */
+#define X86_FEATURE_CLWB		( 9*32+24) /* CLWB instruction */
+#define X86_FEATURE_AVX512PF		( 9*32+26) /* AVX-512 Prefetch */
+#define X86_FEATURE_AVX512ER		( 9*32+27) /* AVX-512 Exponential and Reciprocal */
+#define X86_FEATURE_AVX512CD		( 9*32+28) /* AVX-512 Conflict Detection */
+#define X86_FEATURE_SHA_NI		( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
+#define X86_FEATURE_AVX512BW		( 9*32+30) /* AVX-512 BW (Byte/Word granular) Instructions */
+#define X86_FEATURE_AVX512VL		( 9*32+31) /* AVX-512 VL (128/256 Vector Length) Extensions */
 
-/* Extended state features, CPUID level 0x0000000d:1 (eax), word 10 */
-#define X86_FEATURE_XSAVEOPT	(10*32+ 0) /* XSAVEOPT */
-#define X86_FEATURE_XSAVEC	(10*32+ 1) /* XSAVEC */
-#define X86_FEATURE_XGETBV1	(10*32+ 2) /* XGETBV with ECX = 1 */
-#define X86_FEATURE_XSAVES	(10*32+ 3) /* XSAVES/XRSTORS */
+/* Extended state features, CPUID level 0x0000000d:1 (EAX), word 10 */
+#define X86_FEATURE_XSAVEOPT		(10*32+ 0) /* XSAVEOPT instruction */
+#define X86_FEATURE_XSAVEC		(10*32+ 1) /* XSAVEC instruction */
+#define X86_FEATURE_XGETBV1		(10*32+ 2) /* XGETBV with ECX = 1 instruction */
+#define X86_FEATURE_XSAVES		(10*32+ 3) /* XSAVES/XRSTORS instructions */
 
-/* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:0 (edx), word 11 */
-#define X86_FEATURE_CQM_LLC	(11*32+ 1) /* LLC QoS if 1 */
+/* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:0 (EDX), word 11 */
+#define X86_FEATURE_CQM_LLC		(11*32+ 1) /* LLC QoS if 1 */
 
-/* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:1 (edx), word 12 */
-#define X86_FEATURE_CQM_OCCUP_LLC (12*32+ 0) /* LLC occupancy monitoring if 1 */
-#define X86_FEATURE_CQM_MBM_TOTAL (12*32+ 1) /* LLC Total MBM monitoring */
-#define X86_FEATURE_CQM_MBM_LOCAL (12*32+ 2) /* LLC Local MBM monitoring */
+/* Intel-defined CPU QoS Sub-leaf, CPUID level 0x0000000F:1 (EDX), word 12 */
+#define X86_FEATURE_CQM_OCCUP_LLC	(12*32+ 0) /* LLC occupancy monitoring */
+#define X86_FEATURE_CQM_MBM_TOTAL	(12*32+ 1) /* LLC Total MBM monitoring */
+#define X86_FEATURE_CQM_MBM_LOCAL	(12*32+ 2) /* LLC Local MBM monitoring */
 
-/* AMD-defined CPU features, CPUID level 0x80000008 (ebx), word 13 */
-#define X86_FEATURE_CLZERO	(13*32+0) /* CLZERO instruction */
-#define X86_FEATURE_IRPERF	(13*32+1) /* Instructions Retired Count */
+/* AMD-defined CPU features, CPUID level 0x80000008 (EBX), word 13 */
+#define X86_FEATURE_CLZERO		(13*32+ 0) /* CLZERO instruction */
+#define X86_FEATURE_IRPERF		(13*32+ 1) /* Instructions Retired Count */
 
-/* Thermal and Power Management Leaf, CPUID level 0x00000006 (eax), word 14 */
-#define X86_FEATURE_DTHERM	(14*32+ 0) /* Digital Thermal Sensor */
-#define X86_FEATURE_IDA		(14*32+ 1) /* Intel Dynamic Acceleration */
-#define X86_FEATURE_ARAT	(14*32+ 2) /* Always Running APIC Timer */
-#define X86_FEATURE_PLN		(14*32+ 4) /* Intel Power Limit Notification */
-#define X86_FEATURE_PTS		(14*32+ 6) /* Intel Package Thermal Status */
-#define X86_FEATURE_HWP		(14*32+ 7) /* Intel Hardware P-states */
-#define X86_FEATURE_HWP_NOTIFY	(14*32+ 8) /* HWP Notification */
-#define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */
-#define X86_FEATURE_HWP_EPP	(14*32+10) /* HWP Energy Perf. Preference */
-#define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */
+/* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
+#define X86_FEATURE_DTHERM		(14*32+ 0) /* Digital Thermal Sensor */
+#define X86_FEATURE_IDA			(14*32+ 1) /* Intel Dynamic Acceleration */
+#define X86_FEATURE_ARAT		(14*32+ 2) /* Always Running APIC Timer */
+#define X86_FEATURE_PLN			(14*32+ 4) /* Intel Power Limit Notification */
+#define X86_FEATURE_PTS			(14*32+ 6) /* Intel Package Thermal Status */
+#define X86_FEATURE_HWP			(14*32+ 7) /* Intel Hardware P-states */
+#define X86_FEATURE_HWP_NOTIFY		(14*32+ 8) /* HWP Notification */
+#define X86_FEATURE_HWP_ACT_WINDOW	(14*32+ 9) /* HWP Activity Window */
+#define X86_FEATURE_HWP_EPP		(14*32+10) /* HWP Energy Perf. Preference */
+#define X86_FEATURE_HWP_PKG_REQ		(14*32+11) /* HWP Package Level Request */
 
-/* AMD SVM Feature Identification, CPUID level 0x8000000a (edx), word 15 */
-#define X86_FEATURE_NPT		(15*32+ 0) /* Nested Page Table support */
-#define X86_FEATURE_LBRV	(15*32+ 1) /* LBR Virtualization support */
-#define X86_FEATURE_SVML	(15*32+ 2) /* "svm_lock" SVM locking MSR */
-#define X86_FEATURE_NRIPS	(15*32+ 3) /* "nrip_save" SVM next_rip save */
-#define X86_FEATURE_TSCRATEMSR  (15*32+ 4) /* "tsc_scale" TSC scaling support */
-#define X86_FEATURE_VMCBCLEAN   (15*32+ 5) /* "vmcb_clean" VMCB clean bits support */
-#define X86_FEATURE_FLUSHBYASID (15*32+ 6) /* flush-by-ASID support */
-#define X86_FEATURE_DECODEASSISTS (15*32+ 7) /* Decode Assists support */
-#define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
-#define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
-#define X86_FEATURE_AVIC	(15*32+13) /* Virtual Interrupt Controller */
-#define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
-#define X86_FEATURE_VGIF	(15*32+16) /* Virtual GIF */
+/* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */
+#define X86_FEATURE_NPT			(15*32+ 0) /* Nested Page Table support */
+#define X86_FEATURE_LBRV		(15*32+ 1) /* LBR Virtualization support */
+#define X86_FEATURE_SVML		(15*32+ 2) /* "svm_lock" SVM locking MSR */
+#define X86_FEATURE_NRIPS		(15*32+ 3) /* "nrip_save" SVM next_rip save */
+#define X86_FEATURE_TSCRATEMSR		(15*32+ 4) /* "tsc_scale" TSC scaling support */
+#define X86_FEATURE_VMCBCLEAN		(15*32+ 5) /* "vmcb_clean" VMCB clean bits support */
+#define X86_FEATURE_FLUSHBYASID		(15*32+ 6) /* flush-by-ASID support */
+#define X86_FEATURE_DECODEASSISTS	(15*32+ 7) /* Decode Assists support */
+#define X86_FEATURE_PAUSEFILTER		(15*32+10) /* filtered pause intercept */
+#define X86_FEATURE_PFTHRESHOLD		(15*32+12) /* pause filter threshold */
+#define X86_FEATURE_AVIC		(15*32+13) /* Virtual Interrupt Controller */
+#define X86_FEATURE_V_VMSAVE_VMLOAD	(15*32+15) /* Virtual VMSAVE VMLOAD */
+#define X86_FEATURE_VGIF		(15*32+16) /* Virtual GIF */
 
-/* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
-#define X86_FEATURE_AVX512VBMI  (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
-#define X86_FEATURE_PKU		(16*32+ 3) /* Protection Keys for Userspace */
-#define X86_FEATURE_OSPKE	(16*32+ 4) /* OS Protection Keys Enable */
-#define X86_FEATURE_AVX512_VPOPCNTDQ (16*32+14) /* POPCNT for vectors of DW/QW */
-#define X86_FEATURE_LA57	(16*32+16) /* 5-level page tables */
-#define X86_FEATURE_RDPID	(16*32+22) /* RDPID instruction */
+/* Intel-defined CPU features, CPUID level 0x00000007:0 (ECX), word 16 */
+#define X86_FEATURE_AVX512VBMI		(16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
+#define X86_FEATURE_UMIP		(16*32+ 2) /* User Mode Instruction Protection */
+#define X86_FEATURE_PKU			(16*32+ 3) /* Protection Keys for Userspace */
+#define X86_FEATURE_OSPKE		(16*32+ 4) /* OS Protection Keys Enable */
+#define X86_FEATURE_AVX512_VBMI2	(16*32+ 6) /* Additional AVX512 Vector Bit Manipulation Instructions */
+#define X86_FEATURE_GFNI		(16*32+ 8) /* Galois Field New Instructions */
+#define X86_FEATURE_VAES		(16*32+ 9) /* Vector AES */
+#define X86_FEATURE_VPCLMULQDQ		(16*32+10) /* Carry-Less Multiplication Double Quadword */
+#define X86_FEATURE_AVX512_VNNI		(16*32+11) /* Vector Neural Network Instructions */
+#define X86_FEATURE_AVX512_BITALG	(16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
+#define X86_FEATURE_AVX512_VPOPCNTDQ	(16*32+14) /* POPCNT for vectors of DW/QW */
+#define X86_FEATURE_LA57		(16*32+16) /* 5-level page tables */
+#define X86_FEATURE_RDPID		(16*32+22) /* RDPID instruction */
 
-/* AMD-defined CPU features, CPUID level 0x80000007 (ebx), word 17 */
-#define X86_FEATURE_OVERFLOW_RECOV (17*32+0) /* MCA overflow recovery support */
-#define X86_FEATURE_SUCCOR	(17*32+1) /* Uncorrectable error containment and recovery */
-#define X86_FEATURE_SMCA	(17*32+3) /* Scalable MCA */
+/* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */
+#define X86_FEATURE_OVERFLOW_RECOV	(17*32+ 0) /* MCA overflow recovery support */
+#define X86_FEATURE_SUCCOR		(17*32+ 1) /* Uncorrectable error containment and recovery */
+#define X86_FEATURE_SMCA		(17*32+ 3) /* Scalable MCA */
 
 /*
  * BUG word(s)
  */
-#define X86_BUG(x)		(NCAPINTS*32 + (x))
+#define X86_BUG(x)			(NCAPINTS*32 + (x))
 
-#define X86_BUG_F00F		X86_BUG(0) /* Intel F00F */
-#define X86_BUG_FDIV		X86_BUG(1) /* FPU FDIV */
-#define X86_BUG_COMA		X86_BUG(2) /* Cyrix 6x86 coma */
-#define X86_BUG_AMD_TLB_MMATCH	X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */
-#define X86_BUG_AMD_APIC_C1E	X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */
-#define X86_BUG_11AP		X86_BUG(5) /* Bad local APIC aka 11AP */
-#define X86_BUG_FXSAVE_LEAK	X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
-#define X86_BUG_CLFLUSH_MONITOR	X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
-#define X86_BUG_SYSRET_SS_ATTRS	X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
+#define X86_BUG_F00F			X86_BUG(0) /* Intel F00F */
+#define X86_BUG_FDIV			X86_BUG(1) /* FPU FDIV */
+#define X86_BUG_COMA			X86_BUG(2) /* Cyrix 6x86 coma */
+#define X86_BUG_AMD_TLB_MMATCH		X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */
+#define X86_BUG_AMD_APIC_C1E		X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */
+#define X86_BUG_11AP			X86_BUG(5) /* Bad local APIC aka 11AP */
+#define X86_BUG_FXSAVE_LEAK		X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
+#define X86_BUG_CLFLUSH_MONITOR		X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
+#define X86_BUG_SYSRET_SS_ATTRS		X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
 #ifdef CONFIG_X86_32
 /*
  * 64-bit kernels don't use X86_BUG_ESPFIX.  Make the define conditional
  * to avoid confusion.
  */
-#define X86_BUG_ESPFIX		X86_BUG(9) /* "" IRET to 16-bit SS corrupts ESP/RSP high bits */
+#define X86_BUG_ESPFIX			X86_BUG(9) /* "" IRET to 16-bit SS corrupts ESP/RSP high bits */
 #endif
-#define X86_BUG_NULL_SEG	X86_BUG(10) /* Nulling a selector preserves the base */
-#define X86_BUG_SWAPGS_FENCE	X86_BUG(11) /* SWAPGS without input dep on GS */
-#define X86_BUG_MONITOR		X86_BUG(12) /* IPI required to wake up remote CPU */
-#define X86_BUG_AMD_E400	X86_BUG(13) /* CPU is among the affected by Erratum 400 */
+#define X86_BUG_NULL_SEG		X86_BUG(10) /* Nulling a selector preserves the base */
+#define X86_BUG_SWAPGS_FENCE		X86_BUG(11) /* SWAPGS without input dep on GS */
+#define X86_BUG_MONITOR			X86_BUG(12) /* IPI required to wake up remote CPU */
+#define X86_BUG_AMD_E400		X86_BUG(13) /* CPU is among the affected by Erratum 400 */
+
 #endif /* _ASM_X86_CPUFEATURES_H */
diff --git a/arch/x86/include/asm/cpumask.h b/arch/x86/include/asm/cpumask.h
index 61c852fa346b..6722ffcef2e6 100644
--- a/arch/x86/include/asm/cpumask.h
+++ b/arch/x86/include/asm/cpumask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CPUMASK_H
 #define _ASM_X86_CPUMASK_H
 #ifndef __ASSEMBLY__
diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
index f498411f2500..a7adb2bfbf0b 100644
--- a/arch/x86/include/asm/crash.h
+++ b/arch/x86/include/asm/crash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CRASH_H
 #define _ASM_X86_CRASH_H
 
diff --git a/arch/x86/include/asm/crypto/aes.h b/arch/x86/include/asm/crypto/aes.h
index 80545a1cbe39..c508521dd190 100644
--- a/arch/x86/include/asm/crypto/aes.h
+++ b/arch/x86/include/asm/crypto/aes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_AES_H
 #define ASM_X86_AES_H
 
diff --git a/arch/x86/include/asm/crypto/camellia.h b/arch/x86/include/asm/crypto/camellia.h
index bb93333d9200..10f8d590bcfe 100644
--- a/arch/x86/include/asm/crypto/camellia.h
+++ b/arch/x86/include/asm/crypto/camellia.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_CAMELLIA_H
 #define ASM_X86_CAMELLIA_H
 
diff --git a/arch/x86/include/asm/crypto/glue_helper.h b/arch/x86/include/asm/crypto/glue_helper.h
index ed8b66de541f..553a03de55c3 100644
--- a/arch/x86/include/asm/crypto/glue_helper.h
+++ b/arch/x86/include/asm/crypto/glue_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared glue code for 128bit block ciphers
  */
diff --git a/arch/x86/include/asm/crypto/serpent-avx.h b/arch/x86/include/asm/crypto/serpent-avx.h
index 33c2b8a435da..c958b7bd0fcb 100644
--- a/arch/x86/include/asm/crypto/serpent-avx.h
+++ b/arch/x86/include/asm/crypto/serpent-avx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_SERPENT_AVX_H
 #define ASM_X86_SERPENT_AVX_H
 
diff --git a/arch/x86/include/asm/crypto/serpent-sse2.h b/arch/x86/include/asm/crypto/serpent-sse2.h
index e6e77dffbdab..1a345e8a7496 100644
--- a/arch/x86/include/asm/crypto/serpent-sse2.h
+++ b/arch/x86/include/asm/crypto/serpent-sse2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_SERPENT_SSE2_H
 #define ASM_X86_SERPENT_SSE2_H
 
diff --git a/arch/x86/include/asm/crypto/twofish.h b/arch/x86/include/asm/crypto/twofish.h
index 878c51ceebb5..65bb80adba3e 100644
--- a/arch/x86/include/asm/crypto/twofish.h
+++ b/arch/x86/include/asm/crypto/twofish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_TWOFISH_H
 #define ASM_X86_TWOFISH_H
 
diff --git a/arch/x86/include/asm/current.h b/arch/x86/include/asm/current.h
index 9476c04ee635..3e204e6140b5 100644
--- a/arch/x86/include/asm/current.h
+++ b/arch/x86/include/asm/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CURRENT_H
 #define _ASM_X86_CURRENT_H
 
diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h
index 12cb66f6d3a5..4505ac2735ad 100644
--- a/arch/x86/include/asm/debugreg.h
+++ b/arch/x86/include/asm/debugreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DEBUGREG_H
 #define _ASM_X86_DEBUGREG_H
 
diff --git a/arch/x86/include/asm/delay.h b/arch/x86/include/asm/delay.h
index 36a760bda462..de9e7841f953 100644
--- a/arch/x86/include/asm/delay.h
+++ b/arch/x86/include/asm/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DELAY_H
 #define _ASM_X86_DELAY_H
 
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 1a2ba368da39..4011cb03ef08 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DESC_H
 #define _ASM_X86_DESC_H
 
@@ -121,7 +122,6 @@ static inline int desc_empty(const void *ptr)
 #define load_ldt(ldt)				asm volatile("lldt %0"::"m" (ldt))
 
 #define store_gdt(dtr)				native_store_gdt(dtr)
-#define store_idt(dtr)				native_store_idt(dtr)
 #define store_tr(tr)				(tr = native_store_tr())
 
 #define load_TLS(t, cpu)			native_load_tls(t, cpu)
@@ -228,7 +228,7 @@ static inline void native_store_gdt(struct desc_ptr *dtr)
 	asm volatile("sgdt %0":"=m" (*dtr));
 }
 
-static inline void native_store_idt(struct desc_ptr *dtr)
+static inline void store_idt(struct desc_ptr *dtr)
 {
 	asm volatile("sidt %0":"=m" (*dtr));
 }
@@ -393,7 +393,7 @@ static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
 void update_intr_gate(unsigned int n, const void *addr);
 void alloc_intr_gate(unsigned int n, const void *addr);
 
-extern unsigned long used_vectors[];
+extern unsigned long system_vectors[];
 
 #ifdef CONFIG_X86_64
 DECLARE_PER_CPU(u32, debug_idt_ctr);
diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
index 346d252029b7..a91f3b6e4f2a 100644
--- a/arch/x86/include/asm/desc_defs.h
+++ b/arch/x86/include/asm/desc_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Written 2000 by Andi Kleen */
 #ifndef _ASM_X86_DESC_DEFS_H
 #define _ASM_X86_DESC_DEFS_H
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 1b3ef26e77df..5e12c63b47aa 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DEVICE_H
 #define _ASM_X86_DEVICE_H
 
diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h
index c10c9128f54e..14d6d5007314 100644
--- a/arch/x86/include/asm/disabled-features.h
+++ b/arch/x86/include/asm/disabled-features.h
@@ -16,6 +16,12 @@
 # define DISABLE_MPX	(1<<(X86_FEATURE_MPX & 31))
 #endif
 
+#ifdef CONFIG_X86_INTEL_UMIP
+# define DISABLE_UMIP	0
+#else
+# define DISABLE_UMIP	(1<<(X86_FEATURE_UMIP & 31))
+#endif
+
 #ifdef CONFIG_X86_64
 # define DISABLE_VME		(1<<(X86_FEATURE_VME & 31))
 # define DISABLE_K6_MTRR	(1<<(X86_FEATURE_K6_MTRR & 31))
@@ -63,7 +69,7 @@
 #define DISABLED_MASK13	0
 #define DISABLED_MASK14	0
 #define DISABLED_MASK15	0
-#define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57)
+#define DISABLED_MASK16	(DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP)
 #define DISABLED_MASK17	0
 #define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 18)
 
diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
index af95c47d5c9e..20a46150e0a8 100644
--- a/arch/x86/include/asm/div64.h
+++ b/arch/x86/include/asm/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DIV64_H
 #define _ASM_X86_DIV64_H
 
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index 1387dafdba2d..836ca1178a6a 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DMA_MAPPING_H
 #define _ASM_X86_DMA_MAPPING_H
 
diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h
index fe884e18fa6e..00f7cf45e699 100644
--- a/arch/x86/include/asm/dma.h
+++ b/arch/x86/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
index a8e15b04565b..0ab2ab27ad1f 100644
--- a/arch/x86/include/asm/dmi.h
+++ b/arch/x86/include/asm/dmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DMI_H
 #define _ASM_X86_DMI_H
 
diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h
index b7a1ab865d68..ae391f609840 100644
--- a/arch/x86/include/asm/dwarf2.h
+++ b/arch/x86/include/asm/dwarf2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_DWARF2_H
 #define _ASM_X86_DWARF2_H
 
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
index cd266d830e49..62be73b23d5c 100644
--- a/arch/x86/include/asm/e820/api.h
+++ b/arch/x86/include/asm/e820/api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_E820_API_H
 #define _ASM_E820_API_H
 
diff --git a/arch/x86/include/asm/e820/types.h b/arch/x86/include/asm/e820/types.h
index 4adeed03a9a1..c3aa4b5e49e2 100644
--- a/arch/x86/include/asm/e820/types.h
+++ b/arch/x86/include/asm/e820/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_E820_TYPES_H
 #define _ASM_E820_TYPES_H
 
diff --git a/arch/x86/include/asm/edac.h b/arch/x86/include/asm/edac.h
index cf8fdf83b231..426fc53ff803 100644
--- a/arch/x86/include/asm/edac.h
+++ b/arch/x86/include/asm/edac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_EDAC_H
 #define _ASM_X86_EDAC_H
 
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 796ff6c1aa53..85f6ccb80b91 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_EFI_H
 #define _ASM_X86_EFI_H
 
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 04330c8d9af9..3a091cea36c5 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ELF_H
 #define _ASM_X86_ELF_H
 
@@ -252,7 +253,7 @@ extern int force_personality32;
  * space open for things that want to use the area for 32-bit pointers.
  */
 #define ELF_ET_DYN_BASE		(mmap_is_ia32() ? 0x000400000UL : \
-						  (TASK_SIZE / 3 * 2))
+						  (DEFAULT_MAP_WINDOW / 3 * 2))
 
 /* This yields a mask that user programs can use to figure out what
    instruction set this CPU supports.  This could be done in user space,
diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
index 77a99ac06d00..2abde717db31 100644
--- a/arch/x86/include/asm/emergency-restart.h
+++ b/arch/x86/include/asm/emergency-restart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_EMERGENCY_RESTART_H
 #define _ASM_X86_EMERGENCY_RESTART_H
 
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h
index aa15d1f7e530..416422762845 100644
--- a/arch/x86/include/asm/entry_arch.h
+++ b/arch/x86/include/asm/entry_arch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is designed to contain the BUILD_INTERRUPT specifications for
  * all of the extra named interrupt vectors used by the architecture.
diff --git a/arch/x86/include/asm/espfix.h b/arch/x86/include/asm/espfix.h
index ca3ce9ab9385..0211029076ea 100644
--- a/arch/x86/include/asm/espfix.h
+++ b/arch/x86/include/asm/espfix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_ESPFIX_H
 #define _ASM_X86_ESPFIX_H
 
diff --git a/arch/x86/include/asm/export.h b/arch/x86/include/asm/export.h
index 138de56b13eb..2a51d66689c5 100644
--- a/arch/x86/include/asm/export.h
+++ b/arch/x86/include/asm/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_64BIT
 #define KSYM_ALIGN 16
 #endif
diff --git a/arch/x86/include/asm/extable.h b/arch/x86/include/asm/extable.h
index c66d19e3c23e..f9c3a5d502f4 100644
--- a/arch/x86/include/asm/extable.h
+++ b/arch/x86/include/asm/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_EXTABLE_H
 #define _ASM_X86_EXTABLE_H
 /*
diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/fb.h
index c3dd5e71f439..ab4c960146e3 100644
--- a/arch/x86/include/asm/fb.h
+++ b/arch/x86/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_FB_H
 #define _ASM_X86_FB_H
 
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index dcd9fb55e679..b0c505fe9a95 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -104,6 +104,12 @@ enum fixed_addresses {
 	FIX_GDT_REMAP_BEGIN,
 	FIX_GDT_REMAP_END = FIX_GDT_REMAP_BEGIN + NR_CPUS - 1,
 
+#ifdef CONFIG_ACPI_APEI_GHES
+	/* Used for GHES mapping from assorted contexts */
+	FIX_APEI_GHES_IRQ,
+	FIX_APEI_GHES_NMI,
+#endif
+
 	__end_of_permanent_fixed_addresses,
 
 	/*
diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h
index 0877ae018fc9..a9caac9d4a72 100644
--- a/arch/x86/include/asm/fpu/api.h
+++ b/arch/x86/include/asm/fpu/api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1994 Linus Torvalds
  *
diff --git a/arch/x86/include/asm/fpu/internal.h b/arch/x86/include/asm/fpu/internal.h
index 554cdb205d17..a38bf5a1e37a 100644
--- a/arch/x86/include/asm/fpu/internal.h
+++ b/arch/x86/include/asm/fpu/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1994 Linus Torvalds
  *
@@ -23,11 +24,9 @@
 /*
  * High level FPU state handling functions:
  */
-extern void fpu__activate_curr(struct fpu *fpu);
-extern void fpu__activate_fpstate_read(struct fpu *fpu);
-extern void fpu__activate_fpstate_write(struct fpu *fpu);
-extern void fpu__current_fpstate_write_begin(void);
-extern void fpu__current_fpstate_write_end(void);
+extern void fpu__initialize(struct fpu *fpu);
+extern void fpu__prepare_read(struct fpu *fpu);
+extern void fpu__prepare_write(struct fpu *fpu);
 extern void fpu__save(struct fpu *fpu);
 extern void fpu__restore(struct fpu *fpu);
 extern int  fpu__restore_sig(void __user *buf, int ia32_frame);
@@ -120,20 +119,11 @@ extern void fpstate_sanitize_xstate(struct fpu *fpu);
 	err;								\
 })
 
-#define check_insn(insn, output, input...)				\
-({									\
-	int err;							\
+#define kernel_insn(insn, output, input...)				\
 	asm volatile("1:" #insn "\n\t"					\
 		     "2:\n"						\
-		     ".section .fixup,\"ax\"\n"				\
-		     "3:  movl $-1,%[err]\n"				\
-		     "    jmp  2b\n"					\
-		     ".previous\n"					\
-		     _ASM_EXTABLE(1b, 3b)				\
-		     : [err] "=r" (err), output				\
-		     : "0"(0), input);					\
-	err;								\
-})
+		     _ASM_EXTABLE_HANDLE(1b, 2b, ex_handler_fprestore)	\
+		     : output : input)
 
 static inline int copy_fregs_to_user(struct fregs_state __user *fx)
 {
@@ -153,20 +143,16 @@ static inline int copy_fxregs_to_user(struct fxregs_state __user *fx)
 
 static inline void copy_kernel_to_fxregs(struct fxregs_state *fx)
 {
-	int err;
-
 	if (IS_ENABLED(CONFIG_X86_32)) {
-		err = check_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
+		kernel_insn(fxrstor %[fx], "=m" (*fx), [fx] "m" (*fx));
 	} else {
 		if (IS_ENABLED(CONFIG_AS_FXSAVEQ)) {
-			err = check_insn(fxrstorq %[fx], "=m" (*fx), [fx] "m" (*fx));
+			kernel_insn(fxrstorq %[fx], "=m" (*fx), [fx] "m" (*fx));
 		} else {
 			/* See comment in copy_fxregs_to_kernel() below. */
-			err = check_insn(rex64/fxrstor (%[fx]), "=m" (*fx), [fx] "R" (fx), "m" (*fx));
+			kernel_insn(rex64/fxrstor (%[fx]), "=m" (*fx), [fx] "R" (fx), "m" (*fx));
 		}
 	}
-	/* Copying from a kernel buffer to FPU registers should never fail: */
-	WARN_ON_FPU(err);
 }
 
 static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
@@ -183,9 +169,7 @@ static inline int copy_user_to_fxregs(struct fxregs_state __user *fx)
 
 static inline void copy_kernel_to_fregs(struct fregs_state *fx)
 {
-	int err = check_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
-
-	WARN_ON_FPU(err);
+	kernel_insn(frstor %[fx], "=m" (*fx), [fx] "m" (*fx));
 }
 
 static inline int copy_user_to_fregs(struct fregs_state __user *fx)
@@ -281,18 +265,13 @@ static inline void copy_fxregs_to_kernel(struct fpu *fpu)
  * Use XRSTORS to restore context if it is enabled. XRSTORS supports compact
  * XSAVE area format.
  */
-#define XSTATE_XRESTORE(st, lmask, hmask, err)				\
+#define XSTATE_XRESTORE(st, lmask, hmask)				\
 	asm volatile(ALTERNATIVE(XRSTOR,				\
 				 XRSTORS, X86_FEATURE_XSAVES)		\
 		     "\n"						\
-		     "xor %[err], %[err]\n"				\
 		     "3:\n"						\
-		     ".pushsection .fixup,\"ax\"\n"			\
-		     "4: movl $-2, %[err]\n"				\
-		     "jmp 3b\n"						\
-		     ".popsection\n"					\
-		     _ASM_EXTABLE(661b, 4b)				\
-		     : [err] "=r" (err)					\
+		     _ASM_EXTABLE_HANDLE(661b, 3b, ex_handler_fprestore)\
+		     :							\
 		     : "D" (st), "m" (*st), "a" (lmask), "d" (hmask)	\
 		     : "memory")
 
@@ -336,7 +315,10 @@ static inline void copy_kernel_to_xregs_booting(struct xregs_state *xstate)
 	else
 		XSTATE_OP(XRSTOR, xstate, lmask, hmask, err);
 
-	/* We should never fault when copying from a kernel buffer: */
+	/*
+	 * We should never fault when copying from a kernel buffer, and the FPU
+	 * state we set at boot time should be valid.
+	 */
 	WARN_ON_FPU(err);
 }
 
@@ -350,7 +332,7 @@ static inline void copy_xregs_to_kernel(struct xregs_state *xstate)
 	u32 hmask = mask >> 32;
 	int err;
 
-	WARN_ON(!alternatives_patched);
+	WARN_ON_FPU(!alternatives_patched);
 
 	XSTATE_XSAVE(xstate, lmask, hmask, err);
 
@@ -365,12 +347,8 @@ static inline void copy_kernel_to_xregs(struct xregs_state *xstate, u64 mask)
 {
 	u32 lmask = mask;
 	u32 hmask = mask >> 32;
-	int err;
-
-	XSTATE_XRESTORE(xstate, lmask, hmask, err);
 
-	/* We should never fault when copying from a kernel buffer: */
-	WARN_ON_FPU(err);
+	XSTATE_XRESTORE(xstate, lmask, hmask);
 }
 
 /*
@@ -526,38 +504,17 @@ static inline int fpregs_state_valid(struct fpu *fpu, unsigned int cpu)
  */
 static inline void fpregs_deactivate(struct fpu *fpu)
 {
-	WARN_ON_FPU(!fpu->fpregs_active);
-
-	fpu->fpregs_active = 0;
 	this_cpu_write(fpu_fpregs_owner_ctx, NULL);
 	trace_x86_fpu_regs_deactivated(fpu);
 }
 
 static inline void fpregs_activate(struct fpu *fpu)
 {
-	WARN_ON_FPU(fpu->fpregs_active);
-
-	fpu->fpregs_active = 1;
 	this_cpu_write(fpu_fpregs_owner_ctx, fpu);
 	trace_x86_fpu_regs_activated(fpu);
 }
 
 /*
- * The question "does this thread have fpu access?"
- * is slightly racy, since preemption could come in
- * and revoke it immediately after the test.
- *
- * However, even in that very unlikely scenario,
- * we can just assume we have FPU access - typically
- * to save the FP state - we'll just take a #NM
- * fault and get the FPU access back.
- */
-static inline int fpregs_active(void)
-{
-	return current->thread.fpu.fpregs_active;
-}
-
-/*
  * FPU state switching for scheduling.
  *
  * This is a two-stage process:
@@ -571,14 +528,13 @@ static inline int fpregs_active(void)
 static inline void
 switch_fpu_prepare(struct fpu *old_fpu, int cpu)
 {
-	if (old_fpu->fpregs_active) {
+	if (old_fpu->initialized) {
 		if (!copy_fpregs_to_fpstate(old_fpu))
 			old_fpu->last_cpu = -1;
 		else
 			old_fpu->last_cpu = cpu;
 
 		/* But leave fpu_fpregs_owner_ctx! */
-		old_fpu->fpregs_active = 0;
 		trace_x86_fpu_regs_deactivated(old_fpu);
 	} else
 		old_fpu->last_cpu = -1;
@@ -595,7 +551,7 @@ switch_fpu_prepare(struct fpu *old_fpu, int cpu)
 static inline void switch_fpu_finish(struct fpu *new_fpu, int cpu)
 {
 	bool preload = static_cpu_has(X86_FEATURE_FPU) &&
-		       new_fpu->fpstate_active;
+		       new_fpu->initialized;
 
 	if (preload) {
 		if (!fpregs_state_valid(new_fpu, cpu))
@@ -617,8 +573,7 @@ static inline void user_fpu_begin(void)
 	struct fpu *fpu = &current->thread.fpu;
 
 	preempt_disable();
-	if (!fpregs_active())
-		fpregs_activate(fpu);
+	fpregs_activate(fpu);
 	preempt_enable();
 }
 
diff --git a/arch/x86/include/asm/fpu/regset.h b/arch/x86/include/asm/fpu/regset.h
index 39d3107ac6c7..d5bdffb9d27f 100644
--- a/arch/x86/include/asm/fpu/regset.h
+++ b/arch/x86/include/asm/fpu/regset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * FPU regset handling methods:
  */
diff --git a/arch/x86/include/asm/fpu/signal.h b/arch/x86/include/asm/fpu/signal.h
index 20a1fbf7fe4e..4df2754ef380 100644
--- a/arch/x86/include/asm/fpu/signal.h
+++ b/arch/x86/include/asm/fpu/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * x86 FPU signal frame handling methods:
  */
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
index 3c80f5b9c09d..202c53918ecf 100644
--- a/arch/x86/include/asm/fpu/types.h
+++ b/arch/x86/include/asm/fpu/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * FPU data structures:
  */
@@ -68,6 +69,9 @@ struct fxregs_state {
 /* Default value for fxregs_state.mxcsr: */
 #define MXCSR_DEFAULT		0x1f80
 
+/* Copy both mxcsr & mxcsr_flags with a single u64 memcpy: */
+#define MXCSR_AND_FLAGS_SIZE sizeof(u64)
+
 /*
  * Software based FPU emulation state. This is arbitrary really,
  * it matches the x87 format to make it easier to understand:
@@ -290,36 +294,13 @@ struct fpu {
 	unsigned int			last_cpu;
 
 	/*
-	 * @fpstate_active:
+	 * @initialized:
 	 *
-	 * This flag indicates whether this context is active: if the task
+	 * This flag indicates whether this context is initialized: if the task
 	 * is not running then we can restore from this context, if the task
 	 * is running then we should save into this context.
 	 */
-	unsigned char			fpstate_active;
-
-	/*
-	 * @fpregs_active:
-	 *
-	 * This flag determines whether a given context is actively
-	 * loaded into the FPU's registers and that those registers
-	 * represent the task's current FPU state.
-	 *
-	 * Note the interaction with fpstate_active:
-	 *
-	 *   # task does not use the FPU:
-	 *   fpstate_active == 0
-	 *
-	 *   # task uses the FPU and regs are active:
-	 *   fpstate_active == 1 && fpregs_active == 1
-	 *
-	 *   # the regs are inactive but still match fpstate:
-	 *   fpstate_active == 1 && fpregs_active == 0 && fpregs_owner == fpu
-	 *
-	 * The third state is what we use for the lazy restore optimization
-	 * on lazy-switching CPUs.
-	 */
-	unsigned char			fpregs_active;
+	unsigned char			initialized;
 
 	/*
 	 * @state:
diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h
index 1b2799e0699a..48581988d78c 100644
--- a/arch/x86/include/asm/fpu/xstate.h
+++ b/arch/x86/include/asm/fpu/xstate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_X86_XSAVE_H
 #define __ASM_X86_XSAVE_H
 
@@ -48,8 +49,12 @@ void fpu__xstate_clear_all_cpu_caps(void);
 void *get_xsave_addr(struct xregs_state *xsave, int xstate);
 const void *get_xsave_field_ptr(int xstate_field);
 int using_compacted_format(void);
-int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
-			void __user *ubuf, struct xregs_state *xsave);
-int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
-		     struct xregs_state *xsave);
+int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int offset, unsigned int size);
+int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int offset, unsigned int size);
+int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf);
+int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf);
+
+/* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
+extern int validate_xstate_header(const struct xstate_header *hdr);
+
 #endif
diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h
index 6e4d170726b7..5cbce6fbb534 100644
--- a/arch/x86/include/asm/frame.h
+++ b/arch/x86/include/asm/frame.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_FRAME_H
 #define _ASM_X86_FRAME_H
 
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index eccd0ac6bc38..09ad88572746 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_FTRACE_H
 #define _ASM_X86_FTRACE_H
 
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index f4dc9b63bdda..de4d68852d3a 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_FUTEX_H
 #define _ASM_X86_FUTEX_H
 
diff --git a/arch/x86/include/asm/gart.h b/arch/x86/include/asm/gart.h
index 1d268098ac2e..318556574345 100644
--- a/arch/x86/include/asm/gart.h
+++ b/arch/x86/include/asm/gart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_GART_H
 #define _ASM_X86_GART_H
 
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index ad1ed531febc..51cc979dd364 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HARDIRQ_H
 #define _ASM_X86_HARDIRQ_H
 
diff --git a/arch/x86/include/asm/highmem.h b/arch/x86/include/asm/highmem.h
index 1c0b43724ce3..a8059930056d 100644
--- a/arch/x86/include/asm/highmem.h
+++ b/arch/x86/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * highmem.h: virtual kernel memory mappings for high memory
  *
diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index cc285ec4b2c1..67385d56d4f4 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HPET_H
 #define _ASM_X86_HPET_H
 
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 535af0f2d8ac..5ed826da5e07 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HUGETLB_H
 #define _ASM_X86_HUGETLB_H
 
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 6c98be864a75..f59c39835a5a 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	_I386_HW_BREAKPOINT_H
 #define	_I386_HW_BREAKPOINT_H
 
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 6dfe366a8804..b80e46733909 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HW_IRQ_H
 #define _ASM_X86_HW_IRQ_H
 
@@ -15,6 +16,8 @@
 
 #include <asm/irq_vectors.h>
 
+#define IRQ_MATRIX_BITS		NR_VECTORS
+
 #ifndef __ASSEMBLY__
 
 #include <linux/percpu.h>
@@ -122,15 +125,13 @@ struct irq_alloc_info {
 
 struct irq_cfg {
 	unsigned int		dest_apicid;
-	u8			vector;
-	u8			old_vector;
+	unsigned int		vector;
 };
 
 extern struct irq_cfg *irq_cfg(unsigned int irq);
 extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
 extern void lock_vector_lock(void);
 extern void unlock_vector_lock(void);
-extern void setup_vector_irq(int cpu);
 #ifdef CONFIG_SMP
 extern void send_cleanup_vector(struct irq_cfg *);
 extern void irq_complete_move(struct irq_cfg *cfg);
diff --git a/arch/x86/include/asm/hypertransport.h b/arch/x86/include/asm/hypertransport.h
index 334b1a885d9c..5d55df352879 100644
--- a/arch/x86/include/asm/hypertransport.h
+++ b/arch/x86/include/asm/hypertransport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HYPERTRANSPORT_H
 #define _ASM_X86_HYPERTRANSPORT_H
 
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index 0ead9dbb9130..1b0a5abcd8ae 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -23,11 +23,22 @@
 #ifdef CONFIG_HYPERVISOR_GUEST
 
 #include <asm/kvm_para.h>
+#include <asm/x86_init.h>
 #include <asm/xen/hypervisor.h>
 
 /*
  * x86 hypervisor information
  */
+
+enum x86_hypervisor_type {
+	X86_HYPER_NATIVE = 0,
+	X86_HYPER_VMWARE,
+	X86_HYPER_MS_HYPERV,
+	X86_HYPER_XEN_PV,
+	X86_HYPER_XEN_HVM,
+	X86_HYPER_KVM,
+};
+
 struct hypervisor_x86 {
 	/* Hypervisor name */
 	const char	*name;
@@ -35,40 +46,19 @@ struct hypervisor_x86 {
 	/* Detection routine */
 	uint32_t	(*detect)(void);
 
-	/* Platform setup (run once per boot) */
-	void		(*init_platform)(void);
-
-	/* X2APIC detection (run once per boot) */
-	bool		(*x2apic_available)(void);
+	/* Hypervisor type */
+	enum x86_hypervisor_type type;
 
-	/* pin current vcpu to specified physical cpu (run rarely) */
-	void		(*pin_vcpu)(int);
+	/* init time callbacks */
+	struct x86_hyper_init init;
 
-	/* called during init_mem_mapping() to setup early mappings. */
-	void		(*init_mem_mapping)(void);
+	/* runtime callbacks */
+	struct x86_hyper_runtime runtime;
 };
 
-extern const struct hypervisor_x86 *x86_hyper;
-
-/* Recognized hypervisors */
-extern const struct hypervisor_x86 x86_hyper_vmware;
-extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
-extern const struct hypervisor_x86 x86_hyper_xen_pv;
-extern const struct hypervisor_x86 x86_hyper_xen_hvm;
-extern const struct hypervisor_x86 x86_hyper_kvm;
-
+extern enum x86_hypervisor_type x86_hyper_type;
 extern void init_hypervisor_platform(void);
-extern bool hypervisor_x2apic_available(void);
-extern void hypervisor_pin_vcpu(int cpu);
-
-static inline void hypervisor_init_mem_mapping(void)
-{
-	if (x86_hyper && x86_hyper->init_mem_mapping)
-		x86_hyper->init_mem_mapping();
-}
 #else
 static inline void init_hypervisor_platform(void) { }
-static inline bool hypervisor_x2apic_available(void) { return false; }
-static inline void hypervisor_init_mem_mapping(void) { }
 #endif /* CONFIG_HYPERVISOR_GUEST */
 #endif /* _ASM_X86_HYPERVISOR_H */
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index 39bcefc20de7..c8376b40e882 100644
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_I8259_H
 #define _ASM_X86_I8259_H
 
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
index a9bdf5569ab3..2c5f7861d373 100644
--- a/arch/x86/include/asm/ia32.h
+++ b/arch/x86/include/asm/ia32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IA32_H
 #define _ASM_X86_IA32_H
 
diff --git a/arch/x86/include/asm/ia32_unistd.h b/arch/x86/include/asm/ia32_unistd.h
index b0d5716ca1e4..aa065c94ccf5 100644
--- a/arch/x86/include/asm/ia32_unistd.h
+++ b/arch/x86/include/asm/ia32_unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IA32_UNISTD_H
 #define _ASM_X86_IA32_UNISTD_H
 
diff --git a/arch/x86/include/asm/inat.h b/arch/x86/include/asm/inat.h
index 02aff0867211..1c78580e58be 100644
--- a/arch/x86/include/asm/inat.h
+++ b/arch/x86/include/asm/inat.h
@@ -97,6 +97,16 @@
 #define INAT_MAKE_GROUP(grp)	((grp << INAT_GRP_OFFS) | INAT_MODRM)
 #define INAT_MAKE_IMM(imm)	(imm << INAT_IMM_OFFS)
 
+/* Identifiers for segment registers */
+#define INAT_SEG_REG_IGNORE	0
+#define INAT_SEG_REG_DEFAULT	1
+#define INAT_SEG_REG_CS		2
+#define INAT_SEG_REG_SS		3
+#define INAT_SEG_REG_DS		4
+#define INAT_SEG_REG_ES		5
+#define INAT_SEG_REG_FS		6
+#define INAT_SEG_REG_GS		7
+
 /* Attribute search APIs */
 extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode);
 extern int inat_get_last_prefix_id(insn_byte_t last_pfx);
diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h
index 05c4aa00cc86..5f1d3c421f68 100644
--- a/arch/x86/include/asm/init.h
+++ b/arch/x86/include/asm/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INIT_H
 #define _ASM_X86_INIT_H
 
diff --git a/arch/x86/include/asm/insn-eval.h b/arch/x86/include/asm/insn-eval.h
new file mode 100644
index 000000000000..e1d3b4ce8a92
--- /dev/null
+++ b/arch/x86/include/asm/insn-eval.h
@@ -0,0 +1,23 @@
+#ifndef _ASM_X86_INSN_EVAL_H
+#define _ASM_X86_INSN_EVAL_H
+/*
+ * A collection of utility functions for x86 instruction analysis to be
+ * used in a kernel context. Useful when, for instance, making sense
+ * of the registers indicated by operands.
+ */
+
+#include <linux/compiler.h>
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <asm/ptrace.h>
+
+#define INSN_CODE_SEG_ADDR_SZ(params) ((params >> 4) & 0xf)
+#define INSN_CODE_SEG_OPND_SZ(params) (params & 0xf)
+#define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4))
+
+void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs);
+int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs);
+unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx);
+char insn_get_code_seg_params(struct pt_regs *regs);
+
+#endif /* _ASM_X86_INSN_EVAL_H */
diff --git a/arch/x86/include/asm/inst.h b/arch/x86/include/asm/inst.h
index 3e115273ed88..f5a796da07f8 100644
--- a/arch/x86/include/asm/inst.h
+++ b/arch/x86/include/asm/inst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generate .byte code for some instructions not supported by old
  * binutils.
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
index 75b748a1deb8..35a6bc4da8ad 100644
--- a/arch/x86/include/asm/intel-family.h
+++ b/arch/x86/include/asm/intel-family.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_FAMILY_H
 #define _ASM_X86_INTEL_FAMILY_H
 
diff --git a/arch/x86/include/asm/intel_mid_vrtc.h b/arch/x86/include/asm/intel_mid_vrtc.h
index 86ff4685c409..35555016b1be 100644
--- a/arch/x86/include/asm/intel_mid_vrtc.h
+++ b/arch/x86/include/asm/intel_mid_vrtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INTEL_MID_VRTC_H
 #define _INTEL_MID_VRTC_H
 
diff --git a/arch/x86/include/asm/intel_pmc_ipc.h b/arch/x86/include/asm/intel_pmc_ipc.h
index fac89eb78a6b..528ed4be4393 100644
--- a/arch/x86/include/asm/intel_pmc_ipc.h
+++ b/arch/x86/include/asm/intel_pmc_ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_PMC_IPC_H_
 #define  _ASM_X86_INTEL_PMC_IPC_H_
 
diff --git a/arch/x86/include/asm/intel_pt.h b/arch/x86/include/asm/intel_pt.h
index e1a411786bf5..b523f51c5400 100644
--- a/arch/x86/include/asm/intel_pt.h
+++ b/arch/x86/include/asm/intel_pt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_PT_H
 #define _ASM_X86_INTEL_PT_H
 
diff --git a/arch/x86/include/asm/intel_punit_ipc.h b/arch/x86/include/asm/intel_punit_ipc.h
index 201eb9dce595..ce16da719596 100644
--- a/arch/x86/include/asm/intel_punit_ipc.h
+++ b/arch/x86/include/asm/intel_punit_ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_PUNIT_IPC_H_
 #define  _ASM_X86_INTEL_PUNIT_IPC_H_
 
diff --git a/arch/x86/include/asm/intel_rdt_sched.h b/arch/x86/include/asm/intel_rdt_sched.h
index b4bbf8b21512..9acb06b6f81e 100644
--- a/arch/x86/include/asm/intel_rdt_sched.h
+++ b/arch/x86/include/asm/intel_rdt_sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_RDT_SCHED_H
 #define _ASM_X86_INTEL_RDT_SCHED_H
 
diff --git a/arch/x86/include/asm/intel_scu_ipc.h b/arch/x86/include/asm/intel_scu_ipc.h
index 81d3d8776fd9..4a8c6e817398 100644
--- a/arch/x86/include/asm/intel_scu_ipc.h
+++ b/arch/x86/include/asm/intel_scu_ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_SCU_IPC_H_
 #define  _ASM_X86_INTEL_SCU_IPC_H_
 
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index c40a95c33bb8..93ae8aee1780 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IO_H
 #define _ASM_X86_IO_H
 
@@ -265,6 +266,21 @@ static inline void slow_down_io(void)
 
 #endif
 
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+#include <linux/jump_label.h>
+
+extern struct static_key_false sev_enable_key;
+static inline bool sev_key_active(void)
+{
+	return static_branch_unlikely(&sev_enable_key);
+}
+
+#else /* !CONFIG_AMD_MEM_ENCRYPT */
+
+static inline bool sev_key_active(void) { return false; }
+
+#endif /* CONFIG_AMD_MEM_ENCRYPT */
+
 #define BUILDIO(bwl, bw, type)						\
 static inline void out##bwl(unsigned type value, int port)		\
 {									\
@@ -295,14 +311,34 @@ static inline unsigned type in##bwl##_p(int port)			\
 									\
 static inline void outs##bwl(int port, const void *addr, unsigned long count) \
 {									\
-	asm volatile("rep; outs" #bwl					\
-		     : "+S"(addr), "+c"(count) : "d"(port) : "memory");	\
+	if (sev_key_active()) {						\
+		unsigned type *value = (unsigned type *)addr;		\
+		while (count) {						\
+			out##bwl(*value, port);				\
+			value++;					\
+			count--;					\
+		}							\
+	} else {							\
+		asm volatile("rep; outs" #bwl				\
+			     : "+S"(addr), "+c"(count)			\
+			     : "d"(port) : "memory");			\
+	}								\
 }									\
 									\
 static inline void ins##bwl(int port, void *addr, unsigned long count)	\
 {									\
-	asm volatile("rep; ins" #bwl					\
-		     : "+D"(addr), "+c"(count) : "d"(port) : "memory");	\
+	if (sev_key_active()) {						\
+		unsigned type *value = (unsigned type *)addr;		\
+		while (count) {						\
+			*value = in##bwl(port);				\
+			value++;					\
+			count--;					\
+		}							\
+	} else {							\
+		asm volatile("rep; ins" #bwl				\
+			     : "+D"(addr), "+c"(count)			\
+			     : "d"(port) : "memory");			\
+	}								\
 }
 
 BUILDIO(b, b, char)
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 6cbf2cfb3f8a..a8834dd546cd 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IO_APIC_H
 #define _ASM_X86_IO_APIC_H
 
@@ -192,7 +193,6 @@ static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
 extern void setup_IO_APIC(void);
 extern void enable_IO_APIC(void);
 extern void disable_IO_APIC(void);
-extern void setup_ioapic_dest(void);
 extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
 extern void print_IO_APICs(void);
 #else  /* !CONFIG_X86_IO_APIC */
@@ -232,7 +232,6 @@ static inline void io_apic_init_mappings(void) { }
 
 static inline void setup_IO_APIC(void) { }
 static inline void enable_IO_APIC(void) { }
-static inline void setup_ioapic_dest(void) { }
 
 #endif
 
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index fca144a104e4..1e5d5d92eb40 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IOMMU_H
 #define _ASM_X86_IOMMU_H
 
diff --git a/arch/x86/include/asm/iommu_table.h b/arch/x86/include/asm/iommu_table.h
index e37d6b3ad983..1fb3fd1a83c2 100644
--- a/arch/x86/include/asm/iommu_table.h
+++ b/arch/x86/include/asm/iommu_table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IOMMU_TABLE_H
 #define _ASM_X86_IOMMU_TABLE_H
 
diff --git a/arch/x86/include/asm/iosf_mbi.h b/arch/x86/include/asm/iosf_mbi.h
index c313cac36f56..7d87437bd030 100644
--- a/arch/x86/include/asm/iosf_mbi.h
+++ b/arch/x86/include/asm/iosf_mbi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Intel OnChip System Fabric MailBox access support
  */
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index 9958ceea2fa3..2395bb794c7b 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IRQ_H
 #define _ASM_X86_IRQ_H
 /*
@@ -25,11 +26,7 @@ extern void irq_ctx_init(int cpu);
 
 struct irq_desc;
 
-#ifdef CONFIG_HOTPLUG_CPU
-#include <linux/cpumask.h>
-extern int check_irq_vectors_for_cpu_disable(void);
 extern void fixup_irqs(void);
-#endif
 
 #ifdef CONFIG_HAVE_KVM
 extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
diff --git a/arch/x86/include/asm/irq_regs.h b/arch/x86/include/asm/irq_regs.h
index d82250b1debb..8f3bee821e6c 100644
--- a/arch/x86/include/asm/irq_regs.h
+++ b/arch/x86/include/asm/irq_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Per-cpu current frame pointer - the location of the last exception frame on
  * the stack, stored in the per-cpu area.
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index aaf8d28b5d00..67421f649cfa 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_IRQ_VECTORS_H
 #define _ASM_X86_IRQ_VECTORS_H
 
@@ -101,12 +102,8 @@
 #define POSTED_INTR_NESTED_VECTOR	0xf0
 #endif
 
-/*
- * Local APIC timer IRQ vector is on a different priority level,
- * to work around the 'lost local interrupt if more than 2 IRQ
- * sources per level' errata.
- */
-#define LOCAL_TIMER_VECTOR		0xef
+#define MANAGED_IRQ_SHUTDOWN_VECTOR	0xef
+#define LOCAL_TIMER_VECTOR		0xee
 
 #define NR_VECTORS			 256
 
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
index ddbb8ea0f5a9..800ffce0db29 100644
--- a/arch/x86/include/asm/irq_work.h
+++ b/arch/x86/include/asm/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IRQ_WORK_H
 #define _ASM_IRQ_WORK_H
 
diff --git a/arch/x86/include/asm/irqdomain.h b/arch/x86/include/asm/irqdomain.h
index d26075b52885..f695cc6b8e1f 100644
--- a/arch/x86/include/asm/irqdomain.h
+++ b/arch/x86/include/asm/irqdomain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_IRQDOMAIN_H
 #define _ASM_IRQDOMAIN_H
 
@@ -8,6 +9,7 @@
 enum {
 	/* Allocate contiguous CPU vectors */
 	X86_IRQ_ALLOC_CONTIGUOUS_VECTORS		= 0x1,
+	X86_IRQ_ALLOC_LEGACY				= 0x2,
 };
 
 extern struct irq_domain *x86_vector_domain;
@@ -41,8 +43,8 @@ extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
 			      unsigned int nr_irqs, void *arg);
 extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
 			      unsigned int nr_irqs);
-extern void mp_irqdomain_activate(struct irq_domain *domain,
-				  struct irq_data *irq_data);
+extern int mp_irqdomain_activate(struct irq_domain *domain,
+				 struct irq_data *irq_data, bool early);
 extern void mp_irqdomain_deactivate(struct irq_domain *domain,
 				    struct irq_data *irq_data);
 extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index ac7692dcfa2e..c8ef23f2c28f 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _X86_IRQFLAGS_H_
 #define _X86_IRQFLAGS_H_
 
diff --git a/arch/x86/include/asm/jump_label.h b/arch/x86/include/asm/jump_label.h
index adc54c12cbd1..8c0de4282659 100644
--- a/arch/x86/include/asm/jump_label.h
+++ b/arch/x86/include/asm/jump_label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_JUMP_LABEL_H
 #define _ASM_X86_JUMP_LABEL_H
 
diff --git a/arch/x86/include/asm/kasan.h b/arch/x86/include/asm/kasan.h
index f527b02a0ee3..b577dd0916aa 100644
--- a/arch/x86/include/asm/kasan.h
+++ b/arch/x86/include/asm/kasan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KASAN_H
 #define _ASM_X86_KASAN_H
 
diff --git a/arch/x86/include/asm/kaslr.h b/arch/x86/include/asm/kaslr.h
index 1052a797d71d..460991e3b529 100644
--- a/arch/x86/include/asm/kaslr.h
+++ b/arch/x86/include/asm/kaslr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KASLR_H_
 #define _ASM_KASLR_H_
 
diff --git a/arch/x86/include/asm/kbdleds.h b/arch/x86/include/asm/kbdleds.h
index f27ac5ff597d..197ea4fedd53 100644
--- a/arch/x86/include/asm/kbdleds.h
+++ b/arch/x86/include/asm/kbdleds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KBDLEDS_H
 #define _ASM_X86_KBDLEDS_H
 
diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index 29a594a3b82a..f86a8caa561e 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KDEBUG_H
 #define _ASM_X86_KDEBUG_H
 
diff --git a/arch/x86/include/asm/kexec-bzimage64.h b/arch/x86/include/asm/kexec-bzimage64.h
index d1b5d194e31d..9f07cff43705 100644
--- a/arch/x86/include/asm/kexec-bzimage64.h
+++ b/arch/x86/include/asm/kexec-bzimage64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_KEXEC_BZIMAGE64_H
 #define _ASM_KEXEC_BZIMAGE64_H
 
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index 942c1f444da8..f327236f0fa7 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KEXEC_H
 #define _ASM_X86_KEXEC_H
 
diff --git a/arch/x86/include/asm/kgdb.h b/arch/x86/include/asm/kgdb.h
index 22a8537eb780..aacaf2502bd2 100644
--- a/arch/x86/include/asm/kgdb.h
+++ b/arch/x86/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KGDB_H
 #define _ASM_X86_KGDB_H
 
diff --git a/arch/x86/include/asm/kmap_types.h b/arch/x86/include/asm/kmap_types.h
index 9e00a731a7fb..04ab8266e347 100644
--- a/arch/x86/include/asm/kmap_types.h
+++ b/arch/x86/include/asm/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KMAP_TYPES_H
 #define _ASM_X86_KMAP_TYPES_H
 
diff --git a/arch/x86/include/asm/kmemcheck.h b/arch/x86/include/asm/kmemcheck.h
index ed01518f297e..945a0337fbcf 100644
--- a/arch/x86/include/asm/kmemcheck.h
+++ b/arch/x86/include/asm/kmemcheck.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_X86_KMEMCHECK_H
 #define ASM_X86_KMEMCHECK_H
 
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 6cf65437b5e5..9f2e3102e0bb 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -58,8 +58,8 @@ extern __visible kprobe_opcode_t optprobe_template_call[];
 extern __visible kprobe_opcode_t optprobe_template_end[];
 #define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + RELATIVE_ADDR_SIZE)
 #define MAX_OPTINSN_SIZE 				\
-	(((unsigned long)&optprobe_template_end -	\
-	  (unsigned long)&optprobe_template_entry) +	\
+	(((unsigned long)optprobe_template_end -	\
+	  (unsigned long)optprobe_template_entry) +	\
 	 MAX_OPTIMIZED_LENGTH + RELATIVEJUMP_SIZE)
 
 extern const int kretprobe_blacklist_size;
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index fa2558e12024..ee23a43386a2 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * x86_emulate.h
  *
diff --git a/arch/x86/include/asm/kvm_guest.h b/arch/x86/include/asm/kvm_guest.h
index a92b1763c419..46185263d9c2 100644
--- a/arch/x86/include/asm/kvm_guest.h
+++ b/arch/x86/include/asm/kvm_guest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KVM_GUEST_H
 #define _ASM_X86_KVM_GUEST_H
 
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 8844eee290b2..9d7d856b2d89 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -951,7 +951,6 @@ struct kvm_x86_ops {
 	void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
 	unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
 	void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
-	u32 (*get_pkru)(struct kvm_vcpu *vcpu);
 
 	void (*tlb_flush)(struct kvm_vcpu *vcpu);
 
@@ -973,7 +972,7 @@ struct kvm_x86_ops {
 	void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
 	void (*enable_irq_window)(struct kvm_vcpu *vcpu);
 	void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
-	bool (*get_enable_apicv)(void);
+	bool (*get_enable_apicv)(struct kvm_vcpu *vcpu);
 	void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
 	void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
 	void (*hwapic_isr_update)(struct kvm_vcpu *vcpu, int isr);
@@ -1420,7 +1419,7 @@ static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}
 static inline int kvm_cpu_get_apicid(int mps_cpu)
 {
 #ifdef CONFIG_X86_LOCAL_APIC
-	return __default_cpu_present_to_apicid(mps_cpu);
+	return default_cpu_present_to_apicid(mps_cpu);
 #else
 	WARN_ON_ONCE(1);
 	return BAD_APICID;
diff --git a/arch/x86/include/asm/kvm_page_track.h b/arch/x86/include/asm/kvm_page_track.h
index c4eda791f877..172f9749dbb2 100644
--- a/arch/x86/include/asm/kvm_page_track.h
+++ b/arch/x86/include/asm/kvm_page_track.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KVM_PAGE_TRACK_H
 #define _ASM_X86_KVM_PAGE_TRACK_H
 
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index bc62e7cbf1b1..7b407dda2bd7 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KVM_PARA_H
 #define _ASM_X86_KVM_PARA_H
 
@@ -87,8 +88,7 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
 #ifdef CONFIG_KVM_GUEST
 bool kvm_para_available(void);
 unsigned int kvm_arch_para_features(void);
-void __init kvm_guest_init(void);
-void kvm_async_pf_task_wait(u32 token);
+void kvm_async_pf_task_wait(u32 token, int interrupt_kernel);
 void kvm_async_pf_task_wake(u32 token);
 u32 kvm_read_and_reset_pf_reason(void);
 extern void kvm_disable_steal_time(void);
@@ -102,8 +102,7 @@ static inline void kvm_spinlock_init(void)
 #endif /* CONFIG_PARAVIRT_SPINLOCKS */
 
 #else /* CONFIG_KVM_GUEST */
-#define kvm_guest_init() do {} while (0)
-#define kvm_async_pf_task_wait(T) do {} while(0)
+#define kvm_async_pf_task_wait(T, I) do {} while(0)
 #define kvm_async_pf_task_wake(T) do {} while(0)
 
 static inline bool kvm_para_available(void)
diff --git a/arch/x86/include/asm/kvmclock.h b/arch/x86/include/asm/kvmclock.h
index f260bef63591..eceea9299097 100644
--- a/arch/x86/include/asm/kvmclock.h
+++ b/arch/x86/include/asm/kvmclock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_KVM_CLOCK_H
 #define _ASM_X86_KVM_CLOCK_H
 
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index 0ccb26dda126..14caa9d9fb7f 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_LINKAGE_H
 #define _ASM_X86_LINKAGE_H
 
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 7511978093eb..c91083c59845 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_LOCAL_H
 #define _ASM_X86_LOCAL_H
 
diff --git a/arch/x86/include/asm/mach_timer.h b/arch/x86/include/asm/mach_timer.h
index 88d0c3c74c13..044daf6fb8f6 100644
--- a/arch/x86/include/asm/mach_timer.h
+++ b/arch/x86/include/asm/mach_timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Machine specific calibrate_tsc() for generic.
  *  Split out from timer_tsc.c by Osamu Tomita <tomita@cinet.co.jp>
diff --git a/arch/x86/include/asm/mach_traps.h b/arch/x86/include/asm/mach_traps.h
index a01e7ec7d237..e39a517467cd 100644
--- a/arch/x86/include/asm/mach_traps.h
+++ b/arch/x86/include/asm/mach_traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Machine specific NMI handling for generic.
  *  Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
diff --git a/arch/x86/include/asm/math_emu.h b/arch/x86/include/asm/math_emu.h
index 0d9b14f60d2c..3c42743083ed 100644
--- a/arch/x86/include/asm/math_emu.h
+++ b/arch/x86/include/asm/math_emu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MATH_EMU_H
 #define _ASM_X86_MATH_EMU_H
 
diff --git a/arch/x86/include/asm/mc146818rtc.h b/arch/x86/include/asm/mc146818rtc.h
index 24acd9ba7837..1775a32f7ea6 100644
--- a/arch/x86/include/asm/mc146818rtc.h
+++ b/arch/x86/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Machine dependent access functions for RTC registers.
  */
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index 181264989db5..b1e8d8db921f 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MCE_H
 #define _ASM_X86_MCE_H
 
@@ -187,7 +188,6 @@ struct mca_msr_regs {
 
 extern struct mce_vendor_flags mce_flags;
 
-extern struct mca_config mca_cfg;
 extern struct mca_msr_regs msr_ops;
 
 enum mce_notifier_prios {
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
index 6a77c63540f7..c9459a4c3c68 100644
--- a/arch/x86/include/asm/mem_encrypt.h
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -42,11 +42,17 @@ void __init sme_early_init(void);
 void __init sme_encrypt_kernel(void);
 void __init sme_enable(struct boot_params *bp);
 
+int __init early_set_memory_decrypted(unsigned long vaddr, unsigned long size);
+int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size);
+
 /* Architecture __weak replacement functions */
 void __init mem_encrypt_init(void);
 
 void swiotlb_set_mem_attributes(void *vaddr, unsigned long size);
 
+bool sme_active(void);
+bool sev_active(void);
+
 #else	/* !CONFIG_AMD_MEM_ENCRYPT */
 
 #define sme_me_mask	0ULL
@@ -64,6 +70,14 @@ static inline void __init sme_early_init(void) { }
 static inline void __init sme_encrypt_kernel(void) { }
 static inline void __init sme_enable(struct boot_params *bp) { }
 
+static inline bool sme_active(void) { return false; }
+static inline bool sev_active(void) { return false; }
+
+static inline int __init
+early_set_memory_decrypted(unsigned long vaddr, unsigned long size) { return 0; }
+static inline int __init
+early_set_memory_encrypted(unsigned long vaddr, unsigned long size) { return 0; }
+
 #endif	/* CONFIG_AMD_MEM_ENCRYPT */
 
 /*
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index daadeeea00b1..55520cec8b27 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MICROCODE_H
 #define _ASM_X86_MICROCODE_H
 
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
index 3d57009e168b..209492849566 100644
--- a/arch/x86/include/asm/microcode_amd.h
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MICROCODE_AMD_H
 #define _ASM_X86_MICROCODE_AMD_H
 
diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
index e793fc9a9b20..d85a07d7154f 100644
--- a/arch/x86/include/asm/microcode_intel.h
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MICROCODE_INTEL_H
 #define _ASM_X86_MICROCODE_INTEL_H
 
diff --git a/arch/x86/include/asm/misc.h b/arch/x86/include/asm/misc.h
index 475f5bbc7f53..bb049cca3729 100644
--- a/arch/x86/include/asm/misc.h
+++ b/arch/x86/include/asm/misc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MISC_H
 #define _ASM_X86_MISC_H
 
diff --git a/arch/x86/include/asm/mmconfig.h b/arch/x86/include/asm/mmconfig.h
index 04a3fed22cfe..976486447e10 100644
--- a/arch/x86/include/asm/mmconfig.h
+++ b/arch/x86/include/asm/mmconfig.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MMCONFIG_H
 #define _ASM_X86_MMCONFIG_H
 
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index bb8c597c2248..9ea26f167497 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MMU_H
 #define _ASM_X86_MMU_H
 
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 7ae318c340d9..6d16d15d09a0 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MMU_CONTEXT_H
 #define _ASM_X86_MMU_CONTEXT_H
 
@@ -72,8 +73,8 @@ static inline void load_mm_ldt(struct mm_struct *mm)
 #ifdef CONFIG_MODIFY_LDT_SYSCALL
 	struct ldt_struct *ldt;
 
-	/* lockless_dereference synchronizes with smp_store_release */
-	ldt = lockless_dereference(mm->context.ldt);
+	/* READ_ONCE synchronizes with smp_store_release */
+	ldt = READ_ONCE(mm->context.ldt);
 
 	/*
 	 * Any change to mm->context.ldt is followed by an IPI to all
@@ -126,13 +127,7 @@ static inline void switch_ldt(struct mm_struct *prev, struct mm_struct *next)
 	DEBUG_LOCKS_WARN_ON(preemptible());
 }
 
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-	int cpu = smp_processor_id();
-
-	if (cpumask_test_cpu(cpu, mm_cpumask(mm)))
-		cpumask_clear_cpu(cpu, mm_cpumask(mm));
-}
+void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk);
 
 static inline int init_new_context(struct task_struct *tsk,
 				   struct mm_struct *mm)
@@ -286,6 +281,32 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
 	return __pkru_allows_pkey(vma_pkey(vma), write);
 }
 
+/*
+ * If PCID is on, ASID-aware code paths put the ASID+1 into the PCID
+ * bits.  This serves two purposes.  It prevents a nasty situation in
+ * which PCID-unaware code saves CR3, loads some other value (with PCID
+ * == 0), and then restores CR3, thus corrupting the TLB for ASID 0 if
+ * the saved ASID was nonzero.  It also means that any bugs involving
+ * loading a PCID-enabled CR3 with CR4.PCIDE off will trigger
+ * deterministically.
+ */
+
+static inline unsigned long build_cr3(struct mm_struct *mm, u16 asid)
+{
+	if (static_cpu_has(X86_FEATURE_PCID)) {
+		VM_WARN_ON_ONCE(asid > 4094);
+		return __sme_pa(mm->pgd) | (asid + 1);
+	} else {
+		VM_WARN_ON_ONCE(asid != 0);
+		return __sme_pa(mm->pgd);
+	}
+}
+
+static inline unsigned long build_cr3_noflush(struct mm_struct *mm, u16 asid)
+{
+	VM_WARN_ON_ONCE(asid > 4094);
+	return __sme_pa(mm->pgd) | (asid + 1) | CR3_NOFLUSH;
+}
 
 /*
  * This can be used from process context to figure out what the value of
@@ -296,10 +317,8 @@ static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
  */
 static inline unsigned long __get_current_cr3_fast(void)
 {
-	unsigned long cr3 = __pa(this_cpu_read(cpu_tlbstate.loaded_mm)->pgd);
-
-	if (static_cpu_has(X86_FEATURE_PCID))
-		cr3 |= this_cpu_read(cpu_tlbstate.loaded_mm_asid);
+	unsigned long cr3 = build_cr3(this_cpu_read(cpu_tlbstate.loaded_mm),
+		this_cpu_read(cpu_tlbstate.loaded_mm_asid));
 
 	/* For now, be very restrictive about when this can be called. */
 	VM_WARN_ON(in_nmi() || preemptible());
diff --git a/arch/x86/include/asm/mmx.h b/arch/x86/include/asm/mmx.h
index 5cbf3135b971..f572d0f944bb 100644
--- a/arch/x86/include/asm/mmx.h
+++ b/arch/x86/include/asm/mmx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MMX_H
 #define _ASM_X86_MMX_H
 
diff --git a/arch/x86/include/asm/mmzone.h b/arch/x86/include/asm/mmzone.h
index d497bc425cae..c41b41edd691 100644
--- a/arch/x86/include/asm/mmzone.h
+++ b/arch/x86/include/asm/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_X86_32
 # include <asm/mmzone_32.h>
 #else
diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
index 1ec990bd7dc0..73d8dd14dda2 100644
--- a/arch/x86/include/asm/mmzone_32.h
+++ b/arch/x86/include/asm/mmzone_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Pat Gaughen (gone@us.ibm.com) Mar 2002
  *
diff --git a/arch/x86/include/asm/mmzone_64.h b/arch/x86/include/asm/mmzone_64.h
index 129d9aa3ceb3..0c585046f744 100644
--- a/arch/x86/include/asm/mmzone_64.h
+++ b/arch/x86/include/asm/mmzone_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* K8 NUMA support */
 /* Copyright 2002,2003 by Andi Kleen, SuSE Labs */
 /* 2.5 Version loosely based on the NUMAQ Code by Pat Gaughen. */
diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index 9eb7c718aaf8..7948a17febb4 100644
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MODULE_H
 #define _ASM_X86_MODULE_H
 
@@ -5,7 +6,7 @@
 #include <asm/orc_types.h>
 
 struct mod_arch_specific {
-#ifdef CONFIG_ORC_UNWINDER
+#ifdef CONFIG_UNWINDER_ORC
 	unsigned int num_orcs;
 	int *orc_unwind_ip;
 	struct orc_entry *orc_unwind;
diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index c471ca1f9412..606cbaebd336 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MPSPEC_H
 #define _ASM_X86_MPSPEC_H
 
diff --git a/arch/x86/include/asm/mpspec_def.h b/arch/x86/include/asm/mpspec_def.h
index b31f8c098271..a6bec8028480 100644
--- a/arch/x86/include/asm/mpspec_def.h
+++ b/arch/x86/include/asm/mpspec_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MPSPEC_DEF_H
 #define _ASM_X86_MPSPEC_DEF_H
 
@@ -58,7 +59,7 @@ struct mpc_table {
 #define	MP_TRANSLATION		192
 
 #define CPU_ENABLED		1	/* Processor is available */
-#define CPU_BOOTPROCESSOR	2	/* Processor is the BP */
+#define CPU_BOOTPROCESSOR	2	/* Processor is the boot CPU */
 
 #define CPU_STEPPING_MASK	0x000F
 #define CPU_MODEL_MASK		0x00F0
diff --git a/arch/x86/include/asm/mpx.h b/arch/x86/include/asm/mpx.h
index 7d7404756bb4..61eb4b63c5ec 100644
--- a/arch/x86/include/asm/mpx.h
+++ b/arch/x86/include/asm/mpx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MPX_H
 #define _ASM_X86_MPX_H
 
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index 63cc96f064dc..581bb54dd464 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MSHYPER_H
 #define _ASM_X86_MSHYPER_H
 
@@ -179,7 +180,6 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
 	u64 input_address = input ? virt_to_phys(input) : 0;
 	u64 output_address = output ? virt_to_phys(output) : 0;
 	u64 hv_status;
-	register void *__sp asm(_ASM_SP);
 
 #ifdef CONFIG_X86_64
 	if (!hv_hypercall_pg)
@@ -187,7 +187,7 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
 
 	__asm__ __volatile__("mov %4, %%r8\n"
 			     "call *%5"
-			     : "=a" (hv_status), "+r" (__sp),
+			     : "=a" (hv_status), ASM_CALL_CONSTRAINT,
 			       "+c" (control), "+d" (input_address)
 			     :  "r" (output_address), "m" (hv_hypercall_pg)
 			     : "cc", "memory", "r8", "r9", "r10", "r11");
@@ -202,7 +202,7 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
 
 	__asm__ __volatile__("call *%7"
 			     : "=A" (hv_status),
-			       "+c" (input_address_lo), "+r" (__sp)
+			       "+c" (input_address_lo), ASM_CALL_CONSTRAINT
 			     : "A" (control),
 			       "b" (input_address_hi),
 			       "D"(output_address_hi), "S"(output_address_lo),
@@ -224,12 +224,11 @@ static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
 static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1)
 {
 	u64 hv_status, control = (u64)code | HV_HYPERCALL_FAST_BIT;
-	register void *__sp asm(_ASM_SP);
 
 #ifdef CONFIG_X86_64
 	{
 		__asm__ __volatile__("call *%4"
-				     : "=a" (hv_status), "+r" (__sp),
+				     : "=a" (hv_status), ASM_CALL_CONSTRAINT,
 				       "+c" (control), "+d" (input1)
 				     : "m" (hv_hypercall_pg)
 				     : "cc", "r8", "r9", "r10", "r11");
@@ -242,7 +241,7 @@ static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1)
 		__asm__ __volatile__ ("call *%5"
 				      : "=A"(hv_status),
 					"+c"(input1_lo),
-					"+r"(__sp)
+					ASM_CALL_CONSTRAINT
 				      :	"A" (control),
 					"b" (input1_hi),
 					"m" (hv_hypercall_pg)
@@ -291,6 +290,7 @@ static inline u64 hv_do_rep_hypercall(u16 code, u16 rep_count, u16 varhead_size,
  * to this information.
  */
 extern u32 *hv_vp_index;
+extern u32 hv_max_vp_index;
 
 /**
  * hv_cpu_number_to_vp_number() - Map CPU to VP.
diff --git a/arch/x86/include/asm/msi.h b/arch/x86/include/asm/msi.h
index eb4b09b41df5..25ddd0916bb2 100644
--- a/arch/x86/include/asm/msi.h
+++ b/arch/x86/include/asm/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MSI_H
 #define _ASM_X86_MSI_H
 #include <asm/hw_irq.h>
diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h
index 4cc48af23fef..ee2f8ccc32d0 100644
--- a/arch/x86/include/asm/msidef.h
+++ b/arch/x86/include/asm/msidef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MSIDEF_H
 #define _ASM_X86_MSIDEF_H
 
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 17f5c12e1afd..34c4922bbc3f 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MSR_INDEX_H
 #define _ASM_X86_MSR_INDEX_H
 
@@ -323,6 +324,9 @@
 #define MSR_AMD64_IBSBRTARGET		0xc001103b
 #define MSR_AMD64_IBSOPDATA4		0xc001103d
 #define MSR_AMD64_IBS_REG_COUNT_MAX	8 /* includes MSR_AMD64_IBSBRTARGET */
+#define MSR_AMD64_SEV			0xc0010131
+#define MSR_AMD64_SEV_ENABLED_BIT	0
+#define MSR_AMD64_SEV_ENABLED		BIT_ULL(MSR_AMD64_SEV_ENABLED_BIT)
 
 /* Fam 17h MSRs */
 #define MSR_F17H_IRPERF			0xc00000e9
diff --git a/arch/x86/include/asm/msr-trace.h b/arch/x86/include/asm/msr-trace.h
index 7567225747d8..f6adbe96856a 100644
--- a/arch/x86/include/asm/msr-trace.h
+++ b/arch/x86/include/asm/msr-trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM msr
 
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 898dba2e2e2c..07962f5f6fba 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MSR_H
 #define _ASM_X86_MSR_H
 
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index bda3c27f0da0..39a2fb29378a 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_MWAIT_H
 #define _ASM_X86_MWAIT_H
 
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index 5f2fc4441b11..75ded1d13d98 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_NMI_H
 #define _ASM_X86_NMI_H
 
diff --git a/arch/x86/include/asm/nops.h b/arch/x86/include/asm/nops.h
index aff2b3356101..12f12b5cf2ca 100644
--- a/arch/x86/include/asm/nops.h
+++ b/arch/x86/include/asm/nops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_NOPS_H
 #define _ASM_X86_NOPS_H
 
diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h
index 01b493e5a99b..bbfde3d2662f 100644
--- a/arch/x86/include/asm/numa.h
+++ b/arch/x86/include/asm/numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_NUMA_H
 #define _ASM_X86_NUMA_H
 
diff --git a/arch/x86/include/asm/numa_32.h b/arch/x86/include/asm/numa_32.h
index e7d6b8254742..9c8e9e85be77 100644
--- a/arch/x86/include/asm/numa_32.h
+++ b/arch/x86/include/asm/numa_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_NUMA_32_H
 #define _ASM_X86_NUMA_32_H
 
diff --git a/arch/x86/include/asm/olpc.h b/arch/x86/include/asm/olpc.h
index 72f9adf6eca4..c2bf1de5d901 100644
--- a/arch/x86/include/asm/olpc.h
+++ b/arch/x86/include/asm/olpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* OLPC machine specific definitions */
 
 #ifndef _ASM_X86_OLPC_H
diff --git a/arch/x86/include/asm/olpc_ofw.h b/arch/x86/include/asm/olpc_ofw.h
index 24487712e0b1..8c2a1daf7f72 100644
--- a/arch/x86/include/asm/olpc_ofw.h
+++ b/arch/x86/include/asm/olpc_ofw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_OLPC_OFW_H
 #define _ASM_X86_OLPC_OFW_H
 
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
index cf8f619b305f..7555b48803a8 100644
--- a/arch/x86/include/asm/page.h
+++ b/arch/x86/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAGE_H
 #define _ASM_X86_PAGE_H
 
diff --git a/arch/x86/include/asm/page_32.h b/arch/x86/include/asm/page_32.h
index 904f528cc8e8..94dbd51df58f 100644
--- a/arch/x86/include/asm/page_32.h
+++ b/arch/x86/include/asm/page_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAGE_32_H
 #define _ASM_X86_PAGE_32_H
 
diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h
index 3bae4969ac65..aa30c3241ea7 100644
--- a/arch/x86/include/asm/page_32_types.h
+++ b/arch/x86/include/asm/page_32_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAGE_32_DEFS_H
 #define _ASM_X86_PAGE_32_DEFS_H
 
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index b50df06ad251..4baa6bceb232 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAGE_64_H
 #define _ASM_X86_PAGE_64_H
 
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 3f5f08b010d0..e1407312c412 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAGE_64_DEFS_H
 #define _ASM_X86_PAGE_64_DEFS_H
 
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index b98ed9d14630..1e53560a84bb 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAGE_DEFS_H
 #define _ASM_X86_PAGE_DEFS_H
 
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index c25dd22f7c70..283efcaac8af 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PARAVIRT_H
 #define _ASM_X86_PARAVIRT_H
 /* Various instructions on x86 need to be replaced for
@@ -15,10 +16,9 @@
 #include <linux/cpumask.h>
 #include <asm/frame.h>
 
-static inline void load_sp0(struct tss_struct *tss,
-			     struct thread_struct *thread)
+static inline void load_sp0(unsigned long sp0)
 {
-	PVOP_VCALL2(pv_cpu_ops.load_sp0, tss, thread);
+	PVOP_VCALL1(pv_cpu_ops.load_sp0, sp0);
 }
 
 /* The paravirtualized CPUID instruction. */
@@ -71,11 +71,6 @@ static inline void write_cr3(unsigned long x)
 	PVOP_VCALL1(pv_mmu_ops.write_cr3, x);
 }
 
-static inline unsigned long __read_cr4(void)
-{
-	return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr4);
-}
-
 static inline void __write_cr4(unsigned long x)
 {
 	PVOP_VCALL1(pv_cpu_ops.write_cr4, x);
@@ -228,10 +223,6 @@ static inline void set_ldt(const void *addr, unsigned entries)
 {
 	PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries);
 }
-static inline void store_idt(struct desc_ptr *dtr)
-{
-	PVOP_VCALL1(pv_cpu_ops.store_idt, dtr);
-}
 static inline unsigned long paravirt_store_tr(void)
 {
 	return PVOP_CALL0(unsigned long, pv_cpu_ops.store_tr);
@@ -365,12 +356,6 @@ static inline void paravirt_release_p4d(unsigned long pfn)
 	PVOP_VCALL1(pv_mmu_ops.release_p4d, pfn);
 }
 
-static inline void pte_update(struct mm_struct *mm, unsigned long addr,
-			      pte_t *ptep)
-{
-	PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep);
-}
-
 static inline pte_t __pte(pteval_t val)
 {
 	pteval_t ret;
@@ -472,28 +457,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
 		PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
 }
 
-static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
-			      pmd_t *pmdp, pmd_t pmd)
-{
-	if (sizeof(pmdval_t) > sizeof(long))
-		/* 5 arg words */
-		pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
-	else
-		PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp,
-			    native_pmd_val(pmd));
-}
-
-static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
-			      pud_t *pudp, pud_t pud)
-{
-	if (sizeof(pudval_t) > sizeof(long))
-		/* 5 arg words */
-		pv_mmu_ops.set_pud_at(mm, addr, pudp, pud);
-	else
-		PVOP_VCALL4(pv_mmu_ops.set_pud_at, mm, addr, pudp,
-			    native_pud_val(pud));
-}
-
 static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
 {
 	pmdval_t val = native_pmd_val(pmd);
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 6b64fc6367f2..6ec54d01972d 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PARAVIRT_TYPES_H
 #define _ASM_X86_PARAVIRT_TYPES_H
 
@@ -107,7 +108,6 @@ struct pv_cpu_ops {
 	unsigned long (*read_cr0)(void);
 	void (*write_cr0)(unsigned long);
 
-	unsigned long (*read_cr4)(void);
 	void (*write_cr4)(unsigned long);
 
 #ifdef CONFIG_X86_64
@@ -119,8 +119,6 @@ struct pv_cpu_ops {
 	void (*load_tr_desc)(void);
 	void (*load_gdt)(const struct desc_ptr *);
 	void (*load_idt)(const struct desc_ptr *);
-	/* store_gdt has been removed. */
-	void (*store_idt)(struct desc_ptr *);
 	void (*set_ldt)(const void *desc, unsigned entries);
 	unsigned long (*store_tr)(void);
 	void (*load_tls)(struct thread_struct *t, unsigned int cpu);
@@ -136,7 +134,7 @@ struct pv_cpu_ops {
 	void (*alloc_ldt)(struct desc_struct *ldt, unsigned entries);
 	void (*free_ldt)(struct desc_struct *ldt, unsigned entries);
 
-	void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);
+	void (*load_sp0)(unsigned long sp0);
 
 	void (*set_iopl_mask)(unsigned mask);
 
@@ -245,12 +243,6 @@ struct pv_mmu_ops {
 	void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
 			   pte_t *ptep, pte_t pteval);
 	void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
-	void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr,
-			   pmd_t *pmdp, pmd_t pmdval);
-	void (*set_pud_at)(struct mm_struct *mm, unsigned long addr,
-			   pud_t *pudp, pud_t pudval);
-	void (*pte_update)(struct mm_struct *mm, unsigned long addr,
-			   pte_t *ptep);
 
 	pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
 					pte_t *ptep);
@@ -468,8 +460,8 @@ int paravirt_disable_iospace(void);
  */
 #ifdef CONFIG_X86_32
 #define PVOP_VCALL_ARGS							\
-	unsigned long __eax = __eax, __edx = __edx, __ecx = __ecx;	\
-	register void *__sp asm("esp")
+	unsigned long __eax = __eax, __edx = __edx, __ecx = __ecx;
+
 #define PVOP_CALL_ARGS			PVOP_VCALL_ARGS
 
 #define PVOP_CALL_ARG1(x)		"a" ((unsigned long)(x))
@@ -489,8 +481,8 @@ int paravirt_disable_iospace(void);
 /* [re]ax isn't an arg, but the return val */
 #define PVOP_VCALL_ARGS						\
 	unsigned long __edi = __edi, __esi = __esi,		\
-		__edx = __edx, __ecx = __ecx, __eax = __eax;	\
-	register void *__sp asm("rsp")
+		__edx = __edx, __ecx = __ecx, __eax = __eax;
+
 #define PVOP_CALL_ARGS		PVOP_VCALL_ARGS
 
 #define PVOP_CALL_ARG1(x)		"D" ((unsigned long)(x))
@@ -541,7 +533,7 @@ int paravirt_disable_iospace(void);
 			asm volatile(pre				\
 				     paravirt_alt(PARAVIRT_CALL)	\
 				     post				\
-				     : call_clbr, "+r" (__sp)		\
+				     : call_clbr, ASM_CALL_CONSTRAINT	\
 				     : paravirt_type(op),		\
 				       paravirt_clobber(clbr),		\
 				       ##__VA_ARGS__			\
@@ -551,7 +543,7 @@ int paravirt_disable_iospace(void);
 			asm volatile(pre				\
 				     paravirt_alt(PARAVIRT_CALL)	\
 				     post				\
-				     : call_clbr, "+r" (__sp)		\
+				     : call_clbr, ASM_CALL_CONSTRAINT	\
 				     : paravirt_type(op),		\
 				       paravirt_clobber(clbr),		\
 				       ##__VA_ARGS__			\
@@ -578,7 +570,7 @@ int paravirt_disable_iospace(void);
 		asm volatile(pre					\
 			     paravirt_alt(PARAVIRT_CALL)		\
 			     post					\
-			     : call_clbr, "+r" (__sp)			\
+			     : call_clbr, ASM_CALL_CONSTRAINT		\
 			     : paravirt_type(op),			\
 			       paravirt_clobber(clbr),			\
 			       ##__VA_ARGS__				\
diff --git a/arch/x86/include/asm/parport.h b/arch/x86/include/asm/parport.h
index 0d2d3b29118f..163f78259a7e 100644
--- a/arch/x86/include/asm/parport.h
+++ b/arch/x86/include/asm/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PARPORT_H
 #define _ASM_X86_PARPORT_H
 
diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h
index fffb2794dd89..8a3ee355b422 100644
--- a/arch/x86/include/asm/pat.h
+++ b/arch/x86/include/asm/pat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PAT_H
 #define _ASM_X86_PAT_H
 
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index b1e7a45d868a..e1084f71a295 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PCI_DIRECT_H
 #define _ASM_X86_PCI_DIRECT_H
 
diff --git a/arch/x86/include/asm/pci-functions.h b/arch/x86/include/asm/pci-functions.h
index ed0bab427354..1bbc10812ae1 100644
--- a/arch/x86/include/asm/pci-functions.h
+++ b/arch/x86/include/asm/pci-functions.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	PCI BIOS function numbering for conventional PCI BIOS 
  *	systems
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 473a7295ab10..09c06b0fb964 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PCI_H
 #define _ASM_X86_PCI_H
 
diff --git a/arch/x86/include/asm/pci_64.h b/arch/x86/include/asm/pci_64.h
index fe15cfb21b9b..f5411de0ae11 100644
--- a/arch/x86/include/asm/pci_64.h
+++ b/arch/x86/include/asm/pci_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PCI_64_H
 #define _ASM_X86_PCI_64_H
 
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 9f1b21f372fe..7a5d6695abd3 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Low-Level PCI Access for i386 machines.
  *
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 9fa03604b2b3..ba3c523aaf16 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PERCPU_H
 #define _ASM_X86_PERCPU_H
 
@@ -525,7 +526,7 @@ static inline bool x86_this_cpu_variable_test_bit(int nr,
 {
 	bool oldbit;
 
-	asm volatile("bt "__percpu_arg(2)",%1\n\t"
+	asm volatile("bt "__percpu_arg(2)",%1"
 			CC_SET(c)
 			: CC_OUT(c) (oldbit)
 			: "m" (*(unsigned long __percpu *)addr), "Ir" (nr));
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index f353061bba1d..12f54082f4c8 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PERF_EVENT_H
 #define _ASM_X86_PERF_EVENT_H
 
diff --git a/arch/x86/include/asm/perf_event_p4.h b/arch/x86/include/asm/perf_event_p4.h
index d725382c2ae0..94de1a05aeba 100644
--- a/arch/x86/include/asm/perf_event_p4.h
+++ b/arch/x86/include/asm/perf_event_p4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Netburst Performance Events (P4, old Xeon)
  */
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index b2d0cd8288aa..4b5e1eafada7 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGALLOC_H
 #define _ASM_X86_PGALLOC_H
 
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index a8b96e708c2b..685ffe8a0eaf 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_2LEVEL_H
 #define _ASM_X86_PGTABLE_2LEVEL_H
 
diff --git a/arch/x86/include/asm/pgtable-2level_types.h b/arch/x86/include/asm/pgtable-2level_types.h
index 373ab1de909f..f982ef808e7e 100644
--- a/arch/x86/include/asm/pgtable-2level_types.h
+++ b/arch/x86/include/asm/pgtable-2level_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
 #define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
 
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index c8821bab938f..bc4af5453802 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_3LEVEL_H
 #define _ASM_X86_PGTABLE_3LEVEL_H
 
diff --git a/arch/x86/include/asm/pgtable-3level_types.h b/arch/x86/include/asm/pgtable-3level_types.h
index b8a4341faafa..876b4c77d983 100644
--- a/arch/x86/include/asm/pgtable-3level_types.h
+++ b/arch/x86/include/asm/pgtable-3level_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
 #define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
 
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 5b4c44d419c5..f735c3016325 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_H
 #define _ASM_X86_PGTABLE_H
 
@@ -55,8 +56,6 @@ extern pmdval_t early_pmd_flags;
 #else  /* !CONFIG_PARAVIRT */
 #define set_pte(ptep, pte)		native_set_pte(ptep, pte)
 #define set_pte_at(mm, addr, ptep, pte)	native_set_pte_at(mm, addr, ptep, pte)
-#define set_pmd_at(mm, addr, pmdp, pmd)	native_set_pmd_at(mm, addr, pmdp, pmd)
-#define set_pud_at(mm, addr, pudp, pud)	native_set_pud_at(mm, addr, pudp, pud)
 
 #define set_pte_atomic(ptep, pte)					\
 	native_set_pte_atomic(ptep, pte)
@@ -87,8 +86,6 @@ extern pmdval_t early_pmd_flags;
 #define pte_clear(mm, addr, ptep)	native_pte_clear(mm, addr, ptep)
 #define pmd_clear(pmd)			native_pmd_clear(pmd)
 
-#define pte_update(mm, addr, ptep)              do { } while (0)
-
 #define pgd_val(x)	native_pgd_val(x)
 #define __pgd(x)	native_make_pgd(x)
 
@@ -979,31 +976,18 @@ static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr,
 	native_set_pte(ptep, pte);
 }
 
-static inline void native_set_pmd_at(struct mm_struct *mm, unsigned long addr,
-				     pmd_t *pmdp , pmd_t pmd)
+static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+			      pmd_t *pmdp, pmd_t pmd)
 {
 	native_set_pmd(pmdp, pmd);
 }
 
-static inline void native_set_pud_at(struct mm_struct *mm, unsigned long addr,
-				     pud_t *pudp, pud_t pud)
+static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
+			      pud_t *pudp, pud_t pud)
 {
 	native_set_pud(pudp, pud);
 }
 
-#ifndef CONFIG_PARAVIRT
-/*
- * Rules for using pte_update - it must be called after any PTE update which
- * has not been done using the set_pte / clear_pte interfaces.  It is used by
- * shadow mode hypervisors to resynchronize the shadow page tables.  Kernel PTE
- * updates should either be sets, clears, or set_pte_atomic for P->P
- * transitions, which means this hook should only be called for user PTEs.
- * This hook implies a P->P protection or access change has taken place, which
- * requires a subsequent TLB flush.
- */
-#define pte_update(mm, addr, ptep)		do { } while (0)
-#endif
-
 /*
  * We only update the dirty/accessed state if we set
  * the dirty bit by hand in the kernel, since the hardware
@@ -1031,7 +1015,6 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
 				       pte_t *ptep)
 {
 	pte_t pte = native_ptep_get_and_clear(ptep);
-	pte_update(mm, addr, ptep);
 	return pte;
 }
 
@@ -1058,7 +1041,6 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm,
 				      unsigned long addr, pte_t *ptep)
 {
 	clear_bit(_PAGE_BIT_RW, (unsigned long *)&ptep->pte);
-	pte_update(mm, addr, ptep);
 }
 
 #define flush_tlb_fix_spurious_fault(vma, address) do { } while (0)
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
index bfab55675c16..e67c0620aec2 100644
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_32_H
 #define _ASM_X86_PGTABLE_32_H
 
diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index 9fb2f2bc8245..f2ca9b28fd68 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_32_DEFS_H
 #define _ASM_X86_PGTABLE_32_DEFS_H
 
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 972a4698c530..e9f05331e732 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_64_H
 #define _ASM_X86_PGTABLE_64_H
 
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index 06470da156ba..6d5f45dcd4a1 100644
--- a/arch/x86/include/asm/pgtable_64_types.h
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_64_DEFS_H
 #define _ASM_X86_PGTABLE_64_DEFS_H
 
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index f1492473f10e..9e9b05fc4860 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PGTABLE_DEFS_H
 #define _ASM_X86_PGTABLE_DEFS_H
 
@@ -199,10 +200,9 @@ enum page_cache_mode {
 
 #define _PAGE_ENC	(_AT(pteval_t, sme_me_mask))
 
-#define _PAGE_TABLE	(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER |	\
-			 _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_ENC)
 #define _KERNPG_TABLE	(_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED |	\
 			 _PAGE_DIRTY | _PAGE_ENC)
+#define _PAGE_TABLE	(_KERNPG_TABLE | _PAGE_USER)
 
 #define __PAGE_KERNEL_ENC	(__PAGE_KERNEL | _PAGE_ENC)
 #define __PAGE_KERNEL_ENC_WP	(__PAGE_KERNEL_WP | _PAGE_ENC)
diff --git a/arch/x86/include/asm/pkeys.h b/arch/x86/include/asm/pkeys.h
index b3b09b98896d..a0ba1ffda0df 100644
--- a/arch/x86/include/asm/pkeys.h
+++ b/arch/x86/include/asm/pkeys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PKEYS_H
 #define _ASM_X86_PKEYS_H
 
diff --git a/arch/x86/include/asm/pm-trace.h b/arch/x86/include/asm/pm-trace.h
index 7b7ac42c3661..bfa32aa428e5 100644
--- a/arch/x86/include/asm/pm-trace.h
+++ b/arch/x86/include/asm/pm-trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PM_TRACE_H
 #define _ASM_X86_PM_TRACE_H
 
diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
index f565f6dd59d4..374336e217ff 100644
--- a/arch/x86/include/asm/posix_types.h
+++ b/arch/x86/include/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 # ifdef CONFIG_X86_32
 #  include <asm/posix_types_32.h>
 # else
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index ec1f3c651150..7f2dbd91fc74 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PREEMPT_H
 #define __ASM_PREEMPT_H
 
@@ -100,19 +101,14 @@ static __always_inline bool should_resched(int preempt_offset)
 
 #ifdef CONFIG_PREEMPT
   extern asmlinkage void ___preempt_schedule(void);
-# define __preempt_schedule()					\
-({								\
-	register void *__sp asm(_ASM_SP);			\
-	asm volatile ("call ___preempt_schedule" : "+r"(__sp));	\
-})
+# define __preempt_schedule() \
+	asm volatile ("call ___preempt_schedule" : ASM_CALL_CONSTRAINT)
 
   extern asmlinkage void preempt_schedule(void);
   extern asmlinkage void ___preempt_schedule_notrace(void);
-# define __preempt_schedule_notrace()					\
-({									\
-	register void *__sp asm(_ASM_SP);				\
-	asm volatile ("call ___preempt_schedule_notrace" : "+r"(__sp));	\
-})
+# define __preempt_schedule_notrace() \
+	asm volatile ("call ___preempt_schedule_notrace" : ASM_CALL_CONSTRAINT)
+
   extern asmlinkage void preempt_schedule_notrace(void);
 #endif
 
diff --git a/arch/x86/include/asm/probe_roms.h b/arch/x86/include/asm/probe_roms.h
index 4950a0b1d09c..1c7f3815bbd6 100644
--- a/arch/x86/include/asm/probe_roms.h
+++ b/arch/x86/include/asm/probe_roms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PROBE_ROMS_H_
 #define _PROBE_ROMS_H_
 struct pci_dev;
diff --git a/arch/x86/include/asm/processor-cyrix.h b/arch/x86/include/asm/processor-cyrix.h
index 1198f2a0e42c..aaedd73ea2c6 100644
--- a/arch/x86/include/asm/processor-cyrix.h
+++ b/arch/x86/include/asm/processor-cyrix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NSC/Cyrix CPU indexed register access. Must be inlined instead of
  * macros to ensure correct access ordering
diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h
index dc723b64acf0..43212a43ee69 100644
--- a/arch/x86/include/asm/processor-flags.h
+++ b/arch/x86/include/asm/processor-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PROCESSOR_FLAGS_H
 #define _ASM_X86_PROCESSOR_FLAGS_H
 
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 3fa26a61eabc..2db7cf720b04 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PROCESSOR_H
 #define _ASM_X86_PROCESSOR_H
 
@@ -430,7 +431,9 @@ typedef struct {
 struct thread_struct {
 	/* Cached TLS descriptors: */
 	struct desc_struct	tls_array[GDT_ENTRY_TLS_ENTRIES];
+#ifdef CONFIG_X86_32
 	unsigned long		sp0;
+#endif
 	unsigned long		sp;
 #ifdef CONFIG_X86_32
 	unsigned long		sysenter_cs;
@@ -517,16 +520,9 @@ static inline void native_set_iopl_mask(unsigned mask)
 }
 
 static inline void
-native_load_sp0(struct tss_struct *tss, struct thread_struct *thread)
+native_load_sp0(unsigned long sp0)
 {
-	tss->x86_tss.sp0 = thread->sp0;
-#ifdef CONFIG_X86_32
-	/* Only happens when SEP is enabled, no need to test "SEP"arately: */
-	if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
-		tss->x86_tss.ss1 = thread->sysenter_cs;
-		wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
-	}
-#endif
+	this_cpu_write(cpu_tss.x86_tss.sp0, sp0);
 }
 
 static inline void native_swapgs(void)
@@ -546,15 +542,20 @@ static inline unsigned long current_top_of_stack(void)
 #endif
 }
 
+static inline bool on_thread_stack(void)
+{
+	return (unsigned long)(current_top_of_stack() -
+			       current_stack_pointer) < THREAD_SIZE;
+}
+
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #else
 #define __cpuid			native_cpuid
 
-static inline void load_sp0(struct tss_struct *tss,
-			    struct thread_struct *thread)
+static inline void load_sp0(unsigned long sp0)
 {
-	native_load_sp0(tss, thread);
+	native_load_sp0(sp0);
 }
 
 #define set_iopl_mask native_set_iopl_mask
@@ -677,8 +678,6 @@ static inline void sync_core(void)
 	 * Like all of Linux's memory ordering operations, this is a
 	 * compiler barrier as well.
 	 */
-	register void *__sp asm(_ASM_SP);
-
 #ifdef CONFIG_X86_32
 	asm volatile (
 		"pushfl\n\t"
@@ -686,7 +685,7 @@ static inline void sync_core(void)
 		"pushl $1f\n\t"
 		"iret\n\t"
 		"1:"
-		: "+r" (__sp) : : "memory");
+		: ASM_CALL_CONSTRAINT : : "memory");
 #else
 	unsigned int tmp;
 
@@ -703,7 +702,7 @@ static inline void sync_core(void)
 		"iretq\n\t"
 		UNWIND_HINT_RESTORE
 		"1:"
-		: "=&r" (tmp), "+r" (__sp) : : "cc", "memory");
+		: "=&r" (tmp), ASM_CALL_CONSTRAINT : : "cc", "memory");
 #endif
 }
 
@@ -805,6 +804,15 @@ static inline void spin_lock_prefetch(const void *x)
 #define TOP_OF_INIT_STACK ((unsigned long)&init_stack + sizeof(init_stack) - \
 			   TOP_OF_KERNEL_STACK_PADDING)
 
+#define task_top_of_stack(task) ((unsigned long)(task_pt_regs(task) + 1))
+
+#define task_pt_regs(task) \
+({									\
+	unsigned long __ptr = (unsigned long)task_stack_page(task);	\
+	__ptr += THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING;		\
+	((struct pt_regs *)__ptr) - 1;					\
+})
+
 #ifdef CONFIG_X86_32
 /*
  * User space process size: 3GB (default).
@@ -824,23 +832,6 @@ static inline void spin_lock_prefetch(const void *x)
 	.addr_limit		= KERNEL_DS,				  \
 }
 
-/*
- * TOP_OF_KERNEL_STACK_PADDING reserves 8 bytes on top of the ring0 stack.
- * This is necessary to guarantee that the entire "struct pt_regs"
- * is accessible even if the CPU haven't stored the SS/ESP registers
- * on the stack (interrupt gate does not save these registers
- * when switching to the same priv ring).
- * Therefore beware: accessing the ss/esp fields of the
- * "struct pt_regs" is possible, but they may contain the
- * completely wrong values.
- */
-#define task_pt_regs(task) \
-({									\
-	unsigned long __ptr = (unsigned long)task_stack_page(task);	\
-	__ptr += THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING;		\
-	((struct pt_regs *)__ptr) - 1;					\
-})
-
 #define KSTK_ESP(task)		(task_pt_regs(task)->sp)
 
 #else
@@ -874,11 +865,9 @@ static inline void spin_lock_prefetch(const void *x)
 #define STACK_TOP_MAX		TASK_SIZE_MAX
 
 #define INIT_THREAD  {						\
-	.sp0			= TOP_OF_INIT_STACK,		\
 	.addr_limit		= KERNEL_DS,			\
 }
 
-#define task_pt_regs(tsk)	((struct pt_regs *)(tsk)->thread.sp0 - 1)
 extern unsigned long KSTK_ESP(struct task_struct *task);
 
 #endif /* CONFIG_X86_64 */
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h
index b408b1886195..6e81788a30c1 100644
--- a/arch/x86/include/asm/proto.h
+++ b/arch/x86/include/asm/proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PROTO_H
 #define _ASM_X86_PROTO_H
 
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 91c04c8e67fa..14131dd06b29 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PTRACE_H
 #define _ASM_X86_PTRACE_H
 
@@ -135,9 +136,9 @@ static inline int v8086_mode(struct pt_regs *regs)
 #endif
 }
 
-#ifdef CONFIG_X86_64
 static inline bool user_64bit_mode(struct pt_regs *regs)
 {
+#ifdef CONFIG_X86_64
 #ifndef CONFIG_PARAVIRT
 	/*
 	 * On non-paravirt systems, this is the only long mode CPL 3
@@ -148,8 +149,12 @@ static inline bool user_64bit_mode(struct pt_regs *regs)
 	/* Headers are too twisted for this to go in paravirt.h. */
 	return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
 #endif
+#else /* !CONFIG_X86_64 */
+	return false;
+#endif
 }
 
+#ifdef CONFIG_X86_64
 #define current_user_stack_pointer()	current_pt_regs()->sp
 #define compat_user_stack_pointer()	current_pt_regs()->sp
 #endif
diff --git a/arch/x86/include/asm/purgatory.h b/arch/x86/include/asm/purgatory.h
index d7da2729903d..92c34e517da1 100644
--- a/arch/x86/include/asm/purgatory.h
+++ b/arch/x86/include/asm/purgatory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PURGATORY_H
 #define _ASM_X86_PURGATORY_H
 
diff --git a/arch/x86/include/asm/pvclock-abi.h b/arch/x86/include/asm/pvclock-abi.h
index 67f08230103a..1436226efe3e 100644
--- a/arch/x86/include/asm/pvclock-abi.h
+++ b/arch/x86/include/asm/pvclock-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PVCLOCK_ABI_H
 #define _ASM_X86_PVCLOCK_ABI_H
 #ifndef __ASSEMBLY__
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index 448cfe1b48cf..3e4ed8fb5f91 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PVCLOCK_H
 #define _ASM_X86_PVCLOCK_H
 
diff --git a/arch/x86/include/asm/qrwlock.h b/arch/x86/include/asm/qrwlock.h
index c537cbb038a7..8656b5a6e8e7 100644
--- a/arch/x86/include/asm/qrwlock.h
+++ b/arch/x86/include/asm/qrwlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_QRWLOCK_H
 #define _ASM_X86_QRWLOCK_H
 
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
index 48a706f641f2..5e16b5d40d32 100644
--- a/arch/x86/include/asm/qspinlock.h
+++ b/arch/x86/include/asm/qspinlock.h
@@ -1,6 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_QSPINLOCK_H
 #define _ASM_X86_QSPINLOCK_H
 
+#include <linux/jump_label.h>
 #include <asm/cpufeature.h>
 #include <asm-generic/qspinlock_types.h>
 #include <asm/paravirt.h>
@@ -46,10 +48,14 @@ static inline void queued_spin_unlock(struct qspinlock *lock)
 #endif
 
 #ifdef CONFIG_PARAVIRT
+DECLARE_STATIC_KEY_TRUE(virt_spin_lock_key);
+
+void native_pv_lock_init(void) __init;
+
 #define virt_spin_lock virt_spin_lock
 static inline bool virt_spin_lock(struct qspinlock *lock)
 {
-	if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
+	if (!static_branch_likely(&virt_spin_lock_key))
 		return false;
 
 	/*
@@ -65,6 +71,10 @@ static inline bool virt_spin_lock(struct qspinlock *lock)
 
 	return true;
 }
+#else
+static inline void native_pv_lock_init(void)
+{
+}
 #endif /* CONFIG_PARAVIRT */
 
 #include <asm-generic/qspinlock.h>
diff --git a/arch/x86/include/asm/qspinlock_paravirt.h b/arch/x86/include/asm/qspinlock_paravirt.h
index 9d55f9b6e167..923307ea11c7 100644
--- a/arch/x86/include/asm/qspinlock_paravirt.h
+++ b/arch/x86/include/asm/qspinlock_paravirt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_QSPINLOCK_PARAVIRT_H
 #define __ASM_QSPINLOCK_PARAVIRT_H
 
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
index 90d91520c13a..63b3393bd98e 100644
--- a/arch/x86/include/asm/realmode.h
+++ b/arch/x86/include/asm/realmode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_X86_REALMODE_H
 #define _ARCH_X86_REALMODE_H
 
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index fc62ba8dce93..a671a1145906 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_REBOOT_H
 #define _ASM_X86_REBOOT_H
 
diff --git a/arch/x86/include/asm/reboot_fixups.h b/arch/x86/include/asm/reboot_fixups.h
index 765debe4c54c..96515658ce12 100644
--- a/arch/x86/include/asm/reboot_fixups.h
+++ b/arch/x86/include/asm/reboot_fixups.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_REBOOT_FIXUPS_H
 #define _ASM_X86_REBOOT_FIXUPS_H
 
diff --git a/arch/x86/include/asm/refcount.h b/arch/x86/include/asm/refcount.h
index ff871210b9f2..4e44250e7d0d 100644
--- a/arch/x86/include/asm/refcount.h
+++ b/arch/x86/include/asm/refcount.h
@@ -15,7 +15,7 @@
  * back to the regular execution flow in .text.
  */
 #define _REFCOUNT_EXCEPTION				\
-	".pushsection .text.unlikely\n"			\
+	".pushsection .text..refcount\n"		\
 	"111:\tlea %[counter], %%" _ASM_CX "\n"		\
 	"112:\t" ASM_UD0 "\n"				\
 	ASM_UNREACHABLE					\
diff --git a/arch/x86/include/asm/rio.h b/arch/x86/include/asm/rio.h
index 97bab6388a92..0a21986d2238 100644
--- a/arch/x86/include/asm/rio.h
+++ b/arch/x86/include/asm/rio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Derived from include/asm-x86/mach-summit/mach_mpparse.h
  *          and include/asm-x86/mach-default/bios_ebda.h
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
index 045f99211a99..f91c365e57c3 100644
--- a/arch/x86/include/asm/rmwcc.h
+++ b/arch/x86/include/asm/rmwcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_RMWcc
 #define _ASM_X86_RMWcc
 
@@ -28,7 +29,7 @@ cc_label:								\
 #define __GEN_RMWcc(fullop, var, cc, clobbers, ...)			\
 do {									\
 	bool c;								\
-	asm volatile (fullop ";" CC_SET(cc)				\
+	asm volatile (fullop CC_SET(cc)					\
 			: [counter] "+m" (var), CC_OUT(cc) (c)		\
 			: __VA_ARGS__ : clobbers);			\
 	return c;							\
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
index a34e0d4b957d..4c25cf6caefa 100644
--- a/arch/x86/include/asm/rwsem.h
+++ b/arch/x86/include/asm/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* rwsem.h: R/W semaphores implemented using XADD/CMPXCHG for i486+
  *
  * Written by David Howells (dhowells@redhat.com).
@@ -60,18 +61,33 @@
 /*
  * lock for reading
  */
+#define ____down_read(sem, slow_path)					\
+({									\
+	struct rw_semaphore* ret;					\
+	asm volatile("# beginning down_read\n\t"			\
+		     LOCK_PREFIX _ASM_INC "(%[sem])\n\t"		\
+		     /* adds 0x00000001 */				\
+		     "  jns        1f\n"				\
+		     "  call " slow_path "\n"				\
+		     "1:\n\t"						\
+		     "# ending down_read\n\t"				\
+		     : "+m" (sem->count), "=a" (ret),			\
+			ASM_CALL_CONSTRAINT				\
+		     : [sem] "a" (sem)					\
+		     : "memory", "cc");					\
+	ret;								\
+})
+
 static inline void __down_read(struct rw_semaphore *sem)
 {
-	asm volatile("# beginning down_read\n\t"
-		     LOCK_PREFIX _ASM_INC "(%1)\n\t"
-		     /* adds 0x00000001 */
-		     "  jns        1f\n"
-		     "  call call_rwsem_down_read_failed\n"
-		     "1:\n\t"
-		     "# ending down_read\n\t"
-		     : "+m" (sem->count)
-		     : "a" (sem)
-		     : "memory", "cc");
+	____down_read(sem, "call_rwsem_down_read_failed");
+}
+
+static inline int __down_read_killable(struct rw_semaphore *sem)
+{
+	if (IS_ERR(____down_read(sem, "call_rwsem_down_read_failed_killable")))
+		return -EINTR;
+	return 0;
 }
 
 /*
@@ -81,17 +97,18 @@ static inline bool __down_read_trylock(struct rw_semaphore *sem)
 {
 	long result, tmp;
 	asm volatile("# beginning __down_read_trylock\n\t"
-		     "  mov          %0,%1\n\t"
+		     "  mov          %[count],%[result]\n\t"
 		     "1:\n\t"
-		     "  mov          %1,%2\n\t"
-		     "  add          %3,%2\n\t"
+		     "  mov          %[result],%[tmp]\n\t"
+		     "  add          %[inc],%[tmp]\n\t"
 		     "  jle	     2f\n\t"
-		     LOCK_PREFIX "  cmpxchg  %2,%0\n\t"
+		     LOCK_PREFIX "  cmpxchg  %[tmp],%[count]\n\t"
 		     "  jnz	     1b\n\t"
 		     "2:\n\t"
 		     "# ending __down_read_trylock\n\t"
-		     : "+m" (sem->count), "=&a" (result), "=&r" (tmp)
-		     : "i" (RWSEM_ACTIVE_READ_BIAS)
+		     : [count] "+m" (sem->count), [result] "=&a" (result),
+		       [tmp] "=&r" (tmp)
+		     : [inc] "i" (RWSEM_ACTIVE_READ_BIAS)
 		     : "memory", "cc");
 	return result >= 0;
 }
@@ -103,10 +120,9 @@ static inline bool __down_read_trylock(struct rw_semaphore *sem)
 ({							\
 	long tmp;					\
 	struct rw_semaphore* ret;			\
-	register void *__sp asm(_ASM_SP);		\
 							\
 	asm volatile("# beginning down_write\n\t"	\
-		     LOCK_PREFIX "  xadd      %1,(%4)\n\t"	\
+		     LOCK_PREFIX "  xadd      %[tmp],(%[sem])\n\t"	\
 		     /* adds 0xffff0001, returns the old value */ \
 		     "  test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t" \
 		     /* was the active mask 0 before? */\
@@ -114,8 +130,9 @@ static inline bool __down_read_trylock(struct rw_semaphore *sem)
 		     "  call " slow_path "\n"		\
 		     "1:\n"				\
 		     "# ending down_write"		\
-		     : "+m" (sem->count), "=d" (tmp), "=a" (ret), "+r" (__sp) \
-		     : "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS) \
+		     : "+m" (sem->count), [tmp] "=d" (tmp),	\
+		       "=a" (ret), ASM_CALL_CONSTRAINT	\
+		     : [sem] "a" (sem), "[tmp]" (RWSEM_ACTIVE_WRITE_BIAS) \
 		     : "memory", "cc");			\
 	ret;						\
 })
@@ -141,21 +158,21 @@ static inline bool __down_write_trylock(struct rw_semaphore *sem)
 	bool result;
 	long tmp0, tmp1;
 	asm volatile("# beginning __down_write_trylock\n\t"
-		     "  mov          %0,%1\n\t"
+		     "  mov          %[count],%[tmp0]\n\t"
 		     "1:\n\t"
 		     "  test " __ASM_SEL(%w1,%k1) "," __ASM_SEL(%w1,%k1) "\n\t"
 		     /* was the active mask 0 before? */
 		     "  jnz          2f\n\t"
-		     "  mov          %1,%2\n\t"
-		     "  add          %4,%2\n\t"
-		     LOCK_PREFIX "  cmpxchg  %2,%0\n\t"
+		     "  mov          %[tmp0],%[tmp1]\n\t"
+		     "  add          %[inc],%[tmp1]\n\t"
+		     LOCK_PREFIX "  cmpxchg  %[tmp1],%[count]\n\t"
 		     "  jnz	     1b\n\t"
 		     "2:\n\t"
 		     CC_SET(e)
 		     "# ending __down_write_trylock\n\t"
-		     : "+m" (sem->count), "=&a" (tmp0), "=&r" (tmp1),
-		       CC_OUT(e) (result)
-		     : "er" (RWSEM_ACTIVE_WRITE_BIAS)
+		     : [count] "+m" (sem->count), [tmp0] "=&a" (tmp0),
+		       [tmp1] "=&r" (tmp1), CC_OUT(e) (result)
+		     : [inc] "er" (RWSEM_ACTIVE_WRITE_BIAS)
 		     : "memory");
 	return result;
 }
@@ -167,14 +184,14 @@ static inline void __up_read(struct rw_semaphore *sem)
 {
 	long tmp;
 	asm volatile("# beginning __up_read\n\t"
-		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+		     LOCK_PREFIX "  xadd      %[tmp],(%[sem])\n\t"
 		     /* subtracts 1, returns the old value */
 		     "  jns        1f\n\t"
 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
 		     "1:\n"
 		     "# ending __up_read\n"
-		     : "+m" (sem->count), "=d" (tmp)
-		     : "a" (sem), "1" (-RWSEM_ACTIVE_READ_BIAS)
+		     : "+m" (sem->count), [tmp] "=d" (tmp)
+		     : [sem] "a" (sem), "[tmp]" (-RWSEM_ACTIVE_READ_BIAS)
 		     : "memory", "cc");
 }
 
@@ -185,14 +202,14 @@ static inline void __up_write(struct rw_semaphore *sem)
 {
 	long tmp;
 	asm volatile("# beginning __up_write\n\t"
-		     LOCK_PREFIX "  xadd      %1,(%2)\n\t"
+		     LOCK_PREFIX "  xadd      %[tmp],(%[sem])\n\t"
 		     /* subtracts 0xffff0001, returns the old value */
 		     "  jns        1f\n\t"
 		     "  call call_rwsem_wake\n" /* expects old value in %edx */
 		     "1:\n\t"
 		     "# ending __up_write\n"
-		     : "+m" (sem->count), "=d" (tmp)
-		     : "a" (sem), "1" (-RWSEM_ACTIVE_WRITE_BIAS)
+		     : "+m" (sem->count), [tmp] "=d" (tmp)
+		     : [sem] "a" (sem), "[tmp]" (-RWSEM_ACTIVE_WRITE_BIAS)
 		     : "memory", "cc");
 }
 
@@ -202,7 +219,7 @@ static inline void __up_write(struct rw_semaphore *sem)
 static inline void __downgrade_write(struct rw_semaphore *sem)
 {
 	asm volatile("# beginning __downgrade_write\n\t"
-		     LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
+		     LOCK_PREFIX _ASM_ADD "%[inc],(%[sem])\n\t"
 		     /*
 		      * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
 		      *     0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
@@ -212,7 +229,7 @@ static inline void __downgrade_write(struct rw_semaphore *sem)
 		     "1:\n\t"
 		     "# ending __downgrade_write\n"
 		     : "+m" (sem->count)
-		     : "a" (sem), "er" (-RWSEM_WAITING_BIAS)
+		     : [sem] "a" (sem), [inc] "er" (-RWSEM_WAITING_BIAS)
 		     : "memory", "cc");
 }
 
diff --git a/arch/x86/include/asm/seccomp.h b/arch/x86/include/asm/seccomp.h
index 0c8c7c8861b4..2bd1338de236 100644
--- a/arch/x86/include/asm/seccomp.h
+++ b/arch/x86/include/asm/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SECCOMP_H
 #define _ASM_X86_SECCOMP_H
 
diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h
index 2f75f30cb2f6..d6baf23782bc 100644
--- a/arch/x86/include/asm/sections.h
+++ b/arch/x86/include/asm/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SECTIONS_H
 #define _ASM_X86_SECTIONS_H
 
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index 066aaf813141..b20f9d623f9c 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SEGMENT_H
 #define _ASM_X86_SEGMENT_H
 
diff --git a/arch/x86/include/asm/serial.h b/arch/x86/include/asm/serial.h
index bb658211edad..ece8299d2695 100644
--- a/arch/x86/include/asm/serial.h
+++ b/arch/x86/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SERIAL_H
 #define _ASM_X86_SERIAL_H
 
diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h
index cd71273ec49d..bd090367236c 100644
--- a/arch/x86/include/asm/set_memory.h
+++ b/arch/x86/include/asm/set_memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SET_MEMORY_H
 #define _ASM_X86_SET_MEMORY_H
 
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index a65cf544686a..ae13bc974416 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SETUP_H
 #define _ASM_X86_SETUP_H
 
diff --git a/arch/x86/include/asm/shmparam.h b/arch/x86/include/asm/shmparam.h
index 0880cf0917b9..c4041819c3e5 100644
--- a/arch/x86/include/asm/shmparam.h
+++ b/arch/x86/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SHMPARAM_H
 #define _ASM_X86_SHMPARAM_H
 
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index e6cd2c489dbb..140d890c2c98 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SIGCONTEXT_H
 #define _ASM_X86_SIGCONTEXT_H
 
diff --git a/arch/x86/include/asm/sigframe.h b/arch/x86/include/asm/sigframe.h
index 34edd1650bae..f176114c04d4 100644
--- a/arch/x86/include/asm/sigframe.h
+++ b/arch/x86/include/asm/sigframe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SIGFRAME_H
 #define _ASM_X86_SIGFRAME_H
 
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
index 452c88b8ad06..bd26834724e5 100644
--- a/arch/x86/include/asm/sighandling.h
+++ b/arch/x86/include/asm/sighandling.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SIGHANDLING_H
 #define _ASM_X86_SIGHANDLING_H
 
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 8af22be0fe61..5f9012ff52ed 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SIGNAL_H
 #define _ASM_X86_SIGNAL_H
 
diff --git a/arch/x86/include/asm/simd.h b/arch/x86/include/asm/simd.h
index 6c8a7ed13365..a341c878e977 100644
--- a/arch/x86/include/asm/simd.h
+++ b/arch/x86/include/asm/simd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <asm/fpu/api.h>
 
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 47103eca3775..461f53d27708 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SMP_H
 #define _ASM_X86_SMP_H
 #ifndef __ASSEMBLY__
diff --git a/arch/x86/include/asm/sparsemem.h b/arch/x86/include/asm/sparsemem.h
index 1f5bee2c202f..4fc1e9d3c43e 100644
--- a/arch/x86/include/asm/sparsemem.h
+++ b/arch/x86/include/asm/sparsemem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SPARSEMEM_H
 #define _ASM_X86_SPARSEMEM_H
 
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index 9efaabf5b54b..317fc59b512c 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SPECIAL_INSNS_H
 #define _ASM_X86_SPECIAL_INSNS_H
 
@@ -135,6 +136,11 @@ static inline void native_wbinvd(void)
 
 extern asmlinkage void native_load_gs_index(unsigned);
 
+static inline unsigned long __read_cr4(void)
+{
+	return native_read_cr4();
+}
+
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
 #else
@@ -173,11 +179,6 @@ static inline void write_cr3(unsigned long x)
 	native_write_cr3(x);
 }
 
-static inline unsigned long __read_cr4(void)
-{
-	return native_read_cr4();
-}
-
 static inline void __write_cr4(unsigned long x)
 {
 	native_write_cr4(x);
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 6d391909e864..5b6bc7016c22 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SPINLOCK_H
 #define _ASM_X86_SPINLOCK_H
 
@@ -41,11 +42,4 @@
 
 #include <asm/qrwlock.h>
 
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock)	cpu_relax()
-#define arch_read_relax(lock)	cpu_relax()
-#define arch_write_relax(lock)	cpu_relax()
-
 #endif /* _ASM_X86_SPINLOCK_H */
diff --git a/arch/x86/include/asm/spinlock_types.h b/arch/x86/include/asm/spinlock_types.h
index 25311ebb446c..bf3e34b25afc 100644
--- a/arch/x86/include/asm/spinlock_types.h
+++ b/arch/x86/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SPINLOCK_TYPES_H
 #define _ASM_X86_SPINLOCK_TYPES_H
 
diff --git a/arch/x86/include/asm/sta2x11.h b/arch/x86/include/asm/sta2x11.h
index e9d32df89ccc..e0975e9c4f47 100644
--- a/arch/x86/include/asm/sta2x11.h
+++ b/arch/x86/include/asm/sta2x11.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Header file for STMicroelectronics ConneXt (STA2X11) IOHub
  */
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 8abedf1d650e..371b3a4af000 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * GCC stack protector support.
  *
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
index 2e41c50ddf47..8da111b3c342 100644
--- a/arch/x86/include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
diff --git a/arch/x86/include/asm/string.h b/arch/x86/include/asm/string.h
index 09224d7a5862..c3c2c1914d65 100644
--- a/arch/x86/include/asm/string.h
+++ b/arch/x86/include/asm/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_X86_32
 # include <asm/string_32.h>
 #else
diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h
index e371e7229042..076502241eae 100644
--- a/arch/x86/include/asm/string_32.h
+++ b/arch/x86/include/asm/string_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_STRING_32_H
 #define _ASM_X86_STRING_32_H
 
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index f372a70a523f..0b1b4445f4c5 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_STRING_64_H
 #define _ASM_X86_STRING_64_H
 
diff --git a/arch/x86/include/asm/suspend.h b/arch/x86/include/asm/suspend.h
index 2fab6c2c3575..ecffe81ff65c 100644
--- a/arch/x86/include/asm/suspend.h
+++ b/arch/x86/include/asm/suspend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_X86_32
 # include <asm/suspend_32.h>
 #else
diff --git a/arch/x86/include/asm/suspend_32.h b/arch/x86/include/asm/suspend_32.h
index 8e9dbe7b73a1..982c325dad33 100644
--- a/arch/x86/include/asm/suspend_32.h
+++ b/arch/x86/include/asm/suspend_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
  * Based on code
diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h
index 2bd96b4df140..7306e911faee 100644
--- a/arch/x86/include/asm/suspend_64.h
+++ b/arch/x86/include/asm/suspend_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
  * Based on code
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index 14835dd205a5..78dd9df88157 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SVM_H
 #define __SVM_H
 
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
index d2f69b9ff732..bdf9aed40403 100644
--- a/arch/x86/include/asm/swiotlb.h
+++ b/arch/x86/include/asm/swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SWIOTLB_H
 #define _ASM_X86_SWIOTLB_H
 
diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
index fcc5cd387fd1..8c6bd6863db9 100644
--- a/arch/x86/include/asm/switch_to.h
+++ b/arch/x86/include/asm/switch_to.h
@@ -1,6 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SWITCH_TO_H
 #define _ASM_X86_SWITCH_TO_H
 
+#include <linux/sched/task_stack.h>
+
 struct task_struct; /* one of the stranger aspects of C forward declarations */
 
 struct task_struct *__switch_to_asm(struct task_struct *prev,
@@ -72,4 +75,26 @@ do {									\
 	((last) = __switch_to_asm((prev), (next)));			\
 } while (0)
 
+#ifdef CONFIG_X86_32
+static inline void refresh_sysenter_cs(struct thread_struct *thread)
+{
+	/* Only happens when SEP is enabled, no need to test "SEP"arately: */
+	if (unlikely(this_cpu_read(cpu_tss.x86_tss.ss1) == thread->sysenter_cs))
+		return;
+
+	this_cpu_write(cpu_tss.x86_tss.ss1, thread->sysenter_cs);
+	wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
+}
+#endif
+
+/* This is used when switching tasks or entering/exiting vm86 mode. */
+static inline void update_sp0(struct task_struct *task)
+{
+#ifdef CONFIG_X86_32
+	load_sp0(task->thread.sp0);
+#else
+	load_sp0(task_top_of_stack(task));
+#endif
+}
+
 #endif /* _ASM_X86_SWITCH_TO_H */
diff --git a/arch/x86/include/asm/sync_bitops.h b/arch/x86/include/asm/sync_bitops.h
index cbf8847d02a0..2fe745356fb1 100644
--- a/arch/x86/include/asm/sync_bitops.h
+++ b/arch/x86/include/asm/sync_bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SYNC_BITOPS_H
 #define _ASM_X86_SYNC_BITOPS_H
 
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index 91dfcafe27a6..bad25bb80679 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -21,7 +21,7 @@ asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
 asmlinkage long sys_iopl(unsigned int);
 
 /* kernel/ldt.c */
-asmlinkage int sys_modify_ldt(int, void __user *, unsigned long);
+asmlinkage long sys_modify_ldt(int, void __user *, unsigned long);
 
 /* kernel/signal.c */
 asmlinkage long sys_rt_sigreturn(void);
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h
index 90395063383c..2ecd34e2d46c 100644
--- a/arch/x86/include/asm/text-patching.h
+++ b/arch/x86/include/asm/text-patching.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TEXT_PATCHING_H
 #define _ASM_X86_TEXT_PATCHING_H
 
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 5161da1a0fa0..70f425947dc5 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: low-level thread information
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
@@ -158,17 +159,6 @@ struct thread_info {
  */
 #ifndef __ASSEMBLY__
 
-static inline unsigned long current_stack_pointer(void)
-{
-	unsigned long sp;
-#ifdef CONFIG_X86_64
-	asm("mov %%rsp,%0" : "=g" (sp));
-#else
-	asm("mov %%esp,%0" : "=g" (sp));
-#endif
-	return sp;
-}
-
 /*
  * Walks up the stack frames to make sure that the specified object is
  * entirely contained by a single stack frame.
diff --git a/arch/x86/include/asm/time.h b/arch/x86/include/asm/time.h
index 92b8aec06970..cef818b16045 100644
--- a/arch/x86/include/asm/time.h
+++ b/arch/x86/include/asm/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TIME_H
 #define _ASM_X86_TIME_H
 
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h
index 2016962103df..7365dd4acffb 100644
--- a/arch/x86/include/asm/timer.h
+++ b/arch/x86/include/asm/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TIMER_H
 #define _ASM_X86_TIMER_H
 #include <linux/pm.h>
@@ -8,7 +9,7 @@
 #define TICK_SIZE (tick_nsec / 1000)
 
 unsigned long long native_sched_clock(void);
-extern int recalibrate_cpu_khz(void);
+extern void recalibrate_cpu_khz(void);
 
 extern int no_timer_check;
 
diff --git a/arch/x86/include/asm/timex.h b/arch/x86/include/asm/timex.h
index 1375cfc93960..a4a8b1b16c0c 100644
--- a/arch/x86/include/asm/timex.h
+++ b/arch/x86/include/asm/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TIMEX_H
 #define _ASM_X86_TIMEX_H
 
diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h
index 79a4ca6a9606..cb0a1f470980 100644
--- a/arch/x86/include/asm/tlb.h
+++ b/arch/x86/include/asm/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TLB_H
 #define _ASM_X86_TLB_H
 
diff --git a/arch/x86/include/asm/tlbbatch.h b/arch/x86/include/asm/tlbbatch.h
index f4a6ff352a0e..1ad56eb3e8a8 100644
--- a/arch/x86/include/asm/tlbbatch.h
+++ b/arch/x86/include/asm/tlbbatch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_X86_TLBBATCH_H
 #define _ARCH_X86_TLBBATCH_H
 
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 4893abf7f74f..509046cfa5ce 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TLBFLUSH_H
 #define _ASM_X86_TLBFLUSH_H
 
@@ -82,6 +83,22 @@ static inline u64 inc_mm_tlb_gen(struct mm_struct *mm)
 #define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
 #endif
 
+static inline bool tlb_defer_switch_to_init_mm(void)
+{
+	/*
+	 * If we have PCID, then switching to init_mm is reasonably
+	 * fast.  If we don't have PCID, then switching to init_mm is
+	 * quite slow, so we try to defer it in the hopes that we can
+	 * avoid it entirely.  The latter approach runs the risk of
+	 * receiving otherwise unnecessary IPIs.
+	 *
+	 * This choice is just a heuristic.  The tlb code can handle this
+	 * function returning true or false regardless of whether we have
+	 * PCID.
+	 */
+	return !static_cpu_has(X86_FEATURE_PCID);
+}
+
 /*
  * 6 because 6 should be plenty and struct tlb_state will fit in
  * two cache lines.
@@ -105,6 +122,23 @@ struct tlb_state {
 	u16 next_asid;
 
 	/*
+	 * We can be in one of several states:
+	 *
+	 *  - Actively using an mm.  Our CPU's bit will be set in
+	 *    mm_cpumask(loaded_mm) and is_lazy == false;
+	 *
+	 *  - Not using a real mm.  loaded_mm == &init_mm.  Our CPU's bit
+	 *    will not be set in mm_cpumask(&init_mm) and is_lazy == false.
+	 *
+	 *  - Lazily using a real mm.  loaded_mm != &init_mm, our bit
+	 *    is set in mm_cpumask(loaded_mm), but is_lazy == true.
+	 *    We're heuristically guessing that the CR3 load we
+	 *    skipped more than makes up for the overhead added by
+	 *    lazy mode.
+	 */
+	bool is_lazy;
+
+	/*
 	 * Access to this CR4 shadow and to H/W CR4 is protected by
 	 * disabling interrupts when modifying either one.
 	 */
diff --git a/arch/x86/include/asm/trace/exceptions.h b/arch/x86/include/asm/trace/exceptions.h
index 5665bf205b8d..69615e387973 100644
--- a/arch/x86/include/asm/trace/exceptions.h
+++ b/arch/x86/include/asm/trace/exceptions.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM exceptions
 
diff --git a/arch/x86/include/asm/trace/fpu.h b/arch/x86/include/asm/trace/fpu.h
index 342e59789fcd..069c04be1507 100644
--- a/arch/x86/include/asm/trace/fpu.h
+++ b/arch/x86/include/asm/trace/fpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM x86_fpu
 
@@ -12,35 +13,27 @@ DECLARE_EVENT_CLASS(x86_fpu,
 
 	TP_STRUCT__entry(
 		__field(struct fpu *, fpu)
-		__field(bool, fpregs_active)
-		__field(bool, fpstate_active)
+		__field(bool, initialized)
 		__field(u64, xfeatures)
 		__field(u64, xcomp_bv)
 		),
 
 	TP_fast_assign(
 		__entry->fpu		= fpu;
-		__entry->fpregs_active	= fpu->fpregs_active;
-		__entry->fpstate_active	= fpu->fpstate_active;
+		__entry->initialized	= fpu->initialized;
 		if (boot_cpu_has(X86_FEATURE_OSXSAVE)) {
 			__entry->xfeatures = fpu->state.xsave.header.xfeatures;
 			__entry->xcomp_bv  = fpu->state.xsave.header.xcomp_bv;
 		}
 	),
-	TP_printk("x86/fpu: %p fpregs_active: %d fpstate_active: %d xfeatures: %llx xcomp_bv: %llx",
+	TP_printk("x86/fpu: %p initialized: %d xfeatures: %llx xcomp_bv: %llx",
 			__entry->fpu,
-			__entry->fpregs_active,
-			__entry->fpstate_active,
+			__entry->initialized,
 			__entry->xfeatures,
 			__entry->xcomp_bv
 	)
 );
 
-DEFINE_EVENT(x86_fpu, x86_fpu_state,
-	TP_PROTO(struct fpu *fpu),
-	TP_ARGS(fpu)
-);
-
 DEFINE_EVENT(x86_fpu, x86_fpu_before_save,
 	TP_PROTO(struct fpu *fpu),
 	TP_ARGS(fpu)
@@ -76,11 +69,6 @@ DEFINE_EVENT(x86_fpu, x86_fpu_activate_state,
 	TP_ARGS(fpu)
 );
 
-DEFINE_EVENT(x86_fpu, x86_fpu_deactivate_state,
-	TP_PROTO(struct fpu *fpu),
-	TP_ARGS(fpu)
-);
-
 DEFINE_EVENT(x86_fpu, x86_fpu_init_state,
 	TP_PROTO(struct fpu *fpu),
 	TP_ARGS(fpu)
diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h
index 1599d394c8c1..84b9ec0c1bc0 100644
--- a/arch/x86/include/asm/trace/irq_vectors.h
+++ b/arch/x86/include/asm/trace/irq_vectors.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM irq_vectors
 
@@ -137,6 +138,254 @@ DEFINE_IRQ_VECTOR_EVENT(deferred_error_apic);
 DEFINE_IRQ_VECTOR_EVENT(thermal_apic);
 #endif
 
+TRACE_EVENT(vector_config,
+
+	TP_PROTO(unsigned int irq, unsigned int vector,
+		 unsigned int cpu, unsigned int apicdest),
+
+	TP_ARGS(irq, vector, cpu, apicdest),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	unsigned int,	vector		)
+		__field(	unsigned int,	cpu		)
+		__field(	unsigned int,	apicdest	)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->vector		= vector;
+		__entry->cpu		= cpu;
+		__entry->apicdest	= apicdest;
+	),
+
+	TP_printk("irq=%u vector=%u cpu=%u apicdest=0x%08x",
+		  __entry->irq, __entry->vector, __entry->cpu,
+		  __entry->apicdest)
+);
+
+DECLARE_EVENT_CLASS(vector_mod,
+
+	TP_PROTO(unsigned int irq, unsigned int vector,
+		 unsigned int cpu, unsigned int prev_vector,
+		 unsigned int prev_cpu),
+
+	TP_ARGS(irq, vector, cpu, prev_vector, prev_cpu),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	unsigned int,	vector		)
+		__field(	unsigned int,	cpu		)
+		__field(	unsigned int,	prev_vector	)
+		__field(	unsigned int,	prev_cpu	)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->vector		= vector;
+		__entry->cpu		= cpu;
+		__entry->prev_vector	= prev_vector;
+		__entry->prev_cpu	= prev_cpu;
+
+	),
+
+	TP_printk("irq=%u vector=%u cpu=%u prev_vector=%u prev_cpu=%u",
+		  __entry->irq, __entry->vector, __entry->cpu,
+		  __entry->prev_vector, __entry->prev_cpu)
+);
+
+#define DEFINE_IRQ_VECTOR_MOD_EVENT(name)				\
+DEFINE_EVENT_FN(vector_mod, name,					\
+	TP_PROTO(unsigned int irq, unsigned int vector,			\
+		 unsigned int cpu, unsigned int prev_vector,		\
+		 unsigned int prev_cpu),				\
+	TP_ARGS(irq, vector, cpu, prev_vector, prev_cpu), NULL, NULL);	\
+
+DEFINE_IRQ_VECTOR_MOD_EVENT(vector_update);
+DEFINE_IRQ_VECTOR_MOD_EVENT(vector_clear);
+
+DECLARE_EVENT_CLASS(vector_reserve,
+
+	TP_PROTO(unsigned int irq, int ret),
+
+	TP_ARGS(irq, ret),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq	)
+		__field(	int,		ret	)
+	),
+
+	TP_fast_assign(
+		__entry->irq = irq;
+		__entry->ret = ret;
+	),
+
+	TP_printk("irq=%u ret=%d", __entry->irq, __entry->ret)
+);
+
+#define DEFINE_IRQ_VECTOR_RESERVE_EVENT(name)	\
+DEFINE_EVENT_FN(vector_reserve, name,	\
+	TP_PROTO(unsigned int irq, int ret),	\
+	TP_ARGS(irq, ret), NULL, NULL);		\
+
+DEFINE_IRQ_VECTOR_RESERVE_EVENT(vector_reserve_managed);
+DEFINE_IRQ_VECTOR_RESERVE_EVENT(vector_reserve);
+
+TRACE_EVENT(vector_alloc,
+
+	TP_PROTO(unsigned int irq, unsigned int vector, bool reserved,
+		 int ret),
+
+	TP_ARGS(irq, vector, ret, reserved),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	unsigned int,	vector		)
+		__field(	bool,		reserved	)
+		__field(	int,		ret		)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->vector		= ret < 0 ? 0 : vector;
+		__entry->reserved	= reserved;
+		__entry->ret		= ret > 0 ? 0 : ret;
+	),
+
+	TP_printk("irq=%u vector=%u reserved=%d ret=%d",
+		  __entry->irq, __entry->vector,
+		  __entry->reserved, __entry->ret)
+);
+
+TRACE_EVENT(vector_alloc_managed,
+
+	TP_PROTO(unsigned int irq, unsigned int vector,
+		 int ret),
+
+	TP_ARGS(irq, vector, ret),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	unsigned int,	vector		)
+		__field(	int,		ret		)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->vector		= ret < 0 ? 0 : vector;
+		__entry->ret		= ret > 0 ? 0 : ret;
+	),
+
+	TP_printk("irq=%u vector=%u ret=%d",
+		  __entry->irq, __entry->vector, __entry->ret)
+);
+
+DECLARE_EVENT_CLASS(vector_activate,
+
+	TP_PROTO(unsigned int irq, bool is_managed, bool can_reserve,
+		 bool early),
+
+	TP_ARGS(irq, is_managed, can_reserve, early),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	bool,		is_managed	)
+		__field(	bool,		can_reserve	)
+		__field(	bool,		early		)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->is_managed	= is_managed;
+		__entry->can_reserve	= can_reserve;
+		__entry->early		= early;
+	),
+
+	TP_printk("irq=%u is_managed=%d can_reserve=%d early=%d",
+		  __entry->irq, __entry->is_managed, __entry->can_reserve,
+		  __entry->early)
+);
+
+#define DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(name)				\
+DEFINE_EVENT_FN(vector_activate, name,					\
+	TP_PROTO(unsigned int irq, bool is_managed,			\
+		 bool can_reserve, bool early),				\
+	TP_ARGS(irq, is_managed, can_reserve, early), NULL, NULL);	\
+
+DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(vector_activate);
+DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(vector_deactivate);
+
+TRACE_EVENT(vector_teardown,
+
+	TP_PROTO(unsigned int irq, bool is_managed, bool has_reserved),
+
+	TP_ARGS(irq, is_managed, has_reserved),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	bool,		is_managed	)
+		__field(	bool,		has_reserved	)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->is_managed	= is_managed;
+		__entry->has_reserved	= has_reserved;
+	),
+
+	TP_printk("irq=%u is_managed=%d has_reserved=%d",
+		  __entry->irq, __entry->is_managed, __entry->has_reserved)
+);
+
+TRACE_EVENT(vector_setup,
+
+	TP_PROTO(unsigned int irq, bool is_legacy, int ret),
+
+	TP_ARGS(irq, is_legacy, ret),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	bool,		is_legacy	)
+		__field(	int,		ret		)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->is_legacy	= is_legacy;
+		__entry->ret		= ret;
+	),
+
+	TP_printk("irq=%u is_legacy=%d ret=%d",
+		  __entry->irq, __entry->is_legacy, __entry->ret)
+);
+
+TRACE_EVENT(vector_free_moved,
+
+	TP_PROTO(unsigned int irq, unsigned int cpu, unsigned int vector,
+		 bool is_managed),
+
+	TP_ARGS(irq, cpu, vector, is_managed),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	irq		)
+		__field(	unsigned int,	cpu		)
+		__field(	unsigned int,	vector		)
+		__field(	bool,		is_managed	)
+	),
+
+	TP_fast_assign(
+		__entry->irq		= irq;
+		__entry->cpu		= cpu;
+		__entry->vector		= vector;
+		__entry->is_managed	= is_managed;
+	),
+
+	TP_printk("irq=%u cpu=%u vector=%u is_managed=%d",
+		  __entry->irq, __entry->cpu, __entry->vector,
+		  __entry->is_managed)
+);
+
+
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 #undef TRACE_INCLUDE_PATH
diff --git a/arch/x86/include/asm/trace/mpx.h b/arch/x86/include/asm/trace/mpx.h
index 0f492fc50bce..7bd92db09e8d 100644
--- a/arch/x86/include/asm/trace/mpx.h
+++ b/arch/x86/include/asm/trace/mpx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mpx
 
diff --git a/arch/x86/include/asm/trace_clock.h b/arch/x86/include/asm/trace_clock.h
index beab86cc282d..7061a5650969 100644
--- a/arch/x86/include/asm/trace_clock.h
+++ b/arch/x86/include/asm/trace_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TRACE_CLOCK_H
 #define _ASM_X86_TRACE_CLOCK_H
 
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 5545f6459bf5..1fadd310ff68 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TRAPS_H
 #define _ASM_X86_TRAPS_H
 
@@ -37,9 +38,9 @@ asmlinkage void simd_coprocessor_error(void);
 
 #if defined(CONFIG_X86_64) && defined(CONFIG_XEN_PV)
 asmlinkage void xen_divide_error(void);
+asmlinkage void xen_xennmi(void);
 asmlinkage void xen_xendebug(void);
 asmlinkage void xen_xenint3(void);
-asmlinkage void xen_nmi(void);
 asmlinkage void xen_overflow(void);
 asmlinkage void xen_bounds(void);
 asmlinkage void xen_invalid_op(void);
@@ -144,4 +145,22 @@ enum {
 	X86_TRAP_IRET = 32,	/* 32, IRET Exception */
 };
 
+/*
+ * Page fault error code bits:
+ *
+ *   bit 0 ==	 0: no page found	1: protection fault
+ *   bit 1 ==	 0: read access		1: write access
+ *   bit 2 ==	 0: kernel-mode access	1: user-mode access
+ *   bit 3 ==				1: use of reserved bit detected
+ *   bit 4 ==				1: fault was an instruction fetch
+ *   bit 5 ==				1: protection keys block access
+ */
+enum x86_pf_error_code {
+	X86_PF_PROT	=		1 << 0,
+	X86_PF_WRITE	=		1 << 1,
+	X86_PF_USER	=		1 << 2,
+	X86_PF_RSVD	=		1 << 3,
+	X86_PF_INSTR	=		1 << 4,
+	X86_PF_PK	=		1 << 5,
+};
 #endif /* _ASM_X86_TRAPS_H */
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index f5e6f1c417df..cf5d53c3f9ea 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * x86 TSC related functions
  */
@@ -31,15 +32,22 @@ static inline cycles_t get_cycles(void)
 
 extern struct system_counterval_t convert_art_to_tsc(u64 art);
 
+extern void tsc_early_delay_calibrate(void);
 extern void tsc_init(void);
 extern void mark_tsc_unstable(char *reason);
 extern int unsynchronized_tsc(void);
 extern int check_tsc_unstable(void);
+extern void mark_tsc_async_resets(char *reason);
 extern unsigned long native_calibrate_cpu(void);
 extern unsigned long native_calibrate_tsc(void);
 extern unsigned long long native_sched_clock_from_tsc(u64 tsc);
 
 extern int tsc_clocksource_reliable;
+#ifdef CONFIG_X86_TSC
+extern bool tsc_async_resets;
+#else
+# define tsc_async_resets	false
+#endif
 
 /*
  * Boot-time check whether the TSCs are synchronized across
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 184eb9894dae..574dff4d2913 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UACCESS_H
 #define _ASM_X86_UACCESS_H
 /*
@@ -166,11 +167,11 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL))
 ({									\
 	int __ret_gu;							\
 	register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX);		\
-	register void *__sp asm(_ASM_SP);				\
 	__chk_user_ptr(ptr);						\
 	might_fault();							\
 	asm volatile("call __get_user_%P4"				\
-		     : "=a" (__ret_gu), "=r" (__val_gu), "+r" (__sp)	\
+		     : "=a" (__ret_gu), "=r" (__val_gu),		\
+			ASM_CALL_CONSTRAINT				\
 		     : "0" (ptr), "i" (sizeof(*(ptr))));		\
 	(x) = (__force __typeof__(*(ptr))) __val_gu;			\
 	__builtin_expect(__ret_gu, 0);					\
@@ -337,7 +338,7 @@ do {									\
 		     _ASM_EXTABLE(1b, 4b)				\
 		     _ASM_EXTABLE(2b, 4b)				\
 		     : "=r" (retval), "=&A"(x)				\
-		     : "m" (__m(__ptr)), "m" __m(((u32 *)(__ptr)) + 1),	\
+		     : "m" (__m(__ptr)), "m" __m(((u32 __user *)(__ptr)) + 1),	\
 		       "i" (errret), "0" (retval));			\
 })
 
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index aeda9bb8af50..72950401b223 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UACCESS_32_H
 #define _ASM_X86_UACCESS_32_H
 
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index b16f6a1d8b26..f07ef3c575db 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UACCESS_64_H
 #define _ASM_X86_UACCESS_64_H
 
diff --git a/arch/x86/include/asm/umip.h b/arch/x86/include/asm/umip.h
new file mode 100644
index 000000000000..db43f2a0d92c
--- /dev/null
+++ b/arch/x86/include/asm/umip.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_X86_UMIP_H
+#define _ASM_X86_UMIP_H
+
+#include <linux/types.h>
+#include <asm/ptrace.h>
+
+#ifdef CONFIG_X86_INTEL_UMIP
+bool fixup_umip_exception(struct pt_regs *regs);
+#else
+static inline bool fixup_umip_exception(struct pt_regs *regs) { return false; }
+#endif  /* CONFIG_X86_INTEL_UMIP */
+#endif  /* _ASM_X86_UMIP_H */
diff --git a/arch/x86/include/asm/unaligned.h b/arch/x86/include/asm/unaligned.h
index a7bd416b4763..9c754a7447aa 100644
--- a/arch/x86/include/asm/unaligned.h
+++ b/arch/x86/include/asm/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UNALIGNED_H
 #define _ASM_X86_UNALIGNED_H
 
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 1ba1536f627e..51c4eee00732 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UNISTD_H
 #define _ASM_X86_UNISTD_H 1
 
diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h
index e9f793e2df7a..e9cc6fe1fc6f 100644
--- a/arch/x86/include/asm/unwind.h
+++ b/arch/x86/include/asm/unwind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UNWIND_H
 #define _ASM_X86_UNWIND_H
 
@@ -12,11 +13,11 @@ struct unwind_state {
 	struct task_struct *task;
 	int graph_idx;
 	bool error;
-#if defined(CONFIG_ORC_UNWINDER)
+#if defined(CONFIG_UNWINDER_ORC)
 	bool signal, full_regs;
 	unsigned long sp, bp, ip;
 	struct pt_regs *regs;
-#elif defined(CONFIG_FRAME_POINTER_UNWINDER)
+#elif defined(CONFIG_UNWINDER_FRAME_POINTER)
 	bool got_irq;
 	unsigned long *bp, *orig_sp, ip;
 	struct pt_regs *regs;
@@ -50,7 +51,7 @@ void unwind_start(struct unwind_state *state, struct task_struct *task,
 	__unwind_start(state, task, regs, first_frame);
 }
 
-#if defined(CONFIG_ORC_UNWINDER) || defined(CONFIG_FRAME_POINTER_UNWINDER)
+#if defined(CONFIG_UNWINDER_ORC) || defined(CONFIG_UNWINDER_FRAME_POINTER)
 static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
 {
 	if (unwind_done(state))
@@ -65,7 +66,7 @@ static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state)
 }
 #endif
 
-#ifdef CONFIG_ORC_UNWINDER
+#ifdef CONFIG_UNWINDER_ORC
 void unwind_init(void);
 void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
 			void *orc, size_t orc_size);
diff --git a/arch/x86/include/asm/user.h b/arch/x86/include/asm/user.h
index 59a54e869f15..413c91746b27 100644
--- a/arch/x86/include/asm/user.h
+++ b/arch/x86/include/asm/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_USER_H
 #define _ASM_X86_USER_H
 
diff --git a/arch/x86/include/asm/user32.h b/arch/x86/include/asm/user32.h
index 14cbb73ebcba..fa577312f63a 100644
--- a/arch/x86/include/asm/user32.h
+++ b/arch/x86/include/asm/user32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_USER32_H
 #define _ASM_X86_USER32_H
 
diff --git a/arch/x86/include/asm/user_32.h b/arch/x86/include/asm/user_32.h
index bebfd8644016..d72c3d66e94f 100644
--- a/arch/x86/include/asm/user_32.h
+++ b/arch/x86/include/asm/user_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_USER_32_H
 #define _ASM_X86_USER_32_H
 
diff --git a/arch/x86/include/asm/user_64.h b/arch/x86/include/asm/user_64.h
index faf2cd3e0d76..db909923611c 100644
--- a/arch/x86/include/asm/user_64.h
+++ b/arch/x86/include/asm/user_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_USER_64_H
 #define _ASM_X86_USER_64_H
 
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index b5a32231abd8..a80c0673798f 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_UV_UV_H
 #define _ASM_X86_UV_UV_H
 
diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h
index 9cffb44a3cf5..036e26d63d9a 100644
--- a/arch/x86/include/asm/uv/uv_hub.h
+++ b/arch/x86/include/asm/uv/uv_hub.h
@@ -776,23 +776,36 @@ static inline int uv_num_possible_blades(void)
 extern void uv_nmi_setup(void);
 extern void uv_nmi_setup_hubless(void);
 
+/* BIOS/Kernel flags exchange MMR */
+#define UVH_BIOS_KERNEL_MMR		UVH_SCRATCH5
+#define UVH_BIOS_KERNEL_MMR_ALIAS	UVH_SCRATCH5_ALIAS
+#define UVH_BIOS_KERNEL_MMR_ALIAS_2	UVH_SCRATCH5_ALIAS_2
+
+/* TSC sync valid, set by BIOS */
+#define UVH_TSC_SYNC_MMR	UVH_BIOS_KERNEL_MMR
+#define UVH_TSC_SYNC_SHIFT	10
+#define UVH_TSC_SYNC_SHIFT_UV2K	16	/* UV2/3k have different bits */
+#define UVH_TSC_SYNC_MASK	3	/* 0011 */
+#define UVH_TSC_SYNC_VALID	3	/* 0011 */
+#define UVH_TSC_SYNC_INVALID	2	/* 0010 */
+
 /* BMC sets a bit this MMR non-zero before sending an NMI */
-#define UVH_NMI_MMR		UVH_SCRATCH5
-#define UVH_NMI_MMR_CLEAR	UVH_SCRATCH5_ALIAS
+#define UVH_NMI_MMR		UVH_BIOS_KERNEL_MMR
+#define UVH_NMI_MMR_CLEAR	UVH_BIOS_KERNEL_MMR_ALIAS
 #define UVH_NMI_MMR_SHIFT	63
-#define	UVH_NMI_MMR_TYPE	"SCRATCH5"
+#define UVH_NMI_MMR_TYPE	"SCRATCH5"
 
 /* Newer SMM NMI handler, not present in all systems */
 #define UVH_NMI_MMRX		UVH_EVENT_OCCURRED0
 #define UVH_NMI_MMRX_CLEAR	UVH_EVENT_OCCURRED0_ALIAS
 #define UVH_NMI_MMRX_SHIFT	UVH_EVENT_OCCURRED0_EXTIO_INT0_SHFT
-#define	UVH_NMI_MMRX_TYPE	"EXTIO_INT0"
+#define UVH_NMI_MMRX_TYPE	"EXTIO_INT0"
 
 /* Non-zero indicates newer SMM NMI handler present */
 #define UVH_NMI_MMRX_SUPPORTED	UVH_EXTIO_INT0_BROADCAST
 
 /* Indicates to BIOS that we want to use the newer SMM NMI handler */
-#define UVH_NMI_MMRX_REQ	UVH_SCRATCH5_ALIAS_2
+#define UVH_NMI_MMRX_REQ	UVH_BIOS_KERNEL_MMR_ALIAS_2
 #define UVH_NMI_MMRX_REQ_SHIFT	62
 
 struct uv_hub_nmi_s {
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index bccdf4938ddf..27566e57e87d 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_VDSO_H
 #define _ASM_X86_VDSO_H
 
diff --git a/arch/x86/include/asm/vga.h b/arch/x86/include/asm/vga.h
index 9f42beefc67a..46f9b2deab4d 100644
--- a/arch/x86/include/asm/vga.h
+++ b/arch/x86/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index 022e59714562..fb856c9f0449 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_VGTOD_H
 #define _ASM_X86_VGTOD_H
 
@@ -48,7 +49,7 @@ static inline unsigned gtod_read_begin(const struct vsyscall_gtod_data *s)
 	unsigned ret;
 
 repeat:
-	ret = ACCESS_ONCE(s->seq);
+	ret = READ_ONCE(s->seq);
 	if (unlikely(ret & 1)) {
 		cpu_relax();
 		goto repeat;
diff --git a/arch/x86/include/asm/vm86.h b/arch/x86/include/asm/vm86.h
index 1e491f3af317..26efbec94448 100644
--- a/arch/x86/include/asm/vm86.h
+++ b/arch/x86/include/asm/vm86.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_VM86_H
 #define _ASM_X86_VM86_H
 
diff --git a/arch/x86/include/asm/vsyscall.h b/arch/x86/include/asm/vsyscall.h
index 6ba66ee79710..d9a7c659009c 100644
--- a/arch/x86/include/asm/vsyscall.h
+++ b/arch/x86/include/asm/vsyscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_VSYSCALL_H
 #define _ASM_X86_VSYSCALL_H
 
diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
index 5b238981542a..06006b0351f3 100644
--- a/arch/x86/include/asm/word-at-a-time.h
+++ b/arch/x86/include/asm/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_WORD_AT_A_TIME_H
 #define _ASM_WORD_AT_A_TIME_H
 
diff --git a/arch/x86/include/asm/x2apic.h b/arch/x86/include/asm/x2apic.h
deleted file mode 100644
index f90f0a587c66..000000000000
--- a/arch/x86/include/asm/x2apic.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Common bits for X2APIC cluster/physical modes.
- */
-
-#ifndef _ASM_X86_X2APIC_H
-#define _ASM_X86_X2APIC_H
-
-#include <asm/apic.h>
-#include <asm/ipi.h>
-#include <linux/cpumask.h>
-
-static int x2apic_apic_id_valid(int apicid)
-{
-	return 1;
-}
-
-static int x2apic_apic_id_registered(void)
-{
-	return 1;
-}
-
-static void
-__x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
-{
-	unsigned long cfg = __prepare_ICR(0, vector, dest);
-	native_x2apic_icr_write(cfg, apicid);
-}
-
-static unsigned int x2apic_get_apic_id(unsigned long id)
-{
-	return id;
-}
-
-static unsigned long x2apic_set_apic_id(unsigned int id)
-{
-	return id;
-}
-
-static int x2apic_phys_pkg_id(int initial_apicid, int index_msb)
-{
-	return initial_apicid >> index_msb;
-}
-
-static void x2apic_send_IPI_self(int vector)
-{
-	apic_write(APIC_SELF_IPI, vector);
-}
-
-#endif /* _ASM_X86_X2APIC_H */
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 7ba7e90a9ad6..aa4747569e23 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_PLATFORM_H
 #define _ASM_X86_PLATFORM_H
 
@@ -50,11 +51,13 @@ struct x86_init_resources {
  *				are set up.
  * @intr_init:			interrupt init code
  * @trap_init:			platform specific trap setup
+ * @intr_mode_init:		interrupt delivery mode setup
  */
 struct x86_init_irqs {
 	void (*pre_vector_init)(void);
 	void (*intr_init)(void);
 	void (*trap_init)(void);
+	void (*intr_mode_init)(void);
 };
 
 /**
@@ -114,6 +117,20 @@ struct x86_init_pci {
 };
 
 /**
+ * struct x86_hyper_init - x86 hypervisor init functions
+ * @init_platform:		platform setup
+ * @guest_late_init:		guest late init
+ * @x2apic_available:		X2APIC detection
+ * @init_mem_mapping:		setup early mappings during init_mem_mapping()
+ */
+struct x86_hyper_init {
+	void (*init_platform)(void);
+	void (*guest_late_init)(void);
+	bool (*x2apic_available)(void);
+	void (*init_mem_mapping)(void);
+};
+
+/**
  * struct x86_init_ops - functions for platform specific setup
  *
  */
@@ -126,6 +143,7 @@ struct x86_init_ops {
 	struct x86_init_timers		timers;
 	struct x86_init_iommu		iommu;
 	struct x86_init_pci		pci;
+	struct x86_hyper_init		hyper;
 };
 
 /**
@@ -194,11 +212,21 @@ enum x86_legacy_i8042_state {
 struct x86_legacy_features {
 	enum x86_legacy_i8042_state i8042;
 	int rtc;
+	int no_vga;
 	int reserve_bios_regions;
 	struct x86_legacy_devices devices;
 };
 
 /**
+ * struct x86_hyper_runtime - x86 hypervisor specific runtime callbacks
+ *
+ * @pin_vcpu:		pin current vcpu to specified physical cpu (run rarely)
+ */
+struct x86_hyper_runtime {
+	void (*pin_vcpu)(int cpu);
+};
+
+/**
  * struct x86_platform_ops - platform specific runtime functions
  * @calibrate_cpu:		calibrate CPU
  * @calibrate_tsc:		calibrate TSC, if different from CPU
@@ -217,6 +245,7 @@ struct x86_legacy_features {
  * 				possible in x86_early_init_platform_quirks() by
  * 				only using the current x86_hardware_subarch
  * 				semantics.
+ * @hyper:			x86 hypervisor specific runtime callbacks
  */
 struct x86_platform_ops {
 	unsigned long (*calibrate_cpu)(void);
@@ -232,6 +261,7 @@ struct x86_platform_ops {
 	void (*apic_post_init)(void);
 	struct x86_legacy_features legacy;
 	void (*set_legacy_features)(void);
+	struct x86_hyper_runtime hyper;
 };
 
 struct pci_dev;
diff --git a/arch/x86/include/asm/xen/events.h b/arch/x86/include/asm/xen/events.h
index e6911caf5bbf..d383140e1dc8 100644
--- a/arch/x86/include/asm/xen/events.h
+++ b/arch/x86/include/asm/xen/events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_XEN_EVENTS_H
 #define _ASM_X86_XEN_EVENTS_H
 
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index 9606688caa4b..7cb282e9e587 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -113,10 +113,9 @@ extern struct { char _entry[32]; } hypercall_page[];
 	register unsigned long __arg2 asm(__HYPERCALL_ARG2REG) = __arg2; \
 	register unsigned long __arg3 asm(__HYPERCALL_ARG3REG) = __arg3; \
 	register unsigned long __arg4 asm(__HYPERCALL_ARG4REG) = __arg4; \
-	register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5; \
-	register void *__sp asm(_ASM_SP);
+	register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5;
 
-#define __HYPERCALL_0PARAM	"=r" (__res), "+r" (__sp)
+#define __HYPERCALL_0PARAM	"=r" (__res), ASM_CALL_CONSTRAINT
 #define __HYPERCALL_1PARAM	__HYPERCALL_0PARAM, "+r" (__arg1)
 #define __HYPERCALL_2PARAM	__HYPERCALL_1PARAM, "+r" (__arg2)
 #define __HYPERCALL_3PARAM	__HYPERCALL_2PARAM, "+r" (__arg3)
@@ -552,13 +551,13 @@ static inline void
 MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
 			struct desc_struct desc)
 {
-	u32 *p = (u32 *) &desc;
-
 	mcl->op = __HYPERVISOR_update_descriptor;
 	if (sizeof(maddr) == sizeof(long)) {
 		mcl->args[0] = maddr;
 		mcl->args[1] = *(unsigned long *)&desc;
 	} else {
+		u32 *p = (u32 *)&desc;
+
 		mcl->args[0] = maddr;
 		mcl->args[1] = maddr >> 32;
 		mcl->args[2] = *p++;
diff --git a/arch/x86/include/asm/xen/interface_32.h b/arch/x86/include/asm/xen/interface_32.h
index 8413688b2571..dc40578abded 100644
--- a/arch/x86/include/asm/xen/interface_32.h
+++ b/arch/x86/include/asm/xen/interface_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * arch-x86_32.h
  *
diff --git a/arch/x86/include/asm/xen/interface_64.h b/arch/x86/include/asm/xen/interface_64.h
index 839a4811cf98..c599ec269a25 100644
--- a/arch/x86/include/asm/xen/interface_64.h
+++ b/arch/x86/include/asm/xen/interface_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_XEN_INTERFACE_64_H
 #define _ASM_X86_XEN_INTERFACE_64_H
 
diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h
index f02f025ff988..116777e7f387 100644
--- a/arch/x86/include/asm/xen/page-coherent.h
+++ b/arch/x86/include/asm/xen/page-coherent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_XEN_PAGE_COHERENT_H
 #define _ASM_X86_XEN_PAGE_COHERENT_H
 
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index 07b6531813c4..c6b84245e5ab 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_XEN_PAGE_H
 #define _ASM_X86_XEN_PAGE_H
 
diff --git a/arch/x86/include/asm/xen/pci.h b/arch/x86/include/asm/xen/pci.h
index f320ee32d5a1..3506d8c598c1 100644
--- a/arch/x86/include/asm/xen/pci.h
+++ b/arch/x86/include/asm/xen/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_XEN_PCI_H
 #define _ASM_X86_XEN_PCI_H
 
diff --git a/arch/x86/include/asm/xen/swiotlb-xen.h b/arch/x86/include/asm/xen/swiotlb-xen.h
index ee52fcac6f72..6b56d0d45d15 100644
--- a/arch/x86/include/asm/xen/swiotlb-xen.h
+++ b/arch/x86/include/asm/xen/swiotlb-xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SWIOTLB_XEN_H
 #define _ASM_X86_SWIOTLB_XEN_H
 
diff --git a/arch/x86/include/asm/xen/trace_types.h b/arch/x86/include/asm/xen/trace_types.h
index 21e1874c0a0b..2aad0abd68e2 100644
--- a/arch/x86/include/asm/xen/trace_types.h
+++ b/arch/x86/include/asm/xen/trace_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_XEN_TRACE_TYPES_H
 #define _ASM_XEN_TRACE_TYPES_H
 
diff --git a/arch/x86/include/asm/xor_64.h b/arch/x86/include/asm/xor_64.h
index 546f1e3b87cc..0307e4ec5044 100644
--- a/arch/x86/include/asm/xor_64.h
+++ b/arch/x86/include/asm/xor_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_XOR_64_H
 #define _ASM_X86_XOR_64_H
 
diff --git a/arch/x86/include/uapi/asm/a.out.h b/arch/x86/include/uapi/asm/a.out.h
index 4684f97a5bbd..094c49d8ea8e 100644
--- a/arch/x86/include/uapi/asm/a.out.h
+++ b/arch/x86/include/uapi/asm/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_A_OUT_H
 #define _ASM_X86_A_OUT_H
 
diff --git a/arch/x86/include/uapi/asm/auxvec.h b/arch/x86/include/uapi/asm/auxvec.h
index 77203ac352de..580e3c567046 100644
--- a/arch/x86/include/uapi/asm/auxvec.h
+++ b/arch/x86/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_AUXVEC_H
 #define _ASM_X86_AUXVEC_H
 /*
diff --git a/arch/x86/include/uapi/asm/bitsperlong.h b/arch/x86/include/uapi/asm/bitsperlong.h
index 217909b4d6f5..5d72c8458838 100644
--- a/arch/x86/include/uapi/asm/bitsperlong.h
+++ b/arch/x86/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_X86_BITSPERLONG_H
 #define __ASM_X86_BITSPERLONG_H
 
diff --git a/arch/x86/include/uapi/asm/boot.h b/arch/x86/include/uapi/asm/boot.h
index 94292c4c8122..88ffc5aee087 100644
--- a/arch/x86/include/uapi/asm/boot.h
+++ b/arch/x86/include/uapi/asm/boot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_BOOT_H
 #define _UAPI_ASM_X86_BOOT_H
 
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index 66b8f93333d1..afdd5ae0fcc4 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_BOOTPARAM_H
 #define _ASM_X86_BOOTPARAM_H
 
diff --git a/arch/x86/include/uapi/asm/byteorder.h b/arch/x86/include/uapi/asm/byteorder.h
index b13a7a88f3eb..484e3cfd7ef2 100644
--- a/arch/x86/include/uapi/asm/byteorder.h
+++ b/arch/x86/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_BYTEORDER_H
 #define _ASM_X86_BYTEORDER_H
 
diff --git a/arch/x86/include/uapi/asm/debugreg.h b/arch/x86/include/uapi/asm/debugreg.h
index 3c0874dd9861..d95d080b30e3 100644
--- a/arch/x86/include/uapi/asm/debugreg.h
+++ b/arch/x86/include/uapi/asm/debugreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_DEBUGREG_H
 #define _UAPI_ASM_X86_DEBUGREG_H
 
diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
index 9dafe59cf6e2..2f491efe3a12 100644
--- a/arch/x86/include/uapi/asm/e820.h
+++ b/arch/x86/include/uapi/asm/e820.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_E820_H
 #define _UAPI_ASM_X86_E820_H
 #define E820MAP	0x2d0		/* our map */
diff --git a/arch/x86/include/uapi/asm/hw_breakpoint.h b/arch/x86/include/uapi/asm/hw_breakpoint.h
index 79a9626b5500..6789884c7701 100644
--- a/arch/x86/include/uapi/asm/hw_breakpoint.h
+++ b/arch/x86/include/uapi/asm/hw_breakpoint.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* */
diff --git a/arch/x86/include/uapi/asm/hwcap2.h b/arch/x86/include/uapi/asm/hwcap2.h
index 0bd2be5c7617..6ebaae90e207 100644
--- a/arch/x86/include/uapi/asm/hwcap2.h
+++ b/arch/x86/include/uapi/asm/hwcap2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_HWCAP2_H
 #define _ASM_X86_HWCAP2_H
 
diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index 7032f4d8dff3..1a5bfead93b4 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_HYPERV_H
 #define _ASM_X86_HYPERV_H
 
@@ -153,12 +154,6 @@
 #define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED	(1 << 11)
 
 /*
- * HV_VP_SET available
- */
-#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED	(1 << 11)
-
-
-/*
  * Crash notification flag.
  */
 #define HV_CRASH_CTL_CRASH_NOTIFY (1ULL << 63)
diff --git a/arch/x86/include/uapi/asm/ist.h b/arch/x86/include/uapi/asm/ist.h
index bad9f5ea4070..eac5b207939d 100644
--- a/arch/x86/include/uapi/asm/ist.h
+++ b/arch/x86/include/uapi/asm/ist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Include file for the interface to IST BIOS
  * Copyright 2002 Andy Grover <andrew.grover@intel.com>
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
index c2824d02ba37..f3a960488eae 100644
--- a/arch/x86/include/uapi/asm/kvm.h
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_KVM_H
 #define _ASM_X86_KVM_H
 
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
index a965e5b0d328..09cc06483bed 100644
--- a/arch/x86/include/uapi/asm/kvm_para.h
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_KVM_PARA_H
 #define _UAPI_ASM_X86_KVM_PARA_H
 
@@ -109,5 +110,4 @@ struct kvm_vcpu_pv_apf_data {
 #define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK
 #define KVM_PV_EOI_DISABLED 0x0
 
-
 #endif /* _UAPI_ASM_X86_KVM_PARA_H */
diff --git a/arch/x86/include/uapi/asm/kvm_perf.h b/arch/x86/include/uapi/asm/kvm_perf.h
index 3bb964f88aa1..125cf5cdf6c5 100644
--- a/arch/x86/include/uapi/asm/kvm_perf.h
+++ b/arch/x86/include/uapi/asm/kvm_perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_KVM_PERF_H
 #define _ASM_X86_KVM_PERF_H
 
diff --git a/arch/x86/include/uapi/asm/ldt.h b/arch/x86/include/uapi/asm/ldt.h
index 6e1aaf73852a..d62ac5db093b 100644
--- a/arch/x86/include/uapi/asm/ldt.h
+++ b/arch/x86/include/uapi/asm/ldt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ldt.h
  *
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h
index eb6247a7009b..91723461dc1f 100644
--- a/arch/x86/include/uapi/asm/mce.h
+++ b/arch/x86/include/uapi/asm/mce.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_MCE_H
 #define _UAPI_ASM_X86_MCE_H
 
diff --git a/arch/x86/include/uapi/asm/mman.h b/arch/x86/include/uapi/asm/mman.h
index 3be08f07695c..d4a8d0424bfb 100644
--- a/arch/x86/include/uapi/asm/mman.h
+++ b/arch/x86/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_MMAN_H
 #define _ASM_X86_MMAN_H
 
diff --git a/arch/x86/include/uapi/asm/msr.h b/arch/x86/include/uapi/asm/msr.h
index c41f4fe25483..e7516b402a00 100644
--- a/arch/x86/include/uapi/asm/msr.h
+++ b/arch/x86/include/uapi/asm/msr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_MSR_H
 #define _UAPI_ASM_X86_MSR_H
 
diff --git a/arch/x86/include/uapi/asm/mtrr.h b/arch/x86/include/uapi/asm/mtrr.h
index 7528dcf59691..376563f2bac1 100644
--- a/arch/x86/include/uapi/asm/mtrr.h
+++ b/arch/x86/include/uapi/asm/mtrr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
 /*  Generic MTRR (Memory Type Range Register) ioctls.
 
     Copyright (C) 1997-1999  Richard Gooch
diff --git a/arch/x86/include/uapi/asm/perf_regs.h b/arch/x86/include/uapi/asm/perf_regs.h
index 3f2207bfd17b..f3329cabce5c 100644
--- a/arch/x86/include/uapi/asm/perf_regs.h
+++ b/arch/x86/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_PERF_REGS_H
 #define _ASM_X86_PERF_REGS_H
 
diff --git a/arch/x86/include/uapi/asm/posix_types.h b/arch/x86/include/uapi/asm/posix_types.h
index 85506b383627..c661e95f0134 100644
--- a/arch/x86/include/uapi/asm/posix_types.h
+++ b/arch/x86/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __KERNEL__
 # ifdef __i386__
 #  include <asm/posix_types_32.h>
diff --git a/arch/x86/include/uapi/asm/posix_types_32.h b/arch/x86/include/uapi/asm/posix_types_32.h
index 8e525059e7d8..840659f4b96f 100644
--- a/arch/x86/include/uapi/asm/posix_types_32.h
+++ b/arch/x86/include/uapi/asm/posix_types_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_POSIX_TYPES_32_H
 #define _ASM_X86_POSIX_TYPES_32_H
 
diff --git a/arch/x86/include/uapi/asm/posix_types_64.h b/arch/x86/include/uapi/asm/posix_types_64.h
index cba0c1ead162..515afb8059ce 100644
--- a/arch/x86/include/uapi/asm/posix_types_64.h
+++ b/arch/x86/include/uapi/asm/posix_types_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_POSIX_TYPES_64_H
 #define _ASM_X86_POSIX_TYPES_64_H
 
diff --git a/arch/x86/include/uapi/asm/posix_types_x32.h b/arch/x86/include/uapi/asm/posix_types_x32.h
index 85f9bdafa93c..f60479b07fc8 100644
--- a/arch/x86/include/uapi/asm/posix_types_x32.h
+++ b/arch/x86/include/uapi/asm/posix_types_x32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_POSIX_TYPES_X32_H
 #define _ASM_X86_POSIX_TYPES_X32_H
 
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h
index c45765517092..5a6aac9fa41f 100644
--- a/arch/x86/include/uapi/asm/prctl.h
+++ b/arch/x86/include/uapi/asm/prctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_PRCTL_H
 #define _ASM_X86_PRCTL_H
 
diff --git a/arch/x86/include/uapi/asm/processor-flags.h b/arch/x86/include/uapi/asm/processor-flags.h
index 185f3d10c194..7e1e730396ae 100644
--- a/arch/x86/include/uapi/asm/processor-flags.h
+++ b/arch/x86/include/uapi/asm/processor-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H
 #define _UAPI_ASM_X86_PROCESSOR_FLAGS_H
 /* Various flags defined: can be included from assembler. */
@@ -104,6 +105,8 @@
 #define X86_CR4_OSFXSR		_BITUL(X86_CR4_OSFXSR_BIT)
 #define X86_CR4_OSXMMEXCPT_BIT	10 /* enable unmasked SSE exceptions */
 #define X86_CR4_OSXMMEXCPT	_BITUL(X86_CR4_OSXMMEXCPT_BIT)
+#define X86_CR4_UMIP_BIT	11 /* enable UMIP support */
+#define X86_CR4_UMIP		_BITUL(X86_CR4_UMIP_BIT)
 #define X86_CR4_LA57_BIT	12 /* enable 5-level page tables */
 #define X86_CR4_LA57		_BITUL(X86_CR4_LA57_BIT)
 #define X86_CR4_VMXE_BIT	13 /* enable VMX virtualization */
@@ -151,5 +154,8 @@
 #define CX86_ARR_BASE	0xc4
 #define CX86_RCR_BASE	0xdc
 
+#define CR0_STATE	(X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \
+			 X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \
+			 X86_CR0_PG)
 
 #endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */
diff --git a/arch/x86/include/uapi/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
index 580aee3072e0..16074b9c93bb 100644
--- a/arch/x86/include/uapi/asm/ptrace-abi.h
+++ b/arch/x86/include/uapi/asm/ptrace-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_PTRACE_ABI_H
 #define _ASM_X86_PTRACE_ABI_H
 
diff --git a/arch/x86/include/uapi/asm/ptrace.h b/arch/x86/include/uapi/asm/ptrace.h
index bc16115af39b..85165c0edafc 100644
--- a/arch/x86/include/uapi/asm/ptrace.h
+++ b/arch/x86/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_PTRACE_H
 #define _UAPI_ASM_X86_PTRACE_H
 
diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h
index cc2d6a3aeae7..cabd7476bd6c 100644
--- a/arch/x86/include/uapi/asm/sembuf.h
+++ b/arch/x86/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_SEMBUF_H
 #define _ASM_X86_SEMBUF_H
 
diff --git a/arch/x86/include/uapi/asm/sigcontext.h b/arch/x86/include/uapi/asm/sigcontext.h
index 62d4111c1c54..844d60eb1882 100644
--- a/arch/x86/include/uapi/asm/sigcontext.h
+++ b/arch/x86/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_SIGCONTEXT_H
 #define _UAPI_ASM_X86_SIGCONTEXT_H
 
diff --git a/arch/x86/include/uapi/asm/sigcontext32.h b/arch/x86/include/uapi/asm/sigcontext32.h
index a92b0f0dc09e..6b18e88de8a6 100644
--- a/arch/x86/include/uapi/asm/sigcontext32.h
+++ b/arch/x86/include/uapi/asm/sigcontext32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_SIGCONTEXT32_H
 #define _ASM_X86_SIGCONTEXT32_H
 
diff --git a/arch/x86/include/uapi/asm/siginfo.h b/arch/x86/include/uapi/asm/siginfo.h
index 34c47b3341c0..b3d157957177 100644
--- a/arch/x86/include/uapi/asm/siginfo.h
+++ b/arch/x86/include/uapi/asm/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_SIGINFO_H
 #define _ASM_X86_SIGINFO_H
 
diff --git a/arch/x86/include/uapi/asm/signal.h b/arch/x86/include/uapi/asm/signal.h
index 8264f47cf53e..e5745d593dc7 100644
--- a/arch/x86/include/uapi/asm/signal.h
+++ b/arch/x86/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_SIGNAL_H
 #define _UAPI_ASM_X86_SIGNAL_H
 
diff --git a/arch/x86/include/uapi/asm/stat.h b/arch/x86/include/uapi/asm/stat.h
index bc03eb5d6360..9e3982d95d0f 100644
--- a/arch/x86/include/uapi/asm/stat.h
+++ b/arch/x86/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_STAT_H
 #define _ASM_X86_STAT_H
 
diff --git a/arch/x86/include/uapi/asm/statfs.h b/arch/x86/include/uapi/asm/statfs.h
index 2d0adbf99a8e..13c2464cd2c4 100644
--- a/arch/x86/include/uapi/asm/statfs.h
+++ b/arch/x86/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_STATFS_H
 #define _ASM_X86_STATFS_H
 
diff --git a/arch/x86/include/uapi/asm/svm.h b/arch/x86/include/uapi/asm/svm.h
index 3725e145aa58..a9731f8a480f 100644
--- a/arch/x86/include/uapi/asm/svm.h
+++ b/arch/x86/include/uapi/asm/svm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SVM_H
 #define _UAPI__SVM_H
 
diff --git a/arch/x86/include/uapi/asm/swab.h b/arch/x86/include/uapi/asm/swab.h
index 7f235c7105c1..cd3fd8ddbe9a 100644
--- a/arch/x86/include/uapi/asm/swab.h
+++ b/arch/x86/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_SWAB_H
 #define _ASM_X86_SWAB_H
 
diff --git a/arch/x86/include/uapi/asm/types.h b/arch/x86/include/uapi/asm/types.h
index 8e8c23fef08c..df55e1ddb0c9 100644
--- a/arch/x86/include/uapi/asm/types.h
+++ b/arch/x86/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_TYPES_H
 #define _ASM_X86_TYPES_H
 
diff --git a/arch/x86/include/uapi/asm/ucontext.h b/arch/x86/include/uapi/asm/ucontext.h
index e3d1ec90616e..5657b7a49f03 100644
--- a/arch/x86/include/uapi/asm/ucontext.h
+++ b/arch/x86/include/uapi/asm/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_UCONTEXT_H
 #define _ASM_X86_UCONTEXT_H
 
diff --git a/arch/x86/include/uapi/asm/unistd.h b/arch/x86/include/uapi/asm/unistd.h
index a26df0d75cd0..30d7d04d72d6 100644
--- a/arch/x86/include/uapi/asm/unistd.h
+++ b/arch/x86/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_UNISTD_H
 #define _UAPI_ASM_X86_UNISTD_H
 
diff --git a/arch/x86/include/uapi/asm/vm86.h b/arch/x86/include/uapi/asm/vm86.h
index e0b243e9d859..d2ee4e307ef8 100644
--- a/arch/x86/include/uapi/asm/vm86.h
+++ b/arch/x86/include/uapi/asm/vm86.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_VM86_H
 #define _UAPI_ASM_X86_VM86_H
 
diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h
index 690a2dcf4078..f0b0c90dd398 100644
--- a/arch/x86/include/uapi/asm/vmx.h
+++ b/arch/x86/include/uapi/asm/vmx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * vmx.h: VMX Architecture related definitions
  * Copyright (c) 2004, Intel Corporation.
diff --git a/arch/x86/include/uapi/asm/vsyscall.h b/arch/x86/include/uapi/asm/vsyscall.h
index b97dd6e263d2..75275f547444 100644
--- a/arch/x86/include/uapi/asm/vsyscall.h
+++ b/arch/x86/include/uapi/asm/vsyscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_VSYSCALL_H
 #define _UAPI_ASM_X86_VSYSCALL_H
 
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index fd0a7895b63f..81bb565f4497 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
@@ -24,9 +25,9 @@ endif
 KASAN_SANITIZE_head$(BITS).o				:= n
 KASAN_SANITIZE_dumpstack.o				:= n
 KASAN_SANITIZE_dumpstack_$(BITS).o			:= n
-KASAN_SANITIZE_stacktrace.o := n
+KASAN_SANITIZE_stacktrace.o				:= n
+KASAN_SANITIZE_paravirt.o				:= n
 
-OBJECT_FILES_NON_STANDARD_head_$(BITS).o		:= y
 OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o	:= y
 OBJECT_FILES_NON_STANDARD_ftrace_$(BITS).o		:= y
 OBJECT_FILES_NON_STANDARD_test_nx.o			:= y
@@ -126,10 +127,11 @@ obj-$(CONFIG_EFI)			+= sysfb_efi.o
 obj-$(CONFIG_PERF_EVENTS)		+= perf_regs.o
 obj-$(CONFIG_TRACING)			+= tracepoint.o
 obj-$(CONFIG_SCHED_MC_PRIO)		+= itmt.o
+obj-$(CONFIG_X86_INTEL_UMIP)		+= umip.o
 
-obj-$(CONFIG_ORC_UNWINDER)		+= unwind_orc.o
-obj-$(CONFIG_FRAME_POINTER_UNWINDER)	+= unwind_frame.o
-obj-$(CONFIG_GUESS_UNWINDER)		+= unwind_guess.o
+obj-$(CONFIG_UNWINDER_ORC)		+= unwind_orc.o
+obj-$(CONFIG_UNWINDER_FRAME_POINTER)	+= unwind_frame.o
+obj-$(CONFIG_UNWINDER_GUESS)		+= unwind_guess.o
 
 ###
 # 64 bit specific files
diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 85a9e17e0dbc..f1bb57b0e41e 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD_wakeup_$(BITS).o := y
 
 obj-$(CONFIG_ACPI)		+= boot.o
diff --git a/arch/x86/kernel/acpi/apei.c b/arch/x86/kernel/acpi/apei.c
index ea3046e0b0cf..bb8d300fecbd 100644
--- a/arch/x86/kernel/acpi/apei.c
+++ b/arch/x86/kernel/acpi/apei.c
@@ -52,8 +52,3 @@ void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
 	apei_mce_report_mem_error(sev, mem_err);
 #endif
 }
-
-void arch_apei_flush_tlb_one(unsigned long addr)
-{
-	__flush_tlb_one(addr);
-}
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index f8ae286c1502..ef9e02e614d0 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -961,6 +961,11 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
 		x86_platform.legacy.rtc = 0;
 	}
 
+	if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_VGA) {
+		pr_debug("ACPI: probing for VGA not safe\n");
+		x86_platform.legacy.no_vga = 1;
+	}
+
 #ifdef CONFIG_X86_PM_TIMER
 	/* detect the location of the ACPI PM Timer */
 	if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID) {
@@ -1373,7 +1378,7 @@ static void __init acpi_reduced_hw_init(void)
  * If your system is blacklisted here, but you find that acpi=force
  * works for you, please contact linux-acpi@vger.kernel.org
  */
-static struct dmi_system_id __initdata acpi_dmi_table[] = {
+static const struct dmi_system_id acpi_dmi_table[] __initconst = {
 	/*
 	 * Boxes that need ACPI disabled
 	 */
@@ -1448,7 +1453,7 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 };
 
 /* second table for DMI checks that should run after early-quirks */
-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
+static const struct dmi_system_id acpi_dmi_table_late[] __initconst = {
 	/*
 	 * HP laptops which use a DSDT reporting as HP/SB400/10000,
 	 * which includes some code which overrides all temperature
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index ed014814ea35..7188aea91549 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sleep.c - x86-specific ACPI sleep support.
  *
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index 65c7b606b606..fbb60ca4255c 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Variables and functions used by the code in sleep.c
  */
diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 3344d3382e91..dbaf14d69ebd 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -442,7 +442,6 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
 {
 	const s32 *poff;
 
-	mutex_lock(&text_mutex);
 	for (poff = start; poff < end; poff++) {
 		u8 *ptr = (u8 *)poff + *poff;
 
@@ -452,7 +451,6 @@ static void alternatives_smp_lock(const s32 *start, const s32 *end,
 		if (*ptr == 0x3e)
 			text_poke(ptr, ((unsigned char []){0xf0}), 1);
 	}
-	mutex_unlock(&text_mutex);
 }
 
 static void alternatives_smp_unlock(const s32 *start, const s32 *end,
@@ -460,7 +458,6 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
 {
 	const s32 *poff;
 
-	mutex_lock(&text_mutex);
 	for (poff = start; poff < end; poff++) {
 		u8 *ptr = (u8 *)poff + *poff;
 
@@ -470,7 +467,6 @@ static void alternatives_smp_unlock(const s32 *start, const s32 *end,
 		if (*ptr == 0xf0)
 			text_poke(ptr, ((unsigned char []){0x3E}), 1);
 	}
-	mutex_unlock(&text_mutex);
 }
 
 struct smp_alt_module {
@@ -489,8 +485,7 @@ struct smp_alt_module {
 	struct list_head next;
 };
 static LIST_HEAD(smp_alt_modules);
-static DEFINE_MUTEX(smp_alt);
-static bool uniproc_patched = false;	/* protected by smp_alt */
+static bool uniproc_patched = false;	/* protected by text_mutex */
 
 void __init_or_module alternatives_smp_module_add(struct module *mod,
 						  char *name,
@@ -499,7 +494,7 @@ void __init_or_module alternatives_smp_module_add(struct module *mod,
 {
 	struct smp_alt_module *smp;
 
-	mutex_lock(&smp_alt);
+	mutex_lock(&text_mutex);
 	if (!uniproc_patched)
 		goto unlock;
 
@@ -526,14 +521,14 @@ void __init_or_module alternatives_smp_module_add(struct module *mod,
 smp_unlock:
 	alternatives_smp_unlock(locks, locks_end, text, text_end);
 unlock:
-	mutex_unlock(&smp_alt);
+	mutex_unlock(&text_mutex);
 }
 
 void __init_or_module alternatives_smp_module_del(struct module *mod)
 {
 	struct smp_alt_module *item;
 
-	mutex_lock(&smp_alt);
+	mutex_lock(&text_mutex);
 	list_for_each_entry(item, &smp_alt_modules, next) {
 		if (mod != item->mod)
 			continue;
@@ -541,7 +536,7 @@ void __init_or_module alternatives_smp_module_del(struct module *mod)
 		kfree(item);
 		break;
 	}
-	mutex_unlock(&smp_alt);
+	mutex_unlock(&text_mutex);
 }
 
 void alternatives_enable_smp(void)
@@ -551,7 +546,7 @@ void alternatives_enable_smp(void)
 	/* Why bother if there are no other CPUs? */
 	BUG_ON(num_possible_cpus() == 1);
 
-	mutex_lock(&smp_alt);
+	mutex_lock(&text_mutex);
 
 	if (uniproc_patched) {
 		pr_info("switching to SMP code\n");
@@ -563,10 +558,13 @@ void alternatives_enable_smp(void)
 					      mod->text, mod->text_end);
 		uniproc_patched = false;
 	}
-	mutex_unlock(&smp_alt);
+	mutex_unlock(&text_mutex);
 }
 
-/* Return 1 if the address range is reserved for smp-alternatives */
+/*
+ * Return 1 if the address range is reserved for SMP-alternatives.
+ * Must hold text_mutex.
+ */
 int alternatives_text_reserved(void *start, void *end)
 {
 	struct smp_alt_module *mod;
@@ -574,6 +572,8 @@ int alternatives_text_reserved(void *start, void *end)
 	u8 *text_start = start;
 	u8 *text_end = end;
 
+	lockdep_assert_held(&text_mutex);
+
 	list_for_each_entry(mod, &smp_alt_modules, next) {
 		if (mod->text > text_end || mod->text_end < text_start)
 			continue;
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index 458da8509b75..6db28f17ff28 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -27,6 +27,8 @@ static const struct pci_device_id amd_root_ids[] = {
 	{}
 };
 
+#define PCI_DEVICE_ID_AMD_CNB17H_F4     0x1704
+
 const struct pci_device_id amd_nb_misc_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) },
@@ -37,6 +39,7 @@ const struct pci_device_id amd_nb_misc_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F3) },
 	{}
 };
 EXPORT_SYMBOL_GPL(amd_nb_misc_ids);
@@ -48,6 +51,7 @@ static const struct pci_device_id amd_nb_link_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_NB_F4) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F4) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_17H_DF_F4) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CNB17H_F4) },
 	{}
 };
 
@@ -402,11 +406,48 @@ void amd_flush_garts(void)
 }
 EXPORT_SYMBOL_GPL(amd_flush_garts);
 
+static void __fix_erratum_688(void *info)
+{
+#define MSR_AMD64_IC_CFG 0xC0011021
+
+	msr_set_bit(MSR_AMD64_IC_CFG, 3);
+	msr_set_bit(MSR_AMD64_IC_CFG, 14);
+}
+
+/* Apply erratum 688 fix so machines without a BIOS fix work. */
+static __init void fix_erratum_688(void)
+{
+	struct pci_dev *F4;
+	u32 val;
+
+	if (boot_cpu_data.x86 != 0x14)
+		return;
+
+	if (!amd_northbridges.num)
+		return;
+
+	F4 = node_to_amd_nb(0)->link;
+	if (!F4)
+		return;
+
+	if (pci_read_config_dword(F4, 0x164, &val))
+		return;
+
+	if (val & BIT(2))
+		return;
+
+	on_each_cpu(__fix_erratum_688, NULL, 0);
+
+	pr_info("x86/cpu/AMD: CPU erratum 688 worked around\n");
+}
+
 static __init int init_amd_nbs(void)
 {
 	amd_cache_northbridges();
 	amd_cache_gart();
 
+	fix_erratum_688();
+
 	return 0;
 }
 
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index ef2859f9fcce..f5d92bc3b884 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Firmware replacement code.
  *
diff --git a/arch/x86/kernel/apic/Makefile b/arch/x86/kernel/apic/Makefile
index 8e63ebdcbd0b..a9e08924927e 100644
--- a/arch/x86/kernel/apic/Makefile
+++ b/arch/x86/kernel/apic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for local APIC drivers and for the IO-APIC code
 #
@@ -6,7 +7,7 @@
 # In particualr, smp_apic_timer_interrupt() is called in random places.
 KCOV_INSTRUMENT		:= n
 
-obj-$(CONFIG_X86_LOCAL_APIC)	+= apic.o apic_noop.o ipi.o vector.o
+obj-$(CONFIG_X86_LOCAL_APIC)	+= apic.o apic_common.o apic_noop.o ipi.o vector.o
 obj-y				+= hw_nmi.o
 
 obj-$(CONFIG_X86_IO_APIC)	+= io_apic.o
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index d705c769f77d..6e272f3ea984 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -211,11 +211,7 @@ static inline int lapic_get_version(void)
  */
 static inline int lapic_is_integrated(void)
 {
-#ifdef CONFIG_X86_64
-	return 1;
-#else
 	return APIC_INTEGRATED(lapic_get_version());
-#endif
 }
 
 /*
@@ -298,14 +294,11 @@ int get_physical_broadcast(void)
  */
 int lapic_get_maxlvt(void)
 {
-	unsigned int v;
-
-	v = apic_read(APIC_LVR);
 	/*
 	 * - we always have APIC integrated on 64bit mode
 	 * - 82489DXs do not report # of LVT entries
 	 */
-	return APIC_INTEGRATED(GET_APIC_VERSION(v)) ? GET_APIC_MAXLVT(v) : 2;
+	return lapic_is_integrated() ? GET_APIC_MAXLVT(apic_read(APIC_LVR)) : 2;
 }
 
 /*
@@ -573,11 +566,21 @@ static u32 bdx_deadline_rev(void)
 	return ~0U;
 }
 
+static u32 skx_deadline_rev(void)
+{
+	switch (boot_cpu_data.x86_mask) {
+	case 0x03: return 0x01000136;
+	case 0x04: return 0x02000014;
+	}
+
+	return ~0U;
+}
+
 static const struct x86_cpu_id deadline_match[] = {
 	DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_HASWELL_X,	hsx_deadline_rev),
 	DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_X,	0x0b000020),
 	DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_BROADWELL_XEON_D,	bdx_deadline_rev),
-	DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_X,	0x02000014),
+	DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_SKYLAKE_X,	skx_deadline_rev),
 
 	DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_CORE,	0x22),
 	DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_ULT,	0x20),
@@ -600,7 +603,8 @@ static void apic_check_deadline_errata(void)
 	const struct x86_cpu_id *m;
 	u32 rev;
 
-	if (!boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER))
+	if (!boot_cpu_has(X86_FEATURE_TSC_DEADLINE_TIMER) ||
+	    boot_cpu_has(X86_FEATURE_HYPERVISOR))
 		return;
 
 	m = x86_match_cpu(deadline_match);
@@ -1218,53 +1222,100 @@ void __init sync_Arb_IDs(void)
 			APIC_INT_LEVELTRIG | APIC_DM_INIT);
 }
 
-/*
- * An initial setup of the virtual wire mode.
- */
-void __init init_bsp_APIC(void)
+enum apic_intr_mode_id apic_intr_mode;
+
+static int __init apic_intr_mode_select(void)
 {
-	unsigned int value;
+	/* Check kernel option */
+	if (disable_apic) {
+		pr_info("APIC disabled via kernel command line\n");
+		return APIC_PIC;
+	}
 
-	/*
-	 * Don't do the setup now if we have a SMP BIOS as the
-	 * through-I/O-APIC virtual wire mode might be active.
-	 */
-	if (smp_found_config || !boot_cpu_has(X86_FEATURE_APIC))
-		return;
+	/* Check BIOS */
+#ifdef CONFIG_X86_64
+	/* On 64-bit, the APIC must be integrated, Check local APIC only */
+	if (!boot_cpu_has(X86_FEATURE_APIC)) {
+		disable_apic = 1;
+		pr_info("APIC disabled by BIOS\n");
+		return APIC_PIC;
+	}
+#else
+	/* On 32-bit, the APIC may be integrated APIC or 82489DX */
 
-	/*
-	 * Do not trust the local APIC being empty at bootup.
-	 */
-	clear_local_APIC();
+	/* Neither 82489DX nor integrated APIC ? */
+	if (!boot_cpu_has(X86_FEATURE_APIC) && !smp_found_config) {
+		disable_apic = 1;
+		return APIC_PIC;
+	}
 
-	/*
-	 * Enable APIC.
-	 */
-	value = apic_read(APIC_SPIV);
-	value &= ~APIC_VECTOR_MASK;
-	value |= APIC_SPIV_APIC_ENABLED;
+	/* If the BIOS pretends there is an integrated APIC ? */
+	if (!boot_cpu_has(X86_FEATURE_APIC) &&
+		APIC_INTEGRATED(boot_cpu_apic_version)) {
+		disable_apic = 1;
+		pr_err(FW_BUG "Local APIC %d not detected, force emulation\n",
+				       boot_cpu_physical_apicid);
+		return APIC_PIC;
+	}
+#endif
 
-#ifdef CONFIG_X86_32
-	/* This bit is reserved on P4/Xeon and should be cleared */
-	if ((boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) &&
-	    (boot_cpu_data.x86 == 15))
-		value &= ~APIC_SPIV_FOCUS_DISABLED;
-	else
+	/* Check MP table or ACPI MADT configuration */
+	if (!smp_found_config) {
+		disable_ioapic_support();
+		if (!acpi_lapic) {
+			pr_info("APIC: ACPI MADT or MP tables are not detected\n");
+			return APIC_VIRTUAL_WIRE_NO_CONFIG;
+		}
+		return APIC_VIRTUAL_WIRE;
+	}
+
+#ifdef CONFIG_SMP
+	/* If SMP should be disabled, then really disable it! */
+	if (!setup_max_cpus) {
+		pr_info("APIC: SMP mode deactivated\n");
+		return APIC_SYMMETRIC_IO_NO_ROUTING;
+	}
+
+	if (read_apic_id() != boot_cpu_physical_apicid) {
+		panic("Boot APIC ID in local APIC unexpected (%d vs %d)",
+		     read_apic_id(), boot_cpu_physical_apicid);
+		/* Or can we switch back to PIC here? */
+	}
 #endif
-		value |= APIC_SPIV_FOCUS_DISABLED;
-	value |= SPURIOUS_APIC_VECTOR;
-	apic_write(APIC_SPIV, value);
 
-	/*
-	 * Set up the virtual wire mode.
-	 */
-	apic_write(APIC_LVT0, APIC_DM_EXTINT);
-	value = APIC_DM_NMI;
-	if (!lapic_is_integrated())		/* 82489DX */
-		value |= APIC_LVT_LEVEL_TRIGGER;
-	if (apic_extnmi == APIC_EXTNMI_NONE)
-		value |= APIC_LVT_MASKED;
-	apic_write(APIC_LVT1, value);
+	return APIC_SYMMETRIC_IO;
+}
+
+/* Init the interrupt delivery mode for the BSP */
+void __init apic_intr_mode_init(void)
+{
+	bool upmode = IS_ENABLED(CONFIG_UP_LATE_INIT);
+
+	apic_intr_mode = apic_intr_mode_select();
+
+	switch (apic_intr_mode) {
+	case APIC_PIC:
+		pr_info("APIC: Keep in PIC mode(8259)\n");
+		return;
+	case APIC_VIRTUAL_WIRE:
+		pr_info("APIC: Switch to virtual wire mode setup\n");
+		default_setup_apic_routing();
+		break;
+	case APIC_VIRTUAL_WIRE_NO_CONFIG:
+		pr_info("APIC: Switch to virtual wire mode setup with no configuration\n");
+		upmode = true;
+		default_setup_apic_routing();
+		break;
+	case APIC_SYMMETRIC_IO:
+		pr_info("APIC: Switch to symmetric I/O mode setup\n");
+		default_setup_apic_routing();
+		break;
+	case APIC_SYMMETRIC_IO_NO_ROUTING:
+		pr_info("APIC: Switch to symmetric I/O mode setup in no SMP routine\n");
+		break;
+	}
+
+	apic_bsp_setup(upmode);
 }
 
 static void lapic_setup_esr(void)
@@ -1462,7 +1513,7 @@ void setup_local_APIC(void)
 	/*
 	 * Set up LVT0, LVT1:
 	 *
-	 * set up through-local-APIC on the BP's LINT0. This is not
+	 * set up through-local-APIC on the boot CPU's LINT0. This is not
 	 * strictly necessary in pure symmetric-IO mode, but sometimes
 	 * we delegate interrupts to the 8259A.
 	 */
@@ -1488,7 +1539,9 @@ void setup_local_APIC(void)
 		value = APIC_DM_NMI;
 	else
 		value = APIC_DM_NMI | APIC_LVT_MASKED;
-	if (!lapic_is_integrated())		/* 82489DX */
+
+	/* Is 82489DX ? */
+	if (!lapic_is_integrated())
 		value |= APIC_LVT_LEVEL_TRIGGER;
 	apic_write(APIC_LVT1, value);
 
@@ -1634,7 +1687,7 @@ static __init void try_to_enable_x2apic(int remap_mode)
 		 * under KVM
 		 */
 		if (max_physical_apicid > 255 ||
-		    !hypervisor_x2apic_available()) {
+		    !x86_init.hyper.x2apic_available()) {
 			pr_info("x2apic: IRQ remapping doesn't support X2APIC mode\n");
 			x2apic_disable();
 			return;
@@ -1874,8 +1927,8 @@ void __init init_apic_mappings(void)
 		 * yeah -- we lie about apic_version
 		 * in case if apic was disabled via boot option
 		 * but it's not a problem for SMP compiled kernel
-		 * since smp_sanity_check is prepared for such a case
-		 * and disable smp mode
+		 * since apic_intr_mode_select is prepared for such
+		 * a case and disable smp mode
 		 */
 		boot_cpu_apic_version = GET_APIC_VERSION(apic_read(APIC_LVR));
 	}
@@ -2231,44 +2284,6 @@ int hard_smp_processor_id(void)
 	return read_apic_id();
 }
 
-void default_init_apic_ldr(void)
-{
-	unsigned long val;
-
-	apic_write(APIC_DFR, APIC_DFR_VALUE);
-	val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
-	val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
-	apic_write(APIC_LDR, val);
-}
-
-int default_cpu_mask_to_apicid(const struct cpumask *mask,
-			       struct irq_data *irqdata,
-			       unsigned int *apicid)
-{
-	unsigned int cpu = cpumask_first(mask);
-
-	if (cpu >= nr_cpu_ids)
-		return -EINVAL;
-	*apicid = per_cpu(x86_cpu_to_apicid, cpu);
-	irq_data_update_effective_affinity(irqdata, cpumask_of(cpu));
-	return 0;
-}
-
-int flat_cpu_mask_to_apicid(const struct cpumask *mask,
-			    struct irq_data *irqdata,
-			    unsigned int *apicid)
-
-{
-	struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata);
-	unsigned long cpu_mask = cpumask_bits(mask)[0] & APIC_ALL_CPUS;
-
-	if (!cpu_mask)
-		return -EINVAL;
-	*apicid = (unsigned int)cpu_mask;
-	cpumask_bits(effmsk)[0] = cpu_mask;
-	return 0;
-}
-
 /*
  * Override the generic EOI implementation with an optimized version.
  * Only called during early boot when only one CPU is active and with
@@ -2311,72 +2326,27 @@ static void __init apic_bsp_up_setup(void)
  * Returns:
  * apic_id of BSP APIC
  */
-int __init apic_bsp_setup(bool upmode)
+void __init apic_bsp_setup(bool upmode)
 {
-	int id;
-
 	connect_bsp_APIC();
 	if (upmode)
 		apic_bsp_up_setup();
 	setup_local_APIC();
 
-	if (x2apic_mode)
-		id = apic_read(APIC_LDR);
-	else
-		id = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
-
 	enable_IO_APIC();
 	end_local_APIC_setup();
 	irq_remap_enable_fault_handling();
 	setup_IO_APIC();
-	/* Setup local timer */
-	x86_init.timers.setup_percpu_clockev();
-	return id;
-}
-
-/*
- * This initializes the IO-APIC and APIC hardware if this is
- * a UP kernel.
- */
-int __init APIC_init_uniprocessor(void)
-{
-	if (disable_apic) {
-		pr_info("Apic disabled\n");
-		return -1;
-	}
-#ifdef CONFIG_X86_64
-	if (!boot_cpu_has(X86_FEATURE_APIC)) {
-		disable_apic = 1;
-		pr_info("Apic disabled by BIOS\n");
-		return -1;
-	}
-#else
-	if (!smp_found_config && !boot_cpu_has(X86_FEATURE_APIC))
-		return -1;
-
-	/*
-	 * Complain if the BIOS pretends there is one.
-	 */
-	if (!boot_cpu_has(X86_FEATURE_APIC) &&
-	    APIC_INTEGRATED(boot_cpu_apic_version)) {
-		pr_err("BIOS bug, local APIC 0x%x not detected!...\n",
-			boot_cpu_physical_apicid);
-		return -1;
-	}
-#endif
-
-	if (!smp_found_config)
-		disable_ioapic_support();
-
-	default_setup_apic_routing();
-	apic_bsp_setup(true);
-	return 0;
 }
 
 #ifdef CONFIG_UP_LATE_INIT
 void __init up_late_init(void)
 {
-	APIC_init_uniprocessor();
+	if (apic_intr_mode == APIC_PIC)
+		return;
+
+	/* Setup local timer */
+	x86_init.timers.setup_percpu_clockev();
 }
 #endif
 
diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c
new file mode 100644
index 000000000000..a360801779ae
--- /dev/null
+++ b/arch/x86/kernel/apic/apic_common.c
@@ -0,0 +1,46 @@
+/*
+ * Common functions shared between the various APIC flavours
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+#include <linux/irq.h>
+#include <asm/apic.h>
+
+u32 apic_default_calc_apicid(unsigned int cpu)
+{
+	return per_cpu(x86_cpu_to_apicid, cpu);
+}
+
+u32 apic_flat_calc_apicid(unsigned int cpu)
+{
+	return 1U << cpu;
+}
+
+bool default_check_apicid_used(physid_mask_t *map, int apicid)
+{
+	return physid_isset(apicid, *map);
+}
+
+void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
+{
+	*retmap = *phys_map;
+}
+
+int default_cpu_present_to_apicid(int mps_cpu)
+{
+	if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
+		return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
+	else
+		return BAD_APICID;
+}
+EXPORT_SYMBOL_GPL(default_cpu_present_to_apicid);
+
+int default_check_phys_apicid_present(int phys_apicid)
+{
+	return physid_isset(phys_apicid, phys_cpu_present_map);
+}
+
+int default_apic_id_valid(int apicid)
+{
+	return (apicid < 255);
+}
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index dedd5a41ba48..aa85690e9b64 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -119,7 +119,7 @@ static unsigned int flat_get_apic_id(unsigned long x)
 	return (x >> 24) & 0xFF;
 }
 
-static unsigned long set_apic_id(unsigned int id)
+static u32 set_apic_id(unsigned int id)
 {
 	return (id & 0xFF) << 24;
 }
@@ -154,12 +154,10 @@ static struct apic apic_flat __ro_after_init = {
 	.irq_delivery_mode		= dest_LowestPrio,
 	.irq_dest_mode			= 1, /* logical */
 
-	.target_cpus			= online_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= APIC_DEST_LOGICAL,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= flat_vector_allocation_domain,
 	.init_apic_ldr			= flat_init_apic_ldr,
 
 	.ioapic_phys_id_map		= NULL,
@@ -172,7 +170,7 @@ static struct apic apic_flat __ro_after_init = {
 	.get_apic_id			= flat_get_apic_id,
 	.set_apic_id			= set_apic_id,
 
-	.cpu_mask_to_apicid		= flat_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_flat_calc_apicid,
 
 	.send_IPI			= default_send_IPI_single,
 	.send_IPI_mask			= flat_send_IPI_mask,
@@ -249,12 +247,10 @@ static struct apic apic_physflat __ro_after_init = {
 	.irq_delivery_mode		= dest_Fixed,
 	.irq_dest_mode			= 0, /* physical */
 
-	.target_cpus			= online_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= 0,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= default_vector_allocation_domain,
 	/* not needed, but shouldn't hurt: */
 	.init_apic_ldr			= flat_init_apic_ldr,
 
@@ -268,7 +264,7 @@ static struct apic apic_physflat __ro_after_init = {
 	.get_apic_id			= flat_get_apic_id,
 	.set_apic_id			= set_apic_id,
 
-	.cpu_mask_to_apicid		= default_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_default_calc_apicid,
 
 	.send_IPI			= default_send_IPI_single_phys,
 	.send_IPI_mask			= default_send_IPI_mask_sequence_phys,
diff --git a/arch/x86/kernel/apic/apic_noop.c b/arch/x86/kernel/apic/apic_noop.c
index 6599f437b4ab..7b659c4480c9 100644
--- a/arch/x86/kernel/apic/apic_noop.c
+++ b/arch/x86/kernel/apic/apic_noop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NOOP APIC driver.
  *
@@ -83,20 +84,6 @@ static int noop_apic_id_registered(void)
 	return physid_isset(0, phys_cpu_present_map);
 }
 
-static const struct cpumask *noop_target_cpus(void)
-{
-	/* only BSP here */
-	return cpumask_of(0);
-}
-
-static void noop_vector_allocation_domain(int cpu, struct cpumask *retmask,
-					  const struct cpumask *mask)
-{
-	if (cpu != 0)
-		pr_warning("APIC: Vector allocated for non-BSP cpu\n");
-	cpumask_copy(retmask, cpumask_of(cpu));
-}
-
 static u32 noop_apic_read(u32 reg)
 {
 	WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_APIC) && !disable_apic);
@@ -108,6 +95,13 @@ static void noop_apic_write(u32 reg, u32 v)
 	WARN_ON_ONCE(boot_cpu_has(X86_FEATURE_APIC) && !disable_apic);
 }
 
+#ifdef CONFIG_X86_32
+static int noop_x86_32_early_logical_apicid(int cpu)
+{
+	return BAD_APICID;
+}
+#endif
+
 struct apic apic_noop __ro_after_init = {
 	.name				= "noop",
 	.probe				= noop_probe,
@@ -120,12 +114,10 @@ struct apic apic_noop __ro_after_init = {
 	/* logical delivery broadcast to all CPUs: */
 	.irq_dest_mode			= 1,
 
-	.target_cpus			= noop_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= APIC_DEST_LOGICAL,
 	.check_apicid_used		= default_check_apicid_used,
 
-	.vector_allocation_domain	= noop_vector_allocation_domain,
 	.init_apic_ldr			= noop_init_apic_ldr,
 
 	.ioapic_phys_id_map		= default_ioapic_phys_id_map,
@@ -141,7 +133,7 @@ struct apic apic_noop __ro_after_init = {
 	.get_apic_id			= noop_get_apic_id,
 	.set_apic_id			= NULL,
 
-	.cpu_mask_to_apicid		= flat_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_flat_calc_apicid,
 
 	.send_IPI			= noop_send_IPI,
 	.send_IPI_mask			= noop_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/apic_numachip.c b/arch/x86/kernel/apic/apic_numachip.c
index 2fda912219a6..134e04506ab4 100644
--- a/arch/x86/kernel/apic/apic_numachip.c
+++ b/arch/x86/kernel/apic/apic_numachip.c
@@ -38,7 +38,7 @@ static unsigned int numachip1_get_apic_id(unsigned long x)
 	return id;
 }
 
-static unsigned long numachip1_set_apic_id(unsigned int id)
+static u32 numachip1_set_apic_id(unsigned int id)
 {
 	return (id & 0xff) << 24;
 }
@@ -51,7 +51,7 @@ static unsigned int numachip2_get_apic_id(unsigned long x)
 	return ((mcfg >> (28 - 8)) & 0xfff00) | (x >> 24);
 }
 
-static unsigned long numachip2_set_apic_id(unsigned int id)
+static u32 numachip2_set_apic_id(unsigned int id)
 {
 	return id << 24;
 }
@@ -249,12 +249,10 @@ static const struct apic apic_numachip1 __refconst = {
 	.irq_delivery_mode		= dest_Fixed,
 	.irq_dest_mode			= 0, /* physical */
 
-	.target_cpus			= online_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= 0,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= default_vector_allocation_domain,
 	.init_apic_ldr			= flat_init_apic_ldr,
 
 	.ioapic_phys_id_map		= NULL,
@@ -267,7 +265,7 @@ static const struct apic apic_numachip1 __refconst = {
 	.get_apic_id			= numachip1_get_apic_id,
 	.set_apic_id			= numachip1_set_apic_id,
 
-	.cpu_mask_to_apicid		= default_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_default_calc_apicid,
 
 	.send_IPI			= numachip_send_IPI_one,
 	.send_IPI_mask			= numachip_send_IPI_mask,
@@ -300,12 +298,10 @@ static const struct apic apic_numachip2 __refconst = {
 	.irq_delivery_mode		= dest_Fixed,
 	.irq_dest_mode			= 0, /* physical */
 
-	.target_cpus			= online_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= 0,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= default_vector_allocation_domain,
 	.init_apic_ldr			= flat_init_apic_ldr,
 
 	.ioapic_phys_id_map		= NULL,
@@ -318,7 +314,7 @@ static const struct apic apic_numachip2 __refconst = {
 	.get_apic_id			= numachip2_get_apic_id,
 	.set_apic_id			= numachip2_set_apic_id,
 
-	.cpu_mask_to_apicid		= default_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_default_calc_apicid,
 
 	.send_IPI			= numachip_send_IPI_one,
 	.send_IPI_mask			= numachip_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 456e45e8bf84..afee386ff711 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * APIC driver for "bigsmp" xAPIC machines with more than 8 virtual CPUs.
  *
@@ -26,9 +27,9 @@ static int bigsmp_apic_id_registered(void)
 	return 1;
 }
 
-static unsigned long bigsmp_check_apicid_used(physid_mask_t *map, int apicid)
+static bool bigsmp_check_apicid_used(physid_mask_t *map, int apicid)
 {
-	return 0;
+	return false;
 }
 
 static int bigsmp_early_logical_apicid(int cpu)
@@ -154,12 +155,10 @@ static struct apic apic_bigsmp __ro_after_init = {
 	/* phys delivery to target CPU: */
 	.irq_dest_mode			= 0,
 
-	.target_cpus			= default_target_cpus,
 	.disable_esr			= 1,
 	.dest_logical			= 0,
 	.check_apicid_used		= bigsmp_check_apicid_used,
 
-	.vector_allocation_domain	= default_vector_allocation_domain,
 	.init_apic_ldr			= bigsmp_init_apic_ldr,
 
 	.ioapic_phys_id_map		= bigsmp_ioapic_phys_id_map,
@@ -172,7 +171,7 @@ static struct apic apic_bigsmp __ro_after_init = {
 	.get_apic_id			= bigsmp_get_apic_id,
 	.set_apic_id			= NULL,
 
-	.cpu_mask_to_apicid		= default_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_default_calc_apicid,
 
 	.send_IPI			= default_send_IPI_single_phys,
 	.send_IPI_mask			= default_send_IPI_mask_sequence_phys,
diff --git a/arch/x86/kernel/apic/htirq.c b/arch/x86/kernel/apic/htirq.c
index 56ccf9346b08..b07075dce8b7 100644
--- a/arch/x86/kernel/apic/htirq.c
+++ b/arch/x86/kernel/apic/htirq.c
@@ -112,8 +112,8 @@ static void htirq_domain_free(struct irq_domain *domain, unsigned int virq,
 	irq_domain_free_irqs_top(domain, virq, nr_irqs);
 }
 
-static void htirq_domain_activate(struct irq_domain *domain,
-				  struct irq_data *irq_data)
+static int htirq_domain_activate(struct irq_domain *domain,
+				 struct irq_data *irq_data, bool early)
 {
 	struct ht_irq_msg msg;
 	struct irq_cfg *cfg = irqd_cfg(irq_data);
@@ -132,6 +132,7 @@ static void htirq_domain_activate(struct irq_domain *domain,
 			HT_IRQ_LOW_MT_ARBITRATED) |
 		HT_IRQ_LOW_IRQ_MASKED;
 	write_ht_irq_msg(irq_data->irq, &msg);
+	return 0;
 }
 
 static void htirq_domain_deactivate(struct irq_domain *domain,
diff --git a/arch/x86/kernel/apic/hw_nmi.c b/arch/x86/kernel/apic/hw_nmi.c
index d6f387780849..d1fc62a67320 100644
--- a/arch/x86/kernel/apic/hw_nmi.c
+++ b/arch/x86/kernel/apic/hw_nmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  HW NMI watchdog support
  *
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 70e48aa6af98..201579dc5242 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Intel IO-APIC support for multi-Pentium hosts.
  *
@@ -1013,6 +1014,7 @@ static int alloc_isa_irq_from_domain(struct irq_domain *domain,
 					  info->ioapic_pin))
 			return -ENOMEM;
 	} else {
+		info->flags |= X86_IRQ_ALLOC_LEGACY;
 		irq = __irq_domain_alloc_irqs(domain, irq, 1, node, info, true,
 					      NULL);
 		if (irq >= 0) {
@@ -1585,6 +1587,43 @@ static int __init notimercheck(char *s)
 }
 __setup("no_timer_check", notimercheck);
 
+static void __init delay_with_tsc(void)
+{
+	unsigned long long start, now;
+	unsigned long end = jiffies + 4;
+
+	start = rdtsc();
+
+	/*
+	 * We don't know the TSC frequency yet, but waiting for
+	 * 40000000000/HZ TSC cycles is safe:
+	 * 4 GHz == 10 jiffies
+	 * 1 GHz == 40 jiffies
+	 */
+	do {
+		rep_nop();
+		now = rdtsc();
+	} while ((now - start) < 40000000000UL / HZ &&
+		time_before_eq(jiffies, end));
+}
+
+static void __init delay_without_tsc(void)
+{
+	unsigned long end = jiffies + 4;
+	int band = 1;
+
+	/*
+	 * We don't know any frequency yet, but waiting for
+	 * 40940000000/HZ cycles is safe:
+	 * 4 GHz == 10 jiffies
+	 * 1 GHz == 40 jiffies
+	 * 1 << 1 + 1 << 2 +...+ 1 << 11 = 4094
+	 */
+	do {
+		__delay(((1U << band++) * 10000000UL) / HZ);
+	} while (band < 12 && time_before_eq(jiffies, end));
+}
+
 /*
  * There is a nasty bug in some older SMP boards, their mptable lies
  * about the timer IRQ. We do the following to work around the situation:
@@ -1603,8 +1642,12 @@ static int __init timer_irq_works(void)
 
 	local_save_flags(flags);
 	local_irq_enable();
-	/* Let ten ticks pass... */
-	mdelay((10 * 1000) / HZ);
+
+	if (boot_cpu_has(X86_FEATURE_TSC))
+		delay_with_tsc();
+	else
+		delay_without_tsc();
+
 	local_irq_restore(flags);
 
 	/*
@@ -1820,26 +1863,36 @@ static void ioapic_ir_ack_level(struct irq_data *irq_data)
 	eoi_ioapic_pin(data->entry.vector, data);
 }
 
+static void ioapic_configure_entry(struct irq_data *irqd)
+{
+	struct mp_chip_data *mpd = irqd->chip_data;
+	struct irq_cfg *cfg = irqd_cfg(irqd);
+	struct irq_pin_list *entry;
+
+	/*
+	 * Only update when the parent is the vector domain, don't touch it
+	 * if the parent is the remapping domain. Check the installed
+	 * ioapic chip to verify that.
+	 */
+	if (irqd->chip == &ioapic_chip) {
+		mpd->entry.dest = cfg->dest_apicid;
+		mpd->entry.vector = cfg->vector;
+	}
+	for_each_irq_pin(entry, mpd->irq_2_pin)
+		__ioapic_write_entry(entry->apic, entry->pin, mpd->entry);
+}
+
 static int ioapic_set_affinity(struct irq_data *irq_data,
 			       const struct cpumask *mask, bool force)
 {
 	struct irq_data *parent = irq_data->parent_data;
-	struct mp_chip_data *data = irq_data->chip_data;
-	struct irq_pin_list *entry;
-	struct irq_cfg *cfg;
 	unsigned long flags;
 	int ret;
 
 	ret = parent->chip->irq_set_affinity(parent, mask, force);
 	raw_spin_lock_irqsave(&ioapic_lock, flags);
-	if (ret >= 0 && ret != IRQ_SET_MASK_OK_DONE) {
-		cfg = irqd_cfg(irq_data);
-		data->entry.dest = cfg->dest_apicid;
-		data->entry.vector = cfg->vector;
-		for_each_irq_pin(entry, data->irq_2_pin)
-			__ioapic_write_entry(entry->apic, entry->pin,
-					     data->entry);
-	}
+	if (ret >= 0 && ret != IRQ_SET_MASK_OK_DONE)
+		ioapic_configure_entry(irq_data);
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
 
 	return ret;
@@ -2096,7 +2149,7 @@ static inline void __init check_timer(void)
 				unmask_ioapic_irq(irq_get_irq_data(0));
 		}
 		irq_domain_deactivate_irq(irq_data);
-		irq_domain_activate_irq(irq_data);
+		irq_domain_activate_irq(irq_data, false);
 		if (timer_irq_works()) {
 			if (disable_timer_pin_1 > 0)
 				clear_IO_APIC_pin(0, pin1);
@@ -2118,7 +2171,7 @@ static inline void __init check_timer(void)
 		 */
 		replace_pin_at_irq_node(data, node, apic1, pin1, apic2, pin2);
 		irq_domain_deactivate_irq(irq_data);
-		irq_domain_activate_irq(irq_data);
+		irq_domain_activate_irq(irq_data, false);
 		legacy_pic->unmask(0);
 		if (timer_irq_works()) {
 			apic_printk(APIC_QUIET, KERN_INFO "....... works.\n");
@@ -2512,52 +2565,9 @@ int acpi_get_override_irq(u32 gsi, int *trigger, int *polarity)
 }
 
 /*
- * This function currently is only a helper for the i386 smp boot process where
- * we need to reprogram the ioredtbls to cater for the cpus which have come online
- * so mask in all cases should simply be apic->target_cpus()
+ * This function updates target affinity of IOAPIC interrupts to include
+ * the CPUs which came online during SMP bringup.
  */
-#ifdef CONFIG_SMP
-void __init setup_ioapic_dest(void)
-{
-	int pin, ioapic, irq, irq_entry;
-	const struct cpumask *mask;
-	struct irq_desc *desc;
-	struct irq_data *idata;
-	struct irq_chip *chip;
-
-	if (skip_ioapic_setup == 1)
-		return;
-
-	for_each_ioapic_pin(ioapic, pin) {
-		irq_entry = find_irq_entry(ioapic, pin, mp_INT);
-		if (irq_entry == -1)
-			continue;
-
-		irq = pin_2_irq(irq_entry, ioapic, pin, 0);
-		if (irq < 0 || !mp_init_irq_at_boot(ioapic, irq))
-			continue;
-
-		desc = irq_to_desc(irq);
-		raw_spin_lock_irq(&desc->lock);
-		idata = irq_desc_get_irq_data(desc);
-
-		/*
-		 * Honour affinities which have been set in early boot
-		 */
-		if (!irqd_can_balance(idata) || irqd_affinity_was_set(idata))
-			mask = irq_data_get_affinity_mask(idata);
-		else
-			mask = apic->target_cpus();
-
-		chip = irq_data_get_irq_chip(idata);
-		/* Might be lapic_chip for irq 0 */
-		if (chip->irq_set_affinity)
-			chip->irq_set_affinity(idata, mask, false);
-		raw_spin_unlock_irq(&desc->lock);
-	}
-}
-#endif
-
 #define IOAPIC_RESOURCE_NAME_SIZE 11
 
 static struct resource *ioapic_resources;
@@ -2977,17 +2987,15 @@ void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
 	irq_domain_free_irqs_top(domain, virq, nr_irqs);
 }
 
-void mp_irqdomain_activate(struct irq_domain *domain,
-			   struct irq_data *irq_data)
+int mp_irqdomain_activate(struct irq_domain *domain,
+			  struct irq_data *irq_data, bool early)
 {
 	unsigned long flags;
-	struct irq_pin_list *entry;
-	struct mp_chip_data *data = irq_data->chip_data;
 
 	raw_spin_lock_irqsave(&ioapic_lock, flags);
-	for_each_irq_pin(entry, data->irq_2_pin)
-		__ioapic_write_entry(entry->apic, entry->pin, data->entry);
+	ioapic_configure_entry(irq_data);
 	raw_spin_unlock_irqrestore(&ioapic_lock, flags);
+	return 0;
 }
 
 void mp_irqdomain_deactivate(struct irq_domain *domain,
diff --git a/arch/x86/kernel/apic/ipi.c b/arch/x86/kernel/apic/ipi.c
index 3a205d4a12d0..82f9244fe61f 100644
--- a/arch/x86/kernel/apic/ipi.c
+++ b/arch/x86/kernel/apic/ipi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cpumask.h>
 #include <linux/interrupt.h>
 
diff --git a/arch/x86/kernel/apic/probe_32.c b/arch/x86/kernel/apic/probe_32.c
index 63287659adb6..fa22017de806 100644
--- a/arch/x86/kernel/apic/probe_32.c
+++ b/arch/x86/kernel/apic/probe_32.c
@@ -66,6 +66,31 @@ static void setup_apic_flat_routing(void)
 #endif
 }
 
+static int default_apic_id_registered(void)
+{
+	return physid_isset(read_apic_id(), phys_cpu_present_map);
+}
+
+/*
+ * Set up the logical destination ID.  Intel recommends to set DFR, LDR and
+ * TPR before enabling an APIC.  See e.g. "AP-388 82489DX User's Manual"
+ * (Intel document number 292116).
+ */
+static void default_init_apic_ldr(void)
+{
+	unsigned long val;
+
+	apic_write(APIC_DFR, APIC_DFR_VALUE);
+	val = apic_read(APIC_LDR) & ~APIC_LDR_MASK;
+	val |= SET_APIC_LOGICAL_ID(1UL << smp_processor_id());
+	apic_write(APIC_LDR, val);
+}
+
+static int default_phys_pkg_id(int cpuid_apic, int index_msb)
+{
+	return cpuid_apic >> index_msb;
+}
+
 /* should be called last. */
 static int probe_default(void)
 {
@@ -84,12 +109,10 @@ static struct apic apic_default __ro_after_init = {
 	/* logical delivery broadcast to all CPUs: */
 	.irq_dest_mode			= 1,
 
-	.target_cpus			= default_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= APIC_DEST_LOGICAL,
 	.check_apicid_used		= default_check_apicid_used,
 
-	.vector_allocation_domain	= flat_vector_allocation_domain,
 	.init_apic_ldr			= default_init_apic_ldr,
 
 	.ioapic_phys_id_map		= default_ioapic_phys_id_map,
@@ -102,7 +125,7 @@ static struct apic apic_default __ro_after_init = {
 	.get_apic_id			= default_get_apic_id,
 	.set_apic_id			= NULL,
 
-	.cpu_mask_to_apicid		= flat_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_flat_calc_apicid,
 
 	.send_IPI			= default_send_IPI_single,
 	.send_IPI_mask			= default_send_IPI_mask_logical,
diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c
index 88c214e75a6b..05c85e693a5d 100644
--- a/arch/x86/kernel/apic/vector.c
+++ b/arch/x86/kernel/apic/vector.c
@@ -11,6 +11,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/interrupt.h>
+#include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/compiler.h>
 #include <linux/slab.h>
@@ -21,20 +22,30 @@
 #include <asm/desc.h>
 #include <asm/irq_remapping.h>
 
+#include <asm/trace/irq_vectors.h>
+
 struct apic_chip_data {
-	struct irq_cfg		cfg;
-	cpumask_var_t		domain;
-	cpumask_var_t		old_domain;
-	u8			move_in_progress : 1;
+	struct irq_cfg		hw_irq_cfg;
+	unsigned int		vector;
+	unsigned int		prev_vector;
+	unsigned int		cpu;
+	unsigned int		prev_cpu;
+	unsigned int		irq;
+	struct hlist_node	clist;
+	unsigned int		move_in_progress	: 1,
+				is_managed		: 1,
+				can_reserve		: 1,
+				has_reserved		: 1;
 };
 
 struct irq_domain *x86_vector_domain;
 EXPORT_SYMBOL_GPL(x86_vector_domain);
 static DEFINE_RAW_SPINLOCK(vector_lock);
-static cpumask_var_t vector_cpumask, vector_searchmask, searched_cpumask;
+static cpumask_var_t vector_searchmask;
 static struct irq_chip lapic_controller;
-#ifdef	CONFIG_X86_IO_APIC
-static struct apic_chip_data *legacy_irq_data[NR_IRQS_LEGACY];
+static struct irq_matrix *vector_matrix;
+#ifdef CONFIG_SMP
+static DEFINE_PER_CPU(struct hlist_head, cleanup_list);
 #endif
 
 void lock_vector_lock(void)
@@ -50,22 +61,37 @@ void unlock_vector_lock(void)
 	raw_spin_unlock(&vector_lock);
 }
 
-static struct apic_chip_data *apic_chip_data(struct irq_data *irq_data)
+void init_irq_alloc_info(struct irq_alloc_info *info,
+			 const struct cpumask *mask)
+{
+	memset(info, 0, sizeof(*info));
+	info->mask = mask;
+}
+
+void copy_irq_alloc_info(struct irq_alloc_info *dst, struct irq_alloc_info *src)
 {
-	if (!irq_data)
+	if (src)
+		*dst = *src;
+	else
+		memset(dst, 0, sizeof(*dst));
+}
+
+static struct apic_chip_data *apic_chip_data(struct irq_data *irqd)
+{
+	if (!irqd)
 		return NULL;
 
-	while (irq_data->parent_data)
-		irq_data = irq_data->parent_data;
+	while (irqd->parent_data)
+		irqd = irqd->parent_data;
 
-	return irq_data->chip_data;
+	return irqd->chip_data;
 }
 
-struct irq_cfg *irqd_cfg(struct irq_data *irq_data)
+struct irq_cfg *irqd_cfg(struct irq_data *irqd)
 {
-	struct apic_chip_data *data = apic_chip_data(irq_data);
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
 
-	return data ? &data->cfg : NULL;
+	return apicd ? &apicd->hw_irq_cfg : NULL;
 }
 EXPORT_SYMBOL_GPL(irqd_cfg);
 
@@ -76,270 +102,395 @@ struct irq_cfg *irq_cfg(unsigned int irq)
 
 static struct apic_chip_data *alloc_apic_chip_data(int node)
 {
-	struct apic_chip_data *data;
+	struct apic_chip_data *apicd;
 
-	data = kzalloc_node(sizeof(*data), GFP_KERNEL, node);
-	if (!data)
-		return NULL;
-	if (!zalloc_cpumask_var_node(&data->domain, GFP_KERNEL, node))
-		goto out_data;
-	if (!zalloc_cpumask_var_node(&data->old_domain, GFP_KERNEL, node))
-		goto out_domain;
-	return data;
-out_domain:
-	free_cpumask_var(data->domain);
-out_data:
-	kfree(data);
-	return NULL;
-}
-
-static void free_apic_chip_data(struct apic_chip_data *data)
-{
-	if (data) {
-		free_cpumask_var(data->domain);
-		free_cpumask_var(data->old_domain);
-		kfree(data);
+	apicd = kzalloc_node(sizeof(*apicd), GFP_KERNEL, node);
+	if (apicd)
+		INIT_HLIST_NODE(&apicd->clist);
+	return apicd;
+}
+
+static void free_apic_chip_data(struct apic_chip_data *apicd)
+{
+	kfree(apicd);
+}
+
+static void apic_update_irq_cfg(struct irq_data *irqd, unsigned int vector,
+				unsigned int cpu)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+
+	lockdep_assert_held(&vector_lock);
+
+	apicd->hw_irq_cfg.vector = vector;
+	apicd->hw_irq_cfg.dest_apicid = apic->calc_dest_apicid(cpu);
+	irq_data_update_effective_affinity(irqd, cpumask_of(cpu));
+	trace_vector_config(irqd->irq, vector, cpu,
+			    apicd->hw_irq_cfg.dest_apicid);
+}
+
+static void apic_update_vector(struct irq_data *irqd, unsigned int newvec,
+			       unsigned int newcpu)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	struct irq_desc *desc = irq_data_to_desc(irqd);
+
+	lockdep_assert_held(&vector_lock);
+
+	trace_vector_update(irqd->irq, newvec, newcpu, apicd->vector,
+			    apicd->cpu);
+
+	/* Setup the vector move, if required  */
+	if (apicd->vector && cpu_online(apicd->cpu)) {
+		apicd->move_in_progress = true;
+		apicd->prev_vector = apicd->vector;
+		apicd->prev_cpu = apicd->cpu;
+	} else {
+		apicd->prev_vector = 0;
 	}
+
+	apicd->vector = newvec;
+	apicd->cpu = newcpu;
+	BUG_ON(!IS_ERR_OR_NULL(per_cpu(vector_irq, newcpu)[newvec]));
+	per_cpu(vector_irq, newcpu)[newvec] = desc;
 }
 
-static int __assign_irq_vector(int irq, struct apic_chip_data *d,
-			       const struct cpumask *mask,
-			       struct irq_data *irqdata)
+static void vector_assign_managed_shutdown(struct irq_data *irqd)
 {
-	/*
-	 * NOTE! The local APIC isn't very good at handling
-	 * multiple interrupts at the same interrupt level.
-	 * As the interrupt level is determined by taking the
-	 * vector number and shifting that right by 4, we
-	 * want to spread these out a bit so that they don't
-	 * all fall in the same interrupt level.
-	 *
-	 * Also, we've got to be careful not to trash gate
-	 * 0x80, because int 0x80 is hm, kind of importantish. ;)
-	 */
-	static int current_vector = FIRST_EXTERNAL_VECTOR + VECTOR_OFFSET_START;
-	static int current_offset = VECTOR_OFFSET_START % 16;
-	int cpu, vector;
+	unsigned int cpu = cpumask_first(cpu_online_mask);
 
-	/*
-	 * If there is still a move in progress or the previous move has not
-	 * been cleaned up completely, tell the caller to come back later.
-	 */
-	if (d->move_in_progress ||
-	    cpumask_intersects(d->old_domain, cpu_online_mask))
-		return -EBUSY;
+	apic_update_irq_cfg(irqd, MANAGED_IRQ_SHUTDOWN_VECTOR, cpu);
+}
 
-	/* Only try and allocate irqs on cpus that are present */
-	cpumask_clear(d->old_domain);
-	cpumask_clear(searched_cpumask);
-	cpu = cpumask_first_and(mask, cpu_online_mask);
-	while (cpu < nr_cpu_ids) {
-		int new_cpu, offset;
+static int reserve_managed_vector(struct irq_data *irqd)
+{
+	const struct cpumask *affmsk = irq_data_get_affinity_mask(irqd);
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	unsigned long flags;
+	int ret;
 
-		/* Get the possible target cpus for @mask/@cpu from the apic */
-		apic->vector_allocation_domain(cpu, vector_cpumask, mask);
+	raw_spin_lock_irqsave(&vector_lock, flags);
+	apicd->is_managed = true;
+	ret = irq_matrix_reserve_managed(vector_matrix, affmsk);
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+	trace_vector_reserve_managed(irqd->irq, ret);
+	return ret;
+}
 
-		/*
-		 * Clear the offline cpus from @vector_cpumask for searching
-		 * and verify whether the result overlaps with @mask. If true,
-		 * then the call to apic->cpu_mask_to_apicid() will
-		 * succeed as well. If not, no point in trying to find a
-		 * vector in this mask.
-		 */
-		cpumask_and(vector_searchmask, vector_cpumask, cpu_online_mask);
-		if (!cpumask_intersects(vector_searchmask, mask))
-			goto next_cpu;
-
-		if (cpumask_subset(vector_cpumask, d->domain)) {
-			if (cpumask_equal(vector_cpumask, d->domain))
-				goto success;
-			/*
-			 * Mark the cpus which are not longer in the mask for
-			 * cleanup.
-			 */
-			cpumask_andnot(d->old_domain, d->domain, vector_cpumask);
-			vector = d->cfg.vector;
-			goto update;
-		}
+static void reserve_irq_vector_locked(struct irq_data *irqd)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
 
-		vector = current_vector;
-		offset = current_offset;
-next:
-		vector += 16;
-		if (vector >= FIRST_SYSTEM_VECTOR) {
-			offset = (offset + 1) % 16;
-			vector = FIRST_EXTERNAL_VECTOR + offset;
-		}
+	irq_matrix_reserve(vector_matrix);
+	apicd->can_reserve = true;
+	apicd->has_reserved = true;
+	trace_vector_reserve(irqd->irq, 0);
+	vector_assign_managed_shutdown(irqd);
+}
 
-		/* If the search wrapped around, try the next cpu */
-		if (unlikely(current_vector == vector))
-			goto next_cpu;
+static int reserve_irq_vector(struct irq_data *irqd)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&vector_lock, flags);
+	reserve_irq_vector_locked(irqd);
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+	return 0;
+}
 
-		if (test_bit(vector, used_vectors))
-			goto next;
+static int allocate_vector(struct irq_data *irqd, const struct cpumask *dest)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	bool resvd = apicd->has_reserved;
+	unsigned int cpu = apicd->cpu;
+	int vector = apicd->vector;
 
-		for_each_cpu(new_cpu, vector_searchmask) {
-			if (!IS_ERR_OR_NULL(per_cpu(vector_irq, new_cpu)[vector]))
-				goto next;
-		}
-		/* Found one! */
-		current_vector = vector;
-		current_offset = offset;
-		/* Schedule the old vector for cleanup on all cpus */
-		if (d->cfg.vector)
-			cpumask_copy(d->old_domain, d->domain);
-		for_each_cpu(new_cpu, vector_searchmask)
-			per_cpu(vector_irq, new_cpu)[vector] = irq_to_desc(irq);
-		goto update;
-
-next_cpu:
-		/*
-		 * We exclude the current @vector_cpumask from the requested
-		 * @mask and try again with the next online cpu in the
-		 * result. We cannot modify @mask, so we use @vector_cpumask
-		 * as a temporary buffer here as it will be reassigned when
-		 * calling apic->vector_allocation_domain() above.
-		 */
-		cpumask_or(searched_cpumask, searched_cpumask, vector_cpumask);
-		cpumask_andnot(vector_cpumask, mask, searched_cpumask);
-		cpu = cpumask_first_and(vector_cpumask, cpu_online_mask);
-		continue;
-	}
-	return -ENOSPC;
+	lockdep_assert_held(&vector_lock);
 
-update:
 	/*
-	 * Exclude offline cpus from the cleanup mask and set the
-	 * move_in_progress flag when the result is not empty.
+	 * If the current target CPU is online and in the new requested
+	 * affinity mask, there is no point in moving the interrupt from
+	 * one CPU to another.
 	 */
-	cpumask_and(d->old_domain, d->old_domain, cpu_online_mask);
-	d->move_in_progress = !cpumask_empty(d->old_domain);
-	d->cfg.old_vector = d->move_in_progress ? d->cfg.vector : 0;
-	d->cfg.vector = vector;
-	cpumask_copy(d->domain, vector_cpumask);
-success:
-	/*
-	 * Cache destination APIC IDs into cfg->dest_apicid. This cannot fail
-	 * as we already established, that mask & d->domain & cpu_online_mask
-	 * is not empty.
-	 *
-	 * vector_searchmask is a subset of d->domain and has the offline
-	 * cpus masked out.
-	 */
-	cpumask_and(vector_searchmask, vector_searchmask, mask);
-	BUG_ON(apic->cpu_mask_to_apicid(vector_searchmask, irqdata,
-					&d->cfg.dest_apicid));
+	if (vector && cpu_online(cpu) && cpumask_test_cpu(cpu, dest))
+		return 0;
+
+	vector = irq_matrix_alloc(vector_matrix, dest, resvd, &cpu);
+	if (vector > 0)
+		apic_update_vector(irqd, vector, cpu);
+	trace_vector_alloc(irqd->irq, vector, resvd, vector);
+	return vector;
+}
+
+static int assign_vector_locked(struct irq_data *irqd,
+				const struct cpumask *dest)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	int vector = allocate_vector(irqd, dest);
+
+	if (vector < 0)
+		return vector;
+
+	apic_update_irq_cfg(irqd, apicd->vector, apicd->cpu);
 	return 0;
 }
 
-static int assign_irq_vector(int irq, struct apic_chip_data *data,
-			     const struct cpumask *mask,
-			     struct irq_data *irqdata)
+static int assign_irq_vector(struct irq_data *irqd, const struct cpumask *dest)
 {
-	int err;
 	unsigned long flags;
+	int ret;
 
 	raw_spin_lock_irqsave(&vector_lock, flags);
-	err = __assign_irq_vector(irq, data, mask, irqdata);
+	cpumask_and(vector_searchmask, dest, cpu_online_mask);
+	ret = assign_vector_locked(irqd, vector_searchmask);
 	raw_spin_unlock_irqrestore(&vector_lock, flags);
-	return err;
+	return ret;
 }
 
-static int assign_irq_vector_policy(int irq, int node,
-				    struct apic_chip_data *data,
-				    struct irq_alloc_info *info,
-				    struct irq_data *irqdata)
+static int assign_irq_vector_any_locked(struct irq_data *irqd)
 {
-	if (info && info->mask)
-		return assign_irq_vector(irq, data, info->mask, irqdata);
-	if (node != NUMA_NO_NODE &&
-	    assign_irq_vector(irq, data, cpumask_of_node(node), irqdata) == 0)
+	/* Get the affinity mask - either irq_default_affinity or (user) set */
+	const struct cpumask *affmsk = irq_data_get_affinity_mask(irqd);
+	int node = irq_data_get_node(irqd);
+
+	if (node == NUMA_NO_NODE)
+		goto all;
+	/* Try the intersection of @affmsk and node mask */
+	cpumask_and(vector_searchmask, cpumask_of_node(node), affmsk);
+	if (!assign_vector_locked(irqd, vector_searchmask))
+		return 0;
+	/* Try the node mask */
+	if (!assign_vector_locked(irqd, cpumask_of_node(node)))
 		return 0;
-	return assign_irq_vector(irq, data, apic->target_cpus(), irqdata);
+all:
+	/* Try the full affinity mask */
+	cpumask_and(vector_searchmask, affmsk, cpu_online_mask);
+	if (!assign_vector_locked(irqd, vector_searchmask))
+		return 0;
+	/* Try the full online mask */
+	return assign_vector_locked(irqd, cpu_online_mask);
+}
+
+static int
+assign_irq_vector_policy(struct irq_data *irqd, struct irq_alloc_info *info)
+{
+	if (irqd_affinity_is_managed(irqd))
+		return reserve_managed_vector(irqd);
+	if (info->mask)
+		return assign_irq_vector(irqd, info->mask);
+	/*
+	 * Make only a global reservation with no guarantee. A real vector
+	 * is associated at activation time.
+	 */
+	return reserve_irq_vector(irqd);
 }
 
-static void clear_irq_vector(int irq, struct apic_chip_data *data)
+static int
+assign_managed_vector(struct irq_data *irqd, const struct cpumask *dest)
 {
-	struct irq_desc *desc;
-	int cpu, vector;
+	const struct cpumask *affmsk = irq_data_get_affinity_mask(irqd);
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	int vector, cpu;
 
-	if (!data->cfg.vector)
+	cpumask_and(vector_searchmask, vector_searchmask, affmsk);
+	cpu = cpumask_first(vector_searchmask);
+	if (cpu >= nr_cpu_ids)
+		return -EINVAL;
+	/* set_affinity might call here for nothing */
+	if (apicd->vector && cpumask_test_cpu(apicd->cpu, vector_searchmask))
+		return 0;
+	vector = irq_matrix_alloc_managed(vector_matrix, cpu);
+	trace_vector_alloc_managed(irqd->irq, vector, vector);
+	if (vector < 0)
+		return vector;
+	apic_update_vector(irqd, vector, cpu);
+	apic_update_irq_cfg(irqd, vector, cpu);
+	return 0;
+}
+
+static void clear_irq_vector(struct irq_data *irqd)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	bool managed = irqd_affinity_is_managed(irqd);
+	unsigned int vector = apicd->vector;
+
+	lockdep_assert_held(&vector_lock);
+
+	if (!vector)
 		return;
 
-	vector = data->cfg.vector;
-	for_each_cpu_and(cpu, data->domain, cpu_online_mask)
-		per_cpu(vector_irq, cpu)[vector] = VECTOR_UNUSED;
+	trace_vector_clear(irqd->irq, vector, apicd->cpu, apicd->prev_vector,
+			   apicd->prev_cpu);
 
-	data->cfg.vector = 0;
-	cpumask_clear(data->domain);
+	per_cpu(vector_irq, apicd->cpu)[vector] = VECTOR_UNUSED;
+	irq_matrix_free(vector_matrix, apicd->cpu, vector, managed);
+	apicd->vector = 0;
 
-	/*
-	 * If move is in progress or the old_domain mask is not empty,
-	 * i.e. the cleanup IPI has not been processed yet, we need to remove
-	 * the old references to desc from all cpus vector tables.
-	 */
-	if (!data->move_in_progress && cpumask_empty(data->old_domain))
+	/* Clean up move in progress */
+	vector = apicd->prev_vector;
+	if (!vector)
 		return;
 
-	desc = irq_to_desc(irq);
-	for_each_cpu_and(cpu, data->old_domain, cpu_online_mask) {
-		for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS;
-		     vector++) {
-			if (per_cpu(vector_irq, cpu)[vector] != desc)
-				continue;
-			per_cpu(vector_irq, cpu)[vector] = VECTOR_UNUSED;
-			break;
-		}
+	per_cpu(vector_irq, apicd->prev_cpu)[vector] = VECTOR_UNUSED;
+	irq_matrix_free(vector_matrix, apicd->prev_cpu, vector, managed);
+	apicd->prev_vector = 0;
+	apicd->move_in_progress = 0;
+	hlist_del_init(&apicd->clist);
+}
+
+static void x86_vector_deactivate(struct irq_domain *dom, struct irq_data *irqd)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	unsigned long flags;
+
+	trace_vector_deactivate(irqd->irq, apicd->is_managed,
+				apicd->can_reserve, false);
+
+	/* Regular fixed assigned interrupt */
+	if (!apicd->is_managed && !apicd->can_reserve)
+		return;
+	/* If the interrupt has a global reservation, nothing to do */
+	if (apicd->has_reserved)
+		return;
+
+	raw_spin_lock_irqsave(&vector_lock, flags);
+	clear_irq_vector(irqd);
+	if (apicd->can_reserve)
+		reserve_irq_vector_locked(irqd);
+	else
+		vector_assign_managed_shutdown(irqd);
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+}
+
+static int activate_reserved(struct irq_data *irqd)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	int ret;
+
+	ret = assign_irq_vector_any_locked(irqd);
+	if (!ret)
+		apicd->has_reserved = false;
+	return ret;
+}
+
+static int activate_managed(struct irq_data *irqd)
+{
+	const struct cpumask *dest = irq_data_get_affinity_mask(irqd);
+	int ret;
+
+	cpumask_and(vector_searchmask, dest, cpu_online_mask);
+	if (WARN_ON_ONCE(cpumask_empty(vector_searchmask))) {
+		/* Something in the core code broke! Survive gracefully */
+		pr_err("Managed startup for irq %u, but no CPU\n", irqd->irq);
+		return EINVAL;
+	}
+
+	ret = assign_managed_vector(irqd, vector_searchmask);
+	/*
+	 * This should not happen. The vector reservation got buggered.  Handle
+	 * it gracefully.
+	 */
+	if (WARN_ON_ONCE(ret < 0)) {
+		pr_err("Managed startup irq %u, no vector available\n",
+		       irqd->irq);
 	}
-	data->move_in_progress = 0;
+       return ret;
 }
 
-void init_irq_alloc_info(struct irq_alloc_info *info,
-			 const struct cpumask *mask)
+static int x86_vector_activate(struct irq_domain *dom, struct irq_data *irqd,
+			       bool early)
 {
-	memset(info, 0, sizeof(*info));
-	info->mask = mask;
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	unsigned long flags;
+	int ret = 0;
+
+	trace_vector_activate(irqd->irq, apicd->is_managed,
+			      apicd->can_reserve, early);
+
+	/* Nothing to do for fixed assigned vectors */
+	if (!apicd->can_reserve && !apicd->is_managed)
+		return 0;
+
+	raw_spin_lock_irqsave(&vector_lock, flags);
+	if (early || irqd_is_managed_and_shutdown(irqd))
+		vector_assign_managed_shutdown(irqd);
+	else if (apicd->is_managed)
+		ret = activate_managed(irqd);
+	else if (apicd->has_reserved)
+		ret = activate_reserved(irqd);
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+	return ret;
 }
 
-void copy_irq_alloc_info(struct irq_alloc_info *dst, struct irq_alloc_info *src)
+static void vector_free_reserved_and_managed(struct irq_data *irqd)
 {
-	if (src)
-		*dst = *src;
-	else
-		memset(dst, 0, sizeof(*dst));
+	const struct cpumask *dest = irq_data_get_affinity_mask(irqd);
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+
+	trace_vector_teardown(irqd->irq, apicd->is_managed,
+			      apicd->has_reserved);
+
+	if (apicd->has_reserved)
+		irq_matrix_remove_reserved(vector_matrix);
+	if (apicd->is_managed)
+		irq_matrix_remove_managed(vector_matrix, dest);
 }
 
 static void x86_vector_free_irqs(struct irq_domain *domain,
 				 unsigned int virq, unsigned int nr_irqs)
 {
-	struct apic_chip_data *apic_data;
-	struct irq_data *irq_data;
+	struct apic_chip_data *apicd;
+	struct irq_data *irqd;
 	unsigned long flags;
 	int i;
 
 	for (i = 0; i < nr_irqs; i++) {
-		irq_data = irq_domain_get_irq_data(x86_vector_domain, virq + i);
-		if (irq_data && irq_data->chip_data) {
+		irqd = irq_domain_get_irq_data(x86_vector_domain, virq + i);
+		if (irqd && irqd->chip_data) {
 			raw_spin_lock_irqsave(&vector_lock, flags);
-			clear_irq_vector(virq + i, irq_data->chip_data);
-			apic_data = irq_data->chip_data;
-			irq_domain_reset_irq_data(irq_data);
+			clear_irq_vector(irqd);
+			vector_free_reserved_and_managed(irqd);
+			apicd = irqd->chip_data;
+			irq_domain_reset_irq_data(irqd);
 			raw_spin_unlock_irqrestore(&vector_lock, flags);
-			free_apic_chip_data(apic_data);
-#ifdef	CONFIG_X86_IO_APIC
-			if (virq + i < nr_legacy_irqs())
-				legacy_irq_data[virq + i] = NULL;
-#endif
+			free_apic_chip_data(apicd);
 		}
 	}
 }
 
+static bool vector_configure_legacy(unsigned int virq, struct irq_data *irqd,
+				    struct apic_chip_data *apicd)
+{
+	unsigned long flags;
+	bool realloc = false;
+
+	apicd->vector = ISA_IRQ_VECTOR(virq);
+	apicd->cpu = 0;
+
+	raw_spin_lock_irqsave(&vector_lock, flags);
+	/*
+	 * If the interrupt is activated, then it must stay at this vector
+	 * position. That's usually the timer interrupt (0).
+	 */
+	if (irqd_is_activated(irqd)) {
+		trace_vector_setup(virq, true, 0);
+		apic_update_irq_cfg(irqd, apicd->vector, apicd->cpu);
+	} else {
+		/* Release the vector */
+		apicd->can_reserve = true;
+		clear_irq_vector(irqd);
+		realloc = true;
+	}
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+	return realloc;
+}
+
 static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq,
 				 unsigned int nr_irqs, void *arg)
 {
 	struct irq_alloc_info *info = arg;
-	struct apic_chip_data *data;
-	struct irq_data *irq_data;
+	struct apic_chip_data *apicd;
+	struct irq_data *irqd;
 	int i, err, node;
 
 	if (disable_apic)
@@ -350,34 +501,37 @@ static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq,
 		return -ENOSYS;
 
 	for (i = 0; i < nr_irqs; i++) {
-		irq_data = irq_domain_get_irq_data(domain, virq + i);
-		BUG_ON(!irq_data);
-		node = irq_data_get_node(irq_data);
-#ifdef	CONFIG_X86_IO_APIC
-		if (virq + i < nr_legacy_irqs() && legacy_irq_data[virq + i])
-			data = legacy_irq_data[virq + i];
-		else
-#endif
-			data = alloc_apic_chip_data(node);
-		if (!data) {
+		irqd = irq_domain_get_irq_data(domain, virq + i);
+		BUG_ON(!irqd);
+		node = irq_data_get_node(irqd);
+		WARN_ON_ONCE(irqd->chip_data);
+		apicd = alloc_apic_chip_data(node);
+		if (!apicd) {
 			err = -ENOMEM;
 			goto error;
 		}
 
-		irq_data->chip = &lapic_controller;
-		irq_data->chip_data = data;
-		irq_data->hwirq = virq + i;
-		err = assign_irq_vector_policy(virq + i, node, data, info,
-					       irq_data);
-		if (err)
-			goto error;
+		apicd->irq = virq + i;
+		irqd->chip = &lapic_controller;
+		irqd->chip_data = apicd;
+		irqd->hwirq = virq + i;
+		irqd_set_single_target(irqd);
 		/*
-		 * If the apic destination mode is physical, then the
-		 * effective affinity is restricted to a single target
-		 * CPU. Mark the interrupt accordingly.
+		 * Legacy vectors are already assigned when the IOAPIC
+		 * takes them over. They stay on the same vector. This is
+		 * required for check_timer() to work correctly as it might
+		 * switch back to legacy mode. Only update the hardware
+		 * config.
 		 */
-		if (!apic->irq_dest_mode)
-			irqd_set_single_target(irq_data);
+		if (info->flags & X86_IRQ_ALLOC_LEGACY) {
+			if (!vector_configure_legacy(virq + i, irqd, apicd))
+				continue;
+		}
+
+		err = assign_irq_vector_policy(irqd, info);
+		trace_vector_setup(virq + i, false, err);
+		if (err)
+			goto error;
 	}
 
 	return 0;
@@ -387,9 +541,56 @@ error:
 	return err;
 }
 
+#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+void x86_vector_debug_show(struct seq_file *m, struct irq_domain *d,
+			   struct irq_data *irqd, int ind)
+{
+	unsigned int cpu, vector, prev_cpu, prev_vector;
+	struct apic_chip_data *apicd;
+	unsigned long flags;
+	int irq;
+
+	if (!irqd) {
+		irq_matrix_debug_show(m, vector_matrix, ind);
+		return;
+	}
+
+	irq = irqd->irq;
+	if (irq < nr_legacy_irqs() && !test_bit(irq, &io_apic_irqs)) {
+		seq_printf(m, "%*sVector: %5d\n", ind, "", ISA_IRQ_VECTOR(irq));
+		seq_printf(m, "%*sTarget: Legacy PIC all CPUs\n", ind, "");
+		return;
+	}
+
+	apicd = irqd->chip_data;
+	if (!apicd) {
+		seq_printf(m, "%*sVector: Not assigned\n", ind, "");
+		return;
+	}
+
+	raw_spin_lock_irqsave(&vector_lock, flags);
+	cpu = apicd->cpu;
+	vector = apicd->vector;
+	prev_cpu = apicd->prev_cpu;
+	prev_vector = apicd->prev_vector;
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
+	seq_printf(m, "%*sVector: %5u\n", ind, "", vector);
+	seq_printf(m, "%*sTarget: %5u\n", ind, "", cpu);
+	if (prev_vector) {
+		seq_printf(m, "%*sPrevious vector: %5u\n", ind, "", prev_vector);
+		seq_printf(m, "%*sPrevious target: %5u\n", ind, "", prev_cpu);
+	}
+}
+#endif
+
 static const struct irq_domain_ops x86_vector_domain_ops = {
-	.alloc	= x86_vector_alloc_irqs,
-	.free	= x86_vector_free_irqs,
+	.alloc		= x86_vector_alloc_irqs,
+	.free		= x86_vector_free_irqs,
+	.activate	= x86_vector_activate,
+	.deactivate	= x86_vector_deactivate,
+#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+	.debug_show	= x86_vector_debug_show,
+#endif
 };
 
 int __init arch_probe_nr_irqs(void)
@@ -419,35 +620,40 @@ int __init arch_probe_nr_irqs(void)
 	return legacy_pic->probe();
 }
 
-#ifdef	CONFIG_X86_IO_APIC
-static void __init init_legacy_irqs(void)
+void lapic_assign_legacy_vector(unsigned int irq, bool replace)
 {
-	int i, node = cpu_to_node(0);
-	struct apic_chip_data *data;
-
 	/*
-	 * For legacy IRQ's, start with assigning irq0 to irq15 to
-	 * ISA_IRQ_VECTOR(i) for all cpu's.
+	 * Use assign system here so it wont get accounted as allocated
+	 * and moveable in the cpu hotplug check and it prevents managed
+	 * irq reservation from touching it.
 	 */
-	for (i = 0; i < nr_legacy_irqs(); i++) {
-		data = legacy_irq_data[i] = alloc_apic_chip_data(node);
-		BUG_ON(!data);
+	irq_matrix_assign_system(vector_matrix, ISA_IRQ_VECTOR(irq), replace);
+}
+
+void __init lapic_assign_system_vectors(void)
+{
+	unsigned int i, vector = 0;
 
-		data->cfg.vector = ISA_IRQ_VECTOR(i);
-		cpumask_setall(data->domain);
-		irq_set_chip_data(i, data);
+	for_each_set_bit_from(vector, system_vectors, NR_VECTORS)
+		irq_matrix_assign_system(vector_matrix, vector, false);
+
+	if (nr_legacy_irqs() > 1)
+		lapic_assign_legacy_vector(PIC_CASCADE_IR, false);
+
+	/* System vectors are reserved, online it */
+	irq_matrix_online(vector_matrix);
+
+	/* Mark the preallocated legacy interrupts */
+	for (i = 0; i < nr_legacy_irqs(); i++) {
+		if (i != PIC_CASCADE_IR)
+			irq_matrix_assign(vector_matrix, ISA_IRQ_VECTOR(i));
 	}
 }
-#else
-static inline void init_legacy_irqs(void) { }
-#endif
 
 int __init arch_early_irq_init(void)
 {
 	struct fwnode_handle *fn;
 
-	init_legacy_irqs();
-
 	fn = irq_domain_alloc_named_fwnode("VECTOR");
 	BUG_ON(!fn);
 	x86_vector_domain = irq_domain_create_tree(fn, &x86_vector_domain_ops,
@@ -459,100 +665,115 @@ int __init arch_early_irq_init(void)
 	arch_init_msi_domain(x86_vector_domain);
 	arch_init_htirq_domain(x86_vector_domain);
 
-	BUG_ON(!alloc_cpumask_var(&vector_cpumask, GFP_KERNEL));
 	BUG_ON(!alloc_cpumask_var(&vector_searchmask, GFP_KERNEL));
-	BUG_ON(!alloc_cpumask_var(&searched_cpumask, GFP_KERNEL));
+
+	/*
+	 * Allocate the vector matrix allocator data structure and limit the
+	 * search area.
+	 */
+	vector_matrix = irq_alloc_matrix(NR_VECTORS, FIRST_EXTERNAL_VECTOR,
+					 FIRST_SYSTEM_VECTOR);
+	BUG_ON(!vector_matrix);
 
 	return arch_early_ioapic_init();
 }
 
-/* Initialize vector_irq on a new cpu */
-static void __setup_vector_irq(int cpu)
+#ifdef CONFIG_SMP
+
+static struct irq_desc *__setup_vector_irq(int vector)
 {
-	struct apic_chip_data *data;
-	struct irq_desc *desc;
-	int irq, vector;
+	int isairq = vector - ISA_IRQ_VECTOR(0);
+
+	/* Check whether the irq is in the legacy space */
+	if (isairq < 0 || isairq >= nr_legacy_irqs())
+		return VECTOR_UNUSED;
+	/* Check whether the irq is handled by the IOAPIC */
+	if (test_bit(isairq, &io_apic_irqs))
+		return VECTOR_UNUSED;
+	return irq_to_desc(isairq);
+}
 
-	/* Mark the inuse vectors */
-	for_each_irq_desc(irq, desc) {
-		struct irq_data *idata = irq_desc_get_irq_data(desc);
+/* Online the local APIC infrastructure and initialize the vectors */
+void lapic_online(void)
+{
+	unsigned int vector;
 
-		data = apic_chip_data(idata);
-		if (!data || !cpumask_test_cpu(cpu, data->domain))
-			continue;
-		vector = data->cfg.vector;
-		per_cpu(vector_irq, cpu)[vector] = desc;
-	}
-	/* Mark the free vectors */
-	for (vector = 0; vector < NR_VECTORS; ++vector) {
-		desc = per_cpu(vector_irq, cpu)[vector];
-		if (IS_ERR_OR_NULL(desc))
-			continue;
+	lockdep_assert_held(&vector_lock);
 
-		data = apic_chip_data(irq_desc_get_irq_data(desc));
-		if (!cpumask_test_cpu(cpu, data->domain))
-			per_cpu(vector_irq, cpu)[vector] = VECTOR_UNUSED;
-	}
+	/* Online the vector matrix array for this CPU */
+	irq_matrix_online(vector_matrix);
+
+	/*
+	 * The interrupt affinity logic never targets interrupts to offline
+	 * CPUs. The exception are the legacy PIC interrupts. In general
+	 * they are only targeted to CPU0, but depending on the platform
+	 * they can be distributed to any online CPU in hardware. The
+	 * kernel has no influence on that. So all active legacy vectors
+	 * must be installed on all CPUs. All non legacy interrupts can be
+	 * cleared.
+	 */
+	for (vector = 0; vector < NR_VECTORS; vector++)
+		this_cpu_write(vector_irq[vector], __setup_vector_irq(vector));
 }
 
-/*
- * Setup the vector to irq mappings. Must be called with vector_lock held.
- */
-void setup_vector_irq(int cpu)
+void lapic_offline(void)
 {
-	int irq;
+	lock_vector_lock();
+	irq_matrix_offline(vector_matrix);
+	unlock_vector_lock();
+}
+
+static int apic_set_affinity(struct irq_data *irqd,
+			     const struct cpumask *dest, bool force)
+{
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
+	int err;
 
-	lockdep_assert_held(&vector_lock);
 	/*
-	 * On most of the platforms, legacy PIC delivers the interrupts on the
-	 * boot cpu. But there are certain platforms where PIC interrupts are
-	 * delivered to multiple cpu's. If the legacy IRQ is handled by the
-	 * legacy PIC, for the new cpu that is coming online, setup the static
-	 * legacy vector to irq mapping:
+	 * Core code can call here for inactive interrupts. For inactive
+	 * interrupts which use managed or reservation mode there is no
+	 * point in going through the vector assignment right now as the
+	 * activation will assign a vector which fits the destination
+	 * cpumask. Let the core code store the destination mask and be
+	 * done with it.
 	 */
-	for (irq = 0; irq < nr_legacy_irqs(); irq++)
-		per_cpu(vector_irq, cpu)[ISA_IRQ_VECTOR(irq)] = irq_to_desc(irq);
+	if (!irqd_is_activated(irqd) &&
+	    (apicd->is_managed || apicd->can_reserve))
+		return IRQ_SET_MASK_OK;
 
-	__setup_vector_irq(cpu);
+	raw_spin_lock(&vector_lock);
+	cpumask_and(vector_searchmask, dest, cpu_online_mask);
+	if (irqd_affinity_is_managed(irqd))
+		err = assign_managed_vector(irqd, vector_searchmask);
+	else
+		err = assign_vector_locked(irqd, vector_searchmask);
+	raw_spin_unlock(&vector_lock);
+	return err ? err : IRQ_SET_MASK_OK;
 }
 
-static int apic_retrigger_irq(struct irq_data *irq_data)
+#else
+# define apic_set_affinity	NULL
+#endif
+
+static int apic_retrigger_irq(struct irq_data *irqd)
 {
-	struct apic_chip_data *data = apic_chip_data(irq_data);
+	struct apic_chip_data *apicd = apic_chip_data(irqd);
 	unsigned long flags;
-	int cpu;
 
 	raw_spin_lock_irqsave(&vector_lock, flags);
-	cpu = cpumask_first_and(data->domain, cpu_online_mask);
-	apic->send_IPI_mask(cpumask_of(cpu), data->cfg.vector);
+	apic->send_IPI(apicd->cpu, apicd->vector);
 	raw_spin_unlock_irqrestore(&vector_lock, flags);
 
 	return 1;
 }
 
-void apic_ack_edge(struct irq_data *data)
+void apic_ack_edge(struct irq_data *irqd)
 {
-	irq_complete_move(irqd_cfg(data));
-	irq_move_irq(data);
+	irq_complete_move(irqd_cfg(irqd));
+	irq_move_irq(irqd);
 	ack_APIC_irq();
 }
 
-static int apic_set_affinity(struct irq_data *irq_data,
-			     const struct cpumask *dest, bool force)
-{
-	struct apic_chip_data *data = irq_data->chip_data;
-	int err, irq = irq_data->irq;
-
-	if (!IS_ENABLED(CONFIG_SMP))
-		return -EPERM;
-
-	if (!cpumask_intersects(dest, cpu_online_mask))
-		return -EINVAL;
-
-	err = assign_irq_vector(irq, data, dest, irq_data);
-	return err ? err : IRQ_SET_MASK_OK;
-}
-
 static struct irq_chip lapic_controller = {
 	.name			= "APIC",
 	.irq_ack		= apic_ack_edge,
@@ -561,115 +782,98 @@ static struct irq_chip lapic_controller = {
 };
 
 #ifdef CONFIG_SMP
-static void __send_cleanup_vector(struct apic_chip_data *data)
-{
-	raw_spin_lock(&vector_lock);
-	cpumask_and(data->old_domain, data->old_domain, cpu_online_mask);
-	data->move_in_progress = 0;
-	if (!cpumask_empty(data->old_domain))
-		apic->send_IPI_mask(data->old_domain, IRQ_MOVE_CLEANUP_VECTOR);
-	raw_spin_unlock(&vector_lock);
-}
 
-void send_cleanup_vector(struct irq_cfg *cfg)
+static void free_moved_vector(struct apic_chip_data *apicd)
 {
-	struct apic_chip_data *data;
+	unsigned int vector = apicd->prev_vector;
+	unsigned int cpu = apicd->prev_cpu;
+	bool managed = apicd->is_managed;
 
-	data = container_of(cfg, struct apic_chip_data, cfg);
-	if (data->move_in_progress)
-		__send_cleanup_vector(data);
+	/*
+	 * This should never happen. Managed interrupts are not
+	 * migrated except on CPU down, which does not involve the
+	 * cleanup vector. But try to keep the accounting correct
+	 * nevertheless.
+	 */
+	WARN_ON_ONCE(managed);
+
+	trace_vector_free_moved(apicd->irq, cpu, vector, managed);
+	irq_matrix_free(vector_matrix, cpu, vector, managed);
+	per_cpu(vector_irq, cpu)[vector] = VECTOR_UNUSED;
+	hlist_del_init(&apicd->clist);
+	apicd->prev_vector = 0;
+	apicd->move_in_progress = 0;
 }
 
 asmlinkage __visible void __irq_entry smp_irq_move_cleanup_interrupt(void)
 {
-	unsigned vector, me;
+	struct hlist_head *clhead = this_cpu_ptr(&cleanup_list);
+	struct apic_chip_data *apicd;
+	struct hlist_node *tmp;
 
 	entering_ack_irq();
-
 	/* Prevent vectors vanishing under us */
 	raw_spin_lock(&vector_lock);
 
-	me = smp_processor_id();
-	for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
-		struct apic_chip_data *data;
-		struct irq_desc *desc;
-		unsigned int irr;
-
-	retry:
-		desc = __this_cpu_read(vector_irq[vector]);
-		if (IS_ERR_OR_NULL(desc))
-			continue;
-
-		if (!raw_spin_trylock(&desc->lock)) {
-			raw_spin_unlock(&vector_lock);
-			cpu_relax();
-			raw_spin_lock(&vector_lock);
-			goto retry;
-		}
-
-		data = apic_chip_data(irq_desc_get_irq_data(desc));
-		if (!data)
-			goto unlock;
+	hlist_for_each_entry_safe(apicd, tmp, clhead, clist) {
+		unsigned int irr, vector = apicd->prev_vector;
 
 		/*
-		 * Nothing to cleanup if irq migration is in progress
-		 * or this cpu is not set in the cleanup mask.
-		 */
-		if (data->move_in_progress ||
-		    !cpumask_test_cpu(me, data->old_domain))
-			goto unlock;
-
-		/*
-		 * We have two cases to handle here:
-		 * 1) vector is unchanged but the target mask got reduced
-		 * 2) vector and the target mask has changed
-		 *
-		 * #1 is obvious, but in #2 we have two vectors with the same
-		 * irq descriptor: the old and the new vector. So we need to
-		 * make sure that we only cleanup the old vector. The new
-		 * vector has the current @vector number in the config and
-		 * this cpu is part of the target mask. We better leave that
-		 * one alone.
-		 */
-		if (vector == data->cfg.vector &&
-		    cpumask_test_cpu(me, data->domain))
-			goto unlock;
-
-		irr = apic_read(APIC_IRR + (vector / 32 * 0x10));
-		/*
-		 * Check if the vector that needs to be cleanedup is
-		 * registered at the cpu's IRR. If so, then this is not
-		 * the best time to clean it up. Lets clean it up in the
+		 * Paranoia: Check if the vector that needs to be cleaned
+		 * up is registered at the APICs IRR. If so, then this is
+		 * not the best time to clean it up. Clean it up in the
 		 * next attempt by sending another IRQ_MOVE_CLEANUP_VECTOR
-		 * to myself.
+		 * to this CPU. IRQ_MOVE_CLEANUP_VECTOR is the lowest
+		 * priority external vector, so on return from this
+		 * interrupt the device interrupt will happen first.
 		 */
-		if (irr  & (1 << (vector % 32))) {
+		irr = apic_read(APIC_IRR + (vector / 32 * 0x10));
+		if (irr & (1U << (vector % 32))) {
 			apic->send_IPI_self(IRQ_MOVE_CLEANUP_VECTOR);
-			goto unlock;
+			continue;
 		}
-		__this_cpu_write(vector_irq[vector], VECTOR_UNUSED);
-		cpumask_clear_cpu(me, data->old_domain);
-unlock:
-		raw_spin_unlock(&desc->lock);
+		free_moved_vector(apicd);
 	}
 
 	raw_spin_unlock(&vector_lock);
-
 	exiting_irq();
 }
 
+static void __send_cleanup_vector(struct apic_chip_data *apicd)
+{
+	unsigned int cpu;
+
+	raw_spin_lock(&vector_lock);
+	apicd->move_in_progress = 0;
+	cpu = apicd->prev_cpu;
+	if (cpu_online(cpu)) {
+		hlist_add_head(&apicd->clist, per_cpu_ptr(&cleanup_list, cpu));
+		apic->send_IPI(cpu, IRQ_MOVE_CLEANUP_VECTOR);
+	} else {
+		apicd->prev_vector = 0;
+	}
+	raw_spin_unlock(&vector_lock);
+}
+
+void send_cleanup_vector(struct irq_cfg *cfg)
+{
+	struct apic_chip_data *apicd;
+
+	apicd = container_of(cfg, struct apic_chip_data, hw_irq_cfg);
+	if (apicd->move_in_progress)
+		__send_cleanup_vector(apicd);
+}
+
 static void __irq_complete_move(struct irq_cfg *cfg, unsigned vector)
 {
-	unsigned me;
-	struct apic_chip_data *data;
+	struct apic_chip_data *apicd;
 
-	data = container_of(cfg, struct apic_chip_data, cfg);
-	if (likely(!data->move_in_progress))
+	apicd = container_of(cfg, struct apic_chip_data, hw_irq_cfg);
+	if (likely(!apicd->move_in_progress))
 		return;
 
-	me = smp_processor_id();
-	if (vector == data->cfg.vector && cpumask_test_cpu(me, data->domain))
-		__send_cleanup_vector(data);
+	if (vector == apicd->vector && apicd->cpu == smp_processor_id())
+		__send_cleanup_vector(apicd);
 }
 
 void irq_complete_move(struct irq_cfg *cfg)
@@ -682,10 +886,9 @@ void irq_complete_move(struct irq_cfg *cfg)
  */
 void irq_force_complete_move(struct irq_desc *desc)
 {
-	struct irq_data *irqdata;
-	struct apic_chip_data *data;
-	struct irq_cfg *cfg;
-	unsigned int cpu;
+	struct apic_chip_data *apicd;
+	struct irq_data *irqd;
+	unsigned int vector;
 
 	/*
 	 * The function is called for all descriptors regardless of which
@@ -696,43 +899,31 @@ void irq_force_complete_move(struct irq_desc *desc)
 	 * Check first that the chip_data is what we expect
 	 * (apic_chip_data) before touching it any further.
 	 */
-	irqdata = irq_domain_get_irq_data(x86_vector_domain,
-					  irq_desc_get_irq(desc));
-	if (!irqdata)
+	irqd = irq_domain_get_irq_data(x86_vector_domain,
+				       irq_desc_get_irq(desc));
+	if (!irqd)
 		return;
 
-	data = apic_chip_data(irqdata);
-	cfg = data ? &data->cfg : NULL;
+	raw_spin_lock(&vector_lock);
+	apicd = apic_chip_data(irqd);
+	if (!apicd)
+		goto unlock;
 
-	if (!cfg)
-		return;
+	/*
+	 * If prev_vector is empty, no action required.
+	 */
+	vector = apicd->prev_vector;
+	if (!vector)
+		goto unlock;
 
 	/*
-	 * This is tricky. If the cleanup of @data->old_domain has not been
+	 * This is tricky. If the cleanup of the old vector has not been
 	 * done yet, then the following setaffinity call will fail with
 	 * -EBUSY. This can leave the interrupt in a stale state.
 	 *
 	 * All CPUs are stuck in stop machine with interrupts disabled so
 	 * calling __irq_complete_move() would be completely pointless.
-	 */
-	raw_spin_lock(&vector_lock);
-	/*
-	 * Clean out all offline cpus (including the outgoing one) from the
-	 * old_domain mask.
-	 */
-	cpumask_and(data->old_domain, data->old_domain, cpu_online_mask);
-
-	/*
-	 * If move_in_progress is cleared and the old_domain mask is empty,
-	 * then there is nothing to cleanup. fixup_irqs() will take care of
-	 * the stale vectors on the outgoing cpu.
-	 */
-	if (!data->move_in_progress && cpumask_empty(data->old_domain)) {
-		raw_spin_unlock(&vector_lock);
-		return;
-	}
-
-	/*
+	 *
 	 * 1) The interrupt is in move_in_progress state. That means that we
 	 *    have not seen an interrupt since the io_apic was reprogrammed to
 	 *    the new vector.
@@ -740,7 +931,7 @@ void irq_force_complete_move(struct irq_desc *desc)
 	 * 2) The interrupt has fired on the new vector, but the cleanup IPIs
 	 *    have not been processed yet.
 	 */
-	if (data->move_in_progress) {
+	if (apicd->move_in_progress) {
 		/*
 		 * In theory there is a race:
 		 *
@@ -774,21 +965,43 @@ void irq_force_complete_move(struct irq_desc *desc)
 		 * area arises.
 		 */
 		pr_warn("IRQ fixup: irq %d move in progress, old vector %d\n",
-			irqdata->irq, cfg->old_vector);
+			irqd->irq, vector);
 	}
-	/*
-	 * If old_domain is not empty, then other cpus still have the irq
-	 * descriptor set in their vector array. Clean it up.
-	 */
-	for_each_cpu(cpu, data->old_domain)
-		per_cpu(vector_irq, cpu)[cfg->old_vector] = VECTOR_UNUSED;
+	free_moved_vector(apicd);
+unlock:
+	raw_spin_unlock(&vector_lock);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+/*
+ * Note, this is not accurate accounting, but at least good enough to
+ * prevent that the actual interrupt move will run out of vectors.
+ */
+int lapic_can_unplug_cpu(void)
+{
+	unsigned int rsvd, avl, tomove, cpu = smp_processor_id();
+	int ret = 0;
 
-	/* Cleanup the left overs of the (half finished) move */
-	cpumask_clear(data->old_domain);
-	data->move_in_progress = 0;
+	raw_spin_lock(&vector_lock);
+	tomove = irq_matrix_allocated(vector_matrix);
+	avl = irq_matrix_available(vector_matrix, true);
+	if (avl < tomove) {
+		pr_warn("CPU %u has %u vectors, %u available. Cannot disable CPU\n",
+			cpu, tomove, avl);
+		ret = -ENOSPC;
+		goto out;
+	}
+	rsvd = irq_matrix_reserved(vector_matrix);
+	if (avl < rsvd) {
+		pr_warn("Reserved vectors %u > available %u. IRQ request may fail\n",
+			rsvd, avl);
+	}
+out:
 	raw_spin_unlock(&vector_lock);
+	return ret;
 }
-#endif
+#endif /* HOTPLUG_CPU */
+#endif /* SMP */
 
 static void __init print_APIC_field(int base)
 {
diff --git a/arch/x86/kernel/apic/x2apic.h b/arch/x86/kernel/apic/x2apic.h
new file mode 100644
index 000000000000..b107de381cb5
--- /dev/null
+++ b/arch/x86/kernel/apic/x2apic.h
@@ -0,0 +1,9 @@
+/* Common bits for X2APIC cluster/physical modes. */
+
+int x2apic_apic_id_valid(int apicid);
+int x2apic_apic_id_registered(void);
+void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest);
+unsigned int x2apic_get_apic_id(unsigned long id);
+u32 x2apic_set_apic_id(unsigned int id);
+int x2apic_phys_pkg_id(int initial_apicid, int index_msb);
+void x2apic_send_IPI_self(int vector);
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index 481237cb1544..622f13ca8a94 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/string.h>
@@ -8,22 +9,24 @@
 #include <linux/cpu.h>
 
 #include <asm/smp.h>
-#include <asm/x2apic.h>
+#include "x2apic.h"
+
+struct cluster_mask {
+	unsigned int	clusterid;
+	int		node;
+	struct cpumask	mask;
+};
 
 static DEFINE_PER_CPU(u32, x86_cpu_to_logical_apicid);
-static DEFINE_PER_CPU(cpumask_var_t, cpus_in_cluster);
 static DEFINE_PER_CPU(cpumask_var_t, ipi_mask);
+static DEFINE_PER_CPU(struct cluster_mask *, cluster_masks);
+static struct cluster_mask *cluster_hotplug_mask;
 
 static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 {
 	return x2apic_enabled();
 }
 
-static inline u32 x2apic_cluster(int cpu)
-{
-	return per_cpu(x86_cpu_to_logical_apicid, cpu) >> 16;
-}
-
 static void x2apic_send_IPI(int cpu, int vector)
 {
 	u32 dest = per_cpu(x86_cpu_to_logical_apicid, cpu);
@@ -35,49 +38,34 @@ static void x2apic_send_IPI(int cpu, int vector)
 static void
 __x2apic_send_IPI_mask(const struct cpumask *mask, int vector, int apic_dest)
 {
-	struct cpumask *cpus_in_cluster_ptr;
-	struct cpumask *ipi_mask_ptr;
-	unsigned int cpu, this_cpu;
+	unsigned int cpu, clustercpu;
+	struct cpumask *tmpmsk;
 	unsigned long flags;
 	u32 dest;
 
 	x2apic_wrmsr_fence();
-
 	local_irq_save(flags);
 
-	this_cpu = smp_processor_id();
+	tmpmsk = this_cpu_cpumask_var_ptr(ipi_mask);
+	cpumask_copy(tmpmsk, mask);
+	/* If IPI should not be sent to self, clear current CPU */
+	if (apic_dest != APIC_DEST_ALLINC)
+		cpumask_clear_cpu(smp_processor_id(), tmpmsk);
 
-	/*
-	 * We are to modify mask, so we need an own copy
-	 * and be sure it's manipulated with irq off.
-	 */
-	ipi_mask_ptr = this_cpu_cpumask_var_ptr(ipi_mask);
-	cpumask_copy(ipi_mask_ptr, mask);
-
-	/*
-	 * The idea is to send one IPI per cluster.
-	 */
-	for_each_cpu(cpu, ipi_mask_ptr) {
-		unsigned long i;
+	/* Collapse cpus in a cluster so a single IPI per cluster is sent */
+	for_each_cpu(cpu, tmpmsk) {
+		struct cluster_mask *cmsk = per_cpu(cluster_masks, cpu);
 
-		cpus_in_cluster_ptr = per_cpu(cpus_in_cluster, cpu);
 		dest = 0;
-
-		/* Collect cpus in cluster. */
-		for_each_cpu_and(i, ipi_mask_ptr, cpus_in_cluster_ptr) {
-			if (apic_dest == APIC_DEST_ALLINC || i != this_cpu)
-				dest |= per_cpu(x86_cpu_to_logical_apicid, i);
-		}
+		for_each_cpu_and(clustercpu, tmpmsk, &cmsk->mask)
+			dest |= per_cpu(x86_cpu_to_logical_apicid, clustercpu);
 
 		if (!dest)
 			continue;
 
 		__x2apic_send_IPI_dest(dest, vector, apic->dest_logical);
-		/*
-		 * Cluster sibling cpus should be discared now so
-		 * we would not send IPI them second time.
-		 */
-		cpumask_andnot(ipi_mask_ptr, ipi_mask_ptr, cpus_in_cluster_ptr);
+		/* Remove cluster CPUs from tmpmask */
+		cpumask_andnot(tmpmsk, tmpmsk, &cmsk->mask);
 	}
 
 	local_irq_restore(flags);
@@ -104,125 +92,90 @@ static void x2apic_send_IPI_all(int vector)
 	__x2apic_send_IPI_mask(cpu_online_mask, vector, APIC_DEST_ALLINC);
 }
 
-static int
-x2apic_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata,
-			  unsigned int *apicid)
+static u32 x2apic_calc_apicid(unsigned int cpu)
 {
-	struct cpumask *effmsk = irq_data_get_effective_affinity_mask(irqdata);
-	unsigned int cpu;
-	u32 dest = 0;
-	u16 cluster;
-
-	cpu = cpumask_first(mask);
-	if (cpu >= nr_cpu_ids)
-		return -EINVAL;
-
-	dest = per_cpu(x86_cpu_to_logical_apicid, cpu);
-	cluster = x2apic_cluster(cpu);
-
-	cpumask_clear(effmsk);
-	for_each_cpu(cpu, mask) {
-		if (cluster != x2apic_cluster(cpu))
-			continue;
-		dest |= per_cpu(x86_cpu_to_logical_apicid, cpu);
-		cpumask_set_cpu(cpu, effmsk);
-	}
-
-	*apicid = dest;
-	return 0;
+	return per_cpu(x86_cpu_to_logical_apicid, cpu);
 }
 
 static void init_x2apic_ldr(void)
 {
-	unsigned int this_cpu = smp_processor_id();
+	struct cluster_mask *cmsk = this_cpu_read(cluster_masks);
+	u32 cluster, apicid = apic_read(APIC_LDR);
 	unsigned int cpu;
 
-	per_cpu(x86_cpu_to_logical_apicid, this_cpu) = apic_read(APIC_LDR);
+	this_cpu_write(x86_cpu_to_logical_apicid, apicid);
+
+	if (cmsk)
+		goto update;
 
-	cpumask_set_cpu(this_cpu, per_cpu(cpus_in_cluster, this_cpu));
+	cluster = apicid >> 16;
 	for_each_online_cpu(cpu) {
-		if (x2apic_cluster(this_cpu) != x2apic_cluster(cpu))
-			continue;
-		cpumask_set_cpu(this_cpu, per_cpu(cpus_in_cluster, cpu));
-		cpumask_set_cpu(cpu, per_cpu(cpus_in_cluster, this_cpu));
+		cmsk = per_cpu(cluster_masks, cpu);
+		/* Matching cluster found. Link and update it. */
+		if (cmsk && cmsk->clusterid == cluster)
+			goto update;
 	}
+	cmsk = cluster_hotplug_mask;
+	cluster_hotplug_mask = NULL;
+update:
+	this_cpu_write(cluster_masks, cmsk);
+	cpumask_set_cpu(smp_processor_id(), &cmsk->mask);
 }
 
-/*
- * At CPU state changes, update the x2apic cluster sibling info.
- */
-static int x2apic_prepare_cpu(unsigned int cpu)
+static int alloc_clustermask(unsigned int cpu, int node)
 {
-	if (!zalloc_cpumask_var(&per_cpu(cpus_in_cluster, cpu), GFP_KERNEL))
-		return -ENOMEM;
+	if (per_cpu(cluster_masks, cpu))
+		return 0;
+	/*
+	 * If a hotplug spare mask exists, check whether it's on the right
+	 * node. If not, free it and allocate a new one.
+	 */
+	if (cluster_hotplug_mask) {
+		if (cluster_hotplug_mask->node == node)
+			return 0;
+		kfree(cluster_hotplug_mask);
+	}
 
-	if (!zalloc_cpumask_var(&per_cpu(ipi_mask, cpu), GFP_KERNEL)) {
-		free_cpumask_var(per_cpu(cpus_in_cluster, cpu));
+	cluster_hotplug_mask = kzalloc_node(sizeof(*cluster_hotplug_mask),
+					    GFP_KERNEL, node);
+	if (!cluster_hotplug_mask)
 		return -ENOMEM;
-	}
+	cluster_hotplug_mask->node = node;
+	return 0;
+}
 
+static int x2apic_prepare_cpu(unsigned int cpu)
+{
+	if (alloc_clustermask(cpu, cpu_to_node(cpu)) < 0)
+		return -ENOMEM;
+	if (!zalloc_cpumask_var(&per_cpu(ipi_mask, cpu), GFP_KERNEL))
+		return -ENOMEM;
 	return 0;
 }
 
-static int x2apic_dead_cpu(unsigned int this_cpu)
+static int x2apic_dead_cpu(unsigned int dead_cpu)
 {
-	int cpu;
+	struct cluster_mask *cmsk = per_cpu(cluster_masks, dead_cpu);
 
-	for_each_online_cpu(cpu) {
-		if (x2apic_cluster(this_cpu) != x2apic_cluster(cpu))
-			continue;
-		cpumask_clear_cpu(this_cpu, per_cpu(cpus_in_cluster, cpu));
-		cpumask_clear_cpu(cpu, per_cpu(cpus_in_cluster, this_cpu));
-	}
-	free_cpumask_var(per_cpu(cpus_in_cluster, this_cpu));
-	free_cpumask_var(per_cpu(ipi_mask, this_cpu));
+	cpumask_clear_cpu(dead_cpu, &cmsk->mask);
+	free_cpumask_var(per_cpu(ipi_mask, dead_cpu));
 	return 0;
 }
 
 static int x2apic_cluster_probe(void)
 {
-	int cpu = smp_processor_id();
-	int ret;
-
 	if (!x2apic_mode)
 		return 0;
 
-	ret = cpuhp_setup_state(CPUHP_X2APIC_PREPARE, "x86/x2apic:prepare",
-				x2apic_prepare_cpu, x2apic_dead_cpu);
-	if (ret < 0) {
+	if (cpuhp_setup_state(CPUHP_X2APIC_PREPARE, "x86/x2apic:prepare",
+			      x2apic_prepare_cpu, x2apic_dead_cpu) < 0) {
 		pr_err("Failed to register X2APIC_PREPARE\n");
 		return 0;
 	}
-	cpumask_set_cpu(cpu, per_cpu(cpus_in_cluster, cpu));
+	init_x2apic_ldr();
 	return 1;
 }
 
-static const struct cpumask *x2apic_cluster_target_cpus(void)
-{
-	return cpu_all_mask;
-}
-
-/*
- * Each x2apic cluster is an allocation domain.
- */
-static void cluster_vector_allocation_domain(int cpu, struct cpumask *retmask,
-					     const struct cpumask *mask)
-{
-	/*
-	 * To minimize vector pressure, default case of boot, device bringup
-	 * etc will use a single cpu for the interrupt destination.
-	 *
-	 * On explicit migration requests coming from irqbalance etc,
-	 * interrupts will be routed to the x2apic cluster (cluster-id
-	 * derived from the first cpu in the mask) members specified
-	 * in the mask.
-	 */
-	if (mask == x2apic_cluster_target_cpus())
-		cpumask_copy(retmask, cpumask_of(cpu));
-	else
-		cpumask_and(retmask, mask, per_cpu(cpus_in_cluster, cpu));
-}
-
 static struct apic apic_x2apic_cluster __ro_after_init = {
 
 	.name				= "cluster x2apic",
@@ -234,12 +187,10 @@ static struct apic apic_x2apic_cluster __ro_after_init = {
 	.irq_delivery_mode		= dest_LowestPrio,
 	.irq_dest_mode			= 1, /* logical */
 
-	.target_cpus			= x2apic_cluster_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= APIC_DEST_LOGICAL,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= cluster_vector_allocation_domain,
 	.init_apic_ldr			= init_x2apic_ldr,
 
 	.ioapic_phys_id_map		= NULL,
@@ -252,7 +203,7 @@ static struct apic apic_x2apic_cluster __ro_after_init = {
 	.get_apic_id			= x2apic_get_apic_id,
 	.set_apic_id			= x2apic_set_apic_id,
 
-	.cpu_mask_to_apicid		= x2apic_cpu_mask_to_apicid,
+	.calc_dest_apicid		= x2apic_calc_apicid,
 
 	.send_IPI			= x2apic_send_IPI,
 	.send_IPI_mask			= x2apic_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index 3baf0c3dc875..f8d9d69994e6 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/threads.h>
 #include <linux/cpumask.h>
 #include <linux/string.h>
@@ -6,7 +7,8 @@
 #include <linux/dmar.h>
 
 #include <asm/smp.h>
-#include <asm/x2apic.h>
+#include <asm/ipi.h>
+#include "x2apic.h"
 
 int x2apic_phys;
 
@@ -98,6 +100,43 @@ static int x2apic_phys_probe(void)
 	return apic == &apic_x2apic_phys;
 }
 
+/* Common x2apic functions, also used by x2apic_cluster */
+int x2apic_apic_id_valid(int apicid)
+{
+	return 1;
+}
+
+int x2apic_apic_id_registered(void)
+{
+	return 1;
+}
+
+void __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest)
+{
+	unsigned long cfg = __prepare_ICR(0, vector, dest);
+	native_x2apic_icr_write(cfg, apicid);
+}
+
+unsigned int x2apic_get_apic_id(unsigned long id)
+{
+	return id;
+}
+
+u32 x2apic_set_apic_id(unsigned int id)
+{
+	return id;
+}
+
+int x2apic_phys_pkg_id(int initial_apicid, int index_msb)
+{
+	return initial_apicid >> index_msb;
+}
+
+void x2apic_send_IPI_self(int vector)
+{
+	apic_write(APIC_SELF_IPI, vector);
+}
+
 static struct apic apic_x2apic_phys __ro_after_init = {
 
 	.name				= "physical x2apic",
@@ -109,12 +148,10 @@ static struct apic apic_x2apic_phys __ro_after_init = {
 	.irq_delivery_mode		= dest_Fixed,
 	.irq_dest_mode			= 0, /* physical */
 
-	.target_cpus			= online_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= 0,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= default_vector_allocation_domain,
 	.init_apic_ldr			= init_x2apic_ldr,
 
 	.ioapic_phys_id_map		= NULL,
@@ -127,7 +164,7 @@ static struct apic apic_x2apic_phys __ro_after_init = {
 	.get_apic_id			= x2apic_get_apic_id,
 	.set_apic_id			= x2apic_set_apic_id,
 
-	.cpu_mask_to_apicid		= default_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_default_calc_apicid,
 
 	.send_IPI			= x2apic_send_IPI,
 	.send_IPI_mask			= x2apic_send_IPI_mask,
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 0d57bb9079c9..e1b8e8bf6b3c 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -154,6 +154,48 @@ static int __init early_get_pnodeid(void)
 	return pnode;
 }
 
+static void __init uv_tsc_check_sync(void)
+{
+	u64 mmr;
+	int sync_state;
+	int mmr_shift;
+	char *state;
+	bool valid;
+
+	/* Accommodate different UV arch BIOSes */
+	mmr = uv_early_read_mmr(UVH_TSC_SYNC_MMR);
+	mmr_shift =
+		is_uv1_hub() ? 0 :
+		is_uv2_hub() ? UVH_TSC_SYNC_SHIFT_UV2K : UVH_TSC_SYNC_SHIFT;
+	if (mmr_shift)
+		sync_state = (mmr >> mmr_shift) & UVH_TSC_SYNC_MASK;
+	else
+		sync_state = 0;
+
+	switch (sync_state) {
+	case UVH_TSC_SYNC_VALID:
+		state = "in sync";
+		valid = true;
+		break;
+
+	case UVH_TSC_SYNC_INVALID:
+		state = "unstable";
+		valid = false;
+		break;
+	default:
+		state = "unknown: assuming valid";
+		valid = true;
+		break;
+	}
+	pr_info("UV: TSC sync state from BIOS:0%d(%s)\n", sync_state, state);
+
+	/* Mark flag that says TSC != 0 is valid for socket 0 */
+	if (valid)
+		mark_tsc_async_resets("UV BIOS");
+	else
+		mark_tsc_unstable("UV BIOS");
+}
+
 /* [Copied from arch/x86/kernel/cpu/topology.c:detect_extended_topology()] */
 
 #define SMT_LEVEL			0	/* Leaf 0xb SMT level */
@@ -288,6 +330,7 @@ static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
 	}
 
 	pr_info("UV: OEM IDs %s/%s, System/HUB Types %d/%d, uv_apic %d\n", oem_id, oem_table_id, uv_system_type, uv_min_hub_revision_id, uv_apic);
+	uv_tsc_check_sync();
 
 	return uv_apic;
 
@@ -525,16 +568,9 @@ static void uv_init_apic_ldr(void)
 {
 }
 
-static int
-uv_cpu_mask_to_apicid(const struct cpumask *mask, struct irq_data *irqdata,
-		      unsigned int *apicid)
+static u32 apic_uv_calc_apicid(unsigned int cpu)
 {
-	int ret = default_cpu_mask_to_apicid(mask, irqdata, apicid);
-
-	if (!ret)
-		*apicid |= uv_apicid_hibits;
-
-	return ret;
+	return apic_default_calc_apicid(cpu) | uv_apicid_hibits;
 }
 
 static unsigned int x2apic_get_apic_id(unsigned long x)
@@ -547,7 +583,7 @@ static unsigned int x2apic_get_apic_id(unsigned long x)
 	return id;
 }
 
-static unsigned long set_apic_id(unsigned int id)
+static u32 set_apic_id(unsigned int id)
 {
 	/* CHECKME: Do we need to mask out the xapic extra bits? */
 	return id;
@@ -584,12 +620,10 @@ static struct apic apic_x2apic_uv_x __ro_after_init = {
 	.irq_delivery_mode		= dest_Fixed,
 	.irq_dest_mode			= 0, /* Physical */
 
-	.target_cpus			= online_target_cpus,
 	.disable_esr			= 0,
 	.dest_logical			= APIC_DEST_LOGICAL,
 	.check_apicid_used		= NULL,
 
-	.vector_allocation_domain	= default_vector_allocation_domain,
 	.init_apic_ldr			= uv_init_apic_ldr,
 
 	.ioapic_phys_id_map		= NULL,
@@ -602,7 +636,7 @@ static struct apic apic_x2apic_uv_x __ro_after_init = {
 	.get_apic_id			= x2apic_get_apic_id,
 	.set_apic_id			= set_apic_id,
 
-	.cpu_mask_to_apicid		= uv_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_uv_calc_apicid,
 
 	.send_IPI			= uv_send_IPI_one,
 	.send_IPI_mask			= uv_send_IPI_mask,
@@ -920,9 +954,8 @@ static __init void uv_rtc_init(void)
 /*
  * percpu heartbeat timer
  */
-static void uv_heartbeat(unsigned long ignored)
+static void uv_heartbeat(struct timer_list *timer)
 {
-	struct timer_list *timer = &uv_scir_info->timer;
 	unsigned char bits = uv_scir_info->state;
 
 	/* Flip heartbeat bit: */
@@ -947,7 +980,7 @@ static int uv_heartbeat_enable(unsigned int cpu)
 		struct timer_list *timer = &uv_cpu_scir_info(cpu)->timer;
 
 		uv_set_cpu_scir_bits(cpu, SCIR_CPU_HEARTBEAT|SCIR_CPU_ACTIVITY);
-		setup_pinned_timer(timer, uv_heartbeat, cpu);
+		timer_setup(timer, uv_heartbeat, TIMER_PINNED);
 		timer->expires = jiffies + SCIR_CPU_HB_INTERVAL;
 		add_timer_on(timer, cpu);
 		uv_cpu_scir_info(cpu)->enabled = 1;
diff --git a/arch/x86/kernel/apm_32.c b/arch/x86/kernel/apm_32.c
index 446b0d3d4932..e4b0d92b3ae0 100644
--- a/arch/x86/kernel/apm_32.c
+++ b/arch/x86/kernel/apm_32.c
@@ -2043,7 +2043,7 @@ static int __init swab_apm_power_in_minutes(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata apm_dmi_table[] = {
+static const struct dmi_system_id apm_dmi_table[] __initconst = {
 	{
 		print_if_true,
 		KERN_WARNING "IBM T23 - BIOS 1.03b+ and controller firmware 1.02+ may be needed for Linux APM.",
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index de827d6ac8c2..8ea78275480d 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by assembly language modules.
  * This code generates raw asm output which is post-processed to extract
diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c
index 710edab9e644..dedf428b20b6 100644
--- a/arch/x86/kernel/asm-offsets_32.c
+++ b/arch/x86/kernel/asm-offsets_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef __LINUX_KBUILD_H
 # error "Please do not build this file directly, build asm-offsets.c instead"
 #endif
diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c
index cf42206926af..630212fa9b9d 100644
--- a/arch/x86/kernel/asm-offsets_64.c
+++ b/arch/x86/kernel/asm-offsets_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef __LINUX_KBUILD_H
 # error "Please do not build this file directly, build asm-offsets.c instead"
 #endif
diff --git a/arch/x86/kernel/audit_64.c b/arch/x86/kernel/audit_64.c
index f3672508b249..e1efe44ebefc 100644
--- a/arch/x86/kernel/audit_64.c
+++ b/arch/x86/kernel/audit_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/arch/x86/kernel/bootflag.c b/arch/x86/kernel/bootflag.c
index 52c8e3c7789d..3fed7ae58b60 100644
--- a/arch/x86/kernel/bootflag.c
+++ b/arch/x86/kernel/bootflag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Implement 'Simple Boot Flag Specification 2.0'
  */
diff --git a/arch/x86/kernel/check.c b/arch/x86/kernel/check.c
index 145863d4d343..33399426793e 100644
--- a/arch/x86/kernel/check.c
+++ b/arch/x86/kernel/check.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/kthread.h>
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index e17942c131c8..90cb82dbba57 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for x86-compatible CPU details, features and quirks
 #
@@ -22,6 +23,7 @@ obj-y			+= rdrand.o
 obj-y			+= match.o
 obj-y			+= bugs.o
 obj-$(CONFIG_CPU_FREQ)	+= aperfmperf.o
+obj-y			+= cpuid-deps.o
 
 obj-$(CONFIG_PROC_FS)	+= proc.o
 obj-$(CONFIG_X86_FEATURE_NAMES) += capflags.o powerflags.o
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 9862e2cd6d93..d58184b7cd44 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -763,6 +763,16 @@ static void init_amd_bd(struct cpuinfo_x86 *c)
 	}
 }
 
+static void init_amd_zn(struct cpuinfo_x86 *c)
+{
+	/*
+	 * Fix erratum 1076: CPB feature bit not being set in CPUID. It affects
+	 * all up to and including B1.
+	 */
+	if (c->x86_model <= 1 && c->x86_mask <= 1)
+		set_cpu_cap(c, X86_FEATURE_CPB);
+}
+
 static void init_amd(struct cpuinfo_x86 *c)
 {
 	early_init_amd(c);
@@ -791,6 +801,7 @@ static void init_amd(struct cpuinfo_x86 *c)
 	case 0x10: init_amd_gh(c); break;
 	case 0x12: init_amd_ln(c); break;
 	case 0x15: init_amd_bd(c); break;
+	case 0x17: init_amd_zn(c); break;
 	}
 
 	/* Enable workaround for FXSAVE leak */
diff --git a/arch/x86/kernel/cpu/aperfmperf.c b/arch/x86/kernel/cpu/aperfmperf.c
index 0ee83321a313..957813e0180d 100644
--- a/arch/x86/kernel/cpu/aperfmperf.c
+++ b/arch/x86/kernel/cpu/aperfmperf.c
@@ -42,10 +42,6 @@ static void aperfmperf_snapshot_khz(void *dummy)
 	s64 time_delta = ktime_ms_delta(now, s->time);
 	unsigned long flags;
 
-	/* Don't bother re-computing within the cache threshold time. */
-	if (time_delta < APERFMPERF_CACHE_THRESHOLD_MS)
-		return;
-
 	local_irq_save(flags);
 	rdmsrl(MSR_IA32_APERF, aperf);
 	rdmsrl(MSR_IA32_MPERF, mperf);
@@ -74,6 +70,7 @@ static void aperfmperf_snapshot_khz(void *dummy)
 
 unsigned int arch_freq_get_on_cpu(int cpu)
 {
+	s64 time_delta;
 	unsigned int khz;
 
 	if (!cpu_khz)
@@ -82,6 +79,12 @@ unsigned int arch_freq_get_on_cpu(int cpu)
 	if (!static_cpu_has(X86_FEATURE_APERFMPERF))
 		return 0;
 
+	/* Don't bother re-computing within the cache threshold time. */
+	time_delta = ktime_ms_delta(ktime_get(), per_cpu(samples.time, cpu));
+	khz = per_cpu(samples.khz, cpu);
+	if (khz && time_delta < APERFMPERF_CACHE_THRESHOLD_MS)
+		return khz;
+
 	smp_call_function_single(cpu, aperfmperf_snapshot_khz, NULL, 1);
 	khz = per_cpu(samples.khz, cpu);
 	if (khz)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index db684880d74a..ba0b2424c9b0 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1994  Linus Torvalds
  *
@@ -21,14 +22,6 @@
 
 void __init check_bugs(void)
 {
-#ifdef CONFIG_X86_32
-	/*
-	 * Regardless of whether PCID is enumerated, the SDM says
-	 * that it can't be enabled in 32-bit mode.
-	 */
-	setup_clear_cpu_cap(X86_FEATURE_PCID);
-#endif
-
 	identify_boot_cpu();
 
 	if (!IS_ENABLED(CONFIG_SMP)) {
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index 44207b71fee1..68bc6d9b3132 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index fb1d3358a4af..13ae9e5eec2f 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -169,21 +169,21 @@ static int __init x86_mpx_setup(char *s)
 __setup("nompx", x86_mpx_setup);
 
 #ifdef CONFIG_X86_64
-static int __init x86_pcid_setup(char *s)
+static int __init x86_nopcid_setup(char *s)
 {
-	/* require an exact match without trailing characters */
-	if (strlen(s))
-		return 0;
+	/* nopcid doesn't accept parameters */
+	if (s)
+		return -EINVAL;
 
 	/* do not emit a message if the feature is not present */
 	if (!boot_cpu_has(X86_FEATURE_PCID))
-		return 1;
+		return 0;
 
 	setup_clear_cpu_cap(X86_FEATURE_PCID);
 	pr_info("nopcid: PCID feature disabled\n");
-	return 1;
+	return 0;
 }
-__setup("nopcid", x86_pcid_setup);
+early_param("nopcid", x86_nopcid_setup);
 #endif
 
 static int __init x86_noinvpcid_setup(char *s)
@@ -329,36 +329,26 @@ static __always_inline void setup_smap(struct cpuinfo_x86 *c)
 	}
 }
 
-static void setup_pcid(struct cpuinfo_x86 *c)
+static __always_inline void setup_umip(struct cpuinfo_x86 *c)
 {
-	if (cpu_has(c, X86_FEATURE_PCID)) {
-		if (cpu_has(c, X86_FEATURE_PGE)) {
-			/*
-			 * We'd like to use cr4_set_bits_and_update_boot(),
-			 * but we can't.  CR4.PCIDE is special and can only
-			 * be set in long mode, and the early CPU init code
-			 * doesn't know this and would try to restore CR4.PCIDE
-			 * prior to entering long mode.
-			 *
-			 * Instead, we rely on the fact that hotplug, resume,
-			 * etc all fully restore CR4 before they write anything
-			 * that could have nonzero PCID bits to CR3.  CR4.PCIDE
-			 * has no effect on the page tables themselves, so we
-			 * don't need it to be restored early.
-			 */
-			cr4_set_bits(X86_CR4_PCIDE);
-		} else {
-			/*
-			 * flush_tlb_all(), as currently implemented, won't
-			 * work if PCID is on but PGE is not.  Since that
-			 * combination doesn't exist on real hardware, there's
-			 * no reason to try to fully support it, but it's
-			 * polite to avoid corrupting data if we're on
-			 * an improperly configured VM.
-			 */
-			clear_cpu_cap(c, X86_FEATURE_PCID);
-		}
-	}
+	/* Check the boot processor, plus build option for UMIP. */
+	if (!cpu_feature_enabled(X86_FEATURE_UMIP))
+		goto out;
+
+	/* Check the current processor's cpuid bits. */
+	if (!cpu_has(c, X86_FEATURE_UMIP))
+		goto out;
+
+	cr4_set_bits(X86_CR4_UMIP);
+
+	return;
+
+out:
+	/*
+	 * Make sure UMIP is disabled in case it was enabled in a
+	 * previous boot (e.g., via kexec).
+	 */
+	cr4_clear_bits(X86_CR4_UMIP);
 }
 
 /*
@@ -895,8 +885,8 @@ static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
  * cache alignment.
  * The others are not touched to avoid unwanted side effects.
  *
- * WARNING: this function is only called on the BP.  Don't add code here
- * that is supposed to run on all CPUs.
+ * WARNING: this function is only called on the boot CPU.  Don't add code
+ * here that is supposed to run on all CPUs.
  */
 static void __init early_identify_cpu(struct cpuinfo_x86 *c)
 {
@@ -936,6 +926,14 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c)
 
 	setup_force_cpu_cap(X86_FEATURE_ALWAYS);
 	fpu__init_system(c);
+
+#ifdef CONFIG_X86_32
+	/*
+	 * Regardless of whether PCID is enumerated, the SDM says
+	 * that it can't be enabled in 32-bit mode.
+	 */
+	setup_clear_cpu_cap(X86_FEATURE_PCID);
+#endif
 }
 
 void __init early_cpu_init(void)
@@ -1171,12 +1169,10 @@ static void identify_cpu(struct cpuinfo_x86 *c)
 	/* Disable the PN if appropriate */
 	squash_the_stupid_serial_number(c);
 
-	/* Set up SMEP/SMAP */
+	/* Set up SMEP/SMAP/UMIP */
 	setup_smep(c);
 	setup_smap(c);
-
-	/* Set up PCID */
-	setup_pcid(c);
+	setup_umip(c);
 
 	/*
 	 * The vendor-specific functions might have changed features.
@@ -1328,18 +1324,16 @@ void print_cpu_info(struct cpuinfo_x86 *c)
 		pr_cont(")\n");
 }
 
-static __init int setup_disablecpuid(char *arg)
+/*
+ * clearcpuid= was already parsed in fpu__init_parse_early_param.
+ * But we need to keep a dummy __setup around otherwise it would
+ * show up as an environment variable for init.
+ */
+static __init int setup_clearcpuid(char *arg)
 {
-	int bit;
-
-	if (get_option(&arg, &bit) && bit >= 0 && bit < NCAPINTS * 32)
-		setup_clear_cpu_cap(bit);
-	else
-		return 0;
-
 	return 1;
 }
-__setup("clearcpuid=", setup_disablecpuid);
+__setup("clearcpuid=", setup_clearcpuid);
 
 #ifdef CONFIG_X86_64
 DEFINE_PER_CPU_FIRST(union irq_stack_union,
@@ -1599,9 +1593,13 @@ void cpu_init(void)
 	initialize_tlbstate_and_flush();
 	enter_lazy_tlb(&init_mm, me);
 
-	load_sp0(t, &current->thread);
+	/*
+	 * Initialize the TSS.  Don't bother initializing sp0, as the initial
+	 * task never enters user mode.
+	 */
 	set_tss_desc(cpu, t);
 	load_TR_desc();
+
 	load_mm_ldt(&init_mm);
 
 	clear_all_debug_regs();
@@ -1623,7 +1621,6 @@ void cpu_init(void)
 	int cpu = smp_processor_id();
 	struct task_struct *curr = current;
 	struct tss_struct *t = &per_cpu(cpu_tss, cpu);
-	struct thread_struct *thread = &curr->thread;
 
 	wait_for_master_cpu(cpu);
 
@@ -1654,9 +1651,13 @@ void cpu_init(void)
 	initialize_tlbstate_and_flush();
 	enter_lazy_tlb(&init_mm, curr);
 
-	load_sp0(t, thread);
+	/*
+	 * Initialize the TSS.  Don't bother initializing sp0, as the initial
+	 * task never enters user mode.
+	 */
 	set_tss_desc(cpu, t);
 	load_TR_desc();
+
 	load_mm_ldt(&init_mm);
 
 	t->x86_tss.io_bitmap_base = offsetof(struct tss_struct, io_bitmap);
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index 2584265d4745..f52a370b6c00 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_X86_CPU_H
 #define ARCH_X86_CPU_H
 
diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c
new file mode 100644
index 000000000000..904b0a3c4e53
--- /dev/null
+++ b/arch/x86/kernel/cpu/cpuid-deps.c
@@ -0,0 +1,121 @@
+/* Declare dependencies between CPUIDs */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <asm/cpufeature.h>
+
+struct cpuid_dep {
+	unsigned int	feature;
+	unsigned int	depends;
+};
+
+/*
+ * Table of CPUID features that depend on others.
+ *
+ * This only includes dependencies that can be usefully disabled, not
+ * features part of the base set (like FPU).
+ *
+ * Note this all is not __init / __initdata because it can be
+ * called from cpu hotplug. It shouldn't do anything in this case,
+ * but it's difficult to tell that to the init reference checker.
+ */
+const static struct cpuid_dep cpuid_deps[] = {
+	{ X86_FEATURE_XSAVEOPT,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_XSAVEC,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_XSAVES,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_AVX,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_PKU,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_MPX,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_XGETBV1,		X86_FEATURE_XSAVE     },
+	{ X86_FEATURE_FXSR_OPT,		X86_FEATURE_FXSR      },
+	{ X86_FEATURE_XMM,		X86_FEATURE_FXSR      },
+	{ X86_FEATURE_XMM2,		X86_FEATURE_XMM       },
+	{ X86_FEATURE_XMM3,		X86_FEATURE_XMM2      },
+	{ X86_FEATURE_XMM4_1,		X86_FEATURE_XMM2      },
+	{ X86_FEATURE_XMM4_2,		X86_FEATURE_XMM2      },
+	{ X86_FEATURE_XMM3,		X86_FEATURE_XMM2      },
+	{ X86_FEATURE_PCLMULQDQ,	X86_FEATURE_XMM2      },
+	{ X86_FEATURE_SSSE3,		X86_FEATURE_XMM2,     },
+	{ X86_FEATURE_F16C,		X86_FEATURE_XMM2,     },
+	{ X86_FEATURE_AES,		X86_FEATURE_XMM2      },
+	{ X86_FEATURE_SHA_NI,		X86_FEATURE_XMM2      },
+	{ X86_FEATURE_FMA,		X86_FEATURE_AVX       },
+	{ X86_FEATURE_AVX2,		X86_FEATURE_AVX,      },
+	{ X86_FEATURE_AVX512F,		X86_FEATURE_AVX,      },
+	{ X86_FEATURE_AVX512IFMA,	X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512PF,		X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512ER,		X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512CD,		X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512DQ,		X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512BW,		X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512VL,		X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512VBMI,	X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512_VBMI2,	X86_FEATURE_AVX512VL  },
+	{ X86_FEATURE_GFNI,		X86_FEATURE_AVX512VL  },
+	{ X86_FEATURE_VAES,		X86_FEATURE_AVX512VL  },
+	{ X86_FEATURE_VPCLMULQDQ,	X86_FEATURE_AVX512VL  },
+	{ X86_FEATURE_AVX512_VNNI,	X86_FEATURE_AVX512VL  },
+	{ X86_FEATURE_AVX512_BITALG,	X86_FEATURE_AVX512VL  },
+	{ X86_FEATURE_AVX512_4VNNIW,	X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512_4FMAPS,	X86_FEATURE_AVX512F   },
+	{ X86_FEATURE_AVX512_VPOPCNTDQ, X86_FEATURE_AVX512F   },
+	{}
+};
+
+static inline void clear_feature(struct cpuinfo_x86 *c, unsigned int feature)
+{
+	/*
+	 * Note: This could use the non atomic __*_bit() variants, but the
+	 * rest of the cpufeature code uses atomics as well, so keep it for
+	 * consistency. Cleanup all of it separately.
+	 */
+	if (!c) {
+		clear_cpu_cap(&boot_cpu_data, feature);
+		set_bit(feature, (unsigned long *)cpu_caps_cleared);
+	} else {
+		clear_bit(feature, (unsigned long *)c->x86_capability);
+	}
+}
+
+/* Take the capabilities and the BUG bits into account */
+#define MAX_FEATURE_BITS ((NCAPINTS + NBUGINTS) * sizeof(u32) * 8)
+
+static void do_clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int feature)
+{
+	DECLARE_BITMAP(disable, MAX_FEATURE_BITS);
+	const struct cpuid_dep *d;
+	bool changed;
+
+	if (WARN_ON(feature >= MAX_FEATURE_BITS))
+		return;
+
+	clear_feature(c, feature);
+
+	/* Collect all features to disable, handling dependencies */
+	memset(disable, 0, sizeof(disable));
+	__set_bit(feature, disable);
+
+	/* Loop until we get a stable state. */
+	do {
+		changed = false;
+		for (d = cpuid_deps; d->feature; d++) {
+			if (!test_bit(d->depends, disable))
+				continue;
+			if (__test_and_set_bit(d->feature, disable))
+				continue;
+
+			changed = true;
+			clear_feature(c, d->feature);
+		}
+	} while (changed);
+}
+
+void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int feature)
+{
+	do_clear_cpu_cap(c, feature);
+}
+
+void setup_clear_cpu_cap(unsigned int feature)
+{
+	do_clear_cpu_cap(NULL, feature);
+}
diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 6f077445647a..6b4bb335641f 100644
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/delay.h>
 #include <linux/pci.h>
diff --git a/arch/x86/kernel/cpu/hypervisor.c b/arch/x86/kernel/cpu/hypervisor.c
index 4fa90006ac68..bea8d3e24f50 100644
--- a/arch/x86/kernel/cpu/hypervisor.c
+++ b/arch/x86/kernel/cpu/hypervisor.c
@@ -26,6 +26,12 @@
 #include <asm/processor.h>
 #include <asm/hypervisor.h>
 
+extern const struct hypervisor_x86 x86_hyper_vmware;
+extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
+extern const struct hypervisor_x86 x86_hyper_xen_pv;
+extern const struct hypervisor_x86 x86_hyper_xen_hvm;
+extern const struct hypervisor_x86 x86_hyper_kvm;
+
 static const __initconst struct hypervisor_x86 * const hypervisors[] =
 {
 #ifdef CONFIG_XEN_PV
@@ -41,54 +47,52 @@ static const __initconst struct hypervisor_x86 * const hypervisors[] =
 #endif
 };
 
-const struct hypervisor_x86 *x86_hyper;
-EXPORT_SYMBOL(x86_hyper);
+enum x86_hypervisor_type x86_hyper_type;
+EXPORT_SYMBOL(x86_hyper_type);
 
-static inline void __init
+static inline const struct hypervisor_x86 * __init
 detect_hypervisor_vendor(void)
 {
-	const struct hypervisor_x86 *h, * const *p;
+	const struct hypervisor_x86 *h = NULL, * const *p;
 	uint32_t pri, max_pri = 0;
 
 	for (p = hypervisors; p < hypervisors + ARRAY_SIZE(hypervisors); p++) {
-		h = *p;
-		pri = h->detect();
-		if (pri != 0 && pri > max_pri) {
+		pri = (*p)->detect();
+		if (pri > max_pri) {
 			max_pri = pri;
-			x86_hyper = h;
+			h = *p;
 		}
 	}
 
-	if (max_pri)
-		pr_info("Hypervisor detected: %s\n", x86_hyper->name);
+	if (h)
+		pr_info("Hypervisor detected: %s\n", h->name);
+
+	return h;
 }
 
-void __init init_hypervisor_platform(void)
+static void __init copy_array(const void *src, void *target, unsigned int size)
 {
+	unsigned int i, n = size / sizeof(void *);
+	const void * const *from = (const void * const *)src;
+	const void **to = (const void **)target;
 
-	detect_hypervisor_vendor();
-
-	if (!x86_hyper)
-		return;
-
-	if (x86_hyper->init_platform)
-		x86_hyper->init_platform();
+	for (i = 0; i < n; i++)
+		if (from[i])
+			to[i] = from[i];
 }
 
-bool __init hypervisor_x2apic_available(void)
+void __init init_hypervisor_platform(void)
 {
-	return x86_hyper                   &&
-	       x86_hyper->x2apic_available &&
-	       x86_hyper->x2apic_available();
-}
+	const struct hypervisor_x86 *h;
 
-void hypervisor_pin_vcpu(int cpu)
-{
-	if (!x86_hyper)
+	h = detect_hypervisor_vendor();
+
+	if (!h)
 		return;
 
-	if (x86_hyper->pin_vcpu)
-		x86_hyper->pin_vcpu(cpu);
-	else
-		WARN_ONCE(1, "vcpu pinning requested but not supported!\n");
+	copy_array(&h->init, &x86_init.hyper, sizeof(h->init));
+	copy_array(&h->runtime, &x86_platform.hyper, sizeof(h->runtime));
+
+	x86_hyper_type = h->type;
+	x86_init.hyper.init_platform();
 }
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index dfa90a3a5145..b720dacac051 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 
 #include <linux/string.h>
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 24f749324c0f..54d04d574148 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Routines to identify caches on Intel CPU.
  *
@@ -831,7 +832,6 @@ static int __cache_amd_cpumap_setup(unsigned int cpu, int index,
 	} else if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
 		unsigned int apicid, nshared, first, last;
 
-		this_leaf = this_cpu_ci->info_list + index;
 		nshared = base->eax.split.num_threads_sharing + 1;
 		apicid = cpu_data(cpu).apicid;
 		first = apicid - (apicid % nshared);
diff --git a/arch/x86/kernel/cpu/intel_rdt.c b/arch/x86/kernel/cpu/intel_rdt.c
index cd5fc61ba450..88dcf8479013 100644
--- a/arch/x86/kernel/cpu/intel_rdt.c
+++ b/arch/x86/kernel/cpu/intel_rdt.c
@@ -267,6 +267,7 @@ static void rdt_get_cdp_l3_config(int type)
 	r->num_closid = r_l3->num_closid / 2;
 	r->cache.cbm_len = r_l3->cache.cbm_len;
 	r->default_ctrl = r_l3->default_ctrl;
+	r->cache.shareable_bits = r_l3->cache.shareable_bits;
 	r->data_width = (r->cache.cbm_len + 3) / 4;
 	r->alloc_capable = true;
 	/*
diff --git a/arch/x86/kernel/cpu/intel_rdt.h b/arch/x86/kernel/cpu/intel_rdt.h
index ebaddaeef023..3397244984f5 100644
--- a/arch/x86/kernel/cpu/intel_rdt.h
+++ b/arch/x86/kernel/cpu/intel_rdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_INTEL_RDT_H
 #define _ASM_X86_INTEL_RDT_H
 
@@ -126,12 +127,15 @@ struct rdtgroup {
 #define RFTYPE_BASE			BIT(1)
 #define RF_CTRLSHIFT			4
 #define RF_MONSHIFT			5
+#define RF_TOPSHIFT			6
 #define RFTYPE_CTRL			BIT(RF_CTRLSHIFT)
 #define RFTYPE_MON			BIT(RF_MONSHIFT)
+#define RFTYPE_TOP			BIT(RF_TOPSHIFT)
 #define RFTYPE_RES_CACHE		BIT(8)
 #define RFTYPE_RES_MB			BIT(9)
 #define RF_CTRL_INFO			(RFTYPE_INFO | RFTYPE_CTRL)
 #define RF_MON_INFO			(RFTYPE_INFO | RFTYPE_MON)
+#define RF_TOP_INFO			(RFTYPE_INFO | RFTYPE_TOP)
 #define RF_CTRL_BASE			(RFTYPE_BASE | RFTYPE_CTRL)
 
 /* List of all resource groups */
@@ -408,6 +412,10 @@ union cpuid_0x10_x_edx {
 	unsigned int full;
 };
 
+void rdt_last_cmd_clear(void);
+void rdt_last_cmd_puts(const char *s);
+void rdt_last_cmd_printf(const char *fmt, ...);
+
 void rdt_ctrl_update(void *arg);
 struct rdtgroup *rdtgroup_kn_lock_live(struct kernfs_node *kn);
 void rdtgroup_kn_unlock(struct kernfs_node *kn);
diff --git a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
index f6ea94f8954a..23e1d5c249c6 100644
--- a/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
+++ b/arch/x86/kernel/cpu/intel_rdt_ctrlmondata.c
@@ -42,15 +42,22 @@ static bool bw_validate(char *buf, unsigned long *data, struct rdt_resource *r)
 	/*
 	 * Only linear delay values is supported for current Intel SKUs.
 	 */
-	if (!r->membw.delay_linear)
+	if (!r->membw.delay_linear) {
+		rdt_last_cmd_puts("No support for non-linear MB domains\n");
 		return false;
+	}
 
 	ret = kstrtoul(buf, 10, &bw);
-	if (ret)
+	if (ret) {
+		rdt_last_cmd_printf("Non-decimal digit in MB value %s\n", buf);
 		return false;
+	}
 
-	if (bw < r->membw.min_bw || bw > r->default_ctrl)
+	if (bw < r->membw.min_bw || bw > r->default_ctrl) {
+		rdt_last_cmd_printf("MB value %ld out of range [%d,%d]\n", bw,
+				    r->membw.min_bw, r->default_ctrl);
 		return false;
+	}
 
 	*data = roundup(bw, (unsigned long)r->membw.bw_gran);
 	return true;
@@ -60,8 +67,10 @@ int parse_bw(char *buf, struct rdt_resource *r, struct rdt_domain *d)
 {
 	unsigned long data;
 
-	if (d->have_new_ctrl)
+	if (d->have_new_ctrl) {
+		rdt_last_cmd_printf("duplicate domain %d\n", d->id);
 		return -EINVAL;
+	}
 
 	if (!bw_validate(buf, &data, r))
 		return -EINVAL;
@@ -84,20 +93,29 @@ static bool cbm_validate(char *buf, unsigned long *data, struct rdt_resource *r)
 	int ret;
 
 	ret = kstrtoul(buf, 16, &val);
-	if (ret)
+	if (ret) {
+		rdt_last_cmd_printf("non-hex character in mask %s\n", buf);
 		return false;
+	}
 
-	if (val == 0 || val > r->default_ctrl)
+	if (val == 0 || val > r->default_ctrl) {
+		rdt_last_cmd_puts("mask out of range\n");
 		return false;
+	}
 
 	first_bit = find_first_bit(&val, cbm_len);
 	zero_bit = find_next_zero_bit(&val, cbm_len, first_bit);
 
-	if (find_next_bit(&val, cbm_len, zero_bit) < cbm_len)
+	if (find_next_bit(&val, cbm_len, zero_bit) < cbm_len) {
+		rdt_last_cmd_printf("mask %lx has non-consecutive 1-bits\n", val);
 		return false;
+	}
 
-	if ((zero_bit - first_bit) < r->cache.min_cbm_bits)
+	if ((zero_bit - first_bit) < r->cache.min_cbm_bits) {
+		rdt_last_cmd_printf("Need at least %d bits in mask\n",
+				    r->cache.min_cbm_bits);
 		return false;
+	}
 
 	*data = val;
 	return true;
@@ -111,8 +129,10 @@ int parse_cbm(char *buf, struct rdt_resource *r, struct rdt_domain *d)
 {
 	unsigned long data;
 
-	if (d->have_new_ctrl)
+	if (d->have_new_ctrl) {
+		rdt_last_cmd_printf("duplicate domain %d\n", d->id);
 		return -EINVAL;
+	}
 
 	if(!cbm_validate(buf, &data, r))
 		return -EINVAL;
@@ -139,8 +159,10 @@ next:
 		return 0;
 	dom = strsep(&line, ";");
 	id = strsep(&dom, "=");
-	if (!dom || kstrtoul(id, 10, &dom_id))
+	if (!dom || kstrtoul(id, 10, &dom_id)) {
+		rdt_last_cmd_puts("Missing '=' or non-numeric domain\n");
 		return -EINVAL;
+	}
 	dom = strim(dom);
 	list_for_each_entry(d, &r->domains, list) {
 		if (d->id == dom_id) {
@@ -196,6 +218,7 @@ static int rdtgroup_parse_resource(char *resname, char *tok, int closid)
 		if (!strcmp(resname, r->name) && closid < r->num_closid)
 			return parse_line(tok, r);
 	}
+	rdt_last_cmd_printf("unknown/unsupported resource name '%s'\n", resname);
 	return -EINVAL;
 }
 
@@ -218,6 +241,7 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
 		rdtgroup_kn_unlock(of->kn);
 		return -ENOENT;
 	}
+	rdt_last_cmd_clear();
 
 	closid = rdtgrp->closid;
 
@@ -229,6 +253,12 @@ ssize_t rdtgroup_schemata_write(struct kernfs_open_file *of,
 	while ((tok = strsep(&buf, "\n")) != NULL) {
 		resname = strim(strsep(&tok, ":"));
 		if (!tok) {
+			rdt_last_cmd_puts("Missing ':'\n");
+			ret = -EINVAL;
+			goto out;
+		}
+		if (tok[0] == '\0') {
+			rdt_last_cmd_printf("Missing '%s' value\n", resname);
 			ret = -EINVAL;
 			goto out;
 		}
diff --git a/arch/x86/kernel/cpu/intel_rdt_monitor.c b/arch/x86/kernel/cpu/intel_rdt_monitor.c
index 30827510094b..681450eee428 100644
--- a/arch/x86/kernel/cpu/intel_rdt_monitor.c
+++ b/arch/x86/kernel/cpu/intel_rdt_monitor.c
@@ -51,7 +51,7 @@ static LIST_HEAD(rmid_free_lru);
  *     may have a occupancy value > intel_cqm_threshold. User can change
  *     the threshold occupancy value.
  */
-unsigned int rmid_limbo_count;
+static unsigned int rmid_limbo_count;
 
 /**
  * @rmid_entry - The entry in the limbo and free lists.
diff --git a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
index a869d4a073c5..64c5ff97ee0d 100644
--- a/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
+++ b/arch/x86/kernel/cpu/intel_rdt_rdtgroup.c
@@ -24,6 +24,7 @@
 #include <linux/fs.h>
 #include <linux/sysfs.h>
 #include <linux/kernfs.h>
+#include <linux/seq_buf.h>
 #include <linux/seq_file.h>
 #include <linux/sched/signal.h>
 #include <linux/sched/task.h>
@@ -51,6 +52,31 @@ static struct kernfs_node *kn_mongrp;
 /* Kernel fs node for "mon_data" directory under root */
 static struct kernfs_node *kn_mondata;
 
+static struct seq_buf last_cmd_status;
+static char last_cmd_status_buf[512];
+
+void rdt_last_cmd_clear(void)
+{
+	lockdep_assert_held(&rdtgroup_mutex);
+	seq_buf_clear(&last_cmd_status);
+}
+
+void rdt_last_cmd_puts(const char *s)
+{
+	lockdep_assert_held(&rdtgroup_mutex);
+	seq_buf_puts(&last_cmd_status, s);
+}
+
+void rdt_last_cmd_printf(const char *fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, fmt);
+	lockdep_assert_held(&rdtgroup_mutex);
+	seq_buf_vprintf(&last_cmd_status, fmt, ap);
+	va_end(ap);
+}
+
 /*
  * Trivial allocator for CLOSIDs. Since h/w only supports a small number,
  * we can keep a bitmap of free CLOSIDs in a single integer.
@@ -238,8 +264,10 @@ static int cpus_mon_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask,
 
 	/* Check whether cpus belong to parent ctrl group */
 	cpumask_andnot(tmpmask, newmask, &prgrp->cpu_mask);
-	if (cpumask_weight(tmpmask))
+	if (cpumask_weight(tmpmask)) {
+		rdt_last_cmd_puts("can only add CPUs to mongroup that belong to parent\n");
 		return -EINVAL;
+	}
 
 	/* Check whether cpus are dropped from this group */
 	cpumask_andnot(tmpmask, &rdtgrp->cpu_mask, newmask);
@@ -291,8 +319,10 @@ static int cpus_ctrl_write(struct rdtgroup *rdtgrp, cpumask_var_t newmask,
 	cpumask_andnot(tmpmask, &rdtgrp->cpu_mask, newmask);
 	if (cpumask_weight(tmpmask)) {
 		/* Can't drop from default group */
-		if (rdtgrp == &rdtgroup_default)
+		if (rdtgrp == &rdtgroup_default) {
+			rdt_last_cmd_puts("Can't drop CPUs from default group\n");
 			return -EINVAL;
+		}
 
 		/* Give any dropped cpus to rdtgroup_default */
 		cpumask_or(&rdtgroup_default.cpu_mask,
@@ -357,8 +387,10 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
 	}
 
 	rdtgrp = rdtgroup_kn_lock_live(of->kn);
+	rdt_last_cmd_clear();
 	if (!rdtgrp) {
 		ret = -ENOENT;
+		rdt_last_cmd_puts("directory was removed\n");
 		goto unlock;
 	}
 
@@ -367,13 +399,16 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
 	else
 		ret = cpumask_parse(buf, newmask);
 
-	if (ret)
+	if (ret) {
+		rdt_last_cmd_puts("bad cpu list/mask\n");
 		goto unlock;
+	}
 
 	/* check that user didn't specify any offline cpus */
 	cpumask_andnot(tmpmask, newmask, cpu_online_mask);
 	if (cpumask_weight(tmpmask)) {
 		ret = -EINVAL;
+		rdt_last_cmd_puts("can only assign online cpus\n");
 		goto unlock;
 	}
 
@@ -452,6 +487,7 @@ static int __rdtgroup_move_task(struct task_struct *tsk,
 		 */
 		atomic_dec(&rdtgrp->waitcount);
 		kfree(callback);
+		rdt_last_cmd_puts("task exited\n");
 	} else {
 		/*
 		 * For ctrl_mon groups move both closid and rmid.
@@ -462,10 +498,12 @@ static int __rdtgroup_move_task(struct task_struct *tsk,
 			tsk->closid = rdtgrp->closid;
 			tsk->rmid = rdtgrp->mon.rmid;
 		} else if (rdtgrp->type == RDTMON_GROUP) {
-			if (rdtgrp->mon.parent->closid == tsk->closid)
+			if (rdtgrp->mon.parent->closid == tsk->closid) {
 				tsk->rmid = rdtgrp->mon.rmid;
-			else
+			} else {
+				rdt_last_cmd_puts("Can't move task to different control group\n");
 				ret = -EINVAL;
+			}
 		}
 	}
 	return ret;
@@ -484,8 +522,10 @@ static int rdtgroup_task_write_permission(struct task_struct *task,
 	 */
 	if (!uid_eq(cred->euid, GLOBAL_ROOT_UID) &&
 	    !uid_eq(cred->euid, tcred->uid) &&
-	    !uid_eq(cred->euid, tcred->suid))
+	    !uid_eq(cred->euid, tcred->suid)) {
+		rdt_last_cmd_printf("No permission to move task %d\n", task->pid);
 		ret = -EPERM;
+	}
 
 	put_cred(tcred);
 	return ret;
@@ -502,6 +542,7 @@ static int rdtgroup_move_task(pid_t pid, struct rdtgroup *rdtgrp,
 		tsk = find_task_by_vpid(pid);
 		if (!tsk) {
 			rcu_read_unlock();
+			rdt_last_cmd_printf("No task %d\n", pid);
 			return -ESRCH;
 		}
 	} else {
@@ -529,6 +570,7 @@ static ssize_t rdtgroup_tasks_write(struct kernfs_open_file *of,
 	if (kstrtoint(strstrip(buf), 0, &pid) || pid < 0)
 		return -EINVAL;
 	rdtgrp = rdtgroup_kn_lock_live(of->kn);
+	rdt_last_cmd_clear();
 
 	if (rdtgrp)
 		ret = rdtgroup_move_task(pid, rdtgrp, of);
@@ -569,6 +611,21 @@ static int rdtgroup_tasks_show(struct kernfs_open_file *of,
 	return ret;
 }
 
+static int rdt_last_cmd_status_show(struct kernfs_open_file *of,
+				    struct seq_file *seq, void *v)
+{
+	int len;
+
+	mutex_lock(&rdtgroup_mutex);
+	len = seq_buf_used(&last_cmd_status);
+	if (len)
+		seq_printf(seq, "%.*s", len, last_cmd_status_buf);
+	else
+		seq_puts(seq, "ok\n");
+	mutex_unlock(&rdtgroup_mutex);
+	return 0;
+}
+
 static int rdt_num_closids_show(struct kernfs_open_file *of,
 				struct seq_file *seq, void *v)
 {
@@ -686,6 +743,13 @@ static ssize_t max_threshold_occ_write(struct kernfs_open_file *of,
 /* rdtgroup information files for one cache resource. */
 static struct rftype res_common_files[] = {
 	{
+		.name		= "last_cmd_status",
+		.mode		= 0444,
+		.kf_ops		= &rdtgroup_kf_single_ops,
+		.seq_show	= rdt_last_cmd_status_show,
+		.fflags		= RF_TOP_INFO,
+	},
+	{
 		.name		= "num_closids",
 		.mode		= 0444,
 		.kf_ops		= &rdtgroup_kf_single_ops,
@@ -855,6 +919,10 @@ static int rdtgroup_create_info_dir(struct kernfs_node *parent_kn)
 		return PTR_ERR(kn_info);
 	kernfs_get(kn_info);
 
+	ret = rdtgroup_add_files(kn_info, RF_TOP_INFO);
+	if (ret)
+		goto out_destroy;
+
 	for_each_alloc_enabled_rdt_resource(r) {
 		fflags =  r->fflags | RF_CTRL_INFO;
 		ret = rdtgroup_mkdir_info_resdir(r, r->name, fflags);
@@ -1081,6 +1149,7 @@ static struct dentry *rdt_mount(struct file_system_type *fs_type,
 	struct dentry *dentry;
 	int ret;
 
+	cpus_read_lock();
 	mutex_lock(&rdtgroup_mutex);
 	/*
 	 * resctrl file system can only be mounted once.
@@ -1130,12 +1199,12 @@ static struct dentry *rdt_mount(struct file_system_type *fs_type,
 		goto out_mondata;
 
 	if (rdt_alloc_capable)
-		static_branch_enable(&rdt_alloc_enable_key);
+		static_branch_enable_cpuslocked(&rdt_alloc_enable_key);
 	if (rdt_mon_capable)
-		static_branch_enable(&rdt_mon_enable_key);
+		static_branch_enable_cpuslocked(&rdt_mon_enable_key);
 
 	if (rdt_alloc_capable || rdt_mon_capable)
-		static_branch_enable(&rdt_enable_key);
+		static_branch_enable_cpuslocked(&rdt_enable_key);
 
 	if (is_mbm_enabled()) {
 		r = &rdt_resources_all[RDT_RESOURCE_L3];
@@ -1156,7 +1225,9 @@ out_info:
 out_cdp:
 	cdp_disable();
 out:
+	rdt_last_cmd_clear();
 	mutex_unlock(&rdtgroup_mutex);
+	cpus_read_unlock();
 
 	return dentry;
 }
@@ -1295,9 +1366,7 @@ static void rmdir_all_sub(void)
 		kfree(rdtgrp);
 	}
 	/* Notify online CPUs to update per cpu storage and PQR_ASSOC MSR */
-	get_online_cpus();
 	update_closid_rmid(cpu_online_mask, &rdtgroup_default);
-	put_online_cpus();
 
 	kernfs_remove(kn_info);
 	kernfs_remove(kn_mongrp);
@@ -1308,6 +1377,7 @@ static void rdt_kill_sb(struct super_block *sb)
 {
 	struct rdt_resource *r;
 
+	cpus_read_lock();
 	mutex_lock(&rdtgroup_mutex);
 
 	/*Put everything back to default values. */
@@ -1315,11 +1385,12 @@ static void rdt_kill_sb(struct super_block *sb)
 		reset_all_ctrls(r);
 	cdp_disable();
 	rmdir_all_sub();
-	static_branch_disable(&rdt_alloc_enable_key);
-	static_branch_disable(&rdt_mon_enable_key);
-	static_branch_disable(&rdt_enable_key);
+	static_branch_disable_cpuslocked(&rdt_alloc_enable_key);
+	static_branch_disable_cpuslocked(&rdt_mon_enable_key);
+	static_branch_disable_cpuslocked(&rdt_enable_key);
 	kernfs_kill_sb(sb);
 	mutex_unlock(&rdtgroup_mutex);
+	cpus_read_unlock();
 }
 
 static struct file_system_type rdt_fs_type = {
@@ -1524,8 +1595,10 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
 	int ret;
 
 	prdtgrp = rdtgroup_kn_lock_live(prgrp_kn);
+	rdt_last_cmd_clear();
 	if (!prdtgrp) {
 		ret = -ENODEV;
+		rdt_last_cmd_puts("directory was removed\n");
 		goto out_unlock;
 	}
 
@@ -1533,6 +1606,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
 	rdtgrp = kzalloc(sizeof(*rdtgrp), GFP_KERNEL);
 	if (!rdtgrp) {
 		ret = -ENOSPC;
+		rdt_last_cmd_puts("kernel out of memory\n");
 		goto out_unlock;
 	}
 	*r = rdtgrp;
@@ -1544,6 +1618,7 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
 	kn = kernfs_create_dir(parent_kn, name, mode, rdtgrp);
 	if (IS_ERR(kn)) {
 		ret = PTR_ERR(kn);
+		rdt_last_cmd_puts("kernfs create error\n");
 		goto out_free_rgrp;
 	}
 	rdtgrp->kn = kn;
@@ -1557,24 +1632,31 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
 	kernfs_get(kn);
 
 	ret = rdtgroup_kn_set_ugid(kn);
-	if (ret)
+	if (ret) {
+		rdt_last_cmd_puts("kernfs perm error\n");
 		goto out_destroy;
+	}
 
-	files = RFTYPE_BASE | RFTYPE_CTRL;
 	files = RFTYPE_BASE | BIT(RF_CTRLSHIFT + rtype);
 	ret = rdtgroup_add_files(kn, files);
-	if (ret)
+	if (ret) {
+		rdt_last_cmd_puts("kernfs fill error\n");
 		goto out_destroy;
+	}
 
 	if (rdt_mon_capable) {
 		ret = alloc_rmid();
-		if (ret < 0)
+		if (ret < 0) {
+			rdt_last_cmd_puts("out of RMIDs\n");
 			goto out_destroy;
+		}
 		rdtgrp->mon.rmid = ret;
 
 		ret = mkdir_mondata_all(kn, rdtgrp, &rdtgrp->mon.mon_data_kn);
-		if (ret)
+		if (ret) {
+			rdt_last_cmd_puts("kernfs subdir error\n");
 			goto out_idfree;
+		}
 	}
 	kernfs_activate(kn);
 
@@ -1652,8 +1734,10 @@ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn,
 
 	kn = rdtgrp->kn;
 	ret = closid_alloc();
-	if (ret < 0)
+	if (ret < 0) {
+		rdt_last_cmd_puts("out of CLOSIDs\n");
 		goto out_common_fail;
+	}
 	closid = ret;
 
 	rdtgrp->closid = closid;
@@ -1665,8 +1749,10 @@ static int rdtgroup_mkdir_ctrl_mon(struct kernfs_node *parent_kn,
 		 * of tasks and cpus to monitor.
 		 */
 		ret = mongroup_create_dir(kn, NULL, "mon_groups", NULL);
-		if (ret)
+		if (ret) {
+			rdt_last_cmd_puts("kernfs subdir error\n");
 			goto out_id_free;
+		}
 	}
 
 	goto out_unlock;
@@ -1902,6 +1988,9 @@ int __init rdtgroup_init(void)
 {
 	int ret = 0;
 
+	seq_buf_init(&last_cmd_status, last_cmd_status_buf,
+		     sizeof(last_cmd_status_buf));
+
 	ret = rdtgroup_setup_root();
 	if (ret)
 		return ret;
diff --git a/arch/x86/kernel/cpu/match.c b/arch/x86/kernel/cpu/match.c
index e42117d5f4d7..3fed38812eea 100644
--- a/arch/x86/kernel/cpu/match.c
+++ b/arch/x86/kernel/cpu/match.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/cpu_device_id.h>
 #include <asm/cpufeature.h>
 #include <linux/cpu.h>
diff --git a/arch/x86/kernel/cpu/mcheck/Makefile b/arch/x86/kernel/cpu/mcheck/Makefile
index 43051f0777d4..bcc7c54c7041 100644
--- a/arch/x86/kernel/cpu/mcheck/Makefile
+++ b/arch/x86/kernel/cpu/mcheck/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				=  mce.o mce-severity.o mce-genpool.o
 
 obj-$(CONFIG_X86_ANCIENT_MCE)	+= winchip.o p5.o
diff --git a/arch/x86/kernel/cpu/mcheck/dev-mcelog.c b/arch/x86/kernel/cpu/mcheck/dev-mcelog.c
index 10cec43aac38..7f85b76f43bc 100644
--- a/arch/x86/kernel/cpu/mcheck/dev-mcelog.c
+++ b/arch/x86/kernel/cpu/mcheck/dev-mcelog.c
@@ -24,14 +24,6 @@ static DEFINE_MUTEX(mce_chrdev_read_mutex);
 static char mce_helper[128];
 static char *mce_helper_argv[2] = { mce_helper, NULL };
 
-#define mce_log_get_idx_check(p) \
-({ \
-	RCU_LOCKDEP_WARN(!rcu_read_lock_sched_held() && \
-			 !lockdep_is_held(&mce_chrdev_read_mutex), \
-			 "suspicious mce_log_get_idx_check() usage"); \
-	smp_load_acquire(&(p)); \
-})
-
 /*
  * Lockless MCE logging infrastructure.
  * This avoids deadlocks on printk locks without having to break locks. Also
@@ -53,43 +45,32 @@ static int dev_mce_log(struct notifier_block *nb, unsigned long val,
 				void *data)
 {
 	struct mce *mce = (struct mce *)data;
-	unsigned int next, entry;
-
-	wmb();
-	for (;;) {
-		entry = mce_log_get_idx_check(mcelog.next);
-		for (;;) {
-
-			/*
-			 * When the buffer fills up discard new entries.
-			 * Assume that the earlier errors are the more
-			 * interesting ones:
-			 */
-			if (entry >= MCE_LOG_LEN) {
-				set_bit(MCE_OVERFLOW,
-					(unsigned long *)&mcelog.flags);
-				return NOTIFY_OK;
-			}
-			/* Old left over entry. Skip: */
-			if (mcelog.entry[entry].finished) {
-				entry++;
-				continue;
-			}
-			break;
-		}
-		smp_rmb();
-		next = entry + 1;
-		if (cmpxchg(&mcelog.next, entry, next) == entry)
-			break;
+	unsigned int entry;
+
+	mutex_lock(&mce_chrdev_read_mutex);
+
+	entry = mcelog.next;
+
+	/*
+	 * When the buffer fills up discard new entries. Assume that the
+	 * earlier errors are the more interesting ones:
+	 */
+	if (entry >= MCE_LOG_LEN) {
+		set_bit(MCE_OVERFLOW, (unsigned long *)&mcelog.flags);
+		goto unlock;
 	}
+
+	mcelog.next = entry + 1;
+
 	memcpy(mcelog.entry + entry, mce, sizeof(struct mce));
-	wmb();
 	mcelog.entry[entry].finished = 1;
-	wmb();
 
 	/* wake processes polling /dev/mcelog */
 	wake_up_interruptible(&mce_chrdev_wait);
 
+unlock:
+	mutex_unlock(&mce_chrdev_read_mutex);
+
 	return NOTIFY_OK;
 }
 
@@ -177,13 +158,6 @@ static int mce_chrdev_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-static void collect_tscs(void *data)
-{
-	unsigned long *cpu_tsc = (unsigned long *)data;
-
-	cpu_tsc[smp_processor_id()] = rdtsc();
-}
-
 static int mce_apei_read_done;
 
 /* Collect MCE record of previous boot in persistent storage via APEI ERST. */
@@ -231,14 +205,9 @@ static ssize_t mce_chrdev_read(struct file *filp, char __user *ubuf,
 				size_t usize, loff_t *off)
 {
 	char __user *buf = ubuf;
-	unsigned long *cpu_tsc;
-	unsigned prev, next;
+	unsigned next;
 	int i, err;
 
-	cpu_tsc = kmalloc(nr_cpu_ids * sizeof(long), GFP_KERNEL);
-	if (!cpu_tsc)
-		return -ENOMEM;
-
 	mutex_lock(&mce_chrdev_read_mutex);
 
 	if (!mce_apei_read_done) {
@@ -247,65 +216,29 @@ static ssize_t mce_chrdev_read(struct file *filp, char __user *ubuf,
 			goto out;
 	}
 
-	next = mce_log_get_idx_check(mcelog.next);
-
 	/* Only supports full reads right now */
 	err = -EINVAL;
 	if (*off != 0 || usize < MCE_LOG_LEN*sizeof(struct mce))
 		goto out;
 
+	next = mcelog.next;
 	err = 0;
-	prev = 0;
-	do {
-		for (i = prev; i < next; i++) {
-			unsigned long start = jiffies;
-			struct mce *m = &mcelog.entry[i];
-
-			while (!m->finished) {
-				if (time_after_eq(jiffies, start + 2)) {
-					memset(m, 0, sizeof(*m));
-					goto timeout;
-				}
-				cpu_relax();
-			}
-			smp_rmb();
-			err |= copy_to_user(buf, m, sizeof(*m));
-			buf += sizeof(*m);
-timeout:
-			;
-		}
-
-		memset(mcelog.entry + prev, 0,
-		       (next - prev) * sizeof(struct mce));
-		prev = next;
-		next = cmpxchg(&mcelog.next, prev, 0);
-	} while (next != prev);
-
-	synchronize_sched();
 
-	/*
-	 * Collect entries that were still getting written before the
-	 * synchronize.
-	 */
-	on_each_cpu(collect_tscs, cpu_tsc, 1);
-
-	for (i = next; i < MCE_LOG_LEN; i++) {
+	for (i = 0; i < next; i++) {
 		struct mce *m = &mcelog.entry[i];
 
-		if (m->finished && m->tsc < cpu_tsc[m->cpu]) {
-			err |= copy_to_user(buf, m, sizeof(*m));
-			smp_rmb();
-			buf += sizeof(*m);
-			memset(m, 0, sizeof(*m));
-		}
+		err |= copy_to_user(buf, m, sizeof(*m));
+		buf += sizeof(*m);
 	}
 
+	memset(mcelog.entry, 0, next * sizeof(struct mce));
+	mcelog.next = 0;
+
 	if (err)
 		err = -EFAULT;
 
 out:
 	mutex_unlock(&mce_chrdev_read_mutex);
-	kfree(cpu_tsc);
 
 	return err ? err : buf - ubuf;
 }
diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h b/arch/x86/kernel/cpu/mcheck/mce-internal.h
index 098530a93bb7..aa0d5df9dc60 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
@@ -1,3 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __X86_MCE_INTERNAL_H__
+#define __X86_MCE_INTERNAL_H__
+
 #include <linux/device.h>
 #include <asm/mce.h>
 
@@ -108,3 +112,7 @@ static inline void mce_work_trigger(void)	{ }
 static inline void mce_register_injector_chain(struct notifier_block *nb)	{ }
 static inline void mce_unregister_injector_chain(struct notifier_block *nb)	{ }
 #endif
+
+extern struct mca_config mca_cfg;
+
+#endif /* __X86_MCE_INTERNAL_H__ */
diff --git a/arch/x86/kernel/cpu/mcheck/mce-severity.c b/arch/x86/kernel/cpu/mcheck/mce-severity.c
index 87cc9ab7a13c..4ca632a06e0b 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-severity.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-severity.c
@@ -204,7 +204,7 @@ static int error_context(struct mce *m)
 	return IN_KERNEL;
 }
 
-static int mce_severity_amd_smca(struct mce *m, int err_ctx)
+static int mce_severity_amd_smca(struct mce *m, enum context err_ctx)
 {
 	u32 addr = MSR_AMD64_SMCA_MCx_CONFIG(m->bank);
 	u32 low, high;
@@ -245,6 +245,9 @@ static int mce_severity_amd(struct mce *m, int tolerant, char **msg, bool is_exc
 
 	if (m->status & MCI_STATUS_UC) {
 
+		if (ctx == IN_KERNEL)
+			return MCE_PANIC_SEVERITY;
+
 		/*
 		 * On older systems where overflow_recov flag is not present, we
 		 * should simply panic if an error overflow occurs. If
@@ -255,10 +258,6 @@ static int mce_severity_amd(struct mce *m, int tolerant, char **msg, bool is_exc
 			if (mce_flags.smca)
 				return mce_severity_amd_smca(m, ctx);
 
-			/* software can try to contain */
-			if (!(m->mcgstatus & MCG_STATUS_RIPV) && (ctx == IN_KERNEL))
-				return MCE_PANIC_SEVERITY;
-
 			/* kill current process */
 			return MCE_AR_SEVERITY;
 		} else {
diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index 3b413065c613..b1d616d08eee 100644
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -1367,13 +1367,12 @@ static void __start_timer(struct timer_list *t, unsigned long interval)
 	local_irq_restore(flags);
 }
 
-static void mce_timer_fn(unsigned long data)
+static void mce_timer_fn(struct timer_list *t)
 {
-	struct timer_list *t = this_cpu_ptr(&mce_timer);
-	int cpu = smp_processor_id();
+	struct timer_list *cpu_t = this_cpu_ptr(&mce_timer);
 	unsigned long iv;
 
-	WARN_ON(cpu != data);
+	WARN_ON(cpu_t != t);
 
 	iv = __this_cpu_read(mce_next_interval);
 
@@ -1763,17 +1762,15 @@ static void mce_start_timer(struct timer_list *t)
 static void __mcheck_cpu_setup_timer(void)
 {
 	struct timer_list *t = this_cpu_ptr(&mce_timer);
-	unsigned int cpu = smp_processor_id();
 
-	setup_pinned_timer(t, mce_timer_fn, cpu);
+	timer_setup(t, mce_timer_fn, TIMER_PINNED);
 }
 
 static void __mcheck_cpu_init_timer(void)
 {
 	struct timer_list *t = this_cpu_ptr(&mce_timer);
-	unsigned int cpu = smp_processor_id();
 
-	setup_pinned_timer(t, mce_timer_fn, cpu);
+	timer_setup(t, mce_timer_fn, TIMER_PINNED);
 	mce_start_timer(t);
 }
 
diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd.c b/arch/x86/kernel/cpu/mcheck/mce_amd.c
index 40e28ed77fbf..486f640b02ef 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_amd.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_amd.c
@@ -28,6 +28,8 @@
 #include <asm/msr.h>
 #include <asm/trace/irq_vectors.h>
 
+#include "mce-internal.h"
+
 #define NR_BLOCKS         5
 #define THRESHOLD_MAX     0xFFF
 #define INT_TYPE_APIC     0x00020000
diff --git a/arch/x86/kernel/cpu/mcheck/mce_intel.c b/arch/x86/kernel/cpu/mcheck/mce_intel.c
index e84db79ef272..d05be307d081 100644
--- a/arch/x86/kernel/cpu/mcheck/mce_intel.c
+++ b/arch/x86/kernel/cpu/mcheck/mce_intel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Intel specific MCE features.
  * Copyright 2004 Zwane Mwaikambo <zwane@linuxpower.ca>
diff --git a/arch/x86/kernel/cpu/mcheck/p5.c b/arch/x86/kernel/cpu/mcheck/p5.c
index 2a0717bf8033..5cddf831720f 100644
--- a/arch/x86/kernel/cpu/mcheck/p5.c
+++ b/arch/x86/kernel/cpu/mcheck/p5.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * P5 specific Machine Check Exception Reporting
  * (C) Copyright 2002 Alan Cox <alan@lxorguk.ukuu.org.uk>
diff --git a/arch/x86/kernel/cpu/mcheck/threshold.c b/arch/x86/kernel/cpu/mcheck/threshold.c
index 5e7249e42f8f..2b584b319eff 100644
--- a/arch/x86/kernel/cpu/mcheck/threshold.c
+++ b/arch/x86/kernel/cpu/mcheck/threshold.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common corrected MCE threshold handler code:
  */
diff --git a/arch/x86/kernel/cpu/mcheck/winchip.c b/arch/x86/kernel/cpu/mcheck/winchip.c
index c6a722e1d011..3b45b270a865 100644
--- a/arch/x86/kernel/cpu/mcheck/winchip.c
+++ b/arch/x86/kernel/cpu/mcheck/winchip.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IDT Winchip specific Machine Check Exception Reporting
  * (C) Copyright 2002 Alan Cox <alan@lxorguk.ukuu.org.uk>
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index 86e8f0b2537b..c4fa4a85d4cb 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -122,9 +122,6 @@ static bool __init check_loader_disabled_bsp(void)
 	bool *res = &dis_ucode_ldr;
 #endif
 
-	if (!have_cpuid_p())
-		return *res;
-
 	/*
 	 * CPUID(1).ECX[31]: reserved for hypervisor use. This is still not
 	 * completely accurate as xen pv guests don't see that CPUID bit set but
@@ -166,24 +163,36 @@ bool get_builtin_firmware(struct cpio_data *cd, const char *name)
 void __init load_ucode_bsp(void)
 {
 	unsigned int cpuid_1_eax;
+	bool intel = true;
 
-	if (check_loader_disabled_bsp())
+	if (!have_cpuid_p())
 		return;
 
 	cpuid_1_eax = native_cpuid_eax(1);
 
 	switch (x86_cpuid_vendor()) {
 	case X86_VENDOR_INTEL:
-		if (x86_family(cpuid_1_eax) >= 6)
-			load_ucode_intel_bsp();
+		if (x86_family(cpuid_1_eax) < 6)
+			return;
 		break;
+
 	case X86_VENDOR_AMD:
-		if (x86_family(cpuid_1_eax) >= 0x10)
-			load_ucode_amd_bsp(cpuid_1_eax);
+		if (x86_family(cpuid_1_eax) < 0x10)
+			return;
+		intel = false;
 		break;
+
 	default:
-		break;
+		return;
 	}
+
+	if (check_loader_disabled_bsp())
+		return;
+
+	if (intel)
+		load_ucode_intel_bsp();
+	else
+		load_ucode_amd_bsp(cpuid_1_eax);
 }
 
 static bool check_loader_disabled_ap(void)
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index 8f7a9bbad514..7dbcb7adf797 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -34,6 +34,7 @@
 #include <linux/mm.h>
 
 #include <asm/microcode_intel.h>
+#include <asm/intel-family.h>
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/setup.h>
@@ -918,6 +919,18 @@ static int get_ucode_fw(void *to, const void *from, size_t n)
 	return 0;
 }
 
+static bool is_blacklisted(unsigned int cpu)
+{
+	struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+	if (c->x86 == 6 && c->x86_model == INTEL_FAM6_BROADWELL_X) {
+		pr_err_once("late loading on model 79 is disabled.\n");
+		return true;
+	}
+
+	return false;
+}
+
 static enum ucode_state request_microcode_fw(int cpu, struct device *device,
 					     bool refresh_fw)
 {
@@ -926,6 +939,9 @@ static enum ucode_state request_microcode_fw(int cpu, struct device *device,
 	const struct firmware *firmware;
 	enum ucode_state ret;
 
+	if (is_blacklisted(cpu))
+		return UCODE_NFOUND;
+
 	sprintf(name, "intel-ucode/%02x-%02x-%02x",
 		c->x86, c->x86_model, c->x86_mask);
 
@@ -950,6 +966,9 @@ static int get_ucode_user(void *to, const void *from, size_t n)
 static enum ucode_state
 request_microcode_user(int cpu, const void __user *buf, size_t size)
 {
+	if (is_blacklisted(cpu))
+		return UCODE_NFOUND;
+
 	return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
 }
 
diff --git a/arch/x86/kernel/cpu/mkcapflags.sh b/arch/x86/kernel/cpu/mkcapflags.sh
index 6988c74409a8..d0dfb892c72f 100644
--- a/arch/x86/kernel/cpu/mkcapflags.sh
+++ b/arch/x86/kernel/cpu/mkcapflags.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # Generate the x86_cap/bug_flags[] arrays from include/asm/cpufeatures.h
 #
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 3b3f713e15e5..85eb5fc180c8 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -59,8 +59,6 @@ void hyperv_vector_handler(struct pt_regs *regs)
 void hv_setup_vmbus_irq(void (*handler)(void))
 {
 	vmbus_handler = handler;
-	/* Setup the IDT for hypervisor callback */
-	alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR, hyperv_callback_vector);
 }
 
 void hv_remove_vmbus_irq(void)
@@ -251,12 +249,14 @@ static void __init ms_hyperv_init_platform(void)
 	 */
 	x86_platform.apic_post_init = hyperv_init;
 	hyperv_setup_mmu_ops();
+	/* Setup the IDT for hypervisor callback */
+	alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR, hyperv_callback_vector);
 #endif
 }
 
-const __refconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
+const __initconst struct hypervisor_x86 x86_hyper_ms_hyperv = {
 	.name			= "Microsoft Hyper-V",
 	.detect			= ms_hyperv_platform,
-	.init_platform		= ms_hyperv_init_platform,
+	.type			= X86_HYPER_MS_HYPERV,
+	.init.init_platform	= ms_hyperv_init_platform,
 };
-EXPORT_SYMBOL(x86_hyper_ms_hyperv);
diff --git a/arch/x86/kernel/cpu/mtrr/amd.c b/arch/x86/kernel/cpu/mtrr/amd.c
index 92ba9cd31c9a..a65a0272096d 100644
--- a/arch/x86/kernel/cpu/mtrr/amd.c
+++ b/arch/x86/kernel/cpu/mtrr/amd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <asm/mtrr.h>
diff --git a/arch/x86/kernel/cpu/mtrr/centaur.c b/arch/x86/kernel/cpu/mtrr/centaur.c
index 3d689937fc1b..f27177816569 100644
--- a/arch/x86/kernel/cpu/mtrr/centaur.c
+++ b/arch/x86/kernel/cpu/mtrr/centaur.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/mm.h>
 
diff --git a/arch/x86/kernel/cpu/mtrr/cyrix.c b/arch/x86/kernel/cpu/mtrr/cyrix.c
index b1086f79e57e..4296c702a3f7 100644
--- a/arch/x86/kernel/cpu/mtrr/cyrix.c
+++ b/arch/x86/kernel/cpu/mtrr/cyrix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/mm.h>
diff --git a/arch/x86/kernel/cpu/mtrr/if.c b/arch/x86/kernel/cpu/mtrr/if.c
index 6d9b45549109..558444b23923 100644
--- a/arch/x86/kernel/cpu/mtrr/if.c
+++ b/arch/x86/kernel/cpu/mtrr/if.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/capability.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
diff --git a/arch/x86/kernel/cpu/mtrr/mtrr.h b/arch/x86/kernel/cpu/mtrr/mtrr.h
index ad8bd763efa5..2ac99e561181 100644
--- a/arch/x86/kernel/cpu/mtrr/mtrr.h
+++ b/arch/x86/kernel/cpu/mtrr/mtrr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * local MTRR defines.
  */
diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c
index 181eabecae25..d389083330c5 100644
--- a/arch/x86/kernel/cpu/perfctr-watchdog.c
+++ b/arch/x86/kernel/cpu/perfctr-watchdog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * local apic based NMI watchdog for various CPUs.
  *
diff --git a/arch/x86/kernel/cpu/powerflags.c b/arch/x86/kernel/cpu/powerflags.c
index 1dd8294fd730..fd6ec2aa0303 100644
--- a/arch/x86/kernel/cpu/powerflags.c
+++ b/arch/x86/kernel/cpu/powerflags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Strings for the various x86 power flags
  *
diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index 218f79825b3c..6b7e17bf0b71 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -1,7 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/smp.h>
 #include <linux/timex.h>
 #include <linux/string.h>
 #include <linux/seq_file.h>
+#include <linux/cpufreq.h>
 
 /*
  *	Get CPU information for use by the procfs.
@@ -75,9 +77,14 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	if (c->microcode)
 		seq_printf(m, "microcode\t: 0x%x\n", c->microcode);
 
-	if (cpu_has(c, X86_FEATURE_TSC))
+	if (cpu_has(c, X86_FEATURE_TSC)) {
+		unsigned int freq = cpufreq_quick_get(cpu);
+
+		if (!freq)
+			freq = cpu_khz;
 		seq_printf(m, "cpu MHz\t\t: %u.%03u\n",
-			   cpu_khz / 1000, (cpu_khz % 1000));
+			   freq / 1000, (freq % 1000));
+	}
 
 	/* Cache size */
 	if (c->x86_cache_size >= 0)
diff --git a/arch/x86/kernel/cpu/topology.c b/arch/x86/kernel/cpu/topology.c
index cd531355e838..b099024d339c 100644
--- a/arch/x86/kernel/cpu/topology.c
+++ b/arch/x86/kernel/cpu/topology.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Check for extended topology enumeration cpuid leaf 0xb and if it
  * exists, use it for populating initial_apicid and cpu topology
diff --git a/arch/x86/kernel/cpu/transmeta.c b/arch/x86/kernel/cpu/transmeta.c
index d77d07ab310b..42c939827621 100644
--- a/arch/x86/kernel/cpu/transmeta.c
+++ b/arch/x86/kernel/cpu/transmeta.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
diff --git a/arch/x86/kernel/cpu/umc.c b/arch/x86/kernel/cpu/umc.c
index ef9c2a0078bd..65a58a390fc3 100644
--- a/arch/x86/kernel/cpu/umc.c
+++ b/arch/x86/kernel/cpu/umc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <asm/processor.h>
 #include "cpu.h"
diff --git a/arch/x86/kernel/cpu/vmware.c b/arch/x86/kernel/cpu/vmware.c
index 40ed26852ebd..8e005329648b 100644
--- a/arch/x86/kernel/cpu/vmware.c
+++ b/arch/x86/kernel/cpu/vmware.c
@@ -205,10 +205,10 @@ static bool __init vmware_legacy_x2apic_available(void)
 	       (eax & (1 << VMWARE_PORT_CMD_LEGACY_X2APIC)) != 0;
 }
 
-const __refconst struct hypervisor_x86 x86_hyper_vmware = {
+const __initconst struct hypervisor_x86 x86_hyper_vmware = {
 	.name			= "VMware",
 	.detect			= vmware_platform,
-	.init_platform		= vmware_platform_setup,
-	.x2apic_available	= vmware_legacy_x2apic_available,
+	.type			= X86_HYPER_VMWARE,
+	.init.init_platform	= vmware_platform_setup,
+	.init.x2apic_available	= vmware_legacy_x2apic_available,
 };
-EXPORT_SYMBOL(x86_hyper_vmware);
diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index 44404e2307bb..10e74d4778a1 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -209,7 +209,7 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
 }
 
 #ifdef CONFIG_KEXEC_FILE
-static int get_nr_ram_ranges_callback(u64 start, u64 end, void *arg)
+static int get_nr_ram_ranges_callback(struct resource *res, void *arg)
 {
 	unsigned int *nr_ranges = arg;
 
@@ -342,7 +342,7 @@ static int elf_header_exclude_ranges(struct crash_elf_data *ced,
 	return ret;
 }
 
-static int prepare_elf64_ram_headers_callback(u64 start, u64 end, void *arg)
+static int prepare_elf64_ram_headers_callback(struct resource *res, void *arg)
 {
 	struct crash_elf_data *ced = arg;
 	Elf64_Ehdr *ehdr;
@@ -355,7 +355,7 @@ static int prepare_elf64_ram_headers_callback(u64 start, u64 end, void *arg)
 	ehdr = ced->ehdr;
 
 	/* Exclude unwanted mem ranges */
-	ret = elf_header_exclude_ranges(ced, start, end);
+	ret = elf_header_exclude_ranges(ced, res->start, res->end);
 	if (ret)
 		return ret;
 
@@ -518,14 +518,14 @@ static int add_e820_entry(struct boot_params *params, struct e820_entry *entry)
 	return 0;
 }
 
-static int memmap_entry_callback(u64 start, u64 end, void *arg)
+static int memmap_entry_callback(struct resource *res, void *arg)
 {
 	struct crash_memmap_data *cmd = arg;
 	struct boot_params *params = cmd->params;
 	struct e820_entry ei;
 
-	ei.addr = start;
-	ei.size = end - start + 1;
+	ei.addr = res->start;
+	ei.size = resource_size(res);
 	ei.type = cmd->type;
 	add_e820_entry(params, &ei);
 
@@ -619,12 +619,12 @@ out:
 	return ret;
 }
 
-static int determine_backup_region(u64 start, u64 end, void *arg)
+static int determine_backup_region(struct resource *res, void *arg)
 {
 	struct kimage *image = arg;
 
-	image->arch.backup_src_start = start;
-	image->arch.backup_src_sz = end - start + 1;
+	image->arch.backup_src_start = res->start;
+	image->arch.backup_src_sz = resource_size(res);
 
 	/* Expecting only one range for backup region */
 	return 1;
diff --git a/arch/x86/kernel/crash_dump_32.c b/arch/x86/kernel/crash_dump_32.c
index 538fedea9b3f..33ee47670b99 100644
--- a/arch/x86/kernel/crash_dump_32.c
+++ b/arch/x86/kernel/crash_dump_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Memory preserving reboot related code.
  *
diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c
index afa64adb75ee..4f2e0778feac 100644
--- a/arch/x86/kernel/crash_dump_64.c
+++ b/arch/x86/kernel/crash_dump_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Memory preserving reboot related code.
  *
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index cbf1f6ba39a8..76e07698e6d1 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Architecture specific OF callbacks.
  */
diff --git a/arch/x86/kernel/doublefault.c b/arch/x86/kernel/doublefault.c
index f9c324e08d85..0e662c55ae90 100644
--- a/arch/x86/kernel/doublefault.c
+++ b/arch/x86/kernel/doublefault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/sched/debug.h>
diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c
index 4f0481474903..daefae83a3aa 100644
--- a/arch/x86/kernel/dumpstack_32.c
+++ b/arch/x86/kernel/dumpstack_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 225af4184f06..88ce2ffdb110 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 927abeaf63e2..1e82f787c160 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Various workarounds for chipset bugs.
    This code runs very early and can't use the regular PCI subsystem
    The entries are keyed to PCI bridges which usually identify chipsets
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index 0f0840304452..5e801c8c8ce7 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/console.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/arch/x86/kernel/ebda.c b/arch/x86/kernel/ebda.c
index 4312f8ae71b7..38e7d597b660 100644
--- a/arch/x86/kernel/ebda.c
+++ b/arch/x86/kernel/ebda.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/memblock.h>
diff --git a/arch/x86/kernel/espfix_64.c b/arch/x86/kernel/espfix_64.c
index 9c4e7ba6870c..7d7715dde901 100644
--- a/arch/x86/kernel/espfix_64.c
+++ b/arch/x86/kernel/espfix_64.c
@@ -155,14 +155,14 @@ void init_espfix_ap(int cpu)
 	page = cpu/ESPFIX_STACKS_PER_PAGE;
 
 	/* Did another CPU already set this up? */
-	stack_page = ACCESS_ONCE(espfix_pages[page]);
+	stack_page = READ_ONCE(espfix_pages[page]);
 	if (likely(stack_page))
 		goto done;
 
 	mutex_lock(&espfix_init_mutex);
 
 	/* Did we race on the lock? */
-	stack_page = ACCESS_ONCE(espfix_pages[page]);
+	stack_page = READ_ONCE(espfix_pages[page]);
 	if (stack_page)
 		goto unlock_done;
 
@@ -200,7 +200,7 @@ void init_espfix_ap(int cpu)
 		set_pte(&pte_p[n*PTE_STRIDE], pte);
 
 	/* Job is done for this CPU and any CPU which shares this page */
-	ACCESS_ONCE(espfix_pages[page]) = stack_page;
+	WRITE_ONCE(espfix_pages[page], stack_page);
 
 unlock_done:
 	mutex_unlock(&espfix_init_mutex);
diff --git a/arch/x86/kernel/fpu/bugs.c b/arch/x86/kernel/fpu/bugs.c
index d913047f832c..2954fab15e51 100644
--- a/arch/x86/kernel/fpu/bugs.c
+++ b/arch/x86/kernel/fpu/bugs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * x86 FPU bug checks:
  */
diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
index e1114f070c2d..f92a6593de1e 100644
--- a/arch/x86/kernel/fpu/core.c
+++ b/arch/x86/kernel/fpu/core.c
@@ -100,7 +100,7 @@ void __kernel_fpu_begin(void)
 
 	kernel_fpu_disable();
 
-	if (fpu->fpregs_active) {
+	if (fpu->initialized) {
 		/*
 		 * Ignore return value -- we don't care if reg state
 		 * is clobbered.
@@ -116,7 +116,7 @@ void __kernel_fpu_end(void)
 {
 	struct fpu *fpu = &current->thread.fpu;
 
-	if (fpu->fpregs_active)
+	if (fpu->initialized)
 		copy_kernel_to_fpregs(&fpu->state);
 
 	kernel_fpu_enable();
@@ -148,7 +148,7 @@ void fpu__save(struct fpu *fpu)
 
 	preempt_disable();
 	trace_x86_fpu_before_save(fpu);
-	if (fpu->fpregs_active) {
+	if (fpu->initialized) {
 		if (!copy_fpregs_to_fpstate(fpu)) {
 			copy_kernel_to_fpregs(&fpu->state);
 		}
@@ -189,10 +189,9 @@ EXPORT_SYMBOL_GPL(fpstate_init);
 
 int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
 {
-	dst_fpu->fpregs_active = 0;
 	dst_fpu->last_cpu = -1;
 
-	if (!src_fpu->fpstate_active || !static_cpu_has(X86_FEATURE_FPU))
+	if (!src_fpu->initialized || !static_cpu_has(X86_FEATURE_FPU))
 		return 0;
 
 	WARN_ON_FPU(src_fpu != &current->thread.fpu);
@@ -206,26 +205,14 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
 	/*
 	 * Save current FPU registers directly into the child
 	 * FPU context, without any memory-to-memory copying.
-	 * In lazy mode, if the FPU context isn't loaded into
-	 * fpregs, CR0.TS will be set and do_device_not_available
-	 * will load the FPU context.
 	 *
-	 * We have to do all this with preemption disabled,
-	 * mostly because of the FNSAVE case, because in that
-	 * case we must not allow preemption in the window
-	 * between the FNSAVE and us marking the context lazy.
-	 *
-	 * It shouldn't be an issue as even FNSAVE is plenty
-	 * fast in terms of critical section length.
+	 * ( The function 'fails' in the FNSAVE case, which destroys
+	 *   register contents so we have to copy them back. )
 	 */
-	preempt_disable();
 	if (!copy_fpregs_to_fpstate(dst_fpu)) {
-		memcpy(&src_fpu->state, &dst_fpu->state,
-		       fpu_kernel_xstate_size);
-
+		memcpy(&src_fpu->state, &dst_fpu->state, fpu_kernel_xstate_size);
 		copy_kernel_to_fpregs(&src_fpu->state);
 	}
-	preempt_enable();
 
 	trace_x86_fpu_copy_src(src_fpu);
 	trace_x86_fpu_copy_dst(dst_fpu);
@@ -237,45 +224,48 @@ int fpu__copy(struct fpu *dst_fpu, struct fpu *src_fpu)
  * Activate the current task's in-memory FPU context,
  * if it has not been used before:
  */
-void fpu__activate_curr(struct fpu *fpu)
+void fpu__initialize(struct fpu *fpu)
 {
 	WARN_ON_FPU(fpu != &current->thread.fpu);
 
-	if (!fpu->fpstate_active) {
+	if (!fpu->initialized) {
 		fpstate_init(&fpu->state);
 		trace_x86_fpu_init_state(fpu);
 
 		trace_x86_fpu_activate_state(fpu);
 		/* Safe to do for the current task: */
-		fpu->fpstate_active = 1;
+		fpu->initialized = 1;
 	}
 }
-EXPORT_SYMBOL_GPL(fpu__activate_curr);
+EXPORT_SYMBOL_GPL(fpu__initialize);
 
 /*
  * This function must be called before we read a task's fpstate.
  *
- * If the task has not used the FPU before then initialize its
- * fpstate.
+ * There's two cases where this gets called:
+ *
+ * - for the current task (when coredumping), in which case we have
+ *   to save the latest FPU registers into the fpstate,
+ *
+ * - or it's called for stopped tasks (ptrace), in which case the
+ *   registers were already saved by the context-switch code when
+ *   the task scheduled out - we only have to initialize the registers
+ *   if they've never been initialized.
  *
  * If the task has used the FPU before then save it.
  */
-void fpu__activate_fpstate_read(struct fpu *fpu)
+void fpu__prepare_read(struct fpu *fpu)
 {
-	/*
-	 * If fpregs are active (in the current CPU), then
-	 * copy them to the fpstate:
-	 */
-	if (fpu->fpregs_active) {
+	if (fpu == &current->thread.fpu) {
 		fpu__save(fpu);
 	} else {
-		if (!fpu->fpstate_active) {
+		if (!fpu->initialized) {
 			fpstate_init(&fpu->state);
 			trace_x86_fpu_init_state(fpu);
 
 			trace_x86_fpu_activate_state(fpu);
 			/* Safe to do for current and for stopped child tasks: */
-			fpu->fpstate_active = 1;
+			fpu->initialized = 1;
 		}
 	}
 }
@@ -283,17 +273,17 @@ void fpu__activate_fpstate_read(struct fpu *fpu)
 /*
  * This function must be called before we write a task's fpstate.
  *
- * If the task has used the FPU before then unlazy it.
+ * If the task has used the FPU before then invalidate any cached FPU registers.
  * If the task has not used the FPU before then initialize its fpstate.
  *
  * After this function call, after registers in the fpstate are
  * modified and the child task has woken up, the child task will
  * restore the modified FPU state from the modified context. If we
- * didn't clear its lazy status here then the lazy in-registers
+ * didn't clear its cached status here then the cached in-registers
  * state pending on its former CPU could be restored, corrupting
  * the modifications.
  */
-void fpu__activate_fpstate_write(struct fpu *fpu)
+void fpu__prepare_write(struct fpu *fpu)
 {
 	/*
 	 * Only stopped child tasks can be used to modify the FPU
@@ -301,8 +291,8 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
 	 */
 	WARN_ON_FPU(fpu == &current->thread.fpu);
 
-	if (fpu->fpstate_active) {
-		/* Invalidate any lazy state: */
+	if (fpu->initialized) {
+		/* Invalidate any cached state: */
 		__fpu_invalidate_fpregs_state(fpu);
 	} else {
 		fpstate_init(&fpu->state);
@@ -310,74 +300,11 @@ void fpu__activate_fpstate_write(struct fpu *fpu)
 
 		trace_x86_fpu_activate_state(fpu);
 		/* Safe to do for stopped child tasks: */
-		fpu->fpstate_active = 1;
+		fpu->initialized = 1;
 	}
 }
 
 /*
- * This function must be called before we write the current
- * task's fpstate.
- *
- * This call gets the current FPU register state and moves
- * it in to the 'fpstate'.  Preemption is disabled so that
- * no writes to the 'fpstate' can occur from context
- * swiches.
- *
- * Must be followed by a fpu__current_fpstate_write_end().
- */
-void fpu__current_fpstate_write_begin(void)
-{
-	struct fpu *fpu = &current->thread.fpu;
-
-	/*
-	 * Ensure that the context-switching code does not write
-	 * over the fpstate while we are doing our update.
-	 */
-	preempt_disable();
-
-	/*
-	 * Move the fpregs in to the fpu's 'fpstate'.
-	 */
-	fpu__activate_fpstate_read(fpu);
-
-	/*
-	 * The caller is about to write to 'fpu'.  Ensure that no
-	 * CPU thinks that its fpregs match the fpstate.  This
-	 * ensures we will not be lazy and skip a XRSTOR in the
-	 * future.
-	 */
-	__fpu_invalidate_fpregs_state(fpu);
-}
-
-/*
- * This function must be paired with fpu__current_fpstate_write_begin()
- *
- * This will ensure that the modified fpstate gets placed back in
- * the fpregs if necessary.
- *
- * Note: This function may be called whether or not an _actual_
- * write to the fpstate occurred.
- */
-void fpu__current_fpstate_write_end(void)
-{
-	struct fpu *fpu = &current->thread.fpu;
-
-	/*
-	 * 'fpu' now has an updated copy of the state, but the
-	 * registers may still be out of date.  Update them with
-	 * an XRSTOR if they are active.
-	 */
-	if (fpregs_active())
-		copy_kernel_to_fpregs(&fpu->state);
-
-	/*
-	 * Our update is done and the fpregs/fpstate are in sync
-	 * if necessary.  Context switches can happen again.
-	 */
-	preempt_enable();
-}
-
-/*
  * 'fpu__restore()' is called to copy FPU registers from
  * the FPU fpstate to the live hw registers and to activate
  * access to the hardware registers, so that FPU instructions
@@ -389,7 +316,7 @@ void fpu__current_fpstate_write_end(void)
  */
 void fpu__restore(struct fpu *fpu)
 {
-	fpu__activate_curr(fpu);
+	fpu__initialize(fpu);
 
 	/* Avoid __kernel_fpu_begin() right after fpregs_activate() */
 	kernel_fpu_disable();
@@ -414,15 +341,17 @@ void fpu__drop(struct fpu *fpu)
 {
 	preempt_disable();
 
-	if (fpu->fpregs_active) {
-		/* Ignore delayed exceptions from user space */
-		asm volatile("1: fwait\n"
-			     "2:\n"
-			     _ASM_EXTABLE(1b, 2b));
-		fpregs_deactivate(fpu);
+	if (fpu == &current->thread.fpu) {
+		if (fpu->initialized) {
+			/* Ignore delayed exceptions from user space */
+			asm volatile("1: fwait\n"
+				     "2:\n"
+				     _ASM_EXTABLE(1b, 2b));
+			fpregs_deactivate(fpu);
+		}
 	}
 
-	fpu->fpstate_active = 0;
+	fpu->initialized = 0;
 
 	trace_x86_fpu_dropped(fpu);
 
@@ -462,9 +391,11 @@ void fpu__clear(struct fpu *fpu)
 	 * Make sure fpstate is cleared and initialized.
 	 */
 	if (static_cpu_has(X86_FEATURE_FPU)) {
-		fpu__activate_curr(fpu);
+		preempt_disable();
+		fpu__initialize(fpu);
 		user_fpu_begin();
 		copy_init_fpstate_to_fpregs();
+		preempt_enable();
 	}
 }
 
diff --git a/arch/x86/kernel/fpu/init.c b/arch/x86/kernel/fpu/init.c
index d5d44c452624..6abd83572b01 100644
--- a/arch/x86/kernel/fpu/init.c
+++ b/arch/x86/kernel/fpu/init.c
@@ -240,7 +240,7 @@ static void __init fpu__init_system_ctx_switch(void)
 	WARN_ON_FPU(!on_boot_cpu);
 	on_boot_cpu = 0;
 
-	WARN_ON_FPU(current->thread.fpu.fpstate_active);
+	WARN_ON_FPU(current->thread.fpu.initialized);
 }
 
 /*
@@ -249,6 +249,10 @@ static void __init fpu__init_system_ctx_switch(void)
  */
 static void __init fpu__init_parse_early_param(void)
 {
+	char arg[32];
+	char *argptr = arg;
+	int bit;
+
 	if (cmdline_find_option_bool(boot_command_line, "no387"))
 		setup_clear_cpu_cap(X86_FEATURE_FPU);
 
@@ -266,6 +270,13 @@ static void __init fpu__init_parse_early_param(void)
 
 	if (cmdline_find_option_bool(boot_command_line, "noxsaves"))
 		setup_clear_cpu_cap(X86_FEATURE_XSAVES);
+
+	if (cmdline_find_option(boot_command_line, "clearcpuid", arg,
+				sizeof(arg)) &&
+	    get_option(&argptr, &bit) &&
+	    bit >= 0 &&
+	    bit < NCAPINTS * 32)
+		setup_clear_cpu_cap(bit);
 }
 
 /*
diff --git a/arch/x86/kernel/fpu/regset.c b/arch/x86/kernel/fpu/regset.c
index b188b16841e3..bc02f5144b95 100644
--- a/arch/x86/kernel/fpu/regset.c
+++ b/arch/x86/kernel/fpu/regset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * FPU register's regset abstraction, for ptrace, core dumps, etc.
  */
@@ -16,14 +17,14 @@ int regset_fpregs_active(struct task_struct *target, const struct user_regset *r
 {
 	struct fpu *target_fpu = &target->thread.fpu;
 
-	return target_fpu->fpstate_active ? regset->n : 0;
+	return target_fpu->initialized ? regset->n : 0;
 }
 
 int regset_xregset_fpregs_active(struct task_struct *target, const struct user_regset *regset)
 {
 	struct fpu *target_fpu = &target->thread.fpu;
 
-	if (boot_cpu_has(X86_FEATURE_FXSR) && target_fpu->fpstate_active)
+	if (boot_cpu_has(X86_FEATURE_FXSR) && target_fpu->initialized)
 		return regset->n;
 	else
 		return 0;
@@ -38,7 +39,7 @@ int xfpregs_get(struct task_struct *target, const struct user_regset *regset,
 	if (!boot_cpu_has(X86_FEATURE_FXSR))
 		return -ENODEV;
 
-	fpu__activate_fpstate_read(fpu);
+	fpu__prepare_read(fpu);
 	fpstate_sanitize_xstate(fpu);
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
@@ -55,7 +56,7 @@ int xfpregs_set(struct task_struct *target, const struct user_regset *regset,
 	if (!boot_cpu_has(X86_FEATURE_FXSR))
 		return -ENODEV;
 
-	fpu__activate_fpstate_write(fpu);
+	fpu__prepare_write(fpu);
 	fpstate_sanitize_xstate(fpu);
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
@@ -89,10 +90,13 @@ int xstateregs_get(struct task_struct *target, const struct user_regset *regset,
 
 	xsave = &fpu->state.xsave;
 
-	fpu__activate_fpstate_read(fpu);
+	fpu__prepare_read(fpu);
 
 	if (using_compacted_format()) {
-		ret = copyout_from_xsaves(pos, count, kbuf, ubuf, xsave);
+		if (kbuf)
+			ret = copy_xstate_to_kernel(kbuf, xsave, pos, count);
+		else
+			ret = copy_xstate_to_user(ubuf, xsave, pos, count);
 	} else {
 		fpstate_sanitize_xstate(fpu);
 		/*
@@ -129,28 +133,29 @@ int xstateregs_set(struct task_struct *target, const struct user_regset *regset,
 
 	xsave = &fpu->state.xsave;
 
-	fpu__activate_fpstate_write(fpu);
+	fpu__prepare_write(fpu);
 
-	if (boot_cpu_has(X86_FEATURE_XSAVES))
-		ret = copyin_to_xsaves(kbuf, ubuf, xsave);
-	else
+	if (using_compacted_format()) {
+		if (kbuf)
+			ret = copy_kernel_to_xstate(xsave, kbuf);
+		else
+			ret = copy_user_to_xstate(xsave, ubuf);
+	} else {
 		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, xsave, 0, -1);
-
-	/*
-	 * In case of failure, mark all states as init:
-	 */
-	if (ret)
-		fpstate_init(&fpu->state);
+		if (!ret)
+			ret = validate_xstate_header(&xsave->header);
+	}
 
 	/*
 	 * mxcsr reserved bits must be masked to zero for security reasons.
 	 */
 	xsave->i387.mxcsr &= mxcsr_feature_mask;
-	xsave->header.xfeatures &= xfeatures_mask;
+
 	/*
-	 * These bits must be zero.
+	 * In case of failure, mark all states as init:
 	 */
-	memset(&xsave->header.reserved, 0, 48);
+	if (ret)
+		fpstate_init(&fpu->state);
 
 	return ret;
 }
@@ -299,7 +304,7 @@ int fpregs_get(struct task_struct *target, const struct user_regset *regset,
 	struct fpu *fpu = &target->thread.fpu;
 	struct user_i387_ia32_struct env;
 
-	fpu__activate_fpstate_read(fpu);
+	fpu__prepare_read(fpu);
 
 	if (!boot_cpu_has(X86_FEATURE_FPU))
 		return fpregs_soft_get(target, regset, pos, count, kbuf, ubuf);
@@ -329,7 +334,7 @@ int fpregs_set(struct task_struct *target, const struct user_regset *regset,
 	struct user_i387_ia32_struct env;
 	int ret;
 
-	fpu__activate_fpstate_write(fpu);
+	fpu__prepare_write(fpu);
 	fpstate_sanitize_xstate(fpu);
 
 	if (!boot_cpu_has(X86_FEATURE_FPU))
@@ -369,7 +374,7 @@ int dump_fpu(struct pt_regs *regs, struct user_i387_struct *ufpu)
 	struct fpu *fpu = &tsk->thread.fpu;
 	int fpvalid;
 
-	fpvalid = fpu->fpstate_active;
+	fpvalid = fpu->initialized;
 	if (fpvalid)
 		fpvalid = !fpregs_get(tsk, NULL,
 				      0, sizeof(struct user_i387_ia32_struct),
diff --git a/arch/x86/kernel/fpu/signal.c b/arch/x86/kernel/fpu/signal.c
index 83c23c230b4c..23f1691670b6 100644
--- a/arch/x86/kernel/fpu/signal.c
+++ b/arch/x86/kernel/fpu/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * FPU signal frame handling routines.
  */
@@ -155,7 +156,8 @@ static inline int copy_fpregs_to_sigframe(struct xregs_state __user *buf)
  */
 int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
 {
-	struct xregs_state *xsave = &current->thread.fpu.state.xsave;
+	struct fpu *fpu = &current->thread.fpu;
+	struct xregs_state *xsave = &fpu->state.xsave;
 	struct task_struct *tsk = current;
 	int ia32_fxstate = (buf != buf_fx);
 
@@ -170,13 +172,13 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
 			sizeof(struct user_i387_ia32_struct), NULL,
 			(struct _fpstate_32 __user *) buf) ? -1 : 1;
 
-	if (fpregs_active() || using_compacted_format()) {
+	if (fpu->initialized || using_compacted_format()) {
 		/* Save the live register state to the user directly. */
 		if (copy_fpregs_to_sigframe(buf_fx))
 			return -1;
 		/* Update the thread's fxstate to save the fsave header. */
 		if (ia32_fxstate)
-			copy_fxregs_to_kernel(&tsk->thread.fpu);
+			copy_fxregs_to_kernel(fpu);
 	} else {
 		/*
 		 * It is a *bug* if kernel uses compacted-format for xsave
@@ -189,7 +191,7 @@ int copy_fpstate_to_sigframe(void __user *buf, void __user *buf_fx, int size)
 			return -1;
 		}
 
-		fpstate_sanitize_xstate(&tsk->thread.fpu);
+		fpstate_sanitize_xstate(fpu);
 		if (__copy_to_user(buf_fx, xsave, fpu_user_xstate_size))
 			return -1;
 	}
@@ -213,8 +215,11 @@ sanitize_restored_xstate(struct task_struct *tsk,
 	struct xstate_header *header = &xsave->header;
 
 	if (use_xsave()) {
-		/* These bits must be zero. */
-		memset(header->reserved, 0, 48);
+		/*
+		 * Note: we don't need to zero the reserved bits in the
+		 * xstate_header here because we either didn't copy them at all,
+		 * or we checked earlier that they aren't set.
+		 */
 
 		/*
 		 * Init the state that is not present in the memory
@@ -223,7 +228,7 @@ sanitize_restored_xstate(struct task_struct *tsk,
 		if (fx_only)
 			header->xfeatures = XFEATURE_MASK_FPSSE;
 		else
-			header->xfeatures &= (xfeatures_mask & xfeatures);
+			header->xfeatures &= xfeatures;
 	}
 
 	if (use_fxsr()) {
@@ -279,7 +284,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
 	if (!access_ok(VERIFY_READ, buf, size))
 		return -EACCES;
 
-	fpu__activate_curr(fpu);
+	fpu__initialize(fpu);
 
 	if (!static_cpu_has(X86_FEATURE_FPU))
 		return fpregs_soft_set(current, NULL,
@@ -307,28 +312,29 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
 		/*
 		 * For 32-bit frames with fxstate, copy the user state to the
 		 * thread's fpu state, reconstruct fxstate from the fsave
-		 * header. Sanitize the copied state etc.
+		 * header. Validate and sanitize the copied state.
 		 */
 		struct fpu *fpu = &tsk->thread.fpu;
 		struct user_i387_ia32_struct env;
 		int err = 0;
 
 		/*
-		 * Drop the current fpu which clears fpu->fpstate_active. This ensures
+		 * Drop the current fpu which clears fpu->initialized. This ensures
 		 * that any context-switch during the copy of the new state,
 		 * avoids the intermediate state from getting restored/saved.
 		 * Thus avoiding the new restored state from getting corrupted.
 		 * We will be ready to restore/save the state only after
-		 * fpu->fpstate_active is again set.
+		 * fpu->initialized is again set.
 		 */
 		fpu__drop(fpu);
 
 		if (using_compacted_format()) {
-			err = copyin_to_xsaves(NULL, buf_fx,
-					       &fpu->state.xsave);
+			err = copy_user_to_xstate(&fpu->state.xsave, buf_fx);
 		} else {
-			err = __copy_from_user(&fpu->state.xsave,
-					       buf_fx, state_size);
+			err = __copy_from_user(&fpu->state.xsave, buf_fx, state_size);
+
+			if (!err && state_size > offsetof(struct xregs_state, header))
+				err = validate_xstate_header(&fpu->state.xsave.header);
 		}
 
 		if (err || __copy_from_user(&env, buf, sizeof(env))) {
@@ -339,7 +345,7 @@ static int __fpu__restore_sig(void __user *buf, void __user *buf_fx, int size)
 			sanitize_restored_xstate(tsk, &env, xfeatures, fx_only);
 		}
 
-		fpu->fpstate_active = 1;
+		fpu->initialized = 1;
 		preempt_disable();
 		fpu__restore(fpu);
 		preempt_enable();
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c
index c24ac1efb12d..87a57b7642d3 100644
--- a/arch/x86/kernel/fpu/xstate.c
+++ b/arch/x86/kernel/fpu/xstate.c
@@ -15,6 +15,7 @@
 #include <asm/fpu/xstate.h>
 
 #include <asm/tlbflush.h>
+#include <asm/cpufeature.h>
 
 /*
  * Although we spell it out in here, the Processor Trace
@@ -36,6 +37,19 @@ static const char *xfeature_names[] =
 	"unknown xstate feature"	,
 };
 
+static short xsave_cpuid_features[] __initdata = {
+	X86_FEATURE_FPU,
+	X86_FEATURE_XMM,
+	X86_FEATURE_AVX,
+	X86_FEATURE_MPX,
+	X86_FEATURE_MPX,
+	X86_FEATURE_AVX512F,
+	X86_FEATURE_AVX512F,
+	X86_FEATURE_AVX512F,
+	X86_FEATURE_INTEL_PT,
+	X86_FEATURE_PKU,
+};
+
 /*
  * Mask of xstate features supported by the CPU and the kernel:
  */
@@ -59,26 +73,6 @@ unsigned int fpu_user_xstate_size;
 void fpu__xstate_clear_all_cpu_caps(void)
 {
 	setup_clear_cpu_cap(X86_FEATURE_XSAVE);
-	setup_clear_cpu_cap(X86_FEATURE_XSAVEOPT);
-	setup_clear_cpu_cap(X86_FEATURE_XSAVEC);
-	setup_clear_cpu_cap(X86_FEATURE_XSAVES);
-	setup_clear_cpu_cap(X86_FEATURE_AVX);
-	setup_clear_cpu_cap(X86_FEATURE_AVX2);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512F);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512IFMA);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512PF);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512ER);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512CD);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512DQ);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512BW);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512VL);
-	setup_clear_cpu_cap(X86_FEATURE_MPX);
-	setup_clear_cpu_cap(X86_FEATURE_XGETBV1);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512VBMI);
-	setup_clear_cpu_cap(X86_FEATURE_PKU);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512_4VNNIW);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512_4FMAPS);
-	setup_clear_cpu_cap(X86_FEATURE_AVX512_VPOPCNTDQ);
 }
 
 /*
@@ -483,6 +477,30 @@ int using_compacted_format(void)
 	return boot_cpu_has(X86_FEATURE_XSAVES);
 }
 
+/* Validate an xstate header supplied by userspace (ptrace or sigreturn) */
+int validate_xstate_header(const struct xstate_header *hdr)
+{
+	/* No unknown or supervisor features may be set */
+	if (hdr->xfeatures & (~xfeatures_mask | XFEATURE_MASK_SUPERVISOR))
+		return -EINVAL;
+
+	/* Userspace must use the uncompacted format */
+	if (hdr->xcomp_bv)
+		return -EINVAL;
+
+	/*
+	 * If 'reserved' is shrunken to add a new field, make sure to validate
+	 * that new field here!
+	 */
+	BUILD_BUG_ON(sizeof(hdr->reserved) != 48);
+
+	/* No reserved bits may be set */
+	if (memchr_inv(hdr->reserved, 0, sizeof(hdr->reserved)))
+		return -EINVAL;
+
+	return 0;
+}
+
 static void __xstate_dump_leaves(void)
 {
 	int i;
@@ -702,6 +720,7 @@ void __init fpu__init_system_xstate(void)
 	unsigned int eax, ebx, ecx, edx;
 	static int on_boot_cpu __initdata = 1;
 	int err;
+	int i;
 
 	WARN_ON_FPU(!on_boot_cpu);
 	on_boot_cpu = 0;
@@ -735,6 +754,14 @@ void __init fpu__init_system_xstate(void)
 		goto out_disable;
 	}
 
+	/*
+	 * Clear XSAVE features that are disabled in the normal CPUID.
+	 */
+	for (i = 0; i < ARRAY_SIZE(xsave_cpuid_features); i++) {
+		if (!boot_cpu_has(xsave_cpuid_features[i]))
+			xfeatures_mask &= ~BIT(i);
+	}
+
 	xfeatures_mask &= fpu__get_supported_xfeatures_mask();
 
 	/* Enable xstate instructions to be able to continue with initialization: */
@@ -867,7 +894,7 @@ const void *get_xsave_field_ptr(int xsave_state)
 {
 	struct fpu *fpu = &current->thread.fpu;
 
-	if (!fpu->fpstate_active)
+	if (!fpu->initialized)
 		return NULL;
 	/*
 	 * fpu__save() takes the CPU's xstate registers
@@ -921,38 +948,129 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
 #endif /* ! CONFIG_ARCH_HAS_PKEYS */
 
 /*
+ * Weird legacy quirk: SSE and YMM states store information in the
+ * MXCSR and MXCSR_FLAGS fields of the FP area. That means if the FP
+ * area is marked as unused in the xfeatures header, we need to copy
+ * MXCSR and MXCSR_FLAGS if either SSE or YMM are in use.
+ */
+static inline bool xfeatures_mxcsr_quirk(u64 xfeatures)
+{
+	if (!(xfeatures & (XFEATURE_MASK_SSE|XFEATURE_MASK_YMM)))
+		return false;
+
+	if (xfeatures & XFEATURE_MASK_FP)
+		return false;
+
+	return true;
+}
+
+/*
  * This is similar to user_regset_copyout(), but will not add offset to
  * the source data pointer or increment pos, count, kbuf, and ubuf.
  */
-static inline int xstate_copyout(unsigned int pos, unsigned int count,
-				 void *kbuf, void __user *ubuf,
-				 const void *data, const int start_pos,
-				 const int end_pos)
+static inline void
+__copy_xstate_to_kernel(void *kbuf, const void *data,
+			unsigned int offset, unsigned int size, unsigned int size_total)
 {
-	if ((count == 0) || (pos < start_pos))
-		return 0;
+	if (offset < size_total) {
+		unsigned int copy = min(size, size_total - offset);
 
-	if (end_pos < 0 || pos < end_pos) {
-		unsigned int copy = (end_pos < 0 ? count : min(count, end_pos - pos));
+		memcpy(kbuf + offset, data, copy);
+	}
+}
 
-		if (kbuf) {
-			memcpy(kbuf + pos, data, copy);
-		} else {
-			if (__copy_to_user(ubuf + pos, data, copy))
-				return -EFAULT;
+/*
+ * Convert from kernel XSAVES compacted format to standard format and copy
+ * to a kernel-space ptrace buffer.
+ *
+ * It supports partial copy but pos always starts from zero. This is called
+ * from xstateregs_get() and there we check the CPU has XSAVES.
+ */
+int copy_xstate_to_kernel(void *kbuf, struct xregs_state *xsave, unsigned int offset_start, unsigned int size_total)
+{
+	unsigned int offset, size;
+	struct xstate_header header;
+	int i;
+
+	/*
+	 * Currently copy_regset_to_user() starts from pos 0:
+	 */
+	if (unlikely(offset_start != 0))
+		return -EFAULT;
+
+	/*
+	 * The destination is a ptrace buffer; we put in only user xstates:
+	 */
+	memset(&header, 0, sizeof(header));
+	header.xfeatures = xsave->header.xfeatures;
+	header.xfeatures &= ~XFEATURE_MASK_SUPERVISOR;
+
+	/*
+	 * Copy xregs_state->header:
+	 */
+	offset = offsetof(struct xregs_state, header);
+	size = sizeof(header);
+
+	__copy_xstate_to_kernel(kbuf, &header, offset, size, size_total);
+
+	for (i = 0; i < XFEATURE_MAX; i++) {
+		/*
+		 * Copy only in-use xstates:
+		 */
+		if ((header.xfeatures >> i) & 1) {
+			void *src = __raw_xsave_addr(xsave, 1 << i);
+
+			offset = xstate_offsets[i];
+			size = xstate_sizes[i];
+
+			/* The next component has to fit fully into the output buffer: */
+			if (offset + size > size_total)
+				break;
+
+			__copy_xstate_to_kernel(kbuf, src, offset, size, size_total);
 		}
+
+	}
+
+	if (xfeatures_mxcsr_quirk(header.xfeatures)) {
+		offset = offsetof(struct fxregs_state, mxcsr);
+		size = MXCSR_AND_FLAGS_SIZE;
+		__copy_xstate_to_kernel(kbuf, &xsave->i387.mxcsr, offset, size, size_total);
+	}
+
+	/*
+	 * Fill xsave->i387.sw_reserved value for ptrace frame:
+	 */
+	offset = offsetof(struct fxregs_state, sw_reserved);
+	size = sizeof(xstate_fx_sw_bytes);
+
+	__copy_xstate_to_kernel(kbuf, xstate_fx_sw_bytes, offset, size, size_total);
+
+	return 0;
+}
+
+static inline int
+__copy_xstate_to_user(void __user *ubuf, const void *data, unsigned int offset, unsigned int size, unsigned int size_total)
+{
+	if (!size)
+		return 0;
+
+	if (offset < size_total) {
+		unsigned int copy = min(size, size_total - offset);
+
+		if (__copy_to_user(ubuf + offset, data, copy))
+			return -EFAULT;
 	}
 	return 0;
 }
 
 /*
  * Convert from kernel XSAVES compacted format to standard format and copy
- * to a ptrace buffer. It supports partial copy but pos always starts from
+ * to a user-space buffer. It supports partial copy but pos always starts from
  * zero. This is called from xstateregs_get() and there we check the CPU
  * has XSAVES.
  */
-int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
-			void __user *ubuf, struct xregs_state *xsave)
+int copy_xstate_to_user(void __user *ubuf, struct xregs_state *xsave, unsigned int offset_start, unsigned int size_total)
 {
 	unsigned int offset, size;
 	int ret, i;
@@ -961,7 +1079,7 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
 	/*
 	 * Currently copy_regset_to_user() starts from pos 0:
 	 */
-	if (unlikely(pos != 0))
+	if (unlikely(offset_start != 0))
 		return -EFAULT;
 
 	/*
@@ -977,8 +1095,7 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
 	offset = offsetof(struct xregs_state, header);
 	size = sizeof(header);
 
-	ret = xstate_copyout(offset, size, kbuf, ubuf, &header, 0, count);
-
+	ret = __copy_xstate_to_user(ubuf, &header, offset, size, size_total);
 	if (ret)
 		return ret;
 
@@ -992,25 +1109,30 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
 			offset = xstate_offsets[i];
 			size = xstate_sizes[i];
 
-			ret = xstate_copyout(offset, size, kbuf, ubuf, src, 0, count);
+			/* The next component has to fit fully into the output buffer: */
+			if (offset + size > size_total)
+				break;
 
+			ret = __copy_xstate_to_user(ubuf, src, offset, size, size_total);
 			if (ret)
 				return ret;
-
-			if (offset + size >= count)
-				break;
 		}
 
 	}
 
+	if (xfeatures_mxcsr_quirk(header.xfeatures)) {
+		offset = offsetof(struct fxregs_state, mxcsr);
+		size = MXCSR_AND_FLAGS_SIZE;
+		__copy_xstate_to_user(ubuf, &xsave->i387.mxcsr, offset, size, size_total);
+	}
+
 	/*
 	 * Fill xsave->i387.sw_reserved value for ptrace frame:
 	 */
 	offset = offsetof(struct fxregs_state, sw_reserved);
 	size = sizeof(xstate_fx_sw_bytes);
 
-	ret = xstate_copyout(offset, size, kbuf, ubuf, xstate_fx_sw_bytes, 0, count);
-
+	ret = __copy_xstate_to_user(ubuf, xstate_fx_sw_bytes, offset, size, size_total);
 	if (ret)
 		return ret;
 
@@ -1018,55 +1140,98 @@ int copyout_from_xsaves(unsigned int pos, unsigned int count, void *kbuf,
 }
 
 /*
- * Convert from a ptrace standard-format buffer to kernel XSAVES format
- * and copy to the target thread. This is called from xstateregs_set() and
- * there we check the CPU has XSAVES and a whole standard-sized buffer
- * exists.
+ * Convert from a ptrace standard-format kernel buffer to kernel XSAVES format
+ * and copy to the target thread. This is called from xstateregs_set().
  */
-int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
-		     struct xregs_state *xsave)
+int copy_kernel_to_xstate(struct xregs_state *xsave, const void *kbuf)
 {
 	unsigned int offset, size;
 	int i;
-	u64 xfeatures;
-	u64 allowed_features;
+	struct xstate_header hdr;
 
 	offset = offsetof(struct xregs_state, header);
-	size = sizeof(xfeatures);
+	size = sizeof(hdr);
 
-	if (kbuf) {
-		memcpy(&xfeatures, kbuf + offset, size);
-	} else {
-		if (__copy_from_user(&xfeatures, ubuf + offset, size))
-			return -EFAULT;
+	memcpy(&hdr, kbuf + offset, size);
+
+	if (validate_xstate_header(&hdr))
+		return -EINVAL;
+
+	for (i = 0; i < XFEATURE_MAX; i++) {
+		u64 mask = ((u64)1 << i);
+
+		if (hdr.xfeatures & mask) {
+			void *dst = __raw_xsave_addr(xsave, 1 << i);
+
+			offset = xstate_offsets[i];
+			size = xstate_sizes[i];
+
+			memcpy(dst, kbuf + offset, size);
+		}
+	}
+
+	if (xfeatures_mxcsr_quirk(hdr.xfeatures)) {
+		offset = offsetof(struct fxregs_state, mxcsr);
+		size = MXCSR_AND_FLAGS_SIZE;
+		memcpy(&xsave->i387.mxcsr, kbuf + offset, size);
 	}
 
 	/*
-	 * Reject if the user sets any disabled or supervisor features:
+	 * The state that came in from userspace was user-state only.
+	 * Mask all the user states out of 'xfeatures':
+	 */
+	xsave->header.xfeatures &= XFEATURE_MASK_SUPERVISOR;
+
+	/*
+	 * Add back in the features that came in from userspace:
 	 */
-	allowed_features = xfeatures_mask & ~XFEATURE_MASK_SUPERVISOR;
+	xsave->header.xfeatures |= hdr.xfeatures;
+
+	return 0;
+}
 
-	if (xfeatures & ~allowed_features)
+/*
+ * Convert from a ptrace or sigreturn standard-format user-space buffer to
+ * kernel XSAVES format and copy to the target thread. This is called from
+ * xstateregs_set(), as well as potentially from the sigreturn() and
+ * rt_sigreturn() system calls.
+ */
+int copy_user_to_xstate(struct xregs_state *xsave, const void __user *ubuf)
+{
+	unsigned int offset, size;
+	int i;
+	struct xstate_header hdr;
+
+	offset = offsetof(struct xregs_state, header);
+	size = sizeof(hdr);
+
+	if (__copy_from_user(&hdr, ubuf + offset, size))
+		return -EFAULT;
+
+	if (validate_xstate_header(&hdr))
 		return -EINVAL;
 
 	for (i = 0; i < XFEATURE_MAX; i++) {
 		u64 mask = ((u64)1 << i);
 
-		if (xfeatures & mask) {
+		if (hdr.xfeatures & mask) {
 			void *dst = __raw_xsave_addr(xsave, 1 << i);
 
 			offset = xstate_offsets[i];
 			size = xstate_sizes[i];
 
-			if (kbuf) {
-				memcpy(dst, kbuf + offset, size);
-			} else {
-				if (__copy_from_user(dst, ubuf + offset, size))
-					return -EFAULT;
-			}
+			if (__copy_from_user(dst, ubuf + offset, size))
+				return -EFAULT;
 		}
 	}
 
+	if (xfeatures_mxcsr_quirk(hdr.xfeatures)) {
+		offset = offsetof(struct fxregs_state, mxcsr);
+		size = MXCSR_AND_FLAGS_SIZE;
+		if (__copy_from_user(&xsave->i387.mxcsr, ubuf + offset, size))
+			return -EFAULT;
+	}
+
 	/*
 	 * The state that came in from userspace was user-state only.
 	 * Mask all the user states out of 'xfeatures':
@@ -1076,7 +1241,7 @@ int copyin_to_xsaves(const void *kbuf, const void __user *ubuf,
 	/*
 	 * Add back in the features that came in from userspace:
 	 */
-	xsave->header.xfeatures |= xfeatures;
+	xsave->header.xfeatures |= hdr.xfeatures;
 
 	return 0;
 }
diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 9bef1bbeba63..01ebcb6f263e 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dynamic function tracing support.
  *
diff --git a/arch/x86/kernel/ftrace_32.S b/arch/x86/kernel/ftrace_32.S
index 722a145b4139..b6c6468e10bc 100644
--- a/arch/x86/kernel/ftrace_32.S
+++ b/arch/x86/kernel/ftrace_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 2017  Steven Rostedt, VMware Inc.
  */
diff --git a/arch/x86/kernel/ftrace_64.S b/arch/x86/kernel/ftrace_64.S
index 1dfac634bbf7..c832291d948a 100644
--- a/arch/x86/kernel/ftrace_64.S
+++ b/arch/x86/kernel/ftrace_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 2014  Steven Rostedt, Red Hat Inc
  */
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index cf2ce063f65a..ec6fefbfd3c0 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/i386/kernel/head32.c -- prepare to run common code
  *
@@ -30,10 +31,11 @@ static void __init i386_default_early_setup(void)
 
 asmlinkage __visible void __init i386_start_kernel(void)
 {
-	cr4_init_shadow();
-
+	/* Make sure IDT is set up before any exception happens */
 	idt_setup_early_handler();
 
+	cr4_init_shadow();
+
 	sanitize_boot_params(&boot_params);
 
 	x86_early_init_platform_quirks();
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index bab4fa579450..6a5d757b9cfd 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  prepare to run common code
  *
diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index 9ed3074d0d27..c29020907886 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *  Copyright (C) 1991, 1992  Linus Torvalds
@@ -211,9 +212,6 @@ ENTRY(startup_32_smp)
 #endif
 
 .Ldefault_entry:
-#define CR0_STATE	(X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \
-			 X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \
-			 X86_CR0_PG)
 	movl $(CR0_STATE & ~X86_CR0_PG),%eax
 	movl %eax,%cr0
 
@@ -401,7 +399,7 @@ ENTRY(early_idt_handler_array)
 	# 24(%rsp) error code
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
-	.ifeq (EXCEPTION_ERRCODE_MASK >> i) & 1
+	.if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
 	pushl $0		# Dummy error code, to make stack frame uniform
 	.endif
 	pushl $i		# 20(%esp) Vector number
diff --git a/arch/x86/kernel/head_64.S b/arch/x86/kernel/head_64.S
index 513cbb012ecc..7dca675fe78d 100644
--- a/arch/x86/kernel/head_64.S
+++ b/arch/x86/kernel/head_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/arch/x86/kernel/head_64.S -- start in 32bit and switch to 64bit
  *
@@ -37,11 +38,12 @@
  *
  */
 
-#define p4d_index(x)	(((x) >> P4D_SHIFT) & (PTRS_PER_P4D-1))
 #define pud_index(x)	(((x) >> PUD_SHIFT) & (PTRS_PER_PUD-1))
 
+#if defined(CONFIG_XEN_PV) || defined(CONFIG_XEN_PVH)
 PGD_PAGE_OFFSET = pgd_index(__PAGE_OFFSET_BASE)
 PGD_START_KERNEL = pgd_index(__START_KERNEL_map)
+#endif
 L3_START_KERNEL = pud_index(__START_KERNEL_map)
 
 	.text
@@ -49,6 +51,7 @@ L3_START_KERNEL = pud_index(__START_KERNEL_map)
 	.code64
 	.globl startup_64
 startup_64:
+	UNWIND_HINT_EMPTY
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
 	 * and someone has loaded an identity mapped page table
@@ -88,6 +91,7 @@ startup_64:
 	addq	$(early_top_pgt - __START_KERNEL_map), %rax
 	jmp 1f
 ENTRY(secondary_startup_64)
+	UNWIND_HINT_EMPTY
 	/*
 	 * At this point the CPU runs in 64bit mode CS.L = 1 CS.D = 0,
 	 * and someone has loaded a mapped page table.
@@ -132,6 +136,7 @@ ENTRY(secondary_startup_64)
 	movq	$1f, %rax
 	jmp	*%rax
 1:
+	UNWIND_HINT_EMPTY
 
 	/* Check if nx is implemented */
 	movl	$0x80000001, %eax
@@ -149,9 +154,6 @@ ENTRY(secondary_startup_64)
 1:	wrmsr				/* Make changes effective */
 
 	/* Setup cr0 */
-#define CR0_STATE	(X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \
-			 X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \
-			 X86_CR0_PG)
 	movl	$CR0_STATE, %eax
 	/* Make changes effective */
 	movq	%rax, %cr0
@@ -234,7 +236,7 @@ ENTRY(secondary_startup_64)
 	pushq	%rax		# target address in negative space
 	lretq
 .Lafter_lret:
-ENDPROC(secondary_startup_64)
+END(secondary_startup_64)
 
 #include "verify_cpu.S"
 
@@ -246,6 +248,7 @@ ENDPROC(secondary_startup_64)
  */
 ENTRY(start_cpu0)
 	movq	initial_stack(%rip), %rsp
+	UNWIND_HINT_EMPTY
 	jmp	.Ljump_to_C_code
 ENDPROC(start_cpu0)
 #endif
@@ -265,26 +268,24 @@ ENDPROC(start_cpu0)
 	.quad  init_thread_union + THREAD_SIZE - SIZEOF_PTREGS
 	__FINITDATA
 
-bad_address:
-	jmp bad_address
-
 	__INIT
 ENTRY(early_idt_handler_array)
-	# 104(%rsp) %rflags
-	#  96(%rsp) %cs
-	#  88(%rsp) %rip
-	#  80(%rsp) error code
 	i = 0
 	.rept NUM_EXCEPTION_VECTORS
-	.ifeq (EXCEPTION_ERRCODE_MASK >> i) & 1
-	pushq $0		# Dummy error code, to make stack frame uniform
+	.if ((EXCEPTION_ERRCODE_MASK >> i) & 1) == 0
+		UNWIND_HINT_IRET_REGS
+		pushq $0	# Dummy error code, to make stack frame uniform
+	.else
+		UNWIND_HINT_IRET_REGS offset=8
 	.endif
 	pushq $i		# 72(%rsp) Vector number
 	jmp early_idt_handler_common
+	UNWIND_HINT_IRET_REGS
 	i = i + 1
 	.fill early_idt_handler_array + i*EARLY_IDT_HANDLER_SIZE - ., 1, 0xcc
 	.endr
-ENDPROC(early_idt_handler_array)
+	UNWIND_HINT_IRET_REGS offset=16
+END(early_idt_handler_array)
 
 early_idt_handler_common:
 	/*
@@ -312,6 +313,7 @@ early_idt_handler_common:
 	pushq %r13				/* pt_regs->r13 */
 	pushq %r14				/* pt_regs->r14 */
 	pushq %r15				/* pt_regs->r15 */
+	UNWIND_HINT_REGS
 
 	cmpq $14,%rsi		/* Page fault? */
 	jnz 10f
@@ -326,8 +328,8 @@ early_idt_handler_common:
 
 20:
 	decl early_recursion_flag(%rip)
-	jmp restore_regs_and_iret
-ENDPROC(early_idt_handler_common)
+	jmp restore_regs_and_return_to_kernel
+END(early_idt_handler_common)
 
 	__INITDATA
 
@@ -361,10 +363,7 @@ NEXT_PAGE(early_dynamic_pgts)
 
 	.data
 
-#ifndef CONFIG_XEN
-NEXT_PAGE(init_top_pgt)
-	.fill	512,8,0
-#else
+#if defined(CONFIG_XEN_PV) || defined(CONFIG_XEN_PVH)
 NEXT_PAGE(init_top_pgt)
 	.quad   level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE_NOENC
 	.org    init_top_pgt + PGD_PAGE_OFFSET*8, 0
@@ -381,6 +380,9 @@ NEXT_PAGE(level2_ident_pgt)
 	 * Don't set NX because code runs from these pages.
 	 */
 	PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD)
+#else
+NEXT_PAGE(init_top_pgt)
+	.fill	512,8,0
 #endif
 
 #ifdef CONFIG_X86_5LEVEL
@@ -434,7 +436,7 @@ ENTRY(phys_base)
 EXPORT_SYMBOL(phys_base)
 
 #include "../../x86/xen/xen-head.S"
-	
+
 	__PAGE_ALIGNED_BSS
 NEXT_PAGE(empty_zero_page)
 	.skip PAGE_SIZE
diff --git a/arch/x86/kernel/i8253.c b/arch/x86/kernel/i8253.c
index 6ebe00cb4a3b..0d307a657abb 100644
--- a/arch/x86/kernel/i8253.c
+++ b/arch/x86/kernel/i8253.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 8253/PIT functions
  *
diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 4e3b8a587c88..86c4439f9d74 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/linkage.h>
 #include <linux/errno.h>
 #include <linux/signal.h>
@@ -113,6 +114,7 @@ static void make_8259A_irq(unsigned int irq)
 	io_apic_irqs &= ~(1<<irq);
 	irq_set_chip_and_handler(irq, &i8259A_chip, handle_level_irq);
 	enable_irq(irq);
+	lapic_assign_legacy_vector(irq, true);
 }
 
 /*
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index 6107ee1cb8d5..d985cef3984f 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -92,8 +92,6 @@ static const __initdata struct idt_data def_idts[] = {
 	INTG(X86_TRAP_DF,		double_fault),
 #endif
 	INTG(X86_TRAP_DB,		debug),
-	INTG(X86_TRAP_NMI,		nmi),
-	INTG(X86_TRAP_BP,		int3),
 
 #ifdef CONFIG_X86_MCE
 	INTG(X86_TRAP_MC,		&machine_check),
@@ -225,7 +223,7 @@ idt_setup_from_table(gate_desc *idt, const struct idt_data *t, int size, bool sy
 		idt_init_desc(&desc, t);
 		write_idt_entry(idt, t->vector, &desc);
 		if (sys)
-			set_bit(t->vector, used_vectors);
+			set_bit(t->vector, system_vectors);
 	}
 }
 
@@ -313,14 +311,14 @@ void __init idt_setup_apic_and_irq_gates(void)
 
 	idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts), true);
 
-	for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) {
+	for_each_clear_bit_from(i, system_vectors, FIRST_SYSTEM_VECTOR) {
 		entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR);
 		set_intr_gate(i, entry);
 	}
 
-	for_each_clear_bit_from(i, used_vectors, NR_VECTORS) {
+	for_each_clear_bit_from(i, system_vectors, NR_VECTORS) {
 #ifdef CONFIG_X86_LOCAL_APIC
-		set_bit(i, used_vectors);
+		set_bit(i, system_vectors);
 		set_intr_gate(i, spurious_interrupt);
 #else
 		entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR);
@@ -358,7 +356,7 @@ void idt_invalidate(void *addr)
 
 void __init update_intr_gate(unsigned int n, const void *addr)
 {
-	if (WARN_ON_ONCE(!test_bit(n, used_vectors)))
+	if (WARN_ON_ONCE(!test_bit(n, system_vectors)))
 		return;
 	set_intr_gate(n, addr);
 }
@@ -366,6 +364,6 @@ void __init update_intr_gate(unsigned int n, const void *addr)
 void alloc_intr_gate(unsigned int n, const void *addr)
 {
 	BUG_ON(n < FIRST_SYSTEM_VECTOR);
-	if (!test_and_set_bit(n, used_vectors))
+	if (!test_and_set_bit(n, system_vectors))
 		set_intr_gate(n, addr);
 }
diff --git a/arch/x86/kernel/io_delay.c b/arch/x86/kernel/io_delay.c
index 50c89e8a95f2..805b7a341aca 100644
--- a/arch/x86/kernel/io_delay.c
+++ b/arch/x86/kernel/io_delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * I/O delay strategies for inb_p/outb_p
  *
@@ -58,7 +59,7 @@ static int __init dmi_io_delay_0xed_port(const struct dmi_system_id *id)
  * Quirk table for systems that misbehave (lock up, etc.) if port
  * 0x80 is used:
  */
-static struct dmi_system_id __initdata io_delay_0xed_port_dmi_table[] = {
+static const struct dmi_system_id io_delay_0xed_port_dmi_table[] __initconst = {
 	{
 		.callback	= dmi_io_delay_0xed_port,
 		.ident		= "Compaq Presario V6000",
diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c
index 9c3cf0944bce..3feb648781c4 100644
--- a/arch/x86/kernel/ioport.c
+++ b/arch/x86/kernel/ioport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This contains the io-permission bitmap code - written by obz, with changes
  * by Linus. 32/64 bits code unification by Miguel Botón.
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c
index 52089c043160..49cfd9fe7589 100644
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -134,7 +134,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	seq_puts(p, "  Machine check polls\n");
 #endif
 #if IS_ENABLED(CONFIG_HYPERV) || defined(CONFIG_XEN)
-	if (test_bit(HYPERVISOR_CALLBACK_VECTOR, used_vectors)) {
+	if (test_bit(HYPERVISOR_CALLBACK_VECTOR, system_vectors)) {
 		seq_printf(p, "%*s: ", prec, "HYP");
 		for_each_online_cpu(j)
 			seq_printf(p, "%10u ",
@@ -333,105 +333,6 @@ __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs)
 
 
 #ifdef CONFIG_HOTPLUG_CPU
-
-/* These two declarations are only used in check_irq_vectors_for_cpu_disable()
- * below, which is protected by stop_machine().  Putting them on the stack
- * results in a stack frame overflow.  Dynamically allocating could result in a
- * failure so declare these two cpumasks as global.
- */
-static struct cpumask affinity_new, online_new;
-
-/*
- * This cpu is going to be removed and its vectors migrated to the remaining
- * online cpus.  Check to see if there are enough vectors in the remaining cpus.
- * This function is protected by stop_machine().
- */
-int check_irq_vectors_for_cpu_disable(void)
-{
-	unsigned int this_cpu, vector, this_count, count;
-	struct irq_desc *desc;
-	struct irq_data *data;
-	int cpu;
-
-	this_cpu = smp_processor_id();
-	cpumask_copy(&online_new, cpu_online_mask);
-	cpumask_clear_cpu(this_cpu, &online_new);
-
-	this_count = 0;
-	for (vector = FIRST_EXTERNAL_VECTOR; vector < NR_VECTORS; vector++) {
-		desc = __this_cpu_read(vector_irq[vector]);
-		if (IS_ERR_OR_NULL(desc))
-			continue;
-		/*
-		 * Protect against concurrent action removal, affinity
-		 * changes etc.
-		 */
-		raw_spin_lock(&desc->lock);
-		data = irq_desc_get_irq_data(desc);
-		cpumask_copy(&affinity_new,
-			     irq_data_get_affinity_mask(data));
-		cpumask_clear_cpu(this_cpu, &affinity_new);
-
-		/* Do not count inactive or per-cpu irqs. */
-		if (!irq_desc_has_action(desc) || irqd_is_per_cpu(data)) {
-			raw_spin_unlock(&desc->lock);
-			continue;
-		}
-
-		raw_spin_unlock(&desc->lock);
-		/*
-		 * A single irq may be mapped to multiple cpu's
-		 * vector_irq[] (for example IOAPIC cluster mode).  In
-		 * this case we have two possibilities:
-		 *
-		 * 1) the resulting affinity mask is empty; that is
-		 * this the down'd cpu is the last cpu in the irq's
-		 * affinity mask, or
-		 *
-		 * 2) the resulting affinity mask is no longer a
-		 * subset of the online cpus but the affinity mask is
-		 * not zero; that is the down'd cpu is the last online
-		 * cpu in a user set affinity mask.
-		 */
-		if (cpumask_empty(&affinity_new) ||
-		    !cpumask_subset(&affinity_new, &online_new))
-			this_count++;
-	}
-	/* No need to check any further. */
-	if (!this_count)
-		return 0;
-
-	count = 0;
-	for_each_online_cpu(cpu) {
-		if (cpu == this_cpu)
-			continue;
-		/*
-		 * We scan from FIRST_EXTERNAL_VECTOR to first system
-		 * vector. If the vector is marked in the used vectors
-		 * bitmap or an irq is assigned to it, we don't count
-		 * it as available.
-		 *
-		 * As this is an inaccurate snapshot anyway, we can do
-		 * this w/o holding vector_lock.
-		 */
-		for (vector = FIRST_EXTERNAL_VECTOR;
-		     vector < FIRST_SYSTEM_VECTOR; vector++) {
-			if (!test_bit(vector, used_vectors) &&
-			    IS_ERR_OR_NULL(per_cpu(vector_irq, cpu)[vector])) {
-				if (++count == this_count)
-					return 0;
-			}
-		}
-	}
-
-	if (count < this_count) {
-		pr_warn("CPU %d disable failed: CPU has %u vectors assigned and there are only %u available.\n",
-			this_cpu, this_count, count);
-		return -ERANGE;
-	}
-	return 0;
-}
-
 /* A cpu has been removed from cpu_online_mask.  Reset irq affinities. */
 void fixup_irqs(void)
 {
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 1f38d9a4d9de..a83b3346a0e1 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
  *
@@ -64,7 +65,7 @@ static void call_on_stack(void *func, void *stack)
 
 static inline void *current_stack(void)
 {
-	return (void *)(current_stack_pointer() & ~(THREAD_SIZE - 1));
+	return (void *)(current_stack_pointer & ~(THREAD_SIZE - 1));
 }
 
 static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
@@ -88,7 +89,7 @@ static inline int execute_on_irq_stack(int overflow, struct irq_desc *desc)
 
 	/* Save the next esp at the bottom of the stack */
 	prev_esp = (u32 *)irqstk;
-	*prev_esp = current_stack_pointer();
+	*prev_esp = current_stack_pointer;
 
 	if (unlikely(overflow))
 		call_on_stack(print_stack_overflow, isp);
@@ -139,7 +140,7 @@ void do_softirq_own_stack(void)
 
 	/* Push the previous esp onto the stack */
 	prev_esp = (u32 *)irqstk;
-	*prev_esp = current_stack_pointer();
+	*prev_esp = current_stack_pointer;
 
 	call_on_stack(__do_softirq, isp);
 }
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index 3be74fbdeff2..020efbf5786b 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copyright (C) 1992, 1998 Linus Torvalds, Ingo Molnar
  *
diff --git a/arch/x86/kernel/irq_work.c b/arch/x86/kernel/irq_work.c
index 70dee056f92b..80bee7695a20 100644
--- a/arch/x86/kernel/irq_work.c
+++ b/arch/x86/kernel/irq_work.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * x86 specific code for irq_work
  *
diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c
index 1add9e08e83e..8da3e909e967 100644
--- a/arch/x86/kernel/irqinit.c
+++ b/arch/x86/kernel/irqinit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/linkage.h>
 #include <linux/errno.h>
 #include <linux/signal.h>
@@ -60,9 +61,6 @@ void __init init_ISA_irqs(void)
 	struct irq_chip *chip = legacy_pic->chip;
 	int i;
 
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_LOCAL_APIC)
-	init_bsp_APIC();
-#endif
 	legacy_pic->init(0);
 
 	for (i = 0; i < nr_legacy_irqs(); i++)
@@ -93,6 +91,7 @@ void __init native_init_IRQ(void)
 	x86_init.irqs.pre_vector_init();
 
 	idt_setup_apic_and_irq_gates();
+	lapic_assign_system_vectors();
 
 	if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs())
 		setup_irq(2, &irq2);
diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index ab4f491da2a9..e56c95be2808 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * jump label x86 support
  *
diff --git a/arch/x86/kernel/kprobes/common.h b/arch/x86/kernel/kprobes/common.h
index db2182d63ed0..ae38dccf0c8f 100644
--- a/arch/x86/kernel/kprobes/common.h
+++ b/arch/x86/kernel/kprobes/common.h
@@ -1,8 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __X86_KERNEL_KPROBES_COMMON_H
 #define __X86_KERNEL_KPROBES_COMMON_H
 
 /* Kprobes and Optprobes common header */
 
+#include <asm/asm.h>
+
+#ifdef CONFIG_FRAME_POINTER
+# define SAVE_RBP_STRING "	push %" _ASM_BP "\n" \
+			 "	mov  %" _ASM_SP ", %" _ASM_BP "\n"
+#else
+# define SAVE_RBP_STRING "	push %" _ASM_BP "\n"
+#endif
+
 #ifdef CONFIG_X86_64
 #define SAVE_REGS_STRING			\
 	/* Skip cs, ip, orig_ax. */		\
@@ -17,7 +27,7 @@
 	"	pushq %r10\n"			\
 	"	pushq %r11\n"			\
 	"	pushq %rbx\n"			\
-	"	pushq %rbp\n"			\
+	SAVE_RBP_STRING				\
 	"	pushq %r12\n"			\
 	"	pushq %r13\n"			\
 	"	pushq %r14\n"			\
@@ -48,7 +58,7 @@
 	"	pushl %es\n"			\
 	"	pushl %ds\n"			\
 	"	pushl %eax\n"			\
-	"	pushl %ebp\n"			\
+	SAVE_RBP_STRING				\
 	"	pushl %edi\n"			\
 	"	pushl %esi\n"			\
 	"	pushl %edx\n"			\
@@ -75,11 +85,11 @@ extern unsigned long recover_probed_instruction(kprobe_opcode_t *buf,
  * Copy an instruction and adjust the displacement if the instruction
  * uses the %rip-relative addressing mode.
  */
-extern int __copy_instruction(u8 *dest, u8 *src, struct insn *insn);
+extern int __copy_instruction(u8 *dest, u8 *src, u8 *real, struct insn *insn);
 
 /* Generate a relative-jump/call instruction */
-extern void synthesize_reljump(void *from, void *to);
-extern void synthesize_relcall(void *from, void *to);
+extern void synthesize_reljump(void *dest, void *from, void *to);
+extern void synthesize_relcall(void *dest, void *from, void *to);
 
 #ifdef	CONFIG_OPTPROBES
 extern int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter);
diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index f0153714ddac..bd36f3c33cd0 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -119,29 +119,29 @@ struct kretprobe_blackpoint kretprobe_blacklist[] = {
 const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
 
 static nokprobe_inline void
-__synthesize_relative_insn(void *from, void *to, u8 op)
+__synthesize_relative_insn(void *dest, void *from, void *to, u8 op)
 {
 	struct __arch_relative_insn {
 		u8 op;
 		s32 raddr;
 	} __packed *insn;
 
-	insn = (struct __arch_relative_insn *)from;
+	insn = (struct __arch_relative_insn *)dest;
 	insn->raddr = (s32)((long)(to) - ((long)(from) + 5));
 	insn->op = op;
 }
 
 /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
-void synthesize_reljump(void *from, void *to)
+void synthesize_reljump(void *dest, void *from, void *to)
 {
-	__synthesize_relative_insn(from, to, RELATIVEJUMP_OPCODE);
+	__synthesize_relative_insn(dest, from, to, RELATIVEJUMP_OPCODE);
 }
 NOKPROBE_SYMBOL(synthesize_reljump);
 
 /* Insert a call instruction at address 'from', which calls address 'to'.*/
-void synthesize_relcall(void *from, void *to)
+void synthesize_relcall(void *dest, void *from, void *to)
 {
-	__synthesize_relative_insn(from, to, RELATIVECALL_OPCODE);
+	__synthesize_relative_insn(dest, from, to, RELATIVECALL_OPCODE);
 }
 NOKPROBE_SYMBOL(synthesize_relcall);
 
@@ -346,10 +346,11 @@ static int is_IF_modifier(kprobe_opcode_t *insn)
 /*
  * Copy an instruction with recovering modified instruction by kprobes
  * and adjust the displacement if the instruction uses the %rip-relative
- * addressing mode.
+ * addressing mode. Note that since @real will be the final place of copied
+ * instruction, displacement must be adjust by @real, not @dest.
  * This returns the length of copied instruction, or 0 if it has an error.
  */
-int __copy_instruction(u8 *dest, u8 *src, struct insn *insn)
+int __copy_instruction(u8 *dest, u8 *src, u8 *real, struct insn *insn)
 {
 	kprobe_opcode_t buf[MAX_INSN_SIZE];
 	unsigned long recovered_insn =
@@ -387,11 +388,11 @@ int __copy_instruction(u8 *dest, u8 *src, struct insn *insn)
 		 * have given.
 		 */
 		newdisp = (u8 *) src + (s64) insn->displacement.value
-			  - (u8 *) dest;
+			  - (u8 *) real;
 		if ((s64) (s32) newdisp != newdisp) {
 			pr_err("Kprobes error: new displacement does not fit into s32 (%llx)\n", newdisp);
 			pr_err("\tSrc: %p, Dest: %p, old disp: %x\n",
-				src, dest, insn->displacement.value);
+				src, real, insn->displacement.value);
 			return 0;
 		}
 		disp = (u8 *) dest + insn_offset_displacement(insn);
@@ -402,20 +403,38 @@ int __copy_instruction(u8 *dest, u8 *src, struct insn *insn)
 }
 
 /* Prepare reljump right after instruction to boost */
-static void prepare_boost(struct kprobe *p, struct insn *insn)
+static int prepare_boost(kprobe_opcode_t *buf, struct kprobe *p,
+			  struct insn *insn)
 {
+	int len = insn->length;
+
 	if (can_boost(insn, p->addr) &&
-	    MAX_INSN_SIZE - insn->length >= RELATIVEJUMP_SIZE) {
+	    MAX_INSN_SIZE - len >= RELATIVEJUMP_SIZE) {
 		/*
 		 * These instructions can be executed directly if it
 		 * jumps back to correct address.
 		 */
-		synthesize_reljump(p->ainsn.insn + insn->length,
+		synthesize_reljump(buf + len, p->ainsn.insn + len,
 				   p->addr + insn->length);
+		len += RELATIVEJUMP_SIZE;
 		p->ainsn.boostable = true;
 	} else {
 		p->ainsn.boostable = false;
 	}
+
+	return len;
+}
+
+/* Make page to RO mode when allocate it */
+void *alloc_insn_page(void)
+{
+	void *page;
+
+	page = module_alloc(PAGE_SIZE);
+	if (page)
+		set_memory_ro((unsigned long)page & PAGE_MASK, 1);
+
+	return page;
 }
 
 /* Recover page to RW mode before releasing it */
@@ -429,12 +448,11 @@ void free_insn_page(void *page)
 static int arch_copy_kprobe(struct kprobe *p)
 {
 	struct insn insn;
+	kprobe_opcode_t buf[MAX_INSN_SIZE];
 	int len;
 
-	set_memory_rw((unsigned long)p->ainsn.insn & PAGE_MASK, 1);
-
 	/* Copy an instruction with recovering if other optprobe modifies it.*/
-	len = __copy_instruction(p->ainsn.insn, p->addr, &insn);
+	len = __copy_instruction(buf, p->addr, p->ainsn.insn, &insn);
 	if (!len)
 		return -EINVAL;
 
@@ -442,15 +460,16 @@ static int arch_copy_kprobe(struct kprobe *p)
 	 * __copy_instruction can modify the displacement of the instruction,
 	 * but it doesn't affect boostable check.
 	 */
-	prepare_boost(p, &insn);
-
-	set_memory_ro((unsigned long)p->ainsn.insn & PAGE_MASK, 1);
+	len = prepare_boost(buf, p, &insn);
 
 	/* Check whether the instruction modifies Interrupt Flag or not */
-	p->ainsn.if_modifier = is_IF_modifier(p->ainsn.insn);
+	p->ainsn.if_modifier = is_IF_modifier(buf);
 
 	/* Also, displacement change doesn't affect the first byte */
-	p->opcode = p->ainsn.insn[0];
+	p->opcode = buf[0];
+
+	/* OK, write back the instruction(s) into ROX insn buffer */
+	text_poke(p->ainsn.insn, buf, len);
 
 	return 0;
 }
@@ -1080,8 +1099,6 @@ int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	 * raw stack chunk with redzones:
 	 */
 	__memcpy(kcb->jprobes_stack, (kprobe_opcode_t *)addr, MIN_STACK_SIZE(addr));
-	regs->flags &= ~X86_EFLAGS_IF;
-	trace_hardirqs_off();
 	regs->ip = (unsigned long)(jp->entry);
 
 	/*
diff --git a/arch/x86/kernel/kprobes/ftrace.c b/arch/x86/kernel/kprobes/ftrace.c
index 041f7b6dfa0f..8dc0161cec8f 100644
--- a/arch/x86/kernel/kprobes/ftrace.c
+++ b/arch/x86/kernel/kprobes/ftrace.c
@@ -26,7 +26,7 @@
 #include "common.h"
 
 static nokprobe_inline
-int __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
+void __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
 		      struct kprobe_ctlblk *kcb, unsigned long orig_ip)
 {
 	/*
@@ -41,33 +41,31 @@ int __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
 	__this_cpu_write(current_kprobe, NULL);
 	if (orig_ip)
 		regs->ip = orig_ip;
-	return 1;
 }
 
 int skip_singlestep(struct kprobe *p, struct pt_regs *regs,
 		    struct kprobe_ctlblk *kcb)
 {
-	if (kprobe_ftrace(p))
-		return __skip_singlestep(p, regs, kcb, 0);
-	else
-		return 0;
+	if (kprobe_ftrace(p)) {
+		__skip_singlestep(p, regs, kcb, 0);
+		preempt_enable_no_resched();
+		return 1;
+	}
+	return 0;
 }
 NOKPROBE_SYMBOL(skip_singlestep);
 
-/* Ftrace callback handler for kprobes */
+/* Ftrace callback handler for kprobes -- called under preepmt disabed */
 void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
 			   struct ftrace_ops *ops, struct pt_regs *regs)
 {
 	struct kprobe *p;
 	struct kprobe_ctlblk *kcb;
-	unsigned long flags;
-
-	/* Disable irq for emulating a breakpoint and avoiding preempt */
-	local_irq_save(flags);
 
+	/* Preempt is disabled by ftrace */
 	p = get_kprobe((kprobe_opcode_t *)ip);
 	if (unlikely(!p) || kprobe_disabled(p))
-		goto end;
+		return;
 
 	kcb = get_kprobe_ctlblk();
 	if (kprobe_running()) {
@@ -77,17 +75,19 @@ void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
 		/* Kprobe handler expects regs->ip = ip + 1 as breakpoint hit */
 		regs->ip = ip + sizeof(kprobe_opcode_t);
 
+		/* To emulate trap based kprobes, preempt_disable here */
+		preempt_disable();
 		__this_cpu_write(current_kprobe, p);
 		kcb->kprobe_status = KPROBE_HIT_ACTIVE;
-		if (!p->pre_handler || !p->pre_handler(p, regs))
+		if (!p->pre_handler || !p->pre_handler(p, regs)) {
 			__skip_singlestep(p, regs, kcb, orig_ip);
+			preempt_enable_no_resched();
+		}
 		/*
 		 * If pre_handler returns !0, it sets regs->ip and
-		 * resets current kprobe.
+		 * resets current kprobe, and keep preempt count +1.
 		 */
 	}
-end:
-	local_irq_restore(flags);
 }
 NOKPROBE_SYMBOL(kprobe_ftrace_handler);
 
diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c
index 4f98aad38237..e941136e24d8 100644
--- a/arch/x86/kernel/kprobes/opt.c
+++ b/arch/x86/kernel/kprobes/opt.c
@@ -142,11 +142,11 @@ void optprobe_template_func(void);
 STACK_FRAME_NON_STANDARD(optprobe_template_func);
 
 #define TMPL_MOVE_IDX \
-	((long)&optprobe_template_val - (long)&optprobe_template_entry)
+	((long)optprobe_template_val - (long)optprobe_template_entry)
 #define TMPL_CALL_IDX \
-	((long)&optprobe_template_call - (long)&optprobe_template_entry)
+	((long)optprobe_template_call - (long)optprobe_template_entry)
 #define TMPL_END_IDX \
-	((long)&optprobe_template_end - (long)&optprobe_template_entry)
+	((long)optprobe_template_end - (long)optprobe_template_entry)
 
 #define INT3_SIZE sizeof(kprobe_opcode_t)
 
@@ -154,17 +154,15 @@ STACK_FRAME_NON_STANDARD(optprobe_template_func);
 static void
 optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
 {
-	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
-	unsigned long flags;
-
 	/* This is possible if op is under delayed unoptimizing */
 	if (kprobe_disabled(&op->kp))
 		return;
 
-	local_irq_save(flags);
+	preempt_disable();
 	if (kprobe_running()) {
 		kprobes_inc_nmissed_count(&op->kp);
 	} else {
+		struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
 		/* Save skipped registers */
 #ifdef CONFIG_X86_64
 		regs->cs = __KERNEL_CS;
@@ -180,17 +178,17 @@ optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
 		opt_pre_handler(&op->kp, regs);
 		__this_cpu_write(current_kprobe, NULL);
 	}
-	local_irq_restore(flags);
+	preempt_enable_no_resched();
 }
 NOKPROBE_SYMBOL(optimized_callback);
 
-static int copy_optimized_instructions(u8 *dest, u8 *src)
+static int copy_optimized_instructions(u8 *dest, u8 *src, u8 *real)
 {
 	struct insn insn;
 	int len = 0, ret;
 
 	while (len < RELATIVEJUMP_SIZE) {
-		ret = __copy_instruction(dest + len, src + len, &insn);
+		ret = __copy_instruction(dest + len, src + len, real, &insn);
 		if (!ret || !can_boost(&insn, src + len))
 			return -EINVAL;
 		len += ret;
@@ -343,57 +341,66 @@ void arch_remove_optimized_kprobe(struct optimized_kprobe *op)
 int arch_prepare_optimized_kprobe(struct optimized_kprobe *op,
 				  struct kprobe *__unused)
 {
-	u8 *buf;
-	int ret;
+	u8 *buf = NULL, *slot;
+	int ret, len;
 	long rel;
 
 	if (!can_optimize((unsigned long)op->kp.addr))
 		return -EILSEQ;
 
-	op->optinsn.insn = get_optinsn_slot();
-	if (!op->optinsn.insn)
+	buf = kzalloc(MAX_OPTINSN_SIZE, GFP_KERNEL);
+	if (!buf)
 		return -ENOMEM;
 
+	op->optinsn.insn = slot = get_optinsn_slot();
+	if (!slot) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
 	/*
 	 * Verify if the address gap is in 2GB range, because this uses
 	 * a relative jump.
 	 */
-	rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE;
+	rel = (long)slot - (long)op->kp.addr + RELATIVEJUMP_SIZE;
 	if (abs(rel) > 0x7fffffff) {
-		__arch_remove_optimized_kprobe(op, 0);
-		return -ERANGE;
+		ret = -ERANGE;
+		goto err;
 	}
 
-	buf = (u8 *)op->optinsn.insn;
-	set_memory_rw((unsigned long)buf & PAGE_MASK, 1);
+	/* Copy arch-dep-instance from template */
+	memcpy(buf, optprobe_template_entry, TMPL_END_IDX);
 
 	/* Copy instructions into the out-of-line buffer */
-	ret = copy_optimized_instructions(buf + TMPL_END_IDX, op->kp.addr);
-	if (ret < 0) {
-		__arch_remove_optimized_kprobe(op, 0);
-		return ret;
-	}
+	ret = copy_optimized_instructions(buf + TMPL_END_IDX, op->kp.addr,
+					  slot + TMPL_END_IDX);
+	if (ret < 0)
+		goto err;
 	op->optinsn.size = ret;
-
-	/* Copy arch-dep-instance from template */
-	memcpy(buf, &optprobe_template_entry, TMPL_END_IDX);
+	len = TMPL_END_IDX + op->optinsn.size;
 
 	/* Set probe information */
 	synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op);
 
 	/* Set probe function call */
-	synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback);
+	synthesize_relcall(buf + TMPL_CALL_IDX,
+			   slot + TMPL_CALL_IDX, optimized_callback);
 
 	/* Set returning jmp instruction at the tail of out-of-line buffer */
-	synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size,
+	synthesize_reljump(buf + len, slot + len,
 			   (u8 *)op->kp.addr + op->optinsn.size);
-
-	set_memory_ro((unsigned long)buf & PAGE_MASK, 1);
-
-	flush_icache_range((unsigned long) buf,
-			   (unsigned long) buf + TMPL_END_IDX +
-			   op->optinsn.size + RELATIVEJUMP_SIZE);
-	return 0;
+	len += RELATIVEJUMP_SIZE;
+
+	/* We have to use text_poke for instuction buffer because it is RO */
+	text_poke(slot, buf, len);
+	ret = 0;
+out:
+	kfree(buf);
+	return ret;
+
+err:
+	__arch_remove_optimized_kprobe(op, 0);
+	goto out;
 }
 
 /*
diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c
index 4b0592ca9e47..8c1cc08f514f 100644
--- a/arch/x86/kernel/ksysfs.c
+++ b/arch/x86/kernel/ksysfs.c
@@ -299,7 +299,7 @@ static int __init create_setup_data_nodes(struct kobject *parent)
 	return 0;
 
 out_clean_nodes:
-	for (j = i - 1; j > 0; j--)
+	for (j = i - 1; j >= 0; j--)
 		cleanup_setup_data_node(*(kobjp + j));
 	kfree(kobjp);
 out_setup_data_kobj:
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 874827b0d7ca..b40ffbf156c1 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -75,8 +75,8 @@ static int parse_no_kvmclock_vsyscall(char *arg)
 
 early_param("no-kvmclock-vsyscall", parse_no_kvmclock_vsyscall);
 
-static DEFINE_PER_CPU(struct kvm_vcpu_pv_apf_data, apf_reason) __aligned(64);
-static DEFINE_PER_CPU(struct kvm_steal_time, steal_time) __aligned(64);
+static DEFINE_PER_CPU_DECRYPTED(struct kvm_vcpu_pv_apf_data, apf_reason) __aligned(64);
+static DEFINE_PER_CPU_DECRYPTED(struct kvm_steal_time, steal_time) __aligned(64);
 static int has_steal_clock = 0;
 
 /*
@@ -117,7 +117,11 @@ static struct kvm_task_sleep_node *_find_apf_task(struct kvm_task_sleep_head *b,
 	return NULL;
 }
 
-void kvm_async_pf_task_wait(u32 token)
+/*
+ * @interrupt_kernel: Is this called from a routine which interrupts the kernel
+ * 		      (other than user space)?
+ */
+void kvm_async_pf_task_wait(u32 token, int interrupt_kernel)
 {
 	u32 key = hash_32(token, KVM_TASK_SLEEP_HASHBITS);
 	struct kvm_task_sleep_head *b = &async_pf_sleepers[key];
@@ -140,7 +144,10 @@ void kvm_async_pf_task_wait(u32 token)
 
 	n.token = token;
 	n.cpu = smp_processor_id();
-	n.halted = is_idle_task(current) || preempt_count() > 1;
+	n.halted = is_idle_task(current) ||
+		   (IS_ENABLED(CONFIG_PREEMPT_COUNT)
+		    ? preempt_count() > 1 || rcu_preempt_depth()
+		    : interrupt_kernel);
 	init_swait_queue_head(&n.wq);
 	hlist_add_head(&n.link, &b->list);
 	raw_spin_unlock(&b->lock);
@@ -180,7 +187,7 @@ static void apf_task_wake_one(struct kvm_task_sleep_node *n)
 	hlist_del_init(&n->link);
 	if (n->halted)
 		smp_send_reschedule(n->cpu);
-	else if (swait_active(&n->wq))
+	else if (swq_has_sleeper(&n->wq))
 		swake_up(&n->wq);
 }
 
@@ -268,7 +275,7 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
 	case KVM_PV_REASON_PAGE_NOT_PRESENT:
 		/* page is swapped out by the host. */
 		prev_state = exception_enter();
-		kvm_async_pf_task_wait((u32)read_cr2());
+		kvm_async_pf_task_wait((u32)read_cr2(), !user_mode(regs));
 		exception_exit(prev_state);
 		break;
 	case KVM_PV_REASON_PAGE_READY:
@@ -305,7 +312,7 @@ static void kvm_register_steal_time(void)
 		cpu, (unsigned long long) slow_virt_to_phys(st));
 }
 
-static DEFINE_PER_CPU(unsigned long, kvm_apic_eoi) = KVM_PV_EOI_DISABLED;
+static DEFINE_PER_CPU_DECRYPTED(unsigned long, kvm_apic_eoi) = KVM_PV_EOI_DISABLED;
 
 static notrace void kvm_guest_apic_eoi_write(u32 reg, u32 val)
 {
@@ -419,9 +426,42 @@ void kvm_disable_steal_time(void)
 	wrmsr(MSR_KVM_STEAL_TIME, 0, 0);
 }
 
+static inline void __set_percpu_decrypted(void *ptr, unsigned long size)
+{
+	early_set_memory_decrypted((unsigned long) ptr, size);
+}
+
+/*
+ * Iterate through all possible CPUs and map the memory region pointed
+ * by apf_reason, steal_time and kvm_apic_eoi as decrypted at once.
+ *
+ * Note: we iterate through all possible CPUs to ensure that CPUs
+ * hotplugged will have their per-cpu variable already mapped as
+ * decrypted.
+ */
+static void __init sev_map_percpu_data(void)
+{
+	int cpu;
+
+	if (!sev_active())
+		return;
+
+	for_each_possible_cpu(cpu) {
+		__set_percpu_decrypted(&per_cpu(apf_reason, cpu), sizeof(apf_reason));
+		__set_percpu_decrypted(&per_cpu(steal_time, cpu), sizeof(steal_time));
+		__set_percpu_decrypted(&per_cpu(kvm_apic_eoi, cpu), sizeof(kvm_apic_eoi));
+	}
+}
+
 #ifdef CONFIG_SMP
 static void __init kvm_smp_prepare_boot_cpu(void)
 {
+	/*
+	 * Map the per-cpu variables as decrypted before kvm_guest_cpu_init()
+	 * shares the guest physical address with the hypervisor.
+	 */
+	sev_map_percpu_data();
+
 	kvm_guest_cpu_init();
 	native_smp_prepare_boot_cpu();
 	kvm_spinlock_init();
@@ -458,7 +498,7 @@ static void __init kvm_apf_trap_init(void)
 	update_intr_gate(X86_TRAP_PF, async_page_fault);
 }
 
-void __init kvm_guest_init(void)
+static void __init kvm_guest_init(void)
 {
 	int i;
 
@@ -489,6 +529,7 @@ void __init kvm_guest_init(void)
 				      kvm_cpu_online, kvm_cpu_down_prepare) < 0)
 		pr_err("kvm_guest: Failed to install cpu hotplug callbacks\n");
 #else
+	sev_map_percpu_data();
 	kvm_guest_cpu_init();
 #endif
 
@@ -537,12 +578,13 @@ static uint32_t __init kvm_detect(void)
 	return kvm_cpuid_base();
 }
 
-const struct hypervisor_x86 x86_hyper_kvm __refconst = {
+const __initconst struct hypervisor_x86 x86_hyper_kvm = {
 	.name			= "KVM",
 	.detect			= kvm_detect,
-	.x2apic_available	= kvm_para_available,
+	.type			= X86_HYPER_KVM,
+	.init.guest_late_init	= kvm_guest_init,
+	.init.x2apic_available	= kvm_para_available,
 };
-EXPORT_SYMBOL_GPL(x86_hyper_kvm);
 
 static __init int activate_jump_labels(void)
 {
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index d88967659098..77b492c2d658 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -27,6 +27,7 @@
 #include <linux/sched.h>
 #include <linux/sched/clock.h>
 
+#include <asm/mem_encrypt.h>
 #include <asm/x86_init.h>
 #include <asm/reboot.h>
 #include <asm/kvmclock.h>
@@ -45,7 +46,7 @@ early_param("no-kvmclock", parse_no_kvmclock);
 
 /* The hypervisor will put information about time periodically here */
 static struct pvclock_vsyscall_time_info *hv_clock;
-static struct pvclock_wall_clock wall_clock;
+static struct pvclock_wall_clock *wall_clock;
 
 struct pvclock_vsyscall_time_info *pvclock_pvti_cpu0_va(void)
 {
@@ -64,22 +65,22 @@ static void kvm_get_wallclock(struct timespec *now)
 	int low, high;
 	int cpu;
 
-	low = (int)__pa_symbol(&wall_clock);
-	high = ((u64)__pa_symbol(&wall_clock) >> 32);
+	low = (int)slow_virt_to_phys(wall_clock);
+	high = ((u64)slow_virt_to_phys(wall_clock) >> 32);
 
 	native_write_msr(msr_kvm_wall_clock, low, high);
 
 	cpu = get_cpu();
 
 	vcpu_time = &hv_clock[cpu].pvti;
-	pvclock_read_wallclock(&wall_clock, vcpu_time, now);
+	pvclock_read_wallclock(wall_clock, vcpu_time, now);
 
 	put_cpu();
 }
 
 static int kvm_set_wallclock(const struct timespec *now)
 {
-	return -1;
+	return -ENODEV;
 }
 
 static u64 kvm_clock_read(void)
@@ -249,11 +250,39 @@ static void kvm_shutdown(void)
 	native_machine_shutdown();
 }
 
+static phys_addr_t __init kvm_memblock_alloc(phys_addr_t size,
+					     phys_addr_t align)
+{
+	phys_addr_t mem;
+
+	mem = memblock_alloc(size, align);
+	if (!mem)
+		return 0;
+
+	if (sev_active()) {
+		if (early_set_memory_decrypted((unsigned long)__va(mem), size))
+			goto e_free;
+	}
+
+	return mem;
+e_free:
+	memblock_free(mem, size);
+	return 0;
+}
+
+static void __init kvm_memblock_free(phys_addr_t addr, phys_addr_t size)
+{
+	if (sev_active())
+		early_set_memory_encrypted((unsigned long)__va(addr), size);
+
+	memblock_free(addr, size);
+}
+
 void __init kvmclock_init(void)
 {
 	struct pvclock_vcpu_time_info *vcpu_time;
-	unsigned long mem;
-	int size, cpu;
+	unsigned long mem, mem_wall_clock;
+	int size, cpu, wall_clock_size;
 	u8 flags;
 
 	size = PAGE_ALIGN(sizeof(struct pvclock_vsyscall_time_info)*NR_CPUS);
@@ -267,21 +296,35 @@ void __init kvmclock_init(void)
 	} else if (!(kvmclock && kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE)))
 		return;
 
-	printk(KERN_INFO "kvm-clock: Using msrs %x and %x",
-		msr_kvm_system_time, msr_kvm_wall_clock);
+	wall_clock_size = PAGE_ALIGN(sizeof(struct pvclock_wall_clock));
+	mem_wall_clock = kvm_memblock_alloc(wall_clock_size, PAGE_SIZE);
+	if (!mem_wall_clock)
+		return;
 
-	mem = memblock_alloc(size, PAGE_SIZE);
-	if (!mem)
+	wall_clock = __va(mem_wall_clock);
+	memset(wall_clock, 0, wall_clock_size);
+
+	mem = kvm_memblock_alloc(size, PAGE_SIZE);
+	if (!mem) {
+		kvm_memblock_free(mem_wall_clock, wall_clock_size);
+		wall_clock = NULL;
 		return;
+	}
+
 	hv_clock = __va(mem);
 	memset(hv_clock, 0, size);
 
 	if (kvm_register_clock("primary cpu clock")) {
 		hv_clock = NULL;
-		memblock_free(mem, size);
+		kvm_memblock_free(mem, size);
+		kvm_memblock_free(mem_wall_clock, wall_clock_size);
+		wall_clock = NULL;
 		return;
 	}
 
+	printk(KERN_INFO "kvm-clock: Using msrs %x and %x",
+		msr_kvm_system_time, msr_kvm_wall_clock);
+
 	if (kvm_para_has_feature(KVM_FEATURE_CLOCKSOURCE_STABLE_BIT))
 		pvclock_set_flags(PVCLOCK_TSC_STABLE_BIT);
 
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index f0e64db18ac8..1c1eae961340 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 1992 Krishna Balasubramanian and Linus Torvalds
  * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
@@ -12,6 +13,7 @@
 #include <linux/string.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
+#include <linux/syscalls.h>
 #include <linux/slab.h>
 #include <linux/vmalloc.h>
 #include <linux/uaccess.h>
@@ -101,7 +103,7 @@ static void finalize_ldt_struct(struct ldt_struct *ldt)
 static void install_ldt(struct mm_struct *current_mm,
 			struct ldt_struct *ldt)
 {
-	/* Synchronizes with lockless_dereference in load_mm_ldt. */
+	/* Synchronizes with READ_ONCE in load_mm_ldt. */
 	smp_store_release(&current_mm->context.ldt, ldt);
 
 	/* Activate the LDT for all CPUs using current_mm. */
@@ -294,8 +296,8 @@ out:
 	return error;
 }
 
-asmlinkage int sys_modify_ldt(int func, void __user *ptr,
-			      unsigned long bytecount)
+SYSCALL_DEFINE3(modify_ldt, int , func , void __user * , ptr ,
+		unsigned long , bytecount)
 {
 	int ret = -ENOSYS;
 
@@ -313,5 +315,14 @@ asmlinkage int sys_modify_ldt(int func, void __user *ptr,
 		ret = write_ldt(ptr, bytecount, 0);
 		break;
 	}
-	return ret;
+	/*
+	 * The SYSCALL_DEFINE() macros give us an 'unsigned long'
+	 * return type, but tht ABI for sys_modify_ldt() expects
+	 * 'int'.  This cast gives us an int-sized value in %rax
+	 * for the return code.  The 'unsigned' is necessary so
+	 * the compiler does not try to sign-extend the negative
+	 * return codes into the high half of the register when
+	 * taking the value from int->long.
+	 */
+	return (unsigned int)ret;
 }
diff --git a/arch/x86/kernel/mmconf-fam10h_64.c b/arch/x86/kernel/mmconf-fam10h_64.c
index f4c886d9165c..b5cb49e57df8 100644
--- a/arch/x86/kernel/mmconf-fam10h_64.c
+++ b/arch/x86/kernel/mmconf-fam10h_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AMD Family 10h mmconfig enablement
  */
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 62e7d70aadd5..da0c160e5589 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -172,19 +172,27 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 		case R_X86_64_NONE:
 			break;
 		case R_X86_64_64:
+			if (*(u64 *)loc != 0)
+				goto invalid_relocation;
 			*(u64 *)loc = val;
 			break;
 		case R_X86_64_32:
+			if (*(u32 *)loc != 0)
+				goto invalid_relocation;
 			*(u32 *)loc = val;
 			if (val != *(u32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_32S:
+			if (*(s32 *)loc != 0)
+				goto invalid_relocation;
 			*(s32 *)loc = val;
 			if ((s64)val != *(s32 *)loc)
 				goto overflow;
 			break;
 		case R_X86_64_PC32:
+			if (*(u32 *)loc != 0)
+				goto invalid_relocation;
 			val -= (u64)loc;
 			*(u32 *)loc = val;
 #if 0
@@ -200,6 +208,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 	}
 	return 0;
 
+invalid_relocation:
+	pr_err("x86/modules: Skipping invalid relocation target, existing value is nonzero for type %d, loc %p, val %Lx\n",
+	       (int)ELF64_R_TYPE(rel[i].r_info), loc, val);
+	return -ENOEXEC;
+
 overflow:
 	pr_err("overflow in relocation type %d val %Lx\n",
 	       (int)ELF64_R_TYPE(rel[i].r_info), val);
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 5cbb3177ed17..410c5dadcee3 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Intel Multiprocessor Specification 1.1 and 1.4
  *	compliant MP-table parsing routines.
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index 35aafc95e4b8..18bc9b51ac9b 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -105,7 +105,7 @@ static void nmi_max_handler(struct irq_work *w)
 {
 	struct nmiaction *a = container_of(w, struct nmiaction, irq_work);
 	int remainder_ns, decimal_msecs;
-	u64 whole_msecs = ACCESS_ONCE(a->max_duration);
+	u64 whole_msecs = READ_ONCE(a->max_duration);
 
 	remainder_ns = do_div(whole_msecs, (1000 * 1000));
 	decimal_msecs = remainder_ns / 1000;
diff --git a/arch/x86/kernel/nmi_selftest.c b/arch/x86/kernel/nmi_selftest.c
index d27f8d84c4ff..a1a96df3dff1 100644
--- a/arch/x86/kernel/nmi_selftest.c
+++ b/arch/x86/kernel/nmi_selftest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/x86/kernel/nmi-selftest.c
  *
diff --git a/arch/x86/kernel/paravirt-spinlocks.c b/arch/x86/kernel/paravirt-spinlocks.c
index 8f2d1c9d43a8..71f2d1125ec0 100644
--- a/arch/x86/kernel/paravirt-spinlocks.c
+++ b/arch/x86/kernel/paravirt-spinlocks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Split spinlock implementation out into its own file, so it can be
  * compiled in a FTRACE-compatible way.
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index a14df9eecfed..041096bdef86 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -115,8 +115,18 @@ unsigned paravirt_patch_jmp(void *insnbuf, const void *target,
 	return 5;
 }
 
-/* Neat trick to map patch type back to the call within the
- * corresponding structure. */
+DEFINE_STATIC_KEY_TRUE(virt_spin_lock_key);
+
+void __init native_pv_lock_init(void)
+{
+	if (!static_cpu_has(X86_FEATURE_HYPERVISOR))
+		static_branch_disable(&virt_spin_lock_key);
+}
+
+/*
+ * Neat trick to map patch type back to the call within the
+ * corresponding structure.
+ */
 static void *get_call_destination(u8 type)
 {
 	struct paravirt_patch_template tmpl = {
@@ -327,7 +337,6 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
 	.set_debugreg = native_set_debugreg,
 	.read_cr0 = native_read_cr0,
 	.write_cr0 = native_write_cr0,
-	.read_cr4 = native_read_cr4,
 	.write_cr4 = native_write_cr4,
 #ifdef CONFIG_X86_64
 	.read_cr8 = native_read_cr8,
@@ -343,7 +352,6 @@ __visible struct pv_cpu_ops pv_cpu_ops = {
 	.set_ldt = native_set_ldt,
 	.load_gdt = native_load_gdt,
 	.load_idt = native_load_idt,
-	.store_idt = native_store_idt,
 	.store_tr = native_store_tr,
 	.load_tls = native_load_tls,
 #ifdef CONFIG_X86_64
@@ -411,8 +419,6 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
 	.set_pte = native_set_pte,
 	.set_pte_at = native_set_pte_at,
 	.set_pmd = native_set_pmd,
-	.set_pmd_at = native_set_pmd_at,
-	.pte_update = paravirt_nop,
 
 	.ptep_modify_prot_start = __ptep_modify_prot_start,
 	.ptep_modify_prot_commit = __ptep_modify_prot_commit,
@@ -424,7 +430,6 @@ struct pv_mmu_ops pv_mmu_ops __ro_after_init = {
 	.pmd_clear = native_pmd_clear,
 #endif
 	.set_pud = native_set_pud,
-	.set_pud_at = native_set_pud_at,
 
 	.pmd_val = PTE_IDENT,
 	.make_pmd = PTE_IDENT,
diff --git a/arch/x86/kernel/paravirt_patch_32.c b/arch/x86/kernel/paravirt_patch_32.c
index 553acbbb4d32..758e69d72ebf 100644
--- a/arch/x86/kernel/paravirt_patch_32.c
+++ b/arch/x86/kernel/paravirt_patch_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/paravirt.h>
 
 DEF_NATIVE(pv_irq_ops, irq_disable, "cli");
diff --git a/arch/x86/kernel/paravirt_patch_64.c b/arch/x86/kernel/paravirt_patch_64.c
index 11aaf1eaa0e4..ac0be8283325 100644
--- a/arch/x86/kernel/paravirt_patch_64.c
+++ b/arch/x86/kernel/paravirt_patch_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/paravirt.h>
 #include <asm/asm-offsets.h>
 #include <linux/stringify.h>
diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c
index 5286a4a92cf7..35c461f21815 100644
--- a/arch/x86/kernel/pci-calgary_64.c
+++ b/arch/x86/kernel/pci-calgary_64.c
@@ -898,10 +898,9 @@ static void calioc2_dump_error_regs(struct iommu_table *tbl)
 	       PHB_ROOT_COMPLEX_STATUS);
 }
 
-static void calgary_watchdog(unsigned long data)
+static void calgary_watchdog(struct timer_list *t)
 {
-	struct pci_dev *dev = (struct pci_dev *)data;
-	struct iommu_table *tbl = pci_iommu(dev->bus);
+	struct iommu_table *tbl = from_timer(tbl, t, watchdog_timer);
 	void __iomem *bbar = tbl->bbar;
 	u32 val32;
 	void __iomem *target;
@@ -1016,8 +1015,7 @@ static void __init calgary_enable_translation(struct pci_dev *dev)
 	writel(cpu_to_be32(val32), target);
 	readl(target); /* flush */
 
-	setup_timer(&tbl->watchdog_timer, &calgary_watchdog,
-		    (unsigned long)dev);
+	timer_setup(&tbl->watchdog_timer, calgary_watchdog, 0);
 	mod_timer(&tbl->watchdog_timer, jiffies);
 }
 
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 0accc2404b92..599d7462eccc 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/dma-mapping.h>
 #include <linux/dma-debug.h>
 #include <linux/dmar.h>
diff --git a/arch/x86/kernel/pci-iommu_table.c b/arch/x86/kernel/pci-iommu_table.c
index f712dfdf1357..4dfd90a75e63 100644
--- a/arch/x86/kernel/pci-iommu_table.c
+++ b/arch/x86/kernel/pci-iommu_table.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/dma-mapping.h>
 #include <asm/iommu_table.h>
 #include <linux/string.h>
diff --git a/arch/x86/kernel/pci-nommu.c b/arch/x86/kernel/pci-nommu.c
index 4fc3cb60ea11..b0caae27e1b7 100644
--- a/arch/x86/kernel/pci-nommu.c
+++ b/arch/x86/kernel/pci-nommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Fallback functions when the main IOMMU code is not compiled in. This
    code is roughly equivalent to i386. */
 #include <linux/dma-mapping.h>
diff --git a/arch/x86/kernel/pci-swiotlb.c b/arch/x86/kernel/pci-swiotlb.c
index 677077510e30..53bd05ea90d8 100644
--- a/arch/x86/kernel/pci-swiotlb.c
+++ b/arch/x86/kernel/pci-swiotlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Glue code to lib/swiotlb.c */
 
 #include <linux/pci.h>
diff --git a/arch/x86/kernel/pcspeaker.c b/arch/x86/kernel/pcspeaker.c
index a311ffcaad16..da5190a1ea16 100644
--- a/arch/x86/kernel/pcspeaker.c
+++ b/arch/x86/kernel/pcspeaker.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/platform_device.h>
 #include <linux/err.h>
 #include <linux/init.h>
diff --git a/arch/x86/kernel/perf_regs.c b/arch/x86/kernel/perf_regs.c
index 587d887f7f17..e47b2dbbdef3 100644
--- a/arch/x86/kernel/perf_regs.c
+++ b/arch/x86/kernel/perf_regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
diff --git a/arch/x86/kernel/platform-quirks.c b/arch/x86/kernel/platform-quirks.c
index 502a77d0adb0..39a59299bfa0 100644
--- a/arch/x86/kernel/platform-quirks.c
+++ b/arch/x86/kernel/platform-quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 
diff --git a/arch/x86/kernel/pmem.c b/arch/x86/kernel/pmem.c
index 0c5315d322c8..6b07faaa1579 100644
--- a/arch/x86/kernel/pmem.c
+++ b/arch/x86/kernel/pmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015, Christoph Hellwig.
  * Copyright (c) 2015, Intel Corporation.
@@ -6,7 +7,7 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 
-static int found(u64 start, u64 end, void *data)
+static int found(struct resource *res, void *data)
 {
 	return 1;
 }
diff --git a/arch/x86/kernel/probe_roms.c b/arch/x86/kernel/probe_roms.c
index 963e3fb56437..ee0286390a4c 100644
--- a/arch/x86/kernel/probe_roms.c
+++ b/arch/x86/kernel/probe_roms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/uaccess.h>
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index bd6b85fac666..97fb3e5737f5 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/errno.h>
@@ -48,7 +49,13 @@
  */
 __visible DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, cpu_tss) = {
 	.x86_tss = {
-		.sp0 = TOP_OF_INIT_STACK,
+		/*
+		 * .sp0 is only used when entering ring 0 from a lower
+		 * privilege level.  Since the init task never runs anything
+		 * but ring 0 code, there is no need for a valid value here.
+		 * Poison it.
+		 */
+		.sp0 = (1UL << (BITS_PER_LONG-1)) + 1,
 #ifdef CONFIG_X86_32
 		.ss0 = __KERNEL_DS,
 		.ss1 = __KERNEL_CS,
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 11966251cd42..45bf0c5f93e1 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -284,9 +284,11 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 
 	/*
 	 * Reload esp0 and cpu_current_top_of_stack.  This changes
-	 * current_thread_info().
+	 * current_thread_info().  Refresh the SYSENTER configuration in
+	 * case prev or next is vm86.
 	 */
-	load_sp0(tss, next);
+	update_sp0(next_p);
+	refresh_sysenter_cs(next);
 	this_cpu_write(cpu_current_top_of_stack,
 		       (unsigned long)task_stack_page(next_p) +
 		       THREAD_SIZE);
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 302e7b2572d1..eeeb34f85c25 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -274,7 +274,6 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long sp,
 	struct inactive_task_frame *frame;
 	struct task_struct *me = current;
 
-	p->thread.sp0 = (unsigned long)task_stack_page(p) + THREAD_SIZE;
 	childregs = task_pt_regs(p);
 	fork_frame = container_of(childregs, struct fork_frame, regs);
 	frame = &fork_frame->frame;
@@ -464,8 +463,8 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	 */
 	this_cpu_write(current_task, next_p);
 
-	/* Reload esp0 and ss1.  This changes current_thread_info(). */
-	load_sp0(tss, next);
+	/* Reload sp0. */
+	update_sp0(next_p);
 
 	/*
 	 * Now maybe reload the debug registers and handle I/O bitmaps
diff --git a/arch/x86/kernel/quirks.c b/arch/x86/kernel/quirks.c
index eaa591cfd98b..697a4ce04308 100644
--- a/arch/x86/kernel/quirks.c
+++ b/arch/x86/kernel/quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains work-arounds for x86 and x86_64 platform bugs.
  */
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 54984b142641..2126b9d27c34 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/export.h>
@@ -105,6 +106,10 @@ void __noreturn machine_real_restart(unsigned int type)
 	load_cr3(initial_page_table);
 #else
 	write_cr3(real_mode_header->trampoline_pgd);
+
+	/* Exiting long mode will fail if CR4.PCIDE is set. */
+	if (static_cpu_has(X86_FEATURE_PCID))
+		cr4_clear_bits(X86_CR4_PCIDE);
 #endif
 
 	/* Jump to the identity-mapped low memory code */
@@ -150,7 +155,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
 /*
  * This is a single dmi_table handling all reboot quirks.
  */
-static struct dmi_system_id __initdata reboot_dmi_table[] = {
+static const struct dmi_system_id reboot_dmi_table[] __initconst = {
 
 	/* Acer */
 	{	/* Handle reboot issue on Acer Aspire one */
diff --git a/arch/x86/kernel/reboot_fixups_32.c b/arch/x86/kernel/reboot_fixups_32.c
index c8e41e90f59c..b7c0f142d026 100644
--- a/arch/x86/kernel/reboot_fixups_32.c
+++ b/arch/x86/kernel/reboot_fixups_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is a good place to put board specific reboot fixups.
  *
diff --git a/arch/x86/kernel/resource.c b/arch/x86/kernel/resource.c
index 5ab3895516ac..9b9fb7882c20 100644
--- a/arch/x86/kernel/resource.c
+++ b/arch/x86/kernel/resource.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ioport.h>
 #include <asm/e820/api.h>
 
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 5b21cb7d84d6..69ac9cb9cac6 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * RTC related functions
  */
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d84afb0a322d..8af2e8d0c0a1 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -136,18 +136,6 @@ RESERVE_BRK(dmi_alloc, 65536);
 static __initdata unsigned long _brk_start = (unsigned long)__brk_base;
 unsigned long _brk_end = (unsigned long)__brk_base;
 
-#ifdef CONFIG_X86_64
-int default_cpu_present_to_apicid(int mps_cpu)
-{
-	return __default_cpu_present_to_apicid(mps_cpu);
-}
-
-int default_check_phys_apicid_present(int phys_apicid)
-{
-	return __default_check_phys_apicid_present(phys_apicid);
-}
-#endif
-
 struct boot_params boot_params;
 
 /*
@@ -380,9 +368,11 @@ static void __init reserve_initrd(void)
 	 * If SME is active, this memory will be marked encrypted by the
 	 * kernel when it is accessed (including relocation). However, the
 	 * ramdisk image was loaded decrypted by the bootloader, so make
-	 * sure that it is encrypted before accessing it.
+	 * sure that it is encrypted before accessing it. For SEV the
+	 * ramdisk will already be encrypted, so only do this for SME.
 	 */
-	sme_early_encrypt(ramdisk_image, ramdisk_end - ramdisk_image);
+	if (sme_active())
+		sme_early_encrypt(ramdisk_image, ramdisk_end - ramdisk_image);
 
 	initrd_start = 0;
 
@@ -822,26 +812,6 @@ dump_kernel_offset(struct notifier_block *self, unsigned long v, void *p)
 	return 0;
 }
 
-static void __init simple_udelay_calibration(void)
-{
-	unsigned int tsc_khz, cpu_khz;
-	unsigned long lpj;
-
-	if (!boot_cpu_has(X86_FEATURE_TSC))
-		return;
-
-	cpu_khz = x86_platform.calibrate_cpu();
-	tsc_khz = x86_platform.calibrate_tsc();
-
-	tsc_khz = tsc_khz ? : cpu_khz;
-	if (!tsc_khz)
-		return;
-
-	lpj = tsc_khz * 1000;
-	do_div(lpj, HZ);
-	loops_per_jiffy = lpj;
-}
-
 /*
  * Determine if we were loaded by an EFI loader.  If so, then we have also been
  * passed the efi memmap, systab, etc., so we should use these data structures
@@ -1045,12 +1015,10 @@ void __init setup_arch(char **cmdline_p)
 
 	/*
 	 * VMware detection requires dmi to be available, so this
-	 * needs to be done after dmi_scan_machine, for the BP.
+	 * needs to be done after dmi_scan_machine(), for the boot CPU.
 	 */
 	init_hypervisor_platform();
 
-	simple_udelay_calibration();
-
 	x86_init.resources.probe_roms();
 
 	/* after parse_early_param, so could debug it */
@@ -1135,9 +1103,6 @@ void __init setup_arch(char **cmdline_p)
 	memblock_set_current_limit(ISA_END_ADDRESS);
 	e820__memblock_setup();
 
-	if (!early_xdbc_setup_hardware())
-		early_xdbc_register_console();
-
 	reserve_bios_regions();
 
 	if (efi_enabled(EFI_MEMMAP)) {
@@ -1178,8 +1143,11 @@ void __init setup_arch(char **cmdline_p)
 	 * with the current CR4 value.  This may not be necessary, but
 	 * auditing all the early-boot CR4 manipulation would be needed to
 	 * rule it out.
+	 *
+	 * Mask off features that don't work outside long mode (just
+	 * PCIDE for now).
 	 */
-	mmu_cr4_features = __read_cr4();
+	mmu_cr4_features = __read_cr4() & ~X86_CR4_PCIDE;
 
 	memblock_set_current_limit(get_max_mapped());
 
@@ -1240,6 +1208,10 @@ void __init setup_arch(char **cmdline_p)
 	kvmclock_init();
 #endif
 
+	tsc_early_delay_calibrate();
+	if (!early_xdbc_setup_hardware())
+		early_xdbc_register_console();
+
 	x86_init.paging.pagetable_init();
 
 	kasan_init();
@@ -1291,7 +1263,7 @@ void __init setup_arch(char **cmdline_p)
 
 	io_apic_init_mappings();
 
-	kvm_guest_init();
+	x86_init.hyper.guest_late_init();
 
 	e820__reserve_resources();
 	e820__register_nosave_regions(max_low_pfn);
diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c
index 28dafed6c682..497aa766fab3 100644
--- a/arch/x86/kernel/setup_percpu.c
+++ b/arch/x86/kernel/setup_percpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index e04442345fc0..b9e00e8f1c9b 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *  Copyright (C) 2000, 2001, 2002 Andi Kleen SuSE Labs
@@ -263,7 +264,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
 		sp = (unsigned long) ka->sa.sa_restorer;
 	}
 
-	if (fpu->fpstate_active) {
+	if (fpu->initialized) {
 		sp = fpu__alloc_mathframe(sp, IS_ENABLED(CONFIG_X86_32),
 					  &buf_fx, &math_size);
 		*fpstate = (void __user *)sp;
@@ -279,7 +280,7 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
 		return (void __user *)-1L;
 
 	/* save i387 and extended state */
-	if (fpu->fpstate_active &&
+	if (fpu->initialized &&
 	    copy_fpstate_to_sigframe(*fpstate, (void __user *)buf_fx, math_size) < 0)
 		return (void __user *)-1L;
 
@@ -755,7 +756,7 @@ handle_signal(struct ksignal *ksig, struct pt_regs *regs)
 		/*
 		 * Ensure the signal handler starts with the new fpu state.
 		 */
-		if (fpu->fpstate_active)
+		if (fpu->initialized)
 			fpu__clear(fpu);
 	}
 	signal_setup_done(failed, ksig, stepping);
diff --git a/arch/x86/kernel/signal_compat.c b/arch/x86/kernel/signal_compat.c
index ab9feb5887b1..8c6da1a643da 100644
--- a/arch/x86/kernel/signal_compat.c
+++ b/arch/x86/kernel/signal_compat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compat.h>
 #include <linux/uaccess.h>
 #include <linux/ptrace.h>
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index cd6622c3204e..5f59e6bee123 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -77,6 +77,7 @@
 #include <asm/i8259.h>
 #include <asm/realmode.h>
 #include <asm/misc.h>
+#include <asm/qspinlock.h>
 
 /* Number of siblings per CPU package */
 int smp_num_siblings = 1;
@@ -194,6 +195,12 @@ static void smp_callin(void)
 	smp_store_cpu_info(cpuid);
 
 	/*
+	 * The topology information must be up to date before
+	 * calibrate_delay() and notify_cpu_starting().
+	 */
+	set_cpu_sibling_map(raw_smp_processor_id());
+
+	/*
 	 * Get our bogomips.
 	 * Update loops_per_jiffy in cpu_data. Previous call to
 	 * smp_store_cpu_info() stored a value that is close but not as
@@ -203,11 +210,6 @@ static void smp_callin(void)
 	cpu_data(cpuid).loops_per_jiffy = loops_per_jiffy;
 	pr_debug("Stack at about %p\n", &cpuid);
 
-	/*
-	 * This must be done before setting cpu_online_mask
-	 * or calling notify_cpu_starting.
-	 */
-	set_cpu_sibling_map(raw_smp_processor_id());
 	wmb();
 
 	notify_cpu_starting(cpuid);
@@ -226,16 +228,12 @@ static int enable_start_cpu0;
 static void notrace start_secondary(void *unused)
 {
 	/*
-	 * Don't put *anything* before cpu_init(), SMP booting is too
-	 * fragile that we want to limit the things done here to the
-	 * most necessary things.
+	 * Don't put *anything* except direct CPU state initialization
+	 * before cpu_init(), SMP booting is too fragile that we want to
+	 * limit the things done here to the most necessary things.
 	 */
-	cpu_init();
-	x86_cpuinit.early_percpu_clock_init();
-	preempt_disable();
-	smp_callin();
-
-	enable_start_cpu0 = 0;
+	if (boot_cpu_has(X86_FEATURE_PCID))
+		__write_cr4(__read_cr4() | X86_CR4_PCIDE);
 
 #ifdef CONFIG_X86_32
 	/* switch away from the initial page table */
@@ -243,22 +241,29 @@ static void notrace start_secondary(void *unused)
 	__flush_tlb_all();
 #endif
 
+	cpu_init();
+	x86_cpuinit.early_percpu_clock_init();
+	preempt_disable();
+	smp_callin();
+
+	enable_start_cpu0 = 0;
+
 	/* otherwise gcc will move up smp_processor_id before the cpu_init */
 	barrier();
 	/*
-	 * Check TSC synchronization with the BP:
+	 * Check TSC synchronization with the boot CPU:
 	 */
 	check_tsc_sync_target();
 
 	/*
-	 * Lock vector_lock and initialize the vectors on this cpu
-	 * before setting the cpu online. We must set it online with
-	 * vector_lock held to prevent a concurrent setup/teardown
-	 * from seeing a half valid vector space.
+	 * Lock vector_lock, set CPU online and bring the vector
+	 * allocator online. Online must be set with vector_lock held
+	 * to prevent a concurrent irq setup/teardown from seeing a
+	 * half valid vector space.
 	 */
 	lock_vector_lock();
-	setup_vector_irq(smp_processor_id());
 	set_cpu_online(smp_processor_id(), true);
+	lapic_online();
 	unlock_vector_lock();
 	cpu_set_state_online(smp_processor_id());
 	x86_platform.nmi_init();
@@ -958,8 +963,7 @@ void common_cpu_up(unsigned int cpu, struct task_struct *idle)
 #ifdef CONFIG_X86_32
 	/* Stack for startup_32 can be just as for start_secondary onwards */
 	irq_ctx_init(cpu);
-	per_cpu(cpu_current_top_of_stack, cpu) =
-		(unsigned long)task_stack_page(idle) + THREAD_SIZE;
+	per_cpu(cpu_current_top_of_stack, cpu) = task_top_of_stack(idle);
 #else
 	initial_gs = per_cpu_offset(cpu);
 #endif
@@ -1091,7 +1095,7 @@ int native_cpu_up(unsigned int cpu, struct task_struct *tidle)
 	unsigned long flags;
 	int err, ret = 0;
 
-	WARN_ON(irqs_disabled());
+	lockdep_assert_irqs_enabled();
 
 	pr_debug("++++++++++++++++++++=_---CPU UP  %u\n", cpu);
 
@@ -1187,17 +1191,10 @@ static __init void disable_smp(void)
 	cpumask_set_cpu(0, topology_core_cpumask(0));
 }
 
-enum {
-	SMP_OK,
-	SMP_NO_CONFIG,
-	SMP_NO_APIC,
-	SMP_FORCE_UP,
-};
-
 /*
  * Various sanity checks.
  */
-static int __init smp_sanity_check(unsigned max_cpus)
+static void __init smp_sanity_check(void)
 {
 	preempt_disable();
 
@@ -1235,16 +1232,6 @@ static int __init smp_sanity_check(unsigned max_cpus)
 	}
 
 	/*
-	 * If we couldn't find an SMP configuration at boot time,
-	 * get out of here now!
-	 */
-	if (!smp_found_config && !acpi_lapic) {
-		preempt_enable();
-		pr_notice("SMP motherboard not detected\n");
-		return SMP_NO_CONFIG;
-	}
-
-	/*
 	 * Should not be necessary because the MP table should list the boot
 	 * CPU too, but we do it for the sake of robustness anyway.
 	 */
@@ -1254,29 +1241,6 @@ static int __init smp_sanity_check(unsigned max_cpus)
 		physid_set(hard_smp_processor_id(), phys_cpu_present_map);
 	}
 	preempt_enable();
-
-	/*
-	 * If we couldn't find a local APIC, then get out of here now!
-	 */
-	if (APIC_INTEGRATED(boot_cpu_apic_version) &&
-	    !boot_cpu_has(X86_FEATURE_APIC)) {
-		if (!disable_apic) {
-			pr_err("BIOS bug, local APIC #%d not detected!...\n",
-				boot_cpu_physical_apicid);
-			pr_err("... forcing use of dummy APIC emulation (tell your hw vendor)\n");
-		}
-		return SMP_NO_APIC;
-	}
-
-	/*
-	 * If SMP should be disabled, then really disable it!
-	 */
-	if (!max_cpus) {
-		pr_info("SMP mode deactivated\n");
-		return SMP_FORCE_UP;
-	}
-
-	return SMP_OK;
 }
 
 static void __init smp_cpu_index_default(void)
@@ -1291,9 +1255,18 @@ static void __init smp_cpu_index_default(void)
 	}
 }
 
+static void __init smp_get_logical_apicid(void)
+{
+	if (x2apic_mode)
+		cpu0_logical_apicid = apic_read(APIC_LDR);
+	else
+		cpu0_logical_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
+}
+
 /*
- * Prepare for SMP bootup.  The MP table or ACPI has been read
- * earlier.  Just do some sanity checking here and enable APIC mode.
+ * Prepare for SMP bootup.
+ * @max_cpus: configured maximum number of CPUs, It is a legacy parameter
+ *            for common interface support.
  */
 void __init native_smp_prepare_cpus(unsigned int max_cpus)
 {
@@ -1325,35 +1298,33 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
 
 	set_cpu_sibling_map(0);
 
-	switch (smp_sanity_check(max_cpus)) {
-	case SMP_NO_CONFIG:
-		disable_smp();
-		if (APIC_init_uniprocessor())
-			pr_notice("Local APIC not detected. Using dummy APIC emulation.\n");
-		return;
-	case SMP_NO_APIC:
+	smp_sanity_check();
+
+	switch (apic_intr_mode) {
+	case APIC_PIC:
+	case APIC_VIRTUAL_WIRE_NO_CONFIG:
 		disable_smp();
 		return;
-	case SMP_FORCE_UP:
+	case APIC_SYMMETRIC_IO_NO_ROUTING:
 		disable_smp();
-		apic_bsp_setup(false);
+		/* Setup local timer */
+		x86_init.timers.setup_percpu_clockev();
 		return;
-	case SMP_OK:
+	case APIC_VIRTUAL_WIRE:
+	case APIC_SYMMETRIC_IO:
 		break;
 	}
 
-	if (read_apic_id() != boot_cpu_physical_apicid) {
-		panic("Boot APIC ID in local APIC unexpected (%d vs %d)",
-		     read_apic_id(), boot_cpu_physical_apicid);
-		/* Or can we switch back to PIC here? */
-	}
+	/* Setup local timer */
+	x86_init.timers.setup_percpu_clockev();
 
-	default_setup_apic_routing();
-	cpu0_logical_apicid = apic_bsp_setup(false);
+	smp_get_logical_apicid();
 
 	pr_info("CPU0: ");
 	print_cpu_info(&cpu_data(0));
 
+	native_pv_lock_init();
+
 	uv_system_init();
 
 	set_mtrr_aps_delayed_init();
@@ -1392,7 +1363,6 @@ void __init native_smp_cpus_done(unsigned int max_cpus)
 
 	nmi_selftest();
 	impress_friends();
-	setup_ioapic_dest();
 	mtrr_aps_init();
 }
 
@@ -1551,13 +1521,14 @@ void cpu_disable_common(void)
 	remove_cpu_from_maps(cpu);
 	unlock_vector_lock();
 	fixup_irqs();
+	lapic_offline();
 }
 
 int native_cpu_disable(void)
 {
 	int ret;
 
-	ret = check_irq_vectors_for_cpu_disable();
+	ret = lapic_can_unplug_cpu();
 	if (ret)
 		return ret;
 
diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c
index 8dabd7bf1673..77835bc021c7 100644
--- a/arch/x86/kernel/stacktrace.c
+++ b/arch/x86/kernel/stacktrace.c
@@ -30,7 +30,7 @@ static int save_stack_address(struct stack_trace *trace, unsigned long addr,
 	return 0;
 }
 
-static void __save_stack_trace(struct stack_trace *trace,
+static void noinline __save_stack_trace(struct stack_trace *trace,
 			       struct task_struct *task, struct pt_regs *regs,
 			       bool nosched)
 {
@@ -56,6 +56,7 @@ static void __save_stack_trace(struct stack_trace *trace,
  */
 void save_stack_trace(struct stack_trace *trace)
 {
+	trace->skip++;
 	__save_stack_trace(trace, current, NULL, false);
 }
 EXPORT_SYMBOL_GPL(save_stack_trace);
@@ -70,6 +71,8 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 	if (!try_get_task_stack(tsk))
 		return;
 
+	if (tsk == current)
+		trace->skip++;
 	__save_stack_trace(trace, tsk, NULL, true);
 
 	put_task_stack(tsk);
@@ -88,8 +91,9 @@ EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
 	}							\
 })
 
-static int __save_stack_trace_reliable(struct stack_trace *trace,
-				       struct task_struct *task)
+static int __always_inline
+__save_stack_trace_reliable(struct stack_trace *trace,
+			    struct task_struct *task)
 {
 	struct unwind_state state;
 	struct pt_regs *regs;
diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 5ee663836c08..60d2c3798ba2 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * x86 single-step support code, common to 32-bit and 64-bit.
  */
diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c
index 73e4d28112f8..a63fe77b3217 100644
--- a/arch/x86/kernel/sys_x86_64.c
+++ b/arch/x86/kernel/sys_x86_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/sched/mm.h>
diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c
index e0754cdbad37..749d189f8cd4 100644
--- a/arch/x86/kernel/time.c
+++ b/arch/x86/kernel/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (c) 1991,1992,1995  Linus Torvalds
  *  Copyright (c) 1994  Alan Modra
@@ -84,6 +85,11 @@ void __init hpet_time_init(void)
 static __init void x86_late_time_init(void)
 {
 	x86_init.timers.timer_init();
+	/*
+	 * After PIT/HPET timers init, select and setup
+	 * the final interrupt mode for delivering IRQs.
+	 */
+	x86_init.irqs.intr_mode_init();
 	tsc_init();
 }
 
diff --git a/arch/x86/kernel/tls.c b/arch/x86/kernel/tls.c
index a106b9719c58..9a9c9b076955 100644
--- a/arch/x86/kernel/tls.c
+++ b/arch/x86/kernel/tls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
diff --git a/arch/x86/kernel/trace_clock.c b/arch/x86/kernel/trace_clock.c
index 80bb24d9b880..b8e7abe00b06 100644
--- a/arch/x86/kernel/trace_clock.c
+++ b/arch/x86/kernel/trace_clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * X86 trace clocks
  */
diff --git a/arch/x86/kernel/tracepoint.c b/arch/x86/kernel/tracepoint.c
index c6636d1f60b9..5bd30c442794 100644
--- a/arch/x86/kernel/tracepoint.c
+++ b/arch/x86/kernel/tracepoint.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Code for supporting irq vector tracepoints.
  *
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 34ea3651362e..b7b0f74a2150 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -60,6 +60,7 @@
 #include <asm/trace/mpx.h>
 #include <asm/mpx.h>
 #include <asm/vm86.h>
+#include <asm/umip.h>
 
 #ifdef CONFIG_X86_64
 #include <asm/x86_init.h>
@@ -71,7 +72,7 @@
 #include <asm/proto.h>
 #endif
 
-DECLARE_BITMAP(used_vectors, NR_VECTORS);
+DECLARE_BITMAP(system_vectors, NR_VECTORS);
 
 static inline void cond_local_irq_enable(struct pt_regs *regs)
 {
@@ -141,8 +142,7 @@ void ist_begin_non_atomic(struct pt_regs *regs)
 	 * will catch asm bugs and any attempt to use ist_preempt_enable
 	 * from double_fault.
 	 */
-	BUG_ON((unsigned long)(current_top_of_stack() -
-			       current_stack_pointer()) >= THREAD_SIZE);
+	BUG_ON(!on_thread_stack());
 
 	preempt_enable_no_resched();
 }
@@ -209,9 +209,6 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
 		if (fixup_exception(regs, trapnr))
 			return 0;
 
-		if (fixup_bug(regs, trapnr))
-			return 0;
-
 		tsk->thread.error_code = error_code;
 		tsk->thread.trap_nr = trapnr;
 		die(str, regs, error_code);
@@ -292,6 +289,13 @@ static void do_error_trap(struct pt_regs *regs, long error_code, char *str,
 
 	RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU");
 
+	/*
+	 * WARN*()s end up here; fix them up before we call the
+	 * notifier chain.
+	 */
+	if (!user_mode(regs) && fixup_bug(regs, trapnr))
+		return;
+
 	if (notify_die(DIE_TRAP, str, regs, error_code, trapnr, signr) !=
 			NOTIFY_STOP) {
 		cond_local_irq_enable(regs);
@@ -514,6 +518,11 @@ do_general_protection(struct pt_regs *regs, long error_code)
 	RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU");
 	cond_local_irq_enable(regs);
 
+	if (static_cpu_has(X86_FEATURE_UMIP)) {
+		if (user_mode(regs) && fixup_umip_exception(regs))
+			return;
+	}
+
 	if (v8086_mode(regs)) {
 		local_irq_enable();
 		handle_vm86_fault((struct kernel_vm86_regs *) regs, error_code);
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 796d96bb0821..8ea117f8142e 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -112,7 +112,7 @@ static void cyc2ns_data_init(struct cyc2ns_data *data)
 	data->cyc2ns_offset = 0;
 }
 
-static void cyc2ns_init(int cpu)
+static void __init cyc2ns_init(int cpu)
 {
 	struct cyc2ns *c2n = &per_cpu(cyc2ns, cpu);
 
@@ -812,13 +812,13 @@ unsigned long native_calibrate_cpu(void)
 	return tsc_pit_min;
 }
 
-int recalibrate_cpu_khz(void)
+void recalibrate_cpu_khz(void)
 {
 #ifndef CONFIG_SMP
 	unsigned long cpu_khz_old = cpu_khz;
 
 	if (!boot_cpu_has(X86_FEATURE_TSC))
-		return -ENODEV;
+		return;
 
 	cpu_khz = x86_platform.calibrate_cpu();
 	tsc_khz = x86_platform.calibrate_tsc();
@@ -828,10 +828,6 @@ int recalibrate_cpu_khz(void)
 		cpu_khz = tsc_khz;
 	cpu_data(0).loops_per_jiffy = cpufreq_scale(cpu_data(0).loops_per_jiffy,
 						    cpu_khz_old, cpu_khz);
-
-	return 0;
-#else
-	return -ENODEV;
 #endif
 }
 
@@ -959,17 +955,21 @@ core_initcall(cpufreq_register_tsc_scaling);
 /*
  * If ART is present detect the numerator:denominator to convert to TSC
  */
-static void detect_art(void)
+static void __init detect_art(void)
 {
 	unsigned int unused[2];
 
 	if (boot_cpu_data.cpuid_level < ART_CPUID_LEAF)
 		return;
 
-	/* Don't enable ART in a VM, non-stop TSC and TSC_ADJUST required */
+	/*
+	 * Don't enable ART in a VM, non-stop TSC and TSC_ADJUST required,
+	 * and the TSC counter resets must not occur asynchronously.
+	 */
 	if (boot_cpu_has(X86_FEATURE_HYPERVISOR) ||
 	    !boot_cpu_has(X86_FEATURE_NONSTOP_TSC) ||
-	    !boot_cpu_has(X86_FEATURE_TSC_ADJUST))
+	    !boot_cpu_has(X86_FEATURE_TSC_ADJUST) ||
+	    tsc_async_resets)
 		return;
 
 	cpuid(ART_CPUID_LEAF, &art_to_tsc_denominator,
@@ -1263,6 +1263,25 @@ static int __init init_tsc_clocksource(void)
  */
 device_initcall(init_tsc_clocksource);
 
+void __init tsc_early_delay_calibrate(void)
+{
+	unsigned long lpj;
+
+	if (!boot_cpu_has(X86_FEATURE_TSC))
+		return;
+
+	cpu_khz = x86_platform.calibrate_cpu();
+	tsc_khz = x86_platform.calibrate_tsc();
+
+	tsc_khz = tsc_khz ? : cpu_khz;
+	if (!tsc_khz)
+		return;
+
+	lpj = tsc_khz * 1000;
+	do_div(lpj, HZ);
+	loops_per_jiffy = lpj;
+}
+
 void __init tsc_init(void)
 {
 	u64 lpj, cyc;
@@ -1346,12 +1365,10 @@ void __init tsc_init(void)
 unsigned long calibrate_delay_is_known(void)
 {
 	int sibling, cpu = smp_processor_id();
-	struct cpumask *mask = topology_core_cpumask(cpu);
-
-	if (!tsc_disabled && !cpu_has(&cpu_data(cpu), X86_FEATURE_CONSTANT_TSC))
-		return 0;
+	int constant_tsc = cpu_has(&cpu_data(cpu), X86_FEATURE_CONSTANT_TSC);
+	const struct cpumask *mask = topology_core_cpumask(cpu);
 
-	if (!mask)
+	if (tsc_disabled || !constant_tsc || !mask)
 		return 0;
 
 	sibling = cpumask_any_but(mask, cpu);
diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c
index 7842371bc9e4..ec534f978867 100644
--- a/arch/x86/kernel/tsc_sync.c
+++ b/arch/x86/kernel/tsc_sync.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * check TSC synchronization.
  *
@@ -30,6 +31,20 @@ struct tsc_adjust {
 
 static DEFINE_PER_CPU(struct tsc_adjust, tsc_adjust);
 
+/*
+ * TSC's on different sockets may be reset asynchronously.
+ * This may cause the TSC ADJUST value on socket 0 to be NOT 0.
+ */
+bool __read_mostly tsc_async_resets;
+
+void mark_tsc_async_resets(char *reason)
+{
+	if (tsc_async_resets)
+		return;
+	tsc_async_resets = true;
+	pr_info("tsc: Marking TSC async resets true due to %s\n", reason);
+}
+
 void tsc_verify_tsc_adjust(bool resume)
 {
 	struct tsc_adjust *adj = this_cpu_ptr(&tsc_adjust);
@@ -38,6 +53,10 @@ void tsc_verify_tsc_adjust(bool resume)
 	if (!boot_cpu_has(X86_FEATURE_TSC_ADJUST))
 		return;
 
+	/* Skip unnecessary error messages if TSC already unstable */
+	if (check_tsc_unstable())
+		return;
+
 	/* Rate limit the MSR check */
 	if (!resume && time_before(jiffies, adj->nextcheck))
 		return;
@@ -71,12 +90,22 @@ static void tsc_sanitize_first_cpu(struct tsc_adjust *cur, s64 bootval,
 	 * non zero. We don't do that on non boot cpus because physical
 	 * hotplug should have set the ADJUST register to a value > 0 so
 	 * the TSC is in sync with the already running cpus.
+	 *
+	 * Also don't force the ADJUST value to zero if that is a valid value
+	 * for socket 0 as determined by the system arch.  This is required
+	 * when multiple sockets are reset asynchronously with each other
+	 * and socket 0 may not have an TSC ADJUST value of 0.
 	 */
 	if (bootcpu && bootval != 0) {
-		pr_warn(FW_BUG "TSC ADJUST: CPU%u: %lld force to 0\n", cpu,
-			bootval);
-		wrmsrl(MSR_IA32_TSC_ADJUST, 0);
-		bootval = 0;
+		if (likely(!tsc_async_resets)) {
+			pr_warn(FW_BUG "TSC ADJUST: CPU%u: %lld force to 0\n",
+				cpu, bootval);
+			wrmsrl(MSR_IA32_TSC_ADJUST, 0);
+			bootval = 0;
+		} else {
+			pr_info("TSC ADJUST: CPU%u: %lld NOT forced to 0\n",
+				cpu, bootval);
+		}
 	}
 	cur->adjusted = bootval;
 }
@@ -90,6 +119,10 @@ bool __init tsc_store_and_check_tsc_adjust(bool bootcpu)
 	if (!boot_cpu_has(X86_FEATURE_TSC_ADJUST))
 		return false;
 
+	/* Skip unnecessary error messages if TSC already unstable */
+	if (check_tsc_unstable())
+		return false;
+
 	rdmsrl(MSR_IA32_TSC_ADJUST, bootval);
 	cur->bootval = bootval;
 	cur->nextcheck = jiffies + HZ;
@@ -118,6 +151,13 @@ bool tsc_store_and_check_tsc_adjust(bool bootcpu)
 	cur->warned = false;
 
 	/*
+	 * If a non-zero TSC value for socket 0 may be valid then the default
+	 * adjusted value cannot assumed to be zero either.
+	 */
+	if (tsc_async_resets)
+		cur->adjusted = bootval;
+
+	/*
 	 * Check whether this CPU is the first in a package to come up. In
 	 * this case do not check the boot value against another package
 	 * because the new package might have been physically hotplugged,
@@ -138,10 +178,9 @@ bool tsc_store_and_check_tsc_adjust(bool bootcpu)
 	 * Compare the boot value and complain if it differs in the
 	 * package.
 	 */
-	if (bootval != ref->bootval) {
-		pr_warn(FW_BUG "TSC ADJUST differs: Reference CPU%u: %lld CPU%u: %lld\n",
-			refcpu, ref->bootval, cpu, bootval);
-	}
+	if (bootval != ref->bootval)
+		printk_once(FW_BUG "TSC ADJUST differs within socket(s), fixing all errors\n");
+
 	/*
 	 * The TSC_ADJUST values in a package must be the same. If the boot
 	 * value on this newly upcoming CPU differs from the adjustment
@@ -149,8 +188,6 @@ bool tsc_store_and_check_tsc_adjust(bool bootcpu)
 	 * adjusted value.
 	 */
 	if (bootval != ref->adjusted) {
-		pr_warn("TSC ADJUST synchronize: Reference CPU%u: %lld CPU%u: %lld\n",
-			refcpu, ref->adjusted, cpu, bootval);
 		cur->adjusted = ref->adjusted;
 		wrmsrl(MSR_IA32_TSC_ADJUST, ref->adjusted);
 	}
diff --git a/arch/x86/kernel/umip.c b/arch/x86/kernel/umip.c
new file mode 100644
index 000000000000..6ba82be68cff
--- /dev/null
+++ b/arch/x86/kernel/umip.c
@@ -0,0 +1,366 @@
+/*
+ * umip.c Emulation for instruction protected by the Intel User-Mode
+ * Instruction Prevention feature
+ *
+ * Copyright (c) 2017, Intel Corporation.
+ * Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
+ */
+
+#include <linux/uaccess.h>
+#include <asm/umip.h>
+#include <asm/traps.h>
+#include <asm/insn.h>
+#include <asm/insn-eval.h>
+#include <linux/ratelimit.h>
+
+#undef pr_fmt
+#define pr_fmt(fmt) "umip: " fmt
+
+/** DOC: Emulation for User-Mode Instruction Prevention (UMIP)
+ *
+ * The feature User-Mode Instruction Prevention present in recent Intel
+ * processor prevents a group of instructions (sgdt, sidt, sldt, smsw, and str)
+ * from being executed with CPL > 0. Otherwise, a general protection fault is
+ * issued.
+ *
+ * Rather than relaying to the user space the general protection fault caused by
+ * the UMIP-protected instructions (in the form of a SIGSEGV signal), it can be
+ * trapped and emulate the result of such instructions to provide dummy values.
+ * This allows to both conserve the current kernel behavior and not reveal the
+ * system resources that UMIP intends to protect (i.e., the locations of the
+ * global descriptor and interrupt descriptor tables, the segment selectors of
+ * the local descriptor table, the value of the task state register and the
+ * contents of the CR0 register).
+ *
+ * This emulation is needed because certain applications (e.g., WineHQ and
+ * DOSEMU2) rely on this subset of instructions to function.
+ *
+ * The instructions protected by UMIP can be split in two groups. Those which
+ * return a kernel memory address (sgdt and sidt) and those which return a
+ * value (sldt, str and smsw).
+ *
+ * For the instructions that return a kernel memory address, applications
+ * such as WineHQ rely on the result being located in the kernel memory space,
+ * not the actual location of the table. The result is emulated as a hard-coded
+ * value that, lies close to the top of the kernel memory. The limit for the GDT
+ * and the IDT are set to zero.
+ *
+ * Given that sldt and str are not commonly used in programs that run on WineHQ
+ * or DOSEMU2, they are not emulated.
+ *
+ * The instruction smsw is emulated to return the value that the register CR0
+ * has at boot time as set in the head_32.
+ *
+ * Also, emulation is provided only for 32-bit processes; 64-bit processes
+ * that attempt to use the instructions that UMIP protects will receive the
+ * SIGSEGV signal issued as a consequence of the general protection fault.
+ *
+ * Care is taken to appropriately emulate the results when segmentation is
+ * used. That is, rather than relying on USER_DS and USER_CS, the function
+ * insn_get_addr_ref() inspects the segment descriptor pointed by the
+ * registers in pt_regs. This ensures that we correctly obtain the segment
+ * base address and the address and operand sizes even if the user space
+ * application uses a local descriptor table.
+ */
+
+#define UMIP_DUMMY_GDT_BASE 0xfffe0000
+#define UMIP_DUMMY_IDT_BASE 0xffff0000
+
+/*
+ * The SGDT and SIDT instructions store the contents of the global descriptor
+ * table and interrupt table registers, respectively. The destination is a
+ * memory operand of X+2 bytes. X bytes are used to store the base address of
+ * the table and 2 bytes are used to store the limit. In 32-bit processes, the
+ * only processes for which emulation is provided, X has a value of 4.
+ */
+#define UMIP_GDT_IDT_BASE_SIZE 4
+#define UMIP_GDT_IDT_LIMIT_SIZE 2
+
+#define	UMIP_INST_SGDT	0	/* 0F 01 /0 */
+#define	UMIP_INST_SIDT	1	/* 0F 01 /1 */
+#define	UMIP_INST_SMSW	3	/* 0F 01 /4 */
+
+/**
+ * identify_insn() - Identify a UMIP-protected instruction
+ * @insn:	Instruction structure with opcode and ModRM byte.
+ *
+ * From the opcode and ModRM.reg in @insn identify, if any, a UMIP-protected
+ * instruction that can be emulated.
+ *
+ * Returns:
+ *
+ * On success, a constant identifying a specific UMIP-protected instruction that
+ * can be emulated.
+ *
+ * -EINVAL on error or when not an UMIP-protected instruction that can be
+ * emulated.
+ */
+static int identify_insn(struct insn *insn)
+{
+	/* By getting modrm we also get the opcode. */
+	insn_get_modrm(insn);
+
+	if (!insn->modrm.nbytes)
+		return -EINVAL;
+
+	/* All the instructions of interest start with 0x0f. */
+	if (insn->opcode.bytes[0] != 0xf)
+		return -EINVAL;
+
+	if (insn->opcode.bytes[1] == 0x1) {
+		switch (X86_MODRM_REG(insn->modrm.value)) {
+		case 0:
+			return UMIP_INST_SGDT;
+		case 1:
+			return UMIP_INST_SIDT;
+		case 4:
+			return UMIP_INST_SMSW;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	/* SLDT AND STR are not emulated */
+	return -EINVAL;
+}
+
+/**
+ * emulate_umip_insn() - Emulate UMIP instructions and return dummy values
+ * @insn:	Instruction structure with operands
+ * @umip_inst:	A constant indicating the instruction to emulate
+ * @data:	Buffer into which the dummy result is stored
+ * @data_size:	Size of the emulated result
+ *
+ * Emulate an instruction protected by UMIP and provide a dummy result. The
+ * result of the emulation is saved in @data. The size of the results depends
+ * on both the instruction and type of operand (register vs memory address).
+ * The size of the result is updated in @data_size. Caller is responsible
+ * of providing a @data buffer of at least UMIP_GDT_IDT_BASE_SIZE +
+ * UMIP_GDT_IDT_LIMIT_SIZE bytes.
+ *
+ * Returns:
+ *
+ * 0 on success, -EINVAL on error while emulating.
+ */
+static int emulate_umip_insn(struct insn *insn, int umip_inst,
+			     unsigned char *data, int *data_size)
+{
+	unsigned long dummy_base_addr, dummy_value;
+	unsigned short dummy_limit = 0;
+
+	if (!data || !data_size || !insn)
+		return -EINVAL;
+	/*
+	 * These two instructions return the base address and limit of the
+	 * global and interrupt descriptor table, respectively. According to the
+	 * Intel Software Development manual, the base address can be 24-bit,
+	 * 32-bit or 64-bit. Limit is always 16-bit. If the operand size is
+	 * 16-bit, the returned value of the base address is supposed to be a
+	 * zero-extended 24-byte number. However, it seems that a 32-byte number
+	 * is always returned irrespective of the operand size.
+	 */
+	if (umip_inst == UMIP_INST_SGDT || umip_inst == UMIP_INST_SIDT) {
+		/* SGDT and SIDT do not use registers operands. */
+		if (X86_MODRM_MOD(insn->modrm.value) == 3)
+			return -EINVAL;
+
+		if (umip_inst == UMIP_INST_SGDT)
+			dummy_base_addr = UMIP_DUMMY_GDT_BASE;
+		else
+			dummy_base_addr = UMIP_DUMMY_IDT_BASE;
+
+		*data_size = UMIP_GDT_IDT_LIMIT_SIZE + UMIP_GDT_IDT_BASE_SIZE;
+
+		memcpy(data + 2, &dummy_base_addr, UMIP_GDT_IDT_BASE_SIZE);
+		memcpy(data, &dummy_limit, UMIP_GDT_IDT_LIMIT_SIZE);
+
+	} else if (umip_inst == UMIP_INST_SMSW) {
+		dummy_value = CR0_STATE;
+
+		/*
+		 * Even though the CR0 register has 4 bytes, the number
+		 * of bytes to be copied in the result buffer is determined
+		 * by whether the operand is a register or a memory location.
+		 * If operand is a register, return as many bytes as the operand
+		 * size. If operand is memory, return only the two least
+		 * siginificant bytes of CR0.
+		 */
+		if (X86_MODRM_MOD(insn->modrm.value) == 3)
+			*data_size = insn->opnd_bytes;
+		else
+			*data_size = 2;
+
+		memcpy(data, &dummy_value, *data_size);
+	/* STR and SLDT  are not emulated */
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * force_sig_info_umip_fault() - Force a SIGSEGV with SEGV_MAPERR
+ * @addr:	Address that caused the signal
+ * @regs:	Register set containing the instruction pointer
+ *
+ * Force a SIGSEGV signal with SEGV_MAPERR as the error code. This function is
+ * intended to be used to provide a segmentation fault when the result of the
+ * UMIP emulation could not be copied to the user space memory.
+ *
+ * Returns: none
+ */
+static void force_sig_info_umip_fault(void __user *addr, struct pt_regs *regs)
+{
+	siginfo_t info;
+	struct task_struct *tsk = current;
+
+	tsk->thread.cr2		= (unsigned long)addr;
+	tsk->thread.error_code	= X86_PF_USER | X86_PF_WRITE;
+	tsk->thread.trap_nr	= X86_TRAP_PF;
+
+	info.si_signo	= SIGSEGV;
+	info.si_errno	= 0;
+	info.si_code	= SEGV_MAPERR;
+	info.si_addr	= addr;
+	force_sig_info(SIGSEGV, &info, tsk);
+
+	if (!(show_unhandled_signals && unhandled_signal(tsk, SIGSEGV)))
+		return;
+
+	pr_err_ratelimited("%s[%d] umip emulation segfault ip:%lx sp:%lx error:%x in %lx\n",
+			   tsk->comm, task_pid_nr(tsk), regs->ip,
+			   regs->sp, X86_PF_USER | X86_PF_WRITE,
+			   regs->ip);
+}
+
+/**
+ * fixup_umip_exception() - Fixup a general protection fault caused by UMIP
+ * @regs:	Registers as saved when entering the #GP handler
+ *
+ * The instructions sgdt, sidt, str, smsw, sldt cause a general protection
+ * fault if executed with CPL > 0 (i.e., from user space). If the offending
+ * user-space process is not in long mode, this function fixes the exception
+ * up and provides dummy results for sgdt, sidt and smsw; str and sldt are not
+ * fixed up. Also long mode user-space processes are not fixed up.
+ *
+ * If operands are memory addresses, results are copied to user-space memory as
+ * indicated by the instruction pointed by eIP using the registers indicated in
+ * the instruction operands. If operands are registers, results are copied into
+ * the context that was saved when entering kernel mode.
+ *
+ * Returns:
+ *
+ * True if emulation was successful; false if not.
+ */
+bool fixup_umip_exception(struct pt_regs *regs)
+{
+	int not_copied, nr_copied, reg_offset, dummy_data_size, umip_inst;
+	unsigned long seg_base = 0, *reg_addr;
+	/* 10 bytes is the maximum size of the result of UMIP instructions */
+	unsigned char dummy_data[10] = { 0 };
+	unsigned char buf[MAX_INSN_SIZE];
+	void __user *uaddr;
+	struct insn insn;
+	char seg_defs;
+
+	if (!regs)
+		return false;
+
+	/* Do not emulate 64-bit processes. */
+	if (user_64bit_mode(regs))
+		return false;
+
+	/*
+	 * If not in user-space long mode, a custom code segment could be in
+	 * use. This is true in protected mode (if the process defined a local
+	 * descriptor table), or virtual-8086 mode. In most of the cases
+	 * seg_base will be zero as in USER_CS.
+	 */
+	if (!user_64bit_mode(regs))
+		seg_base = insn_get_seg_base(regs, INAT_SEG_REG_CS);
+
+	if (seg_base == -1L)
+		return false;
+
+	not_copied = copy_from_user(buf, (void __user *)(seg_base + regs->ip),
+				    sizeof(buf));
+	nr_copied = sizeof(buf) - not_copied;
+
+	/*
+	 * The copy_from_user above could have failed if user code is protected
+	 * by a memory protection key. Give up on emulation in such a case.
+	 * Should we issue a page fault?
+	 */
+	if (!nr_copied)
+		return false;
+
+	insn_init(&insn, buf, nr_copied, user_64bit_mode(regs));
+
+	/*
+	 * Override the default operand and address sizes with what is specified
+	 * in the code segment descriptor. The instruction decoder only sets
+	 * the address size it to either 4 or 8 address bytes and does nothing
+	 * for the operand bytes. This OK for most of the cases, but we could
+	 * have special cases where, for instance, a 16-bit code segment
+	 * descriptor is used.
+	 * If there is an address override prefix, the instruction decoder
+	 * correctly updates these values, even for 16-bit defaults.
+	 */
+	seg_defs = insn_get_code_seg_params(regs);
+	if (seg_defs == -EINVAL)
+		return false;
+
+	insn.addr_bytes = INSN_CODE_SEG_ADDR_SZ(seg_defs);
+	insn.opnd_bytes = INSN_CODE_SEG_OPND_SZ(seg_defs);
+
+	insn_get_length(&insn);
+	if (nr_copied < insn.length)
+		return false;
+
+	umip_inst = identify_insn(&insn);
+	if (umip_inst < 0)
+		return false;
+
+	if (emulate_umip_insn(&insn, umip_inst, dummy_data, &dummy_data_size))
+		return false;
+
+	/*
+	 * If operand is a register, write result to the copy of the register
+	 * value that was pushed to the stack when entering into kernel mode.
+	 * Upon exit, the value we write will be restored to the actual hardware
+	 * register.
+	 */
+	if (X86_MODRM_MOD(insn.modrm.value) == 3) {
+		reg_offset = insn_get_modrm_rm_off(&insn, regs);
+
+		/*
+		 * Negative values are usually errors. In memory addressing,
+		 * the exception is -EDOM. Since we expect a register operand,
+		 * all negative values are errors.
+		 */
+		if (reg_offset < 0)
+			return false;
+
+		reg_addr = (unsigned long *)((unsigned long)regs + reg_offset);
+		memcpy(reg_addr, dummy_data, dummy_data_size);
+	} else {
+		uaddr = insn_get_addr_ref(&insn, regs);
+		if ((unsigned long)uaddr == -1L)
+			return false;
+
+		nr_copied = copy_to_user(uaddr, dummy_data, dummy_data_size);
+		if (nr_copied  > 0) {
+			/*
+			 * If copy fails, send a signal and tell caller that
+			 * fault was fixed up.
+			 */
+			force_sig_info_umip_fault(uaddr, regs);
+			return true;
+		}
+	}
+
+	/* increase IP to let the program keep going */
+	regs->ip += insn.length;
+	return true;
+}
diff --git a/arch/x86/kernel/unwind_frame.c b/arch/x86/kernel/unwind_frame.c
index d145a0b1f529..3dc26f95d46e 100644
--- a/arch/x86/kernel/unwind_frame.c
+++ b/arch/x86/kernel/unwind_frame.c
@@ -44,7 +44,8 @@ static void unwind_dump(struct unwind_state *state)
 			state->stack_info.type, state->stack_info.next_sp,
 			state->stack_mask, state->graph_idx);
 
-	for (sp = state->orig_sp; sp; sp = PTR_ALIGN(stack_info.next_sp, sizeof(long))) {
+	for (sp = PTR_ALIGN(state->orig_sp, sizeof(long)); sp;
+	     sp = PTR_ALIGN(stack_info.next_sp, sizeof(long))) {
 		if (get_stack_info(sp, state->task, &stack_info, &visit_mask))
 			break;
 
@@ -174,6 +175,7 @@ static bool is_last_task_frame(struct unwind_state *state)
  * This determines if the frame pointer actually contains an encoded pointer to
  * pt_regs on the stack.  See ENCODE_FRAME_POINTER.
  */
+#ifdef CONFIG_X86_64
 static struct pt_regs *decode_frame_pointer(unsigned long *bp)
 {
 	unsigned long regs = (unsigned long)bp;
@@ -183,6 +185,23 @@ static struct pt_regs *decode_frame_pointer(unsigned long *bp)
 
 	return (struct pt_regs *)(regs & ~0x1);
 }
+#else
+static struct pt_regs *decode_frame_pointer(unsigned long *bp)
+{
+	unsigned long regs = (unsigned long)bp;
+
+	if (regs & 0x80000000)
+		return NULL;
+
+	return (struct pt_regs *)(regs | 0x80000000);
+}
+#endif
+
+#ifdef CONFIG_X86_32
+#define KERNEL_REGS_SIZE (sizeof(struct pt_regs) - 2*sizeof(long))
+#else
+#define KERNEL_REGS_SIZE (sizeof(struct pt_regs))
+#endif
 
 static bool update_stack_state(struct unwind_state *state,
 			       unsigned long *next_bp)
@@ -202,7 +221,7 @@ static bool update_stack_state(struct unwind_state *state,
 	regs = decode_frame_pointer(next_bp);
 	if (regs) {
 		frame = (unsigned long *)regs;
-		len = regs_size(regs);
+		len = KERNEL_REGS_SIZE;
 		state->got_irq = true;
 	} else {
 		frame = next_bp;
@@ -226,6 +245,14 @@ static bool update_stack_state(struct unwind_state *state,
 	    frame < prev_frame_end)
 		return false;
 
+	/*
+	 * On 32-bit with user mode regs, make sure the last two regs are safe
+	 * to access:
+	 */
+	if (IS_ENABLED(CONFIG_X86_32) && regs && user_mode(regs) &&
+	    !on_stack(info, frame, len + 2*sizeof(long)))
+		return false;
+
 	/* Move state to the next frame: */
 	if (regs) {
 		state->regs = regs;
@@ -328,6 +355,13 @@ bad_address:
 	    state->regs->sp < (unsigned long)task_pt_regs(state->task))
 		goto the_end;
 
+	/*
+	 * There are some known frame pointer issues on 32-bit.  Disable
+	 * unwinder warnings on 32-bit until it gets objtool support.
+	 */
+	if (IS_ENABLED(CONFIG_X86_32))
+		goto the_end;
+
 	if (state->regs) {
 		printk_deferred_once(KERN_WARNING
 			"WARNING: kernel stack regs at %p in %s:%d has bad 'bp' value %p\n",
diff --git a/arch/x86/kernel/unwind_orc.c b/arch/x86/kernel/unwind_orc.c
index 570b70d3f604..a3f973b2c97a 100644
--- a/arch/x86/kernel/unwind_orc.c
+++ b/arch/x86/kernel/unwind_orc.c
@@ -86,8 +86,8 @@ static struct orc_entry *orc_find(unsigned long ip)
 		idx = (ip - LOOKUP_START_IP) / LOOKUP_BLOCK_SIZE;
 
 		if (unlikely((idx >= lookup_num_blocks-1))) {
-			orc_warn("WARNING: bad lookup idx: idx=%u num=%u ip=%lx\n",
-				 idx, lookup_num_blocks, ip);
+			orc_warn("WARNING: bad lookup idx: idx=%u num=%u ip=%pB\n",
+				 idx, lookup_num_blocks, (void *)ip);
 			return NULL;
 		}
 
@@ -96,8 +96,8 @@ static struct orc_entry *orc_find(unsigned long ip)
 
 		if (unlikely((__start_orc_unwind + start >= __stop_orc_unwind) ||
 			     (__start_orc_unwind + stop > __stop_orc_unwind))) {
-			orc_warn("WARNING: bad lookup value: idx=%u num=%u start=%u stop=%u ip=%lx\n",
-				 idx, lookup_num_blocks, start, stop, ip);
+			orc_warn("WARNING: bad lookup value: idx=%u num=%u start=%u stop=%u ip=%pB\n",
+				 idx, lookup_num_blocks, start, stop, (void *)ip);
 			return NULL;
 		}
 
@@ -279,7 +279,7 @@ static bool deref_stack_reg(struct unwind_state *state, unsigned long addr,
 	if (!stack_access_ok(state, addr, sizeof(long)))
 		return false;
 
-	*val = READ_ONCE_TASK_STACK(state->task, *(unsigned long *)addr);
+	*val = READ_ONCE_NOCHECK(*(unsigned long *)addr);
 	return true;
 }
 
@@ -373,7 +373,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	case ORC_REG_R10:
 		if (!state->regs || !state->full_regs) {
-			orc_warn("missing regs for base reg R10 at ip %p\n",
+			orc_warn("missing regs for base reg R10 at ip %pB\n",
 				 (void *)state->ip);
 			goto done;
 		}
@@ -382,7 +382,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	case ORC_REG_R13:
 		if (!state->regs || !state->full_regs) {
-			orc_warn("missing regs for base reg R13 at ip %p\n",
+			orc_warn("missing regs for base reg R13 at ip %pB\n",
 				 (void *)state->ip);
 			goto done;
 		}
@@ -391,7 +391,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	case ORC_REG_DI:
 		if (!state->regs || !state->full_regs) {
-			orc_warn("missing regs for base reg DI at ip %p\n",
+			orc_warn("missing regs for base reg DI at ip %pB\n",
 				 (void *)state->ip);
 			goto done;
 		}
@@ -400,7 +400,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	case ORC_REG_DX:
 		if (!state->regs || !state->full_regs) {
-			orc_warn("missing regs for base reg DX at ip %p\n",
+			orc_warn("missing regs for base reg DX at ip %pB\n",
 				 (void *)state->ip);
 			goto done;
 		}
@@ -408,7 +408,7 @@ bool unwind_next_frame(struct unwind_state *state)
 		break;
 
 	default:
-		orc_warn("unknown SP base reg %d for ip %p\n",
+		orc_warn("unknown SP base reg %d for ip %pB\n",
 			 orc->sp_reg, (void *)state->ip);
 		goto done;
 	}
@@ -436,7 +436,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	case ORC_TYPE_REGS:
 		if (!deref_stack_regs(state, sp, &state->ip, &state->sp, true)) {
-			orc_warn("can't dereference registers at %p for ip %p\n",
+			orc_warn("can't dereference registers at %p for ip %pB\n",
 				 (void *)sp, (void *)orig_ip);
 			goto done;
 		}
@@ -448,7 +448,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	case ORC_TYPE_REGS_IRET:
 		if (!deref_stack_regs(state, sp, &state->ip, &state->sp, false)) {
-			orc_warn("can't dereference iret registers at %p for ip %p\n",
+			orc_warn("can't dereference iret registers at %p for ip %pB\n",
 				 (void *)sp, (void *)orig_ip);
 			goto done;
 		}
@@ -465,7 +465,8 @@ bool unwind_next_frame(struct unwind_state *state)
 		break;
 
 	default:
-		orc_warn("unknown .orc_unwind entry type %d\n", orc->type);
+		orc_warn("unknown .orc_unwind entry type %d for ip %pB\n",
+			 orc->type, (void *)orig_ip);
 		break;
 	}
 
@@ -487,7 +488,7 @@ bool unwind_next_frame(struct unwind_state *state)
 		break;
 
 	default:
-		orc_warn("unknown BP base reg %d for ip %p\n",
+		orc_warn("unknown BP base reg %d for ip %pB\n",
 			 orc->bp_reg, (void *)orig_ip);
 		goto done;
 	}
@@ -496,7 +497,7 @@ bool unwind_next_frame(struct unwind_state *state)
 	if (state->stack_info.type == prev_type &&
 	    on_stack(&state->stack_info, (void *)state->sp, sizeof(long)) &&
 	    state->sp <= prev_sp) {
-		orc_warn("stack going in the wrong direction? ip=%p\n",
+		orc_warn("stack going in the wrong direction? ip=%pB\n",
 			 (void *)orig_ip);
 		goto done;
 	}
diff --git a/arch/x86/kernel/uprobes.c b/arch/x86/kernel/uprobes.c
index 495c776de4b4..a3755d293a48 100644
--- a/arch/x86/kernel/uprobes.c
+++ b/arch/x86/kernel/uprobes.c
@@ -271,12 +271,15 @@ static bool is_prefix_bad(struct insn *insn)
 	int i;
 
 	for (i = 0; i < insn->prefixes.nbytes; i++) {
-		switch (insn->prefixes.bytes[i]) {
-		case 0x26:	/* INAT_PFX_ES   */
-		case 0x2E:	/* INAT_PFX_CS   */
-		case 0x36:	/* INAT_PFX_DS   */
-		case 0x3E:	/* INAT_PFX_SS   */
-		case 0xF0:	/* INAT_PFX_LOCK */
+		insn_attr_t attr;
+
+		attr = inat_get_opcode_attribute(insn->prefixes.bytes[i]);
+		switch (attr) {
+		case INAT_MAKE_PREFIX(INAT_PFX_ES):
+		case INAT_MAKE_PREFIX(INAT_PFX_CS):
+		case INAT_MAKE_PREFIX(INAT_PFX_DS):
+		case INAT_MAKE_PREFIX(INAT_PFX_SS):
+		case INAT_MAKE_PREFIX(INAT_PFX_LOCK):
 			return true;
 		}
 	}
diff --git a/arch/x86/kernel/verify_cpu.S b/arch/x86/kernel/verify_cpu.S
index 014ea59aa153..3d3c2f71f617 100644
--- a/arch/x86/kernel/verify_cpu.S
+++ b/arch/x86/kernel/verify_cpu.S
@@ -33,7 +33,7 @@
 #include <asm/cpufeatures.h>
 #include <asm/msr-index.h>
 
-verify_cpu:
+ENTRY(verify_cpu)
 	pushf				# Save caller passed flags
 	push	$0			# Kill any dangerous flags
 	popf
@@ -139,3 +139,4 @@ verify_cpu:
 	popf				# Restore caller passed flags
 	xorl %eax, %eax
 	ret
+ENDPROC(verify_cpu)
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 7924a5356c8a..5edb27f1a2c4 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1994  Linus Torvalds
  *
@@ -54,6 +55,7 @@
 #include <asm/irq.h>
 #include <asm/traps.h>
 #include <asm/vm86.h>
+#include <asm/switch_to.h>
 
 /*
  * Known problems:
@@ -93,7 +95,6 @@
 
 void save_v86_state(struct kernel_vm86_regs *regs, int retval)
 {
-	struct tss_struct *tss;
 	struct task_struct *tsk = current;
 	struct vm86plus_struct __user *user;
 	struct vm86 *vm86 = current->thread.vm86;
@@ -145,12 +146,13 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval)
 		do_exit(SIGSEGV);
 	}
 
-	tss = &per_cpu(cpu_tss, get_cpu());
+	preempt_disable();
 	tsk->thread.sp0 = vm86->saved_sp0;
 	tsk->thread.sysenter_cs = __KERNEL_CS;
-	load_sp0(tss, &tsk->thread);
+	update_sp0(tsk);
+	refresh_sysenter_cs(&tsk->thread);
 	vm86->saved_sp0 = 0;
-	put_cpu();
+	preempt_enable();
 
 	memcpy(&regs->pt, &vm86->regs32, sizeof(struct pt_regs));
 
@@ -236,7 +238,6 @@ SYSCALL_DEFINE2(vm86, unsigned long, cmd, unsigned long, arg)
 
 static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus)
 {
-	struct tss_struct *tss;
 	struct task_struct *tsk = current;
 	struct vm86 *vm86 = tsk->thread.vm86;
 	struct kernel_vm86_regs vm86regs;
@@ -364,15 +365,17 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus)
 	vm86->saved_sp0 = tsk->thread.sp0;
 	lazy_save_gs(vm86->regs32.gs);
 
-	tss = &per_cpu(cpu_tss, get_cpu());
 	/* make room for real-mode segments */
+	preempt_disable();
 	tsk->thread.sp0 += 16;
 
-	if (static_cpu_has(X86_FEATURE_SEP))
+	if (static_cpu_has(X86_FEATURE_SEP)) {
 		tsk->thread.sysenter_cs = 0;
+		refresh_sysenter_cs(&tsk->thread);
+	}
 
-	load_sp0(tss, &tsk->thread);
-	put_cpu();
+	update_sp0(tsk);
+	preempt_enable();
 
 	if (vm86->flags & VM86_SCREEN_BITMAP)
 		mark_screen_rdonly(tsk->mm);
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index f05f00acac89..a4009fb9be87 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ld script for the x86 kernel
  *
diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c
index b034b1b14b9c..44685fb2a192 100644
--- a/arch/x86/kernel/vsmp_64.c
+++ b/arch/x86/kernel/vsmp_64.c
@@ -26,9 +26,6 @@
 
 #define TOPOLOGY_REGISTER_OFFSET 0x10
 
-/* Flag below is initialized once during vSMP PCI initialization. */
-static int irq_routing_comply = 1;
-
 #if defined CONFIG_PCI && defined CONFIG_PARAVIRT
 /*
  * Interrupt control on vSMPowered systems:
@@ -105,9 +102,6 @@ static void __init set_vsmp_pv_ops(void)
 	if (cap & ctl & BIT(8)) {
 		ctl &= ~BIT(8);
 
-		/* Interrupt routing set to ignore */
-		irq_routing_comply = 0;
-
 #ifdef CONFIG_PROC_FS
 		/* Don't let users change irq affinity via procfs */
 		no_irq_affinity = 1;
@@ -211,23 +205,10 @@ static int apicid_phys_pkg_id(int initial_apic_id, int index_msb)
 	return hard_smp_processor_id() >> index_msb;
 }
 
-/*
- * In vSMP, all cpus should be capable of handling interrupts, regardless of
- * the APIC used.
- */
-static void fill_vector_allocation_domain(int cpu, struct cpumask *retmask,
-					  const struct cpumask *mask)
-{
-	cpumask_setall(retmask);
-}
-
 static void vsmp_apic_post_init(void)
 {
 	/* need to update phys_pkg_id */
 	apic->phys_pkg_id = apicid_phys_pkg_id;
-
-	if (!irq_routing_comply)
-		apic->vector_allocation_domain = fill_vector_allocation_domain;
 }
 
 void __init vsmp_init(void)
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index a088b2c47f73..1151ccd72ce9 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -28,6 +28,8 @@ void x86_init_noop(void) { }
 void __init x86_init_uint_noop(unsigned int unused) { }
 int __init iommu_init_noop(void) { return 0; }
 void iommu_shutdown_noop(void) { }
+bool __init bool_x86_init_noop(void) { return false; }
+void x86_op_int_noop(int cpu) { }
 
 /*
  * The platform setup functions are preset with the default functions
@@ -55,6 +57,7 @@ struct x86_init_ops x86_init __initdata = {
 		.pre_vector_init	= init_ISA_irqs,
 		.intr_init		= native_init_IRQ,
 		.trap_init		= x86_init_noop,
+		.intr_mode_init		= apic_intr_mode_init
 	},
 
 	.oem = {
@@ -81,6 +84,13 @@ struct x86_init_ops x86_init __initdata = {
 		.init_irq		= x86_default_pci_init_irq,
 		.fixup_irqs		= x86_default_pci_fixup_irqs,
 	},
+
+	.hyper = {
+		.init_platform		= x86_init_noop,
+		.guest_late_init	= x86_init_noop,
+		.x2apic_available	= bool_x86_init_noop,
+		.init_mem_mapping	= x86_init_noop,
+	},
 };
 
 struct x86_cpuinit_ops x86_cpuinit = {
@@ -101,6 +111,7 @@ struct x86_platform_ops x86_platform __ro_after_init = {
 	.get_nmi_reason			= default_get_nmi_reason,
 	.save_sched_clock_state 	= tsc_save_sched_clock_state,
 	.restore_sched_clock_state 	= tsc_restore_sched_clock_state,
+	.hyper.pin_vcpu			= x86_op_int_noop,
 };
 
 EXPORT_SYMBOL_GPL(x86_platform);
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index 3ea624452f93..3df51c287844 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # KVM configuration
 #
@@ -23,6 +24,7 @@ config KVM
 	depends on HIGH_RES_TIMERS
 	# for TASKSTATS/TASK_DELAY_ACCT:
 	depends on NET && MULTIUSER
+	depends on X86_LOCAL_APIC
 	select PREEMPT_NOTIFIERS
 	select MMU_NOTIFIER
 	select ANON_INODES
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index 09d4b17be022..dc4f2fdf5e57 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 ccflags-y += -Iarch/x86/kvm
 
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index 1ea3c0e1e3a9..cdc70a3a6583 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_X86_KVM_CPUID_H
 #define ARCH_X86_KVM_CPUID_H
 
@@ -59,7 +60,6 @@ static __always_inline struct cpuid_reg x86_feature_cpuid(unsigned x86_feature)
 {
 	unsigned x86_leaf = x86_feature / 32;
 
-	BUILD_BUG_ON(!__builtin_constant_p(x86_leaf));
 	BUILD_BUG_ON(x86_leaf >= ARRAY_SIZE(reverse_cpuid));
 	BUILD_BUG_ON(reverse_cpuid[x86_leaf].function == 0);
 
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 16bf6655aa85..d90cdc77e077 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -425,8 +425,10 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *));
 	#op " %al \n\t" \
 	FOP_RET
 
-asm(".global kvm_fastop_exception \n"
-    "kvm_fastop_exception: xor %esi, %esi; ret");
+asm(".pushsection .fixup, \"ax\"\n"
+    ".global kvm_fastop_exception \n"
+    "kvm_fastop_exception: xor %esi, %esi; ret\n"
+    ".popsection");
 
 FOP_START(setcc)
 FOP_SETCC(seto)
@@ -4102,10 +4104,12 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
 		ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
 		if (efer & EFER_LMA) {
 			u64 maxphyaddr;
-			u32 eax = 0x80000008;
+			u32 eax, ebx, ecx, edx;
 
-			if (ctxt->ops->get_cpuid(ctxt, &eax, NULL, NULL,
-						 NULL, false))
+			eax = 0x80000008;
+			ecx = 0;
+			if (ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx,
+						 &edx, false))
 				maxphyaddr = eax & 0xff;
 			else
 				maxphyaddr = 36;
@@ -5296,7 +5300,6 @@ static void fetch_possible_mmx_operand(struct x86_emulate_ctxt *ctxt,
 
 static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *))
 {
-	register void *__sp asm(_ASM_SP);
 	ulong flags = (ctxt->eflags & EFLAGS_MASK) | X86_EFLAGS_IF;
 
 	if (!(ctxt->d & ByteOp))
@@ -5304,7 +5307,7 @@ static int fastop(struct x86_emulate_ctxt *ctxt, void (*fop)(struct fastop *))
 
 	asm("push %[flags]; popf; call *%[fastop]; pushf; pop %[flags]\n"
 	    : "+a"(ctxt->dst.val), "+d"(ctxt->src.val), [flags]"+D"(flags),
-	      [fastop]"+S"(fop), "+r"(__sp)
+	      [fastop]"+S"(fop), ASM_CALL_CONSTRAINT
 	    : "c"(ctxt->src2.val));
 
 	ctxt->eflags = (ctxt->eflags & ~EFLAGS_MASK) | (flags & EFLAGS_MASK);
diff --git a/arch/x86/kvm/i8254.h b/arch/x86/kvm/i8254.h
index 600bee9dcbbd..394d9527da7e 100644
--- a/arch/x86/kvm/i8254.h
+++ b/arch/x86/kvm/i8254.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __I8254_H
 #define __I8254_H
 
diff --git a/arch/x86/kvm/ioapic.h b/arch/x86/kvm/ioapic.h
index 29ce19732ccf..ea1a4e0297da 100644
--- a/arch/x86/kvm/ioapic.h
+++ b/arch/x86/kvm/ioapic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KVM_IO_APIC_H
 #define __KVM_IO_APIC_H
 
diff --git a/arch/x86/kvm/kvm_cache_regs.h b/arch/x86/kvm/kvm_cache_regs.h
index 9add410f195f..f500293dad8d 100644
--- a/arch/x86/kvm/kvm_cache_regs.h
+++ b/arch/x86/kvm/kvm_cache_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASM_KVM_CACHE_REGS_H
 #define ASM_KVM_CACHE_REGS_H
 
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index aaf10b6f5380..36c90d631096 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -1324,6 +1324,10 @@ static void apic_timer_expired(struct kvm_lapic *apic)
 	atomic_inc(&apic->lapic_timer.pending);
 	kvm_set_pending_timer(vcpu);
 
+	/*
+	 * For x86, the atomic_inc() is serialized, thus
+	 * using swait_active() is safe.
+	 */
 	if (swait_active(q))
 		swake_up(q);
 
@@ -1988,6 +1992,11 @@ void kvm_lapic_reset(struct kvm_vcpu *vcpu, bool init_event)
 				vcpu->arch.apic_base | MSR_IA32_APICBASE_BSP);
 	vcpu->arch.pv_eoi.msr_val = 0;
 	apic_update_ppr(apic);
+	if (vcpu->arch.apicv_active) {
+		kvm_x86_ops->apicv_post_state_restore(vcpu);
+		kvm_x86_ops->hwapic_irr_update(vcpu, -1);
+		kvm_x86_ops->hwapic_isr_update(vcpu, -1);
+	}
 
 	vcpu->arch.apic_arb_prio = 0;
 	vcpu->arch.apic_attention = 0;
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 215721e1426a..4b9935a38347 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KVM_X86_LAPIC_H
 #define __KVM_X86_LAPIC_H
 
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index eca30c1eb1d9..a119b361b8b7 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -443,7 +443,7 @@ static u64 __update_clear_spte_slow(u64 *sptep, u64 spte)
 
 static u64 __get_spte_lockless(u64 *sptep)
 {
-	return ACCESS_ONCE(*sptep);
+	return READ_ONCE(*sptep);
 }
 #else
 union split_spte {
@@ -3837,7 +3837,7 @@ int kvm_handle_page_fault(struct kvm_vcpu *vcpu, u64 error_code,
 	case KVM_PV_REASON_PAGE_NOT_PRESENT:
 		vcpu->arch.apf.host_apf_reason = 0;
 		local_irq_disable();
-		kvm_async_pf_task_wait(fault_address);
+		kvm_async_pf_task_wait(fault_address, 0);
 		local_irq_enable();
 		break;
 	case KVM_PV_REASON_PAGE_READY:
@@ -3974,19 +3974,19 @@ static inline bool is_last_gpte(struct kvm_mmu *mmu,
 				unsigned level, unsigned gpte)
 {
 	/*
-	 * PT_PAGE_TABLE_LEVEL always terminates.  The RHS has bit 7 set
-	 * iff level <= PT_PAGE_TABLE_LEVEL, which for our purpose means
-	 * level == PT_PAGE_TABLE_LEVEL; set PT_PAGE_SIZE_MASK in gpte then.
-	 */
-	gpte |= level - PT_PAGE_TABLE_LEVEL - 1;
-
-	/*
 	 * The RHS has bit 7 set iff level < mmu->last_nonleaf_level.
 	 * If it is clear, there are no large pages at this level, so clear
 	 * PT_PAGE_SIZE_MASK in gpte if that is the case.
 	 */
 	gpte &= level - mmu->last_nonleaf_level;
 
+	/*
+	 * PT_PAGE_TABLE_LEVEL always terminates.  The RHS has bit 7 set
+	 * iff level <= PT_PAGE_TABLE_LEVEL, which for our purpose means
+	 * level == PT_PAGE_TABLE_LEVEL; set PT_PAGE_SIZE_MASK in gpte then.
+	 */
+	gpte |= level - PT_PAGE_TABLE_LEVEL - 1;
+
 	return gpte & PT_PAGE_SIZE_MASK;
 }
 
@@ -4555,6 +4555,7 @@ void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly,
 
 	update_permission_bitmask(vcpu, context, true);
 	update_pkru_bitmask(vcpu, context, true);
+	update_last_nonleaf_level(vcpu, context);
 	reset_rsvds_bits_mask_ept(vcpu, context, execonly);
 	reset_ept_shadow_zero_bits_mask(vcpu, context, execonly);
 }
@@ -4818,7 +4819,7 @@ static void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	 * If we don't have indirect shadow pages, it means no page is
 	 * write-protected, so we can exit simply.
 	 */
-	if (!ACCESS_ONCE(vcpu->kvm->arch.indirect_shadow_pages))
+	if (!READ_ONCE(vcpu->kvm->arch.indirect_shadow_pages))
 		return;
 
 	remote_flush = local_flush = false;
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 64a2dbd2b1af..efc857615d8e 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KVM_X86_MMU_H
 #define __KVM_X86_MMU_H
 
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index 8b97a6cba8d1..c73bf4e4988c 100644
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVMMMU_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVMMMU_H
 
diff --git a/arch/x86/kvm/page_track.c b/arch/x86/kvm/page_track.c
index ea67dc876316..01c1371f39f8 100644
--- a/arch/x86/kvm/page_track.c
+++ b/arch/x86/kvm/page_track.c
@@ -157,7 +157,7 @@ bool kvm_page_track_is_active(struct kvm_vcpu *vcpu, gfn_t gfn,
 		return false;
 
 	index = gfn_to_index(gfn, slot->base_gfn, PT_PAGE_TABLE_LEVEL);
-	return !!ACCESS_ONCE(slot->arch.gfn_track[mode][index]);
+	return !!READ_ONCE(slot->arch.gfn_track[mode][index]);
 }
 
 void kvm_page_track_cleanup(struct kvm *kvm)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 86b68dc5a649..f18d1f8d332b 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -334,10 +334,11 @@ retry_walk:
 		--walker->level;
 
 		index = PT_INDEX(addr, walker->level);
-
 		table_gfn = gpte_to_gfn(pte);
 		offset    = index * sizeof(pt_element_t);
 		pte_gpa   = gfn_to_gpa(table_gfn) + offset;
+
+		BUG_ON(walker->level < 1);
 		walker->table_gfn[walker->level - 1] = table_gfn;
 		walker->pte_gpa[walker->level - 1] = pte_gpa;
 
diff --git a/arch/x86/kvm/pmu.h b/arch/x86/kvm/pmu.h
index f96e1f962587..a9a62b9a73e2 100644
--- a/arch/x86/kvm/pmu.h
+++ b/arch/x86/kvm/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KVM_X86_PMU_H
 #define __KVM_X86_PMU_H
 
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 2c1cfe68a9af..0e68f0b3cbf7 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1200,7 +1200,6 @@ static void avic_init_vmcb(struct vcpu_svm *svm)
 	vmcb->control.avic_physical_id = ppa & AVIC_HPA_MASK;
 	vmcb->control.avic_physical_id |= AVIC_MAX_PHYSICAL_ID_COUNT;
 	vmcb->control.int_ctl |= AVIC_ENABLE_MASK;
-	svm->vcpu.arch.apicv_active = true;
 }
 
 static void init_vmcb(struct vcpu_svm *svm)
@@ -1316,7 +1315,7 @@ static void init_vmcb(struct vcpu_svm *svm)
 		set_intercept(svm, INTERCEPT_PAUSE);
 	}
 
-	if (avic)
+	if (kvm_vcpu_apicv_active(&svm->vcpu))
 		avic_init_vmcb(svm);
 
 	/*
@@ -1600,6 +1599,23 @@ static void svm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 		avic_update_vapic_bar(svm, APIC_DEFAULT_PHYS_BASE);
 }
 
+static int avic_init_vcpu(struct vcpu_svm *svm)
+{
+	int ret;
+
+	if (!kvm_vcpu_apicv_active(&svm->vcpu))
+		return 0;
+
+	ret = avic_init_backing_page(&svm->vcpu);
+	if (ret)
+		return ret;
+
+	INIT_LIST_HEAD(&svm->ir_list);
+	spin_lock_init(&svm->ir_list_lock);
+
+	return ret;
+}
+
 static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
 {
 	struct vcpu_svm *svm;
@@ -1636,14 +1652,9 @@ static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id)
 	if (!hsave_page)
 		goto free_page3;
 
-	if (avic) {
-		err = avic_init_backing_page(&svm->vcpu);
-		if (err)
-			goto free_page4;
-
-		INIT_LIST_HEAD(&svm->ir_list);
-		spin_lock_init(&svm->ir_list_lock);
-	}
+	err = avic_init_vcpu(svm);
+	if (err)
+		goto free_page4;
 
 	/* We initialize this flag to true to make sure that the is_running
 	 * bit would be set the first time the vcpu is loaded.
@@ -4395,9 +4406,9 @@ static void svm_set_virtual_x2apic_mode(struct kvm_vcpu *vcpu, bool set)
 	return;
 }
 
-static bool svm_get_enable_apicv(void)
+static bool svm_get_enable_apicv(struct kvm_vcpu *vcpu)
 {
-	return avic;
+	return avic && irqchip_split(vcpu->kvm);
 }
 
 static void svm_hwapic_irr_update(struct kvm_vcpu *vcpu, int max_irr)
@@ -4414,7 +4425,7 @@ static void svm_refresh_apicv_exec_ctrl(struct kvm_vcpu *vcpu)
 	struct vcpu_svm *svm = to_svm(vcpu);
 	struct vmcb *vmcb = svm->vmcb;
 
-	if (!avic)
+	if (!kvm_vcpu_apicv_active(&svm->vcpu))
 		return;
 
 	vmcb->control.int_ctl &= ~AVIC_ENABLE_MASK;
@@ -5302,6 +5313,7 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu,
 		 */
 		if (info->rep_prefix != REPE_PREFIX)
 			goto out;
+		break;
 	case SVM_EXIT_IOIO: {
 		u64 exit_info;
 		u32 bytes;
diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h
index 8a202c49e2a0..9807c314c478 100644
--- a/arch/x86/kvm/trace.h
+++ b/arch/x86/kvm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_H
 
diff --git a/arch/x86/kvm/tss.h b/arch/x86/kvm/tss.h
index 622aa10f692f..3f9150125e70 100644
--- a/arch/x86/kvm/tss.h
+++ b/arch/x86/kvm/tss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TSS_SEGMENT_H
 #define __TSS_SEGMENT_H
 
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 4253adef9044..a6f4f095f8f4 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -200,6 +200,8 @@ struct loaded_vmcs {
 	int cpu;
 	bool launched;
 	bool nmi_known_unmasked;
+	unsigned long vmcs_host_cr3;	/* May not match real cr3 */
+	unsigned long vmcs_host_cr4;	/* May not match real cr4 */
 	struct list_head loaded_vmcss_on_cpu_link;
 };
 
@@ -600,8 +602,6 @@ struct vcpu_vmx {
 		int           gs_ldt_reload_needed;
 		int           fs_reload_needed;
 		u64           msr_host_bndcfgs;
-		unsigned long vmcs_host_cr3;	/* May not match real cr3 */
-		unsigned long vmcs_host_cr4;	/* May not match real cr4 */
 	} host_state;
 	struct {
 		int vm86_active;
@@ -2202,46 +2202,44 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
 	struct pi_desc old, new;
 	unsigned int dest;
 
-	if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
-		!irq_remapping_cap(IRQ_POSTING_CAP)  ||
-		!kvm_vcpu_apicv_active(vcpu))
+	/*
+	 * In case of hot-plug or hot-unplug, we may have to undo
+	 * vmx_vcpu_pi_put even if there is no assigned device.  And we
+	 * always keep PI.NDST up to date for simplicity: it makes the
+	 * code easier, and CPU migration is not a fast path.
+	 */
+	if (!pi_test_sn(pi_desc) && vcpu->cpu == cpu)
 		return;
 
+	/*
+	 * First handle the simple case where no cmpxchg is necessary; just
+	 * allow posting non-urgent interrupts.
+	 *
+	 * If the 'nv' field is POSTED_INTR_WAKEUP_VECTOR, do not change
+	 * PI.NDST: pi_post_block will do it for us and the wakeup_handler
+	 * expects the VCPU to be on the blocked_vcpu_list that matches
+	 * PI.NDST.
+	 */
+	if (pi_desc->nv == POSTED_INTR_WAKEUP_VECTOR ||
+	    vcpu->cpu == cpu) {
+		pi_clear_sn(pi_desc);
+		return;
+	}
+
+	/* The full case.  */
 	do {
 		old.control = new.control = pi_desc->control;
 
-		/*
-		 * If 'nv' field is POSTED_INTR_WAKEUP_VECTOR, there
-		 * are two possible cases:
-		 * 1. After running 'pre_block', context switch
-		 *    happened. For this case, 'sn' was set in
-		 *    vmx_vcpu_put(), so we need to clear it here.
-		 * 2. After running 'pre_block', we were blocked,
-		 *    and woken up by some other guy. For this case,
-		 *    we don't need to do anything, 'pi_post_block'
-		 *    will do everything for us. However, we cannot
-		 *    check whether it is case #1 or case #2 here
-		 *    (maybe, not needed), so we also clear sn here,
-		 *    I think it is not a big deal.
-		 */
-		if (pi_desc->nv != POSTED_INTR_WAKEUP_VECTOR) {
-			if (vcpu->cpu != cpu) {
-				dest = cpu_physical_id(cpu);
-
-				if (x2apic_enabled())
-					new.ndst = dest;
-				else
-					new.ndst = (dest << 8) & 0xFF00;
-			}
+		dest = cpu_physical_id(cpu);
 
-			/* set 'NV' to 'notification vector' */
-			new.nv = POSTED_INTR_VECTOR;
-		}
+		if (x2apic_enabled())
+			new.ndst = dest;
+		else
+			new.ndst = (dest << 8) & 0xFF00;
 
-		/* Allow posting non-urgent interrupts */
 		new.sn = 0;
-	} while (cmpxchg(&pi_desc->control, old.control,
-			new.control) != old.control);
+	} while (cmpxchg64(&pi_desc->control, old.control,
+			   new.control) != old.control);
 }
 
 static void decache_tsc_multiplier(struct vcpu_vmx *vmx)
@@ -5012,7 +5010,7 @@ static void vmx_disable_intercept_msr_x2apic(u32 msr, int type, bool apicv_activ
 	}
 }
 
-static bool vmx_get_enable_apicv(void)
+static bool vmx_get_enable_apicv(struct kvm_vcpu *vcpu)
 {
 	return enable_apicv;
 }
@@ -5077,21 +5075,30 @@ static inline bool kvm_vcpu_trigger_posted_interrupt(struct kvm_vcpu *vcpu,
 	int pi_vec = nested ? POSTED_INTR_NESTED_VECTOR : POSTED_INTR_VECTOR;
 
 	if (vcpu->mode == IN_GUEST_MODE) {
-		struct vcpu_vmx *vmx = to_vmx(vcpu);
-
 		/*
-		 * Currently, we don't support urgent interrupt,
-		 * all interrupts are recognized as non-urgent
-		 * interrupt, so we cannot post interrupts when
-		 * 'SN' is set.
+		 * The vector of interrupt to be delivered to vcpu had
+		 * been set in PIR before this function.
 		 *
-		 * If the vcpu is in guest mode, it means it is
-		 * running instead of being scheduled out and
-		 * waiting in the run queue, and that's the only
-		 * case when 'SN' is set currently, warning if
-		 * 'SN' is set.
+		 * Following cases will be reached in this block, and
+		 * we always send a notification event in all cases as
+		 * explained below.
+		 *
+		 * Case 1: vcpu keeps in non-root mode. Sending a
+		 * notification event posts the interrupt to vcpu.
+		 *
+		 * Case 2: vcpu exits to root mode and is still
+		 * runnable. PIR will be synced to vIRR before the
+		 * next vcpu entry. Sending a notification event in
+		 * this case has no effect, as vcpu is not in root
+		 * mode.
+		 *
+		 * Case 3: vcpu exits to root mode and is blocked.
+		 * vcpu_block() has already synced PIR to vIRR and
+		 * never blocks vcpu if vIRR is not cleared. Therefore,
+		 * a blocked vcpu here does not wait for any requested
+		 * interrupts in PIR, and sending a notification event
+		 * which has no effect is safe here.
 		 */
-		WARN_ON_ONCE(pi_test_sn(&vmx->pi_desc));
 
 		apic->send_IPI_mask(get_cpu_mask(vcpu->cpu), pi_vec);
 		return true;
@@ -5169,12 +5176,12 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
 	 */
 	cr3 = __read_cr3();
 	vmcs_writel(HOST_CR3, cr3);		/* 22.2.3  FIXME: shadow tables */
-	vmx->host_state.vmcs_host_cr3 = cr3;
+	vmx->loaded_vmcs->vmcs_host_cr3 = cr3;
 
 	/* Save the most likely value for this task's CR4 in the VMCS. */
 	cr4 = cr4_read_shadow();
 	vmcs_writel(HOST_CR4, cr4);			/* 22.2.3, 22.2.5 */
-	vmx->host_state.vmcs_host_cr4 = cr4;
+	vmx->loaded_vmcs->vmcs_host_cr4 = cr4;
 
 	vmcs_write16(HOST_CS_SELECTOR, __KERNEL_CS);  /* 22.2.4 */
 #ifdef CONFIG_X86_64
@@ -5192,7 +5199,7 @@ static void vmx_set_constant_host_state(struct vcpu_vmx *vmx)
 	vmcs_write16(HOST_SS_SELECTOR, __KERNEL_DS);  /* 22.2.4 */
 	vmcs_write16(HOST_TR_SELECTOR, GDT_ENTRY_TSS*8);  /* 22.2.4 */
 
-	native_store_idt(&dt);
+	store_idt(&dt);
 	vmcs_writel(HOST_IDTR_BASE, dt.address);   /* 22.2.4 */
 	vmx->host_idt_base = dt.address;
 
@@ -5612,9 +5619,6 @@ static void vmx_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event)
 
 	kvm_make_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu);
 
-	if (kvm_vcpu_apicv_active(vcpu))
-		memset(&vmx->pi_desc, 0, sizeof(struct pi_desc));
-
 	if (vmx->vpid != 0)
 		vmcs_write16(VIRTUAL_PROCESSOR_ID, vmx->vpid);
 
@@ -8344,12 +8348,14 @@ static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 
-	trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
-				vmcs_readl(EXIT_QUALIFICATION),
-				vmx->idt_vectoring_info,
-				intr_info,
-				vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
-				KVM_ISA_VMX);
+	if (vmx->nested.nested_run_pending)
+		return false;
+
+	if (unlikely(vmx->fail)) {
+		pr_info_ratelimited("%s failed vm entry %x\n", __func__,
+				    vmcs_read32(VM_INSTRUCTION_ERROR));
+		return true;
+	}
 
 	/*
 	 * The host physical addresses of some pages of guest memory
@@ -8363,14 +8369,12 @@ static bool nested_vmx_exit_reflected(struct kvm_vcpu *vcpu, u32 exit_reason)
 	 */
 	nested_mark_vmcs12_pages_dirty(vcpu);
 
-	if (vmx->nested.nested_run_pending)
-		return false;
-
-	if (unlikely(vmx->fail)) {
-		pr_info_ratelimited("%s failed vm entry %x\n", __func__,
-				    vmcs_read32(VM_INSTRUCTION_ERROR));
-		return true;
-	}
+	trace_kvm_nested_vmexit(kvm_rip_read(vcpu), exit_reason,
+				vmcs_readl(EXIT_QUALIFICATION),
+				vmx->idt_vectoring_info,
+				intr_info,
+				vmcs_read32(VM_EXIT_INTR_ERROR_CODE),
+				KVM_ISA_VMX);
 
 	switch (exit_reason) {
 	case EXIT_REASON_EXCEPTION_NMI:
@@ -9036,7 +9040,6 @@ static void vmx_complete_atomic_exit(struct vcpu_vmx *vmx)
 static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
 {
 	u32 exit_intr_info = vmcs_read32(VM_EXIT_INTR_INFO);
-	register void *__sp asm(_ASM_SP);
 
 	if ((exit_intr_info & (INTR_INFO_VALID_MASK | INTR_INFO_INTR_TYPE_MASK))
 			== (INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR)) {
@@ -9065,7 +9068,7 @@ static void vmx_handle_external_intr(struct kvm_vcpu *vcpu)
 #ifdef CONFIG_X86_64
 			[sp]"=&r"(tmp),
 #endif
-			"+r"(__sp)
+			ASM_CALL_CONSTRAINT
 			:
 			[entry]"r"(entry),
 			[ss]"i"(__KERNEL_DS),
@@ -9265,15 +9268,15 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		vmcs_writel(GUEST_RIP, vcpu->arch.regs[VCPU_REGS_RIP]);
 
 	cr3 = __get_current_cr3_fast();
-	if (unlikely(cr3 != vmx->host_state.vmcs_host_cr3)) {
+	if (unlikely(cr3 != vmx->loaded_vmcs->vmcs_host_cr3)) {
 		vmcs_writel(HOST_CR3, cr3);
-		vmx->host_state.vmcs_host_cr3 = cr3;
+		vmx->loaded_vmcs->vmcs_host_cr3 = cr3;
 	}
 
 	cr4 = cr4_read_shadow();
-	if (unlikely(cr4 != vmx->host_state.vmcs_host_cr4)) {
+	if (unlikely(cr4 != vmx->loaded_vmcs->vmcs_host_cr4)) {
 		vmcs_writel(HOST_CR4, cr4);
-		vmx->host_state.vmcs_host_cr4 = cr4;
+		vmx->loaded_vmcs->vmcs_host_cr4 = cr4;
 	}
 
 	/* When single-stepping over STI and MOV SS, we must clear the
@@ -9424,12 +9427,6 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 				  | (1 << VCPU_EXREG_CR3));
 	vcpu->arch.regs_dirty = 0;
 
-	vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
-
-	vmx->loaded_vmcs->launched = 1;
-
-	vmx->exit_reason = vmcs_read32(VM_EXIT_REASON);
-
 	/*
 	 * eager fpu is enabled if PKEY is supported and CR4 is switched
 	 * back on host, so it is safe to read guest PKRU from current
@@ -9451,6 +9448,14 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 		kvm_make_request(KVM_REQ_EVENT, vcpu);
 
 	vmx->nested.nested_run_pending = 0;
+	vmx->idt_vectoring_info = 0;
+
+	vmx->exit_reason = vmx->fail ? 0xdead : vmcs_read32(VM_EXIT_REASON);
+	if (vmx->fail || (vmx->exit_reason & VMX_EXIT_REASONS_FAILED_VMENTRY))
+		return;
+
+	vmx->loaded_vmcs->launched = 1;
+	vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD);
 
 	vmx_complete_atomic_exit(vmx);
 	vmx_recover_nmi_blocking(vmx);
@@ -9581,6 +9586,13 @@ static struct kvm_vcpu *vmx_create_vcpu(struct kvm *kvm, unsigned int id)
 
 	vmx->msr_ia32_feature_control_valid_bits = FEATURE_CONTROL_LOCKED;
 
+	/*
+	 * Enforce invariant: pi_desc.nv is always either POSTED_INTR_VECTOR
+	 * or POSTED_INTR_WAKEUP_VECTOR.
+	 */
+	vmx->pi_desc.nv = POSTED_INTR_VECTOR;
+	vmx->pi_desc.sn = 1;
+
 	return &vmx->vcpu;
 
 free_vmcs:
@@ -9829,7 +9841,8 @@ static void vmx_inject_page_fault_nested(struct kvm_vcpu *vcpu,
 
 	WARN_ON(!is_guest_mode(vcpu));
 
-	if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code)) {
+	if (nested_vmx_is_page_fault_vmexit(vmcs12, fault->error_code) &&
+		!to_vmx(vcpu)->nested.nested_run_pending) {
 		vmcs12->vm_exit_intr_error_code = fault->error_code;
 		nested_vmx_vmexit(vcpu, EXIT_REASON_EXCEPTION_NMI,
 				  PF_VECTOR | INTR_TYPE_HARD_EXCEPTION |
@@ -10525,6 +10538,11 @@ static int prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12,
 	if (exec_control & CPU_BASED_TPR_SHADOW) {
 		vmcs_write64(VIRTUAL_APIC_PAGE_ADDR, -1ull);
 		vmcs_write32(TPR_THRESHOLD, vmcs12->tpr_threshold);
+	} else {
+#ifdef CONFIG_X86_64
+		exec_control |= CPU_BASED_CR8_LOAD_EXITING |
+				CPU_BASED_CR8_STORE_EXITING;
+#endif
 	}
 
 	/*
@@ -11276,7 +11294,7 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
 
 	/* Same as above - no reason to call set_cr4_guest_host_mask().  */
 	vcpu->arch.cr4_guest_owned_bits = ~vmcs_readl(CR4_GUEST_HOST_MASK);
-	kvm_set_cr4(vcpu, vmcs12->host_cr4);
+	vmx_set_cr4(vcpu, vmcs12->host_cr4);
 
 	nested_ept_uninit_mmu_context(vcpu);
 
@@ -11388,46 +11406,30 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
-	u32 vm_inst_error = 0;
 
 	/* trying to cancel vmlaunch/vmresume is a bug */
 	WARN_ON_ONCE(vmx->nested.nested_run_pending);
 
+	/*
+	 * The only expected VM-instruction error is "VM entry with
+	 * invalid control field(s)." Anything else indicates a
+	 * problem with L0.
+	 */
+	WARN_ON_ONCE(vmx->fail && (vmcs_read32(VM_INSTRUCTION_ERROR) !=
+				   VMXERR_ENTRY_INVALID_CONTROL_FIELD));
+
 	leave_guest_mode(vcpu);
-	prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info,
-		       exit_qualification);
 
-	if (nested_vmx_store_msr(vcpu, vmcs12->vm_exit_msr_store_addr,
-				 vmcs12->vm_exit_msr_store_count))
-		nested_vmx_abort(vcpu, VMX_ABORT_SAVE_GUEST_MSR_FAIL);
+	if (likely(!vmx->fail)) {
+		prepare_vmcs12(vcpu, vmcs12, exit_reason, exit_intr_info,
+			       exit_qualification);
 
-	if (unlikely(vmx->fail))
-		vm_inst_error = vmcs_read32(VM_INSTRUCTION_ERROR);
+		if (nested_vmx_store_msr(vcpu, vmcs12->vm_exit_msr_store_addr,
+					 vmcs12->vm_exit_msr_store_count))
+			nested_vmx_abort(vcpu, VMX_ABORT_SAVE_GUEST_MSR_FAIL);
+	}
 
 	vmx_switch_vmcs(vcpu, &vmx->vmcs01);
-
-	/*
-	 * TODO: SDM says that with acknowledge interrupt on exit, bit 31 of
-	 * the VM-exit interrupt information (valid interrupt) is always set to
-	 * 1 on EXIT_REASON_EXTERNAL_INTERRUPT, so we shouldn't need
-	 * kvm_cpu_has_interrupt().  See the commit message for details.
-	 */
-	if (nested_exit_intr_ack_set(vcpu) &&
-	    exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT &&
-	    kvm_cpu_has_interrupt(vcpu)) {
-		int irq = kvm_cpu_get_interrupt(vcpu);
-		WARN_ON(irq < 0);
-		vmcs12->vm_exit_intr_info = irq |
-			INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR;
-	}
-
-	trace_kvm_nested_vmexit_inject(vmcs12->vm_exit_reason,
-				       vmcs12->exit_qualification,
-				       vmcs12->idt_vectoring_info_field,
-				       vmcs12->vm_exit_intr_info,
-				       vmcs12->vm_exit_intr_error_code,
-				       KVM_ISA_VMX);
-
 	vm_entry_controls_reset_shadow(vmx);
 	vm_exit_controls_reset_shadow(vmx);
 	vmx_segment_cache_clear(vmx);
@@ -11436,8 +11438,6 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
 	if (VMCS02_POOL_SIZE == 0)
 		nested_free_vmcs02(vmx, vmx->nested.current_vmptr);
 
-	load_vmcs12_host_state(vcpu, vmcs12);
-
 	/* Update any VMCS fields that might have changed while L2 ran */
 	vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, vmx->msr_autoload.nr);
 	vmcs_write32(VM_ENTRY_MSR_LOAD_COUNT, vmx->msr_autoload.nr);
@@ -11486,21 +11486,57 @@ static void nested_vmx_vmexit(struct kvm_vcpu *vcpu, u32 exit_reason,
 	 */
 	kvm_make_request(KVM_REQ_APIC_PAGE_RELOAD, vcpu);
 
-	/*
-	 * Exiting from L2 to L1, we're now back to L1 which thinks it just
-	 * finished a VMLAUNCH or VMRESUME instruction, so we need to set the
-	 * success or failure flag accordingly.
-	 */
-	if (unlikely(vmx->fail)) {
-		vmx->fail = 0;
-		nested_vmx_failValid(vcpu, vm_inst_error);
-	} else
-		nested_vmx_succeed(vcpu);
 	if (enable_shadow_vmcs)
 		vmx->nested.sync_shadow_vmcs = true;
 
 	/* in case we halted in L2 */
 	vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
+
+	if (likely(!vmx->fail)) {
+		/*
+		 * TODO: SDM says that with acknowledge interrupt on
+		 * exit, bit 31 of the VM-exit interrupt information
+		 * (valid interrupt) is always set to 1 on
+		 * EXIT_REASON_EXTERNAL_INTERRUPT, so we shouldn't
+		 * need kvm_cpu_has_interrupt().  See the commit
+		 * message for details.
+		 */
+		if (nested_exit_intr_ack_set(vcpu) &&
+		    exit_reason == EXIT_REASON_EXTERNAL_INTERRUPT &&
+		    kvm_cpu_has_interrupt(vcpu)) {
+			int irq = kvm_cpu_get_interrupt(vcpu);
+			WARN_ON(irq < 0);
+			vmcs12->vm_exit_intr_info = irq |
+				INTR_INFO_VALID_MASK | INTR_TYPE_EXT_INTR;
+		}
+
+		trace_kvm_nested_vmexit_inject(vmcs12->vm_exit_reason,
+					       vmcs12->exit_qualification,
+					       vmcs12->idt_vectoring_info_field,
+					       vmcs12->vm_exit_intr_info,
+					       vmcs12->vm_exit_intr_error_code,
+					       KVM_ISA_VMX);
+
+		load_vmcs12_host_state(vcpu, vmcs12);
+
+		return;
+	}
+	
+	/*
+	 * After an early L2 VM-entry failure, we're now back
+	 * in L1 which thinks it just finished a VMLAUNCH or
+	 * VMRESUME instruction, so we need to set the failure
+	 * flag and the VM-instruction error field of the VMCS
+	 * accordingly.
+	 */
+	nested_vmx_failValid(vcpu, VMXERR_ENTRY_INVALID_CONTROL_FIELD);
+	/*
+	 * The emulated instruction was already skipped in
+	 * nested_vmx_run, but the updated RIP was never
+	 * written back to the vmcs01.
+	 */
+	skip_emulated_instruction(vcpu);
+	vmx->fail = 0;
 }
 
 /*
@@ -11671,6 +11707,37 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
 	kvm_mmu_clear_dirty_pt_masked(kvm, memslot, offset, mask);
 }
 
+static void __pi_post_block(struct kvm_vcpu *vcpu)
+{
+	struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
+	struct pi_desc old, new;
+	unsigned int dest;
+
+	do {
+		old.control = new.control = pi_desc->control;
+		WARN(old.nv != POSTED_INTR_WAKEUP_VECTOR,
+		     "Wakeup handler not enabled while the VCPU is blocked\n");
+
+		dest = cpu_physical_id(vcpu->cpu);
+
+		if (x2apic_enabled())
+			new.ndst = dest;
+		else
+			new.ndst = (dest << 8) & 0xFF00;
+
+		/* set 'NV' to 'notification vector' */
+		new.nv = POSTED_INTR_VECTOR;
+	} while (cmpxchg64(&pi_desc->control, old.control,
+			   new.control) != old.control);
+
+	if (!WARN_ON_ONCE(vcpu->pre_pcpu == -1)) {
+		spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		list_del(&vcpu->blocked_vcpu_list);
+		spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		vcpu->pre_pcpu = -1;
+	}
+}
+
 /*
  * This routine does the following things for vCPU which is going
  * to be blocked if VT-d PI is enabled.
@@ -11686,7 +11753,6 @@ static void vmx_enable_log_dirty_pt_masked(struct kvm *kvm,
  */
 static int pi_pre_block(struct kvm_vcpu *vcpu)
 {
-	unsigned long flags;
 	unsigned int dest;
 	struct pi_desc old, new;
 	struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
@@ -11696,34 +11762,20 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
 		!kvm_vcpu_apicv_active(vcpu))
 		return 0;
 
-	vcpu->pre_pcpu = vcpu->cpu;
-	spin_lock_irqsave(&per_cpu(blocked_vcpu_on_cpu_lock,
-			  vcpu->pre_pcpu), flags);
-	list_add_tail(&vcpu->blocked_vcpu_list,
-		      &per_cpu(blocked_vcpu_on_cpu,
-		      vcpu->pre_pcpu));
-	spin_unlock_irqrestore(&per_cpu(blocked_vcpu_on_cpu_lock,
-			       vcpu->pre_pcpu), flags);
+	WARN_ON(irqs_disabled());
+	local_irq_disable();
+	if (!WARN_ON_ONCE(vcpu->pre_pcpu != -1)) {
+		vcpu->pre_pcpu = vcpu->cpu;
+		spin_lock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+		list_add_tail(&vcpu->blocked_vcpu_list,
+			      &per_cpu(blocked_vcpu_on_cpu,
+				       vcpu->pre_pcpu));
+		spin_unlock(&per_cpu(blocked_vcpu_on_cpu_lock, vcpu->pre_pcpu));
+	}
 
 	do {
 		old.control = new.control = pi_desc->control;
 
-		/*
-		 * We should not block the vCPU if
-		 * an interrupt is posted for it.
-		 */
-		if (pi_test_on(pi_desc) == 1) {
-			spin_lock_irqsave(&per_cpu(blocked_vcpu_on_cpu_lock,
-					  vcpu->pre_pcpu), flags);
-			list_del(&vcpu->blocked_vcpu_list);
-			spin_unlock_irqrestore(
-					&per_cpu(blocked_vcpu_on_cpu_lock,
-					vcpu->pre_pcpu), flags);
-			vcpu->pre_pcpu = -1;
-
-			return 1;
-		}
-
 		WARN((pi_desc->sn == 1),
 		     "Warning: SN field of posted-interrupts "
 		     "is set before blocking\n");
@@ -11745,10 +11797,15 @@ static int pi_pre_block(struct kvm_vcpu *vcpu)
 
 		/* set 'NV' to 'wakeup vector' */
 		new.nv = POSTED_INTR_WAKEUP_VECTOR;
-	} while (cmpxchg(&pi_desc->control, old.control,
-			new.control) != old.control);
+	} while (cmpxchg64(&pi_desc->control, old.control,
+			   new.control) != old.control);
 
-	return 0;
+	/* We should not block the vCPU if an interrupt is posted for it.  */
+	if (pi_test_on(pi_desc) == 1)
+		__pi_post_block(vcpu);
+
+	local_irq_enable();
+	return (vcpu->pre_pcpu == -1);
 }
 
 static int vmx_pre_block(struct kvm_vcpu *vcpu)
@@ -11764,44 +11821,13 @@ static int vmx_pre_block(struct kvm_vcpu *vcpu)
 
 static void pi_post_block(struct kvm_vcpu *vcpu)
 {
-	struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
-	struct pi_desc old, new;
-	unsigned int dest;
-	unsigned long flags;
-
-	if (!kvm_arch_has_assigned_device(vcpu->kvm) ||
-		!irq_remapping_cap(IRQ_POSTING_CAP)  ||
-		!kvm_vcpu_apicv_active(vcpu))
+	if (vcpu->pre_pcpu == -1)
 		return;
 
-	do {
-		old.control = new.control = pi_desc->control;
-
-		dest = cpu_physical_id(vcpu->cpu);
-
-		if (x2apic_enabled())
-			new.ndst = dest;
-		else
-			new.ndst = (dest << 8) & 0xFF00;
-
-		/* Allow posting non-urgent interrupts */
-		new.sn = 0;
-
-		/* set 'NV' to 'notification vector' */
-		new.nv = POSTED_INTR_VECTOR;
-	} while (cmpxchg(&pi_desc->control, old.control,
-			new.control) != old.control);
-
-	if(vcpu->pre_pcpu != -1) {
-		spin_lock_irqsave(
-			&per_cpu(blocked_vcpu_on_cpu_lock,
-			vcpu->pre_pcpu), flags);
-		list_del(&vcpu->blocked_vcpu_list);
-		spin_unlock_irqrestore(
-			&per_cpu(blocked_vcpu_on_cpu_lock,
-			vcpu->pre_pcpu), flags);
-		vcpu->pre_pcpu = -1;
-	}
+	WARN_ON(irqs_disabled());
+	local_irq_disable();
+	__pi_post_block(vcpu);
+	local_irq_enable();
 }
 
 static void vmx_post_block(struct kvm_vcpu *vcpu)
@@ -11829,7 +11855,7 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 	struct kvm_lapic_irq irq;
 	struct kvm_vcpu *vcpu;
 	struct vcpu_data vcpu_info;
-	int idx, ret = -EINVAL;
+	int idx, ret = 0;
 
 	if (!kvm_arch_has_assigned_device(kvm) ||
 		!irq_remapping_cap(IRQ_POSTING_CAP) ||
@@ -11838,7 +11864,12 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 
 	idx = srcu_read_lock(&kvm->irq_srcu);
 	irq_rt = srcu_dereference(kvm->irq_routing, &kvm->irq_srcu);
-	BUG_ON(guest_irq >= irq_rt->nr_rt_entries);
+	if (guest_irq >= irq_rt->nr_rt_entries ||
+	    hlist_empty(&irq_rt->map[guest_irq])) {
+		pr_warn_once("no route for guest_irq %u/%u (broken user space?)\n",
+			     guest_irq, irq_rt->nr_rt_entries);
+		goto out;
+	}
 
 	hlist_for_each_entry(e, &irq_rt->map[guest_irq], link) {
 		if (e->type != KVM_IRQ_ROUTING_MSI)
@@ -11881,12 +11912,8 @@ static int vmx_update_pi_irte(struct kvm *kvm, unsigned int host_irq,
 
 		if (set)
 			ret = irq_set_vcpu_affinity(host_irq, &vcpu_info);
-		else {
-			/* suppress notification event before unposting */
-			pi_set_sn(vcpu_to_pi_desc(vcpu));
+		else
 			ret = irq_set_vcpu_affinity(host_irq, NULL);
-			pi_clear_sn(vcpu_to_pi_desc(vcpu));
-		}
 
 		if (ret < 0) {
 			printk(KERN_INFO "%s: failed to update PI IRTE\n",
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 6069af86da3b..03869eb7fcd6 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7225,16 +7225,25 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	int r;
 	sigset_t sigsaved;
 
-	fpu__activate_curr(fpu);
+	fpu__initialize(fpu);
 
 	if (vcpu->sigset_active)
 		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
 
 	if (unlikely(vcpu->arch.mp_state == KVM_MP_STATE_UNINITIALIZED)) {
+		if (kvm_run->immediate_exit) {
+			r = -EINTR;
+			goto out;
+		}
 		kvm_vcpu_block(vcpu);
 		kvm_apic_accept_events(vcpu);
 		kvm_clear_request(KVM_REQ_UNHALT, vcpu);
 		r = -EAGAIN;
+		if (signal_pending(current)) {
+			r = -EINTR;
+			vcpu->run->exit_reason = KVM_EXIT_INTR;
+			++vcpu->stat.signal_exits;
+		}
 		goto out;
 	}
 
@@ -7971,7 +7980,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	BUG_ON(vcpu->kvm == NULL);
 	kvm = vcpu->kvm;
 
-	vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv();
+	vcpu->arch.apicv_active = kvm_x86_ops->get_enable_apicv(vcpu);
 	vcpu->arch.pv.pv_unhalted = false;
 	vcpu->arch.emulate_ctxt.ops = &emulate_ops;
 	if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_reset_bsp(vcpu))
@@ -8452,6 +8461,9 @@ static inline bool kvm_vcpu_has_events(struct kvm_vcpu *vcpu)
 	if (vcpu->arch.pv.pv_unhalted)
 		return true;
 
+	if (vcpu->arch.exception.pending)
+		return true;
+
 	if (kvm_test_request(KVM_REQ_NMI, vcpu) ||
 	    (vcpu->arch.nmi_pending &&
 	     kvm_x86_ops->nmi_allowed(vcpu)))
@@ -8619,6 +8631,13 @@ static int apf_put_user(struct kvm_vcpu *vcpu, u32 val)
 				      sizeof(val));
 }
 
+static int apf_get_user(struct kvm_vcpu *vcpu, u32 *val)
+{
+
+	return kvm_read_guest_cached(vcpu->kvm, &vcpu->arch.apf.data, val,
+				      sizeof(u32));
+}
+
 void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
 				     struct kvm_async_pf *work)
 {
@@ -8646,6 +8665,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
 				 struct kvm_async_pf *work)
 {
 	struct x86_exception fault;
+	u32 val;
 
 	if (work->wakeup_all)
 		work->arch.token = ~0; /* broadcast wakeup */
@@ -8653,15 +8673,26 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
 		kvm_del_async_pf_gfn(vcpu, work->arch.gfn);
 	trace_kvm_async_pf_ready(work->arch.token, work->gva);
 
-	if ((vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED) &&
-	    !apf_put_user(vcpu, KVM_PV_REASON_PAGE_READY)) {
-		fault.vector = PF_VECTOR;
-		fault.error_code_valid = true;
-		fault.error_code = 0;
-		fault.nested_page_fault = false;
-		fault.address = work->arch.token;
-		fault.async_page_fault = true;
-		kvm_inject_page_fault(vcpu, &fault);
+	if (vcpu->arch.apf.msr_val & KVM_ASYNC_PF_ENABLED &&
+	    !apf_get_user(vcpu, &val)) {
+		if (val == KVM_PV_REASON_PAGE_NOT_PRESENT &&
+		    vcpu->arch.exception.pending &&
+		    vcpu->arch.exception.nr == PF_VECTOR &&
+		    !apf_put_user(vcpu, 0)) {
+			vcpu->arch.exception.injected = false;
+			vcpu->arch.exception.pending = false;
+			vcpu->arch.exception.nr = 0;
+			vcpu->arch.exception.has_error_code = false;
+			vcpu->arch.exception.error_code = 0;
+		} else if (!apf_put_user(vcpu, KVM_PV_REASON_PAGE_READY)) {
+			fault.vector = PF_VECTOR;
+			fault.error_code_valid = true;
+			fault.error_code = 0;
+			fault.nested_page_fault = false;
+			fault.address = work->arch.token;
+			fault.async_page_fault = true;
+			kvm_inject_page_fault(vcpu, &fault);
+		}
 	}
 	vcpu->arch.apf.halted = false;
 	vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index 51e349cf5f45..d0b95b7a90b4 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_X86_KVM_X86_H
 #define ARCH_X86_KVM_X86_H
 
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 34a74131a12c..7b181b61170e 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for x86 specific library files.
 #
@@ -23,7 +24,7 @@ lib-y := delay.o misc.o cmdline.o cpu.o
 lib-y += usercopy_$(BITS).o usercopy.o getuser.o putuser.o
 lib-y += memcpy_$(BITS).o
 lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o
-lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o
+lib-$(CONFIG_INSTRUCTION_DECODER) += insn.o inat.o insn-eval.o
 lib-$(CONFIG_RANDOMIZE_BASE) += kaslr.o
 
 obj-y += msr.o msr-reg.o msr-reg-export.o hweight.o
diff --git a/arch/x86/lib/cache-smp.c b/arch/x86/lib/cache-smp.c
index 216a629a4a1a..1811fa4a1b1a 100644
--- a/arch/x86/lib/cache-smp.c
+++ b/arch/x86/lib/cache-smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/smp.h>
 #include <linux/export.h>
 
diff --git a/arch/x86/lib/copy_page_64.S b/arch/x86/lib/copy_page_64.S
index e8508156c99d..fd2d09afa097 100644
--- a/arch/x86/lib/copy_page_64.S
+++ b/arch/x86/lib/copy_page_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Written 2003 by Andi Kleen, based on a kernel by Evandro Menezes */
 
 #include <linux/linkage.h>
diff --git a/arch/x86/lib/csum-partial_64.c b/arch/x86/lib/csum-partial_64.c
index 378e5d5bf9b1..9baca3e054be 100644
--- a/arch/x86/lib/csum-partial_64.c
+++ b/arch/x86/lib/csum-partial_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * arch/x86_64/lib/csum-partial.c
  *
diff --git a/arch/x86/lib/delay.c b/arch/x86/lib/delay.c
index 29df077cb089..553f8fd23cc4 100644
--- a/arch/x86/lib/delay.c
+++ b/arch/x86/lib/delay.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Precise Delay Loops for i386
  *
diff --git a/arch/x86/lib/getuser.S b/arch/x86/lib/getuser.S
index 37b62d412148..c97d935a29e8 100644
--- a/arch/x86/lib/getuser.S
+++ b/arch/x86/lib/getuser.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * __get_user functions.
  *
diff --git a/arch/x86/lib/hweight.S b/arch/x86/lib/hweight.S
index 23d893cbc200..a14f9939c365 100644
--- a/arch/x86/lib/hweight.S
+++ b/arch/x86/lib/hweight.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/export.h>
 
diff --git a/arch/x86/lib/insn-eval.c b/arch/x86/lib/insn-eval.c
new file mode 100644
index 000000000000..35625d279458
--- /dev/null
+++ b/arch/x86/lib/insn-eval.c
@@ -0,0 +1,1364 @@
+/*
+ * Utility functions for x86 operand and address decoding
+ *
+ * Copyright (C) Intel Corporation 2017
+ */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/ratelimit.h>
+#include <linux/mmu_context.h>
+#include <asm/desc_defs.h>
+#include <asm/desc.h>
+#include <asm/inat.h>
+#include <asm/insn.h>
+#include <asm/insn-eval.h>
+#include <asm/ldt.h>
+#include <asm/vm86.h>
+
+#undef pr_fmt
+#define pr_fmt(fmt) "insn: " fmt
+
+enum reg_type {
+	REG_TYPE_RM = 0,
+	REG_TYPE_INDEX,
+	REG_TYPE_BASE,
+};
+
+/**
+ * is_string_insn() - Determine if instruction is a string instruction
+ * @insn:	Instruction containing the opcode to inspect
+ *
+ * Returns:
+ *
+ * true if the instruction, determined by the opcode, is any of the
+ * string instructions as defined in the Intel Software Development manual.
+ * False otherwise.
+ */
+static bool is_string_insn(struct insn *insn)
+{
+	insn_get_opcode(insn);
+
+	/* All string instructions have a 1-byte opcode. */
+	if (insn->opcode.nbytes != 1)
+		return false;
+
+	switch (insn->opcode.bytes[0]) {
+	case 0x6c ... 0x6f:	/* INS, OUTS */
+	case 0xa4 ... 0xa7:	/* MOVS, CMPS */
+	case 0xaa ... 0xaf:	/* STOS, LODS, SCAS */
+		return true;
+	default:
+		return false;
+	}
+}
+
+/**
+ * get_seg_reg_override_idx() - obtain segment register override index
+ * @insn:	Valid instruction with segment override prefixes
+ *
+ * Inspect the instruction prefixes in @insn and find segment overrides, if any.
+ *
+ * Returns:
+ *
+ * A constant identifying the segment register to use, among CS, SS, DS,
+ * ES, FS, or GS. INAT_SEG_REG_DEFAULT is returned if no segment override
+ * prefixes were found.
+ *
+ * -EINVAL in case of error.
+ */
+static int get_seg_reg_override_idx(struct insn *insn)
+{
+	int idx = INAT_SEG_REG_DEFAULT;
+	int num_overrides = 0, i;
+
+	insn_get_prefixes(insn);
+
+	/* Look for any segment override prefixes. */
+	for (i = 0; i < insn->prefixes.nbytes; i++) {
+		insn_attr_t attr;
+
+		attr = inat_get_opcode_attribute(insn->prefixes.bytes[i]);
+		switch (attr) {
+		case INAT_MAKE_PREFIX(INAT_PFX_CS):
+			idx = INAT_SEG_REG_CS;
+			num_overrides++;
+			break;
+		case INAT_MAKE_PREFIX(INAT_PFX_SS):
+			idx = INAT_SEG_REG_SS;
+			num_overrides++;
+			break;
+		case INAT_MAKE_PREFIX(INAT_PFX_DS):
+			idx = INAT_SEG_REG_DS;
+			num_overrides++;
+			break;
+		case INAT_MAKE_PREFIX(INAT_PFX_ES):
+			idx = INAT_SEG_REG_ES;
+			num_overrides++;
+			break;
+		case INAT_MAKE_PREFIX(INAT_PFX_FS):
+			idx = INAT_SEG_REG_FS;
+			num_overrides++;
+			break;
+		case INAT_MAKE_PREFIX(INAT_PFX_GS):
+			idx = INAT_SEG_REG_GS;
+			num_overrides++;
+			break;
+		/* No default action needed. */
+		}
+	}
+
+	/* More than one segment override prefix leads to undefined behavior. */
+	if (num_overrides > 1)
+		return -EINVAL;
+
+	return idx;
+}
+
+/**
+ * check_seg_overrides() - check if segment override prefixes are allowed
+ * @insn:	Valid instruction with segment override prefixes
+ * @regoff:	Operand offset, in pt_regs, for which the check is performed
+ *
+ * For a particular register used in register-indirect addressing, determine if
+ * segment override prefixes can be used. Specifically, no overrides are allowed
+ * for rDI if used with a string instruction.
+ *
+ * Returns:
+ *
+ * True if segment override prefixes can be used with the register indicated
+ * in @regoff. False if otherwise.
+ */
+static bool check_seg_overrides(struct insn *insn, int regoff)
+{
+	if (regoff == offsetof(struct pt_regs, di) && is_string_insn(insn))
+		return false;
+
+	return true;
+}
+
+/**
+ * resolve_default_seg() - resolve default segment register index for an operand
+ * @insn:	Instruction with opcode and address size. Must be valid.
+ * @regs:	Register values as seen when entering kernel mode
+ * @off:	Operand offset, in pt_regs, for which resolution is needed
+ *
+ * Resolve the default segment register index associated with the instruction
+ * operand register indicated by @off. Such index is resolved based on defaults
+ * described in the Intel Software Development Manual.
+ *
+ * Returns:
+ *
+ * If in protected mode, a constant identifying the segment register to use,
+ * among CS, SS, ES or DS. If in long mode, INAT_SEG_REG_IGNORE.
+ *
+ * -EINVAL in case of error.
+ */
+static int resolve_default_seg(struct insn *insn, struct pt_regs *regs, int off)
+{
+	if (user_64bit_mode(regs))
+		return INAT_SEG_REG_IGNORE;
+	/*
+	 * Resolve the default segment register as described in Section 3.7.4
+	 * of the Intel Software Development Manual Vol. 1:
+	 *
+	 *  + DS for all references involving r[ABCD]X, and rSI.
+	 *  + If used in a string instruction, ES for rDI. Otherwise, DS.
+	 *  + AX, CX and DX are not valid register operands in 16-bit address
+	 *    encodings but are valid for 32-bit and 64-bit encodings.
+	 *  + -EDOM is reserved to identify for cases in which no register
+	 *    is used (i.e., displacement-only addressing). Use DS.
+	 *  + SS for rSP or rBP.
+	 *  + CS for rIP.
+	 */
+
+	switch (off) {
+	case offsetof(struct pt_regs, ax):
+	case offsetof(struct pt_regs, cx):
+	case offsetof(struct pt_regs, dx):
+		/* Need insn to verify address size. */
+		if (insn->addr_bytes == 2)
+			return -EINVAL;
+
+	case -EDOM:
+	case offsetof(struct pt_regs, bx):
+	case offsetof(struct pt_regs, si):
+		return INAT_SEG_REG_DS;
+
+	case offsetof(struct pt_regs, di):
+		if (is_string_insn(insn))
+			return INAT_SEG_REG_ES;
+		return INAT_SEG_REG_DS;
+
+	case offsetof(struct pt_regs, bp):
+	case offsetof(struct pt_regs, sp):
+		return INAT_SEG_REG_SS;
+
+	case offsetof(struct pt_regs, ip):
+		return INAT_SEG_REG_CS;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+/**
+ * resolve_seg_reg() - obtain segment register index
+ * @insn:	Instruction with operands
+ * @regs:	Register values as seen when entering kernel mode
+ * @regoff:	Operand offset, in pt_regs, used to deterimine segment register
+ *
+ * Determine the segment register associated with the operands and, if
+ * applicable, prefixes and the instruction pointed by @insn.
+ *
+ * The segment register associated to an operand used in register-indirect
+ * addressing depends on:
+ *
+ * a) Whether running in long mode (in such a case segments are ignored, except
+ * if FS or GS are used).
+ *
+ * b) Whether segment override prefixes can be used. Certain instructions and
+ *    registers do not allow override prefixes.
+ *
+ * c) Whether segment overrides prefixes are found in the instruction prefixes.
+ *
+ * d) If there are not segment override prefixes or they cannot be used, the
+ *    default segment register associated with the operand register is used.
+ *
+ * The function checks first if segment override prefixes can be used with the
+ * operand indicated by @regoff. If allowed, obtain such overridden segment
+ * register index. Lastly, if not prefixes were found or cannot be used, resolve
+ * the segment register index to use based on the defaults described in the
+ * Intel documentation. In long mode, all segment register indexes will be
+ * ignored, except if overrides were found for FS or GS. All these operations
+ * are done using helper functions.
+ *
+ * The operand register, @regoff, is represented as the offset from the base of
+ * pt_regs.
+ *
+ * As stated, the main use of this function is to determine the segment register
+ * index based on the instruction, its operands and prefixes. Hence, @insn
+ * must be valid. However, if @regoff indicates rIP, we don't need to inspect
+ * @insn at all as in this case CS is used in all cases. This case is checked
+ * before proceeding further.
+ *
+ * Please note that this function does not return the value in the segment
+ * register (i.e., the segment selector) but our defined index. The segment
+ * selector needs to be obtained using get_segment_selector() and passing the
+ * segment register index resolved by this function.
+ *
+ * Returns:
+ *
+ * An index identifying the segment register to use, among CS, SS, DS,
+ * ES, FS, or GS. INAT_SEG_REG_IGNORE is returned if running in long mode.
+ *
+ * -EINVAL in case of error.
+ */
+static int resolve_seg_reg(struct insn *insn, struct pt_regs *regs, int regoff)
+{
+	int idx;
+
+	/*
+	 * In the unlikely event of having to resolve the segment register
+	 * index for rIP, do it first. Segment override prefixes should not
+	 * be used. Hence, it is not necessary to inspect the instruction,
+	 * which may be invalid at this point.
+	 */
+	if (regoff == offsetof(struct pt_regs, ip)) {
+		if (user_64bit_mode(regs))
+			return INAT_SEG_REG_IGNORE;
+		else
+			return INAT_SEG_REG_CS;
+	}
+
+	if (!insn)
+		return -EINVAL;
+
+	if (!check_seg_overrides(insn, regoff))
+		return resolve_default_seg(insn, regs, regoff);
+
+	idx = get_seg_reg_override_idx(insn);
+	if (idx < 0)
+		return idx;
+
+	if (idx == INAT_SEG_REG_DEFAULT)
+		return resolve_default_seg(insn, regs, regoff);
+
+	/*
+	 * In long mode, segment override prefixes are ignored, except for
+	 * overrides for FS and GS.
+	 */
+	if (user_64bit_mode(regs)) {
+		if (idx != INAT_SEG_REG_FS &&
+		    idx != INAT_SEG_REG_GS)
+			idx = INAT_SEG_REG_IGNORE;
+	}
+
+	return idx;
+}
+
+/**
+ * get_segment_selector() - obtain segment selector
+ * @regs:		Register values as seen when entering kernel mode
+ * @seg_reg_idx:	Segment register index to use
+ *
+ * Obtain the segment selector from any of the CS, SS, DS, ES, FS, GS segment
+ * registers. In CONFIG_X86_32, the segment is obtained from either pt_regs or
+ * kernel_vm86_regs as applicable. In CONFIG_X86_64, CS and SS are obtained
+ * from pt_regs. DS, ES, FS and GS are obtained by reading the actual CPU
+ * registers. This done for only for completeness as in CONFIG_X86_64 segment
+ * registers are ignored.
+ *
+ * Returns:
+ *
+ * Value of the segment selector, including null when running in
+ * long mode.
+ *
+ * -EINVAL on error.
+ */
+static short get_segment_selector(struct pt_regs *regs, int seg_reg_idx)
+{
+#ifdef CONFIG_X86_64
+	unsigned short sel;
+
+	switch (seg_reg_idx) {
+	case INAT_SEG_REG_IGNORE:
+		return 0;
+	case INAT_SEG_REG_CS:
+		return (unsigned short)(regs->cs & 0xffff);
+	case INAT_SEG_REG_SS:
+		return (unsigned short)(regs->ss & 0xffff);
+	case INAT_SEG_REG_DS:
+		savesegment(ds, sel);
+		return sel;
+	case INAT_SEG_REG_ES:
+		savesegment(es, sel);
+		return sel;
+	case INAT_SEG_REG_FS:
+		savesegment(fs, sel);
+		return sel;
+	case INAT_SEG_REG_GS:
+		savesegment(gs, sel);
+		return sel;
+	default:
+		return -EINVAL;
+	}
+#else /* CONFIG_X86_32 */
+	struct kernel_vm86_regs *vm86regs = (struct kernel_vm86_regs *)regs;
+
+	if (v8086_mode(regs)) {
+		switch (seg_reg_idx) {
+		case INAT_SEG_REG_CS:
+			return (unsigned short)(regs->cs & 0xffff);
+		case INAT_SEG_REG_SS:
+			return (unsigned short)(regs->ss & 0xffff);
+		case INAT_SEG_REG_DS:
+			return vm86regs->ds;
+		case INAT_SEG_REG_ES:
+			return vm86regs->es;
+		case INAT_SEG_REG_FS:
+			return vm86regs->fs;
+		case INAT_SEG_REG_GS:
+			return vm86regs->gs;
+		case INAT_SEG_REG_IGNORE:
+			/* fall through */
+		default:
+			return -EINVAL;
+		}
+	}
+
+	switch (seg_reg_idx) {
+	case INAT_SEG_REG_CS:
+		return (unsigned short)(regs->cs & 0xffff);
+	case INAT_SEG_REG_SS:
+		return (unsigned short)(regs->ss & 0xffff);
+	case INAT_SEG_REG_DS:
+		return (unsigned short)(regs->ds & 0xffff);
+	case INAT_SEG_REG_ES:
+		return (unsigned short)(regs->es & 0xffff);
+	case INAT_SEG_REG_FS:
+		return (unsigned short)(regs->fs & 0xffff);
+	case INAT_SEG_REG_GS:
+		/*
+		 * GS may or may not be in regs as per CONFIG_X86_32_LAZY_GS.
+		 * The macro below takes care of both cases.
+		 */
+		return get_user_gs(regs);
+	case INAT_SEG_REG_IGNORE:
+		/* fall through */
+	default:
+		return -EINVAL;
+	}
+#endif /* CONFIG_X86_64 */
+}
+
+static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
+			  enum reg_type type)
+{
+	int regno = 0;
+
+	static const int regoff[] = {
+		offsetof(struct pt_regs, ax),
+		offsetof(struct pt_regs, cx),
+		offsetof(struct pt_regs, dx),
+		offsetof(struct pt_regs, bx),
+		offsetof(struct pt_regs, sp),
+		offsetof(struct pt_regs, bp),
+		offsetof(struct pt_regs, si),
+		offsetof(struct pt_regs, di),
+#ifdef CONFIG_X86_64
+		offsetof(struct pt_regs, r8),
+		offsetof(struct pt_regs, r9),
+		offsetof(struct pt_regs, r10),
+		offsetof(struct pt_regs, r11),
+		offsetof(struct pt_regs, r12),
+		offsetof(struct pt_regs, r13),
+		offsetof(struct pt_regs, r14),
+		offsetof(struct pt_regs, r15),
+#endif
+	};
+	int nr_registers = ARRAY_SIZE(regoff);
+	/*
+	 * Don't possibly decode a 32-bit instructions as
+	 * reading a 64-bit-only register.
+	 */
+	if (IS_ENABLED(CONFIG_X86_64) && !insn->x86_64)
+		nr_registers -= 8;
+
+	switch (type) {
+	case REG_TYPE_RM:
+		regno = X86_MODRM_RM(insn->modrm.value);
+
+		/*
+		 * ModRM.mod == 0 and ModRM.rm == 5 means a 32-bit displacement
+		 * follows the ModRM byte.
+		 */
+		if (!X86_MODRM_MOD(insn->modrm.value) && regno == 5)
+			return -EDOM;
+
+		if (X86_REX_B(insn->rex_prefix.value))
+			regno += 8;
+		break;
+
+	case REG_TYPE_INDEX:
+		regno = X86_SIB_INDEX(insn->sib.value);
+		if (X86_REX_X(insn->rex_prefix.value))
+			regno += 8;
+
+		/*
+		 * If ModRM.mod != 3 and SIB.index = 4 the scale*index
+		 * portion of the address computation is null. This is
+		 * true only if REX.X is 0. In such a case, the SIB index
+		 * is used in the address computation.
+		 */
+		if (X86_MODRM_MOD(insn->modrm.value) != 3 && regno == 4)
+			return -EDOM;
+		break;
+
+	case REG_TYPE_BASE:
+		regno = X86_SIB_BASE(insn->sib.value);
+		/*
+		 * If ModRM.mod is 0 and SIB.base == 5, the base of the
+		 * register-indirect addressing is 0. In this case, a
+		 * 32-bit displacement follows the SIB byte.
+		 */
+		if (!X86_MODRM_MOD(insn->modrm.value) && regno == 5)
+			return -EDOM;
+
+		if (X86_REX_B(insn->rex_prefix.value))
+			regno += 8;
+		break;
+
+	default:
+		pr_err_ratelimited("invalid register type: %d\n", type);
+		return -EINVAL;
+	}
+
+	if (regno >= nr_registers) {
+		WARN_ONCE(1, "decoded an instruction with an invalid register");
+		return -EINVAL;
+	}
+	return regoff[regno];
+}
+
+/**
+ * get_reg_offset_16() - Obtain offset of register indicated by instruction
+ * @insn:	Instruction containing ModRM byte
+ * @regs:	Register values as seen when entering kernel mode
+ * @offs1:	Offset of the first operand register
+ * @offs2:	Offset of the second opeand register, if applicable
+ *
+ * Obtain the offset, in pt_regs, of the registers indicated by the ModRM byte
+ * in @insn. This function is to be used with 16-bit address encodings. The
+ * @offs1 and @offs2 will be written with the offset of the two registers
+ * indicated by the instruction. In cases where any of the registers is not
+ * referenced by the instruction, the value will be set to -EDOM.
+ *
+ * Returns:
+ *
+ * 0 on success, -EINVAL on error.
+ */
+static int get_reg_offset_16(struct insn *insn, struct pt_regs *regs,
+			     int *offs1, int *offs2)
+{
+	/*
+	 * 16-bit addressing can use one or two registers. Specifics of
+	 * encodings are given in Table 2-1. "16-Bit Addressing Forms with the
+	 * ModR/M Byte" of the Intel Software Development Manual.
+	 */
+	static const int regoff1[] = {
+		offsetof(struct pt_regs, bx),
+		offsetof(struct pt_regs, bx),
+		offsetof(struct pt_regs, bp),
+		offsetof(struct pt_regs, bp),
+		offsetof(struct pt_regs, si),
+		offsetof(struct pt_regs, di),
+		offsetof(struct pt_regs, bp),
+		offsetof(struct pt_regs, bx),
+	};
+
+	static const int regoff2[] = {
+		offsetof(struct pt_regs, si),
+		offsetof(struct pt_regs, di),
+		offsetof(struct pt_regs, si),
+		offsetof(struct pt_regs, di),
+		-EDOM,
+		-EDOM,
+		-EDOM,
+		-EDOM,
+	};
+
+	if (!offs1 || !offs2)
+		return -EINVAL;
+
+	/* Operand is a register, use the generic function. */
+	if (X86_MODRM_MOD(insn->modrm.value) == 3) {
+		*offs1 = insn_get_modrm_rm_off(insn, regs);
+		*offs2 = -EDOM;
+		return 0;
+	}
+
+	*offs1 = regoff1[X86_MODRM_RM(insn->modrm.value)];
+	*offs2 = regoff2[X86_MODRM_RM(insn->modrm.value)];
+
+	/*
+	 * If ModRM.mod is 0 and ModRM.rm is 110b, then we use displacement-
+	 * only addressing. This means that no registers are involved in
+	 * computing the effective address. Thus, ensure that the first
+	 * register offset is invalild. The second register offset is already
+	 * invalid under the aforementioned conditions.
+	 */
+	if ((X86_MODRM_MOD(insn->modrm.value) == 0) &&
+	    (X86_MODRM_RM(insn->modrm.value) == 6))
+		*offs1 = -EDOM;
+
+	return 0;
+}
+
+/**
+ * get_desc() - Obtain pointer to a segment descriptor
+ * @sel:	Segment selector
+ *
+ * Given a segment selector, obtain a pointer to the segment descriptor.
+ * Both global and local descriptor tables are supported.
+ *
+ * Returns:
+ *
+ * Pointer to segment descriptor on success.
+ *
+ * NULL on error.
+ */
+static struct desc_struct *get_desc(unsigned short sel)
+{
+	struct desc_ptr gdt_desc = {0, 0};
+	unsigned long desc_base;
+
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+	if ((sel & SEGMENT_TI_MASK) == SEGMENT_LDT) {
+		struct desc_struct *desc = NULL;
+		struct ldt_struct *ldt;
+
+		/* Bits [15:3] contain the index of the desired entry. */
+		sel >>= 3;
+
+		mutex_lock(&current->active_mm->context.lock);
+		ldt = current->active_mm->context.ldt;
+		if (ldt && sel < ldt->nr_entries)
+			desc = &ldt->entries[sel];
+
+		mutex_unlock(&current->active_mm->context.lock);
+
+		return desc;
+	}
+#endif
+	native_store_gdt(&gdt_desc);
+
+	/*
+	 * Segment descriptors have a size of 8 bytes. Thus, the index is
+	 * multiplied by 8 to obtain the memory offset of the desired descriptor
+	 * from the base of the GDT. As bits [15:3] of the segment selector
+	 * contain the index, it can be regarded as multiplied by 8 already.
+	 * All that remains is to clear bits [2:0].
+	 */
+	desc_base = sel & ~(SEGMENT_RPL_MASK | SEGMENT_TI_MASK);
+
+	if (desc_base > gdt_desc.size)
+		return NULL;
+
+	return (struct desc_struct *)(gdt_desc.address + desc_base);
+}
+
+/**
+ * insn_get_seg_base() - Obtain base address of segment descriptor.
+ * @regs:		Register values as seen when entering kernel mode
+ * @seg_reg_idx:	Index of the segment register pointing to seg descriptor
+ *
+ * Obtain the base address of the segment as indicated by the segment descriptor
+ * pointed by the segment selector. The segment selector is obtained from the
+ * input segment register index @seg_reg_idx.
+ *
+ * Returns:
+ *
+ * In protected mode, base address of the segment. Zero in long mode,
+ * except when FS or GS are used. In virtual-8086 mode, the segment
+ * selector shifted 4 bits to the right.
+ *
+ * -1L in case of error.
+ */
+unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx)
+{
+	struct desc_struct *desc;
+	short sel;
+
+	sel = get_segment_selector(regs, seg_reg_idx);
+	if (sel < 0)
+		return -1L;
+
+	if (v8086_mode(regs))
+		/*
+		 * Base is simply the segment selector shifted 4
+		 * bits to the right.
+		 */
+		return (unsigned long)(sel << 4);
+
+	if (user_64bit_mode(regs)) {
+		/*
+		 * Only FS or GS will have a base address, the rest of
+		 * the segments' bases are forced to 0.
+		 */
+		unsigned long base;
+
+		if (seg_reg_idx == INAT_SEG_REG_FS)
+			rdmsrl(MSR_FS_BASE, base);
+		else if (seg_reg_idx == INAT_SEG_REG_GS)
+			/*
+			 * swapgs was called at the kernel entry point. Thus,
+			 * MSR_KERNEL_GS_BASE will have the user-space GS base.
+			 */
+			rdmsrl(MSR_KERNEL_GS_BASE, base);
+		else
+			base = 0;
+		return base;
+	}
+
+	/* In protected mode the segment selector cannot be null. */
+	if (!sel)
+		return -1L;
+
+	desc = get_desc(sel);
+	if (!desc)
+		return -1L;
+
+	return get_desc_base(desc);
+}
+
+/**
+ * get_seg_limit() - Obtain the limit of a segment descriptor
+ * @regs:		Register values as seen when entering kernel mode
+ * @seg_reg_idx:	Index of the segment register pointing to seg descriptor
+ *
+ * Obtain the limit of the segment as indicated by the segment descriptor
+ * pointed by the segment selector. The segment selector is obtained from the
+ * input segment register index @seg_reg_idx.
+ *
+ * Returns:
+ *
+ * In protected mode, the limit of the segment descriptor in bytes.
+ * In long mode and virtual-8086 mode, segment limits are not enforced. Thus,
+ * limit is returned as -1L to imply a limit-less segment.
+ *
+ * Zero is returned on error.
+ */
+static unsigned long get_seg_limit(struct pt_regs *regs, int seg_reg_idx)
+{
+	struct desc_struct *desc;
+	unsigned long limit;
+	short sel;
+
+	sel = get_segment_selector(regs, seg_reg_idx);
+	if (sel < 0)
+		return 0;
+
+	if (user_64bit_mode(regs) || v8086_mode(regs))
+		return -1L;
+
+	if (!sel)
+		return 0;
+
+	desc = get_desc(sel);
+	if (!desc)
+		return 0;
+
+	/*
+	 * If the granularity bit is set, the limit is given in multiples
+	 * of 4096. This also means that the 12 least significant bits are
+	 * not tested when checking the segment limits. In practice,
+	 * this means that the segment ends in (limit << 12) + 0xfff.
+	 */
+	limit = get_desc_limit(desc);
+	if (desc->g)
+		limit = (limit << 12) + 0xfff;
+
+	return limit;
+}
+
+/**
+ * insn_get_code_seg_params() - Obtain code segment parameters
+ * @regs:	Structure with register values as seen when entering kernel mode
+ *
+ * Obtain address and operand sizes of the code segment. It is obtained from the
+ * selector contained in the CS register in regs. In protected mode, the default
+ * address is determined by inspecting the L and D bits of the segment
+ * descriptor. In virtual-8086 mode, the default is always two bytes for both
+ * address and operand sizes.
+ *
+ * Returns:
+ *
+ * A signed 8-bit value containing the default parameters on success.
+ *
+ * -EINVAL on error.
+ */
+char insn_get_code_seg_params(struct pt_regs *regs)
+{
+	struct desc_struct *desc;
+	short sel;
+
+	if (v8086_mode(regs))
+		/* Address and operand size are both 16-bit. */
+		return INSN_CODE_SEG_PARAMS(2, 2);
+
+	sel = get_segment_selector(regs, INAT_SEG_REG_CS);
+	if (sel < 0)
+		return sel;
+
+	desc = get_desc(sel);
+	if (!desc)
+		return -EINVAL;
+
+	/*
+	 * The most significant byte of the Type field of the segment descriptor
+	 * determines whether a segment contains data or code. If this is a data
+	 * segment, return error.
+	 */
+	if (!(desc->type & BIT(3)))
+		return -EINVAL;
+
+	switch ((desc->l << 1) | desc->d) {
+	case 0: /*
+		 * Legacy mode. CS.L=0, CS.D=0. Address and operand size are
+		 * both 16-bit.
+		 */
+		return INSN_CODE_SEG_PARAMS(2, 2);
+	case 1: /*
+		 * Legacy mode. CS.L=0, CS.D=1. Address and operand size are
+		 * both 32-bit.
+		 */
+		return INSN_CODE_SEG_PARAMS(4, 4);
+	case 2: /*
+		 * IA-32e 64-bit mode. CS.L=1, CS.D=0. Address size is 64-bit;
+		 * operand size is 32-bit.
+		 */
+		return INSN_CODE_SEG_PARAMS(4, 8);
+	case 3: /* Invalid setting. CS.L=1, CS.D=1 */
+		/* fall through */
+	default:
+		return -EINVAL;
+	}
+}
+
+/**
+ * insn_get_modrm_rm_off() - Obtain register in r/m part of the ModRM byte
+ * @insn:	Instruction containing the ModRM byte
+ * @regs:	Register values as seen when entering kernel mode
+ *
+ * Returns:
+ *
+ * The register indicated by the r/m part of the ModRM byte. The
+ * register is obtained as an offset from the base of pt_regs. In specific
+ * cases, the returned value can be -EDOM to indicate that the particular value
+ * of ModRM does not refer to a register and shall be ignored.
+ */
+int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs)
+{
+	return get_reg_offset(insn, regs, REG_TYPE_RM);
+}
+
+/**
+ * get_seg_base_limit() - obtain base address and limit of a segment
+ * @insn:	Instruction. Must be valid.
+ * @regs:	Register values as seen when entering kernel mode
+ * @regoff:	Operand offset, in pt_regs, used to resolve segment descriptor
+ * @base:	Obtained segment base
+ * @limit:	Obtained segment limit
+ *
+ * Obtain the base address and limit of the segment associated with the operand
+ * @regoff and, if any or allowed, override prefixes in @insn. This function is
+ * different from insn_get_seg_base() as the latter does not resolve the segment
+ * associated with the instruction operand. If a limit is not needed (e.g.,
+ * when running in long mode), @limit can be NULL.
+ *
+ * Returns:
+ *
+ * 0 on success. @base and @limit will contain the base address and of the
+ * resolved segment, respectively.
+ *
+ * -EINVAL on error.
+ */
+static int get_seg_base_limit(struct insn *insn, struct pt_regs *regs,
+			      int regoff, unsigned long *base,
+			      unsigned long *limit)
+{
+	int seg_reg_idx;
+
+	if (!base)
+		return -EINVAL;
+
+	seg_reg_idx = resolve_seg_reg(insn, regs, regoff);
+	if (seg_reg_idx < 0)
+		return seg_reg_idx;
+
+	*base = insn_get_seg_base(regs, seg_reg_idx);
+	if (*base == -1L)
+		return -EINVAL;
+
+	if (!limit)
+		return 0;
+
+	*limit = get_seg_limit(regs, seg_reg_idx);
+	if (!(*limit))
+		return -EINVAL;
+
+	return 0;
+}
+
+/**
+ * get_eff_addr_reg() - Obtain effective address from register operand
+ * @insn:	Instruction. Must be valid.
+ * @regs:	Register values as seen when entering kernel mode
+ * @regoff:	Obtained operand offset, in pt_regs, with the effective address
+ * @eff_addr:	Obtained effective address
+ *
+ * Obtain the effective address stored in the register operand as indicated by
+ * the ModRM byte. This function is to be used only with register addressing
+ * (i.e.,  ModRM.mod is 3). The effective address is saved in @eff_addr. The
+ * register operand, as an offset from the base of pt_regs, is saved in @regoff;
+ * such offset can then be used to resolve the segment associated with the
+ * operand. This function can be used with any of the supported address sizes
+ * in x86.
+ *
+ * Returns:
+ *
+ * 0 on success. @eff_addr will have the effective address stored in the
+ * operand indicated by ModRM. @regoff will have such operand as an offset from
+ * the base of pt_regs.
+ *
+ * -EINVAL on error.
+ */
+static int get_eff_addr_reg(struct insn *insn, struct pt_regs *regs,
+			    int *regoff, long *eff_addr)
+{
+	insn_get_modrm(insn);
+
+	if (!insn->modrm.nbytes)
+		return -EINVAL;
+
+	if (X86_MODRM_MOD(insn->modrm.value) != 3)
+		return -EINVAL;
+
+	*regoff = get_reg_offset(insn, regs, REG_TYPE_RM);
+	if (*regoff < 0)
+		return -EINVAL;
+
+	/* Ignore bytes that are outside the address size. */
+	if (insn->addr_bytes == 2)
+		*eff_addr = regs_get_register(regs, *regoff) & 0xffff;
+	else if (insn->addr_bytes == 4)
+		*eff_addr = regs_get_register(regs, *regoff) & 0xffffffff;
+	else /* 64-bit address */
+		*eff_addr = regs_get_register(regs, *regoff);
+
+	return 0;
+}
+
+/**
+ * get_eff_addr_modrm() - Obtain referenced effective address via ModRM
+ * @insn:	Instruction. Must be valid.
+ * @regs:	Register values as seen when entering kernel mode
+ * @regoff:	Obtained operand offset, in pt_regs, associated with segment
+ * @eff_addr:	Obtained effective address
+ *
+ * Obtain the effective address referenced by the ModRM byte of @insn. After
+ * identifying the registers involved in the register-indirect memory reference,
+ * its value is obtained from the operands in @regs. The computed address is
+ * stored @eff_addr. Also, the register operand that indicates the associated
+ * segment is stored in @regoff, this parameter can later be used to determine
+ * such segment.
+ *
+ * Returns:
+ *
+ * 0 on success. @eff_addr will have the referenced effective address. @regoff
+ * will have a register, as an offset from the base of pt_regs, that can be used
+ * to resolve the associated segment.
+ *
+ * -EINVAL on error.
+ */
+static int get_eff_addr_modrm(struct insn *insn, struct pt_regs *regs,
+			      int *regoff, long *eff_addr)
+{
+	long tmp;
+
+	if (insn->addr_bytes != 8 && insn->addr_bytes != 4)
+		return -EINVAL;
+
+	insn_get_modrm(insn);
+
+	if (!insn->modrm.nbytes)
+		return -EINVAL;
+
+	if (X86_MODRM_MOD(insn->modrm.value) > 2)
+		return -EINVAL;
+
+	*regoff = get_reg_offset(insn, regs, REG_TYPE_RM);
+
+	/*
+	 * -EDOM means that we must ignore the address_offset. In such a case,
+	 * in 64-bit mode the effective address relative to the rIP of the
+	 * following instruction.
+	 */
+	if (*regoff == -EDOM) {
+		if (user_64bit_mode(regs))
+			tmp = regs->ip + insn->length;
+		else
+			tmp = 0;
+	} else if (*regoff < 0) {
+		return -EINVAL;
+	} else {
+		tmp = regs_get_register(regs, *regoff);
+	}
+
+	if (insn->addr_bytes == 4) {
+		int addr32 = (int)(tmp & 0xffffffff) + insn->displacement.value;
+
+		*eff_addr = addr32 & 0xffffffff;
+	} else {
+		*eff_addr = tmp + insn->displacement.value;
+	}
+
+	return 0;
+}
+
+/**
+ * get_eff_addr_modrm_16() - Obtain referenced effective address via ModRM
+ * @insn:	Instruction. Must be valid.
+ * @regs:	Register values as seen when entering kernel mode
+ * @regoff:	Obtained operand offset, in pt_regs, associated with segment
+ * @eff_addr:	Obtained effective address
+ *
+ * Obtain the 16-bit effective address referenced by the ModRM byte of @insn.
+ * After identifying the registers involved in the register-indirect memory
+ * reference, its value is obtained from the operands in @regs. The computed
+ * address is stored @eff_addr. Also, the register operand that indicates
+ * the associated segment is stored in @regoff, this parameter can later be used
+ * to determine such segment.
+ *
+ * Returns:
+ *
+ * 0 on success. @eff_addr will have the referenced effective address. @regoff
+ * will have a register, as an offset from the base of pt_regs, that can be used
+ * to resolve the associated segment.
+ *
+ * -EINVAL on error.
+ */
+static int get_eff_addr_modrm_16(struct insn *insn, struct pt_regs *regs,
+				 int *regoff, short *eff_addr)
+{
+	int addr_offset1, addr_offset2, ret;
+	short addr1 = 0, addr2 = 0, displacement;
+
+	if (insn->addr_bytes != 2)
+		return -EINVAL;
+
+	insn_get_modrm(insn);
+
+	if (!insn->modrm.nbytes)
+		return -EINVAL;
+
+	if (X86_MODRM_MOD(insn->modrm.value) > 2)
+		return -EINVAL;
+
+	ret = get_reg_offset_16(insn, regs, &addr_offset1, &addr_offset2);
+	if (ret < 0)
+		return -EINVAL;
+
+	/*
+	 * Don't fail on invalid offset values. They might be invalid because
+	 * they cannot be used for this particular value of ModRM. Instead, use
+	 * them in the computation only if they contain a valid value.
+	 */
+	if (addr_offset1 != -EDOM)
+		addr1 = regs_get_register(regs, addr_offset1) & 0xffff;
+
+	if (addr_offset2 != -EDOM)
+		addr2 = regs_get_register(regs, addr_offset2) & 0xffff;
+
+	displacement = insn->displacement.value & 0xffff;
+	*eff_addr = addr1 + addr2 + displacement;
+
+	/*
+	 * The first operand register could indicate to use of either SS or DS
+	 * registers to obtain the segment selector.  The second operand
+	 * register can only indicate the use of DS. Thus, the first operand
+	 * will be used to obtain the segment selector.
+	 */
+	*regoff = addr_offset1;
+
+	return 0;
+}
+
+/**
+ * get_eff_addr_sib() - Obtain referenced effective address via SIB
+ * @insn:	Instruction. Must be valid.
+ * @regs:	Register values as seen when entering kernel mode
+ * @regoff:	Obtained operand offset, in pt_regs, associated with segment
+ * @eff_addr:	Obtained effective address
+ *
+ * Obtain the effective address referenced by the SIB byte of @insn. After
+ * identifying the registers involved in the indexed, register-indirect memory
+ * reference, its value is obtained from the operands in @regs. The computed
+ * address is stored @eff_addr. Also, the register operand that indicates the
+ * associated segment is stored in @regoff, this parameter can later be used to
+ * determine such segment.
+ *
+ * Returns:
+ *
+ * 0 on success. @eff_addr will have the referenced effective address.
+ * @base_offset will have a register, as an offset from the base of pt_regs,
+ * that can be used to resolve the associated segment.
+ *
+ * -EINVAL on error.
+ */
+static int get_eff_addr_sib(struct insn *insn, struct pt_regs *regs,
+			    int *base_offset, long *eff_addr)
+{
+	long base, indx;
+	int indx_offset;
+
+	if (insn->addr_bytes != 8 && insn->addr_bytes != 4)
+		return -EINVAL;
+
+	insn_get_modrm(insn);
+
+	if (!insn->modrm.nbytes)
+		return -EINVAL;
+
+	if (X86_MODRM_MOD(insn->modrm.value) > 2)
+		return -EINVAL;
+
+	insn_get_sib(insn);
+
+	if (!insn->sib.nbytes)
+		return -EINVAL;
+
+	*base_offset = get_reg_offset(insn, regs, REG_TYPE_BASE);
+	indx_offset = get_reg_offset(insn, regs, REG_TYPE_INDEX);
+
+	/*
+	 * Negative values in the base and index offset means an error when
+	 * decoding the SIB byte. Except -EDOM, which means that the registers
+	 * should not be used in the address computation.
+	 */
+	if (*base_offset == -EDOM)
+		base = 0;
+	else if (*base_offset < 0)
+		return -EINVAL;
+	else
+		base = regs_get_register(regs, *base_offset);
+
+	if (indx_offset == -EDOM)
+		indx = 0;
+	else if (indx_offset < 0)
+		return -EINVAL;
+	else
+		indx = regs_get_register(regs, indx_offset);
+
+	if (insn->addr_bytes == 4) {
+		int addr32, base32, idx32;
+
+		base32 = base & 0xffffffff;
+		idx32 = indx & 0xffffffff;
+
+		addr32 = base32 + idx32 * (1 << X86_SIB_SCALE(insn->sib.value));
+		addr32 += insn->displacement.value;
+
+		*eff_addr = addr32 & 0xffffffff;
+	} else {
+		*eff_addr = base + indx * (1 << X86_SIB_SCALE(insn->sib.value));
+		*eff_addr += insn->displacement.value;
+	}
+
+	return 0;
+}
+
+/**
+ * get_addr_ref_16() - Obtain the 16-bit address referred by instruction
+ * @insn:	Instruction containing ModRM byte and displacement
+ * @regs:	Register values as seen when entering kernel mode
+ *
+ * This function is to be used with 16-bit address encodings. Obtain the memory
+ * address referred by the instruction's ModRM and displacement bytes. Also, the
+ * segment used as base is determined by either any segment override prefixes in
+ * @insn or the default segment of the registers involved in the address
+ * computation. In protected mode, segment limits are enforced.
+ *
+ * Returns:
+ *
+ * Linear address referenced by the instruction operands on success.
+ *
+ * -1L on error.
+ */
+static void __user *get_addr_ref_16(struct insn *insn, struct pt_regs *regs)
+{
+	unsigned long linear_addr = -1L, seg_base, seg_limit;
+	int ret, regoff;
+	short eff_addr;
+	long tmp;
+
+	insn_get_modrm(insn);
+	insn_get_displacement(insn);
+
+	if (insn->addr_bytes != 2)
+		goto out;
+
+	if (X86_MODRM_MOD(insn->modrm.value) == 3) {
+		ret = get_eff_addr_reg(insn, regs, &regoff, &tmp);
+		if (ret)
+			goto out;
+
+		eff_addr = tmp;
+	} else {
+		ret = get_eff_addr_modrm_16(insn, regs, &regoff, &eff_addr);
+		if (ret)
+			goto out;
+	}
+
+	ret = get_seg_base_limit(insn, regs, regoff, &seg_base, &seg_limit);
+	if (ret)
+		goto out;
+
+	/*
+	 * Before computing the linear address, make sure the effective address
+	 * is within the limits of the segment. In virtual-8086 mode, segment
+	 * limits are not enforced. In such a case, the segment limit is -1L to
+	 * reflect this fact.
+	 */
+	if ((unsigned long)(eff_addr & 0xffff) > seg_limit)
+		goto out;
+
+	linear_addr = (unsigned long)(eff_addr & 0xffff) + seg_base;
+
+	/* Limit linear address to 20 bits */
+	if (v8086_mode(regs))
+		linear_addr &= 0xfffff;
+
+out:
+	return (void __user *)linear_addr;
+}
+
+/**
+ * get_addr_ref_32() - Obtain a 32-bit linear address
+ * @insn:	Instruction with ModRM, SIB bytes and displacement
+ * @regs:	Register values as seen when entering kernel mode
+ *
+ * This function is to be used with 32-bit address encodings to obtain the
+ * linear memory address referred by the instruction's ModRM, SIB,
+ * displacement bytes and segment base address, as applicable. If in protected
+ * mode, segment limits are enforced.
+ *
+ * Returns:
+ *
+ * Linear address referenced by instruction and registers on success.
+ *
+ * -1L on error.
+ */
+static void __user *get_addr_ref_32(struct insn *insn, struct pt_regs *regs)
+{
+	unsigned long linear_addr = -1L, seg_base, seg_limit;
+	int eff_addr, regoff;
+	long tmp;
+	int ret;
+
+	if (insn->addr_bytes != 4)
+		goto out;
+
+	if (X86_MODRM_MOD(insn->modrm.value) == 3) {
+		ret = get_eff_addr_reg(insn, regs, &regoff, &tmp);
+		if (ret)
+			goto out;
+
+		eff_addr = tmp;
+
+	} else {
+		if (insn->sib.nbytes) {
+			ret = get_eff_addr_sib(insn, regs, &regoff, &tmp);
+			if (ret)
+				goto out;
+
+			eff_addr = tmp;
+		} else {
+			ret = get_eff_addr_modrm(insn, regs, &regoff, &tmp);
+			if (ret)
+				goto out;
+
+			eff_addr = tmp;
+		}
+	}
+
+	ret = get_seg_base_limit(insn, regs, regoff, &seg_base, &seg_limit);
+	if (ret)
+		goto out;
+
+	/*
+	 * In protected mode, before computing the linear address, make sure
+	 * the effective address is within the limits of the segment.
+	 * 32-bit addresses can be used in long and virtual-8086 modes if an
+	 * address override prefix is used. In such cases, segment limits are
+	 * not enforced. When in virtual-8086 mode, the segment limit is -1L
+	 * to reflect this situation.
+	 *
+	 * After computed, the effective address is treated as an unsigned
+	 * quantity.
+	 */
+	if (!user_64bit_mode(regs) && ((unsigned int)eff_addr > seg_limit))
+		goto out;
+
+	/*
+	 * Even though 32-bit address encodings are allowed in virtual-8086
+	 * mode, the address range is still limited to [0x-0xffff].
+	 */
+	if (v8086_mode(regs) && (eff_addr & ~0xffff))
+		goto out;
+
+	/*
+	 * Data type long could be 64 bits in size. Ensure that our 32-bit
+	 * effective address is not sign-extended when computing the linear
+	 * address.
+	 */
+	linear_addr = (unsigned long)(eff_addr & 0xffffffff) + seg_base;
+
+	/* Limit linear address to 20 bits */
+	if (v8086_mode(regs))
+		linear_addr &= 0xfffff;
+
+out:
+	return (void __user *)linear_addr;
+}
+
+/**
+ * get_addr_ref_64() - Obtain a 64-bit linear address
+ * @insn:	Instruction struct with ModRM and SIB bytes and displacement
+ * @regs:	Structure with register values as seen when entering kernel mode
+ *
+ * This function is to be used with 64-bit address encodings to obtain the
+ * linear memory address referred by the instruction's ModRM, SIB,
+ * displacement bytes and segment base address, as applicable.
+ *
+ * Returns:
+ *
+ * Linear address referenced by instruction and registers on success.
+ *
+ * -1L on error.
+ */
+#ifndef CONFIG_X86_64
+static void __user *get_addr_ref_64(struct insn *insn, struct pt_regs *regs)
+{
+	return (void __user *)-1L;
+}
+#else
+static void __user *get_addr_ref_64(struct insn *insn, struct pt_regs *regs)
+{
+	unsigned long linear_addr = -1L, seg_base;
+	int regoff, ret;
+	long eff_addr;
+
+	if (insn->addr_bytes != 8)
+		goto out;
+
+	if (X86_MODRM_MOD(insn->modrm.value) == 3) {
+		ret = get_eff_addr_reg(insn, regs, &regoff, &eff_addr);
+		if (ret)
+			goto out;
+
+	} else {
+		if (insn->sib.nbytes) {
+			ret = get_eff_addr_sib(insn, regs, &regoff, &eff_addr);
+			if (ret)
+				goto out;
+		} else {
+			ret = get_eff_addr_modrm(insn, regs, &regoff, &eff_addr);
+			if (ret)
+				goto out;
+		}
+
+	}
+
+	ret = get_seg_base_limit(insn, regs, regoff, &seg_base, NULL);
+	if (ret)
+		goto out;
+
+	linear_addr = (unsigned long)eff_addr + seg_base;
+
+out:
+	return (void __user *)linear_addr;
+}
+#endif /* CONFIG_X86_64 */
+
+/**
+ * insn_get_addr_ref() - Obtain the linear address referred by instruction
+ * @insn:	Instruction structure containing ModRM byte and displacement
+ * @regs:	Structure with register values as seen when entering kernel mode
+ *
+ * Obtain the linear address referred by the instruction's ModRM, SIB and
+ * displacement bytes, and segment base, as applicable. In protected mode,
+ * segment limits are enforced.
+ *
+ * Returns:
+ *
+ * Linear address referenced by instruction and registers on success.
+ *
+ * -1L on error.
+ */
+void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs)
+{
+	if (!insn || !regs)
+		return (void __user *)-1L;
+
+	switch (insn->addr_bytes) {
+	case 2:
+		return get_addr_ref_16(insn, regs);
+	case 4:
+		return get_addr_ref_32(insn, regs);
+	case 8:
+		return get_addr_ref_64(insn, regs);
+	default:
+		return (void __user *)-1L;
+	}
+}
diff --git a/arch/x86/lib/kaslr.c b/arch/x86/lib/kaslr.c
index ab2d1d73e9e7..79778ab200e4 100644
--- a/arch/x86/lib/kaslr.c
+++ b/arch/x86/lib/kaslr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Entropy functions used on early boot for KASLR base and memory
  * randomization. The base randomization is done in the compressed
diff --git a/arch/x86/lib/memcpy_32.c b/arch/x86/lib/memcpy_32.c
index 2eab7d0bfedd..e565d1c9019e 100644
--- a/arch/x86/lib/memcpy_32.c
+++ b/arch/x86/lib/memcpy_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/export.h>
 
diff --git a/arch/x86/lib/memmove_64.S b/arch/x86/lib/memmove_64.S
index 15de86cd15b0..bbec69d8223b 100644
--- a/arch/x86/lib/memmove_64.S
+++ b/arch/x86/lib/memmove_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Normally compiler builtins are used, but sometimes the compiler calls out
  * of line code. Based on asm-i386/string.h.
diff --git a/arch/x86/lib/memset_64.S b/arch/x86/lib/memset_64.S
index 55b95db30a61..9bc861c71e75 100644
--- a/arch/x86/lib/memset_64.S
+++ b/arch/x86/lib/memset_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright 2002 Andi Kleen, SuSE Labs */
 
 #include <linux/linkage.h>
diff --git a/arch/x86/lib/misc.c b/arch/x86/lib/misc.c
index 76b373af03f0..a018ec4fba53 100644
--- a/arch/x86/lib/misc.c
+++ b/arch/x86/lib/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Count the digits of @val including a possible sign.
  *
diff --git a/arch/x86/lib/mmx_32.c b/arch/x86/lib/mmx_32.c
index c2311a678332..4321fa02e18d 100644
--- a/arch/x86/lib/mmx_32.c
+++ b/arch/x86/lib/mmx_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	MMX 3DNow! library helper functions
  *
diff --git a/arch/x86/lib/msr-reg-export.c b/arch/x86/lib/msr-reg-export.c
index ff29e8d39414..876b4168ab0a 100644
--- a/arch/x86/lib/msr-reg-export.c
+++ b/arch/x86/lib/msr-reg-export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <asm/msr.h>
 
diff --git a/arch/x86/lib/msr-reg.S b/arch/x86/lib/msr-reg.S
index 10ffa7e8519f..ed33cbab3958 100644
--- a/arch/x86/lib/msr-reg.S
+++ b/arch/x86/lib/msr-reg.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <linux/errno.h>
 #include <asm/asm.h>
diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c
index ce68b6a9d7d1..693cce0be82d 100644
--- a/arch/x86/lib/msr-smp.c
+++ b/arch/x86/lib/msr-smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/preempt.h>
 #include <linux/smp.h>
diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c
index 07764255b611..3bd905e10ee2 100644
--- a/arch/x86/lib/msr.c
+++ b/arch/x86/lib/msr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/percpu.h>
 #include <linux/preempt.h>
diff --git a/arch/x86/lib/putuser.S b/arch/x86/lib/putuser.S
index cd5d716d2897..96dce5fe2a35 100644
--- a/arch/x86/lib/putuser.S
+++ b/arch/x86/lib/putuser.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * __put_user functions.
  *
diff --git a/arch/x86/lib/rwsem.S b/arch/x86/lib/rwsem.S
index bf2c6074efd2..dc2ab6ea6768 100644
--- a/arch/x86/lib/rwsem.S
+++ b/arch/x86/lib/rwsem.S
@@ -98,6 +98,18 @@ ENTRY(call_rwsem_down_read_failed)
 	ret
 ENDPROC(call_rwsem_down_read_failed)
 
+ENTRY(call_rwsem_down_read_failed_killable)
+	FRAME_BEGIN
+	save_common_regs
+	__ASM_SIZE(push,) %__ASM_REG(dx)
+	movq %rax,%rdi
+	call rwsem_down_read_failed_killable
+	__ASM_SIZE(pop,) %__ASM_REG(dx)
+	restore_common_regs
+	FRAME_END
+	ret
+ENDPROC(call_rwsem_down_read_failed_killable)
+
 ENTRY(call_rwsem_down_write_failed)
 	FRAME_BEGIN
 	save_common_regs
diff --git a/arch/x86/lib/string_32.c b/arch/x86/lib/string_32.c
index dc0ad12f80bb..d15fdae9656e 100644
--- a/arch/x86/lib/string_32.c
+++ b/arch/x86/lib/string_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Most of the string-functions are rather heavily hand-optimized,
  * see especially strsep,strstr,str[c]spn. They should work, but are not
diff --git a/arch/x86/lib/strstr_32.c b/arch/x86/lib/strstr_32.c
index a03b1c750bfe..38f37df056f7 100644
--- a/arch/x86/lib/strstr_32.c
+++ b/arch/x86/lib/strstr_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/export.h>
 
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index bd057a4ffe6e..1b377f734e64 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * User address space access functions.
  * The non inlined parts of asm-i386/uaccess.h are here.
diff --git a/arch/x86/math-emu/Makefile b/arch/x86/math-emu/Makefile
index 1b2dac174321..02211fc6f2ec 100644
--- a/arch/x86/math-emu/Makefile
+++ b/arch/x86/math-emu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 #               Makefile for wm-FPU-emu
 #
diff --git a/arch/x86/math-emu/control_w.h b/arch/x86/math-emu/control_w.h
index ae2274dbd305..60f4dcc5edc3 100644
--- a/arch/x86/math-emu/control_w.h
+++ b/arch/x86/math-emu/control_w.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  control_w.h                                                              |
  |                                                                           |
diff --git a/arch/x86/math-emu/div_Xsig.S b/arch/x86/math-emu/div_Xsig.S
index 066996dba6a2..ee08449d20fd 100644
--- a/arch/x86/math-emu/div_Xsig.S
+++ b/arch/x86/math-emu/div_Xsig.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"div_Xsig.S"
 /*---------------------------------------------------------------------------+
  |  div_Xsig.S                                                               |
diff --git a/arch/x86/math-emu/div_small.S b/arch/x86/math-emu/div_small.S
index 2c71527bd917..8f5025c80ee0 100644
--- a/arch/x86/math-emu/div_small.S
+++ b/arch/x86/math-emu/div_small.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"div_small.S"
 /*---------------------------------------------------------------------------+
  |  div_small.S                                                              |
diff --git a/arch/x86/math-emu/errors.c b/arch/x86/math-emu/errors.c
index 2ccc424a57d9..6b468517ab71 100644
--- a/arch/x86/math-emu/errors.c
+++ b/arch/x86/math-emu/errors.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  errors.c                                                                 |
  |                                                                           |
diff --git a/arch/x86/math-emu/exception.h b/arch/x86/math-emu/exception.h
index 67f43a4683d5..75230b977577 100644
--- a/arch/x86/math-emu/exception.h
+++ b/arch/x86/math-emu/exception.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  exception.h                                                              |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_arith.c b/arch/x86/math-emu/fpu_arith.c
index aeab24e083c4..09006dc474a0 100644
--- a/arch/x86/math-emu/fpu_arith.c
+++ b/arch/x86/math-emu/fpu_arith.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  fpu_arith.c                                                              |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_asm.h b/arch/x86/math-emu/fpu_asm.h
index 955b932735a4..a83353d5271c 100644
--- a/arch/x86/math-emu/fpu_asm.h
+++ b/arch/x86/math-emu/fpu_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  fpu_asm.h                                                                |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c
index 024f6e971174..034748459482 100644
--- a/arch/x86/math-emu/fpu_aux.c
+++ b/arch/x86/math-emu/fpu_aux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  fpu_aux.c                                                                |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_emu.h b/arch/x86/math-emu/fpu_emu.h
index c9c320dccca1..a5a41ec58072 100644
--- a/arch/x86/math-emu/fpu_emu.h
+++ b/arch/x86/math-emu/fpu_emu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  fpu_emu.h                                                                |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index d4a7df2205b8..9e2ba7e667f6 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  fpu_entry.c                                                              |
  |                                                                           |
@@ -114,7 +115,7 @@ void math_emulate(struct math_emu_info *info)
 	struct desc_struct code_descriptor;
 	struct fpu *fpu = &current->thread.fpu;
 
-	fpu__activate_curr(fpu);
+	fpu__initialize(fpu);
 
 #ifdef RE_ENTRANT_CHECKING
 	if (emulating) {
diff --git a/arch/x86/math-emu/fpu_etc.c b/arch/x86/math-emu/fpu_etc.c
index 233e5af566f5..1b118fd93140 100644
--- a/arch/x86/math-emu/fpu_etc.c
+++ b/arch/x86/math-emu/fpu_etc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  fpu_etc.c                                                                |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_proto.h b/arch/x86/math-emu/fpu_proto.h
index caff438b9c1d..70d35c200945 100644
--- a/arch/x86/math-emu/fpu_proto.h
+++ b/arch/x86/math-emu/fpu_proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FPU_PROTO_H
 #define _FPU_PROTO_H
 
diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
index 699f329f1d40..c8b1b31ed7c4 100644
--- a/arch/x86/math-emu/fpu_system.h
+++ b/arch/x86/math-emu/fpu_system.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  fpu_system.h                                                             |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_tags.c b/arch/x86/math-emu/fpu_tags.c
index d9c657cd7746..bff95d4e7dca 100644
--- a/arch/x86/math-emu/fpu_tags.c
+++ b/arch/x86/math-emu/fpu_tags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  fpu_tags.c                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/fpu_trig.c b/arch/x86/math-emu/fpu_trig.c
index ecd06680581c..783c509f957a 100644
--- a/arch/x86/math-emu/fpu_trig.c
+++ b/arch/x86/math-emu/fpu_trig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  fpu_trig.c                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/get_address.c b/arch/x86/math-emu/get_address.c
index c48967c6a0e2..b82ca14ba718 100644
--- a/arch/x86/math-emu/get_address.c
+++ b/arch/x86/math-emu/get_address.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  get_address.c                                                            |
  |                                                                           |
diff --git a/arch/x86/math-emu/load_store.c b/arch/x86/math-emu/load_store.c
index 1643054766eb..f821a9cd7753 100644
--- a/arch/x86/math-emu/load_store.c
+++ b/arch/x86/math-emu/load_store.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  load_store.c                                                             |
  |                                                                           |
diff --git a/arch/x86/math-emu/mul_Xsig.S b/arch/x86/math-emu/mul_Xsig.S
index 22e0631bb85a..3e489122a2b0 100644
--- a/arch/x86/math-emu/mul_Xsig.S
+++ b/arch/x86/math-emu/mul_Xsig.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  mul_Xsig.S                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/poly.h b/arch/x86/math-emu/poly.h
index 168eb44c93c8..fc1c887ca073 100644
--- a/arch/x86/math-emu/poly.h
+++ b/arch/x86/math-emu/poly.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  poly.h                                                                   |
  |                                                                           |
diff --git a/arch/x86/math-emu/poly_2xm1.c b/arch/x86/math-emu/poly_2xm1.c
index b00e9e10cdce..aa33006bafd5 100644
--- a/arch/x86/math-emu/poly_2xm1.c
+++ b/arch/x86/math-emu/poly_2xm1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  poly_2xm1.c                                                              |
  |                                                                           |
diff --git a/arch/x86/math-emu/poly_atan.c b/arch/x86/math-emu/poly_atan.c
index 20c28e58e2d4..7e7412c5a1fe 100644
--- a/arch/x86/math-emu/poly_atan.c
+++ b/arch/x86/math-emu/poly_atan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  poly_atan.c                                                              |
  |                                                                           |
diff --git a/arch/x86/math-emu/poly_l2.c b/arch/x86/math-emu/poly_l2.c
index 8e2ff4b28a0a..98b6949bb854 100644
--- a/arch/x86/math-emu/poly_l2.c
+++ b/arch/x86/math-emu/poly_l2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  poly_l2.c                                                                |
  |                                                                           |
diff --git a/arch/x86/math-emu/poly_sin.c b/arch/x86/math-emu/poly_sin.c
index b862039c728e..c192fba51526 100644
--- a/arch/x86/math-emu/poly_sin.c
+++ b/arch/x86/math-emu/poly_sin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  poly_sin.c                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/poly_tan.c b/arch/x86/math-emu/poly_tan.c
index 1875763e0c02..1f5b1d712323 100644
--- a/arch/x86/math-emu/poly_tan.c
+++ b/arch/x86/math-emu/poly_tan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  poly_tan.c                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/polynom_Xsig.S b/arch/x86/math-emu/polynom_Xsig.S
index a9aaf414135d..604f0b2d17e8 100644
--- a/arch/x86/math-emu/polynom_Xsig.S
+++ b/arch/x86/math-emu/polynom_Xsig.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  polynomial_Xsig.S                                                        |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_add_sub.c b/arch/x86/math-emu/reg_add_sub.c
index deea48b9f13a..29451dd07556 100644
--- a/arch/x86/math-emu/reg_add_sub.c
+++ b/arch/x86/math-emu/reg_add_sub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_add_sub.c                                                            |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_compare.c b/arch/x86/math-emu/reg_compare.c
index 19b33b50adfa..eacb5128fc09 100644
--- a/arch/x86/math-emu/reg_compare.c
+++ b/arch/x86/math-emu/reg_compare.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_compare.c                                                            |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_constant.c b/arch/x86/math-emu/reg_constant.c
index 00548354912f..8dc9095bab22 100644
--- a/arch/x86/math-emu/reg_constant.c
+++ b/arch/x86/math-emu/reg_constant.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_constant.c                                                           |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_constant.h b/arch/x86/math-emu/reg_constant.h
index 1bffaec3a134..f2fdd344dcaa 100644
--- a/arch/x86/math-emu/reg_constant.h
+++ b/arch/x86/math-emu/reg_constant.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  reg_constant.h                                                           |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_convert.c b/arch/x86/math-emu/reg_convert.c
index 108060779977..251180623ce0 100644
--- a/arch/x86/math-emu/reg_convert.c
+++ b/arch/x86/math-emu/reg_convert.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_convert.c                                                            |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_divide.c b/arch/x86/math-emu/reg_divide.c
index 6827012db341..08c2f6de0288 100644
--- a/arch/x86/math-emu/reg_divide.c
+++ b/arch/x86/math-emu/reg_divide.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_divide.c                                                             |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_ld_str.c b/arch/x86/math-emu/reg_ld_str.c
index 2c98965a60ba..d40ff45497b9 100644
--- a/arch/x86/math-emu/reg_ld_str.c
+++ b/arch/x86/math-emu/reg_ld_str.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_ld_str.c                                                             |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_mul.c b/arch/x86/math-emu/reg_mul.c
index 36c37f71f713..d69618572f14 100644
--- a/arch/x86/math-emu/reg_mul.c
+++ b/arch/x86/math-emu/reg_mul.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*---------------------------------------------------------------------------+
  |  reg_mul.c                                                                |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_norm.S b/arch/x86/math-emu/reg_norm.S
index 53ac1a343c69..7f6b4392a15d 100644
--- a/arch/x86/math-emu/reg_norm.S
+++ b/arch/x86/math-emu/reg_norm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  reg_norm.S                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/reg_round.S b/arch/x86/math-emu/reg_round.S
index 41af5b208d88..04563421ee7d 100644
--- a/arch/x86/math-emu/reg_round.S
+++ b/arch/x86/math-emu/reg_round.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file "reg_round.S"
 /*---------------------------------------------------------------------------+
  |  reg_round.S                                                              |
diff --git a/arch/x86/math-emu/reg_u_add.S b/arch/x86/math-emu/reg_u_add.S
index 3b1bc5e9b2f6..50fe9f8c893c 100644
--- a/arch/x86/math-emu/reg_u_add.S
+++ b/arch/x86/math-emu/reg_u_add.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"reg_u_add.S"
 /*---------------------------------------------------------------------------+
  |  reg_u_add.S                                                              |
diff --git a/arch/x86/math-emu/reg_u_div.S b/arch/x86/math-emu/reg_u_div.S
index 796eb5ab921b..94d545e118e4 100644
--- a/arch/x86/math-emu/reg_u_div.S
+++ b/arch/x86/math-emu/reg_u_div.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"reg_u_div.S"
 /*---------------------------------------------------------------------------+
  |  reg_u_div.S                                                              |
diff --git a/arch/x86/math-emu/reg_u_mul.S b/arch/x86/math-emu/reg_u_mul.S
index 6196f68cf3c1..21cde47fb3e5 100644
--- a/arch/x86/math-emu/reg_u_mul.S
+++ b/arch/x86/math-emu/reg_u_mul.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"reg_u_mul.S"
 /*---------------------------------------------------------------------------+
  |  reg_u_mul.S                                                              |
diff --git a/arch/x86/math-emu/reg_u_sub.S b/arch/x86/math-emu/reg_u_sub.S
index d115b900919a..f05dea7dec38 100644
--- a/arch/x86/math-emu/reg_u_sub.S
+++ b/arch/x86/math-emu/reg_u_sub.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"reg_u_sub.S"
 /*---------------------------------------------------------------------------+
  |  reg_u_sub.S                                                              |
diff --git a/arch/x86/math-emu/round_Xsig.S b/arch/x86/math-emu/round_Xsig.S
index 87c99749a495..226a51e991f1 100644
--- a/arch/x86/math-emu/round_Xsig.S
+++ b/arch/x86/math-emu/round_Xsig.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  round_Xsig.S                                                             |
  |                                                                           |
diff --git a/arch/x86/math-emu/shr_Xsig.S b/arch/x86/math-emu/shr_Xsig.S
index c8552edeec75..96f4779aa9c1 100644
--- a/arch/x86/math-emu/shr_Xsig.S
+++ b/arch/x86/math-emu/shr_Xsig.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"shr_Xsig.S"
 /*---------------------------------------------------------------------------+
  |  shr_Xsig.S                                                               |
diff --git a/arch/x86/math-emu/status_w.h b/arch/x86/math-emu/status_w.h
index 54a3f226982d..b77bafec9526 100644
--- a/arch/x86/math-emu/status_w.h
+++ b/arch/x86/math-emu/status_w.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*---------------------------------------------------------------------------+
  |  status_w.h                                                               |
  |                                                                           |
diff --git a/arch/x86/math-emu/wm_shrx.S b/arch/x86/math-emu/wm_shrx.S
index 340dd6897f85..d588874eb6fb 100644
--- a/arch/x86/math-emu/wm_shrx.S
+++ b/arch/x86/math-emu/wm_shrx.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"wm_shrx.S"
 /*---------------------------------------------------------------------------+
  |  wm_shrx.S                                                                |
diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S
index 695afae38fdf..f031c0e19356 100644
--- a/arch/x86/math-emu/wm_sqrt.S
+++ b/arch/x86/math-emu/wm_sqrt.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.file	"wm_sqrt.S"
 /*---------------------------------------------------------------------------+
  |  wm_sqrt.S                                                                |
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 72bf8c01c6e3..7ba7f3d7f477 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -1,5 +1,13 @@
-# Kernel does not boot with instrumentation of tlb.c.
-KCOV_INSTRUMENT_tlb.o	:= n
+# SPDX-License-Identifier: GPL-2.0
+# Kernel does not boot with instrumentation of tlb.c and mem_encrypt.c
+KCOV_INSTRUMENT_tlb.o		:= n
+KCOV_INSTRUMENT_mem_encrypt.o	:= n
+
+KASAN_SANITIZE_mem_encrypt.o	:= n
+
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_mem_encrypt.o	= -pg
+endif
 
 obj-y	:=  init.o init_$(BITS).o fault.o ioremap.o extable.o pageattr.o mmap.o \
 	    pat.o pgtable.o physaddr.o setup_nx.o tlb.o
diff --git a/arch/x86/mm/amdtopology.c b/arch/x86/mm/amdtopology.c
index 91f501b2da3b..048c761d97b0 100644
--- a/arch/x86/mm/amdtopology.c
+++ b/arch/x86/mm/amdtopology.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AMD NUMA support.
  * Discover the memory map and associated nodes.
diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c
index c076f710de4c..3321b446b66c 100644
--- a/arch/x86/mm/extable.c
+++ b/arch/x86/mm/extable.c
@@ -2,6 +2,7 @@
 #include <linux/uaccess.h>
 #include <linux/sched/debug.h>
 
+#include <asm/fpu/internal.h>
 #include <asm/traps.h>
 #include <asm/kdebug.h>
 
@@ -66,18 +67,46 @@ bool ex_handler_refcount(const struct exception_table_entry *fixup,
 	 * wrapped around) will be set. Additionally, seeing the refcount
 	 * reach 0 will set ZF (Zero Flag: result was zero). In each of
 	 * these cases we want a report, since it's a boundary condition.
-	 *
+	 * The SF case is not reported since it indicates post-boundary
+	 * manipulations below zero or above INT_MAX. And if none of the
+	 * flags are set, something has gone very wrong, so report it.
 	 */
 	if (regs->flags & (X86_EFLAGS_OF | X86_EFLAGS_ZF)) {
 		bool zero = regs->flags & X86_EFLAGS_ZF;
 
 		refcount_error_report(regs, zero ? "hit zero" : "overflow");
+	} else if ((regs->flags & X86_EFLAGS_SF) == 0) {
+		/* Report if none of OF, ZF, nor SF are set. */
+		refcount_error_report(regs, "unexpected saturation");
 	}
 
 	return true;
 }
 EXPORT_SYMBOL_GPL(ex_handler_refcount);
 
+/*
+ * Handler for when we fail to restore a task's FPU state.  We should never get
+ * here because the FPU state of a task using the FPU (task->thread.fpu.state)
+ * should always be valid.  However, past bugs have allowed userspace to set
+ * reserved bits in the XSAVE area using PTRACE_SETREGSET or sys_rt_sigreturn().
+ * These caused XRSTOR to fail when switching to the task, leaking the FPU
+ * registers of the task previously executing on the CPU.  Mitigate this class
+ * of vulnerability by restoring from the initial state (essentially, zeroing
+ * out all the FPU registers) if we can't restore from the task's FPU state.
+ */
+bool ex_handler_fprestore(const struct exception_table_entry *fixup,
+			  struct pt_regs *regs, int trapnr)
+{
+	regs->ip = ex_fixup_addr(fixup);
+
+	WARN_ONCE(1, "Bad FPU state detected at %pB, reinitializing FPU registers.",
+		  (void *)instruction_pointer(regs));
+
+	__copy_kernel_to_fpregs(&init_fpstate, -1);
+	return true;
+}
+EXPORT_SYMBOL_GPL(ex_handler_fprestore);
+
 bool ex_handler_ext(const struct exception_table_entry *fixup,
 		   struct pt_regs *regs, int trapnr)
 {
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index b836a7274e12..3109ba6c6ede 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1995  Linus Torvalds
  *  Copyright (C) 2001, 2002 Andi Kleen, SuSE Labs.
@@ -29,26 +30,6 @@
 #include <asm/trace/exceptions.h>
 
 /*
- * Page fault error code bits:
- *
- *   bit 0 ==	 0: no page found	1: protection fault
- *   bit 1 ==	 0: read access		1: write access
- *   bit 2 ==	 0: kernel-mode access	1: user-mode access
- *   bit 3 ==				1: use of reserved bit detected
- *   bit 4 ==				1: fault was an instruction fetch
- *   bit 5 ==				1: protection keys block access
- */
-enum x86_pf_error_code {
-
-	PF_PROT		=		1 << 0,
-	PF_WRITE	=		1 << 1,
-	PF_USER		=		1 << 2,
-	PF_RSVD		=		1 << 3,
-	PF_INSTR	=		1 << 4,
-	PF_PK		=		1 << 5,
-};
-
-/*
  * Returns 0 if mmiotrace is disabled, or if the fault is not
  * handled by mmiotrace:
  */
@@ -149,7 +130,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
 	 * If it was a exec (instruction fetch) fault on NX page, then
 	 * do not ignore the fault:
 	 */
-	if (error_code & PF_INSTR)
+	if (error_code & X86_PF_INSTR)
 		return 0;
 
 	instr = (void *)convert_ip_to_linear(current, regs);
@@ -179,7 +160,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
  * siginfo so userspace can discover which protection key was set
  * on the PTE.
  *
- * If we get here, we know that the hardware signaled a PF_PK
+ * If we get here, we know that the hardware signaled a X86_PF_PK
  * fault and that there was a VMA once we got in the fault
  * handler.  It does *not* guarantee that the VMA we find here
  * was the one that we faulted on.
@@ -192,8 +173,7 @@ is_prefetch(struct pt_regs *regs, unsigned long error_code, unsigned long addr)
  * 6. T1   : reaches here, sees vma_pkey(vma)=5, when we really
  *	     faulted on a pte with its pkey=4.
  */
-static void fill_sig_info_pkey(int si_code, siginfo_t *info,
-		struct vm_area_struct *vma)
+static void fill_sig_info_pkey(int si_code, siginfo_t *info, u32 *pkey)
 {
 	/* This is effectively an #ifdef */
 	if (!boot_cpu_has(X86_FEATURE_OSPKE))
@@ -205,11 +185,11 @@ static void fill_sig_info_pkey(int si_code, siginfo_t *info,
 	/*
 	 * force_sig_info_fault() is called from a number of
 	 * contexts, some of which have a VMA and some of which
-	 * do not.  The PF_PK handing happens after we have a
+	 * do not.  The X86_PF_PK handing happens after we have a
 	 * valid VMA, so we should never reach this without a
 	 * valid VMA.
 	 */
-	if (!vma) {
+	if (!pkey) {
 		WARN_ONCE(1, "PKU fault with no VMA passed in");
 		info->si_pkey = 0;
 		return;
@@ -219,13 +199,12 @@ static void fill_sig_info_pkey(int si_code, siginfo_t *info,
 	 * absolutely guranteed to be 100% accurate because of
 	 * the race explained above.
 	 */
-	info->si_pkey = vma_pkey(vma);
+	info->si_pkey = *pkey;
 }
 
 static void
 force_sig_info_fault(int si_signo, int si_code, unsigned long address,
-		     struct task_struct *tsk, struct vm_area_struct *vma,
-		     int fault)
+		     struct task_struct *tsk, u32 *pkey, int fault)
 {
 	unsigned lsb = 0;
 	siginfo_t info;
@@ -240,7 +219,7 @@ force_sig_info_fault(int si_signo, int si_code, unsigned long address,
 		lsb = PAGE_SHIFT;
 	info.si_addr_lsb = lsb;
 
-	fill_sig_info_pkey(si_code, &info, vma);
+	fill_sig_info_pkey(si_code, &info, pkey);
 
 	force_sig_info(si_signo, &info, tsk);
 }
@@ -699,7 +678,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 	if (!oops_may_print())
 		return;
 
-	if (error_code & PF_INSTR) {
+	if (error_code & X86_PF_INSTR) {
 		unsigned int level;
 		pgd_t *pgd;
 		pte_t *pte;
@@ -762,8 +741,6 @@ no_context(struct pt_regs *regs, unsigned long error_code,
 	struct task_struct *tsk = current;
 	unsigned long flags;
 	int sig;
-	/* No context means no VMA to pass down */
-	struct vm_area_struct *vma = NULL;
 
 	/* Are we prepared to handle this kernel fault? */
 	if (fixup_exception(regs, X86_TRAP_PF)) {
@@ -783,12 +760,12 @@ no_context(struct pt_regs *regs, unsigned long error_code,
 		 */
 		if (current->thread.sig_on_uaccess_err && signal) {
 			tsk->thread.trap_nr = X86_TRAP_PF;
-			tsk->thread.error_code = error_code | PF_USER;
+			tsk->thread.error_code = error_code | X86_PF_USER;
 			tsk->thread.cr2 = address;
 
 			/* XXX: hwpoison faults will set the wrong code. */
 			force_sig_info_fault(signal, si_code, address,
-					     tsk, vma, 0);
+					     tsk, NULL, 0);
 		}
 
 		/*
@@ -806,7 +783,6 @@ no_context(struct pt_regs *regs, unsigned long error_code,
 	if (is_vmalloc_addr((void *)address) &&
 	    (((unsigned long)tsk->stack - 1 - address < PAGE_SIZE) ||
 	     address - ((unsigned long)tsk->stack + THREAD_SIZE) < PAGE_SIZE)) {
-		register void *__sp asm("rsp");
 		unsigned long stack = this_cpu_read(orig_ist.ist[DOUBLEFAULT_STACK]) - sizeof(void *);
 		/*
 		 * We're likely to be running with very little stack space
@@ -821,7 +797,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
 		asm volatile ("movq %[stack], %%rsp\n\t"
 			      "call handle_stack_overflow\n\t"
 			      "1: jmp 1b"
-			      : "+r" (__sp)
+			      : ASM_CALL_CONSTRAINT
 			      : "D" ("kernel stack overflow (page fault)"),
 				"S" (regs), "d" (address),
 				[stack] "rm" (stack));
@@ -897,13 +873,12 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code,
 
 static void
 __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
-		       unsigned long address, struct vm_area_struct *vma,
-		       int si_code)
+		       unsigned long address, u32 *pkey, int si_code)
 {
 	struct task_struct *tsk = current;
 
 	/* User mode accesses just cause a SIGSEGV */
-	if (error_code & PF_USER) {
+	if (error_code & X86_PF_USER) {
 		/*
 		 * It's possible to have interrupts off here:
 		 */
@@ -924,7 +899,7 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
 		 * Instruction fetch faults in the vsyscall page might need
 		 * emulation.
 		 */
-		if (unlikely((error_code & PF_INSTR) &&
+		if (unlikely((error_code & X86_PF_INSTR) &&
 			     ((address & ~0xfff) == VSYSCALL_ADDR))) {
 			if (emulate_vsyscall(regs, address))
 				return;
@@ -937,7 +912,7 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
 		 * are always protection faults.
 		 */
 		if (address >= TASK_SIZE_MAX)
-			error_code |= PF_PROT;
+			error_code |= X86_PF_PROT;
 
 		if (likely(show_unhandled_signals))
 			show_signal_msg(regs, error_code, address, tsk);
@@ -946,7 +921,7 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
 		tsk->thread.error_code	= error_code;
 		tsk->thread.trap_nr	= X86_TRAP_PF;
 
-		force_sig_info_fault(SIGSEGV, si_code, address, tsk, vma, 0);
+		force_sig_info_fault(SIGSEGV, si_code, address, tsk, pkey, 0);
 
 		return;
 	}
@@ -959,9 +934,9 @@ __bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
 
 static noinline void
 bad_area_nosemaphore(struct pt_regs *regs, unsigned long error_code,
-		     unsigned long address, struct vm_area_struct *vma)
+		     unsigned long address, u32 *pkey)
 {
-	__bad_area_nosemaphore(regs, error_code, address, vma, SEGV_MAPERR);
+	__bad_area_nosemaphore(regs, error_code, address, pkey, SEGV_MAPERR);
 }
 
 static void
@@ -969,6 +944,10 @@ __bad_area(struct pt_regs *regs, unsigned long error_code,
 	   unsigned long address,  struct vm_area_struct *vma, int si_code)
 {
 	struct mm_struct *mm = current->mm;
+	u32 pkey;
+
+	if (vma)
+		pkey = vma_pkey(vma);
 
 	/*
 	 * Something tried to access memory that isn't in our memory map..
@@ -976,7 +955,8 @@ __bad_area(struct pt_regs *regs, unsigned long error_code,
 	 */
 	up_read(&mm->mmap_sem);
 
-	__bad_area_nosemaphore(regs, error_code, address, vma, si_code);
+	__bad_area_nosemaphore(regs, error_code, address,
+			       (vma) ? &pkey : NULL, si_code);
 }
 
 static noinline void
@@ -993,11 +973,11 @@ static inline bool bad_area_access_from_pkeys(unsigned long error_code,
 
 	if (!boot_cpu_has(X86_FEATURE_OSPKE))
 		return false;
-	if (error_code & PF_PK)
+	if (error_code & X86_PF_PK)
 		return true;
 	/* this checks permission keys on the VMA: */
-	if (!arch_vma_access_permitted(vma, (error_code & PF_WRITE),
-				(error_code & PF_INSTR), foreign))
+	if (!arch_vma_access_permitted(vma, (error_code & X86_PF_WRITE),
+				       (error_code & X86_PF_INSTR), foreign))
 		return true;
 	return false;
 }
@@ -1019,13 +999,13 @@ bad_area_access_error(struct pt_regs *regs, unsigned long error_code,
 
 static void
 do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
-	  struct vm_area_struct *vma, unsigned int fault)
+	  u32 *pkey, unsigned int fault)
 {
 	struct task_struct *tsk = current;
 	int code = BUS_ADRERR;
 
 	/* Kernel mode? Handle exceptions or die: */
-	if (!(error_code & PF_USER)) {
+	if (!(error_code & X86_PF_USER)) {
 		no_context(regs, error_code, address, SIGBUS, BUS_ADRERR);
 		return;
 	}
@@ -1046,22 +1026,21 @@ do_sigbus(struct pt_regs *regs, unsigned long error_code, unsigned long address,
 		code = BUS_MCEERR_AR;
 	}
 #endif
-	force_sig_info_fault(SIGBUS, code, address, tsk, vma, fault);
+	force_sig_info_fault(SIGBUS, code, address, tsk, pkey, fault);
 }
 
 static noinline void
 mm_fault_error(struct pt_regs *regs, unsigned long error_code,
-	       unsigned long address, struct vm_area_struct *vma,
-	       unsigned int fault)
+	       unsigned long address, u32 *pkey, unsigned int fault)
 {
-	if (fatal_signal_pending(current) && !(error_code & PF_USER)) {
+	if (fatal_signal_pending(current) && !(error_code & X86_PF_USER)) {
 		no_context(regs, error_code, address, 0, 0);
 		return;
 	}
 
 	if (fault & VM_FAULT_OOM) {
 		/* Kernel mode? Handle exceptions or die: */
-		if (!(error_code & PF_USER)) {
+		if (!(error_code & X86_PF_USER)) {
 			no_context(regs, error_code, address,
 				   SIGSEGV, SEGV_MAPERR);
 			return;
@@ -1076,9 +1055,9 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
 	} else {
 		if (fault & (VM_FAULT_SIGBUS|VM_FAULT_HWPOISON|
 			     VM_FAULT_HWPOISON_LARGE))
-			do_sigbus(regs, error_code, address, vma, fault);
+			do_sigbus(regs, error_code, address, pkey, fault);
 		else if (fault & VM_FAULT_SIGSEGV)
-			bad_area_nosemaphore(regs, error_code, address, vma);
+			bad_area_nosemaphore(regs, error_code, address, pkey);
 		else
 			BUG();
 	}
@@ -1086,16 +1065,16 @@ mm_fault_error(struct pt_regs *regs, unsigned long error_code,
 
 static int spurious_fault_check(unsigned long error_code, pte_t *pte)
 {
-	if ((error_code & PF_WRITE) && !pte_write(*pte))
+	if ((error_code & X86_PF_WRITE) && !pte_write(*pte))
 		return 0;
 
-	if ((error_code & PF_INSTR) && !pte_exec(*pte))
+	if ((error_code & X86_PF_INSTR) && !pte_exec(*pte))
 		return 0;
 	/*
 	 * Note: We do not do lazy flushing on protection key
-	 * changes, so no spurious fault will ever set PF_PK.
+	 * changes, so no spurious fault will ever set X86_PF_PK.
 	 */
-	if ((error_code & PF_PK))
+	if ((error_code & X86_PF_PK))
 		return 1;
 
 	return 1;
@@ -1141,8 +1120,8 @@ spurious_fault(unsigned long error_code, unsigned long address)
 	 * change, so user accesses are not expected to cause spurious
 	 * faults.
 	 */
-	if (error_code != (PF_WRITE | PF_PROT)
-	    && error_code != (PF_INSTR | PF_PROT))
+	if (error_code != (X86_PF_WRITE | X86_PF_PROT) &&
+	    error_code != (X86_PF_INSTR | X86_PF_PROT))
 		return 0;
 
 	pgd = init_mm.pgd + pgd_index(address);
@@ -1202,19 +1181,19 @@ access_error(unsigned long error_code, struct vm_area_struct *vma)
 	 * always an unconditional error and can never result in
 	 * a follow-up action to resolve the fault, like a COW.
 	 */
-	if (error_code & PF_PK)
+	if (error_code & X86_PF_PK)
 		return 1;
 
 	/*
 	 * Make sure to check the VMA so that we do not perform
-	 * faults just to hit a PF_PK as soon as we fill in a
+	 * faults just to hit a X86_PF_PK as soon as we fill in a
 	 * page.
 	 */
-	if (!arch_vma_access_permitted(vma, (error_code & PF_WRITE),
-				(error_code & PF_INSTR), foreign))
+	if (!arch_vma_access_permitted(vma, (error_code & X86_PF_WRITE),
+				       (error_code & X86_PF_INSTR), foreign))
 		return 1;
 
-	if (error_code & PF_WRITE) {
+	if (error_code & X86_PF_WRITE) {
 		/* write, present and write, not present: */
 		if (unlikely(!(vma->vm_flags & VM_WRITE)))
 			return 1;
@@ -1222,7 +1201,7 @@ access_error(unsigned long error_code, struct vm_area_struct *vma)
 	}
 
 	/* read, present: */
-	if (unlikely(error_code & PF_PROT))
+	if (unlikely(error_code & X86_PF_PROT))
 		return 1;
 
 	/* read, not present: */
@@ -1245,7 +1224,7 @@ static inline bool smap_violation(int error_code, struct pt_regs *regs)
 	if (!static_cpu_has(X86_FEATURE_SMAP))
 		return false;
 
-	if (error_code & PF_USER)
+	if (error_code & X86_PF_USER)
 		return false;
 
 	if (!user_mode(regs) && (regs->flags & X86_EFLAGS_AC))
@@ -1268,6 +1247,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	struct mm_struct *mm;
 	int fault, major = 0;
 	unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE;
+	u32 pkey;
 
 	tsk = current;
 	mm = tsk->mm;
@@ -1297,7 +1277,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 * protection error (error_code & 9) == 0.
 	 */
 	if (unlikely(fault_in_kernel_space(address))) {
-		if (!(error_code & (PF_RSVD | PF_USER | PF_PROT))) {
+		if (!(error_code & (X86_PF_RSVD | X86_PF_USER | X86_PF_PROT))) {
 			if (vmalloc_fault(address) >= 0)
 				return;
 
@@ -1325,7 +1305,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	if (unlikely(kprobes_fault(regs)))
 		return;
 
-	if (unlikely(error_code & PF_RSVD))
+	if (unlikely(error_code & X86_PF_RSVD))
 		pgtable_bad(regs, error_code, address);
 
 	if (unlikely(smap_violation(error_code, regs))) {
@@ -1351,7 +1331,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 */
 	if (user_mode(regs)) {
 		local_irq_enable();
-		error_code |= PF_USER;
+		error_code |= X86_PF_USER;
 		flags |= FAULT_FLAG_USER;
 	} else {
 		if (regs->flags & X86_EFLAGS_IF)
@@ -1360,9 +1340,9 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 
 	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
 
-	if (error_code & PF_WRITE)
+	if (error_code & X86_PF_WRITE)
 		flags |= FAULT_FLAG_WRITE;
-	if (error_code & PF_INSTR)
+	if (error_code & X86_PF_INSTR)
 		flags |= FAULT_FLAG_INSTRUCTION;
 
 	/*
@@ -1382,7 +1362,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code,
 	 * space check, thus avoiding the deadlock:
 	 */
 	if (unlikely(!down_read_trylock(&mm->mmap_sem))) {
-		if ((error_code & PF_USER) == 0 &&
+		if (!(error_code & X86_PF_USER) &&
 		    !search_exception_tables(regs->ip)) {
 			bad_area_nosemaphore(regs, error_code, address, NULL);
 			return;
@@ -1409,7 +1389,7 @@ retry:
 		bad_area(regs, error_code, address);
 		return;
 	}
-	if (error_code & PF_USER) {
+	if (error_code & X86_PF_USER) {
 		/*
 		 * Accessing the stack below %sp is always a bug.
 		 * The large cushion allows instructions like enter
@@ -1441,7 +1421,17 @@ good_area:
 	 * make sure we exit gracefully rather than endlessly redo
 	 * the fault.  Since we never set FAULT_FLAG_RETRY_NOWAIT, if
 	 * we get VM_FAULT_RETRY back, the mmap_sem has been unlocked.
+	 *
+	 * Note that handle_userfault() may also release and reacquire mmap_sem
+	 * (and not return with VM_FAULT_RETRY), when returning to userland to
+	 * repeat the page fault later with a VM_FAULT_NOPAGE retval
+	 * (potentially after handling any pending signal during the return to
+	 * userland). The return to userland is identified whenever
+	 * FAULT_FLAG_USER|FAULT_FLAG_KILLABLE are both set in flags.
+	 * Thus we have to be careful about not touching vma after handling the
+	 * fault, so we read the pkey beforehand.
 	 */
+	pkey = vma_pkey(vma);
 	fault = handle_mm_fault(vma, address, flags);
 	major |= fault & VM_FAULT_MAJOR;
 
@@ -1470,7 +1460,7 @@ good_area:
 
 	up_read(&mm->mmap_sem);
 	if (unlikely(fault & VM_FAULT_ERROR)) {
-		mm_fault_error(regs, error_code, address, vma, fault);
+		mm_fault_error(regs, error_code, address, &pkey, fault);
 		return;
 	}
 
diff --git a/arch/x86/mm/hugetlbpage.c b/arch/x86/mm/hugetlbpage.c
index 6d06cf33e3de..8ae0000cbdb3 100644
--- a/arch/x86/mm/hugetlbpage.c
+++ b/arch/x86/mm/hugetlbpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IA-32 Huge TLB Page Support for Kernel.
  *
diff --git a/arch/x86/mm/ident_map.c b/arch/x86/mm/ident_map.c
index 31cea988fa36..ab33a32df2a8 100644
--- a/arch/x86/mm/ident_map.c
+++ b/arch/x86/mm/ident_map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Helper routines for building identity mapping page tables. This is
  * included by both the compressed kernel and the regular kernel.
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 7777ccc0e9f9..a22c2b95e513 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -19,6 +19,7 @@
 #include <asm/microcode.h>
 #include <asm/kaslr.h>
 #include <asm/hypervisor.h>
+#include <asm/cpufeature.h>
 
 /*
  * We need to define the tracepoints somewhere, and tlb.c
@@ -193,6 +194,38 @@ static void __init probe_page_size_mask(void)
 	}
 }
 
+static void setup_pcid(void)
+{
+#ifdef CONFIG_X86_64
+	if (boot_cpu_has(X86_FEATURE_PCID)) {
+		if (boot_cpu_has(X86_FEATURE_PGE)) {
+			/*
+			 * This can't be cr4_set_bits_and_update_boot() --
+			 * the trampoline code can't handle CR4.PCIDE and
+			 * it wouldn't do any good anyway.  Despite the name,
+			 * cr4_set_bits_and_update_boot() doesn't actually
+			 * cause the bits in question to remain set all the
+			 * way through the secondary boot asm.
+			 *
+			 * Instead, we brute-force it and set CR4.PCIDE
+			 * manually in start_secondary().
+			 */
+			cr4_set_bits(X86_CR4_PCIDE);
+		} else {
+			/*
+			 * flush_tlb_all(), as currently implemented, won't
+			 * work if PCID is on but PGE is not.  Since that
+			 * combination doesn't exist on real hardware, there's
+			 * no reason to try to fully support it, but it's
+			 * polite to avoid corrupting data if we're on
+			 * an improperly configured VM.
+			 */
+			setup_clear_cpu_cap(X86_FEATURE_PCID);
+		}
+	}
+#endif
+}
+
 #ifdef CONFIG_X86_32
 #define NR_RANGE_MR 3
 #else /* CONFIG_X86_64 */
@@ -592,6 +625,7 @@ void __init init_mem_mapping(void)
 	unsigned long end;
 
 	probe_page_size_mask();
+	setup_pcid();
 
 #ifdef CONFIG_X86_64
 	end = max_pfn << PAGE_SHIFT;
@@ -637,7 +671,7 @@ void __init init_mem_mapping(void)
 	load_cr3(swapper_pg_dir);
 	__flush_tlb_all();
 
-	hypervisor_init_mem_mapping();
+	x86_init.hyper.init_mem_mapping();
 
 	early_memtest(0, max_pfn_mapped << PAGE_SHIFT);
 }
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index 048fbe8fc274..adcea90a2046 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -1426,16 +1426,16 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
 
 #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_HAVE_BOOTMEM_INFO_NODE)
 void register_page_bootmem_memmap(unsigned long section_nr,
-				  struct page *start_page, unsigned long size)
+				  struct page *start_page, unsigned long nr_pages)
 {
 	unsigned long addr = (unsigned long)start_page;
-	unsigned long end = (unsigned long)(start_page + size);
+	unsigned long end = (unsigned long)(start_page + nr_pages);
 	unsigned long next;
 	pgd_t *pgd;
 	p4d_t *p4d;
 	pud_t *pud;
 	pmd_t *pmd;
-	unsigned int nr_pages;
+	unsigned int nr_pmd_pages;
 	struct page *page;
 
 	for (; addr < end; addr = next) {
@@ -1482,9 +1482,9 @@ void register_page_bootmem_memmap(unsigned long section_nr,
 			if (pmd_none(*pmd))
 				continue;
 
-			nr_pages = 1 << (get_order(PMD_SIZE));
+			nr_pmd_pages = 1 << get_order(PMD_SIZE);
 			page = pmd_page(*pmd);
-			while (nr_pages--)
+			while (nr_pmd_pages--)
 				get_page_bootmem(section_nr, page++,
 						 SECTION_INFO);
 		}
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 34f0e1847dd6..6e4573b1da34 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -27,6 +27,11 @@
 
 #include "physaddr.h"
 
+struct ioremap_mem_flags {
+	bool system_ram;
+	bool desc_other;
+};
+
 /*
  * Fix up the linear direct mapping of the kernel to avoid cache attribute
  * conflicts.
@@ -56,17 +61,59 @@ int ioremap_change_attr(unsigned long vaddr, unsigned long size,
 	return err;
 }
 
-static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
-			       void *arg)
+static bool __ioremap_check_ram(struct resource *res)
 {
+	unsigned long start_pfn, stop_pfn;
 	unsigned long i;
 
-	for (i = 0; i < nr_pages; ++i)
-		if (pfn_valid(start_pfn + i) &&
-		    !PageReserved(pfn_to_page(start_pfn + i)))
-			return 1;
+	if ((res->flags & IORESOURCE_SYSTEM_RAM) != IORESOURCE_SYSTEM_RAM)
+		return false;
 
-	return 0;
+	start_pfn = (res->start + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	stop_pfn = (res->end + 1) >> PAGE_SHIFT;
+	if (stop_pfn > start_pfn) {
+		for (i = 0; i < (stop_pfn - start_pfn); ++i)
+			if (pfn_valid(start_pfn + i) &&
+			    !PageReserved(pfn_to_page(start_pfn + i)))
+				return true;
+	}
+
+	return false;
+}
+
+static int __ioremap_check_desc_other(struct resource *res)
+{
+	return (res->desc != IORES_DESC_NONE);
+}
+
+static int __ioremap_res_check(struct resource *res, void *arg)
+{
+	struct ioremap_mem_flags *flags = arg;
+
+	if (!flags->system_ram)
+		flags->system_ram = __ioremap_check_ram(res);
+
+	if (!flags->desc_other)
+		flags->desc_other = __ioremap_check_desc_other(res);
+
+	return flags->system_ram && flags->desc_other;
+}
+
+/*
+ * To avoid multiple resource walks, this function walks resources marked as
+ * IORESOURCE_MEM and IORESOURCE_BUSY and looking for system RAM and/or a
+ * resource described not as IORES_DESC_NONE (e.g. IORES_DESC_ACPI_TABLES).
+ */
+static void __ioremap_check_mem(resource_size_t addr, unsigned long size,
+				struct ioremap_mem_flags *flags)
+{
+	u64 start, end;
+
+	start = (u64)addr;
+	end = start + size - 1;
+	memset(flags, 0, sizeof(*flags));
+
+	walk_mem_res(start, end, flags, __ioremap_res_check);
 }
 
 /*
@@ -87,9 +134,10 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 		unsigned long size, enum page_cache_mode pcm, void *caller)
 {
 	unsigned long offset, vaddr;
-	resource_size_t pfn, last_pfn, last_addr;
+	resource_size_t last_addr;
 	const resource_size_t unaligned_phys_addr = phys_addr;
 	const unsigned long unaligned_size = size;
+	struct ioremap_mem_flags mem_flags;
 	struct vm_struct *area;
 	enum page_cache_mode new_pcm;
 	pgprot_t prot;
@@ -108,13 +156,12 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 		return NULL;
 	}
 
+	__ioremap_check_mem(phys_addr, size, &mem_flags);
+
 	/*
 	 * Don't allow anybody to remap normal RAM that we're using..
 	 */
-	pfn      = phys_addr >> PAGE_SHIFT;
-	last_pfn = last_addr >> PAGE_SHIFT;
-	if (walk_system_ram_range(pfn, last_pfn - pfn + 1, NULL,
-					  __ioremap_check_ram) == 1) {
+	if (mem_flags.system_ram) {
 		WARN_ONCE(1, "ioremap on RAM at %pa - %pa\n",
 			  &phys_addr, &last_addr);
 		return NULL;
@@ -146,7 +193,15 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
 		pcm = new_pcm;
 	}
 
+	/*
+	 * If the page being mapped is in memory and SEV is active then
+	 * make sure the memory encryption attribute is enabled in the
+	 * resulting mapping.
+	 */
 	prot = PAGE_KERNEL_IO;
+	if (sev_active() && mem_flags.desc_other)
+		prot = pgprot_encrypted(prot);
+
 	switch (pcm) {
 	case _PAGE_CACHE_MODE_UC:
 	default:
@@ -422,6 +477,9 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr)
  * areas should be mapped decrypted. And since the encryption key can
  * change across reboots, persistent memory should also be mapped
  * decrypted.
+ *
+ * If SEV is active, that implies that BIOS/UEFI also ran encrypted so
+ * only persistent memory should be mapped decrypted.
  */
 static bool memremap_should_map_decrypted(resource_size_t phys_addr,
 					  unsigned long size)
@@ -458,6 +516,11 @@ static bool memremap_should_map_decrypted(resource_size_t phys_addr,
 	case E820_TYPE_ACPI:
 	case E820_TYPE_NVS:
 	case E820_TYPE_UNUSABLE:
+		/* For SEV, these areas are encrypted */
+		if (sev_active())
+			break;
+		/* Fallthrough */
+
 	case E820_TYPE_PRAM:
 		return true;
 	default:
@@ -581,7 +644,7 @@ static bool __init early_memremap_is_setup_data(resource_size_t phys_addr,
 bool arch_memremap_can_ram_remap(resource_size_t phys_addr, unsigned long size,
 				 unsigned long flags)
 {
-	if (!sme_active())
+	if (!mem_encrypt_active())
 		return true;
 
 	if (flags & MEMREMAP_ENC)
@@ -590,12 +653,13 @@ bool arch_memremap_can_ram_remap(resource_size_t phys_addr, unsigned long size,
 	if (flags & MEMREMAP_DEC)
 		return false;
 
-	if (memremap_is_setup_data(phys_addr, size) ||
-	    memremap_is_efi_data(phys_addr, size) ||
-	    memremap_should_map_decrypted(phys_addr, size))
-		return false;
+	if (sme_active()) {
+		if (memremap_is_setup_data(phys_addr, size) ||
+		    memremap_is_efi_data(phys_addr, size))
+			return false;
+	}
 
-	return true;
+	return !memremap_should_map_decrypted(phys_addr, size);
 }
 
 /*
@@ -608,17 +672,24 @@ pgprot_t __init early_memremap_pgprot_adjust(resource_size_t phys_addr,
 					     unsigned long size,
 					     pgprot_t prot)
 {
-	if (!sme_active())
+	bool encrypted_prot;
+
+	if (!mem_encrypt_active())
 		return prot;
 
-	if (early_memremap_is_setup_data(phys_addr, size) ||
-	    memremap_is_efi_data(phys_addr, size) ||
-	    memremap_should_map_decrypted(phys_addr, size))
-		prot = pgprot_decrypted(prot);
-	else
-		prot = pgprot_encrypted(prot);
+	encrypted_prot = true;
+
+	if (sme_active()) {
+		if (early_memremap_is_setup_data(phys_addr, size) ||
+		    memremap_is_efi_data(phys_addr, size))
+			encrypted_prot = false;
+	}
+
+	if (encrypted_prot && memremap_should_map_decrypted(phys_addr, size))
+		encrypted_prot = false;
 
-	return prot;
+	return encrypted_prot ? pgprot_encrypted(prot)
+			      : pgprot_decrypted(prot);
 }
 
 bool phys_mem_access_encrypted(unsigned long phys_addr, unsigned long size)
diff --git a/arch/x86/mm/kasan_init_64.c b/arch/x86/mm/kasan_init_64.c
index bc84b73684b7..2b60dc6e64b1 100644
--- a/arch/x86/mm/kasan_init_64.c
+++ b/arch/x86/mm/kasan_init_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define DISABLE_BRANCH_PROFILING
 #define pr_fmt(fmt) "kasan: " fmt
 #include <linux/bootmem.h>
@@ -15,6 +16,8 @@
 
 extern struct range pfn_mapped[E820_MAX_ENTRIES];
 
+static p4d_t tmp_p4d_table[PTRS_PER_P4D] __initdata __aligned(PAGE_SIZE);
+
 static int __init map_range(struct range *range)
 {
 	unsigned long start;
@@ -30,8 +33,10 @@ static void __init clear_pgds(unsigned long start,
 			unsigned long end)
 {
 	pgd_t *pgd;
+	/* See comment in kasan_init() */
+	unsigned long pgd_end = end & PGDIR_MASK;
 
-	for (; start < end; start += PGDIR_SIZE) {
+	for (; start < pgd_end; start += PGDIR_SIZE) {
 		pgd = pgd_offset_k(start);
 		/*
 		 * With folded p4d, pgd_clear() is nop, use p4d_clear()
@@ -42,29 +47,61 @@ static void __init clear_pgds(unsigned long start,
 		else
 			pgd_clear(pgd);
 	}
+
+	pgd = pgd_offset_k(start);
+	for (; start < end; start += P4D_SIZE)
+		p4d_clear(p4d_offset(pgd, start));
+}
+
+static inline p4d_t *early_p4d_offset(pgd_t *pgd, unsigned long addr)
+{
+	unsigned long p4d;
+
+	if (!IS_ENABLED(CONFIG_X86_5LEVEL))
+		return (p4d_t *)pgd;
+
+	p4d = __pa_nodebug(pgd_val(*pgd)) & PTE_PFN_MASK;
+	p4d += __START_KERNEL_map - phys_base;
+	return (p4d_t *)p4d + p4d_index(addr);
+}
+
+static void __init kasan_early_p4d_populate(pgd_t *pgd,
+		unsigned long addr,
+		unsigned long end)
+{
+	pgd_t pgd_entry;
+	p4d_t *p4d, p4d_entry;
+	unsigned long next;
+
+	if (pgd_none(*pgd)) {
+		pgd_entry = __pgd(_KERNPG_TABLE | __pa_nodebug(kasan_zero_p4d));
+		set_pgd(pgd, pgd_entry);
+	}
+
+	p4d = early_p4d_offset(pgd, addr);
+	do {
+		next = p4d_addr_end(addr, end);
+
+		if (!p4d_none(*p4d))
+			continue;
+
+		p4d_entry = __p4d(_KERNPG_TABLE | __pa_nodebug(kasan_zero_pud));
+		set_p4d(p4d, p4d_entry);
+	} while (p4d++, addr = next, addr != end && p4d_none(*p4d));
 }
 
 static void __init kasan_map_early_shadow(pgd_t *pgd)
 {
-	int i;
-	unsigned long start = KASAN_SHADOW_START;
+	/* See comment in kasan_init() */
+	unsigned long addr = KASAN_SHADOW_START & PGDIR_MASK;
 	unsigned long end = KASAN_SHADOW_END;
+	unsigned long next;
 
-	for (i = pgd_index(start); start < end; i++) {
-		switch (CONFIG_PGTABLE_LEVELS) {
-		case 4:
-			pgd[i] = __pgd(__pa_nodebug(kasan_zero_pud) |
-					_KERNPG_TABLE);
-			break;
-		case 5:
-			pgd[i] = __pgd(__pa_nodebug(kasan_zero_p4d) |
-					_KERNPG_TABLE);
-			break;
-		default:
-			BUILD_BUG();
-		}
-		start += PGDIR_SIZE;
-	}
+	pgd += pgd_index(addr);
+	do {
+		next = pgd_addr_end(addr, end);
+		kasan_early_p4d_populate(pgd, addr, next);
+	} while (pgd++, addr = next, addr != end);
 }
 
 #ifdef CONFIG_KASAN_INLINE
@@ -101,7 +138,7 @@ void __init kasan_early_init(void)
 	for (i = 0; i < PTRS_PER_PUD; i++)
 		kasan_zero_pud[i] = __pud(pud_val);
 
-	for (i = 0; CONFIG_PGTABLE_LEVELS >= 5 && i < PTRS_PER_P4D; i++)
+	for (i = 0; IS_ENABLED(CONFIG_X86_5LEVEL) && i < PTRS_PER_P4D; i++)
 		kasan_zero_p4d[i] = __p4d(p4d_val);
 
 	kasan_map_early_shadow(early_top_pgt);
@@ -117,12 +154,35 @@ void __init kasan_init(void)
 #endif
 
 	memcpy(early_top_pgt, init_top_pgt, sizeof(early_top_pgt));
+
+	/*
+	 * We use the same shadow offset for 4- and 5-level paging to
+	 * facilitate boot-time switching between paging modes.
+	 * As result in 5-level paging mode KASAN_SHADOW_START and
+	 * KASAN_SHADOW_END are not aligned to PGD boundary.
+	 *
+	 * KASAN_SHADOW_START doesn't share PGD with anything else.
+	 * We claim whole PGD entry to make things easier.
+	 *
+	 * KASAN_SHADOW_END lands in the last PGD entry and it collides with
+	 * bunch of things like kernel code, modules, EFI mapping, etc.
+	 * We need to take extra steps to not overwrite them.
+	 */
+	if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
+		void *ptr;
+
+		ptr = (void *)pgd_page_vaddr(*pgd_offset_k(KASAN_SHADOW_END));
+		memcpy(tmp_p4d_table, (void *)ptr, sizeof(tmp_p4d_table));
+		set_pgd(&early_top_pgt[pgd_index(KASAN_SHADOW_END)],
+				__pgd(__pa(tmp_p4d_table) | _KERNPG_TABLE));
+	}
+
 	load_cr3(early_top_pgt);
 	__flush_tlb_all();
 
-	clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
+	clear_pgds(KASAN_SHADOW_START & PGDIR_MASK, KASAN_SHADOW_END);
 
-	kasan_populate_zero_shadow((void *)KASAN_SHADOW_START,
+	kasan_populate_zero_shadow((void *)(KASAN_SHADOW_START & PGDIR_MASK),
 			kasan_mem_to_shadow((void *)PAGE_OFFSET));
 
 	for (i = 0; i < E820_MAX_ENTRIES; i++) {
diff --git a/arch/x86/mm/kaslr.c b/arch/x86/mm/kaslr.c
index af599167fe3c..879ef930e2c2 100644
--- a/arch/x86/mm/kaslr.c
+++ b/arch/x86/mm/kaslr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file implements KASLR memory randomization for x86_64. It randomizes
  * the virtual address space of kernel memory regions (physical memory
diff --git a/arch/x86/mm/kmemcheck/error.c b/arch/x86/mm/kmemcheck/error.c
index dab41876cdd5..872ec4159a68 100644
--- a/arch/x86/mm/kmemcheck/error.c
+++ b/arch/x86/mm/kmemcheck/error.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/interrupt.h>
 #include <linux/kdebug.h>
 #include <linux/kmemcheck.h>
diff --git a/arch/x86/mm/kmemcheck/error.h b/arch/x86/mm/kmemcheck/error.h
index 0efc2e8d0a20..39f80d7a874d 100644
--- a/arch/x86/mm/kmemcheck/error.h
+++ b/arch/x86/mm/kmemcheck/error.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH__X86__MM__KMEMCHECK__ERROR_H
 #define ARCH__X86__MM__KMEMCHECK__ERROR_H
 
diff --git a/arch/x86/mm/kmemcheck/opcode.c b/arch/x86/mm/kmemcheck/opcode.c
index 324aa3f07237..df8109ddf7fe 100644
--- a/arch/x86/mm/kmemcheck/opcode.c
+++ b/arch/x86/mm/kmemcheck/opcode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 
 #include "opcode.h"
diff --git a/arch/x86/mm/kmemcheck/opcode.h b/arch/x86/mm/kmemcheck/opcode.h
index 6956aad66b5b..51a1ce94c24a 100644
--- a/arch/x86/mm/kmemcheck/opcode.h
+++ b/arch/x86/mm/kmemcheck/opcode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH__X86__MM__KMEMCHECK__OPCODE_H
 #define ARCH__X86__MM__KMEMCHECK__OPCODE_H
 
diff --git a/arch/x86/mm/kmemcheck/pte.c b/arch/x86/mm/kmemcheck/pte.c
index 4ead26eeaf96..8a03be90272a 100644
--- a/arch/x86/mm/kmemcheck/pte.c
+++ b/arch/x86/mm/kmemcheck/pte.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 
 #include <asm/pgtable.h>
diff --git a/arch/x86/mm/kmemcheck/pte.h b/arch/x86/mm/kmemcheck/pte.h
index 9f5966456492..b595612382c2 100644
--- a/arch/x86/mm/kmemcheck/pte.h
+++ b/arch/x86/mm/kmemcheck/pte.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH__X86__MM__KMEMCHECK__PTE_H
 #define ARCH__X86__MM__KMEMCHECK__PTE_H
 
diff --git a/arch/x86/mm/kmemcheck/selftest.c b/arch/x86/mm/kmemcheck/selftest.c
index aef7140c0063..7ce0be1f99eb 100644
--- a/arch/x86/mm/kmemcheck/selftest.c
+++ b/arch/x86/mm/kmemcheck/selftest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/kernel.h>
 
diff --git a/arch/x86/mm/kmemcheck/selftest.h b/arch/x86/mm/kmemcheck/selftest.h
index 8fed4fe11f95..8d759aae453d 100644
--- a/arch/x86/mm/kmemcheck/selftest.h
+++ b/arch/x86/mm/kmemcheck/selftest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_X86_MM_KMEMCHECK_SELFTEST_H
 #define ARCH_X86_MM_KMEMCHECK_SELFTEST_H
 
diff --git a/arch/x86/mm/kmemcheck/shadow.h b/arch/x86/mm/kmemcheck/shadow.h
index ff0b2f70fbcb..49768dc18664 100644
--- a/arch/x86/mm/kmemcheck/shadow.h
+++ b/arch/x86/mm/kmemcheck/shadow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH__X86__MM__KMEMCHECK__SHADOW_H
 #define ARCH__X86__MM__KMEMCHECK__SHADOW_H
 
diff --git a/arch/x86/mm/kmmio.c b/arch/x86/mm/kmmio.c
index afc47f5c9531..c21c2ed04612 100644
--- a/arch/x86/mm/kmmio.c
+++ b/arch/x86/mm/kmmio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Support for MMIO probes.
  * Benfit many code from kprobes
  * (C) 2002 Louis Zhuang <louis.zhuang@intel.com>.
diff --git a/arch/x86/mm/mem_encrypt.c b/arch/x86/mm/mem_encrypt.c
index 3fcc8e01683b..d9a9e9fc75dd 100644
--- a/arch/x86/mm/mem_encrypt.c
+++ b/arch/x86/mm/mem_encrypt.c
@@ -10,6 +10,8 @@
  * published by the Free Software Foundation.
  */
 
+#define DISABLE_BRANCH_PROFILING
+
 #include <linux/linkage.h>
 #include <linux/init.h>
 #include <linux/mm.h>
@@ -28,6 +30,8 @@
 #include <asm/msr.h>
 #include <asm/cmdline.h>
 
+#include "mm_internal.h"
+
 static char sme_cmdline_arg[] __initdata = "mem_encrypt";
 static char sme_cmdline_on[]  __initdata = "on";
 static char sme_cmdline_off[] __initdata = "off";
@@ -38,7 +42,11 @@ static char sme_cmdline_off[] __initdata = "off";
  * section is later cleared.
  */
 u64 sme_me_mask __section(.data) = 0;
-EXPORT_SYMBOL_GPL(sme_me_mask);
+EXPORT_SYMBOL(sme_me_mask);
+DEFINE_STATIC_KEY_FALSE(sev_enable_key);
+EXPORT_SYMBOL_GPL(sev_enable_key);
+
+static bool sev_enabled __section(.data);
 
 /* Buffer used for early in-place encryption by BSP, no locking needed */
 static char sme_early_buffer[PAGE_SIZE] __aligned(PAGE_SIZE);
@@ -61,7 +69,6 @@ static void __init __sme_early_enc_dec(resource_size_t paddr,
 	if (!sme_me_mask)
 		return;
 
-	local_flush_tlb();
 	wbinvd();
 
 	/*
@@ -188,8 +195,238 @@ void __init sme_early_init(void)
 	/* Update the protection map with memory encryption mask */
 	for (i = 0; i < ARRAY_SIZE(protection_map); i++)
 		protection_map[i] = pgprot_encrypted(protection_map[i]);
+
+	if (sev_active())
+		swiotlb_force = SWIOTLB_FORCE;
+}
+
+static void *sev_alloc(struct device *dev, size_t size, dma_addr_t *dma_handle,
+		       gfp_t gfp, unsigned long attrs)
+{
+	unsigned long dma_mask;
+	unsigned int order;
+	struct page *page;
+	void *vaddr = NULL;
+
+	dma_mask = dma_alloc_coherent_mask(dev, gfp);
+	order = get_order(size);
+
+	/*
+	 * Memory will be memset to zero after marking decrypted, so don't
+	 * bother clearing it before.
+	 */
+	gfp &= ~__GFP_ZERO;
+
+	page = alloc_pages_node(dev_to_node(dev), gfp, order);
+	if (page) {
+		dma_addr_t addr;
+
+		/*
+		 * Since we will be clearing the encryption bit, check the
+		 * mask with it already cleared.
+		 */
+		addr = __sme_clr(phys_to_dma(dev, page_to_phys(page)));
+		if ((addr + size) > dma_mask) {
+			__free_pages(page, get_order(size));
+		} else {
+			vaddr = page_address(page);
+			*dma_handle = addr;
+		}
+	}
+
+	if (!vaddr)
+		vaddr = swiotlb_alloc_coherent(dev, size, dma_handle, gfp);
+
+	if (!vaddr)
+		return NULL;
+
+	/* Clear the SME encryption bit for DMA use if not swiotlb area */
+	if (!is_swiotlb_buffer(dma_to_phys(dev, *dma_handle))) {
+		set_memory_decrypted((unsigned long)vaddr, 1 << order);
+		memset(vaddr, 0, PAGE_SIZE << order);
+		*dma_handle = __sme_clr(*dma_handle);
+	}
+
+	return vaddr;
+}
+
+static void sev_free(struct device *dev, size_t size, void *vaddr,
+		     dma_addr_t dma_handle, unsigned long attrs)
+{
+	/* Set the SME encryption bit for re-use if not swiotlb area */
+	if (!is_swiotlb_buffer(dma_to_phys(dev, dma_handle)))
+		set_memory_encrypted((unsigned long)vaddr,
+				     1 << get_order(size));
+
+	swiotlb_free_coherent(dev, size, vaddr, dma_handle);
+}
+
+static void __init __set_clr_pte_enc(pte_t *kpte, int level, bool enc)
+{
+	pgprot_t old_prot, new_prot;
+	unsigned long pfn, pa, size;
+	pte_t new_pte;
+
+	switch (level) {
+	case PG_LEVEL_4K:
+		pfn = pte_pfn(*kpte);
+		old_prot = pte_pgprot(*kpte);
+		break;
+	case PG_LEVEL_2M:
+		pfn = pmd_pfn(*(pmd_t *)kpte);
+		old_prot = pmd_pgprot(*(pmd_t *)kpte);
+		break;
+	case PG_LEVEL_1G:
+		pfn = pud_pfn(*(pud_t *)kpte);
+		old_prot = pud_pgprot(*(pud_t *)kpte);
+		break;
+	default:
+		return;
+	}
+
+	new_prot = old_prot;
+	if (enc)
+		pgprot_val(new_prot) |= _PAGE_ENC;
+	else
+		pgprot_val(new_prot) &= ~_PAGE_ENC;
+
+	/* If prot is same then do nothing. */
+	if (pgprot_val(old_prot) == pgprot_val(new_prot))
+		return;
+
+	pa = pfn << page_level_shift(level);
+	size = page_level_size(level);
+
+	/*
+	 * We are going to perform in-place en-/decryption and change the
+	 * physical page attribute from C=1 to C=0 or vice versa. Flush the
+	 * caches to ensure that data gets accessed with the correct C-bit.
+	 */
+	clflush_cache_range(__va(pa), size);
+
+	/* Encrypt/decrypt the contents in-place */
+	if (enc)
+		sme_early_encrypt(pa, size);
+	else
+		sme_early_decrypt(pa, size);
+
+	/* Change the page encryption mask. */
+	new_pte = pfn_pte(pfn, new_prot);
+	set_pte_atomic(kpte, new_pte);
+}
+
+static int __init early_set_memory_enc_dec(unsigned long vaddr,
+					   unsigned long size, bool enc)
+{
+	unsigned long vaddr_end, vaddr_next;
+	unsigned long psize, pmask;
+	int split_page_size_mask;
+	int level, ret;
+	pte_t *kpte;
+
+	vaddr_next = vaddr;
+	vaddr_end = vaddr + size;
+
+	for (; vaddr < vaddr_end; vaddr = vaddr_next) {
+		kpte = lookup_address(vaddr, &level);
+		if (!kpte || pte_none(*kpte)) {
+			ret = 1;
+			goto out;
+		}
+
+		if (level == PG_LEVEL_4K) {
+			__set_clr_pte_enc(kpte, level, enc);
+			vaddr_next = (vaddr & PAGE_MASK) + PAGE_SIZE;
+			continue;
+		}
+
+		psize = page_level_size(level);
+		pmask = page_level_mask(level);
+
+		/*
+		 * Check whether we can change the large page in one go.
+		 * We request a split when the address is not aligned and
+		 * the number of pages to set/clear encryption bit is smaller
+		 * than the number of pages in the large page.
+		 */
+		if (vaddr == (vaddr & pmask) &&
+		    ((vaddr_end - vaddr) >= psize)) {
+			__set_clr_pte_enc(kpte, level, enc);
+			vaddr_next = (vaddr & pmask) + psize;
+			continue;
+		}
+
+		/*
+		 * The virtual address is part of a larger page, create the next
+		 * level page table mapping (4K or 2M). If it is part of a 2M
+		 * page then we request a split of the large page into 4K
+		 * chunks. A 1GB large page is split into 2M pages, resp.
+		 */
+		if (level == PG_LEVEL_2M)
+			split_page_size_mask = 0;
+		else
+			split_page_size_mask = 1 << PG_LEVEL_2M;
+
+		kernel_physical_mapping_init(__pa(vaddr & pmask),
+					     __pa((vaddr_end & pmask) + psize),
+					     split_page_size_mask);
+	}
+
+	ret = 0;
+
+out:
+	__flush_tlb_all();
+	return ret;
+}
+
+int __init early_set_memory_decrypted(unsigned long vaddr, unsigned long size)
+{
+	return early_set_memory_enc_dec(vaddr, size, false);
+}
+
+int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size)
+{
+	return early_set_memory_enc_dec(vaddr, size, true);
 }
 
+/*
+ * SME and SEV are very similar but they are not the same, so there are
+ * times that the kernel will need to distinguish between SME and SEV. The
+ * sme_active() and sev_active() functions are used for this.  When a
+ * distinction isn't needed, the mem_encrypt_active() function can be used.
+ *
+ * The trampoline code is a good example for this requirement.  Before
+ * paging is activated, SME will access all memory as decrypted, but SEV
+ * will access all memory as encrypted.  So, when APs are being brought
+ * up under SME the trampoline area cannot be encrypted, whereas under SEV
+ * the trampoline area must be encrypted.
+ */
+bool sme_active(void)
+{
+	return sme_me_mask && !sev_enabled;
+}
+EXPORT_SYMBOL_GPL(sme_active);
+
+bool sev_active(void)
+{
+	return sme_me_mask && sev_enabled;
+}
+EXPORT_SYMBOL_GPL(sev_active);
+
+static const struct dma_map_ops sev_dma_ops = {
+	.alloc                  = sev_alloc,
+	.free                   = sev_free,
+	.map_page               = swiotlb_map_page,
+	.unmap_page             = swiotlb_unmap_page,
+	.map_sg                 = swiotlb_map_sg_attrs,
+	.unmap_sg               = swiotlb_unmap_sg_attrs,
+	.sync_single_for_cpu    = swiotlb_sync_single_for_cpu,
+	.sync_single_for_device = swiotlb_sync_single_for_device,
+	.sync_sg_for_cpu        = swiotlb_sync_sg_for_cpu,
+	.sync_sg_for_device     = swiotlb_sync_sg_for_device,
+	.mapping_error          = swiotlb_dma_mapping_error,
+};
+
 /* Architecture __weak replacement functions */
 void __init mem_encrypt_init(void)
 {
@@ -199,7 +436,23 @@ void __init mem_encrypt_init(void)
 	/* Call into SWIOTLB to update the SWIOTLB DMA buffers */
 	swiotlb_update_mem_attributes();
 
-	pr_info("AMD Secure Memory Encryption (SME) active\n");
+	/*
+	 * With SEV, DMA operations cannot use encryption. New DMA ops
+	 * are required in order to mark the DMA areas as decrypted or
+	 * to use bounce buffers.
+	 */
+	if (sev_active())
+		dma_ops = &sev_dma_ops;
+
+	/*
+	 * With SEV, we need to unroll the rep string I/O instructions.
+	 */
+	if (sev_active())
+		static_branch_enable(&sev_enable_key);
+
+	pr_info("AMD %s active\n",
+		sev_active() ? "Secure Encrypted Virtualization (SEV)"
+			     : "Secure Memory Encryption (SME)");
 }
 
 void swiotlb_set_mem_attributes(void *vaddr, unsigned long size)
@@ -527,37 +780,63 @@ void __init __nostackprotector sme_enable(struct boot_params *bp)
 {
 	const char *cmdline_ptr, *cmdline_arg, *cmdline_on, *cmdline_off;
 	unsigned int eax, ebx, ecx, edx;
+	unsigned long feature_mask;
 	bool active_by_default;
 	unsigned long me_mask;
 	char buffer[16];
 	u64 msr;
 
-	/* Check for the SME support leaf */
+	/* Check for the SME/SEV support leaf */
 	eax = 0x80000000;
 	ecx = 0;
 	native_cpuid(&eax, &ebx, &ecx, &edx);
 	if (eax < 0x8000001f)
 		return;
 
+#define AMD_SME_BIT	BIT(0)
+#define AMD_SEV_BIT	BIT(1)
 	/*
-	 * Check for the SME feature:
-	 *   CPUID Fn8000_001F[EAX] - Bit 0
-	 *     Secure Memory Encryption support
-	 *   CPUID Fn8000_001F[EBX] - Bits 5:0
-	 *     Pagetable bit position used to indicate encryption
+	 * Set the feature mask (SME or SEV) based on whether we are
+	 * running under a hypervisor.
+	 */
+	eax = 1;
+	ecx = 0;
+	native_cpuid(&eax, &ebx, &ecx, &edx);
+	feature_mask = (ecx & BIT(31)) ? AMD_SEV_BIT : AMD_SME_BIT;
+
+	/*
+	 * Check for the SME/SEV feature:
+	 *   CPUID Fn8000_001F[EAX]
+	 *   - Bit 0 - Secure Memory Encryption support
+	 *   - Bit 1 - Secure Encrypted Virtualization support
+	 *   CPUID Fn8000_001F[EBX]
+	 *   - Bits 5:0 - Pagetable bit position used to indicate encryption
 	 */
 	eax = 0x8000001f;
 	ecx = 0;
 	native_cpuid(&eax, &ebx, &ecx, &edx);
-	if (!(eax & 1))
+	if (!(eax & feature_mask))
 		return;
 
 	me_mask = 1UL << (ebx & 0x3f);
 
-	/* Check if SME is enabled */
-	msr = __rdmsr(MSR_K8_SYSCFG);
-	if (!(msr & MSR_K8_SYSCFG_MEM_ENCRYPT))
+	/* Check if memory encryption is enabled */
+	if (feature_mask == AMD_SME_BIT) {
+		/* For SME, check the SYSCFG MSR */
+		msr = __rdmsr(MSR_K8_SYSCFG);
+		if (!(msr & MSR_K8_SYSCFG_MEM_ENCRYPT))
+			return;
+	} else {
+		/* For SEV, check the SEV MSR */
+		msr = __rdmsr(MSR_AMD64_SEV);
+		if (!(msr & MSR_AMD64_SEV_ENABLED))
+			return;
+
+		/* SEV state cannot be controlled by a command line option */
+		sme_me_mask = me_mask;
+		sev_enabled = true;
 		return;
+	}
 
 	/*
 	 * Fixups have not been applied to phys_base yet and we're running
diff --git a/arch/x86/mm/mm_internal.h b/arch/x86/mm/mm_internal.h
index 62474ba66c8e..4e1f6e1b8159 100644
--- a/arch/x86/mm/mm_internal.h
+++ b/arch/x86/mm/mm_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __X86_MM_INTERNAL_H
 #define __X86_MM_INTERNAL_H
 
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 9ceaa955d2ba..e500949bae24 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mpx.c - Memory Protection eXtensions
  *
@@ -12,6 +13,7 @@
 #include <linux/sched/sysctl.h>
 
 #include <asm/insn.h>
+#include <asm/insn-eval.h>
 #include <asm/mman.h>
 #include <asm/mmu_context.h>
 #include <asm/mpx.h>
@@ -60,123 +62,6 @@ static unsigned long mpx_mmap(unsigned long len)
 	return addr;
 }
 
-enum reg_type {
-	REG_TYPE_RM = 0,
-	REG_TYPE_INDEX,
-	REG_TYPE_BASE,
-};
-
-static int get_reg_offset(struct insn *insn, struct pt_regs *regs,
-			  enum reg_type type)
-{
-	int regno = 0;
-
-	static const int regoff[] = {
-		offsetof(struct pt_regs, ax),
-		offsetof(struct pt_regs, cx),
-		offsetof(struct pt_regs, dx),
-		offsetof(struct pt_regs, bx),
-		offsetof(struct pt_regs, sp),
-		offsetof(struct pt_regs, bp),
-		offsetof(struct pt_regs, si),
-		offsetof(struct pt_regs, di),
-#ifdef CONFIG_X86_64
-		offsetof(struct pt_regs, r8),
-		offsetof(struct pt_regs, r9),
-		offsetof(struct pt_regs, r10),
-		offsetof(struct pt_regs, r11),
-		offsetof(struct pt_regs, r12),
-		offsetof(struct pt_regs, r13),
-		offsetof(struct pt_regs, r14),
-		offsetof(struct pt_regs, r15),
-#endif
-	};
-	int nr_registers = ARRAY_SIZE(regoff);
-	/*
-	 * Don't possibly decode a 32-bit instructions as
-	 * reading a 64-bit-only register.
-	 */
-	if (IS_ENABLED(CONFIG_X86_64) && !insn->x86_64)
-		nr_registers -= 8;
-
-	switch (type) {
-	case REG_TYPE_RM:
-		regno = X86_MODRM_RM(insn->modrm.value);
-		if (X86_REX_B(insn->rex_prefix.value))
-			regno += 8;
-		break;
-
-	case REG_TYPE_INDEX:
-		regno = X86_SIB_INDEX(insn->sib.value);
-		if (X86_REX_X(insn->rex_prefix.value))
-			regno += 8;
-		break;
-
-	case REG_TYPE_BASE:
-		regno = X86_SIB_BASE(insn->sib.value);
-		if (X86_REX_B(insn->rex_prefix.value))
-			regno += 8;
-		break;
-
-	default:
-		pr_err("invalid register type");
-		BUG();
-		break;
-	}
-
-	if (regno >= nr_registers) {
-		WARN_ONCE(1, "decoded an instruction with an invalid register");
-		return -EINVAL;
-	}
-	return regoff[regno];
-}
-
-/*
- * return the address being referenced be instruction
- * for rm=3 returning the content of the rm reg
- * for rm!=3 calculates the address using SIB and Disp
- */
-static void __user *mpx_get_addr_ref(struct insn *insn, struct pt_regs *regs)
-{
-	unsigned long addr, base, indx;
-	int addr_offset, base_offset, indx_offset;
-	insn_byte_t sib;
-
-	insn_get_modrm(insn);
-	insn_get_sib(insn);
-	sib = insn->sib.value;
-
-	if (X86_MODRM_MOD(insn->modrm.value) == 3) {
-		addr_offset = get_reg_offset(insn, regs, REG_TYPE_RM);
-		if (addr_offset < 0)
-			goto out_err;
-		addr = regs_get_register(regs, addr_offset);
-	} else {
-		if (insn->sib.nbytes) {
-			base_offset = get_reg_offset(insn, regs, REG_TYPE_BASE);
-			if (base_offset < 0)
-				goto out_err;
-
-			indx_offset = get_reg_offset(insn, regs, REG_TYPE_INDEX);
-			if (indx_offset < 0)
-				goto out_err;
-
-			base = regs_get_register(regs, base_offset);
-			indx = regs_get_register(regs, indx_offset);
-			addr = base + indx * (1 << X86_SIB_SCALE(sib));
-		} else {
-			addr_offset = get_reg_offset(insn, regs, REG_TYPE_RM);
-			if (addr_offset < 0)
-				goto out_err;
-			addr = regs_get_register(regs, addr_offset);
-		}
-		addr += insn->displacement.value;
-	}
-	return (void __user *)addr;
-out_err:
-	return (void __user *)-1;
-}
-
 static int mpx_insn_decode(struct insn *insn,
 			   struct pt_regs *regs)
 {
@@ -289,7 +174,7 @@ siginfo_t *mpx_generate_siginfo(struct pt_regs *regs)
 	info->si_signo = SIGSEGV;
 	info->si_errno = 0;
 	info->si_code = SEGV_BNDERR;
-	info->si_addr = mpx_get_addr_ref(&insn, regs);
+	info->si_addr = insn_get_addr_ref(&insn, regs);
 	/*
 	 * We were not able to extract an address from the instruction,
 	 * probably because there was something invalid in it.
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 9405ffc91502..066f3511d5f1 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic VM initialization for x86-64 NUMA setups.
  * Copyright 2002,2003 Andi Kleen, SuSE Labs.
diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c
index d805162e6045..34a2a3bfde9c 100644
--- a/arch/x86/mm/numa_emulation.c
+++ b/arch/x86/mm/numa_emulation.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NUMA emulation
  */
diff --git a/arch/x86/mm/numa_internal.h b/arch/x86/mm/numa_internal.h
index ad86ec91e640..86860f279662 100644
--- a/arch/x86/mm/numa_internal.h
+++ b/arch/x86/mm/numa_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __X86_MM_NUMA_INTERNAL_H
 #define __X86_MM_NUMA_INTERNAL_H
 
diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c
index 5f169d5d76a8..a25588ad75ef 100644
--- a/arch/x86/mm/pageattr-test.c
+++ b/arch/x86/mm/pageattr-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * self test for change_page_attr.
  *
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index dfb7d657cf43..3fe68483463c 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1781,8 +1781,8 @@ static int __set_memory_enc_dec(unsigned long addr, int numpages, bool enc)
 	unsigned long start;
 	int ret;
 
-	/* Nothing to do if the SME is not active */
-	if (!sme_active())
+	/* Nothing to do if memory encryption is not active */
+	if (!mem_encrypt_active())
 		return 0;
 
 	/* Should not be working on unaligned addresses */
diff --git a/arch/x86/mm/pat_internal.h b/arch/x86/mm/pat_internal.h
index a739bfc40690..eeb5caeb089b 100644
--- a/arch/x86/mm/pat_internal.h
+++ b/arch/x86/mm/pat_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PAT_INTERNAL_H_
 #define __PAT_INTERNAL_H_
 
diff --git a/arch/x86/mm/pat_rbtree.c b/arch/x86/mm/pat_rbtree.c
index d76485b22824..fa16036fa592 100644
--- a/arch/x86/mm/pat_rbtree.c
+++ b/arch/x86/mm/pat_rbtree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Handle caching attributes in page tables (PAT)
  *
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 218834a3e9ad..17ebc5a978cc 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/gfp.h>
 #include <asm/pgalloc.h>
@@ -426,10 +427,8 @@ int ptep_set_access_flags(struct vm_area_struct *vma,
 {
 	int changed = !pte_same(*ptep, entry);
 
-	if (changed && dirty) {
+	if (changed && dirty)
 		*ptep = entry;
-		pte_update(vma->vm_mm, address, ptep);
-	}
 
 	return changed;
 }
@@ -486,9 +485,6 @@ int ptep_test_and_clear_young(struct vm_area_struct *vma,
 		ret = test_and_clear_bit(_PAGE_BIT_ACCESSED,
 					 (unsigned long *) &ptep->pte);
 
-	if (ret)
-		pte_update(vma->vm_mm, addr, ptep);
-
 	return ret;
 }
 
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index b9bd5b8b14fa..6b9bf023a700 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/arch/x86/mm/physaddr.c b/arch/x86/mm/physaddr.c
index cfc3b9121ce4..7f9acb68324c 100644
--- a/arch/x86/mm/physaddr.c
+++ b/arch/x86/mm/physaddr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bootmem.h>
 #include <linux/mmdebug.h>
 #include <linux/export.h>
diff --git a/arch/x86/mm/physaddr.h b/arch/x86/mm/physaddr.h
index a3cd5a0c97b3..9f6419cafc32 100644
--- a/arch/x86/mm/physaddr.h
+++ b/arch/x86/mm/physaddr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/processor.h>
 
 static inline int phys_addr_valid(resource_size_t addr)
diff --git a/arch/x86/mm/pkeys.c b/arch/x86/mm/pkeys.c
index 2dab69a706ec..d7bc0eea20a5 100644
--- a/arch/x86/mm/pkeys.c
+++ b/arch/x86/mm/pkeys.c
@@ -18,7 +18,6 @@
 
 #include <asm/cpufeature.h>             /* boot_cpu_has, ...            */
 #include <asm/mmu_context.h>            /* vma_pkey()                   */
-#include <asm/fpu/internal.h>           /* fpregs_active()              */
 
 int __execute_only_pkey(struct mm_struct *mm)
 {
@@ -45,7 +44,7 @@ int __execute_only_pkey(struct mm_struct *mm)
 	 */
 	preempt_disable();
 	if (!need_to_set_mm_pkey &&
-	    fpregs_active() &&
+	    current->thread.fpu.initialized &&
 	    !__pkru_allows_read(read_pkru(), execute_only_pkey)) {
 		preempt_enable();
 		return execute_only_pkey;
diff --git a/arch/x86/mm/setup_nx.c b/arch/x86/mm/setup_nx.c
index f65a33f505b6..adb3c5784dac 100644
--- a/arch/x86/mm/setup_nx.c
+++ b/arch/x86/mm/setup_nx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/spinlock.h>
 #include <linux/errno.h>
 #include <linux/init.h>
diff --git a/arch/x86/mm/srat.c b/arch/x86/mm/srat.c
index 3ea20d61b523..dac07e4f5834 100644
--- a/arch/x86/mm/srat.c
+++ b/arch/x86/mm/srat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ACPI 3.0 based NUMA setup
  * Copyright 2004 Andi Kleen, SuSE Labs.
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 37689a7cc03b..3118392cdf75 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -30,6 +30,7 @@
 
 atomic64_t last_mm_ctx_id = ATOMIC64_INIT(1);
 
+
 static void choose_new_asid(struct mm_struct *next, u64 next_tlb_gen,
 			    u16 *new_asid, bool *need_flush)
 {
@@ -80,10 +81,11 @@ void leave_mm(int cpu)
 		return;
 
 	/* Warn if we're not lazy. */
-	WARN_ON(cpumask_test_cpu(smp_processor_id(), mm_cpumask(loaded_mm)));
+	WARN_ON(!this_cpu_read(cpu_tlbstate.is_lazy));
 
 	switch_mm(NULL, &init_mm, NULL);
 }
+EXPORT_SYMBOL_GPL(leave_mm);
 
 void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 	       struct task_struct *tsk)
@@ -121,47 +123,45 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 	 * hypothetical buggy code that directly switches to swapper_pg_dir
 	 * without going through leave_mm() / switch_mm_irqs_off() or that
 	 * does something like write_cr3(read_cr3_pa()).
+	 *
+	 * Only do this check if CONFIG_DEBUG_VM=y because __read_cr3()
+	 * isn't free.
 	 */
-	VM_BUG_ON(__read_cr3() != (__sme_pa(real_prev->pgd) | prev_asid));
+#ifdef CONFIG_DEBUG_VM
+	if (WARN_ON_ONCE(__read_cr3() != build_cr3(real_prev, prev_asid))) {
+		/*
+		 * If we were to BUG here, we'd be very likely to kill
+		 * the system so hard that we don't see the call trace.
+		 * Try to recover instead by ignoring the error and doing
+		 * a global flush to minimize the chance of corruption.
+		 *
+		 * (This is far from being a fully correct recovery.
+		 *  Architecturally, the CPU could prefetch something
+		 *  back into an incorrect ASID slot and leave it there
+		 *  to cause trouble down the road.  It's better than
+		 *  nothing, though.)
+		 */
+		__flush_tlb_all();
+	}
+#endif
+	this_cpu_write(cpu_tlbstate.is_lazy, false);
 
 	if (real_prev == next) {
-		VM_BUG_ON(this_cpu_read(cpu_tlbstate.ctxs[prev_asid].ctx_id) !=
-			  next->context.ctx_id);
-
-		if (cpumask_test_cpu(cpu, mm_cpumask(next))) {
-			/*
-			 * There's nothing to do: we weren't lazy, and we
-			 * aren't changing our mm.  We don't need to flush
-			 * anything, nor do we need to update CR3, CR4, or
-			 * LDTR.
-			 */
-			return;
-		}
-
-		/* Resume remote flushes and then read tlb_gen. */
-		cpumask_set_cpu(cpu, mm_cpumask(next));
-		next_tlb_gen = atomic64_read(&next->context.tlb_gen);
-
-		if (this_cpu_read(cpu_tlbstate.ctxs[prev_asid].tlb_gen) <
-		    next_tlb_gen) {
-			/*
-			 * Ideally, we'd have a flush_tlb() variant that
-			 * takes the known CR3 value as input.  This would
-			 * be faster on Xen PV and on hypothetical CPUs
-			 * on which INVPCID is fast.
-			 */
-			this_cpu_write(cpu_tlbstate.ctxs[prev_asid].tlb_gen,
-				       next_tlb_gen);
-			write_cr3(__sme_pa(next->pgd) | prev_asid);
-			trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH,
-					TLB_FLUSH_ALL);
-		}
+		VM_WARN_ON(this_cpu_read(cpu_tlbstate.ctxs[prev_asid].ctx_id) !=
+			   next->context.ctx_id);
 
 		/*
-		 * We just exited lazy mode, which means that CR4 and/or LDTR
-		 * may be stale.  (Changes to the required CR4 and LDTR states
-		 * are not reflected in tlb_gen.)
+		 * We don't currently support having a real mm loaded without
+		 * our cpu set in mm_cpumask().  We have all the bookkeeping
+		 * in place to figure out whether we would need to flush
+		 * if our cpu were cleared in mm_cpumask(), but we don't
+		 * currently use it.
 		 */
+		if (WARN_ON_ONCE(real_prev != &init_mm &&
+				 !cpumask_test_cpu(cpu, mm_cpumask(next))))
+			cpumask_set_cpu(cpu, mm_cpumask(next));
+
+		return;
 	} else {
 		u16 new_asid;
 		bool need_flush;
@@ -172,7 +172,7 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 			 * mapped in the new pgd, we'll double-fault.  Forcibly
 			 * map it.
 			 */
-			unsigned int index = pgd_index(current_stack_pointer());
+			unsigned int index = pgd_index(current_stack_pointer);
 			pgd_t *pgd = next->pgd + index;
 
 			if (unlikely(pgd_none(*pgd)))
@@ -180,10 +180,9 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 		}
 
 		/* Stop remote flushes for the previous mm */
-		if (cpumask_test_cpu(cpu, mm_cpumask(real_prev)))
-			cpumask_clear_cpu(cpu, mm_cpumask(real_prev));
-
-		VM_WARN_ON_ONCE(cpumask_test_cpu(cpu, mm_cpumask(next)));
+		VM_WARN_ON_ONCE(!cpumask_test_cpu(cpu, mm_cpumask(real_prev)) &&
+				real_prev != &init_mm);
+		cpumask_clear_cpu(cpu, mm_cpumask(real_prev));
 
 		/*
 		 * Start remote flushes and then read tlb_gen.
@@ -196,13 +195,23 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 		if (need_flush) {
 			this_cpu_write(cpu_tlbstate.ctxs[new_asid].ctx_id, next->context.ctx_id);
 			this_cpu_write(cpu_tlbstate.ctxs[new_asid].tlb_gen, next_tlb_gen);
-			write_cr3(__sme_pa(next->pgd) | new_asid);
-			trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH,
-					TLB_FLUSH_ALL);
+			write_cr3(build_cr3(next, new_asid));
+
+			/*
+			 * NB: This gets called via leave_mm() in the idle path
+			 * where RCU functions differently.  Tracing normally
+			 * uses RCU, so we need to use the _rcuidle variant.
+			 *
+			 * (There is no good reason for this.  The idle code should
+			 *  be rearranged to call this before rcu_idle_enter().)
+			 */
+			trace_tlb_flush_rcuidle(TLB_FLUSH_ON_TASK_SWITCH, TLB_FLUSH_ALL);
 		} else {
 			/* The new ASID is already up to date. */
-			write_cr3(__sme_pa(next->pgd) | new_asid | CR3_NOFLUSH);
-			trace_tlb_flush(TLB_FLUSH_ON_TASK_SWITCH, 0);
+			write_cr3(build_cr3_noflush(next, new_asid));
+
+			/* See above wrt _rcuidle. */
+			trace_tlb_flush_rcuidle(TLB_FLUSH_ON_TASK_SWITCH, 0);
 		}
 
 		this_cpu_write(cpu_tlbstate.loaded_mm, next);
@@ -214,6 +223,40 @@ void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
 }
 
 /*
+ * Please ignore the name of this function.  It should be called
+ * switch_to_kernel_thread().
+ *
+ * enter_lazy_tlb() is a hint from the scheduler that we are entering a
+ * kernel thread or other context without an mm.  Acceptable implementations
+ * include doing nothing whatsoever, switching to init_mm, or various clever
+ * lazy tricks to try to minimize TLB flushes.
+ *
+ * The scheduler reserves the right to call enter_lazy_tlb() several times
+ * in a row.  It will notify us that we're going back to a real mm by
+ * calling switch_mm_irqs_off().
+ */
+void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+{
+	if (this_cpu_read(cpu_tlbstate.loaded_mm) == &init_mm)
+		return;
+
+	if (tlb_defer_switch_to_init_mm()) {
+		/*
+		 * There's a significant optimization that may be possible
+		 * here.  We have accurate enough TLB flush tracking that we
+		 * don't need to maintain coherence of TLB per se when we're
+		 * lazy.  We do, however, need to maintain coherence of
+		 * paging-structure caches.  We could, in principle, leave our
+		 * old mm loaded and only switch to init_mm when
+		 * tlb_remove_page() happens.
+		 */
+		this_cpu_write(cpu_tlbstate.is_lazy, true);
+	} else {
+		switch_mm(NULL, &init_mm, NULL);
+	}
+}
+
+/*
  * Call this when reinitializing a CPU.  It fixes the following potential
  * problems:
  *
@@ -245,7 +288,7 @@ void initialize_tlbstate_and_flush(void)
 		!(cr4_read_shadow() & X86_CR4_PCIDE));
 
 	/* Force ASID 0 and force a TLB flush. */
-	write_cr3(cr3 & ~CR3_PCID_MASK);
+	write_cr3(build_cr3(mm, 0));
 
 	/* Reinitialize tlbstate. */
 	this_cpu_write(cpu_tlbstate.loaded_mm_asid, 0);
@@ -284,16 +327,20 @@ static void flush_tlb_func_common(const struct flush_tlb_info *f,
 	/* This code cannot presently handle being reentered. */
 	VM_WARN_ON(!irqs_disabled());
 
+	if (unlikely(loaded_mm == &init_mm))
+		return;
+
 	VM_WARN_ON(this_cpu_read(cpu_tlbstate.ctxs[loaded_mm_asid].ctx_id) !=
 		   loaded_mm->context.ctx_id);
 
-	if (!cpumask_test_cpu(smp_processor_id(), mm_cpumask(loaded_mm))) {
+	if (this_cpu_read(cpu_tlbstate.is_lazy)) {
 		/*
-		 * We're in lazy mode -- don't flush.  We can get here on
-		 * remote flushes due to races and on local flushes if a
-		 * kernel thread coincidentally flushes the mm it's lazily
-		 * still using.
+		 * We're in lazy mode.  We need to at least flush our
+		 * paging-structure cache to avoid speculatively reading
+		 * garbage into our TLB.  Since switching to init_mm is barely
+		 * slower than a minimal flush, just switch to init_mm.
 		 */
+		switch_mm_irqs_off(NULL, &init_mm, NULL);
 		return;
 	}
 
diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 8c9573660d51..0554e8aef4d5 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -284,9 +284,9 @@ static void emit_bpf_tail_call(u8 **pprog)
 	/* if (index >= array->map.max_entries)
 	 *   goto out;
 	 */
-	EMIT4(0x48, 0x8B, 0x46,                   /* mov rax, qword ptr [rsi + 16] */
+	EMIT2(0x89, 0xD2);                        /* mov edx, edx */
+	EMIT3(0x39, 0x56,                         /* cmp dword ptr [rsi + 16], edx */
 	      offsetof(struct bpf_array, map.max_entries));
-	EMIT3(0x48, 0x39, 0xD0);                  /* cmp rax, rdx */
 #define OFFSET1 43 /* number of bytes to jump */
 	EMIT2(X86_JBE, OFFSET1);                  /* jbe out */
 	label1 = cnt;
diff --git a/arch/x86/oprofile/Makefile b/arch/x86/oprofile/Makefile
index 1599f568f0e2..4d49b5a27025 100644
--- a/arch/x86/oprofile/Makefile
+++ b/arch/x86/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c
index 350f7096baac..7913b6921959 100644
--- a/arch/x86/oprofile/op_model_ppro.c
+++ b/arch/x86/oprofile/op_model_ppro.c
@@ -212,8 +212,8 @@ static void arch_perfmon_setup_counters(void)
 	eax.full = cpuid_eax(0xa);
 
 	/* Workaround for BIOS bugs in 6/15. Taken from perfmon2 */
-	if (eax.split.version_id == 0 && __this_cpu_read(cpu_info.x86) == 6 &&
-		__this_cpu_read(cpu_info.x86_model) == 15) {
+	if (eax.split.version_id == 0 && boot_cpu_data.x86 == 6 &&
+	    boot_cpu_data.x86_model == 15) {
 		eax.split.version_id = 2;
 		eax.split.num_counters = 2;
 		eax.split.bit_width = 40;
diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index 5c6fc3577a49..c806b57d3f22 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y				:= i386.o init.o
 
 obj-$(CONFIG_PCI_BIOS)		+= pcbios.o
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 3961103e9176..7df49c40665e 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/init.h>
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index ae387e5ee6f7..649bdde63e32 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/topology.h>
diff --git a/arch/x86/pci/bus_numa.c b/arch/x86/pci/bus_numa.c
index 6eb3c8af96e2..2752c02e3f0e 100644
--- a/arch/x86/pci/bus_numa.c
+++ b/arch/x86/pci/bus_numa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/pci.h>
 #include <linux/range.h>
diff --git a/arch/x86/pci/bus_numa.h b/arch/x86/pci/bus_numa.h
index ff8f65b04574..697dd841b118 100644
--- a/arch/x86/pci/bus_numa.h
+++ b/arch/x86/pci/bus_numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BUS_NUMA_H
 #define __BUS_NUMA_H
 /*
diff --git a/arch/x86/pci/direct.c b/arch/x86/pci/direct.c
index 15460590b8c5..2d9503323d10 100644
--- a/arch/x86/pci/direct.c
+++ b/arch/x86/pci/direct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * direct.c - Low-level direct PCI config space access
  */
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index d1067d539bee..f0114007e915 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <asm/pci-direct.h>
diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index f2228b150faa..4210da7b44de 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Exceptions for specific devices. Usually work-arounds for fatal design flaws.
  */
diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c
index 7b4307163eac..ed4ac215305d 100644
--- a/arch/x86/pci/i386.c
+++ b/arch/x86/pci/i386.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Low-Level PCI Access for i386 machines
  *
diff --git a/arch/x86/pci/init.c b/arch/x86/pci/init.c
index adb62aaa7ecd..5fc617edf108 100644
--- a/arch/x86/pci/init.c
+++ b/arch/x86/pci/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci.h>
 #include <linux/init.h>
 #include <asm/pci_x86.h>
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index b901ece278dd..1012a5f0f98d 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Intel MID PCI support
  *   Copyright (c) 2008 Intel Corporation
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 9bd115484745..0452629148be 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Low-Level PCI Support for PC -- Routing of Interrupts
  *
@@ -1092,7 +1093,7 @@ static int __init fix_acer_tm360_irqrouting(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pciirq_dmi_table[] = {
+static const struct dmi_system_id pciirq_dmi_table[] __initconst = {
 	{
 		.callback = fix_broken_hp_bios_irq9,
 		.ident = "HP Pavilion N5400 Series Laptop",
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index d1b47d5bc9c3..96684d0adcf9 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mmconfig-shared.c - Low-level direct PCI config space access via
  *                     MMCONFIG - common code between i386 and x86-64.
diff --git a/arch/x86/pci/mmconfig_64.c b/arch/x86/pci/mmconfig_64.c
index f1c1aa0430ae..887d181b769b 100644
--- a/arch/x86/pci/mmconfig_64.c
+++ b/arch/x86/pci/mmconfig_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mmconfig.c - Low-level direct PCI config space access via MMCONFIG
  *
diff --git a/arch/x86/pci/pcbios.c b/arch/x86/pci/pcbios.c
index 76595408ff53..9c97d814125e 100644
--- a/arch/x86/pci/pcbios.c
+++ b/arch/x86/pci/pcbios.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * BIOS32 and PCI BIOS handling.
  */
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 184842ef332e..d0e835470d01 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Platform specific code goes here
 obj-y	+= atom/
 obj-y	+= ce4100/
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile
index 2f56e1ed61c3..e4dc3862d423 100644
--- a/arch/x86/platform/efi/Makefile
+++ b/arch/x86/platform/efi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD_efi_thunk_$(BITS).o := y
 OBJECT_FILES_NON_STANDARD_efi_stub_$(BITS).o := y
 
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 928b6dceeca0..9061babfbc83 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common EFI (Extensible Firmware Interface) support functions
  * Based on Extensible Firmware Interface Specification version 1.0
diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c
index 52f7faa1538f..324b93328b37 100644
--- a/arch/x86/platform/efi/efi_32.c
+++ b/arch/x86/platform/efi/efi_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Extensible Firmware Interface
  *
diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c
index 12e83888e5b9..9e4ee5b04b2d 100644
--- a/arch/x86/platform/efi/efi_64.c
+++ b/arch/x86/platform/efi/efi_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * x86_64 specific EFI support functions
  * Based on Extensible Firmware Interface Specification version 1.0
@@ -32,6 +33,7 @@
 #include <linux/reboot.h>
 #include <linux/slab.h>
 #include <linux/ucs2_string.h>
+#include <linux/mem_encrypt.h>
 
 #include <asm/setup.h>
 #include <asm/page.h>
@@ -369,7 +371,11 @@ int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages)
 	 * as trim_bios_range() will reserve the first page and isolate it away
 	 * from memory allocators anyway.
 	 */
-	if (kernel_map_pages_in_pgd(pgd, 0x0, 0x0, 1, _PAGE_RW)) {
+	pf = _PAGE_RW;
+	if (sev_active())
+		pf |= _PAGE_ENC;
+
+	if (kernel_map_pages_in_pgd(pgd, 0x0, 0x0, 1, pf)) {
 		pr_err("Failed to create 1:1 mapping for the first page!\n");
 		return 1;
 	}
@@ -412,6 +418,9 @@ static void __init __map_region(efi_memory_desc_t *md, u64 va)
 	if (!(md->attribute & EFI_MEMORY_WB))
 		flags |= _PAGE_PCD;
 
+	if (sev_active())
+		flags |= _PAGE_ENC;
+
 	pfn = md->phys_addr >> PAGE_SHIFT;
 	if (kernel_map_pages_in_pgd(pgd, pfn, va, md->num_pages, flags))
 		pr_warn("Error mapping PA 0x%llx -> VA 0x%llx!\n",
@@ -538,6 +547,9 @@ static int __init efi_update_mem_attr(struct mm_struct *mm, efi_memory_desc_t *m
 	if (!(md->attribute & EFI_MEMORY_RO))
 		pf |= _PAGE_RW;
 
+	if (sev_active())
+		pf |= _PAGE_ENC;
+
 	return efi_update_mappings(md, pf);
 }
 
@@ -589,6 +601,9 @@ void __init efi_runtime_update_mappings(void)
 			(md->type != EFI_RUNTIME_SERVICES_CODE))
 			pf |= _PAGE_RW;
 
+		if (sev_active())
+			pf |= _PAGE_ENC;
+
 		efi_update_mappings(md, pf);
 	}
 }
diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S
index 040192b50d02..ab2e91e76894 100644
--- a/arch/x86/platform/efi/efi_stub_32.S
+++ b/arch/x86/platform/efi/efi_stub_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * EFI call stub for IA32.
  *
diff --git a/arch/x86/platform/efi/efi_stub_64.S b/arch/x86/platform/efi/efi_stub_64.S
index cd95075944ab..74628ec78f29 100644
--- a/arch/x86/platform/efi/efi_stub_64.S
+++ b/arch/x86/platform/efi/efi_stub_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Function calling ABI conversion from Linux to EFI for x86_64
  *
diff --git a/arch/x86/platform/efi/efi_thunk_64.S b/arch/x86/platform/efi/efi_thunk_64.S
index ff85d28c50f2..189b218da87c 100644
--- a/arch/x86/platform/efi/efi_thunk_64.S
+++ b/arch/x86/platform/efi/efi_thunk_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2014 Intel Corporation; author Matt Fleming
  *
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile
index 53e0235e308f..480fed21cc7d 100644
--- a/arch/x86/platform/intel-mid/device_libs/Makefile
+++ b/arch/x86/platform/intel-mid/device_libs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Family-Level Interface Shim (FLIS)
 obj-$(subst m,y,$(CONFIG_PINCTRL_MERRIFIELD)) += platform_mrfld_pinctrl.o
 # SDHCI Devices
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
index 74283875c7e8..e639e3116acf 100644
--- a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
+++ b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
@@ -62,10 +62,9 @@ static struct platform_device pb_device = {
 static int __init pb_keys_init(void)
 {
 	struct gpio_keys_button *gb = gpio_button;
-	int i, num, good = 0;
+	int i, good = 0;
 
-	num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
-	for (i = 0; i < num; i++) {
+	for (i = 0; i < ARRAY_SIZE(gpio_button); i++) {
 		gb[i].gpio = get_gpio_by_name(gb[i].desc);
 		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
 					gb[i].gpio);
diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c
index b8f562049cad..42f879b75f9b 100644
--- a/arch/x86/platform/intel-quark/imr_selftest.c
+++ b/arch/x86/platform/intel-quark/imr_selftest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * imr_selftest.c -- Intel Isolated Memory Region self-test driver
  *
diff --git a/arch/x86/platform/olpc/Makefile b/arch/x86/platform/olpc/Makefile
index fd332c533947..049f92a9379d 100644
--- a/arch/x86/platform/olpc/Makefile
+++ b/arch/x86/platform/olpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OLPC)		+= olpc.o olpc_ofw.o olpc_dt.o
 obj-$(CONFIG_OLPC_XO1_PM)		+= olpc-xo1-pm.o xo1-wakeup.o
 obj-$(CONFIG_OLPC_XO1_RTC)	+= olpc-xo1-rtc.o
diff --git a/arch/x86/platform/olpc/xo1-wakeup.S b/arch/x86/platform/olpc/xo1-wakeup.S
index 948deb289753..5fee3a2c2fd4 100644
--- a/arch/x86/platform/olpc/xo1-wakeup.S
+++ b/arch/x86/platform/olpc/xo1-wakeup.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 .text
 #include <linux/linkage.h>
 #include <asm/segment.h>
diff --git a/arch/x86/platform/uv/uv_irq.c b/arch/x86/platform/uv/uv_irq.c
index 03fc397335b7..5f6fd860820a 100644
--- a/arch/x86/platform/uv/uv_irq.c
+++ b/arch/x86/platform/uv/uv_irq.c
@@ -127,10 +127,11 @@ static void uv_domain_free(struct irq_domain *domain, unsigned int virq,
  * Re-target the irq to the specified CPU and enable the specified MMR located
  * on the specified blade to allow the sending of MSIs to the specified CPU.
  */
-static void uv_domain_activate(struct irq_domain *domain,
-			       struct irq_data *irq_data)
+static int uv_domain_activate(struct irq_domain *domain,
+			      struct irq_data *irq_data, bool early)
 {
 	uv_program_mmr(irqd_cfg(irq_data), irq_data->chip_data);
+	return 0;
 }
 
 /*
diff --git a/arch/x86/power/Makefile b/arch/x86/power/Makefile
index 05041871ac90..a4701389562c 100644
--- a/arch/x86/power/Makefile
+++ b/arch/x86/power/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD_hibernate_asm_$(BITS).o := y
 
 # __restore_processor_state() restores %gs after S3 resume and so should not
diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c
index 4d68d59f457d..84fcfde53f8f 100644
--- a/arch/x86/power/cpu.c
+++ b/arch/x86/power/cpu.c
@@ -428,7 +428,7 @@ static int msr_initialize_bdw(const struct dmi_system_id *d)
 	return msr_init_context(bdw_msr_id, ARRAY_SIZE(bdw_msr_id));
 }
 
-static struct dmi_system_id msr_save_dmi_table[] = {
+static const struct dmi_system_id msr_save_dmi_table[] = {
 	{
 	 .callback = msr_initialize_bdw,
 	 .ident = "BROADWELL BDX_EP",
diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c
index f2598d81cd55..f910c514438f 100644
--- a/arch/x86/power/hibernate_64.c
+++ b/arch/x86/power/hibernate_64.c
@@ -295,7 +295,26 @@ int arch_hibernation_header_save(void *addr, unsigned int max_size)
 		return -EOVERFLOW;
 	rdr->jump_address = (unsigned long)restore_registers;
 	rdr->jump_address_phys = __pa_symbol(restore_registers);
-	rdr->cr3 = restore_cr3;
+
+	/*
+	 * The restore code fixes up CR3 and CR4 in the following sequence:
+	 *
+	 * [in hibernation asm]
+	 * 1. CR3 <= temporary page tables
+	 * 2. CR4 <= mmu_cr4_features (from the kernel that restores us)
+	 * 3. CR3 <= rdr->cr3
+	 * 4. CR4 <= mmu_cr4_features (from us, i.e. the image kernel)
+	 * [in restore_processor_state()]
+	 * 5. CR4 <= saved CR4
+	 * 6. CR3 <= saved CR3
+	 *
+	 * Our mmu_cr4_features has CR4.PCIDE=0, and toggling
+	 * CR4.PCIDE while CR3's PCID bits are nonzero is illegal, so
+	 * rdr->cr3 needs to point to valid page tables but must not
+	 * have any of the PCID bits set.
+	 */
+	rdr->cr3 = restore_cr3 & ~CR3_PCID_MASK;
+
 	rdr->magic = RESTORE_MAGIC;
 
 	hibernation_e820_save(rdr->e820_digest);
diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S
index 1d0fa0e24070..6e56815e13a0 100644
--- a/arch/x86/power/hibernate_asm_32.S
+++ b/arch/x86/power/hibernate_asm_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This may not use any stack, nor any variable that is not "NoSave":
  *
diff --git a/arch/x86/purgatory/Makefile b/arch/x86/purgatory/Makefile
index 7dbdb780264d..2f15a2ac4209 100644
--- a/arch/x86/purgatory/Makefile
+++ b/arch/x86/purgatory/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD := y
 
 purgatory-y := purgatory.o stack.o setup-x86_$(BITS).o sha256.o entry64.o string.o
diff --git a/arch/x86/ras/Kconfig b/arch/x86/ras/Kconfig
index bb026699ad19..a9c3db125222 100644
--- a/arch/x86/ras/Kconfig
+++ b/arch/x86/ras/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config RAS_CEC
 	bool "Correctable Errors Collector"
 	depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS
diff --git a/arch/x86/realmode/init.c b/arch/x86/realmode/init.c
index 1f71980fc5e0..d10105825d57 100644
--- a/arch/x86/realmode/init.c
+++ b/arch/x86/realmode/init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/memblock.h>
@@ -63,9 +64,10 @@ static void __init setup_real_mode(void)
 	/*
 	 * If SME is active, the trampoline area will need to be in
 	 * decrypted memory in order to bring up other processors
-	 * successfully.
+	 * successfully. This is not needed for SEV.
 	 */
-	set_memory_decrypted((unsigned long)base, size >> PAGE_SHIFT);
+	if (sme_active())
+		set_memory_decrypted((unsigned long)base, size >> PAGE_SHIFT);
 
 	memcpy(base, real_mode_blob, size);
 
diff --git a/arch/x86/realmode/rm/header.S b/arch/x86/realmode/rm/header.S
index a28221d94e69..30b0d30d861a 100644
--- a/arch/x86/realmode/rm/header.S
+++ b/arch/x86/realmode/rm/header.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Real-mode blob header; this should match realmode.h and be
  * readonly; for mutable data instead add pointers into the .data
diff --git a/arch/x86/realmode/rm/realmode.h b/arch/x86/realmode/rm/realmode.h
index d74cff6350ed..c76041a35397 100644
--- a/arch/x86/realmode/rm/realmode.h
+++ b/arch/x86/realmode/rm/realmode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_X86_REALMODE_RM_REALMODE_H
 #define ARCH_X86_REALMODE_RM_REALMODE_H
 
diff --git a/arch/x86/realmode/rm/realmode.lds.S b/arch/x86/realmode/rm/realmode.lds.S
index 86b2e8d6b1f1..df8e11e26bc3 100644
--- a/arch/x86/realmode/rm/realmode.lds.S
+++ b/arch/x86/realmode/rm/realmode.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * realmode.lds.S
  *
diff --git a/arch/x86/realmode/rm/reboot.S b/arch/x86/realmode/rm/reboot.S
index d66c607bdc58..cd2f97b9623b 100644
--- a/arch/x86/realmode/rm/reboot.S
+++ b/arch/x86/realmode/rm/reboot.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 #include <asm/segment.h>
 #include <asm/page_types.h>
diff --git a/arch/x86/realmode/rm/stack.S b/arch/x86/realmode/rm/stack.S
index 867ae87adfae..8d4cb64799ea 100644
--- a/arch/x86/realmode/rm/stack.S
+++ b/arch/x86/realmode/rm/stack.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common heap and stack allocations
  */
diff --git a/arch/x86/realmode/rm/trampoline_32.S b/arch/x86/realmode/rm/trampoline_32.S
index 48ddd76bc4c3..2dd866c9e21e 100644
--- a/arch/x86/realmode/rm/trampoline_32.S
+++ b/arch/x86/realmode/rm/trampoline_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	Trampoline.S	Derived from Setup.S by Linus Torvalds
diff --git a/arch/x86/realmode/rm/trampoline_64.S b/arch/x86/realmode/rm/trampoline_64.S
index 614fd7064d0a..de53bd15df5a 100644
--- a/arch/x86/realmode/rm/trampoline_64.S
+++ b/arch/x86/realmode/rm/trampoline_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	Trampoline.S	Derived from Setup.S by Linus Torvalds
diff --git a/arch/x86/realmode/rm/trampoline_common.S b/arch/x86/realmode/rm/trampoline_common.S
index b1ecdb9692ad..7c706772ab59 100644
--- a/arch/x86/realmode/rm/trampoline_common.S
+++ b/arch/x86/realmode/rm/trampoline_common.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	.section ".rodata","a"
 	.balign	16
 tr_idt: .fill 1, 6, 0
diff --git a/arch/x86/realmode/rm/wakemain.c b/arch/x86/realmode/rm/wakemain.c
index 91405d515ec6..1d6437e6d2ba 100644
--- a/arch/x86/realmode/rm/wakemain.c
+++ b/arch/x86/realmode/rm/wakemain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "wakeup.h"
 #include "boot.h"
 
diff --git a/arch/x86/realmode/rm/wakeup.h b/arch/x86/realmode/rm/wakeup.h
index 7dd86a419f5d..0e4fd08ae447 100644
--- a/arch/x86/realmode/rm/wakeup.h
+++ b/arch/x86/realmode/rm/wakeup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for the wakeup data structure at the head of the
  * wakeup code.
diff --git a/arch/x86/realmode/rm/wakeup_asm.S b/arch/x86/realmode/rm/wakeup_asm.S
index 9e7e14797a72..05ac9c17c811 100644
--- a/arch/x86/realmode/rm/wakeup_asm.S
+++ b/arch/x86/realmode/rm/wakeup_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ACPI wakeup real mode startup stub
  */
diff --git a/arch/x86/realmode/rmpiggy.S b/arch/x86/realmode/rmpiggy.S
index 204c6ece0e97..c078dba40cef 100644
--- a/arch/x86/realmode/rmpiggy.S
+++ b/arch/x86/realmode/rmpiggy.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Wrapper script for the realmode binary as a transport object
  * before copying to low memory.
diff --git a/arch/x86/tools/Makefile b/arch/x86/tools/Makefile
index 604a37efd4d5..972b8e8d939c 100644
--- a/arch/x86/tools/Makefile
+++ b/arch/x86/tools/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 PHONY += posttest
 
 ifeq ($(KBUILD_VERBOSE),1)
diff --git a/arch/x86/tools/distill.awk b/arch/x86/tools/distill.awk
index c13c0ee48ab4..e0edeccc1429 100644
--- a/arch/x86/tools/distill.awk
+++ b/arch/x86/tools/distill.awk
@@ -1,4 +1,5 @@
 #!/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 # Usage: objdump -d a.out | awk -f distill.awk | ./test_get_len
 # Distills the disassembly as follows:
 # - Removes all lines except the disassembled instructions.
diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk
index a3d2c62fd805..b02a36b2c14f 100644
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -1,4 +1,5 @@
 #!/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 # gen-insn-attr-x86.awk: Instruction attribute table generator
 # Written by Masami Hiramatsu <mhiramat@redhat.com>
 #
diff --git a/arch/x86/tools/relocs.c b/arch/x86/tools/relocs.c
index 73eb7fd4aec4..5d73c443e778 100644
--- a/arch/x86/tools/relocs.c
+++ b/arch/x86/tools/relocs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* This is included from relocs_32/64.c */
 
 #define ElfW(type)		_ElfW(ELF_BITS, type)
diff --git a/arch/x86/tools/relocs.h b/arch/x86/tools/relocs.h
index 1d23bf953a4a..43c83c0fd22c 100644
--- a/arch/x86/tools/relocs.h
+++ b/arch/x86/tools/relocs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef RELOCS_H
 #define RELOCS_H
 
diff --git a/arch/x86/tools/relocs_32.c b/arch/x86/tools/relocs_32.c
index b2ade2bb4162..9442ff78be83 100644
--- a/arch/x86/tools/relocs_32.c
+++ b/arch/x86/tools/relocs_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "relocs.h"
 
 #define ELF_BITS 32
diff --git a/arch/x86/tools/relocs_64.c b/arch/x86/tools/relocs_64.c
index 56b61b743c4c..9029cb619cb1 100644
--- a/arch/x86/tools/relocs_64.c
+++ b/arch/x86/tools/relocs_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "relocs.h"
 
 #define ELF_BITS 64
diff --git a/arch/x86/tools/relocs_common.c b/arch/x86/tools/relocs_common.c
index acab636bcb34..6634352a20bc 100644
--- a/arch/x86/tools/relocs_common.c
+++ b/arch/x86/tools/relocs_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "relocs.h"
 
 void die(char *fmt, ...)
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index ed56a1c4ae73..13ed827c7c66 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 mainmenu "User Mode Linux/$SUBARCH $KERNELVERSION Kernel Configuration"
 
 source "arch/um/Kconfig.common"
diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile
index 46cbbfe03285..c2d3d7c51e9e 100644
--- a/arch/x86/um/Makefile
+++ b/arch/x86/um/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 #
diff --git a/arch/x86/um/asm/arch_hweight.h b/arch/x86/um/asm/arch_hweight.h
index c656cf443f4a..0d2d5fbb3a39 100644
--- a/arch/x86/um/asm/arch_hweight.h
+++ b/arch/x86/um/asm/arch_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UM_HWEIGHT_H
 #define _ASM_UM_HWEIGHT_H
 
diff --git a/arch/x86/um/asm/barrier.h b/arch/x86/um/asm/barrier.h
index 00c319048d52..b7d73400ea29 100644
--- a/arch/x86/um/asm/barrier.h
+++ b/arch/x86/um/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_UM_BARRIER_H_
 #define _ASM_UM_BARRIER_H_
 
diff --git a/arch/x86/um/asm/checksum.h b/arch/x86/um/asm/checksum.h
index 54d96f1e3594..2a56cac64687 100644
--- a/arch/x86/um/asm/checksum.h
+++ b/arch/x86/um/asm/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_CHECKSUM_H
 #define __UM_CHECKSUM_H
 
diff --git a/arch/x86/um/asm/desc.h b/arch/x86/um/asm/desc.h
index 4ec34a51b62c..34de4e93d945 100644
--- a/arch/x86/um/asm/desc.h
+++ b/arch/x86/um/asm/desc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_DESC_H
 #define __UM_DESC_H
 
diff --git a/arch/x86/um/asm/module.h b/arch/x86/um/asm/module.h
index 61af80e932eb..a3b061d66082 100644
--- a/arch/x86/um/asm/module.h
+++ b/arch/x86/um/asm/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_MODULE_H
 #define __UM_MODULE_H
 
diff --git a/arch/x86/um/asm/processor.h b/arch/x86/um/asm/processor.h
index c77db2288982..593d5f3902bd 100644
--- a/arch/x86/um/asm/processor.h
+++ b/arch/x86/um/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_PROCESSOR_H
 #define __UM_PROCESSOR_H
 
diff --git a/arch/x86/um/asm/ptrace.h b/arch/x86/um/asm/ptrace.h
index b291ca5cf66b..83822fd42204 100644
--- a/arch/x86/um/asm/ptrace.h
+++ b/arch/x86/um/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_X86_PTRACE_H
 #define __UM_X86_PTRACE_H
 
diff --git a/arch/x86/um/asm/segment.h b/arch/x86/um/asm/segment.h
index 41dd5e1f3cd7..453db377150d 100644
--- a/arch/x86/um/asm/segment.h
+++ b/arch/x86/um/asm/segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_SEGMENT_H
 #define __UM_SEGMENT_H
 
diff --git a/arch/x86/um/asm/syscall.h b/arch/x86/um/asm/syscall.h
index 11ab90dc5f14..ef898af102d1 100644
--- a/arch/x86/um/asm/syscall.h
+++ b/arch/x86/um/asm/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_ASM_SYSCALL_H
 #define __UM_ASM_SYSCALL_H
 
diff --git a/arch/x86/um/elfcore.c b/arch/x86/um/elfcore.c
index 7bb89a27a5e4..48a3eb09d951 100644
--- a/arch/x86/um/elfcore.c
+++ b/arch/x86/um/elfcore.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/elf.h>
 #include <linux/coredump.h>
 #include <linux/fs.h>
diff --git a/arch/x86/um/ldt.c b/arch/x86/um/ldt.c
index 836a1eb5df43..3ee234b6234d 100644
--- a/arch/x86/um/ldt.c
+++ b/arch/x86/um/ldt.c
@@ -6,6 +6,7 @@
 #include <linux/mm.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/syscalls.h>
 #include <linux/uaccess.h>
 #include <asm/unistd.h>
 #include <os.h>
@@ -369,7 +370,9 @@ void free_ldt(struct mm_context *mm)
 	mm->arch.ldt.entry_count = 0;
 }
 
-int sys_modify_ldt(int func, void __user *ptr, unsigned long bytecount)
+SYSCALL_DEFINE3(modify_ldt, int , func , void __user * , ptr ,
+		unsigned long , bytecount)
 {
-	return do_modify_ldt_skas(func, ptr, bytecount);
+	/* See non-um modify_ldt() for why we do this cast */
+	return (unsigned int)do_modify_ldt_skas(func, ptr, bytecount);
 }
diff --git a/arch/x86/um/mem_64.c b/arch/x86/um/mem_64.c
index 7642e2e2aa61..c027e93d1002 100644
--- a/arch/x86/um/mem_64.c
+++ b/arch/x86/um/mem_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <asm/elf.h>
 
diff --git a/arch/x86/um/os-Linux/mcontext.c b/arch/x86/um/os-Linux/mcontext.c
index 1d33d72c6284..49c3744cac37 100644
--- a/arch/x86/um/os-Linux/mcontext.c
+++ b/arch/x86/um/os-Linux/mcontext.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/ucontext.h>
 #define __FRAME_OFFSETS
 #include <asm/ptrace.h>
diff --git a/arch/x86/um/os-Linux/registers.c b/arch/x86/um/os-Linux/registers.c
index 28775f55bde2..3c423dfcd78b 100644
--- a/arch/x86/um/os-Linux/registers.c
+++ b/arch/x86/um/os-Linux/registers.c
@@ -5,6 +5,7 @@
  */
 
 #include <errno.h>
+#include <stdlib.h>
 #include <sys/ptrace.h>
 #ifdef __i386__
 #include <sys/user.h>
@@ -31,7 +32,7 @@ int save_fp_registers(int pid, unsigned long *fp_regs)
 
 	if (have_xstate_support) {
 		iov.iov_base = fp_regs;
-		iov.iov_len = sizeof(struct _xstate);
+		iov.iov_len = FP_SIZE * sizeof(unsigned long);
 		if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
 			return -errno;
 		return 0;
@@ -51,10 +52,9 @@ int restore_fp_registers(int pid, unsigned long *fp_regs)
 {
 #ifdef PTRACE_SETREGSET
 	struct iovec iov;
-
 	if (have_xstate_support) {
 		iov.iov_base = fp_regs;
-		iov.iov_len = sizeof(struct _xstate);
+		iov.iov_len = FP_SIZE * sizeof(unsigned long);
 		if (ptrace(PTRACE_SETREGSET, pid, NT_X86_XSTATE, &iov) < 0)
 			return -errno;
 		return 0;
@@ -125,13 +125,19 @@ int put_fp_registers(int pid, unsigned long *regs)
 void arch_init_registers(int pid)
 {
 #ifdef PTRACE_GETREGSET
-	struct _xstate fp_regs;
+	void * fp_regs;
 	struct iovec iov;
 
-	iov.iov_base = &fp_regs;
-	iov.iov_len = sizeof(struct _xstate);
+	fp_regs = malloc(FP_SIZE * sizeof(unsigned long));
+	if(fp_regs == NULL)
+		return;
+
+	iov.iov_base = fp_regs;
+	iov.iov_len = FP_SIZE * sizeof(unsigned long);
 	if (ptrace(PTRACE_GETREGSET, pid, NT_X86_XSTATE, &iov) == 0)
 		have_xstate_support = 1;
+
+	free(fp_regs);
 #endif
 }
 #endif
diff --git a/arch/x86/um/os-Linux/task_size.c b/arch/x86/um/os-Linux/task_size.c
index 5adb6a2fd117..e62174638f00 100644
--- a/arch/x86/um/os-Linux/task_size.c
+++ b/arch/x86/um/os-Linux/task_size.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
diff --git a/arch/x86/um/os-Linux/tls.c b/arch/x86/um/os-Linux/tls.c
index 9d94b3b76c74..3e1b1bf6acbc 100644
--- a/arch/x86/um/os-Linux/tls.c
+++ b/arch/x86/um/os-Linux/tls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <linux/unistd.h>
 
@@ -37,7 +38,7 @@ void check_host_supports_tls(int *supports_tls, int *tls_min)
 				continue;
 			else if (errno == ENOSYS)
 				*supports_tls = 0;
-				return;
+			return;
 		}
 	}
 
diff --git a/arch/x86/um/setjmp_32.S b/arch/x86/um/setjmp_32.S
index 39053192918d..62eaf8c80e04 100644
--- a/arch/x86/um/setjmp_32.S
+++ b/arch/x86/um/setjmp_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #
 # arch/i386/setjmp.S
 #
diff --git a/arch/x86/um/setjmp_64.S b/arch/x86/um/setjmp_64.S
index c56942e1a38c..1b5d40d4ff46 100644
--- a/arch/x86/um/setjmp_64.S
+++ b/arch/x86/um/setjmp_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #
 # arch/x86_64/setjmp.S
 #
diff --git a/arch/x86/um/shared/sysdep/archsetjmp.h b/arch/x86/um/shared/sysdep/archsetjmp.h
index ff7766d28226..166cedbab926 100644
--- a/arch/x86/um/shared/sysdep/archsetjmp.h
+++ b/arch/x86/um/shared/sysdep/archsetjmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __i386__
 #include "archsetjmp_32.h"
 #else
diff --git a/arch/x86/um/shared/sysdep/archsetjmp_32.h b/arch/x86/um/shared/sysdep/archsetjmp_32.h
index 0f312085ce1d..fb08f2576438 100644
--- a/arch/x86/um/shared/sysdep/archsetjmp_32.h
+++ b/arch/x86/um/shared/sysdep/archsetjmp_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/um/include/sysdep-i386/archsetjmp.h
  */
diff --git a/arch/x86/um/shared/sysdep/archsetjmp_64.h b/arch/x86/um/shared/sysdep/archsetjmp_64.h
index 2af8f12ca161..9b499e457ba0 100644
--- a/arch/x86/um/shared/sysdep/archsetjmp_64.h
+++ b/arch/x86/um/shared/sysdep/archsetjmp_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * arch/um/include/sysdep-x86_64/archsetjmp.h
  */
diff --git a/arch/x86/um/shared/sysdep/faultinfo.h b/arch/x86/um/shared/sysdep/faultinfo.h
index 862ecb1c7781..4390803e07a1 100644
--- a/arch/x86/um/shared/sysdep/faultinfo.h
+++ b/arch/x86/um/shared/sysdep/faultinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __i386__
 #include "faultinfo_32.h"
 #else
diff --git a/arch/x86/um/shared/sysdep/kernel-offsets.h b/arch/x86/um/shared/sysdep/kernel-offsets.h
index 7e1d35b6ad5c..a004bffb7b8d 100644
--- a/arch/x86/um/shared/sysdep/kernel-offsets.h
+++ b/arch/x86/um/shared/sysdep/kernel-offsets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/stddef.h>
 #include <linux/sched.h>
 #include <linux/elf.h>
diff --git a/arch/x86/um/shared/sysdep/ptrace.h b/arch/x86/um/shared/sysdep/ptrace.h
index eb9356904ad3..6ca4ecabc55b 100644
--- a/arch/x86/um/shared/sysdep/ptrace.h
+++ b/arch/x86/um/shared/sysdep/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SYSDEP_X86_PTRACE_H
 #define __SYSDEP_X86_PTRACE_H
 
diff --git a/arch/x86/um/shared/sysdep/ptrace_user.h b/arch/x86/um/shared/sysdep/ptrace_user.h
index 16cd6b5e71f7..44782bbad41e 100644
--- a/arch/x86/um/shared/sysdep/ptrace_user.h
+++ b/arch/x86/um/shared/sysdep/ptrace_user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <generated/user_constants.h>
 
 #define PT_OFFSET(r) ((r) * sizeof(long))
diff --git a/arch/x86/um/shared/sysdep/stub.h b/arch/x86/um/shared/sysdep/stub.h
index 3f55e5bd3cec..ce0ca46ad383 100644
--- a/arch/x86/um/shared/sysdep/stub.h
+++ b/arch/x86/um/shared/sysdep/stub.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm/unistd.h>
 #include <sys/mman.h>
 #include <signal.h>
diff --git a/arch/x86/um/shared/sysdep/syscalls.h b/arch/x86/um/shared/sysdep/syscalls.h
index bd9a89b67e41..b2060ac707f0 100644
--- a/arch/x86/um/shared/sysdep/syscalls.h
+++ b/arch/x86/um/shared/sysdep/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __i386__
 #include "syscalls_32.h"
 #else
diff --git a/arch/x86/um/shared/sysdep/tls.h b/arch/x86/um/shared/sysdep/tls.h
index a682db13df23..b968016aa379 100644
--- a/arch/x86/um/shared/sysdep/tls.h
+++ b/arch/x86/um/shared/sysdep/tls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SYSDEP_TLS_H
 #define _SYSDEP_TLS_H
 
diff --git a/arch/x86/um/stub_32.S b/arch/x86/um/stub_32.S
index 98816804e131..a193e88536a9 100644
--- a/arch/x86/um/stub_32.S
+++ b/arch/x86/um/stub_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <as-layout.h>
 
 .section .__syscall_stub, "ax"
diff --git a/arch/x86/um/stub_64.S b/arch/x86/um/stub_64.S
index ba914b3b8cc4..8a95c5b2eaf9 100644
--- a/arch/x86/um/stub_64.S
+++ b/arch/x86/um/stub_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <as-layout.h>
 
 .section .__syscall_stub, "ax"
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c
index bfce503dffae..9649b5ad2ca2 100644
--- a/arch/x86/um/sys_call_table_32.c
+++ b/arch/x86/um/sys_call_table_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * System call table for UML/i386, copied from arch/x86/kernel/syscall_*.c
  * with some changes for UML.
diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c
index f306413d3eb6..c8bc7fb8cbd6 100644
--- a/arch/x86/um/sys_call_table_64.c
+++ b/arch/x86/um/sys_call_table_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * System call table for UML/x86-64, copied from arch/x86/kernel/syscall_*.c
  * with some changes for UML.
diff --git a/arch/x86/um/syscalls_32.c b/arch/x86/um/syscalls_32.c
index 627d68836b16..5c65254c8f35 100644
--- a/arch/x86/um/syscalls_32.c
+++ b/arch/x86/um/syscalls_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/syscalls.h>
 #include <os.h>
 
diff --git a/arch/x86/um/tls_64.c b/arch/x86/um/tls_64.c
index 3ad714373d7f..3a621e0d3925 100644
--- a/arch/x86/um/tls_64.c
+++ b/arch/x86/um/tls_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched.h>
 #include <asm/ptrace-abi.h>
 
diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c
index 02250b2633b8..5b37b7f952dd 100644
--- a/arch/x86/um/user-offsets.c
+++ b/arch/x86/um/user-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stddef.h>
 #include <signal.h>
@@ -51,7 +52,7 @@ void foo(void)
 	DEFINE(HOST_ORIG_AX, ORIG_EAX);
 #else
 #ifdef FP_XSTATE_MAGIC1
-	DEFINE(HOST_FP_SIZE, sizeof(struct _xstate) / sizeof(unsigned long));
+	DEFINE_LONGS(HOST_FP_SIZE, 2696);
 #else
 	DEFINE(HOST_FP_SIZE, sizeof(struct _fpstate) / sizeof(unsigned long));
 #endif
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index 329406224330..10003359e633 100644
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Building vDSO images for x86.
 #
diff --git a/arch/x86/um/vdso/checkundef.sh b/arch/x86/um/vdso/checkundef.sh
index 7ee90a9b549d..8e3ea6bb956f 100644
--- a/arch/x86/um/vdso/checkundef.sh
+++ b/arch/x86/um/vdso/checkundef.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 nm="$1"
 file="$2"
 $nm "$file" | grep '^ *U' > /dev/null 2>&1
diff --git a/arch/x86/um/vdso/vdso-layout.lds.S b/arch/x86/um/vdso/vdso-layout.lds.S
index 634a2cf62046..439b790df18f 100644
--- a/arch/x86/um/vdso/vdso-layout.lds.S
+++ b/arch/x86/um/vdso/vdso-layout.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for vDSO.  This is an ELF shared object prelinked to
  * its virtual address, and with only one read-only segment.
diff --git a/arch/x86/um/vdso/vdso.S b/arch/x86/um/vdso/vdso.S
index 1cb468adacbb..a4a3870dc059 100644
--- a/arch/x86/um/vdso/vdso.S
+++ b/arch/x86/um/vdso/vdso.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 
 __INITDATA
diff --git a/arch/x86/um/vdso/vdso.lds.S b/arch/x86/um/vdso/vdso.lds.S
index b96b2677cad8..73c508587a98 100644
--- a/arch/x86/um/vdso/vdso.lds.S
+++ b/arch/x86/um/vdso/vdso.lds.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linker script for 64-bit vDSO.
  * We #include the file to define the layout details.
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 1ecd419811a2..f605825a04ab 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # This Kconfig describes xen options
 #
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index bced7a369a11..d83cb5478f54 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD_xen-asm_$(BITS).o := y
 OBJECT_FILES_NON_STANDARD_xen-pvh.o := y
 
diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index b5e48da7fbff..6b830d4cb4c8 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 
 #include <asm/x86_init.h>
@@ -30,7 +31,7 @@ static unsigned int xen_io_apic_read(unsigned apic, unsigned reg)
 	return 0xfd;
 }
 
-static unsigned long xen_set_apic_id(unsigned int x)
+static u32 xen_set_apic_id(unsigned int x)
 {
 	WARN_ON(1);
 	return x;
@@ -160,12 +161,10 @@ static struct apic xen_pv_apic = {
 	/* .irq_delivery_mode - used in native_compose_msi_msg only */
 	/* .irq_dest_mode     - used in native_compose_msi_msg only */
 
-	.target_cpus			= default_target_cpus,
 	.disable_esr			= 0,
 	/* .dest_logical      -  default_send_IPI_ use it but we use our own. */
 	.check_apicid_used		= default_check_apicid_used, /* Used on 32-bit */
 
-	.vector_allocation_domain	= flat_vector_allocation_domain,
 	.init_apic_ldr			= xen_noop, /* setup_local_APIC calls it */
 
 	.ioapic_phys_id_map		= default_ioapic_phys_id_map, /* Used on 32-bit */
@@ -178,7 +177,7 @@ static struct apic xen_pv_apic = {
 	.get_apic_id 			= xen_get_apic_id,
 	.set_apic_id 			= xen_set_apic_id, /* Can be NULL on 32-bit. */
 
-	.cpu_mask_to_apicid		= flat_cpu_mask_to_apicid,
+	.calc_dest_apicid		= apic_flat_calc_apicid,
 
 #ifdef CONFIG_SMP
 	.send_IPI_mask 			= xen_send_IPI_mask,
diff --git a/arch/x86/xen/debugfs.c b/arch/x86/xen/debugfs.c
index 1daff5545c0a..13da87918b4f 100644
--- a/arch/x86/xen/debugfs.c
+++ b/arch/x86/xen/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/debugfs.h>
 #include <linux/slab.h>
diff --git a/arch/x86/xen/debugfs.h b/arch/x86/xen/debugfs.h
index 12ebf3325c7b..6b813ad1091c 100644
--- a/arch/x86/xen/debugfs.h
+++ b/arch/x86/xen/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_DEBUGFS_H
 #define _XEN_DEBUGFS_H
 
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 0e7ef69e8531..d669e9d89001 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -93,11 +93,11 @@ int xen_cpuhp_setup(int (*cpu_up_prepare_cb)(unsigned int),
 	int rc;
 
 	rc = cpuhp_setup_state_nocalls(CPUHP_XEN_PREPARE,
-				       "x86/xen/hvm_guest:prepare",
+				       "x86/xen/guest:prepare",
 				       cpu_up_prepare_cb, cpu_dead_cb);
 	if (rc >= 0) {
 		rc = cpuhp_setup_state_nocalls(CPUHP_AP_ONLINE_DYN,
-					       "x86/xen/hvm_guest:online",
+					       "x86/xen/guest:online",
 					       xen_cpu_up_online, NULL);
 		if (rc < 0)
 			cpuhp_remove_state_nocalls(CPUHP_XEN_PREPARE);
diff --git a/arch/x86/xen/enlighten_hvm.c b/arch/x86/xen/enlighten_hvm.c
index de503c225ae1..826898701045 100644
--- a/arch/x86/xen/enlighten_hvm.c
+++ b/arch/x86/xen/enlighten_hvm.c
@@ -1,3 +1,4 @@
+#include <linux/acpi.h>
 #include <linux/cpu.h>
 #include <linux/kexec.h>
 #include <linux/memblock.h>
@@ -188,8 +189,6 @@ static void __init xen_hvm_guest_init(void)
 	xen_hvm_init_time_ops();
 	xen_hvm_init_mmu_ops();
 
-	if (xen_pvh_domain())
-		machine_ops.emergency_restart = xen_emergency_restart;
 #ifdef CONFIG_KEXEC_CORE
 	machine_ops.shutdown = xen_hvm_shutdown;
 	machine_ops.crash_shutdown = xen_hvm_crash_shutdown;
@@ -226,12 +225,33 @@ static uint32_t __init xen_platform_hvm(void)
 	return xen_cpuid_base();
 }
 
-const struct hypervisor_x86 x86_hyper_xen_hvm = {
+static __init void xen_hvm_guest_late_init(void)
+{
+#ifdef CONFIG_XEN_PVH
+	/* Test for PVH domain (PVH boot path taken overrides ACPI flags). */
+	if (!xen_pvh &&
+	    (x86_platform.legacy.rtc || !x86_platform.legacy.no_vga))
+		return;
+
+	/* PVH detected. */
+	xen_pvh = true;
+
+	/* Make sure we don't fall back to (default) ACPI_IRQ_MODEL_PIC. */
+	if (!nr_ioapics && acpi_irq_model == ACPI_IRQ_MODEL_PIC)
+		acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
+
+	machine_ops.emergency_restart = xen_emergency_restart;
+	pv_info.name = "Xen PVH";
+#endif
+}
+
+const __initconst struct hypervisor_x86 x86_hyper_xen_hvm = {
 	.name                   = "Xen HVM",
 	.detect                 = xen_platform_hvm,
-	.init_platform          = xen_hvm_guest_init,
-	.pin_vcpu               = xen_pin_vcpu,
-	.x2apic_available       = xen_x2apic_para_available,
-	.init_mem_mapping	= xen_hvm_init_mem_mapping,
+	.type			= X86_HYPER_XEN_HVM,
+	.init.init_platform     = xen_hvm_guest_init,
+	.init.x2apic_available  = xen_x2apic_para_available,
+	.init.init_mem_mapping	= xen_hvm_init_mem_mapping,
+	.init.guest_late_init	= xen_hvm_guest_late_init,
+	.runtime.pin_vcpu       = xen_pin_vcpu,
 };
-EXPORT_SYMBOL(x86_hyper_xen_hvm);
diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c
index ae2a2e2d6362..5b2b3f3f6531 100644
--- a/arch/x86/xen/enlighten_pv.c
+++ b/arch/x86/xen/enlighten_pv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Core of Xen paravirt_ops implementation.
  *
@@ -600,7 +601,7 @@ static struct trap_array_entry trap_array[] = {
 #ifdef CONFIG_X86_MCE
 	{ machine_check,               xen_machine_check,               true },
 #endif
-	{ nmi,                         xen_nmi,                         true },
+	{ nmi,                         xen_xennmi,                      true },
 	{ overflow,                    xen_overflow,                    false },
 #ifdef CONFIG_IA32_EMULATION
 	{ entry_INT80_compat,          xen_entry_INT80_compat,          false },
@@ -810,15 +811,14 @@ static void __init xen_write_gdt_entry_boot(struct desc_struct *dt, int entry,
 	}
 }
 
-static void xen_load_sp0(struct tss_struct *tss,
-			 struct thread_struct *thread)
+static void xen_load_sp0(unsigned long sp0)
 {
 	struct multicall_space mcs;
 
 	mcs = xen_mc_entry(0);
-	MULTI_stack_switch(mcs.mc, __KERNEL_DS, thread->sp0);
+	MULTI_stack_switch(mcs.mc, __KERNEL_DS, sp0);
 	xen_mc_issue(PARAVIRT_LAZY_CPU);
-	tss->x86_tss.sp0 = thread->sp0;
+	this_cpu_write(cpu_tss.x86_tss.sp0, sp0);
 }
 
 void xen_set_iopl_mask(unsigned mask)
@@ -1038,7 +1038,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
 	.read_cr0 = xen_read_cr0,
 	.write_cr0 = xen_write_cr0,
 
-	.read_cr4 = native_read_cr4,
 	.write_cr4 = xen_write_cr4,
 
 #ifdef CONFIG_X86_64
@@ -1073,7 +1072,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = {
 	.alloc_ldt = xen_alloc_ldt,
 	.free_ldt = xen_free_ldt,
 
-	.store_idt = native_store_idt,
 	.store_tr = xen_store_tr,
 
 	.write_ldt_entry = xen_write_ldt_entry,
@@ -1232,6 +1230,7 @@ asmlinkage __visible void __init xen_start_kernel(void)
 	x86_platform.get_nmi_reason = xen_get_nmi_reason;
 
 	x86_init.resources.memory_setup = xen_memory_setup;
+	x86_init.irqs.intr_mode_init	= x86_init_noop;
 	x86_init.oem.arch_setup = xen_arch_setup;
 	x86_init.oem.banner = xen_banner;
 
@@ -1461,9 +1460,9 @@ static uint32_t __init xen_platform_pv(void)
 	return 0;
 }
 
-const struct hypervisor_x86 x86_hyper_xen_pv = {
+const __initconst struct hypervisor_x86 x86_hyper_xen_pv = {
 	.name                   = "Xen PV",
 	.detect                 = xen_platform_pv,
-	.pin_vcpu               = xen_pin_vcpu,
+	.type			= X86_HYPER_XEN_PV,
+	.runtime.pin_vcpu       = xen_pin_vcpu,
 };
-EXPORT_SYMBOL(x86_hyper_xen_pv);
diff --git a/arch/x86/xen/enlighten_pvh.c b/arch/x86/xen/enlighten_pvh.c
index 98ab17673454..436c4f003e17 100644
--- a/arch/x86/xen/enlighten_pvh.c
+++ b/arch/x86/xen/enlighten_pvh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/acpi.h>
 
 #include <xen/hvc-console.h>
@@ -24,13 +25,6 @@ struct boot_params pvh_bootparams __attribute__((section(".data")));
 struct hvm_start_info pvh_start_info;
 unsigned int pvh_start_info_sz = sizeof(pvh_start_info);
 
-static void xen_pvh_arch_setup(void)
-{
-	/* Make sure we don't fall back to (default) ACPI_IRQ_MODEL_PIC. */
-	if (nr_ioapics == 0)
-		acpi_irq_model = ACPI_IRQ_MODEL_PLATFORM;
-}
-
 static void __init init_pvh_bootparams(void)
 {
 	struct xen_memory_map memmap;
@@ -101,6 +95,4 @@ void __init xen_prepare_pvh(void)
 	wrmsr_safe(msr, (u32)pfn, (u32)(pfn >> 32));
 
 	init_pvh_bootparams();
-
-	x86_init.oem.arch_setup = xen_pvh_arch_setup;
 }
diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c
index d4eff5676cfa..74179852e46c 100644
--- a/arch/x86/xen/irq.c
+++ b/arch/x86/xen/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/hardirq.h>
 
 #include <asm/x86_init.h>
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index 3fe2b3292915..a7e47cf7ec6c 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_MMU_H
 
 #include <linux/linkage.h>
diff --git a/arch/x86/xen/mmu_hvm.c b/arch/x86/xen/mmu_hvm.c
index 1c57f1cd545c..2cfcfe4f6b2a 100644
--- a/arch/x86/xen/mmu_hvm.c
+++ b/arch/x86/xen/mmu_hvm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/crash_dump.h>
 
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 6b983b300666..2ccdaba31a07 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -449,7 +449,7 @@ __visible pmd_t xen_make_pmd(pmdval_t pmd)
 }
 PV_CALLEE_SAVE_REGS_THUNK(xen_make_pmd);
 
-#if CONFIG_PGTABLE_LEVELS == 4
+#ifdef CONFIG_X86_64
 __visible pudval_t xen_pud_val(pud_t pud)
 {
 	return pte_mfn_to_pfn(pud.pud);
@@ -538,7 +538,7 @@ static void xen_set_p4d(p4d_t *ptr, p4d_t val)
 
 	xen_mc_issue(PARAVIRT_LAZY_MMU);
 }
-#endif	/* CONFIG_PGTABLE_LEVELS == 4 */
+#endif	/* CONFIG_X86_64 */
 
 static int xen_pmd_walk(struct mm_struct *mm, pmd_t *pmd,
 		int (*func)(struct mm_struct *mm, struct page *, enum pt_level),
@@ -580,21 +580,17 @@ static int xen_p4d_walk(struct mm_struct *mm, p4d_t *p4d,
 		int (*func)(struct mm_struct *mm, struct page *, enum pt_level),
 		bool last, unsigned long limit)
 {
-	int i, nr, flush = 0;
+	int flush = 0;
+	pud_t *pud;
 
-	nr = last ? p4d_index(limit) + 1 : PTRS_PER_P4D;
-	for (i = 0; i < nr; i++) {
-		pud_t *pud;
 
-		if (p4d_none(p4d[i]))
-			continue;
+	if (p4d_none(*p4d))
+		return flush;
 
-		pud = pud_offset(&p4d[i], 0);
-		if (PTRS_PER_PUD > 1)
-			flush |= (*func)(mm, virt_to_page(pud), PT_PUD);
-		flush |= xen_pud_walk(mm, pud, func,
-				last && i == nr - 1, limit);
-	}
+	pud = pud_offset(p4d, 0);
+	if (PTRS_PER_PUD > 1)
+		flush |= (*func)(mm, virt_to_page(pud), PT_PUD);
+	flush |= xen_pud_walk(mm, pud, func, last, limit);
 	return flush;
 }
 
@@ -644,8 +640,6 @@ static int __xen_pgd_walk(struct mm_struct *mm, pgd_t *pgd,
 			continue;
 
 		p4d = p4d_offset(&pgd[i], 0);
-		if (PTRS_PER_P4D > 1)
-			flush |= (*func)(mm, virt_to_page(p4d), PT_P4D);
 		flush |= xen_p4d_walk(mm, p4d, func, i == nr - 1, limit);
 	}
 
@@ -1176,22 +1170,14 @@ static void __init xen_cleanmfnmap(unsigned long vaddr)
 {
 	pgd_t *pgd;
 	p4d_t *p4d;
-	unsigned int i;
 	bool unpin;
 
 	unpin = (vaddr == 2 * PGDIR_SIZE);
 	vaddr &= PMD_MASK;
 	pgd = pgd_offset_k(vaddr);
 	p4d = p4d_offset(pgd, 0);
-	for (i = 0; i < PTRS_PER_P4D; i++) {
-		if (p4d_none(p4d[i]))
-			continue;
-		xen_cleanmfnmap_p4d(p4d + i, unpin);
-	}
-	if (IS_ENABLED(CONFIG_X86_5LEVEL)) {
-		set_pgd(pgd, __pgd(0));
-		xen_cleanmfnmap_free_pgtbl(p4d, unpin);
-	}
+	if (!p4d_none(*p4d))
+		xen_cleanmfnmap_p4d(p4d, unpin);
 }
 
 static void __init xen_pagetable_p2m_free(void)
@@ -1238,21 +1224,16 @@ static void __init xen_pagetable_cleanhighmap(void)
 	 * from _brk_limit way up to the max_pfn_mapped (which is the end of
 	 * the ramdisk). We continue on, erasing PMD entries that point to page
 	 * tables - do note that they are accessible at this stage via __va.
-	 * For good measure we also round up to the PMD - which means that if
+	 * As Xen is aligning the memory end to a 4MB boundary, for good
+	 * measure we also round up to PMD_SIZE * 2 - which means that if
 	 * anybody is using __ka address to the initial boot-stack - and try
 	 * to use it - they are going to crash. The xen_start_info has been
 	 * taken care of already in xen_setup_kernel_pagetable. */
 	addr = xen_start_info->pt_base;
-	size = roundup(xen_start_info->nr_pt_frames * PAGE_SIZE, PMD_SIZE);
+	size = xen_start_info->nr_pt_frames * PAGE_SIZE;
 
-	xen_cleanhighmap(addr, addr + size);
+	xen_cleanhighmap(addr, roundup(addr + size, PMD_SIZE * 2));
 	xen_start_info->pt_base = (unsigned long)__va(__pa(xen_start_info->pt_base));
-#ifdef DEBUG
-	/* This is superfluous and is not necessary, but you know what
-	 * lets do it. The MODULES_VADDR -> MODULES_END should be clear of
-	 * anything at this stage. */
-	xen_cleanhighmap(MODULES_VADDR, roundup(MODULES_VADDR, PUD_SIZE) - 1);
-#endif
 }
 #endif
 
@@ -1697,7 +1678,7 @@ static void xen_release_pmd(unsigned long pfn)
 	xen_release_ptpage(pfn, PT_PMD);
 }
 
-#if CONFIG_PGTABLE_LEVELS >= 4
+#ifdef CONFIG_X86_64
 static void xen_alloc_pud(struct mm_struct *mm, unsigned long pfn)
 {
 	xen_alloc_ptpage(mm, pfn, PT_PUD);
@@ -2034,13 +2015,12 @@ static phys_addr_t __init xen_early_virt_to_phys(unsigned long vaddr)
  */
 void __init xen_relocate_p2m(void)
 {
-	phys_addr_t size, new_area, pt_phys, pmd_phys, pud_phys, p4d_phys;
+	phys_addr_t size, new_area, pt_phys, pmd_phys, pud_phys;
 	unsigned long p2m_pfn, p2m_pfn_end, n_frames, pfn, pfn_end;
-	int n_pte, n_pt, n_pmd, n_pud, n_p4d, idx_pte, idx_pt, idx_pmd, idx_pud, idx_p4d;
+	int n_pte, n_pt, n_pmd, n_pud, idx_pte, idx_pt, idx_pmd, idx_pud;
 	pte_t *pt;
 	pmd_t *pmd;
 	pud_t *pud;
-	p4d_t *p4d = NULL;
 	pgd_t *pgd;
 	unsigned long *new_p2m;
 	int save_pud;
@@ -2050,11 +2030,7 @@ void __init xen_relocate_p2m(void)
 	n_pt = roundup(size, PMD_SIZE) >> PMD_SHIFT;
 	n_pmd = roundup(size, PUD_SIZE) >> PUD_SHIFT;
 	n_pud = roundup(size, P4D_SIZE) >> P4D_SHIFT;
-	if (PTRS_PER_P4D > 1)
-		n_p4d = roundup(size, PGDIR_SIZE) >> PGDIR_SHIFT;
-	else
-		n_p4d = 0;
-	n_frames = n_pte + n_pt + n_pmd + n_pud + n_p4d;
+	n_frames = n_pte + n_pt + n_pmd + n_pud;
 
 	new_area = xen_find_free_area(PFN_PHYS(n_frames));
 	if (!new_area) {
@@ -2070,76 +2046,56 @@ void __init xen_relocate_p2m(void)
 	 * To avoid any possible virtual address collision, just use
 	 * 2 * PUD_SIZE for the new area.
 	 */
-	p4d_phys = new_area;
-	pud_phys = p4d_phys + PFN_PHYS(n_p4d);
+	pud_phys = new_area;
 	pmd_phys = pud_phys + PFN_PHYS(n_pud);
 	pt_phys = pmd_phys + PFN_PHYS(n_pmd);
 	p2m_pfn = PFN_DOWN(pt_phys) + n_pt;
 
 	pgd = __va(read_cr3_pa());
 	new_p2m = (unsigned long *)(2 * PGDIR_SIZE);
-	idx_p4d = 0;
 	save_pud = n_pud;
-	do {
-		if (n_p4d > 0) {
-			p4d = early_memremap(p4d_phys, PAGE_SIZE);
-			clear_page(p4d);
-			n_pud = min(save_pud, PTRS_PER_P4D);
-		}
-		for (idx_pud = 0; idx_pud < n_pud; idx_pud++) {
-			pud = early_memremap(pud_phys, PAGE_SIZE);
-			clear_page(pud);
-			for (idx_pmd = 0; idx_pmd < min(n_pmd, PTRS_PER_PUD);
-				 idx_pmd++) {
-				pmd = early_memremap(pmd_phys, PAGE_SIZE);
-				clear_page(pmd);
-				for (idx_pt = 0; idx_pt < min(n_pt, PTRS_PER_PMD);
-					 idx_pt++) {
-					pt = early_memremap(pt_phys, PAGE_SIZE);
-					clear_page(pt);
-					for (idx_pte = 0;
-						 idx_pte < min(n_pte, PTRS_PER_PTE);
-						 idx_pte++) {
-						set_pte(pt + idx_pte,
-								pfn_pte(p2m_pfn, PAGE_KERNEL));
-						p2m_pfn++;
-					}
-					n_pte -= PTRS_PER_PTE;
-					early_memunmap(pt, PAGE_SIZE);
-					make_lowmem_page_readonly(__va(pt_phys));
-					pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE,
-							PFN_DOWN(pt_phys));
-					set_pmd(pmd + idx_pt,
-							__pmd(_PAGE_TABLE | pt_phys));
-					pt_phys += PAGE_SIZE;
+	for (idx_pud = 0; idx_pud < n_pud; idx_pud++) {
+		pud = early_memremap(pud_phys, PAGE_SIZE);
+		clear_page(pud);
+		for (idx_pmd = 0; idx_pmd < min(n_pmd, PTRS_PER_PUD);
+				idx_pmd++) {
+			pmd = early_memremap(pmd_phys, PAGE_SIZE);
+			clear_page(pmd);
+			for (idx_pt = 0; idx_pt < min(n_pt, PTRS_PER_PMD);
+					idx_pt++) {
+				pt = early_memremap(pt_phys, PAGE_SIZE);
+				clear_page(pt);
+				for (idx_pte = 0;
+						idx_pte < min(n_pte, PTRS_PER_PTE);
+						idx_pte++) {
+					set_pte(pt + idx_pte,
+							pfn_pte(p2m_pfn, PAGE_KERNEL));
+					p2m_pfn++;
 				}
-				n_pt -= PTRS_PER_PMD;
-				early_memunmap(pmd, PAGE_SIZE);
-				make_lowmem_page_readonly(__va(pmd_phys));
-				pin_pagetable_pfn(MMUEXT_PIN_L2_TABLE,
-						PFN_DOWN(pmd_phys));
-				set_pud(pud + idx_pmd, __pud(_PAGE_TABLE | pmd_phys));
-				pmd_phys += PAGE_SIZE;
+				n_pte -= PTRS_PER_PTE;
+				early_memunmap(pt, PAGE_SIZE);
+				make_lowmem_page_readonly(__va(pt_phys));
+				pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE,
+						PFN_DOWN(pt_phys));
+				set_pmd(pmd + idx_pt,
+						__pmd(_PAGE_TABLE | pt_phys));
+				pt_phys += PAGE_SIZE;
 			}
-			n_pmd -= PTRS_PER_PUD;
-			early_memunmap(pud, PAGE_SIZE);
-			make_lowmem_page_readonly(__va(pud_phys));
-			pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(pud_phys));
-			if (n_p4d > 0)
-				set_p4d(p4d + idx_pud, __p4d(_PAGE_TABLE | pud_phys));
-			else
-				set_pgd(pgd + 2 + idx_pud, __pgd(_PAGE_TABLE | pud_phys));
-			pud_phys += PAGE_SIZE;
-		}
-		if (n_p4d > 0) {
-			save_pud -= PTRS_PER_P4D;
-			early_memunmap(p4d, PAGE_SIZE);
-			make_lowmem_page_readonly(__va(p4d_phys));
-			pin_pagetable_pfn(MMUEXT_PIN_L4_TABLE, PFN_DOWN(p4d_phys));
-			set_pgd(pgd + 2 + idx_p4d, __pgd(_PAGE_TABLE | p4d_phys));
-			p4d_phys += PAGE_SIZE;
+			n_pt -= PTRS_PER_PMD;
+			early_memunmap(pmd, PAGE_SIZE);
+			make_lowmem_page_readonly(__va(pmd_phys));
+			pin_pagetable_pfn(MMUEXT_PIN_L2_TABLE,
+					PFN_DOWN(pmd_phys));
+			set_pud(pud + idx_pmd, __pud(_PAGE_TABLE | pmd_phys));
+			pmd_phys += PAGE_SIZE;
 		}
-	} while (++idx_p4d < n_p4d);
+		n_pmd -= PTRS_PER_PUD;
+		early_memunmap(pud, PAGE_SIZE);
+		make_lowmem_page_readonly(__va(pud_phys));
+		pin_pagetable_pfn(MMUEXT_PIN_L3_TABLE, PFN_DOWN(pud_phys));
+		set_pgd(pgd + 2 + idx_pud, __pgd(_PAGE_TABLE | pud_phys));
+		pud_phys += PAGE_SIZE;
+	}
 
 	/* Now copy the old p2m info to the new area. */
 	memcpy(new_p2m, xen_p2m_addr, size);
@@ -2220,7 +2176,7 @@ static void __init xen_write_cr3_init(unsigned long cr3)
  * not the first page table in the page table pool.
  * Iterate through the initial page tables to find the real page table base.
  */
-static phys_addr_t xen_find_pt_base(pmd_t *pmd)
+static phys_addr_t __init xen_find_pt_base(pmd_t *pmd)
 {
 	phys_addr_t pt_base, paddr;
 	unsigned pmdidx;
@@ -2366,7 +2322,7 @@ static void __init xen_post_allocator_init(void)
 	pv_mmu_ops.set_pte = xen_set_pte;
 	pv_mmu_ops.set_pmd = xen_set_pmd;
 	pv_mmu_ops.set_pud = xen_set_pud;
-#if CONFIG_PGTABLE_LEVELS >= 4
+#ifdef CONFIG_X86_64
 	pv_mmu_ops.set_p4d = xen_set_p4d;
 #endif
 
@@ -2376,7 +2332,7 @@ static void __init xen_post_allocator_init(void)
 	pv_mmu_ops.alloc_pmd = xen_alloc_pmd;
 	pv_mmu_ops.release_pte = xen_release_pte;
 	pv_mmu_ops.release_pmd = xen_release_pmd;
-#if CONFIG_PGTABLE_LEVELS >= 4
+#ifdef CONFIG_X86_64
 	pv_mmu_ops.alloc_pud = xen_alloc_pud;
 	pv_mmu_ops.release_pud = xen_release_pud;
 #endif
@@ -2409,8 +2365,6 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 	.flush_tlb_single = xen_flush_tlb_single,
 	.flush_tlb_others = xen_flush_tlb_others,
 
-	.pte_update = paravirt_nop,
-
 	.pgd_alloc = xen_pgd_alloc,
 	.pgd_free = xen_pgd_free,
 
@@ -2442,14 +2396,14 @@ static const struct pv_mmu_ops xen_mmu_ops __initconst = {
 	.make_pmd = PV_CALLEE_SAVE(xen_make_pmd),
 	.pmd_val = PV_CALLEE_SAVE(xen_pmd_val),
 
-#if CONFIG_PGTABLE_LEVELS >= 4
+#ifdef CONFIG_X86_64
 	.pud_val = PV_CALLEE_SAVE(xen_pud_val),
 	.make_pud = PV_CALLEE_SAVE(xen_make_pud),
 	.set_p4d = xen_set_p4d_hyper,
 
 	.alloc_pud = xen_alloc_pmd_init,
 	.release_pud = xen_release_pmd_init,
-#endif	/* CONFIG_PGTABLE_LEVELS == 4 */
+#endif	/* CONFIG_X86_64 */
 
 	.activate_mm = xen_activate_mm,
 	.dup_mmap = xen_dup_mmap,
diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c
index ea54a08d8301..dc502ca8263e 100644
--- a/arch/x86/xen/multicalls.c
+++ b/arch/x86/xen/multicalls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xen hypercall batching.
  *
diff --git a/arch/x86/xen/multicalls.h b/arch/x86/xen/multicalls.h
index 9c2e74f9096c..1c51b2c87f30 100644
--- a/arch/x86/xen/multicalls.h
+++ b/arch/x86/xen/multicalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_MULTICALLS_H
 #define _XEN_MULTICALLS_H
 
diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index 6083ba462f35..13b4f19b9131 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -547,7 +547,7 @@ int xen_alloc_p2m_entry(unsigned long pfn)
 	if (p2m_top_mfn && pfn < MAX_P2M_PFN) {
 		topidx = p2m_top_index(pfn);
 		top_mfn_p = &p2m_top_mfn[topidx];
-		mid_mfn = ACCESS_ONCE(p2m_top_mfn_p[topidx]);
+		mid_mfn = READ_ONCE(p2m_top_mfn_p[topidx]);
 
 		BUG_ON(virt_to_mfn(mid_mfn) != *top_mfn_p);
 
diff --git a/arch/x86/xen/pmu.c b/arch/x86/xen/pmu.c
index b9fc52556bcc..7d00d4ad44d4 100644
--- a/arch/x86/xen/pmu.c
+++ b/arch/x86/xen/pmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/interrupt.h>
 
diff --git a/arch/x86/xen/pmu.h b/arch/x86/xen/pmu.h
index 4be5355b56f7..0e83a160589b 100644
--- a/arch/x86/xen/pmu.h
+++ b/arch/x86/xen/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XEN_PMU_H
 #define __XEN_PMU_H
 
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index ac55c02f98e9..c114ca767b3b 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Machine specific setup for xen
  *
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index e7f02eb73727..77c959cf81e7 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/smp.h>
 #include <linux/cpu.h>
 #include <linux/slab.h>
diff --git a/arch/x86/xen/smp.h b/arch/x86/xen/smp.h
index 87d3c76cba37..bd02f9d50107 100644
--- a/arch/x86/xen/smp.h
+++ b/arch/x86/xen/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_SMP_H
 
 #ifdef CONFIG_SMP
diff --git a/arch/x86/xen/smp_hvm.c b/arch/x86/xen/smp_hvm.c
index fd60abedf658..f8d39440b292 100644
--- a/arch/x86/xen/smp_hvm.c
+++ b/arch/x86/xen/smp_hvm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/smp.h>
 
 #include <xen/events.h>
diff --git a/arch/x86/xen/smp_pv.c b/arch/x86/xen/smp_pv.c
index 51471408fdd1..c0c756c76afe 100644
--- a/arch/x86/xen/smp_pv.c
+++ b/arch/x86/xen/smp_pv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xen SMP support
  *
@@ -13,6 +14,7 @@
  * single-threaded.
  */
 #include <linux/sched.h>
+#include <linux/sched/task_stack.h>
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
@@ -293,12 +295,19 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 #endif
 	memset(&ctxt->fpu_ctxt, 0, sizeof(ctxt->fpu_ctxt));
 
+	/*
+	 * Bring up the CPU in cpu_bringup_and_idle() with the stack
+	 * pointing just below where pt_regs would be if it were a normal
+	 * kernel entry.
+	 */
 	ctxt->user_regs.eip = (unsigned long)cpu_bringup_and_idle;
 	ctxt->flags = VGCF_IN_KERNEL;
 	ctxt->user_regs.eflags = 0x1000; /* IOPL_RING1 */
 	ctxt->user_regs.ds = __USER_DS;
 	ctxt->user_regs.es = __USER_DS;
 	ctxt->user_regs.ss = __KERNEL_DS;
+	ctxt->user_regs.cs = __KERNEL_CS;
+	ctxt->user_regs.esp = (unsigned long)task_pt_regs(idle);
 
 	xen_copy_trap_info(ctxt->trap_ctxt);
 
@@ -313,8 +322,13 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 	ctxt->gdt_frames[0] = gdt_mfn;
 	ctxt->gdt_ents      = GDT_ENTRIES;
 
+	/*
+	 * Set SS:SP that Xen will use when entering guest kernel mode
+	 * from guest user mode.  Subsequent calls to load_sp0() can
+	 * change this value.
+	 */
 	ctxt->kernel_ss = __KERNEL_DS;
-	ctxt->kernel_sp = idle->thread.sp0;
+	ctxt->kernel_sp = task_top_of_stack(idle);
 
 #ifdef CONFIG_X86_32
 	ctxt->event_callback_cs     = __KERNEL_CS;
@@ -326,10 +340,8 @@ cpu_initialize_context(unsigned int cpu, struct task_struct *idle)
 		(unsigned long)xen_hypervisor_callback;
 	ctxt->failsafe_callback_eip =
 		(unsigned long)xen_failsafe_callback;
-	ctxt->user_regs.cs = __KERNEL_CS;
 	per_cpu(xen_cr3, cpu) = __pa(swapper_pg_dir);
 
-	ctxt->user_regs.esp = idle->thread.sp0 - sizeof(struct pt_regs);
 	ctxt->ctrlreg[3] = xen_pfn_to_cr3(virt_to_gfn(swapper_pg_dir));
 	if (HYPERVISOR_vcpu_op(VCPUOP_initialise, xen_vcpu_nr(cpu), ctxt))
 		BUG();
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index 25a7c4302ce7..02f3445a2b5f 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Split spinlock implementation out into its own file, so it can be
  * compiled in a FTRACE-compatible way.
@@ -10,6 +11,7 @@
 #include <linux/slab.h>
 
 #include <asm/paravirt.h>
+#include <asm/qspinlock.h>
 
 #include <xen/interface/xen.h>
 #include <xen/events.h>
@@ -80,8 +82,11 @@ void xen_init_lock_cpu(int cpu)
 	int irq;
 	char *name;
 
-	if (!xen_pvspin)
+	if (!xen_pvspin) {
+		if (cpu == 0)
+			static_branch_disable(&virt_spin_lock_key);
 		return;
+	}
 
 	WARN(per_cpu(lock_kicker_irq, cpu) >= 0, "spinlock on CPU%d exists on IRQ%d!\n",
 	     cpu, per_cpu(lock_kicker_irq, cpu));
diff --git a/arch/x86/xen/suspend.c b/arch/x86/xen/suspend.c
index d6b1680693a9..92bf5ecb6baf 100644
--- a/arch/x86/xen/suspend.c
+++ b/arch/x86/xen/suspend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/tick.h>
 
diff --git a/arch/x86/xen/suspend_hvm.c b/arch/x86/xen/suspend_hvm.c
index 484999416d8b..e666b614cf6d 100644
--- a/arch/x86/xen/suspend_hvm.c
+++ b/arch/x86/xen/suspend_hvm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 
 #include <xen/xen.h>
diff --git a/arch/x86/xen/suspend_pv.c b/arch/x86/xen/suspend_pv.c
index 3abe4f07f34a..a2e0f110af56 100644
--- a/arch/x86/xen/suspend_pv.c
+++ b/arch/x86/xen/suspend_pv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 
 #include <asm/fixmap.h>
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index 1ecb05db3632..80c2a4bdf230 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xen time implementation.
  *
diff --git a/arch/x86/xen/trace.c b/arch/x86/xen/trace.c
index a702ec2f5931..329f60eb95de 100644
--- a/arch/x86/xen/trace.c
+++ b/arch/x86/xen/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ftrace.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/xen-mca.h>
diff --git a/arch/x86/xen/vga.c b/arch/x86/xen/vga.c
index 6722e3733f02..e336f223f7f4 100644
--- a/arch/x86/xen/vga.c
+++ b/arch/x86/xen/vga.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/screen_info.h>
 #include <linux/init.h>
 
diff --git a/arch/x86/xen/xen-asm.S b/arch/x86/xen/xen-asm.S
index dcd31fa39b5d..8019edd0125c 100644
--- a/arch/x86/xen/xen-asm.S
+++ b/arch/x86/xen/xen-asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Asm versions of Xen pv-ops, suitable for direct use.
  *
diff --git a/arch/x86/xen/xen-asm_32.S b/arch/x86/xen/xen-asm_32.S
index 1200e262a116..c15db060a242 100644
--- a/arch/x86/xen/xen-asm_32.S
+++ b/arch/x86/xen/xen-asm_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Asm versions of Xen pv-ops, suitable for direct use.
  *
diff --git a/arch/x86/xen/xen-asm_64.S b/arch/x86/xen/xen-asm_64.S
index dae2cc33afb5..8a10c9a9e2b5 100644
--- a/arch/x86/xen/xen-asm_64.S
+++ b/arch/x86/xen/xen-asm_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Asm versions of Xen pv-ops, suitable for direct use.
  *
@@ -29,7 +30,7 @@ xen_pv_trap debug
 xen_pv_trap xendebug
 xen_pv_trap int3
 xen_pv_trap xenint3
-xen_pv_trap nmi
+xen_pv_trap xennmi
 xen_pv_trap overflow
 xen_pv_trap bounds
 xen_pv_trap invalid_op
diff --git a/arch/x86/xen/xen-head.S b/arch/x86/xen/xen-head.S
index a7525e95d53f..497cc55a0c16 100644
--- a/arch/x86/xen/xen-head.S
+++ b/arch/x86/xen/xen-head.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Xen-specific pieces of head.S, intended to be included in the right
 	place in head.S */
 
@@ -9,6 +10,7 @@
 #include <asm/boot.h>
 #include <asm/asm.h>
 #include <asm/page_types.h>
+#include <asm/unwind_hints.h>
 
 #include <xen/interface/elfnote.h>
 #include <xen/interface/features.h>
@@ -19,6 +21,7 @@
 #ifdef CONFIG_XEN_PV
 	__INIT
 ENTRY(startup_xen)
+	UNWIND_HINT_EMPTY
 	cld
 
 	/* Clear .bss */
@@ -33,21 +36,24 @@ ENTRY(startup_xen)
 	mov $init_thread_union+THREAD_SIZE, %_ASM_SP
 
 	jmp xen_start_kernel
-
+END(startup_xen)
 	__FINIT
 #endif
 
 .pushsection .text
 	.balign PAGE_SIZE
 ENTRY(hypercall_page)
-	.skip PAGE_SIZE
+	.rept (PAGE_SIZE / 32)
+		UNWIND_HINT_EMPTY
+		.skip 32
+	.endr
 
 #define HYPERCALL(n) \
 	.equ xen_hypercall_##n, hypercall_page + __HYPERVISOR_##n * 32; \
 	.type xen_hypercall_##n, @function; .size xen_hypercall_##n, 32
 #include <asm/xen-hypercalls.h>
 #undef HYPERCALL
-
+END(hypercall_page)
 .popsection
 
 	ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS,       .asciz "linux")
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index c8a6d224f7ed..f377e1820c6c 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef XEN_OPS_H
 #define XEN_OPS_H
 
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 7ad6d77b2f22..eb1f196c3f6e 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ZONE_DMA
 	def_bool y
 
diff --git a/arch/xtensa/Kconfig.debug b/arch/xtensa/Kconfig.debug
index 8430af27de0a..f64c14adadb3 100644
--- a/arch/xtensa/Kconfig.debug
+++ b/arch/xtensa/Kconfig.debug
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
diff --git a/arch/xtensa/boot/boot-redboot/bootstrap.S b/arch/xtensa/boot/boot-redboot/bootstrap.S
index 86c34dbc9cd0..bf7fabe6310d 100644
--- a/arch/xtensa/boot/boot-redboot/bootstrap.S
+++ b/arch/xtensa/boot/boot-redboot/bootstrap.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <variant/core.h>
 #include <asm/regs.h>
 #include <asm/asmmacro.h>
diff --git a/arch/xtensa/boot/dts/csp.dts b/arch/xtensa/boot/dts/csp.dts
index 4082f26716b9..885495460f7e 100644
--- a/arch/xtensa/boot/dts/csp.dts
+++ b/arch/xtensa/boot/dts/csp.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 
 / {
diff --git a/arch/xtensa/boot/dts/kc705.dts b/arch/xtensa/boot/dts/kc705.dts
index 6106bdc097ad..6887ff090fce 100644
--- a/arch/xtensa/boot/dts/kc705.dts
+++ b/arch/xtensa/boot/dts/kc705.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /include/ "xtfpga.dtsi"
 /include/ "xtfpga-flash-128m.dtsi"
diff --git a/arch/xtensa/boot/dts/kc705_nommu.dts b/arch/xtensa/boot/dts/kc705_nommu.dts
index 65f3d741b964..d8e194a0f64e 100644
--- a/arch/xtensa/boot/dts/kc705_nommu.dts
+++ b/arch/xtensa/boot/dts/kc705_nommu.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /include/ "xtfpga.dtsi"
 /include/ "xtfpga-flash-128m.dtsi"
diff --git a/arch/xtensa/boot/dts/lx200mx.dts b/arch/xtensa/boot/dts/lx200mx.dts
index 249822b99bd6..974a8d9041b3 100644
--- a/arch/xtensa/boot/dts/lx200mx.dts
+++ b/arch/xtensa/boot/dts/lx200mx.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /include/ "xtfpga.dtsi"
 /include/ "xtfpga-flash-16m.dtsi"
diff --git a/arch/xtensa/boot/dts/lx60.dts b/arch/xtensa/boot/dts/lx60.dts
index a0f8b8ad3920..7c203c1c746a 100644
--- a/arch/xtensa/boot/dts/lx60.dts
+++ b/arch/xtensa/boot/dts/lx60.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /include/ "xtfpga.dtsi"
 /include/ "xtfpga-flash-4m.dtsi"
diff --git a/arch/xtensa/boot/dts/ml605.dts b/arch/xtensa/boot/dts/ml605.dts
index 905c3a5035e9..08e5c8d47197 100644
--- a/arch/xtensa/boot/dts/ml605.dts
+++ b/arch/xtensa/boot/dts/ml605.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /include/ "xtfpga.dtsi"
 /include/ "xtfpga-flash-16m.dtsi"
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
index d3a88e029873..9bf8bad1dd18 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	soc {
 		flash: flash@00000000 {
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
index 1d97203c18e7..40c2f81f7cb6 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	soc {
 		flash: flash@08000000 {
diff --git a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
index d1c621ca8be1..fb8d3a9f33c2 100644
--- a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	soc {
 		flash: flash@08000000 {
diff --git a/arch/xtensa/boot/dts/xtfpga.dtsi b/arch/xtensa/boot/dts/xtfpga.dtsi
index 91616a9d79df..1090528825ec 100644
--- a/arch/xtensa/boot/dts/xtfpga.dtsi
+++ b/arch/xtensa/boot/dts/xtfpga.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 / {
 	compatible = "cdns,xtensa-xtfpga";
 	#address-cells = <1>;
diff --git a/arch/xtensa/boot/lib/Makefile b/arch/xtensa/boot/lib/Makefile
index 6868f2ca6af8..d2a7f48564a4 100644
--- a/arch/xtensa/boot/lib/Makefile
+++ b/arch/xtensa/boot/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for some libs needed by zImage.
 #
diff --git a/arch/xtensa/boot/lib/zmem.c b/arch/xtensa/boot/lib/zmem.c
index d9862aa8ca25..e3ecd743c515 100644
--- a/arch/xtensa/boot/lib/zmem.c
+++ b/arch/xtensa/boot/lib/zmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/zlib.h>
 
 /* bits taken from ppc */
diff --git a/arch/xtensa/include/asm/flat.h b/arch/xtensa/include/asm/flat.h
index 60e0d6a45795..b8532d7877b3 100644
--- a/arch/xtensa/include/asm/flat.h
+++ b/arch/xtensa/include/asm/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_XTENSA_FLAT_H
 #define __ASM_XTENSA_FLAT_H
 
diff --git a/arch/xtensa/include/asm/nommu_context.h b/arch/xtensa/include/asm/nommu_context.h
index 22984fd1d846..2cebdbbdb633 100644
--- a/arch/xtensa/include/asm/nommu_context.h
+++ b/arch/xtensa/include/asm/nommu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static inline void init_mmu(void)
 {
 }
diff --git a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
index 30ee8c608853..5b0027d4ecc0 100644
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -208,11 +208,6 @@ struct mm_struct;
 /* Free all resources held by a thread. */
 #define release_thread(thread) do { } while(0)
 
-/* Copy and release all segment info associated with a VM */
-#define copy_segments(p, mm)	do { } while(0)
-#define release_segments(mm)	do { } while(0)
-#define forget_segments()	do { } while (0)
-
 extern unsigned long get_wchan(struct task_struct *p);
 
 #define KSTK_EIP(tsk)		(task_pt_regs(tsk)->pc)
diff --git a/arch/xtensa/include/asm/spinlock.h b/arch/xtensa/include/asm/spinlock.h
index 3bb49681ee24..c6e1290dcbb7 100644
--- a/arch/xtensa/include/asm/spinlock.h
+++ b/arch/xtensa/include/asm/spinlock.h
@@ -33,8 +33,6 @@
 
 #define arch_spin_is_locked(x) ((x)->slock != 0)
 
-#define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock)
-
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned long tmp;
@@ -97,8 +95,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
  *  0x80000000  one writer owns the rwlock, no other writers, no readers
  */
 
-#define arch_write_can_lock(x)  ((x)->lock == 0)
-
 static inline void arch_write_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp;
@@ -200,7 +196,4 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
 			: "memory");
 }
 
-#define arch_read_lock_flags(lock, flags)	arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags)	arch_write_lock(lock)
-
 #endif	/* _XTENSA_SPINLOCK_H */
diff --git a/arch/xtensa/include/asm/spinlock_types.h b/arch/xtensa/include/asm/spinlock_types.h
index 7ec5ce10c9e9..bb1fe6c1816e 100644
--- a/arch/xtensa/include/asm/spinlock_types.h
+++ b/arch/xtensa/include/asm/spinlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SPINLOCK_TYPES_H
 #define __ASM_SPINLOCK_TYPES_H
 
diff --git a/arch/xtensa/include/asm/unistd.h b/arch/xtensa/include/asm/unistd.h
index cb4c2ce8d447..ed66db3bc9bb 100644
--- a/arch/xtensa/include/asm/unistd.h
+++ b/arch/xtensa/include/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XTENSA_UNISTD_H
 #define _XTENSA_UNISTD_H
 
diff --git a/arch/xtensa/include/uapi/asm/byteorder.h b/arch/xtensa/include/uapi/asm/byteorder.h
index 54eb6315349c..5b9f832c2e77 100644
--- a/arch/xtensa/include/uapi/asm/byteorder.h
+++ b/arch/xtensa/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XTENSA_BYTEORDER_H
 #define _XTENSA_BYTEORDER_H
 
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 47d82c09be7b..ec43609cbfc5 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/ioctls.h
  *
diff --git a/arch/xtensa/include/uapi/asm/ipcbuf.h b/arch/xtensa/include/uapi/asm/ipcbuf.h
index c33aa6a42145..a57afa0b606f 100644
--- a/arch/xtensa/include/uapi/asm/ipcbuf.h
+++ b/arch/xtensa/include/uapi/asm/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/ipcbuf.h
  *
diff --git a/arch/xtensa/include/uapi/asm/mman.h b/arch/xtensa/include/uapi/asm/mman.h
index b15b278aa314..2bfe590694fc 100644
--- a/arch/xtensa/include/uapi/asm/mman.h
+++ b/arch/xtensa/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/mman.h
  *
diff --git a/arch/xtensa/include/uapi/asm/msgbuf.h b/arch/xtensa/include/uapi/asm/msgbuf.h
index 693c96755280..36e2e103ca38 100644
--- a/arch/xtensa/include/uapi/asm/msgbuf.h
+++ b/arch/xtensa/include/uapi/asm/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/msgbuf.h
  *
diff --git a/arch/xtensa/include/uapi/asm/param.h b/arch/xtensa/include/uapi/asm/param.h
index 87bc2eae630e..e6feb4ee0590 100644
--- a/arch/xtensa/include/uapi/asm/param.h
+++ b/arch/xtensa/include/uapi/asm/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/param.h
  *
diff --git a/arch/xtensa/include/uapi/asm/poll.h b/arch/xtensa/include/uapi/asm/poll.h
index 9d2d5993f068..4d249040b33d 100644
--- a/arch/xtensa/include/uapi/asm/poll.h
+++ b/arch/xtensa/include/uapi/asm/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/poll.h
  *
diff --git a/arch/xtensa/include/uapi/asm/posix_types.h b/arch/xtensa/include/uapi/asm/posix_types.h
index 6e96be0d02d3..1dc67592881f 100644
--- a/arch/xtensa/include/uapi/asm/posix_types.h
+++ b/arch/xtensa/include/uapi/asm/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/posix_types.h
  *
diff --git a/arch/xtensa/include/uapi/asm/ptrace.h b/arch/xtensa/include/uapi/asm/ptrace.h
index 8853a0d544c8..a10b42963703 100644
--- a/arch/xtensa/include/uapi/asm/ptrace.h
+++ b/arch/xtensa/include/uapi/asm/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/ptrace.h
  *
diff --git a/arch/xtensa/include/uapi/asm/sembuf.h b/arch/xtensa/include/uapi/asm/sembuf.h
index c15870493b33..f61b6331a10c 100644
--- a/arch/xtensa/include/uapi/asm/sembuf.h
+++ b/arch/xtensa/include/uapi/asm/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/sembuf.h
  *
diff --git a/arch/xtensa/include/uapi/asm/setup.h b/arch/xtensa/include/uapi/asm/setup.h
index 9fa8ad979361..57e6c210e84f 100644
--- a/arch/xtensa/include/uapi/asm/setup.h
+++ b/arch/xtensa/include/uapi/asm/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/setup.h
  *
diff --git a/arch/xtensa/include/uapi/asm/shmbuf.h b/arch/xtensa/include/uapi/asm/shmbuf.h
index ad4b0121782c..26550bdc8430 100644
--- a/arch/xtensa/include/uapi/asm/shmbuf.h
+++ b/arch/xtensa/include/uapi/asm/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/shmbuf.h
  *
diff --git a/arch/xtensa/include/uapi/asm/sigcontext.h b/arch/xtensa/include/uapi/asm/sigcontext.h
index 03383af8c3b7..9cbf39e63f74 100644
--- a/arch/xtensa/include/uapi/asm/sigcontext.h
+++ b/arch/xtensa/include/uapi/asm/sigcontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/sigcontext.h
  *
diff --git a/arch/xtensa/include/uapi/asm/signal.h b/arch/xtensa/include/uapi/asm/signal.h
index 586756ee267a..005dec5bfde4 100644
--- a/arch/xtensa/include/uapi/asm/signal.h
+++ b/arch/xtensa/include/uapi/asm/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/signal.h
  *
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
index 220059999e74..75a07b8119a9 100644
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ b/arch/xtensa/include/uapi/asm/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/socket.h
  *
diff --git a/arch/xtensa/include/uapi/asm/sockios.h b/arch/xtensa/include/uapi/asm/sockios.h
index efe0af379f01..fb8ac3607189 100644
--- a/arch/xtensa/include/uapi/asm/sockios.h
+++ b/arch/xtensa/include/uapi/asm/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/sockios.h
  *
diff --git a/arch/xtensa/include/uapi/asm/stat.h b/arch/xtensa/include/uapi/asm/stat.h
index c4992038cee0..7b4d90d6d771 100644
--- a/arch/xtensa/include/uapi/asm/stat.h
+++ b/arch/xtensa/include/uapi/asm/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/stat.h
  *
diff --git a/arch/xtensa/include/uapi/asm/swab.h b/arch/xtensa/include/uapi/asm/swab.h
index 226a39162310..e677cf4cc092 100644
--- a/arch/xtensa/include/uapi/asm/swab.h
+++ b/arch/xtensa/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/swab.h
  *
diff --git a/arch/xtensa/include/uapi/asm/termbits.h b/arch/xtensa/include/uapi/asm/termbits.h
index 0d6c8715b24f..d4206a7c5138 100644
--- a/arch/xtensa/include/uapi/asm/termbits.h
+++ b/arch/xtensa/include/uapi/asm/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/termbits.h
  *
diff --git a/arch/xtensa/include/uapi/asm/types.h b/arch/xtensa/include/uapi/asm/types.h
index 2efc921506c4..12db8ac38750 100644
--- a/arch/xtensa/include/uapi/asm/types.h
+++ b/arch/xtensa/include/uapi/asm/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/asm-xtensa/types.h
  *
diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h
index 6be7eb27fd29..bc3f62db5c5f 100644
--- a/arch/xtensa/include/uapi/asm/unistd.h
+++ b/arch/xtensa/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #if !defined(_UAPI_XTENSA_UNISTD_H) || defined(__SYSCALL)
 #define _UAPI_XTENSA_UNISTD_H
 
diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile
index 264fb89c444e..bb8d55775a97 100644
--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux/Xtensa kernel.
 #
diff --git a/arch/xtensa/kernel/irq.c b/arch/xtensa/kernel/irq.c
index 99341028cc77..18e4ef34ac45 100644
--- a/arch/xtensa/kernel/irq.c
+++ b/arch/xtensa/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/arch/xtensa/kernel/irq.c
  *
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index abe4513eb0dd..358d748d9083 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xtensa mmu stuff
  *
diff --git a/arch/xtensa/oprofile/Makefile b/arch/xtensa/oprofile/Makefile
index 69ffbe80f184..f559b9ffbb3f 100644
--- a/arch/xtensa/oprofile/Makefile
+++ b/arch/xtensa/oprofile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPROFILE) += oprofile.o
 
 DRIVER_OBJS = $(addprefix ../../../drivers/oprofile/, \
diff --git a/arch/xtensa/platforms/iss/console.c b/arch/xtensa/platforms/iss/console.c
index 0140a22551c8..464c2684c4f1 100644
--- a/arch/xtensa/platforms/iss/console.c
+++ b/arch/xtensa/platforms/iss/console.c
@@ -47,15 +47,14 @@ static char *serial_name = "ISS serial driver";
  * initialization for the tty structure.
  */
 
-static void rs_poll(unsigned long);
+static void rs_poll(struct timer_list *);
 
 static int rs_open(struct tty_struct *tty, struct file * filp)
 {
 	tty->port = &serial_port;
 	spin_lock_bh(&timer_lock);
 	if (tty->count == 1) {
-		setup_timer(&serial_timer, rs_poll,
-				(unsigned long)&serial_port);
+		timer_setup(&serial_timer, rs_poll, 0);
 		mod_timer(&serial_timer, jiffies + SERIAL_TIMER_VALUE);
 	}
 	spin_unlock_bh(&timer_lock);
@@ -92,9 +91,9 @@ static int rs_write(struct tty_struct * tty,
 	return count;
 }
 
-static void rs_poll(unsigned long priv)
+static void rs_poll(struct timer_list *unused)
 {
-	struct tty_port *port = (struct tty_port *)priv;
+	struct tty_port *port = &serial_port;
 	int i = 0;
 	int rd = 1;
 	unsigned char c;
diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c
index 66a5d15a9e0e..6363b18e5b8c 100644
--- a/arch/xtensa/platforms/iss/network.c
+++ b/arch/xtensa/platforms/iss/network.c
@@ -349,9 +349,9 @@ static int iss_net_poll(void)
 }
 
 
-static void iss_net_timer(unsigned long priv)
+static void iss_net_timer(struct timer_list *t)
 {
-	struct iss_net_private *lp = (struct iss_net_private *)priv;
+	struct iss_net_private *lp = from_timer(lp, t, timer);
 
 	iss_net_poll();
 	spin_lock(&lp->lock);
@@ -386,10 +386,8 @@ static int iss_net_open(struct net_device *dev)
 	spin_unlock_bh(&opened_lock);
 	spin_lock_bh(&lp->lock);
 
-	init_timer(&lp->timer);
+	timer_setup(&lp->timer, iss_net_timer, 0);
 	lp->timer_val = ISS_NET_TIMER_VALUE;
-	lp->timer.data = (unsigned long) lp;
-	lp->timer.function = iss_net_timer;
 	mod_timer(&lp->timer, jiffies + lp->timer_val);
 
 out:
@@ -482,7 +480,7 @@ static int iss_net_change_mtu(struct net_device *dev, int new_mtu)
 	return -EINVAL;
 }
 
-void iss_net_user_timer_expire(unsigned long _conn)
+void iss_net_user_timer_expire(struct timer_list *unused)
 {
 }
 
@@ -582,8 +580,7 @@ static int iss_net_configure(int index, char *init)
 		return 1;
 	}
 
-	init_timer(&lp->tl);
-	lp->tl.function = iss_net_user_timer_expire;
+	timer_setup(&lp->tl, iss_net_user_timer_expire, 0);
 
 	return 0;
 
diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c
index c45b90bb9339..1b6418407467 100644
--- a/arch/xtensa/platforms/iss/simdisk.c
+++ b/arch/xtensa/platforms/iss/simdisk.c
@@ -110,13 +110,13 @@ static blk_qc_t simdisk_make_request(struct request_queue *q, struct bio *bio)
 	sector_t sector = bio->bi_iter.bi_sector;
 
 	bio_for_each_segment(bvec, bio, iter) {
-		char *buffer = __bio_kmap_atomic(bio, iter);
+		char *buffer = kmap_atomic(bvec.bv_page) + bvec.bv_offset;
 		unsigned len = bvec.bv_len >> SECTOR_SHIFT;
 
 		simdisk_transfer(dev, sector, len, buffer,
 				bio_data_dir(bio) == WRITE);
 		sector += len;
-		__bio_kunmap_atomic(buffer);
+		kunmap_atomic(buffer);
 	}
 
 	bio_endio(bio);
diff --git a/arch/xtensa/platforms/xtfpga/lcd.c b/arch/xtensa/platforms/xtfpga/lcd.c
index 4dc0c1b43f4b..2f7eb66c23ec 100644
--- a/arch/xtensa/platforms/xtfpga/lcd.c
+++ b/arch/xtensa/platforms/xtfpga/lcd.c
@@ -34,23 +34,23 @@
 static void lcd_put_byte(u8 *addr, u8 data)
 {
 #ifdef CONFIG_XTFPGA_LCD_8BIT_ACCESS
-	ACCESS_ONCE(*addr) = data;
+	WRITE_ONCE(*addr, data);
 #else
-	ACCESS_ONCE(*addr) = data & 0xf0;
-	ACCESS_ONCE(*addr) = (data << 4) & 0xf0;
+	WRITE_ONCE(*addr, data & 0xf0);
+	WRITE_ONCE(*addr, (data << 4) & 0xf0);
 #endif
 }
 
 static int __init lcd_init(void)
 {
-	ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT;
+	WRITE_ONCE(*LCD_INSTR_ADDR, LCD_DISPLAY_MODE8BIT);
 	mdelay(5);
-	ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT;
+	WRITE_ONCE(*LCD_INSTR_ADDR, LCD_DISPLAY_MODE8BIT);
 	udelay(200);
-	ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT;
+	WRITE_ONCE(*LCD_INSTR_ADDR, LCD_DISPLAY_MODE8BIT);
 	udelay(50);
 #ifndef CONFIG_XTFPGA_LCD_8BIT_ACCESS
-	ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE4BIT;
+	WRITE_ONCE(*LCD_INSTR_ADDR, LCD_DISPLAY_MODE4BIT);
 	udelay(50);
 	lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_MODE4BIT);
 	udelay(50);
diff --git a/block/Kconfig b/block/Kconfig
index 3ab42bbb06d5..28ec55752b68 100644
--- a/block/Kconfig
+++ b/block/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Block layer core configuration
 #
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched
index fd2cefa47d35..a4a8914bf7a4 100644
--- a/block/Kconfig.iosched
+++ b/block/Kconfig.iosched
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 if BLOCK
 
 menu "IO Schedulers"
diff --git a/block/Makefile b/block/Makefile
index 9396ebc85d24..6a56303b9925 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel block layer
 #
diff --git a/block/badblocks.c b/block/badblocks.c
index 43c71166e1e2..91f7bcf979d3 100644
--- a/block/badblocks.c
+++ b/block/badblocks.c
@@ -178,7 +178,7 @@ int badblocks_set(struct badblocks *bb, sector_t s, int sectors,
 
 	if (bb->shift < 0)
 		/* badblocks are disabled */
-		return 0;
+		return 1;
 
 	if (bb->shift) {
 		/* round the start down, and the end up */
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index a4783da90ba8..889a8549d97f 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -108,6 +108,7 @@
 #include "blk-mq-tag.h"
 #include "blk-mq-sched.h"
 #include "bfq-iosched.h"
+#include "blk-wbt.h"
 
 #define BFQ_BFQQ_FNS(name)						\
 void bfq_mark_bfqq_##name(struct bfq_queue *bfqq)			\
@@ -724,6 +725,44 @@ static void bfq_updated_next_req(struct bfq_data *bfqd,
 	}
 }
 
+static unsigned int bfq_wr_duration(struct bfq_data *bfqd)
+{
+	u64 dur;
+
+	if (bfqd->bfq_wr_max_time > 0)
+		return bfqd->bfq_wr_max_time;
+
+	dur = bfqd->RT_prod;
+	do_div(dur, bfqd->peak_rate);
+
+	/*
+	 * Limit duration between 3 and 13 seconds. Tests show that
+	 * higher values than 13 seconds often yield the opposite of
+	 * the desired result, i.e., worsen responsiveness by letting
+	 * non-interactive and non-soft-real-time applications
+	 * preserve weight raising for a too long time interval.
+	 *
+	 * On the other end, lower values than 3 seconds make it
+	 * difficult for most interactive tasks to complete their jobs
+	 * before weight-raising finishes.
+	 */
+	if (dur > msecs_to_jiffies(13000))
+		dur = msecs_to_jiffies(13000);
+	else if (dur < msecs_to_jiffies(3000))
+		dur = msecs_to_jiffies(3000);
+
+	return dur;
+}
+
+/* switch back from soft real-time to interactive weight raising */
+static void switch_back_to_interactive_wr(struct bfq_queue *bfqq,
+					  struct bfq_data *bfqd)
+{
+	bfqq->wr_coeff = bfqd->bfq_wr_coeff;
+	bfqq->wr_cur_max_time = bfq_wr_duration(bfqd);
+	bfqq->last_wr_start_finish = bfqq->wr_start_at_switch_to_srt;
+}
+
 static void
 bfq_bfqq_resume_state(struct bfq_queue *bfqq, struct bfq_data *bfqd,
 		      struct bfq_io_cq *bic, bool bfq_already_existing)
@@ -750,10 +789,16 @@ bfq_bfqq_resume_state(struct bfq_queue *bfqq, struct bfq_data *bfqd,
 	if (bfqq->wr_coeff > 1 && (bfq_bfqq_in_large_burst(bfqq) ||
 	    time_is_before_jiffies(bfqq->last_wr_start_finish +
 				   bfqq->wr_cur_max_time))) {
-		bfq_log_bfqq(bfqq->bfqd, bfqq,
-		    "resume state: switching off wr");
-
-		bfqq->wr_coeff = 1;
+		if (bfqq->wr_cur_max_time == bfqd->bfq_wr_rt_max_time &&
+		    !bfq_bfqq_in_large_burst(bfqq) &&
+		    time_is_after_eq_jiffies(bfqq->wr_start_at_switch_to_srt +
+					     bfq_wr_duration(bfqd))) {
+			switch_back_to_interactive_wr(bfqq, bfqd);
+		} else {
+			bfqq->wr_coeff = 1;
+			bfq_log_bfqq(bfqq->bfqd, bfqq,
+				     "resume state: switching off wr");
+		}
 	}
 
 	/* make sure weight will be updated, however we got here */
@@ -1173,33 +1218,22 @@ static bool bfq_bfqq_update_budg_for_activation(struct bfq_data *bfqd,
 	return wr_or_deserves_wr;
 }
 
-static unsigned int bfq_wr_duration(struct bfq_data *bfqd)
+/*
+ * Return the farthest future time instant according to jiffies
+ * macros.
+ */
+static unsigned long bfq_greatest_from_now(void)
 {
-	u64 dur;
-
-	if (bfqd->bfq_wr_max_time > 0)
-		return bfqd->bfq_wr_max_time;
-
-	dur = bfqd->RT_prod;
-	do_div(dur, bfqd->peak_rate);
-
-	/*
-	 * Limit duration between 3 and 13 seconds. Tests show that
-	 * higher values than 13 seconds often yield the opposite of
-	 * the desired result, i.e., worsen responsiveness by letting
-	 * non-interactive and non-soft-real-time applications
-	 * preserve weight raising for a too long time interval.
-	 *
-	 * On the other end, lower values than 3 seconds make it
-	 * difficult for most interactive tasks to complete their jobs
-	 * before weight-raising finishes.
-	 */
-	if (dur > msecs_to_jiffies(13000))
-		dur = msecs_to_jiffies(13000);
-	else if (dur < msecs_to_jiffies(3000))
-		dur = msecs_to_jiffies(3000);
+	return jiffies + MAX_JIFFY_OFFSET;
+}
 
-	return dur;
+/*
+ * Return the farthest past time instant according to jiffies
+ * macros.
+ */
+static unsigned long bfq_smallest_from_now(void)
+{
+	return jiffies - MAX_JIFFY_OFFSET;
 }
 
 static void bfq_update_bfqq_wr_on_rq_arrival(struct bfq_data *bfqd,
@@ -1216,7 +1250,19 @@ static void bfq_update_bfqq_wr_on_rq_arrival(struct bfq_data *bfqd,
 			bfqq->wr_coeff = bfqd->bfq_wr_coeff;
 			bfqq->wr_cur_max_time = bfq_wr_duration(bfqd);
 		} else {
-			bfqq->wr_start_at_switch_to_srt = jiffies;
+			/*
+			 * No interactive weight raising in progress
+			 * here: assign minus infinity to
+			 * wr_start_at_switch_to_srt, to make sure
+			 * that, at the end of the soft-real-time
+			 * weight raising periods that is starting
+			 * now, no interactive weight-raising period
+			 * may be wrongly considered as still in
+			 * progress (and thus actually started by
+			 * mistake).
+			 */
+			bfqq->wr_start_at_switch_to_srt =
+				bfq_smallest_from_now();
 			bfqq->wr_coeff = bfqd->bfq_wr_coeff *
 				BFQ_SOFTRT_WEIGHT_FACTOR;
 			bfqq->wr_cur_max_time =
@@ -2016,10 +2062,27 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq)
 	bic->saved_IO_bound = bfq_bfqq_IO_bound(bfqq);
 	bic->saved_in_large_burst = bfq_bfqq_in_large_burst(bfqq);
 	bic->was_in_burst_list = !hlist_unhashed(&bfqq->burst_list_node);
-	bic->saved_wr_coeff = bfqq->wr_coeff;
-	bic->saved_wr_start_at_switch_to_srt = bfqq->wr_start_at_switch_to_srt;
-	bic->saved_last_wr_start_finish = bfqq->last_wr_start_finish;
-	bic->saved_wr_cur_max_time = bfqq->wr_cur_max_time;
+	if (unlikely(bfq_bfqq_just_created(bfqq) &&
+		     !bfq_bfqq_in_large_burst(bfqq))) {
+		/*
+		 * bfqq being merged right after being created: bfqq
+		 * would have deserved interactive weight raising, but
+		 * did not make it to be set in a weight-raised state,
+		 * because of this early merge.	Store directly the
+		 * weight-raising state that would have been assigned
+		 * to bfqq, so that to avoid that bfqq unjustly fails
+		 * to enjoy weight raising if split soon.
+		 */
+		bic->saved_wr_coeff = bfqq->bfqd->bfq_wr_coeff;
+		bic->saved_wr_cur_max_time = bfq_wr_duration(bfqq->bfqd);
+		bic->saved_last_wr_start_finish = jiffies;
+	} else {
+		bic->saved_wr_coeff = bfqq->wr_coeff;
+		bic->saved_wr_start_at_switch_to_srt =
+			bfqq->wr_start_at_switch_to_srt;
+		bic->saved_last_wr_start_finish = bfqq->last_wr_start_finish;
+		bic->saved_wr_cur_max_time = bfqq->wr_cur_max_time;
+	}
 }
 
 static void
@@ -2897,24 +2960,6 @@ static unsigned long bfq_bfqq_softrt_next_start(struct bfq_data *bfqd,
 		   jiffies + nsecs_to_jiffies(bfqq->bfqd->bfq_slice_idle) + 4);
 }
 
-/*
- * Return the farthest future time instant according to jiffies
- * macros.
- */
-static unsigned long bfq_greatest_from_now(void)
-{
-	return jiffies + MAX_JIFFY_OFFSET;
-}
-
-/*
- * Return the farthest past time instant according to jiffies
- * macros.
- */
-static unsigned long bfq_smallest_from_now(void)
-{
-	return jiffies - MAX_JIFFY_OFFSET;
-}
-
 /**
  * bfq_bfqq_expire - expire a queue.
  * @bfqd: device owning the queue.
@@ -3489,11 +3534,7 @@ static void bfq_update_wr_data(struct bfq_data *bfqd, struct bfq_queue *bfqq)
 					       bfq_wr_duration(bfqd)))
 				bfq_bfqq_end_wr(bfqq);
 			else {
-				/* switch back to interactive wr */
-				bfqq->wr_coeff = bfqd->bfq_wr_coeff;
-				bfqq->wr_cur_max_time = bfq_wr_duration(bfqd);
-				bfqq->last_wr_start_finish =
-					bfqq->wr_start_at_switch_to_srt;
+				switch_back_to_interactive_wr(bfqq, bfqd);
 				bfqq->entity.prio_changed = 1;
 			}
 		}
@@ -3685,16 +3726,37 @@ void bfq_put_queue(struct bfq_queue *bfqq)
 	if (bfqq->ref)
 		return;
 
-	if (bfq_bfqq_sync(bfqq))
+	if (!hlist_unhashed(&bfqq->burst_list_node)) {
+		hlist_del_init(&bfqq->burst_list_node);
 		/*
-		 * The fact that this queue is being destroyed does not
-		 * invalidate the fact that this queue may have been
-		 * activated during the current burst. As a consequence,
-		 * although the queue does not exist anymore, and hence
-		 * needs to be removed from the burst list if there,
-		 * the burst size has not to be decremented.
+		 * Decrement also burst size after the removal, if the
+		 * process associated with bfqq is exiting, and thus
+		 * does not contribute to the burst any longer. This
+		 * decrement helps filter out false positives of large
+		 * bursts, when some short-lived process (often due to
+		 * the execution of commands by some service) happens
+		 * to start and exit while a complex application is
+		 * starting, and thus spawning several processes that
+		 * do I/O (and that *must not* be treated as a large
+		 * burst, see comments on bfq_handle_burst).
+		 *
+		 * In particular, the decrement is performed only if:
+		 * 1) bfqq is not a merged queue, because, if it is,
+		 * then this free of bfqq is not triggered by the exit
+		 * of the process bfqq is associated with, but exactly
+		 * by the fact that bfqq has just been merged.
+		 * 2) burst_size is greater than 0, to handle
+		 * unbalanced decrements. Unbalanced decrements may
+		 * happen in te following case: bfqq is inserted into
+		 * the current burst list--without incrementing
+		 * bust_size--because of a split, but the current
+		 * burst list is not the burst list bfqq belonged to
+		 * (see comments on the case of a split in
+		 * bfq_set_request).
 		 */
-		hlist_del_init(&bfqq->burst_list_node);
+		if (bfqq->bic && bfqq->bfqd->burst_size > 0)
+			bfqq->bfqd->burst_size--;
+	}
 
 	kmem_cache_free(bfq_pool, bfqq);
 #ifdef CONFIG_BFQ_GROUP_IOSCHED
@@ -4127,7 +4189,6 @@ static void __bfq_insert_request(struct bfq_data *bfqd, struct request *rq)
 		new_bfqq->allocated++;
 		bfqq->allocated--;
 		new_bfqq->ref++;
-		bfq_clear_bfqq_just_created(bfqq);
 		/*
 		 * If the bic associated with the process
 		 * issuing this request still points to bfqq
@@ -4139,6 +4200,8 @@ static void __bfq_insert_request(struct bfq_data *bfqd, struct request *rq)
 		if (bic_to_bfqq(RQ_BIC(rq), 1) == bfqq)
 			bfq_merge_bfqqs(bfqd, RQ_BIC(rq),
 					bfqq, new_bfqq);
+
+		bfq_clear_bfqq_just_created(bfqq);
 		/*
 		 * rq is about to be enqueued into new_bfqq,
 		 * release rq reference on bfqq
@@ -4424,6 +4487,34 @@ static struct bfq_queue *bfq_get_bfqq_handle_split(struct bfq_data *bfqd,
 		else {
 			bfq_clear_bfqq_in_large_burst(bfqq);
 			if (bic->was_in_burst_list)
+				/*
+				 * If bfqq was in the current
+				 * burst list before being
+				 * merged, then we have to add
+				 * it back. And we do not need
+				 * to increase burst_size, as
+				 * we did not decrement
+				 * burst_size when we removed
+				 * bfqq from the burst list as
+				 * a consequence of a merge
+				 * (see comments in
+				 * bfq_put_queue). In this
+				 * respect, it would be rather
+				 * costly to know whether the
+				 * current burst list is still
+				 * the same burst list from
+				 * which bfqq was removed on
+				 * the merge. To avoid this
+				 * cost, if bfqq was in a
+				 * burst list, then we add
+				 * bfqq to the current burst
+				 * list without any further
+				 * check. This can cause
+				 * inappropriate insertions,
+				 * but rarely enough to not
+				 * harm the detection of large
+				 * bursts significantly.
+				 */
 				hlist_add_head(&bfqq->burst_list_node,
 					       &bfqd->burst_list);
 		}
@@ -4775,7 +4866,7 @@ static int bfq_init_queue(struct request_queue *q, struct elevator_type *e)
 	bfq_init_root_group(bfqd->root_group, bfqd);
 	bfq_init_entity(&bfqd->oom_bfqq.entity, bfqd->root_group);
 
-
+	wbt_disable_default(q);
 	return 0;
 
 out_free:
diff --git a/block/bio-integrity.c b/block/bio-integrity.c
index 5df32907ff3b..23b42e8aa03e 100644
--- a/block/bio-integrity.c
+++ b/block/bio-integrity.c
@@ -485,11 +485,8 @@ EXPORT_SYMBOL(bioset_integrity_create);
 
 void bioset_integrity_free(struct bio_set *bs)
 {
-	if (bs->bio_integrity_pool)
-		mempool_destroy(bs->bio_integrity_pool);
-
-	if (bs->bvec_integrity_pool)
-		mempool_destroy(bs->bvec_integrity_pool);
+	mempool_destroy(bs->bio_integrity_pool);
+	mempool_destroy(bs->bvec_integrity_pool);
 }
 EXPORT_SYMBOL(bioset_integrity_free);
 
diff --git a/block/bio.c b/block/bio.c
index b38e962fa83e..b94a802f8ba3 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -400,7 +400,7 @@ static void punt_bios_to_rescuer(struct bio_set *bs)
 
 /**
  * bio_alloc_bioset - allocate a bio for I/O
- * @gfp_mask:   the GFP_ mask given to the slab allocator
+ * @gfp_mask:   the GFP_* mask given to the slab allocator
  * @nr_iovecs:	number of iovecs to pre-allocate
  * @bs:		the bio_set to allocate from.
  *
@@ -917,17 +917,9 @@ int bio_iov_iter_get_pages(struct bio *bio, struct iov_iter *iter)
 }
 EXPORT_SYMBOL_GPL(bio_iov_iter_get_pages);
 
-struct submit_bio_ret {
-	struct completion event;
-	int error;
-};
-
 static void submit_bio_wait_endio(struct bio *bio)
 {
-	struct submit_bio_ret *ret = bio->bi_private;
-
-	ret->error = blk_status_to_errno(bio->bi_status);
-	complete(&ret->event);
+	complete(bio->bi_private);
 }
 
 /**
@@ -943,16 +935,15 @@ static void submit_bio_wait_endio(struct bio *bio)
  */
 int submit_bio_wait(struct bio *bio)
 {
-	struct submit_bio_ret ret;
+	DECLARE_COMPLETION_ONSTACK_MAP(done, bio->bi_disk->lockdep_map);
 
-	init_completion(&ret.event);
-	bio->bi_private = &ret;
+	bio->bi_private = &done;
 	bio->bi_end_io = submit_bio_wait_endio;
 	bio->bi_opf |= REQ_SYNC;
 	submit_bio(bio);
-	wait_for_completion_io(&ret.event);
+	wait_for_completion_io(&done);
 
-	return ret.error;
+	return blk_status_to_errno(bio->bi_status);
 }
 EXPORT_SYMBOL(submit_bio_wait);
 
@@ -1239,8 +1230,8 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
 	 */
 	bmd->is_our_pages = map_data ? 0 : 1;
 	memcpy(bmd->iov, iter->iov, sizeof(struct iovec) * iter->nr_segs);
-	iov_iter_init(&bmd->iter, iter->type, bmd->iov,
-			iter->nr_segs, iter->count);
+	bmd->iter = *iter;
+	bmd->iter.iov = bmd->iov;
 
 	ret = -ENOMEM;
 	bio = bio_kmalloc(gfp_mask, nr_pages);
@@ -1331,6 +1322,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 	int ret, offset;
 	struct iov_iter i;
 	struct iovec iov;
+	struct bio_vec *bvec;
 
 	iov_for_each(iov, i, *iter) {
 		unsigned long uaddr = (unsigned long) iov.iov_base;
@@ -1375,7 +1367,12 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 		ret = get_user_pages_fast(uaddr, local_nr_pages,
 				(iter->type & WRITE) != WRITE,
 				&pages[cur_page]);
-		if (ret < local_nr_pages) {
+		if (unlikely(ret < local_nr_pages)) {
+			for (j = cur_page; j < page_limit; j++) {
+				if (!pages[j])
+					break;
+				put_page(pages[j]);
+			}
 			ret = -EFAULT;
 			goto out_unmap;
 		}
@@ -1383,6 +1380,7 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 		offset = offset_in_page(uaddr);
 		for (j = cur_page; j < page_limit; j++) {
 			unsigned int bytes = PAGE_SIZE - offset;
+			unsigned short prev_bi_vcnt = bio->bi_vcnt;
 
 			if (len <= 0)
 				break;
@@ -1397,6 +1395,13 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 					    bytes)
 				break;
 
+			/*
+			 * check if vector was merged with previous
+			 * drop page reference if needed
+			 */
+			if (bio->bi_vcnt == prev_bi_vcnt)
+				put_page(pages[j]);
+
 			len -= bytes;
 			offset = 0;
 		}
@@ -1423,10 +1428,8 @@ struct bio *bio_map_user_iov(struct request_queue *q,
 	return bio;
 
  out_unmap:
-	for (j = 0; j < nr_pages; j++) {
-		if (!pages[j])
-			break;
-		put_page(pages[j]);
+	bio_for_each_segment_all(bvec, bio, j) {
+		put_page(bvec->bv_page);
 	}
  out:
 	kfree(pages);
@@ -1928,11 +1931,8 @@ void bioset_free(struct bio_set *bs)
 	if (bs->rescue_workqueue)
 		destroy_workqueue(bs->rescue_workqueue);
 
-	if (bs->bio_pool)
-		mempool_destroy(bs->bio_pool);
-
-	if (bs->bvec_pool)
-		mempool_destroy(bs->bvec_pool);
+	mempool_destroy(bs->bio_pool);
+	mempool_destroy(bs->bvec_pool);
 
 	bioset_integrity_free(bs);
 	bio_put_slab(bs);
@@ -2033,37 +2033,6 @@ int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css)
 EXPORT_SYMBOL_GPL(bio_associate_blkcg);
 
 /**
- * bio_associate_current - associate a bio with %current
- * @bio: target bio
- *
- * Associate @bio with %current if it hasn't been associated yet.  Block
- * layer will treat @bio as if it were issued by %current no matter which
- * task actually issues it.
- *
- * This function takes an extra reference of @task's io_context and blkcg
- * which will be put when @bio is released.  The caller must own @bio,
- * ensure %current->io_context exists, and is responsible for synchronizing
- * calls to this function.
- */
-int bio_associate_current(struct bio *bio)
-{
-	struct io_context *ioc;
-
-	if (bio->bi_css)
-		return -EBUSY;
-
-	ioc = current->io_context;
-	if (!ioc)
-		return -ENOENT;
-
-	get_io_context_active(ioc);
-	bio->bi_ioc = ioc;
-	bio->bi_css = task_get_css(current, io_cgrp_id);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(bio_associate_current);
-
-/**
  * bio_disassociate_task - undo bio_associate_current()
  * @bio: target bio
  */
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index d3f56baee936..4117524ca45b 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -1419,6 +1419,11 @@ int blkcg_policy_register(struct blkcg_policy *pol)
 	if (i >= BLKCG_MAX_POLS)
 		goto err_unlock;
 
+	/* Make sure cpd/pd_alloc_fn and cpd/pd_free_fn in pairs */
+	if ((!pol->cpd_alloc_fn ^ !pol->cpd_free_fn) ||
+		(!pol->pd_alloc_fn ^ !pol->pd_free_fn))
+		goto err_unlock;
+
 	/* register @pol */
 	pol->plid = i;
 	blkcg_policy[pol->plid] = pol;
@@ -1452,7 +1457,7 @@ int blkcg_policy_register(struct blkcg_policy *pol)
 	return 0;
 
 err_free_cpds:
-	if (pol->cpd_alloc_fn) {
+	if (pol->cpd_free_fn) {
 		list_for_each_entry(blkcg, &all_blkcgs, all_blkcgs_node) {
 			if (blkcg->cpd[pol->plid]) {
 				pol->cpd_free_fn(blkcg->cpd[pol->plid]);
@@ -1492,7 +1497,7 @@ void blkcg_policy_unregister(struct blkcg_policy *pol)
 	/* remove cpds and unregister */
 	mutex_lock(&blkcg_pol_mutex);
 
-	if (pol->cpd_alloc_fn) {
+	if (pol->cpd_free_fn) {
 		list_for_each_entry(blkcg, &all_blkcgs, all_blkcgs_node) {
 			if (blkcg->cpd[pol->plid]) {
 				pol->cpd_free_fn(blkcg->cpd[pol->plid]);
diff --git a/block/blk-core.c b/block/blk-core.c
index aebe676225e6..7c54c195e79e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -333,11 +333,13 @@ EXPORT_SYMBOL(blk_stop_queue);
 void blk_sync_queue(struct request_queue *q)
 {
 	del_timer_sync(&q->timeout);
+	cancel_work_sync(&q->timeout_work);
 
 	if (q->mq_ops) {
 		struct blk_mq_hw_ctx *hctx;
 		int i;
 
+		cancel_delayed_work_sync(&q->requeue_work);
 		queue_for_each_hw_ctx(q, hctx, i)
 			cancel_delayed_work_sync(&hctx->run_work);
 	} else {
@@ -347,6 +349,37 @@ void blk_sync_queue(struct request_queue *q)
 EXPORT_SYMBOL(blk_sync_queue);
 
 /**
+ * blk_set_preempt_only - set QUEUE_FLAG_PREEMPT_ONLY
+ * @q: request queue pointer
+ *
+ * Returns the previous value of the PREEMPT_ONLY flag - 0 if the flag was not
+ * set and 1 if the flag was already set.
+ */
+int blk_set_preempt_only(struct request_queue *q)
+{
+	unsigned long flags;
+	int res;
+
+	spin_lock_irqsave(q->queue_lock, flags);
+	res = queue_flag_test_and_set(QUEUE_FLAG_PREEMPT_ONLY, q);
+	spin_unlock_irqrestore(q->queue_lock, flags);
+
+	return res;
+}
+EXPORT_SYMBOL_GPL(blk_set_preempt_only);
+
+void blk_clear_preempt_only(struct request_queue *q)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(q->queue_lock, flags);
+	queue_flag_clear(QUEUE_FLAG_PREEMPT_ONLY, q);
+	wake_up_all(&q->mq_freeze_wq);
+	spin_unlock_irqrestore(q->queue_lock, flags);
+}
+EXPORT_SYMBOL_GPL(blk_clear_preempt_only);
+
+/**
  * __blk_run_queue_uncond - run a queue whether or not it has been stopped
  * @q:	The queue to run
  *
@@ -610,6 +643,9 @@ void blk_set_queue_dying(struct request_queue *q)
 		}
 		spin_unlock_irq(q->queue_lock);
 	}
+
+	/* Make blk_queue_enter() reexamine the DYING flag. */
+	wake_up_all(&q->mq_freeze_wq);
 }
 EXPORT_SYMBOL_GPL(blk_set_queue_dying);
 
@@ -718,7 +754,7 @@ static void free_request_size(void *element, void *data)
 int blk_init_rl(struct request_list *rl, struct request_queue *q,
 		gfp_t gfp_mask)
 {
-	if (unlikely(rl->rq_pool))
+	if (unlikely(rl->rq_pool) || q->mq_ops)
 		return 0;
 
 	rl->q = q;
@@ -760,15 +796,38 @@ struct request_queue *blk_alloc_queue(gfp_t gfp_mask)
 }
 EXPORT_SYMBOL(blk_alloc_queue);
 
-int blk_queue_enter(struct request_queue *q, bool nowait)
+/**
+ * blk_queue_enter() - try to increase q->q_usage_counter
+ * @q: request queue pointer
+ * @flags: BLK_MQ_REQ_NOWAIT and/or BLK_MQ_REQ_PREEMPT
+ */
+int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags)
 {
+	const bool preempt = flags & BLK_MQ_REQ_PREEMPT;
+
 	while (true) {
+		bool success = false;
 		int ret;
 
-		if (percpu_ref_tryget_live(&q->q_usage_counter))
+		rcu_read_lock_sched();
+		if (percpu_ref_tryget_live(&q->q_usage_counter)) {
+			/*
+			 * The code that sets the PREEMPT_ONLY flag is
+			 * responsible for ensuring that that flag is globally
+			 * visible before the queue is unfrozen.
+			 */
+			if (preempt || !blk_queue_preempt_only(q)) {
+				success = true;
+			} else {
+				percpu_ref_put(&q->q_usage_counter);
+			}
+		}
+		rcu_read_unlock_sched();
+
+		if (success)
 			return 0;
 
-		if (nowait)
+		if (flags & BLK_MQ_REQ_NOWAIT)
 			return -EBUSY;
 
 		/*
@@ -781,7 +840,8 @@ int blk_queue_enter(struct request_queue *q, bool nowait)
 		smp_rmb();
 
 		ret = wait_event_interruptible(q->mq_freeze_wq,
-				!atomic_read(&q->mq_freeze_depth) ||
+				(atomic_read(&q->mq_freeze_depth) == 0 &&
+				 (preempt || !blk_queue_preempt_only(q))) ||
 				blk_queue_dying(q));
 		if (blk_queue_dying(q))
 			return -ENODEV;
@@ -844,6 +904,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 	setup_timer(&q->backing_dev_info->laptop_mode_wb_timer,
 		    laptop_mode_timer_fn, (unsigned long) q);
 	setup_timer(&q->timeout, blk_rq_timed_out_timer, (unsigned long) q);
+	INIT_WORK(&q->timeout_work, NULL);
 	INIT_LIST_HEAD(&q->queue_head);
 	INIT_LIST_HEAD(&q->timeout_list);
 	INIT_LIST_HEAD(&q->icq_list);
@@ -854,6 +915,9 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 
 	kobject_init(&q->kobj, &blk_queue_ktype);
 
+#ifdef CONFIG_BLK_DEV_IO_TRACE
+	mutex_init(&q->blk_trace_mutex);
+#endif
 	mutex_init(&q->sysfs_lock);
 	spin_lock_init(&q->__queue_lock);
 
@@ -1151,7 +1215,7 @@ int blk_update_nr_requests(struct request_queue *q, unsigned int nr)
  * @rl: request list to allocate from
  * @op: operation and flags
  * @bio: bio to allocate request for (can be %NULL)
- * @gfp_mask: allocation mask
+ * @flags: BLQ_MQ_REQ_* flags
  *
  * Get a free request from @q.  This function may fail under memory
  * pressure or if @q is dead.
@@ -1161,7 +1225,7 @@ int blk_update_nr_requests(struct request_queue *q, unsigned int nr)
  * Returns request pointer on success, with @q->queue_lock *not held*.
  */
 static struct request *__get_request(struct request_list *rl, unsigned int op,
-		struct bio *bio, gfp_t gfp_mask)
+				     struct bio *bio, blk_mq_req_flags_t flags)
 {
 	struct request_queue *q = rl->q;
 	struct request *rq;
@@ -1170,6 +1234,8 @@ static struct request *__get_request(struct request_list *rl, unsigned int op,
 	struct io_cq *icq = NULL;
 	const bool is_sync = op_is_sync(op);
 	int may_queue;
+	gfp_t gfp_mask = flags & BLK_MQ_REQ_NOWAIT ? GFP_ATOMIC :
+			 __GFP_DIRECT_RECLAIM;
 	req_flags_t rq_flags = RQF_ALLOCED;
 
 	lockdep_assert_held(q->queue_lock);
@@ -1252,6 +1318,8 @@ static struct request *__get_request(struct request_list *rl, unsigned int op,
 	blk_rq_set_rl(rq, rl);
 	rq->cmd_flags = op;
 	rq->rq_flags = rq_flags;
+	if (flags & BLK_MQ_REQ_PREEMPT)
+		rq->rq_flags |= RQF_PREEMPT;
 
 	/* init elvpriv */
 	if (rq_flags & RQF_ELVPRIV) {
@@ -1330,7 +1398,7 @@ rq_starved:
  * @q: request_queue to allocate request from
  * @op: operation and flags
  * @bio: bio to allocate request for (can be %NULL)
- * @gfp_mask: allocation mask
+ * @flags: BLK_MQ_REQ_* flags.
  *
  * Get a free request from @q.  If %__GFP_DIRECT_RECLAIM is set in @gfp_mask,
  * this function keeps retrying under memory pressure and fails iff @q is dead.
@@ -1340,7 +1408,7 @@ rq_starved:
  * Returns request pointer on success, with @q->queue_lock *not held*.
  */
 static struct request *get_request(struct request_queue *q, unsigned int op,
-		struct bio *bio, gfp_t gfp_mask)
+				   struct bio *bio, blk_mq_req_flags_t flags)
 {
 	const bool is_sync = op_is_sync(op);
 	DEFINE_WAIT(wait);
@@ -1352,7 +1420,7 @@ static struct request *get_request(struct request_queue *q, unsigned int op,
 
 	rl = blk_get_rl(q, bio);	/* transferred to @rq on success */
 retry:
-	rq = __get_request(rl, op, bio, gfp_mask);
+	rq = __get_request(rl, op, bio, flags);
 	if (!IS_ERR(rq))
 		return rq;
 
@@ -1361,7 +1429,7 @@ retry:
 		return ERR_PTR(-EAGAIN);
 	}
 
-	if (!gfpflags_allow_blocking(gfp_mask) || unlikely(blk_queue_dying(q))) {
+	if ((flags & BLK_MQ_REQ_NOWAIT) || unlikely(blk_queue_dying(q))) {
 		blk_put_rl(rl);
 		return rq;
 	}
@@ -1388,20 +1456,28 @@ retry:
 	goto retry;
 }
 
+/* flags: BLK_MQ_REQ_PREEMPT and/or BLK_MQ_REQ_NOWAIT. */
 static struct request *blk_old_get_request(struct request_queue *q,
-					   unsigned int op, gfp_t gfp_mask)
+				unsigned int op, blk_mq_req_flags_t flags)
 {
 	struct request *rq;
+	gfp_t gfp_mask = flags & BLK_MQ_REQ_NOWAIT ? GFP_ATOMIC :
+			 __GFP_DIRECT_RECLAIM;
+	int ret = 0;
 
 	WARN_ON_ONCE(q->mq_ops);
 
 	/* create ioc upfront */
 	create_io_context(gfp_mask, q->node);
 
+	ret = blk_queue_enter(q, flags);
+	if (ret)
+		return ERR_PTR(ret);
 	spin_lock_irq(q->queue_lock);
-	rq = get_request(q, op, NULL, gfp_mask);
+	rq = get_request(q, op, NULL, flags);
 	if (IS_ERR(rq)) {
 		spin_unlock_irq(q->queue_lock);
+		blk_queue_exit(q);
 		return rq;
 	}
 
@@ -1412,25 +1488,40 @@ static struct request *blk_old_get_request(struct request_queue *q,
 	return rq;
 }
 
-struct request *blk_get_request(struct request_queue *q, unsigned int op,
-				gfp_t gfp_mask)
+/**
+ * blk_get_request_flags - allocate a request
+ * @q: request queue to allocate a request for
+ * @op: operation (REQ_OP_*) and REQ_* flags, e.g. REQ_SYNC.
+ * @flags: BLK_MQ_REQ_* flags, e.g. BLK_MQ_REQ_NOWAIT.
+ */
+struct request *blk_get_request_flags(struct request_queue *q, unsigned int op,
+				      blk_mq_req_flags_t flags)
 {
 	struct request *req;
 
+	WARN_ON_ONCE(op & REQ_NOWAIT);
+	WARN_ON_ONCE(flags & ~(BLK_MQ_REQ_NOWAIT | BLK_MQ_REQ_PREEMPT));
+
 	if (q->mq_ops) {
-		req = blk_mq_alloc_request(q, op,
-			(gfp_mask & __GFP_DIRECT_RECLAIM) ?
-				0 : BLK_MQ_REQ_NOWAIT);
+		req = blk_mq_alloc_request(q, op, flags);
 		if (!IS_ERR(req) && q->mq_ops->initialize_rq_fn)
 			q->mq_ops->initialize_rq_fn(req);
 	} else {
-		req = blk_old_get_request(q, op, gfp_mask);
+		req = blk_old_get_request(q, op, flags);
 		if (!IS_ERR(req) && q->initialize_rq_fn)
 			q->initialize_rq_fn(req);
 	}
 
 	return req;
 }
+EXPORT_SYMBOL(blk_get_request_flags);
+
+struct request *blk_get_request(struct request_queue *q, unsigned int op,
+				gfp_t gfp_mask)
+{
+	return blk_get_request_flags(q, op, gfp_mask & __GFP_DIRECT_RECLAIM ?
+				     0 : BLK_MQ_REQ_NOWAIT);
+}
 EXPORT_SYMBOL(blk_get_request);
 
 /**
@@ -1573,6 +1664,7 @@ void __blk_put_request(struct request_queue *q, struct request *req)
 		blk_free_request(rl, req);
 		freed_request(rl, sync, rq_flags);
 		blk_put_rl(rl);
+		blk_queue_exit(q);
 	}
 }
 EXPORT_SYMBOL_GPL(__blk_put_request);
@@ -1854,8 +1946,10 @@ get_rq:
 	 * Grab a free request. This is might sleep but can not fail.
 	 * Returns with the queue unlocked.
 	 */
-	req = get_request(q, bio->bi_opf, bio, GFP_NOIO);
+	blk_queue_enter_live(q);
+	req = get_request(q, bio->bi_opf, bio, 0);
 	if (IS_ERR(req)) {
+		blk_queue_exit(q);
 		__wbt_done(q->rq_wb, wb_acct);
 		if (PTR_ERR(req) == -ENOMEM)
 			bio->bi_status = BLK_STS_RESOURCE;
@@ -2197,8 +2291,10 @@ blk_qc_t generic_make_request(struct bio *bio)
 	current->bio_list = bio_list_on_stack;
 	do {
 		struct request_queue *q = bio->bi_disk->queue;
+		blk_mq_req_flags_t flags = bio->bi_opf & REQ_NOWAIT ?
+			BLK_MQ_REQ_NOWAIT : 0;
 
-		if (likely(blk_queue_enter(q, bio->bi_opf & REQ_NOWAIT) == 0)) {
+		if (likely(blk_queue_enter(q, flags) == 0)) {
 			struct bio_list lower, same;
 
 			/* Create a fresh bio_list for all subordinate requests */
@@ -2239,6 +2335,40 @@ out:
 EXPORT_SYMBOL(generic_make_request);
 
 /**
+ * direct_make_request - hand a buffer directly to its device driver for I/O
+ * @bio:  The bio describing the location in memory and on the device.
+ *
+ * This function behaves like generic_make_request(), but does not protect
+ * against recursion.  Must only be used if the called driver is known
+ * to not call generic_make_request (or direct_make_request) again from
+ * its make_request function.  (Calling direct_make_request again from
+ * a workqueue is perfectly fine as that doesn't recurse).
+ */
+blk_qc_t direct_make_request(struct bio *bio)
+{
+	struct request_queue *q = bio->bi_disk->queue;
+	bool nowait = bio->bi_opf & REQ_NOWAIT;
+	blk_qc_t ret;
+
+	if (!generic_make_request_checks(bio))
+		return BLK_QC_T_NONE;
+
+	if (unlikely(blk_queue_enter(q, nowait ? BLK_MQ_REQ_NOWAIT : 0))) {
+		if (nowait && !blk_queue_dying(q))
+			bio->bi_status = BLK_STS_AGAIN;
+		else
+			bio->bi_status = BLK_STS_IOERR;
+		bio_endio(bio);
+		return BLK_QC_T_NONE;
+	}
+
+	ret = q->make_request_fn(q, bio);
+	blk_queue_exit(q);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(direct_make_request);
+
+/**
  * submit_bio - submit a bio to the block device layer for I/O
  * @bio: The &struct bio which describes the I/O
  *
@@ -2282,6 +2412,17 @@ blk_qc_t submit_bio(struct bio *bio)
 }
 EXPORT_SYMBOL(submit_bio);
 
+bool blk_poll(struct request_queue *q, blk_qc_t cookie)
+{
+	if (!q->poll_fn || !blk_qc_t_valid(cookie))
+		return false;
+
+	if (current->plug)
+		blk_flush_plug_list(current->plug, false);
+	return q->poll_fn(q, cookie);
+}
+EXPORT_SYMBOL_GPL(blk_poll);
+
 /**
  * blk_cloned_rq_check_limits - Helper function to check a cloned request
  *                              for new the queue limits
@@ -2347,7 +2488,7 @@ blk_status_t blk_insert_cloned_request(struct request_queue *q, struct request *
 		 * bypass a potential scheduler on the bottom device for
 		 * insert.
 		 */
-		blk_mq_request_bypass_insert(rq);
+		blk_mq_request_bypass_insert(rq, true);
 		return BLK_STS_OK;
 	}
 
@@ -2461,20 +2602,22 @@ void blk_account_io_done(struct request *req)
  * Don't process normal requests when queue is suspended
  * or in the process of suspending/resuming
  */
-static struct request *blk_pm_peek_request(struct request_queue *q,
-					   struct request *rq)
+static bool blk_pm_allow_request(struct request *rq)
 {
-	if (q->dev && (q->rpm_status == RPM_SUSPENDED ||
-	    (q->rpm_status != RPM_ACTIVE && !(rq->rq_flags & RQF_PM))))
-		return NULL;
-	else
-		return rq;
+	switch (rq->q->rpm_status) {
+	case RPM_RESUMING:
+	case RPM_SUSPENDING:
+		return rq->rq_flags & RQF_PM;
+	case RPM_SUSPENDED:
+		return false;
+	}
+
+	return true;
 }
 #else
-static inline struct request *blk_pm_peek_request(struct request_queue *q,
-						  struct request *rq)
+static bool blk_pm_allow_request(struct request *rq)
 {
-	return rq;
+	return true;
 }
 #endif
 
@@ -2514,6 +2657,48 @@ void blk_account_io_start(struct request *rq, bool new_io)
 	part_stat_unlock();
 }
 
+static struct request *elv_next_request(struct request_queue *q)
+{
+	struct request *rq;
+	struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);
+
+	WARN_ON_ONCE(q->mq_ops);
+
+	while (1) {
+		list_for_each_entry(rq, &q->queue_head, queuelist) {
+			if (blk_pm_allow_request(rq))
+				return rq;
+
+			if (rq->rq_flags & RQF_SOFTBARRIER)
+				break;
+		}
+
+		/*
+		 * Flush request is running and flush request isn't queueable
+		 * in the drive, we can hold the queue till flush request is
+		 * finished. Even we don't do this, driver can't dispatch next
+		 * requests and will requeue them. And this can improve
+		 * throughput too. For example, we have request flush1, write1,
+		 * flush 2. flush1 is dispatched, then queue is hold, write1
+		 * isn't inserted to queue. After flush1 is finished, flush2
+		 * will be dispatched. Since disk cache is already clean,
+		 * flush2 will be finished very soon, so looks like flush2 is
+		 * folded to flush1.
+		 * Since the queue is hold, a flag is set to indicate the queue
+		 * should be restarted later. Please see flush_end_io() for
+		 * details.
+		 */
+		if (fq->flush_pending_idx != fq->flush_running_idx &&
+				!queue_flush_queueable(q)) {
+			fq->flush_queue_delayed = 1;
+			return NULL;
+		}
+		if (unlikely(blk_queue_bypass(q)) ||
+		    !q->elevator->type->ops.sq.elevator_dispatch_fn(q, 0))
+			return NULL;
+	}
+}
+
 /**
  * blk_peek_request - peek at the top of a request queue
  * @q: request queue to peek at
@@ -2535,12 +2720,7 @@ struct request *blk_peek_request(struct request_queue *q)
 	lockdep_assert_held(q->queue_lock);
 	WARN_ON_ONCE(q->mq_ops);
 
-	while ((rq = __elv_next_request(q)) != NULL) {
-
-		rq = blk_pm_peek_request(q, rq);
-		if (!rq)
-			break;
-
+	while ((rq = elv_next_request(q)) != NULL) {
 		if (!(rq->rq_flags & RQF_STARTED)) {
 			/*
 			 * This is the first time the device driver
@@ -2692,6 +2872,27 @@ struct request *blk_fetch_request(struct request_queue *q)
 }
 EXPORT_SYMBOL(blk_fetch_request);
 
+/*
+ * Steal bios from a request and add them to a bio list.
+ * The request must not have been partially completed before.
+ */
+void blk_steal_bios(struct bio_list *list, struct request *rq)
+{
+	if (rq->bio) {
+		if (list->tail)
+			list->tail->bi_next = rq->bio;
+		else
+			list->head = rq->bio;
+		list->tail = rq->biotail;
+
+		rq->bio = NULL;
+		rq->biotail = NULL;
+	}
+
+	rq->__data_len = 0;
+}
+EXPORT_SYMBOL_GPL(blk_steal_bios);
+
 /**
  * blk_update_request - Special helper function for request stacking drivers
  * @req:      the request being processed
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 4938bec8cfef..f17170675917 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -231,8 +231,13 @@ static void flush_end_io(struct request *flush_rq, blk_status_t error)
 		/* release the tag's ownership to the req cloned from */
 		spin_lock_irqsave(&fq->mq_flush_lock, flags);
 		hctx = blk_mq_map_queue(q, flush_rq->mq_ctx->cpu);
-		blk_mq_tag_set_rq(hctx, flush_rq->tag, fq->orig_rq);
-		flush_rq->tag = -1;
+		if (!q->elevator) {
+			blk_mq_tag_set_rq(hctx, flush_rq->tag, fq->orig_rq);
+			flush_rq->tag = -1;
+		} else {
+			blk_mq_put_driver_tag_hctx(hctx, flush_rq);
+			flush_rq->internal_tag = -1;
+		}
 	}
 
 	running = &fq->flush_queue[fq->flush_running_idx];
@@ -318,19 +323,26 @@ static bool blk_kick_flush(struct request_queue *q, struct blk_flush_queue *fq)
 	blk_rq_init(q, flush_rq);
 
 	/*
-	 * Borrow tag from the first request since they can't
-	 * be in flight at the same time. And acquire the tag's
-	 * ownership for flush req.
+	 * In case of none scheduler, borrow tag from the first request
+	 * since they can't be in flight at the same time. And acquire
+	 * the tag's ownership for flush req.
+	 *
+	 * In case of IO scheduler, flush rq need to borrow scheduler tag
+	 * just for cheating put/get driver tag.
 	 */
 	if (q->mq_ops) {
 		struct blk_mq_hw_ctx *hctx;
 
 		flush_rq->mq_ctx = first_rq->mq_ctx;
-		flush_rq->tag = first_rq->tag;
-		fq->orig_rq = first_rq;
 
-		hctx = blk_mq_map_queue(q, first_rq->mq_ctx->cpu);
-		blk_mq_tag_set_rq(hctx, first_rq->tag, flush_rq);
+		if (!q->elevator) {
+			fq->orig_rq = first_rq;
+			flush_rq->tag = first_rq->tag;
+			hctx = blk_mq_map_queue(q, first_rq->mq_ctx->cpu);
+			blk_mq_tag_set_rq(hctx, first_rq->tag, flush_rq);
+		} else {
+			flush_rq->internal_tag = first_rq->internal_tag;
+		}
 	}
 
 	flush_rq->cmd_flags = REQ_OP_FLUSH | REQ_PREFLUSH;
@@ -394,6 +406,11 @@ static void mq_flush_data_end_io(struct request *rq, blk_status_t error)
 
 	hctx = blk_mq_map_queue(q, ctx->cpu);
 
+	if (q->elevator) {
+		WARN_ON(rq->tag < 0);
+		blk_mq_put_driver_tag_hctx(hctx, rq);
+	}
+
 	/*
 	 * After populating an empty queue, kick it to avoid stall.  Read
 	 * the comment in flush_end_io().
@@ -463,7 +480,7 @@ void blk_insert_flush(struct request *rq)
 	if ((policy & REQ_FSEQ_DATA) &&
 	    !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) {
 		if (q->mq_ops)
-			blk_mq_sched_insert_request(rq, false, true, false, false);
+			blk_mq_request_bypass_insert(rq, false);
 		else
 			list_add_tail(&rq->queuelist, &q->queue_head);
 		return;
diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index 63898d229cb9..f23311e4b201 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to io context handling
  */
diff --git a/block/blk-lib.c b/block/blk-lib.c
index 62240f8832ca..2bc544ce3d2e 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to generic helpers functions
  */
@@ -274,6 +275,40 @@ static unsigned int __blkdev_sectors_to_bio_pages(sector_t nr_sects)
 	return min(pages, (sector_t)BIO_MAX_PAGES);
 }
 
+static int __blkdev_issue_zero_pages(struct block_device *bdev,
+		sector_t sector, sector_t nr_sects, gfp_t gfp_mask,
+		struct bio **biop)
+{
+	struct request_queue *q = bdev_get_queue(bdev);
+	struct bio *bio = *biop;
+	int bi_size = 0;
+	unsigned int sz;
+
+	if (!q)
+		return -ENXIO;
+
+	while (nr_sects != 0) {
+		bio = next_bio(bio, __blkdev_sectors_to_bio_pages(nr_sects),
+			       gfp_mask);
+		bio->bi_iter.bi_sector = sector;
+		bio_set_dev(bio, bdev);
+		bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
+
+		while (nr_sects != 0) {
+			sz = min((sector_t) PAGE_SIZE, nr_sects << 9);
+			bi_size = bio_add_page(bio, ZERO_PAGE(0), sz, 0);
+			nr_sects -= bi_size >> 9;
+			sector += bi_size >> 9;
+			if (bi_size < sz)
+				break;
+		}
+		cond_resched();
+	}
+
+	*biop = bio;
+	return 0;
+}
+
 /**
  * __blkdev_issue_zeroout - generate number of zero filed write bios
  * @bdev:	blockdev to issue
@@ -287,12 +322,6 @@ static unsigned int __blkdev_sectors_to_bio_pages(sector_t nr_sects)
  *  Zero-fill a block range, either using hardware offload or by explicitly
  *  writing zeroes to the device.
  *
- *  Note that this function may fail with -EOPNOTSUPP if the driver signals
- *  zeroing offload support, but the device fails to process the command (for
- *  some devices there is no non-destructive way to verify whether this
- *  operation is actually supported).  In this case the caller should call
- *  retry the call to blkdev_issue_zeroout() and the fallback path will be used.
- *
  *  If a device is using logical block provisioning, the underlying space will
  *  not be released if %flags contains BLKDEV_ZERO_NOUNMAP.
  *
@@ -304,9 +333,6 @@ int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
 		unsigned flags)
 {
 	int ret;
-	int bi_size = 0;
-	struct bio *bio = *biop;
-	unsigned int sz;
 	sector_t bs_mask;
 
 	bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
@@ -316,30 +342,10 @@ int __blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
 	ret = __blkdev_issue_write_zeroes(bdev, sector, nr_sects, gfp_mask,
 			biop, flags);
 	if (ret != -EOPNOTSUPP || (flags & BLKDEV_ZERO_NOFALLBACK))
-		goto out;
-
-	ret = 0;
-	while (nr_sects != 0) {
-		bio = next_bio(bio, __blkdev_sectors_to_bio_pages(nr_sects),
-			       gfp_mask);
-		bio->bi_iter.bi_sector = sector;
-		bio_set_dev(bio, bdev);
-		bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
-
-		while (nr_sects != 0) {
-			sz = min((sector_t) PAGE_SIZE, nr_sects << 9);
-			bi_size = bio_add_page(bio, ZERO_PAGE(0), sz, 0);
-			nr_sects -= bi_size >> 9;
-			sector += bi_size >> 9;
-			if (bi_size < sz)
-				break;
-		}
-		cond_resched();
-	}
+		return ret;
 
-	*biop = bio;
-out:
-	return ret;
+	return __blkdev_issue_zero_pages(bdev, sector, nr_sects, gfp_mask,
+					 biop);
 }
 EXPORT_SYMBOL(__blkdev_issue_zeroout);
 
@@ -359,18 +365,49 @@ EXPORT_SYMBOL(__blkdev_issue_zeroout);
 int blkdev_issue_zeroout(struct block_device *bdev, sector_t sector,
 		sector_t nr_sects, gfp_t gfp_mask, unsigned flags)
 {
-	int ret;
-	struct bio *bio = NULL;
+	int ret = 0;
+	sector_t bs_mask;
+	struct bio *bio;
 	struct blk_plug plug;
+	bool try_write_zeroes = !!bdev_write_zeroes_sectors(bdev);
 
+	bs_mask = (bdev_logical_block_size(bdev) >> 9) - 1;
+	if ((sector | nr_sects) & bs_mask)
+		return -EINVAL;
+
+retry:
+	bio = NULL;
 	blk_start_plug(&plug);
-	ret = __blkdev_issue_zeroout(bdev, sector, nr_sects, gfp_mask,
-			&bio, flags);
+	if (try_write_zeroes) {
+		ret = __blkdev_issue_write_zeroes(bdev, sector, nr_sects,
+						  gfp_mask, &bio, flags);
+	} else if (!(flags & BLKDEV_ZERO_NOFALLBACK)) {
+		ret = __blkdev_issue_zero_pages(bdev, sector, nr_sects,
+						gfp_mask, &bio);
+	} else {
+		/* No zeroing offload support */
+		ret = -EOPNOTSUPP;
+	}
 	if (ret == 0 && bio) {
 		ret = submit_bio_wait(bio);
 		bio_put(bio);
 	}
 	blk_finish_plug(&plug);
+	if (ret && try_write_zeroes) {
+		if (!(flags & BLKDEV_ZERO_NOFALLBACK)) {
+			try_write_zeroes = false;
+			goto retry;
+		}
+		if (!bdev_write_zeroes_sectors(bdev)) {
+			/*
+			 * Zeroing offload support was indicated, but the
+			 * device reported ILLEGAL REQUEST (for some devices
+			 * there is no non-destructive way to verify whether
+			 * WRITE ZEROES is actually supported).
+			 */
+			ret = -EOPNOTSUPP;
+		}
+	}
 
 	return ret;
 }
diff --git a/block/blk-map.c b/block/blk-map.c
index 2547016aa7aa..d5251edcc0dd 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to mapping data to requests
  */
diff --git a/block/blk-merge.c b/block/blk-merge.c
index aa524cad5bea..f5dedd57dff6 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to segment and merge handling
  */
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c
index 980e73095643..b56a4f35720d 100644
--- a/block/blk-mq-debugfs.c
+++ b/block/blk-mq-debugfs.c
@@ -54,7 +54,6 @@ static const char *const blk_queue_flag_name[] = {
 	QUEUE_FLAG_NAME(NOMERGES),
 	QUEUE_FLAG_NAME(SAME_COMP),
 	QUEUE_FLAG_NAME(FAIL_IO),
-	QUEUE_FLAG_NAME(STACKABLE),
 	QUEUE_FLAG_NAME(NONROT),
 	QUEUE_FLAG_NAME(IO_STAT),
 	QUEUE_FLAG_NAME(DISCARD),
@@ -75,6 +74,7 @@ static const char *const blk_queue_flag_name[] = {
 	QUEUE_FLAG_NAME(REGISTERED),
 	QUEUE_FLAG_NAME(SCSI_PASSTHROUGH),
 	QUEUE_FLAG_NAME(QUIESCED),
+	QUEUE_FLAG_NAME(PREEMPT_ONLY),
 };
 #undef QUEUE_FLAG_NAME
 
@@ -180,7 +180,6 @@ static const char *const hctx_state_name[] = {
 	HCTX_STATE_NAME(STOPPED),
 	HCTX_STATE_NAME(TAG_ACTIVE),
 	HCTX_STATE_NAME(SCHED_RESTART),
-	HCTX_STATE_NAME(TAG_WAITING),
 	HCTX_STATE_NAME(START_ON_RUN),
 };
 #undef HCTX_STATE_NAME
@@ -815,10 +814,14 @@ int blk_mq_debugfs_register(struct request_queue *q)
 		goto err;
 
 	/*
-	 * blk_mq_init_hctx() attempted to do this already, but q->debugfs_dir
+	 * blk_mq_init_sched() attempted to do this already, but q->debugfs_dir
 	 * didn't exist yet (because we don't know what to name the directory
 	 * until the queue is registered to a gendisk).
 	 */
+	if (q->elevator && !q->sched_debugfs_dir)
+		blk_mq_debugfs_register_sched(q);
+
+	/* Similarly, blk_mq_init_hctx() couldn't do this previously. */
 	queue_for_each_hw_ctx(q, hctx, i) {
 		if (!hctx->debugfs_dir && blk_mq_debugfs_register_hctx(q, hctx))
 			goto err;
diff --git a/block/blk-mq-debugfs.h b/block/blk-mq-debugfs.h
index a182e6f97565..b9d366e57097 100644
--- a/block/blk-mq-debugfs.h
+++ b/block/blk-mq-debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef INT_BLK_MQ_DEBUGFS_H
 #define INT_BLK_MQ_DEBUGFS_H
 
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 4ab69435708c..c117bd8fd1f6 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -81,20 +81,103 @@ static bool blk_mq_sched_restart_hctx(struct blk_mq_hw_ctx *hctx)
 	} else
 		clear_bit(BLK_MQ_S_SCHED_RESTART, &hctx->state);
 
-	if (blk_mq_hctx_has_pending(hctx)) {
-		blk_mq_run_hw_queue(hctx, true);
-		return true;
-	}
+	return blk_mq_run_hw_queue(hctx, true);
+}
 
-	return false;
+/*
+ * Only SCSI implements .get_budget and .put_budget, and SCSI restarts
+ * its queue by itself in its completion handler, so we don't need to
+ * restart queue if .get_budget() returns BLK_STS_NO_RESOURCE.
+ */
+static void blk_mq_do_dispatch_sched(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+	struct elevator_queue *e = q->elevator;
+	LIST_HEAD(rq_list);
+
+	do {
+		struct request *rq;
+
+		if (e->type->ops.mq.has_work &&
+				!e->type->ops.mq.has_work(hctx))
+			break;
+
+		if (!blk_mq_get_dispatch_budget(hctx))
+			break;
+
+		rq = e->type->ops.mq.dispatch_request(hctx);
+		if (!rq) {
+			blk_mq_put_dispatch_budget(hctx);
+			break;
+		}
+
+		/*
+		 * Now this rq owns the budget which has to be released
+		 * if this rq won't be queued to driver via .queue_rq()
+		 * in blk_mq_dispatch_rq_list().
+		 */
+		list_add(&rq->queuelist, &rq_list);
+	} while (blk_mq_dispatch_rq_list(q, &rq_list, true));
 }
 
+static struct blk_mq_ctx *blk_mq_next_ctx(struct blk_mq_hw_ctx *hctx,
+					  struct blk_mq_ctx *ctx)
+{
+	unsigned idx = ctx->index_hw;
+
+	if (++idx == hctx->nr_ctx)
+		idx = 0;
+
+	return hctx->ctxs[idx];
+}
+
+/*
+ * Only SCSI implements .get_budget and .put_budget, and SCSI restarts
+ * its queue by itself in its completion handler, so we don't need to
+ * restart queue if .get_budget() returns BLK_STS_NO_RESOURCE.
+ */
+static void blk_mq_do_dispatch_ctx(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+	LIST_HEAD(rq_list);
+	struct blk_mq_ctx *ctx = READ_ONCE(hctx->dispatch_from);
+
+	do {
+		struct request *rq;
+
+		if (!sbitmap_any_bit_set(&hctx->ctx_map))
+			break;
+
+		if (!blk_mq_get_dispatch_budget(hctx))
+			break;
+
+		rq = blk_mq_dequeue_from_ctx(hctx, ctx);
+		if (!rq) {
+			blk_mq_put_dispatch_budget(hctx);
+			break;
+		}
+
+		/*
+		 * Now this rq owns the budget which has to be released
+		 * if this rq won't be queued to driver via .queue_rq()
+		 * in blk_mq_dispatch_rq_list().
+		 */
+		list_add(&rq->queuelist, &rq_list);
+
+		/* round robin for fair dispatch */
+		ctx = blk_mq_next_ctx(hctx, rq->mq_ctx);
+
+	} while (blk_mq_dispatch_rq_list(q, &rq_list, true));
+
+	WRITE_ONCE(hctx->dispatch_from, ctx);
+}
+
+/* return true if hw queue need to be run again */
 void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
 {
 	struct request_queue *q = hctx->queue;
 	struct elevator_queue *e = q->elevator;
 	const bool has_sched_dispatch = e && e->type->ops.mq.dispatch_request;
-	bool did_work = false;
 	LIST_HEAD(rq_list);
 
 	/* RCU or SRCU read lock is needed before checking quiesced flag */
@@ -122,29 +205,34 @@ void blk_mq_sched_dispatch_requests(struct blk_mq_hw_ctx *hctx)
 	 * scheduler, we can no longer merge or sort them. So it's best to
 	 * leave them there for as long as we can. Mark the hw queue as
 	 * needing a restart in that case.
+	 *
+	 * We want to dispatch from the scheduler if there was nothing
+	 * on the dispatch list or we were able to dispatch from the
+	 * dispatch list.
 	 */
 	if (!list_empty(&rq_list)) {
 		blk_mq_sched_mark_restart_hctx(hctx);
-		did_work = blk_mq_dispatch_rq_list(q, &rq_list);
-	} else if (!has_sched_dispatch) {
+		if (blk_mq_dispatch_rq_list(q, &rq_list, false)) {
+			if (has_sched_dispatch)
+				blk_mq_do_dispatch_sched(hctx);
+			else
+				blk_mq_do_dispatch_ctx(hctx);
+		}
+	} else if (has_sched_dispatch) {
+		blk_mq_do_dispatch_sched(hctx);
+	} else if (q->mq_ops->get_budget) {
+		/*
+		 * If we need to get budget before queuing request, we
+		 * dequeue request one by one from sw queue for avoiding
+		 * to mess up I/O merge when dispatch runs out of resource.
+		 *
+		 * TODO: get more budgets, and dequeue more requests in
+		 * one time.
+		 */
+		blk_mq_do_dispatch_ctx(hctx);
+	} else {
 		blk_mq_flush_busy_ctxs(hctx, &rq_list);
-		blk_mq_dispatch_rq_list(q, &rq_list);
-	}
-
-	/*
-	 * We want to dispatch from the scheduler if we had no work left
-	 * on the dispatch list, OR if we did have work but weren't able
-	 * to make progress.
-	 */
-	if (!did_work && has_sched_dispatch) {
-		do {
-			struct request *rq;
-
-			rq = e->type->ops.mq.dispatch_request(hctx);
-			if (!rq)
-				break;
-			list_add(&rq->queuelist, &rq_list);
-		} while (blk_mq_dispatch_rq_list(q, &rq_list));
+		blk_mq_dispatch_rq_list(q, &rq_list, false);
 	}
 }
 
@@ -260,21 +348,21 @@ void blk_mq_sched_request_inserted(struct request *rq)
 EXPORT_SYMBOL_GPL(blk_mq_sched_request_inserted);
 
 static bool blk_mq_sched_bypass_insert(struct blk_mq_hw_ctx *hctx,
+				       bool has_sched,
 				       struct request *rq)
 {
-	if (rq->tag == -1) {
-		rq->rq_flags |= RQF_SORTED;
-		return false;
+	/* dispatch flush rq directly */
+	if (rq->rq_flags & RQF_FLUSH_SEQ) {
+		spin_lock(&hctx->lock);
+		list_add(&rq->queuelist, &hctx->dispatch);
+		spin_unlock(&hctx->lock);
+		return true;
 	}
 
-	/*
-	 * If we already have a real request tag, send directly to
-	 * the dispatch list.
-	 */
-	spin_lock(&hctx->lock);
-	list_add(&rq->queuelist, &hctx->dispatch);
-	spin_unlock(&hctx->lock);
-	return true;
+	if (has_sched)
+		rq->rq_flags |= RQF_SORTED;
+
+	return false;
 }
 
 /**
@@ -339,21 +427,6 @@ done:
 	}
 }
 
-/*
- * Add flush/fua to the queue. If we fail getting a driver tag, then
- * punt to the requeue list. Requeue will re-invoke us from a context
- * that's safe to block from.
- */
-static void blk_mq_sched_insert_flush(struct blk_mq_hw_ctx *hctx,
-				      struct request *rq, bool can_block)
-{
-	if (blk_mq_get_driver_tag(rq, &hctx, can_block)) {
-		blk_insert_flush(rq);
-		blk_mq_run_hw_queue(hctx, true);
-	} else
-		blk_mq_add_to_requeue_list(rq, false, true);
-}
-
 void blk_mq_sched_insert_request(struct request *rq, bool at_head,
 				 bool run_queue, bool async, bool can_block)
 {
@@ -362,12 +435,15 @@ void blk_mq_sched_insert_request(struct request *rq, bool at_head,
 	struct blk_mq_ctx *ctx = rq->mq_ctx;
 	struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu);
 
-	if (rq->tag == -1 && op_is_flush(rq->cmd_flags)) {
-		blk_mq_sched_insert_flush(hctx, rq, can_block);
-		return;
+	/* flush rq in flush machinery need to be dispatched directly */
+	if (!(rq->rq_flags & RQF_FLUSH_SEQ) && op_is_flush(rq->cmd_flags)) {
+		blk_insert_flush(rq);
+		goto run;
 	}
 
-	if (e && blk_mq_sched_bypass_insert(hctx, rq))
+	WARN_ON(e && (rq->tag != -1));
+
+	if (blk_mq_sched_bypass_insert(hctx, !!e, rq))
 		goto run;
 
 	if (e && e->type->ops.mq.insert_requests) {
@@ -393,23 +469,6 @@ void blk_mq_sched_insert_requests(struct request_queue *q,
 	struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(q, ctx->cpu);
 	struct elevator_queue *e = hctx->queue->elevator;
 
-	if (e) {
-		struct request *rq, *next;
-
-		/*
-		 * We bypass requests that already have a driver tag assigned,
-		 * which should only be flushes. Flushes are only ever inserted
-		 * as single requests, so we shouldn't ever hit the
-		 * WARN_ON_ONCE() below (but let's handle it just in case).
-		 */
-		list_for_each_entry_safe(rq, next, list, queuelist) {
-			if (WARN_ON_ONCE(rq->tag != -1)) {
-				list_del_init(&rq->queuelist);
-				blk_mq_sched_bypass_insert(hctx, rq);
-			}
-		}
-	}
-
 	if (e && e->type->ops.mq.insert_requests)
 		e->type->ops.mq.insert_requests(hctx, list, false);
 	else
diff --git a/block/blk-mq-sched.h b/block/blk-mq-sched.h
index 9267d0b7c197..ba1d1418a96d 100644
--- a/block/blk-mq-sched.h
+++ b/block/blk-mq-sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLK_MQ_SCHED_H
 #define BLK_MQ_SCHED_H
 
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
index 6714507aa6c7..c81b40ecd3f1 100644
--- a/block/blk-mq-tag.c
+++ b/block/blk-mq-tag.c
@@ -298,12 +298,12 @@ void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset,
 }
 EXPORT_SYMBOL(blk_mq_tagset_busy_iter);
 
-int blk_mq_reinit_tagset(struct blk_mq_tag_set *set,
-			 int (reinit_request)(void *, struct request *))
+int blk_mq_tagset_iter(struct blk_mq_tag_set *set, void *data,
+			 int (fn)(void *, struct request *))
 {
 	int i, j, ret = 0;
 
-	if (WARN_ON_ONCE(!reinit_request))
+	if (WARN_ON_ONCE(!fn))
 		goto out;
 
 	for (i = 0; i < set->nr_hw_queues; i++) {
@@ -316,8 +316,7 @@ int blk_mq_reinit_tagset(struct blk_mq_tag_set *set,
 			if (!tags->static_rqs[j])
 				continue;
 
-			ret = reinit_request(set->driver_data,
-					     tags->static_rqs[j]);
+			ret = fn(data, tags->static_rqs[j]);
 			if (ret)
 				goto out;
 		}
@@ -326,7 +325,7 @@ int blk_mq_reinit_tagset(struct blk_mq_tag_set *set,
 out:
 	return ret;
 }
-EXPORT_SYMBOL_GPL(blk_mq_reinit_tagset);
+EXPORT_SYMBOL_GPL(blk_mq_tagset_iter);
 
 void blk_mq_queue_tag_busy_iter(struct request_queue *q, busy_iter_fn *fn,
 		void *priv)
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
index 5cb51e53cc03..61deab0b5a5a 100644
--- a/block/blk-mq-tag.h
+++ b/block/blk-mq-tag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef INT_BLK_MQ_TAG_H
 #define INT_BLK_MQ_TAG_H
 
@@ -44,13 +45,8 @@ static inline struct sbq_wait_state *bt_wait_ptr(struct sbitmap_queue *bt,
 }
 
 enum {
-	BLK_MQ_TAG_CACHE_MIN	= 1,
-	BLK_MQ_TAG_CACHE_MAX	= 64,
-};
-
-enum {
 	BLK_MQ_TAG_FAIL		= -1U,
-	BLK_MQ_TAG_MIN		= BLK_MQ_TAG_CACHE_MIN,
+	BLK_MQ_TAG_MIN		= 1,
 	BLK_MQ_TAG_MAX		= BLK_MQ_TAG_FAIL - 1,
 };
 
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 98a18609755e..b600463791ec 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -37,6 +37,7 @@
 #include "blk-wbt.h"
 #include "blk-mq-sched.h"
 
+static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie);
 static void blk_mq_poll_stats_start(struct request_queue *q);
 static void blk_mq_poll_stats_fn(struct blk_stat_callback *cb);
 
@@ -60,10 +61,10 @@ static int blk_mq_poll_stats_bkt(const struct request *rq)
 /*
  * Check if any of the ctx's have pending work in this hardware queue
  */
-bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx)
+static bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx)
 {
-	return sbitmap_any_bit_set(&hctx->ctx_map) ||
-			!list_empty_careful(&hctx->dispatch) ||
+	return !list_empty_careful(&hctx->dispatch) ||
+		sbitmap_any_bit_set(&hctx->ctx_map) ||
 			blk_mq_sched_has_work(hctx);
 }
 
@@ -125,7 +126,8 @@ void blk_freeze_queue_start(struct request_queue *q)
 	freeze_depth = atomic_inc_return(&q->mq_freeze_depth);
 	if (freeze_depth == 1) {
 		percpu_ref_kill(&q->q_usage_counter);
-		blk_mq_run_hw_queues(q, false);
+		if (q->mq_ops)
+			blk_mq_run_hw_queues(q, false);
 	}
 }
 EXPORT_SYMBOL_GPL(blk_freeze_queue_start);
@@ -255,13 +257,6 @@ void blk_mq_wake_waiters(struct request_queue *q)
 	queue_for_each_hw_ctx(q, hctx, i)
 		if (blk_mq_hw_queue_mapped(hctx))
 			blk_mq_tag_wakeup_all(hctx->tags, true);
-
-	/*
-	 * If we are called because the queue has now been marked as
-	 * dying, we need to ensure that processes currently waiting on
-	 * the queue are notified as well.
-	 */
-	wake_up_all(&q->mq_freeze_wq);
 }
 
 bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
@@ -296,6 +291,8 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data,
 	rq->q = data->q;
 	rq->mq_ctx = data->ctx;
 	rq->cmd_flags = op;
+	if (data->flags & BLK_MQ_REQ_PREEMPT)
+		rq->rq_flags |= RQF_PREEMPT;
 	if (blk_queue_io_stat(data->q))
 		rq->rq_flags |= RQF_IO_STAT;
 	/* do not touch atomic flags, it needs atomic ops against the timer */
@@ -336,12 +333,14 @@ static struct request *blk_mq_get_request(struct request_queue *q,
 	struct elevator_queue *e = q->elevator;
 	struct request *rq;
 	unsigned int tag;
-	struct blk_mq_ctx *local_ctx = NULL;
+	bool put_ctx_on_error = false;
 
 	blk_queue_enter_live(q);
 	data->q = q;
-	if (likely(!data->ctx))
-		data->ctx = local_ctx = blk_mq_get_ctx(q);
+	if (likely(!data->ctx)) {
+		data->ctx = blk_mq_get_ctx(q);
+		put_ctx_on_error = true;
+	}
 	if (likely(!data->hctx))
 		data->hctx = blk_mq_map_queue(q, data->ctx->cpu);
 	if (op & REQ_NOWAIT)
@@ -360,8 +359,8 @@ static struct request *blk_mq_get_request(struct request_queue *q,
 
 	tag = blk_mq_get_tag(data);
 	if (tag == BLK_MQ_TAG_FAIL) {
-		if (local_ctx) {
-			blk_mq_put_ctx(local_ctx);
+		if (put_ctx_on_error) {
+			blk_mq_put_ctx(data->ctx);
 			data->ctx = NULL;
 		}
 		blk_queue_exit(q);
@@ -384,13 +383,13 @@ static struct request *blk_mq_get_request(struct request_queue *q,
 }
 
 struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
-		unsigned int flags)
+		blk_mq_req_flags_t flags)
 {
 	struct blk_mq_alloc_data alloc_data = { .flags = flags };
 	struct request *rq;
 	int ret;
 
-	ret = blk_queue_enter(q, flags & BLK_MQ_REQ_NOWAIT);
+	ret = blk_queue_enter(q, flags);
 	if (ret)
 		return ERR_PTR(ret);
 
@@ -410,7 +409,7 @@ struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
 EXPORT_SYMBOL(blk_mq_alloc_request);
 
 struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
-		unsigned int op, unsigned int flags, unsigned int hctx_idx)
+	unsigned int op, blk_mq_req_flags_t flags, unsigned int hctx_idx)
 {
 	struct blk_mq_alloc_data alloc_data = { .flags = flags };
 	struct request *rq;
@@ -429,7 +428,7 @@ struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
 	if (hctx_idx >= q->nr_hw_queues)
 		return ERR_PTR(-EIO);
 
-	ret = blk_queue_enter(q, true);
+	ret = blk_queue_enter(q, flags);
 	if (ret)
 		return ERR_PTR(ret);
 
@@ -476,8 +475,14 @@ void blk_mq_free_request(struct request *rq)
 	if (rq->rq_flags & RQF_MQ_INFLIGHT)
 		atomic_dec(&hctx->nr_active);
 
+	if (unlikely(laptop_mode && !blk_rq_is_passthrough(rq)))
+		laptop_io_completion(q->backing_dev_info);
+
 	wbt_done(q->rq_wb, &rq->issue_stat);
 
+	if (blk_rq_rl(rq))
+		blk_put_rl(blk_rq_rl(rq));
+
 	clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
 	clear_bit(REQ_ATOM_POLL_SLEPT, &rq->atomic_flags);
 	if (rq->tag != -1)
@@ -593,22 +598,32 @@ void blk_mq_start_request(struct request *rq)
 
 	blk_add_timer(rq);
 
-	/*
-	 * Ensure that ->deadline is visible before set the started
-	 * flag and clear the completed flag.
-	 */
-	smp_mb__before_atomic();
+	WARN_ON_ONCE(test_bit(REQ_ATOM_STARTED, &rq->atomic_flags));
 
 	/*
 	 * Mark us as started and clear complete. Complete might have been
 	 * set if requeue raced with timeout, which then marked it as
 	 * complete. So be sure to clear complete again when we start
 	 * the request, otherwise we'll ignore the completion event.
+	 *
+	 * Ensure that ->deadline is visible before we set STARTED, such that
+	 * blk_mq_check_expired() is guaranteed to observe our ->deadline when
+	 * it observes STARTED.
 	 */
-	if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags))
-		set_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
-	if (test_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags))
+	smp_wmb();
+	set_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
+	if (test_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags)) {
+		/*
+		 * Coherence order guarantees these consecutive stores to a
+		 * single variable propagate in the specified order. Thus the
+		 * clear_bit() is ordered _after_ the set bit. See
+		 * blk_mq_check_expired().
+		 *
+		 * (the bits must be part of the same byte for this to be
+		 * true).
+		 */
 		clear_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags);
+	}
 
 	if (q->dma_drain_size && blk_rq_bytes(rq)) {
 		/*
@@ -634,6 +649,8 @@ static void __blk_mq_requeue_request(struct request *rq)
 {
 	struct request_queue *q = rq->q;
 
+	blk_mq_put_driver_tag(rq);
+
 	trace_block_rq_requeue(q, rq);
 	wbt_requeue(q->rq_wb, &rq->issue_stat);
 	blk_mq_sched_requeue_request(rq);
@@ -690,7 +707,7 @@ void blk_mq_add_to_requeue_list(struct request *rq, bool at_head,
 
 	/*
 	 * We abuse this flag that is otherwise used by the I/O scheduler to
-	 * request head insertation from the workqueue.
+	 * request head insertion from the workqueue.
 	 */
 	BUG_ON(rq->rq_flags & RQF_SOFTBARRIER);
 
@@ -778,11 +795,20 @@ static void blk_mq_check_expired(struct blk_mq_hw_ctx *hctx,
 		struct request *rq, void *priv, bool reserved)
 {
 	struct blk_mq_timeout_data *data = priv;
+	unsigned long deadline;
 
 	if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags))
 		return;
 
 	/*
+	 * Ensures that if we see STARTED we must also see our
+	 * up-to-date deadline, see blk_mq_start_request().
+	 */
+	smp_rmb();
+
+	deadline = READ_ONCE(rq->deadline);
+
+	/*
 	 * The rq being checked may have been freed and reallocated
 	 * out already here, we avoid this race by checking rq->deadline
 	 * and REQ_ATOM_COMPLETE flag together:
@@ -795,11 +821,20 @@ static void blk_mq_check_expired(struct blk_mq_hw_ctx *hctx,
 	 *   and clearing the flag in blk_mq_start_request(), so
 	 *   this rq won't be timed out too.
 	 */
-	if (time_after_eq(jiffies, rq->deadline)) {
-		if (!blk_mark_rq_complete(rq))
+	if (time_after_eq(jiffies, deadline)) {
+		if (!blk_mark_rq_complete(rq)) {
+			/*
+			 * Again coherence order ensures that consecutive reads
+			 * from the same variable must be in that order. This
+			 * ensures that if we see COMPLETE clear, we must then
+			 * see STARTED set and we'll ignore this timeout.
+			 *
+			 * (There's also the MB implied by the test_and_clear())
+			 */
 			blk_mq_rq_timed_out(rq, reserved);
-	} else if (!data->next_set || time_after(data->next, rq->deadline)) {
-		data->next = rq->deadline;
+		}
+	} else if (!data->next_set || time_after(data->next, deadline)) {
+		data->next = deadline;
 		data->next_set = 1;
 	}
 }
@@ -880,6 +915,45 @@ void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list)
 }
 EXPORT_SYMBOL_GPL(blk_mq_flush_busy_ctxs);
 
+struct dispatch_rq_data {
+	struct blk_mq_hw_ctx *hctx;
+	struct request *rq;
+};
+
+static bool dispatch_rq_from_ctx(struct sbitmap *sb, unsigned int bitnr,
+		void *data)
+{
+	struct dispatch_rq_data *dispatch_data = data;
+	struct blk_mq_hw_ctx *hctx = dispatch_data->hctx;
+	struct blk_mq_ctx *ctx = hctx->ctxs[bitnr];
+
+	spin_lock(&ctx->lock);
+	if (unlikely(!list_empty(&ctx->rq_list))) {
+		dispatch_data->rq = list_entry_rq(ctx->rq_list.next);
+		list_del_init(&dispatch_data->rq->queuelist);
+		if (list_empty(&ctx->rq_list))
+			sbitmap_clear_bit(sb, bitnr);
+	}
+	spin_unlock(&ctx->lock);
+
+	return !dispatch_data->rq;
+}
+
+struct request *blk_mq_dequeue_from_ctx(struct blk_mq_hw_ctx *hctx,
+					struct blk_mq_ctx *start)
+{
+	unsigned off = start ? start->index_hw : 0;
+	struct dispatch_rq_data data = {
+		.hctx = hctx,
+		.rq   = NULL,
+	};
+
+	__sbitmap_for_each_set(&hctx->ctx_map, off,
+			       dispatch_rq_from_ctx, &data);
+
+	return data.rq;
+}
+
 static inline unsigned int queued_to_index(unsigned int queued)
 {
 	if (!queued)
@@ -920,109 +994,95 @@ done:
 	return rq->tag != -1;
 }
 
-static void __blk_mq_put_driver_tag(struct blk_mq_hw_ctx *hctx,
-				    struct request *rq)
-{
-	blk_mq_put_tag(hctx, hctx->tags, rq->mq_ctx, rq->tag);
-	rq->tag = -1;
-
-	if (rq->rq_flags & RQF_MQ_INFLIGHT) {
-		rq->rq_flags &= ~RQF_MQ_INFLIGHT;
-		atomic_dec(&hctx->nr_active);
-	}
-}
-
-static void blk_mq_put_driver_tag_hctx(struct blk_mq_hw_ctx *hctx,
-				       struct request *rq)
-{
-	if (rq->tag == -1 || rq->internal_tag == -1)
-		return;
-
-	__blk_mq_put_driver_tag(hctx, rq);
-}
-
-static void blk_mq_put_driver_tag(struct request *rq)
+static int blk_mq_dispatch_wake(wait_queue_entry_t *wait, unsigned mode,
+				int flags, void *key)
 {
 	struct blk_mq_hw_ctx *hctx;
 
-	if (rq->tag == -1 || rq->internal_tag == -1)
-		return;
+	hctx = container_of(wait, struct blk_mq_hw_ctx, dispatch_wait);
 
-	hctx = blk_mq_map_queue(rq->q, rq->mq_ctx->cpu);
-	__blk_mq_put_driver_tag(hctx, rq);
+	list_del_init(&wait->entry);
+	blk_mq_run_hw_queue(hctx, true);
+	return 1;
 }
 
 /*
- * If we fail getting a driver tag because all the driver tags are already
- * assigned and on the dispatch list, BUT the first entry does not have a
- * tag, then we could deadlock. For that case, move entries with assigned
- * driver tags to the front, leaving the set of tagged requests in the
- * same order, and the untagged set in the same order.
+ * Mark us waiting for a tag. For shared tags, this involves hooking us into
+ * the tag wakeups. For non-shared tags, we can simply mark us nedeing a
+ * restart. For both caes, take care to check the condition again after
+ * marking us as waiting.
  */
-static bool reorder_tags_to_front(struct list_head *list)
-{
-	struct request *rq, *tmp, *first = NULL;
-
-	list_for_each_entry_safe_reverse(rq, tmp, list, queuelist) {
-		if (rq == first)
-			break;
-		if (rq->tag != -1) {
-			list_move(&rq->queuelist, list);
-			if (!first)
-				first = rq;
-		}
-	}
-
-	return first != NULL;
-}
-
-static int blk_mq_dispatch_wake(wait_queue_entry_t *wait, unsigned mode, int flags,
-				void *key)
+static bool blk_mq_mark_tag_wait(struct blk_mq_hw_ctx **hctx,
+				 struct request *rq)
 {
-	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_hw_ctx *this_hctx = *hctx;
+	bool shared_tags = (this_hctx->flags & BLK_MQ_F_TAG_SHARED) != 0;
+	struct sbq_wait_state *ws;
+	wait_queue_entry_t *wait;
+	bool ret;
 
-	hctx = container_of(wait, struct blk_mq_hw_ctx, dispatch_wait);
+	if (!shared_tags) {
+		if (!test_bit(BLK_MQ_S_SCHED_RESTART, &this_hctx->state))
+			set_bit(BLK_MQ_S_SCHED_RESTART, &this_hctx->state);
+	} else {
+		wait = &this_hctx->dispatch_wait;
+		if (!list_empty_careful(&wait->entry))
+			return false;
 
-	list_del(&wait->entry);
-	clear_bit_unlock(BLK_MQ_S_TAG_WAITING, &hctx->state);
-	blk_mq_run_hw_queue(hctx, true);
-	return 1;
-}
+		spin_lock(&this_hctx->lock);
+		if (!list_empty(&wait->entry)) {
+			spin_unlock(&this_hctx->lock);
+			return false;
+		}
 
-static bool blk_mq_dispatch_wait_add(struct blk_mq_hw_ctx *hctx)
-{
-	struct sbq_wait_state *ws;
+		ws = bt_wait_ptr(&this_hctx->tags->bitmap_tags, this_hctx);
+		add_wait_queue(&ws->wait, wait);
+	}
 
 	/*
-	 * The TAG_WAITING bit serves as a lock protecting hctx->dispatch_wait.
-	 * The thread which wins the race to grab this bit adds the hardware
-	 * queue to the wait queue.
+	 * It's possible that a tag was freed in the window between the
+	 * allocation failure and adding the hardware queue to the wait
+	 * queue.
 	 */
-	if (test_bit(BLK_MQ_S_TAG_WAITING, &hctx->state) ||
-	    test_and_set_bit_lock(BLK_MQ_S_TAG_WAITING, &hctx->state))
-		return false;
+	ret = blk_mq_get_driver_tag(rq, hctx, false);
 
-	init_waitqueue_func_entry(&hctx->dispatch_wait, blk_mq_dispatch_wake);
-	ws = bt_wait_ptr(&hctx->tags->bitmap_tags, hctx);
+	if (!shared_tags) {
+		/*
+		 * Don't clear RESTART here, someone else could have set it.
+		 * At most this will cost an extra queue run.
+		 */
+		return ret;
+	} else {
+		if (!ret) {
+			spin_unlock(&this_hctx->lock);
+			return false;
+		}
 
-	/*
-	 * As soon as this returns, it's no longer safe to fiddle with
-	 * hctx->dispatch_wait, since a completion can wake up the wait queue
-	 * and unlock the bit.
-	 */
-	add_wait_queue(&ws->wait, &hctx->dispatch_wait);
-	return true;
+		/*
+		 * We got a tag, remove ourselves from the wait queue to ensure
+		 * someone else gets the wakeup.
+		 */
+		spin_lock_irq(&ws->wait.lock);
+		list_del_init(&wait->entry);
+		spin_unlock_irq(&ws->wait.lock);
+		spin_unlock(&this_hctx->lock);
+		return true;
+	}
 }
 
-bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
+bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list,
+			     bool got_budget)
 {
 	struct blk_mq_hw_ctx *hctx;
-	struct request *rq;
+	struct request *rq, *nxt;
+	bool no_tag = false;
 	int errors, queued;
 
 	if (list_empty(list))
 		return false;
 
+	WARN_ON(!list_is_singular(list) && got_budget);
+
 	/*
 	 * Now process all the entries, sending them to the driver.
 	 */
@@ -1033,23 +1093,29 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
 
 		rq = list_first_entry(list, struct request, queuelist);
 		if (!blk_mq_get_driver_tag(rq, &hctx, false)) {
-			if (!queued && reorder_tags_to_front(list))
-				continue;
-
 			/*
 			 * The initial allocation attempt failed, so we need to
-			 * rerun the hardware queue when a tag is freed.
+			 * rerun the hardware queue when a tag is freed. The
+			 * waitqueue takes care of that. If the queue is run
+			 * before we add this entry back on the dispatch list,
+			 * we'll re-run it below.
 			 */
-			if (!blk_mq_dispatch_wait_add(hctx))
+			if (!blk_mq_mark_tag_wait(&hctx, rq)) {
+				if (got_budget)
+					blk_mq_put_dispatch_budget(hctx);
+				/*
+				 * For non-shared tags, the RESTART check
+				 * will suffice.
+				 */
+				if (hctx->flags & BLK_MQ_F_TAG_SHARED)
+					no_tag = true;
 				break;
+			}
+		}
 
-			/*
-			 * It's possible that a tag was freed in the window
-			 * between the allocation failure and adding the
-			 * hardware queue to the wait queue.
-			 */
-			if (!blk_mq_get_driver_tag(rq, &hctx, false))
-				break;
+		if (!got_budget && !blk_mq_get_dispatch_budget(hctx)) {
+			blk_mq_put_driver_tag(rq);
+			break;
 		}
 
 		list_del_init(&rq->queuelist);
@@ -1063,15 +1129,21 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
 		if (list_empty(list))
 			bd.last = true;
 		else {
-			struct request *nxt;
-
 			nxt = list_first_entry(list, struct request, queuelist);
 			bd.last = !blk_mq_get_driver_tag(nxt, NULL, false);
 		}
 
 		ret = q->mq_ops->queue_rq(hctx, &bd);
 		if (ret == BLK_STS_RESOURCE) {
-			blk_mq_put_driver_tag_hctx(hctx, rq);
+			/*
+			 * If an I/O scheduler has been configured and we got a
+			 * driver tag for the next request already, free it
+			 * again.
+			 */
+			if (!list_empty(list)) {
+				nxt = list_first_entry(list, struct request, queuelist);
+				blk_mq_put_driver_tag(nxt);
+			}
 			list_add(&rq->queuelist, list);
 			__blk_mq_requeue_request(rq);
 			break;
@@ -1093,13 +1165,6 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
 	 * that is where we will continue on next queue run.
 	 */
 	if (!list_empty(list)) {
-		/*
-		 * If an I/O scheduler has been configured and we got a driver
-		 * tag for the next request already, free it again.
-		 */
-		rq = list_first_entry(list, struct request, queuelist);
-		blk_mq_put_driver_tag(rq);
-
 		spin_lock(&hctx->lock);
 		list_splice_init(list, &hctx->dispatch);
 		spin_unlock(&hctx->lock);
@@ -1109,10 +1174,10 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
 		 * it is no longer set that means that it was cleared by another
 		 * thread and hence that a queue rerun is needed.
 		 *
-		 * If TAG_WAITING is set that means that an I/O scheduler has
-		 * been configured and another thread is waiting for a driver
-		 * tag. To guarantee fairness, do not rerun this hardware queue
-		 * but let the other thread grab the driver tag.
+		 * If 'no_tag' is set, that means that we failed getting
+		 * a driver tag with an I/O scheduler attached. If our dispatch
+		 * waitqueue is no longer active, ensure that we run the queue
+		 * AFTER adding our entries back to the list.
 		 *
 		 * If no I/O scheduler has been configured it is possible that
 		 * the hardware queue got stopped and restarted before requests
@@ -1124,8 +1189,8 @@ bool blk_mq_dispatch_rq_list(struct request_queue *q, struct list_head *list)
 		 *   returning BLK_STS_RESOURCE. Two exceptions are scsi-mq
 		 *   and dm-rq.
 		 */
-		if (!blk_mq_sched_needs_restart(hctx) &&
-		    !test_bit(BLK_MQ_S_TAG_WAITING, &hctx->state))
+		if (!blk_mq_sched_needs_restart(hctx) ||
+		    (no_tag && list_empty_careful(&hctx->dispatch_wait.entry)))
 			blk_mq_run_hw_queue(hctx, true);
 	}
 
@@ -1218,9 +1283,14 @@ void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs)
 }
 EXPORT_SYMBOL(blk_mq_delay_run_hw_queue);
 
-void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
+bool blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
 {
-	__blk_mq_delay_run_hw_queue(hctx, async, 0);
+	if (blk_mq_hctx_has_pending(hctx)) {
+		__blk_mq_delay_run_hw_queue(hctx, async, 0);
+		return true;
+	}
+
+	return false;
 }
 EXPORT_SYMBOL(blk_mq_run_hw_queue);
 
@@ -1230,8 +1300,7 @@ void blk_mq_run_hw_queues(struct request_queue *q, bool async)
 	int i;
 
 	queue_for_each_hw_ctx(q, hctx, i) {
-		if (!blk_mq_hctx_has_pending(hctx) ||
-		    blk_mq_hctx_stopped(hctx))
+		if (blk_mq_hctx_stopped(hctx))
 			continue;
 
 		blk_mq_run_hw_queue(hctx, async);
@@ -1405,7 +1474,7 @@ void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
  * Should only be used carefully, when the caller knows we want to
  * bypass a potential IO scheduler on the target device.
  */
-void blk_mq_request_bypass_insert(struct request *rq)
+void blk_mq_request_bypass_insert(struct request *rq, bool run_queue)
 {
 	struct blk_mq_ctx *ctx = rq->mq_ctx;
 	struct blk_mq_hw_ctx *hctx = blk_mq_map_queue(rq->q, ctx->cpu);
@@ -1414,7 +1483,8 @@ void blk_mq_request_bypass_insert(struct request *rq)
 	list_add_tail(&rq->queuelist, &hctx->dispatch);
 	spin_unlock(&hctx->lock);
 
-	blk_mq_run_hw_queue(hctx, false);
+	if (run_queue)
+		blk_mq_run_hw_queue(hctx, false);
 }
 
 void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
@@ -1501,13 +1571,9 @@ static void blk_mq_bio_to_request(struct request *rq, struct bio *bio)
 {
 	blk_init_request_from_bio(rq, bio);
 
-	blk_account_io_start(rq, true);
-}
+	blk_rq_set_rl(rq, blk_get_rl(rq->q, bio));
 
-static inline bool hctx_allow_merges(struct blk_mq_hw_ctx *hctx)
-{
-	return (hctx->flags & BLK_MQ_F_SHOULD_MERGE) &&
-		!blk_queue_nomerges(hctx->queue);
+	blk_account_io_start(rq, true);
 }
 
 static inline void blk_mq_queue_io(struct blk_mq_hw_ctx *hctx,
@@ -1552,6 +1618,11 @@ static void __blk_mq_try_issue_directly(struct blk_mq_hw_ctx *hctx,
 	if (!blk_mq_get_driver_tag(rq, NULL, false))
 		goto insert;
 
+	if (!blk_mq_get_dispatch_budget(hctx)) {
+		blk_mq_put_driver_tag(rq);
+		goto insert;
+	}
+
 	new_cookie = request_to_qc_t(hctx, rq);
 
 	/*
@@ -1641,13 +1712,10 @@ static blk_qc_t blk_mq_make_request(struct request_queue *q, struct bio *bio)
 	if (unlikely(is_flush_fua)) {
 		blk_mq_put_ctx(data.ctx);
 		blk_mq_bio_to_request(rq, bio);
-		if (q->elevator) {
-			blk_mq_sched_insert_request(rq, false, true, true,
-					true);
-		} else {
-			blk_insert_flush(rq);
-			blk_mq_run_hw_queue(data.hctx, true);
-		}
+
+		/* bypass scheduler for flush rq */
+		blk_insert_flush(rq);
+		blk_mq_run_hw_queue(data.hctx, true);
 	} else if (plug && q->nr_hw_queues == 1) {
 		struct request *last = NULL;
 
@@ -1990,6 +2058,9 @@ static int blk_mq_init_hctx(struct request_queue *q,
 
 	hctx->nr_ctx = 0;
 
+	init_waitqueue_func_entry(&hctx->dispatch_wait, blk_mq_dispatch_wake);
+	INIT_LIST_HEAD(&hctx->dispatch_wait.entry);
+
 	if (set->ops->init_hctx &&
 	    set->ops->init_hctx(hctx, set->driver_data, hctx_idx))
 		goto free_bitmap;
@@ -2229,8 +2300,11 @@ static void blk_mq_add_queue_tag_set(struct blk_mq_tag_set *set,
 
 	mutex_lock(&set->tag_list_lock);
 
-	/* Check to see if we're transitioning to shared (from 1 to 2 queues). */
-	if (!list_empty(&set->tag_list) && !(set->flags & BLK_MQ_F_TAG_SHARED)) {
+	/*
+	 * Check to see if we're transitioning to shared (from 1 to 2 queues).
+	 */
+	if (!list_empty(&set->tag_list) &&
+	    !(set->flags & BLK_MQ_F_TAG_SHARED)) {
 		set->flags |= BLK_MQ_F_TAG_SHARED;
 		/* update existing queue */
 		blk_mq_update_tag_set_depth(set, true);
@@ -2404,6 +2478,8 @@ struct request_queue *blk_mq_init_allocated_queue(struct blk_mq_tag_set *set,
 	spin_lock_init(&q->requeue_lock);
 
 	blk_queue_make_request(q, blk_mq_make_request);
+	if (q->mq_ops->poll)
+		q->poll_fn = blk_mq_poll;
 
 	/*
 	 * Do this after blk_queue_make_request() overrides it...
@@ -2460,10 +2536,9 @@ static void blk_mq_queue_reinit(struct request_queue *q)
 
 	/*
 	 * redo blk_mq_init_cpu_queues and blk_mq_init_hw_queues. FIXME: maybe
-	 * we should change hctx numa_node according to new topology (this
-	 * involves free and re-allocate memory, worthy doing?)
+	 * we should change hctx numa_node according to the new topology (this
+	 * involves freeing and re-allocating memory, worth doing?)
 	 */
-
 	blk_mq_map_swqueue(q);
 
 	blk_mq_sysfs_register(q);
@@ -2552,6 +2627,9 @@ int blk_mq_alloc_tag_set(struct blk_mq_tag_set *set)
 	if (!set->ops->queue_rq)
 		return -EINVAL;
 
+	if (!set->ops->get_budget ^ !set->ops->put_budget)
+		return -EINVAL;
+
 	if (set->queue_depth > BLK_MQ_MAX_DEPTH) {
 		pr_info("blk-mq: reduced tag depth to %u\n",
 			BLK_MQ_MAX_DEPTH);
@@ -2642,8 +2720,7 @@ int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr)
 		 * queue depth. This is similar to what the old code would do.
 		 */
 		if (!hctx->sched_tags) {
-			ret = blk_mq_tag_update_depth(hctx, &hctx->tags,
-							min(nr, set->queue_depth),
+			ret = blk_mq_tag_update_depth(hctx, &hctx->tags, nr,
 							false);
 		} else {
 			ret = blk_mq_tag_update_depth(hctx, &hctx->sched_tags,
@@ -2863,20 +2940,14 @@ static bool __blk_mq_poll(struct blk_mq_hw_ctx *hctx, struct request *rq)
 	return false;
 }
 
-bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie)
+static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie)
 {
 	struct blk_mq_hw_ctx *hctx;
-	struct blk_plug *plug;
 	struct request *rq;
 
-	if (!q->mq_ops || !q->mq_ops->poll || !blk_qc_t_valid(cookie) ||
-	    !test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
+	if (!test_bit(QUEUE_FLAG_POLL, &q->queue_flags))
 		return false;
 
-	plug = current->plug;
-	if (plug)
-		blk_flush_plug_list(plug, false);
-
 	hctx = q->queue_hw_ctx[blk_qc_t_to_queue_num(cookie)];
 	if (!blk_qc_t_is_internal(cookie))
 		rq = blk_mq_tag_to_rq(hctx->tags, blk_qc_t_to_tag(cookie));
@@ -2894,10 +2965,15 @@ bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie)
 
 	return __blk_mq_poll(hctx, rq);
 }
-EXPORT_SYMBOL_GPL(blk_mq_poll);
 
 static int __init blk_mq_init(void)
 {
+	/*
+	 * See comment in block/blk.h rq_atomic_flags enum
+	 */
+	BUILD_BUG_ON((REQ_ATOM_STARTED / BITS_PER_BYTE) !=
+			(REQ_ATOM_COMPLETE / BITS_PER_BYTE));
+
 	cpuhp_setup_state_multi(CPUHP_BLK_MQ_DEAD, "block/mq:dead", NULL,
 				blk_mq_hctx_notify_dead);
 	return 0;
diff --git a/block/blk-mq.h b/block/blk-mq.h
index ef15b3414da5..6c7c3ff5bf62 100644
--- a/block/blk-mq.h
+++ b/block/blk-mq.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef INT_BLK_MQ_H
 #define INT_BLK_MQ_H
 
 #include "blk-stat.h"
+#include "blk-mq-tag.h"
 
 struct blk_mq_tag_set;
 
@@ -25,16 +27,16 @@ struct blk_mq_ctx {
 	struct kobject		kobj;
 } ____cacheline_aligned_in_smp;
 
-void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
 void blk_mq_freeze_queue(struct request_queue *q);
 void blk_mq_free_queue(struct request_queue *q);
 int blk_mq_update_nr_requests(struct request_queue *q, unsigned int nr);
 void blk_mq_wake_waiters(struct request_queue *q);
-bool blk_mq_dispatch_rq_list(struct request_queue *, struct list_head *);
+bool blk_mq_dispatch_rq_list(struct request_queue *, struct list_head *, bool);
 void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list);
-bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx);
 bool blk_mq_get_driver_tag(struct request *rq, struct blk_mq_hw_ctx **hctx,
 				bool wait);
+struct request *blk_mq_dequeue_from_ctx(struct blk_mq_hw_ctx *hctx,
+					struct blk_mq_ctx *start);
 
 /*
  * Internal helpers for allocating/freeing the request map
@@ -54,7 +56,7 @@ int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
  */
 void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx, struct request *rq,
 				bool at_head);
-void blk_mq_request_bypass_insert(struct request *rq);
+void blk_mq_request_bypass_insert(struct request *rq, bool run_queue);
 void blk_mq_insert_requests(struct blk_mq_hw_ctx *hctx, struct blk_mq_ctx *ctx,
 				struct list_head *list);
 
@@ -108,7 +110,7 @@ static inline void blk_mq_put_ctx(struct blk_mq_ctx *ctx)
 struct blk_mq_alloc_data {
 	/* input parameter */
 	struct request_queue *q;
-	unsigned int flags;
+	blk_mq_req_flags_t flags;
 	unsigned int shallow_depth;
 
 	/* input & output parameter */
@@ -137,4 +139,53 @@ static inline bool blk_mq_hw_queue_mapped(struct blk_mq_hw_ctx *hctx)
 void blk_mq_in_flight(struct request_queue *q, struct hd_struct *part,
 			unsigned int inflight[2]);
 
+static inline void blk_mq_put_dispatch_budget(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+
+	if (q->mq_ops->put_budget)
+		q->mq_ops->put_budget(hctx);
+}
+
+static inline bool blk_mq_get_dispatch_budget(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+
+	if (q->mq_ops->get_budget)
+		return q->mq_ops->get_budget(hctx);
+	return true;
+}
+
+static inline void __blk_mq_put_driver_tag(struct blk_mq_hw_ctx *hctx,
+					   struct request *rq)
+{
+	blk_mq_put_tag(hctx, hctx->tags, rq->mq_ctx, rq->tag);
+	rq->tag = -1;
+
+	if (rq->rq_flags & RQF_MQ_INFLIGHT) {
+		rq->rq_flags &= ~RQF_MQ_INFLIGHT;
+		atomic_dec(&hctx->nr_active);
+	}
+}
+
+static inline void blk_mq_put_driver_tag_hctx(struct blk_mq_hw_ctx *hctx,
+				       struct request *rq)
+{
+	if (rq->tag == -1 || rq->internal_tag == -1)
+		return;
+
+	__blk_mq_put_driver_tag(hctx, rq);
+}
+
+static inline void blk_mq_put_driver_tag(struct request *rq)
+{
+	struct blk_mq_hw_ctx *hctx;
+
+	if (rq->tag == -1 || rq->internal_tag == -1)
+		return;
+
+	hctx = blk_mq_map_queue(rq->q, rq->mq_ctx->cpu);
+	__blk_mq_put_driver_tag(hctx, rq);
+}
+
 #endif
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 8559e9563c52..48ebe6be07b7 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -157,7 +157,7 @@ EXPORT_SYMBOL(blk_set_stacking_limits);
  * Caveat:
  *    The driver that does this *must* be able to deal appropriately
  *    with buffers in "highmemory". This can be accomplished by either calling
- *    __bio_kmap_atomic() to get a temporary kernel mapping, or by calling
+ *    kmap_atomic() to get a temporary kernel mapping, or by calling
  *    blk_queue_bounce() to create a buffer in normal memory.
  **/
 void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index 07125e7941f4..01e2b353a2b9 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to softirq rq completions
  */
diff --git a/block/blk-stat.c b/block/blk-stat.c
index c52356d90fe3..3a2f3c96f367 100644
--- a/block/blk-stat.c
+++ b/block/blk-stat.c
@@ -11,8 +11,6 @@
 #include "blk-mq.h"
 #include "blk.h"
 
-#define BLK_RQ_STAT_BATCH	64
-
 struct blk_queue_stats {
 	struct list_head callbacks;
 	spinlock_t lock;
@@ -23,45 +21,21 @@ static void blk_stat_init(struct blk_rq_stat *stat)
 {
 	stat->min = -1ULL;
 	stat->max = stat->nr_samples = stat->mean = 0;
-	stat->batch = stat->nr_batch = 0;
-}
-
-static void blk_stat_flush_batch(struct blk_rq_stat *stat)
-{
-	const s32 nr_batch = READ_ONCE(stat->nr_batch);
-	const s32 nr_samples = READ_ONCE(stat->nr_samples);
-
-	if (!nr_batch)
-		return;
-	if (!nr_samples)
-		stat->mean = div64_s64(stat->batch, nr_batch);
-	else {
-		stat->mean = div64_s64((stat->mean * nr_samples) +
-					stat->batch,
-					nr_batch + nr_samples);
-	}
-
-	stat->nr_samples += nr_batch;
-	stat->nr_batch = stat->batch = 0;
+	stat->batch = 0;
 }
 
+/* src is a per-cpu stat, mean isn't initialized */
 static void blk_stat_sum(struct blk_rq_stat *dst, struct blk_rq_stat *src)
 {
-	blk_stat_flush_batch(src);
-
 	if (!src->nr_samples)
 		return;
 
 	dst->min = min(dst->min, src->min);
 	dst->max = max(dst->max, src->max);
 
-	if (!dst->nr_samples)
-		dst->mean = src->mean;
-	else {
-		dst->mean = div64_s64((src->mean * src->nr_samples) +
-					(dst->mean * dst->nr_samples),
-					dst->nr_samples + src->nr_samples);
-	}
+	dst->mean = div_u64(src->batch + dst->mean * dst->nr_samples,
+				dst->nr_samples + src->nr_samples);
+
 	dst->nr_samples += src->nr_samples;
 }
 
@@ -69,13 +43,8 @@ static void __blk_stat_add(struct blk_rq_stat *stat, u64 value)
 {
 	stat->min = min(stat->min, value);
 	stat->max = max(stat->max, value);
-
-	if (stat->batch + value < stat->batch ||
-	    stat->nr_batch + 1 == BLK_RQ_STAT_BATCH)
-		blk_stat_flush_batch(stat);
-
 	stat->batch += value;
-	stat->nr_batch++;
+	stat->nr_samples++;
 }
 
 void blk_stat_add(struct request *rq)
@@ -84,7 +53,7 @@ void blk_stat_add(struct request *rq)
 	struct blk_stat_callback *cb;
 	struct blk_rq_stat *stat;
 	int bucket;
-	s64 now, value;
+	u64 now, value;
 
 	now = __blk_stat_time(ktime_to_ns(ktime_get()));
 	if (now < blk_stat_time(&rq->issue_stat))
diff --git a/block/blk-stat.h b/block/blk-stat.h
index 2fb20d1a341a..2dd36347252a 100644
--- a/block/blk-stat.h
+++ b/block/blk-stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLK_STAT_H
 #define BLK_STAT_H
 
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index b8362c0df51d..e54be402899d 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to sysfs handling
  */
diff --git a/block/blk-tag.c b/block/blk-tag.c
index e1a9c15eb1b8..09f19c6c52ce 100644
--- a/block/blk-tag.c
+++ b/block/blk-tag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to tagged command queuing
  */
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 0fea76aa0f3f..96ad32623427 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Interface for controlling IO bandwidth on a request queue
  *
@@ -1911,11 +1912,11 @@ static void throtl_upgrade_state(struct throtl_data *td)
 
 		tg->disptime = jiffies - 1;
 		throtl_select_dispatch(sq);
-		throtl_schedule_next_dispatch(sq, false);
+		throtl_schedule_next_dispatch(sq, true);
 	}
 	rcu_read_unlock();
 	throtl_select_dispatch(&td->service_queue);
-	throtl_schedule_next_dispatch(&td->service_queue, false);
+	throtl_schedule_next_dispatch(&td->service_queue, true);
 	queue_work(kthrotld_workqueue, &td->dispatch_work);
 }
 
@@ -2112,8 +2113,12 @@ static inline void throtl_update_latency_buckets(struct throtl_data *td)
 static void blk_throtl_assoc_bio(struct throtl_grp *tg, struct bio *bio)
 {
 #ifdef CONFIG_BLK_DEV_THROTTLING_LOW
-	if (bio->bi_css)
+	if (bio->bi_css) {
+		if (bio->bi_cg_private)
+			blkg_put(tg_to_blkg(bio->bi_cg_private));
 		bio->bi_cg_private = tg;
+		blkg_get(tg_to_blkg(tg));
+	}
 	blk_stat_set_issue(&bio->bi_issue_stat, bio_sectors(bio));
 #endif
 }
@@ -2283,8 +2288,10 @@ void blk_throtl_bio_endio(struct bio *bio)
 
 	start_time = blk_stat_time(&bio->bi_issue_stat) >> 10;
 	finish_time = __blk_stat_time(finish_time_ns) >> 10;
-	if (!start_time || finish_time <= start_time)
+	if (!start_time || finish_time <= start_time) {
+		blkg_put(tg_to_blkg(tg));
 		return;
+	}
 
 	lat = finish_time - start_time;
 	/* this is only for bio based driver */
@@ -2314,6 +2321,8 @@ void blk_throtl_bio_endio(struct bio *bio)
 		tg->bio_cnt /= 2;
 		tg->bad_bio_cnt /= 2;
 	}
+
+	blkg_put(tg_to_blkg(tg));
 }
 #endif
 
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index 17ec83bb0900..764ecf9aeb30 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -134,8 +134,6 @@ void blk_timeout_work(struct work_struct *work)
 	struct request *rq, *tmp;
 	int next_set = 0;
 
-	if (blk_queue_enter(q, true))
-		return;
 	spin_lock_irqsave(q->queue_lock, flags);
 
 	list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list)
@@ -145,7 +143,6 @@ void blk_timeout_work(struct work_struct *work)
 		mod_timer(&q->timeout, round_jiffies_up(next));
 
 	spin_unlock_irqrestore(q->queue_lock, flags);
-	blk_queue_exit(q);
 }
 
 /**
@@ -211,7 +208,7 @@ void blk_add_timer(struct request *req)
 	if (!req->timeout)
 		req->timeout = q->rq_timeout;
 
-	req->deadline = jiffies + req->timeout;
+	WRITE_ONCE(req->deadline, jiffies + req->timeout);
 
 	/*
 	 * Only the non-mq case needs to add the request to a protected list.
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 6a9a0f03a67b..b252da0e4c11 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -261,7 +261,7 @@ static inline bool stat_sample_valid(struct blk_rq_stat *stat)
 
 static u64 rwb_sync_issue_lat(struct rq_wb *rwb)
 {
-	u64 now, issue = ACCESS_ONCE(rwb->sync_issue);
+	u64 now, issue = READ_ONCE(rwb->sync_issue);
 
 	if (!issue || !rwb->sync_cookie)
 		return 0;
@@ -654,7 +654,7 @@ void wbt_set_write_cache(struct rq_wb *rwb, bool write_cache_on)
 }
 
 /*
- * Disable wbt, if enabled by default. Only called from CFQ.
+ * Disable wbt, if enabled by default.
  */
 void wbt_disable_default(struct request_queue *q)
 {
diff --git a/block/blk-wbt.h b/block/blk-wbt.h
index df6de50c5d59..a232c98fbf4d 100644
--- a/block/blk-wbt.h
+++ b/block/blk-wbt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef WB_THROTTLE_H
 #define WB_THROTTLE_H
 
diff --git a/block/blk.h b/block/blk.h
index fcb9775b997d..3f1446937aec 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLK_INTERNAL_H
 #define BLK_INTERNAL_H
 
@@ -122,8 +123,15 @@ void blk_account_io_done(struct request *req);
  * Internal atomic flags for request handling
  */
 enum rq_atomic_flags {
+	/*
+	 * Keep these two bits first - not because we depend on the
+	 * value of them, but we do depend on them being in the same
+	 * byte of storage to ensure ordering on writes. Keeping them
+	 * first will achieve that nicely.
+	 */
 	REQ_ATOM_COMPLETE = 0,
 	REQ_ATOM_STARTED,
+
 	REQ_ATOM_POLL_SLEPT,
 };
 
@@ -148,45 +156,6 @@ static inline void blk_clear_rq_complete(struct request *rq)
 
 void blk_insert_flush(struct request *rq);
 
-static inline struct request *__elv_next_request(struct request_queue *q)
-{
-	struct request *rq;
-	struct blk_flush_queue *fq = blk_get_flush_queue(q, NULL);
-
-	WARN_ON_ONCE(q->mq_ops);
-
-	while (1) {
-		if (!list_empty(&q->queue_head)) {
-			rq = list_entry_rq(q->queue_head.next);
-			return rq;
-		}
-
-		/*
-		 * Flush request is running and flush request isn't queueable
-		 * in the drive, we can hold the queue till flush request is
-		 * finished. Even we don't do this, driver can't dispatch next
-		 * requests and will requeue them. And this can improve
-		 * throughput too. For example, we have request flush1, write1,
-		 * flush 2. flush1 is dispatched, then queue is hold, write1
-		 * isn't inserted to queue. After flush1 is finished, flush2
-		 * will be dispatched. Since disk cache is already clean,
-		 * flush2 will be finished very soon, so looks like flush2 is
-		 * folded to flush1.
-		 * Since the queue is hold, a flag is set to indicate the queue
-		 * should be restarted later. Please see flush_end_io() for
-		 * details.
-		 */
-		if (fq->flush_pending_idx != fq->flush_running_idx &&
-				!queue_flush_queueable(q)) {
-			fq->flush_queue_delayed = 1;
-			return NULL;
-		}
-		if (unlikely(blk_queue_bypass(q)) ||
-		    !q->elevator->type->ops.sq.elevator_dispatch_fn(q, 0))
-			return NULL;
-	}
-}
-
 static inline void elv_activate_rq(struct request_queue *q, struct request *rq)
 {
 	struct elevator_queue *e = q->elevator;
diff --git a/block/bounce.c b/block/bounce.c
index 5793c2dc1a15..fceb1a96480b 100644
--- a/block/bounce.c
+++ b/block/bounce.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* bounce buffer handling for block devices
  *
  * - Split from highmem.c
diff --git a/block/bsg-lib.c b/block/bsg-lib.c
index c82408c7cc3c..15d25ccd51a5 100644
--- a/block/bsg-lib.c
+++ b/block/bsg-lib.c
@@ -154,7 +154,6 @@ static int bsg_prepare_job(struct device *dev, struct request *req)
 failjob_rls_rqst_payload:
 	kfree(job->request_payload.sg_list);
 failjob_rls_job:
-	kfree(job);
 	return -ENOMEM;
 }
 
@@ -208,20 +207,34 @@ static int bsg_init_rq(struct request_queue *q, struct request *req, gfp_t gfp)
 	struct bsg_job *job = blk_mq_rq_to_pdu(req);
 	struct scsi_request *sreq = &job->sreq;
 
+	/* called right after the request is allocated for the request_queue */
+
+	sreq->sense = kzalloc(SCSI_SENSE_BUFFERSIZE, gfp);
+	if (!sreq->sense)
+		return -ENOMEM;
+
+	return 0;
+}
+
+static void bsg_initialize_rq(struct request *req)
+{
+	struct bsg_job *job = blk_mq_rq_to_pdu(req);
+	struct scsi_request *sreq = &job->sreq;
+	void *sense = sreq->sense;
+
+	/* called right before the request is given to the request_queue user */
+
 	memset(job, 0, sizeof(*job));
 
 	scsi_req_init(sreq);
+
+	sreq->sense = sense;
 	sreq->sense_len = SCSI_SENSE_BUFFERSIZE;
-	sreq->sense = kzalloc(sreq->sense_len, gfp);
-	if (!sreq->sense)
-		return -ENOMEM;
 
 	job->req = req;
-	job->reply = sreq->sense;
+	job->reply = sense;
 	job->reply_len = sreq->sense_len;
 	job->dd_data = job + 1;
-
-	return 0;
 }
 
 static void bsg_exit_rq(struct request_queue *q, struct request *req)
@@ -252,6 +265,7 @@ struct request_queue *bsg_setup_queue(struct device *dev, const char *name,
 	q->cmd_size = sizeof(struct bsg_job) + dd_job_size;
 	q->init_rq_fn = bsg_init_rq;
 	q->exit_rq_fn = bsg_exit_rq;
+	q->initialize_rq_fn = bsg_initialize_rq;
 	q->request_fn = bsg_request_fn;
 
 	ret = blk_init_allocated_queue(q);
diff --git a/block/bsg.c b/block/bsg.c
index ee1335c68de7..452f94f1c5d4 100644
--- a/block/bsg.c
+++ b/block/bsg.c
@@ -137,7 +137,7 @@ static inline struct hlist_head *bsg_dev_idx_hash(int index)
 
 static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
 				struct sg_io_v4 *hdr, struct bsg_device *bd,
-				fmode_t has_write_perm)
+				fmode_t mode)
 {
 	struct scsi_request *req = scsi_req(rq);
 
@@ -152,7 +152,7 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq,
 		return -EFAULT;
 
 	if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) {
-		if (blk_verify_command(req->cmd, has_write_perm))
+		if (blk_verify_command(req->cmd, mode))
 			return -EPERM;
 	} else if (!capable(CAP_SYS_RAWIO))
 		return -EPERM;
@@ -206,7 +206,7 @@ bsg_validate_sgv4_hdr(struct sg_io_v4 *hdr, int *op)
  * map sg_io_v4 to a request.
  */
 static struct request *
-bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm)
+bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t mode)
 {
 	struct request_queue *q = bd->queue;
 	struct request *rq, *next_rq = NULL;
@@ -237,7 +237,7 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm)
 	if (IS_ERR(rq))
 		return rq;
 
-	ret = blk_fill_sgv4_hdr_rq(q, rq, hdr, bd, has_write_perm);
+	ret = blk_fill_sgv4_hdr_rq(q, rq, hdr, bd, mode);
 	if (ret)
 		goto out;
 
@@ -587,8 +587,7 @@ bsg_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 }
 
 static int __bsg_write(struct bsg_device *bd, const char __user *buf,
-		       size_t count, ssize_t *bytes_written,
-		       fmode_t has_write_perm)
+		       size_t count, ssize_t *bytes_written, fmode_t mode)
 {
 	struct bsg_command *bc;
 	struct request *rq;
@@ -619,7 +618,7 @@ static int __bsg_write(struct bsg_device *bd, const char __user *buf,
 		/*
 		 * get a request, fill in the blanks, and add to request queue
 		 */
-		rq = bsg_map_hdr(bd, &bc->hdr, has_write_perm);
+		rq = bsg_map_hdr(bd, &bc->hdr, mode);
 		if (IS_ERR(rq)) {
 			ret = PTR_ERR(rq);
 			rq = NULL;
@@ -655,8 +654,7 @@ bsg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
 	bsg_set_block(bd, file);
 
 	bytes_written = 0;
-	ret = __bsg_write(bd, buf, count, &bytes_written,
-			  file->f_mode & FMODE_WRITE);
+	ret = __bsg_write(bd, buf, count, &bytes_written, file->f_mode);
 
 	*ppos = bytes_written;
 
@@ -915,7 +913,7 @@ static long bsg_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		if (copy_from_user(&hdr, uarg, sizeof(hdr)))
 			return -EFAULT;
 
-		rq = bsg_map_hdr(bd, &hdr, file->f_mode & FMODE_WRITE);
+		rq = bsg_map_hdr(bd, &hdr, file->f_mode);
 		if (IS_ERR(rq))
 			return PTR_ERR(rq);
 
diff --git a/block/cmdline-parser.c b/block/cmdline-parser.c
index 9dbc67e42a99..f2a14571882b 100644
--- a/block/cmdline-parser.c
+++ b/block/cmdline-parser.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Parse command line, get partition information
  *
diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c
index abaf9d78a206..6ca015f92766 100644
--- a/block/compat_ioctl.c
+++ b/block/compat_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/blkdev.h>
 #include <linux/blkpg.h>
 #include <linux/blktrace_api.h>
diff --git a/block/elevator.c b/block/elevator.c
index 153926a90901..7bda083d5968 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -83,12 +83,25 @@ bool elv_bio_merge_ok(struct request *rq, struct bio *bio)
 }
 EXPORT_SYMBOL(elv_bio_merge_ok);
 
-static struct elevator_type *elevator_find(const char *name)
+static bool elevator_match(const struct elevator_type *e, const char *name)
+{
+	if (!strcmp(e->elevator_name, name))
+		return true;
+	if (e->elevator_alias && !strcmp(e->elevator_alias, name))
+		return true;
+
+	return false;
+}
+
+/*
+ * Return scheduler with name 'name' and with matching 'mq capability
+ */
+static struct elevator_type *elevator_find(const char *name, bool mq)
 {
 	struct elevator_type *e;
 
 	list_for_each_entry(e, &elv_list, list) {
-		if (!strcmp(e->elevator_name, name))
+		if (elevator_match(e, name) && (mq == e->uses_mq))
 			return e;
 	}
 
@@ -100,25 +113,25 @@ static void elevator_put(struct elevator_type *e)
 	module_put(e->elevator_owner);
 }
 
-static struct elevator_type *elevator_get(const char *name, bool try_loading)
+static struct elevator_type *elevator_get(struct request_queue *q,
+					  const char *name, bool try_loading)
 {
 	struct elevator_type *e;
 
 	spin_lock(&elv_list_lock);
 
-	e = elevator_find(name);
+	e = elevator_find(name, q->mq_ops != NULL);
 	if (!e && try_loading) {
 		spin_unlock(&elv_list_lock);
 		request_module("%s-iosched", name);
 		spin_lock(&elv_list_lock);
-		e = elevator_find(name);
+		e = elevator_find(name, q->mq_ops != NULL);
 	}
 
 	if (e && !try_module_get(e->elevator_owner))
 		e = NULL;
 
 	spin_unlock(&elv_list_lock);
-
 	return e;
 }
 
@@ -144,8 +157,12 @@ void __init load_default_elevator_module(void)
 	if (!chosen_elevator[0])
 		return;
 
+	/*
+	 * Boot parameter is deprecated, we haven't supported that for MQ.
+	 * Only look for non-mq schedulers from here.
+	 */
 	spin_lock(&elv_list_lock);
-	e = elevator_find(chosen_elevator);
+	e = elevator_find(chosen_elevator, false);
 	spin_unlock(&elv_list_lock);
 
 	if (!e)
@@ -202,7 +219,7 @@ int elevator_init(struct request_queue *q, char *name)
 	q->boundary_rq = NULL;
 
 	if (name) {
-		e = elevator_get(name, true);
+		e = elevator_get(q, name, true);
 		if (!e)
 			return -EINVAL;
 	}
@@ -214,7 +231,7 @@ int elevator_init(struct request_queue *q, char *name)
 	 * allowed from async.
 	 */
 	if (!e && !q->mq_ops && *chosen_elevator) {
-		e = elevator_get(chosen_elevator, false);
+		e = elevator_get(q, chosen_elevator, false);
 		if (!e)
 			printk(KERN_ERR "I/O scheduler %s not found\n",
 							chosen_elevator);
@@ -229,17 +246,17 @@ int elevator_init(struct request_queue *q, char *name)
 		 */
 		if (q->mq_ops) {
 			if (q->nr_hw_queues == 1)
-				e = elevator_get("mq-deadline", false);
+				e = elevator_get(q, "mq-deadline", false);
 			if (!e)
 				return 0;
 		} else
-			e = elevator_get(CONFIG_DEFAULT_IOSCHED, false);
+			e = elevator_get(q, CONFIG_DEFAULT_IOSCHED, false);
 
 		if (!e) {
 			printk(KERN_ERR
 				"Default I/O scheduler not found. " \
 				"Using noop.\n");
-			e = elevator_get("noop", false);
+			e = elevator_get(q, "noop", false);
 		}
 	}
 
@@ -905,7 +922,7 @@ int elv_register(struct elevator_type *e)
 
 	/* register, don't allow duplicate names */
 	spin_lock(&elv_list_lock);
-	if (elevator_find(e->elevator_name)) {
+	if (elevator_find(e->elevator_name, e->uses_mq)) {
 		spin_unlock(&elv_list_lock);
 		if (e->icq_cache)
 			kmem_cache_destroy(e->icq_cache);
@@ -915,9 +932,9 @@ int elv_register(struct elevator_type *e)
 	spin_unlock(&elv_list_lock);
 
 	/* print pretty message */
-	if (!strcmp(e->elevator_name, chosen_elevator) ||
+	if (elevator_match(e, chosen_elevator) ||
 			(!*chosen_elevator &&
-			 !strcmp(e->elevator_name, CONFIG_DEFAULT_IOSCHED)))
+			 elevator_match(e, CONFIG_DEFAULT_IOSCHED)))
 				def = " (default)";
 
 	printk(KERN_INFO "io scheduler %s registered%s\n", e->elevator_name,
@@ -1066,25 +1083,15 @@ static int __elevator_change(struct request_queue *q, const char *name)
 		return elevator_switch(q, NULL);
 
 	strlcpy(elevator_name, name, sizeof(elevator_name));
-	e = elevator_get(strstrip(elevator_name), true);
+	e = elevator_get(q, strstrip(elevator_name), true);
 	if (!e)
 		return -EINVAL;
 
-	if (q->elevator &&
-	    !strcmp(elevator_name, q->elevator->type->elevator_name)) {
+	if (q->elevator && elevator_match(q->elevator->type, elevator_name)) {
 		elevator_put(e);
 		return 0;
 	}
 
-	if (!e->uses_mq && q->mq_ops) {
-		elevator_put(e);
-		return -EINVAL;
-	}
-	if (e->uses_mq && !q->mq_ops) {
-		elevator_put(e);
-		return -EINVAL;
-	}
-
 	return elevator_switch(q, e);
 }
 
@@ -1116,9 +1123,10 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name)
 	struct elevator_queue *e = q->elevator;
 	struct elevator_type *elv = NULL;
 	struct elevator_type *__e;
+	bool uses_mq = q->mq_ops != NULL;
 	int len = 0;
 
-	if (!blk_queue_stackable(q))
+	if (!queue_is_rq_based(q))
 		return sprintf(name, "none\n");
 
 	if (!q->elevator)
@@ -1128,7 +1136,8 @@ ssize_t elv_iosched_show(struct request_queue *q, char *name)
 
 	spin_lock(&elv_list_lock);
 	list_for_each_entry(__e, &elv_list, list) {
-		if (elv && !strcmp(elv->elevator_name, __e->elevator_name)) {
+		if (elv && elevator_match(elv, __e->elevator_name) &&
+		    (__e->uses_mq == uses_mq)) {
 			len += sprintf(name+len, "[%s] ", elv->elevator_name);
 			continue;
 		}
diff --git a/block/genhd.c b/block/genhd.c
index dd305c65ffb0..c2223f12a805 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -588,6 +588,11 @@ static void register_disk(struct device *parent, struct gendisk *disk)
 	disk->part0.holder_dir = kobject_create_and_add("holders", &ddev->kobj);
 	disk->slave_dir = kobject_create_and_add("slaves", &ddev->kobj);
 
+	if (disk->flags & GENHD_FL_HIDDEN) {
+		dev_set_uevent_suppress(ddev, 0);
+		return;
+	}
+
 	/* No minors to use for partitions */
 	if (!disk_part_scan_enabled(disk))
 		goto exit;
@@ -616,6 +621,11 @@ exit:
 	while ((part = disk_part_iter_next(&piter)))
 		kobject_uevent(&part_to_dev(part)->kobj, KOBJ_ADD);
 	disk_part_iter_exit(&piter);
+
+	err = sysfs_create_link(&ddev->kobj,
+				&disk->queue->backing_dev_info->dev->kobj,
+				"bdi");
+	WARN_ON(err);
 }
 
 /**
@@ -630,7 +640,6 @@ exit:
  */
 void device_add_disk(struct device *parent, struct gendisk *disk)
 {
-	struct backing_dev_info *bdi;
 	dev_t devt;
 	int retval;
 
@@ -639,7 +648,8 @@ void device_add_disk(struct device *parent, struct gendisk *disk)
 	 * parameters make sense.
 	 */
 	WARN_ON(disk->minors && !(disk->major || disk->first_minor));
-	WARN_ON(!disk->minors && !(disk->flags & GENHD_FL_EXT_DEVT));
+	WARN_ON(!disk->minors &&
+		!(disk->flags & (GENHD_FL_EXT_DEVT | GENHD_FL_HIDDEN)));
 
 	disk->flags |= GENHD_FL_UP;
 
@@ -648,22 +658,26 @@ void device_add_disk(struct device *parent, struct gendisk *disk)
 		WARN_ON(1);
 		return;
 	}
-	disk_to_dev(disk)->devt = devt;
-
-	/* ->major and ->first_minor aren't supposed to be
-	 * dereferenced from here on, but set them just in case.
-	 */
 	disk->major = MAJOR(devt);
 	disk->first_minor = MINOR(devt);
 
 	disk_alloc_events(disk);
 
-	/* Register BDI before referencing it from bdev */
-	bdi = disk->queue->backing_dev_info;
-	bdi_register_owner(bdi, disk_to_dev(disk));
-
-	blk_register_region(disk_devt(disk), disk->minors, NULL,
-			    exact_match, exact_lock, disk);
+	if (disk->flags & GENHD_FL_HIDDEN) {
+		/*
+		 * Don't let hidden disks show up in /proc/partitions,
+		 * and don't bother scanning for partitions either.
+		 */
+		disk->flags |= GENHD_FL_SUPPRESS_PARTITION_INFO;
+		disk->flags |= GENHD_FL_NO_PART_SCAN;
+	} else {
+		/* Register BDI before referencing it from bdev */
+		disk_to_dev(disk)->devt = devt;
+		bdi_register_owner(disk->queue->backing_dev_info,
+				disk_to_dev(disk));
+		blk_register_region(disk_devt(disk), disk->minors, NULL,
+				    exact_match, exact_lock, disk);
+	}
 	register_disk(parent, disk);
 	blk_register_queue(disk);
 
@@ -673,10 +687,6 @@ void device_add_disk(struct device *parent, struct gendisk *disk)
 	 */
 	WARN_ON_ONCE(!blk_get_queue(disk->queue));
 
-	retval = sysfs_create_link(&disk_to_dev(disk)->kobj, &bdi->dev->kobj,
-				   "bdi");
-	WARN_ON(retval);
-
 	disk_add_events(disk);
 	blk_integrity_add(disk);
 }
@@ -705,7 +715,8 @@ void del_gendisk(struct gendisk *disk)
 	set_capacity(disk, 0);
 	disk->flags &= ~GENHD_FL_UP;
 
-	sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
+	if (!(disk->flags & GENHD_FL_HIDDEN))
+		sysfs_remove_link(&disk_to_dev(disk)->kobj, "bdi");
 	if (disk->queue) {
 		/*
 		 * Unregister bdi before releasing device numbers (as they can
@@ -716,13 +727,15 @@ void del_gendisk(struct gendisk *disk)
 	} else {
 		WARN_ON(1);
 	}
-	blk_unregister_region(disk_devt(disk), disk->minors);
 
-	part_stat_set_all(&disk->part0, 0);
-	disk->part0.stamp = 0;
+	if (!(disk->flags & GENHD_FL_HIDDEN))
+		blk_unregister_region(disk_devt(disk), disk->minors);
 
 	kobject_put(disk->part0.holder_dir);
 	kobject_put(disk->slave_dir);
+
+	part_stat_set_all(&disk->part0, 0);
+	disk->part0.stamp = 0;
 	if (!sysfs_deprecated)
 		sysfs_remove_link(block_depr, dev_name(disk_to_dev(disk)));
 	pm_runtime_set_memalloc_noio(disk_to_dev(disk), false);
@@ -785,6 +798,10 @@ struct gendisk *get_gendisk(dev_t devt, int *partno)
 		spin_unlock_bh(&ext_devt_lock);
 	}
 
+	if (disk && unlikely(disk->flags & GENHD_FL_HIDDEN)) {
+		put_disk(disk);
+		disk = NULL;
+	}
 	return disk;
 }
 EXPORT_SYMBOL(get_gendisk);
@@ -1028,6 +1045,15 @@ static ssize_t disk_removable_show(struct device *dev,
 		       (disk->flags & GENHD_FL_REMOVABLE ? 1 : 0));
 }
 
+static ssize_t disk_hidden_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct gendisk *disk = dev_to_disk(dev);
+
+	return sprintf(buf, "%d\n",
+		       (disk->flags & GENHD_FL_HIDDEN ? 1 : 0));
+}
+
 static ssize_t disk_ro_show(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
@@ -1065,6 +1091,7 @@ static ssize_t disk_discard_alignment_show(struct device *dev,
 static DEVICE_ATTR(range, S_IRUGO, disk_range_show, NULL);
 static DEVICE_ATTR(ext_range, S_IRUGO, disk_ext_range_show, NULL);
 static DEVICE_ATTR(removable, S_IRUGO, disk_removable_show, NULL);
+static DEVICE_ATTR(hidden, S_IRUGO, disk_hidden_show, NULL);
 static DEVICE_ATTR(ro, S_IRUGO, disk_ro_show, NULL);
 static DEVICE_ATTR(size, S_IRUGO, part_size_show, NULL);
 static DEVICE_ATTR(alignment_offset, S_IRUGO, disk_alignment_offset_show, NULL);
@@ -1089,6 +1116,7 @@ static struct attribute *disk_attrs[] = {
 	&dev_attr_range.attr,
 	&dev_attr_ext_range.attr,
 	&dev_attr_removable.attr,
+	&dev_attr_hidden.attr,
 	&dev_attr_ro.attr,
 	&dev_attr_size.attr,
 	&dev_attr_alignment_offset.attr,
@@ -1354,13 +1382,7 @@ dev_t blk_lookup_devt(const char *name, int partno)
 }
 EXPORT_SYMBOL(blk_lookup_devt);
 
-struct gendisk *alloc_disk(int minors)
-{
-	return alloc_disk_node(minors, NUMA_NO_NODE);
-}
-EXPORT_SYMBOL(alloc_disk);
-
-struct gendisk *alloc_disk_node(int minors, int node_id)
+struct gendisk *__alloc_disk_node(int minors, int node_id)
 {
 	struct gendisk *disk;
 	struct disk_part_tbl *ptbl;
@@ -1411,7 +1433,7 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
 	}
 	return disk;
 }
-EXPORT_SYMBOL(alloc_disk_node);
+EXPORT_SYMBOL(__alloc_disk_node);
 
 struct kobject *get_disk(struct gendisk *disk)
 {
diff --git a/block/ioctl.c b/block/ioctl.c
index 0de02ee67eed..1668506d8ed8 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -202,10 +202,16 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode,
 {
 	uint64_t range[2];
 	uint64_t start, len;
+	struct request_queue *q = bdev_get_queue(bdev);
+	struct address_space *mapping = bdev->bd_inode->i_mapping;
+
 
 	if (!(mode & FMODE_WRITE))
 		return -EBADF;
 
+	if (!blk_queue_discard(q))
+		return -EOPNOTSUPP;
+
 	if (copy_from_user(range, (void __user *)arg, sizeof(range)))
 		return -EFAULT;
 
@@ -216,12 +222,12 @@ static int blk_ioctl_discard(struct block_device *bdev, fmode_t mode,
 		return -EINVAL;
 	if (len & 511)
 		return -EINVAL;
-	start >>= 9;
-	len >>= 9;
 
-	if (start + len > (i_size_read(bdev->bd_inode) >> 9))
+	if (start + len > i_size_read(bdev->bd_inode))
 		return -EINVAL;
-	return blkdev_issue_discard(bdev, start, len, GFP_KERNEL, flags);
+	truncate_inode_pages_range(mapping, start, start + len);
+	return blkdev_issue_discard(bdev, start >> 9, len >> 9,
+				    GFP_KERNEL, flags);
 }
 
 static int blk_ioctl_zeroout(struct block_device *bdev, fmode_t mode,
@@ -437,11 +443,12 @@ static int blkdev_roset(struct block_device *bdev, fmode_t mode,
 {
 	int ret, n;
 
+	if (!capable(CAP_SYS_ADMIN))
+		return -EACCES;
+
 	ret = __blkdev_driver_ioctl(bdev, mode, cmd, arg);
 	if (!is_unrecognized_ioctl(ret))
 		return ret;
-	if (!capable(CAP_SYS_ADMIN))
-		return -EACCES;
 	if (get_user(n, (int __user *)arg))
 		return -EFAULT;
 	set_device_ro(bdev, n);
diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index f58cab82105b..b4df317c2916 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -541,9 +541,17 @@ static int kyber_get_domain_token(struct kyber_queue_data *kqd,
 
 		/*
 		 * Try again in case a token was freed before we got on the wait
-		 * queue.
+		 * queue. The waker may have already removed the entry from the
+		 * wait queue, but list_del_init() is okay with that.
 		 */
 		nr = __sbitmap_queue_get(domain_tokens);
+		if (nr >= 0) {
+			unsigned long flags;
+
+			spin_lock_irqsave(&ws->wait.lock, flags);
+			list_del_init(&wait->entry);
+			spin_unlock_irqrestore(&ws->wait.lock, flags);
+		}
 	}
 	return nr;
 }
@@ -641,7 +649,7 @@ static bool kyber_has_work(struct blk_mq_hw_ctx *hctx)
 		if (!list_empty_careful(&khd->rqs[i]))
 			return true;
 	}
-	return false;
+	return sbitmap_any_bit_set(&hctx->ctx_map);
 }
 
 #define KYBER_LAT_SHOW_STORE(op)					\
diff --git a/block/mq-deadline.c b/block/mq-deadline.c
index a1cad4331edd..0179e484ec98 100644
--- a/block/mq-deadline.c
+++ b/block/mq-deadline.c
@@ -657,6 +657,7 @@ static struct elevator_type mq_deadline = {
 #endif
 	.elevator_attrs = deadline_attrs,
 	.elevator_name = "mq-deadline",
+	.elevator_alias = "deadline",
 	.elevator_owner = THIS_MODULE,
 };
 MODULE_ALIAS("mq-deadline-iosched");
diff --git a/block/partition-generic.c b/block/partition-generic.c
index 86e8fe1adcdb..91622db9aedf 100644
--- a/block/partition-generic.c
+++ b/block/partition-generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Code extracted from drivers/block/genhd.c
  *  Copyright (C) 1991-1998  Linus Torvalds
@@ -112,7 +113,7 @@ ssize_t part_stat_show(struct device *dev,
 		       struct device_attribute *attr, char *buf)
 {
 	struct hd_struct *p = dev_to_part(dev);
-	struct request_queue *q = dev_to_disk(dev)->queue;
+	struct request_queue *q = part_to_disk(p)->queue;
 	unsigned int inflight[2];
 	int cpu;
 
diff --git a/block/partitions/Kconfig b/block/partitions/Kconfig
index 9b29a996c311..37b9710cc80a 100644
--- a/block/partitions/Kconfig
+++ b/block/partitions/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Partition configuration
 #
diff --git a/block/partitions/Makefile b/block/partitions/Makefile
index 37a95270503c..2f276b677c81 100644
--- a/block/partitions/Makefile
+++ b/block/partitions/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/block/partitions/acorn.h b/block/partitions/acorn.h
index ede828529692..67b06601ca4c 100644
--- a/block/partitions/acorn.h
+++ b/block/partitions/acorn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/partitions/acorn.h
  *
diff --git a/block/partitions/aix.c b/block/partitions/aix.c
index f3ed7b2d89bf..007f95eea0e1 100644
--- a/block/partitions/aix.c
+++ b/block/partitions/aix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/aix.c
  *
diff --git a/block/partitions/amiga.c b/block/partitions/amiga.c
index 2b13533d60a2..560936617d9c 100644
--- a/block/partitions/amiga.c
+++ b/block/partitions/amiga.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/amiga.c
  *
diff --git a/block/partitions/atari.c b/block/partitions/atari.c
index ff1fb93712c1..2305840c8522 100644
--- a/block/partitions/atari.c
+++ b/block/partitions/atari.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/atari.c
  *
diff --git a/block/partitions/atari.h b/block/partitions/atari.h
index f2ec43bfeec1..01c2b9457394 100644
--- a/block/partitions/atari.h
+++ b/block/partitions/atari.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  fs/partitions/atari.h
  *  Moved by Russell King from:
diff --git a/block/partitions/check.c b/block/partitions/check.c
index 16118d11dbfc..720145c49066 100644
--- a/block/partitions/check.c
+++ b/block/partitions/check.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/check.c
  *
diff --git a/block/partitions/check.h b/block/partitions/check.h
index eade17ea910b..6042f769471a 100644
--- a/block/partitions/check.h
+++ b/block/partitions/check.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/pagemap.h>
 #include <linux/blkdev.h>
 #include <linux/genhd.h>
diff --git a/block/partitions/cmdline.c b/block/partitions/cmdline.c
index 5141b563adf1..e333583ab38c 100644
--- a/block/partitions/cmdline.c
+++ b/block/partitions/cmdline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013 HUAWEI
  * Author: Cai Zhiyong <caizhiyong@huawei.com>
diff --git a/block/partitions/cmdline.h b/block/partitions/cmdline.h
index 26e0f8da1414..e64a31636a1f 100644
--- a/block/partitions/cmdline.h
+++ b/block/partitions/cmdline.h
@@ -1,2 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 int cmdline_partition(struct parsed_partitions *state);
diff --git a/block/partitions/ibm.c b/block/partitions/ibm.c
index 14b081af8d61..a5d480f807f3 100644
--- a/block/partitions/ibm.c
+++ b/block/partitions/ibm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *                  Volker Sameske <sameske@de.ibm.com>
diff --git a/block/partitions/karma.c b/block/partitions/karma.c
index 9721fa589bb1..59812d705c3d 100644
--- a/block/partitions/karma.c
+++ b/block/partitions/karma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/karma.c
  *  Rio Karma partition info.
diff --git a/block/partitions/mac.c b/block/partitions/mac.c
index 621317ac4d59..b6095335636c 100644
--- a/block/partitions/mac.c
+++ b/block/partitions/mac.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/mac.c
  *
diff --git a/block/partitions/mac.h b/block/partitions/mac.h
index 3c7d98436380..453ed2964804 100644
--- a/block/partitions/mac.h
+++ b/block/partitions/mac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  fs/partitions/mac.h
  */
diff --git a/block/partitions/msdos.c b/block/partitions/msdos.c
index 5610cd537da7..0af3a3db6fb0 100644
--- a/block/partitions/msdos.c
+++ b/block/partitions/msdos.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/msdos.c
  *
diff --git a/block/partitions/osf.c b/block/partitions/osf.c
index 764b86a01965..4b873973d6c0 100644
--- a/block/partitions/osf.c
+++ b/block/partitions/osf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/osf.c
  *
diff --git a/block/partitions/sgi.c b/block/partitions/sgi.c
index ea8a86dceaf4..d7b421c6e530 100644
--- a/block/partitions/sgi.c
+++ b/block/partitions/sgi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/sgi.c
  *
diff --git a/block/partitions/sun.c b/block/partitions/sun.c
index b5b6fcfb3d36..90f36724e796 100644
--- a/block/partitions/sun.c
+++ b/block/partitions/sun.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/sun.c
  *
diff --git a/block/partitions/sysv68.c b/block/partitions/sysv68.c
index 9627ccffc1c4..92e810826b01 100644
--- a/block/partitions/sysv68.c
+++ b/block/partitions/sysv68.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/sysv68.c
  *
diff --git a/block/partitions/ultrix.c b/block/partitions/ultrix.c
index 8dbaf9f77a99..ecd0d7346c3d 100644
--- a/block/partitions/ultrix.c
+++ b/block/partitions/ultrix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/partitions/ultrix.c
  *
diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index 7440de44dd85..edcfff974527 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -207,7 +207,7 @@ static void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter)
 	__set_bit(GPCMD_SET_READ_AHEAD, filter->write_ok);
 }
 
-int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm)
+int blk_verify_command(unsigned char *cmd, fmode_t mode)
 {
 	struct blk_cmd_filter *filter = &blk_default_cmd_filter;
 
@@ -220,7 +220,7 @@ int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm)
 		return 0;
 
 	/* Write-safe commands require a writable open */
-	if (test_bit(cmd[0], filter->write_ok) && has_write_perm)
+	if (test_bit(cmd[0], filter->write_ok) && (mode & FMODE_WRITE))
 		return 0;
 
 	return -EPERM;
@@ -234,7 +234,7 @@ static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq,
 
 	if (copy_from_user(req->cmd, hdr->cmdp, hdr->cmd_len))
 		return -EFAULT;
-	if (blk_verify_command(req->cmd, mode & FMODE_WRITE))
+	if (blk_verify_command(req->cmd, mode))
 		return -EPERM;
 
 	/*
@@ -469,7 +469,7 @@ int sg_scsi_ioctl(struct request_queue *q, struct gendisk *disk, fmode_t mode,
 	if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len))
 		goto error;
 
-	err = blk_verify_command(req->cmd, mode & FMODE_WRITE);
+	err = blk_verify_command(req->cmd, mode);
 	if (err)
 		goto error;
 
diff --git a/certs/Kconfig b/certs/Kconfig
index 6ce51ede9e9b..5f7663df6e8e 100644
--- a/certs/Kconfig
+++ b/certs/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Certificates for signature checking"
 
 config MODULE_SIG_KEY
diff --git a/certs/Makefile b/certs/Makefile
index 847361ce14d1..5d0999b9e21b 100644
--- a/certs/Makefile
+++ b/certs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel signature checking certificates.
 #
diff --git a/certs/blacklist_hashes.c b/certs/blacklist_hashes.c
index 5bd449f7db17..344892337be0 100644
--- a/certs/blacklist_hashes.c
+++ b/certs/blacklist_hashes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "blacklist.h"
 
 const char __initdata *const blacklist_hashes[] = {
diff --git a/certs/blacklist_nohashes.c b/certs/blacklist_nohashes.c
index 851de10706a5..73fd99098ad7 100644
--- a/certs/blacklist_nohashes.c
+++ b/certs/blacklist_nohashes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "blacklist.h"
 
 const char __initdata *const blacklist_hashes[] = {
diff --git a/certs/system_certificates.S b/certs/system_certificates.S
index c9ceb71a43fe..3918ff7235ed 100644
--- a/certs/system_certificates.S
+++ b/certs/system_certificates.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/export.h>
 #include <linux/init.h>
 
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 0a121f9ddf8e..f7911963bb79 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Generic algorithms support
 #
@@ -859,6 +860,17 @@ config CRYPTO_SHA3
 	  References:
 	  http://keccak.noekeon.org/
 
+config CRYPTO_SM3
+	tristate "SM3 digest algorithm"
+	select CRYPTO_HASH
+	help
+	  SM3 secure hash function as defined by OSCCA GM/T 0004-2012 SM3).
+	  It is part of the Chinese Commercial Cryptography suite.
+
+	  References:
+	  http://www.oscca.gov.cn/UpFile/20101222141857786.pdf
+	  https://datatracker.ietf.org/doc/html/draft-shen-sm3-hash
+
 config CRYPTO_TGR192
 	tristate "Tiger digest algorithms"
 	select CRYPTO_HASH
diff --git a/crypto/Makefile b/crypto/Makefile
index d41f0331b085..d674884b2d51 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Cryptographic API
 #
@@ -70,6 +71,7 @@ obj-$(CONFIG_CRYPTO_SHA1) += sha1_generic.o
 obj-$(CONFIG_CRYPTO_SHA256) += sha256_generic.o
 obj-$(CONFIG_CRYPTO_SHA512) += sha512_generic.o
 obj-$(CONFIG_CRYPTO_SHA3) += sha3_generic.o
+obj-$(CONFIG_CRYPTO_SM3) += sm3_generic.o
 obj-$(CONFIG_CRYPTO_WP512) += wp512.o
 CFLAGS_wp512.o := $(call cc-option,-fno-schedule-insns)  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79149
 obj-$(CONFIG_CRYPTO_TGR192) += tgr192.o
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index ffa9f4ccd9b4..85cea9de324a 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -481,33 +481,6 @@ int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con)
 }
 EXPORT_SYMBOL_GPL(af_alg_cmsg_send);
 
-int af_alg_wait_for_completion(int err, struct af_alg_completion *completion)
-{
-	switch (err) {
-	case -EINPROGRESS:
-	case -EBUSY:
-		wait_for_completion(&completion->completion);
-		reinit_completion(&completion->completion);
-		err = completion->err;
-		break;
-	};
-
-	return err;
-}
-EXPORT_SYMBOL_GPL(af_alg_wait_for_completion);
-
-void af_alg_complete(struct crypto_async_request *req, int err)
-{
-	struct af_alg_completion *completion = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	completion->err = err;
-	complete(&completion->completion);
-}
-EXPORT_SYMBOL_GPL(af_alg_complete);
-
 /**
  * af_alg_alloc_tsgl - allocate the TX SGL
  *
@@ -619,14 +592,14 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst,
 	struct af_alg_ctx *ctx = ask->private;
 	struct af_alg_tsgl *sgl;
 	struct scatterlist *sg;
-	unsigned int i, j;
+	unsigned int i, j = 0;
 
 	while (!list_empty(&ctx->tsgl_list)) {
 		sgl = list_first_entry(&ctx->tsgl_list, struct af_alg_tsgl,
 				       list);
 		sg = sgl->sg;
 
-		for (i = 0, j = 0; i < sgl->cur; i++) {
+		for (i = 0; i < sgl->cur; i++) {
 			size_t plen = min_t(size_t, used, sg[i].length);
 			struct page *page = sg_page(sg + i);
 
diff --git a/crypto/ahash.c b/crypto/ahash.c
index 5e8666e6ccae..3a35d67de7d9 100644
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -334,9 +334,7 @@ static int ahash_op_unaligned(struct ahash_request *req,
 		return err;
 
 	err = op(req);
-	if (err == -EINPROGRESS ||
-	    (err == -EBUSY && (ahash_request_flags(req) &
-			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err == -EINPROGRESS || err == -EBUSY)
 		return err;
 
 	ahash_restore_req(req, err);
@@ -394,9 +392,7 @@ static int ahash_def_finup_finish1(struct ahash_request *req, int err)
 	req->base.complete = ahash_def_finup_done2;
 
 	err = crypto_ahash_reqtfm(req)->final(req);
-	if (err == -EINPROGRESS ||
-	    (err == -EBUSY && (ahash_request_flags(req) &
-			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err == -EINPROGRESS || err == -EBUSY)
 		return err;
 
 out:
@@ -432,9 +428,7 @@ static int ahash_def_finup(struct ahash_request *req)
 		return err;
 
 	err = tfm->update(req);
-	if (err == -EINPROGRESS ||
-	    (err == -EBUSY && (ahash_request_flags(req) &
-			       CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err == -EINPROGRESS || err == -EBUSY)
 		return err;
 
 	return ahash_def_finup_finish1(req, err);
diff --git a/crypto/algapi.c b/crypto/algapi.c
index aa699ff6c876..60d7366ed343 100644
--- a/crypto/algapi.c
+++ b/crypto/algapi.c
@@ -897,9 +897,11 @@ int crypto_enqueue_request(struct crypto_queue *queue,
 	int err = -EINPROGRESS;
 
 	if (unlikely(queue->qlen >= queue->max_qlen)) {
-		err = -EBUSY;
-		if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+		if (!(request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
+			err = -ENOSPC;
 			goto out;
+		}
+		err = -EBUSY;
 		if (queue->backlog == &queue->list)
 			queue->backlog = &request->list;
 	}
diff --git a/crypto/algboss.c b/crypto/algboss.c
index 960d8548171b..5e6df2a087fa 100644
--- a/crypto/algboss.c
+++ b/crypto/algboss.c
@@ -122,7 +122,6 @@ static int cryptomgr_schedule_probe(struct crypto_larval *larval)
 		int notnum = 0;
 
 		name = ++p;
-		len = 0;
 
 		for (; isalnum(*p) || *p == '-' || *p == '_'; p++)
 			notnum |= !isdigit(*p);
diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
index 516b38c3a169..aacae0837aff 100644
--- a/crypto/algif_aead.c
+++ b/crypto/algif_aead.c
@@ -278,11 +278,11 @@ static int _aead_recvmsg(struct socket *sock, struct msghdr *msg,
 		/* Synchronous operation */
 		aead_request_set_callback(&areq->cra_u.aead_req,
 					  CRYPTO_TFM_REQ_MAY_BACKLOG,
-					  af_alg_complete, &ctx->completion);
-		err = af_alg_wait_for_completion(ctx->enc ?
+					  crypto_req_done, &ctx->wait);
+		err = crypto_wait_req(ctx->enc ?
 				crypto_aead_encrypt(&areq->cra_u.aead_req) :
 				crypto_aead_decrypt(&areq->cra_u.aead_req),
-						 &ctx->completion);
+				&ctx->wait);
 	}
 
 	/* AIO operation in progress */
@@ -554,7 +554,7 @@ static int aead_accept_parent_nokey(void *private, struct sock *sk)
 	ctx->merge = 0;
 	ctx->enc = 0;
 	ctx->aead_assoclen = 0;
-	af_alg_init_completion(&ctx->completion);
+	crypto_init_wait(&ctx->wait);
 
 	ask->private = ctx;
 
diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 5e92bd275ef3..76d2e716c792 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -26,7 +26,7 @@ struct hash_ctx {
 
 	u8 *result;
 
-	struct af_alg_completion completion;
+	struct crypto_wait wait;
 
 	unsigned int len;
 	bool more;
@@ -88,8 +88,7 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 		if ((msg->msg_flags & MSG_MORE))
 			hash_free_result(sk, ctx);
 
-		err = af_alg_wait_for_completion(crypto_ahash_init(&ctx->req),
-						&ctx->completion);
+		err = crypto_wait_req(crypto_ahash_init(&ctx->req), &ctx->wait);
 		if (err)
 			goto unlock;
 	}
@@ -110,8 +109,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 
 		ahash_request_set_crypt(&ctx->req, ctx->sgl.sg, NULL, len);
 
-		err = af_alg_wait_for_completion(crypto_ahash_update(&ctx->req),
-						 &ctx->completion);
+		err = crypto_wait_req(crypto_ahash_update(&ctx->req),
+				      &ctx->wait);
 		af_alg_free_sg(&ctx->sgl);
 		if (err)
 			goto unlock;
@@ -129,8 +128,8 @@ static int hash_sendmsg(struct socket *sock, struct msghdr *msg,
 			goto unlock;
 
 		ahash_request_set_crypt(&ctx->req, NULL, ctx->result, 0);
-		err = af_alg_wait_for_completion(crypto_ahash_final(&ctx->req),
-						 &ctx->completion);
+		err = crypto_wait_req(crypto_ahash_final(&ctx->req),
+				      &ctx->wait);
 	}
 
 unlock:
@@ -171,7 +170,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
 	} else {
 		if (!ctx->more) {
 			err = crypto_ahash_init(&ctx->req);
-			err = af_alg_wait_for_completion(err, &ctx->completion);
+			err = crypto_wait_req(err, &ctx->wait);
 			if (err)
 				goto unlock;
 		}
@@ -179,7 +178,7 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
 		err = crypto_ahash_update(&ctx->req);
 	}
 
-	err = af_alg_wait_for_completion(err, &ctx->completion);
+	err = crypto_wait_req(err, &ctx->wait);
 	if (err)
 		goto unlock;
 
@@ -215,17 +214,16 @@ static int hash_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
 	ahash_request_set_crypt(&ctx->req, NULL, ctx->result, 0);
 
 	if (!result && !ctx->more) {
-		err = af_alg_wait_for_completion(
-				crypto_ahash_init(&ctx->req),
-				&ctx->completion);
+		err = crypto_wait_req(crypto_ahash_init(&ctx->req),
+				      &ctx->wait);
 		if (err)
 			goto unlock;
 	}
 
 	if (!result || ctx->more) {
 		ctx->more = 0;
-		err = af_alg_wait_for_completion(crypto_ahash_final(&ctx->req),
-						 &ctx->completion);
+		err = crypto_wait_req(crypto_ahash_final(&ctx->req),
+				      &ctx->wait);
 		if (err)
 			goto unlock;
 	}
@@ -476,13 +474,13 @@ static int hash_accept_parent_nokey(void *private, struct sock *sk)
 	ctx->result = NULL;
 	ctx->len = len;
 	ctx->more = 0;
-	af_alg_init_completion(&ctx->completion);
+	crypto_init_wait(&ctx->wait);
 
 	ask->private = ctx;
 
 	ahash_request_set_tfm(&ctx->req, hash);
 	ahash_request_set_callback(&ctx->req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   af_alg_complete, &ctx->completion);
+				   crypto_req_done, &ctx->wait);
 
 	sk->sk_destruct = hash_sock_destruct;
 
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 8ae4170aaeb4..9954b078f0b9 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -129,12 +129,11 @@ static int _skcipher_recvmsg(struct socket *sock, struct msghdr *msg,
 		skcipher_request_set_callback(&areq->cra_u.skcipher_req,
 					      CRYPTO_TFM_REQ_MAY_SLEEP |
 					      CRYPTO_TFM_REQ_MAY_BACKLOG,
-					      af_alg_complete,
-					      &ctx->completion);
-		err = af_alg_wait_for_completion(ctx->enc ?
+					      crypto_req_done, &ctx->wait);
+		err = crypto_wait_req(ctx->enc ?
 			crypto_skcipher_encrypt(&areq->cra_u.skcipher_req) :
 			crypto_skcipher_decrypt(&areq->cra_u.skcipher_req),
-						 &ctx->completion);
+						 &ctx->wait);
 	}
 
 	/* AIO operation in progress */
@@ -388,7 +387,7 @@ static int skcipher_accept_parent_nokey(void *private, struct sock *sk)
 	ctx->more = 0;
 	ctx->merge = 0;
 	ctx->enc = 0;
-	af_alg_init_completion(&ctx->completion);
+	crypto_init_wait(&ctx->wait);
 
 	ask->private = ctx;
 
diff --git a/crypto/api.c b/crypto/api.c
index 941cd4c6c7ec..2a2479d168aa 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -24,6 +24,7 @@
 #include <linux/sched/signal.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/completion.h>
 #include "internal.h"
 
 LIST_HEAD(crypto_alg_list);
@@ -595,5 +596,17 @@ int crypto_has_alg(const char *name, u32 type, u32 mask)
 }
 EXPORT_SYMBOL_GPL(crypto_has_alg);
 
+void crypto_req_done(struct crypto_async_request *req, int err)
+{
+	struct crypto_wait *wait = req->data;
+
+	if (err == -EINPROGRESS)
+		return;
+
+	wait->err = err;
+	complete(&wait->completion);
+}
+EXPORT_SYMBOL_GPL(crypto_req_done);
+
 MODULE_DESCRIPTION("Cryptographic core API");
 MODULE_LICENSE("GPL");
diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index 331f6baf2df8..f3702e533ff4 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ASYMMETRIC_KEY_TYPE
 	bool "Asymmetric (public-key cryptographic) key type"
 	depends on KEYS
diff --git a/crypto/asymmetric_keys/Makefile b/crypto/asymmetric_keys/Makefile
index 6516855bec18..4719aad5dec0 100644
--- a/crypto/asymmetric_keys/Makefile
+++ b/crypto/asymmetric_keys/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for asymmetric cryptographic keys
 #
diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c
index e4b0ed386bc8..39aecad286fe 100644
--- a/crypto/asymmetric_keys/asymmetric_type.c
+++ b/crypto/asymmetric_keys/asymmetric_type.c
@@ -57,6 +57,8 @@ struct key *find_asymmetric_key(struct key *keyring,
 	char *req, *p;
 	int len;
 
+	BUG_ON(!id_0 && !id_1);
+
 	if (id_0) {
 		lookup = id_0->data;
 		len = id_0->len;
@@ -105,7 +107,7 @@ struct key *find_asymmetric_key(struct key *keyring,
 	if (id_0 && id_1) {
 		const struct asymmetric_key_ids *kids = asymmetric_key_ids(key);
 
-		if (!kids->id[0]) {
+		if (!kids->id[1]) {
 			pr_debug("First ID matches, but second is missing\n");
 			goto reject;
 		}
diff --git a/crypto/asymmetric_keys/pkcs7_parser.c b/crypto/asymmetric_keys/pkcs7_parser.c
index af4cd8649117..d140d8bb2c96 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -88,6 +88,9 @@ static int pkcs7_check_authattrs(struct pkcs7_message *msg)
 	bool want = false;
 
 	sinfo = msg->signed_infos;
+	if (!sinfo)
+		goto inconsistent;
+
 	if (sinfo->authattrs) {
 		want = true;
 		msg->have_authattrs = true;
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 3cd6e12cfc46..d916235d6cf5 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -57,29 +57,13 @@ static void public_key_destroy(void *payload0, void *payload3)
 	public_key_signature_free(payload3);
 }
 
-struct public_key_completion {
-	struct completion completion;
-	int err;
-};
-
-static void public_key_verify_done(struct crypto_async_request *req, int err)
-{
-	struct public_key_completion *compl = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	compl->err = err;
-	complete(&compl->completion);
-}
-
 /*
  * Verify a signature using a public key.
  */
 int public_key_verify_signature(const struct public_key *pkey,
 				const struct public_key_signature *sig)
 {
-	struct public_key_completion compl;
+	struct crypto_wait cwait;
 	struct crypto_akcipher *tfm;
 	struct akcipher_request *req;
 	struct scatterlist sig_sg, digest_sg;
@@ -131,20 +115,16 @@ int public_key_verify_signature(const struct public_key *pkey,
 	sg_init_one(&digest_sg, output, outlen);
 	akcipher_request_set_crypt(req, &sig_sg, &digest_sg, sig->s_size,
 				   outlen);
-	init_completion(&compl.completion);
+	crypto_init_wait(&cwait);
 	akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG |
 				      CRYPTO_TFM_REQ_MAY_SLEEP,
-				      public_key_verify_done, &compl);
+				      crypto_req_done, &cwait);
 
 	/* Perform the verification calculation.  This doesn't actually do the
 	 * verification, but rather calculates the hash expected by the
 	 * signature and returns that to us.
 	 */
-	ret = crypto_akcipher_verify(req);
-	if ((ret == -EINPROGRESS) || (ret == -EBUSY)) {
-		wait_for_completion(&compl.completion);
-		ret = compl.err;
-	}
+	ret = crypto_wait_req(crypto_akcipher_verify(req), &cwait);
 	if (ret < 0)
 		goto out_free_output;
 
diff --git a/crypto/async_tx/Kconfig b/crypto/async_tx/Kconfig
index f38a58aef3ec..89bafa2efc30 100644
--- a/crypto/async_tx/Kconfig
+++ b/crypto/async_tx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ASYNC_CORE
 	tristate
 
diff --git a/crypto/async_tx/Makefile b/crypto/async_tx/Makefile
index 462e4abbfe69..056e48245373 100644
--- a/crypto/async_tx/Makefile
+++ b/crypto/async_tx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ASYNC_CORE) += async_tx.o
 obj-$(CONFIG_ASYNC_MEMCPY) += async_memcpy.o
 obj-$(CONFIG_ASYNC_XOR) += async_xor.o
diff --git a/crypto/ccm.c b/crypto/ccm.c
index 1ce37ae0ce56..0a083342ec8c 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -363,7 +363,7 @@ static int crypto_ccm_decrypt(struct aead_request *req)
 	unsigned int cryptlen = req->cryptlen;
 	u8 *authtag = pctx->auth_tag;
 	u8 *odata = pctx->odata;
-	u8 *iv = req->iv;
+	u8 *iv = pctx->idata;
 	int err;
 
 	cryptlen -= authsize;
@@ -379,6 +379,8 @@ static int crypto_ccm_decrypt(struct aead_request *req)
 	if (req->src != req->dst)
 		dst = pctx->dst;
 
+	memcpy(iv, req->iv, 16);
+
 	skcipher_request_set_tfm(skreq, ctx->ctr);
 	skcipher_request_set_callback(skreq, pctx->flags,
 				      crypto_ccm_decrypt_done, req);
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
index 0508c48a45c4..bd43cf5be14c 100644
--- a/crypto/cryptd.c
+++ b/crypto/cryptd.c
@@ -137,16 +137,14 @@ static int cryptd_enqueue_request(struct cryptd_queue *queue,
 	int cpu, err;
 	struct cryptd_cpu_queue *cpu_queue;
 	atomic_t *refcnt;
-	bool may_backlog;
 
 	cpu = get_cpu();
 	cpu_queue = this_cpu_ptr(queue->cpu_queue);
 	err = crypto_enqueue_request(&cpu_queue->queue, request);
 
 	refcnt = crypto_tfm_ctx(request->tfm);
-	may_backlog = request->flags & CRYPTO_TFM_REQ_MAY_BACKLOG;
 
-	if (err == -EBUSY && !may_backlog)
+	if (err == -ENOSPC)
 		goto out_put_cpu;
 
 	queue_work_on(cpu, kcrypto_wq, &cpu_queue->work);
diff --git a/crypto/cts.c b/crypto/cts.c
index 243f591dc409..4773c188e6d9 100644
--- a/crypto/cts.c
+++ b/crypto/cts.c
@@ -136,8 +136,7 @@ static void crypto_cts_encrypt_done(struct crypto_async_request *areq, int err)
 		goto out;
 
 	err = cts_cbc_encrypt(req);
-	if (err == -EINPROGRESS ||
-	    (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+	if (err == -EINPROGRESS || err == -EBUSY)
 		return;
 
 out:
@@ -229,8 +228,7 @@ static void crypto_cts_decrypt_done(struct crypto_async_request *areq, int err)
 		goto out;
 
 	err = cts_cbc_decrypt(req);
-	if (err == -EINPROGRESS ||
-	    (err == -EBUSY && req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+	if (err == -EINPROGRESS || err == -EBUSY)
 		return;
 
 out:
diff --git a/crypto/dh.c b/crypto/dh.c
index b1032a5c1bfa..5659fe7f446d 100644
--- a/crypto/dh.c
+++ b/crypto/dh.c
@@ -21,19 +21,12 @@ struct dh_ctx {
 	MPI xa;
 };
 
-static inline void dh_clear_params(struct dh_ctx *ctx)
+static void dh_clear_ctx(struct dh_ctx *ctx)
 {
 	mpi_free(ctx->p);
 	mpi_free(ctx->g);
-	ctx->p = NULL;
-	ctx->g = NULL;
-}
-
-static void dh_free_ctx(struct dh_ctx *ctx)
-{
-	dh_clear_params(ctx);
 	mpi_free(ctx->xa);
-	ctx->xa = NULL;
+	memset(ctx, 0, sizeof(*ctx));
 }
 
 /*
@@ -60,9 +53,6 @@ static int dh_check_params_length(unsigned int p_len)
 
 static int dh_set_params(struct dh_ctx *ctx, struct dh *params)
 {
-	if (unlikely(!params->p || !params->g))
-		return -EINVAL;
-
 	if (dh_check_params_length(params->p_size << 3))
 		return -EINVAL;
 
@@ -71,10 +61,8 @@ static int dh_set_params(struct dh_ctx *ctx, struct dh *params)
 		return -EINVAL;
 
 	ctx->g = mpi_read_raw_data(params->g, params->g_size);
-	if (!ctx->g) {
-		mpi_free(ctx->p);
+	if (!ctx->g)
 		return -EINVAL;
-	}
 
 	return 0;
 }
@@ -86,21 +74,23 @@ static int dh_set_secret(struct crypto_kpp *tfm, const void *buf,
 	struct dh params;
 
 	/* Free the old MPI key if any */
-	dh_free_ctx(ctx);
+	dh_clear_ctx(ctx);
 
 	if (crypto_dh_decode_key(buf, len, &params) < 0)
-		return -EINVAL;
+		goto err_clear_ctx;
 
 	if (dh_set_params(ctx, &params) < 0)
-		return -EINVAL;
+		goto err_clear_ctx;
 
 	ctx->xa = mpi_read_raw_data(params.key, params.key_size);
-	if (!ctx->xa) {
-		dh_clear_params(ctx);
-		return -EINVAL;
-	}
+	if (!ctx->xa)
+		goto err_clear_ctx;
 
 	return 0;
+
+err_clear_ctx:
+	dh_clear_ctx(ctx);
+	return -EINVAL;
 }
 
 static int dh_compute_value(struct kpp_request *req)
@@ -158,7 +148,7 @@ static void dh_exit_tfm(struct crypto_kpp *tfm)
 {
 	struct dh_ctx *ctx = dh_get_ctx(tfm);
 
-	dh_free_ctx(ctx);
+	dh_clear_ctx(ctx);
 }
 
 static struct kpp_alg dh = {
diff --git a/crypto/dh_helper.c b/crypto/dh_helper.c
index 8ba8a3f82620..24fdb2ecaa85 100644
--- a/crypto/dh_helper.c
+++ b/crypto/dh_helper.c
@@ -28,12 +28,12 @@ static inline const u8 *dh_unpack_data(void *dst, const void *src, size_t size)
 	return src + size;
 }
 
-static inline int dh_data_size(const struct dh *p)
+static inline unsigned int dh_data_size(const struct dh *p)
 {
 	return p->key_size + p->p_size + p->g_size;
 }
 
-int crypto_dh_key_len(const struct dh *p)
+unsigned int crypto_dh_key_len(const struct dh *p)
 {
 	return DH_KPP_SECRET_MIN_SIZE + dh_data_size(p);
 }
@@ -83,6 +83,14 @@ int crypto_dh_decode_key(const char *buf, unsigned int len, struct dh *params)
 	if (secret.len != crypto_dh_key_len(params))
 		return -EINVAL;
 
+	/*
+	 * Don't permit the buffer for 'key' or 'g' to be larger than 'p', since
+	 * some drivers assume otherwise.
+	 */
+	if (params->key_size > params->p_size ||
+	    params->g_size > params->p_size)
+		return -EINVAL;
+
 	/* Don't allocate memory. Set pointers to data within
 	 * the given buffer
 	 */
@@ -90,6 +98,14 @@ int crypto_dh_decode_key(const char *buf, unsigned int len, struct dh *params)
 	params->p = (void *)(ptr + params->key_size);
 	params->g = (void *)(ptr + params->key_size + params->p_size);
 
+	/*
+	 * Don't permit 'p' to be 0.  It's not a prime number, and it's subject
+	 * to corner cases such as 'mod 0' being undefined or
+	 * crypto_kpp_maxsize() returning 0.
+	 */
+	if (memchr_inv(params->p, 0, params->p_size) == NULL)
+		return -EINVAL;
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(crypto_dh_decode_key);
diff --git a/crypto/drbg.c b/crypto/drbg.c
index 633a88e93ab0..4faa2781c964 100644
--- a/crypto/drbg.c
+++ b/crypto/drbg.c
@@ -1133,10 +1133,10 @@ static inline void drbg_dealloc_state(struct drbg_state *drbg)
 {
 	if (!drbg)
 		return;
-	kzfree(drbg->V);
-	drbg->Vbuf = NULL;
-	kzfree(drbg->C);
-	drbg->Cbuf = NULL;
+	kzfree(drbg->Vbuf);
+	drbg->V = NULL;
+	kzfree(drbg->Cbuf);
+	drbg->C = NULL;
 	kzfree(drbg->scratchpadbuf);
 	drbg->scratchpadbuf = NULL;
 	drbg->reseed_ctr = 0;
@@ -1651,16 +1651,6 @@ static int drbg_fini_sym_kernel(struct drbg_state *drbg)
 	return 0;
 }
 
-static void drbg_skcipher_cb(struct crypto_async_request *req, int error)
-{
-	struct drbg_state *drbg = req->data;
-
-	if (error == -EINPROGRESS)
-		return;
-	drbg->ctr_async_err = error;
-	complete(&drbg->ctr_completion);
-}
-
 static int drbg_init_sym_kernel(struct drbg_state *drbg)
 {
 	struct crypto_cipher *tfm;
@@ -1691,7 +1681,7 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
 		return PTR_ERR(sk_tfm);
 	}
 	drbg->ctr_handle = sk_tfm;
-	init_completion(&drbg->ctr_completion);
+	crypto_init_wait(&drbg->ctr_wait);
 
 	req = skcipher_request_alloc(sk_tfm, GFP_KERNEL);
 	if (!req) {
@@ -1700,8 +1690,9 @@ static int drbg_init_sym_kernel(struct drbg_state *drbg)
 		return -ENOMEM;
 	}
 	drbg->ctr_req = req;
-	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					drbg_skcipher_cb, drbg);
+	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG |
+						CRYPTO_TFM_REQ_MAY_SLEEP,
+					crypto_req_done, &drbg->ctr_wait);
 
 	alignmask = crypto_skcipher_alignmask(sk_tfm);
 	drbg->ctr_null_value_buf = kzalloc(DRBG_CTR_NULL_LEN + alignmask,
@@ -1762,21 +1753,12 @@ static int drbg_kcapi_sym_ctr(struct drbg_state *drbg,
 		/* Output buffer may not be valid for SGL, use scratchpad */
 		skcipher_request_set_crypt(drbg->ctr_req, &sg_in, &sg_out,
 					   cryptlen, drbg->V);
-		ret = crypto_skcipher_encrypt(drbg->ctr_req);
-		switch (ret) {
-		case 0:
-			break;
-		case -EINPROGRESS:
-		case -EBUSY:
-			wait_for_completion(&drbg->ctr_completion);
-			if (!drbg->ctr_async_err) {
-				reinit_completion(&drbg->ctr_completion);
-				break;
-			}
-		default:
+		ret = crypto_wait_req(crypto_skcipher_encrypt(drbg->ctr_req),
+					&drbg->ctr_wait);
+		if (ret)
 			goto out;
-		}
-		init_completion(&drbg->ctr_completion);
+
+		crypto_init_wait(&drbg->ctr_wait);
 
 		memcpy(outbuf, drbg->outscratchpad, cryptlen);
 
diff --git a/crypto/ecc_curve_defs.h b/crypto/ecc_curve_defs.h
index 03ae5f714028..b80f45da829c 100644
--- a/crypto/ecc_curve_defs.h
+++ b/crypto/ecc_curve_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYTO_ECC_CURVE_DEFS_H
 #define _CRYTO_ECC_CURVE_DEFS_H
 
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index 4271fc77d261..3aca0933ec44 100644
--- a/crypto/ecdh.c
+++ b/crypto/ecdh.c
@@ -131,17 +131,11 @@ static unsigned int ecdh_max_size(struct crypto_kpp *tfm)
 	return ctx->ndigits << (ECC_DIGITS_TO_BYTES_SHIFT + 1);
 }
 
-static void no_exit_tfm(struct crypto_kpp *tfm)
-{
-	return;
-}
-
 static struct kpp_alg ecdh = {
 	.set_secret = ecdh_set_secret,
 	.generate_public_key = ecdh_compute_value,
 	.compute_shared_secret = ecdh_compute_value,
 	.max_size = ecdh_max_size,
-	.exit = no_exit_tfm,
 	.base = {
 		.cra_name = "ecdh",
 		.cra_driver_name = "ecdh-generic",
diff --git a/crypto/ecdh_helper.c b/crypto/ecdh_helper.c
index f05bea5fd257..d3af8e8b0b5e 100644
--- a/crypto/ecdh_helper.c
+++ b/crypto/ecdh_helper.c
@@ -28,7 +28,7 @@ static inline const u8 *ecdh_unpack_data(void *dst, const void *src, size_t sz)
 	return src + sz;
 }
 
-int crypto_ecdh_key_len(const struct ecdh *params)
+unsigned int crypto_ecdh_key_len(const struct ecdh *params)
 {
 	return ECDH_KPP_SECRET_MIN_SIZE + params->key_size;
 }
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 3841b5eafa7e..8589681fb9f6 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -14,9 +14,9 @@
 #include <crypto/internal/hash.h>
 #include <crypto/null.h>
 #include <crypto/scatterwalk.h>
+#include <crypto/gcm.h>
 #include <crypto/hash.h>
 #include "internal.h"
-#include <linux/completion.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -78,11 +78,6 @@ struct crypto_gcm_req_priv_ctx {
 	} u;
 };
 
-struct crypto_gcm_setkey_result {
-	int err;
-	struct completion completion;
-};
-
 static struct {
 	u8 buf[16];
 	struct scatterlist sg;
@@ -98,17 +93,6 @@ static inline struct crypto_gcm_req_priv_ctx *crypto_gcm_reqctx(
 	return (void *)PTR_ALIGN((u8 *)aead_request_ctx(req), align + 1);
 }
 
-static void crypto_gcm_setkey_done(struct crypto_async_request *req, int err)
-{
-	struct crypto_gcm_setkey_result *result = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	result->err = err;
-	complete(&result->completion);
-}
-
 static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 			     unsigned int keylen)
 {
@@ -119,7 +103,7 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 		be128 hash;
 		u8 iv[16];
 
-		struct crypto_gcm_setkey_result result;
+		struct crypto_wait wait;
 
 		struct scatterlist sg[1];
 		struct skcipher_request req;
@@ -140,21 +124,18 @@ static int crypto_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 	if (!data)
 		return -ENOMEM;
 
-	init_completion(&data->result.completion);
+	crypto_init_wait(&data->wait);
 	sg_init_one(data->sg, &data->hash, sizeof(data->hash));
 	skcipher_request_set_tfm(&data->req, ctr);
 	skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
 						  CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      crypto_gcm_setkey_done,
-				      &data->result);
+				      crypto_req_done,
+				      &data->wait);
 	skcipher_request_set_crypt(&data->req, data->sg, data->sg,
 				   sizeof(data->hash), data->iv);
 
-	err = crypto_skcipher_encrypt(&data->req);
-	if (err == -EINPROGRESS || err == -EBUSY) {
-		wait_for_completion(&data->result.completion);
-		err = data->result.err;
-	}
+	err = crypto_wait_req(crypto_skcipher_encrypt(&data->req),
+							&data->wait);
 
 	if (err)
 		goto out;
@@ -197,8 +178,8 @@ static void crypto_gcm_init_common(struct aead_request *req)
 	struct scatterlist *sg;
 
 	memset(pctx->auth_tag, 0, sizeof(pctx->auth_tag));
-	memcpy(pctx->iv, req->iv, 12);
-	memcpy(pctx->iv + 12, &counter, 4);
+	memcpy(pctx->iv, req->iv, GCM_AES_IV_SIZE);
+	memcpy(pctx->iv + GCM_AES_IV_SIZE, &counter, 4);
 
 	sg_init_table(pctx->src, 3);
 	sg_set_buf(pctx->src, pctx->auth_tag, sizeof(pctx->auth_tag));
@@ -695,7 +676,7 @@ static int crypto_gcm_create_common(struct crypto_template *tmpl,
 	inst->alg.base.cra_alignmask = ghash->base.cra_alignmask |
 				       ctr->base.cra_alignmask;
 	inst->alg.base.cra_ctxsize = sizeof(struct crypto_gcm_ctx);
-	inst->alg.ivsize = 12;
+	inst->alg.ivsize = GCM_AES_IV_SIZE;
 	inst->alg.chunksize = crypto_skcipher_alg_chunksize(ctr);
 	inst->alg.maxauthsize = 16;
 	inst->alg.init = crypto_gcm_init_tfm;
@@ -832,20 +813,20 @@ static struct aead_request *crypto_rfc4106_crypt(struct aead_request *req)
 	u8 *iv = PTR_ALIGN((u8 *)(subreq + 1) + crypto_aead_reqsize(child),
 			   crypto_aead_alignmask(child) + 1);
 
-	scatterwalk_map_and_copy(iv + 12, req->src, 0, req->assoclen - 8, 0);
+	scatterwalk_map_and_copy(iv + GCM_AES_IV_SIZE, req->src, 0, req->assoclen - 8, 0);
 
 	memcpy(iv, ctx->nonce, 4);
 	memcpy(iv + 4, req->iv, 8);
 
 	sg_init_table(rctx->src, 3);
-	sg_set_buf(rctx->src, iv + 12, req->assoclen - 8);
+	sg_set_buf(rctx->src, iv + GCM_AES_IV_SIZE, req->assoclen - 8);
 	sg = scatterwalk_ffwd(rctx->src + 1, req->src, req->assoclen);
 	if (sg != rctx->src + 1)
 		sg_chain(rctx->src, 2, sg);
 
 	if (req->src != req->dst) {
 		sg_init_table(rctx->dst, 3);
-		sg_set_buf(rctx->dst, iv + 12, req->assoclen - 8);
+		sg_set_buf(rctx->dst, iv + GCM_AES_IV_SIZE, req->assoclen - 8);
 		sg = scatterwalk_ffwd(rctx->dst + 1, req->dst, req->assoclen);
 		if (sg != rctx->dst + 1)
 			sg_chain(rctx->dst, 2, sg);
@@ -957,7 +938,7 @@ static int crypto_rfc4106_create(struct crypto_template *tmpl,
 	err = -EINVAL;
 
 	/* Underlying IV size must be 12. */
-	if (crypto_aead_alg_ivsize(alg) != 12)
+	if (crypto_aead_alg_ivsize(alg) != GCM_AES_IV_SIZE)
 		goto out_drop_alg;
 
 	/* Not a stream cipher? */
@@ -980,7 +961,7 @@ static int crypto_rfc4106_create(struct crypto_template *tmpl,
 
 	inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4106_ctx);
 
-	inst->alg.ivsize = 8;
+	inst->alg.ivsize = GCM_RFC4106_IV_SIZE;
 	inst->alg.chunksize = crypto_aead_alg_chunksize(alg);
 	inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
 
@@ -1134,7 +1115,7 @@ static int crypto_rfc4543_init_tfm(struct crypto_aead *tfm)
 		tfm,
 		sizeof(struct crypto_rfc4543_req_ctx) +
 		ALIGN(crypto_aead_reqsize(aead), crypto_tfm_ctx_alignment()) +
-		align + 12);
+		align + GCM_AES_IV_SIZE);
 
 	return 0;
 
@@ -1199,7 +1180,7 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl,
 	err = -EINVAL;
 
 	/* Underlying IV size must be 12. */
-	if (crypto_aead_alg_ivsize(alg) != 12)
+	if (crypto_aead_alg_ivsize(alg) != GCM_AES_IV_SIZE)
 		goto out_drop_alg;
 
 	/* Not a stream cipher? */
@@ -1222,7 +1203,7 @@ static int crypto_rfc4543_create(struct crypto_template *tmpl,
 
 	inst->alg.base.cra_ctxsize = sizeof(struct crypto_rfc4543_ctx);
 
-	inst->alg.ivsize = 8;
+	inst->alg.ivsize = GCM_RFC4543_IV_SIZE;
 	inst->alg.chunksize = crypto_aead_alg_chunksize(alg);
 	inst->alg.maxauthsize = crypto_aead_alg_maxauthsize(alg);
 
diff --git a/crypto/gf128mul.c b/crypto/gf128mul.c
index dc012129c063..24e601954c7a 100644
--- a/crypto/gf128mul.c
+++ b/crypto/gf128mul.c
@@ -156,6 +156,19 @@ static void gf128mul_x8_bbe(be128 *x)
 	x->b = cpu_to_be64((b << 8) ^ _tt);
 }
 
+void gf128mul_x8_ble(le128 *r, const le128 *x)
+{
+	u64 a = le64_to_cpu(x->a);
+	u64 b = le64_to_cpu(x->b);
+
+	/* equivalent to gf128mul_table_be[b >> 63] (see crypto/gf128mul.c): */
+	u64 _tt = gf128mul_table_be[a >> 56];
+
+	r->a = cpu_to_le64((a << 8) | (b >> 56));
+	r->b = cpu_to_le64((b << 8) ^ _tt);
+}
+EXPORT_SYMBOL(gf128mul_x8_ble);
+
 void gf128mul_lle(be128 *r, const be128 *b)
 {
 	be128 p[8];
diff --git a/crypto/keywrap.c b/crypto/keywrap.c
index 72014f963ba7..744e35134c45 100644
--- a/crypto/keywrap.c
+++ b/crypto/keywrap.c
@@ -93,18 +93,10 @@ struct crypto_kw_ctx {
 
 struct crypto_kw_block {
 #define SEMIBSIZE 8
-	u8 A[SEMIBSIZE];
-	u8 R[SEMIBSIZE];
+	__be64 A;
+	__be64 R;
 };
 
-/* convert 64 bit integer into its string representation */
-static inline void crypto_kw_cpu_to_be64(u64 val, u8 *buf)
-{
-	__be64 *a = (__be64 *)buf;
-
-	*a = cpu_to_be64(val);
-}
-
 /*
  * Fast forward the SGL to the "end" length minus SEMIBSIZE.
  * The start in the SGL defined by the fast-forward is returned with
@@ -139,17 +131,10 @@ static int crypto_kw_decrypt(struct blkcipher_desc *desc,
 	struct crypto_blkcipher *tfm = desc->tfm;
 	struct crypto_kw_ctx *ctx = crypto_blkcipher_ctx(tfm);
 	struct crypto_cipher *child = ctx->child;
-
-	unsigned long alignmask = max_t(unsigned long, SEMIBSIZE,
-					crypto_cipher_alignmask(child));
-	unsigned int i;
-
-	u8 blockbuf[sizeof(struct crypto_kw_block) + alignmask];
-	struct crypto_kw_block *block = (struct crypto_kw_block *)
-					PTR_ALIGN(blockbuf + 0, alignmask + 1);
-
-	u64 t = 6 * ((nbytes) >> 3);
+	struct crypto_kw_block block;
 	struct scatterlist *lsrc, *ldst;
+	u64 t = 6 * ((nbytes) >> 3);
+	unsigned int i;
 	int ret = 0;
 
 	/*
@@ -160,7 +145,7 @@ static int crypto_kw_decrypt(struct blkcipher_desc *desc,
 		return -EINVAL;
 
 	/* Place the IV into block A */
-	memcpy(block->A, desc->info, SEMIBSIZE);
+	memcpy(&block.A, desc->info, SEMIBSIZE);
 
 	/*
 	 * src scatterlist is read-only. dst scatterlist is r/w. During the
@@ -171,32 +156,27 @@ static int crypto_kw_decrypt(struct blkcipher_desc *desc,
 	ldst = dst;
 
 	for (i = 0; i < 6; i++) {
-		u8 tbe_buffer[SEMIBSIZE + alignmask];
-		/* alignment for the crypto_xor and the _to_be64 operation */
-		u8 *tbe = PTR_ALIGN(tbe_buffer + 0, alignmask + 1);
-		unsigned int tmp_nbytes = nbytes;
 		struct scatter_walk src_walk, dst_walk;
+		unsigned int tmp_nbytes = nbytes;
 
 		while (tmp_nbytes) {
 			/* move pointer by tmp_nbytes in the SGL */
 			crypto_kw_scatterlist_ff(&src_walk, lsrc, tmp_nbytes);
 			/* get the source block */
-			scatterwalk_copychunks(block->R, &src_walk, SEMIBSIZE,
+			scatterwalk_copychunks(&block.R, &src_walk, SEMIBSIZE,
 					       false);
 
-			/* perform KW operation: get counter as byte string */
-			crypto_kw_cpu_to_be64(t, tbe);
 			/* perform KW operation: modify IV with counter */
-			crypto_xor(block->A, tbe, SEMIBSIZE);
+			block.A ^= cpu_to_be64(t);
 			t--;
 			/* perform KW operation: decrypt block */
-			crypto_cipher_decrypt_one(child, (u8*)block,
-						  (u8*)block);
+			crypto_cipher_decrypt_one(child, (u8*)&block,
+						  (u8*)&block);
 
 			/* move pointer by tmp_nbytes in the SGL */
 			crypto_kw_scatterlist_ff(&dst_walk, ldst, tmp_nbytes);
 			/* Copy block->R into place */
-			scatterwalk_copychunks(block->R, &dst_walk, SEMIBSIZE,
+			scatterwalk_copychunks(&block.R, &dst_walk, SEMIBSIZE,
 					       true);
 
 			tmp_nbytes -= SEMIBSIZE;
@@ -208,11 +188,10 @@ static int crypto_kw_decrypt(struct blkcipher_desc *desc,
 	}
 
 	/* Perform authentication check */
-	if (crypto_memneq("\xA6\xA6\xA6\xA6\xA6\xA6\xA6\xA6", block->A,
-			  SEMIBSIZE))
+	if (block.A != cpu_to_be64(0xa6a6a6a6a6a6a6a6))
 		ret = -EBADMSG;
 
-	memzero_explicit(block, sizeof(struct crypto_kw_block));
+	memzero_explicit(&block, sizeof(struct crypto_kw_block));
 
 	return ret;
 }
@@ -224,17 +203,10 @@ static int crypto_kw_encrypt(struct blkcipher_desc *desc,
 	struct crypto_blkcipher *tfm = desc->tfm;
 	struct crypto_kw_ctx *ctx = crypto_blkcipher_ctx(tfm);
 	struct crypto_cipher *child = ctx->child;
-
-	unsigned long alignmask = max_t(unsigned long, SEMIBSIZE,
-					crypto_cipher_alignmask(child));
-	unsigned int i;
-
-	u8 blockbuf[sizeof(struct crypto_kw_block) + alignmask];
-	struct crypto_kw_block *block = (struct crypto_kw_block *)
-					PTR_ALIGN(blockbuf + 0, alignmask + 1);
-
-	u64 t = 1;
+	struct crypto_kw_block block;
 	struct scatterlist *lsrc, *ldst;
+	u64 t = 1;
+	unsigned int i;
 
 	/*
 	 * Require at least 2 semiblocks (note, the 3rd semiblock that is
@@ -249,7 +221,7 @@ static int crypto_kw_encrypt(struct blkcipher_desc *desc,
 	 * Place the predefined IV into block A -- for encrypt, the caller
 	 * does not need to provide an IV, but he needs to fetch the final IV.
 	 */
-	memcpy(block->A, "\xA6\xA6\xA6\xA6\xA6\xA6\xA6\xA6", SEMIBSIZE);
+	block.A = cpu_to_be64(0xa6a6a6a6a6a6a6a6);
 
 	/*
 	 * src scatterlist is read-only. dst scatterlist is r/w. During the
@@ -260,30 +232,26 @@ static int crypto_kw_encrypt(struct blkcipher_desc *desc,
 	ldst = dst;
 
 	for (i = 0; i < 6; i++) {
-		u8 tbe_buffer[SEMIBSIZE + alignmask];
-		u8 *tbe = PTR_ALIGN(tbe_buffer + 0, alignmask + 1);
-		unsigned int tmp_nbytes = nbytes;
 		struct scatter_walk src_walk, dst_walk;
+		unsigned int tmp_nbytes = nbytes;
 
 		scatterwalk_start(&src_walk, lsrc);
 		scatterwalk_start(&dst_walk, ldst);
 
 		while (tmp_nbytes) {
 			/* get the source block */
-			scatterwalk_copychunks(block->R, &src_walk, SEMIBSIZE,
+			scatterwalk_copychunks(&block.R, &src_walk, SEMIBSIZE,
 					       false);
 
 			/* perform KW operation: encrypt block */
-			crypto_cipher_encrypt_one(child, (u8 *)block,
-						  (u8 *)block);
-			/* perform KW operation: get counter as byte string */
-			crypto_kw_cpu_to_be64(t, tbe);
+			crypto_cipher_encrypt_one(child, (u8 *)&block,
+						  (u8 *)&block);
 			/* perform KW operation: modify IV with counter */
-			crypto_xor(block->A, tbe, SEMIBSIZE);
+			block.A ^= cpu_to_be64(t);
 			t++;
 
 			/* Copy block->R into place */
-			scatterwalk_copychunks(block->R, &dst_walk, SEMIBSIZE,
+			scatterwalk_copychunks(&block.R, &dst_walk, SEMIBSIZE,
 					       true);
 
 			tmp_nbytes -= SEMIBSIZE;
@@ -295,9 +263,9 @@ static int crypto_kw_encrypt(struct blkcipher_desc *desc,
 	}
 
 	/* establish the IV for the caller to pick up */
-	memcpy(desc->info, block->A, SEMIBSIZE);
+	memcpy(desc->info, &block.A, SEMIBSIZE);
 
-	memzero_explicit(block, sizeof(struct crypto_kw_block));
+	memzero_explicit(&block, sizeof(struct crypto_kw_block));
 
 	return 0;
 }
diff --git a/crypto/lrw.c b/crypto/lrw.c
index a8bfae4451bf..cbbd7c50ad19 100644
--- a/crypto/lrw.c
+++ b/crypto/lrw.c
@@ -328,9 +328,7 @@ static int do_encrypt(struct skcipher_request *req, int err)
 		      crypto_skcipher_encrypt(subreq) ?:
 		      post_crypt(req);
 
-		if (err == -EINPROGRESS ||
-		    (err == -EBUSY &&
-		     req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+		if (err == -EINPROGRESS || err == -EBUSY)
 			return err;
 	}
 
@@ -380,9 +378,7 @@ static int do_decrypt(struct skcipher_request *req, int err)
 		      crypto_skcipher_decrypt(subreq) ?:
 		      post_crypt(req);
 
-		if (err == -EINPROGRESS ||
-		    (err == -EBUSY &&
-		     req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+		if (err == -EINPROGRESS || err == -EBUSY)
 			return err;
 	}
 
@@ -610,9 +606,12 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
 		ecb_name[len - 1] = 0;
 
 		if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
-			     "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME)
-			return -ENAMETOOLONG;
-	}
+			     "lrw(%s)", ecb_name) >= CRYPTO_MAX_ALG_NAME) {
+			err = -ENAMETOOLONG;
+			goto err_drop_spawn;
+		}
+	} else
+		goto err_drop_spawn;
 
 	inst->alg.base.cra_flags = alg->base.cra_flags & CRYPTO_ALG_ASYNC;
 	inst->alg.base.cra_priority = alg->base.cra_priority;
diff --git a/crypto/ripemd.h b/crypto/ripemd.h
index c57a2d4ce8d9..93edbf52197d 100644
--- a/crypto/ripemd.h
+++ b/crypto/ripemd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for RIPEMD algorithms
  */
diff --git a/crypto/rmd128.c b/crypto/rmd128.c
index 049486ede938..40e053b97b69 100644
--- a/crypto/rmd128.c
+++ b/crypto/rmd128.c
@@ -213,8 +213,6 @@ static void rmd128_transform(u32 *state, const __le32 *in)
 	state[2] = state[3] + aa + bbb;
 	state[3] = state[0] + bb + ccc;
 	state[0] = ddd;
-
-	return;
 }
 
 static int rmd128_init(struct shash_desc *desc)
diff --git a/crypto/rmd160.c b/crypto/rmd160.c
index de585e51d455..5f3e6ea35268 100644
--- a/crypto/rmd160.c
+++ b/crypto/rmd160.c
@@ -256,8 +256,6 @@ static void rmd160_transform(u32 *state, const __le32 *in)
 	state[3] = state[4] + aa + bbb;
 	state[4] = state[0] + bb + ccc;
 	state[0] = ddd;
-
-	return;
 }
 
 static int rmd160_init(struct shash_desc *desc)
diff --git a/crypto/rmd256.c b/crypto/rmd256.c
index 4ec02a754e09..f50c025cc962 100644
--- a/crypto/rmd256.c
+++ b/crypto/rmd256.c
@@ -228,8 +228,6 @@ static void rmd256_transform(u32 *state, const __le32 *in)
 	state[5] += bbb;
 	state[6] += ccc;
 	state[7] += ddd;
-
-	return;
 }
 
 static int rmd256_init(struct shash_desc *desc)
diff --git a/crypto/rmd320.c b/crypto/rmd320.c
index 770f2cb369f8..e1315e4869e8 100644
--- a/crypto/rmd320.c
+++ b/crypto/rmd320.c
@@ -275,8 +275,6 @@ static void rmd320_transform(u32 *state, const __le32 *in)
 	state[7] += ccc;
 	state[8] += ddd;
 	state[9] += eee;
-
-	return;
 }
 
 static int rmd320_init(struct shash_desc *desc)
diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c
index 407c64bdcdd9..2908f93c3e55 100644
--- a/crypto/rsa-pkcs1pad.c
+++ b/crypto/rsa-pkcs1pad.c
@@ -279,9 +279,7 @@ static int pkcs1pad_encrypt(struct akcipher_request *req)
 				   req->dst, ctx->key_size - 1, req->dst_len);
 
 	err = crypto_akcipher_encrypt(&req_ctx->child_req);
-	if (err != -EINPROGRESS &&
-			(err != -EBUSY ||
-			 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err != -EINPROGRESS && err != -EBUSY)
 		return pkcs1pad_encrypt_sign_complete(req, err);
 
 	return err;
@@ -383,9 +381,7 @@ static int pkcs1pad_decrypt(struct akcipher_request *req)
 				   ctx->key_size);
 
 	err = crypto_akcipher_decrypt(&req_ctx->child_req);
-	if (err != -EINPROGRESS &&
-			(err != -EBUSY ||
-			 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err != -EINPROGRESS && err != -EBUSY)
 		return pkcs1pad_decrypt_complete(req, err);
 
 	return err;
@@ -440,9 +436,7 @@ static int pkcs1pad_sign(struct akcipher_request *req)
 				   req->dst, ctx->key_size - 1, req->dst_len);
 
 	err = crypto_akcipher_sign(&req_ctx->child_req);
-	if (err != -EINPROGRESS &&
-			(err != -EBUSY ||
-			 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err != -EINPROGRESS && err != -EBUSY)
 		return pkcs1pad_encrypt_sign_complete(req, err);
 
 	return err;
@@ -561,9 +555,7 @@ static int pkcs1pad_verify(struct akcipher_request *req)
 				   ctx->key_size);
 
 	err = crypto_akcipher_verify(&req_ctx->child_req);
-	if (err != -EINPROGRESS &&
-			(err != -EBUSY ||
-			 !(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	if (err != -EINPROGRESS && err != -EBUSY)
 		return pkcs1pad_verify_complete(req, err);
 
 	return err;
diff --git a/crypto/shash.c b/crypto/shash.c
index 5e31c8d776df..325a14da5827 100644
--- a/crypto/shash.c
+++ b/crypto/shash.c
@@ -41,7 +41,7 @@ static int shash_setkey_unaligned(struct crypto_shash *tfm, const u8 *key,
 	int err;
 
 	absize = keylen + (alignmask & ~(crypto_tfm_ctx_alignment() - 1));
-	buffer = kmalloc(absize, GFP_KERNEL);
+	buffer = kmalloc(absize, GFP_ATOMIC);
 	if (!buffer)
 		return -ENOMEM;
 
@@ -275,12 +275,14 @@ static int shash_async_finup(struct ahash_request *req)
 
 int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc)
 {
-	struct scatterlist *sg = req->src;
-	unsigned int offset = sg->offset;
 	unsigned int nbytes = req->nbytes;
+	struct scatterlist *sg;
+	unsigned int offset;
 	int err;
 
-	if (nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset)) {
+	if (nbytes &&
+	    (sg = req->src, offset = sg->offset,
+	     nbytes < min(sg->length, ((unsigned int)(PAGE_SIZE)) - offset))) {
 		void *data;
 
 		data = kmap_atomic(sg_page(sg));
diff --git a/crypto/skcipher.c b/crypto/skcipher.c
index 4faa0fd53b0c..d5692e35fab1 100644
--- a/crypto/skcipher.c
+++ b/crypto/skcipher.c
@@ -426,14 +426,9 @@ static int skcipher_copy_iv(struct skcipher_walk *walk)
 
 static int skcipher_walk_first(struct skcipher_walk *walk)
 {
-	walk->nbytes = 0;
-
 	if (WARN_ON_ONCE(in_irq()))
 		return -EDEADLK;
 
-	if (unlikely(!walk->total))
-		return 0;
-
 	walk->buffer = NULL;
 	if (unlikely(((unsigned long)walk->iv & walk->alignmask))) {
 		int err = skcipher_copy_iv(walk);
@@ -452,10 +447,15 @@ static int skcipher_walk_skcipher(struct skcipher_walk *walk,
 {
 	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
 
+	walk->total = req->cryptlen;
+	walk->nbytes = 0;
+
+	if (unlikely(!walk->total))
+		return 0;
+
 	scatterwalk_start(&walk->in, req->src);
 	scatterwalk_start(&walk->out, req->dst);
 
-	walk->total = req->cryptlen;
 	walk->iv = req->iv;
 	walk->oiv = req->iv;
 
@@ -509,6 +509,11 @@ static int skcipher_walk_aead_common(struct skcipher_walk *walk,
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	int err;
 
+	walk->nbytes = 0;
+
+	if (unlikely(!walk->total))
+		return 0;
+
 	walk->flags &= ~SKCIPHER_WALK_PHYS;
 
 	scatterwalk_start(&walk->in, req->src);
diff --git a/crypto/sm3_generic.c b/crypto/sm3_generic.c
new file mode 100644
index 000000000000..9e823d99f095
--- /dev/null
+++ b/crypto/sm3_generic.c
@@ -0,0 +1,210 @@
+/*
+ * SM3 secure hash, as specified by OSCCA GM/T 0004-2012 SM3 and
+ * described at https://tools.ietf.org/html/draft-shen-sm3-hash-01
+ *
+ * Copyright (C) 2017 ARM Limited or its affiliates.
+ * Written by Gilad Ben-Yossef <gilad@benyossef.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <crypto/internal/hash.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <crypto/sm3.h>
+#include <crypto/sm3_base.h>
+#include <linux/bitops.h>
+#include <asm/byteorder.h>
+#include <asm/unaligned.h>
+
+const u8 sm3_zero_message_hash[SM3_DIGEST_SIZE] = {
+	0x1A, 0xB2, 0x1D, 0x83, 0x55, 0xCF, 0xA1, 0x7F,
+	0x8e, 0x61, 0x19, 0x48, 0x31, 0xE8, 0x1A, 0x8F,
+	0x22, 0xBE, 0xC8, 0xC7, 0x28, 0xFE, 0xFB, 0x74,
+	0x7E, 0xD0, 0x35, 0xEB, 0x50, 0x82, 0xAA, 0x2B
+};
+EXPORT_SYMBOL_GPL(sm3_zero_message_hash);
+
+static inline u32 p0(u32 x)
+{
+	return x ^ rol32(x, 9) ^ rol32(x, 17);
+}
+
+static inline u32 p1(u32 x)
+{
+	return x ^ rol32(x, 15) ^ rol32(x, 23);
+}
+
+static inline u32 ff(unsigned int n, u32 a, u32 b, u32 c)
+{
+	return (n < 16) ? (a ^ b ^ c) : ((a & b) | (a & c) | (b & c));
+}
+
+static inline u32 gg(unsigned int n, u32 e, u32 f, u32 g)
+{
+	return (n < 16) ? (e ^ f ^ g) : ((e & f) | ((~e) & g));
+}
+
+static inline u32 t(unsigned int n)
+{
+	return (n < 16) ? SM3_T1 : SM3_T2;
+}
+
+static void sm3_expand(u32 *t, u32 *w, u32 *wt)
+{
+	int i;
+	unsigned int tmp;
+
+	/* load the input */
+	for (i = 0; i <= 15; i++)
+		w[i] = get_unaligned_be32((__u32 *)t + i);
+
+	for (i = 16; i <= 67; i++) {
+		tmp = w[i - 16] ^ w[i - 9] ^ rol32(w[i - 3], 15);
+		w[i] = p1(tmp) ^ (rol32(w[i - 13], 7)) ^ w[i - 6];
+	}
+
+	for (i = 0; i <= 63; i++)
+		wt[i] = w[i] ^ w[i + 4];
+}
+
+static void sm3_compress(u32 *w, u32 *wt, u32 *m)
+{
+	u32 ss1;
+	u32 ss2;
+	u32 tt1;
+	u32 tt2;
+	u32 a, b, c, d, e, f, g, h;
+	int i;
+
+	a = m[0];
+	b = m[1];
+	c = m[2];
+	d = m[3];
+	e = m[4];
+	f = m[5];
+	g = m[6];
+	h = m[7];
+
+	for (i = 0; i <= 63; i++) {
+
+		ss1 = rol32((rol32(a, 12) + e + rol32(t(i), i)), 7);
+
+		ss2 = ss1 ^ rol32(a, 12);
+
+		tt1 = ff(i, a, b, c) + d + ss2 + *wt;
+		wt++;
+
+		tt2 = gg(i, e, f, g) + h + ss1 + *w;
+		w++;
+
+		d = c;
+		c = rol32(b, 9);
+		b = a;
+		a = tt1;
+		h = g;
+		g = rol32(f, 19);
+		f = e;
+		e = p0(tt2);
+	}
+
+	m[0] = a ^ m[0];
+	m[1] = b ^ m[1];
+	m[2] = c ^ m[2];
+	m[3] = d ^ m[3];
+	m[4] = e ^ m[4];
+	m[5] = f ^ m[5];
+	m[6] = g ^ m[6];
+	m[7] = h ^ m[7];
+
+	a = b = c = d = e = f = g = h = ss1 = ss2 = tt1 = tt2 = 0;
+}
+
+static void sm3_transform(struct sm3_state *sst, u8 const *src)
+{
+	unsigned int w[68];
+	unsigned int wt[64];
+
+	sm3_expand((u32 *)src, w, wt);
+	sm3_compress(w, wt, sst->state);
+
+	memzero_explicit(w, sizeof(w));
+	memzero_explicit(wt, sizeof(wt));
+}
+
+static void sm3_generic_block_fn(struct sm3_state *sst, u8 const *src,
+				    int blocks)
+{
+	while (blocks--) {
+		sm3_transform(sst, src);
+		src += SM3_BLOCK_SIZE;
+	}
+}
+
+int crypto_sm3_update(struct shash_desc *desc, const u8 *data,
+			  unsigned int len)
+{
+	return sm3_base_do_update(desc, data, len, sm3_generic_block_fn);
+}
+EXPORT_SYMBOL(crypto_sm3_update);
+
+static int sm3_final(struct shash_desc *desc, u8 *out)
+{
+	sm3_base_do_finalize(desc, sm3_generic_block_fn);
+	return sm3_base_finish(desc, out);
+}
+
+int crypto_sm3_finup(struct shash_desc *desc, const u8 *data,
+			unsigned int len, u8 *hash)
+{
+	sm3_base_do_update(desc, data, len, sm3_generic_block_fn);
+	return sm3_final(desc, hash);
+}
+EXPORT_SYMBOL(crypto_sm3_finup);
+
+static struct shash_alg sm3_alg = {
+	.digestsize	=	SM3_DIGEST_SIZE,
+	.init		=	sm3_base_init,
+	.update		=	crypto_sm3_update,
+	.final		=	sm3_final,
+	.finup		=	crypto_sm3_finup,
+	.descsize	=	sizeof(struct sm3_state),
+	.base		=	{
+		.cra_name	 =	"sm3",
+		.cra_driver_name =	"sm3-generic",
+		.cra_flags	 =	CRYPTO_ALG_TYPE_SHASH,
+		.cra_blocksize	 =	SM3_BLOCK_SIZE,
+		.cra_module	 =	THIS_MODULE,
+	}
+};
+
+static int __init sm3_generic_mod_init(void)
+{
+	return crypto_register_shash(&sm3_alg);
+}
+
+static void __exit sm3_generic_mod_fini(void)
+{
+	crypto_unregister_shash(&sm3_alg);
+}
+
+module_init(sm3_generic_mod_init);
+module_exit(sm3_generic_mod_fini);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("SM3 Secure Hash Algorithm");
+
+MODULE_ALIAS_CRYPTO("sm3");
+MODULE_ALIAS_CRYPTO("sm3-generic");
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 0022a18d36ee..9267cbdb14d2 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -70,7 +70,7 @@ static int mode;
 static char *tvmem[TVMEMSIZE];
 
 static char *check[] = {
-	"des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256",
+	"des", "md5", "des3_ede", "rot13", "sha1", "sha224", "sha256", "sm3",
 	"blowfish", "twofish", "serpent", "sha384", "sha512", "md4", "aes",
 	"cast6", "arc4", "michael_mic", "deflate", "crc32c", "tea", "xtea",
 	"khazad", "wp512", "wp384", "wp256", "tnepres", "xeta",  "fcrypt",
@@ -79,34 +79,11 @@ static char *check[] = {
 	NULL
 };
 
-struct tcrypt_result {
-	struct completion completion;
-	int err;
-};
-
-static void tcrypt_complete(struct crypto_async_request *req, int err)
-{
-	struct tcrypt_result *res = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	res->err = err;
-	complete(&res->completion);
-}
-
 static inline int do_one_aead_op(struct aead_request *req, int ret)
 {
-	if (ret == -EINPROGRESS || ret == -EBUSY) {
-		struct tcrypt_result *tr = req->base.data;
+	struct crypto_wait *wait = req->base.data;
 
-		ret = wait_for_completion_interruptible(&tr->completion);
-		if (!ret)
-			ret = tr->err;
-		reinit_completion(&tr->completion);
-	}
-
-	return ret;
+	return crypto_wait_req(ret, wait);
 }
 
 static int test_aead_jiffies(struct aead_request *req, int enc,
@@ -248,7 +225,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 	char *axbuf[XBUFSIZE];
 	unsigned int *b_size;
 	unsigned int iv_len;
-	struct tcrypt_result result;
+	struct crypto_wait wait;
 
 	iv = kzalloc(MAX_IVLEN, GFP_KERNEL);
 	if (!iv)
@@ -284,7 +261,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 		goto out_notfm;
 	}
 
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 	printk(KERN_INFO "\ntesting speed of %s (%s) %s\n", algo,
 			get_driver_name(crypto_aead, tfm), e);
 
@@ -296,7 +273,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 	}
 
 	aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				  tcrypt_complete, &result);
+				  crypto_req_done, &wait);
 
 	i = 0;
 	do {
@@ -340,7 +317,7 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 			}
 
 			sg_init_aead(sg, xbuf,
-				    *b_size + (enc ? authsize : 0));
+				    *b_size + (enc ? 0 : authsize));
 
 			sg_init_aead(sgout, xoutbuf,
 				    *b_size + (enc ? authsize : 0));
@@ -348,7 +325,9 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs,
 			sg_set_buf(&sg[0], assoc, aad_size);
 			sg_set_buf(&sgout[0], assoc, aad_size);
 
-			aead_request_set_crypt(req, sg, sgout, *b_size, iv);
+			aead_request_set_crypt(req, sg, sgout,
+					       *b_size + (enc ? 0 : authsize),
+					       iv);
 			aead_request_set_ad(req, aad_size);
 
 			if (secs)
@@ -381,7 +360,6 @@ out_noaxbuf:
 	testmgr_free_buf(xbuf);
 out_noxbuf:
 	kfree(iv);
-	return;
 }
 
 static void test_hash_sg_init(struct scatterlist *sg)
@@ -397,21 +375,16 @@ static void test_hash_sg_init(struct scatterlist *sg)
 
 static inline int do_one_ahash_op(struct ahash_request *req, int ret)
 {
-	if (ret == -EINPROGRESS || ret == -EBUSY) {
-		struct tcrypt_result *tr = req->base.data;
+	struct crypto_wait *wait = req->base.data;
 
-		wait_for_completion(&tr->completion);
-		reinit_completion(&tr->completion);
-		ret = tr->err;
-	}
-	return ret;
+	return crypto_wait_req(ret, wait);
 }
 
 struct test_mb_ahash_data {
 	struct scatterlist sg[TVMEMSIZE];
 	char result[64];
 	struct ahash_request *req;
-	struct tcrypt_result tresult;
+	struct crypto_wait wait;
 	char *xbuf[XBUFSIZE];
 };
 
@@ -440,7 +413,7 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
 		if (testmgr_alloc_buf(data[i].xbuf))
 			goto out;
 
-		init_completion(&data[i].tresult.completion);
+		crypto_init_wait(&data[i].wait);
 
 		data[i].req = ahash_request_alloc(tfm, GFP_KERNEL);
 		if (!data[i].req) {
@@ -449,8 +422,8 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
 			goto out;
 		}
 
-		ahash_request_set_callback(data[i].req, 0,
-					   tcrypt_complete, &data[i].tresult);
+		ahash_request_set_callback(data[i].req, 0, crypto_req_done,
+					   &data[i].wait);
 		test_hash_sg_init(data[i].sg);
 	}
 
@@ -492,16 +465,16 @@ static void test_mb_ahash_speed(const char *algo, unsigned int sec,
 			if (ret)
 				break;
 
-			complete(&data[k].tresult.completion);
-			data[k].tresult.err = 0;
+			crypto_req_done(&data[k].req->base, 0);
 		}
 
 		for (j = 0; j < k; j++) {
-			struct tcrypt_result *tr = &data[j].tresult;
+			struct crypto_wait *wait = &data[j].wait;
+			int wait_ret;
 
-			wait_for_completion(&tr->completion);
-			if (tr->err)
-				ret = tr->err;
+			wait_ret = crypto_wait_req(-EINPROGRESS, wait);
+			if (wait_ret)
+				ret = wait_ret;
 		}
 
 		end = get_cycles();
@@ -679,7 +652,7 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs,
 				    struct hash_speed *speed, unsigned mask)
 {
 	struct scatterlist sg[TVMEMSIZE];
-	struct tcrypt_result tresult;
+	struct crypto_wait wait;
 	struct ahash_request *req;
 	struct crypto_ahash *tfm;
 	char *output;
@@ -708,9 +681,9 @@ static void test_ahash_speed_common(const char *algo, unsigned int secs,
 		goto out;
 	}
 
-	init_completion(&tresult.completion);
+	crypto_init_wait(&wait);
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   tcrypt_complete, &tresult);
+				   crypto_req_done, &wait);
 
 	output = kmalloc(MAX_DIGEST_SIZE, GFP_KERNEL);
 	if (!output)
@@ -765,15 +738,9 @@ static void test_hash_speed(const char *algo, unsigned int secs,
 
 static inline int do_one_acipher_op(struct skcipher_request *req, int ret)
 {
-	if (ret == -EINPROGRESS || ret == -EBUSY) {
-		struct tcrypt_result *tr = req->base.data;
-
-		wait_for_completion(&tr->completion);
-		reinit_completion(&tr->completion);
-		ret = tr->err;
-	}
+	struct crypto_wait *wait = req->base.data;
 
-	return ret;
+	return crypto_wait_req(ret, wait);
 }
 
 static int test_acipher_jiffies(struct skcipher_request *req, int enc,
@@ -853,7 +820,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
 				unsigned int tcount, u8 *keysize, bool async)
 {
 	unsigned int ret, i, j, k, iv_len;
-	struct tcrypt_result tresult;
+	struct crypto_wait wait;
 	const char *key;
 	char iv[128];
 	struct skcipher_request *req;
@@ -866,7 +833,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
 	else
 		e = "decryption";
 
-	init_completion(&tresult.completion);
+	crypto_init_wait(&wait);
 
 	tfm = crypto_alloc_skcipher(algo, 0, async ? 0 : CRYPTO_ALG_ASYNC);
 
@@ -887,7 +854,7 @@ static void test_skcipher_speed(const char *algo, int enc, unsigned int secs,
 	}
 
 	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      tcrypt_complete, &tresult);
+				      crypto_req_done, &wait);
 
 	i = 0;
 	do {
@@ -1269,6 +1236,10 @@ static int do_test(const char *alg, u32 type, u32 mask, int m)
 		ret += tcrypt_test("sha3-512");
 		break;
 
+	case 52:
+		ret += tcrypt_test("sm3");
+		break;
+
 	case 100:
 		ret += tcrypt_test("hmac(md5)");
 		break;
@@ -1603,115 +1574,116 @@ static int do_test(const char *alg, u32 type, u32 mask, int m)
 				  speed_template_32);
 		break;
 
-
 	case 300:
 		if (alg) {
 			test_hash_speed(alg, sec, generic_hash_speed_template);
 			break;
 		}
-
 		/* fall through */
-
 	case 301:
 		test_hash_speed("md4", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 302:
 		test_hash_speed("md5", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 303:
 		test_hash_speed("sha1", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 304:
 		test_hash_speed("sha256", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 305:
 		test_hash_speed("sha384", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 306:
 		test_hash_speed("sha512", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 307:
 		test_hash_speed("wp256", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 308:
 		test_hash_speed("wp384", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 309:
 		test_hash_speed("wp512", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 310:
 		test_hash_speed("tgr128", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 311:
 		test_hash_speed("tgr160", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 312:
 		test_hash_speed("tgr192", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 313:
 		test_hash_speed("sha224", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 314:
 		test_hash_speed("rmd128", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 315:
 		test_hash_speed("rmd160", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 316:
 		test_hash_speed("rmd256", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 317:
 		test_hash_speed("rmd320", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 318:
 		test_hash_speed("ghash-generic", sec, hash_speed_template_16);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 319:
 		test_hash_speed("crc32c", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 320:
 		test_hash_speed("crct10dif", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 321:
 		test_hash_speed("poly1305", sec, poly1305_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 322:
 		test_hash_speed("sha3-224", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 323:
 		test_hash_speed("sha3-256", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 324:
 		test_hash_speed("sha3-384", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
 	case 325:
 		test_hash_speed("sha3-512", sec, generic_hash_speed_template);
 		if (mode > 300 && mode < 400) break;
-
+		/* fall through */
+	case 326:
+		test_hash_speed("sm3", sec, generic_hash_speed_template);
+		if (mode > 300 && mode < 400) break;
+		/* fall through */
 	case 399:
 		break;
 
@@ -1720,106 +1692,107 @@ static int do_test(const char *alg, u32 type, u32 mask, int m)
 			test_ahash_speed(alg, sec, generic_hash_speed_template);
 			break;
 		}
-
 		/* fall through */
-
 	case 401:
 		test_ahash_speed("md4", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 402:
 		test_ahash_speed("md5", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 403:
 		test_ahash_speed("sha1", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 404:
 		test_ahash_speed("sha256", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 405:
 		test_ahash_speed("sha384", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 406:
 		test_ahash_speed("sha512", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 407:
 		test_ahash_speed("wp256", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 408:
 		test_ahash_speed("wp384", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 409:
 		test_ahash_speed("wp512", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 410:
 		test_ahash_speed("tgr128", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 411:
 		test_ahash_speed("tgr160", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 412:
 		test_ahash_speed("tgr192", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 413:
 		test_ahash_speed("sha224", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 414:
 		test_ahash_speed("rmd128", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 415:
 		test_ahash_speed("rmd160", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 416:
 		test_ahash_speed("rmd256", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 417:
 		test_ahash_speed("rmd320", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 418:
 		test_ahash_speed("sha3-224", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 419:
 		test_ahash_speed("sha3-256", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 420:
 		test_ahash_speed("sha3-384", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
-
+		/* fall through */
 	case 421:
 		test_ahash_speed("sha3-512", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 422:
 		test_mb_ahash_speed("sha1", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 423:
 		test_mb_ahash_speed("sha256", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
 	case 424:
 		test_mb_ahash_speed("sha512", sec, generic_hash_speed_template);
 		if (mode > 400 && mode < 500) break;
-
+		/* fall through */
+	case 425:
+		test_mb_ahash_speed("sm3", sec, generic_hash_speed_template);
+		if (mode > 400 && mode < 500) break;
+		/* fall through */
 	case 499:
 		break;
 
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 7125ba3880af..29d7020b8826 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -76,11 +76,6 @@ int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
 #define ENCRYPT 1
 #define DECRYPT 0
 
-struct tcrypt_result {
-	struct completion completion;
-	int err;
-};
-
 struct aead_test_suite {
 	struct {
 		const struct aead_testvec *vecs;
@@ -155,17 +150,6 @@ static void hexdump(unsigned char *buf, unsigned int len)
 			buf, len, false);
 }
 
-static void tcrypt_complete(struct crypto_async_request *req, int err)
-{
-	struct tcrypt_result *res = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	res->err = err;
-	complete(&res->completion);
-}
-
 static int testmgr_alloc_buf(char *buf[XBUFSIZE])
 {
 	int i;
@@ -193,20 +177,10 @@ static void testmgr_free_buf(char *buf[XBUFSIZE])
 		free_page((unsigned long)buf[i]);
 }
 
-static int wait_async_op(struct tcrypt_result *tr, int ret)
-{
-	if (ret == -EINPROGRESS || ret == -EBUSY) {
-		wait_for_completion(&tr->completion);
-		reinit_completion(&tr->completion);
-		ret = tr->err;
-	}
-	return ret;
-}
-
 static int ahash_partial_update(struct ahash_request **preq,
 	struct crypto_ahash *tfm, const struct hash_testvec *template,
 	void *hash_buff, int k, int temp, struct scatterlist *sg,
-	const char *algo, char *result, struct tcrypt_result *tresult)
+	const char *algo, char *result, struct crypto_wait *wait)
 {
 	char *state;
 	struct ahash_request *req;
@@ -236,7 +210,7 @@ static int ahash_partial_update(struct ahash_request **preq,
 	}
 	ahash_request_set_callback(req,
 		CRYPTO_TFM_REQ_MAY_BACKLOG,
-		tcrypt_complete, tresult);
+		crypto_req_done, wait);
 
 	memcpy(hash_buff, template->plaintext + temp,
 		template->tap[k]);
@@ -247,7 +221,7 @@ static int ahash_partial_update(struct ahash_request **preq,
 		pr_err("alg: hash: Failed to import() for %s\n", algo);
 		goto out;
 	}
-	ret = wait_async_op(tresult, crypto_ahash_update(req));
+	ret = crypto_wait_req(crypto_ahash_update(req), wait);
 	if (ret)
 		goto out;
 	*preq = req;
@@ -272,7 +246,7 @@ static int __test_hash(struct crypto_ahash *tfm,
 	char *result;
 	char *key;
 	struct ahash_request *req;
-	struct tcrypt_result tresult;
+	struct crypto_wait wait;
 	void *hash_buff;
 	char *xbuf[XBUFSIZE];
 	int ret = -ENOMEM;
@@ -286,7 +260,7 @@ static int __test_hash(struct crypto_ahash *tfm,
 	if (testmgr_alloc_buf(xbuf))
 		goto out_nobuf;
 
-	init_completion(&tresult.completion);
+	crypto_init_wait(&wait);
 
 	req = ahash_request_alloc(tfm, GFP_KERNEL);
 	if (!req) {
@@ -295,7 +269,7 @@ static int __test_hash(struct crypto_ahash *tfm,
 		goto out_noreq;
 	}
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   tcrypt_complete, &tresult);
+				   crypto_req_done, &wait);
 
 	j = 0;
 	for (i = 0; i < tcount; i++) {
@@ -335,26 +309,26 @@ static int __test_hash(struct crypto_ahash *tfm,
 
 		ahash_request_set_crypt(req, sg, result, template[i].psize);
 		if (use_digest) {
-			ret = wait_async_op(&tresult, crypto_ahash_digest(req));
+			ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
 			if (ret) {
 				pr_err("alg: hash: digest failed on test %d "
 				       "for %s: ret=%d\n", j, algo, -ret);
 				goto out;
 			}
 		} else {
-			ret = wait_async_op(&tresult, crypto_ahash_init(req));
+			ret = crypto_wait_req(crypto_ahash_init(req), &wait);
 			if (ret) {
 				pr_err("alg: hash: init failed on test %d "
 				       "for %s: ret=%d\n", j, algo, -ret);
 				goto out;
 			}
-			ret = wait_async_op(&tresult, crypto_ahash_update(req));
+			ret = crypto_wait_req(crypto_ahash_update(req), &wait);
 			if (ret) {
 				pr_err("alg: hash: update failed on test %d "
 				       "for %s: ret=%d\n", j, algo, -ret);
 				goto out;
 			}
-			ret = wait_async_op(&tresult, crypto_ahash_final(req));
+			ret = crypto_wait_req(crypto_ahash_final(req), &wait);
 			if (ret) {
 				pr_err("alg: hash: final failed on test %d "
 				       "for %s: ret=%d\n", j, algo, -ret);
@@ -420,22 +394,10 @@ static int __test_hash(struct crypto_ahash *tfm,
 		}
 
 		ahash_request_set_crypt(req, sg, result, template[i].psize);
-		ret = crypto_ahash_digest(req);
-		switch (ret) {
-		case 0:
-			break;
-		case -EINPROGRESS:
-		case -EBUSY:
-			wait_for_completion(&tresult.completion);
-			reinit_completion(&tresult.completion);
-			ret = tresult.err;
-			if (!ret)
-				break;
-			/* fall through */
-		default:
-			printk(KERN_ERR "alg: hash: digest failed "
-			       "on chunking test %d for %s: "
-			       "ret=%d\n", j, algo, -ret);
+		ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
+		if (ret) {
+			pr_err("alg: hash: digest failed on chunking test %d for %s: ret=%d\n",
+			       j, algo, -ret);
 			goto out;
 		}
 
@@ -486,13 +448,13 @@ static int __test_hash(struct crypto_ahash *tfm,
 		}
 
 		ahash_request_set_crypt(req, sg, result, template[i].tap[0]);
-		ret = wait_async_op(&tresult, crypto_ahash_init(req));
+		ret = crypto_wait_req(crypto_ahash_init(req), &wait);
 		if (ret) {
 			pr_err("alg: hash: init failed on test %d for %s: ret=%d\n",
 				j, algo, -ret);
 			goto out;
 		}
-		ret = wait_async_op(&tresult, crypto_ahash_update(req));
+		ret = crypto_wait_req(crypto_ahash_update(req), &wait);
 		if (ret) {
 			pr_err("alg: hash: update failed on test %d for %s: ret=%d\n",
 				j, algo, -ret);
@@ -503,7 +465,7 @@ static int __test_hash(struct crypto_ahash *tfm,
 		for (k = 1; k < template[i].np; k++) {
 			ret = ahash_partial_update(&req, tfm, &template[i],
 				hash_buff, k, temp, &sg[0], algo, result,
-				&tresult);
+				&wait);
 			if (ret) {
 				pr_err("alg: hash: partial update failed on test %d for %s: ret=%d\n",
 					j, algo, -ret);
@@ -511,7 +473,7 @@ static int __test_hash(struct crypto_ahash *tfm,
 			}
 			temp += template[i].tap[k];
 		}
-		ret = wait_async_op(&tresult, crypto_ahash_final(req));
+		ret = crypto_wait_req(crypto_ahash_final(req), &wait);
 		if (ret) {
 			pr_err("alg: hash: final failed on test %d for %s: ret=%d\n",
 				j, algo, -ret);
@@ -580,7 +542,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 	struct scatterlist *sg;
 	struct scatterlist *sgout;
 	const char *e, *d;
-	struct tcrypt_result result;
+	struct crypto_wait wait;
 	unsigned int authsize, iv_len;
 	void *input;
 	void *output;
@@ -619,7 +581,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 	else
 		e = "decryption";
 
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 
 	req = aead_request_alloc(tfm, GFP_KERNEL);
 	if (!req) {
@@ -629,7 +591,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 	}
 
 	aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				  tcrypt_complete, &result);
+				  crypto_req_done, &wait);
 
 	iv_len = crypto_aead_ivsize(tfm);
 
@@ -709,7 +671,8 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 
 		aead_request_set_ad(req, template[i].alen);
 
-		ret = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
+		ret = crypto_wait_req(enc ? crypto_aead_encrypt(req)
+				      : crypto_aead_decrypt(req), &wait);
 
 		switch (ret) {
 		case 0:
@@ -722,13 +685,6 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 				goto out;
 			}
 			break;
-		case -EINPROGRESS:
-		case -EBUSY:
-			wait_for_completion(&result.completion);
-			reinit_completion(&result.completion);
-			ret = result.err;
-			if (!ret)
-				break;
 		case -EBADMSG:
 			if (template[i].novrfy)
 				/* verification failure was expected */
@@ -866,7 +822,8 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 
 		aead_request_set_ad(req, template[i].alen);
 
-		ret = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
+		ret = crypto_wait_req(enc ? crypto_aead_encrypt(req)
+				      : crypto_aead_decrypt(req), &wait);
 
 		switch (ret) {
 		case 0:
@@ -879,13 +836,6 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 				goto out;
 			}
 			break;
-		case -EINPROGRESS:
-		case -EBUSY:
-			wait_for_completion(&result.completion);
-			reinit_completion(&result.completion);
-			ret = result.err;
-			if (!ret)
-				break;
 		case -EBADMSG:
 			if (template[i].novrfy)
 				/* verification failure was expected */
@@ -1083,7 +1033,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
 	struct scatterlist sg[8];
 	struct scatterlist sgout[8];
 	const char *e, *d;
-	struct tcrypt_result result;
+	struct crypto_wait wait;
 	void *data;
 	char iv[MAX_IVLEN];
 	char *xbuf[XBUFSIZE];
@@ -1107,7 +1057,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
 	else
 		e = "decryption";
 
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 
 	req = skcipher_request_alloc(tfm, GFP_KERNEL);
 	if (!req) {
@@ -1117,7 +1067,7 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
 	}
 
 	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      tcrypt_complete, &result);
+				      crypto_req_done, &wait);
 
 	j = 0;
 	for (i = 0; i < tcount; i++) {
@@ -1164,21 +1114,10 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
 
 		skcipher_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
 					   template[i].ilen, iv);
-		ret = enc ? crypto_skcipher_encrypt(req) :
-			    crypto_skcipher_decrypt(req);
+		ret = crypto_wait_req(enc ? crypto_skcipher_encrypt(req) :
+				      crypto_skcipher_decrypt(req), &wait);
 
-		switch (ret) {
-		case 0:
-			break;
-		case -EINPROGRESS:
-		case -EBUSY:
-			wait_for_completion(&result.completion);
-			reinit_completion(&result.completion);
-			ret = result.err;
-			if (!ret)
-				break;
-			/* fall through */
-		default:
+		if (ret) {
 			pr_err("alg: skcipher%s: %s failed on test %d for %s: ret=%d\n",
 			       d, e, j, algo, -ret);
 			goto out;
@@ -1272,21 +1211,10 @@ static int __test_skcipher(struct crypto_skcipher *tfm, int enc,
 		skcipher_request_set_crypt(req, sg, (diff_dst) ? sgout : sg,
 					   template[i].ilen, iv);
 
-		ret = enc ? crypto_skcipher_encrypt(req) :
-			    crypto_skcipher_decrypt(req);
+		ret = crypto_wait_req(enc ? crypto_skcipher_encrypt(req) :
+				      crypto_skcipher_decrypt(req), &wait);
 
-		switch (ret) {
-		case 0:
-			break;
-		case -EINPROGRESS:
-		case -EBUSY:
-			wait_for_completion(&result.completion);
-			reinit_completion(&result.completion);
-			ret = result.err;
-			if (!ret)
-				break;
-			/* fall through */
-		default:
+		if (ret) {
 			pr_err("alg: skcipher%s: %s failed on chunk test %d for %s: ret=%d\n",
 			       d, e, j, algo, -ret);
 			goto out;
@@ -1462,7 +1390,7 @@ static int test_acomp(struct crypto_acomp *tfm,
 	int ret;
 	struct scatterlist src, dst;
 	struct acomp_req *req;
-	struct tcrypt_result result;
+	struct crypto_wait wait;
 
 	output = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
 	if (!output)
@@ -1486,7 +1414,7 @@ static int test_acomp(struct crypto_acomp *tfm,
 		}
 
 		memset(output, 0, dlen);
-		init_completion(&result.completion);
+		crypto_init_wait(&wait);
 		sg_init_one(&src, input_vec, ilen);
 		sg_init_one(&dst, output, dlen);
 
@@ -1501,9 +1429,9 @@ static int test_acomp(struct crypto_acomp *tfm,
 
 		acomp_request_set_params(req, &src, &dst, ilen, dlen);
 		acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					   tcrypt_complete, &result);
+					   crypto_req_done, &wait);
 
-		ret = wait_async_op(&result, crypto_acomp_compress(req));
+		ret = crypto_wait_req(crypto_acomp_compress(req), &wait);
 		if (ret) {
 			pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
 			       i + 1, algo, -ret);
@@ -1516,10 +1444,10 @@ static int test_acomp(struct crypto_acomp *tfm,
 		dlen = COMP_BUF_SIZE;
 		sg_init_one(&src, output, ilen);
 		sg_init_one(&dst, decomp_out, dlen);
-		init_completion(&result.completion);
+		crypto_init_wait(&wait);
 		acomp_request_set_params(req, &src, &dst, ilen, dlen);
 
-		ret = wait_async_op(&result, crypto_acomp_decompress(req));
+		ret = crypto_wait_req(crypto_acomp_decompress(req), &wait);
 		if (ret) {
 			pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
 			       i + 1, algo, -ret);
@@ -1563,7 +1491,7 @@ static int test_acomp(struct crypto_acomp *tfm,
 		}
 
 		memset(output, 0, dlen);
-		init_completion(&result.completion);
+		crypto_init_wait(&wait);
 		sg_init_one(&src, input_vec, ilen);
 		sg_init_one(&dst, output, dlen);
 
@@ -1578,9 +1506,9 @@ static int test_acomp(struct crypto_acomp *tfm,
 
 		acomp_request_set_params(req, &src, &dst, ilen, dlen);
 		acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					   tcrypt_complete, &result);
+					   crypto_req_done, &wait);
 
-		ret = wait_async_op(&result, crypto_acomp_decompress(req));
+		ret = crypto_wait_req(crypto_acomp_decompress(req), &wait);
 		if (ret) {
 			pr_err("alg: acomp: decompression failed on test %d for %s: ret=%d\n",
 			       i + 1, algo, -ret);
@@ -2000,7 +1928,7 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
 	void *a_public = NULL;
 	void *a_ss = NULL;
 	void *shared_secret = NULL;
-	struct tcrypt_result result;
+	struct crypto_wait wait;
 	unsigned int out_len_max;
 	int err = -ENOMEM;
 	struct scatterlist src, dst;
@@ -2009,7 +1937,7 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
 	if (!req)
 		return err;
 
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 
 	err = crypto_kpp_set_secret(tfm, vec->secret, vec->secret_size);
 	if (err < 0)
@@ -2027,10 +1955,10 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
 	sg_init_one(&dst, output_buf, out_len_max);
 	kpp_request_set_output(req, &dst, out_len_max);
 	kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				 tcrypt_complete, &result);
+				 crypto_req_done, &wait);
 
 	/* Compute party A's public key */
-	err = wait_async_op(&result, crypto_kpp_generate_public_key(req));
+	err = crypto_wait_req(crypto_kpp_generate_public_key(req), &wait);
 	if (err) {
 		pr_err("alg: %s: Party A: generate public key test failed. err %d\n",
 		       alg, err);
@@ -2069,8 +1997,8 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
 	kpp_request_set_input(req, &src, vec->b_public_size);
 	kpp_request_set_output(req, &dst, out_len_max);
 	kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				 tcrypt_complete, &result);
-	err = wait_async_op(&result, crypto_kpp_compute_shared_secret(req));
+				 crypto_req_done, &wait);
+	err = crypto_wait_req(crypto_kpp_compute_shared_secret(req), &wait);
 	if (err) {
 		pr_err("alg: %s: Party A: compute shared secret test failed. err %d\n",
 		       alg, err);
@@ -2100,9 +2028,9 @@ static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
 		kpp_request_set_input(req, &src, vec->expected_a_public_size);
 		kpp_request_set_output(req, &dst, out_len_max);
 		kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-					 tcrypt_complete, &result);
-		err = wait_async_op(&result,
-				    crypto_kpp_compute_shared_secret(req));
+					 crypto_req_done, &wait);
+		err = crypto_wait_req(crypto_kpp_compute_shared_secret(req),
+				      &wait);
 		if (err) {
 			pr_err("alg: %s: Party B: compute shared secret failed. err %d\n",
 			       alg, err);
@@ -2179,7 +2107,7 @@ static int test_akcipher_one(struct crypto_akcipher *tfm,
 	struct akcipher_request *req;
 	void *outbuf_enc = NULL;
 	void *outbuf_dec = NULL;
-	struct tcrypt_result result;
+	struct crypto_wait wait;
 	unsigned int out_len_max, out_len = 0;
 	int err = -ENOMEM;
 	struct scatterlist src, dst, src_tab[2];
@@ -2191,7 +2119,7 @@ static int test_akcipher_one(struct crypto_akcipher *tfm,
 	if (!req)
 		goto free_xbuf;
 
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 
 	if (vecs->public_key_vec)
 		err = crypto_akcipher_set_pub_key(tfm, vecs->key,
@@ -2220,13 +2148,13 @@ static int test_akcipher_one(struct crypto_akcipher *tfm,
 	akcipher_request_set_crypt(req, src_tab, &dst, vecs->m_size,
 				   out_len_max);
 	akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      tcrypt_complete, &result);
+				      crypto_req_done, &wait);
 
-	err = wait_async_op(&result, vecs->siggen_sigver_test ?
-				     /* Run asymmetric signature generation */
-				     crypto_akcipher_sign(req) :
-				     /* Run asymmetric encrypt */
-				     crypto_akcipher_encrypt(req));
+	err = crypto_wait_req(vecs->siggen_sigver_test ?
+			      /* Run asymmetric signature generation */
+			      crypto_akcipher_sign(req) :
+			      /* Run asymmetric encrypt */
+			      crypto_akcipher_encrypt(req), &wait);
 	if (err) {
 		pr_err("alg: akcipher: encrypt test failed. err %d\n", err);
 		goto free_all;
@@ -2261,14 +2189,14 @@ static int test_akcipher_one(struct crypto_akcipher *tfm,
 
 	sg_init_one(&src, xbuf[0], vecs->c_size);
 	sg_init_one(&dst, outbuf_dec, out_len_max);
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 	akcipher_request_set_crypt(req, &src, &dst, vecs->c_size, out_len_max);
 
-	err = wait_async_op(&result, vecs->siggen_sigver_test ?
-				     /* Run asymmetric signature verification */
-				     crypto_akcipher_verify(req) :
-				     /* Run asymmetric decrypt */
-				     crypto_akcipher_decrypt(req));
+	err = crypto_wait_req(vecs->siggen_sigver_test ?
+			      /* Run asymmetric signature verification */
+			      crypto_akcipher_verify(req) :
+			      /* Run asymmetric decrypt */
+			      crypto_akcipher_decrypt(req), &wait);
 	if (err) {
 		pr_err("alg: akcipher: decrypt test failed. err %d\n", err);
 		goto free_all;
@@ -3500,6 +3428,12 @@ static const struct alg_test_desc alg_test_descs[] = {
 			.hash = __VECS(sha512_tv_template)
 		}
 	}, {
+		.alg = "sm3",
+		.test = alg_test_hash,
+		.suite = {
+			.hash = __VECS(sm3_tv_template)
+		}
+	}, {
 		.alg = "tgr128",
 		.test = alg_test_hash,
 		.suite = {
diff --git a/crypto/testmgr.h b/crypto/testmgr.h
index d54971d2d1c8..a714b6293959 100644
--- a/crypto/testmgr.h
+++ b/crypto/testmgr.h
@@ -1497,6 +1497,73 @@ static const struct hash_testvec crct10dif_tv_template[] = {
 	}
 };
 
+/* Example vectors below taken from
+ * http://www.oscca.gov.cn/UpFile/20101222141857786.pdf
+ *
+ * The rest taken from
+ * https://github.com/adamws/oscca-sm3
+ */
+static const struct hash_testvec sm3_tv_template[] = {
+	{
+		.plaintext = "",
+		.psize = 0,
+		.digest = (u8 *)(u8 []) {
+			0x1A, 0xB2, 0x1D, 0x83, 0x55, 0xCF, 0xA1, 0x7F,
+			0x8e, 0x61, 0x19, 0x48, 0x31, 0xE8, 0x1A, 0x8F,
+			0x22, 0xBE, 0xC8, 0xC7, 0x28, 0xFE, 0xFB, 0x74,
+			0x7E, 0xD0, 0x35, 0xEB, 0x50, 0x82, 0xAA, 0x2B }
+	}, {
+		.plaintext = "a",
+		.psize = 1,
+		.digest = (u8 *)(u8 []) {
+			0x62, 0x34, 0x76, 0xAC, 0x18, 0xF6, 0x5A, 0x29,
+			0x09, 0xE4, 0x3C, 0x7F, 0xEC, 0x61, 0xB4, 0x9C,
+			0x7E, 0x76, 0x4A, 0x91, 0xA1, 0x8C, 0xCB, 0x82,
+			0xF1, 0x91, 0x7A, 0x29, 0xC8, 0x6C, 0x5E, 0x88 }
+	}, {
+		/* A.1. Example 1 */
+		.plaintext = "abc",
+		.psize = 3,
+		.digest = (u8 *)(u8 []) {
+			0x66, 0xC7, 0xF0, 0xF4, 0x62, 0xEE, 0xED, 0xD9,
+			0xD1, 0xF2, 0xD4, 0x6B, 0xDC, 0x10, 0xE4, 0xE2,
+			0x41, 0x67, 0xC4, 0x87, 0x5C, 0xF2, 0xF7, 0xA2,
+			0x29, 0x7D, 0xA0, 0x2B, 0x8F, 0x4B, 0xA8, 0xE0 }
+	}, {
+		.plaintext = "abcdefghijklmnopqrstuvwxyz",
+		.psize = 26,
+		.digest = (u8 *)(u8 []) {
+			0xB8, 0x0F, 0xE9, 0x7A, 0x4D, 0xA2, 0x4A, 0xFC,
+			0x27, 0x75, 0x64, 0xF6, 0x6A, 0x35, 0x9E, 0xF4,
+			0x40, 0x46, 0x2A, 0xD2, 0x8D, 0xCC, 0x6D, 0x63,
+			0xAD, 0xB2, 0x4D, 0x5C, 0x20, 0xA6, 0x15, 0x95 }
+	}, {
+		/* A.1. Example 2 */
+		.plaintext = "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdab"
+			     "cdabcdabcdabcdabcd",
+		.psize = 64,
+		.digest = (u8 *)(u8 []) {
+			0xDE, 0xBE, 0x9F, 0xF9, 0x22, 0x75, 0xB8, 0xA1,
+			0x38, 0x60, 0x48, 0x89, 0xC1, 0x8E, 0x5A, 0x4D,
+			0x6F, 0xDB, 0x70, 0xE5, 0x38, 0x7E, 0x57, 0x65,
+			0x29, 0x3D, 0xCB, 0xA3, 0x9C, 0x0C, 0x57, 0x32 }
+	}, {
+		.plaintext = "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
+			     "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
+			     "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
+			     "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
+			     "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
+			     "abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
+			     "abcdabcdabcdabcdabcdabcdabcdabcd",
+		.psize = 256,
+		.digest = (u8 *)(u8 []) {
+			0xB9, 0x65, 0x76, 0x4C, 0x8B, 0xEB, 0xB0, 0x91,
+			0xC7, 0x60, 0x2B, 0x74, 0xAF, 0xD3, 0x4E, 0xEF,
+			0xB5, 0x31, 0xDC, 0xCB, 0x4E, 0x00, 0x76, 0xD9,
+			0xB7, 0xCD, 0x81, 0x31, 0x99, 0xB4, 0x59, 0x71 }
+	}
+};
+
 /*
  * SHA1 test vectors  from from FIPS PUB 180-1
  * Long vector from CAVS 5.0
diff --git a/crypto/xts.c b/crypto/xts.c
index d86c11a8c882..f317c48b5e43 100644
--- a/crypto/xts.c
+++ b/crypto/xts.c
@@ -269,9 +269,7 @@ static int do_encrypt(struct skcipher_request *req, int err)
 		      crypto_skcipher_encrypt(subreq) ?:
 		      post_crypt(req);
 
-		if (err == -EINPROGRESS ||
-		    (err == -EBUSY &&
-		     req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+		if (err == -EINPROGRESS || err == -EBUSY)
 			return err;
 	}
 
@@ -321,9 +319,7 @@ static int do_decrypt(struct skcipher_request *req, int err)
 		      crypto_skcipher_decrypt(subreq) ?:
 		      post_crypt(req);
 
-		if (err == -EINPROGRESS ||
-		    (err == -EBUSY &&
-		     req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
+		if (err == -EINPROGRESS || err == -EBUSY)
 			return err;
 	}
 
@@ -554,8 +550,10 @@ static int create(struct crypto_template *tmpl, struct rtattr **tb)
 		ctx->name[len - 1] = 0;
 
 		if (snprintf(inst->alg.base.cra_name, CRYPTO_MAX_ALG_NAME,
-			     "xts(%s)", ctx->name) >= CRYPTO_MAX_ALG_NAME)
-			return -ENAMETOOLONG;
+			     "xts(%s)", ctx->name) >= CRYPTO_MAX_ALG_NAME) {
+			err = -ENAMETOOLONG;
+			goto err_drop_spawn;
+		}
 	} else
 		goto err_drop_spawn;
 
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 505c676fa9c7..152744c5ef0f 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Device Drivers"
 
 source "drivers/amba/Kconfig"
@@ -208,4 +209,6 @@ source "drivers/tee/Kconfig"
 
 source "drivers/mux/Kconfig"
 
+source "drivers/opp/Kconfig"
+
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index d90fdc413648..1d034b680431 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux kernel device drivers.
 #
@@ -125,6 +126,7 @@ obj-$(CONFIG_ACCESSIBILITY)	+= accessibility/
 obj-$(CONFIG_ISDN)		+= isdn/
 obj-$(CONFIG_EDAC)		+= edac/
 obj-$(CONFIG_EISA)		+= eisa/
+obj-$(CONFIG_PM_OPP)		+= opp/
 obj-$(CONFIG_CPU_FREQ)		+= cpufreq/
 obj-$(CONFIG_CPU_IDLE)		+= cpuidle/
 obj-y				+= mmc/
diff --git a/drivers/accessibility/Kconfig b/drivers/accessibility/Kconfig
index ef3b65bfdd0a..00f7512c9cf4 100644
--- a/drivers/accessibility/Kconfig
+++ b/drivers/accessibility/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig ACCESSIBILITY
 	bool "Accessibility support"
 	---help---
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 1ce52f84dc23..91477d5ab422 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # ACPI Configuration
 #
@@ -80,6 +81,11 @@ endif
 config ACPI_SPCR_TABLE
 	bool
 
+config ACPI_LPIT
+	bool
+	depends on X86_64
+	default y
+
 config ACPI_SLEEP
 	bool
 	depends on SUSPEND || HIBERNATION
@@ -535,4 +541,20 @@ if ARM64
 source "drivers/acpi/arm64/Kconfig"
 endif
 
+config TPS68470_PMIC_OPREGION
+	bool "ACPI operation region support for TPS68470 PMIC"
+	depends on MFD_TPS68470
+	help
+	  This config adds ACPI operation region support for TI TPS68470 PMIC.
+	  TPS68470 device is an advanced power management unit that powers
+	  a Compact Camera Module (CCM), generates clocks for image sensors,
+	  drives a dual LED for flash and incorporates two LED drivers for
+	  general purpose indicators.
+	  This driver enables ACPI operation region support control voltage
+	  regulators and clocks.
+
+	  This option is a bool as it provides an ACPI operation
+	  region, which must be available before any of the devices
+	  using this, are probed.
+
 endif	# ACPI
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 90265ab4437a..31c15d84a8d0 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux ACPI interpreter
 #
@@ -56,6 +57,7 @@ acpi-$(CONFIG_DEBUG_FS)		+= debugfs.o
 acpi-$(CONFIG_ACPI_NUMA)	+= numa.o
 acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
 acpi-y				+= acpi_lpat.o
+acpi-$(CONFIG_ACPI_LPIT)	+= acpi_lpit.o
 acpi-$(CONFIG_ACPI_GENERIC_GSI) += irq.o
 acpi-$(CONFIG_ACPI_WATCHDOG)	+= acpi_watchdog.o
 
@@ -107,6 +109,8 @@ obj-$(CONFIG_CHT_WC_PMIC_OPREGION) += pmic/intel_pmic_chtwc.o
 
 obj-$(CONFIG_ACPI_CONFIGFS)	+= acpi_configfs.o
 
+obj-$(CONFIG_TPS68470_PMIC_OPREGION)	+= pmic/tps68470_pmic.o
+
 video-objs			+= acpi_video.o video_detect.o
 obj-y				+= dptf/
 
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 8f52483219ba..47a7ed557bd6 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -265,6 +265,7 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
 	default:
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
+	/* fall through */
 	case ACPI_AC_NOTIFY_STATUS:
 	case ACPI_NOTIFY_BUS_CHECK:
 	case ACPI_NOTIFY_DEVICE_CHECK:
diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c
index 853bc7fc673f..b58850389094 100644
--- a/drivers/acpi/acpi_configfs.c
+++ b/drivers/acpi/acpi_configfs.c
@@ -204,7 +204,7 @@ struct configfs_attribute *acpi_table_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type acpi_table_type = {
+static const struct config_item_type acpi_table_type = {
 	.ct_owner = THIS_MODULE,
 	.ct_bin_attrs = acpi_table_bin_attrs,
 	.ct_attrs = acpi_table_attrs,
@@ -237,12 +237,12 @@ struct configfs_group_operations acpi_table_group_ops = {
 	.drop_item = acpi_table_drop_item,
 };
 
-static struct config_item_type acpi_tables_type = {
+static const struct config_item_type acpi_tables_type = {
 	.ct_owner = THIS_MODULE,
 	.ct_group_ops = &acpi_table_group_ops,
 };
 
-static struct config_item_type acpi_root_group_type = {
+static const struct config_item_type acpi_root_group_type = {
 	.ct_owner = THIS_MODULE,
 };
 
diff --git a/drivers/acpi/acpi_lpit.c b/drivers/acpi/acpi_lpit.c
new file mode 100644
index 000000000000..e94e478dd18b
--- /dev/null
+++ b/drivers/acpi/acpi_lpit.c
@@ -0,0 +1,162 @@
+
+/*
+ * acpi_lpit.c - LPIT table processing functions
+ *
+ * Copyright (C) 2017 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/cpu.h>
+#include <linux/acpi.h>
+#include <asm/msr.h>
+#include <asm/tsc.h>
+
+struct lpit_residency_info {
+	struct acpi_generic_address gaddr;
+	u64 frequency;
+	void __iomem *iomem_addr;
+};
+
+/* Storage for an memory mapped and FFH based entries */
+static struct lpit_residency_info residency_info_mem;
+static struct lpit_residency_info residency_info_ffh;
+
+static int lpit_read_residency_counter_us(u64 *counter, bool io_mem)
+{
+	int err;
+
+	if (io_mem) {
+		u64 count = 0;
+		int error;
+
+		error = acpi_os_read_iomem(residency_info_mem.iomem_addr, &count,
+					   residency_info_mem.gaddr.bit_width);
+		if (error)
+			return error;
+
+		*counter = div64_u64(count * 1000000ULL, residency_info_mem.frequency);
+		return 0;
+	}
+
+	err = rdmsrl_safe(residency_info_ffh.gaddr.address, counter);
+	if (!err) {
+		u64 mask = GENMASK_ULL(residency_info_ffh.gaddr.bit_offset +
+				       residency_info_ffh.gaddr. bit_width - 1,
+				       residency_info_ffh.gaddr.bit_offset);
+
+		*counter &= mask;
+		*counter >>= residency_info_ffh.gaddr.bit_offset;
+		*counter = div64_u64(*counter * 1000000ULL, residency_info_ffh.frequency);
+		return 0;
+	}
+
+	return -ENODATA;
+}
+
+static ssize_t low_power_idle_system_residency_us_show(struct device *dev,
+						       struct device_attribute *attr,
+						       char *buf)
+{
+	u64 counter;
+	int ret;
+
+	ret = lpit_read_residency_counter_us(&counter, true);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "%llu\n", counter);
+}
+static DEVICE_ATTR_RO(low_power_idle_system_residency_us);
+
+static ssize_t low_power_idle_cpu_residency_us_show(struct device *dev,
+						    struct device_attribute *attr,
+						    char *buf)
+{
+	u64 counter;
+	int ret;
+
+	ret = lpit_read_residency_counter_us(&counter, false);
+	if (ret)
+		return ret;
+
+	return sprintf(buf, "%llu\n", counter);
+}
+static DEVICE_ATTR_RO(low_power_idle_cpu_residency_us);
+
+int lpit_read_residency_count_address(u64 *address)
+{
+	if (!residency_info_mem.gaddr.address)
+		return -EINVAL;
+
+	*address = residency_info_mem.gaddr.address;
+
+	return 0;
+}
+
+static void lpit_update_residency(struct lpit_residency_info *info,
+				 struct acpi_lpit_native *lpit_native)
+{
+	info->frequency = lpit_native->counter_frequency ?
+				lpit_native->counter_frequency : tsc_khz * 1000;
+	if (!info->frequency)
+		info->frequency = 1;
+
+	info->gaddr = lpit_native->residency_counter;
+	if (info->gaddr.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
+		info->iomem_addr = ioremap_nocache(info->gaddr.address,
+						   info->gaddr.bit_width / 8);
+		if (!info->iomem_addr)
+			return;
+
+		/* Silently fail, if cpuidle attribute group is not present */
+		sysfs_add_file_to_group(&cpu_subsys.dev_root->kobj,
+					&dev_attr_low_power_idle_system_residency_us.attr,
+					"cpuidle");
+	} else if (info->gaddr.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE) {
+		/* Silently fail, if cpuidle attribute group is not present */
+		sysfs_add_file_to_group(&cpu_subsys.dev_root->kobj,
+					&dev_attr_low_power_idle_cpu_residency_us.attr,
+					"cpuidle");
+	}
+}
+
+static void lpit_process(u64 begin, u64 end)
+{
+	while (begin + sizeof(struct acpi_lpit_native) < end) {
+		struct acpi_lpit_native *lpit_native = (struct acpi_lpit_native *)begin;
+
+		if (!lpit_native->header.type && !lpit_native->header.flags) {
+			if (lpit_native->residency_counter.space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY &&
+			    !residency_info_mem.gaddr.address) {
+				lpit_update_residency(&residency_info_mem, lpit_native);
+			} else if (lpit_native->residency_counter.space_id == ACPI_ADR_SPACE_FIXED_HARDWARE &&
+				   !residency_info_ffh.gaddr.address) {
+				lpit_update_residency(&residency_info_ffh, lpit_native);
+			}
+		}
+		begin += lpit_native->header.length;
+	}
+}
+
+void acpi_init_lpit(void)
+{
+	acpi_status status;
+	u64 lpit_begin;
+	struct acpi_table_lpit *lpit;
+
+	status = acpi_get_table(ACPI_SIG_LPIT, 0, (struct acpi_table_header **)&lpit);
+
+	if (ACPI_FAILURE(status))
+		return;
+
+	lpit_begin = (u64)lpit + sizeof(*lpit);
+	lpit_process(lpit_begin, lpit_begin + lpit->header.length);
+}
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 032ae44710e5..7f2b02cc8ea1 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -362,7 +362,7 @@ static int register_device_clock(struct acpi_device *adev,
 {
 	const struct lpss_device_desc *dev_desc = pdata->dev_desc;
 	const char *devname = dev_name(&adev->dev);
-	struct clk *clk = ERR_PTR(-ENODEV);
+	struct clk *clk;
 	struct lpss_clk_data *clk_data;
 	const char *parent, *clk_name;
 	void __iomem *prv_base;
@@ -693,7 +693,7 @@ static int acpi_lpss_activate(struct device *dev)
 	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
 	int ret;
 
-	ret = acpi_dev_runtime_resume(dev);
+	ret = acpi_dev_resume(dev);
 	if (ret)
 		return ret;
 
@@ -713,42 +713,8 @@ static int acpi_lpss_activate(struct device *dev)
 
 static void acpi_lpss_dismiss(struct device *dev)
 {
-	acpi_dev_runtime_suspend(dev);
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int acpi_lpss_suspend_late(struct device *dev)
-{
-	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
-	int ret;
-
-	ret = pm_generic_suspend_late(dev);
-	if (ret)
-		return ret;
-
-	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
-		acpi_lpss_save_ctx(dev, pdata);
-
-	return acpi_dev_suspend_late(dev);
-}
-
-static int acpi_lpss_resume_early(struct device *dev)
-{
-	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
-	int ret;
-
-	ret = acpi_dev_resume_early(dev);
-	if (ret)
-		return ret;
-
-	acpi_lpss_d3_to_d0_delay(pdata);
-
-	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
-		acpi_lpss_restore_ctx(dev, pdata);
-
-	return pm_generic_resume_early(dev);
+	acpi_dev_suspend(dev, false);
 }
-#endif /* CONFIG_PM_SLEEP */
 
 /* IOSF SB for LPSS island */
 #define LPSS_IOSF_UNIT_LPIOEP		0xA0
@@ -835,19 +801,15 @@ static void lpss_iosf_exit_d3_state(void)
 	mutex_unlock(&lpss_iosf_mutex);
 }
 
-static int acpi_lpss_runtime_suspend(struct device *dev)
+static int acpi_lpss_suspend(struct device *dev, bool wakeup)
 {
 	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
 	int ret;
 
-	ret = pm_generic_runtime_suspend(dev);
-	if (ret)
-		return ret;
-
 	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
 		acpi_lpss_save_ctx(dev, pdata);
 
-	ret = acpi_dev_runtime_suspend(dev);
+	ret = acpi_dev_suspend(dev, wakeup);
 
 	/*
 	 * This call must be last in the sequence, otherwise PMC will return
@@ -860,7 +822,7 @@ static int acpi_lpss_runtime_suspend(struct device *dev)
 	return ret;
 }
 
-static int acpi_lpss_runtime_resume(struct device *dev)
+static int acpi_lpss_resume(struct device *dev)
 {
 	struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev));
 	int ret;
@@ -872,7 +834,7 @@ static int acpi_lpss_runtime_resume(struct device *dev)
 	if (lpss_quirks & LPSS_QUIRK_ALWAYS_POWER_ON && iosf_mbi_available())
 		lpss_iosf_exit_d3_state();
 
-	ret = acpi_dev_runtime_resume(dev);
+	ret = acpi_dev_resume(dev);
 	if (ret)
 		return ret;
 
@@ -881,7 +843,41 @@ static int acpi_lpss_runtime_resume(struct device *dev)
 	if (pdata->dev_desc->flags & LPSS_SAVE_CTX)
 		acpi_lpss_restore_ctx(dev, pdata);
 
-	return pm_generic_runtime_resume(dev);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int acpi_lpss_suspend_late(struct device *dev)
+{
+	int ret;
+
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	ret = pm_generic_suspend_late(dev);
+	return ret ? ret : acpi_lpss_suspend(dev, device_may_wakeup(dev));
+}
+
+static int acpi_lpss_resume_early(struct device *dev)
+{
+	int ret = acpi_lpss_resume(dev);
+
+	return ret ? ret : pm_generic_resume_early(dev);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static int acpi_lpss_runtime_suspend(struct device *dev)
+{
+	int ret = pm_generic_runtime_suspend(dev);
+
+	return ret ? ret : acpi_lpss_suspend(dev, true);
+}
+
+static int acpi_lpss_runtime_resume(struct device *dev)
+{
+	int ret = acpi_lpss_resume(dev);
+
+	return ret ? ret : pm_generic_runtime_resume(dev);
 }
 #endif /* CONFIG_PM */
 
@@ -894,13 +890,20 @@ static struct dev_pm_domain acpi_lpss_pm_domain = {
 #ifdef CONFIG_PM
 #ifdef CONFIG_PM_SLEEP
 		.prepare = acpi_subsys_prepare,
-		.complete = pm_complete_with_resume_check,
+		.complete = acpi_subsys_complete,
 		.suspend = acpi_subsys_suspend,
 		.suspend_late = acpi_lpss_suspend_late,
+		.suspend_noirq = acpi_subsys_suspend_noirq,
+		.resume_noirq = acpi_subsys_resume_noirq,
 		.resume_early = acpi_lpss_resume_early,
 		.freeze = acpi_subsys_freeze,
+		.freeze_late = acpi_subsys_freeze_late,
+		.freeze_noirq = acpi_subsys_freeze_noirq,
+		.thaw_noirq = acpi_subsys_thaw_noirq,
 		.poweroff = acpi_subsys_suspend,
 		.poweroff_late = acpi_lpss_suspend_late,
+		.poweroff_noirq = acpi_subsys_suspend_noirq,
+		.restore_noirq = acpi_subsys_resume_noirq,
 		.restore_early = acpi_lpss_resume_early,
 #endif
 		.runtime_suspend = acpi_lpss_runtime_suspend,
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 86c10599d9f8..449d86d39965 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -82,6 +82,7 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
 		 * PIIX4 models.
 		 */
 		errata.piix4.throttle = 1;
+		/* fall through*/
 
 	case 2:		/* PIIX4E */
 	case 3:		/* PIIX4M */
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index e88fe3632dd6..0972ec0e2eb8 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -418,7 +418,7 @@ static int video_set_report_key_events(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id video_dmi_table[] = {
+static const struct dmi_system_id video_dmi_table[] = {
 	/*
 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
 	 */
diff --git a/drivers/acpi/acpi_watchdog.c b/drivers/acpi/acpi_watchdog.c
index bf22c29d2517..11b113f8e367 100644
--- a/drivers/acpi/acpi_watchdog.c
+++ b/drivers/acpi/acpi_watchdog.c
@@ -66,7 +66,7 @@ void __init acpi_watchdog_init(void)
 	for (i = 0; i < wdat->entries; i++) {
 		const struct acpi_generic_address *gas;
 		struct resource_entry *rentry;
-		struct resource res;
+		struct resource res = {};
 		bool found;
 
 		gas = &entries[i].register_region;
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 1709551bc4aa..71f6f2624deb 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ACPICA Core interpreter
 #
@@ -177,6 +178,7 @@ acpi-y +=		\
 	utresrc.o	\
 	utstate.o	\
 	utstring.o	\
+	utstrsuppt.o	\
 	utstrtoul64.o	\
 	utxface.o	\
 	utxfinit.o	\
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index fd4f3cacb356..cd722d8edacb 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -66,9 +66,9 @@ acpi_status
 acpi_hw_validate_register(struct acpi_generic_address *reg,
 			  u8 max_bit_width, u64 *address);
 
-acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg);
+acpi_status acpi_hw_read(u64 *value, struct acpi_generic_address *reg);
 
-acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg);
+acpi_status acpi_hw_write(u64 value, struct acpi_generic_address *reg);
 
 struct acpi_bit_register_info *acpi_hw_get_bit_register_info(u32 register_id);
 
diff --git a/drivers/acpi/acpica/acinterp.h b/drivers/acpi/acpica/acinterp.h
index 29a863c85318..29555c8789a3 100644
--- a/drivers/acpi/acpica/acinterp.h
+++ b/drivers/acpi/acpica/acinterp.h
@@ -101,7 +101,8 @@ typedef const struct acpi_exdump_info {
  */
 acpi_status
 acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
-			   union acpi_operand_object **result_desc, u32 flags);
+			   union acpi_operand_object **result_desc,
+			   u32 implicit_conversion);
 
 acpi_status
 acpi_ex_convert_to_buffer(union acpi_operand_object *obj_desc,
@@ -424,9 +425,6 @@ acpi_ex_store_object_to_node(union acpi_operand_object *source_desc,
 			     struct acpi_walk_state *walk_state,
 			     u8 implicit_conversion);
 
-#define ACPI_IMPLICIT_CONVERSION        TRUE
-#define ACPI_NO_IMPLICIT_CONVERSION     FALSE
-
 /*
  * exstoren - resolve/store object
  */
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 745134ade35f..83b75e9db7ef 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -141,6 +141,11 @@ extern const char *acpi_gbl_ptyp_decode[];
 #define ACPI_MSG_SUFFIX \
 	acpi_os_printf (" (%8.8X/%s-%u)\n", ACPI_CA_VERSION, module_name, line_number)
 
+/* Flags to indicate implicit or explicit string-to-integer conversion */
+
+#define ACPI_IMPLICIT_CONVERSION        TRUE
+#define ACPI_NO_IMPLICIT_CONVERSION     FALSE
+
 /* Types for Resource descriptor entries */
 
 #define ACPI_INVALID_RESOURCE           0
@@ -197,15 +202,31 @@ void acpi_ut_strlwr(char *src_string);
 
 int acpi_ut_stricmp(char *string1, char *string2);
 
-acpi_status acpi_ut_strtoul64(char *string, u32 flags, u64 *ret_integer);
+/*
+ * utstrsuppt - string-to-integer conversion support functions
+ */
+acpi_status acpi_ut_convert_octal_string(char *string, u64 *return_value);
+
+acpi_status acpi_ut_convert_decimal_string(char *string, u64 *return_value_ptr);
+
+acpi_status acpi_ut_convert_hex_string(char *string, u64 *return_value_ptr);
+
+char acpi_ut_remove_whitespace(char **string);
+
+char acpi_ut_remove_leading_zeros(char **string);
+
+u8 acpi_ut_detect_hex_prefix(char **string);
+
+u8 acpi_ut_detect_octal_prefix(char **string);
 
 /*
- * Values for Flags above
- * Note: LIMIT values correspond to acpi_gbl_integer_byte_width values (4/8)
+ * utstrtoul64 - string-to-integer conversion functions
  */
-#define ACPI_STRTOUL_32BIT          0x04	/* 4 bytes */
-#define ACPI_STRTOUL_64BIT          0x08	/* 8 bytes */
-#define ACPI_STRTOUL_BASE16         0x10	/* Default: Base10/16 */
+acpi_status acpi_ut_strtoul64(char *string, u64 *ret_integer);
+
+u64 acpi_ut_explicit_strtoul64(char *string);
+
+u64 acpi_ut_implicit_strtoul64(char *string);
 
 /*
  * utglobal - Global data structures and procedures
diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c
index 857dbc43a9b1..32d546f0db2f 100644
--- a/drivers/acpi/acpica/dbconvert.c
+++ b/drivers/acpi/acpica/dbconvert.c
@@ -277,10 +277,7 @@ acpi_db_convert_to_object(acpi_object_type type,
 	default:
 
 		object->type = ACPI_TYPE_INTEGER;
-		status = acpi_ut_strtoul64(string,
-					   (acpi_gbl_integer_byte_width |
-					    ACPI_STRTOUL_BASE16),
-					   &object->integer.value);
+		status = acpi_ut_strtoul64(string, &object->integer.value);
 		break;
 	}
 
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 20d7744b06ae..22f45d090733 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -134,7 +134,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
 	 * object. Implicitly convert the argument if necessary.
 	 */
 	status = acpi_ex_convert_to_integer(obj_desc, &local_obj_desc,
-					    ACPI_STRTOUL_BASE16);
+					    ACPI_IMPLICIT_CONVERSION);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;
 	}
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 229382035550..263d8fc4a9e2 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -390,8 +390,8 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list)
 	struct acpi_gpe_handler_info *gpe_handler_info;
 	u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
 	u8 enabled_status_byte;
-	u32 status_reg;
-	u32 enable_reg;
+	u64 status_reg;
+	u64 enable_reg;
 	acpi_cpu_flags flags;
 	u32 i;
 	u32 j;
@@ -472,7 +472,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list)
 					  gpe_register_info->base_gpe_number,
 					  gpe_register_info->base_gpe_number +
 					  (ACPI_GPE_REGISTER_WIDTH - 1),
-					  status_reg, enable_reg,
+					  (u32)status_reg, (u32)enable_reg,
 					  gpe_register_info->enable_for_run,
 					  gpe_register_info->enable_for_wake));
 
diff --git a/drivers/acpi/acpica/exconcat.c b/drivers/acpi/acpica/exconcat.c
index 76bfb7dcae2f..59b8de2f07d3 100644
--- a/drivers/acpi/acpica/exconcat.c
+++ b/drivers/acpi/acpica/exconcat.c
@@ -156,7 +156,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 		status =
 		    acpi_ex_convert_to_integer(local_operand1, &temp_operand1,
-					       ACPI_STRTOUL_BASE16);
+					       ACPI_IMPLICIT_CONVERSION);
 		break;
 
 	case ACPI_TYPE_BUFFER:
diff --git a/drivers/acpi/acpica/exconvrt.c b/drivers/acpi/acpica/exconvrt.c
index f71028e334ee..23ebadb06a95 100644
--- a/drivers/acpi/acpica/exconvrt.c
+++ b/drivers/acpi/acpica/exconvrt.c
@@ -57,10 +57,10 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 max_length);
  *
  * FUNCTION:    acpi_ex_convert_to_integer
  *
- * PARAMETERS:  obj_desc        - Object to be converted. Must be an
- *                                Integer, Buffer, or String
- *              result_desc     - Where the new Integer object is returned
- *              flags           - Used for string conversion
+ * PARAMETERS:  obj_desc            - Object to be converted. Must be an
+ *                                    Integer, Buffer, or String
+ *              result_desc         - Where the new Integer object is returned
+ *              implicit_conversion - Used for string conversion
  *
  * RETURN:      Status
  *
@@ -70,14 +70,14 @@ acpi_ex_convert_to_ascii(u64 integer, u16 base, u8 *string, u8 max_length);
 
 acpi_status
 acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
-			   union acpi_operand_object **result_desc, u32 flags)
+			   union acpi_operand_object **result_desc,
+			   u32 implicit_conversion)
 {
 	union acpi_operand_object *return_desc;
 	u8 *pointer;
 	u64 result;
 	u32 i;
 	u32 count;
-	acpi_status status;
 
 	ACPI_FUNCTION_TRACE_PTR(ex_convert_to_integer, obj_desc);
 
@@ -123,12 +123,18 @@ acpi_ex_convert_to_integer(union acpi_operand_object *obj_desc,
 		 * hexadecimal as per the ACPI specification. The only exception (as
 		 * of ACPI 3.0) is that the to_integer() operator allows both decimal
 		 * and hexadecimal strings (hex prefixed with "0x").
+		 *
+		 * Explicit conversion is used only by to_integer.
+		 * All other string-to-integer conversions are implicit conversions.
 		 */
-		status = acpi_ut_strtoul64(ACPI_CAST_PTR(char, pointer),
-					   (acpi_gbl_integer_byte_width |
-					    flags), &result);
-		if (ACPI_FAILURE(status)) {
-			return_ACPI_STATUS(status);
+		if (implicit_conversion) {
+			result =
+			    acpi_ut_implicit_strtoul64(ACPI_CAST_PTR
+						       (char, pointer));
+		} else {
+			result =
+			    acpi_ut_explicit_strtoul64(ACPI_CAST_PTR
+						       (char, pointer));
 		}
 		break;
 
@@ -631,7 +637,7 @@ acpi_ex_convert_to_target_type(acpi_object_type destination_type,
 			 */
 			status =
 			    acpi_ex_convert_to_integer(source_desc, result_desc,
-						       ACPI_STRTOUL_BASE16);
+						       ACPI_IMPLICIT_CONVERSION);
 			break;
 
 		case ACPI_TYPE_STRING:
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index 1e7649ce0a7b..dbad3ebd7df5 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -330,7 +330,7 @@ acpi_ex_do_logical_op(u16 opcode,
 	case ACPI_TYPE_INTEGER:
 
 		status = acpi_ex_convert_to_integer(operand1, &local_operand1,
-						    ACPI_STRTOUL_BASE16);
+						    ACPI_IMPLICIT_CONVERSION);
 		break;
 
 	case ACPI_TYPE_STRING:
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index c4852429e2ff..1c7c9962b0de 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -415,7 +415,7 @@ acpi_ex_resolve_operands(u16 opcode,
 			 * Known as "Implicit Source Operand Conversion"
 			 */
 			status = acpi_ex_convert_to_integer(obj_desc, stack_ptr,
-							    ACPI_STRTOUL_BASE16);
+							    ACPI_IMPLICIT_CONVERSION);
 			if (ACPI_FAILURE(status)) {
 				if (status == AE_TYPE) {
 					ACPI_ERROR((AE_INFO,
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 5eb11b30a79e..09b6822aa5cc 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -99,7 +99,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action)
 {
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_status status = AE_OK;
-	u32 enable_mask;
+	u64 enable_mask;
 	u32 register_bit;
 
 	ACPI_FUNCTION_ENTRY();
@@ -214,7 +214,7 @@ acpi_status
 acpi_hw_get_gpe_status(struct acpi_gpe_event_info *gpe_event_info,
 		       acpi_event_status *event_status)
 {
-	u32 in_byte;
+	u64 in_byte;
 	u32 register_bit;
 	struct acpi_gpe_register_info *gpe_register_info;
 	acpi_event_status local_event_status = 0;
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index acb417b58bbb..aa6e00081915 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -220,16 +220,15 @@ acpi_hw_validate_register(struct acpi_generic_address *reg,
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Read from either memory or IO space. This is a 32-bit max
- *              version of acpi_read, used internally since the overhead of
- *              64-bit values is not needed.
+ * DESCRIPTION: Read from either memory or IO space. This is a 64-bit max
+ *              version of acpi_read.
  *
  * LIMITATIONS: <These limitations also apply to acpi_hw_write>
  *      space_ID must be system_memory or system_IO.
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
+acpi_status acpi_hw_read(u64 *value, struct acpi_generic_address *reg)
 {
 	u64 address;
 	u8 access_width;
@@ -244,17 +243,17 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 
 	/* Validate contents of the GAS register */
 
-	status = acpi_hw_validate_register(reg, 32, &address);
+	status = acpi_hw_validate_register(reg, 64, &address);
 	if (ACPI_FAILURE(status)) {
 		return (status);
 	}
 
 	/*
-	 * Initialize entire 32-bit return value to zero, convert access_width
+	 * Initialize entire 64-bit return value to zero, convert access_width
 	 * into number of bits based
 	 */
 	*value = 0;
-	access_width = acpi_hw_get_access_bit_width(address, reg, 32);
+	access_width = acpi_hw_get_access_bit_width(address, reg, 64);
 	bit_width = reg->bit_offset + reg->bit_width;
 	bit_offset = reg->bit_offset;
 
@@ -265,7 +264,7 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 	index = 0;
 	while (bit_width) {
 		if (bit_offset >= access_width) {
-			value32 = 0;
+			value64 = 0;
 			bit_offset -= access_width;
 		} else {
 			if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
@@ -276,7 +275,6 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 							ACPI_DIV_8
 							(access_width),
 							&value64, access_width);
-				value32 = (u32)value64;
 			} else {	/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
 				status = acpi_hw_read_port((acpi_io_address)
@@ -286,15 +284,16 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 							   (access_width),
 							   &value32,
 							   access_width);
+				value64 = (u64)value32;
 			}
 		}
 
 		/*
 		 * Use offset style bit writes because "Index * AccessWidth" is
-		 * ensured to be less than 32-bits by acpi_hw_validate_register().
+		 * ensured to be less than 64-bits by acpi_hw_validate_register().
 		 */
 		ACPI_SET_BITS(value, index * access_width,
-			      ACPI_MASK_BITS_ABOVE_32(access_width), value32);
+			      ACPI_MASK_BITS_ABOVE_64(access_width), value64);
 
 		bit_width -=
 		    bit_width > access_width ? access_width : bit_width;
@@ -302,8 +301,9 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_IO,
-			  "Read:  %8.8X width %2d from %8.8X%8.8X (%s)\n",
-			  *value, access_width, ACPI_FORMAT_UINT64(address),
+			  "Read:  %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n",
+			  ACPI_FORMAT_UINT64(*value), access_width,
+			  ACPI_FORMAT_UINT64(address),
 			  acpi_ut_get_region_name(reg->space_id)));
 
 	return (status);
@@ -318,20 +318,18 @@ acpi_status acpi_hw_read(u32 *value, struct acpi_generic_address *reg)
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Write to either memory or IO space. This is a 32-bit max
- *              version of acpi_write, used internally since the overhead of
- *              64-bit values is not needed.
+ * DESCRIPTION: Write to either memory or IO space. This is a 64-bit max
+ *              version of acpi_write.
  *
  ******************************************************************************/
 
-acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
+acpi_status acpi_hw_write(u64 value, struct acpi_generic_address *reg)
 {
 	u64 address;
 	u8 access_width;
 	u32 bit_width;
 	u8 bit_offset;
 	u64 value64;
-	u32 value32;
 	u8 index;
 	acpi_status status;
 
@@ -339,14 +337,14 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
 
 	/* Validate contents of the GAS register */
 
-	status = acpi_hw_validate_register(reg, 32, &address);
+	status = acpi_hw_validate_register(reg, 64, &address);
 	if (ACPI_FAILURE(status)) {
 		return (status);
 	}
 
 	/* Convert access_width into number of bits based */
 
-	access_width = acpi_hw_get_access_bit_width(address, reg, 32);
+	access_width = acpi_hw_get_access_bit_width(address, reg, 64);
 	bit_width = reg->bit_offset + reg->bit_width;
 	bit_offset = reg->bit_offset;
 
@@ -358,16 +356,15 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
 	while (bit_width) {
 		/*
 		 * Use offset style bit reads because "Index * AccessWidth" is
-		 * ensured to be less than 32-bits by acpi_hw_validate_register().
+		 * ensured to be less than 64-bits by acpi_hw_validate_register().
 		 */
-		value32 = ACPI_GET_BITS(&value, index * access_width,
-					ACPI_MASK_BITS_ABOVE_32(access_width));
+		value64 = ACPI_GET_BITS(&value, index * access_width,
+					ACPI_MASK_BITS_ABOVE_64(access_width));
 
 		if (bit_offset >= access_width) {
 			bit_offset -= access_width;
 		} else {
 			if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
-				value64 = (u64)value32;
 				status =
 				    acpi_os_write_memory((acpi_physical_address)
 							 address +
@@ -382,7 +379,7 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
 							    index *
 							    ACPI_DIV_8
 							    (access_width),
-							    value32,
+							    (u32)value64,
 							    access_width);
 			}
 		}
@@ -397,8 +394,9 @@ acpi_status acpi_hw_write(u32 value, struct acpi_generic_address *reg)
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_IO,
-			  "Wrote: %8.8X width %2d   to %8.8X%8.8X (%s)\n",
-			  value, access_width, ACPI_FORMAT_UINT64(address),
+			  "Wrote: %8.8X%8.8X width %2d   to %8.8X%8.8X (%s)\n",
+			  ACPI_FORMAT_UINT64(value), access_width,
+			  ACPI_FORMAT_UINT64(address),
 			  acpi_ut_get_region_name(reg->space_id)));
 
 	return (status);
@@ -526,6 +524,7 @@ acpi_status acpi_hw_write_pm1_control(u32 pm1a_control, u32 pm1b_control)
 acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value)
 {
 	u32 value = 0;
+	u64 value64;
 	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(hw_register_read);
@@ -564,12 +563,14 @@ acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value)
 	case ACPI_REGISTER_PM2_CONTROL:	/* 8-bit access */
 
 		status =
-		    acpi_hw_read(&value, &acpi_gbl_FADT.xpm2_control_block);
+		    acpi_hw_read(&value64, &acpi_gbl_FADT.xpm2_control_block);
+		value = (u32)value64;
 		break;
 
 	case ACPI_REGISTER_PM_TIMER:	/* 32-bit access */
 
-		status = acpi_hw_read(&value, &acpi_gbl_FADT.xpm_timer_block);
+		status = acpi_hw_read(&value64, &acpi_gbl_FADT.xpm_timer_block);
+		value = (u32)value64;
 		break;
 
 	case ACPI_REGISTER_SMI_COMMAND_BLOCK:	/* 8-bit access */
@@ -586,7 +587,7 @@ acpi_status acpi_hw_register_read(u32 register_id, u32 *return_value)
 	}
 
 	if (ACPI_SUCCESS(status)) {
-		*return_value = value;
+		*return_value = (u32)value;
 	}
 
 	return_ACPI_STATUS(status);
@@ -622,6 +623,7 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value)
 {
 	acpi_status status;
 	u32 read_value;
+	u64 read_value64;
 
 	ACPI_FUNCTION_TRACE(hw_register_write);
 
@@ -685,11 +687,12 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value)
 		 * as per the ACPI spec.
 		 */
 		status =
-		    acpi_hw_read(&read_value,
+		    acpi_hw_read(&read_value64,
 				 &acpi_gbl_FADT.xpm2_control_block);
 		if (ACPI_FAILURE(status)) {
 			goto exit;
 		}
+		read_value = (u32)read_value64;
 
 		/* Insert the bits to be preserved */
 
@@ -745,22 +748,25 @@ acpi_hw_read_multiple(u32 *value,
 {
 	u32 value_a = 0;
 	u32 value_b = 0;
+	u64 value64;
 	acpi_status status;
 
 	/* The first register is always required */
 
-	status = acpi_hw_read(&value_a, register_a);
+	status = acpi_hw_read(&value64, register_a);
 	if (ACPI_FAILURE(status)) {
 		return (status);
 	}
+	value_a = (u32)value64;
 
 	/* Second register is optional */
 
 	if (register_b->address) {
-		status = acpi_hw_read(&value_b, register_b);
+		status = acpi_hw_read(&value64, register_b);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
+		value_b = (u32)value64;
 	}
 
 	/*
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index b3c5d8c754bb..a2f4e25d45b1 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -94,6 +94,7 @@ ACPI_EXPORT_SYMBOL(acpi_get_timer_resolution)
 acpi_status acpi_get_timer(u32 * ticks)
 {
 	acpi_status status;
+	u64 timer_value;
 
 	ACPI_FUNCTION_TRACE(acpi_get_timer);
 
@@ -107,7 +108,14 @@ acpi_status acpi_get_timer(u32 * ticks)
 		return_ACPI_STATUS(AE_SUPPORT);
 	}
 
-	status = acpi_hw_read(ticks, &acpi_gbl_FADT.xpm_timer_block);
+	status = acpi_hw_read(&timer_value, &acpi_gbl_FADT.xpm_timer_block);
+	if (ACPI_SUCCESS(status)) {
+
+		/* ACPI PM Timer is defined to be 32 bits (PM_TMR_LEN) */
+
+		*ticks = (u32)timer_value;
+	}
+
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index 34684ae89981..b3c6e439933c 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -125,76 +125,12 @@ ACPI_EXPORT_SYMBOL(acpi_reset)
  ******************************************************************************/
 acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 {
-	u32 value_lo;
-	u32 value_hi;
-	u32 width;
-	u64 address;
 	acpi_status status;
 
 	ACPI_FUNCTION_NAME(acpi_read);
 
-	if (!return_value) {
-		return (AE_BAD_PARAMETER);
-	}
-
-	/* Validate contents of the GAS register. Allow 64-bit transfers */
-
-	status = acpi_hw_validate_register(reg, 64, &address);
-	if (ACPI_FAILURE(status)) {
-		return (status);
-	}
-
-	/*
-	 * Two address spaces supported: Memory or I/O. PCI_Config is
-	 * not supported here because the GAS structure is insufficient
-	 */
-	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
-		status = acpi_os_read_memory((acpi_physical_address)
-					     address, return_value,
-					     reg->bit_width);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
-
-		value_lo = 0;
-		value_hi = 0;
-
-		width = reg->bit_width;
-		if (width == 64) {
-			width = 32;	/* Break into two 32-bit transfers */
-		}
-
-		status = acpi_hw_read_port((acpi_io_address)
-					   address, &value_lo, width);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-
-		if (reg->bit_width == 64) {
-
-			/* Read the top 32 bits */
-
-			status = acpi_hw_read_port((acpi_io_address)
-						   (address + 4), &value_hi,
-						   32);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-		}
-
-		/* Set the return value only if status is AE_OK */
-
-		*return_value = (value_lo | ((u64)value_hi << 32));
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_IO,
-			  "Read:  %8.8X%8.8X width %2d from %8.8X%8.8X (%s)\n",
-			  ACPI_FORMAT_UINT64(*return_value), reg->bit_width,
-			  ACPI_FORMAT_UINT64(address),
-			  acpi_ut_get_region_name(reg->space_id)));
-
-	return (AE_OK);
+	status = acpi_hw_read(return_value, reg);
+	return (status);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_read)
@@ -213,59 +149,11 @@ ACPI_EXPORT_SYMBOL(acpi_read)
  ******************************************************************************/
 acpi_status acpi_write(u64 value, struct acpi_generic_address *reg)
 {
-	u32 width;
-	u64 address;
 	acpi_status status;
 
 	ACPI_FUNCTION_NAME(acpi_write);
 
-	/* Validate contents of the GAS register. Allow 64-bit transfers */
-
-	status = acpi_hw_validate_register(reg, 64, &address);
-	if (ACPI_FAILURE(status)) {
-		return (status);
-	}
-
-	/*
-	 * Two address spaces supported: Memory or IO. PCI_Config is
-	 * not supported here because the GAS structure is insufficient
-	 */
-	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
-		status = acpi_os_write_memory((acpi_physical_address)
-					      address, value, reg->bit_width);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
-
-		width = reg->bit_width;
-		if (width == 64) {
-			width = 32;	/* Break into two 32-bit transfers */
-		}
-
-		status = acpi_hw_write_port((acpi_io_address)
-					    address, ACPI_LODWORD(value),
-					    width);
-		if (ACPI_FAILURE(status)) {
-			return (status);
-		}
-
-		if (reg->bit_width == 64) {
-			status = acpi_hw_write_port((acpi_io_address)
-						    (address + 4),
-						    ACPI_HIDWORD(value), 32);
-			if (ACPI_FAILURE(status)) {
-				return (status);
-			}
-		}
-	}
-
-	ACPI_DEBUG_PRINT((ACPI_DB_IO,
-			  "Wrote: %8.8X%8.8X width %2d   to %8.8X%8.8X (%s)\n",
-			  ACPI_FORMAT_UINT64(value), reg->bit_width,
-			  ACPI_FORMAT_UINT64(address),
-			  acpi_ut_get_region_name(reg->space_id)));
-
+	status = acpi_hw_write(value, reg);
 	return (status);
 }
 
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
index e4a7da8a11f0..539d775bbc92 100644
--- a/drivers/acpi/acpica/nsconvert.c
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -78,8 +78,8 @@ acpi_ns_convert_to_integer(union acpi_operand_object *original_object,
 
 		/* String-to-Integer conversion */
 
-		status = acpi_ut_strtoul64(original_object->string.pointer,
-					   acpi_gbl_integer_byte_width, &value);
+		status =
+		    acpi_ut_strtoul64(original_object->string.pointer, &value);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 26ad596c973e..5ecb8d2e6834 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -173,10 +173,13 @@ acpi_status ACPI_INIT_FUNCTION acpi_reallocate_root_table(void)
 	ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
 
 	/*
-	 * Only reallocate the root table if the host provided a static buffer
-	 * for the table array in the call to acpi_initialize_tables.
+	 * If there are tables unverified, it is required to reallocate the
+	 * root table list to clean up invalid table entries. Otherwise only
+	 * reallocate the root table list if the host provided a static buffer
+	 * for the table array in the call to acpi_initialize_tables().
 	 */
-	if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
+	if ((acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) &&
+	    acpi_gbl_enable_table_validation) {
 		return_ACPI_STATUS(AE_SUPPORT);
 	}
 
diff --git a/drivers/acpi/acpica/utstrsuppt.c b/drivers/acpi/acpica/utstrsuppt.c
new file mode 100644
index 000000000000..965fb5cec94f
--- /dev/null
+++ b/drivers/acpi/acpica/utstrsuppt.c
@@ -0,0 +1,438 @@
+/*******************************************************************************
+ *
+ * Module Name: utstrsuppt - Support functions for string-to-integer conversion
+ *
+ ******************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2017, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utstrsuppt")
+
+/* Local prototypes */
+static acpi_status
+acpi_ut_insert_digit(u64 *accumulated_value, u32 base, int ascii_digit);
+
+static acpi_status
+acpi_ut_strtoul_multiply64(u64 multiplicand, u64 multiplier, u64 *out_product);
+
+static acpi_status
+acpi_ut_strtoul_add64(u64 addend1, u64 addend2, u64 *out_sum);
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_convert_octal_string
+ *
+ * PARAMETERS:  string                  - Null terminated input string
+ *              return_value_ptr        - Where the converted value is returned
+ *
+ * RETURN:      Status and 64-bit converted integer
+ *
+ * DESCRIPTION: Performs a base 8 conversion of the input string to an
+ *              integer value, either 32 or 64 bits.
+ *
+ * NOTE:        Maximum 64-bit unsigned octal value is 01777777777777777777777
+ *              Maximum 32-bit unsigned octal value is 037777777777
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_convert_octal_string(char *string, u64 *return_value_ptr)
+{
+	u64 accumulated_value = 0;
+	acpi_status status = AE_OK;
+
+	/* Convert each ASCII byte in the input string */
+
+	while (*string) {
+
+		/* Character must be ASCII 0-7, otherwise terminate with no error */
+
+		if (!(ACPI_IS_OCTAL_DIGIT(*string))) {
+			break;
+		}
+
+		/* Convert and insert this octal digit into the accumulator */
+
+		status = acpi_ut_insert_digit(&accumulated_value, 8, *string);
+		if (ACPI_FAILURE(status)) {
+			status = AE_OCTAL_OVERFLOW;
+			break;
+		}
+
+		string++;
+	}
+
+	/* Always return the value that has been accumulated */
+
+	*return_value_ptr = accumulated_value;
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_convert_decimal_string
+ *
+ * PARAMETERS:  string                  - Null terminated input string
+ *              return_value_ptr        - Where the converted value is returned
+ *
+ * RETURN:      Status and 64-bit converted integer
+ *
+ * DESCRIPTION: Performs a base 10 conversion of the input string to an
+ *              integer value, either 32 or 64 bits.
+ *
+ * NOTE:        Maximum 64-bit unsigned decimal value is 18446744073709551615
+ *              Maximum 32-bit unsigned decimal value is 4294967295
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_convert_decimal_string(char *string, u64 *return_value_ptr)
+{
+	u64 accumulated_value = 0;
+	acpi_status status = AE_OK;
+
+	/* Convert each ASCII byte in the input string */
+
+	while (*string) {
+
+		/* Character must be ASCII 0-9, otherwise terminate with no error */
+
+		if (!isdigit(*string)) {
+			break;
+		}
+
+		/* Convert and insert this decimal digit into the accumulator */
+
+		status = acpi_ut_insert_digit(&accumulated_value, 10, *string);
+		if (ACPI_FAILURE(status)) {
+			status = AE_DECIMAL_OVERFLOW;
+			break;
+		}
+
+		string++;
+	}
+
+	/* Always return the value that has been accumulated */
+
+	*return_value_ptr = accumulated_value;
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_convert_hex_string
+ *
+ * PARAMETERS:  string                  - Null terminated input string
+ *              return_value_ptr        - Where the converted value is returned
+ *
+ * RETURN:      Status and 64-bit converted integer
+ *
+ * DESCRIPTION: Performs a base 16 conversion of the input string to an
+ *              integer value, either 32 or 64 bits.
+ *
+ * NOTE:        Maximum 64-bit unsigned hex value is 0xFFFFFFFFFFFFFFFF
+ *              Maximum 32-bit unsigned hex value is 0xFFFFFFFF
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ut_convert_hex_string(char *string, u64 *return_value_ptr)
+{
+	u64 accumulated_value = 0;
+	acpi_status status = AE_OK;
+
+	/* Convert each ASCII byte in the input string */
+
+	while (*string) {
+
+		/* Must be ASCII A-F, a-f, or 0-9, otherwise terminate with no error */
+
+		if (!isxdigit(*string)) {
+			break;
+		}
+
+		/* Convert and insert this hex digit into the accumulator */
+
+		status = acpi_ut_insert_digit(&accumulated_value, 16, *string);
+		if (ACPI_FAILURE(status)) {
+			status = AE_HEX_OVERFLOW;
+			break;
+		}
+
+		string++;
+	}
+
+	/* Always return the value that has been accumulated */
+
+	*return_value_ptr = accumulated_value;
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_remove_leading_zeros
+ *
+ * PARAMETERS:  string                  - Pointer to input ASCII string
+ *
+ * RETURN:      Next character after any leading zeros. This character may be
+ *              used by the caller to detect end-of-string.
+ *
+ * DESCRIPTION: Remove any leading zeros in the input string. Return the
+ *              next character after the final ASCII zero to enable the caller
+ *              to check for the end of the string (NULL terminator).
+ *
+ ******************************************************************************/
+
+char acpi_ut_remove_leading_zeros(char **string)
+{
+
+	while (**string == ACPI_ASCII_ZERO) {
+		*string += 1;
+	}
+
+	return (**string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_remove_whitespace
+ *
+ * PARAMETERS:  string                  - Pointer to input ASCII string
+ *
+ * RETURN:      Next character after any whitespace. This character may be
+ *              used by the caller to detect end-of-string.
+ *
+ * DESCRIPTION: Remove any leading whitespace in the input string. Return the
+ *              next character after the final ASCII zero to enable the caller
+ *              to check for the end of the string (NULL terminator).
+ *
+ ******************************************************************************/
+
+char acpi_ut_remove_whitespace(char **string)
+{
+
+	while (isspace((u8)**string)) {
+		*string += 1;
+	}
+
+	return (**string);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_detect_hex_prefix
+ *
+ * PARAMETERS:  string                  - Pointer to input ASCII string
+ *
+ * RETURN:      TRUE if a "0x" prefix was found at the start of the string
+ *
+ * DESCRIPTION: Detect and remove a hex "0x" prefix
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_detect_hex_prefix(char **string)
+{
+
+	if ((**string == ACPI_ASCII_ZERO) &&
+	    (tolower((int)*(*string + 1)) == 'x')) {
+		*string += 2;	/* Go past the leading 0x */
+		return (TRUE);
+	}
+
+	return (FALSE);		/* Not a hex string */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_detect_octal_prefix
+ *
+ * PARAMETERS:  string                  - Pointer to input ASCII string
+ *
+ * RETURN:      True if an octal "0" prefix was found at the start of the
+ *              string
+ *
+ * DESCRIPTION: Detect and remove an octal prefix (zero)
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_detect_octal_prefix(char **string)
+{
+
+	if (**string == ACPI_ASCII_ZERO) {
+		*string += 1;	/* Go past the leading 0 */
+		return (TRUE);
+	}
+
+	return (FALSE);		/* Not an octal string */
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_insert_digit
+ *
+ * PARAMETERS:  accumulated_value       - Current value of the integer value
+ *                                        accumulator. The new value is
+ *                                        returned here.
+ *              base                    - Radix, either 8/10/16
+ *              ascii_digit             - ASCII single digit to be inserted
+ *
+ * RETURN:      Status and result of the convert/insert operation. The only
+ *              possible returned exception code is numeric overflow of
+ *              either the multiply or add conversion operations.
+ *
+ * DESCRIPTION: Generic conversion and insertion function for all bases:
+ *
+ *              1) Multiply the current accumulated/converted value by the
+ *              base in order to make room for the new character.
+ *
+ *              2) Convert the new character to binary and add it to the
+ *              current accumulated value.
+ *
+ *              Note: The only possible exception indicates an integer
+ *              overflow (AE_NUMERIC_OVERFLOW)
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_insert_digit(u64 *accumulated_value, u32 base, int ascii_digit)
+{
+	acpi_status status;
+	u64 product;
+
+	/* Make room in the accumulated value for the incoming digit */
+
+	status = acpi_ut_strtoul_multiply64(*accumulated_value, base, &product);
+	if (ACPI_FAILURE(status)) {
+		return (status);
+	}
+
+	/* Add in the new digit, and store the sum to the accumulated value */
+
+	status =
+	    acpi_ut_strtoul_add64(product,
+				  acpi_ut_ascii_char_to_hex(ascii_digit),
+				  accumulated_value);
+
+	return (status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_strtoul_multiply64
+ *
+ * PARAMETERS:  multiplicand            - Current accumulated converted integer
+ *              multiplier              - Base/Radix
+ *              out_product             - Where the product is returned
+ *
+ * RETURN:      Status and 64-bit product
+ *
+ * DESCRIPTION: Multiply two 64-bit values, with checking for 64-bit overflow as
+ *              well as 32-bit overflow if necessary (if the current global
+ *              integer width is 32).
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ut_strtoul_multiply64(u64 multiplicand, u64 multiplier, u64 *out_product)
+{
+	u64 val;
+
+	/* Exit if either operand is zero */
+
+	*out_product = 0;
+	if (!multiplicand || !multiplier) {
+		return (AE_OK);
+	}
+
+	/* Check for 64-bit overflow before the actual multiplication */
+
+	acpi_ut_short_divide(ACPI_UINT64_MAX, (u32)multiplier, &val, NULL);
+	if (multiplicand > val) {
+		return (AE_NUMERIC_OVERFLOW);
+	}
+
+	val = multiplicand * multiplier;
+
+	/* Check for 32-bit overflow if necessary */
+
+	if ((acpi_gbl_integer_bit_width == 32) && (val > ACPI_UINT32_MAX)) {
+		return (AE_NUMERIC_OVERFLOW);
+	}
+
+	*out_product = val;
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_strtoul_add64
+ *
+ * PARAMETERS:  addend1                 - Current accumulated converted integer
+ *              addend2                 - New hex value/char
+ *              out_sum                 - Where sum is returned (Accumulator)
+ *
+ * RETURN:      Status and 64-bit sum
+ *
+ * DESCRIPTION: Add two 64-bit values, with checking for 64-bit overflow as
+ *              well as 32-bit overflow if necessary (if the current global
+ *              integer width is 32).
+ *
+ ******************************************************************************/
+
+static acpi_status acpi_ut_strtoul_add64(u64 addend1, u64 addend2, u64 *out_sum)
+{
+	u64 sum;
+
+	/* Check for 64-bit overflow before the actual addition */
+
+	if ((addend1 > 0) && (addend2 > (ACPI_UINT64_MAX - addend1))) {
+		return (AE_NUMERIC_OVERFLOW);
+	}
+
+	sum = addend1 + addend2;
+
+	/* Check for 32-bit overflow if necessary */
+
+	if ((acpi_gbl_integer_bit_width == 32) && (sum > ACPI_UINT32_MAX)) {
+		return (AE_NUMERIC_OVERFLOW);
+	}
+
+	*out_sum = sum;
+	return (AE_OK);
+}
diff --git a/drivers/acpi/acpica/utstrtoul64.c b/drivers/acpi/acpica/utstrtoul64.c
index 9633ee142855..e2067dcb9389 100644
--- a/drivers/acpi/acpica/utstrtoul64.c
+++ b/drivers/acpi/acpica/utstrtoul64.c
@@ -1,6 +1,7 @@
 /*******************************************************************************
  *
- * Module Name: utstrtoul64 - string to 64-bit integer support
+ * Module Name: utstrtoul64 - String-to-integer conversion support for both
+ *                            64-bit and 32-bit integers
  *
  ******************************************************************************/
 
@@ -44,304 +45,319 @@
 #include <acpi/acpi.h>
 #include "accommon.h"
 
-/*******************************************************************************
- *
- * The functions in this module satisfy the need for 64-bit string-to-integer
- * conversions on both 32-bit and 64-bit platforms.
- *
- ******************************************************************************/
-
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utstrtoul64")
 
-/* Local prototypes */
-static u64 acpi_ut_strtoul_base10(char *string, u32 flags);
-
-static u64 acpi_ut_strtoul_base16(char *string, u32 flags);
-
 /*******************************************************************************
  *
- * String conversion rules as written in the ACPI specification. The error
- * conditions and behavior are different depending on the type of conversion.
- *
- *
- * Implicit data type conversion: string-to-integer
- * --------------------------------------------------
- *
- * Base is always 16. This is the ACPI_STRTOUL_BASE16 case.
- *
- * Example:
- *      Add ("BA98", Arg0, Local0)
- *
- * The integer is initialized to the value zero.
- * The ASCII string is interpreted as a hexadecimal constant.
+ * This module contains the top-level string to 64/32-bit unsigned integer
+ * conversion functions:
  *
- *  1)  A "0x" prefix is not allowed. However, ACPICA allows this for
- *      compatibility with previous ACPICA. (NO ERROR)
+ *  1) A standard strtoul() function that supports 64-bit integers, base
+ *     8/10/16, with integer overflow support. This is used mainly by the
+ *     iASL compiler, which implements tighter constraints on integer
+ *     constants than the runtime (interpreter) integer-to-string conversions.
+ *  2) Runtime "Explicit conversion" as defined in the ACPI specification.
+ *  3) Runtime "Implicit conversion" as defined in the ACPI specification.
  *
- *  2)  Terminates when the size of an integer is reached (32 or 64 bits).
- *      (NO ERROR)
+ * Current users of this module:
  *
- *  3)  The first non-hex character terminates the conversion without error.
- *      (NO ERROR)
- *
- *  4)  Conversion of a null (zero-length) string to an integer is not
- *      allowed. However, ACPICA allows this for compatibility with previous
- *      ACPICA. This conversion returns the value 0. (NO ERROR)
- *
- *
- * Explicit data type conversion:  to_integer() with string operand
- * ---------------------------------------------------------------
- *
- * Base is either 10 (default) or 16 (with 0x prefix)
- *
- * Examples:
- *      to_integer ("1000")
- *      to_integer ("0xABCD")
- *
- *  1)  Can be (must be) either a decimal or hexadecimal numeric string.
- *      A hex value must be prefixed by "0x" or it is interpreted as a decimal.
+ *  iASL        - Preprocessor (constants and math expressions)
+ *  iASL        - Main parser, conversion of constants to integers
+ *  iASL        - Data Table Compiler parser (constants and math expressions)
+ *  interpreter - Implicit and explicit conversions, GPE method names
+ *  interpreter - Repair code for return values from predefined names
+ *  debugger    - Command line input string conversion
+ *  acpi_dump   - ACPI table physical addresses
+ *  acpi_exec   - Support for namespace overrides
  *
- *  2)  The value must not exceed the maximum of an integer value. ACPI spec
- *      states the behavior is "unpredictable", so ACPICA matches the behavior
- *      of the implicit conversion case.(NO ERROR)
+ * Notes concerning users of these interfaces:
  *
- *  3)  Behavior on the first non-hex character is not specified by the ACPI
- *      spec, so ACPICA matches the behavior of the implicit conversion case
- *      and terminates. (NO ERROR)
+ * acpi_gbl_integer_byte_width is used to set the 32/64 bit limit for explicit
+ * and implicit conversions. This global must be set to the proper width.
+ * For the core ACPICA code, the width depends on the DSDT version. For the
+ * acpi_ut_strtoul64 interface, all conversions are 64 bits. This interface is
+ * used primarily for iASL, where the default width is 64 bits for all parsers,
+ * but error checking is performed later to flag cases where a 64-bit constant
+ * is wrongly defined in a 32-bit DSDT/SSDT.
  *
- *  4)  A null (zero-length) string is illegal.
- *      However, ACPICA allows this for compatibility with previous ACPICA.
- *      This conversion returns the value 0. (NO ERROR)
+ * In ACPI, the only place where octal numbers are supported is within
+ * the ASL language itself. This is implemented via the main acpi_ut_strtoul64
+ * interface. According the ACPI specification, there is no ACPI runtime
+ * support (explicit/implicit) for octal string conversions.
  *
  ******************************************************************************/
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_strtoul64
  *
- * PARAMETERS:  string                  - Null terminated input string
- *              flags                   - Conversion info, see below
+ * PARAMETERS:  string                  - Null terminated input string,
+ *                                        must be a valid pointer
  *              return_value            - Where the converted integer is
- *                                        returned
- *
- * RETURN:      Status and Converted value
+ *                                        returned. Must be a valid pointer
  *
- * DESCRIPTION: Convert a string into an unsigned value. Performs either a
- *              32-bit or 64-bit conversion, depending on the input integer
- *              size in Flags (often the current mode of the interpreter).
+ * RETURN:      Status and converted integer. Returns an exception on a
+ *              64-bit numeric overflow
  *
- * Values for Flags:
- *      ACPI_STRTOUL_32BIT      - Max integer value is 32 bits
- *      ACPI_STRTOUL_64BIT      - Max integer value is 64 bits
- *      ACPI_STRTOUL_BASE16     - Input string is hexadecimal. Default
- *                                is 10/16 based on string prefix (0x).
+ * DESCRIPTION: Convert a string into an unsigned integer. Always performs a
+ *              full 64-bit conversion, regardless of the current global
+ *              integer width. Supports Decimal, Hex, and Octal strings.
  *
- * NOTES:
- *   Negative numbers are not supported, as they are not supported by ACPI.
+ * Current users of this function:
  *
- *   Supports only base 16 or base 10 strings/values. Does not
- *   support Octal strings, as these are not supported by ACPI.
- *
- * Current users of this support:
- *
- *  interpreter - Implicit and explicit conversions, GPE method names
- *  debugger    - Command line input string conversion
- *  iASL        - Main parser, conversion of constants to integers
- *  iASL        - Data Table Compiler parser (constant math expressions)
- *  iASL        - Preprocessor (constant math expressions)
- *  acpi_dump   - Input table addresses
- *  acpi_exec   - Testing of the acpi_ut_strtoul64 function
- *
- * Note concerning callers:
- *   acpi_gbl_integer_byte_width can be used to set the 32/64 limit. If used,
- *   this global should be set to the proper width. For the core ACPICA code,
- *   this width depends on the DSDT version. For iASL, the default byte
- *   width is always 8 for the parser, but error checking is performed later
- *   to flag cases where a 64-bit constant is defined in a 32-bit DSDT/SSDT.
+ *  iASL        - Preprocessor (constants and math expressions)
+ *  iASL        - Main ASL parser, conversion of ASL constants to integers
+ *  iASL        - Data Table Compiler parser (constants and math expressions)
+ *  interpreter - Repair code for return values from predefined names
+ *  acpi_dump   - ACPI table physical addresses
+ *  acpi_exec   - Support for namespace overrides
  *
  ******************************************************************************/
-
-acpi_status acpi_ut_strtoul64(char *string, u32 flags, u64 *return_value)
+acpi_status acpi_ut_strtoul64(char *string, u64 *return_value)
 {
 	acpi_status status = AE_OK;
-	u32 base;
+	u8 original_bit_width;
+	u32 base = 10;		/* Default is decimal */
 
 	ACPI_FUNCTION_TRACE_STR(ut_strtoul64, string);
 
-	/* Parameter validation */
-
-	if (!string || !return_value) {
-		return_ACPI_STATUS(AE_BAD_PARAMETER);
-	}
-
 	*return_value = 0;
 
-	/* Check for zero-length string, returns 0 */
+	/* A NULL return string returns a value of zero */
 
 	if (*string == 0) {
 		return_ACPI_STATUS(AE_OK);
 	}
 
-	/* Skip over any white space at start of string */
-
-	while (isspace((int)*string)) {
-		string++;
-	}
-
-	/* End of string? return 0 */
-
-	if (*string == 0) {
+	if (!acpi_ut_remove_whitespace(&string)) {
 		return_ACPI_STATUS(AE_OK);
 	}
 
 	/*
-	 * 1) The "0x" prefix indicates base 16. Per the ACPI specification,
-	 * the "0x" prefix is only allowed for implicit (non-strict) conversions.
-	 * However, we always allow it for compatibility with older ACPICA.
+	 * 1) Check for a hex constant. A "0x" prefix indicates base 16.
 	 */
-	if ((*string == ACPI_ASCII_ZERO) &&
-	    (tolower((int)*(string + 1)) == 'x')) {
-		string += 2;	/* Go past the 0x */
-		if (*string == 0) {
-			return_ACPI_STATUS(AE_OK);	/* Return value 0 */
-		}
-
+	if (acpi_ut_detect_hex_prefix(&string)) {
 		base = 16;
 	}
 
-	/* 2) Force to base 16 (implicit conversion case) */
-
-	else if (flags & ACPI_STRTOUL_BASE16) {
-		base = 16;
+	/*
+	 * 2) Check for an octal constant, defined to be a leading zero
+	 * followed by sequence of octal digits (0-7)
+	 */
+	else if (acpi_ut_detect_octal_prefix(&string)) {
+		base = 8;
 	}
 
-	/* 3) Default fallback is to Base 10 */
-
-	else {
-		base = 10;
+	if (!acpi_ut_remove_leading_zeros(&string)) {
+		return_ACPI_STATUS(AE_OK);	/* Return value 0 */
 	}
 
-	/* Skip all leading zeros */
+	/*
+	 * Force a full 64-bit conversion. The caller (usually iASL) must
+	 * check for a 32-bit overflow later as necessary (If current mode
+	 * is 32-bit, meaning a 32-bit DSDT).
+	 */
+	original_bit_width = acpi_gbl_integer_bit_width;
+	acpi_gbl_integer_bit_width = 64;
 
-	while (*string == ACPI_ASCII_ZERO) {
-		string++;
-		if (*string == 0) {
-			return_ACPI_STATUS(AE_OK);	/* Return value 0 */
-		}
+	/*
+	 * Perform the base 8, 10, or 16 conversion. A 64-bit numeric overflow
+	 * will return an exception (to allow iASL to flag the statement).
+	 */
+	switch (base) {
+	case 8:
+		status = acpi_ut_convert_octal_string(string, return_value);
+		break;
+
+	case 10:
+		status = acpi_ut_convert_decimal_string(string, return_value);
+		break;
+
+	case 16:
+	default:
+		status = acpi_ut_convert_hex_string(string, return_value);
+		break;
 	}
 
-	/* Perform the base 16 or 10 conversion */
-
-	if (base == 16) {
-		*return_value = acpi_ut_strtoul_base16(string, flags);
-	} else {
-		*return_value = acpi_ut_strtoul_base10(string, flags);
-	}
+	/* Only possible exception from above is a 64-bit overflow */
 
+	acpi_gbl_integer_bit_width = original_bit_width;
 	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_strtoul_base10
+ * FUNCTION:    acpi_ut_implicit_strtoul64
+ *
+ * PARAMETERS:  string                  - Null terminated input string,
+ *                                        must be a valid pointer
+ *
+ * RETURN:      Converted integer
+ *
+ * DESCRIPTION: Perform a 64-bit conversion with restrictions placed upon
+ *              an "implicit conversion" by the ACPI specification. Used by
+ *              many ASL operators that require an integer operand, and support
+ *              an automatic (implicit) conversion from a string operand
+ *              to the final integer operand. The major restriction is that
+ *              only hex strings are supported.
+ *
+ * -----------------------------------------------------------------------------
+ *
+ * Base is always 16, either with or without the 0x prefix. Decimal and
+ * Octal strings are not supported, as per the ACPI specification.
+ *
+ * Examples (both are hex values):
+ *      Add ("BA98", Arg0, Local0)
+ *      Subtract ("0x12345678", Arg1, Local1)
+ *
+ * Conversion rules as extracted from the ACPI specification:
+ *
+ *  The converted integer is initialized to the value zero.
+ *  The ASCII string is always interpreted as a hexadecimal constant.
+ *
+ *  1)  According to the ACPI specification, a "0x" prefix is not allowed.
+ *      However, ACPICA allows this as an ACPI extension on general
+ *      principle. (NO ERROR)
+ *
+ *  2)  The conversion terminates when the size of an integer is reached
+ *      (32 or 64 bits). There are no numeric overflow conditions. (NO ERROR)
+ *
+ *  3)  The first non-hex character terminates the conversion and returns
+ *      the current accumulated value of the converted integer (NO ERROR).
  *
- * PARAMETERS:  string                  - Null terminated input string
- *              flags                   - Conversion info
+ *  4)  Conversion of a null (zero-length) string to an integer is
+ *      technically not allowed. However, ACPICA allows this as an ACPI
+ *      extension. The conversion returns the value 0. (NO ERROR)
  *
- * RETURN:      64-bit converted integer
+ * NOTE: There are no error conditions returned by this function. At
+ * the minimum, a value of zero is returned.
  *
- * DESCRIPTION: Performs a base 10 conversion of the input string to an
- *              integer value, either 32 or 64 bits.
- *              Note: String must be valid and non-null.
+ * Current users of this function:
+ *
+ *  interpreter - All runtime implicit conversions, as per ACPI specification
+ *  iASL        - Data Table Compiler parser (constants and math expressions)
  *
  ******************************************************************************/
 
-static u64 acpi_ut_strtoul_base10(char *string, u32 flags)
+u64 acpi_ut_implicit_strtoul64(char *string)
 {
-	int ascii_digit;
-	u64 next_value;
-	u64 return_value = 0;
-
-	/* Main loop: convert each ASCII byte in the input string */
-
-	while (*string) {
-		ascii_digit = *string;
-		if (!isdigit(ascii_digit)) {
-
-			/* Not ASCII 0-9, terminate */
-
-			goto exit;
-		}
-
-		/* Convert and insert (add) the decimal digit */
+	u64 converted_integer = 0;
 
-		acpi_ut_short_multiply(return_value, 10, &next_value);
-		next_value += (ascii_digit - ACPI_ASCII_ZERO);
+	ACPI_FUNCTION_TRACE_STR(ut_implicit_strtoul64, string);
 
-		/* Check for overflow (32 or 64 bit) - return current converted value */
+	if (!acpi_ut_remove_whitespace(&string)) {
+		return_VALUE(0);
+	}
 
-		if (((flags & ACPI_STRTOUL_32BIT) && (next_value > ACPI_UINT32_MAX)) || (next_value < return_value)) {	/* 64-bit overflow case */
-			goto exit;
-		}
+	/*
+	 * Per the ACPI specification, only hexadecimal is supported for
+	 * implicit conversions, and the "0x" prefix is "not allowed".
+	 * However, allow a "0x" prefix as an ACPI extension.
+	 */
+	acpi_ut_detect_hex_prefix(&string);
 
-		return_value = next_value;
-		string++;
+	if (!acpi_ut_remove_leading_zeros(&string)) {
+		return_VALUE(0);
 	}
 
-exit:
-	return (return_value);
+	/*
+	 * Ignore overflow as per the ACPI specification. This is implemented by
+	 * ignoring the return status from the conversion function called below.
+	 * On overflow, the input string is simply truncated.
+	 */
+	acpi_ut_convert_hex_string(string, &converted_integer);
+	return_VALUE(converted_integer);
 }
 
 /*******************************************************************************
  *
- * FUNCTION:    acpi_ut_strtoul_base16
+ * FUNCTION:    acpi_ut_explicit_strtoul64
+ *
+ * PARAMETERS:  string                  - Null terminated input string,
+ *                                        must be a valid pointer
  *
- * PARAMETERS:  string                  - Null terminated input string
- *              flags                   - conversion info
+ * RETURN:      Converted integer
  *
- * RETURN:      64-bit converted integer
+ * DESCRIPTION: Perform a 64-bit conversion with the restrictions placed upon
+ *              an "explicit conversion" by the ACPI specification. The
+ *              main restriction is that only hex and decimal are supported.
  *
- * DESCRIPTION: Performs a base 16 conversion of the input string to an
- *              integer value, either 32 or 64 bits.
- *              Note: String must be valid and non-null.
+ * -----------------------------------------------------------------------------
+ *
+ * Base is either 10 (default) or 16 (with 0x prefix). Octal (base 8) strings
+ * are not supported, as per the ACPI specification.
+ *
+ * Examples:
+ *      to_integer ("1000")     Decimal
+ *      to_integer ("0xABCD")   Hex
+ *
+ * Conversion rules as extracted from the ACPI specification:
+ *
+ *  1)  The input string is either a decimal or hexadecimal numeric string.
+ *      A hex value must be prefixed by "0x" or it is interpreted as decimal.
+ *
+ *  2)  The value must not exceed the maximum of an integer value
+ *      (32 or 64 bits). The ACPI specification states the behavior is
+ *      "unpredictable", so ACPICA matches the behavior of the implicit
+ *      conversion case. There are no numeric overflow conditions. (NO ERROR)
+ *
+ *  3)  Behavior on the first non-hex character is not defined by the ACPI
+ *      specification (for the to_integer operator), so ACPICA matches the
+ *      behavior of the implicit conversion case. It terminates the
+ *      conversion and returns the current accumulated value of the converted
+ *      integer. (NO ERROR)
+ *
+ *  4)  Conversion of a null (zero-length) string to an integer is
+ *      technically not allowed. However, ACPICA allows this as an ACPI
+ *      extension. The conversion returns the value 0. (NO ERROR)
+ *
+ * NOTE: There are no error conditions returned by this function. At the
+ * minimum, a value of zero is returned.
+ *
+ * Current users of this function:
+ *
+ *  interpreter - Runtime ASL to_integer operator, as per the ACPI specification
  *
  ******************************************************************************/
 
-static u64 acpi_ut_strtoul_base16(char *string, u32 flags)
+u64 acpi_ut_explicit_strtoul64(char *string)
 {
-	int ascii_digit;
-	u32 valid_digits = 1;
-	u64 return_value = 0;
-
-	/* Main loop: convert each ASCII byte in the input string */
+	u64 converted_integer = 0;
+	u32 base = 10;		/* Default is decimal */
 
-	while (*string) {
+	ACPI_FUNCTION_TRACE_STR(ut_explicit_strtoul64, string);
 
-		/* Check for overflow (32 or 64 bit) - return current converted value */
-
-		if ((valid_digits > 16) ||
-		    ((valid_digits > 8) && (flags & ACPI_STRTOUL_32BIT))) {
-			goto exit;
-		}
-
-		ascii_digit = *string;
-		if (!isxdigit(ascii_digit)) {
-
-			/* Not Hex ASCII A-F, a-f, or 0-9, terminate */
-
-			goto exit;
-		}
+	if (!acpi_ut_remove_whitespace(&string)) {
+		return_VALUE(0);
+	}
 
-		/* Convert and insert the hex digit */
+	/*
+	 * Only Hex and Decimal are supported, as per the ACPI specification.
+	 * A "0x" prefix indicates hex; otherwise decimal is assumed.
+	 */
+	if (acpi_ut_detect_hex_prefix(&string)) {
+		base = 16;
+	}
 
-		acpi_ut_short_shift_left(return_value, 4, &return_value);
-		return_value |= acpi_ut_ascii_char_to_hex(ascii_digit);
+	if (!acpi_ut_remove_leading_zeros(&string)) {
+		return_VALUE(0);
+	}
 
-		string++;
-		valid_digits++;
+	/*
+	 * Ignore overflow as per the ACPI specification. This is implemented by
+	 * ignoring the return status from the conversion functions called below.
+	 * On overflow, the input string is simply truncated.
+	 */
+	switch (base) {
+	case 10:
+	default:
+		acpi_ut_convert_decimal_string(string, &converted_integer);
+		break;
+
+	case 16:
+		acpi_ut_convert_hex_string(string, &converted_integer);
+		break;
 	}
 
-exit:
-	return (return_value);
+	return_VALUE(converted_integer);
 }
diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
index de14d49a5c90..52ae5438edeb 100644
--- a/drivers/acpi/apei/Kconfig
+++ b/drivers/acpi/apei/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config HAVE_ACPI_APEI
 	bool
 
diff --git a/drivers/acpi/apei/Makefile b/drivers/acpi/apei/Makefile
index e50573de25f1..4dfac2128737 100644
--- a/drivers/acpi/apei/Makefile
+++ b/drivers/acpi/apei/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ACPI_APEI)		+= apei.o
 obj-$(CONFIG_ACPI_APEI_GHES)	+= ghes.o
 obj-$(CONFIG_ACPI_APEI_EINJ)	+= einj.o
diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
index cb4126051f62..1d6ef9654725 100644
--- a/drivers/acpi/apei/apei-internal.h
+++ b/drivers/acpi/apei/apei-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * apei-internal.h - ACPI Platform Error Interface internal
  * definitions.
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index 2c462beee551..6742f6c68034 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -1061,7 +1061,7 @@ static int erst_writer(struct pstore_record *record)
 	rcd->hdr.error_severity = CPER_SEV_FATAL;
 	/* timestamp valid. platform_id, partition_id are invalid */
 	rcd->hdr.validation_bits = CPER_VALID_TIMESTAMP;
-	rcd->hdr.timestamp = get_seconds();
+	rcd->hdr.timestamp = ktime_get_real_seconds();
 	rcd->hdr.record_length = sizeof(*rcd) + record->size;
 	rcd->hdr.creator_id = CPER_CREATOR_PSTORE;
 	rcd->hdr.notification_type = CPER_NOTIFY_MCE;
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 077f9bad6f44..6402f7fad3bb 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -51,6 +51,7 @@
 #include <acpi/actbl1.h>
 #include <acpi/ghes.h>
 #include <acpi/apei.h>
+#include <asm/fixmap.h>
 #include <asm/tlbflush.h>
 #include <ras/ras_event.h>
 
@@ -112,22 +113,10 @@ static DEFINE_MUTEX(ghes_list_mutex);
  * Because the memory area used to transfer hardware error information
  * from BIOS to Linux can be determined only in NMI, IRQ or timer
  * handler, but general ioremap can not be used in atomic context, so
- * a special version of atomic ioremap is implemented for that.
- */
-
-/*
- * Two virtual pages are used, one for IRQ/PROCESS context, the other for
- * NMI context (optionally).
- */
-#define GHES_IOREMAP_PAGES           2
-#define GHES_IOREMAP_IRQ_PAGE(base)	(base)
-#define GHES_IOREMAP_NMI_PAGE(base)	((base) + PAGE_SIZE)
-
-/* virtual memory area for atomic ioremap */
-static struct vm_struct *ghes_ioremap_area;
-/*
- * These 2 spinlock is used to prevent atomic ioremap virtual memory
- * area from being mapped simultaneously.
+ * the fixmap is used instead.
+ *
+ * These 2 spinlocks are used to prevent the fixmap entries from being used
+ * simultaneously.
  */
 static DEFINE_RAW_SPINLOCK(ghes_ioremap_lock_nmi);
 static DEFINE_SPINLOCK(ghes_ioremap_lock_irq);
@@ -140,71 +129,38 @@ static atomic_t ghes_estatus_cache_alloced;
 
 static int ghes_panic_timeout __read_mostly = 30;
 
-static int ghes_ioremap_init(void)
-{
-	ghes_ioremap_area = __get_vm_area(PAGE_SIZE * GHES_IOREMAP_PAGES,
-		VM_IOREMAP, VMALLOC_START, VMALLOC_END);
-	if (!ghes_ioremap_area) {
-		pr_err(GHES_PFX "Failed to allocate virtual memory area for atomic ioremap.\n");
-		return -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void ghes_ioremap_exit(void)
-{
-	free_vm_area(ghes_ioremap_area);
-}
-
 static void __iomem *ghes_ioremap_pfn_nmi(u64 pfn)
 {
-	unsigned long vaddr;
 	phys_addr_t paddr;
 	pgprot_t prot;
 
-	vaddr = (unsigned long)GHES_IOREMAP_NMI_PAGE(ghes_ioremap_area->addr);
-
 	paddr = pfn << PAGE_SHIFT;
 	prot = arch_apei_get_mem_attribute(paddr);
-	ioremap_page_range(vaddr, vaddr + PAGE_SIZE, paddr, prot);
+	__set_fixmap(FIX_APEI_GHES_NMI, paddr, prot);
 
-	return (void __iomem *)vaddr;
+	return (void __iomem *) fix_to_virt(FIX_APEI_GHES_NMI);
 }
 
 static void __iomem *ghes_ioremap_pfn_irq(u64 pfn)
 {
-	unsigned long vaddr, paddr;
+	phys_addr_t paddr;
 	pgprot_t prot;
 
-	vaddr = (unsigned long)GHES_IOREMAP_IRQ_PAGE(ghes_ioremap_area->addr);
-
 	paddr = pfn << PAGE_SHIFT;
 	prot = arch_apei_get_mem_attribute(paddr);
+	__set_fixmap(FIX_APEI_GHES_IRQ, paddr, prot);
 
-	ioremap_page_range(vaddr, vaddr + PAGE_SIZE, paddr, prot);
-
-	return (void __iomem *)vaddr;
+	return (void __iomem *) fix_to_virt(FIX_APEI_GHES_IRQ);
 }
 
-static void ghes_iounmap_nmi(void __iomem *vaddr_ptr)
+static void ghes_iounmap_nmi(void)
 {
-	unsigned long vaddr = (unsigned long __force)vaddr_ptr;
-	void *base = ghes_ioremap_area->addr;
-
-	BUG_ON(vaddr != (unsigned long)GHES_IOREMAP_NMI_PAGE(base));
-	unmap_kernel_range_noflush(vaddr, PAGE_SIZE);
-	arch_apei_flush_tlb_one(vaddr);
+	clear_fixmap(FIX_APEI_GHES_NMI);
 }
 
-static void ghes_iounmap_irq(void __iomem *vaddr_ptr)
+static void ghes_iounmap_irq(void)
 {
-	unsigned long vaddr = (unsigned long __force)vaddr_ptr;
-	void *base = ghes_ioremap_area->addr;
-
-	BUG_ON(vaddr != (unsigned long)GHES_IOREMAP_IRQ_PAGE(base));
-	unmap_kernel_range_noflush(vaddr, PAGE_SIZE);
-	arch_apei_flush_tlb_one(vaddr);
+	clear_fixmap(FIX_APEI_GHES_IRQ);
 }
 
 static int ghes_estatus_pool_init(void)
@@ -360,10 +316,10 @@ static void ghes_copy_tofrom_phys(void *buffer, u64 paddr, u32 len,
 		paddr += trunk;
 		buffer += trunk;
 		if (in_nmi) {
-			ghes_iounmap_nmi(vaddr);
+			ghes_iounmap_nmi();
 			raw_spin_unlock(&ghes_ioremap_lock_nmi);
 		} else {
-			ghes_iounmap_irq(vaddr);
+			ghes_iounmap_irq();
 			spin_unlock_irqrestore(&ghes_ioremap_lock_irq, flags);
 		}
 	}
@@ -743,17 +699,19 @@ static int ghes_proc(struct ghes *ghes)
 	}
 	ghes_do_proc(ghes, ghes->estatus);
 
+out:
+	ghes_clear_estatus(ghes);
+
+	if (rc == -ENOENT)
+		return rc;
+
 	/*
 	 * GHESv2 type HEST entries introduce support for error acknowledgment,
 	 * so only acknowledge the error if this support is present.
 	 */
-	if (is_hest_type_generic_v2(ghes)) {
-		rc = ghes_ack_error(ghes->generic_v2);
-		if (rc)
-			return rc;
-	}
-out:
-	ghes_clear_estatus(ghes);
+	if (is_hest_type_generic_v2(ghes))
+		return ghes_ack_error(ghes->generic_v2);
+
 	return rc;
 }
 
@@ -772,9 +730,9 @@ static void ghes_add_timer(struct ghes *ghes)
 	add_timer(&ghes->timer);
 }
 
-static void ghes_poll_func(unsigned long data)
+static void ghes_poll_func(struct timer_list *t)
 {
-	struct ghes *ghes = (void *)data;
+	struct ghes *ghes = from_timer(ghes, t, timer);
 
 	ghes_proc(ghes);
 	if (!(ghes->flags & GHES_EXITING))
@@ -849,17 +807,8 @@ static void ghes_sea_remove(struct ghes *ghes)
 	synchronize_rcu();
 }
 #else /* CONFIG_ACPI_APEI_SEA */
-static inline void ghes_sea_add(struct ghes *ghes)
-{
-	pr_err(GHES_PFX "ID: %d, trying to add SEA notification which is not supported\n",
-	       ghes->generic->header.source_id);
-}
-
-static inline void ghes_sea_remove(struct ghes *ghes)
-{
-	pr_err(GHES_PFX "ID: %d, trying to remove SEA notification which is not supported\n",
-	       ghes->generic->header.source_id);
-}
+static inline void ghes_sea_add(struct ghes *ghes) { }
+static inline void ghes_sea_remove(struct ghes *ghes) { }
 #endif /* CONFIG_ACPI_APEI_SEA */
 
 #ifdef CONFIG_HAVE_ACPI_APEI_NMI
@@ -1061,23 +1010,9 @@ static void ghes_nmi_init_cxt(void)
 	init_irq_work(&ghes_proc_irq_work, ghes_proc_in_irq);
 }
 #else /* CONFIG_HAVE_ACPI_APEI_NMI */
-static inline void ghes_nmi_add(struct ghes *ghes)
-{
-	pr_err(GHES_PFX "ID: %d, trying to add NMI notification which is not supported!\n",
-	       ghes->generic->header.source_id);
-	BUG();
-}
-
-static inline void ghes_nmi_remove(struct ghes *ghes)
-{
-	pr_err(GHES_PFX "ID: %d, trying to remove NMI notification which is not supported!\n",
-	       ghes->generic->header.source_id);
-	BUG();
-}
-
-static inline void ghes_nmi_init_cxt(void)
-{
-}
+static inline void ghes_nmi_add(struct ghes *ghes) { }
+static inline void ghes_nmi_remove(struct ghes *ghes) { }
+static inline void ghes_nmi_init_cxt(void) { }
 #endif /* CONFIG_HAVE_ACPI_APEI_NMI */
 
 static int ghes_probe(struct platform_device *ghes_dev)
@@ -1145,8 +1080,7 @@ static int ghes_probe(struct platform_device *ghes_dev)
 
 	switch (generic->notify.type) {
 	case ACPI_HEST_NOTIFY_POLLED:
-		setup_deferrable_timer(&ghes->timer, ghes_poll_func,
-				       (unsigned long)ghes);
+		timer_setup(&ghes->timer, ghes_poll_func, TIMER_DEFERRABLE);
 		ghes_add_timer(ghes);
 		break;
 	case ACPI_HEST_NOTIFY_EXTERNAL:
@@ -1283,13 +1217,9 @@ static int __init ghes_init(void)
 
 	ghes_nmi_init_cxt();
 
-	rc = ghes_ioremap_init();
-	if (rc)
-		goto err;
-
 	rc = ghes_estatus_pool_init();
 	if (rc)
-		goto err_ioremap_exit;
+		goto err;
 
 	rc = ghes_estatus_pool_expand(GHES_ESTATUS_CACHE_AVG_SIZE *
 				      GHES_ESTATUS_CACHE_ALLOCED_MAX);
@@ -1313,8 +1243,6 @@ static int __init ghes_init(void)
 	return 0;
 err_pool_exit:
 	ghes_estatus_pool_exit();
-err_ioremap_exit:
-	ghes_ioremap_exit();
 err:
 	return rc;
 }
diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index 9565d572f8dd..de56394dd161 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -1178,12 +1178,44 @@ dev_put:
 	return ret;
 }
 
+static bool __init iort_enable_acs(struct acpi_iort_node *iort_node)
+{
+	if (iort_node->type == ACPI_IORT_NODE_PCI_ROOT_COMPLEX) {
+		struct acpi_iort_node *parent;
+		struct acpi_iort_id_mapping *map;
+		int i;
+
+		map = ACPI_ADD_PTR(struct acpi_iort_id_mapping, iort_node,
+				   iort_node->mapping_offset);
+
+		for (i = 0; i < iort_node->mapping_count; i++, map++) {
+			if (!map->output_reference)
+				continue;
+
+			parent = ACPI_ADD_PTR(struct acpi_iort_node,
+					iort_table,  map->output_reference);
+			/*
+			 * If we detect a RC->SMMU mapping, make sure
+			 * we enable ACS on the system.
+			 */
+			if ((parent->type == ACPI_IORT_NODE_SMMU) ||
+				(parent->type == ACPI_IORT_NODE_SMMU_V3)) {
+				pci_request_acs();
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
 static void __init iort_init_platform_devices(void)
 {
 	struct acpi_iort_node *iort_node, *iort_end;
 	struct acpi_table_iort *iort;
 	struct fwnode_handle *fwnode;
 	int i, ret;
+	bool acs_enabled = false;
 
 	/*
 	 * iort_table and iort both point to the start of IORT table, but
@@ -1203,6 +1235,9 @@ static void __init iort_init_platform_devices(void)
 			return;
 		}
 
+		if (!acs_enabled)
+			acs_enabled = iort_enable_acs(iort_node);
+
 		if ((iort_node->type == ACPI_IORT_NODE_SMMU) ||
 			(iort_node->type == ACPI_IORT_NODE_SMMU_V3)) {
 
diff --git a/drivers/acpi/battery.h b/drivers/acpi/battery.h
index 6c084976987d..225f493d4c27 100644
--- a/drivers/acpi/battery.h
+++ b/drivers/acpi/battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_BATTERY_H
 #define __ACPI_BATTERY_H
 
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 037fd537bbf6..995c4d8922b1 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -30,7 +30,7 @@
 
 #include "internal.h"
 
-static struct dmi_system_id acpi_rev_dmi_table[] __initdata;
+static const struct dmi_system_id acpi_rev_dmi_table[] __initconst;
 
 /*
  * POLICY: If *anything* doesn't work, put it on the blacklist.
@@ -89,7 +89,7 @@ static int __init dmi_enable_rev_override(const struct dmi_system_id *d)
 }
 #endif
 
-static struct dmi_system_id acpi_rev_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_rev_dmi_table[] __initconst = {
 #ifdef CONFIG_ACPI_REV_OVERRIDE_POSSIBLE
 	/*
 	 * DELL XPS 13 (2015) switches sound between HDA and I2S
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 59f2f96fdb7e..4d0979e02a28 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -67,7 +67,7 @@ static int set_copy_dsdt(const struct dmi_system_id *id)
 }
 #endif
 
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
 	/*
 	 * Invoke DSDT corruption work-around on all Toshiba Satellite.
 	 * https://bugzilla.kernel.org/show_bug.cgi?id=14679
@@ -83,7 +83,7 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
 	{}
 };
 #else
-static struct dmi_system_id dsdt_dmi_table[] __initdata = {
+static const struct dmi_system_id dsdt_dmi_table[] __initconst = {
 	{}
 };
 #endif
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index ef1856b15488..c391898b483c 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -390,6 +390,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_button *button = acpi_driver_data(device);
 	struct input_dev *input;
+	int users;
 
 	switch (event) {
 	case ACPI_FIXED_HARDWARE_EVENT:
@@ -398,7 +399,11 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
 	case ACPI_BUTTON_NOTIFY_STATUS:
 		input = button->input;
 		if (button->type == ACPI_BUTTON_TYPE_LID) {
-			acpi_lid_update_state(device);
+			mutex_lock(&button->input->mutex);
+			users = button->input->users;
+			mutex_unlock(&button->input->mutex);
+			if (users)
+				acpi_lid_update_state(device);
 		} else {
 			int keycode;
 
@@ -442,12 +447,24 @@ static int acpi_button_resume(struct device *dev)
 	struct acpi_button *button = acpi_driver_data(device);
 
 	button->suspended = false;
-	if (button->type == ACPI_BUTTON_TYPE_LID)
+	if (button->type == ACPI_BUTTON_TYPE_LID && button->input->users)
 		acpi_lid_initialize_state(device);
 	return 0;
 }
 #endif
 
+static int acpi_lid_input_open(struct input_dev *input)
+{
+	struct acpi_device *device = input_get_drvdata(input);
+	struct acpi_button *button = acpi_driver_data(device);
+
+	button->last_state = !!acpi_lid_evaluate_state(device);
+	button->last_time = ktime_get();
+	acpi_lid_initialize_state(device);
+
+	return 0;
+}
+
 static int acpi_button_add(struct acpi_device *device)
 {
 	struct acpi_button *button;
@@ -488,8 +505,7 @@ static int acpi_button_add(struct acpi_device *device)
 		strcpy(name, ACPI_BUTTON_DEVICE_NAME_LID);
 		sprintf(class, "%s/%s",
 			ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID);
-		button->last_state = !!acpi_lid_evaluate_state(device);
-		button->last_time = ktime_get();
+		input->open = acpi_lid_input_open;
 	} else {
 		printk(KERN_ERR PREFIX "Unsupported hid [%s]\n", hid);
 		error = -ENODEV;
@@ -522,11 +538,11 @@ static int acpi_button_add(struct acpi_device *device)
 		break;
 	}
 
+	input_set_drvdata(input, device);
 	error = input_register_device(input);
 	if (error)
 		goto err_remove_fs;
 	if (button->type == ACPI_BUTTON_TYPE_LID) {
-		acpi_lid_initialize_state(device);
 		/*
 		 * This assumes there's only one lid device, or if there are
 		 * more we only care about the last one...
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index e5b47f032d9a..21c28433c590 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -48,7 +48,6 @@
 struct cppc_pcc_data {
 	struct mbox_chan *pcc_channel;
 	void __iomem *pcc_comm_addr;
-	int pcc_subspace_idx;
 	bool pcc_channel_acquired;
 	ktime_t deadline;
 	unsigned int pcc_mpar, pcc_mrtt, pcc_nominal;
@@ -75,13 +74,16 @@ struct cppc_pcc_data {
 
 	/* Wait queue for CPUs whose requests were batched */
 	wait_queue_head_t pcc_write_wait_q;
+	ktime_t last_cmd_cmpl_time;
+	ktime_t last_mpar_reset;
+	int mpar_count;
+	int refcount;
 };
 
-/* Structure to represent the single PCC channel */
-static struct cppc_pcc_data pcc_data = {
-	.pcc_subspace_idx = -1,
-	.platform_owns_pcc = true,
-};
+/* Array  to represent the PCC channel per subspace id */
+static struct cppc_pcc_data *pcc_data[MAX_PCC_SUBSPACES];
+/* The cpu_pcc_subspace_idx containsper CPU subspace id */
+static DEFINE_PER_CPU(int, cpu_pcc_subspace_idx);
 
 /*
  * The cpc_desc structure contains the ACPI register details
@@ -93,7 +95,8 @@ static struct cppc_pcc_data pcc_data = {
 static DEFINE_PER_CPU(struct cpc_desc *, cpc_desc_ptr);
 
 /* pcc mapped address + header size + offset within PCC subspace */
-#define GET_PCC_VADDR(offs) (pcc_data.pcc_comm_addr + 0x8 + (offs))
+#define GET_PCC_VADDR(offs, pcc_ss_id) (pcc_data[pcc_ss_id]->pcc_comm_addr + \
+						0x8 + (offs))
 
 /* Check if a CPC register is in PCC */
 #define CPC_IN_PCC(cpc) ((cpc)->type == ACPI_TYPE_BUFFER &&		\
@@ -188,13 +191,16 @@ static struct kobj_type cppc_ktype = {
 	.default_attrs = cppc_attrs,
 };
 
-static int check_pcc_chan(bool chk_err_bit)
+static int check_pcc_chan(int pcc_ss_id, bool chk_err_bit)
 {
 	int ret = -EIO, status = 0;
-	struct acpi_pcct_shared_memory __iomem *generic_comm_base = pcc_data.pcc_comm_addr;
-	ktime_t next_deadline = ktime_add(ktime_get(), pcc_data.deadline);
+	struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
+	struct acpi_pcct_shared_memory __iomem *generic_comm_base =
+		pcc_ss_data->pcc_comm_addr;
+	ktime_t next_deadline = ktime_add(ktime_get(),
+					  pcc_ss_data->deadline);
 
-	if (!pcc_data.platform_owns_pcc)
+	if (!pcc_ss_data->platform_owns_pcc)
 		return 0;
 
 	/* Retry in case the remote processor was too slow to catch up. */
@@ -219,7 +225,7 @@ static int check_pcc_chan(bool chk_err_bit)
 	}
 
 	if (likely(!ret))
-		pcc_data.platform_owns_pcc = false;
+		pcc_ss_data->platform_owns_pcc = false;
 	else
 		pr_err("PCC check channel failed. Status=%x\n", status);
 
@@ -230,13 +236,12 @@ static int check_pcc_chan(bool chk_err_bit)
  * This function transfers the ownership of the PCC to the platform
  * So it must be called while holding write_lock(pcc_lock)
  */
-static int send_pcc_cmd(u16 cmd)
+static int send_pcc_cmd(int pcc_ss_id, u16 cmd)
 {
 	int ret = -EIO, i;
+	struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
 	struct acpi_pcct_shared_memory *generic_comm_base =
-		(struct acpi_pcct_shared_memory *) pcc_data.pcc_comm_addr;
-	static ktime_t last_cmd_cmpl_time, last_mpar_reset;
-	static int mpar_count;
+		(struct acpi_pcct_shared_memory *)pcc_ss_data->pcc_comm_addr;
 	unsigned int time_delta;
 
 	/*
@@ -249,24 +254,25 @@ static int send_pcc_cmd(u16 cmd)
 		 * before write completion, so first send a WRITE command to
 		 * platform
 		 */
-		if (pcc_data.pending_pcc_write_cmd)
-			send_pcc_cmd(CMD_WRITE);
+		if (pcc_ss_data->pending_pcc_write_cmd)
+			send_pcc_cmd(pcc_ss_id, CMD_WRITE);
 
-		ret = check_pcc_chan(false);
+		ret = check_pcc_chan(pcc_ss_id, false);
 		if (ret)
 			goto end;
 	} else /* CMD_WRITE */
-		pcc_data.pending_pcc_write_cmd = FALSE;
+		pcc_ss_data->pending_pcc_write_cmd = FALSE;
 
 	/*
 	 * Handle the Minimum Request Turnaround Time(MRTT)
 	 * "The minimum amount of time that OSPM must wait after the completion
 	 * of a command before issuing the next command, in microseconds"
 	 */
-	if (pcc_data.pcc_mrtt) {
-		time_delta = ktime_us_delta(ktime_get(), last_cmd_cmpl_time);
-		if (pcc_data.pcc_mrtt > time_delta)
-			udelay(pcc_data.pcc_mrtt - time_delta);
+	if (pcc_ss_data->pcc_mrtt) {
+		time_delta = ktime_us_delta(ktime_get(),
+					    pcc_ss_data->last_cmd_cmpl_time);
+		if (pcc_ss_data->pcc_mrtt > time_delta)
+			udelay(pcc_ss_data->pcc_mrtt - time_delta);
 	}
 
 	/*
@@ -280,18 +286,19 @@ static int send_pcc_cmd(u16 cmd)
 	 * not send the request to the platform after hitting the MPAR limit in
 	 * any 60s window
 	 */
-	if (pcc_data.pcc_mpar) {
-		if (mpar_count == 0) {
-			time_delta = ktime_ms_delta(ktime_get(), last_mpar_reset);
-			if (time_delta < 60 * MSEC_PER_SEC) {
+	if (pcc_ss_data->pcc_mpar) {
+		if (pcc_ss_data->mpar_count == 0) {
+			time_delta = ktime_ms_delta(ktime_get(),
+						    pcc_ss_data->last_mpar_reset);
+			if ((time_delta < 60 * MSEC_PER_SEC) && pcc_ss_data->last_mpar_reset) {
 				pr_debug("PCC cmd not sent due to MPAR limit");
 				ret = -EIO;
 				goto end;
 			}
-			last_mpar_reset = ktime_get();
-			mpar_count = pcc_data.pcc_mpar;
+			pcc_ss_data->last_mpar_reset = ktime_get();
+			pcc_ss_data->mpar_count = pcc_ss_data->pcc_mpar;
 		}
-		mpar_count--;
+		pcc_ss_data->mpar_count--;
 	}
 
 	/* Write to the shared comm region. */
@@ -300,10 +307,10 @@ static int send_pcc_cmd(u16 cmd)
 	/* Flip CMD COMPLETE bit */
 	writew_relaxed(0, &generic_comm_base->status);
 
-	pcc_data.platform_owns_pcc = true;
+	pcc_ss_data->platform_owns_pcc = true;
 
 	/* Ring doorbell */
-	ret = mbox_send_message(pcc_data.pcc_channel, &cmd);
+	ret = mbox_send_message(pcc_ss_data->pcc_channel, &cmd);
 	if (ret < 0) {
 		pr_err("Err sending PCC mbox message. cmd:%d, ret:%d\n",
 				cmd, ret);
@@ -311,15 +318,15 @@ static int send_pcc_cmd(u16 cmd)
 	}
 
 	/* wait for completion and check for PCC errro bit */
-	ret = check_pcc_chan(true);
+	ret = check_pcc_chan(pcc_ss_id, true);
 
-	if (pcc_data.pcc_mrtt)
-		last_cmd_cmpl_time = ktime_get();
+	if (pcc_ss_data->pcc_mrtt)
+		pcc_ss_data->last_cmd_cmpl_time = ktime_get();
 
-	if (pcc_data.pcc_channel->mbox->txdone_irq)
-		mbox_chan_txdone(pcc_data.pcc_channel, ret);
+	if (pcc_ss_data->pcc_channel->mbox->txdone_irq)
+		mbox_chan_txdone(pcc_ss_data->pcc_channel, ret);
 	else
-		mbox_client_txdone(pcc_data.pcc_channel, ret);
+		mbox_client_txdone(pcc_ss_data->pcc_channel, ret);
 
 end:
 	if (cmd == CMD_WRITE) {
@@ -329,12 +336,12 @@ end:
 				if (!desc)
 					continue;
 
-				if (desc->write_cmd_id == pcc_data.pcc_write_cnt)
+				if (desc->write_cmd_id == pcc_ss_data->pcc_write_cnt)
 					desc->write_cmd_status = ret;
 			}
 		}
-		pcc_data.pcc_write_cnt++;
-		wake_up_all(&pcc_data.pcc_write_wait_q);
+		pcc_ss_data->pcc_write_cnt++;
+		wake_up_all(&pcc_ss_data->pcc_write_wait_q);
 	}
 
 	return ret;
@@ -536,16 +543,16 @@ err_ret:
 }
 EXPORT_SYMBOL_GPL(acpi_get_psd_map);
 
-static int register_pcc_channel(int pcc_subspace_idx)
+static int register_pcc_channel(int pcc_ss_idx)
 {
 	struct acpi_pcct_hw_reduced *cppc_ss;
 	u64 usecs_lat;
 
-	if (pcc_subspace_idx >= 0) {
-		pcc_data.pcc_channel = pcc_mbox_request_channel(&cppc_mbox_cl,
-				pcc_subspace_idx);
+	if (pcc_ss_idx >= 0) {
+		pcc_data[pcc_ss_idx]->pcc_channel =
+			pcc_mbox_request_channel(&cppc_mbox_cl,	pcc_ss_idx);
 
-		if (IS_ERR(pcc_data.pcc_channel)) {
+		if (IS_ERR(pcc_data[pcc_ss_idx]->pcc_channel)) {
 			pr_err("Failed to find PCC communication channel\n");
 			return -ENODEV;
 		}
@@ -556,7 +563,7 @@ static int register_pcc_channel(int pcc_subspace_idx)
 		 * PCC channels) and stored pointers to the
 		 * subspace communication region in con_priv.
 		 */
-		cppc_ss = (pcc_data.pcc_channel)->con_priv;
+		cppc_ss = (pcc_data[pcc_ss_idx]->pcc_channel)->con_priv;
 
 		if (!cppc_ss) {
 			pr_err("No PCC subspace found for CPPC\n");
@@ -569,19 +576,20 @@ static int register_pcc_channel(int pcc_subspace_idx)
 		 * So add an arbitrary amount of wait on top of Nominal.
 		 */
 		usecs_lat = NUM_RETRIES * cppc_ss->latency;
-		pcc_data.deadline = ns_to_ktime(usecs_lat * NSEC_PER_USEC);
-		pcc_data.pcc_mrtt = cppc_ss->min_turnaround_time;
-		pcc_data.pcc_mpar = cppc_ss->max_access_rate;
-		pcc_data.pcc_nominal = cppc_ss->latency;
-
-		pcc_data.pcc_comm_addr = acpi_os_ioremap(cppc_ss->base_address, cppc_ss->length);
-		if (!pcc_data.pcc_comm_addr) {
+		pcc_data[pcc_ss_idx]->deadline = ns_to_ktime(usecs_lat * NSEC_PER_USEC);
+		pcc_data[pcc_ss_idx]->pcc_mrtt = cppc_ss->min_turnaround_time;
+		pcc_data[pcc_ss_idx]->pcc_mpar = cppc_ss->max_access_rate;
+		pcc_data[pcc_ss_idx]->pcc_nominal = cppc_ss->latency;
+
+		pcc_data[pcc_ss_idx]->pcc_comm_addr =
+			acpi_os_ioremap(cppc_ss->base_address, cppc_ss->length);
+		if (!pcc_data[pcc_ss_idx]->pcc_comm_addr) {
 			pr_err("Failed to ioremap PCC comm region mem\n");
 			return -ENOMEM;
 		}
 
 		/* Set flag so that we dont come here for each CPU. */
-		pcc_data.pcc_channel_acquired = true;
+		pcc_data[pcc_ss_idx]->pcc_channel_acquired = true;
 	}
 
 	return 0;
@@ -600,6 +608,34 @@ bool __weak cpc_ffh_supported(void)
 	return false;
 }
 
+
+/**
+ * pcc_data_alloc() - Allocate the pcc_data memory for pcc subspace
+ *
+ * Check and allocate the cppc_pcc_data memory.
+ * In some processor configurations it is possible that same subspace
+ * is shared between multiple CPU's. This is seen especially in CPU's
+ * with hardware multi-threading support.
+ *
+ * Return: 0 for success, errno for failure
+ */
+int pcc_data_alloc(int pcc_ss_id)
+{
+	if (pcc_ss_id < 0 || pcc_ss_id >= MAX_PCC_SUBSPACES)
+		return -EINVAL;
+
+	if (pcc_data[pcc_ss_id]) {
+		pcc_data[pcc_ss_id]->refcount++;
+	} else {
+		pcc_data[pcc_ss_id] = kzalloc(sizeof(struct cppc_pcc_data),
+					      GFP_KERNEL);
+		if (!pcc_data[pcc_ss_id])
+			return -ENOMEM;
+		pcc_data[pcc_ss_id]->refcount++;
+	}
+
+	return 0;
+}
 /*
  * An example CPC table looks like the following.
  *
@@ -661,6 +697,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
 	struct device *cpu_dev;
 	acpi_handle handle = pr->handle;
 	unsigned int num_ent, i, cpc_rev;
+	int pcc_subspace_id = -1;
 	acpi_status status;
 	int ret = -EFAULT;
 
@@ -733,9 +770,11 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
 			 * so extract it only once.
 			 */
 			if (gas_t->space_id == ACPI_ADR_SPACE_PLATFORM_COMM) {
-				if (pcc_data.pcc_subspace_idx < 0)
-					pcc_data.pcc_subspace_idx = gas_t->access_width;
-				else if (pcc_data.pcc_subspace_idx != gas_t->access_width) {
+				if (pcc_subspace_id < 0) {
+					pcc_subspace_id = gas_t->access_width;
+					if (pcc_data_alloc(pcc_subspace_id))
+						goto out_free;
+				} else if (pcc_subspace_id != gas_t->access_width) {
 					pr_debug("Mismatched PCC ids.\n");
 					goto out_free;
 				}
@@ -763,6 +802,7 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
 			goto out_free;
 		}
 	}
+	per_cpu(cpu_pcc_subspace_idx, pr->id) = pcc_subspace_id;
 	/* Store CPU Logical ID */
 	cpc_ptr->cpu_id = pr->id;
 
@@ -771,14 +811,14 @@ int acpi_cppc_processor_probe(struct acpi_processor *pr)
 	if (ret)
 		goto out_free;
 
-	/* Register PCC channel once for all CPUs. */
-	if (!pcc_data.pcc_channel_acquired) {
-		ret = register_pcc_channel(pcc_data.pcc_subspace_idx);
+	/* Register PCC channel once for all PCC subspace id. */
+	if (pcc_subspace_id >= 0 && !pcc_data[pcc_subspace_id]->pcc_channel_acquired) {
+		ret = register_pcc_channel(pcc_subspace_id);
 		if (ret)
 			goto out_free;
 
-		init_rwsem(&pcc_data.pcc_lock);
-		init_waitqueue_head(&pcc_data.pcc_write_wait_q);
+		init_rwsem(&pcc_data[pcc_subspace_id]->pcc_lock);
+		init_waitqueue_head(&pcc_data[pcc_subspace_id]->pcc_write_wait_q);
 	}
 
 	/* Everything looks okay */
@@ -831,6 +871,18 @@ void acpi_cppc_processor_exit(struct acpi_processor *pr)
 	struct cpc_desc *cpc_ptr;
 	unsigned int i;
 	void __iomem *addr;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, pr->id);
+
+	if (pcc_ss_id >=0 && pcc_data[pcc_ss_id]) {
+		if (pcc_data[pcc_ss_id]->pcc_channel_acquired) {
+			pcc_data[pcc_ss_id]->refcount--;
+			if (!pcc_data[pcc_ss_id]->refcount) {
+				pcc_mbox_free_channel(pcc_data[pcc_ss_id]->pcc_channel);
+				pcc_data[pcc_ss_id]->pcc_channel_acquired = 0;
+				kfree(pcc_data[pcc_ss_id]);
+			}
+		}
+	}
 
 	cpc_ptr = per_cpu(cpc_desc_ptr, pr->id);
 	if (!cpc_ptr)
@@ -888,6 +940,7 @@ static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val)
 {
 	int ret_val = 0;
 	void __iomem *vaddr = 0;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
 	struct cpc_reg *reg = &reg_res->cpc_entry.reg;
 
 	if (reg_res->type == ACPI_TYPE_INTEGER) {
@@ -897,7 +950,7 @@ static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val)
 
 	*val = 0;
 	if (reg->space_id == ACPI_ADR_SPACE_PLATFORM_COMM)
-		vaddr = GET_PCC_VADDR(reg->address);
+		vaddr = GET_PCC_VADDR(reg->address, pcc_ss_id);
 	else if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
 		vaddr = reg_res->sys_mem_vaddr;
 	else if (reg->space_id == ACPI_ADR_SPACE_FIXED_HARDWARE)
@@ -932,10 +985,11 @@ static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val)
 {
 	int ret_val = 0;
 	void __iomem *vaddr = 0;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
 	struct cpc_reg *reg = &reg_res->cpc_entry.reg;
 
 	if (reg->space_id == ACPI_ADR_SPACE_PLATFORM_COMM)
-		vaddr = GET_PCC_VADDR(reg->address);
+		vaddr = GET_PCC_VADDR(reg->address, pcc_ss_id);
 	else if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY)
 		vaddr = reg_res->sys_mem_vaddr;
 	else if (reg->space_id == ACPI_ADR_SPACE_FIXED_HARDWARE)
@@ -980,6 +1034,8 @@ int cppc_get_perf_caps(int cpunum, struct cppc_perf_caps *perf_caps)
 	struct cpc_register_resource *highest_reg, *lowest_reg,
 		*lowest_non_linear_reg, *nominal_reg;
 	u64 high, low, nom, min_nonlinear;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpunum);
+	struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
 	int ret = 0, regs_in_pcc = 0;
 
 	if (!cpc_desc) {
@@ -996,9 +1052,9 @@ int cppc_get_perf_caps(int cpunum, struct cppc_perf_caps *perf_caps)
 	if (CPC_IN_PCC(highest_reg) || CPC_IN_PCC(lowest_reg) ||
 		CPC_IN_PCC(lowest_non_linear_reg) || CPC_IN_PCC(nominal_reg)) {
 		regs_in_pcc = 1;
-		down_write(&pcc_data.pcc_lock);
+		down_write(&pcc_ss_data->pcc_lock);
 		/* Ring doorbell once to update PCC subspace */
-		if (send_pcc_cmd(CMD_READ) < 0) {
+		if (send_pcc_cmd(pcc_ss_id, CMD_READ) < 0) {
 			ret = -EIO;
 			goto out_err;
 		}
@@ -1021,7 +1077,7 @@ int cppc_get_perf_caps(int cpunum, struct cppc_perf_caps *perf_caps)
 
 out_err:
 	if (regs_in_pcc)
-		up_write(&pcc_data.pcc_lock);
+		up_write(&pcc_ss_data->pcc_lock);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(cppc_get_perf_caps);
@@ -1038,6 +1094,8 @@ int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs)
 	struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpunum);
 	struct cpc_register_resource *delivered_reg, *reference_reg,
 		*ref_perf_reg, *ctr_wrap_reg;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpunum);
+	struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
 	u64 delivered, reference, ref_perf, ctr_wrap_time;
 	int ret = 0, regs_in_pcc = 0;
 
@@ -1061,10 +1119,10 @@ int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs)
 	/* Are any of the regs PCC ?*/
 	if (CPC_IN_PCC(delivered_reg) || CPC_IN_PCC(reference_reg) ||
 		CPC_IN_PCC(ctr_wrap_reg) || CPC_IN_PCC(ref_perf_reg)) {
-		down_write(&pcc_data.pcc_lock);
+		down_write(&pcc_ss_data->pcc_lock);
 		regs_in_pcc = 1;
 		/* Ring doorbell once to update PCC subspace */
-		if (send_pcc_cmd(CMD_READ) < 0) {
+		if (send_pcc_cmd(pcc_ss_id, CMD_READ) < 0) {
 			ret = -EIO;
 			goto out_err;
 		}
@@ -1094,7 +1152,7 @@ int cppc_get_perf_ctrs(int cpunum, struct cppc_perf_fb_ctrs *perf_fb_ctrs)
 	perf_fb_ctrs->wraparound_time = ctr_wrap_time;
 out_err:
 	if (regs_in_pcc)
-		up_write(&pcc_data.pcc_lock);
+		up_write(&pcc_ss_data->pcc_lock);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(cppc_get_perf_ctrs);
@@ -1110,6 +1168,8 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
 {
 	struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpu);
 	struct cpc_register_resource *desired_reg;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
+	struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
 	int ret = 0;
 
 	if (!cpc_desc) {
@@ -1127,11 +1187,11 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
 	 * achieve that goal here
 	 */
 	if (CPC_IN_PCC(desired_reg)) {
-		down_read(&pcc_data.pcc_lock);	/* BEGIN Phase-I */
-		if (pcc_data.platform_owns_pcc) {
-			ret = check_pcc_chan(false);
+		down_read(&pcc_ss_data->pcc_lock); /* BEGIN Phase-I */
+		if (pcc_ss_data->platform_owns_pcc) {
+			ret = check_pcc_chan(pcc_ss_id, false);
 			if (ret) {
-				up_read(&pcc_data.pcc_lock);
+				up_read(&pcc_ss_data->pcc_lock);
 				return ret;
 			}
 		}
@@ -1139,8 +1199,8 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
 		 * Update the pending_write to make sure a PCC CMD_READ will not
 		 * arrive and steal the channel during the switch to write lock
 		 */
-		pcc_data.pending_pcc_write_cmd = true;
-		cpc_desc->write_cmd_id = pcc_data.pcc_write_cnt;
+		pcc_ss_data->pending_pcc_write_cmd = true;
+		cpc_desc->write_cmd_id = pcc_ss_data->pcc_write_cnt;
 		cpc_desc->write_cmd_status = 0;
 	}
 
@@ -1151,7 +1211,7 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
 	cpc_write(cpu, desired_reg, perf_ctrls->desired_perf);
 
 	if (CPC_IN_PCC(desired_reg))
-		up_read(&pcc_data.pcc_lock);	/* END Phase-I */
+		up_read(&pcc_ss_data->pcc_lock);	/* END Phase-I */
 	/*
 	 * This is Phase-II where we transfer the ownership of PCC to Platform
 	 *
@@ -1199,15 +1259,15 @@ int cppc_set_perf(int cpu, struct cppc_perf_ctrls *perf_ctrls)
 	 * the write command before servicing the read command
 	 */
 	if (CPC_IN_PCC(desired_reg)) {
-		if (down_write_trylock(&pcc_data.pcc_lock)) {	/* BEGIN Phase-II */
+		if (down_write_trylock(&pcc_ss_data->pcc_lock)) {/* BEGIN Phase-II */
 			/* Update only if there are pending write commands */
-			if (pcc_data.pending_pcc_write_cmd)
-				send_pcc_cmd(CMD_WRITE);
-			up_write(&pcc_data.pcc_lock);		/* END Phase-II */
+			if (pcc_ss_data->pending_pcc_write_cmd)
+				send_pcc_cmd(pcc_ss_id, CMD_WRITE);
+			up_write(&pcc_ss_data->pcc_lock);	/* END Phase-II */
 		} else
 			/* Wait until pcc_write_cnt is updated by send_pcc_cmd */
-			wait_event(pcc_data.pcc_write_wait_q,
-				cpc_desc->write_cmd_id != pcc_data.pcc_write_cnt);
+			wait_event(pcc_ss_data->pcc_write_wait_q,
+				   cpc_desc->write_cmd_id != pcc_ss_data->pcc_write_cnt);
 
 		/* send_pcc_cmd updates the status in case of failure */
 		ret = cpc_desc->write_cmd_status;
@@ -1240,6 +1300,8 @@ unsigned int cppc_get_transition_latency(int cpu_num)
 	unsigned int latency_ns = 0;
 	struct cpc_desc *cpc_desc;
 	struct cpc_register_resource *desired_reg;
+	int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu_num);
+	struct cppc_pcc_data *pcc_ss_data = pcc_data[pcc_ss_id];
 
 	cpc_desc = per_cpu(cpc_desc_ptr, cpu_num);
 	if (!cpc_desc)
@@ -1249,11 +1311,11 @@ unsigned int cppc_get_transition_latency(int cpu_num)
 	if (!CPC_IN_PCC(desired_reg))
 		return CPUFREQ_ETERNAL;
 
-	if (pcc_data.pcc_mpar)
-		latency_ns = 60 * (1000 * 1000 * 1000 / pcc_data.pcc_mpar);
+	if (pcc_ss_data->pcc_mpar)
+		latency_ns = 60 * (1000 * 1000 * 1000 / pcc_ss_data->pcc_mpar);
 
-	latency_ns = max(latency_ns, pcc_data.pcc_nominal * 1000);
-	latency_ns = max(latency_ns, pcc_data.pcc_mrtt * 1000);
+	latency_ns = max(latency_ns, pcc_ss_data->pcc_nominal * 1000);
+	latency_ns = max(latency_ns, pcc_ss_data->pcc_mrtt * 1000);
 
 	return latency_ns;
 }
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index fbcc73f7a099..e4ffaeec9ec2 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -387,6 +387,7 @@ EXPORT_SYMBOL(acpi_bus_power_manageable);
 
 #ifdef CONFIG_PM
 static DEFINE_MUTEX(acpi_pm_notifier_lock);
+static DEFINE_MUTEX(acpi_pm_notifier_install_lock);
 
 void acpi_pm_wakeup_event(struct device *dev)
 {
@@ -443,24 +444,25 @@ acpi_status acpi_add_pm_notifier(struct acpi_device *adev, struct device *dev,
 	if (!dev && !func)
 		return AE_BAD_PARAMETER;
 
-	mutex_lock(&acpi_pm_notifier_lock);
+	mutex_lock(&acpi_pm_notifier_install_lock);
 
 	if (adev->wakeup.flags.notifier_present)
 		goto out;
 
-	adev->wakeup.ws = wakeup_source_register(dev_name(&adev->dev));
-	adev->wakeup.context.dev = dev;
-	adev->wakeup.context.func = func;
-
 	status = acpi_install_notify_handler(adev->handle, ACPI_SYSTEM_NOTIFY,
 					     acpi_pm_notify_handler, NULL);
 	if (ACPI_FAILURE(status))
 		goto out;
 
+	mutex_lock(&acpi_pm_notifier_lock);
+	adev->wakeup.ws = wakeup_source_register(dev_name(&adev->dev));
+	adev->wakeup.context.dev = dev;
+	adev->wakeup.context.func = func;
 	adev->wakeup.flags.notifier_present = true;
+	mutex_unlock(&acpi_pm_notifier_lock);
 
  out:
-	mutex_unlock(&acpi_pm_notifier_lock);
+	mutex_unlock(&acpi_pm_notifier_install_lock);
 	return status;
 }
 
@@ -472,7 +474,7 @@ acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
 {
 	acpi_status status = AE_BAD_PARAMETER;
 
-	mutex_lock(&acpi_pm_notifier_lock);
+	mutex_lock(&acpi_pm_notifier_install_lock);
 
 	if (!adev->wakeup.flags.notifier_present)
 		goto out;
@@ -483,14 +485,15 @@ acpi_status acpi_remove_pm_notifier(struct acpi_device *adev)
 	if (ACPI_FAILURE(status))
 		goto out;
 
+	mutex_lock(&acpi_pm_notifier_lock);
 	adev->wakeup.context.func = NULL;
 	adev->wakeup.context.dev = NULL;
 	wakeup_source_unregister(adev->wakeup.ws);
-
 	adev->wakeup.flags.notifier_present = false;
+	mutex_unlock(&acpi_pm_notifier_lock);
 
  out:
-	mutex_unlock(&acpi_pm_notifier_lock);
+	mutex_unlock(&acpi_pm_notifier_install_lock);
 	return status;
 }
 
@@ -581,8 +584,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev,
 		d_min = ret;
 		wakeup = device_may_wakeup(dev) && adev->wakeup.flags.valid
 			&& adev->wakeup.sleep_state >= target_state;
-	} else if (dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) !=
-			PM_QOS_FLAGS_NONE) {
+	} else {
 		wakeup = adev->wakeup.flags.valid;
 	}
 
@@ -848,48 +850,48 @@ static int acpi_dev_pm_full_power(struct acpi_device *adev)
 }
 
 /**
- * acpi_dev_runtime_suspend - Put device into a low-power state using ACPI.
+ * acpi_dev_suspend - Put device into a low-power state using ACPI.
  * @dev: Device to put into a low-power state.
+ * @wakeup: Whether or not to enable wakeup for the device.
  *
- * Put the given device into a runtime low-power state using the standard ACPI
+ * Put the given device into a low-power state using the standard ACPI
  * mechanism.  Set up remote wakeup if desired, choose the state to put the
  * device into (this checks if remote wakeup is expected to work too), and set
  * the power state of the device.
  */
-int acpi_dev_runtime_suspend(struct device *dev)
+int acpi_dev_suspend(struct device *dev, bool wakeup)
 {
 	struct acpi_device *adev = ACPI_COMPANION(dev);
-	bool remote_wakeup;
+	u32 target_state = acpi_target_system_state();
 	int error;
 
 	if (!adev)
 		return 0;
 
-	remote_wakeup = dev_pm_qos_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP) >
-				PM_QOS_FLAGS_NONE;
-	if (remote_wakeup) {
-		error = acpi_device_wakeup_enable(adev, ACPI_STATE_S0);
+	if (wakeup && acpi_device_can_wakeup(adev)) {
+		error = acpi_device_wakeup_enable(adev, target_state);
 		if (error)
 			return -EAGAIN;
+	} else {
+		wakeup = false;
 	}
 
-	error = acpi_dev_pm_low_power(dev, adev, ACPI_STATE_S0);
-	if (error && remote_wakeup)
+	error = acpi_dev_pm_low_power(dev, adev, target_state);
+	if (error && wakeup)
 		acpi_device_wakeup_disable(adev);
 
 	return error;
 }
-EXPORT_SYMBOL_GPL(acpi_dev_runtime_suspend);
+EXPORT_SYMBOL_GPL(acpi_dev_suspend);
 
 /**
- * acpi_dev_runtime_resume - Put device into the full-power state using ACPI.
+ * acpi_dev_resume - Put device into the full-power state using ACPI.
  * @dev: Device to put into the full-power state.
  *
  * Put the given device into the full-power state using the standard ACPI
- * mechanism at run time.  Set the power state of the device to ACPI D0 and
- * disable remote wakeup.
+ * mechanism.  Set the power state of the device to ACPI D0 and disable wakeup.
  */
-int acpi_dev_runtime_resume(struct device *dev)
+int acpi_dev_resume(struct device *dev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(dev);
 	int error;
@@ -901,7 +903,7 @@ int acpi_dev_runtime_resume(struct device *dev)
 	acpi_device_wakeup_disable(adev);
 	return error;
 }
-EXPORT_SYMBOL_GPL(acpi_dev_runtime_resume);
+EXPORT_SYMBOL_GPL(acpi_dev_resume);
 
 /**
  * acpi_subsys_runtime_suspend - Suspend device using ACPI.
@@ -913,7 +915,7 @@ EXPORT_SYMBOL_GPL(acpi_dev_runtime_resume);
 int acpi_subsys_runtime_suspend(struct device *dev)
 {
 	int ret = pm_generic_runtime_suspend(dev);
-	return ret ? ret : acpi_dev_runtime_suspend(dev);
+	return ret ? ret : acpi_dev_suspend(dev, true);
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_runtime_suspend);
 
@@ -926,68 +928,33 @@ EXPORT_SYMBOL_GPL(acpi_subsys_runtime_suspend);
  */
 int acpi_subsys_runtime_resume(struct device *dev)
 {
-	int ret = acpi_dev_runtime_resume(dev);
+	int ret = acpi_dev_resume(dev);
 	return ret ? ret : pm_generic_runtime_resume(dev);
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_runtime_resume);
 
 #ifdef CONFIG_PM_SLEEP
-/**
- * acpi_dev_suspend_late - Put device into a low-power state using ACPI.
- * @dev: Device to put into a low-power state.
- *
- * Put the given device into a low-power state during system transition to a
- * sleep state using the standard ACPI mechanism.  Set up system wakeup if
- * desired, choose the state to put the device into (this checks if system
- * wakeup is expected to work too), and set the power state of the device.
- */
-int acpi_dev_suspend_late(struct device *dev)
+static bool acpi_dev_needs_resume(struct device *dev, struct acpi_device *adev)
 {
-	struct acpi_device *adev = ACPI_COMPANION(dev);
-	u32 target_state;
-	bool wakeup;
-	int error;
-
-	if (!adev)
-		return 0;
-
-	target_state = acpi_target_system_state();
-	wakeup = device_may_wakeup(dev) && acpi_device_can_wakeup(adev);
-	if (wakeup) {
-		error = acpi_device_wakeup_enable(adev, target_state);
-		if (error)
-			return error;
-	}
+	u32 sys_target = acpi_target_system_state();
+	int ret, state;
 
-	error = acpi_dev_pm_low_power(dev, adev, target_state);
-	if (error && wakeup)
-		acpi_device_wakeup_disable(adev);
+	if (!pm_runtime_suspended(dev) || !adev ||
+	    device_may_wakeup(dev) != !!adev->wakeup.prepare_count)
+		return true;
 
-	return error;
-}
-EXPORT_SYMBOL_GPL(acpi_dev_suspend_late);
+	if (sys_target == ACPI_STATE_S0)
+		return false;
 
-/**
- * acpi_dev_resume_early - Put device into the full-power state using ACPI.
- * @dev: Device to put into the full-power state.
- *
- * Put the given device into the full-power state using the standard ACPI
- * mechanism during system transition to the working state.  Set the power
- * state of the device to ACPI D0 and disable remote wakeup.
- */
-int acpi_dev_resume_early(struct device *dev)
-{
-	struct acpi_device *adev = ACPI_COMPANION(dev);
-	int error;
+	if (adev->power.flags.dsw_present)
+		return true;
 
-	if (!adev)
-		return 0;
+	ret = acpi_dev_pm_get_state(dev, adev, sys_target, NULL, &state);
+	if (ret)
+		return true;
 
-	error = acpi_dev_pm_full_power(adev);
-	acpi_device_wakeup_disable(adev);
-	return error;
+	return state != adev->power.state;
 }
-EXPORT_SYMBOL_GPL(acpi_dev_resume_early);
 
 /**
  * acpi_subsys_prepare - Prepare device for system transition to a sleep state.
@@ -996,39 +963,53 @@ EXPORT_SYMBOL_GPL(acpi_dev_resume_early);
 int acpi_subsys_prepare(struct device *dev)
 {
 	struct acpi_device *adev = ACPI_COMPANION(dev);
-	u32 sys_target;
-	int ret, state;
 
-	ret = pm_generic_prepare(dev);
-	if (ret < 0)
-		return ret;
-
-	if (!adev || !pm_runtime_suspended(dev)
-	    || device_may_wakeup(dev) != !!adev->wakeup.prepare_count)
-		return 0;
+	if (dev->driver && dev->driver->pm && dev->driver->pm->prepare) {
+		int ret = dev->driver->pm->prepare(dev);
 
-	sys_target = acpi_target_system_state();
-	if (sys_target == ACPI_STATE_S0)
-		return 1;
+		if (ret < 0)
+			return ret;
 
-	if (adev->power.flags.dsw_present)
-		return 0;
+		if (!ret && dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_PREPARE))
+			return 0;
+	}
 
-	ret = acpi_dev_pm_get_state(dev, adev, sys_target, NULL, &state);
-	return !ret && state == adev->power.state;
+	return !acpi_dev_needs_resume(dev, adev);
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_prepare);
 
 /**
+ * acpi_subsys_complete - Finalize device's resume during system resume.
+ * @dev: Device to handle.
+ */
+void acpi_subsys_complete(struct device *dev)
+{
+	pm_generic_complete(dev);
+	/*
+	 * If the device had been runtime-suspended before the system went into
+	 * the sleep state it is going out of and it has never been resumed till
+	 * now, resume it in case the firmware powered it up.
+	 */
+	if (dev->power.direct_complete && pm_resume_via_firmware())
+		pm_request_resume(dev);
+}
+EXPORT_SYMBOL_GPL(acpi_subsys_complete);
+
+/**
  * acpi_subsys_suspend - Run the device driver's suspend callback.
  * @dev: Device to handle.
  *
- * Follow PCI and resume devices suspended at run time before running their
- * system suspend callbacks.
+ * Follow PCI and resume devices from runtime suspend before running their
+ * system suspend callbacks, unless the driver can cope with runtime-suspended
+ * devices during system suspend and there are no ACPI-specific reasons for
+ * resuming them.
  */
 int acpi_subsys_suspend(struct device *dev)
 {
-	pm_runtime_resume(dev);
+	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+	    acpi_dev_needs_resume(dev, ACPI_COMPANION(dev)))
+		pm_runtime_resume(dev);
+
 	return pm_generic_suspend(dev);
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_suspend);
@@ -1042,12 +1023,48 @@ EXPORT_SYMBOL_GPL(acpi_subsys_suspend);
  */
 int acpi_subsys_suspend_late(struct device *dev)
 {
-	int ret = pm_generic_suspend_late(dev);
-	return ret ? ret : acpi_dev_suspend_late(dev);
+	int ret;
+
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	ret = pm_generic_suspend_late(dev);
+	return ret ? ret : acpi_dev_suspend(dev, device_may_wakeup(dev));
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_suspend_late);
 
 /**
+ * acpi_subsys_suspend_noirq - Run the device driver's "noirq" suspend callback.
+ * @dev: Device to suspend.
+ */
+int acpi_subsys_suspend_noirq(struct device *dev)
+{
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	return pm_generic_suspend_noirq(dev);
+}
+EXPORT_SYMBOL_GPL(acpi_subsys_suspend_noirq);
+
+/**
+ * acpi_subsys_resume_noirq - Run the device driver's "noirq" resume callback.
+ * @dev: Device to handle.
+ */
+int acpi_subsys_resume_noirq(struct device *dev)
+{
+	/*
+	 * Devices with DPM_FLAG_SMART_SUSPEND may be left in runtime suspend
+	 * during system suspend, so update their runtime PM status to "active"
+	 * as they will be put into D0 going forward.
+	 */
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		pm_runtime_set_active(dev);
+
+	return pm_generic_resume_noirq(dev);
+}
+EXPORT_SYMBOL_GPL(acpi_subsys_resume_noirq);
+
+/**
  * acpi_subsys_resume_early - Resume device using ACPI.
  * @dev: Device to Resume.
  *
@@ -1057,7 +1074,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_suspend_late);
  */
 int acpi_subsys_resume_early(struct device *dev)
 {
-	int ret = acpi_dev_resume_early(dev);
+	int ret = acpi_dev_resume(dev);
 	return ret ? ret : pm_generic_resume_early(dev);
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_resume_early);
@@ -1074,11 +1091,60 @@ int acpi_subsys_freeze(struct device *dev)
 	 * runtime-suspended devices should not be touched during freeze/thaw
 	 * transitions.
 	 */
-	pm_runtime_resume(dev);
+	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND))
+		pm_runtime_resume(dev);
+
 	return pm_generic_freeze(dev);
 }
 EXPORT_SYMBOL_GPL(acpi_subsys_freeze);
 
+/**
+ * acpi_subsys_freeze_late - Run the device driver's "late" freeze callback.
+ * @dev: Device to handle.
+ */
+int acpi_subsys_freeze_late(struct device *dev)
+{
+
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	return pm_generic_freeze_late(dev);
+}
+EXPORT_SYMBOL_GPL(acpi_subsys_freeze_late);
+
+/**
+ * acpi_subsys_freeze_noirq - Run the device driver's "noirq" freeze callback.
+ * @dev: Device to handle.
+ */
+int acpi_subsys_freeze_noirq(struct device *dev)
+{
+
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	return pm_generic_freeze_noirq(dev);
+}
+EXPORT_SYMBOL_GPL(acpi_subsys_freeze_noirq);
+
+/**
+ * acpi_subsys_thaw_noirq - Run the device driver's "noirq" thaw callback.
+ * @dev: Device to handle.
+ */
+int acpi_subsys_thaw_noirq(struct device *dev)
+{
+	/*
+	 * If the device is in runtime suspend, the "thaw" code may not work
+	 * correctly with it, so skip the driver callback and make the PM core
+	 * skip all of the subsequent "thaw" callbacks for the device.
+	 */
+	if (dev_pm_smart_suspend_and_suspended(dev)) {
+		dev->power.direct_complete = true;
+		return 0;
+	}
+
+	return pm_generic_thaw_noirq(dev);
+}
+EXPORT_SYMBOL_GPL(acpi_subsys_thaw_noirq);
 #endif /* CONFIG_PM_SLEEP */
 
 static struct dev_pm_domain acpi_general_pm_domain = {
@@ -1087,13 +1153,20 @@ static struct dev_pm_domain acpi_general_pm_domain = {
 		.runtime_resume = acpi_subsys_runtime_resume,
 #ifdef CONFIG_PM_SLEEP
 		.prepare = acpi_subsys_prepare,
-		.complete = pm_complete_with_resume_check,
+		.complete = acpi_subsys_complete,
 		.suspend = acpi_subsys_suspend,
 		.suspend_late = acpi_subsys_suspend_late,
+		.suspend_noirq = acpi_subsys_suspend_noirq,
+		.resume_noirq = acpi_subsys_resume_noirq,
 		.resume_early = acpi_subsys_resume_early,
 		.freeze = acpi_subsys_freeze,
+		.freeze_late = acpi_subsys_freeze_late,
+		.freeze_noirq = acpi_subsys_freeze_noirq,
+		.thaw_noirq = acpi_subsys_thaw_noirq,
 		.poweroff = acpi_subsys_suspend,
 		.poweroff_late = acpi_subsys_suspend_late,
+		.poweroff_noirq = acpi_subsys_suspend_noirq,
+		.restore_noirq = acpi_subsys_resume_noirq,
 		.restore_early = acpi_subsys_resume_early,
 #endif
 	},
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 2305e1ab978e..e3fc1f045e1c 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -482,6 +482,7 @@ int dock_notify(struct acpi_device *adev, u32 event)
 		surprise_removal = 1;
 		event = ACPI_NOTIFY_EJECT_REQUEST;
 		/* Fall back */
+		/* fall through */
 	case ACPI_NOTIFY_EJECT_REQUEST:
 		begin_undock(ds);
 		if ((immediate_undock && !(ds->flags & DOCK_IS_ATA))
diff --git a/drivers/acpi/dptf/Kconfig b/drivers/acpi/dptf/Kconfig
index ac0a6ed0cf46..90a2fd979282 100644
--- a/drivers/acpi/dptf/Kconfig
+++ b/drivers/acpi/dptf/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config DPTF_POWER
 	tristate "DPTF Platform Power Participant"
 	depends on X86
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index fdfae6f3c0b1..82b3ce5e937e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -486,8 +486,11 @@ static inline void __acpi_ec_enable_event(struct acpi_ec *ec)
 {
 	if (!test_and_set_bit(EC_FLAGS_QUERY_ENABLED, &ec->flags))
 		ec_log_drv("event unblocked");
-	if (!test_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
-		advance_transaction(ec);
+	/*
+	 * Unconditionally invoke this once after enabling the event
+	 * handling mechanism to detect the pending events.
+	 */
+	advance_transaction(ec);
 }
 
 static inline void __acpi_ec_disable_event(struct acpi_ec *ec)
@@ -1456,11 +1459,10 @@ static int ec_install_handlers(struct acpi_ec *ec, bool handle_events)
 			if (test_bit(EC_FLAGS_STARTED, &ec->flags) &&
 			    ec->reference_count >= 1)
 				acpi_ec_enable_gpe(ec, true);
-
-			/* EC is fully operational, allow queries */
-			acpi_ec_enable_event(ec);
 		}
 	}
+	/* EC is fully operational, allow queries */
+	acpi_ec_enable_event(ec);
 
 	return 0;
 }
@@ -1809,7 +1811,7 @@ static int ec_honor_ecdt_gpe(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id ec_dmi_table[] __initdata = {
+static const struct dmi_system_id ec_dmi_table[] __initconst = {
 	{
 	ec_correct_ecdt, "MSI MS-171F", {
 	DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star"),
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 7fceb3b4691b..5a127f3f2d5c 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * event.c - exporting ACPI events via procfs
  *
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 4361c4415b4f..fc8c43e76707 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -248,4 +248,10 @@ void acpi_watchdog_init(void);
 static inline void acpi_watchdog_init(void) {}
 #endif
 
+#ifdef CONFIG_ACPI_LPIT
+void acpi_init_lpit(void);
+#else
+static inline void acpi_init_lpit(void) { }
+#endif
+
 #endif /* _ACPI_INTERNAL_H_ */
diff --git a/drivers/acpi/nfit/Kconfig b/drivers/acpi/nfit/Kconfig
index 929ba4da0b30..f7c57e33499e 100644
--- a/drivers/acpi/nfit/Kconfig
+++ b/drivers/acpi/nfit/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ACPI_NFIT
 	tristate "ACPI NVDIMM Firmware Interface Table (NFIT)"
 	depends on PHYS_ADDR_T_64BIT
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index 19cdd8a783a9..76998a51bf99 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -312,7 +312,7 @@ static int __init dmi_disable_osi_win8(const struct dmi_system_id *d)
  * Note that _OSI("Linux")/_OSI("Darwin") determined here can be overridden
  * by acpi_osi=!Linux/acpi_osi=!Darwin command line options.
  */
-static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
 	{
 	.callback = dmi_disable_osi_vista,
 	.ident = "Fujitsu Siemens",
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index db78d353bab1..3bb46cb24a99 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -663,6 +663,29 @@ acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width)
 
 EXPORT_SYMBOL(acpi_os_write_port);
 
+int acpi_os_read_iomem(void __iomem *virt_addr, u64 *value, u32 width)
+{
+
+	switch (width) {
+	case 8:
+		*(u8 *) value = readb(virt_addr);
+		break;
+	case 16:
+		*(u16 *) value = readw(virt_addr);
+		break;
+	case 32:
+		*(u32 *) value = readl(virt_addr);
+		break;
+	case 64:
+		*(u64 *) value = readq(virt_addr);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 acpi_status
 acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width)
 {
@@ -670,6 +693,7 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width)
 	unsigned int size = width / 8;
 	bool unmap = false;
 	u64 dummy;
+	int error;
 
 	rcu_read_lock();
 	virt_addr = acpi_map_vaddr_lookup(phys_addr, size);
@@ -684,22 +708,8 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width)
 	if (!value)
 		value = &dummy;
 
-	switch (width) {
-	case 8:
-		*(u8 *) value = readb(virt_addr);
-		break;
-	case 16:
-		*(u16 *) value = readw(virt_addr);
-		break;
-	case 32:
-		*(u32 *) value = readl(virt_addr);
-		break;
-	case 64:
-		*(u64 *) value = readq(virt_addr);
-		break;
-	default:
-		BUG();
-	}
+	error = acpi_os_read_iomem(virt_addr, value, width);
+	BUG_ON(error);
 
 	if (unmap)
 		iounmap(virt_addr);
diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c
index f62c68e24317..e90b61f7d2db 100644
--- a/drivers/acpi/pci_slot.c
+++ b/drivers/acpi/pci_slot.c
@@ -174,7 +174,7 @@ static int do_sta_before_sun(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id acpi_pci_slot_dmi_table[] __initdata = {
+static const struct dmi_system_id acpi_pci_slot_dmi_table[] __initconst = {
 	/*
 	 * Fujitsu Primequest machines will return 1023 to indicate an
 	 * error if the _SUN method is evaluated on SxFy objects that
diff --git a/drivers/acpi/pmic/intel_pmic.h b/drivers/acpi/pmic/intel_pmic.h
index e8bfa7b865a5..095afc96952e 100644
--- a/drivers/acpi/pmic/intel_pmic.h
+++ b/drivers/acpi/pmic/intel_pmic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INTEL_PMIC_H
 #define __INTEL_PMIC_H
 
diff --git a/drivers/acpi/pmic/tps68470_pmic.c b/drivers/acpi/pmic/tps68470_pmic.c
new file mode 100644
index 000000000000..7f3c567e8168
--- /dev/null
+++ b/drivers/acpi/pmic/tps68470_pmic.c
@@ -0,0 +1,455 @@
+/*
+ * TI TPS68470 PMIC operation region driver
+ *
+ * Copyright (C) 2017 Intel Corporation. All rights reserved.
+ *
+ * Author: Rajmohan Mani <rajmohan.mani@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Based on drivers/acpi/pmic/intel_pmic* drivers
+ */
+
+#include <linux/acpi.h>
+#include <linux/mfd/tps68470.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+struct tps68470_pmic_table {
+	u32 address;		/* operation region address */
+	u32 reg;		/* corresponding register */
+	u32 bitmask;		/* bit mask for power, clock */
+};
+
+#define TI_PMIC_POWER_OPREGION_ID		0xB0
+#define TI_PMIC_VR_VAL_OPREGION_ID		0xB1
+#define TI_PMIC_CLOCK_OPREGION_ID		0xB2
+#define TI_PMIC_CLKFREQ_OPREGION_ID		0xB3
+
+struct tps68470_pmic_opregion {
+	struct mutex lock;
+	struct regmap *regmap;
+};
+
+#define S_IO_I2C_EN	(BIT(0) | BIT(1))
+
+static const struct tps68470_pmic_table power_table[] = {
+	{
+		.address = 0x00,
+		.reg = TPS68470_REG_S_I2C_CTL,
+		.bitmask = S_IO_I2C_EN,
+		/* S_I2C_CTL */
+	},
+	{
+		.address = 0x04,
+		.reg = TPS68470_REG_VCMCTL,
+		.bitmask = BIT(0),
+		/* VCMCTL */
+	},
+	{
+		.address = 0x08,
+		.reg = TPS68470_REG_VAUX1CTL,
+		.bitmask = BIT(0),
+		/* VAUX1_CTL */
+	},
+	{
+		.address = 0x0C,
+		.reg = TPS68470_REG_VAUX2CTL,
+		.bitmask = BIT(0),
+		/* VAUX2CTL */
+	},
+	{
+		.address = 0x10,
+		.reg = TPS68470_REG_VACTL,
+		.bitmask = BIT(0),
+		/* VACTL */
+	},
+	{
+		.address = 0x14,
+		.reg = TPS68470_REG_VDCTL,
+		.bitmask = BIT(0),
+		/* VDCTL */
+	},
+};
+
+/* Table to set voltage regulator value */
+static const struct tps68470_pmic_table vr_val_table[] = {
+	{
+		.address = 0x00,
+		.reg = TPS68470_REG_VSIOVAL,
+		.bitmask = TPS68470_VSIOVAL_IOVOLT_MASK,
+		/* TPS68470_REG_VSIOVAL */
+	},
+	{
+		.address = 0x04,
+		.reg = TPS68470_REG_VIOVAL,
+		.bitmask = TPS68470_VIOVAL_IOVOLT_MASK,
+		/* TPS68470_REG_VIOVAL */
+	},
+	{
+		.address = 0x08,
+		.reg = TPS68470_REG_VCMVAL,
+		.bitmask = TPS68470_VCMVAL_VCVOLT_MASK,
+		/* TPS68470_REG_VCMVAL */
+	},
+	{
+		.address = 0x0C,
+		.reg = TPS68470_REG_VAUX1VAL,
+		.bitmask = TPS68470_VAUX1VAL_AUX1VOLT_MASK,
+		/* TPS68470_REG_VAUX1VAL */
+	},
+	{
+		.address = 0x10,
+		.reg = TPS68470_REG_VAUX2VAL,
+		.bitmask = TPS68470_VAUX2VAL_AUX2VOLT_MASK,
+		/* TPS68470_REG_VAUX2VAL */
+	},
+	{
+		.address = 0x14,
+		.reg = TPS68470_REG_VAVAL,
+		.bitmask = TPS68470_VAVAL_AVOLT_MASK,
+		/* TPS68470_REG_VAVAL */
+	},
+	{
+		.address = 0x18,
+		.reg = TPS68470_REG_VDVAL,
+		.bitmask = TPS68470_VDVAL_DVOLT_MASK,
+		/* TPS68470_REG_VDVAL */
+	},
+};
+
+/* Table to configure clock frequency */
+static const struct tps68470_pmic_table clk_freq_table[] = {
+	{
+		.address = 0x00,
+		.reg = TPS68470_REG_POSTDIV2,
+		.bitmask = BIT(0) | BIT(1),
+		/* TPS68470_REG_POSTDIV2 */
+	},
+	{
+		.address = 0x04,
+		.reg = TPS68470_REG_BOOSTDIV,
+		.bitmask = 0x1F,
+		/* TPS68470_REG_BOOSTDIV */
+	},
+	{
+		.address = 0x08,
+		.reg = TPS68470_REG_BUCKDIV,
+		.bitmask = 0x0F,
+		/* TPS68470_REG_BUCKDIV */
+	},
+	{
+		.address = 0x0C,
+		.reg = TPS68470_REG_PLLSWR,
+		.bitmask = 0x13,
+		/* TPS68470_REG_PLLSWR */
+	},
+	{
+		.address = 0x10,
+		.reg = TPS68470_REG_XTALDIV,
+		.bitmask = 0xFF,
+		/* TPS68470_REG_XTALDIV */
+	},
+	{
+		.address = 0x14,
+		.reg = TPS68470_REG_PLLDIV,
+		.bitmask = 0xFF,
+		/* TPS68470_REG_PLLDIV */
+	},
+	{
+		.address = 0x18,
+		.reg = TPS68470_REG_POSTDIV,
+		.bitmask = 0x83,
+		/* TPS68470_REG_POSTDIV */
+	},
+};
+
+/* Table to configure and enable clocks */
+static const struct tps68470_pmic_table clk_table[] = {
+	{
+		.address = 0x00,
+		.reg = TPS68470_REG_PLLCTL,
+		.bitmask = 0xF5,
+		/* TPS68470_REG_PLLCTL */
+	},
+	{
+		.address = 0x04,
+		.reg = TPS68470_REG_PLLCTL2,
+		.bitmask = BIT(0),
+		/* TPS68470_REG_PLLCTL2 */
+	},
+	{
+		.address = 0x08,
+		.reg = TPS68470_REG_CLKCFG1,
+		.bitmask = TPS68470_CLKCFG1_MODE_A_MASK |
+			TPS68470_CLKCFG1_MODE_B_MASK,
+		/* TPS68470_REG_CLKCFG1 */
+	},
+	{
+		.address = 0x0C,
+		.reg = TPS68470_REG_CLKCFG2,
+		.bitmask = TPS68470_CLKCFG1_MODE_A_MASK |
+			TPS68470_CLKCFG1_MODE_B_MASK,
+		/* TPS68470_REG_CLKCFG2 */
+	},
+};
+
+static int pmic_get_reg_bit(u64 address,
+			    const struct tps68470_pmic_table *table,
+			    const unsigned int table_size, int *reg,
+			    int *bitmask)
+{
+	u64 i;
+
+	i = address / 4;
+	if (i >= table_size)
+		return -ENOENT;
+
+	if (!reg || !bitmask)
+		return -EINVAL;
+
+	*reg = table[i].reg;
+	*bitmask = table[i].bitmask;
+
+	return 0;
+}
+
+static int tps68470_pmic_get_power(struct regmap *regmap, int reg,
+				       int bitmask, u64 *value)
+{
+	unsigned int data;
+
+	if (regmap_read(regmap, reg, &data))
+		return -EIO;
+
+	*value = (data & bitmask) ? 1 : 0;
+	return 0;
+}
+
+static int tps68470_pmic_get_vr_val(struct regmap *regmap, int reg,
+				       int bitmask, u64 *value)
+{
+	unsigned int data;
+
+	if (regmap_read(regmap, reg, &data))
+		return -EIO;
+
+	*value = data & bitmask;
+	return 0;
+}
+
+static int tps68470_pmic_get_clk(struct regmap *regmap, int reg,
+				       int bitmask, u64 *value)
+{
+	unsigned int data;
+
+	if (regmap_read(regmap, reg, &data))
+		return -EIO;
+
+	*value = (data & bitmask) ? 1 : 0;
+	return 0;
+}
+
+static int tps68470_pmic_get_clk_freq(struct regmap *regmap, int reg,
+				       int bitmask, u64 *value)
+{
+	unsigned int data;
+
+	if (regmap_read(regmap, reg, &data))
+		return -EIO;
+
+	*value = data & bitmask;
+	return 0;
+}
+
+static int ti_tps68470_regmap_update_bits(struct regmap *regmap, int reg,
+					int bitmask, u64 value)
+{
+	return regmap_update_bits(regmap, reg, bitmask, value);
+}
+
+static acpi_status tps68470_pmic_common_handler(u32 function,
+					  acpi_physical_address address,
+					  u32 bits, u64 *value,
+					  void *region_context,
+					  int (*get)(struct regmap *,
+						     int, int, u64 *),
+					  int (*update)(struct regmap *,
+							int, int, u64),
+					  const struct tps68470_pmic_table *tbl,
+					  unsigned int tbl_size)
+{
+	struct tps68470_pmic_opregion *opregion = region_context;
+	struct regmap *regmap = opregion->regmap;
+	int reg, ret, bitmask;
+
+	if (bits != 32)
+		return AE_BAD_PARAMETER;
+
+	ret = pmic_get_reg_bit(address, tbl, tbl_size, &reg, &bitmask);
+	if (ret < 0)
+		return AE_BAD_PARAMETER;
+
+	if (function == ACPI_WRITE && *value > bitmask)
+		return AE_BAD_PARAMETER;
+
+	mutex_lock(&opregion->lock);
+
+	ret = (function == ACPI_READ) ?
+		get(regmap, reg, bitmask, value) :
+		update(regmap, reg, bitmask, *value);
+
+	mutex_unlock(&opregion->lock);
+
+	return ret ? AE_ERROR : AE_OK;
+}
+
+static acpi_status tps68470_pmic_cfreq_handler(u32 function,
+					    acpi_physical_address address,
+					    u32 bits, u64 *value,
+					    void *handler_context,
+					    void *region_context)
+{
+	return tps68470_pmic_common_handler(function, address, bits, value,
+				region_context,
+				tps68470_pmic_get_clk_freq,
+				ti_tps68470_regmap_update_bits,
+				clk_freq_table,
+				ARRAY_SIZE(clk_freq_table));
+}
+
+static acpi_status tps68470_pmic_clk_handler(u32 function,
+				       acpi_physical_address address, u32 bits,
+				       u64 *value, void *handler_context,
+				       void *region_context)
+{
+	return tps68470_pmic_common_handler(function, address, bits, value,
+				region_context,
+				tps68470_pmic_get_clk,
+				ti_tps68470_regmap_update_bits,
+				clk_table,
+				ARRAY_SIZE(clk_table));
+}
+
+static acpi_status tps68470_pmic_vrval_handler(u32 function,
+					  acpi_physical_address address,
+					  u32 bits, u64 *value,
+					  void *handler_context,
+					  void *region_context)
+{
+	return tps68470_pmic_common_handler(function, address, bits, value,
+				region_context,
+				tps68470_pmic_get_vr_val,
+				ti_tps68470_regmap_update_bits,
+				vr_val_table,
+				ARRAY_SIZE(vr_val_table));
+}
+
+static acpi_status tps68470_pmic_pwr_handler(u32 function,
+					 acpi_physical_address address,
+					 u32 bits, u64 *value,
+					 void *handler_context,
+					 void *region_context)
+{
+	if (bits != 32)
+		return AE_BAD_PARAMETER;
+
+	/* set/clear for bit 0, bits 0 and 1 together */
+	if (function == ACPI_WRITE &&
+	    !(*value == 0 || *value == 1 || *value == 3)) {
+		return AE_BAD_PARAMETER;
+	}
+
+	return tps68470_pmic_common_handler(function, address, bits, value,
+				region_context,
+				tps68470_pmic_get_power,
+				ti_tps68470_regmap_update_bits,
+				power_table,
+				ARRAY_SIZE(power_table));
+}
+
+static int tps68470_pmic_opregion_probe(struct platform_device *pdev)
+{
+	struct regmap *tps68470_regmap = dev_get_drvdata(pdev->dev.parent);
+	acpi_handle handle = ACPI_HANDLE(pdev->dev.parent);
+	struct device *dev = &pdev->dev;
+	struct tps68470_pmic_opregion *opregion;
+	acpi_status status;
+
+	if (!dev || !tps68470_regmap) {
+		dev_warn(dev, "dev or regmap is NULL\n");
+		return -EINVAL;
+	}
+
+	if (!handle) {
+		dev_warn(dev, "acpi handle is NULL\n");
+		return -ENODEV;
+	}
+
+	opregion = devm_kzalloc(dev, sizeof(*opregion), GFP_KERNEL);
+	if (!opregion)
+		return -ENOMEM;
+
+	mutex_init(&opregion->lock);
+	opregion->regmap = tps68470_regmap;
+
+	status = acpi_install_address_space_handler(handle,
+						    TI_PMIC_POWER_OPREGION_ID,
+						    tps68470_pmic_pwr_handler,
+						    NULL, opregion);
+	if (ACPI_FAILURE(status))
+		goto out_mutex_destroy;
+
+	status = acpi_install_address_space_handler(handle,
+						    TI_PMIC_VR_VAL_OPREGION_ID,
+						    tps68470_pmic_vrval_handler,
+						    NULL, opregion);
+	if (ACPI_FAILURE(status))
+		goto out_remove_power_handler;
+
+	status = acpi_install_address_space_handler(handle,
+						    TI_PMIC_CLOCK_OPREGION_ID,
+						    tps68470_pmic_clk_handler,
+						    NULL, opregion);
+	if (ACPI_FAILURE(status))
+		goto out_remove_vr_val_handler;
+
+	status = acpi_install_address_space_handler(handle,
+						    TI_PMIC_CLKFREQ_OPREGION_ID,
+						    tps68470_pmic_cfreq_handler,
+						    NULL, opregion);
+	if (ACPI_FAILURE(status))
+		goto out_remove_clk_handler;
+
+	return 0;
+
+out_remove_clk_handler:
+	acpi_remove_address_space_handler(handle, TI_PMIC_CLOCK_OPREGION_ID,
+					  tps68470_pmic_clk_handler);
+out_remove_vr_val_handler:
+	acpi_remove_address_space_handler(handle, TI_PMIC_VR_VAL_OPREGION_ID,
+					  tps68470_pmic_vrval_handler);
+out_remove_power_handler:
+	acpi_remove_address_space_handler(handle, TI_PMIC_POWER_OPREGION_ID,
+					  tps68470_pmic_pwr_handler);
+out_mutex_destroy:
+	mutex_destroy(&opregion->lock);
+	return -ENODEV;
+}
+
+static struct platform_driver tps68470_pmic_opregion_driver = {
+	.probe = tps68470_pmic_opregion_probe,
+	.driver = {
+		.name = "tps68470_pmic_opregion",
+	},
+};
+
+builtin_platform_driver(tps68470_pmic_opregion_driver)
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index 85ac848ac6ab..652f19e6c541 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/export.h>
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 2736e25e9dc6..d50a7b6ccddd 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -710,6 +710,8 @@ static DEFINE_RAW_SPINLOCK(c3_lock);
 static void acpi_idle_enter_bm(struct acpi_processor *pr,
 			       struct acpi_processor_cx *cx, bool timer_bc)
 {
+	acpi_unlazy_tlb(smp_processor_id());
+
 	/*
 	 * Must be done before busmaster disable as we might need to
 	 * access HPET !
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
index 7cfbda4d7c51..813f1b78c16a 100644
--- a/drivers/acpi/processor_pdc.c
+++ b/drivers/acpi/processor_pdc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005 Intel Corporation
  * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
@@ -173,7 +174,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
+static const struct dmi_system_id processor_idle_dmi_table[] __initconst = {
 	{
 	set_no_mwait, "Extensa 5220", {
 	DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
index c1c216163de3..e26ea209b63e 100644
--- a/drivers/acpi/property.c
+++ b/drivers/acpi/property.c
@@ -571,10 +571,9 @@ static int acpi_data_get_property_array(const struct acpi_device_data *data,
  *     }
  * }
  *
- * Calling this function with index %2 return %-ENOENT and with index %3
- * returns the last entry. If the property does not contain any more values
- * %-ENODATA is returned. The NULL entry must be single integer and
- * preferably contain value %0.
+ * Calling this function with index %2 or index %3 return %-ENOENT. If the
+ * property does not contain any more values %-ENOENT is returned. The NULL
+ * entry must be single integer and preferably contain value %0.
  *
  * Return: %0 on success, negative error code on failure.
  */
@@ -590,11 +589,11 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 
 	data = acpi_device_data_of_node(fwnode);
 	if (!data)
-		return -EINVAL;
+		return -ENOENT;
 
 	ret = acpi_data_get_property(data, propname, ACPI_TYPE_ANY, &obj);
 	if (ret)
-		return ret;
+		return ret == -EINVAL ? -ENOENT : -EINVAL;
 
 	/*
 	 * The simplest case is when the value is a single reference.  Just
@@ -606,7 +605,7 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 
 		ret = acpi_bus_get_device(obj->reference.handle, &device);
 		if (ret)
-			return ret;
+			return ret == -ENODEV ? -EINVAL : ret;
 
 		args->adev = device;
 		args->nargs = 0;
@@ -622,8 +621,10 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 	 * The index argument is then used to determine which reference
 	 * the caller wants (along with the arguments).
 	 */
-	if (obj->type != ACPI_TYPE_PACKAGE || index >= obj->package.count)
-		return -EPROTO;
+	if (obj->type != ACPI_TYPE_PACKAGE)
+		return -EINVAL;
+	if (index >= obj->package.count)
+		return -ENOENT;
 
 	element = obj->package.elements;
 	end = element + obj->package.count;
@@ -635,7 +636,7 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 			ret = acpi_bus_get_device(element->reference.handle,
 						  &device);
 			if (ret)
-				return -ENODEV;
+				return -EINVAL;
 
 			nargs = 0;
 			element++;
@@ -649,11 +650,11 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 				else if (type == ACPI_TYPE_LOCAL_REFERENCE)
 					break;
 				else
-					return -EPROTO;
+					return -EINVAL;
 			}
 
 			if (nargs > MAX_ACPI_REFERENCE_ARGS)
-				return -EPROTO;
+				return -EINVAL;
 
 			if (idx == index) {
 				args->adev = device;
@@ -670,13 +671,13 @@ int __acpi_node_get_property_reference(const struct fwnode_handle *fwnode,
 				return -ENOENT;
 			element++;
 		} else {
-			return -EPROTO;
+			return -EINVAL;
 		}
 
 		idx++;
 	}
 
-	return -ENODATA;
+	return -ENOENT;
 }
 EXPORT_SYMBOL_GPL(__acpi_node_get_property_reference);
 
@@ -908,11 +909,12 @@ struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
 					    struct fwnode_handle *child)
 {
 	const struct acpi_device *adev = to_acpi_device_node(fwnode);
-	struct acpi_device *child_adev = NULL;
 	const struct list_head *head;
 	struct list_head *next;
 
 	if (!child || is_acpi_device_node(child)) {
+		struct acpi_device *child_adev;
+
 		if (adev)
 			head = &adev->children;
 		else
@@ -922,8 +924,8 @@ struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
 			goto nondev;
 
 		if (child) {
-			child_adev = to_acpi_device_node(child);
-			next = child_adev->node.next;
+			adev = to_acpi_device_node(child);
+			next = adev->node.next;
 			if (next == head) {
 				child = NULL;
 				goto nondev;
@@ -941,8 +943,8 @@ struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode,
 		const struct acpi_data_node *data = to_acpi_data_node(fwnode);
 		struct acpi_data_node *dn;
 
-		if (child_adev)
-			head = &child_adev->data.subnodes;
+		if (adev)
+			head = &adev->data.subnodes;
 		else if (data)
 			head = &data->data.subnodes;
 		else
@@ -1293,3 +1295,16 @@ static int acpi_fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
 DECLARE_ACPI_FWNODE_OPS(acpi_device_fwnode_ops);
 DECLARE_ACPI_FWNODE_OPS(acpi_data_fwnode_ops);
 const struct fwnode_operations acpi_static_fwnode_ops;
+
+bool is_acpi_device_node(const struct fwnode_handle *fwnode)
+{
+	return !IS_ERR_OR_NULL(fwnode) &&
+		fwnode->ops == &acpi_device_fwnode_ops;
+}
+EXPORT_SYMBOL(is_acpi_device_node);
+
+bool is_acpi_data_node(const struct fwnode_handle *fwnode)
+{
+	return !IS_ERR_OR_NULL(fwnode) && fwnode->ops == &acpi_data_fwnode_ops;
+}
+EXPORT_SYMBOL(is_acpi_data_node);
diff --git a/drivers/acpi/reboot.c b/drivers/acpi/reboot.c
index a6c77e8b37bd..71769fd687b2 100644
--- a/drivers/acpi/reboot.c
+++ b/drivers/acpi/reboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/pci.h>
 #include <linux/acpi.h>
diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index d85e010ee2cc..316a0fc785e3 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -381,6 +381,7 @@ unsigned int acpi_dev_get_irq_type(int triggering, int polarity)
 	case ACPI_ACTIVE_BOTH:
 		if (triggering == ACPI_EDGE_SENSITIVE)
 			return IRQ_TYPE_EDGE_BOTH;
+		/* fall through */
 	default:
 		return IRQ_TYPE_NONE;
 	}
diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h
index a57b0762dd7f..06372a37df10 100644
--- a/drivers/acpi/sbshc.h
+++ b/drivers/acpi/sbshc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 struct acpi_smb_hc;
 enum acpi_smb_protocol {
 	SMBUS_WRITE_QUICK = 2,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 602f8ff212f2..e14e964bfe6d 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1505,41 +1505,38 @@ static void acpi_init_coherency(struct acpi_device *adev)
 	adev->flags.coherent_dma = cca;
 }
 
-static int acpi_check_spi_i2c_slave(struct acpi_resource *ares, void *data)
+static int acpi_check_serial_bus_slave(struct acpi_resource *ares, void *data)
 {
-	bool *is_spi_i2c_slave_p = data;
+	bool *is_serial_bus_slave_p = data;
 
 	if (ares->type != ACPI_RESOURCE_TYPE_SERIAL_BUS)
 		return 1;
 
-	/*
-	 * devices that are connected to UART still need to be enumerated to
-	 * platform bus
-	 */
-	if (ares->data.common_serial_bus.type != ACPI_RESOURCE_SERIAL_TYPE_UART)
-		*is_spi_i2c_slave_p = true;
+	*is_serial_bus_slave_p = true;
 
 	 /* no need to do more checking */
 	return -1;
 }
 
-static bool acpi_is_spi_i2c_slave(struct acpi_device *device)
+static bool acpi_is_serial_bus_slave(struct acpi_device *device)
 {
 	struct list_head resource_list;
-	bool is_spi_i2c_slave = false;
+	bool is_serial_bus_slave = false;
 
 	/* Macs use device properties in lieu of _CRS resources */
 	if (x86_apple_machine &&
 	    (fwnode_property_present(&device->fwnode, "spiSclkPeriod") ||
-	     fwnode_property_present(&device->fwnode, "i2cAddress")))
+	     fwnode_property_present(&device->fwnode, "i2cAddress") ||
+	     fwnode_property_present(&device->fwnode, "baud")))
 		return true;
 
 	INIT_LIST_HEAD(&resource_list);
-	acpi_dev_get_resources(device, &resource_list, acpi_check_spi_i2c_slave,
-			       &is_spi_i2c_slave);
+	acpi_dev_get_resources(device, &resource_list,
+			       acpi_check_serial_bus_slave,
+			       &is_serial_bus_slave);
 	acpi_dev_free_resource_list(&resource_list);
 
-	return is_spi_i2c_slave;
+	return is_serial_bus_slave;
 }
 
 void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
@@ -1557,7 +1554,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 	acpi_bus_get_flags(device);
 	device->flags.match_driver = false;
 	device->flags.initialized = true;
-	device->flags.spi_i2c_slave = acpi_is_spi_i2c_slave(device);
+	device->flags.serial_bus_slave = acpi_is_serial_bus_slave(device);
 	acpi_device_clear_enumerated(device);
 	device_initialize(&device->dev);
 	dev_set_uevent_suppress(&device->dev, true);
@@ -1841,10 +1838,10 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used,
 static void acpi_default_enumeration(struct acpi_device *device)
 {
 	/*
-	 * Do not enumerate SPI/I2C slaves as they will be enumerated by their
-	 * respective parents.
+	 * Do not enumerate SPI/I2C/UART slaves as they will be enumerated by
+	 * their respective parents.
 	 */
-	if (!device->flags.spi_i2c_slave) {
+	if (!device->flags.serial_bus_slave) {
 		acpi_create_platform_device(device, NULL);
 		acpi_device_set_enumerated(device);
 	} else {
@@ -1941,7 +1938,7 @@ static void acpi_bus_attach(struct acpi_device *device)
 		return;
 
 	device->flags.match_driver = true;
-	if (ret > 0 && !device->flags.spi_i2c_slave) {
+	if (ret > 0 && !device->flags.serial_bus_slave) {
 		acpi_device_set_enumerated(device);
 		goto ok;
 	}
@@ -1950,7 +1947,7 @@ static void acpi_bus_attach(struct acpi_device *device)
 	if (ret < 0)
 		return;
 
-	if (!device->pnp.type.platform_id && !device->flags.spi_i2c_slave)
+	if (!device->pnp.type.platform_id && !device->flags.serial_bus_slave)
 		acpi_device_set_enumerated(device);
 	else
 		acpi_default_enumeration(device);
@@ -2122,6 +2119,7 @@ int __init acpi_scan_init(void)
 	acpi_int340x_thermal_init();
 	acpi_amba_init();
 	acpi_watchdog_init();
+	acpi_init_lpit();
 
 	acpi_scan_add_handler(&generic_device_handler);
 
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 9fdd014759f8..8082871b409a 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -160,7 +160,15 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
+static bool acpi_sleep_no_lps0;
+
+static int __init init_no_lps0(const struct dmi_system_id *d)
+{
+	acpi_sleep_no_lps0 = true;
+	return 0;
+}
+
+static const struct dmi_system_id acpisleep_dmi_table[] __initconst = {
 	{
 	.callback = init_old_suspend_ordering,
 	.ident = "Abit KN9 (nForce4 variant)",
@@ -343,6 +351,19 @@ static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "80E3"),
 		},
 	},
+	/*
+	 * https://bugzilla.kernel.org/show_bug.cgi?id=196907
+	 * Some Dell XPS13 9360 cannot do suspend-to-idle using the Low Power
+	 * S0 Idle firmware interface.
+	 */
+	{
+	.callback = init_no_lps0,
+	.ident = "Dell XPS13 9360",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "XPS 13 9360"),
+		},
+	},
 	{},
 };
 
@@ -485,6 +506,7 @@ static void acpi_pm_end(void)
 }
 #else /* !CONFIG_ACPI_SLEEP */
 #define acpi_target_sleep_state	ACPI_STATE_S0
+#define acpi_sleep_no_lps0	(false)
 static inline void acpi_sleep_dmi_check(void) {}
 #endif /* CONFIG_ACPI_SLEEP */
 
@@ -863,6 +885,12 @@ static int lps0_device_attach(struct acpi_device *adev,
 	if (lps0_device_handle)
 		return 0;
 
+	if (acpi_sleep_no_lps0) {
+		acpi_handle_info(adev->handle,
+				 "Low Power S0 Idle interface disabled\n");
+		return 0;
+	}
+
 	if (!(acpi_gbl_FADT.flags & ACPI_FADT_LOW_POWER_S0))
 		return 0;
 
diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h
index a82ff74faf7a..41675d24a9bc 100644
--- a/drivers/acpi/sleep.h
+++ b/drivers/acpi/sleep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 extern void acpi_enable_wakeup_devices(u8 sleep_state);
 extern void acpi_disable_wakeup_devices(u8 sleep_state);
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 78a5a23010ab..bc303df60d5d 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sysfs.c - ACPI sysfs interface to userspace.
  */
@@ -168,7 +169,8 @@ module_param_cb(debug_level, &param_ops_debug_level, &acpi_dbg_level, 0644);
 
 static char trace_method_name[1024];
 
-int param_set_trace_method_name(const char *val, const struct kernel_param *kp)
+static int param_set_trace_method_name(const char *val,
+				       const struct kernel_param *kp)
 {
 	u32 saved_flags = 0;
 	bool is_abs_path = true;
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 1d0417b87cb7..551b71a24b85 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -1209,7 +1209,7 @@ static int thermal_psv(const struct dmi_system_id *d) {
 	return 0;
 }
 
-static struct dmi_system_id thermal_dmi_table[] __initdata = {
+static const struct dmi_system_id thermal_dmi_table[] __initconst = {
 	/*
 	 * Award BIOS on this AOpen makes thermal control almost worthless.
 	 * http://bugzilla.kernel.org/show_bug.cgi?id=8842
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index 1638401ab282..9614126bf56e 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * wakeup.c - support wakeup devices
  * Copyright (C) 2004 Li Shaohua <shaohua.li@intel.com>
diff --git a/drivers/acpi/x86/utils.c b/drivers/acpi/x86/utils.c
index b4fbb9929482..ec5b0f190231 100644
--- a/drivers/acpi/x86/utils.c
+++ b/drivers/acpi/x86/utils.c
@@ -71,18 +71,34 @@ static const struct always_present_id always_present_ids[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "Venue 11 Pro 7130"),
 	      }),
 	/*
-	 * The GPD win BIOS dated 20170320 has disabled the accelerometer, the
+	 * The GPD win BIOS dated 20170221 has disabled the accelerometer, the
 	 * drivers sometimes cause crashes under Windows and this is how the
 	 * manufacturer has solved this :| Note that the the DMI data is less
 	 * generic then it seems, a board_vendor of "AMI Corporation" is quite
 	 * rare and a board_name of "Default String" also is rare.
+	 *
+	 * Unfortunately the GPD pocket also uses these strings and its BIOS
+	 * was copy-pasted from the GPD win, so it has a disabled KIOX000A
+	 * node which we should not enable, thus we also check the BIOS date.
 	 */
 	ENTRY("KIOX000A", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
 		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		DMI_MATCH(DMI_BIOS_DATE, "02/21/2017")
+	      }),
+	ENTRY("KIOX000A", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
+		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		DMI_MATCH(DMI_BIOS_DATE, "03/20/2017")
 	      }),
+	ENTRY("KIOX000A", "1", ICPU(INTEL_FAM6_ATOM_AIRMONT), {
+		DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+		DMI_MATCH(DMI_BOARD_NAME, "Default string"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		DMI_MATCH(DMI_BIOS_DATE, "05/25/2017")
+	      }),
 };
 
 bool acpi_device_always_present(struct acpi_device *adev)
diff --git a/drivers/amba/Kconfig b/drivers/amba/Kconfig
index 294ba6f36396..fb6c7e0b4cce 100644
--- a/drivers/amba/Kconfig
+++ b/drivers/amba/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ARM_AMBA
 	bool
 
diff --git a/drivers/android/Kconfig b/drivers/android/Kconfig
index 9801d852bd56..7dce3795b887 100644
--- a/drivers/android/Kconfig
+++ b/drivers/android/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Android"
 
 config ANDROID
diff --git a/drivers/android/binder.c b/drivers/android/binder.c
index d055b3f2a207..fddf76ef5bd6 100644
--- a/drivers/android/binder.c
+++ b/drivers/android/binder.c
@@ -2217,7 +2217,7 @@ static void binder_transaction_buffer_release(struct binder_proc *proc,
 				       debug_id, (u64)fda->num_fds);
 				continue;
 			}
-			fd_array = (u32 *)(parent_buffer + fda->parent_offset);
+			fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
 			for (fd_index = 0; fd_index < fda->num_fds; fd_index++)
 				task_close_fd(proc, fd_array[fd_index]);
 		} break;
@@ -2326,7 +2326,6 @@ static int binder_translate_handle(struct flat_binder_object *fp,
 			     (u64)node->ptr);
 		binder_node_unlock(node);
 	} else {
-		int ret;
 		struct binder_ref_data dest_rdata;
 
 		binder_node_unlock(node);
@@ -2442,7 +2441,7 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
 	 */
 	parent_buffer = parent->buffer -
 		binder_alloc_get_user_buffer_offset(&target_proc->alloc);
-	fd_array = (u32 *)(parent_buffer + fda->parent_offset);
+	fd_array = (u32 *)(parent_buffer + (uintptr_t)fda->parent_offset);
 	if (!IS_ALIGNED((unsigned long)fd_array, sizeof(u32))) {
 		binder_user_error("%d:%d parent offset not aligned correctly.\n",
 				  proc->pid, thread->pid);
@@ -2508,7 +2507,7 @@ static int binder_fixup_parent(struct binder_transaction *t,
 				  proc->pid, thread->pid);
 		return -EINVAL;
 	}
-	parent_buffer = (u8 *)(parent->buffer -
+	parent_buffer = (u8 *)((uintptr_t)parent->buffer -
 			binder_alloc_get_user_buffer_offset(
 				&target_proc->alloc));
 	*(binder_uintptr_t *)(parent_buffer + bp->parent_offset) = bp->buffer;
@@ -2583,6 +2582,48 @@ static bool binder_proc_transaction(struct binder_transaction *t,
 	return true;
 }
 
+/**
+ * binder_get_node_refs_for_txn() - Get required refs on node for txn
+ * @node:         struct binder_node for which to get refs
+ * @proc:         returns @node->proc if valid
+ * @error:        if no @proc then returns BR_DEAD_REPLY
+ *
+ * User-space normally keeps the node alive when creating a transaction
+ * since it has a reference to the target. The local strong ref keeps it
+ * alive if the sending process dies before the target process processes
+ * the transaction. If the source process is malicious or has a reference
+ * counting bug, relying on the local strong ref can fail.
+ *
+ * Since user-space can cause the local strong ref to go away, we also take
+ * a tmpref on the node to ensure it survives while we are constructing
+ * the transaction. We also need a tmpref on the proc while we are
+ * constructing the transaction, so we take that here as well.
+ *
+ * Return: The target_node with refs taken or NULL if no @node->proc is NULL.
+ * Also sets @proc if valid. If the @node->proc is NULL indicating that the
+ * target proc has died, @error is set to BR_DEAD_REPLY
+ */
+static struct binder_node *binder_get_node_refs_for_txn(
+		struct binder_node *node,
+		struct binder_proc **procp,
+		uint32_t *error)
+{
+	struct binder_node *target_node = NULL;
+
+	binder_node_inner_lock(node);
+	if (node->proc) {
+		target_node = node;
+		binder_inc_node_nilocked(node, 1, 0, NULL);
+		binder_inc_node_tmpref_ilocked(node);
+		node->proc->tmp_ref++;
+		*procp = node->proc;
+	} else
+		*error = BR_DEAD_REPLY;
+	binder_node_inner_unlock(node);
+
+	return target_node;
+}
+
 static void binder_transaction(struct binder_proc *proc,
 			       struct binder_thread *thread,
 			       struct binder_transaction_data *tr, int reply,
@@ -2686,43 +2727,35 @@ static void binder_transaction(struct binder_proc *proc,
 			ref = binder_get_ref_olocked(proc, tr->target.handle,
 						     true);
 			if (ref) {
-				binder_inc_node(ref->node, 1, 0, NULL);
-				target_node = ref->node;
-			}
-			binder_proc_unlock(proc);
-			if (target_node == NULL) {
+				target_node = binder_get_node_refs_for_txn(
+						ref->node, &target_proc,
+						&return_error);
+			} else {
 				binder_user_error("%d:%d got transaction to invalid handle\n",
-					proc->pid, thread->pid);
+						  proc->pid, thread->pid);
 				return_error = BR_FAILED_REPLY;
-				return_error_param = -EINVAL;
-				return_error_line = __LINE__;
-				goto err_invalid_target_handle;
 			}
+			binder_proc_unlock(proc);
 		} else {
 			mutex_lock(&context->context_mgr_node_lock);
 			target_node = context->binder_context_mgr_node;
-			if (target_node == NULL) {
+			if (target_node)
+				target_node = binder_get_node_refs_for_txn(
+						target_node, &target_proc,
+						&return_error);
+			else
 				return_error = BR_DEAD_REPLY;
-				mutex_unlock(&context->context_mgr_node_lock);
-				return_error_line = __LINE__;
-				goto err_no_context_mgr_node;
-			}
-			binder_inc_node(target_node, 1, 0, NULL);
 			mutex_unlock(&context->context_mgr_node_lock);
 		}
-		e->to_node = target_node->debug_id;
-		binder_node_lock(target_node);
-		target_proc = target_node->proc;
-		if (target_proc == NULL) {
-			binder_node_unlock(target_node);
-			return_error = BR_DEAD_REPLY;
+		if (!target_node) {
+			/*
+			 * return_error is set above
+			 */
+			return_error_param = -EINVAL;
 			return_error_line = __LINE__;
 			goto err_dead_binder;
 		}
-		binder_inner_proc_lock(target_proc);
-		target_proc->tmp_ref++;
-		binder_inner_proc_unlock(target_proc);
-		binder_node_unlock(target_node);
+		e->to_node = target_node->debug_id;
 		if (security_binder_transaction(proc->tsk,
 						target_proc->tsk) < 0) {
 			return_error = BR_FAILED_REPLY;
@@ -3072,6 +3105,8 @@ static void binder_transaction(struct binder_proc *proc,
 	if (target_thread)
 		binder_thread_dec_tmpref(target_thread);
 	binder_proc_dec_tmpref(target_proc);
+	if (target_node)
+		binder_dec_node_tmpref(target_node);
 	/*
 	 * write barrier to synchronize with initialization
 	 * of log entry
@@ -3083,6 +3118,7 @@ static void binder_transaction(struct binder_proc *proc,
 err_dead_proc_or_thread:
 	return_error = BR_DEAD_REPLY;
 	return_error_line = __LINE__;
+	binder_dequeue_work(proc, tcomplete);
 err_translate_failed:
 err_bad_object_type:
 err_bad_offset:
@@ -3090,6 +3126,8 @@ err_bad_parent:
 err_copy_data_failed:
 	trace_binder_transaction_failed_buffer_release(t->buffer);
 	binder_transaction_buffer_release(target_proc, t->buffer, offp);
+	if (target_node)
+		binder_dec_node_tmpref(target_node);
 	target_node = NULL;
 	t->buffer->transaction = NULL;
 	binder_alloc_free_buf(&target_proc->alloc, t->buffer);
@@ -3104,13 +3142,14 @@ err_bad_call_stack:
 err_empty_call_stack:
 err_dead_binder:
 err_invalid_target_handle:
-err_no_context_mgr_node:
 	if (target_thread)
 		binder_thread_dec_tmpref(target_thread);
 	if (target_proc)
 		binder_proc_dec_tmpref(target_proc);
-	if (target_node)
+	if (target_node) {
 		binder_dec_node(target_node, 1, 0);
+		binder_dec_node_tmpref(target_node);
+	}
 
 	binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
 		     "%d:%d transaction failed %d/%d, size %lld-%lld line %d\n",
@@ -3623,12 +3662,6 @@ static void binder_stat_br(struct binder_proc *proc,
 	}
 }
 
-static int binder_has_thread_work(struct binder_thread *thread)
-{
-	return !binder_worklist_empty(thread->proc, &thread->todo) ||
-		thread->looper_need_return;
-}
-
 static int binder_put_node_cmd(struct binder_proc *proc,
 			       struct binder_thread *thread,
 			       void __user **ptrp,
@@ -4258,12 +4291,9 @@ static unsigned int binder_poll(struct file *filp,
 
 	binder_inner_proc_unlock(thread->proc);
 
-	if (binder_has_work(thread, wait_for_proc_work))
-		return POLLIN;
-
 	poll_wait(filp, &thread->wait, wait);
 
-	if (binder_has_thread_work(thread))
+	if (binder_has_work(thread, wait_for_proc_work))
 		return POLLIN;
 
 	return 0;
diff --git a/drivers/android/binder_alloc.c b/drivers/android/binder_alloc.c
index 8fe165844e47..c2819a3d58a6 100644
--- a/drivers/android/binder_alloc.c
+++ b/drivers/android/binder_alloc.c
@@ -215,17 +215,12 @@ static int binder_update_page_range(struct binder_alloc *alloc, int allocate,
 		}
 	}
 
-	if (!vma && need_mm)
-		mm = get_task_mm(alloc->tsk);
+	if (!vma && need_mm && mmget_not_zero(alloc->vma_vm_mm))
+		mm = alloc->vma_vm_mm;
 
 	if (mm) {
 		down_write(&mm->mmap_sem);
 		vma = alloc->vma;
-		if (vma && mm != alloc->vma_vm_mm) {
-			pr_err("%d: vma mm and task mm mismatch\n",
-				alloc->pid);
-			vma = NULL;
-		}
 	}
 
 	if (!vma && need_mm) {
@@ -565,7 +560,7 @@ static void binder_delete_free_buffer(struct binder_alloc *alloc,
 		binder_alloc_debug(BINDER_DEBUG_BUFFER_ALLOC,
 				   "%d: merge free, buffer %pK do not share page with %pK or %pK\n",
 				   alloc->pid, buffer->data,
-				   prev->data, next->data);
+				   prev->data, next ? next->data : NULL);
 		binder_update_page_range(alloc, 0, buffer_start_page(buffer),
 					 buffer_start_page(buffer) + PAGE_SIZE,
 					 NULL);
@@ -720,6 +715,7 @@ int binder_alloc_mmap_handler(struct binder_alloc *alloc,
 	barrier();
 	alloc->vma = vma;
 	alloc->vma_vm_mm = vma->vm_mm;
+	mmgrab(alloc->vma_vm_mm);
 
 	return 0;
 
@@ -795,6 +791,8 @@ void binder_alloc_deferred_release(struct binder_alloc *alloc)
 		vfree(alloc->buffer);
 	}
 	mutex_unlock(&alloc->mutex);
+	if (alloc->vma_vm_mm)
+		mmdrop(alloc->vma_vm_mm);
 
 	binder_alloc_debug(BINDER_DEBUG_OPEN_CLOSE,
 		     "%s: %d buffers %d, pages %d\n",
@@ -889,7 +887,6 @@ int binder_alloc_get_allocated_count(struct binder_alloc *alloc)
 void binder_alloc_vma_close(struct binder_alloc *alloc)
 {
 	WRITE_ONCE(alloc->vma, NULL);
-	WRITE_ONCE(alloc->vma_vm_mm, NULL);
 }
 
 /**
@@ -913,6 +910,7 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
 	struct binder_alloc *alloc;
 	uintptr_t page_addr;
 	size_t index;
+	struct vm_area_struct *vma;
 
 	alloc = page->alloc;
 	if (!mutex_trylock(&alloc->mutex))
@@ -923,16 +921,22 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
 
 	index = page - alloc->pages;
 	page_addr = (uintptr_t)alloc->buffer + index * PAGE_SIZE;
-	if (alloc->vma) {
-		mm = get_task_mm(alloc->tsk);
-		if (!mm)
-			goto err_get_task_mm_failed;
+	vma = alloc->vma;
+	if (vma) {
+		if (!mmget_not_zero(alloc->vma_vm_mm))
+			goto err_mmget;
+		mm = alloc->vma_vm_mm;
 		if (!down_write_trylock(&mm->mmap_sem))
 			goto err_down_write_mmap_sem_failed;
+	}
+
+	list_lru_isolate(lru, item);
+	spin_unlock(lock);
 
+	if (vma) {
 		trace_binder_unmap_user_start(alloc, index);
 
-		zap_page_range(alloc->vma,
+		zap_page_range(vma,
 			       page_addr + alloc->user_buffer_offset,
 			       PAGE_SIZE);
 
@@ -950,14 +954,13 @@ enum lru_status binder_alloc_free_page(struct list_head *item,
 
 	trace_binder_unmap_kernel_end(alloc, index);
 
-	list_lru_isolate(lru, item);
-
+	spin_lock(lock);
 	mutex_unlock(&alloc->mutex);
-	return LRU_REMOVED;
+	return LRU_REMOVED_RETRY;
 
 err_down_write_mmap_sem_failed:
-	mmput(mm);
-err_get_task_mm_failed:
+	mmput_async(mm);
+err_mmget:
 err_page_already_freed:
 	mutex_unlock(&alloc->mutex);
 err_get_alloc_mutex_failed:
@@ -996,7 +999,6 @@ struct shrinker binder_shrinker = {
  */
 void binder_alloc_init(struct binder_alloc *alloc)
 {
-	alloc->tsk = current->group_leader;
 	alloc->pid = current->group_leader->pid;
 	mutex_init(&alloc->mutex);
 	INIT_LIST_HEAD(&alloc->buffers);
diff --git a/drivers/android/binder_alloc.h b/drivers/android/binder_alloc.h
index a3a3602c689c..2dd33b6df104 100644
--- a/drivers/android/binder_alloc.h
+++ b/drivers/android/binder_alloc.h
@@ -100,7 +100,6 @@ struct binder_lru_page {
  */
 struct binder_alloc {
 	struct mutex mutex;
-	struct task_struct *tsk;
 	struct vm_area_struct *vma;
 	struct mm_struct *vma_vm_mm;
 	void *buffer;
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 488c93724220..cb5339166563 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # SATA/PATA driver configuration
 #
diff --git a/drivers/ata/Makefile b/drivers/ata/Makefile
index ff9cd2e37458..8daec3e657f8 100644
--- a/drivers/ata/Makefile
+++ b/drivers/ata/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_ATA)		+= libata.o
 
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index cb9b0e9090e3..9f78bb03bb76 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -621,8 +621,11 @@ static void ahci_pci_save_initial_config(struct pci_dev *pdev,
 static int ahci_pci_reset_controller(struct ata_host *host)
 {
 	struct pci_dev *pdev = to_pci_dev(host->dev);
+	int rc;
 
-	ahci_reset_controller(host);
+	rc = ahci_reset_controller(host);
+	if (rc)
+		return rc;
 
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 		struct ahci_host_priv *hpriv = host->private_data;
diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 8b61123d2c3c..749fd94441b0 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -303,6 +303,7 @@ struct ahci_em_priv {
 	unsigned long saved_activity;
 	unsigned long activity;
 	unsigned long led_state;
+	struct ata_link *link;
 };
 
 struct ahci_port_priv {
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 8401c3b5be92..b702c20fbc2b 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -492,6 +492,7 @@ static const struct ich_laptop ich_laptop[] = {
 	{ 0x27DF, 0x152D, 0x0778 },	/* ICH7 on unknown Intel */
 	{ 0x24CA, 0x1025, 0x0061 },	/* ICH4 on ACER Aspire 2023WLMi */
 	{ 0x24CA, 0x1025, 0x003d },	/* ICH4 on ACER TM290 */
+	{ 0x24CA, 0x10CF, 0x11AB },	/* ICH4M on Fujitsu-Siemens Lifebook S6120 */
 	{ 0x266F, 0x1025, 0x0066 },	/* ICH6 on ACER Aspire 1694WLMi */
 	{ 0x2653, 0x1043, 0x82D8 },	/* ICH6M on Asus Eee 701 */
 	{ 0x27df, 0x104d, 0x900e },	/* ICH7 on Sony TZ-90 */
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 3e286d86ab42..a0de7a38430c 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -968,12 +968,12 @@ static void ahci_sw_activity(struct ata_link *link)
 		mod_timer(&emp->timer, jiffies + msecs_to_jiffies(10));
 }
 
-static void ahci_sw_activity_blink(unsigned long arg)
+static void ahci_sw_activity_blink(struct timer_list *t)
 {
-	struct ata_link *link = (struct ata_link *)arg;
+	struct ahci_em_priv *emp = from_timer(emp, t, timer);
+	struct ata_link *link = emp->link;
 	struct ata_port *ap = link->ap;
-	struct ahci_port_priv *pp = ap->private_data;
-	struct ahci_em_priv *emp = &pp->em_priv[link->pmp];
+
 	unsigned long led_message = emp->led_state;
 	u32 activity_led_state;
 	unsigned long flags;
@@ -1020,7 +1020,8 @@ static void ahci_init_sw_activity(struct ata_link *link)
 
 	/* init activity stats, setup timer */
 	emp->saved_activity = emp->activity = 0;
-	setup_timer(&emp->timer, ahci_sw_activity_blink, (unsigned long)link);
+	emp->link = link;
+	timer_setup(&emp->timer, ahci_sw_activity_blink, 0);
 
 	/* check our blink policy and set flag for link if it's enabled */
 	if (emp->blink_policy)
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 1945a8ea2099..b8ac4902d312 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -3234,19 +3234,19 @@ static const struct ata_timing ata_timing[] = {
 };
 
 #define ENOUGH(v, unit)		(((v)-1)/(unit)+1)
-#define EZ(v, unit)		((v)?ENOUGH(v, unit):0)
+#define EZ(v, unit)		((v)?ENOUGH(((v) * 1000), unit):0)
 
 static void ata_timing_quantize(const struct ata_timing *t, struct ata_timing *q, int T, int UT)
 {
-	q->setup	= EZ(t->setup      * 1000,  T);
-	q->act8b	= EZ(t->act8b      * 1000,  T);
-	q->rec8b	= EZ(t->rec8b      * 1000,  T);
-	q->cyc8b	= EZ(t->cyc8b      * 1000,  T);
-	q->active	= EZ(t->active     * 1000,  T);
-	q->recover	= EZ(t->recover    * 1000,  T);
-	q->dmack_hold	= EZ(t->dmack_hold * 1000,  T);
-	q->cycle	= EZ(t->cycle      * 1000,  T);
-	q->udma		= EZ(t->udma       * 1000, UT);
+	q->setup	= EZ(t->setup,       T);
+	q->act8b	= EZ(t->act8b,       T);
+	q->rec8b	= EZ(t->rec8b,       T);
+	q->cyc8b	= EZ(t->cyc8b,       T);
+	q->active	= EZ(t->active,      T);
+	q->recover	= EZ(t->recover,     T);
+	q->dmack_hold	= EZ(t->dmack_hold,  T);
+	q->cycle	= EZ(t->cycle,       T);
+	q->udma		= EZ(t->udma,       UT);
 }
 
 void ata_timing_merge(const struct ata_timing *a, const struct ata_timing *b,
@@ -5979,9 +5979,8 @@ struct ata_port *ata_port_alloc(struct ata_host *host)
 	INIT_LIST_HEAD(&ap->eh_done_q);
 	init_waitqueue_head(&ap->eh_wait_q);
 	init_completion(&ap->park_req_pending);
-	setup_deferrable_timer(&ap->fastdrain_timer,
-			       ata_eh_fastdrain_timerfn,
-			       (unsigned long)ap);
+	timer_setup(&ap->fastdrain_timer, ata_eh_fastdrain_timerfn,
+		    TIMER_DEFERRABLE);
 
 	ap->cbl = ATA_CBL_NONE;
 
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index e4effef0c83f..ece6fd91a947 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -879,9 +879,9 @@ static int ata_eh_nr_in_flight(struct ata_port *ap)
 	return nr;
 }
 
-void ata_eh_fastdrain_timerfn(unsigned long arg)
+void ata_eh_fastdrain_timerfn(struct timer_list *t)
 {
-	struct ata_port *ap = (void *)arg;
+	struct ata_port *ap = from_timer(ap, t, fastdrain_timer);
 	unsigned long flags;
 	int cnt;
 
diff --git a/drivers/ata/libata-transport.h b/drivers/ata/libata-transport.h
index 2820cf864f11..08a57fb9dc61 100644
--- a/drivers/ata/libata-transport.h
+++ b/drivers/ata/libata-transport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBATA_TRANSPORT_H
 #define _LIBATA_TRANSPORT_H
 
diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c
index 23a62e4015d0..de4ddd0e8550 100644
--- a/drivers/ata/libata-zpodd.c
+++ b/drivers/ata/libata-zpodd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/libata.h>
 #include <linux/cdrom.h>
 #include <linux/pm_runtime.h>
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 839d487394b7..08a245b76417 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -154,7 +154,7 @@ extern void ata_internal_cmd_timed_out(struct ata_device *dev, u8 cmd);
 extern void ata_eh_acquire(struct ata_port *ap);
 extern void ata_eh_release(struct ata_port *ap);
 extern void ata_scsi_error(struct Scsi_Host *host);
-extern void ata_eh_fastdrain_timerfn(unsigned long arg);
+extern void ata_eh_fastdrain_timerfn(struct timer_list *t);
 extern void ata_qc_schedule_eh(struct ata_queued_cmd *qc);
 extern void ata_dev_disable(struct ata_device *dev);
 extern void ata_eh_detach_dev(struct ata_device *dev);
diff --git a/drivers/ata/sata_gemini.h b/drivers/ata/sata_gemini.h
index ca1837a394c8..6f6e691d6007 100644
--- a/drivers/ata/sata_gemini.h
+++ b/drivers/ata/sata_gemini.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Header for the Gemini SATA bridge */
 #ifndef SATA_GEMINI_H
 #define SATA_GEMINI_H
diff --git a/drivers/ata/sis.h b/drivers/ata/sis.h
index f7f3eebe666c..0be49691fb24 100644
--- a/drivers/ata/sis.h
+++ b/drivers/ata/sis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 struct ata_port_info;
 
diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig
index 31c60101a69a..2e2efa577437 100644
--- a/drivers/atm/Kconfig
+++ b/drivers/atm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # ATM device configuration
 #
diff --git a/drivers/atm/Makefile b/drivers/atm/Makefile
index c6c9ee9f5da2..aa191616a72e 100644
--- a/drivers/atm/Makefile
+++ b/drivers/atm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux network (ATM) device drivers.
 #
diff --git a/drivers/atm/eni.h b/drivers/atm/eni.h
index 565e53a5cb78..de1ed802cbf8 100644
--- a/drivers/atm/eni.h
+++ b/drivers/atm/eni.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/eni.h - Efficient Networks ENI155P device driver declarations */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/drivers/atm/fore200e.h b/drivers/atm/fore200e.h
index ba34a02b717d..c8a02c8fba15 100644
--- a/drivers/atm/fore200e.h
+++ b/drivers/atm/fore200e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FORE200E_H
 #define _FORE200E_H
 
diff --git a/drivers/atm/idt77105.c b/drivers/atm/idt77105.c
index 082aa02abc57..57af9fd198e4 100644
--- a/drivers/atm/idt77105.c
+++ b/drivers/atm/idt77105.c
@@ -49,8 +49,8 @@ static void idt77105_stats_timer_func(unsigned long);
 static void idt77105_restart_timer_func(unsigned long);
 
 
-static DEFINE_TIMER(stats_timer, idt77105_stats_timer_func, 0, 0);
-static DEFINE_TIMER(restart_timer, idt77105_restart_timer_func, 0, 0);
+static DEFINE_TIMER(stats_timer, idt77105_stats_timer_func);
+static DEFINE_TIMER(restart_timer, idt77105_restart_timer_func);
 static int start_timer = 1;
 static struct idt77105_priv *idt77105_all = NULL;
 
diff --git a/drivers/atm/idt77105.h b/drivers/atm/idt77105.h
index 3fd2bc899761..8dfea9e361de 100644
--- a/drivers/atm/idt77105.h
+++ b/drivers/atm/idt77105.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/idt77105.h - IDT77105 (PHY) declarations */
  
 /* Written 1999 by Greg Banks, NEC Australia <gnb@linuxfan.com>. Based on suni.h */
diff --git a/drivers/atm/idt77252_tables.h b/drivers/atm/idt77252_tables.h
index b6c8ee512fb4..12b81e046a7b 100644
--- a/drivers/atm/idt77252_tables.h
+++ b/drivers/atm/idt77252_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Do not edit, automatically generated by `./genrtbl'.
  *
  * Cell Line Rate: 353207.55 (155520000 bps)
diff --git a/drivers/atm/iphase.c b/drivers/atm/iphase.c
index fc72b763fdd7..ad6b582c268e 100644
--- a/drivers/atm/iphase.c
+++ b/drivers/atm/iphase.c
@@ -76,7 +76,7 @@ static IADEV *ia_dev[8];
 static struct atm_dev *_ia_dev[8];
 static int iadev_count;
 static void ia_led_timer(unsigned long arg);
-static DEFINE_TIMER(ia_timer, ia_led_timer, 0, 0);
+static DEFINE_TIMER(ia_timer, ia_led_timer);
 static int IA_TX_BUF = DFL_TX_BUFFERS, IA_TX_BUF_SZ = DFL_TX_BUF_SZ;
 static int IA_RX_BUF = DFL_RX_BUFFERS, IA_RX_BUF_SZ = DFL_RX_BUF_SZ;
 static uint IADebugFlag = /* IF_IADBG_ERR | IF_IADBG_CBR| IF_IADBG_INIT_ADAPTER
diff --git a/drivers/atm/midway.h b/drivers/atm/midway.h
index d8bec0f2a71c..d47307adc0c9 100644
--- a/drivers/atm/midway.h
+++ b/drivers/atm/midway.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/midway.h - Efficient Networks Midway (SAR) description */
  
 /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/drivers/atm/nicstar.h b/drivers/atm/nicstar.h
index 9bc27ea5088e..1b7f1dfc1735 100644
--- a/drivers/atm/nicstar.h
+++ b/drivers/atm/nicstar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * nicstar.h
  *
diff --git a/drivers/atm/nicstarmac.c b/drivers/atm/nicstarmac.c
index f594526f8c6d..e0dda9062e6b 100644
--- a/drivers/atm/nicstarmac.c
+++ b/drivers/atm/nicstarmac.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * this file included by nicstar.c
  */
diff --git a/drivers/atm/solos-attrlist.c b/drivers/atm/solos-attrlist.c
index 9a676ee30824..1830d1b8619f 100644
--- a/drivers/atm/solos-attrlist.c
+++ b/drivers/atm/solos-attrlist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 SOLOS_ATTR_RO(DriverVersion)
 SOLOS_ATTR_RO(APIVersion)
 SOLOS_ATTR_RO(FirmwareVersion)
diff --git a/drivers/atm/suni.h b/drivers/atm/suni.h
index 7e3e656b3993..d28a50d47d8b 100644
--- a/drivers/atm/suni.h
+++ b/drivers/atm/suni.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * drivers/atm/suni.h - S/UNI PHY driver
  */
diff --git a/drivers/atm/tonga.h b/drivers/atm/tonga.h
index 672da96243ca..771b3f95246c 100644
--- a/drivers/atm/tonga.h
+++ b/drivers/atm/tonga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/tonga.h - Efficient Networks Tonga (PCI bridge) declarations */
  
 /* Written 1995 by Werner Almesberger, EPFL LRC */
diff --git a/drivers/atm/uPD98401.h b/drivers/atm/uPD98401.h
index 0ab36503a4b7..f766a5ef0c5d 100644
--- a/drivers/atm/uPD98401.h
+++ b/drivers/atm/uPD98401.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/uPD98401.h - NEC uPD98401 (SAR) declarations */
  
 /* Written 1995 by Werner Almesberger, EPFL LRC */
diff --git a/drivers/atm/uPD98402.h b/drivers/atm/uPD98402.h
index c947214db7e3..437cfaa20c96 100644
--- a/drivers/atm/uPD98402.h
+++ b/drivers/atm/uPD98402.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/uPD98402.h - NEC uPD98402 (PHY) declarations */
  
 /* Written 1995 by Werner Almesberger, EPFL LRC */
diff --git a/drivers/atm/zatm.h b/drivers/atm/zatm.h
index ae9165ce15a0..8204369fe825 100644
--- a/drivers/atm/zatm.h
+++ b/drivers/atm/zatm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/zatm.h - ZeitNet ZN122x device driver declarations */
 
 /* Written 1995-1998 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/drivers/atm/zeprom.h b/drivers/atm/zeprom.h
index 019bb82490e9..88e01f808a86 100644
--- a/drivers/atm/zeprom.h
+++ b/drivers/atm/zeprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* drivers/atm/zeprom.h - ZeitNet ZN122x EEPROM (NM93C46) declarations */
 
 /* Written 1995,1996 by Werner Almesberger, EPFL LRC */
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index 9ae6681c90ad..d7d21118d3e0 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # For a description of the syntax of this configuration file,
 # see Documentation/kbuild/kconfig-language.txt.
diff --git a/drivers/auxdisplay/Makefile b/drivers/auxdisplay/Makefile
index 2b8af3dc5e42..7ac6776ca3f6 100644
--- a/drivers/auxdisplay/Makefile
+++ b/drivers/auxdisplay/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel auxiliary displays device drivers.
 #
diff --git a/drivers/auxdisplay/charlcd.c b/drivers/auxdisplay/charlcd.c
index cfeb049a01ef..642afd88870b 100644
--- a/drivers/auxdisplay/charlcd.c
+++ b/drivers/auxdisplay/charlcd.c
@@ -647,18 +647,25 @@ static ssize_t charlcd_write(struct file *file, const char __user *buf,
 static int charlcd_open(struct inode *inode, struct file *file)
 {
 	struct charlcd_priv *priv = to_priv(the_charlcd);
+	int ret;
 
+	ret = -EBUSY;
 	if (!atomic_dec_and_test(&charlcd_available))
-		return -EBUSY;	/* open only once at a time */
+		goto fail;	/* open only once at a time */
 
+	ret = -EPERM;
 	if (file->f_mode & FMODE_READ)	/* device is write-only */
-		return -EPERM;
+		goto fail;
 
 	if (priv->must_clear) {
 		charlcd_clear_display(&priv->lcd);
 		priv->must_clear = false;
 	}
 	return nonseekable_open(inode, file);
+
+ fail:
+	atomic_inc(&charlcd_available);
+	return ret;
 }
 
 static int charlcd_release(struct inode *inode, struct file *file)
diff --git a/drivers/auxdisplay/img-ascii-lcd.c b/drivers/auxdisplay/img-ascii-lcd.c
index 25306fa27251..db040b378224 100644
--- a/drivers/auxdisplay/img-ascii-lcd.c
+++ b/drivers/auxdisplay/img-ascii-lcd.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -229,9 +229,9 @@ MODULE_DEVICE_TABLE(of, img_ascii_lcd_matches);
  * Scroll the current message along the LCD by one character, rearming the
  * timer if required.
  */
-static void img_ascii_lcd_scroll(unsigned long arg)
+static void img_ascii_lcd_scroll(struct timer_list *t)
 {
-	struct img_ascii_lcd_ctx *ctx = (struct img_ascii_lcd_ctx *)arg;
+	struct img_ascii_lcd_ctx *ctx = from_timer(ctx, t, timer);
 	unsigned int i, ch = ctx->scroll_pos;
 	unsigned int num_chars = ctx->cfg->num_chars;
 
@@ -299,7 +299,7 @@ static int img_ascii_lcd_display(struct img_ascii_lcd_ctx *ctx,
 	ctx->scroll_pos = 0;
 
 	/* update the LCD */
-	img_ascii_lcd_scroll((unsigned long)ctx);
+	img_ascii_lcd_scroll(&ctx->timer);
 
 	return 0;
 }
@@ -395,9 +395,7 @@ static int img_ascii_lcd_probe(struct platform_device *pdev)
 	ctx->scroll_rate = HZ / 2;
 
 	/* initialise a timer for scrolling the message */
-	init_timer(&ctx->timer);
-	ctx->timer.function = img_ascii_lcd_scroll;
-	ctx->timer.data = (unsigned long)ctx;
+	timer_setup(&ctx->timer, img_ascii_lcd_scroll, 0);
 
 	platform_set_drvdata(pdev, ctx);
 
diff --git a/drivers/auxdisplay/panel.c b/drivers/auxdisplay/panel.c
index df126dcdaf18..ea7869c0d7f9 100644
--- a/drivers/auxdisplay/panel.c
+++ b/drivers/auxdisplay/panel.c
@@ -1105,14 +1105,21 @@ static ssize_t keypad_read(struct file *file,
 
 static int keypad_open(struct inode *inode, struct file *file)
 {
+	int ret;
+
+	ret = -EBUSY;
 	if (!atomic_dec_and_test(&keypad_available))
-		return -EBUSY;	/* open only once at a time */
+		goto fail;	/* open only once at a time */
 
+	ret = -EPERM;
 	if (file->f_mode & FMODE_WRITE)	/* device is read-only */
-		return -EPERM;
+		goto fail;
 
 	keypad_buflen = 0;	/* flush the buffer on opening */
 	return 0;
+ fail:
+	atomic_inc(&keypad_available);
+	return ret;
 }
 
 static int keypad_release(struct inode *inode, struct file *file)
@@ -1389,7 +1396,7 @@ static void panel_process_inputs(void)
 	}
 }
 
-static void panel_scan_timer(void)
+static void panel_scan_timer(struct timer_list *unused)
 {
 	if (keypad.enabled && keypad_initialized) {
 		if (spin_trylock_irq(&pprt_lock)) {
@@ -1414,7 +1421,7 @@ static void init_scan_timer(void)
 	if (scan_timer.function)
 		return;		/* already started */
 
-	setup_timer(&scan_timer, (void *)&panel_scan_timer, 0);
+	timer_setup(&scan_timer, panel_scan_timer, 0);
 	scan_timer.expires = jiffies + INPUT_POLL_TIME;
 	add_timer(&scan_timer);
 }
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index f046d21de57d..2f6614c9a229 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menu "Generic Driver Options"
 
 config UEVENT_HELPER
@@ -140,13 +141,10 @@ config EXTRA_FIRMWARE
 config EXTRA_FIRMWARE_DIR
 	string "Firmware blobs root directory"
 	depends on EXTRA_FIRMWARE != ""
-	default "firmware"
+	default "/lib/firmware"
 	help
 	  This option controls the directory in which the kernel build system
 	  looks for the firmware files listed in the EXTRA_FIRMWARE option.
-	  The default is firmware/ in the kernel source tree, but by changing
-	  this option you can point it elsewhere, such as /lib/firmware/ or
-	  some other directory containing the firmware files.
 
 config FW_LOADER_USER_HELPER
 	bool
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index 397e5c344e6a..e32a52490051 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux device tree
 
 obj-y			:= component.o core.o bus.o dd.o syscore.o \
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 41be9ff7d70a..0739c5b953bf 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -22,14 +22,23 @@
 #include <linux/string.h>
 #include <linux/sched/topology.h>
 
-static DEFINE_MUTEX(cpu_scale_mutex);
-static DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
+DEFINE_PER_CPU(unsigned long, freq_scale) = SCHED_CAPACITY_SCALE;
 
-unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
+void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
+			 unsigned long max_freq)
 {
-	return per_cpu(cpu_scale, cpu);
+	unsigned long scale;
+	int i;
+
+	scale = (cur_freq << SCHED_CAPACITY_SHIFT) / max_freq;
+
+	for_each_cpu(i, cpus)
+		per_cpu(freq_scale, i) = scale;
 }
 
+static DEFINE_MUTEX(cpu_scale_mutex);
+DEFINE_PER_CPU(unsigned long, cpu_scale) = SCHED_CAPACITY_SCALE;
+
 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity)
 {
 	per_cpu(cpu_scale, cpu) = capacity;
@@ -166,11 +175,11 @@ bool __init topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu)
 }
 
 #ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit;
-static void parsing_done_workfn(struct work_struct *work);
-static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+static cpumask_var_t cpus_to_visit __initdata;
+static void __init parsing_done_workfn(struct work_struct *work);
+static __initdata DECLARE_WORK(parsing_done_work, parsing_done_workfn);
 
-static int
+static int __init
 init_cpu_capacity_callback(struct notifier_block *nb,
 			   unsigned long val,
 			   void *data)
@@ -206,12 +215,14 @@ init_cpu_capacity_callback(struct notifier_block *nb,
 	return 0;
 }
 
-static struct notifier_block init_cpu_capacity_notifier = {
+static struct notifier_block init_cpu_capacity_notifier __initdata = {
 	.notifier_call = init_cpu_capacity_callback,
 };
 
 static int __init register_cpufreq_notifier(void)
 {
+	int ret;
+
 	/*
 	 * on ACPI-based systems we need to use the default cpu capacity
 	 * until we have the necessary code to parse the cpu capacity, so
@@ -227,15 +238,21 @@ static int __init register_cpufreq_notifier(void)
 
 	cpumask_copy(cpus_to_visit, cpu_possible_mask);
 
-	return cpufreq_register_notifier(&init_cpu_capacity_notifier,
-					 CPUFREQ_POLICY_NOTIFIER);
+	ret = cpufreq_register_notifier(&init_cpu_capacity_notifier,
+					CPUFREQ_POLICY_NOTIFIER);
+
+	if (ret)
+		free_cpumask_var(cpus_to_visit);
+
+	return ret;
 }
 core_initcall(register_cpufreq_notifier);
 
-static void parsing_done_workfn(struct work_struct *work)
+static void __init parsing_done_workfn(struct work_struct *work)
 {
 	cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
 					 CPUFREQ_POLICY_NOTIFIER);
+	free_cpumask_var(cpus_to_visit);
 }
 
 #else
diff --git a/drivers/base/base.h b/drivers/base/base.h
index 539432a14b5c..d800de650fa5 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/notifier.h>
 
 /**
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 12ebd055724c..4b8ba2a75a4d 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -668,7 +668,7 @@ const char *dev_driver_string(const struct device *dev)
 	 * so be careful about accessing it.  dev->bus and dev->class should
 	 * never change once they are set, so they don't need special care.
 	 */
-	drv = ACCESS_ONCE(dev->driver);
+	drv = READ_ONCE(dev->driver);
 	return drv ? drv->name :
 			(dev->bus ? dev->bus->name :
 			(dev->class ? dev->class->name : ""));
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 321cd7b4d817..58a9b608d821 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -18,6 +18,7 @@
 #include <linux/cpufeature.h>
 #include <linux/tick.h>
 #include <linux/pm_qos.h>
+#include <linux/sched/isolation.h>
 
 #include "base.h"
 
@@ -271,8 +272,16 @@ static ssize_t print_cpus_isolated(struct device *dev,
 				  struct device_attribute *attr, char *buf)
 {
 	int n = 0, len = PAGE_SIZE-2;
+	cpumask_var_t isolated;
 
-	n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(cpu_isolated_map));
+	if (!alloc_cpumask_var(&isolated, GFP_KERNEL))
+		return -ENOMEM;
+
+	cpumask_andnot(isolated, cpu_possible_mask,
+		       housekeeping_cpumask(HK_FLAG_DOMAIN));
+	n = scnprintf(buf, len, "%*pbl\n", cpumask_pr_args(isolated));
+
+	free_cpumask_var(isolated);
 
 	return n;
 }
@@ -377,7 +386,8 @@ int register_cpu(struct cpu *cpu, int num)
 
 	per_cpu(cpu_sys_devices, num) = &cpu->dev;
 	register_cpu_under_node(num, cpu_to_node(num));
-	dev_pm_qos_expose_latency_limit(&cpu->dev, 0);
+	dev_pm_qos_expose_latency_limit(&cpu->dev,
+					PM_QOS_RESUME_LATENCY_NO_CONSTRAINT);
 
 	return 0;
 }
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index ad44b40fe284..45575e134696 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -464,6 +464,7 @@ pinctrl_bind_failed:
 	if (dev->pm_domain && dev->pm_domain->dismiss)
 		dev->pm_domain->dismiss(dev);
 	pm_runtime_reinit(dev);
+	dev_pm_set_driver_flags(dev, 0);
 
 	switch (ret) {
 	case -EPROBE_DEFER:
@@ -869,6 +870,7 @@ static void __device_release_driver(struct device *dev, struct device *parent)
 		if (dev->pm_domain && dev->pm_domain->dismiss)
 			dev->pm_domain->dismiss(dev);
 		pm_runtime_reinit(dev);
+		dev_pm_set_driver_flags(dev, 0);
 
 		klist_remove(&dev->p->knode_driver);
 		device_pm_check_callbacks(dev);
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index d2fb9c8ed205..50025d7959cb 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * devtmpfs - kernel-maintained tmpfs-based /dev
  *
diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c
index a39b2166b145..1e6396bb807b 100644
--- a/drivers/base/dma-coherent.c
+++ b/drivers/base/dma-coherent.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Coherent per-device memory handling.
  * Borrowed from i386
@@ -348,16 +349,15 @@ static int rmem_dma_device_init(struct reserved_mem *rmem, struct device *dev)
 	struct dma_coherent_mem *mem = rmem->priv;
 	int ret;
 
-	if (!mem)
-		return -ENODEV;
-
-	ret = dma_init_coherent_memory(rmem->base, rmem->base, rmem->size,
-				       DMA_MEMORY_EXCLUSIVE, &mem);
-
-	if (ret) {
-		pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %ld MiB\n",
-			&rmem->base, (unsigned long)rmem->size / SZ_1M);
-		return ret;
+	if (!mem) {
+		ret = dma_init_coherent_memory(rmem->base, rmem->base,
+					       rmem->size,
+					       DMA_MEMORY_EXCLUSIVE, &mem);
+		if (ret) {
+			pr_err("Reserved memory: failed to init DMA memory pool at %pa, size %ld MiB\n",
+				&rmem->base, (unsigned long)rmem->size / SZ_1M);
+			return ret;
+		}
 	}
 	mem->use_dev_dma_pfn_offset = true;
 	rmem->priv = mem;
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 4e3b61cda520..1d60b58a8c19 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Memory subsystem support
  *
diff --git a/drivers/base/node.c b/drivers/base/node.c
index 3855902f2c5b..ee090ab9171c 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Basic Node interface support
  */
@@ -27,13 +28,21 @@ static struct bus_type node_subsys = {
 
 static ssize_t node_read_cpumap(struct device *dev, bool list, char *buf)
 {
+	ssize_t n;
+	cpumask_var_t mask;
 	struct node *node_dev = to_node(dev);
-	const struct cpumask *mask = cpumask_of_node(node_dev->dev.id);
 
 	/* 2008/04/07: buf currently PAGE_SIZE, need 9 chars per 32 bits. */
 	BUILD_BUG_ON((NR_CPUS/32 * 9) > (PAGE_SIZE-1));
 
-	return cpumap_print_to_pagebuf(list, buf, mask);
+	if (!alloc_cpumask_var(&mask, GFP_KERNEL))
+		return 0;
+
+	cpumask_and(mask, cpumask_of_node(node_dev->dev.id), cpu_online_mask);
+	n = cpumap_print_to_pagebuf(list, buf, mask);
+	free_cpumask_var(mask);
+
+	return n;
 }
 
 static inline ssize_t node_read_cpumask(struct device *dev,
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index d1bd99271066..9045c5f3734e 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -868,7 +868,8 @@ static ssize_t driver_override_store(struct device *dev,
 	struct platform_device *pdev = to_platform_device(dev);
 	char *driver_override, *old, *cp;
 
-	if (count > PATH_MAX)
+	/* We need to keep extra room for a newline */
+	if (count >= (PAGE_SIZE - 1))
 		return -EINVAL;
 
 	driver_override = kstrndup(buf, count, GFP_KERNEL);
diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile
index 5998c53280f5..e1bb691cf8f1 100644
--- a/drivers/base/power/Makefile
+++ b/drivers/base/power/Makefile
@@ -1,7 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PM)	+= sysfs.o generic_ops.o common.o qos.o runtime.o wakeirq.o
 obj-$(CONFIG_PM_SLEEP)	+= main.o wakeup.o
 obj-$(CONFIG_PM_TRACE_RTC)	+= trace.o
-obj-$(CONFIG_PM_OPP)	+= opp/
 obj-$(CONFIG_PM_GENERIC_DOMAINS)	+=  domain.o domain_governor.o
 obj-$(CONFIG_HAVE_CLK)	+= clock_ops.o
 
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index e8ca5e2cf1e5..0c80bea05bcb 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -124,6 +124,7 @@ static const struct genpd_lock_ops genpd_spin_ops = {
 #define genpd_status_on(genpd)		(genpd->status == GPD_STATE_ACTIVE)
 #define genpd_is_irq_safe(genpd)	(genpd->flags & GENPD_FLAG_IRQ_SAFE)
 #define genpd_is_always_on(genpd)	(genpd->flags & GENPD_FLAG_ALWAYS_ON)
+#define genpd_is_active_wakeup(genpd)	(genpd->flags & GENPD_FLAG_ACTIVE_WAKEUP)
 
 static inline bool irq_safe_dev_in_no_sleep_domain(struct device *dev,
 		const struct generic_pm_domain *genpd)
@@ -237,6 +238,95 @@ static void genpd_update_accounting(struct generic_pm_domain *genpd)
 static inline void genpd_update_accounting(struct generic_pm_domain *genpd) {}
 #endif
 
+/**
+ * dev_pm_genpd_set_performance_state- Set performance state of device's power
+ * domain.
+ *
+ * @dev: Device for which the performance-state needs to be set.
+ * @state: Target performance state of the device. This can be set as 0 when the
+ *	   device doesn't have any performance state constraints left (And so
+ *	   the device wouldn't participate anymore to find the target
+ *	   performance state of the genpd).
+ *
+ * It is assumed that the users guarantee that the genpd wouldn't be detached
+ * while this routine is getting called.
+ *
+ * Returns 0 on success and negative error values on failures.
+ */
+int dev_pm_genpd_set_performance_state(struct device *dev, unsigned int state)
+{
+	struct generic_pm_domain *genpd;
+	struct generic_pm_domain_data *gpd_data, *pd_data;
+	struct pm_domain_data *pdd;
+	unsigned int prev;
+	int ret = 0;
+
+	genpd = dev_to_genpd(dev);
+	if (IS_ERR(genpd))
+		return -ENODEV;
+
+	if (unlikely(!genpd->set_performance_state))
+		return -EINVAL;
+
+	if (unlikely(!dev->power.subsys_data ||
+		     !dev->power.subsys_data->domain_data)) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	genpd_lock(genpd);
+
+	gpd_data = to_gpd_data(dev->power.subsys_data->domain_data);
+	prev = gpd_data->performance_state;
+	gpd_data->performance_state = state;
+
+	/* New requested state is same as Max requested state */
+	if (state == genpd->performance_state)
+		goto unlock;
+
+	/* New requested state is higher than Max requested state */
+	if (state > genpd->performance_state)
+		goto update_state;
+
+	/* Traverse all devices within the domain */
+	list_for_each_entry(pdd, &genpd->dev_list, list_node) {
+		pd_data = to_gpd_data(pdd);
+
+		if (pd_data->performance_state > state)
+			state = pd_data->performance_state;
+	}
+
+	if (state == genpd->performance_state)
+		goto unlock;
+
+	/*
+	 * We aren't propagating performance state changes of a subdomain to its
+	 * masters as we don't have hardware that needs it. Over that, the
+	 * performance states of subdomain and its masters may not have
+	 * one-to-one mapping and would require additional information. We can
+	 * get back to this once we have hardware that needs it. For that
+	 * reason, we don't have to consider performance state of the subdomains
+	 * of genpd here.
+	 */
+
+update_state:
+	if (genpd_status_on(genpd)) {
+		ret = genpd->set_performance_state(genpd, state);
+		if (ret) {
+			gpd_data->performance_state = prev;
+			goto unlock;
+		}
+	}
+
+	genpd->performance_state = state;
+
+unlock:
+	genpd_unlock(genpd);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(dev_pm_genpd_set_performance_state);
+
 static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed)
 {
 	unsigned int state_idx = genpd->state_idx;
@@ -256,6 +346,15 @@ static int _genpd_power_on(struct generic_pm_domain *genpd, bool timed)
 		return ret;
 
 	elapsed_ns = ktime_to_ns(ktime_sub(ktime_get(), time_start));
+
+	if (unlikely(genpd->set_performance_state)) {
+		ret = genpd->set_performance_state(genpd, genpd->performance_state);
+		if (ret) {
+			pr_warn("%s: Failed to set performance state %d (%d)\n",
+				genpd->name, genpd->performance_state, ret);
+		}
+	}
+
 	if (elapsed_ns <= genpd->states[state_idx].power_on_latency_ns)
 		return ret;
 
@@ -346,9 +445,7 @@ static int genpd_power_off(struct generic_pm_domain *genpd, bool one_dev_on,
 	list_for_each_entry(pdd, &genpd->dev_list, list_node) {
 		enum pm_qos_flags_status stat;
 
-		stat = dev_pm_qos_flags(pdd->dev,
-					PM_QOS_FLAG_NO_POWER_OFF
-						| PM_QOS_FLAG_REMOTE_WAKEUP);
+		stat = dev_pm_qos_flags(pdd->dev, PM_QOS_FLAG_NO_POWER_OFF);
 		if (stat > PM_QOS_FLAGS_NONE)
 			return -EBUSY;
 
@@ -749,11 +846,7 @@ late_initcall(genpd_power_off_unused);
 
 #if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_GENERIC_DOMAINS_OF)
 
-/**
- * pm_genpd_present - Check if the given PM domain has been initialized.
- * @genpd: PM domain to check.
- */
-static bool pm_genpd_present(const struct generic_pm_domain *genpd)
+static bool genpd_present(const struct generic_pm_domain *genpd)
 {
 	const struct generic_pm_domain *gpd;
 
@@ -771,12 +864,6 @@ static bool pm_genpd_present(const struct generic_pm_domain *genpd)
 
 #ifdef CONFIG_PM_SLEEP
 
-static bool genpd_dev_active_wakeup(const struct generic_pm_domain *genpd,
-				    struct device *dev)
-{
-	return GENPD_DEV_CALLBACK(genpd, bool, active_wakeup, dev);
-}
-
 /**
  * genpd_sync_power_off - Synchronously power off a PM domain and its masters.
  * @genpd: PM domain to power off, if possible.
@@ -863,7 +950,7 @@ static void genpd_sync_power_on(struct generic_pm_domain *genpd, bool use_lock,
  * @genpd: PM domain the device belongs to.
  *
  * There are two cases in which a device that can wake up the system from sleep
- * states should be resumed by pm_genpd_prepare(): (1) if the device is enabled
+ * states should be resumed by genpd_prepare(): (1) if the device is enabled
  * to wake up the system and it has to remain active for this purpose while the
  * system is in the sleep state and (2) if the device is not enabled to wake up
  * the system from sleep states and it generally doesn't generate wakeup signals
@@ -881,12 +968,12 @@ static bool resume_needed(struct device *dev,
 	if (!device_can_wakeup(dev))
 		return false;
 
-	active_wakeup = genpd_dev_active_wakeup(genpd, dev);
+	active_wakeup = genpd_is_active_wakeup(genpd);
 	return device_may_wakeup(dev) ? active_wakeup : !active_wakeup;
 }
 
 /**
- * pm_genpd_prepare - Start power transition of a device in a PM domain.
+ * genpd_prepare - Start power transition of a device in a PM domain.
  * @dev: Device to start the transition of.
  *
  * Start a power transition of a device (during a system-wide power transition)
@@ -894,7 +981,7 @@ static bool resume_needed(struct device *dev,
  * an object of type struct generic_pm_domain representing a PM domain
  * consisting of I/O devices.
  */
-static int pm_genpd_prepare(struct device *dev)
+static int genpd_prepare(struct device *dev)
 {
 	struct generic_pm_domain *genpd;
 	int ret;
@@ -921,7 +1008,7 @@ static int pm_genpd_prepare(struct device *dev)
 	genpd_unlock(genpd);
 
 	ret = pm_generic_prepare(dev);
-	if (ret) {
+	if (ret < 0) {
 		genpd_lock(genpd);
 
 		genpd->prepared_count--;
@@ -929,7 +1016,8 @@ static int pm_genpd_prepare(struct device *dev)
 		genpd_unlock(genpd);
 	}
 
-	return ret;
+	/* Never return 1, as genpd don't cope with the direct_complete path. */
+	return ret >= 0 ? 0 : ret;
 }
 
 /**
@@ -950,7 +1038,7 @@ static int genpd_finish_suspend(struct device *dev, bool poweroff)
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	if (dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
+	if (dev->power.wakeup_path && genpd_is_active_wakeup(genpd))
 		return 0;
 
 	if (poweroff)
@@ -975,13 +1063,13 @@ static int genpd_finish_suspend(struct device *dev, bool poweroff)
 }
 
 /**
- * pm_genpd_suspend_noirq - Completion of suspend of device in an I/O PM domain.
+ * genpd_suspend_noirq - Completion of suspend of device in an I/O PM domain.
  * @dev: Device to suspend.
  *
  * Stop the device and remove power from the domain if all devices in it have
  * been stopped.
  */
-static int pm_genpd_suspend_noirq(struct device *dev)
+static int genpd_suspend_noirq(struct device *dev)
 {
 	dev_dbg(dev, "%s()\n", __func__);
 
@@ -989,12 +1077,12 @@ static int pm_genpd_suspend_noirq(struct device *dev)
 }
 
 /**
- * pm_genpd_resume_noirq - Start of resume of device in an I/O PM domain.
+ * genpd_resume_noirq - Start of resume of device in an I/O PM domain.
  * @dev: Device to resume.
  *
  * Restore power to the device's PM domain, if necessary, and start the device.
  */
-static int pm_genpd_resume_noirq(struct device *dev)
+static int genpd_resume_noirq(struct device *dev)
 {
 	struct generic_pm_domain *genpd;
 	int ret = 0;
@@ -1005,7 +1093,7 @@ static int pm_genpd_resume_noirq(struct device *dev)
 	if (IS_ERR(genpd))
 		return -EINVAL;
 
-	if (dev->power.wakeup_path && genpd_dev_active_wakeup(genpd, dev))
+	if (dev->power.wakeup_path && genpd_is_active_wakeup(genpd))
 		return 0;
 
 	genpd_lock(genpd);
@@ -1024,7 +1112,7 @@ static int pm_genpd_resume_noirq(struct device *dev)
 }
 
 /**
- * pm_genpd_freeze_noirq - Completion of freezing a device in an I/O PM domain.
+ * genpd_freeze_noirq - Completion of freezing a device in an I/O PM domain.
  * @dev: Device to freeze.
  *
  * Carry out a late freeze of a device under the assumption that its
@@ -1032,7 +1120,7 @@ static int pm_genpd_resume_noirq(struct device *dev)
  * struct generic_pm_domain representing a power domain consisting of I/O
  * devices.
  */
-static int pm_genpd_freeze_noirq(struct device *dev)
+static int genpd_freeze_noirq(struct device *dev)
 {
 	const struct generic_pm_domain *genpd;
 	int ret = 0;
@@ -1054,13 +1142,13 @@ static int pm_genpd_freeze_noirq(struct device *dev)
 }
 
 /**
- * pm_genpd_thaw_noirq - Early thaw of device in an I/O PM domain.
+ * genpd_thaw_noirq - Early thaw of device in an I/O PM domain.
  * @dev: Device to thaw.
  *
  * Start the device, unless power has been removed from the domain already
  * before the system transition.
  */
-static int pm_genpd_thaw_noirq(struct device *dev)
+static int genpd_thaw_noirq(struct device *dev)
 {
 	const struct generic_pm_domain *genpd;
 	int ret = 0;
@@ -1081,14 +1169,14 @@ static int pm_genpd_thaw_noirq(struct device *dev)
 }
 
 /**
- * pm_genpd_poweroff_noirq - Completion of hibernation of device in an
+ * genpd_poweroff_noirq - Completion of hibernation of device in an
  *   I/O PM domain.
  * @dev: Device to poweroff.
  *
  * Stop the device and remove power from the domain if all devices in it have
  * been stopped.
  */
-static int pm_genpd_poweroff_noirq(struct device *dev)
+static int genpd_poweroff_noirq(struct device *dev)
 {
 	dev_dbg(dev, "%s()\n", __func__);
 
@@ -1096,13 +1184,13 @@ static int pm_genpd_poweroff_noirq(struct device *dev)
 }
 
 /**
- * pm_genpd_restore_noirq - Start of restore of device in an I/O PM domain.
+ * genpd_restore_noirq - Start of restore of device in an I/O PM domain.
  * @dev: Device to resume.
  *
  * Make sure the domain will be in the same power state as before the
  * hibernation the system is resuming from and start the device if necessary.
  */
-static int pm_genpd_restore_noirq(struct device *dev)
+static int genpd_restore_noirq(struct device *dev)
 {
 	struct generic_pm_domain *genpd;
 	int ret = 0;
@@ -1139,7 +1227,7 @@ static int pm_genpd_restore_noirq(struct device *dev)
 }
 
 /**
- * pm_genpd_complete - Complete power transition of a device in a power domain.
+ * genpd_complete - Complete power transition of a device in a power domain.
  * @dev: Device to complete the transition of.
  *
  * Complete a power transition of a device (during a system-wide power
@@ -1147,7 +1235,7 @@ static int pm_genpd_restore_noirq(struct device *dev)
  * domain member of an object of type struct generic_pm_domain representing
  * a power domain consisting of I/O devices.
  */
-static void pm_genpd_complete(struct device *dev)
+static void genpd_complete(struct device *dev)
 {
 	struct generic_pm_domain *genpd;
 
@@ -1180,7 +1268,7 @@ static void genpd_syscore_switch(struct device *dev, bool suspend)
 	struct generic_pm_domain *genpd;
 
 	genpd = dev_to_genpd(dev);
-	if (!pm_genpd_present(genpd))
+	if (!genpd_present(genpd))
 		return;
 
 	if (suspend) {
@@ -1206,14 +1294,14 @@ EXPORT_SYMBOL_GPL(pm_genpd_syscore_poweron);
 
 #else /* !CONFIG_PM_SLEEP */
 
-#define pm_genpd_prepare		NULL
-#define pm_genpd_suspend_noirq		NULL
-#define pm_genpd_resume_noirq		NULL
-#define pm_genpd_freeze_noirq		NULL
-#define pm_genpd_thaw_noirq		NULL
-#define pm_genpd_poweroff_noirq		NULL
-#define pm_genpd_restore_noirq		NULL
-#define pm_genpd_complete		NULL
+#define genpd_prepare		NULL
+#define genpd_suspend_noirq	NULL
+#define genpd_resume_noirq	NULL
+#define genpd_freeze_noirq	NULL
+#define genpd_thaw_noirq	NULL
+#define genpd_poweroff_noirq	NULL
+#define genpd_restore_noirq	NULL
+#define genpd_complete		NULL
 
 #endif /* CONFIG_PM_SLEEP */
 
@@ -1239,7 +1327,7 @@ static struct generic_pm_domain_data *genpd_alloc_dev_data(struct device *dev,
 
 	gpd_data->base.dev = dev;
 	gpd_data->td.constraint_changed = true;
-	gpd_data->td.effective_constraint_ns = -1;
+	gpd_data->td.effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS;
 	gpd_data->nb.notifier_call = genpd_dev_pm_qos_notifier;
 
 	spin_lock_irq(&dev->power.lock);
@@ -1574,14 +1662,14 @@ int pm_genpd_init(struct generic_pm_domain *genpd,
 	genpd->accounting_time = ktime_get();
 	genpd->domain.ops.runtime_suspend = genpd_runtime_suspend;
 	genpd->domain.ops.runtime_resume = genpd_runtime_resume;
-	genpd->domain.ops.prepare = pm_genpd_prepare;
-	genpd->domain.ops.suspend_noirq = pm_genpd_suspend_noirq;
-	genpd->domain.ops.resume_noirq = pm_genpd_resume_noirq;
-	genpd->domain.ops.freeze_noirq = pm_genpd_freeze_noirq;
-	genpd->domain.ops.thaw_noirq = pm_genpd_thaw_noirq;
-	genpd->domain.ops.poweroff_noirq = pm_genpd_poweroff_noirq;
-	genpd->domain.ops.restore_noirq = pm_genpd_restore_noirq;
-	genpd->domain.ops.complete = pm_genpd_complete;
+	genpd->domain.ops.prepare = genpd_prepare;
+	genpd->domain.ops.suspend_noirq = genpd_suspend_noirq;
+	genpd->domain.ops.resume_noirq = genpd_resume_noirq;
+	genpd->domain.ops.freeze_noirq = genpd_freeze_noirq;
+	genpd->domain.ops.thaw_noirq = genpd_thaw_noirq;
+	genpd->domain.ops.poweroff_noirq = genpd_poweroff_noirq;
+	genpd->domain.ops.restore_noirq = genpd_restore_noirq;
+	genpd->domain.ops.complete = genpd_complete;
 
 	if (genpd->flags & GENPD_FLAG_PM_CLK) {
 		genpd->dev_ops.stop = pm_clk_suspend;
@@ -1795,7 +1883,7 @@ int of_genpd_add_provider_simple(struct device_node *np,
 
 	mutex_lock(&gpd_list_lock);
 
-	if (pm_genpd_present(genpd)) {
+	if (genpd_present(genpd)) {
 		ret = genpd_add_provider(np, genpd_xlate_simple, genpd);
 		if (!ret) {
 			genpd->provider = &np->fwnode;
@@ -1831,7 +1919,7 @@ int of_genpd_add_provider_onecell(struct device_node *np,
 	for (i = 0; i < data->num_domains; i++) {
 		if (!data->domains[i])
 			continue;
-		if (!pm_genpd_present(data->domains[i]))
+		if (!genpd_present(data->domains[i]))
 			goto error;
 
 		data->domains[i]->provider = &np->fwnode;
@@ -2274,7 +2362,7 @@ EXPORT_SYMBOL_GPL(of_genpd_parse_idle_states);
 #include <linux/seq_file.h>
 #include <linux/init.h>
 #include <linux/kobject.h>
-static struct dentry *pm_genpd_debugfs_dir;
+static struct dentry *genpd_debugfs_dir;
 
 /*
  * TODO: This function is a slightly modified version of rtpm_status_show
@@ -2302,8 +2390,8 @@ static void rtpm_status_str(struct seq_file *s, struct device *dev)
 	seq_puts(s, p);
 }
 
-static int pm_genpd_summary_one(struct seq_file *s,
-				struct generic_pm_domain *genpd)
+static int genpd_summary_one(struct seq_file *s,
+			struct generic_pm_domain *genpd)
 {
 	static const char * const status_lookup[] = {
 		[GPD_STATE_ACTIVE] = "on",
@@ -2373,7 +2461,7 @@ static int genpd_summary_show(struct seq_file *s, void *data)
 		return -ERESTARTSYS;
 
 	list_for_each_entry(genpd, &gpd_list, gpd_list_node) {
-		ret = pm_genpd_summary_one(s, genpd);
+		ret = genpd_summary_one(s, genpd);
 		if (ret)
 			break;
 	}
@@ -2559,23 +2647,23 @@ define_genpd_debugfs_fops(active_time);
 define_genpd_debugfs_fops(total_idle_time);
 define_genpd_debugfs_fops(devices);
 
-static int __init pm_genpd_debug_init(void)
+static int __init genpd_debug_init(void)
 {
 	struct dentry *d;
 	struct generic_pm_domain *genpd;
 
-	pm_genpd_debugfs_dir = debugfs_create_dir("pm_genpd", NULL);
+	genpd_debugfs_dir = debugfs_create_dir("pm_genpd", NULL);
 
-	if (!pm_genpd_debugfs_dir)
+	if (!genpd_debugfs_dir)
 		return -ENOMEM;
 
 	d = debugfs_create_file("pm_genpd_summary", S_IRUGO,
-			pm_genpd_debugfs_dir, NULL, &genpd_summary_fops);
+			genpd_debugfs_dir, NULL, &genpd_summary_fops);
 	if (!d)
 		return -ENOMEM;
 
 	list_for_each_entry(genpd, &gpd_list, gpd_list_node) {
-		d = debugfs_create_dir(genpd->name, pm_genpd_debugfs_dir);
+		d = debugfs_create_dir(genpd->name, genpd_debugfs_dir);
 		if (!d)
 			return -ENOMEM;
 
@@ -2595,11 +2683,11 @@ static int __init pm_genpd_debug_init(void)
 
 	return 0;
 }
-late_initcall(pm_genpd_debug_init);
+late_initcall(genpd_debug_init);
 
-static void __exit pm_genpd_debug_exit(void)
+static void __exit genpd_debug_exit(void)
 {
-	debugfs_remove_recursive(pm_genpd_debugfs_dir);
+	debugfs_remove_recursive(genpd_debugfs_dir);
 }
-__exitcall(pm_genpd_debug_exit);
+__exitcall(genpd_debug_exit);
 #endif /* CONFIG_DEBUG_FS */
diff --git a/drivers/base/power/domain_governor.c b/drivers/base/power/domain_governor.c
index 281f949c5ffe..99896fbf18e4 100644
--- a/drivers/base/power/domain_governor.c
+++ b/drivers/base/power/domain_governor.c
@@ -14,23 +14,29 @@
 static int dev_update_qos_constraint(struct device *dev, void *data)
 {
 	s64 *constraint_ns_p = data;
-	s32 constraint_ns = -1;
+	s64 constraint_ns;
 
-	if (dev->power.subsys_data && dev->power.subsys_data->domain_data)
+	if (dev->power.subsys_data && dev->power.subsys_data->domain_data) {
+		/*
+		 * Only take suspend-time QoS constraints of devices into
+		 * account, because constraints updated after the device has
+		 * been suspended are not guaranteed to be taken into account
+		 * anyway.  In order for them to take effect, the device has to
+		 * be resumed and suspended again.
+		 */
 		constraint_ns = dev_gpd_data(dev)->td.effective_constraint_ns;
-
-	if (constraint_ns < 0) {
+	} else {
+		/*
+		 * The child is not in a domain and there's no info on its
+		 * suspend/resume latencies, so assume them to be negligible and
+		 * take its current PM QoS constraint (that's the only thing
+		 * known at this point anyway).
+		 */
 		constraint_ns = dev_pm_qos_read_value(dev);
 		constraint_ns *= NSEC_PER_USEC;
 	}
-	if (constraint_ns == 0)
-		return 0;
 
-	/*
-	 * constraint_ns cannot be negative here, because the device has been
-	 * suspended.
-	 */
-	if (constraint_ns < *constraint_ns_p || *constraint_ns_p == 0)
+	if (constraint_ns < *constraint_ns_p)
 		*constraint_ns_p = constraint_ns;
 
 	return 0;
@@ -58,12 +64,12 @@ static bool default_suspend_ok(struct device *dev)
 	}
 	td->constraint_changed = false;
 	td->cached_suspend_ok = false;
-	td->effective_constraint_ns = -1;
+	td->effective_constraint_ns = 0;
 	constraint_ns = __dev_pm_qos_read_value(dev);
 
 	spin_unlock_irqrestore(&dev->power.lock, flags);
 
-	if (constraint_ns < 0)
+	if (constraint_ns == 0)
 		return false;
 
 	constraint_ns *= NSEC_PER_USEC;
@@ -76,14 +82,32 @@ static bool default_suspend_ok(struct device *dev)
 		device_for_each_child(dev, &constraint_ns,
 				      dev_update_qos_constraint);
 
-	if (constraint_ns > 0) {
+	if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS) {
+		/* "No restriction", so the device is allowed to suspend. */
+		td->effective_constraint_ns = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS;
+		td->cached_suspend_ok = true;
+	} else if (constraint_ns == 0) {
+		/*
+		 * This triggers if one of the children that don't belong to a
+		 * domain has a zero PM QoS constraint and it's better not to
+		 * suspend then.  effective_constraint_ns is zero already and
+		 * cached_suspend_ok is false, so bail out.
+		 */
+		return false;
+	} else {
 		constraint_ns -= td->suspend_latency_ns +
 				td->resume_latency_ns;
-		if (constraint_ns == 0)
+		/*
+		 * effective_constraint_ns is zero already and cached_suspend_ok
+		 * is false, so if the computed value is not positive, return
+		 * right away.
+		 */
+		if (constraint_ns <= 0)
 			return false;
+
+		td->effective_constraint_ns = constraint_ns;
+		td->cached_suspend_ok = true;
 	}
-	td->effective_constraint_ns = constraint_ns;
-	td->cached_suspend_ok = constraint_ns >= 0;
 
 	/*
 	 * The children have been suspended already, so we don't need to take
@@ -144,18 +168,13 @@ static bool __default_power_down_ok(struct dev_pm_domain *pd,
 		 */
 		td = &to_gpd_data(pdd)->td;
 		constraint_ns = td->effective_constraint_ns;
-		/* default_suspend_ok() need not be called before us. */
-		if (constraint_ns < 0) {
-			constraint_ns = dev_pm_qos_read_value(pdd->dev);
-			constraint_ns *= NSEC_PER_USEC;
-		}
-		if (constraint_ns == 0)
-			continue;
-
 		/*
-		 * constraint_ns cannot be negative here, because the device has
-		 * been suspended.
+		 * Zero means "no suspend at all" and this runs only when all
+		 * devices in the domain are suspended, so it must be positive.
 		 */
+		if (constraint_ns == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS)
+			continue;
+
 		if (constraint_ns <= off_on_time_ns)
 			return false;
 
diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c
index 07c3c4a9522d..b2ed606265a8 100644
--- a/drivers/base/power/generic_ops.c
+++ b/drivers/base/power/generic_ops.c
@@ -9,7 +9,6 @@
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/export.h>
-#include <linux/suspend.h>
 
 #ifdef CONFIG_PM
 /**
@@ -298,26 +297,4 @@ void pm_generic_complete(struct device *dev)
 	if (drv && drv->pm && drv->pm->complete)
 		drv->pm->complete(dev);
 }
-
-/**
- * pm_complete_with_resume_check - Complete a device power transition.
- * @dev: Device to handle.
- *
- * Complete a device power transition during a system-wide power transition and
- * optionally schedule a runtime resume of the device if the system resume in
- * progress has been initated by the platform firmware and the device had its
- * power.direct_complete flag set.
- */
-void pm_complete_with_resume_check(struct device *dev)
-{
-	pm_generic_complete(dev);
-	/*
-	 * If the device had been runtime-suspended before the system went into
-	 * the sleep state it is going out of and it has never been resumed till
-	 * now, resume it in case the firmware powered it up.
-	 */
-	if (dev->power.direct_complete && pm_resume_via_firmware())
-		pm_request_resume(dev);
-}
-EXPORT_SYMBOL_GPL(pm_complete_with_resume_check);
 #endif /* CONFIG_PM_SLEEP */
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index ea1732ed7a9d..db2f04415927 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -478,9 +478,9 @@ struct dpm_watchdog {
  * There's not much we can do here to recover so panic() to
  * capture a crash-dump in pstore.
  */
-static void dpm_watchdog_handler(unsigned long data)
+static void dpm_watchdog_handler(struct timer_list *t)
 {
-	struct dpm_watchdog *wd = (void *)data;
+	struct dpm_watchdog *wd = from_timer(wd, t, timer);
 
 	dev_emerg(wd->dev, "**** DPM device timeout ****\n");
 	show_stack(wd->tsk, NULL);
@@ -500,11 +500,9 @@ static void dpm_watchdog_set(struct dpm_watchdog *wd, struct device *dev)
 	wd->dev = dev;
 	wd->tsk = current;
 
-	init_timer_on_stack(timer);
+	timer_setup_on_stack(timer, dpm_watchdog_handler, 0);
 	/* use same timeout value for both suspend and resume */
 	timer->expires = jiffies + HZ * CONFIG_DPM_WATCHDOG_TIMEOUT;
-	timer->function = dpm_watchdog_handler;
-	timer->data = (unsigned long)wd;
 	add_timer(timer);
 }
 
@@ -528,7 +526,7 @@ static void dpm_watchdog_clear(struct dpm_watchdog *wd)
 /*------------------------- Resume routines -------------------------*/
 
 /**
- * device_resume_noirq - Execute an "early resume" callback for given device.
+ * device_resume_noirq - Execute a "noirq resume" callback for given device.
  * @dev: Device to handle.
  * @state: PM transition of the system being carried out.
  * @async: If true, the device is being resumed asynchronously.
@@ -848,16 +846,10 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 		goto Driver;
 	}
 
-	if (dev->class) {
-		if (dev->class->pm) {
-			info = "class ";
-			callback = pm_op(dev->class->pm, state);
-			goto Driver;
-		} else if (dev->class->resume) {
-			info = "legacy class ";
-			callback = dev->class->resume;
-			goto End;
-		}
+	if (dev->class && dev->class->pm) {
+		info = "class ";
+		callback = pm_op(dev->class->pm, state);
+		goto Driver;
 	}
 
 	if (dev->bus) {
@@ -1083,7 +1075,7 @@ static pm_message_t resume_event(pm_message_t sleep_state)
 }
 
 /**
- * device_suspend_noirq - Execute a "late suspend" callback for given device.
+ * __device_suspend_noirq - Execute a "noirq suspend" callback for given device.
  * @dev: Device to handle.
  * @state: PM transition of the system being carried out.
  * @async: If true, the device is being suspended asynchronously.
@@ -1243,7 +1235,7 @@ int dpm_suspend_noirq(pm_message_t state)
 }
 
 /**
- * device_suspend_late - Execute a "late suspend" callback for given device.
+ * __device_suspend_late - Execute a "late suspend" callback for given device.
  * @dev: Device to handle.
  * @state: PM transition of the system being carried out.
  * @async: If true, the device is being suspended asynchronously.
@@ -1445,7 +1437,7 @@ static void dpm_clear_suppliers_direct_complete(struct device *dev)
 }
 
 /**
- * device_suspend - Execute "suspend" callbacks for given device.
+ * __device_suspend - Execute "suspend" callbacks for given device.
  * @dev: Device to handle.
  * @state: PM transition of the system being carried out.
  * @async: If true, the device is being suspended asynchronously.
@@ -1508,17 +1500,10 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 		goto Run;
 	}
 
-	if (dev->class) {
-		if (dev->class->pm) {
-			info = "class ";
-			callback = pm_op(dev->class->pm, state);
-			goto Run;
-		} else if (dev->class->suspend) {
-			pm_dev_dbg(dev, state, "legacy class ");
-			error = legacy_suspend(dev, state, dev->class->suspend,
-						"legacy class ");
-			goto End;
-		}
+	if (dev->class && dev->class->pm) {
+		info = "class ";
+		callback = pm_op(dev->class->pm, state);
+		goto Run;
 	}
 
 	if (dev->bus) {
@@ -1665,6 +1650,9 @@ static int device_prepare(struct device *dev, pm_message_t state)
 	if (dev->power.syscore)
 		return 0;
 
+	WARN_ON(dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) &&
+		!pm_runtime_enabled(dev));
+
 	/*
 	 * If a device's parent goes into runtime suspend at the wrong time,
 	 * it won't be possible to resume the device.  To prevent this we
@@ -1713,7 +1701,9 @@ unlock:
 	 * applies to suspend transitions, however.
 	 */
 	spin_lock_irq(&dev->power.lock);
-	dev->power.direct_complete = ret > 0 && state.event == PM_EVENT_SUSPEND;
+	dev->power.direct_complete = state.event == PM_EVENT_SUSPEND &&
+		pm_runtime_suspended(dev) && ret > 0 &&
+		!dev_pm_test_driver_flags(dev, DPM_FLAG_NEVER_SKIP);
 	spin_unlock_irq(&dev->power.lock);
 	return 0;
 }
@@ -1860,10 +1850,18 @@ void device_pm_check_callbacks(struct device *dev)
 {
 	spin_lock_irq(&dev->power.lock);
 	dev->power.no_pm_callbacks =
-		(!dev->bus || pm_ops_is_empty(dev->bus->pm)) &&
+		(!dev->bus || (pm_ops_is_empty(dev->bus->pm) &&
+		 !dev->bus->suspend && !dev->bus->resume)) &&
 		(!dev->class || pm_ops_is_empty(dev->class->pm)) &&
 		(!dev->type || pm_ops_is_empty(dev->type->pm)) &&
 		(!dev->pm_domain || pm_ops_is_empty(&dev->pm_domain->ops)) &&
-		(!dev->driver || pm_ops_is_empty(dev->driver->pm));
+		(!dev->driver || (pm_ops_is_empty(dev->driver->pm) &&
+		 !dev->driver->suspend && !dev->driver->resume));
 	spin_unlock_irq(&dev->power.lock);
 }
+
+bool dev_pm_smart_suspend_and_suspended(struct device *dev)
+{
+	return dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) &&
+		pm_runtime_status_suspended(dev);
+}
diff --git a/drivers/base/power/power.h b/drivers/base/power/power.h
index a46e97e515c5..7beee75399d4 100644
--- a/drivers/base/power/power.h
+++ b/drivers/base/power/power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/pm_qos.h>
 
 static inline void device_pm_init_common(struct device *dev)
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index f850daeffba4..3382542b39b7 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -139,6 +139,9 @@ static int apply_constraint(struct dev_pm_qos_request *req,
 
 	switch(req->type) {
 	case DEV_PM_QOS_RESUME_LATENCY:
+		if (WARN_ON(action != PM_QOS_REMOVE_REQ && value < 0))
+			value = 0;
+
 		ret = pm_qos_update_target(&qos->resume_latency,
 					   &req->data.pnode, action, value);
 		break;
@@ -189,7 +192,7 @@ static int dev_pm_qos_constraints_allocate(struct device *dev)
 	plist_head_init(&c->list);
 	c->target_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE;
 	c->default_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE;
-	c->no_constraint_value = PM_QOS_RESUME_LATENCY_DEFAULT_VALUE;
+	c->no_constraint_value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
 	c->type = PM_QOS_MIN;
 	c->notifiers = n;
 
@@ -277,11 +280,11 @@ void dev_pm_qos_constraints_destroy(struct device *dev)
 	mutex_unlock(&dev_pm_qos_sysfs_mtx);
 }
 
-static bool dev_pm_qos_invalid_request(struct device *dev,
-				       struct dev_pm_qos_request *req)
+static bool dev_pm_qos_invalid_req_type(struct device *dev,
+					enum dev_pm_qos_req_type type)
 {
-	return !req || (req->type == DEV_PM_QOS_LATENCY_TOLERANCE
-			&& !dev->power.set_latency_tolerance);
+	return type == DEV_PM_QOS_LATENCY_TOLERANCE &&
+	       !dev->power.set_latency_tolerance;
 }
 
 static int __dev_pm_qos_add_request(struct device *dev,
@@ -290,7 +293,7 @@ static int __dev_pm_qos_add_request(struct device *dev,
 {
 	int ret = 0;
 
-	if (!dev || dev_pm_qos_invalid_request(dev, req))
+	if (!dev || !req || dev_pm_qos_invalid_req_type(dev, type))
 		return -EINVAL;
 
 	if (WARN(dev_pm_qos_request_active(req),
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 7bcf80fa9ada..2362b9e9701e 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -134,11 +134,11 @@ unsigned long pm_runtime_autosuspend_expiration(struct device *dev)
 	if (!dev->power.use_autosuspend)
 		goto out;
 
-	autosuspend_delay = ACCESS_ONCE(dev->power.autosuspend_delay);
+	autosuspend_delay = READ_ONCE(dev->power.autosuspend_delay);
 	if (autosuspend_delay < 0)
 		goto out;
 
-	last_busy = ACCESS_ONCE(dev->power.last_busy);
+	last_busy = READ_ONCE(dev->power.last_busy);
 	elapsed = jiffies - last_busy;
 	if (elapsed < 0)
 		goto out;	/* jiffies has wrapped around. */
@@ -253,7 +253,7 @@ static int rpm_check_suspend_allowed(struct device *dev)
 	    || (dev->power.request_pending
 			&& dev->power.request == RPM_REQ_RESUME))
 		retval = -EAGAIN;
-	else if (__dev_pm_qos_read_value(dev) < 0)
+	else if (__dev_pm_qos_read_value(dev) == 0)
 		retval = -EPERM;
 	else if (dev->power.runtime_status == RPM_SUSPENDED)
 		retval = 1;
@@ -894,9 +894,9 @@ static void pm_runtime_work(struct work_struct *work)
  *
  * Check if the time is right and queue a suspend request.
  */
-static void pm_suspend_timer_fn(unsigned long data)
+static void pm_suspend_timer_fn(struct timer_list *t)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = from_timer(dev, t, power.suspend_timer);
 	unsigned long flags;
 	unsigned long expires;
 
@@ -1499,8 +1499,7 @@ void pm_runtime_init(struct device *dev)
 	INIT_WORK(&dev->power.work, pm_runtime_work);
 
 	dev->power.timer_expires = 0;
-	setup_timer(&dev->power.suspend_timer, pm_suspend_timer_fn,
-			(unsigned long)dev);
+	timer_setup(&dev->power.suspend_timer, pm_suspend_timer_fn, 0);
 
 	init_waitqueue_head(&dev->power.wait_queue);
 }
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index 156ab57bca77..e153e28b1857 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -218,7 +218,14 @@ static ssize_t pm_qos_resume_latency_show(struct device *dev,
 					  struct device_attribute *attr,
 					  char *buf)
 {
-	return sprintf(buf, "%d\n", dev_pm_qos_requested_resume_latency(dev));
+	s32 value = dev_pm_qos_requested_resume_latency(dev);
+
+	if (value == 0)
+		return sprintf(buf, "n/a\n");
+	else if (value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
+		value = 0;
+
+	return sprintf(buf, "%d\n", value);
 }
 
 static ssize_t pm_qos_resume_latency_store(struct device *dev,
@@ -228,11 +235,21 @@ static ssize_t pm_qos_resume_latency_store(struct device *dev,
 	s32 value;
 	int ret;
 
-	if (kstrtos32(buf, 0, &value))
-		return -EINVAL;
+	if (!kstrtos32(buf, 0, &value)) {
+		/*
+		 * Prevent users from writing negative or "no constraint" values
+		 * directly.
+		 */
+		if (value < 0 || value == PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
+			return -EINVAL;
 
-	if (value < 0)
+		if (value == 0)
+			value = PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
+	} else if (!strcmp(buf, "n/a") || !strcmp(buf, "n/a\n")) {
+		value = 0;
+	} else {
 		return -EINVAL;
+	}
 
 	ret = dev_pm_qos_update_request(dev->power.qos->resume_latency_req,
 					value);
@@ -309,33 +326,6 @@ static ssize_t pm_qos_no_power_off_store(struct device *dev,
 static DEVICE_ATTR(pm_qos_no_power_off, 0644,
 		   pm_qos_no_power_off_show, pm_qos_no_power_off_store);
 
-static ssize_t pm_qos_remote_wakeup_show(struct device *dev,
-					 struct device_attribute *attr,
-					 char *buf)
-{
-	return sprintf(buf, "%d\n", !!(dev_pm_qos_requested_flags(dev)
-					& PM_QOS_FLAG_REMOTE_WAKEUP));
-}
-
-static ssize_t pm_qos_remote_wakeup_store(struct device *dev,
-					  struct device_attribute *attr,
-					  const char *buf, size_t n)
-{
-	int ret;
-
-	if (kstrtoint(buf, 0, &ret))
-		return -EINVAL;
-
-	if (ret != 0 && ret != 1)
-		return -EINVAL;
-
-	ret = dev_pm_qos_update_flags(dev, PM_QOS_FLAG_REMOTE_WAKEUP, ret);
-	return ret < 0 ? ret : n;
-}
-
-static DEVICE_ATTR(pm_qos_remote_wakeup, 0644,
-		   pm_qos_remote_wakeup_show, pm_qos_remote_wakeup_store);
-
 #ifdef CONFIG_PM_SLEEP
 static const char _enabled[] = "enabled";
 static const char _disabled[] = "disabled";
@@ -671,7 +661,6 @@ static const struct attribute_group pm_qos_latency_tolerance_attr_group = {
 
 static struct attribute *pm_qos_flags_attrs[] = {
 	&dev_attr_pm_qos_no_power_off.attr,
-	&dev_attr_pm_qos_remote_wakeup.attr,
 	NULL,
 };
 static const struct attribute_group pm_qos_flags_attr_group = {
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index cdd6f256da59..680ee1d36ac9 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -54,7 +54,7 @@ static unsigned int saved_count;
 
 static DEFINE_SPINLOCK(events_lock);
 
-static void pm_wakeup_timer_fn(unsigned long data);
+static void pm_wakeup_timer_fn(struct timer_list *t);
 
 static LIST_HEAD(wakeup_sources);
 
@@ -176,7 +176,7 @@ void wakeup_source_add(struct wakeup_source *ws)
 		return;
 
 	spin_lock_init(&ws->lock);
-	setup_timer(&ws->timer, pm_wakeup_timer_fn, (unsigned long)ws);
+	timer_setup(&ws->timer, pm_wakeup_timer_fn, 0);
 	ws->active = false;
 	ws->last_time = ktime_get();
 
@@ -481,8 +481,7 @@ static bool wakeup_source_not_registered(struct wakeup_source *ws)
 	 * Use timer struct to check if the given source is initialized
 	 * by wakeup_source_add.
 	 */
-	return ws->timer.function != pm_wakeup_timer_fn ||
-		   ws->timer.data != (unsigned long)ws;
+	return ws->timer.function != (TIMER_FUNC_TYPE)pm_wakeup_timer_fn;
 }
 
 /*
@@ -724,9 +723,9 @@ EXPORT_SYMBOL_GPL(pm_relax);
  * in @data if it is currently active and its timer has not been canceled and
  * the expiration time of the timer is not in future.
  */
-static void pm_wakeup_timer_fn(unsigned long data)
+static void pm_wakeup_timer_fn(struct timer_list *t)
 {
-	struct wakeup_source *ws = (struct wakeup_source *)data;
+	struct wakeup_source *ws = from_timer(ws, t, timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ws->lock, flags);
diff --git a/drivers/base/property.c b/drivers/base/property.c
index d0b65bbe7e15..851b1b6596a4 100644
--- a/drivers/base/property.c
+++ b/drivers/base/property.c
@@ -21,6 +21,7 @@
 #include <linux/phy.h>
 
 struct property_set {
+	struct device *dev;
 	struct fwnode_handle fwnode;
 	const struct property_entry *properties;
 };
@@ -682,6 +683,10 @@ EXPORT_SYMBOL_GPL(fwnode_property_match_string);
  * Caller is responsible to call fwnode_handle_put() on the returned
  * args->fwnode pointer.
  *
+ * Returns: %0 on success
+ *	    %-ENOENT when the index is out of bounds, the index has an empty
+ *		     reference or the property was not found
+ *	    %-EINVAL on parse error
  */
 int fwnode_property_get_reference_args(const struct fwnode_handle *fwnode,
 				       const char *prop, const char *nargs_prop,
@@ -891,6 +896,7 @@ static struct property_set *pset_copy_set(const struct property_set *pset)
 void device_remove_properties(struct device *dev)
 {
 	struct fwnode_handle *fwnode;
+	struct property_set *pset;
 
 	fwnode = dev_fwnode(dev);
 	if (!fwnode)
@@ -900,16 +906,16 @@ void device_remove_properties(struct device *dev)
 	 * the pset. If there is no real firmware node (ACPI/DT) primary
 	 * will hold the pset.
 	 */
-	if (is_pset_node(fwnode)) {
+	pset = to_pset_node(fwnode);
+	if (pset) {
 		set_primary_fwnode(dev, NULL);
-		pset_free_set(to_pset_node(fwnode));
 	} else {
-		fwnode = fwnode->secondary;
-		if (!IS_ERR(fwnode) && is_pset_node(fwnode)) {
+		pset = to_pset_node(fwnode->secondary);
+		if (pset && dev == pset->dev)
 			set_secondary_fwnode(dev, NULL);
-			pset_free_set(to_pset_node(fwnode));
-		}
 	}
+	if (pset && dev == pset->dev)
+		pset_free_set(pset);
 }
 EXPORT_SYMBOL_GPL(device_remove_properties);
 
@@ -938,6 +944,7 @@ int device_add_properties(struct device *dev,
 
 	p->fwnode.ops = &pset_fwnode_ops;
 	set_secondary_fwnode(dev, &p->fwnode);
+	p->dev = dev;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(device_add_properties);
@@ -1037,10 +1044,15 @@ EXPORT_SYMBOL_GPL(device_get_named_child_node);
 /**
  * fwnode_handle_get - Obtain a reference to a device node
  * @fwnode: Pointer to the device node to obtain the reference to.
+ *
+ * Returns the fwnode handle.
  */
-void fwnode_handle_get(struct fwnode_handle *fwnode)
+struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode)
 {
-	fwnode_call_void_op(fwnode, get);
+	if (!fwnode_has_op(fwnode, get))
+		return fwnode;
+
+	return fwnode_call_ptr_op(fwnode, get);
 }
 EXPORT_SYMBOL_GPL(fwnode_handle_get);
 
diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig
index 073c0b77e5b3..3a1535d812d8 100644
--- a/drivers/base/regmap/Kconfig
+++ b/drivers/base/regmap/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Generic register map support.  There are no user servicable options here,
 # this is an API intended to be used by other kernel subsystems.  These
 # subsystems should select the appropriate symbols.
@@ -5,6 +6,7 @@
 config REGMAP
 	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_W1 || REGMAP_AC97 || REGMAP_MMIO || REGMAP_IRQ)
 	select IRQ_DOMAIN if REGMAP_IRQ
+	select REGMAP_HWSPINLOCK if HWSPINLOCK=y
 	bool
 
 config REGCACHE_COMPRESSED
@@ -36,3 +38,6 @@ config REGMAP_MMIO
 
 config REGMAP_IRQ
 	bool
+
+config REGMAP_HWSPINLOCK
+	bool
diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile
index 0cf4abc8fbf1..0d298c446108 100644
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # For include/trace/define_trace.h to include trace.h
 CFLAGS_regmap.o := -I$(src)
 
diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 2a4435d76028..8641183cac2f 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -157,6 +157,8 @@ struct regmap {
 
 	struct rb_root range_tree;
 	void *selector_work_buf;	/* Scratch buffer used for selector */
+
+	struct hwspinlock *hwlock;
 };
 
 struct regcache_ops {
diff --git a/drivers/base/regmap/regmap-spi.c b/drivers/base/regmap/regmap-spi.c
index edd9a839d004..c7150dd264d5 100644
--- a/drivers/base/regmap/regmap-spi.c
+++ b/drivers/base/regmap/regmap-spi.c
@@ -102,7 +102,7 @@ static int regmap_spi_read(void *context,
 	return spi_write_then_read(spi, reg, reg_size, val, val_size);
 }
 
-static struct regmap_bus regmap_spi = {
+static const struct regmap_bus regmap_spi = {
 	.write = regmap_spi_write,
 	.gather_write = regmap_spi_gather_write,
 	.async_write = regmap_spi_async_write,
diff --git a/drivers/base/regmap/regmap-spmi.c b/drivers/base/regmap/regmap-spmi.c
index 4a36e415e938..0bfb8ed244d5 100644
--- a/drivers/base/regmap/regmap-spmi.c
+++ b/drivers/base/regmap/regmap-spmi.c
@@ -83,7 +83,7 @@ static int regmap_spmi_base_write(void *context, const void *data,
 					     count - 1);
 }
 
-static struct regmap_bus regmap_spmi_base = {
+static const struct regmap_bus regmap_spmi_base = {
 	.read				= regmap_spmi_base_read,
 	.write				= regmap_spmi_base_write,
 	.gather_write			= regmap_spmi_base_gather_write,
@@ -203,7 +203,7 @@ static int regmap_spmi_ext_write(void *context, const void *data,
 					    count - 2);
 }
 
-static struct regmap_bus regmap_spmi_ext = {
+static const struct regmap_bus regmap_spmi_ext = {
 	.read				= regmap_spmi_ext_read,
 	.write				= regmap_spmi_ext_write,
 	.gather_write			= regmap_spmi_ext_gather_write,
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index b9a779a4a739..8d516a9bfc01 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -20,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/delay.h>
 #include <linux/log2.h>
+#include <linux/hwspinlock.h>
 
 #define CREATE_TRACE_POINTS
 #include "trace.h"
@@ -413,6 +414,51 @@ static unsigned int regmap_parse_64_native(const void *buf)
 }
 #endif
 
+#ifdef REGMAP_HWSPINLOCK
+static void regmap_lock_hwlock(void *__map)
+{
+	struct regmap *map = __map;
+
+	hwspin_lock_timeout(map->hwlock, UINT_MAX);
+}
+
+static void regmap_lock_hwlock_irq(void *__map)
+{
+	struct regmap *map = __map;
+
+	hwspin_lock_timeout_irq(map->hwlock, UINT_MAX);
+}
+
+static void regmap_lock_hwlock_irqsave(void *__map)
+{
+	struct regmap *map = __map;
+
+	hwspin_lock_timeout_irqsave(map->hwlock, UINT_MAX,
+				    &map->spinlock_flags);
+}
+
+static void regmap_unlock_hwlock(void *__map)
+{
+	struct regmap *map = __map;
+
+	hwspin_unlock(map->hwlock);
+}
+
+static void regmap_unlock_hwlock_irq(void *__map)
+{
+	struct regmap *map = __map;
+
+	hwspin_unlock_irq(map->hwlock);
+}
+
+static void regmap_unlock_hwlock_irqrestore(void *__map)
+{
+	struct regmap *map = __map;
+
+	hwspin_unlock_irqrestore(map->hwlock, &map->spinlock_flags);
+}
+#endif
+
 static void regmap_lock_mutex(void *__map)
 {
 	struct regmap *map = __map;
@@ -627,6 +673,34 @@ struct regmap *__regmap_init(struct device *dev,
 		map->lock = config->lock;
 		map->unlock = config->unlock;
 		map->lock_arg = config->lock_arg;
+	} else if (config->hwlock_id) {
+#ifdef REGMAP_HWSPINLOCK
+		map->hwlock = hwspin_lock_request_specific(config->hwlock_id);
+		if (!map->hwlock) {
+			ret = -ENXIO;
+			goto err_map;
+		}
+
+		switch (config->hwlock_mode) {
+		case HWLOCK_IRQSTATE:
+			map->lock = regmap_lock_hwlock_irqsave;
+			map->unlock = regmap_unlock_hwlock_irqrestore;
+			break;
+		case HWLOCK_IRQ:
+			map->lock = regmap_lock_hwlock_irq;
+			map->unlock = regmap_unlock_hwlock_irq;
+			break;
+		default:
+			map->lock = regmap_lock_hwlock;
+			map->unlock = regmap_unlock_hwlock;
+			break;
+		}
+
+		map->lock_arg = map;
+#else
+		ret = -EINVAL;
+		goto err_map;
+#endif
 	} else {
 		if ((bus && bus->fast_io) ||
 		    config->fast_io) {
@@ -729,7 +803,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_write = regmap_format_2_6_write;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 
@@ -739,7 +813,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_write = regmap_format_4_12_write;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 
@@ -749,7 +823,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_write = regmap_format_7_9_write;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 
@@ -759,7 +833,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_write = regmap_format_10_14_write;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 
@@ -779,13 +853,13 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_reg = regmap_format_16_native;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 
 	case 24:
 		if (reg_endian != REGMAP_ENDIAN_BIG)
-			goto err_map;
+			goto err_hwlock;
 		map->format.format_reg = regmap_format_24;
 		break;
 
@@ -801,7 +875,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_reg = regmap_format_32_native;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 
@@ -818,13 +892,13 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.format_reg = regmap_format_64_native;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 #endif
 
 	default:
-		goto err_map;
+		goto err_hwlock;
 	}
 
 	if (val_endian == REGMAP_ENDIAN_NATIVE)
@@ -853,12 +927,12 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.parse_val = regmap_parse_16_native;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 	case 24:
 		if (val_endian != REGMAP_ENDIAN_BIG)
-			goto err_map;
+			goto err_hwlock;
 		map->format.format_val = regmap_format_24;
 		map->format.parse_val = regmap_parse_24;
 		break;
@@ -879,7 +953,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.parse_val = regmap_parse_32_native;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 #ifdef CONFIG_64BIT
@@ -900,7 +974,7 @@ struct regmap *__regmap_init(struct device *dev,
 			map->format.parse_val = regmap_parse_64_native;
 			break;
 		default:
-			goto err_map;
+			goto err_hwlock;
 		}
 		break;
 #endif
@@ -909,18 +983,18 @@ struct regmap *__regmap_init(struct device *dev,
 	if (map->format.format_write) {
 		if ((reg_endian != REGMAP_ENDIAN_BIG) ||
 		    (val_endian != REGMAP_ENDIAN_BIG))
-			goto err_map;
+			goto err_hwlock;
 		map->use_single_write = true;
 	}
 
 	if (!map->format.format_write &&
 	    !(map->format.format_reg && map->format.format_val))
-		goto err_map;
+		goto err_hwlock;
 
 	map->work_buf = kzalloc(map->format.buf_size, GFP_KERNEL);
 	if (map->work_buf == NULL) {
 		ret = -ENOMEM;
-		goto err_map;
+		goto err_hwlock;
 	}
 
 	if (map->format.format_write) {
@@ -1041,6 +1115,9 @@ err_regcache:
 err_range:
 	regmap_range_exit(map);
 	kfree(map->work_buf);
+err_hwlock:
+	if (IS_ENABLED(REGMAP_HWSPINLOCK) && map->hwlock)
+		hwspin_lock_free(map->hwlock);
 err_map:
 	kfree(map);
 err:
@@ -1228,6 +1305,8 @@ void regmap_exit(struct regmap *map)
 		kfree(async->work_buf);
 		kfree(async);
 	}
+	if (IS_ENABLED(REGMAP_HWSPINLOCK) && map->hwlock)
+		hwspin_lock_free(map->hwlock);
 	kfree(map);
 }
 EXPORT_SYMBOL_GPL(regmap_exit);
diff --git a/drivers/base/regmap/trace.h b/drivers/base/regmap/trace.h
index 64586a1c5a42..d4066fa079ab 100644
--- a/drivers/base/regmap/trace.h
+++ b/drivers/base/regmap/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM regmap
 
diff --git a/drivers/base/test/Kconfig b/drivers/base/test/Kconfig
index 9aa0d45a60db..86e85daa80bf 100644
--- a/drivers/base/test/Kconfig
+++ b/drivers/base/test/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config TEST_ASYNC_DRIVER_PROBE
 	tristate "Build kernel module to test asynchronous driver probing"
 	depends on m
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig
index 54f81c554815..a2df1ad03463 100644
--- a/drivers/bcma/Kconfig
+++ b/drivers/bcma/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config BCMA_POSSIBLE
 	bool
 	depends on HAS_IOMEM && HAS_DMA
diff --git a/drivers/bcma/Makefile b/drivers/bcma/Makefile
index 087948a1d20d..f8c37de35da2 100644
--- a/drivers/bcma/Makefile
+++ b/drivers/bcma/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 bcma-y					+= main.o scan.o core.o sprom.o
 bcma-y					+= driver_chipcommon.o driver_chipcommon_pmu.o
 bcma-y					+= driver_chipcommon_b.o
diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h
index 168fa175d65a..a4aac370f21f 100644
--- a/drivers/bcma/bcma_private.h
+++ b/drivers/bcma/bcma_private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_PRIVATE_H_
 #define LINUX_BCMA_PRIVATE_H_
 
diff --git a/drivers/bcma/scan.h b/drivers/bcma/scan.h
index 30eb475e4d19..e53079a3daf7 100644
--- a/drivers/bcma/scan.h
+++ b/drivers/bcma/scan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCMA_SCAN_H_
 #define BCMA_SCAN_H_
 
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 4a438b8abe27..923b417eaf4c 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Block device driver configuration
 #
@@ -17,7 +18,7 @@ if BLK_DEV
 
 config BLK_DEV_NULL_BLK
 	tristate "Null test block driver"
-	depends on CONFIGFS_FS
+	select CONFIGFS_FS
 
 config BLK_DEV_FD
 	tristate "Normal floppy disk support"
@@ -67,9 +68,13 @@ config AMIGA_Z2RAM
 	  To compile this driver as a module, choose M here: the
 	  module will be called z2ram.
 
+config CDROM
+	tristate
+
 config GDROM
 	tristate "SEGA Dreamcast GD-ROM drive"
 	depends on SH_DREAMCAST
+	select CDROM
 	select BLK_SCSI_REQUEST # only for the generic cdrom code
 	help
 	  A standard SEGA Dreamcast comes with a modified CD ROM drive called a
@@ -347,6 +352,7 @@ config BLK_DEV_RAM_DAX
 config CDROM_PKTCDVD
 	tristate "Packet writing on CD/DVD media (DEPRECATED)"
 	depends on !UML
+	select CDROM
 	select BLK_SCSI_REQUEST
 	help
 	  Note: This driver is deprecated and will be removed from the
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 1f456d86a190..dc061158b403 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel block device drivers.
 #
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 49908c74bfcb..4e3fb9f104af 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -323,7 +323,7 @@ static void fd_deselect (int drive)
 
 }
 
-static void motor_on_callback(unsigned long nr)
+static void motor_on_callback(unsigned long ignored)
 {
 	if (!(ciaa.pra & DSKRDY) || --on_attempts == 0) {
 		complete_all(&motor_on_completion);
@@ -344,7 +344,6 @@ static int fd_motor_on(int nr)
 		fd_select(nr);
 
 		reinit_completion(&motor_on_completion);
-		motor_on_timer.data = nr;
 		mod_timer(&motor_on_timer, jiffies + HZ/2);
 
 		on_attempts = 10;
diff --git a/drivers/block/aoe/aoemain.c b/drivers/block/aoe/aoemain.c
index 4b987c2fefbe..251482066977 100644
--- a/drivers/block/aoe/aoemain.c
+++ b/drivers/block/aoe/aoemain.c
@@ -15,49 +15,19 @@ MODULE_AUTHOR("Sam Hopkins <sah@coraid.com>");
 MODULE_DESCRIPTION("AoE block/char driver for 2.6.2 and newer 2.6 kernels");
 MODULE_VERSION(VERSION);
 
-enum { TINIT, TRUN, TKILL };
+static struct timer_list timer;
 
-static void
-discover_timer(ulong vp)
+static void discover_timer(struct timer_list *t)
 {
-	static struct timer_list t;
-	static volatile ulong die;
-	static spinlock_t lock;
-	ulong flags;
-	enum { DTIMERTICK = HZ * 60 }; /* one minute */
-
-	switch (vp) {
-	case TINIT:
-		init_timer(&t);
-		spin_lock_init(&lock);
-		t.data = TRUN;
-		t.function = discover_timer;
-		die = 0;
-	case TRUN:
-		spin_lock_irqsave(&lock, flags);
-		if (!die) {
-			t.expires = jiffies + DTIMERTICK;
-			add_timer(&t);
-		}
-		spin_unlock_irqrestore(&lock, flags);
-
-		aoecmd_cfg(0xffff, 0xff);
-		return;
-	case TKILL:
-		spin_lock_irqsave(&lock, flags);
-		die = 1;
-		spin_unlock_irqrestore(&lock, flags);
+	mod_timer(t, jiffies + HZ * 60); /* one minute */
 
-		del_timer_sync(&t);
-	default:
-		return;
-	}
+	aoecmd_cfg(0xffff, 0xff);
 }
 
 static void
 aoe_exit(void)
 {
-	discover_timer(TKILL);
+	del_timer_sync(&timer);
 
 	aoenet_exit();
 	unregister_blkdev(AOE_MAJOR, DEVICE_NAME);
@@ -93,7 +63,9 @@ aoe_init(void)
 		goto blkreg_fail;
 	}
 	printk(KERN_INFO "aoe: AoE v%s initialised.\n", VERSION);
-	discover_timer(TINIT);
+
+	timer_setup(&timer, discover_timer, 0);
+	discover_timer(&timer);
 	return 0;
  blkreg_fail:
 	aoecmd_exit();
diff --git a/drivers/block/ataflop.c b/drivers/block/ataflop.c
index 92da886180aa..ae596e55bcb6 100644
--- a/drivers/block/ataflop.c
+++ b/drivers/block/ataflop.c
@@ -373,10 +373,10 @@ static void floppy_release(struct gendisk *disk, fmode_t mode);
 
 /************************* End of Prototypes **************************/
 
-static DEFINE_TIMER(motor_off_timer, fd_motor_off_timer, 0, 0);
-static DEFINE_TIMER(readtrack_timer, fd_readtrack_check, 0, 0);
-static DEFINE_TIMER(timeout_timer, fd_times_out, 0, 0);
-static DEFINE_TIMER(fd_timer, check_change, 0, 0);
+static DEFINE_TIMER(motor_off_timer, fd_motor_off_timer);
+static DEFINE_TIMER(readtrack_timer, fd_readtrack_check);
+static DEFINE_TIMER(timeout_timer, fd_times_out);
+static DEFINE_TIMER(fd_timer, check_change);
 	
 static void fd_end_request_cur(blk_status_t err)
 {
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index bbd0d186cfc0..c1cf87718c2e 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -60,7 +60,6 @@ struct brd_device {
 /*
  * Look up and return a brd's page for a given sector.
  */
-static DEFINE_MUTEX(brd_mutex);
 static struct page *brd_lookup_page(struct brd_device *brd, sector_t sector)
 {
 	pgoff_t idx;
@@ -342,7 +341,7 @@ static long __brd_direct_access(struct brd_device *brd, pgoff_t pgoff,
 
 	if (!brd)
 		return -ENODEV;
-	page = brd_insert_page(brd, PFN_PHYS(pgoff) / 512);
+	page = brd_insert_page(brd, (sector_t)pgoff << PAGE_SECTORS_SHIFT);
 	if (!page)
 		return -ENOSPC;
 	*kaddr = page_address(page);
diff --git a/drivers/block/cryptoloop.c b/drivers/block/cryptoloop.c
index 74e03aa537ad..7033a4beda66 100644
--- a/drivers/block/cryptoloop.c
+++ b/drivers/block/cryptoloop.c
@@ -43,7 +43,6 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info)
 	int cipher_len;
 	int mode_len;
 	char cms[LO_NAME_SIZE];			/* cipher-mode string */
-	char *cipher;
 	char *mode;
 	char *cmsp = cms;			/* c-m string pointer */
 	struct crypto_skcipher *tfm;
@@ -56,7 +55,6 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info)
 	strncpy(cms, info->lo_crypt_name, LO_NAME_SIZE);
 	cms[LO_NAME_SIZE - 1] = 0;
 
-	cipher = cmsp;
 	cipher_len = strcspn(cmsp, "-");
 
 	mode = cmsp + cipher_len;
diff --git a/drivers/block/drbd/Kconfig b/drivers/block/drbd/Kconfig
index 7845bd6ee414..87aab6910d2d 100644
--- a/drivers/block/drbd/Kconfig
+++ b/drivers/block/drbd/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # DRBD device driver configuration
 #
diff --git a/drivers/block/drbd/Makefile b/drivers/block/drbd/Makefile
index 4464e353c1e8..8bd534697d1b 100644
--- a/drivers/block/drbd/Makefile
+++ b/drivers/block/drbd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 drbd-y := drbd_bitmap.o drbd_proc.o
 drbd-y += drbd_worker.o drbd_receiver.o drbd_req.o drbd_actlog.o
 drbd-y += drbd_main.o drbd_strings.o drbd_nl.o
diff --git a/drivers/block/drbd/drbd_debugfs.c b/drivers/block/drbd/drbd_debugfs.c
index 494837e59f23..ab21976a87b2 100644
--- a/drivers/block/drbd/drbd_debugfs.c
+++ b/drivers/block/drbd/drbd_debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) "drbd debugfs: " fmt
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/block/drbd/drbd_debugfs.h b/drivers/block/drbd/drbd_debugfs.h
index 8bee21340dce..4ecfbb3358d7 100644
--- a/drivers/block/drbd/drbd_debugfs.h
+++ b/drivers/block/drbd/drbd_debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/debugfs.h>
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 7e8589ce631c..06ecee1b528e 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1551,8 +1551,8 @@ extern int w_restart_disk_io(struct drbd_work *, int);
 extern int w_send_out_of_sync(struct drbd_work *, int);
 extern int w_start_resync(struct drbd_work *, int);
 
-extern void resync_timer_fn(unsigned long data);
-extern void start_resync_timer_fn(unsigned long data);
+extern void resync_timer_fn(struct timer_list *t);
+extern void start_resync_timer_fn(struct timer_list *t);
 
 extern void drbd_endio_write_sec_final(struct drbd_peer_request *peer_req);
 
diff --git a/drivers/block/drbd/drbd_interval.c b/drivers/block/drbd/drbd_interval.c
index 51b25ad85251..c58986556161 100644
--- a/drivers/block/drbd/drbd_interval.c
+++ b/drivers/block/drbd/drbd_interval.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/bug.h>
 #include <linux/rbtree_augmented.h>
 #include "drbd_interval.h"
diff --git a/drivers/block/drbd/drbd_interval.h b/drivers/block/drbd/drbd_interval.h
index 23c5a94428d2..b8c2dee5edc8 100644
--- a/drivers/block/drbd/drbd_interval.h
+++ b/drivers/block/drbd/drbd_interval.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRBD_INTERVAL_H
 #define __DRBD_INTERVAL_H
 
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 8cb3791898ae..4b4697a1f963 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -64,7 +64,7 @@
 static DEFINE_MUTEX(drbd_main_mutex);
 static int drbd_open(struct block_device *bdev, fmode_t mode);
 static void drbd_release(struct gendisk *gd, fmode_t mode);
-static void md_sync_timer_fn(unsigned long data);
+static void md_sync_timer_fn(struct timer_list *t);
 static int w_bitmap_io(struct drbd_work *w, int unused);
 
 MODULE_AUTHOR("Philipp Reisner <phil@linbit.com>, "
@@ -2023,14 +2023,10 @@ void drbd_init_set_defaults(struct drbd_device *device)
 	device->unplug_work.cb  = w_send_write_hint;
 	device->bm_io_work.w.cb = w_bitmap_io;
 
-	setup_timer(&device->resync_timer, resync_timer_fn,
-			(unsigned long)device);
-	setup_timer(&device->md_sync_timer, md_sync_timer_fn,
-			(unsigned long)device);
-	setup_timer(&device->start_resync_timer, start_resync_timer_fn,
-			(unsigned long)device);
-	setup_timer(&device->request_timer, request_timer_fn,
-			(unsigned long)device);
+	timer_setup(&device->resync_timer, resync_timer_fn, 0);
+	timer_setup(&device->md_sync_timer, md_sync_timer_fn, 0);
+	timer_setup(&device->start_resync_timer, start_resync_timer_fn, 0);
+	timer_setup(&device->request_timer, request_timer_fn, 0);
 
 	init_waitqueue_head(&device->misc_wait);
 	init_waitqueue_head(&device->state_wait);
@@ -3721,9 +3717,9 @@ int drbd_md_test_flag(struct drbd_backing_dev *bdev, int flag)
 	return (bdev->md.flags & flag) != 0;
 }
 
-static void md_sync_timer_fn(unsigned long data)
+static void md_sync_timer_fn(struct timer_list *t)
 {
-	struct drbd_device *device = (struct drbd_device *) data;
+	struct drbd_device *device = from_timer(device, t, md_sync_timer);
 	drbd_device_post_work(device, MD_SYNC);
 }
 
diff --git a/drivers/block/drbd/drbd_nla.c b/drivers/block/drbd/drbd_nla.c
index 6bf806df60dc..8e261cb5198b 100644
--- a/drivers/block/drbd/drbd_nla.c
+++ b/drivers/block/drbd/drbd_nla.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <net/netlink.h>
 #include <linux/drbd_genl_api.h>
diff --git a/drivers/block/drbd/drbd_nla.h b/drivers/block/drbd/drbd_nla.h
index 679c2d5b4535..f5eaffb6474e 100644
--- a/drivers/block/drbd/drbd_nla.h
+++ b/drivers/block/drbd/drbd_nla.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRBD_NLA_H
 #define __DRBD_NLA_H
 
diff --git a/drivers/block/drbd/drbd_protocol.h b/drivers/block/drbd/drbd_protocol.h
index 4d296800f706..c3081f93051c 100644
--- a/drivers/block/drbd/drbd_protocol.h
+++ b/drivers/block/drbd/drbd_protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRBD_PROTOCOL_H
 #define __DRBD_PROTOCOL_H
 
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 796eaf347dc0..cb2fa63f6bc0 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -5056,7 +5056,7 @@ static int drbd_disconnected(struct drbd_peer_device *peer_device)
 	wake_up(&device->misc_wait);
 
 	del_timer_sync(&device->resync_timer);
-	resync_timer_fn((unsigned long)device);
+	resync_timer_fn(&device->resync_timer);
 
 	/* wait for all w_e_end_data_req, w_e_end_rsdata_req, w_send_barrier,
 	 * w_make_resync_request etc. which may still be on the worker queue
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index de8566e55334..a500e738d929 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1714,9 +1714,9 @@ static bool net_timeout_reached(struct drbd_request *net_req,
  * to expire twice (worst case) to become effective. Good enough.
  */
 
-void request_timer_fn(unsigned long data)
+void request_timer_fn(struct timer_list *t)
 {
-	struct drbd_device *device = (struct drbd_device *) data;
+	struct drbd_device *device = from_timer(device, t, request_timer);
 	struct drbd_connection *connection = first_peer_device(device)->connection;
 	struct drbd_request *req_read, *req_write, *req_peer; /* oldest request */
 	struct net_conf *nc;
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h
index a2254f825601..cb97b3b30962 100644
--- a/drivers/block/drbd/drbd_req.h
+++ b/drivers/block/drbd/drbd_req.h
@@ -294,7 +294,7 @@ extern int __req_mod(struct drbd_request *req, enum drbd_req_event what,
 		struct bio_and_error *m);
 extern void complete_master_bio(struct drbd_device *device,
 		struct bio_and_error *m);
-extern void request_timer_fn(unsigned long data);
+extern void request_timer_fn(struct timer_list *t);
 extern void tl_restart(struct drbd_connection *connection, enum drbd_req_event what);
 extern void _tl_restart(struct drbd_connection *connection, enum drbd_req_event what);
 extern void tl_abort_disk_io(struct drbd_device *device);
diff --git a/drivers/block/drbd/drbd_state.h b/drivers/block/drbd/drbd_state.h
index 0276c98fbbdd..ea58301d0895 100644
--- a/drivers/block/drbd/drbd_state.h
+++ b/drivers/block/drbd/drbd_state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRBD_STATE_H
 #define DRBD_STATE_H
 
diff --git a/drivers/block/drbd/drbd_state_change.h b/drivers/block/drbd/drbd_state_change.h
index 9e503a1a0bfb..ba80f612d6ab 100644
--- a/drivers/block/drbd/drbd_state_change.h
+++ b/drivers/block/drbd/drbd_state_change.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRBD_STATE_CHANGE_H
 #define DRBD_STATE_CHANGE_H
 
diff --git a/drivers/block/drbd/drbd_strings.h b/drivers/block/drbd/drbd_strings.h
index f9923cc88afb..87b94a27358a 100644
--- a/drivers/block/drbd/drbd_strings.h
+++ b/drivers/block/drbd/drbd_strings.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRBD_STRINGS_H
 #define __DRBD_STRINGS_H
 
diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c
index 03471b3fce86..1476cb3439f4 100644
--- a/drivers/block/drbd/drbd_worker.c
+++ b/drivers/block/drbd/drbd_worker.c
@@ -457,9 +457,9 @@ int w_resync_timer(struct drbd_work *w, int cancel)
 	return 0;
 }
 
-void resync_timer_fn(unsigned long data)
+void resync_timer_fn(struct timer_list *t)
 {
-	struct drbd_device *device = (struct drbd_device *) data;
+	struct drbd_device *device = from_timer(device, t, resync_timer);
 
 	drbd_queue_work_if_unqueued(
 		&first_peer_device(device)->connection->sender_work,
@@ -1705,9 +1705,9 @@ void drbd_rs_controller_reset(struct drbd_device *device)
 	rcu_read_unlock();
 }
 
-void start_resync_timer_fn(unsigned long data)
+void start_resync_timer_fn(struct timer_list *t)
 {
-	struct drbd_device *device = (struct drbd_device *) data;
+	struct drbd_device *device = from_timer(device, t, start_resync_timer);
 	drbd_device_post_work(device, RS_START);
 }
 
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 85de67334695..bc8e61506968 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -476,6 +476,8 @@ static void lo_rw_aio_complete(struct kiocb *iocb, long ret, long ret2)
 {
 	struct loop_cmd *cmd = container_of(iocb, struct loop_cmd, iocb);
 
+	if (cmd->css)
+		css_put(cmd->css);
 	cmd->ret = ret;
 	lo_rw_aio_do_completion(cmd);
 }
@@ -535,6 +537,8 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
 	cmd->iocb.ki_filp = file;
 	cmd->iocb.ki_complete = lo_rw_aio_complete;
 	cmd->iocb.ki_flags = IOCB_DIRECT;
+	if (cmd->css)
+		kthread_associate_blkcg(cmd->css);
 
 	if (rw == WRITE)
 		ret = call_write_iter(file, &cmd->iocb, &iter);
@@ -542,6 +546,7 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
 		ret = call_read_iter(file, &cmd->iocb, &iter);
 
 	lo_rw_aio_do_completion(cmd);
+	kthread_associate_blkcg(NULL);
 
 	if (ret != -EIOCBQUEUED)
 		cmd->iocb.ki_complete(&cmd->iocb, ret, 0);
@@ -1686,6 +1691,14 @@ static blk_status_t loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 		break;
 	}
 
+	/* always use the first bio's css */
+#ifdef CONFIG_BLK_CGROUP
+	if (cmd->use_aio && cmd->rq->bio && cmd->rq->bio->bi_css) {
+		cmd->css = cmd->rq->bio->bi_css;
+		css_get(cmd->css);
+	} else
+#endif
+		cmd->css = NULL;
 	kthread_queue_work(&lo->worker, &cmd->work);
 
 	return BLK_STS_OK;
diff --git a/drivers/block/loop.h b/drivers/block/loop.h
index f68c1d50802f..0f45416e4fcf 100644
--- a/drivers/block/loop.h
+++ b/drivers/block/loop.h
@@ -67,13 +67,12 @@ struct loop_device {
 struct loop_cmd {
 	struct kthread_work work;
 	struct request *rq;
-	union {
-		bool use_aio; /* use AIO interface to handle I/O */
-		atomic_t ref; /* only for aio */
-	};
+	bool use_aio; /* use AIO interface to handle I/O */
+	atomic_t ref; /* only for aio */
 	long ret;
 	struct kiocb iocb;
 	struct bio_vec *bvec;
+	struct cgroup_subsys_state *css;
 };
 
 /* Support for loadable transfer modules */
diff --git a/drivers/block/mtip32xx/Kconfig b/drivers/block/mtip32xx/Kconfig
index 0ba837fc62a8..bf221358567e 100644
--- a/drivers/block/mtip32xx/Kconfig
+++ b/drivers/block/mtip32xx/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # mtip32xx device driver configuration
 #
diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 4a3cfc7940de..b8af7352a18f 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -887,12 +887,9 @@ static void mtip_issue_non_ncq_command(struct mtip_port *port, int tag)
 static bool mtip_pause_ncq(struct mtip_port *port,
 				struct host_to_dev_fis *fis)
 {
-	struct host_to_dev_fis *reply;
 	unsigned long task_file_data;
 
-	reply = port->rxfis + RX_FIS_D2H_REG;
 	task_file_data = readl(port->mmio+PORT_TFDATA);
-
 	if ((task_file_data & 1))
 		return false;
 
@@ -1020,7 +1017,6 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 		.opts = opts
 	};
 	int rv = 0;
-	unsigned long start;
 
 	/* Make sure the buffer is 8 byte aligned. This is asic specific. */
 	if (buffer & 0x00000007) {
@@ -1057,7 +1053,6 @@ static int mtip_exec_internal_command(struct mtip_port *port,
 	/* Copy the command to the command table */
 	memcpy(int_cmd->command, fis, fis_len*4);
 
-	start = jiffies;
 	rq->timeout = timeout;
 
 	/* insert request and run queue */
@@ -3015,7 +3010,6 @@ static int mtip_hw_init(struct driver_data *dd)
 {
 	int i;
 	int rv;
-	unsigned int num_command_slots;
 	unsigned long timeout, timetaken;
 
 	dd->mmio = pcim_iomap_table(dd->pdev)[MTIP_ABAR];
@@ -3025,7 +3019,6 @@ static int mtip_hw_init(struct driver_data *dd)
 		rv = -EIO;
 		goto out1;
 	}
-	num_command_slots = dd->slot_groups * 32;
 
 	hba_setup(dd);
 
diff --git a/drivers/block/nbd.c b/drivers/block/nbd.c
index 2aa87cbdede0..5f2a4240a204 100644
--- a/drivers/block/nbd.c
+++ b/drivers/block/nbd.c
@@ -243,7 +243,6 @@ static void nbd_size_set(struct nbd_device *nbd, loff_t blocksize,
 	struct nbd_config *config = nbd->config;
 	config->blksize = blocksize;
 	config->bytesize = blocksize * nr_blocks;
-	nbd_size_update(nbd);
 }
 
 static void nbd_complete_rq(struct request *req)
@@ -289,15 +288,6 @@ static enum blk_eh_timer_return nbd_xmit_timeout(struct request *req,
 		cmd->status = BLK_STS_TIMEOUT;
 		return BLK_EH_HANDLED;
 	}
-
-	/* If we are waiting on our dead timer then we could get timeout
-	 * callbacks for our request.  For this we just want to reset the timer
-	 * and let the queue side take care of everything.
-	 */
-	if (!completion_done(&cmd->send_complete)) {
-		nbd_config_put(nbd);
-		return BLK_EH_RESET_TIMER;
-	}
 	config = nbd->config;
 
 	if (config->num_connections > 1) {
@@ -387,6 +377,15 @@ static int sock_xmit(struct nbd_device *nbd, int index, int send,
 	return result;
 }
 
+/*
+ * Different settings for sk->sk_sndtimeo can result in different return values
+ * if there is a signal pending when we enter sendmsg, because reasons?
+ */
+static inline int was_interrupted(int result)
+{
+	return result == -ERESTARTSYS || result == -EINTR;
+}
+
 /* always call with the tx_lock held */
 static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
 {
@@ -459,7 +458,7 @@ static int nbd_send_cmd(struct nbd_device *nbd, struct nbd_cmd *cmd, int index)
 	result = sock_xmit(nbd, index, 1, &from,
 			(type == NBD_CMD_WRITE) ? MSG_MORE : 0, &sent);
 	if (result <= 0) {
-		if (result == -ERESTARTSYS) {
+		if (was_interrupted(result)) {
 			/* If we havne't sent anything we can just return BUSY,
 			 * however if we have sent something we need to make
 			 * sure we only allow this req to be sent until we are
@@ -503,7 +502,7 @@ send_pages:
 			}
 			result = sock_xmit(nbd, index, 1, &from, flags, &sent);
 			if (result <= 0) {
-				if (result == -ERESTARTSYS) {
+				if (was_interrupted(result)) {
 					/* We've already sent the header, we
 					 * have no choice but to set pending and
 					 * return BUSY.
@@ -715,9 +714,9 @@ static int wait_for_reconnect(struct nbd_device *nbd)
 		return 0;
 	if (test_bit(NBD_DISCONNECTED, &config->runtime_flags))
 		return 0;
-	wait_event_interruptible_timeout(config->conn_wait,
-					 atomic_read(&config->live_connections),
-					 config->dead_conn_timeout);
+	wait_event_timeout(config->conn_wait,
+			   atomic_read(&config->live_connections),
+			   config->dead_conn_timeout);
 	return atomic_read(&config->live_connections);
 }
 
@@ -732,6 +731,7 @@ static int nbd_handle_cmd(struct nbd_cmd *cmd, int index)
 	if (!refcount_inc_not_zero(&nbd->config_refs)) {
 		dev_err_ratelimited(disk_to_dev(nbd->disk),
 				    "Socks array is empty\n");
+		blk_mq_start_request(req);
 		return -EINVAL;
 	}
 	config = nbd->config;
@@ -740,6 +740,7 @@ static int nbd_handle_cmd(struct nbd_cmd *cmd, int index)
 		dev_err_ratelimited(disk_to_dev(nbd->disk),
 				    "Attempted send on invalid socket\n");
 		nbd_config_put(nbd);
+		blk_mq_start_request(req);
 		return -EINVAL;
 	}
 	cmd->status = BLK_STS_OK;
@@ -763,6 +764,7 @@ again:
 			 */
 			sock_shutdown(nbd);
 			nbd_config_put(nbd);
+			blk_mq_start_request(req);
 			return -EIO;
 		}
 		goto again;
@@ -773,6 +775,7 @@ again:
 	 * here so that it gets put _after_ the request that is already on the
 	 * dispatch list.
 	 */
+	blk_mq_start_request(req);
 	if (unlikely(nsock->pending && nsock->pending != req)) {
 		blk_mq_requeue_request(req, true);
 		ret = 0;
@@ -785,10 +788,10 @@ again:
 	ret = nbd_send_cmd(nbd, cmd, index);
 	if (ret == -EAGAIN) {
 		dev_err_ratelimited(disk_to_dev(nbd->disk),
-				    "Request send failed trying another connection\n");
+				    "Request send failed, requeueing\n");
 		nbd_mark_nsock_dead(nbd, nsock, 1);
-		mutex_unlock(&nsock->tx_lock);
-		goto again;
+		blk_mq_requeue_request(req, true);
+		ret = 0;
 	}
 out:
 	mutex_unlock(&nsock->tx_lock);
@@ -812,7 +815,6 @@ static blk_status_t nbd_queue_rq(struct blk_mq_hw_ctx *hctx,
 	 * done sending everything over the wire.
 	 */
 	init_completion(&cmd->send_complete);
-	blk_mq_start_request(bd->rq);
 
 	/* We can be called directly from the user space process, which means we
 	 * could possibly have signals pending so our sendmsg will fail.  In
@@ -820,9 +822,13 @@ static blk_status_t nbd_queue_rq(struct blk_mq_hw_ctx *hctx,
 	 * appropriate.
 	 */
 	ret = nbd_handle_cmd(cmd, hctx->queue_num);
+	if (ret < 0)
+		ret = BLK_STS_IOERR;
+	else if (!ret)
+		ret = BLK_STS_OK;
 	complete(&cmd->send_complete);
 
-	return ret < 0 ? BLK_STS_IOERR : BLK_STS_OK;
+	return ret;
 }
 
 static int nbd_add_socket(struct nbd_device *nbd, unsigned long arg,
@@ -1090,6 +1096,7 @@ static int nbd_start_device(struct nbd_device *nbd)
 		args->index = i;
 		queue_work(recv_workqueue, &args->work);
 	}
+	nbd_size_update(nbd);
 	return error;
 }
 
@@ -1194,6 +1201,12 @@ static int nbd_ioctl(struct block_device *bdev, fmode_t mode,
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
+	/* The block layer will pass back some non-nbd ioctls in case we have
+	 * special handling for them, but we don't so just return an error.
+	 */
+	if (_IOC_TYPE(cmd) != 0xab)
+		return -EINVAL;
+
 	mutex_lock(&nbd->config_lock);
 
 	/* Don't allow ioctl operations on a nbd device that was created with
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index 8042c26ea9e6..c61960deb74a 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -154,6 +154,10 @@ enum {
 	NULL_Q_MQ		= 2,
 };
 
+static int g_no_sched;
+module_param_named(no_sched, g_no_sched, int, S_IRUGO);
+MODULE_PARM_DESC(no_sched, "No io scheduler");
+
 static int g_submit_queues = 1;
 module_param_named(submit_queues, g_submit_queues, int, S_IRUGO);
 MODULE_PARM_DESC(submit_queues, "Number of submission queues");
@@ -476,7 +480,7 @@ static struct configfs_item_operations nullb_device_ops = {
 	.release	= nullb_device_release,
 };
 
-static struct config_item_type nullb_device_type = {
+static const struct config_item_type nullb_device_type = {
 	.ct_item_ops	= &nullb_device_ops,
 	.ct_attrs	= nullb_device_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -528,7 +532,7 @@ static struct configfs_group_operations nullb_group_ops = {
 	.drop_item	= nullb_group_drop_item,
 };
 
-static struct config_item_type nullb_group_type = {
+static const struct config_item_type nullb_group_type = {
 	.ct_group_ops	= &nullb_group_ops,
 	.ct_attrs	= nullb_group_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -1754,6 +1758,8 @@ static int null_init_tag_set(struct nullb *nullb, struct blk_mq_tag_set *set)
 	set->numa_node = nullb ? nullb->dev->home_node : g_home_node;
 	set->cmd_size	= sizeof(struct nullb_cmd);
 	set->flags = BLK_MQ_F_SHOULD_MERGE;
+	if (g_no_sched)
+		set->flags |= BLK_MQ_F_NO_SCHED;
 	set->driver_data = NULL;
 
 	if ((nullb && nullb->dev->blocking) || g_blocking)
@@ -1985,8 +1991,10 @@ static int __init null_init(void)
 
 	for (i = 0; i < nr_devices; i++) {
 		dev = null_alloc_dev();
-		if (!dev)
+		if (!dev) {
+			ret = -ENOMEM;
 			goto err_dev;
+		}
 		ret = null_add_dev(dev);
 		if (ret) {
 			null_free_dev(dev);
diff --git a/drivers/block/paride/Kconfig b/drivers/block/paride/Kconfig
index 3a15247942e4..f8bd6ef3605a 100644
--- a/drivers/block/paride/Kconfig
+++ b/drivers/block/paride/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # PARIDE configuration
 #
@@ -25,6 +26,7 @@ config PARIDE_PD
 config PARIDE_PCD
 	tristate "Parallel port ATAPI CD-ROMs"
 	depends on PARIDE
+	select CDROM
 	select BLK_SCSI_REQUEST # only for the generic cdrom code
 	---help---
 	  This option enables the high-level driver for ATAPI CD-ROM devices
diff --git a/drivers/block/paride/Makefile b/drivers/block/paride/Makefile
index a539e004bb7a..cf1742a8475e 100644
--- a/drivers/block/paride/Makefile
+++ b/drivers/block/paride/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Parallel port IDE device drivers.
 #
diff --git a/drivers/block/paride/mkd b/drivers/block/paride/mkd
index 971f099b40aa..6d0d802479ea 100644
--- a/drivers/block/paride/mkd
+++ b/drivers/block/paride/mkd
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # mkd -- a script to create the device special files for the PARIDE subsystem
 #
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index b640ad8a6d20..adc877dfef5c 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2692,7 +2692,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request)
 	 * from the parent.
 	 */
 	page_count = (u32)calc_pages_for(0, length);
-	pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
+	pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
 	if (IS_ERR(pages)) {
 		result = PTR_ERR(pages);
 		pages = NULL;
@@ -2827,7 +2827,7 @@ static int rbd_img_obj_exists_submit(struct rbd_obj_request *obj_request)
 	 */
 	size = sizeof (__le64) + sizeof (__le32) + sizeof (__le32);
 	page_count = (u32)calc_pages_for(0, size);
-	pages = ceph_alloc_page_vector(page_count, GFP_KERNEL);
+	pages = ceph_alloc_page_vector(page_count, GFP_NOIO);
 	if (IS_ERR(pages)) {
 		ret = PTR_ERR(pages);
 		goto fail_stat_request;
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 7cedb4295e9d..2819f23e8bf2 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -1967,7 +1967,8 @@ static void skd_isr_msg_from_dev(struct skd_device *skdev)
 		break;
 
 	case FIT_MTD_CMD_LOG_HOST_ID:
-		skdev->connect_time_stamp = get_seconds();
+		/* hardware interface overflows in y2106 */
+		skdev->connect_time_stamp = (u32)ktime_get_real_seconds();
 		data = skdev->connect_time_stamp & 0xFFFF;
 		mtd = FIT_MXD_CONS(FIT_MTD_CMD_LOG_TIME_STAMP_LO, 0, data);
 		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
@@ -2604,7 +2605,7 @@ static void *skd_alloc_dma(struct skd_device *skdev, struct kmem_cache *s,
 		return NULL;
 	*dma_handle = dma_map_single(dev, buf, s->size, dir);
 	if (dma_mapping_error(dev, *dma_handle)) {
-		kfree(buf);
+		kmem_cache_free(s, buf);
 		buf = NULL;
 	}
 	return buf;
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 34e17ee799be..68846897d213 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -593,10 +593,22 @@ static int virtblk_map_queues(struct blk_mq_tag_set *set)
 	return blk_mq_virtio_map_queues(set, vblk->vdev, 0);
 }
 
+#ifdef CONFIG_VIRTIO_BLK_SCSI
+static void virtblk_initialize_rq(struct request *req)
+{
+	struct virtblk_req *vbr = blk_mq_rq_to_pdu(req);
+
+	scsi_req_init(&vbr->sreq);
+}
+#endif
+
 static const struct blk_mq_ops virtio_mq_ops = {
 	.queue_rq	= virtio_queue_rq,
 	.complete	= virtblk_request_done,
 	.init_request	= virtblk_init_request,
+#ifdef CONFIG_VIRTIO_BLK_SCSI
+	.initialize_rq_fn = virtblk_initialize_rq,
+#endif
 	.map_queues	= virtblk_map_queues,
 };
 
diff --git a/drivers/block/zram/Kconfig b/drivers/block/zram/Kconfig
index 7cd4a8ec3c8f..ac3a31d433b2 100644
--- a/drivers/block/zram/Kconfig
+++ b/drivers/block/zram/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config ZRAM
 	tristate "Compressed RAM block device support"
 	depends on BLOCK && SYSFS && ZSMALLOC && CRYPTO
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 2981c27d3aae..f149d3e61234 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -766,27 +766,6 @@ static void zram_slot_unlock(struct zram *zram, u32 index)
 	bit_spin_unlock(ZRAM_ACCESS, &zram->table[index].value);
 }
 
-static bool zram_same_page_read(struct zram *zram, u32 index,
-				struct page *page,
-				unsigned int offset, unsigned int len)
-{
-	zram_slot_lock(zram, index);
-	if (unlikely(!zram_get_handle(zram, index) ||
-			zram_test_flag(zram, index, ZRAM_SAME))) {
-		void *mem;
-
-		zram_slot_unlock(zram, index);
-		mem = kmap_atomic(page);
-		zram_fill_page(mem + offset, len,
-					zram_get_element(zram, index));
-		kunmap_atomic(mem);
-		return true;
-	}
-	zram_slot_unlock(zram, index);
-
-	return false;
-}
-
 static void zram_meta_free(struct zram *zram, u64 disksize)
 {
 	size_t num_pages = disksize >> PAGE_SHIFT;
@@ -884,11 +863,20 @@ static int __zram_bvec_read(struct zram *zram, struct page *page, u32 index,
 		zram_slot_unlock(zram, index);
 	}
 
-	if (zram_same_page_read(zram, index, page, 0, PAGE_SIZE))
-		return 0;
-
 	zram_slot_lock(zram, index);
 	handle = zram_get_handle(zram, index);
+	if (!handle || zram_test_flag(zram, index, ZRAM_SAME)) {
+		unsigned long value;
+		void *mem;
+
+		value = handle ? zram_get_element(zram, index) : 0;
+		mem = kmap_atomic(page);
+		zram_fill_page(mem, PAGE_SIZE, value);
+		kunmap_atomic(mem);
+		zram_slot_unlock(zram, index);
+		return 0;
+	}
+
 	size = zram_get_obj_size(zram, index);
 
 	src = zs_map_object(zram->mem_pool, handle, ZS_MM_RO);
diff --git a/drivers/bluetooth/Kconfig b/drivers/bluetooth/Kconfig
index fae5a74dc737..98a60db8e5d1 100644
--- a/drivers/bluetooth/Kconfig
+++ b/drivers/bluetooth/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 menu "Bluetooth device drivers"
 	depends on BT
diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index e693ca6eeed9..4e4e44d09796 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Bluetooth HCI device drivers.
 #
diff --git a/drivers/bus/Kconfig b/drivers/bus/Kconfig
index ae3d8f3444b9..3e66f4cc1a59 100644
--- a/drivers/bus/Kconfig
+++ b/drivers/bus/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Bus Devices
 #
diff --git a/drivers/bus/Makefile b/drivers/bus/Makefile
index cc6364bec054..3ae96cffabd5 100644
--- a/drivers/bus/Makefile
+++ b/drivers/bus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the bus drivers.
 #
diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index c7f396903184..70db4d5638a6 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -720,7 +720,7 @@ mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state *mbus)
 			if (mbus->hw_io_coherency)
 				w->mbus_attr |= ATTR_HW_COHERENCY;
 			w->base = base & DDR_BASE_CS_LOW_MASK;
-			w->size = (size | ~DDR_SIZE_MASK) + 1;
+			w->size = (u64)(size | ~DDR_SIZE_MASK) + 1;
 		}
 	}
 	mvebu_mbus_dram_info.num_cs = cs;
diff --git a/drivers/cdrom/Makefile b/drivers/cdrom/Makefile
index 8ffde4f8ab9a..0f3664b45f48 100644
--- a/drivers/cdrom/Makefile
+++ b/drivers/cdrom/Makefile
@@ -1,13 +1,3 @@
-# Makefile for the kernel cdrom device drivers.
-#
-# 30 Jan 1998, Michael Elizabeth Chastain, <mailto:mec@shout.net>
-# Rewritten to use lists instead of if-statements.
-
-# Each configuration option enables a list of files.
-
-obj-$(CONFIG_BLK_DEV_IDECD)	+=              cdrom.o
-obj-$(CONFIG_BLK_DEV_SR)	+=              cdrom.o
-obj-$(CONFIG_PARIDE_PCD)	+=		cdrom.o
-obj-$(CONFIG_CDROM_PKTCDVD)	+=		cdrom.o
-
-obj-$(CONFIG_GDROM)		+= gdrom.o      cdrom.o
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CDROM)	+= cdrom.o
+obj-$(CONFIG_GDROM)	+= gdrom.o
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 623714344600..c28dca0c613d 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Character device configuration
 #
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 53e33720818c..7dc3abe66464 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel character device drivers.
 #
diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index c528f96ee204..6231714ef3c8 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 menuconfig AGP
 	tristate "/dev/agpgart (AGP Support)"
 	depends on ALPHA || IA64 || PARISC || PPC || X86
diff --git a/drivers/char/agp/Makefile b/drivers/char/agp/Makefile
index 604489bcdbf9..4a786ffd9dee 100644
--- a/drivers/char/agp/Makefile
+++ b/drivers/char/agp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 agpgart-y := backend.o frontend.o generic.o isoch.o
 
 agpgart-$(CONFIG_COMPAT)	+= compat_ioctl.o
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index fda073dcd967..164bf651953f 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common Intel AGPGART and GTT definitions.
  */
diff --git a/drivers/char/agp/isoch.c b/drivers/char/agp/isoch.c
index c73385cc4b8a..fc8e1bc3347d 100644
--- a/drivers/char/agp/isoch.c
+++ b/drivers/char/agp/isoch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Setup routines for AGP 3.5 compliant bridges.
  */
diff --git a/drivers/char/applicom.h b/drivers/char/applicom.h
index 35530b3d9bd6..282e08f159d5 100644
--- a/drivers/char/applicom.h
+++ b/drivers/char/applicom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: applicom.h,v 1.2 1999/08/28 15:09:49 dwmw2 Exp $ */
 
 
diff --git a/drivers/char/ds1302.c b/drivers/char/ds1302.c
index c614a56e68cc..8e16ad5d6d89 100644
--- a/drivers/char/ds1302.c
+++ b/drivers/char/ds1302.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*!***************************************************************************
 *!
 *! FILE NAME  : ds1302.c
diff --git a/drivers/char/dtlk.c b/drivers/char/dtlk.c
index 58471394beb9..1a0385ed6417 100644
--- a/drivers/char/dtlk.c
+++ b/drivers/char/dtlk.c
@@ -84,7 +84,7 @@ static int dtlk_has_indexing;
 static unsigned int dtlk_portlist[] =
 {0x25e, 0x29e, 0x2de, 0x31e, 0x35e, 0x39e, 0};
 static wait_queue_head_t dtlk_process_list;
-static DEFINE_TIMER(dtlk_timer, dtlk_timer_tick, 0, 0);
+static DEFINE_TIMER(dtlk_timer, dtlk_timer_tick);
 
 /* prototypes for file_operations struct */
 static ssize_t dtlk_read(struct file *, char __user *,
diff --git a/drivers/char/hangcheck-timer.c b/drivers/char/hangcheck-timer.c
index 5406b90bf626..5b8db2ed844d 100644
--- a/drivers/char/hangcheck-timer.c
+++ b/drivers/char/hangcheck-timer.c
@@ -124,7 +124,7 @@ static unsigned long long hangcheck_tsc, hangcheck_tsc_margin;
 
 static void hangcheck_fire(unsigned long);
 
-static DEFINE_TIMER(hangcheck_ticktock, hangcheck_fire, 0, 0);
+static DEFINE_TIMER(hangcheck_ticktock, hangcheck_fire);
 
 static void hangcheck_fire(unsigned long data)
 {
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 95a031e9eced..f6e3e5abc117 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -100,12 +100,12 @@ config HW_RANDOM_BCM2835
 	  If unsure, say Y.
 
 config HW_RANDOM_IPROC_RNG200
-	tristate "Broadcom iProc RNG200 support"
-	depends on ARCH_BCM_IPROC
+	tristate "Broadcom iProc/STB RNG200 support"
+	depends on ARCH_BCM_IPROC || ARCH_BRCMSTB
 	default HW_RANDOM
 	---help---
 	  This driver provides kernel-side support for the RNG200
-	  hardware found on the Broadcom iProc SoCs.
+	  hardware found on the Broadcom iProc and STB SoCs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called iproc-rng200
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index 39a67defac67..f3728d008fff 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for HW Random Number Generator (RNG) device drivers.
 #
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 9701ac7d8b47..657b8770b6b9 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -292,26 +292,48 @@ static struct miscdevice rng_miscdev = {
 	.groups		= rng_dev_groups,
 };
 
+static int enable_best_rng(void)
+{
+	int ret = -ENODEV;
+
+	BUG_ON(!mutex_is_locked(&rng_mutex));
+
+	/* rng_list is sorted by quality, use the best (=first) one */
+	if (!list_empty(&rng_list)) {
+		struct hwrng *new_rng;
+
+		new_rng = list_entry(rng_list.next, struct hwrng, list);
+		ret = ((new_rng == current_rng) ? 0 : set_current_rng(new_rng));
+		if (!ret)
+			cur_rng_set_by_user = 0;
+	}
+
+	return ret;
+}
+
 static ssize_t hwrng_attr_current_store(struct device *dev,
 					struct device_attribute *attr,
 					const char *buf, size_t len)
 {
-	int err;
+	int err = -ENODEV;
 	struct hwrng *rng;
 
 	err = mutex_lock_interruptible(&rng_mutex);
 	if (err)
 		return -ERESTARTSYS;
-	err = -ENODEV;
-	list_for_each_entry(rng, &rng_list, list) {
-		if (sysfs_streq(rng->name, buf)) {
-			err = 0;
-			cur_rng_set_by_user = 1;
-			if (rng != current_rng)
+
+	if (sysfs_streq(buf, "")) {
+		err = enable_best_rng();
+	} else {
+		list_for_each_entry(rng, &rng_list, list) {
+			if (sysfs_streq(rng->name, buf)) {
+				cur_rng_set_by_user = 1;
 				err = set_current_rng(rng);
-			break;
+				break;
+			}
 		}
 	}
+
 	mutex_unlock(&rng_mutex);
 
 	return err ? : len;
@@ -423,7 +445,7 @@ static void start_khwrngd(void)
 {
 	hwrng_fill = kthread_run(hwrng_fillfn, NULL, "hwrng");
 	if (IS_ERR(hwrng_fill)) {
-		pr_err("hwrng_fill thread creation failed");
+		pr_err("hwrng_fill thread creation failed\n");
 		hwrng_fill = NULL;
 	}
 }
@@ -493,17 +515,8 @@ void hwrng_unregister(struct hwrng *rng)
 	mutex_lock(&rng_mutex);
 
 	list_del(&rng->list);
-	if (current_rng == rng) {
-		drop_current_rng();
-		cur_rng_set_by_user = 0;
-		/* rng_list is sorted by quality, use the best (=first) one */
-		if (!list_empty(&rng_list)) {
-			struct hwrng *new_rng;
-
-			new_rng = list_entry(rng_list.next, struct hwrng, list);
-			set_current_rng(new_rng);
-		}
-	}
+	if (current_rng == rng)
+		enable_best_rng();
 
 	if (list_empty(&rng_list)) {
 		mutex_unlock(&rng_mutex);
diff --git a/drivers/char/hw_random/iproc-rng200.c b/drivers/char/hw_random/iproc-rng200.c
index 3eaf7cb96d36..8b5a20b35293 100644
--- a/drivers/char/hw_random/iproc-rng200.c
+++ b/drivers/char/hw_random/iproc-rng200.c
@@ -220,6 +220,7 @@ static int iproc_rng200_probe(struct platform_device *pdev)
 }
 
 static const struct of_device_id iproc_rng200_of_match[] = {
+	{ .compatible = "brcm,bcm7278-rng200", },
 	{ .compatible = "brcm,iproc-rng200", },
 	{},
 };
diff --git a/drivers/char/hw_random/n2-asm.S b/drivers/char/hw_random/n2-asm.S
index 9b6eb5cd59f6..c205df43d5ae 100644
--- a/drivers/char/hw_random/n2-asm.S
+++ b/drivers/char/hw_random/n2-asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* n2-asm.S: Niagara2 RNG hypervisor call assembler.
  *
  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
diff --git a/drivers/char/hw_random/n2rng.h b/drivers/char/hw_random/n2rng.h
index 6bad6cc634e8..9a870f5dc371 100644
--- a/drivers/char/hw_random/n2rng.h
+++ b/drivers/char/hw_random/n2rng.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* n2rng.h: Niagara2 RNG defines.
  *
  * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
diff --git a/drivers/char/hw_random/pseries-rng.c b/drivers/char/hw_random/pseries-rng.c
index d9f46b437cc2..4e2a3f635277 100644
--- a/drivers/char/hw_random/pseries-rng.c
+++ b/drivers/char/hw_random/pseries-rng.c
@@ -72,7 +72,7 @@ static int pseries_rng_remove(struct vio_dev *dev)
 	return 0;
 }
 
-static struct vio_device_id pseries_rng_driver_ids[] = {
+static const struct vio_device_id pseries_rng_driver_ids[] = {
 	{ "ibm,random-v1", "ibm,random"},
 	{ "", "" }
 };
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index 03ff5483d865..f615684028af 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -53,13 +53,6 @@ static int timeriomem_rng_read(struct hwrng *hwrng, void *data,
 	int period_us = ktime_to_us(priv->period);
 
 	/*
-	 * The RNG provides 32-bits per read.  Ensure there is enough space for
-	 * at minimum one read.
-	 */
-	if (max < sizeof(u32))
-		return 0;
-
-	/*
 	 * There may not have been enough time for new data to be generated
 	 * since the last request.  If the caller doesn't want to wait, let them
 	 * bail out.  Otherwise, wait for the completion.  If the new data has
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index 3fa2f8a009b3..b89df66ea1ae 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -184,7 +184,26 @@ static int virtrng_freeze(struct virtio_device *vdev)
 
 static int virtrng_restore(struct virtio_device *vdev)
 {
-	return probe_common(vdev);
+	int err;
+
+	err = probe_common(vdev);
+	if (!err) {
+		struct virtrng_info *vi = vdev->priv;
+
+		/*
+		 * Set hwrng_removed to ensure that virtio_read()
+		 * does not block waiting for data before the
+		 * registration is complete.
+		 */
+		vi->hwrng_removed = true;
+		err = hwrng_register(&vi->hwrng);
+		if (!err) {
+			vi->hwrng_register_done = true;
+			vi->hwrng_removed = false;
+		}
+	}
+
+	return err;
 }
 #endif
 
diff --git a/drivers/char/hw_random/xgene-rng.c b/drivers/char/hw_random/xgene-rng.c
index 3c77645405e5..71755790c32b 100644
--- a/drivers/char/hw_random/xgene-rng.c
+++ b/drivers/char/hw_random/xgene-rng.c
@@ -100,9 +100,9 @@ struct xgene_rng_dev {
 	struct clk *clk;
 };
 
-static void xgene_rng_expired_timer(unsigned long arg)
+static void xgene_rng_expired_timer(struct timer_list *t)
 {
-	struct xgene_rng_dev *ctx = (struct xgene_rng_dev *) arg;
+	struct xgene_rng_dev *ctx = from_timer(ctx, t, failure_timer);
 
 	/* Clear failure counter as timer expired */
 	disable_irq(ctx->irq);
@@ -113,8 +113,6 @@ static void xgene_rng_expired_timer(unsigned long arg)
 
 static void xgene_rng_start_timer(struct xgene_rng_dev *ctx)
 {
-	ctx->failure_timer.data = (unsigned long) ctx;
-	ctx->failure_timer.function = xgene_rng_expired_timer;
 	ctx->failure_timer.expires = jiffies + 120 * HZ;
 	add_timer(&ctx->failure_timer);
 }
@@ -292,7 +290,7 @@ static int xgene_rng_init(struct hwrng *rng)
 	struct xgene_rng_dev *ctx = (struct xgene_rng_dev *) rng->priv;
 
 	ctx->failure_cnt = 0;
-	init_timer(&ctx->failure_timer);
+	timer_setup(&ctx->failure_timer, xgene_rng_expired_timer, 0);
 
 	ctx->revision = readl(ctx->csr_base + RNG_EIP_REV);
 
diff --git a/drivers/char/ipmi/Makefile b/drivers/char/ipmi/Makefile
index eefb0b301e83..43b7d86cc5f2 100644
--- a/drivers/char/ipmi/Makefile
+++ b/drivers/char/ipmi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ipmi drivers.
 #
diff --git a/drivers/char/ipmi/ipmi_dmi.c b/drivers/char/ipmi/ipmi_dmi.c
index 2a84401dea05..2059f79d669a 100644
--- a/drivers/char/ipmi/ipmi_dmi.c
+++ b/drivers/char/ipmi/ipmi_dmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * A hack to create a platform device from a DMI entry.  This will
  * allow autoloading of the IPMI drive based on SMBIOS entries.
diff --git a/drivers/char/ipmi/ipmi_dmi.h b/drivers/char/ipmi/ipmi_dmi.h
index 0a1afe5ceb1e..ea990a8e3b09 100644
--- a/drivers/char/ipmi/ipmi_dmi.h
+++ b/drivers/char/ipmi/ipmi_dmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * DMI defines for use by IPMI
  */
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 593a8818aca9..970e1242a282 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/drivers/char/mem.c
  *
diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index c9cd1ea6844a..1bb9e7cc82e3 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/drivers/char/misc.c
  *
diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index e6d0d271c58c..44006ed9558f 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -27,7 +27,7 @@ static void button_sequence_finished (unsigned long parameters);
 
 static int button_press_count;		/* The count of button presses */
 /* Times for the end of a sequence */
-static DEFINE_TIMER(button_timer, button_sequence_finished, 0, 0);
+static DEFINE_TIMER(button_timer, button_sequence_finished);
 static DECLARE_WAIT_QUEUE_HEAD(button_wait_queue); /* Used for blocking read */
 static char button_output_buffer[32];	/* Stores data to write out of device */
 static int bcount;			/* The number of bytes in the buffer */
diff --git a/drivers/char/nwbutton.h b/drivers/char/nwbutton.h
index c3ebc16ce8a7..abee3ca74801 100644
--- a/drivers/char/nwbutton.h
+++ b/drivers/char/nwbutton.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NWBUTTON_H
 #define __NWBUTTON_H
 
diff --git a/drivers/char/pcmcia/cm4040_cs.h b/drivers/char/pcmcia/cm4040_cs.h
index 9a8b805c5095..e2ffff995d51 100644
--- a/drivers/char/pcmcia/cm4040_cs.h
+++ b/drivers/char/pcmcia/cm4040_cs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	_CM4040_H_
 #define	_CM4040_H_
 
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 8ad92707e45f..6c7ccac2679e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -641,7 +641,7 @@ static void credit_entropy_bits(struct entropy_store *r, int nbits)
 		return;
 
 retry:
-	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
+	entropy_count = orig = READ_ONCE(r->entropy_count);
 	if (nfrac < 0) {
 		/* Debit */
 		entropy_count += nfrac;
@@ -1265,7 +1265,7 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 
 	/* Can we pull enough? */
 retry:
-	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
+	entropy_count = orig = READ_ONCE(r->entropy_count);
 	ibytes = nbytes;
 	/* never pull more than available */
 	have_bytes = entropy_count >> (ENTROPY_SHIFT + 3);
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 974d48927b07..616871e68e09 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -137,7 +137,7 @@ static DECLARE_WAIT_QUEUE_HEAD(rtc_wait);
 #ifdef RTC_IRQ
 static void rtc_dropped_irq(unsigned long data);
 
-static DEFINE_TIMER(rtc_irq_timer, rtc_dropped_irq, 0, 0);
+static DEFINE_TIMER(rtc_irq_timer, rtc_dropped_irq);
 #endif
 
 static ssize_t rtc_read(struct file *file, char __user *buf,
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index f4f866ee54bc..d3a979e25724 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -1491,7 +1491,7 @@ static struct platform_driver sonypi_driver = {
 
 static struct platform_device *sonypi_platform_device;
 
-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
+static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
 	{
 		.ident = "Sony Vaio",
 		.matches = {
diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index 6210bff46341..8eeb4190207d 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -184,9 +184,8 @@ static unsigned int telclk_interrupt;
 static int int_events;		/* Event that generate a interrupt */
 static int got_event;		/* if events processing have been done */
 
-static void switchover_timeout(unsigned long data);
-static struct timer_list switchover_timer =
-	TIMER_INITIALIZER(switchover_timeout , 0, 0);
+static void switchover_timeout(struct timer_list *t);
+static struct timer_list switchover_timer;
 static unsigned long tlclk_timer_data;
 
 static struct tlclk_alarms *alarm_events;
@@ -805,7 +804,7 @@ static int __init tlclk_init(void)
 		goto out3;
 	}
 
-	init_timer(&switchover_timer);
+	timer_setup(&switchover_timer, switchover_timeout, 0);
 
 	ret = misc_register(&tlclk_miscdev);
 	if (ret < 0) {
@@ -855,9 +854,9 @@ static void __exit tlclk_cleanup(void)
 
 }
 
-static void switchover_timeout(unsigned long data)
+static void switchover_timeout(struct timer_list *unused)
 {
-	unsigned long flags = *(unsigned long *) data;
+	unsigned long flags = tlclk_timer_data;
 
 	if ((flags & 1)) {
 		if ((inb(TLCLK_REG1) & 0x08) != (flags & 0x08))
@@ -922,7 +921,6 @@ static irqreturn_t tlclk_interrupt(int irq, void *dev_id)
 		/* TIMEOUT in ~10ms */
 		switchover_timer.expires = jiffies + msecs_to_jiffies(10);
 		tlclk_timer_data = inb(TLCLK_REG1);
-		switchover_timer.data = (unsigned long) &tlclk_timer_data;
 		mod_timer(&switchover_timer, switchover_timer.expires);
 	} else {
 		got_event = 1;
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index 23681f01f95a..34b4bcf46f43 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel tpm device drivers.
 #
diff --git a/drivers/char/tpm/st33zp24/Makefile b/drivers/char/tpm/st33zp24/Makefile
index 74a722e5e068..649e41107de9 100644
--- a/drivers/char/tpm/st33zp24/Makefile
+++ b/drivers/char/tpm/st33zp24/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ST33ZP24 TPM 1.2 driver
 #
diff --git a/drivers/char/tpm/tpm-dev-common.c b/drivers/char/tpm/tpm-dev-common.c
index 610638a80383..461bf0b8a094 100644
--- a/drivers/char/tpm/tpm-dev-common.c
+++ b/drivers/char/tpm/tpm-dev-common.c
@@ -110,6 +110,12 @@ ssize_t tpm_common_write(struct file *file, const char __user *buf,
 		return -EFAULT;
 	}
 
+	if (in_size < 6 ||
+	    in_size < be32_to_cpu(*((__be32 *) (priv->data_buffer + 2)))) {
+		mutex_unlock(&priv->buffer_mutex);
+		return -EINVAL;
+	}
+
 	/* atomic tpm command send and result receive. We only hold the ops
 	 * lock during this period so that the tpm can be unregistered even if
 	 * the char dev is held open.
diff --git a/drivers/char/tpm/tpm-dev.h b/drivers/char/tpm/tpm-dev.h
index ff15cf719bad..ba3b6f9dacf7 100644
--- a/drivers/char/tpm/tpm-dev.h
+++ b/drivers/char/tpm/tpm-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TPM_DEV_H
 #define _TPM_DEV_H
 
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
index fe597e6c55c4..1d6729be4cd6 100644
--- a/drivers/char/tpm/tpm-interface.c
+++ b/drivers/char/tpm/tpm-interface.c
@@ -455,7 +455,7 @@ ssize_t tpm_transmit(struct tpm_chip *chip, struct tpm_space *space,
 			goto out;
 		}
 
-		msleep(TPM_TIMEOUT);	/* CHECK */
+		tpm_msleep(TPM_TIMEOUT);
 		rmb();
 	} while (time_before(jiffies, stop));
 
@@ -970,7 +970,7 @@ int tpm_do_selftest(struct tpm_chip *chip)
 			dev_info(
 			    &chip->dev, HW_ERR
 			    "TPM command timed out during continue self test");
-			msleep(delay_msec);
+			tpm_msleep(delay_msec);
 			continue;
 		}
 
@@ -985,7 +985,7 @@ int tpm_do_selftest(struct tpm_chip *chip)
 		}
 		if (rc != TPM_WARN_DOING_SELFTEST)
 			return rc;
-		msleep(delay_msec);
+		tpm_msleep(delay_msec);
 	} while (--loops > 0);
 
 	return rc;
@@ -1085,7 +1085,7 @@ again:
 		}
 	} else {
 		do {
-			msleep(TPM_TIMEOUT);
+			tpm_msleep(TPM_TIMEOUT);
 			status = chip->ops->status(chip);
 			if ((status & mask) == mask)
 				return 0;
@@ -1150,7 +1150,7 @@ int tpm_pm_suspend(struct device *dev)
 		 */
 		if (rc != TPM_WARN_RETRY)
 			break;
-		msleep(TPM_TIMEOUT_RETRY);
+		tpm_msleep(TPM_TIMEOUT_RETRY);
 	}
 
 	if (rc)
diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c
index 86f38d239476..83a77a445538 100644
--- a/drivers/char/tpm/tpm-sysfs.c
+++ b/drivers/char/tpm/tpm-sysfs.c
@@ -20,44 +20,48 @@
 #include <linux/device.h>
 #include "tpm.h"
 
-#define READ_PUBEK_RESULT_SIZE 314
+struct tpm_readpubek_out {
+	u8 algorithm[4];
+	u8 encscheme[2];
+	u8 sigscheme[2];
+	__be32 paramsize;
+	u8 parameters[12];
+	__be32 keysize;
+	u8 modulus[256];
+	u8 checksum[20];
+} __packed;
+
 #define READ_PUBEK_RESULT_MIN_BODY_SIZE (28 + 256)
 #define TPM_ORD_READPUBEK 124
-static const struct tpm_input_header tpm_readpubek_header = {
-	.tag = cpu_to_be16(TPM_TAG_RQU_COMMAND),
-	.length = cpu_to_be32(30),
-	.ordinal = cpu_to_be32(TPM_ORD_READPUBEK)
-};
+
 static ssize_t pubek_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
 {
-	u8 *data;
-	struct tpm_cmd_t tpm_cmd;
-	ssize_t err;
-	int i, rc;
+	struct tpm_buf tpm_buf;
+	struct tpm_readpubek_out *out;
+	ssize_t rc;
+	int i;
 	char *str = buf;
 	struct tpm_chip *chip = to_tpm_chip(dev);
+	char anti_replay[20];
 
-	memset(&tpm_cmd, 0, sizeof(tpm_cmd));
-
-	tpm_cmd.header.in = tpm_readpubek_header;
-	err = tpm_transmit_cmd(chip, NULL, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
-			       READ_PUBEK_RESULT_MIN_BODY_SIZE, 0,
-			       "attempting to read the PUBEK");
-	if (err)
-		goto out;
-
-	/*
-	   ignore header 10 bytes
-	   algorithm 32 bits (1 == RSA )
-	   encscheme 16 bits
-	   sigscheme 16 bits
-	   parameters (RSA 12->bytes: keybit, #primes, expbit)
-	   keylenbytes 32 bits
-	   256 byte modulus
-	   ignore checksum 20 bytes
-	 */
-	data = tpm_cmd.params.readpubek_out_buffer;
+	memset(&anti_replay, 0, sizeof(anti_replay));
+
+	rc = tpm_buf_init(&tpm_buf, TPM_TAG_RQU_COMMAND, TPM_ORD_READPUBEK);
+	if (rc)
+		return rc;
+
+	tpm_buf_append(&tpm_buf, anti_replay, sizeof(anti_replay));
+
+	rc = tpm_transmit_cmd(chip, NULL, tpm_buf.data, PAGE_SIZE,
+			      READ_PUBEK_RESULT_MIN_BODY_SIZE, 0,
+			      "attempting to read the PUBEK");
+	if (rc) {
+		tpm_buf_destroy(&tpm_buf);
+		return 0;
+	}
+
+	out = (struct tpm_readpubek_out *)&tpm_buf.data[10];
 	str +=
 	    sprintf(str,
 		    "Algorithm: %02X %02X %02X %02X\n"
@@ -68,21 +72,26 @@ static ssize_t pubek_show(struct device *dev, struct device_attribute *attr,
 		    "%02X %02X %02X %02X\n"
 		    "Modulus length: %d\n"
 		    "Modulus:\n",
-		    data[0], data[1], data[2], data[3],
-		    data[4], data[5],
-		    data[6], data[7],
-		    data[12], data[13], data[14], data[15],
-		    data[16], data[17], data[18], data[19],
-		    data[20], data[21], data[22], data[23],
-		    be32_to_cpu(*((__be32 *) (data + 24))));
+		    out->algorithm[0], out->algorithm[1], out->algorithm[2],
+		    out->algorithm[3],
+		    out->encscheme[0], out->encscheme[1],
+		    out->sigscheme[0], out->sigscheme[1],
+		    out->parameters[0], out->parameters[1],
+		    out->parameters[2], out->parameters[3],
+		    out->parameters[4], out->parameters[5],
+		    out->parameters[6], out->parameters[7],
+		    out->parameters[8], out->parameters[9],
+		    out->parameters[10], out->parameters[11],
+		    be32_to_cpu(out->keysize));
 
 	for (i = 0; i < 256; i++) {
-		str += sprintf(str, "%02X ", data[i + 28]);
+		str += sprintf(str, "%02X ", out->modulus[i]);
 		if ((i + 1) % 16 == 0)
 			str += sprintf(str, "\n");
 	}
-out:
+
 	rc = str - buf;
+	tpm_buf_destroy(&tpm_buf);
 	return rc;
 }
 static DEVICE_ATTR_RO(pubek);
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 04fbff2edbf3..528cffbd49d3 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -50,7 +50,8 @@ enum tpm_const {
 
 enum tpm_timeout {
 	TPM_TIMEOUT = 5,	/* msecs */
-	TPM_TIMEOUT_RETRY = 100 /* msecs */
+	TPM_TIMEOUT_RETRY = 100, /* msecs */
+	TPM_TIMEOUT_RANGE_US = 300	/* usecs */
 };
 
 /* TPM addresses */
@@ -344,17 +345,6 @@ enum tpm_sub_capabilities {
 	TPM_CAP_PROP_TIS_DURATION = 0x120,
 };
 
-struct	tpm_readpubek_params_out {
-	u8	algorithm[4];
-	u8	encscheme[2];
-	u8	sigscheme[2];
-	__be32	paramsize;
-	u8	parameters[12]; /*assuming RSA*/
-	__be32	keysize;
-	u8	modulus[256];
-	u8	checksum[20];
-} __packed;
-
 typedef union {
 	struct	tpm_input_header in;
 	struct	tpm_output_header out;
@@ -384,8 +374,6 @@ struct tpm_getrandom_in {
 } __packed;
 
 typedef union {
-	struct	tpm_readpubek_params_out readpubek_out;
-	u8	readpubek_out_buffer[sizeof(struct tpm_readpubek_params_out)];
 	struct	tpm_pcrread_in	pcrread_in;
 	struct	tpm_pcrread_out	pcrread_out;
 	struct	tpm_getrandom_in getrandom_in;
@@ -527,6 +515,12 @@ int tpm_pm_resume(struct device *dev);
 int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
 		      wait_queue_head_t *queue, bool check_cancel);
 
+static inline void tpm_msleep(unsigned int delay_msec)
+{
+	usleep_range(delay_msec * 1000,
+		     (delay_msec * 1000) + TPM_TIMEOUT_RANGE_US);
+};
+
 struct tpm_chip *tpm_chip_find_get(int chip_num);
 __must_check int tpm_try_get_ops(struct tpm_chip *chip);
 void tpm_put_ops(struct tpm_chip *chip);
@@ -550,7 +544,7 @@ static inline void tpm_add_ppi(struct tpm_chip *chip)
 }
 #endif
 
-static inline inline u32 tpm2_rc_value(u32 rc)
+static inline u32 tpm2_rc_value(u32 rc)
 {
 	return (rc & BIT(7)) ? rc & 0xff : rc;
 }
diff --git a/drivers/char/tpm/tpm2-cmd.c b/drivers/char/tpm/tpm2-cmd.c
index f7f34b2aa981..f40d20671a78 100644
--- a/drivers/char/tpm/tpm2-cmd.c
+++ b/drivers/char/tpm/tpm2-cmd.c
@@ -834,72 +834,43 @@ static const struct tpm_input_header tpm2_selftest_header = {
 };
 
 /**
- * tpm2_continue_selftest() - start a self test
- *
- * @chip: TPM chip to use
- * @full: test all commands instead of testing only those that were not
- *        previously tested.
- *
- * Return: Same as with tpm_transmit_cmd with exception of RC_TESTING.
- */
-static int tpm2_start_selftest(struct tpm_chip *chip, bool full)
-{
-	int rc;
-	struct tpm2_cmd cmd;
-
-	cmd.header.in = tpm2_selftest_header;
-	cmd.params.selftest_in.full_test = full;
-
-	rc = tpm_transmit_cmd(chip, NULL, &cmd, TPM2_SELF_TEST_IN_SIZE, 0, 0,
-			      "continue selftest");
-
-	/* At least some prototype chips seem to give RC_TESTING error
-	 * immediately. This is a workaround for that.
-	 */
-	if (rc == TPM2_RC_TESTING) {
-		dev_warn(&chip->dev, "Got RC_TESTING, ignoring\n");
-		rc = 0;
-	}
-
-	return rc;
-}
-
-/**
- * tpm2_do_selftest() - run a full self test
+ * tpm2_do_selftest() - ensure that all self tests have passed
  *
  * @chip: TPM chip to use
  *
  * Return: Same as with tpm_transmit_cmd.
  *
- * During the self test TPM2 commands return with the error code RC_TESTING.
- * Waiting is done by issuing PCR read until it executes successfully.
+ * The TPM can either run all self tests synchronously and then return
+ * RC_SUCCESS once all tests were successful. Or it can choose to run the tests
+ * asynchronously and return RC_TESTING immediately while the self tests still
+ * execute in the background. This function handles both cases and waits until
+ * all tests have completed.
  */
 static int tpm2_do_selftest(struct tpm_chip *chip)
 {
 	int rc;
-	unsigned int loops;
-	unsigned int delay_msec = 100;
-	unsigned long duration;
-	int i;
-
-	duration = tpm2_calc_ordinal_duration(chip, TPM2_CC_SELF_TEST);
+	unsigned int delay_msec = 20;
+	long duration;
+	struct tpm2_cmd cmd;
 
-	loops = jiffies_to_msecs(duration) / delay_msec;
+	duration = jiffies_to_msecs(
+		tpm2_calc_ordinal_duration(chip, TPM2_CC_SELF_TEST));
 
-	rc = tpm2_start_selftest(chip, true);
-	if (rc)
-		return rc;
+	while (duration > 0) {
+		cmd.header.in = tpm2_selftest_header;
+		cmd.params.selftest_in.full_test = 0;
 
-	for (i = 0; i < loops; i++) {
-		/* Attempt to read a PCR value */
-		rc = tpm2_pcr_read(chip, 0, NULL);
-		if (rc < 0)
-			break;
+		rc = tpm_transmit_cmd(chip, NULL, &cmd, TPM2_SELF_TEST_IN_SIZE,
+				      0, 0, "continue selftest");
 
 		if (rc != TPM2_RC_TESTING)
 			break;
 
-		msleep(delay_msec);
+		tpm_msleep(delay_msec);
+		duration -= delay_msec;
+
+		/* wait longer the next round */
+		delay_msec *= 2;
 	}
 
 	return rc;
@@ -1009,7 +980,7 @@ static int tpm2_get_cc_attrs_tbl(struct tpm_chip *chip)
 {
 	struct tpm_buf buf;
 	u32 nr_commands;
-	u32 *attrs;
+	__be32 *attrs;
 	u32 cc;
 	int i;
 	int rc;
@@ -1049,7 +1020,7 @@ static int tpm2_get_cc_attrs_tbl(struct tpm_chip *chip)
 
 	chip->nr_commands = nr_commands;
 
-	attrs = (u32 *)&buf.data[TPM_HEADER_SIZE + 9];
+	attrs = (__be32 *)&buf.data[TPM_HEADER_SIZE + 9];
 	for (i = 0; i < nr_commands; i++, attrs++) {
 		chip->cc_attrs_tbl[i] = be32_to_cpup(attrs);
 		cc = chip->cc_attrs_tbl[i] & 0xFFFF;
diff --git a/drivers/char/tpm/tpm2-space.c b/drivers/char/tpm/tpm2-space.c
index e2e059d8ffec..4e4014eabdb9 100644
--- a/drivers/char/tpm/tpm2-space.c
+++ b/drivers/char/tpm/tpm2-space.c
@@ -242,7 +242,7 @@ static int tpm2_map_command(struct tpm_chip *chip, u32 cc, u8 *cmd)
 	struct tpm_space *space = &chip->work_space;
 	unsigned int nr_handles;
 	u32 attrs;
-	u32 *handle;
+	__be32 *handle;
 	int i;
 
 	i = tpm2_find_cc(chip, cc);
@@ -252,7 +252,7 @@ static int tpm2_map_command(struct tpm_chip *chip, u32 cc, u8 *cmd)
 	attrs = chip->cc_attrs_tbl[i];
 	nr_handles = (attrs >> TPM2_CC_ATTR_CHANDLES) & GENMASK(2, 0);
 
-	handle = (u32 *)&cmd[TPM_HEADER_SIZE];
+	handle = (__be32 *)&cmd[TPM_HEADER_SIZE];
 	for (i = 0; i < nr_handles; i++, handle++) {
 		if ((be32_to_cpu(*handle) & 0xFF000000) == TPM2_HT_TRANSIENT) {
 			if (!tpm2_map_to_phandle(space, handle))
diff --git a/drivers/char/tpm/tpm_crb.c b/drivers/char/tpm/tpm_crb.c
index a4ac63a21d8a..7b3c2a8aa9de 100644
--- a/drivers/char/tpm/tpm_crb.c
+++ b/drivers/char/tpm/tpm_crb.c
@@ -92,14 +92,9 @@ enum crb_status {
 	CRB_DRV_STS_COMPLETE	= BIT(0),
 };
 
-enum crb_flags {
-	CRB_FL_ACPI_START	= BIT(0),
-	CRB_FL_CRB_START	= BIT(1),
-	CRB_FL_CRB_SMC_START	= BIT(2),
-};
-
 struct crb_priv {
-	unsigned int flags;
+	u32 sm;
+	const char *hid;
 	void __iomem *iobase;
 	struct crb_regs_head __iomem *regs_h;
 	struct crb_regs_tail __iomem *regs_t;
@@ -128,14 +123,16 @@ struct tpm2_crb_smc {
  * Anyhow, we do not wait here as a consequent CMD_READY request
  * will be handled correctly even if idle was not completed.
  *
- * The function does nothing for devices with ACPI-start method.
+ * The function does nothing for devices with ACPI-start method
+ * or SMC-start method.
  *
  * Return: 0 always
  */
 static int __maybe_unused crb_go_idle(struct device *dev, struct crb_priv *priv)
 {
-	if ((priv->flags & CRB_FL_ACPI_START) ||
-	    (priv->flags & CRB_FL_CRB_SMC_START))
+	if ((priv->sm == ACPI_TPM2_START_METHOD) ||
+	    (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD) ||
+	    (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC))
 		return 0;
 
 	iowrite32(CRB_CTRL_REQ_GO_IDLE, &priv->regs_t->ctrl_req);
@@ -174,14 +171,16 @@ static bool crb_wait_for_reg_32(u32 __iomem *reg, u32 mask, u32 value,
  * The device should respond within TIMEOUT_C.
  *
  * The function does nothing for devices with ACPI-start method
+ * or SMC-start method.
  *
  * Return: 0 on success -ETIME on timeout;
  */
 static int __maybe_unused crb_cmd_ready(struct device *dev,
 					struct crb_priv *priv)
 {
-	if ((priv->flags & CRB_FL_ACPI_START) ||
-	    (priv->flags & CRB_FL_CRB_SMC_START))
+	if ((priv->sm == ACPI_TPM2_START_METHOD) ||
+	    (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD) ||
+	    (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC))
 		return 0;
 
 	iowrite32(CRB_CTRL_REQ_CMD_READY, &priv->regs_t->ctrl_req);
@@ -325,13 +324,20 @@ static int crb_send(struct tpm_chip *chip, u8 *buf, size_t len)
 	/* Make sure that cmd is populated before issuing start. */
 	wmb();
 
-	if (priv->flags & CRB_FL_CRB_START)
+	/* The reason for the extra quirk is that the PTT in 4th Gen Core CPUs
+	 * report only ACPI start but in practice seems to require both
+	 * CRB start, hence invoking CRB start method if hid == MSFT0101.
+	 */
+	if ((priv->sm == ACPI_TPM2_COMMAND_BUFFER) ||
+	    (priv->sm == ACPI_TPM2_MEMORY_MAPPED) ||
+	    (!strcmp(priv->hid, "MSFT0101")))
 		iowrite32(CRB_START_INVOKE, &priv->regs_t->ctrl_start);
 
-	if (priv->flags & CRB_FL_ACPI_START)
+	if ((priv->sm == ACPI_TPM2_START_METHOD) ||
+	    (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD))
 		rc = crb_do_acpi_start(chip);
 
-	if (priv->flags & CRB_FL_CRB_SMC_START) {
+	if (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC) {
 		iowrite32(CRB_START_INVOKE, &priv->regs_t->ctrl_start);
 		rc = tpm_crb_smc_start(&chip->dev, priv->smc_func_id);
 	}
@@ -345,7 +351,9 @@ static void crb_cancel(struct tpm_chip *chip)
 
 	iowrite32(CRB_CANCEL_INVOKE, &priv->regs_t->ctrl_cancel);
 
-	if ((priv->flags & CRB_FL_ACPI_START) && crb_do_acpi_start(chip))
+	if (((priv->sm == ACPI_TPM2_START_METHOD) ||
+	    (priv->sm == ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD)) &&
+	     crb_do_acpi_start(chip))
 		dev_err(&chip->dev, "ACPI Start failed\n");
 }
 
@@ -458,7 +466,8 @@ static int crb_map_io(struct acpi_device *device, struct crb_priv *priv,
 	 * the control area, as one nice sane region except for some older
 	 * stuff that puts the control area outside the ACPI IO region.
 	 */
-	if (!(priv->flags & CRB_FL_ACPI_START)) {
+	if ((priv->sm == ACPI_TPM2_COMMAND_BUFFER) ||
+	    (priv->sm == ACPI_TPM2_MEMORY_MAPPED)) {
 		if (buf->control_address == io_res.start +
 		    sizeof(*priv->regs_h))
 			priv->regs_h = priv->iobase;
@@ -552,18 +561,6 @@ static int crb_acpi_add(struct acpi_device *device)
 	if (!priv)
 		return -ENOMEM;
 
-	/* The reason for the extra quirk is that the PTT in 4th Gen Core CPUs
-	 * report only ACPI start but in practice seems to require both
-	 * ACPI start and CRB start.
-	 */
-	if (sm == ACPI_TPM2_COMMAND_BUFFER || sm == ACPI_TPM2_MEMORY_MAPPED ||
-	    !strcmp(acpi_device_hid(device), "MSFT0101"))
-		priv->flags |= CRB_FL_CRB_START;
-
-	if (sm == ACPI_TPM2_START_METHOD ||
-	    sm == ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD)
-		priv->flags |= CRB_FL_ACPI_START;
-
 	if (sm == ACPI_TPM2_COMMAND_BUFFER_WITH_ARM_SMC) {
 		if (buf->header.length < (sizeof(*buf) + sizeof(*crb_smc))) {
 			dev_err(dev,
@@ -574,9 +571,11 @@ static int crb_acpi_add(struct acpi_device *device)
 		}
 		crb_smc = ACPI_ADD_PTR(struct tpm2_crb_smc, buf, sizeof(*buf));
 		priv->smc_func_id = crb_smc->smc_func_id;
-		priv->flags |= CRB_FL_CRB_SMC_START;
 	}
 
+	priv->sm = sm;
+	priv->hid = acpi_device_hid(device);
+
 	rc = crb_map_io(device, priv, buf);
 	if (rc)
 		return rc;
@@ -665,7 +664,7 @@ static const struct dev_pm_ops crb_pm = {
 	SET_RUNTIME_PM_OPS(crb_pm_runtime_suspend, crb_pm_runtime_resume, NULL)
 };
 
-static struct acpi_device_id crb_device_ids[] = {
+static const struct acpi_device_id crb_device_ids[] = {
 	{"MSFT0101", 0},
 	{"", 0},
 };
diff --git a/drivers/char/tpm/tpm_eventlog.h b/drivers/char/tpm/tpm_eventlog.h
index b4b549559203..204466cc4d05 100644
--- a/drivers/char/tpm/tpm_eventlog.h
+++ b/drivers/char/tpm/tpm_eventlog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __TPM_EVENTLOG_H__
 #define __TPM_EVENTLOG_H__
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index f01d083eced2..25f6e2665385 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -32,26 +32,70 @@
 
 static const char tpm_ibmvtpm_driver_name[] = "tpm_ibmvtpm";
 
-static struct vio_device_id tpm_ibmvtpm_device_table[] = {
+static const struct vio_device_id tpm_ibmvtpm_device_table[] = {
 	{ "IBM,vtpm", "IBM,vtpm"},
 	{ "", "" }
 };
 MODULE_DEVICE_TABLE(vio, tpm_ibmvtpm_device_table);
 
 /**
+ *
+ * ibmvtpm_send_crq_word - Send a CRQ request
+ * @vdev:	vio device struct
+ * @w1:		pre-constructed first word of tpm crq (second word is reserved)
+ *
+ * Return:
+ *	0 - Success
+ *	Non-zero - Failure
+ */
+static int ibmvtpm_send_crq_word(struct vio_dev *vdev, u64 w1)
+{
+	return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, w1, 0);
+}
+
+/**
+ *
  * ibmvtpm_send_crq - Send a CRQ request
  *
  * @vdev:	vio device struct
- * @w1:		first word
- * @w2:		second word
+ * @valid:	Valid field
+ * @msg:	Type field
+ * @len:	Length field
+ * @data:	Data field
+ *
+ * The ibmvtpm crq is defined as follows:
+ *
+ * Byte  |   0   |   1   |   2   |   3   |   4   |   5   |   6   |   7
+ * -----------------------------------------------------------------------
+ * Word0 | Valid | Type  |     Length    |              Data
+ * -----------------------------------------------------------------------
+ * Word1 |                Reserved
+ * -----------------------------------------------------------------------
+ *
+ * Which matches the following structure (on bigendian host):
+ *
+ * struct ibmvtpm_crq {
+ *         u8 valid;
+ *         u8 msg;
+ *         __be16 len;
+ *         __be32 data;
+ *         __be64 reserved;
+ * } __attribute__((packed, aligned(8)));
+ *
+ * However, the value is passed in a register so just compute the numeric value
+ * to load into the register avoiding byteswap altogether. Endian only affects
+ * memory loads and stores - registers are internally represented the same.
  *
  * Return:
- *	0 -Sucess
+ *	0 (H_SUCCESS) - Success
  *	Non-zero - Failure
  */
-static int ibmvtpm_send_crq(struct vio_dev *vdev, u64 w1, u64 w2)
+static int ibmvtpm_send_crq(struct vio_dev *vdev,
+		u8 valid, u8 msg, u16 len, u32 data)
 {
-	return plpar_hcall_norets(H_SEND_CRQ, vdev->unit_address, w1, w2);
+	u64 w1 = ((u64)valid << 56) | ((u64)msg << 48) | ((u64)len << 32) |
+		(u64)data;
+	return ibmvtpm_send_crq_word(vdev, w1);
 }
 
 /**
@@ -109,8 +153,6 @@ static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
 {
 	struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
-	struct ibmvtpm_crq crq;
-	__be64 *word = (__be64 *)&crq;
 	int rc, sig;
 
 	if (!ibmvtpm->rtce_buf) {
@@ -137,10 +179,6 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
 	spin_lock(&ibmvtpm->rtce_lock);
 	ibmvtpm->res_len = 0;
 	memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count);
-	crq.valid = (u8)IBMVTPM_VALID_CMD;
-	crq.msg = (u8)VTPM_TPM_COMMAND;
-	crq.len = cpu_to_be16(count);
-	crq.data = cpu_to_be32(ibmvtpm->rtce_dma_handle);
 
 	/*
 	 * set the processing flag before the Hcall, since we may get the
@@ -148,8 +186,9 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
 	 */
 	ibmvtpm->tpm_processing_cmd = true;
 
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, be64_to_cpu(word[0]),
-			      be64_to_cpu(word[1]));
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev,
+			IBMVTPM_VALID_CMD, VTPM_TPM_COMMAND,
+			count, ibmvtpm->rtce_dma_handle);
 	if (rc != H_SUCCESS) {
 		dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc);
 		rc = 0;
@@ -182,15 +221,10 @@ static u8 tpm_ibmvtpm_status(struct tpm_chip *chip)
  */
 static int ibmvtpm_crq_get_rtce_size(struct ibmvtpm_dev *ibmvtpm)
 {
-	struct ibmvtpm_crq crq;
-	u64 *buf = (u64 *) &crq;
 	int rc;
 
-	crq.valid = (u8)IBMVTPM_VALID_CMD;
-	crq.msg = (u8)VTPM_GET_RTCE_BUFFER_SIZE;
-
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, cpu_to_be64(buf[0]),
-			      cpu_to_be64(buf[1]));
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev,
+			IBMVTPM_VALID_CMD, VTPM_GET_RTCE_BUFFER_SIZE, 0, 0);
 	if (rc != H_SUCCESS)
 		dev_err(ibmvtpm->dev,
 			"ibmvtpm_crq_get_rtce_size failed rc=%d\n", rc);
@@ -210,15 +244,10 @@ static int ibmvtpm_crq_get_rtce_size(struct ibmvtpm_dev *ibmvtpm)
  */
 static int ibmvtpm_crq_get_version(struct ibmvtpm_dev *ibmvtpm)
 {
-	struct ibmvtpm_crq crq;
-	u64 *buf = (u64 *) &crq;
 	int rc;
 
-	crq.valid = (u8)IBMVTPM_VALID_CMD;
-	crq.msg = (u8)VTPM_GET_VERSION;
-
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, cpu_to_be64(buf[0]),
-			      cpu_to_be64(buf[1]));
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev,
+			IBMVTPM_VALID_CMD, VTPM_GET_VERSION, 0, 0);
 	if (rc != H_SUCCESS)
 		dev_err(ibmvtpm->dev,
 			"ibmvtpm_crq_get_version failed rc=%d\n", rc);
@@ -238,7 +267,7 @@ static int ibmvtpm_crq_send_init_complete(struct ibmvtpm_dev *ibmvtpm)
 {
 	int rc;
 
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, INIT_CRQ_COMP_CMD, 0);
+	rc = ibmvtpm_send_crq_word(ibmvtpm->vdev, INIT_CRQ_COMP_CMD);
 	if (rc != H_SUCCESS)
 		dev_err(ibmvtpm->dev,
 			"ibmvtpm_crq_send_init_complete failed rc=%d\n", rc);
@@ -258,7 +287,7 @@ static int ibmvtpm_crq_send_init(struct ibmvtpm_dev *ibmvtpm)
 {
 	int rc;
 
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, INIT_CRQ_CMD, 0);
+	rc = ibmvtpm_send_crq_word(ibmvtpm->vdev, INIT_CRQ_CMD);
 	if (rc != H_SUCCESS)
 		dev_err(ibmvtpm->dev,
 			"ibmvtpm_crq_send_init failed rc=%d\n", rc);
@@ -340,15 +369,10 @@ static int tpm_ibmvtpm_suspend(struct device *dev)
 {
 	struct tpm_chip *chip = dev_get_drvdata(dev);
 	struct ibmvtpm_dev *ibmvtpm = dev_get_drvdata(&chip->dev);
-	struct ibmvtpm_crq crq;
-	u64 *buf = (u64 *) &crq;
 	int rc = 0;
 
-	crq.valid = (u8)IBMVTPM_VALID_CMD;
-	crq.msg = (u8)VTPM_PREPARE_TO_SUSPEND;
-
-	rc = ibmvtpm_send_crq(ibmvtpm->vdev, cpu_to_be64(buf[0]),
-			      cpu_to_be64(buf[1]));
+	rc = ibmvtpm_send_crq(ibmvtpm->vdev,
+			IBMVTPM_VALID_CMD, VTPM_PREPARE_TO_SUSPEND, 0, 0);
 	if (rc != H_SUCCESS)
 		dev_err(ibmvtpm->dev,
 			"tpm_ibmvtpm_suspend failed rc=%d\n", rc);
diff --git a/drivers/char/tpm/tpm_infineon.c b/drivers/char/tpm/tpm_infineon.c
index 3b1b9f9322d5..d8f10047fbba 100644
--- a/drivers/char/tpm/tpm_infineon.c
+++ b/drivers/char/tpm/tpm_infineon.c
@@ -191,7 +191,7 @@ static int wait(struct tpm_chip *chip, int wait_for_bit)
 		/* check the status-register if wait_for_bit is set */
 		if (status & 1 << wait_for_bit)
 			break;
-		msleep(TPM_MSLEEP_TIME);
+		tpm_msleep(TPM_MSLEEP_TIME);
 	}
 	if (i == TPM_MAX_TRIES) {	/* timeout occurs */
 		if (wait_for_bit == STAT_XFE)
@@ -226,7 +226,7 @@ static void tpm_wtx(struct tpm_chip *chip)
 	wait_and_send(chip, TPM_CTRL_WTX);
 	wait_and_send(chip, 0x00);
 	wait_and_send(chip, 0x00);
-	msleep(TPM_WTX_MSLEEP_TIME);
+	tpm_msleep(TPM_WTX_MSLEEP_TIME);
 }
 
 static void tpm_wtx_abort(struct tpm_chip *chip)
@@ -237,7 +237,7 @@ static void tpm_wtx_abort(struct tpm_chip *chip)
 	wait_and_send(chip, 0x00);
 	wait_and_send(chip, 0x00);
 	number_of_wtx = 0;
-	msleep(TPM_WTX_MSLEEP_TIME);
+	tpm_msleep(TPM_WTX_MSLEEP_TIME);
 }
 
 static int tpm_inf_recv(struct tpm_chip *chip, u8 * buf, size_t count)
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 7e55aa9ce680..e2d1055fb814 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -30,6 +30,7 @@
 #include <linux/freezer.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/kernel.h>
 #include "tpm.h"
 #include "tpm_tis_core.h"
 
@@ -223,7 +224,7 @@ static int tpm_tcg_read_bytes(struct tpm_tis_data *data, u32 addr, u16 len,
 }
 
 static int tpm_tcg_write_bytes(struct tpm_tis_data *data, u32 addr, u16 len,
-			       u8 *value)
+			       const u8 *value)
 {
 	struct tpm_tis_tcg_phy *phy = to_tpm_tis_tcg_phy(data);
 
@@ -365,7 +366,7 @@ static struct pnp_driver tis_pnp_driver = {
 	},
 };
 
-#define TIS_HID_USR_IDX sizeof(tpm_pnp_tbl)/sizeof(struct pnp_device_id) -2
+#define TIS_HID_USR_IDX (ARRAY_SIZE(tpm_pnp_tbl) - 2)
 module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
 		    sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444);
 MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
index b617b2eeb080..fdde971bc810 100644
--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -51,7 +51,7 @@ static int wait_startup(struct tpm_chip *chip, int l)
 
 		if (access & TPM_ACCESS_VALID)
 			return 0;
-		msleep(TPM_TIMEOUT);
+		tpm_msleep(TPM_TIMEOUT);
 	} while (time_before(jiffies, stop));
 	return -1;
 }
@@ -117,7 +117,7 @@ again:
 		do {
 			if (check_locality(chip, l))
 				return l;
-			msleep(TPM_TIMEOUT);
+			tpm_msleep(TPM_TIMEOUT);
 		} while (time_before(jiffies, stop));
 	}
 	return -1;
@@ -164,7 +164,7 @@ static int get_burstcount(struct tpm_chip *chip)
 		burstcnt = (value >> 8) & 0xFFFF;
 		if (burstcnt)
 			return burstcnt;
-		msleep(TPM_TIMEOUT);
+		tpm_msleep(TPM_TIMEOUT);
 	} while (time_before(jiffies, stop));
 	return -EBUSY;
 }
@@ -252,7 +252,7 @@ out:
  * tpm.c can skip polling for the data to be available as the interrupt is
  * waited for here
  */
-static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
+static int tpm_tis_send_data(struct tpm_chip *chip, const u8 *buf, size_t len)
 {
 	struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
 	int rc, status, burstcnt;
@@ -343,7 +343,7 @@ static void disable_interrupts(struct tpm_chip *chip)
  * tpm.c can skip polling for the data to be available as the interrupt is
  * waited for here
  */
-static int tpm_tis_send_main(struct tpm_chip *chip, u8 *buf, size_t len)
+static int tpm_tis_send_main(struct tpm_chip *chip, const u8 *buf, size_t len)
 {
 	struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
 	int rc;
@@ -396,7 +396,7 @@ static int tpm_tis_send(struct tpm_chip *chip, u8 *buf, size_t len)
 	priv->irq = irq;
 	chip->flags |= TPM_CHIP_FLAG_IRQ;
 	if (!priv->irq_tested)
-		msleep(1);
+		tpm_msleep(1);
 	if (!priv->irq_tested)
 		disable_interrupts(chip);
 	priv->irq_tested = true;
@@ -445,7 +445,7 @@ static int probe_itpm(struct tpm_chip *chip)
 {
 	struct tpm_tis_data *priv = dev_get_drvdata(&chip->dev);
 	int rc = 0;
-	u8 cmd_getticks[] = {
+	static const u8 cmd_getticks[] = {
 		0x00, 0xc1, 0x00, 0x00, 0x00, 0x0a,
 		0x00, 0x00, 0x00, 0xf1
 	};
diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index e2212f021a02..6bbac319ff3b 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -98,7 +98,7 @@ struct tpm_tis_phy_ops {
 	int (*read_bytes)(struct tpm_tis_data *data, u32 addr, u16 len,
 			  u8 *result);
 	int (*write_bytes)(struct tpm_tis_data *data, u32 addr, u16 len,
-			   u8 *value);
+			   const u8 *value);
 	int (*read16)(struct tpm_tis_data *data, u32 addr, u16 *result);
 	int (*read32)(struct tpm_tis_data *data, u32 addr, u32 *result);
 	int (*write32)(struct tpm_tis_data *data, u32 addr, u32 src);
@@ -128,7 +128,7 @@ static inline int tpm_tis_read32(struct tpm_tis_data *data, u32 addr,
 }
 
 static inline int tpm_tis_write_bytes(struct tpm_tis_data *data, u32 addr,
-				      u16 len, u8 *value)
+				      u16 len, const u8 *value)
 {
 	return data->phy_ops->write_bytes(data, addr, len, value);
 }
diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c
index 88fe72ae967f..424ff2fde1f2 100644
--- a/drivers/char/tpm/tpm_tis_spi.c
+++ b/drivers/char/tpm/tpm_tis_spi.c
@@ -46,9 +46,7 @@
 struct tpm_tis_spi_phy {
 	struct tpm_tis_data priv;
 	struct spi_device *spi_device;
-
-	u8 tx_buf[4];
-	u8 rx_buf[4];
+	u8 *iobuf;
 };
 
 static inline struct tpm_tis_spi_phy *to_tpm_tis_spi_phy(struct tpm_tis_data *data)
@@ -57,7 +55,7 @@ static inline struct tpm_tis_spi_phy *to_tpm_tis_spi_phy(struct tpm_tis_data *da
 }
 
 static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
-				u8 *buffer, u8 direction)
+				u8 *in, const u8 *out)
 {
 	struct tpm_tis_spi_phy *phy = to_tpm_tis_spi_phy(data);
 	int ret = 0;
@@ -71,14 +69,14 @@ static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
 	while (len) {
 		transfer_len = min_t(u16, len, MAX_SPI_FRAMESIZE);
 
-		phy->tx_buf[0] = direction | (transfer_len - 1);
-		phy->tx_buf[1] = 0xd4;
-		phy->tx_buf[2] = addr >> 8;
-		phy->tx_buf[3] = addr;
+		phy->iobuf[0] = (in ? 0x80 : 0) | (transfer_len - 1);
+		phy->iobuf[1] = 0xd4;
+		phy->iobuf[2] = addr >> 8;
+		phy->iobuf[3] = addr;
 
 		memset(&spi_xfer, 0, sizeof(spi_xfer));
-		spi_xfer.tx_buf = phy->tx_buf;
-		spi_xfer.rx_buf = phy->rx_buf;
+		spi_xfer.tx_buf = phy->iobuf;
+		spi_xfer.rx_buf = phy->iobuf;
 		spi_xfer.len = 4;
 		spi_xfer.cs_change = 1;
 
@@ -88,9 +86,9 @@ static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
 		if (ret < 0)
 			goto exit;
 
-		if ((phy->rx_buf[3] & 0x01) == 0) {
+		if ((phy->iobuf[3] & 0x01) == 0) {
 			// handle SPI wait states
-			phy->tx_buf[0] = 0;
+			phy->iobuf[0] = 0;
 
 			for (i = 0; i < TPM_RETRY; i++) {
 				spi_xfer.len = 1;
@@ -99,7 +97,7 @@ static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
 				ret = spi_sync_locked(phy->spi_device, &m);
 				if (ret < 0)
 					goto exit;
-				if (phy->rx_buf[0] & 0x01)
+				if (phy->iobuf[0] & 0x01)
 					break;
 			}
 
@@ -113,12 +111,12 @@ static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
 		spi_xfer.len = transfer_len;
 		spi_xfer.delay_usecs = 5;
 
-		if (direction) {
+		if (in) {
 			spi_xfer.tx_buf = NULL;
-			spi_xfer.rx_buf = buffer;
-		} else {
-			spi_xfer.tx_buf = buffer;
+		} else if (out) {
 			spi_xfer.rx_buf = NULL;
+			memcpy(phy->iobuf, out, transfer_len);
+			out += transfer_len;
 		}
 
 		spi_message_init(&m);
@@ -127,8 +125,12 @@ static int tpm_tis_spi_transfer(struct tpm_tis_data *data, u32 addr, u16 len,
 		if (ret < 0)
 			goto exit;
 
+		if (in) {
+			memcpy(in, phy->iobuf, transfer_len);
+			in += transfer_len;
+		}
+
 		len -= transfer_len;
-		buffer += transfer_len;
 	}
 
 exit:
@@ -139,40 +141,51 @@ exit:
 static int tpm_tis_spi_read_bytes(struct tpm_tis_data *data, u32 addr,
 				  u16 len, u8 *result)
 {
-	return tpm_tis_spi_transfer(data, addr, len, result, 0x80);
+	return tpm_tis_spi_transfer(data, addr, len, result, NULL);
 }
 
 static int tpm_tis_spi_write_bytes(struct tpm_tis_data *data, u32 addr,
-				   u16 len, u8 *value)
+				   u16 len, const u8 *value)
 {
-	return tpm_tis_spi_transfer(data, addr, len, value, 0);
+	return tpm_tis_spi_transfer(data, addr, len, NULL, value);
 }
 
 static int tpm_tis_spi_read16(struct tpm_tis_data *data, u32 addr, u16 *result)
 {
+	__le16 result_le;
 	int rc;
 
-	rc = data->phy_ops->read_bytes(data, addr, sizeof(u16), (u8 *)result);
+	rc = data->phy_ops->read_bytes(data, addr, sizeof(u16),
+				       (u8 *)&result_le);
 	if (!rc)
-		*result = le16_to_cpu(*result);
+		*result = le16_to_cpu(result_le);
+
 	return rc;
 }
 
 static int tpm_tis_spi_read32(struct tpm_tis_data *data, u32 addr, u32 *result)
 {
+	__le32 result_le;
 	int rc;
 
-	rc = data->phy_ops->read_bytes(data, addr, sizeof(u32), (u8 *)result);
+	rc = data->phy_ops->read_bytes(data, addr, sizeof(u32),
+				       (u8 *)&result_le);
 	if (!rc)
-		*result = le32_to_cpu(*result);
+		*result = le32_to_cpu(result_le);
+
 	return rc;
 }
 
 static int tpm_tis_spi_write32(struct tpm_tis_data *data, u32 addr, u32 value)
 {
-	value = cpu_to_le32(value);
-	return data->phy_ops->write_bytes(data, addr, sizeof(u32),
-					   (u8 *)&value);
+	__le32 value_le;
+	int rc;
+
+	value_le = cpu_to_le32(value);
+	rc = data->phy_ops->write_bytes(data, addr, sizeof(u32),
+					(u8 *)&value_le);
+
+	return rc;
 }
 
 static const struct tpm_tis_phy_ops tpm_spi_phy_ops = {
@@ -194,6 +207,10 @@ static int tpm_tis_spi_probe(struct spi_device *dev)
 
 	phy->spi_device = dev;
 
+	phy->iobuf = devm_kmalloc(&dev->dev, MAX_SPI_FRAMESIZE, GFP_KERNEL);
+	if (!phy->iobuf)
+		return -ENOMEM;
+
 	return tpm_tis_core_init(&dev->dev, &phy->priv, -1, &tpm_spi_phy_ops,
 				 NULL);
 }
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index c99f363826f0..f7f761b02bed 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # common clock types
 obj-$(CONFIG_HAVE_CLK)		+= clk-devres.o clk-bulk.o
 obj-$(CONFIG_CLKDEV_LOOKUP)	+= clkdev.o
diff --git a/drivers/clk/at91/Makefile b/drivers/clk/at91/Makefile
index c68947b65a4c..082596f37c1d 100644
--- a/drivers/clk/at91/Makefile
+++ b/drivers/clk/at91/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for at91 specific clk
 #
diff --git a/drivers/clk/bcm/Makefile b/drivers/clk/bcm/Makefile
index a0c14fa4aa1e..e3f0cb0d90f3 100644
--- a/drivers/clk/bcm/Makefile
+++ b/drivers/clk/bcm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CLK_BCM_63XX)	+= clk-bcm63xx.o
 obj-$(CONFIG_CLK_BCM_KONA)	+= clk-kona.o
 obj-$(CONFIG_CLK_BCM_KONA)	+= clk-kona-setup.o
diff --git a/drivers/clk/clk-bulk.c b/drivers/clk/clk-bulk.c
index c834f5abfc49..4c10456f8a32 100644
--- a/drivers/clk/clk-bulk.c
+++ b/drivers/clk/clk-bulk.c
@@ -105,6 +105,7 @@ err:
 
 	return  ret;
 }
+EXPORT_SYMBOL_GPL(clk_bulk_prepare);
 
 #endif /* CONFIG_HAVE_CLK_PREPARE */
 
diff --git a/drivers/clk/clk-gemini.c b/drivers/clk/clk-gemini.c
index f940e5af845b..5e66e6c0205e 100644
--- a/drivers/clk/clk-gemini.c
+++ b/drivers/clk/clk-gemini.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Cortina Gemini SoC Clock Controller driver
  * Copyright (c) 2017 Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/clk/clk-tango4.c b/drivers/clk/clk-tango4.c
index eef75e305a59..34b22b7930fb 100644
--- a/drivers/clk/clk-tango4.c
+++ b/drivers/clk/clk-tango4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/clk-provider.h>
 #include <linux/of_address.h>
diff --git a/drivers/clk/h8300/clk-div.c b/drivers/clk/h8300/clk-div.c
index 715b882205a8..4ae624425e9d 100644
--- a/drivers/clk/h8300/clk-div.c
+++ b/drivers/clk/h8300/clk-div.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * H8/300 divide clock driver
  *
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
index a26312460621..fc24b0b55a3d 100644
--- a/drivers/clk/h8300/clk-h8s2678.c
+++ b/drivers/clk/h8300/clk-h8s2678.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * H8S2678 clock driver
  *
diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile
index 1e4c3ddbad84..0e55612112af 100644
--- a/drivers/clk/hisilicon/Makefile
+++ b/drivers/clk/hisilicon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Hisilicon Clock specific Makefile
 #
diff --git a/drivers/clk/imgtec/clk-boston.c b/drivers/clk/imgtec/clk-boston.c
index f18f10351785..15af423cc0c9 100644
--- a/drivers/clk/imgtec/clk-boston.c
+++ b/drivers/clk/imgtec/clk-boston.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016-2017 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile
index 1ada68abb158..f91f2b2e11cd 100644
--- a/drivers/clk/imx/Makefile
+++ b/drivers/clk/imx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-y += \
 	clk.o \
diff --git a/drivers/clk/imx/clk-imx27.c b/drivers/clk/imx/clk-imx27.c
index cf5cf75a4848..0a0ab95d16fe 100644
--- a/drivers/clk/imx/clk-imx27.c
+++ b/drivers/clk/imx/clk-imx27.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
diff --git a/drivers/clk/imx/clk-pllv1.c b/drivers/clk/imx/clk-pllv1.c
index 82fe3662b5f6..e47a1c2fe8bd 100644
--- a/drivers/clk/imx/clk-pllv1.c
+++ b/drivers/clk/imx/clk-pllv1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/clk-provider.h>
 #include <linux/io.h>
 #include <linux/slab.h>
diff --git a/drivers/clk/imx/clk-pllv2.c b/drivers/clk/imx/clk-pllv2.c
index 4aeda56ce372..9842d657e974 100644
--- a/drivers/clk/imx/clk-pllv2.c
+++ b/drivers/clk/imx/clk-pllv2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/clk.h>
 #include <linux/io.h>
diff --git a/drivers/clk/imx/clk.c b/drivers/clk/imx/clk.c
index a634b1185be3..9074e6974b6d 100644
--- a/drivers/clk/imx/clk.c
+++ b/drivers/clk/imx/clk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/of.h>
diff --git a/drivers/clk/imx/clk.h b/drivers/clk/imx/clk.h
index d54f0720afba..d69c4bbf3597 100644
--- a/drivers/clk/imx/clk.h
+++ b/drivers/clk/imx/clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_IMX_CLK_H
 #define __MACH_IMX_CLK_H
 
diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c
index e8248f9185f7..ab393637f7b0 100644
--- a/drivers/clk/ingenic/cgu.c
+++ b/drivers/clk/ingenic/cgu.c
@@ -2,7 +2,7 @@
  * Ingenic SoC CGU driver
  *
  * Copyright (c) 2013-2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/drivers/clk/ingenic/cgu.h b/drivers/clk/ingenic/cgu.h
index 09700b2c555d..e78b586536ea 100644
--- a/drivers/clk/ingenic/cgu.h
+++ b/drivers/clk/ingenic/cgu.h
@@ -2,7 +2,7 @@
  * Ingenic SoC CGU driver
  *
  * Copyright (c) 2013-2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/drivers/clk/ingenic/jz4740-cgu.c b/drivers/clk/ingenic/jz4740-cgu.c
index 510fe7e0c8f1..32fcc75f6f77 100644
--- a/drivers/clk/ingenic/jz4740-cgu.c
+++ b/drivers/clk/ingenic/jz4740-cgu.c
@@ -2,7 +2,7 @@
  * Ingenic JZ4740 SoC CGU driver
  *
  * Copyright (c) 2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/drivers/clk/ingenic/jz4780-cgu.c b/drivers/clk/ingenic/jz4780-cgu.c
index b35d6d9dd5aa..ac3585ed8228 100644
--- a/drivers/clk/ingenic/jz4780-cgu.c
+++ b/drivers/clk/ingenic/jz4780-cgu.c
@@ -2,7 +2,7 @@
  * Ingenic JZ4780 SoC CGU driver
  *
  * Copyright (c) 2013-2015 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
diff --git a/drivers/clk/mediatek/Makefile b/drivers/clk/mediatek/Makefile
index 2a755b5fb51b..ba2a070765f0 100644
--- a/drivers/clk/mediatek/Makefile
+++ b/drivers/clk/mediatek/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_COMMON_CLK_MEDIATEK) += clk-mtk.o clk-pll.o clk-gate.o clk-apmixed.o clk-cpumux.o
 obj-$(CONFIG_RESET_CONTROLLER) += reset.o
 obj-$(CONFIG_COMMON_CLK_MT6797) += clk-mt6797.o
diff --git a/drivers/clk/mmp/Makefile b/drivers/clk/mmp/Makefile
index 9d4bc41e4239..7bc7ac69391e 100644
--- a/drivers/clk/mmp/Makefile
+++ b/drivers/clk/mmp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for mmp specific clk
 #
diff --git a/drivers/clk/mmp/clk.c b/drivers/clk/mmp/clk.c
index 089927e4cda2..ad8d483a35cd 100644
--- a/drivers/clk/mmp/clk.c
+++ b/drivers/clk/mmp/clk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/io.h>
 #include <linux/clk-provider.h>
 #include <linux/slab.h>
diff --git a/drivers/clk/mmp/clk.h b/drivers/clk/mmp/clk.h
index adf9b711b037..70bb73257647 100644
--- a/drivers/clk/mmp/clk.h
+++ b/drivers/clk/mmp/clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MMP_CLK_H
 #define __MACH_MMP_CLK_H
 
diff --git a/drivers/clk/mmp/reset.c b/drivers/clk/mmp/reset.c
index b4e4d6aa2631..ded7e391c737 100644
--- a/drivers/clk/mmp/reset.c
+++ b/drivers/clk/mmp/reset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/io.h>
 #include <linux/of.h>
diff --git a/drivers/clk/mmp/reset.h b/drivers/clk/mmp/reset.h
index be8b1a7000f7..3d0470ca3fd9 100644
--- a/drivers/clk/mmp/reset.h
+++ b/drivers/clk/mmp/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MMP_CLK_RESET_H
 #define __MACH_MMP_CLK_RESET_H
 
diff --git a/drivers/clk/mvebu/Makefile b/drivers/clk/mvebu/Makefile
index d71c7fd5da16..93ac3685271f 100644
--- a/drivers/clk/mvebu/Makefile
+++ b/drivers/clk/mvebu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MVEBU_CLK_COMMON)	+= common.o
 obj-$(CONFIG_MVEBU_CLK_CPU) 	+= clk-cpu.o
 obj-$(CONFIG_MVEBU_CLK_COREDIV)	+= clk-corediv.o
diff --git a/drivers/clk/mvebu/dove-divider.c b/drivers/clk/mvebu/dove-divider.c
index 4091f3cfee19..7e35c891e168 100644
--- a/drivers/clk/mvebu/dove-divider.c
+++ b/drivers/clk/mvebu/dove-divider.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Dove PMU Core PLL divider driver
  *
diff --git a/drivers/clk/mvebu/dove-divider.h b/drivers/clk/mvebu/dove-divider.h
index 4f2f718deb8e..38ea373088ca 100644
--- a/drivers/clk/mvebu/dove-divider.h
+++ b/drivers/clk/mvebu/dove-divider.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DOVE_DIVIDER_H
 #define DOVE_DIVIDER_H
 
diff --git a/drivers/clk/qcom/Makefile b/drivers/clk/qcom/Makefile
index 3f3aff229fb7..26410d31446b 100644
--- a/drivers/clk/qcom/Makefile
+++ b/drivers/clk/qcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_COMMON_CLK_QCOM) += clk-qcom.o
 
 clk-qcom-y += common.o
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 9bda3ec5b199..cbbb081e2145 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # SoC
 obj-$(CONFIG_CLK_EMEV2)			+= clk-emev2.o
 obj-$(CONFIG_CLK_RZA1)			+= clk-rz.o
diff --git a/drivers/clk/renesas/clk-div6.h b/drivers/clk/renesas/clk-div6.h
index 567b31d2bfa5..065dfb49adf6 100644
--- a/drivers/clk/renesas/clk-div6.h
+++ b/drivers/clk/renesas/clk-div6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RENESAS_CLK_DIV6_H__
 #define __RENESAS_CLK_DIV6_H__
 
diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile
index 6f19826cc447..59b8d320960a 100644
--- a/drivers/clk/rockchip/Makefile
+++ b/drivers/clk/rockchip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Rockchip Clock specific Makefile
 #
diff --git a/drivers/clk/rockchip/clk-rk3128.c b/drivers/clk/rockchip/clk-rk3128.c
index 62d7854e4b87..5970a50671b9 100644
--- a/drivers/clk/rockchip/clk-rk3128.c
+++ b/drivers/clk/rockchip/clk-rk3128.c
@@ -315,13 +315,13 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 			RK2928_CLKGATE_CON(10), 8, GFLAGS),
 
 	GATE(SCLK_PVTM_CORE, "clk_pvtm_core", "xin24m", 0,
-			RK2928_CLKGATE_CON(10), 8, GFLAGS),
+			RK2928_CLKGATE_CON(10), 0, GFLAGS),
 	GATE(SCLK_PVTM_GPU, "clk_pvtm_gpu", "xin24m", 0,
-			RK2928_CLKGATE_CON(10), 8, GFLAGS),
+			RK2928_CLKGATE_CON(10), 1, GFLAGS),
 	GATE(SCLK_PVTM_FUNC, "clk_pvtm_func", "xin24m", 0,
-			RK2928_CLKGATE_CON(10), 8, GFLAGS),
+			RK2928_CLKGATE_CON(10), 2, GFLAGS),
 	GATE(SCLK_MIPI_24M, "clk_mipi_24m", "xin24m", CLK_IGNORE_UNUSED,
-			RK2928_CLKGATE_CON(10), 8, GFLAGS),
+			RK2928_CLKGATE_CON(2), 15, GFLAGS),
 
 	COMPOSITE(SCLK_SDMMC, "sclk_sdmmc0", mux_mmc_src_p, 0,
 			RK2928_CLKSEL_CON(11), 6, 2, MFLAGS, 0, 6, DFLAGS,
@@ -541,7 +541,7 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = {
 	GATE(0, "pclk_grf", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 4, GFLAGS),
 	GATE(0, "pclk_mipiphy", "pclk_cpu", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(5), 0, GFLAGS),
 
-	GATE(0, "pclk_pmu", "pclk_pmu_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 2, GFLAGS),
+	GATE(0, "pclk_pmu", "pclk_pmu_pre", 0, RK2928_CLKGATE_CON(9), 2, GFLAGS),
 	GATE(0, "pclk_pmu_niu", "pclk_pmu_pre", CLK_IGNORE_UNUSED, RK2928_CLKGATE_CON(9), 3, GFLAGS),
 
 	/* PD_MMC */
@@ -577,6 +577,8 @@ static const char *const rk3128_critical_clocks[] __initconst = {
 	"aclk_peri",
 	"hclk_peri",
 	"pclk_peri",
+	"pclk_pmu",
+	"sclk_timer5",
 };
 
 static struct rockchip_clk_provider *__init rk3128_common_clk_init(struct device_node *np)
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 7afc21dc374e..23835001e8bd 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Samsung Clock specific Makefile
 #
diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c
index e40b77583c47..d8d3cb67b402 100644
--- a/drivers/clk/samsung/clk-exynos4.c
+++ b/drivers/clk/samsung/clk-exynos4.c
@@ -294,6 +294,18 @@ static const struct samsung_clk_reg_dump src_mask_suspend_e4210[] = {
 #define PLL_ENABLED	(1 << 31)
 #define PLL_LOCKED	(1 << 29)
 
+static void exynos4_clk_enable_pll(u32 reg)
+{
+	u32 pll_con = readl(reg_base + reg);
+	pll_con |= PLL_ENABLED;
+	writel(pll_con, reg_base + reg);
+
+	while (!(pll_con & PLL_LOCKED)) {
+		cpu_relax();
+		pll_con = readl(reg_base + reg);
+	}
+}
+
 static void exynos4_clk_wait_for_pll(u32 reg)
 {
 	u32 pll_con;
@@ -315,6 +327,9 @@ static int exynos4_clk_suspend(void)
 	samsung_clk_save(reg_base, exynos4_save_pll,
 				ARRAY_SIZE(exynos4_clk_pll_regs));
 
+	exynos4_clk_enable_pll(EPLL_CON0);
+	exynos4_clk_enable_pll(VPLL_CON0);
+
 	if (exynos4_soc == EXYNOS4210) {
 		samsung_clk_save(reg_base, exynos4_save_soc,
 					ARRAY_SIZE(exynos4210_clk_save));
diff --git a/drivers/clk/sirf/atlas6.h b/drivers/clk/sirf/atlas6.h
index 376217f3bf8f..cb871e30a175 100644
--- a/drivers/clk/sirf/atlas6.h
+++ b/drivers/clk/sirf/atlas6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define SIRFSOC_CLKC_CLK_EN0    0x0000
 #define SIRFSOC_CLKC_CLK_EN1    0x0004
 #define SIRFSOC_CLKC_REF_CFG    0x0020
diff --git a/drivers/clk/sirf/prima2.h b/drivers/clk/sirf/prima2.h
index 01bc3854a058..2fb56941795d 100644
--- a/drivers/clk/sirf/prima2.h
+++ b/drivers/clk/sirf/prima2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define SIRFSOC_CLKC_CLK_EN0    0x0000
 #define SIRFSOC_CLKC_CLK_EN1    0x0004
 #define SIRFSOC_CLKC_REF_CFG    0x0014
diff --git a/drivers/clk/socfpga/Makefile b/drivers/clk/socfpga/Makefile
index d8bb239753a4..9146c20fe21f 100644
--- a/drivers/clk/socfpga/Makefile
+++ b/drivers/clk/socfpga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += clk.o
 obj-y += clk-gate.o
 obj-y += clk-pll.o
diff --git a/drivers/clk/spear/Makefile b/drivers/clk/spear/Makefile
index cdb425d3b8ee..d7e75d2d42df 100644
--- a/drivers/clk/spear/Makefile
+++ b/drivers/clk/spear/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # SPEAr Clock specific Makefile
 #
diff --git a/drivers/clk/st/clkgen.h b/drivers/clk/st/clkgen.h
index f7ec2d9139d6..44302fc7ca96 100644
--- a/drivers/clk/st/clkgen.h
+++ b/drivers/clk/st/clkgen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /************************************************************************
 File  : Clock H/w specific Information
 
diff --git a/drivers/clk/sunxi-ng/Makefile b/drivers/clk/sunxi-ng/Makefile
index 85a0633c1eac..d1c2fa93ddd9 100644
--- a/drivers/clk/sunxi-ng/Makefile
+++ b/drivers/clk/sunxi-ng/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Common objects
 lib-$(CONFIG_SUNXI_CCU)		+= ccu_common.o
 lib-$(CONFIG_SUNXI_CCU)		+= ccu_mmc_timing.o
diff --git a/drivers/clk/sunxi-ng/ccu_mult.h b/drivers/clk/sunxi-ng/ccu_mult.h
index f9c37b987d72..6b30b0c10807 100644
--- a/drivers/clk/sunxi-ng/ccu_mult.h
+++ b/drivers/clk/sunxi-ng/ccu_mult.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CCU_MULT_H_
 #define _CCU_MULT_H_
 
diff --git a/drivers/clk/sunxi-ng/ccu_mux.h b/drivers/clk/sunxi-ng/ccu_mux.h
index f20c0bd62a47..f165395effb5 100644
--- a/drivers/clk/sunxi-ng/ccu_mux.h
+++ b/drivers/clk/sunxi-ng/ccu_mux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CCU_MUX_H_
 #define _CCU_MUX_H_
 
diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile
index 39d2044a1f49..be88368b48a1 100644
--- a/drivers/clk/sunxi/Makefile
+++ b/drivers/clk/sunxi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for sunxi specific clk
 #
diff --git a/drivers/clk/sunxi/clk-factors.h b/drivers/clk/sunxi/clk-factors.h
index 1e63c5b2d5f4..824f746b2567 100644
--- a/drivers/clk/sunxi/clk-factors.h
+++ b/drivers/clk/sunxi/clk-factors.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SUNXI_CLK_FACTORS_H
 #define __MACH_SUNXI_CLK_FACTORS_H
 
diff --git a/drivers/clk/sunxi/clk-sun9i-cpus.c b/drivers/clk/sunxi/clk-sun9i-cpus.c
index 7626d2194b96..4d5e14142e15 100644
--- a/drivers/clk/sunxi/clk-sun9i-cpus.c
+++ b/drivers/clk/sunxi/clk-sun9i-cpus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2015 Chen-Yu Tsai
  *
diff --git a/drivers/clk/tegra/Makefile b/drivers/clk/tegra/Makefile
index 4be8af28ee61..b71692391bd6 100644
--- a/drivers/clk/tegra/Makefile
+++ b/drivers/clk/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y					+= clk.o
 obj-y					+= clk-audio-sync.o
 obj-y					+= clk-dfll.o
diff --git a/drivers/clk/tegra/clk-id.h b/drivers/clk/tegra/clk-id.h
index 689f344377a7..11ee5f9ce99e 100644
--- a/drivers/clk/tegra/clk-id.h
+++ b/drivers/clk/tegra/clk-id.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides IDs for clocks common between several Tegra SoCs
  */
diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile
index edb9f471e525..a2293ee09440 100644
--- a/drivers/clk/ti/Makefile
+++ b/drivers/clk/ti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifeq ($(CONFIG_ARCH_OMAP2PLUS), y)
 
 obj-y					+= clk.o autoidle.o clockdomain.o
diff --git a/drivers/clk/uniphier/Makefile b/drivers/clk/uniphier/Makefile
index 665d1d65a90e..e5715abef180 100644
--- a/drivers/clk/uniphier/Makefile
+++ b/drivers/clk/uniphier/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y	+= clk-uniphier-core.o
 
 obj-y	+= clk-uniphier-cpugear.o
diff --git a/drivers/clk/uniphier/clk-uniphier-sys.c b/drivers/clk/uniphier/clk-uniphier-sys.c
index 0e396f3da526..07f3b91a7daf 100644
--- a/drivers/clk/uniphier/clk-uniphier-sys.c
+++ b/drivers/clk/uniphier/clk-uniphier-sys.c
@@ -233,9 +233,9 @@ const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[] = {
 	UNIPHIER_LD20_SYS_CLK_SD,
 	UNIPHIER_LD11_SYS_CLK_NAND(2),
 	UNIPHIER_LD11_SYS_CLK_EMMC(4),
-	UNIPHIER_CLK_GATE("usb30", 12, NULL, 0x2104, 4),	/* =GIO0 */
-	UNIPHIER_CLK_GATE("usb31-0", 13, NULL, 0x2104, 5),	/* =GIO1 */
-	UNIPHIER_CLK_GATE("usb31-1", 14, NULL, 0x2104, 6),	/* =GIO1-1 */
+	UNIPHIER_CLK_GATE("usb30", 12, NULL, 0x210c, 4),	/* =GIO0 */
+	UNIPHIER_CLK_GATE("usb31-0", 13, NULL, 0x210c, 5),	/* =GIO1 */
+	UNIPHIER_CLK_GATE("usb31-1", 14, NULL, 0x210c, 6),	/* =GIO1-1 */
 	UNIPHIER_CLK_GATE("usb30-phy0", 16, NULL, 0x210c, 16),
 	UNIPHIER_CLK_GATE("usb30-phy1", 17, NULL, 0x210c, 18),
 	UNIPHIER_CLK_GATE("usb30-phy2", 18, NULL, 0x210c, 20),
diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile
index f3baef29859c..fedc083dc8be 100644
--- a/drivers/clk/ux500/Makefile
+++ b/drivers/clk/ux500/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ux500 clocks
 #
diff --git a/drivers/clk/versatile/clk-icst.h b/drivers/clk/versatile/clk-icst.h
index 5add02ebec5d..e36ca1a20e90 100644
--- a/drivers/clk/versatile/clk-icst.h
+++ b/drivers/clk/versatile/clk-icst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * struct clk_icst_desc - descriptor for the ICST VCO
  * @params: ICST parameters
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index cc6062049170..c729a88007d0 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -1,9 +1,8 @@
 menu "Clock Source drivers"
-	depends on !ARCH_USES_GETTIMEOFFSET
+	depends on GENERIC_CLOCKEVENTS
 
 config TIMER_OF
 	bool
-	depends on GENERIC_CLOCKEVENTS
 	select TIMER_PROBE
 
 config TIMER_ACPI
@@ -30,21 +29,18 @@ config CLKSRC_MMIO
 
 config BCM2835_TIMER
 	bool "BCM2835 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables the support for the BCM2835 timer driver.
 
 config BCM_KONA_TIMER
 	bool "BCM mobile timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables the support for the BCM Kona mobile timer driver.
 
 config DIGICOLOR_TIMER
 	bool "Digicolor timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	depends on HAS_IOMEM
 	help
@@ -52,7 +48,6 @@ config DIGICOLOR_TIMER
 
 config DW_APB_TIMER
 	bool "DW APB timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	help
 	  Enables the support for the dw_apb timer.
 
@@ -63,7 +58,6 @@ config DW_APB_TIMER_OF
 
 config FTTMR010_TIMER
 	bool "Faraday Technology timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	select CLKSRC_MMIO
 	select TIMER_OF
@@ -90,7 +84,6 @@ config ARMADA_370_XP_TIMER
 
 config MESON6_TIMER
 	bool "Meson6 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables the support for the Meson6 timer driver.
@@ -105,14 +98,12 @@ config ORION_TIMER
 
 config OWL_TIMER
 	bool "Owl timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables the support for the Actions Semi Owl timer driver.
 
 config SUN4I_TIMER
 	bool "Sun4i timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	select CLKSRC_MMIO
 	select TIMER_OF
@@ -135,7 +126,6 @@ config TEGRA_TIMER
 
 config VT8500_TIMER
 	bool "VT8500 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	help
 	  Enables support for the VT8500 driver.
@@ -148,7 +138,6 @@ config CADENCE_TTC_TIMER
 
 config ASM9260_TIMER
 	bool "ASM9260 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	select TIMER_OF
 	help
@@ -171,28 +160,24 @@ config CLKSRC_NOMADIK_MTU_SCHED_CLOCK
 
 config CLKSRC_DBX500_PRCMU
 	bool "Clocksource PRCMU Timer" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	help
 	  Use the always on PRCMU Timer as clocksource
 
 config CLPS711X_TIMER
 	bool "Cirrus logic timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables support for the Cirrus Logic PS711 timer.
 
 config ATLAS7_TIMER
 	bool "Atlas7 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables support for the Atlas7 timer.
 
 config MXS_TIMER
 	bool "Mxs timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	select STMP_DEVICE
 	help
@@ -200,14 +185,12 @@ config MXS_TIMER
 
 config PRIMA2_TIMER
 	bool "Prima2 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables support for the Prima2 timer.
 
 config U300_TIMER
 	bool "U300 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on ARM
 	select CLKSRC_MMIO
 	help
@@ -215,14 +198,12 @@ config U300_TIMER
 
 config NSPIRE_TIMER
 	bool "NSpire timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables support for the Nspire timer.
 
 config KEYSTONE_TIMER
 	bool "Keystone timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on ARM || ARM64
 	select CLKSRC_MMIO
 	help
@@ -230,7 +211,6 @@ config KEYSTONE_TIMER
 
 config INTEGRATOR_AP_TIMER
 	bool "Integrator-ap timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables support for the Integrator-ap timer.
@@ -253,7 +233,7 @@ config CLKSRC_EFM32
 
 config CLKSRC_LPC32XX
 	bool "Clocksource for LPC32XX" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+	depends on HAS_IOMEM
 	depends on ARM
 	select CLKSRC_MMIO
 	select TIMER_OF
@@ -262,7 +242,7 @@ config CLKSRC_LPC32XX
 
 config CLKSRC_PISTACHIO
 	bool "Clocksource for Pistachio SoC" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+	depends on HAS_IOMEM
 	select TIMER_OF
 	help
 	  Enables the clocksource for the Pistachio SoC.
@@ -298,7 +278,6 @@ config CLKSRC_MPS2
 
 config ARC_TIMERS
 	bool "Support for 32-bit TIMERn counters in ARC Cores" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select TIMER_OF
 	help
 	  These are legacy 32-bit TIMER0 and TIMER1 counters found on all ARC cores
@@ -307,7 +286,6 @@ config ARC_TIMERS
 
 config ARC_TIMERS_64BIT
 	bool "Support for 64-bit counters in ARC HS38 cores" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on ARC_TIMERS
 	select TIMER_OF
 	help
@@ -407,7 +385,6 @@ config ATMEL_PIT
 
 config ATMEL_ST
 	bool "Atmel ST timer support" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select TIMER_OF
 	select MFD_SYSCON
 	help
@@ -426,7 +403,6 @@ config CLKSRC_EXYNOS_MCT
 
 config CLKSRC_SAMSUNG_PWM
 	bool "PWM timer driver for Samsung S3C, S5P" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	help
 	  This is a new clocksource driver for the PWM timer found in
@@ -436,7 +412,6 @@ config CLKSRC_SAMSUNG_PWM
 
 config FSL_FTM_TIMER
 	bool "Freescale FlexTimer Module driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	select CLKSRC_MMIO
 	help
@@ -450,7 +425,6 @@ config VF_PIT_TIMER
 
 config OXNAS_RPS_TIMER
 	bool "Oxford Semiconductor OXNAS RPS Timers driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select TIMER_OF
 	select CLKSRC_MMIO
 	help
@@ -461,7 +435,7 @@ config SYS_SUPPORTS_SH_CMT
 
 config MTK_TIMER
 	bool "Mediatek timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+	depends on HAS_IOMEM
 	select TIMER_OF
 	select CLKSRC_MMIO
 	help
@@ -479,7 +453,6 @@ config SYS_SUPPORTS_EM_STI
 config CLKSRC_JCORE_PIT
 	bool "J-Core PIT timer driver" if COMPILE_TEST
 	depends on OF
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	select CLKSRC_MMIO
 	help
@@ -488,7 +461,6 @@ config CLKSRC_JCORE_PIT
 
 config SH_TIMER_CMT
 	bool "Renesas CMT timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	default SYS_SUPPORTS_SH_CMT
 	help
@@ -498,7 +470,6 @@ config SH_TIMER_CMT
 
 config SH_TIMER_MTU2
 	bool "Renesas MTU2 timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	default SYS_SUPPORTS_SH_MTU2
 	help
@@ -508,14 +479,12 @@ config SH_TIMER_MTU2
 
 config RENESAS_OSTM
 	bool "Renesas OSTM timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	select CLKSRC_MMIO
 	help
 	  Enables the support for the Renesas OSTM.
 
 config SH_TIMER_TMU
 	bool "Renesas TMU timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	default SYS_SUPPORTS_SH_TMU
 	help
@@ -525,7 +494,7 @@ config SH_TIMER_TMU
 
 config EM_TIMER_STI
 	bool "Renesas STI timer driver" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+	depends on HAS_IOMEM
 	default SYS_SUPPORTS_EM_STI
 	help
 	  This enables build of a clocksource and clockevent driver for
@@ -566,7 +535,6 @@ config CLKSRC_TANGO_XTAL
 
 config CLKSRC_PXA
 	bool "Clocksource for PXA or SA-11x0 platform" if COMPILE_TEST
-	depends on GENERIC_CLOCKEVENTS
 	depends on HAS_IOMEM
 	select CLKSRC_MMIO
 	help
@@ -575,20 +543,20 @@ config CLKSRC_PXA
 
 config H8300_TMR8
         bool "Clockevent timer for the H8300 platform" if COMPILE_TEST
-        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+        depends on HAS_IOMEM
 	help
 	  This enables the 8 bits timer for the H8300 platform.
 
 config H8300_TMR16
         bool "Clockevent timer for the H83069 platform" if COMPILE_TEST
-        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+        depends on HAS_IOMEM
 	help
 	  This enables the 16 bits timer for the H8300 platform with the
 	  H83069 cpu.
 
 config H8300_TPU
         bool "Clocksource for the H8300 platform" if COMPILE_TEST
-        depends on GENERIC_CLOCKEVENTS && HAS_IOMEM
+        depends on HAS_IOMEM
 	help
 	  This enables the clocksource for the H8300 platform with the
 	  H8S2678 cpu.
@@ -600,7 +568,7 @@ config CLKSRC_IMX_GPT
 
 config CLKSRC_IMX_TPM
 	bool "Clocksource using i.MX TPM" if COMPILE_TEST
-	depends on ARM && CLKDEV_LOOKUP && GENERIC_CLOCKEVENTS
+	depends on ARM && CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	help
 	  Enable this option to use IMX Timer/PWM Module (TPM) timer as
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index dbc1ad14515e..72711f1491e3 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TIMER_OF)		+= timer-of.o
 obj-$(CONFIG_TIMER_PROBE)	+= timer-probe.o
 obj-$(CONFIG_ATMEL_PIT)		+= timer-atmel-pit.o
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index fd4b7f684bd0..0ecf5beb56ec 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -299,8 +299,7 @@ static u64 notrace arm64_858921_read_cntvct_el0(void)
 #endif
 
 #ifdef CONFIG_ARM_ARCH_TIMER_OOL_WORKAROUND
-DEFINE_PER_CPU(const struct arch_timer_erratum_workaround *,
-	       timer_unstable_counter_workaround);
+DEFINE_PER_CPU(const struct arch_timer_erratum_workaround *, timer_unstable_counter_workaround);
 EXPORT_SYMBOL_GPL(timer_unstable_counter_workaround);
 
 DEFINE_STATIC_KEY_FALSE(arch_timer_read_ool_enabled);
@@ -1268,10 +1267,6 @@ arch_timer_mem_find_best_frame(struct arch_timer_mem *timer_mem)
 
 	iounmap(cntctlbase);
 
-	if (!best_frame)
-		pr_err("Unable to find a suitable frame in timer @ %pa\n",
-			&timer_mem->cntctlbase);
-
 	return best_frame;
 }
 
@@ -1372,6 +1367,8 @@ static int __init arch_timer_mem_of_init(struct device_node *np)
 
 	frame = arch_timer_mem_find_best_frame(timer_mem);
 	if (!frame) {
+		pr_err("Unable to find a suitable frame in timer @ %pa\n",
+			&timer_mem->cntctlbase);
 		ret = -EINVAL;
 		goto out;
 	}
@@ -1420,7 +1417,7 @@ arch_timer_mem_verify_cntfrq(struct arch_timer_mem *timer_mem)
 static int __init arch_timer_mem_acpi_init(int platform_timer_count)
 {
 	struct arch_timer_mem *timers, *timer;
-	struct arch_timer_mem_frame *frame;
+	struct arch_timer_mem_frame *frame, *best_frame = NULL;
 	int timer_count, i, ret = 0;
 
 	timers = kcalloc(platform_timer_count, sizeof(*timers),
@@ -1432,14 +1429,6 @@ static int __init arch_timer_mem_acpi_init(int platform_timer_count)
 	if (ret || !timer_count)
 		goto out;
 
-	for (i = 0; i < timer_count; i++) {
-		ret = arch_timer_mem_verify_cntfrq(&timers[i]);
-		if (ret) {
-			pr_err("Disabling MMIO timers due to CNTFRQ mismatch\n");
-			goto out;
-		}
-	}
-
 	/*
 	 * While unlikely, it's theoretically possible that none of the frames
 	 * in a timer expose the combination of feature we want.
@@ -1448,12 +1437,26 @@ static int __init arch_timer_mem_acpi_init(int platform_timer_count)
 		timer = &timers[i];
 
 		frame = arch_timer_mem_find_best_frame(timer);
-		if (frame)
-			break;
+		if (!best_frame)
+			best_frame = frame;
+
+		ret = arch_timer_mem_verify_cntfrq(timer);
+		if (ret) {
+			pr_err("Disabling MMIO timers due to CNTFRQ mismatch\n");
+			goto out;
+		}
+
+		if (!best_frame) /* implies !frame */
+			/*
+			 * Only complain about missing suitable frames if we
+			 * haven't already found one in a previous iteration.
+			 */
+			pr_err("Unable to find a suitable frame in timer @ %pa\n",
+				&timer->cntctlbase);
 	}
 
-	if (frame)
-		ret = arch_timer_mem_frame_register(frame);
+	if (best_frame)
+		ret = arch_timer_mem_frame_register(best_frame);
 out:
 	kfree(timers);
 	return ret;
diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index 39e489a96ad7..60da2537bef9 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -71,7 +71,7 @@ static irqreturn_t bcm2835_time_interrupt(int irq, void *dev_id)
 	if (readl_relaxed(timer->control) & timer->match_mask) {
 		writel_relaxed(timer->match_mask, timer->control);
 
-		event_handler = ACCESS_ONCE(timer->evt.event_handler);
+		event_handler = READ_ONCE(timer->evt.event_handler);
 		if (event_handler)
 			event_handler(&timer->evt);
 		return IRQ_HANDLED;
diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index a1df588343f2..1de8cac99a0e 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -117,7 +117,8 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
 	/* Turn off the clock (and clear the event) */
 	disable_timer(cs5535_event_clock);
 
-	if (clockevent_state_shutdown(&cs5535_clockevent))
+	if (clockevent_state_detached(&cs5535_clockevent) ||
+	    clockevent_state_shutdown(&cs5535_clockevent))
 		return IRQ_HANDLED;
 
 	/* Clear the counter */
diff --git a/drivers/clocksource/h8300_timer16.c b/drivers/clocksource/h8300_timer16.c
index dfbd4f8051cb..86ca91451b2e 100644
--- a/drivers/clocksource/h8300_timer16.c
+++ b/drivers/clocksource/h8300_timer16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  H8/300 16bit Timer driver
  *
diff --git a/drivers/clocksource/h8300_timer8.c b/drivers/clocksource/h8300_timer8.c
index f6ffb0cef091..1d740a8c42ab 100644
--- a/drivers/clocksource/h8300_timer8.c
+++ b/drivers/clocksource/h8300_timer8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/arch/h8300/kernel/cpu/timer/timer8.c
  *
diff --git a/drivers/clocksource/h8300_tpu.c b/drivers/clocksource/h8300_tpu.c
index 45a8d17dac1e..17d4ab0f6ad1 100644
--- a/drivers/clocksource/h8300_tpu.c
+++ b/drivers/clocksource/h8300_tpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  H8S TPU Driver
  *
diff --git a/drivers/clocksource/i8253.c b/drivers/clocksource/i8253.c
index 64f6490740d7..9c38895542f4 100644
--- a/drivers/clocksource/i8253.c
+++ b/drivers/clocksource/i8253.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * i8253 PIT clocksource
  */
diff --git a/drivers/clocksource/mips-gic-timer.c b/drivers/clocksource/mips-gic-timer.c
index 17b861ea2626..a04808a21d4e 100644
--- a/drivers/clocksource/mips-gic-timer.c
+++ b/drivers/clocksource/mips-gic-timer.c
@@ -10,25 +10,47 @@
 #include <linux/cpu.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/notifier.h>
 #include <linux/of_irq.h>
 #include <linux/percpu.h>
 #include <linux/smp.h>
 #include <linux/time.h>
+#include <asm/mips-cps.h>
 
 static DEFINE_PER_CPU(struct clock_event_device, gic_clockevent_device);
 static int gic_timer_irq;
 static unsigned int gic_frequency;
 
+static u64 notrace gic_read_count(void)
+{
+	unsigned int hi, hi2, lo;
+
+	if (mips_cm_is64)
+		return read_gic_counter();
+
+	do {
+		hi = read_gic_counter_32h();
+		lo = read_gic_counter_32l();
+		hi2 = read_gic_counter_32h();
+	} while (hi2 != hi);
+
+	return (((u64) hi) << 32) + lo;
+}
+
 static int gic_next_event(unsigned long delta, struct clock_event_device *evt)
 {
+	int cpu = cpumask_first(evt->cpumask);
 	u64 cnt;
 	int res;
 
 	cnt = gic_read_count();
 	cnt += (u64)delta;
-	gic_write_cpu_compare(cnt, cpumask_first(evt->cpumask));
+	if (cpu == raw_smp_processor_id()) {
+		write_gic_vl_compare(cnt);
+	} else {
+		write_gic_vl_other(mips_cm_vp_id(cpu));
+		write_gic_vo_compare(cnt);
+	}
 	res = ((int)(gic_read_count() - cnt) >= 0) ? -ETIME : 0;
 	return res;
 }
@@ -37,7 +59,7 @@ static irqreturn_t gic_compare_interrupt(int irq, void *dev_id)
 {
 	struct clock_event_device *cd = dev_id;
 
-	gic_write_compare(gic_read_compare());
+	write_gic_vl_compare(read_gic_vl_compare());
 	cd->event_handler(cd);
 	return IRQ_HANDLED;
 }
@@ -139,10 +161,15 @@ static struct clocksource gic_clocksource = {
 
 static int __init __gic_clocksource_init(void)
 {
+	unsigned int count_width;
 	int ret;
 
 	/* Set clocksource mask. */
-	gic_clocksource.mask = CLOCKSOURCE_MASK(gic_get_count_width());
+	count_width = read_gic_config() & GIC_CONFIG_COUNTBITS;
+	count_width >>= __fls(GIC_CONFIG_COUNTBITS);
+	count_width *= 4;
+	count_width += 32;
+	gic_clocksource.mask = CLOCKSOURCE_MASK(count_width);
 
 	/* Calculate a somewhat reasonable rating value. */
 	gic_clocksource.rating = 200 + gic_frequency / 10000000;
@@ -159,7 +186,7 @@ static int __init gic_clocksource_of_init(struct device_node *node)
 	struct clk *clk;
 	int ret;
 
-	if (!gic_present || !node->parent ||
+	if (!mips_gic_present() || !node->parent ||
 	    !of_device_is_compatible(node->parent, "mti,gic")) {
 		pr_warn("No DT definition for the mips gic driver\n");
 		return -ENXIO;
@@ -197,7 +224,7 @@ static int __init gic_clocksource_of_init(struct device_node *node)
 	}
 
 	/* And finally start the counter */
-	gic_start_count();
+	clear_gic_config(GIC_CONFIG_COUNTSTOP);
 
 	return 0;
 }
diff --git a/drivers/clocksource/numachip.c b/drivers/clocksource/numachip.c
index 6a20dc8b253f..9a7d7f0f23fe 100644
--- a/drivers/clocksource/numachip.c
+++ b/drivers/clocksource/numachip.c
@@ -43,7 +43,7 @@ static int numachip2_set_next_event(unsigned long delta, struct clock_event_devi
 	return 0;
 }
 
-static struct clock_event_device numachip2_clockevent = {
+static const struct clock_event_device numachip2_clockevent __initconst = {
 	.name            = "numachip2",
 	.rating          = 400,
 	.set_next_event  = numachip2_set_next_event,
diff --git a/drivers/clocksource/owl-timer.c b/drivers/clocksource/owl-timer.c
index d19c53c11094..c68630565079 100644
--- a/drivers/clocksource/owl-timer.c
+++ b/drivers/clocksource/owl-timer.c
@@ -125,7 +125,7 @@ static int __init owl_timer_init(struct device_node *node)
 
 	owl_timer_base = of_io_request_and_map(node, 0, "owl-timer");
 	if (IS_ERR(owl_timer_base)) {
-		pr_err("Can't map timer registers");
+		pr_err("Can't map timer registers\n");
 		return PTR_ERR(owl_timer_base);
 	}
 
@@ -134,7 +134,7 @@ static int __init owl_timer_init(struct device_node *node)
 
 	timer1_irq = of_irq_get_byname(node, "timer1");
 	if (timer1_irq <= 0) {
-		pr_err("Can't parse timer1 IRQ");
+		pr_err("Can't parse timer1 IRQ\n");
 		return -EINVAL;
 	}
 
diff --git a/drivers/clocksource/rockchip_timer.c b/drivers/clocksource/rockchip_timer.c
index c27f4c850d83..33f370dbd0d6 100644
--- a/drivers/clocksource/rockchip_timer.c
+++ b/drivers/clocksource/rockchip_timer.c
@@ -274,7 +274,7 @@ static int __init rk_clksrc_init(struct device_node *np)
 		TIMER_NAME, rk_clksrc->freq, 250, 32,
 		clocksource_mmio_readl_down);
 	if (ret) {
-		pr_err("Failed to register clocksource");
+		pr_err("Failed to register clocksource\n");
 		goto out_clocksource;
 	}
 
diff --git a/drivers/clocksource/sh_cmt.c b/drivers/clocksource/sh_cmt.c
index e09e8bf0bb9b..70b3cf8e23d0 100644
--- a/drivers/clocksource/sh_cmt.c
+++ b/drivers/clocksource/sh_cmt.c
@@ -25,6 +25,7 @@
 #include <linux/irq.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
@@ -39,16 +40,16 @@ struct sh_cmt_device;
  * SoC but also on the particular instance. The following table lists the main
  * characteristics of those flavours.
  *
- *			16B	32B	32B-F	48B	48B-2
+ *			16B	32B	32B-F	48B	R-Car Gen2
  * -----------------------------------------------------------------------------
  * Channels		2	1/4	1	6	2/8
  * Control Width	16	16	16	16	32
  * Counter Width	16	32	32	32/48	32/48
  * Shared Start/Stop	Y	Y	Y	Y	N
  *
- * The 48-bit gen2 version has a per-channel start/stop register located in the
- * channel registers block. All other versions have a shared start/stop register
- * located in the global space.
+ * The r8a73a4 / R-Car Gen2 version has a per-channel start/stop register
+ * located in the channel registers block. All other versions have a shared
+ * start/stop register located in the global space.
  *
  * Channels are indexed from 0 to N-1 in the documentation. The channel index
  * infers the start/stop bit position in the control register and the channel
@@ -66,14 +67,16 @@ struct sh_cmt_device;
 enum sh_cmt_model {
 	SH_CMT_16BIT,
 	SH_CMT_32BIT,
-	SH_CMT_32BIT_FAST,
 	SH_CMT_48BIT,
-	SH_CMT_48BIT_GEN2,
+	SH_CMT0_RCAR_GEN2,
+	SH_CMT1_RCAR_GEN2,
 };
 
 struct sh_cmt_info {
 	enum sh_cmt_model model;
 
+	unsigned int channels_mask;
+
 	unsigned long width; /* 16 or 32 bit version of hardware block */
 	unsigned long overflow_bit;
 	unsigned long clear_bits;
@@ -200,18 +203,20 @@ static const struct sh_cmt_info sh_cmt_info[] = {
 		.read_count = sh_cmt_read32,
 		.write_count = sh_cmt_write32,
 	},
-	[SH_CMT_32BIT_FAST] = {
-		.model = SH_CMT_32BIT_FAST,
+	[SH_CMT_48BIT] = {
+		.model = SH_CMT_48BIT,
+		.channels_mask = 0x3f,
 		.width = 32,
 		.overflow_bit = SH_CMT32_CMCSR_CMF,
 		.clear_bits = ~(SH_CMT32_CMCSR_CMF | SH_CMT32_CMCSR_OVF),
-		.read_control = sh_cmt_read16,
-		.write_control = sh_cmt_write16,
+		.read_control = sh_cmt_read32,
+		.write_control = sh_cmt_write32,
 		.read_count = sh_cmt_read32,
 		.write_count = sh_cmt_write32,
 	},
-	[SH_CMT_48BIT] = {
-		.model = SH_CMT_48BIT,
+	[SH_CMT0_RCAR_GEN2] = {
+		.model = SH_CMT0_RCAR_GEN2,
+		.channels_mask = 0x60,
 		.width = 32,
 		.overflow_bit = SH_CMT32_CMCSR_CMF,
 		.clear_bits = ~(SH_CMT32_CMCSR_CMF | SH_CMT32_CMCSR_OVF),
@@ -220,8 +225,9 @@ static const struct sh_cmt_info sh_cmt_info[] = {
 		.read_count = sh_cmt_read32,
 		.write_count = sh_cmt_write32,
 	},
-	[SH_CMT_48BIT_GEN2] = {
-		.model = SH_CMT_48BIT_GEN2,
+	[SH_CMT1_RCAR_GEN2] = {
+		.model = SH_CMT1_RCAR_GEN2,
+		.channels_mask = 0xff,
 		.width = 32,
 		.overflow_bit = SH_CMT32_CMCSR_CMF,
 		.clear_bits = ~(SH_CMT32_CMCSR_CMF | SH_CMT32_CMCSR_OVF),
@@ -859,6 +865,7 @@ static int sh_cmt_setup_channel(struct sh_cmt_channel *ch, unsigned int index,
 	ch->cmt = cmt;
 	ch->index = index;
 	ch->hwidx = hwidx;
+	ch->timer_bit = hwidx;
 
 	/*
 	 * Compute the address of the channel control register block. For the
@@ -873,16 +880,11 @@ static int sh_cmt_setup_channel(struct sh_cmt_channel *ch, unsigned int index,
 	case SH_CMT_48BIT:
 		ch->ioctrl = cmt->mapbase + 0x10 + ch->hwidx * 0x10;
 		break;
-	case SH_CMT_32BIT_FAST:
-		/*
-		 * The 32-bit "fast" timer has a single channel at hwidx 5 but
-		 * is located at offset 0x40 instead of 0x60 for some reason.
-		 */
-		ch->ioctrl = cmt->mapbase + 0x40;
-		break;
-	case SH_CMT_48BIT_GEN2:
+	case SH_CMT0_RCAR_GEN2:
+	case SH_CMT1_RCAR_GEN2:
 		ch->iostart = cmt->mapbase + ch->hwidx * 0x100;
 		ch->ioctrl = ch->iostart + 0x10;
+		ch->timer_bit = 0;
 		break;
 	}
 
@@ -894,8 +896,6 @@ static int sh_cmt_setup_channel(struct sh_cmt_channel *ch, unsigned int index,
 	ch->match_value = ch->max_match_value;
 	raw_spin_lock_init(&ch->lock);
 
-	ch->timer_bit = cmt->info->model == SH_CMT_48BIT_GEN2 ? 0 : ch->hwidx;
-
 	ret = sh_cmt_register(ch, dev_name(&cmt->pdev->dev),
 			      clockevent, clocksource);
 	if (ret) {
@@ -935,22 +935,18 @@ static const struct platform_device_id sh_cmt_id_table[] = {
 MODULE_DEVICE_TABLE(platform, sh_cmt_id_table);
 
 static const struct of_device_id sh_cmt_of_table[] __maybe_unused = {
-	{ .compatible = "renesas,cmt-32", .data = &sh_cmt_info[SH_CMT_32BIT] },
-	{ .compatible = "renesas,cmt-32-fast", .data = &sh_cmt_info[SH_CMT_32BIT_FAST] },
 	{ .compatible = "renesas,cmt-48", .data = &sh_cmt_info[SH_CMT_48BIT] },
-	{ .compatible = "renesas,cmt-48-gen2", .data = &sh_cmt_info[SH_CMT_48BIT_GEN2] },
+	{
+		/* deprecated, preserved for backward compatibility */
+		.compatible = "renesas,cmt-48-gen2",
+		.data = &sh_cmt_info[SH_CMT0_RCAR_GEN2]
+	},
+	{ .compatible = "renesas,rcar-gen2-cmt0", .data = &sh_cmt_info[SH_CMT0_RCAR_GEN2] },
+	{ .compatible = "renesas,rcar-gen2-cmt1", .data = &sh_cmt_info[SH_CMT1_RCAR_GEN2] },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, sh_cmt_of_table);
 
-static int sh_cmt_parse_dt(struct sh_cmt_device *cmt)
-{
-	struct device_node *np = cmt->pdev->dev.of_node;
-
-	return of_property_read_u32(np, "renesas,channels-mask",
-				    &cmt->hw_channels);
-}
-
 static int sh_cmt_setup(struct sh_cmt_device *cmt, struct platform_device *pdev)
 {
 	unsigned int mask;
@@ -961,14 +957,8 @@ static int sh_cmt_setup(struct sh_cmt_device *cmt, struct platform_device *pdev)
 	raw_spin_lock_init(&cmt->lock);
 
 	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
-		const struct of_device_id *id;
-
-		id = of_match_node(sh_cmt_of_table, pdev->dev.of_node);
-		cmt->info = id->data;
-
-		ret = sh_cmt_parse_dt(cmt);
-		if (ret < 0)
-			return ret;
+		cmt->info = of_device_get_match_data(&pdev->dev);
+		cmt->hw_channels = cmt->info->channels_mask;
 	} else if (pdev->dev.platform_data) {
 		struct sh_timer_config *cfg = pdev->dev.platform_data;
 		const struct platform_device_id *id = pdev->id_entry;
diff --git a/drivers/clocksource/tango_xtal.c b/drivers/clocksource/tango_xtal.c
index 6a8d9838ce33..3f94e454ef99 100644
--- a/drivers/clocksource/tango_xtal.c
+++ b/drivers/clocksource/tango_xtal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/clocksource.h>
 #include <linux/sched_clock.h>
 #include <linux/of_address.h>
diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 59e8aee0ec16..9de47d4d2d9e 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
diff --git a/drivers/clocksource/timer-fttmr010.c b/drivers/clocksource/timer-fttmr010.c
index 66dd909960c6..c020038ebfab 100644
--- a/drivers/clocksource/timer-fttmr010.c
+++ b/drivers/clocksource/timer-fttmr010.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Faraday Technology FTTMR010 timer driver
  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
@@ -263,14 +264,14 @@ static int __init fttmr010_common_init(struct device_node *np, bool is_aspeed)
 
 	fttmr010->base = of_iomap(np, 0);
 	if (!fttmr010->base) {
-		pr_err("Can't remap registers");
+		pr_err("Can't remap registers\n");
 		ret = -ENXIO;
 		goto out_free;
 	}
 	/* IRQ for timer 1 */
 	irq = irq_of_parse_and_map(np, 0);
 	if (irq <= 0) {
-		pr_err("Can't parse IRQ");
+		pr_err("Can't parse IRQ\n");
 		ret = -EINVAL;
 		goto out_unmap;
 	}
diff --git a/drivers/clocksource/timer-integrator-ap.c b/drivers/clocksource/timer-integrator-ap.c
index 2ff64d9d4fb3..62d24690ba02 100644
--- a/drivers/clocksource/timer-integrator-ap.c
+++ b/drivers/clocksource/timer-integrator-ap.c
@@ -36,8 +36,8 @@ static u64 notrace integrator_read_sched_clock(void)
 	return -readl(sched_clk_base + TIMER_VALUE);
 }
 
-static int integrator_clocksource_init(unsigned long inrate,
-				       void __iomem *base)
+static int __init integrator_clocksource_init(unsigned long inrate,
+					      void __iomem *base)
 {
 	u32 ctrl = TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC;
 	unsigned long rate = inrate;
diff --git a/drivers/clocksource/timer-of.c b/drivers/clocksource/timer-of.c
index c79122d8e10d..7c64a5c1bfc1 100644
--- a/drivers/clocksource/timer-of.c
+++ b/drivers/clocksource/timer-of.c
@@ -176,3 +176,15 @@ out_fail:
 		timer_base_exit(&to->of_base);
 	return ret;
 }
+
+void timer_of_exit(struct timer_of *to)
+{
+	if (to->flags & TIMER_OF_IRQ)
+		timer_irq_exit(&to->of_irq);
+
+	if (to->flags & TIMER_OF_CLOCK)
+		timer_clk_exit(&to->of_clk);
+
+	if (to->flags & TIMER_OF_BASE)
+		timer_base_exit(&to->of_base);
+}
diff --git a/drivers/clocksource/timer-of.h b/drivers/clocksource/timer-of.h
index e0d727255f72..43f5ba3f8979 100644
--- a/drivers/clocksource/timer-of.h
+++ b/drivers/clocksource/timer-of.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TIMER_OF_H__
 #define __TIMER_OF_H__
 
@@ -66,4 +67,7 @@ static inline unsigned long timer_of_period(struct timer_of *to)
 
 extern int __init timer_of_init(struct device_node *np,
 				struct timer_of *to);
+
+extern void timer_of_exit(struct timer_of *to);
+
 #endif
diff --git a/drivers/clocksource/timer-sp.h b/drivers/clocksource/timer-sp.h
index 050d88561e9c..b2037eb94a41 100644
--- a/drivers/clocksource/timer-sp.h
+++ b/drivers/clocksource/timer-sp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ARM timer implementation, found in Integrator, Versatile and Realview
  * platforms.  Not all platforms support all registers and bits in these
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index c7af9b2a255e..812f9e0d01a3 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # CPUfreq core
 obj-$(CONFIG_CPU_FREQ)			+= cpufreq.o freq_table.o
 
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 17504129fd77..65ec5f01aa8d 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -57,7 +57,7 @@ static bool bL_switching_enabled;
 #define VIRT_FREQ(cluster, freq)    ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
 
 static struct thermal_cooling_device *cdev[MAX_CLUSTERS];
-static struct cpufreq_arm_bL_ops *arm_bL_ops;
+static const struct cpufreq_arm_bL_ops *arm_bL_ops;
 static struct clk *clk[MAX_CLUSTERS];
 static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
 static atomic_t cluster_usage[MAX_CLUSTERS + 1];
@@ -213,6 +213,7 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
 {
 	u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster;
 	unsigned int freqs_new;
+	int ret;
 
 	cur_cluster = cpu_to_cluster(cpu);
 	new_cluster = actual_cluster = per_cpu(physical_cluster, cpu);
@@ -229,7 +230,14 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
 		}
 	}
 
-	return bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs_new);
+	ret = bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs_new);
+
+	if (!ret) {
+		arch_set_freq_scale(policy->related_cpus, freqs_new,
+				    policy->cpuinfo.max_freq);
+	}
+
+	return ret;
 }
 
 static inline u32 get_table_count(struct cpufreq_frequency_table *table)
@@ -609,7 +617,7 @@ static int __bLs_register_notifier(void) { return 0; }
 static int __bLs_unregister_notifier(void) { return 0; }
 #endif
 
-int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
+int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops)
 {
 	int ret, i;
 
@@ -653,7 +661,7 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 }
 EXPORT_SYMBOL_GPL(bL_cpufreq_register);
 
-void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops)
+void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops)
 {
 	if (arm_bL_ops != ops) {
 		pr_err("%s: Registered with: %s, can't unregister, exiting\n",
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 184d7c3a112a..88a176e466c8 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -37,7 +37,7 @@ struct cpufreq_arm_bL_ops {
 	void (*free_opp_table)(const struct cpumask *cpumask);
 };
 
-int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
-void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops);
+int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops);
+void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops);
 
 #endif /* CPUFREQ_ARM_BIG_LITTLE_H */
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index 39b3f51d9a30..b944f290c8a4 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -61,7 +61,7 @@ static int dt_get_transition_latency(struct device *cpu_dev)
 	return transition_latency;
 }
 
-static struct cpufreq_arm_bL_ops dt_bL_ops = {
+static const struct cpufreq_arm_bL_ops dt_bL_ops = {
 	.name	= "dt-bl",
 	.get_transition_latency = dt_get_transition_latency,
 	.init_opp_table = dev_pm_opp_of_cpumask_add_table,
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index a020da7940d6..ecc56e26f8f6 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -48,7 +48,6 @@ static const struct of_device_id whitelist[] __initconst = {
 
 	{ .compatible = "samsung,exynos3250", },
 	{ .compatible = "samsung,exynos4210", },
-	{ .compatible = "samsung,exynos4212", },
 	{ .compatible = "samsung,exynos5250", },
 #ifndef CONFIG_BL_SWITCHER
 	{ .compatible = "samsung,exynos5800", },
@@ -83,8 +82,6 @@ static const struct of_device_id whitelist[] __initconst = {
 	{ .compatible = "rockchip,rk3368", },
 	{ .compatible = "rockchip,rk3399", },
 
-	{ .compatible = "socionext,uniphier-ld6b", },
-
 	{ .compatible = "st-ericsson,u8500", },
 	{ .compatible = "st-ericsson,u8540", },
 	{ .compatible = "st-ericsson,u9500", },
@@ -106,6 +103,22 @@ static const struct of_device_id whitelist[] __initconst = {
  * platforms using "operating-points-v2" property.
  */
 static const struct of_device_id blacklist[] __initconst = {
+	{ .compatible = "calxeda,highbank", },
+	{ .compatible = "calxeda,ecx-2000", },
+
+	{ .compatible = "marvell,armadaxp", },
+
+	{ .compatible = "nvidia,tegra124", },
+
+	{ .compatible = "st,stih407", },
+	{ .compatible = "st,stih410", },
+
+	{ .compatible = "sigma,tango4", },
+
+	{ .compatible = "ti,am33xx", },
+	{ .compatible = "ti,am43", },
+	{ .compatible = "ti,dra7", },
+
 	{ }
 };
 
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index d83ab94d041a..545946ad0752 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -43,9 +43,17 @@ static struct freq_attr *cpufreq_dt_attr[] = {
 static int set_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct private_data *priv = policy->driver_data;
+	unsigned long freq = policy->freq_table[index].frequency;
+	int ret;
+
+	ret = dev_pm_opp_set_rate(priv->cpu_dev, freq * 1000);
 
-	return dev_pm_opp_set_rate(priv->cpu_dev,
-				   policy->freq_table[index].frequency * 1000);
+	if (!ret) {
+		arch_set_freq_scale(policy->related_cpus, freq,
+				    policy->cpuinfo.max_freq);
+	}
+
+	return ret;
 }
 
 /*
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ea43b147a7fe..41d148af7748 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -161,6 +161,12 @@ u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
 }
 EXPORT_SYMBOL_GPL(get_cpu_idle_time);
 
+__weak void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
+		unsigned long max_freq)
+{
+}
+EXPORT_SYMBOL_GPL(arch_set_freq_scale);
+
 /*
  * This is a generic cpufreq init() routine which can be used by cpufreq
  * drivers of SMP systems. It will do following:
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index e75880eb037d..1e55b5790853 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -118,8 +118,11 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
 			break;
 		len += snprintf(buf + len, PAGE_SIZE - len, "\n");
 	}
-	if (len >= PAGE_SIZE)
-		return PAGE_SIZE;
+
+	if (len >= PAGE_SIZE) {
+		pr_warn_once("cpufreq transition table exceeds PAGE_SIZE. Disabling\n");
+		return -EFBIG;
+	}
 	return len;
 }
 cpufreq_freq_attr_ro(trans_table);
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index 601b88c490cf..455b4fb78cba 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/cpufreq.h>
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 22b2cdde74d9..4c4b5dd685e3 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/cpufreq.h>
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 14466a9b01c0..628fe899cb48 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -12,6 +12,7 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/pm_opp.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
@@ -191,6 +192,57 @@ static struct cpufreq_driver imx6q_cpufreq_driver = {
 	.suspend = cpufreq_generic_suspend,
 };
 
+#define OCOTP_CFG3			0x440
+#define OCOTP_CFG3_SPEED_SHIFT		16
+#define OCOTP_CFG3_SPEED_1P2GHZ		0x3
+#define OCOTP_CFG3_SPEED_996MHZ		0x2
+#define OCOTP_CFG3_SPEED_852MHZ		0x1
+
+static void imx6q_opp_check_speed_grading(struct device *dev)
+{
+	struct device_node *np;
+	void __iomem *base;
+	u32 val;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp");
+	if (!np)
+		return;
+
+	base = of_iomap(np, 0);
+	if (!base) {
+		dev_err(dev, "failed to map ocotp\n");
+		goto put_node;
+	}
+
+	/*
+	 * SPEED_GRADING[1:0] defines the max speed of ARM:
+	 * 2b'11: 1200000000Hz;
+	 * 2b'10: 996000000Hz;
+	 * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
+	 * 2b'00: 792000000Hz;
+	 * We need to set the max speed of ARM according to fuse map.
+	 */
+	val = readl_relaxed(base + OCOTP_CFG3);
+	val >>= OCOTP_CFG3_SPEED_SHIFT;
+	val &= 0x3;
+
+	if ((val != OCOTP_CFG3_SPEED_1P2GHZ) &&
+	     of_machine_is_compatible("fsl,imx6q"))
+		if (dev_pm_opp_disable(dev, 1200000000))
+			dev_warn(dev, "failed to disable 1.2GHz OPP\n");
+	if (val < OCOTP_CFG3_SPEED_996MHZ)
+		if (dev_pm_opp_disable(dev, 996000000))
+			dev_warn(dev, "failed to disable 996MHz OPP\n");
+	if (of_machine_is_compatible("fsl,imx6q")) {
+		if (val != OCOTP_CFG3_SPEED_852MHZ)
+			if (dev_pm_opp_disable(dev, 852000000))
+				dev_warn(dev, "failed to disable 852MHz OPP\n");
+	}
+	iounmap(base);
+put_node:
+	of_node_put(np);
+}
+
 static int imx6q_cpufreq_probe(struct platform_device *pdev)
 {
 	struct device_node *np;
@@ -252,28 +304,21 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 		goto put_reg;
 	}
 
-	/*
-	 * We expect an OPP table supplied by platform.
-	 * Just, incase the platform did not supply the OPP
-	 * table, it will try to get it.
-	 */
-	num = dev_pm_opp_get_opp_count(cpu_dev);
-	if (num < 0) {
-		ret = dev_pm_opp_of_add_table(cpu_dev);
-		if (ret < 0) {
-			dev_err(cpu_dev, "failed to init OPP table: %d\n", ret);
-			goto put_reg;
-		}
+	ret = dev_pm_opp_of_add_table(cpu_dev);
+	if (ret < 0) {
+		dev_err(cpu_dev, "failed to init OPP table: %d\n", ret);
+		goto put_reg;
+	}
 
-		/* Because we have added the OPPs here, we must free them */
-		free_opp = true;
+	imx6q_opp_check_speed_grading(cpu_dev);
 
-		num = dev_pm_opp_get_opp_count(cpu_dev);
-		if (num < 0) {
-			ret = num;
-			dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
-			goto out_free_opp;
-		}
+	/* Because we have added the OPPs here, we must free them */
+	free_opp = true;
+	num = dev_pm_opp_get_opp_count(cpu_dev);
+	if (num < 0) {
+		ret = num;
+		dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
+		goto out_free_opp;
 	}
 
 	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 9f013ed42977..80ac313e6c59 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -578,7 +578,7 @@ static int acer_cpufreq_pst(const struct dmi_system_id *d)
  * A BIOS update is all that can save them.
  * Mention this, and disable cpufreq.
  */
-static struct dmi_system_id powernow_dmi_table[] = {
+static const struct dmi_system_id powernow_dmi_table[] = {
 	{
 		.callback = acer_cpufreq_pst,
 		.ident = "Acer Aspire",
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 062d71434e47..b01e31db5f83 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1043,7 +1043,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data) {
-		pr_err("unable to alloc powernow_k8_data");
+		pr_err("unable to alloc powernow_k8_data\n");
 		return -ENOMEM;
 	}
 
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index 3ff5160451b4..b6d7c4c98d0a 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -90,6 +90,7 @@ struct global_pstate_info {
 	int last_gpstate_idx;
 	spinlock_t gpstate_lock;
 	struct timer_list timer;
+	struct cpufreq_policy *policy;
 };
 
 static struct cpufreq_frequency_table powernv_freqs[POWERNV_MAX_PSTATES+1];
@@ -625,10 +626,10 @@ static inline void  queue_gpstate_timer(struct global_pstate_info *gpstates)
  * according quadratic equation. Queues a new timer if it is still not equal
  * to local pstate
  */
-void gpstate_timer_handler(unsigned long data)
+void gpstate_timer_handler(struct timer_list *t)
 {
-	struct cpufreq_policy *policy = (struct cpufreq_policy *)data;
-	struct global_pstate_info *gpstates = policy->driver_data;
+	struct global_pstate_info *gpstates = from_timer(gpstates, t, timer);
+	struct cpufreq_policy *policy = gpstates->policy;
 	int gpstate_idx, lpstate_idx;
 	unsigned long val;
 	unsigned int time_diff = jiffies_to_msecs(jiffies)
@@ -800,9 +801,9 @@ static int powernv_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->driver_data = gpstates;
 
 	/* initialize timer */
-	init_timer_pinned_deferrable(&gpstates->timer);
-	gpstates->timer.data = (unsigned long)policy;
-	gpstates->timer.function = gpstate_timer_handler;
+	gpstates->policy = policy;
+	timer_setup(&gpstates->timer, gpstate_timer_handler,
+		    TIMER_PINNED | TIMER_DEFERRABLE);
 	gpstates->timer.expires = jiffies +
 				msecs_to_jiffies(GPSTATE_TIMER_INTERVAL);
 	spin_lock_init(&gpstates->gpstate_lock);
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.h b/drivers/cpufreq/ppc_cbe_cpufreq.h
index 3eace725ccd6..9d973519d669 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.h
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ppc_cbe_cpufreq.h
  *
diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index ce345bf34d5d..06b024a3e474 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -58,56 +58,40 @@ module_param(pxa27x_maxfreq, uint, 0);
 MODULE_PARM_DESC(pxa27x_maxfreq, "Set the pxa27x maxfreq in MHz"
 		 "(typically 624=>pxa270, 416=>pxa271, 520=>pxa272)");
 
+struct pxa_cpufreq_data {
+	struct clk *clk_core;
+};
+static struct pxa_cpufreq_data  pxa_cpufreq_data;
+
 struct pxa_freqs {
 	unsigned int khz;
-	unsigned int membus;
-	unsigned int cccr;
-	unsigned int div2;
-	unsigned int cclkcfg;
 	int vmin;
 	int vmax;
 };
 
-/* Define the refresh period in mSec for the SDRAM and the number of rows */
-#define SDRAM_TREF	64	/* standard 64ms SDRAM */
-static unsigned int sdram_rows;
-
-#define CCLKCFG_TURBO		0x1
-#define CCLKCFG_FCS		0x2
-#define CCLKCFG_HALFTURBO	0x4
-#define CCLKCFG_FASTBUS		0x8
-#define MDREFR_DB2_MASK		(MDREFR_K2DB2 | MDREFR_K1DB2)
-#define MDREFR_DRI_MASK		0xFFF
-
-#define MDCNFG_DRAC2(mdcnfg) (((mdcnfg) >> 21) & 0x3)
-#define MDCNFG_DRAC0(mdcnfg) (((mdcnfg) >> 5) & 0x3)
-
 /*
  * PXA255 definitions
  */
-/* Use the run mode frequencies for the CPUFREQ_POLICY_PERFORMANCE policy */
-#define CCLKCFG			CCLKCFG_TURBO | CCLKCFG_FCS
-
 static const struct pxa_freqs pxa255_run_freqs[] =
 {
-	/* CPU   MEMBUS  CCCR  DIV2 CCLKCFG	           run  turbo PXbus SDRAM */
-	{ 99500,  99500, 0x121, 1,  CCLKCFG, -1, -1},	/*  99,   99,   50,   50  */
-	{132700, 132700, 0x123, 1,  CCLKCFG, -1, -1},	/* 133,  133,   66,   66  */
-	{199100,  99500, 0x141, 0,  CCLKCFG, -1, -1},	/* 199,  199,   99,   99  */
-	{265400, 132700, 0x143, 1,  CCLKCFG, -1, -1},	/* 265,  265,  133,   66  */
-	{331800, 165900, 0x145, 1,  CCLKCFG, -1, -1},	/* 331,  331,  166,   83  */
-	{398100,  99500, 0x161, 0,  CCLKCFG, -1, -1},	/* 398,  398,  196,   99  */
+	/* CPU   MEMBUS		   run  turbo PXbus SDRAM */
+	{ 99500, -1, -1},	/*  99,   99,   50,   50  */
+	{132700, -1, -1},	/* 133,  133,   66,   66  */
+	{199100, -1, -1},	/* 199,  199,   99,   99  */
+	{265400, -1, -1},	/* 265,  265,  133,   66  */
+	{331800, -1, -1},	/* 331,  331,  166,   83  */
+	{398100, -1, -1},	/* 398,  398,  196,   99  */
 };
 
 /* Use the turbo mode frequencies for the CPUFREQ_POLICY_POWERSAVE policy */
 static const struct pxa_freqs pxa255_turbo_freqs[] =
 {
-	/* CPU   MEMBUS  CCCR  DIV2 CCLKCFG	   run  turbo PXbus SDRAM */
-	{ 99500, 99500,  0x121, 1,  CCLKCFG, -1, -1},	/*  99,   99,   50,   50  */
-	{199100, 99500,  0x221, 0,  CCLKCFG, -1, -1},	/*  99,  199,   50,   99  */
-	{298500, 99500,  0x321, 0,  CCLKCFG, -1, -1},	/*  99,  287,   50,   99  */
-	{298600, 99500,  0x1c1, 0,  CCLKCFG, -1, -1},	/* 199,  287,   99,   99  */
-	{398100, 99500,  0x241, 0,  CCLKCFG, -1, -1},	/* 199,  398,   99,   99  */
+	/* CPU			   run  turbo PXbus SDRAM */
+	{ 99500, -1, -1},	/*  99,   99,   50,   50  */
+	{199100, -1, -1},	/*  99,  199,   50,   99  */
+	{298500, -1, -1},	/*  99,  287,   50,   99  */
+	{298600, -1, -1},	/* 199,  287,   99,   99  */
+	{398100, -1, -1},	/* 199,  398,   99,   99  */
 };
 
 #define NUM_PXA25x_RUN_FREQS ARRAY_SIZE(pxa255_run_freqs)
@@ -122,47 +106,14 @@ static unsigned int pxa255_turbo_table;
 module_param(pxa255_turbo_table, uint, 0);
 MODULE_PARM_DESC(pxa255_turbo_table, "Selects the frequency table (0 = run table, !0 = turbo table)");
 
-/*
- * PXA270 definitions
- *
- * For the PXA27x:
- * Control variables are A, L, 2N for CCCR; B, HT, T for CLKCFG.
- *
- * A = 0 => memory controller clock from table 3-7,
- * A = 1 => memory controller clock = system bus clock
- * Run mode frequency	= 13 MHz * L
- * Turbo mode frequency = 13 MHz * L * N
- * System bus frequency = 13 MHz * L / (B + 1)
- *
- * In CCCR:
- * A = 1
- * L = 16	  oscillator to run mode ratio
- * 2N = 6	  2 * (turbo mode to run mode ratio)
- *
- * In CCLKCFG:
- * B = 1	  Fast bus mode
- * HT = 0	  Half-Turbo mode
- * T = 1	  Turbo mode
- *
- * For now, just support some of the combinations in table 3-7 of
- * PXA27x Processor Family Developer's Manual to simplify frequency
- * change sequences.
- */
-#define PXA27x_CCCR(A, L, N2) (A << 25 | N2 << 7 | L)
-#define CCLKCFG2(B, HT, T) \
-  (CCLKCFG_FCS | \
-   ((B)  ? CCLKCFG_FASTBUS : 0) | \
-   ((HT) ? CCLKCFG_HALFTURBO : 0) | \
-   ((T)  ? CCLKCFG_TURBO : 0))
-
 static struct pxa_freqs pxa27x_freqs[] = {
-	{104000, 104000, PXA27x_CCCR(1,	 8, 2), 0, CCLKCFG2(1, 0, 1),  900000, 1705000 },
-	{156000, 104000, PXA27x_CCCR(1,	 8, 3), 0, CCLKCFG2(1, 0, 1), 1000000, 1705000 },
-	{208000, 208000, PXA27x_CCCR(0, 16, 2), 1, CCLKCFG2(0, 0, 1), 1180000, 1705000 },
-	{312000, 208000, PXA27x_CCCR(1, 16, 3), 1, CCLKCFG2(1, 0, 1), 1250000, 1705000 },
-	{416000, 208000, PXA27x_CCCR(1, 16, 4), 1, CCLKCFG2(1, 0, 1), 1350000, 1705000 },
-	{520000, 208000, PXA27x_CCCR(1, 16, 5), 1, CCLKCFG2(1, 0, 1), 1450000, 1705000 },
-	{624000, 208000, PXA27x_CCCR(1, 16, 6), 1, CCLKCFG2(1, 0, 1), 1550000, 1705000 }
+	{104000,  900000, 1705000 },
+	{156000, 1000000, 1705000 },
+	{208000, 1180000, 1705000 },
+	{312000, 1250000, 1705000 },
+	{416000, 1350000, 1705000 },
+	{520000, 1450000, 1705000 },
+	{624000, 1550000, 1705000 }
 };
 
 #define NUM_PXA27x_FREQS ARRAY_SIZE(pxa27x_freqs)
@@ -241,51 +192,29 @@ static void pxa27x_guess_max_freq(void)
 	}
 }
 
-static void init_sdram_rows(void)
-{
-	uint32_t mdcnfg = __raw_readl(MDCNFG);
-	unsigned int drac2 = 0, drac0 = 0;
-
-	if (mdcnfg & (MDCNFG_DE2 | MDCNFG_DE3))
-		drac2 = MDCNFG_DRAC2(mdcnfg);
-
-	if (mdcnfg & (MDCNFG_DE0 | MDCNFG_DE1))
-		drac0 = MDCNFG_DRAC0(mdcnfg);
-
-	sdram_rows = 1 << (11 + max(drac0, drac2));
-}
-
-static u32 mdrefr_dri(unsigned int freq)
-{
-	u32 interval = freq * SDRAM_TREF / sdram_rows;
-
-	return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32;
-}
-
 static unsigned int pxa_cpufreq_get(unsigned int cpu)
 {
-	return get_clk_frequency_khz(0);
+	struct pxa_cpufreq_data *data = cpufreq_get_driver_data();
+
+	return (unsigned int) clk_get_rate(data->clk_core) / 1000;
 }
 
 static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 {
 	struct cpufreq_frequency_table *pxa_freqs_table;
 	const struct pxa_freqs *pxa_freq_settings;
-	unsigned long flags;
-	unsigned int new_freq_cpu, new_freq_mem;
-	unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg;
+	struct pxa_cpufreq_data *data = cpufreq_get_driver_data();
+	unsigned int new_freq_cpu;
 	int ret = 0;
 
 	/* Get the current policy */
 	find_freq_tables(&pxa_freqs_table, &pxa_freq_settings);
 
 	new_freq_cpu = pxa_freq_settings[idx].khz;
-	new_freq_mem = pxa_freq_settings[idx].membus;
 
 	if (freq_debug)
-		pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
-			 new_freq_cpu / 1000, (pxa_freq_settings[idx].div2) ?
-			 (new_freq_mem / 2000) : (new_freq_mem / 1000));
+		pr_debug("Changing CPU frequency from %d Mhz to %d Mhz\n",
+			 policy->cur / 1000,  new_freq_cpu / 1000);
 
 	if (vcc_core && new_freq_cpu > policy->cur) {
 		ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]);
@@ -293,53 +222,7 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 			return ret;
 	}
 
-	/* Calculate the next MDREFR.  If we're slowing down the SDRAM clock
-	 * we need to preset the smaller DRI before the change.	 If we're
-	 * speeding up we need to set the larger DRI value after the change.
-	 */
-	preset_mdrefr = postset_mdrefr = __raw_readl(MDREFR);
-	if ((preset_mdrefr & MDREFR_DRI_MASK) > mdrefr_dri(new_freq_mem)) {
-		preset_mdrefr = (preset_mdrefr & ~MDREFR_DRI_MASK);
-		preset_mdrefr |= mdrefr_dri(new_freq_mem);
-	}
-	postset_mdrefr =
-		(postset_mdrefr & ~MDREFR_DRI_MASK) | mdrefr_dri(new_freq_mem);
-
-	/* If we're dividing the memory clock by two for the SDRAM clock, this
-	 * must be set prior to the change.  Clearing the divide must be done
-	 * after the change.
-	 */
-	if (pxa_freq_settings[idx].div2) {
-		preset_mdrefr  |= MDREFR_DB2_MASK;
-		postset_mdrefr |= MDREFR_DB2_MASK;
-	} else {
-		postset_mdrefr &= ~MDREFR_DB2_MASK;
-	}
-
-	local_irq_save(flags);
-
-	/* Set new the CCCR and prepare CCLKCFG */
-	writel(pxa_freq_settings[idx].cccr, CCCR);
-	cclkcfg = pxa_freq_settings[idx].cclkcfg;
-
-	asm volatile("							\n\
-		ldr	r4, [%1]		/* load MDREFR */	\n\
-		b	2f						\n\
-		.align	5						\n\
-1:									\n\
-		str	%3, [%1]		/* preset the MDREFR */	\n\
-		mcr	p14, 0, %2, c6, c0, 0	/* set CCLKCFG[FCS] */	\n\
-		str	%4, [%1]		/* postset the MDREFR */ \n\
-									\n\
-		b	3f						\n\
-2:		b	1b						\n\
-3:		nop							\n\
-	  "
-		     : "=&r" (unused)
-		     : "r" (MDREFR), "r" (cclkcfg),
-		       "r" (preset_mdrefr), "r" (postset_mdrefr)
-		     : "r4", "r5");
-	local_irq_restore(flags);
+	clk_set_rate(data->clk_core, new_freq_cpu * 1000);
 
 	/*
 	 * Even if voltage setting fails, we don't report it, as the frequency
@@ -369,8 +252,6 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 
 	pxa_cpufreq_init_voltages();
 
-	init_sdram_rows();
-
 	/* set default policy and cpuinfo */
 	policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
 
@@ -429,11 +310,17 @@ static struct cpufreq_driver pxa_cpufreq_driver = {
 	.init	= pxa_cpufreq_init,
 	.get	= pxa_cpufreq_get,
 	.name	= "PXA2xx",
+	.driver_data = &pxa_cpufreq_data,
 };
 
 static int __init pxa_cpu_init(void)
 {
 	int ret = -ENODEV;
+
+	pxa_cpufreq_data.clk_core = clk_get_sys(NULL, "core");
+	if (IS_ERR(pxa_cpufreq_data.clk_core))
+		return PTR_ERR(pxa_cpufreq_data.clk_core);
+
 	if (cpu_is_pxa25x() || cpu_is_pxa27x())
 		ret = cpufreq_register_driver(&pxa_cpufreq_driver);
 	return ret;
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index 8de2364b5995..05d299052c5c 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -53,7 +53,7 @@ static int scpi_init_opp_table(const struct cpumask *cpumask)
 	return ret;
 }
 
-static struct cpufreq_arm_bL_ops scpi_cpufreq_ops = {
+static const struct cpufreq_arm_bL_ops scpi_cpufreq_ops = {
 	.name	= "scpi",
 	.get_transition_latency = scpi_get_transition_latency,
 	.init_opp_table = scpi_init_opp_table,
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 4894924a3ca2..195f27f9c1cb 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -177,7 +177,7 @@ static int spear_cpufreq_probe(struct platform_device *pdev)
 
 	np = of_cpu_device_node_get(0);
 	if (!np) {
-		pr_err("No cpu node found");
+		pr_err("No cpu node found\n");
 		return -ENODEV;
 	}
 
@@ -187,7 +187,7 @@ static int spear_cpufreq_probe(struct platform_device *pdev)
 
 	prop = of_find_property(np, "cpufreq_tbl", NULL);
 	if (!prop || !prop->value) {
-		pr_err("Invalid cpufreq_tbl");
+		pr_err("Invalid cpufreq_tbl\n");
 		ret = -ENODEV;
 		goto out_put_node;
 	}
diff --git a/drivers/cpufreq/speedstep-lib.c b/drivers/cpufreq/speedstep-lib.c
index ccab452a4ef5..8085ec9000d1 100644
--- a/drivers/cpufreq/speedstep-lib.c
+++ b/drivers/cpufreq/speedstep-lib.c
@@ -367,7 +367,7 @@ unsigned int speedstep_detect_processor(void)
 			} else
 				return SPEEDSTEP_CPU_PIII_C;
 		}
-
+		/* fall through */
 	default:
 		return 0;
 	}
diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index b29cd3398463..923317f03b4b 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -190,7 +190,7 @@ static int ti_cpufreq_setup_syscon_register(struct ti_cpufreq_data *opp_data)
 
 static const struct of_device_id ti_cpufreq_of_match[] = {
 	{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
-	{ .compatible = "ti,am4372", .data = &am4x_soc_data, },
+	{ .compatible = "ti,am43", .data = &am4x_soc_data, },
 	{ .compatible = "ti,dra7", .data = &dra7_soc_data },
 	{},
 };
@@ -205,6 +205,7 @@ static int ti_cpufreq_init(void)
 
 	np = of_find_node_by_path("/");
 	match = of_match_node(ti_cpufreq_of_match, np);
+	of_node_put(np);
 	if (!match)
 		return -ENODEV;
 
@@ -217,7 +218,8 @@ static int ti_cpufreq_init(void)
 	opp_data->cpu_dev = get_cpu_device(0);
 	if (!opp_data->cpu_dev) {
 		pr_err("%s: Failed to get device for CPU0\n", __func__);
-		return -ENODEV;
+		ret = ENODEV;
+		goto free_opp_data;
 	}
 
 	opp_data->opp_node = dev_pm_opp_of_get_opp_desc_node(opp_data->cpu_dev);
@@ -262,6 +264,8 @@ register_cpufreq_dt:
 
 fail_put_node:
 	of_node_put(opp_data->opp_node);
+free_opp_data:
+	kfree(opp_data);
 
 	return ret;
 }
diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c
index 87e5bdc5ec74..53237289e606 100644
--- a/drivers/cpufreq/vexpress-spc-cpufreq.c
+++ b/drivers/cpufreq/vexpress-spc-cpufreq.c
@@ -42,7 +42,7 @@ static int ve_spc_get_transition_latency(struct device *cpu_dev)
 	return 1000000; /* 1 ms */
 }
 
-static struct cpufreq_arm_bL_ops ve_spc_cpufreq_ops = {
+static const struct cpufreq_arm_bL_ops ve_spc_cpufreq_ops = {
 	.name	= "vexpress-spc",
 	.get_transition_latency = ve_spc_get_transition_latency,
 	.init_opp_table = ve_spc_init_opp_table,
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index 0b67a05a7aae..9d7176cee3d3 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for cpuidle.
 #
diff --git a/drivers/cpuidle/cpuidle-arm.c b/drivers/cpuidle/cpuidle-arm.c
index 7080c384ad5d..ddee1b601b89 100644
--- a/drivers/cpuidle/cpuidle-arm.c
+++ b/drivers/cpuidle/cpuidle-arm.c
@@ -72,90 +72,115 @@ static const struct of_device_id arm_idle_state_match[] __initconst = {
 };
 
 /*
- * arm_idle_init
+ * arm_idle_init_cpu
  *
  * Registers the arm specific cpuidle driver with the cpuidle
  * framework. It relies on core code to parse the idle states
  * and initialize them using driver data structures accordingly.
  */
-static int __init arm_idle_init(void)
+static int __init arm_idle_init_cpu(int cpu)
 {
-	int cpu, ret;
+	int ret;
 	struct cpuidle_driver *drv;
 	struct cpuidle_device *dev;
 
-	for_each_possible_cpu(cpu) {
+	drv = kmemdup(&arm_idle_driver, sizeof(*drv), GFP_KERNEL);
+	if (!drv)
+		return -ENOMEM;
 
-		drv = kmemdup(&arm_idle_driver, sizeof(*drv), GFP_KERNEL);
-		if (!drv) {
-			ret = -ENOMEM;
-			goto out_fail;
-		}
-
-		drv->cpumask = (struct cpumask *)cpumask_of(cpu);
-
-		/*
-		 * Initialize idle states data, starting at index 1.  This
-		 * driver is DT only, if no DT idle states are detected (ret
-		 * == 0) let the driver initialization fail accordingly since
-		 * there is no reason to initialize the idle driver if only
-		 * wfi is supported.
-		 */
-		ret = dt_init_idle_driver(drv, arm_idle_state_match, 1);
-		if (ret <= 0) {
-			ret = ret ? : -ENODEV;
-			goto out_fail;
-		}
+	drv->cpumask = (struct cpumask *)cpumask_of(cpu);
 
-		ret = cpuidle_register_driver(drv);
-		if (ret) {
-			pr_err("Failed to register cpuidle driver\n");
-			goto out_fail;
-		}
-
-		/*
-		 * Call arch CPU operations in order to initialize
-		 * idle states suspend back-end specific data
-		 */
-		ret = arm_cpuidle_init(cpu);
-
-		/*
-		 * Skip the cpuidle device initialization if the reported
-		 * failure is a HW misconfiguration/breakage (-ENXIO).
-		 */
-		if (ret == -ENXIO)
-			continue;
-
-		if (ret) {
-			pr_err("CPU %d failed to init idle CPU ops\n", cpu);
-			goto out_fail;
-		}
+	/*
+	 * Initialize idle states data, starting at index 1.  This
+	 * driver is DT only, if no DT idle states are detected (ret
+	 * == 0) let the driver initialization fail accordingly since
+	 * there is no reason to initialize the idle driver if only
+	 * wfi is supported.
+	 */
+	ret = dt_init_idle_driver(drv, arm_idle_state_match, 1);
+	if (ret <= 0) {
+		ret = ret ? : -ENODEV;
+		goto out_kfree_drv;
+	}
 
-		dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-		if (!dev) {
-			pr_err("Failed to allocate cpuidle device\n");
-			ret = -ENOMEM;
-			goto out_fail;
-		}
-		dev->cpu = cpu;
-
-		ret = cpuidle_register_device(dev);
-		if (ret) {
-			pr_err("Failed to register cpuidle device for CPU %d\n",
-			       cpu);
-			kfree(dev);
+	ret = cpuidle_register_driver(drv);
+	if (ret) {
+		pr_err("Failed to register cpuidle driver\n");
+		goto out_kfree_drv;
+	}
+
+	/*
+	 * Call arch CPU operations in order to initialize
+	 * idle states suspend back-end specific data
+	 */
+	ret = arm_cpuidle_init(cpu);
+
+	/*
+	 * Skip the cpuidle device initialization if the reported
+	 * failure is a HW misconfiguration/breakage (-ENXIO).
+	 */
+	if (ret == -ENXIO)
+		return 0;
+
+	if (ret) {
+		pr_err("CPU %d failed to init idle CPU ops\n", cpu);
+		goto out_unregister_drv;
+	}
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		pr_err("Failed to allocate cpuidle device\n");
+		ret = -ENOMEM;
+		goto out_unregister_drv;
+	}
+	dev->cpu = cpu;
+
+	ret = cpuidle_register_device(dev);
+	if (ret) {
+		pr_err("Failed to register cpuidle device for CPU %d\n",
+		       cpu);
+		goto out_kfree_dev;
+	}
+
+	return 0;
+
+out_kfree_dev:
+	kfree(dev);
+out_unregister_drv:
+	cpuidle_unregister_driver(drv);
+out_kfree_drv:
+	kfree(drv);
+	return ret;
+}
+
+/*
+ * arm_idle_init - Initializes arm cpuidle driver
+ *
+ * Initializes arm cpuidle driver for all CPUs, if any CPU fails
+ * to register cpuidle driver then rollback to cancel all CPUs
+ * registeration.
+ */
+static int __init arm_idle_init(void)
+{
+	int cpu, ret;
+	struct cpuidle_driver *drv;
+	struct cpuidle_device *dev;
+
+	for_each_possible_cpu(cpu) {
+		ret = arm_idle_init_cpu(cpu);
+		if (ret)
 			goto out_fail;
-		}
 	}
 
 	return 0;
+
 out_fail:
 	while (--cpu >= 0) {
 		dev = per_cpu(cpuidle_devices, cpu);
+		drv = cpuidle_get_cpu_driver(dev);
 		cpuidle_unregister_device(dev);
-		kfree(dev);
-		drv = cpuidle_get_driver();
 		cpuidle_unregister_driver(drv);
+		kfree(dev);
 		kfree(drv);
 	}
 
diff --git a/drivers/cpuidle/cpuidle-cps.c b/drivers/cpuidle/cpuidle-cps.c
index 12b9145913de..dac8ff6391fa 100644
--- a/drivers/cpuidle/cpuidle-cps.c
+++ b/drivers/cpuidle/cpuidle-cps.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2014 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -37,7 +37,7 @@ static int cps_nc_enter(struct cpuidle_device *dev,
 	 * TODO: don't treat core 0 specially, just prevent the final core
 	 * TODO: remap interrupt affinity temporarily
 	 */
-	if (!cpu_data[dev->cpu].core && (index > STATE_NC_WAIT))
+	if (cpus_are_siblings(0, dev->cpu) && (index > STATE_NC_WAIT))
 		index = STATE_NC_WAIT;
 
 	/* Select the appropriate cps_pm_state */
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 42896a67aeae..ed6531f075c6 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  cpuidle-powernv - idle state cpuidle driver.
  *  Adapted from drivers/cpuidle/cpuidle-pseries
diff --git a/drivers/cpuidle/cpuidle-pseries.c b/drivers/cpuidle/cpuidle-pseries.c
index e9b3853d93ea..a187a39fb866 100644
--- a/drivers/cpuidle/cpuidle-pseries.c
+++ b/drivers/cpuidle/cpuidle-pseries.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  cpuidle-pseries - idle state cpuidle driver.
  *  Adapted from drivers/idle/intel_idle.c and
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 484cc8909d5c..68a16827f45f 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -208,6 +208,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
 			return -EBUSY;
 		}
 		target_state = &drv->states[index];
+		broadcast = false;
 	}
 
 	/* Take note of the planned idle state. */
@@ -387,9 +388,12 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
 	if (dev->enabled)
 		return 0;
 
+	if (!cpuidle_curr_governor)
+		return -EIO;
+
 	drv = cpuidle_get_cpu_driver(dev);
 
-	if (!drv || !cpuidle_curr_governor)
+	if (!drv)
 		return -EIO;
 
 	if (!dev->registered)
@@ -399,9 +403,11 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
 	if (ret)
 		return ret;
 
-	if (cpuidle_curr_governor->enable &&
-	    (ret = cpuidle_curr_governor->enable(drv, dev)))
-		goto fail_sysfs;
+	if (cpuidle_curr_governor->enable) {
+		ret = cpuidle_curr_governor->enable(drv, dev);
+		if (ret)
+			goto fail_sysfs;
+	}
 
 	smp_wmb();
 
diff --git a/drivers/cpuidle/cpuidle.h b/drivers/cpuidle/cpuidle.h
index f87f399b0540..2965ab32a583 100644
--- a/drivers/cpuidle/cpuidle.h
+++ b/drivers/cpuidle/cpuidle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * cpuidle.h - The internal header file
  */
diff --git a/drivers/cpuidle/dt_idle_states.h b/drivers/cpuidle/dt_idle_states.h
index 4818134bc65b..14ae88cef1de 100644
--- a/drivers/cpuidle/dt_idle_states.h
+++ b/drivers/cpuidle/dt_idle_states.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_IDLE_STATES
 #define __DT_IDLE_STATES
 
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index ce1a2ffffb2a..1ad8745fd6d6 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -17,6 +17,7 @@
 #include <linux/pm_qos.h>
 #include <linux/jiffies.h>
 #include <linux/tick.h>
+#include <linux/cpu.h>
 
 #include <asm/io.h>
 #include <linux/uaccess.h>
@@ -67,10 +68,16 @@ static int ladder_select_state(struct cpuidle_driver *drv,
 				struct cpuidle_device *dev)
 {
 	struct ladder_device *ldev = this_cpu_ptr(&ladder_devices);
+	struct device *device = get_cpu_device(dev->cpu);
 	struct ladder_device_state *last_state;
 	int last_residency, last_idx = ldev->last_state_idx;
 	int first_idx = drv->states[0].flags & CPUIDLE_FLAG_POLLING ? 1 : 0;
 	int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
+	int resume_latency = dev_pm_qos_raw_read_value(device);
+
+	if (resume_latency < latency_req &&
+	    resume_latency != PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
+		latency_req = resume_latency;
 
 	/* Special case when user has set very strict latency requirement */
 	if (unlikely(latency_req == 0)) {
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 48eaf2879228..aa390404e85f 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -298,8 +298,8 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
 		data->needs_update = 0;
 	}
 
-	/* resume_latency is 0 means no restriction */
-	if (resume_latency && resume_latency < latency_req)
+	if (resume_latency < latency_req &&
+	    resume_latency != PM_QOS_RESUME_LATENCY_NO_CONSTRAINT)
 		latency_req = resume_latency;
 
 	/* Special case when user has set very strict latency requirement */
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index fe33c199fc1a..47ec920d5b71 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -199,22 +199,8 @@ config CRYPTO_CRC32_S390
 
 	  It is available with IBM z13 or later.
 
-config CRYPTO_DEV_MV_CESA
-	tristate "Marvell's Cryptographic Engine"
-	depends on PLAT_ORION
-	select CRYPTO_AES
-	select CRYPTO_BLKCIPHER
-	select CRYPTO_HASH
-	select SRAM
-	help
-	  This driver allows you to utilize the Cryptographic Engines and
-	  Security Accelerator (CESA) which can be found on the Marvell Orion
-	  and Kirkwood SoCs, such as QNAP's TS-209.
-
-	  Currently the driver supports AES in ECB and CBC mode without DMA.
-
 config CRYPTO_DEV_MARVELL_CESA
-	tristate "New Marvell's Cryptographic Engine driver"
+	tristate "Marvell's Cryptographic Engine driver"
 	depends on PLAT_ORION || ARCH_MVEBU
 	select CRYPTO_AES
 	select CRYPTO_DES
@@ -223,12 +209,10 @@ config CRYPTO_DEV_MARVELL_CESA
 	select SRAM
 	help
 	  This driver allows you to utilize the Cryptographic Engines and
-	  Security Accelerator (CESA) which can be found on the Armada 370.
+	  Security Accelerator (CESA) which can be found on MVEBU and ORION
+	  platforms.
 	  This driver supports CPU offload through DMA transfers.
 
-	  This driver is aimed at replacing the mv_cesa driver. This will only
-	  happen once it has received proper testing.
-
 config CRYPTO_DEV_NIAGARA2
        tristate "Niagara2 Stream Processing Unit driver"
        select CRYPTO_DES
@@ -315,6 +299,10 @@ config CRYPTO_DEV_PPC4XX
 	tristate "Driver AMCC PPC4xx crypto accelerator"
 	depends on PPC && 4xx
 	select CRYPTO_HASH
+	select CRYPTO_AEAD
+	select CRYPTO_AES
+	select CRYPTO_CCM
+	select CRYPTO_GCM
 	select CRYPTO_BLKCIPHER
 	help
 	  This option allows you to have support for AMCC crypto acceleration.
@@ -439,6 +427,20 @@ config CRYPTO_DEV_S5P
 	  Select this to offload Samsung S5PV210 or S5PC110, Exynos from AES
 	  algorithms execution.
 
+config CRYPTO_DEV_EXYNOS_HASH
+	bool "Support for Samsung Exynos HASH accelerator"
+	depends on CRYPTO_DEV_S5P
+	depends on !CRYPTO_DEV_EXYNOS_RNG && CRYPTO_DEV_EXYNOS_RNG!=m
+	select CRYPTO_SHA1
+	select CRYPTO_MD5
+	select CRYPTO_SHA256
+	help
+	  Select this to offload Exynos from HASH MD5/SHA1/SHA256.
+	  This will select software SHA1, MD5 and SHA256 as they are
+	  needed for small and zero-size messages.
+	  HASH algorithms will be disabled if EXYNOS_RNG
+	  is enabled due to hw conflict.
+
 config CRYPTO_DEV_NX
 	bool "Support for IBM PowerPC Nest (NX) cryptographic acceleration"
 	depends on PPC64
diff --git a/drivers/crypto/Makefile b/drivers/crypto/Makefile
index 808432b44c6b..2513d13ea2c4 100644
--- a/drivers/crypto/Makefile
+++ b/drivers/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_ATMEL_AES) += atmel-aes.o
 obj-$(CONFIG_CRYPTO_DEV_ATMEL_SHA) += atmel-sha.o
 obj-$(CONFIG_CRYPTO_DEV_ATMEL_TDES) += atmel-tdes.o
@@ -14,7 +15,6 @@ obj-$(CONFIG_CRYPTO_DEV_GEODE) += geode-aes.o
 obj-$(CONFIG_CRYPTO_DEV_HIFN_795X) += hifn_795x.o
 obj-$(CONFIG_CRYPTO_DEV_IMGTEC_HASH) += img-hash.o
 obj-$(CONFIG_CRYPTO_DEV_IXP4XX) += ixp4xx_crypto.o
-obj-$(CONFIG_CRYPTO_DEV_MV_CESA) += mv_cesa.o
 obj-$(CONFIG_CRYPTO_DEV_MARVELL_CESA) += marvell/
 obj-$(CONFIG_CRYPTO_DEV_MEDIATEK) += mediatek/
 obj-$(CONFIG_CRYPTO_DEV_MXS_DCP) += mxs-dcp.o
diff --git a/drivers/crypto/amcc/Makefile b/drivers/crypto/amcc/Makefile
index b95539928fdf..e33c185fc163 100644
--- a/drivers/crypto/amcc/Makefile
+++ b/drivers/crypto/amcc/Makefile
@@ -1,3 +1,3 @@
 obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += crypto4xx.o
-crypto4xx-y :=  crypto4xx_core.o crypto4xx_alg.o crypto4xx_sa.o
+crypto4xx-y :=  crypto4xx_core.o crypto4xx_alg.o
 crypto4xx-$(CONFIG_HW_RANDOM_PPC4XX) += crypto4xx_trng.o
diff --git a/drivers/crypto/amcc/crypto4xx_alg.c b/drivers/crypto/amcc/crypto4xx_alg.c
index 4afca3968773..eeaf27859d80 100644
--- a/drivers/crypto/amcc/crypto4xx_alg.c
+++ b/drivers/crypto/amcc/crypto4xx_alg.c
@@ -26,11 +26,14 @@
 #include <crypto/internal/hash.h>
 #include <linux/dma-mapping.h>
 #include <crypto/algapi.h>
+#include <crypto/aead.h>
 #include <crypto/aes.h>
+#include <crypto/gcm.h>
 #include <crypto/sha.h>
+#include <crypto/ctr.h>
 #include "crypto4xx_reg_def.h"
-#include "crypto4xx_sa.h"
 #include "crypto4xx_core.h"
+#include "crypto4xx_sa.h"
 
 static void set_dynamic_sa_command_0(struct dynamic_sa_ctl *sa, u32 save_h,
 				     u32 save_iv, u32 ld_h, u32 ld_iv,
@@ -62,6 +65,7 @@ static void set_dynamic_sa_command_1(struct dynamic_sa_ctl *sa, u32 cm,
 	sa->sa_command_1.bf.crypto_mode9_8 = cm & 3;
 	sa->sa_command_1.bf.feedback_mode = cfb,
 	sa->sa_command_1.bf.sa_rev = 1;
+	sa->sa_command_1.bf.hmac_muting = hmac_mc;
 	sa->sa_command_1.bf.extended_seq_num = esn;
 	sa->sa_command_1.bf.seq_num_mask = sn_mask;
 	sa->sa_command_1.bf.mutable_bit_proc = mute;
@@ -73,29 +77,29 @@ static void set_dynamic_sa_command_1(struct dynamic_sa_ctl *sa, u32 cm,
 int crypto4xx_encrypt(struct ablkcipher_request *req)
 {
 	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	unsigned int ivlen = crypto_ablkcipher_ivsize(
+		crypto_ablkcipher_reqtfm(req));
+	__le32 iv[ivlen];
 
-	ctx->direction = DIR_OUTBOUND;
-	ctx->hash_final = 0;
-	ctx->is_hash = 0;
-	ctx->pd_ctl = 0x1;
+	if (ivlen)
+		crypto4xx_memcpy_to_le32(iv, req->info, ivlen);
 
 	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
-				  req->nbytes, req->info,
-				  get_dynamic_sa_iv_size(ctx));
+		req->nbytes, iv, ivlen, ctx->sa_out, ctx->sa_len, 0);
 }
 
 int crypto4xx_decrypt(struct ablkcipher_request *req)
 {
 	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	unsigned int ivlen = crypto_ablkcipher_ivsize(
+		crypto_ablkcipher_reqtfm(req));
+	__le32 iv[ivlen];
 
-	ctx->direction = DIR_INBOUND;
-	ctx->hash_final = 0;
-	ctx->is_hash = 0;
-	ctx->pd_ctl = 1;
+	if (ivlen)
+		crypto4xx_memcpy_to_le32(iv, req->info, ivlen);
 
 	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
-				  req->nbytes, req->info,
-				  get_dynamic_sa_iv_size(ctx));
+		req->nbytes, iv, ivlen, ctx->sa_in, ctx->sa_len, 0);
 }
 
 /**
@@ -120,23 +124,15 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher,
 	}
 
 	/* Create SA */
-	if (ctx->sa_in_dma_addr || ctx->sa_out_dma_addr)
+	if (ctx->sa_in || ctx->sa_out)
 		crypto4xx_free_sa(ctx);
 
 	rc = crypto4xx_alloc_sa(ctx, SA_AES128_LEN + (keylen-16) / 4);
 	if (rc)
 		return rc;
 
-	if (ctx->state_record_dma_addr == 0) {
-		rc = crypto4xx_alloc_state_record(ctx);
-		if (rc) {
-			crypto4xx_free_sa(ctx);
-			return rc;
-		}
-	}
 	/* Setup SA */
-	sa = (struct dynamic_sa_ctl *) ctx->sa_in;
-	ctx->hash_final = 0;
+	sa = ctx->sa_in;
 
 	set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, SA_NOT_SAVE_IV,
 				 SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
@@ -150,18 +146,13 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher,
 				 SA_SEQ_MASK_OFF, SA_MC_ENABLE,
 				 SA_NOT_COPY_PAD, SA_NOT_COPY_PAYLOAD,
 				 SA_NOT_COPY_HDR);
-	crypto4xx_memcpy_le(ctx->sa_in + get_dynamic_sa_offset_key_field(ctx),
-			    key, keylen);
-	sa->sa_contents = SA_AES_CONTENTS | (keylen << 2);
+	crypto4xx_memcpy_to_le32(get_dynamic_sa_key_field(sa),
+				 key, keylen);
+	sa->sa_contents.w = SA_AES_CONTENTS | (keylen << 2);
 	sa->sa_command_1.bf.key_len = keylen >> 3;
-	ctx->is_hash = 0;
-	ctx->direction = DIR_INBOUND;
-	memcpy(ctx->sa_in + get_dynamic_sa_offset_state_ptr_field(ctx),
-			(void *)&ctx->state_record_dma_addr, 4);
-	ctx->offset_to_sr_ptr = get_dynamic_sa_offset_state_ptr_field(ctx);
 
 	memcpy(ctx->sa_out, ctx->sa_in, ctx->sa_len * 4);
-	sa = (struct dynamic_sa_ctl *) ctx->sa_out;
+	sa = ctx->sa_out;
 	sa->sa_command_0.bf.dir = DIR_OUTBOUND;
 
 	return 0;
@@ -174,6 +165,396 @@ int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,
 				    CRYPTO_FEEDBACK_MODE_NO_FB);
 }
 
+int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen)
+{
+	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_CFB,
+				    CRYPTO_FEEDBACK_MODE_128BIT_CFB);
+}
+
+int crypto4xx_setkey_aes_ecb(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen)
+{
+	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_ECB,
+				    CRYPTO_FEEDBACK_MODE_NO_FB);
+}
+
+int crypto4xx_setkey_aes_ofb(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen)
+{
+	return crypto4xx_setkey_aes(cipher, key, keylen, CRYPTO_MODE_OFB,
+				    CRYPTO_FEEDBACK_MODE_64BIT_OFB);
+}
+
+int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen)
+{
+	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+	int rc;
+
+	rc = crypto4xx_setkey_aes(cipher, key, keylen - CTR_RFC3686_NONCE_SIZE,
+		CRYPTO_MODE_CTR, CRYPTO_FEEDBACK_MODE_NO_FB);
+	if (rc)
+		return rc;
+
+	ctx->iv_nonce = cpu_to_le32p((u32 *)&key[keylen -
+						 CTR_RFC3686_NONCE_SIZE]);
+
+	return 0;
+}
+
+int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req)
+{
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	__le32 iv[AES_IV_SIZE / 4] = {
+		ctx->iv_nonce,
+		cpu_to_le32p((u32 *) req->info),
+		cpu_to_le32p((u32 *) (req->info + 4)),
+		cpu_to_le32(1) };
+
+	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
+				  req->nbytes, iv, AES_IV_SIZE,
+				  ctx->sa_out, ctx->sa_len, 0);
+}
+
+int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req)
+{
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	__le32 iv[AES_IV_SIZE / 4] = {
+		ctx->iv_nonce,
+		cpu_to_le32p((u32 *) req->info),
+		cpu_to_le32p((u32 *) (req->info + 4)),
+		cpu_to_le32(1) };
+
+	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
+				  req->nbytes, iv, AES_IV_SIZE,
+				  ctx->sa_out, ctx->sa_len, 0);
+}
+
+static inline bool crypto4xx_aead_need_fallback(struct aead_request *req,
+						bool is_ccm, bool decrypt)
+{
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+
+	/* authsize has to be a multiple of 4 */
+	if (aead->authsize & 3)
+		return true;
+
+	/*
+	 * hardware does not handle cases where cryptlen
+	 * is less than a block
+	 */
+	if (req->cryptlen < AES_BLOCK_SIZE)
+		return true;
+
+	/* assoc len needs to be a multiple of 4 */
+	if (req->assoclen & 0x3)
+		return true;
+
+	/* CCM supports only counter field length of 2 and 4 bytes */
+	if (is_ccm && !(req->iv[0] == 1 || req->iv[0] == 3))
+		return true;
+
+	/* CCM - fix CBC MAC mismatch in special case */
+	if (is_ccm && decrypt && !req->assoclen)
+		return true;
+
+	return false;
+}
+
+static int crypto4xx_aead_fallback(struct aead_request *req,
+	struct crypto4xx_ctx *ctx, bool do_decrypt)
+{
+	char aead_req_data[sizeof(struct aead_request) +
+			   crypto_aead_reqsize(ctx->sw_cipher.aead)]
+		__aligned(__alignof__(struct aead_request));
+
+	struct aead_request *subreq = (void *) aead_req_data;
+
+	memset(subreq, 0, sizeof(aead_req_data));
+
+	aead_request_set_tfm(subreq, ctx->sw_cipher.aead);
+	aead_request_set_callback(subreq, req->base.flags,
+				  req->base.complete, req->base.data);
+	aead_request_set_crypt(subreq, req->src, req->dst, req->cryptlen,
+			       req->iv);
+	aead_request_set_ad(subreq, req->assoclen);
+	return do_decrypt ? crypto_aead_decrypt(subreq) :
+			    crypto_aead_encrypt(subreq);
+}
+
+static int crypto4xx_setup_fallback(struct crypto4xx_ctx *ctx,
+				    struct crypto_aead *cipher,
+				    const u8 *key,
+				    unsigned int keylen)
+{
+	int rc;
+
+	crypto_aead_clear_flags(ctx->sw_cipher.aead, CRYPTO_TFM_REQ_MASK);
+	crypto_aead_set_flags(ctx->sw_cipher.aead,
+		crypto_aead_get_flags(cipher) & CRYPTO_TFM_REQ_MASK);
+	rc = crypto_aead_setkey(ctx->sw_cipher.aead, key, keylen);
+	crypto_aead_clear_flags(cipher, CRYPTO_TFM_RES_MASK);
+	crypto_aead_set_flags(cipher,
+		crypto_aead_get_flags(ctx->sw_cipher.aead) &
+			CRYPTO_TFM_RES_MASK);
+
+	return rc;
+}
+
+/**
+ * AES-CCM Functions
+ */
+
+int crypto4xx_setkey_aes_ccm(struct crypto_aead *cipher, const u8 *key,
+			     unsigned int keylen)
+{
+	struct crypto_tfm *tfm = crypto_aead_tfm(cipher);
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct dynamic_sa_ctl *sa;
+	int rc = 0;
+
+	rc = crypto4xx_setup_fallback(ctx, cipher, key, keylen);
+	if (rc)
+		return rc;
+
+	if (ctx->sa_in || ctx->sa_out)
+		crypto4xx_free_sa(ctx);
+
+	rc = crypto4xx_alloc_sa(ctx, SA_AES128_CCM_LEN + (keylen - 16) / 4);
+	if (rc)
+		return rc;
+
+	/* Setup SA */
+	sa = (struct dynamic_sa_ctl *) ctx->sa_in;
+	sa->sa_contents.w = SA_AES_CCM_CONTENTS | (keylen << 2);
+
+	set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, SA_NOT_SAVE_IV,
+				 SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
+				 SA_NO_HEADER_PROC, SA_HASH_ALG_CBC_MAC,
+				 SA_CIPHER_ALG_AES,
+				 SA_PAD_TYPE_ZERO, SA_OP_GROUP_BASIC,
+				 SA_OPCODE_HASH_DECRYPT, DIR_INBOUND);
+
+	set_dynamic_sa_command_1(sa, CRYPTO_MODE_CTR, SA_HASH_MODE_HASH,
+				 CRYPTO_FEEDBACK_MODE_NO_FB, SA_EXTENDED_SN_OFF,
+				 SA_SEQ_MASK_OFF, SA_MC_ENABLE,
+				 SA_NOT_COPY_PAD, SA_COPY_PAYLOAD,
+				 SA_NOT_COPY_HDR);
+
+	sa->sa_command_1.bf.key_len = keylen >> 3;
+
+	crypto4xx_memcpy_to_le32(get_dynamic_sa_key_field(sa), key, keylen);
+
+	memcpy(ctx->sa_out, ctx->sa_in, ctx->sa_len * 4);
+	sa = (struct dynamic_sa_ctl *) ctx->sa_out;
+
+	set_dynamic_sa_command_0(sa, SA_SAVE_HASH, SA_NOT_SAVE_IV,
+				 SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
+				 SA_NO_HEADER_PROC, SA_HASH_ALG_CBC_MAC,
+				 SA_CIPHER_ALG_AES,
+				 SA_PAD_TYPE_ZERO, SA_OP_GROUP_BASIC,
+				 SA_OPCODE_ENCRYPT_HASH, DIR_OUTBOUND);
+
+	set_dynamic_sa_command_1(sa, CRYPTO_MODE_CTR, SA_HASH_MODE_HASH,
+				 CRYPTO_FEEDBACK_MODE_NO_FB, SA_EXTENDED_SN_OFF,
+				 SA_SEQ_MASK_OFF, SA_MC_ENABLE,
+				 SA_COPY_PAD, SA_COPY_PAYLOAD,
+				 SA_NOT_COPY_HDR);
+
+	sa->sa_command_1.bf.key_len = keylen >> 3;
+	return 0;
+}
+
+static int crypto4xx_crypt_aes_ccm(struct aead_request *req, bool decrypt)
+{
+	struct crypto4xx_ctx *ctx  = crypto_tfm_ctx(req->base.tfm);
+	struct crypto_aead *aead = crypto_aead_reqtfm(req);
+	unsigned int len = req->cryptlen;
+	__le32 iv[16];
+	u32 tmp_sa[ctx->sa_len * 4];
+	struct dynamic_sa_ctl *sa = (struct dynamic_sa_ctl *)tmp_sa;
+
+	if (crypto4xx_aead_need_fallback(req, true, decrypt))
+		return crypto4xx_aead_fallback(req, ctx, decrypt);
+
+	if (decrypt)
+		len -= crypto_aead_authsize(aead);
+
+	memcpy(tmp_sa, decrypt ? ctx->sa_in : ctx->sa_out, sizeof(tmp_sa));
+	sa->sa_command_0.bf.digest_len = crypto_aead_authsize(aead) >> 2;
+
+	if (req->iv[0] == 1) {
+		/* CRYPTO_MODE_AES_ICM */
+		sa->sa_command_1.bf.crypto_mode9_8 = 1;
+	}
+
+	iv[3] = cpu_to_le32(0);
+	crypto4xx_memcpy_to_le32(iv, req->iv, 16 - (req->iv[0] + 1));
+
+	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
+				  len, iv, sizeof(iv),
+				  sa, ctx->sa_len, req->assoclen);
+}
+
+int crypto4xx_encrypt_aes_ccm(struct aead_request *req)
+{
+	return crypto4xx_crypt_aes_ccm(req, false);
+}
+
+int crypto4xx_decrypt_aes_ccm(struct aead_request *req)
+{
+	return crypto4xx_crypt_aes_ccm(req, true);
+}
+
+int crypto4xx_setauthsize_aead(struct crypto_aead *cipher,
+			       unsigned int authsize)
+{
+	struct crypto_tfm *tfm = crypto_aead_tfm(cipher);
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	return crypto_aead_setauthsize(ctx->sw_cipher.aead, authsize);
+}
+
+/**
+ * AES-GCM Functions
+ */
+
+static int crypto4xx_aes_gcm_validate_keylen(unsigned int keylen)
+{
+	switch (keylen) {
+	case 16:
+	case 24:
+	case 32:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int crypto4xx_compute_gcm_hash_key_sw(__le32 *hash_start, const u8 *key,
+					     unsigned int keylen)
+{
+	struct crypto_cipher *aes_tfm = NULL;
+	uint8_t src[16] = { 0 };
+	int rc = 0;
+
+	aes_tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC |
+				      CRYPTO_ALG_NEED_FALLBACK);
+	if (IS_ERR(aes_tfm)) {
+		rc = PTR_ERR(aes_tfm);
+		pr_warn("could not load aes cipher driver: %d\n", rc);
+		return rc;
+	}
+
+	rc = crypto_cipher_setkey(aes_tfm, key, keylen);
+	if (rc) {
+		pr_err("setkey() failed: %d\n", rc);
+		goto out;
+	}
+
+	crypto_cipher_encrypt_one(aes_tfm, src, src);
+	crypto4xx_memcpy_to_le32(hash_start, src, 16);
+out:
+	crypto_free_cipher(aes_tfm);
+	return rc;
+}
+
+int crypto4xx_setkey_aes_gcm(struct crypto_aead *cipher,
+			     const u8 *key, unsigned int keylen)
+{
+	struct crypto_tfm *tfm = crypto_aead_tfm(cipher);
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct dynamic_sa_ctl *sa;
+	int    rc = 0;
+
+	if (crypto4xx_aes_gcm_validate_keylen(keylen) != 0) {
+		crypto_aead_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		return -EINVAL;
+	}
+
+	rc = crypto4xx_setup_fallback(ctx, cipher, key, keylen);
+	if (rc)
+		return rc;
+
+	if (ctx->sa_in || ctx->sa_out)
+		crypto4xx_free_sa(ctx);
+
+	rc = crypto4xx_alloc_sa(ctx, SA_AES128_GCM_LEN + (keylen - 16) / 4);
+	if (rc)
+		return rc;
+
+	sa  = (struct dynamic_sa_ctl *) ctx->sa_in;
+
+	sa->sa_contents.w = SA_AES_GCM_CONTENTS | (keylen << 2);
+	set_dynamic_sa_command_0(sa, SA_SAVE_HASH, SA_NOT_SAVE_IV,
+				 SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE,
+				 SA_NO_HEADER_PROC, SA_HASH_ALG_GHASH,
+				 SA_CIPHER_ALG_AES, SA_PAD_TYPE_ZERO,
+				 SA_OP_GROUP_BASIC, SA_OPCODE_HASH_DECRYPT,
+				 DIR_INBOUND);
+	set_dynamic_sa_command_1(sa, CRYPTO_MODE_CTR, SA_HASH_MODE_HASH,
+				 CRYPTO_FEEDBACK_MODE_NO_FB, SA_EXTENDED_SN_OFF,
+				 SA_SEQ_MASK_ON, SA_MC_DISABLE,
+				 SA_NOT_COPY_PAD, SA_COPY_PAYLOAD,
+				 SA_NOT_COPY_HDR);
+
+	sa->sa_command_1.bf.key_len = keylen >> 3;
+
+	crypto4xx_memcpy_to_le32(get_dynamic_sa_key_field(sa),
+				 key, keylen);
+
+	rc = crypto4xx_compute_gcm_hash_key_sw(get_dynamic_sa_inner_digest(sa),
+		key, keylen);
+	if (rc) {
+		pr_err("GCM hash key setting failed = %d\n", rc);
+		goto err;
+	}
+
+	memcpy(ctx->sa_out, ctx->sa_in, ctx->sa_len * 4);
+	sa = (struct dynamic_sa_ctl *) ctx->sa_out;
+	sa->sa_command_0.bf.dir = DIR_OUTBOUND;
+	sa->sa_command_0.bf.opcode = SA_OPCODE_ENCRYPT_HASH;
+
+	return 0;
+err:
+	crypto4xx_free_sa(ctx);
+	return rc;
+}
+
+static inline int crypto4xx_crypt_aes_gcm(struct aead_request *req,
+					  bool decrypt)
+{
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	unsigned int len = req->cryptlen;
+	__le32 iv[4];
+
+	if (crypto4xx_aead_need_fallback(req, false, decrypt))
+		return crypto4xx_aead_fallback(req, ctx, decrypt);
+
+	crypto4xx_memcpy_to_le32(iv, req->iv, GCM_AES_IV_SIZE);
+	iv[3] = cpu_to_le32(1);
+
+	if (decrypt)
+		len -= crypto_aead_authsize(crypto_aead_reqtfm(req));
+
+	return crypto4xx_build_pd(&req->base, ctx, req->src, req->dst,
+				  len, iv, sizeof(iv),
+				  decrypt ? ctx->sa_in : ctx->sa_out,
+				  ctx->sa_len, req->assoclen);
+}
+
+int crypto4xx_encrypt_aes_gcm(struct aead_request *req)
+{
+	return crypto4xx_crypt_aes_gcm(req, false);
+}
+
+int crypto4xx_decrypt_aes_gcm(struct aead_request *req)
+{
+	return crypto4xx_crypt_aes_gcm(req, true);
+}
+
 /**
  * HASH SHA1 Functions
  */
@@ -183,53 +564,39 @@ static int crypto4xx_hash_alg_init(struct crypto_tfm *tfm,
 				   unsigned char hm)
 {
 	struct crypto_alg *alg = tfm->__crt_alg;
-	struct crypto4xx_alg *my_alg = crypto_alg_to_crypto4xx_alg(alg);
+	struct crypto4xx_alg *my_alg;
 	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
-	struct dynamic_sa_ctl *sa;
-	struct dynamic_sa_hash160 *sa_in;
+	struct dynamic_sa_hash160 *sa;
 	int rc;
 
+	my_alg = container_of(__crypto_ahash_alg(alg), struct crypto4xx_alg,
+			      alg.u.hash);
 	ctx->dev   = my_alg->dev;
-	ctx->is_hash = 1;
-	ctx->hash_final = 0;
 
 	/* Create SA */
-	if (ctx->sa_in_dma_addr || ctx->sa_out_dma_addr)
+	if (ctx->sa_in || ctx->sa_out)
 		crypto4xx_free_sa(ctx);
 
 	rc = crypto4xx_alloc_sa(ctx, sa_len);
 	if (rc)
 		return rc;
 
-	if (ctx->state_record_dma_addr == 0) {
-		crypto4xx_alloc_state_record(ctx);
-		if (!ctx->state_record_dma_addr) {
-			crypto4xx_free_sa(ctx);
-			return -ENOMEM;
-		}
-	}
-
 	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
 				 sizeof(struct crypto4xx_ctx));
-	sa = (struct dynamic_sa_ctl *) ctx->sa_in;
-	set_dynamic_sa_command_0(sa, SA_SAVE_HASH, SA_NOT_SAVE_IV,
+	sa = (struct dynamic_sa_hash160 *)ctx->sa_in;
+	set_dynamic_sa_command_0(&sa->ctrl, SA_SAVE_HASH, SA_NOT_SAVE_IV,
 				 SA_NOT_LOAD_HASH, SA_LOAD_IV_FROM_SA,
 				 SA_NO_HEADER_PROC, ha, SA_CIPHER_ALG_NULL,
 				 SA_PAD_TYPE_ZERO, SA_OP_GROUP_BASIC,
 				 SA_OPCODE_HASH, DIR_INBOUND);
-	set_dynamic_sa_command_1(sa, 0, SA_HASH_MODE_HASH,
+	set_dynamic_sa_command_1(&sa->ctrl, 0, SA_HASH_MODE_HASH,
 				 CRYPTO_FEEDBACK_MODE_NO_FB, SA_EXTENDED_SN_OFF,
 				 SA_SEQ_MASK_OFF, SA_MC_ENABLE,
 				 SA_NOT_COPY_PAD, SA_NOT_COPY_PAYLOAD,
 				 SA_NOT_COPY_HDR);
-	ctx->direction = DIR_INBOUND;
-	sa->sa_contents = SA_HASH160_CONTENTS;
-	sa_in = (struct dynamic_sa_hash160 *) ctx->sa_in;
 	/* Need to zero hash digest in SA */
-	memset(sa_in->inner_digest, 0, sizeof(sa_in->inner_digest));
-	memset(sa_in->outer_digest, 0, sizeof(sa_in->outer_digest));
-	sa_in->state_ptr = ctx->state_record_dma_addr;
-	ctx->offset_to_sr_ptr = get_dynamic_sa_offset_state_ptr_field(ctx);
+	memset(sa->inner_digest, 0, sizeof(sa->inner_digest));
+	memset(sa->outer_digest, 0, sizeof(sa->outer_digest));
 
 	return 0;
 }
@@ -240,29 +607,27 @@ int crypto4xx_hash_init(struct ahash_request *req)
 	int ds;
 	struct dynamic_sa_ctl *sa;
 
-	sa = (struct dynamic_sa_ctl *) ctx->sa_in;
+	sa = ctx->sa_in;
 	ds = crypto_ahash_digestsize(
 			__crypto_ahash_cast(req->base.tfm));
 	sa->sa_command_0.bf.digest_len = ds >> 2;
 	sa->sa_command_0.bf.load_hash_state = SA_LOAD_HASH_FROM_SA;
-	ctx->is_hash = 1;
-	ctx->direction = DIR_INBOUND;
 
 	return 0;
 }
 
 int crypto4xx_hash_update(struct ahash_request *req)
 {
+	struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
 	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	struct scatterlist dst;
+	unsigned int ds = crypto_ahash_digestsize(ahash);
 
-	ctx->is_hash = 1;
-	ctx->hash_final = 0;
-	ctx->pd_ctl = 0x11;
-	ctx->direction = DIR_INBOUND;
+	sg_init_one(&dst, req->result, ds);
 
-	return crypto4xx_build_pd(&req->base, ctx, req->src,
-				  (struct scatterlist *) req->result,
-				  req->nbytes, NULL, 0);
+	return crypto4xx_build_pd(&req->base, ctx, req->src, &dst,
+				  req->nbytes, NULL, 0, ctx->sa_in,
+				  ctx->sa_len, 0);
 }
 
 int crypto4xx_hash_final(struct ahash_request *req)
@@ -272,15 +637,16 @@ int crypto4xx_hash_final(struct ahash_request *req)
 
 int crypto4xx_hash_digest(struct ahash_request *req)
 {
+	struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
 	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
+	struct scatterlist dst;
+	unsigned int ds = crypto_ahash_digestsize(ahash);
 
-	ctx->hash_final = 1;
-	ctx->pd_ctl = 0x11;
-	ctx->direction = DIR_INBOUND;
+	sg_init_one(&dst, req->result, ds);
 
-	return crypto4xx_build_pd(&req->base, ctx, req->src,
-				  (struct scatterlist *) req->result,
-				  req->nbytes, NULL, 0);
+	return crypto4xx_build_pd(&req->base, ctx, req->src, &dst,
+				  req->nbytes, NULL, 0, ctx->sa_in,
+				  ctx->sa_len, 0);
 }
 
 /**
@@ -291,5 +657,3 @@ int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm)
 	return crypto4xx_hash_alg_init(tfm, SA_HASH160_LEN, SA_HASH_ALG_SHA1,
 				       SA_HASH_MODE_HASH);
 }
-
-
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
index 65dc78b91dea..c44954e274bc 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -35,8 +35,14 @@
 #include <asm/dcr.h>
 #include <asm/dcr-regs.h>
 #include <asm/cacheflush.h>
+#include <crypto/aead.h>
 #include <crypto/aes.h>
+#include <crypto/ctr.h>
+#include <crypto/gcm.h>
 #include <crypto/sha.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/internal/aead.h>
+#include <crypto/internal/skcipher.h>
 #include "crypto4xx_reg_def.h"
 #include "crypto4xx_core.h"
 #include "crypto4xx_sa.h"
@@ -127,21 +133,17 @@ static void crypto4xx_hw_init(struct crypto4xx_device *dev)
 
 int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size)
 {
-	ctx->sa_in = dma_alloc_coherent(ctx->dev->core_dev->device, size * 4,
-					&ctx->sa_in_dma_addr, GFP_ATOMIC);
+	ctx->sa_in = kzalloc(size * 4, GFP_ATOMIC);
 	if (ctx->sa_in == NULL)
 		return -ENOMEM;
 
-	ctx->sa_out = dma_alloc_coherent(ctx->dev->core_dev->device, size * 4,
-					 &ctx->sa_out_dma_addr, GFP_ATOMIC);
+	ctx->sa_out = kzalloc(size * 4, GFP_ATOMIC);
 	if (ctx->sa_out == NULL) {
-		dma_free_coherent(ctx->dev->core_dev->device, size * 4,
-				  ctx->sa_in, ctx->sa_in_dma_addr);
+		kfree(ctx->sa_in);
+		ctx->sa_in = NULL;
 		return -ENOMEM;
 	}
 
-	memset(ctx->sa_in, 0, size * 4);
-	memset(ctx->sa_out, 0, size * 4);
 	ctx->sa_len = size;
 
 	return 0;
@@ -149,40 +151,13 @@ int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size)
 
 void crypto4xx_free_sa(struct crypto4xx_ctx *ctx)
 {
-	if (ctx->sa_in != NULL)
-		dma_free_coherent(ctx->dev->core_dev->device, ctx->sa_len * 4,
-				  ctx->sa_in, ctx->sa_in_dma_addr);
-	if (ctx->sa_out != NULL)
-		dma_free_coherent(ctx->dev->core_dev->device, ctx->sa_len * 4,
-				  ctx->sa_out, ctx->sa_out_dma_addr);
-
-	ctx->sa_in_dma_addr = 0;
-	ctx->sa_out_dma_addr = 0;
+	kfree(ctx->sa_in);
+	ctx->sa_in = NULL;
+	kfree(ctx->sa_out);
+	ctx->sa_out = NULL;
 	ctx->sa_len = 0;
 }
 
-u32 crypto4xx_alloc_state_record(struct crypto4xx_ctx *ctx)
-{
-	ctx->state_record = dma_alloc_coherent(ctx->dev->core_dev->device,
-				sizeof(struct sa_state_record),
-				&ctx->state_record_dma_addr, GFP_ATOMIC);
-	if (!ctx->state_record_dma_addr)
-		return -ENOMEM;
-	memset(ctx->state_record, 0, sizeof(struct sa_state_record));
-
-	return 0;
-}
-
-void crypto4xx_free_state_record(struct crypto4xx_ctx *ctx)
-{
-	if (ctx->state_record != NULL)
-		dma_free_coherent(ctx->dev->core_dev->device,
-				  sizeof(struct sa_state_record),
-				  ctx->state_record,
-				  ctx->state_record_dma_addr);
-	ctx->state_record_dma_addr = 0;
-}
-
 /**
  * alloc memory for the gather ring
  * no need to alloc buf for the ring
@@ -191,7 +166,6 @@ void crypto4xx_free_state_record(struct crypto4xx_ctx *ctx)
 static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
 {
 	int i;
-	struct pd_uinfo *pd_uinfo;
 	dev->pdr = dma_alloc_coherent(dev->core_dev->device,
 				      sizeof(struct ce_pd) * PPC4XX_NUM_PD,
 				      &dev->pdr_pa, GFP_ATOMIC);
@@ -207,9 +181,9 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
 				  dev->pdr_pa);
 		return -ENOMEM;
 	}
-	memset(dev->pdr, 0,  sizeof(struct ce_pd) * PPC4XX_NUM_PD);
+	memset(dev->pdr, 0, sizeof(struct ce_pd) * PPC4XX_NUM_PD);
 	dev->shadow_sa_pool = dma_alloc_coherent(dev->core_dev->device,
-				   256 * PPC4XX_NUM_PD,
+				   sizeof(union shadow_sa_buf) * PPC4XX_NUM_PD,
 				   &dev->shadow_sa_pool_pa,
 				   GFP_ATOMIC);
 	if (!dev->shadow_sa_pool)
@@ -221,16 +195,17 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
 	if (!dev->shadow_sr_pool)
 		return -ENOMEM;
 	for (i = 0; i < PPC4XX_NUM_PD; i++) {
-		pd_uinfo = (struct pd_uinfo *) (dev->pdr_uinfo +
-						sizeof(struct pd_uinfo) * i);
+		struct ce_pd *pd = &dev->pdr[i];
+		struct pd_uinfo *pd_uinfo = &dev->pdr_uinfo[i];
+
+		pd->sa = dev->shadow_sa_pool_pa +
+			sizeof(union shadow_sa_buf) * i;
 
 		/* alloc 256 bytes which is enough for any kind of dynamic sa */
-		pd_uinfo->sa_va = dev->shadow_sa_pool + 256 * i;
-		pd_uinfo->sa_pa = dev->shadow_sa_pool_pa + 256 * i;
+		pd_uinfo->sa_va = &dev->shadow_sa_pool[i].sa;
 
 		/* alloc state record */
-		pd_uinfo->sr_va = dev->shadow_sr_pool +
-		    sizeof(struct sa_state_record) * i;
+		pd_uinfo->sr_va = &dev->shadow_sr_pool[i];
 		pd_uinfo->sr_pa = dev->shadow_sr_pool_pa +
 		    sizeof(struct sa_state_record) * i;
 	}
@@ -240,13 +215,16 @@ static u32 crypto4xx_build_pdr(struct crypto4xx_device *dev)
 
 static void crypto4xx_destroy_pdr(struct crypto4xx_device *dev)
 {
-	if (dev->pdr != NULL)
+	if (dev->pdr)
 		dma_free_coherent(dev->core_dev->device,
 				  sizeof(struct ce_pd) * PPC4XX_NUM_PD,
 				  dev->pdr, dev->pdr_pa);
+
 	if (dev->shadow_sa_pool)
-		dma_free_coherent(dev->core_dev->device, 256 * PPC4XX_NUM_PD,
-				  dev->shadow_sa_pool, dev->shadow_sa_pool_pa);
+		dma_free_coherent(dev->core_dev->device,
+			sizeof(union shadow_sa_buf) * PPC4XX_NUM_PD,
+			dev->shadow_sa_pool, dev->shadow_sa_pool_pa);
+
 	if (dev->shadow_sr_pool)
 		dma_free_coherent(dev->core_dev->device,
 			sizeof(struct sa_state_record) * PPC4XX_NUM_PD,
@@ -273,28 +251,21 @@ static u32 crypto4xx_get_pd_from_pdr_nolock(struct crypto4xx_device *dev)
 
 static u32 crypto4xx_put_pd_to_pdr(struct crypto4xx_device *dev, u32 idx)
 {
-	struct pd_uinfo *pd_uinfo;
+	struct pd_uinfo *pd_uinfo = &dev->pdr_uinfo[idx];
+	u32 tail;
 	unsigned long flags;
 
-	pd_uinfo = (struct pd_uinfo *)(dev->pdr_uinfo +
-				       sizeof(struct pd_uinfo) * idx);
 	spin_lock_irqsave(&dev->core_dev->lock, flags);
+	pd_uinfo->state = PD_ENTRY_FREE;
+
 	if (dev->pdr_tail != PPC4XX_LAST_PD)
 		dev->pdr_tail++;
 	else
 		dev->pdr_tail = 0;
-	pd_uinfo->state = PD_ENTRY_FREE;
+	tail = dev->pdr_tail;
 	spin_unlock_irqrestore(&dev->core_dev->lock, flags);
 
-	return 0;
-}
-
-static struct ce_pd *crypto4xx_get_pdp(struct crypto4xx_device *dev,
-				       dma_addr_t *pd_dma, u32 idx)
-{
-	*pd_dma = dev->pdr_pa + sizeof(struct ce_pd) * idx;
-
-	return dev->pdr + sizeof(struct ce_pd) * idx;
+	return tail;
 }
 
 /**
@@ -326,10 +297,11 @@ static inline void crypto4xx_destroy_gdr(struct crypto4xx_device *dev)
  * when this function is called.
  * preemption or interrupt must be disabled
  */
-u32 crypto4xx_get_n_gd(struct crypto4xx_device *dev, int n)
+static u32 crypto4xx_get_n_gd(struct crypto4xx_device *dev, int n)
 {
 	u32 retval;
 	u32 tmp;
+
 	if (n >= PPC4XX_NUM_GD)
 		return ERING_WAS_FULL;
 
@@ -372,7 +344,7 @@ static inline struct ce_gd *crypto4xx_get_gdp(struct crypto4xx_device *dev,
 {
 	*gd_dma = dev->gdr_pa + sizeof(struct ce_gd) * idx;
 
-	return (struct ce_gd *) (dev->gdr + sizeof(struct ce_gd) * idx);
+	return &dev->gdr[idx];
 }
 
 /**
@@ -383,7 +355,6 @@ static inline struct ce_gd *crypto4xx_get_gdp(struct crypto4xx_device *dev,
 static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
 {
 	int i;
-	struct ce_sd *sd_array;
 
 	/* alloc memory for scatter descriptor ring */
 	dev->sdr = dma_alloc_coherent(dev->core_dev->device,
@@ -392,10 +363,9 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
 	if (!dev->sdr)
 		return -ENOMEM;
 
-	dev->scatter_buffer_size = PPC4XX_SD_BUFFER_SIZE;
 	dev->scatter_buffer_va =
 		dma_alloc_coherent(dev->core_dev->device,
-			dev->scatter_buffer_size * PPC4XX_NUM_SD,
+			PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
 			&dev->scatter_buffer_pa, GFP_ATOMIC);
 	if (!dev->scatter_buffer_va) {
 		dma_free_coherent(dev->core_dev->device,
@@ -404,11 +374,9 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
 		return -ENOMEM;
 	}
 
-	sd_array = dev->sdr;
-
 	for (i = 0; i < PPC4XX_NUM_SD; i++) {
-		sd_array[i].ptr = dev->scatter_buffer_pa +
-				  dev->scatter_buffer_size * i;
+		dev->sdr[i].ptr = dev->scatter_buffer_pa +
+				  PPC4XX_SD_BUFFER_SIZE * i;
 	}
 
 	return 0;
@@ -416,14 +384,14 @@ static u32 crypto4xx_build_sdr(struct crypto4xx_device *dev)
 
 static void crypto4xx_destroy_sdr(struct crypto4xx_device *dev)
 {
-	if (dev->sdr != NULL)
+	if (dev->sdr)
 		dma_free_coherent(dev->core_dev->device,
 				  sizeof(struct ce_sd) * PPC4XX_NUM_SD,
 				  dev->sdr, dev->sdr_pa);
 
-	if (dev->scatter_buffer_va != NULL)
+	if (dev->scatter_buffer_va)
 		dma_free_coherent(dev->core_dev->device,
-				  dev->scatter_buffer_size * PPC4XX_NUM_SD,
+				  PPC4XX_SD_BUFFER_SIZE * PPC4XX_NUM_SD,
 				  dev->scatter_buffer_va,
 				  dev->scatter_buffer_pa);
 }
@@ -477,63 +445,7 @@ static inline struct ce_sd *crypto4xx_get_sdp(struct crypto4xx_device *dev,
 {
 	*sd_dma = dev->sdr_pa + sizeof(struct ce_sd) * idx;
 
-	return  (struct ce_sd *)(dev->sdr + sizeof(struct ce_sd) * idx);
-}
-
-static u32 crypto4xx_fill_one_page(struct crypto4xx_device *dev,
-				   dma_addr_t *addr, u32 *length,
-				   u32 *idx, u32 *offset, u32 *nbytes)
-{
-	u32 len;
-
-	if (*length > dev->scatter_buffer_size) {
-		memcpy(phys_to_virt(*addr),
-			dev->scatter_buffer_va +
-			*idx * dev->scatter_buffer_size + *offset,
-			dev->scatter_buffer_size);
-		*offset = 0;
-		*length -= dev->scatter_buffer_size;
-		*nbytes -= dev->scatter_buffer_size;
-		if (*idx == PPC4XX_LAST_SD)
-			*idx = 0;
-		else
-			(*idx)++;
-		*addr = *addr +  dev->scatter_buffer_size;
-		return 1;
-	} else if (*length < dev->scatter_buffer_size) {
-		memcpy(phys_to_virt(*addr),
-			dev->scatter_buffer_va +
-			*idx * dev->scatter_buffer_size + *offset, *length);
-		if ((*offset + *length) == dev->scatter_buffer_size) {
-			if (*idx == PPC4XX_LAST_SD)
-				*idx = 0;
-			else
-				(*idx)++;
-			*nbytes -= *length;
-			*offset = 0;
-		} else {
-			*nbytes -= *length;
-			*offset += *length;
-		}
-
-		return 0;
-	} else {
-		len = (*nbytes <= dev->scatter_buffer_size) ?
-				(*nbytes) : dev->scatter_buffer_size;
-		memcpy(phys_to_virt(*addr),
-			dev->scatter_buffer_va +
-			*idx * dev->scatter_buffer_size + *offset,
-			len);
-		*offset = 0;
-		*nbytes -= len;
-
-		if (*idx == PPC4XX_LAST_SD)
-			*idx = 0;
-		else
-			(*idx)++;
-
-		return 0;
-    }
+	return &dev->sdr[idx];
 }
 
 static void crypto4xx_copy_pkt_to_dst(struct crypto4xx_device *dev,
@@ -542,66 +454,52 @@ static void crypto4xx_copy_pkt_to_dst(struct crypto4xx_device *dev,
 				      u32 nbytes,
 				      struct scatterlist *dst)
 {
-	dma_addr_t addr;
-	u32 this_sd;
-	u32 offset;
-	u32 len;
-	u32 i;
-	u32 sg_len;
-	struct scatterlist *sg;
+	unsigned int first_sd = pd_uinfo->first_sd;
+	unsigned int last_sd;
+	unsigned int overflow = 0;
+	unsigned int to_copy;
+	unsigned int dst_start = 0;
 
-	this_sd = pd_uinfo->first_sd;
-	offset = 0;
-	i = 0;
+	/*
+	 * Because the scatter buffers are all neatly organized in one
+	 * big continuous ringbuffer; scatterwalk_map_and_copy() can
+	 * be instructed to copy a range of buffers in one go.
+	 */
+
+	last_sd = (first_sd + pd_uinfo->num_sd);
+	if (last_sd > PPC4XX_LAST_SD) {
+		last_sd = PPC4XX_LAST_SD;
+		overflow = last_sd % PPC4XX_NUM_SD;
+	}
 
 	while (nbytes) {
-		sg = &dst[i];
-		sg_len = sg->length;
-		addr = dma_map_page(dev->core_dev->device, sg_page(sg),
-				sg->offset, sg->length, DMA_TO_DEVICE);
-
-		if (offset == 0) {
-			len = (nbytes <= sg->length) ? nbytes : sg->length;
-			while (crypto4xx_fill_one_page(dev, &addr, &len,
-				&this_sd, &offset, &nbytes))
-				;
-			if (!nbytes)
-				return;
-			i++;
-		} else {
-			len = (nbytes <= (dev->scatter_buffer_size - offset)) ?
-				nbytes : (dev->scatter_buffer_size - offset);
-			len = (sg->length < len) ? sg->length : len;
-			while (crypto4xx_fill_one_page(dev, &addr, &len,
-					       &this_sd, &offset, &nbytes))
-				;
-			if (!nbytes)
-				return;
-			sg_len -= len;
-			if (sg_len) {
-				addr += len;
-				while (crypto4xx_fill_one_page(dev, &addr,
-					&sg_len, &this_sd, &offset, &nbytes))
-					;
-			}
-			i++;
+		void *buf = dev->scatter_buffer_va +
+			first_sd * PPC4XX_SD_BUFFER_SIZE;
+
+		to_copy = min(nbytes, PPC4XX_SD_BUFFER_SIZE *
+				      (1 + last_sd - first_sd));
+		scatterwalk_map_and_copy(buf, dst, dst_start, to_copy, 1);
+		nbytes -= to_copy;
+
+		if (overflow) {
+			first_sd = 0;
+			last_sd = overflow;
+			dst_start += to_copy;
+			overflow = 0;
 		}
 	}
 }
 
-static u32 crypto4xx_copy_digest_to_dst(struct pd_uinfo *pd_uinfo,
+static void crypto4xx_copy_digest_to_dst(void *dst,
+					struct pd_uinfo *pd_uinfo,
 					struct crypto4xx_ctx *ctx)
 {
 	struct dynamic_sa_ctl *sa = (struct dynamic_sa_ctl *) ctx->sa_in;
-	struct sa_state_record *state_record =
-				(struct sa_state_record *) pd_uinfo->sr_va;
 
 	if (sa->sa_command_0.bf.hash_alg == SA_HASH_ALG_SHA1) {
-		memcpy((void *) pd_uinfo->dest_va, state_record->save_digest,
+		memcpy(dst, pd_uinfo->sr_va->save_digest,
 		       SA_HASH_ALG_SHA1_DIGEST_SIZE);
 	}
-
-	return 0;
 }
 
 static void crypto4xx_ret_sg_desc(struct crypto4xx_device *dev,
@@ -623,7 +521,7 @@ static void crypto4xx_ret_sg_desc(struct crypto4xx_device *dev,
 	}
 }
 
-static u32 crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,
+static void crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,
 				     struct pd_uinfo *pd_uinfo,
 				     struct ce_pd *pd)
 {
@@ -644,13 +542,13 @@ static u32 crypto4xx_ablkcipher_done(struct crypto4xx_device *dev,
 				    dst->offset, dst->length, DMA_FROM_DEVICE);
 	}
 	crypto4xx_ret_sg_desc(dev, pd_uinfo);
-	if (ablk_req->base.complete != NULL)
-		ablk_req->base.complete(&ablk_req->base, 0);
 
-	return 0;
+	if (pd_uinfo->state & PD_ENTRY_BUSY)
+		ablkcipher_request_complete(ablk_req, -EINPROGRESS);
+	ablkcipher_request_complete(ablk_req, 0);
 }
 
-static u32 crypto4xx_ahash_done(struct crypto4xx_device *dev,
+static void crypto4xx_ahash_done(struct crypto4xx_device *dev,
 				struct pd_uinfo *pd_uinfo)
 {
 	struct crypto4xx_ctx *ctx;
@@ -659,62 +557,93 @@ static u32 crypto4xx_ahash_done(struct crypto4xx_device *dev,
 	ahash_req = ahash_request_cast(pd_uinfo->async_req);
 	ctx  = crypto_tfm_ctx(ahash_req->base.tfm);
 
-	crypto4xx_copy_digest_to_dst(pd_uinfo,
+	crypto4xx_copy_digest_to_dst(ahash_req->result, pd_uinfo,
 				     crypto_tfm_ctx(ahash_req->base.tfm));
 	crypto4xx_ret_sg_desc(dev, pd_uinfo);
-	/* call user provided callback function x */
-	if (ahash_req->base.complete != NULL)
-		ahash_req->base.complete(&ahash_req->base, 0);
 
-	return 0;
+	if (pd_uinfo->state & PD_ENTRY_BUSY)
+		ahash_request_complete(ahash_req, -EINPROGRESS);
+	ahash_request_complete(ahash_req, 0);
 }
 
-static u32 crypto4xx_pd_done(struct crypto4xx_device *dev, u32 idx)
+static void crypto4xx_aead_done(struct crypto4xx_device *dev,
+				struct pd_uinfo *pd_uinfo,
+				struct ce_pd *pd)
 {
-	struct ce_pd *pd;
-	struct pd_uinfo *pd_uinfo;
+	struct aead_request *aead_req;
+	struct crypto4xx_ctx *ctx;
+	struct scatterlist *dst = pd_uinfo->dest_va;
+	int err = 0;
 
-	pd =  dev->pdr + sizeof(struct ce_pd)*idx;
-	pd_uinfo = dev->pdr_uinfo + sizeof(struct pd_uinfo)*idx;
-	if (crypto_tfm_alg_type(pd_uinfo->async_req->tfm) ==
-			CRYPTO_ALG_TYPE_ABLKCIPHER)
-		return crypto4xx_ablkcipher_done(dev, pd_uinfo, pd);
-	else
-		return crypto4xx_ahash_done(dev, pd_uinfo);
+	aead_req = container_of(pd_uinfo->async_req, struct aead_request,
+				base);
+	ctx  = crypto_tfm_ctx(aead_req->base.tfm);
+
+	if (pd_uinfo->using_sd) {
+		crypto4xx_copy_pkt_to_dst(dev, pd, pd_uinfo,
+					  pd->pd_ctl_len.bf.pkt_len,
+					  dst);
+	} else {
+		__dma_sync_page(sg_page(dst), dst->offset, dst->length,
+				DMA_FROM_DEVICE);
+	}
+
+	if (pd_uinfo->sa_va->sa_command_0.bf.dir == DIR_OUTBOUND) {
+		/* append icv at the end */
+		size_t cp_len = crypto_aead_authsize(
+			crypto_aead_reqtfm(aead_req));
+		u32 icv[cp_len];
+
+		crypto4xx_memcpy_from_le32(icv, pd_uinfo->sr_va->save_digest,
+					   cp_len);
+
+		scatterwalk_map_and_copy(icv, dst, aead_req->cryptlen,
+					 cp_len, 1);
+	}
+
+	crypto4xx_ret_sg_desc(dev, pd_uinfo);
+
+	if (pd->pd_ctl.bf.status & 0xff) {
+		if (pd->pd_ctl.bf.status & 0x1) {
+			/* authentication error */
+			err = -EBADMSG;
+		} else {
+			if (!__ratelimit(&dev->aead_ratelimit)) {
+				if (pd->pd_ctl.bf.status & 2)
+					pr_err("pad fail error\n");
+				if (pd->pd_ctl.bf.status & 4)
+					pr_err("seqnum fail\n");
+				if (pd->pd_ctl.bf.status & 8)
+					pr_err("error _notify\n");
+				pr_err("aead return err status = 0x%02x\n",
+					pd->pd_ctl.bf.status & 0xff);
+				pr_err("pd pad_ctl = 0x%08x\n",
+					pd->pd_ctl.bf.pd_pad_ctl);
+			}
+			err = -EINVAL;
+		}
+	}
+
+	if (pd_uinfo->state & PD_ENTRY_BUSY)
+		aead_request_complete(aead_req, -EINPROGRESS);
+
+	aead_request_complete(aead_req, err);
 }
 
-/**
- * Note: Only use this function to copy items that is word aligned.
- */
-void crypto4xx_memcpy_le(unsigned int *dst,
-			 const unsigned char *buf,
-			 int len)
+static void crypto4xx_pd_done(struct crypto4xx_device *dev, u32 idx)
 {
-	u8 *tmp;
-	for (; len >= 4; buf += 4, len -= 4)
-		*dst++ = cpu_to_le32(*(unsigned int *) buf);
-
-	tmp = (u8 *)dst;
-	switch (len) {
-	case 3:
-		*tmp++ = 0;
-		*tmp++ = *(buf+2);
-		*tmp++ = *(buf+1);
-		*tmp++ = *buf;
-		break;
-	case 2:
-		*tmp++ = 0;
-		*tmp++ = 0;
-		*tmp++ = *(buf+1);
-		*tmp++ = *buf;
+	struct ce_pd *pd = &dev->pdr[idx];
+	struct pd_uinfo *pd_uinfo = &dev->pdr_uinfo[idx];
+
+	switch (crypto_tfm_alg_type(pd_uinfo->async_req->tfm)) {
+	case CRYPTO_ALG_TYPE_ABLKCIPHER:
+		crypto4xx_ablkcipher_done(dev, pd_uinfo, pd);
 		break;
-	case 1:
-		*tmp++ = 0;
-		*tmp++ = 0;
-		*tmp++ = 0;
-		*tmp++ = *buf;
+	case CRYPTO_ALG_TYPE_AEAD:
+		crypto4xx_aead_done(dev, pd_uinfo, pd);
 		break;
-	default:
+	case CRYPTO_ALG_TYPE_AHASH:
+		crypto4xx_ahash_done(dev, pd_uinfo);
 		break;
 	}
 }
@@ -729,17 +658,6 @@ static void crypto4xx_stop_all(struct crypto4xx_core_device *core_dev)
 	kfree(core_dev);
 }
 
-void crypto4xx_return_pd(struct crypto4xx_device *dev,
-			 u32 pd_entry, struct ce_pd *pd,
-			 struct pd_uinfo *pd_uinfo)
-{
-	/* irq should be already disabled */
-	dev->pdr_head = pd_entry;
-	pd->pd_ctl.w = 0;
-	pd->pd_ctl_len.w = 0;
-	pd_uinfo->state = PD_ENTRY_FREE;
-}
-
 static u32 get_next_gd(u32 current)
 {
 	if (current != PPC4XX_LAST_GD)
@@ -756,17 +674,19 @@ static u32 get_next_sd(u32 current)
 		return 0;
 }
 
-u32 crypto4xx_build_pd(struct crypto_async_request *req,
+int crypto4xx_build_pd(struct crypto_async_request *req,
 		       struct crypto4xx_ctx *ctx,
 		       struct scatterlist *src,
 		       struct scatterlist *dst,
-		       unsigned int datalen,
-		       void *iv, u32 iv_len)
+		       const unsigned int datalen,
+		       const __le32 *iv, const u32 iv_len,
+		       const struct dynamic_sa_ctl *req_sa,
+		       const unsigned int sa_len,
+		       const unsigned int assoclen)
 {
+	struct scatterlist _dst[2];
 	struct crypto4xx_device *dev = ctx->dev;
-	dma_addr_t addr, pd_dma, sd_dma, gd_dma;
 	struct dynamic_sa_ctl *sa;
-	struct scatterlist *sg;
 	struct ce_gd *gd;
 	struct ce_pd *pd;
 	u32 num_gd, num_sd;
@@ -774,22 +694,30 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 	u32 fst_sd = 0xffffffff;
 	u32 pd_entry;
 	unsigned long flags;
-	struct pd_uinfo *pd_uinfo = NULL;
-	unsigned int nbytes = datalen, idx;
-	unsigned int ivlen = 0;
+	struct pd_uinfo *pd_uinfo;
+	unsigned int nbytes = datalen;
+	size_t offset_to_sr_ptr;
 	u32 gd_idx = 0;
+	int tmp;
+	bool is_busy;
 
-	/* figure how many gd is needed */
-	num_gd = sg_nents_for_len(src, datalen);
-	if ((int)num_gd < 0) {
+	/* figure how many gd are needed */
+	tmp = sg_nents_for_len(src, assoclen + datalen);
+	if (tmp < 0) {
 		dev_err(dev->core_dev->device, "Invalid number of src SG.\n");
-		return -EINVAL;
+		return tmp;
 	}
-	if (num_gd == 1)
-		num_gd = 0;
+	if (tmp == 1)
+		tmp = 0;
+	num_gd = tmp;
 
-	/* figure how many sd is needed */
-	if (sg_is_last(dst) || ctx->is_hash) {
+	if (assoclen) {
+		nbytes += assoclen;
+		dst = scatterwalk_ffwd(_dst, dst, assoclen);
+	}
+
+	/* figure how many sd are needed */
+	if (sg_is_last(dst)) {
 		num_sd = 0;
 	} else {
 		if (datalen > PPC4XX_SD_BUFFER_SIZE) {
@@ -808,6 +736,31 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 	 * already got must be return the original place.
 	 */
 	spin_lock_irqsave(&dev->core_dev->lock, flags);
+	/*
+	 * Let the caller know to slow down, once more than 13/16ths = 81%
+	 * of the available data contexts are being used simultaneously.
+	 *
+	 * With PPC4XX_NUM_PD = 256, this will leave a "backlog queue" for
+	 * 31 more contexts. Before new requests have to be rejected.
+	 */
+	if (req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG) {
+		is_busy = ((dev->pdr_head - dev->pdr_tail) % PPC4XX_NUM_PD) >=
+			((PPC4XX_NUM_PD * 13) / 16);
+	} else {
+		/*
+		 * To fix contention issues between ipsec (no blacklog) and
+		 * dm-crypto (backlog) reserve 32 entries for "no backlog"
+		 * data contexts.
+		 */
+		is_busy = ((dev->pdr_head - dev->pdr_tail) % PPC4XX_NUM_PD) >=
+			((PPC4XX_NUM_PD * 15) / 16);
+
+		if (is_busy) {
+			spin_unlock_irqrestore(&dev->core_dev->lock, flags);
+			return -EBUSY;
+		}
+	}
+
 	if (num_gd) {
 		fst_gd = crypto4xx_get_n_gd(dev, num_gd);
 		if (fst_gd == ERING_WAS_FULL) {
@@ -835,38 +788,28 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 	}
 	spin_unlock_irqrestore(&dev->core_dev->lock, flags);
 
-	pd_uinfo = (struct pd_uinfo *)(dev->pdr_uinfo +
-				       sizeof(struct pd_uinfo) * pd_entry);
-	pd = crypto4xx_get_pdp(dev, &pd_dma, pd_entry);
+	pd = &dev->pdr[pd_entry];
+	pd->sa_len = sa_len;
+
+	pd_uinfo = &dev->pdr_uinfo[pd_entry];
 	pd_uinfo->async_req = req;
 	pd_uinfo->num_gd = num_gd;
 	pd_uinfo->num_sd = num_sd;
 
-	if (iv_len || ctx->is_hash) {
-		ivlen = iv_len;
-		pd->sa = pd_uinfo->sa_pa;
-		sa = (struct dynamic_sa_ctl *) pd_uinfo->sa_va;
-		if (ctx->direction == DIR_INBOUND)
-			memcpy(sa, ctx->sa_in, ctx->sa_len * 4);
-		else
-			memcpy(sa, ctx->sa_out, ctx->sa_len * 4);
+	if (iv_len)
+		memcpy(pd_uinfo->sr_va->save_iv, iv, iv_len);
 
-		memcpy((void *) sa + ctx->offset_to_sr_ptr,
-			&pd_uinfo->sr_pa, 4);
+	sa = pd_uinfo->sa_va;
+	memcpy(sa, req_sa, sa_len * 4);
+
+	sa->sa_command_1.bf.hash_crypto_offset = (assoclen >> 2);
+	offset_to_sr_ptr = get_dynamic_sa_offset_state_ptr_field(sa);
+	*(u32 *)((unsigned long)sa + offset_to_sr_ptr) = pd_uinfo->sr_pa;
 
-		if (iv_len)
-			crypto4xx_memcpy_le(pd_uinfo->sr_va, iv, iv_len);
-	} else {
-		if (ctx->direction == DIR_INBOUND) {
-			pd->sa = ctx->sa_in_dma_addr;
-			sa = (struct dynamic_sa_ctl *) ctx->sa_in;
-		} else {
-			pd->sa = ctx->sa_out_dma_addr;
-			sa = (struct dynamic_sa_ctl *) ctx->sa_out;
-		}
-	}
-	pd->sa_len = ctx->sa_len;
 	if (num_gd) {
+		dma_addr_t gd_dma;
+		struct scatterlist *sg;
+
 		/* get first gd we are going to use */
 		gd_idx = fst_gd;
 		pd_uinfo->first_gd = fst_gd;
@@ -875,27 +818,30 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 		pd->src = gd_dma;
 		/* enable gather */
 		sa->sa_command_0.bf.gather = 1;
-		idx = 0;
-		src = &src[0];
 		/* walk the sg, and setup gather array */
+
+		sg = src;
 		while (nbytes) {
-			sg = &src[idx];
-			addr = dma_map_page(dev->core_dev->device, sg_page(sg),
-				    sg->offset, sg->length, DMA_TO_DEVICE);
-			gd->ptr = addr;
-			gd->ctl_len.len = sg->length;
+			size_t len;
+
+			len = min(sg->length, nbytes);
+			gd->ptr = dma_map_page(dev->core_dev->device,
+				sg_page(sg), sg->offset, len, DMA_TO_DEVICE);
+			gd->ctl_len.len = len;
 			gd->ctl_len.done = 0;
 			gd->ctl_len.ready = 1;
-			if (sg->length >= nbytes)
+			if (len >= nbytes)
 				break;
+
 			nbytes -= sg->length;
 			gd_idx = get_next_gd(gd_idx);
 			gd = crypto4xx_get_gdp(dev, &gd_dma, gd_idx);
-			idx++;
+			sg = sg_next(sg);
 		}
 	} else {
 		pd->src = (u32)dma_map_page(dev->core_dev->device, sg_page(src),
-				src->offset, src->length, DMA_TO_DEVICE);
+				src->offset, min(nbytes, src->length),
+				DMA_TO_DEVICE);
 		/*
 		 * Disable gather in sa command
 		 */
@@ -906,25 +852,24 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 		pd_uinfo->first_gd = 0xffffffff;
 		pd_uinfo->num_gd = 0;
 	}
-	if (ctx->is_hash || sg_is_last(dst)) {
+	if (sg_is_last(dst)) {
 		/*
 		 * we know application give us dst a whole piece of memory
 		 * no need to use scatter ring.
-		 * In case of is_hash, the icv is always at end of src data.
 		 */
 		pd_uinfo->using_sd = 0;
 		pd_uinfo->first_sd = 0xffffffff;
 		pd_uinfo->num_sd = 0;
 		pd_uinfo->dest_va = dst;
 		sa->sa_command_0.bf.scatter = 0;
-		if (ctx->is_hash)
-			pd->dest = virt_to_phys((void *)dst);
-		else
-			pd->dest = (u32)dma_map_page(dev->core_dev->device,
-					sg_page(dst), dst->offset,
-					dst->length, DMA_TO_DEVICE);
+		pd->dest = (u32)dma_map_page(dev->core_dev->device,
+					     sg_page(dst), dst->offset,
+					     min(datalen, dst->length),
+					     DMA_TO_DEVICE);
 	} else {
+		dma_addr_t sd_dma;
 		struct ce_sd *sd = NULL;
+
 		u32 sd_idx = fst_sd;
 		nbytes = datalen;
 		sa->sa_command_0.bf.scatter = 1;
@@ -938,7 +883,6 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 		sd->ctl.done = 0;
 		sd->ctl.rdy = 1;
 		/* sd->ptr should be setup by sd_init routine*/
-		idx = 0;
 		if (nbytes >= PPC4XX_SD_BUFFER_SIZE)
 			nbytes -= PPC4XX_SD_BUFFER_SIZE;
 		else
@@ -949,67 +893,97 @@ u32 crypto4xx_build_pd(struct crypto_async_request *req,
 			/* setup scatter descriptor */
 			sd->ctl.done = 0;
 			sd->ctl.rdy = 1;
-			if (nbytes >= PPC4XX_SD_BUFFER_SIZE)
+			if (nbytes >= PPC4XX_SD_BUFFER_SIZE) {
 				nbytes -= PPC4XX_SD_BUFFER_SIZE;
-			else
+			} else {
 				/*
 				 * SD entry can hold PPC4XX_SD_BUFFER_SIZE,
 				 * which is more than nbytes, so done.
 				 */
 				nbytes = 0;
+			}
 		}
 	}
 
-	sa->sa_command_1.bf.hash_crypto_offset = 0;
-	pd->pd_ctl.w = ctx->pd_ctl;
-	pd->pd_ctl_len.w = 0x00400000 | (ctx->bypass << 24) | datalen;
-	pd_uinfo->state = PD_ENTRY_INUSE;
+	pd->pd_ctl.w = PD_CTL_HOST_READY |
+		((crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AHASH) |
+		 (crypto_tfm_alg_type(req->tfm) == CRYPTO_ALG_TYPE_AEAD) ?
+			PD_CTL_HASH_FINAL : 0);
+	pd->pd_ctl_len.w = 0x00400000 | (assoclen + datalen);
+	pd_uinfo->state = PD_ENTRY_INUSE | (is_busy ? PD_ENTRY_BUSY : 0);
+
 	wmb();
 	/* write any value to push engine to read a pd */
+	writel(0, dev->ce_base + CRYPTO4XX_INT_DESCR_RD);
 	writel(1, dev->ce_base + CRYPTO4XX_INT_DESCR_RD);
-	return -EINPROGRESS;
+	return is_busy ? -EBUSY : -EINPROGRESS;
 }
 
 /**
  * Algorithm Registration Functions
  */
-static int crypto4xx_alg_init(struct crypto_tfm *tfm)
+static void crypto4xx_ctx_init(struct crypto4xx_alg *amcc_alg,
+			       struct crypto4xx_ctx *ctx)
 {
-	struct crypto_alg *alg = tfm->__crt_alg;
-	struct crypto4xx_alg *amcc_alg = crypto_alg_to_crypto4xx_alg(alg);
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
-
 	ctx->dev = amcc_alg->dev;
 	ctx->sa_in = NULL;
 	ctx->sa_out = NULL;
-	ctx->sa_in_dma_addr = 0;
-	ctx->sa_out_dma_addr = 0;
 	ctx->sa_len = 0;
+}
 
-	switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
-	default:
-		tfm->crt_ablkcipher.reqsize = sizeof(struct crypto4xx_ctx);
-		break;
-	case CRYPTO_ALG_TYPE_AHASH:
-		crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
-					 sizeof(struct crypto4xx_ctx));
-		break;
-	}
+static int crypto4xx_ablk_init(struct crypto_tfm *tfm)
+{
+	struct crypto_alg *alg = tfm->__crt_alg;
+	struct crypto4xx_alg *amcc_alg;
+	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
 
+	amcc_alg = container_of(alg, struct crypto4xx_alg, alg.u.cipher);
+	crypto4xx_ctx_init(amcc_alg, ctx);
+	tfm->crt_ablkcipher.reqsize = sizeof(struct crypto4xx_ctx);
 	return 0;
 }
 
-static void crypto4xx_alg_exit(struct crypto_tfm *tfm)
+static void crypto4xx_common_exit(struct crypto4xx_ctx *ctx)
 {
-	struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm);
-
 	crypto4xx_free_sa(ctx);
-	crypto4xx_free_state_record(ctx);
 }
 
-int crypto4xx_register_alg(struct crypto4xx_device *sec_dev,
-			   struct crypto4xx_alg_common *crypto_alg,
-			   int array_size)
+static void crypto4xx_ablk_exit(struct crypto_tfm *tfm)
+{
+	crypto4xx_common_exit(crypto_tfm_ctx(tfm));
+}
+
+static int crypto4xx_aead_init(struct crypto_aead *tfm)
+{
+	struct aead_alg *alg = crypto_aead_alg(tfm);
+	struct crypto4xx_ctx *ctx = crypto_aead_ctx(tfm);
+	struct crypto4xx_alg *amcc_alg;
+
+	ctx->sw_cipher.aead = crypto_alloc_aead(alg->base.cra_name, 0,
+						CRYPTO_ALG_NEED_FALLBACK |
+						CRYPTO_ALG_ASYNC);
+	if (IS_ERR(ctx->sw_cipher.aead))
+		return PTR_ERR(ctx->sw_cipher.aead);
+
+	amcc_alg = container_of(alg, struct crypto4xx_alg, alg.u.aead);
+	crypto4xx_ctx_init(amcc_alg, ctx);
+	crypto_aead_set_reqsize(tfm, sizeof(struct aead_request) +
+				max(sizeof(struct crypto4xx_ctx), 32 +
+				crypto_aead_reqsize(ctx->sw_cipher.aead)));
+	return 0;
+}
+
+static void crypto4xx_aead_exit(struct crypto_aead *tfm)
+{
+	struct crypto4xx_ctx *ctx = crypto_aead_ctx(tfm);
+
+	crypto4xx_common_exit(ctx);
+	crypto_free_aead(ctx->sw_cipher.aead);
+}
+
+static int crypto4xx_register_alg(struct crypto4xx_device *sec_dev,
+				  struct crypto4xx_alg_common *crypto_alg,
+				  int array_size)
 {
 	struct crypto4xx_alg *alg;
 	int i;
@@ -1024,6 +998,10 @@ int crypto4xx_register_alg(struct crypto4xx_device *sec_dev,
 		alg->dev = sec_dev;
 
 		switch (alg->alg.type) {
+		case CRYPTO_ALG_TYPE_AEAD:
+			rc = crypto_register_aead(&alg->alg.u.aead);
+			break;
+
 		case CRYPTO_ALG_TYPE_AHASH:
 			rc = crypto_register_ahash(&alg->alg.u.hash);
 			break;
@@ -1033,12 +1011,10 @@ int crypto4xx_register_alg(struct crypto4xx_device *sec_dev,
 			break;
 		}
 
-		if (rc) {
-			list_del(&alg->entry);
+		if (rc)
 			kfree(alg);
-		} else {
+		else
 			list_add_tail(&alg->entry, &sec_dev->alg_list);
-		}
 	}
 
 	return 0;
@@ -1055,6 +1031,10 @@ static void crypto4xx_unregister_alg(struct crypto4xx_device *sec_dev)
 			crypto_unregister_ahash(&alg->alg.u.hash);
 			break;
 
+		case CRYPTO_ALG_TYPE_AEAD:
+			crypto_unregister_aead(&alg->alg.u.aead);
+			break;
+
 		default:
 			crypto_unregister_alg(&alg->alg.u.cipher);
 		}
@@ -1068,25 +1048,23 @@ static void crypto4xx_bh_tasklet_cb(unsigned long data)
 	struct crypto4xx_core_device *core_dev = dev_get_drvdata(dev);
 	struct pd_uinfo *pd_uinfo;
 	struct ce_pd *pd;
-	u32 tail;
-
-	while (core_dev->dev->pdr_head != core_dev->dev->pdr_tail) {
-		tail = core_dev->dev->pdr_tail;
-		pd_uinfo = core_dev->dev->pdr_uinfo +
-			sizeof(struct pd_uinfo)*tail;
-		pd =  core_dev->dev->pdr + sizeof(struct ce_pd) * tail;
-		if ((pd_uinfo->state == PD_ENTRY_INUSE) &&
-				   pd->pd_ctl.bf.pe_done &&
-				   !pd->pd_ctl.bf.host_ready) {
-			pd->pd_ctl.bf.pe_done = 0;
+	u32 tail = core_dev->dev->pdr_tail;
+	u32 head = core_dev->dev->pdr_head;
+
+	do {
+		pd_uinfo = &core_dev->dev->pdr_uinfo[tail];
+		pd = &core_dev->dev->pdr[tail];
+		if ((pd_uinfo->state & PD_ENTRY_INUSE) &&
+		     ((READ_ONCE(pd->pd_ctl.w) &
+		       (PD_CTL_PE_DONE | PD_CTL_HOST_READY)) ==
+		       PD_CTL_PE_DONE)) {
 			crypto4xx_pd_done(core_dev->dev, tail);
-			crypto4xx_put_pd_to_pdr(core_dev->dev, tail);
-			pd_uinfo->state = PD_ENTRY_FREE;
+			tail = crypto4xx_put_pd_to_pdr(core_dev->dev, tail);
 		} else {
 			/* if tail not done, break */
 			break;
 		}
-	}
+	} while (head != tail);
 }
 
 /**
@@ -1110,18 +1088,20 @@ static irqreturn_t crypto4xx_ce_interrupt_handler(int irq, void *data)
 /**
  * Supported Crypto Algorithms
  */
-struct crypto4xx_alg_common crypto4xx_alg[] = {
+static struct crypto4xx_alg_common crypto4xx_alg[] = {
 	/* Crypto AES modes */
 	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
 		.cra_name 	= "cbc(aes)",
 		.cra_driver_name = "cbc-aes-ppc4xx",
 		.cra_priority 	= CRYPTO4XX_CRYPTO_PRIORITY,
-		.cra_flags 	= CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC,
+		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
+				  CRYPTO_ALG_ASYNC |
+				  CRYPTO_ALG_KERN_DRIVER_ONLY,
 		.cra_blocksize 	= AES_BLOCK_SIZE,
 		.cra_ctxsize 	= sizeof(struct crypto4xx_ctx),
 		.cra_type 	= &crypto_ablkcipher_type,
-		.cra_init	= crypto4xx_alg_init,
-		.cra_exit	= crypto4xx_alg_exit,
+		.cra_init	= crypto4xx_ablk_init,
+		.cra_exit	= crypto4xx_ablk_exit,
 		.cra_module 	= THIS_MODULE,
 		.cra_u 		= {
 			.ablkcipher = {
@@ -1134,6 +1114,147 @@ struct crypto4xx_alg_common crypto4xx_alg[] = {
 			}
 		}
 	}},
+	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
+		.cra_name	= "cfb(aes)",
+		.cra_driver_name = "cfb-aes-ppc4xx",
+		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
+		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
+				  CRYPTO_ALG_ASYNC |
+				  CRYPTO_ALG_KERN_DRIVER_ONLY,
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
+		.cra_type	= &crypto_ablkcipher_type,
+		.cra_init	= crypto4xx_ablk_init,
+		.cra_exit	= crypto4xx_ablk_exit,
+		.cra_module	= THIS_MODULE,
+		.cra_u		= {
+			.ablkcipher = {
+				.min_keysize	= AES_MIN_KEY_SIZE,
+				.max_keysize	= AES_MAX_KEY_SIZE,
+				.ivsize		= AES_IV_SIZE,
+				.setkey		= crypto4xx_setkey_aes_cfb,
+				.encrypt	= crypto4xx_encrypt,
+				.decrypt	= crypto4xx_decrypt,
+			}
+		}
+	} },
+	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
+		.cra_name	= "rfc3686(ctr(aes))",
+		.cra_driver_name = "rfc3686-ctr-aes-ppc4xx",
+		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
+		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
+				  CRYPTO_ALG_ASYNC |
+				  CRYPTO_ALG_KERN_DRIVER_ONLY,
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
+		.cra_type	= &crypto_ablkcipher_type,
+		.cra_init	= crypto4xx_ablk_init,
+		.cra_exit	= crypto4xx_ablk_exit,
+		.cra_module	= THIS_MODULE,
+		.cra_u		= {
+			.ablkcipher = {
+				.min_keysize	= AES_MIN_KEY_SIZE +
+						  CTR_RFC3686_NONCE_SIZE,
+				.max_keysize	= AES_MAX_KEY_SIZE +
+						  CTR_RFC3686_NONCE_SIZE,
+				.ivsize		= CTR_RFC3686_IV_SIZE,
+				.setkey		= crypto4xx_setkey_rfc3686,
+				.encrypt	= crypto4xx_rfc3686_encrypt,
+				.decrypt	= crypto4xx_rfc3686_decrypt,
+			}
+		}
+	} },
+	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
+		.cra_name	= "ecb(aes)",
+		.cra_driver_name = "ecb-aes-ppc4xx",
+		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
+		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
+				  CRYPTO_ALG_ASYNC |
+				  CRYPTO_ALG_KERN_DRIVER_ONLY,
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
+		.cra_type	= &crypto_ablkcipher_type,
+		.cra_init	= crypto4xx_ablk_init,
+		.cra_exit	= crypto4xx_ablk_exit,
+		.cra_module	= THIS_MODULE,
+		.cra_u		= {
+			.ablkcipher = {
+				.min_keysize	= AES_MIN_KEY_SIZE,
+				.max_keysize	= AES_MAX_KEY_SIZE,
+				.setkey		= crypto4xx_setkey_aes_ecb,
+				.encrypt	= crypto4xx_encrypt,
+				.decrypt	= crypto4xx_decrypt,
+			}
+		}
+	} },
+	{ .type = CRYPTO_ALG_TYPE_ABLKCIPHER, .u.cipher = {
+		.cra_name	= "ofb(aes)",
+		.cra_driver_name = "ofb-aes-ppc4xx",
+		.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
+		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
+				  CRYPTO_ALG_ASYNC |
+				  CRYPTO_ALG_KERN_DRIVER_ONLY,
+		.cra_blocksize	= AES_BLOCK_SIZE,
+		.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
+		.cra_type	= &crypto_ablkcipher_type,
+		.cra_init	= crypto4xx_ablk_init,
+		.cra_exit	= crypto4xx_ablk_exit,
+		.cra_module	= THIS_MODULE,
+		.cra_u		= {
+			.ablkcipher = {
+				.min_keysize	= AES_MIN_KEY_SIZE,
+				.max_keysize	= AES_MAX_KEY_SIZE,
+				.ivsize		= AES_IV_SIZE,
+				.setkey		= crypto4xx_setkey_aes_ofb,
+				.encrypt	= crypto4xx_encrypt,
+				.decrypt	= crypto4xx_decrypt,
+			}
+		}
+	} },
+
+	/* AEAD */
+	{ .type = CRYPTO_ALG_TYPE_AEAD, .u.aead = {
+		.setkey		= crypto4xx_setkey_aes_ccm,
+		.setauthsize	= crypto4xx_setauthsize_aead,
+		.encrypt	= crypto4xx_encrypt_aes_ccm,
+		.decrypt	= crypto4xx_decrypt_aes_ccm,
+		.init		= crypto4xx_aead_init,
+		.exit		= crypto4xx_aead_exit,
+		.ivsize		= AES_BLOCK_SIZE,
+		.maxauthsize    = 16,
+		.base = {
+			.cra_name	= "ccm(aes)",
+			.cra_driver_name = "ccm-aes-ppc4xx",
+			.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags	= CRYPTO_ALG_ASYNC |
+					  CRYPTO_ALG_NEED_FALLBACK |
+					  CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize	= 1,
+			.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
+			.cra_module	= THIS_MODULE,
+		},
+	} },
+	{ .type = CRYPTO_ALG_TYPE_AEAD, .u.aead = {
+		.setkey		= crypto4xx_setkey_aes_gcm,
+		.setauthsize	= crypto4xx_setauthsize_aead,
+		.encrypt	= crypto4xx_encrypt_aes_gcm,
+		.decrypt	= crypto4xx_decrypt_aes_gcm,
+		.init		= crypto4xx_aead_init,
+		.exit		= crypto4xx_aead_exit,
+		.ivsize		= GCM_AES_IV_SIZE,
+		.maxauthsize	= 16,
+		.base = {
+			.cra_name	= "gcm(aes)",
+			.cra_driver_name = "gcm-aes-ppc4xx",
+			.cra_priority	= CRYPTO4XX_CRYPTO_PRIORITY,
+			.cra_flags	= CRYPTO_ALG_ASYNC |
+					  CRYPTO_ALG_NEED_FALLBACK |
+					  CRYPTO_ALG_KERN_DRIVER_ONLY,
+			.cra_blocksize	= 1,
+			.cra_ctxsize	= sizeof(struct crypto4xx_ctx),
+			.cra_module	= THIS_MODULE,
+		},
+	} },
 };
 
 /**
@@ -1187,13 +1308,14 @@ static int crypto4xx_probe(struct platform_device *ofdev)
 	core_dev->device = dev;
 	spin_lock_init(&core_dev->lock);
 	INIT_LIST_HEAD(&core_dev->dev->alg_list);
+	ratelimit_default_init(&core_dev->dev->aead_ratelimit);
 	rc = crypto4xx_build_pdr(core_dev->dev);
 	if (rc)
 		goto err_build_pdr;
 
 	rc = crypto4xx_build_gdr(core_dev->dev);
 	if (rc)
-		goto err_build_gdr;
+		goto err_build_pdr;
 
 	rc = crypto4xx_build_sdr(core_dev->dev);
 	if (rc)
@@ -1236,12 +1358,11 @@ err_iomap:
 err_request_irq:
 	irq_dispose_mapping(core_dev->irq);
 	tasklet_kill(&core_dev->tasklet);
-	crypto4xx_destroy_sdr(core_dev->dev);
 err_build_sdr:
+	crypto4xx_destroy_sdr(core_dev->dev);
 	crypto4xx_destroy_gdr(core_dev->dev);
-err_build_gdr:
-	crypto4xx_destroy_pdr(core_dev->dev);
 err_build_pdr:
+	crypto4xx_destroy_pdr(core_dev->dev);
 	kfree(core_dev->dev);
 err_alloc_dev:
 	kfree(core_dev);
diff --git a/drivers/crypto/amcc/crypto4xx_core.h b/drivers/crypto/amcc/crypto4xx_core.h
index ecfdcfe3698d..8ac3bd37203b 100644
--- a/drivers/crypto/amcc/crypto4xx_core.h
+++ b/drivers/crypto/amcc/crypto4xx_core.h
@@ -22,7 +22,11 @@
 #ifndef __CRYPTO4XX_CORE_H__
 #define __CRYPTO4XX_CORE_H__
 
+#include <linux/ratelimit.h>
 #include <crypto/internal/hash.h>
+#include <crypto/internal/aead.h>
+#include "crypto4xx_reg_def.h"
+#include "crypto4xx_sa.h"
 
 #define MODULE_NAME "crypto4xx"
 
@@ -34,20 +38,28 @@
 #define PPC405EX_CE_RESET                       0x00000008
 
 #define CRYPTO4XX_CRYPTO_PRIORITY		300
-#define PPC4XX_LAST_PD				63
-#define PPC4XX_NUM_PD				64
-#define PPC4XX_LAST_GD				1023
+#define PPC4XX_NUM_PD				256
+#define PPC4XX_LAST_PD				(PPC4XX_NUM_PD - 1)
 #define PPC4XX_NUM_GD				1024
-#define PPC4XX_LAST_SD				63
-#define PPC4XX_NUM_SD				64
+#define PPC4XX_LAST_GD				(PPC4XX_NUM_GD - 1)
+#define PPC4XX_NUM_SD				256
+#define PPC4XX_LAST_SD				(PPC4XX_NUM_SD - 1)
 #define PPC4XX_SD_BUFFER_SIZE			2048
 
-#define PD_ENTRY_INUSE				1
+#define PD_ENTRY_BUSY				BIT(1)
+#define PD_ENTRY_INUSE				BIT(0)
 #define PD_ENTRY_FREE				0
 #define ERING_WAS_FULL				0xffffffff
 
 struct crypto4xx_device;
 
+union shadow_sa_buf {
+	struct dynamic_sa_ctl sa;
+
+	/* alloc 256 bytes which is enough for any kind of dynamic sa */
+	u8 buf[256];
+} __packed;
+
 struct pd_uinfo {
 	struct crypto4xx_device *dev;
 	u32   state;
@@ -60,9 +72,8 @@ struct pd_uinfo {
 				used by this packet */
 	u32 num_sd;		/* number of scatter discriptors
 				used by this packet */
-	void *sa_va;		/* shadow sa, when using cp from ctx->sa */
-	u32 sa_pa;
-	void *sr_va;		/* state record for shadow sa */
+	struct dynamic_sa_ctl *sa_va;	/* shadow sa */
+	struct sa_state_record *sr_va;	/* state record for shadow sa */
 	u32 sr_pa;
 	struct scatterlist *dest_va;
 	struct crypto_async_request *async_req; 	/* base crypto request
@@ -72,27 +83,21 @@ struct pd_uinfo {
 struct crypto4xx_device {
 	struct crypto4xx_core_device *core_dev;
 	char *name;
-	u64  ce_phy_address;
 	void __iomem *ce_base;
 	void __iomem *trng_base;
 
-	void *pdr;			/* base address of packet
-					descriptor ring */
-	dma_addr_t pdr_pa;		/* physical address used to
-					program ce pdr_base_register */
-	void *gdr;                      /* gather descriptor ring */
-	dma_addr_t gdr_pa;		/* physical address used to
-					program ce gdr_base_register */
-	void *sdr;			/* scatter descriptor ring */
-	dma_addr_t sdr_pa;		/* physical address used to
-					program ce sdr_base_register */
+	struct ce_pd *pdr;	/* base address of packet descriptor ring */
+	dma_addr_t pdr_pa;	/* physical address of pdr_base_register */
+	struct ce_gd *gdr;	/* gather descriptor ring */
+	dma_addr_t gdr_pa;	/* physical address of gdr_base_register */
+	struct ce_sd *sdr;	/* scatter descriptor ring */
+	dma_addr_t sdr_pa;	/* physical address of sdr_base_register */
 	void *scatter_buffer_va;
 	dma_addr_t scatter_buffer_pa;
-	u32 scatter_buffer_size;
 
-	void *shadow_sa_pool;		/* pool of memory for sa in pd_uinfo */
+	union shadow_sa_buf *shadow_sa_pool;
 	dma_addr_t shadow_sa_pool_pa;
-	void *shadow_sr_pool;		/* pool of memory for sr in pd_uinfo */
+	struct sa_state_record *shadow_sr_pool;
 	dma_addr_t shadow_sr_pool_pa;
 	u32 pdr_tail;
 	u32 pdr_head;
@@ -100,9 +105,10 @@ struct crypto4xx_device {
 	u32 gdr_head;
 	u32 sdr_tail;
 	u32 sdr_head;
-	void *pdr_uinfo;
+	struct pd_uinfo *pdr_uinfo;
 	struct list_head alg_list;	/* List of algorithm supported
 					by this device */
+	struct ratelimit_state aead_ratelimit;
 };
 
 struct crypto4xx_core_device {
@@ -118,30 +124,13 @@ struct crypto4xx_core_device {
 
 struct crypto4xx_ctx {
 	struct crypto4xx_device *dev;
-	void *sa_in;
-	dma_addr_t sa_in_dma_addr;
-	void *sa_out;
-	dma_addr_t sa_out_dma_addr;
-	void *state_record;
-	dma_addr_t state_record_dma_addr;
+	struct dynamic_sa_ctl *sa_in;
+	struct dynamic_sa_ctl *sa_out;
+	__le32 iv_nonce;
 	u32 sa_len;
-	u32 offset_to_sr_ptr;           /* offset to state ptr, in dynamic sa */
-	u32 direction;
-	u32 next_hdr;
-	u32 save_iv;
-	u32 pd_ctl_len;
-	u32 pd_ctl;
-	u32 bypass;
-	u32 is_hash;
-	u32 hash_final;
-};
-
-struct crypto4xx_req_ctx {
-	struct crypto4xx_device *dev;	/* Device in which
-					operation to send to */
-	void *sa;
-	u32 sa_dma_addr;
-	u16 sa_len;
+	union {
+		struct crypto_aead *aead;
+	} sw_cipher;
 };
 
 struct crypto4xx_alg_common {
@@ -149,6 +138,7 @@ struct crypto4xx_alg_common {
 	union {
 		struct crypto_alg cipher;
 		struct ahash_alg hash;
+		struct aead_alg aead;
 	} u;
 };
 
@@ -158,43 +148,90 @@ struct crypto4xx_alg {
 	struct crypto4xx_device *dev;
 };
 
-static inline struct crypto4xx_alg *crypto_alg_to_crypto4xx_alg(
-	struct crypto_alg *x)
+int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size);
+void crypto4xx_free_sa(struct crypto4xx_ctx *ctx);
+void crypto4xx_free_ctx(struct crypto4xx_ctx *ctx);
+int crypto4xx_build_pd(struct crypto_async_request *req,
+		       struct crypto4xx_ctx *ctx,
+		       struct scatterlist *src,
+		       struct scatterlist *dst,
+		       const unsigned int datalen,
+		       const __le32 *iv, const u32 iv_len,
+		       const struct dynamic_sa_ctl *sa,
+		       const unsigned int sa_len,
+		       const unsigned int assoclen);
+int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_setkey_aes_cfb(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_setkey_aes_ecb(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_setkey_aes_ofb(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_setkey_rfc3686(struct crypto_ablkcipher *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_encrypt(struct ablkcipher_request *req);
+int crypto4xx_decrypt(struct ablkcipher_request *req);
+int crypto4xx_rfc3686_encrypt(struct ablkcipher_request *req);
+int crypto4xx_rfc3686_decrypt(struct ablkcipher_request *req);
+int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm);
+int crypto4xx_hash_digest(struct ahash_request *req);
+int crypto4xx_hash_final(struct ahash_request *req);
+int crypto4xx_hash_update(struct ahash_request *req);
+int crypto4xx_hash_init(struct ahash_request *req);
+
+/**
+ * Note: Only use this function to copy items that is word aligned.
+ */
+static inline void crypto4xx_memcpy_swab32(u32 *dst, const void *buf,
+					   size_t len)
 {
-	switch (x->cra_flags & CRYPTO_ALG_TYPE_MASK) {
-	case CRYPTO_ALG_TYPE_AHASH:
-		return container_of(__crypto_ahash_alg(x),
-				    struct crypto4xx_alg, alg.u.hash);
+	for (; len >= 4; buf += 4, len -= 4)
+		*dst++ = __swab32p((u32 *) buf);
+
+	if (len) {
+		const u8 *tmp = (u8 *)buf;
+
+		switch (len) {
+		case 3:
+			*dst = (tmp[2] << 16) |
+			       (tmp[1] << 8) |
+			       tmp[0];
+			break;
+		case 2:
+			*dst = (tmp[1] << 8) |
+			       tmp[0];
+			break;
+		case 1:
+			*dst = tmp[0];
+			break;
+		default:
+			break;
+		}
 	}
+}
 
-	return container_of(x, struct crypto4xx_alg, alg.u.cipher);
+static inline void crypto4xx_memcpy_from_le32(u32 *dst, const void *buf,
+					      size_t len)
+{
+	crypto4xx_memcpy_swab32(dst, buf, len);
 }
 
-extern int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size);
-extern void crypto4xx_free_sa(struct crypto4xx_ctx *ctx);
-extern u32 crypto4xx_alloc_sa_rctx(struct crypto4xx_ctx *ctx,
-				   struct crypto4xx_ctx *rctx);
-extern void crypto4xx_free_sa_rctx(struct crypto4xx_ctx *rctx);
-extern void crypto4xx_free_ctx(struct crypto4xx_ctx *ctx);
-extern u32 crypto4xx_alloc_state_record(struct crypto4xx_ctx *ctx);
-extern u32 get_dynamic_sa_offset_state_ptr_field(struct crypto4xx_ctx *ctx);
-extern u32 get_dynamic_sa_offset_key_field(struct crypto4xx_ctx *ctx);
-extern u32 get_dynamic_sa_iv_size(struct crypto4xx_ctx *ctx);
-extern void crypto4xx_memcpy_le(unsigned int *dst,
-				const unsigned char *buf, int len);
-extern u32 crypto4xx_build_pd(struct crypto_async_request *req,
-			      struct crypto4xx_ctx *ctx,
-			      struct scatterlist *src,
-			      struct scatterlist *dst,
-			      unsigned int datalen,
-			      void *iv, u32 iv_len);
-extern int crypto4xx_setkey_aes_cbc(struct crypto_ablkcipher *cipher,
-				    const u8 *key, unsigned int keylen);
-extern int crypto4xx_encrypt(struct ablkcipher_request *req);
-extern int crypto4xx_decrypt(struct ablkcipher_request *req);
-extern int crypto4xx_sha1_alg_init(struct crypto_tfm *tfm);
-extern int crypto4xx_hash_digest(struct ahash_request *req);
-extern int crypto4xx_hash_final(struct ahash_request *req);
-extern int crypto4xx_hash_update(struct ahash_request *req);
-extern int crypto4xx_hash_init(struct ahash_request *req);
+static inline void crypto4xx_memcpy_to_le32(__le32 *dst, const void *buf,
+					    size_t len)
+{
+	crypto4xx_memcpy_swab32((u32 *)dst, buf, len);
+}
+
+int crypto4xx_setauthsize_aead(struct crypto_aead *ciper,
+			       unsigned int authsize);
+int crypto4xx_setkey_aes_ccm(struct crypto_aead *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_encrypt_aes_ccm(struct aead_request *req);
+int crypto4xx_decrypt_aes_ccm(struct aead_request *req);
+int crypto4xx_setkey_aes_gcm(struct crypto_aead *cipher,
+			     const u8 *key, unsigned int keylen);
+int crypto4xx_encrypt_aes_gcm(struct aead_request *req);
+int crypto4xx_decrypt_aes_gcm(struct aead_request *req);
+
 #endif
diff --git a/drivers/crypto/amcc/crypto4xx_reg_def.h b/drivers/crypto/amcc/crypto4xx_reg_def.h
index 279b8725559f..0a22ec5d1a96 100644
--- a/drivers/crypto/amcc/crypto4xx_reg_def.h
+++ b/drivers/crypto/amcc/crypto4xx_reg_def.h
@@ -261,6 +261,9 @@ union ce_pd_ctl {
 	} bf;
 	u32 w;
 } __attribute__((packed));
+#define PD_CTL_HASH_FINAL	BIT(4)
+#define PD_CTL_PE_DONE		BIT(1)
+#define PD_CTL_HOST_READY	BIT(0)
 
 union ce_pd_ctl_len {
 	struct {
diff --git a/drivers/crypto/amcc/crypto4xx_sa.c b/drivers/crypto/amcc/crypto4xx_sa.c
deleted file mode 100644
index 69182e2cc3ea..000000000000
--- a/drivers/crypto/amcc/crypto4xx_sa.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/**
- * AMCC SoC PPC4xx Crypto Driver
- *
- * Copyright (c) 2008 Applied Micro Circuits Corporation.
- * All rights reserved. James Hsiao <jhsiao@amcc.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * @file crypto4xx_sa.c
- *
- * This file implements the security context
- * associate format.
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/mod_devicetable.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock_types.h>
-#include <linux/highmem.h>
-#include <linux/scatterlist.h>
-#include <linux/crypto.h>
-#include <crypto/algapi.h>
-#include <crypto/des.h>
-#include "crypto4xx_reg_def.h"
-#include "crypto4xx_sa.h"
-#include "crypto4xx_core.h"
-
-u32 get_dynamic_sa_offset_state_ptr_field(struct crypto4xx_ctx *ctx)
-{
-	u32 offset;
-	union dynamic_sa_contents cts;
-
-	if (ctx->direction == DIR_INBOUND)
-		cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents;
-	else
-		cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents;
-	offset = cts.bf.key_size
-		+ cts.bf.inner_size
-		+ cts.bf.outer_size
-		+ cts.bf.spi
-		+ cts.bf.seq_num0
-		+ cts.bf.seq_num1
-		+ cts.bf.seq_num_mask0
-		+ cts.bf.seq_num_mask1
-		+ cts.bf.seq_num_mask2
-		+ cts.bf.seq_num_mask3
-		+ cts.bf.iv0
-		+ cts.bf.iv1
-		+ cts.bf.iv2
-		+ cts.bf.iv3;
-
-	return sizeof(struct dynamic_sa_ctl) + offset * 4;
-}
-
-u32 get_dynamic_sa_iv_size(struct crypto4xx_ctx *ctx)
-{
-	union dynamic_sa_contents cts;
-
-	if (ctx->direction == DIR_INBOUND)
-		cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents;
-	else
-		cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents;
-	return (cts.bf.iv0 + cts.bf.iv1 + cts.bf.iv2 + cts.bf.iv3) * 4;
-}
-
-u32 get_dynamic_sa_offset_key_field(struct crypto4xx_ctx *ctx)
-{
-	union dynamic_sa_contents cts;
-
-	if (ctx->direction == DIR_INBOUND)
-		cts.w = ((struct dynamic_sa_ctl *) ctx->sa_in)->sa_contents;
-	else
-		cts.w = ((struct dynamic_sa_ctl *) ctx->sa_out)->sa_contents;
-
-	return sizeof(struct dynamic_sa_ctl);
-}
diff --git a/drivers/crypto/amcc/crypto4xx_sa.h b/drivers/crypto/amcc/crypto4xx_sa.h
index 1352d58d4e34..a4d403528db5 100644
--- a/drivers/crypto/amcc/crypto4xx_sa.h
+++ b/drivers/crypto/amcc/crypto4xx_sa.h
@@ -55,6 +55,8 @@ union dynamic_sa_contents {
 #define SA_OP_GROUP_BASIC			0
 #define SA_OPCODE_ENCRYPT			0
 #define SA_OPCODE_DECRYPT			0
+#define SA_OPCODE_ENCRYPT_HASH			1
+#define SA_OPCODE_HASH_DECRYPT			1
 #define SA_OPCODE_HASH				3
 #define SA_CIPHER_ALG_DES			0
 #define SA_CIPHER_ALG_3DES			1
@@ -65,6 +67,8 @@ union dynamic_sa_contents {
 
 #define SA_HASH_ALG_MD5				0
 #define SA_HASH_ALG_SHA1			1
+#define SA_HASH_ALG_GHASH			12
+#define SA_HASH_ALG_CBC_MAC			14
 #define SA_HASH_ALG_NULL			15
 #define SA_HASH_ALG_SHA1_DIGEST_SIZE		20
 
@@ -112,6 +116,9 @@ union sa_command_0 {
 
 #define CRYPTO_MODE_ECB				0
 #define CRYPTO_MODE_CBC				1
+#define CRYPTO_MODE_OFB				2
+#define CRYPTO_MODE_CFB				3
+#define CRYPTO_MODE_CTR				4
 
 #define CRYPTO_FEEDBACK_MODE_NO_FB		0
 #define CRYPTO_FEEDBACK_MODE_64BIT_OFB		0
@@ -169,7 +176,7 @@ union sa_command_1 {
 } __attribute__((packed));
 
 struct dynamic_sa_ctl {
-	u32 sa_contents;
+	union dynamic_sa_contents sa_contents;
 	union sa_command_0 sa_command_0;
 	union sa_command_1 sa_command_1;
 } __attribute__((packed));
@@ -178,9 +185,12 @@ struct dynamic_sa_ctl {
  * State Record for Security Association (SA)
  */
 struct  sa_state_record {
-	u32 save_iv[4];
-	u32 save_hash_byte_cnt[2];
-	u32 save_digest[16];
+	__le32 save_iv[4];
+	__le32 save_hash_byte_cnt[2];
+	union {
+		u32 save_digest[16]; /* for MD5/SHA */
+		__le32 save_digest_le32[16]; /* GHASH / CBC */
+	};
 } __attribute__((packed));
 
 /**
@@ -189,8 +199,8 @@ struct  sa_state_record {
  */
 struct dynamic_sa_aes128 {
 	struct dynamic_sa_ctl	ctrl;
-	u32 key[4];
-	u32 iv[4]; /* for CBC, OFC, and CFB mode */
+	__le32 key[4];
+	__le32 iv[4]; /* for CBC, OFC, and CFB mode */
 	u32 state_ptr;
 	u32 reserved;
 } __attribute__((packed));
@@ -203,8 +213,8 @@ struct dynamic_sa_aes128 {
  */
 struct dynamic_sa_aes192 {
 	struct dynamic_sa_ctl ctrl;
-	u32 key[6];
-	u32 iv[4]; /* for CBC, OFC, and CFB mode */
+	__le32 key[6];
+	__le32 iv[4]; /* for CBC, OFC, and CFB mode */
 	u32 state_ptr;
 	u32 reserved;
 } __attribute__((packed));
@@ -217,8 +227,8 @@ struct dynamic_sa_aes192 {
  */
 struct dynamic_sa_aes256 {
 	struct dynamic_sa_ctl ctrl;
-	u32 key[8];
-	u32 iv[4]; /* for CBC, OFC, and CFB mode */
+	__le32 key[8];
+	__le32 iv[4]; /* for CBC, OFC, and CFB mode */
 	u32 state_ptr;
 	u32 reserved;
 } __attribute__((packed));
@@ -228,16 +238,81 @@ struct dynamic_sa_aes256 {
 #define SA_AES_CONTENTS		0x3e000002
 
 /**
+ * Security Association (SA) for AES128 CCM
+ */
+struct dynamic_sa_aes128_ccm {
+	struct dynamic_sa_ctl ctrl;
+	__le32 key[4];
+	__le32 iv[4];
+	u32 state_ptr;
+	u32 reserved;
+} __packed;
+#define SA_AES128_CCM_LEN	(sizeof(struct dynamic_sa_aes128_ccm)/4)
+#define SA_AES128_CCM_CONTENTS	0x3e000042
+#define SA_AES_CCM_CONTENTS	0x3e000002
+
+/**
+ * Security Association (SA) for AES128_GCM
+ */
+struct dynamic_sa_aes128_gcm {
+	struct dynamic_sa_ctl ctrl;
+	__le32 key[4];
+	__le32 inner_digest[4];
+	__le32 iv[4];
+	u32 state_ptr;
+	u32 reserved;
+} __packed;
+
+#define SA_AES128_GCM_LEN	(sizeof(struct dynamic_sa_aes128_gcm)/4)
+#define SA_AES128_GCM_CONTENTS	0x3e000442
+#define SA_AES_GCM_CONTENTS	0x3e000402
+
+/**
  * Security Association (SA) for HASH160: HMAC-SHA1
  */
 struct dynamic_sa_hash160 {
 	struct dynamic_sa_ctl ctrl;
-	u32 inner_digest[5];
-	u32 outer_digest[5];
+	__le32 inner_digest[5];
+	__le32 outer_digest[5];
 	u32 state_ptr;
 	u32 reserved;
 } __attribute__((packed));
 #define SA_HASH160_LEN		(sizeof(struct dynamic_sa_hash160)/4)
 #define SA_HASH160_CONTENTS     0x2000a502
 
+static inline u32
+get_dynamic_sa_offset_state_ptr_field(struct dynamic_sa_ctl *cts)
+{
+	u32 offset;
+
+	offset = cts->sa_contents.bf.key_size
+		+ cts->sa_contents.bf.inner_size
+		+ cts->sa_contents.bf.outer_size
+		+ cts->sa_contents.bf.spi
+		+ cts->sa_contents.bf.seq_num0
+		+ cts->sa_contents.bf.seq_num1
+		+ cts->sa_contents.bf.seq_num_mask0
+		+ cts->sa_contents.bf.seq_num_mask1
+		+ cts->sa_contents.bf.seq_num_mask2
+		+ cts->sa_contents.bf.seq_num_mask3
+		+ cts->sa_contents.bf.iv0
+		+ cts->sa_contents.bf.iv1
+		+ cts->sa_contents.bf.iv2
+		+ cts->sa_contents.bf.iv3;
+
+	return sizeof(struct dynamic_sa_ctl) + offset * 4;
+}
+
+static inline __le32 *get_dynamic_sa_key_field(struct dynamic_sa_ctl *cts)
+{
+	return (__le32 *) ((unsigned long)cts + sizeof(struct dynamic_sa_ctl));
+}
+
+static inline __le32 *get_dynamic_sa_inner_digest(struct dynamic_sa_ctl *cts)
+{
+	return (__le32 *) ((unsigned long)cts +
+		sizeof(struct dynamic_sa_ctl) +
+		cts->sa_contents.bf.key_size * 4);
+}
+
 #endif
diff --git a/drivers/crypto/atmel-aes-regs.h b/drivers/crypto/atmel-aes-regs.h
index 7694679802b3..62f9d3038757 100644
--- a/drivers/crypto/atmel-aes-regs.h
+++ b/drivers/crypto/atmel-aes-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATMEL_AES_REGS_H__
 #define __ATMEL_AES_REGS_H__
 
diff --git a/drivers/crypto/atmel-aes.c b/drivers/crypto/atmel-aes.c
index 29e20c37f3a6..691c6465b71e 100644
--- a/drivers/crypto/atmel-aes.c
+++ b/drivers/crypto/atmel-aes.c
@@ -36,6 +36,7 @@
 #include <crypto/scatterwalk.h>
 #include <crypto/algapi.h>
 #include <crypto/aes.h>
+#include <crypto/gcm.h>
 #include <crypto/xts.h>
 #include <crypto/internal/aead.h>
 #include <linux/platform_data/crypto-atmel.h>
@@ -76,12 +77,11 @@
 				 AES_FLAGS_ENCRYPT |		\
 				 AES_FLAGS_GTAGEN)
 
-#define AES_FLAGS_INIT		BIT(2)
 #define AES_FLAGS_BUSY		BIT(3)
 #define AES_FLAGS_DUMP_REG	BIT(4)
 #define AES_FLAGS_OWN_SHA	BIT(5)
 
-#define AES_FLAGS_PERSISTENT	(AES_FLAGS_INIT | AES_FLAGS_BUSY)
+#define AES_FLAGS_PERSISTENT	AES_FLAGS_BUSY
 
 #define ATMEL_AES_QUEUE_LENGTH	50
 
@@ -110,6 +110,7 @@ struct atmel_aes_base_ctx {
 	int			keylen;
 	u32			key[AES_KEYSIZE_256 / sizeof(u32)];
 	u16			block_size;
+	bool			is_aead;
 };
 
 struct atmel_aes_ctx {
@@ -156,6 +157,7 @@ struct atmel_aes_authenc_ctx {
 
 struct atmel_aes_reqctx {
 	unsigned long		mode;
+	u32			lastc[AES_BLOCK_SIZE / sizeof(u32)];
 };
 
 #ifdef CONFIG_CRYPTO_DEV_ATMEL_AUTHENC
@@ -448,11 +450,8 @@ static int atmel_aes_hw_init(struct atmel_aes_dev *dd)
 	if (err)
 		return err;
 
-	if (!(dd->flags & AES_FLAGS_INIT)) {
-		atmel_aes_write(dd, AES_CR, AES_CR_SWRST);
-		atmel_aes_write(dd, AES_MR, 0xE << AES_MR_CKEY_OFFSET);
-		dd->flags |= AES_FLAGS_INIT;
-	}
+	atmel_aes_write(dd, AES_CR, AES_CR_SWRST);
+	atmel_aes_write(dd, AES_MR, 0xE << AES_MR_CKEY_OFFSET);
 
 	return 0;
 }
@@ -497,12 +496,34 @@ static void atmel_aes_authenc_complete(struct atmel_aes_dev *dd, int err);
 static inline int atmel_aes_complete(struct atmel_aes_dev *dd, int err)
 {
 #ifdef CONFIG_CRYPTO_DEV_ATMEL_AUTHENC
-	atmel_aes_authenc_complete(dd, err);
+	if (dd->ctx->is_aead)
+		atmel_aes_authenc_complete(dd, err);
 #endif
 
 	clk_disable(dd->iclk);
 	dd->flags &= ~AES_FLAGS_BUSY;
 
+	if (!dd->ctx->is_aead) {
+		struct ablkcipher_request *req =
+			ablkcipher_request_cast(dd->areq);
+		struct atmel_aes_reqctx *rctx = ablkcipher_request_ctx(req);
+		struct crypto_ablkcipher *ablkcipher =
+			crypto_ablkcipher_reqtfm(req);
+		int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+
+		if (rctx->mode & AES_FLAGS_ENCRYPT) {
+			scatterwalk_map_and_copy(req->info, req->dst,
+				req->nbytes - ivsize, ivsize, 0);
+		} else {
+			if (req->src == req->dst) {
+				memcpy(req->info, rctx->lastc, ivsize);
+			} else {
+				scatterwalk_map_and_copy(req->info, req->src,
+					req->nbytes - ivsize, ivsize, 0);
+			}
+		}
+	}
+
 	if (dd->is_async)
 		dd->areq->complete(dd->areq, err);
 
@@ -1071,11 +1092,11 @@ static int atmel_aes_ctr_start(struct atmel_aes_dev *dd)
 
 static int atmel_aes_crypt(struct ablkcipher_request *req, unsigned long mode)
 {
-	struct atmel_aes_base_ctx *ctx;
+	struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+	struct atmel_aes_base_ctx *ctx = crypto_ablkcipher_ctx(ablkcipher);
 	struct atmel_aes_reqctx *rctx;
 	struct atmel_aes_dev *dd;
 
-	ctx = crypto_ablkcipher_ctx(crypto_ablkcipher_reqtfm(req));
 	switch (mode & AES_FLAGS_OPMODE_MASK) {
 	case AES_FLAGS_CFB8:
 		ctx->block_size = CFB8_BLOCK_SIZE;
@@ -1097,6 +1118,7 @@ static int atmel_aes_crypt(struct ablkcipher_request *req, unsigned long mode)
 		ctx->block_size = AES_BLOCK_SIZE;
 		break;
 	}
+	ctx->is_aead = false;
 
 	dd = atmel_aes_find_dev(ctx);
 	if (!dd)
@@ -1105,6 +1127,13 @@ static int atmel_aes_crypt(struct ablkcipher_request *req, unsigned long mode)
 	rctx = ablkcipher_request_ctx(req);
 	rctx->mode = mode;
 
+	if (!(mode & AES_FLAGS_ENCRYPT) && (req->src == req->dst)) {
+		int ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+
+		scatterwalk_map_and_copy(rctx->lastc, req->src,
+			(req->nbytes - ivsize), ivsize, 0);
+	}
+
 	return atmel_aes_handle_queue(dd, &req->base);
 }
 
@@ -1236,10 +1265,6 @@ static int atmel_aes_ctr_cra_init(struct crypto_tfm *tfm)
 	return 0;
 }
 
-static void atmel_aes_cra_exit(struct crypto_tfm *tfm)
-{
-}
-
 static struct crypto_alg aes_algs[] = {
 {
 	.cra_name		= "ecb(aes)",
@@ -1252,7 +1277,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1272,7 +1296,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1293,7 +1316,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1314,7 +1336,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1335,7 +1356,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1356,7 +1376,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1377,7 +1396,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1398,7 +1416,6 @@ static struct crypto_alg aes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_ctr_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1421,7 +1438,6 @@ static struct crypto_alg aes_cfb64_alg = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= AES_MIN_KEY_SIZE,
 		.max_keysize	= AES_MAX_KEY_SIZE,
@@ -1532,7 +1548,7 @@ static int atmel_aes_gcm_start(struct atmel_aes_dev *dd)
 	if (err)
 		return atmel_aes_complete(dd, err);
 
-	if (likely(ivsize == 12)) {
+	if (likely(ivsize == GCM_AES_IV_SIZE)) {
 		memcpy(ctx->j0, iv, ivsize);
 		ctx->j0[3] = cpu_to_be32(1);
 		return atmel_aes_gcm_process(dd);
@@ -1739,6 +1755,7 @@ static int atmel_aes_gcm_crypt(struct aead_request *req,
 
 	ctx = crypto_aead_ctx(crypto_aead_reqtfm(req));
 	ctx->block_size = AES_BLOCK_SIZE;
+	ctx->is_aead = true;
 
 	dd = atmel_aes_find_dev(ctx);
 	if (!dd)
@@ -1808,19 +1825,13 @@ static int atmel_aes_gcm_init(struct crypto_aead *tfm)
 	return 0;
 }
 
-static void atmel_aes_gcm_exit(struct crypto_aead *tfm)
-{
-
-}
-
 static struct aead_alg aes_gcm_alg = {
 	.setkey		= atmel_aes_gcm_setkey,
 	.setauthsize	= atmel_aes_gcm_setauthsize,
 	.encrypt	= atmel_aes_gcm_encrypt,
 	.decrypt	= atmel_aes_gcm_decrypt,
 	.init		= atmel_aes_gcm_init,
-	.exit		= atmel_aes_gcm_exit,
-	.ivsize		= 12,
+	.ivsize		= GCM_AES_IV_SIZE,
 	.maxauthsize	= AES_BLOCK_SIZE,
 
 	.base = {
@@ -1955,7 +1966,6 @@ static struct crypto_alg aes_xts_alg = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_aes_xts_cra_init,
-	.cra_exit		= atmel_aes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2 * AES_MIN_KEY_SIZE,
 		.max_keysize	= 2 * AES_MAX_KEY_SIZE,
@@ -2223,6 +2233,7 @@ static int atmel_aes_authenc_crypt(struct aead_request *req,
 
 	rctx->base.mode = mode;
 	ctx->block_size = AES_BLOCK_SIZE;
+	ctx->is_aead = true;
 
 	dd = atmel_aes_find_dev(ctx);
 	if (!dd)
@@ -2382,7 +2393,6 @@ static int atmel_aes_dma_init(struct atmel_aes_dev *dd,
 			      struct crypto_platform_data *pdata)
 {
 	struct at_dma_slave *slave;
-	int err = -ENOMEM;
 	dma_cap_mask_t mask;
 
 	dma_cap_zero(mask);
@@ -2407,7 +2417,7 @@ err_dma_out:
 	dma_release_channel(dd->src.chan);
 err_dma_in:
 	dev_warn(dd->dev, "no DMA channel available\n");
-	return err;
+	return -ENODEV;
 }
 
 static void atmel_aes_dma_cleanup(struct atmel_aes_dev *dd)
@@ -2658,8 +2668,6 @@ static int atmel_aes_probe(struct platform_device *pdev)
 
 	crypto_init_queue(&aes_dd->queue, ATMEL_AES_QUEUE_LENGTH);
 
-	aes_dd->irq = -1;
-
 	/* Get the base address */
 	aes_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!aes_res) {
diff --git a/drivers/crypto/atmel-sha-regs.h b/drivers/crypto/atmel-sha-regs.h
index 1b0eba4a2706..b2b5e634e80f 100644
--- a/drivers/crypto/atmel-sha-regs.h
+++ b/drivers/crypto/atmel-sha-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATMEL_SHA_REGS_H__
 #define __ATMEL_SHA_REGS_H__
 
diff --git a/drivers/crypto/atmel-sha.c b/drivers/crypto/atmel-sha.c
index 3e2f41b3eaf3..8874aa5ca0f7 100644
--- a/drivers/crypto/atmel-sha.c
+++ b/drivers/crypto/atmel-sha.c
@@ -2628,7 +2628,6 @@ static bool atmel_sha_filter(struct dma_chan *chan, void *slave)
 static int atmel_sha_dma_init(struct atmel_sha_dev *dd,
 				struct crypto_platform_data *pdata)
 {
-	int err = -ENOMEM;
 	dma_cap_mask_t mask_in;
 
 	/* Try to grab DMA channel */
@@ -2639,7 +2638,7 @@ static int atmel_sha_dma_init(struct atmel_sha_dev *dd,
 			atmel_sha_filter, &pdata->dma_slave->rxdata, dd->dev, "tx");
 	if (!dd->dma_lch_in.chan) {
 		dev_warn(dd->dev, "no DMA channel available\n");
-		return err;
+		return -ENODEV;
 	}
 
 	dd->dma_lch_in.dma_conf.direction = DMA_MEM_TO_DEV;
@@ -2778,8 +2777,6 @@ static int atmel_sha_probe(struct platform_device *pdev)
 
 	crypto_init_queue(&sha_dd->queue, ATMEL_SHA_QUEUE_LENGTH);
 
-	sha_dd->irq = -1;
-
 	/* Get the base address */
 	sha_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!sha_res) {
diff --git a/drivers/crypto/atmel-tdes-regs.h b/drivers/crypto/atmel-tdes-regs.h
index f86734d0fda4..fbd905720dfa 100644
--- a/drivers/crypto/atmel-tdes-regs.h
+++ b/drivers/crypto/atmel-tdes-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATMEL_TDES_REGS_H__
 #define __ATMEL_TDES_REGS_H__
 
diff --git a/drivers/crypto/atmel-tdes.c b/drivers/crypto/atmel-tdes.c
index f4b335dda568..592124f8382b 100644
--- a/drivers/crypto/atmel-tdes.c
+++ b/drivers/crypto/atmel-tdes.c
@@ -720,7 +720,6 @@ static bool atmel_tdes_filter(struct dma_chan *chan, void *slave)
 static int atmel_tdes_dma_init(struct atmel_tdes_dev *dd,
 			struct crypto_platform_data *pdata)
 {
-	int err = -ENOMEM;
 	dma_cap_mask_t mask;
 
 	dma_cap_zero(mask);
@@ -765,7 +764,7 @@ err_dma_out:
 	dma_release_channel(dd->dma_lch_in.chan);
 err_dma_in:
 	dev_warn(dd->dev, "no DMA channel available\n");
-	return err;
+	return -ENODEV;
 }
 
 static void atmel_tdes_dma_cleanup(struct atmel_tdes_dev *dd)
@@ -912,10 +911,6 @@ static int atmel_tdes_cra_init(struct crypto_tfm *tfm)
 	return 0;
 }
 
-static void atmel_tdes_cra_exit(struct crypto_tfm *tfm)
-{
-}
-
 static struct crypto_alg tdes_algs[] = {
 {
 	.cra_name		= "ecb(des)",
@@ -928,7 +923,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -948,7 +942,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -969,7 +962,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -990,7 +982,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -1011,7 +1002,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -1032,7 +1022,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -1053,7 +1042,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= DES_KEY_SIZE,
 		.max_keysize	= DES_KEY_SIZE,
@@ -1074,7 +1062,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2 * DES_KEY_SIZE,
 		.max_keysize	= 3 * DES_KEY_SIZE,
@@ -1094,7 +1081,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2*DES_KEY_SIZE,
 		.max_keysize	= 3*DES_KEY_SIZE,
@@ -1115,7 +1101,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2*DES_KEY_SIZE,
 		.max_keysize	= 2*DES_KEY_SIZE,
@@ -1136,7 +1121,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2*DES_KEY_SIZE,
 		.max_keysize	= 2*DES_KEY_SIZE,
@@ -1157,7 +1141,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2*DES_KEY_SIZE,
 		.max_keysize	= 2*DES_KEY_SIZE,
@@ -1178,7 +1161,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2*DES_KEY_SIZE,
 		.max_keysize	= 2*DES_KEY_SIZE,
@@ -1199,7 +1181,6 @@ static struct crypto_alg tdes_algs[] = {
 	.cra_type		= &crypto_ablkcipher_type,
 	.cra_module		= THIS_MODULE,
 	.cra_init		= atmel_tdes_cra_init,
-	.cra_exit		= atmel_tdes_cra_exit,
 	.cra_u.ablkcipher = {
 		.min_keysize	= 2*DES_KEY_SIZE,
 		.max_keysize	= 3*DES_KEY_SIZE,
@@ -1382,8 +1363,6 @@ static int atmel_tdes_probe(struct platform_device *pdev)
 
 	crypto_init_queue(&tdes_dd->queue, ATMEL_TDES_QUEUE_LENGTH);
 
-	tdes_dd->irq = -1;
-
 	/* Get the base address */
 	tdes_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!tdes_res) {
diff --git a/drivers/crypto/axis/artpec6_crypto.c b/drivers/crypto/axis/artpec6_crypto.c
index d9fbbf01062b..456278440863 100644
--- a/drivers/crypto/axis/artpec6_crypto.c
+++ b/drivers/crypto/axis/artpec6_crypto.c
@@ -349,8 +349,6 @@ struct artpec6_crypto_aead_req_ctx {
 /* The crypto framework makes it hard to avoid this global. */
 static struct device *artpec6_crypto_dev;
 
-static struct dentry *dbgfs_root;
-
 #ifdef CONFIG_FAULT_INJECTION
 static DECLARE_FAULT_ATTR(artpec6_crypto_fail_status_read);
 static DECLARE_FAULT_ATTR(artpec6_crypto_fail_dma_array_full);
@@ -2074,9 +2072,9 @@ static void artpec6_crypto_process_queue(struct artpec6_crypto *ac)
 		del_timer(&ac->timer);
 }
 
-static void artpec6_crypto_timeout(unsigned long data)
+static void artpec6_crypto_timeout(struct timer_list *t)
 {
-	struct artpec6_crypto *ac = (struct artpec6_crypto *) data;
+	struct artpec6_crypto *ac = from_timer(ac, t, timer);
 
 	dev_info_ratelimited(artpec6_crypto_dev, "timeout\n");
 
@@ -2984,6 +2982,8 @@ struct dbgfs_u32 {
 	char *desc;
 };
 
+static struct dentry *dbgfs_root;
+
 static void artpec6_crypto_init_debugfs(void)
 {
 	dbgfs_root = debugfs_create_dir("artpec6_crypto", NULL);
@@ -3063,7 +3063,7 @@ static int artpec6_crypto_probe(struct platform_device *pdev)
 	spin_lock_init(&ac->queue_lock);
 	INIT_LIST_HEAD(&ac->queue);
 	INIT_LIST_HEAD(&ac->pending);
-	setup_timer(&ac->timer, artpec6_crypto_timeout, (unsigned long) ac);
+	timer_setup(&ac->timer, artpec6_crypto_timeout, 0);
 
 	ac->base = base;
 
diff --git a/drivers/crypto/bcm/cipher.c b/drivers/crypto/bcm/cipher.c
index 8685c7e4debd..ce70b44d0fb6 100644
--- a/drivers/crypto/bcm/cipher.c
+++ b/drivers/crypto/bcm/cipher.c
@@ -256,6 +256,44 @@ spu_ablkcipher_tx_sg_create(struct brcm_message *mssg,
 	return 0;
 }
 
+static int mailbox_send_message(struct brcm_message *mssg, u32 flags,
+				u8 chan_idx)
+{
+	int err;
+	int retry_cnt = 0;
+	struct device *dev = &(iproc_priv.pdev->dev);
+
+	err = mbox_send_message(iproc_priv.mbox[chan_idx], mssg);
+	if (flags & CRYPTO_TFM_REQ_MAY_SLEEP) {
+		while ((err == -ENOBUFS) && (retry_cnt < SPU_MB_RETRY_MAX)) {
+			/*
+			 * Mailbox queue is full. Since MAY_SLEEP is set, assume
+			 * not in atomic context and we can wait and try again.
+			 */
+			retry_cnt++;
+			usleep_range(MBOX_SLEEP_MIN, MBOX_SLEEP_MAX);
+			err = mbox_send_message(iproc_priv.mbox[chan_idx],
+						mssg);
+			atomic_inc(&iproc_priv.mb_no_spc);
+		}
+	}
+	if (err < 0) {
+		atomic_inc(&iproc_priv.mb_send_fail);
+		return err;
+	}
+
+	/* Check error returned by mailbox controller */
+	err = mssg->error;
+	if (unlikely(err < 0)) {
+		dev_err(dev, "message error %d", err);
+		/* Signal txdone for mailbox channel */
+	}
+
+	/* Signal txdone for mailbox channel */
+	mbox_client_txdone(iproc_priv.mbox[chan_idx], err);
+	return err;
+}
+
 /**
  * handle_ablkcipher_req() - Submit as much of a block cipher request as fits in
  * a single SPU request message, starting at the current position in the request
@@ -293,7 +331,6 @@ static int handle_ablkcipher_req(struct iproc_reqctx_s *rctx)
 	u32 pad_len;		/* total length of all padding */
 	bool update_key = false;
 	struct brcm_message *mssg;	/* mailbox message */
-	int retry_cnt = 0;
 
 	/* number of entries in src and dst sg in mailbox message. */
 	u8 rx_frag_num = 2;	/* response header and STATUS */
@@ -462,24 +499,9 @@ static int handle_ablkcipher_req(struct iproc_reqctx_s *rctx)
 	if (err)
 		return err;
 
-	err = mbox_send_message(iproc_priv.mbox[rctx->chan_idx], mssg);
-	if (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) {
-		while ((err == -ENOBUFS) && (retry_cnt < SPU_MB_RETRY_MAX)) {
-			/*
-			 * Mailbox queue is full. Since MAY_SLEEP is set, assume
-			 * not in atomic context and we can wait and try again.
-			 */
-			retry_cnt++;
-			usleep_range(MBOX_SLEEP_MIN, MBOX_SLEEP_MAX);
-			err = mbox_send_message(iproc_priv.mbox[rctx->chan_idx],
-						mssg);
-			atomic_inc(&iproc_priv.mb_no_spc);
-		}
-	}
-	if (unlikely(err < 0)) {
-		atomic_inc(&iproc_priv.mb_send_fail);
+	err = mailbox_send_message(mssg, req->base.flags, rctx->chan_idx);
+	if (unlikely(err < 0))
 		return err;
-	}
 
 	return -EINPROGRESS;
 }
@@ -710,7 +732,6 @@ static int handle_ahash_req(struct iproc_reqctx_s *rctx)
 	u32 spu_hdr_len;
 	unsigned int digestsize;
 	u16 rem = 0;
-	int retry_cnt = 0;
 
 	/*
 	 * number of entries in src and dst sg. Always includes SPU msg header.
@@ -904,24 +925,10 @@ static int handle_ahash_req(struct iproc_reqctx_s *rctx)
 	if (err)
 		return err;
 
-	err = mbox_send_message(iproc_priv.mbox[rctx->chan_idx], mssg);
-	if (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) {
-		while ((err == -ENOBUFS) && (retry_cnt < SPU_MB_RETRY_MAX)) {
-			/*
-			 * Mailbox queue is full. Since MAY_SLEEP is set, assume
-			 * not in atomic context and we can wait and try again.
-			 */
-			retry_cnt++;
-			usleep_range(MBOX_SLEEP_MIN, MBOX_SLEEP_MAX);
-			err = mbox_send_message(iproc_priv.mbox[rctx->chan_idx],
-						mssg);
-			atomic_inc(&iproc_priv.mb_no_spc);
-		}
-	}
-	if (err < 0) {
-		atomic_inc(&iproc_priv.mb_send_fail);
+	err = mailbox_send_message(mssg, req->base.flags, rctx->chan_idx);
+	if (unlikely(err < 0))
 		return err;
-	}
+
 	return -EINPROGRESS;
 }
 
@@ -1320,7 +1327,6 @@ static int handle_aead_req(struct iproc_reqctx_s *rctx)
 	int assoc_nents = 0;
 	bool incl_icv = false;
 	unsigned int digestsize = ctx->digestsize;
-	int retry_cnt = 0;
 
 	/* number of entries in src and dst sg. Always includes SPU msg header.
 	 */
@@ -1367,11 +1373,11 @@ static int handle_aead_req(struct iproc_reqctx_s *rctx)
 		 * expects AAD to include just SPI and seqno. So
 		 * subtract off the IV len.
 		 */
-		aead_parms.assoc_size -= GCM_ESP_IV_SIZE;
+		aead_parms.assoc_size -= GCM_RFC4106_IV_SIZE;
 
 		if (rctx->is_encrypt) {
 			aead_parms.return_iv = true;
-			aead_parms.ret_iv_len = GCM_ESP_IV_SIZE;
+			aead_parms.ret_iv_len = GCM_RFC4106_IV_SIZE;
 			aead_parms.ret_iv_off = GCM_ESP_SALT_SIZE;
 		}
 	} else {
@@ -1558,24 +1564,9 @@ static int handle_aead_req(struct iproc_reqctx_s *rctx)
 	if (err)
 		return err;
 
-	err = mbox_send_message(iproc_priv.mbox[rctx->chan_idx], mssg);
-	if (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) {
-		while ((err == -ENOBUFS) && (retry_cnt < SPU_MB_RETRY_MAX)) {
-			/*
-			 * Mailbox queue is full. Since MAY_SLEEP is set, assume
-			 * not in atomic context and we can wait and try again.
-			 */
-			retry_cnt++;
-			usleep_range(MBOX_SLEEP_MIN, MBOX_SLEEP_MAX);
-			err = mbox_send_message(iproc_priv.mbox[rctx->chan_idx],
-						mssg);
-			atomic_inc(&iproc_priv.mb_no_spc);
-		}
-	}
-	if (err < 0) {
-		atomic_inc(&iproc_priv.mb_send_fail);
+	err = mailbox_send_message(mssg, req->base.flags, rctx->chan_idx);
+	if (unlikely(err < 0))
 		return err;
-	}
 
 	return -EINPROGRESS;
 }
@@ -3255,7 +3246,7 @@ static struct iproc_alg_s driver_algs[] = {
 			.cra_flags = CRYPTO_ALG_NEED_FALLBACK
 		 },
 		 .setkey = aead_gcm_esp_setkey,
-		 .ivsize = GCM_ESP_IV_SIZE,
+		 .ivsize = GCM_RFC4106_IV_SIZE,
 		 .maxauthsize = AES_BLOCK_SIZE,
 	 },
 	 .cipher_info = {
@@ -3301,7 +3292,7 @@ static struct iproc_alg_s driver_algs[] = {
 			.cra_flags = CRYPTO_ALG_NEED_FALLBACK
 		 },
 		 .setkey = rfc4543_gcm_esp_setkey,
-		 .ivsize = GCM_ESP_IV_SIZE,
+		 .ivsize = GCM_RFC4106_IV_SIZE,
 		 .maxauthsize = AES_BLOCK_SIZE,
 	 },
 	 .cipher_info = {
@@ -4537,7 +4528,7 @@ static int spu_mb_init(struct device *dev)
 	mcl->dev = dev;
 	mcl->tx_block = false;
 	mcl->tx_tout = 0;
-	mcl->knows_txdone = false;
+	mcl->knows_txdone = true;
 	mcl->rx_callback = spu_rx_callback;
 	mcl->tx_done = NULL;
 
@@ -4818,7 +4809,6 @@ static int spu_dt_read(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct spu_hw *spu = &iproc_priv.spu;
 	struct resource *spu_ctrl_regs;
-	const struct of_device_id *match;
 	const struct spu_type_subtype *matched_spu_type;
 	struct device_node *dn = pdev->dev.of_node;
 	int err, i;
@@ -4826,14 +4816,12 @@ static int spu_dt_read(struct platform_device *pdev)
 	/* Count number of mailbox channels */
 	spu->num_chan = of_count_phandle_with_args(dn, "mboxes", "#mbox-cells");
 
-	match = of_match_device(of_match_ptr(bcm_spu_dt_ids), dev);
-	if (!match) {
+	matched_spu_type = of_device_get_match_data(dev);
+	if (!matched_spu_type) {
 		dev_err(&pdev->dev, "Failed to match device\n");
 		return -ENODEV;
 	}
 
-	matched_spu_type = match->data;
-
 	spu->spu_type = matched_spu_type->type;
 	spu->spu_subtype = matched_spu_type->subtype;
 
diff --git a/drivers/crypto/bcm/cipher.h b/drivers/crypto/bcm/cipher.h
index 57a55eb2a255..763c425c41ca 100644
--- a/drivers/crypto/bcm/cipher.h
+++ b/drivers/crypto/bcm/cipher.h
@@ -23,6 +23,7 @@
 #include <crypto/aes.h>
 #include <crypto/internal/hash.h>
 #include <crypto/aead.h>
+#include <crypto/gcm.h>
 #include <crypto/sha.h>
 #include <crypto/sha3.h>
 
@@ -39,8 +40,6 @@
 #define ARC4_STATE_SIZE     4
 
 #define CCM_AES_IV_SIZE    16
-#define GCM_AES_IV_SIZE    12
-#define GCM_ESP_IV_SIZE     8
 #define CCM_ESP_IV_SIZE     8
 #define RFC4543_ICV_SIZE   16
 
diff --git a/drivers/crypto/bcm/util.c b/drivers/crypto/bcm/util.c
index 430c5570ea87..d543c010ccd9 100644
--- a/drivers/crypto/bcm/util.c
+++ b/drivers/crypto/bcm/util.c
@@ -271,7 +271,7 @@ int do_shash(unsigned char *name, unsigned char *result,
 	hash = crypto_alloc_shash(name, 0, 0);
 	if (IS_ERR(hash)) {
 		rc = PTR_ERR(hash);
-		pr_err("%s: Crypto %s allocation error %d", __func__, name, rc);
+		pr_err("%s: Crypto %s allocation error %d\n", __func__, name, rc);
 		return rc;
 	}
 
@@ -279,7 +279,7 @@ int do_shash(unsigned char *name, unsigned char *result,
 	sdesc = kmalloc(size, GFP_KERNEL);
 	if (!sdesc) {
 		rc = -ENOMEM;
-		pr_err("%s: Memory allocation failure", __func__);
+		pr_err("%s: Memory allocation failure\n", __func__);
 		goto do_shash_err;
 	}
 	sdesc->shash.tfm = hash;
@@ -288,31 +288,31 @@ int do_shash(unsigned char *name, unsigned char *result,
 	if (key_len > 0) {
 		rc = crypto_shash_setkey(hash, key, key_len);
 		if (rc) {
-			pr_err("%s: Could not setkey %s shash", __func__, name);
+			pr_err("%s: Could not setkey %s shash\n", __func__, name);
 			goto do_shash_err;
 		}
 	}
 
 	rc = crypto_shash_init(&sdesc->shash);
 	if (rc) {
-		pr_err("%s: Could not init %s shash", __func__, name);
+		pr_err("%s: Could not init %s shash\n", __func__, name);
 		goto do_shash_err;
 	}
 	rc = crypto_shash_update(&sdesc->shash, data1, data1_len);
 	if (rc) {
-		pr_err("%s: Could not update1", __func__);
+		pr_err("%s: Could not update1\n", __func__);
 		goto do_shash_err;
 	}
 	if (data2 && data2_len) {
 		rc = crypto_shash_update(&sdesc->shash, data2, data2_len);
 		if (rc) {
-			pr_err("%s: Could not update2", __func__);
+			pr_err("%s: Could not update2\n", __func__);
 			goto do_shash_err;
 		}
 	}
 	rc = crypto_shash_final(&sdesc->shash, result);
 	if (rc)
-		pr_err("%s: Could not generate %s hash", __func__, name);
+		pr_err("%s: Could not generate %s hash\n", __func__, name);
 
 do_shash_err:
 	crypto_free_shash(hash);
diff --git a/drivers/crypto/caam/Kconfig b/drivers/crypto/caam/Kconfig
index e36aeacd7635..1eb852765469 100644
--- a/drivers/crypto/caam/Kconfig
+++ b/drivers/crypto/caam/Kconfig
@@ -1,6 +1,7 @@
 config CRYPTO_DEV_FSL_CAAM
 	tristate "Freescale CAAM-Multicore driver backend"
 	depends on FSL_SOC || ARCH_MXC || ARCH_LAYERSCAPE
+	select SOC_BUS
 	help
 	  Enables the driver module for Freescale's Cryptographic Accelerator
 	  and Assurance Module (CAAM), also known as the SEC version 4 (SEC4).
@@ -141,10 +142,6 @@ config CRYPTO_DEV_FSL_CAAM_RNG_API
 	  To compile this as a module, choose M here: the module
 	  will be called caamrng.
 
-config CRYPTO_DEV_FSL_CAAM_IMX
-	def_bool SOC_IMX6 || SOC_IMX7D
-	depends on CRYPTO_DEV_FSL_CAAM
-
 config CRYPTO_DEV_FSL_CAAM_DEBUG
 	bool "Enable debug output in CAAM driver"
 	depends on CRYPTO_DEV_FSL_CAAM
diff --git a/drivers/crypto/caam/Makefile b/drivers/crypto/caam/Makefile
index 9e2e98856b9b..cb652ee7dfc8 100644
--- a/drivers/crypto/caam/Makefile
+++ b/drivers/crypto/caam/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the CAAM backend and dependent components
 #
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 54f3b375a453..baa8dd52472d 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -992,7 +992,7 @@ static void init_gcm_job(struct aead_request *req,
 	struct caam_ctx *ctx = crypto_aead_ctx(aead);
 	unsigned int ivsize = crypto_aead_ivsize(aead);
 	u32 *desc = edesc->hw_desc;
-	bool generic_gcm = (ivsize == 12);
+	bool generic_gcm = (ivsize == GCM_AES_IV_SIZE);
 	unsigned int last;
 
 	init_aead_job(req, edesc, all_contig, encrypt);
@@ -1004,7 +1004,7 @@ static void init_gcm_job(struct aead_request *req,
 
 	/* Read GCM IV */
 	append_cmd(desc, CMD_FIFO_LOAD | FIFOLD_CLASS_CLASS1 | IMMEDIATE |
-			 FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1 | 12 | last);
+			 FIFOLD_TYPE_IV | FIFOLD_TYPE_FLUSH1 | GCM_AES_IV_SIZE | last);
 	/* Append Salt */
 	if (!generic_gcm)
 		append_data(desc, ctx->key + ctx->cdata.keylen, 4);
@@ -1953,7 +1953,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setauthsize = rfc4106_setauthsize,
 			.encrypt = ipsec_gcm_encrypt,
 			.decrypt = ipsec_gcm_decrypt,
-			.ivsize = 8,
+			.ivsize = GCM_RFC4106_IV_SIZE,
 			.maxauthsize = AES_BLOCK_SIZE,
 		},
 		.caam = {
@@ -1971,7 +1971,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setauthsize = rfc4543_setauthsize,
 			.encrypt = ipsec_gcm_encrypt,
 			.decrypt = ipsec_gcm_decrypt,
-			.ivsize = 8,
+			.ivsize = GCM_RFC4543_IV_SIZE,
 			.maxauthsize = AES_BLOCK_SIZE,
 		},
 		.caam = {
@@ -1990,7 +1990,7 @@ static struct caam_aead_alg driver_aeads[] = {
 			.setauthsize = gcm_setauthsize,
 			.encrypt = gcm_encrypt,
 			.decrypt = gcm_decrypt,
-			.ivsize = 12,
+			.ivsize = GCM_AES_IV_SIZE,
 			.maxauthsize = AES_BLOCK_SIZE,
 		},
 		.caam = {
diff --git a/drivers/crypto/caam/caamalg_desc.h b/drivers/crypto/caam/caamalg_desc.h
index 8731e4a7ff05..e412ec8f7005 100644
--- a/drivers/crypto/caam/caamalg_desc.h
+++ b/drivers/crypto/caam/caamalg_desc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared descriptors for aead, ablkcipher algorithms
  *
diff --git a/drivers/crypto/caam/caamalg_qi.c b/drivers/crypto/caam/caamalg_qi.c
index 2eefc4a26bc2..f9f08fce4356 100644
--- a/drivers/crypto/caam/caamalg_qi.c
+++ b/drivers/crypto/caam/caamalg_qi.c
@@ -7,7 +7,7 @@
  */
 
 #include "compat.h"
-
+#include "ctrl.h"
 #include "regs.h"
 #include "intern.h"
 #include "desc_constr.h"
@@ -2312,6 +2312,11 @@ static int __init caam_qi_algapi_init(void)
 	if (!priv || !priv->qi_present)
 		return -ENODEV;
 
+	if (caam_dpaa2) {
+		dev_info(ctrldev, "caam/qi frontend driver not suitable for DPAA 2.x, aborting...\n");
+		return -ENODEV;
+	}
+
 	INIT_LIST_HEAD(&alg_list);
 
 	/*
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 698580b60b2f..616720a04e7a 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -218,7 +218,7 @@ static inline int buf_map_to_sec4_sg(struct device *jrdev,
 }
 
 /* Map state->caam_ctx, and add it to link table */
-static inline int ctx_map_to_sec4_sg(u32 *desc, struct device *jrdev,
+static inline int ctx_map_to_sec4_sg(struct device *jrdev,
 				     struct caam_hash_state *state, int ctx_len,
 				     struct sec4_sg_entry *sec4_sg, u32 flag)
 {
@@ -773,7 +773,7 @@ static int ahash_update_ctx(struct ahash_request *req)
 		edesc->src_nents = src_nents;
 		edesc->sec4_sg_bytes = sec4_sg_bytes;
 
-		ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
+		ret = ctx_map_to_sec4_sg(jrdev, state, ctx->ctx_len,
 					 edesc->sec4_sg, DMA_BIDIRECTIONAL);
 		if (ret)
 			goto unmap_ctx;
@@ -871,9 +871,8 @@ static int ahash_final_ctx(struct ahash_request *req)
 	desc = edesc->hw_desc;
 
 	edesc->sec4_sg_bytes = sec4_sg_bytes;
-	edesc->src_nents = 0;
 
-	ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
+	ret = ctx_map_to_sec4_sg(jrdev, state, ctx->ctx_len,
 				 edesc->sec4_sg, DMA_TO_DEVICE);
 	if (ret)
 		goto unmap_ctx;
@@ -967,7 +966,7 @@ static int ahash_finup_ctx(struct ahash_request *req)
 
 	edesc->src_nents = src_nents;
 
-	ret = ctx_map_to_sec4_sg(desc, jrdev, state, ctx->ctx_len,
+	ret = ctx_map_to_sec4_sg(jrdev, state, ctx->ctx_len,
 				 edesc->sec4_sg, DMA_TO_DEVICE);
 	if (ret)
 		goto unmap_ctx;
@@ -1123,7 +1122,6 @@ static int ahash_final_no_ctx(struct ahash_request *req)
 		dev_err(jrdev, "unable to map dst\n");
 		goto unmap;
 	}
-	edesc->src_nents = 0;
 
 #ifdef DEBUG
 	print_hex_dump(KERN_ERR, "jobdesc@"__stringify(__LINE__)": ",
@@ -1205,7 +1203,6 @@ static int ahash_update_no_ctx(struct ahash_request *req)
 
 		edesc->src_nents = src_nents;
 		edesc->sec4_sg_bytes = sec4_sg_bytes;
-		edesc->dst_dma = 0;
 
 		ret = buf_map_to_sec4_sg(jrdev, edesc->sec4_sg, state);
 		if (ret)
@@ -1417,7 +1414,6 @@ static int ahash_update_first(struct ahash_request *req)
 		}
 
 		edesc->src_nents = src_nents;
-		edesc->dst_dma = 0;
 
 		ret = ahash_edesc_add_src(ctx, edesc, req, mapped_nents, 0, 0,
 					  to_hash);
diff --git a/drivers/crypto/caam/caampkc.h b/drivers/crypto/caam/caampkc.h
index 87ab75e9df43..fd145c46eae1 100644
--- a/drivers/crypto/caam/caampkc.h
+++ b/drivers/crypto/caam/caampkc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * caam - Freescale FSL CAAM support for Public Key Cryptography descriptors
  *
diff --git a/drivers/crypto/caam/compat.h b/drivers/crypto/caam/compat.h
index 7149cd2492e0..1c71e0cd5098 100644
--- a/drivers/crypto/caam/compat.h
+++ b/drivers/crypto/caam/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2008-2011 Freescale Semiconductor, Inc.
  */
@@ -31,6 +32,7 @@
 #include <crypto/aes.h>
 #include <crypto/ctr.h>
 #include <crypto/des.h>
+#include <crypto/gcm.h>
 #include <crypto/sha.h>
 #include <crypto/md5.h>
 #include <crypto/internal/aead.h>
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index dacb53fb690e..027e121c6f70 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -7,6 +7,7 @@
 #include <linux/device.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/sys_soc.h>
 
 #include "compat.h"
 #include "regs.h"
@@ -19,6 +20,8 @@ bool caam_little_end;
 EXPORT_SYMBOL(caam_little_end);
 bool caam_dpaa2;
 EXPORT_SYMBOL(caam_dpaa2);
+bool caam_imx;
+EXPORT_SYMBOL(caam_imx);
 
 #ifdef CONFIG_CAAM_QI
 #include "qi.h"
@@ -28,19 +31,11 @@ EXPORT_SYMBOL(caam_dpaa2);
  * i.MX targets tend to have clock control subsystems that can
  * enable/disable clocking to our device.
  */
-#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_IMX
 static inline struct clk *caam_drv_identify_clk(struct device *dev,
 						char *clk_name)
 {
-	return devm_clk_get(dev, clk_name);
+	return caam_imx ? devm_clk_get(dev, clk_name) : NULL;
 }
-#else
-static inline struct clk *caam_drv_identify_clk(struct device *dev,
-						char *clk_name)
-{
-	return NULL;
-}
-#endif
 
 /*
  * Descriptor to instantiate RNG State Handle 0 in normal mode and
@@ -430,6 +425,10 @@ static int caam_probe(struct platform_device *pdev)
 {
 	int ret, ring, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
 	u64 caam_id;
+	static const struct soc_device_attribute imx_soc[] = {
+		{.family = "Freescale i.MX"},
+		{},
+	};
 	struct device *dev;
 	struct device_node *nprop, *np;
 	struct caam_ctrl __iomem *ctrl;
@@ -451,6 +450,8 @@ static int caam_probe(struct platform_device *pdev)
 	dev_set_drvdata(dev, ctrlpriv);
 	nprop = pdev->dev.of_node;
 
+	caam_imx = (bool)soc_device_match(imx_soc);
+
 	/* Enable clocking */
 	clk = caam_drv_identify_clk(&pdev->dev, "ipg");
 	if (IS_ERR(clk)) {
diff --git a/drivers/crypto/caam/ctrl.h b/drivers/crypto/caam/ctrl.h
index 7e7bf68c9ef5..be693a2cc25e 100644
--- a/drivers/crypto/caam/ctrl.h
+++ b/drivers/crypto/caam/ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM control-plane driver backend public-level include definitions
  *
diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h
index 2e6766a1573f..8142de7ba050 100644
--- a/drivers/crypto/caam/desc.h
+++ b/drivers/crypto/caam/desc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM descriptor composition header
  * Definitions to support CAAM descriptor instruction generation
@@ -1439,7 +1440,7 @@
 #define MATH_SRC1_REG2		(0x02 << MATH_SRC1_SHIFT)
 #define MATH_SRC1_REG3		(0x03 << MATH_SRC1_SHIFT)
 #define MATH_SRC1_IMM		(0x04 << MATH_SRC1_SHIFT)
-#define MATH_SRC1_DPOVRD	(0x07 << MATH_SRC0_SHIFT)
+#define MATH_SRC1_DPOVRD	(0x07 << MATH_SRC1_SHIFT)
 #define MATH_SRC1_INFIFO	(0x0a << MATH_SRC1_SHIFT)
 #define MATH_SRC1_OUTFIFO	(0x0b << MATH_SRC1_SHIFT)
 #define MATH_SRC1_ONE		(0x0c << MATH_SRC1_SHIFT)
diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h
index d8e83ca104e0..ba1ca0806f0a 100644
--- a/drivers/crypto/caam/desc_constr.h
+++ b/drivers/crypto/caam/desc_constr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * caam descriptor construction helper functions
  *
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index 3d639f3b45aa..8da88beb1abb 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * CAAM Error Reporting
  *
diff --git a/drivers/crypto/caam/error.h b/drivers/crypto/caam/error.h
index 250e1a21c473..5aa332bac4b0 100644
--- a/drivers/crypto/caam/error.h
+++ b/drivers/crypto/caam/error.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM Error Reporting code header
  *
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index a52361258d3a..91f1107276e5 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM/SEC 4.x driver backend
  * Private/internal definitions between modules
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index d258953ff488..f4f258075b89 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -172,7 +172,7 @@ static void caam_jr_dequeue(unsigned long devarg)
 
 	while (rd_reg32(&jrp->rregs->outring_used)) {
 
-		head = ACCESS_ONCE(jrp->head);
+		head = READ_ONCE(jrp->head);
 
 		spin_lock(&jrp->outlock);
 
@@ -341,7 +341,7 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
 	spin_lock_bh(&jrp->inplock);
 
 	head = jrp->head;
-	tail = ACCESS_ONCE(jrp->tail);
+	tail = READ_ONCE(jrp->tail);
 
 	if (!rd_reg32(&jrp->rregs->inpring_avail) ||
 	    CIRC_SPACE(head, tail, JOBR_DEPTH) <= 0) {
diff --git a/drivers/crypto/caam/jr.h b/drivers/crypto/caam/jr.h
index 97113a6d6c58..eab611530f36 100644
--- a/drivers/crypto/caam/jr.h
+++ b/drivers/crypto/caam/jr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM public-level include definitions for the JobR backend
  *
diff --git a/drivers/crypto/caam/key_gen.c b/drivers/crypto/caam/key_gen.c
index c425d4adaf2a..8c79c3a153dc 100644
--- a/drivers/crypto/caam/key_gen.c
+++ b/drivers/crypto/caam/key_gen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * CAAM/SEC 4.x functions for handling key-generation jobs
  *
diff --git a/drivers/crypto/caam/key_gen.h b/drivers/crypto/caam/key_gen.h
index 4628f389eb64..5db055c25bd2 100644
--- a/drivers/crypto/caam/key_gen.h
+++ b/drivers/crypto/caam/key_gen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM/SEC 4.x definitions for handling key-generation jobs
  *
diff --git a/drivers/crypto/caam/pdb.h b/drivers/crypto/caam/pdb.h
index 31e59963f4d2..810f0bef0652 100644
--- a/drivers/crypto/caam/pdb.h
+++ b/drivers/crypto/caam/pdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM Protocol Data Block (PDB) definition header file
  *
diff --git a/drivers/crypto/caam/pkc_desc.c b/drivers/crypto/caam/pkc_desc.c
index 9e2ce6fe2e43..2a8d87ea94bf 100644
--- a/drivers/crypto/caam/pkc_desc.c
+++ b/drivers/crypto/caam/pkc_desc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * caam - Freescale FSL CAAM support for Public Key Cryptography descriptors
  *
diff --git a/drivers/crypto/caam/qi.c b/drivers/crypto/caam/qi.c
index e4cf00014233..f9a44f485aac 100644
--- a/drivers/crypto/caam/qi.c
+++ b/drivers/crypto/caam/qi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * CAAM/SEC 4.x QI transport/backend driver
  * Queue Interface backend functionality
diff --git a/drivers/crypto/caam/qi.h b/drivers/crypto/caam/qi.h
index ecb21f207637..357b69f57072 100644
--- a/drivers/crypto/caam/qi.h
+++ b/drivers/crypto/caam/qi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Public definitions for the CAAM/QI (Queue Interface) backend.
  *
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 2b5efff9ec3c..fee363865d88 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM hardware register-level view
  *
@@ -67,6 +68,7 @@
  */
 
 extern bool caam_little_end;
+extern bool caam_imx;
 
 #define caam_to_cpu(len)				\
 static inline u##len caam##len ## _to_cpu(u##len val)	\
@@ -154,13 +156,10 @@ static inline u64 rd_reg64(void __iomem *reg)
 #else /* CONFIG_64BIT */
 static inline void wr_reg64(void __iomem *reg, u64 data)
 {
-#ifndef CONFIG_CRYPTO_DEV_FSL_CAAM_IMX
-	if (caam_little_end) {
+	if (!caam_imx && caam_little_end) {
 		wr_reg32((u32 __iomem *)(reg) + 1, data >> 32);
 		wr_reg32((u32 __iomem *)(reg), data);
-	} else
-#endif
-	{
+	} else {
 		wr_reg32((u32 __iomem *)(reg), data >> 32);
 		wr_reg32((u32 __iomem *)(reg) + 1, data);
 	}
@@ -168,41 +167,40 @@ static inline void wr_reg64(void __iomem *reg, u64 data)
 
 static inline u64 rd_reg64(void __iomem *reg)
 {
-#ifndef CONFIG_CRYPTO_DEV_FSL_CAAM_IMX
-	if (caam_little_end)
+	if (!caam_imx && caam_little_end)
 		return ((u64)rd_reg32((u32 __iomem *)(reg) + 1) << 32 |
 			(u64)rd_reg32((u32 __iomem *)(reg)));
-	else
-#endif
-		return ((u64)rd_reg32((u32 __iomem *)(reg)) << 32 |
-			(u64)rd_reg32((u32 __iomem *)(reg) + 1));
+
+	return ((u64)rd_reg32((u32 __iomem *)(reg)) << 32 |
+		(u64)rd_reg32((u32 __iomem *)(reg) + 1));
 }
 #endif /* CONFIG_64BIT  */
 
+static inline u64 cpu_to_caam_dma64(dma_addr_t value)
+{
+	if (caam_imx)
+		return (((u64)cpu_to_caam32(lower_32_bits(value)) << 32) |
+			 (u64)cpu_to_caam32(upper_32_bits(value)));
+
+	return cpu_to_caam64(value);
+}
+
+static inline u64 caam_dma64_to_cpu(u64 value)
+{
+	if (caam_imx)
+		return (((u64)caam32_to_cpu(lower_32_bits(value)) << 32) |
+			 (u64)caam32_to_cpu(upper_32_bits(value)));
+
+	return caam64_to_cpu(value);
+}
+
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
-#ifdef CONFIG_SOC_IMX7D
-#define cpu_to_caam_dma(value) \
-		(((u64)cpu_to_caam32(lower_32_bits(value)) << 32) | \
-		  (u64)cpu_to_caam32(upper_32_bits(value)))
-#define caam_dma_to_cpu(value) \
-		(((u64)caam32_to_cpu(lower_32_bits(value)) << 32) | \
-		  (u64)caam32_to_cpu(upper_32_bits(value)))
-#else
-#define cpu_to_caam_dma(value) cpu_to_caam64(value)
-#define caam_dma_to_cpu(value) caam64_to_cpu(value)
-#endif /* CONFIG_SOC_IMX7D */
+#define cpu_to_caam_dma(value) cpu_to_caam_dma64(value)
+#define caam_dma_to_cpu(value) caam_dma64_to_cpu(value)
 #else
 #define cpu_to_caam_dma(value) cpu_to_caam32(value)
 #define caam_dma_to_cpu(value) caam32_to_cpu(value)
-#endif /* CONFIG_ARCH_DMA_ADDR_T_64BIT  */
-
-#ifdef CONFIG_CRYPTO_DEV_FSL_CAAM_IMX
-#define cpu_to_caam_dma64(value) \
-		(((u64)cpu_to_caam32(lower_32_bits(value)) << 32) | \
-		 (u64)cpu_to_caam32(upper_32_bits(value)))
-#else
-#define cpu_to_caam_dma64(value) cpu_to_caam64(value)
-#endif
+#endif /* CONFIG_ARCH_DMA_ADDR_T_64BIT */
 
 /*
  * jr_outentry
diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h
index 936b1b630058..e586ffab8358 100644
--- a/drivers/crypto/caam/sg_sw_sec4.h
+++ b/drivers/crypto/caam/sg_sw_sec4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * CAAM/SEC 4.x functions for using scatterlists in caam driver
  *
diff --git a/drivers/crypto/cavium/nitrox/Makefile b/drivers/crypto/cavium/nitrox/Makefile
index 5af2e4368267..45b7379e8e30 100644
--- a/drivers/crypto/cavium/nitrox/Makefile
+++ b/drivers/crypto/cavium/nitrox/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_NITROX_CNN55XX) += n5pf.o
 
 n5pf-objs := nitrox_main.o \
diff --git a/drivers/crypto/cavium/nitrox/nitrox_algs.c b/drivers/crypto/cavium/nitrox/nitrox_algs.c
index ce330278ef8a..2ae6124e5da6 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_algs.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_algs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/crypto.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/crypto/cavium/nitrox/nitrox_common.h b/drivers/crypto/cavium/nitrox/nitrox_common.h
index 4888c7823a5f..312f72801af6 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_common.h
+++ b/drivers/crypto/cavium/nitrox/nitrox_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NITROX_COMMON_H
 #define __NITROX_COMMON_H
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_csr.h b/drivers/crypto/cavium/nitrox/nitrox_csr.h
index 30b04c4c6076..9dcb7fdbe0a7 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_csr.h
+++ b/drivers/crypto/cavium/nitrox/nitrox_csr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NITROX_CSR_H
 #define __NITROX_CSR_H
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_dev.h b/drivers/crypto/cavium/nitrox/nitrox_dev.h
index 57858b04f165..9a476bb6d4c7 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_dev.h
+++ b/drivers/crypto/cavium/nitrox/nitrox_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NITROX_DEV_H
 #define __NITROX_DEV_H
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_hal.c b/drivers/crypto/cavium/nitrox/nitrox_hal.c
index f0655f82fa7d..ab4ccf2f9e77 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_hal.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_hal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/delay.h>
 
 #include "nitrox_dev.h"
@@ -126,7 +127,7 @@ void nitrox_config_pkt_input_rings(struct nitrox_device *ndev)
 		 * size and interrupt threshold.
 		 */
 		offset = NPS_PKT_IN_INSTR_BADDRX(i);
-		nitrox_write_csr(ndev, NPS_PKT_IN_INSTR_BADDRX(i), cmdq->dma);
+		nitrox_write_csr(ndev, offset, cmdq->dma);
 
 		/* configure ring size */
 		offset = NPS_PKT_IN_INSTR_RSIZEX(i);
diff --git a/drivers/crypto/cavium/nitrox/nitrox_isr.c b/drivers/crypto/cavium/nitrox/nitrox_isr.c
index 71f934871a89..dbead5f45df3 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_isr.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_isr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci.h>
 #include <linux/printk.h>
 #include <linux/slab.h>
diff --git a/drivers/crypto/cavium/nitrox/nitrox_lib.c b/drivers/crypto/cavium/nitrox/nitrox_lib.c
index b4a391adb9b6..4fdc921ba611 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_lib.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cpumask.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmapool.h>
diff --git a/drivers/crypto/cavium/nitrox/nitrox_req.h b/drivers/crypto/cavium/nitrox/nitrox_req.h
index 74f4c20dc87d..d091b6f5f5dd 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_req.h
+++ b/drivers/crypto/cavium/nitrox/nitrox_req.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NITROX_REQ_H
 #define __NITROX_REQ_H
 
diff --git a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
index 4bb4377c5ac0..4addc238a6ef 100644
--- a/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
+++ b/drivers/crypto/cavium/nitrox/nitrox_reqmgr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/gfp.h>
 #include <linux/workqueue.h>
 #include <crypto/internal/skcipher.h>
diff --git a/drivers/crypto/cavium/zip/Makefile b/drivers/crypto/cavium/zip/Makefile
index b2f3baaff757..020d189d793d 100644
--- a/drivers/crypto/cavium/zip/Makefile
+++ b/drivers/crypto/cavium/zip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Cavium's ZIP Driver.
 #
diff --git a/drivers/crypto/ccp/Makefile b/drivers/crypto/ccp/Makefile
index 57f8debfcfb3..c4ce726b931e 100644
--- a/drivers/crypto/ccp/Makefile
+++ b/drivers/crypto/ccp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_CCP_DD) += ccp.o
 ccp-objs  := sp-dev.o sp-platform.o
 ccp-$(CONFIG_CRYPTO_DEV_SP_CCP) += ccp-dev.o \
diff --git a/drivers/crypto/ccp/ccp-crypto-aes-galois.c b/drivers/crypto/ccp/ccp-crypto-aes-galois.c
index 52313524a4dd..ff02b713c6f6 100644
--- a/drivers/crypto/ccp/ccp-crypto-aes-galois.c
+++ b/drivers/crypto/ccp/ccp-crypto-aes-galois.c
@@ -19,13 +19,12 @@
 #include <crypto/algapi.h>
 #include <crypto/aes.h>
 #include <crypto/ctr.h>
+#include <crypto/gcm.h>
 #include <crypto/scatterwalk.h>
 #include <linux/delay.h>
 
 #include "ccp-crypto.h"
 
-#define	AES_GCM_IVSIZE	12
-
 static int ccp_aes_gcm_complete(struct crypto_async_request *async_req, int ret)
 {
 	return ret;
@@ -95,9 +94,9 @@ static int ccp_aes_gcm_crypt(struct aead_request *req, bool encrypt)
 	 */
 
 	/* Prepare the IV: 12 bytes + an integer (counter) */
-	memcpy(rctx->iv, req->iv, AES_GCM_IVSIZE);
+	memcpy(rctx->iv, req->iv, GCM_AES_IV_SIZE);
 	for (i = 0; i < 3; i++)
-		rctx->iv[i + AES_GCM_IVSIZE] = 0;
+		rctx->iv[i + GCM_AES_IV_SIZE] = 0;
 	rctx->iv[AES_BLOCK_SIZE - 1] = 1;
 
 	/* Set up a scatterlist for the IV */
@@ -160,7 +159,7 @@ static struct aead_alg ccp_aes_gcm_defaults = {
 	.encrypt = ccp_aes_gcm_encrypt,
 	.decrypt = ccp_aes_gcm_decrypt,
 	.init = ccp_aes_gcm_cra_init,
-	.ivsize = AES_GCM_IVSIZE,
+	.ivsize = GCM_AES_IV_SIZE,
 	.maxauthsize = AES_BLOCK_SIZE,
 	.base = {
 		.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
diff --git a/drivers/crypto/ccp/ccp-crypto-main.c b/drivers/crypto/ccp/ccp-crypto-main.c
index 35a9de7fd475..b95d19974aa6 100644
--- a/drivers/crypto/ccp/ccp-crypto-main.c
+++ b/drivers/crypto/ccp/ccp-crypto-main.c
@@ -222,9 +222,10 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd)
 
 	/* Check if the cmd can/should be queued */
 	if (req_queue.cmd_count >= CCP_CRYPTO_MAX_QLEN) {
-		ret = -EBUSY;
-		if (!(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG))
+		if (!(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG)) {
+			ret = -ENOSPC;
 			goto e_lock;
+		}
 	}
 
 	/* Look for an entry with the same tfm.  If there is a cmd
@@ -243,9 +244,6 @@ static int ccp_crypto_enqueue_cmd(struct ccp_crypto_cmd *crypto_cmd)
 		ret = ccp_enqueue_cmd(crypto_cmd->cmd);
 		if (!ccp_crypto_success(ret))
 			goto e_lock;	/* Error, don't queue it */
-		if ((ret == -EBUSY) &&
-		    !(crypto_cmd->cmd->flags & CCP_CMD_MAY_BACKLOG))
-			goto e_lock;	/* Not backlogging, don't queue it */
 	}
 
 	if (req_queue.cmd_count >= CCP_CRYPTO_MAX_QLEN) {
diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c
index 65604fc65e8f..44a4d2779b15 100644
--- a/drivers/crypto/ccp/ccp-dev-v5.c
+++ b/drivers/crypto/ccp/ccp-dev-v5.c
@@ -788,13 +788,12 @@ static int ccp5_init(struct ccp_device *ccp)
 	struct ccp_cmd_queue *cmd_q;
 	struct dma_pool *dma_pool;
 	char dma_pool_name[MAX_DMAPOOL_NAME_LEN];
-	unsigned int qmr, qim, i;
+	unsigned int qmr, i;
 	u64 status;
 	u32 status_lo, status_hi;
 	int ret;
 
 	/* Find available queues */
-	qim = 0;
 	qmr = ioread32(ccp->io_regs + Q_MASK_REG);
 	for (i = 0; i < MAX_HW_QUEUES; i++) {
 
diff --git a/drivers/crypto/ccp/ccp-dev.c b/drivers/crypto/ccp/ccp-dev.c
index 4e029b176641..1b5035d56288 100644
--- a/drivers/crypto/ccp/ccp-dev.c
+++ b/drivers/crypto/ccp/ccp-dev.c
@@ -292,9 +292,12 @@ int ccp_enqueue_cmd(struct ccp_cmd *cmd)
 	i = ccp->cmd_q_count;
 
 	if (ccp->cmd_count >= MAX_CMD_QLEN) {
-		ret = -EBUSY;
-		if (cmd->flags & CCP_CMD_MAY_BACKLOG)
+		if (cmd->flags & CCP_CMD_MAY_BACKLOG) {
+			ret = -EBUSY;
 			list_add_tail(&cmd->entry, &ccp->backlog);
+		} else {
+			ret = -ENOSPC;
+		}
 	} else {
 		ret = -EINPROGRESS;
 		ccp->cmd_count++;
diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c
index d608043c0280..8b9da58459df 100644
--- a/drivers/crypto/ccp/ccp-dmaengine.c
+++ b/drivers/crypto/ccp/ccp-dmaengine.c
@@ -223,6 +223,7 @@ static struct ccp_dma_desc *ccp_handle_active_desc(struct ccp_dma_chan *chan,
 				desc->tx_desc.cookie, desc->status);
 
 			dma_cookie_complete(tx_desc);
+			dma_descriptor_unmap(tx_desc);
 		}
 
 		desc = __ccp_next_dma_desc(chan, desc);
@@ -230,9 +231,7 @@ static struct ccp_dma_desc *ccp_handle_active_desc(struct ccp_dma_chan *chan,
 		spin_unlock_irqrestore(&chan->lock, flags);
 
 		if (tx_desc) {
-			if (tx_desc->callback &&
-			    (tx_desc->flags & DMA_PREP_INTERRUPT))
-				tx_desc->callback(tx_desc->callback_param);
+			dmaengine_desc_get_callback_invoke(tx_desc, NULL);
 
 			dma_run_dependencies(tx_desc);
 		}
diff --git a/drivers/crypto/chelsio/chcr_algo.c b/drivers/crypto/chelsio/chcr_algo.c
index 0e8160701833..4eed7171e2ae 100644
--- a/drivers/crypto/chelsio/chcr_algo.c
+++ b/drivers/crypto/chelsio/chcr_algo.c
@@ -53,6 +53,7 @@
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
 #include <crypto/hash.h>
+#include <crypto/gcm.h>
 #include <crypto/sha.h>
 #include <crypto/authenc.h>
 #include <crypto/ctr.h>
@@ -70,6 +71,8 @@
 #include "chcr_algo.h"
 #include "chcr_crypto.h"
 
+#define IV AES_BLOCK_SIZE
+
 static inline  struct chcr_aead_ctx *AEAD_CTX(struct chcr_context *ctx)
 {
 	return ctx->crypto_ctx->aeadctx;
@@ -102,7 +105,7 @@ static inline struct uld_ctx *ULD_CTX(struct chcr_context *ctx)
 
 static inline int is_ofld_imm(const struct sk_buff *skb)
 {
-	return (skb->len <= CRYPTO_MAX_IMM_TX_PKT_LEN);
+	return (skb->len <= SGE_MAX_WR_LEN);
 }
 
 /*
@@ -117,6 +120,92 @@ static inline unsigned int sgl_len(unsigned int n)
 	return (3 * n) / 2 + (n & 1) + 2;
 }
 
+static int sg_nents_xlen(struct scatterlist *sg, unsigned int reqlen,
+			 unsigned int entlen,
+			 unsigned int skip)
+{
+	int nents = 0;
+	unsigned int less;
+	unsigned int skip_len = 0;
+
+	while (sg && skip) {
+		if (sg_dma_len(sg) <= skip) {
+			skip -= sg_dma_len(sg);
+			skip_len = 0;
+			sg = sg_next(sg);
+		} else {
+			skip_len = skip;
+			skip = 0;
+		}
+	}
+
+	while (sg && reqlen) {
+		less = min(reqlen, sg_dma_len(sg) - skip_len);
+		nents += DIV_ROUND_UP(less, entlen);
+		reqlen -= less;
+		skip_len = 0;
+		sg = sg_next(sg);
+	}
+	return nents;
+}
+
+static inline void chcr_handle_ahash_resp(struct ahash_request *req,
+					  unsigned char *input,
+					  int err)
+{
+	struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
+	int digestsize, updated_digestsize;
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm));
+
+	if (input == NULL)
+		goto out;
+	reqctx = ahash_request_ctx(req);
+	digestsize = crypto_ahash_digestsize(crypto_ahash_reqtfm(req));
+	if (reqctx->is_sg_map)
+		chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+	if (reqctx->dma_addr)
+		dma_unmap_single(&u_ctx->lldi.pdev->dev, reqctx->dma_addr,
+				 reqctx->dma_len, DMA_TO_DEVICE);
+	reqctx->dma_addr = 0;
+	updated_digestsize = digestsize;
+	if (digestsize == SHA224_DIGEST_SIZE)
+		updated_digestsize = SHA256_DIGEST_SIZE;
+	else if (digestsize == SHA384_DIGEST_SIZE)
+		updated_digestsize = SHA512_DIGEST_SIZE;
+	if (reqctx->result == 1) {
+		reqctx->result = 0;
+		memcpy(req->result, input + sizeof(struct cpl_fw6_pld),
+		       digestsize);
+	} else {
+		memcpy(reqctx->partial_hash, input + sizeof(struct cpl_fw6_pld),
+		       updated_digestsize);
+	}
+out:
+	req->base.complete(&req->base, err);
+
+	}
+
+static inline void chcr_handle_aead_resp(struct aead_request *req,
+					 unsigned char *input,
+					 int err)
+{
+	struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct uld_ctx *u_ctx = ULD_CTX(a_ctx(tfm));
+
+
+	chcr_aead_dma_unmap(&u_ctx->lldi.pdev->dev, req, reqctx->op);
+	if (reqctx->b0_dma)
+		dma_unmap_single(&u_ctx->lldi.pdev->dev, reqctx->b0_dma,
+				 reqctx->b0_len, DMA_BIDIRECTIONAL);
+	if (reqctx->verify == VERIFY_SW) {
+		chcr_verify_tag(req, input, &err);
+		reqctx->verify = VERIFY_HW;
+}
+	req->base.complete(&req->base, err);
+
+}
 static void chcr_verify_tag(struct aead_request *req, u8 *input, int *err)
 {
 	u8 temp[SHA512_DIGEST_SIZE];
@@ -151,29 +240,11 @@ int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input,
 {
 	struct crypto_tfm *tfm = req->tfm;
 	struct chcr_context *ctx = crypto_tfm_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	struct chcr_req_ctx ctx_req;
-	unsigned int digestsize, updated_digestsize;
 	struct adapter *adap = padap(ctx->dev);
 
 	switch (tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
 	case CRYPTO_ALG_TYPE_AEAD:
-		ctx_req.req.aead_req = aead_request_cast(req);
-		ctx_req.ctx.reqctx = aead_request_ctx(ctx_req.req.aead_req);
-		dma_unmap_sg(&u_ctx->lldi.pdev->dev, ctx_req.ctx.reqctx->dst,
-			     ctx_req.ctx.reqctx->dst_nents, DMA_FROM_DEVICE);
-		if (ctx_req.ctx.reqctx->skb) {
-			kfree_skb(ctx_req.ctx.reqctx->skb);
-			ctx_req.ctx.reqctx->skb = NULL;
-		}
-		free_new_sg(ctx_req.ctx.reqctx->newdstsg);
-		ctx_req.ctx.reqctx->newdstsg = NULL;
-		if (ctx_req.ctx.reqctx->verify == VERIFY_SW) {
-			chcr_verify_tag(ctx_req.req.aead_req, input,
-					&err);
-			ctx_req.ctx.reqctx->verify = VERIFY_HW;
-		}
-		ctx_req.req.aead_req->base.complete(req, err);
+		chcr_handle_aead_resp(aead_request_cast(req), input, err);
 		break;
 
 	case CRYPTO_ALG_TYPE_ABLKCIPHER:
@@ -182,60 +253,13 @@ int chcr_handle_resp(struct crypto_async_request *req, unsigned char *input,
 		break;
 
 	case CRYPTO_ALG_TYPE_AHASH:
-		ctx_req.req.ahash_req = ahash_request_cast(req);
-		ctx_req.ctx.ahash_ctx =
-			ahash_request_ctx(ctx_req.req.ahash_req);
-		digestsize =
-			crypto_ahash_digestsize(crypto_ahash_reqtfm(
-							ctx_req.req.ahash_req));
-		updated_digestsize = digestsize;
-		if (digestsize == SHA224_DIGEST_SIZE)
-			updated_digestsize = SHA256_DIGEST_SIZE;
-		else if (digestsize == SHA384_DIGEST_SIZE)
-			updated_digestsize = SHA512_DIGEST_SIZE;
-		if (ctx_req.ctx.ahash_ctx->skb) {
-			kfree_skb(ctx_req.ctx.ahash_ctx->skb);
-			ctx_req.ctx.ahash_ctx->skb = NULL;
-		}
-		if (ctx_req.ctx.ahash_ctx->result == 1) {
-			ctx_req.ctx.ahash_ctx->result = 0;
-			memcpy(ctx_req.req.ahash_req->result, input +
-			       sizeof(struct cpl_fw6_pld),
-			       digestsize);
-		} else {
-			memcpy(ctx_req.ctx.ahash_ctx->partial_hash, input +
-			       sizeof(struct cpl_fw6_pld),
-			       updated_digestsize);
+		chcr_handle_ahash_resp(ahash_request_cast(req), input, err);
 		}
-		ctx_req.req.ahash_req->base.complete(req, err);
-		break;
-	}
 	atomic_inc(&adap->chcr_stats.complete);
 	return err;
 }
 
-/*
- *	calc_tx_flits_ofld - calculate # of flits for an offload packet
- *	@skb: the packet
- *	Returns the number of flits needed for the given offload packet.
- *	These packets are already fully constructed and no additional headers
- *	will be added.
- */
-static inline unsigned int calc_tx_flits_ofld(const struct sk_buff *skb)
-{
-	unsigned int flits, cnt;
-
-	if (is_ofld_imm(skb))
-		return DIV_ROUND_UP(skb->len, 8);
-
-	flits = skb_transport_offset(skb) / 8;   /* headers */
-	cnt = skb_shinfo(skb)->nr_frags;
-	if (skb_tail_pointer(skb) != skb_transport_header(skb))
-		cnt++;
-	return flits + sgl_len(cnt);
-}
-
-static inline void get_aes_decrypt_key(unsigned char *dec_key,
+static void get_aes_decrypt_key(unsigned char *dec_key,
 				       const unsigned char *key,
 				       unsigned int keylength)
 {
@@ -382,13 +406,19 @@ static inline int is_hmac(struct crypto_tfm *tfm)
 	return 0;
 }
 
-static void write_phys_cpl(struct cpl_rx_phys_dsgl *phys_cpl,
-			   struct scatterlist *sg,
-			   struct phys_sge_parm *sg_param)
+static inline void dsgl_walk_init(struct dsgl_walk *walk,
+				   struct cpl_rx_phys_dsgl *dsgl)
 {
-	struct phys_sge_pairs *to;
-	unsigned int len = 0, left_size = sg_param->obsize;
-	unsigned int nents = sg_param->nents, i, j = 0;
+	walk->dsgl = dsgl;
+	walk->nents = 0;
+	walk->to = (struct phys_sge_pairs *)(dsgl + 1);
+}
+
+static inline void dsgl_walk_end(struct dsgl_walk *walk, unsigned short qid)
+{
+	struct cpl_rx_phys_dsgl *phys_cpl;
+
+	phys_cpl = walk->dsgl;
 
 	phys_cpl->op_to_tid = htonl(CPL_RX_PHYS_DSGL_OPCODE_V(CPL_RX_PHYS_DSGL)
 				    | CPL_RX_PHYS_DSGL_ISRDMA_V(0));
@@ -398,38 +428,171 @@ static void write_phys_cpl(struct cpl_rx_phys_dsgl *phys_cpl,
 		      CPL_RX_PHYS_DSGL_PCITPHNTENB_V(0) |
 		      CPL_RX_PHYS_DSGL_PCITPHNT_V(0) |
 		      CPL_RX_PHYS_DSGL_DCAID_V(0) |
-		      CPL_RX_PHYS_DSGL_NOOFSGENTR_V(nents));
+		      CPL_RX_PHYS_DSGL_NOOFSGENTR_V(walk->nents));
 	phys_cpl->rss_hdr_int.opcode = CPL_RX_PHYS_ADDR;
-	phys_cpl->rss_hdr_int.qid = htons(sg_param->qid);
+	phys_cpl->rss_hdr_int.qid = htons(qid);
 	phys_cpl->rss_hdr_int.hash_val = 0;
-	to = (struct phys_sge_pairs *)((unsigned char *)phys_cpl +
-				       sizeof(struct cpl_rx_phys_dsgl));
-	for (i = 0; nents && left_size; to++) {
-		for (j = 0; j < 8 && nents && left_size; j++, nents--) {
-			len = min(left_size, sg_dma_len(sg));
-			to->len[j] = htons(len);
-			to->addr[j] = cpu_to_be64(sg_dma_address(sg));
-			left_size -= len;
+}
+
+static inline void dsgl_walk_add_page(struct dsgl_walk *walk,
+					size_t size,
+					dma_addr_t *addr)
+{
+	int j;
+
+	if (!size)
+		return;
+	j = walk->nents;
+	walk->to->len[j % 8] = htons(size);
+	walk->to->addr[j % 8] = cpu_to_be64(*addr);
+	j++;
+	if ((j % 8) == 0)
+		walk->to++;
+	walk->nents = j;
+}
+
+static void  dsgl_walk_add_sg(struct dsgl_walk *walk,
+			   struct scatterlist *sg,
+			      unsigned int slen,
+			      unsigned int skip)
+{
+	int skip_len = 0;
+	unsigned int left_size = slen, len = 0;
+	unsigned int j = walk->nents;
+	int offset, ent_len;
+
+	if (!slen)
+		return;
+	while (sg && skip) {
+		if (sg_dma_len(sg) <= skip) {
+			skip -= sg_dma_len(sg);
+			skip_len = 0;
 			sg = sg_next(sg);
+		} else {
+			skip_len = skip;
+			skip = 0;
 		}
 	}
+
+	while (left_size && sg) {
+		len = min_t(u32, left_size, sg_dma_len(sg) - skip_len);
+		offset = 0;
+		while (len) {
+			ent_len =  min_t(u32, len, CHCR_DST_SG_SIZE);
+			walk->to->len[j % 8] = htons(ent_len);
+			walk->to->addr[j % 8] = cpu_to_be64(sg_dma_address(sg) +
+						      offset + skip_len);
+			offset += ent_len;
+			len -= ent_len;
+			j++;
+			if ((j % 8) == 0)
+				walk->to++;
+		}
+		walk->last_sg = sg;
+		walk->last_sg_len = min_t(u32, left_size, sg_dma_len(sg) -
+					  skip_len) + skip_len;
+		left_size -= min_t(u32, left_size, sg_dma_len(sg) - skip_len);
+		skip_len = 0;
+		sg = sg_next(sg);
+	}
+	walk->nents = j;
+}
+
+static inline void ulptx_walk_init(struct ulptx_walk *walk,
+				   struct ulptx_sgl *ulp)
+{
+	walk->sgl = ulp;
+	walk->nents = 0;
+	walk->pair_idx = 0;
+	walk->pair = ulp->sge;
+	walk->last_sg = NULL;
+	walk->last_sg_len = 0;
 }
 
-static inline int map_writesg_phys_cpl(struct device *dev,
-					struct cpl_rx_phys_dsgl *phys_cpl,
+static inline void ulptx_walk_end(struct ulptx_walk *walk)
+{
+	walk->sgl->cmd_nsge = htonl(ULPTX_CMD_V(ULP_TX_SC_DSGL) |
+			      ULPTX_NSGE_V(walk->nents));
+}
+
+
+static inline void ulptx_walk_add_page(struct ulptx_walk *walk,
+					size_t size,
+					dma_addr_t *addr)
+{
+	if (!size)
+		return;
+
+	if (walk->nents == 0) {
+		walk->sgl->len0 = cpu_to_be32(size);
+		walk->sgl->addr0 = cpu_to_be64(*addr);
+	} else {
+		walk->pair->addr[walk->pair_idx] = cpu_to_be64(*addr);
+		walk->pair->len[walk->pair_idx] = cpu_to_be32(size);
+		walk->pair_idx = !walk->pair_idx;
+		if (!walk->pair_idx)
+			walk->pair++;
+	}
+	walk->nents++;
+}
+
+static void  ulptx_walk_add_sg(struct ulptx_walk *walk,
 					struct scatterlist *sg,
-					struct phys_sge_parm *sg_param)
+			       unsigned int len,
+			       unsigned int skip)
 {
-	if (!sg || !sg_param->nents)
-		return -EINVAL;
+	int small;
+	int skip_len = 0;
+	unsigned int sgmin;
 
-	sg_param->nents = dma_map_sg(dev, sg, sg_param->nents, DMA_FROM_DEVICE);
-	if (sg_param->nents == 0) {
-		pr_err("CHCR : DMA mapping failed\n");
-		return -EINVAL;
+	if (!len)
+		return;
+
+	while (sg && skip) {
+		if (sg_dma_len(sg) <= skip) {
+			skip -= sg_dma_len(sg);
+			skip_len = 0;
+			sg = sg_next(sg);
+		} else {
+			skip_len = skip;
+			skip = 0;
+		}
+	}
+	if (walk->nents == 0) {
+		small = min_t(unsigned int, sg_dma_len(sg) - skip_len, len);
+		sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE);
+		walk->sgl->len0 = cpu_to_be32(sgmin);
+		walk->sgl->addr0 = cpu_to_be64(sg_dma_address(sg) + skip_len);
+		walk->nents++;
+		len -= sgmin;
+		walk->last_sg = sg;
+		walk->last_sg_len = sgmin + skip_len;
+		skip_len += sgmin;
+		if (sg_dma_len(sg) == skip_len) {
+			sg = sg_next(sg);
+			skip_len = 0;
+		}
+	}
+
+	while (sg && len) {
+		small = min(sg_dma_len(sg) - skip_len, len);
+		sgmin = min_t(unsigned int, small, CHCR_SRC_SG_SIZE);
+		walk->pair->len[walk->pair_idx] = cpu_to_be32(sgmin);
+		walk->pair->addr[walk->pair_idx] =
+			cpu_to_be64(sg_dma_address(sg) + skip_len);
+		walk->pair_idx = !walk->pair_idx;
+		walk->nents++;
+		if (!walk->pair_idx)
+			walk->pair++;
+		len -= sgmin;
+		skip_len += sgmin;
+		walk->last_sg = sg;
+		walk->last_sg_len = skip_len;
+		if (sg_dma_len(sg) == skip_len) {
+			sg = sg_next(sg);
+			skip_len = 0;
+		}
 	}
-	write_phys_cpl(phys_cpl, sg, sg_param);
-	return 0;
 }
 
 static inline int get_aead_subtype(struct crypto_aead *aead)
@@ -449,45 +612,6 @@ static inline int get_cryptoalg_subtype(struct crypto_tfm *tfm)
 	return chcr_crypto_alg->type & CRYPTO_ALG_SUB_TYPE_MASK;
 }
 
-static inline void write_buffer_to_skb(struct sk_buff *skb,
-					unsigned int *frags,
-					char *bfr,
-					u8 bfr_len)
-{
-	skb->len += bfr_len;
-	skb->data_len += bfr_len;
-	skb->truesize += bfr_len;
-	get_page(virt_to_page(bfr));
-	skb_fill_page_desc(skb, *frags, virt_to_page(bfr),
-			   offset_in_page(bfr), bfr_len);
-	(*frags)++;
-}
-
-
-static inline void
-write_sg_to_skb(struct sk_buff *skb, unsigned int *frags,
-			struct scatterlist *sg, unsigned int count)
-{
-	struct page *spage;
-	unsigned int page_len;
-
-	skb->len += count;
-	skb->data_len += count;
-	skb->truesize += count;
-
-	while (count > 0) {
-		if (!sg || (!(sg->length)))
-			break;
-		spage = sg_page(sg);
-		get_page(spage);
-		page_len = min(sg->length, count);
-		skb_fill_page_desc(skb, *frags, spage, sg->offset, page_len);
-		(*frags)++;
-		count -= page_len;
-		sg = sg_next(sg);
-	}
-}
-
 static int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx)
 {
 	struct adapter *adap = netdev2adap(dev);
@@ -524,30 +648,46 @@ static int chcr_sg_ent_in_wr(struct scatterlist *src,
 			     struct scatterlist *dst,
 			     unsigned int minsg,
 			     unsigned int space,
-			     short int *sent,
-			     short int *dent)
+			     unsigned int srcskip,
+			     unsigned int dstskip)
 {
 	int srclen = 0, dstlen = 0;
-	int srcsg = minsg, dstsg = 0;
+	int srcsg = minsg, dstsg = minsg;
+	int offset = 0, less;
+
+	if (sg_dma_len(src) == srcskip) {
+		src = sg_next(src);
+		srcskip = 0;
+	}
 
-	*sent = 0;
-	*dent = 0;
-	while (src && dst && ((srcsg + 1) <= MAX_SKB_FRAGS) &&
+	if (sg_dma_len(dst) == dstskip) {
+		dst = sg_next(dst);
+		dstskip = 0;
+	}
+
+	while (src && dst &&
 	       space > (sgl_ent_len[srcsg + 1] + dsgl_ent_len[dstsg])) {
-		srclen += src->length;
+		srclen += (sg_dma_len(src) - srcskip);
 		srcsg++;
+		offset = 0;
 		while (dst && ((dstsg + 1) <= MAX_DSGL_ENT) &&
 		       space > (sgl_ent_len[srcsg] + dsgl_ent_len[dstsg + 1])) {
 			if (srclen <= dstlen)
 				break;
-			dstlen += dst->length;
-			dst = sg_next(dst);
+			less = min_t(unsigned int, sg_dma_len(dst) - offset -
+				dstskip, CHCR_DST_SG_SIZE);
+			dstlen += less;
+			offset += less;
+			if (offset == sg_dma_len(dst)) {
+				dst = sg_next(dst);
+				offset = 0;
+			}
 			dstsg++;
+			dstskip = 0;
 		}
 		src = sg_next(src);
+		 srcskip = 0;
 	}
-	*sent = srcsg - minsg;
-	*dent = dstsg;
 	return min(srclen, dstlen);
 }
 
@@ -576,47 +716,35 @@ static int chcr_cipher_fallback(struct crypto_skcipher *cipher,
 }
 static inline void create_wreq(struct chcr_context *ctx,
 			       struct chcr_wr *chcr_req,
-			       void *req, struct sk_buff *skb,
-			       int kctx_len, int hash_sz,
-			       int is_iv,
+			       struct crypto_async_request *req,
+			       unsigned int imm,
+			       int hash_sz,
+			       unsigned int len16,
 			       unsigned int sc_len,
 			       unsigned int lcb)
 {
 	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	int iv_loc = IV_DSGL;
 	int qid = u_ctx->lldi.rxq_ids[ctx->rx_qidx];
-	unsigned int immdatalen = 0, nr_frags = 0;
 
-	if (is_ofld_imm(skb)) {
-		immdatalen = skb->data_len;
-		iv_loc = IV_IMMEDIATE;
-	} else {
-		nr_frags = skb_shinfo(skb)->nr_frags;
-	}
 
-	chcr_req->wreq.op_to_cctx_size = FILL_WR_OP_CCTX_SIZE(immdatalen,
-				((sizeof(chcr_req->key_ctx) + kctx_len) >> 4));
+	chcr_req->wreq.op_to_cctx_size = FILL_WR_OP_CCTX_SIZE;
 	chcr_req->wreq.pld_size_hash_size =
-		htonl(FW_CRYPTO_LOOKASIDE_WR_PLD_SIZE_V(sgl_lengths[nr_frags]) |
-		      FW_CRYPTO_LOOKASIDE_WR_HASH_SIZE_V(hash_sz));
+		htonl(FW_CRYPTO_LOOKASIDE_WR_HASH_SIZE_V(hash_sz));
 	chcr_req->wreq.len16_pkd =
-		htonl(FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP(
-				    (calc_tx_flits_ofld(skb) * 8), 16)));
+		htonl(FW_CRYPTO_LOOKASIDE_WR_LEN16_V(DIV_ROUND_UP(len16, 16)));
 	chcr_req->wreq.cookie = cpu_to_be64((uintptr_t)req);
 	chcr_req->wreq.rx_chid_to_rx_q_id =
 		FILL_WR_RX_Q_ID(ctx->dev->rx_channel_id, qid,
-				is_iv ? iv_loc : IV_NOP, !!lcb,
-				ctx->tx_qidx);
+				!!lcb, ctx->tx_qidx);
 
 	chcr_req->ulptx.cmd_dest = FILL_ULPTX_CMD_DEST(ctx->dev->tx_channel_id,
 						       qid);
-	chcr_req->ulptx.len = htonl((DIV_ROUND_UP((calc_tx_flits_ofld(skb) * 8),
-					16) - ((sizeof(chcr_req->wreq)) >> 4)));
+	chcr_req->ulptx.len = htonl((DIV_ROUND_UP(len16, 16) -
+				     ((sizeof(chcr_req->wreq)) >> 4)));
 
-	chcr_req->sc_imm.cmd_more = FILL_CMD_MORE(immdatalen);
+	chcr_req->sc_imm.cmd_more = FILL_CMD_MORE(!imm);
 	chcr_req->sc_imm.len = cpu_to_be32(sizeof(struct cpl_tx_sec_pdu) +
-				   sizeof(chcr_req->key_ctx) +
-				   kctx_len + sc_len + immdatalen);
+					   sizeof(chcr_req->key_ctx) + sc_len);
 }
 
 /**
@@ -629,47 +757,52 @@ static inline void create_wreq(struct chcr_context *ctx,
 static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
 {
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(wrparam->req);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct sk_buff *skb = NULL;
 	struct chcr_wr *chcr_req;
 	struct cpl_rx_phys_dsgl *phys_cpl;
+	struct ulptx_sgl *ulptx;
 	struct chcr_blkcipher_req_ctx *reqctx =
 		ablkcipher_request_ctx(wrparam->req);
-	struct phys_sge_parm sg_param;
-	unsigned int frags = 0, transhdr_len, phys_dsgl;
+	unsigned int temp = 0, transhdr_len, dst_size;
 	int error;
-	unsigned int ivsize = AES_BLOCK_SIZE, kctx_len;
+	int nents;
+	unsigned int kctx_len;
 	gfp_t flags = wrparam->req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
 			GFP_KERNEL : GFP_ATOMIC;
-	struct adapter *adap = padap(ctx->dev);
-
-	phys_dsgl = get_space_for_phys_dsgl(reqctx->dst_nents);
+	struct adapter *adap = padap(c_ctx(tfm)->dev);
 
+	nents = sg_nents_xlen(reqctx->dstsg,  wrparam->bytes, CHCR_DST_SG_SIZE,
+			      reqctx->dst_ofst);
+	dst_size = get_space_for_phys_dsgl(nents + 1);
 	kctx_len = (DIV_ROUND_UP(ablkctx->enckey_len, 16) * 16);
-	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl);
-	skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
+	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
+	nents = sg_nents_xlen(reqctx->srcsg, wrparam->bytes,
+				  CHCR_SRC_SG_SIZE, reqctx->src_ofst);
+	temp = reqctx->imm ? (DIV_ROUND_UP((IV + wrparam->req->nbytes), 16)
+			      * 16) : (sgl_len(nents + MIN_CIPHER_SG) * 8);
+	transhdr_len += temp;
+	transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
+	skb = alloc_skb(SGE_MAX_WR_LEN, flags);
 	if (!skb) {
 		error = -ENOMEM;
 		goto err;
 	}
-	skb_reserve(skb, sizeof(struct sge_opaque_hdr));
 	chcr_req = __skb_put_zero(skb, transhdr_len);
 	chcr_req->sec_cpl.op_ivinsrtofst =
-		FILL_SEC_CPL_OP_IVINSR(ctx->dev->rx_channel_id, 2, 1);
+		FILL_SEC_CPL_OP_IVINSR(c_ctx(tfm)->dev->rx_channel_id, 2, 1);
 
-	chcr_req->sec_cpl.pldlen = htonl(ivsize + wrparam->bytes);
+	chcr_req->sec_cpl.pldlen = htonl(IV + wrparam->bytes);
 	chcr_req->sec_cpl.aadstart_cipherstop_hi =
-			FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, ivsize + 1, 0);
+			FILL_SEC_CPL_CIPHERSTOP_HI(0, 0, IV + 1, 0);
 
 	chcr_req->sec_cpl.cipherstop_lo_authinsert =
 			FILL_SEC_CPL_AUTHINSERT(0, 0, 0, 0);
 	chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(reqctx->op, 0,
 							 ablkctx->ciph_mode,
-							 0, 0, ivsize >> 1);
+							 0, 0, IV >> 1);
 	chcr_req->sec_cpl.ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 0,
-							  0, 1, phys_dsgl);
+							  0, 0, dst_size);
 
 	chcr_req->key_ctx.ctx_hdr = ablkctx->key_ctx_hdr;
 	if ((reqctx->op == CHCR_DECRYPT_OP) &&
@@ -694,26 +827,18 @@ static struct sk_buff *create_cipher_wr(struct cipher_wr_param *wrparam)
 		}
 	}
 	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
-	sg_param.nents = reqctx->dst_nents;
-	sg_param.obsize =  wrparam->bytes;
-	sg_param.qid = wrparam->qid;
-	error = map_writesg_phys_cpl(&u_ctx->lldi.pdev->dev, phys_cpl,
-				       reqctx->dst, &sg_param);
-	if (error)
-		goto map_fail1;
+	ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
+	chcr_add_cipher_src_ent(wrparam->req, ulptx, wrparam);
+	chcr_add_cipher_dst_ent(wrparam->req, phys_cpl, wrparam, wrparam->qid);
 
-	skb_set_transport_header(skb, transhdr_len);
-	write_buffer_to_skb(skb, &frags, reqctx->iv, ivsize);
-	write_sg_to_skb(skb, &frags, wrparam->srcsg, wrparam->bytes);
 	atomic_inc(&adap->chcr_stats.cipher_rqst);
-	create_wreq(ctx, chcr_req, &(wrparam->req->base), skb, kctx_len, 0, 1,
-			sizeof(struct cpl_rx_phys_dsgl) + phys_dsgl,
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size + kctx_len
+		+(reqctx->imm ? (IV + wrparam->bytes) : 0);
+	create_wreq(c_ctx(tfm), chcr_req, &(wrparam->req->base), reqctx->imm, 0,
+		    transhdr_len, temp,
 			ablkctx->ciph_mode == CHCR_SCMD_CIPHER_MODE_AES_CBC);
 	reqctx->skb = skb;
-	skb_get(skb);
 	return skb;
-map_fail1:
-	kfree_skb(skb);
 err:
 	return ERR_PTR(error);
 }
@@ -738,8 +863,7 @@ static int chcr_cipher_fallback_setkey(struct crypto_ablkcipher *cipher,
 				       unsigned int keylen)
 {
 	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(cipher);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
 	int err = 0;
 
 	crypto_skcipher_clear_flags(ablkctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
@@ -757,8 +881,7 @@ static int chcr_aes_cbc_setkey(struct crypto_ablkcipher *cipher,
 			       const u8 *key,
 			       unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(cipher);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
 	unsigned int ck_size, context_size;
 	u16 alignment = 0;
 	int err;
@@ -790,8 +913,7 @@ static int chcr_aes_ctr_setkey(struct crypto_ablkcipher *cipher,
 				   const u8 *key,
 				   unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(cipher);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
 	unsigned int ck_size, context_size;
 	u16 alignment = 0;
 	int err;
@@ -822,8 +944,7 @@ static int chcr_aes_rfc3686_setkey(struct crypto_ablkcipher *cipher,
 				   const u8 *key,
 				   unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(cipher);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
 	unsigned int ck_size, context_size;
 	u16 alignment = 0;
 	int err;
@@ -890,25 +1011,28 @@ static unsigned int adjust_ctr_overflow(u8 *iv, u32 bytes)
 static int chcr_update_tweak(struct ablkcipher_request *req, u8 *iv)
 {
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(tfm);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
 	struct crypto_cipher *cipher;
 	int ret, i;
 	u8 *key;
 	unsigned int keylen;
+	int round = reqctx->last_req_len / AES_BLOCK_SIZE;
+	int round8 = round / 8;
 
 	cipher = ablkctx->aes_generic;
-	memcpy(iv, req->info, AES_BLOCK_SIZE);
+	memcpy(iv, reqctx->iv, AES_BLOCK_SIZE);
 
 	keylen = ablkctx->enckey_len / 2;
 	key = ablkctx->key + keylen;
 	ret = crypto_cipher_setkey(cipher, key, keylen);
 	if (ret)
 		goto out;
+	/*H/W sends the encrypted IV in dsgl when AADIVDROP bit is 0*/
+	for (i = 0; i < round8; i++)
+		gf128mul_x8_ble((le128 *)iv, (le128 *)iv);
 
-	crypto_cipher_encrypt_one(cipher, iv, iv);
-	for (i = 0; i < (reqctx->processed / AES_BLOCK_SIZE); i++)
+	for (i = 0; i < (round % 8); i++)
 		gf128mul_x_ble((le128 *)iv, (le128 *)iv);
 
 	crypto_cipher_decrypt_one(cipher, iv, iv);
@@ -982,65 +1106,60 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
 				   unsigned char *input, int err)
 {
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct sk_buff *skb;
 	struct cpl_fw6_pld *fw6_pld = (struct cpl_fw6_pld *)input;
 	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
 	struct  cipher_wr_param wrparam;
 	int bytes;
 
-	dma_unmap_sg(&u_ctx->lldi.pdev->dev, reqctx->dst, reqctx->dst_nents,
-		     DMA_FROM_DEVICE);
-
-	if (reqctx->skb) {
-		kfree_skb(reqctx->skb);
-		reqctx->skb = NULL;
-	}
 	if (err)
-		goto complete;
-
+		goto unmap;
 	if (req->nbytes == reqctx->processed) {
+		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				      req);
 		err = chcr_final_cipher_iv(req, fw6_pld, req->info);
 		goto complete;
 	}
 
 	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-					    ctx->tx_qidx))) {
+					    c_ctx(tfm)->tx_qidx))) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG)) {
 			err = -EBUSY;
-			goto complete;
+			goto unmap;
 		}
 
 	}
-	wrparam.srcsg = scatterwalk_ffwd(reqctx->srcffwd, req->src,
-				       reqctx->processed);
-	reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd, reqctx->dstsg,
-					 reqctx->processed);
-	if (!wrparam.srcsg || !reqctx->dst) {
-		pr_err("Input sg list length less that nbytes\n");
-		err = -EINVAL;
-		goto complete;
-	}
-	bytes = chcr_sg_ent_in_wr(wrparam.srcsg, reqctx->dst, 1,
-				 SPACE_LEFT(ablkctx->enckey_len),
-				 &wrparam.snent, &reqctx->dst_nents);
+	if (!reqctx->imm) {
+		bytes = chcr_sg_ent_in_wr(reqctx->srcsg, reqctx->dstsg, 1,
+					  SPACE_LEFT(ablkctx->enckey_len),
+					  reqctx->src_ofst, reqctx->dst_ofst);
 	if ((bytes + reqctx->processed) >= req->nbytes)
 		bytes  = req->nbytes - reqctx->processed;
 	else
 		bytes = ROUND_16(bytes);
+	} else {
+		/*CTR mode counter overfloa*/
+		bytes  = req->nbytes - reqctx->processed;
+	}
+	dma_sync_single_for_cpu(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				reqctx->iv_dma, IV, DMA_BIDIRECTIONAL);
 	err = chcr_update_cipher_iv(req, fw6_pld, reqctx->iv);
+	dma_sync_single_for_device(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				   reqctx->iv_dma, IV, DMA_BIDIRECTIONAL);
 	if (err)
-		goto complete;
+		goto unmap;
 
 	if (unlikely(bytes == 0)) {
+		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				      req);
 		err = chcr_cipher_fallback(ablkctx->sw_cipher,
 				     req->base.flags,
-				     wrparam.srcsg,
-				     reqctx->dst,
-				     req->nbytes - reqctx->processed,
-				     reqctx->iv,
+				     req->src,
+				     req->dst,
+				     req->nbytes,
+				     req->info,
 				     reqctx->op);
 		goto complete;
 	}
@@ -1048,23 +1167,24 @@ static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
 	if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
 	    CRYPTO_ALG_SUB_TYPE_CTR)
 		bytes = adjust_ctr_overflow(reqctx->iv, bytes);
-	reqctx->processed += bytes;
-	wrparam.qid = u_ctx->lldi.rxq_ids[ctx->rx_qidx];
+	wrparam.qid = u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx];
 	wrparam.req = req;
 	wrparam.bytes = bytes;
 	skb = create_cipher_wr(&wrparam);
 	if (IS_ERR(skb)) {
 		pr_err("chcr : %s : Failed to form WR. No memory\n", __func__);
 		err = PTR_ERR(skb);
-		goto complete;
+		goto unmap;
 	}
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx);
 	chcr_send_wr(skb);
+	reqctx->last_req_len = bytes;
+	reqctx->processed += bytes;
 	return 0;
+unmap:
+	chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
 complete:
-	free_new_sg(reqctx->newdstsg);
-	reqctx->newdstsg = NULL;
 	req->base.complete(&req->base, err);
 	return err;
 }
@@ -1077,12 +1197,10 @@ static int process_cipher(struct ablkcipher_request *req,
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
 	unsigned int ivsize = crypto_ablkcipher_ivsize(tfm);
 	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(tfm);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(tfm));
 	struct	cipher_wr_param wrparam;
-	int bytes, nents, err = -EINVAL;
+	int bytes, err = -EINVAL;
 
-	reqctx->newdstsg = NULL;
 	reqctx->processed = 0;
 	if (!req->info)
 		goto error;
@@ -1093,25 +1211,41 @@ static int process_cipher(struct ablkcipher_request *req,
 		       ablkctx->enckey_len, req->nbytes, ivsize);
 		goto error;
 	}
-	wrparam.srcsg = req->src;
-	if (is_newsg(req->dst, &nents)) {
-		reqctx->newdstsg = alloc_new_sg(req->dst, nents);
-		if (IS_ERR(reqctx->newdstsg))
-			return PTR_ERR(reqctx->newdstsg);
-		reqctx->dstsg = reqctx->newdstsg;
+	chcr_cipher_dma_map(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
+	if (req->nbytes < (SGE_MAX_WR_LEN - (sizeof(struct chcr_wr) +
+					    AES_MIN_KEY_SIZE +
+					    sizeof(struct cpl_rx_phys_dsgl) +
+					/*Min dsgl size*/
+					    32))) {
+		/* Can be sent as Imm*/
+		unsigned int dnents = 0, transhdr_len, phys_dsgl, kctx_len;
+
+		dnents = sg_nents_xlen(req->dst, req->nbytes,
+				       CHCR_DST_SG_SIZE, 0);
+		dnents += 1; // IV
+		phys_dsgl = get_space_for_phys_dsgl(dnents);
+		kctx_len = (DIV_ROUND_UP(ablkctx->enckey_len, 16) * 16);
+		transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, phys_dsgl);
+		reqctx->imm = (transhdr_len + IV + req->nbytes) <=
+			SGE_MAX_WR_LEN;
+		bytes = IV + req->nbytes;
+
 	} else {
-		reqctx->dstsg = req->dst;
+		reqctx->imm = 0;
 	}
-	bytes = chcr_sg_ent_in_wr(wrparam.srcsg, reqctx->dstsg, MIN_CIPHER_SG,
-				 SPACE_LEFT(ablkctx->enckey_len),
-				 &wrparam.snent,
-				 &reqctx->dst_nents);
+
+	if (!reqctx->imm) {
+		bytes = chcr_sg_ent_in_wr(req->src, req->dst,
+					  MIN_CIPHER_SG,
+					  SPACE_LEFT(ablkctx->enckey_len),
+					  0, 0);
 	if ((bytes + reqctx->processed) >= req->nbytes)
 		bytes  = req->nbytes - reqctx->processed;
 	else
 		bytes = ROUND_16(bytes);
-	if (unlikely(bytes > req->nbytes))
+	} else {
 		bytes = req->nbytes;
+	}
 	if (get_cryptoalg_subtype(crypto_ablkcipher_tfm(tfm)) ==
 				  CRYPTO_ALG_SUB_TYPE_CTR) {
 		bytes = adjust_ctr_overflow(req->info, bytes);
@@ -1128,9 +1262,11 @@ static int process_cipher(struct ablkcipher_request *req,
 
 	} else {
 
-		memcpy(reqctx->iv, req->info, ivsize);
+		memcpy(reqctx->iv, req->info, IV);
 	}
 	if (unlikely(bytes == 0)) {
+		chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev,
+				      req);
 		err = chcr_cipher_fallback(ablkctx->sw_cipher,
 					   req->base.flags,
 					   req->src,
@@ -1140,45 +1276,48 @@ static int process_cipher(struct ablkcipher_request *req,
 					   op_type);
 		goto error;
 	}
-	reqctx->processed = bytes;
-	reqctx->dst = reqctx->dstsg;
 	reqctx->op = op_type;
+	reqctx->srcsg = req->src;
+	reqctx->dstsg = req->dst;
+	reqctx->src_ofst = 0;
+	reqctx->dst_ofst = 0;
 	wrparam.qid = qid;
 	wrparam.req = req;
 	wrparam.bytes = bytes;
 	*skb = create_cipher_wr(&wrparam);
 	if (IS_ERR(*skb)) {
 		err = PTR_ERR(*skb);
-		goto error;
+		goto unmap;
 	}
+	reqctx->processed = bytes;
+	reqctx->last_req_len = bytes;
 
 	return 0;
+unmap:
+	chcr_cipher_dma_unmap(&ULD_CTX(c_ctx(tfm))->lldi.pdev->dev, req);
 error:
-	free_new_sg(reqctx->newdstsg);
-	reqctx->newdstsg = NULL;
 	return err;
 }
 
 static int chcr_aes_encrypt(struct ablkcipher_request *req)
 {
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(tfm);
 	struct sk_buff *skb = NULL;
 	int err;
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
 
 	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-					    ctx->tx_qidx))) {
+					    c_ctx(tfm)->tx_qidx))) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
 			return -EBUSY;
 	}
 
-	err = process_cipher(req, u_ctx->lldi.rxq_ids[ctx->rx_qidx], &skb,
-			       CHCR_ENCRYPT_OP);
+	err = process_cipher(req, u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx],
+			     &skb, CHCR_ENCRYPT_OP);
 	if (err || !skb)
 		return  err;
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx);
 	chcr_send_wr(skb);
 	return -EINPROGRESS;
 }
@@ -1186,23 +1325,22 @@ static int chcr_aes_encrypt(struct ablkcipher_request *req)
 static int chcr_aes_decrypt(struct ablkcipher_request *req)
 {
 	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
+	struct uld_ctx *u_ctx = ULD_CTX(c_ctx(tfm));
 	struct sk_buff *skb = NULL;
 	int err;
 
 	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-					    ctx->tx_qidx))) {
+					    c_ctx(tfm)->tx_qidx))) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
 			return -EBUSY;
 	}
 
-	 err = process_cipher(req, u_ctx->lldi.rxq_ids[ctx->rx_qidx], &skb,
-			       CHCR_DECRYPT_OP);
+	 err = process_cipher(req, u_ctx->lldi.rxq_ids[c_ctx(tfm)->rx_qidx],
+			      &skb, CHCR_DECRYPT_OP);
 	if (err || !skb)
 		return err;
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, c_ctx(tfm)->tx_qidx);
 	chcr_send_wr(skb);
 	return -EINPROGRESS;
 }
@@ -1350,17 +1488,19 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req,
 {
 	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
-	struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
+	struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(tfm));
 	struct sk_buff *skb = NULL;
+	struct uld_ctx *u_ctx = ULD_CTX(h_ctx(tfm));
 	struct chcr_wr *chcr_req;
-	unsigned int frags = 0, transhdr_len, iopad_alignment = 0;
+	struct ulptx_sgl *ulptx;
+	unsigned int nents = 0, transhdr_len, iopad_alignment = 0;
 	unsigned int digestsize = crypto_ahash_digestsize(tfm);
-	unsigned int kctx_len = 0;
+	unsigned int kctx_len = 0, temp = 0;
 	u8 hash_size_in_response = 0;
 	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
 		GFP_ATOMIC;
-	struct adapter *adap = padap(ctx->dev);
+	struct adapter *adap = padap(h_ctx(tfm)->dev);
+	int error = 0;
 
 	iopad_alignment = KEYCTX_ALIGN_PAD(digestsize);
 	kctx_len = param->alg_prm.result_size + iopad_alignment;
@@ -1372,15 +1512,22 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req,
 	else
 		hash_size_in_response = param->alg_prm.result_size;
 	transhdr_len = HASH_TRANSHDR_SIZE(kctx_len);
-	skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
+	req_ctx->imm = (transhdr_len + param->bfr_len + param->sg_len) <=
+		SGE_MAX_WR_LEN;
+	nents = sg_nents_xlen(req->src, param->sg_len, CHCR_SRC_SG_SIZE, 0);
+	nents += param->bfr_len ? 1 : 0;
+	transhdr_len += req_ctx->imm ? (DIV_ROUND_UP((param->bfr_len +
+			param->sg_len), 16) * 16) :
+			(sgl_len(nents) * 8);
+	transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
+
+	skb = alloc_skb(SGE_MAX_WR_LEN, flags);
 	if (!skb)
-		return skb;
-
-	skb_reserve(skb, sizeof(struct sge_opaque_hdr));
+		return ERR_PTR(-ENOMEM);
 	chcr_req = __skb_put_zero(skb, transhdr_len);
 
 	chcr_req->sec_cpl.op_ivinsrtofst =
-		FILL_SEC_CPL_OP_IVINSR(ctx->dev->rx_channel_id, 2, 0);
+		FILL_SEC_CPL_OP_IVINSR(h_ctx(tfm)->dev->rx_channel_id, 2, 0);
 	chcr_req->sec_cpl.pldlen = htonl(param->bfr_len + param->sg_len);
 
 	chcr_req->sec_cpl.aadstart_cipherstop_hi =
@@ -1409,37 +1556,52 @@ static struct sk_buff *create_hash_wr(struct ahash_request *req,
 					    ((kctx_len +
 					     sizeof(chcr_req->key_ctx)) >> 4));
 	chcr_req->sec_cpl.scmd1 = cpu_to_be64((u64)param->scmd1);
-
-	skb_set_transport_header(skb, transhdr_len);
-	if (param->bfr_len != 0)
-		write_buffer_to_skb(skb, &frags, req_ctx->reqbfr,
-				    param->bfr_len);
-	if (param->sg_len != 0)
-		write_sg_to_skb(skb, &frags, req->src, param->sg_len);
+	ulptx = (struct ulptx_sgl *)((u8 *)(chcr_req + 1) + kctx_len +
+				     DUMMY_BYTES);
+	if (param->bfr_len != 0) {
+		req_ctx->dma_addr = dma_map_single(&u_ctx->lldi.pdev->dev,
+					  req_ctx->reqbfr, param->bfr_len,
+					  DMA_TO_DEVICE);
+		if (dma_mapping_error(&u_ctx->lldi.pdev->dev,
+				       req_ctx->dma_addr)) {
+			error = -ENOMEM;
+			goto err;
+		}
+		req_ctx->dma_len = param->bfr_len;
+	} else {
+		req_ctx->dma_addr = 0;
+	}
+	chcr_add_hash_src_ent(req, ulptx, param);
+	/* Request upto max wr size */
+	temp = kctx_len + DUMMY_BYTES + (req_ctx->imm ? (param->sg_len
+					+ param->bfr_len) : 0);
 	atomic_inc(&adap->chcr_stats.digest_rqst);
-	create_wreq(ctx, chcr_req, &req->base, skb, kctx_len,
-		    hash_size_in_response, 0, DUMMY_BYTES, 0);
+	create_wreq(h_ctx(tfm), chcr_req, &req->base, req_ctx->imm,
+		    hash_size_in_response, transhdr_len,
+		    temp,  0);
 	req_ctx->skb = skb;
-	skb_get(skb);
 	return skb;
+err:
+	kfree_skb(skb);
+	return  ERR_PTR(error);
 }
 
 static int chcr_ahash_update(struct ahash_request *req)
 {
 	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
 	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(rtfm));
 	struct uld_ctx *u_ctx = NULL;
 	struct sk_buff *skb;
 	u8 remainder = 0, bs;
 	unsigned int nbytes = req->nbytes;
 	struct hash_wr_param params;
+	int error;
 
 	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
 
-	u_ctx = ULD_CTX(ctx);
+	u_ctx = ULD_CTX(h_ctx(rtfm));
 	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-					    ctx->tx_qidx))) {
+					    h_ctx(rtfm)->tx_qidx))) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
 			return -EBUSY;
 	}
@@ -1453,7 +1615,9 @@ static int chcr_ahash_update(struct ahash_request *req)
 		req_ctx->reqlen += nbytes;
 		return 0;
 	}
-
+	error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
+	if (error)
+		return -ENOMEM;
 	params.opad_needed = 0;
 	params.more = 1;
 	params.last = 0;
@@ -1464,25 +1628,27 @@ static int chcr_ahash_update(struct ahash_request *req)
 	req_ctx->result = 0;
 	req_ctx->data_len += params.sg_len + params.bfr_len;
 	skb = create_hash_wr(req, &params);
-	if (!skb)
-		return -ENOMEM;
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto unmap;
+	}
 
 	if (remainder) {
-		u8 *temp;
 		/* Swap buffers */
-		temp = req_ctx->reqbfr;
-		req_ctx->reqbfr = req_ctx->skbfr;
-		req_ctx->skbfr = temp;
+		swap(req_ctx->reqbfr, req_ctx->skbfr);
 		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
 				   req_ctx->reqbfr, remainder, req->nbytes -
 				   remainder);
 	}
 	req_ctx->reqlen = remainder;
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
 	chcr_send_wr(skb);
 
 	return -EINPROGRESS;
+unmap:
+	chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+	return error;
 }
 
 static void create_last_hash_block(char *bfr_ptr, unsigned int bs, u64 scmd1)
@@ -1499,13 +1665,12 @@ static int chcr_ahash_final(struct ahash_request *req)
 {
 	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
 	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(rtfm));
 	struct hash_wr_param params;
 	struct sk_buff *skb;
 	struct uld_ctx *u_ctx = NULL;
 	u8 bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
 
-	u_ctx = ULD_CTX(ctx);
+	u_ctx = ULD_CTX(h_ctx(rtfm));
 	if (is_hmac(crypto_ahash_tfm(rtfm)))
 		params.opad_needed = 1;
 	else
@@ -1528,11 +1693,11 @@ static int chcr_ahash_final(struct ahash_request *req)
 		params.more = 0;
 	}
 	skb = create_hash_wr(req, &params);
-	if (!skb)
-		return -ENOMEM;
+	if (IS_ERR(skb))
+		return PTR_ERR(skb);
 
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
 	chcr_send_wr(skb);
 	return -EINPROGRESS;
 }
@@ -1541,17 +1706,17 @@ static int chcr_ahash_finup(struct ahash_request *req)
 {
 	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
 	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(rtfm));
 	struct uld_ctx *u_ctx = NULL;
 	struct sk_buff *skb;
 	struct hash_wr_param params;
 	u8  bs;
+	int error;
 
 	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
-	u_ctx = ULD_CTX(ctx);
+	u_ctx = ULD_CTX(h_ctx(rtfm));
 
 	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-					    ctx->tx_qidx))) {
+					    h_ctx(rtfm)->tx_qidx))) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
 			return -EBUSY;
 	}
@@ -1577,34 +1742,41 @@ static int chcr_ahash_finup(struct ahash_request *req)
 		params.last = 1;
 		params.more = 0;
 	}
-
-	skb = create_hash_wr(req, &params);
-	if (!skb)
+	error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
+	if (error)
 		return -ENOMEM;
 
+	skb = create_hash_wr(req, &params);
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto unmap;
+	}
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
 	chcr_send_wr(skb);
 
 	return -EINPROGRESS;
+unmap:
+	chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+	return error;
 }
 
 static int chcr_ahash_digest(struct ahash_request *req)
 {
 	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
 	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(req);
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(rtfm));
 	struct uld_ctx *u_ctx = NULL;
 	struct sk_buff *skb;
 	struct hash_wr_param params;
 	u8  bs;
+	int error;
 
 	rtfm->init(req);
 	bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
 
-	u_ctx = ULD_CTX(ctx);
+	u_ctx = ULD_CTX(h_ctx(rtfm));
 	if (unlikely(cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-					    ctx->tx_qidx))) {
+					    h_ctx(rtfm)->tx_qidx))) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
 			return -EBUSY;
 	}
@@ -1613,6 +1785,9 @@ static int chcr_ahash_digest(struct ahash_request *req)
 		params.opad_needed = 1;
 	else
 		params.opad_needed = 0;
+	error = chcr_hash_dma_map(&u_ctx->lldi.pdev->dev, req);
+	if (error)
+		return -ENOMEM;
 
 	params.last = 0;
 	params.more = 0;
@@ -1630,13 +1805,17 @@ static int chcr_ahash_digest(struct ahash_request *req)
 	}
 
 	skb = create_hash_wr(req, &params);
-	if (!skb)
-		return -ENOMEM;
-
+	if (IS_ERR(skb)) {
+		error = PTR_ERR(skb);
+		goto unmap;
+	}
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, h_ctx(rtfm)->tx_qidx);
 	chcr_send_wr(skb);
 	return -EINPROGRESS;
+unmap:
+	chcr_hash_dma_unmap(&u_ctx->lldi.pdev->dev, req);
+	return error;
 }
 
 static int chcr_ahash_export(struct ahash_request *areq, void *out)
@@ -1646,6 +1825,8 @@ static int chcr_ahash_export(struct ahash_request *areq, void *out)
 
 	state->reqlen = req_ctx->reqlen;
 	state->data_len = req_ctx->data_len;
+	state->is_sg_map = 0;
+	state->result = 0;
 	memcpy(state->bfr1, req_ctx->reqbfr, req_ctx->reqlen);
 	memcpy(state->partial_hash, req_ctx->partial_hash,
 	       CHCR_HASH_MAX_DIGEST_SIZE);
@@ -1661,6 +1842,8 @@ static int chcr_ahash_import(struct ahash_request *areq, const void *in)
 	req_ctx->data_len = state->data_len;
 	req_ctx->reqbfr = req_ctx->bfr1;
 	req_ctx->skbfr = req_ctx->bfr2;
+	req_ctx->is_sg_map = 0;
+	req_ctx->result = 0;
 	memcpy(req_ctx->bfr1, state->bfr1, CHCR_HASH_MAX_BLOCK_SIZE_128);
 	memcpy(req_ctx->partial_hash, state->partial_hash,
 	       CHCR_HASH_MAX_DIGEST_SIZE);
@@ -1670,8 +1853,7 @@ static int chcr_ahash_import(struct ahash_request *areq, const void *in)
 static int chcr_ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
 			     unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
-	struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
+	struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(tfm));
 	unsigned int digestsize = crypto_ahash_digestsize(tfm);
 	unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
 	unsigned int i, err = 0, updated_digestsize;
@@ -1724,8 +1906,7 @@ out:
 static int chcr_aes_xts_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 			       unsigned int key_len)
 {
-	struct chcr_context *ctx = crypto_ablkcipher_ctx(cipher);
-	struct ablk_ctx *ablkctx = ABLK_CTX(ctx);
+	struct ablk_ctx *ablkctx = ABLK_CTX(c_ctx(cipher));
 	unsigned short context_size = 0;
 	int err;
 
@@ -1764,6 +1945,7 @@ static int chcr_sha_init(struct ahash_request *areq)
 	req_ctx->skbfr = req_ctx->bfr2;
 	req_ctx->skb = NULL;
 	req_ctx->result = 0;
+	req_ctx->is_sg_map = 0;
 	copy_hash_init_values(req_ctx->partial_hash, digestsize);
 	return 0;
 }
@@ -1779,8 +1961,7 @@ static int chcr_hmac_init(struct ahash_request *areq)
 {
 	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
 	struct crypto_ahash *rtfm = crypto_ahash_reqtfm(areq);
-	struct chcr_context *ctx = crypto_tfm_ctx(crypto_ahash_tfm(rtfm));
-	struct hmac_ctx *hmacctx = HMAC_CTX(ctx);
+	struct hmac_ctx *hmacctx = HMAC_CTX(h_ctx(rtfm));
 	unsigned int digestsize = crypto_ahash_digestsize(rtfm);
 	unsigned int bs = crypto_tfm_alg_blocksize(crypto_ahash_tfm(rtfm));
 
@@ -1826,86 +2007,48 @@ static void chcr_hmac_cra_exit(struct crypto_tfm *tfm)
 	}
 }
 
-static int is_newsg(struct scatterlist *sgl, unsigned int *newents)
-{
-	int nents = 0;
-	int ret = 0;
-
-	while (sgl) {
-		if (sgl->length > CHCR_SG_SIZE)
-			ret = 1;
-		nents += DIV_ROUND_UP(sgl->length, CHCR_SG_SIZE);
-		sgl = sg_next(sgl);
-	}
-	*newents = nents;
-	return ret;
-}
-
-static inline void free_new_sg(struct scatterlist *sgl)
+static int chcr_aead_common_init(struct aead_request *req,
+				 unsigned short op_type)
 {
-	kfree(sgl);
-}
-
-static struct scatterlist *alloc_new_sg(struct scatterlist *sgl,
-				       unsigned int nents)
-{
-	struct scatterlist *newsg, *sg;
-	int i, len, processed = 0;
-	struct page *spage;
-	int offset;
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
+	struct chcr_aead_reqctx  *reqctx = aead_request_ctx(req);
+	int error = -EINVAL;
+	unsigned int dst_size;
+	unsigned int authsize = crypto_aead_authsize(tfm);
 
-	newsg = kmalloc_array(nents, sizeof(struct scatterlist), GFP_KERNEL);
-	if (!newsg)
-		return ERR_PTR(-ENOMEM);
-	sg = newsg;
-	sg_init_table(sg, nents);
-	offset = sgl->offset;
-	spage = sg_page(sgl);
-	for (i = 0; i < nents; i++) {
-		len = min_t(u32, sgl->length - processed, CHCR_SG_SIZE);
-		sg_set_page(sg, spage, len, offset);
-		processed += len;
-		offset += len;
-		if (offset >= PAGE_SIZE) {
-			offset = offset % PAGE_SIZE;
-			spage++;
-		}
-		if (processed == sgl->length) {
-			processed = 0;
-			sgl = sg_next(sgl);
-			if (!sgl)
-				break;
-			spage = sg_page(sgl);
-			offset = sgl->offset;
-		}
-		sg = sg_next(sg);
+	dst_size = req->assoclen + req->cryptlen + (op_type ?
+					-authsize : authsize);
+	/* validate key size */
+	if (aeadctx->enckey_len == 0)
+		goto err;
+	if (op_type && req->cryptlen < authsize)
+		goto err;
+	error = chcr_aead_dma_map(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
+				  op_type);
+	if (error) {
+		error = -ENOMEM;
+		goto err;
 	}
-	return newsg;
+	reqctx->aad_nents = sg_nents_xlen(req->src, req->assoclen,
+					  CHCR_SRC_SG_SIZE, 0);
+	reqctx->src_nents = sg_nents_xlen(req->src, req->cryptlen,
+					  CHCR_SRC_SG_SIZE, req->assoclen);
+	return 0;
+err:
+	return error;
 }
 
-static int chcr_copy_assoc(struct aead_request *req,
-				struct chcr_aead_ctx *ctx)
-{
-	SKCIPHER_REQUEST_ON_STACK(skreq, ctx->null);
-
-	skcipher_request_set_tfm(skreq, ctx->null);
-	skcipher_request_set_callback(skreq, aead_request_flags(req),
-			NULL, NULL);
-	skcipher_request_set_crypt(skreq, req->src, req->dst, req->assoclen,
-			NULL);
-
-	return crypto_skcipher_encrypt(skreq);
-}
-static int chcr_aead_need_fallback(struct aead_request *req, int src_nent,
+static int chcr_aead_need_fallback(struct aead_request *req, int dst_nents,
 				   int aadmax, int wrlen,
 				   unsigned short op_type)
 {
 	unsigned int authsize = crypto_aead_authsize(crypto_aead_reqtfm(req));
 
 	if (((req->cryptlen - (op_type ? authsize : 0)) == 0) ||
+	    dst_nents > MAX_DSGL_ENT ||
 	    (req->assoclen > aadmax) ||
-	    (src_nent > MAX_SKB_FRAGS) ||
-	    (wrlen > MAX_WR_SIZE))
+	    (wrlen > SGE_MAX_WR_LEN))
 		return 1;
 	return 0;
 }
@@ -1913,8 +2056,7 @@ static int chcr_aead_need_fallback(struct aead_request *req, int src_nent,
 static int chcr_aead_fallback(struct aead_request *req, unsigned short op_type)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	struct aead_request *subreq = aead_request_ctx(req);
 
 	aead_request_set_tfm(subreq, aeadctx->sw_cipher);
@@ -1933,96 +2075,75 @@ static struct sk_buff *create_authenc_wr(struct aead_request *req,
 					 unsigned short op_type)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
 	struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
 	struct sk_buff *skb = NULL;
 	struct chcr_wr *chcr_req;
 	struct cpl_rx_phys_dsgl *phys_cpl;
-	struct phys_sge_parm sg_param;
-	struct scatterlist *src;
-	unsigned int frags = 0, transhdr_len;
-	unsigned int ivsize = crypto_aead_ivsize(tfm), dst_size = 0;
-	unsigned int   kctx_len = 0, nents;
-	unsigned short stop_offset = 0;
+	struct ulptx_sgl *ulptx;
+	unsigned int transhdr_len;
+	unsigned int dst_size = 0, temp;
+	unsigned int   kctx_len = 0, dnents;
 	unsigned int  assoclen = req->assoclen;
 	unsigned int  authsize = crypto_aead_authsize(tfm);
-	int error = -EINVAL, src_nent;
+	int error = -EINVAL;
 	int null = 0;
 	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
 		GFP_ATOMIC;
-	struct adapter *adap = padap(ctx->dev);
+	struct adapter *adap = padap(a_ctx(tfm)->dev);
 
-	reqctx->newdstsg = NULL;
-	dst_size = req->assoclen + req->cryptlen + (op_type ? -authsize :
-						   authsize);
-	if (aeadctx->enckey_len == 0 || (req->cryptlen <= 0))
-		goto err;
-
-	if (op_type && req->cryptlen < crypto_aead_authsize(tfm))
-		goto err;
-	src_nent = sg_nents_for_len(req->src, req->assoclen + req->cryptlen);
-	if (src_nent < 0)
-		goto err;
-	src = scatterwalk_ffwd(reqctx->srcffwd, req->src, req->assoclen);
+	if (req->cryptlen == 0)
+		return NULL;
 
-	if (req->src != req->dst) {
-		error = chcr_copy_assoc(req, aeadctx);
-		if (error)
-			return ERR_PTR(error);
-	}
-	if (dst_size && is_newsg(req->dst, &nents)) {
-		reqctx->newdstsg = alloc_new_sg(req->dst, nents);
-		if (IS_ERR(reqctx->newdstsg))
-			return ERR_CAST(reqctx->newdstsg);
-		reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd,
-					       reqctx->newdstsg, req->assoclen);
-	} else {
-		if (req->src == req->dst)
-			reqctx->dst = src;
-		else
-			reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd,
-						       req->dst, req->assoclen);
-	}
+	reqctx->b0_dma = 0;
 	if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_NULL) {
 		null = 1;
 		assoclen = 0;
 	}
-	reqctx->dst_nents = sg_nents_for_len(reqctx->dst, req->cryptlen +
-					     (op_type ? -authsize : authsize));
-	if (reqctx->dst_nents < 0) {
-		pr_err("AUTHENC:Invalid Destination sg entries\n");
-		error = -EINVAL;
-		goto err;
+	dst_size = assoclen + req->cryptlen + (op_type ? -authsize :
+						    authsize);
+	error = chcr_aead_common_init(req, op_type);
+	if (error)
+		return ERR_PTR(error);
+	if (dst_size) {
+		dnents = sg_nents_xlen(req->dst, assoclen, CHCR_DST_SG_SIZE, 0);
+		dnents += sg_nents_xlen(req->dst, req->cryptlen +
+			(op_type ? -authsize : authsize), CHCR_DST_SG_SIZE,
+			req->assoclen);
+		dnents += MIN_AUTH_SG; // For IV
+	} else {
+		dnents = 0;
 	}
-	dst_size = get_space_for_phys_dsgl(reqctx->dst_nents);
+
+	dst_size = get_space_for_phys_dsgl(dnents);
 	kctx_len = (ntohl(KEY_CONTEXT_CTX_LEN_V(aeadctx->key_ctx_hdr)) << 4)
 		- sizeof(chcr_req->key_ctx);
 	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
-	if (chcr_aead_need_fallback(req, src_nent + MIN_AUTH_SG,
-			T6_MAX_AAD_SIZE,
-			transhdr_len + (sgl_len(src_nent + MIN_AUTH_SG) * 8),
-				op_type)) {
+	reqctx->imm = (transhdr_len + assoclen + IV + req->cryptlen) <
+			SGE_MAX_WR_LEN;
+	temp = reqctx->imm ? (DIV_ROUND_UP((assoclen + IV + req->cryptlen), 16)
+			* 16) : (sgl_len(reqctx->src_nents + reqctx->aad_nents
+			+ MIN_GCM_SG) * 8);
+	transhdr_len += temp;
+	transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
+
+	if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
+				    transhdr_len, op_type)) {
 		atomic_inc(&adap->chcr_stats.fallback);
-		free_new_sg(reqctx->newdstsg);
-		reqctx->newdstsg = NULL;
+		chcr_aead_dma_unmap(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
+				    op_type);
 		return ERR_PTR(chcr_aead_fallback(req, op_type));
 	}
-	skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
+	skb = alloc_skb(SGE_MAX_WR_LEN, flags);
 	if (!skb) {
 		error = -ENOMEM;
 		goto err;
 	}
 
-	/* LLD is going to write the sge hdr. */
-	skb_reserve(skb, sizeof(struct sge_opaque_hdr));
-
-	/* Write WR */
 	chcr_req = __skb_put_zero(skb, transhdr_len);
 
-	stop_offset = (op_type == CHCR_ENCRYPT_OP) ? 0 : authsize;
+	temp  = (op_type == CHCR_ENCRYPT_OP) ? 0 : authsize;
 
 	/*
 	 * Input order	is AAD,IV and Payload. where IV should be included as
@@ -2030,24 +2151,24 @@ static struct sk_buff *create_authenc_wr(struct aead_request *req,
 	 * to the hardware spec
 	 */
 	chcr_req->sec_cpl.op_ivinsrtofst =
-		FILL_SEC_CPL_OP_IVINSR(ctx->dev->rx_channel_id, 2,
-				       (ivsize ? (assoclen + 1) : 0));
-	chcr_req->sec_cpl.pldlen = htonl(assoclen + ivsize + req->cryptlen);
+		FILL_SEC_CPL_OP_IVINSR(a_ctx(tfm)->dev->rx_channel_id, 2,
+				       assoclen + 1);
+	chcr_req->sec_cpl.pldlen = htonl(assoclen + IV + req->cryptlen);
 	chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
 					assoclen ? 1 : 0, assoclen,
-					assoclen + ivsize + 1,
-					(stop_offset & 0x1F0) >> 4);
+					assoclen + IV + 1,
+					(temp & 0x1F0) >> 4);
 	chcr_req->sec_cpl.cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(
-					stop_offset & 0xF,
-					null ? 0 : assoclen + ivsize + 1,
-					stop_offset, stop_offset);
+					temp & 0xF,
+					null ? 0 : assoclen + IV + 1,
+					temp, temp);
 	chcr_req->sec_cpl.seqno_numivs = FILL_SEC_CPL_SCMD0_SEQNO(op_type,
 					(op_type == CHCR_ENCRYPT_OP) ? 1 : 0,
 					CHCR_SCMD_CIPHER_MODE_AES_CBC,
 					actx->auth_mode, aeadctx->hmac_ctrl,
-					ivsize >> 1);
+					IV >> 1);
 	chcr_req->sec_cpl.ivgen_hdrlen =  FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
-					 0, 1, dst_size);
+					 0, 0, dst_size);
 
 	chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
 	if (op_type == CHCR_ENCRYPT_OP)
@@ -2060,41 +2181,312 @@ static struct sk_buff *create_authenc_wr(struct aead_request *req,
 	memcpy(chcr_req->key_ctx.key + (DIV_ROUND_UP(aeadctx->enckey_len, 16) <<
 					4), actx->h_iopad, kctx_len -
 				(DIV_ROUND_UP(aeadctx->enckey_len, 16) << 4));
-
+	memcpy(reqctx->iv, req->iv, IV);
 	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
-	sg_param.nents = reqctx->dst_nents;
-	sg_param.obsize = req->cryptlen + (op_type ? -authsize : authsize);
-	sg_param.qid = qid;
-	error = map_writesg_phys_cpl(&u_ctx->lldi.pdev->dev, phys_cpl,
-					reqctx->dst, &sg_param);
-	if (error)
-		goto dstmap_fail;
-
-	skb_set_transport_header(skb, transhdr_len);
-
-	if (assoclen) {
-		/* AAD buffer in */
-		write_sg_to_skb(skb, &frags, req->src, assoclen);
-
-	}
-	write_buffer_to_skb(skb, &frags, req->iv, ivsize);
-	write_sg_to_skb(skb, &frags, src, req->cryptlen);
+	ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
+	chcr_add_aead_dst_ent(req, phys_cpl, assoclen, op_type, qid);
+	chcr_add_aead_src_ent(req, ulptx, assoclen, op_type);
 	atomic_inc(&adap->chcr_stats.cipher_rqst);
-	create_wreq(ctx, chcr_req, &req->base, skb, kctx_len, size, 1,
-		   sizeof(struct cpl_rx_phys_dsgl) + dst_size, 0);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size +
+		kctx_len + (reqctx->imm ? (assoclen + IV + req->cryptlen) : 0);
+	create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size,
+		   transhdr_len, temp, 0);
 	reqctx->skb = skb;
-	skb_get(skb);
+	reqctx->op = op_type;
 
 	return skb;
-dstmap_fail:
-	/* ivmap_fail: */
-	kfree_skb(skb);
 err:
-	free_new_sg(reqctx->newdstsg);
-	reqctx->newdstsg = NULL;
+	chcr_aead_dma_unmap(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
+			    op_type);
+
 	return ERR_PTR(error);
 }
 
+static int chcr_aead_dma_map(struct device *dev,
+			     struct aead_request *req,
+			     unsigned short op_type)
+{
+	int error;
+	struct chcr_aead_reqctx  *reqctx = aead_request_ctx(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int dst_size;
+
+	dst_size = req->assoclen + req->cryptlen + (op_type ?
+				-authsize : authsize);
+	if (!req->cryptlen || !dst_size)
+		return 0;
+	reqctx->iv_dma = dma_map_single(dev, reqctx->iv, IV,
+					DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(dev, reqctx->iv_dma))
+		return -ENOMEM;
+
+	if (req->src == req->dst) {
+		error = dma_map_sg(dev, req->src, sg_nents(req->src),
+				   DMA_BIDIRECTIONAL);
+		if (!error)
+			goto err;
+	} else {
+		error = dma_map_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+		if (!error)
+			goto err;
+		error = dma_map_sg(dev, req->dst, sg_nents(req->dst),
+				   DMA_FROM_DEVICE);
+		if (!error) {
+			dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	dma_unmap_single(dev, reqctx->iv_dma, IV, DMA_BIDIRECTIONAL);
+	return -ENOMEM;
+}
+
+static void chcr_aead_dma_unmap(struct device *dev,
+			     struct aead_request *req,
+			     unsigned short op_type)
+{
+	struct chcr_aead_reqctx  *reqctx = aead_request_ctx(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	int dst_size;
+
+	dst_size = req->assoclen + req->cryptlen + (op_type ?
+					-authsize : authsize);
+	if (!req->cryptlen || !dst_size)
+		return;
+
+	dma_unmap_single(dev, reqctx->iv_dma, IV,
+					DMA_BIDIRECTIONAL);
+	if (req->src == req->dst) {
+		dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_BIDIRECTIONAL);
+	} else {
+		dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+		dma_unmap_sg(dev, req->dst, sg_nents(req->dst),
+				   DMA_FROM_DEVICE);
+	}
+}
+
+static inline void chcr_add_aead_src_ent(struct aead_request *req,
+			       struct ulptx_sgl *ulptx,
+			       unsigned int assoclen,
+			       unsigned short op_type)
+{
+	struct ulptx_walk ulp_walk;
+	struct chcr_aead_reqctx  *reqctx = aead_request_ctx(req);
+
+	if (reqctx->imm) {
+		u8 *buf = (u8 *)ulptx;
+
+		if (reqctx->b0_dma) {
+			memcpy(buf, reqctx->scratch_pad, reqctx->b0_len);
+			buf += reqctx->b0_len;
+		}
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   buf, assoclen, 0);
+		buf += assoclen;
+		memcpy(buf, reqctx->iv, IV);
+		buf += IV;
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   buf, req->cryptlen, req->assoclen);
+	} else {
+		ulptx_walk_init(&ulp_walk, ulptx);
+		if (reqctx->b0_dma)
+			ulptx_walk_add_page(&ulp_walk, reqctx->b0_len,
+					    &reqctx->b0_dma);
+		ulptx_walk_add_sg(&ulp_walk, req->src, assoclen, 0);
+		ulptx_walk_add_page(&ulp_walk, IV, &reqctx->iv_dma);
+		ulptx_walk_add_sg(&ulp_walk, req->src, req->cryptlen,
+				  req->assoclen);
+		ulptx_walk_end(&ulp_walk);
+	}
+}
+
+static inline void chcr_add_aead_dst_ent(struct aead_request *req,
+			       struct cpl_rx_phys_dsgl *phys_cpl,
+			       unsigned int assoclen,
+			       unsigned short op_type,
+			       unsigned short qid)
+{
+	struct chcr_aead_reqctx  *reqctx = aead_request_ctx(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct dsgl_walk dsgl_walk;
+	unsigned int authsize = crypto_aead_authsize(tfm);
+	u32 temp;
+
+	dsgl_walk_init(&dsgl_walk, phys_cpl);
+	if (reqctx->b0_dma)
+		dsgl_walk_add_page(&dsgl_walk, reqctx->b0_len, &reqctx->b0_dma);
+	dsgl_walk_add_sg(&dsgl_walk, req->dst, assoclen, 0);
+	dsgl_walk_add_page(&dsgl_walk, IV, &reqctx->iv_dma);
+	temp = req->cryptlen + (op_type ? -authsize : authsize);
+	dsgl_walk_add_sg(&dsgl_walk, req->dst, temp, req->assoclen);
+	dsgl_walk_end(&dsgl_walk, qid);
+}
+
+static inline void chcr_add_cipher_src_ent(struct ablkcipher_request *req,
+					   struct ulptx_sgl *ulptx,
+					   struct  cipher_wr_param *wrparam)
+{
+	struct ulptx_walk ulp_walk;
+	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+
+	if (reqctx->imm) {
+		u8 *buf = (u8 *)ulptx;
+
+		memcpy(buf, reqctx->iv, IV);
+		buf += IV;
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   buf, wrparam->bytes, reqctx->processed);
+	} else {
+		ulptx_walk_init(&ulp_walk, ulptx);
+		ulptx_walk_add_page(&ulp_walk, IV, &reqctx->iv_dma);
+		ulptx_walk_add_sg(&ulp_walk, reqctx->srcsg, wrparam->bytes,
+				  reqctx->src_ofst);
+		reqctx->srcsg = ulp_walk.last_sg;
+		reqctx->src_ofst = ulp_walk.last_sg_len;
+		ulptx_walk_end(&ulp_walk);
+	}
+}
+
+static inline void chcr_add_cipher_dst_ent(struct ablkcipher_request *req,
+					   struct cpl_rx_phys_dsgl *phys_cpl,
+					   struct  cipher_wr_param *wrparam,
+					   unsigned short qid)
+{
+	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+	struct dsgl_walk dsgl_walk;
+
+	dsgl_walk_init(&dsgl_walk, phys_cpl);
+	dsgl_walk_add_page(&dsgl_walk, IV, &reqctx->iv_dma);
+	dsgl_walk_add_sg(&dsgl_walk, reqctx->dstsg, wrparam->bytes,
+			 reqctx->dst_ofst);
+	reqctx->dstsg = dsgl_walk.last_sg;
+	reqctx->dst_ofst = dsgl_walk.last_sg_len;
+
+	dsgl_walk_end(&dsgl_walk, qid);
+}
+
+static inline void chcr_add_hash_src_ent(struct ahash_request *req,
+					   struct ulptx_sgl *ulptx,
+					   struct hash_wr_param *param)
+{
+	struct ulptx_walk ulp_walk;
+	struct chcr_ahash_req_ctx *reqctx = ahash_request_ctx(req);
+
+	if (reqctx->imm) {
+		u8 *buf = (u8 *)ulptx;
+
+		if (param->bfr_len) {
+			memcpy(buf, reqctx->reqbfr, param->bfr_len);
+			buf += param->bfr_len;
+		}
+		sg_pcopy_to_buffer(req->src, sg_nents(req->src),
+				   buf, param->sg_len, 0);
+	} else {
+		ulptx_walk_init(&ulp_walk, ulptx);
+		if (param->bfr_len)
+			ulptx_walk_add_page(&ulp_walk, param->bfr_len,
+					    &reqctx->dma_addr);
+		ulptx_walk_add_sg(&ulp_walk, req->src, param->sg_len,
+					  0);
+//	       reqctx->srcsg = ulp_walk.last_sg;
+//	       reqctx->src_ofst = ulp_walk.last_sg_len;
+			ulptx_walk_end(&ulp_walk);
+	}
+}
+
+
+static inline int chcr_hash_dma_map(struct device *dev,
+			     struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+	int error = 0;
+
+	if (!req->nbytes)
+		return 0;
+	error = dma_map_sg(dev, req->src, sg_nents(req->src),
+			   DMA_TO_DEVICE);
+	if (!error)
+		return error;
+	req_ctx->is_sg_map = 1;
+	return 0;
+}
+
+static inline void chcr_hash_dma_unmap(struct device *dev,
+			     struct ahash_request *req)
+{
+	struct chcr_ahash_req_ctx *req_ctx = ahash_request_ctx(req);
+
+	if (!req->nbytes)
+		return;
+
+	dma_unmap_sg(dev, req->src, sg_nents(req->src),
+			   DMA_TO_DEVICE);
+	req_ctx->is_sg_map = 0;
+
+}
+
+
+static int chcr_cipher_dma_map(struct device *dev,
+			     struct ablkcipher_request *req)
+{
+	int error;
+	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+
+	reqctx->iv_dma = dma_map_single(dev, reqctx->iv, IV,
+					DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(dev, reqctx->iv_dma))
+		return -ENOMEM;
+
+	if (req->src == req->dst) {
+		error = dma_map_sg(dev, req->src, sg_nents(req->src),
+				   DMA_BIDIRECTIONAL);
+		if (!error)
+			goto err;
+	} else {
+		error = dma_map_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+		if (!error)
+			goto err;
+		error = dma_map_sg(dev, req->dst, sg_nents(req->dst),
+				   DMA_FROM_DEVICE);
+		if (!error) {
+			dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	dma_unmap_single(dev, reqctx->iv_dma, IV, DMA_BIDIRECTIONAL);
+	return -ENOMEM;
+}
+static void chcr_cipher_dma_unmap(struct device *dev,
+				  struct ablkcipher_request *req)
+{
+	struct chcr_blkcipher_req_ctx *reqctx = ablkcipher_request_ctx(req);
+
+	dma_unmap_single(dev, reqctx->iv_dma, IV,
+					DMA_BIDIRECTIONAL);
+	if (req->src == req->dst) {
+		dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_BIDIRECTIONAL);
+	} else {
+		dma_unmap_sg(dev, req->src, sg_nents(req->src),
+				   DMA_TO_DEVICE);
+		dma_unmap_sg(dev, req->dst, sg_nents(req->dst),
+				   DMA_FROM_DEVICE);
+	}
+}
+
 static int set_msg_len(u8 *block, unsigned int msglen, int csize)
 {
 	__be32 data;
@@ -2179,15 +2571,13 @@ static int ccm_format_packet(struct aead_request *req,
 static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
 				  unsigned int dst_size,
 				  struct aead_request *req,
-				  unsigned short op_type,
-					  struct chcr_context *chcrctx)
+				  unsigned short op_type)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
-	unsigned int ivsize = AES_BLOCK_SIZE;
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	unsigned int cipher_mode = CHCR_SCMD_CIPHER_MODE_AES_CCM;
 	unsigned int mac_mode = CHCR_SCMD_AUTH_MODE_CBCMAC;
-	unsigned int c_id = chcrctx->dev->rx_channel_id;
+	unsigned int c_id = a_ctx(tfm)->dev->rx_channel_id;
 	unsigned int ccm_xtra;
 	unsigned char tag_offset = 0, auth_offset = 0;
 	unsigned int assoclen;
@@ -2200,7 +2590,7 @@ static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
 		((assoclen) ? CCM_AAD_FIELD_SIZE : 0);
 
 	auth_offset = req->cryptlen ?
-		(assoclen + ivsize + 1 + ccm_xtra) : 0;
+		(assoclen + IV + 1 + ccm_xtra) : 0;
 	if (op_type == CHCR_DECRYPT_OP) {
 		if (crypto_aead_authsize(tfm) != req->cryptlen)
 			tag_offset = crypto_aead_authsize(tfm);
@@ -2210,14 +2600,13 @@ static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
 
 
 	sec_cpl->op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(c_id,
-					 2, (ivsize ?  (assoclen + 1) :  0) +
-					 ccm_xtra);
+					 2, assoclen + 1 + ccm_xtra);
 	sec_cpl->pldlen =
-		htonl(assoclen + ivsize + req->cryptlen + ccm_xtra);
+		htonl(assoclen + IV + req->cryptlen + ccm_xtra);
 	/* For CCM there wil be b0 always. So AAD start will be 1 always */
 	sec_cpl->aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
 					1, assoclen + ccm_xtra, assoclen
-					+ ivsize + 1 + ccm_xtra, 0);
+					+ IV + 1 + ccm_xtra, 0);
 
 	sec_cpl->cipherstop_lo_authinsert = FILL_SEC_CPL_AUTHINSERT(0,
 					auth_offset, tag_offset,
@@ -2226,10 +2615,10 @@ static void fill_sec_cpl_for_aead(struct cpl_tx_sec_pdu *sec_cpl,
 	sec_cpl->seqno_numivs =  FILL_SEC_CPL_SCMD0_SEQNO(op_type,
 					(op_type == CHCR_ENCRYPT_OP) ? 0 : 1,
 					cipher_mode, mac_mode,
-					aeadctx->hmac_ctrl, ivsize >> 1);
+					aeadctx->hmac_ctrl, IV >> 1);
 
 	sec_cpl->ivgen_hdrlen = FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1, 0,
-					1, dst_size);
+					0, dst_size);
 }
 
 int aead_ccm_validate_input(unsigned short op_type,
@@ -2249,131 +2638,83 @@ int aead_ccm_validate_input(unsigned short op_type,
 			return -EINVAL;
 		}
 	}
-	if (aeadctx->enckey_len == 0) {
-		pr_err("CCM: Encryption key not set\n");
-		return -EINVAL;
-	}
 	return 0;
 }
 
-unsigned int fill_aead_req_fields(struct sk_buff *skb,
-				  struct aead_request *req,
-				  struct scatterlist *src,
-				  unsigned int ivsize,
-				  struct chcr_aead_ctx *aeadctx)
-{
-	unsigned int frags = 0;
-	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
-	/* b0 and aad length(if available) */
-
-	write_buffer_to_skb(skb, &frags, reqctx->scratch_pad, CCM_B0_SIZE +
-				(req->assoclen ?  CCM_AAD_FIELD_SIZE : 0));
-	if (req->assoclen) {
-		if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
-			write_sg_to_skb(skb, &frags, req->src,
-					req->assoclen - 8);
-		else
-			write_sg_to_skb(skb, &frags, req->src, req->assoclen);
-	}
-	write_buffer_to_skb(skb, &frags, reqctx->iv, ivsize);
-	if (req->cryptlen)
-		write_sg_to_skb(skb, &frags, src, req->cryptlen);
-
-	return frags;
-}
-
 static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
 					  unsigned short qid,
 					  int size,
 					  unsigned short op_type)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
 	struct sk_buff *skb = NULL;
 	struct chcr_wr *chcr_req;
 	struct cpl_rx_phys_dsgl *phys_cpl;
-	struct phys_sge_parm sg_param;
-	struct scatterlist *src;
-	unsigned int frags = 0, transhdr_len, ivsize = AES_BLOCK_SIZE;
-	unsigned int dst_size = 0, kctx_len, nents;
-	unsigned int sub_type;
+	struct ulptx_sgl *ulptx;
+	unsigned int transhdr_len;
+	unsigned int dst_size = 0, kctx_len, dnents, temp;
+	unsigned int sub_type, assoclen = req->assoclen;
 	unsigned int authsize = crypto_aead_authsize(tfm);
-	int error = -EINVAL, src_nent;
+	int error = -EINVAL;
 	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
 		GFP_ATOMIC;
-	struct adapter *adap = padap(ctx->dev);
+	struct adapter *adap = padap(a_ctx(tfm)->dev);
 
-	dst_size = req->assoclen + req->cryptlen + (op_type ? -authsize :
+	reqctx->b0_dma = 0;
+	sub_type = get_aead_subtype(tfm);
+	if (sub_type == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309)
+		assoclen -= 8;
+	dst_size = assoclen + req->cryptlen + (op_type ? -authsize :
 						   authsize);
-	reqctx->newdstsg = NULL;
-	if (op_type && req->cryptlen < crypto_aead_authsize(tfm))
-		goto err;
-	src_nent = sg_nents_for_len(req->src, req->assoclen + req->cryptlen);
-	if (src_nent < 0)
-		goto err;
+	error = chcr_aead_common_init(req, op_type);
+	if (error)
+		return ERR_PTR(error);
 
-	sub_type = get_aead_subtype(tfm);
-	src = scatterwalk_ffwd(reqctx->srcffwd, req->src, req->assoclen);
-	if (req->src != req->dst) {
-		error = chcr_copy_assoc(req, aeadctx);
-		if (error) {
-			pr_err("AAD copy to destination buffer fails\n");
-			return ERR_PTR(error);
-		}
-	}
-	if (dst_size && is_newsg(req->dst, &nents)) {
-		reqctx->newdstsg = alloc_new_sg(req->dst, nents);
-		if (IS_ERR(reqctx->newdstsg))
-			return ERR_CAST(reqctx->newdstsg);
-		reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd,
-					       reqctx->newdstsg, req->assoclen);
-	} else {
-		if (req->src == req->dst)
-			reqctx->dst = src;
-		else
-			reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd,
-						       req->dst, req->assoclen);
-	}
-	reqctx->dst_nents = sg_nents_for_len(reqctx->dst, req->cryptlen +
-					     (op_type ? -authsize : authsize));
-	if (reqctx->dst_nents < 0) {
-		pr_err("CCM:Invalid Destination sg entries\n");
-		error = -EINVAL;
-		goto err;
-	}
+
+	reqctx->b0_len = CCM_B0_SIZE + (assoclen ? CCM_AAD_FIELD_SIZE : 0);
 	error = aead_ccm_validate_input(op_type, req, aeadctx, sub_type);
 	if (error)
 		goto err;
-
-	dst_size = get_space_for_phys_dsgl(reqctx->dst_nents);
+	if (dst_size) {
+		dnents = sg_nents_xlen(req->dst, assoclen, CHCR_DST_SG_SIZE, 0);
+		dnents += sg_nents_xlen(req->dst, req->cryptlen
+				+ (op_type ? -authsize : authsize),
+				CHCR_DST_SG_SIZE, req->assoclen);
+		dnents += MIN_CCM_SG; // For IV and B0
+	} else {
+		dnents = 0;
+	}
+	dst_size = get_space_for_phys_dsgl(dnents);
 	kctx_len = ((DIV_ROUND_UP(aeadctx->enckey_len, 16)) << 4) * 2;
 	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
-	if (chcr_aead_need_fallback(req, src_nent + MIN_CCM_SG,
-			    T6_MAX_AAD_SIZE - 18,
-			    transhdr_len + (sgl_len(src_nent + MIN_CCM_SG) * 8),
-			    op_type)) {
+	reqctx->imm = (transhdr_len + assoclen + IV + req->cryptlen +
+		       reqctx->b0_len) <= SGE_MAX_WR_LEN;
+	temp = reqctx->imm ? (DIV_ROUND_UP((assoclen + IV + req->cryptlen +
+				reqctx->b0_len), 16) * 16) :
+		(sgl_len(reqctx->src_nents + reqctx->aad_nents +
+				    MIN_CCM_SG) *  8);
+	transhdr_len += temp;
+	transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
+
+	if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE -
+				    reqctx->b0_len, transhdr_len, op_type)) {
 		atomic_inc(&adap->chcr_stats.fallback);
-		free_new_sg(reqctx->newdstsg);
-		reqctx->newdstsg = NULL;
+		chcr_aead_dma_unmap(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
+				    op_type);
 		return ERR_PTR(chcr_aead_fallback(req, op_type));
 	}
-
-	skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)),  flags);
+	skb = alloc_skb(SGE_MAX_WR_LEN,  flags);
 
 	if (!skb) {
 		error = -ENOMEM;
 		goto err;
 	}
 
-	skb_reserve(skb, sizeof(struct sge_opaque_hdr));
-
-	chcr_req = __skb_put_zero(skb, transhdr_len);
+	chcr_req = (struct chcr_wr *) __skb_put_zero(skb, transhdr_len);
 
-	fill_sec_cpl_for_aead(&chcr_req->sec_cpl, dst_size, req, op_type, ctx);
+	fill_sec_cpl_for_aead(&chcr_req->sec_cpl, dst_size, req, op_type);
 
 	chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
 	memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
@@ -2381,31 +2722,37 @@ static struct sk_buff *create_aead_ccm_wr(struct aead_request *req,
 					16), aeadctx->key, aeadctx->enckey_len);
 
 	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
+	ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
 	error = ccm_format_packet(req, aeadctx, sub_type, op_type);
 	if (error)
 		goto dstmap_fail;
 
-	sg_param.nents = reqctx->dst_nents;
-	sg_param.obsize = req->cryptlen + (op_type ? -authsize : authsize);
-	sg_param.qid = qid;
-	error = map_writesg_phys_cpl(&u_ctx->lldi.pdev->dev, phys_cpl,
-				 reqctx->dst, &sg_param);
-	if (error)
+	reqctx->b0_dma = dma_map_single(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev,
+					&reqctx->scratch_pad, reqctx->b0_len,
+					DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev,
+			      reqctx->b0_dma)) {
+		error = -ENOMEM;
 		goto dstmap_fail;
+	}
+
+	chcr_add_aead_dst_ent(req, phys_cpl, assoclen, op_type, qid);
+	chcr_add_aead_src_ent(req, ulptx, assoclen, op_type);
 
-	skb_set_transport_header(skb, transhdr_len);
-	frags = fill_aead_req_fields(skb, req, src, ivsize, aeadctx);
 	atomic_inc(&adap->chcr_stats.aead_rqst);
-	create_wreq(ctx, chcr_req, &req->base, skb, kctx_len, 0, 1,
-		    sizeof(struct cpl_rx_phys_dsgl) + dst_size, 0);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size +
+		kctx_len + (reqctx->imm ? (assoclen + IV + req->cryptlen +
+		reqctx->b0_len) : 0);
+	create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, 0,
+		    transhdr_len, temp, 0);
 	reqctx->skb = skb;
-	skb_get(skb);
+	reqctx->op = op_type;
+
 	return skb;
 dstmap_fail:
 	kfree_skb(skb);
 err:
-	free_new_sg(reqctx->newdstsg);
-	reqctx->newdstsg = NULL;
+	chcr_aead_dma_unmap(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req, op_type);
 	return ERR_PTR(error);
 }
 
@@ -2415,115 +2762,84 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
 				     unsigned short op_type)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
-	struct uld_ctx *u_ctx = ULD_CTX(ctx);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	struct chcr_aead_reqctx  *reqctx = aead_request_ctx(req);
 	struct sk_buff *skb = NULL;
 	struct chcr_wr *chcr_req;
 	struct cpl_rx_phys_dsgl *phys_cpl;
-	struct phys_sge_parm sg_param;
-	struct scatterlist *src;
-	unsigned int frags = 0, transhdr_len;
-	unsigned int ivsize = AES_BLOCK_SIZE;
-	unsigned int dst_size = 0, kctx_len, nents, assoclen = req->assoclen;
-	unsigned char tag_offset = 0;
+	struct ulptx_sgl *ulptx;
+	unsigned int transhdr_len, dnents = 0;
+	unsigned int dst_size = 0, temp = 0, kctx_len, assoclen = req->assoclen;
 	unsigned int authsize = crypto_aead_authsize(tfm);
-	int error = -EINVAL, src_nent;
+	int error = -EINVAL;
 	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ? GFP_KERNEL :
 		GFP_ATOMIC;
-	struct adapter *adap = padap(ctx->dev);
-
-	reqctx->newdstsg = NULL;
-	dst_size = assoclen + req->cryptlen + (op_type ? -authsize :
-						    authsize);
-	/* validate key size */
-	if (aeadctx->enckey_len == 0)
-		goto err;
+	struct adapter *adap = padap(a_ctx(tfm)->dev);
 
-	if (op_type && req->cryptlen < crypto_aead_authsize(tfm))
-		goto err;
-	src_nent = sg_nents_for_len(req->src, assoclen + req->cryptlen);
-	if (src_nent < 0)
-		goto err;
+	if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106)
+		assoclen = req->assoclen - 8;
 
-	src = scatterwalk_ffwd(reqctx->srcffwd, req->src, assoclen);
-	if (req->src != req->dst) {
-		error = chcr_copy_assoc(req, aeadctx);
+	reqctx->b0_dma = 0;
+	dst_size = assoclen + req->cryptlen + (op_type ? -authsize :  authsize);
+	error = chcr_aead_common_init(req, op_type);
 		if (error)
 			return	ERR_PTR(error);
-	}
-
-	if (dst_size && is_newsg(req->dst, &nents)) {
-		reqctx->newdstsg = alloc_new_sg(req->dst, nents);
-		if (IS_ERR(reqctx->newdstsg))
-			return ERR_CAST(reqctx->newdstsg);
-		reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd,
-					       reqctx->newdstsg, assoclen);
+	if (dst_size) {
+		dnents = sg_nents_xlen(req->dst, assoclen, CHCR_DST_SG_SIZE, 0);
+		dnents += sg_nents_xlen(req->dst,
+			req->cryptlen + (op_type ? -authsize : authsize),
+				CHCR_DST_SG_SIZE, req->assoclen);
+		dnents += MIN_GCM_SG; // For IV
 	} else {
-		if (req->src == req->dst)
-			reqctx->dst = src;
-		else
-			reqctx->dst = scatterwalk_ffwd(reqctx->dstffwd,
-						       req->dst, assoclen);
-	}
-
-	reqctx->dst_nents = sg_nents_for_len(reqctx->dst, req->cryptlen +
-					     (op_type ? -authsize : authsize));
-	if (reqctx->dst_nents < 0) {
-		pr_err("GCM:Invalid Destination sg entries\n");
-		error = -EINVAL;
-		goto err;
+		dnents = 0;
 	}
-
-
-	dst_size = get_space_for_phys_dsgl(reqctx->dst_nents);
+	dst_size = get_space_for_phys_dsgl(dnents);
 	kctx_len = ((DIV_ROUND_UP(aeadctx->enckey_len, 16)) << 4) +
 		AEAD_H_SIZE;
 	transhdr_len = CIPHER_TRANSHDR_SIZE(kctx_len, dst_size);
-	if (chcr_aead_need_fallback(req, src_nent + MIN_GCM_SG,
-			    T6_MAX_AAD_SIZE,
-			    transhdr_len + (sgl_len(src_nent + MIN_GCM_SG) * 8),
-			    op_type)) {
+	reqctx->imm = (transhdr_len + assoclen + IV + req->cryptlen) <=
+			SGE_MAX_WR_LEN;
+	temp = reqctx->imm ? (DIV_ROUND_UP((assoclen + IV +
+	req->cryptlen), 16) * 16) : (sgl_len(reqctx->src_nents +
+				reqctx->aad_nents + MIN_GCM_SG) * 8);
+	transhdr_len += temp;
+	transhdr_len = DIV_ROUND_UP(transhdr_len, 16) * 16;
+	if (chcr_aead_need_fallback(req, dnents, T6_MAX_AAD_SIZE,
+			    transhdr_len, op_type)) {
 		atomic_inc(&adap->chcr_stats.fallback);
-		free_new_sg(reqctx->newdstsg);
-		reqctx->newdstsg = NULL;
+		chcr_aead_dma_unmap(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req,
+				    op_type);
 		return ERR_PTR(chcr_aead_fallback(req, op_type));
 	}
-	skb = alloc_skb((transhdr_len + sizeof(struct sge_opaque_hdr)), flags);
+	skb = alloc_skb(SGE_MAX_WR_LEN, flags);
 	if (!skb) {
 		error = -ENOMEM;
 		goto err;
 	}
 
-	/* NIC driver is going to write the sge hdr. */
-	skb_reserve(skb, sizeof(struct sge_opaque_hdr));
-
 	chcr_req = __skb_put_zero(skb, transhdr_len);
 
-	if (get_aead_subtype(tfm) == CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106)
-		assoclen = req->assoclen - 8;
-
-	tag_offset = (op_type == CHCR_ENCRYPT_OP) ? 0 : authsize;
+	//Offset of tag from end
+	temp = (op_type == CHCR_ENCRYPT_OP) ? 0 : authsize;
 	chcr_req->sec_cpl.op_ivinsrtofst = FILL_SEC_CPL_OP_IVINSR(
-					ctx->dev->rx_channel_id, 2, (ivsize ?
-					(assoclen + 1) : 0));
+					a_ctx(tfm)->dev->rx_channel_id, 2,
+					(assoclen + 1));
 	chcr_req->sec_cpl.pldlen =
-		htonl(assoclen + ivsize + req->cryptlen);
+		htonl(assoclen + IV + req->cryptlen);
 	chcr_req->sec_cpl.aadstart_cipherstop_hi = FILL_SEC_CPL_CIPHERSTOP_HI(
 					assoclen ? 1 : 0, assoclen,
-					assoclen + ivsize + 1, 0);
+					assoclen + IV + 1, 0);
 		chcr_req->sec_cpl.cipherstop_lo_authinsert =
-			FILL_SEC_CPL_AUTHINSERT(0, assoclen + ivsize + 1,
-						tag_offset, tag_offset);
+			FILL_SEC_CPL_AUTHINSERT(0, assoclen + IV + 1,
+						temp, temp);
 		chcr_req->sec_cpl.seqno_numivs =
 			FILL_SEC_CPL_SCMD0_SEQNO(op_type, (op_type ==
 					CHCR_ENCRYPT_OP) ? 1 : 0,
 					CHCR_SCMD_CIPHER_MODE_AES_GCM,
 					CHCR_SCMD_AUTH_MODE_GHASH,
-					aeadctx->hmac_ctrl, ivsize >> 1);
+					aeadctx->hmac_ctrl, IV >> 1);
 	chcr_req->sec_cpl.ivgen_hdrlen =  FILL_SEC_CPL_IVGEN_HDRLEN(0, 0, 1,
-					0, 1, dst_size);
+					0, 0, dst_size);
 	chcr_req->key_ctx.ctx_hdr = aeadctx->key_ctx_hdr;
 	memcpy(chcr_req->key_ctx.key, aeadctx->key, aeadctx->enckey_len);
 	memcpy(chcr_req->key_ctx.key + (DIV_ROUND_UP(aeadctx->enckey_len, 16) *
@@ -2534,39 +2850,28 @@ static struct sk_buff *create_gcm_wr(struct aead_request *req,
 	if (get_aead_subtype(tfm) ==
 	    CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106) {
 		memcpy(reqctx->iv, aeadctx->salt, 4);
-		memcpy(reqctx->iv + 4, req->iv, 8);
+		memcpy(reqctx->iv + 4, req->iv, GCM_RFC4106_IV_SIZE);
 	} else {
-		memcpy(reqctx->iv, req->iv, 12);
+		memcpy(reqctx->iv, req->iv, GCM_AES_IV_SIZE);
 	}
 	*((unsigned int *)(reqctx->iv + 12)) = htonl(0x01);
 
 	phys_cpl = (struct cpl_rx_phys_dsgl *)((u8 *)(chcr_req + 1) + kctx_len);
-	sg_param.nents = reqctx->dst_nents;
-	sg_param.obsize = req->cryptlen + (op_type ? -authsize : authsize);
-	sg_param.qid = qid;
-	error = map_writesg_phys_cpl(&u_ctx->lldi.pdev->dev, phys_cpl,
-					  reqctx->dst, &sg_param);
-	if (error)
-		goto dstmap_fail;
+	ulptx = (struct ulptx_sgl *)((u8 *)(phys_cpl + 1) + dst_size);
 
-	skb_set_transport_header(skb, transhdr_len);
-	write_sg_to_skb(skb, &frags, req->src, assoclen);
-	write_buffer_to_skb(skb, &frags, reqctx->iv, ivsize);
-	write_sg_to_skb(skb, &frags, src, req->cryptlen);
+	chcr_add_aead_dst_ent(req, phys_cpl, assoclen, op_type, qid);
+	chcr_add_aead_src_ent(req, ulptx, assoclen, op_type);
 	atomic_inc(&adap->chcr_stats.aead_rqst);
-	create_wreq(ctx, chcr_req, &req->base, skb, kctx_len, size, 1,
-			sizeof(struct cpl_rx_phys_dsgl) + dst_size,
-			reqctx->verify);
+	temp = sizeof(struct cpl_rx_phys_dsgl) + dst_size +
+		kctx_len + (reqctx->imm ? (assoclen + IV + req->cryptlen) : 0);
+	create_wreq(a_ctx(tfm), chcr_req, &req->base, reqctx->imm, size,
+		    transhdr_len, temp, reqctx->verify);
 	reqctx->skb = skb;
-	skb_get(skb);
+	reqctx->op = op_type;
 	return skb;
 
-dstmap_fail:
-	/* ivmap_fail: */
-	kfree_skb(skb);
 err:
-	free_new_sg(reqctx->newdstsg);
-	reqctx->newdstsg = NULL;
+	chcr_aead_dma_unmap(&ULD_CTX(a_ctx(tfm))->lldi.pdev->dev, req, op_type);
 	return ERR_PTR(error);
 }
 
@@ -2574,8 +2879,7 @@ err:
 
 static int chcr_aead_cra_init(struct crypto_aead *tfm)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	struct aead_alg *alg = crypto_aead_alg(tfm);
 
 	aeadctx->sw_cipher = crypto_alloc_aead(alg->base.cra_name, 0,
@@ -2586,25 +2890,20 @@ static int chcr_aead_cra_init(struct crypto_aead *tfm)
 	crypto_aead_set_reqsize(tfm, max(sizeof(struct chcr_aead_reqctx),
 				 sizeof(struct aead_request) +
 				 crypto_aead_reqsize(aeadctx->sw_cipher)));
-	aeadctx->null = crypto_get_default_null_skcipher();
-	if (IS_ERR(aeadctx->null))
-		return PTR_ERR(aeadctx->null);
-	return chcr_device_init(ctx);
+	return chcr_device_init(a_ctx(tfm));
 }
 
 static void chcr_aead_cra_exit(struct crypto_aead *tfm)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 
-	crypto_put_default_null_skcipher();
 	crypto_free_aead(aeadctx->sw_cipher);
 }
 
 static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm,
 					unsigned int authsize)
 {
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 
 	aeadctx->hmac_ctrl = CHCR_SCMD_HMAC_CTRL_NOP;
 	aeadctx->mayverify = VERIFY_HW;
@@ -2613,7 +2912,7 @@ static int chcr_authenc_null_setauthsize(struct crypto_aead *tfm,
 static int chcr_authenc_setauthsize(struct crypto_aead *tfm,
 				    unsigned int authsize)
 {
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	u32 maxauth = crypto_aead_maxauthsize(tfm);
 
 	/*SHA1 authsize in ipsec is 12 instead of 10 i.e maxauthsize / 2 is not
@@ -2651,7 +2950,7 @@ static int chcr_authenc_setauthsize(struct crypto_aead *tfm,
 
 static int chcr_gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
 {
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 
 	switch (authsize) {
 	case ICV_4:
@@ -2691,7 +2990,7 @@ static int chcr_gcm_setauthsize(struct crypto_aead *tfm, unsigned int authsize)
 static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm,
 					  unsigned int authsize)
 {
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 
 	switch (authsize) {
 	case ICV_8:
@@ -2717,7 +3016,7 @@ static int chcr_4106_4309_setauthsize(struct crypto_aead *tfm,
 static int chcr_ccm_setauthsize(struct crypto_aead *tfm,
 				unsigned int authsize)
 {
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 
 	switch (authsize) {
 	case ICV_4:
@@ -2760,8 +3059,7 @@ static int chcr_ccm_common_setkey(struct crypto_aead *aead,
 				const u8 *key,
 				unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(aead);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
 	unsigned char ck_size, mk_size;
 	int key_ctx_size = 0;
 
@@ -2794,8 +3092,7 @@ static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
 				const u8 *key,
 				unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(aead);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
 	int error;
 
 	crypto_aead_clear_flags(aeadctx->sw_cipher, CRYPTO_TFM_REQ_MASK);
@@ -2813,8 +3110,7 @@ static int chcr_aead_ccm_setkey(struct crypto_aead *aead,
 static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
 				    unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(aead);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
 	int error;
 
 	if (keylen < 3) {
@@ -2840,8 +3136,7 @@ static int chcr_aead_rfc4309_setkey(struct crypto_aead *aead, const u8 *key,
 static int chcr_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 			   unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(aead);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(aead));
 	struct chcr_gcm_ctx *gctx = GCM_CTX(aeadctx);
 	struct crypto_cipher *cipher;
 	unsigned int ck_size;
@@ -2913,8 +3208,7 @@ out:
 static int chcr_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
 				   unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(authenc);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc));
 	struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
 	/* it contains auth and cipher key both*/
 	struct crypto_authenc_keys keys;
@@ -3034,8 +3328,7 @@ out:
 static int chcr_aead_digest_null_setkey(struct crypto_aead *authenc,
 					const u8 *key, unsigned int keylen)
 {
-	struct chcr_context *ctx = crypto_aead_ctx(authenc);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(ctx);
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(authenc));
 	struct chcr_authenc_ctx *actx = AUTHENC_CTX(aeadctx);
 	struct crypto_authenc_keys keys;
 	int err;
@@ -3107,7 +3400,7 @@ static int chcr_aead_encrypt(struct aead_request *req)
 static int chcr_aead_decrypt(struct aead_request *req)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_aead_ctx *aeadctx = AEAD_CTX(crypto_aead_ctx(tfm));
+	struct chcr_aead_ctx *aeadctx = AEAD_CTX(a_ctx(tfm));
 	struct chcr_aead_reqctx *reqctx = aead_request_ctx(req);
 	int size;
 
@@ -3140,30 +3433,29 @@ static int chcr_aead_op(struct aead_request *req,
 			  create_wr_t create_wr_fn)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
-	struct chcr_context *ctx = crypto_aead_ctx(tfm);
 	struct uld_ctx *u_ctx;
 	struct sk_buff *skb;
 
-	if (!ctx->dev) {
+	if (!a_ctx(tfm)->dev) {
 		pr_err("chcr : %s : No crypto device.\n", __func__);
 		return -ENXIO;
 	}
-	u_ctx = ULD_CTX(ctx);
+	u_ctx = ULD_CTX(a_ctx(tfm));
 	if (cxgb4_is_crypto_q_full(u_ctx->lldi.ports[0],
-				   ctx->tx_qidx)) {
+				   a_ctx(tfm)->tx_qidx)) {
 		if (!(req->base.flags & CRYPTO_TFM_REQ_MAY_BACKLOG))
 			return -EBUSY;
 	}
 
 	/* Form a WR from req */
-	skb = create_wr_fn(req, u_ctx->lldi.rxq_ids[ctx->rx_qidx], size,
+	skb = create_wr_fn(req, u_ctx->lldi.rxq_ids[a_ctx(tfm)->rx_qidx], size,
 			   op_type);
 
 	if (IS_ERR(skb) || !skb)
 		return PTR_ERR(skb);
 
 	skb->dev = u_ctx->lldi.ports[0];
-	set_wr_txq(skb, CPL_PRIORITY_DATA, ctx->tx_qidx);
+	set_wr_txq(skb, CPL_PRIORITY_DATA, a_ctx(tfm)->tx_qidx);
 	chcr_send_wr(skb);
 	return -EINPROGRESS;
 }
@@ -3385,7 +3677,7 @@ static struct chcr_alg_template driver_algs[] = {
 						sizeof(struct chcr_aead_ctx) +
 						sizeof(struct chcr_gcm_ctx),
 			},
-			.ivsize = 12,
+			.ivsize = GCM_AES_IV_SIZE,
 			.maxauthsize = GHASH_DIGEST_SIZE,
 			.setkey = chcr_gcm_setkey,
 			.setauthsize = chcr_gcm_setauthsize,
@@ -3405,7 +3697,7 @@ static struct chcr_alg_template driver_algs[] = {
 						sizeof(struct chcr_gcm_ctx),
 
 			},
-			.ivsize = 8,
+			.ivsize = GCM_RFC4106_IV_SIZE,
 			.maxauthsize	= GHASH_DIGEST_SIZE,
 			.setkey = chcr_gcm_setkey,
 			.setauthsize	= chcr_4106_4309_setauthsize,
diff --git a/drivers/crypto/chelsio/chcr_algo.h b/drivers/crypto/chelsio/chcr_algo.h
index 583008de51a3..96c9335ee728 100644
--- a/drivers/crypto/chelsio/chcr_algo.h
+++ b/drivers/crypto/chelsio/chcr_algo.h
@@ -176,21 +176,21 @@
 		      KEY_CONTEXT_SALT_PRESENT_V(1) | \
 		      KEY_CONTEXT_CTX_LEN_V((ctx_len)))
 
-#define FILL_WR_OP_CCTX_SIZE(len, ctx_len) \
+#define FILL_WR_OP_CCTX_SIZE \
 		htonl( \
 			FW_CRYPTO_LOOKASIDE_WR_OPCODE_V( \
 			FW_CRYPTO_LOOKASIDE_WR) | \
 			FW_CRYPTO_LOOKASIDE_WR_COMPL_V(0) | \
-			FW_CRYPTO_LOOKASIDE_WR_IMM_LEN_V((len)) | \
-			FW_CRYPTO_LOOKASIDE_WR_CCTX_LOC_V(1) | \
-			FW_CRYPTO_LOOKASIDE_WR_CCTX_SIZE_V((ctx_len)))
+			FW_CRYPTO_LOOKASIDE_WR_IMM_LEN_V((0)) | \
+			FW_CRYPTO_LOOKASIDE_WR_CCTX_LOC_V(0) | \
+			FW_CRYPTO_LOOKASIDE_WR_CCTX_SIZE_V(0))
 
-#define FILL_WR_RX_Q_ID(cid, qid, wr_iv, lcb, fid) \
+#define FILL_WR_RX_Q_ID(cid, qid, lcb, fid) \
 		htonl( \
 			FW_CRYPTO_LOOKASIDE_WR_RX_CHID_V((cid)) | \
 			FW_CRYPTO_LOOKASIDE_WR_RX_Q_ID_V((qid)) | \
 			FW_CRYPTO_LOOKASIDE_WR_LCB_V((lcb)) | \
-			FW_CRYPTO_LOOKASIDE_WR_IV_V((wr_iv)) | \
+			FW_CRYPTO_LOOKASIDE_WR_IV_V((IV_NOP)) | \
 			FW_CRYPTO_LOOKASIDE_WR_FQIDX_V(fid))
 
 #define FILL_ULPTX_CMD_DEST(cid, qid) \
@@ -214,27 +214,22 @@
 					   calc_tx_flits_ofld(skb) * 8), 16)))
 
 #define FILL_CMD_MORE(immdatalen) htonl(ULPTX_CMD_V(ULP_TX_SC_IMM) |\
-					ULP_TX_SC_MORE_V((immdatalen) ? 0 : 1))
-
+					ULP_TX_SC_MORE_V((immdatalen)))
 #define MAX_NK 8
-#define CRYPTO_MAX_IMM_TX_PKT_LEN 256
-#define MAX_WR_SIZE			512
 #define ROUND_16(bytes)		((bytes) & 0xFFFFFFF0)
 #define MAX_DSGL_ENT			32
-#define MAX_DIGEST_SKB_SGE	(MAX_SKB_FRAGS - 2)
 #define MIN_CIPHER_SG			1 /* IV */
-#define MIN_AUTH_SG			2 /*IV + AAD*/
-#define MIN_GCM_SG			2 /* IV + AAD*/
+#define MIN_AUTH_SG			1 /* IV */
+#define MIN_GCM_SG			1 /* IV */
 #define MIN_DIGEST_SG			1 /*Partial Buffer*/
-#define MIN_CCM_SG			3 /*IV+AAD+B0*/
+#define MIN_CCM_SG			2 /*IV+B0*/
 #define SPACE_LEFT(len) \
-	((MAX_WR_SIZE - WR_MIN_LEN - (len)))
+	((SGE_MAX_WR_LEN - WR_MIN_LEN - (len)))
 
-unsigned int sgl_ent_len[] = {0, 0, 16, 24, 40,
-				48, 64, 72, 88,
-				96, 112, 120, 136,
-				144, 160, 168, 184,
-				192};
+unsigned int sgl_ent_len[] = {0, 0, 16, 24, 40, 48, 64, 72, 88,
+				96, 112, 120, 136, 144, 160, 168, 184,
+				192, 208, 216, 232, 240, 256, 264, 280,
+				288, 304, 312, 328, 336, 352, 360, 376};
 unsigned int dsgl_ent_len[] = {0, 32, 32, 48, 48, 64, 64, 80, 80,
 				112, 112, 128, 128, 144, 144, 160, 160,
 				192, 192, 208, 208, 224, 224, 240, 240,
@@ -258,10 +253,8 @@ struct hash_wr_param {
 
 struct cipher_wr_param {
 	struct ablkcipher_request *req;
-	struct scatterlist *srcsg;
 	char *iv;
 	int bytes;
-	short int snent;
 	unsigned short qid;
 };
 enum {
@@ -299,31 +292,11 @@ enum {
 	ICV_16 = 16
 };
 
-struct hash_op_params {
-	unsigned char mk_size;
-	unsigned char pad_align;
-	unsigned char auth_mode;
-	char hash_name[MAX_HASH_NAME];
-	unsigned short block_size;
-	unsigned short word_size;
-	unsigned short ipad_size;
-};
-
 struct phys_sge_pairs {
 	__be16 len[8];
 	__be64 addr[8];
 };
 
-struct phys_sge_parm {
-	unsigned int nents;
-	unsigned int obsize;
-	unsigned short qid;
-};
-
-struct crypto_result {
-	struct completion completion;
-	int err;
-};
 
 static const u32 sha1_init[SHA1_DIGEST_SIZE / 4] = {
 		SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4,
diff --git a/drivers/crypto/chelsio/chcr_core.c b/drivers/crypto/chelsio/chcr_core.c
index b6dd9cbe815f..f5a2624081dc 100644
--- a/drivers/crypto/chelsio/chcr_core.c
+++ b/drivers/crypto/chelsio/chcr_core.c
@@ -154,15 +154,15 @@ static void *chcr_uld_add(const struct cxgb4_lld_info *lld)
 	struct uld_ctx *u_ctx;
 
 	/* Create the device and add it in the device list */
+	if (!(lld->ulp_crypto & ULP_CRYPTO_LOOKASIDE))
+		return ERR_PTR(-EOPNOTSUPP);
+
+	/* Create the device and add it in the device list */
 	u_ctx = kzalloc(sizeof(*u_ctx), GFP_KERNEL);
 	if (!u_ctx) {
 		u_ctx = ERR_PTR(-ENOMEM);
 		goto out;
 	}
-	if (!(lld->ulp_crypto & ULP_CRYPTO_LOOKASIDE)) {
-		u_ctx = ERR_PTR(-ENOMEM);
-		goto out;
-	}
 	u_ctx->lldi = *lld;
 out:
 	return u_ctx;
@@ -224,7 +224,7 @@ static int chcr_uld_state_change(void *handle, enum cxgb4_state state)
 static int __init chcr_crypto_init(void)
 {
 	if (cxgb4_register_uld(CXGB4_ULD_CRYPTO, &chcr_uld_info))
-		pr_err("ULD register fail: No chcr crypto support in cxgb4");
+		pr_err("ULD register fail: No chcr crypto support in cxgb4\n");
 
 	return 0;
 }
diff --git a/drivers/crypto/chelsio/chcr_core.h b/drivers/crypto/chelsio/chcr_core.h
index c9a19b2a1e9f..94e7412f6164 100644
--- a/drivers/crypto/chelsio/chcr_core.h
+++ b/drivers/crypto/chelsio/chcr_core.h
@@ -89,7 +89,7 @@ struct uld_ctx {
 	struct chcr_dev *dev;
 };
 
-struct uld_ctx * assign_chcr_device(void);
+struct uld_ctx *assign_chcr_device(void);
 int chcr_send_wr(struct sk_buff *skb);
 int start_crypto(void);
 int stop_crypto(void);
diff --git a/drivers/crypto/chelsio/chcr_crypto.h b/drivers/crypto/chelsio/chcr_crypto.h
index 30af1ee17b87..94a87e3ad9bc 100644
--- a/drivers/crypto/chelsio/chcr_crypto.h
+++ b/drivers/crypto/chelsio/chcr_crypto.h
@@ -149,9 +149,23 @@
 
 #define CHCR_HASH_MAX_BLOCK_SIZE_64  64
 #define CHCR_HASH_MAX_BLOCK_SIZE_128 128
-#define CHCR_SG_SIZE 2048
+#define CHCR_SRC_SG_SIZE (0x10000 - sizeof(int))
+#define CHCR_DST_SG_SIZE 2048
 
-/* Aligned to 128 bit boundary */
+static inline struct chcr_context *a_ctx(struct crypto_aead *tfm)
+{
+	return crypto_aead_ctx(tfm);
+}
+
+static inline struct chcr_context *c_ctx(struct crypto_ablkcipher *tfm)
+{
+	return crypto_ablkcipher_ctx(tfm);
+}
+
+static inline struct chcr_context *h_ctx(struct crypto_ahash *tfm)
+{
+	return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+}
 
 struct ablk_ctx {
 	struct crypto_skcipher *sw_cipher;
@@ -165,16 +179,39 @@ struct ablk_ctx {
 };
 struct chcr_aead_reqctx {
 	struct	sk_buff	*skb;
-	struct scatterlist *dst;
-	struct scatterlist *newdstsg;
-	struct scatterlist srcffwd[2];
-	struct scatterlist dstffwd[2];
+	dma_addr_t iv_dma;
+	dma_addr_t b0_dma;
+	unsigned int b0_len;
+	unsigned int op;
+	short int aad_nents;
+	short int src_nents;
 	short int dst_nents;
+	u16 imm;
 	u16 verify;
 	u8 iv[CHCR_MAX_CRYPTO_IV_LEN];
 	unsigned char scratch_pad[MAX_SCRATCH_PAD_SIZE];
 };
 
+struct ulptx_walk {
+	struct ulptx_sgl *sgl;
+	unsigned int nents;
+	unsigned int pair_idx;
+	unsigned int last_sg_len;
+	struct scatterlist *last_sg;
+	struct ulptx_sge_pair *pair;
+
+};
+
+struct dsgl_walk {
+	unsigned int nents;
+	unsigned int last_sg_len;
+	struct scatterlist *last_sg;
+	struct cpl_rx_phys_dsgl *dsgl;
+	struct phys_sge_pairs *to;
+};
+
+
+
 struct chcr_gcm_ctx {
 	u8 ghash_h[AEAD_H_SIZE];
 };
@@ -195,7 +232,6 @@ struct __aead_ctx {
 struct chcr_aead_ctx {
 	__be32 key_ctx_hdr;
 	unsigned int enckey_len;
-	struct crypto_skcipher *null;
 	struct crypto_aead *sw_cipher;
 	u8 salt[MAX_SALT];
 	u8 key[CHCR_AES_MAX_KEY_LEN];
@@ -231,8 +267,11 @@ struct chcr_ahash_req_ctx {
 	u8 bfr2[CHCR_HASH_MAX_BLOCK_SIZE_128];
 	u8 *reqbfr;
 	u8 *skbfr;
+	dma_addr_t dma_addr;
+	u32 dma_len;
 	u8 reqlen;
-	/* DMA the partial hash in it */
+	u8 imm;
+	u8 is_sg_map;
 	u8 partial_hash[CHCR_HASH_MAX_DIGEST_SIZE];
 	u64 data_len;  /* Data len till time */
 	/* SKB which is being sent to the hardware for processing */
@@ -241,14 +280,15 @@ struct chcr_ahash_req_ctx {
 
 struct chcr_blkcipher_req_ctx {
 	struct sk_buff *skb;
-	struct scatterlist srcffwd[2];
-	struct scatterlist dstffwd[2];
 	struct scatterlist *dstsg;
-	struct scatterlist *dst;
-	struct scatterlist *newdstsg;
 	unsigned int processed;
+	unsigned int last_req_len;
+	struct scatterlist *srcsg;
+	unsigned int src_ofst;
+	unsigned int dst_ofst;
 	unsigned int op;
-	short int dst_nents;
+	dma_addr_t iv_dma;
+	u16 imm;
 	u8 iv[CHCR_MAX_CRYPTO_IV_LEN];
 };
 
@@ -262,24 +302,6 @@ struct chcr_alg_template {
 	} alg;
 };
 
-struct chcr_req_ctx {
-	union {
-		struct ahash_request *ahash_req;
-		struct aead_request *aead_req;
-		struct ablkcipher_request *ablk_req;
-	} req;
-	union {
-		struct chcr_ahash_req_ctx *ahash_ctx;
-		struct chcr_aead_reqctx *reqctx;
-		struct chcr_blkcipher_req_ctx *ablk_ctx;
-	} ctx;
-};
-
-struct sge_opaque_hdr {
-	void *dev;
-	dma_addr_t addr[MAX_SKB_FRAGS + 1];
-};
-
 typedef struct sk_buff *(*create_wr_t)(struct aead_request *req,
 				       unsigned short qid,
 				       int size,
@@ -290,10 +312,39 @@ static int chcr_aead_op(struct aead_request *req_base,
 			  int size,
 			  create_wr_t create_wr_fn);
 static inline int get_aead_subtype(struct crypto_aead *aead);
-static int is_newsg(struct scatterlist *sgl, unsigned int *newents);
-static struct scatterlist *alloc_new_sg(struct scatterlist *sgl,
-					unsigned int nents);
-static inline void free_new_sg(struct scatterlist *sgl);
 static int chcr_handle_cipher_resp(struct ablkcipher_request *req,
 				   unsigned char *input, int err);
+static void chcr_verify_tag(struct aead_request *req, u8 *input, int *err);
+static int chcr_aead_dma_map(struct device *dev, struct aead_request *req,
+			     unsigned short op_type);
+static void chcr_aead_dma_unmap(struct device *dev, struct aead_request
+				*req, unsigned short op_type);
+static inline void chcr_add_aead_dst_ent(struct aead_request *req,
+				    struct cpl_rx_phys_dsgl *phys_cpl,
+				    unsigned int assoclen,
+				    unsigned short op_type,
+				    unsigned short qid);
+static inline void chcr_add_aead_src_ent(struct aead_request *req,
+				    struct ulptx_sgl *ulptx,
+				    unsigned int assoclen,
+				    unsigned short op_type);
+static inline void chcr_add_cipher_src_ent(struct ablkcipher_request *req,
+					   struct ulptx_sgl *ulptx,
+					   struct  cipher_wr_param *wrparam);
+static int chcr_cipher_dma_map(struct device *dev,
+			       struct ablkcipher_request *req);
+static void chcr_cipher_dma_unmap(struct device *dev,
+				  struct ablkcipher_request *req);
+static inline void chcr_add_cipher_dst_ent(struct ablkcipher_request *req,
+					   struct cpl_rx_phys_dsgl *phys_cpl,
+					   struct  cipher_wr_param *wrparam,
+					   unsigned short qid);
+int sg_nents_len_skip(struct scatterlist *sg, u64 len, u64 skip);
+static inline void chcr_add_hash_src_ent(struct ahash_request *req,
+					 struct ulptx_sgl *ulptx,
+					 struct hash_wr_param *param);
+static inline int chcr_hash_dma_map(struct device *dev,
+				    struct ahash_request *req);
+static inline void chcr_hash_dma_unmap(struct device *dev,
+				       struct ahash_request *req);
 #endif /* __CHCR_CRYPTO_H__ */
diff --git a/drivers/crypto/inside-secure/safexcel_cipher.c b/drivers/crypto/inside-secure/safexcel_cipher.c
index d2207ac5ba19..5438552bc6d7 100644
--- a/drivers/crypto/inside-secure/safexcel_cipher.c
+++ b/drivers/crypto/inside-secure/safexcel_cipher.c
@@ -386,7 +386,7 @@ static int safexcel_cipher_exit_inv(struct crypto_tfm *tfm)
 	struct safexcel_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
 	struct safexcel_crypto_priv *priv = ctx->priv;
 	struct skcipher_request req;
-	struct safexcel_inv_result result = { 0 };
+	struct safexcel_inv_result result = {};
 	int ring = ctx->base.ring;
 
 	memset(&req, 0, sizeof(struct skcipher_request));
diff --git a/drivers/crypto/inside-secure/safexcel_hash.c b/drivers/crypto/inside-secure/safexcel_hash.c
index 3f819399cd95..74feb6227101 100644
--- a/drivers/crypto/inside-secure/safexcel_hash.c
+++ b/drivers/crypto/inside-secure/safexcel_hash.c
@@ -308,10 +308,8 @@ unmap_cache:
 		ctx->base.cache_sz = 0;
 	}
 free_cache:
-	if (ctx->base.cache) {
-		kfree(ctx->base.cache);
-		ctx->base.cache = NULL;
-	}
+	kfree(ctx->base.cache);
+	ctx->base.cache = NULL;
 
 unlock:
 	spin_unlock_bh(&priv->ring[ring].egress_lock);
@@ -419,7 +417,7 @@ static int safexcel_ahash_exit_inv(struct crypto_tfm *tfm)
 	struct safexcel_ahash_ctx *ctx = crypto_tfm_ctx(tfm);
 	struct safexcel_crypto_priv *priv = ctx->priv;
 	struct ahash_request req;
-	struct safexcel_inv_result result = { 0 };
+	struct safexcel_inv_result result = {};
 	int ring = ctx->base.ring;
 
 	memset(&req, 0, sizeof(struct ahash_request));
diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index dadc4a808df5..8705b28eb02c 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -534,7 +534,6 @@ static void release_ixp_crypto(struct device *dev)
 			NPE_QLEN_TOTAL * sizeof( struct crypt_ctl),
 			crypt_virt, crypt_phys);
 	}
-	return;
 }
 
 static void reset_sa_dir(struct ix_sa_dir *dir)
diff --git a/drivers/crypto/marvell/cesa.c b/drivers/crypto/marvell/cesa.c
index 6e7a5c77a00a..293832488cc9 100644
--- a/drivers/crypto/marvell/cesa.c
+++ b/drivers/crypto/marvell/cesa.c
@@ -34,10 +34,6 @@
 /* Limit of the crypto queue before reaching the backlog */
 #define CESA_CRYPTO_DEFAULT_MAX_QLEN 128
 
-static int allhwsupport = !IS_ENABLED(CONFIG_CRYPTO_DEV_MV_CESA);
-module_param_named(allhwsupport, allhwsupport, int, 0444);
-MODULE_PARM_DESC(allhwsupport, "Enable support for all hardware (even it if overlaps with the mv_cesa driver)");
-
 struct mv_cesa_dev *cesa_dev;
 
 struct crypto_async_request *
@@ -76,8 +72,6 @@ static void mv_cesa_rearm_engine(struct mv_cesa_engine *engine)
 
 	ctx = crypto_tfm_ctx(req->tfm);
 	ctx->ops->step(req);
-
-	return;
 }
 
 static int mv_cesa_std_process(struct mv_cesa_engine *engine, u32 status)
@@ -183,8 +177,7 @@ int mv_cesa_queue_req(struct crypto_async_request *req,
 	spin_lock_bh(&engine->lock);
 	ret = crypto_enqueue_request(&engine->queue, req);
 	if ((mv_cesa_req_get_type(creq) == CESA_DMA_REQ) &&
-	    (ret == -EINPROGRESS ||
-	    (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)))
+	    (ret == -EINPROGRESS || ret == -EBUSY))
 		mv_cesa_tdma_chain(engine, creq);
 	spin_unlock_bh(&engine->lock);
 
@@ -202,7 +195,7 @@ static int mv_cesa_add_algs(struct mv_cesa_dev *cesa)
 	int i, j;
 
 	for (i = 0; i < cesa->caps->ncipher_algs; i++) {
-		ret = crypto_register_alg(cesa->caps->cipher_algs[i]);
+		ret = crypto_register_skcipher(cesa->caps->cipher_algs[i]);
 		if (ret)
 			goto err_unregister_crypto;
 	}
@@ -222,7 +215,7 @@ err_unregister_ahash:
 
 err_unregister_crypto:
 	for (j = 0; j < i; j++)
-		crypto_unregister_alg(cesa->caps->cipher_algs[j]);
+		crypto_unregister_skcipher(cesa->caps->cipher_algs[j]);
 
 	return ret;
 }
@@ -235,10 +228,10 @@ static void mv_cesa_remove_algs(struct mv_cesa_dev *cesa)
 		crypto_unregister_ahash(cesa->caps->ahash_algs[i]);
 
 	for (i = 0; i < cesa->caps->ncipher_algs; i++)
-		crypto_unregister_alg(cesa->caps->cipher_algs[i]);
+		crypto_unregister_skcipher(cesa->caps->cipher_algs[i]);
 }
 
-static struct crypto_alg *orion_cipher_algs[] = {
+static struct skcipher_alg *orion_cipher_algs[] = {
 	&mv_cesa_ecb_des_alg,
 	&mv_cesa_cbc_des_alg,
 	&mv_cesa_ecb_des3_ede_alg,
@@ -254,7 +247,7 @@ static struct ahash_alg *orion_ahash_algs[] = {
 	&mv_ahmac_sha1_alg,
 };
 
-static struct crypto_alg *armada_370_cipher_algs[] = {
+static struct skcipher_alg *armada_370_cipher_algs[] = {
 	&mv_cesa_ecb_des_alg,
 	&mv_cesa_cbc_des_alg,
 	&mv_cesa_ecb_des3_ede_alg,
@@ -459,9 +452,6 @@ static int mv_cesa_probe(struct platform_device *pdev)
 		caps = match->data;
 	}
 
-	if ((caps == &orion_caps || caps == &kirkwood_caps) && !allhwsupport)
-		return -ENOTSUPP;
-
 	cesa = devm_kzalloc(dev, sizeof(*cesa), GFP_KERNEL);
 	if (!cesa)
 		return -ENOMEM;
@@ -599,9 +589,16 @@ static int mv_cesa_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct platform_device_id mv_cesa_plat_id_table[] = {
+	{ .name = "mv_crypto" },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(platform, mv_cesa_plat_id_table);
+
 static struct platform_driver marvell_cesa = {
 	.probe		= mv_cesa_probe,
 	.remove		= mv_cesa_remove,
+	.id_table	= mv_cesa_plat_id_table,
 	.driver		= {
 		.name	= "marvell-cesa",
 		.of_match_table = mv_cesa_of_match_table,
diff --git a/drivers/crypto/marvell/cesa.h b/drivers/crypto/marvell/cesa.h
index b7872f62f674..d63a6ee905c9 100644
--- a/drivers/crypto/marvell/cesa.h
+++ b/drivers/crypto/marvell/cesa.h
@@ -1,9 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MARVELL_CESA_H__
 #define __MARVELL_CESA_H__
 
 #include <crypto/algapi.h>
 #include <crypto/hash.h>
 #include <crypto/internal/hash.h>
+#include <crypto/internal/skcipher.h>
 
 #include <linux/crypto.h>
 #include <linux/dmapool.h>
@@ -372,7 +374,7 @@ struct mv_cesa_engine;
 struct mv_cesa_caps {
 	int nengines;
 	bool has_tdma;
-	struct crypto_alg **cipher_algs;
+	struct skcipher_alg **cipher_algs;
 	int ncipher_algs;
 	struct ahash_alg **ahash_algs;
 	int nahash_algs;
@@ -538,12 +540,12 @@ struct mv_cesa_sg_std_iter {
 };
 
 /**
- * struct mv_cesa_ablkcipher_std_req - cipher standard request
+ * struct mv_cesa_skcipher_std_req - cipher standard request
  * @op:		operation context
  * @offset:	current operation offset
  * @size:	size of the crypto operation
  */
-struct mv_cesa_ablkcipher_std_req {
+struct mv_cesa_skcipher_std_req {
 	struct mv_cesa_op_ctx op;
 	unsigned int offset;
 	unsigned int size;
@@ -551,14 +553,14 @@ struct mv_cesa_ablkcipher_std_req {
 };
 
 /**
- * struct mv_cesa_ablkcipher_req - cipher request
+ * struct mv_cesa_skcipher_req - cipher request
  * @req:	type specific request information
  * @src_nents:	number of entries in the src sg list
  * @dst_nents:	number of entries in the dest sg list
  */
-struct mv_cesa_ablkcipher_req {
+struct mv_cesa_skcipher_req {
 	struct mv_cesa_req base;
-	struct mv_cesa_ablkcipher_std_req std;
+	struct mv_cesa_skcipher_std_req std;
 	int src_nents;
 	int dst_nents;
 };
@@ -763,7 +765,7 @@ static inline int mv_cesa_req_needs_cleanup(struct crypto_async_request *req,
 	 * the backlog and will be processed later. There's no need to
 	 * clean it up.
 	 */
-	if (ret == -EBUSY && req->flags & CRYPTO_TFM_REQ_MAY_BACKLOG)
+	if (ret == -EBUSY)
 		return false;
 
 	/* Request wasn't queued, we need to clean it up */
@@ -868,11 +870,11 @@ extern struct ahash_alg mv_ahmac_md5_alg;
 extern struct ahash_alg mv_ahmac_sha1_alg;
 extern struct ahash_alg mv_ahmac_sha256_alg;
 
-extern struct crypto_alg mv_cesa_ecb_des_alg;
-extern struct crypto_alg mv_cesa_cbc_des_alg;
-extern struct crypto_alg mv_cesa_ecb_des3_ede_alg;
-extern struct crypto_alg mv_cesa_cbc_des3_ede_alg;
-extern struct crypto_alg mv_cesa_ecb_aes_alg;
-extern struct crypto_alg mv_cesa_cbc_aes_alg;
+extern struct skcipher_alg mv_cesa_ecb_des_alg;
+extern struct skcipher_alg mv_cesa_cbc_des_alg;
+extern struct skcipher_alg mv_cesa_ecb_des3_ede_alg;
+extern struct skcipher_alg mv_cesa_cbc_des3_ede_alg;
+extern struct skcipher_alg mv_cesa_ecb_aes_alg;
+extern struct skcipher_alg mv_cesa_cbc_aes_alg;
 
 #endif /* __MARVELL_CESA_H__ */
diff --git a/drivers/crypto/marvell/cipher.c b/drivers/crypto/marvell/cipher.c
index 098871a22a54..0ae84ec9e21c 100644
--- a/drivers/crypto/marvell/cipher.c
+++ b/drivers/crypto/marvell/cipher.c
@@ -32,23 +32,23 @@ struct mv_cesa_aes_ctx {
 	struct crypto_aes_ctx aes;
 };
 
-struct mv_cesa_ablkcipher_dma_iter {
+struct mv_cesa_skcipher_dma_iter {
 	struct mv_cesa_dma_iter base;
 	struct mv_cesa_sg_dma_iter src;
 	struct mv_cesa_sg_dma_iter dst;
 };
 
 static inline void
-mv_cesa_ablkcipher_req_iter_init(struct mv_cesa_ablkcipher_dma_iter *iter,
-				 struct ablkcipher_request *req)
+mv_cesa_skcipher_req_iter_init(struct mv_cesa_skcipher_dma_iter *iter,
+			       struct skcipher_request *req)
 {
-	mv_cesa_req_dma_iter_init(&iter->base, req->nbytes);
+	mv_cesa_req_dma_iter_init(&iter->base, req->cryptlen);
 	mv_cesa_sg_dma_iter_init(&iter->src, req->src, DMA_TO_DEVICE);
 	mv_cesa_sg_dma_iter_init(&iter->dst, req->dst, DMA_FROM_DEVICE);
 }
 
 static inline bool
-mv_cesa_ablkcipher_req_iter_next_op(struct mv_cesa_ablkcipher_dma_iter *iter)
+mv_cesa_skcipher_req_iter_next_op(struct mv_cesa_skcipher_dma_iter *iter)
 {
 	iter->src.op_offset = 0;
 	iter->dst.op_offset = 0;
@@ -57,9 +57,9 @@ mv_cesa_ablkcipher_req_iter_next_op(struct mv_cesa_ablkcipher_dma_iter *iter)
 }
 
 static inline void
-mv_cesa_ablkcipher_dma_cleanup(struct ablkcipher_request *req)
+mv_cesa_skcipher_dma_cleanup(struct skcipher_request *req)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
 
 	if (req->dst != req->src) {
 		dma_unmap_sg(cesa_dev->dev, req->dst, creq->dst_nents,
@@ -73,20 +73,20 @@ mv_cesa_ablkcipher_dma_cleanup(struct ablkcipher_request *req)
 	mv_cesa_dma_cleanup(&creq->base);
 }
 
-static inline void mv_cesa_ablkcipher_cleanup(struct ablkcipher_request *req)
+static inline void mv_cesa_skcipher_cleanup(struct skcipher_request *req)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
 
 	if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ)
-		mv_cesa_ablkcipher_dma_cleanup(req);
+		mv_cesa_skcipher_dma_cleanup(req);
 }
 
-static void mv_cesa_ablkcipher_std_step(struct ablkcipher_request *req)
+static void mv_cesa_skcipher_std_step(struct skcipher_request *req)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
-	struct mv_cesa_ablkcipher_std_req *sreq = &creq->std;
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
+	struct mv_cesa_skcipher_std_req *sreq = &creq->std;
 	struct mv_cesa_engine *engine = creq->base.engine;
-	size_t  len = min_t(size_t, req->nbytes - sreq->offset,
+	size_t  len = min_t(size_t, req->cryptlen - sreq->offset,
 			    CESA_SA_SRAM_PAYLOAD_SIZE);
 
 	mv_cesa_adjust_op(engine, &sreq->op);
@@ -114,11 +114,11 @@ static void mv_cesa_ablkcipher_std_step(struct ablkcipher_request *req)
 	writel(CESA_SA_CMD_EN_CESA_SA_ACCL0, engine->regs + CESA_SA_CMD);
 }
 
-static int mv_cesa_ablkcipher_std_process(struct ablkcipher_request *req,
-					  u32 status)
+static int mv_cesa_skcipher_std_process(struct skcipher_request *req,
+					u32 status)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
-	struct mv_cesa_ablkcipher_std_req *sreq = &creq->std;
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
+	struct mv_cesa_skcipher_std_req *sreq = &creq->std;
 	struct mv_cesa_engine *engine = creq->base.engine;
 	size_t len;
 
@@ -127,122 +127,130 @@ static int mv_cesa_ablkcipher_std_process(struct ablkcipher_request *req,
 				   sreq->size, sreq->offset);
 
 	sreq->offset += len;
-	if (sreq->offset < req->nbytes)
+	if (sreq->offset < req->cryptlen)
 		return -EINPROGRESS;
 
 	return 0;
 }
 
-static int mv_cesa_ablkcipher_process(struct crypto_async_request *req,
-				      u32 status)
+static int mv_cesa_skcipher_process(struct crypto_async_request *req,
+				    u32 status)
 {
-	struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+	struct skcipher_request *skreq = skcipher_request_cast(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq);
 	struct mv_cesa_req *basereq = &creq->base;
 
 	if (mv_cesa_req_get_type(basereq) == CESA_STD_REQ)
-		return mv_cesa_ablkcipher_std_process(ablkreq, status);
+		return mv_cesa_skcipher_std_process(skreq, status);
 
 	return mv_cesa_dma_process(basereq, status);
 }
 
-static void mv_cesa_ablkcipher_step(struct crypto_async_request *req)
+static void mv_cesa_skcipher_step(struct crypto_async_request *req)
 {
-	struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+	struct skcipher_request *skreq = skcipher_request_cast(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq);
 
 	if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ)
 		mv_cesa_dma_step(&creq->base);
 	else
-		mv_cesa_ablkcipher_std_step(ablkreq);
+		mv_cesa_skcipher_std_step(skreq);
 }
 
 static inline void
-mv_cesa_ablkcipher_dma_prepare(struct ablkcipher_request *req)
+mv_cesa_skcipher_dma_prepare(struct skcipher_request *req)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
 	struct mv_cesa_req *basereq = &creq->base;
 
 	mv_cesa_dma_prepare(basereq, basereq->engine);
 }
 
 static inline void
-mv_cesa_ablkcipher_std_prepare(struct ablkcipher_request *req)
+mv_cesa_skcipher_std_prepare(struct skcipher_request *req)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
-	struct mv_cesa_ablkcipher_std_req *sreq = &creq->std;
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
+	struct mv_cesa_skcipher_std_req *sreq = &creq->std;
 
 	sreq->size = 0;
 	sreq->offset = 0;
 }
 
-static inline void mv_cesa_ablkcipher_prepare(struct crypto_async_request *req,
-					      struct mv_cesa_engine *engine)
+static inline void mv_cesa_skcipher_prepare(struct crypto_async_request *req,
+					    struct mv_cesa_engine *engine)
 {
-	struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+	struct skcipher_request *skreq = skcipher_request_cast(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq);
 	creq->base.engine = engine;
 
 	if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ)
-		mv_cesa_ablkcipher_dma_prepare(ablkreq);
+		mv_cesa_skcipher_dma_prepare(skreq);
 	else
-		mv_cesa_ablkcipher_std_prepare(ablkreq);
+		mv_cesa_skcipher_std_prepare(skreq);
 }
 
 static inline void
-mv_cesa_ablkcipher_req_cleanup(struct crypto_async_request *req)
+mv_cesa_skcipher_req_cleanup(struct crypto_async_request *req)
 {
-	struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
+	struct skcipher_request *skreq = skcipher_request_cast(req);
 
-	mv_cesa_ablkcipher_cleanup(ablkreq);
+	mv_cesa_skcipher_cleanup(skreq);
 }
 
 static void
-mv_cesa_ablkcipher_complete(struct crypto_async_request *req)
+mv_cesa_skcipher_complete(struct crypto_async_request *req)
 {
-	struct ablkcipher_request *ablkreq = ablkcipher_request_cast(req);
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(ablkreq);
+	struct skcipher_request *skreq = skcipher_request_cast(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(skreq);
 	struct mv_cesa_engine *engine = creq->base.engine;
 	unsigned int ivsize;
 
-	atomic_sub(ablkreq->nbytes, &engine->load);
-	ivsize = crypto_ablkcipher_ivsize(crypto_ablkcipher_reqtfm(ablkreq));
+	atomic_sub(skreq->cryptlen, &engine->load);
+	ivsize = crypto_skcipher_ivsize(crypto_skcipher_reqtfm(skreq));
 
 	if (mv_cesa_req_get_type(&creq->base) == CESA_DMA_REQ) {
 		struct mv_cesa_req *basereq;
 
 		basereq = &creq->base;
-		memcpy(ablkreq->info, basereq->chain.last->op->ctx.blkcipher.iv,
+		memcpy(skreq->iv, basereq->chain.last->op->ctx.blkcipher.iv,
 		       ivsize);
 	} else {
-		memcpy_fromio(ablkreq->info,
+		memcpy_fromio(skreq->iv,
 			      engine->sram + CESA_SA_CRYPT_IV_SRAM_OFFSET,
 			      ivsize);
 	}
 }
 
-static const struct mv_cesa_req_ops mv_cesa_ablkcipher_req_ops = {
-	.step = mv_cesa_ablkcipher_step,
-	.process = mv_cesa_ablkcipher_process,
-	.cleanup = mv_cesa_ablkcipher_req_cleanup,
-	.complete = mv_cesa_ablkcipher_complete,
+static const struct mv_cesa_req_ops mv_cesa_skcipher_req_ops = {
+	.step = mv_cesa_skcipher_step,
+	.process = mv_cesa_skcipher_process,
+	.cleanup = mv_cesa_skcipher_req_cleanup,
+	.complete = mv_cesa_skcipher_complete,
 };
 
-static int mv_cesa_ablkcipher_cra_init(struct crypto_tfm *tfm)
+static void mv_cesa_skcipher_cra_exit(struct crypto_tfm *tfm)
 {
-	struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+	void *ctx = crypto_tfm_ctx(tfm);
+
+	memzero_explicit(ctx, tfm->__crt_alg->cra_ctxsize);
+}
+
+static int mv_cesa_skcipher_cra_init(struct crypto_tfm *tfm)
+{
+	struct mv_cesa_ctx *ctx = crypto_tfm_ctx(tfm);
 
-	ctx->base.ops = &mv_cesa_ablkcipher_req_ops;
+	ctx->ops = &mv_cesa_skcipher_req_ops;
 
-	tfm->crt_ablkcipher.reqsize = sizeof(struct mv_cesa_ablkcipher_req);
+	crypto_skcipher_set_reqsize(__crypto_skcipher_cast(tfm),
+				    sizeof(struct mv_cesa_skcipher_req));
 
 	return 0;
 }
 
-static int mv_cesa_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int mv_cesa_aes_setkey(struct crypto_skcipher *cipher, const u8 *key,
 			      unsigned int len)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
 	struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(tfm);
 	int remaining;
 	int offset;
@@ -251,7 +259,7 @@ static int mv_cesa_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 
 	ret = crypto_aes_expand_key(&ctx->aes, key, len);
 	if (ret) {
-		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 		return ret;
 	}
 
@@ -264,16 +272,16 @@ static int mv_cesa_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 	return 0;
 }
 
-static int mv_cesa_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
+static int mv_cesa_des_setkey(struct crypto_skcipher *cipher, const u8 *key,
 			      unsigned int len)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
 	struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(tfm);
 	u32 tmp[DES_EXPKEY_WORDS];
 	int ret;
 
 	if (len != DES_KEY_SIZE) {
-		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 		return -EINVAL;
 	}
 
@@ -288,14 +296,14 @@ static int mv_cesa_des_setkey(struct crypto_ablkcipher *cipher, const u8 *key,
 	return 0;
 }
 
-static int mv_cesa_des3_ede_setkey(struct crypto_ablkcipher *cipher,
+static int mv_cesa_des3_ede_setkey(struct crypto_skcipher *cipher,
 				   const u8 *key, unsigned int len)
 {
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
+	struct crypto_tfm *tfm = crypto_skcipher_tfm(cipher);
 	struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(tfm);
 
 	if (len != DES3_EDE_KEY_SIZE) {
-		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
+		crypto_skcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 		return -EINVAL;
 	}
 
@@ -304,14 +312,14 @@ static int mv_cesa_des3_ede_setkey(struct crypto_ablkcipher *cipher,
 	return 0;
 }
 
-static int mv_cesa_ablkcipher_dma_req_init(struct ablkcipher_request *req,
-				const struct mv_cesa_op_ctx *op_templ)
+static int mv_cesa_skcipher_dma_req_init(struct skcipher_request *req,
+					 const struct mv_cesa_op_ctx *op_templ)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
 	gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
 		      GFP_KERNEL : GFP_ATOMIC;
 	struct mv_cesa_req *basereq = &creq->base;
-	struct mv_cesa_ablkcipher_dma_iter iter;
+	struct mv_cesa_skcipher_dma_iter iter;
 	bool skip_ctx = false;
 	int ret;
 	unsigned int ivsize;
@@ -339,7 +347,7 @@ static int mv_cesa_ablkcipher_dma_req_init(struct ablkcipher_request *req,
 	}
 
 	mv_cesa_tdma_desc_iter_init(&basereq->chain);
-	mv_cesa_ablkcipher_req_iter_init(&iter, req);
+	mv_cesa_skcipher_req_iter_init(&iter, req);
 
 	do {
 		struct mv_cesa_op_ctx *op;
@@ -370,10 +378,10 @@ static int mv_cesa_ablkcipher_dma_req_init(struct ablkcipher_request *req,
 		if (ret)
 			goto err_free_tdma;
 
-	} while (mv_cesa_ablkcipher_req_iter_next_op(&iter));
+	} while (mv_cesa_skcipher_req_iter_next_op(&iter));
 
 	/* Add output data for IV */
-	ivsize = crypto_ablkcipher_ivsize(crypto_ablkcipher_reqtfm(req));
+	ivsize = crypto_skcipher_ivsize(crypto_skcipher_reqtfm(req));
 	ret = mv_cesa_dma_add_result_op(&basereq->chain, CESA_SA_CFG_SRAM_OFFSET,
 				    CESA_SA_DATA_SRAM_OFFSET,
 				    CESA_TDMA_SRC_IN_SRAM, flags);
@@ -399,11 +407,11 @@ err_unmap_src:
 }
 
 static inline int
-mv_cesa_ablkcipher_std_req_init(struct ablkcipher_request *req,
-				const struct mv_cesa_op_ctx *op_templ)
+mv_cesa_skcipher_std_req_init(struct skcipher_request *req,
+			      const struct mv_cesa_op_ctx *op_templ)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
-	struct mv_cesa_ablkcipher_std_req *sreq = &creq->std;
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
+	struct mv_cesa_skcipher_std_req *sreq = &creq->std;
 	struct mv_cesa_req *basereq = &creq->base;
 
 	sreq->op = *op_templ;
@@ -414,23 +422,23 @@ mv_cesa_ablkcipher_std_req_init(struct ablkcipher_request *req,
 	return 0;
 }
 
-static int mv_cesa_ablkcipher_req_init(struct ablkcipher_request *req,
-				       struct mv_cesa_op_ctx *tmpl)
+static int mv_cesa_skcipher_req_init(struct skcipher_request *req,
+				     struct mv_cesa_op_ctx *tmpl)
 {
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	unsigned int blksize = crypto_ablkcipher_blocksize(tfm);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
+	struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+	unsigned int blksize = crypto_skcipher_blocksize(tfm);
 	int ret;
 
-	if (!IS_ALIGNED(req->nbytes, blksize))
+	if (!IS_ALIGNED(req->cryptlen, blksize))
 		return -EINVAL;
 
-	creq->src_nents = sg_nents_for_len(req->src, req->nbytes);
+	creq->src_nents = sg_nents_for_len(req->src, req->cryptlen);
 	if (creq->src_nents < 0) {
 		dev_err(cesa_dev->dev, "Invalid number of src SG");
 		return creq->src_nents;
 	}
-	creq->dst_nents = sg_nents_for_len(req->dst, req->nbytes);
+	creq->dst_nents = sg_nents_for_len(req->dst, req->cryptlen);
 	if (creq->dst_nents < 0) {
 		dev_err(cesa_dev->dev, "Invalid number of dst SG");
 		return creq->dst_nents;
@@ -440,36 +448,36 @@ static int mv_cesa_ablkcipher_req_init(struct ablkcipher_request *req,
 			      CESA_SA_DESC_CFG_OP_MSK);
 
 	if (cesa_dev->caps->has_tdma)
-		ret = mv_cesa_ablkcipher_dma_req_init(req, tmpl);
+		ret = mv_cesa_skcipher_dma_req_init(req, tmpl);
 	else
-		ret = mv_cesa_ablkcipher_std_req_init(req, tmpl);
+		ret = mv_cesa_skcipher_std_req_init(req, tmpl);
 
 	return ret;
 }
 
-static int mv_cesa_ablkcipher_queue_req(struct ablkcipher_request *req,
-					struct mv_cesa_op_ctx *tmpl)
+static int mv_cesa_skcipher_queue_req(struct skcipher_request *req,
+				      struct mv_cesa_op_ctx *tmpl)
 {
 	int ret;
-	struct mv_cesa_ablkcipher_req *creq = ablkcipher_request_ctx(req);
+	struct mv_cesa_skcipher_req *creq = skcipher_request_ctx(req);
 	struct mv_cesa_engine *engine;
 
-	ret = mv_cesa_ablkcipher_req_init(req, tmpl);
+	ret = mv_cesa_skcipher_req_init(req, tmpl);
 	if (ret)
 		return ret;
 
-	engine = mv_cesa_select_engine(req->nbytes);
-	mv_cesa_ablkcipher_prepare(&req->base, engine);
+	engine = mv_cesa_select_engine(req->cryptlen);
+	mv_cesa_skcipher_prepare(&req->base, engine);
 
 	ret = mv_cesa_queue_req(&req->base, &creq->base);
 
 	if (mv_cesa_req_needs_cleanup(&req->base, ret))
-		mv_cesa_ablkcipher_cleanup(req);
+		mv_cesa_skcipher_cleanup(req);
 
 	return ret;
 }
 
-static int mv_cesa_des_op(struct ablkcipher_request *req,
+static int mv_cesa_des_op(struct skcipher_request *req,
 			  struct mv_cesa_op_ctx *tmpl)
 {
 	struct mv_cesa_des_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
@@ -479,10 +487,10 @@ static int mv_cesa_des_op(struct ablkcipher_request *req,
 
 	memcpy(tmpl->ctx.blkcipher.key, ctx->key, DES_KEY_SIZE);
 
-	return mv_cesa_ablkcipher_queue_req(req, tmpl);
+	return mv_cesa_skcipher_queue_req(req, tmpl);
 }
 
-static int mv_cesa_ecb_des_encrypt(struct ablkcipher_request *req)
+static int mv_cesa_ecb_des_encrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -493,7 +501,7 @@ static int mv_cesa_ecb_des_encrypt(struct ablkcipher_request *req)
 	return mv_cesa_des_op(req, &tmpl);
 }
 
-static int mv_cesa_ecb_des_decrypt(struct ablkcipher_request *req)
+static int mv_cesa_ecb_des_decrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -504,41 +512,38 @@ static int mv_cesa_ecb_des_decrypt(struct ablkcipher_request *req)
 	return mv_cesa_des_op(req, &tmpl);
 }
 
-struct crypto_alg mv_cesa_ecb_des_alg = {
-	.cra_name = "ecb(des)",
-	.cra_driver_name = "mv-ecb-des",
-	.cra_priority = 300,
-	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
-		     CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize = DES_BLOCK_SIZE,
-	.cra_ctxsize = sizeof(struct mv_cesa_des_ctx),
-	.cra_alignmask = 0,
-	.cra_type = &crypto_ablkcipher_type,
-	.cra_module = THIS_MODULE,
-	.cra_init = mv_cesa_ablkcipher_cra_init,
-	.cra_u = {
-		.ablkcipher = {
-			.min_keysize = DES_KEY_SIZE,
-			.max_keysize = DES_KEY_SIZE,
-			.setkey = mv_cesa_des_setkey,
-			.encrypt = mv_cesa_ecb_des_encrypt,
-			.decrypt = mv_cesa_ecb_des_decrypt,
-		},
+struct skcipher_alg mv_cesa_ecb_des_alg = {
+	.setkey = mv_cesa_des_setkey,
+	.encrypt = mv_cesa_ecb_des_encrypt,
+	.decrypt = mv_cesa_ecb_des_decrypt,
+	.min_keysize = DES_KEY_SIZE,
+	.max_keysize = DES_KEY_SIZE,
+	.base = {
+		.cra_name = "ecb(des)",
+		.cra_driver_name = "mv-ecb-des",
+		.cra_priority = 300,
+		.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+		.cra_blocksize = DES_BLOCK_SIZE,
+		.cra_ctxsize = sizeof(struct mv_cesa_des_ctx),
+		.cra_alignmask = 0,
+		.cra_module = THIS_MODULE,
+		.cra_init = mv_cesa_skcipher_cra_init,
+		.cra_exit = mv_cesa_skcipher_cra_exit,
 	},
 };
 
-static int mv_cesa_cbc_des_op(struct ablkcipher_request *req,
+static int mv_cesa_cbc_des_op(struct skcipher_request *req,
 			      struct mv_cesa_op_ctx *tmpl)
 {
 	mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC,
 			      CESA_SA_DESC_CFG_CRYPTCM_MSK);
 
-	memcpy(tmpl->ctx.blkcipher.iv, req->info, DES_BLOCK_SIZE);
+	memcpy(tmpl->ctx.blkcipher.iv, req->iv, DES_BLOCK_SIZE);
 
 	return mv_cesa_des_op(req, tmpl);
 }
 
-static int mv_cesa_cbc_des_encrypt(struct ablkcipher_request *req)
+static int mv_cesa_cbc_des_encrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -547,7 +552,7 @@ static int mv_cesa_cbc_des_encrypt(struct ablkcipher_request *req)
 	return mv_cesa_cbc_des_op(req, &tmpl);
 }
 
-static int mv_cesa_cbc_des_decrypt(struct ablkcipher_request *req)
+static int mv_cesa_cbc_des_decrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -556,31 +561,28 @@ static int mv_cesa_cbc_des_decrypt(struct ablkcipher_request *req)
 	return mv_cesa_cbc_des_op(req, &tmpl);
 }
 
-struct crypto_alg mv_cesa_cbc_des_alg = {
-	.cra_name = "cbc(des)",
-	.cra_driver_name = "mv-cbc-des",
-	.cra_priority = 300,
-	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
-		     CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize = DES_BLOCK_SIZE,
-	.cra_ctxsize = sizeof(struct mv_cesa_des_ctx),
-	.cra_alignmask = 0,
-	.cra_type = &crypto_ablkcipher_type,
-	.cra_module = THIS_MODULE,
-	.cra_init = mv_cesa_ablkcipher_cra_init,
-	.cra_u = {
-		.ablkcipher = {
-			.min_keysize = DES_KEY_SIZE,
-			.max_keysize = DES_KEY_SIZE,
-			.ivsize	     = DES_BLOCK_SIZE,
-			.setkey = mv_cesa_des_setkey,
-			.encrypt = mv_cesa_cbc_des_encrypt,
-			.decrypt = mv_cesa_cbc_des_decrypt,
-		},
+struct skcipher_alg mv_cesa_cbc_des_alg = {
+	.setkey = mv_cesa_des_setkey,
+	.encrypt = mv_cesa_cbc_des_encrypt,
+	.decrypt = mv_cesa_cbc_des_decrypt,
+	.min_keysize = DES_KEY_SIZE,
+	.max_keysize = DES_KEY_SIZE,
+	.ivsize = DES_BLOCK_SIZE,
+	.base = {
+		.cra_name = "cbc(des)",
+		.cra_driver_name = "mv-cbc-des",
+		.cra_priority = 300,
+		.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+		.cra_blocksize = DES_BLOCK_SIZE,
+		.cra_ctxsize = sizeof(struct mv_cesa_des_ctx),
+		.cra_alignmask = 0,
+		.cra_module = THIS_MODULE,
+		.cra_init = mv_cesa_skcipher_cra_init,
+		.cra_exit = mv_cesa_skcipher_cra_exit,
 	},
 };
 
-static int mv_cesa_des3_op(struct ablkcipher_request *req,
+static int mv_cesa_des3_op(struct skcipher_request *req,
 			   struct mv_cesa_op_ctx *tmpl)
 {
 	struct mv_cesa_des3_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
@@ -590,10 +592,10 @@ static int mv_cesa_des3_op(struct ablkcipher_request *req,
 
 	memcpy(tmpl->ctx.blkcipher.key, ctx->key, DES3_EDE_KEY_SIZE);
 
-	return mv_cesa_ablkcipher_queue_req(req, tmpl);
+	return mv_cesa_skcipher_queue_req(req, tmpl);
 }
 
-static int mv_cesa_ecb_des3_ede_encrypt(struct ablkcipher_request *req)
+static int mv_cesa_ecb_des3_ede_encrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -605,7 +607,7 @@ static int mv_cesa_ecb_des3_ede_encrypt(struct ablkcipher_request *req)
 	return mv_cesa_des3_op(req, &tmpl);
 }
 
-static int mv_cesa_ecb_des3_ede_decrypt(struct ablkcipher_request *req)
+static int mv_cesa_ecb_des3_ede_decrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -617,39 +619,36 @@ static int mv_cesa_ecb_des3_ede_decrypt(struct ablkcipher_request *req)
 	return mv_cesa_des3_op(req, &tmpl);
 }
 
-struct crypto_alg mv_cesa_ecb_des3_ede_alg = {
-	.cra_name = "ecb(des3_ede)",
-	.cra_driver_name = "mv-ecb-des3-ede",
-	.cra_priority = 300,
-	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
-		     CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize = DES3_EDE_BLOCK_SIZE,
-	.cra_ctxsize = sizeof(struct mv_cesa_des3_ctx),
-	.cra_alignmask = 0,
-	.cra_type = &crypto_ablkcipher_type,
-	.cra_module = THIS_MODULE,
-	.cra_init = mv_cesa_ablkcipher_cra_init,
-	.cra_u = {
-		.ablkcipher = {
-			.min_keysize = DES3_EDE_KEY_SIZE,
-			.max_keysize = DES3_EDE_KEY_SIZE,
-			.ivsize	     = DES3_EDE_BLOCK_SIZE,
-			.setkey = mv_cesa_des3_ede_setkey,
-			.encrypt = mv_cesa_ecb_des3_ede_encrypt,
-			.decrypt = mv_cesa_ecb_des3_ede_decrypt,
-		},
+struct skcipher_alg mv_cesa_ecb_des3_ede_alg = {
+	.setkey = mv_cesa_des3_ede_setkey,
+	.encrypt = mv_cesa_ecb_des3_ede_encrypt,
+	.decrypt = mv_cesa_ecb_des3_ede_decrypt,
+	.min_keysize = DES3_EDE_KEY_SIZE,
+	.max_keysize = DES3_EDE_KEY_SIZE,
+	.ivsize = DES3_EDE_BLOCK_SIZE,
+	.base = {
+		.cra_name = "ecb(des3_ede)",
+		.cra_driver_name = "mv-ecb-des3-ede",
+		.cra_priority = 300,
+		.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+		.cra_blocksize = DES3_EDE_BLOCK_SIZE,
+		.cra_ctxsize = sizeof(struct mv_cesa_des3_ctx),
+		.cra_alignmask = 0,
+		.cra_module = THIS_MODULE,
+		.cra_init = mv_cesa_skcipher_cra_init,
+		.cra_exit = mv_cesa_skcipher_cra_exit,
 	},
 };
 
-static int mv_cesa_cbc_des3_op(struct ablkcipher_request *req,
+static int mv_cesa_cbc_des3_op(struct skcipher_request *req,
 			       struct mv_cesa_op_ctx *tmpl)
 {
-	memcpy(tmpl->ctx.blkcipher.iv, req->info, DES3_EDE_BLOCK_SIZE);
+	memcpy(tmpl->ctx.blkcipher.iv, req->iv, DES3_EDE_BLOCK_SIZE);
 
 	return mv_cesa_des3_op(req, tmpl);
 }
 
-static int mv_cesa_cbc_des3_ede_encrypt(struct ablkcipher_request *req)
+static int mv_cesa_cbc_des3_ede_encrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -661,7 +660,7 @@ static int mv_cesa_cbc_des3_ede_encrypt(struct ablkcipher_request *req)
 	return mv_cesa_cbc_des3_op(req, &tmpl);
 }
 
-static int mv_cesa_cbc_des3_ede_decrypt(struct ablkcipher_request *req)
+static int mv_cesa_cbc_des3_ede_decrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -673,31 +672,28 @@ static int mv_cesa_cbc_des3_ede_decrypt(struct ablkcipher_request *req)
 	return mv_cesa_cbc_des3_op(req, &tmpl);
 }
 
-struct crypto_alg mv_cesa_cbc_des3_ede_alg = {
-	.cra_name = "cbc(des3_ede)",
-	.cra_driver_name = "mv-cbc-des3-ede",
-	.cra_priority = 300,
-	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
-		     CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize = DES3_EDE_BLOCK_SIZE,
-	.cra_ctxsize = sizeof(struct mv_cesa_des3_ctx),
-	.cra_alignmask = 0,
-	.cra_type = &crypto_ablkcipher_type,
-	.cra_module = THIS_MODULE,
-	.cra_init = mv_cesa_ablkcipher_cra_init,
-	.cra_u = {
-		.ablkcipher = {
-			.min_keysize = DES3_EDE_KEY_SIZE,
-			.max_keysize = DES3_EDE_KEY_SIZE,
-			.ivsize	     = DES3_EDE_BLOCK_SIZE,
-			.setkey = mv_cesa_des3_ede_setkey,
-			.encrypt = mv_cesa_cbc_des3_ede_encrypt,
-			.decrypt = mv_cesa_cbc_des3_ede_decrypt,
-		},
+struct skcipher_alg mv_cesa_cbc_des3_ede_alg = {
+	.setkey = mv_cesa_des3_ede_setkey,
+	.encrypt = mv_cesa_cbc_des3_ede_encrypt,
+	.decrypt = mv_cesa_cbc_des3_ede_decrypt,
+	.min_keysize = DES3_EDE_KEY_SIZE,
+	.max_keysize = DES3_EDE_KEY_SIZE,
+	.ivsize = DES3_EDE_BLOCK_SIZE,
+	.base = {
+		.cra_name = "cbc(des3_ede)",
+		.cra_driver_name = "mv-cbc-des3-ede",
+		.cra_priority = 300,
+		.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+		.cra_blocksize = DES3_EDE_BLOCK_SIZE,
+		.cra_ctxsize = sizeof(struct mv_cesa_des3_ctx),
+		.cra_alignmask = 0,
+		.cra_module = THIS_MODULE,
+		.cra_init = mv_cesa_skcipher_cra_init,
+		.cra_exit = mv_cesa_skcipher_cra_exit,
 	},
 };
 
-static int mv_cesa_aes_op(struct ablkcipher_request *req,
+static int mv_cesa_aes_op(struct skcipher_request *req,
 			  struct mv_cesa_op_ctx *tmpl)
 {
 	struct mv_cesa_aes_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
@@ -724,10 +720,10 @@ static int mv_cesa_aes_op(struct ablkcipher_request *req,
 			      CESA_SA_DESC_CFG_CRYPTM_MSK |
 			      CESA_SA_DESC_CFG_AES_LEN_MSK);
 
-	return mv_cesa_ablkcipher_queue_req(req, tmpl);
+	return mv_cesa_skcipher_queue_req(req, tmpl);
 }
 
-static int mv_cesa_ecb_aes_encrypt(struct ablkcipher_request *req)
+static int mv_cesa_ecb_aes_encrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -738,7 +734,7 @@ static int mv_cesa_ecb_aes_encrypt(struct ablkcipher_request *req)
 	return mv_cesa_aes_op(req, &tmpl);
 }
 
-static int mv_cesa_ecb_aes_decrypt(struct ablkcipher_request *req)
+static int mv_cesa_ecb_aes_decrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -749,40 +745,37 @@ static int mv_cesa_ecb_aes_decrypt(struct ablkcipher_request *req)
 	return mv_cesa_aes_op(req, &tmpl);
 }
 
-struct crypto_alg mv_cesa_ecb_aes_alg = {
-	.cra_name = "ecb(aes)",
-	.cra_driver_name = "mv-ecb-aes",
-	.cra_priority = 300,
-	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
-		     CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize = AES_BLOCK_SIZE,
-	.cra_ctxsize = sizeof(struct mv_cesa_aes_ctx),
-	.cra_alignmask = 0,
-	.cra_type = &crypto_ablkcipher_type,
-	.cra_module = THIS_MODULE,
-	.cra_init = mv_cesa_ablkcipher_cra_init,
-	.cra_u = {
-		.ablkcipher = {
-			.min_keysize = AES_MIN_KEY_SIZE,
-			.max_keysize = AES_MAX_KEY_SIZE,
-			.setkey = mv_cesa_aes_setkey,
-			.encrypt = mv_cesa_ecb_aes_encrypt,
-			.decrypt = mv_cesa_ecb_aes_decrypt,
-		},
+struct skcipher_alg mv_cesa_ecb_aes_alg = {
+	.setkey = mv_cesa_aes_setkey,
+	.encrypt = mv_cesa_ecb_aes_encrypt,
+	.decrypt = mv_cesa_ecb_aes_decrypt,
+	.min_keysize = AES_MIN_KEY_SIZE,
+	.max_keysize = AES_MAX_KEY_SIZE,
+	.base = {
+		.cra_name = "ecb(aes)",
+		.cra_driver_name = "mv-ecb-aes",
+		.cra_priority = 300,
+		.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+		.cra_blocksize = AES_BLOCK_SIZE,
+		.cra_ctxsize = sizeof(struct mv_cesa_aes_ctx),
+		.cra_alignmask = 0,
+		.cra_module = THIS_MODULE,
+		.cra_init = mv_cesa_skcipher_cra_init,
+		.cra_exit = mv_cesa_skcipher_cra_exit,
 	},
 };
 
-static int mv_cesa_cbc_aes_op(struct ablkcipher_request *req,
+static int mv_cesa_cbc_aes_op(struct skcipher_request *req,
 			      struct mv_cesa_op_ctx *tmpl)
 {
 	mv_cesa_update_op_cfg(tmpl, CESA_SA_DESC_CFG_CRYPTCM_CBC,
 			      CESA_SA_DESC_CFG_CRYPTCM_MSK);
-	memcpy(tmpl->ctx.blkcipher.iv, req->info, AES_BLOCK_SIZE);
+	memcpy(tmpl->ctx.blkcipher.iv, req->iv, AES_BLOCK_SIZE);
 
 	return mv_cesa_aes_op(req, tmpl);
 }
 
-static int mv_cesa_cbc_aes_encrypt(struct ablkcipher_request *req)
+static int mv_cesa_cbc_aes_encrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -791,7 +784,7 @@ static int mv_cesa_cbc_aes_encrypt(struct ablkcipher_request *req)
 	return mv_cesa_cbc_aes_op(req, &tmpl);
 }
 
-static int mv_cesa_cbc_aes_decrypt(struct ablkcipher_request *req)
+static int mv_cesa_cbc_aes_decrypt(struct skcipher_request *req)
 {
 	struct mv_cesa_op_ctx tmpl;
 
@@ -800,26 +793,23 @@ static int mv_cesa_cbc_aes_decrypt(struct ablkcipher_request *req)
 	return mv_cesa_cbc_aes_op(req, &tmpl);
 }
 
-struct crypto_alg mv_cesa_cbc_aes_alg = {
-	.cra_name = "cbc(aes)",
-	.cra_driver_name = "mv-cbc-aes",
-	.cra_priority = 300,
-	.cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER |
-		     CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize = AES_BLOCK_SIZE,
-	.cra_ctxsize = sizeof(struct mv_cesa_aes_ctx),
-	.cra_alignmask = 0,
-	.cra_type = &crypto_ablkcipher_type,
-	.cra_module = THIS_MODULE,
-	.cra_init = mv_cesa_ablkcipher_cra_init,
-	.cra_u = {
-		.ablkcipher = {
-			.min_keysize = AES_MIN_KEY_SIZE,
-			.max_keysize = AES_MAX_KEY_SIZE,
-			.ivsize = AES_BLOCK_SIZE,
-			.setkey = mv_cesa_aes_setkey,
-			.encrypt = mv_cesa_cbc_aes_encrypt,
-			.decrypt = mv_cesa_cbc_aes_decrypt,
-		},
+struct skcipher_alg mv_cesa_cbc_aes_alg = {
+	.setkey = mv_cesa_aes_setkey,
+	.encrypt = mv_cesa_cbc_aes_encrypt,
+	.decrypt = mv_cesa_cbc_aes_decrypt,
+	.min_keysize = AES_MIN_KEY_SIZE,
+	.max_keysize = AES_MAX_KEY_SIZE,
+	.ivsize = AES_BLOCK_SIZE,
+	.base = {
+		.cra_name = "cbc(aes)",
+		.cra_driver_name = "mv-cbc-aes",
+		.cra_priority = 300,
+		.cra_flags = CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
+		.cra_blocksize = AES_BLOCK_SIZE,
+		.cra_ctxsize = sizeof(struct mv_cesa_aes_ctx),
+		.cra_alignmask = 0,
+		.cra_module = THIS_MODULE,
+		.cra_init = mv_cesa_skcipher_cra_init,
+		.cra_exit = mv_cesa_skcipher_cra_exit,
 	},
 };
diff --git a/drivers/crypto/marvell/tdma.c b/drivers/crypto/marvell/tdma.c
index c76375ff376d..d0ef171c18df 100644
--- a/drivers/crypto/marvell/tdma.c
+++ b/drivers/crypto/marvell/tdma.c
@@ -304,10 +304,7 @@ int mv_cesa_dma_add_dummy_launch(struct mv_cesa_tdma_chain *chain, gfp_t flags)
 	struct mv_cesa_tdma_desc *tdma;
 
 	tdma = mv_cesa_dma_add_desc(chain, flags);
-	if (IS_ERR(tdma))
-		return PTR_ERR(tdma);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(tdma);
 }
 
 int mv_cesa_dma_add_dummy_end(struct mv_cesa_tdma_chain *chain, gfp_t flags)
diff --git a/drivers/crypto/mediatek/mtk-aes.c b/drivers/crypto/mediatek/mtk-aes.c
index 9e845e866dec..c2058cf59f57 100644
--- a/drivers/crypto/mediatek/mtk-aes.c
+++ b/drivers/crypto/mediatek/mtk-aes.c
@@ -13,6 +13,7 @@
  */
 
 #include <crypto/aes.h>
+#include <crypto/gcm.h>
 #include "mtk-platform.h"
 
 #define AES_QUEUE_SIZE		512
@@ -137,11 +138,6 @@ struct mtk_aes_gcm_ctx {
 	struct crypto_skcipher *ctr;
 };
 
-struct mtk_aes_gcm_setkey_result {
-	int err;
-	struct completion completion;
-};
-
 struct mtk_aes_drv {
 	struct list_head dev_list;
 	/* Device list lock */
@@ -928,25 +924,19 @@ static int mtk_aes_gcm_start(struct mtk_cryp *cryp, struct mtk_aes_rec *aes)
 static int mtk_aes_gcm_crypt(struct aead_request *req, u64 mode)
 {
 	struct mtk_aes_base_ctx *ctx = crypto_aead_ctx(crypto_aead_reqtfm(req));
+	struct mtk_aes_gcm_ctx *gctx = mtk_aes_gcm_ctx_cast(ctx);
 	struct mtk_aes_reqctx *rctx = aead_request_ctx(req);
 
+	/* Empty messages are not supported yet */
+	if (!gctx->textlen && !req->assoclen)
+		return -EINVAL;
+
 	rctx->mode = AES_FLAGS_GCM | mode;
 
 	return mtk_aes_handle_queue(ctx->cryp, !!(mode & AES_FLAGS_ENCRYPT),
 				    &req->base);
 }
 
-static void mtk_gcm_setkey_done(struct crypto_async_request *req, int err)
-{
-	struct mtk_aes_gcm_setkey_result *result = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	result->err = err;
-	complete(&result->completion);
-}
-
 /*
  * Because of the hardware limitation, we need to pre-calculate key(H)
  * for the GHASH operation. The result of the encryption operation
@@ -962,7 +952,7 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 		u32 hash[4];
 		u8 iv[8];
 
-		struct mtk_aes_gcm_setkey_result result;
+		struct crypto_wait wait;
 
 		struct scatterlist sg[1];
 		struct skcipher_request req;
@@ -1002,22 +992,17 @@ static int mtk_aes_gcm_setkey(struct crypto_aead *aead, const u8 *key,
 	if (!data)
 		return -ENOMEM;
 
-	init_completion(&data->result.completion);
+	crypto_init_wait(&data->wait);
 	sg_init_one(data->sg, &data->hash, AES_BLOCK_SIZE);
 	skcipher_request_set_tfm(&data->req, ctr);
 	skcipher_request_set_callback(&data->req, CRYPTO_TFM_REQ_MAY_SLEEP |
 				      CRYPTO_TFM_REQ_MAY_BACKLOG,
-				      mtk_gcm_setkey_done, &data->result);
+				      crypto_req_done, &data->wait);
 	skcipher_request_set_crypt(&data->req, data->sg, data->sg,
 				   AES_BLOCK_SIZE, data->iv);
 
-	err = crypto_skcipher_encrypt(&data->req);
-	if (err == -EINPROGRESS || err == -EBUSY) {
-		err = wait_for_completion_interruptible(
-			&data->result.completion);
-		if (!err)
-			err = data->result.err;
-	}
+	err = crypto_wait_req(crypto_skcipher_encrypt(&data->req),
+			      &data->wait);
 	if (err)
 		goto out;
 
@@ -1098,7 +1083,7 @@ static struct aead_alg aes_gcm_alg = {
 	.decrypt	= mtk_aes_gcm_decrypt,
 	.init		= mtk_aes_gcm_init,
 	.exit		= mtk_aes_gcm_exit,
-	.ivsize		= 12,
+	.ivsize		= GCM_AES_IV_SIZE,
 	.maxauthsize	= AES_BLOCK_SIZE,
 
 	.base = {
diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
deleted file mode 100644
index bf25f415eea6..000000000000
--- a/drivers/crypto/mv_cesa.c
+++ /dev/null
@@ -1,1216 +0,0 @@
-/*
- * Support for Marvell's crypto engine which can be found on some Orion5X
- * boards.
- *
- * Author: Sebastian Andrzej Siewior < sebastian at breakpoint dot cc >
- * License: GPLv2
- *
- */
-#include <crypto/aes.h>
-#include <crypto/algapi.h>
-#include <linux/crypto.h>
-#include <linux/genalloc.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/kthread.h>
-#include <linux/platform_device.h>
-#include <linux/scatterlist.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/clk.h>
-#include <crypto/hmac.h>
-#include <crypto/internal/hash.h>
-#include <crypto/sha.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-#include <linux/of_irq.h>
-
-#include "mv_cesa.h"
-
-#define MV_CESA	"MV-CESA:"
-#define MAX_HW_HASH_SIZE	0xFFFF
-#define MV_CESA_EXPIRE		500 /* msec */
-
-#define MV_CESA_DEFAULT_SRAM_SIZE	2048
-
-/*
- * STM:
- *   /---------------------------------------\
- *   |					     | request complete
- *  \./					     |
- * IDLE -> new request -> BUSY -> done -> DEQUEUE
- *                         /°\               |
- *			    |		     | more scatter entries
- *			    \________________/
- */
-enum engine_status {
-	ENGINE_IDLE,
-	ENGINE_BUSY,
-	ENGINE_W_DEQUEUE,
-};
-
-/**
- * struct req_progress - used for every crypt request
- * @src_sg_it:		sg iterator for src
- * @dst_sg_it:		sg iterator for dst
- * @sg_src_left:	bytes left in src to process (scatter list)
- * @src_start:		offset to add to src start position (scatter list)
- * @crypt_len:		length of current hw crypt/hash process
- * @hw_nbytes:		total bytes to process in hw for this request
- * @copy_back:		whether to copy data back (crypt) or not (hash)
- * @sg_dst_left:	bytes left dst to process in this scatter list
- * @dst_start:		offset to add to dst start position (scatter list)
- * @hw_processed_bytes:	number of bytes processed by hw (request).
- *
- * sg helper are used to iterate over the scatterlist. Since the size of the
- * SRAM may be less than the scatter size, this struct struct is used to keep
- * track of progress within current scatterlist.
- */
-struct req_progress {
-	struct sg_mapping_iter src_sg_it;
-	struct sg_mapping_iter dst_sg_it;
-	void (*complete) (void);
-	void (*process) (int is_first);
-
-	/* src mostly */
-	int sg_src_left;
-	int src_start;
-	int crypt_len;
-	int hw_nbytes;
-	/* dst mostly */
-	int copy_back;
-	int sg_dst_left;
-	int dst_start;
-	int hw_processed_bytes;
-};
-
-struct crypto_priv {
-	void __iomem *reg;
-	void __iomem *sram;
-	struct gen_pool *sram_pool;
-	dma_addr_t sram_dma;
-	int irq;
-	struct clk *clk;
-	struct task_struct *queue_th;
-
-	/* the lock protects queue and eng_st */
-	spinlock_t lock;
-	struct crypto_queue queue;
-	enum engine_status eng_st;
-	struct timer_list completion_timer;
-	struct crypto_async_request *cur_req;
-	struct req_progress p;
-	int max_req_size;
-	int sram_size;
-	int has_sha1;
-	int has_hmac_sha1;
-};
-
-static struct crypto_priv *cpg;
-
-struct mv_ctx {
-	u8 aes_enc_key[AES_KEY_LEN];
-	u32 aes_dec_key[8];
-	int key_len;
-	u32 need_calc_aes_dkey;
-};
-
-enum crypto_op {
-	COP_AES_ECB,
-	COP_AES_CBC,
-};
-
-struct mv_req_ctx {
-	enum crypto_op op;
-	int decrypt;
-};
-
-enum hash_op {
-	COP_SHA1,
-	COP_HMAC_SHA1
-};
-
-struct mv_tfm_hash_ctx {
-	struct crypto_shash *fallback;
-	struct crypto_shash *base_hash;
-	u32 ivs[2 * SHA1_DIGEST_SIZE / 4];
-	int count_add;
-	enum hash_op op;
-};
-
-struct mv_req_hash_ctx {
-	u64 count;
-	u32 state[SHA1_DIGEST_SIZE / 4];
-	u8 buffer[SHA1_BLOCK_SIZE];
-	int first_hash;		/* marks that we don't have previous state */
-	int last_chunk;		/* marks that this is the 'final' request */
-	int extra_bytes;	/* unprocessed bytes in buffer */
-	enum hash_op op;
-	int count_add;
-};
-
-static void mv_completion_timer_callback(unsigned long unused)
-{
-	int active = readl(cpg->reg + SEC_ACCEL_CMD) & SEC_CMD_EN_SEC_ACCL0;
-
-	printk(KERN_ERR MV_CESA
-	       "completion timer expired (CESA %sactive), cleaning up.\n",
-	       active ? "" : "in");
-
-	del_timer(&cpg->completion_timer);
-	writel(SEC_CMD_DISABLE_SEC, cpg->reg + SEC_ACCEL_CMD);
-	while(readl(cpg->reg + SEC_ACCEL_CMD) & SEC_CMD_DISABLE_SEC)
-		printk(KERN_INFO MV_CESA "%s: waiting for engine finishing\n", __func__);
-	cpg->eng_st = ENGINE_W_DEQUEUE;
-	wake_up_process(cpg->queue_th);
-}
-
-static void mv_setup_timer(void)
-{
-	setup_timer(&cpg->completion_timer, &mv_completion_timer_callback, 0);
-	mod_timer(&cpg->completion_timer,
-			jiffies + msecs_to_jiffies(MV_CESA_EXPIRE));
-}
-
-static void compute_aes_dec_key(struct mv_ctx *ctx)
-{
-	struct crypto_aes_ctx gen_aes_key;
-	int key_pos;
-
-	if (!ctx->need_calc_aes_dkey)
-		return;
-
-	crypto_aes_expand_key(&gen_aes_key, ctx->aes_enc_key, ctx->key_len);
-
-	key_pos = ctx->key_len + 24;
-	memcpy(ctx->aes_dec_key, &gen_aes_key.key_enc[key_pos], 4 * 4);
-	switch (ctx->key_len) {
-	case AES_KEYSIZE_256:
-		key_pos -= 2;
-		/* fall */
-	case AES_KEYSIZE_192:
-		key_pos -= 2;
-		memcpy(&ctx->aes_dec_key[4], &gen_aes_key.key_enc[key_pos],
-				4 * 4);
-		break;
-	}
-	ctx->need_calc_aes_dkey = 0;
-}
-
-static int mv_setkey_aes(struct crypto_ablkcipher *cipher, const u8 *key,
-		unsigned int len)
-{
-	struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher);
-	struct mv_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	switch (len) {
-	case AES_KEYSIZE_128:
-	case AES_KEYSIZE_192:
-	case AES_KEYSIZE_256:
-		break;
-	default:
-		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
-		return -EINVAL;
-	}
-	ctx->key_len = len;
-	ctx->need_calc_aes_dkey = 1;
-
-	memcpy(ctx->aes_enc_key, key, AES_KEY_LEN);
-	return 0;
-}
-
-static void copy_src_to_buf(struct req_progress *p, char *dbuf, int len)
-{
-	int ret;
-	void *sbuf;
-	int copy_len;
-
-	while (len) {
-		if (!p->sg_src_left) {
-			ret = sg_miter_next(&p->src_sg_it);
-			BUG_ON(!ret);
-			p->sg_src_left = p->src_sg_it.length;
-			p->src_start = 0;
-		}
-
-		sbuf = p->src_sg_it.addr + p->src_start;
-
-		copy_len = min(p->sg_src_left, len);
-		memcpy(dbuf, sbuf, copy_len);
-
-		p->src_start += copy_len;
-		p->sg_src_left -= copy_len;
-
-		len -= copy_len;
-		dbuf += copy_len;
-	}
-}
-
-static void setup_data_in(void)
-{
-	struct req_progress *p = &cpg->p;
-	int data_in_sram =
-	    min(p->hw_nbytes - p->hw_processed_bytes, cpg->max_req_size);
-	copy_src_to_buf(p, cpg->sram + SRAM_DATA_IN_START + p->crypt_len,
-			data_in_sram - p->crypt_len);
-	p->crypt_len = data_in_sram;
-}
-
-static void mv_process_current_q(int first_block)
-{
-	struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req);
-	struct mv_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
-	struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
-	struct sec_accel_config op;
-
-	switch (req_ctx->op) {
-	case COP_AES_ECB:
-		op.config = CFG_OP_CRYPT_ONLY | CFG_ENCM_AES | CFG_ENC_MODE_ECB;
-		break;
-	case COP_AES_CBC:
-	default:
-		op.config = CFG_OP_CRYPT_ONLY | CFG_ENCM_AES | CFG_ENC_MODE_CBC;
-		op.enc_iv = ENC_IV_POINT(SRAM_DATA_IV) |
-			ENC_IV_BUF_POINT(SRAM_DATA_IV_BUF);
-		if (first_block)
-			memcpy(cpg->sram + SRAM_DATA_IV, req->info, 16);
-		break;
-	}
-	if (req_ctx->decrypt) {
-		op.config |= CFG_DIR_DEC;
-		memcpy(cpg->sram + SRAM_DATA_KEY_P, ctx->aes_dec_key,
-				AES_KEY_LEN);
-	} else {
-		op.config |= CFG_DIR_ENC;
-		memcpy(cpg->sram + SRAM_DATA_KEY_P, ctx->aes_enc_key,
-				AES_KEY_LEN);
-	}
-
-	switch (ctx->key_len) {
-	case AES_KEYSIZE_128:
-		op.config |= CFG_AES_LEN_128;
-		break;
-	case AES_KEYSIZE_192:
-		op.config |= CFG_AES_LEN_192;
-		break;
-	case AES_KEYSIZE_256:
-		op.config |= CFG_AES_LEN_256;
-		break;
-	}
-	op.enc_p = ENC_P_SRC(SRAM_DATA_IN_START) |
-		ENC_P_DST(SRAM_DATA_OUT_START);
-	op.enc_key_p = SRAM_DATA_KEY_P;
-
-	setup_data_in();
-	op.enc_len = cpg->p.crypt_len;
-	memcpy(cpg->sram + SRAM_CONFIG, &op,
-			sizeof(struct sec_accel_config));
-
-	/* GO */
-	mv_setup_timer();
-	writel(SEC_CMD_EN_SEC_ACCL0, cpg->reg + SEC_ACCEL_CMD);
-}
-
-static void mv_crypto_algo_completion(void)
-{
-	struct ablkcipher_request *req = ablkcipher_request_cast(cpg->cur_req);
-	struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
-
-	sg_miter_stop(&cpg->p.src_sg_it);
-	sg_miter_stop(&cpg->p.dst_sg_it);
-
-	if (req_ctx->op != COP_AES_CBC)
-		return ;
-
-	memcpy(req->info, cpg->sram + SRAM_DATA_IV_BUF, 16);
-}
-
-static void mv_process_hash_current(int first_block)
-{
-	struct ahash_request *req = ahash_request_cast(cpg->cur_req);
-	const struct mv_tfm_hash_ctx *tfm_ctx = crypto_tfm_ctx(req->base.tfm);
-	struct mv_req_hash_ctx *req_ctx = ahash_request_ctx(req);
-	struct req_progress *p = &cpg->p;
-	struct sec_accel_config op = { 0 };
-	int is_last;
-
-	switch (req_ctx->op) {
-	case COP_SHA1:
-	default:
-		op.config = CFG_OP_MAC_ONLY | CFG_MACM_SHA1;
-		break;
-	case COP_HMAC_SHA1:
-		op.config = CFG_OP_MAC_ONLY | CFG_MACM_HMAC_SHA1;
-		memcpy(cpg->sram + SRAM_HMAC_IV_IN,
-				tfm_ctx->ivs, sizeof(tfm_ctx->ivs));
-		break;
-	}
-
-	op.mac_src_p =
-		MAC_SRC_DATA_P(SRAM_DATA_IN_START) | MAC_SRC_TOTAL_LEN((u32)
-		req_ctx->
-		count);
-
-	setup_data_in();
-
-	op.mac_digest =
-		MAC_DIGEST_P(SRAM_DIGEST_BUF) | MAC_FRAG_LEN(p->crypt_len);
-	op.mac_iv =
-		MAC_INNER_IV_P(SRAM_HMAC_IV_IN) |
-		MAC_OUTER_IV_P(SRAM_HMAC_IV_OUT);
-
-	is_last = req_ctx->last_chunk
-		&& (p->hw_processed_bytes + p->crypt_len >= p->hw_nbytes)
-		&& (req_ctx->count <= MAX_HW_HASH_SIZE);
-	if (req_ctx->first_hash) {
-		if (is_last)
-			op.config |= CFG_NOT_FRAG;
-		else
-			op.config |= CFG_FIRST_FRAG;
-
-		req_ctx->first_hash = 0;
-	} else {
-		if (is_last)
-			op.config |= CFG_LAST_FRAG;
-		else
-			op.config |= CFG_MID_FRAG;
-
-		if (first_block) {
-			writel(req_ctx->state[0], cpg->reg + DIGEST_INITIAL_VAL_A);
-			writel(req_ctx->state[1], cpg->reg + DIGEST_INITIAL_VAL_B);
-			writel(req_ctx->state[2], cpg->reg + DIGEST_INITIAL_VAL_C);
-			writel(req_ctx->state[3], cpg->reg + DIGEST_INITIAL_VAL_D);
-			writel(req_ctx->state[4], cpg->reg + DIGEST_INITIAL_VAL_E);
-		}
-	}
-
-	memcpy(cpg->sram + SRAM_CONFIG, &op, sizeof(struct sec_accel_config));
-
-	/* GO */
-	mv_setup_timer();
-	writel(SEC_CMD_EN_SEC_ACCL0, cpg->reg + SEC_ACCEL_CMD);
-}
-
-static inline int mv_hash_import_sha1_ctx(const struct mv_req_hash_ctx *ctx,
-					  struct shash_desc *desc)
-{
-	int i;
-	struct sha1_state shash_state;
-
-	shash_state.count = ctx->count + ctx->count_add;
-	for (i = 0; i < 5; i++)
-		shash_state.state[i] = ctx->state[i];
-	memcpy(shash_state.buffer, ctx->buffer, sizeof(shash_state.buffer));
-	return crypto_shash_import(desc, &shash_state);
-}
-
-static int mv_hash_final_fallback(struct ahash_request *req)
-{
-	const struct mv_tfm_hash_ctx *tfm_ctx = crypto_tfm_ctx(req->base.tfm);
-	struct mv_req_hash_ctx *req_ctx = ahash_request_ctx(req);
-	SHASH_DESC_ON_STACK(shash, tfm_ctx->fallback);
-	int rc;
-
-	shash->tfm = tfm_ctx->fallback;
-	shash->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
-	if (unlikely(req_ctx->first_hash)) {
-		crypto_shash_init(shash);
-		crypto_shash_update(shash, req_ctx->buffer,
-				    req_ctx->extra_bytes);
-	} else {
-		/* only SHA1 for now....
-		 */
-		rc = mv_hash_import_sha1_ctx(req_ctx, shash);
-		if (rc)
-			goto out;
-	}
-	rc = crypto_shash_final(shash, req->result);
-out:
-	return rc;
-}
-
-static void mv_save_digest_state(struct mv_req_hash_ctx *ctx)
-{
-	ctx->state[0] = readl(cpg->reg + DIGEST_INITIAL_VAL_A);
-	ctx->state[1] = readl(cpg->reg + DIGEST_INITIAL_VAL_B);
-	ctx->state[2] = readl(cpg->reg + DIGEST_INITIAL_VAL_C);
-	ctx->state[3] = readl(cpg->reg + DIGEST_INITIAL_VAL_D);
-	ctx->state[4] = readl(cpg->reg + DIGEST_INITIAL_VAL_E);
-}
-
-static void mv_hash_algo_completion(void)
-{
-	struct ahash_request *req = ahash_request_cast(cpg->cur_req);
-	struct mv_req_hash_ctx *ctx = ahash_request_ctx(req);
-
-	if (ctx->extra_bytes)
-		copy_src_to_buf(&cpg->p, ctx->buffer, ctx->extra_bytes);
-	sg_miter_stop(&cpg->p.src_sg_it);
-
-	if (likely(ctx->last_chunk)) {
-		if (likely(ctx->count <= MAX_HW_HASH_SIZE)) {
-			memcpy(req->result, cpg->sram + SRAM_DIGEST_BUF,
-			       crypto_ahash_digestsize(crypto_ahash_reqtfm
-						       (req)));
-		} else {
-			mv_save_digest_state(ctx);
-			mv_hash_final_fallback(req);
-		}
-	} else {
-		mv_save_digest_state(ctx);
-	}
-}
-
-static void dequeue_complete_req(void)
-{
-	struct crypto_async_request *req = cpg->cur_req;
-	void *buf;
-	int ret;
-	cpg->p.hw_processed_bytes += cpg->p.crypt_len;
-	if (cpg->p.copy_back) {
-		int need_copy_len = cpg->p.crypt_len;
-		int sram_offset = 0;
-		do {
-			int dst_copy;
-
-			if (!cpg->p.sg_dst_left) {
-				ret = sg_miter_next(&cpg->p.dst_sg_it);
-				BUG_ON(!ret);
-				cpg->p.sg_dst_left = cpg->p.dst_sg_it.length;
-				cpg->p.dst_start = 0;
-			}
-
-			buf = cpg->p.dst_sg_it.addr;
-			buf += cpg->p.dst_start;
-
-			dst_copy = min(need_copy_len, cpg->p.sg_dst_left);
-
-			memcpy(buf,
-			       cpg->sram + SRAM_DATA_OUT_START + sram_offset,
-			       dst_copy);
-			sram_offset += dst_copy;
-			cpg->p.sg_dst_left -= dst_copy;
-			need_copy_len -= dst_copy;
-			cpg->p.dst_start += dst_copy;
-		} while (need_copy_len > 0);
-	}
-
-	cpg->p.crypt_len = 0;
-
-	BUG_ON(cpg->eng_st != ENGINE_W_DEQUEUE);
-	if (cpg->p.hw_processed_bytes < cpg->p.hw_nbytes) {
-		/* process next scatter list entry */
-		cpg->eng_st = ENGINE_BUSY;
-		cpg->p.process(0);
-	} else {
-		cpg->p.complete();
-		cpg->eng_st = ENGINE_IDLE;
-		local_bh_disable();
-		req->complete(req, 0);
-		local_bh_enable();
-	}
-}
-
-static int count_sgs(struct scatterlist *sl, unsigned int total_bytes)
-{
-	int i = 0;
-	size_t cur_len;
-
-	while (sl) {
-		cur_len = sl[i].length;
-		++i;
-		if (total_bytes > cur_len)
-			total_bytes -= cur_len;
-		else
-			break;
-	}
-
-	return i;
-}
-
-static void mv_start_new_crypt_req(struct ablkcipher_request *req)
-{
-	struct req_progress *p = &cpg->p;
-	int num_sgs;
-
-	cpg->cur_req = &req->base;
-	memset(p, 0, sizeof(struct req_progress));
-	p->hw_nbytes = req->nbytes;
-	p->complete = mv_crypto_algo_completion;
-	p->process = mv_process_current_q;
-	p->copy_back = 1;
-
-	num_sgs = count_sgs(req->src, req->nbytes);
-	sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);
-
-	num_sgs = count_sgs(req->dst, req->nbytes);
-	sg_miter_start(&p->dst_sg_it, req->dst, num_sgs, SG_MITER_TO_SG);
-
-	mv_process_current_q(1);
-}
-
-static void mv_start_new_hash_req(struct ahash_request *req)
-{
-	struct req_progress *p = &cpg->p;
-	struct mv_req_hash_ctx *ctx = ahash_request_ctx(req);
-	int num_sgs, hw_bytes, old_extra_bytes, rc;
-	cpg->cur_req = &req->base;
-	memset(p, 0, sizeof(struct req_progress));
-	hw_bytes = req->nbytes + ctx->extra_bytes;
-	old_extra_bytes = ctx->extra_bytes;
-
-	ctx->extra_bytes = hw_bytes % SHA1_BLOCK_SIZE;
-	if (ctx->extra_bytes != 0
-	    && (!ctx->last_chunk || ctx->count > MAX_HW_HASH_SIZE))
-		hw_bytes -= ctx->extra_bytes;
-	else
-		ctx->extra_bytes = 0;
-
-	num_sgs = count_sgs(req->src, req->nbytes);
-	sg_miter_start(&p->src_sg_it, req->src, num_sgs, SG_MITER_FROM_SG);
-
-	if (hw_bytes) {
-		p->hw_nbytes = hw_bytes;
-		p->complete = mv_hash_algo_completion;
-		p->process = mv_process_hash_current;
-
-		if (unlikely(old_extra_bytes)) {
-			memcpy(cpg->sram + SRAM_DATA_IN_START, ctx->buffer,
-			       old_extra_bytes);
-			p->crypt_len = old_extra_bytes;
-		}
-
-		mv_process_hash_current(1);
-	} else {
-		copy_src_to_buf(p, ctx->buffer + old_extra_bytes,
-				ctx->extra_bytes - old_extra_bytes);
-		sg_miter_stop(&p->src_sg_it);
-		if (ctx->last_chunk)
-			rc = mv_hash_final_fallback(req);
-		else
-			rc = 0;
-		cpg->eng_st = ENGINE_IDLE;
-		local_bh_disable();
-		req->base.complete(&req->base, rc);
-		local_bh_enable();
-	}
-}
-
-static int queue_manag(void *data)
-{
-	cpg->eng_st = ENGINE_IDLE;
-	do {
-		struct crypto_async_request *async_req = NULL;
-		struct crypto_async_request *backlog = NULL;
-
-		__set_current_state(TASK_INTERRUPTIBLE);
-
-		if (cpg->eng_st == ENGINE_W_DEQUEUE)
-			dequeue_complete_req();
-
-		spin_lock_irq(&cpg->lock);
-		if (cpg->eng_st == ENGINE_IDLE) {
-			backlog = crypto_get_backlog(&cpg->queue);
-			async_req = crypto_dequeue_request(&cpg->queue);
-			if (async_req) {
-				BUG_ON(cpg->eng_st != ENGINE_IDLE);
-				cpg->eng_st = ENGINE_BUSY;
-			}
-		}
-		spin_unlock_irq(&cpg->lock);
-
-		if (backlog) {
-			backlog->complete(backlog, -EINPROGRESS);
-			backlog = NULL;
-		}
-
-		if (async_req) {
-			if (crypto_tfm_alg_type(async_req->tfm) !=
-			    CRYPTO_ALG_TYPE_AHASH) {
-				struct ablkcipher_request *req =
-				    ablkcipher_request_cast(async_req);
-				mv_start_new_crypt_req(req);
-			} else {
-				struct ahash_request *req =
-				    ahash_request_cast(async_req);
-				mv_start_new_hash_req(req);
-			}
-			async_req = NULL;
-		}
-
-		schedule();
-
-	} while (!kthread_should_stop());
-	return 0;
-}
-
-static int mv_handle_req(struct crypto_async_request *req)
-{
-	unsigned long flags;
-	int ret;
-
-	spin_lock_irqsave(&cpg->lock, flags);
-	ret = crypto_enqueue_request(&cpg->queue, req);
-	spin_unlock_irqrestore(&cpg->lock, flags);
-	wake_up_process(cpg->queue_th);
-	return ret;
-}
-
-static int mv_enc_aes_ecb(struct ablkcipher_request *req)
-{
-	struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
-
-	req_ctx->op = COP_AES_ECB;
-	req_ctx->decrypt = 0;
-
-	return mv_handle_req(&req->base);
-}
-
-static int mv_dec_aes_ecb(struct ablkcipher_request *req)
-{
-	struct mv_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
-	struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
-
-	req_ctx->op = COP_AES_ECB;
-	req_ctx->decrypt = 1;
-
-	compute_aes_dec_key(ctx);
-	return mv_handle_req(&req->base);
-}
-
-static int mv_enc_aes_cbc(struct ablkcipher_request *req)
-{
-	struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
-
-	req_ctx->op = COP_AES_CBC;
-	req_ctx->decrypt = 0;
-
-	return mv_handle_req(&req->base);
-}
-
-static int mv_dec_aes_cbc(struct ablkcipher_request *req)
-{
-	struct mv_ctx *ctx = crypto_tfm_ctx(req->base.tfm);
-	struct mv_req_ctx *req_ctx = ablkcipher_request_ctx(req);
-
-	req_ctx->op = COP_AES_CBC;
-	req_ctx->decrypt = 1;
-
-	compute_aes_dec_key(ctx);
-	return mv_handle_req(&req->base);
-}
-
-static int mv_cra_init(struct crypto_tfm *tfm)
-{
-	tfm->crt_ablkcipher.reqsize = sizeof(struct mv_req_ctx);
-	return 0;
-}
-
-static void mv_init_hash_req_ctx(struct mv_req_hash_ctx *ctx, int op,
-				 int is_last, unsigned int req_len,
-				 int count_add)
-{
-	memset(ctx, 0, sizeof(*ctx));
-	ctx->op = op;
-	ctx->count = req_len;
-	ctx->first_hash = 1;
-	ctx->last_chunk = is_last;
-	ctx->count_add = count_add;
-}
-
-static void mv_update_hash_req_ctx(struct mv_req_hash_ctx *ctx, int is_last,
-				   unsigned req_len)
-{
-	ctx->last_chunk = is_last;
-	ctx->count += req_len;
-}
-
-static int mv_hash_init(struct ahash_request *req)
-{
-	const struct mv_tfm_hash_ctx *tfm_ctx = crypto_tfm_ctx(req->base.tfm);
-	mv_init_hash_req_ctx(ahash_request_ctx(req), tfm_ctx->op, 0, 0,
-			     tfm_ctx->count_add);
-	return 0;
-}
-
-static int mv_hash_update(struct ahash_request *req)
-{
-	if (!req->nbytes)
-		return 0;
-
-	mv_update_hash_req_ctx(ahash_request_ctx(req), 0, req->nbytes);
-	return mv_handle_req(&req->base);
-}
-
-static int mv_hash_final(struct ahash_request *req)
-{
-	struct mv_req_hash_ctx *ctx = ahash_request_ctx(req);
-
-	ahash_request_set_crypt(req, NULL, req->result, 0);
-	mv_update_hash_req_ctx(ctx, 1, 0);
-	return mv_handle_req(&req->base);
-}
-
-static int mv_hash_finup(struct ahash_request *req)
-{
-	mv_update_hash_req_ctx(ahash_request_ctx(req), 1, req->nbytes);
-	return mv_handle_req(&req->base);
-}
-
-static int mv_hash_digest(struct ahash_request *req)
-{
-	const struct mv_tfm_hash_ctx *tfm_ctx = crypto_tfm_ctx(req->base.tfm);
-	mv_init_hash_req_ctx(ahash_request_ctx(req), tfm_ctx->op, 1,
-			     req->nbytes, tfm_ctx->count_add);
-	return mv_handle_req(&req->base);
-}
-
-static void mv_hash_init_ivs(struct mv_tfm_hash_ctx *ctx, const void *istate,
-			     const void *ostate)
-{
-	const struct sha1_state *isha1_state = istate, *osha1_state = ostate;
-	int i;
-	for (i = 0; i < 5; i++) {
-		ctx->ivs[i] = cpu_to_be32(isha1_state->state[i]);
-		ctx->ivs[i + 5] = cpu_to_be32(osha1_state->state[i]);
-	}
-}
-
-static int mv_hash_setkey(struct crypto_ahash *tfm, const u8 * key,
-			  unsigned int keylen)
-{
-	int rc;
-	struct mv_tfm_hash_ctx *ctx = crypto_tfm_ctx(&tfm->base);
-	int bs, ds, ss;
-
-	if (!ctx->base_hash)
-		return 0;
-
-	rc = crypto_shash_setkey(ctx->fallback, key, keylen);
-	if (rc)
-		return rc;
-
-	/* Can't see a way to extract the ipad/opad from the fallback tfm
-	   so I'm basically copying code from the hmac module */
-	bs = crypto_shash_blocksize(ctx->base_hash);
-	ds = crypto_shash_digestsize(ctx->base_hash);
-	ss = crypto_shash_statesize(ctx->base_hash);
-
-	{
-		SHASH_DESC_ON_STACK(shash, ctx->base_hash);
-
-		unsigned int i;
-		char ipad[ss];
-		char opad[ss];
-
-		shash->tfm = ctx->base_hash;
-		shash->flags = crypto_shash_get_flags(ctx->base_hash) &
-		    CRYPTO_TFM_REQ_MAY_SLEEP;
-
-		if (keylen > bs) {
-			int err;
-
-			err =
-			    crypto_shash_digest(shash, key, keylen, ipad);
-			if (err)
-				return err;
-
-			keylen = ds;
-		} else
-			memcpy(ipad, key, keylen);
-
-		memset(ipad + keylen, 0, bs - keylen);
-		memcpy(opad, ipad, bs);
-
-		for (i = 0; i < bs; i++) {
-			ipad[i] ^= HMAC_IPAD_VALUE;
-			opad[i] ^= HMAC_OPAD_VALUE;
-		}
-
-		rc = crypto_shash_init(shash) ? :
-		    crypto_shash_update(shash, ipad, bs) ? :
-		    crypto_shash_export(shash, ipad) ? :
-		    crypto_shash_init(shash) ? :
-		    crypto_shash_update(shash, opad, bs) ? :
-		    crypto_shash_export(shash, opad);
-
-		if (rc == 0)
-			mv_hash_init_ivs(ctx, ipad, opad);
-
-		return rc;
-	}
-}
-
-static int mv_cra_hash_init(struct crypto_tfm *tfm, const char *base_hash_name,
-			    enum hash_op op, int count_add)
-{
-	const char *fallback_driver_name = crypto_tfm_alg_name(tfm);
-	struct mv_tfm_hash_ctx *ctx = crypto_tfm_ctx(tfm);
-	struct crypto_shash *fallback_tfm = NULL;
-	struct crypto_shash *base_hash = NULL;
-	int err = -ENOMEM;
-
-	ctx->op = op;
-	ctx->count_add = count_add;
-
-	/* Allocate a fallback and abort if it failed. */
-	fallback_tfm = crypto_alloc_shash(fallback_driver_name, 0,
-					  CRYPTO_ALG_NEED_FALLBACK);
-	if (IS_ERR(fallback_tfm)) {
-		printk(KERN_WARNING MV_CESA
-		       "Fallback driver '%s' could not be loaded!\n",
-		       fallback_driver_name);
-		err = PTR_ERR(fallback_tfm);
-		goto out;
-	}
-	ctx->fallback = fallback_tfm;
-
-	if (base_hash_name) {
-		/* Allocate a hash to compute the ipad/opad of hmac. */
-		base_hash = crypto_alloc_shash(base_hash_name, 0,
-					       CRYPTO_ALG_NEED_FALLBACK);
-		if (IS_ERR(base_hash)) {
-			printk(KERN_WARNING MV_CESA
-			       "Base driver '%s' could not be loaded!\n",
-			       base_hash_name);
-			err = PTR_ERR(base_hash);
-			goto err_bad_base;
-		}
-	}
-	ctx->base_hash = base_hash;
-
-	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
-				 sizeof(struct mv_req_hash_ctx) +
-				 crypto_shash_descsize(ctx->fallback));
-	return 0;
-err_bad_base:
-	crypto_free_shash(fallback_tfm);
-out:
-	return err;
-}
-
-static void mv_cra_hash_exit(struct crypto_tfm *tfm)
-{
-	struct mv_tfm_hash_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	crypto_free_shash(ctx->fallback);
-	if (ctx->base_hash)
-		crypto_free_shash(ctx->base_hash);
-}
-
-static int mv_cra_hash_sha1_init(struct crypto_tfm *tfm)
-{
-	return mv_cra_hash_init(tfm, NULL, COP_SHA1, 0);
-}
-
-static int mv_cra_hash_hmac_sha1_init(struct crypto_tfm *tfm)
-{
-	return mv_cra_hash_init(tfm, "sha1", COP_HMAC_SHA1, SHA1_BLOCK_SIZE);
-}
-
-static irqreturn_t crypto_int(int irq, void *priv)
-{
-	u32 val;
-
-	val = readl(cpg->reg + SEC_ACCEL_INT_STATUS);
-	if (!(val & SEC_INT_ACCEL0_DONE))
-		return IRQ_NONE;
-
-	if (!del_timer(&cpg->completion_timer)) {
-		printk(KERN_WARNING MV_CESA
-		       "got an interrupt but no pending timer?\n");
-	}
-	val &= ~SEC_INT_ACCEL0_DONE;
-	writel(val, cpg->reg + FPGA_INT_STATUS);
-	writel(val, cpg->reg + SEC_ACCEL_INT_STATUS);
-	BUG_ON(cpg->eng_st != ENGINE_BUSY);
-	cpg->eng_st = ENGINE_W_DEQUEUE;
-	wake_up_process(cpg->queue_th);
-	return IRQ_HANDLED;
-}
-
-static struct crypto_alg mv_aes_alg_ecb = {
-	.cra_name		= "ecb(aes)",
-	.cra_driver_name	= "mv-ecb-aes",
-	.cra_priority	= 300,
-	.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-			  CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize	= 16,
-	.cra_ctxsize	= sizeof(struct mv_ctx),
-	.cra_alignmask	= 0,
-	.cra_type	= &crypto_ablkcipher_type,
-	.cra_module	= THIS_MODULE,
-	.cra_init	= mv_cra_init,
-	.cra_u		= {
-		.ablkcipher = {
-			.min_keysize	=	AES_MIN_KEY_SIZE,
-			.max_keysize	=	AES_MAX_KEY_SIZE,
-			.setkey		=	mv_setkey_aes,
-			.encrypt	=	mv_enc_aes_ecb,
-			.decrypt	=	mv_dec_aes_ecb,
-		},
-	},
-};
-
-static struct crypto_alg mv_aes_alg_cbc = {
-	.cra_name		= "cbc(aes)",
-	.cra_driver_name	= "mv-cbc-aes",
-	.cra_priority	= 300,
-	.cra_flags	= CRYPTO_ALG_TYPE_ABLKCIPHER |
-			  CRYPTO_ALG_KERN_DRIVER_ONLY | CRYPTO_ALG_ASYNC,
-	.cra_blocksize	= AES_BLOCK_SIZE,
-	.cra_ctxsize	= sizeof(struct mv_ctx),
-	.cra_alignmask	= 0,
-	.cra_type	= &crypto_ablkcipher_type,
-	.cra_module	= THIS_MODULE,
-	.cra_init	= mv_cra_init,
-	.cra_u		= {
-		.ablkcipher = {
-			.ivsize		=	AES_BLOCK_SIZE,
-			.min_keysize	=	AES_MIN_KEY_SIZE,
-			.max_keysize	=	AES_MAX_KEY_SIZE,
-			.setkey		=	mv_setkey_aes,
-			.encrypt	=	mv_enc_aes_cbc,
-			.decrypt	=	mv_dec_aes_cbc,
-		},
-	},
-};
-
-static struct ahash_alg mv_sha1_alg = {
-	.init = mv_hash_init,
-	.update = mv_hash_update,
-	.final = mv_hash_final,
-	.finup = mv_hash_finup,
-	.digest = mv_hash_digest,
-	.halg = {
-		 .digestsize = SHA1_DIGEST_SIZE,
-		 .base = {
-			  .cra_name = "sha1",
-			  .cra_driver_name = "mv-sha1",
-			  .cra_priority = 300,
-			  .cra_flags =
-			  CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY |
-			  CRYPTO_ALG_NEED_FALLBACK,
-			  .cra_blocksize = SHA1_BLOCK_SIZE,
-			  .cra_ctxsize = sizeof(struct mv_tfm_hash_ctx),
-			  .cra_init = mv_cra_hash_sha1_init,
-			  .cra_exit = mv_cra_hash_exit,
-			  .cra_module = THIS_MODULE,
-			  }
-		 }
-};
-
-static struct ahash_alg mv_hmac_sha1_alg = {
-	.init = mv_hash_init,
-	.update = mv_hash_update,
-	.final = mv_hash_final,
-	.finup = mv_hash_finup,
-	.digest = mv_hash_digest,
-	.setkey = mv_hash_setkey,
-	.halg = {
-		 .digestsize = SHA1_DIGEST_SIZE,
-		 .base = {
-			  .cra_name = "hmac(sha1)",
-			  .cra_driver_name = "mv-hmac-sha1",
-			  .cra_priority = 300,
-			  .cra_flags =
-			  CRYPTO_ALG_ASYNC | CRYPTO_ALG_KERN_DRIVER_ONLY |
-			  CRYPTO_ALG_NEED_FALLBACK,
-			  .cra_blocksize = SHA1_BLOCK_SIZE,
-			  .cra_ctxsize = sizeof(struct mv_tfm_hash_ctx),
-			  .cra_init = mv_cra_hash_hmac_sha1_init,
-			  .cra_exit = mv_cra_hash_exit,
-			  .cra_module = THIS_MODULE,
-			  }
-		 }
-};
-
-static int mv_cesa_get_sram(struct platform_device *pdev,
-			    struct crypto_priv *cp)
-{
-	struct resource *res;
-	u32 sram_size = MV_CESA_DEFAULT_SRAM_SIZE;
-
-	of_property_read_u32(pdev->dev.of_node, "marvell,crypto-sram-size",
-			     &sram_size);
-
-	cp->sram_size = sram_size;
-	cp->sram_pool = of_gen_pool_get(pdev->dev.of_node,
-					"marvell,crypto-srams", 0);
-	if (cp->sram_pool) {
-		cp->sram = gen_pool_dma_alloc(cp->sram_pool, sram_size,
-					      &cp->sram_dma);
-		if (cp->sram)
-			return 0;
-
-		return -ENOMEM;
-	}
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-					   "sram");
-	if (!res || resource_size(res) < cp->sram_size)
-		return -EINVAL;
-
-	cp->sram = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(cp->sram))
-		return PTR_ERR(cp->sram);
-
-	return 0;
-}
-
-static int mv_probe(struct platform_device *pdev)
-{
-	struct crypto_priv *cp;
-	struct resource *res;
-	int irq;
-	int ret;
-
-	if (cpg) {
-		printk(KERN_ERR MV_CESA "Second crypto dev?\n");
-		return -EEXIST;
-	}
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
-	if (!res)
-		return -ENXIO;
-
-	cp = devm_kzalloc(&pdev->dev, sizeof(*cp), GFP_KERNEL);
-	if (!cp)
-		return -ENOMEM;
-
-	spin_lock_init(&cp->lock);
-	crypto_init_queue(&cp->queue, 50);
-	cp->reg = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(cp->reg)) {
-		ret = PTR_ERR(cp->reg);
-		goto err;
-	}
-
-	ret = mv_cesa_get_sram(pdev, cp);
-	if (ret)
-		goto err;
-
-	cp->max_req_size = cp->sram_size - SRAM_CFG_SPACE;
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0) {
-		ret = irq;
-		goto err;
-	}
-	cp->irq = irq;
-
-	platform_set_drvdata(pdev, cp);
-	cpg = cp;
-
-	cp->queue_th = kthread_run(queue_manag, cp, "mv_crypto");
-	if (IS_ERR(cp->queue_th)) {
-		ret = PTR_ERR(cp->queue_th);
-		goto err;
-	}
-
-	ret = request_irq(irq, crypto_int, 0, dev_name(&pdev->dev),
-			cp);
-	if (ret)
-		goto err_thread;
-
-	/* Not all platforms can gate the clock, so it is not
-	   an error if the clock does not exists. */
-	cp->clk = clk_get(&pdev->dev, NULL);
-	if (!IS_ERR(cp->clk))
-		clk_prepare_enable(cp->clk);
-
-	writel(0, cpg->reg + SEC_ACCEL_INT_STATUS);
-	writel(SEC_INT_ACCEL0_DONE, cpg->reg + SEC_ACCEL_INT_MASK);
-	writel(SEC_CFG_STOP_DIG_ERR, cpg->reg + SEC_ACCEL_CFG);
-	writel(SRAM_CONFIG, cpg->reg + SEC_ACCEL_DESC_P0);
-
-	ret = crypto_register_alg(&mv_aes_alg_ecb);
-	if (ret) {
-		printk(KERN_WARNING MV_CESA
-		       "Could not register aes-ecb driver\n");
-		goto err_irq;
-	}
-
-	ret = crypto_register_alg(&mv_aes_alg_cbc);
-	if (ret) {
-		printk(KERN_WARNING MV_CESA
-		       "Could not register aes-cbc driver\n");
-		goto err_unreg_ecb;
-	}
-
-	ret = crypto_register_ahash(&mv_sha1_alg);
-	if (ret == 0)
-		cpg->has_sha1 = 1;
-	else
-		printk(KERN_WARNING MV_CESA "Could not register sha1 driver\n");
-
-	ret = crypto_register_ahash(&mv_hmac_sha1_alg);
-	if (ret == 0) {
-		cpg->has_hmac_sha1 = 1;
-	} else {
-		printk(KERN_WARNING MV_CESA
-		       "Could not register hmac-sha1 driver\n");
-	}
-
-	return 0;
-err_unreg_ecb:
-	crypto_unregister_alg(&mv_aes_alg_ecb);
-err_irq:
-	free_irq(irq, cp);
-	if (!IS_ERR(cp->clk)) {
-		clk_disable_unprepare(cp->clk);
-		clk_put(cp->clk);
-	}
-err_thread:
-	kthread_stop(cp->queue_th);
-err:
-	cpg = NULL;
-	return ret;
-}
-
-static int mv_remove(struct platform_device *pdev)
-{
-	struct crypto_priv *cp = platform_get_drvdata(pdev);
-
-	crypto_unregister_alg(&mv_aes_alg_ecb);
-	crypto_unregister_alg(&mv_aes_alg_cbc);
-	if (cp->has_sha1)
-		crypto_unregister_ahash(&mv_sha1_alg);
-	if (cp->has_hmac_sha1)
-		crypto_unregister_ahash(&mv_hmac_sha1_alg);
-	kthread_stop(cp->queue_th);
-	free_irq(cp->irq, cp);
-	memset(cp->sram, 0, cp->sram_size);
-
-	if (!IS_ERR(cp->clk)) {
-		clk_disable_unprepare(cp->clk);
-		clk_put(cp->clk);
-	}
-
-	cpg = NULL;
-	return 0;
-}
-
-static const struct of_device_id mv_cesa_of_match_table[] = {
-	{ .compatible = "marvell,orion-crypto", },
-	{ .compatible = "marvell,kirkwood-crypto", },
-	{ .compatible = "marvell,dove-crypto", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, mv_cesa_of_match_table);
-
-static struct platform_driver marvell_crypto = {
-	.probe		= mv_probe,
-	.remove		= mv_remove,
-	.driver		= {
-		.name	= "mv_crypto",
-		.of_match_table = mv_cesa_of_match_table,
-	},
-};
-MODULE_ALIAS("platform:mv_crypto");
-
-module_platform_driver(marvell_crypto);
-
-MODULE_AUTHOR("Sebastian Andrzej Siewior <sebastian@breakpoint.cc>");
-MODULE_DESCRIPTION("Support for Marvell's cryptographic engine");
-MODULE_LICENSE("GPL");
diff --git a/drivers/crypto/mv_cesa.h b/drivers/crypto/mv_cesa.h
deleted file mode 100644
index 9249d3ed184b..000000000000
--- a/drivers/crypto/mv_cesa.h
+++ /dev/null
@@ -1,150 +0,0 @@
-#ifndef __MV_CRYPTO_H__
-#define __MV_CRYPTO_H__
-
-#define DIGEST_INITIAL_VAL_A	0xdd00
-#define DIGEST_INITIAL_VAL_B	0xdd04
-#define DIGEST_INITIAL_VAL_C	0xdd08
-#define DIGEST_INITIAL_VAL_D	0xdd0c
-#define DIGEST_INITIAL_VAL_E	0xdd10
-#define DES_CMD_REG		0xdd58
-
-#define SEC_ACCEL_CMD		0xde00
-#define SEC_CMD_EN_SEC_ACCL0	(1 << 0)
-#define SEC_CMD_EN_SEC_ACCL1	(1 << 1)
-#define SEC_CMD_DISABLE_SEC	(1 << 2)
-
-#define SEC_ACCEL_DESC_P0	0xde04
-#define SEC_DESC_P0_PTR(x)	(x)
-
-#define SEC_ACCEL_DESC_P1	0xde14
-#define SEC_DESC_P1_PTR(x)	(x)
-
-#define SEC_ACCEL_CFG		0xde08
-#define SEC_CFG_STOP_DIG_ERR	(1 << 0)
-#define SEC_CFG_CH0_W_IDMA	(1 << 7)
-#define SEC_CFG_CH1_W_IDMA	(1 << 8)
-#define SEC_CFG_ACT_CH0_IDMA	(1 << 9)
-#define SEC_CFG_ACT_CH1_IDMA	(1 << 10)
-
-#define SEC_ACCEL_STATUS	0xde0c
-#define SEC_ST_ACT_0		(1 << 0)
-#define SEC_ST_ACT_1		(1 << 1)
-
-/*
- * FPGA_INT_STATUS looks like a FPGA leftover and is documented only in Errata
- * 4.12. It looks like that it was part of an IRQ-controller in FPGA and
- * someone forgot to remove  it while switching to the core and moving to
- * SEC_ACCEL_INT_STATUS.
- */
-#define FPGA_INT_STATUS		0xdd68
-#define SEC_ACCEL_INT_STATUS	0xde20
-#define SEC_INT_AUTH_DONE	(1 << 0)
-#define SEC_INT_DES_E_DONE	(1 << 1)
-#define SEC_INT_AES_E_DONE	(1 << 2)
-#define SEC_INT_AES_D_DONE	(1 << 3)
-#define SEC_INT_ENC_DONE	(1 << 4)
-#define SEC_INT_ACCEL0_DONE	(1 << 5)
-#define SEC_INT_ACCEL1_DONE	(1 << 6)
-#define SEC_INT_ACC0_IDMA_DONE	(1 << 7)
-#define SEC_INT_ACC1_IDMA_DONE	(1 << 8)
-
-#define SEC_ACCEL_INT_MASK	0xde24
-
-#define AES_KEY_LEN	(8 * 4)
-
-struct sec_accel_config {
-
-	u32 config;
-#define CFG_OP_MAC_ONLY		0
-#define CFG_OP_CRYPT_ONLY	1
-#define CFG_OP_MAC_CRYPT	2
-#define CFG_OP_CRYPT_MAC	3
-#define CFG_MACM_MD5		(4 << 4)
-#define CFG_MACM_SHA1		(5 << 4)
-#define CFG_MACM_HMAC_MD5	(6 << 4)
-#define CFG_MACM_HMAC_SHA1	(7 << 4)
-#define CFG_ENCM_DES		(1 << 8)
-#define CFG_ENCM_3DES		(2 << 8)
-#define CFG_ENCM_AES		(3 << 8)
-#define CFG_DIR_ENC		(0 << 12)
-#define CFG_DIR_DEC		(1 << 12)
-#define CFG_ENC_MODE_ECB	(0 << 16)
-#define CFG_ENC_MODE_CBC	(1 << 16)
-#define CFG_3DES_EEE		(0 << 20)
-#define CFG_3DES_EDE		(1 << 20)
-#define CFG_AES_LEN_128		(0 << 24)
-#define CFG_AES_LEN_192		(1 << 24)
-#define CFG_AES_LEN_256		(2 << 24)
-#define CFG_NOT_FRAG		(0 << 30)
-#define CFG_FIRST_FRAG		(1 << 30)
-#define CFG_LAST_FRAG		(2 << 30)
-#define CFG_MID_FRAG		(3 << 30)
-
-	u32 enc_p;
-#define ENC_P_SRC(x)		(x)
-#define ENC_P_DST(x)		((x) << 16)
-
-	u32 enc_len;
-#define ENC_LEN(x)		(x)
-
-	u32 enc_key_p;
-#define ENC_KEY_P(x)		(x)
-
-	u32 enc_iv;
-#define ENC_IV_POINT(x)		((x) << 0)
-#define ENC_IV_BUF_POINT(x)	((x) << 16)
-
-	u32 mac_src_p;
-#define MAC_SRC_DATA_P(x)	(x)
-#define MAC_SRC_TOTAL_LEN(x)	((x) << 16)
-
-	u32 mac_digest;
-#define MAC_DIGEST_P(x)	(x)
-#define MAC_FRAG_LEN(x)	((x) << 16)
-	u32 mac_iv;
-#define MAC_INNER_IV_P(x)	(x)
-#define MAC_OUTER_IV_P(x)	((x) << 16)
-}__attribute__ ((packed));
-	/*
-	 * /-----------\ 0
-	 * | ACCEL CFG |	4 * 8
-	 * |-----------| 0x20
-	 * | CRYPT KEY |	8 * 4
-	 * |-----------| 0x40
-	 * |  IV   IN  |	4 * 4
-	 * |-----------| 0x40 (inplace)
-	 * |  IV BUF   |	4 * 4
-	 * |-----------| 0x80
-	 * |  DATA IN  |	16 * x (max ->max_req_size)
-	 * |-----------| 0x80 (inplace operation)
-	 * |  DATA OUT |	16 * x (max ->max_req_size)
-	 * \-----------/ SRAM size
-	 */
-
-	/* Hashing memory map:
-	 * /-----------\ 0
-	 * | ACCEL CFG |        4 * 8
-	 * |-----------| 0x20
-	 * | Inner IV  |        5 * 4
-	 * |-----------| 0x34
-	 * | Outer IV  |        5 * 4
-	 * |-----------| 0x48
-	 * | Output BUF|        5 * 4
-	 * |-----------| 0x80
-	 * |  DATA IN  |        64 * x (max ->max_req_size)
-	 * \-----------/ SRAM size
-	 */
-#define SRAM_CONFIG		0x00
-#define SRAM_DATA_KEY_P		0x20
-#define SRAM_DATA_IV		0x40
-#define SRAM_DATA_IV_BUF	0x40
-#define SRAM_DATA_IN_START	0x80
-#define SRAM_DATA_OUT_START	0x80
-
-#define SRAM_HMAC_IV_IN		0x20
-#define SRAM_HMAC_IV_OUT	0x34
-#define SRAM_DIGEST_BUF		0x48
-
-#define SRAM_CFG_SPACE		0x80
-
-#endif
diff --git a/drivers/crypto/n2_asm.S b/drivers/crypto/n2_asm.S
index f7c793745a1e..9a67dbf340f4 100644
--- a/drivers/crypto/n2_asm.S
+++ b/drivers/crypto/n2_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* n2_asm.S: Hypervisor calls for NCS support.
  *
  * Copyright (C) 2009 David S. Miller <davem@davemloft.net>
diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c
index a9fd8b9e86cd..48de52cf2ecc 100644
--- a/drivers/crypto/n2_core.c
+++ b/drivers/crypto/n2_core.c
@@ -1962,10 +1962,8 @@ static struct n2_crypto *alloc_n2cp(void)
 
 static void free_n2cp(struct n2_crypto *np)
 {
-	if (np->cwq_info.ino_table) {
-		kfree(np->cwq_info.ino_table);
-		np->cwq_info.ino_table = NULL;
-	}
+	kfree(np->cwq_info.ino_table);
+	np->cwq_info.ino_table = NULL;
 
 	kfree(np);
 }
@@ -2079,10 +2077,8 @@ static struct n2_mau *alloc_ncp(void)
 
 static void free_ncp(struct n2_mau *mp)
 {
-	if (mp->mau_info.ino_table) {
-		kfree(mp->mau_info.ino_table);
-		mp->mau_info.ino_table = NULL;
-	}
+	kfree(mp->mau_info.ino_table);
+	mp->mau_info.ino_table = NULL;
 
 	kfree(mp);
 }
diff --git a/drivers/crypto/n2_core.h b/drivers/crypto/n2_core.h
index 4bcbbeae98f5..2406763b0306 100644
--- a/drivers/crypto/n2_core.h
+++ b/drivers/crypto/n2_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _N2_CORE_H
 #define _N2_CORE_H
 
diff --git a/drivers/crypto/nx/Makefile b/drivers/crypto/nx/Makefile
index b727821c8ed4..015155da59c2 100644
--- a/drivers/crypto/nx/Makefile
+++ b/drivers/crypto/nx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_NX_ENCRYPT) += nx-crypto.o
 nx-crypto-objs := nx.o \
 		  nx_debugfs.o \
diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c
index 874ddf5e9087..0f20f5ec9617 100644
--- a/drivers/crypto/nx/nx-842-powernv.c
+++ b/drivers/crypto/nx/nx-842-powernv.c
@@ -193,7 +193,7 @@ static int wait_for_csb(struct nx842_workmem *wmem,
 	ktime_t start = wmem->start, now = ktime_get();
 	ktime_t timeout = ktime_add_ms(start, CSB_WAIT_MAX);
 
-	while (!(ACCESS_ONCE(csb->flags) & CSB_V)) {
+	while (!(READ_ONCE(csb->flags) & CSB_V)) {
 		cpu_relax();
 		now = ktime_get();
 		if (ktime_after(now, timeout))
diff --git a/drivers/crypto/nx/nx-842-pseries.c b/drivers/crypto/nx/nx-842-pseries.c
index cddc6d8b55d9..bf52cd1d7fca 100644
--- a/drivers/crypto/nx/nx-842-pseries.c
+++ b/drivers/crypto/nx/nx-842-pseries.c
@@ -1082,7 +1082,7 @@ static int nx842_remove(struct vio_dev *viodev)
 	return 0;
 }
 
-static struct vio_device_id nx842_vio_driver_ids[] = {
+static const struct vio_device_id nx842_vio_driver_ids[] = {
 	{"ibm,compression-v1", "ibm,compression"},
 	{"", ""},
 };
diff --git a/drivers/crypto/nx/nx-842.h b/drivers/crypto/nx/nx-842.h
index bb2f31792683..b66f19ac600f 100644
--- a/drivers/crypto/nx/nx-842.h
+++ b/drivers/crypto/nx/nx-842.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __NX_842_H__
 #define __NX_842_H__
diff --git a/drivers/crypto/nx/nx-aes-gcm.c b/drivers/crypto/nx/nx-aes-gcm.c
index abd465f479c4..a810596b97c2 100644
--- a/drivers/crypto/nx/nx-aes-gcm.c
+++ b/drivers/crypto/nx/nx-aes-gcm.c
@@ -22,6 +22,7 @@
 #include <crypto/internal/aead.h>
 #include <crypto/aes.h>
 #include <crypto/algapi.h>
+#include <crypto/gcm.h>
 #include <crypto/scatterwalk.h>
 #include <linux/module.h>
 #include <linux/types.h>
@@ -433,7 +434,7 @@ static int gcm_aes_nx_encrypt(struct aead_request *req)
 	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
 	char *iv = rctx->iv;
 
-	memcpy(iv, req->iv, 12);
+	memcpy(iv, req->iv, GCM_AES_IV_SIZE);
 
 	return gcm_aes_nx_crypt(req, 1, req->assoclen);
 }
@@ -443,7 +444,7 @@ static int gcm_aes_nx_decrypt(struct aead_request *req)
 	struct nx_gcm_rctx *rctx = aead_request_ctx(req);
 	char *iv = rctx->iv;
 
-	memcpy(iv, req->iv, 12);
+	memcpy(iv, req->iv, GCM_AES_IV_SIZE);
 
 	return gcm_aes_nx_crypt(req, 0, req->assoclen);
 }
@@ -498,7 +499,7 @@ struct aead_alg nx_gcm_aes_alg = {
 	},
 	.init        = nx_crypto_ctx_aes_gcm_init,
 	.exit        = nx_crypto_ctx_aead_exit,
-	.ivsize      = 12,
+	.ivsize      = GCM_AES_IV_SIZE,
 	.maxauthsize = AES_BLOCK_SIZE,
 	.setkey      = gcm_aes_nx_set_key,
 	.encrypt     = gcm_aes_nx_encrypt,
@@ -516,7 +517,7 @@ struct aead_alg nx_gcm4106_aes_alg = {
 	},
 	.init        = nx_crypto_ctx_aes_gcm_init,
 	.exit        = nx_crypto_ctx_aead_exit,
-	.ivsize      = 8,
+	.ivsize      = GCM_RFC4106_IV_SIZE,
 	.maxauthsize = AES_BLOCK_SIZE,
 	.setkey      = gcm4106_aes_nx_set_key,
 	.setauthsize = gcm4106_aes_nx_setauthsize,
diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c
index 036057abb257..3a5e31be4764 100644
--- a/drivers/crypto/nx/nx.c
+++ b/drivers/crypto/nx/nx.c
@@ -833,7 +833,7 @@ static void __exit nx_fini(void)
 	vio_unregister_driver(&nx_driver.viodriver);
 }
 
-static struct vio_device_id nx_crypto_driver_ids[] = {
+static const struct vio_device_id nx_crypto_driver_ids[] = {
 	{ "ibm,sym-encryption-v1", "ibm,sym-encryption" },
 	{ "", "" }
 };
diff --git a/drivers/crypto/nx/nx.h b/drivers/crypto/nx/nx.h
index 9347878d4f30..c3e54af18645 100644
--- a/drivers/crypto/nx/nx.h
+++ b/drivers/crypto/nx/nx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __NX_H__
 #define __NX_H__
diff --git a/drivers/crypto/nx/nx_csbcpb.h b/drivers/crypto/nx/nx_csbcpb.h
index a304f956d6f8..493f8490ff94 100644
--- a/drivers/crypto/nx/nx_csbcpb.h
+++ b/drivers/crypto/nx/nx_csbcpb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __NX_CSBCPB_H__
 #define __NX_CSBCPB_H__
diff --git a/drivers/crypto/omap-aes-gcm.c b/drivers/crypto/omap-aes-gcm.c
index 7d4f8a4be6d8..0cc3b65d7162 100644
--- a/drivers/crypto/omap-aes-gcm.c
+++ b/drivers/crypto/omap-aes-gcm.c
@@ -18,6 +18,7 @@
 #include <linux/omap-dma.h>
 #include <linux/interrupt.h>
 #include <crypto/aes.h>
+#include <crypto/gcm.h>
 #include <crypto/scatterwalk.h>
 #include <crypto/skcipher.h>
 #include <crypto/internal/aead.h>
@@ -186,7 +187,7 @@ static int do_encrypt_iv(struct aead_request *req, u32 *tag, u32 *iv)
 	sk_req = skcipher_request_alloc(ctx->ctr, GFP_KERNEL);
 	if (!sk_req) {
 		pr_err("skcipher: Failed to allocate request\n");
-		return -1;
+		return -ENOMEM;
 	}
 
 	init_completion(&result.completion);
@@ -214,7 +215,7 @@ static int do_encrypt_iv(struct aead_request *req, u32 *tag, u32 *iv)
 		}
 		/* fall through */
 	default:
-		pr_err("Encryption of IV failed for GCM mode");
+		pr_err("Encryption of IV failed for GCM mode\n");
 		break;
 	}
 
@@ -311,7 +312,7 @@ static int omap_aes_gcm_crypt(struct aead_request *req, unsigned long mode)
 	int err, assoclen;
 
 	memset(rctx->auth_tag, 0, sizeof(rctx->auth_tag));
-	memcpy(rctx->iv + 12, &counter, 4);
+	memcpy(rctx->iv + GCM_AES_IV_SIZE, &counter, 4);
 
 	err = do_encrypt_iv(req, (u32 *)rctx->auth_tag, (u32 *)rctx->iv);
 	if (err)
@@ -339,7 +340,7 @@ int omap_aes_gcm_encrypt(struct aead_request *req)
 {
 	struct omap_aes_reqctx *rctx = aead_request_ctx(req);
 
-	memcpy(rctx->iv, req->iv, 12);
+	memcpy(rctx->iv, req->iv, GCM_AES_IV_SIZE);
 	return omap_aes_gcm_crypt(req, FLAGS_ENCRYPT | FLAGS_GCM);
 }
 
@@ -347,7 +348,7 @@ int omap_aes_gcm_decrypt(struct aead_request *req)
 {
 	struct omap_aes_reqctx *rctx = aead_request_ctx(req);
 
-	memcpy(rctx->iv, req->iv, 12);
+	memcpy(rctx->iv, req->iv, GCM_AES_IV_SIZE);
 	return omap_aes_gcm_crypt(req, FLAGS_GCM);
 }
 
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index c376a3ee7c2c..fbec0a2e76dd 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -35,6 +35,7 @@
 #include <linux/interrupt.h>
 #include <crypto/scatterwalk.h>
 #include <crypto/aes.h>
+#include <crypto/gcm.h>
 #include <crypto/engine.h>
 #include <crypto/internal/skcipher.h>
 #include <crypto/internal/aead.h>
@@ -767,7 +768,7 @@ static struct aead_alg algs_aead_gcm[] = {
 	},
 	.init		= omap_aes_gcm_cra_init,
 	.exit		= omap_aes_gcm_cra_exit,
-	.ivsize		= 12,
+	.ivsize		= GCM_AES_IV_SIZE,
 	.maxauthsize	= AES_BLOCK_SIZE,
 	.setkey		= omap_aes_gcm_setkey,
 	.encrypt	= omap_aes_gcm_encrypt,
@@ -788,7 +789,7 @@ static struct aead_alg algs_aead_gcm[] = {
 	.init		= omap_aes_gcm_cra_init,
 	.exit		= omap_aes_gcm_cra_exit,
 	.maxauthsize	= AES_BLOCK_SIZE,
-	.ivsize		= 8,
+	.ivsize		= GCM_RFC4106_IV_SIZE,
 	.setkey		= omap_aes_4106gcm_setkey,
 	.encrypt	= omap_aes_4106gcm_encrypt,
 	.decrypt	= omap_aes_4106gcm_decrypt,
@@ -974,11 +975,10 @@ static int omap_aes_get_res_of(struct omap_aes_dev *dd,
 		struct device *dev, struct resource *res)
 {
 	struct device_node *node = dev->of_node;
-	const struct of_device_id *match;
 	int err = 0;
 
-	match = of_match_device(of_match_ptr(omap_aes_of_match), dev);
-	if (!match) {
+	dd->pdata = of_device_get_match_data(dev);
+	if (!dd->pdata) {
 		dev_err(dev, "no compatible OF match\n");
 		err = -EINVAL;
 		goto err;
@@ -991,8 +991,6 @@ static int omap_aes_get_res_of(struct omap_aes_dev *dd,
 		goto err;
 	}
 
-	dd->pdata = match->data;
-
 err:
 	return err;
 }
diff --git a/drivers/crypto/omap-des.c b/drivers/crypto/omap-des.c
index d37c9506c36c..ebc5c0f11f03 100644
--- a/drivers/crypto/omap-des.c
+++ b/drivers/crypto/omap-des.c
@@ -928,16 +928,13 @@ MODULE_DEVICE_TABLE(of, omap_des_of_match);
 static int omap_des_get_of(struct omap_des_dev *dd,
 		struct platform_device *pdev)
 {
-	const struct of_device_id *match;
 
-	match = of_match_device(of_match_ptr(omap_des_of_match), &pdev->dev);
-	if (!match) {
+	dd->pdata = of_device_get_match_data(&pdev->dev);
+	if (!dd->pdata) {
 		dev_err(&pdev->dev, "no compatible OF match\n");
 		return -EINVAL;
 	}
 
-	dd->pdata = match->data;
-
 	return 0;
 }
 #else
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index c40ac30ec002..86b89ace836f 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -1944,11 +1944,10 @@ static int omap_sham_get_res_of(struct omap_sham_dev *dd,
 		struct device *dev, struct resource *res)
 {
 	struct device_node *node = dev->of_node;
-	const struct of_device_id *match;
 	int err = 0;
 
-	match = of_match_device(of_match_ptr(omap_sham_of_match), dev);
-	if (!match) {
+	dd->pdata = of_device_get_match_data(dev);
+	if (!dd->pdata) {
 		dev_err(dev, "no compatible OF match\n");
 		err = -EINVAL;
 		goto err;
@@ -1968,8 +1967,6 @@ static int omap_sham_get_res_of(struct omap_sham_dev *dd,
 		goto err;
 	}
 
-	dd->pdata = match->data;
-
 err:
 	return err;
 }
diff --git a/drivers/crypto/padlock-aes.c b/drivers/crypto/padlock-aes.c
index b3869748cc6b..4b6642a25df5 100644
--- a/drivers/crypto/padlock-aes.c
+++ b/drivers/crypto/padlock-aes.c
@@ -482,7 +482,7 @@ static struct crypto_alg cbc_aes_alg = {
 	}
 };
 
-static struct x86_cpu_id padlock_cpu_id[] = {
+static const struct x86_cpu_id padlock_cpu_id[] = {
 	X86_FEATURE_MATCH(X86_FEATURE_XCRYPT),
 	{}
 };
diff --git a/drivers/crypto/padlock-sha.c b/drivers/crypto/padlock-sha.c
index bc72d20c32c3..d32c79328876 100644
--- a/drivers/crypto/padlock-sha.c
+++ b/drivers/crypto/padlock-sha.c
@@ -509,7 +509,7 @@ static struct shash_alg sha256_alg_nano = {
 	}
 };
 
-static struct x86_cpu_id padlock_sha_ids[] = {
+static const struct x86_cpu_id padlock_sha_ids[] = {
 	X86_FEATURE_MATCH(X86_FEATURE_PHE),
 	{}
 };
diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c
index b6f14844702e..5a6dc53b2b9d 100644
--- a/drivers/crypto/picoxcell_crypto.c
+++ b/drivers/crypto/picoxcell_crypto.c
@@ -1125,9 +1125,9 @@ static irqreturn_t spacc_spacc_irq(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-static void spacc_packet_timeout(unsigned long data)
+static void spacc_packet_timeout(struct timer_list *t)
 {
-	struct spacc_engine *engine = (struct spacc_engine *)data;
+	struct spacc_engine *engine = from_timer(engine, t, packet_timeout);
 
 	spacc_process_done(engine);
 }
@@ -1714,8 +1714,7 @@ static int spacc_probe(struct platform_device *pdev)
 	writel(SPA_IRQ_EN_STAT_EN | SPA_IRQ_EN_GLBL_EN,
 	       engine->regs + SPA_IRQ_EN_REG_OFFSET);
 
-	setup_timer(&engine->packet_timeout, spacc_packet_timeout,
-		    (unsigned long)engine);
+	timer_setup(&engine->packet_timeout, spacc_packet_timeout, 0);
 
 	INIT_LIST_HEAD(&engine->pending);
 	INIT_LIST_HEAD(&engine->completed);
diff --git a/drivers/crypto/qat/Makefile b/drivers/crypto/qat/Makefile
index 8265106f1c8e..7dd15e751d02 100644
--- a/drivers/crypto/qat/Makefile
+++ b/drivers/crypto/qat/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_QAT) += qat_common/
 obj-$(CONFIG_CRYPTO_DEV_QAT_DH895xCC) += qat_dh895xcc/
 obj-$(CONFIG_CRYPTO_DEV_QAT_C3XXX) += qat_c3xxx/
diff --git a/drivers/crypto/qat/qat_common/Makefile b/drivers/crypto/qat/qat_common/Makefile
index 92fb6ffdc062..47a8e3d8b81a 100644
--- a/drivers/crypto/qat/qat_common/Makefile
+++ b/drivers/crypto/qat/qat_common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_QAT) += intel_qat.o
 intel_qat-objs := adf_cfg.o \
 	adf_isr.o \
diff --git a/drivers/crypto/qat/qat_common/adf_dev_mgr.c b/drivers/crypto/qat/qat_common/adf_dev_mgr.c
index 8afac52677a6..2d06409bd3c4 100644
--- a/drivers/crypto/qat/qat_common/adf_dev_mgr.c
+++ b/drivers/crypto/qat/qat_common/adf_dev_mgr.c
@@ -228,11 +228,8 @@ int adf_devmgr_add_dev(struct adf_accel_dev *accel_dev,
 		list_add_tail(&map->list, &vfs_table);
 	} else if (accel_dev->is_vf && pf) {
 		/* VF on host */
-		struct adf_accel_vf_info *vf_info;
 		struct vf_id_map *map;
 
-		vf_info = pf->pf.vf_info + adf_get_vf_id(accel_dev);
-
 		map = adf_find_vf(adf_get_vf_num(accel_dev));
 		if (map) {
 			struct vf_id_map *next;
diff --git a/drivers/crypto/qat/qat_common/qat_asym_algs.c b/drivers/crypto/qat/qat_common/qat_asym_algs.c
index 6f5dd68449c6..13c52d6bf630 100644
--- a/drivers/crypto/qat/qat_common/qat_asym_algs.c
+++ b/drivers/crypto/qat/qat_common/qat_asym_algs.c
@@ -443,9 +443,6 @@ static int qat_dh_set_params(struct qat_dh_ctx *ctx, struct dh *params)
 	struct qat_crypto_instance *inst = ctx->inst;
 	struct device *dev = &GET_DEV(inst->accel_dev);
 
-	if (unlikely(!params->p || !params->g))
-		return -EINVAL;
-
 	if (qat_dh_check_params_length(params->p_size << 3))
 		return -EINVAL;
 
@@ -462,11 +459,8 @@ static int qat_dh_set_params(struct qat_dh_ctx *ctx, struct dh *params)
 	}
 
 	ctx->g = dma_zalloc_coherent(dev, ctx->p_size, &ctx->dma_g, GFP_KERNEL);
-	if (!ctx->g) {
-		dma_free_coherent(dev, ctx->p_size, ctx->p, ctx->dma_p);
-		ctx->p = NULL;
+	if (!ctx->g)
 		return -ENOMEM;
-	}
 	memcpy(ctx->g + (ctx->p_size - params->g_size), params->g,
 	       params->g_size);
 
@@ -507,18 +501,22 @@ static int qat_dh_set_secret(struct crypto_kpp *tfm, const void *buf,
 
 	ret = qat_dh_set_params(ctx, &params);
 	if (ret < 0)
-		return ret;
+		goto err_clear_ctx;
 
 	ctx->xa = dma_zalloc_coherent(dev, ctx->p_size, &ctx->dma_xa,
 				      GFP_KERNEL);
 	if (!ctx->xa) {
-		qat_dh_clear_ctx(dev, ctx);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_clear_ctx;
 	}
 	memcpy(ctx->xa + (ctx->p_size - params.key_size), params.key,
 	       params.key_size);
 
 	return 0;
+
+err_clear_ctx:
+	qat_dh_clear_ctx(dev, ctx);
+	return ret;
 }
 
 static unsigned int qat_dh_max_size(struct crypto_kpp *tfm)
diff --git a/drivers/crypto/qat/qat_common/qat_uclo.c b/drivers/crypto/qat/qat_common/qat_uclo.c
index e2454d90d949..98d22c2096e3 100644
--- a/drivers/crypto/qat/qat_common/qat_uclo.c
+++ b/drivers/crypto/qat/qat_common/qat_uclo.c
@@ -567,26 +567,26 @@ qat_uclo_check_image_compat(struct icp_qat_uof_encap_obj *encap_uof_obj,
 		       code_page->imp_expr_tab_offset);
 	if (uc_var_tab->entry_num || imp_var_tab->entry_num ||
 	    imp_expr_tab->entry_num) {
-		pr_err("QAT: UOF can't contain imported variable to be parsed");
+		pr_err("QAT: UOF can't contain imported variable to be parsed\n");
 		return -EINVAL;
 	}
 	neigh_reg_tab = (struct icp_qat_uof_objtable *)
 			(encap_uof_obj->beg_uof +
 			code_page->neigh_reg_tab_offset);
 	if (neigh_reg_tab->entry_num) {
-		pr_err("QAT: UOF can't contain shared control store feature");
+		pr_err("QAT: UOF can't contain shared control store feature\n");
 		return -EINVAL;
 	}
 	if (image->numpages > 1) {
-		pr_err("QAT: UOF can't contain multiple pages");
+		pr_err("QAT: UOF can't contain multiple pages\n");
 		return -EINVAL;
 	}
 	if (ICP_QAT_SHARED_USTORE_MODE(image->ae_mode)) {
-		pr_err("QAT: UOF can't use shared control store feature");
+		pr_err("QAT: UOF can't use shared control store feature\n");
 		return -EFAULT;
 	}
 	if (RELOADABLE_CTX_SHARED_MODE(image->ae_mode)) {
-		pr_err("QAT: UOF can't use reloadable feature");
+		pr_err("QAT: UOF can't use reloadable feature\n");
 		return -EFAULT;
 	}
 	return 0;
@@ -702,7 +702,7 @@ static int qat_uclo_map_ae(struct icp_qat_fw_loader_handle *handle, int max_ae)
 		}
 	}
 	if (!mflag) {
-		pr_err("QAT: uimage uses AE not set");
+		pr_err("QAT: uimage uses AE not set\n");
 		return -EINVAL;
 	}
 	return 0;
@@ -791,6 +791,7 @@ static int qat_uclo_init_reg(struct icp_qat_fw_loader_handle *handle,
 	case ICP_GPA_ABS:
 	case ICP_GPB_ABS:
 		ctx_mask = 0;
+		/* fall through */
 	case ICP_GPA_REL:
 	case ICP_GPB_REL:
 		return qat_hal_init_gpr(handle, ae, ctx_mask, reg_type,
@@ -800,6 +801,7 @@ static int qat_uclo_init_reg(struct icp_qat_fw_loader_handle *handle,
 	case ICP_SR_RD_ABS:
 	case ICP_DR_RD_ABS:
 		ctx_mask = 0;
+		/* fall through */
 	case ICP_SR_REL:
 	case ICP_DR_REL:
 	case ICP_SR_RD_REL:
@@ -809,6 +811,7 @@ static int qat_uclo_init_reg(struct icp_qat_fw_loader_handle *handle,
 	case ICP_SR_WR_ABS:
 	case ICP_DR_WR_ABS:
 		ctx_mask = 0;
+		/* fall through */
 	case ICP_SR_WR_REL:
 	case ICP_DR_WR_REL:
 		return qat_hal_init_wr_xfer(handle, ae, ctx_mask, reg_type,
diff --git a/drivers/crypto/qce/Makefile b/drivers/crypto/qce/Makefile
index 348dc3173afa..19a7f899acff 100644
--- a/drivers/crypto/qce/Makefile
+++ b/drivers/crypto/qce/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_QCE) += qcrypto.o
 qcrypto-objs := core.o \
 		common.o \
diff --git a/drivers/crypto/qce/ablkcipher.c b/drivers/crypto/qce/ablkcipher.c
index b04b42f48366..ea4d96bf47e8 100644
--- a/drivers/crypto/qce/ablkcipher.c
+++ b/drivers/crypto/qce/ablkcipher.c
@@ -248,10 +248,7 @@ static int qce_ablkcipher_init(struct crypto_tfm *tfm)
 	ctx->fallback = crypto_alloc_skcipher(crypto_tfm_alg_name(tfm), 0,
 					      CRYPTO_ALG_ASYNC |
 					      CRYPTO_ALG_NEED_FALLBACK);
-	if (IS_ERR(ctx->fallback))
-		return PTR_ERR(ctx->fallback);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(ctx->fallback);
 }
 
 static void qce_ablkcipher_exit(struct crypto_tfm *tfm)
diff --git a/drivers/crypto/qce/sha.c b/drivers/crypto/qce/sha.c
index 47e114ac09d0..53227d70d397 100644
--- a/drivers/crypto/qce/sha.c
+++ b/drivers/crypto/qce/sha.c
@@ -349,28 +349,12 @@ static int qce_ahash_digest(struct ahash_request *req)
 	return qce->async_req_enqueue(tmpl->qce, &req->base);
 }
 
-struct qce_ahash_result {
-	struct completion completion;
-	int error;
-};
-
-static void qce_digest_complete(struct crypto_async_request *req, int error)
-{
-	struct qce_ahash_result *result = req->data;
-
-	if (error == -EINPROGRESS)
-		return;
-
-	result->error = error;
-	complete(&result->completion);
-}
-
 static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
 				 unsigned int keylen)
 {
 	unsigned int digestsize = crypto_ahash_digestsize(tfm);
 	struct qce_sha_ctx *ctx = crypto_tfm_ctx(&tfm->base);
-	struct qce_ahash_result result;
+	struct crypto_wait wait;
 	struct ahash_request *req;
 	struct scatterlist sg;
 	unsigned int blocksize;
@@ -405,9 +389,9 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
 		goto err_free_ahash;
 	}
 
-	init_completion(&result.completion);
+	crypto_init_wait(&wait);
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   qce_digest_complete, &result);
+				   crypto_req_done, &wait);
 	crypto_ahash_clear_flags(ahash_tfm, ~0);
 
 	buf = kzalloc(keylen + QCE_MAX_ALIGN_SIZE, GFP_KERNEL);
@@ -420,13 +404,7 @@ static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
 	sg_init_one(&sg, buf, keylen);
 	ahash_request_set_crypt(req, &sg, ctx->authkey, keylen);
 
-	ret = crypto_ahash_digest(req);
-	if (ret == -EINPROGRESS || ret == -EBUSY) {
-		ret = wait_for_completion_interruptible(&result.completion);
-		if (!ret)
-			ret = result.error;
-	}
-
+	ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
 	if (ret)
 		crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
 
diff --git a/drivers/crypto/rockchip/rk3288_crypto.h b/drivers/crypto/rockchip/rk3288_crypto.h
index ab6a1b4c40f0..d5fb4013fb42 100644
--- a/drivers/crypto/rockchip/rk3288_crypto.h
+++ b/drivers/crypto/rockchip/rk3288_crypto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RK3288_CRYPTO_H__
 #define __RK3288_CRYPTO_H__
 
diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c
index 7ac657f46d15..142c6020cec7 100644
--- a/drivers/crypto/s5p-sss.c
+++ b/drivers/crypto/s5p-sss.c
@@ -1,14 +1,16 @@
 /*
  * Cryptographic API.
  *
- * Support for Samsung S5PV210 HW acceleration.
+ * Support for Samsung S5PV210 and Exynos HW acceleration.
  *
  * Copyright (C) 2011 NetUP Inc. All rights reserved.
+ * Copyright (c) 2017 Samsung Electronics Co., Ltd. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as published
  * by the Free Software Foundation.
  *
+ * Hash part based on omap-sham.c driver.
  */
 
 #include <linux/clk.h>
@@ -30,98 +32,112 @@
 #include <crypto/algapi.h>
 #include <crypto/scatterwalk.h>
 
-#define _SBF(s, v)                      ((v) << (s))
+#include <crypto/hash.h>
+#include <crypto/md5.h>
+#include <crypto/sha.h>
+#include <crypto/internal/hash.h>
+
+#define _SBF(s, v)			((v) << (s))
 
 /* Feed control registers */
-#define SSS_REG_FCINTSTAT               0x0000
-#define SSS_FCINTSTAT_BRDMAINT          BIT(3)
-#define SSS_FCINTSTAT_BTDMAINT          BIT(2)
-#define SSS_FCINTSTAT_HRDMAINT          BIT(1)
-#define SSS_FCINTSTAT_PKDMAINT          BIT(0)
-
-#define SSS_REG_FCINTENSET              0x0004
-#define SSS_FCINTENSET_BRDMAINTENSET    BIT(3)
-#define SSS_FCINTENSET_BTDMAINTENSET    BIT(2)
-#define SSS_FCINTENSET_HRDMAINTENSET    BIT(1)
-#define SSS_FCINTENSET_PKDMAINTENSET    BIT(0)
-
-#define SSS_REG_FCINTENCLR              0x0008
-#define SSS_FCINTENCLR_BRDMAINTENCLR    BIT(3)
-#define SSS_FCINTENCLR_BTDMAINTENCLR    BIT(2)
-#define SSS_FCINTENCLR_HRDMAINTENCLR    BIT(1)
-#define SSS_FCINTENCLR_PKDMAINTENCLR    BIT(0)
-
-#define SSS_REG_FCINTPEND               0x000C
-#define SSS_FCINTPEND_BRDMAINTP         BIT(3)
-#define SSS_FCINTPEND_BTDMAINTP         BIT(2)
-#define SSS_FCINTPEND_HRDMAINTP         BIT(1)
-#define SSS_FCINTPEND_PKDMAINTP         BIT(0)
-
-#define SSS_REG_FCFIFOSTAT              0x0010
-#define SSS_FCFIFOSTAT_BRFIFOFUL        BIT(7)
-#define SSS_FCFIFOSTAT_BRFIFOEMP        BIT(6)
-#define SSS_FCFIFOSTAT_BTFIFOFUL        BIT(5)
-#define SSS_FCFIFOSTAT_BTFIFOEMP        BIT(4)
-#define SSS_FCFIFOSTAT_HRFIFOFUL        BIT(3)
-#define SSS_FCFIFOSTAT_HRFIFOEMP        BIT(2)
-#define SSS_FCFIFOSTAT_PKFIFOFUL        BIT(1)
-#define SSS_FCFIFOSTAT_PKFIFOEMP        BIT(0)
-
-#define SSS_REG_FCFIFOCTRL              0x0014
-#define SSS_FCFIFOCTRL_DESSEL           BIT(2)
-#define SSS_HASHIN_INDEPENDENT          _SBF(0, 0x00)
-#define SSS_HASHIN_CIPHER_INPUT         _SBF(0, 0x01)
-#define SSS_HASHIN_CIPHER_OUTPUT        _SBF(0, 0x02)
-
-#define SSS_REG_FCBRDMAS                0x0020
-#define SSS_REG_FCBRDMAL                0x0024
-#define SSS_REG_FCBRDMAC                0x0028
-#define SSS_FCBRDMAC_BYTESWAP           BIT(1)
-#define SSS_FCBRDMAC_FLUSH              BIT(0)
-
-#define SSS_REG_FCBTDMAS                0x0030
-#define SSS_REG_FCBTDMAL                0x0034
-#define SSS_REG_FCBTDMAC                0x0038
-#define SSS_FCBTDMAC_BYTESWAP           BIT(1)
-#define SSS_FCBTDMAC_FLUSH              BIT(0)
-
-#define SSS_REG_FCHRDMAS                0x0040
-#define SSS_REG_FCHRDMAL                0x0044
-#define SSS_REG_FCHRDMAC                0x0048
-#define SSS_FCHRDMAC_BYTESWAP           BIT(1)
-#define SSS_FCHRDMAC_FLUSH              BIT(0)
-
-#define SSS_REG_FCPKDMAS                0x0050
-#define SSS_REG_FCPKDMAL                0x0054
-#define SSS_REG_FCPKDMAC                0x0058
-#define SSS_FCPKDMAC_BYTESWAP           BIT(3)
-#define SSS_FCPKDMAC_DESCEND            BIT(2)
-#define SSS_FCPKDMAC_TRANSMIT           BIT(1)
-#define SSS_FCPKDMAC_FLUSH              BIT(0)
-
-#define SSS_REG_FCPKDMAO                0x005C
+#define SSS_REG_FCINTSTAT		0x0000
+#define SSS_FCINTSTAT_HPARTINT		BIT(7)
+#define SSS_FCINTSTAT_HDONEINT		BIT(5)
+#define SSS_FCINTSTAT_BRDMAINT		BIT(3)
+#define SSS_FCINTSTAT_BTDMAINT		BIT(2)
+#define SSS_FCINTSTAT_HRDMAINT		BIT(1)
+#define SSS_FCINTSTAT_PKDMAINT		BIT(0)
+
+#define SSS_REG_FCINTENSET		0x0004
+#define SSS_FCINTENSET_HPARTINTENSET	BIT(7)
+#define SSS_FCINTENSET_HDONEINTENSET	BIT(5)
+#define SSS_FCINTENSET_BRDMAINTENSET	BIT(3)
+#define SSS_FCINTENSET_BTDMAINTENSET	BIT(2)
+#define SSS_FCINTENSET_HRDMAINTENSET	BIT(1)
+#define SSS_FCINTENSET_PKDMAINTENSET	BIT(0)
+
+#define SSS_REG_FCINTENCLR		0x0008
+#define SSS_FCINTENCLR_HPARTINTENCLR	BIT(7)
+#define SSS_FCINTENCLR_HDONEINTENCLR	BIT(5)
+#define SSS_FCINTENCLR_BRDMAINTENCLR	BIT(3)
+#define SSS_FCINTENCLR_BTDMAINTENCLR	BIT(2)
+#define SSS_FCINTENCLR_HRDMAINTENCLR	BIT(1)
+#define SSS_FCINTENCLR_PKDMAINTENCLR	BIT(0)
+
+#define SSS_REG_FCINTPEND		0x000C
+#define SSS_FCINTPEND_HPARTINTP		BIT(7)
+#define SSS_FCINTPEND_HDONEINTP		BIT(5)
+#define SSS_FCINTPEND_BRDMAINTP		BIT(3)
+#define SSS_FCINTPEND_BTDMAINTP		BIT(2)
+#define SSS_FCINTPEND_HRDMAINTP		BIT(1)
+#define SSS_FCINTPEND_PKDMAINTP		BIT(0)
+
+#define SSS_REG_FCFIFOSTAT		0x0010
+#define SSS_FCFIFOSTAT_BRFIFOFUL	BIT(7)
+#define SSS_FCFIFOSTAT_BRFIFOEMP	BIT(6)
+#define SSS_FCFIFOSTAT_BTFIFOFUL	BIT(5)
+#define SSS_FCFIFOSTAT_BTFIFOEMP	BIT(4)
+#define SSS_FCFIFOSTAT_HRFIFOFUL	BIT(3)
+#define SSS_FCFIFOSTAT_HRFIFOEMP	BIT(2)
+#define SSS_FCFIFOSTAT_PKFIFOFUL	BIT(1)
+#define SSS_FCFIFOSTAT_PKFIFOEMP	BIT(0)
+
+#define SSS_REG_FCFIFOCTRL		0x0014
+#define SSS_FCFIFOCTRL_DESSEL		BIT(2)
+#define SSS_HASHIN_INDEPENDENT		_SBF(0, 0x00)
+#define SSS_HASHIN_CIPHER_INPUT		_SBF(0, 0x01)
+#define SSS_HASHIN_CIPHER_OUTPUT	_SBF(0, 0x02)
+#define SSS_HASHIN_MASK			_SBF(0, 0x03)
+
+#define SSS_REG_FCBRDMAS		0x0020
+#define SSS_REG_FCBRDMAL		0x0024
+#define SSS_REG_FCBRDMAC		0x0028
+#define SSS_FCBRDMAC_BYTESWAP		BIT(1)
+#define SSS_FCBRDMAC_FLUSH		BIT(0)
+
+#define SSS_REG_FCBTDMAS		0x0030
+#define SSS_REG_FCBTDMAL		0x0034
+#define SSS_REG_FCBTDMAC		0x0038
+#define SSS_FCBTDMAC_BYTESWAP		BIT(1)
+#define SSS_FCBTDMAC_FLUSH		BIT(0)
+
+#define SSS_REG_FCHRDMAS		0x0040
+#define SSS_REG_FCHRDMAL		0x0044
+#define SSS_REG_FCHRDMAC		0x0048
+#define SSS_FCHRDMAC_BYTESWAP		BIT(1)
+#define SSS_FCHRDMAC_FLUSH		BIT(0)
+
+#define SSS_REG_FCPKDMAS		0x0050
+#define SSS_REG_FCPKDMAL		0x0054
+#define SSS_REG_FCPKDMAC		0x0058
+#define SSS_FCPKDMAC_BYTESWAP		BIT(3)
+#define SSS_FCPKDMAC_DESCEND		BIT(2)
+#define SSS_FCPKDMAC_TRANSMIT		BIT(1)
+#define SSS_FCPKDMAC_FLUSH		BIT(0)
+
+#define SSS_REG_FCPKDMAO		0x005C
 
 /* AES registers */
 #define SSS_REG_AES_CONTROL		0x00
-#define SSS_AES_BYTESWAP_DI             BIT(11)
-#define SSS_AES_BYTESWAP_DO             BIT(10)
-#define SSS_AES_BYTESWAP_IV             BIT(9)
-#define SSS_AES_BYTESWAP_CNT            BIT(8)
-#define SSS_AES_BYTESWAP_KEY            BIT(7)
-#define SSS_AES_KEY_CHANGE_MODE         BIT(6)
-#define SSS_AES_KEY_SIZE_128            _SBF(4, 0x00)
-#define SSS_AES_KEY_SIZE_192            _SBF(4, 0x01)
-#define SSS_AES_KEY_SIZE_256            _SBF(4, 0x02)
-#define SSS_AES_FIFO_MODE               BIT(3)
-#define SSS_AES_CHAIN_MODE_ECB          _SBF(1, 0x00)
-#define SSS_AES_CHAIN_MODE_CBC          _SBF(1, 0x01)
-#define SSS_AES_CHAIN_MODE_CTR          _SBF(1, 0x02)
-#define SSS_AES_MODE_DECRYPT            BIT(0)
+#define SSS_AES_BYTESWAP_DI		BIT(11)
+#define SSS_AES_BYTESWAP_DO		BIT(10)
+#define SSS_AES_BYTESWAP_IV		BIT(9)
+#define SSS_AES_BYTESWAP_CNT		BIT(8)
+#define SSS_AES_BYTESWAP_KEY		BIT(7)
+#define SSS_AES_KEY_CHANGE_MODE		BIT(6)
+#define SSS_AES_KEY_SIZE_128		_SBF(4, 0x00)
+#define SSS_AES_KEY_SIZE_192		_SBF(4, 0x01)
+#define SSS_AES_KEY_SIZE_256		_SBF(4, 0x02)
+#define SSS_AES_FIFO_MODE		BIT(3)
+#define SSS_AES_CHAIN_MODE_ECB		_SBF(1, 0x00)
+#define SSS_AES_CHAIN_MODE_CBC		_SBF(1, 0x01)
+#define SSS_AES_CHAIN_MODE_CTR		_SBF(1, 0x02)
+#define SSS_AES_MODE_DECRYPT		BIT(0)
 
 #define SSS_REG_AES_STATUS		0x04
-#define SSS_AES_BUSY                    BIT(2)
-#define SSS_AES_INPUT_READY             BIT(1)
-#define SSS_AES_OUTPUT_READY            BIT(0)
+#define SSS_AES_BUSY			BIT(2)
+#define SSS_AES_INPUT_READY		BIT(1)
+#define SSS_AES_OUTPUT_READY		BIT(0)
 
 #define SSS_REG_AES_IN_DATA(s)		(0x10 + (s << 2))
 #define SSS_REG_AES_OUT_DATA(s)		(0x20 + (s << 2))
@@ -129,26 +145,97 @@
 #define SSS_REG_AES_CNT_DATA(s)		(0x40 + (s << 2))
 #define SSS_REG_AES_KEY_DATA(s)		(0x80 + (s << 2))
 
-#define SSS_REG(dev, reg)               ((dev)->ioaddr + (SSS_REG_##reg))
-#define SSS_READ(dev, reg)              __raw_readl(SSS_REG(dev, reg))
-#define SSS_WRITE(dev, reg, val)        __raw_writel((val), SSS_REG(dev, reg))
+#define SSS_REG(dev, reg)		((dev)->ioaddr + (SSS_REG_##reg))
+#define SSS_READ(dev, reg)		__raw_readl(SSS_REG(dev, reg))
+#define SSS_WRITE(dev, reg, val)	__raw_writel((val), SSS_REG(dev, reg))
 
-#define SSS_AES_REG(dev, reg)           ((dev)->aes_ioaddr + SSS_REG_##reg)
+#define SSS_AES_REG(dev, reg)		((dev)->aes_ioaddr + SSS_REG_##reg)
 #define SSS_AES_WRITE(dev, reg, val)    __raw_writel((val), \
 						SSS_AES_REG(dev, reg))
 
 /* HW engine modes */
-#define FLAGS_AES_DECRYPT               BIT(0)
-#define FLAGS_AES_MODE_MASK             _SBF(1, 0x03)
-#define FLAGS_AES_CBC                   _SBF(1, 0x01)
-#define FLAGS_AES_CTR                   _SBF(1, 0x02)
+#define FLAGS_AES_DECRYPT		BIT(0)
+#define FLAGS_AES_MODE_MASK		_SBF(1, 0x03)
+#define FLAGS_AES_CBC			_SBF(1, 0x01)
+#define FLAGS_AES_CTR			_SBF(1, 0x02)
+
+#define AES_KEY_LEN			16
+#define CRYPTO_QUEUE_LEN		1
+
+/* HASH registers */
+#define SSS_REG_HASH_CTRL		0x00
+
+#define SSS_HASH_USER_IV_EN		BIT(5)
+#define SSS_HASH_INIT_BIT		BIT(4)
+#define SSS_HASH_ENGINE_SHA1		_SBF(1, 0x00)
+#define SSS_HASH_ENGINE_MD5		_SBF(1, 0x01)
+#define SSS_HASH_ENGINE_SHA256		_SBF(1, 0x02)
+
+#define SSS_HASH_ENGINE_MASK		_SBF(1, 0x03)
+
+#define SSS_REG_HASH_CTRL_PAUSE		0x04
+
+#define SSS_HASH_PAUSE			BIT(0)
+
+#define SSS_REG_HASH_CTRL_FIFO		0x08
+
+#define SSS_HASH_FIFO_MODE_DMA		BIT(0)
+#define SSS_HASH_FIFO_MODE_CPU          0
+
+#define SSS_REG_HASH_CTRL_SWAP		0x0C
+
+#define SSS_HASH_BYTESWAP_DI		BIT(3)
+#define SSS_HASH_BYTESWAP_DO		BIT(2)
+#define SSS_HASH_BYTESWAP_IV		BIT(1)
+#define SSS_HASH_BYTESWAP_KEY		BIT(0)
+
+#define SSS_REG_HASH_STATUS		0x10
+
+#define SSS_HASH_STATUS_MSG_DONE	BIT(6)
+#define SSS_HASH_STATUS_PARTIAL_DONE	BIT(4)
+#define SSS_HASH_STATUS_BUFFER_READY	BIT(0)
+
+#define SSS_REG_HASH_MSG_SIZE_LOW	0x20
+#define SSS_REG_HASH_MSG_SIZE_HIGH	0x24
+
+#define SSS_REG_HASH_PRE_MSG_SIZE_LOW	0x28
+#define SSS_REG_HASH_PRE_MSG_SIZE_HIGH	0x2C
 
-#define AES_KEY_LEN         16
-#define CRYPTO_QUEUE_LEN    1
+#define SSS_REG_HASH_IV(s)		(0xB0 + ((s) << 2))
+#define SSS_REG_HASH_OUT(s)		(0x100 + ((s) << 2))
+
+#define HASH_BLOCK_SIZE			64
+#define HASH_REG_SIZEOF			4
+#define HASH_MD5_MAX_REG		(MD5_DIGEST_SIZE / HASH_REG_SIZEOF)
+#define HASH_SHA1_MAX_REG		(SHA1_DIGEST_SIZE / HASH_REG_SIZEOF)
+#define HASH_SHA256_MAX_REG		(SHA256_DIGEST_SIZE / HASH_REG_SIZEOF)
+
+/*
+ * HASH bit numbers, used by device, setting in dev->hash_flags with
+ * functions set_bit(), clear_bit() or tested with test_bit() or BIT(),
+ * to keep HASH state BUSY or FREE, or to signal state from irq_handler
+ * to hash_tasklet. SGS keep track of allocated memory for scatterlist
+ */
+#define HASH_FLAGS_BUSY		0
+#define HASH_FLAGS_FINAL	1
+#define HASH_FLAGS_DMA_ACTIVE	2
+#define HASH_FLAGS_OUTPUT_READY	3
+#define HASH_FLAGS_DMA_READY	4
+#define HASH_FLAGS_SGS_COPIED	5
+#define HASH_FLAGS_SGS_ALLOCED	6
+
+/* HASH HW constants */
+#define BUFLEN			HASH_BLOCK_SIZE
+
+#define SSS_HASH_DMA_LEN_ALIGN	8
+#define SSS_HASH_DMA_ALIGN_MASK	(SSS_HASH_DMA_LEN_ALIGN - 1)
+
+#define SSS_HASH_QUEUE_LENGTH	10
 
 /**
  * struct samsung_aes_variant - platform specific SSS driver data
  * @aes_offset: AES register offset from SSS module's base.
+ * @hash_offset: HASH register offset from SSS module's base.
  *
  * Specifies platform specific configuration of SSS module.
  * Note: A structure for driver specific platform data is used for future
@@ -156,6 +243,7 @@
  */
 struct samsung_aes_variant {
 	unsigned int			aes_offset;
+	unsigned int			hash_offset;
 };
 
 struct s5p_aes_reqctx {
@@ -195,6 +283,19 @@ struct s5p_aes_ctx {
  *		protects against concurrent access to these fields.
  * @lock:	Lock for protecting both access to device hardware registers
  *		and fields related to current request (including the busy field).
+ * @res:	Resources for hash.
+ * @io_hash_base: Per-variant offset for HASH block IO memory.
+ * @hash_lock:	Lock for protecting hash_req, hash_queue and hash_flags
+ *		variable.
+ * @hash_flags:	Flags for current HASH op.
+ * @hash_queue:	Async hash queue.
+ * @hash_tasklet: New HASH request scheduling job.
+ * @xmit_buf:	Buffer for current HASH request transfer into SSS block.
+ * @hash_req:	Current request sending to SSS HASH block.
+ * @hash_sg_iter: Scatterlist transferred through DMA into SSS HASH block.
+ * @hash_sg_cnt: Counter for hash_sg_iter.
+ *
+ * @use_hash:	true if HASH algs enabled
  */
 struct s5p_aes_dev {
 	struct device			*dev;
@@ -215,16 +316,83 @@ struct s5p_aes_dev {
 	struct crypto_queue		queue;
 	bool				busy;
 	spinlock_t			lock;
+
+	struct resource			*res;
+	void __iomem			*io_hash_base;
+
+	spinlock_t			hash_lock; /* protect hash_ vars */
+	unsigned long			hash_flags;
+	struct crypto_queue		hash_queue;
+	struct tasklet_struct		hash_tasklet;
+
+	u8				xmit_buf[BUFLEN];
+	struct ahash_request		*hash_req;
+	struct scatterlist		*hash_sg_iter;
+	unsigned int			hash_sg_cnt;
+
+	bool				use_hash;
 };
 
-static struct s5p_aes_dev *s5p_dev;
+/**
+ * struct s5p_hash_reqctx - HASH request context
+ * @dd:		Associated device
+ * @op_update:	Current request operation (OP_UPDATE or OP_FINAL)
+ * @digcnt:	Number of bytes processed by HW (without buffer[] ones)
+ * @digest:	Digest message or IV for partial result
+ * @nregs:	Number of HW registers for digest or IV read/write
+ * @engine:	Bits for selecting type of HASH in SSS block
+ * @sg:		sg for DMA transfer
+ * @sg_len:	Length of sg for DMA transfer
+ * @sgl[]:	sg for joining buffer and req->src scatterlist
+ * @skip:	Skip offset in req->src for current op
+ * @total:	Total number of bytes for current request
+ * @finup:	Keep state for finup or final.
+ * @error:	Keep track of error.
+ * @bufcnt:	Number of bytes holded in buffer[]
+ * @buffer[]:	For byte(s) from end of req->src in UPDATE op
+ */
+struct s5p_hash_reqctx {
+	struct s5p_aes_dev	*dd;
+	bool			op_update;
+
+	u64			digcnt;
+	u8			digest[SHA256_DIGEST_SIZE];
+
+	unsigned int		nregs; /* digest_size / sizeof(reg) */
+	u32			engine;
+
+	struct scatterlist	*sg;
+	unsigned int		sg_len;
+	struct scatterlist	sgl[2];
+	unsigned int		skip;
+	unsigned int		total;
+	bool			finup;
+	bool			error;
+
+	u32			bufcnt;
+	u8			buffer[0];
+};
+
+/**
+ * struct s5p_hash_ctx - HASH transformation context
+ * @dd:		Associated device
+ * @flags:	Bits for algorithm HASH.
+ * @fallback:	Software transformation for zero message or size < BUFLEN.
+ */
+struct s5p_hash_ctx {
+	struct s5p_aes_dev	*dd;
+	unsigned long		flags;
+	struct crypto_shash	*fallback;
+};
 
 static const struct samsung_aes_variant s5p_aes_data = {
 	.aes_offset	= 0x4000,
+	.hash_offset	= 0x6000,
 };
 
 static const struct samsung_aes_variant exynos_aes_data = {
 	.aes_offset	= 0x200,
+	.hash_offset	= 0x400,
 };
 
 static const struct of_device_id s5p_sss_dt_match[] = {
@@ -254,6 +422,8 @@ static inline struct samsung_aes_variant *find_s5p_sss_version
 			platform_get_device_id(pdev)->driver_data;
 }
 
+static struct s5p_aes_dev *s5p_dev;
+
 static void s5p_set_dma_indata(struct s5p_aes_dev *dev, struct scatterlist *sg)
 {
 	SSS_WRITE(dev, FCBRDMAS, sg_dma_address(sg));
@@ -436,15 +606,65 @@ static int s5p_aes_rx(struct s5p_aes_dev *dev/*, bool *set_dma*/)
 	return ret;
 }
 
+static inline u32 s5p_hash_read(struct s5p_aes_dev *dd, u32 offset)
+{
+	return __raw_readl(dd->io_hash_base + offset);
+}
+
+static inline void s5p_hash_write(struct s5p_aes_dev *dd,
+				  u32 offset, u32 value)
+{
+	__raw_writel(value, dd->io_hash_base + offset);
+}
+
+/**
+ * s5p_set_dma_hashdata() - start DMA with sg
+ * @dev:	device
+ * @sg:		scatterlist ready to DMA transmit
+ */
+static void s5p_set_dma_hashdata(struct s5p_aes_dev *dev,
+				 struct scatterlist *sg)
+{
+	dev->hash_sg_cnt--;
+	SSS_WRITE(dev, FCHRDMAS, sg_dma_address(sg));
+	SSS_WRITE(dev, FCHRDMAL, sg_dma_len(sg)); /* DMA starts */
+}
+
+/**
+ * s5p_hash_rx() - get next hash_sg_iter
+ * @dev:	device
+ *
+ * Return:
+ * 2	if there is no more data and it is UPDATE op
+ * 1	if new receiving (input) data is ready and can be written to device
+ * 0	if there is no more data and it is FINAL op
+ */
+static int s5p_hash_rx(struct s5p_aes_dev *dev)
+{
+	if (dev->hash_sg_cnt > 0) {
+		dev->hash_sg_iter = sg_next(dev->hash_sg_iter);
+		return 1;
+	}
+
+	set_bit(HASH_FLAGS_DMA_READY, &dev->hash_flags);
+	if (test_bit(HASH_FLAGS_FINAL, &dev->hash_flags))
+		return 0;
+
+	return 2;
+}
+
 static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
 {
 	struct platform_device *pdev = dev_id;
 	struct s5p_aes_dev *dev = platform_get_drvdata(pdev);
 	int err_dma_tx = 0;
 	int err_dma_rx = 0;
+	int err_dma_hx = 0;
 	bool tx_end = false;
+	bool hx_end = false;
 	unsigned long flags;
 	uint32_t status;
+	u32 st_bits;
 	int err;
 
 	spin_lock_irqsave(&dev->lock, flags);
@@ -456,6 +676,8 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
 	 *
 	 * If there is no more data in tx scatter list, call s5p_aes_complete()
 	 * and schedule new tasklet.
+	 *
+	 * Handle hx interrupt. If there is still data map next entry.
 	 */
 	status = SSS_READ(dev, FCINTSTAT);
 	if (status & SSS_FCINTSTAT_BRDMAINT)
@@ -467,7 +689,29 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
 		err_dma_tx = s5p_aes_tx(dev);
 	}
 
-	SSS_WRITE(dev, FCINTPEND, status);
+	if (status & SSS_FCINTSTAT_HRDMAINT)
+		err_dma_hx = s5p_hash_rx(dev);
+
+	st_bits = status & (SSS_FCINTSTAT_BRDMAINT | SSS_FCINTSTAT_BTDMAINT |
+				SSS_FCINTSTAT_HRDMAINT);
+	/* clear DMA bits */
+	SSS_WRITE(dev, FCINTPEND, st_bits);
+
+	/* clear HASH irq bits */
+	if (status & (SSS_FCINTSTAT_HDONEINT | SSS_FCINTSTAT_HPARTINT)) {
+		/* cannot have both HPART and HDONE */
+		if (status & SSS_FCINTSTAT_HPARTINT)
+			st_bits = SSS_HASH_STATUS_PARTIAL_DONE;
+
+		if (status & SSS_FCINTSTAT_HDONEINT)
+			st_bits = SSS_HASH_STATUS_MSG_DONE;
+
+		set_bit(HASH_FLAGS_OUTPUT_READY, &dev->hash_flags);
+		s5p_hash_write(dev, SSS_REG_HASH_STATUS, st_bits);
+		hx_end = true;
+		/* when DONE or PART, do not handle HASH DMA */
+		err_dma_hx = 0;
+	}
 
 	if (err_dma_rx < 0) {
 		err = err_dma_rx;
@@ -480,6 +724,8 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
 
 	if (tx_end) {
 		s5p_sg_done(dev);
+		if (err_dma_hx == 1)
+			s5p_set_dma_hashdata(dev, dev->hash_sg_iter);
 
 		spin_unlock_irqrestore(&dev->lock, flags);
 
@@ -497,21 +743,1100 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id)
 			s5p_set_dma_outdata(dev, dev->sg_dst);
 		if (err_dma_rx == 1)
 			s5p_set_dma_indata(dev, dev->sg_src);
+		if (err_dma_hx == 1)
+			s5p_set_dma_hashdata(dev, dev->hash_sg_iter);
 
 		spin_unlock_irqrestore(&dev->lock, flags);
 	}
 
-	return IRQ_HANDLED;
+	goto hash_irq_end;
 
 error:
 	s5p_sg_done(dev);
 	dev->busy = false;
+	if (err_dma_hx == 1)
+		s5p_set_dma_hashdata(dev, dev->hash_sg_iter);
+
 	spin_unlock_irqrestore(&dev->lock, flags);
 	s5p_aes_complete(dev, err);
 
+hash_irq_end:
+	/*
+	 * Note about else if:
+	 *   when hash_sg_iter reaches end and its UPDATE op,
+	 *   issue SSS_HASH_PAUSE and wait for HPART irq
+	 */
+	if (hx_end)
+		tasklet_schedule(&dev->hash_tasklet);
+	else if (err_dma_hx == 2)
+		s5p_hash_write(dev, SSS_REG_HASH_CTRL_PAUSE,
+			       SSS_HASH_PAUSE);
+
 	return IRQ_HANDLED;
 }
 
+/**
+ * s5p_hash_read_msg() - read message or IV from HW
+ * @req:	AHASH request
+ */
+static void s5p_hash_read_msg(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	struct s5p_aes_dev *dd = ctx->dd;
+	u32 *hash = (u32 *)ctx->digest;
+	unsigned int i;
+
+	for (i = 0; i < ctx->nregs; i++)
+		hash[i] = s5p_hash_read(dd, SSS_REG_HASH_OUT(i));
+}
+
+/**
+ * s5p_hash_write_ctx_iv() - write IV for next partial/finup op.
+ * @dd:		device
+ * @ctx:	request context
+ */
+static void s5p_hash_write_ctx_iv(struct s5p_aes_dev *dd,
+				  struct s5p_hash_reqctx *ctx)
+{
+	u32 *hash = (u32 *)ctx->digest;
+	unsigned int i;
+
+	for (i = 0; i < ctx->nregs; i++)
+		s5p_hash_write(dd, SSS_REG_HASH_IV(i), hash[i]);
+}
+
+/**
+ * s5p_hash_write_iv() - write IV for next partial/finup op.
+ * @req:	AHASH request
+ */
+static void s5p_hash_write_iv(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+
+	s5p_hash_write_ctx_iv(ctx->dd, ctx);
+}
+
+/**
+ * s5p_hash_copy_result() - copy digest into req->result
+ * @req:	AHASH request
+ */
+static void s5p_hash_copy_result(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+
+	if (!req->result)
+		return;
+
+	memcpy(req->result, ctx->digest, ctx->nregs * HASH_REG_SIZEOF);
+}
+
+/**
+ * s5p_hash_dma_flush() - flush HASH DMA
+ * @dev:	secss device
+ */
+static void s5p_hash_dma_flush(struct s5p_aes_dev *dev)
+{
+	SSS_WRITE(dev, FCHRDMAC, SSS_FCHRDMAC_FLUSH);
+}
+
+/**
+ * s5p_hash_dma_enable() - enable DMA mode for HASH
+ * @dev:	secss device
+ *
+ * enable DMA mode for HASH
+ */
+static void s5p_hash_dma_enable(struct s5p_aes_dev *dev)
+{
+	s5p_hash_write(dev, SSS_REG_HASH_CTRL_FIFO, SSS_HASH_FIFO_MODE_DMA);
+}
+
+/**
+ * s5p_hash_irq_disable() - disable irq HASH signals
+ * @dev:	secss device
+ * @flags:	bitfield with irq's to be disabled
+ */
+static void s5p_hash_irq_disable(struct s5p_aes_dev *dev, u32 flags)
+{
+	SSS_WRITE(dev, FCINTENCLR, flags);
+}
+
+/**
+ * s5p_hash_irq_enable() - enable irq signals
+ * @dev:	secss device
+ * @flags:	bitfield with irq's to be enabled
+ */
+static void s5p_hash_irq_enable(struct s5p_aes_dev *dev, int flags)
+{
+	SSS_WRITE(dev, FCINTENSET, flags);
+}
+
+/**
+ * s5p_hash_set_flow() - set flow inside SecSS AES/DES with/without HASH
+ * @dev:	secss device
+ * @hashflow:	HASH stream flow with/without crypto AES/DES
+ */
+static void s5p_hash_set_flow(struct s5p_aes_dev *dev, u32 hashflow)
+{
+	unsigned long flags;
+	u32 flow;
+
+	spin_lock_irqsave(&dev->lock, flags);
+
+	flow = SSS_READ(dev, FCFIFOCTRL);
+	flow &= ~SSS_HASHIN_MASK;
+	flow |= hashflow;
+	SSS_WRITE(dev, FCFIFOCTRL, flow);
+
+	spin_unlock_irqrestore(&dev->lock, flags);
+}
+
+/**
+ * s5p_ahash_dma_init() - enable DMA and set HASH flow inside SecSS
+ * @dev:	secss device
+ * @hashflow:	HASH stream flow with/without AES/DES
+ *
+ * flush HASH DMA and enable DMA, set HASH stream flow inside SecSS HW,
+ * enable HASH irq's HRDMA, HDONE, HPART
+ */
+static void s5p_ahash_dma_init(struct s5p_aes_dev *dev, u32 hashflow)
+{
+	s5p_hash_irq_disable(dev, SSS_FCINTENCLR_HRDMAINTENCLR |
+			     SSS_FCINTENCLR_HDONEINTENCLR |
+			     SSS_FCINTENCLR_HPARTINTENCLR);
+	s5p_hash_dma_flush(dev);
+
+	s5p_hash_dma_enable(dev);
+	s5p_hash_set_flow(dev, hashflow & SSS_HASHIN_MASK);
+	s5p_hash_irq_enable(dev, SSS_FCINTENSET_HRDMAINTENSET |
+			    SSS_FCINTENSET_HDONEINTENSET |
+			    SSS_FCINTENSET_HPARTINTENSET);
+}
+
+/**
+ * s5p_hash_write_ctrl() - prepare HASH block in SecSS for processing
+ * @dd:		secss device
+ * @length:	length for request
+ * @final:	true if final op
+ *
+ * Prepare SSS HASH block for processing bytes in DMA mode. If it is called
+ * after previous updates, fill up IV words. For final, calculate and set
+ * lengths for HASH so SecSS can finalize hash. For partial, set SSS HASH
+ * length as 2^63 so it will be never reached and set to zero prelow and
+ * prehigh.
+ *
+ * This function does not start DMA transfer.
+ */
+static void s5p_hash_write_ctrl(struct s5p_aes_dev *dd, size_t length,
+				bool final)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(dd->hash_req);
+	u32 prelow, prehigh, low, high;
+	u32 configflags, swapflags;
+	u64 tmplen;
+
+	configflags = ctx->engine | SSS_HASH_INIT_BIT;
+
+	if (likely(ctx->digcnt)) {
+		s5p_hash_write_ctx_iv(dd, ctx);
+		configflags |= SSS_HASH_USER_IV_EN;
+	}
+
+	if (final) {
+		/* number of bytes for last part */
+		low = length;
+		high = 0;
+		/* total number of bits prev hashed */
+		tmplen = ctx->digcnt * 8;
+		prelow = (u32)tmplen;
+		prehigh = (u32)(tmplen >> 32);
+	} else {
+		prelow = 0;
+		prehigh = 0;
+		low = 0;
+		high = BIT(31);
+	}
+
+	swapflags = SSS_HASH_BYTESWAP_DI | SSS_HASH_BYTESWAP_DO |
+		    SSS_HASH_BYTESWAP_IV | SSS_HASH_BYTESWAP_KEY;
+
+	s5p_hash_write(dd, SSS_REG_HASH_MSG_SIZE_LOW, low);
+	s5p_hash_write(dd, SSS_REG_HASH_MSG_SIZE_HIGH, high);
+	s5p_hash_write(dd, SSS_REG_HASH_PRE_MSG_SIZE_LOW, prelow);
+	s5p_hash_write(dd, SSS_REG_HASH_PRE_MSG_SIZE_HIGH, prehigh);
+
+	s5p_hash_write(dd, SSS_REG_HASH_CTRL_SWAP, swapflags);
+	s5p_hash_write(dd, SSS_REG_HASH_CTRL, configflags);
+}
+
+/**
+ * s5p_hash_xmit_dma() - start DMA hash processing
+ * @dd:		secss device
+ * @length:	length for request
+ * @final:	true if final op
+ *
+ * Update digcnt here, as it is needed for finup/final op.
+ */
+static int s5p_hash_xmit_dma(struct s5p_aes_dev *dd, size_t length,
+			     bool final)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(dd->hash_req);
+	unsigned int cnt;
+
+	cnt = dma_map_sg(dd->dev, ctx->sg, ctx->sg_len, DMA_TO_DEVICE);
+	if (!cnt) {
+		dev_err(dd->dev, "dma_map_sg error\n");
+		ctx->error = true;
+		return -EINVAL;
+	}
+
+	set_bit(HASH_FLAGS_DMA_ACTIVE, &dd->hash_flags);
+	dd->hash_sg_iter = ctx->sg;
+	dd->hash_sg_cnt = cnt;
+	s5p_hash_write_ctrl(dd, length, final);
+	ctx->digcnt += length;
+	ctx->total -= length;
+
+	/* catch last interrupt */
+	if (final)
+		set_bit(HASH_FLAGS_FINAL, &dd->hash_flags);
+
+	s5p_set_dma_hashdata(dd, dd->hash_sg_iter); /* DMA starts */
+
+	return -EINPROGRESS;
+}
+
+/**
+ * s5p_hash_copy_sgs() - copy request's bytes into new buffer
+ * @ctx:	request context
+ * @sg:		source scatterlist request
+ * @new_len:	number of bytes to process from sg
+ *
+ * Allocate new buffer, copy data for HASH into it. If there was xmit_buf
+ * filled, copy it first, then copy data from sg into it. Prepare one sgl[0]
+ * with allocated buffer.
+ *
+ * Set bit in dd->hash_flag so we can free it after irq ends processing.
+ */
+static int s5p_hash_copy_sgs(struct s5p_hash_reqctx *ctx,
+			     struct scatterlist *sg, unsigned int new_len)
+{
+	unsigned int pages, len;
+	void *buf;
+
+	len = new_len + ctx->bufcnt;
+	pages = get_order(len);
+
+	buf = (void *)__get_free_pages(GFP_ATOMIC, pages);
+	if (!buf) {
+		dev_err(ctx->dd->dev, "alloc pages for unaligned case.\n");
+		ctx->error = true;
+		return -ENOMEM;
+	}
+
+	if (ctx->bufcnt)
+		memcpy(buf, ctx->dd->xmit_buf, ctx->bufcnt);
+
+	scatterwalk_map_and_copy(buf + ctx->bufcnt, sg, ctx->skip,
+				 new_len, 0);
+	sg_init_table(ctx->sgl, 1);
+	sg_set_buf(ctx->sgl, buf, len);
+	ctx->sg = ctx->sgl;
+	ctx->sg_len = 1;
+	ctx->bufcnt = 0;
+	ctx->skip = 0;
+	set_bit(HASH_FLAGS_SGS_COPIED, &ctx->dd->hash_flags);
+
+	return 0;
+}
+
+/**
+ * s5p_hash_copy_sg_lists() - copy sg list and make fixes in copy
+ * @ctx:	request context
+ * @sg:		source scatterlist request
+ * @new_len:	number of bytes to process from sg
+ *
+ * Allocate new scatterlist table, copy data for HASH into it. If there was
+ * xmit_buf filled, prepare it first, then copy page, length and offset from
+ * source sg into it, adjusting begin and/or end for skip offset and
+ * hash_later value.
+ *
+ * Resulting sg table will be assigned to ctx->sg. Set flag so we can free
+ * it after irq ends processing.
+ */
+static int s5p_hash_copy_sg_lists(struct s5p_hash_reqctx *ctx,
+				  struct scatterlist *sg, unsigned int new_len)
+{
+	unsigned int skip = ctx->skip, n = sg_nents(sg);
+	struct scatterlist *tmp;
+	unsigned int len;
+
+	if (ctx->bufcnt)
+		n++;
+
+	ctx->sg = kmalloc_array(n, sizeof(*sg), GFP_KERNEL);
+	if (!ctx->sg) {
+		ctx->error = true;
+		return -ENOMEM;
+	}
+
+	sg_init_table(ctx->sg, n);
+
+	tmp = ctx->sg;
+
+	ctx->sg_len = 0;
+
+	if (ctx->bufcnt) {
+		sg_set_buf(tmp, ctx->dd->xmit_buf, ctx->bufcnt);
+		tmp = sg_next(tmp);
+		ctx->sg_len++;
+	}
+
+	while (sg && skip >= sg->length) {
+		skip -= sg->length;
+		sg = sg_next(sg);
+	}
+
+	while (sg && new_len) {
+		len = sg->length - skip;
+		if (new_len < len)
+			len = new_len;
+
+		new_len -= len;
+		sg_set_page(tmp, sg_page(sg), len, sg->offset + skip);
+		skip = 0;
+		if (new_len <= 0)
+			sg_mark_end(tmp);
+
+		tmp = sg_next(tmp);
+		ctx->sg_len++;
+		sg = sg_next(sg);
+	}
+
+	set_bit(HASH_FLAGS_SGS_ALLOCED, &ctx->dd->hash_flags);
+
+	return 0;
+}
+
+/**
+ * s5p_hash_prepare_sgs() - prepare sg for processing
+ * @ctx:	request context
+ * @sg:		source scatterlist request
+ * @nbytes:	number of bytes to process from sg
+ * @final:	final flag
+ *
+ * Check two conditions: (1) if buffers in sg have len aligned data, and (2)
+ * sg table have good aligned elements (list_ok). If one of this checks fails,
+ * then either (1) allocates new buffer for data with s5p_hash_copy_sgs, copy
+ * data into this buffer and prepare request in sgl, or (2) allocates new sg
+ * table and prepare sg elements.
+ *
+ * For digest or finup all conditions can be good, and we may not need any
+ * fixes.
+ */
+static int s5p_hash_prepare_sgs(struct s5p_hash_reqctx *ctx,
+				struct scatterlist *sg,
+				unsigned int new_len, bool final)
+{
+	unsigned int skip = ctx->skip, nbytes = new_len, n = 0;
+	bool aligned = true, list_ok = true;
+	struct scatterlist *sg_tmp = sg;
+
+	if (!sg || !sg->length || !new_len)
+		return 0;
+
+	if (skip || !final)
+		list_ok = false;
+
+	while (nbytes > 0 && sg_tmp) {
+		n++;
+		if (skip >= sg_tmp->length) {
+			skip -= sg_tmp->length;
+			if (!sg_tmp->length) {
+				aligned = false;
+				break;
+			}
+		} else {
+			if (!IS_ALIGNED(sg_tmp->length - skip, BUFLEN)) {
+				aligned = false;
+				break;
+			}
+
+			if (nbytes < sg_tmp->length - skip) {
+				list_ok = false;
+				break;
+			}
+
+			nbytes -= sg_tmp->length - skip;
+			skip = 0;
+		}
+
+		sg_tmp = sg_next(sg_tmp);
+	}
+
+	if (!aligned)
+		return s5p_hash_copy_sgs(ctx, sg, new_len);
+	else if (!list_ok)
+		return s5p_hash_copy_sg_lists(ctx, sg, new_len);
+
+	/*
+	 * Have aligned data from previous operation and/or current
+	 * Note: will enter here only if (digest or finup) and aligned
+	 */
+	if (ctx->bufcnt) {
+		ctx->sg_len = n;
+		sg_init_table(ctx->sgl, 2);
+		sg_set_buf(ctx->sgl, ctx->dd->xmit_buf, ctx->bufcnt);
+		sg_chain(ctx->sgl, 2, sg);
+		ctx->sg = ctx->sgl;
+		ctx->sg_len++;
+	} else {
+		ctx->sg = sg;
+		ctx->sg_len = n;
+	}
+
+	return 0;
+}
+
+/**
+ * s5p_hash_prepare_request() - prepare request for processing
+ * @req:	AHASH request
+ * @update:	true if UPDATE op
+ *
+ * Note 1: we can have update flag _and_ final flag at the same time.
+ * Note 2: we enter here when digcnt > BUFLEN (=HASH_BLOCK_SIZE) or
+ *	   either req->nbytes or ctx->bufcnt + req->nbytes is > BUFLEN or
+ *	   we have final op
+ */
+static int s5p_hash_prepare_request(struct ahash_request *req, bool update)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	bool final = ctx->finup;
+	int xmit_len, hash_later, nbytes;
+	int ret;
+
+	if (!req)
+		return 0;
+
+	if (update)
+		nbytes = req->nbytes;
+	else
+		nbytes = 0;
+
+	ctx->total = nbytes + ctx->bufcnt;
+	if (!ctx->total)
+		return 0;
+
+	if (nbytes && (!IS_ALIGNED(ctx->bufcnt, BUFLEN))) {
+		/* bytes left from previous request, so fill up to BUFLEN */
+		int len = BUFLEN - ctx->bufcnt % BUFLEN;
+
+		if (len > nbytes)
+			len = nbytes;
+
+		scatterwalk_map_and_copy(ctx->buffer + ctx->bufcnt, req->src,
+					 0, len, 0);
+		ctx->bufcnt += len;
+		nbytes -= len;
+		ctx->skip = len;
+	} else {
+		ctx->skip = 0;
+	}
+
+	if (ctx->bufcnt)
+		memcpy(ctx->dd->xmit_buf, ctx->buffer, ctx->bufcnt);
+
+	xmit_len = ctx->total;
+	if (final) {
+		hash_later = 0;
+	} else {
+		if (IS_ALIGNED(xmit_len, BUFLEN))
+			xmit_len -= BUFLEN;
+		else
+			xmit_len -= xmit_len & (BUFLEN - 1);
+
+		hash_later = ctx->total - xmit_len;
+		/* copy hash_later bytes from end of req->src */
+		/* previous bytes are in xmit_buf, so no overwrite */
+		scatterwalk_map_and_copy(ctx->buffer, req->src,
+					 req->nbytes - hash_later,
+					 hash_later, 0);
+	}
+
+	if (xmit_len > BUFLEN) {
+		ret = s5p_hash_prepare_sgs(ctx, req->src, nbytes - hash_later,
+					   final);
+		if (ret)
+			return ret;
+	} else {
+		/* have buffered data only */
+		if (unlikely(!ctx->bufcnt)) {
+			/* first update didn't fill up buffer */
+			scatterwalk_map_and_copy(ctx->dd->xmit_buf, req->src,
+						 0, xmit_len, 0);
+		}
+
+		sg_init_table(ctx->sgl, 1);
+		sg_set_buf(ctx->sgl, ctx->dd->xmit_buf, xmit_len);
+
+		ctx->sg = ctx->sgl;
+		ctx->sg_len = 1;
+	}
+
+	ctx->bufcnt = hash_later;
+	if (!final)
+		ctx->total = xmit_len;
+
+	return 0;
+}
+
+/**
+ * s5p_hash_update_dma_stop() - unmap DMA
+ * @dd:		secss device
+ *
+ * Unmap scatterlist ctx->sg.
+ */
+static void s5p_hash_update_dma_stop(struct s5p_aes_dev *dd)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(dd->hash_req);
+
+	dma_unmap_sg(dd->dev, ctx->sg, ctx->sg_len, DMA_TO_DEVICE);
+	clear_bit(HASH_FLAGS_DMA_ACTIVE, &dd->hash_flags);
+}
+
+/**
+ * s5p_hash_finish() - copy calculated digest to crypto layer
+ * @req:	AHASH request
+ */
+static void s5p_hash_finish(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	struct s5p_aes_dev *dd = ctx->dd;
+
+	if (ctx->digcnt)
+		s5p_hash_copy_result(req);
+
+	dev_dbg(dd->dev, "hash_finish digcnt: %lld\n", ctx->digcnt);
+}
+
+/**
+ * s5p_hash_finish_req() - finish request
+ * @req:	AHASH request
+ * @err:	error
+ */
+static void s5p_hash_finish_req(struct ahash_request *req, int err)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	struct s5p_aes_dev *dd = ctx->dd;
+	unsigned long flags;
+
+	if (test_bit(HASH_FLAGS_SGS_COPIED, &dd->hash_flags))
+		free_pages((unsigned long)sg_virt(ctx->sg),
+			   get_order(ctx->sg->length));
+
+	if (test_bit(HASH_FLAGS_SGS_ALLOCED, &dd->hash_flags))
+		kfree(ctx->sg);
+
+	ctx->sg = NULL;
+	dd->hash_flags &= ~(BIT(HASH_FLAGS_SGS_ALLOCED) |
+			    BIT(HASH_FLAGS_SGS_COPIED));
+
+	if (!err && !ctx->error) {
+		s5p_hash_read_msg(req);
+		if (test_bit(HASH_FLAGS_FINAL, &dd->hash_flags))
+			s5p_hash_finish(req);
+	} else {
+		ctx->error = true;
+	}
+
+	spin_lock_irqsave(&dd->hash_lock, flags);
+	dd->hash_flags &= ~(BIT(HASH_FLAGS_BUSY) | BIT(HASH_FLAGS_FINAL) |
+			    BIT(HASH_FLAGS_DMA_READY) |
+			    BIT(HASH_FLAGS_OUTPUT_READY));
+	spin_unlock_irqrestore(&dd->hash_lock, flags);
+
+	if (req->base.complete)
+		req->base.complete(&req->base, err);
+}
+
+/**
+ * s5p_hash_handle_queue() - handle hash queue
+ * @dd:		device s5p_aes_dev
+ * @req:	AHASH request
+ *
+ * If req!=NULL enqueue it on dd->queue, if FLAGS_BUSY is not set on the
+ * device then processes the first request from the dd->queue
+ *
+ * Returns: see s5p_hash_final below.
+ */
+static int s5p_hash_handle_queue(struct s5p_aes_dev *dd,
+				 struct ahash_request *req)
+{
+	struct crypto_async_request *async_req, *backlog;
+	struct s5p_hash_reqctx *ctx;
+	unsigned long flags;
+	int err = 0, ret = 0;
+
+retry:
+	spin_lock_irqsave(&dd->hash_lock, flags);
+	if (req)
+		ret = ahash_enqueue_request(&dd->hash_queue, req);
+
+	if (test_bit(HASH_FLAGS_BUSY, &dd->hash_flags)) {
+		spin_unlock_irqrestore(&dd->hash_lock, flags);
+		return ret;
+	}
+
+	backlog = crypto_get_backlog(&dd->hash_queue);
+	async_req = crypto_dequeue_request(&dd->hash_queue);
+	if (async_req)
+		set_bit(HASH_FLAGS_BUSY, &dd->hash_flags);
+
+	spin_unlock_irqrestore(&dd->hash_lock, flags);
+
+	if (!async_req)
+		return ret;
+
+	if (backlog)
+		backlog->complete(backlog, -EINPROGRESS);
+
+	req = ahash_request_cast(async_req);
+	dd->hash_req = req;
+	ctx = ahash_request_ctx(req);
+
+	err = s5p_hash_prepare_request(req, ctx->op_update);
+	if (err || !ctx->total)
+		goto out;
+
+	dev_dbg(dd->dev, "handling new req, op_update: %u, nbytes: %d\n",
+		ctx->op_update, req->nbytes);
+
+	s5p_ahash_dma_init(dd, SSS_HASHIN_INDEPENDENT);
+	if (ctx->digcnt)
+		s5p_hash_write_iv(req); /* restore hash IV */
+
+	if (ctx->op_update) { /* HASH_OP_UPDATE */
+		err = s5p_hash_xmit_dma(dd, ctx->total, ctx->finup);
+		if (err != -EINPROGRESS && ctx->finup && !ctx->error)
+			/* no final() after finup() */
+			err = s5p_hash_xmit_dma(dd, ctx->total, true);
+	} else { /* HASH_OP_FINAL */
+		err = s5p_hash_xmit_dma(dd, ctx->total, true);
+	}
+out:
+	if (err != -EINPROGRESS) {
+		/* hash_tasklet_cb will not finish it, so do it here */
+		s5p_hash_finish_req(req, err);
+		req = NULL;
+
+		/*
+		 * Execute next request immediately if there is anything
+		 * in queue.
+		 */
+		goto retry;
+	}
+
+	return ret;
+}
+
+/**
+ * s5p_hash_tasklet_cb() - hash tasklet
+ * @data:	ptr to s5p_aes_dev
+ */
+static void s5p_hash_tasklet_cb(unsigned long data)
+{
+	struct s5p_aes_dev *dd = (struct s5p_aes_dev *)data;
+
+	if (!test_bit(HASH_FLAGS_BUSY, &dd->hash_flags)) {
+		s5p_hash_handle_queue(dd, NULL);
+		return;
+	}
+
+	if (test_bit(HASH_FLAGS_DMA_READY, &dd->hash_flags)) {
+		if (test_and_clear_bit(HASH_FLAGS_DMA_ACTIVE,
+				       &dd->hash_flags)) {
+			s5p_hash_update_dma_stop(dd);
+		}
+
+		if (test_and_clear_bit(HASH_FLAGS_OUTPUT_READY,
+				       &dd->hash_flags)) {
+			/* hash or semi-hash ready */
+			clear_bit(HASH_FLAGS_DMA_READY, &dd->hash_flags);
+				goto finish;
+		}
+	}
+
+	return;
+
+finish:
+	/* finish curent request */
+	s5p_hash_finish_req(dd->hash_req, 0);
+
+	/* If we are not busy, process next req */
+	if (!test_bit(HASH_FLAGS_BUSY, &dd->hash_flags))
+		s5p_hash_handle_queue(dd, NULL);
+}
+
+/**
+ * s5p_hash_enqueue() - enqueue request
+ * @req:	AHASH request
+ * @op:		operation UPDATE (true) or FINAL (false)
+ *
+ * Returns: see s5p_hash_final below.
+ */
+static int s5p_hash_enqueue(struct ahash_request *req, bool op)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	struct s5p_hash_ctx *tctx = crypto_tfm_ctx(req->base.tfm);
+
+	ctx->op_update = op;
+
+	return s5p_hash_handle_queue(tctx->dd, req);
+}
+
+/**
+ * s5p_hash_update() - process the hash input data
+ * @req:	AHASH request
+ *
+ * If request will fit in buffer, copy it and return immediately
+ * else enqueue it with OP_UPDATE.
+ *
+ * Returns: see s5p_hash_final below.
+ */
+static int s5p_hash_update(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+
+	if (!req->nbytes)
+		return 0;
+
+	if (ctx->bufcnt + req->nbytes <= BUFLEN) {
+		scatterwalk_map_and_copy(ctx->buffer + ctx->bufcnt, req->src,
+					 0, req->nbytes, 0);
+		ctx->bufcnt += req->nbytes;
+		return 0;
+	}
+
+	return s5p_hash_enqueue(req, true); /* HASH_OP_UPDATE */
+}
+
+/**
+ * s5p_hash_shash_digest() - calculate shash digest
+ * @tfm:	crypto transformation
+ * @flags:	tfm flags
+ * @data:	input data
+ * @len:	length of data
+ * @out:	output buffer
+ */
+static int s5p_hash_shash_digest(struct crypto_shash *tfm, u32 flags,
+				 const u8 *data, unsigned int len, u8 *out)
+{
+	SHASH_DESC_ON_STACK(shash, tfm);
+
+	shash->tfm = tfm;
+	shash->flags = flags & ~CRYPTO_TFM_REQ_MAY_SLEEP;
+
+	return crypto_shash_digest(shash, data, len, out);
+}
+
+/**
+ * s5p_hash_final_shash() - calculate shash digest
+ * @req:	AHASH request
+ */
+static int s5p_hash_final_shash(struct ahash_request *req)
+{
+	struct s5p_hash_ctx *tctx = crypto_tfm_ctx(req->base.tfm);
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+
+	return s5p_hash_shash_digest(tctx->fallback, req->base.flags,
+				     ctx->buffer, ctx->bufcnt, req->result);
+}
+
+/**
+ * s5p_hash_final() - close up hash and calculate digest
+ * @req:	AHASH request
+ *
+ * Note: in final req->src do not have any data, and req->nbytes can be
+ * non-zero.
+ *
+ * If there were no input data processed yet and the buffered hash data is
+ * less than BUFLEN (64) then calculate the final hash immediately by using
+ * SW algorithm fallback.
+ *
+ * Otherwise enqueues the current AHASH request with OP_FINAL operation op
+ * and finalize hash message in HW. Note that if digcnt!=0 then there were
+ * previous update op, so there are always some buffered bytes in ctx->buffer,
+ * which means that ctx->bufcnt!=0
+ *
+ * Returns:
+ * 0 if the request has been processed immediately,
+ * -EINPROGRESS if the operation has been queued for later execution or is set
+ *		to processing by HW,
+ * -EBUSY if queue is full and request should be resubmitted later,
+ * other negative values denotes an error.
+ */
+static int s5p_hash_final(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+
+	ctx->finup = true;
+	if (ctx->error)
+		return -EINVAL; /* uncompleted hash is not needed */
+
+	if (!ctx->digcnt && ctx->bufcnt < BUFLEN)
+		return s5p_hash_final_shash(req);
+
+	return s5p_hash_enqueue(req, false); /* HASH_OP_FINAL */
+}
+
+/**
+ * s5p_hash_finup() - process last req->src and calculate digest
+ * @req:	AHASH request containing the last update data
+ *
+ * Return values: see s5p_hash_final above.
+ */
+static int s5p_hash_finup(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	int err1, err2;
+
+	ctx->finup = true;
+
+	err1 = s5p_hash_update(req);
+	if (err1 == -EINPROGRESS || err1 == -EBUSY)
+		return err1;
+
+	/*
+	 * final() has to be always called to cleanup resources even if
+	 * update() failed, except EINPROGRESS or calculate digest for small
+	 * size
+	 */
+	err2 = s5p_hash_final(req);
+
+	return err1 ?: err2;
+}
+
+/**
+ * s5p_hash_init() - initialize AHASH request contex
+ * @req:	AHASH request
+ *
+ * Init async hash request context.
+ */
+static int s5p_hash_init(struct ahash_request *req)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct s5p_hash_ctx *tctx = crypto_ahash_ctx(tfm);
+
+	ctx->dd = tctx->dd;
+	ctx->error = false;
+	ctx->finup = false;
+	ctx->bufcnt = 0;
+	ctx->digcnt = 0;
+	ctx->total = 0;
+	ctx->skip = 0;
+
+	dev_dbg(tctx->dd->dev, "init: digest size: %d\n",
+		crypto_ahash_digestsize(tfm));
+
+	switch (crypto_ahash_digestsize(tfm)) {
+	case MD5_DIGEST_SIZE:
+		ctx->engine = SSS_HASH_ENGINE_MD5;
+		ctx->nregs = HASH_MD5_MAX_REG;
+		break;
+	case SHA1_DIGEST_SIZE:
+		ctx->engine = SSS_HASH_ENGINE_SHA1;
+		ctx->nregs = HASH_SHA1_MAX_REG;
+		break;
+	case SHA256_DIGEST_SIZE:
+		ctx->engine = SSS_HASH_ENGINE_SHA256;
+		ctx->nregs = HASH_SHA256_MAX_REG;
+		break;
+	default:
+		ctx->error = true;
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * s5p_hash_digest - calculate digest from req->src
+ * @req:	AHASH request
+ *
+ * Return values: see s5p_hash_final above.
+ */
+static int s5p_hash_digest(struct ahash_request *req)
+{
+	return s5p_hash_init(req) ?: s5p_hash_finup(req);
+}
+
+/**
+ * s5p_hash_cra_init_alg - init crypto alg transformation
+ * @tfm:	crypto transformation
+ */
+static int s5p_hash_cra_init_alg(struct crypto_tfm *tfm)
+{
+	struct s5p_hash_ctx *tctx = crypto_tfm_ctx(tfm);
+	const char *alg_name = crypto_tfm_alg_name(tfm);
+
+	tctx->dd = s5p_dev;
+	/* Allocate a fallback and abort if it failed. */
+	tctx->fallback = crypto_alloc_shash(alg_name, 0,
+					    CRYPTO_ALG_NEED_FALLBACK);
+	if (IS_ERR(tctx->fallback)) {
+		pr_err("fallback alloc fails for '%s'\n", alg_name);
+		return PTR_ERR(tctx->fallback);
+	}
+
+	crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+				 sizeof(struct s5p_hash_reqctx) + BUFLEN);
+
+	return 0;
+}
+
+/**
+ * s5p_hash_cra_init - init crypto tfm
+ * @tfm:	crypto transformation
+ */
+static int s5p_hash_cra_init(struct crypto_tfm *tfm)
+{
+	return s5p_hash_cra_init_alg(tfm);
+}
+
+/**
+ * s5p_hash_cra_exit - exit crypto tfm
+ * @tfm:	crypto transformation
+ *
+ * free allocated fallback
+ */
+static void s5p_hash_cra_exit(struct crypto_tfm *tfm)
+{
+	struct s5p_hash_ctx *tctx = crypto_tfm_ctx(tfm);
+
+	crypto_free_shash(tctx->fallback);
+	tctx->fallback = NULL;
+}
+
+/**
+ * s5p_hash_export - export hash state
+ * @req:	AHASH request
+ * @out:	buffer for exported state
+ */
+static int s5p_hash_export(struct ahash_request *req, void *out)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+
+	memcpy(out, ctx, sizeof(*ctx) + ctx->bufcnt);
+
+	return 0;
+}
+
+/**
+ * s5p_hash_import - import hash state
+ * @req:	AHASH request
+ * @in:		buffer with state to be imported from
+ */
+static int s5p_hash_import(struct ahash_request *req, const void *in)
+{
+	struct s5p_hash_reqctx *ctx = ahash_request_ctx(req);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+	struct s5p_hash_ctx *tctx = crypto_ahash_ctx(tfm);
+	const struct s5p_hash_reqctx *ctx_in = in;
+
+	memcpy(ctx, in, sizeof(*ctx) + BUFLEN);
+	if (ctx_in->bufcnt > BUFLEN) {
+		ctx->error = true;
+		return -EINVAL;
+	}
+
+	ctx->dd = tctx->dd;
+	ctx->error = false;
+
+	return 0;
+}
+
+static struct ahash_alg algs_sha1_md5_sha256[] = {
+{
+	.init		= s5p_hash_init,
+	.update		= s5p_hash_update,
+	.final		= s5p_hash_final,
+	.finup		= s5p_hash_finup,
+	.digest		= s5p_hash_digest,
+	.export		= s5p_hash_export,
+	.import		= s5p_hash_import,
+	.halg.statesize = sizeof(struct s5p_hash_reqctx) + BUFLEN,
+	.halg.digestsize	= SHA1_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "sha1",
+		.cra_driver_name	= "exynos-sha1",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+					  CRYPTO_ALG_KERN_DRIVER_ONLY |
+					  CRYPTO_ALG_ASYNC |
+					  CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= HASH_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct s5p_hash_ctx),
+		.cra_alignmask		= SSS_HASH_DMA_ALIGN_MASK,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= s5p_hash_cra_init,
+		.cra_exit		= s5p_hash_cra_exit,
+	}
+},
+{
+	.init		= s5p_hash_init,
+	.update		= s5p_hash_update,
+	.final		= s5p_hash_final,
+	.finup		= s5p_hash_finup,
+	.digest		= s5p_hash_digest,
+	.export		= s5p_hash_export,
+	.import		= s5p_hash_import,
+	.halg.statesize = sizeof(struct s5p_hash_reqctx) + BUFLEN,
+	.halg.digestsize	= MD5_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "md5",
+		.cra_driver_name	= "exynos-md5",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+					  CRYPTO_ALG_KERN_DRIVER_ONLY |
+					  CRYPTO_ALG_ASYNC |
+					  CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= HASH_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct s5p_hash_ctx),
+		.cra_alignmask		= SSS_HASH_DMA_ALIGN_MASK,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= s5p_hash_cra_init,
+		.cra_exit		= s5p_hash_cra_exit,
+	}
+},
+{
+	.init		= s5p_hash_init,
+	.update		= s5p_hash_update,
+	.final		= s5p_hash_final,
+	.finup		= s5p_hash_finup,
+	.digest		= s5p_hash_digest,
+	.export		= s5p_hash_export,
+	.import		= s5p_hash_import,
+	.halg.statesize = sizeof(struct s5p_hash_reqctx) + BUFLEN,
+	.halg.digestsize	= SHA256_DIGEST_SIZE,
+	.halg.base	= {
+		.cra_name		= "sha256",
+		.cra_driver_name	= "exynos-sha256",
+		.cra_priority		= 100,
+		.cra_flags		= CRYPTO_ALG_TYPE_AHASH |
+					  CRYPTO_ALG_KERN_DRIVER_ONLY |
+					  CRYPTO_ALG_ASYNC |
+					  CRYPTO_ALG_NEED_FALLBACK,
+		.cra_blocksize		= HASH_BLOCK_SIZE,
+		.cra_ctxsize		= sizeof(struct s5p_hash_ctx),
+		.cra_alignmask		= SSS_HASH_DMA_ALIGN_MASK,
+		.cra_module		= THIS_MODULE,
+		.cra_init		= s5p_hash_cra_init,
+		.cra_exit		= s5p_hash_cra_exit,
+	}
+}
+
+};
+
 static void s5p_set_aes(struct s5p_aes_dev *dev,
 			uint8_t *key, uint8_t *iv, unsigned int keylen)
 {
@@ -829,6 +2154,7 @@ static int s5p_aes_probe(struct platform_device *pdev)
 	struct samsung_aes_variant *variant;
 	struct s5p_aes_dev *pdata;
 	struct resource *res;
+	unsigned int hash_i;
 
 	if (s5p_dev)
 		return -EEXIST;
@@ -837,12 +2163,34 @@ static int s5p_aes_probe(struct platform_device *pdev)
 	if (!pdata)
 		return -ENOMEM;
 
+	variant = find_s5p_sss_version(pdev);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(pdata->ioaddr))
-		return PTR_ERR(pdata->ioaddr);
 
-	variant = find_s5p_sss_version(pdev);
+	/*
+	 * Note: HASH and PRNG uses the same registers in secss, avoid
+	 * overwrite each other. This will drop HASH when CONFIG_EXYNOS_RNG
+	 * is enabled in config. We need larger size for HASH registers in
+	 * secss, current describe only AES/DES
+	 */
+	if (IS_ENABLED(CONFIG_CRYPTO_DEV_EXYNOS_HASH)) {
+		if (variant == &exynos_aes_data) {
+			res->end += 0x300;
+			pdata->use_hash = true;
+		}
+	}
+
+	pdata->res = res;
+	pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(pdata->ioaddr)) {
+		if (!pdata->use_hash)
+			return PTR_ERR(pdata->ioaddr);
+		/* try AES without HASH */
+		res->end -= 0x300;
+		pdata->use_hash = false;
+		pdata->ioaddr = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(pdata->ioaddr))
+			return PTR_ERR(pdata->ioaddr);
+	}
 
 	pdata->clk = devm_clk_get(dev, "secss");
 	if (IS_ERR(pdata->clk)) {
@@ -857,8 +2205,10 @@ static int s5p_aes_probe(struct platform_device *pdev)
 	}
 
 	spin_lock_init(&pdata->lock);
+	spin_lock_init(&pdata->hash_lock);
 
 	pdata->aes_ioaddr = pdata->ioaddr + variant->aes_offset;
+	pdata->io_hash_base = pdata->ioaddr + variant->hash_offset;
 
 	pdata->irq_fc = platform_get_irq(pdev, 0);
 	if (pdata->irq_fc < 0) {
@@ -888,12 +2238,40 @@ static int s5p_aes_probe(struct platform_device *pdev)
 			goto err_algs;
 	}
 
+	if (pdata->use_hash) {
+		tasklet_init(&pdata->hash_tasklet, s5p_hash_tasklet_cb,
+			     (unsigned long)pdata);
+		crypto_init_queue(&pdata->hash_queue, SSS_HASH_QUEUE_LENGTH);
+
+		for (hash_i = 0; hash_i < ARRAY_SIZE(algs_sha1_md5_sha256);
+		     hash_i++) {
+			struct ahash_alg *alg;
+
+			alg = &algs_sha1_md5_sha256[hash_i];
+			err = crypto_register_ahash(alg);
+			if (err) {
+				dev_err(dev, "can't register '%s': %d\n",
+					alg->halg.base.cra_driver_name, err);
+				goto err_hash;
+			}
+		}
+	}
+
 	dev_info(dev, "s5p-sss driver registered\n");
 
 	return 0;
 
+err_hash:
+	for (j = hash_i - 1; j >= 0; j--)
+		crypto_unregister_ahash(&algs_sha1_md5_sha256[j]);
+
+	tasklet_kill(&pdata->hash_tasklet);
+	res->end -= 0x300;
+
 err_algs:
-	dev_err(dev, "can't register '%s': %d\n", algs[i].cra_name, err);
+	if (i < ARRAY_SIZE(algs))
+		dev_err(dev, "can't register '%s': %d\n", algs[i].cra_name,
+			err);
 
 	for (j = 0; j < i; j++)
 		crypto_unregister_alg(&algs[j]);
@@ -920,9 +2298,16 @@ static int s5p_aes_remove(struct platform_device *pdev)
 		crypto_unregister_alg(&algs[i]);
 
 	tasklet_kill(&pdata->tasklet);
+	if (pdata->use_hash) {
+		for (i = ARRAY_SIZE(algs_sha1_md5_sha256) - 1; i >= 0; i--)
+			crypto_unregister_ahash(&algs_sha1_md5_sha256[i]);
 
-	clk_disable_unprepare(pdata->clk);
+		pdata->res->end -= 0x300;
+		tasklet_kill(&pdata->hash_tasklet);
+		pdata->use_hash = false;
+	}
 
+	clk_disable_unprepare(pdata->clk);
 	s5p_dev = NULL;
 
 	return 0;
@@ -942,3 +2327,4 @@ module_platform_driver(s5p_aes_crypto);
 MODULE_DESCRIPTION("S5PV210 AES hw acceleration support.");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Vladimir Zapolskiy <vzapolskiy@gmail.com>");
+MODULE_AUTHOR("Kamil Konieczny <k.konieczny@partner.samsung.com>");
diff --git a/drivers/crypto/stm32/stm32-hash.c b/drivers/crypto/stm32/stm32-hash.c
index b585ce54a802..4ca4a264a833 100644
--- a/drivers/crypto/stm32/stm32-hash.c
+++ b/drivers/crypto/stm32/stm32-hash.c
@@ -553,9 +553,9 @@ static int stm32_hash_dma_send(struct stm32_hash_dev *hdev)
 {
 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(hdev->req);
 	struct scatterlist sg[1], *tsg;
-	int err = 0, len = 0, reg, ncp;
+	int err = 0, len = 0, reg, ncp = 0;
 	unsigned int i;
-	const u32 *buffer = (const u32 *)rctx->buffer;
+	u32 *buffer = (void *)rctx->buffer;
 
 	rctx->sg = hdev->req->src;
 	rctx->total = hdev->req->nbytes;
@@ -620,10 +620,13 @@ static int stm32_hash_dma_send(struct stm32_hash_dev *hdev)
 		reg |= HASH_CR_DMAA;
 		stm32_hash_write(hdev, HASH_CR, reg);
 
-		for (i = 0; i < DIV_ROUND_UP(ncp, sizeof(u32)); i++)
-			stm32_hash_write(hdev, HASH_DIN, buffer[i]);
-
-		stm32_hash_set_nblw(hdev, ncp);
+		if (ncp) {
+			memset(buffer + ncp, 0,
+			       DIV_ROUND_UP(ncp, sizeof(u32)) - ncp);
+			writesl(hdev->io_base + HASH_DIN, buffer,
+				DIV_ROUND_UP(ncp, sizeof(u32)));
+		}
+		stm32_hash_set_nblw(hdev, DIV_ROUND_UP(ncp, sizeof(u32)));
 		reg = stm32_hash_read(hdev, HASH_STR);
 		reg |= HASH_STR_DCAL;
 		stm32_hash_write(hdev, HASH_STR, reg);
@@ -892,7 +895,6 @@ static int stm32_hash_enqueue(struct ahash_request *req, unsigned int op)
 static int stm32_hash_update(struct ahash_request *req)
 {
 	struct stm32_hash_request_ctx *rctx = ahash_request_ctx(req);
-	int ret;
 
 	if (!req->nbytes || !(rctx->flags & HASH_FLAGS_CPU))
 		return 0;
@@ -906,12 +908,7 @@ static int stm32_hash_update(struct ahash_request *req)
 		return 0;
 	}
 
-	ret = stm32_hash_enqueue(req, HASH_OP_UPDATE);
-
-	if (rctx->flags & HASH_FLAGS_FINUP)
-		return ret;
-
-	return 0;
+	return stm32_hash_enqueue(req, HASH_OP_UPDATE);
 }
 
 static int stm32_hash_final(struct ahash_request *req)
@@ -1067,7 +1064,6 @@ static int stm32_hash_cra_sha256_init(struct crypto_tfm *tfm)
 static irqreturn_t stm32_hash_irq_thread(int irq, void *dev_id)
 {
 	struct stm32_hash_dev *hdev = dev_id;
-	int err;
 
 	if (HASH_FLAGS_CPU & hdev->flags) {
 		if (HASH_FLAGS_OUTPUT_READY & hdev->flags) {
@@ -1084,8 +1080,8 @@ static irqreturn_t stm32_hash_irq_thread(int irq, void *dev_id)
 	return IRQ_HANDLED;
 
 finish:
-	/*Finish current request */
-	stm32_hash_finish_req(hdev->req, err);
+	/* Finish current request */
+	stm32_hash_finish_req(hdev->req, 0);
 
 	return IRQ_HANDLED;
 }
@@ -1408,11 +1404,10 @@ MODULE_DEVICE_TABLE(of, stm32_hash_of_match);
 static int stm32_hash_get_of_match(struct stm32_hash_dev *hdev,
 				   struct device *dev)
 {
-	const struct of_device_id *match;
 	int err;
 
-	match = of_match_device(stm32_hash_of_match, dev);
-	if (!match) {
+	hdev->pdata = of_device_get_match_data(dev);
+	if (!hdev->pdata) {
 		dev_err(dev, "no compatible OF match\n");
 		return -EINVAL;
 	}
@@ -1420,8 +1415,6 @@ static int stm32_hash_get_of_match(struct stm32_hash_dev *hdev,
 	err = of_property_read_u32(dev->of_node, "dma-maxburst",
 				   &hdev->dma_maxburst);
 
-	hdev->pdata = match->data;
-
 	return err;
 }
 
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 79791c690858..9c80e0cb1664 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -56,29 +56,26 @@
 #include "talitos.h"
 
 static void to_talitos_ptr(struct talitos_ptr *ptr, dma_addr_t dma_addr,
-			   bool is_sec1)
+			   unsigned int len, bool is_sec1)
 {
 	ptr->ptr = cpu_to_be32(lower_32_bits(dma_addr));
-	if (!is_sec1)
+	if (is_sec1) {
+		ptr->len1 = cpu_to_be16(len);
+	} else {
+		ptr->len = cpu_to_be16(len);
 		ptr->eptr = upper_32_bits(dma_addr);
+	}
 }
 
 static void copy_talitos_ptr(struct talitos_ptr *dst_ptr,
 			     struct talitos_ptr *src_ptr, bool is_sec1)
 {
 	dst_ptr->ptr = src_ptr->ptr;
-	if (!is_sec1)
-		dst_ptr->eptr = src_ptr->eptr;
-}
-
-static void to_talitos_ptr_len(struct talitos_ptr *ptr, unsigned int len,
-			       bool is_sec1)
-{
 	if (is_sec1) {
-		ptr->res = 0;
-		ptr->len1 = cpu_to_be16(len);
+		dst_ptr->len1 = src_ptr->len1;
 	} else {
-		ptr->len = cpu_to_be16(len);
+		dst_ptr->len = src_ptr->len;
+		dst_ptr->eptr = src_ptr->eptr;
 	}
 }
 
@@ -116,9 +113,7 @@ static void map_single_talitos_ptr(struct device *dev,
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
 
-	to_talitos_ptr_len(ptr, len, is_sec1);
-	to_talitos_ptr(ptr, dma_addr, is_sec1);
-	to_talitos_ptr_ext_set(ptr, 0, is_sec1);
+	to_talitos_ptr(ptr, dma_addr, len, is_sec1);
 }
 
 /*
@@ -165,6 +160,10 @@ static int reset_channel(struct device *dev, int ch)
 	/* set 36-bit addressing, done writeback enable and done IRQ enable */
 	setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, TALITOS_CCCR_LO_EAE |
 		  TALITOS_CCCR_LO_CDWE | TALITOS_CCCR_LO_CDIE);
+	/* enable chaining descriptors */
+	if (is_sec1)
+		setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO,
+			  TALITOS_CCCR_LO_NE);
 
 	/* and ICCR writeback, if available */
 	if (priv->features & TALITOS_FTR_HW_AUTH_CHECK)
@@ -287,7 +286,6 @@ int talitos_submit(struct device *dev, int ch, struct talitos_desc *desc,
 	/* map descriptor and save caller data */
 	if (is_sec1) {
 		desc->hdr1 = desc->hdr;
-		desc->next_desc = 0;
 		request->dma_desc = dma_map_single(dev, &desc->hdr1,
 						   TALITOS_DESC_SIZE,
 						   DMA_BIDIRECTIONAL);
@@ -339,7 +337,12 @@ static void flush_channel(struct device *dev, int ch, int error, int reset_ch)
 
 		/* descriptors with their done bits set don't get the error */
 		rmb();
-		hdr = is_sec1 ? request->desc->hdr1 : request->desc->hdr;
+		if (!is_sec1)
+			hdr = request->desc->hdr;
+		else if (request->desc->next_desc)
+			hdr = (request->desc + 1)->hdr1;
+		else
+			hdr = request->desc->hdr1;
 
 		if ((hdr & DESC_HDR_DONE) == DESC_HDR_DONE)
 			status = 0;
@@ -393,8 +396,6 @@ static void talitos1_done_##name(unsigned long data)			\
 									\
 	if (ch_done_mask & 0x10000000)					\
 		flush_channel(dev, 0, 0, 0);			\
-	if (priv->num_channels == 1)					\
-		goto out;						\
 	if (ch_done_mask & 0x40000000)					\
 		flush_channel(dev, 1, 0, 0);			\
 	if (ch_done_mask & 0x00010000)					\
@@ -402,7 +403,6 @@ static void talitos1_done_##name(unsigned long data)			\
 	if (ch_done_mask & 0x00040000)					\
 		flush_channel(dev, 3, 0, 0);			\
 									\
-out:									\
 	/* At this point, all completed channels have been processed */	\
 	/* Unmask done interrupts for channels completed later on. */	\
 	spin_lock_irqsave(&priv->reg_lock, flags);			\
@@ -412,6 +412,7 @@ out:									\
 }
 
 DEF_TALITOS1_DONE(4ch, TALITOS1_ISR_4CHDONE)
+DEF_TALITOS1_DONE(ch0, TALITOS1_ISR_CH_0_DONE)
 
 #define DEF_TALITOS2_DONE(name, ch_done_mask)				\
 static void talitos2_done_##name(unsigned long data)			\
@@ -422,8 +423,6 @@ static void talitos2_done_##name(unsigned long data)			\
 									\
 	if (ch_done_mask & 1)						\
 		flush_channel(dev, 0, 0, 0);				\
-	if (priv->num_channels == 1)					\
-		goto out;						\
 	if (ch_done_mask & (1 << 2))					\
 		flush_channel(dev, 1, 0, 0);				\
 	if (ch_done_mask & (1 << 4))					\
@@ -431,7 +430,6 @@ static void talitos2_done_##name(unsigned long data)			\
 	if (ch_done_mask & (1 << 6))					\
 		flush_channel(dev, 3, 0, 0);				\
 									\
-out:									\
 	/* At this point, all completed channels have been processed */	\
 	/* Unmask done interrupts for channels completed later on. */	\
 	spin_lock_irqsave(&priv->reg_lock, flags);			\
@@ -441,6 +439,7 @@ out:									\
 }
 
 DEF_TALITOS2_DONE(4ch, TALITOS2_ISR_4CHDONE)
+DEF_TALITOS2_DONE(ch0, TALITOS2_ISR_CH_0_DONE)
 DEF_TALITOS2_DONE(ch0_2, TALITOS2_ISR_CH_0_2_DONE)
 DEF_TALITOS2_DONE(ch1_3, TALITOS2_ISR_CH_1_3_DONE)
 
@@ -464,7 +463,8 @@ static u32 current_desc_hdr(struct device *dev, int ch)
 	tail = priv->chan[ch].tail;
 
 	iter = tail;
-	while (priv->chan[ch].fifo[iter].dma_desc != cur_desc) {
+	while (priv->chan[ch].fifo[iter].dma_desc != cur_desc &&
+	       priv->chan[ch].fifo[iter].desc->next_desc != cur_desc) {
 		iter = (iter + 1) & (priv->fifo_len - 1);
 		if (iter == tail) {
 			dev_err(dev, "couldn't locate current descriptor\n");
@@ -472,6 +472,9 @@ static u32 current_desc_hdr(struct device *dev, int ch)
 		}
 	}
 
+	if (priv->chan[ch].fifo[iter].desc->next_desc == cur_desc)
+		return (priv->chan[ch].fifo[iter].desc + 1)->hdr;
+
 	return priv->chan[ch].fifo[iter].desc->hdr;
 }
 
@@ -825,9 +828,12 @@ struct talitos_ctx {
 	__be32 desc_hdr_template;
 	u8 key[TALITOS_MAX_KEY_SIZE];
 	u8 iv[TALITOS_MAX_IV_LENGTH];
+	dma_addr_t dma_key;
 	unsigned int keylen;
 	unsigned int enckeylen;
 	unsigned int authkeylen;
+	dma_addr_t dma_buf;
+	dma_addr_t dma_hw_context;
 };
 
 #define HASH_MAX_BLOCK_SIZE		SHA512_BLOCK_SIZE
@@ -836,8 +842,8 @@ struct talitos_ctx {
 struct talitos_ahash_req_ctx {
 	u32 hw_context[TALITOS_MDEU_MAX_CONTEXT_SIZE / sizeof(u32)];
 	unsigned int hw_context_size;
-	u8 buf[HASH_MAX_BLOCK_SIZE];
-	u8 bufnext[HASH_MAX_BLOCK_SIZE];
+	u8 buf[2][HASH_MAX_BLOCK_SIZE];
+	int buf_idx;
 	unsigned int swinit;
 	unsigned int first;
 	unsigned int last;
@@ -861,6 +867,7 @@ static int aead_setkey(struct crypto_aead *authenc,
 		       const u8 *key, unsigned int keylen)
 {
 	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
+	struct device *dev = ctx->dev;
 	struct crypto_authenc_keys keys;
 
 	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
@@ -869,12 +876,17 @@ static int aead_setkey(struct crypto_aead *authenc,
 	if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE)
 		goto badkey;
 
+	if (ctx->keylen)
+		dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
+
 	memcpy(ctx->key, keys.authkey, keys.authkeylen);
 	memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen);
 
 	ctx->keylen = keys.authkeylen + keys.enckeylen;
 	ctx->enckeylen = keys.enckeylen;
 	ctx->authkeylen = keys.authkeylen;
+	ctx->dma_key = dma_map_single(dev, ctx->key, ctx->keylen,
+				      DMA_TO_DEVICE);
 
 	return 0;
 
@@ -948,13 +960,13 @@ static void ipsec_esp_unmap(struct device *dev,
 	struct crypto_aead *aead = crypto_aead_reqtfm(areq);
 	struct talitos_ctx *ctx = crypto_aead_ctx(aead);
 	unsigned int ivsize = crypto_aead_ivsize(aead);
+	bool is_ipsec_esp = edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP;
+	struct talitos_ptr *civ_ptr = &edesc->desc.ptr[is_ipsec_esp ? 2 : 3];
 
-	if (edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP)
+	if (is_ipsec_esp)
 		unmap_single_talitos_ptr(dev, &edesc->desc.ptr[6],
 					 DMA_FROM_DEVICE);
-	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[3], DMA_TO_DEVICE);
-	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE);
-	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[0], DMA_TO_DEVICE);
+	unmap_single_talitos_ptr(dev, civ_ptr, DMA_TO_DEVICE);
 
 	talitos_sg_unmap(dev, edesc, areq->src, areq->dst, areq->cryptlen,
 			 areq->assoclen);
@@ -963,7 +975,7 @@ static void ipsec_esp_unmap(struct device *dev,
 		dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
 				 DMA_BIDIRECTIONAL);
 
-	if (!(edesc->desc.hdr & DESC_HDR_TYPE_IPSEC_ESP)) {
+	if (!is_ipsec_esp) {
 		unsigned int dst_nents = edesc->dst_nents ? : 1;
 
 		sg_pcopy_to_buffer(areq->dst, dst_nents, ctx->iv, ivsize,
@@ -983,6 +995,7 @@ static void ipsec_esp_encrypt_done(struct device *dev,
 	struct aead_request *areq = context;
 	struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
 	unsigned int authsize = crypto_aead_authsize(authenc);
+	unsigned int ivsize = crypto_aead_ivsize(authenc);
 	struct talitos_edesc *edesc;
 	struct scatterlist *sg;
 	void *icvdata;
@@ -1003,6 +1016,8 @@ static void ipsec_esp_encrypt_done(struct device *dev,
 		       icvdata, authsize);
 	}
 
+	dma_unmap_single(dev, edesc->iv_dma, ivsize, DMA_TO_DEVICE);
+
 	kfree(edesc);
 
 	aead_request_complete(areq, err);
@@ -1097,8 +1112,7 @@ static int sg_to_link_tbl_offset(struct scatterlist *sg, int sg_count,
 			len = cryptlen;
 
 		to_talitos_ptr(link_tbl_ptr + count,
-			       sg_dma_address(sg) + offset, 0);
-		to_talitos_ptr_len(link_tbl_ptr + count, len, 0);
+			       sg_dma_address(sg) + offset, len, 0);
 		to_talitos_ptr_ext_set(link_tbl_ptr + count, 0, 0);
 		count++;
 		cryptlen -= len;
@@ -1116,7 +1130,7 @@ next:
 	return count;
 }
 
-int talitos_sg_map(struct device *dev, struct scatterlist *src,
+static int talitos_sg_map(struct device *dev, struct scatterlist *src,
 		   unsigned int len, struct talitos_edesc *edesc,
 		   struct talitos_ptr *ptr,
 		   int sg_count, unsigned int offset, int tbl_off)
@@ -1124,15 +1138,12 @@ int talitos_sg_map(struct device *dev, struct scatterlist *src,
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
 
-	to_talitos_ptr_len(ptr, len, is_sec1);
-	to_talitos_ptr_ext_set(ptr, 0, is_sec1);
-
 	if (sg_count == 1) {
-		to_talitos_ptr(ptr, sg_dma_address(src) + offset, is_sec1);
+		to_talitos_ptr(ptr, sg_dma_address(src) + offset, len, is_sec1);
 		return sg_count;
 	}
 	if (is_sec1) {
-		to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, is_sec1);
+		to_talitos_ptr(ptr, edesc->dma_link_tbl + offset, len, is_sec1);
 		return sg_count;
 	}
 	sg_count = sg_to_link_tbl_offset(src, sg_count, offset, len,
@@ -1143,7 +1154,7 @@ int talitos_sg_map(struct device *dev, struct scatterlist *src,
 		return sg_count;
 	}
 	to_talitos_ptr(ptr, edesc->dma_link_tbl +
-			    tbl_off * sizeof(struct talitos_ptr), is_sec1);
+			    tbl_off * sizeof(struct talitos_ptr), len, is_sec1);
 	to_talitos_ptr_ext_or(ptr, DESC_PTR_LNKTBL_JUMP, is_sec1);
 
 	return sg_count;
@@ -1170,10 +1181,12 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
 	bool sync_needed = false;
 	struct talitos_private *priv = dev_get_drvdata(dev);
 	bool is_sec1 = has_ftr_sec1(priv);
+	bool is_ipsec_esp = desc->hdr & DESC_HDR_TYPE_IPSEC_ESP;
+	struct talitos_ptr *civ_ptr = &desc->ptr[is_ipsec_esp ? 2 : 3];
+	struct talitos_ptr *ckey_ptr = &desc->ptr[is_ipsec_esp ? 3 : 2];
 
 	/* hmac key */
-	map_single_talitos_ptr(dev, &desc->ptr[0], ctx->authkeylen, &ctx->key,
-			       DMA_TO_DEVICE);
+	to_talitos_ptr(&desc->ptr[0], ctx->dma_key, ctx->authkeylen, is_sec1);
 
 	sg_count = edesc->src_nents ?: 1;
 	if (is_sec1 && sg_count > 1)
@@ -1194,25 +1207,11 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
 	}
 
 	/* cipher iv */
-	if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) {
-		to_talitos_ptr(&desc->ptr[2], edesc->iv_dma, is_sec1);
-		to_talitos_ptr_len(&desc->ptr[2], ivsize, is_sec1);
-		to_talitos_ptr_ext_set(&desc->ptr[2], 0, is_sec1);
-	} else {
-		to_talitos_ptr(&desc->ptr[3], edesc->iv_dma, is_sec1);
-		to_talitos_ptr_len(&desc->ptr[3], ivsize, is_sec1);
-		to_talitos_ptr_ext_set(&desc->ptr[3], 0, is_sec1);
-	}
+	to_talitos_ptr(civ_ptr, edesc->iv_dma, ivsize, is_sec1);
 
 	/* cipher key */
-	if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
-		map_single_talitos_ptr(dev, &desc->ptr[3], ctx->enckeylen,
-				       (char *)&ctx->key + ctx->authkeylen,
-				       DMA_TO_DEVICE);
-	else
-		map_single_talitos_ptr(dev, &desc->ptr[2], ctx->enckeylen,
-				       (char *)&ctx->key + ctx->authkeylen,
-				       DMA_TO_DEVICE);
+	to_talitos_ptr(ckey_ptr, ctx->dma_key  + ctx->authkeylen,
+		       ctx->enckeylen, is_sec1);
 
 	/*
 	 * cipher in
@@ -1220,24 +1219,20 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
 	 * extent is bytes of HMAC postpended to ciphertext,
 	 * typically 12 for ipsec
 	 */
-	to_talitos_ptr_len(&desc->ptr[4], cryptlen, is_sec1);
-	to_talitos_ptr_ext_set(&desc->ptr[4], 0, is_sec1);
-
 	sg_link_tbl_len = cryptlen;
 
-	if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) {
+	if (is_ipsec_esp) {
 		to_talitos_ptr_ext_set(&desc->ptr[4], authsize, is_sec1);
 
-		if (edesc->desc.hdr & DESC_HDR_MODE1_MDEU_CICV)
+		if (desc->hdr & DESC_HDR_MODE1_MDEU_CICV)
 			sg_link_tbl_len += authsize;
 	}
 
-	sg_count = talitos_sg_map(dev, areq->src, cryptlen, edesc,
-				  &desc->ptr[4], sg_count, areq->assoclen,
-				  tbl_off);
+	ret = talitos_sg_map(dev, areq->src, sg_link_tbl_len, edesc,
+			     &desc->ptr[4], sg_count, areq->assoclen, tbl_off);
 
-	if (sg_count > 1) {
-		tbl_off += sg_count;
+	if (ret > 1) {
+		tbl_off += ret;
 		sync_needed = true;
 	}
 
@@ -1248,47 +1243,59 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
 			dma_map_sg(dev, areq->dst, sg_count, DMA_FROM_DEVICE);
 	}
 
-	sg_count = talitos_sg_map(dev, areq->dst, cryptlen, edesc,
-				  &desc->ptr[5], sg_count, areq->assoclen,
-				  tbl_off);
+	ret = talitos_sg_map(dev, areq->dst, cryptlen, edesc, &desc->ptr[5],
+			     sg_count, areq->assoclen, tbl_off);
 
-	if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
+	if (is_ipsec_esp)
 		to_talitos_ptr_ext_or(&desc->ptr[5], authsize, is_sec1);
 
-	if (sg_count > 1) {
+	/* ICV data */
+	if (ret > 1) {
+		tbl_off += ret;
 		edesc->icv_ool = true;
 		sync_needed = true;
 
-		if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP) {
+		if (is_ipsec_esp) {
 			struct talitos_ptr *tbl_ptr = &edesc->link_tbl[tbl_off];
 			int offset = (edesc->src_nents + edesc->dst_nents + 2) *
 				     sizeof(struct talitos_ptr) + authsize;
 
 			/* Add an entry to the link table for ICV data */
-			tbl_ptr += sg_count - 1;
-			to_talitos_ptr_ext_set(tbl_ptr, 0, is_sec1);
-			tbl_ptr++;
+			to_talitos_ptr_ext_set(tbl_ptr - 1, 0, is_sec1);
 			to_talitos_ptr_ext_set(tbl_ptr, DESC_PTR_LNKTBL_RETURN,
 					       is_sec1);
-			to_talitos_ptr_len(tbl_ptr, authsize, is_sec1);
 
 			/* icv data follows link tables */
 			to_talitos_ptr(tbl_ptr, edesc->dma_link_tbl + offset,
-				       is_sec1);
+				       authsize, is_sec1);
+		} else {
+			dma_addr_t addr = edesc->dma_link_tbl;
+
+			if (is_sec1)
+				addr += areq->assoclen + cryptlen;
+			else
+				addr += sizeof(struct talitos_ptr) * tbl_off;
+
+			to_talitos_ptr(&desc->ptr[6], addr, authsize, is_sec1);
+		}
+	} else if (!is_ipsec_esp) {
+		ret = talitos_sg_map(dev, areq->dst, authsize, edesc,
+				     &desc->ptr[6], sg_count, areq->assoclen +
+							      cryptlen,
+				     tbl_off);
+		if (ret > 1) {
+			tbl_off += ret;
+			edesc->icv_ool = true;
+			sync_needed = true;
+		} else {
+			edesc->icv_ool = false;
 		}
 	} else {
 		edesc->icv_ool = false;
 	}
 
-	/* ICV data */
-	if (!(desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)) {
-		to_talitos_ptr_len(&desc->ptr[6], authsize, is_sec1);
-		to_talitos_ptr(&desc->ptr[6], edesc->dma_link_tbl +
-			       areq->assoclen + cryptlen, is_sec1);
-	}
-
 	/* iv out */
-	if (desc->hdr & DESC_HDR_TYPE_IPSEC_ESP)
+	if (is_ipsec_esp)
 		map_single_talitos_ptr(dev, &desc->ptr[6], ivsize, ctx->iv,
 				       DMA_FROM_DEVICE);
 
@@ -1387,22 +1394,31 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
 		alloc_len += icv_stashing ? authsize : 0;
 	}
 
+	/* if its a ahash, add space for a second desc next to the first one */
+	if (is_sec1 && !dst)
+		alloc_len += sizeof(struct talitos_desc);
+
 	edesc = kmalloc(alloc_len, GFP_DMA | flags);
 	if (!edesc) {
 		dev_err(dev, "could not allocate edescriptor\n");
 		err = ERR_PTR(-ENOMEM);
 		goto error_sg;
 	}
+	memset(&edesc->desc, 0, sizeof(edesc->desc));
 
 	edesc->src_nents = src_nents;
 	edesc->dst_nents = dst_nents;
 	edesc->iv_dma = iv_dma;
 	edesc->dma_len = dma_len;
-	if (dma_len)
-		edesc->dma_link_tbl = dma_map_single(dev, &edesc->link_tbl[0],
+	if (dma_len) {
+		void *addr = &edesc->link_tbl[0];
+
+		if (is_sec1 && !dst)
+			addr += sizeof(struct talitos_desc);
+		edesc->dma_link_tbl = dma_map_single(dev, addr,
 						     edesc->dma_len,
 						     DMA_BIDIRECTIONAL);
-
+	}
 	return edesc;
 error_sg:
 	if (iv_dma)
@@ -1468,7 +1484,6 @@ static int aead_decrypt(struct aead_request *req)
 				  DESC_HDR_MODE1_MDEU_CICV;
 
 		/* reset integrity check result bits */
-		edesc->desc.hdr_lo = 0;
 
 		return ipsec_esp(edesc, req, ipsec_esp_decrypt_hwauth_done);
 	}
@@ -1494,15 +1509,29 @@ static int ablkcipher_setkey(struct crypto_ablkcipher *cipher,
 			     const u8 *key, unsigned int keylen)
 {
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
+	struct device *dev = ctx->dev;
+	u32 tmp[DES_EXPKEY_WORDS];
 
 	if (keylen > TALITOS_MAX_KEY_SIZE) {
 		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN);
 		return -EINVAL;
 	}
 
+	if (unlikely(crypto_ablkcipher_get_flags(cipher) &
+		     CRYPTO_TFM_REQ_WEAK_KEY) &&
+	    !des_ekey(tmp, key)) {
+		crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_WEAK_KEY);
+		return -EINVAL;
+	}
+
+	if (ctx->keylen)
+		dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
+
 	memcpy(&ctx->key, key, keylen);
 	ctx->keylen = keylen;
 
+	ctx->dma_key = dma_map_single(dev, ctx->key, keylen, DMA_TO_DEVICE);
+
 	return 0;
 }
 
@@ -1513,7 +1542,6 @@ static void common_nonsnoop_unmap(struct device *dev,
 	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
 
 	talitos_sg_unmap(dev, edesc, areq->src, areq->dst, areq->nbytes, 0);
-	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2], DMA_TO_DEVICE);
 	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1], DMA_TO_DEVICE);
 
 	if (edesc->dma_len)
@@ -1555,16 +1583,12 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
 	bool is_sec1 = has_ftr_sec1(priv);
 
 	/* first DWORD empty */
-	desc->ptr[0] = zero_entry;
 
 	/* cipher iv */
-	to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, is_sec1);
-	to_talitos_ptr_len(&desc->ptr[1], ivsize, is_sec1);
-	to_talitos_ptr_ext_set(&desc->ptr[1], 0, is_sec1);
+	to_talitos_ptr(&desc->ptr[1], edesc->iv_dma, ivsize, is_sec1);
 
 	/* cipher key */
-	map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,
-			       (char *)&ctx->key, DMA_TO_DEVICE);
+	to_talitos_ptr(&desc->ptr[2], ctx->dma_key, ctx->keylen, is_sec1);
 
 	sg_count = edesc->src_nents ?: 1;
 	if (is_sec1 && sg_count > 1)
@@ -1599,7 +1623,6 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
 			       DMA_FROM_DEVICE);
 
 	/* last DWORD empty */
-	desc->ptr[6] = zero_entry;
 
 	if (sync_needed)
 		dma_sync_single_for_device(dev, edesc->dma_link_tbl,
@@ -1663,26 +1686,16 @@ static void common_nonsnoop_hash_unmap(struct device *dev,
 				       struct ahash_request *areq)
 {
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
-	struct talitos_private *priv = dev_get_drvdata(dev);
-	bool is_sec1 = has_ftr_sec1(priv);
-
-	unmap_single_talitos_ptr(dev, &edesc->desc.ptr[5], DMA_FROM_DEVICE);
 
 	talitos_sg_unmap(dev, edesc, req_ctx->psrc, NULL, 0, 0);
 
-	/* When using hashctx-in, must unmap it. */
-	if (from_talitos_ptr_len(&edesc->desc.ptr[1], is_sec1))
-		unmap_single_talitos_ptr(dev, &edesc->desc.ptr[1],
-					 DMA_TO_DEVICE);
-
-	if (from_talitos_ptr_len(&edesc->desc.ptr[2], is_sec1))
-		unmap_single_talitos_ptr(dev, &edesc->desc.ptr[2],
-					 DMA_TO_DEVICE);
-
 	if (edesc->dma_len)
 		dma_unmap_single(dev, edesc->dma_link_tbl, edesc->dma_len,
 				 DMA_BIDIRECTIONAL);
 
+	if (edesc->desc.next_desc)
+		dma_unmap_single(dev, be32_to_cpu(edesc->desc.next_desc),
+				 TALITOS_DESC_SIZE, DMA_BIDIRECTIONAL);
 }
 
 static void ahash_done(struct device *dev,
@@ -1696,7 +1709,7 @@ static void ahash_done(struct device *dev,
 
 	if (!req_ctx->last && req_ctx->to_hash_later) {
 		/* Position any partial block for next update/final/finup */
-		memcpy(req_ctx->buf, req_ctx->bufnext, req_ctx->to_hash_later);
+		req_ctx->buf_idx = (req_ctx->buf_idx + 1) & 1;
 		req_ctx->nbuf = req_ctx->to_hash_later;
 	}
 	common_nonsnoop_hash_unmap(dev, edesc, areq);
@@ -1710,7 +1723,7 @@ static void ahash_done(struct device *dev,
  * SEC1 doesn't like hashing of 0 sized message, so we do the padding
  * ourself and submit a padded block
  */
-void talitos_handle_buggy_hash(struct talitos_ctx *ctx,
+static void talitos_handle_buggy_hash(struct talitos_ctx *ctx,
 			       struct talitos_edesc *edesc,
 			       struct talitos_ptr *ptr)
 {
@@ -1729,6 +1742,7 @@ void talitos_handle_buggy_hash(struct talitos_ctx *ctx,
 
 static int common_nonsnoop_hash(struct talitos_edesc *edesc,
 				struct ahash_request *areq, unsigned int length,
+				unsigned int offset,
 				void (*callback) (struct device *dev,
 						  struct talitos_desc *desc,
 						  void *context, int error))
@@ -1745,44 +1759,48 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
 	int sg_count;
 
 	/* first DWORD empty */
-	desc->ptr[0] = zero_entry;
 
 	/* hash context in */
 	if (!req_ctx->first || req_ctx->swinit) {
-		map_single_talitos_ptr(dev, &desc->ptr[1],
-				       req_ctx->hw_context_size,
-				       (char *)req_ctx->hw_context,
-				       DMA_TO_DEVICE);
+		to_talitos_ptr(&desc->ptr[1], ctx->dma_hw_context,
+			       req_ctx->hw_context_size, is_sec1);
 		req_ctx->swinit = 0;
-	} else {
-		desc->ptr[1] = zero_entry;
-		/* Indicate next op is not the first. */
-		req_ctx->first = 0;
 	}
+	/* Indicate next op is not the first. */
+	req_ctx->first = 0;
 
 	/* HMAC key */
 	if (ctx->keylen)
-		map_single_talitos_ptr(dev, &desc->ptr[2], ctx->keylen,
-				       (char *)&ctx->key, DMA_TO_DEVICE);
-	else
-		desc->ptr[2] = zero_entry;
+		to_talitos_ptr(&desc->ptr[2], ctx->dma_key, ctx->keylen,
+			       is_sec1);
+
+	if (is_sec1 && req_ctx->nbuf)
+		length -= req_ctx->nbuf;
 
 	sg_count = edesc->src_nents ?: 1;
 	if (is_sec1 && sg_count > 1)
-		sg_copy_to_buffer(areq->src, sg_count, edesc->buf, length);
-	else
+		sg_pcopy_to_buffer(req_ctx->psrc, sg_count,
+				   edesc->buf + sizeof(struct talitos_desc),
+				   length, req_ctx->nbuf);
+	else if (length)
 		sg_count = dma_map_sg(dev, req_ctx->psrc, sg_count,
 				      DMA_TO_DEVICE);
 	/*
 	 * data in
 	 */
-	sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
-				  &desc->ptr[3], sg_count, 0, 0);
-	if (sg_count > 1)
-		sync_needed = true;
+	if (is_sec1 && req_ctx->nbuf) {
+		dma_addr_t dma_buf = ctx->dma_buf + req_ctx->buf_idx *
+						    HASH_MAX_BLOCK_SIZE;
+
+		to_talitos_ptr(&desc->ptr[3], dma_buf, req_ctx->nbuf, is_sec1);
+	} else {
+		sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
+					  &desc->ptr[3], sg_count, offset, 0);
+		if (sg_count > 1)
+			sync_needed = true;
+	}
 
 	/* fifth DWORD empty */
-	desc->ptr[4] = zero_entry;
 
 	/* hash/HMAC out -or- hash context out */
 	if (req_ctx->last)
@@ -1790,16 +1808,44 @@ static int common_nonsnoop_hash(struct talitos_edesc *edesc,
 				       crypto_ahash_digestsize(tfm),
 				       areq->result, DMA_FROM_DEVICE);
 	else
-		map_single_talitos_ptr(dev, &desc->ptr[5],
-				       req_ctx->hw_context_size,
-				       req_ctx->hw_context, DMA_FROM_DEVICE);
+		to_talitos_ptr(&desc->ptr[5], ctx->dma_hw_context,
+			       req_ctx->hw_context_size, is_sec1);
 
 	/* last DWORD empty */
-	desc->ptr[6] = zero_entry;
 
 	if (is_sec1 && from_talitos_ptr_len(&desc->ptr[3], true) == 0)
 		talitos_handle_buggy_hash(ctx, edesc, &desc->ptr[3]);
 
+	if (is_sec1 && req_ctx->nbuf && length) {
+		struct talitos_desc *desc2 = desc + 1;
+		dma_addr_t next_desc;
+
+		memset(desc2, 0, sizeof(*desc2));
+		desc2->hdr = desc->hdr;
+		desc2->hdr &= ~DESC_HDR_MODE0_MDEU_INIT;
+		desc2->hdr1 = desc2->hdr;
+		desc->hdr &= ~DESC_HDR_MODE0_MDEU_PAD;
+		desc->hdr |= DESC_HDR_MODE0_MDEU_CONT;
+		desc->hdr &= ~DESC_HDR_DONE_NOTIFY;
+
+		to_talitos_ptr(&desc2->ptr[1], ctx->dma_hw_context,
+			       req_ctx->hw_context_size, is_sec1);
+
+		copy_talitos_ptr(&desc2->ptr[2], &desc->ptr[2], is_sec1);
+		sg_count = talitos_sg_map(dev, req_ctx->psrc, length, edesc,
+					  &desc2->ptr[3], sg_count, offset, 0);
+		if (sg_count > 1)
+			sync_needed = true;
+		copy_talitos_ptr(&desc2->ptr[5], &desc->ptr[5], is_sec1);
+		if (req_ctx->last)
+			to_talitos_ptr(&desc->ptr[5], ctx->dma_hw_context,
+				       req_ctx->hw_context_size, is_sec1);
+
+		next_desc = dma_map_single(dev, &desc2->hdr1, TALITOS_DESC_SIZE,
+					   DMA_BIDIRECTIONAL);
+		desc->next_desc = cpu_to_be32(next_desc);
+	}
+
 	if (sync_needed)
 		dma_sync_single_for_device(dev, edesc->dma_link_tbl,
 					   edesc->dma_len, DMA_BIDIRECTIONAL);
@@ -1818,6 +1864,11 @@ static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct talitos_private *priv = dev_get_drvdata(ctx->dev);
+	bool is_sec1 = has_ftr_sec1(priv);
+
+	if (is_sec1)
+		nbytes -= req_ctx->nbuf;
 
 	return talitos_edesc_alloc(ctx->dev, req_ctx->psrc, NULL, NULL, 0,
 				   nbytes, 0, 0, 0, areq->base.flags, false);
@@ -1826,17 +1877,35 @@ static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
 static int ahash_init(struct ahash_request *areq)
 {
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct device *dev = ctx->dev;
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	unsigned int size;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	bool is_sec1 = has_ftr_sec1(priv);
 
 	/* Initialize the context */
+	req_ctx->buf_idx = 0;
 	req_ctx->nbuf = 0;
 	req_ctx->first = 1; /* first indicates h/w must init its context */
 	req_ctx->swinit = 0; /* assume h/w init of context */
-	req_ctx->hw_context_size =
-		(crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
+	size =	(crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
 			? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
 			: TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
+	req_ctx->hw_context_size = size;
 
+	if (ctx->dma_hw_context)
+		dma_unmap_single(dev, ctx->dma_hw_context, size,
+				 DMA_BIDIRECTIONAL);
+	ctx->dma_hw_context = dma_map_single(dev, req_ctx->hw_context, size,
+					     DMA_BIDIRECTIONAL);
+	if (ctx->dma_buf)
+		dma_unmap_single(dev, ctx->dma_buf, sizeof(req_ctx->buf),
+				 DMA_TO_DEVICE);
+	if (is_sec1)
+		ctx->dma_buf = dma_map_single(dev, req_ctx->buf,
+					      sizeof(req_ctx->buf),
+					      DMA_TO_DEVICE);
 	return 0;
 }
 
@@ -1847,6 +1916,9 @@ static int ahash_init(struct ahash_request *areq)
 static int ahash_init_sha224_swinit(struct ahash_request *areq)
 {
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
+	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct device *dev = ctx->dev;
 
 	ahash_init(areq);
 	req_ctx->swinit = 1;/* prevent h/w initting context with sha256 values*/
@@ -1864,6 +1936,9 @@ static int ahash_init_sha224_swinit(struct ahash_request *areq)
 	req_ctx->hw_context[8] = 0;
 	req_ctx->hw_context[9] = 0;
 
+	dma_sync_single_for_device(dev, ctx->dma_hw_context,
+				   req_ctx->hw_context_size, DMA_TO_DEVICE);
+
 	return 0;
 }
 
@@ -1879,6 +1954,11 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
 	unsigned int to_hash_later;
 	unsigned int nsg;
 	int nents;
+	struct device *dev = ctx->dev;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	bool is_sec1 = has_ftr_sec1(priv);
+	int offset = 0;
+	u8 *ctx_buf = req_ctx->buf[req_ctx->buf_idx];
 
 	if (!req_ctx->last && (nbytes + req_ctx->nbuf <= blocksize)) {
 		/* Buffer up to one whole block */
@@ -1888,7 +1968,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
 			return nents;
 		}
 		sg_copy_to_buffer(areq->src, nents,
-				  req_ctx->buf + req_ctx->nbuf, nbytes);
+				  ctx_buf + req_ctx->nbuf, nbytes);
 		req_ctx->nbuf += nbytes;
 		return 0;
 	}
@@ -1909,13 +1989,27 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
 	}
 
 	/* Chain in any previously buffered data */
-	if (req_ctx->nbuf) {
+	if (!is_sec1 && req_ctx->nbuf) {
 		nsg = (req_ctx->nbuf < nbytes_to_hash) ? 2 : 1;
 		sg_init_table(req_ctx->bufsl, nsg);
-		sg_set_buf(req_ctx->bufsl, req_ctx->buf, req_ctx->nbuf);
+		sg_set_buf(req_ctx->bufsl, ctx_buf, req_ctx->nbuf);
 		if (nsg > 1)
 			sg_chain(req_ctx->bufsl, 2, areq->src);
 		req_ctx->psrc = req_ctx->bufsl;
+	} else if (is_sec1 && req_ctx->nbuf && req_ctx->nbuf < blocksize) {
+		if (nbytes_to_hash > blocksize)
+			offset = blocksize - req_ctx->nbuf;
+		else
+			offset = nbytes_to_hash - req_ctx->nbuf;
+		nents = sg_nents_for_len(areq->src, offset);
+		if (nents < 0) {
+			dev_err(ctx->dev, "Invalid number of src SG.\n");
+			return nents;
+		}
+		sg_copy_to_buffer(areq->src, nents,
+				  ctx_buf + req_ctx->nbuf, offset);
+		req_ctx->nbuf += offset;
+		req_ctx->psrc = areq->src;
 	} else
 		req_ctx->psrc = areq->src;
 
@@ -1926,7 +2020,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
 			return nents;
 		}
 		sg_pcopy_to_buffer(areq->src, nents,
-				      req_ctx->bufnext,
+				   req_ctx->buf[(req_ctx->buf_idx + 1) & 1],
 				      to_hash_later,
 				      nbytes - to_hash_later);
 	}
@@ -1948,6 +2042,13 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
 	/* request SEC to INIT hash. */
 	if (req_ctx->first && !req_ctx->swinit)
 		edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_INIT;
+	if (is_sec1) {
+		dma_addr_t dma_buf = ctx->dma_buf + req_ctx->buf_idx *
+						    HASH_MAX_BLOCK_SIZE;
+
+		dma_sync_single_for_device(dev, dma_buf,
+					   req_ctx->nbuf, DMA_TO_DEVICE);
+	}
 
 	/* When the tfm context has a keylen, it's an HMAC.
 	 * A first or last (ie. not middle) descriptor must request HMAC.
@@ -1955,7 +2056,7 @@ static int ahash_process_req(struct ahash_request *areq, unsigned int nbytes)
 	if (ctx->keylen && (req_ctx->first || req_ctx->last))
 		edesc->desc.hdr |= DESC_HDR_MODE0_MDEU_HMAC;
 
-	return common_nonsnoop_hash(edesc, areq, nbytes_to_hash,
+	return common_nonsnoop_hash(edesc, areq, nbytes_to_hash, offset,
 				    ahash_done);
 }
 
@@ -2001,10 +2102,15 @@ static int ahash_export(struct ahash_request *areq, void *out)
 {
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
 	struct talitos_export_state *export = out;
+	struct crypto_ahash *ahash = crypto_ahash_reqtfm(areq);
+	struct talitos_ctx *ctx = crypto_ahash_ctx(ahash);
+	struct device *dev = ctx->dev;
 
+	dma_sync_single_for_cpu(dev, ctx->dma_hw_context,
+				req_ctx->hw_context_size, DMA_FROM_DEVICE);
 	memcpy(export->hw_context, req_ctx->hw_context,
 	       req_ctx->hw_context_size);
-	memcpy(export->buf, req_ctx->buf, req_ctx->nbuf);
+	memcpy(export->buf, req_ctx->buf[req_ctx->buf_idx], req_ctx->nbuf);
 	export->swinit = req_ctx->swinit;
 	export->first = req_ctx->first;
 	export->last = req_ctx->last;
@@ -2019,15 +2125,32 @@ static int ahash_import(struct ahash_request *areq, const void *in)
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
 	const struct talitos_export_state *export = in;
+	unsigned int size;
+	struct talitos_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct device *dev = ctx->dev;
+	struct talitos_private *priv = dev_get_drvdata(dev);
+	bool is_sec1 = has_ftr_sec1(priv);
 
 	memset(req_ctx, 0, sizeof(*req_ctx));
-	req_ctx->hw_context_size =
-		(crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
+	size = (crypto_ahash_digestsize(tfm) <= SHA256_DIGEST_SIZE)
 			? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
 			: TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
-	memcpy(req_ctx->hw_context, export->hw_context,
-	       req_ctx->hw_context_size);
-	memcpy(req_ctx->buf, export->buf, export->nbuf);
+	req_ctx->hw_context_size = size;
+	if (ctx->dma_hw_context)
+		dma_unmap_single(dev, ctx->dma_hw_context, size,
+				 DMA_BIDIRECTIONAL);
+
+	memcpy(req_ctx->hw_context, export->hw_context, size);
+	ctx->dma_hw_context = dma_map_single(dev, req_ctx->hw_context, size,
+					     DMA_BIDIRECTIONAL);
+	if (ctx->dma_buf)
+		dma_unmap_single(dev, ctx->dma_buf, sizeof(req_ctx->buf),
+				 DMA_TO_DEVICE);
+	memcpy(req_ctx->buf[0], export->buf, export->nbuf);
+	if (is_sec1)
+		ctx->dma_buf = dma_map_single(dev, req_ctx->buf,
+					      sizeof(req_ctx->buf),
+					      DMA_TO_DEVICE);
 	req_ctx->swinit = export->swinit;
 	req_ctx->first = export->first;
 	req_ctx->last = export->last;
@@ -2037,22 +2160,6 @@ static int ahash_import(struct ahash_request *areq, const void *in)
 	return 0;
 }
 
-struct keyhash_result {
-	struct completion completion;
-	int err;
-};
-
-static void keyhash_complete(struct crypto_async_request *req, int err)
-{
-	struct keyhash_result *res = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	res->err = err;
-	complete(&res->completion);
-}
-
 static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
 		   u8 *hash)
 {
@@ -2060,10 +2167,10 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
 
 	struct scatterlist sg[1];
 	struct ahash_request *req;
-	struct keyhash_result hresult;
+	struct crypto_wait wait;
 	int ret;
 
-	init_completion(&hresult.completion);
+	crypto_init_wait(&wait);
 
 	req = ahash_request_alloc(tfm, GFP_KERNEL);
 	if (!req)
@@ -2072,25 +2179,13 @@ static int keyhash(struct crypto_ahash *tfm, const u8 *key, unsigned int keylen,
 	/* Keep tfm keylen == 0 during hash of the long key */
 	ctx->keylen = 0;
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				   keyhash_complete, &hresult);
+				   crypto_req_done, &wait);
 
 	sg_init_one(&sg[0], key, keylen);
 
 	ahash_request_set_crypt(req, sg, hash, keylen);
-	ret = crypto_ahash_digest(req);
-	switch (ret) {
-	case 0:
-		break;
-	case -EINPROGRESS:
-	case -EBUSY:
-		ret = wait_for_completion_interruptible(
-			&hresult.completion);
-		if (!ret)
-			ret = hresult.err;
-		break;
-	default:
-		break;
-	}
+	ret = crypto_wait_req(crypto_ahash_digest(req), &wait);
+
 	ahash_request_free(req);
 
 	return ret;
@@ -2100,6 +2195,7 @@ static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
 			unsigned int keylen)
 {
 	struct talitos_ctx *ctx = crypto_tfm_ctx(crypto_ahash_tfm(tfm));
+	struct device *dev = ctx->dev;
 	unsigned int blocksize =
 			crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
 	unsigned int digestsize = crypto_ahash_digestsize(tfm);
@@ -2122,7 +2218,11 @@ static int ahash_setkey(struct crypto_ahash *tfm, const u8 *key,
 		memcpy(ctx->key, hash, digestsize);
 	}
 
+	if (ctx->keylen)
+		dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
+
 	ctx->keylen = keysize;
+	ctx->dma_key = dma_map_single(dev, ctx->key, keysize, DMA_TO_DEVICE);
 
 	return 0;
 }
@@ -2614,7 +2714,7 @@ static struct talitos_alg_template driver_algs[] = {
 				.ivsize = AES_BLOCK_SIZE,
 			}
 		},
-		.desc_hdr_template = DESC_HDR_TYPE_COMMON_NONSNOOP_NO_AFEU |
+		.desc_hdr_template = DESC_HDR_TYPE_AESU_CTR_NONSNOOP |
 				     DESC_HDR_SEL0_AESU |
 				     DESC_HDR_MODE0_AESU_CTR,
 	},
@@ -2951,6 +3051,36 @@ static int talitos_cra_init_ahash(struct crypto_tfm *tfm)
 	return 0;
 }
 
+static void talitos_cra_exit(struct crypto_tfm *tfm)
+{
+	struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct device *dev = ctx->dev;
+
+	if (ctx->keylen)
+		dma_unmap_single(dev, ctx->dma_key, ctx->keylen, DMA_TO_DEVICE);
+}
+
+static void talitos_cra_exit_ahash(struct crypto_tfm *tfm)
+{
+	struct talitos_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct device *dev = ctx->dev;
+	unsigned int size;
+
+	talitos_cra_exit(tfm);
+
+	size = (crypto_ahash_digestsize(__crypto_ahash_cast(tfm)) <=
+		SHA256_DIGEST_SIZE)
+	       ? TALITOS_MDEU_CONTEXT_SIZE_MD5_SHA1_SHA256
+	       : TALITOS_MDEU_CONTEXT_SIZE_SHA384_SHA512;
+
+	if (ctx->dma_hw_context)
+		dma_unmap_single(dev, ctx->dma_hw_context, size,
+				 DMA_BIDIRECTIONAL);
+	if (ctx->dma_buf)
+		dma_unmap_single(dev, ctx->dma_buf, HASH_MAX_BLOCK_SIZE * 2,
+				 DMA_TO_DEVICE);
+}
+
 /*
  * given the alg's descriptor header template, determine whether descriptor
  * type and primary/secondary execution units required match the hw
@@ -2989,17 +3119,11 @@ static int talitos_remove(struct platform_device *ofdev)
 			break;
 		}
 		list_del(&t_alg->entry);
-		kfree(t_alg);
 	}
 
 	if (hw_supports(dev, DESC_HDR_SEL0_RNG))
 		talitos_unregister_rng(dev);
 
-	for (i = 0; priv->chan && i < priv->num_channels; i++)
-		kfree(priv->chan[i].fifo);
-
-	kfree(priv->chan);
-
 	for (i = 0; i < 2; i++)
 		if (priv->irq[i]) {
 			free_irq(priv->irq[i], dev);
@@ -3010,10 +3134,6 @@ static int talitos_remove(struct platform_device *ofdev)
 	if (priv->irq[1])
 		tasklet_kill(&priv->done_task[1]);
 
-	iounmap(priv->reg);
-
-	kfree(priv);
-
 	return 0;
 }
 
@@ -3025,7 +3145,8 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
 	struct talitos_crypto_alg *t_alg;
 	struct crypto_alg *alg;
 
-	t_alg = kzalloc(sizeof(struct talitos_crypto_alg), GFP_KERNEL);
+	t_alg = devm_kzalloc(dev, sizeof(struct talitos_crypto_alg),
+			     GFP_KERNEL);
 	if (!t_alg)
 		return ERR_PTR(-ENOMEM);
 
@@ -3035,6 +3156,7 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
 	case CRYPTO_ALG_TYPE_ABLKCIPHER:
 		alg = &t_alg->algt.alg.crypto;
 		alg->cra_init = talitos_cra_init;
+		alg->cra_exit = talitos_cra_exit;
 		alg->cra_type = &crypto_ablkcipher_type;
 		alg->cra_ablkcipher.setkey = ablkcipher_setkey;
 		alg->cra_ablkcipher.encrypt = ablkcipher_encrypt;
@@ -3043,27 +3165,35 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
 		break;
 	case CRYPTO_ALG_TYPE_AEAD:
 		alg = &t_alg->algt.alg.aead.base;
+		alg->cra_exit = talitos_cra_exit;
 		t_alg->algt.alg.aead.init = talitos_cra_init_aead;
 		t_alg->algt.alg.aead.setkey = aead_setkey;
 		t_alg->algt.alg.aead.encrypt = aead_encrypt;
 		t_alg->algt.alg.aead.decrypt = aead_decrypt;
+		if (!(priv->features & TALITOS_FTR_SHA224_HWINIT) &&
+		    !strncmp(alg->cra_name, "authenc(hmac(sha224)", 20)) {
+			devm_kfree(dev, t_alg);
+			return ERR_PTR(-ENOTSUPP);
+		}
 		break;
 	case CRYPTO_ALG_TYPE_AHASH:
 		alg = &t_alg->algt.alg.hash.halg.base;
 		alg->cra_init = talitos_cra_init_ahash;
+		alg->cra_exit = talitos_cra_exit_ahash;
 		alg->cra_type = &crypto_ahash_type;
 		t_alg->algt.alg.hash.init = ahash_init;
 		t_alg->algt.alg.hash.update = ahash_update;
 		t_alg->algt.alg.hash.final = ahash_final;
 		t_alg->algt.alg.hash.finup = ahash_finup;
 		t_alg->algt.alg.hash.digest = ahash_digest;
-		t_alg->algt.alg.hash.setkey = ahash_setkey;
+		if (!strncmp(alg->cra_name, "hmac", 4))
+			t_alg->algt.alg.hash.setkey = ahash_setkey;
 		t_alg->algt.alg.hash.import = ahash_import;
 		t_alg->algt.alg.hash.export = ahash_export;
 
 		if (!(priv->features & TALITOS_FTR_HMAC_OK) &&
 		    !strncmp(alg->cra_name, "hmac", 4)) {
-			kfree(t_alg);
+			devm_kfree(dev, t_alg);
 			return ERR_PTR(-ENOTSUPP);
 		}
 		if (!(priv->features & TALITOS_FTR_SHA224_HWINIT) &&
@@ -3078,7 +3208,7 @@ static struct talitos_crypto_alg *talitos_alg_alloc(struct device *dev,
 		break;
 	default:
 		dev_err(dev, "unknown algorithm type %d\n", t_alg->algt.type);
-		kfree(t_alg);
+		devm_kfree(dev, t_alg);
 		return ERR_PTR(-EINVAL);
 	}
 
@@ -3155,11 +3285,11 @@ static int talitos_probe(struct platform_device *ofdev)
 	struct device *dev = &ofdev->dev;
 	struct device_node *np = ofdev->dev.of_node;
 	struct talitos_private *priv;
-	const unsigned int *prop;
 	int i, err;
 	int stride;
+	struct resource *res;
 
-	priv = kzalloc(sizeof(struct talitos_private), GFP_KERNEL);
+	priv = devm_kzalloc(dev, sizeof(struct talitos_private), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
@@ -3171,7 +3301,10 @@ static int talitos_probe(struct platform_device *ofdev)
 
 	spin_lock_init(&priv->reg_lock);
 
-	priv->reg = of_iomap(np, 0);
+	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENXIO;
+	priv->reg = devm_ioremap(dev, res->start, resource_size(res));
 	if (!priv->reg) {
 		dev_err(dev, "failed to of_iomap\n");
 		err = -ENOMEM;
@@ -3179,21 +3312,11 @@ static int talitos_probe(struct platform_device *ofdev)
 	}
 
 	/* get SEC version capabilities from device tree */
-	prop = of_get_property(np, "fsl,num-channels", NULL);
-	if (prop)
-		priv->num_channels = *prop;
-
-	prop = of_get_property(np, "fsl,channel-fifo-len", NULL);
-	if (prop)
-		priv->chfifo_len = *prop;
-
-	prop = of_get_property(np, "fsl,exec-units-mask", NULL);
-	if (prop)
-		priv->exec_units = *prop;
-
-	prop = of_get_property(np, "fsl,descriptor-types-mask", NULL);
-	if (prop)
-		priv->desc_types = *prop;
+	of_property_read_u32(np, "fsl,num-channels", &priv->num_channels);
+	of_property_read_u32(np, "fsl,channel-fifo-len", &priv->chfifo_len);
+	of_property_read_u32(np, "fsl,exec-units-mask", &priv->exec_units);
+	of_property_read_u32(np, "fsl,descriptor-types-mask",
+			     &priv->desc_types);
 
 	if (!is_power_of_2(priv->num_channels) || !priv->chfifo_len ||
 	    !priv->exec_units || !priv->desc_types) {
@@ -3243,22 +3366,29 @@ static int talitos_probe(struct platform_device *ofdev)
 		goto err_out;
 
 	if (of_device_is_compatible(np, "fsl,sec1.0")) {
-		tasklet_init(&priv->done_task[0], talitos1_done_4ch,
-			     (unsigned long)dev);
-	} else {
-		if (!priv->irq[1]) {
-			tasklet_init(&priv->done_task[0], talitos2_done_4ch,
+		if (priv->num_channels == 1)
+			tasklet_init(&priv->done_task[0], talitos1_done_ch0,
 				     (unsigned long)dev);
-		} else {
+		else
+			tasklet_init(&priv->done_task[0], talitos1_done_4ch,
+				     (unsigned long)dev);
+	} else {
+		if (priv->irq[1]) {
 			tasklet_init(&priv->done_task[0], talitos2_done_ch0_2,
 				     (unsigned long)dev);
 			tasklet_init(&priv->done_task[1], talitos2_done_ch1_3,
 				     (unsigned long)dev);
+		} else if (priv->num_channels == 1) {
+			tasklet_init(&priv->done_task[0], talitos2_done_ch0,
+				     (unsigned long)dev);
+		} else {
+			tasklet_init(&priv->done_task[0], talitos2_done_4ch,
+				     (unsigned long)dev);
 		}
 	}
 
-	priv->chan = kzalloc(sizeof(struct talitos_channel) *
-			     priv->num_channels, GFP_KERNEL);
+	priv->chan = devm_kzalloc(dev, sizeof(struct talitos_channel) *
+				       priv->num_channels, GFP_KERNEL);
 	if (!priv->chan) {
 		dev_err(dev, "failed to allocate channel management space\n");
 		err = -ENOMEM;
@@ -3275,8 +3405,9 @@ static int talitos_probe(struct platform_device *ofdev)
 		spin_lock_init(&priv->chan[i].head_lock);
 		spin_lock_init(&priv->chan[i].tail_lock);
 
-		priv->chan[i].fifo = kzalloc(sizeof(struct talitos_request) *
-					     priv->fifo_len, GFP_KERNEL);
+		priv->chan[i].fifo = devm_kzalloc(dev,
+						sizeof(struct talitos_request) *
+						priv->fifo_len, GFP_KERNEL);
 		if (!priv->chan[i].fifo) {
 			dev_err(dev, "failed to allocate request fifo %d\n", i);
 			err = -ENOMEM;
@@ -3342,7 +3473,7 @@ static int talitos_probe(struct platform_device *ofdev)
 			if (err) {
 				dev_err(dev, "%s alg registration failed\n",
 					alg->cra_driver_name);
-				kfree(t_alg);
+				devm_kfree(dev, t_alg);
 			} else
 				list_add_tail(&t_alg->entry, &priv->alg_list);
 		}
diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
index 8dd8f40e2771..a65a63e0d6c1 100644
--- a/drivers/crypto/talitos.h
+++ b/drivers/crypto/talitos.h
@@ -52,8 +52,6 @@ struct talitos_ptr {
 	__be32 ptr;     /* address */
 };
 
-static const struct talitos_ptr zero_entry;
-
 /* descriptor */
 struct talitos_desc {
 	__be32 hdr;                     /* header high bits */
@@ -210,9 +208,13 @@ static inline bool has_ftr_sec1(struct talitos_private *priv)
 #define TALITOS_ISR			0x1010  /* interrupt status register */
 #define   TALITOS1_ISR_4CHERR		ISR1_FORMAT(0xa) /* 4 ch errors mask */
 #define   TALITOS1_ISR_4CHDONE		ISR1_FORMAT(0x5) /* 4 ch done mask */
+#define   TALITOS1_ISR_CH_0_ERR		(2 << 28) /* ch 0 errors mask */
+#define   TALITOS1_ISR_CH_0_DONE	(1 << 28) /* ch 0 done mask */
 #define   TALITOS1_ISR_TEA_ERR		0x00000040
 #define   TALITOS2_ISR_4CHERR		ISR2_FORMAT(0xa) /* 4 ch errors mask */
 #define   TALITOS2_ISR_4CHDONE		ISR2_FORMAT(0x5) /* 4 ch done mask */
+#define   TALITOS2_ISR_CH_0_ERR		2 /* ch 0 errors mask */
+#define   TALITOS2_ISR_CH_0_DONE	1 /* ch 0 done mask */
 #define   TALITOS2_ISR_CH_0_2_ERR	ISR2_FORMAT(0x2) /* ch 0, 2 err mask */
 #define   TALITOS2_ISR_CH_0_2_DONE	ISR2_FORMAT(0x1) /* ch 0, 2 done mask */
 #define   TALITOS2_ISR_CH_1_3_ERR	ISR2_FORMAT(0x8) /* ch 1, 3 err mask */
@@ -234,6 +236,7 @@ static inline bool has_ftr_sec1(struct talitos_private *priv)
 #define   TALITOS_CCCR_LO_IWSE		0x80   /* chan. ICCR writeback enab. */
 #define   TALITOS_CCCR_LO_EAE		0x20   /* extended address enable */
 #define   TALITOS_CCCR_LO_CDWE		0x10   /* chan. done writeback enab. */
+#define   TALITOS_CCCR_LO_NE		0x8    /* fetch next descriptor enab. */
 #define   TALITOS_CCCR_LO_NT		0x4    /* notification type */
 #define   TALITOS_CCCR_LO_CDIE		0x2    /* channel done IRQ enable */
 #define   TALITOS1_CCCR_LO_RESET	0x1    /* channel reset on SEC1 */
diff --git a/drivers/crypto/ux500/cryp/cryp_core.c b/drivers/crypto/ux500/cryp/cryp_core.c
index 790f7cadc1ed..765f53e548ab 100644
--- a/drivers/crypto/ux500/cryp/cryp_core.c
+++ b/drivers/crypto/ux500/cryp/cryp_core.c
@@ -1751,7 +1751,6 @@ static void __exit ux500_cryp_mod_fini(void)
 {
 	pr_debug("[%s] is called!", __func__);
 	platform_driver_unregister(&cryp_driver);
-	return;
 }
 
 module_init(ux500_cryp_mod_init);
diff --git a/drivers/crypto/virtio/Makefile b/drivers/crypto/virtio/Makefile
index dd342c947ff9..cbfccccfa135 100644
--- a/drivers/crypto/virtio/Makefile
+++ b/drivers/crypto/virtio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_VIRTIO) += virtio_crypto.o
 virtio_crypto-objs := \
 	virtio_crypto_algs.o \
diff --git a/drivers/crypto/virtio/virtio_crypto_algs.c b/drivers/crypto/virtio/virtio_crypto_algs.c
index 5035b0dc1e40..abe8c15450df 100644
--- a/drivers/crypto/virtio/virtio_crypto_algs.c
+++ b/drivers/crypto/virtio/virtio_crypto_algs.c
@@ -319,7 +319,7 @@ static int virtio_crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
 		struct virtio_crypto *vcrypto =
 				      virtcrypto_get_dev_node(node);
 		if (!vcrypto) {
-			pr_err("virtio_crypto: Could not find a virtio device in the system");
+			pr_err("virtio_crypto: Could not find a virtio device in the system\n");
 			return -ENODEV;
 		}
 
diff --git a/drivers/crypto/vmx/Makefile b/drivers/crypto/vmx/Makefile
index 55f7c392582f..cab32cfec9c4 100644
--- a/drivers/crypto/vmx/Makefile
+++ b/drivers/crypto/vmx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o
 vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes_xts.o ghash.o
 
diff --git a/drivers/crypto/vmx/aes_ctr.c b/drivers/crypto/vmx/aes_ctr.c
index 17d84217dd76..fc60d00a2e84 100644
--- a/drivers/crypto/vmx/aes_ctr.c
+++ b/drivers/crypto/vmx/aes_ctr.c
@@ -27,21 +27,23 @@
 #include <asm/switch_to.h>
 #include <crypto/aes.h>
 #include <crypto/scatterwalk.h>
+#include <crypto/skcipher.h>
+
 #include "aesp8-ppc.h"
 
 struct p8_aes_ctr_ctx {
-	struct crypto_blkcipher *fallback;
+	struct crypto_skcipher *fallback;
 	struct aes_key enc_key;
 };
 
 static int p8_aes_ctr_init(struct crypto_tfm *tfm)
 {
 	const char *alg = crypto_tfm_alg_name(tfm);
-	struct crypto_blkcipher *fallback;
+	struct crypto_skcipher *fallback;
 	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
 
-	fallback =
-	    crypto_alloc_blkcipher(alg, 0, CRYPTO_ALG_NEED_FALLBACK);
+	fallback = crypto_alloc_skcipher(alg, 0,
+			CRYPTO_ALG_ASYNC | CRYPTO_ALG_NEED_FALLBACK);
 	if (IS_ERR(fallback)) {
 		printk(KERN_ERR
 		       "Failed to allocate transformation for '%s': %ld\n",
@@ -49,11 +51,11 @@ static int p8_aes_ctr_init(struct crypto_tfm *tfm)
 		return PTR_ERR(fallback);
 	}
 	printk(KERN_INFO "Using '%s' as fallback implementation.\n",
-	       crypto_tfm_alg_driver_name((struct crypto_tfm *) fallback));
+		crypto_skcipher_driver_name(fallback));
 
-	crypto_blkcipher_set_flags(
+	crypto_skcipher_set_flags(
 		fallback,
-		crypto_blkcipher_get_flags((struct crypto_blkcipher *)tfm));
+		crypto_skcipher_get_flags((struct crypto_skcipher *)tfm));
 	ctx->fallback = fallback;
 
 	return 0;
@@ -64,7 +66,7 @@ static void p8_aes_ctr_exit(struct crypto_tfm *tfm)
 	struct p8_aes_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
 
 	if (ctx->fallback) {
-		crypto_free_blkcipher(ctx->fallback);
+		crypto_free_skcipher(ctx->fallback);
 		ctx->fallback = NULL;
 	}
 }
@@ -83,7 +85,7 @@ static int p8_aes_ctr_setkey(struct crypto_tfm *tfm, const u8 *key,
 	pagefault_enable();
 	preempt_enable();
 
-	ret += crypto_blkcipher_setkey(ctx->fallback, key, keylen);
+	ret += crypto_skcipher_setkey(ctx->fallback, key, keylen);
 	return ret;
 }
 
@@ -117,15 +119,14 @@ static int p8_aes_ctr_crypt(struct blkcipher_desc *desc,
 	struct blkcipher_walk walk;
 	struct p8_aes_ctr_ctx *ctx =
 		crypto_tfm_ctx(crypto_blkcipher_tfm(desc->tfm));
-	struct blkcipher_desc fallback_desc = {
-		.tfm = ctx->fallback,
-		.info = desc->info,
-		.flags = desc->flags
-	};
 
 	if (in_interrupt()) {
-		ret = crypto_blkcipher_encrypt(&fallback_desc, dst, src,
-					       nbytes);
+		SKCIPHER_REQUEST_ON_STACK(req, ctx->fallback);
+		skcipher_request_set_tfm(req, ctx->fallback);
+		skcipher_request_set_callback(req, desc->flags, NULL, NULL);
+		skcipher_request_set_crypt(req, src, dst, nbytes, desc->info);
+		ret = crypto_skcipher_encrypt(req);
+		skcipher_request_zero(req);
 	} else {
 		blkcipher_walk_init(&walk, dst, src, nbytes);
 		ret = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
diff --git a/drivers/crypto/vmx/aesp8-ppc.h b/drivers/crypto/vmx/aesp8-ppc.h
index 01972e16a6c0..349646b73754 100644
--- a/drivers/crypto/vmx/aesp8-ppc.h
+++ b/drivers/crypto/vmx/aesp8-ppc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/types.h>
 #include <crypto/aes.h>
 
diff --git a/drivers/crypto/vmx/ppc-xlate.pl b/drivers/crypto/vmx/ppc-xlate.pl
index b18e67d0e065..36db2ef09e5b 100644
--- a/drivers/crypto/vmx/ppc-xlate.pl
+++ b/drivers/crypto/vmx/ppc-xlate.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 
 # PowerPC assembler distiller by <appro>.
 
diff --git a/drivers/dax/Makefile b/drivers/dax/Makefile
index dc7422530462..574286fac87c 100644
--- a/drivers/dax/Makefile
+++ b/drivers/dax/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DAX) += dax.o
 obj-$(CONFIG_DEV_DAX) += device_dax.o
 obj-$(CONFIG_DEV_DAX_PMEM) += dax_pmem.o
diff --git a/drivers/dax/super.c b/drivers/dax/super.c
index 3600ff786646..557b93703532 100644
--- a/drivers/dax/super.c
+++ b/drivers/dax/super.c
@@ -201,8 +201,10 @@ static umode_t dax_visible(struct kobject *kobj, struct attribute *a, int n)
 	if (!dax_dev)
 		return 0;
 
-	if (a == &dev_attr_write_cache.attr && !dax_dev->ops->flush)
+#ifndef CONFIG_ARCH_HAS_PMEM_API
+	if (a == &dev_attr_write_cache.attr)
 		return 0;
+#endif
 	return a->mode;
 }
 
@@ -267,18 +269,23 @@ size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
 }
 EXPORT_SYMBOL_GPL(dax_copy_from_iter);
 
-void dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
-		size_t size)
+#ifdef CONFIG_ARCH_HAS_PMEM_API
+void arch_wb_cache_pmem(void *addr, size_t size);
+void dax_flush(struct dax_device *dax_dev, void *addr, size_t size)
 {
-	if (!dax_alive(dax_dev))
+	if (unlikely(!dax_alive(dax_dev)))
 		return;
 
-	if (!test_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags))
+	if (unlikely(!test_bit(DAXDEV_WRITE_CACHE, &dax_dev->flags)))
 		return;
 
-	if (dax_dev->ops->flush)
-		dax_dev->ops->flush(dax_dev, pgoff, addr, size);
+	arch_wb_cache_pmem(addr, size);
 }
+#else
+void dax_flush(struct dax_device *dax_dev, void *addr, size_t size)
+{
+}
+#endif
 EXPORT_SYMBOL_GPL(dax_flush);
 
 void dax_write_cache(struct dax_device *dax_dev, bool wc)
diff --git a/drivers/devfreq/Makefile b/drivers/devfreq/Makefile
index fbff40a508a4..32b8d4d3f12c 100644
--- a/drivers/devfreq/Makefile
+++ b/drivers/devfreq/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PM_DEVFREQ)	+= devfreq.o
 obj-$(CONFIG_PM_DEVFREQ_EVENT)	+= devfreq-event.o
 obj-$(CONFIG_DEVFREQ_GOV_SIMPLE_ONDEMAND)	+= governor_simpleondemand.o
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index a1c4ee818614..78fb496ecb4e 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -28,6 +28,9 @@
 #include <linux/of.h>
 #include "governor.h"
 
+#define MAX(a,b)	((a > b) ? a : b)
+#define MIN(a,b)	((a < b) ? a : b)
+
 static struct class *devfreq_class;
 
 /*
@@ -69,6 +72,34 @@ static struct devfreq *find_device_devfreq(struct device *dev)
 	return ERR_PTR(-ENODEV);
 }
 
+static unsigned long find_available_min_freq(struct devfreq *devfreq)
+{
+	struct dev_pm_opp *opp;
+	unsigned long min_freq = 0;
+
+	opp = dev_pm_opp_find_freq_ceil(devfreq->dev.parent, &min_freq);
+	if (IS_ERR(opp))
+		min_freq = 0;
+	else
+		dev_pm_opp_put(opp);
+
+	return min_freq;
+}
+
+static unsigned long find_available_max_freq(struct devfreq *devfreq)
+{
+	struct dev_pm_opp *opp;
+	unsigned long max_freq = ULONG_MAX;
+
+	opp = dev_pm_opp_find_freq_floor(devfreq->dev.parent, &max_freq);
+	if (IS_ERR(opp))
+		max_freq = 0;
+	else
+		dev_pm_opp_put(opp);
+
+	return max_freq;
+}
+
 /**
  * devfreq_get_freq_level() - Lookup freq_table for the frequency
  * @devfreq:	the devfreq instance
@@ -85,11 +116,7 @@ static int devfreq_get_freq_level(struct devfreq *devfreq, unsigned long freq)
 	return -EINVAL;
 }
 
-/**
- * devfreq_set_freq_table() - Initialize freq_table for the frequency
- * @devfreq:	the devfreq instance
- */
-static void devfreq_set_freq_table(struct devfreq *devfreq)
+static int set_freq_table(struct devfreq *devfreq)
 {
 	struct devfreq_dev_profile *profile = devfreq->profile;
 	struct dev_pm_opp *opp;
@@ -99,7 +126,7 @@ static void devfreq_set_freq_table(struct devfreq *devfreq)
 	/* Initialize the freq_table from OPP table */
 	count = dev_pm_opp_get_opp_count(devfreq->dev.parent);
 	if (count <= 0)
-		return;
+		return -EINVAL;
 
 	profile->max_state = count;
 	profile->freq_table = devm_kcalloc(devfreq->dev.parent,
@@ -108,7 +135,7 @@ static void devfreq_set_freq_table(struct devfreq *devfreq)
 					GFP_KERNEL);
 	if (!profile->freq_table) {
 		profile->max_state = 0;
-		return;
+		return -ENOMEM;
 	}
 
 	for (i = 0, freq = 0; i < profile->max_state; i++, freq++) {
@@ -116,11 +143,13 @@ static void devfreq_set_freq_table(struct devfreq *devfreq)
 		if (IS_ERR(opp)) {
 			devm_kfree(devfreq->dev.parent, profile->freq_table);
 			profile->max_state = 0;
-			return;
+			return PTR_ERR(opp);
 		}
 		dev_pm_opp_put(opp);
 		profile->freq_table[i] = freq;
 	}
+
+	return 0;
 }
 
 /**
@@ -227,7 +256,7 @@ static int devfreq_notify_transition(struct devfreq *devfreq,
 int update_devfreq(struct devfreq *devfreq)
 {
 	struct devfreq_freqs freqs;
-	unsigned long freq, cur_freq;
+	unsigned long freq, cur_freq, min_freq, max_freq;
 	int err = 0;
 	u32 flags = 0;
 
@@ -245,19 +274,21 @@ int update_devfreq(struct devfreq *devfreq)
 		return err;
 
 	/*
-	 * Adjust the frequency with user freq and QoS.
+	 * Adjust the frequency with user freq, QoS and available freq.
 	 *
 	 * List from the highest priority
 	 * max_freq
 	 * min_freq
 	 */
+	max_freq = MIN(devfreq->scaling_max_freq, devfreq->max_freq);
+	min_freq = MAX(devfreq->scaling_min_freq, devfreq->min_freq);
 
-	if (devfreq->min_freq && freq < devfreq->min_freq) {
-		freq = devfreq->min_freq;
+	if (min_freq && freq < min_freq) {
+		freq = min_freq;
 		flags &= ~DEVFREQ_FLAG_LEAST_UPPER_BOUND; /* Use GLB */
 	}
-	if (devfreq->max_freq && freq > devfreq->max_freq) {
-		freq = devfreq->max_freq;
+	if (max_freq && freq > max_freq) {
+		freq = max_freq;
 		flags |= DEVFREQ_FLAG_LEAST_UPPER_BOUND; /* Use LUB */
 	}
 
@@ -280,10 +311,9 @@ int update_devfreq(struct devfreq *devfreq)
 	freqs.new = freq;
 	devfreq_notify_transition(devfreq, &freqs, DEVFREQ_POSTCHANGE);
 
-	if (devfreq->profile->freq_table)
-		if (devfreq_update_status(devfreq, freq))
-			dev_err(&devfreq->dev,
-				"Couldn't update frequency transition information.\n");
+	if (devfreq_update_status(devfreq, freq))
+		dev_err(&devfreq->dev,
+			"Couldn't update frequency transition information.\n");
 
 	devfreq->previous_freq = freq;
 	return err;
@@ -466,6 +496,19 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type,
 	int ret;
 
 	mutex_lock(&devfreq->lock);
+
+	devfreq->scaling_min_freq = find_available_min_freq(devfreq);
+	if (!devfreq->scaling_min_freq) {
+		mutex_unlock(&devfreq->lock);
+		return -EINVAL;
+	}
+
+	devfreq->scaling_max_freq = find_available_max_freq(devfreq);
+	if (!devfreq->scaling_max_freq) {
+		mutex_unlock(&devfreq->lock);
+		return -EINVAL;
+	}
+
 	ret = update_devfreq(devfreq);
 	mutex_unlock(&devfreq->lock);
 
@@ -555,10 +598,28 @@ struct devfreq *devfreq_add_device(struct device *dev,
 
 	if (!devfreq->profile->max_state && !devfreq->profile->freq_table) {
 		mutex_unlock(&devfreq->lock);
-		devfreq_set_freq_table(devfreq);
+		err = set_freq_table(devfreq);
+		if (err < 0)
+			goto err_out;
 		mutex_lock(&devfreq->lock);
 	}
 
+	devfreq->min_freq = find_available_min_freq(devfreq);
+	if (!devfreq->min_freq) {
+		mutex_unlock(&devfreq->lock);
+		err = -EINVAL;
+		goto err_dev;
+	}
+	devfreq->scaling_min_freq = devfreq->min_freq;
+
+	devfreq->max_freq = find_available_max_freq(devfreq);
+	if (!devfreq->max_freq) {
+		mutex_unlock(&devfreq->lock);
+		err = -EINVAL;
+		goto err_dev;
+	}
+	devfreq->scaling_max_freq = devfreq->max_freq;
+
 	dev_set_name(&devfreq->dev, "devfreq%d",
 				atomic_inc_return(&devfreq_no));
 	err = device_register(&devfreq->dev);
@@ -1082,6 +1143,14 @@ unlock:
 	return ret;
 }
 
+static ssize_t min_freq_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct devfreq *df = to_devfreq(dev);
+
+	return sprintf(buf, "%lu\n", MAX(df->scaling_min_freq, df->min_freq));
+}
+
 static ssize_t max_freq_store(struct device *dev, struct device_attribute *attr,
 			      const char *buf, size_t count)
 {
@@ -1108,17 +1177,15 @@ unlock:
 	mutex_unlock(&df->lock);
 	return ret;
 }
+static DEVICE_ATTR_RW(min_freq);
 
-#define show_one(name)						\
-static ssize_t name##_show					\
-(struct device *dev, struct device_attribute *attr, char *buf)	\
-{								\
-	return sprintf(buf, "%lu\n", to_devfreq(dev)->name);	\
-}
-show_one(min_freq);
-show_one(max_freq);
+static ssize_t max_freq_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct devfreq *df = to_devfreq(dev);
 
-static DEVICE_ATTR_RW(min_freq);
+	return sprintf(buf, "%lu\n", MIN(df->scaling_max_freq, df->max_freq));
+}
 static DEVICE_ATTR_RW(max_freq);
 
 static ssize_t available_frequencies_show(struct device *d,
@@ -1126,22 +1193,16 @@ static ssize_t available_frequencies_show(struct device *d,
 					  char *buf)
 {
 	struct devfreq *df = to_devfreq(d);
-	struct device *dev = df->dev.parent;
-	struct dev_pm_opp *opp;
 	ssize_t count = 0;
-	unsigned long freq = 0;
+	int i;
 
-	do {
-		opp = dev_pm_opp_find_freq_ceil(dev, &freq);
-		if (IS_ERR(opp))
-			break;
+	mutex_lock(&df->lock);
 
-		dev_pm_opp_put(opp);
+	for (i = 0; i < df->profile->max_state; i++)
 		count += scnprintf(&buf[count], (PAGE_SIZE - count - 2),
-				   "%lu ", freq);
-		freq++;
-	} while (1);
+				"%lu ", df->profile->freq_table[i]);
 
+	mutex_unlock(&df->lock);
 	/* Truncate the trailing space */
 	if (count)
 		count--;
diff --git a/drivers/devfreq/exynos-bus.c b/drivers/devfreq/exynos-bus.c
index 49f68929e024..c25658b26598 100644
--- a/drivers/devfreq/exynos-bus.c
+++ b/drivers/devfreq/exynos-bus.c
@@ -436,7 +436,8 @@ static int exynos_bus_probe(struct platform_device *pdev)
 	ondemand_data->downdifferential = 5;
 
 	/* Add devfreq device to monitor and handle the exynos bus */
-	bus->devfreq = devm_devfreq_add_device(dev, profile, "simple_ondemand",
+	bus->devfreq = devm_devfreq_add_device(dev, profile,
+						DEVFREQ_GOV_SIMPLE_ONDEMAND,
 						ondemand_data);
 	if (IS_ERR(bus->devfreq)) {
 		dev_err(dev, "failed to add devfreq device\n");
@@ -488,7 +489,7 @@ passive:
 	passive_data->parent = parent_devfreq;
 
 	/* Add devfreq device for exynos bus with passive governor */
-	bus->devfreq = devm_devfreq_add_device(dev, profile, "passive",
+	bus->devfreq = devm_devfreq_add_device(dev, profile, DEVFREQ_GOV_PASSIVE,
 						passive_data);
 	if (IS_ERR(bus->devfreq)) {
 		dev_err(dev,
diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c
index 673ad8cc9a1d..3bc29acbd54e 100644
--- a/drivers/devfreq/governor_passive.c
+++ b/drivers/devfreq/governor_passive.c
@@ -183,7 +183,7 @@ static int devfreq_passive_event_handler(struct devfreq *devfreq,
 }
 
 static struct devfreq_governor devfreq_passive = {
-	.name = "passive",
+	.name = DEVFREQ_GOV_PASSIVE,
 	.immutable = 1,
 	.get_target_freq = devfreq_passive_get_target_freq,
 	.event_handler = devfreq_passive_event_handler,
diff --git a/drivers/devfreq/governor_performance.c b/drivers/devfreq/governor_performance.c
index c72f942f30a8..4d23ecfbd948 100644
--- a/drivers/devfreq/governor_performance.c
+++ b/drivers/devfreq/governor_performance.c
@@ -42,7 +42,7 @@ static int devfreq_performance_handler(struct devfreq *devfreq,
 }
 
 static struct devfreq_governor devfreq_performance = {
-	.name = "performance",
+	.name = DEVFREQ_GOV_PERFORMANCE,
 	.get_target_freq = devfreq_performance_func,
 	.event_handler = devfreq_performance_handler,
 };
diff --git a/drivers/devfreq/governor_powersave.c b/drivers/devfreq/governor_powersave.c
index 0c6bed567e6d..0c42f23249ef 100644
--- a/drivers/devfreq/governor_powersave.c
+++ b/drivers/devfreq/governor_powersave.c
@@ -39,7 +39,7 @@ static int devfreq_powersave_handler(struct devfreq *devfreq,
 }
 
 static struct devfreq_governor devfreq_powersave = {
-	.name = "powersave",
+	.name = DEVFREQ_GOV_POWERSAVE,
 	.get_target_freq = devfreq_powersave_func,
 	.event_handler = devfreq_powersave_handler,
 };
diff --git a/drivers/devfreq/governor_simpleondemand.c b/drivers/devfreq/governor_simpleondemand.c
index ae72ba5e78df..28e0f2de7100 100644
--- a/drivers/devfreq/governor_simpleondemand.c
+++ b/drivers/devfreq/governor_simpleondemand.c
@@ -125,7 +125,7 @@ static int devfreq_simple_ondemand_handler(struct devfreq *devfreq,
 }
 
 static struct devfreq_governor devfreq_simple_ondemand = {
-	.name = "simple_ondemand",
+	.name = DEVFREQ_GOV_SIMPLE_ONDEMAND,
 	.get_target_freq = devfreq_simple_ondemand_func,
 	.event_handler = devfreq_simple_ondemand_handler,
 };
diff --git a/drivers/devfreq/governor_userspace.c b/drivers/devfreq/governor_userspace.c
index 77028c27593c..080607c3f34d 100644
--- a/drivers/devfreq/governor_userspace.c
+++ b/drivers/devfreq/governor_userspace.c
@@ -87,7 +87,7 @@ static struct attribute *dev_entries[] = {
 	NULL,
 };
 static const struct attribute_group dev_attr_group = {
-	.name	= "userspace",
+	.name	= DEVFREQ_GOV_USERSPACE,
 	.attrs	= dev_entries,
 };
 
diff --git a/drivers/devfreq/rk3399_dmc.c b/drivers/devfreq/rk3399_dmc.c
index 1b89ebbad02c..5dfbfa3cc878 100644
--- a/drivers/devfreq/rk3399_dmc.c
+++ b/drivers/devfreq/rk3399_dmc.c
@@ -431,7 +431,7 @@ static int rk3399_dmcfreq_probe(struct platform_device *pdev)
 
 	data->devfreq = devm_devfreq_add_device(dev,
 					   &rk3399_devfreq_dmc_profile,
-					   "simple_ondemand",
+					   DEVFREQ_GOV_SIMPLE_ONDEMAND,
 					   &data->ondemand_data);
 	if (IS_ERR(data->devfreq))
 		return PTR_ERR(data->devfreq);
diff --git a/drivers/dio/dio.c b/drivers/dio/dio.c
index 0d0677f23916..92e78d16b476 100644
--- a/drivers/dio/dio.c
+++ b/drivers/dio/dio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Code to support devices on the DIO and DIO-II bus
  * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
  * Copyright (C) 2004 Jochen Friedrich <jochen@scram.de>
diff --git a/drivers/dma-buf/sync_file.c b/drivers/dma-buf/sync_file.c
index 66fb40d0ebdb..03830634e141 100644
--- a/drivers/dma-buf/sync_file.c
+++ b/drivers/dma-buf/sync_file.c
@@ -383,7 +383,7 @@ err_put_fd:
 	return err;
 }
 
-static void sync_fill_fence_info(struct dma_fence *fence,
+static int sync_fill_fence_info(struct dma_fence *fence,
 				 struct sync_fence_info *info)
 {
 	strlcpy(info->obj_name, fence->ops->get_timeline_name(fence),
@@ -399,6 +399,8 @@ static void sync_fill_fence_info(struct dma_fence *fence,
 		test_bit(DMA_FENCE_FLAG_TIMESTAMP_BIT, &fence->flags) ?
 		ktime_to_ns(fence->timestamp) :
 		ktime_set(0, 0);
+
+	return info->status;
 }
 
 static long sync_file_ioctl_fence_info(struct sync_file *sync_file,
@@ -424,8 +426,12 @@ static long sync_file_ioctl_fence_info(struct sync_file *sync_file,
 	 * sync_fence_info and return the actual number of fences on
 	 * info->num_fences.
 	 */
-	if (!info.num_fences)
+	if (!info.num_fences) {
+		info.status = dma_fence_is_signaled(sync_file->fence);
 		goto no_fences;
+	} else {
+		info.status = 1;
+	}
 
 	if (info.num_fences < num_fences)
 		return -EINVAL;
@@ -435,8 +441,10 @@ static long sync_file_ioctl_fence_info(struct sync_file *sync_file,
 	if (!fence_info)
 		return -ENOMEM;
 
-	for (i = 0; i < num_fences; i++)
-		sync_fill_fence_info(fences[i], &fence_info[i]);
+	for (i = 0; i < num_fences; i++) {
+		int status = sync_fill_fence_info(fences[i], &fence_info[i]);
+		info.status = info.status <= 0 ? info.status : status;
+	}
 
 	if (copy_to_user(u64_to_user_ptr(info.sync_fence_info), fence_info,
 			 size)) {
@@ -446,7 +454,6 @@ static long sync_file_ioctl_fence_info(struct sync_file *sync_file,
 
 no_fences:
 	sync_file_get_name(sync_file, info.name, sizeof(info.name));
-	info.status = dma_fence_is_signaled(sync_file->fence);
 	info.num_fences = num_fences;
 
 	if (copy_to_user((void __user *)arg, &info, sizeof(info)))
diff --git a/drivers/dma-buf/sync_trace.h b/drivers/dma-buf/sync_trace.h
index d13d59ff1b85..06e468a218ff 100644
--- a/drivers/dma-buf/sync_trace.h
+++ b/drivers/dma-buf/sync_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_INCLUDE_PATH ../../drivers/dma-buf
 #define TRACE_SYSTEM sync_trace
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index f08f8de1b567..9d0156b50294 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #dmaengine debug flags
 subdir-ccflags-$(CONFIG_DMADEVICES_DEBUG)  := -DDEBUG
 subdir-ccflags-$(CONFIG_DMADEVICES_VDEBUG) += -DVERBOSE_DEBUG
diff --git a/drivers/dma/altera-msgdma.c b/drivers/dma/altera-msgdma.c
index 32905d5606ac..55f9c62ee54b 100644
--- a/drivers/dma/altera-msgdma.c
+++ b/drivers/dma/altera-msgdma.c
@@ -212,11 +212,12 @@ struct msgdma_device {
 static struct msgdma_sw_desc *msgdma_get_descriptor(struct msgdma_device *mdev)
 {
 	struct msgdma_sw_desc *desc;
+	unsigned long flags;
 
-	spin_lock_bh(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, flags);
 	desc = list_first_entry(&mdev->free_list, struct msgdma_sw_desc, node);
 	list_del(&desc->node);
-	spin_unlock_bh(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, flags);
 
 	INIT_LIST_HEAD(&desc->tx_list);
 
@@ -306,13 +307,14 @@ static dma_cookie_t msgdma_tx_submit(struct dma_async_tx_descriptor *tx)
 	struct msgdma_device *mdev = to_mdev(tx->chan);
 	struct msgdma_sw_desc *new;
 	dma_cookie_t cookie;
+	unsigned long flags;
 
 	new = tx_to_desc(tx);
-	spin_lock_bh(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, flags);
 	cookie = dma_cookie_assign(tx);
 
 	list_add_tail(&new->node, &mdev->pending_list);
-	spin_unlock_bh(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, flags);
 
 	return cookie;
 }
@@ -336,17 +338,18 @@ msgdma_prep_memcpy(struct dma_chan *dchan, dma_addr_t dma_dst,
 	struct msgdma_extended_desc *desc;
 	size_t copy;
 	u32 desc_cnt;
+	unsigned long irqflags;
 
 	desc_cnt = DIV_ROUND_UP(len, MSGDMA_MAX_TRANS_LEN);
 
-	spin_lock_bh(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, irqflags);
 	if (desc_cnt > mdev->desc_free_cnt) {
-		spin_unlock_bh(&mdev->lock);
+		spin_unlock_irqrestore(&mdev->lock, irqflags);
 		dev_dbg(mdev->dev, "mdev %p descs are not available\n", mdev);
 		return NULL;
 	}
 	mdev->desc_free_cnt -= desc_cnt;
-	spin_unlock_bh(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, irqflags);
 
 	do {
 		/* Allocate and populate the descriptor */
@@ -397,18 +400,19 @@ msgdma_prep_slave_sg(struct dma_chan *dchan, struct scatterlist *sgl,
 	u32 desc_cnt = 0, i;
 	struct scatterlist *sg;
 	u32 stride;
+	unsigned long irqflags;
 
 	for_each_sg(sgl, sg, sg_len, i)
 		desc_cnt += DIV_ROUND_UP(sg_dma_len(sg), MSGDMA_MAX_TRANS_LEN);
 
-	spin_lock_bh(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, irqflags);
 	if (desc_cnt > mdev->desc_free_cnt) {
-		spin_unlock_bh(&mdev->lock);
+		spin_unlock_irqrestore(&mdev->lock, irqflags);
 		dev_dbg(mdev->dev, "mdev %p descs are not available\n", mdev);
 		return NULL;
 	}
 	mdev->desc_free_cnt -= desc_cnt;
-	spin_unlock_bh(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, irqflags);
 
 	avail = sg_dma_len(sgl);
 
@@ -566,10 +570,11 @@ static void msgdma_start_transfer(struct msgdma_device *mdev)
 static void msgdma_issue_pending(struct dma_chan *chan)
 {
 	struct msgdma_device *mdev = to_mdev(chan);
+	unsigned long flags;
 
-	spin_lock_bh(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, flags);
 	msgdma_start_transfer(mdev);
-	spin_unlock_bh(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, flags);
 }
 
 /**
@@ -634,10 +639,11 @@ static void msgdma_free_descriptors(struct msgdma_device *mdev)
 static void msgdma_free_chan_resources(struct dma_chan *dchan)
 {
 	struct msgdma_device *mdev = to_mdev(dchan);
+	unsigned long flags;
 
-	spin_lock_bh(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, flags);
 	msgdma_free_descriptors(mdev);
-	spin_unlock_bh(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, flags);
 	kfree(mdev->sw_desq);
 }
 
@@ -682,8 +688,9 @@ static void msgdma_tasklet(unsigned long data)
 	u32 count;
 	u32 __maybe_unused size;
 	u32 __maybe_unused status;
+	unsigned long flags;
 
-	spin_lock(&mdev->lock);
+	spin_lock_irqsave(&mdev->lock, flags);
 
 	/* Read number of responses that are available */
 	count = ioread32(mdev->csr + MSGDMA_CSR_RESP_FILL_LEVEL);
@@ -698,13 +705,13 @@ static void msgdma_tasklet(unsigned long data)
 		 * bits. So we need to just drop these values.
 		 */
 		size = ioread32(mdev->resp + MSGDMA_RESP_BYTES_TRANSFERRED);
-		status = ioread32(mdev->resp - MSGDMA_RESP_STATUS);
+		status = ioread32(mdev->resp + MSGDMA_RESP_STATUS);
 
 		msgdma_complete_descriptor(mdev);
 		msgdma_chan_desc_cleanup(mdev);
 	}
 
-	spin_unlock(&mdev->lock);
+	spin_unlock_irqrestore(&mdev->lock, flags);
 }
 
 /**
diff --git a/drivers/dma/bestcomm/Makefile b/drivers/dma/bestcomm/Makefile
index aed2df2a6580..8d1b33a2f0a1 100644
--- a/drivers/dma/bestcomm/Makefile
+++ b/drivers/dma/bestcomm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for BestComm & co
 #
diff --git a/drivers/dma/dmaengine.h b/drivers/dma/dmaengine.h
index 882ff9448c3b..501c0b063f85 100644
--- a/drivers/dma/dmaengine.h
+++ b/drivers/dma/dmaengine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The contents of this file are private to DMA engine drivers, and is not
  * part of the API to be used by DMA engine users.
diff --git a/drivers/dma/dw/Makefile b/drivers/dma/dw/Makefile
index 3eebd1ce2c6b..2b949c2e4504 100644
--- a/drivers/dma/dw/Makefile
+++ b/drivers/dma/dw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DW_DMAC_CORE)	+= dw_dmac_core.o
 dw_dmac_core-objs	:= core.o
 
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 3879f80a4815..a7ea20e7b8e9 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -1143,11 +1143,24 @@ static struct dma_async_tx_descriptor *edma_prep_dma_memcpy(
 	struct edma_desc *edesc;
 	struct device *dev = chan->device->dev;
 	struct edma_chan *echan = to_edma_chan(chan);
-	unsigned int width, pset_len;
+	unsigned int width, pset_len, array_size;
 
 	if (unlikely(!echan || !len))
 		return NULL;
 
+	/* Align the array size (acnt block) with the transfer properties */
+	switch (__ffs((src | dest | len))) {
+	case 0:
+		array_size = SZ_32K - 1;
+		break;
+	case 1:
+		array_size = SZ_32K - 2;
+		break;
+	default:
+		array_size = SZ_32K - 4;
+		break;
+	}
+
 	if (len < SZ_64K) {
 		/*
 		 * Transfer size less than 64K can be handled with one paRAM
@@ -1169,7 +1182,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_memcpy(
 		 * When the full_length is multibple of 32767 one slot can be
 		 * used to complete the transfer.
 		 */
-		width = SZ_32K - 1;
+		width = array_size;
 		pset_len = rounddown(len, width);
 		/* One slot is enough for lengths multiple of (SZ_32K -1) */
 		if (unlikely(pset_len == len))
@@ -1217,7 +1230,7 @@ static struct dma_async_tx_descriptor *edma_prep_dma_memcpy(
 		}
 		dest += pset_len;
 		src += pset_len;
-		pset_len = width = len % (SZ_32K - 1);
+		pset_len = width = len % array_size;
 
 		ret = edma_config_pset(chan, &edesc->pset[1], src, dest, 1,
 				       width, pset_len, DMA_MEM_TO_MEM);
diff --git a/drivers/dma/qcom/Makefile b/drivers/dma/qcom/Makefile
index 4bfc38b45220..1ae92da88b0c 100644
--- a/drivers/dma/qcom/Makefile
+++ b/drivers/dma/qcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_QCOM_BAM_DMA) += bam_dma.o
 obj-$(CONFIG_QCOM_HIDMA_MGMT) += hdma_mgmt.o
 hdma_mgmt-objs	 := hidma_mgmt.o hidma_mgmt_sys.o
diff --git a/drivers/dma/sh/Makefile b/drivers/dma/sh/Makefile
index f1e2fd64f279..7d7c9491ade1 100644
--- a/drivers/dma/sh/Makefile
+++ b/drivers/dma/sh/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # DMA Engine Helpers
 #
diff --git a/drivers/dma/ti-dma-crossbar.c b/drivers/dma/ti-dma-crossbar.c
index 2f65a8fde21d..f1d04b70ee67 100644
--- a/drivers/dma/ti-dma-crossbar.c
+++ b/drivers/dma/ti-dma-crossbar.c
@@ -262,13 +262,14 @@ static void *ti_dra7_xbar_route_allocate(struct of_phandle_args *dma_spec,
 	mutex_lock(&xbar->mutex);
 	map->xbar_out = find_first_zero_bit(xbar->dma_inuse,
 					    xbar->dma_requests);
-	mutex_unlock(&xbar->mutex);
 	if (map->xbar_out == xbar->dma_requests) {
+		mutex_unlock(&xbar->mutex);
 		dev_err(&pdev->dev, "Run out of free DMA requests\n");
 		kfree(map);
 		return ERR_PTR(-ENOMEM);
 	}
 	set_bit(map->xbar_out, xbar->dma_inuse);
+	mutex_unlock(&xbar->mutex);
 
 	map->xbar_in = (u16)dma_spec->args[0];
 
diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c
index 346c4987b284..11d6419788c2 100644
--- a/drivers/edac/altera_edac.c
+++ b/drivers/edac/altera_edac.c
@@ -175,11 +175,11 @@ static ssize_t altr_sdr_mc_err_inject_write(struct file *file,
 	/*
 	 * To trigger the error, we need to read the data back
 	 * (the data was written with errors above).
-	 * The ACCESS_ONCE macros and printk are used to prevent the
+	 * The READ_ONCE macros and printk are used to prevent the
 	 * the compiler optimizing these reads out.
 	 */
-	reg = ACCESS_ONCE(ptemp[0]);
-	read_reg = ACCESS_ONCE(ptemp[1]);
+	reg = READ_ONCE(ptemp[0]);
+	read_reg = READ_ONCE(ptemp[1]);
 	/* Force Read */
 	rmb();
 
@@ -618,7 +618,7 @@ static ssize_t altr_edac_device_trig(struct file *file,
 	for (i = 0; i < (priv->trig_alloc_sz / sizeof(*ptemp)); i++) {
 		/* Read data so we're in the correct state */
 		rmb();
-		if (ACCESS_ONCE(ptemp[i]))
+		if (READ_ONCE(ptemp[i]))
 			result = -1;
 		/* Toggle Error bit (it is latched), leave ECC enabled */
 		writel(error_mask, (drvdata->base + priv->set_err_ofst));
@@ -635,7 +635,7 @@ static ssize_t altr_edac_device_trig(struct file *file,
 
 	/* Read out written data. ECC error caused here */
 	for (i = 0; i < ALTR_TRIGGER_READ_WRD_CNT; i++)
-		if (ACCESS_ONCE(ptemp[i]) != i)
+		if (READ_ONCE(ptemp[i]) != i)
 			edac_printk(KERN_ERR, EDAC_DEVICE,
 				    "Read doesn't match written data\n");
 
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index ac2f30295efe..8b16ec595fa7 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -3434,9 +3434,14 @@ MODULE_DEVICE_TABLE(x86cpu, amd64_cpuids);
 
 static int __init amd64_edac_init(void)
 {
+	const char *owner;
 	int err = -ENODEV;
 	int i;
 
+	owner = edac_get_owner();
+	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
+		return -EBUSY;
+
 	if (!x86_match_cpu(amd64_cpuids))
 		return -ENODEV;
 
diff --git a/drivers/edac/amd64_edac_dbg.c b/drivers/edac/amd64_edac_dbg.c
index 4709c6079848..393be3351493 100644
--- a/drivers/edac/amd64_edac_dbg.c
+++ b/drivers/edac/amd64_edac_dbg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "amd64_edac.h"
 
 #define EDAC_DCT_ATTR_SHOW(reg)						\
diff --git a/drivers/edac/amd64_edac_inj.c b/drivers/edac/amd64_edac_inj.c
index e14977ff95db..d96d6116f0fb 100644
--- a/drivers/edac/amd64_edac_inj.c
+++ b/drivers/edac/amd64_edac_inj.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "amd64_edac.h"
 
 static ssize_t amd64_inject_section_show(struct device *dev,
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 480072139b7a..48193f5f3b56 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -53,7 +53,7 @@ static LIST_HEAD(mc_devices);
  * Used to lock EDAC MC to just one module, avoiding two drivers e. g.
  *	apei/ghes and i7core_edac to be used at the same time.
  */
-static void const *edac_mc_owner;
+static const char *edac_mc_owner;
 
 static struct bus_type mc_bus[EDAC_MAX_MCS];
 
@@ -701,6 +701,11 @@ unlock:
 }
 EXPORT_SYMBOL(edac_mc_find);
 
+const char *edac_get_owner(void)
+{
+	return edac_mc_owner;
+}
+EXPORT_SYMBOL_GPL(edac_get_owner);
 
 /* FIXME - should a warning be printed if no error detection? correction? */
 int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_mc.h
index 5357800e418d..4165e15995ad 100644
--- a/drivers/edac/edac_mc.h
+++ b/drivers/edac/edac_mc.h
@@ -128,6 +128,14 @@ struct mem_ctl_info *edac_mc_alloc(unsigned mc_num,
 				   unsigned sz_pvt);
 
 /**
+ * edac_get_owner - Return the owner's mod_name of EDAC MC
+ *
+ * Returns:
+ *	Pointer to mod_name string when EDAC MC is owned. NULL otherwise.
+ */
+extern const char *edac_get_owner(void);
+
+/*
  * edac_mc_add_mc_with_groups() - Insert the @mci structure into the mci
  *	global list and create sysfs entries associated with @mci structure.
  *
diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h
index 014871e169cc..dec88dcea036 100644
--- a/drivers/edac/edac_module.h
+++ b/drivers/edac/edac_module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * edac_module.h
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index 6f80eb65c26c..68b6ee18bea6 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -28,10 +28,19 @@ struct ghes_edac_pvt {
 	char msg[80];
 };
 
-static LIST_HEAD(ghes_reglist);
-static DEFINE_MUTEX(ghes_edac_lock);
-static int ghes_edac_mc_num;
+static atomic_t ghes_init = ATOMIC_INIT(0);
+static struct ghes_edac_pvt *ghes_pvt;
 
+/*
+ * Sync with other, potentially concurrent callers of
+ * ghes_edac_report_mem_error(). We don't know what the
+ * "inventive" firmware would do.
+ */
+static DEFINE_SPINLOCK(ghes_lock);
+
+/* "ghes_edac.force_load=1" skips the platform check */
+static bool __read_mostly force_load;
+module_param(force_load, bool, 0);
 
 /* Memory Device - Type 17 of SMBIOS spec */
 struct memdev_dmi_entry {
@@ -169,18 +178,26 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 	enum hw_event_mc_err_type type;
 	struct edac_raw_error_desc *e;
 	struct mem_ctl_info *mci;
-	struct ghes_edac_pvt *pvt = NULL;
+	struct ghes_edac_pvt *pvt = ghes_pvt;
+	unsigned long flags;
 	char *p;
 	u8 grain_bits;
 
-	list_for_each_entry(pvt, &ghes_reglist, list) {
-		if (ghes == pvt->ghes)
-			break;
-	}
 	if (!pvt) {
 		pr_err("Internal error: Can't find EDAC structure\n");
 		return;
 	}
+
+	/*
+	 * We can do the locking below because GHES defers error processing
+	 * from NMI to IRQ context. Whenever that changes, we'd at least
+	 * know.
+	 */
+	if (WARN_ON_ONCE(in_nmi()))
+		return;
+
+	spin_lock_irqsave(&ghes_lock, flags);
+
 	mci = pvt->mci;
 	e = &mci->error_desc;
 
@@ -398,10 +415,17 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 		       (e->page_frame_number << PAGE_SHIFT) | e->offset_in_page,
 		       grain_bits, e->syndrome, pvt->detail_location);
 
-	/* Report the error via EDAC API */
 	edac_raw_mc_handle_error(type, mci, e);
+	spin_unlock_irqrestore(&ghes_lock, flags);
 }
-EXPORT_SYMBOL_GPL(ghes_edac_report_mem_error);
+
+/*
+ * Known systems that are safe to enable this module.
+ */
+static struct acpi_platform_list plat_list[] = {
+	{"HPE   ", "Server  ", 0, ACPI_SIG_FADT, all_versions},
+	{ } /* End */
+};
 
 int ghes_edac_register(struct ghes *ghes, struct device *dev)
 {
@@ -409,8 +433,19 @@ int ghes_edac_register(struct ghes *ghes, struct device *dev)
 	int rc, num_dimm = 0;
 	struct mem_ctl_info *mci;
 	struct edac_mc_layer layers[1];
-	struct ghes_edac_pvt *pvt;
 	struct ghes_edac_dimm_fill dimm_fill;
+	int idx;
+
+	/* Check if safe to enable on this system */
+	idx = acpi_match_platform_list(plat_list);
+	if (!force_load && idx < 0)
+		return 0;
+
+	/*
+	 * We have only one logical memory controller to which all DIMMs belong.
+	 */
+	if (atomic_inc_return(&ghes_init) > 1)
+		return 0;
 
 	/* Get the number of DIMMs */
 	dmi_walk(ghes_edac_count_dimms, &num_dimm);
@@ -425,26 +460,17 @@ int ghes_edac_register(struct ghes *ghes, struct device *dev)
 	layers[0].size = num_dimm;
 	layers[0].is_virt_csrow = true;
 
-	/*
-	 * We need to serialize edac_mc_alloc() and edac_mc_add_mc(),
-	 * to avoid duplicated memory controller numbers
-	 */
-	mutex_lock(&ghes_edac_lock);
-	mci = edac_mc_alloc(ghes_edac_mc_num, ARRAY_SIZE(layers), layers,
-			    sizeof(*pvt));
+	mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, sizeof(struct ghes_edac_pvt));
 	if (!mci) {
 		pr_info("Can't allocate memory for EDAC data\n");
-		mutex_unlock(&ghes_edac_lock);
 		return -ENOMEM;
 	}
 
-	pvt = mci->pvt_info;
-	memset(pvt, 0, sizeof(*pvt));
-	list_add_tail(&pvt->list, &ghes_reglist);
-	pvt->ghes = ghes;
-	pvt->mci  = mci;
-	mci->pdev = dev;
+	ghes_pvt	= mci->pvt_info;
+	ghes_pvt->ghes	= ghes;
+	ghes_pvt->mci	= mci;
 
+	mci->pdev = dev;
 	mci->mtype_cap = MEM_FLAG_EMPTY;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE;
 	mci->edac_cap = EDAC_FLAG_NONE;
@@ -452,36 +478,23 @@ int ghes_edac_register(struct ghes *ghes, struct device *dev)
 	mci->ctl_name = "ghes_edac";
 	mci->dev_name = "ghes";
 
-	if (!ghes_edac_mc_num) {
-		if (!fake) {
-			pr_info("This EDAC driver relies on BIOS to enumerate memory and get error reports.\n");
-			pr_info("Unfortunately, not all BIOSes reflect the memory layout correctly.\n");
-			pr_info("So, the end result of using this driver varies from vendor to vendor.\n");
-			pr_info("If you find incorrect reports, please contact your hardware vendor\n");
-			pr_info("to correct its BIOS.\n");
-			pr_info("This system has %d DIMM sockets.\n",
-				num_dimm);
-		} else {
-			pr_info("This system has a very crappy BIOS: It doesn't even list the DIMMS.\n");
-			pr_info("Its SMBIOS info is wrong. It is doubtful that the error report would\n");
-			pr_info("work on such system. Use this driver with caution\n");
-		}
+	if (fake) {
+		pr_info("This system has a very crappy BIOS: It doesn't even list the DIMMS.\n");
+		pr_info("Its SMBIOS info is wrong. It is doubtful that the error report would\n");
+		pr_info("work on such system. Use this driver with caution\n");
+	} else if (idx < 0) {
+		pr_info("This EDAC driver relies on BIOS to enumerate memory and get error reports.\n");
+		pr_info("Unfortunately, not all BIOSes reflect the memory layout correctly.\n");
+		pr_info("So, the end result of using this driver varies from vendor to vendor.\n");
+		pr_info("If you find incorrect reports, please contact your hardware vendor\n");
+		pr_info("to correct its BIOS.\n");
+		pr_info("This system has %d DIMM sockets.\n", num_dimm);
 	}
 
 	if (!fake) {
-		/*
-		 * Fill DIMM info from DMI for the memory controller #0
-		 *
-		 * Keep it in blank for the other memory controllers, as
-		 * there's no reliable way to properly credit each DIMM to
-		 * the memory controller, as different BIOSes fill the
-		 * DMI bank location fields on different ways
-		 */
-		if (!ghes_edac_mc_num) {
-			dimm_fill.count = 0;
-			dimm_fill.mci = mci;
-			dmi_walk(ghes_edac_dmidecode, &dimm_fill);
-		}
+		dimm_fill.count = 0;
+		dimm_fill.mci = mci;
+		dmi_walk(ghes_edac_dmidecode, &dimm_fill);
 	} else {
 		struct dimm_info *dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,
 						       mci->n_layers, 0, 0, 0);
@@ -497,28 +510,16 @@ int ghes_edac_register(struct ghes *ghes, struct device *dev)
 	if (rc < 0) {
 		pr_info("Can't register at EDAC core\n");
 		edac_mc_free(mci);
-		mutex_unlock(&ghes_edac_lock);
 		return -ENODEV;
 	}
-
-	ghes_edac_mc_num++;
-	mutex_unlock(&ghes_edac_lock);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(ghes_edac_register);
 
 void ghes_edac_unregister(struct ghes *ghes)
 {
 	struct mem_ctl_info *mci;
-	struct ghes_edac_pvt *pvt, *tmp;
-
-	list_for_each_entry_safe(pvt, tmp, &ghes_reglist, list) {
-		if (ghes == pvt->ghes) {
-			mci = pvt->mci;
-			edac_mc_del_mc(mci->pdev);
-			edac_mc_free(mci);
-			list_del(&pvt->list);
-		}
-	}
+
+	mci = ghes_pvt->mci;
+	edac_mc_del_mc(mci->pdev);
+	edac_mc_free(mci);
 }
-EXPORT_SYMBOL_GPL(ghes_edac_unregister);
diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c
index c16c3b931b3d..8c5540160a23 100644
--- a/drivers/edac/i7core_edac.c
+++ b/drivers/edac/i7core_edac.c
@@ -2159,8 +2159,13 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
 	mci->edac_ctl_cap = EDAC_FLAG_NONE;
 	mci->edac_cap = EDAC_FLAG_NONE;
 	mci->mod_name = "i7core_edac.c";
-	mci->ctl_name = kasprintf(GFP_KERNEL, "i7 core #%d",
-				  i7core_dev->socket);
+
+	mci->ctl_name = kasprintf(GFP_KERNEL, "i7 core #%d", i7core_dev->socket);
+	if (!mci->ctl_name) {
+		rc = -ENOMEM;
+		goto fail1;
+	}
+
 	mci->dev_name = pci_name(i7core_dev->pdev[0]);
 	mci->ctl_page_to_phys = NULL;
 
@@ -2214,6 +2219,8 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev)
 
 fail0:
 	kfree(mci->ctl_name);
+
+fail1:
 	edac_mc_free(mci);
 	i7core_dev->mci = NULL;
 	return rc;
diff --git a/drivers/edac/mce_amd.h b/drivers/edac/mce_amd.h
index 0b6a68673e0e..4e9c5e596c6c 100644
--- a/drivers/edac/mce_amd.h
+++ b/drivers/edac/mce_amd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _EDAC_MCE_AMD_H
 #define _EDAC_MCE_AMD_H
 
diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c
index 4395c84cdcbf..df28b65358d2 100644
--- a/drivers/edac/pnd2_edac.c
+++ b/drivers/edac/pnd2_edac.c
@@ -45,6 +45,8 @@
 #include "edac_module.h"
 #include "pnd2_edac.h"
 
+#define EDAC_MOD_STR		"pnd2_edac"
+
 #define APL_NUM_CHANNELS	4
 #define DNV_NUM_CHANNELS	2
 #define DNV_MAX_DIMMS		2 /* Max DIMMs per channel */
@@ -1355,7 +1357,7 @@ static int pnd2_register_mci(struct mem_ctl_info **ppmci)
 	pvt = mci->pvt_info;
 	memset(pvt, 0, sizeof(*pvt));
 
-	mci->mod_name = "pnd2_edac.c";
+	mci->mod_name = EDAC_MOD_STR;
 	mci->dev_name = ops->name;
 	mci->ctl_name = "Pondicherry2";
 
@@ -1547,10 +1549,15 @@ MODULE_DEVICE_TABLE(x86cpu, pnd2_cpuids);
 static int __init pnd2_init(void)
 {
 	const struct x86_cpu_id *id;
+	const char *owner;
 	int rc;
 
 	edac_dbg(2, "\n");
 
+	owner = edac_get_owner();
+	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
+		return -EBUSY;
+
 	id = x86_match_cpu(pnd2_cpuids);
 	if (!id)
 		return -ENODEV;
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index dc0591654011..f34430f99fd8 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -36,7 +36,7 @@ static LIST_HEAD(sbridge_edac_list);
  * Alter this version for the module when modifications are made
  */
 #define SBRIDGE_REVISION    " Ver: 1.1.2 "
-#define EDAC_MOD_STR      "sbridge_edac"
+#define EDAC_MOD_STR	    "sb_edac"
 
 /*
  * Debug macros
@@ -462,6 +462,7 @@ static const struct pci_id_table pci_dev_descr_sbridge_table[] = {
 static const struct pci_id_descr pci_dev_descr_ibridge[] = {
 		/* Processor Home Agent */
 	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0,        0, IMC0) },
+	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1,        1, IMC1) },
 
 		/* Memory controller */
 	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA,     0, IMC0) },
@@ -472,7 +473,6 @@ static const struct pci_id_descr pci_dev_descr_ibridge[] = {
 	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3,   0, IMC0) },
 
 		/* Optional, mode 2HA */
-	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1,        1, IMC1) },
 	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA,     1, IMC1) },
 	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS,    1, IMC1) },
 	{ PCI_DESCR(PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0,   1, IMC1) },
@@ -1318,9 +1318,7 @@ static int knl_get_dimm_capacity(struct sbridge_pvt *pvt, u64 *mc_sizes)
 	int cur_reg_start;
 	int mc;
 	int channel;
-	int way;
 	int participants[KNL_MAX_CHANNELS];
-	int participant_count = 0;
 
 	for (i = 0; i < KNL_MAX_CHANNELS; i++)
 		mc_sizes[i] = 0;
@@ -1495,21 +1493,14 @@ static int knl_get_dimm_capacity(struct sbridge_pvt *pvt, u64 *mc_sizes)
 		 * this channel mapped to the given target?
 		 */
 		for (channel = 0; channel < KNL_MAX_CHANNELS; channel++) {
-			for (way = 0; way < intrlv_ways; way++) {
-				int target;
-				int cha;
-
-				if (KNL_MOD3(dram_rule))
-					target = way;
-				else
-					target = 0x7 & sad_pkg(
-				pvt->info.interleave_pkg, interleave_reg, way);
+			int target;
+			int cha;
 
+			for (target = 0; target < KNL_MAX_CHANNELS; target++) {
 				for (cha = 0; cha < KNL_MAX_CHAS; cha++) {
 					if (knl_get_mc_route(target,
 						mc_route_reg[cha]) == channel
 						&& !participants[channel]) {
-						participant_count++;
 						participants[channel] = 1;
 						break;
 					}
@@ -1517,10 +1508,6 @@ static int knl_get_dimm_capacity(struct sbridge_pvt *pvt, u64 *mc_sizes)
 			}
 		}
 
-		if (participant_count != intrlv_ways)
-			edac_dbg(0, "participant_count (%d) != interleave_ways (%d): DIMM size may be incorrect\n",
-				participant_count, intrlv_ways);
-
 		for (channel = 0; channel < KNL_MAX_CHANNELS; channel++) {
 			mc = knl_channel_mc(channel);
 			if (participants[channel]) {
@@ -2291,6 +2278,13 @@ static int sbridge_get_onedevice(struct pci_dev **prev,
 next_imc:
 	sbridge_dev = get_sbridge_dev(bus, dev_descr->dom, multi_bus, sbridge_dev);
 	if (!sbridge_dev) {
+		/* If the HA1 wasn't found, don't create EDAC second memory controller */
+		if (dev_descr->dom == IMC1 && devno != 1) {
+			edac_dbg(0, "Skip IMC1: %04x:%04x (since HA1 was absent)\n",
+				 PCI_VENDOR_ID_INTEL, dev_descr->dev_id);
+			pci_dev_put(pdev);
+			return 0;
+		}
 
 		if (dev_descr->dom == SOCK)
 			goto out_imc;
@@ -2491,6 +2485,7 @@ static int ibridge_mci_bind_devs(struct mem_ctl_info *mci,
 		case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA:
 		case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA:
 			pvt->pci_ta = pdev;
+			break;
 		case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS:
 		case PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS:
 			pvt->pci_ras = pdev;
@@ -3155,7 +3150,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
 		MEM_FLAG_DDR4 : MEM_FLAG_DDR3;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE;
 	mci->edac_cap = EDAC_FLAG_NONE;
-	mci->mod_name = "sb_edac.c";
+	mci->mod_name = EDAC_MOD_STR;
 	mci->dev_name = pci_name(pdev);
 	mci->ctl_page_to_phys = NULL;
 
@@ -3287,6 +3282,11 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
 		break;
 	}
 
+	if (!mci->ctl_name) {
+		rc = -ENOMEM;
+		goto fail0;
+	}
+
 	/* Get dimm basic config and the memory layout */
 	rc = get_dimm_config(mci);
 	if (rc < 0) {
@@ -3402,10 +3402,15 @@ static void sbridge_remove(void)
 static int __init sbridge_init(void)
 {
 	const struct x86_cpu_id *id;
+	const char *owner;
 	int rc;
 
 	edac_dbg(2, "\n");
 
+	owner = edac_get_owner();
+	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
+		return -EBUSY;
+
 	id = x86_match_cpu(sbridge_cpuids);
 	if (!id)
 		return -ENODEV;
diff --git a/drivers/edac/skx_edac.c b/drivers/edac/skx_edac.c
index 16dea97568a1..912c4930c9ef 100644
--- a/drivers/edac/skx_edac.c
+++ b/drivers/edac/skx_edac.c
@@ -31,6 +31,8 @@
 
 #include "edac_module.h"
 
+#define EDAC_MOD_STR    "skx_edac"
+
 /*
  * Debug macros
  */
@@ -65,6 +67,7 @@ static u64 skx_tolm, skx_tohm;
 struct skx_dev {
 	struct list_head	list;
 	u8			bus[4];
+	int			seg;
 	struct pci_dev	*sad_all;
 	struct pci_dev	*util_all;
 	u32	mcroute;
@@ -110,12 +113,12 @@ struct decoded_addr {
 	int	bank_group;
 };
 
-static struct skx_dev *get_skx_dev(u8 bus, u8 idx)
+static struct skx_dev *get_skx_dev(struct pci_bus *bus, u8 idx)
 {
 	struct skx_dev *d;
 
 	list_for_each_entry(d, &skx_edac_list, list) {
-		if (d->bus[idx] == bus)
+		if (d->seg == pci_domain_nr(bus) && d->bus[idx] == bus->number)
 			return d;
 	}
 
@@ -172,6 +175,7 @@ static int get_all_bus_mappings(void)
 			pci_dev_put(pdev);
 			return -ENOMEM;
 		}
+		d->seg = pci_domain_nr(pdev->bus);
 		pci_read_config_dword(pdev, 0xCC, &reg);
 		d->bus[0] =  GET_BITFIELD(reg, 0, 7);
 		d->bus[1] =  GET_BITFIELD(reg, 8, 15);
@@ -207,7 +211,7 @@ static int get_all_munits(const struct munit *m)
 			if (i == NUM_IMC)
 				goto fail;
 		}
-		d = get_skx_dev(pdev->bus->number, m->busidx);
+		d = get_skx_dev(pdev->bus, m->busidx);
 		if (!d)
 			goto fail;
 
@@ -299,7 +303,7 @@ static int get_dimm_attr(u32 reg, int lobit, int hibit, int add, int minval,
 
 #define IS_DIMM_PRESENT(mtr)		GET_BITFIELD((mtr), 15, 15)
 
-#define numrank(reg) get_dimm_attr((reg), 12, 13, 0, 1, 2, "ranks")
+#define numrank(reg) get_dimm_attr((reg), 12, 13, 0, 0, 2, "ranks")
 #define numrow(reg) get_dimm_attr((reg), 2, 4, 12, 1, 6, "rows")
 #define numcol(reg) get_dimm_attr((reg), 0, 1, 10, 0, 2, "cols")
 
@@ -360,7 +364,7 @@ static int get_dimm_info(u32 mtr, u32 amap, struct dimm_info *dimm,
 
 	edac_dbg(0, "mc#%d: channel %d, dimm %d, %lld Mb (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
 		 imc->mc, chan, dimmno, size, npages,
-		 banks, ranks, rows, cols);
+		 banks, 1 << ranks, rows, cols);
 
 	imc->chan[chan].dimms[dimmno].close_pg = GET_BITFIELD(mtr, 0, 0);
 	imc->chan[chan].dimms[dimmno].bank_xor_enable = GET_BITFIELD(mtr, 9, 9);
@@ -464,12 +468,16 @@ static int skx_register_mci(struct skx_imc *imc)
 	pvt = mci->pvt_info;
 	pvt->imc = imc;
 
-	mci->ctl_name = kasprintf(GFP_KERNEL, "Skylake Socket#%d IMC#%d",
-				  imc->node_id, imc->lmc);
+	mci->ctl_name = kasprintf(GFP_KERNEL, "Skylake Socket#%d IMC#%d", imc->node_id, imc->lmc);
+	if (!mci->ctl_name) {
+		rc = -ENOMEM;
+		goto fail0;
+	}
+
 	mci->mtype_cap = MEM_FLAG_DDR4;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE;
 	mci->edac_cap = EDAC_FLAG_NONE;
-	mci->mod_name = "skx_edac.c";
+	mci->mod_name = EDAC_MOD_STR;
 	mci->dev_name = pci_name(imc->chan[0].cdev);
 	mci->ctl_page_to_phys = NULL;
 
@@ -491,6 +499,7 @@ static int skx_register_mci(struct skx_imc *imc)
 
 fail:
 	kfree(mci->ctl_name);
+fail0:
 	edac_mc_free(mci);
 	imc->mci = NULL;
 	return rc;
@@ -1039,12 +1048,17 @@ static int __init skx_init(void)
 {
 	const struct x86_cpu_id *id;
 	const struct munit *m;
+	const char *owner;
 	int rc = 0, i;
 	u8 mc = 0, src_id, node_id;
 	struct skx_dev *d;
 
 	edac_dbg(2, "\n");
 
+	owner = edac_get_owner();
+	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
+		return -EBUSY;
+
 	id = x86_match_cpu(skx_cpuids);
 	if (!id)
 		return -ENODEV;
diff --git a/drivers/edac/thunderx_edac.c b/drivers/edac/thunderx_edac.c
index f35d87519a3e..4803c6468bab 100644
--- a/drivers/edac/thunderx_edac.c
+++ b/drivers/edac/thunderx_edac.c
@@ -639,27 +639,6 @@ err_free:
 	return ret;
 }
 
-#ifdef CONFIG_PM
-static int thunderx_lmc_suspend(struct pci_dev *pdev, pm_message_t state)
-{
-	pci_save_state(pdev);
-	pci_disable_device(pdev);
-
-	pci_set_power_state(pdev, pci_choose_state(pdev, state));
-
-	return 0;
-}
-
-static int thunderx_lmc_resume(struct pci_dev *pdev)
-{
-	pci_set_power_state(pdev, PCI_D0);
-	pci_enable_wake(pdev, PCI_D0, 0);
-	pci_restore_state(pdev);
-
-	return 0;
-}
-#endif
-
 static const struct pci_device_id thunderx_lmc_pci_tbl[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVICE_ID_THUNDER_LMC) },
 	{ 0, },
@@ -834,10 +813,6 @@ static struct pci_driver thunderx_lmc_driver = {
 	.name     = "thunderx_lmc_edac",
 	.probe    = thunderx_lmc_probe,
 	.remove   = thunderx_lmc_remove,
-#ifdef CONFIG_PM
-	.suspend  = thunderx_lmc_suspend,
-	.resume   = thunderx_lmc_resume,
-#endif
 	.id_table = thunderx_lmc_pci_tbl,
 };
 
diff --git a/drivers/eisa/Makefile b/drivers/eisa/Makefile
index 5369ce957c6d..a1dd0eaec2d4 100644
--- a/drivers/eisa/Makefile
+++ b/drivers/eisa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux device tree
 
 obj-$(CONFIG_EISA)	        += eisa-bus.o
diff --git a/drivers/extcon/Makefile b/drivers/extcon/Makefile
index a73624e76193..0888fdeded72 100644
--- a/drivers/extcon/Makefile
+++ b/drivers/extcon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 # Makefile for external connector class (extcon) devices
 #
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 6f6537ab0a79..3877d86c746a 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -26,7 +26,7 @@
 #include <linux/workqueue.h>
 #include <linux/iio/consumer.h>
 #include <linux/extcon/extcon-adc-jack.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 
 /**
  * struct adc_jack_data - internal data for adc_jack device driver
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index f84da4a17724..da0e9bc4262f 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -27,7 +27,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/property.h>
 #include <linux/regulator/consumer.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 
 #include <sound/soc.h>
 
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index f4fd03e58e37..981fba56bc18 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -22,7 +22,7 @@
 #include <linux/platform_device.h>
 #include <linux/property.h>
 #include <linux/notifier.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/regmap.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index ebed22f22d75..ab770adcca7e 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -17,7 +17,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/extcon/extcon-gpio.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
diff --git a/drivers/extcon/extcon-intel-cht-wc.c b/drivers/extcon/extcon-intel-cht-wc.c
index 91a0023074af..7c4bc8c44c3f 100644
--- a/drivers/extcon/extcon-intel-cht-wc.c
+++ b/drivers/extcon/extcon-intel-cht-wc.c
@@ -15,7 +15,7 @@
  * more details.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/mfd/intel_soc_pmic.h>
diff --git a/drivers/extcon/extcon-intel-int3496.c b/drivers/extcon/extcon-intel-int3496.c
index 1a45e745717d..c8691b5a9cb0 100644
--- a/drivers/extcon/extcon-intel-int3496.c
+++ b/drivers/extcon/extcon-intel-int3496.c
@@ -19,7 +19,7 @@
  */
 
 #include <linux/acpi.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c
index f6414b7fa5bc..b871836da8a4 100644
--- a/drivers/extcon/extcon-max14577.c
+++ b/drivers/extcon/extcon-max14577.c
@@ -23,7 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/mfd/max14577.h>
 #include <linux/mfd/max14577-private.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 
 #define	DELAY_MS_DEFAULT		17000		/* unit: millisecond */
 
@@ -204,8 +204,8 @@ static int max14577_muic_set_debounce_time(struct max14577_muic_info *info,
 static int max14577_muic_set_path(struct max14577_muic_info *info,
 		u8 val, bool attached)
 {
-	int ret = 0;
 	u8 ctrl1, ctrl2 = 0;
+	int ret;
 
 	/* Set open state to path before changing hw path */
 	ret = max14577_update_reg(info->max14577->regmap,
diff --git a/drivers/extcon/extcon-max3355.c b/drivers/extcon/extcon-max3355.c
index 533e16a952b8..0aa410836f4e 100644
--- a/drivers/extcon/extcon-max3355.c
+++ b/drivers/extcon/extcon-max3355.c
@@ -9,7 +9,7 @@
  * may be copied, distributed, and modified under those terms.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/interrupt.h>
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 7a5856809047..643411066ad9 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -26,7 +26,7 @@
 #include <linux/mfd/max77693.h>
 #include <linux/mfd/max77693-common.h>
 #include <linux/mfd/max77693-private.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/regmap.h>
 #include <linux/irqdomain.h>
 
diff --git a/drivers/extcon/extcon-max77843.c b/drivers/extcon/extcon-max77843.c
index 6e722d552cf1..c9fcd6cd41cb 100644
--- a/drivers/extcon/extcon-max77843.c
+++ b/drivers/extcon/extcon-max77843.c
@@ -11,7 +11,7 @@
  * (at your option) any later version.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
@@ -80,7 +80,7 @@ enum max77843_muic_accessory_type {
 	MAX77843_MUIC_ADC_REMOTE_S12_BUTTON,
 	MAX77843_MUIC_ADC_RESERVED_ACC_1,
 	MAX77843_MUIC_ADC_RESERVED_ACC_2,
-	MAX77843_MUIC_ADC_RESERVED_ACC_3,
+	MAX77843_MUIC_ADC_RESERVED_ACC_3, /* SmartDock */
 	MAX77843_MUIC_ADC_RESERVED_ACC_4,
 	MAX77843_MUIC_ADC_RESERVED_ACC_5,
 	MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2,
@@ -119,6 +119,7 @@ enum max77843_muic_charger_type {
 	MAX77843_MUIC_CHG_SPECIAL_BIAS,
 	MAX77843_MUIC_CHG_RESERVED,
 	MAX77843_MUIC_CHG_GND,
+	MAX77843_MUIC_CHG_DOCK,
 };
 
 static const unsigned int max77843_extcon_cable[] = {
@@ -130,6 +131,7 @@ static const unsigned int max77843_extcon_cable[] = {
 	EXTCON_CHG_USB_FAST,
 	EXTCON_CHG_USB_SLOW,
 	EXTCON_DISP_MHL,
+	EXTCON_DOCK,
 	EXTCON_JIG,
 	EXTCON_NONE,
 };
@@ -200,7 +202,7 @@ static const struct regmap_irq_chip max77843_muic_irq_chip = {
 };
 
 static int max77843_muic_set_path(struct max77843_muic_info *info,
-		u8 val, bool attached)
+		u8 val, bool attached, bool nobccomp)
 {
 	struct max77693_dev *max77843 = info->max77843;
 	int ret = 0;
@@ -210,10 +212,16 @@ static int max77843_muic_set_path(struct max77843_muic_info *info,
 		ctrl1 = val;
 	else
 		ctrl1 = MAX77843_MUIC_CONTROL1_SW_OPEN;
+	if (nobccomp) {
+		/* Disable BC1.2 protocol and force manual switch control */
+		ctrl1 |= MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK;
+	}
 
 	ret = regmap_update_bits(max77843->regmap_muic,
 			MAX77843_MUIC_REG_CONTROL1,
-			MAX77843_MUIC_CONTROL1_COM_SW, ctrl1);
+			MAX77843_MUIC_CONTROL1_COM_SW |
+				MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK,
+			ctrl1);
 	if (ret < 0) {
 		dev_err(info->dev, "Cannot switch MUIC port\n");
 		return ret;
@@ -240,6 +248,21 @@ static int max77843_muic_set_path(struct max77843_muic_info *info,
 	return 0;
 }
 
+static void max77843_charger_set_otg_vbus(struct max77843_muic_info *info,
+		 bool on)
+{
+	struct max77693_dev *max77843 = info->max77843;
+	unsigned int cnfg00;
+
+	if (on)
+		cnfg00 = MAX77843_CHG_OTG_MASK | MAX77843_CHG_BOOST_MASK;
+	else
+		cnfg00 = MAX77843_CHG_ENABLE | MAX77843_CHG_BUCK_MASK;
+
+	regmap_update_bits(max77843->regmap_chg, MAX77843_CHG_REG_CHG_CNFG_00,
+			   MAX77843_CHG_MODE_MASK, cnfg00);
+}
+
 static int max77843_muic_get_cable_type(struct max77843_muic_info *info,
 		enum max77843_muic_cable_group group, bool *attached)
 {
@@ -288,6 +311,19 @@ static int max77843_muic_get_cable_type(struct max77843_muic_info *info,
 			break;
 		}
 
+		if (adc == MAX77843_MUIC_ADC_RESERVED_ACC_3) { /* SmartDock */
+			if (chg_type == MAX77843_MUIC_CHG_NONE) {
+				*attached = false;
+				cable_type = info->prev_chg_type;
+				info->prev_chg_type = MAX77843_MUIC_CHG_NONE;
+			} else {
+				*attached = true;
+				cable_type = MAX77843_MUIC_CHG_DOCK;
+				info->prev_chg_type = MAX77843_MUIC_CHG_DOCK;
+			}
+			break;
+		}
+
 		if (chg_type == MAX77843_MUIC_CHG_NONE) {
 			*attached = false;
 			cable_type = info->prev_chg_type;
@@ -350,17 +386,18 @@ static int max77843_muic_adc_gnd_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_GND_USB_HOST_VB:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_USB,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
 		extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);
+		max77843_charger_set_otg_vbus(info, attached);
 		break;
 	case MAX77843_MUIC_GND_MHL_VB:
 	case MAX77843_MUIC_GND_MHL:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -396,7 +433,7 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info,
 		return -EINVAL;
 	}
 
-	ret = max77843_muic_set_path(info, path, attached);
+	ret = max77843_muic_set_path(info, path, attached, false);
 	if (ret < 0)
 		return ret;
 
@@ -405,6 +442,26 @@ static int max77843_muic_jig_handler(struct max77843_muic_info *info,
 	return 0;
 }
 
+static int max77843_muic_dock_handler(struct max77843_muic_info *info,
+		bool attached)
+{
+	int ret;
+
+	dev_dbg(info->dev, "external connector is %s (adc: 0x10)\n",
+			attached ? "attached" : "detached");
+
+	ret = max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_USB,
+				     attached, attached);
+	if (ret < 0)
+		return ret;
+
+	extcon_set_state_sync(info->edev, EXTCON_DISP_MHL, attached);
+	extcon_set_state_sync(info->edev, EXTCON_USB_HOST, attached);
+	extcon_set_state_sync(info->edev, EXTCON_DOCK, attached);
+
+	return 0;
+}
+
 static int max77843_muic_adc_handler(struct max77843_muic_info *info)
 {
 	int ret, cable_type;
@@ -419,6 +476,11 @@ static int max77843_muic_adc_handler(struct max77843_muic_info *info)
 		info->prev_cable_type);
 
 	switch (cable_type) {
+	case MAX77843_MUIC_ADC_RESERVED_ACC_3: /* SmartDock */
+		ret = max77843_muic_dock_handler(info, attached);
+		if (ret < 0)
+			return ret;
+		break;
 	case MAX77843_MUIC_ADC_GROUND:
 		ret = max77843_muic_adc_gnd_handler(info);
 		if (ret < 0)
@@ -446,7 +508,6 @@ static int max77843_muic_adc_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_ADC_REMOTE_S12_BUTTON:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_1:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_2:
-	case MAX77843_MUIC_ADC_RESERVED_ACC_3:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_4:
 	case MAX77843_MUIC_ADC_RESERVED_ACC_5:
 	case MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE2:
@@ -490,7 +551,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_USB:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_USB,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -501,7 +562,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_DOWNSTREAM:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -511,7 +572,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_DEDICATED:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -521,7 +582,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_SPECIAL_500MA:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -531,7 +592,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 	case MAX77843_MUIC_CHG_SPECIAL_1A:
 		ret = max77843_muic_set_path(info,
 					     MAX77843_MUIC_CONTROL1_SW_OPEN,
-					     attached);
+					     attached, false);
 		if (ret < 0)
 			return ret;
 
@@ -550,6 +611,9 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 			extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP,
 						false);
 		break;
+	case MAX77843_MUIC_CHG_DOCK:
+		extcon_set_state_sync(info->edev, EXTCON_CHG_USB_DCP, attached);
+		break;
 	case MAX77843_MUIC_CHG_NONE:
 		break;
 	default:
@@ -558,7 +622,7 @@ static int max77843_muic_chg_handler(struct max77843_muic_info *info)
 			attached ? "attached" : "detached", chg_type);
 
 		max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_OPEN,
-				       attached);
+				       attached, false);
 		return -EINVAL;
 	}
 
@@ -798,7 +862,8 @@ static int max77843_muic_probe(struct platform_device *pdev)
 	max77843_muic_set_debounce_time(info, MAX77843_DEBOUNCE_TIME_25MS);
 
 	/* Set initial path for UART */
-	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true);
+	max77843_muic_set_path(info, MAX77843_MUIC_CONTROL1_SW_UART, true,
+			       false);
 
 	/* Check revision number of MUIC device */
 	ret = regmap_read(max77843->regmap_muic, MAX77843_MUIC_REG_ID, &id);
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 4a0612fb9c07..8152790d72e1 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -25,7 +25,7 @@
 #include <linux/kobject.h>
 #include <linux/mfd/max8997.h>
 #include <linux/mfd/max8997-private.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/irqdomain.h>
 
 #define	DEV_NAME			"max8997-muic"
diff --git a/drivers/extcon/extcon-qcom-spmi-misc.c b/drivers/extcon/extcon-qcom-spmi-misc.c
index b8cde096a808..660bbf163bf5 100644
--- a/drivers/extcon/extcon-qcom-spmi-misc.c
+++ b/drivers/extcon/extcon-qcom-spmi-misc.c
@@ -15,7 +15,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
diff --git a/drivers/extcon/extcon-rt8973a.c b/drivers/extcon/extcon-rt8973a.c
index eaa355e7d9e4..e059bd5f2041 100644
--- a/drivers/extcon/extcon-rt8973a.c
+++ b/drivers/extcon/extcon-rt8973a.c
@@ -20,7 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 
 #include "extcon-rt8973a.h"
 
diff --git a/drivers/extcon/extcon-sm5502.c b/drivers/extcon/extcon-sm5502.c
index 106ef0297b53..0cfb5a3efdf6 100644
--- a/drivers/extcon/extcon-sm5502.c
+++ b/drivers/extcon/extcon-sm5502.c
@@ -19,7 +19,7 @@
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 
 #include "extcon-sm5502.h"
 
diff --git a/drivers/extcon/extcon-usb-gpio.c b/drivers/extcon/extcon-usb-gpio.c
index 9c925b05b7aa..53762864a9f7 100644
--- a/drivers/extcon/extcon-usb-gpio.c
+++ b/drivers/extcon/extcon-usb-gpio.c
@@ -14,7 +14,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/init.h>
diff --git a/drivers/extcon/extcon-usbc-cros-ec.c b/drivers/extcon/extcon-usbc-cros-ec.c
index 598956f1dcae..6187f731b29d 100644
--- a/drivers/extcon/extcon-usbc-cros-ec.c
+++ b/drivers/extcon/extcon-usbc-cros-ec.c
@@ -14,7 +14,7 @@
  * GNU General Public License for more details.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/kernel.h>
 #include <linux/mfd/cros_ec.h>
 #include <linux/module.h>
diff --git a/drivers/extcon/extcon.c b/drivers/extcon/extcon.c
index 35e9fb885486..cb38c2747684 100644
--- a/drivers/extcon/extcon.c
+++ b/drivers/extcon/extcon.c
@@ -36,7 +36,7 @@
 
 #define SUPPORTED_CABLE_MAX	32
 
-struct __extcon_info {
+static const struct __extcon_info {
 	unsigned int type;
 	unsigned int id;
 	const char *name;
diff --git a/drivers/extcon/extcon.h b/drivers/extcon/extcon.h
index dddddcfa0587..93b5e0306966 100644
--- a/drivers/extcon/extcon.h
+++ b/drivers/extcon/extcon.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_EXTCON_INTERNAL_H__
 #define __LINUX_EXTCON_INTERNAL_H__
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 
 /**
  * struct extcon_dev - An extcon device represents one external connector.
diff --git a/drivers/firewire/Makefile b/drivers/firewire/Makefile
index e3870d5c43dd..e58c8c794778 100644
--- a/drivers/firewire/Makefile
+++ b/drivers/firewire/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux IEEE 1394 implementation
 #
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index d6a09b9cd8cc..4372f9e4b0da 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -137,9 +137,9 @@ int fw_cancel_transaction(struct fw_card *card,
 }
 EXPORT_SYMBOL(fw_cancel_transaction);
 
-static void split_transaction_timeout_callback(unsigned long data)
+static void split_transaction_timeout_callback(struct timer_list *timer)
 {
-	struct fw_transaction *t = (struct fw_transaction *)data;
+	struct fw_transaction *t = from_timer(t, timer, split_timeout_timer);
 	struct fw_card *card = t->card;
 	unsigned long flags;
 
@@ -373,8 +373,8 @@ void fw_send_request(struct fw_card *card, struct fw_transaction *t, int tcode,
 	t->tlabel = tlabel;
 	t->card = card;
 	t->is_split_transaction = false;
-	setup_timer(&t->split_timeout_timer,
-		    split_transaction_timeout_callback, (unsigned long)t);
+	timer_setup(&t->split_timeout_timer,
+		    split_transaction_timeout_callback, 0);
 	t->callback = callback;
 	t->callback_data = callback_data;
 
@@ -423,7 +423,7 @@ int fw_run_transaction(struct fw_card *card, int tcode, int destination_id,
 	struct transaction_callback_data d;
 	struct fw_transaction t;
 
-	init_timer_on_stack(&t.split_timeout_timer);
+	timer_setup_on_stack(&t.split_timeout_timer, NULL, 0);
 	init_completion(&d.done);
 	d.payload = payload;
 	fw_send_request(card, &t, tcode, destination_id, generation, speed,
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index c07962ead5e4..0f0bed3a4bbb 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FIREWIRE_CORE_H
 #define _FIREWIRE_CORE_H
 
diff --git a/drivers/firewire/nosy-user.h b/drivers/firewire/nosy-user.h
index e48aa6200c72..3446c5b772e5 100644
--- a/drivers/firewire/nosy-user.h
+++ b/drivers/firewire/nosy-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __nosy_user_h
 #define __nosy_user_h
 
diff --git a/drivers/firewire/nosy.h b/drivers/firewire/nosy.h
index 078ff27f4756..4078d69e93f8 100644
--- a/drivers/firewire/nosy.h
+++ b/drivers/firewire/nosy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Chip register definitions for PCILynx chipset.  Based on pcilynx.h
  * from the Linux 1394 drivers, but modified a bit so the names here
diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c
index 8bf89267dc25..ccf52368a073 100644
--- a/drivers/firewire/ohci.c
+++ b/drivers/firewire/ohci.c
@@ -734,7 +734,7 @@ static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
 	__le16 res_count, next_res_count;
 
 	i = ar_first_buffer_index(ctx);
-	res_count = ACCESS_ONCE(ctx->descriptors[i].res_count);
+	res_count = READ_ONCE(ctx->descriptors[i].res_count);
 
 	/* A buffer that is not yet completely filled must be the last one. */
 	while (i != last && res_count == 0) {
@@ -742,8 +742,7 @@ static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
 		/* Peek at the next descriptor. */
 		next_i = ar_next_buffer_index(i);
 		rmb(); /* read descriptors in order */
-		next_res_count = ACCESS_ONCE(
-				ctx->descriptors[next_i].res_count);
+		next_res_count = READ_ONCE(ctx->descriptors[next_i].res_count);
 		/*
 		 * If the next descriptor is still empty, we must stop at this
 		 * descriptor.
@@ -759,8 +758,7 @@ static unsigned int ar_search_last_active_buffer(struct ar_context *ctx,
 			if (MAX_AR_PACKET_SIZE > PAGE_SIZE && i != last) {
 				next_i = ar_next_buffer_index(next_i);
 				rmb();
-				next_res_count = ACCESS_ONCE(
-					ctx->descriptors[next_i].res_count);
+				next_res_count = READ_ONCE(ctx->descriptors[next_i].res_count);
 				if (next_res_count != cpu_to_le16(PAGE_SIZE))
 					goto next_buffer_is_active;
 			}
@@ -2812,7 +2810,7 @@ static int handle_ir_buffer_fill(struct context *context,
 	u32 buffer_dma;
 
 	req_count = le16_to_cpu(last->req_count);
-	res_count = le16_to_cpu(ACCESS_ONCE(last->res_count));
+	res_count = le16_to_cpu(READ_ONCE(last->res_count));
 	completed = req_count - res_count;
 	buffer_dma = le32_to_cpu(last->data_address);
 
diff --git a/drivers/firewire/ohci.h b/drivers/firewire/ohci.h
index ef5e7336da68..c4d005a9901a 100644
--- a/drivers/firewire/ohci.h
+++ b/drivers/firewire/ohci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FIREWIRE_OHCI_H
 #define _FIREWIRE_OHCI_H
 
diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
index a37f12e8d137..feaa890197f3 100644
--- a/drivers/firmware/Makefile
+++ b/drivers/firmware/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index 0329d319d89a..269501dfba53 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for linux kernel
 #
diff --git a/drivers/firmware/efi/libstub/Makefile b/drivers/firmware/efi/libstub/Makefile
index dedf9bde44db..adaa4a964f0c 100644
--- a/drivers/firmware/efi/libstub/Makefile
+++ b/drivers/firmware/efi/libstub/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # The stub may be linked into the kernel proper or into a separate boot binary,
 # but in either case, it executes before the kernel does (with MMU disabled) so
@@ -33,13 +34,14 @@ lib-y				:= efi-stub-helper.o gop.o secureboot.o
 lib-$(CONFIG_RESET_ATTACK_MITIGATION) += tpm.o
 
 # include the stub's generic dependencies from lib/ when building for ARM/arm64
-arm-deps := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c fdt_empty_tree.c fdt_sw.c sort.c
+arm-deps-y := fdt_rw.c fdt_ro.c fdt_wip.c fdt.c fdt_empty_tree.c fdt_sw.c
+arm-deps-$(CONFIG_ARM64) += sort.c
 
 $(obj)/lib-%.o: $(srctree)/lib/%.c FORCE
 	$(call if_changed_rule,cc_o_c)
 
 lib-$(CONFIG_EFI_ARMSTUB)	+= arm-stub.o fdt.o string.o random.o \
-				   $(patsubst %.c,lib-%.o,$(arm-deps))
+				   $(patsubst %.c,lib-%.o,$(arm-deps-y))
 
 lib-$(CONFIG_ARM)		+= arm32-stub.o
 lib-$(CONFIG_ARM64)		+= arm64-stub.o
@@ -90,5 +92,4 @@ quiet_cmd_stubcopy = STUBCPY $@
 # explicitly by the decompressor linker script.
 #
 STUBCOPY_FLAGS-$(CONFIG_ARM)	+= --rename-section .data=.data.efistub
-STUBCOPY_RM-$(CONFIG_ARM)	+= -R ___ksymtab+sort -R ___kcrctab+sort
 STUBCOPY_RELOC-$(CONFIG_ARM)	:= R_ARM_ABS
diff --git a/drivers/firmware/efi/libstub/arm-stub.c b/drivers/firmware/efi/libstub/arm-stub.c
index 1cb2d1c070c3..01a9d78ee415 100644
--- a/drivers/firmware/efi/libstub/arm-stub.c
+++ b/drivers/firmware/efi/libstub/arm-stub.c
@@ -238,7 +238,8 @@ unsigned long efi_entry(void *handle, efi_system_table_t *sys_table,
 
 	efi_random_get_seed(sys_table);
 
-	if (!nokaslr()) {
+	/* hibernation expects the runtime regions to stay in the same place */
+	if (!IS_ENABLED(CONFIG_HIBERNATION) && !nokaslr()) {
 		/*
 		 * Randomize the base of the UEFI runtime services region.
 		 * Preserve the 2 MB alignment of the region by taking a
@@ -349,7 +350,9 @@ void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
 	 * The easiest way to find adjacent regions is to sort the memory map
 	 * before traversing it.
 	 */
-	sort(memory_map, map_size / desc_size, desc_size, cmp_mem_desc, NULL);
+	if (IS_ENABLED(CONFIG_ARM64))
+		sort(memory_map, map_size / desc_size, desc_size, cmp_mem_desc,
+		     NULL);
 
 	for (l = 0; l < map_size; l += desc_size, prev = in) {
 		u64 paddr, size;
@@ -366,7 +369,8 @@ void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
 		 * a 4k page size kernel to kexec a 64k page size kernel and
 		 * vice versa.
 		 */
-		if (!regions_are_adjacent(prev, in) ||
+		if ((IS_ENABLED(CONFIG_ARM64) &&
+		     !regions_are_adjacent(prev, in)) ||
 		    !regions_have_compatible_memory_type_attrs(prev, in)) {
 
 			paddr = round_down(in->phys_addr, SZ_64K);
diff --git a/drivers/firmware/efi/libstub/efistub.h b/drivers/firmware/efi/libstub/efistub.h
index 83f268c05007..f59564b72ddc 100644
--- a/drivers/firmware/efi/libstub/efistub.h
+++ b/drivers/firmware/efi/libstub/efistub.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H
 #define _DRIVERS_FIRMWARE_EFI_EFISTUB_H
diff --git a/drivers/firmware/efi/libstub/string.c b/drivers/firmware/efi/libstub/string.c
index 09d5a0894343..ed10e3f602c5 100644
--- a/drivers/firmware/efi/libstub/string.c
+++ b/drivers/firmware/efi/libstub/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Taken from:
  *  linux/lib/string.c
diff --git a/drivers/firmware/efi/memmap.c b/drivers/firmware/efi/memmap.c
index 78686443cb37..5fc70520e04c 100644
--- a/drivers/firmware/efi/memmap.c
+++ b/drivers/firmware/efi/memmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Common EFI memory map functions.
  */
diff --git a/drivers/firmware/efi/reboot.c b/drivers/firmware/efi/reboot.c
index 22874544d301..7effff969eb9 100644
--- a/drivers/firmware/efi/reboot.c
+++ b/drivers/firmware/efi/reboot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Intel Corporation; author Matt Fleming
  * Copyright (c) 2014 Red Hat, Inc., Mark Salter <msalter@redhat.com>
diff --git a/drivers/firmware/efi/test/efi_test.c b/drivers/firmware/efi/test/efi_test.c
index 08129b7b80ab..41c48a1e8baa 100644
--- a/drivers/firmware/efi/test/efi_test.c
+++ b/drivers/firmware/efi/test/efi_test.c
@@ -593,6 +593,9 @@ static long efi_runtime_query_capsulecaps(unsigned long arg)
 	if (copy_from_user(&qcaps, qcaps_user, sizeof(qcaps)))
 		return -EFAULT;
 
+	if (qcaps.capsule_count == ULONG_MAX)
+		return -EINVAL;
+
 	capsules = kcalloc(qcaps.capsule_count + 1,
 			   sizeof(efi_capsule_header_t), GFP_KERNEL);
 	if (!capsules)
diff --git a/drivers/firmware/efi/test/efi_test.h b/drivers/firmware/efi/test/efi_test.h
index a33a6c633852..9812c6a02b40 100644
--- a/drivers/firmware/efi/test/efi_test.h
+++ b/drivers/firmware/efi/test/efi_test.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * EFI Test driver Header
  *
diff --git a/drivers/firmware/google/Makefile b/drivers/firmware/google/Makefile
index bc4de02202ad..dcd3675efcfc 100644
--- a/drivers/firmware/google/Makefile
+++ b/drivers/firmware/google/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_GOOGLE_SMI)		+= gsmi.o
 obj-$(CONFIG_GOOGLE_COREBOOT_TABLE)        += coreboot_table.o
diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index c46387160976..c8f169bf2e27 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -709,7 +709,7 @@ static u32 __init hash_oem_table_id(char s[8])
 	return local_hash_64(input, 32);
 }
 
-static struct dmi_system_id gsmi_dmi_table[] __initdata = {
+static const struct dmi_system_id gsmi_dmi_table[] __initconst = {
 	{
 		.ident = "Google Board",
 		.matches = {
diff --git a/drivers/firmware/google/memconsole-x86-legacy.c b/drivers/firmware/google/memconsole-x86-legacy.c
index 8c1bf6dbdaa6..19bcbd10855b 100644
--- a/drivers/firmware/google/memconsole-x86-legacy.c
+++ b/drivers/firmware/google/memconsole-x86-legacy.c
@@ -126,7 +126,7 @@ static bool memconsole_ebda_init(void)
 	return false;
 }
 
-static struct dmi_system_id memconsole_dmi_table[] __initdata = {
+static const struct dmi_system_id memconsole_dmi_table[] __initconst = {
 	{
 		.ident = "Google Board",
 		.matches = {
diff --git a/drivers/firmware/tegra/ivc.c b/drivers/firmware/tegra/ivc.c
index a01461d63f68..00de793e6423 100644
--- a/drivers/firmware/tegra/ivc.c
+++ b/drivers/firmware/tegra/ivc.c
@@ -99,11 +99,11 @@ static inline bool tegra_ivc_empty(struct tegra_ivc *ivc,
 {
 	/*
 	 * This function performs multiple checks on the same values with
-	 * security implications, so create snapshots with ACCESS_ONCE() to
+	 * security implications, so create snapshots with READ_ONCE() to
 	 * ensure that these checks use the same values.
 	 */
-	u32 tx = ACCESS_ONCE(header->tx.count);
-	u32 rx = ACCESS_ONCE(header->rx.count);
+	u32 tx = READ_ONCE(header->tx.count);
+	u32 rx = READ_ONCE(header->rx.count);
 
 	/*
 	 * Perform an over-full check to prevent denial of service attacks
@@ -124,8 +124,8 @@ static inline bool tegra_ivc_empty(struct tegra_ivc *ivc,
 static inline bool tegra_ivc_full(struct tegra_ivc *ivc,
 				  struct tegra_ivc_header *header)
 {
-	u32 tx = ACCESS_ONCE(header->tx.count);
-	u32 rx = ACCESS_ONCE(header->rx.count);
+	u32 tx = READ_ONCE(header->tx.count);
+	u32 rx = READ_ONCE(header->rx.count);
 
 	/*
 	 * Invalid cases where the counters indicate that the queue is over
@@ -137,8 +137,8 @@ static inline bool tegra_ivc_full(struct tegra_ivc *ivc,
 static inline u32 tegra_ivc_available(struct tegra_ivc *ivc,
 				      struct tegra_ivc_header *header)
 {
-	u32 tx = ACCESS_ONCE(header->tx.count);
-	u32 rx = ACCESS_ONCE(header->rx.count);
+	u32 tx = READ_ONCE(header->tx.count);
+	u32 rx = READ_ONCE(header->rx.count);
 
 	/*
 	 * This function isn't expected to be used in scenarios where an
@@ -151,8 +151,8 @@ static inline u32 tegra_ivc_available(struct tegra_ivc *ivc,
 
 static inline void tegra_ivc_advance_tx(struct tegra_ivc *ivc)
 {
-	ACCESS_ONCE(ivc->tx.channel->tx.count) =
-		ACCESS_ONCE(ivc->tx.channel->tx.count) + 1;
+	WRITE_ONCE(ivc->tx.channel->tx.count,
+		   READ_ONCE(ivc->tx.channel->tx.count) + 1);
 
 	if (ivc->tx.position == ivc->num_frames - 1)
 		ivc->tx.position = 0;
@@ -162,8 +162,8 @@ static inline void tegra_ivc_advance_tx(struct tegra_ivc *ivc)
 
 static inline void tegra_ivc_advance_rx(struct tegra_ivc *ivc)
 {
-	ACCESS_ONCE(ivc->rx.channel->rx.count) =
-		ACCESS_ONCE(ivc->rx.channel->rx.count) + 1;
+	WRITE_ONCE(ivc->rx.channel->rx.count,
+		   READ_ONCE(ivc->rx.channel->rx.count) + 1);
 
 	if (ivc->rx.position == ivc->num_frames - 1)
 		ivc->rx.position = 0;
@@ -428,7 +428,7 @@ int tegra_ivc_notified(struct tegra_ivc *ivc)
 
 	/* Copy the receiver's state out of shared memory. */
 	tegra_ivc_invalidate(ivc, ivc->rx.phys + offset);
-	state = ACCESS_ONCE(ivc->rx.channel->tx.state);
+	state = READ_ONCE(ivc->rx.channel->tx.state);
 
 	if (state == TEGRA_IVC_STATE_SYNC) {
 		offset = offsetof(struct tegra_ivc_header, tx.count);
diff --git a/drivers/fmc/Makefile b/drivers/fmc/Makefile
index e809322e1bac..e3da6192cf39 100644
--- a/drivers/fmc/Makefile
+++ b/drivers/fmc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_FMC) += fmc.o
 
diff --git a/drivers/fpga/Makefile b/drivers/fpga/Makefile
index e09895f0525b..f98dcf1d89e1 100644
--- a/drivers/fpga/Makefile
+++ b/drivers/fpga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the fpga framework and fpga manager drivers.
 #
diff --git a/drivers/fpga/altera-cvp.c b/drivers/fpga/altera-cvp.c
index 08629ee69d11..00e73d28077c 100644
--- a/drivers/fpga/altera-cvp.c
+++ b/drivers/fpga/altera-cvp.c
@@ -361,12 +361,12 @@ static const struct fpga_manager_ops altera_cvp_ops = {
 	.write_complete	= altera_cvp_write_complete,
 };
 
-static ssize_t show_chkcfg(struct device_driver *dev, char *buf)
+static ssize_t chkcfg_show(struct device_driver *dev, char *buf)
 {
 	return snprintf(buf, 3, "%d\n", altera_cvp_chkcfg);
 }
 
-static ssize_t store_chkcfg(struct device_driver *drv, const char *buf,
+static ssize_t chkcfg_store(struct device_driver *drv, const char *buf,
 			    size_t count)
 {
 	int ret;
@@ -378,7 +378,7 @@ static ssize_t store_chkcfg(struct device_driver *drv, const char *buf,
 	return count;
 }
 
-static DRIVER_ATTR(chkcfg, 0600, show_chkcfg, store_chkcfg);
+static DRIVER_ATTR_RW(chkcfg);
 
 static int altera_cvp_probe(struct pci_dev *pdev,
 			    const struct pci_device_id *dev_id);
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 3388d54ba114..3f80f167ed56 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -453,7 +453,8 @@ config GPIO_TS4800
 config GPIO_THUNDERX
 	tristate "Cavium ThunderX/OCTEON-TX GPIO"
 	depends on ARCH_THUNDER || (64BIT && COMPILE_TEST)
-	depends on PCI_MSI && IRQ_DOMAIN_HIERARCHY
+	depends on PCI_MSI
+	select IRQ_DOMAIN_HIERARCHY
 	select IRQ_FASTEOI_HIERARCHY_HANDLERS
 	help
 	  Say yes here to support the on-chip GPIO lines on the ThunderX
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index aeb70e9de6f2..8a2dfba3b231 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # generic gpio support: platform drivers, dedicated expander chips, etc
 
 ccflags-$(CONFIG_DEBUG_GPIO)	+= -DDEBUG
diff --git a/drivers/gpio/gpio-etraxfs.c b/drivers/gpio/gpio-etraxfs.c
index 14c6aac26780..94db1bf4bfdb 100644
--- a/drivers/gpio/gpio-etraxfs.c
+++ b/drivers/gpio/gpio-etraxfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/gpio/driver.h>
diff --git a/drivers/gpio/gpio-ftgpio010.c b/drivers/gpio/gpio-ftgpio010.c
index e9386f8b67f5..139f73d3f4ba 100644
--- a/drivers/gpio/gpio-ftgpio010.c
+++ b/drivers/gpio/gpio-ftgpio010.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Faraday Technolog FTGPIO010 gpiochip and interrupt routines
  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index dbf869fb63ce..3233b72b6828 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -518,7 +518,13 @@ static int omap_gpio_irq_type(struct irq_data *d, unsigned type)
 	if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_LEVEL_HIGH))
 		irq_set_handler_locked(d, handle_level_irq);
 	else if (type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
-		irq_set_handler_locked(d, handle_edge_irq);
+		/*
+		 * Edge IRQs are already cleared/acked in irq_handler and
+		 * not need to be masked, as result handle_edge_irq()
+		 * logic is excessed here and may cause lose of interrupts.
+		 * So just use handle_simple_irq.
+		 */
+		irq_set_handler_locked(d, handle_simple_irq);
 
 	return 0;
 
@@ -678,7 +684,7 @@ static void omap_gpio_free(struct gpio_chip *chip, unsigned offset)
 static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
 {
 	void __iomem *isr_reg = NULL;
-	u32 isr;
+	u32 enabled, isr, level_mask;
 	unsigned int bit;
 	struct gpio_bank *bank = gpiobank;
 	unsigned long wa_lock_flags;
@@ -691,23 +697,21 @@ static irqreturn_t omap_gpio_irq_handler(int irq, void *gpiobank)
 	pm_runtime_get_sync(bank->chip.parent);
 
 	while (1) {
-		u32 isr_saved, level_mask = 0;
-		u32 enabled;
-
 		raw_spin_lock_irqsave(&bank->lock, lock_flags);
 
 		enabled = omap_get_gpio_irqbank_mask(bank);
-		isr_saved = isr = readl_relaxed(isr_reg) & enabled;
+		isr = readl_relaxed(isr_reg) & enabled;
 
 		if (bank->level_mask)
 			level_mask = bank->level_mask & enabled;
+		else
+			level_mask = 0;
 
 		/* clear edge sensitive interrupts before handler(s) are
 		called so that we don't miss any interrupt occurred while
 		executing them */
-		omap_disable_gpio_irqbank(bank, isr_saved & ~level_mask);
-		omap_clear_gpio_irqbank(bank, isr_saved & ~level_mask);
-		omap_enable_gpio_irqbank(bank, isr_saved & ~level_mask);
+		if (isr & ~level_mask)
+			omap_clear_gpio_irqbank(bank, isr & ~level_mask);
 
 		raw_spin_unlock_irqrestore(&bank->lock, lock_flags);
 
@@ -1010,7 +1014,7 @@ static void omap_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 
 /*---------------------------------------------------------------------*/
 
-static void __init omap_gpio_show_rev(struct gpio_bank *bank)
+static void omap_gpio_show_rev(struct gpio_bank *bank)
 {
 	static bool called;
 	u32 rev;
diff --git a/drivers/gpio/gpio-xgene-sb.c b/drivers/gpio/gpio-xgene-sb.c
index 033258634b8c..b5843fe6a44d 100644
--- a/drivers/gpio/gpio-xgene-sb.c
+++ b/drivers/gpio/gpio-xgene-sb.c
@@ -140,8 +140,9 @@ static int xgene_gpio_sb_to_irq(struct gpio_chip *gc, u32 gpio)
 	return irq_create_fwspec_mapping(&fwspec);
 }
 
-static void xgene_gpio_sb_domain_activate(struct irq_domain *d,
-		struct irq_data *irq_data)
+static int xgene_gpio_sb_domain_activate(struct irq_domain *d,
+					 struct irq_data *irq_data,
+					 bool early)
 {
 	struct xgene_gpio_sb *priv = d->host_data;
 	u32 gpio = HWIRQ_TO_GPIO(priv, irq_data->hwirq);
@@ -150,11 +151,12 @@ static void xgene_gpio_sb_domain_activate(struct irq_domain *d,
 		dev_err(priv->gc.parent,
 		"Unable to configure XGene GPIO standby pin %d as IRQ\n",
 				gpio);
-		return;
+		return -ENOSPC;
 	}
 
 	xgene_gpio_set_bit(&priv->gc, priv->regs + MPA_GPIO_SEL_LO,
 			gpio * 2, 1);
+	return 0;
 }
 
 static void xgene_gpio_sb_domain_deactivate(struct irq_domain *d,
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 4d2113530735..eb4528c87c0b 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -203,7 +203,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
 
 	if (pin <= 255) {
 		char ev_name[5];
-		sprintf(ev_name, "_%c%02X",
+		sprintf(ev_name, "_%c%02hhX",
 			agpio->triggering == ACPI_EDGE_SENSITIVE ? 'E' : 'L',
 			pin);
 		if (ACPI_SUCCESS(acpi_get_handle(handle, ev_name, &evt_handle)))
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index a8acc197dec3..8ce07039bb89 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile
index 658bac0cdc5e..567b0377e1e2 100644
--- a/drivers/gpu/drm/amd/amdgpu/Makefile
+++ b/drivers/gpu/drm/amd/amdgpu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 12e71bbfd222..103635ab784c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -76,7 +76,7 @@
 extern int amdgpu_modeset;
 extern int amdgpu_vram_limit;
 extern int amdgpu_vis_vram_limit;
-extern unsigned amdgpu_gart_size;
+extern int amdgpu_gart_size;
 extern int amdgpu_gtt_size;
 extern int amdgpu_moverate;
 extern int amdgpu_benchmarking;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
index fb6e5dbd5a03..309f2419c6d8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c
@@ -155,7 +155,6 @@ static const struct kfd2kgd_calls kfd2kgd = {
 struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void)
 {
 	return (struct kfd2kgd_calls *)&kfd2kgd;
-	return (struct kfd2kgd_calls *)&kfd2kgd;
 }
 
 static inline struct amdgpu_device *get_amdgpu_device(struct kgd_dev *kgd)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 269b835571eb..60d8bedb694d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1079,6 +1079,9 @@ static int amdgpu_cs_process_syncobj_out_dep(struct amdgpu_cs_parser *p,
 					     GFP_KERNEL);
 	p->num_post_dep_syncobjs = 0;
 
+	if (!p->post_dep_syncobjs)
+		return -ENOMEM;
+
 	for (i = 0; i < num_deps; ++i) {
 		p->post_dep_syncobjs[i] = drm_syncobj_find(p->filp, deps[i].handle);
 		if (!p->post_dep_syncobjs[i])
@@ -1150,7 +1153,6 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	cs->out.handle = amdgpu_ctx_add_fence(p->ctx, ring, p->fence);
 	job->uf_sequence = cs->out.handle;
 	amdgpu_job_free_resources(job);
-	amdgpu_cs_parser_fini(p, 0, true);
 
 	trace_amdgpu_cs_ioctl(job);
 	amd_sched_entity_push_job(&job->base);
@@ -1208,10 +1210,7 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		goto out;
 
 	r = amdgpu_cs_submit(&parser, cs);
-	if (r)
-		goto out;
 
-	return 0;
 out:
 	amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
 	return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 1a459ac63df4..e630d918fefc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -1062,11 +1062,11 @@ static void amdgpu_check_arguments(struct amdgpu_device *adev)
 		amdgpu_sched_jobs = roundup_pow_of_two(amdgpu_sched_jobs);
 	}
 
-	if (amdgpu_gart_size < 32) {
+	if (amdgpu_gart_size != -1 && amdgpu_gart_size < 32) {
 		/* gart size must be greater or equal to 32M */
 		dev_warn(adev->dev, "gart size (%d) too small\n",
 			 amdgpu_gart_size);
-		amdgpu_gart_size = 32;
+		amdgpu_gart_size = -1;
 	}
 
 	if (amdgpu_gtt_size != -1 && amdgpu_gtt_size < 32) {
@@ -2622,12 +2622,6 @@ static int amdgpu_recover_vram_from_shadow(struct amdgpu_device *adev,
 			goto err;
 		}
 
-		r = amdgpu_ttm_bind(&bo->shadow->tbo, &bo->shadow->tbo.mem);
-		if (r) {
-			DRM_ERROR("%p bind failed\n", bo->shadow);
-			goto err;
-		}
-
 		r = amdgpu_bo_restore_from_shadow(adev, ring, bo,
 						 NULL, fence, true);
 		if (r) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index e39ec981b11c..0f16986ec5bc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -76,7 +76,7 @@
 
 int amdgpu_vram_limit = 0;
 int amdgpu_vis_vram_limit = 0;
-unsigned amdgpu_gart_size = 256;
+int amdgpu_gart_size = -1; /* auto */
 int amdgpu_gtt_size = -1; /* auto */
 int amdgpu_moverate = -1; /* auto */
 int amdgpu_benchmarking = 0;
@@ -128,7 +128,7 @@ module_param_named(vramlimit, amdgpu_vram_limit, int, 0600);
 MODULE_PARM_DESC(vis_vramlimit, "Restrict visible VRAM for testing, in megabytes");
 module_param_named(vis_vramlimit, amdgpu_vis_vram_limit, int, 0444);
 
-MODULE_PARM_DESC(gartsize, "Size of PCIE/IGP gart to setup in megabytes (32, 64, etc.)");
+MODULE_PARM_DESC(gartsize, "Size of GART to setup in megabytes (32, 64, etc., -1=auto)");
 module_param_named(gartsize, amdgpu_gart_size, uint, 0600);
 
 MODULE_PARM_DESC(gttsize, "Size of the GTT domain in megabytes (-1 = auto)");
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 333bad749067..303b5e099a98 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -260,7 +260,7 @@ static void amdgpu_fence_fallback(unsigned long arg)
  */
 int amdgpu_fence_wait_empty(struct amdgpu_ring *ring)
 {
-	uint64_t seq = ACCESS_ONCE(ring->fence_drv.sync_seq);
+	uint64_t seq = READ_ONCE(ring->fence_drv.sync_seq);
 	struct dma_fence *fence, **ptr;
 	int r;
 
@@ -300,7 +300,7 @@ unsigned amdgpu_fence_count_emitted(struct amdgpu_ring *ring)
 	amdgpu_fence_process(ring);
 	emitted = 0x100000000ull;
 	emitted -= atomic_read(&ring->fence_drv.last_seq);
-	emitted += ACCESS_ONCE(ring->fence_drv.sync_seq);
+	emitted += READ_ONCE(ring->fence_drv.sync_seq);
 	return lower_32_bits(emitted);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
index 94c1e2e8e34c..f4370081f6e6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c
@@ -57,18 +57,6 @@
  */
 
 /**
- * amdgpu_gart_set_defaults - set the default gart_size
- *
- * @adev: amdgpu_device pointer
- *
- * Set the default gart_size based on parameters and available VRAM.
- */
-void amdgpu_gart_set_defaults(struct amdgpu_device *adev)
-{
-	adev->mc.gart_size = (uint64_t)amdgpu_gart_size << 20;
-}
-
-/**
  * amdgpu_gart_table_ram_alloc - allocate system ram for gart page table
  *
  * @adev: amdgpu_device pointer
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
index d4cce6936200..afbe803b1a13 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gart.h
@@ -56,7 +56,6 @@ struct amdgpu_gart {
 	const struct amdgpu_gart_funcs *gart_funcs;
 };
 
-void amdgpu_gart_set_defaults(struct amdgpu_device *adev);
 int amdgpu_gart_table_ram_alloc(struct amdgpu_device *adev);
 void amdgpu_gart_table_ram_free(struct amdgpu_device *adev);
 int amdgpu_gart_table_vram_alloc(struct amdgpu_device *adev);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 7171968f261e..6149a47fe63d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -788,11 +788,11 @@ static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
 	seq_printf(m, "\t0x%08x: %12ld byte %s",
 		   id, amdgpu_bo_size(bo), placement);
 
-	offset = ACCESS_ONCE(bo->tbo.mem.start);
+	offset = READ_ONCE(bo->tbo.mem.start);
 	if (offset != AMDGPU_BO_INVALID_OFFSET)
 		seq_printf(m, " @ 0x%010Lx", offset);
 
-	pin_count = ACCESS_ONCE(bo->pin_count);
+	pin_count = READ_ONCE(bo->pin_count);
 	if (pin_count)
 		seq_printf(m, " pin count %d", pin_count);
 	seq_printf(m, "\n");
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 9e05e257729f..0d15eb7d31d7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -108,10 +108,10 @@ bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem)
  *
  * Allocate the address space for a node.
  */
-int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
-			 struct ttm_buffer_object *tbo,
-			 const struct ttm_place *place,
-			 struct ttm_mem_reg *mem)
+static int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
+				struct ttm_buffer_object *tbo,
+				const struct ttm_place *place,
+				struct ttm_mem_reg *mem)
 {
 	struct amdgpu_device *adev = amdgpu_ttm_adev(man->bdev);
 	struct amdgpu_gtt_mgr *mgr = man->priv;
@@ -143,12 +143,8 @@ int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
 					fpfn, lpfn, mode);
 	spin_unlock(&mgr->lock);
 
-	if (!r) {
+	if (!r)
 		mem->start = node->start;
-		if (&tbo->mem == mem)
-			tbo->offset = (tbo->mem.start << PAGE_SHIFT) +
-			    tbo->bdev->man[tbo->mem.mem_type].gpu_offset;
-	}
 
 	return r;
 }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 4bdd851f56d0..538e5f27d120 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -221,8 +221,9 @@ int amdgpu_irq_init(struct amdgpu_device *adev)
 
 	spin_lock_init(&adev->irq.lock);
 
-	/* Disable vblank irqs aggressively for power-saving */
-	adev->ddev->vblank_disable_immediate = true;
+	if (!adev->enable_virtual_display)
+		/* Disable vblank irqs aggressively for power-saving */
+		adev->ddev->vblank_disable_immediate = true;
 
 	r = drm_vblank_init(adev->ddev, adev->mode_info.num_crtc);
 	if (r) {
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index e7e899190bef..9e495da0bb03 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -91,7 +91,10 @@ static void amdgpu_ttm_placement_init(struct amdgpu_device *adev,
 
 	if (domain & AMDGPU_GEM_DOMAIN_GTT) {
 		places[c].fpfn = 0;
-		places[c].lpfn = 0;
+		if (flags & AMDGPU_GEM_CREATE_SHADOW)
+			places[c].lpfn = adev->mc.gart_size >> PAGE_SHIFT;
+		else
+			places[c].lpfn = 0;
 		places[c].flags = TTM_PL_FLAG_TT;
 		if (flags & AMDGPU_GEM_CREATE_CPU_GTT_USWC)
 			places[c].flags |= TTM_PL_FLAG_WC |
@@ -446,17 +449,16 @@ static int amdgpu_bo_create_shadow(struct amdgpu_device *adev,
 	if (bo->shadow)
 		return 0;
 
-	bo->flags |= AMDGPU_GEM_CREATE_SHADOW;
-	memset(&placements, 0,
-	       (AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place));
-
-	amdgpu_ttm_placement_init(adev, &placement,
-				  placements, AMDGPU_GEM_DOMAIN_GTT,
-				  AMDGPU_GEM_CREATE_CPU_GTT_USWC);
+	memset(&placements, 0, sizeof(placements));
+	amdgpu_ttm_placement_init(adev, &placement, placements,
+				  AMDGPU_GEM_DOMAIN_GTT,
+				  AMDGPU_GEM_CREATE_CPU_GTT_USWC |
+				  AMDGPU_GEM_CREATE_SHADOW);
 
 	r = amdgpu_bo_create_restricted(adev, size, byte_align, true,
 					AMDGPU_GEM_DOMAIN_GTT,
-					AMDGPU_GEM_CREATE_CPU_GTT_USWC,
+					AMDGPU_GEM_CREATE_CPU_GTT_USWC |
+					AMDGPU_GEM_CREATE_SHADOW,
 					NULL, &placement,
 					bo->tbo.resv,
 					0,
@@ -484,30 +486,28 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
 {
 	struct ttm_placement placement = {0};
 	struct ttm_place placements[AMDGPU_GEM_DOMAIN_MAX + 1];
+	uint64_t parent_flags = flags & ~AMDGPU_GEM_CREATE_SHADOW;
 	int r;
 
-	memset(&placements, 0,
-	       (AMDGPU_GEM_DOMAIN_MAX + 1) * sizeof(struct ttm_place));
+	memset(&placements, 0, sizeof(placements));
+	amdgpu_ttm_placement_init(adev, &placement, placements,
+				  domain, parent_flags);
 
-	amdgpu_ttm_placement_init(adev, &placement,
-				  placements, domain, flags);
-
-	r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel,
-					domain, flags, sg, &placement,
-					resv, init_value, bo_ptr);
+	r = amdgpu_bo_create_restricted(adev, size, byte_align, kernel, domain,
+					parent_flags, sg, &placement, resv,
+					init_value, bo_ptr);
 	if (r)
 		return r;
 
-	if (amdgpu_need_backup(adev) && (flags & AMDGPU_GEM_CREATE_SHADOW)) {
-		if (!resv) {
-			r = ww_mutex_lock(&(*bo_ptr)->tbo.resv->lock, NULL);
-			WARN_ON(r != 0);
-		}
+	if ((flags & AMDGPU_GEM_CREATE_SHADOW) && amdgpu_need_backup(adev)) {
+		if (!resv)
+			WARN_ON(reservation_object_lock((*bo_ptr)->tbo.resv,
+							NULL));
 
 		r = amdgpu_bo_create_shadow(adev, size, byte_align, (*bo_ptr));
 
 		if (!resv)
-			ww_mutex_unlock(&(*bo_ptr)->tbo.resv->lock);
+			reservation_object_unlock((*bo_ptr)->tbo.resv);
 
 		if (r)
 			amdgpu_bo_unref(bo_ptr);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
index 6c5646b48d1a..5ce65280b396 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
@@ -170,6 +170,16 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 		     unsigned irq_type)
 {
 	int r;
+	int sched_hw_submission = amdgpu_sched_hw_submission;
+
+	/* Set the hw submission limit higher for KIQ because
+	 * it's used for a number of gfx/compute tasks by both
+	 * KFD and KGD which may have outstanding fences and
+	 * it doesn't really use the gpu scheduler anyway;
+	 * KIQ tasks get submitted directly to the ring.
+	 */
+	if (ring->funcs->type == AMDGPU_RING_TYPE_KIQ)
+		sched_hw_submission = max(sched_hw_submission, 256);
 
 	if (ring->adev == NULL) {
 		if (adev->num_rings >= AMDGPU_MAX_RINGS)
@@ -178,8 +188,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 		ring->adev = adev;
 		ring->idx = adev->num_rings++;
 		adev->rings[ring->idx] = ring;
-		r = amdgpu_fence_driver_init_ring(ring,
-			amdgpu_sched_hw_submission);
+		r = amdgpu_fence_driver_init_ring(ring, sched_hw_submission);
 		if (r)
 			return r;
 	}
@@ -218,8 +227,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring,
 		return r;
 	}
 
-	ring->ring_size = roundup_pow_of_two(max_dw * 4 *
-					     amdgpu_sched_hw_submission);
+	ring->ring_size = roundup_pow_of_two(max_dw * 4 * sched_hw_submission);
 
 	ring->buf_mask = (ring->ring_size / 4) - 1;
 	ring->ptr_mask = ring->funcs->support_64bit_ptrs ?
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index 1c88bd5e29ad..34c99a3c8d2d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_AMDGPU_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _AMDGPU_TRACE_H_
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace_points.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace_points.c
index 385b7e1d72f9..89680d554ed8 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace_points.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace_points.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Copyright Red Hat Inc 2010.
  * Author : Dave Airlie <airlied@redhat.com>
  */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index 8b2c294f6f79..bc746131987f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -761,35 +761,11 @@ static void amdgpu_ttm_tt_unpin_userptr(struct ttm_tt *ttm)
 	sg_free_table(ttm->sg);
 }
 
-static int amdgpu_ttm_do_bind(struct ttm_tt *ttm, struct ttm_mem_reg *mem)
-{
-	struct amdgpu_ttm_tt *gtt = (void *)ttm;
-	uint64_t flags;
-	int r;
-
-	spin_lock(&gtt->adev->gtt_list_lock);
-	flags = amdgpu_ttm_tt_pte_flags(gtt->adev, ttm, mem);
-	gtt->offset = (u64)mem->start << PAGE_SHIFT;
-	r = amdgpu_gart_bind(gtt->adev, gtt->offset, ttm->num_pages,
-		ttm->pages, gtt->ttm.dma_address, flags);
-
-	if (r) {
-		DRM_ERROR("failed to bind %lu pages at 0x%08llX\n",
-			  ttm->num_pages, gtt->offset);
-		goto error_gart_bind;
-	}
-
-	list_add_tail(&gtt->list, &gtt->adev->gtt_list);
-error_gart_bind:
-	spin_unlock(&gtt->adev->gtt_list_lock);
-	return r;
-
-}
-
 static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm,
 				   struct ttm_mem_reg *bo_mem)
 {
 	struct amdgpu_ttm_tt *gtt = (void*)ttm;
+	uint64_t flags;
 	int r = 0;
 
 	if (gtt->userptr) {
@@ -809,9 +785,24 @@ static int amdgpu_ttm_backend_bind(struct ttm_tt *ttm,
 	    bo_mem->mem_type == AMDGPU_PL_OA)
 		return -EINVAL;
 
-	if (amdgpu_gtt_mgr_is_allocated(bo_mem))
-	    r = amdgpu_ttm_do_bind(ttm, bo_mem);
+	if (!amdgpu_gtt_mgr_is_allocated(bo_mem))
+		return 0;
+
+	spin_lock(&gtt->adev->gtt_list_lock);
+	flags = amdgpu_ttm_tt_pte_flags(gtt->adev, ttm, bo_mem);
+	gtt->offset = (u64)bo_mem->start << PAGE_SHIFT;
+	r = amdgpu_gart_bind(gtt->adev, gtt->offset, ttm->num_pages,
+		ttm->pages, gtt->ttm.dma_address, flags);
+
+	if (r) {
+		DRM_ERROR("failed to bind %lu pages at 0x%08llX\n",
+			  ttm->num_pages, gtt->offset);
+		goto error_gart_bind;
+	}
 
+	list_add_tail(&gtt->list, &gtt->adev->gtt_list);
+error_gart_bind:
+	spin_unlock(&gtt->adev->gtt_list_lock);
 	return r;
 }
 
@@ -824,20 +815,39 @@ bool amdgpu_ttm_is_bound(struct ttm_tt *ttm)
 
 int amdgpu_ttm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *bo_mem)
 {
+	struct amdgpu_device *adev = amdgpu_ttm_adev(bo->bdev);
 	struct ttm_tt *ttm = bo->ttm;
+	struct ttm_mem_reg tmp;
+
+	struct ttm_placement placement;
+	struct ttm_place placements;
 	int r;
 
 	if (!ttm || amdgpu_ttm_is_bound(ttm))
 		return 0;
 
-	r = amdgpu_gtt_mgr_alloc(&bo->bdev->man[TTM_PL_TT], bo,
-				 NULL, bo_mem);
-	if (r) {
-		DRM_ERROR("Failed to allocate GTT address space (%d)\n", r);
+	tmp = bo->mem;
+	tmp.mm_node = NULL;
+	placement.num_placement = 1;
+	placement.placement = &placements;
+	placement.num_busy_placement = 1;
+	placement.busy_placement = &placements;
+	placements.fpfn = 0;
+	placements.lpfn = adev->mc.gart_size >> PAGE_SHIFT;
+	placements.flags = bo->mem.placement | TTM_PL_FLAG_TT;
+
+	r = ttm_bo_mem_space(bo, &placement, &tmp, true, false);
+	if (unlikely(r))
 		return r;
-	}
 
-	return amdgpu_ttm_do_bind(ttm, bo_mem);
+	r = ttm_bo_move_ttm(bo, true, false, &tmp);
+	if (unlikely(r))
+		ttm_bo_mem_put(bo, &tmp);
+	else
+		bo->offset = (bo->mem.start << PAGE_SHIFT) +
+			bo->bdev->man[bo->mem.mem_type].gpu_offset;
+
+	return r;
 }
 
 int amdgpu_ttm_recover_gart(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
index f22a4758719d..43093bffa2cf 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
@@ -62,10 +62,6 @@ extern const struct ttm_mem_type_manager_func amdgpu_gtt_mgr_func;
 extern const struct ttm_mem_type_manager_func amdgpu_vram_mgr_func;
 
 bool amdgpu_gtt_mgr_is_allocated(struct ttm_mem_reg *mem);
-int amdgpu_gtt_mgr_alloc(struct ttm_mem_type_manager *man,
-			 struct ttm_buffer_object *tbo,
-			 const struct ttm_place *place,
-			 struct ttm_mem_reg *mem);
 uint64_t amdgpu_gtt_mgr_usage(struct ttm_mem_type_manager *man);
 
 uint64_t amdgpu_vram_mgr_usage(struct ttm_mem_type_manager *man);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b9a5a77eedaf..bd20ff018512 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -165,14 +165,6 @@ static int amdgpu_vm_validate_level(struct amdgpu_vm_pt *parent,
 	unsigned i;
 	int r;
 
-	if (parent->bo->shadow) {
-		struct amdgpu_bo *shadow = parent->bo->shadow;
-
-		r = amdgpu_ttm_bind(&shadow->tbo, &shadow->tbo.mem);
-		if (r)
-			return r;
-	}
-
 	if (use_cpu_for_update) {
 		r = amdgpu_bo_kmap(parent->bo, NULL);
 		if (r)
@@ -1277,7 +1269,7 @@ static void amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p,
 	/* In the case of a mixed PT the PDE must point to it*/
 	if (p->adev->asic_type < CHIP_VEGA10 ||
 	    nptes != AMDGPU_VM_PTE_COUNT(p->adev) ||
-	    p->func == amdgpu_vm_do_copy_ptes ||
+	    p->src ||
 	    !(flags & AMDGPU_PTE_VALID)) {
 
 		dst = amdgpu_bo_gpu_offset(entry->bo);
@@ -1294,9 +1286,23 @@ static void amdgpu_vm_handle_huge_pages(struct amdgpu_pte_update_params *p,
 	entry->addr = (dst | flags);
 
 	if (use_cpu_update) {
+		/* In case a huge page is replaced with a system
+		 * memory mapping, p->pages_addr != NULL and
+		 * amdgpu_vm_cpu_set_ptes would try to translate dst
+		 * through amdgpu_vm_map_gart. But dst is already a
+		 * GPU address (of the page table). Disable
+		 * amdgpu_vm_map_gart temporarily.
+		 */
+		dma_addr_t *tmp;
+
+		tmp = p->pages_addr;
+		p->pages_addr = NULL;
+
 		pd_addr = (unsigned long)amdgpu_bo_kptr(parent->bo);
 		pde = pd_addr + (entry - parent->entries) * 8;
 		amdgpu_vm_cpu_set_ptes(p, pde, dst, 1, 0, flags);
+
+		p->pages_addr = tmp;
 	} else {
 		if (parent->bo->shadow) {
 			pd_addr = amdgpu_bo_gpu_offset(parent->bo->shadow);
@@ -1610,7 +1616,6 @@ error_free:
  *
  * @adev: amdgpu_device pointer
  * @exclusive: fence we need to sync to
- * @gtt_flags: flags as they are used for GTT
  * @pages_addr: DMA addresses to use for mapping
  * @vm: requested vm
  * @mapping: mapped range and flags to use for the update
@@ -1624,7 +1629,6 @@ error_free:
  */
 static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
 				      struct dma_fence *exclusive,
-				      uint64_t gtt_flags,
 				      dma_addr_t *pages_addr,
 				      struct amdgpu_vm *vm,
 				      struct amdgpu_bo_va_mapping *mapping,
@@ -1679,11 +1683,7 @@ static int amdgpu_vm_bo_split_mapping(struct amdgpu_device *adev,
 		}
 
 		if (pages_addr) {
-			if (flags == gtt_flags)
-				src = adev->gart.table_addr +
-					(addr >> AMDGPU_GPU_PAGE_SHIFT) * 8;
-			else
-				max_entries = min(max_entries, 16ull * 1024ull);
+			max_entries = min(max_entries, 16ull * 1024ull);
 			addr = 0;
 		} else if (flags & AMDGPU_PTE_VALID) {
 			addr += adev->vm_manager.vram_base_offset;
@@ -1728,10 +1728,10 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
 	struct amdgpu_vm *vm = bo_va->base.vm;
 	struct amdgpu_bo_va_mapping *mapping;
 	dma_addr_t *pages_addr = NULL;
-	uint64_t gtt_flags, flags;
 	struct ttm_mem_reg *mem;
 	struct drm_mm_node *nodes;
 	struct dma_fence *exclusive;
+	uint64_t flags;
 	int r;
 
 	if (clear || !bo_va->base.bo) {
@@ -1751,15 +1751,10 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
 		exclusive = reservation_object_get_excl(bo->tbo.resv);
 	}
 
-	if (bo) {
+	if (bo)
 		flags = amdgpu_ttm_tt_pte_flags(adev, bo->tbo.ttm, mem);
-		gtt_flags = (amdgpu_ttm_is_bound(bo->tbo.ttm) &&
-			adev == amdgpu_ttm_adev(bo->tbo.bdev)) ?
-			flags : 0;
-	} else {
+	else
 		flags = 0x0;
-		gtt_flags = ~0x0;
-	}
 
 	spin_lock(&vm->status_lock);
 	if (!list_empty(&bo_va->base.vm_status))
@@ -1767,8 +1762,7 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev,
 	spin_unlock(&vm->status_lock);
 
 	list_for_each_entry(mapping, &bo_va->invalids, list) {
-		r = amdgpu_vm_bo_split_mapping(adev, exclusive,
-					       gtt_flags, pages_addr, vm,
+		r = amdgpu_vm_bo_split_mapping(adev, exclusive, pages_addr, vm,
 					       mapping, flags, nodes,
 					       &bo_va->last_pt_update);
 		if (r)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
index d228f5a99044..dbbe986f90f2 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v6_0.c
@@ -636,7 +636,194 @@ static void gfx_v6_0_tiling_mode_table_init(struct amdgpu_device *adev)
 				NUM_BANKS(ADDR_SURF_2_BANK);
 		for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
 			WREG32(mmGB_TILE_MODE0 + reg_offset, tilemode[reg_offset]);
-	} else if (adev->asic_type == CHIP_OLAND || adev->asic_type == CHIP_HAINAN) {
+	} else if (adev->asic_type == CHIP_OLAND) {
+		tilemode[0] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[1] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[2] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[3] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_128B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[4] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[5] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(split_equal_to_row_size) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[6] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(split_equal_to_row_size) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[7] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(split_equal_to_row_size) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[8] =   MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_LINEAR_ALIGNED) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[9] =   MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[10] =  MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[11] =  MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[12] =  MICRO_TILE_MODE(ADDR_SURF_DISPLAY_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[13] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_1D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_64B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[14] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[15] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[16] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[17] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P4_8x16) |
+				TILE_SPLIT(split_equal_to_row_size) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[21] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_2) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[22] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_4) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_4);
+		tilemode[23] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_256B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_2) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[24] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_512B) |
+				NUM_BANKS(ADDR_SURF_16_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_2);
+		tilemode[25] =  MICRO_TILE_MODE(ADDR_SURF_THIN_MICRO_TILING) |
+				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
+				PIPE_CONFIG(ADDR_SURF_P8_32x32_8x16) |
+				TILE_SPLIT(ADDR_SURF_TILE_SPLIT_1KB) |
+				NUM_BANKS(ADDR_SURF_8_BANK) |
+				BANK_WIDTH(ADDR_SURF_BANK_WIDTH_1) |
+				BANK_HEIGHT(ADDR_SURF_BANK_HEIGHT_1) |
+				MACRO_TILE_ASPECT(ADDR_SURF_MACRO_ASPECT_1);
+		for (reg_offset = 0; reg_offset < num_tile_mode_states; reg_offset++)
+			WREG32(mmGB_TILE_MODE0 + reg_offset, tilemode[reg_offset]);
+	} else if (adev->asic_type == CHIP_HAINAN) {
 		tilemode[0] =   MICRO_TILE_MODE(ADDR_SURF_DEPTH_MICRO_TILING) |
 				ARRAY_MODE(ARRAY_2D_TILED_THIN1) |
 				PIPE_CONFIG(ADDR_SURF_P2) |
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
index 832e592fcd07..fc260c13b1da 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
@@ -4579,9 +4579,9 @@ static int gfx_v8_0_mqd_init(struct amdgpu_ring *ring)
 	mqd->compute_misc_reserved = 0x00000003;
 	if (!(adev->flags & AMD_IS_APU)) {
 		mqd->dynamic_cu_mask_addr_lo = lower_32_bits(ring->mqd_gpu_addr
-					     + offsetof(struct vi_mqd_allocation, dyamic_cu_mask));
+					     + offsetof(struct vi_mqd_allocation, dynamic_cu_mask));
 		mqd->dynamic_cu_mask_addr_hi = upper_32_bits(ring->mqd_gpu_addr
-					     + offsetof(struct vi_mqd_allocation, dyamic_cu_mask));
+					     + offsetof(struct vi_mqd_allocation, dynamic_cu_mask));
 	}
 	eop_base_addr = ring->eop_gpu_addr >> 8;
 	mqd->cp_hqd_eop_base_addr_lo = eop_base_addr;
@@ -4768,8 +4768,8 @@ static int gfx_v8_0_kiq_init_queue(struct amdgpu_ring *ring)
 		mutex_unlock(&adev->srbm_mutex);
 	} else {
 		memset((void *)mqd, 0, sizeof(struct vi_mqd_allocation));
-		((struct vi_mqd_allocation *)mqd)->dyamic_cu_mask = 0xFFFFFFFF;
-		((struct vi_mqd_allocation *)mqd)->dyamic_rb_mask = 0xFFFFFFFF;
+		((struct vi_mqd_allocation *)mqd)->dynamic_cu_mask = 0xFFFFFFFF;
+		((struct vi_mqd_allocation *)mqd)->dynamic_rb_mask = 0xFFFFFFFF;
 		mutex_lock(&adev->srbm_mutex);
 		vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
 		gfx_v8_0_mqd_init(ring);
@@ -4792,8 +4792,8 @@ static int gfx_v8_0_kcq_init_queue(struct amdgpu_ring *ring)
 
 	if (!adev->gfx.in_reset && !adev->gfx.in_suspend) {
 		memset((void *)mqd, 0, sizeof(struct vi_mqd_allocation));
-		((struct vi_mqd_allocation *)mqd)->dyamic_cu_mask = 0xFFFFFFFF;
-		((struct vi_mqd_allocation *)mqd)->dyamic_rb_mask = 0xFFFFFFFF;
+		((struct vi_mqd_allocation *)mqd)->dynamic_cu_mask = 0xFFFFFFFF;
+		((struct vi_mqd_allocation *)mqd)->dynamic_rb_mask = 0xFFFFFFFF;
 		mutex_lock(&adev->srbm_mutex);
 		vi_srbm_select(adev, ring->me, ring->pipe, ring->queue, 0);
 		gfx_v8_0_mqd_init(ring);
diff --git a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
index 4f2788b61a08..6c8040e616c4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfxhub_v1_0.c
@@ -124,7 +124,7 @@ static void gfxhub_v1_0_init_tlb_regs(struct amdgpu_device *adev)
 
 static void gfxhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 {
-	uint32_t tmp, field;
+	uint32_t tmp;
 
 	/* Setup L2 cache */
 	tmp = RREG32_SOC15(GC, 0, mmVM_L2_CNTL);
@@ -143,9 +143,8 @@ static void gfxhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 	WREG32_SOC15(GC, 0, mmVM_L2_CNTL2, tmp);
 
-	field = adev->vm_manager.fragment_size;
 	tmp = mmVM_L2_CNTL3_DEFAULT;
-	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
+	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
 	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 	WREG32_SOC15(GC, 0, mmVM_L2_CNTL3, tmp);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
index 12b0c4cd7a5a..5be9c83dfcf7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c
@@ -332,7 +332,24 @@ static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
 	adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 	adev->mc.visible_vram_size = adev->mc.aper_size;
 
-	amdgpu_gart_set_defaults(adev);
+	/* set the gart size */
+	if (amdgpu_gart_size == -1) {
+		switch (adev->asic_type) {
+		case CHIP_HAINAN:    /* no MM engines */
+		default:
+			adev->mc.gart_size = 256ULL << 20;
+			break;
+		case CHIP_VERDE:    /* UVD, VCE do not support GPUVM */
+		case CHIP_TAHITI:   /* UVD, VCE do not support GPUVM */
+		case CHIP_PITCAIRN: /* UVD, VCE do not support GPUVM */
+		case CHIP_OLAND:    /* UVD, VCE do not support GPUVM */
+			adev->mc.gart_size = 1024ULL << 20;
+			break;
+		}
+	} else {
+		adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
+	}
+
 	gmc_v6_0_vram_gtt_location(adev, &adev->mc);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index e42c1ad3af5e..eace9e7182c8 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -386,7 +386,27 @@ static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 	if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 		adev->mc.visible_vram_size = adev->mc.real_vram_size;
 
-	amdgpu_gart_set_defaults(adev);
+	/* set the gart size */
+	if (amdgpu_gart_size == -1) {
+		switch (adev->asic_type) {
+		case CHIP_TOPAZ:     /* no MM engines */
+		default:
+			adev->mc.gart_size = 256ULL << 20;
+			break;
+#ifdef CONFIG_DRM_AMDGPU_CIK
+		case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
+		case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
+		case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
+		case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
+		case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
+			adev->mc.gart_size = 1024ULL << 20;
+			break;
+#endif
+		}
+	} else {
+		adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
+	}
+
 	gmc_v7_0_vram_gtt_location(adev, &adev->mc);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 7ca2dae8237a..3b3326daf32b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -562,7 +562,26 @@ static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 	if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 		adev->mc.visible_vram_size = adev->mc.real_vram_size;
 
-	amdgpu_gart_set_defaults(adev);
+	/* set the gart size */
+	if (amdgpu_gart_size == -1) {
+		switch (adev->asic_type) {
+		case CHIP_POLARIS11: /* all engines support GPUVM */
+		case CHIP_POLARIS10: /* all engines support GPUVM */
+		case CHIP_POLARIS12: /* all engines support GPUVM */
+		default:
+			adev->mc.gart_size = 256ULL << 20;
+			break;
+		case CHIP_TONGA:   /* UVD, VCE do not support GPUVM */
+		case CHIP_FIJI:    /* UVD, VCE do not support GPUVM */
+		case CHIP_CARRIZO: /* UVD, VCE do not support GPUVM, DCE SG support */
+		case CHIP_STONEY:  /* UVD does not support GPUVM, DCE SG support */
+			adev->mc.gart_size = 1024ULL << 20;
+			break;
+		}
+	} else {
+		adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
+	}
+
 	gmc_v8_0_vram_gtt_location(adev, &adev->mc);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 2769c2b3b56e..d04d0b123212 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -499,7 +499,21 @@ static int gmc_v9_0_mc_init(struct amdgpu_device *adev)
 	if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 		adev->mc.visible_vram_size = adev->mc.real_vram_size;
 
-	amdgpu_gart_set_defaults(adev);
+	/* set the gart size */
+	if (amdgpu_gart_size == -1) {
+		switch (adev->asic_type) {
+		case CHIP_VEGA10:  /* all engines support GPUVM */
+		default:
+			adev->mc.gart_size = 256ULL << 20;
+			break;
+		case CHIP_RAVEN:   /* DCE SG support */
+			adev->mc.gart_size = 1024ULL << 20;
+			break;
+		}
+	} else {
+		adev->mc.gart_size = (u64)amdgpu_gart_size << 20;
+	}
+
 	gmc_v9_0_vram_gtt_location(adev, &adev->mc);
 
 	return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
index 4395a4f12149..74cb647da30e 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v1_0.c
@@ -138,7 +138,7 @@ static void mmhub_v1_0_init_tlb_regs(struct amdgpu_device *adev)
 
 static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 {
-	uint32_t tmp, field;
+	uint32_t tmp;
 
 	/* Setup L2 cache */
 	tmp = RREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL);
@@ -157,9 +157,8 @@ static void mmhub_v1_0_init_cache_regs(struct amdgpu_device *adev)
 	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 	WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL2, tmp);
 
-	field = adev->vm_manager.fragment_size;
 	tmp = mmVM_L2_CNTL3_DEFAULT;
-	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
+	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 9);
 	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
 	WREG32_SOC15(MMHUB, 0, mmVM_L2_CNTL3, tmp);
 
diff --git a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
index 31db356476f8..62cd16a23921 100644
--- a/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
@@ -93,6 +93,10 @@ static int uvd_v6_0_early_init(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (!(adev->flags & AMD_IS_APU) &&
+	    (RREG32_SMC(ixCC_HARVEST_FUSES) & CC_HARVEST_FUSES__UVD_DISABLE_MASK))
+		return -ENOENT;
+
 	uvd_v6_0_set_ring_funcs(adev);
 	uvd_v6_0_set_irq_funcs(adev);
 
@@ -225,11 +229,7 @@ static int uvd_v6_0_suspend(void *handle)
 	if (r)
 		return r;
 
-	/* Skip this for APU for now */
-	if (!(adev->flags & AMD_IS_APU))
-		r = amdgpu_uvd_suspend(adev);
-
-	return r;
+	return amdgpu_uvd_suspend(adev);
 }
 
 static int uvd_v6_0_resume(void *handle)
@@ -237,12 +237,10 @@ static int uvd_v6_0_resume(void *handle)
 	int r;
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
-	/* Skip this for APU for now */
-	if (!(adev->flags & AMD_IS_APU)) {
-		r = amdgpu_uvd_resume(adev);
-		if (r)
-			return r;
-	}
+	r = amdgpu_uvd_resume(adev);
+	if (r)
+		return r;
+
 	return uvd_v6_0_hw_init(adev);
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
index 90332f55cfba..cf81065e3c5a 100644
--- a/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vce_v3_0.c
@@ -365,15 +365,10 @@ static unsigned vce_v3_0_get_harvest_config(struct amdgpu_device *adev)
 {
 	u32 tmp;
 
-	/* Fiji, Stoney, Polaris10, Polaris11, Polaris12 are single pipe */
 	if ((adev->asic_type == CHIP_FIJI) ||
-	    (adev->asic_type == CHIP_STONEY) ||
-	    (adev->asic_type == CHIP_POLARIS10) ||
-	    (adev->asic_type == CHIP_POLARIS11) ||
-	    (adev->asic_type == CHIP_POLARIS12))
+	    (adev->asic_type == CHIP_STONEY))
 		return AMDGPU_VCE_HARVEST_VCE1;
 
-	/* Tonga and CZ are dual or single pipe */
 	if (adev->flags & AMD_IS_APU)
 		tmp = (RREG32_SMC(ixVCE_HARVEST_FUSE_MACRO__ADDRESS) &
 		       VCE_HARVEST_FUSE_MACRO__MASK) >>
@@ -391,6 +386,11 @@ static unsigned vce_v3_0_get_harvest_config(struct amdgpu_device *adev)
 	case 3:
 		return AMDGPU_VCE_HARVEST_VCE0 | AMDGPU_VCE_HARVEST_VCE1;
 	default:
+		if ((adev->asic_type == CHIP_POLARIS10) ||
+		    (adev->asic_type == CHIP_POLARIS11) ||
+		    (adev->asic_type == CHIP_POLARIS12))
+			return AMDGPU_VCE_HARVEST_VCE1;
+
 		return 0;
 	}
 }
diff --git a/drivers/gpu/drm/amd/amdkfd/Makefile b/drivers/gpu/drm/amd/amdkfd/Makefile
index b400d5664252..7bb0bc0ca3d6 100644
--- a/drivers/gpu/drm/amd/amdkfd/Makefile
+++ b/drivers/gpu/drm/amd/amdkfd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Heterogenous System Architecture support for AMD GPU devices
 #
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
index e4a8c2e52cb2..660b3fbade41 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -892,6 +892,8 @@ static int kfd_ioctl_get_tile_config(struct file *filep,
 	int err = 0;
 
 	dev = kfd_device_by_id(args->gpu_id);
+	if (!dev)
+		return -EINVAL;
 
 	dev->kfd2kgd->get_tile_config(dev->kgd, &config);
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
index 5979158c3f7b..944abfad39c1 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_events.c
@@ -292,7 +292,10 @@ static int create_signal_event(struct file *devkfd,
 				struct kfd_event *ev)
 {
 	if (p->signal_event_count == KFD_SIGNAL_EVENT_LIMIT) {
-		pr_warn("Signal event wasn't created because limit was reached\n");
+		if (!p->signal_event_limit_reached) {
+			pr_warn("Signal event wasn't created because limit was reached\n");
+			p->signal_event_limit_reached = true;
+		}
 		return -ENOMEM;
 	}
 
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
index 681b639f5133..ed71ad40e8f7 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c
@@ -183,8 +183,8 @@ static void uninitialize(struct kernel_queue *kq)
 {
 	if (kq->queue->properties.type == KFD_QUEUE_TYPE_HIQ)
 		kq->mqd->destroy_mqd(kq->mqd,
-					NULL,
-					false,
+					kq->queue->mqd,
+					KFD_PREEMPT_TYPE_WAVEFRONT_RESET,
 					QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS,
 					kq->queue->pipe,
 					kq->queue->queue);
@@ -210,6 +210,11 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
 	uint32_t wptr, rptr;
 	unsigned int *queue_address;
 
+	/* When rptr == wptr, the buffer is empty.
+	 * When rptr == wptr + 1, the buffer is full.
+	 * It is always rptr that advances to the position of wptr, rather than
+	 * the opposite. So we can only use up to queue_size_dwords - 1 dwords.
+	 */
 	rptr = *kq->rptr_kernel;
 	wptr = *kq->wptr_kernel;
 	queue_address = (unsigned int *)kq->pq_kernel_addr;
@@ -219,11 +224,10 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
 	pr_debug("wptr: %d\n", wptr);
 	pr_debug("queue_address 0x%p\n", queue_address);
 
-	available_size = (rptr - 1 - wptr + queue_size_dwords) %
+	available_size = (rptr + queue_size_dwords - 1 - wptr) %
 							queue_size_dwords;
 
-	if (packet_size_in_dwords >= queue_size_dwords ||
-			packet_size_in_dwords >= available_size) {
+	if (packet_size_in_dwords > available_size) {
 		/*
 		 * make sure calling functions know
 		 * acquire_packet_buffer() failed
@@ -233,6 +237,14 @@ static int acquire_packet_buffer(struct kernel_queue *kq,
 	}
 
 	if (wptr + packet_size_in_dwords >= queue_size_dwords) {
+		/* make sure after rolling back to position 0, there is
+		 * still enough space.
+		 */
+		if (packet_size_in_dwords >= rptr) {
+			*buffer_ptr = NULL;
+			return -ENOMEM;
+		}
+		/* fill nops, roll back and start at position 0 */
 		while (wptr > 0) {
 			queue_address[wptr] = kq->nop_packet;
 			wptr = (wptr + 1) % queue_size_dwords;
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
index b397ec726400..b87e96cee5fa 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h
@@ -521,6 +521,7 @@ struct kfd_process {
 	struct list_head signal_event_pages;
 	u32 next_nonsignal_event_id;
 	size_t signal_event_count;
+	bool signal_event_limit_reached;
 };
 
 /**
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
index 1cae95e2b13a..03bec765b03d 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
@@ -143,7 +143,6 @@ int pqm_create_queue(struct process_queue_manager *pqm,
 	int num_queues = 0;
 	struct queue *cur;
 
-	memset(&q_properties, 0, sizeof(struct queue_properties));
 	memcpy(&q_properties, properties, sizeof(struct queue_properties));
 	q = NULL;
 	kq = NULL;
diff --git a/drivers/gpu/drm/amd/include/vi_structs.h b/drivers/gpu/drm/amd/include/vi_structs.h
index ca93b5160ba6..3e606a761d0e 100644
--- a/drivers/gpu/drm/amd/include/vi_structs.h
+++ b/drivers/gpu/drm/amd/include/vi_structs.h
@@ -419,8 +419,8 @@ struct vi_mqd_allocation {
 	struct vi_mqd mqd;
 	uint32_t wptr_poll_mem;
 	uint32_t rptr_report_mem;
-	uint32_t dyamic_cu_mask;
-	uint32_t dyamic_rb_mask;
+	uint32_t dynamic_cu_mask;
+	uint32_t dynamic_rb_mask;
 };
 
 struct cz_mqd {
diff --git a/drivers/gpu/drm/amd/powerplay/Makefile b/drivers/gpu/drm/amd/powerplay/Makefile
index 4e132b936e3d..72d5f50508b6 100644
--- a/drivers/gpu/drm/amd/powerplay/Makefile
+++ b/drivers/gpu/drm/amd/powerplay/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 subdir-ccflags-y += \
 		-I$(FULL_AMD_PATH)/powerplay/inc/  \
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile b/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile
index f0277c16c2bf..d13fdadbbf9e 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the 'hw manager' sub-component of powerplay.
 # It provides the hardware management services for the driver.
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_overdriver.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_overdriver.c
index d09f25485844..e0766c5e3d74 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_overdriver.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_overdriver.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "pp_overdriver.h"
 #include <linux/errno.h>
 
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index c2743233ba10..b526f49be65d 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -830,7 +830,7 @@ uint32_t smu7_get_xclk(struct pp_hwmgr *hwmgr)
 {
 	uint32_t reference_clock, tmp;
 	struct cgs_display_info info = {0};
-	struct cgs_mode_info mode_info;
+	struct cgs_mode_info mode_info = {0};
 
 	info.mode_info = &mode_info;
 
@@ -3948,10 +3948,9 @@ static int smu7_program_display_gap(struct pp_hwmgr *hwmgr)
 	uint32_t ref_clock;
 	uint32_t refresh_rate = 0;
 	struct cgs_display_info info = {0};
-	struct cgs_mode_info mode_info;
+	struct cgs_mode_info mode_info = {0};
 
 	info.mode_info = &mode_info;
-
 	cgs_get_active_displays_info(hwmgr->device, &info);
 	num_active_displays = info.display_count;
 
@@ -3967,6 +3966,7 @@ static int smu7_program_display_gap(struct pp_hwmgr *hwmgr)
 	frame_time_in_us = 1000000 / refresh_rate;
 
 	pre_vbi_time_in_us = frame_time_in_us - 200 - mode_info.vblank_time_us;
+
 	data->frame_time_x2 = frame_time_in_us * 2 / 100;
 
 	display_gap2 = pre_vbi_time_in_us * (ref_clock / 100);
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 9d71a259d97d..f8f02e70b8bc 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -1558,7 +1558,8 @@ static int vega10_populate_smc_link_levels(struct pp_hwmgr *hwmgr)
 */
 
 static int vega10_populate_single_gfx_level(struct pp_hwmgr *hwmgr,
-		uint32_t gfx_clock, PllSetting_t *current_gfxclk_level)
+		uint32_t gfx_clock, PllSetting_t *current_gfxclk_level,
+		uint32_t *acg_freq)
 {
 	struct phm_ppt_v2_information *table_info =
 			(struct phm_ppt_v2_information *)(hwmgr->pptable);
@@ -1609,6 +1610,8 @@ static int vega10_populate_single_gfx_level(struct pp_hwmgr *hwmgr,
 			cpu_to_le16(dividers.usPll_ss_slew_frac);
 	current_gfxclk_level->Did = (uint8_t)(dividers.ulDid);
 
+	*acg_freq = gfx_clock / 100; /* 100 Khz to Mhz conversion */
+
 	return 0;
 }
 
@@ -1689,7 +1692,8 @@ static int vega10_populate_all_graphic_levels(struct pp_hwmgr *hwmgr)
 	for (i = 0; i < dpm_table->count; i++) {
 		result = vega10_populate_single_gfx_level(hwmgr,
 				dpm_table->dpm_levels[i].value,
-				&(pp_table->GfxclkLevel[i]));
+				&(pp_table->GfxclkLevel[i]),
+				&(pp_table->AcgFreqTable[i]));
 		if (result)
 			return result;
 	}
@@ -1698,7 +1702,8 @@ static int vega10_populate_all_graphic_levels(struct pp_hwmgr *hwmgr)
 	while (i < NUM_GFXCLK_DPM_LEVELS) {
 		result = vega10_populate_single_gfx_level(hwmgr,
 				dpm_table->dpm_levels[j].value,
-				&(pp_table->GfxclkLevel[i]));
+				&(pp_table->GfxclkLevel[i]),
+				&(pp_table->AcgFreqTable[i]));
 		if (result)
 			return result;
 		i++;
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu72.h b/drivers/gpu/drm/amd/powerplay/inc/smu72.h
index b73d6b59ac32..08cd70c75d8b 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu72.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu72.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SMU72_H
 #define SMU72_H
 
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu72_discrete.h b/drivers/gpu/drm/amd/powerplay/inc/smu72_discrete.h
index 98f76e925e65..b2edbc0c3c4d 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu72_discrete.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu72_discrete.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SMU72_DISCRETE_H
 #define SMU72_DISCRETE_H
 
diff --git a/drivers/gpu/drm/amd/powerplay/inc/smu9_driver_if.h b/drivers/gpu/drm/amd/powerplay/inc/smu9_driver_if.h
index f6d6c61f796a..2818c98ff5ca 100644
--- a/drivers/gpu/drm/amd/powerplay/inc/smu9_driver_if.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu9_driver_if.h
@@ -315,10 +315,12 @@ typedef struct {
   uint8_t      AcgEnable[NUM_GFXCLK_DPM_LEVELS];
   GbVdroopTable_t AcgBtcGbVdroopTable;
   QuadraticInt_t  AcgAvfsGb;
-  uint32_t     Reserved[4];
+
+  /* ACG Frequency Table, in Mhz */
+  uint32_t     AcgFreqTable[NUM_GFXCLK_DPM_LEVELS];
 
   /* Padding - ignore */
-  uint32_t     MmHubPadding[7]; /* SMU internal use */
+  uint32_t     MmHubPadding[3]; /* SMU internal use */
 
 } PPTable_t;
 
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/Makefile b/drivers/gpu/drm/amd/powerplay/smumgr/Makefile
index 1703bbefbfd5..e7ad45297b1d 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/Makefile
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the 'smu manager' sub-component of powerplay.
 # It provides the smu management services for the driver.
diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
index 76347ff6d655..c49a6f22002f 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
@@ -380,7 +380,8 @@ static int smu7_populate_single_firmware_entry(struct pp_smumgr *smumgr,
 		entry->num_register_entries = 0;
 	}
 
-	if (fw_type == UCODE_ID_RLC_G)
+	if ((fw_type == UCODE_ID_RLC_G)
+		|| (fw_type == UCODE_ID_CP_MEC))
 		entry->flags = 1;
 	else
 		entry->flags = 0;
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_sched_trace.h b/drivers/gpu/drm/amd/scheduler/gpu_sched_trace.h
index 8bd38102b58e..283a0dc25e84 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_sched_trace.h
+++ b/drivers/gpu/drm/amd/scheduler/gpu_sched_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_GPU_SCHED_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _GPU_SCHED_TRACE_H_
 
diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
index 38cea6fb25a8..a25f6c72f219 100644
--- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
+++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c
@@ -187,7 +187,7 @@ static bool amd_sched_entity_is_ready(struct amd_sched_entity *entity)
 	if (kfifo_is_empty(&entity->job_queue))
 		return false;
 
-	if (ACCESS_ONCE(entity->dependency))
+	if (READ_ONCE(entity->dependency))
 		return false;
 
 	return true;
diff --git a/drivers/gpu/drm/arm/hdlcd_drv.h b/drivers/gpu/drm/arm/hdlcd_drv.h
index e3950a071152..56f34dfff640 100644
--- a/drivers/gpu/drm/arm/hdlcd_drv.h
+++ b/drivers/gpu/drm/arm/hdlcd_drv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ARM HDLCD Controller register definition
  */
diff --git a/drivers/gpu/drm/armada/Makefile b/drivers/gpu/drm/armada/Makefile
index 64c0b4546fb2..1ab4cf863bf7 100644
--- a/drivers/gpu/drm/armada/Makefile
+++ b/drivers/gpu/drm/armada/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 armada-y	:= armada_crtc.o armada_drv.o armada_fb.o armada_fbdev.o \
 		   armada_gem.o armada_overlay.o armada_trace.o
 armada-y	+= armada_510.o
diff --git a/drivers/gpu/drm/armada/armada_trace.c b/drivers/gpu/drm/armada/armada_trace.c
index 068b336ba75f..c64cce325cdf 100644
--- a/drivers/gpu/drm/armada/armada_trace.c
+++ b/drivers/gpu/drm/armada/armada_trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef __CHECKER__
 #define CREATE_TRACE_POINTS
 #include "armada_trace.h"
diff --git a/drivers/gpu/drm/armada/armada_trace.h b/drivers/gpu/drm/armada/armada_trace.h
index dc0cba70fd1a..1e9f55fc8735 100644
--- a/drivers/gpu/drm/armada/armada_trace.h
+++ b/drivers/gpu/drm/armada/armada_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(ARMADA_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define ARMADA_TRACE_H
 
diff --git a/drivers/gpu/drm/ast/ast_dp501.c b/drivers/gpu/drm/ast/ast_dp501.c
index 749646ae365f..4c7375b45281 100644
--- a/drivers/gpu/drm/ast/ast_dp501.c
+++ b/drivers/gpu/drm/ast/ast_dp501.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/firmware.h>
 #include <drm/drmP.h>
diff --git a/drivers/gpu/drm/ast/ast_dram_tables.h b/drivers/gpu/drm/ast/ast_dram_tables.h
index 1d9c4e75d303..1e9ac9d6d26c 100644
--- a/drivers/gpu/drm/ast/ast_dram_tables.h
+++ b/drivers/gpu/drm/ast/ast_dram_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AST_DRAM_TABLES_H
 #define AST_DRAM_TABLES_H
 
diff --git a/drivers/gpu/drm/atmel-hlcdc/Makefile b/drivers/gpu/drm/atmel-hlcdc/Makefile
index bb5f8507a8ce..49dc89f36b73 100644
--- a/drivers/gpu/drm/atmel-hlcdc/Makefile
+++ b/drivers/gpu/drm/atmel-hlcdc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 atmel-hlcdc-dc-y := atmel_hlcdc_crtc.o \
 		atmel_hlcdc_dc.o \
 		atmel_hlcdc_output.o \
diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index 76c490c3cdbc..375bf92cd04f 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/io.h>
 #include <linux/console.h>
 
diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
index defcf1e7ca1c..60dab87e4783 100644
--- a/drivers/gpu/drm/bridge/Makefile
+++ b/drivers/gpu/drm/bridge/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DRM_ANALOGIX_ANX78XX) += analogix-anx78xx.o
 obj-$(CONFIG_DRM_DUMB_VGA_DAC) += dumb-vga-dac.o
 obj-$(CONFIG_DRM_LVDS_ENCODER) += lvds-encoder.o
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
index fd1f745c6073..63b5756f463b 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DW_HDMI_AUDIO_H
 #define DW_HDMI_AUDIO_H
 
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 4e53aae9a1fb..0028591f3f95 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -2960,6 +2960,7 @@ out:
 		drm_modeset_backoff(&ctx);
 	}
 
+	drm_atomic_state_put(state);
 	drm_modeset_drop_locks(&ctx);
 	drm_modeset_acquire_fini(&ctx);
 
diff --git a/drivers/gpu/drm/drm_blend.c b/drivers/gpu/drm/drm_blend.c
index db6aeec50b82..2e5e089dd912 100644
--- a/drivers/gpu/drm/drm_blend.c
+++ b/drivers/gpu/drm/drm_blend.c
@@ -319,7 +319,7 @@ static int drm_atomic_helper_crtc_normalize_zpos(struct drm_crtc *crtc,
 	DRM_DEBUG_ATOMIC("[CRTC:%d:%s] calculating normalized zpos values\n",
 			 crtc->base.id, crtc->name);
 
-	states = kmalloc_array(total_planes, sizeof(*states), GFP_TEMPORARY);
+	states = kmalloc_array(total_planes, sizeof(*states), GFP_KERNEL);
 	if (!states)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/drm_dp_dual_mode_helper.c b/drivers/gpu/drm/drm_dp_dual_mode_helper.c
index 80e62f669321..0ef9011a1856 100644
--- a/drivers/gpu/drm/drm_dp_dual_mode_helper.c
+++ b/drivers/gpu/drm/drm_dp_dual_mode_helper.c
@@ -111,7 +111,7 @@ ssize_t drm_dp_dual_mode_write(struct i2c_adapter *adapter,
 	void *data;
 	int ret;
 
-	data = kmalloc(msg.len, GFP_TEMPORARY);
+	data = kmalloc(msg.len, GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/drm_scdc_helper.c b/drivers/gpu/drm/drm_scdc_helper.c
index 7d1b0f011d33..935653eb3616 100644
--- a/drivers/gpu/drm/drm_scdc_helper.c
+++ b/drivers/gpu/drm/drm_scdc_helper.c
@@ -102,7 +102,7 @@ ssize_t drm_scdc_write(struct i2c_adapter *adapter, u8 offset,
 	void *data;
 	int err;
 
-	data = kmalloc(1 + size, GFP_TEMPORARY);
+	data = kmalloc(1 + size, GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/drm_trace.h b/drivers/gpu/drm/drm_trace.h
index 14c5a777682e..a8370775ed50 100644
--- a/drivers/gpu/drm/drm_trace.h
+++ b/drivers/gpu/drm/drm_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_DRM_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
 #define _DRM_TRACE_H_
 
diff --git a/drivers/gpu/drm/etnaviv/Makefile b/drivers/gpu/drm/etnaviv/Makefile
index 4f76c992043f..ab3f551831d7 100644
--- a/drivers/gpu/drm/etnaviv/Makefile
+++ b/drivers/gpu/drm/etnaviv/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 etnaviv-y := \
 	etnaviv_buffer.o \
 	etnaviv_cmd_parser.o \
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
index 5a634594a6ce..57881167ccd2 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c
@@ -551,12 +551,15 @@ static const struct etnaviv_gem_ops etnaviv_gem_shmem_ops = {
 void etnaviv_gem_free_object(struct drm_gem_object *obj)
 {
 	struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
+	struct etnaviv_drm_private *priv = obj->dev->dev_private;
 	struct etnaviv_vram_mapping *mapping, *tmp;
 
 	/* object should not be active */
 	WARN_ON(is_active(etnaviv_obj));
 
+	mutex_lock(&priv->gem_lock);
 	list_del(&etnaviv_obj->gem_node);
+	mutex_unlock(&priv->gem_lock);
 
 	list_for_each_entry_safe(mapping, tmp, &etnaviv_obj->vram_list,
 				 obj_node) {
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
index a7ff2e4c00d2..46dfe0737f43 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c
@@ -37,7 +37,7 @@ static struct etnaviv_gem_submit *submit_create(struct drm_device *dev,
 	struct etnaviv_gem_submit *submit;
 	size_t sz = size_vstruct(nr, sizeof(submit->bos[0]), sizeof(*submit));
 
-	submit = kmalloc(sz, GFP_TEMPORARY | __GFP_NOWARN | __GFP_NORETRY);
+	submit = kmalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY);
 	if (submit) {
 		submit->dev = dev;
 		submit->gpu = gpu;
@@ -445,8 +445,10 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 	cmdbuf->user_size = ALIGN(args->stream_size, 8);
 
 	ret = etnaviv_gpu_submit(gpu, submit, cmdbuf);
-	if (ret == 0)
-		cmdbuf = NULL;
+	if (ret)
+		goto out;
+
+	cmdbuf = NULL;
 
 	if (args->flags & ETNA_SUBMIT_FENCE_FD_OUT) {
 		/*
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
index fc9a6a83dfc7..4b152e0d31a6 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
@@ -975,9 +975,9 @@ static void hangcheck_timer_reset(struct etnaviv_gpu *gpu)
 		  round_jiffies_up(jiffies + DRM_ETNAVIV_HANGCHECK_JIFFIES));
 }
 
-static void hangcheck_handler(unsigned long data)
+static void hangcheck_handler(struct timer_list *t)
 {
-	struct etnaviv_gpu *gpu = (struct etnaviv_gpu *)data;
+	struct etnaviv_gpu *gpu = from_timer(gpu, t, hangcheck_timer);
 	u32 fence = gpu->completed_fence;
 	bool progress = false;
 
@@ -1648,8 +1648,7 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master,
 	INIT_WORK(&gpu->recover_work, recover_worker);
 	init_waitqueue_head(&gpu->fence_event);
 
-	setup_deferrable_timer(&gpu->hangcheck_timer, hangcheck_handler,
-			       (unsigned long)gpu);
+	timer_setup(&gpu->hangcheck_timer, hangcheck_handler, TIMER_DEFERRABLE);
 
 	priv->gpu[priv->num_gpus++] = gpu;
 
diff --git a/drivers/gpu/drm/etnaviv/state.xml.h b/drivers/gpu/drm/etnaviv/state.xml.h
index 368218304566..c27c1484cfa9 100644
--- a/drivers/gpu/drm/etnaviv/state.xml.h
+++ b/drivers/gpu/drm/etnaviv/state.xml.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef STATE_XML
 #define STATE_XML
 
diff --git a/drivers/gpu/drm/etnaviv/state_3d.xml.h b/drivers/gpu/drm/etnaviv/state_3d.xml.h
index d7146fd13943..73a97d35c51b 100644
--- a/drivers/gpu/drm/etnaviv/state_3d.xml.h
+++ b/drivers/gpu/drm/etnaviv/state_3d.xml.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef STATE_3D_XML
 #define STATE_3D_XML
 
diff --git a/drivers/gpu/drm/etnaviv/state_hi.xml.h b/drivers/gpu/drm/etnaviv/state_hi.xml.h
index 43c73e2ed34f..60808daf7e8d 100644
--- a/drivers/gpu/drm/etnaviv/state_hi.xml.h
+++ b/drivers/gpu/drm/etnaviv/state_hi.xml.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef STATE_HI_XML
 #define STATE_HI_XML
 
diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
index f663490e949d..bdf4212dde7b 100644
--- a/drivers/gpu/drm/exynos/Makefile
+++ b/drivers/gpu/drm/exynos/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
index 730b8d9db187..6be5b53c3b27 100644
--- a/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
+++ b/drivers/gpu/drm/exynos/exynos5433_drm_decon.c
@@ -14,6 +14,7 @@
 #include <linux/clk.h>
 #include <linux/component.h>
 #include <linux/iopoll.h>
+#include <linux/irq.h>
 #include <linux/mfd/syscon.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index b1f7299600f0..82b72425a42f 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -168,23 +168,21 @@ static struct drm_driver exynos_drm_driver = {
 static int exynos_drm_suspend(struct device *dev)
 {
 	struct drm_device *drm_dev = dev_get_drvdata(dev);
-	struct drm_connector *connector;
-	struct drm_connector_list_iter conn_iter;
+	struct exynos_drm_private *private;
 
 	if (pm_runtime_suspended(dev) || !drm_dev)
 		return 0;
 
-	drm_connector_list_iter_begin(drm_dev, &conn_iter);
-	drm_for_each_connector_iter(connector, &conn_iter) {
-		int old_dpms = connector->dpms;
-
-		if (connector->funcs->dpms)
-			connector->funcs->dpms(connector, DRM_MODE_DPMS_OFF);
+	private = drm_dev->dev_private;
 
-		/* Set the old mode back to the connector for resume */
-		connector->dpms = old_dpms;
+	drm_kms_helper_poll_disable(drm_dev);
+	exynos_drm_fbdev_suspend(drm_dev);
+	private->suspend_state = drm_atomic_helper_suspend(drm_dev);
+	if (IS_ERR(private->suspend_state)) {
+		exynos_drm_fbdev_resume(drm_dev);
+		drm_kms_helper_poll_enable(drm_dev);
+		return PTR_ERR(private->suspend_state);
 	}
-	drm_connector_list_iter_end(&conn_iter);
 
 	return 0;
 }
@@ -192,22 +190,15 @@ static int exynos_drm_suspend(struct device *dev)
 static int exynos_drm_resume(struct device *dev)
 {
 	struct drm_device *drm_dev = dev_get_drvdata(dev);
-	struct drm_connector *connector;
-	struct drm_connector_list_iter conn_iter;
+	struct exynos_drm_private *private;
 
 	if (pm_runtime_suspended(dev) || !drm_dev)
 		return 0;
 
-	drm_connector_list_iter_begin(drm_dev, &conn_iter);
-	drm_for_each_connector_iter(connector, &conn_iter) {
-		if (connector->funcs->dpms) {
-			int dpms = connector->dpms;
-
-			connector->dpms = DRM_MODE_DPMS_OFF;
-			connector->funcs->dpms(connector, dpms);
-		}
-	}
-	drm_connector_list_iter_end(&conn_iter);
+	private = drm_dev->dev_private;
+	drm_atomic_helper_resume(drm_dev, private->suspend_state);
+	exynos_drm_fbdev_resume(drm_dev);
+	drm_kms_helper_poll_enable(drm_dev);
 
 	return 0;
 }
@@ -439,6 +430,7 @@ static void exynos_drm_unbind(struct device *dev)
 
 	kfree(drm->dev_private);
 	drm->dev_private = NULL;
+	dev_set_drvdata(dev, NULL);
 
 	drm_dev_unref(drm);
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index cf131c2aa23e..f8bae4cb4823 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -202,6 +202,7 @@ struct drm_exynos_file_private {
  */
 struct exynos_drm_private {
 	struct drm_fb_helper *fb_helper;
+	struct drm_atomic_state *suspend_state;
 
 	struct device *dma_dev;
 	void *mapping;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index c3a068409b48..dfb66ecf417b 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -18,6 +18,8 @@
 #include <drm/drm_crtc_helper.h>
 #include <drm/exynos_drm.h>
 
+#include <linux/console.h>
+
 #include "exynos_drm_drv.h"
 #include "exynos_drm_fb.h"
 #include "exynos_drm_fbdev.h"
@@ -285,3 +287,21 @@ void exynos_drm_output_poll_changed(struct drm_device *dev)
 
 	drm_fb_helper_hotplug_event(fb_helper);
 }
+
+void exynos_drm_fbdev_suspend(struct drm_device *dev)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+
+	console_lock();
+	drm_fb_helper_set_suspend(private->fb_helper, 1);
+	console_unlock();
+}
+
+void exynos_drm_fbdev_resume(struct drm_device *dev)
+{
+	struct exynos_drm_private *private = dev->dev_private;
+
+	console_lock();
+	drm_fb_helper_set_suspend(private->fb_helper, 0);
+	console_unlock();
+}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
index 330eef87f718..645d1bb7f665 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.h
@@ -21,6 +21,8 @@ int exynos_drm_fbdev_init(struct drm_device *dev);
 void exynos_drm_fbdev_fini(struct drm_device *dev);
 void exynos_drm_fbdev_restore_mode(struct drm_device *dev);
 void exynos_drm_output_poll_changed(struct drm_device *dev);
+void exynos_drm_fbdev_suspend(struct drm_device *drm);
+void exynos_drm_fbdev_resume(struct drm_device *drm);
 
 #else
 
@@ -39,6 +41,14 @@ static inline void exynos_drm_fbdev_restore_mode(struct drm_device *dev)
 
 #define exynos_drm_output_poll_changed (NULL)
 
+static inline void exynos_drm_fbdev_suspend(struct drm_device *drm)
+{
+}
+
+static inline void exynos_drm_fbdev_resume(struct drm_device *drm)
+{
+}
+
 #endif
 
 #endif
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index 214fa5e51963..0109ff40b1db 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -944,22 +944,27 @@ static bool hdmi_mode_fixup(struct drm_encoder *encoder,
 	struct drm_device *dev = encoder->dev;
 	struct drm_connector *connector;
 	struct drm_display_mode *m;
+	struct drm_connector_list_iter conn_iter;
 	int mode_ok;
 
 	drm_mode_set_crtcinfo(adjusted_mode, 0);
 
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	drm_for_each_connector_iter(connector, &conn_iter) {
 		if (connector->encoder == encoder)
 			break;
 	}
+	if (connector)
+		drm_connector_get(connector);
+	drm_connector_list_iter_end(&conn_iter);
 
-	if (connector->encoder != encoder)
+	if (!connector)
 		return true;
 
 	mode_ok = hdmi_mode_valid(connector, adjusted_mode);
 
 	if (mode_ok == MODE_OK)
-		return true;
+		goto cleanup;
 
 	/*
 	 * Find the most suitable mode and copy it to adjusted_mode.
@@ -979,6 +984,9 @@ static bool hdmi_mode_fixup(struct drm_encoder *encoder,
 		}
 	}
 
+cleanup:
+	drm_connector_put(connector);
+
 	return true;
 }
 
diff --git a/drivers/gpu/drm/fsl-dcu/Makefile b/drivers/gpu/drm/fsl-dcu/Makefile
index aca34f656bea..b55c4482d0f9 100644
--- a/drivers/gpu/drm/fsl-dcu/Makefile
+++ b/drivers/gpu/drm/fsl-dcu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 fsl-dcu-drm-y := fsl_dcu_drm_drv.o \
 		 fsl_dcu_drm_kms.o \
 		 fsl_dcu_drm_rgb.o \
diff --git a/drivers/gpu/drm/gma500/Makefile b/drivers/gpu/drm/gma500/Makefile
index c1c8dc18aa53..c8f2c89be99d 100644
--- a/drivers/gpu/drm/gma500/Makefile
+++ b/drivers/gpu/drm/gma500/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 #	KMS driver for the GMA500
 #
diff --git a/drivers/gpu/drm/gma500/psb_lid.c b/drivers/gpu/drm/gma500/psb_lid.c
index 1d2ebb5e530f..be6dda58fcae 100644
--- a/drivers/gpu/drm/gma500/psb_lid.c
+++ b/drivers/gpu/drm/gma500/psb_lid.c
@@ -23,9 +23,9 @@
 #include "psb_intel_reg.h"
 #include <linux/spinlock.h>
 
-static void psb_lid_timer_func(unsigned long data)
+static void psb_lid_timer_func(struct timer_list *t)
 {
-	struct drm_psb_private * dev_priv = (struct drm_psb_private *)data;
+	struct drm_psb_private *dev_priv = from_timer(dev_priv, t, lid_timer);
 	struct drm_device *dev = (struct drm_device *)dev_priv->dev;
 	struct timer_list *lid_timer = &dev_priv->lid_timer;
 	unsigned long irq_flags;
@@ -77,10 +77,8 @@ void psb_lid_timer_init(struct drm_psb_private *dev_priv)
 	spin_lock_init(&dev_priv->lid_lock);
 	spin_lock_irqsave(&dev_priv->lid_lock, irq_flags);
 
-	init_timer(lid_timer);
+	timer_setup(lid_timer, psb_lid_timer_func, 0);
 
-	lid_timer->data = (unsigned long)dev_priv;
-	lid_timer->function = psb_lid_timer_func;
 	lid_timer->expires = jiffies + PSB_LID_DELAY;
 
 	add_timer(lid_timer);
diff --git a/drivers/gpu/drm/i2c/Makefile b/drivers/gpu/drm/i2c/Makefile
index a77acfc1852e..b20100c18ffb 100644
--- a/drivers/gpu/drm/i2c/Makefile
+++ b/drivers/gpu/drm/i2c/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ch7006-y := ch7006_drv.o ch7006_mode.o
 obj-$(CONFIG_DRM_I2C_CH7006) += ch7006.o
 
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 892f52b53060..2e034efc4d6d 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/i915/gvt/Makefile b/drivers/gpu/drm/i915/gvt/Makefile
index f5486cb94818..2641ba510a61 100644
--- a/drivers/gpu/drm/i915/gvt/Makefile
+++ b/drivers/gpu/drm/i915/gvt/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 GVT_DIR := gvt
 GVT_SOURCE := gvt.o aperture_gm.o handlers.o vgpu.o trace_points.o firmware.o \
 	interrupt.o gtt.o cfg_space.o opregion.o mmio.o display.o edid.o \
diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c
index 40af17ec6312..ff3154fe6588 100644
--- a/drivers/gpu/drm/i915/gvt/cfg_space.c
+++ b/drivers/gpu/drm/i915/gvt/cfg_space.c
@@ -197,78 +197,65 @@ static int emulate_pci_command_write(struct intel_vgpu *vgpu,
 static int emulate_pci_bar_write(struct intel_vgpu *vgpu, unsigned int offset,
 	void *p_data, unsigned int bytes)
 {
-	unsigned int bar_index =
-		(rounddown(offset, 8) % PCI_BASE_ADDRESS_0) / 8;
 	u32 new = *(u32 *)(p_data);
 	bool lo = IS_ALIGNED(offset, 8);
 	u64 size;
 	int ret = 0;
 	bool mmio_enabled =
 		vgpu_cfg_space(vgpu)[PCI_COMMAND] & PCI_COMMAND_MEMORY;
+	struct intel_vgpu_pci_bar *bars = vgpu->cfg_space.bar;
 
-	if (WARN_ON(bar_index >= INTEL_GVT_PCI_BAR_MAX))
-		return -EINVAL;
-
+	/*
+	 * Power-up software can determine how much address
+	 * space the device requires by writing a value of
+	 * all 1's to the register and then reading the value
+	 * back. The device will return 0's in all don't-care
+	 * address bits.
+	 */
 	if (new == 0xffffffff) {
-		/*
-		 * Power-up software can determine how much address
-		 * space the device requires by writing a value of
-		 * all 1's to the register and then reading the value
-		 * back. The device will return 0's in all don't-care
-		 * address bits.
-		 */
-		size = vgpu->cfg_space.bar[bar_index].size;
-		if (lo) {
-			new = rounddown(new, size);
-		} else {
-			u32 val = vgpu_cfg_space(vgpu)[rounddown(offset, 8)];
-			/* for 32bit mode bar it returns all-0 in upper 32
-			 * bit, for 64bit mode bar it will calculate the
-			 * size with lower 32bit and return the corresponding
-			 * value
+		switch (offset) {
+		case PCI_BASE_ADDRESS_0:
+		case PCI_BASE_ADDRESS_1:
+			size = ~(bars[INTEL_GVT_PCI_BAR_GTTMMIO].size -1);
+			intel_vgpu_write_pci_bar(vgpu, offset,
+						size >> (lo ? 0 : 32), lo);
+			/*
+			 * Untrap the BAR, since guest hasn't configured a
+			 * valid GPA
 			 */
-			if (val & PCI_BASE_ADDRESS_MEM_TYPE_64)
-				new &= (~(size-1)) >> 32;
-			else
-				new = 0;
-		}
-		/*
-		 * Unmapp & untrap the BAR, since guest hasn't configured a
-		 * valid GPA
-		 */
-		switch (bar_index) {
-		case INTEL_GVT_PCI_BAR_GTTMMIO:
 			ret = trap_gttmmio(vgpu, false);
 			break;
-		case INTEL_GVT_PCI_BAR_APERTURE:
+		case PCI_BASE_ADDRESS_2:
+		case PCI_BASE_ADDRESS_3:
+			size = ~(bars[INTEL_GVT_PCI_BAR_APERTURE].size -1);
+			intel_vgpu_write_pci_bar(vgpu, offset,
+						size >> (lo ? 0 : 32), lo);
 			ret = map_aperture(vgpu, false);
 			break;
+		default:
+			/* Unimplemented BARs */
+			intel_vgpu_write_pci_bar(vgpu, offset, 0x0, false);
 		}
-		intel_vgpu_write_pci_bar(vgpu, offset, new, lo);
 	} else {
-		/*
-		 * Unmapp & untrap the old BAR first, since guest has
-		 * re-configured the BAR
-		 */
-		switch (bar_index) {
-		case INTEL_GVT_PCI_BAR_GTTMMIO:
-			ret = trap_gttmmio(vgpu, false);
+		switch (offset) {
+		case PCI_BASE_ADDRESS_0:
+		case PCI_BASE_ADDRESS_1:
+			/*
+			 * Untrap the old BAR first, since guest has
+			 * re-configured the BAR
+			 */
+			trap_gttmmio(vgpu, false);
+			intel_vgpu_write_pci_bar(vgpu, offset, new, lo);
+			ret = trap_gttmmio(vgpu, mmio_enabled);
 			break;
-		case INTEL_GVT_PCI_BAR_APERTURE:
-			ret = map_aperture(vgpu, false);
+		case PCI_BASE_ADDRESS_2:
+		case PCI_BASE_ADDRESS_3:
+			map_aperture(vgpu, false);
+			intel_vgpu_write_pci_bar(vgpu, offset, new, lo);
+			ret = map_aperture(vgpu, mmio_enabled);
 			break;
-		}
-		intel_vgpu_write_pci_bar(vgpu, offset, new, lo);
-		/* Track the new BAR */
-		if (mmio_enabled) {
-			switch (bar_index) {
-			case INTEL_GVT_PCI_BAR_GTTMMIO:
-				ret = trap_gttmmio(vgpu, true);
-				break;
-			case INTEL_GVT_PCI_BAR_APERTURE:
-				ret = map_aperture(vgpu, true);
-				break;
-			}
+		default:
+			intel_vgpu_write_pci_bar(vgpu, offset, new, lo);
 		}
 	}
 	return ret;
@@ -299,10 +286,7 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset,
 	}
 
 	switch (rounddown(offset, 4)) {
-	case PCI_BASE_ADDRESS_0:
-	case PCI_BASE_ADDRESS_1:
-	case PCI_BASE_ADDRESS_2:
-	case PCI_BASE_ADDRESS_3:
+	case PCI_BASE_ADDRESS_0 ... PCI_BASE_ADDRESS_5:
 		if (WARN_ON(!IS_ALIGNED(offset, 4)))
 			return -EINVAL;
 		return emulate_pci_bar_write(vgpu, offset, p_data, bytes);
@@ -344,7 +328,6 @@ void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
 	struct intel_gvt *gvt = vgpu->gvt;
 	const struct intel_gvt_device_info *info = &gvt->device_info;
 	u16 *gmch_ctl;
-	int i;
 
 	memcpy(vgpu_cfg_space(vgpu), gvt->firmware.cfg_space,
 	       info->cfg_space_size);
@@ -371,13 +354,13 @@ void intel_vgpu_init_cfg_space(struct intel_vgpu *vgpu,
 	 */
 	memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_1, 0, 4);
 	memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_3, 0, 4);
+	memset(vgpu_cfg_space(vgpu) + PCI_BASE_ADDRESS_4, 0, 8);
 	memset(vgpu_cfg_space(vgpu) + INTEL_GVT_PCI_OPREGION, 0, 4);
 
-	for (i = 0; i < INTEL_GVT_MAX_BAR_NUM; i++) {
-		vgpu->cfg_space.bar[i].size = pci_resource_len(
-					      gvt->dev_priv->drm.pdev, i * 2);
-		vgpu->cfg_space.bar[i].tracked = false;
-	}
+	vgpu->cfg_space.bar[INTEL_GVT_PCI_BAR_GTTMMIO].size =
+				pci_resource_len(gvt->dev_priv->drm.pdev, 0);
+	vgpu->cfg_space.bar[INTEL_GVT_PCI_BAR_APERTURE].size =
+				pci_resource_len(gvt->dev_priv->drm.pdev, 2);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c
index 21c36e256884..d4726a3358a4 100644
--- a/drivers/gpu/drm/i915/gvt/cmd_parser.c
+++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c
@@ -2723,6 +2723,9 @@ static int combine_wa_ctx(struct intel_shadow_wa_ctx *wa_ctx)
 	uint32_t per_ctx_start[CACHELINE_DWORDS] = {0};
 	unsigned char *bb_start_sva;
 
+	if (!wa_ctx->per_ctx.valid)
+		return 0;
+
 	per_ctx_start[0] = 0x18800001;
 	per_ctx_start[1] = wa_ctx->per_ctx.guest_gma;
 
diff --git a/drivers/gpu/drm/i915/gvt/execlist.c b/drivers/gpu/drm/i915/gvt/execlist.c
index 91b4300f3b39..e5320b4eb698 100644
--- a/drivers/gpu/drm/i915/gvt/execlist.c
+++ b/drivers/gpu/drm/i915/gvt/execlist.c
@@ -701,8 +701,7 @@ static int submit_context(struct intel_vgpu *vgpu, int ring_id,
 			CACHELINE_BYTES;
 		workload->wa_ctx.per_ctx.guest_gma =
 			per_ctx & PER_CTX_ADDR_MASK;
-
-		WARN_ON(workload->wa_ctx.indirect_ctx.size && !(per_ctx & 0x1));
+		workload->wa_ctx.per_ctx.valid = per_ctx & 1;
 	}
 
 	if (emulate_schedule_in)
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c
index 2294466dd415..a5bed2e71b92 100644
--- a/drivers/gpu/drm/i915/gvt/handlers.c
+++ b/drivers/gpu/drm/i915/gvt/handlers.c
@@ -1429,18 +1429,7 @@ static int skl_lcpll_write(struct intel_vgpu *vgpu, unsigned int offset,
 	return 0;
 }
 
-static int ring_timestamp_mmio_read(struct intel_vgpu *vgpu,
-		unsigned int offset, void *p_data, unsigned int bytes)
-{
-	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
-
-	mmio_hw_access_pre(dev_priv);
-	vgpu_vreg(vgpu, offset) = I915_READ(_MMIO(offset));
-	mmio_hw_access_post(dev_priv);
-	return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes);
-}
-
-static int instdone_mmio_read(struct intel_vgpu *vgpu,
+static int mmio_read_from_hw(struct intel_vgpu *vgpu,
 		unsigned int offset, void *p_data, unsigned int bytes)
 {
 	struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv;
@@ -1589,6 +1578,8 @@ static int ring_reset_ctl_write(struct intel_vgpu *vgpu,
 	MMIO_F(prefix(BLT_RING_BASE), s, f, am, rm, d, r, w); \
 	MMIO_F(prefix(GEN6_BSD_RING_BASE), s, f, am, rm, d, r, w); \
 	MMIO_F(prefix(VEBOX_RING_BASE), s, f, am, rm, d, r, w); \
+	if (HAS_BSD2(dev_priv)) \
+		MMIO_F(prefix(GEN8_BSD2_RING_BASE), s, f, am, rm, d, r, w); \
 } while (0)
 
 #define MMIO_RING_D(prefix, d) \
@@ -1635,10 +1626,9 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 #undef RING_REG
 
 #define RING_REG(base) (base + 0x6c)
-	MMIO_RING_DFH(RING_REG, D_ALL, 0, instdone_mmio_read, NULL);
-	MMIO_DH(RING_REG(GEN8_BSD2_RING_BASE), D_ALL, instdone_mmio_read, NULL);
+	MMIO_RING_DFH(RING_REG, D_ALL, 0, mmio_read_from_hw, NULL);
 #undef RING_REG
-	MMIO_DH(GEN7_SC_INSTDONE, D_BDW_PLUS, instdone_mmio_read, NULL);
+	MMIO_DH(GEN7_SC_INSTDONE, D_BDW_PLUS, mmio_read_from_hw, NULL);
 
 	MMIO_GM_RDR(0x2148, D_ALL, NULL, NULL);
 	MMIO_GM_RDR(CCID, D_ALL, NULL, NULL);
@@ -1648,7 +1638,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 	MMIO_RING_DFH(RING_TAIL, D_ALL, F_CMD_ACCESS, NULL, NULL);
 	MMIO_RING_DFH(RING_HEAD, D_ALL, F_CMD_ACCESS, NULL, NULL);
 	MMIO_RING_DFH(RING_CTL, D_ALL, F_CMD_ACCESS, NULL, NULL);
-	MMIO_RING_DFH(RING_ACTHD, D_ALL, F_CMD_ACCESS, NULL, NULL);
+	MMIO_RING_DFH(RING_ACTHD, D_ALL, F_CMD_ACCESS, mmio_read_from_hw, NULL);
 	MMIO_RING_GM_RDR(RING_START, D_ALL, NULL, NULL);
 
 	/* RING MODE */
@@ -1662,9 +1652,9 @@ static int init_generic_mmio_info(struct intel_gvt *gvt)
 	MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
 			NULL, NULL);
 	MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS,
-			ring_timestamp_mmio_read, NULL);
+			mmio_read_from_hw, NULL);
 	MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS,
-			ring_timestamp_mmio_read, NULL);
+			mmio_read_from_hw, NULL);
 
 	MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
 	MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK | F_CMD_ACCESS,
@@ -2411,9 +2401,6 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt)
 	struct drm_i915_private *dev_priv = gvt->dev_priv;
 	int ret;
 
-	MMIO_DFH(RING_IMR(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, NULL,
-			intel_vgpu_reg_imr_handler);
-
 	MMIO_DH(GEN8_GT_IMR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler);
 	MMIO_DH(GEN8_GT_IER(0), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler);
 	MMIO_DH(GEN8_GT_IIR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler);
@@ -2476,68 +2463,34 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt)
 	MMIO_DH(GEN8_MASTER_IRQ, D_BDW_PLUS, NULL,
 		intel_vgpu_reg_master_irq_handler);
 
-	MMIO_DFH(RING_HWSTAM(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
-		F_CMD_ACCESS, NULL, NULL);
-	MMIO_DFH(0x1c134, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
-
-	MMIO_DFH(RING_TAIL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
-		NULL, NULL);
-	MMIO_DFH(RING_HEAD(GEN8_BSD2_RING_BASE),  D_BDW_PLUS,
-		F_CMD_ACCESS, NULL, NULL);
-	MMIO_GM_RDR(RING_START(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL);
-	MMIO_DFH(RING_CTL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
-		NULL, NULL);
-	MMIO_DFH(RING_ACTHD(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
-		F_CMD_ACCESS, NULL, NULL);
-	MMIO_DFH(RING_ACTHD_UDW(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
-		F_CMD_ACCESS, NULL, NULL);
-	MMIO_DFH(0x1c29c, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL,
-		ring_mode_mmio_write);
-	MMIO_DFH(RING_MI_MODE(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
-		F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
-	MMIO_DFH(RING_INSTPM(GEN8_BSD2_RING_BASE), D_BDW_PLUS,
-		F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
-	MMIO_DFH(RING_TIMESTAMP(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
-			ring_timestamp_mmio_read, NULL);
-
-	MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
+	MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, F_CMD_ACCESS,
+		mmio_read_from_hw, NULL);
 
 #define RING_REG(base) (base + 0xd0)
 	MMIO_RING_F(RING_REG, 4, F_RO, 0,
 		~_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET), D_BDW_PLUS, NULL,
 		ring_reset_ctl_write);
-	MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO, 0,
-		~_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET), D_BDW_PLUS, NULL,
-		ring_reset_ctl_write);
 #undef RING_REG
 
 #define RING_REG(base) (base + 0x230)
 	MMIO_RING_DFH(RING_REG, D_BDW_PLUS, 0, NULL, elsp_mmio_write);
-	MMIO_DH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, elsp_mmio_write);
 #undef RING_REG
 
 #define RING_REG(base) (base + 0x234)
 	MMIO_RING_F(RING_REG, 8, F_RO | F_CMD_ACCESS, 0, ~0, D_BDW_PLUS,
 		NULL, NULL);
-	MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO | F_CMD_ACCESS, 0,
-		~0LL, D_BDW_PLUS, NULL, NULL);
 #undef RING_REG
 
 #define RING_REG(base) (base + 0x244)
 	MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL);
-	MMIO_DFH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS,
-		NULL, NULL);
 #undef RING_REG
 
 #define RING_REG(base) (base + 0x370)
 	MMIO_RING_F(RING_REG, 48, F_RO, 0, ~0, D_BDW_PLUS, NULL, NULL);
-	MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 48, F_RO, 0, ~0, D_BDW_PLUS,
-			NULL, NULL);
 #undef RING_REG
 
 #define RING_REG(base) (base + 0x3a0)
 	MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_MODE_MASK, NULL, NULL);
-	MMIO_DFH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_MODE_MASK, NULL, NULL);
 #undef RING_REG
 
 	MMIO_D(PIPEMISC(PIPE_A), D_BDW_PLUS);
@@ -2557,11 +2510,9 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt)
 
 #define RING_REG(base) (base + 0x270)
 	MMIO_RING_F(RING_REG, 32, 0, 0, 0, D_BDW_PLUS, NULL, NULL);
-	MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 32, 0, 0, 0, D_BDW_PLUS, NULL, NULL);
 #undef RING_REG
 
 	MMIO_RING_GM_RDR(RING_HWS_PGA, D_BDW_PLUS, NULL, NULL);
-	MMIO_GM_RDR(RING_HWS_PGA(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL);
 
 	MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL);
 
@@ -2849,7 +2800,6 @@ static int init_skl_mmio_info(struct intel_gvt *gvt)
 	MMIO_D(0x65f08, D_SKL | D_KBL);
 	MMIO_D(0x320f0, D_SKL | D_KBL);
 
-	MMIO_DFH(_REG_VCS2_EXCC, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL);
 	MMIO_D(0x70034, D_SKL_PLUS);
 	MMIO_D(0x71034, D_SKL_PLUS);
 	MMIO_D(0x72034, D_SKL_PLUS);
diff --git a/drivers/gpu/drm/i915/gvt/reg.h b/drivers/gpu/drm/i915/gvt/reg.h
index fbd023a16f18..7d01c77a0f7a 100644
--- a/drivers/gpu/drm/i915/gvt/reg.h
+++ b/drivers/gpu/drm/i915/gvt/reg.h
@@ -54,9 +54,6 @@
 
 #define VGT_SPRSTRIDE(pipe)	_PIPE(pipe, _SPRA_STRIDE, _PLANE_STRIDE_2_B)
 
-#define _REG_VECS_EXCC		0x1A028
-#define _REG_VCS2_EXCC		0x1c028
-
 #define _REG_701C0(pipe, plane) (0x701c0 + pipe * 0x1000 + (plane - 1) * 0x100)
 #define _REG_701C4(pipe, plane) (0x701c4 + pipe * 0x1000 + (plane - 1) * 0x100)
 
diff --git a/drivers/gpu/drm/i915/gvt/sched_policy.c b/drivers/gpu/drm/i915/gvt/sched_policy.c
index 436377da41ba..03532dfc0cd5 100644
--- a/drivers/gpu/drm/i915/gvt/sched_policy.c
+++ b/drivers/gpu/drm/i915/gvt/sched_policy.c
@@ -308,20 +308,8 @@ static int tbs_sched_init_vgpu(struct intel_vgpu *vgpu)
 
 static void tbs_sched_clean_vgpu(struct intel_vgpu *vgpu)
 {
-	struct intel_gvt_workload_scheduler *scheduler = &vgpu->gvt->scheduler;
-	int ring_id;
-
 	kfree(vgpu->sched_data);
 	vgpu->sched_data = NULL;
-
-	spin_lock_bh(&scheduler->mmio_context_lock);
-	for (ring_id = 0; ring_id < I915_NUM_ENGINES; ring_id++) {
-		if (scheduler->engine_owner[ring_id] == vgpu) {
-			intel_gvt_switch_mmio(vgpu, NULL, ring_id);
-			scheduler->engine_owner[ring_id] = NULL;
-		}
-	}
-	spin_unlock_bh(&scheduler->mmio_context_lock);
 }
 
 static void tbs_sched_start_schedule(struct intel_vgpu *vgpu)
@@ -388,6 +376,7 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
 {
 	struct intel_gvt_workload_scheduler *scheduler =
 		&vgpu->gvt->scheduler;
+	int ring_id;
 
 	gvt_dbg_core("vgpu%d: stop schedule\n", vgpu->id);
 
@@ -401,4 +390,13 @@ void intel_vgpu_stop_schedule(struct intel_vgpu *vgpu)
 		scheduler->need_reschedule = true;
 		scheduler->current_vgpu = NULL;
 	}
+
+	spin_lock_bh(&scheduler->mmio_context_lock);
+	for (ring_id = 0; ring_id < I915_NUM_ENGINES; ring_id++) {
+		if (scheduler->engine_owner[ring_id] == vgpu) {
+			intel_gvt_switch_mmio(vgpu, NULL, ring_id);
+			scheduler->engine_owner[ring_id] = NULL;
+		}
+	}
+	spin_unlock_bh(&scheduler->mmio_context_lock);
 }
diff --git a/drivers/gpu/drm/i915/gvt/scheduler.h b/drivers/gpu/drm/i915/gvt/scheduler.h
index 0d431a968a32..93a49eb0209e 100644
--- a/drivers/gpu/drm/i915/gvt/scheduler.h
+++ b/drivers/gpu/drm/i915/gvt/scheduler.h
@@ -68,6 +68,7 @@ struct shadow_indirect_ctx {
 struct shadow_per_ctx {
 	unsigned long guest_gma;
 	unsigned long shadow_gma;
+	unsigned valid;
 };
 
 struct intel_shadow_wa_ctx {
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 9f45cfeae775..f124de3a0668 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -1304,7 +1304,7 @@ int i915_driver_load(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * becaue the HDA driver may require us to enable the audio power
 	 * domain during system suspend.
 	 */
-	pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
 
 	ret = i915_driver_init_early(dev_priv, ent);
 	if (ret < 0)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 57317715977f..dc1faa49687d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2214,8 +2214,10 @@ static void __i915_gem_object_reset_page_iter(struct drm_i915_gem_object *obj)
 	struct radix_tree_iter iter;
 	void __rcu **slot;
 
+	rcu_read_lock();
 	radix_tree_for_each_slot(slot, &obj->mm.get_page.radix, &iter, 0)
 		radix_tree_delete(&obj->mm.get_page.radix, iter.index);
+	rcu_read_unlock();
 }
 
 void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj,
@@ -2540,7 +2542,7 @@ static void *i915_gem_object_map(const struct drm_i915_gem_object *obj,
 
 	if (n_pages > ARRAY_SIZE(stack_pages)) {
 		/* Too big for stack -- allocate temporary array instead */
-		pages = kvmalloc_array(n_pages, sizeof(*pages), GFP_TEMPORARY);
+		pages = kvmalloc_array(n_pages, sizeof(*pages), GFP_KERNEL);
 		if (!pages)
 			return NULL;
 	}
@@ -2657,6 +2659,9 @@ i915_gem_object_pwrite_gtt(struct drm_i915_gem_object *obj,
 	if (READ_ONCE(obj->mm.pages))
 		return -ENODEV;
 
+	if (obj->mm.madv != I915_MADV_WILLNEED)
+		return -EFAULT;
+
 	/* Before the pages are instantiated the object is treated as being
 	 * in the CPU domain. The pages will be clflushed as required before
 	 * use, and we can freely write into the pages directly. If userspace
@@ -3013,10 +3018,15 @@ void i915_gem_reset_finish(struct drm_i915_private *dev_priv)
 
 static void nop_submit_request(struct drm_i915_gem_request *request)
 {
+	unsigned long flags;
+
 	GEM_BUG_ON(!i915_terminally_wedged(&request->i915->gpu_error));
 	dma_fence_set_error(&request->fence, -EIO);
-	i915_gem_request_submit(request);
+
+	spin_lock_irqsave(&request->engine->timeline->lock, flags);
+	__i915_gem_request_submit(request);
 	intel_engine_init_global_seqno(request->engine, request->global_seqno);
+	spin_unlock_irqrestore(&request->engine->timeline->lock, flags);
 }
 
 static void engine_set_wedged(struct intel_engine_cs *engine)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 58a2a44f88bd..8afd2ce59b8d 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -104,6 +104,7 @@ static void lut_close(struct i915_gem_context *ctx)
 		kmem_cache_free(ctx->i915->luts, lut);
 	}
 
+	rcu_read_lock();
 	radix_tree_for_each_slot(slot, &ctx->handles_vma, &iter, 0) {
 		struct i915_vma *vma = rcu_dereference_raw(*slot);
 		struct drm_i915_gem_object *obj = vma->obj;
@@ -115,6 +116,7 @@ static void lut_close(struct i915_gem_context *ctx)
 
 		__i915_gem_object_release_unless_active(obj);
 	}
+	rcu_read_unlock();
 }
 
 static void i915_gem_context_free(struct i915_gem_context *ctx)
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 4df039ef2ce3..e161d383b526 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -33,21 +33,20 @@
 #include "intel_drv.h"
 #include "i915_trace.h"
 
-static bool ggtt_is_idle(struct drm_i915_private *dev_priv)
+static bool ggtt_is_idle(struct drm_i915_private *i915)
 {
-	struct i915_ggtt *ggtt = &dev_priv->ggtt;
-	struct intel_engine_cs *engine;
-	enum intel_engine_id id;
+       struct intel_engine_cs *engine;
+       enum intel_engine_id id;
 
-	for_each_engine(engine, dev_priv, id) {
-		struct intel_timeline *tl;
+       if (i915->gt.active_requests)
+	       return false;
 
-		tl = &ggtt->base.timeline.engine[engine->id];
-		if (i915_gem_active_isset(&tl->last_request))
-			return false;
-	}
+       for_each_engine(engine, i915, id) {
+	       if (engine->last_retired_context != i915->kernel_context)
+		       return false;
+       }
 
-	return true;
+       return true;
 }
 
 static int ggtt_flush(struct drm_i915_private *i915)
@@ -157,7 +156,8 @@ i915_gem_evict_something(struct i915_address_space *vm,
 				    min_size, alignment, cache_level,
 				    start, end, mode);
 
-	/* Retire before we search the active list. Although we have
+	/*
+	 * Retire before we search the active list. Although we have
 	 * reasonable accuracy in our retirement lists, we may have
 	 * a stray pin (preventing eviction) that can only be resolved by
 	 * retiring.
@@ -182,7 +182,8 @@ search_again:
 		BUG_ON(ret);
 	}
 
-	/* Can we unpin some objects such as idle hw contents,
+	/*
+	 * Can we unpin some objects such as idle hw contents,
 	 * or pending flips? But since only the GGTT has global entries
 	 * such as scanouts, rinbuffers and contexts, we can skip the
 	 * purge when inspecting per-process local address spaces.
@@ -190,19 +191,33 @@ search_again:
 	if (!i915_is_ggtt(vm) || flags & PIN_NONBLOCK)
 		return -ENOSPC;
 
-	if (ggtt_is_idle(dev_priv)) {
-		/* If we still have pending pageflip completions, drop
-		 * back to userspace to give our workqueues time to
-		 * acquire our locks and unpin the old scanouts.
-		 */
-		return intel_has_pending_fb_unpin(dev_priv) ? -EAGAIN : -ENOSPC;
-	}
+	/*
+	 * Not everything in the GGTT is tracked via VMA using
+	 * i915_vma_move_to_active(), otherwise we could evict as required
+	 * with minimal stalling. Instead we are forced to idle the GPU and
+	 * explicitly retire outstanding requests which will then remove
+	 * the pinning for active objects such as contexts and ring,
+	 * enabling us to evict them on the next iteration.
+	 *
+	 * To ensure that all user contexts are evictable, we perform
+	 * a switch to the perma-pinned kernel context. This all also gives
+	 * us a termination condition, when the last retired context is
+	 * the kernel's there is no more we can evict.
+	 */
+	if (!ggtt_is_idle(dev_priv)) {
+		ret = ggtt_flush(dev_priv);
+		if (ret)
+			return ret;
 
-	ret = ggtt_flush(dev_priv);
-	if (ret)
-		return ret;
+		goto search_again;
+	}
 
-	goto search_again;
+	/*
+	 * If we still have pending pageflip completions, drop
+	 * back to userspace to give our workqueues time to
+	 * acquire our locks and unpin the old scanouts.
+	 */
+	return intel_has_pending_fb_unpin(dev_priv) ? -EAGAIN : -ENOSPC;
 
 found:
 	/* drm_mm doesn't allow any other other operations while
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index 50d5e24f91a9..83876a1c8d98 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -293,7 +293,7 @@ static int eb_create(struct i915_execbuffer *eb)
 			 * as possible to perform the allocation and warn
 			 * if it fails.
 			 */
-			flags = GFP_TEMPORARY;
+			flags = GFP_KERNEL;
 			if (size > 1)
 				flags |= __GFP_NORETRY | __GFP_NOWARN;
 
@@ -337,6 +337,10 @@ eb_vma_misplaced(const struct drm_i915_gem_exec_object2 *entry,
 	    (vma->node.start + vma->node.size - 1) >> 32)
 		return true;
 
+	if (flags & __EXEC_OBJECT_NEEDS_MAP &&
+	    !i915_vma_is_map_and_fenceable(vma))
+		return true;
+
 	return false;
 }
 
@@ -1515,7 +1519,7 @@ static int eb_copy_relocations(const struct i915_execbuffer *eb)
 		urelocs = u64_to_user_ptr(eb->exec[i].relocs_ptr);
 		size = nreloc * sizeof(*relocs);
 
-		relocs = kvmalloc_array(size, 1, GFP_TEMPORARY);
+		relocs = kvmalloc_array(size, 1, GFP_KERNEL);
 		if (!relocs) {
 			kvfree(relocs);
 			err = -ENOMEM;
@@ -2077,7 +2081,7 @@ get_fence_array(struct drm_i915_gem_execbuffer2 *args,
 		return ERR_PTR(-EFAULT);
 
 	fences = kvmalloc_array(args->num_cliprects, sizeof(*fences),
-				__GFP_NOWARN | GFP_TEMPORARY);
+				__GFP_NOWARN | GFP_KERNEL);
 	if (!fences)
 		return ERR_PTR(-ENOMEM);
 
@@ -2090,6 +2094,11 @@ get_fence_array(struct drm_i915_gem_execbuffer2 *args,
 			goto err;
 		}
 
+		if (fence.flags & __I915_EXEC_FENCE_UNKNOWN_FLAGS) {
+			err = -EINVAL;
+			goto err;
+		}
+
 		syncobj = drm_syncobj_find(file, fence.handle);
 		if (!syncobj) {
 			DRM_DEBUG("Invalid syncobj handle provided\n");
@@ -2097,6 +2106,9 @@ get_fence_array(struct drm_i915_gem_execbuffer2 *args,
 			goto err;
 		}
 
+		BUILD_BUG_ON(~(ARCH_KMALLOC_MINALIGN - 1) &
+			     ~__I915_EXEC_FENCE_UNKNOWN_FLAGS);
+
 		fences[n] = ptr_pack_bits(syncobj, fence.flags, 2);
 	}
 
@@ -2463,9 +2475,9 @@ i915_gem_execbuffer(struct drm_device *dev, void *data,
 
 	/* Copy in the exec list from userland */
 	exec_list = kvmalloc_array(args->buffer_count, sizeof(*exec_list),
-				   __GFP_NOWARN | GFP_TEMPORARY);
+				   __GFP_NOWARN | GFP_KERNEL);
 	exec2_list = kvmalloc_array(args->buffer_count + 1, sz,
-				    __GFP_NOWARN | GFP_TEMPORARY);
+				    __GFP_NOWARN | GFP_KERNEL);
 	if (exec_list == NULL || exec2_list == NULL) {
 		DRM_DEBUG("Failed to allocate exec list for %d buffers\n",
 			  args->buffer_count);
@@ -2543,7 +2555,7 @@ i915_gem_execbuffer2(struct drm_device *dev, void *data,
 
 	/* Allocate an extra slot for use by the command parser */
 	exec2_list = kvmalloc_array(args->buffer_count + 1, sz,
-				    __GFP_NOWARN | GFP_TEMPORARY);
+				    __GFP_NOWARN | GFP_KERNEL);
 	if (exec2_list == NULL) {
 		DRM_DEBUG("Failed to allocate exec list for %d buffers\n",
 			  args->buffer_count);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 0d5a988b3867..ad524cb0f6fc 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -832,10 +832,14 @@ static void gen8_ppgtt_clear_4lvl(struct i915_address_space *vm,
 	}
 }
 
-struct sgt_dma {
+static inline struct sgt_dma {
 	struct scatterlist *sg;
 	dma_addr_t dma, max;
-};
+} sgt_dma(struct i915_vma *vma) {
+	struct scatterlist *sg = vma->pages->sgl;
+	dma_addr_t addr = sg_dma_address(sg);
+	return (struct sgt_dma) { sg, addr, addr + sg->length };
+}
 
 struct gen8_insert_pte {
 	u16 pml4e;
@@ -916,11 +920,7 @@ static void gen8_ppgtt_insert_3lvl(struct i915_address_space *vm,
 				   u32 unused)
 {
 	struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm);
-	struct sgt_dma iter = {
-		.sg = vma->pages->sgl,
-		.dma = sg_dma_address(iter.sg),
-		.max = iter.dma + iter.sg->length,
-	};
+	struct sgt_dma iter = sgt_dma(vma);
 	struct gen8_insert_pte idx = gen8_insert_pte(vma->node.start);
 
 	gen8_ppgtt_insert_pte_entries(ppgtt, &ppgtt->pdp, &iter, &idx,
@@ -933,11 +933,7 @@ static void gen8_ppgtt_insert_4lvl(struct i915_address_space *vm,
 				   u32 unused)
 {
 	struct i915_hw_ppgtt *ppgtt = i915_vm_to_ppgtt(vm);
-	struct sgt_dma iter = {
-		.sg = vma->pages->sgl,
-		.dma = sg_dma_address(iter.sg),
-		.max = iter.dma + iter.sg->length,
-	};
+	struct sgt_dma iter = sgt_dma(vma);
 	struct i915_page_directory_pointer **pdps = ppgtt->pml4.pdps;
 	struct gen8_insert_pte idx = gen8_insert_pte(vma->node.start);
 
@@ -1632,13 +1628,10 @@ static void gen6_ppgtt_insert_entries(struct i915_address_space *vm,
 	unsigned act_pt = first_entry / GEN6_PTES;
 	unsigned act_pte = first_entry % GEN6_PTES;
 	const u32 pte_encode = vm->pte_encode(0, cache_level, flags);
-	struct sgt_dma iter;
+	struct sgt_dma iter = sgt_dma(vma);
 	gen6_pte_t *vaddr;
 
 	vaddr = kmap_atomic_px(ppgtt->pd.page_table[act_pt]);
-	iter.sg = vma->pages->sgl;
-	iter.dma = sg_dma_address(iter.sg);
-	iter.max = iter.dma + iter.sg->length;
 	do {
 		vaddr[act_pte] = pte_encode | GEN6_PTE_ADDR_ENCODE(iter.dma);
 
@@ -3231,7 +3224,7 @@ intel_rotate_pages(struct intel_rotation_info *rot_info,
 	/* Allocate a temporary list of source pages for random access. */
 	page_addr_list = kvmalloc_array(n_pages,
 					sizeof(dma_addr_t),
-					GFP_TEMPORARY);
+					GFP_KERNEL);
 	if (!page_addr_list)
 		return ERR_PTR(ret);
 
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c
index 23fd18bd1b56..709efe2357ea 100644
--- a/drivers/gpu/drm/i915/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/i915_gem_userptr.c
@@ -507,7 +507,7 @@ __i915_gem_userptr_get_pages_worker(struct work_struct *_work)
 	ret = -ENOMEM;
 	pinned = 0;
 
-	pvec = kvmalloc_array(npages, sizeof(struct page *), GFP_TEMPORARY);
+	pvec = kvmalloc_array(npages, sizeof(struct page *), GFP_KERNEL);
 	if (pvec != NULL) {
 		struct mm_struct *mm = obj->userptr.mm->mm;
 		unsigned int flags = 0;
@@ -643,7 +643,7 @@ i915_gem_userptr_get_pages(struct drm_i915_gem_object *obj)
 
 	if (mm == current->mm) {
 		pvec = kvmalloc_array(num_pages, sizeof(struct page *),
-				      GFP_TEMPORARY |
+				      GFP_KERNEL |
 				      __GFP_NORETRY |
 				      __GFP_NOWARN);
 		if (pvec) /* defer to worker if malloc fails */
diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c
index ed5a1eb839ad..0c779671fe2d 100644
--- a/drivers/gpu/drm/i915/i915_gpu_error.c
+++ b/drivers/gpu/drm/i915/i915_gpu_error.c
@@ -787,16 +787,16 @@ int i915_error_state_buf_init(struct drm_i915_error_state_buf *ebuf,
 	 */
 	ebuf->size = count + 1 > PAGE_SIZE ? count + 1 : PAGE_SIZE;
 	ebuf->buf = kmalloc(ebuf->size,
-				GFP_TEMPORARY | __GFP_NORETRY | __GFP_NOWARN);
+				GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN);
 
 	if (ebuf->buf == NULL) {
 		ebuf->size = PAGE_SIZE;
-		ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY);
+		ebuf->buf = kmalloc(ebuf->size, GFP_KERNEL);
 	}
 
 	if (ebuf->buf == NULL) {
 		ebuf->size = 128;
-		ebuf->buf = kmalloc(ebuf->size, GFP_TEMPORARY);
+		ebuf->buf = kmalloc(ebuf->size, GFP_KERNEL);
 	}
 
 	if (ebuf->buf == NULL)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index e21ce9c18b6e..b63893eeca73 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -839,7 +839,6 @@ static bool i915_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
 								pipe);
 	int position;
 	int vbl_start, vbl_end, hsync_start, htotal, vtotal;
-	bool in_vbl = true;
 	unsigned long irqflags;
 
 	if (WARN_ON(!mode->crtc_clock)) {
@@ -922,8 +921,6 @@ static bool i915_get_crtc_scanoutpos(struct drm_device *dev, unsigned int pipe,
 
 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
 
-	in_vbl = position >= vbl_start && position < vbl_end;
-
 	/*
 	 * While in vblank, position will be negative
 	 * counting up towards 0 at vbl_end. And outside
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 94185d610673..370b9d248fed 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -2537,6 +2537,10 @@ static const struct file_operations fops = {
 	.poll		= i915_perf_poll,
 	.read		= i915_perf_read,
 	.unlocked_ioctl	= i915_perf_ioctl,
+	/* Our ioctl have no arguments, so it's safe to use the same function
+	 * to handle 32bits compatibility.
+	 */
+	.compat_ioctl   = i915_perf_ioctl,
 };
 
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index ed7cd9ee2c2a..c9bcc6c45012 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6998,6 +6998,7 @@ enum {
  */
 #define  L3_GENERAL_PRIO_CREDITS(x)		(((x) >> 1) << 19)
 #define  L3_HIGH_PRIO_CREDITS(x)		(((x) >> 1) << 14)
+#define  L3_PRIO_CREDITS_MASK			((0x1f << 19) | (0x1f << 14))
 
 #define GEN7_L3CNTLREG1				_MMIO(0xB01C)
 #define  GEN7_WA_FOR_GEN7_L3_CONTROL			0x3C47FF8C
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 6fd5c57e21f6..ef72da74b87f 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_I915_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
 #define _I915_TRACE_H_
 
diff --git a/drivers/gpu/drm/i915/i915_trace_points.c b/drivers/gpu/drm/i915/i915_trace_points.c
index f1df2bd4ecf4..463a7177997c 100644
--- a/drivers/gpu/drm/i915/i915_trace_points.c
+++ b/drivers/gpu/drm/i915/i915_trace_points.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright © 2009 Intel Corporation
  *
diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c
index 42fb436f6cdc..d1abf4bb7c81 100644
--- a/drivers/gpu/drm/i915/intel_acpi.c
+++ b/drivers/gpu/drm/i915/intel_acpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Intel ACPI functions
  *
diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c
index d805b6e6fe71..27743be5b768 100644
--- a/drivers/gpu/drm/i915/intel_audio.c
+++ b/drivers/gpu/drm/i915/intel_audio.c
@@ -606,11 +606,6 @@ void intel_audio_codec_enable(struct intel_encoder *intel_encoder,
 			 connector->encoder->base.id,
 			 connector->encoder->name);
 
-	/* ELD Conn_Type */
-	connector->eld[5] &= ~(3 << 2);
-	if (intel_crtc_has_dp_encoder(crtc_state))
-		connector->eld[5] |= (1 << 2);
-
 	connector->eld[6] = drm_av_sync_delay(connector, adjusted_mode) / 2;
 
 	if (dev_priv->display.audio_codec_enable)
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 183e87e8ea31..5d4cd3d00564 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1163,6 +1163,13 @@ static void parse_ddi_port(struct drm_i915_private *dev_priv, enum port port,
 	is_hdmi = is_dvi && (child->common.device_type & DEVICE_TYPE_NOT_HDMI_OUTPUT) == 0;
 	is_edp = is_dp && (child->common.device_type & DEVICE_TYPE_INTERNAL_CONNECTOR);
 
+	if (port == PORT_A && is_dvi) {
+		DRM_DEBUG_KMS("VBT claims port A supports DVI%s, ignoring\n",
+			      is_hdmi ? "/HDMI" : "");
+		is_dvi = false;
+		is_hdmi = false;
+	}
+
 	info->supports_dvi = is_dvi;
 	info->supports_hdmi = is_hdmi;
 	info->supports_dp = is_dp;
@@ -1233,7 +1240,7 @@ static void parse_ddi_ports(struct drm_i915_private *dev_priv,
 {
 	enum port port;
 
-	if (!HAS_DDI(dev_priv))
+	if (!HAS_DDI(dev_priv) && !IS_CHERRYVIEW(dev_priv))
 		return;
 
 	if (!dev_priv->vbt.child_dev_num)
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index ff9ecd211abb..b8315bca852b 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -74,7 +74,7 @@
 #define I9XX_CSC_COEFF_1_0		\
 	((7 << 12) | I9XX_CSC_COEFF_FP(CTM_COEFF_1_0, 8))
 
-static bool crtc_state_is_legacy(struct drm_crtc_state *state)
+static bool crtc_state_is_legacy_gamma(struct drm_crtc_state *state)
 {
 	return !state->degamma_lut &&
 		!state->ctm &&
@@ -288,7 +288,7 @@ static void cherryview_load_csc_matrix(struct drm_crtc_state *state)
 	}
 
 	mode = (state->ctm ? CGM_PIPE_MODE_CSC : 0);
-	if (!crtc_state_is_legacy(state)) {
+	if (!crtc_state_is_legacy_gamma(state)) {
 		mode |= (state->degamma_lut ? CGM_PIPE_MODE_DEGAMMA : 0) |
 			(state->gamma_lut ? CGM_PIPE_MODE_GAMMA : 0);
 	}
@@ -469,7 +469,7 @@ static void broadwell_load_luts(struct drm_crtc_state *state)
 	struct intel_crtc_state *intel_state = to_intel_crtc_state(state);
 	enum pipe pipe = to_intel_crtc(state->crtc)->pipe;
 
-	if (crtc_state_is_legacy(state)) {
+	if (crtc_state_is_legacy_gamma(state)) {
 		haswell_load_luts(state);
 		return;
 	}
@@ -529,7 +529,7 @@ static void glk_load_luts(struct drm_crtc_state *state)
 
 	glk_load_degamma_lut(state);
 
-	if (crtc_state_is_legacy(state)) {
+	if (crtc_state_is_legacy_gamma(state)) {
 		haswell_load_luts(state);
 		return;
 	}
@@ -551,7 +551,7 @@ static void cherryview_load_luts(struct drm_crtc_state *state)
 	uint32_t i, lut_size;
 	uint32_t word0, word1;
 
-	if (crtc_state_is_legacy(state)) {
+	if (crtc_state_is_legacy_gamma(state)) {
 		/* Turn off degamma/gamma on CGM block. */
 		I915_WRITE(CGM_PIPE_MODE(pipe),
 			   (state->ctm ? CGM_PIPE_MODE_CSC : 0));
@@ -632,12 +632,10 @@ int intel_color_check(struct drm_crtc *crtc,
 		return 0;
 
 	/*
-	 * We also allow no degamma lut and a gamma lut at the legacy
+	 * We also allow no degamma lut/ctm and a gamma lut at the legacy
 	 * size (256 entries).
 	 */
-	if (!crtc_state->degamma_lut &&
-	    crtc_state->gamma_lut &&
-	    crtc_state->gamma_lut->length == LEGACY_LUT_LENGTH)
+	if (crtc_state_is_legacy_gamma(crtc_state))
 		return 0;
 
 	return -EINVAL;
diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 965988f79a55..92c1f8e166dc 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -216,7 +216,7 @@ static void gen9_set_dc_state_debugmask(struct drm_i915_private *dev_priv)
 
 	mask = DC_STATE_DEBUG_MASK_MEMORY_UP;
 
-	if (IS_BROXTON(dev_priv))
+	if (IS_GEN9_LP(dev_priv))
 		mask |= DC_STATE_DEBUG_MASK_CORES;
 
 	/* The below bit doesn't need to be cleared ever afterwards */
diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 4b4fd1f8110b..5e5fe03b638c 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -664,8 +664,8 @@ intel_ddi_get_buf_trans_fdi(struct drm_i915_private *dev_priv,
 			    int *n_entries)
 {
 	if (IS_BROADWELL(dev_priv)) {
-		*n_entries = ARRAY_SIZE(hsw_ddi_translations_fdi);
-		return hsw_ddi_translations_fdi;
+		*n_entries = ARRAY_SIZE(bdw_ddi_translations_fdi);
+		return bdw_ddi_translations_fdi;
 	} else if (IS_HASWELL(dev_priv)) {
 		*n_entries = ARRAY_SIZE(hsw_ddi_translations_fdi);
 		return hsw_ddi_translations_fdi;
@@ -1655,7 +1655,8 @@ bool intel_ddi_get_hw_state(struct intel_encoder *encoder,
 out:
 	if (ret && IS_GEN9_LP(dev_priv)) {
 		tmp = I915_READ(BXT_PHY_CTL(port));
-		if ((tmp & (BXT_PHY_LANE_POWERDOWN_ACK |
+		if ((tmp & (BXT_PHY_CMNLANE_POWERDOWN_ACK |
+			    BXT_PHY_LANE_POWERDOWN_ACK |
 			    BXT_PHY_LANE_ENABLED)) != BXT_PHY_LANE_ENABLED)
 			DRM_ERROR("Port %c enabled but PHY powered down? "
 				  "(PHY_CTL %08x)\n", port_name(port), tmp);
@@ -2101,8 +2102,7 @@ static void intel_ddi_clk_select(struct intel_encoder *encoder,
 		 * register writes.
 		 */
 		val = I915_READ(DPCLKA_CFGCR0);
-		val &= ~(DPCLKA_CFGCR0_DDI_CLK_OFF(port) |
-			 DPCLKA_CFGCR0_DDI_CLK_SEL_MASK(port));
+		val &= ~DPCLKA_CFGCR0_DDI_CLK_OFF(port);
 		I915_WRITE(DPCLKA_CFGCR0, val);
 	} else if (IS_GEN9_BC(dev_priv)) {
 		/* DDI -> PLL mapping  */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index f17275519484..5ebdb63330dd 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10245,13 +10245,10 @@ struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
-	enum transcoder cpu_transcoder = intel_crtc->config->cpu_transcoder;
+	enum transcoder cpu_transcoder;
 	struct drm_display_mode *mode;
 	struct intel_crtc_state *pipe_config;
-	int htot = I915_READ(HTOTAL(cpu_transcoder));
-	int hsync = I915_READ(HSYNC(cpu_transcoder));
-	int vtot = I915_READ(VTOTAL(cpu_transcoder));
-	int vsync = I915_READ(VSYNC(cpu_transcoder));
+	u32 htot, hsync, vtot, vsync;
 	enum pipe pipe = intel_crtc->pipe;
 
 	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
@@ -10279,6 +10276,13 @@ struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
 	i9xx_crtc_clock_get(intel_crtc, pipe_config);
 
 	mode->clock = pipe_config->port_clock / pipe_config->pixel_multiplier;
+
+	cpu_transcoder = pipe_config->cpu_transcoder;
+	htot = I915_READ(HTOTAL(cpu_transcoder));
+	hsync = I915_READ(HSYNC(cpu_transcoder));
+	vtot = I915_READ(VTOTAL(cpu_transcoder));
+	vsync = I915_READ(VSYNC(cpu_transcoder));
+
 	mode->hdisplay = (htot & 0xffff) + 1;
 	mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
 	mode->hsync_start = (hsync & 0xffff) + 1;
@@ -12359,7 +12363,6 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 	struct drm_crtc_state *old_crtc_state, *new_crtc_state;
 	struct drm_crtc *crtc;
 	struct intel_crtc_state *intel_cstate;
-	bool hw_check = intel_state->modeset;
 	u64 put_domains[I915_MAX_PIPES] = {};
 	unsigned crtc_vblank_mask = 0;
 	int i;
@@ -12376,7 +12379,6 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state)
 
 		if (needs_modeset(new_crtc_state) ||
 		    to_intel_crtc_state(new_crtc_state)->update_pipe) {
-			hw_check = true;
 
 			put_domains[to_intel_crtc(crtc)->pipe] =
 				modeset_get_crtc_power_domains(crtc,
@@ -14030,7 +14032,7 @@ static int intel_framebuffer_init(struct intel_framebuffer *intel_fb,
 
 		if (mode_cmd->handles[i] != mode_cmd->handles[0]) {
 			DRM_DEBUG_KMS("bad plane %d handle\n", i);
-			return -EINVAL;
+			goto err;
 		}
 
 		stride_alignment = intel_fb_stride_alignment(fb, i);
@@ -15225,6 +15227,23 @@ void intel_connector_unregister(struct drm_connector *connector)
 	intel_panel_destroy_backlight(connector);
 }
 
+static void intel_hpd_poll_fini(struct drm_device *dev)
+{
+	struct intel_connector *connector;
+	struct drm_connector_list_iter conn_iter;
+
+	/* First disable polling... */
+	drm_kms_helper_poll_fini(dev);
+
+	/* Then kill the work that may have been queued by hpd. */
+	drm_connector_list_iter_begin(dev, &conn_iter);
+	for_each_intel_connector_iter(connector, &conn_iter) {
+		if (connector->modeset_retry_work.func)
+			cancel_work_sync(&connector->modeset_retry_work);
+	}
+	drm_connector_list_iter_end(&conn_iter);
+}
+
 void intel_modeset_cleanup(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = to_i915(dev);
@@ -15245,7 +15264,7 @@ void intel_modeset_cleanup(struct drm_device *dev)
 	 * Due to the hpd irq storm handling the hotplug work can re-arm the
 	 * poll handlers. Hence disable polling after hpd handling is shut down.
 	 */
-	drm_kms_helper_poll_fini(dev);
+	intel_hpd_poll_fini(dev);
 
 	/* poll work can call into fbdev, hence clean that up afterwards */
 	intel_fbdev_fini(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 64134947c0aa..09f274419eea 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2307,8 +2307,8 @@ static void edp_panel_off(struct intel_dp *intel_dp)
 	I915_WRITE(pp_ctrl_reg, pp);
 	POSTING_READ(pp_ctrl_reg);
 
-	intel_dp->panel_power_off_time = ktime_get_boottime();
 	wait_panel_off(intel_dp);
+	intel_dp->panel_power_off_time = ktime_get_boottime();
 
 	/* We got a reference when we enabled the VDD. */
 	intel_display_power_put(dev_priv, intel_dp->aux_power_domain);
@@ -3731,9 +3731,16 @@ intel_edp_init_dpcd(struct intel_dp *intel_dp)
 
 	}
 
-	/* Read the eDP Display control capabilities registers */
-	if ((intel_dp->dpcd[DP_EDP_CONFIGURATION_CAP] & DP_DPCD_DISPLAY_CONTROL_CAPABLE) &&
-	    drm_dp_dpcd_read(&intel_dp->aux, DP_EDP_DPCD_REV,
+	/*
+	 * Read the eDP display control registers.
+	 *
+	 * Do this independent of DP_DPCD_DISPLAY_CONTROL_CAPABLE bit in
+	 * DP_EDP_CONFIGURATION_CAP, because some buggy displays do not have it
+	 * set, but require eDP 1.4+ detection (e.g. for supported link rates
+	 * method). The display control registers should read zero if they're
+	 * not supported anyway.
+	 */
+	if (drm_dp_dpcd_read(&intel_dp->aux, DP_EDP_DPCD_REV,
 			     intel_dp->edp_dpcd, sizeof(intel_dp->edp_dpcd)) ==
 			     sizeof(intel_dp->edp_dpcd))
 		DRM_DEBUG_KMS("EDP DPCD : %*ph\n", (int) sizeof(intel_dp->edp_dpcd),
@@ -5273,7 +5280,7 @@ intel_dp_init_panel_power_sequencer(struct drm_device *dev,
 	 * seems sufficient to avoid this problem.
 	 */
 	if (dev_priv->quirks & QUIRK_INCREASE_T12_DELAY) {
-		vbt.t11_t12 = max_t(u16, vbt.t11_t12, 900 * 10);
+		vbt.t11_t12 = max_t(u16, vbt.t11_t12, 1300 * 10);
 		DRM_DEBUG_KMS("Increasing T12 panel delay as per the quirk to %d\n",
 			      vbt.t11_t12);
 	}
diff --git a/drivers/gpu/drm/i915/intel_dpio_phy.c b/drivers/gpu/drm/i915/intel_dpio_phy.c
index 09b670929786..de38d014ed39 100644
--- a/drivers/gpu/drm/i915/intel_dpio_phy.c
+++ b/drivers/gpu/drm/i915/intel_dpio_phy.c
@@ -208,12 +208,6 @@ static const struct bxt_ddi_phy_info glk_ddi_phy_info[] = {
 	},
 };
 
-static u32 bxt_phy_port_mask(const struct bxt_ddi_phy_info *phy_info)
-{
-	return (phy_info->dual_channel * BIT(phy_info->channel[DPIO_CH1].port)) |
-		BIT(phy_info->channel[DPIO_CH0].port);
-}
-
 static const struct bxt_ddi_phy_info *
 bxt_get_phy_list(struct drm_i915_private *dev_priv, int *count)
 {
@@ -313,7 +307,6 @@ bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
 			    enum dpio_phy phy)
 {
 	const struct bxt_ddi_phy_info *phy_info;
-	enum port port;
 
 	phy_info = bxt_get_phy_info(dev_priv, phy);
 
@@ -335,19 +328,6 @@ bool bxt_ddi_phy_is_enabled(struct drm_i915_private *dev_priv,
 		return false;
 	}
 
-	for_each_port_masked(port, bxt_phy_port_mask(phy_info)) {
-		u32 tmp = I915_READ(BXT_PHY_CTL(port));
-
-		if (tmp & BXT_PHY_CMNLANE_POWERDOWN_ACK) {
-			DRM_DEBUG_DRIVER("DDI PHY %d powered, but common lane "
-					 "for port %c powered down "
-					 "(PHY_CTL %08x)\n",
-					 phy, port_name(port), tmp);
-
-			return false;
-		}
-	}
-
 	return true;
 }
 
diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index a2a3d93d67bd..df808a94c511 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -1996,7 +1996,7 @@ static void cnl_ddi_pll_enable(struct drm_i915_private *dev_priv,
 
 	/* 3. Configure DPLL_CFGCR0 */
 	/* Avoid touch CFGCR1 if HDMI mode is not enabled */
-	if (pll->state.hw_state.cfgcr0 & DPLL_CTRL1_HDMI_MODE(pll->id)) {
+	if (pll->state.hw_state.cfgcr0 & DPLL_CFGCR0_HDMI_MODE) {
 		val = pll->state.hw_state.cfgcr1;
 		I915_WRITE(CNL_DPLL_CFGCR1(pll->id), val);
 		/* 4. Reab back to ensure writes completed */
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index fa47285918f4..79fbaf78f604 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -496,7 +496,6 @@ struct intel_crtc_scaler_state {
 
 struct intel_pipe_wm {
 	struct intel_wm_level wm[5];
-	struct intel_wm_level raw_wm[5];
 	uint32_t linetime;
 	bool fbc_wm_enabled;
 	bool pipe_enabled;
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index f0c11aec5ea5..7442891762be 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -892,8 +892,6 @@ static void intel_dsi_disable(struct intel_encoder *encoder,
 			      struct intel_crtc_state *old_crtc_state,
 			      struct drm_connector_state *old_conn_state)
 {
-	struct drm_device *dev = encoder->base.dev;
-	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
 	enum port port;
 
@@ -903,15 +901,6 @@ static void intel_dsi_disable(struct intel_encoder *encoder,
 	intel_panel_disable_backlight(old_conn_state);
 
 	/*
-	 * Disable Device ready before the port shutdown in order
-	 * to avoid split screen
-	 */
-	if (IS_BROXTON(dev_priv)) {
-		for_each_dsi_port(port, intel_dsi->ports)
-			I915_WRITE(MIPI_DEVICE_READY(port), 0);
-	}
-
-	/*
 	 * According to the spec we should send SHUTDOWN before
 	 * MIPI_SEQ_DISPLAY_OFF only for v3+ VBTs, but field testing
 	 * has shown that the v3 sequence works for v2 VBTs too
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 9ab596941372..3c2d9cf22ed5 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1048,9 +1048,12 @@ static int bxt_init_workarounds(struct intel_engine_cs *engine)
 	}
 
 	/* WaProgramL3SqcReg1DefaultForPerf:bxt */
-	if (IS_BXT_REVID(dev_priv, BXT_REVID_B0, REVID_FOREVER))
-		I915_WRITE(GEN8_L3SQCREG1, L3_GENERAL_PRIO_CREDITS(62) |
-					   L3_HIGH_PRIO_CREDITS(2));
+	if (IS_BXT_REVID(dev_priv, BXT_REVID_B0, REVID_FOREVER)) {
+		u32 val = I915_READ(GEN8_L3SQCREG1);
+		val &= ~L3_PRIO_CREDITS_MASK;
+		val |= L3_GENERAL_PRIO_CREDITS(62) | L3_HIGH_PRIO_CREDITS(2);
+		I915_WRITE(GEN8_L3SQCREG1, val);
+	}
 
 	/* WaToEnableHwFixForPushConstHWBug:bxt */
 	if (IS_BXT_REVID(dev_priv, BXT_REVID_C0, REVID_FOREVER))
diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c
index 951e834dd274..28a778b785ac 100644
--- a/drivers/gpu/drm/i915/intel_modes.c
+++ b/drivers/gpu/drm/i915/intel_modes.c
@@ -30,6 +30,21 @@
 #include "intel_drv.h"
 #include "i915_drv.h"
 
+static void intel_connector_update_eld_conn_type(struct drm_connector *connector)
+{
+	u8 conn_type;
+
+	if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort ||
+	    connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
+		conn_type = DRM_ELD_CONN_TYPE_DP;
+	} else {
+		conn_type = DRM_ELD_CONN_TYPE_HDMI;
+	}
+
+	connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] &= ~DRM_ELD_CONN_TYPE_MASK;
+	connector->eld[DRM_ELD_SAD_COUNT_CONN_TYPE] |= conn_type;
+}
+
 /**
  * intel_connector_update_modes - update connector from edid
  * @connector: DRM connector device to use
@@ -44,6 +59,8 @@ int intel_connector_update_modes(struct drm_connector *connector,
 	ret = drm_add_edid_modes(connector, edid);
 	drm_edid_to_eld(connector, edid);
 
+	intel_connector_update_eld_conn_type(connector);
+
 	return ret;
 }
 
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index a17b1de7d7e0..3b1c5d783ee7 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -1699,6 +1699,8 @@ bxt_setup_backlight(struct intel_connector *connector, enum pipe unused)
 	if (!panel->backlight.max)
 		return -ENODEV;
 
+	panel->backlight.min = get_backlight_min_vbt(connector);
+
 	val = bxt_get_backlight(connector);
 	val = intel_panel_compute_brightness(connector, val);
 	panel->backlight.level = clamp(val, panel->backlight.min,
@@ -1735,6 +1737,8 @@ cnp_setup_backlight(struct intel_connector *connector, enum pipe unused)
 	if (!panel->backlight.max)
 		return -ENODEV;
 
+	panel->backlight.min = get_backlight_min_vbt(connector);
+
 	val = bxt_get_backlight(connector);
 	val = intel_panel_compute_brightness(connector, val);
 	panel->backlight.level = clamp(val, panel->backlight.min,
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ed662937ec3c..cb950752c346 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -2716,9 +2716,9 @@ static void ilk_compute_wm_level(const struct drm_i915_private *dev_priv,
 				 const struct intel_crtc *intel_crtc,
 				 int level,
 				 struct intel_crtc_state *cstate,
-				 struct intel_plane_state *pristate,
-				 struct intel_plane_state *sprstate,
-				 struct intel_plane_state *curstate,
+				 const struct intel_plane_state *pristate,
+				 const struct intel_plane_state *sprstate,
+				 const struct intel_plane_state *curstate,
 				 struct intel_wm_level *result)
 {
 	uint16_t pri_latency = dev_priv->wm.pri_latency[level];
@@ -3038,28 +3038,24 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate)
 	struct intel_pipe_wm *pipe_wm;
 	struct drm_device *dev = state->dev;
 	const struct drm_i915_private *dev_priv = to_i915(dev);
-	struct intel_plane *intel_plane;
-	struct intel_plane_state *pristate = NULL;
-	struct intel_plane_state *sprstate = NULL;
-	struct intel_plane_state *curstate = NULL;
+	struct drm_plane *plane;
+	const struct drm_plane_state *plane_state;
+	const struct intel_plane_state *pristate = NULL;
+	const struct intel_plane_state *sprstate = NULL;
+	const struct intel_plane_state *curstate = NULL;
 	int level, max_level = ilk_wm_max_level(dev_priv), usable_level;
 	struct ilk_wm_maximums max;
 
 	pipe_wm = &cstate->wm.ilk.optimal;
 
-	for_each_intel_plane_on_crtc(dev, intel_crtc, intel_plane) {
-		struct intel_plane_state *ps;
-
-		ps = intel_atomic_get_existing_plane_state(state,
-							   intel_plane);
-		if (!ps)
-			continue;
+	drm_atomic_crtc_state_for_each_plane_state(plane, plane_state, &cstate->base) {
+		const struct intel_plane_state *ps = to_intel_plane_state(plane_state);
 
-		if (intel_plane->base.type == DRM_PLANE_TYPE_PRIMARY)
+		if (plane->type == DRM_PLANE_TYPE_PRIMARY)
 			pristate = ps;
-		else if (intel_plane->base.type == DRM_PLANE_TYPE_OVERLAY)
+		else if (plane->type == DRM_PLANE_TYPE_OVERLAY)
 			sprstate = ps;
-		else if (intel_plane->base.type == DRM_PLANE_TYPE_CURSOR)
+		else if (plane->type == DRM_PLANE_TYPE_CURSOR)
 			curstate = ps;
 	}
 
@@ -3081,11 +3077,9 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate)
 	if (pipe_wm->sprites_scaled)
 		usable_level = 0;
 
-	ilk_compute_wm_level(dev_priv, intel_crtc, 0, cstate,
-			     pristate, sprstate, curstate, &pipe_wm->raw_wm[0]);
-
 	memset(&pipe_wm->wm, 0, sizeof(pipe_wm->wm));
-	pipe_wm->wm[0] = pipe_wm->raw_wm[0];
+	ilk_compute_wm_level(dev_priv, intel_crtc, 0, cstate,
+			     pristate, sprstate, curstate, &pipe_wm->wm[0]);
 
 	if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))
 		pipe_wm->linetime = hsw_compute_linetime_wm(cstate);
@@ -3095,8 +3089,8 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate)
 
 	ilk_compute_wm_reg_maximums(dev_priv, 1, &max);
 
-	for (level = 1; level <= max_level; level++) {
-		struct intel_wm_level *wm = &pipe_wm->raw_wm[level];
+	for (level = 1; level <= usable_level; level++) {
+		struct intel_wm_level *wm = &pipe_wm->wm[level];
 
 		ilk_compute_wm_level(dev_priv, intel_crtc, level, cstate,
 				     pristate, sprstate, curstate, wm);
@@ -3106,13 +3100,10 @@ static int ilk_compute_pipe_wm(struct intel_crtc_state *cstate)
 		 * register maximums since such watermarks are
 		 * always invalid.
 		 */
-		if (level > usable_level)
-			continue;
-
-		if (ilk_validate_wm_level(level, &max, wm))
-			pipe_wm->wm[level] = *wm;
-		else
-			usable_level = level;
+		if (!ilk_validate_wm_level(level, &max, wm)) {
+			memset(wm, 0, sizeof(*wm));
+			break;
+		}
 	}
 
 	return 0;
@@ -8245,14 +8236,17 @@ static void gen8_set_l3sqc_credits(struct drm_i915_private *dev_priv,
 				   int high_prio_credits)
 {
 	u32 misccpctl;
+	u32 val;
 
 	/* WaTempDisableDOPClkGating:bdw */
 	misccpctl = I915_READ(GEN7_MISCCPCTL);
 	I915_WRITE(GEN7_MISCCPCTL, misccpctl & ~GEN7_DOP_CLOCK_GATE_ENABLE);
 
-	I915_WRITE(GEN8_L3SQCREG1,
-		   L3_GENERAL_PRIO_CREDITS(general_prio_credits) |
-		   L3_HIGH_PRIO_CREDITS(high_prio_credits));
+	val = I915_READ(GEN8_L3SQCREG1);
+	val &= ~L3_PRIO_CREDITS_MASK;
+	val |= L3_GENERAL_PRIO_CREDITS(general_prio_credits);
+	val |= L3_HIGH_PRIO_CREDITS(high_prio_credits);
+	I915_WRITE(GEN8_L3SQCREG1, val);
 
 	/*
 	 * Wait at least 100 clocks before re-enabling clock gating.
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h
index 02d8974bf9ab..6b2067f10824 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.h
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INTEL_RINGBUFFER_H_
 #define _INTEL_RINGBUFFER_H_
 
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
index b66d8e136aa3..49577eba8e7e 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -368,7 +368,7 @@ static void hsw_power_well_enable(struct drm_i915_private *dev_priv,
 {
 	enum i915_power_well_id id = power_well->id;
 	bool wait_fuses = power_well->hsw.has_fuses;
-	enum skl_power_gate pg;
+	enum skl_power_gate uninitialized_var(pg);
 	u32 val;
 
 	if (wait_fuses) {
@@ -2782,6 +2782,9 @@ static void cnl_display_core_init(struct drm_i915_private *dev_priv, bool resume
 
 	/* 6. Enable DBUF */
 	gen9_dbuf_enable(dev_priv);
+
+	if (resume && dev_priv->csr.dmc_payload)
+		intel_csr_load_program(dev_priv);
 }
 
 #undef CNL_PROCMON_IDX
diff --git a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
index 18b174d855ca..1519f1b7841b 100644
--- a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* List each unit test as selftest(name, function)
  *
  * The name is used as both an enum and expanded as subtest__name to create
diff --git a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
index fc74687501ba..e5a9e5dcf2f3 100644
--- a/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_mock_selftests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* List each unit test as selftest(name, function)
  *
  * The name is used as both an enum and expanded as subtest__name to create
diff --git a/drivers/gpu/drm/i915/selftests/i915_random.c b/drivers/gpu/drm/i915/selftests/i915_random.c
index d044bf9a6feb..222c511bea49 100644
--- a/drivers/gpu/drm/i915/selftests/i915_random.c
+++ b/drivers/gpu/drm/i915/selftests/i915_random.c
@@ -62,7 +62,7 @@ unsigned int *i915_random_order(unsigned int count, struct rnd_state *state)
 {
 	unsigned int *order, i;
 
-	order = kmalloc_array(count, sizeof(*order), GFP_TEMPORARY);
+	order = kmalloc_array(count, sizeof(*order), GFP_KERNEL);
 	if (!order)
 		return order;
 
diff --git a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
index 7276194c04f7..828904b7d468 100644
--- a/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/selftests/intel_breadcrumbs.c
@@ -117,12 +117,12 @@ static int igt_random_insert_remove(void *arg)
 
 	mock_engine_reset(engine);
 
-	waiters = kvmalloc_array(count, sizeof(*waiters), GFP_TEMPORARY);
+	waiters = kvmalloc_array(count, sizeof(*waiters), GFP_KERNEL);
 	if (!waiters)
 		goto out_engines;
 
 	bitmap = kcalloc(DIV_ROUND_UP(count, BITS_PER_LONG), sizeof(*bitmap),
-			 GFP_TEMPORARY);
+			 GFP_KERNEL);
 	if (!bitmap)
 		goto out_waiters;
 
@@ -187,12 +187,12 @@ static int igt_insert_complete(void *arg)
 
 	mock_engine_reset(engine);
 
-	waiters = kvmalloc_array(count, sizeof(*waiters), GFP_TEMPORARY);
+	waiters = kvmalloc_array(count, sizeof(*waiters), GFP_KERNEL);
 	if (!waiters)
 		goto out_engines;
 
 	bitmap = kcalloc(DIV_ROUND_UP(count, BITS_PER_LONG), sizeof(*bitmap),
-			 GFP_TEMPORARY);
+			 GFP_KERNEL);
 	if (!bitmap)
 		goto out_waiters;
 
@@ -368,7 +368,7 @@ static int igt_wakeup(void *arg)
 
 	mock_engine_reset(engine);
 
-	waiters = kvmalloc_array(count, sizeof(*waiters), GFP_TEMPORARY);
+	waiters = kvmalloc_array(count, sizeof(*waiters), GFP_KERNEL);
 	if (!waiters)
 		goto out_engines;
 
diff --git a/drivers/gpu/drm/i915/selftests/intel_uncore.c b/drivers/gpu/drm/i915/selftests/intel_uncore.c
index 2d0fef2cfca6..3cac22eb47ce 100644
--- a/drivers/gpu/drm/i915/selftests/intel_uncore.c
+++ b/drivers/gpu/drm/i915/selftests/intel_uncore.c
@@ -127,7 +127,7 @@ static int intel_uncore_check_forcewake_domains(struct drm_i915_private *dev_pri
 		return 0;
 
 	valid = kzalloc(BITS_TO_LONGS(FW_RANGE) * sizeof(*valid),
-			GFP_TEMPORARY);
+			GFP_KERNEL);
 	if (!valid)
 		return -ENOMEM;
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.h b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
index 4cca4d57f52c..b5dc4e394555 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_device.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MOCK_GEM_DEVICE_H__
 #define __MOCK_GEM_DEVICE_H__
 
diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_object.h b/drivers/gpu/drm/i915/selftests/mock_gem_object.h
index 9fbf67321662..20acdbee7bd0 100644
--- a/drivers/gpu/drm/i915/selftests/mock_gem_object.h
+++ b/drivers/gpu/drm/i915/selftests/mock_gem_object.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MOCK_GEM_OBJECT_H__
 #define __MOCK_GEM_OBJECT_H__
 
diff --git a/drivers/gpu/drm/imx/Makefile b/drivers/gpu/drm/imx/Makefile
index 16ecef33e008..ab6c83caceb7 100644
--- a/drivers/gpu/drm/imx/Makefile
+++ b/drivers/gpu/drm/imx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 imxdrm-objs := imx-drm-core.o ipuv3-crtc.o ipuv3-plane.o
 
diff --git a/drivers/gpu/drm/imx/imx-drm.h b/drivers/gpu/drm/imx/imx-drm.h
index f6dd64be9cd5..f0b7556c0857 100644
--- a/drivers/gpu/drm/imx/imx-drm.h
+++ b/drivers/gpu/drm/imx/imx-drm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IMX_DRM_H_
 #define _IMX_DRM_H_
 
diff --git a/drivers/gpu/drm/imx/ipuv3-plane.h b/drivers/gpu/drm/imx/ipuv3-plane.h
index 596b24ddbf65..e563ea17a827 100644
--- a/drivers/gpu/drm/imx/ipuv3-plane.h
+++ b/drivers/gpu/drm/imx/ipuv3-plane.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IPUV3_PLANE_H__
 #define __IPUV3_PLANE_H__
 
diff --git a/drivers/gpu/drm/lib/drm_random.c b/drivers/gpu/drm/lib/drm_random.c
index 7b12a68c3b54..eeb155826d27 100644
--- a/drivers/gpu/drm/lib/drm_random.c
+++ b/drivers/gpu/drm/lib/drm_random.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/kernel.h>
 #include <linux/random.h>
@@ -28,7 +29,7 @@ unsigned int *drm_random_order(unsigned int count, struct rnd_state *state)
 {
 	unsigned int *order, i;
 
-	order = kmalloc_array(count, sizeof(*order), GFP_TEMPORARY);
+	order = kmalloc_array(count, sizeof(*order), GFP_KERNEL);
 	if (!order)
 		return order;
 
diff --git a/drivers/gpu/drm/lib/drm_random.h b/drivers/gpu/drm/lib/drm_random.h
index a78644bea7f9..4a3e94dfa0c0 100644
--- a/drivers/gpu/drm/lib/drm_random.h
+++ b/drivers/gpu/drm/lib/drm_random.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_RANDOM_H__
 #define __DRM_RANDOM_H__
 
diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index e37b55a23a65..ce83c396a742 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 mediatek-drm-y := mtk_disp_color.o \
 		  mtk_disp_ovl.o \
 		  mtk_disp_rdma.o \
diff --git a/drivers/gpu/drm/mgag200/mgag200_reg.h b/drivers/gpu/drm/mgag200/mgag200_reg.h
index 3ae442a64bd6..c096a9d6bcbc 100644
--- a/drivers/gpu/drm/mgag200/mgag200_reg.h
+++ b/drivers/gpu/drm/mgag200/mgag200_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MGA Millennium (MGA2064W) functions
  * MGA Mystique (MGA1064SG) functions
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index 33008fa1be9b..ced70783b44e 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Idrivers/gpu/drm/msm
 ccflags-$(CONFIG_DRM_MSM_DSI) += -Idrivers/gpu/drm/msm/dsi
 
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index dbb31a014419..deaf869374ea 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -248,7 +248,7 @@ disable_clks:
 	clk_disable_unprepare(ahb_clk);
 disable_gdsc:
 	regulator_disable(gdsc_reg);
-	pm_runtime_put_autosuspend(dev);
+	pm_runtime_put_sync(dev);
 put_clk:
 	clk_put(ahb_clk);
 put_gdsc:
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
index c2bdad88447e..824067d2d427 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_cfg.c
@@ -83,6 +83,8 @@ const struct mdp5_cfg_hw msm8x74v1_config = {
 				  .caps = MDP_LM_CAP_WB },
 			     },
 		.nb_stages = 5,
+		.max_width = 2048,
+		.max_height = 0xFFFF,
 	},
 	.dspp = {
 		.count = 3,
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
index 6fcb58ab718c..440977677001 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_crtc.c
@@ -804,8 +804,6 @@ static int mdp5_crtc_cursor_set(struct drm_crtc *crtc,
 
 	spin_unlock_irqrestore(&mdp5_crtc->cursor.lock, flags);
 
-	pm_runtime_put_autosuspend(&pdev->dev);
-
 set_cursor:
 	ret = mdp5_ctl_set_cursor(ctl, pipeline, 0, cursor_enable);
 	if (ret) {
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c
index f15821a0d900..ea5bb0e1632c 100644
--- a/drivers/gpu/drm/msm/msm_gem.c
+++ b/drivers/gpu/drm/msm/msm_gem.c
@@ -610,17 +610,6 @@ int msm_gem_sync_object(struct drm_gem_object *obj,
 	struct dma_fence *fence;
 	int i, ret;
 
-	if (!exclusive) {
-		/* NOTE: _reserve_shared() must happen before _add_shared_fence(),
-		 * which makes this a slightly strange place to call it.  OTOH this
-		 * is a convenient can-fail point to hook it in.  (And similar to
-		 * how etnaviv and nouveau handle this.)
-		 */
-		ret = reservation_object_reserve_shared(msm_obj->resv);
-		if (ret)
-			return ret;
-	}
-
 	fobj = reservation_object_get_list(msm_obj->resv);
 	if (!fobj || (fobj->shared_count == 0)) {
 		fence = reservation_object_get_excl(msm_obj->resv);
@@ -1045,10 +1034,10 @@ static void *_msm_gem_kernel_new(struct drm_device *dev, uint32_t size,
 	}
 
 	vaddr = msm_gem_get_vaddr(obj);
-	if (!vaddr) {
+	if (IS_ERR(vaddr)) {
 		msm_gem_put_iova(obj, aspace);
 		drm_gem_object_unreference(obj);
-		return ERR_PTR(-ENOMEM);
+		return ERR_CAST(vaddr);
 	}
 
 	if (bo)
diff --git a/drivers/gpu/drm/msm/msm_gem_submit.c b/drivers/gpu/drm/msm/msm_gem_submit.c
index 8a75c0bd8a78..93535cac0676 100644
--- a/drivers/gpu/drm/msm/msm_gem_submit.c
+++ b/drivers/gpu/drm/msm/msm_gem_submit.c
@@ -40,7 +40,7 @@ static struct msm_gem_submit *submit_create(struct drm_device *dev,
 	if (sz > SIZE_MAX)
 		return NULL;
 
-	submit = kmalloc(sz, GFP_TEMPORARY | __GFP_NOWARN | __GFP_NORETRY);
+	submit = kmalloc(sz, GFP_KERNEL | __GFP_NOWARN | __GFP_NORETRY);
 	if (!submit)
 		return NULL;
 
@@ -221,7 +221,7 @@ fail:
 	return ret;
 }
 
-static int submit_fence_sync(struct msm_gem_submit *submit)
+static int submit_fence_sync(struct msm_gem_submit *submit, bool no_implicit)
 {
 	int i, ret = 0;
 
@@ -229,6 +229,20 @@ static int submit_fence_sync(struct msm_gem_submit *submit)
 		struct msm_gem_object *msm_obj = submit->bos[i].obj;
 		bool write = submit->bos[i].flags & MSM_SUBMIT_BO_WRITE;
 
+		if (!write) {
+			/* NOTE: _reserve_shared() must happen before
+			 * _add_shared_fence(), which makes this a slightly
+			 * strange place to call it.  OTOH this is a
+			 * convenient can-fail point to hook it in.
+			 */
+			ret = reservation_object_reserve_shared(msm_obj->resv);
+			if (ret)
+				return ret;
+		}
+
+		if (no_implicit)
+			continue;
+
 		ret = msm_gem_sync_object(&msm_obj->base, submit->gpu->fctx, write);
 		if (ret)
 			break;
@@ -451,11 +465,9 @@ int msm_ioctl_gem_submit(struct drm_device *dev, void *data,
 	if (ret)
 		goto out;
 
-	if (!(args->flags & MSM_SUBMIT_NO_IMPLICIT)) {
-		ret = submit_fence_sync(submit);
-		if (ret)
-			goto out;
-	}
+	ret = submit_fence_sync(submit, !!(args->flags & MSM_SUBMIT_NO_IMPLICIT));
+	if (ret)
+		goto out;
 
 	ret = submit_pin_objects(submit);
 	if (ret)
diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index ffbff27600e0..6a887032c66a 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -718,7 +718,8 @@ void msm_gpu_cleanup(struct msm_gpu *gpu)
 			msm_gem_put_iova(gpu->rb->bo, gpu->aspace);
 		msm_ringbuffer_destroy(gpu->rb);
 	}
-	if (gpu->aspace) {
+
+	if (!IS_ERR_OR_NULL(gpu->aspace)) {
 		gpu->aspace->mmu->funcs->detach(gpu->aspace->mmu,
 			NULL, 0);
 		msm_gem_address_space_put(gpu->aspace);
diff --git a/drivers/gpu/drm/msm/msm_rd.c b/drivers/gpu/drm/msm/msm_rd.c
index 0366b8092f97..ec56794ad039 100644
--- a/drivers/gpu/drm/msm/msm_rd.c
+++ b/drivers/gpu/drm/msm/msm_rd.c
@@ -111,10 +111,14 @@ static void rd_write(struct msm_rd_state *rd, const void *buf, int sz)
 
 		wait_event(rd->fifo_event, circ_space(&rd->fifo) > 0);
 
+		/* Note that smp_load_acquire() is not strictly required
+		 * as CIRC_SPACE_TO_END() does not access the tail more
+		 * than once.
+		 */
 		n = min(sz, circ_space_to_end(&rd->fifo));
 		memcpy(fptr, ptr, n);
 
-		fifo->head = (fifo->head + n) & (BUF_SZ - 1);
+		smp_store_release(&fifo->head, (fifo->head + n) & (BUF_SZ - 1));
 		sz  -= n;
 		ptr += n;
 
@@ -145,13 +149,17 @@ static ssize_t rd_read(struct file *file, char __user *buf,
 	if (ret)
 		goto out;
 
+	/* Note that smp_load_acquire() is not strictly required
+	 * as CIRC_CNT_TO_END() does not access the head more than
+	 * once.
+	 */
 	n = min_t(int, sz, circ_count_to_end(&rd->fifo));
 	if (copy_to_user(buf, fptr, n)) {
 		ret = -EFAULT;
 		goto out;
 	}
 
-	fifo->tail = (fifo->tail + n) & (BUF_SZ - 1);
+	smp_store_release(&fifo->tail, (fifo->tail + n) & (BUF_SZ - 1));
 	*ppos += n;
 
 	wake_up_all(&rd->fifo_event);
diff --git a/drivers/gpu/drm/nouveau/dispnv04/cursor.c b/drivers/gpu/drm/nouveau/dispnv04/cursor.c
index f26e44ea7389..ebf860bd59af 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/cursor.c
+++ b/drivers/gpu/drm/nouveau/dispnv04/cursor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <drm/drmP.h>
 #include <drm/drm_mode.h>
 #include "nouveau_drv.h"
diff --git a/drivers/gpu/drm/nouveau/dispnv04/disp.h b/drivers/gpu/drm/nouveau/dispnv04/disp.h
index 74a8795c2c2b..f74f1f2b186e 100644
--- a/drivers/gpu/drm/nouveau/dispnv04/disp.h
+++ b/drivers/gpu/drm/nouveau/dispnv04/disp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV04_DISPLAY_H__
 #define __NV04_DISPLAY_H__
 #include <subdev/bios.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl0002.h b/drivers/gpu/drm/nouveau/include/nvif/cl0002.h
index 6d72ed38da32..1a8b45b4631f 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl0002.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl0002.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL0002_H__
 #define __NVIF_CL0002_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl0046.h b/drivers/gpu/drm/nouveau/include/nvif/cl0046.h
index a6a71f4ad91e..c0d5eba4f8fc 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl0046.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl0046.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL0046_H__
 #define __NVIF_CL0046_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl006b.h b/drivers/gpu/drm/nouveau/include/nvif/cl006b.h
index 309ab8a3d9e8..d0e8f35d9e92 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl006b.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl006b.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL006B_H__
 #define __NVIF_CL006B_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl0080.h b/drivers/gpu/drm/nouveau/include/nvif/cl0080.h
index 287a7d6fa480..2740278d226b 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl0080.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl0080.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL0080_H__
 #define __NVIF_CL0080_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl506e.h b/drivers/gpu/drm/nouveau/include/nvif/cl506e.h
index aa94b8cf9679..b4cd58093300 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl506e.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl506e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL506E_H__
 #define __NVIF_CL506E_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl506f.h b/drivers/gpu/drm/nouveau/include/nvif/cl506f.h
index 3b7101966de4..14d20c813cdb 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl506f.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl506f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL506F_H__
 #define __NVIF_CL506F_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl5070.h b/drivers/gpu/drm/nouveau/include/nvif/cl5070.h
index 542d95145a67..7cdf53615d7b 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl5070.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl5070.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL5070_H__
 #define __NVIF_CL5070_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl507a.h b/drivers/gpu/drm/nouveau/include/nvif/cl507a.h
index 12e0643b78bd..36e537218596 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl507a.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl507a.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL507A_H__
 #define __NVIF_CL507A_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl507b.h b/drivers/gpu/drm/nouveau/include/nvif/cl507b.h
index 99e9d8c47f60..3e643b752bfc 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl507b.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl507b.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL507B_H__
 #define __NVIF_CL507B_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl507c.h b/drivers/gpu/drm/nouveau/include/nvif/cl507c.h
index 6af70dbdfd9f..fd9e336d0a24 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl507c.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl507c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL507C_H__
 #define __NVIF_CL507C_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl507d.h b/drivers/gpu/drm/nouveau/include/nvif/cl507d.h
index 5ab0c9e4c6a3..e994c6894e3e 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl507d.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl507d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL507D_H__
 #define __NVIF_CL507D_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl507e.h b/drivers/gpu/drm/nouveau/include/nvif/cl507e.h
index c06209f3cac4..8082d2fde248 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl507e.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl507e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL507E_H__
 #define __NVIF_CL507E_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl826e.h b/drivers/gpu/drm/nouveau/include/nvif/cl826e.h
index 91e33db21a2f..36944ff09e3c 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl826e.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl826e.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL826E_H__
 #define __NVIF_CL826E_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl826f.h b/drivers/gpu/drm/nouveau/include/nvif/cl826f.h
index e34efd4ec537..df09a50817eb 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl826f.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl826f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL826F_H__
 #define __NVIF_CL826F_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl906f.h b/drivers/gpu/drm/nouveau/include/nvif/cl906f.h
index a2d5410a491b..6d16a3a2ec02 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl906f.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl906f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL906F_H__
 #define __NVIF_CL906F_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cl9097.h b/drivers/gpu/drm/nouveau/include/nvif/cl9097.h
index 4057676d2981..e4c8de6d00b7 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cl9097.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cl9097.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CL9097_H__
 #define __NVIF_CL9097_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/cla06f.h b/drivers/gpu/drm/nouveau/include/nvif/cla06f.h
index 2efa3d048bb9..597ebb52d5f9 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/cla06f.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/cla06f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CLA06F_H__
 #define __NVIF_CLA06F_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/class.h b/drivers/gpu/drm/nouveau/include/nvif/class.h
index d08da82ba7ed..e3a2ea8bde70 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/class.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/class.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CLASS_H__
 #define __NVIF_CLASS_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/client.h b/drivers/gpu/drm/nouveau/include/nvif/client.h
index b52a8eadce01..f5df8b30c599 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/client.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_CLIENT_H__
 #define __NVIF_CLIENT_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/device.h b/drivers/gpu/drm/nouveau/include/nvif/device.h
index bcb981711617..09439b037870 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/device.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_DEVICE_H__
 #define __NVIF_DEVICE_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/driver.h b/drivers/gpu/drm/nouveau/include/nvif/driver.h
index 0c6f48d8140a..93bccd45a042 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/driver.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_DRIVER_H__
 #define __NVIF_DRIVER_H__
 #include <nvif/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvif/event.h b/drivers/gpu/drm/nouveau/include/nvif/event.h
index 21764499b4be..ec5c924f576a 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/event.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_EVENT_H__
 #define __NVIF_EVENT_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0000.h b/drivers/gpu/drm/nouveau/include/nvif/if0000.h
index c2c0fc41e017..30ecd31db5df 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0000.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IF0000_H__
 #define __NVIF_IF0000_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0001.h b/drivers/gpu/drm/nouveau/include/nvif/if0001.h
index bd5b64125eed..ca9215262215 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0001.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0001.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IF0001_H__
 #define __NVIF_IF0001_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0002.h b/drivers/gpu/drm/nouveau/include/nvif/if0002.h
index c04c91d0b818..d9235c011196 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0002.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0002.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IF0002_H__
 #define __NVIF_IF0002_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0003.h b/drivers/gpu/drm/nouveau/include/nvif/if0003.h
index 0cd03efb80a1..ae30b8261b88 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0003.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0003.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IF0003_H__
 #define __NVIF_IF0003_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0004.h b/drivers/gpu/drm/nouveau/include/nvif/if0004.h
index bd5cd428cfd7..b35547c8ea36 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0004.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0004.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IF0004_H__
 #define __NVIF_IF0004_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/if0005.h b/drivers/gpu/drm/nouveau/include/nvif/if0005.h
index abfd373bb68b..8ed0ae101715 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/if0005.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/if0005.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IF0005_H__
 #define __NVIF_IF0005_H__
 #define NV10_NVSW_NTFY_UEVENT                                              0x00
diff --git a/drivers/gpu/drm/nouveau/include/nvif/ioctl.h b/drivers/gpu/drm/nouveau/include/nvif/ioctl.h
index c5f5eb83a594..688c4bcd9c64 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/ioctl.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_IOCTL_H__
 #define __NVIF_IOCTL_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/notify.h b/drivers/gpu/drm/nouveau/include/nvif/notify.h
index 51e2eb580809..4ed169230657 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/notify.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/notify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_NOTIFY_H__
 #define __NVIF_NOTIFY_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/object.h b/drivers/gpu/drm/nouveau/include/nvif/object.h
index 9e58b305b020..6912b8cffc98 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/object.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/object.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_OBJECT_H__
 #define __NVIF_OBJECT_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/os.h b/drivers/gpu/drm/nouveau/include/nvif/os.h
index 9fcab67c8557..6b16ab6b26d5 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/os.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/os.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_OS_H__
 #define __NOUVEAU_OS_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvif/unpack.h b/drivers/gpu/drm/nouveau/include/nvif/unpack.h
index 751bcf4930a7..7f0d9f6cc1e7 100644
--- a/drivers/gpu/drm/nouveau/include/nvif/unpack.h
+++ b/drivers/gpu/drm/nouveau/include/nvif/unpack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVIF_UNPACK_H__
 #define __NVIF_UNPACK_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/client.h b/drivers/gpu/drm/nouveau/include/nvkm/core/client.h
index e876634da10a..ca23230d5743 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/client.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CLIENT_H__
 #define __NVKM_CLIENT_H__
 #define nvkm_client(p) container_of((p), struct nvkm_client, object)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/debug.h b/drivers/gpu/drm/nouveau/include/nvkm/core/debug.h
index c59fd4e2ad5e..966d1822dd80 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/debug.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEBUG_H__
 #define __NVKM_DEBUG_H__
 #define NV_DBG_FATAL    0
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/device.h b/drivers/gpu/drm/nouveau/include/nvkm/core/device.h
index bb4c214f1046..d7ecb65ba19f 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/device.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVICE_H__
 #define __NVKM_DEVICE_H__
 #include <core/event.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/engine.h b/drivers/gpu/drm/nouveau/include/nvkm/core/engine.h
index d4cd2fbfde88..c6bcd8a64cae 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/engine.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/engine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_ENGINE_H__
 #define __NVKM_ENGINE_H__
 #define nvkm_engine(p) container_of((p), struct nvkm_engine, subdev)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h b/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h
index 40429a82f792..38acbde2de4f 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/enum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_ENUM_H__
 #define __NVKM_ENUM_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/event.h b/drivers/gpu/drm/nouveau/include/nvkm/core/event.h
index b98fe2de546a..d3c45e90a1c1 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/event.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_EVENT_H__
 #define __NVKM_EVENT_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/firmware.h b/drivers/gpu/drm/nouveau/include/nvkm/core/firmware.h
index a626ce378f04..ff0fa38aee72 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/firmware.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/firmware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FIRMWARE_H__
 #define __NVKM_FIRMWARE_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/gpuobj.h b/drivers/gpu/drm/nouveau/include/nvkm/core/gpuobj.h
index c23da4f05929..473ba0b9a368 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/gpuobj.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/gpuobj.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GPUOBJ_H__
 #define __NVKM_GPUOBJ_H__
 #include <core/object.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/ioctl.h b/drivers/gpu/drm/nouveau/include/nvkm/core/ioctl.h
index 88971eb37afa..e2d39192fa26 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/ioctl.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_IOCTL_H__
 #define __NVKM_IOCTL_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h b/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
index 33ca6769266a..affba21fcbad 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MEMORY_H__
 #define __NVKM_MEMORY_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h b/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h
index 7bd4897a8a2a..2002a4da9999 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MM_H__
 #define __NVKM_MM_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/notify.h b/drivers/gpu/drm/nouveau/include/nvkm/core/notify.h
index 753d08c1767b..4eb82bc563f3 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/notify.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/notify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_NOTIFY_H__
 #define __NVKM_NOTIFY_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/object.h b/drivers/gpu/drm/nouveau/include/nvkm/core/object.h
index 96dda350ada3..3f13ff1d4ee4 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/object.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/object.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_OBJECT_H__
 #define __NVKM_OBJECT_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/oproxy.h b/drivers/gpu/drm/nouveau/include/nvkm/core/oproxy.h
index bd52236cc2f4..d950d5ee188b 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/oproxy.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/oproxy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_OPROXY_H__
 #define __NVKM_OPROXY_H__
 #define nvkm_oproxy(p) container_of((p), struct nvkm_oproxy, base)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/option.h b/drivers/gpu/drm/nouveau/include/nvkm/core/option.h
index 80fdc146e816..a34a79bacbd0 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/option.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/option.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_OPTION_H__
 #define __NVKM_OPTION_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/os.h b/drivers/gpu/drm/nouveau/include/nvkm/core/os.h
index cd57e238ddd3..fc9e8cd36087 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/os.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/os.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_OS_H__
 #define __NVKM_OS_H__
 #include <nvif/os.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/pci.h b/drivers/gpu/drm/nouveau/include/nvkm/core/pci.h
index 78d41be20b8c..4c7f647d2dc9 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/pci.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVICE_PCI_H__
 #define __NVKM_DEVICE_PCI_H__
 #include <core/device.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/ramht.h b/drivers/gpu/drm/nouveau/include/nvkm/core/ramht.h
index 5ee6298991e2..674a38408240 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/ramht.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/ramht.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_RAMHT_H__
 #define __NVKM_RAMHT_H__
 #include <core/gpuobj.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h b/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h
index ca9ed3d68f44..38f51ff7ab40 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/subdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SUBDEV_H__
 #define __NVKM_SUBDEV_H__
 #include <core/device.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/core/tegra.h b/drivers/gpu/drm/nouveau/include/nvkm/core/tegra.h
index 7c7d91cad09a..5c102d0206a7 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/core/tegra.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/core/tegra.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVICE_TEGRA_H__
 #define __NVKM_DEVICE_TEGRA_H__
 #include <core/device.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/bsp.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/bsp.h
index 904820558fc0..40613983fccb 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/bsp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/bsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BSP_H__
 #define __NVKM_BSP_H__
 #include <engine/xtensa.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/ce.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/ce.h
index b93f4c1a95e5..553245994450 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/ce.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/ce.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CE_H__
 #define __NVKM_CE_H__
 #include <engine/falcon.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/cipher.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/cipher.h
index 03fa57a7c30a..72b9da2de7c2 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/cipher.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/cipher.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CIPHER_H__
 #define __NVKM_CIPHER_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/disp.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/disp.h
index 05f9c13ab8c3..e83193d3ccab 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/disp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/disp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_H__
 #define __NVKM_DISP_H__
 #define nvkm_disp(p) container_of((p), struct nvkm_disp, engine)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/dma.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/dma.h
index d2a6532ce3b9..5f5cae7c474e 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/dma.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DMA_H__
 #define __NVKM_DMA_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h
index e1a854e2ade1..5a51842bc241 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/falcon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FALCON_H__
 #define __NVKM_FALCON_H__
 #define nvkm_falcon(p) container_of((p), struct nvkm_falcon, engine)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
index f00527b36acc..025f400c9f5d 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/fifo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FIFO_H__
 #define __NVKM_FIFO_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/gr.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/gr.h
index c7944b19bed8..fb18f105fc43 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/gr.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/gr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GR_H__
 #define __NVKM_GR_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/mpeg.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/mpeg.h
index 257738eff9f6..4ef3d4c5e358 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/mpeg.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/mpeg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MPEG_H__
 #define __NVKM_MPEG_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/msenc.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/msenc.h
index 748ea9b7e559..985fc9490643 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/msenc.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/msenc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSENC_H__
 #define __NVKM_MSENC_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/mspdec.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/mspdec.h
index 08516ca82e04..e03f33472486 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/mspdec.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/mspdec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSPDEC_H__
 #define __NVKM_MSPDEC_H__
 #include <engine/falcon.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/msppp.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/msppp.h
index 85fd306021ac..760bf17ea63d 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/msppp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/msppp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSPPP_H__
 #define __NVKM_MSPPP_H__
 #include <engine/falcon.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/msvld.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/msvld.h
index 99757ed96f76..281866d2501d 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/msvld.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/msvld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSVLD_H__
 #define __NVKM_MSVLD_H__
 #include <engine/falcon.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/nvdec.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/nvdec.h
index 00b2b227ff41..fe716859d4a9 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/nvdec.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/nvdec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_NVDEC_H__
 #define __NVKM_NVDEC_H__
 #define nvkm_nvdec(p) container_of((p), struct nvkm_nvdec, engine)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/nvenc.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/nvenc.h
index 8a819328059b..cdd68a8bab8b 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/nvenc.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/nvenc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_NVENC_H__
 #define __NVKM_NVENC_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/pm.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/pm.h
index 240855ad8c8d..6cce8502f9df 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/pm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/pm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PM_H__
 #define __NVKM_PM_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/sec.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/sec.h
index 7317ef4c0207..b206b918c43e 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/sec.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/sec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SEC_H__
 #define __NVKM_SEC_H__
 #include <engine/falcon.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h
index d3db1b1e75c4..f7d89822b905 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/sec2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SEC2_H__
 #define __NVKM_SEC2_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/sw.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/sw.h
index 096e7dbd1e65..83a17c4e11e7 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/sw.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/sw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SW_H__
 #define __NVKM_SW_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/vic.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/vic.h
index 2b0dc4c695c2..9b7d4877cf41 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/vic.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/vic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_VIC_H__
 #define __NVKM_VIC_H__
 #include <core/engine.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/vp.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/vp.h
index 616ea91e03f8..53bf8aed48fb 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/vp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/vp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_VP_H__
 #define __NVKM_VP_H__
 #include <engine/xtensa.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/engine/xtensa.h b/drivers/gpu/drm/nouveau/include/nvkm/engine/xtensa.h
index b1fcc416732f..13c00ce6d556 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/engine/xtensa.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/engine/xtensa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_XTENSA_H__
 #define __NVKM_XTENSA_H__
 #define nvkm_xtensa(p) container_of((p), struct nvkm_xtensa, engine)
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h
index d3071b5a4f98..91f1e0efe061 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BAR_H__
 #define __NVKM_BAR_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios.h
index a72f3290528a..979e9a144e7b 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BIOS_H__
 #define __NVKM_BIOS_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0203.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0203.h
index cf202c793a1d..703a5b524b96 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0203.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0203.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_M0203_H__
 #define __NVBIOS_M0203_H__
 struct nvbios_M0203T {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0205.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0205.h
index d34608ff241e..b4e14e45a0e8 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0205.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0205.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_M0205_H__
 #define __NVBIOS_M0205_H__
 struct nvbios_M0205T {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0209.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0209.h
index c7ff8d9526e7..c09376894d12 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0209.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/M0209.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_M0209_H__
 #define __NVBIOS_M0209_H__
 u32 nvbios_M0209Te(struct nvkm_bios *,
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/P0260.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/P0260.h
index 1c1c52eac97d..901d94ef11b8 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/P0260.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/P0260.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_P0260_H__
 #define __NVBIOS_P0260_H__
 u32 nvbios_P0260Te(struct nvkm_bios *,
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bit.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bit.h
index 6711732b7cb1..d068586f3263 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bit.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_BIT_H__
 #define __NVBIOS_BIT_H__
 struct bit_entry {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bmp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bmp.h
index 3f0c7c414026..9a3f9483ee75 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bmp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/bmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_BMP_H__
 #define __NVBIOS_BMP_H__
 static inline u16
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/boost.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/boost.h
index 2ff64a20c0ec..a1c48c6b223b 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/boost.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/boost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_BOOST_H__
 #define __NVBIOS_BOOST_H__
 u32 nvbios_boostTe(struct nvkm_bios *, u8 *, u8 *, u8 *, u8 *, u8 *, u8 *);
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h
index deb477282dde..ed9e0a6a0011 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/conn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_CONN_H__
 #define __NVBIOS_CONN_H__
 enum dcb_connector_type {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/cstep.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/cstep.h
index 76fe7d50a1ce..49343d276e11 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/cstep.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/cstep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_CSTEP_H__
 #define __NVBIOS_CSTEP_H__
 u32 nvbios_cstepTe(struct nvkm_bios *,
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h
index 903d117603d8..63ddc6ed897a 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dcb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_DCB_H__
 #define __NVBIOS_DCB_H__
 enum dcb_output_type {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h
index c5a6ebd5a478..423d92de0aae 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/disp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_DISP_H__
 #define __NVBIOS_DISP_H__
 u16 nvbios_disp_table(struct nvkm_bios *,
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dp.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dp.h
index b4d39df70d4e..df34b41838d6 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dp.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/dp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_DP_H__
 #define __NVBIOS_DP_H__
 struct nvbios_dpout {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/extdev.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/extdev.h
index bb49bd5f879e..f93e4f951f2f 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/extdev.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/extdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_EXTDEV_H__
 #define __NVBIOS_EXTDEV_H__
 enum nvbios_extdev_type {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/fan.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/fan.h
index a7513e8406a3..09c1d3b9d009 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/fan.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/fan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_FAN_H__
 #define __NVBIOS_FAN_H__
 #include <subdev/bios/therm.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h
index b7a54e605469..b71a3555c64e 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_GPIO_H__
 #define __NVBIOS_GPIO_H__
 enum dcb_gpio_func_name {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h
index 85c529ecf9b1..ae1f7483dd28 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_I2C_H__
 #define __NVBIOS_I2C_H__
 enum dcb_i2c_type {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/iccsense.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/iccsense.h
index e933d3eede70..e220a1ac1387 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/iccsense.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/iccsense.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_ICCSENSE_H__
 #define __NVBIOS_ICCSENSE_H__
 struct pwr_rail_resistor_t {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/image.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/image.h
index e15d63b9a5eb..893288b060de 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/image.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/image.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_IMAGE_H__
 #define __NVBIOS_IMAGE_H__
 struct nvbios_image {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/init.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/init.h
index 06ab48052128..744b1868e789 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/init.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_INIT_H__
 #define __NVBIOS_INIT_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/mxm.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/mxm.h
index 4e31b64c5edf..327bf9c4b703 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/mxm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/mxm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_MXM_H__
 #define __NVBIOS_MXM_H__
 u16 mxm_table(struct nvkm_bios *, u8 *ver, u8 *hdr);
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/npde.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/npde.h
index 64a59549b7ea..ee5419b7b45b 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/npde.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/npde.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_NPDE_H__
 #define __NVBIOS_NPDE_H__
 struct nvbios_npdeT {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pcir.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pcir.h
index e85931541f4f..1dffe8d6cc81 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pcir.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pcir.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_PCIR_H__
 #define __NVBIOS_PCIR_H__
 struct nvbios_pcirT {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/perf.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/perf.h
index 478b1c0d2089..0ee84ea6d737 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/perf.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_PERF_H__
 #define __NVBIOS_PERF_H__
 u32 nvbios_perf_table(struct nvkm_bios *, u8 *ver, u8 *hdr,
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pll.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pll.h
index 5a69978d1e3b..ab964e085f02 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pll.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_PLL_H__
 #define __NVBIOS_PLL_H__
 /*XXX: kill me */
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pmu.h
index 3a643df6de04..fb41ecab8f8c 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pmu.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_PMU_H__
 #define __NVBIOS_PMU_H__
 struct nvbios_pmuT {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/power_budget.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/power_budget.h
index f5f4a14c4030..ff12d810dce3 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/power_budget.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/power_budget.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_POWER_BUDGET_H__
 #define __NVBIOS_POWER_BUDGET_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/ramcfg.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/ramcfg.h
index dca6c060a24f..2b87a38adb7a 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/ramcfg.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/ramcfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_RAMCFG_H__
 #define __NVBIOS_RAMCFG_H__
 struct nvbios_ramcfg {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/rammap.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/rammap.h
index 8d8ee13721ec..471eef434b51 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/rammap.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/rammap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_RAMMAP_H__
 #define __NVBIOS_RAMMAP_H__
 #include <subdev/bios/ramcfg.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/therm.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/therm.h
index dd3ba960e75d..46a3b15e10ec 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/therm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/therm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_THERM_H__
 #define __NVBIOS_THERM_H__
 struct nvbios_therm_threshold {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/timing.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/timing.h
index 38188d4c9ab5..40ceabf37827 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/timing.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/timing.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_TIMING_H__
 #define __NVBIOS_TIMING_H__
 #include <subdev/bios/ramcfg.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vmap.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vmap.h
index bea31cdd1dd1..67419bad584c 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vmap.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_VMAP_H__
 #define __NVBIOS_VMAP_H__
 struct nvbios_vmap {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/volt.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/volt.h
index f0baa2c7de09..6b36d5ecb8f9 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/volt.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/volt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_VOLT_H__
 #define __NVBIOS_VOLT_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h
index 87f804fc3a88..36f3028d58ef 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_VPSTATE_H__
 #define __NVBIOS_VPSTATE_H__
 struct nvbios_vpstate_header {
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/xpio.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/xpio.h
index 0c0fe234ff12..d1bb5d044585 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/xpio.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/xpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVBIOS_XPIO_H__
 #define __NVBIOS_XPIO_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h
index 33a057c334f2..7695f7f77a06 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BUS_H__
 #define __NVKM_BUS_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/clk.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/clk.h
index e5275f742977..15db75ef0189 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/clk.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CLK_H__
 #define __NVKM_CLK_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/devinit.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/devinit.h
index 709d786f1808..40558064d589 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/devinit.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/devinit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVINIT_H__
 #define __NVKM_DEVINIT_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h
index 28d513fbf44c..4da68dd52619 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FB_H__
 #define __NVKM_FB_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fuse.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fuse.h
index ae201e388487..092193b7f98e 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/fuse.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/fuse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FUSE_H__
 #define __NVKM_FUSE_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gpio.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gpio.h
index 9b9c6d2f90b6..ee54899076e3 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/gpio.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GPIO_H__
 #define __NVKM_GPIO_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
index ce23cc6c672e..eef54e9b5d77 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_I2C_H__
 #define __NVKM_I2C_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
index 6e2b70bd2f41..919653c1d101 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/ibus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_IBUS_H__
 #define __NVKM_IBUS_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h
index b7a9b041e130..be9475cd94fd 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/iccsense.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_ICCSENSE_H__
 #define __NVKM_ICCSENSE_H__
 
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/instmem.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/instmem.h
index 40f845e31272..91126fd29222 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/instmem.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/instmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_INSTMEM_H__
 #define __NVKM_INSTMEM_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/ltc.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/ltc.h
index cd755baf9cab..63b7ad1f9ce2 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/ltc.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/ltc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_LTC_H__
 #define __NVKM_LTC_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mc.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mc.h
index 58f10890c3b6..61c93c86e2e2 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mc.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MC_H__
 #define __NVKM_MC_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h
index dcd3deff27a4..0fdfc610ceb3 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MMU_H__
 #define __NVKM_MMU_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mxm.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mxm.h
index ed0250139dae..0fd6d6f8eada 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/mxm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/mxm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MXM_H__
 #define __NVKM_MXM_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pci.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pci.h
index ac2a695963c1..23803cc859fd 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pci.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PCI_H__
 #define __NVKM_PCI_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
index e7f04732a425..4bc9384046c6 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PMU_H__
 #define __NVKM_PMU_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
index 1bfd93b85575..98fe1d0fd592 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/therm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_THERM_H__
 #define __NVKM_THERM_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h
index ff0709652f80..e9b0746826ca 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_TIMER_H__
 #define __NVKM_TIMER_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
index d23209b62c25..f7d3eb647e2e 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/top.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_TOP_H__
 #define __NVKM_TOP_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/vga.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/vga.h
index ce5636fe2a66..312933ad7c2b 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/vga.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_VGA_H__
 #define __NOUVEAU_VGA_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h b/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
index 08ef9983c643..8a0f85f5fc1a 100644
--- a/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
+++ b/drivers/gpu/drm/nouveau/include/nvkm/subdev/volt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_VOLT_H__
 #define __NVKM_VOLT_H__
 #include <core/subdev.h>
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.h b/drivers/gpu/drm/nouveau/nouveau_abi16.h
index 841cc556fad8..441100aa2320 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.h
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_ABI16_H__
 #define __NOUVEAU_ABI16_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index 7459ef9943ec..5ffcb6683776 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci.h>
 #include <linux/acpi.h>
 #include <linux/slab.h>
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.h b/drivers/gpu/drm/nouveau/nouveau_acpi.h
index 2f03653aff86..b86294fc99e8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.h
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_ACPI_H__
 #define __NOUVEAU_ACPI_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.h b/drivers/gpu/drm/nouveau/nouveau_bo.h
index b06a5385d6dd..4caade5dee50 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.h
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_BO_H__
 #define __NOUVEAU_BO_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.h b/drivers/gpu/drm/nouveau/nouveau_chan.h
index 46b947ba1cf4..9463a78613cb 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.h
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_CHAN_H__
 #define __NOUVEAU_CHAN_H__
 #include <nvif/object.h>
diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.h b/drivers/gpu/drm/nouveau/nouveau_debugfs.h
index b799f8dfb2b2..1d01a82d4b6f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.h
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_DEBUGFS_H__
 #define __NOUVEAU_DEBUGFS_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.h b/drivers/gpu/drm/nouveau/nouveau_display.h
index 201aec2ea5b8..34cd144681b9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.h
+++ b/drivers/gpu/drm/nouveau/nouveau_display.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_DISPLAY_H__
 #define __NOUVEAU_DISPLAY_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 822fe1d4d35e..77dea95c1bf1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_DRV_H__
 #define __NOUVEAU_DRV_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index f7707849bb53..2b12d82aac15 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -223,7 +223,7 @@ void
 nouveau_fbcon_accel_save_disable(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	if (drm->fbcon) {
+	if (drm->fbcon && drm->fbcon->helper.fbdev) {
 		drm->fbcon->saved_flags = drm->fbcon->helper.fbdev->flags;
 		drm->fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
 	}
@@ -233,7 +233,7 @@ void
 nouveau_fbcon_accel_restore(struct drm_device *dev)
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
-	if (drm->fbcon) {
+	if (drm->fbcon && drm->fbcon->helper.fbdev) {
 		drm->fbcon->helper.fbdev->flags = drm->fbcon->saved_flags;
 	}
 }
@@ -245,7 +245,8 @@ nouveau_fbcon_accel_fini(struct drm_device *dev)
 	struct nouveau_fbdev *fbcon = drm->fbcon;
 	if (fbcon && drm->channel) {
 		console_lock();
-		fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
+		if (fbcon->helper.fbdev)
+			fbcon->helper.fbdev->flags |= FBINFO_HWACCEL_DISABLED;
 		console_unlock();
 		nouveau_channel_idle(drm->channel);
 		nvif_object_fini(&fbcon->twod);
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.h b/drivers/gpu/drm/nouveau/nouveau_fence.h
index d5e58a38f160..c9b399ad89e6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.h
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_FENCE_H__
 #define __NOUVEAU_FENCE_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.h b/drivers/gpu/drm/nouveau/nouveau_gem.h
index 8fa6ed9ddd3a..0456c94a5d4d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.h
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_GEM_H__
 #define __NOUVEAU_GEM_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_ioctl.h b/drivers/gpu/drm/nouveau/nouveau_ioctl.h
index 3b9f2e5463a7..380ede26806c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ioctl.h
+++ b/drivers/gpu/drm/nouveau/nouveau_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_IOCTL_H__
 #define __NOUVEAU_IOCTL_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_reg.h b/drivers/gpu/drm/nouveau/nouveau_reg.h
index 7226f1f60901..b5b5fe40779d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_reg.h
+++ b/drivers/gpu/drm/nouveau/nouveau_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #define NV04_PFB_BOOT_0						0x00100000
 #	define NV04_PFB_BOOT_0_RAM_AMOUNT			0x00000003
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index b7ab268f7d6f..fde11ce466e4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pagemap.h>
 #include <linux/slab.h>
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.h b/drivers/gpu/drm/nouveau/nouveau_ttm.h
index 25b0de413352..96082b696420 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_TTM_H__
 #define __NOUVEAU_TTM_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_usif.h b/drivers/gpu/drm/nouveau/nouveau_usif.h
index c037e3ae8c70..c68f1c65af3b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_usif.h
+++ b/drivers/gpu/drm/nouveau/nouveau_usif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_USIF_H__
 #define __NOUVEAU_USIF_H__
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.c b/drivers/gpu/drm/nouveau/nouveau_vga.c
index 48393a4f6331..52e52a360fb1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/vgaarb.h>
 #include <linux/vga_switcheroo.h>
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_vga.h b/drivers/gpu/drm/nouveau/nouveau_vga.h
index ea3ad6974c65..6a3000c88142 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vga.h
+++ b/drivers/gpu/drm/nouveau/nouveau_vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NOUVEAU_VGA_H__
 #define __NOUVEAU_VGA_H__
 
diff --git a/drivers/gpu/drm/nouveau/nv10_fence.h b/drivers/gpu/drm/nouveau/nv10_fence.h
index b7a508585304..7616c66803f8 100644
--- a/drivers/gpu/drm/nouveau/nv10_fence.h
+++ b/drivers/gpu/drm/nouveau/nv10_fence.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV10_FENCE_H_
 #define __NV10_FENCE_H_
 
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 2dbf62a2ac41..fb47d46050ec 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -3265,11 +3265,14 @@ nv50_mstm = {
 void
 nv50_mstm_service(struct nv50_mstm *mstm)
 {
-	struct drm_dp_aux *aux = mstm->mgr.aux;
+	struct drm_dp_aux *aux = mstm ? mstm->mgr.aux : NULL;
 	bool handled = true;
 	int ret;
 	u8 esi[8] = {};
 
+	if (!aux)
+		return;
+
 	while (handled) {
 		ret = drm_dp_dpcd_read(aux, DP_SINK_COUNT_ESI, esi, 8);
 		if (ret != 8) {
@@ -4096,7 +4099,7 @@ nv50_disp_atomic_commit(struct drm_device *dev,
 {
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nv50_disp *disp = nv50_disp(dev);
-	struct drm_plane_state *old_plane_state;
+	struct drm_plane_state *new_plane_state;
 	struct drm_plane *plane;
 	struct drm_crtc *crtc;
 	bool active = false;
@@ -4126,8 +4129,8 @@ nv50_disp_atomic_commit(struct drm_device *dev,
 	if (ret)
 		goto err_cleanup;
 
-	for_each_old_plane_in_state(state, plane, old_plane_state, i) {
-		struct nv50_wndw_atom *asyw = nv50_wndw_atom(old_plane_state);
+	for_each_new_plane_in_state(state, plane, new_plane_state, i) {
+		struct nv50_wndw_atom *asyw = nv50_wndw_atom(new_plane_state);
 		struct nv50_wndw *wndw = nv50_wndw(plane);
 
 		if (asyw->set.image) {
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c b/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
index 8e2e24a74774..44e116f7880d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
@@ -39,5 +39,5 @@ int
 g84_bsp_new(struct nvkm_device *device, int index, struct nvkm_engine **pengine)
 {
 	return nvkm_xtensa_new_(&g84_bsp, device, index,
-				true, 0x103000, pengine);
+				device->chipset != 0x92, 0x103000, pengine);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gf100.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gf100.fuc3.h
index d9ca9636a3e3..da130f5058e5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gf100.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gf100.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf100_ce_data[] = {
 /* 0x0000: ctx_object */
 	0x00000000,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gt215.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gt215.fuc3.h
index f0a1cf31c7ca..0b92eb32598d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gt215.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/ce/fuc/gt215.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gt215_ce_data[] = {
 /* 0x0000: ctx_object */
 	0x00000000,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/ce/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/ce/priv.h
index 2dce405976ad..0e3d08f11b0b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/ce/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/ce/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CE_PRIV_H__
 #define __NVKM_CE_PRIV_H__
 #include <engine/ce.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.h b/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.h
index 1bbe76e0740a..6a62021e9861 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/acpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVICE_ACPI_H__
 #define __NVKM_DEVICE_ACPI_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.h b/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.h
index 20249d8e444d..f279162f48c6 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVICE_CTRL_H__
 #define __NVKM_DEVICE_CTRL_H__
 #define nvkm_control(p) container_of((p), struct nvkm_control, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h
index 6c16f3835f44..08d0bf605722 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVICE_PRIV_H__
 #define __NVKM_DEVICE_PRIV_H__
 #include <core/device.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
index 737b38f6fbd2..5701b3221a54 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/channv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_DISP_CHAN_H__
 #define __NV50_DISP_CHAN_H__
 #define nv50_disp_chan(p) container_of((p), struct nv50_disp_chan, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.h
index de962b7b026d..090e869ae612 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/conn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_CONN_H__
 #define __NVKM_DISP_CONN_H__
 #include <engine/disp.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.h
index ea4a0d062e31..f9b98211da6a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dmacnv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_DISP_DMAC_H__
 #define __NV50_DISP_DMAC_H__
 #define nv50_disp_dmac(p) container_of((p), struct nv50_disp_dmac, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h
index 59173c290525..495f665a0ee6 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/dp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_DP_H__
 #define __NVKM_DISP_DP_H__
 #define nvkm_dp(p) container_of((p), struct nvkm_dp, outp)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c
index e82c68f18444..d131cca999dd 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "hdmi.h"
 
 void pack_hdmi_infoframe(struct packed_hdmi_infoframe *packed_frame,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.h
index 528f5621a496..45094c6e1425 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/hdmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_HDMI_H__
 #define __NVKM_DISP_HDMI_H__
 #include "ior.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/head.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/head.h
index b04c49d2eeeb..57030b3a4a75 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/head.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_HEAD_H__
 #define __NVKM_DISP_HEAD_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
index a1e8bf48b778..cd6dd8742dc6 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/ior.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_IOR_H__
 #define __NVKM_DISP_IOR_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
index 6ea19466f436..eb0b8acb1c5b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_DISP_H__
 #define __NV50_DISP_H__
 #define nv50_disp(p) container_of((p), struct nv50_disp, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h
index 146d101d4891..ea84d7d5741a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/outp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_OUTP_H__
 #define __NVKM_DISP_OUTP_H__
 #include <engine/disp.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/priv.h
index 5772f0094129..6c9bfff6d043 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DISP_PRIV_H__
 #define __NVKM_DISP_PRIV_H__
 #include <engine/disp.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.h
index b147cf5b3518..4818fa69ae6c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/rootnv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_DISP_ROOT_H__
 #define __NV50_DISP_ROOT_H__
 #define nv50_disp_root(p) container_of((p), struct nv50_disp_root, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h
index deb37ee55c0b..4307cbecd5c5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DMA_PRIV_H__
 #define __NVKM_DMA_PRIV_H__
 #define nvkm_dma(p) container_of((p), struct nvkm_dma, engine)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h b/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h
index 69a7f1034024..4bbac8a21c71 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/dma/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DMA_USER_H__
 #define __NVKM_DMA_USER_H__
 #define nvkm_dmaobj(p) container_of((p), struct nvkm_dmaobj, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h
index d8019bdacd61..3ffef236189e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/chan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FIFO_CHAN_H__
 #define __NVKM_FIFO_CHAN_H__
 #define nvkm_fifo_chan(p) container_of((p), struct nvkm_fifo_chan, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changf100.h
index 7d697e2dce1a..27002caba420 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changf100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GF100_FIFO_CHAN_H__
 #define __GF100_FIFO_CHAN_H__
 #define gf100_fifo_chan(p) container_of((p), struct gf100_fifo_chan, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h
index 230f64e5f731..ec10be2984a9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/changk104.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GK104_FIFO_CHAN_H__
 #define __GK104_FIFO_CHAN_H__
 #define gk104_fifo_chan(p) container_of((p), struct gk104_fifo_chan, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h
index 3361a1fd0343..15b06bdf5067 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV04_FIFO_CHAN_H__
 #define __NV04_FIFO_CHAN_H__
 #define nv04_fifo_chan(p) container_of((p), struct nv04_fifo_chan, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.h
index 4b9da469b704..ad9aa157e078 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/channv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_FIFO_CHAN_H__
 #define __NV50_FIFO_CHAN_H__
 #define nv50_fifo_chan(p) container_of((p), struct nv50_fifo_chan, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.h
index 70db58eab9c3..571a6edb3f97 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gf100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GF100_FIFO_H__
 #define __GF100_FIFO_H__
 #define gf100_fifo(p) container_of((p), struct gf100_fifo, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h
index 44bff98d6725..0506c5290936 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/gk104.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GK104_FIFO_H__
 #define __GK104_FIFO_H__
 #define gk104_fifo(p) container_of((p), struct gk104_fifo, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.h
index 03f60004bf7c..1d70542553cc 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV04_FIFO_H__
 #define __NV04_FIFO_H__
 #define nv04_fifo(p) container_of((p), struct nv04_fifo, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.h
index 8ab53948cbb4..a3994e8db462 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_FIFO_H__
 #define __NV50_FIFO_H__
 #define nv50_fifo(p) container_of((p), struct nv50_fifo, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h
index f889b13b5e41..ae76b1aaccd4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FIFO_PRIV_H__
 #define __NVKM_FIFO_PRIV_H__
 #define nvkm_fifo(p) container_of((p), struct nvkm_fifo, engine)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/regsnv04.h b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/regsnv04.h
index 92d56221197b..49892a5e7201 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/regsnv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/regsnv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV04_FIFO_REGS_H__
 #define __NV04_FIFO_REGS_H__
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h
index 017180d147cf..2812ca511c9c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GRCTX_NVC0_H__
 #define __NVKM_GRCTX_NVC0_H__
 #include "gf100.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxnv40.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxnv40.h
index 50e808e9f926..4d67d90261b8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxnv40.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxnv40.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GRCTX_H__
 #define __NVKM_GRCTX_H__
 #include <core/gpuobj.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf100.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf100.fuc3.h
index 12a703fe355d..0323acb739c8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf100.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf100.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf100_grgpc_data[] = {
 /* 0x0000: gpc_mmio_list_head */
 	0x00000064,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf117.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf117.fuc3.h
index ffbfc51200f1..1bb265917915 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf117.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgf117.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf117_grgpc_data[] = {
 /* 0x0000: gpc_mmio_list_head */
 	0x0000006c,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk104.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk104.fuc3.h
index 357f662de571..cf8343a693ba 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk104.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk104.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk104_grgpc_data[] = {
 /* 0x0000: gpc_mmio_list_head */
 	0x0000006c,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk110.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk110.fuc3.h
index 4ffc8212a85c..f4bfa109ed27 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk110.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk110.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk110_grgpc_data[] = {
 /* 0x0000: gpc_mmio_list_head */
 	0x0000006c,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk208.fuc5.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk208.fuc5.h
index 09196206c9bc..59a3e1b2927f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk208.fuc5.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgk208.fuc5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk208_grgpc_data[] = {
 /* 0x0000: gpc_mmio_list_head */
 	0x0000006c,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgm107.fuc5.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgm107.fuc5.h
index 6d7d004363d9..8daa0516704a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgm107.fuc5.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/gpcgm107.fuc5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gm107_grgpc_data[] = {
 /* 0x0000: gpc_mmio_list_head */
 	0x0000006c,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf100.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf100.fuc3.h
index 7538404b8b13..cbf2351f8da8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf100.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf100.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf100_grhub_data[] = {
 /* 0x0000: hub_mmio_list_head */
 	0x00000300,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf117.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf117.fuc3.h
index ce000a47ec6d..70830036ffee 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf117.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgf117.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf117_grhub_data[] = {
 /* 0x0000: hub_mmio_list_head */
 	0x00000300,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk104.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk104.fuc3.h
index 1f26cb6a233c..7f2fd84d0c3a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk104.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk104.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk104_grhub_data[] = {
 /* 0x0000: hub_mmio_list_head */
 	0x00000300,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk110.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk110.fuc3.h
index 70436d93efe3..560063789de8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk110.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk110.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk110_grhub_data[] = {
 /* 0x0000: hub_mmio_list_head */
 	0x00000300,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk208.fuc5.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk208.fuc5.h
index e0933a07426a..71e85784b615 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk208.fuc5.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgk208.fuc5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk208_grhub_data[] = {
 /* 0x0000: hub_mmio_list_head */
 	0x00000300,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgm107.fuc5.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgm107.fuc5.h
index 9b432823bcbe..d85eac6d1c61 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgm107.fuc5.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/hubgm107.fuc5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gm107_grhub_data[] = {
 /* 0x0000: hub_mmio_list_head */
 	0x00000300,
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/os.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/os.h
index 1718ae4e8224..f87693809c9f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/os.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/fuc/os.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GRAPH_OS_H__
 #define __NVKM_GRAPH_OS_H__
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv10.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv10.h
index d7c3d86cc99d..d5a376c4dd0b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv10.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV10_GR_H__
 #define __NV10_GR_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.c
index d1dc92999dc0..df2cd864147c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "nv20.h"
 #include "regs.h"
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.h
index cdf4501e3798..ad7e53bb7c23 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV20_GR_H__
 #define __NV20_GR_H__
 #define nv20_gr(p) container_of((p), struct nv20_gr, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv25.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv25.c
index 6c4a00819b4b..e59a28a26d65 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv25.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv25.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "nv20.h"
 #include "regs.h"
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv2a.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv2a.c
index 3cad26dbc2b1..e113b2d4c811 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv2a.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv2a.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "nv20.h"
 #include "regs.h"
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c
index b4e3c50badc7..4aac2c224874 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv30.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "nv20.h"
 #include "regs.h"
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c
index e7ed04b935cd..301556503e93 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv34.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "nv20.h"
 #include "regs.h"
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv35.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv35.c
index 5e8abacbacc6..5d6926611a5b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv35.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv35.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "nv20.h"
 #include "regs.h"
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv40.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv40.h
index 2812ed11f877..89b773233ac5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv40.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv40.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV40_GR_H__
 #define __NV40_GR_H__
 #define nv40_gr(p) container_of((p), struct nv40_gr, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.h
index 45eec83a5969..567fa4f3e518 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_GR_H__
 #define __NV50_GR_H__
 #define nv50_gr(p) container_of((p), struct nv50_gr, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/priv.h
index 2a52d9f026ec..66359c23cbce 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GR_PRIV_H__
 #define __NVKM_GR_PRIV_H__
 #define nvkm_gr(p) container_of((p), struct nvkm_gr, engine)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/regs.h b/drivers/gpu/drm/nouveau/nvkm/engine/gr/regs.h
index 90a9873ce522..dc4f936675ac 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/regs.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GR_REGS_H__
 #define __NVKM_GR_REGS_H__
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.h b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.h
index d3bb34fcdebf..1ac2b4558bec 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/nv31.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV31_MPEG_H__
 #define __NV31_MPEG_H__
 #define nv31_mpeg(p) container_of((p), struct nv31_mpeg, engine)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/priv.h
index d5753103ff63..26f9d14151e2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mpeg/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MPEG_PRIV_H__
 #define __NVKM_MPEG_PRIV_H__
 #include <engine/mpeg.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/mspdec/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/mspdec/priv.h
index d518af4bc9de..db305072a82f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/mspdec/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/mspdec/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSPDEC_PRIV_H__
 #define __NVKM_MSPDEC_PRIV_H__
 #include <engine/mspdec.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/msppp/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/msppp/priv.h
index 37a91f9d9181..7708e52c9043 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/msppp/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/msppp/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSPPP_PRIV_H__
 #define __NVKM_MSPPP_PRIV_H__
 #include <engine/msppp.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/msvld/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/msvld/priv.h
index 9dc1da67d929..66c36049abca 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/msvld/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/msvld/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MSVLD_PRIV_H__
 #define __NVKM_MSVLD_PRIV_H__
 #include <engine/msvld.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h
index 353b94f51205..6c300739f621 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/nvdec/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_NVDEC_PRIV_H__
 #define __NVKM_NVDEC_PRIV_H__
 #include <engine/nvdec.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/gf100.h b/drivers/gpu/drm/nouveau/nvkm/engine/pm/gf100.h
index 56d0344853ea..c74fd4557d41 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/gf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/gf100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PM_NVC0_H__
 #define __NVKM_PM_NVC0_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.h b/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.h
index da481abe8f7a..3f37b713936c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/nv40.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PM_NV40_H__
 #define __NVKM_PM_NV40_H__
 #define nv40_pm(p) container_of((p), struct nv40_pm, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h
index d7b81cbf82b5..17240d54b1eb 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/pm/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PM_PRIV_H__
 #define __NVKM_PM_PRIV_H__
 #define nvkm_pm(p) container_of((p), struct nvkm_pm, engine)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sec/fuc/g98.fuc0s.h b/drivers/gpu/drm/nouveau/nvkm/engine/sec/fuc/g98.fuc0s.h
index 4b57f8814560..6278a0c5fe83 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sec/fuc/g98.fuc0s.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sec/fuc/g98.fuc0s.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t g98_sec_data[] = {
 /* 0x0000: ctx_dma */
 /* 0x0000: ctx_dma_query */
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/priv.h
index 7ecc9d4724dc..2f97c806a79d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sec2/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sec2/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SEC2_PRIV_H__
 #define __NVKM_SEC2_PRIV_H__
 #include <engine/sec2.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h b/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h
index 6608bf6c6842..b1fa69314e4a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/chan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SW_CHAN_H__
 #define __NVKM_SW_CHAN_H__
 #define nvkm_sw_chan(p) container_of((p), struct nvkm_sw_chan, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.h b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.h
index 25cdfdef2d46..459afd30a484 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SW_NV50_H__
 #define __NVKM_SW_NV50_H__
 #define nv50_sw_chan(p) container_of((p), struct nv50_sw_chan, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.h b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.h
index 943ef4c10091..7050a9e49db1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/nvsw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_NVSW_H__
 #define __NVKM_NVSW_H__
 #define nvkm_nvsw(p) container_of((p), struct nvkm_nvsw, object)
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/sw/priv.h b/drivers/gpu/drm/nouveau/nvkm/engine/sw/priv.h
index 0ef1318dc2fd..4aca1791abc3 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/sw/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/sw/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_SW_PRIV_H__
 #define __NVKM_SW_PRIV_H__
 #define nvkm_sw(p) container_of((p), struct nvkm_sw, engine)
diff --git a/drivers/gpu/drm/nouveau/nvkm/falcon/priv.h b/drivers/gpu/drm/nouveau/nvkm/falcon/priv.h
index 97b56f759d0b..d515ad994199 100644
--- a/drivers/gpu/drm/nouveau/nvkm/falcon/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/falcon/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FALCON_PRIV_H__
 #define __NVKM_FALCON_PRIV_H__
 #include <engine/falcon.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h
index 20a5255362ba..9accd7923788 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/gf100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GF100_BAR_H__
 #define __GF100_BAR_H__
 #define gf100_bar(p) container_of((p), struct gf100_bar, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h
index 1eb764f22a49..ce9ab9110b08 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_BAR_H__
 #define __NV50_BAR_H__
 #define nv50_bar(p) container_of((p), struct nv50_bar, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h
index d834ef20db5b..63d111c8afd4 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bar/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BAR_PRIV_H__
 #define __NVKM_BAR_PRIV_H__
 #define nvkm_bar(p) container_of((p), struct nvkm_bar, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
index 7d1d3c6b4b72..33435ca16311 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BIOS_PRIV_H__
 #define __NVKM_BIOS_PRIV_H__
 #define nvkm_bios(p) container_of((p), struct nvkm_bios, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/hwsq.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/hwsq.h
index 54ec3b131dfd..17ac1812a928 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/hwsq.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/hwsq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BUS_HWSQ_H__
 #define __NVKM_BUS_HWSQ_H__
 #include <subdev/bus.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/priv.h
index a130f2c642d5..ef01e569352d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bus/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bus/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_BUS_PRIV_H__
 #define __NVKM_BUS_PRIV_H__
 #define nvkm_bus(p) container_of((p), struct nvkm_bus, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.h b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.h
index 8865b59fe575..1ea886a4301f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/gt215.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CLK_NVA3_H__
 #define __NVKM_CLK_NVA3_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv50.h b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv50.h
index d3c7fb6efa16..f134d979d884 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_CLK_H__
 #define __NV50_CLK_H__
 #define nv50_clk(p) container_of((p), struct nv50_clk, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/pll.h b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/pll.h
index 44020a30dee8..9a39f1fd2976 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/pll.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/pll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PLL_H__
 #define __NVKM_PLL_H__
 #include <core/os.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/priv.h
index 51eafc00c8b1..b656177923fb 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CLK_PRIV_H__
 #define __NVKM_CLK_PRIV_H__
 #define nvkm_clk(p) container_of((p), struct nvkm_clk, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/seq.h b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/seq.h
index d717e8b8f679..d0715fe84328 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/clk/seq.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/clk/seq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_CLK_SEQ_H__
 #define __NVKM_CLK_SEQ_H__
 #include <subdev/bus/hwsq.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.h b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.h
index 4a87c8c2bce8..b18e49847eee 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV04_DEVINIT_H__
 #define __NV04_DEVINIT_H__
 #define nv04_devinit(p) container_of((p), struct nv04_devinit, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv50.h b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv50.h
index 25d2ae3af1c6..315ebaff1165 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV50_DEVINIT_H__
 #define __NV50_DEVINIT_H__
 #define nv50_devinit(p) container_of((p), struct nv50_devinit, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/priv.h
index e1f6ae58f1d3..5b3097a586dd 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_DEVINIT_PRIV_H__
 #define __NVKM_DEVINIT_PRIV_H__
 #define nvkm_devinit(p) container_of((p), struct nvkm_devinit, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.h
index 412eb89834e8..1756f7b02858 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_RAM_NVC0_H__
 #define __NVKM_RAM_NVC0_H__
 #define gf100_fb(p) container_of((p), struct gf100_fb, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.h
index faa88c8c66fe..a37758c76268 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv50.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FB_NV50_H__
 #define __NVKM_FB_NV50_H__
 #define nv50_fb(p) container_of((p), struct nv50_fb, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h
index e905d44fa1d5..8e87b887d4f5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FB_PRIV_H__
 #define __NVKM_FB_PRIV_H__
 #define nvkm_fb(p) container_of((p), struct nvkm_fb, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h
index fac7e73c3ddf..b2122d261f8d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FB_RAM_PRIV_H__
 #define __NVKM_FB_RAM_PRIV_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h
index 9ef9d6aa3721..a65fa5586af8 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FBRAM_FUC_H__
 #define __NVKM_FBRAM_FUC_H__
 #include <subdev/fb.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.h
index 8a0524566b48..8549fdf2437c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramnv40.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV40_FB_RAM_H__
 #define __NV40_FB_RAM_H__
 #define nv40_ram(p) container_of((p), struct nv40_ram, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramseq.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramseq.h
index 8df7306d5729..d8f5053e8e2a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramseq.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramseq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FBRAM_SEQ_H__
 #define __NVKM_FBRAM_SEQ_H__
 #include <subdev/bus/hwsq.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h
index 1f865f61504e..ad26fcbe9e06 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/regsnv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FB_REGS_04_H__
 #define __NVKM_FB_REGS_04_H__
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/priv.h
index b0390b540ef5..3a5595a9e457 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fuse/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_FUSE_PRIV_H__
 #define __NVKM_FUSE_PRIV_H__
 #define nvkm_fuse(p) container_of((p), struct nvkm_fuse, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
index 4a57defc99b3..1399d923d446 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/base.c
@@ -171,7 +171,7 @@ nvkm_gpio_fini(struct nvkm_subdev *subdev, bool suspend)
 	return 0;
 }
 
-static struct dmi_system_id gpio_reset_ids[] = {
+static const struct dmi_system_id gpio_reset_ids[] = {
 	{
 		.ident = "Apple Macbook 10,1",
 		.matches = {
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/priv.h
index 371bcdbbe0d6..9759f13447bf 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_GPIO_PRIV_H__
 #define __NVKM_GPIO_PRIV_H__
 #define nvkm_gpio(p) container_of((p), struct nvkm_gpio, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
index 9587ab456d9e..7d56c4ba693c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_I2C_AUX_H__
 #define __NVKM_I2C_AUX_H__
 #include "pad.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
index e1be14c23e54..bea0dd33961e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_I2C_BUS_H__
 #define __NVKM_I2C_BUS_H__
 #include "pad.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h
index 316c4536f29a..33f0c809e583 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_I2C_PAD_H__
 #define __NVKM_I2C_PAD_H__
 #include <subdev/i2c.h>
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h
index bf655a66ef40..f476a69b6cb7 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_I2C_PRIV_H__
 #define __NVKM_I2C_PRIV_H__
 #define nvkm_i2c(p) container_of((p), struct nvkm_i2c, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/priv.h
index 01caf798cf31..504a6d37ec50 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ibus/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_IBUS_PRIV_H__
 #define __NVKM_IBUS_PRIV_H__
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h
index e90e0f6ed008..bd599b8252ca 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_ICCSENSE_PRIV_H__
 #define __NVKM_ICCSENSE_PRIV_H__
 #define nvkm_iccsense(p) container_of((p), struct nvkm_iccsense, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/priv.h
index ace4471864a3..021e7a1f39a1 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/instmem/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_INSTMEM_PRIV_H__
 #define __NVKM_INSTMEM_PRIV_H__
 #define nvkm_instmem(p) container_of((p), struct nvkm_instmem, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
index 8b95f96e3ffa..e71cc25cc775 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_LTC_PRIV_H__
 #define __NVKM_LTC_PRIV_H__
 #define nvkm_ltc(p) container_of((p), struct nvkm_ltc, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h
index 3be4126441e4..8869d79c2b59 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MC_PRIV_H__
 #define __NVKM_MC_PRIV_H__
 #define nvkm_mc(p) container_of((p), struct nvkm_mc, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
index d06ad2c372bf..455da298227f 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
@@ -241,6 +241,8 @@ nvkm_vm_unmap_pgt(struct nvkm_vm *vm, int big, u32 fpde, u32 lpde)
 			mmu->func->map_pgt(vpgd->obj, pde, vpgt->mem);
 		}
 
+		mmu->func->flush(vm);
+
 		nvkm_memory_del(&pgt);
 	}
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h
index 363e33b296d5..9c35c43635c2 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/nv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV04_MMU_PRIV__
 #define __NV04_MMU_PRIV__
 #define nv04_mmu(p) container_of((p), struct nv04_mmu, base)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
index 27cedc60b507..bf37f313b5bb 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MMU_PRIV_H__
 #define __NVKM_MMU_PRIV_H__
 #define nvkm_mmu(p) container_of((p), struct nvkm_mmu, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.h
index 333e0c01545a..011a67fe4a8b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/mxms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVMXM_MXMS_H__
 #define __NVMXM_MXMS_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/priv.h
index 7d970157aed1..6767c2279e7c 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mxm/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_MXM_PRIV_H__
 #define __NVKM_MXM_PRIV_H__
 #define nvkm_mxm(p) container_of((p), struct nvkm_mxm, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
index df2dd08363ad..edb7f00f0de5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "priv.h"
 #if defined(CONFIG_AGP) || (defined(CONFIG_AGP_MODULE) && defined(MODULE))
 #ifndef __NVKM_PCI_AGP_H__
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h
index 86921ec962d6..c17f6063c9ea 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PCI_PRIV_H__
 #define __NVKM_PCI_PRIV_H__
 #define nvkm_pci(p) container_of((p), struct nvkm_pci, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf100.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf100.fuc3.h
index 0bcf0b307a61..53d01fb00a8b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf100.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf100.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf100_pmu_data[] = {
 /* 0x0000: proc_kern */
 	0x52544e49,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf119.fuc4.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf119.fuc4.h
index fe8905666c67..e1e981966c2d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf119.fuc4.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gf119.fuc4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gf119_pmu_data[] = {
 /* 0x0000: proc_kern */
 	0x52544e49,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gk208.fuc5.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gk208.fuc5.h
index 9cf4e6fc724e..c4edbc79e41a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gk208.fuc5.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gk208.fuc5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gk208_pmu_data[] = {
 /* 0x0000: proc_kern */
 	0x52544e49,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gt215.fuc3.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gt215.fuc3.h
index 5d692425b190..6a2572e8945a 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gt215.fuc3.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/gt215.fuc3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static uint32_t gt215_pmu_data[] = {
 /* 0x0000: proc_kern */
 	0x52544e49,
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/os.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/os.h
index c8b06cb77e72..30d9480b9be5 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/os.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/fuc/os.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PWR_OS_H__
 #define __NVKM_PWR_OS_H__
 
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c
index e6f74168238c..11b28b086a06 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/memx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef __NVKM_PMU_MEMX_H__
 #define __NVKM_PMU_MEMX_H__
 #include "priv.h"
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
index a4c48a10cd47..e9c6f9725afe 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pmu/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_PMU_PRIV_H__
 #define __NVKM_PMU_PRIV_H__
 #define nvkm_pmu(p) container_of((p), struct nvkm_pmu, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/timer/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/timer/priv.h
index f820ca2aeda4..3b8878486faa 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/timer/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/timer/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_TIMER_PRIV_H__
 #define __NVKM_TIMER_PRIV_H__
 #define nvkm_timer(p) container_of((p), struct nvkm_timer, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/timer/regsnv04.h b/drivers/gpu/drm/nouveau/nvkm/subdev/timer/regsnv04.h
index 10bef85b485e..23d07f5f44d9 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/timer/regsnv04.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/timer/regsnv04.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define NV04_PTIMER_INTR_0      0x009100
 #define NV04_PTIMER_INTR_EN_0   0x009140
 #define NV04_PTIMER_NUMERATOR   0x009200
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h
index adb3ed03d937..4f49b0acaa0e 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/top/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_TOP_PRIV_H__
 #define __NVKM_TOP_PRIV_H__
 #define nvkm_top(p) container_of((p), struct nvkm_top, subdev)
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h
index 354bafe4b4e2..1a8ad560321b 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/volt/priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVKM_VOLT_PRIV_H__
 #define __NVKM_VOLT_PRIV_H__
 #define nvkm_volt(p) container_of((p), struct nvkm_volt, subdev)
diff --git a/drivers/gpu/drm/omapdrm/Makefile b/drivers/gpu/drm/omapdrm/Makefile
index b391be7ecb6c..f115253115c5 100644
--- a/drivers/gpu/drm/omapdrm/Makefile
+++ b/drivers/gpu/drm/omapdrm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI)
diff --git a/drivers/gpu/drm/omapdrm/displays/Makefile b/drivers/gpu/drm/omapdrm/displays/Makefile
index 46baafb1a83e..d99659e1381b 100644
--- a/drivers/gpu/drm/omapdrm/displays/Makefile
+++ b/drivers/gpu/drm/omapdrm/displays/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DRM_OMAP_ENCODER_OPA362) += encoder-opa362.o
 obj-$(CONFIG_DRM_OMAP_ENCODER_TFP410) += encoder-tfp410.o
 obj-$(CONFIG_DRM_OMAP_ENCODER_TPD12S015) += encoder-tpd12s015.o
diff --git a/drivers/gpu/drm/omapdrm/dss/Makefile b/drivers/gpu/drm/omapdrm/dss/Makefile
index 142ce5a02542..62d5b4f45420 100644
--- a/drivers/gpu/drm/omapdrm/dss/Makefile
+++ b/drivers/gpu/drm/omapdrm/dss/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OMAP2_DSS_INIT) += omapdss-boot-init.o
 
 obj-$(CONFIG_OMAP_DSS_BASE) += omapdss-base.o
diff --git a/drivers/gpu/drm/omapdrm/dss/hdmi_common.c b/drivers/gpu/drm/omapdrm/dss/hdmi_common.c
index 4dfb67fe5f6d..3ecde23ac604 100644
--- a/drivers/gpu/drm/omapdrm/dss/hdmi_common.c
+++ b/drivers/gpu/drm/omapdrm/dss/hdmi_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #define DSS_SUBSYS_NAME "HDMI"
 
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 9f6610d08b00..d73d3e661cec 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DRM_PANEL_LVDS) += panel-lvds.o
 obj-$(CONFIG_DRM_PANEL_SIMPLE) += panel-simple.o
 obj-$(CONFIG_DRM_PANEL_INNOLUX_P079ZCA) += panel-innolux-p079zca.o
diff --git a/drivers/gpu/drm/pl111/Makefile b/drivers/gpu/drm/pl111/Makefile
index 59483d610ef5..f2874bbdaa14 100644
--- a/drivers/gpu/drm/pl111/Makefile
+++ b/drivers/gpu/drm/pl111/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 pl111_drm-y +=	pl111_connector.o \
 		pl111_display.o \
 		pl111_drv.o
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index 14c5613b4388..afbf50d0c08f 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -509,23 +509,25 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
 	    .y2 = qfb->base.height
 	};
 
-	if (!old_state->fb) {
-		qxl_io_log(qdev,
-			   "create primary fb: %dx%d,%d,%d\n",
-			   bo->surf.width, bo->surf.height,
-			   bo->surf.stride, bo->surf.format);
+	if (old_state->fb) {
+		qfb_old = to_qxl_framebuffer(old_state->fb);
+		bo_old = gem_to_qxl_bo(qfb_old->obj);
+	} else {
+		bo_old = NULL;
+	}
 
-		qxl_io_create_primary(qdev, 0, bo);
-		bo->is_primary = true;
+	if (bo == bo_old)
 		return;
 
-	} else {
-		qfb_old = to_qxl_framebuffer(old_state->fb);
-		bo_old = gem_to_qxl_bo(qfb_old->obj);
+	if (bo_old && bo_old->is_primary) {
+		qxl_io_destroy_primary(qdev);
 		bo_old->is_primary = false;
 	}
 
-	bo->is_primary = true;
+	if (!bo->is_primary) {
+		qxl_io_create_primary(qdev, 0, bo);
+		bo->is_primary = true;
+	}
 	qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
 }
 
@@ -534,13 +536,15 @@ static void qxl_primary_atomic_disable(struct drm_plane *plane,
 {
 	struct qxl_device *qdev = plane->dev->dev_private;
 
-	if (old_state->fb)
-	{	struct qxl_framebuffer *qfb =
+	if (old_state->fb) {
+		struct qxl_framebuffer *qfb =
 			to_qxl_framebuffer(old_state->fb);
 		struct qxl_bo *bo = gem_to_qxl_bo(qfb->obj);
 
-		qxl_io_destroy_primary(qdev);
-		bo->is_primary = false;
+		if (bo->is_primary) {
+			qxl_io_destroy_primary(qdev);
+			bo->is_primary = false;
+		}
 	}
 }
 
@@ -698,14 +702,15 @@ static void qxl_plane_cleanup_fb(struct drm_plane *plane,
 	struct drm_gem_object *obj;
 	struct qxl_bo *user_bo;
 
-	if (!plane->state->fb) {
-		/* we never executed prepare_fb, so there's nothing to
+	if (!old_state->fb) {
+		/*
+		 * we never executed prepare_fb, so there's nothing to
 		 * unpin.
 		 */
 		return;
 	}
 
-	obj = to_qxl_framebuffer(plane->state->fb)->obj;
+	obj = to_qxl_framebuffer(old_state->fb)->obj;
 	user_bo = gem_to_qxl_bo(obj);
 	qxl_bo_unpin(user_bo);
 }
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index 4acbb944bcd2..0ad8244b5ccf 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/radeon/mkregtable.c b/drivers/gpu/drm/radeon/mkregtable.c
index b928c17bdeed..c21d8fa591ef 100644
--- a/drivers/gpu/drm/radeon/mkregtable.c
+++ b/drivers/gpu/drm/radeon/mkregtable.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* utility to create the register check tables
  * this includes inlined list.h safe for userspace.
  *
diff --git a/drivers/gpu/drm/radeon/r100_track.h b/drivers/gpu/drm/radeon/r100_track.h
index eb40888bdfcc..ad16a925f8d5 100644
--- a/drivers/gpu/drm/radeon/r100_track.h
+++ b/drivers/gpu/drm/radeon/r100_track.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #define R100_TRACK_MAX_TEXTURE 3
 #define R200_TRACK_MAX_TEXTURE 6
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 997131d58c7f..ffc10cadcf34 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -1663,7 +1663,7 @@ int radeon_suspend_kms(struct drm_device *dev, bool suspend,
 	radeon_agp_suspend(rdev);
 
 	pci_save_state(dev->pdev);
-	if (freeze && rdev->family >= CHIP_CEDAR) {
+	if (freeze && rdev->family >= CHIP_CEDAR && !(rdev->flags & RADEON_IS_IGP)) {
 		rdev->asic->asic_reset(rdev, true);
 		pci_restore_state(dev->pdev);
 	} else if (suspend) {
diff --git a/drivers/gpu/drm/radeon/radeon_dp_mst.c b/drivers/gpu/drm/radeon/radeon_dp_mst.c
index ebdf1b859cb6..2917ea1b667e 100644
--- a/drivers/gpu/drm/radeon/radeon_dp_mst.c
+++ b/drivers/gpu/drm/radeon/radeon_dp_mst.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <drm/drmP.h>
 #include <drm/drm_dp_mst_helper.h>
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index 3386452bd2f0..cf3deb283da5 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -451,7 +451,7 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
 	else
 		r = 0;
 
-	cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
+	cur_placement = READ_ONCE(robj->tbo.mem.mem_type);
 	args->domain = radeon_mem_type_to_domain(cur_placement);
 	drm_gem_object_put_unlocked(gobj);
 	return r;
@@ -481,7 +481,7 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
 		r = ret;
 
 	/* Flush HDP cache via MMIO if necessary */
-	cur_placement = ACCESS_ONCE(robj->tbo.mem.mem_type);
+	cur_placement = READ_ONCE(robj->tbo.mem.mem_type);
 	if (rdev->asic->mmio_hdp_flush &&
 	    radeon_mem_type_to_domain(cur_placement) == RADEON_GEM_DOMAIN_VRAM)
 		robj->rdev->asic->mmio_hdp_flush(rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_tv.c b/drivers/gpu/drm/radeon/radeon_legacy_tv.c
index 49750d07ab7d..611cf934b211 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_tv.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_tv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
 #include "radeon.h"
diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h
index fdce4062901f..db8f079e441e 100644
--- a/drivers/gpu/drm/radeon/radeon_trace.h
+++ b/drivers/gpu/drm/radeon/radeon_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_RADEON_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _RADEON_TRACE_H_
 
diff --git a/drivers/gpu/drm/radeon/radeon_trace_points.c b/drivers/gpu/drm/radeon/radeon_trace_points.c
index e51d3575976b..66b3d5084662 100644
--- a/drivers/gpu/drm/radeon/radeon_trace_points.c
+++ b/drivers/gpu/drm/radeon/radeon_trace_points.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Copyright Red Hat Inc 2010.
  * Author : Dave Airlie <airlied@redhat.com>
  */
diff --git a/drivers/gpu/drm/rcar-du/Makefile b/drivers/gpu/drm/rcar-du/Makefile
index 2131e722de3b..0cf5c11030e8 100644
--- a/drivers/gpu/drm/rcar-du/Makefile
+++ b/drivers/gpu/drm/rcar-du/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rcar-du-drm-y := rcar_du_crtc.o \
 		 rcar_du_drv.o \
 		 rcar_du_encoder.o \
diff --git a/drivers/gpu/drm/rockchip/Makefile b/drivers/gpu/drm/rockchip/Makefile
index fa8dc9d9aac2..305409818ffb 100644
--- a/drivers/gpu/drm/rockchip/Makefile
+++ b/drivers/gpu/drm/rockchip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/selftests/drm_mm_selftests.h b/drivers/gpu/drm/selftests/drm_mm_selftests.h
index 37bbdac52896..54acc117550c 100644
--- a/drivers/gpu/drm/selftests/drm_mm_selftests.h
+++ b/drivers/gpu/drm/selftests/drm_mm_selftests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* List each unit test as selftest(name, function)
  *
  * The name is used as both an enum and expanded as igt__name to create
diff --git a/drivers/gpu/drm/selftests/test-drm_mm.c b/drivers/gpu/drm/selftests/test-drm_mm.c
index dfdd858eda0a..86eb4c185a28 100644
--- a/drivers/gpu/drm/selftests/test-drm_mm.c
+++ b/drivers/gpu/drm/selftests/test-drm_mm.c
@@ -1627,7 +1627,7 @@ static int igt_topdown(void *ignored)
 		goto err;
 
 	bitmap = kzalloc(count / BITS_PER_LONG * sizeof(unsigned long),
-			 GFP_TEMPORARY);
+			 GFP_KERNEL);
 	if (!bitmap)
 		goto err_nodes;
 
@@ -1741,7 +1741,7 @@ static int igt_bottomup(void *ignored)
 		goto err;
 
 	bitmap = kzalloc(count / BITS_PER_LONG * sizeof(unsigned long),
-			 GFP_TEMPORARY);
+			 GFP_KERNEL);
 	if (!bitmap)
 		goto err_nodes;
 
diff --git a/drivers/gpu/drm/shmobile/Makefile b/drivers/gpu/drm/shmobile/Makefile
index 4c3eeb355630..861edafed856 100644
--- a/drivers/gpu/drm/shmobile/Makefile
+++ b/drivers/gpu/drm/shmobile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 shmob-drm-y := shmob_drm_backlight.o \
 	       shmob_drm_crtc.o \
 	       shmob_drm_drv.o \
diff --git a/drivers/gpu/drm/sti/Makefile b/drivers/gpu/drm/sti/Makefile
index c35db12435c3..f203ac5514ae 100644
--- a/drivers/gpu/drm/sti/Makefile
+++ b/drivers/gpu/drm/sti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 sti-drm-y := \
 	sti_mixer.o \
 	sti_gdp.o \
diff --git a/drivers/gpu/drm/sun4i/Kconfig b/drivers/gpu/drm/sun4i/Kconfig
index 06f05302ee75..882d85db9053 100644
--- a/drivers/gpu/drm/sun4i/Kconfig
+++ b/drivers/gpu/drm/sun4i/Kconfig
@@ -26,7 +26,7 @@ config DRM_SUN4I_HDMI_CEC
        bool "Allwinner A10 HDMI CEC Support"
        depends on DRM_SUN4I_HDMI
        select CEC_CORE
-       depends on CEC_PIN
+       select CEC_PIN
        help
 	  Choose this option if you have an Allwinner SoC with an HDMI
 	  controller and want to use CEC.
diff --git a/drivers/gpu/drm/sun4i/Makefile b/drivers/gpu/drm/sun4i/Makefile
index 43c753cafc88..55b32368f8fb 100644
--- a/drivers/gpu/drm/sun4i/Makefile
+++ b/drivers/gpu/drm/sun4i/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 sun4i-drm-y += sun4i_drv.o
 sun4i-drm-y += sun4i_framebuffer.o
 
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi.h b/drivers/gpu/drm/sun4i/sun4i_hdmi.h
index 1457750988da..a1f8cba251a2 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi.h
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi.h
@@ -15,7 +15,7 @@
 #include <drm/drm_connector.h>
 #include <drm/drm_encoder.h>
 
-#include <media/cec.h>
+#include <media/cec-pin.h>
 
 #define SUN4I_HDMI_CTRL_REG		0x004
 #define SUN4I_HDMI_CTRL_ENABLE			BIT(31)
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
index 9ea6cd5a1370..3cf1a6932fac 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
@@ -302,26 +302,29 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
 	hdmi->mod_clk = devm_clk_get(dev, "mod");
 	if (IS_ERR(hdmi->mod_clk)) {
 		dev_err(dev, "Couldn't get the HDMI mod clock\n");
-		return PTR_ERR(hdmi->mod_clk);
+		ret = PTR_ERR(hdmi->mod_clk);
+		goto err_disable_bus_clk;
 	}
 	clk_prepare_enable(hdmi->mod_clk);
 
 	hdmi->pll0_clk = devm_clk_get(dev, "pll-0");
 	if (IS_ERR(hdmi->pll0_clk)) {
 		dev_err(dev, "Couldn't get the HDMI PLL 0 clock\n");
-		return PTR_ERR(hdmi->pll0_clk);
+		ret = PTR_ERR(hdmi->pll0_clk);
+		goto err_disable_mod_clk;
 	}
 
 	hdmi->pll1_clk = devm_clk_get(dev, "pll-1");
 	if (IS_ERR(hdmi->pll1_clk)) {
 		dev_err(dev, "Couldn't get the HDMI PLL 1 clock\n");
-		return PTR_ERR(hdmi->pll1_clk);
+		ret = PTR_ERR(hdmi->pll1_clk);
+		goto err_disable_mod_clk;
 	}
 
 	ret = sun4i_tmds_create(hdmi);
 	if (ret) {
 		dev_err(dev, "Couldn't create the TMDS clock\n");
-		return ret;
+		goto err_disable_mod_clk;
 	}
 
 	writel(SUN4I_HDMI_CTRL_ENABLE, hdmi->base + SUN4I_HDMI_CTRL_REG);
@@ -362,7 +365,7 @@ static int sun4i_hdmi_bind(struct device *dev, struct device *master,
 	ret = sun4i_hdmi_i2c_create(dev, hdmi);
 	if (ret) {
 		dev_err(dev, "Couldn't create the HDMI I2C adapter\n");
-		return ret;
+		goto err_disable_mod_clk;
 	}
 
 	drm_encoder_helper_add(&hdmi->encoder,
@@ -422,6 +425,10 @@ err_cleanup_connector:
 	drm_encoder_cleanup(&hdmi->encoder);
 err_del_i2c_adapter:
 	i2c_del_adapter(hdmi->i2c);
+err_disable_mod_clk:
+	clk_disable_unprepare(hdmi->mod_clk);
+err_disable_bus_clk:
+	clk_disable_unprepare(hdmi->bus_clk);
 	return ret;
 }
 
@@ -434,6 +441,8 @@ static void sun4i_hdmi_unbind(struct device *dev, struct device *master,
 	drm_connector_cleanup(&hdmi->connector);
 	drm_encoder_cleanup(&hdmi->encoder);
 	i2c_del_adapter(hdmi->i2c);
+	clk_disable_unprepare(hdmi->mod_clk);
+	clk_disable_unprepare(hdmi->bus_clk);
 }
 
 static const struct component_ops sun4i_hdmi_ops = {
diff --git a/drivers/gpu/drm/tegra/Makefile b/drivers/gpu/drm/tegra/Makefile
index 8927784396e8..46d65d39214d 100644
--- a/drivers/gpu/drm/tegra/Makefile
+++ b/drivers/gpu/drm/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_DRM_TEGRA_DEBUG) += -DDEBUG
 
 tegra-drm-y := \
diff --git a/drivers/gpu/drm/tegra/trace.h b/drivers/gpu/drm/tegra/trace.h
index e9b7cdad5c4c..5a1ab4046e92 100644
--- a/drivers/gpu/drm/tegra/trace.h
+++ b/drivers/gpu/drm/tegra/trace.h
@@ -63,6 +63,6 @@ DEFINE_EVENT(register_access, sor_readl,
 
 /* This part must be outside protection */
 #undef TRACE_INCLUDE_PATH
-#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/tegra
 #define TRACE_INCLUDE_FILE trace
 #include <trace/define_trace.h>
diff --git a/drivers/gpu/drm/tilcdc/Makefile b/drivers/gpu/drm/tilcdc/Makefile
index 55ebd516728f..b9e1108e5b4e 100644
--- a/drivers/gpu/drm/tilcdc/Makefile
+++ b/drivers/gpu/drm/tilcdc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifeq (, $(findstring -W,$(EXTRA_CFLAGS)))
 	ccflags-y += -Werror
 endif
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index 4d0c938ff4b2..a60e560804e0 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index cba11f13d994..180ce6296416 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -109,8 +109,8 @@ static ssize_t ttm_bo_global_show(struct kobject *kobj,
 	struct ttm_bo_global *glob =
 		container_of(kobj, struct ttm_bo_global, kobj);
 
-	return snprintf(buffer, PAGE_SIZE, "%lu\n",
-			(unsigned long) atomic_read(&glob->bo_count));
+	return snprintf(buffer, PAGE_SIZE, "%d\n",
+				atomic_read(&glob->bo_count));
 }
 
 static struct attribute *ttm_bo_global_attrs[] = {
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index d0459b392e5e..c934ad5b3903 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -469,6 +469,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
 	 * TODO: Explicit member copy would probably be better here.
 	 */
 
+	atomic_inc(&bo->glob->bo_count);
 	INIT_LIST_HEAD(&fbo->ddestroy);
 	INIT_LIST_HEAD(&fbo->lru);
 	INIT_LIST_HEAD(&fbo->swap);
diff --git a/drivers/gpu/drm/vc4/Makefile b/drivers/gpu/drm/vc4/Makefile
index 25bd5d30415d..837c82757339 100644
--- a/drivers/gpu/drm/vc4/Makefile
+++ b/drivers/gpu/drm/vc4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Please keep these build lists sorted!
 
 # core driver code
diff --git a/drivers/gpu/drm/virtio/Makefile b/drivers/gpu/drm/virtio/Makefile
index 7684f613bdc3..f29deec83d1f 100644
--- a/drivers/gpu/drm/virtio/Makefile
+++ b/drivers/gpu/drm/virtio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the drm device driver.  This driver provides support for the
 # Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile
index a365330bbb82..ad80211e1098 100644
--- a/drivers/gpu/drm/vmwgfx/Makefile
+++ b/drivers/gpu/drm/vmwgfx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
 	    vmwgfx_fb.o vmwgfx_ioctl.o vmwgfx_resource.o vmwgfx_buffer.o \
 	    vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \
diff --git a/drivers/gpu/drm/vmwgfx/device_include/vm_basic_types.h b/drivers/gpu/drm/vmwgfx/device_include/vm_basic_types.h
index 120eab830eaf..3a195e8106b3 100644
--- a/drivers/gpu/drm/vmwgfx/device_include/vm_basic_types.h
+++ b/drivers/gpu/drm/vmwgfx/device_include/vm_basic_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VM_BASIC_TYPES_H_
 #define _VM_BASIC_TYPES_H_
 #include <linux/kernel.h>
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index e84fee3ec4f3..184340d486c3 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -721,7 +721,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 		 * allocation taken by fbdev
 		 */
 		if (!(dev_priv->capabilities & SVGA_CAP_3D))
-			mem_size *= 2;
+			mem_size *= 3;
 
 		dev_priv->max_mob_pages = mem_size * 1024 / PAGE_SIZE;
 		dev_priv->prim_bb_mem =
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index 3bbad22b3748..d6b1c509ae01 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -224,7 +224,7 @@ out:
 	return ret;
 }
 
-static struct dma_fence_ops vmw_fence_ops = {
+static const struct dma_fence_ops vmw_fence_ops = {
 	.get_driver_name = vmw_fence_get_driver_name,
 	.get_timeline_name = vmw_fence_get_timeline_name,
 	.enable_signaling = vmw_fence_enable_signaling,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index a552e4ea5440..6ac094ee8983 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -904,7 +904,7 @@ vmw_surface_handle_reference(struct vmw_private *dev_priv,
 		if (unlikely(drm_is_render_client(file_priv)))
 			require_exist = true;
 
-		if (ACCESS_ONCE(vmw_fpriv(file_priv)->locked_master)) {
+		if (READ_ONCE(vmw_fpriv(file_priv)->locked_master)) {
 			DRM_ERROR("Locked master refused legacy "
 				  "surface reference.\n");
 			return -EACCES;
diff --git a/drivers/gpu/drm/zte/Makefile b/drivers/gpu/drm/zte/Makefile
index 9df7766a7f9d..b6d966d849dd 100644
--- a/drivers/gpu/drm/zte/Makefile
+++ b/drivers/gpu/drm/zte/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 zxdrm-y := \
 	zx_drm_drv.o \
 	zx_hdmi.o \
diff --git a/drivers/gpu/host1x/Makefile b/drivers/gpu/host1x/Makefile
index a1d9974cfcb5..c0b80244158d 100644
--- a/drivers/gpu/host1x/Makefile
+++ b/drivers/gpu/host1x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 host1x-y = \
 	bus.o \
 	syncpt.o \
diff --git a/drivers/gpu/ipu-v3/Makefile b/drivers/gpu/ipu-v3/Makefile
index 8cdf9e4ae772..7cc8b47e488b 100644
--- a/drivers/gpu/ipu-v3/Makefile
+++ b/drivers/gpu/ipu-v3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IMX_IPUV3_CORE) += imx-ipu-v3.o
 
 imx-ipu-v3-objs := ipu-common.o ipu-cpmem.o ipu-csi.o ipu-dc.o ipu-di.o \
diff --git a/drivers/gpu/ipu-v3/ipu-common.c b/drivers/gpu/ipu-v3/ipu-common.c
index 6a573d21d3cc..658fa2d3e40c 100644
--- a/drivers/gpu/ipu-v3/ipu-common.c
+++ b/drivers/gpu/ipu-v3/ipu-common.c
@@ -405,6 +405,14 @@ int ipu_idmac_lock_enable(struct ipuv3_channel *channel, int num_bursts)
 		return -EINVAL;
 	}
 
+	/*
+	 * IPUv3EX / i.MX51 has a different register layout, and on IPUv3M /
+	 * i.MX53 channel arbitration locking doesn't seem to work properly.
+	 * Allow enabling the lock feature on IPUv3H / i.MX6 only.
+	 */
+	if (bursts && ipu->ipu_type != IPUV3H)
+		return -EINVAL;
+
 	for (i = 0; i < ARRAY_SIZE(idmac_lock_en_info); i++) {
 		if (channel->num == idmac_lock_en_info[i].chnum)
 			break;
diff --git a/drivers/gpu/ipu-v3/ipu-pre.c b/drivers/gpu/ipu-v3/ipu-pre.c
index c35f74c83065..c860a7997cb5 100644
--- a/drivers/gpu/ipu-v3/ipu-pre.c
+++ b/drivers/gpu/ipu-v3/ipu-pre.c
@@ -73,6 +73,14 @@
 #define  IPU_PRE_STORE_ENG_CTRL_WR_NUM_BYTES(v)		((v & 0x7) << 1)
 #define  IPU_PRE_STORE_ENG_CTRL_OUTPUT_ACTIVE_BPP(v)	((v & 0x3) << 4)
 
+#define IPU_PRE_STORE_ENG_STATUS			0x120
+#define  IPU_PRE_STORE_ENG_STATUS_STORE_BLOCK_X_MASK	0xffff
+#define  IPU_PRE_STORE_ENG_STATUS_STORE_BLOCK_X_SHIFT	0
+#define  IPU_PRE_STORE_ENG_STATUS_STORE_BLOCK_Y_MASK	0x3fff
+#define  IPU_PRE_STORE_ENG_STATUS_STORE_BLOCK_Y_SHIFT	16
+#define  IPU_PRE_STORE_ENG_STATUS_STORE_FIFO_FULL	(1 << 30)
+#define  IPU_PRE_STORE_ENG_STATUS_STORE_FIELD		(1 << 31)
+
 #define IPU_PRE_STORE_ENG_SIZE				0x130
 #define  IPU_PRE_STORE_ENG_SIZE_INPUT_WIDTH(v)		((v & 0xffff) << 0)
 #define  IPU_PRE_STORE_ENG_SIZE_INPUT_HEIGHT(v)		((v & 0xffff) << 16)
@@ -93,6 +101,7 @@ struct ipu_pre {
 	dma_addr_t		buffer_paddr;
 	void			*buffer_virt;
 	bool			in_use;
+	unsigned int		safe_window_end;
 };
 
 static DEFINE_MUTEX(ipu_pre_list_mutex);
@@ -160,6 +169,9 @@ void ipu_pre_configure(struct ipu_pre *pre, unsigned int width,
 	u32 active_bpp = info->cpp[0] >> 1;
 	u32 val;
 
+	/* calculate safe window for ctrl register updates */
+	pre->safe_window_end = height - 2;
+
 	writel(bufaddr, pre->regs + IPU_PRE_CUR_BUF);
 	writel(bufaddr, pre->regs + IPU_PRE_NEXT_BUF);
 
@@ -199,7 +211,24 @@ void ipu_pre_configure(struct ipu_pre *pre, unsigned int width,
 
 void ipu_pre_update(struct ipu_pre *pre, unsigned int bufaddr)
 {
+	unsigned long timeout = jiffies + msecs_to_jiffies(5);
+	unsigned short current_yblock;
+	u32 val;
+
 	writel(bufaddr, pre->regs + IPU_PRE_NEXT_BUF);
+
+	do {
+		if (time_after(jiffies, timeout)) {
+			dev_warn(pre->dev, "timeout waiting for PRE safe window\n");
+			return;
+		}
+
+		val = readl(pre->regs + IPU_PRE_STORE_ENG_STATUS);
+		current_yblock =
+			(val >> IPU_PRE_STORE_ENG_STATUS_STORE_BLOCK_Y_SHIFT) &
+			IPU_PRE_STORE_ENG_STATUS_STORE_BLOCK_Y_MASK;
+	} while (current_yblock == 0 || current_yblock >= pre->safe_window_end);
+
 	writel(IPU_PRE_CTRL_SDW_UPDATE, pre->regs + IPU_PRE_CTRL_SET);
 }
 
diff --git a/drivers/gpu/ipu-v3/ipu-prg.c b/drivers/gpu/ipu-v3/ipu-prg.c
index ecc9ea44dc50..0013ca9f72c8 100644
--- a/drivers/gpu/ipu-v3/ipu-prg.c
+++ b/drivers/gpu/ipu-v3/ipu-prg.c
@@ -14,6 +14,7 @@
 #include <drm/drm_fourcc.h>
 #include <linux/clk.h>
 #include <linux/err.h>
+#include <linux/iopoll.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <linux/module.h>
@@ -329,6 +330,12 @@ int ipu_prg_channel_configure(struct ipuv3_channel *ipu_chan,
 	val = IPU_PRG_REG_UPDATE_REG_UPDATE;
 	writel(val, prg->regs + IPU_PRG_REG_UPDATE);
 
+	/* wait for both double buffers to be filled */
+	readl_poll_timeout(prg->regs + IPU_PRG_STATUS, val,
+			   (val & IPU_PRG_STATUS_BUFFER0_READY(prg_chan)) &&
+			   (val & IPU_PRG_STATUS_BUFFER1_READY(prg_chan)),
+			   5, 1000);
+
 	clk_disable_unprepare(prg->clk_ipg);
 
 	chan->enabled = true;
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 0a3117cc29e7..374301fcbc86 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -281,6 +281,7 @@ config HID_ELECOM
 	Support for ELECOM devices:
 	  - BM084 Bluetooth Mouse
 	  - DEFT Trackball (Wired and wireless)
+	  - HUGE Trackball (Wired and wireless)
 
 config HID_ELO
 	tristate "ELO USB 4000/4500 touchscreen"
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 8659d7e633a5..235bd2a7b333 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the HID driver
 #
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9bc91160819b..330ca983828b 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2032,6 +2032,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRED) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRELESS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRED) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRELESS) },
 #endif
 #if IS_ENABLED(CONFIG_HID_ELO)
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
diff --git a/drivers/hid/hid-elecom.c b/drivers/hid/hid-elecom.c
index e2c7465df69f..54aeea57d209 100644
--- a/drivers/hid/hid-elecom.c
+++ b/drivers/hid/hid-elecom.c
@@ -3,6 +3,7 @@
  *  Copyright (c) 2010 Richard Nauber <Richard.Nauber@gmail.com>
  *  Copyright (c) 2016 Yuxuan Shui <yshuiv7@gmail.com>
  *  Copyright (c) 2017 Diego Elio Pettenò <flameeyes@flameeyes.eu>
+ *  Copyright (c) 2017 Alex Manoussakis <amanou@gnu.org>
  */
 
 /*
@@ -32,9 +33,11 @@ static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		break;
 	case USB_DEVICE_ID_ELECOM_DEFT_WIRED:
 	case USB_DEVICE_ID_ELECOM_DEFT_WIRELESS:
-		/* The DEFT trackball has eight buttons, but its descriptor only
-		 * reports five, disabling the three Fn buttons on the top of
-		 * the mouse.
+	case USB_DEVICE_ID_ELECOM_HUGE_WIRED:
+	case USB_DEVICE_ID_ELECOM_HUGE_WIRELESS:
+		/* The DEFT/HUGE trackball has eight buttons, but its descriptor
+		 * only reports five, disabling the three Fn buttons on the top
+		 * of the mouse.
 		 *
 		 * Apply the following diff to the descriptor:
 		 *
@@ -62,7 +65,7 @@ static __u8 *elecom_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		 * End Collection,                     End Collection,
 		 */
 		if (*rsize == 213 && rdesc[13] == 5 && rdesc[21] == 5) {
-			hid_info(hdev, "Fixing up Elecom DEFT Fn buttons\n");
+			hid_info(hdev, "Fixing up Elecom DEFT/HUGE Fn buttons\n");
 			rdesc[13] = 8; /* Button/Variable Report Count */
 			rdesc[21] = 8; /* Button/Variable Usage Maximum */
 			rdesc[29] = 0; /* Button/Constant Report Count */
@@ -76,6 +79,8 @@ static const struct hid_device_id elecom_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRED) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_DEFT_WIRELESS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRED) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_HUGE_WIRELESS) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, elecom_devices);
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index b397a14ab970..be2e005c3c51 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -368,6 +368,8 @@
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
 #define USB_DEVICE_ID_ELECOM_DEFT_WIRED	0x00fe
 #define USB_DEVICE_ID_ELECOM_DEFT_WIRELESS	0x00ff
+#define USB_DEVICE_ID_ELECOM_HUGE_WIRED	0x010c
+#define USB_DEVICE_ID_ELECOM_HUGE_WIRELESS	0x010d
 
 #define USB_VENDOR_ID_DREAM_CHEEKY	0x1d34
 #define USB_DEVICE_ID_DREAM_CHEEKY_WN	0x0004
@@ -533,6 +535,7 @@
 #define USB_VENDOR_ID_IDEACOM		0x1cb6
 #define USB_DEVICE_ID_IDEACOM_IDC6650	0x6650
 #define USB_DEVICE_ID_IDEACOM_IDC6651	0x6651
+#define USB_DEVICE_ID_IDEACOM_IDC6680	0x6680
 
 #define USB_VENDOR_ID_ILITEK		0x222a
 #define USB_DEVICE_ID_ILITEK_MULTITOUCH	0x0001
@@ -660,6 +663,7 @@
 #define USB_DEVICE_ID_LENOVO_CBTKBD	0x6048
 #define USB_DEVICE_ID_LENOVO_TPPRODOCK	0x6067
 #define USB_DEVICE_ID_LENOVO_X1_COVER	0x6085
+#define USB_DEVICE_ID_LENOVO_X1_TAB	0x60a3
 
 #define USB_VENDOR_ID_LG		0x1fd2
 #define USB_DEVICE_ID_LG_MULTITOUCH	0x0064
diff --git a/drivers/hid/hid-lg.h b/drivers/hid/hid-lg.h
index 10dd8f024135..3d8902ba1c6c 100644
--- a/drivers/hid/hid-lg.h
+++ b/drivers/hid/hid-lg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HID_LG_H
 #define __HID_LG_H
 
diff --git a/drivers/hid/hid-lg4ff.h b/drivers/hid/hid-lg4ff.h
index de1f350e0bd3..e5c55d515ac2 100644
--- a/drivers/hid/hid-lg4ff.h
+++ b/drivers/hid/hid-lg4ff.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HID_LG4FF_H
 #define __HID_LG4FF_H
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 440b999304a5..9e8c4d2ba11d 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -930,6 +930,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	    field->application != HID_DG_PEN &&
 	    field->application != HID_DG_TOUCHPAD &&
 	    field->application != HID_GD_KEYBOARD &&
+	    field->application != HID_GD_SYSTEM_CONTROL &&
 	    field->application != HID_CP_CONSUMER_CONTROL &&
 	    field->application != HID_GD_WIRELESS_RADIO_CTLS &&
 	    !(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS &&
@@ -1419,6 +1420,12 @@ static const struct hid_device_id mt_devices[] = {
 			USB_VENDOR_ID_ALPS_JP,
 			HID_DEVICE_ID_ALPS_U1_DUAL_3BTN_PTP) },
 
+	/* Lenovo X1 TAB Gen 2 */
+	{ .driver_data = MT_CLS_WIN_8_DUAL,
+		HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8,
+			   USB_VENDOR_ID_LENOVO,
+			   USB_DEVICE_ID_LENOVO_X1_TAB) },
+
 	/* Anton devices */
 	{ .driver_data = MT_CLS_EXPORT_ALL_INPUTS,
 		MT_USB_DEVICE(USB_VENDOR_ID_ANTON,
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 5b40c2614599..ef241d66562e 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -436,17 +436,24 @@ static int rmi_post_resume(struct hid_device *hdev)
 	if (!(data->device_flags & RMI_DEVICE))
 		return 0;
 
-	ret = rmi_reset_attn_mode(hdev);
+	/* Make sure the HID device is ready to receive events */
+	ret = hid_hw_open(hdev);
 	if (ret)
 		return ret;
 
+	ret = rmi_reset_attn_mode(hdev);
+	if (ret)
+		goto out;
+
 	ret = rmi_driver_resume(rmi_dev, false);
 	if (ret) {
 		hid_warn(hdev, "Failed to resume device: %d\n", ret);
-		return ret;
+		goto out;
 	}
 
-	return 0;
+out:
+	hid_hw_close(hdev);
+	return ret;
 }
 #endif /* CONFIG_PM */
 
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index ec530454e6f6..5fbe0f81ab2e 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -337,8 +337,8 @@ static void drop_ref(struct hidraw *hidraw, int exists_bit)
 			kfree(hidraw);
 		} else {
 			/* close device for last reader */
-			hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
 			hid_hw_close(hidraw->hid);
+			hid_hw_power(hidraw->hid, PM_HINT_NORMAL);
 		}
 	}
 }
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index 77396145d2d0..9145c2129a96 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -543,7 +543,8 @@ static int i2c_hid_alloc_buffers(struct i2c_hid *ihid, size_t report_size)
 {
 	/* the worst case is computed from the set_report command with a
 	 * reportID > 15 and the maximum report length */
-	int args_len = sizeof(__u8) + /* optional ReportID byte */
+	int args_len = sizeof(__u8) + /* ReportID */
+		       sizeof(__u8) + /* optional ReportID byte */
 		       sizeof(__u16) + /* data register */
 		       sizeof(__u16) + /* size of the report */
 		       report_size; /* report */
diff --git a/drivers/hid/intel-ish-hid/Makefile b/drivers/hid/intel-ish-hid/Makefile
index 8c08b0b358b1..825b70af672f 100644
--- a/drivers/hid/intel-ish-hid/Makefile
+++ b/drivers/hid/intel-ish-hid/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - Intel ISH HID drivers
 # Copyright (c) 2014-2016, Intel Corporation.
diff --git a/drivers/hid/usbhid/Makefile b/drivers/hid/usbhid/Makefile
index 890f2914a8ff..0ff227d0c033 100644
--- a/drivers/hid/usbhid/Makefile
+++ b/drivers/hid/usbhid/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the USB input drivers
 #
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 089bad8a9a21..045b5da9b992 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -975,6 +975,8 @@ static int usbhid_parse(struct hid_device *hid)
 	unsigned int rsize = 0;
 	char *rdesc;
 	int ret, n;
+	int num_descriptors;
+	size_t offset = offsetof(struct hid_descriptor, desc);
 
 	quirks = usbhid_lookup_quirk(le16_to_cpu(dev->descriptor.idVendor),
 			le16_to_cpu(dev->descriptor.idProduct));
@@ -997,10 +999,18 @@ static int usbhid_parse(struct hid_device *hid)
 		return -ENODEV;
 	}
 
+	if (hdesc->bLength < sizeof(struct hid_descriptor)) {
+		dbg_hid("hid descriptor is too short\n");
+		return -EINVAL;
+	}
+
 	hid->version = le16_to_cpu(hdesc->bcdHID);
 	hid->country = hdesc->bCountryCode;
 
-	for (n = 0; n < hdesc->bNumDescriptors; n++)
+	num_descriptors = min_t(int, hdesc->bNumDescriptors,
+	       (hdesc->bLength - offset) / sizeof(struct hid_class_descriptor));
+
+	for (n = 0; n < num_descriptors; n++)
 		if (hdesc->desc[n].bDescriptorType == HID_DT_REPORT)
 			rsize = le16_to_cpu(hdesc->desc[n].wDescriptorLength);
 
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index a83fa76655b9..f489a5cfcb48 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -99,6 +99,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0A4A, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_LOGITECH_OEM_USB_OPTICAL_MOUSE_0B4A, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_HP, USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
+	{ USB_VENDOR_ID_IDEACOM, USB_DEVICE_ID_IDEACOM_IDC6680, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C007, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_KEYBOARD_G710_PLUS, HID_QUIRK_NOGET },
diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
index e82a696a1d07..906e654fb0ba 100644
--- a/drivers/hid/wacom_sys.c
+++ b/drivers/hid/wacom_sys.c
@@ -668,8 +668,10 @@ static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev)
 
 	/* Try to find an already-probed interface from the same device */
 	list_for_each_entry(data, &wacom_udev_list, list) {
-		if (compare_device_paths(hdev, data->dev, '/'))
+		if (compare_device_paths(hdev, data->dev, '/')) {
+			kref_get(&data->kref);
 			return data;
+		}
 	}
 
 	/* Fallback to finding devices that appear to be "siblings" */
@@ -766,6 +768,9 @@ static int wacom_led_control(struct wacom *wacom)
 	if (!wacom->led.groups)
 		return -ENOTSUPP;
 
+	if (wacom->wacom_wac.features.type == REMOTE)
+		return -ENOTSUPP;
+
 	if (wacom->wacom_wac.pid) { /* wireless connected */
 		report_id = WAC_CMD_WL_LED_CONTROL;
 		buf_size = 13;
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index bb17d7bbefd3..aa692e28b2cd 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -567,8 +567,8 @@ static int wacom_intuos_pad(struct wacom_wac *wacom)
 				keys = data[9] & 0x07;
 			}
 		} else {
-			buttons = ((data[6] & 0x10) << 10) |
-			          ((data[5] & 0x10) << 9)  |
+			buttons = ((data[6] & 0x10) << 5)  |
+			          ((data[5] & 0x10) << 4)  |
 			          ((data[6] & 0x0F) << 4)  |
 			          (data[5] & 0x0F);
 		}
@@ -1227,11 +1227,17 @@ static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
 			continue;
 
 		if (range) {
+			/* Fix rotation alignment: userspace expects zero at left */
+			int16_t rotation = (int16_t)get_unaligned_le16(&frame[9]);
+			rotation += 1800/4;
+			if (rotation > 899)
+				rotation -= 1800;
+
 			input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
 			input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
-			input_report_abs(pen_input, ABS_TILT_X, frame[7]);
-			input_report_abs(pen_input, ABS_TILT_Y, frame[8]);
-			input_report_abs(pen_input, ABS_Z, get_unaligned_le16(&frame[9]));
+			input_report_abs(pen_input, ABS_TILT_X, (char)frame[7]);
+			input_report_abs(pen_input, ABS_TILT_Y, (char)frame[8]);
+			input_report_abs(pen_input, ABS_Z, rotation);
 			input_report_abs(pen_input, ABS_WHEEL, get_unaligned_le16(&frame[11]));
 		}
 		input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
@@ -1319,12 +1325,19 @@ static void wacom_intuos_pro2_bt_pad(struct wacom_wac *wacom)
 	unsigned char *data = wacom->data;
 
 	int buttons = (data[282] << 1) | ((data[281] >> 6) & 0x01);
-	int ring = data[285];
-	int prox = buttons | (ring & 0x80);
+	int ring = data[285] & 0x7F;
+	bool ringstatus = data[285] & 0x80;
+	bool prox = buttons || ringstatus;
+
+	/* Fix touchring data: userspace expects 0 at left and increasing clockwise */
+	ring = 71 - ring;
+	ring += 3*72/16;
+	if (ring > 71)
+		ring -= 72;
 
 	wacom_report_numbered_buttons(pad_input, 9, buttons);
 
-	input_report_abs(pad_input, ABS_WHEEL, (ring & 0x80) ? (ring & 0x7f) : 0);
+	input_report_abs(pad_input, ABS_WHEEL, ringstatus ? ring : 0);
 
 	input_report_key(pad_input, wacom->tool[1], prox ? 1 : 0);
 	input_report_abs(pad_input, ABS_MISC, prox ? PAD_DEVICE_ID : 0);
@@ -1616,6 +1629,20 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
 	return 0;
 }
 
+static int wacom_offset_rotation(struct input_dev *input, struct hid_usage *usage,
+				 int value, int num, int denom)
+{
+	struct input_absinfo *abs = &input->absinfo[usage->code];
+	int range = (abs->maximum - abs->minimum + 1);
+
+	value += num*range/denom;
+	if (value > abs->maximum)
+		value -= range;
+	else if (value < abs->minimum)
+		value += range;
+	return value;
+}
+
 int wacom_equivalent_usage(int usage)
 {
 	if ((usage & HID_USAGE_PAGE) == WACOM_HID_UP_WACOMDIGITIZER) {
@@ -1898,6 +1925,7 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
 	unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
 	int i;
 	bool is_touch_on = value;
+	bool do_report = false;
 
 	/*
 	 * Avoid reporting this event and setting inrange_state if this usage
@@ -1912,6 +1940,29 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
 	}
 
 	switch (equivalent_usage) {
+	case WACOM_HID_WD_TOUCHRING:
+		/*
+		 * Userspace expects touchrings to increase in value with
+		 * clockwise gestures and have their zero point at the
+		 * tablet's left. HID events "should" be clockwise-
+		 * increasing and zero at top, though the MobileStudio
+		 * Pro and 2nd-gen Intuos Pro don't do this...
+		 */
+		if (hdev->vendor == 0x56a &&
+		    (hdev->product == 0x34d || hdev->product == 0x34e ||  /* MobileStudio Pro */
+		     hdev->product == 0x357 || hdev->product == 0x358)) { /* Intuos Pro 2 */
+			value = (field->logical_maximum - value);
+
+			if (hdev->product == 0x357 || hdev->product == 0x358)
+				value = wacom_offset_rotation(input, usage, value, 3, 16);
+			else if (hdev->product == 0x34d || hdev->product == 0x34e)
+				value = wacom_offset_rotation(input, usage, value, 1, 2);
+		}
+		else {
+			value = wacom_offset_rotation(input, usage, value, 1, 4);
+		}
+		do_report = true;
+		break;
 	case WACOM_HID_WD_TOUCHRINGSTATUS:
 		if (!value)
 			input_event(input, usage->type, usage->code, 0);
@@ -1945,10 +1996,14 @@ static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field
 					 value, i);
 		 /* fall through*/
 	default:
+		do_report = true;
+		break;
+	}
+
+	if (do_report) {
 		input_event(input, usage->type, usage->code, value);
 		if (value)
 			wacom_wac->hid_data.pad_input_event_flag = true;
-		break;
 	}
 }
 
@@ -2086,22 +2141,34 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
 		wacom_wac->hid_data.tipswitch |= value;
 		return;
 	case HID_DG_TOOLSERIALNUMBER:
-		wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
-		wacom_wac->serial[0] |= (__u32)value;
+		if (value) {
+			wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
+			wacom_wac->serial[0] |= (__u32)value;
+		}
 		return;
+	case HID_DG_TWIST:
+		/*
+		 * Userspace expects pen twist to have its zero point when
+		 * the buttons/finger is on the tablet's left. HID values
+		 * are zero when buttons are toward the top.
+		 */
+		value = wacom_offset_rotation(input, usage, value, 1, 4);
+		break;
 	case WACOM_HID_WD_SENSE:
 		wacom_wac->hid_data.sense_state = value;
 		return;
 	case WACOM_HID_WD_SERIALHI:
-		wacom_wac->serial[0] = (wacom_wac->serial[0] & 0xFFFFFFFF);
-		wacom_wac->serial[0] |= ((__u64)value) << 32;
-		/*
-		 * Non-USI EMR devices may contain additional tool type
-		 * information here. See WACOM_HID_WD_TOOLTYPE case for
-		 * more details.
-		 */
-		if (value >> 20 == 1) {
-			wacom_wac->id[0] |= value & 0xFFFFF;
+		if (value) {
+			wacom_wac->serial[0] = (wacom_wac->serial[0] & 0xFFFFFFFF);
+			wacom_wac->serial[0] |= ((__u64)value) << 32;
+			/*
+			 * Non-USI EMR devices may contain additional tool type
+			 * information here. See WACOM_HID_WD_TOOLTYPE case for
+			 * more details.
+			 */
+			if (value >> 20 == 1) {
+				wacom_wac->id[0] |= value & 0xFFFFF;
+			}
 		}
 		return;
 	case WACOM_HID_WD_TOOLTYPE:
@@ -2205,7 +2272,7 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
 		input_report_key(input, wacom_wac->tool[0], prox);
 		if (wacom_wac->serial[0]) {
 			input_event(input, EV_MSC, MSC_SERIAL, wacom_wac->serial[0]);
-			input_report_abs(input, ABS_MISC, id);
+			input_report_abs(input, ABS_MISC, prox ? id : 0);
 		}
 
 		wacom_wac->hid_data.tipswitch = false;
@@ -2216,6 +2283,7 @@ static void wacom_wac_pen_report(struct hid_device *hdev,
 	if (!prox) {
 		wacom_wac->tool[0] = 0;
 		wacom_wac->id[0] = 0;
+		wacom_wac->serial[0] = 0;
 	}
 }
 
diff --git a/drivers/hsi/Makefile b/drivers/hsi/Makefile
index 96944783d584..53c3bcdbf1b0 100644
--- a/drivers/hsi/Makefile
+++ b/drivers/hsi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for HSI
 #
diff --git a/drivers/hsi/clients/ssi_protocol.c b/drivers/hsi/clients/ssi_protocol.c
index 93d28c0ec8bf..9b167bc6eee4 100644
--- a/drivers/hsi/clients/ssi_protocol.c
+++ b/drivers/hsi/clients/ssi_protocol.c
@@ -464,10 +464,10 @@ static void ssip_error(struct hsi_client *cl)
 	hsi_async_read(cl, msg);
 }
 
-static void ssip_keep_alive(unsigned long data)
+static void ssip_keep_alive(struct timer_list *t)
 {
-	struct hsi_client *cl = (struct hsi_client *)data;
-	struct ssi_protocol *ssi = hsi_client_drvdata(cl);
+	struct ssi_protocol *ssi = from_timer(ssi, t, keep_alive);
+	struct hsi_client *cl = ssi->cl;
 
 	dev_dbg(&cl->device, "Keep alive kick in: m(%d) r(%d) s(%d)\n",
 		ssi->main_state, ssi->recv_state, ssi->send_state);
@@ -490,9 +490,19 @@ static void ssip_keep_alive(unsigned long data)
 	spin_unlock(&ssi->lock);
 }
 
-static void ssip_wd(unsigned long data)
+static void ssip_rx_wd(struct timer_list *t)
+{
+	struct ssi_protocol *ssi = from_timer(ssi, t, rx_wd);
+	struct hsi_client *cl = ssi->cl;
+
+	dev_err(&cl->device, "Watchdog trigerred\n");
+	ssip_error(cl);
+}
+
+static void ssip_tx_wd(struct timer_list *t)
 {
-	struct hsi_client *cl = (struct hsi_client *)data;
+	struct ssi_protocol *ssi = from_timer(ssi, t, tx_wd);
+	struct hsi_client *cl = ssi->cl;
 
 	dev_err(&cl->device, "Watchdog trigerred\n");
 	ssip_error(cl);
@@ -1084,15 +1094,9 @@ static int ssi_protocol_probe(struct device *dev)
 	}
 
 	spin_lock_init(&ssi->lock);
-	init_timer_deferrable(&ssi->rx_wd);
-	init_timer_deferrable(&ssi->tx_wd);
-	init_timer(&ssi->keep_alive);
-	ssi->rx_wd.data = (unsigned long)cl;
-	ssi->rx_wd.function = ssip_wd;
-	ssi->tx_wd.data = (unsigned long)cl;
-	ssi->tx_wd.function = ssip_wd;
-	ssi->keep_alive.data = (unsigned long)cl;
-	ssi->keep_alive.function = ssip_keep_alive;
+	timer_setup(&ssi->rx_wd, ssip_rx_wd, TIMER_DEFERRABLE);
+	timer_setup(&ssi->tx_wd, ssip_tx_wd, TIMER_DEFERRABLE);
+	timer_setup(&ssi->keep_alive, ssip_keep_alive, 0);
 	INIT_LIST_HEAD(&ssi->txqueue);
 	INIT_LIST_HEAD(&ssi->cmdqueue);
 	atomic_set(&ssi->tx_usecnt, 0);
diff --git a/drivers/hv/Makefile b/drivers/hv/Makefile
index 39c9b2c08d33..e7b1d796ba2e 100644
--- a/drivers/hv/Makefile
+++ b/drivers/hv/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_HYPERV)		+= hv_vmbus.o
 obj-$(CONFIG_HYPERV_UTILS)	+= hv_utils.o
 obj-$(CONFIG_HYPERV_BALLOON)	+= hv_balloon.o
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index efd5db743319..894b67ac2cae 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -640,6 +640,7 @@ void vmbus_close(struct vmbus_channel *channel)
 		 */
 		return;
 	}
+	mutex_lock(&vmbus_connection.channel_mutex);
 	/*
 	 * Close all the sub-channels first and then close the
 	 * primary channel.
@@ -648,16 +649,15 @@ void vmbus_close(struct vmbus_channel *channel)
 		cur_channel = list_entry(cur, struct vmbus_channel, sc_list);
 		vmbus_close_internal(cur_channel);
 		if (cur_channel->rescind) {
-			mutex_lock(&vmbus_connection.channel_mutex);
-			hv_process_channel_removal(cur_channel,
+			hv_process_channel_removal(
 					   cur_channel->offermsg.child_relid);
-			mutex_unlock(&vmbus_connection.channel_mutex);
 		}
 	}
 	/*
 	 * Now close the primary.
 	 */
 	vmbus_close_internal(channel);
+	mutex_unlock(&vmbus_connection.channel_mutex);
 }
 EXPORT_SYMBOL_GPL(vmbus_close);
 
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 060df71c2e8b..379b0df123be 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -159,7 +159,7 @@ static void vmbus_rescind_cleanup(struct vmbus_channel *channel)
 
 
 	spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);
-
+	channel->rescind = true;
 	list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list,
 				msglistentry) {
 
@@ -381,14 +381,21 @@ static void vmbus_release_relid(u32 relid)
 		       true);
 }
 
-void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid)
+void hv_process_channel_removal(u32 relid)
 {
 	unsigned long flags;
-	struct vmbus_channel *primary_channel;
+	struct vmbus_channel *primary_channel, *channel;
 
-	BUG_ON(!channel->rescind);
 	BUG_ON(!mutex_is_locked(&vmbus_connection.channel_mutex));
 
+	/*
+	 * Make sure channel is valid as we may have raced.
+	 */
+	channel = relid2channel(relid);
+	if (!channel)
+		return;
+
+	BUG_ON(!channel->rescind);
 	if (channel->target_cpu != get_cpu()) {
 		put_cpu();
 		smp_call_function_single(channel->target_cpu,
@@ -515,6 +522,7 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
 	if (!fnew) {
 		if (channel->sc_creation_callback != NULL)
 			channel->sc_creation_callback(newchannel);
+		newchannel->probe_done = true;
 		return;
 	}
 
@@ -834,7 +842,6 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 {
 	struct vmbus_channel_rescind_offer *rescind;
 	struct vmbus_channel *channel;
-	unsigned long flags;
 	struct device *dev;
 
 	rescind = (struct vmbus_channel_rescind_offer *)hdr;
@@ -873,16 +880,6 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 		return;
 	}
 
-	spin_lock_irqsave(&channel->lock, flags);
-	channel->rescind = true;
-	spin_unlock_irqrestore(&channel->lock, flags);
-
-	/*
-	 * Now that we have posted the rescind state, perform
-	 * rescind related cleanup.
-	 */
-	vmbus_rescind_cleanup(channel);
-
 	/*
 	 * Now wait for offer handling to complete.
 	 */
@@ -901,6 +898,7 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 	if (channel->device_obj) {
 		if (channel->chn_rescind_callback) {
 			channel->chn_rescind_callback(channel);
+			vmbus_rescind_cleanup(channel);
 			return;
 		}
 		/*
@@ -909,6 +907,7 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 		 */
 		dev = get_device(&channel->device_obj->device);
 		if (dev) {
+			vmbus_rescind_cleanup(channel);
 			vmbus_device_unregister(channel->device_obj);
 			put_device(dev);
 		}
@@ -921,29 +920,28 @@ static void vmbus_onoffer_rescind(struct vmbus_channel_message_header *hdr)
 		 * 1. Close all sub-channels first
 		 * 2. Then close the primary channel.
 		 */
+		mutex_lock(&vmbus_connection.channel_mutex);
+		vmbus_rescind_cleanup(channel);
 		if (channel->state == CHANNEL_OPEN_STATE) {
 			/*
 			 * The channel is currently not open;
 			 * it is safe for us to cleanup the channel.
 			 */
-			mutex_lock(&vmbus_connection.channel_mutex);
-			hv_process_channel_removal(channel,
-						channel->offermsg.child_relid);
-			mutex_unlock(&vmbus_connection.channel_mutex);
+			hv_process_channel_removal(rescind->child_relid);
 		}
+		mutex_unlock(&vmbus_connection.channel_mutex);
 	}
 }
 
 void vmbus_hvsock_device_unregister(struct vmbus_channel *channel)
 {
-	mutex_lock(&vmbus_connection.channel_mutex);
-
 	BUG_ON(!is_hvsock_channel(channel));
 
-	channel->rescind = true;
-	vmbus_device_unregister(channel->device_obj);
+	/* We always get a rescind msg when a connection is closed. */
+	while (!READ_ONCE(channel->probe_done) || !READ_ONCE(channel->rescind))
+		msleep(1);
 
-	mutex_unlock(&vmbus_connection.channel_mutex);
+	vmbus_device_unregister(channel->device_obj);
 }
 EXPORT_SYMBOL_GPL(vmbus_hvsock_device_unregister);
 
diff --git a/drivers/hv/hv_fcopy.c b/drivers/hv/hv_fcopy.c
index daa75bd41f86..2364281d8593 100644
--- a/drivers/hv/hv_fcopy.c
+++ b/drivers/hv/hv_fcopy.c
@@ -170,6 +170,10 @@ static void fcopy_send_data(struct work_struct *dummy)
 		out_src = smsg_out;
 		break;
 
+	case WRITE_TO_FILE:
+		out_src = fcopy_transaction.fcopy_msg;
+		out_len = sizeof(struct hv_do_fcopy);
+		break;
 	default:
 		out_src = fcopy_transaction.fcopy_msg;
 		out_len = fcopy_transaction.recv_len;
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index a9d49f6f6501..2cd134dd94d2 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -768,8 +768,7 @@ static void vmbus_device_release(struct device *device)
 	struct vmbus_channel *channel = hv_dev->channel;
 
 	mutex_lock(&vmbus_connection.channel_mutex);
-	hv_process_channel_removal(channel,
-				   channel->offermsg.child_relid);
+	hv_process_channel_removal(channel->offermsg.child_relid);
 	mutex_unlock(&vmbus_connection.channel_mutex);
 	kfree(hv_dev);
 
@@ -1535,7 +1534,7 @@ static int __init hv_acpi_init(void)
 {
 	int ret, t;
 
-	if (x86_hyper != &x86_hyper_ms_hyperv)
+	if (x86_hyper_type != X86_HYPER_MS_HYPERV)
 		return -ENODEV;
 
 	init_completion(&probe_event);
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d65431417b17..7ad017690e3a 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -552,6 +552,7 @@ config SENSORS_G762
 
 config SENSORS_GPIO_FAN
 	tristate "GPIO fan"
+	depends on OF_GPIO
 	depends on GPIOLIB || COMPILE_TEST
 	depends on THERMAL || THERMAL=n
 	help
@@ -862,6 +863,20 @@ tristate "MAX31722 temperature sensor"
 	  This driver can also be built as a module. If so, the module
 	  will be called max31722.
 
+config SENSORS_MAX6621
+	tristate "Maxim MAX6621 sensor chip"
+	depends on I2C
+	select REGMAP_I2C
+	help
+	  If you say yes here you get support for MAX6621 sensor chip.
+	  MAX6621 is a PECI-to-I2C translator provides an efficient,
+	  low-cost solution for PECI-to-SMBus/I2C protocol conversion.
+	  It allows reading the temperature from the PECI-compliant
+	  host directly from up to four PECI-enabled CPUs.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called max6621.
+
 config SENSORS_MAX6639
 	tristate "Maxim MAX6639 sensor chip"
 	depends on I2C
diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
index c84d9784be98..0fe489fab663 100644
--- a/drivers/hwmon/Makefile
+++ b/drivers/hwmon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for sensor chip drivers.
 #
@@ -117,6 +118,7 @@ obj-$(CONFIG_SENSORS_MAX1619)	+= max1619.o
 obj-$(CONFIG_SENSORS_MAX1668)	+= max1668.o
 obj-$(CONFIG_SENSORS_MAX197)	+= max197.o
 obj-$(CONFIG_SENSORS_MAX31722)	+= max31722.o
+obj-$(CONFIG_SENSORS_MAX6621)	+= max6621.o
 obj-$(CONFIG_SENSORS_MAX6639)	+= max6639.o
 obj-$(CONFIG_SENSORS_MAX6642)	+= max6642.o
 obj-$(CONFIG_SENSORS_MAX6650)	+= max6650.o
diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 579bdf93be43..14a94d90c028 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -973,7 +973,7 @@ static int __init enable_cap_knobs(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pm_dmi_table[] = {
+static const struct dmi_system_id pm_dmi_table[] __initconst = {
 	{
 		enable_cap_knobs, "IBM Active Energy Manager",
 		{
diff --git a/drivers/hwmon/adt7x10.h b/drivers/hwmon/adt7x10.h
index d491c698529e..21ad15ce3163 100644
--- a/drivers/hwmon/adt7x10.h
+++ b/drivers/hwmon/adt7x10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HWMON_ADT7X10_H__
 #define __HWMON_ADT7X10_H__
 
diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c
index 76c34f4fde13..5c677ba44014 100644
--- a/drivers/hwmon/applesmc.c
+++ b/drivers/hwmon/applesmc.c
@@ -1247,7 +1247,7 @@ static int applesmc_dmi_match(const struct dmi_system_id *id)
  * Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1".
  * So we need to put "Apple MacBook Pro" before "Apple MacBook".
  */
-static __initdata struct dmi_system_id applesmc_whitelist[] = {
+static const struct dmi_system_id applesmc_whitelist[] __initconst = {
 	{ applesmc_dmi_match, "Apple MacBook Air", {
 	  DMI_MATCH(DMI_BOARD_VENDOR, "Apple"),
 	  DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") },
diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c
index 4875e99b59c9..6d34c05a4f83 100644
--- a/drivers/hwmon/asc7621.c
+++ b/drivers/hwmon/asc7621.c
@@ -579,7 +579,6 @@ static ssize_t show_pwm_enable(struct device *dev,
 	mutex_unlock(&data->update_lock);
 
 	val = config | (altbit << 3);
-	newval = 0;
 
 	if (val == 3 || val >= 10)
 		newval = 255;
diff --git a/drivers/hwmon/aspeed-pwm-tacho.c b/drivers/hwmon/aspeed-pwm-tacho.c
index 69b97d45e3cb..63a95e23ca81 100644
--- a/drivers/hwmon/aspeed-pwm-tacho.c
+++ b/drivers/hwmon/aspeed-pwm-tacho.c
@@ -7,19 +7,19 @@
  */
 
 #include <linux/clk.h>
+#include <linux/delay.h>
 #include <linux/errno.h>
 #include <linux/gpio/consumer.h>
-#include <linux/delay.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_platform.h>
 #include <linux/of_device.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
-#include <linux/sysfs.h>
 #include <linux/regmap.h>
+#include <linux/sysfs.h>
 #include <linux/thermal.h>
 
 /* ASPEED PWM & FAN Tach Register Definition */
@@ -161,7 +161,7 @@
  * 11: reserved.
  */
 #define M_TACH_MODE 0x02 /* 10b */
-#define M_TACH_UNIT 0x00c0
+#define M_TACH_UNIT 0x0210
 #define INIT_FAN_CTRL 0xFF
 
 /* How long we sleep in us while waiting for an RPM result. */
diff --git a/drivers/hwmon/da9052-hwmon.c b/drivers/hwmon/da9052-hwmon.c
index 97a62f5b9ea4..a973eb6a2890 100644
--- a/drivers/hwmon/da9052-hwmon.c
+++ b/drivers/hwmon/da9052-hwmon.c
@@ -477,6 +477,11 @@ static int da9052_hwmon_probe(struct platform_device *pdev)
 		/* disable touchscreen features */
 		da9052_reg_write(hwmon->da9052, DA9052_TSI_CONT_A_REG, 0x00);
 
+		/* Sample every 1ms */
+		da9052_reg_update(hwmon->da9052, DA9052_ADC_CONT_REG,
+					  DA9052_ADCCONT_ADCMODE,
+					  DA9052_ADCCONT_ADCMODE);
+
 		err = da9052_request_irq(hwmon->da9052, DA9052_IRQ_TSIREADY,
 					 "tsiready-irq", da9052_tsi_datardy_irq,
 					 hwmon);
diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 3189246302a6..c7c9e95e58a8 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -890,7 +890,7 @@ static const struct i8k_config_data i8k_config_data[] = {
 	},
 };
 
-static struct dmi_system_id i8k_dmi_table[] __initdata = {
+static const struct dmi_system_id i8k_dmi_table[] __initconst = {
 	{
 		.ident = "Dell Inspiron",
 		.matches = {
@@ -1013,7 +1013,7 @@ MODULE_DEVICE_TABLE(dmi, i8k_dmi_table);
  * of affected Dell machines for which we disallow I8K_SMM_GET_FAN_TYPE call.
  * See bug: https://bugzilla.kernel.org/show_bug.cgi?id=100121
  */
-static struct dmi_system_id i8k_blacklist_fan_type_dmi_table[] __initdata = {
+static const struct dmi_system_id i8k_blacklist_fan_type_dmi_table[] __initconst = {
 	{
 		.ident = "Dell Studio XPS 8000",
 		.matches = {
diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index 9c355b9d31c5..5c9a52599cf6 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -29,21 +29,24 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/hwmon.h>
-#include <linux/gpio.h>
-#include <linux/gpio-fan.h>
+#include <linux/gpio/consumer.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
-#include <linux/of_gpio.h>
 #include <linux/thermal.h>
 
+struct gpio_fan_speed {
+	int rpm;
+	int ctrl_val;
+};
+
 struct gpio_fan_data {
-	struct platform_device	*pdev;
+	struct device		*dev;
 	struct device		*hwmon_dev;
 	/* Cooling device if any */
 	struct thermal_cooling_device *cdev;
 	struct mutex		lock; /* lock GPIOs operations. */
-	int			num_ctrl;
-	unsigned		*ctrl;
+	int			num_gpios;
+	struct gpio_desc	**gpios;
 	int			num_speed;
 	struct gpio_fan_speed	*speed;
 	int			speed_index;
@@ -51,7 +54,7 @@ struct gpio_fan_data {
 	int			resume_speed;
 #endif
 	bool			pwm_enable;
-	struct gpio_fan_alarm	*alarm;
+	struct gpio_desc	*alarm_gpio;
 	struct work_struct	alarm_work;
 };
 
@@ -64,8 +67,8 @@ static void fan_alarm_notify(struct work_struct *ws)
 	struct gpio_fan_data *fan_data =
 		container_of(ws, struct gpio_fan_data, alarm_work);
 
-	sysfs_notify(&fan_data->pdev->dev.kobj, NULL, "fan1_alarm");
-	kobject_uevent(&fan_data->pdev->dev.kobj, KOBJ_CHANGE);
+	sysfs_notify(&fan_data->dev->kobj, NULL, "fan1_alarm");
+	kobject_uevent(&fan_data->dev->kobj, KOBJ_CHANGE);
 }
 
 static irqreturn_t fan_alarm_irq_handler(int irq, void *dev_id)
@@ -81,47 +84,30 @@ static ssize_t fan1_alarm_show(struct device *dev,
 			       struct device_attribute *attr, char *buf)
 {
 	struct gpio_fan_data *fan_data = dev_get_drvdata(dev);
-	struct gpio_fan_alarm *alarm = fan_data->alarm;
-	int value = gpio_get_value_cansleep(alarm->gpio);
 
-	if (alarm->active_low)
-		value = !value;
-
-	return sprintf(buf, "%d\n", value);
+	return sprintf(buf, "%d\n",
+		       gpiod_get_value_cansleep(fan_data->alarm_gpio));
 }
 
 static DEVICE_ATTR_RO(fan1_alarm);
 
-static int fan_alarm_init(struct gpio_fan_data *fan_data,
-			  struct gpio_fan_alarm *alarm)
+static int fan_alarm_init(struct gpio_fan_data *fan_data)
 {
-	int err;
 	int alarm_irq;
-	struct platform_device *pdev = fan_data->pdev;
-
-	fan_data->alarm = alarm;
-
-	err = devm_gpio_request(&pdev->dev, alarm->gpio, "GPIO fan alarm");
-	if (err)
-		return err;
-
-	err = gpio_direction_input(alarm->gpio);
-	if (err)
-		return err;
+	struct device *dev = fan_data->dev;
 
 	/*
 	 * If the alarm GPIO don't support interrupts, just leave
 	 * without initializing the fail notification support.
 	 */
-	alarm_irq = gpio_to_irq(alarm->gpio);
-	if (alarm_irq < 0)
+	alarm_irq = gpiod_to_irq(fan_data->alarm_gpio);
+	if (alarm_irq <= 0)
 		return 0;
 
 	INIT_WORK(&fan_data->alarm_work, fan_alarm_notify);
 	irq_set_irq_type(alarm_irq, IRQ_TYPE_EDGE_BOTH);
-	err = devm_request_irq(&pdev->dev, alarm_irq, fan_alarm_irq_handler,
-			       IRQF_SHARED, "GPIO fan alarm", fan_data);
-	return err;
+	return devm_request_irq(dev, alarm_irq, fan_alarm_irq_handler,
+				IRQF_SHARED, "GPIO fan alarm", fan_data);
 }
 
 /*
@@ -133,8 +119,9 @@ static void __set_fan_ctrl(struct gpio_fan_data *fan_data, int ctrl_val)
 {
 	int i;
 
-	for (i = 0; i < fan_data->num_ctrl; i++)
-		gpio_set_value_cansleep(fan_data->ctrl[i], (ctrl_val >> i) & 1);
+	for (i = 0; i < fan_data->num_gpios; i++)
+		gpiod_set_value_cansleep(fan_data->gpios[i],
+					 (ctrl_val >> i) & 1);
 }
 
 static int __get_fan_ctrl(struct gpio_fan_data *fan_data)
@@ -142,10 +129,10 @@ static int __get_fan_ctrl(struct gpio_fan_data *fan_data)
 	int i;
 	int ctrl_val = 0;
 
-	for (i = 0; i < fan_data->num_ctrl; i++) {
+	for (i = 0; i < fan_data->num_gpios; i++) {
 		int value;
 
-		value = gpio_get_value_cansleep(fan_data->ctrl[i]);
+		value = gpiod_get_value_cansleep(fan_data->gpios[i]);
 		ctrl_val |= (value << i);
 	}
 	return ctrl_val;
@@ -170,7 +157,7 @@ static int get_fan_speed_index(struct gpio_fan_data *fan_data)
 		if (fan_data->speed[i].ctrl_val == ctrl_val)
 			return i;
 
-	dev_warn(&fan_data->pdev->dev,
+	dev_warn(fan_data->dev,
 		 "missing speed array entry for GPIO value 0x%x\n", ctrl_val);
 
 	return -ENODEV;
@@ -328,9 +315,9 @@ static umode_t gpio_fan_is_visible(struct kobject *kobj,
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct gpio_fan_data *data = dev_get_drvdata(dev);
 
-	if (index == 0 && !data->alarm)
+	if (index == 0 && !data->alarm_gpio)
 		return 0;
-	if (index > 0 && !data->ctrl)
+	if (index > 0 && !data->gpios)
 		return 0;
 
 	return attr->mode;
@@ -358,30 +345,25 @@ static const struct attribute_group *gpio_fan_groups[] = {
 	NULL
 };
 
-static int fan_ctrl_init(struct gpio_fan_data *fan_data,
-			 struct gpio_fan_platform_data *pdata)
+static int fan_ctrl_init(struct gpio_fan_data *fan_data)
 {
-	struct platform_device *pdev = fan_data->pdev;
-	int num_ctrl = pdata->num_ctrl;
-	unsigned *ctrl = pdata->ctrl;
+	int num_gpios = fan_data->num_gpios;
+	struct gpio_desc **gpios = fan_data->gpios;
 	int i, err;
 
-	for (i = 0; i < num_ctrl; i++) {
-		err = devm_gpio_request(&pdev->dev, ctrl[i],
-					"GPIO fan control");
-		if (err)
-			return err;
-
-		err = gpio_direction_output(ctrl[i],
-					    gpio_get_value_cansleep(ctrl[i]));
+	for (i = 0; i < num_gpios; i++) {
+		/*
+		 * The GPIO descriptors were retrieved with GPIOD_ASIS so here
+		 * we set the GPIO into output mode, carefully preserving the
+		 * current value by setting it to whatever it is already set
+		 * (no surprise changes in default fan speed).
+		 */
+		err = gpiod_direction_output(gpios[i],
+					gpiod_get_value_cansleep(gpios[i]));
 		if (err)
 			return err;
 	}
 
-	fan_data->num_ctrl = num_ctrl;
-	fan_data->ctrl = ctrl;
-	fan_data->num_speed = pdata->num_speed;
-	fan_data->speed = pdata->speed;
 	fan_data->pwm_enable = true; /* Enable manual fan speed control. */
 	fan_data->speed_index = get_fan_speed_index(fan_data);
 	if (fan_data->speed_index < 0)
@@ -432,67 +414,47 @@ static const struct thermal_cooling_device_ops gpio_fan_cool_ops = {
 	.set_cur_state = gpio_fan_set_cur_state,
 };
 
-#ifdef CONFIG_OF_GPIO
 /*
  * Translate OpenFirmware node properties into platform_data
  */
-static int gpio_fan_get_of_pdata(struct device *dev,
-			    struct gpio_fan_platform_data *pdata)
+static int gpio_fan_get_of_data(struct gpio_fan_data *fan_data)
 {
-	struct device_node *node;
 	struct gpio_fan_speed *speed;
-	unsigned *ctrl;
+	struct device *dev = fan_data->dev;
+	struct device_node *np = dev->of_node;
+	struct gpio_desc **gpios;
 	unsigned i;
 	u32 u;
 	struct property *prop;
 	const __be32 *p;
 
-	node = dev->of_node;
-
 	/* Alarm GPIO if one exists */
-	if (of_gpio_named_count(node, "alarm-gpios") > 0) {
-		struct gpio_fan_alarm *alarm;
-		int val;
-		enum of_gpio_flags flags;
-
-		alarm = devm_kzalloc(dev, sizeof(struct gpio_fan_alarm),
-					GFP_KERNEL);
-		if (!alarm)
-			return -ENOMEM;
-
-		val = of_get_named_gpio_flags(node, "alarm-gpios", 0, &flags);
-		if (val < 0)
-			return val;
-		alarm->gpio = val;
-		alarm->active_low = flags & OF_GPIO_ACTIVE_LOW;
-
-		pdata->alarm = alarm;
-	}
+	fan_data->alarm_gpio = devm_gpiod_get_optional(dev, "alarm", GPIOD_IN);
+	if (IS_ERR(fan_data->alarm_gpio))
+		return PTR_ERR(fan_data->alarm_gpio);
 
 	/* Fill GPIO pin array */
-	pdata->num_ctrl = of_gpio_count(node);
-	if (pdata->num_ctrl <= 0) {
-		if (pdata->alarm)
+	fan_data->num_gpios = gpiod_count(dev, NULL);
+	if (fan_data->num_gpios <= 0) {
+		if (fan_data->alarm_gpio)
 			return 0;
 		dev_err(dev, "DT properties empty / missing");
 		return -ENODEV;
 	}
-	ctrl = devm_kzalloc(dev, pdata->num_ctrl * sizeof(unsigned),
-				GFP_KERNEL);
-	if (!ctrl)
+	gpios = devm_kzalloc(dev,
+			     fan_data->num_gpios * sizeof(struct gpio_desc *),
+			     GFP_KERNEL);
+	if (!gpios)
 		return -ENOMEM;
-	for (i = 0; i < pdata->num_ctrl; i++) {
-		int val;
-
-		val = of_get_gpio(node, i);
-		if (val < 0)
-			return val;
-		ctrl[i] = val;
+	for (i = 0; i < fan_data->num_gpios; i++) {
+		gpios[i] = devm_gpiod_get_index(dev, NULL, i, GPIOD_ASIS);
+		if (IS_ERR(gpios[i]))
+			return PTR_ERR(gpios[i]);
 	}
-	pdata->ctrl = ctrl;
+	fan_data->gpios = gpios;
 
 	/* Get number of RPM/ctrl_val pairs in speed map */
-	prop = of_find_property(node, "gpio-fan,speed-map", &i);
+	prop = of_find_property(np, "gpio-fan,speed-map", &i);
 	if (!prop) {
 		dev_err(dev, "gpio-fan,speed-map DT property missing");
 		return -ENODEV;
@@ -502,7 +464,7 @@ static int gpio_fan_get_of_pdata(struct device *dev,
 		dev_err(dev, "gpio-fan,speed-map contains zero/odd number of entries");
 		return -ENODEV;
 	}
-	pdata->num_speed = i / 2;
+	fan_data->num_speed = i / 2;
 
 	/*
 	 * Populate speed map
@@ -510,12 +472,12 @@ static int gpio_fan_get_of_pdata(struct device *dev,
 	 * this needs splitting into pairs to create gpio_fan_speed structs
 	 */
 	speed = devm_kzalloc(dev,
-			pdata->num_speed * sizeof(struct gpio_fan_speed),
+			fan_data->num_speed * sizeof(struct gpio_fan_speed),
 			GFP_KERNEL);
 	if (!speed)
 		return -ENOMEM;
 	p = NULL;
-	for (i = 0; i < pdata->num_speed; i++) {
+	for (i = 0; i < fan_data->num_speed; i++) {
 		p = of_prop_next_u32(prop, p, &u);
 		if (!p)
 			return -ENODEV;
@@ -525,7 +487,7 @@ static int gpio_fan_get_of_pdata(struct device *dev,
 			return -ENODEV;
 		speed[i].ctrl_val = u;
 	}
-	pdata->speed = speed;
+	fan_data->speed = speed;
 
 	return 0;
 }
@@ -535,76 +497,58 @@ static const struct of_device_id of_gpio_fan_match[] = {
 	{},
 };
 MODULE_DEVICE_TABLE(of, of_gpio_fan_match);
-#endif /* CONFIG_OF_GPIO */
 
 static int gpio_fan_probe(struct platform_device *pdev)
 {
 	int err;
 	struct gpio_fan_data *fan_data;
-	struct gpio_fan_platform_data *pdata = dev_get_platdata(&pdev->dev);
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
 
-	fan_data = devm_kzalloc(&pdev->dev, sizeof(struct gpio_fan_data),
+	fan_data = devm_kzalloc(dev, sizeof(struct gpio_fan_data),
 				GFP_KERNEL);
 	if (!fan_data)
 		return -ENOMEM;
 
-#ifdef CONFIG_OF_GPIO
-	if (!pdata) {
-		pdata = devm_kzalloc(&pdev->dev,
-					sizeof(struct gpio_fan_platform_data),
-					GFP_KERNEL);
-		if (!pdata)
-			return -ENOMEM;
-
-		err = gpio_fan_get_of_pdata(&pdev->dev, pdata);
-		if (err)
-			return err;
-	}
-#else /* CONFIG_OF_GPIO */
-	if (!pdata)
-		return -EINVAL;
-#endif /* CONFIG_OF_GPIO */
+	fan_data->dev = dev;
+	err = gpio_fan_get_of_data(fan_data);
+	if (err)
+		return err;
 
-	fan_data->pdev = pdev;
 	platform_set_drvdata(pdev, fan_data);
 	mutex_init(&fan_data->lock);
 
 	/* Configure alarm GPIO if available. */
-	if (pdata->alarm) {
-		err = fan_alarm_init(fan_data, pdata->alarm);
+	if (fan_data->alarm_gpio) {
+		err = fan_alarm_init(fan_data);
 		if (err)
 			return err;
 	}
 
 	/* Configure control GPIOs if available. */
-	if (pdata->ctrl && pdata->num_ctrl > 0) {
-		if (!pdata->speed || pdata->num_speed <= 1)
+	if (fan_data->gpios && fan_data->num_gpios > 0) {
+		if (!fan_data->speed || fan_data->num_speed <= 1)
 			return -EINVAL;
-		err = fan_ctrl_init(fan_data, pdata);
+		err = fan_ctrl_init(fan_data);
 		if (err)
 			return err;
 	}
 
 	/* Make this driver part of hwmon class. */
 	fan_data->hwmon_dev =
-		devm_hwmon_device_register_with_groups(&pdev->dev,
+		devm_hwmon_device_register_with_groups(dev,
 						       "gpio_fan", fan_data,
 						       gpio_fan_groups);
 	if (IS_ERR(fan_data->hwmon_dev))
 		return PTR_ERR(fan_data->hwmon_dev);
-#ifdef CONFIG_OF_GPIO
+
 	/* Optional cooling device register for Device tree platforms */
-	fan_data->cdev = thermal_of_cooling_device_register(pdev->dev.of_node,
+	fan_data->cdev = thermal_of_cooling_device_register(np,
 							    "gpio-fan",
 							    fan_data,
 							    &gpio_fan_cool_ops);
-#else /* CONFIG_OF_GPIO */
-	/* Optional cooling device register for non Device tree platforms */
-	fan_data->cdev = thermal_cooling_device_register("gpio-fan", fan_data,
-							 &gpio_fan_cool_ops);
-#endif /* CONFIG_OF_GPIO */
 
-	dev_info(&pdev->dev, "GPIO fan initialized\n");
+	dev_info(dev, "GPIO fan initialized\n");
 
 	return 0;
 }
@@ -616,7 +560,7 @@ static int gpio_fan_remove(struct platform_device *pdev)
 	if (!IS_ERR(fan_data->cdev))
 		thermal_cooling_device_unregister(fan_data->cdev);
 
-	if (fan_data->ctrl)
+	if (fan_data->gpios)
 		set_fan_speed(fan_data, 0);
 
 	return 0;
@@ -632,7 +576,7 @@ static int gpio_fan_suspend(struct device *dev)
 {
 	struct gpio_fan_data *fan_data = dev_get_drvdata(dev);
 
-	if (fan_data->ctrl) {
+	if (fan_data->gpios) {
 		fan_data->resume_speed = fan_data->speed_index;
 		set_fan_speed(fan_data, 0);
 	}
@@ -644,7 +588,7 @@ static int gpio_fan_resume(struct device *dev)
 {
 	struct gpio_fan_data *fan_data = dev_get_drvdata(dev);
 
-	if (fan_data->ctrl)
+	if (fan_data->gpios)
 		set_fan_speed(fan_data, fan_data->resume_speed);
 
 	return 0;
@@ -663,9 +607,7 @@ static struct platform_driver gpio_fan_driver = {
 	.driver	= {
 		.name	= "gpio-fan",
 		.pm	= GPIO_FAN_PM,
-#ifdef CONFIG_OF_GPIO
 		.of_match_table = of_match_ptr(of_gpio_fan_match),
-#endif
 	},
 };
 
diff --git a/drivers/hwmon/k10temp.c b/drivers/hwmon/k10temp.c
index ce3b91f22e30..46a54ed23410 100644
--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -36,6 +36,10 @@ MODULE_PARM_DESC(force, "force loading on processors with erratum 319");
 /* Provide lock for writing to NB_SMU_IND_ADDR */
 static DEFINE_MUTEX(nb_smu_ind_mutex);
 
+#ifndef PCI_DEVICE_ID_AMD_17H_DF_F3
+#define PCI_DEVICE_ID_AMD_17H_DF_F3	0x1463
+#endif
+
 /* CPUID function 0x80000001, ebx */
 #define CPUID_PKGTYPE_MASK	0xf0000000
 #define CPUID_PKGTYPE_F		0x00000000
@@ -61,31 +65,72 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
  */
 #define F15H_M60H_REPORTED_TEMP_CTRL_OFFSET	0xd8200ca4
 
-static void amd_nb_smu_index_read(struct pci_dev *pdev, unsigned int devfn,
-				  int offset, u32 *val)
+/* F17h M01h Access througn SMN */
+#define F17H_M01H_REPORTED_TEMP_CTRL_OFFSET	0x00059800
+
+struct k10temp_data {
+	struct pci_dev *pdev;
+	void (*read_tempreg)(struct pci_dev *pdev, u32 *regval);
+	int temp_offset;
+};
+
+struct tctl_offset {
+	u8 model;
+	char const *id;
+	int offset;
+};
+
+static const struct tctl_offset tctl_offset_table[] = {
+	{ 0x17, "AMD Ryzen 7 1600X", 20000 },
+	{ 0x17, "AMD Ryzen 7 1700X", 20000 },
+	{ 0x17, "AMD Ryzen 7 1800X", 20000 },
+	{ 0x17, "AMD Ryzen Threadripper 1950X", 27000 },
+	{ 0x17, "AMD Ryzen Threadripper 1920X", 27000 },
+	{ 0x17, "AMD Ryzen Threadripper 1950", 10000 },
+	{ 0x17, "AMD Ryzen Threadripper 1920", 10000 },
+	{ 0x17, "AMD Ryzen Threadripper 1910", 10000 },
+};
+
+static void read_tempreg_pci(struct pci_dev *pdev, u32 *regval)
+{
+	pci_read_config_dword(pdev, REG_REPORTED_TEMPERATURE, regval);
+}
+
+static void amd_nb_index_read(struct pci_dev *pdev, unsigned int devfn,
+			      unsigned int base, int offset, u32 *val)
 {
 	mutex_lock(&nb_smu_ind_mutex);
 	pci_bus_write_config_dword(pdev->bus, devfn,
-				   0xb8, offset);
+				   base, offset);
 	pci_bus_read_config_dword(pdev->bus, devfn,
-				  0xbc, val);
+				  base + 4, val);
 	mutex_unlock(&nb_smu_ind_mutex);
 }
 
+static void read_tempreg_nb_f15(struct pci_dev *pdev, u32 *regval)
+{
+	amd_nb_index_read(pdev, PCI_DEVFN(0, 0), 0xb8,
+			  F15H_M60H_REPORTED_TEMP_CTRL_OFFSET, regval);
+}
+
+static void read_tempreg_nb_f17(struct pci_dev *pdev, u32 *regval)
+{
+	amd_nb_index_read(pdev, PCI_DEVFN(0, 0), 0x60,
+			  F17H_M01H_REPORTED_TEMP_CTRL_OFFSET, regval);
+}
+
 static ssize_t temp1_input_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
+	struct k10temp_data *data = dev_get_drvdata(dev);
 	u32 regval;
-	struct pci_dev *pdev = dev_get_drvdata(dev);
-
-	if (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model == 0x60) {
-		amd_nb_smu_index_read(pdev, PCI_DEVFN(0, 0),
-				      F15H_M60H_REPORTED_TEMP_CTRL_OFFSET,
-				      &regval);
-	} else {
-		pci_read_config_dword(pdev, REG_REPORTED_TEMPERATURE, &regval);
-	}
-	return sprintf(buf, "%u\n", (regval >> 21) * 125);
+	unsigned int temp;
+
+	data->read_tempreg(data->pdev, &regval);
+	temp = (regval >> 21) * 125;
+	temp -= data->temp_offset;
+
+	return sprintf(buf, "%u\n", temp);
 }
 
 static ssize_t temp1_max_show(struct device *dev,
@@ -98,11 +143,12 @@ static ssize_t show_temp_crit(struct device *dev,
 			      struct device_attribute *devattr, char *buf)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct k10temp_data *data = dev_get_drvdata(dev);
 	int show_hyst = attr->index;
 	u32 regval;
 	int value;
 
-	pci_read_config_dword(dev_get_drvdata(dev),
+	pci_read_config_dword(data->pdev,
 			      REG_HARDWARE_THERMAL_CONTROL, &regval);
 	value = ((regval >> 16) & 0x7f) * 500 + 52000;
 	if (show_hyst)
@@ -119,7 +165,8 @@ static umode_t k10temp_is_visible(struct kobject *kobj,
 				  struct attribute *attr, int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
-	struct pci_dev *pdev = dev_get_drvdata(dev);
+	struct k10temp_data *data = dev_get_drvdata(dev);
+	struct pci_dev *pdev = data->pdev;
 
 	if (index >= 2) {
 		u32 reg_caps, reg_htc;
@@ -187,7 +234,9 @@ static int k10temp_probe(struct pci_dev *pdev,
 {
 	int unreliable = has_erratum_319(pdev);
 	struct device *dev = &pdev->dev;
+	struct k10temp_data *data;
 	struct device *hwmon_dev;
+	int i;
 
 	if (unreliable) {
 		if (!force) {
@@ -199,7 +248,31 @@ static int k10temp_probe(struct pci_dev *pdev,
 			 "unreliable CPU thermal sensor; check erratum 319\n");
 	}
 
-	hwmon_dev = devm_hwmon_device_register_with_groups(dev, "k10temp", pdev,
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->pdev = pdev;
+
+	if (boot_cpu_data.x86 == 0x15 && (boot_cpu_data.x86_model == 0x60 ||
+					  boot_cpu_data.x86_model == 0x70))
+		data->read_tempreg = read_tempreg_nb_f15;
+	else if (boot_cpu_data.x86 == 0x17)
+		data->read_tempreg = read_tempreg_nb_f17;
+	else
+		data->read_tempreg = read_tempreg_pci;
+
+	for (i = 0; i < ARRAY_SIZE(tctl_offset_table); i++) {
+		const struct tctl_offset *entry = &tctl_offset_table[i];
+
+		if (boot_cpu_data.x86 == entry->model &&
+		    strstr(boot_cpu_data.x86_model_id, entry->id)) {
+			data->temp_offset = entry->offset;
+			break;
+		}
+	}
+
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, "k10temp", data,
 							   k10temp_groups);
 	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
@@ -214,6 +287,7 @@ static const struct pci_device_id k10temp_id_table[] = {
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_15H_M60H_NB_F3) },
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_NB_F3) },
 	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_16H_M30H_NB_F3) },
+	{ PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_17H_DF_F3) },
 	{}
 };
 MODULE_DEVICE_TABLE(pci, k10temp_id_table);
diff --git a/drivers/hwmon/max1619.c b/drivers/hwmon/max1619.c
index a18278938494..76d966932941 100644
--- a/drivers/hwmon/max1619.c
+++ b/drivers/hwmon/max1619.c
@@ -303,10 +303,20 @@ static const struct i2c_device_id max1619_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max1619_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id max1619_of_match[] = {
+	{ .compatible = "maxim,max1619", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, max1619_of_match);
+#endif
+
 static struct i2c_driver max1619_driver = {
 	.class		= I2C_CLASS_HWMON,
 	.driver = {
 		.name	= "max1619",
+		.of_match_table = of_match_ptr(max1619_of_match),
 	},
 	.probe		= max1619_probe,
 	.id_table	= max1619_id,
diff --git a/drivers/hwmon/max6621.c b/drivers/hwmon/max6621.c
new file mode 100644
index 000000000000..35555f0eefb9
--- /dev/null
+++ b/drivers/hwmon/max6621.c
@@ -0,0 +1,593 @@
+/*
+ * Hardware monitoring driver for Maxim MAX6621
+ *
+ * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2017 Vadim Pasternak <vadimp@mellanox.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/bitops.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/regmap.h>
+
+#define MAX6621_DRV_NAME		"max6621"
+#define MAX6621_TEMP_INPUT_REG_NUM	9
+#define MAX6621_TEMP_INPUT_MIN		-127000
+#define MAX6621_TEMP_INPUT_MAX		128000
+#define MAX6621_TEMP_ALERT_CHAN_SHIFT	1
+
+#define MAX6621_TEMP_S0D0_REG		0x00
+#define MAX6621_TEMP_S0D1_REG		0x01
+#define MAX6621_TEMP_S1D0_REG		0x02
+#define MAX6621_TEMP_S1D1_REG		0x03
+#define MAX6621_TEMP_S2D0_REG		0x04
+#define MAX6621_TEMP_S2D1_REG		0x05
+#define MAX6621_TEMP_S3D0_REG		0x06
+#define MAX6621_TEMP_S3D1_REG		0x07
+#define MAX6621_TEMP_MAX_REG		0x08
+#define MAX6621_TEMP_MAX_ADDR_REG	0x0a
+#define MAX6621_TEMP_ALERT_CAUSE_REG	0x0b
+#define MAX6621_CONFIG0_REG		0x0c
+#define MAX6621_CONFIG1_REG		0x0d
+#define MAX6621_CONFIG2_REG		0x0e
+#define MAX6621_CONFIG3_REG		0x0f
+#define MAX6621_TEMP_S0_ALERT_REG	0x10
+#define MAX6621_TEMP_S1_ALERT_REG	0x11
+#define MAX6621_TEMP_S2_ALERT_REG	0x12
+#define MAX6621_TEMP_S3_ALERT_REG	0x13
+#define MAX6621_CLEAR_ALERT_REG		0x15
+#define MAX6621_REG_MAX			(MAX6621_CLEAR_ALERT_REG + 1)
+#define MAX6621_REG_TEMP_SHIFT		0x06
+
+#define MAX6621_ENABLE_TEMP_ALERTS_BIT	4
+#define MAX6621_ENABLE_I2C_CRC_BIT	5
+#define MAX6621_ENABLE_ALTERNATE_DATA	6
+#define MAX6621_ENABLE_LOCKUP_TO	7
+#define MAX6621_ENABLE_S0D0_BIT		8
+#define MAX6621_ENABLE_S3D1_BIT		15
+#define MAX6621_ENABLE_TEMP_ALL		GENMASK(MAX6621_ENABLE_S3D1_BIT, \
+						MAX6621_ENABLE_S0D0_BIT)
+#define MAX6621_POLL_DELAY_MASK		0x5
+#define MAX6621_CONFIG0_INIT		(MAX6621_ENABLE_TEMP_ALL | \
+					 BIT(MAX6621_ENABLE_LOCKUP_TO) | \
+					 BIT(MAX6621_ENABLE_I2C_CRC_BIT) | \
+					 MAX6621_POLL_DELAY_MASK)
+#define MAX6621_PECI_BIT_TIME		0x2
+#define MAX6621_PECI_RETRY_NUM		0x3
+#define MAX6621_CONFIG1_INIT		((MAX6621_PECI_BIT_TIME << 8) | \
+					 MAX6621_PECI_RETRY_NUM)
+
+/* Error codes */
+#define MAX6621_TRAN_FAILED	0x8100	/*
+					 * PECI transaction failed for more
+					 * than the configured number of
+					 * consecutive retries.
+					 */
+#define MAX6621_POOL_DIS	0x8101	/*
+					 * Polling disabled for requested
+					 * socket/domain.
+					 */
+#define MAX6621_POOL_UNCOMPLETE	0x8102	/*
+					 * First poll not yet completed for
+					 * requested socket/domain (on
+					 * startup).
+					 */
+#define MAX6621_SD_DIS		0x8103	/*
+					 * Read maximum temperature requested,
+					 * but no sockets/domains enabled or
+					 * all enabled sockets/domains have
+					 * errors; or read maximum temperature
+					 * address requested, but read maximum
+					 * temperature was not called.
+					 */
+#define MAX6621_ALERT_DIS	0x8104	/*
+					 * Get alert socket/domain requested,
+					 * but no alert active.
+					 */
+#define MAX6621_PECI_ERR_MIN	0x8000	/* Intel spec PECI error min value. */
+#define MAX6621_PECI_ERR_MAX	0x80ff	/* Intel spec PECI error max value. */
+
+static const u32 max6621_temp_regs[] = {
+	MAX6621_TEMP_MAX_REG, MAX6621_TEMP_S0D0_REG, MAX6621_TEMP_S1D0_REG,
+	MAX6621_TEMP_S2D0_REG, MAX6621_TEMP_S3D0_REG, MAX6621_TEMP_S0D1_REG,
+	MAX6621_TEMP_S1D1_REG, MAX6621_TEMP_S2D1_REG, MAX6621_TEMP_S3D1_REG,
+};
+
+static const char *const max6621_temp_labels[] = {
+	"maximum",
+	"socket0_0",
+	"socket1_0",
+	"socket2_0",
+	"socket3_0",
+	"socket0_1",
+	"socket1_1",
+	"socket2_1",
+	"socket3_1",
+};
+
+static const int max6621_temp_alert_chan2reg[] = {
+	MAX6621_TEMP_S0_ALERT_REG,
+	MAX6621_TEMP_S1_ALERT_REG,
+	MAX6621_TEMP_S2_ALERT_REG,
+	MAX6621_TEMP_S3_ALERT_REG,
+};
+
+/**
+ * struct max6621_data - private data:
+ *
+ * @client: I2C client;
+ * @regmap: register map handle;
+ * @input_chan2reg: mapping from channel to register;
+ */
+struct max6621_data {
+	struct i2c_client	*client;
+	struct regmap		*regmap;
+	int			input_chan2reg[MAX6621_TEMP_INPUT_REG_NUM + 1];
+};
+
+static long max6621_temp_mc2reg(long val)
+{
+	return (val / 1000L) << MAX6621_REG_TEMP_SHIFT;
+}
+
+static umode_t
+max6621_is_visible(const void *data, enum hwmon_sensor_types type, u32 attr,
+		   int channel)
+{
+	/* Skip channels which are not physically conncted. */
+	if (((struct max6621_data *)data)->input_chan2reg[channel] < 0)
+		return 0;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_input:
+		case hwmon_temp_label:
+		case hwmon_temp_crit_alarm:
+			return 0444;
+		case hwmon_temp_offset:
+		case hwmon_temp_crit:
+			return 0644;
+		default:
+			break;
+		}
+
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int max6621_verify_reg_data(struct device *dev, int regval)
+{
+	if (regval >= MAX6621_PECI_ERR_MIN &&
+	    regval <= MAX6621_PECI_ERR_MAX) {
+		dev_dbg(dev, "PECI error code - err 0x%04x.\n",
+			regval);
+
+		return -EIO;
+	}
+
+	switch (regval) {
+	case MAX6621_TRAN_FAILED:
+		dev_dbg(dev, "PECI transaction failed - err 0x%04x.\n",
+			regval);
+		return -EIO;
+	case MAX6621_POOL_DIS:
+		dev_dbg(dev, "Polling disabled - err 0x%04x.\n", regval);
+		return -EOPNOTSUPP;
+	case MAX6621_POOL_UNCOMPLETE:
+		dev_dbg(dev, "First poll not completed on startup - err 0x%04x.\n",
+			regval);
+		return -EIO;
+	case MAX6621_SD_DIS:
+		dev_dbg(dev, "Resource is disabled - err 0x%04x.\n", regval);
+		return -EOPNOTSUPP;
+	case MAX6621_ALERT_DIS:
+		dev_dbg(dev, "No alert active - err 0x%04x.\n", regval);
+		return -EOPNOTSUPP;
+	default:
+		return 0;
+	}
+}
+
+static int
+max6621_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+	     int channel, long *val)
+{
+	struct max6621_data *data = dev_get_drvdata(dev);
+	u32 regval;
+	int reg;
+	s8 temp;
+	int ret;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_input:
+			reg = data->input_chan2reg[channel];
+			ret = regmap_read(data->regmap, reg, &regval);
+			if (ret)
+				return ret;
+
+			ret = max6621_verify_reg_data(dev, regval);
+			if (ret)
+				return ret;
+
+			/*
+			 * Bit MAX6621_REG_TEMP_SHIFT represents 1 degree step.
+			 * The temperature is given in two's complement and 8
+			 * bits is used for the register conversion.
+			 */
+			temp = (regval >> MAX6621_REG_TEMP_SHIFT);
+			*val = temp * 1000L;
+
+			break;
+		case hwmon_temp_offset:
+			ret = regmap_read(data->regmap, MAX6621_CONFIG2_REG,
+					  &regval);
+			if (ret)
+				return ret;
+
+			ret = max6621_verify_reg_data(dev, regval);
+			if (ret)
+				return ret;
+
+			*val = (regval >> MAX6621_REG_TEMP_SHIFT) *
+			       1000L;
+
+			break;
+		case hwmon_temp_crit:
+			channel -= MAX6621_TEMP_ALERT_CHAN_SHIFT;
+			reg = max6621_temp_alert_chan2reg[channel];
+			ret = regmap_read(data->regmap, reg, &regval);
+			if (ret)
+				return ret;
+
+			ret = max6621_verify_reg_data(dev, regval);
+			if (ret)
+				return ret;
+
+			*val = regval * 1000L;
+
+			break;
+		case hwmon_temp_crit_alarm:
+			/*
+			 * Set val to zero to recover the case, when reading
+			 * MAX6621_TEMP_ALERT_CAUSE_REG results in for example
+			 * MAX6621_ALERT_DIS. Reading will return with error,
+			 * but in such case alarm should be returned as 0.
+			 */
+			*val = 0;
+			ret = regmap_read(data->regmap,
+					  MAX6621_TEMP_ALERT_CAUSE_REG,
+					  &regval);
+			if (ret)
+				return ret;
+
+			ret = max6621_verify_reg_data(dev, regval);
+			if (ret) {
+				/* Do not report error if alert is disabled. */
+				if (regval == MAX6621_ALERT_DIS)
+					return 0;
+				else
+					return ret;
+			}
+
+			/*
+			 * Clear the alert automatically, using send-byte
+			 * smbus protocol for clearing alert.
+			 */
+			if (regval) {
+				ret = i2c_smbus_write_byte(data->client,
+						MAX6621_CLEAR_ALERT_REG);
+				if (ret)
+					return ret;
+			}
+
+			*val = !!regval;
+
+			break;
+		default:
+			return -EOPNOTSUPP;
+		}
+		break;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int
+max6621_write(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+	      int channel, long val)
+{
+	struct max6621_data *data = dev_get_drvdata(dev);
+	u32 reg;
+
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_offset:
+			/* Clamp to allowed range to prevent overflow. */
+			val = clamp_val(val, MAX6621_TEMP_INPUT_MIN,
+					MAX6621_TEMP_INPUT_MAX);
+			val = max6621_temp_mc2reg(val);
+
+			return regmap_write(data->regmap,
+					    MAX6621_CONFIG2_REG, val);
+		case hwmon_temp_crit:
+			channel -= MAX6621_TEMP_ALERT_CHAN_SHIFT;
+			reg = max6621_temp_alert_chan2reg[channel];
+			/* Clamp to allowed range to prevent overflow. */
+			val = clamp_val(val, MAX6621_TEMP_INPUT_MIN,
+					MAX6621_TEMP_INPUT_MAX);
+			val = val / 1000L;
+
+			return regmap_write(data->regmap, reg, val);
+		default:
+			return -EOPNOTSUPP;
+		}
+		break;
+
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int
+max6621_read_string(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+		    int channel, const char **str)
+{
+	switch (type) {
+	case hwmon_temp:
+		switch (attr) {
+		case hwmon_temp_label:
+			*str = max6621_temp_labels[channel];
+			return 0;
+		default:
+			return -EOPNOTSUPP;
+		}
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static bool max6621_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX6621_CONFIG0_REG:
+	case MAX6621_CONFIG1_REG:
+	case MAX6621_CONFIG2_REG:
+	case MAX6621_CONFIG3_REG:
+	case MAX6621_TEMP_S0_ALERT_REG:
+	case MAX6621_TEMP_S1_ALERT_REG:
+	case MAX6621_TEMP_S2_ALERT_REG:
+	case MAX6621_TEMP_S3_ALERT_REG:
+	case MAX6621_TEMP_ALERT_CAUSE_REG:
+		return true;
+	}
+	return false;
+}
+
+static bool max6621_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX6621_TEMP_S0D0_REG:
+	case MAX6621_TEMP_S0D1_REG:
+	case MAX6621_TEMP_S1D0_REG:
+	case MAX6621_TEMP_S1D1_REG:
+	case MAX6621_TEMP_S2D0_REG:
+	case MAX6621_TEMP_S2D1_REG:
+	case MAX6621_TEMP_S3D0_REG:
+	case MAX6621_TEMP_S3D1_REG:
+	case MAX6621_TEMP_MAX_REG:
+	case MAX6621_TEMP_MAX_ADDR_REG:
+	case MAX6621_CONFIG0_REG:
+	case MAX6621_CONFIG1_REG:
+	case MAX6621_CONFIG2_REG:
+	case MAX6621_CONFIG3_REG:
+	case MAX6621_TEMP_S0_ALERT_REG:
+	case MAX6621_TEMP_S1_ALERT_REG:
+	case MAX6621_TEMP_S2_ALERT_REG:
+	case MAX6621_TEMP_S3_ALERT_REG:
+		return true;
+	}
+	return false;
+}
+
+static bool max6621_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MAX6621_TEMP_S0D0_REG:
+	case MAX6621_TEMP_S0D1_REG:
+	case MAX6621_TEMP_S1D0_REG:
+	case MAX6621_TEMP_S1D1_REG:
+	case MAX6621_TEMP_S2D0_REG:
+	case MAX6621_TEMP_S2D1_REG:
+	case MAX6621_TEMP_S3D0_REG:
+	case MAX6621_TEMP_S3D1_REG:
+	case MAX6621_TEMP_MAX_REG:
+	case MAX6621_TEMP_S0_ALERT_REG:
+	case MAX6621_TEMP_S1_ALERT_REG:
+	case MAX6621_TEMP_S2_ALERT_REG:
+	case MAX6621_TEMP_S3_ALERT_REG:
+	case MAX6621_TEMP_ALERT_CAUSE_REG:
+		return true;
+	}
+	return false;
+}
+
+static const struct reg_default max6621_regmap_default[] = {
+	{ MAX6621_CONFIG0_REG, MAX6621_CONFIG0_INIT },
+	{ MAX6621_CONFIG1_REG, MAX6621_CONFIG1_INIT },
+};
+
+static const struct regmap_config max6621_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.max_register = MAX6621_REG_MAX,
+	.val_format_endian = REGMAP_ENDIAN_LITTLE,
+	.cache_type = REGCACHE_FLAT,
+	.writeable_reg = max6621_writeable_reg,
+	.readable_reg = max6621_readable_reg,
+	.volatile_reg = max6621_volatile_reg,
+	.reg_defaults = max6621_regmap_default,
+	.num_reg_defaults = ARRAY_SIZE(max6621_regmap_default),
+};
+
+static u32 max6621_chip_config[] = {
+	HWMON_C_REGISTER_TZ,
+	0
+};
+
+static const struct hwmon_channel_info max6621_chip = {
+	.type = hwmon_chip,
+	.config = max6621_chip_config,
+};
+
+static const u32 max6621_temp_config[] = {
+	HWMON_T_INPUT | HWMON_T_LABEL | HWMON_T_OFFSET,
+	HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_CRIT | HWMON_T_CRIT_ALARM | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_LABEL,
+	HWMON_T_INPUT | HWMON_T_LABEL,
+	0
+};
+
+static const struct hwmon_channel_info max6621_temp = {
+	.type = hwmon_temp,
+	.config = max6621_temp_config,
+};
+
+static const struct hwmon_channel_info *max6621_info[] = {
+	&max6621_chip,
+	&max6621_temp,
+	NULL
+};
+
+static const struct hwmon_ops max6621_hwmon_ops = {
+	.read = max6621_read,
+	.write = max6621_write,
+	.read_string = max6621_read_string,
+	.is_visible = max6621_is_visible,
+};
+
+static const struct hwmon_chip_info max6621_chip_info = {
+	.ops = &max6621_hwmon_ops,
+	.info = max6621_info,
+};
+
+static int max6621_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct max6621_data *data;
+	struct device *hwmon_dev;
+	int i;
+	int ret;
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->regmap = devm_regmap_init_i2c(client, &max6621_regmap_config);
+	if (IS_ERR(data->regmap))
+		return PTR_ERR(data->regmap);
+
+	i2c_set_clientdata(client, data);
+	data->client = client;
+
+	/* Set CONFIG0 register masking temperature alerts and PEC. */
+	ret = regmap_write(data->regmap, MAX6621_CONFIG0_REG,
+			   MAX6621_CONFIG0_INIT);
+	if (ret)
+		return ret;
+
+	/* Set CONFIG1 register for PEC access retry number. */
+	ret = regmap_write(data->regmap, MAX6621_CONFIG1_REG,
+			   MAX6621_CONFIG1_INIT);
+	if (ret)
+		return ret;
+
+	/* Sync registers with hardware. */
+	regcache_mark_dirty(data->regmap);
+	ret = regcache_sync(data->regmap);
+	if (ret)
+		return ret;
+
+	/* Verify which temperature input registers are enabled. */
+	for (i = 0; i < MAX6621_TEMP_INPUT_REG_NUM; i++) {
+		ret = i2c_smbus_read_word_data(client, max6621_temp_regs[i]);
+		if (ret < 0)
+			return ret;
+		ret = max6621_verify_reg_data(dev, ret);
+		if (ret) {
+			data->input_chan2reg[i] = -1;
+			continue;
+		}
+
+		data->input_chan2reg[i] = max6621_temp_regs[i];
+	}
+
+	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
+							 data,
+							 &max6621_chip_info,
+							 NULL);
+
+	return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+static const struct i2c_device_id max6621_id[] = {
+	{ MAX6621_DRV_NAME, 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, max6621_id);
+
+static const struct of_device_id max6621_of_match[] = {
+	{ .compatible = "maxim,max6621" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, max6621_of_match);
+
+static struct i2c_driver max6621_driver = {
+	.class		= I2C_CLASS_HWMON,
+	.driver = {
+		.name = MAX6621_DRV_NAME,
+		.of_match_table = of_match_ptr(max6621_of_match),
+	},
+	.probe		= max6621_probe,
+	.id_table	= max6621_id,
+};
+
+module_i2c_driver(max6621_driver);
+
+MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
+MODULE_DESCRIPTION("Driver for Maxim MAX6621");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 40019325b517..08479006c7f9 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -114,6 +114,16 @@ config SENSORS_MAX20751
 	  This driver can also be built as a module. If so, the module will
 	  be called max20751.
 
+config SENSORS_MAX31785
+	tristate "Maxim MAX31785 and compatibles"
+	default n
+	help
+	  If you say yes here you get hardware monitoring support for Maxim
+	  MAX31785.
+
+	  This driver can also be built as a module. If so, the module will
+	  be called max31785.
+
 config SENSORS_MAX34440
 	tristate "Maxim MAX34440 and compatibles"
 	default n
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index 459a6be3390e..ea0e39518c21 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for PMBus chip drivers.
 #
@@ -12,6 +13,7 @@ obj-$(CONFIG_SENSORS_LTC2978)	+= ltc2978.o
 obj-$(CONFIG_SENSORS_LTC3815)	+= ltc3815.o
 obj-$(CONFIG_SENSORS_MAX16064)	+= max16064.o
 obj-$(CONFIG_SENSORS_MAX20751)	+= max20751.o
+obj-$(CONFIG_SENSORS_MAX31785)	+= max31785.o
 obj-$(CONFIG_SENSORS_MAX34440)	+= max34440.o
 obj-$(CONFIG_SENSORS_MAX8688)	+= max8688.o
 obj-$(CONFIG_SENSORS_TPS40422)	+= tps40422.o
diff --git a/drivers/hwmon/pmbus/max31785.c b/drivers/hwmon/pmbus/max31785.c
new file mode 100644
index 000000000000..9313849d5160
--- /dev/null
+++ b/drivers/hwmon/pmbus/max31785.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2017 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include "pmbus.h"
+
+enum max31785_regs {
+	MFR_REVISION		= 0x9b,
+};
+
+#define MAX31785_NR_PAGES		23
+
+#define MAX31785_FAN_FUNCS \
+	(PMBUS_HAVE_FAN12 | PMBUS_HAVE_STATUS_FAN12)
+
+#define MAX31785_TEMP_FUNCS \
+	(PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP)
+
+#define MAX31785_VOUT_FUNCS \
+	(PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT)
+
+static const struct pmbus_driver_info max31785_info = {
+	.pages = MAX31785_NR_PAGES,
+
+	/* RPM */
+	.format[PSC_FAN] = direct,
+	.m[PSC_FAN] = 1,
+	.b[PSC_FAN] = 0,
+	.R[PSC_FAN] = 0,
+	.func[0] = MAX31785_FAN_FUNCS,
+	.func[1] = MAX31785_FAN_FUNCS,
+	.func[2] = MAX31785_FAN_FUNCS,
+	.func[3] = MAX31785_FAN_FUNCS,
+	.func[4] = MAX31785_FAN_FUNCS,
+	.func[5] = MAX31785_FAN_FUNCS,
+
+	.format[PSC_TEMPERATURE] = direct,
+	.m[PSC_TEMPERATURE] = 1,
+	.b[PSC_TEMPERATURE] = 0,
+	.R[PSC_TEMPERATURE] = 2,
+	.func[6]  = MAX31785_TEMP_FUNCS,
+	.func[7]  = MAX31785_TEMP_FUNCS,
+	.func[8]  = MAX31785_TEMP_FUNCS,
+	.func[9]  = MAX31785_TEMP_FUNCS,
+	.func[10] = MAX31785_TEMP_FUNCS,
+	.func[11] = MAX31785_TEMP_FUNCS,
+	.func[12] = MAX31785_TEMP_FUNCS,
+	.func[13] = MAX31785_TEMP_FUNCS,
+	.func[14] = MAX31785_TEMP_FUNCS,
+	.func[15] = MAX31785_TEMP_FUNCS,
+	.func[16] = MAX31785_TEMP_FUNCS,
+
+	.format[PSC_VOLTAGE_OUT] = direct,
+	.m[PSC_VOLTAGE_OUT] = 1,
+	.b[PSC_VOLTAGE_OUT] = 0,
+	.R[PSC_VOLTAGE_OUT] = 0,
+	.func[17] = MAX31785_VOUT_FUNCS,
+	.func[18] = MAX31785_VOUT_FUNCS,
+	.func[19] = MAX31785_VOUT_FUNCS,
+	.func[20] = MAX31785_VOUT_FUNCS,
+	.func[21] = MAX31785_VOUT_FUNCS,
+	.func[22] = MAX31785_VOUT_FUNCS,
+};
+
+static int max31785_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	struct device *dev = &client->dev;
+	struct pmbus_driver_info *info;
+	s64 ret;
+
+	info = devm_kzalloc(dev, sizeof(struct pmbus_driver_info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	*info = max31785_info;
+
+	ret = i2c_smbus_write_byte_data(client, PMBUS_PAGE, 255);
+	if (ret < 0)
+		return ret;
+
+	return pmbus_do_probe(client, id, info);
+}
+
+static const struct i2c_device_id max31785_id[] = {
+	{ "max31785", 0 },
+	{ "max31785a", 0 },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(i2c, max31785_id);
+
+static struct i2c_driver max31785_driver = {
+	.driver = {
+		.name = "max31785",
+	},
+	.probe = max31785_probe,
+	.remove = pmbus_do_remove,
+	.id_table = max31785_id,
+};
+
+module_i2c_driver(max31785_driver);
+
+MODULE_AUTHOR("Andrew Jeffery <andrew@aj.id.au>");
+MODULE_DESCRIPTION("PMBus driver for the Maxim MAX31785");
+MODULE_LICENSE("GPL");
diff --git a/drivers/hwmon/pmbus/pmbus.h b/drivers/hwmon/pmbus/pmbus.h
index 4efa2bd4f6d8..fa613bd209e3 100644
--- a/drivers/hwmon/pmbus/pmbus.h
+++ b/drivers/hwmon/pmbus/pmbus.h
@@ -404,9 +404,9 @@ extern const struct regulator_ops pmbus_regulator_ops;
 /* Function declarations */
 
 void pmbus_clear_cache(struct i2c_client *client);
-int pmbus_set_page(struct i2c_client *client, u8 page);
-int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg);
-int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word);
+int pmbus_set_page(struct i2c_client *client, int page);
+int pmbus_read_word_data(struct i2c_client *client, int page, u8 reg);
+int pmbus_write_word_data(struct i2c_client *client, int page, u8 reg, u16 word);
 int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg);
 int pmbus_write_byte(struct i2c_client *client, int page, u8 value);
 int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg,
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 302f0aef59de..52a58b8b6e1b 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -136,13 +136,13 @@ void pmbus_clear_cache(struct i2c_client *client)
 }
 EXPORT_SYMBOL_GPL(pmbus_clear_cache);
 
-int pmbus_set_page(struct i2c_client *client, u8 page)
+int pmbus_set_page(struct i2c_client *client, int page)
 {
 	struct pmbus_data *data = i2c_get_clientdata(client);
 	int rv = 0;
 	int newpage;
 
-	if (page != data->currpage) {
+	if (page >= 0 && page != data->currpage) {
 		rv = i2c_smbus_write_byte_data(client, PMBUS_PAGE, page);
 		newpage = i2c_smbus_read_byte_data(client, PMBUS_PAGE);
 		if (newpage != page)
@@ -158,11 +158,9 @@ int pmbus_write_byte(struct i2c_client *client, int page, u8 value)
 {
 	int rv;
 
-	if (page >= 0) {
-		rv = pmbus_set_page(client, page);
-		if (rv < 0)
-			return rv;
-	}
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
 
 	return i2c_smbus_write_byte(client, value);
 }
@@ -186,7 +184,8 @@ static int _pmbus_write_byte(struct i2c_client *client, int page, u8 value)
 	return pmbus_write_byte(client, page, value);
 }
 
-int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word)
+int pmbus_write_word_data(struct i2c_client *client, int page, u8 reg,
+			  u16 word)
 {
 	int rv;
 
@@ -219,7 +218,7 @@ static int _pmbus_write_word_data(struct i2c_client *client, int page, int reg,
 	return pmbus_write_word_data(client, page, reg, word);
 }
 
-int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg)
+int pmbus_read_word_data(struct i2c_client *client, int page, u8 reg)
 {
 	int rv;
 
@@ -255,11 +254,9 @@ int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg)
 {
 	int rv;
 
-	if (page >= 0) {
-		rv = pmbus_set_page(client, page);
-		if (rv < 0)
-			return rv;
-	}
+	rv = pmbus_set_page(client, page);
+	if (rv < 0)
+		return rv;
 
 	return i2c_smbus_read_byte_data(client, reg);
 }
diff --git a/drivers/hwmon/sht15.c b/drivers/hwmon/sht15.c
index e4d642b673c6..25d28343ba93 100644
--- a/drivers/hwmon/sht15.c
+++ b/drivers/hwmon/sht15.c
@@ -18,13 +18,11 @@
 
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <linux/gpio.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/mutex.h>
-#include <linux/platform_data/sht15.h>
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/delay.h>
@@ -34,7 +32,8 @@
 #include <linux/slab.h>
 #include <linux/atomic.h>
 #include <linux/bitrev.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of.h>
 
 /* Commands */
 #define SHT15_MEASURE_TEMP		0x03
@@ -122,7 +121,8 @@ static const u8 sht15_crc8_table[] = {
 
 /**
  * struct sht15_data - device instance specific data
- * @pdata:		platform data (gpio's etc).
+ * @sck:		clock GPIO line
+ * @data:		data GPIO line
  * @read_work:		bh of interrupt handler.
  * @wait_queue:		wait queue for getting values from device.
  * @val_temp:		last temperature value read from device.
@@ -150,7 +150,8 @@ static const u8 sht15_crc8_table[] = {
  * @interrupt_handled:	flag used to indicate a handler has been scheduled.
  */
 struct sht15_data {
-	struct sht15_platform_data	*pdata;
+	struct gpio_desc		*sck;
+	struct gpio_desc		*data;
 	struct work_struct		read_work;
 	wait_queue_head_t		wait_queue;
 	uint16_t			val_temp;
@@ -205,16 +206,16 @@ static int sht15_connection_reset(struct sht15_data *data)
 {
 	int i, err;
 
-	err = gpio_direction_output(data->pdata->gpio_data, 1);
+	err = gpiod_direction_output(data->data, 1);
 	if (err)
 		return err;
 	ndelay(SHT15_TSCKL);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL);
 	for (i = 0; i < 9; ++i) {
-		gpio_set_value(data->pdata->gpio_sck, 1);
+		gpiod_set_value(data->sck, 1);
 		ndelay(SHT15_TSCKH);
-		gpio_set_value(data->pdata->gpio_sck, 0);
+		gpiod_set_value(data->sck, 0);
 		ndelay(SHT15_TSCKL);
 	}
 	return 0;
@@ -227,11 +228,11 @@ static int sht15_connection_reset(struct sht15_data *data)
  */
 static inline void sht15_send_bit(struct sht15_data *data, int val)
 {
-	gpio_set_value(data->pdata->gpio_data, val);
+	gpiod_set_value(data->data, val);
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 1);
+	gpiod_set_value(data->sck, 1);
 	ndelay(SHT15_TSCKH);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL); /* clock low time */
 }
 
@@ -248,23 +249,23 @@ static int sht15_transmission_start(struct sht15_data *data)
 	int err;
 
 	/* ensure data is high and output */
-	err = gpio_direction_output(data->pdata->gpio_data, 1);
+	err = gpiod_direction_output(data->data, 1);
 	if (err)
 		return err;
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL);
-	gpio_set_value(data->pdata->gpio_sck, 1);
+	gpiod_set_value(data->sck, 1);
 	ndelay(SHT15_TSCKH);
-	gpio_set_value(data->pdata->gpio_data, 0);
+	gpiod_set_value(data->data, 0);
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL);
-	gpio_set_value(data->pdata->gpio_sck, 1);
+	gpiod_set_value(data->sck, 1);
 	ndelay(SHT15_TSCKH);
-	gpio_set_value(data->pdata->gpio_data, 1);
+	gpiod_set_value(data->data, 1);
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL);
 	return 0;
 }
@@ -292,20 +293,20 @@ static int sht15_wait_for_response(struct sht15_data *data)
 {
 	int err;
 
-	err = gpio_direction_input(data->pdata->gpio_data);
+	err = gpiod_direction_input(data->data);
 	if (err)
 		return err;
-	gpio_set_value(data->pdata->gpio_sck, 1);
+	gpiod_set_value(data->sck, 1);
 	ndelay(SHT15_TSCKH);
-	if (gpio_get_value(data->pdata->gpio_data)) {
-		gpio_set_value(data->pdata->gpio_sck, 0);
+	if (gpiod_get_value(data->data)) {
+		gpiod_set_value(data->sck, 0);
 		dev_err(data->dev, "Command not acknowledged\n");
 		err = sht15_connection_reset(data);
 		if (err)
 			return err;
 		return -EIO;
 	}
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL);
 	return 0;
 }
@@ -360,17 +361,17 @@ static int sht15_ack(struct sht15_data *data)
 {
 	int err;
 
-	err = gpio_direction_output(data->pdata->gpio_data, 0);
+	err = gpiod_direction_output(data->data, 0);
 	if (err)
 		return err;
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 1);
+	gpiod_set_value(data->sck, 1);
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_data, 1);
+	gpiod_set_value(data->data, 1);
 
-	return gpio_direction_input(data->pdata->gpio_data);
+	return gpiod_direction_input(data->data);
 }
 
 /**
@@ -383,13 +384,13 @@ static int sht15_end_transmission(struct sht15_data *data)
 {
 	int err;
 
-	err = gpio_direction_output(data->pdata->gpio_data, 1);
+	err = gpiod_direction_output(data->data, 1);
 	if (err)
 		return err;
 	ndelay(SHT15_TSU);
-	gpio_set_value(data->pdata->gpio_sck, 1);
+	gpiod_set_value(data->sck, 1);
 	ndelay(SHT15_TSCKH);
-	gpio_set_value(data->pdata->gpio_sck, 0);
+	gpiod_set_value(data->sck, 0);
 	ndelay(SHT15_TSCKL);
 	return 0;
 }
@@ -405,10 +406,10 @@ static u8 sht15_read_byte(struct sht15_data *data)
 
 	for (i = 0; i < 8; ++i) {
 		byte <<= 1;
-		gpio_set_value(data->pdata->gpio_sck, 1);
+		gpiod_set_value(data->sck, 1);
 		ndelay(SHT15_TSCKH);
-		byte |= !!gpio_get_value(data->pdata->gpio_data);
-		gpio_set_value(data->pdata->gpio_sck, 0);
+		byte |= !!gpiod_get_value(data->data);
+		gpiod_set_value(data->sck, 0);
 		ndelay(SHT15_TSCKL);
 	}
 	return byte;
@@ -428,7 +429,7 @@ static int sht15_send_status(struct sht15_data *data, u8 status)
 	err = sht15_send_cmd(data, SHT15_WRITE_STATUS);
 	if (err)
 		return err;
-	err = gpio_direction_output(data->pdata->gpio_data, 1);
+	err = gpiod_direction_output(data->data, 1);
 	if (err)
 		return err;
 	ndelay(SHT15_TSU);
@@ -528,14 +529,14 @@ static int sht15_measurement(struct sht15_data *data,
 	if (ret)
 		return ret;
 
-	ret = gpio_direction_input(data->pdata->gpio_data);
+	ret = gpiod_direction_input(data->data);
 	if (ret)
 		return ret;
 	atomic_set(&data->interrupt_handled, 0);
 
-	enable_irq(gpio_to_irq(data->pdata->gpio_data));
-	if (gpio_get_value(data->pdata->gpio_data) == 0) {
-		disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+	enable_irq(gpiod_to_irq(data->data));
+	if (gpiod_get_value(data->data) == 0) {
+		disable_irq_nosync(gpiod_to_irq(data->data));
 		/* Only relevant if the interrupt hasn't occurred. */
 		if (!atomic_read(&data->interrupt_handled))
 			schedule_work(&data->read_work);
@@ -547,7 +548,7 @@ static int sht15_measurement(struct sht15_data *data,
 		data->state = SHT15_READING_NOTHING;
 		return -EIO;
 	} else if (ret == 0) { /* timeout occurred */
-		disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+		disable_irq_nosync(gpiod_to_irq(data->data));
 		ret = sht15_connection_reset(data);
 		if (ret)
 			return ret;
@@ -826,15 +827,15 @@ static void sht15_bh_read_data(struct work_struct *work_s)
 			       read_work);
 
 	/* Firstly, verify the line is low */
-	if (gpio_get_value(data->pdata->gpio_data)) {
+	if (gpiod_get_value(data->data)) {
 		/*
 		 * If not, then start the interrupt again - care here as could
 		 * have gone low in meantime so verify it hasn't!
 		 */
 		atomic_set(&data->interrupt_handled, 0);
-		enable_irq(gpio_to_irq(data->pdata->gpio_data));
+		enable_irq(gpiod_to_irq(data->data));
 		/* If still not occurred or another handler was scheduled */
-		if (gpio_get_value(data->pdata->gpio_data)
+		if (gpiod_get_value(data->data)
 		    || atomic_read(&data->interrupt_handled))
 			return;
 	}
@@ -918,53 +919,12 @@ static const struct of_device_id sht15_dt_match[] = {
 	{ },
 };
 MODULE_DEVICE_TABLE(of, sht15_dt_match);
-
-/*
- * This function returns NULL if pdev isn't a device instatiated by dt,
- * a pointer to pdata if it could successfully get all information
- * from dt or a negative ERR_PTR() on error.
- */
-static struct sht15_platform_data *sht15_probe_dt(struct device *dev)
-{
-	struct device_node *np = dev->of_node;
-	struct sht15_platform_data *pdata;
-
-	/* no device tree device */
-	if (!np)
-		return NULL;
-
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return ERR_PTR(-ENOMEM);
-
-	pdata->gpio_data = of_get_named_gpio(np, "data-gpios", 0);
-	if (pdata->gpio_data < 0) {
-		if (pdata->gpio_data != -EPROBE_DEFER)
-			dev_err(dev, "data-gpios not found\n");
-		return ERR_PTR(pdata->gpio_data);
-	}
-
-	pdata->gpio_sck = of_get_named_gpio(np, "clk-gpios", 0);
-	if (pdata->gpio_sck < 0) {
-		if (pdata->gpio_sck != -EPROBE_DEFER)
-			dev_err(dev, "clk-gpios not found\n");
-		return ERR_PTR(pdata->gpio_sck);
-	}
-
-	return pdata;
-}
-#else
-static inline struct sht15_platform_data *sht15_probe_dt(struct device *dev)
-{
-	return NULL;
-}
 #endif
 
 static int sht15_probe(struct platform_device *pdev)
 {
 	int ret;
 	struct sht15_data *data;
-	u8 status = 0;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
@@ -977,25 +937,6 @@ static int sht15_probe(struct platform_device *pdev)
 	data->dev = &pdev->dev;
 	init_waitqueue_head(&data->wait_queue);
 
-	data->pdata = sht15_probe_dt(&pdev->dev);
-	if (IS_ERR(data->pdata))
-		return PTR_ERR(data->pdata);
-	if (data->pdata == NULL) {
-		data->pdata = dev_get_platdata(&pdev->dev);
-		if (data->pdata == NULL) {
-			dev_err(&pdev->dev, "no platform data supplied\n");
-			return -EINVAL;
-		}
-	}
-
-	data->supply_uv = data->pdata->supply_mv * 1000;
-	if (data->pdata->checksum)
-		data->checksumming = true;
-	if (data->pdata->no_otp_reload)
-		status |= SHT15_STATUS_NO_OTP_RELOAD;
-	if (data->pdata->low_resolution)
-		status |= SHT15_STATUS_LOW_RESOLUTION;
-
 	/*
 	 * If a regulator is available,
 	 * query what the supply voltage actually is!
@@ -1030,21 +971,20 @@ static int sht15_probe(struct platform_device *pdev)
 	}
 
 	/* Try requesting the GPIOs */
-	ret = devm_gpio_request_one(&pdev->dev, data->pdata->gpio_sck,
-			GPIOF_OUT_INIT_LOW, "SHT15 sck");
-	if (ret) {
+	data->sck = devm_gpiod_get(&pdev->dev, "clk", GPIOD_OUT_LOW);
+	if (IS_ERR(data->sck)) {
+		ret = PTR_ERR(data->sck);
 		dev_err(&pdev->dev, "clock line GPIO request failed\n");
 		goto err_release_reg;
 	}
-
-	ret = devm_gpio_request(&pdev->dev, data->pdata->gpio_data,
-				"SHT15 data");
-	if (ret) {
+	data->data = devm_gpiod_get(&pdev->dev, "data", GPIOD_IN);
+	if (IS_ERR(data->data)) {
+		ret = PTR_ERR(data->data);
 		dev_err(&pdev->dev, "data line GPIO request failed\n");
 		goto err_release_reg;
 	}
 
-	ret = devm_request_irq(&pdev->dev, gpio_to_irq(data->pdata->gpio_data),
+	ret = devm_request_irq(&pdev->dev, gpiod_to_irq(data->data),
 			       sht15_interrupt_fired,
 			       IRQF_TRIGGER_FALLING,
 			       "sht15 data",
@@ -1053,7 +993,7 @@ static int sht15_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to get irq for data line\n");
 		goto err_release_reg;
 	}
-	disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data));
+	disable_irq_nosync(gpiod_to_irq(data->data));
 	ret = sht15_connection_reset(data);
 	if (ret)
 		goto err_release_reg;
@@ -1061,13 +1001,6 @@ static int sht15_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_release_reg;
 
-	/* write status with platform data options */
-	if (status) {
-		ret = sht15_send_status(data, status);
-		if (ret)
-			goto err_release_reg;
-	}
-
 	ret = sysfs_create_group(&pdev->dev.kobj, &sht15_attr_group);
 	if (ret) {
 		dev_err(&pdev->dev, "sysfs create failed\n");
diff --git a/drivers/hwmon/stts751.c b/drivers/hwmon/stts751.c
index 3f940fb67dc6..7fe152d92350 100644
--- a/drivers/hwmon/stts751.c
+++ b/drivers/hwmon/stts751.c
@@ -396,7 +396,7 @@ static ssize_t show_max_alarm(struct device *dev, struct device_attribute *attr,
 	if (ret < 0)
 		return ret;
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->max_alert);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->max_alert);
 }
 
 static ssize_t show_min_alarm(struct device *dev, struct device_attribute *attr,
@@ -413,7 +413,7 @@ static ssize_t show_min_alarm(struct device *dev, struct device_attribute *attr,
 	if (ret < 0)
 		return ret;
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->min_alert);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->min_alert);
 }
 
 static ssize_t show_input(struct device *dev, struct device_attribute *attr,
@@ -428,7 +428,7 @@ static ssize_t show_input(struct device *dev, struct device_attribute *attr,
 	if (ret < 0)
 		return ret;
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->temp);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->temp);
 }
 
 static ssize_t show_therm(struct device *dev, struct device_attribute *attr,
@@ -436,7 +436,7 @@ static ssize_t show_therm(struct device *dev, struct device_attribute *attr,
 {
 	struct stts751_priv *priv = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->therm);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->therm);
 }
 
 static ssize_t set_therm(struct device *dev, struct device_attribute *attr,
@@ -478,7 +478,7 @@ static ssize_t show_hyst(struct device *dev, struct device_attribute *attr,
 {
 	struct stts751_priv *priv = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->hyst);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->hyst);
 }
 
 static ssize_t set_hyst(struct device *dev, struct device_attribute *attr,
@@ -518,7 +518,7 @@ static ssize_t show_therm_trip(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->therm_trip);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->therm_trip);
 }
 
 static ssize_t show_max(struct device *dev, struct device_attribute *attr,
@@ -526,7 +526,7 @@ static ssize_t show_max(struct device *dev, struct device_attribute *attr,
 {
 	struct stts751_priv *priv = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->event_max);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->event_max);
 }
 
 static ssize_t set_max(struct device *dev, struct device_attribute *attr,
@@ -560,7 +560,7 @@ static ssize_t show_min(struct device *dev, struct device_attribute *attr,
 {
 	struct stts751_priv *priv = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n", priv->event_min);
+	return snprintf(buf, PAGE_SIZE, "%d\n", priv->event_min);
 }
 
 static ssize_t set_min(struct device *dev, struct device_attribute *attr,
@@ -594,7 +594,7 @@ static ssize_t show_interval(struct device *dev, struct device_attribute *attr,
 {
 	struct stts751_priv *priv = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE - 1, "%d\n",
+	return snprintf(buf, PAGE_SIZE, "%d\n",
 			stts751_intervals[priv->interval]);
 }
 
diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
index 5eafbaada795..dfc40c740d07 100644
--- a/drivers/hwmon/tmp102.c
+++ b/drivers/hwmon/tmp102.c
@@ -268,14 +268,11 @@ static int tmp102_probe(struct i2c_client *client,
 		return err;
 	}
 
-	tmp102->ready_time = jiffies;
-	if (tmp102->config_orig & TMP102_CONF_SD) {
-		/*
-		 * Mark that we are not ready with data until the first
-		 * conversion is complete
-		 */
-		tmp102->ready_time += msecs_to_jiffies(CONVERSION_TIME_MS);
-	}
+	/*
+	 * Mark that we are not ready with data until the first
+	 * conversion is complete
+	 */
+	tmp102->ready_time = jiffies + msecs_to_jiffies(CONVERSION_TIME_MS);
 
 	hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
 							 tmp102,
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index dab5c515d5a3..5ba9d9f1daa1 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -1676,7 +1676,9 @@ static int w83793_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct device *dev = &client->dev;
-	const int watchdog_minors[] = { WATCHDOG_MINOR, 212, 213, 214, 215 };
+	static const int watchdog_minors[] = {
+		WATCHDOG_MINOR, 212, 213, 214, 215
+	};
 	struct w83793_data *data;
 	int i, tmp, val, err;
 	int files_fan = ARRAY_SIZE(w83793_left_fan) / 7;
diff --git a/drivers/hwmon/xgene-hwmon.c b/drivers/hwmon/xgene-hwmon.c
index 9c0dbb8191ad..a3cd91f23267 100644
--- a/drivers/hwmon/xgene-hwmon.c
+++ b/drivers/hwmon/xgene-hwmon.c
@@ -91,6 +91,11 @@
 #define to_xgene_hwmon_dev(cl)		\
 	container_of(cl, struct xgene_hwmon_dev, mbox_client)
 
+enum xgene_hwmon_version {
+	XGENE_HWMON_V1 = 0,
+	XGENE_HWMON_V2 = 1,
+};
+
 struct slimpro_resp_msg {
 	u32 msg;
 	u32 param1;
@@ -609,6 +614,15 @@ static void xgene_hwmon_tx_done(struct mbox_client *cl, void *msg, int ret)
 	}
 }
 
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id xgene_hwmon_acpi_match[] = {
+	{"APMC0D29", XGENE_HWMON_V1},
+	{"APMC0D8A", XGENE_HWMON_V2},
+	{},
+};
+MODULE_DEVICE_TABLE(acpi, xgene_hwmon_acpi_match);
+#endif
+
 static int xgene_hwmon_probe(struct platform_device *pdev)
 {
 	struct xgene_hwmon_dev *ctx;
@@ -630,7 +644,7 @@ static int xgene_hwmon_probe(struct platform_device *pdev)
 			 sizeof(struct slimpro_resp_msg) * ASYNC_MSG_FIFO_SIZE,
 			 GFP_KERNEL);
 	if (rc)
-		goto out_mbox_free;
+		return -ENOMEM;
 
 	INIT_WORK(&ctx->workq, xgene_hwmon_evt_work);
 
@@ -646,15 +660,26 @@ static int xgene_hwmon_probe(struct platform_device *pdev)
 		if (IS_ERR(ctx->mbox_chan)) {
 			dev_err(&pdev->dev,
 				"SLIMpro mailbox channel request failed\n");
-			return -ENODEV;
+			rc = -ENODEV;
+			goto out_mbox_free;
 		}
 	} else {
 		struct acpi_pcct_hw_reduced *cppc_ss;
+		const struct acpi_device_id *acpi_id;
+		int version;
+
+		acpi_id = acpi_match_device(pdev->dev.driver->acpi_match_table,
+					    &pdev->dev);
+		if (!acpi_id)
+			return -EINVAL;
+
+		version = (int)acpi_id->driver_data;
 
 		if (device_property_read_u32(&pdev->dev, "pcc-channel",
 					     &ctx->mbox_idx)) {
 			dev_err(&pdev->dev, "no pcc-channel property\n");
-			return -ENODEV;
+			rc = -ENODEV;
+			goto out_mbox_free;
 		}
 
 		cl->rx_callback = xgene_hwmon_pcc_rx_cb;
@@ -662,7 +687,8 @@ static int xgene_hwmon_probe(struct platform_device *pdev)
 		if (IS_ERR(ctx->mbox_chan)) {
 			dev_err(&pdev->dev,
 				"PPC channel request failed\n");
-			return -ENODEV;
+			rc = -ENODEV;
+			goto out_mbox_free;
 		}
 
 		/*
@@ -675,13 +701,13 @@ static int xgene_hwmon_probe(struct platform_device *pdev)
 		if (!cppc_ss) {
 			dev_err(&pdev->dev, "PPC subspace not found\n");
 			rc = -ENODEV;
-			goto out_mbox_free;
+			goto out;
 		}
 
 		if (!ctx->mbox_chan->mbox->txdone_irq) {
 			dev_err(&pdev->dev, "PCC IRQ not supported\n");
 			rc = -ENODEV;
-			goto out_mbox_free;
+			goto out;
 		}
 
 		/*
@@ -690,20 +716,26 @@ static int xgene_hwmon_probe(struct platform_device *pdev)
 		 */
 		ctx->comm_base_addr = cppc_ss->base_address;
 		if (ctx->comm_base_addr) {
-			ctx->pcc_comm_addr = memremap(ctx->comm_base_addr,
+			if (version == XGENE_HWMON_V2)
+				ctx->pcc_comm_addr = (void __force *)ioremap(
+							ctx->comm_base_addr,
+							cppc_ss->length);
+			else
+				ctx->pcc_comm_addr = memremap(
+							ctx->comm_base_addr,
 							cppc_ss->length,
 							MEMREMAP_WB);
 		} else {
 			dev_err(&pdev->dev, "Failed to get PCC comm region\n");
 			rc = -ENODEV;
-			goto out_mbox_free;
+			goto out;
 		}
 
 		if (!ctx->pcc_comm_addr) {
 			dev_err(&pdev->dev,
 				"Failed to ioremap PCC comm region\n");
 			rc = -ENOMEM;
-			goto out_mbox_free;
+			goto out;
 		}
 
 		/*
@@ -758,14 +790,6 @@ static int xgene_hwmon_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_ACPI
-static const struct acpi_device_id xgene_hwmon_acpi_match[] = {
-	{"APMC0D29", 0},
-	{},
-};
-MODULE_DEVICE_TABLE(acpi, xgene_hwmon_acpi_match);
-#endif
-
 static const struct of_device_id xgene_hwmon_of_match[] = {
 	{.compatible = "apm,xgene-slimpro-hwmon"},
 	{}
diff --git a/drivers/hwspinlock/Makefile b/drivers/hwspinlock/Makefile
index 14928aa7cc5a..b87c01a506a4 100644
--- a/drivers/hwspinlock/Makefile
+++ b/drivers/hwspinlock/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Generic Hardware Spinlock framework
 #
diff --git a/drivers/hwtracing/coresight/Makefile b/drivers/hwtracing/coresight/Makefile
index 5bae90ce794d..61db9dd0d571 100644
--- a/drivers/hwtracing/coresight/Makefile
+++ b/drivers/hwtracing/coresight/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for CoreSight drivers.
 #
diff --git a/drivers/hwtracing/intel_th/Makefile b/drivers/hwtracing/intel_th/Makefile
index 81d42fe918f7..880c9b5e8566 100644
--- a/drivers/hwtracing/intel_th/Makefile
+++ b/drivers/hwtracing/intel_th/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INTEL_TH)		+= intel_th.o
 intel_th-y			:= core.o
 intel_th-$(CONFIG_INTEL_TH_DEBUG) += debug.o
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index bc9cebc30526..c2a2ce8ee541 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -144,6 +144,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
 		.driver_data = (kernel_ulong_t)0,
 	},
 	{
+		/* Lewisburg PCH */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa1a6),
+		.driver_data = (kernel_ulong_t)0,
+	},
+	{
 		/* Gemini Lake */
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x318e),
 		.driver_data = (kernel_ulong_t)&intel_th_2x,
@@ -158,6 +163,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9da6),
 		.driver_data = (kernel_ulong_t)&intel_th_2x,
 	},
+	{
+		/* Cedar Fork PCH */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x18e1),
+		.driver_data = (kernel_ulong_t)&intel_th_2x,
+	},
 	{ 0 },
 };
 
diff --git a/drivers/hwtracing/stm/Makefile b/drivers/hwtracing/stm/Makefile
index 3abd84ce13d4..effc19e5190f 100644
--- a/drivers/hwtracing/stm/Makefile
+++ b/drivers/hwtracing/stm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_STM)	+= stm_core.o
 
 stm_core-y		:= core.o policy.o
diff --git a/drivers/hwtracing/stm/core.c b/drivers/hwtracing/stm/core.c
index 9414900575d8..f129869e05a9 100644
--- a/drivers/hwtracing/stm/core.c
+++ b/drivers/hwtracing/stm/core.c
@@ -1119,7 +1119,7 @@ void stm_source_unregister_device(struct stm_source_data *data)
 
 	stm_source_link_drop(src);
 
-	device_destroy(&stm_source_class, src->dev.devt);
+	device_unregister(&src->dev);
 }
 EXPORT_SYMBOL_GPL(stm_source_unregister_device);
 
diff --git a/drivers/hwtracing/stm/policy.c b/drivers/hwtracing/stm/policy.c
index 6c0ae2996326..33e9a1b6ea7c 100644
--- a/drivers/hwtracing/stm/policy.c
+++ b/drivers/hwtracing/stm/policy.c
@@ -187,8 +187,8 @@ static struct configfs_attribute *stp_policy_node_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type stp_policy_type;
-static struct config_item_type stp_policy_node_type;
+static const struct config_item_type stp_policy_type;
+static const struct config_item_type stp_policy_node_type;
 
 static struct config_group *
 stp_policy_node_make(struct config_group *group, const char *name)
@@ -236,7 +236,7 @@ static struct configfs_group_operations stp_policy_node_group_ops = {
 	.drop_item	= stp_policy_node_drop,
 };
 
-static struct config_item_type stp_policy_node_type = {
+static const struct config_item_type stp_policy_node_type = {
 	.ct_item_ops	= &stp_policy_node_item_ops,
 	.ct_group_ops	= &stp_policy_node_group_ops,
 	.ct_attrs	= stp_policy_node_attrs,
@@ -311,7 +311,7 @@ static struct configfs_group_operations stp_policy_group_ops = {
 	.make_group	= stp_policy_node_make,
 };
 
-static struct config_item_type stp_policy_type = {
+static const struct config_item_type stp_policy_type = {
 	.ct_item_ops	= &stp_policy_item_ops,
 	.ct_group_ops	= &stp_policy_group_ops,
 	.ct_attrs	= stp_policy_attrs,
@@ -380,7 +380,7 @@ static struct configfs_group_operations stp_policies_group_ops = {
 	.make_group	= stp_policies_make,
 };
 
-static struct config_item_type stp_policies_type = {
+static const struct config_item_type stp_policies_type = {
 	.ct_group_ops	= &stp_policies_group_ops,
 	.ct_owner	= THIS_MODULE,
 };
diff --git a/drivers/i2c/Makefile b/drivers/i2c/Makefile
index 7bb65a4369e1..72c94c60fdd1 100644
--- a/drivers/i2c/Makefile
+++ b/drivers/i2c/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the i2c core.
 #
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index edc0cfb6fc1a..45a3f3ca29b3 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -131,6 +131,7 @@ config I2C_I801
 	    Gemini Lake (SOC)
 	    Cannon Lake-H (PCH)
 	    Cannon Lake-LP (PCH)
+	    Cedar Fork (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
@@ -336,6 +337,16 @@ config I2C_POWERMAC
 
 comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
+config I2C_ALTERA
+	tristate "Altera Soft IP I2C"
+	depends on (ARCH_SOCFPGA || NIOS2) && OF
+	help
+	  If you say yes to this option, support will be included for the
+	  Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-altera.
+
 config I2C_ASPEED
 	tristate "Aspeed I2C Controller"
 	depends on ARCH_ASPEED || COMPILE_TEST
@@ -935,6 +946,16 @@ config I2C_STM32F4
 	  This driver can also be built as module. If so, the module
 	  will be called i2c-stm32f4.
 
+config I2C_STM32F7
+	tristate "STMicroelectronics STM32F7 I2C support"
+	depends on ARCH_STM32 || COMPILE_TEST
+	help
+	  Enable this option to add support for STM32 I2C controller embedded
+	  in STM32F7 SoCs.
+
+	  This driver can also be built as module. If so, the module
+	  will be called i2c-stm32f7.
+
 config I2C_STU300
 	tristate "ST Microelectronics DDC I2C interface"
 	depends on MACH_U300
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 562daf738048..2ce8576540a2 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the i2c bus drivers.
 #
@@ -30,6 +31,7 @@ obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
 obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
 
 # Embedded system I2C/SMBus host controller drivers
+obj-$(CONFIG_I2C_ALTERA)	+= i2c-altera.o
 obj-$(CONFIG_I2C_ASPEED)	+= i2c-aspeed.o
 obj-$(CONFIG_I2C_AT91)		+= i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
@@ -93,6 +95,7 @@ obj-$(CONFIG_I2C_SIRF)		+= i2c-sirf.o
 obj-$(CONFIG_I2C_SPRD)		+= i2c-sprd.o
 obj-$(CONFIG_I2C_ST)		+= i2c-st.o
 obj-$(CONFIG_I2C_STM32F4)	+= i2c-stm32f4.o
+obj-$(CONFIG_I2C_STM32F7)	+= i2c-stm32f7.o
 obj-$(CONFIG_I2C_STU300)	+= i2c-stu300.o
 obj-$(CONFIG_I2C_SUN6I_P2WI)	+= i2c-sun6i-p2wi.o
 obj-$(CONFIG_I2C_TEGRA)		+= i2c-tegra.o
diff --git a/drivers/i2c/busses/i2c-altera.c b/drivers/i2c/busses/i2c-altera.c
new file mode 100644
index 000000000000..f5e1941e65b5
--- /dev/null
+++ b/drivers/i2c/busses/i2c-altera.c
@@ -0,0 +1,511 @@
+/*
+ *  Copyright Intel Corporation (C) 2017.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * Based on the i2c-axxia.c driver.
+ */
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/iopoll.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+
+#define ALTR_I2C_TFR_CMD	0x00	/* Transfer Command register */
+#define     ALTR_I2C_TFR_CMD_STA	BIT(9)	/* send START before byte */
+#define     ALTR_I2C_TFR_CMD_STO	BIT(8)	/* send STOP after byte */
+#define     ALTR_I2C_TFR_CMD_RW_D	BIT(0)	/* Direction of transfer */
+#define ALTR_I2C_RX_DATA	0x04	/* RX data FIFO register */
+#define ALTR_I2C_CTRL		0x08	/* Control register */
+#define     ALTR_I2C_CTRL_RXT_SHFT	4	/* RX FIFO Threshold */
+#define     ALTR_I2C_CTRL_TCT_SHFT	2	/* TFER CMD FIFO Threshold */
+#define     ALTR_I2C_CTRL_BSPEED	BIT(1)	/* Bus Speed (1=Fast) */
+#define     ALTR_I2C_CTRL_EN	BIT(0)	/* Enable Core (1=Enable) */
+#define ALTR_I2C_ISER		0x0C	/* Interrupt Status Enable register */
+#define     ALTR_I2C_ISER_RXOF_EN	BIT(4)	/* Enable RX OVERFLOW IRQ */
+#define     ALTR_I2C_ISER_ARB_EN	BIT(3)	/* Enable ARB LOST IRQ */
+#define     ALTR_I2C_ISER_NACK_EN	BIT(2)	/* Enable NACK DET IRQ */
+#define     ALTR_I2C_ISER_RXRDY_EN	BIT(1)	/* Enable RX Ready IRQ */
+#define     ALTR_I2C_ISER_TXRDY_EN	BIT(0)	/* Enable TX Ready IRQ */
+#define ALTR_I2C_ISR		0x10	/* Interrupt Status register */
+#define     ALTR_I2C_ISR_RXOF		BIT(4)	/* RX OVERFLOW IRQ */
+#define     ALTR_I2C_ISR_ARB		BIT(3)	/* ARB LOST IRQ */
+#define     ALTR_I2C_ISR_NACK		BIT(2)	/* NACK DET IRQ */
+#define     ALTR_I2C_ISR_RXRDY		BIT(1)	/* RX Ready IRQ */
+#define     ALTR_I2C_ISR_TXRDY		BIT(0)	/* TX Ready IRQ */
+#define ALTR_I2C_STATUS		0x14	/* Status register */
+#define     ALTR_I2C_STAT_CORE		BIT(0)	/* Core Status (0=idle) */
+#define ALTR_I2C_TC_FIFO_LVL	0x18	/* Transfer FIFO LVL register */
+#define ALTR_I2C_RX_FIFO_LVL	0x1C	/* Receive FIFO LVL register */
+#define ALTR_I2C_SCL_LOW	0x20	/* SCL low count register */
+#define ALTR_I2C_SCL_HIGH	0x24	/* SCL high count register */
+#define ALTR_I2C_SDA_HOLD	0x28	/* SDA hold count register */
+
+#define ALTR_I2C_ALL_IRQ	(ALTR_I2C_ISR_RXOF | ALTR_I2C_ISR_ARB | \
+				 ALTR_I2C_ISR_NACK | ALTR_I2C_ISR_RXRDY | \
+				 ALTR_I2C_ISR_TXRDY)
+
+#define ALTR_I2C_THRESHOLD	0	/* IRQ Threshold at 1 element */
+#define ALTR_I2C_DFLT_FIFO_SZ	4
+#define ALTR_I2C_TIMEOUT	100000	/* 100ms */
+#define ALTR_I2C_XFER_TIMEOUT	(msecs_to_jiffies(250))
+
+/**
+ * altr_i2c_dev - I2C device context
+ * @base: pointer to register struct
+ * @msg: pointer to current message
+ * @msg_len: number of bytes transferred in msg
+ * @msg_err: error code for completed message
+ * @msg_complete: xfer completion object
+ * @dev: device reference
+ * @adapter: core i2c abstraction
+ * @i2c_clk: clock reference for i2c input clock
+ * @bus_clk_rate: current i2c bus clock rate
+ * @buf: ptr to msg buffer for easier use.
+ * @fifo_size: size of the FIFO passed in.
+ * @isr_mask: cached copy of local ISR enables.
+ * @isr_status: cached copy of local ISR status.
+ * @lock: spinlock for IRQ synchronization.
+ */
+struct altr_i2c_dev {
+	void __iomem *base;
+	struct i2c_msg *msg;
+	size_t msg_len;
+	int msg_err;
+	struct completion msg_complete;
+	struct device *dev;
+	struct i2c_adapter adapter;
+	struct clk *i2c_clk;
+	u32 bus_clk_rate;
+	u8 *buf;
+	u32 fifo_size;
+	u32 isr_mask;
+	u32 isr_status;
+	spinlock_t lock;	/* IRQ synchronization */
+};
+
+static void
+altr_i2c_int_enable(struct altr_i2c_dev *idev, u32 mask, bool enable)
+{
+	unsigned long flags;
+	u32 int_en;
+
+	spin_lock_irqsave(&idev->lock, flags);
+
+	int_en = readl(idev->base + ALTR_I2C_ISER);
+	if (enable)
+		idev->isr_mask = int_en | mask;
+	else
+		idev->isr_mask = int_en & ~mask;
+
+	writel(idev->isr_mask, idev->base + ALTR_I2C_ISER);
+
+	spin_unlock_irqrestore(&idev->lock, flags);
+}
+
+static void altr_i2c_int_clear(struct altr_i2c_dev *idev, u32 mask)
+{
+	u32 int_en = readl(idev->base + ALTR_I2C_ISR);
+
+	writel(int_en | mask, idev->base + ALTR_I2C_ISR);
+}
+
+static void altr_i2c_core_disable(struct altr_i2c_dev *idev)
+{
+	u32 tmp = readl(idev->base + ALTR_I2C_CTRL);
+
+	writel(tmp & ~ALTR_I2C_CTRL_EN, idev->base + ALTR_I2C_CTRL);
+}
+
+static void altr_i2c_core_enable(struct altr_i2c_dev *idev)
+{
+	u32 tmp = readl(idev->base + ALTR_I2C_CTRL);
+
+	writel(tmp | ALTR_I2C_CTRL_EN, idev->base + ALTR_I2C_CTRL);
+}
+
+static void altr_i2c_reset(struct altr_i2c_dev *idev)
+{
+	altr_i2c_core_disable(idev);
+	altr_i2c_core_enable(idev);
+}
+
+static inline void altr_i2c_stop(struct altr_i2c_dev *idev)
+{
+	writel(ALTR_I2C_TFR_CMD_STO, idev->base + ALTR_I2C_TFR_CMD);
+}
+
+static void altr_i2c_init(struct altr_i2c_dev *idev)
+{
+	u32 divisor = clk_get_rate(idev->i2c_clk) / idev->bus_clk_rate;
+	u32 clk_mhz = clk_get_rate(idev->i2c_clk) / 1000000;
+	u32 tmp = (ALTR_I2C_THRESHOLD << ALTR_I2C_CTRL_RXT_SHFT) |
+		  (ALTR_I2C_THRESHOLD << ALTR_I2C_CTRL_TCT_SHFT);
+	u32 t_high, t_low;
+
+	if (idev->bus_clk_rate <= 100000) {
+		tmp &= ~ALTR_I2C_CTRL_BSPEED;
+		/* Standard mode SCL 50/50 */
+		t_high = divisor * 1 / 2;
+		t_low = divisor * 1 / 2;
+	} else {
+		tmp |= ALTR_I2C_CTRL_BSPEED;
+		/* Fast mode SCL 33/66 */
+		t_high = divisor * 1 / 3;
+		t_low = divisor * 2 / 3;
+	}
+	writel(tmp, idev->base + ALTR_I2C_CTRL);
+
+	dev_dbg(idev->dev, "rate=%uHz per_clk=%uMHz -> ratio=1:%u\n",
+		idev->bus_clk_rate, clk_mhz, divisor);
+
+	/* Reset controller */
+	altr_i2c_reset(idev);
+
+	/* SCL High Time */
+	writel(t_high, idev->base + ALTR_I2C_SCL_HIGH);
+	/* SCL Low Time */
+	writel(t_low, idev->base + ALTR_I2C_SCL_LOW);
+	/* SDA Hold Time, 300ns */
+	writel(div_u64(300 * clk_mhz, 1000), idev->base + ALTR_I2C_SDA_HOLD);
+
+	/* Mask all master interrupt bits */
+	altr_i2c_int_enable(idev, ALTR_I2C_ALL_IRQ, false);
+}
+
+/**
+ * altr_i2c_transfer - On the last byte to be transmitted, send
+ * a Stop bit on the last byte.
+ */
+static void altr_i2c_transfer(struct altr_i2c_dev *idev, u32 data)
+{
+	/* On the last byte to be transmitted, send STOP */
+	if (idev->msg_len == 1)
+		data |= ALTR_I2C_TFR_CMD_STO;
+	if (idev->msg_len > 0)
+		writel(data, idev->base + ALTR_I2C_TFR_CMD);
+}
+
+/**
+ * altr_i2c_empty_rx_fifo - Fetch data from RX FIFO until end of
+ * transfer. Send a Stop bit on the last byte.
+ */
+static void altr_i2c_empty_rx_fifo(struct altr_i2c_dev *idev)
+{
+	size_t rx_fifo_avail = readl(idev->base + ALTR_I2C_RX_FIFO_LVL);
+	int bytes_to_transfer = min(rx_fifo_avail, idev->msg_len);
+
+	while (bytes_to_transfer-- > 0) {
+		*idev->buf++ = readl(idev->base + ALTR_I2C_RX_DATA);
+		idev->msg_len--;
+		altr_i2c_transfer(idev, 0);
+	}
+}
+
+/**
+ * altr_i2c_fill_tx_fifo - Fill TX FIFO from current message buffer.
+ * @return: Number of bytes left to transfer.
+ */
+static int altr_i2c_fill_tx_fifo(struct altr_i2c_dev *idev)
+{
+	size_t tx_fifo_avail = idev->fifo_size - readl(idev->base +
+						       ALTR_I2C_TC_FIFO_LVL);
+	int bytes_to_transfer = min(tx_fifo_avail, idev->msg_len);
+	int ret = idev->msg_len - bytes_to_transfer;
+
+	while (bytes_to_transfer-- > 0) {
+		altr_i2c_transfer(idev, *idev->buf++);
+		idev->msg_len--;
+	}
+
+	return ret;
+}
+
+static irqreturn_t altr_i2c_isr_quick(int irq, void *_dev)
+{
+	struct altr_i2c_dev *idev = _dev;
+	irqreturn_t ret = IRQ_HANDLED;
+
+	/* Read IRQ status but only interested in Enabled IRQs. */
+	idev->isr_status = readl(idev->base + ALTR_I2C_ISR) & idev->isr_mask;
+	if (idev->isr_status)
+		ret = IRQ_WAKE_THREAD;
+
+	return ret;
+}
+
+static irqreturn_t altr_i2c_isr(int irq, void *_dev)
+{
+	int ret;
+	bool read, finish = false;
+	struct altr_i2c_dev *idev = _dev;
+	u32 status = idev->isr_status;
+
+	if (!idev->msg) {
+		dev_warn(idev->dev, "unexpected interrupt\n");
+		altr_i2c_int_clear(idev, ALTR_I2C_ALL_IRQ);
+		return IRQ_HANDLED;
+	}
+	read = (idev->msg->flags & I2C_M_RD) != 0;
+
+	/* handle Lost Arbitration */
+	if (unlikely(status & ALTR_I2C_ISR_ARB)) {
+		altr_i2c_int_clear(idev, ALTR_I2C_ISR_ARB);
+		idev->msg_err = -EAGAIN;
+		finish = true;
+	} else if (unlikely(status & ALTR_I2C_ISR_NACK)) {
+		dev_dbg(idev->dev, "Could not get ACK\n");
+		idev->msg_err = -ENXIO;
+		altr_i2c_int_clear(idev, ALTR_I2C_ISR_NACK);
+		altr_i2c_stop(idev);
+		finish = true;
+	} else if (read && unlikely(status & ALTR_I2C_ISR_RXOF)) {
+		/* handle RX FIFO Overflow */
+		altr_i2c_empty_rx_fifo(idev);
+		altr_i2c_int_clear(idev, ALTR_I2C_ISR_RXRDY);
+		altr_i2c_stop(idev);
+		dev_err(idev->dev, "RX FIFO Overflow\n");
+		finish = true;
+	} else if (read && (status & ALTR_I2C_ISR_RXRDY)) {
+		/* RX FIFO needs service? */
+		altr_i2c_empty_rx_fifo(idev);
+		altr_i2c_int_clear(idev, ALTR_I2C_ISR_RXRDY);
+		if (!idev->msg_len)
+			finish = true;
+	} else if (!read && (status & ALTR_I2C_ISR_TXRDY)) {
+		/* TX FIFO needs service? */
+		altr_i2c_int_clear(idev, ALTR_I2C_ISR_TXRDY);
+		if (idev->msg_len > 0)
+			altr_i2c_fill_tx_fifo(idev);
+		else
+			finish = true;
+	} else {
+		dev_warn(idev->dev, "Unexpected interrupt: 0x%x\n", status);
+		altr_i2c_int_clear(idev, ALTR_I2C_ALL_IRQ);
+	}
+
+	if (finish) {
+		/* Wait for the Core to finish */
+		ret = readl_poll_timeout_atomic(idev->base + ALTR_I2C_STATUS,
+						status,
+						!(status & ALTR_I2C_STAT_CORE),
+						1, ALTR_I2C_TIMEOUT);
+		if (ret)
+			dev_err(idev->dev, "message timeout\n");
+		altr_i2c_int_enable(idev, ALTR_I2C_ALL_IRQ, false);
+		altr_i2c_int_clear(idev, ALTR_I2C_ALL_IRQ);
+		complete(&idev->msg_complete);
+		dev_dbg(idev->dev, "Message Complete\n");
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int altr_i2c_xfer_msg(struct altr_i2c_dev *idev, struct i2c_msg *msg)
+{
+	u32 imask = ALTR_I2C_ISR_RXOF | ALTR_I2C_ISR_ARB | ALTR_I2C_ISR_NACK;
+	unsigned long time_left;
+	u32 value;
+	u8 addr = i2c_8bit_addr_from_msg(msg);
+
+	idev->msg = msg;
+	idev->msg_len = msg->len;
+	idev->buf = msg->buf;
+	idev->msg_err = 0;
+	reinit_completion(&idev->msg_complete);
+	altr_i2c_core_enable(idev);
+
+	/* Make sure RX FIFO is empty */
+	do {
+		readl(idev->base + ALTR_I2C_RX_DATA);
+	} while (readl(idev->base + ALTR_I2C_RX_FIFO_LVL));
+
+	writel(ALTR_I2C_TFR_CMD_STA | addr, idev->base + ALTR_I2C_TFR_CMD);
+
+	if ((msg->flags & I2C_M_RD) != 0) {
+		imask |= ALTR_I2C_ISER_RXOF_EN | ALTR_I2C_ISER_RXRDY_EN;
+		altr_i2c_int_enable(idev, imask, true);
+		/* write the first byte to start the RX */
+		altr_i2c_transfer(idev, 0);
+	} else {
+		imask |= ALTR_I2C_ISR_TXRDY;
+		altr_i2c_int_enable(idev, imask, true);
+		altr_i2c_fill_tx_fifo(idev);
+	}
+
+	time_left = wait_for_completion_timeout(&idev->msg_complete,
+						ALTR_I2C_XFER_TIMEOUT);
+	altr_i2c_int_enable(idev, imask, false);
+
+	value = readl(idev->base + ALTR_I2C_STATUS) & ALTR_I2C_STAT_CORE;
+	if (value)
+		dev_err(idev->dev, "Core Status not IDLE...\n");
+
+	if (time_left == 0) {
+		idev->msg_err = -ETIMEDOUT;
+		dev_dbg(idev->dev, "Transaction timed out.\n");
+	}
+
+	altr_i2c_core_disable(idev);
+
+	return idev->msg_err;
+}
+
+static int
+altr_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
+{
+	struct altr_i2c_dev *idev = i2c_get_adapdata(adap);
+	int i, ret;
+
+	for (i = 0; i < num; i++) {
+		ret = altr_i2c_xfer_msg(idev, msgs++);
+		if (ret)
+			return ret;
+	}
+	return num;
+}
+
+static u32 altr_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm altr_i2c_algo = {
+	.master_xfer = altr_i2c_xfer,
+	.functionality = altr_i2c_func,
+};
+
+static int altr_i2c_probe(struct platform_device *pdev)
+{
+	struct altr_i2c_dev *idev = NULL;
+	struct resource *res;
+	int irq, ret;
+	u32 val;
+
+	idev = devm_kzalloc(&pdev->dev, sizeof(*idev), GFP_KERNEL);
+	if (!idev)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	idev->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(idev->base))
+		return PTR_ERR(idev->base);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "missing interrupt resource\n");
+		return irq;
+	}
+
+	idev->i2c_clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(idev->i2c_clk)) {
+		dev_err(&pdev->dev, "missing clock\n");
+		return PTR_ERR(idev->i2c_clk);
+	}
+
+	idev->dev = &pdev->dev;
+	init_completion(&idev->msg_complete);
+	spin_lock_init(&idev->lock);
+
+	val = device_property_read_u32(idev->dev, "fifo-size",
+				       &idev->fifo_size);
+	if (val) {
+		dev_err(&pdev->dev, "FIFO size set to default of %d\n",
+			ALTR_I2C_DFLT_FIFO_SZ);
+		idev->fifo_size = ALTR_I2C_DFLT_FIFO_SZ;
+	}
+
+	val = device_property_read_u32(idev->dev, "clock-frequency",
+				       &idev->bus_clk_rate);
+	if (val) {
+		dev_err(&pdev->dev, "Default to 100kHz\n");
+		idev->bus_clk_rate = 100000;	/* default clock rate */
+	}
+
+	if (idev->bus_clk_rate > 400000) {
+		dev_err(&pdev->dev, "invalid clock-frequency %d\n",
+			idev->bus_clk_rate);
+		return -EINVAL;
+	}
+
+	ret = devm_request_threaded_irq(&pdev->dev, irq, altr_i2c_isr_quick,
+					altr_i2c_isr, IRQF_ONESHOT,
+					pdev->name, idev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim IRQ %d\n", irq);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(idev->i2c_clk);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to enable clock\n");
+		return ret;
+	}
+
+	altr_i2c_init(idev);
+
+	i2c_set_adapdata(&idev->adapter, idev);
+	strlcpy(idev->adapter.name, pdev->name, sizeof(idev->adapter.name));
+	idev->adapter.owner = THIS_MODULE;
+	idev->adapter.algo = &altr_i2c_algo;
+	idev->adapter.dev.parent = &pdev->dev;
+	idev->adapter.dev.of_node = pdev->dev.of_node;
+
+	platform_set_drvdata(pdev, idev);
+
+	ret = i2c_add_adapter(&idev->adapter);
+	if (ret) {
+		clk_disable_unprepare(idev->i2c_clk);
+		return ret;
+	}
+	dev_info(&pdev->dev, "Altera SoftIP I2C Probe Complete\n");
+
+	return 0;
+}
+
+static int altr_i2c_remove(struct platform_device *pdev)
+{
+	struct altr_i2c_dev *idev = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(idev->i2c_clk);
+	i2c_del_adapter(&idev->adapter);
+
+	return 0;
+}
+
+/* Match table for of_platform binding */
+static const struct of_device_id altr_i2c_of_match[] = {
+	{ .compatible = "altr,softip-i2c-v1.0" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, altr_i2c_of_match);
+
+static struct platform_driver altr_i2c_driver = {
+	.probe = altr_i2c_probe,
+	.remove = altr_i2c_remove,
+	.driver = {
+		.name = "altera-i2c",
+		.of_match_table = altr_i2c_of_match,
+	},
+};
+
+module_platform_driver(altr_i2c_driver);
+
+MODULE_DESCRIPTION("Altera Soft IP I2C bus driver");
+MODULE_AUTHOR("Thor Thayer <thor.thayer@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index e114e4e00d29..9e12a53ef7b8 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -68,6 +68,7 @@
  * Gemini Lake (SOC)		0x31d4	32	hard	yes	yes	yes
  * Cannon Lake-H (PCH)		0xa323	32	hard	yes	yes	yes
  * Cannon Lake-LP (PCH)		0x9da3	32	hard	yes	yes	yes
+ * Cedar Fork (PCH)		0x18df	32	hard	yes	yes	yes
  *
  * Features supported by this driver:
  * Software PEC				no
@@ -204,6 +205,7 @@
 
 /* Older devices have their ID defined in <linux/pci_ids.h> */
 #define PCI_DEVICE_ID_INTEL_BAYTRAIL_SMBUS		0x0f12
+#define PCI_DEVICE_ID_INTEL_CDF_SMBUS			0x18df
 #define PCI_DEVICE_ID_INTEL_DNV_SMBUS			0x19df
 #define PCI_DEVICE_ID_INTEL_COUGARPOINT_SMBUS		0x1c22
 #define PCI_DEVICE_ID_INTEL_PATSBURG_SMBUS		0x1d22
@@ -1025,6 +1027,7 @@ static const struct pci_device_id i801_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BRASWELL_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CDF_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_DNV_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BROXTON_SMBUS) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS) },
@@ -1513,6 +1516,7 @@ static int i801_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	case PCI_DEVICE_ID_INTEL_CANNONLAKE_LP_SMBUS:
 	case PCI_DEVICE_ID_INTEL_LEWISBURG_SMBUS:
 	case PCI_DEVICE_ID_INTEL_LEWISBURG_SSKU_SMBUS:
+	case PCI_DEVICE_ID_INTEL_CDF_SMBUS:
 	case PCI_DEVICE_ID_INTEL_DNV_SMBUS:
 	case PCI_DEVICE_ID_INTEL_KABYLAKE_PCH_H_SMBUS:
 		priv->features |= FEATURE_I2C_BLOCK_READ;
diff --git a/drivers/i2c/busses/i2c-img-scb.c b/drivers/i2c/busses/i2c-img-scb.c
index 84fb35f6837f..eb1d91b986fd 100644
--- a/drivers/i2c/busses/i2c-img-scb.c
+++ b/drivers/i2c/busses/i2c-img-scb.c
@@ -1459,6 +1459,6 @@ static struct platform_driver img_scb_i2c_driver = {
 };
 module_platform_driver(img_scb_i2c_driver);
 
-MODULE_AUTHOR("James Hogan <james.hogan@imgtec.com>");
+MODULE_AUTHOR("James Hogan <jhogan@kernel.org>");
 MODULE_DESCRIPTION("IMG host I2C driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c
index 54a47b40546f..f96830ffd9f1 100644
--- a/drivers/i2c/busses/i2c-imx.c
+++ b/drivers/i2c/busses/i2c-imx.c
@@ -1021,7 +1021,7 @@ static int i2c_imx_init_recovery_info(struct imx_i2c_struct *i2c_imx,
 	}
 
 	dev_dbg(&pdev->dev, "using scl-gpio %d and sda-gpio %d for recovery\n",
-			rinfo->sda_gpio, rinfo->scl_gpio);
+			rinfo->scl_gpio, rinfo->sda_gpio);
 
 	rinfo->prepare_recovery = i2c_imx_prepare_recovery;
 	rinfo->unprepare_recovery = i2c_imx_unprepare_recovery;
@@ -1100,7 +1100,7 @@ static int i2c_imx_probe(struct platform_device *pdev)
 	}
 
 	/* Request IRQ */
-	ret = devm_request_irq(&pdev->dev, irq, i2c_imx_isr, 0,
+	ret = devm_request_irq(&pdev->dev, irq, i2c_imx_isr, IRQF_SHARED,
 				pdev->name, i2c_imx);
 	if (ret) {
 		dev_err(&pdev->dev, "can't claim irq %d\n", irq);
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 22ffcb73c185..b51adffa4841 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -340,12 +340,15 @@ static int ismt_process_desc(const struct ismt_desc *desc,
 			data->word = dma_buffer[0] | (dma_buffer[1] << 8);
 			break;
 		case I2C_SMBUS_BLOCK_DATA:
-		case I2C_SMBUS_I2C_BLOCK_DATA:
 			if (desc->rxbytes != dma_buffer[0] + 1)
 				return -EMSGSIZE;
 
 			memcpy(data->block, dma_buffer, desc->rxbytes);
 			break;
+		case I2C_SMBUS_I2C_BLOCK_DATA:
+			memcpy(&data->block[1], dma_buffer, desc->rxbytes);
+			data->block[0] = desc->rxbytes;
+			break;
 		}
 		return 0;
 	}
diff --git a/drivers/i2c/busses/i2c-octeon-core.h b/drivers/i2c/busses/i2c-octeon-core.h
index aa3c8f4771c1..a7ef19855bb8 100644
--- a/drivers/i2c/busses/i2c-octeon-core.h
+++ b/drivers/i2c/busses/i2c-octeon-core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/atomic.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 1ebb5e947e0b..23c2ea2baedc 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -360,6 +360,7 @@ static int omap_i2c_init(struct omap_i2c_dev *omap)
 	unsigned long fclk_rate = 12000000;
 	unsigned long internal_clk = 0;
 	struct clk *fclk;
+	int error;
 
 	if (omap->rev >= OMAP_I2C_REV_ON_3430_3530) {
 		/*
@@ -378,6 +379,13 @@ static int omap_i2c_init(struct omap_i2c_dev *omap)
 		 * do this bit unconditionally.
 		 */
 		fclk = clk_get(omap->dev, "fck");
+		if (IS_ERR(fclk)) {
+			error = PTR_ERR(fclk);
+			dev_err(omap->dev, "could not get fck: %i\n", error);
+
+			return error;
+		}
+
 		fclk_rate = clk_get_rate(fclk);
 		clk_put(fclk);
 
@@ -410,6 +418,12 @@ static int omap_i2c_init(struct omap_i2c_dev *omap)
 		else
 			internal_clk = 4000;
 		fclk = clk_get(omap->dev, "fck");
+		if (IS_ERR(fclk)) {
+			error = PTR_ERR(fclk);
+			dev_err(omap->dev, "could not get fck: %i\n", error);
+
+			return error;
+		}
 		fclk_rate = clk_get_rate(fclk) / 1000;
 		clk_put(fclk);
 
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index 0ecdb47a23ab..174579d32e5f 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -85,6 +85,9 @@
 /* SB800 constants */
 #define SB800_PIIX4_SMB_IDX		0xcd6
 
+#define KERNCZ_IMC_IDX			0x3e
+#define KERNCZ_IMC_DATA			0x3f
+
 /*
  * SB800 port is selected by bits 2:1 of the smb_en register (0x2c)
  * or the smb_sel register (0x2e), depending on bit 0 of register 0x2f.
@@ -94,6 +97,12 @@
 #define SB800_PIIX4_PORT_IDX_ALT	0x2e
 #define SB800_PIIX4_PORT_IDX_SEL	0x2f
 #define SB800_PIIX4_PORT_IDX_MASK	0x06
+#define SB800_PIIX4_PORT_IDX_SHIFT	1
+
+/* On kerncz, SmBus0Sel is at bit 20:19 of PMx00 DecodeEn */
+#define SB800_PIIX4_PORT_IDX_KERNCZ		0x02
+#define SB800_PIIX4_PORT_IDX_MASK_KERNCZ	0x18
+#define SB800_PIIX4_PORT_IDX_SHIFT_KERNCZ	3
 
 /* insmod parameters */
 
@@ -149,6 +158,8 @@ static const struct dmi_system_id piix4_dmi_ibm[] = {
  */
 static DEFINE_MUTEX(piix4_mutex_sb800);
 static u8 piix4_port_sel_sb800;
+static u8 piix4_port_mask_sb800;
+static u8 piix4_port_shift_sb800;
 static const char *piix4_main_port_names_sb800[PIIX4_MAX_ADAPTERS] = {
 	" port 0", " port 2", " port 3", " port 4"
 };
@@ -159,6 +170,7 @@ struct i2c_piix4_adapdata {
 
 	/* SB800 */
 	bool sb800_main;
+	bool notify_imc;
 	u8 port;		/* Port number, shifted */
 };
 
@@ -347,7 +359,19 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
 
 	/* Find which register is used for port selection */
 	if (PIIX4_dev->vendor == PCI_VENDOR_ID_AMD) {
-		piix4_port_sel_sb800 = SB800_PIIX4_PORT_IDX_ALT;
+		switch (PIIX4_dev->device) {
+		case PCI_DEVICE_ID_AMD_KERNCZ_SMBUS:
+			piix4_port_sel_sb800 = SB800_PIIX4_PORT_IDX_KERNCZ;
+			piix4_port_mask_sb800 = SB800_PIIX4_PORT_IDX_MASK_KERNCZ;
+			piix4_port_shift_sb800 = SB800_PIIX4_PORT_IDX_SHIFT_KERNCZ;
+			break;
+		case PCI_DEVICE_ID_AMD_HUDSON2_SMBUS:
+		default:
+			piix4_port_sel_sb800 = SB800_PIIX4_PORT_IDX_ALT;
+			piix4_port_mask_sb800 = SB800_PIIX4_PORT_IDX_MASK;
+			piix4_port_shift_sb800 = SB800_PIIX4_PORT_IDX_SHIFT;
+			break;
+		}
 	} else {
 		mutex_lock(&piix4_mutex_sb800);
 		outb_p(SB800_PIIX4_PORT_IDX_SEL, SB800_PIIX4_SMB_IDX);
@@ -355,6 +379,8 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
 		piix4_port_sel_sb800 = (port_sel & 0x01) ?
 				       SB800_PIIX4_PORT_IDX_ALT :
 				       SB800_PIIX4_PORT_IDX;
+		piix4_port_mask_sb800 = SB800_PIIX4_PORT_IDX_MASK;
+		piix4_port_shift_sb800 = SB800_PIIX4_PORT_IDX_SHIFT;
 		mutex_unlock(&piix4_mutex_sb800);
 	}
 
@@ -572,6 +598,67 @@ static s32 piix4_access(struct i2c_adapter * adap, u16 addr,
 	return 0;
 }
 
+static uint8_t piix4_imc_read(uint8_t idx)
+{
+	outb_p(idx, KERNCZ_IMC_IDX);
+	return inb_p(KERNCZ_IMC_DATA);
+}
+
+static void piix4_imc_write(uint8_t idx, uint8_t value)
+{
+	outb_p(idx, KERNCZ_IMC_IDX);
+	outb_p(value, KERNCZ_IMC_DATA);
+}
+
+static int piix4_imc_sleep(void)
+{
+	int timeout = MAX_TIMEOUT;
+
+	if (!request_muxed_region(KERNCZ_IMC_IDX, 2, "smbus_kerncz_imc"))
+		return -EBUSY;
+
+	/* clear response register */
+	piix4_imc_write(0x82, 0x00);
+	/* request ownership flag */
+	piix4_imc_write(0x83, 0xB4);
+	/* kick off IMC Mailbox command 96 */
+	piix4_imc_write(0x80, 0x96);
+
+	while (timeout--) {
+		if (piix4_imc_read(0x82) == 0xfa) {
+			release_region(KERNCZ_IMC_IDX, 2);
+			return 0;
+		}
+		usleep_range(1000, 2000);
+	}
+
+	release_region(KERNCZ_IMC_IDX, 2);
+	return -ETIMEDOUT;
+}
+
+static void piix4_imc_wakeup(void)
+{
+	int timeout = MAX_TIMEOUT;
+
+	if (!request_muxed_region(KERNCZ_IMC_IDX, 2, "smbus_kerncz_imc"))
+		return;
+
+	/* clear response register */
+	piix4_imc_write(0x82, 0x00);
+	/* release ownership flag */
+	piix4_imc_write(0x83, 0xB5);
+	/* kick off IMC Mailbox command 96 */
+	piix4_imc_write(0x80, 0x96);
+
+	while (timeout--) {
+		if (piix4_imc_read(0x82) == 0xfa)
+			break;
+		usleep_range(1000, 2000);
+	}
+
+	release_region(KERNCZ_IMC_IDX, 2);
+}
+
 /*
  * Handles access to multiple SMBus ports on the SB800.
  * The port is selected by bits 2:1 of the smb_en register (0x2c).
@@ -612,12 +699,47 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr,
 		return -EBUSY;
 	}
 
+	/*
+	 * Notify the IMC (Integrated Micro Controller) if required.
+	 * Among other responsibilities, the IMC is in charge of monitoring
+	 * the System fans and temperature sensors, and act accordingly.
+	 * All this is done through SMBus and can/will collide
+	 * with our transactions if they are long (BLOCK_DATA).
+	 * Therefore we need to request the ownership flag during those
+	 * transactions.
+	 */
+	if ((size == I2C_SMBUS_BLOCK_DATA) && adapdata->notify_imc) {
+		int ret;
+
+		ret = piix4_imc_sleep();
+		switch (ret) {
+		case -EBUSY:
+			dev_warn(&adap->dev,
+				 "IMC base address index region 0x%x already in use.\n",
+				 KERNCZ_IMC_IDX);
+			break;
+		case -ETIMEDOUT:
+			dev_warn(&adap->dev,
+				 "Failed to communicate with the IMC.\n");
+			break;
+		default:
+			break;
+		}
+
+		/* If IMC communication fails do not retry */
+		if (ret) {
+			dev_warn(&adap->dev,
+				 "Continuing without IMC notification.\n");
+			adapdata->notify_imc = false;
+		}
+	}
+
 	outb_p(piix4_port_sel_sb800, SB800_PIIX4_SMB_IDX);
 	smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1);
 
 	port = adapdata->port;
-	if ((smba_en_lo & SB800_PIIX4_PORT_IDX_MASK) != port)
-		outb_p((smba_en_lo & ~SB800_PIIX4_PORT_IDX_MASK) | port,
+	if ((smba_en_lo & piix4_port_mask_sb800) != port)
+		outb_p((smba_en_lo & ~piix4_port_mask_sb800) | port,
 		       SB800_PIIX4_SMB_IDX + 1);
 
 	retval = piix4_access(adap, addr, flags, read_write,
@@ -628,6 +750,9 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 addr,
 	/* Release the semaphore */
 	outb_p(smbslvcnt | 0x20, SMBSLVCNT);
 
+	if ((size == I2C_SMBUS_BLOCK_DATA) && adapdata->notify_imc)
+		piix4_imc_wakeup();
+
 	mutex_unlock(&piix4_mutex_sb800);
 
 	return retval;
@@ -679,7 +804,7 @@ static struct i2c_adapter *piix4_main_adapters[PIIX4_MAX_ADAPTERS];
 static struct i2c_adapter *piix4_aux_adapter;
 
 static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba,
-			     bool sb800_main, u8 port,
+			     bool sb800_main, u8 port, bool notify_imc,
 			     const char *name, struct i2c_adapter **padap)
 {
 	struct i2c_adapter *adap;
@@ -706,7 +831,8 @@ static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba,
 
 	adapdata->smba = smba;
 	adapdata->sb800_main = sb800_main;
-	adapdata->port = port << 1;
+	adapdata->port = port << piix4_port_shift_sb800;
+	adapdata->notify_imc = notify_imc;
 
 	/* set up the sysfs linkage to our parent device */
 	adap->dev.parent = &dev->dev;
@@ -728,14 +854,15 @@ static int piix4_add_adapter(struct pci_dev *dev, unsigned short smba,
 	return 0;
 }
 
-static int piix4_add_adapters_sb800(struct pci_dev *dev, unsigned short smba)
+static int piix4_add_adapters_sb800(struct pci_dev *dev, unsigned short smba,
+				    bool notify_imc)
 {
 	struct i2c_piix4_adapdata *adapdata;
 	int port;
 	int retval;
 
 	for (port = 0; port < PIIX4_MAX_ADAPTERS; port++) {
-		retval = piix4_add_adapter(dev, smba, true, port,
+		retval = piix4_add_adapter(dev, smba, true, port, notify_imc,
 					   piix4_main_port_names_sb800[port],
 					   &piix4_main_adapters[port]);
 		if (retval < 0)
@@ -769,6 +896,7 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	     dev->device == PCI_DEVICE_ID_ATI_SBX00_SMBUS &&
 	     dev->revision >= 0x40) ||
 	    dev->vendor == PCI_VENDOR_ID_AMD) {
+		bool notify_imc = false;
 		is_sb800 = true;
 
 		if (!request_region(SB800_PIIX4_SMB_IDX, 2, "smba_idx")) {
@@ -778,6 +906,20 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 			return -EBUSY;
 		}
 
+		if (dev->vendor == PCI_VENDOR_ID_AMD &&
+		    dev->device == PCI_DEVICE_ID_AMD_KERNCZ_SMBUS) {
+			u8 imc;
+
+			/*
+			 * Detect if IMC is active or not, this method is
+			 * described on coreboot's AMD IMC notes
+			 */
+			pci_bus_read_config_byte(dev->bus, PCI_DEVFN(0x14, 3),
+						 0x40, &imc);
+			if (imc & 0x80)
+				notify_imc = true;
+		}
+
 		/* base address location etc changed in SB800 */
 		retval = piix4_setup_sb800(dev, id, 0);
 		if (retval < 0) {
@@ -789,7 +931,7 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		 * Try to register multiplexed main SMBus adapter,
 		 * give up if we can't
 		 */
-		retval = piix4_add_adapters_sb800(dev, retval);
+		retval = piix4_add_adapters_sb800(dev, retval, notify_imc);
 		if (retval < 0) {
 			release_region(SB800_PIIX4_SMB_IDX, 2);
 			return retval;
@@ -800,7 +942,7 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 			return retval;
 
 		/* Try to register main SMBus adapter, give up if we can't */
-		retval = piix4_add_adapter(dev, retval, false, 0, "",
+		retval = piix4_add_adapter(dev, retval, false, 0, false, "",
 					   &piix4_main_adapters[0]);
 		if (retval < 0)
 			return retval;
@@ -827,7 +969,7 @@ static int piix4_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (retval > 0) {
 		/* Try to add the aux adapter if it exists,
 		 * piix4_add_adapter will clean up if this fails */
-		piix4_add_adapter(dev, retval, false, 0,
+		piix4_add_adapter(dev, retval, false, 0, false,
 				  is_sb800 ? piix4_aux_port_name_sb800 : "",
 				  &piix4_aux_adapter);
 	}
diff --git a/drivers/i2c/busses/i2c-sprd.c b/drivers/i2c/busses/i2c-sprd.c
index 22e08ae1704f..25fcc3c1e32b 100644
--- a/drivers/i2c/busses/i2c-sprd.c
+++ b/drivers/i2c/busses/i2c-sprd.c
@@ -627,6 +627,7 @@ static const struct dev_pm_ops sprd_i2c_pm_ops = {
 
 static const struct of_device_id sprd_i2c_of_match[] = {
 	{ .compatible = "sprd,sc9860-i2c", },
+	{},
 };
 
 static struct platform_driver sprd_i2c_driver = {
diff --git a/drivers/i2c/busses/i2c-stm32.h b/drivers/i2c/busses/i2c-stm32.h
new file mode 100644
index 000000000000..dab51761f8c5
--- /dev/null
+++ b/drivers/i2c/busses/i2c-stm32.h
@@ -0,0 +1,20 @@
+/*
+ * i2c-stm32.h
+ *
+ * Copyright (C) M'boumba Cedric Madianga 2017
+ * Author: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
+ *
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+
+#ifndef _I2C_STM32_H
+#define _I2C_STM32_H
+
+enum stm32_i2c_speed {
+	STM32_I2C_SPEED_STANDARD, /* 100 kHz */
+	STM32_I2C_SPEED_FAST, /* 400 kHz */
+	STM32_I2C_SPEED_FAST_PLUS, /* 1 MHz */
+	STM32_I2C_SPEED_END,
+};
+
+#endif /* _I2C_STM32_H */
diff --git a/drivers/i2c/busses/i2c-stm32f4.c b/drivers/i2c/busses/i2c-stm32f4.c
index aceb6f788564..4ec108496f15 100644
--- a/drivers/i2c/busses/i2c-stm32f4.c
+++ b/drivers/i2c/busses/i2c-stm32f4.c
@@ -27,6 +27,8 @@
 #include <linux/platform_device.h>
 #include <linux/reset.h>
 
+#include "i2c-stm32.h"
+
 /* STM32F4 I2C offset registers */
 #define STM32F4_I2C_CR1			0x00
 #define STM32F4_I2C_CR2			0x04
@@ -90,12 +92,6 @@
 #define STM32F4_I2C_MAX_FREQ		46U
 #define HZ_TO_MHZ			1000000
 
-enum stm32f4_i2c_speed {
-	STM32F4_I2C_SPEED_STANDARD, /* 100 kHz */
-	STM32F4_I2C_SPEED_FAST, /* 400 kHz */
-	STM32F4_I2C_SPEED_END,
-};
-
 /**
  * struct stm32f4_i2c_msg - client specific data
  * @addr: 8-bit slave addr, including r/w bit
@@ -159,7 +155,7 @@ static int stm32f4_i2c_set_periph_clk_freq(struct stm32f4_i2c_dev *i2c_dev)
 	i2c_dev->parent_rate = clk_get_rate(i2c_dev->clk);
 	freq = DIV_ROUND_UP(i2c_dev->parent_rate, HZ_TO_MHZ);
 
-	if (i2c_dev->speed == STM32F4_I2C_SPEED_STANDARD) {
+	if (i2c_dev->speed == STM32_I2C_SPEED_STANDARD) {
 		/*
 		 * To reach 100 kHz, the parent clk frequency should be between
 		 * a minimum value of 2 MHz and a maximum value of 46 MHz due
@@ -216,7 +212,7 @@ static void stm32f4_i2c_set_rise_time(struct stm32f4_i2c_dev *i2c_dev)
 	 * is not higher than 46 MHz . As a result trise is at most 4 bits wide
 	 * and so fits into the TRISE bits [5:0].
 	 */
-	if (i2c_dev->speed == STM32F4_I2C_SPEED_STANDARD)
+	if (i2c_dev->speed == STM32_I2C_SPEED_STANDARD)
 		trise = freq + 1;
 	else
 		trise = freq * 3 / 10 + 1;
@@ -230,7 +226,7 @@ static void stm32f4_i2c_set_speed_mode(struct stm32f4_i2c_dev *i2c_dev)
 	u32 val;
 	u32 ccr = 0;
 
-	if (i2c_dev->speed == STM32F4_I2C_SPEED_STANDARD) {
+	if (i2c_dev->speed == STM32_I2C_SPEED_STANDARD) {
 		/*
 		 * In standard mode:
 		 * t_scl_high = t_scl_low = CCR * I2C parent clk period
@@ -808,10 +804,10 @@ static int stm32f4_i2c_probe(struct platform_device *pdev)
 	udelay(2);
 	reset_control_deassert(rst);
 
-	i2c_dev->speed = STM32F4_I2C_SPEED_STANDARD;
+	i2c_dev->speed = STM32_I2C_SPEED_STANDARD;
 	ret = of_property_read_u32(np, "clock-frequency", &clk_rate);
 	if (!ret && clk_rate >= 400000)
-		i2c_dev->speed = STM32F4_I2C_SPEED_FAST;
+		i2c_dev->speed = STM32_I2C_SPEED_FAST;
 
 	i2c_dev->dev = &pdev->dev;
 
diff --git a/drivers/i2c/busses/i2c-stm32f7.c b/drivers/i2c/busses/i2c-stm32f7.c
new file mode 100644
index 000000000000..d4a6e9c2e9aa
--- /dev/null
+++ b/drivers/i2c/busses/i2c-stm32f7.c
@@ -0,0 +1,969 @@
+/*
+ * Driver for STMicroelectronics STM32F7 I2C controller
+ *
+ * This I2C controller is described in the STM32F75xxx and STM32F74xxx Soc
+ * reference manual.
+ * Please see below a link to the documentation:
+ * http://www.st.com/resource/en/reference_manual/dm00124865.pdf
+ *
+ * Copyright (C) M'boumba Cedric Madianga 2017
+ * Author: M'boumba Cedric Madianga <cedric.madianga@gmail.com>
+ *
+ * This driver is based on i2c-stm32f4.c
+ *
+ * License terms:  GNU General Public License (GPL), version 2
+ */
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+#include <linux/slab.h>
+
+#include "i2c-stm32.h"
+
+/* STM32F7 I2C registers */
+#define STM32F7_I2C_CR1				0x00
+#define STM32F7_I2C_CR2				0x04
+#define STM32F7_I2C_TIMINGR			0x10
+#define STM32F7_I2C_ISR				0x18
+#define STM32F7_I2C_ICR				0x1C
+#define STM32F7_I2C_RXDR			0x24
+#define STM32F7_I2C_TXDR			0x28
+
+/* STM32F7 I2C control 1 */
+#define STM32F7_I2C_CR1_ANFOFF			BIT(12)
+#define STM32F7_I2C_CR1_ERRIE			BIT(7)
+#define STM32F7_I2C_CR1_TCIE			BIT(6)
+#define STM32F7_I2C_CR1_STOPIE			BIT(5)
+#define STM32F7_I2C_CR1_NACKIE			BIT(4)
+#define STM32F7_I2C_CR1_ADDRIE			BIT(3)
+#define STM32F7_I2C_CR1_RXIE			BIT(2)
+#define STM32F7_I2C_CR1_TXIE			BIT(1)
+#define STM32F7_I2C_CR1_PE			BIT(0)
+#define STM32F7_I2C_ALL_IRQ_MASK		(STM32F7_I2C_CR1_ERRIE \
+						| STM32F7_I2C_CR1_TCIE \
+						| STM32F7_I2C_CR1_STOPIE \
+						| STM32F7_I2C_CR1_NACKIE \
+						| STM32F7_I2C_CR1_RXIE \
+						| STM32F7_I2C_CR1_TXIE)
+
+/* STM32F7 I2C control 2 */
+#define STM32F7_I2C_CR2_RELOAD			BIT(24)
+#define STM32F7_I2C_CR2_NBYTES_MASK		GENMASK(23, 16)
+#define STM32F7_I2C_CR2_NBYTES(n)		(((n) & 0xff) << 16)
+#define STM32F7_I2C_CR2_NACK			BIT(15)
+#define STM32F7_I2C_CR2_STOP			BIT(14)
+#define STM32F7_I2C_CR2_START			BIT(13)
+#define STM32F7_I2C_CR2_RD_WRN			BIT(10)
+#define STM32F7_I2C_CR2_SADD7_MASK		GENMASK(7, 1)
+#define STM32F7_I2C_CR2_SADD7(n)		(((n) & 0x7f) << 1)
+
+/* STM32F7 I2C Interrupt Status */
+#define STM32F7_I2C_ISR_BUSY			BIT(15)
+#define STM32F7_I2C_ISR_ARLO			BIT(9)
+#define STM32F7_I2C_ISR_BERR			BIT(8)
+#define STM32F7_I2C_ISR_TCR			BIT(7)
+#define STM32F7_I2C_ISR_TC			BIT(6)
+#define STM32F7_I2C_ISR_STOPF			BIT(5)
+#define STM32F7_I2C_ISR_NACKF			BIT(4)
+#define STM32F7_I2C_ISR_RXNE			BIT(2)
+#define STM32F7_I2C_ISR_TXIS			BIT(1)
+
+/* STM32F7 I2C Interrupt Clear */
+#define STM32F7_I2C_ICR_ARLOCF			BIT(9)
+#define STM32F7_I2C_ICR_BERRCF			BIT(8)
+#define STM32F7_I2C_ICR_STOPCF			BIT(5)
+#define STM32F7_I2C_ICR_NACKCF			BIT(4)
+
+/* STM32F7 I2C Timing */
+#define STM32F7_I2C_TIMINGR_PRESC(n)		(((n) & 0xf) << 28)
+#define STM32F7_I2C_TIMINGR_SCLDEL(n)		(((n) & 0xf) << 20)
+#define STM32F7_I2C_TIMINGR_SDADEL(n)		(((n) & 0xf) << 16)
+#define STM32F7_I2C_TIMINGR_SCLH(n)		(((n) & 0xff) << 8)
+#define STM32F7_I2C_TIMINGR_SCLL(n)		((n) & 0xff)
+
+#define STM32F7_I2C_MAX_LEN			0xff
+
+#define STM32F7_I2C_DNF_DEFAULT			0
+#define STM32F7_I2C_DNF_MAX			16
+
+#define STM32F7_I2C_ANALOG_FILTER_ENABLE	1
+#define STM32F7_I2C_ANALOG_FILTER_DELAY_MIN	50	/* ns */
+#define STM32F7_I2C_ANALOG_FILTER_DELAY_MAX	260	/* ns */
+
+#define STM32F7_I2C_RISE_TIME_DEFAULT		25	/* ns */
+#define STM32F7_I2C_FALL_TIME_DEFAULT		10	/* ns */
+
+#define STM32F7_PRESC_MAX			BIT(4)
+#define STM32F7_SCLDEL_MAX			BIT(4)
+#define STM32F7_SDADEL_MAX			BIT(4)
+#define STM32F7_SCLH_MAX			BIT(8)
+#define STM32F7_SCLL_MAX			BIT(8)
+
+/**
+ * struct stm32f7_i2c_spec - private i2c specification timing
+ * @rate: I2C bus speed (Hz)
+ * @rate_min: 80% of I2C bus speed (Hz)
+ * @rate_max: 100% of I2C bus speed (Hz)
+ * @fall_max: Max fall time of both SDA and SCL signals (ns)
+ * @rise_max: Max rise time of both SDA and SCL signals (ns)
+ * @hddat_min: Min data hold time (ns)
+ * @vddat_max: Max data valid time (ns)
+ * @sudat_min: Min data setup time (ns)
+ * @l_min: Min low period of the SCL clock (ns)
+ * @h_min: Min high period of the SCL clock (ns)
+ */
+struct stm32f7_i2c_spec {
+	u32 rate;
+	u32 rate_min;
+	u32 rate_max;
+	u32 fall_max;
+	u32 rise_max;
+	u32 hddat_min;
+	u32 vddat_max;
+	u32 sudat_min;
+	u32 l_min;
+	u32 h_min;
+};
+
+/**
+ * struct stm32f7_i2c_setup - private I2C timing setup parameters
+ * @speed: I2C speed mode (standard, Fast Plus)
+ * @speed_freq: I2C speed frequency  (Hz)
+ * @clock_src: I2C clock source frequency (Hz)
+ * @rise_time: Rise time (ns)
+ * @fall_time: Fall time (ns)
+ * @dnf: Digital filter coefficient (0-16)
+ * @analog_filter: Analog filter delay (On/Off)
+ */
+struct stm32f7_i2c_setup {
+	enum stm32_i2c_speed speed;
+	u32 speed_freq;
+	u32 clock_src;
+	u32 rise_time;
+	u32 fall_time;
+	u8 dnf;
+	bool analog_filter;
+};
+
+/**
+ * struct stm32f7_i2c_timings - private I2C output parameters
+ * @prec: Prescaler value
+ * @scldel: Data setup time
+ * @sdadel: Data hold time
+ * @sclh: SCL high period (master mode)
+ * @sclh: SCL low period (master mode)
+ */
+struct stm32f7_i2c_timings {
+	struct list_head node;
+	u8 presc;
+	u8 scldel;
+	u8 sdadel;
+	u8 sclh;
+	u8 scll;
+};
+
+/**
+ * struct stm32f7_i2c_msg - client specific data
+ * @addr: 8-bit slave addr, including r/w bit
+ * @count: number of bytes to be transferred
+ * @buf: data buffer
+ * @result: result of the transfer
+ * @stop: last I2C msg to be sent, i.e. STOP to be generated
+ */
+struct stm32f7_i2c_msg {
+	u8 addr;
+	u32 count;
+	u8 *buf;
+	int result;
+	bool stop;
+};
+
+/**
+ * struct stm32f7_i2c_dev - private data of the controller
+ * @adap: I2C adapter for this controller
+ * @dev: device for this controller
+ * @base: virtual memory area
+ * @complete: completion of I2C message
+ * @clk: hw i2c clock
+ * @speed: I2C clock frequency of the controller. Standard, Fast or Fast+
+ * @msg: Pointer to data to be written
+ * @msg_num: number of I2C messages to be executed
+ * @msg_id: message identifiant
+ * @f7_msg: customized i2c msg for driver usage
+ * @setup: I2C timing input setup
+ * @timing: I2C computed timings
+ */
+struct stm32f7_i2c_dev {
+	struct i2c_adapter adap;
+	struct device *dev;
+	void __iomem *base;
+	struct completion complete;
+	struct clk *clk;
+	int speed;
+	struct i2c_msg *msg;
+	unsigned int msg_num;
+	unsigned int msg_id;
+	struct stm32f7_i2c_msg f7_msg;
+	struct stm32f7_i2c_setup setup;
+	struct stm32f7_i2c_timings timing;
+};
+
+/**
+ * All these values are coming from I2C Specification, Version 6.0, 4th of
+ * April 2014.
+ *
+ * Table10. Characteristics of the SDA and SCL bus lines for Standard, Fast,
+ * and Fast-mode Plus I2C-bus devices
+ */
+static struct stm32f7_i2c_spec i2c_specs[] = {
+	[STM32_I2C_SPEED_STANDARD] = {
+		.rate = 100000,
+		.rate_min = 80000,
+		.rate_max = 100000,
+		.fall_max = 300,
+		.rise_max = 1000,
+		.hddat_min = 0,
+		.vddat_max = 3450,
+		.sudat_min = 250,
+		.l_min = 4700,
+		.h_min = 4000,
+	},
+	[STM32_I2C_SPEED_FAST] = {
+		.rate = 400000,
+		.rate_min = 320000,
+		.rate_max = 400000,
+		.fall_max = 300,
+		.rise_max = 300,
+		.hddat_min = 0,
+		.vddat_max = 900,
+		.sudat_min = 100,
+		.l_min = 1300,
+		.h_min = 600,
+	},
+	[STM32_I2C_SPEED_FAST_PLUS] = {
+		.rate = 1000000,
+		.rate_min = 800000,
+		.rate_max = 1000000,
+		.fall_max = 100,
+		.rise_max = 120,
+		.hddat_min = 0,
+		.vddat_max = 450,
+		.sudat_min = 50,
+		.l_min = 500,
+		.h_min = 260,
+	},
+};
+
+static const struct stm32f7_i2c_setup stm32f7_setup = {
+	.rise_time = STM32F7_I2C_RISE_TIME_DEFAULT,
+	.fall_time = STM32F7_I2C_FALL_TIME_DEFAULT,
+	.dnf = STM32F7_I2C_DNF_DEFAULT,
+	.analog_filter = STM32F7_I2C_ANALOG_FILTER_ENABLE,
+};
+
+static inline void stm32f7_i2c_set_bits(void __iomem *reg, u32 mask)
+{
+	writel_relaxed(readl_relaxed(reg) | mask, reg);
+}
+
+static inline void stm32f7_i2c_clr_bits(void __iomem *reg, u32 mask)
+{
+	writel_relaxed(readl_relaxed(reg) & ~mask, reg);
+}
+
+static int stm32f7_i2c_compute_timing(struct stm32f7_i2c_dev *i2c_dev,
+				      struct stm32f7_i2c_setup *setup,
+				      struct stm32f7_i2c_timings *output)
+{
+	u32 p_prev = STM32F7_PRESC_MAX;
+	u32 i2cclk = DIV_ROUND_CLOSEST(NSEC_PER_SEC,
+				       setup->clock_src);
+	u32 i2cbus = DIV_ROUND_CLOSEST(NSEC_PER_SEC,
+				       setup->speed_freq);
+	u32 clk_error_prev = i2cbus;
+	u32 tsync;
+	u32 af_delay_min, af_delay_max;
+	u32 dnf_delay;
+	u32 clk_min, clk_max;
+	int sdadel_min, sdadel_max;
+	int scldel_min;
+	struct stm32f7_i2c_timings *v, *_v, *s;
+	struct list_head solutions;
+	u16 p, l, a, h;
+	int ret = 0;
+
+	if (setup->speed >= STM32_I2C_SPEED_END) {
+		dev_err(i2c_dev->dev, "speed out of bound {%d/%d}\n",
+			setup->speed, STM32_I2C_SPEED_END - 1);
+		return -EINVAL;
+	}
+
+	if ((setup->rise_time > i2c_specs[setup->speed].rise_max) ||
+	    (setup->fall_time > i2c_specs[setup->speed].fall_max)) {
+		dev_err(i2c_dev->dev,
+			"timings out of bound Rise{%d>%d}/Fall{%d>%d}\n",
+			setup->rise_time, i2c_specs[setup->speed].rise_max,
+			setup->fall_time, i2c_specs[setup->speed].fall_max);
+		return -EINVAL;
+	}
+
+	if (setup->dnf > STM32F7_I2C_DNF_MAX) {
+		dev_err(i2c_dev->dev,
+			"DNF out of bound %d/%d\n",
+			setup->dnf, STM32F7_I2C_DNF_MAX);
+		return -EINVAL;
+	}
+
+	if (setup->speed_freq > i2c_specs[setup->speed].rate) {
+		dev_err(i2c_dev->dev, "ERROR: Freq {%d/%d}\n",
+			setup->speed_freq, i2c_specs[setup->speed].rate);
+		return -EINVAL;
+	}
+
+	/*  Analog and Digital Filters */
+	af_delay_min =
+		(setup->analog_filter ?
+		 STM32F7_I2C_ANALOG_FILTER_DELAY_MIN : 0);
+	af_delay_max =
+		(setup->analog_filter ?
+		 STM32F7_I2C_ANALOG_FILTER_DELAY_MAX : 0);
+	dnf_delay = setup->dnf * i2cclk;
+
+	sdadel_min = setup->fall_time - i2c_specs[setup->speed].hddat_min -
+		af_delay_min - (setup->dnf + 3) * i2cclk;
+
+	sdadel_max = i2c_specs[setup->speed].vddat_max - setup->rise_time -
+		af_delay_max - (setup->dnf + 4) * i2cclk;
+
+	scldel_min = setup->rise_time + i2c_specs[setup->speed].sudat_min;
+
+	if (sdadel_min < 0)
+		sdadel_min = 0;
+	if (sdadel_max < 0)
+		sdadel_max = 0;
+
+	dev_dbg(i2c_dev->dev, "SDADEL(min/max): %i/%i, SCLDEL(Min): %i\n",
+		sdadel_min, sdadel_max, scldel_min);
+
+	INIT_LIST_HEAD(&solutions);
+	/* Compute possible values for PRESC, SCLDEL and SDADEL */
+	for (p = 0; p < STM32F7_PRESC_MAX; p++) {
+		for (l = 0; l < STM32F7_SCLDEL_MAX; l++) {
+			u32 scldel = (l + 1) * (p + 1) * i2cclk;
+
+			if (scldel < scldel_min)
+				continue;
+
+			for (a = 0; a < STM32F7_SDADEL_MAX; a++) {
+				u32 sdadel = (a * (p + 1) + 1) * i2cclk;
+
+				if (((sdadel >= sdadel_min) &&
+				     (sdadel <= sdadel_max)) &&
+				    (p != p_prev)) {
+					v = kmalloc(sizeof(*v), GFP_KERNEL);
+					if (!v) {
+						ret = -ENOMEM;
+						goto exit;
+					}
+
+					v->presc = p;
+					v->scldel = l;
+					v->sdadel = a;
+					p_prev = p;
+
+					list_add_tail(&v->node,
+						      &solutions);
+				}
+			}
+		}
+	}
+
+	if (list_empty(&solutions)) {
+		dev_err(i2c_dev->dev, "no Prescaler solution\n");
+		ret = -EPERM;
+		goto exit;
+	}
+
+	tsync = af_delay_min + dnf_delay + (2 * i2cclk);
+	s = NULL;
+	clk_max = NSEC_PER_SEC / i2c_specs[setup->speed].rate_min;
+	clk_min = NSEC_PER_SEC / i2c_specs[setup->speed].rate_max;
+
+	/*
+	 * Among Prescaler possibilities discovered above figures out SCL Low
+	 * and High Period. Provided:
+	 * - SCL Low Period has to be higher than SCL Clock Low Period
+	 *   defined by I2C Specification. I2C Clock has to be lower than
+	 *   (SCL Low Period - Analog/Digital filters) / 4.
+	 * - SCL High Period has to be lower than SCL Clock High Period
+	 *   defined by I2C Specification
+	 * - I2C Clock has to be lower than SCL High Period
+	 */
+	list_for_each_entry(v, &solutions, node) {
+		u32 prescaler = (v->presc + 1) * i2cclk;
+
+		for (l = 0; l < STM32F7_SCLL_MAX; l++) {
+			u32 tscl_l = (l + 1) * prescaler + tsync;
+
+			if ((tscl_l < i2c_specs[setup->speed].l_min) ||
+			    (i2cclk >=
+			     ((tscl_l - af_delay_min - dnf_delay) / 4))) {
+				continue;
+			}
+
+			for (h = 0; h < STM32F7_SCLH_MAX; h++) {
+				u32 tscl_h = (h + 1) * prescaler + tsync;
+				u32 tscl = tscl_l + tscl_h +
+					setup->rise_time + setup->fall_time;
+
+				if ((tscl >= clk_min) && (tscl <= clk_max) &&
+				    (tscl_h >= i2c_specs[setup->speed].h_min) &&
+				    (i2cclk < tscl_h)) {
+					int clk_error = tscl - i2cbus;
+
+					if (clk_error < 0)
+						clk_error = -clk_error;
+
+					if (clk_error < clk_error_prev) {
+						clk_error_prev = clk_error;
+						v->scll = l;
+						v->sclh = h;
+						s = v;
+					}
+				}
+			}
+		}
+	}
+
+	if (!s) {
+		dev_err(i2c_dev->dev, "no solution at all\n");
+		ret = -EPERM;
+		goto exit;
+	}
+
+	output->presc = s->presc;
+	output->scldel = s->scldel;
+	output->sdadel = s->sdadel;
+	output->scll = s->scll;
+	output->sclh = s->sclh;
+
+	dev_dbg(i2c_dev->dev,
+		"Presc: %i, scldel: %i, sdadel: %i, scll: %i, sclh: %i\n",
+		output->presc,
+		output->scldel, output->sdadel,
+		output->scll, output->sclh);
+
+exit:
+	/* Release list and memory */
+	list_for_each_entry_safe(v, _v, &solutions, node) {
+		list_del(&v->node);
+		kfree(v);
+	}
+
+	return ret;
+}
+
+static int stm32f7_i2c_setup_timing(struct stm32f7_i2c_dev *i2c_dev,
+				    struct stm32f7_i2c_setup *setup)
+{
+	int ret = 0;
+
+	setup->speed = i2c_dev->speed;
+	setup->speed_freq = i2c_specs[setup->speed].rate;
+	setup->clock_src = clk_get_rate(i2c_dev->clk);
+
+	if (!setup->clock_src) {
+		dev_err(i2c_dev->dev, "clock rate is 0\n");
+		return -EINVAL;
+	}
+
+	do {
+		ret = stm32f7_i2c_compute_timing(i2c_dev, setup,
+						 &i2c_dev->timing);
+		if (ret) {
+			dev_err(i2c_dev->dev,
+				"failed to compute I2C timings.\n");
+			if (i2c_dev->speed > STM32_I2C_SPEED_STANDARD) {
+				i2c_dev->speed--;
+				setup->speed = i2c_dev->speed;
+				setup->speed_freq =
+					i2c_specs[setup->speed].rate;
+				dev_warn(i2c_dev->dev,
+					 "downgrade I2C Speed Freq to (%i)\n",
+					 i2c_specs[setup->speed].rate);
+			} else {
+				break;
+			}
+		}
+	} while (ret);
+
+	if (ret) {
+		dev_err(i2c_dev->dev, "Impossible to compute I2C timings.\n");
+		return ret;
+	}
+
+	dev_dbg(i2c_dev->dev, "I2C Speed(%i), Freq(%i), Clk Source(%i)\n",
+		setup->speed, setup->speed_freq, setup->clock_src);
+	dev_dbg(i2c_dev->dev, "I2C Rise(%i) and Fall(%i) Time\n",
+		setup->rise_time, setup->fall_time);
+	dev_dbg(i2c_dev->dev, "I2C Analog Filter(%s), DNF(%i)\n",
+		(setup->analog_filter ? "On" : "Off"), setup->dnf);
+
+	return 0;
+}
+
+static void stm32f7_i2c_hw_config(struct stm32f7_i2c_dev *i2c_dev)
+{
+	struct stm32f7_i2c_timings *t = &i2c_dev->timing;
+	u32 timing = 0;
+
+	/* Timing settings */
+	timing |= STM32F7_I2C_TIMINGR_PRESC(t->presc);
+	timing |= STM32F7_I2C_TIMINGR_SCLDEL(t->scldel);
+	timing |= STM32F7_I2C_TIMINGR_SDADEL(t->sdadel);
+	timing |= STM32F7_I2C_TIMINGR_SCLH(t->sclh);
+	timing |= STM32F7_I2C_TIMINGR_SCLL(t->scll);
+	writel_relaxed(timing, i2c_dev->base + STM32F7_I2C_TIMINGR);
+
+	/* Enable I2C */
+	if (i2c_dev->setup.analog_filter)
+		stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1,
+				     STM32F7_I2C_CR1_ANFOFF);
+	else
+		stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1,
+				     STM32F7_I2C_CR1_ANFOFF);
+	stm32f7_i2c_set_bits(i2c_dev->base + STM32F7_I2C_CR1,
+			     STM32F7_I2C_CR1_PE);
+}
+
+static void stm32f7_i2c_write_tx_data(struct stm32f7_i2c_dev *i2c_dev)
+{
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	void __iomem *base = i2c_dev->base;
+
+	if (f7_msg->count) {
+		writeb_relaxed(*f7_msg->buf++, base + STM32F7_I2C_TXDR);
+		f7_msg->count--;
+	}
+}
+
+static void stm32f7_i2c_read_rx_data(struct stm32f7_i2c_dev *i2c_dev)
+{
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	void __iomem *base = i2c_dev->base;
+
+	if (f7_msg->count) {
+		*f7_msg->buf++ = readb_relaxed(base + STM32F7_I2C_RXDR);
+		f7_msg->count--;
+	}
+}
+
+static void stm32f7_i2c_reload(struct stm32f7_i2c_dev *i2c_dev)
+{
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	u32 cr2;
+
+	cr2 = readl_relaxed(i2c_dev->base + STM32F7_I2C_CR2);
+
+	cr2 &= ~STM32F7_I2C_CR2_NBYTES_MASK;
+	if (f7_msg->count > STM32F7_I2C_MAX_LEN) {
+		cr2 |= STM32F7_I2C_CR2_NBYTES(STM32F7_I2C_MAX_LEN);
+	} else {
+		cr2 &= ~STM32F7_I2C_CR2_RELOAD;
+		cr2 |= STM32F7_I2C_CR2_NBYTES(f7_msg->count);
+	}
+
+	writel_relaxed(cr2, i2c_dev->base + STM32F7_I2C_CR2);
+}
+
+static int stm32f7_i2c_wait_free_bus(struct stm32f7_i2c_dev *i2c_dev)
+{
+	u32 status;
+	int ret;
+
+	ret = readl_relaxed_poll_timeout(i2c_dev->base + STM32F7_I2C_ISR,
+					 status,
+					 !(status & STM32F7_I2C_ISR_BUSY),
+					 10, 1000);
+	if (ret) {
+		dev_dbg(i2c_dev->dev, "bus busy\n");
+		ret = -EBUSY;
+	}
+
+	return ret;
+}
+
+static void stm32f7_i2c_xfer_msg(struct stm32f7_i2c_dev *i2c_dev,
+				 struct i2c_msg *msg)
+{
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	void __iomem *base = i2c_dev->base;
+	u32 cr1, cr2;
+
+	f7_msg->addr = msg->addr;
+	f7_msg->buf = msg->buf;
+	f7_msg->count = msg->len;
+	f7_msg->result = 0;
+	f7_msg->stop = (i2c_dev->msg_id >= i2c_dev->msg_num - 1);
+
+	reinit_completion(&i2c_dev->complete);
+
+	cr1 = readl_relaxed(base + STM32F7_I2C_CR1);
+	cr2 = readl_relaxed(base + STM32F7_I2C_CR2);
+
+	/* Set transfer direction */
+	cr2 &= ~STM32F7_I2C_CR2_RD_WRN;
+	if (msg->flags & I2C_M_RD)
+		cr2 |= STM32F7_I2C_CR2_RD_WRN;
+
+	/* Set slave address */
+	cr2 &= ~STM32F7_I2C_CR2_SADD7_MASK;
+	cr2 |= STM32F7_I2C_CR2_SADD7(f7_msg->addr);
+
+	/* Set nb bytes to transfer and reload if needed */
+	cr2 &= ~(STM32F7_I2C_CR2_NBYTES_MASK | STM32F7_I2C_CR2_RELOAD);
+	if (f7_msg->count > STM32F7_I2C_MAX_LEN) {
+		cr2 |= STM32F7_I2C_CR2_NBYTES(STM32F7_I2C_MAX_LEN);
+		cr2 |= STM32F7_I2C_CR2_RELOAD;
+	} else {
+		cr2 |= STM32F7_I2C_CR2_NBYTES(f7_msg->count);
+	}
+
+	/* Enable NACK, STOP, error and transfer complete interrupts */
+	cr1 |= STM32F7_I2C_CR1_ERRIE | STM32F7_I2C_CR1_TCIE |
+		STM32F7_I2C_CR1_STOPIE | STM32F7_I2C_CR1_NACKIE;
+
+	/* Clear TX/RX interrupt */
+	cr1 &= ~(STM32F7_I2C_CR1_RXIE | STM32F7_I2C_CR1_TXIE);
+
+	/* Enable RX/TX interrupt according to msg direction */
+	if (msg->flags & I2C_M_RD)
+		cr1 |= STM32F7_I2C_CR1_RXIE;
+	else
+		cr1 |= STM32F7_I2C_CR1_TXIE;
+
+	/* Configure Start/Repeated Start */
+	cr2 |= STM32F7_I2C_CR2_START;
+
+	/* Write configurations registers */
+	writel_relaxed(cr1, base + STM32F7_I2C_CR1);
+	writel_relaxed(cr2, base + STM32F7_I2C_CR2);
+}
+
+static void stm32f7_i2c_disable_irq(struct stm32f7_i2c_dev *i2c_dev, u32 mask)
+{
+	stm32f7_i2c_clr_bits(i2c_dev->base + STM32F7_I2C_CR1, mask);
+}
+
+static irqreturn_t stm32f7_i2c_isr_event(int irq, void *data)
+{
+	struct stm32f7_i2c_dev *i2c_dev = data;
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	void __iomem *base = i2c_dev->base;
+	u32 status, mask;
+
+	status = readl_relaxed(i2c_dev->base + STM32F7_I2C_ISR);
+
+	/* Tx empty */
+	if (status & STM32F7_I2C_ISR_TXIS)
+		stm32f7_i2c_write_tx_data(i2c_dev);
+
+	/* RX not empty */
+	if (status & STM32F7_I2C_ISR_RXNE)
+		stm32f7_i2c_read_rx_data(i2c_dev);
+
+	/* NACK received */
+	if (status & STM32F7_I2C_ISR_NACKF) {
+		dev_dbg(i2c_dev->dev, "<%s>: Receive NACK\n", __func__);
+		writel_relaxed(STM32F7_I2C_ICR_NACKCF, base + STM32F7_I2C_ICR);
+		f7_msg->result = -ENXIO;
+	}
+
+	/* STOP detection flag */
+	if (status & STM32F7_I2C_ISR_STOPF) {
+		/* Disable interrupts */
+		stm32f7_i2c_disable_irq(i2c_dev, STM32F7_I2C_ALL_IRQ_MASK);
+
+		/* Clear STOP flag */
+		writel_relaxed(STM32F7_I2C_ICR_STOPCF, base + STM32F7_I2C_ICR);
+
+		complete(&i2c_dev->complete);
+	}
+
+	/* Transfer complete */
+	if (status & STM32F7_I2C_ISR_TC) {
+		if (f7_msg->stop) {
+			mask = STM32F7_I2C_CR2_STOP;
+			stm32f7_i2c_set_bits(base + STM32F7_I2C_CR2, mask);
+		} else {
+			i2c_dev->msg_id++;
+			i2c_dev->msg++;
+			stm32f7_i2c_xfer_msg(i2c_dev, i2c_dev->msg);
+		}
+	}
+
+	/*
+	 * Transfer Complete Reload: 255 data bytes have been transferred
+	 * We have to prepare the I2C controller to transfer the remaining
+	 * data.
+	 */
+	if (status & STM32F7_I2C_ISR_TCR)
+		stm32f7_i2c_reload(i2c_dev);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t stm32f7_i2c_isr_error(int irq, void *data)
+{
+	struct stm32f7_i2c_dev *i2c_dev = data;
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	void __iomem *base = i2c_dev->base;
+	struct device *dev = i2c_dev->dev;
+	u32 status;
+
+	status = readl_relaxed(i2c_dev->base + STM32F7_I2C_ISR);
+
+	/* Bus error */
+	if (status & STM32F7_I2C_ISR_BERR) {
+		dev_err(dev, "<%s>: Bus error\n", __func__);
+		writel_relaxed(STM32F7_I2C_ICR_BERRCF, base + STM32F7_I2C_ICR);
+		f7_msg->result = -EIO;
+	}
+
+	/* Arbitration loss */
+	if (status & STM32F7_I2C_ISR_ARLO) {
+		dev_dbg(dev, "<%s>: Arbitration loss\n", __func__);
+		writel_relaxed(STM32F7_I2C_ICR_ARLOCF, base + STM32F7_I2C_ICR);
+		f7_msg->result = -EAGAIN;
+	}
+
+	stm32f7_i2c_disable_irq(i2c_dev, STM32F7_I2C_ALL_IRQ_MASK);
+
+	complete(&i2c_dev->complete);
+
+	return IRQ_HANDLED;
+}
+
+static int stm32f7_i2c_xfer(struct i2c_adapter *i2c_adap,
+			    struct i2c_msg msgs[], int num)
+{
+	struct stm32f7_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap);
+	struct stm32f7_i2c_msg *f7_msg = &i2c_dev->f7_msg;
+	unsigned long time_left;
+	int ret;
+
+	i2c_dev->msg = msgs;
+	i2c_dev->msg_num = num;
+	i2c_dev->msg_id = 0;
+
+	ret = clk_enable(i2c_dev->clk);
+	if (ret) {
+		dev_err(i2c_dev->dev, "Failed to enable clock\n");
+		return ret;
+	}
+
+	ret = stm32f7_i2c_wait_free_bus(i2c_dev);
+	if (ret)
+		goto clk_free;
+
+	stm32f7_i2c_xfer_msg(i2c_dev, msgs);
+
+	time_left = wait_for_completion_timeout(&i2c_dev->complete,
+						i2c_dev->adap.timeout);
+	ret = f7_msg->result;
+
+	if (!time_left) {
+		dev_dbg(i2c_dev->dev, "Access to slave 0x%x timed out\n",
+			i2c_dev->msg->addr);
+		ret = -ETIMEDOUT;
+	}
+
+clk_free:
+	clk_disable(i2c_dev->clk);
+
+	return (ret < 0) ? ret : num;
+}
+
+static u32 stm32f7_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm stm32f7_i2c_algo = {
+	.master_xfer = stm32f7_i2c_xfer,
+	.functionality = stm32f7_i2c_func,
+};
+
+static int stm32f7_i2c_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct stm32f7_i2c_dev *i2c_dev;
+	const struct stm32f7_i2c_setup *setup;
+	struct resource *res;
+	u32 irq_error, irq_event, clk_rate, rise_time, fall_time;
+	struct i2c_adapter *adap;
+	struct reset_control *rst;
+	int ret;
+
+	i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL);
+	if (!i2c_dev)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	i2c_dev->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(i2c_dev->base))
+		return PTR_ERR(i2c_dev->base);
+
+	irq_event = irq_of_parse_and_map(np, 0);
+	if (!irq_event) {
+		dev_err(&pdev->dev, "IRQ event missing or invalid\n");
+		return -EINVAL;
+	}
+
+	irq_error = irq_of_parse_and_map(np, 1);
+	if (!irq_error) {
+		dev_err(&pdev->dev, "IRQ error missing or invalid\n");
+		return -EINVAL;
+	}
+
+	i2c_dev->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(i2c_dev->clk)) {
+		dev_err(&pdev->dev, "Error: Missing controller clock\n");
+		return PTR_ERR(i2c_dev->clk);
+	}
+	ret = clk_prepare_enable(i2c_dev->clk);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to prepare_enable clock\n");
+		return ret;
+	}
+
+	i2c_dev->speed = STM32_I2C_SPEED_STANDARD;
+	ret = device_property_read_u32(&pdev->dev, "clock-frequency",
+				       &clk_rate);
+	if (!ret && clk_rate >= 1000000)
+		i2c_dev->speed = STM32_I2C_SPEED_FAST_PLUS;
+	else if (!ret && clk_rate >= 400000)
+		i2c_dev->speed = STM32_I2C_SPEED_FAST;
+	else if (!ret && clk_rate >= 100000)
+		i2c_dev->speed = STM32_I2C_SPEED_STANDARD;
+
+	rst = devm_reset_control_get(&pdev->dev, NULL);
+	if (IS_ERR(rst)) {
+		dev_err(&pdev->dev, "Error: Missing controller reset\n");
+		ret = PTR_ERR(rst);
+		goto clk_free;
+	}
+	reset_control_assert(rst);
+	udelay(2);
+	reset_control_deassert(rst);
+
+	i2c_dev->dev = &pdev->dev;
+
+	ret = devm_request_irq(&pdev->dev, irq_event, stm32f7_i2c_isr_event, 0,
+			       pdev->name, i2c_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request irq event %i\n",
+			irq_event);
+		goto clk_free;
+	}
+
+	ret = devm_request_irq(&pdev->dev, irq_error, stm32f7_i2c_isr_error, 0,
+			       pdev->name, i2c_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request irq error %i\n",
+			irq_error);
+		goto clk_free;
+	}
+
+	setup = of_device_get_match_data(&pdev->dev);
+	i2c_dev->setup = *setup;
+
+	ret = device_property_read_u32(i2c_dev->dev, "i2c-scl-rising-time-ns",
+				       &rise_time);
+	if (!ret)
+		i2c_dev->setup.rise_time = rise_time;
+
+	ret = device_property_read_u32(i2c_dev->dev, "i2c-scl-falling-time-ns",
+				       &fall_time);
+	if (!ret)
+		i2c_dev->setup.fall_time = fall_time;
+
+	ret = stm32f7_i2c_setup_timing(i2c_dev, &i2c_dev->setup);
+	if (ret)
+		goto clk_free;
+
+	stm32f7_i2c_hw_config(i2c_dev);
+
+	adap = &i2c_dev->adap;
+	i2c_set_adapdata(adap, i2c_dev);
+	snprintf(adap->name, sizeof(adap->name), "STM32F7 I2C(%pa)",
+		 &res->start);
+	adap->owner = THIS_MODULE;
+	adap->timeout = 2 * HZ;
+	adap->retries = 3;
+	adap->algo = &stm32f7_i2c_algo;
+	adap->dev.parent = &pdev->dev;
+	adap->dev.of_node = pdev->dev.of_node;
+
+	init_completion(&i2c_dev->complete);
+
+	ret = i2c_add_adapter(adap);
+	if (ret)
+		goto clk_free;
+
+	platform_set_drvdata(pdev, i2c_dev);
+
+	clk_disable(i2c_dev->clk);
+
+	dev_info(i2c_dev->dev, "STM32F7 I2C-%d bus adapter\n", adap->nr);
+
+	return 0;
+
+clk_free:
+	clk_disable_unprepare(i2c_dev->clk);
+
+	return ret;
+}
+
+static int stm32f7_i2c_remove(struct platform_device *pdev)
+{
+	struct stm32f7_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
+
+	i2c_del_adapter(&i2c_dev->adap);
+
+	clk_unprepare(i2c_dev->clk);
+
+	return 0;
+}
+
+static const struct of_device_id stm32f7_i2c_match[] = {
+	{ .compatible = "st,stm32f7-i2c", .data = &stm32f7_setup},
+	{},
+};
+MODULE_DEVICE_TABLE(of, stm32f7_i2c_match);
+
+static struct platform_driver stm32f7_i2c_driver = {
+	.driver = {
+		.name = "stm32f7-i2c",
+		.of_match_table = stm32f7_i2c_match,
+	},
+	.probe = stm32f7_i2c_probe,
+	.remove = stm32f7_i2c_remove,
+};
+
+module_platform_driver(stm32f7_i2c_driver);
+
+MODULE_AUTHOR("M'boumba Cedric Madianga <cedric.madianga@gmail.com>");
+MODULE_DESCRIPTION("STMicroelectronics STM32F7 I2C driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/i2c/muxes/Makefile b/drivers/i2c/muxes/Makefile
index 4a67d3199877..6d9d865e8518 100644
--- a/drivers/i2c/muxes/Makefile
+++ b/drivers/i2c/muxes/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for multiplexer I2C chip drivers.
 
diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index c99a25c075bc..cf1fb3fb5d26 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -117,7 +117,9 @@ config BLK_DEV_DELKIN
 
 config BLK_DEV_IDECD
 	tristate "Include IDE/ATAPI CDROM support"
+	depends on BLK_DEV
 	select IDE_ATAPI
+	select CDROM
 	---help---
 	  If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is
 	  a newer protocol used by IDE CD-ROM and TAPE drives, similar to the
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index 2a8c417d4081..9f617a77970f 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # link order is important here
 #
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 968038482d2f..7d4e5c08f133 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Provides ACPI support for IDE drives.
  *
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index 14d1e7d9a1d6..0e6bc631a1ca 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -282,7 +282,7 @@ int ide_cd_expiry(ide_drive_t *drive)
 	struct request *rq = drive->hwif->rq;
 	unsigned long wait = 0;
 
-	debug_log("%s: rq->cmd[0]: 0x%x\n", __func__, rq->cmd[0]);
+	debug_log("%s: scsi_req(rq)->cmd[0]: 0x%x\n", __func__, scsi_req(rq)->cmd[0]);
 
 	/*
 	 * Some commands are *slow* and normally take a long time to complete.
@@ -463,7 +463,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 				return ide_do_reset(drive);
 			}
 
-			debug_log("[cmd %x]: check condition\n", rq->cmd[0]);
+			debug_log("[cmd %x]: check condition\n", scsi_req(rq)->cmd[0]);
 
 			/* Retry operation */
 			ide_retry_pc(drive);
@@ -531,7 +531,7 @@ static ide_startstop_t ide_pc_intr(ide_drive_t *drive)
 		ide_pad_transfer(drive, write, bcount);
 
 	debug_log("[cmd %x] transferred %d bytes, padded %d bytes, resid: %u\n",
-		  rq->cmd[0], done, bcount, scsi_req(rq)->resid_len);
+		  scsi_req(rq)->cmd[0], done, bcount, scsi_req(rq)->resid_len);
 
 	/* And set the interrupt handler again */
 	ide_set_handler(drive, ide_pc_intr, timeout);
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 81e18f9628d0..6ff0be8cbdc9 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -867,11 +867,16 @@ static void msf_from_bcd(struct atapi_msf *msf)
 int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
 {
 	struct cdrom_info *info = drive->driver_data;
-	struct cdrom_device_info *cdi = &info->devinfo;
+	struct cdrom_device_info *cdi;
 	unsigned char cmd[BLK_MAX_CDB];
 
 	ide_debug_log(IDE_DBG_FUNC, "enter");
 
+	if (!info)
+		return -EIO;
+
+	cdi = &info->devinfo;
+
 	memset(cmd, 0, BLK_MAX_CDB);
 	cmd[0] = GPCMD_TEST_UNIT_READY;
 
@@ -1328,6 +1333,7 @@ static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
 	unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9);
 	struct scsi_request *req = scsi_req(rq);
 
+	scsi_req_init(req);
 	memset(req->cmd, 0, BLK_MAX_CDB);
 
 	if (rq_data_dir(rq) == READ)
diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h
index eea60c986c4f..264e822eba58 100644
--- a/drivers/ide/ide-cd.h
+++ b/drivers/ide/ide-cd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1996-98  Erik Andersen
  *  Copyright (C) 1998-2000 Jens Axboe
diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c
index 9d26c9737e21..2acca12b9c94 100644
--- a/drivers/ide/ide-cd_ioctl.c
+++ b/drivers/ide/ide-cd_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cdrom.c IOCTLs handling for ide-cd driver.
  *
diff --git a/drivers/ide/ide-cd_verbose.c b/drivers/ide/ide-cd_verbose.c
index 58a6feb74c02..5ecd5b2f03a3 100644
--- a/drivers/ide/ide-cd_verbose.c
+++ b/drivers/ide/ide-cd_verbose.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Verbose error logging for ATAPI CD/DVD devices.
  *
diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c
index ef7c8c43a380..4e20747af32e 100644
--- a/drivers/ide/ide-devsets.c
+++ b/drivers/ide/ide-devsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/kernel.h>
 #include <linux/gfp.h>
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 241983da5fc4..188d1b03715d 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1994-1998	   Linus Torvalds & authors (see below)
  *  Copyright (C) 1998-2002	   Linux ATA Development
diff --git a/drivers/ide/ide-disk.h b/drivers/ide/ide-disk.h
index d511dab7c4aa..0e8cc18bfda6 100644
--- a/drivers/ide/ide-disk.h
+++ b/drivers/ide/ide-disk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IDE_DISK_H
 #define __IDE_DISK_H
 
diff --git a/drivers/ide/ide-disk_ioctl.c b/drivers/ide/ide-disk_ioctl.c
index da36f729ff32..2c45616cff4f 100644
--- a/drivers/ide/ide-disk_ioctl.c
+++ b/drivers/ide/ide-disk_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/ide.h>
 #include <linux/hdreg.h>
diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c
index 0d1fae6cba6d..82a36ced4e96 100644
--- a/drivers/ide/ide-disk_proc.c
+++ b/drivers/ide/ide-disk_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/ide.h>
 #include <linux/slab.h>
diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 3ddd88219906..5bd2aafc3753 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IDE ATAPI floppy driver.
  *
diff --git a/drivers/ide/ide-floppy.h b/drivers/ide/ide-floppy.h
index 6dd2beb48434..13c9b4b6d75e 100644
--- a/drivers/ide/ide-floppy.h
+++ b/drivers/ide/ide-floppy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IDE_FLOPPY_H
 #define __IDE_FLOPPY_H
 
diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c
index a22ca8467010..40a2ebe34e1d 100644
--- a/drivers/ide/ide-floppy_ioctl.c
+++ b/drivers/ide/ide-floppy_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ide-floppy IOCTLs handling.
  */
diff --git a/drivers/ide/ide-floppy_proc.c b/drivers/ide/ide-floppy_proc.c
index e7a25ea757df..471457ebea67 100644
--- a/drivers/ide/ide-floppy_proc.c
+++ b/drivers/ide/ide-floppy_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/export.h>
 #include <linux/ide.h>
diff --git a/drivers/ide/ide-gd.h b/drivers/ide/ide-gd.h
index 55970772bd04..af3fe1880e9e 100644
--- a/drivers/ide/ide-gd.h
+++ b/drivers/ide/ide-gd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IDE_GD_H
 #define __IDE_GD_H
 
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 3a234701d92c..6f25da56a169 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -611,9 +611,9 @@ static int drive_is_ready(ide_drive_t *drive)
  *	logic that wants cleaning up.
  */
  
-void ide_timer_expiry (unsigned long data)
+void ide_timer_expiry (struct timer_list *t)
 {
-	ide_hwif_t	*hwif = (ide_hwif_t *)data;
+	ide_hwif_t	*hwif = from_timer(hwif, t, timer);
 	ide_drive_t	*uninitialized_var(drive);
 	ide_handler_t	*handler;
 	unsigned long	flags;
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
index 1f264d5d3f3f..6465bcc7cea6 100644
--- a/drivers/ide/ide-park.c
+++ b/drivers/ide/ide-park.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/gfp.h>
 #include <linux/ide.h>
diff --git a/drivers/ide/ide-pio-blacklist.c b/drivers/ide/ide-pio-blacklist.c
index 40e683a84ff9..1fd24798e5c9 100644
--- a/drivers/ide/ide-pio-blacklist.c
+++ b/drivers/ide/ide-pio-blacklist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PIO blacklist.  Some drives incorrectly report their maximal PIO mode,
  * at least in respect to CMD640.  Here we keep info on some known drives.
diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c
index 544f02d673ca..ad8a125defdd 100644
--- a/drivers/ide/ide-pm.c
+++ b/drivers/ide/ide-pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/gfp.h>
 #include <linux/ide.h>
@@ -89,9 +90,9 @@ int generic_ide_resume(struct device *dev)
 	}
 
 	memset(&rqpm, 0, sizeof(rqpm));
-	rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, __GFP_RECLAIM);
+	rq = blk_get_request_flags(drive->queue, REQ_OP_DRV_IN,
+				   BLK_MQ_REQ_PREEMPT);
 	ide_req(rq)->type = ATA_PRIV_PM_RESUME;
-	rq->rq_flags |= RQF_PREEMPT;
 	rq->special = &rqpm;
 	rqpm.pm_step = IDE_PM_START_RESUME;
 	rqpm.pm_state = PM_EVENT_ON;
diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c
index 01b2adfd8226..17fd55af4d92 100644
--- a/drivers/ide/ide-probe.c
+++ b/drivers/ide/ide-probe.c
@@ -1184,7 +1184,7 @@ static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index)
 
 	spin_lock_init(&hwif->lock);
 
-	setup_timer(&hwif->timer, &ide_timer_expiry, (unsigned long)hwif);
+	timer_setup(&hwif->timer, ide_timer_expiry, 0);
 
 	init_completion(&hwif->gendev_rel_comp);
 
@@ -1451,6 +1451,7 @@ int ide_host_register(struct ide_host *host, const struct ide_port_info *d,
 		if (hwif_init(hwif) == 0) {
 			printk(KERN_INFO "%s: failed to initialize IDE "
 					 "interface\n", hwif->name);
+			device_unregister(hwif->portdev);
 			device_unregister(&hwif->gendev);
 			ide_disable_port(hwif);
 			continue;
diff --git a/drivers/ide/ide-scan-pci.c b/drivers/ide/ide-scan-pci.c
index 86aa88aeb3a6..acf874800ca4 100644
--- a/drivers/ide/ide-scan-pci.c
+++ b/drivers/ide/ide-scan-pci.c
@@ -56,6 +56,7 @@ static int __init ide_scan_pcidev(struct pci_dev *dev)
 {
 	struct list_head *l;
 	struct pci_driver *d;
+	int ret;
 
 	list_for_each(l, &ide_pci_drivers) {
 		d = list_entry(l, struct pci_driver, node);
@@ -63,10 +64,14 @@ static int __init ide_scan_pcidev(struct pci_dev *dev)
 			const struct pci_device_id *id =
 				pci_match_id(d->id_table, dev);
 
-			if (id != NULL && d->probe(dev, id) >= 0) {
-				dev->driver = d;
-				pci_dev_get(dev);
-				return 1;
+			if (id != NULL) {
+				pci_assign_irq(dev);
+				ret = d->probe(dev, id);
+				if (ret >= 0) {
+					dev->driver = d;
+					pci_dev_get(dev);
+					return 1;
+				}
 			}
 		}
 	}
diff --git a/drivers/ide/ide-sysfs.c b/drivers/ide/ide-sysfs.c
index 84a6a9e08d64..b9dfeb2e8bd6 100644
--- a/drivers/ide/ide-sysfs.c
+++ b/drivers/ide/ide-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/ide.h>
 
diff --git a/drivers/ide/qd65xx.h b/drivers/ide/qd65xx.h
index 1fba2a5f281c..01a43ab45e0e 100644
--- a/drivers/ide/qd65xx.h
+++ b/drivers/ide/qd65xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2000	Linus Torvalds & authors
  */
diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c
index 112d2fe1bcdb..fdc8e813170c 100644
--- a/drivers/ide/setup-pci.c
+++ b/drivers/ide/setup-pci.c
@@ -179,6 +179,7 @@ EXPORT_SYMBOL_GPL(ide_setup_pci_noise);
 /**
  *	ide_pci_enable	-	do PCI enables
  *	@dev: PCI device
+ *	@bars: PCI BARs mask
  *	@d: IDE port info
  *
  *	Enable the IDE PCI device. We attempt to enable the device in full
@@ -189,9 +190,10 @@ EXPORT_SYMBOL_GPL(ide_setup_pci_noise);
  *	Returns zero on success or an error code
  */
 
-static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d)
+static int ide_pci_enable(struct pci_dev *dev, int bars,
+			  const struct ide_port_info *d)
 {
-	int ret, bars;
+	int ret;
 
 	if (pci_enable_device(dev)) {
 		ret = pci_enable_device_io(dev);
@@ -216,18 +218,6 @@ static int ide_pci_enable(struct pci_dev *dev, const struct ide_port_info *d)
 		goto out;
 	}
 
-	if (d->host_flags & IDE_HFLAG_SINGLE)
-		bars = (1 << 2) - 1;
-	else
-		bars = (1 << 4) - 1;
-
-	if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) {
-		if (d->host_flags & IDE_HFLAG_CS5520)
-			bars |= (1 << 2);
-		else
-			bars |= (1 << 4);
-	}
-
 	ret = pci_request_selected_regions(dev, bars, d->name);
 	if (ret < 0)
 		printk(KERN_ERR "%s %s: can't reserve resources\n",
@@ -403,6 +393,7 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
 /**
  *	ide_setup_pci_controller	-	set up IDE PCI
  *	@dev: PCI device
+ *	@bars: PCI BARs mask
  *	@d: IDE port info
  *	@noisy: verbose flag
  *
@@ -411,7 +402,7 @@ int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
  *	and enables it if need be
  */
 
-static int ide_setup_pci_controller(struct pci_dev *dev,
+static int ide_setup_pci_controller(struct pci_dev *dev, int bars,
 				    const struct ide_port_info *d, int noisy)
 {
 	int ret;
@@ -420,7 +411,7 @@ static int ide_setup_pci_controller(struct pci_dev *dev,
 	if (noisy)
 		ide_setup_pci_noise(dev, d);
 
-	ret = ide_pci_enable(dev, d);
+	ret = ide_pci_enable(dev, bars, d);
 	if (ret < 0)
 		goto out;
 
@@ -428,16 +419,20 @@ static int ide_setup_pci_controller(struct pci_dev *dev,
 	if (ret < 0) {
 		printk(KERN_ERR "%s %s: error accessing PCI regs\n",
 			d->name, pci_name(dev));
-		goto out;
+		goto out_free_bars;
 	}
 	if (!(pcicmd & PCI_COMMAND_IO)) {	/* is device disabled? */
 		ret = ide_pci_configure(dev, d);
 		if (ret < 0)
-			goto out;
+			goto out_free_bars;
 		printk(KERN_INFO "%s %s: device enabled (Linux)\n",
 			d->name, pci_name(dev));
 	}
 
+	goto out;
+
+out_free_bars:
+	pci_release_selected_regions(dev, bars);
 out:
 	return ret;
 }
@@ -540,13 +535,28 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 {
 	struct pci_dev *pdev[] = { dev1, dev2 };
 	struct ide_host *host;
-	int ret, i, n_ports = dev2 ? 4 : 2;
+	int ret, i, n_ports = dev2 ? 4 : 2, bars;
 	struct ide_hw hw[4], *hws[] = { NULL, NULL, NULL, NULL };
 
+	if (d->host_flags & IDE_HFLAG_SINGLE)
+		bars = (1 << 2) - 1;
+	else
+		bars = (1 << 4) - 1;
+
+	if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) {
+		if (d->host_flags & IDE_HFLAG_CS5520)
+			bars |= (1 << 2);
+		else
+			bars |= (1 << 4);
+	}
+
 	for (i = 0; i < n_ports / 2; i++) {
-		ret = ide_setup_pci_controller(pdev[i], d, !i);
-		if (ret < 0)
+		ret = ide_setup_pci_controller(pdev[i], bars, d, !i);
+		if (ret < 0) {
+			if (i == 1)
+				pci_release_selected_regions(pdev[0], bars);
 			goto out;
+		}
 
 		ide_pci_setup_ports(pdev[i], d, &hw[i*2], &hws[i*2]);
 	}
@@ -554,7 +564,7 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 	host = ide_host_alloc(d, hws, n_ports);
 	if (host == NULL) {
 		ret = -ENOMEM;
-		goto out;
+		goto out_free_bars;
 	}
 
 	host->dev[0] = &dev1->dev;
@@ -576,7 +586,7 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 		 * do_ide_setup_pci_device() on the first device!
 		 */
 		if (ret < 0)
-			goto out;
+			goto out_free_bars;
 
 		/* fixup IRQ */
 		if (ide_pci_is_in_compatibility_mode(pdev[i])) {
@@ -589,6 +599,13 @@ int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2,
 	ret = ide_host_register(host, d, hws);
 	if (ret)
 		ide_host_free(host);
+	else
+		goto out;
+
+out_free_bars:
+	i = n_ports / 2;
+	while (i--)
+		pci_release_selected_regions(pdev[i], bars);
 out:
 	return ret;
 }
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 5dc7ea4b6bc4..b2ccce5fb071 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -913,22 +913,29 @@ static __cpuidle int intel_idle(struct cpuidle_device *dev,
 	struct cpuidle_state *state = &drv->states[index];
 	unsigned long eax = flg2MWAIT(state->flags);
 	unsigned int cstate;
-
-	cstate = (((eax) >> MWAIT_SUBSTATE_SIZE) & MWAIT_CSTATE_MASK) + 1;
+	bool uninitialized_var(tick);
+	int cpu = smp_processor_id();
 
 	/*
-	 * NB: if CPUIDLE_FLAG_TLB_FLUSHED is set, this idle transition
-	 * will probably flush the TLB.  It's not guaranteed to flush
-	 * the TLB, though, so it's not clear that we can do anything
-	 * useful with this knowledge.
+	 * leave_mm() to avoid costly and often unnecessary wakeups
+	 * for flushing the user TLB's associated with the active mm.
 	 */
-
-	if (!(lapic_timer_reliable_states & (1 << (cstate))))
-		tick_broadcast_enter();
+	if (state->flags & CPUIDLE_FLAG_TLB_FLUSHED)
+		leave_mm(cpu);
+
+	if (!static_cpu_has(X86_FEATURE_ARAT)) {
+		cstate = (((eax) >> MWAIT_SUBSTATE_SIZE) &
+				MWAIT_CSTATE_MASK) + 1;
+		tick = false;
+		if (!(lapic_timer_reliable_states & (1 << (cstate)))) {
+			tick = true;
+			tick_broadcast_enter();
+		}
+	}
 
 	mwait_idle_with_hints(eax, ecx);
 
-	if (!(lapic_timer_reliable_states & (1 << (cstate))))
+	if (!static_cpu_has(X86_FEATURE_ARAT) && tick)
 		tick_broadcast_exit();
 
 	return index;
@@ -1060,7 +1067,7 @@ static const struct idle_cpu idle_cpu_dnv = {
 };
 
 #define ICPU(model, cpu) \
-	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu }
+	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&cpu }
 
 static const struct x86_cpu_id intel_idle_ids[] __initconst = {
 	ICPU(INTEL_FAM6_NEHALEM_EP,		idle_cpu_nehalem),
@@ -1124,6 +1131,11 @@ static int __init intel_idle_probe(void)
 		return -ENODEV;
 	}
 
+	if (!boot_cpu_has(X86_FEATURE_MWAIT)) {
+		pr_debug("Please enable MWAIT in BIOS SETUP\n");
+		return -ENODEV;
+	}
+
 	if (boot_cpu_data.cpuid_level < CPUID_MWAIT_LEAF)
 		return -ENODEV;
 
diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
index 93c769cd99bf..b16b2e9ddc40 100644
--- a/drivers/iio/Makefile
+++ b/drivers/iio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the industrial I/O core.
 #
diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index 15de262015df..c6d9517d7611 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -148,6 +148,17 @@ config HID_SENSOR_ACCEL_3D
 	  To compile this driver as a module, choose M here: the
 	  module will be called hid-sensor-accel-3d.
 
+config IIO_CROS_EC_ACCEL_LEGACY
+	tristate "ChromeOS EC Legacy Accelerometer Sensor"
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	select CROS_EC_LPC_REGISTER_DEVICE
+	help
+	  Say yes here to get support for accelerometers on Chromebook using
+	  legacy EC firmware.
+	  Sensor data is retrieved through IO memory.
+	  Newer devices should use IIO_CROS_EC_SENSORS.
+
 config IIO_ST_ACCEL_3AXIS
 	tristate "STMicroelectronics accelerometers 3-Axis Driver"
 	depends on (I2C || SPI_MASTER) && SYSFS
@@ -219,8 +230,8 @@ config KXCJK1013
 	select IIO_TRIGGERED_BUFFER
 	help
 	  Say Y here if you want to build a driver for the Kionix KXCJK-1013
-	  triaxial acceleration sensor. This driver also supports KXCJ9-1008
-	  and KXTJ2-1009.
+	  triaxial acceleration sensor. This driver also supports KXCJ9-1008,
+	  KXTJ2-1009 and KXTF9.
 
 	  To compile this driver as a module, choose M here: the module will
 	  be called kxcjk-1013.
diff --git a/drivers/iio/accel/Makefile b/drivers/iio/accel/Makefile
index 31fba1974e95..368aedb6377a 100644
--- a/drivers/iio/accel/Makefile
+++ b/drivers/iio/accel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O accelerometer drivers
 #
@@ -43,6 +44,8 @@ obj-$(CONFIG_SCA3000)		+= sca3000.o
 obj-$(CONFIG_STK8312)		+= stk8312.o
 obj-$(CONFIG_STK8BA50)		+= stk8ba50.o
 
+obj-$(CONFIG_IIO_CROS_EC_ACCEL_LEGACY) += cros_ec_accel_legacy.o
+
 obj-$(CONFIG_IIO_SSP_SENSORS_COMMONS) += ssp_accel_sensor.o
 
 obj-$(CONFIG_IIO_ST_ACCEL_3AXIS) += st_accel.o
diff --git a/drivers/iio/accel/adxl345_core.c b/drivers/iio/accel/adxl345_core.c
index 9ccb5828db98..7251d0e63d74 100644
--- a/drivers/iio/accel/adxl345_core.c
+++ b/drivers/iio/accel/adxl345_core.c
@@ -95,7 +95,6 @@ static int adxl345_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info adxl345_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= adxl345_read_raw,
 };
 
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 3dec972ca672..cb9765a3de60 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -536,7 +536,6 @@ static const struct iio_info bma180_info = {
 	.attrs			= &bma180_attrs_group,
 	.read_raw		= bma180_read_raw,
 	.write_raw		= bma180_write_raw,
-	.driver_module		= THIS_MODULE,
 };
 
 static const char * const bma180_power_modes[] = { "low_noise", "low_power" };
@@ -700,7 +699,6 @@ static int bma180_trig_try_reen(struct iio_trigger *trig)
 static const struct iio_trigger_ops bma180_trigger_ops = {
 	.set_trigger_state = bma180_data_rdy_trigger_set_state,
 	.try_reenable = bma180_trig_try_reen,
-	.owner = THIS_MODULE,
 };
 
 static int bma180_probe(struct i2c_client *client,
diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c
index 5099f295dd37..e25d91c017ed 100644
--- a/drivers/iio/accel/bma220_spi.c
+++ b/drivers/iio/accel/bma220_spi.c
@@ -186,7 +186,6 @@ static int bma220_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info bma220_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= bma220_read_raw,
 	.write_raw		= bma220_write_raw,
 	.attrs			= &bma220_attribute_group,
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 807299dd45eb..870f92ef61c2 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -1094,7 +1094,6 @@ static const struct iio_info bmc150_accel_info = {
 	.write_event_value	= bmc150_accel_write_event,
 	.write_event_config	= bmc150_accel_write_event_config,
 	.read_event_config	= bmc150_accel_read_event_config,
-	.driver_module		= THIS_MODULE,
 };
 
 static const struct iio_info bmc150_accel_info_fifo = {
@@ -1108,7 +1107,6 @@ static const struct iio_info bmc150_accel_info_fifo = {
 	.validate_trigger	= bmc150_accel_validate_trigger,
 	.hwfifo_set_watermark	= bmc150_accel_set_watermark,
 	.hwfifo_flush_to_buffer	= bmc150_accel_fifo_flush,
-	.driver_module		= THIS_MODULE,
 };
 
 static const unsigned long bmc150_accel_scan_masks[] = {
@@ -1200,7 +1198,6 @@ static int bmc150_accel_trigger_set_state(struct iio_trigger *trig,
 static const struct iio_trigger_ops bmc150_accel_trigger_ops = {
 	.set_trigger_state = bmc150_accel_trigger_set_state,
 	.try_reenable = bmc150_accel_trig_try_reen,
-	.owner = THIS_MODULE,
 };
 
 static int bmc150_accel_handle_roc_event(struct iio_dev *indio_dev)
diff --git a/drivers/iio/accel/bmc150-accel.h b/drivers/iio/accel/bmc150-accel.h
index 38a8b11f8c19..ae6118ae11b1 100644
--- a/drivers/iio/accel/bmc150-accel.h
+++ b/drivers/iio/accel/bmc150-accel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BMC150_ACCEL_H_
 #define _BMC150_ACCEL_H_
 
diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/drivers/iio/accel/cros_ec_accel_legacy.c
new file mode 100644
index 000000000000..063e89eff791
--- /dev/null
+++ b/drivers/iio/accel/cros_ec_accel_legacy.c
@@ -0,0 +1,423 @@
+/*
+ * Driver for older Chrome OS EC accelerometer
+ *
+ * Copyright 2017 Google, Inc
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * This driver uses the memory mapper cros-ec interface to communicate
+ * with the Chrome OS EC about accelerometer data.
+ * Accelerometer access is presented through iio sysfs.
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/kfifo_buf.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/kernel.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/platform_device.h>
+
+#define DRV_NAME	"cros-ec-accel-legacy"
+
+/*
+ * Sensor scale hard coded at 10 bits per g, computed as:
+ * g / (2^10 - 1) = 0.009586168; with g = 9.80665 m.s^-2
+ */
+#define ACCEL_LEGACY_NSCALE 9586168
+
+/* Indices for EC sensor values. */
+enum {
+	X,
+	Y,
+	Z,
+	MAX_AXIS,
+};
+
+/* State data for cros_ec_accel_legacy iio driver. */
+struct cros_ec_accel_legacy_state {
+	struct cros_ec_device *ec;
+
+	/*
+	 * Array holding data from a single capture. 2 bytes per channel
+	 * for the 3 channels plus the timestamp which is always last and
+	 * 8-bytes aligned.
+	 */
+	s16 capture_data[8];
+	s8 sign[MAX_AXIS];
+	u8 sensor_num;
+};
+
+static int ec_cmd_read_u8(struct cros_ec_device *ec, unsigned int offset,
+			  u8 *dest)
+{
+	return ec->cmd_readmem(ec, offset, 1, dest);
+}
+
+static int ec_cmd_read_u16(struct cros_ec_device *ec, unsigned int offset,
+			   u16 *dest)
+{
+	__le16 tmp;
+	int ret = ec->cmd_readmem(ec, offset, 2, &tmp);
+
+	*dest = le16_to_cpu(tmp);
+
+	return ret;
+}
+
+/**
+ * read_ec_until_not_busy() - Read from EC status byte until it reads not busy.
+ * @st: Pointer to state information for device.
+ *
+ * This function reads EC status until its busy bit gets cleared. It does not
+ * wait indefinitely and returns -EIO if the EC status is still busy after a
+ * few hundreds milliseconds.
+ *
+ * Return: 8-bit status if ok, -EIO on error
+ */
+static int read_ec_until_not_busy(struct cros_ec_accel_legacy_state *st)
+{
+	struct cros_ec_device *ec = st->ec;
+	u8 status;
+	int attempts = 0;
+
+	ec_cmd_read_u8(ec, EC_MEMMAP_ACC_STATUS, &status);
+	while (status & EC_MEMMAP_ACC_STATUS_BUSY_BIT) {
+		/* Give up after enough attempts, return error. */
+		if (attempts++ >= 50)
+			return -EIO;
+
+		/* Small delay every so often. */
+		if (attempts % 5 == 0)
+			msleep(25);
+
+		ec_cmd_read_u8(ec, EC_MEMMAP_ACC_STATUS, &status);
+	}
+
+	return status;
+}
+
+/**
+ * read_ec_accel_data_unsafe() - Read acceleration data from EC shared memory.
+ * @st:        Pointer to state information for device.
+ * @scan_mask: Bitmap of the sensor indices to scan.
+ * @data:      Location to store data.
+ *
+ * This is the unsafe function for reading the EC data. It does not guarantee
+ * that the EC will not modify the data as it is being read in.
+ */
+static void read_ec_accel_data_unsafe(struct cros_ec_accel_legacy_state *st,
+				      unsigned long scan_mask, s16 *data)
+{
+	int i = 0;
+	int num_enabled = bitmap_weight(&scan_mask, MAX_AXIS);
+
+	/* Read all sensors enabled in scan_mask. Each value is 2 bytes. */
+	while (num_enabled--) {
+		i = find_next_bit(&scan_mask, MAX_AXIS, i);
+		ec_cmd_read_u16(st->ec,
+				EC_MEMMAP_ACC_DATA +
+				sizeof(s16) *
+				(1 + i + st->sensor_num * MAX_AXIS),
+				data);
+		*data *= st->sign[i];
+		i++;
+		data++;
+	}
+}
+
+/**
+ * read_ec_accel_data() - Read acceleration data from EC shared memory.
+ * @st:        Pointer to state information for device.
+ * @scan_mask: Bitmap of the sensor indices to scan.
+ * @data:      Location to store data.
+ *
+ * This is the safe function for reading the EC data. It guarantees that
+ * the data sampled was not modified by the EC while being read.
+ *
+ * Return: 0 if ok, -ve on error
+ */
+static int read_ec_accel_data(struct cros_ec_accel_legacy_state *st,
+			      unsigned long scan_mask, s16 *data)
+{
+	u8 samp_id = 0xff;
+	u8 status = 0;
+	int ret;
+	int attempts = 0;
+
+	/*
+	 * Continually read all data from EC until the status byte after
+	 * all reads reflects that the EC is not busy and the sample id
+	 * matches the sample id from before all reads. This guarantees
+	 * that data read in was not modified by the EC while reading.
+	 */
+	while ((status & (EC_MEMMAP_ACC_STATUS_BUSY_BIT |
+			  EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK)) != samp_id) {
+		/* If we have tried to read too many times, return error. */
+		if (attempts++ >= 5)
+			return -EIO;
+
+		/* Read status byte until EC is not busy. */
+		ret = read_ec_until_not_busy(st);
+		if (ret < 0)
+			return ret;
+		status = ret;
+
+		/*
+		 * Store the current sample id so that we can compare to the
+		 * sample id after reading the data.
+		 */
+		samp_id = status & EC_MEMMAP_ACC_STATUS_SAMPLE_ID_MASK;
+
+		/* Read all EC data, format it, and store it into data. */
+		read_ec_accel_data_unsafe(st, scan_mask, data);
+
+		/* Read status byte. */
+		ec_cmd_read_u8(st->ec, EC_MEMMAP_ACC_STATUS, &status);
+	}
+
+	return 0;
+}
+
+static int cros_ec_accel_legacy_read(struct iio_dev *indio_dev,
+				     struct iio_chan_spec const *chan,
+				     int *val, int *val2, long mask)
+{
+	struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev);
+	s16 data = 0;
+	int ret = IIO_VAL_INT;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = read_ec_accel_data(st, (1 << chan->scan_index), &data);
+		if (ret)
+			return ret;
+		*val = data;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		*val2 = ACCEL_LEGACY_NSCALE;
+		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		/* Calibration not supported. */
+		*val = 0;
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int cros_ec_accel_legacy_write(struct iio_dev *indio_dev,
+				      struct iio_chan_spec const *chan,
+				      int val, int val2, long mask)
+{
+	/*
+	 * Do nothing but don't return an error code to allow calibration
+	 * script to work.
+	 */
+	if (mask == IIO_CHAN_INFO_CALIBBIAS)
+		return 0;
+
+	return -EINVAL;
+}
+
+static const struct iio_info cros_ec_accel_legacy_info = {
+	.read_raw = &cros_ec_accel_legacy_read,
+	.write_raw = &cros_ec_accel_legacy_write,
+};
+
+/**
+ * cros_ec_accel_legacy_capture() - The trigger handler function
+ * @irq: The interrupt number.
+ * @p:   Private data - always a pointer to the poll func.
+ *
+ * On a trigger event occurring, if the pollfunc is attached then this
+ * handler is called as a threaded interrupt (and hence may sleep). It
+ * is responsible for grabbing data from the device and pushing it into
+ * the associated buffer.
+ *
+ * Return: IRQ_HANDLED
+ */
+static irqreturn_t cros_ec_accel_legacy_capture(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev);
+
+	/* Clear capture data. */
+	memset(st->capture_data, 0, sizeof(st->capture_data));
+
+	/*
+	 * Read data based on which channels are enabled in scan mask. Note
+	 * that on a capture we are always reading the calibrated data.
+	 */
+	read_ec_accel_data(st, *indio_dev->active_scan_mask, st->capture_data);
+
+	iio_push_to_buffers_with_timestamp(indio_dev, (void *)st->capture_data,
+					   iio_get_time_ns(indio_dev));
+
+	/*
+	 * Tell the core we are done with this trigger and ready for the
+	 * next one.
+	 */
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static char *cros_ec_accel_legacy_loc_strings[] = {
+	[MOTIONSENSE_LOC_BASE] = "base",
+	[MOTIONSENSE_LOC_LID] = "lid",
+	[MOTIONSENSE_LOC_MAX] = "unknown",
+};
+
+static ssize_t cros_ec_accel_legacy_loc(struct iio_dev *indio_dev,
+					uintptr_t private,
+					const struct iio_chan_spec *chan,
+					char *buf)
+{
+	struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev);
+
+	return sprintf(buf, "%s\n",
+		       cros_ec_accel_legacy_loc_strings[st->sensor_num +
+							MOTIONSENSE_LOC_BASE]);
+}
+
+static ssize_t cros_ec_accel_legacy_id(struct iio_dev *indio_dev,
+				       uintptr_t private,
+				       const struct iio_chan_spec *chan,
+				       char *buf)
+{
+	struct cros_ec_accel_legacy_state *st = iio_priv(indio_dev);
+
+	return sprintf(buf, "%d\n", st->sensor_num);
+}
+
+static const struct iio_chan_spec_ext_info cros_ec_accel_legacy_ext_info[] = {
+	{
+		.name = "id",
+		.shared = IIO_SHARED_BY_ALL,
+		.read = cros_ec_accel_legacy_id,
+	},
+	{
+		.name = "location",
+		.shared = IIO_SHARED_BY_ALL,
+		.read = cros_ec_accel_legacy_loc,
+	},
+	{ }
+};
+
+#define CROS_EC_ACCEL_LEGACY_CHAN(_axis)				\
+	{								\
+		.type = IIO_ACCEL,					\
+		.channel2 = IIO_MOD_X + (_axis),			\
+		.modified = 1,					        \
+		.info_mask_separate =					\
+			BIT(IIO_CHAN_INFO_RAW) |			\
+			BIT(IIO_CHAN_INFO_SCALE) |			\
+			BIT(IIO_CHAN_INFO_CALIBBIAS),			\
+		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SCALE),	\
+		.ext_info = cros_ec_accel_legacy_ext_info,		\
+		.scan_type = {						\
+			.sign = 's',					\
+			.realbits = 16,					\
+			.storagebits = 16,				\
+		},							\
+	}								\
+
+static struct iio_chan_spec ec_accel_channels[] = {
+	CROS_EC_ACCEL_LEGACY_CHAN(X),
+	CROS_EC_ACCEL_LEGACY_CHAN(Y),
+	CROS_EC_ACCEL_LEGACY_CHAN(Z),
+	IIO_CHAN_SOFT_TIMESTAMP(MAX_AXIS)
+};
+
+static int cros_ec_accel_legacy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct cros_ec_dev *ec = dev_get_drvdata(dev->parent);
+	struct cros_ec_sensor_platform *sensor_platform = dev_get_platdata(dev);
+	struct iio_dev *indio_dev;
+	struct cros_ec_accel_legacy_state *state;
+	int ret, i;
+
+	if (!ec || !ec->ec_dev) {
+		dev_warn(&pdev->dev, "No EC device found.\n");
+		return -EINVAL;
+	}
+
+	if (!ec->ec_dev->cmd_readmem) {
+		dev_warn(&pdev->dev, "EC does not support direct reads.\n");
+		return -EINVAL;
+	}
+
+	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*state));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, indio_dev);
+	state = iio_priv(indio_dev);
+	state->ec = ec->ec_dev;
+	state->sensor_num = sensor_platform->sensor_num;
+
+	indio_dev->dev.parent = dev;
+	indio_dev->name = pdev->name;
+	indio_dev->channels = ec_accel_channels;
+	/*
+	 * Present the channel using HTML5 standard:
+	 * need to invert X and Y and invert some lid axis.
+	 */
+	for (i = X ; i < MAX_AXIS; i++) {
+		switch (i) {
+		case X:
+			ec_accel_channels[X].scan_index = Y;
+		case Y:
+			ec_accel_channels[Y].scan_index = X;
+		case Z:
+			ec_accel_channels[Z].scan_index = Z;
+		}
+		if (state->sensor_num == MOTIONSENSE_LOC_LID && i != Y)
+			state->sign[i] = -1;
+		else
+			state->sign[i] = 1;
+	}
+	indio_dev->num_channels = ARRAY_SIZE(ec_accel_channels);
+	indio_dev->dev.parent = &pdev->dev;
+	indio_dev->info = &cros_ec_accel_legacy_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL,
+					      cros_ec_accel_legacy_capture,
+					      NULL);
+	if (ret)
+		return ret;
+
+	return devm_iio_device_register(dev, indio_dev);
+}
+
+static struct platform_driver cros_ec_accel_platform_driver = {
+	.driver = {
+		.name	= DRV_NAME,
+	},
+	.probe		= cros_ec_accel_legacy_probe,
+};
+module_platform_driver(cros_ec_accel_platform_driver);
+
+MODULE_DESCRIPTION("ChromeOS EC legacy accelerometer driver");
+MODULE_AUTHOR("Gwendal Grignou <gwendal@chromium.org>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/iio/accel/da280.c b/drivers/iio/accel/da280.c
index ed8343aeac9c..6c214783241c 100644
--- a/drivers/iio/accel/da280.c
+++ b/drivers/iio/accel/da280.c
@@ -88,7 +88,6 @@ static int da280_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info da280_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= da280_read_raw,
 };
 
diff --git a/drivers/iio/accel/da311.c b/drivers/iio/accel/da311.c
index c0c1620d2a2f..aa64bca00955 100644
--- a/drivers/iio/accel/da311.c
+++ b/drivers/iio/accel/da311.c
@@ -212,7 +212,6 @@ static int da311_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info da311_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= da311_read_raw,
 };
 
diff --git a/drivers/iio/accel/dmard06.c b/drivers/iio/accel/dmard06.c
index 656ca8e1927f..d87e2c751475 100644
--- a/drivers/iio/accel/dmard06.c
+++ b/drivers/iio/accel/dmard06.c
@@ -124,7 +124,6 @@ static int dmard06_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info dmard06_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= dmard06_read_raw,
 };
 
diff --git a/drivers/iio/accel/dmard09.c b/drivers/iio/accel/dmard09.c
index d3a28f96565c..16a7e74f5e9a 100644
--- a/drivers/iio/accel/dmard09.c
+++ b/drivers/iio/accel/dmard09.c
@@ -93,7 +93,6 @@ static int dmard09_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info dmard09_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= dmard09_read_raw,
 };
 
diff --git a/drivers/iio/accel/dmard10.c b/drivers/iio/accel/dmard10.c
index b8736cc75656..9518ea00167e 100644
--- a/drivers/iio/accel/dmard10.c
+++ b/drivers/iio/accel/dmard10.c
@@ -170,7 +170,6 @@ static int dmard10_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info dmard10_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= dmard10_read_raw,
 };
 
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index 2238a26aba63..c066a3bdbff7 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -225,7 +225,6 @@ static int accel_3d_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info accel_3d_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &accel_3d_read_raw,
 	.write_raw = &accel_3d_write_raw,
 };
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 3f968c46e667..af53a1084ee5 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -34,6 +34,13 @@
 #define KXCJK1013_DRV_NAME "kxcjk1013"
 #define KXCJK1013_IRQ_NAME "kxcjk1013_event"
 
+#define KXTF9_REG_HP_XOUT_L		0x00
+#define KXTF9_REG_HP_XOUT_H		0x01
+#define KXTF9_REG_HP_YOUT_L		0x02
+#define KXTF9_REG_HP_YOUT_H		0x03
+#define KXTF9_REG_HP_ZOUT_L		0x04
+#define KXTF9_REG_HP_ZOUT_H		0x05
+
 #define KXCJK1013_REG_XOUT_L		0x06
 /*
  * From low byte X axis register, all the other addresses of Y and Z can be
@@ -48,17 +55,33 @@
 
 #define KXCJK1013_REG_DCST_RESP		0x0C
 #define KXCJK1013_REG_WHO_AM_I		0x0F
-#define KXCJK1013_REG_INT_SRC1		0x16
+#define KXTF9_REG_TILT_POS_CUR		0x10
+#define KXTF9_REG_TILT_POS_PREV		0x11
+#define KXTF9_REG_INT_SRC1		0x15
+#define KXCJK1013_REG_INT_SRC1		0x16	/* compatible, but called INT_SRC2 in KXTF9 ds */
 #define KXCJK1013_REG_INT_SRC2		0x17
 #define KXCJK1013_REG_STATUS_REG	0x18
 #define KXCJK1013_REG_INT_REL		0x1A
 #define KXCJK1013_REG_CTRL1		0x1B
-#define KXCJK1013_REG_CTRL2		0x1D
+#define KXTF9_REG_CTRL2			0x1C
+#define KXCJK1013_REG_CTRL2		0x1D	/* mostly compatible, CTRL_REG3 in KTXF9 ds */
 #define KXCJK1013_REG_INT_CTRL1		0x1E
 #define KXCJK1013_REG_INT_CTRL2		0x1F
+#define KXTF9_REG_INT_CTRL3		0x20
 #define KXCJK1013_REG_DATA_CTRL		0x21
+#define KXTF9_REG_TILT_TIMER		0x28
 #define KXCJK1013_REG_WAKE_TIMER	0x29
+#define KXTF9_REG_TDT_TIMER		0x2B
+#define KXTF9_REG_TDT_THRESH_H		0x2C
+#define KXTF9_REG_TDT_THRESH_L		0x2D
+#define KXTF9_REG_TDT_TAP_TIMER		0x2E
+#define KXTF9_REG_TDT_TOTAL_TIMER	0x2F
+#define KXTF9_REG_TDT_LATENCY_TIMER	0x30
+#define KXTF9_REG_TDT_WINDOW_TIMER	0x31
 #define KXCJK1013_REG_SELF_TEST		0x3A
+#define KXTF9_REG_WAKE_THRESH		0x5A
+#define KXTF9_REG_TILT_ANGLE		0x5C
+#define KXTF9_REG_HYST_SET		0x5F
 #define KXCJK1013_REG_WAKE_THRES	0x6A
 
 #define KXCJK1013_REG_CTRL1_BIT_PC1	BIT(7)
@@ -67,14 +90,33 @@
 #define KXCJK1013_REG_CTRL1_BIT_GSEL1	BIT(4)
 #define KXCJK1013_REG_CTRL1_BIT_GSEL0	BIT(3)
 #define KXCJK1013_REG_CTRL1_BIT_WUFE	BIT(1)
-#define KXCJK1013_REG_INT_REG1_BIT_IEA	BIT(4)
-#define KXCJK1013_REG_INT_REG1_BIT_IEN	BIT(5)
+
+#define KXCJK1013_REG_INT_CTRL1_BIT_IEU	BIT(2)	/* KXTF9 */
+#define KXCJK1013_REG_INT_CTRL1_BIT_IEL	BIT(3)
+#define KXCJK1013_REG_INT_CTRL1_BIT_IEA	BIT(4)
+#define KXCJK1013_REG_INT_CTRL1_BIT_IEN	BIT(5)
+
+#define KXTF9_REG_TILT_BIT_LEFT_EDGE	BIT(5)
+#define KXTF9_REG_TILT_BIT_RIGHT_EDGE	BIT(4)
+#define KXTF9_REG_TILT_BIT_LOWER_EDGE	BIT(3)
+#define KXTF9_REG_TILT_BIT_UPPER_EDGE	BIT(2)
+#define KXTF9_REG_TILT_BIT_FACE_DOWN	BIT(1)
+#define KXTF9_REG_TILT_BIT_FACE_UP	BIT(0)
 
 #define KXCJK1013_DATA_MASK_12_BIT	0x0FFF
 #define KXCJK1013_MAX_STARTUP_TIME_US	100000
 
 #define KXCJK1013_SLEEP_DELAY_MS	2000
 
+#define KXCJK1013_REG_INT_SRC1_BIT_TPS	BIT(0)	/* KXTF9 */
+#define KXCJK1013_REG_INT_SRC1_BIT_WUFS	BIT(1)
+#define KXCJK1013_REG_INT_SRC1_MASK_TDTS	(BIT(2) | BIT(3))	/* KXTF9 */
+#define KXCJK1013_REG_INT_SRC1_TAP_NONE		0
+#define KXCJK1013_REG_INT_SRC1_TAP_SINGLE		BIT(2)
+#define KXCJK1013_REG_INT_SRC1_TAP_DOUBLE		BIT(3)
+#define KXCJK1013_REG_INT_SRC1_BIT_DRDY	BIT(4)
+
+/* KXCJK: INT_SOURCE2: motion detect, KXTF9: INT_SRC_REG1: tap detect */
 #define KXCJK1013_REG_INT_SRC2_BIT_ZP	BIT(0)
 #define KXCJK1013_REG_INT_SRC2_BIT_ZN	BIT(1)
 #define KXCJK1013_REG_INT_SRC2_BIT_YP	BIT(2)
@@ -88,6 +130,7 @@ enum kx_chipset {
 	KXCJK1013,
 	KXCJ91008,
 	KXTJ21009,
+	KXTF9,
 	KX_MAX_CHIPS /* this must be last */
 };
 
@@ -128,15 +171,42 @@ enum kxcjk1013_range {
 	KXCJK1013_RANGE_8G,
 };
 
-static const struct {
+struct kx_odr_map {
 	int val;
 	int val2;
 	int odr_bits;
-} samp_freq_table[] = { {0, 781000, 0x08}, {1, 563000, 0x09},
-			{3, 125000, 0x0A}, {6, 250000, 0x0B}, {12, 500000, 0},
-			{25, 0, 0x01}, {50, 0, 0x02}, {100, 0, 0x03},
-			{200, 0, 0x04}, {400, 0, 0x05}, {800, 0, 0x06},
-			{1600, 0, 0x07} };
+	int wuf_bits;
+};
+
+static const struct kx_odr_map samp_freq_table[] = {
+	{ 0, 781000, 0x08, 0x00 },
+	{ 1, 563000, 0x09, 0x01 },
+	{ 3, 125000, 0x0A, 0x02 },
+	{ 6, 250000, 0x0B, 0x03 },
+	{ 12, 500000, 0x00, 0x04 },
+	{ 25, 0, 0x01, 0x05 },
+	{ 50, 0, 0x02, 0x06 },
+	{ 100, 0, 0x03, 0x06 },
+	{ 200, 0, 0x04, 0x06 },
+	{ 400, 0, 0x05, 0x06 },
+	{ 800, 0, 0x06, 0x06 },
+	{ 1600, 0, 0x07, 0x06 },
+};
+
+static const char *const kxcjk1013_samp_freq_avail =
+	"0.781000 1.563000 3.125000 6.250000 12.500000 25 50 100 200 400 800 1600";
+
+static const struct kx_odr_map kxtf9_samp_freq_table[] = {
+	{ 25, 0, 0x01, 0x00 },
+	{ 50, 0, 0x02, 0x01 },
+	{ 100, 0, 0x03, 0x01 },
+	{ 200, 0, 0x04, 0x01 },
+	{ 400, 0, 0x05, 0x01 },
+	{ 800, 0, 0x06, 0x01 },
+};
+
+static const char *const kxtf9_samp_freq_avail =
+	"25 50 100 200 400 800";
 
 /* Refer to section 4 of the specification */
 static const struct {
@@ -188,6 +258,15 @@ static const struct {
 		{0x06, 3000},
 		{0x07, 2000},
 	},
+	/* KXTF9 */
+	{
+		{0x01, 81000},
+		{0x02, 41000},
+		{0x03, 21000},
+		{0x04, 11000},
+		{0x05, 5100},
+		{0x06, 2700},
+	},
 };
 
 static const struct {
@@ -198,23 +277,6 @@ static const struct {
 			      {19163, 1, 0},
 			      {38326, 0, 1} };
 
-static const struct {
-	int val;
-	int val2;
-	int odr_bits;
-} wake_odr_data_rate_table[] = { {0, 781000, 0x00},
-				 {1, 563000, 0x01},
-				 {3, 125000, 0x02},
-				 {6, 250000, 0x03},
-				 {12, 500000, 0x04},
-				 {25, 0, 0x05},
-				 {50, 0, 0x06},
-				 {100, 0, 0x06},
-				 {200, 0, 0x06},
-				 {400, 0, 0x06},
-				 {800, 0, 0x06},
-				 {1600, 0, 0x06} };
-
 static int kxcjk1013_set_mode(struct kxcjk1013_data *data,
 			      enum kxcjk1013_mode mode)
 {
@@ -341,9 +403,9 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
 	}
 
 	if (data->active_high_intr)
-		ret |= KXCJK1013_REG_INT_REG1_BIT_IEA;
+		ret |= KXCJK1013_REG_INT_CTRL1_BIT_IEA;
 	else
-		ret &= ~KXCJK1013_REG_INT_REG1_BIT_IEA;
+		ret &= ~KXCJK1013_REG_INT_CTRL1_BIT_IEA;
 
 	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_INT_CTRL1,
 					ret);
@@ -401,7 +463,7 @@ static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on)
 
 static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data)
 {
-	int ret;
+	int waketh_reg, ret;
 
 	ret = i2c_smbus_write_byte_data(data->client,
 					KXCJK1013_REG_WAKE_TIMER,
@@ -412,8 +474,9 @@ static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data)
 		return ret;
 	}
 
-	ret = i2c_smbus_write_byte_data(data->client,
-					KXCJK1013_REG_WAKE_THRES,
+	waketh_reg = data->chipset == KXTF9 ?
+		KXTF9_REG_WAKE_THRESH : KXCJK1013_REG_WAKE_THRES;
+	ret = i2c_smbus_write_byte_data(data->client, waketh_reg,
 					data->wake_thres);
 	if (ret < 0) {
 		dev_err(&data->client->dev, "Error writing reg_wake_thres\n");
@@ -449,9 +512,9 @@ static int kxcjk1013_setup_any_motion_interrupt(struct kxcjk1013_data *data,
 	}
 
 	if (status)
-		ret |= KXCJK1013_REG_INT_REG1_BIT_IEN;
+		ret |= KXCJK1013_REG_INT_CTRL1_BIT_IEN;
 	else
-		ret &= ~KXCJK1013_REG_INT_REG1_BIT_IEN;
+		ret &= ~KXCJK1013_REG_INT_CTRL1_BIT_IEN;
 
 	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_INT_CTRL1,
 					ret);
@@ -509,9 +572,9 @@ static int kxcjk1013_setup_new_data_interrupt(struct kxcjk1013_data *data,
 	}
 
 	if (status)
-		ret |= KXCJK1013_REG_INT_REG1_BIT_IEN;
+		ret |= KXCJK1013_REG_INT_CTRL1_BIT_IEN;
 	else
-		ret &= ~KXCJK1013_REG_INT_REG1_BIT_IEN;
+		ret &= ~KXCJK1013_REG_INT_CTRL1_BIT_IEN;
 
 	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_INT_CTRL1,
 					ret);
@@ -547,28 +610,30 @@ static int kxcjk1013_setup_new_data_interrupt(struct kxcjk1013_data *data,
 	return 0;
 }
 
-static int kxcjk1013_convert_freq_to_bit(int val, int val2)
+static const struct kx_odr_map *kxcjk1013_find_odr_value(
+	const struct kx_odr_map *map, size_t map_size, int val, int val2)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(samp_freq_table); ++i) {
-		if (samp_freq_table[i].val == val &&
-			samp_freq_table[i].val2 == val2) {
-			return samp_freq_table[i].odr_bits;
-		}
+	for (i = 0; i < map_size; ++i) {
+		if (map[i].val == val && map[i].val2 == val2)
+			return &map[i];
 	}
 
-	return -EINVAL;
+	return ERR_PTR(-EINVAL);
 }
 
-static int kxcjk1013_convert_wake_odr_to_bit(int val, int val2)
+static int kxcjk1013_convert_odr_value(const struct kx_odr_map *map,
+				       size_t map_size, int odr_bits,
+				       int *val, int *val2)
 {
 	int i;
 
-	for (i = 0; i < ARRAY_SIZE(wake_odr_data_rate_table); ++i) {
-		if (wake_odr_data_rate_table[i].val == val &&
-			wake_odr_data_rate_table[i].val2 == val2) {
-			return wake_odr_data_rate_table[i].odr_bits;
+	for (i = 0; i < map_size; ++i) {
+		if (map[i].odr_bits == odr_bits) {
+			*val = map[i].val;
+			*val2 = map[i].val2;
+			return IIO_VAL_INT_PLUS_MICRO;
 		}
 	}
 
@@ -578,16 +643,24 @@ static int kxcjk1013_convert_wake_odr_to_bit(int val, int val2)
 static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
 {
 	int ret;
-	int odr_bits;
 	enum kxcjk1013_mode store_mode;
+	const struct kx_odr_map *odr_setting;
 
 	ret = kxcjk1013_get_mode(data, &store_mode);
 	if (ret < 0)
 		return ret;
 
-	odr_bits = kxcjk1013_convert_freq_to_bit(val, val2);
-	if (odr_bits < 0)
-		return odr_bits;
+	if (data->chipset == KXTF9)
+		odr_setting = kxcjk1013_find_odr_value(kxtf9_samp_freq_table,
+						       ARRAY_SIZE(kxtf9_samp_freq_table),
+						       val, val2);
+	else
+		odr_setting = kxcjk1013_find_odr_value(samp_freq_table,
+						       ARRAY_SIZE(samp_freq_table),
+						       val, val2);
+
+	if (IS_ERR(odr_setting))
+		return PTR_ERR(odr_setting);
 
 	/* To change ODR, the chip must be set to STANDBY as per spec */
 	ret = kxcjk1013_set_mode(data, STANDBY);
@@ -595,20 +668,16 @@ static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
 		return ret;
 
 	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_DATA_CTRL,
-					odr_bits);
+					odr_setting->odr_bits);
 	if (ret < 0) {
 		dev_err(&data->client->dev, "Error writing data_ctrl\n");
 		return ret;
 	}
 
-	data->odr_bits = odr_bits;
-
-	odr_bits = kxcjk1013_convert_wake_odr_to_bit(val, val2);
-	if (odr_bits < 0)
-		return odr_bits;
+	data->odr_bits = odr_setting->odr_bits;
 
 	ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_CTRL2,
-					odr_bits);
+					odr_setting->wuf_bits);
 	if (ret < 0) {
 		dev_err(&data->client->dev, "Error writing reg_ctrl2\n");
 		return ret;
@@ -625,17 +694,14 @@ static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
 
 static int kxcjk1013_get_odr(struct kxcjk1013_data *data, int *val, int *val2)
 {
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(samp_freq_table); ++i) {
-		if (samp_freq_table[i].odr_bits == data->odr_bits) {
-			*val = samp_freq_table[i].val;
-			*val2 = samp_freq_table[i].val2;
-			return IIO_VAL_INT_PLUS_MICRO;
-		}
-	}
-
-	return -EINVAL;
+	if (data->chipset == KXTF9)
+		return kxcjk1013_convert_odr_value(kxtf9_samp_freq_table,
+						   ARRAY_SIZE(kxtf9_samp_freq_table),
+						   data->odr_bits, val, val2);
+	else
+		return kxcjk1013_convert_odr_value(samp_freq_table,
+						   ARRAY_SIZE(samp_freq_table),
+						   data->odr_bits, val, val2);
 }
 
 static int kxcjk1013_get_acc_reg(struct kxcjk1013_data *data, int axis)
@@ -886,13 +952,29 @@ static int kxcjk1013_buffer_postdisable(struct iio_dev *indio_dev)
 	return kxcjk1013_set_power_state(data, false);
 }
 
-static IIO_CONST_ATTR_SAMP_FREQ_AVAIL(
-	"0.781000 1.563000 3.125000 6.250000 12.500000 25 50 100 200 400 800 1600");
+static ssize_t kxcjk1013_get_samp_freq_avail(struct device *dev,
+					     struct device_attribute *attr,
+					     char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+	const char *str;
+
+	if (data->chipset == KXTF9)
+		str = kxtf9_samp_freq_avail;
+	else
+		str = kxcjk1013_samp_freq_avail;
+
+	return sprintf(buf, "%s\n", str);
+}
+
+static IIO_DEVICE_ATTR(in_accel_sampling_frequency_available, S_IRUGO,
+		       kxcjk1013_get_samp_freq_avail, NULL, 0);
 
 static IIO_CONST_ATTR(in_accel_scale_available, "0.009582 0.019163 0.038326");
 
 static struct attribute *kxcjk1013_attributes[] = {
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	&iio_dev_attr_in_accel_sampling_frequency_available.dev_attr.attr,
 	&iio_const_attr_in_accel_scale_available.dev_attr.attr,
 	NULL,
 };
@@ -950,7 +1032,6 @@ static const struct iio_info kxcjk1013_info = {
 	.write_event_value	= kxcjk1013_write_event,
 	.write_event_config	= kxcjk1013_write_event_config,
 	.read_event_config	= kxcjk1013_read_event_config,
-	.driver_module		= THIS_MODULE,
 };
 
 static const unsigned long kxcjk1013_scan_masks[] = {0x7, 0};
@@ -1036,9 +1117,74 @@ static int kxcjk1013_data_rdy_trigger_set_state(struct iio_trigger *trig,
 static const struct iio_trigger_ops kxcjk1013_trigger_ops = {
 	.set_trigger_state = kxcjk1013_data_rdy_trigger_set_state,
 	.try_reenable = kxcjk1013_trig_try_reen,
-	.owner = THIS_MODULE,
 };
 
+static void kxcjk1013_report_motion_event(struct iio_dev *indio_dev)
+{
+	struct kxcjk1013_data *data = iio_priv(indio_dev);
+
+	int ret = i2c_smbus_read_byte_data(data->client,
+					   KXCJK1013_REG_INT_SRC2);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Error reading reg_int_src2\n");
+		return;
+	}
+
+	if (ret & KXCJK1013_REG_INT_SRC2_BIT_XN)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+						  0,
+						  IIO_MOD_X,
+						  IIO_EV_TYPE_THRESH,
+						  IIO_EV_DIR_FALLING),
+			       data->timestamp);
+
+	if (ret & KXCJK1013_REG_INT_SRC2_BIT_XP)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+						  0,
+						  IIO_MOD_X,
+						  IIO_EV_TYPE_THRESH,
+						  IIO_EV_DIR_RISING),
+			       data->timestamp);
+
+	if (ret & KXCJK1013_REG_INT_SRC2_BIT_YN)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+						  0,
+						  IIO_MOD_Y,
+						  IIO_EV_TYPE_THRESH,
+						  IIO_EV_DIR_FALLING),
+			       data->timestamp);
+
+	if (ret & KXCJK1013_REG_INT_SRC2_BIT_YP)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+						  0,
+						  IIO_MOD_Y,
+						  IIO_EV_TYPE_THRESH,
+						  IIO_EV_DIR_RISING),
+			       data->timestamp);
+
+	if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZN)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+						  0,
+						  IIO_MOD_Z,
+						  IIO_EV_TYPE_THRESH,
+						  IIO_EV_DIR_FALLING),
+			       data->timestamp);
+
+	if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZP)
+		iio_push_event(indio_dev,
+			       IIO_MOD_EVENT_CODE(IIO_ACCEL,
+						  0,
+						  IIO_MOD_Z,
+						  IIO_EV_TYPE_THRESH,
+						  IIO_EV_DIR_RISING),
+			       data->timestamp);
+}
+
 static irqreturn_t kxcjk1013_event_handler(int irq, void *private)
 {
 	struct iio_dev *indio_dev = private;
@@ -1051,66 +1197,17 @@ static irqreturn_t kxcjk1013_event_handler(int irq, void *private)
 		goto ack_intr;
 	}
 
-	if (ret & 0x02) {
-		ret = i2c_smbus_read_byte_data(data->client,
-					       KXCJK1013_REG_INT_SRC2);
-		if (ret < 0) {
-			dev_err(&data->client->dev,
-				"Error reading reg_int_src2\n");
-			goto ack_intr;
-		}
-
-		if (ret & KXCJK1013_REG_INT_SRC2_BIT_XN)
-			iio_push_event(indio_dev,
-				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-				       0,
-				       IIO_MOD_X,
-				       IIO_EV_TYPE_THRESH,
-				       IIO_EV_DIR_FALLING),
-				       data->timestamp);
-		if (ret & KXCJK1013_REG_INT_SRC2_BIT_XP)
-			iio_push_event(indio_dev,
-				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-				       0,
-				       IIO_MOD_X,
-				       IIO_EV_TYPE_THRESH,
-				       IIO_EV_DIR_RISING),
-				       data->timestamp);
-
-
-		if (ret & KXCJK1013_REG_INT_SRC2_BIT_YN)
-			iio_push_event(indio_dev,
-				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-				       0,
-				       IIO_MOD_Y,
-				       IIO_EV_TYPE_THRESH,
-				       IIO_EV_DIR_FALLING),
-				       data->timestamp);
-		if (ret & KXCJK1013_REG_INT_SRC2_BIT_YP)
-			iio_push_event(indio_dev,
-				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-				       0,
-				       IIO_MOD_Y,
-				       IIO_EV_TYPE_THRESH,
-				       IIO_EV_DIR_RISING),
-				       data->timestamp);
-
-		if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZN)
-			iio_push_event(indio_dev,
-				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
-				       0,
-				       IIO_MOD_Z,
-				       IIO_EV_TYPE_THRESH,
-				       IIO_EV_DIR_FALLING),
-				       data->timestamp);
-		if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZP)
+	if (ret & KXCJK1013_REG_INT_SRC1_BIT_WUFS) {
+		if (data->chipset == KXTF9)
 			iio_push_event(indio_dev,
 				       IIO_MOD_EVENT_CODE(IIO_ACCEL,
 				       0,
-				       IIO_MOD_Z,
+				       IIO_MOD_X_AND_Y_AND_Z,
 				       IIO_EV_TYPE_THRESH,
 				       IIO_EV_DIR_RISING),
 				       data->timestamp);
+		else
+			kxcjk1013_report_motion_event(indio_dev);
 	}
 
 ack_intr:
@@ -1403,6 +1500,7 @@ static const struct i2c_device_id kxcjk1013_id[] = {
 	{"kxcjk1013", KXCJK1013},
 	{"kxcj91008", KXCJ91008},
 	{"kxtj21009", KXTJ21009},
+	{"kxtf9",     KXTF9},
 	{"SMO8500",   KXCJ91008},
 	{}
 };
diff --git a/drivers/iio/accel/kxsd9-i2c.c b/drivers/iio/accel/kxsd9-i2c.c
index 95e20855d2ef..98fbb628d5bd 100644
--- a/drivers/iio/accel/kxsd9-i2c.c
+++ b/drivers/iio/accel/kxsd9-i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
index 9af60ac70738..0c0df4fce420 100644
--- a/drivers/iio/accel/kxsd9.c
+++ b/drivers/iio/accel/kxsd9.c
@@ -390,7 +390,6 @@ static const struct iio_info kxsd9_info = {
 	.read_raw = &kxsd9_read_raw,
 	.write_raw = &kxsd9_write_raw,
 	.attrs = &kxsd9_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 /* Four channels apart from timestamp, scan mask = 0x0f */
diff --git a/drivers/iio/accel/kxsd9.h b/drivers/iio/accel/kxsd9.h
index 7e8a28168310..5e3ca212f5be 100644
--- a/drivers/iio/accel/kxsd9.h
+++ b/drivers/iio/accel/kxsd9.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/device.h>
 #include <linux/kernel.h>
 
diff --git a/drivers/iio/accel/mc3230.c b/drivers/iio/accel/mc3230.c
index 4ea2ff623a6d..8b11604eed63 100644
--- a/drivers/iio/accel/mc3230.c
+++ b/drivers/iio/accel/mc3230.c
@@ -107,7 +107,6 @@ static int mc3230_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info mc3230_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= mc3230_read_raw,
 };
 
diff --git a/drivers/iio/accel/mma7455_core.c b/drivers/iio/accel/mma7455_core.c
index 6551085bedd7..da0ceaac46b5 100644
--- a/drivers/iio/accel/mma7455_core.c
+++ b/drivers/iio/accel/mma7455_core.c
@@ -199,7 +199,6 @@ static const struct iio_info mma7455_info = {
 	.attrs = &mma7455_group,
 	.read_raw = mma7455_read_raw,
 	.write_raw = mma7455_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define MMA7455_CHANNEL(axis, idx) { \
diff --git a/drivers/iio/accel/mma7660.c b/drivers/iio/accel/mma7660.c
index 42fa57e41bdd..f1a13724efb3 100644
--- a/drivers/iio/accel/mma7660.c
+++ b/drivers/iio/accel/mma7660.c
@@ -168,7 +168,6 @@ static int mma7660_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info mma7660_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw		= mma7660_read_raw,
 	.attrs			= &mma7660_attribute_group,
 };
diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c
index eb6e3dc789b2..bfd4bc806fc2 100644
--- a/drivers/iio/accel/mma8452.c
+++ b/drivers/iio/accel/mma8452.c
@@ -59,7 +59,9 @@
 #define MMA8452_FF_MT_THS			0x17
 #define  MMA8452_FF_MT_THS_MASK			0x7f
 #define MMA8452_FF_MT_COUNT			0x18
+#define MMA8452_FF_MT_CHAN_SHIFT	3
 #define MMA8452_TRANSIENT_CFG			0x1d
+#define  MMA8452_TRANSIENT_CFG_CHAN(chan)	BIT(chan + 1)
 #define  MMA8452_TRANSIENT_CFG_HPF_BYP		BIT(0)
 #define  MMA8452_TRANSIENT_CFG_ELE		BIT(4)
 #define MMA8452_TRANSIENT_SRC			0x1e
@@ -69,6 +71,7 @@
 #define MMA8452_TRANSIENT_THS			0x1f
 #define  MMA8452_TRANSIENT_THS_MASK		GENMASK(6, 0)
 #define MMA8452_TRANSIENT_COUNT			0x20
+#define MMA8452_TRANSIENT_CHAN_SHIFT 1
 #define MMA8452_CTRL_REG1			0x2a
 #define  MMA8452_CTRL_ACTIVE			BIT(0)
 #define  MMA8452_CTRL_DR_MASK			GENMASK(5, 3)
@@ -107,6 +110,51 @@ struct mma8452_data {
 	const struct mma_chip_info *chip_info;
 };
 
+ /**
+  * struct mma8452_event_regs - chip specific data related to events
+  * @ev_cfg:			event config register address
+  * @ev_cfg_ele:			latch bit in event config register
+  * @ev_cfg_chan_shift:		number of the bit to enable events in X
+  *				direction; in event config register
+  * @ev_src:			event source register address
+  * @ev_ths:			event threshold register address
+  * @ev_ths_mask:		mask for the threshold value
+  * @ev_count:			event count (period) register address
+  *
+  * Since not all chips supported by the driver support comparing high pass
+  * filtered data for events (interrupts), different interrupt sources are
+  * used for different chips and the relevant registers are included here.
+  */
+struct mma8452_event_regs {
+		u8 ev_cfg;
+		u8 ev_cfg_ele;
+		u8 ev_cfg_chan_shift;
+		u8 ev_src;
+		u8 ev_ths;
+		u8 ev_ths_mask;
+		u8 ev_count;
+};
+
+static const struct mma8452_event_regs ev_regs_accel_falling = {
+		.ev_cfg = MMA8452_FF_MT_CFG,
+		.ev_cfg_ele = MMA8452_FF_MT_CFG_ELE,
+		.ev_cfg_chan_shift = MMA8452_FF_MT_CHAN_SHIFT,
+		.ev_src = MMA8452_FF_MT_SRC,
+		.ev_ths = MMA8452_FF_MT_THS,
+		.ev_ths_mask = MMA8452_FF_MT_THS_MASK,
+		.ev_count = MMA8452_FF_MT_COUNT
+};
+
+static const struct mma8452_event_regs ev_regs_accel_rising = {
+		.ev_cfg = MMA8452_TRANSIENT_CFG,
+		.ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
+		.ev_cfg_chan_shift = MMA8452_TRANSIENT_CHAN_SHIFT,
+		.ev_src = MMA8452_TRANSIENT_SRC,
+		.ev_ths = MMA8452_TRANSIENT_THS,
+		.ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
+		.ev_count = MMA8452_TRANSIENT_COUNT,
+};
+
 /**
  * struct mma_chip_info - chip specific data
  * @chip_id:			WHO_AM_I register's value
@@ -116,40 +164,16 @@ struct mma8452_data {
  * @mma_scales:			scale factors for converting register values
  *				to m/s^2; 3 modes: 2g, 4g, 8g; 2 integers
  *				per mode: m/s^2 and micro m/s^2
- * @ev_cfg:			event config register address
- * @ev_cfg_ele:			latch bit in event config register
- * @ev_cfg_chan_shift:		number of the bit to enable events in X
- *				direction; in event config register
- * @ev_src:			event source register address
- * @ev_src_xe:			bit in event source register that indicates
- *				an event in X direction
- * @ev_src_ye:			bit in event source register that indicates
- *				an event in Y direction
- * @ev_src_ze:			bit in event source register that indicates
- *				an event in Z direction
- * @ev_ths:			event threshold register address
- * @ev_ths_mask:		mask for the threshold value
- * @ev_count:			event count (period) register address
- *
- * Since not all chips supported by the driver support comparing high pass
- * filtered data for events (interrupts), different interrupt sources are
- * used for different chips and the relevant registers are included here.
+ * @all_events:			all events supported by this chip
+ * @enabled_events:		event flags enabled and handled by this driver
  */
 struct mma_chip_info {
 	u8 chip_id;
 	const struct iio_chan_spec *channels;
 	int num_channels;
 	const int mma_scales[3][2];
-	u8 ev_cfg;
-	u8 ev_cfg_ele;
-	u8 ev_cfg_chan_shift;
-	u8 ev_src;
-	u8 ev_src_xe;
-	u8 ev_src_ye;
-	u8 ev_src_ze;
-	u8 ev_ths;
-	u8 ev_ths_mask;
-	u8 ev_count;
+	int all_events;
+	int enabled_events;
 };
 
 enum {
@@ -394,11 +418,11 @@ static ssize_t mma8452_show_os_ratio_avail(struct device *dev,
 }
 
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(mma8452_show_samp_freq_avail);
-static IIO_DEVICE_ATTR(in_accel_scale_available, S_IRUGO,
+static IIO_DEVICE_ATTR(in_accel_scale_available, 0444,
 		       mma8452_show_scale_avail, NULL, 0);
 static IIO_DEVICE_ATTR(in_accel_filter_high_pass_3db_frequency_available,
-		       S_IRUGO, mma8452_show_hp_cutoff_avail, NULL, 0);
-static IIO_DEVICE_ATTR(in_accel_oversampling_ratio_available, S_IRUGO,
+		       0444, mma8452_show_hp_cutoff_avail, NULL, 0);
+static IIO_DEVICE_ATTR(in_accel_oversampling_ratio_available, 0444,
 		       mma8452_show_os_ratio_avail, NULL, 0);
 
 static int mma8452_get_samp_freq_index(struct mma8452_data *data,
@@ -602,9 +626,8 @@ static int mma8452_set_power_mode(struct mma8452_data *data, u8 mode)
 static int mma8452_freefall_mode_enabled(struct mma8452_data *data)
 {
 	int val;
-	const struct mma_chip_info *chip = data->chip_info;
 
-	val = i2c_smbus_read_byte_data(data->client, chip->ev_cfg);
+	val = i2c_smbus_read_byte_data(data->client, MMA8452_FF_MT_CFG);
 	if (val < 0)
 		return val;
 
@@ -614,29 +637,28 @@ static int mma8452_freefall_mode_enabled(struct mma8452_data *data)
 static int mma8452_set_freefall_mode(struct mma8452_data *data, bool state)
 {
 	int val;
-	const struct mma_chip_info *chip = data->chip_info;
 
 	if ((state && mma8452_freefall_mode_enabled(data)) ||
 	    (!state && !(mma8452_freefall_mode_enabled(data))))
 		return 0;
 
-	val = i2c_smbus_read_byte_data(data->client, chip->ev_cfg);
+	val = i2c_smbus_read_byte_data(data->client, MMA8452_FF_MT_CFG);
 	if (val < 0)
 		return val;
 
 	if (state) {
-		val |= BIT(idx_x + chip->ev_cfg_chan_shift);
-		val |= BIT(idx_y + chip->ev_cfg_chan_shift);
-		val |= BIT(idx_z + chip->ev_cfg_chan_shift);
+		val |= BIT(idx_x + MMA8452_FF_MT_CHAN_SHIFT);
+		val |= BIT(idx_y + MMA8452_FF_MT_CHAN_SHIFT);
+		val |= BIT(idx_z + MMA8452_FF_MT_CHAN_SHIFT);
 		val &= ~MMA8452_FF_MT_CFG_OAE;
 	} else {
-		val &= ~BIT(idx_x + chip->ev_cfg_chan_shift);
-		val &= ~BIT(idx_y + chip->ev_cfg_chan_shift);
-		val &= ~BIT(idx_z + chip->ev_cfg_chan_shift);
+		val &= ~BIT(idx_x + MMA8452_FF_MT_CHAN_SHIFT);
+		val &= ~BIT(idx_y + MMA8452_FF_MT_CHAN_SHIFT);
+		val &= ~BIT(idx_z + MMA8452_FF_MT_CHAN_SHIFT);
 		val |= MMA8452_FF_MT_CFG_OAE;
 	}
 
-	return mma8452_change_config(data, chip->ev_cfg, val);
+	return mma8452_change_config(data, MMA8452_FF_MT_CFG, val);
 }
 
 static int mma8452_set_hp_filter_frequency(struct mma8452_data *data,
@@ -740,7 +762,37 @@ static int mma8452_write_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
-static int mma8452_read_thresh(struct iio_dev *indio_dev,
+static int mma8452_get_event_regs(struct mma8452_data *data,
+		const struct iio_chan_spec *chan, enum iio_event_direction dir,
+		const struct mma8452_event_regs **ev_reg)
+{
+	if (!chan)
+		return -EINVAL;
+
+	switch (chan->type) {
+	case IIO_ACCEL:
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			if ((data->chip_info->all_events
+					& MMA8452_INT_TRANS) &&
+				(data->chip_info->enabled_events
+					& MMA8452_INT_TRANS))
+				*ev_reg = &ev_regs_accel_rising;
+			else
+				*ev_reg = &ev_regs_accel_falling;
+			return 0;
+		case IIO_EV_DIR_FALLING:
+			*ev_reg = &ev_regs_accel_falling;
+			return 0;
+		default:
+			return -EINVAL;
+		}
+	default:
+		return -EINVAL;
+	}
+}
+
+static int mma8452_read_event_value(struct iio_dev *indio_dev,
 			       const struct iio_chan_spec *chan,
 			       enum iio_event_type type,
 			       enum iio_event_direction dir,
@@ -749,21 +801,24 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
 {
 	struct mma8452_data *data = iio_priv(indio_dev);
 	int ret, us, power_mode;
+	const struct mma8452_event_regs *ev_regs;
+
+	ret = mma8452_get_event_regs(data, chan, dir, &ev_regs);
+	if (ret)
+		return ret;
 
 	switch (info) {
 	case IIO_EV_INFO_VALUE:
-		ret = i2c_smbus_read_byte_data(data->client,
-					       data->chip_info->ev_ths);
+		ret = i2c_smbus_read_byte_data(data->client, ev_regs->ev_ths);
 		if (ret < 0)
 			return ret;
 
-		*val = ret & data->chip_info->ev_ths_mask;
+		*val = ret & ev_regs->ev_ths_mask;
 
 		return IIO_VAL_INT;
 
 	case IIO_EV_INFO_PERIOD:
-		ret = i2c_smbus_read_byte_data(data->client,
-					       data->chip_info->ev_count);
+		ret = i2c_smbus_read_byte_data(data->client, ev_regs->ev_count);
 		if (ret < 0)
 			return ret;
 
@@ -800,7 +855,7 @@ static int mma8452_read_thresh(struct iio_dev *indio_dev,
 	}
 }
 
-static int mma8452_write_thresh(struct iio_dev *indio_dev,
+static int mma8452_write_event_value(struct iio_dev *indio_dev,
 				const struct iio_chan_spec *chan,
 				enum iio_event_type type,
 				enum iio_event_direction dir,
@@ -809,14 +864,18 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
 {
 	struct mma8452_data *data = iio_priv(indio_dev);
 	int ret, reg, steps;
+	const struct mma8452_event_regs *ev_regs;
+
+	ret = mma8452_get_event_regs(data, chan, dir, &ev_regs);
+	if (ret)
+		return ret;
 
 	switch (info) {
 	case IIO_EV_INFO_VALUE:
-		if (val < 0 || val > MMA8452_TRANSIENT_THS_MASK)
+		if (val < 0 || val > ev_regs->ev_ths_mask)
 			return -EINVAL;
 
-		return mma8452_change_config(data, data->chip_info->ev_ths,
-					     val);
+		return mma8452_change_config(data, ev_regs->ev_ths, val);
 
 	case IIO_EV_INFO_PERIOD:
 		ret = mma8452_get_power_mode(data);
@@ -830,8 +889,7 @@ static int mma8452_write_thresh(struct iio_dev *indio_dev,
 		if (steps < 0 || steps > 0xff)
 			return -EINVAL;
 
-		return mma8452_change_config(data, data->chip_info->ev_count,
-					     steps);
+		return mma8452_change_config(data, ev_regs->ev_count, steps);
 
 	case IIO_EV_INFO_HIGH_PASS_FILTER_3DB:
 		reg = i2c_smbus_read_byte_data(data->client,
@@ -861,23 +919,24 @@ static int mma8452_read_event_config(struct iio_dev *indio_dev,
 				     enum iio_event_direction dir)
 {
 	struct mma8452_data *data = iio_priv(indio_dev);
-	const struct mma_chip_info *chip = data->chip_info;
 	int ret;
+	const struct mma8452_event_regs *ev_regs;
+
+	ret = mma8452_get_event_regs(data, chan, dir, &ev_regs);
+	if (ret)
+		return ret;
 
 	switch (dir) {
 	case IIO_EV_DIR_FALLING:
 		return mma8452_freefall_mode_enabled(data);
 	case IIO_EV_DIR_RISING:
-		if (mma8452_freefall_mode_enabled(data))
-			return 0;
-
 		ret = i2c_smbus_read_byte_data(data->client,
-					       data->chip_info->ev_cfg);
+				ev_regs->ev_cfg);
 		if (ret < 0)
 			return ret;
 
 		return !!(ret & BIT(chan->scan_index +
-				    chip->ev_cfg_chan_shift));
+				ev_regs->ev_cfg_chan_shift));
 	default:
 		return -EINVAL;
 	}
@@ -890,8 +949,12 @@ static int mma8452_write_event_config(struct iio_dev *indio_dev,
 				      int state)
 {
 	struct mma8452_data *data = iio_priv(indio_dev);
-	const struct mma_chip_info *chip = data->chip_info;
 	int val, ret;
+	const struct mma8452_event_regs *ev_regs;
+
+	ret = mma8452_get_event_regs(data, chan, dir, &ev_regs);
+	if (ret)
+		return ret;
 
 	ret = mma8452_set_runtime_pm_state(data->client, state);
 	if (ret)
@@ -901,28 +964,30 @@ static int mma8452_write_event_config(struct iio_dev *indio_dev,
 	case IIO_EV_DIR_FALLING:
 		return mma8452_set_freefall_mode(data, state);
 	case IIO_EV_DIR_RISING:
-		val = i2c_smbus_read_byte_data(data->client, chip->ev_cfg);
+		val = i2c_smbus_read_byte_data(data->client, ev_regs->ev_cfg);
 		if (val < 0)
 			return val;
 
 		if (state) {
 			if (mma8452_freefall_mode_enabled(data)) {
-				val &= ~BIT(idx_x + chip->ev_cfg_chan_shift);
-				val &= ~BIT(idx_y + chip->ev_cfg_chan_shift);
-				val &= ~BIT(idx_z + chip->ev_cfg_chan_shift);
+				val &= ~BIT(idx_x + ev_regs->ev_cfg_chan_shift);
+				val &= ~BIT(idx_y + ev_regs->ev_cfg_chan_shift);
+				val &= ~BIT(idx_z + ev_regs->ev_cfg_chan_shift);
 				val |= MMA8452_FF_MT_CFG_OAE;
 			}
-			val |= BIT(chan->scan_index + chip->ev_cfg_chan_shift);
+			val |= BIT(chan->scan_index +
+					ev_regs->ev_cfg_chan_shift);
 		} else {
 			if (mma8452_freefall_mode_enabled(data))
 				return 0;
 
-			val &= ~BIT(chan->scan_index + chip->ev_cfg_chan_shift);
+			val &= ~BIT(chan->scan_index +
+					ev_regs->ev_cfg_chan_shift);
 		}
 
-		val |= chip->ev_cfg_ele;
+		val |= ev_regs->ev_cfg_ele;
 
-		return mma8452_change_config(data, chip->ev_cfg, val);
+		return mma8452_change_config(data, ev_regs->ev_cfg, val);
 	default:
 		return -EINVAL;
 	}
@@ -934,35 +999,25 @@ static void mma8452_transient_interrupt(struct iio_dev *indio_dev)
 	s64 ts = iio_get_time_ns(indio_dev);
 	int src;
 
-	src = i2c_smbus_read_byte_data(data->client, data->chip_info->ev_src);
+	src = i2c_smbus_read_byte_data(data->client, MMA8452_TRANSIENT_SRC);
 	if (src < 0)
 		return;
 
-	if (mma8452_freefall_mode_enabled(data)) {
-		iio_push_event(indio_dev,
-			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0,
-						  IIO_MOD_X_AND_Y_AND_Z,
-						  IIO_EV_TYPE_MAG,
-						  IIO_EV_DIR_FALLING),
-			       ts);
-		return;
-	}
-
-	if (src & data->chip_info->ev_src_xe)
+	if (src & MMA8452_TRANSIENT_SRC_XTRANSE)
 		iio_push_event(indio_dev,
 			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X,
 						  IIO_EV_TYPE_MAG,
 						  IIO_EV_DIR_RISING),
 			       ts);
 
-	if (src & data->chip_info->ev_src_ye)
+	if (src & MMA8452_TRANSIENT_SRC_YTRANSE)
 		iio_push_event(indio_dev,
 			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Y,
 						  IIO_EV_TYPE_MAG,
 						  IIO_EV_DIR_RISING),
 			       ts);
 
-	if (src & data->chip_info->ev_src_ze)
+	if (src & MMA8452_TRANSIENT_SRC_ZTRANSE)
 		iio_push_event(indio_dev,
 			       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Z,
 						  IIO_EV_TYPE_MAG,
@@ -974,7 +1029,6 @@ static irqreturn_t mma8452_interrupt(int irq, void *p)
 {
 	struct iio_dev *indio_dev = p;
 	struct mma8452_data *data = iio_priv(indio_dev);
-	const struct mma_chip_info *chip = data->chip_info;
 	int ret = IRQ_NONE;
 	int src;
 
@@ -982,15 +1036,29 @@ static irqreturn_t mma8452_interrupt(int irq, void *p)
 	if (src < 0)
 		return IRQ_NONE;
 
+	if (!(src & data->chip_info->enabled_events))
+		return IRQ_NONE;
+
 	if (src & MMA8452_INT_DRDY) {
 		iio_trigger_poll_chained(indio_dev->trig);
 		ret = IRQ_HANDLED;
 	}
 
-	if ((src & MMA8452_INT_TRANS &&
-	     chip->ev_src == MMA8452_TRANSIENT_SRC) ||
-	    (src & MMA8452_INT_FF_MT &&
-	     chip->ev_src == MMA8452_FF_MT_SRC)) {
+	if (src & MMA8452_INT_FF_MT) {
+		if (mma8452_freefall_mode_enabled(data)) {
+			s64 ts = iio_get_time_ns(indio_dev);
+
+			iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(IIO_ACCEL, 0,
+							  IIO_MOD_X_AND_Y_AND_Z,
+							  IIO_EV_TYPE_MAG,
+							  IIO_EV_DIR_FALLING),
+					ts);
+		}
+		ret = IRQ_HANDLED;
+	}
+
+	if (src & MMA8452_INT_TRANS) {
 		mma8452_transient_interrupt(indio_dev);
 		ret = IRQ_HANDLED;
 	}
@@ -1020,8 +1088,8 @@ done:
 }
 
 static int mma8452_reg_access_dbg(struct iio_dev *indio_dev,
-				  unsigned reg, unsigned writeval,
-				  unsigned *readval)
+				  unsigned int reg, unsigned int writeval,
+				  unsigned int *readval)
 {
 	int ret;
 	struct mma8452_data *data = iio_priv(indio_dev);
@@ -1222,96 +1290,87 @@ static const struct mma_chip_info mma_chip_info_table[] = {
 		 *	g * N * 1000000 / 2048 for N = 2, 4, 8 and g=9.80665
 		 */
 		.mma_scales = { {0, 2394}, {0, 4788}, {0, 9577} },
-		.ev_cfg = MMA8452_TRANSIENT_CFG,
-		.ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
-		.ev_cfg_chan_shift = 1,
-		.ev_src = MMA8452_TRANSIENT_SRC,
-		.ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
-		.ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
-		.ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
-		.ev_ths = MMA8452_TRANSIENT_THS,
-		.ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
-		.ev_count = MMA8452_TRANSIENT_COUNT,
+		/*
+		 * Although we enable the interrupt sources once and for
+		 * all here the event detection itself is not enabled until
+		 * userspace asks for it by mma8452_write_event_config()
+		 */
+		.all_events = MMA8452_INT_DRDY |
+					MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
+		.enabled_events = MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
 	},
 	[mma8452] = {
 		.chip_id = MMA8452_DEVICE_ID,
 		.channels = mma8452_channels,
 		.num_channels = ARRAY_SIZE(mma8452_channels),
 		.mma_scales = { {0, 9577}, {0, 19154}, {0, 38307} },
-		.ev_cfg = MMA8452_TRANSIENT_CFG,
-		.ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
-		.ev_cfg_chan_shift = 1,
-		.ev_src = MMA8452_TRANSIENT_SRC,
-		.ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
-		.ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
-		.ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
-		.ev_ths = MMA8452_TRANSIENT_THS,
-		.ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
-		.ev_count = MMA8452_TRANSIENT_COUNT,
+		/*
+		 * Although we enable the interrupt sources once and for
+		 * all here the event detection itself is not enabled until
+		 * userspace asks for it by mma8452_write_event_config()
+		 */
+		.all_events = MMA8452_INT_DRDY |
+					MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
+		.enabled_events = MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
 	},
 	[mma8453] = {
 		.chip_id = MMA8453_DEVICE_ID,
 		.channels = mma8453_channels,
 		.num_channels = ARRAY_SIZE(mma8453_channels),
 		.mma_scales = { {0, 38307}, {0, 76614}, {0, 153228} },
-		.ev_cfg = MMA8452_TRANSIENT_CFG,
-		.ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
-		.ev_cfg_chan_shift = 1,
-		.ev_src = MMA8452_TRANSIENT_SRC,
-		.ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
-		.ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
-		.ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
-		.ev_ths = MMA8452_TRANSIENT_THS,
-		.ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
-		.ev_count = MMA8452_TRANSIENT_COUNT,
+		/*
+		 * Although we enable the interrupt sources once and for
+		 * all here the event detection itself is not enabled until
+		 * userspace asks for it by mma8452_write_event_config()
+		 */
+		.all_events = MMA8452_INT_DRDY |
+					MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
+		.enabled_events = MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
 	},
 	[mma8652] = {
 		.chip_id = MMA8652_DEVICE_ID,
 		.channels = mma8652_channels,
 		.num_channels = ARRAY_SIZE(mma8652_channels),
 		.mma_scales = { {0, 9577}, {0, 19154}, {0, 38307} },
-		.ev_cfg = MMA8452_FF_MT_CFG,
-		.ev_cfg_ele = MMA8452_FF_MT_CFG_ELE,
-		.ev_cfg_chan_shift = 3,
-		.ev_src = MMA8452_FF_MT_SRC,
-		.ev_src_xe = MMA8452_FF_MT_SRC_XHE,
-		.ev_src_ye = MMA8452_FF_MT_SRC_YHE,
-		.ev_src_ze = MMA8452_FF_MT_SRC_ZHE,
-		.ev_ths = MMA8452_FF_MT_THS,
-		.ev_ths_mask = MMA8452_FF_MT_THS_MASK,
-		.ev_count = MMA8452_FF_MT_COUNT,
+		.all_events = MMA8452_INT_DRDY |
+					MMA8452_INT_FF_MT,
+		.enabled_events = MMA8452_INT_FF_MT,
 	},
 	[mma8653] = {
 		.chip_id = MMA8653_DEVICE_ID,
 		.channels = mma8653_channels,
 		.num_channels = ARRAY_SIZE(mma8653_channels),
 		.mma_scales = { {0, 38307}, {0, 76614}, {0, 153228} },
-		.ev_cfg = MMA8452_FF_MT_CFG,
-		.ev_cfg_ele = MMA8452_FF_MT_CFG_ELE,
-		.ev_cfg_chan_shift = 3,
-		.ev_src = MMA8452_FF_MT_SRC,
-		.ev_src_xe = MMA8452_FF_MT_SRC_XHE,
-		.ev_src_ye = MMA8452_FF_MT_SRC_YHE,
-		.ev_src_ze = MMA8452_FF_MT_SRC_ZHE,
-		.ev_ths = MMA8452_FF_MT_THS,
-		.ev_ths_mask = MMA8452_FF_MT_THS_MASK,
-		.ev_count = MMA8452_FF_MT_COUNT,
+		/*
+		 * Although we enable the interrupt sources once and for
+		 * all here the event detection itself is not enabled until
+		 * userspace asks for it by mma8452_write_event_config()
+		 */
+		.all_events = MMA8452_INT_DRDY |
+					MMA8452_INT_FF_MT,
+		.enabled_events = MMA8452_INT_FF_MT,
 	},
 	[fxls8471] = {
 		.chip_id = FXLS8471_DEVICE_ID,
 		.channels = mma8451_channels,
 		.num_channels = ARRAY_SIZE(mma8451_channels),
 		.mma_scales = { {0, 2394}, {0, 4788}, {0, 9577} },
-		.ev_cfg = MMA8452_TRANSIENT_CFG,
-		.ev_cfg_ele = MMA8452_TRANSIENT_CFG_ELE,
-		.ev_cfg_chan_shift = 1,
-		.ev_src = MMA8452_TRANSIENT_SRC,
-		.ev_src_xe = MMA8452_TRANSIENT_SRC_XTRANSE,
-		.ev_src_ye = MMA8452_TRANSIENT_SRC_YTRANSE,
-		.ev_src_ze = MMA8452_TRANSIENT_SRC_ZTRANSE,
-		.ev_ths = MMA8452_TRANSIENT_THS,
-		.ev_ths_mask = MMA8452_TRANSIENT_THS_MASK,
-		.ev_count = MMA8452_TRANSIENT_COUNT,
+		/*
+		 * Although we enable the interrupt sources once and for
+		 * all here the event detection itself is not enabled until
+		 * userspace asks for it by mma8452_write_event_config()
+		 */
+		.all_events = MMA8452_INT_DRDY |
+					MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
+		.enabled_events = MMA8452_INT_TRANS |
+					MMA8452_INT_FF_MT,
 	},
 };
 
@@ -1332,12 +1391,11 @@ static const struct iio_info mma8452_info = {
 	.read_raw = &mma8452_read_raw,
 	.write_raw = &mma8452_write_raw,
 	.event_attrs = &mma8452_event_attribute_group,
-	.read_event_value = &mma8452_read_thresh,
-	.write_event_value = &mma8452_write_thresh,
+	.read_event_value = &mma8452_read_event_value,
+	.write_event_value = &mma8452_write_event_value,
 	.read_event_config = &mma8452_read_event_config,
 	.write_event_config = &mma8452_write_event_config,
 	.debugfs_reg_access = &mma8452_reg_access_dbg,
-	.driver_module = THIS_MODULE,
 };
 
 static const unsigned long mma8452_scan_masks[] = {0x7, 0};
@@ -1368,7 +1426,6 @@ static int mma8452_data_rdy_trigger_set_state(struct iio_trigger *trig,
 static const struct iio_trigger_ops mma8452_trigger_ops = {
 	.set_trigger_state = mma8452_data_rdy_trigger_set_state,
 	.validate_device = iio_trigger_validate_own_device,
-	.owner = THIS_MODULE,
 };
 
 static int mma8452_trigger_setup(struct iio_dev *indio_dev)
@@ -1509,16 +1566,6 @@ static int mma8452_probe(struct i2c_client *client,
 		return ret;
 
 	if (client->irq) {
-		/*
-		 * Although we enable the interrupt sources once and for
-		 * all here the event detection itself is not enabled until
-		 * userspace asks for it by mma8452_write_event_config()
-		 */
-		int supported_interrupts = MMA8452_INT_DRDY |
-					   MMA8452_INT_TRANS |
-					   MMA8452_INT_FF_MT;
-		int enabled_interrupts = MMA8452_INT_TRANS |
-					 MMA8452_INT_FF_MT;
 		int irq2;
 
 		irq2 = of_irq_get_byname(client->dev.of_node, "INT2");
@@ -1527,8 +1574,8 @@ static int mma8452_probe(struct i2c_client *client,
 			dev_dbg(&client->dev, "using interrupt line INT2\n");
 		} else {
 			ret = i2c_smbus_write_byte_data(client,
-							MMA8452_CTRL_REG5,
-							supported_interrupts);
+						MMA8452_CTRL_REG5,
+						data->chip_info->all_events);
 			if (ret < 0)
 				return ret;
 
@@ -1536,8 +1583,8 @@ static int mma8452_probe(struct i2c_client *client,
 		}
 
 		ret = i2c_smbus_write_byte_data(client,
-						MMA8452_CTRL_REG4,
-						enabled_interrupts);
+					MMA8452_CTRL_REG4,
+					data->chip_info->enabled_events);
 		if (ret < 0)
 			return ret;
 
diff --git a/drivers/iio/accel/mma9551.c b/drivers/iio/accel/mma9551.c
index 1f53f08476f5..da7c21504f38 100644
--- a/drivers/iio/accel/mma9551.c
+++ b/drivers/iio/accel/mma9551.c
@@ -332,7 +332,6 @@ static const struct iio_chan_spec mma9551_channels[] = {
 };
 
 static const struct iio_info mma9551_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = mma9551_read_raw,
 	.read_event_config = mma9551_read_event_config,
 	.write_event_config = mma9551_write_event_config,
diff --git a/drivers/iio/accel/mma9553.c b/drivers/iio/accel/mma9553.c
index 36bf19733be0..b52a3f182190 100644
--- a/drivers/iio/accel/mma9553.c
+++ b/drivers/iio/accel/mma9553.c
@@ -987,7 +987,6 @@ static const struct iio_chan_spec mma9553_channels[] = {
 };
 
 static const struct iio_info mma9553_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = mma9553_read_raw,
 	.write_raw = mma9553_write_raw,
 	.read_event_config = mma9553_read_event_config,
diff --git a/drivers/iio/accel/mxc4005.c b/drivers/iio/accel/mxc4005.c
index c23f47af7256..58099e40d717 100644
--- a/drivers/iio/accel/mxc4005.c
+++ b/drivers/iio/accel/mxc4005.c
@@ -264,7 +264,6 @@ static int mxc4005_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info mxc4005_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= mxc4005_read_raw,
 	.write_raw	= mxc4005_write_raw,
 	.attrs		= &mxc4005_attrs_group,
@@ -376,7 +375,6 @@ static int mxc4005_trigger_try_reen(struct iio_trigger *trig)
 static const struct iio_trigger_ops mxc4005_trigger_ops = {
 	.set_trigger_state = mxc4005_set_trigger_state,
 	.try_reenable = mxc4005_trigger_try_reen,
-	.owner = THIS_MODULE,
 };
 
 static int mxc4005_chip_init(struct mxc4005_data *data)
diff --git a/drivers/iio/accel/mxc6255.c b/drivers/iio/accel/mxc6255.c
index 0abad6948201..ddd50d1781c5 100644
--- a/drivers/iio/accel/mxc6255.c
+++ b/drivers/iio/accel/mxc6255.c
@@ -78,7 +78,6 @@ static int mxc6255_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info mxc6255_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= mxc6255_read_raw,
 };
 
diff --git a/drivers/iio/accel/sca3000.c b/drivers/iio/accel/sca3000.c
index 39ab210c44f6..f33dadf7b262 100644
--- a/drivers/iio/accel/sca3000.c
+++ b/drivers/iio/accel/sca3000.c
@@ -1454,7 +1454,6 @@ static const struct iio_info sca3000_info = {
 	.write_event_value = &sca3000_write_event_value,
 	.read_event_config = &sca3000_read_event_config,
 	.write_event_config = &sca3000_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static int sca3000_probe(struct spi_device *spi)
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 0fe521609a3a..2f931e4837e5 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -32,6 +32,8 @@ enum st_accel_type {
 	H3LIS331DL,
 	LIS331DL,
 	LIS3LV02DL,
+	LIS2DW12,
+	LIS3DHH,
 	ST_ACCEL_MAX,
 };
 
@@ -52,6 +54,8 @@ enum st_accel_type {
 #define LIS2DH12_ACCEL_DEV_NAME		"lis2dh12_accel"
 #define LIS3L02DQ_ACCEL_DEV_NAME	"lis3l02dq"
 #define LNG2DM_ACCEL_DEV_NAME		"lng2dm"
+#define LIS2DW12_ACCEL_DEV_NAME		"lis2dw12"
+#define LIS3DHH_ACCEL_DEV_NAME		"lis3dhh"
 
 /**
 * struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 752856b3a849..460aa58e0159 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -159,12 +159,16 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask = 0x80,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int1 = 0x10,
-			.mask_int2 = 0x00,
+			.int1 = {
+				.addr = 0x22,
+				.mask = 0x10,
+			},
 			.addr_ihl = 0x25,
 			.mask_ihl = 0x02,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 		},
 		.sim = {
 			.addr = 0x23,
@@ -229,14 +233,24 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask = 0x80,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int1 = 0x02,
-			.mask_int2 = 0x10,
+			.int1 = {
+				.addr = 0x22,
+				.mask = 0x02,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x10,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 		},
 		.sim = {
 			.addr = 0x23,
@@ -313,12 +327,16 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask = 0x08,
 		},
 		.drdy_irq = {
-			.addr = 0x23,
-			.mask_int1 = 0x80,
-			.mask_int2 = 0x00,
+			.int1 = {
+				.addr = 0x23,
+				.mask = 0x80,
+			},
 			.addr_ihl = 0x23,
 			.mask_ihl = 0x40,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 			.ig1 = {
 				.en_addr = 0x23,
 				.en_mask = 0x08,
@@ -387,9 +405,14 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask = 0x01,
 		},
 		.drdy_irq = {
-			.addr = 0x21,
-			.mask_int1 = 0x04,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.int1 = {
+				.addr = 0x21,
+				.mask = 0x04,
+			},
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 		},
 		.sim = {
 			.addr = 0x21,
@@ -444,14 +467,24 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			},
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int1 = 0x04,
-			.mask_int2 = 0x20,
+			.int1 = {
+				.addr = 0x22,
+				.mask = 0x04,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x20,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 		},
 		.sim = {
 			.addr = 0x21,
@@ -513,9 +546,14 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			.mask = 0x80,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int1 = 0x02,
-			.mask_int2 = 0x10,
+			.int1 = {
+				.addr = 0x22,
+				.mask = 0x02,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x10,
+			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
 		},
@@ -567,9 +605,14 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 		.bdu = {
 		},
 		.drdy_irq = {
-			.addr = 0x21,
-			.mask_int1 = 0x04,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.int1 = {
+				.addr = 0x21,
+				.mask = 0x04,
+			},
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 		},
 		.sim = {
 			.addr = 0x21,
@@ -635,12 +678,16 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 			},
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int1 = 0x10,
-			.mask_int2 = 0x00,
+			.int1 = {
+				.addr = 0x22,
+				.mask = 0x10,
+			},
 			.addr_ihl = 0x25,
 			.mask_ihl = 0x02,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
 		},
 		.sim = {
 			.addr = 0x23,
@@ -649,6 +696,139 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
 		.multi_read_bit = true,
 		.bootime = 2,
 	},
+	{
+		.wai = 0x44,
+		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+		.sensors_supported = {
+			[0] = LIS2DW12_ACCEL_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_accel_12bit_channels,
+		.odr = {
+			.addr = 0x20,
+			.mask = 0xf0,
+			.odr_avl = {
+				{ .hz = 1, .value = 0x01, },
+				{ .hz = 12, .value = 0x02, },
+				{ .hz = 25, .value = 0x03, },
+				{ .hz = 50, .value = 0x04, },
+				{ .hz = 100, .value = 0x05, },
+				{ .hz = 200, .value = 0x06, },
+			},
+		},
+		.pw = {
+			.addr = 0x20,
+			.mask = 0xf0,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.fs = {
+			.addr = 0x25,
+			.mask = 0x30,
+			.fs_avl = {
+				[0] = {
+					.num = ST_ACCEL_FS_AVL_2G,
+					.value = 0x00,
+					.gain = IIO_G_TO_M_S_2(976),
+				},
+				[1] = {
+					.num = ST_ACCEL_FS_AVL_4G,
+					.value = 0x01,
+					.gain = IIO_G_TO_M_S_2(1952),
+				},
+				[2] = {
+					.num = ST_ACCEL_FS_AVL_8G,
+					.value = 0x02,
+					.gain = IIO_G_TO_M_S_2(3904),
+				},
+				[3] = {
+					.num = ST_ACCEL_FS_AVL_16G,
+					.value = 0x03,
+					.gain = IIO_G_TO_M_S_2(7808),
+				},
+			},
+		},
+		.bdu = {
+			.addr = 0x21,
+			.mask = 0x08,
+		},
+		.drdy_irq = {
+			.int1 = {
+				.addr = 0x23,
+				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x20,
+			},
+			.int2 = {
+				.addr = 0x24,
+				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x20,
+			},
+			.addr_ihl = 0x22,
+			.mask_ihl = 0x08,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x01,
+			},
+		},
+		.sim = {
+			.addr = 0x21,
+			.value = BIT(0),
+		},
+		.multi_read_bit = false,
+		.bootime = 2,
+	},
+	{
+		.wai = 0x11,
+		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+		.sensors_supported = {
+			[0] = LIS3DHH_ACCEL_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_accel_16bit_channels,
+		.odr = {
+			/* just ODR = 1100Hz available */
+			.odr_avl = {
+				{ .hz = 1100, .value = 0x00, },
+			},
+		},
+		.pw = {
+			.addr = 0x20,
+			.mask = 0x80,
+			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.fs = {
+			.fs_avl = {
+				[0] = {
+					.num = ST_ACCEL_FS_AVL_2G,
+					.gain = IIO_G_TO_M_S_2(76),
+				},
+			},
+		},
+		.bdu = {
+			.addr = 0x20,
+			.mask = 0x01,
+		},
+		.drdy_irq = {
+			.int1 = {
+				.addr = 0x21,
+				.mask = 0x80,
+				.addr_od = 0x23,
+				.mask_od = 0x04,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x80,
+				.addr_od = 0x23,
+				.mask_od = 0x08,
+			},
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.multi_read_bit = false,
+		.bootime = 2,
+	},
 };
 
 static int st_accel_read_raw(struct iio_dev *indio_dev,
@@ -721,7 +901,6 @@ static const struct attribute_group st_accel_attribute_group = {
 };
 
 static const struct iio_info accel_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &st_accel_attribute_group,
 	.read_raw = &st_accel_read_raw,
 	.write_raw = &st_accel_write_raw,
@@ -730,7 +909,6 @@ static const struct iio_info accel_info = {
 
 #ifdef CONFIG_IIO_TRIGGER
 static const struct iio_trigger_ops st_accel_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = ST_ACCEL_TRIGGER_SET_STATE,
 	.validate_device = st_sensors_validate_device,
 };
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 18cafb9f2468..363429b5686c 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -94,6 +94,10 @@ static const struct of_device_id st_accel_of_match[] = {
 		.compatible = "st,lng2dm-accel",
 		.data = LNG2DM_ACCEL_DEV_NAME,
 	},
+	{
+		.compatible = "st,lis2dw12",
+		.data = LIS2DW12_ACCEL_DEV_NAME,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -129,6 +133,7 @@ static const struct i2c_device_id st_accel_id_table[] = {
 	{ H3LIS331DL_ACCEL_DEV_NAME, H3LIS331DL },
 	{ LIS331DL_ACCEL_DEV_NAME, LIS331DL },
 	{ LIS3LV02DL_ACCEL_DEV_NAME, LIS3LV02DL },
+	{ LIS2DW12_ACCEL_DEV_NAME, LIS2DW12 },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c
index 915fa49085f7..dcc9bd243a52 100644
--- a/drivers/iio/accel/st_accel_spi.c
+++ b/drivers/iio/accel/st_accel_spi.c
@@ -82,6 +82,14 @@ static const struct of_device_id st_accel_of_match[] = {
 		.compatible = "st,lis331dl-accel",
 		.data = LIS331DL_ACCEL_DEV_NAME,
 	},
+	{
+		.compatible = "st,lis2dw12",
+		.data = LIS2DW12_ACCEL_DEV_NAME,
+	},
+	{
+		.compatible = "st,lis3dhh",
+		.data = LIS3DHH_ACCEL_DEV_NAME,
+	},
 	{}
 };
 MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -133,6 +141,8 @@ static const struct spi_device_id st_accel_id_table[] = {
 	{ H3LIS331DL_ACCEL_DEV_NAME },
 	{ LIS331DL_ACCEL_DEV_NAME },
 	{ LIS3LV02DL_ACCEL_DEV_NAME },
+	{ LIS2DW12_ACCEL_DEV_NAME },
+	{ LIS3DHH_ACCEL_DEV_NAME },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_accel_id_table);
diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c
index e31023dc5f1b..cacc0da2f874 100644
--- a/drivers/iio/accel/stk8312.c
+++ b/drivers/iio/accel/stk8312.c
@@ -237,7 +237,6 @@ static int stk8312_data_rdy_trigger_set_state(struct iio_trigger *trig,
 
 static const struct iio_trigger_ops stk8312_trigger_ops = {
 	.set_trigger_state = stk8312_data_rdy_trigger_set_state,
-	.owner = THIS_MODULE,
 };
 
 static int stk8312_set_sample_rate(struct stk8312_data *data, u8 rate)
@@ -421,7 +420,6 @@ static int stk8312_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info stk8312_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= stk8312_read_raw,
 	.write_raw		= stk8312_write_raw,
 	.attrs			= &stk8312_attribute_group,
diff --git a/drivers/iio/accel/stk8ba50.c b/drivers/iio/accel/stk8ba50.c
index 300d955bad00..576b6b140f08 100644
--- a/drivers/iio/accel/stk8ba50.c
+++ b/drivers/iio/accel/stk8ba50.c
@@ -179,7 +179,6 @@ static int stk8ba50_data_rdy_trigger_set_state(struct iio_trigger *trig,
 
 static const struct iio_trigger_ops stk8ba50_trigger_ops = {
 	.set_trigger_state = stk8ba50_data_rdy_trigger_set_state,
-	.owner = THIS_MODULE,
 };
 
 static int stk8ba50_set_power(struct stk8ba50_data *data, bool mode)
@@ -307,7 +306,6 @@ static int stk8ba50_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info stk8ba50_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= stk8ba50_read_raw,
 	.write_raw		= stk8ba50_write_raw,
 	.attrs			= &stk8ba50_attribute_group,
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 57625653fcb6..ef86296b8b0d 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -243,6 +243,8 @@ config DA9150_GPADC
 config DLN2_ADC
 	tristate "Diolan DLN-2 ADC driver support"
 	depends on MFD_DLN2
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for Diolan DLN-2 ADC.
 
@@ -475,12 +477,13 @@ config	MAX9611
 	  called max9611.
 
 config MCP320X
-	tristate "Microchip Technology MCP3x01/02/04/08"
+	tristate "Microchip Technology MCP3x01/02/04/08 and MCP3550/1/3"
 	depends on SPI
 	help
 	  Say yes here to build support for Microchip Technology's
 	  MCP3001, MCP3002, MCP3004, MCP3008, MCP3201, MCP3202, MCP3204,
-	  MCP3208 or MCP3301 analog to digital converter.
+	  MCP3208, MCP3301, MCP3550, MCP3551 and MCP3553 analog to digital
+	  converters.
 
 	  This driver can also be built as a module. If so, the module will be
 	  called mcp320x.
@@ -593,7 +596,7 @@ config QCOM_SPMI_VADC
 
 config RCAR_GYRO_ADC
 	tristate "Renesas R-Car GyroADC driver"
-	depends on ARCH_RCAR_GEN2 || (ARM && COMPILE_TEST)
+	depends on ARCH_RCAR_GEN2 || COMPILE_TEST
 	help
 	  Say yes here to build support for the GyroADC found in Renesas
 	  R-Car Gen2 SoCs. This block is a simple SPI offload engine for
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 9874e05f52d7..9572c1090f35 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for IIO ADC drivers
 #
diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index b8d5cfd57ec4..605eb5e7e829 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -280,7 +280,6 @@ static AD7266_DECLARE_DIFF_CHANNELS_FIXED(u, 'u');
 static const struct iio_info ad7266_info = {
 	.read_raw = &ad7266_read_raw,
 	.update_scan_mode = &ad7266_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const unsigned long ad7266_available_scan_masks[] = {
diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c
index 1d90b02732bb..a862b5d8fb4b 100644
--- a/drivers/iio/adc/ad7291.c
+++ b/drivers/iio/adc/ad7291.c
@@ -461,7 +461,6 @@ static const struct iio_info ad7291_info = {
 	.write_event_config = &ad7291_write_event_config,
 	.read_event_value = &ad7291_read_event_value,
 	.write_event_value = &ad7291_write_event_value,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad7291_probe(struct i2c_client *client,
diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c
index e399bf04c73a..2b20c6c8ec7f 100644
--- a/drivers/iio/adc/ad7298.c
+++ b/drivers/iio/adc/ad7298.c
@@ -280,7 +280,6 @@ static int ad7298_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad7298_info = {
 	.read_raw = &ad7298_read_raw,
 	.update_scan_mode = ad7298_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad7298_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index b7ecf9aab90f..b7706bf10ffe 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -195,7 +195,6 @@ static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
 };
 
 static const struct iio_info ad7476_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7476_read_raw,
 };
 
diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c
index ce45037295d8..3ae14fc8c649 100644
--- a/drivers/iio/adc/ad7766.c
+++ b/drivers/iio/adc/ad7766.c
@@ -185,7 +185,6 @@ static const struct iio_buffer_setup_ops ad7766_buffer_setup_ops = {
 };
 
 static const struct iio_info ad7766_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7766_read_raw,
 };
 
@@ -208,7 +207,6 @@ static int ad7766_set_trigger_state(struct iio_trigger *trig, bool enable)
 }
 
 static const struct iio_trigger_ops ad7766_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = ad7766_set_trigger_state,
 	.validate_device = iio_trigger_validate_own_device,
 };
diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
index 34e353c43ac8..70fbf92f9827 100644
--- a/drivers/iio/adc/ad7791.c
+++ b/drivers/iio/adc/ad7791.c
@@ -308,13 +308,11 @@ static const struct iio_info ad7791_info = {
 	.read_raw = &ad7791_read_raw,
 	.attrs = &ad7791_attribute_group,
 	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad7791_no_filter_info = {
 	.read_raw = &ad7791_read_raw,
 	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad7791_setup(struct ad7791_state *st,
diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index e6706a09e100..801afb61310b 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -257,7 +257,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
 	unsigned int vref_mv)
 {
 	struct ad7793_state *st = iio_priv(indio_dev);
-	int i, ret = -1;
+	int i, ret;
 	unsigned long long scale_uv;
 	u32 id;
 
@@ -266,7 +266,7 @@ static int ad7793_setup(struct iio_dev *indio_dev,
 		return ret;
 
 	/* reset the serial interface */
-	ret = spi_write(st->sd.spi, (u8 *)&ret, sizeof(ret));
+	ret = ad_sd_reset(&st->sd, 32);
 	if (ret < 0)
 		goto out;
 	usleep_range(500, 2000); /* Wait for at least 500us */
@@ -563,7 +563,6 @@ static const struct iio_info ad7793_info = {
 	.write_raw_get_fmt = &ad7793_write_raw_get_fmt,
 	.attrs = &ad7793_attribute_group,
 	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad7797_info = {
@@ -572,7 +571,6 @@ static const struct iio_info ad7797_info = {
 	.write_raw_get_fmt = &ad7793_write_raw_get_fmt,
 	.attrs = &ad7793_attribute_group,
 	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
 };
 
 #define DECLARE_AD7793_CHANNELS(_name, _b, _sb, _s) \
diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
index 7a483bfbd70c..205c0f1761aa 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -229,7 +229,6 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 
 static const struct iio_info ad7887_info = {
 	.read_raw = &ad7887_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad7887_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c
index 77a675e11ebb..ffb7e089969c 100644
--- a/drivers/iio/adc/ad7923.c
+++ b/drivers/iio/adc/ad7923.c
@@ -262,7 +262,6 @@ static int ad7923_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad7923_info = {
 	.read_raw = &ad7923_read_raw,
 	.update_scan_mode = ad7923_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad7923_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c
index 22426ae4af97..e1da67d5ee22 100644
--- a/drivers/iio/adc/ad799x.c
+++ b/drivers/iio/adc/ad799x.c
@@ -526,13 +526,11 @@ static const struct attribute_group ad799x_event_attrs_group = {
 
 static const struct iio_info ad7991_info = {
 	.read_raw = &ad799x_read_raw,
-	.driver_module = THIS_MODULE,
 	.update_scan_mode = ad799x_update_scan_mode,
 };
 
 static const struct iio_info ad7993_4_7_8_noirq_info = {
 	.read_raw = &ad799x_read_raw,
-	.driver_module = THIS_MODULE,
 	.update_scan_mode = ad799x_update_scan_mode,
 };
 
@@ -543,7 +541,6 @@ static const struct iio_info ad7993_4_7_8_irq_info = {
 	.write_event_config = &ad799x_write_event_config,
 	.read_event_value = &ad799x_read_event_value,
 	.write_event_value = &ad799x_write_event_value,
-	.driver_module = THIS_MODULE,
 	.update_scan_mode = ad799x_update_scan_mode,
 };
 
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index d10bd0c97233..cf1b048b0665 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -177,6 +177,34 @@ out:
 }
 EXPORT_SYMBOL_GPL(ad_sd_read_reg);
 
+/**
+ * ad_sd_reset() - Reset the serial interface
+ *
+ * @sigma_delta: The sigma delta device
+ * @reset_length: Number of SCLKs with DIN = 1
+ *
+ * Returns 0 on success, an error code otherwise.
+ **/
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+	unsigned int reset_length)
+{
+	uint8_t *buf;
+	unsigned int size;
+	int ret;
+
+	size = DIV_ROUND_UP(reset_length, 8);
+	buf = kcalloc(size, sizeof(*buf), GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	memset(buf, 0xff, size);
+	ret = spi_write(sigma_delta->spi, buf, size);
+	kfree(buf);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ad_sd_reset);
+
 static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
 	unsigned int mode, unsigned int channel)
 {
@@ -435,7 +463,6 @@ int ad_sd_validate_trigger(struct iio_dev *indio_dev, struct iio_trigger *trig)
 EXPORT_SYMBOL_GPL(ad_sd_validate_trigger);
 
 static const struct iio_trigger_ops ad_sd_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static int ad_sd_probe_trigger(struct iio_dev *indio_dev)
diff --git a/drivers/iio/adc/aspeed_adc.c b/drivers/iio/adc/aspeed_adc.c
index c02b23d675cb..8a958d5f1905 100644
--- a/drivers/iio/adc/aspeed_adc.c
+++ b/drivers/iio/adc/aspeed_adc.c
@@ -165,7 +165,6 @@ static int aspeed_adc_reg_access(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info aspeed_adc_iio_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = aspeed_adc_read_raw,
 	.write_raw = aspeed_adc_write_raw,
 	.debugfs_reg_access = aspeed_adc_reg_access,
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index bc5b38e3a147..755a493c2a2c 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -225,6 +225,7 @@ struct at91_adc_trigger {
 	char				*name;
 	unsigned int			trgmod_value;
 	unsigned int			edge_type;
+	bool				hw_trig;
 };
 
 struct at91_adc_state {
@@ -254,16 +255,25 @@ static const struct at91_adc_trigger at91_adc_trigger_list[] = {
 		.name = "external_rising",
 		.trgmod_value = AT91_SAMA5D2_TRGR_TRGMOD_EXT_TRIG_RISE,
 		.edge_type = IRQ_TYPE_EDGE_RISING,
+		.hw_trig = true,
 	},
 	{
 		.name = "external_falling",
 		.trgmod_value = AT91_SAMA5D2_TRGR_TRGMOD_EXT_TRIG_FALL,
 		.edge_type = IRQ_TYPE_EDGE_FALLING,
+		.hw_trig = true,
 	},
 	{
 		.name = "external_any",
 		.trgmod_value = AT91_SAMA5D2_TRGR_TRGMOD_EXT_TRIG_ANY,
 		.edge_type = IRQ_TYPE_EDGE_BOTH,
+		.hw_trig = true,
+	},
+	{
+		.name = "software",
+		.trgmod_value = AT91_SAMA5D2_TRGR_TRGMOD_NO_TRIGGER,
+		.edge_type = IRQ_TYPE_NONE,
+		.hw_trig = false,
 	},
 };
 
@@ -338,7 +348,6 @@ static int at91_adc_reenable_trigger(struct iio_trigger *trig)
 }
 
 static const struct iio_trigger_ops at91_adc_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &at91_adc_configure_trigger,
 	.try_reenable = &at91_adc_reenable_trigger,
 };
@@ -574,7 +583,6 @@ static int at91_adc_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info at91_adc_info = {
 	.read_raw = &at91_adc_read_raw,
 	.write_raw = &at91_adc_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static void at91_adc_hw_init(struct at91_adc_state *st)
@@ -597,7 +605,7 @@ static int at91_adc_probe(struct platform_device *pdev)
 	struct at91_adc_state *st;
 	struct resource	*res;
 	int ret, i;
-	u32 edge_type;
+	u32 edge_type = IRQ_TYPE_NONE;
 
 	indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*st));
 	if (!indio_dev)
@@ -641,14 +649,14 @@ static int at91_adc_probe(struct platform_device *pdev)
 	ret = of_property_read_u32(pdev->dev.of_node,
 				   "atmel,trigger-edge-type", &edge_type);
 	if (ret) {
-		dev_err(&pdev->dev,
-			"invalid or missing value for atmel,trigger-edge-type\n");
-		return ret;
+		dev_dbg(&pdev->dev,
+			"atmel,trigger-edge-type not specified, only software trigger available\n");
 	}
 
 	st->selected_trig = NULL;
 
-	for (i = 0; i < AT91_SAMA5D2_HW_TRIG_CNT; i++)
+	/* find the right trigger, or no trigger at all */
+	for (i = 0; i < AT91_SAMA5D2_HW_TRIG_CNT + 1; i++)
 		if (at91_adc_trigger_list[i].edge_type == edge_type) {
 			st->selected_trig = &at91_adc_trigger_list[i];
 			break;
@@ -717,24 +725,27 @@ static int at91_adc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, indio_dev);
 
-	ret = at91_adc_buffer_init(indio_dev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "couldn't initialize the buffer.\n");
-		goto per_clk_disable_unprepare;
-	}
+	if (st->selected_trig->hw_trig) {
+		ret = at91_adc_buffer_init(indio_dev);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "couldn't initialize the buffer.\n");
+			goto per_clk_disable_unprepare;
+		}
 
-	ret = at91_adc_trigger_init(indio_dev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "couldn't setup the triggers.\n");
-		goto per_clk_disable_unprepare;
+		ret = at91_adc_trigger_init(indio_dev);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "couldn't setup the triggers.\n");
+			goto per_clk_disable_unprepare;
+		}
 	}
 
 	ret = iio_device_register(indio_dev);
 	if (ret < 0)
 		goto per_clk_disable_unprepare;
 
-	dev_info(&pdev->dev, "setting up trigger as %s\n",
-		 st->selected_trig->name);
+	if (st->selected_trig->hw_trig)
+		dev_info(&pdev->dev, "setting up trigger as %s\n",
+			 st->selected_trig->name);
 
 	dev_info(&pdev->dev, "version: %x\n",
 		 readl_relaxed(st->base + AT91_SAMA5D2_VERSION));
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 15109728cae7..3836d4222a3e 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -594,7 +594,6 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
 }
 
 static const struct iio_trigger_ops at91_adc_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &at91_adc_configure_trigger,
 };
 
@@ -976,7 +975,6 @@ static int at91_adc_probe_pdata(struct at91_adc_state *st,
 }
 
 static const struct iio_info at91_adc_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &at91_adc_read_raw,
 };
 
diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c
index 11e177180ea0..a30a97245e91 100644
--- a/drivers/iio/adc/axp20x_adc.c
+++ b/drivers/iio/adc/axp20x_adc.c
@@ -464,12 +464,10 @@ static int axp20x_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info axp20x_adc_iio_info = {
 	.read_raw = axp20x_read_raw,
 	.write_raw = axp20x_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info axp22x_adc_iio_info = {
 	.read_raw = axp22x_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int axp20x_adc_rate(int rate)
diff --git a/drivers/iio/adc/axp288_adc.c b/drivers/iio/adc/axp288_adc.c
index 462a99c13e7a..60c9e853dd81 100644
--- a/drivers/iio/adc/axp288_adc.c
+++ b/drivers/iio/adc/axp288_adc.c
@@ -183,7 +183,6 @@ static int axp288_adc_set_state(struct regmap *regmap)
 
 static const struct iio_info axp288_adc_iio_info = {
 	.read_raw = &axp288_adc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int axp288_adc_probe(struct platform_device *pdev)
diff --git a/drivers/iio/adc/bcm_iproc_adc.c b/drivers/iio/adc/bcm_iproc_adc.c
index 7f4f9c4150e3..7af59a4bbd8d 100644
--- a/drivers/iio/adc/bcm_iproc_adc.c
+++ b/drivers/iio/adc/bcm_iproc_adc.c
@@ -492,7 +492,6 @@ static int iproc_adc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info iproc_adc_iio_info = {
 	.read_raw = &iproc_adc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define IPROC_ADC_CHANNEL(_index, _id) {                \
diff --git a/drivers/iio/adc/berlin2-adc.c b/drivers/iio/adc/berlin2-adc.c
index 71c806ecc722..72d8fa94ab31 100644
--- a/drivers/iio/adc/berlin2-adc.c
+++ b/drivers/iio/adc/berlin2-adc.c
@@ -277,7 +277,6 @@ static irqreturn_t berlin2_adc_tsen_irq(int irq, void *private)
 }
 
 static const struct iio_info berlin2_adc_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= berlin2_adc_read_raw,
 };
 
diff --git a/drivers/iio/adc/cc10001_adc.c b/drivers/iio/adc/cc10001_adc.c
index 91636c0ba5b5..707d8b24b072 100644
--- a/drivers/iio/adc/cc10001_adc.c
+++ b/drivers/iio/adc/cc10001_adc.c
@@ -262,7 +262,6 @@ static int cc10001_update_scan_mode(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info cc10001_adc_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &cc10001_adc_read_raw,
 	.update_scan_mode = &cc10001_update_scan_mode,
 };
diff --git a/drivers/iio/adc/cpcap-adc.c b/drivers/iio/adc/cpcap-adc.c
index 6e419d5a7c14..3576ec73ec23 100644
--- a/drivers/iio/adc/cpcap-adc.c
+++ b/drivers/iio/adc/cpcap-adc.c
@@ -932,7 +932,6 @@ err_unlock:
 
 static const struct iio_info cpcap_adc_info = {
 	.read_raw = &cpcap_adc_read,
-	.driver_module = THIS_MODULE,
 };
 
 /*
diff --git a/drivers/iio/adc/da9150-gpadc.c b/drivers/iio/adc/da9150-gpadc.c
index 3445107e10b7..0a5d9ce79164 100644
--- a/drivers/iio/adc/da9150-gpadc.c
+++ b/drivers/iio/adc/da9150-gpadc.c
@@ -249,7 +249,6 @@ static int da9150_gpadc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info da9150_gpadc_info = {
 	.read_raw = &da9150_gpadc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define DA9150_GPADC_CHANNEL(_id, _hw_id, _type, chan_info,	\
diff --git a/drivers/iio/adc/dln2-adc.c b/drivers/iio/adc/dln2-adc.c
index ab8d6aed5085..c64c6675cae6 100644
--- a/drivers/iio/adc/dln2-adc.c
+++ b/drivers/iio/adc/dln2-adc.c
@@ -479,7 +479,6 @@ static const struct iio_info dln2_adc_info = {
 	.read_raw = dln2_adc_read_raw,
 	.write_raw = dln2_adc_write_raw,
 	.update_scan_mode = dln2_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t dln2_adc_trigger_h(int irq, void *p)
@@ -604,10 +603,6 @@ static void dln2_adc_event(struct platform_device *pdev, u16 echo,
 	iio_trigger_poll(dln2->trig);
 }
 
-static const struct iio_trigger_ops dln2_adc_trigger_ops = {
-	.owner = THIS_MODULE,
-};
-
 static int dln2_adc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -665,7 +660,6 @@ static int dln2_adc_probe(struct platform_device *pdev)
 		dev_err(dev, "failed to allocate trigger\n");
 		return -ENOMEM;
 	}
-	dln2->trig->ops = &dln2_adc_trigger_ops;
 	iio_trigger_set_drvdata(dln2->trig, dln2);
 	devm_iio_trigger_register(dev, dln2->trig);
 	iio_trigger_set_immutable(indio_dev, dln2->trig);
diff --git a/drivers/iio/adc/envelope-detector.c b/drivers/iio/adc/envelope-detector.c
index fef15c0d7c9c..4ebda8ab54fe 100644
--- a/drivers/iio/adc/envelope-detector.c
+++ b/drivers/iio/adc/envelope-detector.c
@@ -322,7 +322,6 @@ static const struct iio_chan_spec envelope_detector_iio_channel = {
 
 static const struct iio_info envelope_detector_info = {
 	.read_raw = &envelope_detector_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int envelope_detector_probe(struct platform_device *pdev)
diff --git a/drivers/iio/adc/ep93xx_adc.c b/drivers/iio/adc/ep93xx_adc.c
index a179ac476c6d..81c901507ad2 100644
--- a/drivers/iio/adc/ep93xx_adc.c
+++ b/drivers/iio/adc/ep93xx_adc.c
@@ -150,7 +150,6 @@ static int ep93xx_read_raw(struct iio_dev *iiodev,
 }
 
 static const struct iio_info ep93xx_adc_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = ep93xx_read_raw,
 };
 
diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c
index 6c5a7be9f8c1..f10443f92e4c 100644
--- a/drivers/iio/adc/exynos_adc.c
+++ b/drivers/iio/adc/exynos_adc.c
@@ -657,7 +657,6 @@ static int exynos_adc_reg_access(struct iio_dev *indio_dev,
 static const struct iio_info exynos_adc_iio_info = {
 	.read_raw = &exynos_read_raw,
 	.debugfs_reg_access = &exynos_adc_reg_access,
-	.driver_module = THIS_MODULE,
 };
 
 #define ADC_CHANNEL(_index, _id) {			\
diff --git a/drivers/iio/adc/hi8435.c b/drivers/iio/adc/hi8435.c
index adf7dc712937..6f6c9a348158 100644
--- a/drivers/iio/adc/hi8435.c
+++ b/drivers/iio/adc/hi8435.c
@@ -408,7 +408,6 @@ static const struct iio_chan_spec hi8435_channels[] = {
 };
 
 static const struct iio_info hi8435_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = hi8435_read_raw,
 	.read_event_config = hi8435_read_event_config,
 	.write_event_config = hi8435_write_event_config,
diff --git a/drivers/iio/adc/hx711.c b/drivers/iio/adc/hx711.c
index 27005d84ed73..d10b9f13d557 100644
--- a/drivers/iio/adc/hx711.c
+++ b/drivers/iio/adc/hx711.c
@@ -374,7 +374,6 @@ static const struct attribute_group hx711_attribute_group = {
 };
 
 static const struct iio_info hx711_iio_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= hx711_read_raw,
 	.write_raw		= hx711_write_raw,
 	.write_raw_get_fmt	= hx711_write_raw_get_fmt,
diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c
index 254b29a68b9d..cfab31162845 100644
--- a/drivers/iio/adc/imx7d_adc.c
+++ b/drivers/iio/adc/imx7d_adc.c
@@ -412,7 +412,6 @@ static int imx7d_adc_reg_access(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info imx7d_adc_iio_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &imx7d_adc_read_raw,
 	.debugfs_reg_access = &imx7d_adc_reg_access,
 };
diff --git a/drivers/iio/adc/ina2xx-adc.c b/drivers/iio/adc/ina2xx-adc.c
index f387b972e4f4..84a43871f7dc 100644
--- a/drivers/iio/adc/ina2xx-adc.c
+++ b/drivers/iio/adc/ina2xx-adc.c
@@ -123,7 +123,7 @@ struct ina2xx_chip_info {
 	struct task_struct *task;
 	const struct ina2xx_config *config;
 	struct mutex state_lock;
-	unsigned int shunt_resistor;
+	unsigned int shunt_resistor_uohm;
 	int avg;
 	int int_time_vbus; /* Bus voltage integration time uS */
 	int int_time_vshunt; /* Shunt voltage integration time uS */
@@ -436,7 +436,7 @@ static ssize_t ina2xx_allow_async_readout_store(struct device *dev,
 /*
  * Set current LSB to 1mA, shunt is in uOhms
  * (equation 13 in datasheet). We hardcode a Current_LSB
- * of 1.0 x10-6. The only remaining parameter is RShunt.
+ * of 1.0 x10-3. The only remaining parameter is RShunt.
  * There is no need to expose the CALIBRATION register
  * to the user for now. But we need to reset this register
  * if the user updates RShunt after driver init, e.g upon
@@ -445,7 +445,7 @@ static ssize_t ina2xx_allow_async_readout_store(struct device *dev,
 static int ina2xx_set_calibration(struct ina2xx_chip_info *chip)
 {
 	u16 regval = DIV_ROUND_CLOSEST(chip->config->calibration_factor,
-				   chip->shunt_resistor);
+				   chip->shunt_resistor_uohm);
 
 	return regmap_write(chip->regmap, INA2XX_CALIBRATION, regval);
 }
@@ -455,7 +455,7 @@ static int set_shunt_resistor(struct ina2xx_chip_info *chip, unsigned int val)
 	if (val <= 0 || val > chip->config->calibration_factor)
 		return -EINVAL;
 
-	chip->shunt_resistor = val;
+	chip->shunt_resistor_uohm = val;
 
 	return 0;
 }
@@ -465,8 +465,9 @@ static ssize_t ina2xx_shunt_resistor_show(struct device *dev,
 					  char *buf)
 {
 	struct ina2xx_chip_info *chip = iio_priv(dev_to_iio_dev(dev));
+	int vals[2] = { chip->shunt_resistor_uohm, 1000000 };
 
-	return sprintf(buf, "%d\n", chip->shunt_resistor);
+	return iio_format_value(buf, IIO_VAL_FRACTIONAL, 1, vals);
 }
 
 static ssize_t ina2xx_shunt_resistor_store(struct device *dev,
@@ -474,14 +475,13 @@ static ssize_t ina2xx_shunt_resistor_store(struct device *dev,
 					   const char *buf, size_t len)
 {
 	struct ina2xx_chip_info *chip = iio_priv(dev_to_iio_dev(dev));
-	unsigned long val;
-	int ret;
+	int val, val_fract, ret;
 
-	ret = kstrtoul((const char *) buf, 10, &val);
+	ret = iio_str_to_fixpoint(buf, 100000, &val, &val_fract);
 	if (ret)
 		return ret;
 
-	ret = set_shunt_resistor(chip, val);
+	ret = set_shunt_resistor(chip, val * 1000000 + val_fract);
 	if (ret)
 		return ret;
 
@@ -778,7 +778,6 @@ static const struct attribute_group ina226_attribute_group = {
 };
 
 static const struct iio_info ina219_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &ina219_attribute_group,
 	.read_raw = ina2xx_read_raw,
 	.write_raw = ina2xx_write_raw,
@@ -786,7 +785,6 @@ static const struct iio_info ina219_info = {
 };
 
 static const struct iio_info ina226_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &ina226_attribute_group,
 	.read_raw = ina2xx_read_raw,
 	.write_raw = ina2xx_write_raw,
diff --git a/drivers/iio/adc/lp8788_adc.c b/drivers/iio/adc/lp8788_adc.c
index 152cfc8e1c7b..3bc4df916420 100644
--- a/drivers/iio/adc/lp8788_adc.c
+++ b/drivers/iio/adc/lp8788_adc.c
@@ -125,7 +125,6 @@ static int lp8788_adc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info lp8788_adc_info = {
 	.read_raw = &lp8788_adc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define LP8788_CHAN(_id, _type) {				\
diff --git a/drivers/iio/adc/lpc18xx_adc.c b/drivers/iio/adc/lpc18xx_adc.c
index 3ef18f4b27f0..041dc4a3f66c 100644
--- a/drivers/iio/adc/lpc18xx_adc.c
+++ b/drivers/iio/adc/lpc18xx_adc.c
@@ -116,7 +116,6 @@ static int lpc18xx_adc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info lpc18xx_adc_info = {
 	.read_raw = lpc18xx_adc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int lpc18xx_adc_probe(struct platform_device *pdev)
diff --git a/drivers/iio/adc/lpc32xx_adc.c b/drivers/iio/adc/lpc32xx_adc.c
index 6a5b9a9bc662..20b36690fa4f 100644
--- a/drivers/iio/adc/lpc32xx_adc.c
+++ b/drivers/iio/adc/lpc32xx_adc.c
@@ -104,7 +104,6 @@ static int lpc32xx_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info lpc32xx_adc_iio_info = {
 	.read_raw = &lpc32xx_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define LPC32XX_ADC_CHANNEL(_index) {			\
diff --git a/drivers/iio/adc/ltc2471.c b/drivers/iio/adc/ltc2471.c
index 29b7ed60cdb0..b88102b751cf 100644
--- a/drivers/iio/adc/ltc2471.c
+++ b/drivers/iio/adc/ltc2471.c
@@ -98,7 +98,6 @@ static const struct iio_chan_spec ltc2473_channel[] = {
 
 static const struct iio_info ltc2471_info = {
 	.read_raw = ltc2471_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ltc2471_i2c_probe(struct i2c_client *client,
diff --git a/drivers/iio/adc/ltc2485.c b/drivers/iio/adc/ltc2485.c
index eab91f12454a..b24c14037fd4 100644
--- a/drivers/iio/adc/ltc2485.c
+++ b/drivers/iio/adc/ltc2485.c
@@ -90,7 +90,6 @@ static const struct iio_chan_spec ltc2485_channel[] = {
 
 static const struct iio_info ltc2485_info = {
 	.read_raw = ltc2485_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ltc2485_probe(struct i2c_client *client,
diff --git a/drivers/iio/adc/ltc2497.c b/drivers/iio/adc/ltc2497.c
index 5bf8011dcde9..f1f7cdf66fbd 100644
--- a/drivers/iio/adc/ltc2497.c
+++ b/drivers/iio/adc/ltc2497.c
@@ -186,7 +186,6 @@ static const struct iio_chan_spec ltc2497_channel[] = {
 
 static const struct iio_info ltc2497_info = {
 	.read_raw = ltc2497_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ltc2497_probe(struct i2c_client *client,
diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c
index ebc715927e63..375da6491499 100644
--- a/drivers/iio/adc/max1027.c
+++ b/drivers/iio/adc/max1027.c
@@ -381,13 +381,11 @@ static irqreturn_t max1027_trigger_handler(int irq, void *private)
 }
 
 static const struct iio_trigger_ops max1027_trigger_ops = {
-	.owner = THIS_MODULE,
 	.validate_device = &iio_trigger_validate_own_device,
 	.set_trigger_state = &max1027_set_trigger_state,
 };
 
 static const struct iio_info max1027_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &max1027_read_raw,
 	.validate_trigger = &max1027_validate_trigger,
 	.debugfs_reg_access = &max1027_debugfs_reg_access,
diff --git a/drivers/iio/adc/max11100.c b/drivers/iio/adc/max11100.c
index 1180bcc22ff1..af59ab2e650c 100644
--- a/drivers/iio/adc/max11100.c
+++ b/drivers/iio/adc/max11100.c
@@ -100,7 +100,6 @@ static int max11100_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info max11100_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = max11100_read_raw,
 };
 
diff --git a/drivers/iio/adc/max1118.c b/drivers/iio/adc/max1118.c
index 2e9648a078c4..49db9e9ae625 100644
--- a/drivers/iio/adc/max1118.c
+++ b/drivers/iio/adc/max1118.c
@@ -155,7 +155,6 @@ static int max1118_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info max1118_info = {
 	.read_raw = max1118_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t max1118_trigger_handler(int irq, void *p)
diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index 80eada4886b3..7f1848dac9bf 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -1029,7 +1029,6 @@ static int max1363_update_scan_mode(struct iio_dev *indio_dev,
 
 static const struct iio_info max1238_info = {
 	.read_raw = &max1363_read_raw,
-	.driver_module = THIS_MODULE,
 	.update_scan_mode = &max1363_update_scan_mode,
 };
 
@@ -1040,7 +1039,6 @@ static const struct iio_info max1363_info = {
 	.write_event_config = &max1363_write_event_config,
 	.read_raw = &max1363_read_raw,
 	.update_scan_mode = &max1363_update_scan_mode,
-	.driver_module = THIS_MODULE,
 	.event_attrs = &max1363_event_attribute_group,
 };
 
diff --git a/drivers/iio/adc/max9611.c b/drivers/iio/adc/max9611.c
index b1dd17cbce58..0538ff8c4ac1 100644
--- a/drivers/iio/adc/max9611.c
+++ b/drivers/iio/adc/max9611.c
@@ -460,7 +460,6 @@ static const struct attribute_group max9611_attribute_group = {
 };
 
 static const struct iio_info indio_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= max9611_read_raw,
 	.attrs		= &max9611_attribute_group,
 };
@@ -573,7 +572,6 @@ static int max9611_probe(struct i2c_client *client,
 static struct i2c_driver max9611_driver = {
 	.driver = {
 		   .name = DRIVER_NAME,
-		   .owner = THIS_MODULE,
 		   .of_match_table = max9611_of_table,
 	},
 	.probe = max9611_probe,
diff --git a/drivers/iio/adc/mcp320x.c b/drivers/iio/adc/mcp320x.c
index 634717ae12f3..a04856d8afdb 100644
--- a/drivers/iio/adc/mcp320x.c
+++ b/drivers/iio/adc/mcp320x.c
@@ -17,6 +17,13 @@
  * MCP3204
  * MCP3208
  * ------------
+ * 13 bit converter
+ * MCP3301
+ * ------------
+ * 22 bit converter
+ * MCP3550
+ * MCP3551
+ * MCP3553
  *
  * Datasheet can be found here:
  * http://ww1.microchip.com/downloads/en/DeviceDoc/21293C.pdf  mcp3001
@@ -26,6 +33,7 @@
  * http://ww1.microchip.com/downloads/en/DeviceDoc/21034D.pdf  mcp3202
  * http://ww1.microchip.com/downloads/en/DeviceDoc/21298c.pdf  mcp3204/08
  * http://ww1.microchip.com/downloads/en/DeviceDoc/21700E.pdf  mcp3301
+ * http://ww1.microchip.com/downloads/en/DeviceDoc/21950D.pdf  mcp3550/1/3
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -49,25 +57,45 @@ enum {
 	mcp3204,
 	mcp3208,
 	mcp3301,
+	mcp3550_50,
+	mcp3550_60,
+	mcp3551,
+	mcp3553,
 };
 
 struct mcp320x_chip_info {
 	const struct iio_chan_spec *channels;
 	unsigned int num_channels;
 	unsigned int resolution;
+	unsigned int conv_time; /* usec */
 };
 
+/**
+ * struct mcp320x - Microchip SPI ADC instance
+ * @spi: SPI slave (parent of the IIO device)
+ * @msg: SPI message to select a channel and receive a value from the ADC
+ * @transfer: SPI transfers used by @msg
+ * @start_conv_msg: SPI message to start a conversion by briefly asserting CS
+ * @start_conv_transfer: SPI transfer used by @start_conv_msg
+ * @reg: regulator generating Vref
+ * @lock: protects read sequences
+ * @chip_info: ADC properties
+ * @tx_buf: buffer for @transfer[0] (not used on single-channel converters)
+ * @rx_buf: buffer for @transfer[1]
+ */
 struct mcp320x {
 	struct spi_device *spi;
 	struct spi_message msg;
 	struct spi_transfer transfer[2];
+	struct spi_message start_conv_msg;
+	struct spi_transfer start_conv_transfer;
 
 	struct regulator *reg;
 	struct mutex lock;
 	const struct mcp320x_chip_info *chip_info;
 
 	u8 tx_buf ____cacheline_aligned;
-	u8 rx_buf[2];
+	u8 rx_buf[4];
 };
 
 static int mcp320x_channel_to_tx_data(int device_index,
@@ -76,10 +104,6 @@ static int mcp320x_channel_to_tx_data(int device_index,
 	int start_bit = 1;
 
 	switch (device_index) {
-	case mcp3001:
-	case mcp3201:
-	case mcp3301:
-		return 0;
 	case mcp3002:
 	case mcp3202:
 		return ((start_bit << 4) | (!differential << 3) |
@@ -96,40 +120,74 @@ static int mcp320x_channel_to_tx_data(int device_index,
 }
 
 static int mcp320x_adc_conversion(struct mcp320x *adc, u8 channel,
-				  bool differential, int device_index)
+				  bool differential, int device_index, int *val)
 {
 	int ret;
 
-	adc->rx_buf[0] = 0;
-	adc->rx_buf[1] = 0;
-	adc->tx_buf = mcp320x_channel_to_tx_data(device_index,
-						channel, differential);
-
-	if (device_index != mcp3001 && device_index != mcp3201 && device_index != mcp3301) {
-		ret = spi_sync(adc->spi, &adc->msg);
-		if (ret < 0)
-			return ret;
-	} else {
-		ret = spi_read(adc->spi, &adc->rx_buf, sizeof(adc->rx_buf));
+	if (adc->chip_info->conv_time) {
+		ret = spi_sync(adc->spi, &adc->start_conv_msg);
 		if (ret < 0)
 			return ret;
+
+		usleep_range(adc->chip_info->conv_time,
+			     adc->chip_info->conv_time + 100);
 	}
 
+	memset(&adc->rx_buf, 0, sizeof(adc->rx_buf));
+	if (adc->chip_info->num_channels > 1)
+		adc->tx_buf = mcp320x_channel_to_tx_data(device_index, channel,
+							 differential);
+
+	ret = spi_sync(adc->spi, &adc->msg);
+	if (ret < 0)
+		return ret;
+
 	switch (device_index) {
 	case mcp3001:
-		return (adc->rx_buf[0] << 5 | adc->rx_buf[1] >> 3);
+		*val = (adc->rx_buf[0] << 5 | adc->rx_buf[1] >> 3);
+		return 0;
 	case mcp3002:
 	case mcp3004:
 	case mcp3008:
-		return (adc->rx_buf[0] << 2 | adc->rx_buf[1] >> 6);
+		*val = (adc->rx_buf[0] << 2 | adc->rx_buf[1] >> 6);
+		return 0;
 	case mcp3201:
-		return (adc->rx_buf[0] << 7 | adc->rx_buf[1] >> 1);
+		*val = (adc->rx_buf[0] << 7 | adc->rx_buf[1] >> 1);
+		return 0;
 	case mcp3202:
 	case mcp3204:
 	case mcp3208:
-		return (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+		*val = (adc->rx_buf[0] << 4 | adc->rx_buf[1] >> 4);
+		return 0;
 	case mcp3301:
-		return sign_extend32((adc->rx_buf[0] & 0x1f) << 8 | adc->rx_buf[1], 12);
+		*val = sign_extend32((adc->rx_buf[0] & 0x1f) << 8
+				    | adc->rx_buf[1], 12);
+		return 0;
+	case mcp3550_50:
+	case mcp3550_60:
+	case mcp3551:
+	case mcp3553: {
+		u32 raw = be32_to_cpup((u32 *)adc->rx_buf);
+
+		if (!(adc->spi->mode & SPI_CPOL))
+			raw <<= 1; /* strip Data Ready bit in SPI mode 0,0 */
+
+		/*
+		 * If the input is within -vref and vref, bit 21 is the sign.
+		 * Up to 12% overrange or underrange are allowed, in which case
+		 * bit 23 is the sign and bit 0 to 21 is the value.
+		 */
+		raw >>= 8;
+		if (raw & BIT(22) && raw & BIT(23))
+			return -EIO; /* cannot have overrange AND underrange */
+		else if (raw & BIT(22))
+			raw &= ~BIT(22); /* overrange */
+		else if (raw & BIT(23) || raw & BIT(21))
+			raw |= GENMASK(31, 22); /* underrange or negative */
+
+		*val = (s32)raw;
+		return 0;
+		}
 	default:
 		return -EINVAL;
 	}
@@ -150,12 +208,10 @@ static int mcp320x_read_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
 		ret = mcp320x_adc_conversion(adc, channel->address,
-			channel->differential, device_index);
-
+			channel->differential, device_index, val);
 		if (ret < 0)
 			goto out;
 
-		*val = ret;
 		ret = IIO_VAL_INT;
 		break;
 
@@ -242,7 +298,6 @@ static const struct iio_chan_spec mcp3208_channels[] = {
 
 static const struct iio_info mcp320x_info = {
 	.read_raw = mcp320x_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct mcp320x_chip_info mcp320x_chip_infos[] = {
@@ -291,6 +346,31 @@ static const struct mcp320x_chip_info mcp320x_chip_infos[] = {
 		.num_channels = ARRAY_SIZE(mcp3201_channels),
 		.resolution = 13
 	},
+	[mcp3550_50] = {
+		.channels = mcp3201_channels,
+		.num_channels = ARRAY_SIZE(mcp3201_channels),
+		.resolution = 21,
+		/* 2% max deviation + 144 clock periods to exit shutdown */
+		.conv_time = 80000 * 1.02 + 144000 / 102.4,
+	},
+	[mcp3550_60] = {
+		.channels = mcp3201_channels,
+		.num_channels = ARRAY_SIZE(mcp3201_channels),
+		.resolution = 21,
+		.conv_time = 66670 * 1.02 + 144000 / 122.88,
+	},
+	[mcp3551] = {
+		.channels = mcp3201_channels,
+		.num_channels = ARRAY_SIZE(mcp3201_channels),
+		.resolution = 21,
+		.conv_time = 73100 * 1.02 + 144000 / 112.64,
+	},
+	[mcp3553] = {
+		.channels = mcp3201_channels,
+		.num_channels = ARRAY_SIZE(mcp3201_channels),
+		.resolution = 21,
+		.conv_time = 16670 * 1.02 + 144000 / 122.88,
+	},
 };
 
 static int mcp320x_probe(struct spi_device *spi)
@@ -298,7 +378,7 @@ static int mcp320x_probe(struct spi_device *spi)
 	struct iio_dev *indio_dev;
 	struct mcp320x *adc;
 	const struct mcp320x_chip_info *chip_info;
-	int ret;
+	int ret, device_index;
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adc));
 	if (!indio_dev)
@@ -312,8 +392,10 @@ static int mcp320x_probe(struct spi_device *spi)
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &mcp320x_info;
+	spi_set_drvdata(spi, indio_dev);
 
-	chip_info = &mcp320x_chip_infos[spi_get_device_id(spi)->driver_data];
+	device_index = spi_get_device_id(spi)->driver_data;
+	chip_info = &mcp320x_chip_infos[device_index];
 	indio_dev->channels = chip_info->channels;
 	indio_dev->num_channels = chip_info->num_channels;
 
@@ -322,10 +404,41 @@ static int mcp320x_probe(struct spi_device *spi)
 	adc->transfer[0].tx_buf = &adc->tx_buf;
 	adc->transfer[0].len = sizeof(adc->tx_buf);
 	adc->transfer[1].rx_buf = adc->rx_buf;
-	adc->transfer[1].len = sizeof(adc->rx_buf);
+	adc->transfer[1].len = DIV_ROUND_UP(chip_info->resolution, 8);
 
-	spi_message_init_with_transfers(&adc->msg, adc->transfer,
-					ARRAY_SIZE(adc->transfer));
+	if (chip_info->num_channels == 1)
+		/* single-channel converters are rx only (no MOSI pin) */
+		spi_message_init_with_transfers(&adc->msg,
+						&adc->transfer[1], 1);
+	else
+		spi_message_init_with_transfers(&adc->msg, adc->transfer,
+						ARRAY_SIZE(adc->transfer));
+
+	switch (device_index) {
+	case mcp3550_50:
+	case mcp3550_60:
+	case mcp3551:
+	case mcp3553:
+		/* rx len increases from 24 to 25 bit in SPI mode 0,0 */
+		if (!(spi->mode & SPI_CPOL))
+			adc->transfer[1].len++;
+
+		/* conversions are started by asserting CS pin for 8 usec */
+		adc->start_conv_transfer.delay_usecs = 8;
+		spi_message_init_with_transfers(&adc->start_conv_msg,
+						&adc->start_conv_transfer, 1);
+
+		/*
+		 * If CS was previously kept low (continuous conversion mode)
+		 * and then changed to high, the chip is in shutdown.
+		 * Sometimes it fails to wake from shutdown and clocks out
+		 * only 0xffffff.  The magic sequence of performing two
+		 * conversions without delay between them resets the chip
+		 * and ensures all subsequent conversions succeed.
+		 */
+		mcp320x_adc_conversion(adc, 0, 1, device_index, &ret);
+		mcp320x_adc_conversion(adc, 0, 1, device_index, &ret);
+	}
 
 	adc->reg = devm_regulator_get(&spi->dev, "vref");
 	if (IS_ERR(adc->reg))
@@ -363,62 +476,29 @@ static int mcp320x_remove(struct spi_device *spi)
 #if defined(CONFIG_OF)
 static const struct of_device_id mcp320x_dt_ids[] = {
 	/* NOTE: The use of compatibles with no vendor prefix is deprecated. */
-	{
-		.compatible = "mcp3001",
-		.data = &mcp320x_chip_infos[mcp3001],
-	}, {
-		.compatible = "mcp3002",
-		.data = &mcp320x_chip_infos[mcp3002],
-	}, {
-		.compatible = "mcp3004",
-		.data = &mcp320x_chip_infos[mcp3004],
-	}, {
-		.compatible = "mcp3008",
-		.data = &mcp320x_chip_infos[mcp3008],
-	}, {
-		.compatible = "mcp3201",
-		.data = &mcp320x_chip_infos[mcp3201],
-	}, {
-		.compatible = "mcp3202",
-		.data = &mcp320x_chip_infos[mcp3202],
-	}, {
-		.compatible = "mcp3204",
-		.data = &mcp320x_chip_infos[mcp3204],
-	}, {
-		.compatible = "mcp3208",
-		.data = &mcp320x_chip_infos[mcp3208],
-	}, {
-		.compatible = "mcp3301",
-		.data = &mcp320x_chip_infos[mcp3301],
-	}, {
-		.compatible = "microchip,mcp3001",
-		.data = &mcp320x_chip_infos[mcp3001],
-	}, {
-		.compatible = "microchip,mcp3002",
-		.data = &mcp320x_chip_infos[mcp3002],
-	}, {
-		.compatible = "microchip,mcp3004",
-		.data = &mcp320x_chip_infos[mcp3004],
-	}, {
-		.compatible = "microchip,mcp3008",
-		.data = &mcp320x_chip_infos[mcp3008],
-	}, {
-		.compatible = "microchip,mcp3201",
-		.data = &mcp320x_chip_infos[mcp3201],
-	}, {
-		.compatible = "microchip,mcp3202",
-		.data = &mcp320x_chip_infos[mcp3202],
-	}, {
-		.compatible = "microchip,mcp3204",
-		.data = &mcp320x_chip_infos[mcp3204],
-	}, {
-		.compatible = "microchip,mcp3208",
-		.data = &mcp320x_chip_infos[mcp3208],
-	}, {
-		.compatible = "microchip,mcp3301",
-		.data = &mcp320x_chip_infos[mcp3301],
-	}, {
-	}
+	{ .compatible = "mcp3001" },
+	{ .compatible = "mcp3002" },
+	{ .compatible = "mcp3004" },
+	{ .compatible = "mcp3008" },
+	{ .compatible = "mcp3201" },
+	{ .compatible = "mcp3202" },
+	{ .compatible = "mcp3204" },
+	{ .compatible = "mcp3208" },
+	{ .compatible = "mcp3301" },
+	{ .compatible = "microchip,mcp3001" },
+	{ .compatible = "microchip,mcp3002" },
+	{ .compatible = "microchip,mcp3004" },
+	{ .compatible = "microchip,mcp3008" },
+	{ .compatible = "microchip,mcp3201" },
+	{ .compatible = "microchip,mcp3202" },
+	{ .compatible = "microchip,mcp3204" },
+	{ .compatible = "microchip,mcp3208" },
+	{ .compatible = "microchip,mcp3301" },
+	{ .compatible = "microchip,mcp3550-50" },
+	{ .compatible = "microchip,mcp3550-60" },
+	{ .compatible = "microchip,mcp3551" },
+	{ .compatible = "microchip,mcp3553" },
+	{ }
 };
 MODULE_DEVICE_TABLE(of, mcp320x_dt_ids);
 #endif
@@ -433,6 +513,10 @@ static const struct spi_device_id mcp320x_id[] = {
 	{ "mcp3204", mcp3204 },
 	{ "mcp3208", mcp3208 },
 	{ "mcp3301", mcp3301 },
+	{ "mcp3550-50", mcp3550_50 },
+	{ "mcp3550-60", mcp3550_60 },
+	{ "mcp3551", mcp3551 },
+	{ "mcp3553", mcp3553 },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, mcp320x_id);
@@ -449,5 +533,5 @@ static struct spi_driver mcp320x_driver = {
 module_spi_driver(mcp320x_driver);
 
 MODULE_AUTHOR("Oskar Andero <oskar.andero@gmail.com>");
-MODULE_DESCRIPTION("Microchip Technology MCP3x01/02/04/08");
+MODULE_DESCRIPTION("Microchip Technology MCP3x01/02/04/08 and MCP3550/1/3");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index 63de705086ed..819f26011500 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -327,7 +327,6 @@ static const struct iio_info mcp3422_info = {
 	.write_raw = mcp3422_write_raw,
 	.write_raw_get_fmt = mcp3422_write_raw_get_fmt,
 	.attrs = &mcp3422_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int mcp3422_probe(struct i2c_client *client,
diff --git a/drivers/iio/adc/men_z188_adc.c b/drivers/iio/adc/men_z188_adc.c
index 8f3606de4eaf..c80261748d8f 100644
--- a/drivers/iio/adc/men_z188_adc.c
+++ b/drivers/iio/adc/men_z188_adc.c
@@ -80,7 +80,6 @@ static int z188_iio_read_raw(struct iio_dev *iio_dev,
 
 static const struct iio_info z188_adc_info = {
 	.read_raw = &z188_iio_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static void men_z188_config_channels(void __iomem *addr)
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 2e8dbb89c8c9..9c6932ffc0af 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -840,7 +840,6 @@ out:
 
 static const struct iio_info meson_sar_adc_iio_info = {
 	.read_raw = meson_sar_adc_iio_info_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct meson_sar_adc_data meson_sar_adc_meson8_data = {
diff --git a/drivers/iio/adc/mt6577_auxadc.c b/drivers/iio/adc/mt6577_auxadc.c
index 414cf44bf19d..95d76abb64ec 100644
--- a/drivers/iio/adc/mt6577_auxadc.c
+++ b/drivers/iio/adc/mt6577_auxadc.c
@@ -180,7 +180,6 @@ static int mt6577_auxadc_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info mt6577_auxadc_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &mt6577_auxadc_read_raw,
 };
 
@@ -306,6 +305,7 @@ static SIMPLE_DEV_PM_OPS(mt6577_auxadc_pm_ops,
 
 static const struct of_device_id mt6577_auxadc_of_match[] = {
 	{ .compatible = "mediatek,mt2701-auxadc", },
+	{ .compatible = "mediatek,mt2712-auxadc", },
 	{ .compatible = "mediatek,mt7622-auxadc", },
 	{ .compatible = "mediatek,mt8173-auxadc", },
 	{ }
diff --git a/drivers/iio/adc/mxs-lradc-adc.c b/drivers/iio/adc/mxs-lradc-adc.c
index d32b34638c2f..c627513d9f0f 100644
--- a/drivers/iio/adc/mxs-lradc-adc.c
+++ b/drivers/iio/adc/mxs-lradc-adc.c
@@ -382,7 +382,6 @@ static const struct attribute_group mxs_lradc_adc_attribute_group = {
 };
 
 static const struct iio_info mxs_lradc_adc_iio_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= mxs_lradc_adc_read_raw,
 	.write_raw		= mxs_lradc_adc_write_raw,
 	.write_raw_get_fmt	= mxs_lradc_adc_write_raw_get_fmt,
@@ -455,7 +454,6 @@ static int mxs_lradc_adc_configure_trigger(struct iio_trigger *trig, bool state)
 }
 
 static const struct iio_trigger_ops mxs_lradc_adc_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &mxs_lradc_adc_configure_trigger,
 };
 
diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c
index 08f446695f97..8997e74a8847 100644
--- a/drivers/iio/adc/nau7802.c
+++ b/drivers/iio/adc/nau7802.c
@@ -402,7 +402,6 @@ static int nau7802_write_raw_get_fmt(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info nau7802_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &nau7802_read_raw,
 	.write_raw = &nau7802_write_raw,
 	.write_raw_get_fmt = nau7802_write_raw_get_fmt,
diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c
index 7d61b566e148..69b9affeef1e 100644
--- a/drivers/iio/adc/palmas_gpadc.c
+++ b/drivers/iio/adc/palmas_gpadc.c
@@ -430,7 +430,6 @@ out:
 
 static const struct iio_info palmas_gpadc_iio_info = {
 	.read_raw = palmas_gpadc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define PALMAS_ADC_CHAN_IIO(chan, _type, chan_info)	\
diff --git a/drivers/iio/adc/qcom-pm8xxx-xoadc.c b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
index cea8f1fb444a..b093ecddf1a8 100644
--- a/drivers/iio/adc/qcom-pm8xxx-xoadc.c
+++ b/drivers/iio/adc/qcom-pm8xxx-xoadc.c
@@ -728,7 +728,6 @@ static int pm8xxx_of_xlate(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info pm8xxx_xoadc_info = {
-	.driver_module = THIS_MODULE,
 	.of_xlate = pm8xxx_of_xlate,
 	.read_raw = pm8xxx_read_raw,
 };
diff --git a/drivers/iio/adc/qcom-spmi-iadc.c b/drivers/iio/adc/qcom-spmi-iadc.c
index fabd24edc2a1..3f062cd61aba 100644
--- a/drivers/iio/adc/qcom-spmi-iadc.c
+++ b/drivers/iio/adc/qcom-spmi-iadc.c
@@ -356,7 +356,6 @@ static int iadc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info iadc_info = {
 	.read_raw = iadc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t iadc_isr(int irq, void *dev_id)
diff --git a/drivers/iio/adc/qcom-spmi-vadc.c b/drivers/iio/adc/qcom-spmi-vadc.c
index 9e600bfd1765..3680e0d47412 100644
--- a/drivers/iio/adc/qcom-spmi-vadc.c
+++ b/drivers/iio/adc/qcom-spmi-vadc.c
@@ -506,7 +506,6 @@ static int vadc_of_xlate(struct iio_dev *indio_dev,
 static const struct iio_info vadc_info = {
 	.read_raw = vadc_read_raw,
 	.of_xlate = vadc_of_xlate,
-	.driver_module = THIS_MODULE,
 };
 
 struct vadc_channels {
diff --git a/drivers/iio/adc/qcom-vadc-common.c b/drivers/iio/adc/qcom-vadc-common.c
index 102fc51b10aa..47d24ae5462f 100644
--- a/drivers/iio/adc/qcom-vadc-common.c
+++ b/drivers/iio/adc/qcom-vadc-common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 #include <linux/kernel.h>
 #include <linux/bitops.h>
diff --git a/drivers/iio/adc/qcom-vadc-common.h b/drivers/iio/adc/qcom-vadc-common.h
index 63c872a70adc..1d5354ff5c72 100644
--- a/drivers/iio/adc/qcom-vadc-common.h
+++ b/drivers/iio/adc/qcom-vadc-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Code shared between the different Qualcomm PMIC voltage ADCs
  */
diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c
index 27a318164619..dcb50172186f 100644
--- a/drivers/iio/adc/rcar-gyroadc.c
+++ b/drivers/iio/adc/rcar-gyroadc.c
@@ -277,7 +277,6 @@ static int rcar_gyroadc_reg_access(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info rcar_gyroadc_iio_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= rcar_gyroadc_read_raw,
 	.debugfs_reg_access	= rcar_gyroadc_reg_access,
 };
@@ -349,7 +348,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev)
 			continue;
 		}
 
-		childmode = (unsigned int)of_id->data;
+		childmode = (uintptr_t)of_id->data;
 		switch (childmode) {
 		case RCAR_GYROADC_MODE_SELECT_1_MB88101A:
 			sample_width = 12;
@@ -488,8 +487,6 @@ err:
 
 static int rcar_gyroadc_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *of_id =
-		of_match_device(rcar_gyroadc_match, &pdev->dev);
 	struct device *dev = &pdev->dev;
 	struct rcar_gyroadc *priv;
 	struct iio_dev *indio_dev;
@@ -526,7 +523,8 @@ static int rcar_gyroadc_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	priv->model = (enum rcar_gyroadc_model)of_id->data;
+	priv->model = (enum rcar_gyroadc_model)
+		of_device_get_match_data(&pdev->dev);
 
 	platform_set_drvdata(pdev, indio_dev);
 
diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
index 5f612d694b33..1f98566d5b3c 100644
--- a/drivers/iio/adc/rockchip_saradc.c
+++ b/drivers/iio/adc/rockchip_saradc.c
@@ -125,7 +125,6 @@ static irqreturn_t rockchip_saradc_isr(int irq, void *dev_id)
 
 static const struct iio_info rockchip_saradc_iio_info = {
 	.read_raw = rockchip_saradc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define ADC_CHANNEL(_index, _id) {				\
diff --git a/drivers/iio/adc/spear_adc.c b/drivers/iio/adc/spear_adc.c
index 5dd61f6a57b9..b1da2c46107c 100644
--- a/drivers/iio/adc/spear_adc.c
+++ b/drivers/iio/adc/spear_adc.c
@@ -254,7 +254,6 @@ static int spear_adc_configure(struct spear_adc_state *st)
 static const struct iio_info spear_adc_info = {
 	.read_raw = &spear_adc_read_raw,
 	.write_raw = &spear_adc_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int spear_adc_probe(struct platform_device *pdev)
diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c
index 804198eb0eef..6aefef99f935 100644
--- a/drivers/iio/adc/stm32-adc-core.c
+++ b/drivers/iio/adc/stm32-adc-core.c
@@ -139,6 +139,11 @@ static int stm32f4_adc_clk_sel(struct platform_device *pdev,
 	}
 
 	rate = clk_get_rate(priv->aclk);
+	if (!rate) {
+		dev_err(&pdev->dev, "Invalid clock rate: 0\n");
+		return -EINVAL;
+	}
+
 	for (i = 0; i < ARRAY_SIZE(stm32f4_pclk_div); i++) {
 		if ((rate / stm32f4_pclk_div[i]) <= STM32F4_ADC_MAX_CLK_RATE)
 			break;
@@ -216,6 +221,10 @@ static int stm32h7_adc_clk_sel(struct platform_device *pdev,
 		 * From spec: PLL output musn't exceed max rate
 		 */
 		rate = clk_get_rate(priv->aclk);
+		if (!rate) {
+			dev_err(&pdev->dev, "Invalid adc clock rate: 0\n");
+			return -EINVAL;
+		}
 
 		for (i = 0; i < ARRAY_SIZE(stm32h7_adc_ckmodes_spec); i++) {
 			ckmode = stm32h7_adc_ckmodes_spec[i].ckmode;
@@ -232,6 +241,10 @@ static int stm32h7_adc_clk_sel(struct platform_device *pdev,
 
 	/* Synchronous clock modes (e.g. ckmode is 1, 2 or 3) */
 	rate = clk_get_rate(priv->bclk);
+	if (!rate) {
+		dev_err(&pdev->dev, "Invalid bus clock rate: 0\n");
+		return -EINVAL;
+	}
 
 	for (i = 0; i < ARRAY_SIZE(stm32h7_adc_ckmodes_spec); i++) {
 		ckmode = stm32h7_adc_ckmodes_spec[i].ckmode;
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index e3c15f88075f..c9d96f935dba 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -531,6 +531,7 @@ static struct stm32_adc_trig_info stm32h7_adc_trigs[] = {
 	{ TIM2_TRGO, STM32_EXT11 },
 	{ TIM4_TRGO, STM32_EXT12 },
 	{ TIM6_TRGO, STM32_EXT13 },
+	{ TIM15_TRGO, STM32_EXT14 },
 	{ TIM3_CH4, STM32_EXT15 },
 	{ LPTIM1_OUT, STM32_EXT18 },
 	{ LPTIM2_OUT, STM32_EXT19 },
@@ -1385,7 +1386,6 @@ static const struct iio_info stm32_adc_iio_info = {
 	.update_scan_mode = stm32_adc_update_scan_mode,
 	.debugfs_reg_access = stm32_adc_debugfs_reg_access,
 	.of_xlate = stm32_adc_of_xlate,
-	.driver_module = THIS_MODULE,
 };
 
 static unsigned int stm32_adc_dma_residue(struct stm32_adc *adc)
@@ -1666,7 +1666,7 @@ static int stm32_adc_chan_of_init(struct iio_dev *indio_dev)
 
 	num_channels = of_property_count_u32_elems(node, "st,adc-channels");
 	if (num_channels < 0 ||
-	    num_channels >= adc_info->max_channels) {
+	    num_channels > adc_info->max_channels) {
 		dev_err(&indio_dev->dev, "Bad st,adc-channels?\n");
 		return num_channels < 0 ? num_channels : -EINVAL;
 	}
diff --git a/drivers/iio/adc/stx104.c b/drivers/iio/adc/stx104.c
index 2da741d27540..17b021f33180 100644
--- a/drivers/iio/adc/stx104.c
+++ b/drivers/iio/adc/stx104.c
@@ -172,7 +172,6 @@ static int stx104_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info stx104_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = stx104_read_raw,
 	.write_raw = stx104_write_raw
 };
diff --git a/drivers/iio/adc/sun4i-gpadc-iio.c b/drivers/iio/adc/sun4i-gpadc-iio.c
index 137f577d9432..04d7147e0110 100644
--- a/drivers/iio/adc/sun4i-gpadc-iio.c
+++ b/drivers/iio/adc/sun4i-gpadc-iio.c
@@ -352,7 +352,6 @@ static int sun4i_gpadc_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info sun4i_gpadc_iio_info = {
 	.read_raw = sun4i_gpadc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t sun4i_gpadc_temp_data_irq_handler(int irq, void *dev_id)
@@ -502,17 +501,15 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
 				struct iio_dev *indio_dev)
 {
 	struct sun4i_gpadc_iio *info = iio_priv(indio_dev);
-	const struct of_device_id *of_dev;
 	struct resource *mem;
 	void __iomem *base;
 	int ret;
 
-	of_dev = of_match_device(sun4i_gpadc_of_id, &pdev->dev);
-	if (!of_dev)
+	info->data = of_device_get_match_data(&pdev->dev);
+	if (!info->data)
 		return -ENODEV;
 
 	info->no_irq = true;
-	info->data = (struct gpadc_data *)of_dev->data;
 	indio_dev->num_channels = ARRAY_SIZE(sun8i_a33_gpadc_channels);
 	indio_dev->channels = sun8i_a33_gpadc_channels;
 
@@ -529,17 +526,10 @@ static int sun4i_gpadc_probe_dt(struct platform_device *pdev,
 		return ret;
 	}
 
-	if (!IS_ENABLED(CONFIG_THERMAL_OF))
-		return 0;
+	if (IS_ENABLED(CONFIG_THERMAL_OF))
+		info->sensor_device = &pdev->dev;
 
-	info->sensor_device = &pdev->dev;
-	info->tzd = thermal_zone_of_sensor_register(info->sensor_device, 0,
-						    info, &sun4i_ts_tz_ops);
-	if (IS_ERR(info->tzd))
-		dev_err(&pdev->dev, "could not register thermal sensor: %ld\n",
-			PTR_ERR(info->tzd));
-
-	return PTR_ERR_OR_ZERO(info->tzd);
+	return 0;
 }
 
 static int sun4i_gpadc_probe_mfd(struct platform_device *pdev,
@@ -586,15 +576,6 @@ static int sun4i_gpadc_probe_mfd(struct platform_device *pdev,
 		 * return the temperature.
 		 */
 		info->sensor_device = pdev->dev.parent;
-		info->tzd = thermal_zone_of_sensor_register(info->sensor_device,
-							    0, info,
-							    &sun4i_ts_tz_ops);
-		if (IS_ERR(info->tzd)) {
-			dev_err(&pdev->dev,
-				"could not register thermal sensor: %ld\n",
-				PTR_ERR(info->tzd));
-			return PTR_ERR(info->tzd);
-		}
 	} else {
 		indio_dev->num_channels =
 			ARRAY_SIZE(sun4i_gpadc_channels_no_temp);
@@ -664,6 +645,22 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
+	if (IS_ENABLED(CONFIG_THERMAL_OF)) {
+		info->tzd = thermal_zone_of_sensor_register(info->sensor_device,
+							    0, info,
+							    &sun4i_ts_tz_ops);
+		/*
+		 * Do not fail driver probing when failing to register in
+		 * thermal because no thermal DT node is found.
+		 */
+		if (IS_ERR(info->tzd) && PTR_ERR(info->tzd) != -ENODEV) {
+			dev_err(&pdev->dev,
+				"could not register thermal sensor: %ld\n",
+				PTR_ERR(info->tzd));
+			return PTR_ERR(info->tzd);
+		}
+	}
+
 	ret = devm_iio_device_register(&pdev->dev, indio_dev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "could not register the device\n");
diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index 319172cf7da8..405e3779c0c5 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -124,7 +124,6 @@ static struct adcxx1c_model adcxx1c_models[] = {
 
 static const struct iio_info adc081c_info = {
 	.read_raw = adc081c_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t adc081c_trigger_handler(int irq, void *p)
diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c
index e952e94a14af..188dae705bf7 100644
--- a/drivers/iio/adc/ti-adc0832.c
+++ b/drivers/iio/adc/ti-adc0832.c
@@ -195,7 +195,6 @@ static int adc0832_read_raw(struct iio_dev *iio,
 
 static const struct iio_info adc0832_info = {
 	.read_raw = adc0832_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t adc0832_trigger_handler(int irq, void *p)
diff --git a/drivers/iio/adc/ti-adc084s021.c b/drivers/iio/adc/ti-adc084s021.c
index a355121c11a4..25504640e126 100644
--- a/drivers/iio/adc/ti-adc084s021.c
+++ b/drivers/iio/adc/ti-adc084s021.c
@@ -186,7 +186,6 @@ static int adc084s021_buffer_postdisable(struct iio_dev *indio_dev)
 
 static const struct iio_info adc084s021_info = {
 	.read_raw = adc084s021_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_buffer_setup_ops adc084s021_buffer_setup_ops = {
diff --git a/drivers/iio/adc/ti-adc108s102.c b/drivers/iio/adc/ti-adc108s102.c
index de4e5ac98c6e..841203edaac5 100644
--- a/drivers/iio/adc/ti-adc108s102.c
+++ b/drivers/iio/adc/ti-adc108s102.c
@@ -220,7 +220,6 @@ static int adc108s102_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info adc108s102_info = {
 	.read_raw		= &adc108s102_read_raw,
 	.update_scan_mode	= &adc108s102_update_scan_mode,
-	.driver_module		= THIS_MODULE,
 };
 
 static int adc108s102_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c
index 072f03bfe6a0..703d68ae96b7 100644
--- a/drivers/iio/adc/ti-adc12138.c
+++ b/drivers/iio/adc/ti-adc12138.c
@@ -164,7 +164,7 @@ static int __adc12138_start_conv(struct adc12138 *adc,
 				 void *data, int len)
 
 {
-	const u8 ch_to_mux[] = { 0, 4, 1, 5, 2, 6, 3, 7 };
+	static const u8 ch_to_mux[] = { 0, 4, 1, 5, 2, 6, 3, 7 };
 	u8 mode = (ch_to_mux[channel->channel] << 4) |
 		  (channel->differential ? 0 : 0x80);
 
@@ -277,7 +277,6 @@ static int adc12138_read_raw(struct iio_dev *iio,
 
 static const struct iio_info adc12138_info = {
 	.read_raw = adc12138_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int adc12138_init(struct adc12138 *adc)
diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
index 89dfbd31be5c..7cf39b3e2416 100644
--- a/drivers/iio/adc/ti-adc128s052.c
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -130,7 +130,6 @@ static const struct adc128_configuration adc128_config[] = {
 
 static const struct iio_info adc128_info = {
 	.read_raw = adc128_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int adc128_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ti-adc161s626.c b/drivers/iio/adc/ti-adc161s626.c
index 4836a0d7aef5..10fa7677ac4b 100644
--- a/drivers/iio/adc/ti-adc161s626.c
+++ b/drivers/iio/adc/ti-adc161s626.c
@@ -173,7 +173,6 @@ static int ti_adc_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info ti_adc_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = ti_adc_read_raw,
 };
 
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c
index d1210024f6bc..6a114dcb4a3a 100644
--- a/drivers/iio/adc/ti-ads1015.c
+++ b/drivers/iio/adc/ti-ads1015.c
@@ -52,7 +52,7 @@
 
 #define ADS1015_CFG_COMP_QUE_MASK	GENMASK(1, 0)
 #define ADS1015_CFG_COMP_LAT_MASK	BIT(2)
-#define ADS1015_CFG_COMP_POL_MASK	BIT(2)
+#define ADS1015_CFG_COMP_POL_MASK	BIT(3)
 #define ADS1015_CFG_COMP_MODE_MASK	BIT(4)
 #define ADS1015_CFG_DR_MASK	GENMASK(7, 5)
 #define ADS1015_CFG_MOD_MASK	BIT(8)
@@ -332,7 +332,7 @@ static int ads1015_set_power_state(struct ads1015_data *data, bool on)
 static
 int ads1015_get_adc_result(struct ads1015_data *data, int chan, int *val)
 {
-	int ret, pga, dr, conv_time;
+	int ret, pga, dr, dr_old, conv_time;
 	unsigned int old, mask, cfg;
 
 	if (chan < 0 || chan >= ADS1015_CHANNELS)
@@ -358,17 +358,17 @@ int ads1015_get_adc_result(struct ads1015_data *data, int chan, int *val)
 	}
 
 	cfg = (old & ~mask) | (cfg & mask);
-
-	ret = regmap_write(data->regmap, ADS1015_CFG_REG, cfg);
-	if (ret)
-		return ret;
-
-	if (old != cfg || data->conv_invalid) {
-		int dr_old = (old & ADS1015_CFG_DR_MASK) >>
-				ADS1015_CFG_DR_SHIFT;
-
+	if (old != cfg) {
+		ret = regmap_write(data->regmap, ADS1015_CFG_REG, cfg);
+		if (ret)
+			return ret;
+		data->conv_invalid = true;
+	}
+	if (data->conv_invalid) {
+		dr_old = (old & ADS1015_CFG_DR_MASK) >> ADS1015_CFG_DR_SHIFT;
 		conv_time = DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr_old]);
 		conv_time += DIV_ROUND_UP(USEC_PER_SEC, data->data_rate[dr]);
+		conv_time += conv_time / 10; /* 10% internal clock inaccuracy */
 		usleep_range(conv_time, conv_time + 1);
 		data->conv_invalid = false;
 	}
@@ -821,7 +821,6 @@ static const struct attribute_group ads1115_attribute_group = {
 };
 
 static const struct iio_info ads1015_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= ads1015_read_raw,
 	.write_raw	= ads1015_write_raw,
 	.read_event_value = ads1015_read_event,
@@ -832,7 +831,6 @@ static const struct iio_info ads1015_info = {
 };
 
 static const struct iio_info ads1115_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= ads1015_read_raw,
 	.write_raw	= ads1015_write_raw,
 	.read_event_value = ads1015_read_event,
@@ -1017,10 +1015,12 @@ static int ads1015_probe(struct i2c_client *client,
 
 		switch (irq_trig) {
 		case IRQF_TRIGGER_LOW:
-			cfg_comp |= ADS1015_CFG_COMP_POL_LOW;
+			cfg_comp |= ADS1015_CFG_COMP_POL_LOW <<
+					ADS1015_CFG_COMP_POL_SHIFT;
 			break;
 		case IRQF_TRIGGER_HIGH:
-			cfg_comp |= ADS1015_CFG_COMP_POL_HIGH;
+			cfg_comp |= ADS1015_CFG_COMP_POL_HIGH <<
+					ADS1015_CFG_COMP_POL_SHIFT;
 			break;
 		default:
 			return -EINVAL;
diff --git a/drivers/iio/adc/ti-ads7950.c b/drivers/iio/adc/ti-ads7950.c
index a376190914ad..0225c1b333ab 100644
--- a/drivers/iio/adc/ti-ads7950.c
+++ b/drivers/iio/adc/ti-ads7950.c
@@ -372,7 +372,6 @@ static int ti_ads7950_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info ti_ads7950_info = {
 	.read_raw		= &ti_ads7950_read_raw,
 	.update_scan_mode	= ti_ads7950_update_scan_mode,
-	.driver_module		= THIS_MODULE,
 };
 
 static int ti_ads7950_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ti-ads8688.c b/drivers/iio/adc/ti-ads8688.c
index 4a163496d9e4..079f133144b0 100644
--- a/drivers/iio/adc/ti-ads8688.c
+++ b/drivers/iio/adc/ti-ads8688.c
@@ -369,7 +369,6 @@ static const struct iio_info ads8688_info = {
 	.write_raw = &ads8688_write_raw,
 	.write_raw_get_fmt = &ads8688_write_raw_get_fmt,
 	.attrs = &ads8688_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct ads8688_chip_info ads8688_chip_info_tbl[] = {
@@ -474,7 +473,6 @@ MODULE_DEVICE_TABLE(of, ads8688_of_match);
 static struct spi_driver ads8688_driver = {
 	.driver = {
 		.name	= "ads8688",
-		.owner	= THIS_MODULE,
 	},
 	.probe		= ads8688_probe,
 	.remove		= ads8688_remove,
diff --git a/drivers/iio/adc/ti-tlc4541.c b/drivers/iio/adc/ti-tlc4541.c
index 78d91a069ea4..2290024c89fc 100644
--- a/drivers/iio/adc/ti-tlc4541.c
+++ b/drivers/iio/adc/ti-tlc4541.c
@@ -157,7 +157,6 @@ static int tlc4541_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info tlc4541_info = {
 	.read_raw = &tlc4541_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int tlc4541_probe(struct spi_device *spi)
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 6cbed7eb118a..b3e573cc6f5f 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -533,7 +533,6 @@ err_unlock:
 
 static const struct iio_info tiadc_info = {
 	.read_raw = &tiadc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int tiadc_request_dma(struct platform_device *pdev,
diff --git a/drivers/iio/adc/twl4030-madc.c b/drivers/iio/adc/twl4030-madc.c
index 1edd99f0c5e5..8c019bb6625f 100644
--- a/drivers/iio/adc/twl4030-madc.c
+++ b/drivers/iio/adc/twl4030-madc.c
@@ -212,7 +212,6 @@ static int twl4030_madc_read(struct iio_dev *iio_dev,
 
 static const struct iio_info twl4030_madc_iio_info = {
 	.read_raw = &twl4030_madc_read,
-	.driver_module = THIS_MODULE,
 };
 
 #define TWL4030_ADC_CHANNEL(_channel, _type, _name) {	\
@@ -887,21 +886,27 @@ static int twl4030_madc_probe(struct platform_device *pdev)
 
 	/* Enable 3v1 bias regulator for MADC[3:6] */
 	madc->usb3v1 = devm_regulator_get(madc->dev, "vusb3v1");
-	if (IS_ERR(madc->usb3v1))
-		return -ENODEV;
+	if (IS_ERR(madc->usb3v1)) {
+		ret = -ENODEV;
+		goto err_i2c;
+	}
 
 	ret = regulator_enable(madc->usb3v1);
-	if (ret)
+	if (ret) {
 		dev_err(madc->dev, "could not enable 3v1 bias regulator\n");
+		goto err_i2c;
+	}
 
 	ret = iio_device_register(iio_dev);
 	if (ret) {
 		dev_err(&pdev->dev, "could not register iio device\n");
-		goto err_i2c;
+		goto err_usb3v1;
 	}
 
 	return 0;
 
+err_usb3v1:
+	regulator_disable(madc->usb3v1);
 err_i2c:
 	twl4030_madc_set_current_generator(madc, 0, 0);
 err_current_generator:
diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index bc0e60b9da45..dc83f8f6c3d3 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -843,7 +843,6 @@ static const struct iio_chan_spec twl6032_gpadc_iio_channels[] = {
 
 static const struct iio_info twl6030_gpadc_iio_info = {
 	.read_raw = &twl6030_gpadc_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct twl6030_gpadc_platform_data twl6030_pdata = {
diff --git a/drivers/iio/adc/vf610_adc.c b/drivers/iio/adc/vf610_adc.c
index c168e0db329a..bbcb7a4d7edf 100644
--- a/drivers/iio/adc/vf610_adc.c
+++ b/drivers/iio/adc/vf610_adc.c
@@ -799,7 +799,6 @@ static int vf610_adc_reg_access(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info vf610_adc_iio_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &vf610_read_raw,
 	.write_raw = &vf610_write_raw,
 	.debugfs_reg_access = &vf610_adc_reg_access,
diff --git a/drivers/iio/adc/viperboard_adc.c b/drivers/iio/adc/viperboard_adc.c
index 3be2e35721cc..53eb5a4136fe 100644
--- a/drivers/iio/adc/viperboard_adc.c
+++ b/drivers/iio/adc/viperboard_adc.c
@@ -107,7 +107,6 @@ error:
 
 static const struct iio_info vprbrd_adc_iio_info = {
 	.read_raw = &vprbrd_iio_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int vprbrd_adc_probe(struct platform_device *pdev)
diff --git a/drivers/iio/adc/xilinx-xadc-core.c b/drivers/iio/adc/xilinx-xadc-core.c
index 4a60497a1f19..d4f21d1be6c8 100644
--- a/drivers/iio/adc/xilinx-xadc-core.c
+++ b/drivers/iio/adc/xilinx-xadc-core.c
@@ -675,7 +675,6 @@ err_out:
 }
 
 static const struct iio_trigger_ops xadc_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &xadc_trigger_set_state,
 };
 
@@ -1028,7 +1027,6 @@ static const struct iio_info xadc_info = {
 	.read_event_value = &xadc_read_event_value,
 	.write_event_value = &xadc_write_event_value,
 	.update_scan_mode = &xadc_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct of_device_id xadc_of_match_table[] = {
diff --git a/drivers/iio/amplifiers/ad8366.c b/drivers/iio/amplifiers/ad8366.c
index 102c7174da5b..43667866321e 100644
--- a/drivers/iio/amplifiers/ad8366.c
+++ b/drivers/iio/amplifiers/ad8366.c
@@ -117,7 +117,6 @@ static int ad8366_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad8366_info = {
 	.read_raw = &ad8366_read_raw,
 	.write_raw = &ad8366_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define AD8366_CHAN(_channel) {				\
diff --git a/drivers/iio/buffer/Makefile b/drivers/iio/buffer/Makefile
index 85beaae831ae..95f9f41c58b7 100644
--- a/drivers/iio/buffer/Makefile
+++ b/drivers/iio/buffer/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the industrial I/O buffer implementations
 #
diff --git a/drivers/iio/chemical/ams-iaq-core.c b/drivers/iio/chemical/ams-iaq-core.c
index c948ad2ee9ad..d9e5950ad24a 100644
--- a/drivers/iio/chemical/ams-iaq-core.c
+++ b/drivers/iio/chemical/ams-iaq-core.c
@@ -141,7 +141,6 @@ err_out:
 
 static const struct iio_info ams_iaqcore_info = {
 	.read_raw	= ams_iaqcore_read_raw,
-	.driver_module	= THIS_MODULE,
 };
 
 static int ams_iaqcore_probe(struct i2c_client *client,
diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c
index ef761a508630..8c4e05580091 100644
--- a/drivers/iio/chemical/atlas-ph-sensor.c
+++ b/drivers/iio/chemical/atlas-ph-sensor.c
@@ -344,7 +344,6 @@ static int atlas_buffer_predisable(struct iio_dev *indio_dev)
 }
 
 static const struct iio_trigger_ops atlas_interrupt_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static const struct iio_buffer_setup_ops atlas_buffer_setup_ops = {
@@ -499,7 +498,6 @@ static int atlas_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info atlas_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = atlas_read_raw,
 	.write_raw = atlas_write_raw,
 };
diff --git a/drivers/iio/chemical/ccs811.c b/drivers/iio/chemical/ccs811.c
index 840a6cbd5f0f..97bce8345c6a 100644
--- a/drivers/iio/chemical/ccs811.c
+++ b/drivers/iio/chemical/ccs811.c
@@ -22,6 +22,7 @@
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
+#include <linux/iio/trigger.h>
 #include <linux/iio/triggered_buffer.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/module.h>
@@ -59,6 +60,8 @@
 #define CCS811_MODE_IAQ_60SEC	0x30
 #define CCS811_MODE_RAW_DATA	0x40
 
+#define CCS811_MEAS_MODE_INTERRUPT	BIT(3)
+
 #define CCS811_VOLTAGE_MASK	0x3FF
 
 struct ccs811_reading {
@@ -73,6 +76,8 @@ struct ccs811_data {
 	struct i2c_client *client;
 	struct mutex lock; /* Protect readings */
 	struct ccs811_reading buffer;
+	struct iio_trigger *drdy_trig;
+	bool drdy_trig_on;
 };
 
 static const struct iio_chan_spec ccs811_channels[] = {
@@ -193,10 +198,14 @@ static int ccs811_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (ret)
+			return ret;
 		mutex_lock(&data->lock);
 		ret = ccs811_get_measurement(data);
 		if (ret < 0) {
 			mutex_unlock(&data->lock);
+			iio_device_release_direct_mode(indio_dev);
 			return ret;
 		}
 
@@ -228,6 +237,7 @@ static int ccs811_read_raw(struct iio_dev *indio_dev,
 			ret = -EINVAL;
 		}
 		mutex_unlock(&data->lock);
+		iio_device_release_direct_mode(indio_dev);
 
 		return ret;
 
@@ -270,7 +280,31 @@ static int ccs811_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info ccs811_info = {
 	.read_raw = ccs811_read_raw,
-	.driver_module = THIS_MODULE,
+};
+
+static int ccs811_set_trigger_state(struct iio_trigger *trig,
+				    bool state)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
+	struct ccs811_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, CCS811_MEAS_MODE);
+	if (ret < 0)
+		return ret;
+
+	if (state)
+		ret |= CCS811_MEAS_MODE_INTERRUPT;
+	else
+		ret &= ~CCS811_MEAS_MODE_INTERRUPT;
+
+	data->drdy_trig_on = state;
+
+	return i2c_smbus_write_byte_data(data->client, CCS811_MEAS_MODE, ret);
+}
+
+static const struct iio_trigger_ops ccs811_trigger_ops = {
+	.set_trigger_state = ccs811_set_trigger_state,
 };
 
 static irqreturn_t ccs811_trigger_handler(int irq, void *p)
@@ -298,6 +332,17 @@ err:
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t ccs811_data_rdy_trigger_poll(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct ccs811_data *data = iio_priv(indio_dev);
+
+	if (data->drdy_trig_on)
+		iio_trigger_poll(data->drdy_trig);
+
+	return IRQ_HANDLED;
+}
+
 static int ccs811_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
@@ -346,16 +391,48 @@ static int ccs811_probe(struct i2c_client *client,
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->name = id->name;
 	indio_dev->info = &ccs811_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	indio_dev->channels = ccs811_channels;
 	indio_dev->num_channels = ARRAY_SIZE(ccs811_channels);
 
+	if (client->irq > 0) {
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
+						ccs811_data_rdy_trigger_poll,
+						NULL,
+						IRQF_TRIGGER_FALLING |
+						IRQF_ONESHOT,
+						"ccs811_irq", indio_dev);
+		if (ret) {
+			dev_err(&client->dev, "irq request error %d\n", -ret);
+			goto err_poweroff;
+		}
+
+		data->drdy_trig = devm_iio_trigger_alloc(&client->dev,
+							 "%s-dev%d",
+							 indio_dev->name,
+							 indio_dev->id);
+		if (!data->drdy_trig) {
+			ret = -ENOMEM;
+			goto err_poweroff;
+		}
+
+		data->drdy_trig->dev.parent = &client->dev;
+		data->drdy_trig->ops = &ccs811_trigger_ops;
+		iio_trigger_set_drvdata(data->drdy_trig, indio_dev);
+		indio_dev->trig = data->drdy_trig;
+		iio_trigger_get(indio_dev->trig);
+		ret = iio_trigger_register(data->drdy_trig);
+		if (ret)
+			goto err_poweroff;
+	}
+
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
 					 ccs811_trigger_handler, NULL);
 
 	if (ret < 0) {
 		dev_err(&client->dev, "triggered buffer setup failed\n");
-		goto err_poweroff;
+		goto err_trigger_unregister;
 	}
 
 	ret = iio_device_register(indio_dev);
@@ -367,6 +444,9 @@ static int ccs811_probe(struct i2c_client *client,
 
 err_buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
+err_trigger_unregister:
+	if (data->drdy_trig)
+		iio_trigger_unregister(data->drdy_trig);
 err_poweroff:
 	i2c_smbus_write_byte_data(client, CCS811_MEAS_MODE, CCS811_MODE_IDLE);
 
@@ -376,9 +456,12 @@ err_poweroff:
 static int ccs811_remove(struct i2c_client *client)
 {
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct ccs811_data *data = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
+	if (data->drdy_trig)
+		iio_trigger_unregister(data->drdy_trig);
 
 	return i2c_smbus_write_byte_data(client, CCS811_MEAS_MODE,
 					 CCS811_MODE_IDLE);
diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c
index f75eea6822f2..9c9095ba4227 100644
--- a/drivers/iio/chemical/vz89x.c
+++ b/drivers/iio/chemical/vz89x.c
@@ -326,7 +326,6 @@ static int vz89x_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info vz89x_info = {
 	.attrs		= &vz89x_attrs_group,
 	.read_raw	= vz89x_read_raw,
-	.driver_module	= THIS_MODULE,
 };
 
 static const struct vz89x_chip_data vz89x_chips[] = {
diff --git a/drivers/iio/common/Makefile b/drivers/iio/common/Makefile
index 6fa760e1bdd5..4bc30bb548e2 100644
--- a/drivers/iio/common/Makefile
+++ b/drivers/iio/common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the IIO common modules.
 # Common modules contains modules, which can be shared among multiple
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
index 38e8783e4b05..ed8063f2da99 100644
--- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
+++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c
@@ -185,7 +185,6 @@ static int cros_ec_sensors_write(struct iio_dev *indio_dev,
 static const struct iio_info ec_sensors_info = {
 	.read_raw = &cros_ec_sensors_read,
 	.write_raw = &cros_ec_sensors_write,
-	.driver_module = THIS_MODULE,
 };
 
 static int cros_ec_sensors_probe(struct platform_device *pdev)
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index 0e4b379ada45..cfb6588565ba 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -179,6 +179,10 @@ int hid_sensor_power_state(struct hid_sensor_common *st, bool state)
 	int ret;
 
 	atomic_set(&st->user_requested_state, state);
+
+	if (atomic_add_unless(&st->runtime_pm_enable, 1, 1))
+		pm_runtime_enable(&st->pdev->dev);
+
 	if (state)
 		ret = pm_runtime_get_sync(&st->pdev->dev);
 	else {
@@ -221,7 +225,8 @@ static void hid_sensor_set_power_work(struct work_struct *work)
 	if (attrb->latency_ms > 0)
 		hid_sensor_set_report_latency(attrb, attrb->latency_ms);
 
-	_hid_sensor_power_state(attrb, true);
+	if (atomic_read(&attrb->user_requested_state))
+		_hid_sensor_power_state(attrb, true);
 }
 
 static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
@@ -232,7 +237,9 @@ static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
 
 void hid_sensor_remove_trigger(struct hid_sensor_common *attrb)
 {
-	pm_runtime_disable(&attrb->pdev->dev);
+	if (atomic_read(&attrb->runtime_pm_enable))
+		pm_runtime_disable(&attrb->pdev->dev);
+
 	pm_runtime_set_suspended(&attrb->pdev->dev);
 	pm_runtime_put_noidle(&attrb->pdev->dev);
 
@@ -243,7 +250,6 @@ void hid_sensor_remove_trigger(struct hid_sensor_common *attrb)
 EXPORT_SYMBOL(hid_sensor_remove_trigger);
 
 static const struct iio_trigger_ops hid_sensor_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &hid_sensor_data_rdy_trigger_set_state,
 };
 
@@ -283,7 +289,6 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
 	INIT_WORK(&attrb->work, hid_sensor_set_power_work);
 
 	pm_suspend_ignore_children(&attrb->pdev->dev, true);
-	pm_runtime_enable(&attrb->pdev->dev);
 	/* Default to 3 seconds, but can be changed from sysfs */
 	pm_runtime_set_autosuspend_delay(&attrb->pdev->dev,
 					 3000);
diff --git a/drivers/iio/common/ssp_sensors/ssp_iio_sensor.h b/drivers/iio/common/ssp_sensors/ssp_iio_sensor.h
index 541c6590d69c..4528ab55eb68 100644
--- a/drivers/iio/common/ssp_sensors/ssp_iio_sensor.h
+++ b/drivers/iio/common/ssp_sensors/ssp_iio_sensor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SSP_IIO_SENSOR_H__
 #define __SSP_IIO_SENSOR_H__
 
diff --git a/drivers/iio/common/st_sensors/Makefile b/drivers/iio/common/st_sensors/Makefile
index 9f3e24f3024b..f7fb3b79b64c 100644
--- a/drivers/iio/common/st_sensors/Makefile
+++ b/drivers/iio/common/st_sensors/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the STMicroelectronics sensor common modules.
 #
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index d99bb1460fe2..57db19182e95 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -93,6 +93,9 @@ int st_sensors_set_odr(struct iio_dev *indio_dev, unsigned int odr)
 	struct st_sensor_odr_avl odr_out = {0, 0};
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
+	if (!sdata->sensor_settings->odr.addr)
+		return 0;
+
 	err = st_sensors_match_odr(sdata->sensor_settings, odr, &odr_out);
 	if (err < 0)
 		goto st_sensors_match_odr_error;
@@ -221,11 +224,14 @@ EXPORT_SYMBOL(st_sensors_set_enable);
 int st_sensors_set_axis_enable(struct iio_dev *indio_dev, u8 axis_enable)
 {
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
+	int err = 0;
 
-	return st_sensors_write_data_with_mask(indio_dev,
+	if (sdata->sensor_settings->enable_axis.addr)
+		err = st_sensors_write_data_with_mask(indio_dev,
 				sdata->sensor_settings->enable_axis.addr,
 				sdata->sensor_settings->enable_axis.mask,
 				axis_enable);
+	return err;
 }
 EXPORT_SYMBOL(st_sensors_set_axis_enable);
 
@@ -283,7 +289,8 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
 	/* Sensor does not support interrupts */
-	if (sdata->sensor_settings->drdy_irq.addr == 0) {
+	if (!sdata->sensor_settings->drdy_irq.int1.addr &&
+	    !sdata->sensor_settings->drdy_irq.int2.addr) {
 		if (pdata->drdy_int_pin)
 			dev_info(&indio_dev->dev,
 				 "DRDY on pin INT%d specified, but sensor "
@@ -294,7 +301,7 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 
 	switch (pdata->drdy_int_pin) {
 	case 1:
-		if (sdata->sensor_settings->drdy_irq.mask_int1 == 0) {
+		if (!sdata->sensor_settings->drdy_irq.int1.mask) {
 			dev_err(&indio_dev->dev,
 					"DRDY on INT1 not available.\n");
 			return -EINVAL;
@@ -302,7 +309,7 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 		sdata->drdy_int_pin = 1;
 		break;
 	case 2:
-		if (sdata->sensor_settings->drdy_irq.mask_int2 == 0) {
+		if (!sdata->sensor_settings->drdy_irq.int2.mask) {
 			dev_err(&indio_dev->dev,
 					"DRDY on INT2 not available.\n");
 			return -EINVAL;
@@ -315,7 +322,8 @@ static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
 	}
 
 	if (pdata->open_drain) {
-		if (!sdata->sensor_settings->drdy_irq.addr_od)
+		if (!sdata->sensor_settings->drdy_irq.int1.addr_od &&
+		    !sdata->sensor_settings->drdy_irq.int2.addr_od)
 			dev_err(&indio_dev->dev,
 				"open drain requested but unsupported.\n");
 		else
@@ -442,11 +450,21 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 	}
 
 	if (sdata->int_pin_open_drain) {
+		u8 addr, mask;
+
+		if (sdata->drdy_int_pin == 1) {
+			addr = sdata->sensor_settings->drdy_irq.int1.addr_od;
+			mask = sdata->sensor_settings->drdy_irq.int1.mask_od;
+		} else {
+			addr = sdata->sensor_settings->drdy_irq.int2.addr_od;
+			mask = sdata->sensor_settings->drdy_irq.int2.mask_od;
+		}
+
 		dev_info(&indio_dev->dev,
-			 "set interrupt line to open drain mode\n");
-		err = st_sensors_write_data_with_mask(indio_dev,
-				sdata->sensor_settings->drdy_irq.addr_od,
-				sdata->sensor_settings->drdy_irq.mask_od, 1);
+			 "set interrupt line to open drain mode on pin %d\n",
+			 sdata->drdy_int_pin);
+		err = st_sensors_write_data_with_mask(indio_dev, addr,
+						      mask, 1);
 		if (err < 0)
 			return err;
 	}
@@ -460,11 +478,21 @@ EXPORT_SYMBOL(st_sensors_init_sensor);
 int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
 {
 	int err;
-	u8 drdy_mask;
+	u8 drdy_addr, drdy_mask;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
-	if (!sdata->sensor_settings->drdy_irq.addr)
+	if (!sdata->sensor_settings->drdy_irq.int1.addr &&
+	    !sdata->sensor_settings->drdy_irq.int2.addr) {
+		/*
+		 * there are some devices (e.g. LIS3MDL) where drdy line is
+		 * routed to a given pin and it is not possible to select a
+		 * different one. Take into account irq status register
+		 * to understand if irq trigger can be properly supported
+		 */
+		if (sdata->sensor_settings->drdy_irq.stat_drdy.addr)
+			sdata->hw_irq_trigger = enable;
 		return 0;
+	}
 
 	/* Enable/Disable the interrupt generator 1. */
 	if (sdata->sensor_settings->drdy_irq.ig1.en_addr > 0) {
@@ -476,18 +504,20 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
 			goto st_accel_set_dataready_irq_error;
 	}
 
-	if (sdata->drdy_int_pin == 1)
-		drdy_mask = sdata->sensor_settings->drdy_irq.mask_int1;
-	else
-		drdy_mask = sdata->sensor_settings->drdy_irq.mask_int2;
+	if (sdata->drdy_int_pin == 1) {
+		drdy_addr = sdata->sensor_settings->drdy_irq.int1.addr;
+		drdy_mask = sdata->sensor_settings->drdy_irq.int1.mask;
+	} else {
+		drdy_addr = sdata->sensor_settings->drdy_irq.int2.addr;
+		drdy_mask = sdata->sensor_settings->drdy_irq.int2.mask;
+	}
 
 	/* Flag to the poll function that the hardware trigger is in use */
 	sdata->hw_irq_trigger = enable;
 
 	/* Enable/Disable the interrupt generator for data ready. */
-	err = st_sensors_write_data_with_mask(indio_dev,
-					sdata->sensor_settings->drdy_irq.addr,
-					drdy_mask, (int)enable);
+	err = st_sensors_write_data_with_mask(indio_dev, drdy_addr,
+					      drdy_mask, (int)enable);
 
 st_accel_set_dataready_irq_error:
 	return err;
diff --git a/drivers/iio/common/st_sensors/st_sensors_core.h b/drivers/iio/common/st_sensors/st_sensors_core.h
index cd88098ff6f1..e8894be55660 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.h
+++ b/drivers/iio/common/st_sensors/st_sensors_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Local functions in the ST Sensors core
  */
diff --git a/drivers/iio/common/st_sensors/st_sensors_trigger.c b/drivers/iio/common/st_sensors/st_sensors_trigger.c
index fa73e6795359..fdcc5a891958 100644
--- a/drivers/iio/common/st_sensors/st_sensors_trigger.c
+++ b/drivers/iio/common/st_sensors/st_sensors_trigger.c
@@ -31,7 +31,7 @@ static int st_sensors_new_samples_available(struct iio_dev *indio_dev,
 	int ret;
 
 	/* How would I know if I can't check it? */
-	if (!sdata->sensor_settings->drdy_irq.addr_stat_drdy)
+	if (!sdata->sensor_settings->drdy_irq.stat_drdy.addr)
 		return -EINVAL;
 
 	/* No scan mask, no interrupt */
@@ -39,23 +39,15 @@ static int st_sensors_new_samples_available(struct iio_dev *indio_dev,
 		return 0;
 
 	ret = sdata->tf->read_byte(&sdata->tb, sdata->dev,
-			sdata->sensor_settings->drdy_irq.addr_stat_drdy,
+			sdata->sensor_settings->drdy_irq.stat_drdy.addr,
 			&status);
 	if (ret < 0) {
 		dev_err(sdata->dev,
 			"error checking samples available\n");
 		return ret;
 	}
-	/*
-	 * the lower bits of .active_scan_mask[0] is directly mapped
-	 * to the channels on the sensor: either bit 0 for
-	 * one-dimensional sensors, or e.g. x,y,z for accelerometers,
-	 * gyroscopes or magnetometers. No sensor use more than 3
-	 * channels, so cut the other status bits here.
-	 */
-	status &= 0x07;
 
-	if (status & (u8)indio_dev->active_scan_mask[0])
+	if (status & sdata->sensor_settings->drdy_irq.stat_drdy.mask)
 		return 1;
 
 	return 0;
@@ -212,7 +204,7 @@ int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
 	 * it was "our" interrupt.
 	 */
 	if (sdata->int_pin_open_drain &&
-	    sdata->sensor_settings->drdy_irq.addr_stat_drdy)
+	    sdata->sensor_settings->drdy_irq.stat_drdy.addr)
 		irq_trig |= IRQF_SHARED;
 
 	err = request_threaded_irq(sdata->get_irq_data_ready(indio_dev),
diff --git a/drivers/iio/counter/104-quad-8.c b/drivers/iio/counter/104-quad-8.c
index ba3d9030cd51..b56985078d8c 100644
--- a/drivers/iio/counter/104-quad-8.c
+++ b/drivers/iio/counter/104-quad-8.c
@@ -185,7 +185,6 @@ static int quad8_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info quad8_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = quad8_read_raw,
 	.write_raw = quad8_write_raw
 };
diff --git a/drivers/iio/counter/stm32-lptimer-cnt.c b/drivers/iio/counter/stm32-lptimer-cnt.c
index 1c5909bb1605..81ae5f74216d 100644
--- a/drivers/iio/counter/stm32-lptimer-cnt.c
+++ b/drivers/iio/counter/stm32-lptimer-cnt.c
@@ -178,7 +178,6 @@ static int stm32_lptim_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info stm32_lptim_cnt_iio_info = {
 	.read_raw = stm32_lptim_read_raw,
 	.write_raw = stm32_lptim_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const char *const stm32_lptim_quadrature_modes[] = {
diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 25bed2d7d2b9..965d5c0d2468 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -60,7 +60,8 @@ config AD5446
 	  Say yes here to build support for Analog Devices AD5300, AD5301, AD5310,
 	  AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,
 	  AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601, AD5602, AD5611, AD5612,
-	  AD5620, AD5621, AD5622, AD5640, AD5641, AD5660, AD5662 DACs.
+	  AD5620, AD5621, AD5622, AD5640, AD5641, AD5660, AD5662 DACs
+	  as well as Texas Instruments DAC081S101, DAC101S101, DAC121S101.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5446.
@@ -221,6 +222,15 @@ config DPOT_DAC
 	  To compile this driver as a module, choose M here: the module will be
 	  called dpot-dac.
 
+config DS4424
+	tristate "Maxim Integrated DS4422/DS4424 DAC driver"
+	depends on I2C
+	help
+	  If you say yes here you get support for Maxim chips DS4422, DS4424.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called ds4424.
+
 config LPC18XX_DAC
 	tristate "NXP LPC18xx DAC driver"
 	depends on ARCH_LPC18XX || COMPILE_TEST
@@ -300,6 +310,16 @@ config STM32_DAC
 config STM32_DAC_CORE
 	tristate
 
+config TI_DAC082S085
+	tristate "Texas Instruments 8/10/12-bit 2/4-channel DAC driver"
+	depends on SPI_MASTER
+	help
+	  Driver for the Texas Instruments (formerly National Semiconductor)
+	  DAC082S085, DAC102S085, DAC122S085, DAC084S085, DAC104S085 and
+	  DAC124S085.
+
+	  If compiled as a module, it will be called ti-dac082s085.
+
 config VF610_DAC
 	tristate "Vybrid vf610 DAC driver"
 	depends on OF
diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile
index 603587cc2f07..81e710ed7491 100644
--- a/drivers/iio/dac/Makefile
+++ b/drivers/iio/dac/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O DAC drivers
 #
@@ -23,6 +24,7 @@ obj-$(CONFIG_AD7303) += ad7303.o
 obj-$(CONFIG_AD8801) += ad8801.o
 obj-$(CONFIG_CIO_DAC) += cio-dac.o
 obj-$(CONFIG_DPOT_DAC) += dpot-dac.o
+obj-$(CONFIG_DS4424) += ds4424.o
 obj-$(CONFIG_LPC18XX_DAC) += lpc18xx_dac.o
 obj-$(CONFIG_LTC2632) += ltc2632.o
 obj-$(CONFIG_M62332) += m62332.o
@@ -32,4 +34,5 @@ obj-$(CONFIG_MCP4725) += mcp4725.o
 obj-$(CONFIG_MCP4922) += mcp4922.o
 obj-$(CONFIG_STM32_DAC_CORE) += stm32-dac-core.o
 obj-$(CONFIG_STM32_DAC) += stm32-dac.o
+obj-$(CONFIG_TI_DAC082S085) += ti-dac082s085.o
 obj-$(CONFIG_VF610_DAC) += vf610_dac.o
diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index 3f9399c27869..bf4fc40ec84d 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -366,7 +366,6 @@ static int ad5064_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5064_info = {
 	.read_raw = ad5064_read_raw,
 	.write_raw = ad5064_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ad5064_ext_info[] = {
diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c
index 8ba0e9c50176..0209316d5566 100644
--- a/drivers/iio/dac/ad5360.c
+++ b/drivers/iio/dac/ad5360.c
@@ -425,7 +425,6 @@ static const struct iio_info ad5360_info = {
 	.read_raw = ad5360_read_raw,
 	.write_raw = ad5360_write_raw,
 	.attrs = &ad5360_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const ad5360_vref_name[] = {
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 97d2c5111f43..845fd1c0fd9d 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -237,7 +237,6 @@ static int ad5380_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5380_info = {
 	.read_raw = ad5380_read_raw,
 	.write_raw = ad5380_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static struct iio_chan_spec_ext_info ad5380_ext_info[] = {
diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index 559061ab1982..8e9633d8de67 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -465,7 +465,6 @@ static const struct iio_info ad5421_info = {
 	.read_event_config =	ad5421_read_event_config,
 	.write_event_config =	ad5421_write_event_config,
 	.read_event_value =	ad5421_read_event_value,
-	.driver_module =	THIS_MODULE,
 };
 
 static int ad5421_probe(struct spi_device *spi)
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index b555552a0d80..fd26a4272fc5 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -212,7 +212,6 @@ static int ad5446_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5446_info = {
 	.read_raw = ad5446_read_raw,
 	.write_raw = ad5446_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad5446_probe(struct device *dev, const char *name,
@@ -461,10 +460,22 @@ static const struct spi_device_id ad5446_spi_ids[] = {
 	{"ad5660-2500", ID_AD5660_2500},
 	{"ad5660-1250", ID_AD5660_1250},
 	{"ad5662", ID_AD5662},
+	{"dac081s101", ID_AD5300}, /* compatible Texas Instruments chips */
+	{"dac101s101", ID_AD5310},
+	{"dac121s101", ID_AD5320},
+	{"dac7512", ID_AD5320},
 	{}
 };
 MODULE_DEVICE_TABLE(spi, ad5446_spi_ids);
 
+#ifdef CONFIG_OF
+static const struct of_device_id ad5446_of_ids[] = {
+	{ .compatible = "ti,dac7512" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ad5446_of_ids);
+#endif
+
 static int ad5446_spi_probe(struct spi_device *spi)
 {
 	const struct spi_device_id *id = spi_get_device_id(spi);
@@ -481,6 +492,7 @@ static int ad5446_spi_remove(struct spi_device *spi)
 static struct spi_driver ad5446_spi_driver = {
 	.driver = {
 		.name	= "ad5446",
+		.of_match_table = of_match_ptr(ad5446_of_ids),
 	},
 	.probe		= ad5446_spi_probe,
 	.remove		= ad5446_spi_remove,
diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index 5f3202339420..317a74129932 100644
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -193,7 +193,6 @@ static int ad5449_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5449_info = {
 	.read_raw = ad5449_read_raw,
 	.write_raw = ad5449_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define AD5449_CHANNEL(chan, bits) {				\
diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 712d86b4be09..d9037ea59168 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -232,7 +232,6 @@ static const struct iio_info ad5504_info = {
 	.write_raw = ad5504_write_raw,
 	.read_raw = ad5504_read_raw,
 	.event_attrs = &ad5504_ev_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ad5504_ext_info[] = {
diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 69bde5909854..9234c6a09a93 100644
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -474,7 +474,6 @@ static const struct iio_info ad5592r_info = {
 	.read_raw = ad5592r_read_raw,
 	.write_raw = ad5592r_write_raw,
 	.write_raw_get_fmt = ad5592r_write_raw_get_fmt,
-	.driver_module = THIS_MODULE,
 };
 
 static ssize_t ad5592r_show_scale_available(struct iio_dev *iio_dev,
diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index 5489ec43b95d..13fdb4dfe356 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -149,7 +149,6 @@ static ssize_t ad5624r_write_dac_powerdown(struct iio_dev *indio_dev,
 static const struct iio_info ad5624r_info = {
 	.write_raw = ad5624r_write_raw,
 	.read_raw = ad5624r_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ad5624r_ext_info[] = {
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index d1d8450c19f6..20254df7f9c7 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -252,7 +252,6 @@ static int ad5686_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5686_info = {
 	.read_raw = ad5686_read_raw,
 	.write_raw = ad5686_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ad5686_ext_info[] = {
diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index 5f7968232564..2d03cc89ba50 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -417,7 +417,6 @@ static ssize_t ad5755_write_powerdown(struct iio_dev *indio_dev, uintptr_t priv,
 static const struct iio_info ad5755_info = {
 	.read_raw = ad5755_read_raw,
 	.write_raw = ad5755_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ad5755_ext_info[] = {
diff --git a/drivers/iio/dac/ad5761.c b/drivers/iio/dac/ad5761.c
index d6510d6928b3..05017c8bbd00 100644
--- a/drivers/iio/dac/ad5761.c
+++ b/drivers/iio/dac/ad5761.c
@@ -251,7 +251,6 @@ static int ad5761_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5761_info = {
 	.read_raw = &ad5761_read_raw,
 	.write_raw = &ad5761_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define AD5761_CHAN(_bits) {				\
diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c
index 9a547bbf7d2b..033f20eca616 100644
--- a/drivers/iio/dac/ad5764.c
+++ b/drivers/iio/dac/ad5764.c
@@ -268,7 +268,6 @@ static int ad5764_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5764_info = {
 	.read_raw = ad5764_read_raw,
 	.write_raw = ad5764_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad5764_probe(struct spi_device *spi)
diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 33e4ae5c42f8..7569bf6868c2 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -340,7 +340,6 @@ static int ad5791_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad5791_info = {
 	.read_raw = &ad5791_read_raw,
 	.write_raw = &ad5791_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad5791_probe(struct spi_device *spi)
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index 4b0f942b8914..8f3bd19b6dc3 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -161,7 +161,6 @@ static int ad7303_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad7303_info = {
 	.read_raw = ad7303_read_raw,
 	.write_raw = ad7303_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ad7303_ext_info[] = {
diff --git a/drivers/iio/dac/ad8801.c b/drivers/iio/dac/ad8801.c
index f06faa1aec09..aef5808c9865 100644
--- a/drivers/iio/dac/ad8801.c
+++ b/drivers/iio/dac/ad8801.c
@@ -92,7 +92,6 @@ static int ad8801_read_raw(struct iio_dev *indio_dev,
 static const struct iio_info ad8801_info = {
 	.read_raw = ad8801_read_raw,
 	.write_raw = ad8801_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define AD8801_CHANNEL(chan) {		\
diff --git a/drivers/iio/dac/cio-dac.c b/drivers/iio/dac/cio-dac.c
index a8dffd938615..6898b0c79013 100644
--- a/drivers/iio/dac/cio-dac.c
+++ b/drivers/iio/dac/cio-dac.c
@@ -85,7 +85,6 @@ static int cio_dac_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info cio_dac_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = cio_dac_read_raw,
 	.write_raw = cio_dac_write_raw
 };
diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c
index 960a2b430480..aaa2103d7c2b 100644
--- a/drivers/iio/dac/dpot-dac.c
+++ b/drivers/iio/dac/dpot-dac.c
@@ -128,7 +128,6 @@ static const struct iio_info dpot_dac_info = {
 	.read_raw = dpot_dac_read_raw,
 	.read_avail = dpot_dac_read_avail,
 	.write_raw = dpot_dac_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int dpot_dac_channel_max_ohms(struct iio_dev *indio_dev)
diff --git a/drivers/iio/dac/ds4424.c b/drivers/iio/dac/ds4424.c
new file mode 100644
index 000000000000..883a47562055
--- /dev/null
+++ b/drivers/iio/dac/ds4424.c
@@ -0,0 +1,341 @@
+/*
+ * Maxim Integrated
+ * 7-bit, Multi-Channel Sink/Source Current DAC Driver
+ * Copyright (C) 2017 Maxim Integrated
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/driver.h>
+#include <linux/iio/machine.h>
+#include <linux/iio/consumer.h>
+
+#define DS4422_MAX_DAC_CHANNELS		2
+#define DS4424_MAX_DAC_CHANNELS		4
+
+#define DS4424_DAC_ADDR(chan)   ((chan) + 0xf8)
+#define DS4424_SOURCE_I		1
+#define DS4424_SINK_I		0
+
+#define DS4424_CHANNEL(chan) { \
+	.type = IIO_CURRENT, \
+	.indexed = 1, \
+	.output = 1, \
+	.channel = chan, \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+}
+
+/*
+ * DS4424 DAC control register 8 bits
+ * [7]		0: to sink; 1: to source
+ * [6:0]	steps to sink/source
+ * bit[7] looks like a sign bit, but the value of the register is
+ * not a two's complement code considering the bit[6:0] is a absolute
+ * distance from the zero point.
+ */
+union ds4424_raw_data {
+	struct {
+		u8 dx:7;
+		u8 source_bit:1;
+	};
+	u8 bits;
+};
+
+enum ds4424_device_ids {
+	ID_DS4422,
+	ID_DS4424,
+};
+
+struct ds4424_data {
+	struct i2c_client *client;
+	struct mutex lock;
+	uint8_t save[DS4424_MAX_DAC_CHANNELS];
+	struct regulator *vcc_reg;
+	uint8_t raw[DS4424_MAX_DAC_CHANNELS];
+};
+
+static const struct iio_chan_spec ds4424_channels[] = {
+	DS4424_CHANNEL(0),
+	DS4424_CHANNEL(1),
+	DS4424_CHANNEL(2),
+	DS4424_CHANNEL(3),
+};
+
+static int ds4424_get_value(struct iio_dev *indio_dev,
+			     int *val, int channel)
+{
+	struct ds4424_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = i2c_smbus_read_byte_data(data->client, DS4424_DAC_ADDR(channel));
+	if (ret < 0)
+		goto fail;
+
+	*val = ret;
+
+fail:
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
+static int ds4424_set_value(struct iio_dev *indio_dev,
+			     int val, struct iio_chan_spec const *chan)
+{
+	struct ds4424_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = i2c_smbus_write_byte_data(data->client,
+			DS4424_DAC_ADDR(chan->channel), val);
+	if (ret < 0)
+		goto fail;
+
+	data->raw[chan->channel] = val;
+
+fail:
+	mutex_unlock(&data->lock);
+	return ret;
+}
+
+static int ds4424_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	union ds4424_raw_data raw;
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = ds4424_get_value(indio_dev, val, chan->channel);
+		if (ret < 0) {
+			pr_err("%s : ds4424_get_value returned %d\n",
+							__func__, ret);
+			return ret;
+		}
+		raw.bits = *val;
+		*val = raw.dx;
+		if (raw.source_bit == DS4424_SINK_I)
+			*val = -*val;
+		return IIO_VAL_INT;
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ds4424_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	union ds4424_raw_data raw;
+
+	if (val2 != 0)
+		return -EINVAL;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (val < S8_MIN || val > S8_MAX)
+			return -EINVAL;
+
+		if (val > 0) {
+			raw.source_bit = DS4424_SOURCE_I;
+			raw.dx = val;
+		} else {
+			raw.source_bit = DS4424_SINK_I;
+			raw.dx = -val;
+		}
+
+		return ds4424_set_value(indio_dev, raw.bits, chan);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int ds4424_verify_chip(struct iio_dev *indio_dev)
+{
+	int ret, val;
+
+	ret = ds4424_get_value(indio_dev, &val, DS4424_DAC_ADDR(0));
+	if (ret < 0)
+		dev_err(&indio_dev->dev,
+				"%s failed. ret: %d\n", __func__, ret);
+
+	return ret;
+}
+
+static int __maybe_unused ds4424_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct ds4424_data *data = iio_priv(indio_dev);
+	int ret = 0;
+	int i;
+
+	for (i = 0; i < indio_dev->num_channels; i++) {
+		data->save[i] = data->raw[i];
+		ret = ds4424_set_value(indio_dev, 0,
+				&indio_dev->channels[i]);
+		if (ret < 0)
+			return ret;
+	}
+	return ret;
+}
+
+static int __maybe_unused ds4424_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct ds4424_data *data = iio_priv(indio_dev);
+	int ret = 0;
+	int i;
+
+	for (i = 0; i < indio_dev->num_channels; i++) {
+		ret = ds4424_set_value(indio_dev, data->save[i],
+				&indio_dev->channels[i]);
+		if (ret < 0)
+			return ret;
+	}
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(ds4424_pm_ops, ds4424_suspend, ds4424_resume);
+
+static const struct iio_info ds4424_info = {
+	.read_raw = ds4424_read_raw,
+	.write_raw = ds4424_write_raw,
+};
+
+static int ds4424_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	struct ds4424_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev) {
+		dev_err(&client->dev, "iio dev alloc failed.\n");
+		return -ENOMEM;
+	}
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	indio_dev->name = id->name;
+	indio_dev->dev.of_node = client->dev.of_node;
+	indio_dev->dev.parent = &client->dev;
+
+	if (!client->dev.of_node) {
+		dev_err(&client->dev,
+				"Not found DT.\n");
+		return -ENODEV;
+	}
+
+	data->vcc_reg = devm_regulator_get(&client->dev, "vcc");
+	if (IS_ERR(data->vcc_reg)) {
+		dev_err(&client->dev,
+			"Failed to get vcc-supply regulator. err: %ld\n",
+				PTR_ERR(data->vcc_reg));
+		return PTR_ERR(data->vcc_reg);
+	}
+
+	mutex_init(&data->lock);
+	ret = regulator_enable(data->vcc_reg);
+	if (ret < 0) {
+		dev_err(&client->dev,
+				"Unable to enable the regulator.\n");
+		return ret;
+	}
+
+	usleep_range(1000, 1200);
+	ret = ds4424_verify_chip(indio_dev);
+	if (ret < 0)
+		goto fail;
+
+	switch (id->driver_data) {
+	case ID_DS4422:
+		indio_dev->num_channels = DS4422_MAX_DAC_CHANNELS;
+		break;
+	case ID_DS4424:
+		indio_dev->num_channels = DS4424_MAX_DAC_CHANNELS;
+		break;
+	default:
+		dev_err(&client->dev,
+				"ds4424: Invalid chip id.\n");
+		ret = -ENXIO;
+		goto fail;
+	}
+
+	indio_dev->channels = ds4424_channels;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &ds4424_info;
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0) {
+		dev_err(&client->dev,
+				"iio_device_register failed. ret: %d\n", ret);
+		goto fail;
+	}
+
+	return ret;
+
+fail:
+	regulator_disable(data->vcc_reg);
+	return ret;
+}
+
+static int ds4424_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct ds4424_data *data = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	regulator_disable(data->vcc_reg);
+
+	return 0;
+}
+
+static const struct i2c_device_id ds4424_id[] = {
+	{ "ds4422", ID_DS4422 },
+	{ "ds4424", ID_DS4424 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, ds4424_id);
+
+static const struct of_device_id ds4424_of_match[] = {
+	{ .compatible = "maxim,ds4422" },
+	{ .compatible = "maxim,ds4424" },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(of, ds4424_of_match);
+
+static struct i2c_driver ds4424_driver = {
+	.driver = {
+		.name	= "ds4424",
+		.of_match_table = ds4424_of_match,
+		.pm     = &ds4424_pm_ops,
+	},
+	.probe		= ds4424_probe,
+	.remove		= ds4424_remove,
+	.id_table	= ds4424_id,
+};
+module_i2c_driver(ds4424_driver);
+
+MODULE_DESCRIPTION("Maxim DS4424 DAC Driver");
+MODULE_AUTHOR("Ismail H. Kose <ismail.kose@maximintegrated.com>");
+MODULE_AUTHOR("Vishal Sood <vishal.sood@maximintegrated.com>");
+MODULE_AUTHOR("David Jung <david.jung@maximintegrated.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c
index 55d1456a059d..7036f77fdf23 100644
--- a/drivers/iio/dac/lpc18xx_dac.c
+++ b/drivers/iio/dac/lpc18xx_dac.c
@@ -103,7 +103,6 @@ static int lpc18xx_dac_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info lpc18xx_dac_info = {
 	.read_raw = lpc18xx_dac_read_raw,
 	.write_raw = lpc18xx_dac_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int lpc18xx_dac_probe(struct platform_device *pdev)
diff --git a/drivers/iio/dac/ltc2632.c b/drivers/iio/dac/ltc2632.c
index ac5e05f6eb8b..af2ddd0dd341 100644
--- a/drivers/iio/dac/ltc2632.c
+++ b/drivers/iio/dac/ltc2632.c
@@ -159,7 +159,6 @@ static ssize_t ltc2632_write_dac_powerdown(struct iio_dev *indio_dev,
 static const struct iio_info ltc2632_info = {
 	.write_raw	= ltc2632_write_raw,
 	.read_raw	= ltc2632_read_raw,
-	.driver_module	= THIS_MODULE,
 };
 
 static const struct iio_chan_spec_ext_info ltc2632_ext_info[] = {
diff --git a/drivers/iio/dac/m62332.c b/drivers/iio/dac/m62332.c
index 76e8b044b979..19031943dabe 100644
--- a/drivers/iio/dac/m62332.c
+++ b/drivers/iio/dac/m62332.c
@@ -174,7 +174,6 @@ static SIMPLE_DEV_PM_OPS(m62332_pm_ops, m62332_suspend, m62332_resume);
 static const struct iio_info m62332_info = {
 	.read_raw = m62332_read_raw,
 	.write_raw = m62332_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define M62332_CHANNEL(chan) {					\
diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c
index 5507b3970b4b..1d853247a205 100644
--- a/drivers/iio/dac/max517.c
+++ b/drivers/iio/dac/max517.c
@@ -137,7 +137,6 @@ static SIMPLE_DEV_PM_OPS(max517_pm_ops, max517_suspend, max517_resume);
 static const struct iio_info max517_info = {
 	.read_raw = max517_read_raw,
 	.write_raw = max517_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #define MAX517_CHANNEL(chan) {				\
diff --git a/drivers/iio/dac/max5821.c b/drivers/iio/dac/max5821.c
index 193fac3059a3..d0ecc1fdd8fc 100644
--- a/drivers/iio/dac/max5821.c
+++ b/drivers/iio/dac/max5821.c
@@ -300,7 +300,6 @@ static SIMPLE_DEV_PM_OPS(max5821_pm_ops, max5821_suspend, max5821_resume);
 static const struct iio_info max5821_info = {
 	.read_raw = max5821_read_raw,
 	.write_raw = max5821_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int max5821_probe(struct i2c_client *client,
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 6ab1f23e5a79..afa856d10c26 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -363,7 +363,6 @@ static const struct iio_info mcp4725_info = {
 	.read_raw = mcp4725_read_raw,
 	.write_raw = mcp4725_write_raw,
 	.attrs = &mcp4725_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 #ifdef CONFIG_OF
diff --git a/drivers/iio/dac/mcp4922.c b/drivers/iio/dac/mcp4922.c
index 3854d201a5d6..bf9aa3fc0534 100644
--- a/drivers/iio/dac/mcp4922.c
+++ b/drivers/iio/dac/mcp4922.c
@@ -119,7 +119,6 @@ static const struct iio_chan_spec mcp4922_channels[3][MCP4922_NUM_CHANNELS] = {
 static const struct iio_info mcp4922_info = {
 	.read_raw = &mcp4922_read_raw,
 	.write_raw = &mcp4922_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int mcp4922_probe(struct spi_device *spi)
diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index c1864e8aa851..9ffab02bf9f9 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -156,7 +156,6 @@ static const struct iio_info stm32_dac_iio_info = {
 	.read_raw = stm32_dac_read_raw,
 	.write_raw = stm32_dac_write_raw,
 	.debugfs_reg_access = stm32_dac_debugfs_reg_access,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const stm32_dac_powerdown_modes[] = {
diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c
new file mode 100644
index 000000000000..4e1e28339c84
--- /dev/null
+++ b/drivers/iio/dac/ti-dac082s085.c
@@ -0,0 +1,368 @@
+/*
+ * ti-dac082s085.c - Texas Instruments 8/10/12-bit 2/4-channel DAC driver
+ *
+ * Copyright (C) 2017 KUNBUS GmbH
+ *
+ * http://www.ti.com/lit/ds/symlink/dac082s085.pdf
+ * http://www.ti.com/lit/ds/symlink/dac102s085.pdf
+ * http://www.ti.com/lit/ds/symlink/dac122s085.pdf
+ * http://www.ti.com/lit/ds/symlink/dac084s085.pdf
+ * http://www.ti.com/lit/ds/symlink/dac104s085.pdf
+ * http://www.ti.com/lit/ds/symlink/dac124s085.pdf
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2) as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/iio/iio.h>
+#include <linux/module.h>
+#include <linux/regulator/consumer.h>
+#include <linux/spi/spi.h>
+
+enum { dual_8bit, dual_10bit, dual_12bit, quad_8bit, quad_10bit, quad_12bit };
+
+struct ti_dac_spec {
+	u8 num_channels;
+	u8 resolution;
+};
+
+static const struct ti_dac_spec ti_dac_spec[] = {
+	[dual_8bit]  = { .num_channels = 2, .resolution = 8  },
+	[dual_10bit] = { .num_channels = 2, .resolution = 10 },
+	[dual_12bit] = { .num_channels = 2, .resolution = 12 },
+	[quad_8bit]  = { .num_channels = 4, .resolution = 8  },
+	[quad_10bit] = { .num_channels = 4, .resolution = 10 },
+	[quad_12bit] = { .num_channels = 4, .resolution = 12 },
+};
+
+/**
+ * struct ti_dac_chip - TI DAC chip
+ * @lock: protects write sequences
+ * @vref: regulator generating Vref
+ * @mesg: SPI message to perform a write
+ * @xfer: SPI transfer used by @mesg
+ * @val: cached value of each output
+ * @powerdown: whether the chip is powered down
+ * @powerdown_mode: selected by the user
+ * @resolution: resolution of the chip
+ * @buf: buffer for @xfer
+ */
+struct ti_dac_chip {
+	struct mutex lock;
+	struct regulator *vref;
+	struct spi_message mesg;
+	struct spi_transfer xfer;
+	u16 val[4];
+	bool powerdown;
+	u8 powerdown_mode;
+	u8 resolution;
+	u8 buf[2] ____cacheline_aligned;
+};
+
+#define WRITE_NOT_UPDATE(chan)	(0x00 | (chan) << 6)
+#define WRITE_AND_UPDATE(chan)	(0x10 | (chan) << 6)
+#define WRITE_ALL_UPDATE	 0x20
+#define POWERDOWN(mode) 	(0x30 | ((mode) + 1) << 6)
+
+static int ti_dac_cmd(struct ti_dac_chip *ti_dac, u8 cmd, u16 val)
+{
+	u8 shift = 12 - ti_dac->resolution;
+
+	ti_dac->buf[0] = cmd | (val >> (8 - shift));
+	ti_dac->buf[1] = (val << shift) & 0xff;
+	return spi_sync(ti_dac->mesg.spi, &ti_dac->mesg);
+}
+
+static const char * const ti_dac_powerdown_modes[] = {
+	"2.5kohm_to_gnd", "100kohm_to_gnd", "three_state",
+};
+
+static int ti_dac_get_powerdown_mode(struct iio_dev *indio_dev,
+				     const struct iio_chan_spec *chan)
+{
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+
+	return ti_dac->powerdown_mode;
+}
+
+static int ti_dac_set_powerdown_mode(struct iio_dev *indio_dev,
+				     const struct iio_chan_spec *chan,
+				     unsigned int mode)
+{
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+	int ret = 0;
+
+	if (ti_dac->powerdown_mode == mode)
+		return 0;
+
+	mutex_lock(&ti_dac->lock);
+	if (ti_dac->powerdown) {
+		ret = ti_dac_cmd(ti_dac, POWERDOWN(mode), 0);
+		if (ret)
+			goto out;
+	}
+	ti_dac->powerdown_mode = mode;
+
+out:
+	mutex_unlock(&ti_dac->lock);
+	return ret;
+}
+
+static const struct iio_enum ti_dac_powerdown_mode = {
+	.items = ti_dac_powerdown_modes,
+	.num_items = ARRAY_SIZE(ti_dac_powerdown_modes),
+	.get = ti_dac_get_powerdown_mode,
+	.set = ti_dac_set_powerdown_mode,
+};
+
+static ssize_t ti_dac_read_powerdown(struct iio_dev *indio_dev,
+				     uintptr_t private,
+				     const struct iio_chan_spec *chan,
+				     char *buf)
+{
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+
+	return sprintf(buf, "%d\n", ti_dac->powerdown);
+}
+
+static ssize_t ti_dac_write_powerdown(struct iio_dev *indio_dev,
+				      uintptr_t private,
+				      const struct iio_chan_spec *chan,
+				      const char *buf, size_t len)
+{
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+	bool powerdown;
+	int ret;
+
+	ret = strtobool(buf, &powerdown);
+	if (ret)
+		return ret;
+
+	if (ti_dac->powerdown == powerdown)
+		return len;
+
+	mutex_lock(&ti_dac->lock);
+	if (powerdown)
+		ret = ti_dac_cmd(ti_dac, POWERDOWN(ti_dac->powerdown_mode), 0);
+	else
+		ret = ti_dac_cmd(ti_dac, WRITE_AND_UPDATE(0), ti_dac->val[0]);
+	if (!ret)
+		ti_dac->powerdown = powerdown;
+	mutex_unlock(&ti_dac->lock);
+
+	return ret ? ret : len;
+}
+
+static const struct iio_chan_spec_ext_info ti_dac_ext_info[] = {
+	{
+		.name	   = "powerdown",
+		.read	   = ti_dac_read_powerdown,
+		.write	   = ti_dac_write_powerdown,
+		.shared	   = IIO_SHARED_BY_TYPE,
+	},
+	IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, &ti_dac_powerdown_mode),
+	IIO_ENUM_AVAILABLE("powerdown_mode", &ti_dac_powerdown_mode),
+	{ },
+};
+
+#define TI_DAC_CHANNEL(chan) {					\
+	.type = IIO_VOLTAGE,					\
+	.channel = (chan),					\
+	.address = (chan),					\
+	.indexed = true,					\
+	.output = true,						\
+	.datasheet_name = (const char[]){ 'A' + (chan), 0 },	\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+	.ext_info = ti_dac_ext_info,				\
+}
+
+static const struct iio_chan_spec ti_dac_channels[] = {
+	TI_DAC_CHANNEL(0),
+	TI_DAC_CHANNEL(1),
+	TI_DAC_CHANNEL(2),
+	TI_DAC_CHANNEL(3),
+};
+
+static int ti_dac_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		*val = ti_dac->val[chan->channel];
+		ret = IIO_VAL_INT;
+		break;
+
+	case IIO_CHAN_INFO_SCALE:
+		ret = regulator_get_voltage(ti_dac->vref);
+		if (ret < 0)
+			return ret;
+
+		*val = ret / 1000;
+		*val2 = ti_dac->resolution;
+		ret = IIO_VAL_FRACTIONAL_LOG2;
+		break;
+
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int ti_dac_write_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int val, int val2, long mask)
+{
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (ti_dac->val[chan->channel] == val)
+			return 0;
+
+		if (val >= (1 << ti_dac->resolution) || val < 0)
+			return -EINVAL;
+
+		if (ti_dac->powerdown)
+			return -EBUSY;
+
+		mutex_lock(&ti_dac->lock);
+		ret = ti_dac_cmd(ti_dac, WRITE_AND_UPDATE(chan->channel), val);
+		if (!ret)
+			ti_dac->val[chan->channel] = val;
+		mutex_unlock(&ti_dac->lock);
+		break;
+
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int ti_dac_write_raw_get_fmt(struct iio_dev *indio_dev,
+				    struct iio_chan_spec const *chan, long mask)
+{
+	return IIO_VAL_INT;
+}
+
+static const struct iio_info ti_dac_info = {
+	.read_raw	   = ti_dac_read_raw,
+	.write_raw	   = ti_dac_write_raw,
+	.write_raw_get_fmt = ti_dac_write_raw_get_fmt,
+};
+
+static int ti_dac_probe(struct spi_device *spi)
+{
+	struct device *dev = &spi->dev;
+	const struct ti_dac_spec *spec;
+	struct ti_dac_chip *ti_dac;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*ti_dac));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	indio_dev->dev.parent = dev;
+	indio_dev->info = &ti_dac_info;
+	indio_dev->name = spi->modalias;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = ti_dac_channels;
+	spi_set_drvdata(spi, indio_dev);
+
+	ti_dac = iio_priv(indio_dev);
+	ti_dac->xfer.tx_buf = &ti_dac->buf;
+	ti_dac->xfer.len = sizeof(ti_dac->buf);
+	spi_message_init_with_transfers(&ti_dac->mesg, &ti_dac->xfer, 1);
+	ti_dac->mesg.spi = spi;
+
+	spec = &ti_dac_spec[spi_get_device_id(spi)->driver_data];
+	indio_dev->num_channels = spec->num_channels;
+	ti_dac->resolution = spec->resolution;
+
+	ti_dac->vref = devm_regulator_get(dev, "vref");
+	if (IS_ERR(ti_dac->vref))
+		return PTR_ERR(ti_dac->vref);
+
+	ret = regulator_enable(ti_dac->vref);
+	if (ret < 0)
+		return ret;
+
+	mutex_init(&ti_dac->lock);
+
+	ret = ti_dac_cmd(ti_dac, WRITE_ALL_UPDATE, 0);
+	if (ret) {
+		dev_err(dev, "failed to initialize outputs to 0\n");
+		goto err;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err;
+
+	return 0;
+
+err:
+	mutex_destroy(&ti_dac->lock);
+	regulator_disable(ti_dac->vref);
+	return ret;
+}
+
+static int ti_dac_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct ti_dac_chip *ti_dac = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	mutex_destroy(&ti_dac->lock);
+	regulator_disable(ti_dac->vref);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id ti_dac_of_id[] = {
+	{ .compatible = "ti,dac082s085" },
+	{ .compatible = "ti,dac102s085" },
+	{ .compatible = "ti,dac122s085" },
+	{ .compatible = "ti,dac084s085" },
+	{ .compatible = "ti,dac104s085" },
+	{ .compatible = "ti,dac124s085" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, ti_dac_of_id);
+#endif
+
+static const struct spi_device_id ti_dac_spi_id[] = {
+	{ "dac082s085", dual_8bit  },
+	{ "dac102s085", dual_10bit },
+	{ "dac122s085", dual_12bit },
+	{ "dac084s085", quad_8bit  },
+	{ "dac104s085", quad_10bit },
+	{ "dac124s085", quad_12bit },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, ti_dac_spi_id);
+
+static struct spi_driver ti_dac_driver = {
+	.driver = {
+		.name		= "ti-dac082s085",
+		.of_match_table	= of_match_ptr(ti_dac_of_id),
+	},
+	.probe	  = ti_dac_probe,
+	.remove   = ti_dac_remove,
+	.id_table = ti_dac_spi_id,
+};
+module_spi_driver(ti_dac_driver);
+
+MODULE_AUTHOR("Lukas Wunner <lukas@wunner.de>");
+MODULE_DESCRIPTION("Texas Instruments 8/10/12-bit 2/4-channel DAC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/iio/dac/vf610_dac.c b/drivers/iio/dac/vf610_dac.c
index c4ec7779b394..5dccdd16cab3 100644
--- a/drivers/iio/dac/vf610_dac.c
+++ b/drivers/iio/dac/vf610_dac.c
@@ -167,7 +167,6 @@ static int vf610_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info vf610_dac_iio_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &vf610_read_raw,
 	.write_raw = &vf610_write_raw,
 };
diff --git a/drivers/iio/dummy/Kconfig b/drivers/iio/dummy/Kconfig
index aa5824d96a43..5a29fbd3c531 100644
--- a/drivers/iio/dummy/Kconfig
+++ b/drivers/iio/dummy/Kconfig
@@ -5,7 +5,7 @@ menu "IIO dummy driver"
 	depends on IIO
 
 config IIO_DUMMY_EVGEN
-	select IRQ_WORK
+	select IRQ_SIM
 	tristate
 
 config IIO_SIMPLE_DUMMY
diff --git a/drivers/iio/dummy/Makefile b/drivers/iio/dummy/Makefile
index 0765e93d7804..f14fe20f365c 100644
--- a/drivers/iio/dummy/Makefile
+++ b/drivers/iio/dummy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the IIO Dummy Driver
 #
diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c
index 9e83f348df51..fe8884543da0 100644
--- a/drivers/iio/dummy/iio_dummy_evgen.c
+++ b/drivers/iio/dummy/iio_dummy_evgen.c
@@ -24,97 +24,46 @@
 #include "iio_dummy_evgen.h"
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
-#include <linux/irq_work.h>
+#include <linux/irq_sim.h>
 
 /* Fiddly bit of faking and irq without hardware */
 #define IIO_EVENTGEN_NO 10
 
 /**
- * struct iio_dummy_handle_irq - helper struct to simulate interrupt generation
- * @work: irq_work used to run handlers from hardirq context
- * @irq: fake irq line number to trigger an interrupt
- */
-struct iio_dummy_handle_irq {
-	struct irq_work work;
-	int irq;
-};
-
-/**
- * struct iio_dummy_evgen - evgen state
- * @chip: irq chip we are faking
- * @base: base of irq range
- * @enabled: mask of which irqs are enabled
- * @inuse: mask of which irqs are connected
  * @regs: irq regs we are faking
  * @lock: protect the evgen state
- * @handler: helper for a 'hardware-like' interrupt simulation
+ * @inuse: mask of which irqs are connected
+ * @irq_sim: interrupt simulator
+ * @base: base of irq range
  */
 struct iio_dummy_eventgen {
-	struct irq_chip chip;
-	int base;
-	bool enabled[IIO_EVENTGEN_NO];
-	bool inuse[IIO_EVENTGEN_NO];
 	struct iio_dummy_regs regs[IIO_EVENTGEN_NO];
 	struct mutex lock;
-	struct iio_dummy_handle_irq handler;
+	bool inuse[IIO_EVENTGEN_NO];
+	struct irq_sim irq_sim;
+	int base;
 };
 
 /* We can only ever have one instance of this 'device' */
 static struct iio_dummy_eventgen *iio_evgen;
-static const char *iio_evgen_name = "iio_dummy_evgen";
-
-static void iio_dummy_event_irqmask(struct irq_data *d)
-{
-	struct irq_chip *chip = irq_data_get_irq_chip(d);
-	struct iio_dummy_eventgen *evgen =
-		container_of(chip, struct iio_dummy_eventgen, chip);
-
-	evgen->enabled[d->irq - evgen->base] = false;
-}
-
-static void iio_dummy_event_irqunmask(struct irq_data *d)
-{
-	struct irq_chip *chip = irq_data_get_irq_chip(d);
-	struct iio_dummy_eventgen *evgen =
-		container_of(chip, struct iio_dummy_eventgen, chip);
-
-	evgen->enabled[d->irq - evgen->base] = true;
-}
-
-static void iio_dummy_work_handler(struct irq_work *work)
-{
-	struct iio_dummy_handle_irq *irq_handler;
-
-	irq_handler = container_of(work, struct iio_dummy_handle_irq, work);
-	handle_simple_irq(irq_to_desc(irq_handler->irq));
-}
 
 static int iio_dummy_evgen_create(void)
 {
-	int ret, i;
+	int ret;
 
 	iio_evgen = kzalloc(sizeof(*iio_evgen), GFP_KERNEL);
 	if (!iio_evgen)
 		return -ENOMEM;
 
-	iio_evgen->base = irq_alloc_descs(-1, 0, IIO_EVENTGEN_NO, 0);
-	if (iio_evgen->base < 0) {
-		ret = iio_evgen->base;
+	ret = irq_sim_init(&iio_evgen->irq_sim, IIO_EVENTGEN_NO);
+	if (ret) {
 		kfree(iio_evgen);
 		return ret;
 	}
-	iio_evgen->chip.name = iio_evgen_name;
-	iio_evgen->chip.irq_mask = &iio_dummy_event_irqmask;
-	iio_evgen->chip.irq_unmask = &iio_dummy_event_irqunmask;
-	for (i = 0; i < IIO_EVENTGEN_NO; i++) {
-		irq_set_chip(iio_evgen->base + i, &iio_evgen->chip);
-		irq_set_handler(iio_evgen->base + i, &handle_simple_irq);
-		irq_modify_status(iio_evgen->base + i,
-				  IRQ_NOREQUEST | IRQ_NOAUTOEN,
-				  IRQ_NOPROBE);
-	}
-	init_irq_work(&iio_evgen->handler.work, iio_dummy_work_handler);
+
+	iio_evgen->base = irq_sim_irqnum(&iio_evgen->irq_sim, 0);
 	mutex_init(&iio_evgen->lock);
+
 	return 0;
 }
 
@@ -132,15 +81,17 @@ int iio_dummy_evgen_get_irq(void)
 		return -ENODEV;
 
 	mutex_lock(&iio_evgen->lock);
-	for (i = 0; i < IIO_EVENTGEN_NO; i++)
+	for (i = 0; i < IIO_EVENTGEN_NO; i++) {
 		if (!iio_evgen->inuse[i]) {
-			ret = iio_evgen->base + i;
+			ret = irq_sim_irqnum(&iio_evgen->irq_sim, i);
 			iio_evgen->inuse[i] = true;
 			break;
 		}
+	}
 	mutex_unlock(&iio_evgen->lock);
 	if (i == IIO_EVENTGEN_NO)
 		return -ENOMEM;
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(iio_dummy_evgen_get_irq);
@@ -167,7 +118,7 @@ EXPORT_SYMBOL_GPL(iio_dummy_evgen_get_regs);
 
 static void iio_dummy_evgen_free(void)
 {
-	irq_free_descs(iio_evgen->base, IIO_EVENTGEN_NO);
+	irq_sim_fini(&iio_evgen->irq_sim);
 	kfree(iio_evgen);
 }
 
@@ -192,9 +143,7 @@ static ssize_t iio_evgen_poke(struct device *dev,
 	iio_evgen->regs[this_attr->address].reg_id   = this_attr->address;
 	iio_evgen->regs[this_attr->address].reg_data = event;
 
-	iio_evgen->handler.irq = iio_evgen->base + this_attr->address;
-	if (iio_evgen->enabled[this_attr->address])
-		irq_work_queue(&iio_evgen->handler.work);
+	irq_sim_fire(&iio_evgen->irq_sim, this_attr->address);
 
 	return len;
 }
diff --git a/drivers/iio/dummy/iio_dummy_evgen.h b/drivers/iio/dummy/iio_dummy_evgen.h
index d044b946e74a..e0bf64fe9d67 100644
--- a/drivers/iio/dummy/iio_dummy_evgen.h
+++ b/drivers/iio/dummy/iio_dummy_evgen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IIO_DUMMY_EVGEN_H_
 #define _IIO_DUMMY_EVGEN_H_
 
diff --git a/drivers/iio/dummy/iio_simple_dummy.c b/drivers/iio/dummy/iio_simple_dummy.c
index ad3410e528b6..62052479c349 100644
--- a/drivers/iio/dummy/iio_simple_dummy.c
+++ b/drivers/iio/dummy/iio_simple_dummy.c
@@ -26,7 +26,7 @@
 #include <linux/iio/sw_device.h>
 #include "iio_simple_dummy.h"
 
-static struct config_item_type iio_dummy_type = {
+static const struct config_item_type iio_dummy_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -519,7 +519,6 @@ static int iio_dummy_write_raw(struct iio_dev *indio_dev,
  * Device type specific information.
  */
 static const struct iio_info iio_dummy_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &iio_dummy_read_raw,
 	.write_raw = &iio_dummy_write_raw,
 #ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
diff --git a/drivers/iio/dummy/iio_simple_dummy_events.c b/drivers/iio/dummy/iio_simple_dummy_events.c
index ed63ffd849f8..7ec2a0bb0807 100644
--- a/drivers/iio/dummy/iio_simple_dummy_events.c
+++ b/drivers/iio/dummy/iio_simple_dummy_events.c
@@ -72,6 +72,7 @@ int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
 				st->event_en = state;
 			else
 				return -EINVAL;
+			break;
 		default:
 			return -EINVAL;
 		}
diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c
index 99eba524f6dd..ddb6a334ae68 100644
--- a/drivers/iio/frequency/ad9523.c
+++ b/drivers/iio/frequency/ad9523.c
@@ -738,7 +738,6 @@ static const struct iio_info ad9523_info = {
 	.write_raw = &ad9523_write_raw,
 	.debugfs_reg_access = &ad9523_reg_access,
 	.attrs = &ad9523_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad9523_setup(struct iio_dev *indio_dev)
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index d2d824b446f5..6d768431d90e 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -374,7 +374,6 @@ static const struct iio_chan_spec adf4350_chan = {
 
 static const struct iio_info adf4350_info = {
 	.debugfs_reg_access = &adf4350_reg_access,
-	.driver_module = THIS_MODULE,
 };
 
 #ifdef CONFIG_OF
diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile
index f0e149a606b0..295ec780c4eb 100644
--- a/drivers/iio/gyro/Makefile
+++ b/drivers/iio/gyro/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O gyroscope sensor drivers
 #
diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c
index ad31a1372a04..a551ebde4762 100644
--- a/drivers/iio/gyro/adis16080.c
+++ b/drivers/iio/gyro/adis16080.c
@@ -163,7 +163,6 @@ static const struct iio_chan_spec adis16080_channels[] = {
 
 static const struct iio_info adis16080_info = {
 	.read_raw = &adis16080_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 enum {
diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
index e5241f41e65e..aea80ab04122 100644
--- a/drivers/iio/gyro/adis16130.c
+++ b/drivers/iio/gyro/adis16130.c
@@ -137,7 +137,6 @@ static const struct iio_chan_spec adis16130_channels[] = {
 
 static const struct iio_info adis16130_info = {
 	.read_raw = &adis16130_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int adis16130_probe(struct spi_device *spi)
diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c
index b04faf93e1bc..90ec4bed62b7 100644
--- a/drivers/iio/gyro/adis16136.c
+++ b/drivers/iio/gyro/adis16136.c
@@ -398,7 +398,6 @@ static const struct attribute_group adis16136_attribute_group = {
 };
 
 static const struct iio_info adis16136_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &adis16136_attribute_group,
 	.read_raw = &adis16136_read_raw,
 	.write_raw = &adis16136_write_raw,
diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c
index 7da8825f4791..a8cb1ca349d9 100644
--- a/drivers/iio/gyro/adis16260.c
+++ b/drivers/iio/gyro/adis16260.c
@@ -321,7 +321,6 @@ static const struct iio_info adis16260_info = {
 	.read_raw = &adis16260_read_raw,
 	.write_raw = &adis16260_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const adis1620_status_error_msgs[] = {
diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
index a330d4288bb0..5d39fd008378 100644
--- a/drivers/iio/gyro/adxrs450.c
+++ b/drivers/iio/gyro/adxrs450.c
@@ -405,7 +405,6 @@ static const struct iio_chan_spec adxrs450_channels[2][2] = {
 };
 
 static const struct iio_info adxrs450_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &adxrs450_read_raw,
 	.write_raw = &adxrs450_write_raw,
 };
diff --git a/drivers/iio/gyro/bmg160.h b/drivers/iio/gyro/bmg160.h
index 72db723c8fb6..6bcff6562249 100644
--- a/drivers/iio/gyro/bmg160.h
+++ b/drivers/iio/gyro/bmg160.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BMG160_H_
 #define BMG160_H_
 
diff --git a/drivers/iio/gyro/bmg160_core.c b/drivers/iio/gyro/bmg160_core.c
index 821919dd245b..15046172e437 100644
--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -858,7 +858,6 @@ static const struct iio_info bmg160_info = {
 	.write_event_value	= bmg160_write_event,
 	.write_event_config	= bmg160_write_event_config,
 	.read_event_config	= bmg160_read_event_config,
-	.driver_module		= THIS_MODULE,
 };
 
 static const unsigned long bmg160_accel_scan_masks[] = {
@@ -956,7 +955,6 @@ static int bmg160_data_rdy_trigger_set_state(struct iio_trigger *trig,
 static const struct iio_trigger_ops bmg160_trigger_ops = {
 	.set_trigger_state = bmg160_data_rdy_trigger_set_state,
 	.try_reenable = bmg160_trig_try_reen,
-	.owner = THIS_MODULE,
 };
 
 static irqreturn_t bmg160_event_handler(int irq, void *private)
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index c67ce2ac4715..f59995a90387 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -186,7 +186,6 @@ static int gyro_3d_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info gyro_3d_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &gyro_3d_read_raw,
 	.write_raw = &gyro_3d_write_raw,
 };
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index eef50e91f17c..59770e5b6660 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -101,7 +101,6 @@ error_ret:
 }
 
 static const struct iio_trigger_ops itg3200_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &itg3200_data_rdy_trigger_set_state,
 };
 
diff --git a/drivers/iio/gyro/itg3200_core.c b/drivers/iio/gyro/itg3200_core.c
index cfa2db04a8ab..7adecb562c81 100644
--- a/drivers/iio/gyro/itg3200_core.c
+++ b/drivers/iio/gyro/itg3200_core.c
@@ -278,7 +278,6 @@ static const struct iio_chan_spec itg3200_channels[] = {
 static const struct iio_info itg3200_info = {
 	.read_raw = &itg3200_read_raw,
 	.write_raw = &itg3200_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const unsigned long itg3200_available_scan_masks[] = { 0xffffffff, 0x0 };
diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index e0d241a9aa30..77fac81a3adc 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -742,7 +742,6 @@ static const struct attribute_group mpu3050_attribute_group = {
 };
 
 static const struct iio_info mpu3050_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = mpu3050_read_raw,
 	.write_raw = mpu3050_write_raw,
 	.attrs = &mpu3050_attribute_group,
@@ -1032,7 +1031,6 @@ static int mpu3050_drdy_trigger_set_state(struct iio_trigger *trig,
 }
 
 static const struct iio_trigger_ops mpu3050_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = mpu3050_drdy_trigger_set_state,
 };
 
diff --git a/drivers/iio/gyro/mpu3050.h b/drivers/iio/gyro/mpu3050.h
index bef87a714dc5..835b0249c376 100644
--- a/drivers/iio/gyro/mpu3050.h
+++ b/drivers/iio/gyro/mpu3050.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/iio/iio.h>
 #include <linux/mutex.h>
 #include <linux/regmap.h>
diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index e366422e8512..b31064ba37b9 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -111,14 +111,23 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
 			.mask = 0x80,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int2 = 0x08,
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x08,
+			},
 			/*
 			 * The sensor has IHL (active low) and open
 			 * drain settings, but only for INT1 and not
 			 * for the DRDY line on INT2.
 			 */
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
 		},
 		.multi_read_bit = true,
 		.bootime = 2,
@@ -181,14 +190,23 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
 			.mask = 0x80,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int2 = 0x08,
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x08,
+			},
 			/*
 			 * The sensor has IHL (active low) and open
 			 * drain settings, but only for INT1 and not
 			 * for the DRDY line on INT2.
 			 */
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
 		},
 		.multi_read_bit = true,
 		.bootime = 2,
@@ -246,14 +264,23 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
 			.mask = 0x80,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int2 = 0x08,
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x08,
+			},
 			/*
 			 * The sensor has IHL (active low) and open
 			 * drain settings, but only for INT1 and not
 			 * for the DRDY line on INT2.
 			 */
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.sim = {
+			.addr = 0x23,
+			.value = BIT(0),
 		},
 		.multi_read_bit = true,
 		.bootime = 2,
@@ -326,7 +353,6 @@ static const struct attribute_group st_gyro_attribute_group = {
 };
 
 static const struct iio_info gyro_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &st_gyro_attribute_group,
 	.read_raw = &st_gyro_read_raw,
 	.write_raw = &st_gyro_write_raw,
@@ -335,7 +361,6 @@ static const struct iio_info gyro_info = {
 
 #ifdef CONFIG_IIO_TRIGGER
 static const struct iio_trigger_ops st_gyro_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = ST_GYRO_TRIGGER_SET_STATE,
 	.validate_device = st_sensors_validate_device,
 };
diff --git a/drivers/iio/health/afe4403.c b/drivers/iio/health/afe4403.c
index 6bb23a49e81e..a739fff01c6b 100644
--- a/drivers/iio/health/afe4403.c
+++ b/drivers/iio/health/afe4403.c
@@ -309,7 +309,6 @@ static const struct iio_info afe4403_iio_info = {
 	.attrs = &afe440x_attribute_group,
 	.read_raw = afe4403_read_raw,
 	.write_raw = afe4403_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t afe4403_trigger_handler(int irq, void *private)
@@ -354,7 +353,6 @@ err:
 }
 
 static const struct iio_trigger_ops afe4403_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 #define AFE4403_TIMING_PAIRS			\
diff --git a/drivers/iio/health/afe4404.c b/drivers/iio/health/afe4404.c
index 964f5231a831..11910922e655 100644
--- a/drivers/iio/health/afe4404.c
+++ b/drivers/iio/health/afe4404.c
@@ -328,7 +328,6 @@ static const struct iio_info afe4404_iio_info = {
 	.attrs = &afe440x_attribute_group,
 	.read_raw = afe4404_read_raw,
 	.write_raw = afe4404_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static irqreturn_t afe4404_trigger_handler(int irq, void *private)
@@ -355,7 +354,6 @@ err:
 }
 
 static const struct iio_trigger_ops afe4404_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 /* Default timings from data-sheet */
diff --git a/drivers/iio/health/max30100.c b/drivers/iio/health/max30100.c
index 849d71747f9f..91aef5df24a1 100644
--- a/drivers/iio/health/max30100.c
+++ b/drivers/iio/health/max30100.c
@@ -420,7 +420,6 @@ static int max30100_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info max30100_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = max30100_read_raw,
 };
 
diff --git a/drivers/iio/health/max30102.c b/drivers/iio/health/max30102.c
index 839b875c29b9..203ffb9cad6a 100644
--- a/drivers/iio/health/max30102.c
+++ b/drivers/iio/health/max30102.c
@@ -381,7 +381,6 @@ static int max30102_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info max30102_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = max30102_read_raw,
 };
 
diff --git a/drivers/iio/humidity/Makefile b/drivers/iio/humidity/Makefile
index be0dedeb8f3c..ae4204995017 100644
--- a/drivers/iio/humidity/Makefile
+++ b/drivers/iio/humidity/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for IIO humidity sensor drivers
 #
diff --git a/drivers/iio/humidity/am2315.c b/drivers/iio/humidity/am2315.c
index ff96b6d0fdae..7d8669dc6547 100644
--- a/drivers/iio/humidity/am2315.c
+++ b/drivers/iio/humidity/am2315.c
@@ -215,7 +215,6 @@ static int am2315_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info am2315_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= am2315_read_raw,
 };
 
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c
index 2a22ad920333..df6bab40d6fa 100644
--- a/drivers/iio/humidity/dht11.c
+++ b/drivers/iio/humidity/dht11.c
@@ -284,7 +284,6 @@ err:
 }
 
 static const struct iio_info dht11_iio_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= dht11_read_raw,
 };
 
diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c
index 7851bd90ef64..d8438310b6d4 100644
--- a/drivers/iio/humidity/hdc100x.c
+++ b/drivers/iio/humidity/hdc100x.c
@@ -357,7 +357,6 @@ static const struct iio_info hdc100x_info = {
 	.read_raw = hdc100x_read_raw,
 	.write_raw = hdc100x_write_raw,
 	.attrs = &hdc100x_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int hdc100x_probe(struct i2c_client *client,
diff --git a/drivers/iio/humidity/hid-sensor-humidity.c b/drivers/iio/humidity/hid-sensor-humidity.c
index 6e09c1acfe51..beab6d6fd6e1 100644
--- a/drivers/iio/humidity/hid-sensor-humidity.c
+++ b/drivers/iio/humidity/hid-sensor-humidity.c
@@ -125,7 +125,6 @@ static int humidity_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info humidity_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &humidity_read_raw,
 	.write_raw = &humidity_write_raw,
 };
diff --git a/drivers/iio/humidity/hts221_buffer.c b/drivers/iio/humidity/hts221_buffer.c
index 9690dfe9a844..e971ea425268 100644
--- a/drivers/iio/humidity/hts221_buffer.c
+++ b/drivers/iio/humidity/hts221_buffer.c
@@ -47,7 +47,6 @@ static int hts221_trig_set_state(struct iio_trigger *trig, bool state)
 }
 
 static const struct iio_trigger_ops hts221_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = hts221_trig_set_state,
 };
 
diff --git a/drivers/iio/humidity/hts221_core.c b/drivers/iio/humidity/hts221_core.c
index 32524a8dc66f..daef177219b6 100644
--- a/drivers/iio/humidity/hts221_core.c
+++ b/drivers/iio/humidity/hts221_core.c
@@ -573,7 +573,6 @@ static const struct attribute_group hts221_attribute_group = {
 };
 
 static const struct iio_info hts221_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &hts221_attribute_group,
 	.read_raw = hts221_read_raw,
 	.write_raw = hts221_write_raw,
diff --git a/drivers/iio/humidity/htu21.c b/drivers/iio/humidity/htu21.c
index 2c4b9be85a05..f5a2701ba6dd 100644
--- a/drivers/iio/humidity/htu21.c
+++ b/drivers/iio/humidity/htu21.c
@@ -175,7 +175,6 @@ static const struct iio_info htu21_info = {
 	.read_raw = htu21_read_raw,
 	.write_raw = htu21_write_raw,
 	.attrs = &htu21_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int htu21_probe(struct i2c_client *client,
diff --git a/drivers/iio/humidity/si7005.c b/drivers/iio/humidity/si7005.c
index 6297766e93d0..1fd19f035a5d 100644
--- a/drivers/iio/humidity/si7005.c
+++ b/drivers/iio/humidity/si7005.c
@@ -124,7 +124,6 @@ static const struct iio_chan_spec si7005_channels[] = {
 
 static const struct iio_info si7005_info = {
 	.read_raw = si7005_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int si7005_probe(struct i2c_client *client,
diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c
index 345a7656c5ef..1b2ec8df1a72 100644
--- a/drivers/iio/humidity/si7020.c
+++ b/drivers/iio/humidity/si7020.c
@@ -108,7 +108,6 @@ static const struct iio_chan_spec si7020_channels[] = {
 
 static const struct iio_info si7020_info = {
 	.read_raw = si7020_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int si7020_probe(struct i2c_client *client,
diff --git a/drivers/iio/imu/Makefile b/drivers/iio/imu/Makefile
index 8b563c3323b5..68629c68b19b 100644
--- a/drivers/iio/imu/Makefile
+++ b/drivers/iio/imu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Inertial Measurement Units
 #
diff --git a/drivers/iio/imu/adis16400_buffer.c b/drivers/iio/imu/adis16400_buffer.c
index 90c24a23c679..e70a5339acb1 100644
--- a/drivers/iio/imu/adis16400_buffer.c
+++ b/drivers/iio/imu/adis16400_buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
 #include <linux/kernel.h>
diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c
index 9b697d35dbef..46a569005a13 100644
--- a/drivers/iio/imu/adis16400_core.c
+++ b/drivers/iio/imu/adis16400_core.c
@@ -833,7 +833,6 @@ static struct adis16400_chip_info adis16400_chips[] = {
 };
 
 static const struct iio_info adis16400_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &adis16400_read_raw,
 	.write_raw = &adis16400_write_raw,
 	.update_scan_mode = adis16400_update_scan_mode,
diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index 12898424d838..7a33d6bd60e0 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -720,7 +720,6 @@ static const struct iio_info adis16480_info = {
 	.read_raw = &adis16480_read_raw,
 	.write_raw = &adis16480_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static int adis16480_stop_device(struct iio_dev *indio_dev)
diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c
index f53e9a803a0e..0dd5a381be64 100644
--- a/drivers/iio/imu/adis_trigger.c
+++ b/drivers/iio/imu/adis_trigger.c
@@ -25,7 +25,6 @@ static int adis_data_rdy_trigger_set_state(struct iio_trigger *trig,
 }
 
 static const struct iio_trigger_ops adis_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &adis_data_rdy_trigger_set_state,
 };
 
diff --git a/drivers/iio/imu/bmi160/bmi160.h b/drivers/iio/imu/bmi160/bmi160.h
index d2ae6ed70271..e7b11e74fd1d 100644
--- a/drivers/iio/imu/bmi160/bmi160.h
+++ b/drivers/iio/imu/bmi160/bmi160.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BMI160_H_
 #define BMI160_H_
 
diff --git a/drivers/iio/imu/bmi160/bmi160_core.c b/drivers/iio/imu/bmi160/bmi160_core.c
index cfd225ed1c8d..c85659ca9507 100644
--- a/drivers/iio/imu/bmi160/bmi160_core.c
+++ b/drivers/iio/imu/bmi160/bmi160_core.c
@@ -482,7 +482,6 @@ static const struct attribute_group bmi160_attrs_group = {
 };
 
 static const struct iio_info bmi160_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = bmi160_read_raw,
 	.write_raw = bmi160_write_raw,
 	.attrs = &bmi160_attrs_group,
diff --git a/drivers/iio/imu/inv_mpu6050/Makefile b/drivers/iio/imu/inv_mpu6050/Makefile
index 734af5e6cef9..70ffe0d13d8c 100644
--- a/drivers/iio/imu/inv_mpu6050/Makefile
+++ b/drivers/iio/imu/inv_mpu6050/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Invensense MPU6050 device.
 #
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 44830bce13df..7d64be353403 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -542,7 +542,9 @@ static int inv_mpu6050_write_raw(struct iio_dev *indio_dev,
 			break;
 		default:
 			result = -EINVAL;
+			break;
 		}
+		break;
 	default:
 		result = -EINVAL;
 		break;
@@ -570,10 +572,12 @@ error_write_raw_unlock:
  */
 static int inv_mpu6050_set_lpf(struct inv_mpu6050_state *st, int rate)
 {
-	const int hz[] = {188, 98, 42, 20, 10, 5};
-	const int d[] = {INV_MPU6050_FILTER_188HZ, INV_MPU6050_FILTER_98HZ,
-			INV_MPU6050_FILTER_42HZ, INV_MPU6050_FILTER_20HZ,
-			INV_MPU6050_FILTER_10HZ, INV_MPU6050_FILTER_5HZ};
+	static const int hz[] = {188, 98, 42, 20, 10, 5};
+	static const int d[] = {
+		INV_MPU6050_FILTER_188HZ, INV_MPU6050_FILTER_98HZ,
+		INV_MPU6050_FILTER_42HZ, INV_MPU6050_FILTER_20HZ,
+		INV_MPU6050_FILTER_10HZ, INV_MPU6050_FILTER_5HZ
+	};
 	int i, h, result;
 	u8 data;
 
@@ -795,7 +799,6 @@ static const struct attribute_group inv_attribute_group = {
 };
 
 static const struct iio_info mpu_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &inv_mpu6050_read_raw,
 	.write_raw = &inv_mpu6050_write_raw,
 	.write_raw_get_fmt = &inv_write_raw_get_fmt,
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
index 540070f0a230..f963f9fc98c0 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
@@ -114,7 +114,6 @@ static int inv_mpu_data_rdy_trigger_set_state(struct iio_trigger *trig,
 }
 
 static const struct iio_trigger_ops inv_mpu_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &inv_mpu_data_rdy_trigger_set_state,
 };
 
diff --git a/drivers/iio/imu/kmx61.c b/drivers/iio/imu/kmx61.c
index 2e7dd5754a56..44b3f5397343 100644
--- a/drivers/iio/imu/kmx61.c
+++ b/drivers/iio/imu/kmx61.c
@@ -1003,7 +1003,6 @@ static int kmx61_mag_validate_trigger(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info kmx61_acc_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= kmx61_read_raw,
 	.write_raw		= kmx61_write_raw,
 	.attrs			= &kmx61_acc_attribute_group,
@@ -1015,7 +1014,6 @@ static const struct iio_info kmx61_acc_info = {
 };
 
 static const struct iio_info kmx61_mag_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= kmx61_read_raw,
 	.write_raw		= kmx61_write_raw,
 	.attrs			= &kmx61_mag_attribute_group,
@@ -1087,7 +1085,6 @@ static int kmx61_trig_try_reenable(struct iio_trigger *trig)
 static const struct iio_trigger_ops kmx61_trigger_ops = {
 	.set_trigger_state = kmx61_data_rdy_trigger_set_state,
 	.try_reenable = kmx61_trig_try_reenable,
-	.owner = THIS_MODULE,
 };
 
 static irqreturn_t kmx61_event_handler(int irq, void *private)
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
index 46352c7bff43..4fdb7fcc3ea8 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h
@@ -29,8 +29,6 @@ enum st_lsm6dsx_hw_id {
 
 #define ST_LSM6DSX_CHAN_SIZE		2
 #define ST_LSM6DSX_SAMPLE_SIZE		6
-#define ST_LSM6DSX_SAMPLE_DEPTH		(ST_LSM6DSX_SAMPLE_SIZE / \
-					 ST_LSM6DSX_CHAN_SIZE)
 
 #if defined(CONFIG_SPI_MASTER)
 #define ST_LSM6DSX_RX_MAX_LENGTH	256
@@ -52,10 +50,38 @@ struct st_lsm6dsx_reg {
 	u8 mask;
 };
 
+/**
+ * struct st_lsm6dsx_fifo_ops - ST IMU FIFO settings
+ * @fifo_th: FIFO threshold register info (addr + mask).
+ * @fifo_diff: FIFO diff status register info (addr + mask).
+ * @th_wl: FIFO threshold word length.
+ */
+struct st_lsm6dsx_fifo_ops {
+	struct {
+		u8 addr;
+		u16 mask;
+	} fifo_th;
+	struct {
+		u8 addr;
+		u16 mask;
+	} fifo_diff;
+	u8 th_wl;
+};
+
+/**
+ * struct st_lsm6dsx_settings - ST IMU sensor settings
+ * @wai: Sensor WhoAmI default value.
+ * @max_fifo_size: Sensor max fifo length in FIFO words.
+ * @id: List of hw id supported by the driver configuration.
+ * @decimator: List of decimator register info (addr + mask).
+ * @fifo_ops: Sensor hw FIFO parameters.
+ */
 struct st_lsm6dsx_settings {
 	u8 wai;
 	u16 max_fifo_size;
 	enum st_lsm6dsx_hw_id id[ST_LSM6DSX_MAX_ID];
+	struct st_lsm6dsx_reg decimator[ST_LSM6DSX_MAX_ID];
+	struct st_lsm6dsx_fifo_ops fifo_ops;
 };
 
 enum st_lsm6dsx_sensor_id {
@@ -79,7 +105,6 @@ enum st_lsm6dsx_fifo_mode {
  * @watermark: Sensor watermark level.
  * @sip: Number of samples in a given pattern.
  * @decimator: FIFO decimation factor.
- * @decimator_mask: Sensor mask for decimation register.
  * @delta_ts: Delta time between two consecutive interrupts.
  * @ts: Latest timestamp from the interrupt handler.
  */
@@ -94,7 +119,6 @@ struct st_lsm6dsx_sensor {
 	u16 watermark;
 	u8 sip;
 	u8 decimator;
-	u8 decimator_mask;
 
 	s64 delta_ts;
 	s64 ts;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
index e2737dc71b67..755c472e8a05 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c
@@ -35,10 +35,6 @@
 
 #include "st_lsm6dsx.h"
 
-#define ST_LSM6DSX_REG_FIFO_THL_ADDR		0x06
-#define ST_LSM6DSX_REG_FIFO_THH_ADDR		0x07
-#define ST_LSM6DSX_FIFO_TH_MASK			GENMASK(11, 0)
-#define ST_LSM6DSX_REG_FIFO_DEC_GXL_ADDR	0x08
 #define ST_LSM6DSX_REG_HLACTIVE_ADDR		0x12
 #define ST_LSM6DSX_REG_HLACTIVE_MASK		BIT(5)
 #define ST_LSM6DSX_REG_PP_OD_ADDR		0x12
@@ -46,8 +42,6 @@
 #define ST_LSM6DSX_REG_FIFO_MODE_ADDR		0x0a
 #define ST_LSM6DSX_FIFO_MODE_MASK		GENMASK(2, 0)
 #define ST_LSM6DSX_FIFO_ODR_MASK		GENMASK(6, 3)
-#define ST_LSM6DSX_REG_FIFO_DIFFL_ADDR		0x3a
-#define ST_LSM6DSX_FIFO_DIFF_MASK		GENMASK(11, 0)
 #define ST_LSM6DSX_FIFO_EMPTY_MASK		BIT(12)
 #define ST_LSM6DSX_REG_FIFO_OUTL_ADDR		0x3e
 
@@ -110,8 +104,9 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw)
 	st_lsm6dsx_get_max_min_odr(hw, &max_odr, &min_odr);
 
 	for (i = 0; i < ST_LSM6DSX_ID_MAX; i++) {
-		sensor = iio_priv(hw->iio_devs[i]);
+		const struct st_lsm6dsx_reg *dec_reg;
 
+		sensor = iio_priv(hw->iio_devs[i]);
 		/* update fifo decimators and sample in pattern */
 		if (hw->enable_mask & BIT(sensor->id)) {
 			sensor->sip = sensor->odr / min_odr;
@@ -123,12 +118,13 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw)
 			data = 0;
 		}
 
-		err = st_lsm6dsx_write_with_mask(hw,
-					ST_LSM6DSX_REG_FIFO_DEC_GXL_ADDR,
-					sensor->decimator_mask, data);
-		if (err < 0)
-			return err;
-
+		dec_reg = &hw->settings->decimator[sensor->id];
+		if (dec_reg->addr) {
+			err = st_lsm6dsx_write_with_mask(hw, dec_reg->addr,
+							 dec_reg->mask, data);
+			if (err < 0)
+				return err;
+		}
 		sip += sensor->sip;
 	}
 	hw->sip = sip;
@@ -139,23 +135,10 @@ static int st_lsm6dsx_update_decimators(struct st_lsm6dsx_hw *hw)
 int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
 			     enum st_lsm6dsx_fifo_mode fifo_mode)
 {
-	u8 data;
 	int err;
 
-	switch (fifo_mode) {
-	case ST_LSM6DSX_FIFO_BYPASS:
-		data = fifo_mode;
-		break;
-	case ST_LSM6DSX_FIFO_CONT:
-		data = (ST_LSM6DSX_MAX_FIFO_ODR_VAL <<
-			__ffs(ST_LSM6DSX_FIFO_ODR_MASK)) | fifo_mode;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	err = hw->tf->write(hw->dev, ST_LSM6DSX_REG_FIFO_MODE_ADDR,
-			    sizeof(data), &data);
+	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR,
+					 ST_LSM6DSX_FIFO_MODE_MASK, fifo_mode);
 	if (err < 0)
 		return err;
 
@@ -164,9 +147,20 @@ int st_lsm6dsx_set_fifo_mode(struct st_lsm6dsx_hw *hw,
 	return 0;
 }
 
+static int st_lsm6dsx_set_fifo_odr(struct st_lsm6dsx_sensor *sensor,
+				   bool enable)
+{
+	struct st_lsm6dsx_hw *hw = sensor->hw;
+	u8 data;
+
+	data = hw->enable_mask ? ST_LSM6DSX_MAX_FIFO_ODR_VAL : 0;
+	return st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_FIFO_MODE_ADDR,
+					  ST_LSM6DSX_FIFO_ODR_MASK, data);
+}
+
 int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
 {
-	u16 fifo_watermark = ~0, cur_watermark, sip = 0;
+	u16 fifo_watermark = ~0, cur_watermark, sip = 0, fifo_th_mask;
 	struct st_lsm6dsx_hw *hw = sensor->hw;
 	struct st_lsm6dsx_sensor *cur_sensor;
 	__le16 wdata;
@@ -191,20 +185,21 @@ int st_lsm6dsx_update_watermark(struct st_lsm6dsx_sensor *sensor, u16 watermark)
 
 	fifo_watermark = max_t(u16, fifo_watermark, sip);
 	fifo_watermark = (fifo_watermark / sip) * sip;
-	fifo_watermark = fifo_watermark * ST_LSM6DSX_SAMPLE_DEPTH;
+	fifo_watermark = fifo_watermark * hw->settings->fifo_ops.th_wl;
 
 	mutex_lock(&hw->lock);
 
-	err = hw->tf->read(hw->dev, ST_LSM6DSX_REG_FIFO_THH_ADDR,
+	err = hw->tf->read(hw->dev, hw->settings->fifo_ops.fifo_th.addr + 1,
 			   sizeof(data), &data);
 	if (err < 0)
 		goto out;
 
-	fifo_watermark = ((data << 8) & ~ST_LSM6DSX_FIFO_TH_MASK) |
-			 (fifo_watermark & ST_LSM6DSX_FIFO_TH_MASK);
+	fifo_th_mask = hw->settings->fifo_ops.fifo_th.mask;
+	fifo_watermark = ((data << 8) & ~fifo_th_mask) |
+			 (fifo_watermark & fifo_th_mask);
 
 	wdata = cpu_to_le16(fifo_watermark);
-	err = hw->tf->write(hw->dev, ST_LSM6DSX_REG_FIFO_THL_ADDR,
+	err = hw->tf->write(hw->dev, hw->settings->fifo_ops.fifo_th.addr,
 			    sizeof(wdata), (u8 *)&wdata);
 out:
 	mutex_unlock(&hw->lock);
@@ -223,6 +218,7 @@ out:
 static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 {
 	u16 fifo_len, pattern_len = hw->sip * ST_LSM6DSX_SAMPLE_SIZE;
+	u16 fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask;
 	int err, acc_sip, gyro_sip, read_len, samples, offset;
 	struct st_lsm6dsx_sensor *acc_sensor, *gyro_sensor;
 	s64 acc_ts, acc_delta_ts, gyro_ts, gyro_delta_ts;
@@ -230,7 +226,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 	u8 buff[pattern_len];
 	__le16 fifo_status;
 
-	err = hw->tf->read(hw->dev, ST_LSM6DSX_REG_FIFO_DIFFL_ADDR,
+	err = hw->tf->read(hw->dev, hw->settings->fifo_ops.fifo_diff.addr,
 			   sizeof(fifo_status), (u8 *)&fifo_status);
 	if (err < 0)
 		return err;
@@ -238,7 +234,7 @@ static int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw)
 	if (fifo_status & cpu_to_le16(ST_LSM6DSX_FIFO_EMPTY_MASK))
 		return 0;
 
-	fifo_len = (le16_to_cpu(fifo_status) & ST_LSM6DSX_FIFO_DIFF_MASK) *
+	fifo_len = (le16_to_cpu(fifo_status) & fifo_diff_mask) *
 		   ST_LSM6DSX_CHAN_SIZE;
 	samples = fifo_len / ST_LSM6DSX_SAMPLE_SIZE;
 	fifo_len = (fifo_len / pattern_len) * pattern_len;
@@ -345,6 +341,10 @@ static int st_lsm6dsx_update_fifo(struct iio_dev *iio_dev, bool enable)
 			return err;
 	}
 
+	err = st_lsm6dsx_set_fifo_odr(sensor, enable);
+	if (err < 0)
+		return err;
+
 	err = st_lsm6dsx_update_decimators(hw);
 	if (err < 0)
 		return err;
diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
index b485540da89e..239c735242be 100644
--- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
+++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
@@ -42,8 +42,6 @@
 
 #include "st_lsm6dsx.h"
 
-#define ST_LSM6DSX_REG_ACC_DEC_MASK		GENMASK(2, 0)
-#define ST_LSM6DSX_REG_GYRO_DEC_MASK		GENMASK(5, 3)
 #define ST_LSM6DSX_REG_INT1_ADDR		0x0d
 #define ST_LSM6DSX_REG_INT2_ADDR		0x0e
 #define ST_LSM6DSX_REG_FIFO_FTH_IRQ_MASK	BIT(3)
@@ -54,10 +52,6 @@
 #define ST_LSM6DSX_REG_BDU_MASK			BIT(6)
 #define ST_LSM6DSX_REG_INT2_ON_INT1_ADDR	0x13
 #define ST_LSM6DSX_REG_INT2_ON_INT1_MASK	BIT(5)
-#define ST_LSM6DSX_REG_ROUNDING_ADDR		0x16
-#define ST_LSM6DSX_REG_ROUNDING_MASK		BIT(2)
-#define ST_LSM6DSX_REG_LIR_ADDR			0x58
-#define ST_LSM6DSX_REG_LIR_MASK			BIT(0)
 
 #define ST_LSM6DSX_REG_ACC_ODR_ADDR		0x10
 #define ST_LSM6DSX_REG_ACC_ODR_MASK		GENMASK(7, 4)
@@ -160,25 +154,88 @@ static const struct st_lsm6dsx_fs_table_entry st_lsm6dsx_fs_table[] = {
 static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = {
 	{
 		.wai = 0x69,
-		.max_fifo_size = 8192,
+		.max_fifo_size = 1365,
 		.id = {
 			[0] = ST_LSM6DS3_ID,
 		},
+		.decimator = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.addr = 0x08,
+				.mask = GENMASK(2, 0),
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.addr = 0x08,
+				.mask = GENMASK(5, 3),
+			},
+		},
+		.fifo_ops = {
+			.fifo_th = {
+				.addr = 0x06,
+				.mask = GENMASK(11, 0),
+			},
+			.fifo_diff = {
+				.addr = 0x3a,
+				.mask = GENMASK(11, 0),
+			},
+			.th_wl = 3, /* 1LSB = 2B */
+		},
 	},
 	{
 		.wai = 0x69,
-		.max_fifo_size = 4096,
+		.max_fifo_size = 682,
 		.id = {
 			[0] = ST_LSM6DS3H_ID,
 		},
+		.decimator = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.addr = 0x08,
+				.mask = GENMASK(2, 0),
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.addr = 0x08,
+				.mask = GENMASK(5, 3),
+			},
+		},
+		.fifo_ops = {
+			.fifo_th = {
+				.addr = 0x06,
+				.mask = GENMASK(11, 0),
+			},
+			.fifo_diff = {
+				.addr = 0x3a,
+				.mask = GENMASK(11, 0),
+			},
+			.th_wl = 3, /* 1LSB = 2B */
+		},
 	},
 	{
 		.wai = 0x6a,
-		.max_fifo_size = 4096,
+		.max_fifo_size = 682,
 		.id = {
 			[0] = ST_LSM6DSL_ID,
 			[1] = ST_LSM6DSM_ID,
 		},
+		.decimator = {
+			[ST_LSM6DSX_ID_ACC] = {
+				.addr = 0x08,
+				.mask = GENMASK(2, 0),
+			},
+			[ST_LSM6DSX_ID_GYRO] = {
+				.addr = 0x08,
+				.mask = GENMASK(5, 3),
+			},
+		},
+		.fifo_ops = {
+			.fifo_th = {
+				.addr = 0x06,
+				.mask = GENMASK(11, 0),
+			},
+			.fifo_diff = {
+				.addr = 0x3a,
+				.mask = GENMASK(11, 0),
+			},
+			.th_wl = 3, /* 1LSB = 2B */
+		},
 	},
 };
 
@@ -322,7 +379,6 @@ static int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr,
 		return -EINVAL;
 
 	*val = st_lsm6dsx_odr_table[sensor->id].odr_avl[i].val;
-	sensor->odr = odr;
 
 	return 0;
 }
@@ -449,6 +505,8 @@ static int st_lsm6dsx_write_raw(struct iio_dev *iio_dev,
 		u8 data;
 
 		err = st_lsm6dsx_check_odr(sensor, val, &data);
+		if (!err)
+			sensor->odr = val;
 		break;
 	}
 	default:
@@ -465,10 +523,9 @@ static int st_lsm6dsx_set_watermark(struct iio_dev *iio_dev, unsigned int val)
 {
 	struct st_lsm6dsx_sensor *sensor = iio_priv(iio_dev);
 	struct st_lsm6dsx_hw *hw = sensor->hw;
-	int err, max_fifo_len;
+	int err;
 
-	max_fifo_len = hw->settings->max_fifo_size / ST_LSM6DSX_SAMPLE_SIZE;
-	if (val < 1 || val > max_fifo_len)
+	if (val < 1 || val > hw->settings->max_fifo_size)
 		return -EINVAL;
 
 	err = st_lsm6dsx_update_watermark(sensor, val);
@@ -530,7 +587,6 @@ static const struct attribute_group st_lsm6dsx_acc_attribute_group = {
 };
 
 static const struct iio_info st_lsm6dsx_acc_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &st_lsm6dsx_acc_attribute_group,
 	.read_raw = st_lsm6dsx_read_raw,
 	.write_raw = st_lsm6dsx_write_raw,
@@ -548,7 +604,6 @@ static const struct attribute_group st_lsm6dsx_gyro_attribute_group = {
 };
 
 static const struct iio_info st_lsm6dsx_gyro_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &st_lsm6dsx_gyro_attribute_group,
 	.read_raw = st_lsm6dsx_read_raw,
 	.write_raw = st_lsm6dsx_write_raw,
@@ -608,23 +663,12 @@ static int st_lsm6dsx_init_device(struct st_lsm6dsx_hw *hw)
 
 	msleep(200);
 
-	/* latch interrupts */
-	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_LIR_ADDR,
-					 ST_LSM6DSX_REG_LIR_MASK, 1);
-	if (err < 0)
-		return err;
-
 	/* enable Block Data Update */
 	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_BDU_ADDR,
 					 ST_LSM6DSX_REG_BDU_MASK, 1);
 	if (err < 0)
 		return err;
 
-	err = st_lsm6dsx_write_with_mask(hw, ST_LSM6DSX_REG_ROUNDING_ADDR,
-					 ST_LSM6DSX_REG_ROUNDING_MASK, 1);
-	if (err < 0)
-		return err;
-
 	/* enable FIFO watermak interrupt */
 	err = st_lsm6dsx_get_drdy_reg(hw, &drdy_int_reg);
 	if (err < 0)
@@ -662,7 +706,6 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw,
 		iio_dev->num_channels = ARRAY_SIZE(st_lsm6dsx_acc_channels);
 		iio_dev->info = &st_lsm6dsx_acc_info;
 
-		sensor->decimator_mask = ST_LSM6DSX_REG_ACC_DEC_MASK;
 		scnprintf(sensor->name, sizeof(sensor->name), "%s_accel",
 			  name);
 		break;
@@ -671,7 +714,6 @@ static struct iio_dev *st_lsm6dsx_alloc_iiodev(struct st_lsm6dsx_hw *hw,
 		iio_dev->num_channels = ARRAY_SIZE(st_lsm6dsx_gyro_channels);
 		iio_dev->info = &st_lsm6dsx_gyro_info;
 
-		sensor->decimator_mask = ST_LSM6DSX_REG_GYRO_DEC_MASK;
 		scnprintf(sensor->name, sizeof(sensor->name), "%s_gyro",
 			  name);
 		break;
diff --git a/drivers/iio/industrialio-configfs.c b/drivers/iio/industrialio-configfs.c
index 45ce2bc47180..5a0aae119369 100644
--- a/drivers/iio/industrialio-configfs.c
+++ b/drivers/iio/industrialio-configfs.c
@@ -17,7 +17,7 @@
 #include <linux/iio/iio.h>
 #include <linux/iio/configfs.h>
 
-static struct config_item_type iio_root_group_type = {
+static const struct config_item_type iio_root_group_type = {
 	.ct_owner       = THIS_MODULE,
 };
 
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 17ec4cee51dc..9c4cfd19b739 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -310,8 +310,10 @@ static ssize_t iio_debugfs_read_reg(struct file *file, char __user *userbuf,
 	ret = indio_dev->info->debugfs_reg_access(indio_dev,
 						  indio_dev->cached_reg_addr,
 						  0, &val);
-	if (ret)
+	if (ret) {
 		dev_err(indio_dev->dev.parent, "%s: read failed\n", __func__);
+		return ret;
+	}
 
 	len = snprintf(buf, sizeof(buf), "0x%X\n", val);
 
@@ -1660,14 +1662,11 @@ static int iio_check_unique_scan_index(struct iio_dev *indio_dev)
 
 static const struct iio_buffer_setup_ops noop_ring_setup_ops;
 
-/**
- * iio_device_register() - register a device with the IIO subsystem
- * @indio_dev:		Device structure filled by the device driver
- **/
-int iio_device_register(struct iio_dev *indio_dev)
+int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod)
 {
 	int ret;
 
+	indio_dev->driver_module = this_mod;
 	/* If the calling driver did not initialize of_node, do it here */
 	if (!indio_dev->dev.of_node && indio_dev->dev.parent)
 		indio_dev->dev.of_node = indio_dev->dev.parent->of_node;
@@ -1713,7 +1712,8 @@ int iio_device_register(struct iio_dev *indio_dev)
 		indio_dev->setup_ops = &noop_ring_setup_ops;
 
 	cdev_init(&indio_dev->chrdev, &iio_buffer_fileops);
-	indio_dev->chrdev.owner = indio_dev->info->driver_module;
+
+	indio_dev->chrdev.owner = this_mod;
 
 	ret = cdev_device_add(&indio_dev->chrdev, &indio_dev->dev);
 	if (ret < 0)
@@ -1731,7 +1731,7 @@ error_unreg_debugfs:
 	iio_device_unregister_debugfs(indio_dev);
 	return ret;
 }
-EXPORT_SYMBOL(iio_device_register);
+EXPORT_SYMBOL(__iio_device_register);
 
 /**
  * iio_device_unregister() - unregister a device from the IIO subsystem
@@ -1763,23 +1763,8 @@ static void devm_iio_device_unreg(struct device *dev, void *res)
 	iio_device_unregister(*(struct iio_dev **)res);
 }
 
-/**
- * devm_iio_device_register - Resource-managed iio_device_register()
- * @dev:	Device to allocate iio_dev for
- * @indio_dev:	Device structure filled by the device driver
- *
- * Managed iio_device_register.  The IIO device registered with this
- * function is automatically unregistered on driver detach. This function
- * calls iio_device_register() internally. Refer to that function for more
- * information.
- *
- * If an iio_dev registered with this function needs to be unregistered
- * separately, devm_iio_device_unregister() must be used.
- *
- * RETURNS:
- * 0 on success, negative error number on failure.
- */
-int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev)
+int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
+			       struct module *this_mod)
 {
 	struct iio_dev **ptr;
 	int ret;
@@ -1789,7 +1774,7 @@ int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev)
 		return -ENOMEM;
 
 	*ptr = indio_dev;
-	ret = iio_device_register(indio_dev);
+	ret = __iio_device_register(indio_dev, this_mod);
 	if (!ret)
 		devres_add(dev, ptr);
 	else
@@ -1797,7 +1782,7 @@ int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(devm_iio_device_register);
+EXPORT_SYMBOL_GPL(__devm_iio_device_register);
 
 /**
  * devm_iio_device_unregister - Resource-managed iio_device_unregister()
diff --git a/drivers/iio/industrialio-sw-device.c b/drivers/iio/industrialio-sw-device.c
index 81b49cfca452..90df97c542f6 100644
--- a/drivers/iio/industrialio-sw-device.c
+++ b/drivers/iio/industrialio-sw-device.c
@@ -19,9 +19,9 @@
 #include <linux/configfs.h>
 
 static struct config_group *iio_devices_group;
-static struct config_item_type iio_device_type_group_type;
+static const struct config_item_type iio_device_type_group_type;
 
-static struct config_item_type iio_devices_group_type = {
+static const struct config_item_type iio_devices_group_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -156,7 +156,7 @@ static struct configfs_group_operations device_ops = {
 	.drop_item	= &device_drop_group,
 };
 
-static struct config_item_type iio_device_type_group_type = {
+static const struct config_item_type iio_device_type_group_type = {
 	.ct_group_ops = &device_ops,
 	.ct_owner       = THIS_MODULE,
 };
diff --git a/drivers/iio/industrialio-sw-trigger.c b/drivers/iio/industrialio-sw-trigger.c
index 8d24fb159cc9..bc6b7fb43e3a 100644
--- a/drivers/iio/industrialio-sw-trigger.c
+++ b/drivers/iio/industrialio-sw-trigger.c
@@ -19,9 +19,9 @@
 #include <linux/configfs.h>
 
 static struct config_group *iio_triggers_group;
-static struct config_item_type iio_trigger_type_group_type;
+static const struct config_item_type iio_trigger_type_group_type;
 
-static struct config_item_type iio_triggers_group_type = {
+static const struct config_item_type iio_triggers_group_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -156,7 +156,7 @@ static struct configfs_group_operations trigger_ops = {
 	.drop_item	= &trigger_drop_group,
 };
 
-static struct config_item_type iio_trigger_type_group_type = {
+static const struct config_item_type iio_trigger_type_group_type = {
 	.ct_group_ops = &trigger_ops,
 	.ct_owner       = THIS_MODULE,
 };
diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c
index 4061fed93f1f..ce66699c7fcc 100644
--- a/drivers/iio/industrialio-trigger.c
+++ b/drivers/iio/industrialio-trigger.c
@@ -66,13 +66,12 @@ ATTRIBUTE_GROUPS(iio_trig_dev);
 
 static struct iio_trigger *__iio_trigger_find_by_name(const char *name);
 
-int iio_trigger_register(struct iio_trigger *trig_info)
+int __iio_trigger_register(struct iio_trigger *trig_info,
+			   struct module *this_mod)
 {
 	int ret;
 
-	/* trig_info->ops is required for the module member */
-	if (!trig_info->ops)
-		return -EINVAL;
+	trig_info->owner = this_mod;
 
 	trig_info->id = ida_simple_get(&iio_trigger_ida, 0, 0, GFP_KERNEL);
 	if (trig_info->id < 0)
@@ -105,7 +104,7 @@ error_unregister_id:
 	ida_simple_remove(&iio_trigger_ida, trig_info->id);
 	return ret;
 }
-EXPORT_SYMBOL(iio_trigger_register);
+EXPORT_SYMBOL(__iio_trigger_register);
 
 void iio_trigger_unregister(struct iio_trigger *trig_info)
 {
@@ -206,7 +205,8 @@ EXPORT_SYMBOL(iio_trigger_poll_chained);
 
 void iio_trigger_notify_done(struct iio_trigger *trig)
 {
-	if (atomic_dec_and_test(&trig->use_count) && trig->ops->try_reenable)
+	if (atomic_dec_and_test(&trig->use_count) && trig->ops &&
+	    trig->ops->try_reenable)
 		if (trig->ops->try_reenable(trig))
 			/* Missed an interrupt so launch new poll now */
 			iio_trigger_poll(trig);
@@ -250,7 +250,7 @@ static int iio_trigger_attach_poll_func(struct iio_trigger *trig,
 		= bitmap_empty(trig->pool, CONFIG_IIO_CONSUMERS_PER_TRIGGER);
 
 	/* Prevent the module from being removed whilst attached to a trigger */
-	__module_get(pf->indio_dev->info->driver_module);
+	__module_get(pf->indio_dev->driver_module);
 
 	/* Get irq number */
 	pf->irq = iio_trigger_get_irq(trig);
@@ -265,7 +265,7 @@ static int iio_trigger_attach_poll_func(struct iio_trigger *trig,
 		goto out_put_irq;
 
 	/* Enable trigger in driver */
-	if (trig->ops->set_trigger_state && notinuse) {
+	if (trig->ops && trig->ops->set_trigger_state && notinuse) {
 		ret = trig->ops->set_trigger_state(trig, true);
 		if (ret < 0)
 			goto out_free_irq;
@@ -286,7 +286,7 @@ out_free_irq:
 out_put_irq:
 	iio_trigger_put_irq(trig, pf->irq);
 out_put_module:
-	module_put(pf->indio_dev->info->driver_module);
+	module_put(pf->indio_dev->driver_module);
 	return ret;
 }
 
@@ -298,7 +298,7 @@ static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
 		= (bitmap_weight(trig->pool,
 				 CONFIG_IIO_CONSUMERS_PER_TRIGGER)
 		   == 1);
-	if (trig->ops->set_trigger_state && no_other_users) {
+	if (trig->ops && trig->ops->set_trigger_state && no_other_users) {
 		ret = trig->ops->set_trigger_state(trig, false);
 		if (ret)
 			return ret;
@@ -307,7 +307,7 @@ static int iio_trigger_detach_poll_func(struct iio_trigger *trig,
 		trig->attached_own_device = false;
 	iio_trigger_put_irq(trig, pf->irq);
 	free_irq(pf->irq, pf);
-	module_put(pf->indio_dev->info->driver_module);
+	module_put(pf->indio_dev->driver_module);
 
 	return ret;
 }
@@ -428,7 +428,7 @@ static ssize_t iio_trigger_write_current(struct device *dev,
 			goto out_trigger_put;
 	}
 
-	if (trig && trig->ops->validate_device) {
+	if (trig && trig->ops && trig->ops->validate_device) {
 		ret = trig->ops->validate_device(trig, indio_dev);
 		if (ret)
 			goto out_trigger_put;
@@ -663,9 +663,10 @@ static void devm_iio_trigger_unreg(struct device *dev, void *res)
 }
 
 /**
- * devm_iio_trigger_register - Resource-managed iio_trigger_register()
+ * __devm_iio_trigger_register - Resource-managed iio_trigger_register()
  * @dev:	device this trigger was allocated for
  * @trig_info:	trigger to register
+ * @this_mod:   module registering the trigger
  *
  * Managed iio_trigger_register().  The IIO trigger registered with this
  * function is automatically unregistered on driver detach. This function
@@ -678,7 +679,9 @@ static void devm_iio_trigger_unreg(struct device *dev, void *res)
  * RETURNS:
  * 0 on success, negative error number on failure.
  */
-int devm_iio_trigger_register(struct device *dev, struct iio_trigger *trig_info)
+int __devm_iio_trigger_register(struct device *dev,
+				struct iio_trigger *trig_info,
+				struct module *this_mod)
 {
 	struct iio_trigger **ptr;
 	int ret;
@@ -688,7 +691,7 @@ int devm_iio_trigger_register(struct device *dev, struct iio_trigger *trig_info)
 		return -ENOMEM;
 
 	*ptr = trig_info;
-	ret = iio_trigger_register(trig_info);
+	ret = __iio_trigger_register(trig_info, this_mod);
 	if (!ret)
 		devres_add(dev, ptr);
 	else
@@ -696,7 +699,7 @@ int devm_iio_trigger_register(struct device *dev, struct iio_trigger *trig_info)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(devm_iio_trigger_register);
+EXPORT_SYMBOL_GPL(__devm_iio_trigger_register);
 
 /**
  * devm_iio_trigger_unregister - Resource-managed iio_trigger_unregister()
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index fa32fa459e2e..c263469b7ce9 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for IIO Light sensors
 #
diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c
index f0b47c501f4e..c35e2f8df339 100644
--- a/drivers/iio/light/acpi-als.c
+++ b/drivers/iio/light/acpi-als.c
@@ -171,7 +171,6 @@ static int acpi_als_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info acpi_als_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= acpi_als_read_raw,
 };
 
diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index 0113fc843a81..e45bb6a277c2 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -245,7 +245,6 @@ static const struct iio_info adjd_s311_info = {
 	.read_raw = adjd_s311_read_raw,
 	.write_raw = adjd_s311_write_raw,
 	.update_scan_mode = adjd_s311_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static int adjd_s311_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/al3320a.c b/drivers/iio/light/al3320a.c
index 6aac6513fd41..66623facea9a 100644
--- a/drivers/iio/light/al3320a.c
+++ b/drivers/iio/light/al3320a.c
@@ -168,7 +168,6 @@ static int al3320a_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info al3320a_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= al3320a_read_raw,
 	.write_raw	= al3320a_write_raw,
 	.attrs		= &al3320a_attribute_group,
diff --git a/drivers/iio/light/apds9300.c b/drivers/iio/light/apds9300.c
index 05eacd1ee40f..5c15736fb93e 100644
--- a/drivers/iio/light/apds9300.c
+++ b/drivers/iio/light/apds9300.c
@@ -337,12 +337,10 @@ static int apds9300_write_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info apds9300_info_no_irq = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= apds9300_read_raw,
 };
 
 static const struct iio_info apds9300_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= apds9300_read_raw,
 	.read_event_value	= apds9300_read_thresh,
 	.write_event_value	= apds9300_write_thresh,
diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c
index 518a47e9377b..a8fa00e31c39 100644
--- a/drivers/iio/light/apds9960.c
+++ b/drivers/iio/light/apds9960.c
@@ -744,7 +744,6 @@ static int apds9960_write_event_config(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info apds9960_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &apds9960_attribute_group,
 	.read_raw = apds9960_read_raw,
 	.write_raw = apds9960_write_raw,
diff --git a/drivers/iio/light/bh1750.c b/drivers/iio/light/bh1750.c
index 6c61187e630f..a814828e69f5 100644
--- a/drivers/iio/light/bh1750.c
+++ b/drivers/iio/light/bh1750.c
@@ -217,7 +217,6 @@ static const struct attribute_group bh1750_attribute_group = {
 };
 
 static const struct iio_info bh1750_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &bh1750_attribute_group,
 	.read_raw = bh1750_read_raw,
 	.write_raw = bh1750_write_raw,
diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c
index b54dcba05a82..036f3bbe323c 100644
--- a/drivers/iio/light/bh1780.c
+++ b/drivers/iio/light/bh1780.c
@@ -128,7 +128,6 @@ static int bh1780_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info bh1780_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = bh1780_read_raw,
 	.debugfs_reg_access = bh1780_debugfs_reg_access,
 };
diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c
index d6fd0dace74f..aebf7dd071af 100644
--- a/drivers/iio/light/cm32181.c
+++ b/drivers/iio/light/cm32181.c
@@ -292,7 +292,6 @@ static const struct attribute_group cm32181_attribute_group = {
 };
 
 static const struct iio_info cm32181_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &cm32181_read_raw,
 	.write_raw		= &cm32181_write_raw,
 	.attrs			= &cm32181_attribute_group,
diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c
index 263e97235ea0..c639cf276ee6 100644
--- a/drivers/iio/light/cm3232.c
+++ b/drivers/iio/light/cm3232.c
@@ -322,7 +322,6 @@ static const struct attribute_group cm3232_attribute_group = {
 };
 
 static const struct iio_info cm3232_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &cm3232_read_raw,
 	.write_raw		= &cm3232_write_raw,
 	.attrs			= &cm3232_attribute_group,
diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
index d823c112d54b..83b08b6dc60f 100644
--- a/drivers/iio/light/cm3323.c
+++ b/drivers/iio/light/cm3323.c
@@ -211,7 +211,6 @@ static int cm3323_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info cm3323_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= cm3323_read_raw,
 	.write_raw	= cm3323_write_raw,
 	.attrs		= &cm3323_attribute_group,
diff --git a/drivers/iio/light/cm3605.c b/drivers/iio/light/cm3605.c
index 980624e9ffb5..e454bc6a33c6 100644
--- a/drivers/iio/light/cm3605.c
+++ b/drivers/iio/light/cm3605.c
@@ -126,7 +126,6 @@ static int cm3605_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info cm3605_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = cm3605_read_raw,
 };
 
diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c
index 9d66e89c57ef..1dd8ed0121b3 100644
--- a/drivers/iio/light/cm36651.c
+++ b/drivers/iio/light/cm36651.c
@@ -612,7 +612,6 @@ static const struct attribute_group cm36651_attribute_group = {
 };
 
 static const struct iio_info cm36651_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &cm36651_read_raw,
 	.write_raw		= &cm36651_write_raw,
 	.read_event_value	= &cm36651_read_prox_thresh,
diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c
index 721722376fd0..b2a46b390d5c 100644
--- a/drivers/iio/light/cros_ec_light_prox.c
+++ b/drivers/iio/light/cros_ec_light_prox.c
@@ -175,7 +175,6 @@ static int cros_ec_light_prox_write(struct iio_dev *indio_dev,
 static const struct iio_info cros_ec_light_prox_info = {
 	.read_raw = &cros_ec_light_prox_read,
 	.write_raw = &cros_ec_light_prox_write,
-	.driver_module = THIS_MODULE,
 };
 
 static int cros_ec_light_prox_probe(struct platform_device *pdev)
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 6ada9149f142..44b13fbcd093 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -1384,7 +1384,6 @@ static const struct iio_info gp2ap020a00f_info = {
 	.read_event_config = &gp2ap020a00f_read_event_config,
 	.write_event_value = &gp2ap020a00f_write_event_val,
 	.write_event_config = &gp2ap020a00f_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static int gp2ap020a00f_buffer_postenable(struct iio_dev *indio_dev)
@@ -1481,7 +1480,6 @@ static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = {
 };
 
 static const struct iio_trigger_ops gp2ap020a00f_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static int gp2ap020a00f_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index 059d964772c7..befd693a4a31 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -177,7 +177,6 @@ static int als_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info als_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &als_read_raw,
 	.write_raw = &als_write_raw,
 };
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index 73fced8a63b7..45107f7537b5 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -156,7 +156,6 @@ static int prox_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info prox_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &prox_read_raw,
 	.write_raw = &prox_write_raw,
 };
diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c
index 61f5924b472d..b45400f8fef4 100644
--- a/drivers/iio/light/isl29018.c
+++ b/drivers/iio/light/isl29018.c
@@ -624,14 +624,12 @@ static int isl29018_chip_init(struct isl29018_chip *chip)
 
 static const struct iio_info isl29018_info = {
 	.attrs = &isl29018_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = isl29018_read_raw,
 	.write_raw = isl29018_write_raw,
 };
 
 static const struct iio_info isl29023_info = {
 	.attrs = &isl29023_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = isl29018_read_raw,
 	.write_raw = isl29018_write_raw,
 };
diff --git a/drivers/iio/light/isl29028.c b/drivers/iio/light/isl29028.c
index 3d09c1fc4dad..f9912ab4f65c 100644
--- a/drivers/iio/light/isl29028.c
+++ b/drivers/iio/light/isl29028.c
@@ -536,7 +536,6 @@ static const struct iio_chan_spec isl29028_channels[] = {
 
 static const struct iio_info isl29028_info = {
 	.attrs = &isl29108_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = isl29028_read_raw,
 	.write_raw = isl29028_write_raw,
 };
diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c
index 1d2c0c8a1d4f..ed38edcd5efe 100644
--- a/drivers/iio/light/isl29125.c
+++ b/drivers/iio/light/isl29125.c
@@ -214,7 +214,6 @@ static const struct iio_info isl29125_info = {
 	.read_raw = isl29125_read_raw,
 	.write_raw = isl29125_write_raw,
 	.attrs = &isl29125_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int isl29125_buffer_preenable(struct iio_dev *indio_dev)
diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c
index e8a8931b4f50..811505d925b3 100644
--- a/drivers/iio/light/jsa1212.c
+++ b/drivers/iio/light/jsa1212.c
@@ -271,7 +271,6 @@ static const struct iio_chan_spec jsa1212_channels[] = {
 };
 
 static const struct iio_info jsa1212_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= &jsa1212_read_raw,
 };
 
diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c
index 0443fd2e8757..36208a3652e9 100644
--- a/drivers/iio/light/lm3533-als.c
+++ b/drivers/iio/light/lm3533-als.c
@@ -827,7 +827,6 @@ static int lm3533_als_disable(struct lm3533_als *als)
 static const struct iio_info lm3533_als_info = {
 	.attrs		= &lm3533_als_attribute_group,
 	.event_attrs	= &lm3533_als_event_attribute_group,
-	.driver_module	= THIS_MODULE,
 	.read_raw	= &lm3533_als_read_raw,
 };
 
diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c
index 67838edd8b37..830a2d45aa4d 100644
--- a/drivers/iio/light/ltr501.c
+++ b/drivers/iio/light/ltr501.c
@@ -1158,7 +1158,6 @@ static const struct iio_info ltr501_info_no_irq = {
 	.read_raw = ltr501_read_raw,
 	.write_raw = ltr501_write_raw,
 	.attrs = &ltr501_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ltr501_info = {
@@ -1169,14 +1168,12 @@ static const struct iio_info ltr501_info = {
 	.write_event_value	= &ltr501_write_event,
 	.read_event_config	= &ltr501_read_event_config,
 	.write_event_config	= &ltr501_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ltr301_info_no_irq = {
 	.read_raw = ltr501_read_raw,
 	.write_raw = ltr501_write_raw,
 	.attrs = &ltr301_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ltr301_info = {
@@ -1187,7 +1184,6 @@ static const struct iio_info ltr301_info = {
 	.write_event_value	= &ltr501_write_event,
 	.read_event_config	= &ltr501_read_event_config,
 	.write_event_config	= &ltr501_write_event_config,
-	.driver_module = THIS_MODULE,
 };
 
 static struct ltr501_chip_info ltr501_chip_info_tbl[] = {
diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c
index 81bd8e8da4a6..bcdb0eb9e537 100644
--- a/drivers/iio/light/max44000.c
+++ b/drivers/iio/light/max44000.c
@@ -402,7 +402,6 @@ static const struct attribute_group max44000_attribute_group = {
 };
 
 static const struct iio_info max44000_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= max44000_read_raw,
 	.write_raw		= max44000_write_raw,
 	.write_raw_get_fmt	= max44000_write_raw_get_fmt,
diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c
index b91ebc3483ce..54d88b60e303 100644
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -585,7 +585,6 @@ err:
 }
 
 static const struct iio_info opt3001_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &opt3001_attribute_group,
 	.read_raw = opt3001_read_raw,
 	.write_raw = opt3001_write_raw,
diff --git a/drivers/iio/light/pa12203001.c b/drivers/iio/light/pa12203001.c
index 76a9e12b46bc..30ea1a088dd9 100644
--- a/drivers/iio/light/pa12203001.c
+++ b/drivers/iio/light/pa12203001.c
@@ -306,7 +306,6 @@ static int pa12203001_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info pa12203001_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw = pa12203001_read_raw,
 	.write_raw = pa12203001_write_raw,
 	.attrs = &pa12203001_attr_group,
diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c
index a6efa12613a2..ffe9ce798ea2 100644
--- a/drivers/iio/light/rpr0521.c
+++ b/drivers/iio/light/rpr0521.c
@@ -538,7 +538,6 @@ static int rpr0521_pxs_drdy_set_state(struct iio_trigger *trigger,
 
 static const struct iio_trigger_ops rpr0521_trigger_ops = {
 	.set_trigger_state = rpr0521_pxs_drdy_set_state,
-	.owner = THIS_MODULE,
 	};
 
 
@@ -830,7 +829,6 @@ static int rpr0521_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info rpr0521_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= rpr0521_read_raw,
 	.write_raw	= rpr0521_write_raw,
 	.attrs		= &rpr0521_attribute_group,
diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c
index 096034c126a4..76f16f9c7616 100644
--- a/drivers/iio/light/si1145.c
+++ b/drivers/iio/light/si1145.c
@@ -989,14 +989,12 @@ static const struct attribute_group si114x_attribute_group = {
 static const struct iio_info si1132_info = {
 	.read_raw = si1145_read_raw,
 	.write_raw = si1145_write_raw,
-	.driver_module = THIS_MODULE,
 	.attrs = &si1132_attribute_group,
 };
 
 static const struct iio_info si114x_info = {
 	.read_raw = si1145_read_raw,
 	.write_raw = si1145_write_raw,
-	.driver_module = THIS_MODULE,
 	.attrs = &si114x_attribute_group,
 };
 
@@ -1237,7 +1235,6 @@ disable:
 }
 
 static const struct iio_trigger_ops si1145_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = si1145_trigger_set_state,
 };
 
diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c
index 45cf8b0a4363..6e2a169da950 100644
--- a/drivers/iio/light/stk3310.c
+++ b/drivers/iio/light/stk3310.c
@@ -409,7 +409,6 @@ static int stk3310_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info stk3310_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= stk3310_read_raw,
 	.write_raw		= stk3310_write_raw,
 	.attrs			= &stk3310_attribute_group,
diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c
index a795afb7667b..205e5659ce6b 100644
--- a/drivers/iio/light/tcs3414.c
+++ b/drivers/iio/light/tcs3414.c
@@ -241,7 +241,6 @@ static const struct iio_info tcs3414_info = {
 	.read_raw = tcs3414_read_raw,
 	.write_raw = tcs3414_write_raw,
 	.attrs = &tcs3414_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tcs3414_buffer_preenable(struct iio_dev *indio_dev)
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index 09e6ca5e332e..e7923b514d7a 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -13,7 +13,7 @@
  *
  * Datasheet: http://ams.com/eng/content/download/319364/1117183/file/TCS3472_Datasheet_EN_v2.pdf
  *
- * TODO: interrupt support, thresholds, wait time
+ * TODO: wait time
  */
 
 #include <linux/module.h>
@@ -23,6 +23,7 @@
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+#include <linux/iio/events.h>
 #include <linux/iio/trigger_consumer.h>
 #include <linux/iio/buffer.h>
 #include <linux/iio/triggered_buffer.h>
@@ -31,12 +32,15 @@
 
 #define TCS3472_COMMAND BIT(7)
 #define TCS3472_AUTO_INCR BIT(5)
+#define TCS3472_SPECIAL_FUNC (BIT(5) | BIT(6))
+
+#define TCS3472_INTR_CLEAR (TCS3472_COMMAND | TCS3472_SPECIAL_FUNC | 0x06)
 
 #define TCS3472_ENABLE (TCS3472_COMMAND | 0x00)
 #define TCS3472_ATIME (TCS3472_COMMAND | 0x01)
 #define TCS3472_WTIME (TCS3472_COMMAND | 0x03)
-#define TCS3472_AILT (TCS3472_COMMAND | 0x04)
-#define TCS3472_AIHT (TCS3472_COMMAND | 0x06)
+#define TCS3472_AILT (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x04)
+#define TCS3472_AIHT (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x06)
 #define TCS3472_PERS (TCS3472_COMMAND | 0x0c)
 #define TCS3472_CONFIG (TCS3472_COMMAND | 0x0d)
 #define TCS3472_CONTROL (TCS3472_COMMAND | 0x0f)
@@ -47,19 +51,42 @@
 #define TCS3472_GDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x18)
 #define TCS3472_BDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x1a)
 
+#define TCS3472_STATUS_AINT BIT(4)
 #define TCS3472_STATUS_AVALID BIT(0)
+#define TCS3472_ENABLE_AIEN BIT(4)
 #define TCS3472_ENABLE_AEN BIT(1)
 #define TCS3472_ENABLE_PON BIT(0)
 #define TCS3472_CONTROL_AGAIN_MASK (BIT(0) | BIT(1))
 
 struct tcs3472_data {
 	struct i2c_client *client;
+	struct mutex lock;
+	u16 low_thresh;
+	u16 high_thresh;
 	u8 enable;
 	u8 control;
 	u8 atime;
+	u8 apers;
 	u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */
 };
 
+static const struct iio_event_spec tcs3472_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_EITHER,
+		.mask_separate = BIT(IIO_EV_INFO_ENABLE) |
+				 BIT(IIO_EV_INFO_PERIOD),
+	},
+};
+
 #define TCS3472_CHANNEL(_color, _si, _addr) { \
 	.type = IIO_INTENSITY, \
 	.modified = 1, \
@@ -75,6 +102,8 @@ struct tcs3472_data {
 		.storagebits = 16, \
 		.endianness = IIO_CPU, \
 	}, \
+	.event_spec = _si ? NULL : tcs3472_events, \
+	.num_event_specs = _si ? 0 : ARRAY_SIZE(tcs3472_events), \
 }
 
 static const int tcs3472_agains[] = { 1, 4, 16, 60 };
@@ -182,6 +211,166 @@ static int tcs3472_write_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
+/*
+ * Translation from APERS field value to the number of consecutive out-of-range
+ * clear channel values before an interrupt is generated
+ */
+static const int tcs3472_intr_pers[] = {
+	0, 1, 2, 3, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60
+};
+
+static int tcs3472_read_event(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int *val,
+	int *val2)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+	unsigned int period;
+
+	mutex_lock(&data->lock);
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		*val = (dir == IIO_EV_DIR_RISING) ?
+			data->high_thresh : data->low_thresh;
+		ret = IIO_VAL_INT;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		period = (256 - data->atime) * 2400 *
+			tcs3472_intr_pers[data->apers];
+		*val = period / USEC_PER_SEC;
+		*val2 = period % USEC_PER_SEC;
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static int tcs3472_write_event(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int val,
+	int val2)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+	u8 command;
+	int period;
+	int i;
+
+	mutex_lock(&data->lock);
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			command = TCS3472_AIHT;
+			break;
+		case IIO_EV_DIR_FALLING:
+			command = TCS3472_AILT;
+			break;
+		default:
+			ret = -EINVAL;
+			goto error;
+		}
+		ret = i2c_smbus_write_word_data(data->client, command, val);
+		if (ret)
+			goto error;
+
+		if (dir == IIO_EV_DIR_RISING)
+			data->high_thresh = val;
+		else
+			data->low_thresh = val;
+		break;
+	case IIO_EV_INFO_PERIOD:
+		period = val * USEC_PER_SEC + val2;
+		for (i = 1; i < ARRAY_SIZE(tcs3472_intr_pers) - 1; i++) {
+			if (period <= (256 - data->atime) * 2400 *
+					tcs3472_intr_pers[i])
+				break;
+		}
+		ret = i2c_smbus_write_byte_data(data->client, TCS3472_PERS, i);
+		if (ret)
+			goto error;
+
+		data->apers = i;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+error:
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static int tcs3472_read_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = !!(data->enable & TCS3472_ENABLE_AIEN);
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static int tcs3472_write_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret = 0;
+	u8 enable_old;
+
+	mutex_lock(&data->lock);
+
+	enable_old = data->enable;
+
+	if (state)
+		data->enable |= TCS3472_ENABLE_AIEN;
+	else
+		data->enable &= ~TCS3472_ENABLE_AIEN;
+
+	if (enable_old != data->enable) {
+		ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+						data->enable);
+		if (ret)
+			data->enable = enable_old;
+	}
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static irqreturn_t tcs3472_event_handler(int irq, void *priv)
+{
+	struct iio_dev *indio_dev = priv;
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, TCS3472_STATUS);
+	if (ret >= 0 && (ret & TCS3472_STATUS_AINT)) {
+		iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0,
+						IIO_EV_TYPE_THRESH,
+						IIO_EV_DIR_EITHER),
+				iio_get_time_ns(indio_dev));
+
+		i2c_smbus_read_byte_data(data->client, TCS3472_INTR_CLEAR);
+	}
+
+	return IRQ_HANDLED;
+}
+
 static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
@@ -245,8 +434,11 @@ static const struct attribute_group tcs3472_attribute_group = {
 static const struct iio_info tcs3472_info = {
 	.read_raw = tcs3472_read_raw,
 	.write_raw = tcs3472_write_raw,
+	.read_event_value = tcs3472_read_event,
+	.write_event_value = tcs3472_write_event,
+	.read_event_config = tcs3472_read_event_config,
+	.write_event_config = tcs3472_write_event_config,
 	.attrs = &tcs3472_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tcs3472_probe(struct i2c_client *client,
@@ -263,6 +455,7 @@ static int tcs3472_probe(struct i2c_client *client,
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
+	mutex_init(&data->lock);
 
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->info = &tcs3472_info;
@@ -292,12 +485,29 @@ static int tcs3472_probe(struct i2c_client *client,
 		return ret;
 	data->atime = ret;
 
+	ret = i2c_smbus_read_word_data(data->client, TCS3472_AILT);
+	if (ret < 0)
+		return ret;
+	data->low_thresh = ret;
+
+	ret = i2c_smbus_read_word_data(data->client, TCS3472_AIHT);
+	if (ret < 0)
+		return ret;
+	data->high_thresh = ret;
+
+	data->apers = 1;
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_PERS,
+					data->apers);
+	if (ret < 0)
+		return ret;
+
 	ret = i2c_smbus_read_byte_data(data->client, TCS3472_ENABLE);
 	if (ret < 0)
 		return ret;
 
 	/* enable device */
 	data->enable = ret | TCS3472_ENABLE_PON | TCS3472_ENABLE_AEN;
+	data->enable &= ~TCS3472_ENABLE_AIEN;
 	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
 		data->enable);
 	if (ret < 0)
@@ -308,12 +518,24 @@ static int tcs3472_probe(struct i2c_client *client,
 	if (ret < 0)
 		return ret;
 
+	if (client->irq) {
+		ret = request_threaded_irq(client->irq, NULL,
+					   tcs3472_event_handler,
+					   IRQF_TRIGGER_FALLING | IRQF_SHARED |
+					   IRQF_ONESHOT,
+					   client->name, indio_dev);
+		if (ret)
+			goto buffer_cleanup;
+	}
+
 	ret = iio_device_register(indio_dev);
 	if (ret < 0)
-		goto buffer_cleanup;
+		goto free_irq;
 
 	return 0;
 
+free_irq:
+	free_irq(client->irq, indio_dev);
 buffer_cleanup:
 	iio_triggered_buffer_cleanup(indio_dev);
 	return ret;
@@ -321,8 +543,19 @@ buffer_cleanup:
 
 static int tcs3472_powerdown(struct tcs3472_data *data)
 {
-	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
-		data->enable & ~(TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
+	int ret;
+	u8 enable_mask = TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON;
+
+	mutex_lock(&data->lock);
+
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable & ~enable_mask);
+	if (!ret)
+		data->enable &= ~enable_mask;
+
+	mutex_unlock(&data->lock);
+
+	return ret;
 }
 
 static int tcs3472_remove(struct i2c_client *client)
@@ -330,6 +563,7 @@ static int tcs3472_remove(struct i2c_client *client)
 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
 
 	iio_device_unregister(indio_dev);
+	free_irq(client->irq, indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 	tcs3472_powerdown(iio_priv(indio_dev));
 
@@ -348,8 +582,19 @@ static int tcs3472_resume(struct device *dev)
 {
 	struct tcs3472_data *data = iio_priv(i2c_get_clientdata(
 		to_i2c_client(dev)));
-	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
-		data->enable | (TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
+	int ret;
+	u8 enable_mask = TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON;
+
+	mutex_lock(&data->lock);
+
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable | enable_mask);
+	if (!ret)
+		data->enable |= enable_mask;
+
+	mutex_unlock(&data->lock);
+
+	return ret;
 }
 #endif
 
diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index 7599693f7fe9..6bbb0b1e6032 100644
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -697,13 +697,11 @@ static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info tsl2563_info_no_irq = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &tsl2563_read_raw,
 	.write_raw = &tsl2563_write_raw,
 };
 
 static const struct iio_info tsl2563_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &tsl2563_read_raw,
 	.write_raw = &tsl2563_write_raw,
 	.read_event_value = &tsl2563_read_thresh,
diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c
index fb711ed4862e..f2e50edaa242 100644
--- a/drivers/iio/light/tsl2583.c
+++ b/drivers/iio/light/tsl2583.c
@@ -804,7 +804,6 @@ static int tsl2583_write_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info tsl2583_info = {
 	.attrs = &tsl2583_attribute_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = tsl2583_read_raw,
 	.write_raw = tsl2583_write_raw,
 };
diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c
index cf94ec72b181..06171cb76e23 100644
--- a/drivers/iio/light/tsl4531.c
+++ b/drivers/iio/light/tsl4531.c
@@ -144,7 +144,6 @@ static const struct iio_info tsl4531_info = {
 	.read_raw = tsl4531_read_raw,
 	.write_raw = tsl4531_write_raw,
 	.attrs = &tsl4531_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tsl4531_check_id(struct i2c_client *client)
diff --git a/drivers/iio/light/us5182d.c b/drivers/iio/light/us5182d.c
index d571ad7291ed..68e52943879a 100644
--- a/drivers/iio/light/us5182d.c
+++ b/drivers/iio/light/us5182d.c
@@ -714,7 +714,6 @@ err:
 }
 
 static const struct iio_info us5182d_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw = us5182d_read_raw,
 	.write_raw = us5182d_write_raw,
 	.attrs = &us5182d_attr_group,
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 360b6e98137a..c599a90506ad 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -155,7 +155,6 @@ static int vcnl4000_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info vcnl4000_info = {
 	.read_raw = vcnl4000_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int vcnl4000_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/veml6070.c b/drivers/iio/light/veml6070.c
index bc1c4cb782cd..f4bf3c5b5eda 100644
--- a/drivers/iio/light/veml6070.c
+++ b/drivers/iio/light/veml6070.c
@@ -136,7 +136,6 @@ static int veml6070_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info veml6070_info = {
 	.read_raw = veml6070_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int veml6070_probe(struct i2c_client *client,
diff --git a/drivers/iio/light/vl6180.c b/drivers/iio/light/vl6180.c
index 6e25b724d941..192c77ef3608 100644
--- a/drivers/iio/light/vl6180.c
+++ b/drivers/iio/light/vl6180.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/of.h>
 #include <linux/delay.h>
+#include <linux/util_macros.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
@@ -86,6 +87,8 @@
 struct vl6180_data {
 	struct i2c_client *client;
 	struct mutex lock;
+	unsigned int als_gain_milli;
+	unsigned int als_it_ms;
 };
 
 enum { VL6180_ALS, VL6180_RANGE, VL6180_PROX };
@@ -275,19 +278,17 @@ static const struct iio_chan_spec vl6180_channels[] = {
 };
 
 /*
- * Columns 3 & 4 represent the same value in decimal and hex notations.
- * Kept in order to avoid the datatype conversion while reading the
- * hardware_gain.
+ * Available Ambient Light Sensor gain settings, 1/1000th, and
+ * corresponding setting for the VL6180_ALS_GAIN register
  */
-static const int vl6180_als_gain[8][4] = {
-	{ 1,	0,	70,	VL6180_ALS_GAIN_1 },
-	{ 1,    250000, 69,	VL6180_ALS_GAIN_1_25 },
-	{ 1,    670000, 68,	VL6180_ALS_GAIN_1_67 },
-	{ 2,    500000, 67,	VL6180_ALS_GAIN_2_5 },
-	{ 5,    0,      66,	VL6180_ALS_GAIN_5 },
-	{ 10,   0,      65,	VL6180_ALS_GAIN_10 },
-	{ 20,   0,      64,	VL6180_ALS_GAIN_20 },
-	{ 40,   0,      71,	VL6180_ALS_GAIN_40 }
+static const int vl6180_als_gain_tab[8] = {
+	1000, 1250, 1670, 2500, 5000, 10000, 20000, 40000
+};
+static const u8 vl6180_als_gain_tab_bits[8] = {
+	VL6180_ALS_GAIN_1,    VL6180_ALS_GAIN_1_25,
+	VL6180_ALS_GAIN_1_67, VL6180_ALS_GAIN_2_5,
+	VL6180_ALS_GAIN_5,    VL6180_ALS_GAIN_10,
+	VL6180_ALS_GAIN_20,   VL6180_ALS_GAIN_40
 };
 
 static int vl6180_read_raw(struct iio_dev *indio_dev,
@@ -295,7 +296,7 @@ static int vl6180_read_raw(struct iio_dev *indio_dev,
 				int *val, int *val2, long mask)
 {
 	struct vl6180_data *data = iio_priv(indio_dev);
-	int ret, i;
+	int ret;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
@@ -306,19 +307,20 @@ static int vl6180_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_INT_TIME:
-		ret = vl6180_read_word(data->client, VL6180_ALS_IT);
-		if (ret < 0)
-			return ret;
-		*val = 0; /* 1 count = 1ms (0 = 1ms) */
-		*val2 = (ret + 1) * 1000; /* convert to seconds */
+		*val = data->als_it_ms;
+		*val2 = 1000;
+
+		return IIO_VAL_FRACTIONAL;
 
-		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_LIGHT:
-			*val = 0; /* one ALS count is 0.32 Lux */
-			*val2 = 320000;
-			break;
+			/* one ALS count is 0.32 Lux @ gain 1, IT 100 ms */
+			*val = 32000; /* 0.32 * 1000 * 100 */
+			*val2 = data->als_gain_milli * data->als_it_ms;
+
+			return IIO_VAL_FRACTIONAL;
+
 		case IIO_DISTANCE:
 			*val = 0; /* sensor reports mm, scale to meter */
 			*val2 = 1000;
@@ -329,17 +331,11 @@ static int vl6180_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT_PLUS_MICRO;
 	case IIO_CHAN_INFO_HARDWAREGAIN:
-		ret = vl6180_read_byte(data->client, VL6180_ALS_GAIN);
-		if (ret < 0)
-			return -EINVAL;
-		for (i = 0; i < ARRAY_SIZE(vl6180_als_gain); i++) {
-			if (ret == vl6180_als_gain[i][2]) {
-				*val = vl6180_als_gain[i][0];
-				*val2 = vl6180_als_gain[i][1];
-			}
-		}
+		*val = data->als_gain_milli;
+		*val2 = 1000;
+
+		return IIO_VAL_FRACTIONAL;
 
-		return IIO_VAL_INT_PLUS_MICRO;
 	default:
 		return -EINVAL;
 	}
@@ -365,37 +361,53 @@ static int vl6180_hold(struct vl6180_data *data, bool hold)
 
 static int vl6180_set_als_gain(struct vl6180_data *data, int val, int val2)
 {
-	int i, ret;
-
-	for (i = 0; i < ARRAY_SIZE(vl6180_als_gain); i++) {
-		if (val == vl6180_als_gain[i][0] &&
-			val2 == vl6180_als_gain[i][1]) {
-			mutex_lock(&data->lock);
-			ret = vl6180_hold(data, true);
-			if (ret < 0)
-				goto fail;
-			ret = vl6180_write_byte(data->client, VL6180_ALS_GAIN,
-				vl6180_als_gain[i][3]);
-fail:
-			vl6180_hold(data, false);
-			mutex_unlock(&data->lock);
-			return ret;
-		}
-	}
+	int i, ret, gain;
 
-	return -EINVAL;
+	if (val < 1 || val > 40)
+		return -EINVAL;
+
+	gain = (val * 1000000 + val2) / 1000;
+	if (gain < 1 || gain > 40000)
+		return -EINVAL;
+
+	i = find_closest(gain, vl6180_als_gain_tab,
+			 ARRAY_SIZE(vl6180_als_gain_tab));
+
+	mutex_lock(&data->lock);
+	ret = vl6180_hold(data, true);
+	if (ret < 0)
+		goto fail;
+
+	ret = vl6180_write_byte(data->client, VL6180_ALS_GAIN,
+				vl6180_als_gain_tab_bits[i]);
+
+	if (ret >= 0)
+		data->als_gain_milli = vl6180_als_gain_tab[i];
+
+fail:
+	vl6180_hold(data, false);
+	mutex_unlock(&data->lock);
+	return ret;
 }
 
-static int vl6180_set_it(struct vl6180_data *data, int val2)
+static int vl6180_set_it(struct vl6180_data *data, int val, int val2)
 {
-	int ret;
+	int ret, it_ms;
+
+	it_ms = (val2 + 500) / 1000; /* round to ms */
+	if (val != 0 || it_ms < 1 || it_ms > 512)
+		return -EINVAL;
 
 	mutex_lock(&data->lock);
 	ret = vl6180_hold(data, true);
 	if (ret < 0)
 		goto fail;
-	ret = vl6180_write_word(data->client, VL6180_ALS_IT,
-		(val2 - 500) / 1000); /* write value in ms */
+
+	ret = vl6180_write_word(data->client, VL6180_ALS_IT, it_ms - 1);
+
+	if (ret >= 0)
+		data->als_it_ms = it_ms;
+
 fail:
 	vl6180_hold(data, false);
 	mutex_unlock(&data->lock);
@@ -411,10 +423,8 @@ static int vl6180_write_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_INT_TIME:
-		if (val != 0 || val2 < 500 || val2 >= 512500)
-			return -EINVAL;
+		return vl6180_set_it(data, val, val2);
 
-		return vl6180_set_it(data, val2);
 	case IIO_CHAN_INFO_HARDWAREGAIN:
 		if (chan->type != IIO_LIGHT)
 			return -EINVAL;
@@ -429,7 +439,6 @@ static const struct iio_info vl6180_info = {
 	.read_raw = vl6180_read_raw,
 	.write_raw = vl6180_write_raw,
 	.attrs = &vl6180_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int vl6180_init(struct vl6180_data *data)
@@ -468,11 +477,13 @@ static int vl6180_init(struct vl6180_data *data)
 		return ret;
 
 	/* ALS integration time: 100ms */
+	data->als_it_ms = 100;
 	ret = vl6180_write_word(client, VL6180_ALS_IT, VL6180_ALS_IT_100);
 	if (ret < 0)
 		return ret;
 
 	/* ALS gain: 1 */
+	data->als_gain_milli = 1000;
 	ret = vl6180_write_byte(client, VL6180_ALS_GAIN, VL6180_ALS_GAIN_1);
 	if (ret < 0)
 		return ret;
diff --git a/drivers/iio/magnetometer/Makefile b/drivers/iio/magnetometer/Makefile
index b86d6cb7f285..664b2f866472 100644
--- a/drivers/iio/magnetometer/Makefile
+++ b/drivers/iio/magnetometer/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O Magnetometer sensor drivers
 #
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index 0bff76e96950..93be1f4c0f27 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/drivers/iio/magnetometer/ak8974.c
@@ -658,7 +658,6 @@ static const unsigned long ak8974_scan_masks[] = { 0x7, 0 };
 
 static const struct iio_info ak8974_info = {
 	.read_raw = &ak8974_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static bool ak8974_writeable_reg(struct device *dev, unsigned int reg)
diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 4ff883942f7b..c09329069d0a 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -781,7 +781,6 @@ static const unsigned long ak8975_scan_masks[] = { 0x7, 0 };
 
 static const struct iio_info ak8975_info = {
 	.read_raw = &ak8975_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #ifdef CONFIG_ACPI
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c
index d104fb8d9379..d91cb845e3d6 100644
--- a/drivers/iio/magnetometer/bmc150_magn.c
+++ b/drivers/iio/magnetometer/bmc150_magn.c
@@ -651,7 +651,6 @@ static const struct iio_info bmc150_magn_info = {
 	.attrs = &bmc150_magn_attrs_group,
 	.read_raw = bmc150_magn_read_raw,
 	.write_raw = bmc150_magn_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const unsigned long bmc150_magn_scan_masks[] = {
@@ -811,7 +810,6 @@ err_unlock:
 static const struct iio_trigger_ops bmc150_magn_trigger_ops = {
 	.set_trigger_state = bmc150_magn_data_rdy_trigger_set_state,
 	.try_reenable = bmc150_magn_trig_try_reen,
-	.owner = THIS_MODULE,
 };
 
 static int bmc150_magn_buffer_preenable(struct iio_dev *indio_dev)
diff --git a/drivers/iio/magnetometer/bmc150_magn.h b/drivers/iio/magnetometer/bmc150_magn.h
index 9a8e26812ca8..3b69232afd2c 100644
--- a/drivers/iio/magnetometer/bmc150_magn.h
+++ b/drivers/iio/magnetometer/bmc150_magn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BMC150_MAGN_H_
 #define _BMC150_MAGN_H_
 
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index 0e791b02ed4a..a1fd9d591818 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -282,7 +282,6 @@ static int magn_3d_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info magn_3d_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &magn_3d_read_raw,
 	.write_raw = &magn_3d_write_raw,
 };
diff --git a/drivers/iio/magnetometer/hmc5843_core.c b/drivers/iio/magnetometer/hmc5843_core.c
index ba3e2a374ee5..ada142fb7aa3 100644
--- a/drivers/iio/magnetometer/hmc5843_core.c
+++ b/drivers/iio/magnetometer/hmc5843_core.c
@@ -597,7 +597,6 @@ static const struct iio_info hmc5843_info = {
 	.read_raw = &hmc5843_read_raw,
 	.write_raw = &hmc5843_write_raw,
 	.write_raw_get_fmt = &hmc5843_write_raw_get_fmt,
-	.driver_module = THIS_MODULE,
 };
 
 static const unsigned long hmc5843_scan_masks[] = {0x7, 0};
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index dad8d57f7402..b34ace76d31b 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -333,7 +333,6 @@ static const struct iio_info mag3110_info = {
 	.attrs = &mag3110_group,
 	.read_raw = &mag3110_read_raw,
 	.write_raw = &mag3110_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const unsigned long mag3110_scan_masks[] = {0x7, 0xf, 0};
diff --git a/drivers/iio/magnetometer/mmc35240.c b/drivers/iio/magnetometer/mmc35240.c
index 176e14a61558..6b640c6338c9 100644
--- a/drivers/iio/magnetometer/mmc35240.c
+++ b/drivers/iio/magnetometer/mmc35240.c
@@ -418,7 +418,6 @@ static int mmc35240_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info mmc35240_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= mmc35240_read_raw,
 	.write_raw	= mmc35240_write_raw,
 	.attrs		= &mmc35240_attribute_group,
diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index e68368b5b2a3..72f6d1335a04 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -315,6 +315,17 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
 				},
 			},
 		},
+		.drdy_irq = {
+			/* drdy line is routed drdy pin */
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x07,
+			},
+		},
+		.sim = {
+			.addr = 0x22,
+			.value = BIT(2),
+		},
 		.multi_read_bit = true,
 		.bootime = 2,
 	},
@@ -355,9 +366,14 @@ static const struct st_sensor_settings st_magn_sensors_settings[] = {
 			.mask = 0x10,
 		},
 		.drdy_irq = {
-			.addr = 0x62,
-			.mask_int1 = 0x01,
-			.addr_stat_drdy = 0x67,
+			.int1 = {
+				.addr = 0x62,
+				.mask = 0x01,
+			},
+			.stat_drdy = {
+				.addr = 0x67,
+				.mask = 0x07,
+			},
 		},
 		.multi_read_bit = false,
 		.bootime = 2,
@@ -434,7 +450,6 @@ static const struct attribute_group st_magn_attribute_group = {
 };
 
 static const struct iio_info magn_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &st_magn_attribute_group,
 	.read_raw = &st_magn_read_raw,
 	.write_raw = &st_magn_write_raw,
@@ -443,7 +458,6 @@ static const struct iio_info magn_info = {
 
 #ifdef CONFIG_IIO_TRIGGER
 static const struct iio_trigger_ops st_magn_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = ST_MAGN_TRIGGER_SET_STATE,
 	.validate_device = st_sensors_validate_device,
 };
diff --git a/drivers/iio/multiplexer/iio-mux.c b/drivers/iio/multiplexer/iio-mux.c
index 37ba007f8dca..60621ccd67e4 100644
--- a/drivers/iio/multiplexer/iio-mux.c
+++ b/drivers/iio/multiplexer/iio-mux.c
@@ -173,7 +173,6 @@ static const struct iio_info mux_info = {
 	.read_raw = mux_read_raw,
 	.read_avail = mux_read_avail,
 	.write_raw = mux_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static ssize_t mux_read_ext_info(struct iio_dev *indio_dev, uintptr_t private,
@@ -285,6 +284,9 @@ static int mux_configure_channel(struct device *dev, struct mux *mux,
 	child->ext_info_cache = devm_kzalloc(dev,
 					     sizeof(*child->ext_info_cache) *
 					     num_ext_info, GFP_KERNEL);
+	if (!child->ext_info_cache)
+		return -ENOMEM;
+
 	for (i = 0; i < num_ext_info; ++i) {
 		child->ext_info_cache[i].size = -1;
 
@@ -309,6 +311,9 @@ static int mux_configure_channel(struct device *dev, struct mux *mux,
 
 		child->ext_info_cache[i].data = devm_kmemdup(dev, page, ret + 1,
 							     GFP_KERNEL);
+		if (!child->ext_info_cache[i].data)
+			return -ENOMEM;
+
 		child->ext_info_cache[i].data[ret] = 0;
 		child->ext_info_cache[i].size = ret;
 	}
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index fd1b3696ee42..1e5451d1ff88 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -186,7 +186,6 @@ static int incl_3d_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info incl_3d_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &incl_3d_read_raw,
 	.write_raw = &incl_3d_write_raw,
 };
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c
index 98fe0c5df380..a69db2002414 100644
--- a/drivers/iio/orientation/hid-sensor-rotation.c
+++ b/drivers/iio/orientation/hid-sensor-rotation.c
@@ -138,7 +138,6 @@ static int dev_rot_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info dev_rot_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw_multi = &dev_rot_read_raw,
 	.write_raw = &dev_rot_write_raw,
 };
diff --git a/drivers/iio/potentiometer/Makefile b/drivers/iio/potentiometer/Makefile
index 2260d40e0936..1afd1e70f8cc 100644
--- a/drivers/iio/potentiometer/Makefile
+++ b/drivers/iio/potentiometer/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O potentiometer drivers
 #
diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c
index fb9e2a337dc2..9b0ff4ab2f9c 100644
--- a/drivers/iio/potentiometer/ds1803.c
+++ b/drivers/iio/potentiometer/ds1803.c
@@ -110,7 +110,6 @@ static int ds1803_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info ds1803_info = {
 	.read_raw = ds1803_read_raw,
 	.write_raw = ds1803_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ds1803_probe(struct i2c_client *client,
diff --git a/drivers/iio/potentiometer/max5481.c b/drivers/iio/potentiometer/max5481.c
index 926554991244..ffe2761333a2 100644
--- a/drivers/iio/potentiometer/max5481.c
+++ b/drivers/iio/potentiometer/max5481.c
@@ -119,7 +119,6 @@ static int max5481_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info max5481_info = {
 	.read_raw = max5481_read_raw,
 	.write_raw = max5481_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #if defined(CONFIG_OF)
@@ -207,7 +206,6 @@ MODULE_DEVICE_TABLE(acpi, max5481_acpi_match);
 static struct spi_driver max5481_driver = {
 	.driver = {
 		.name  = "max5481",
-		.owner = THIS_MODULE,
 		.of_match_table = of_match_ptr(max5481_match),
 		.acpi_match_table = ACPI_PTR(max5481_acpi_match),
 	},
diff --git a/drivers/iio/potentiometer/max5487.c b/drivers/iio/potentiometer/max5487.c
index 6c50939a2e83..5042d3e09b12 100644
--- a/drivers/iio/potentiometer/max5487.c
+++ b/drivers/iio/potentiometer/max5487.c
@@ -83,7 +83,6 @@ static int max5487_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info max5487_info = {
 	.read_raw = max5487_read_raw,
 	.write_raw = max5487_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int max5487_spi_probe(struct spi_device *spi)
@@ -147,7 +146,6 @@ MODULE_DEVICE_TABLE(acpi, max5487_acpi_match);
 static struct spi_driver max5487_driver = {
 	.driver = {
 		.name = "max5487",
-		.owner = THIS_MODULE,
 		.acpi_match_table = ACPI_PTR(max5487_acpi_match),
 	},
 	.id_table = max5487_id,
diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c
index 4e7e2c6c522c..b3e30db246cc 100644
--- a/drivers/iio/potentiometer/mcp4131.c
+++ b/drivers/iio/potentiometer/mcp4131.c
@@ -237,7 +237,6 @@ static int mcp4131_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info mcp4131_info = {
 	.read_raw = mcp4131_read_raw,
 	.write_raw = mcp4131_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int mcp4131_probe(struct spi_device *spi)
diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c
index 314353d7ab59..114ab876fcc6 100644
--- a/drivers/iio/potentiometer/mcp4531.c
+++ b/drivers/iio/potentiometer/mcp4531.c
@@ -207,7 +207,6 @@ static const struct iio_info mcp4531_info = {
 	.read_raw = mcp4531_read_raw,
 	.read_avail = mcp4531_read_avail,
 	.write_raw = mcp4531_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 #ifdef CONFIG_OF
diff --git a/drivers/iio/potentiometer/tpl0102.c b/drivers/iio/potentiometer/tpl0102.c
index 7b6b54531ea2..93f9d4a8c9aa 100644
--- a/drivers/iio/potentiometer/tpl0102.c
+++ b/drivers/iio/potentiometer/tpl0102.c
@@ -106,7 +106,6 @@ static int tpl0102_write_raw(struct iio_dev *indio_dev,
 static const struct iio_info tpl0102_info = {
 	.read_raw = tpl0102_read_raw,
 	.write_raw = tpl0102_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int tpl0102_probe(struct i2c_client *client,
diff --git a/drivers/iio/potentiostat/lmp91000.c b/drivers/iio/potentiostat/lmp91000.c
index afa8de3418d0..007710991f15 100644
--- a/drivers/iio/potentiostat/lmp91000.c
+++ b/drivers/iio/potentiostat/lmp91000.c
@@ -207,7 +207,6 @@ static int lmp91000_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info lmp91000_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = lmp91000_read_raw,
 };
 
@@ -283,7 +282,6 @@ static int lmp91000_buffer_cb(const void *val, void *private)
 }
 
 static const struct iio_trigger_ops lmp91000_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 
diff --git a/drivers/iio/pressure/Makefile b/drivers/iio/pressure/Makefile
index 838642789389..c2058d7b2f93 100644
--- a/drivers/iio/pressure/Makefile
+++ b/drivers/iio/pressure/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O pressure drivers
 #
diff --git a/drivers/iio/pressure/abp060mg.c b/drivers/iio/pressure/abp060mg.c
index 43bdd0b9155f..46a220c70d6a 100644
--- a/drivers/iio/pressure/abp060mg.c
+++ b/drivers/iio/pressure/abp060mg.c
@@ -168,7 +168,6 @@ static int abp060mg_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info abp060mg_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = abp060mg_read_raw,
 };
 
diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 0d2ea3ee371b..fd1da26a62e4 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -561,7 +561,6 @@ static const struct attribute_group bmp280_attrs_group = {
 };
 
 static const struct iio_info bmp280_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &bmp280_read_raw,
 	.write_raw = &bmp280_write_raw,
 	.attrs = &bmp280_attrs_group,
@@ -573,7 +572,7 @@ static int bmp280_chip_config(struct bmp280_data *data)
 	u8 osrs = BMP280_OSRS_TEMP_X(data->oversampling_temp + 1) |
 		  BMP280_OSRS_PRESS_X(data->oversampling_press + 1);
 
-	ret = regmap_update_bits(data->regmap, BMP280_REG_CTRL_MEAS,
+	ret = regmap_write_bits(data->regmap, BMP280_REG_CTRL_MEAS,
 				 BMP280_OSRS_TEMP_MASK |
 				 BMP280_OSRS_PRESS_MASK |
 				 BMP280_MODE_MASK,
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c
index 6807113ec09f..08c00ac32bda 100644
--- a/drivers/iio/pressure/bmp280-regmap.c
+++ b/drivers/iio/pressure/bmp280-regmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h
index 61347438b779..eda50ef65706 100644
--- a/drivers/iio/pressure/bmp280.h
+++ b/drivers/iio/pressure/bmp280.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/bitops.h>
 #include <linux/device.h>
 #include <linux/regmap.h>
diff --git a/drivers/iio/pressure/cros_ec_baro.c b/drivers/iio/pressure/cros_ec_baro.c
index 48b2a30f57ae..4599fde4dd25 100644
--- a/drivers/iio/pressure/cros_ec_baro.c
+++ b/drivers/iio/pressure/cros_ec_baro.c
@@ -120,14 +120,12 @@ static int cros_ec_baro_write(struct iio_dev *indio_dev,
 static const struct iio_info cros_ec_baro_info = {
 	.read_raw = &cros_ec_baro_read,
 	.write_raw = &cros_ec_baro_write,
-	.driver_module = THIS_MODULE,
 };
 
 static int cros_ec_baro_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct cros_ec_dev *ec_dev = dev_get_drvdata(dev->parent);
-	struct cros_ec_device *ec_device;
 	struct iio_dev *indio_dev;
 	struct cros_ec_baro_state *state;
 	struct iio_chan_spec *channel;
@@ -137,7 +135,6 @@ static int cros_ec_baro_probe(struct platform_device *pdev)
 		dev_warn(dev, "No CROS EC device found.\n");
 		return -EINVAL;
 	}
-	ec_device = ec_dev->ec_dev;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*state));
 	if (!indio_dev)
diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
index 6848d8c80eff..4c437918f1d2 100644
--- a/drivers/iio/pressure/hid-sensor-press.c
+++ b/drivers/iio/pressure/hid-sensor-press.c
@@ -160,7 +160,6 @@ static int press_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info press_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &press_read_raw,
 	.write_raw = &press_write_raw,
 };
diff --git a/drivers/iio/pressure/hp03.c b/drivers/iio/pressure/hp03.c
index 8c7b3ec3d84a..406934ea6228 100644
--- a/drivers/iio/pressure/hp03.c
+++ b/drivers/iio/pressure/hp03.c
@@ -208,7 +208,6 @@ static int hp03_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info hp03_info = {
-	.driver_module	= THIS_MODULE,
 	.read_raw	= &hp03_read_raw,
 };
 
diff --git a/drivers/iio/pressure/hp206c.c b/drivers/iio/pressure/hp206c.c
index 12f769e86355..c38c19678cf6 100644
--- a/drivers/iio/pressure/hp206c.c
+++ b/drivers/iio/pressure/hp206c.c
@@ -351,7 +351,6 @@ static const struct iio_info hp206c_info = {
 	.attrs = &hp206c_attribute_group,
 	.read_raw = hp206c_read_raw,
 	.write_raw = hp206c_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int hp206c_probe(struct i2c_client *client,
diff --git a/drivers/iio/pressure/mpl115.c b/drivers/iio/pressure/mpl115.c
index 8f2bce213248..ab4786d0102b 100644
--- a/drivers/iio/pressure/mpl115.c
+++ b/drivers/iio/pressure/mpl115.c
@@ -144,7 +144,6 @@ static const struct iio_chan_spec mpl115_channels[] = {
 
 static const struct iio_info mpl115_info = {
 	.read_raw = &mpl115_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 int mpl115_probe(struct device *dev, const char *name,
diff --git a/drivers/iio/pressure/mpl3115.c b/drivers/iio/pressure/mpl3115.c
index 619b963714c7..7537547fb7ee 100644
--- a/drivers/iio/pressure/mpl3115.c
+++ b/drivers/iio/pressure/mpl3115.c
@@ -218,7 +218,6 @@ static const struct iio_chan_spec mpl3115_channels[] = {
 
 static const struct iio_info mpl3115_info = {
 	.read_raw = &mpl3115_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int mpl3115_probe(struct i2c_client *client,
diff --git a/drivers/iio/pressure/ms5611_core.c b/drivers/iio/pressure/ms5611_core.c
index 2a77a2f15752..f950cfde5db9 100644
--- a/drivers/iio/pressure/ms5611_core.c
+++ b/drivers/iio/pressure/ms5611_core.c
@@ -384,7 +384,6 @@ static const struct iio_info ms5611_info = {
 	.read_raw = &ms5611_read_raw,
 	.write_raw = &ms5611_write_raw,
 	.attrs = &ms5611_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ms5611_init(struct iio_dev *indio_dev)
diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c
index c413f8a84a63..e2f73e6dc58f 100644
--- a/drivers/iio/pressure/ms5637.c
+++ b/drivers/iio/pressure/ms5637.c
@@ -124,7 +124,6 @@ static const struct iio_info ms5637_info = {
 	.read_raw = ms5637_read_raw,
 	.write_raw = ms5637_write_raw,
 	.attrs = &ms5637_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ms5637_probe(struct i2c_client *client,
diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index 7d995937adba..e67eb0d971bf 100644
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -19,6 +19,8 @@ enum st_press_type {
 	LPS25H,
 	LPS331AP,
 	LPS22HB,
+	LPS33HW,
+	LPS35HW,
 	ST_PRESS_MAX,
 };
 
@@ -26,6 +28,8 @@ enum st_press_type {
 #define LPS25H_PRESS_DEV_NAME		"lps25h"
 #define LPS331AP_PRESS_DEV_NAME		"lps331ap"
 #define LPS22HB_PRESS_DEV_NAME		"lps22hb"
+#define LPS33HW_PRESS_DEV_NAME		"lps33hw"
+#define LPS35HW_PRESS_DEV_NAME		"lps35hw"
 
 /**
  * struct st_sensors_platform_data - default press platform data
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 34611a8ea2ce..349e5c713c03 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -280,14 +280,28 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.mask = 0x04,
 		},
 		.drdy_irq = {
-			.addr = 0x22,
-			.mask_int1 = 0x04,
-			.mask_int2 = 0x20,
+			.int1 = {
+				.addr = 0x22,
+				.mask = 0x04,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
+			.int2 = {
+				.addr = 0x22,
+				.mask = 0x20,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x03,
+			},
+		},
+		.sim = {
+			.addr = 0x20,
+			.value = BIT(0),
 		},
 		.multi_read_bit = true,
 		.bootime = 2,
@@ -335,8 +349,9 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.addr = 0x20,
 			.mask = 0x04,
 		},
-		.drdy_irq = {
-			.addr = 0,
+		.sim = {
+			.addr = 0x20,
+			.value = BIT(0),
 		},
 		.multi_read_bit = true,
 		.bootime = 2,
@@ -388,14 +403,22 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.mask = 0x04,
 		},
 		.drdy_irq = {
-			.addr = 0x23,
-			.mask_int1 = 0x01,
-			.mask_int2 = 0x00,
+			.int1 = {
+				.addr = 0x23,
+				.mask = 0x01,
+				.addr_od = 0x22,
+				.mask_od = 0x40,
+			},
 			.addr_ihl = 0x22,
 			.mask_ihl = 0x80,
-			.addr_od = 0x22,
-			.mask_od = 0x40,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x03,
+			},
+		},
+		.sim = {
+			.addr = 0x20,
+			.value = BIT(0),
 		},
 		.multi_read_bit = true,
 		.bootime = 2,
@@ -410,6 +433,8 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 		.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
 		.sensors_supported = {
 			[0] = LPS22HB_PRESS_DEV_NAME,
+			[1] = LPS33HW_PRESS_DEV_NAME,
+			[2] = LPS35HW_PRESS_DEV_NAME,
 		},
 		.ch = (struct iio_chan_spec *)st_press_lps22hb_channels,
 		.num_ch = ARRAY_SIZE(st_press_lps22hb_channels),
@@ -447,14 +472,22 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
 			.mask = 0x02,
 		},
 		.drdy_irq = {
-			.addr = 0x12,
-			.mask_int1 = 0x04,
-			.mask_int2 = 0x00,
+			.int1 = {
+				.addr = 0x12,
+				.mask = 0x04,
+				.addr_od = 0x12,
+				.mask_od = 0x40,
+			},
 			.addr_ihl = 0x12,
 			.mask_ihl = 0x80,
-			.addr_od = 0x12,
-			.mask_od = 0x40,
-			.addr_stat_drdy = ST_SENSORS_DEFAULT_STAT_ADDR,
+			.stat_drdy = {
+				.addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+				.mask = 0x03,
+			},
+		},
+		.sim = {
+			.addr = 0x10,
+			.value = BIT(0),
 		},
 		.multi_read_bit = false,
 		.bootime = 2,
@@ -547,7 +580,6 @@ static const struct attribute_group st_press_attribute_group = {
 };
 
 static const struct iio_info press_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &st_press_attribute_group,
 	.read_raw = &st_press_read_raw,
 	.write_raw = &st_press_write_raw,
@@ -556,7 +588,6 @@ static const struct iio_info press_info = {
 
 #ifdef CONFIG_IIO_TRIGGER
 static const struct iio_trigger_ops st_press_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = ST_PRESS_TRIGGER_SET_STATE,
 	.validate_device = st_sensors_validate_device,
 };
@@ -605,7 +636,8 @@ int st_press_common_probe(struct iio_dev *indio_dev)
 	press_data->odr = press_data->sensor_settings->odr.odr_avl[0].hz;
 
 	/* Some devices don't support a data ready pin. */
-	if (!pdata && press_data->sensor_settings->drdy_irq.addr)
+	if (!pdata && (press_data->sensor_settings->drdy_irq.int1.addr ||
+		       press_data->sensor_settings->drdy_irq.int2.addr))
 		pdata =	(struct st_sensors_platform_data *)&default_press_pdata;
 
 	err = st_sensors_init_sensor(indio_dev, press_data->dev->platform_data);
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 7f15e927fa2b..fbb59059e942 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -37,6 +37,14 @@ static const struct of_device_id st_press_of_match[] = {
 		.compatible = "st,lps22hb-press",
 		.data = LPS22HB_PRESS_DEV_NAME,
 	},
+	{
+		.compatible = "st,lps33hw",
+		.data = LPS33HW_PRESS_DEV_NAME,
+	},
+	{
+		.compatible = "st,lps35hw",
+		.data = LPS35HW_PRESS_DEV_NAME,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_press_of_match);
@@ -59,6 +67,8 @@ static const struct i2c_device_id st_press_id_table[] = {
 	{ LPS25H_PRESS_DEV_NAME,  LPS25H },
 	{ LPS331AP_PRESS_DEV_NAME, LPS331AP },
 	{ LPS22HB_PRESS_DEV_NAME, LPS22HB },
+	{ LPS33HW_PRESS_DEV_NAME, LPS33HW },
+	{ LPS35HW_PRESS_DEV_NAME, LPS35HW },
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, st_press_id_table);
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index f5ebd36bb4bf..9a3441b128e7 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -41,6 +41,14 @@ static const struct of_device_id st_press_of_match[] = {
 		.compatible = "st,lps22hb-press",
 		.data = LPS22HB_PRESS_DEV_NAME,
 	},
+	{
+		.compatible = "st,lps33hw",
+		.data = LPS33HW_PRESS_DEV_NAME,
+	},
+	{
+		.compatible = "st,lps35hw",
+		.data = LPS35HW_PRESS_DEV_NAME,
+	},
 	{},
 };
 MODULE_DEVICE_TABLE(of, st_press_of_match);
@@ -83,6 +91,8 @@ static const struct spi_device_id st_press_id_table[] = {
 	{ LPS25H_PRESS_DEV_NAME },
 	{ LPS331AP_PRESS_DEV_NAME },
 	{ LPS22HB_PRESS_DEV_NAME },
+	{ LPS33HW_PRESS_DEV_NAME },
+	{ LPS35HW_PRESS_DEV_NAME },
 	{},
 };
 MODULE_DEVICE_TABLE(spi, st_press_id_table);
diff --git a/drivers/iio/pressure/t5403.c b/drivers/iio/pressure/t5403.c
index 2667e71721f5..92c00f603b1d 100644
--- a/drivers/iio/pressure/t5403.c
+++ b/drivers/iio/pressure/t5403.c
@@ -209,7 +209,6 @@ static const struct iio_info t5403_info = {
 	.read_raw = &t5403_read_raw,
 	.write_raw = &t5403_write_raw,
 	.attrs = &t5403_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int t5403_probe(struct i2c_client *client,
diff --git a/drivers/iio/pressure/zpa2326.c b/drivers/iio/pressure/zpa2326.c
index ebfb1de7377f..81d8f24eaeb4 100644
--- a/drivers/iio/pressure/zpa2326.c
+++ b/drivers/iio/pressure/zpa2326.c
@@ -865,7 +865,6 @@ complete:
 static int zpa2326_wait_oneshot_completion(const struct iio_dev   *indio_dev,
 					   struct zpa2326_private *private)
 {
-	int          ret;
 	unsigned int val;
 	long     timeout;
 
@@ -887,14 +886,11 @@ static int zpa2326_wait_oneshot_completion(const struct iio_dev   *indio_dev,
 		/* Timed out. */
 		zpa2326_warn(indio_dev, "no one shot interrupt occurred (%ld)",
 			     timeout);
-		ret = -ETIME;
-	} else if (timeout < 0) {
-		zpa2326_warn(indio_dev,
-			     "wait for one shot interrupt cancelled");
-		ret = -ERESTARTSYS;
+		return -ETIME;
 	}
 
-	return ret;
+	zpa2326_warn(indio_dev, "wait for one shot interrupt cancelled");
+	return -ERESTARTSYS;
 }
 
 static int zpa2326_init_managed_irq(struct device          *parent,
@@ -1394,7 +1390,6 @@ static int zpa2326_set_trigger_state(struct iio_trigger *trig, bool state)
 }
 
 static const struct iio_trigger_ops zpa2326_trigger_ops = {
-	.owner             = THIS_MODULE,
 	.set_trigger_state = zpa2326_set_trigger_state,
 };
 
@@ -1594,7 +1589,6 @@ static const struct iio_chan_spec zpa2326_channels[] = {
 };
 
 static const struct iio_info zpa2326_info = {
-	.driver_module = THIS_MODULE,
 	.attrs         = &zpa2326_attribute_group,
 	.read_raw      = zpa2326_read_raw,
 	.write_raw     = zpa2326_write_raw,
diff --git a/drivers/iio/proximity/Kconfig b/drivers/iio/proximity/Kconfig
index ae070950f920..fcb1c4ba5e41 100644
--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -32,6 +32,16 @@ config LIDAR_LITE_V2
 	  To compile this driver as a module, choose M here: the
 	  module will be called pulsedlight-lite-v2
 
+config RFD77402
+	tristate "RFD77402 ToF sensor"
+	depends on I2C
+	help
+	  Say Y to build a driver for the RFD77420 Time-of-Flight (distance)
+	  sensor module with I2C interface.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called rfd77402.
+
 config SRF04
 	tristate "Devantech SRF04 ultrasonic ranger sensor"
 	depends on GPIOLIB
diff --git a/drivers/iio/proximity/Makefile b/drivers/iio/proximity/Makefile
index ed1b6f4cc209..4f4ed45e87ef 100644
--- a/drivers/iio/proximity/Makefile
+++ b/drivers/iio/proximity/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for IIO proximity sensors
 #
@@ -5,6 +6,7 @@
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_AS3935)		+= as3935.o
 obj-$(CONFIG_LIDAR_LITE_V2)	+= pulsedlight-lidar-lite-v2.o
+obj-$(CONFIG_RFD77402)		+= rfd77402.o
 obj-$(CONFIG_SRF04)		+= srf04.o
 obj-$(CONFIG_SRF08)		+= srf08.o
 obj-$(CONFIG_SX9500)		+= sx9500.o
diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c
index 0eeff29b61be..b6249af48014 100644
--- a/drivers/iio/proximity/as3935.c
+++ b/drivers/iio/proximity/as3935.c
@@ -39,8 +39,12 @@
 #define AS3935_AFE_GAIN_MAX	0x1F
 #define AS3935_AFE_PWR_BIT	BIT(0)
 
+#define AS3935_NFLWDTH		0x01
+#define AS3935_NFLWDTH_MASK	0x7f
+
 #define AS3935_INT		0x03
 #define AS3935_INT_MASK		0x0f
+#define AS3935_DISTURB_INT	BIT(2)
 #define AS3935_EVENT_INT	BIT(3)
 #define AS3935_NOISE_INT	BIT(0)
 
@@ -48,6 +52,7 @@
 #define AS3935_DATA_MASK	0x3F
 
 #define AS3935_TUNE_CAP		0x08
+#define AS3935_DEFAULTS		0x3C
 #define AS3935_CALIBRATE	0x3D
 
 #define AS3935_READ_DATA	BIT(14)
@@ -62,7 +67,9 @@ struct as3935_state {
 	struct mutex lock;
 	struct delayed_work work;
 
+	unsigned long noise_tripped;
 	u32 tune_cap;
+	u32 nflwdth_reg;
 	u8 buffer[16]; /* 8-bit data + 56-bit padding + 64-bit timestamp */
 	u8 buf[2] ____cacheline_aligned;
 };
@@ -145,12 +152,29 @@ static ssize_t as3935_sensor_sensitivity_store(struct device *dev,
 	return len;
 }
 
+static ssize_t as3935_noise_level_tripped_show(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	struct as3935_state *st = iio_priv(dev_to_iio_dev(dev));
+	int ret;
+
+	mutex_lock(&st->lock);
+	ret = sprintf(buf, "%d\n", !time_after(jiffies, st->noise_tripped + HZ));
+	mutex_unlock(&st->lock);
+
+	return ret;
+}
+
 static IIO_DEVICE_ATTR(sensor_sensitivity, S_IRUGO | S_IWUSR,
 	as3935_sensor_sensitivity_show, as3935_sensor_sensitivity_store, 0);
 
+static IIO_DEVICE_ATTR(noise_level_tripped, S_IRUGO,
+	as3935_noise_level_tripped_show, NULL, 0);
 
 static struct attribute *as3935_attributes[] = {
 	&iio_dev_attr_sensor_sensitivity.dev_attr.attr,
+	&iio_dev_attr_noise_level_tripped.dev_attr.attr,
 	NULL,
 };
 
@@ -197,7 +221,6 @@ static int as3935_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info as3935_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &as3935_attribute_group,
 	.read_raw = &as3935_read_raw,
 };
@@ -223,7 +246,6 @@ err_read:
 }
 
 static const struct iio_trigger_ops iio_interrupt_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static void as3935_event_work(struct work_struct *work)
@@ -246,7 +268,11 @@ static void as3935_event_work(struct work_struct *work)
 	case AS3935_EVENT_INT:
 		iio_trigger_poll_chained(st->trig);
 		break;
+	case AS3935_DISTURB_INT:
 	case AS3935_NOISE_INT:
+		mutex_lock(&st->lock);
+		st->noise_tripped = jiffies;
+		mutex_unlock(&st->lock);
 		dev_warn(&st->spi->dev, "noise level is too high\n");
 		break;
 	}
@@ -269,15 +295,14 @@ static irqreturn_t as3935_interrupt_handler(int irq, void *private)
 
 static void calibrate_as3935(struct as3935_state *st)
 {
-	/* mask disturber interrupt bit */
-	as3935_write(st, AS3935_INT, BIT(5));
-
+	as3935_write(st, AS3935_DEFAULTS, 0x96);
 	as3935_write(st, AS3935_CALIBRATE, 0x96);
 	as3935_write(st, AS3935_TUNE_CAP,
 		BIT(5) | (st->tune_cap / TUNE_CAP_DIV));
 
 	mdelay(2);
 	as3935_write(st, AS3935_TUNE_CAP, (st->tune_cap / TUNE_CAP_DIV));
+	as3935_write(st, AS3935_NFLWDTH, st->nflwdth_reg);
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -370,6 +395,15 @@ static int as3935_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
+	ret = of_property_read_u32(np,
+			"ams,nflwdth", &st->nflwdth_reg);
+	if (!ret && st->nflwdth_reg > AS3935_NFLWDTH_MASK) {
+		dev_err(&spi->dev,
+			"invalid nflwdth setting of %d\n",
+			st->nflwdth_reg);
+		return -EINVAL;
+	}
+
 	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->channels = as3935_channels;
@@ -384,6 +418,7 @@ static int as3935_probe(struct spi_device *spi)
 		return -ENOMEM;
 
 	st->trig = trig;
+	st->noise_tripped = jiffies - HZ;
 	trig->dev.parent = indio_dev->dev.parent;
 	iio_trigger_set_drvdata(trig, indio_dev);
 	trig->ops = &iio_interrupt_trigger_ops;
diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
index 36c1ddc251aa..4d56f67b24c6 100644
--- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
+++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c
@@ -249,7 +249,6 @@ static irqreturn_t lidar_trigger_handler(int irq, void *private)
 }
 
 static const struct iio_info lidar_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = lidar_read_raw,
 };
 
diff --git a/drivers/iio/proximity/rfd77402.c b/drivers/iio/proximity/rfd77402.c
new file mode 100644
index 000000000000..fe29fb1a19a6
--- /dev/null
+++ b/drivers/iio/proximity/rfd77402.c
@@ -0,0 +1,352 @@
+/*
+ * rfd77402.c - Support for RF Digital RFD77402 Time-of-Flight (distance) sensor
+ *
+ * Copyright 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * 7-bit I2C slave address 0x4c
+ *
+ * TODO: interrupt
+ * https://media.digikey.com/pdf/Data%20Sheets/RF%20Digital%20PDFs/RFD77402.pdf
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+
+#include <linux/iio/iio.h>
+
+#define RFD77402_DRV_NAME "rfd77402"
+
+#define RFD77402_ICSR		0x00 /* Interrupt Control Status Register */
+#define RFD77402_ICSR_INT_MODE	BIT(2)
+#define RFD77402_ICSR_INT_POL	BIT(3)
+#define RFD77402_ICSR_RESULT	BIT(4)
+#define RFD77402_ICSR_M2H_MSG	BIT(5)
+#define RFD77402_ICSR_H2M_MSG	BIT(6)
+#define RFD77402_ICSR_RESET	BIT(7)
+
+#define RFD77402_CMD_R		0x04
+#define RFD77402_CMD_SINGLE	0x01
+#define RFD77402_CMD_STANDBY	0x10
+#define RFD77402_CMD_MCPU_OFF	0x11
+#define RFD77402_CMD_MCPU_ON	0x12
+#define RFD77402_CMD_RESET	BIT(6)
+#define RFD77402_CMD_VALID	BIT(7)
+
+#define RFD77402_STATUS_R	0x06
+#define RFD77402_STATUS_PM_MASK	GENMASK(4, 0)
+#define RFD77402_STATUS_STANDBY	0x00
+#define RFD77402_STATUS_MCPU_OFF	0x10
+#define RFD77402_STATUS_MCPU_ON	0x18
+
+#define RFD77402_RESULT_R	0x08
+#define RFD77402_RESULT_DIST_MASK	GENMASK(12, 2)
+#define RFD77402_RESULT_ERR_MASK	GENMASK(14, 13)
+#define RFD77402_RESULT_VALID	BIT(15)
+
+#define RFD77402_PMU_CFG	0x14
+#define RFD77402_PMU_MCPU_INIT	BIT(9)
+
+#define RFD77402_I2C_INIT_CFG	0x1c
+#define RFD77402_I2C_ADDR_INCR	BIT(0)
+#define RFD77402_I2C_DATA_INCR	BIT(2)
+#define RFD77402_I2C_HOST_DEBUG	BIT(5)
+#define RFD77402_I2C_MCPU_DEBUG	BIT(6)
+
+#define RFD77402_CMD_CFGR_A	0x0c
+#define RFD77402_CMD_CFGR_B	0x0e
+#define RFD77402_HFCFG_0	0x20
+#define RFD77402_HFCFG_1	0x22
+#define RFD77402_HFCFG_2	0x24
+#define RFD77402_HFCFG_3	0x26
+
+#define RFD77402_MOD_CHIP_ID	0x28
+
+/* magic configuration values from datasheet */
+static const struct {
+	u8 reg;
+	u16 val;
+} rf77402_tof_config[] = {
+	{RFD77402_CMD_CFGR_A,	0xe100},
+	{RFD77402_CMD_CFGR_B,	0x10ff},
+	{RFD77402_HFCFG_0,	0x07d0},
+	{RFD77402_HFCFG_1,	0x5008},
+	{RFD77402_HFCFG_2,	0xa041},
+	{RFD77402_HFCFG_3,	0x45d4},
+};
+
+struct rfd77402_data {
+	struct i2c_client *client;
+	/* Serialize reads from the sensor */
+	struct mutex lock;
+};
+
+static const struct iio_chan_spec rfd77402_channels[] = {
+	{
+		.type = IIO_DISTANCE,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE),
+	},
+};
+
+static int rfd77402_set_state(struct rfd77402_data *data, u8 state, u16 check)
+{
+	int ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, RFD77402_CMD_R,
+					state | RFD77402_CMD_VALID);
+	if (ret < 0)
+		return ret;
+
+	usleep_range(10000, 20000);
+
+	ret = i2c_smbus_read_word_data(data->client, RFD77402_STATUS_R);
+	if (ret < 0)
+		return ret;
+	if ((ret & RFD77402_STATUS_PM_MASK) != check)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int rfd77402_measure(struct rfd77402_data *data)
+{
+	int ret;
+	int tries = 10;
+
+	ret = rfd77402_set_state(data, RFD77402_CMD_MCPU_ON,
+				 RFD77402_STATUS_MCPU_ON);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, RFD77402_CMD_R,
+					RFD77402_CMD_SINGLE |
+					RFD77402_CMD_VALID);
+	if (ret < 0)
+		goto err;
+
+	while (tries-- > 0) {
+		ret = i2c_smbus_read_byte_data(data->client, RFD77402_ICSR);
+		if (ret < 0)
+			goto err;
+		if (ret & RFD77402_ICSR_RESULT)
+			break;
+		msleep(20);
+	}
+
+	if (tries < 0) {
+		ret = -ETIMEDOUT;
+		goto err;
+	}
+
+	ret = i2c_smbus_read_word_data(data->client, RFD77402_RESULT_R);
+	if (ret < 0)
+		goto err;
+
+	if ((ret & RFD77402_RESULT_ERR_MASK) ||
+	    !(ret & RFD77402_RESULT_VALID)) {
+		ret = -EIO;
+		goto err;
+	}
+
+	return (ret & RFD77402_RESULT_DIST_MASK) >> 2;
+
+err:
+	rfd77402_set_state(data, RFD77402_CMD_MCPU_OFF,
+			   RFD77402_STATUS_MCPU_OFF);
+	return ret;
+}
+
+static int rfd77402_read_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int *val, int *val2, long mask)
+{
+	struct rfd77402_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		mutex_lock(&data->lock);
+		ret = rfd77402_measure(data);
+		mutex_unlock(&data->lock);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		/* 1 LSB is 1 mm */
+		*val = 0;
+		*val2 = 1000;
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info rfd77402_info = {
+	.read_raw = rfd77402_read_raw,
+};
+
+static int rfd77402_init(struct rfd77402_data *data)
+{
+	int ret, i;
+
+	ret = rfd77402_set_state(data, RFD77402_CMD_STANDBY,
+				 RFD77402_STATUS_STANDBY);
+	if (ret < 0)
+		return ret;
+
+	/* configure INT pad as push-pull, active low */
+	ret = i2c_smbus_write_byte_data(data->client, RFD77402_ICSR,
+					RFD77402_ICSR_INT_MODE);
+	if (ret < 0)
+		return ret;
+
+	/* I2C configuration */
+	ret = i2c_smbus_write_word_data(data->client, RFD77402_I2C_INIT_CFG,
+					RFD77402_I2C_ADDR_INCR |
+					RFD77402_I2C_DATA_INCR |
+					RFD77402_I2C_HOST_DEBUG	|
+					RFD77402_I2C_MCPU_DEBUG);
+	if (ret < 0)
+		return ret;
+
+	/* set initialization */
+	ret = i2c_smbus_write_word_data(data->client, RFD77402_PMU_CFG, 0x0500);
+	if (ret < 0)
+		return ret;
+
+	ret = rfd77402_set_state(data, RFD77402_CMD_MCPU_OFF,
+				 RFD77402_STATUS_MCPU_OFF);
+	if (ret < 0)
+		return ret;
+
+	/* set initialization */
+	ret = i2c_smbus_write_word_data(data->client, RFD77402_PMU_CFG, 0x0600);
+	if (ret < 0)
+		return ret;
+
+	ret = rfd77402_set_state(data, RFD77402_CMD_MCPU_ON,
+				 RFD77402_STATUS_MCPU_ON);
+	if (ret < 0)
+		return ret;
+
+	for (i = 0; i < ARRAY_SIZE(rf77402_tof_config); i++) {
+		ret = i2c_smbus_write_word_data(data->client,
+						rf77402_tof_config[i].reg,
+						rf77402_tof_config[i].val);
+		if (ret < 0)
+			return ret;
+	}
+
+	ret = rfd77402_set_state(data, RFD77402_CMD_STANDBY,
+				 RFD77402_STATUS_STANDBY);
+
+	return ret;
+}
+
+static int rfd77402_powerdown(struct rfd77402_data *data)
+{
+	return rfd77402_set_state(data, RFD77402_CMD_STANDBY,
+				  RFD77402_STATUS_STANDBY);
+}
+
+static int rfd77402_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	struct rfd77402_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	ret = i2c_smbus_read_word_data(client, RFD77402_MOD_CHIP_ID);
+	if (ret < 0)
+		return ret;
+	if (ret != 0xad01 && ret != 0xad02) /* known chip ids */
+		return -ENODEV;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	mutex_init(&data->lock);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &rfd77402_info;
+	indio_dev->channels = rfd77402_channels;
+	indio_dev->num_channels = ARRAY_SIZE(rfd77402_channels);
+	indio_dev->name = RFD77402_DRV_NAME;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = rfd77402_init(data);
+	if (ret < 0)
+		return ret;
+
+	ret = iio_device_register(indio_dev);
+	if (ret)
+		goto err_powerdown;
+
+	return 0;
+
+err_powerdown:
+	rfd77402_powerdown(data);
+	return ret;
+}
+
+static int rfd77402_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	iio_device_unregister(indio_dev);
+	rfd77402_powerdown(iio_priv(indio_dev));
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int rfd77402_suspend(struct device *dev)
+{
+	struct rfd77402_data *data = iio_priv(i2c_get_clientdata(
+				     to_i2c_client(dev)));
+
+	return rfd77402_powerdown(data);
+}
+
+static int rfd77402_resume(struct device *dev)
+{
+	struct rfd77402_data *data = iio_priv(i2c_get_clientdata(
+				     to_i2c_client(dev)));
+
+	return rfd77402_init(data);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(rfd77402_pm_ops, rfd77402_suspend, rfd77402_resume);
+
+static const struct i2c_device_id rfd77402_id[] = {
+	{ "rfd77402", 0},
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, rfd77402_id);
+
+static struct i2c_driver rfd77402_driver = {
+	.driver = {
+		.name   = RFD77402_DRV_NAME,
+		.pm     = &rfd77402_pm_ops,
+	},
+	.probe  = rfd77402_probe,
+	.remove = rfd77402_remove,
+	.id_table = rfd77402_id,
+};
+
+module_i2c_driver(rfd77402_driver);
+
+MODULE_AUTHOR("Peter Meerwald-Stadler <pmeerw@pmeerw.net>");
+MODULE_DESCRIPTION("RFD77402 Time-of-Flight sensor driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/iio/proximity/srf04.c b/drivers/iio/proximity/srf04.c
index e37667f933b3..09c7b9c095b0 100644
--- a/drivers/iio/proximity/srf04.c
+++ b/drivers/iio/proximity/srf04.c
@@ -203,7 +203,6 @@ static int srf04_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info srf04_iio_info = {
-	.driver_module		= THIS_MODULE,
 	.read_raw		= srf04_read_raw,
 };
 
diff --git a/drivers/iio/proximity/srf08.c b/drivers/iio/proximity/srf08.c
index 9380d545aab1..f2bf783f829a 100644
--- a/drivers/iio/proximity/srf08.c
+++ b/drivers/iio/proximity/srf08.c
@@ -436,7 +436,6 @@ static const struct iio_chan_spec srf08_channels[] = {
 static const struct iio_info srf08_info = {
 	.read_raw = srf08_read_raw,
 	.attrs = &srf08_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 /*
@@ -445,7 +444,6 @@ static const struct iio_info srf08_info = {
  */
 static const struct iio_info srf02_info = {
 	.read_raw = srf08_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int srf08_probe(struct i2c_client *client,
diff --git a/drivers/iio/proximity/sx9500.c b/drivers/iio/proximity/sx9500.c
index f42b3a1c75ff..53c5d653e780 100644
--- a/drivers/iio/proximity/sx9500.c
+++ b/drivers/iio/proximity/sx9500.c
@@ -615,7 +615,6 @@ static const struct attribute_group sx9500_attribute_group = {
 };
 
 static const struct iio_info sx9500_info = {
-	.driver_module = THIS_MODULE,
 	.attrs = &sx9500_attribute_group,
 	.read_raw = &sx9500_read_raw,
 	.write_raw = &sx9500_write_raw,
@@ -650,7 +649,6 @@ out:
 
 static const struct iio_trigger_ops sx9500_trigger_ops = {
 	.set_trigger_state = sx9500_set_trigger_state,
-	.owner = THIS_MODULE,
 };
 
 static irqreturn_t sx9500_trigger_handler(int irq, void *private)
diff --git a/drivers/iio/temperature/Makefile b/drivers/iio/temperature/Makefile
index ad1d668de546..34bd9023727b 100644
--- a/drivers/iio/temperature/Makefile
+++ b/drivers/iio/temperature/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O temperature drivers
 #
diff --git a/drivers/iio/temperature/hid-sensor-temperature.c b/drivers/iio/temperature/hid-sensor-temperature.c
index c01efeca4002..beaf6fd3e337 100644
--- a/drivers/iio/temperature/hid-sensor-temperature.c
+++ b/drivers/iio/temperature/hid-sensor-temperature.c
@@ -123,7 +123,6 @@ static int temperature_write_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info temperature_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &temperature_read_raw,
 	.write_raw = &temperature_write_raw,
 };
diff --git a/drivers/iio/temperature/maxim_thermocouple.c b/drivers/iio/temperature/maxim_thermocouple.c
index d70e2e53d6a7..e8b7e0b6c8ad 100644
--- a/drivers/iio/temperature/maxim_thermocouple.c
+++ b/drivers/iio/temperature/maxim_thermocouple.c
@@ -208,7 +208,6 @@ static int maxim_thermocouple_read_raw(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info maxim_thermocouple_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = maxim_thermocouple_read_raw,
 };
 
diff --git a/drivers/iio/temperature/mlx90614.c b/drivers/iio/temperature/mlx90614.c
index 2077eef4095c..d619e8634a00 100644
--- a/drivers/iio/temperature/mlx90614.c
+++ b/drivers/iio/temperature/mlx90614.c
@@ -400,7 +400,6 @@ static const struct iio_info mlx90614_info = {
 	.write_raw = mlx90614_write_raw,
 	.write_raw_get_fmt = mlx90614_write_raw_get_fmt,
 	.attrs = &mlx90614_attr_group,
-	.driver_module = THIS_MODULE,
 };
 
 #ifdef CONFIG_PM
diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c
index 18c9b43c02cb..a9b5b7cc7836 100644
--- a/drivers/iio/temperature/tmp006.c
+++ b/drivers/iio/temperature/tmp006.c
@@ -179,7 +179,6 @@ static const struct iio_info tmp006_info = {
 	.read_raw = tmp006_read_raw,
 	.write_raw = tmp006_write_raw,
 	.attrs = &tmp006_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static bool tmp006_check_identification(struct i2c_client *client)
diff --git a/drivers/iio/temperature/tmp007.c b/drivers/iio/temperature/tmp007.c
index 0615324d054c..0e3f2d432e10 100644
--- a/drivers/iio/temperature/tmp007.c
+++ b/drivers/iio/temperature/tmp007.c
@@ -426,7 +426,6 @@ static const struct iio_info tmp007_info = {
 	.read_event_value = tmp007_read_thresh,
 	.write_event_value = tmp007_write_thresh,
 	.attrs = &tmp007_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static bool tmp007_identify(struct i2c_client *client)
diff --git a/drivers/iio/temperature/tsys01.c b/drivers/iio/temperature/tsys01.c
index d8aa211d76e4..3799d007c8e7 100644
--- a/drivers/iio/temperature/tsys01.c
+++ b/drivers/iio/temperature/tsys01.c
@@ -111,7 +111,6 @@ static const struct iio_chan_spec tsys01_channels[] = {
 
 static const struct iio_info tsys01_info = {
 	.read_raw = tsys01_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static bool tsys01_crc_valid(u16 *n_prom)
diff --git a/drivers/iio/temperature/tsys02d.c b/drivers/iio/temperature/tsys02d.c
index c0a19a000387..9b2e56fa5fd5 100644
--- a/drivers/iio/temperature/tsys02d.c
+++ b/drivers/iio/temperature/tsys02d.c
@@ -120,7 +120,6 @@ static const struct iio_info tsys02d_info = {
 	.read_raw = tsys02d_read_raw,
 	.write_raw = tsys02d_write_raw,
 	.attrs = &tsys02d_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int tsys02d_probe(struct i2c_client *client,
diff --git a/drivers/iio/trigger/Makefile b/drivers/iio/trigger/Makefile
index 0a72a2a76cb2..f3d11acb8a0b 100644
--- a/drivers/iio/trigger/Makefile
+++ b/drivers/iio/trigger/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for triggers not associated with iio-devices
 #
diff --git a/drivers/iio/trigger/iio-trig-hrtimer.c b/drivers/iio/trigger/iio-trig-hrtimer.c
index a1cad6cc2e0f..7accd0187ba1 100644
--- a/drivers/iio/trigger/iio-trig-hrtimer.c
+++ b/drivers/iio/trigger/iio-trig-hrtimer.c
@@ -30,7 +30,7 @@ struct iio_hrtimer_info {
 	ktime_t period;
 };
 
-static struct config_item_type iio_hrtimer_type = {
+static const struct config_item_type iio_hrtimer_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -114,7 +114,6 @@ static int iio_trig_hrtimer_set_state(struct iio_trigger *trig, bool state)
 }
 
 static const struct iio_trigger_ops iio_hrtimer_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = iio_trig_hrtimer_set_state,
 };
 
diff --git a/drivers/iio/trigger/iio-trig-interrupt.c b/drivers/iio/trigger/iio-trig-interrupt.c
index e18f12b74610..171c4ed03543 100644
--- a/drivers/iio/trigger/iio-trig-interrupt.c
+++ b/drivers/iio/trigger/iio-trig-interrupt.c
@@ -29,7 +29,6 @@ static irqreturn_t iio_interrupt_trigger_poll(int irq, void *private)
 }
 
 static const struct iio_trigger_ops iio_interrupt_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static int iio_interrupt_trigger_probe(struct platform_device *pdev)
diff --git a/drivers/iio/trigger/iio-trig-loop.c b/drivers/iio/trigger/iio-trig-loop.c
index dc6be28f96fe..94a90e0a3fdb 100644
--- a/drivers/iio/trigger/iio-trig-loop.c
+++ b/drivers/iio/trigger/iio-trig-loop.c
@@ -36,7 +36,7 @@ struct iio_loop_info {
 	struct task_struct *task;
 };
 
-static struct config_item_type iio_loop_type = {
+static const struct config_item_type iio_loop_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -74,7 +74,6 @@ static int iio_loop_trigger_set_state(struct iio_trigger *trig, bool state)
 
 static const struct iio_trigger_ops iio_loop_trigger_ops = {
 	.set_trigger_state = iio_loop_trigger_set_state,
-	.owner = THIS_MODULE,
 };
 
 static struct iio_sw_trigger *iio_trig_loop_probe(const char *name)
diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c
index 202e8b89caf2..3f0dc9a1a514 100644
--- a/drivers/iio/trigger/iio-trig-sysfs.c
+++ b/drivers/iio/trigger/iio-trig-sysfs.c
@@ -127,7 +127,6 @@ static const struct attribute_group *iio_sysfs_trigger_attr_groups[] = {
 };
 
 static const struct iio_trigger_ops iio_sysfs_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static int iio_sysfs_trigger_probe(int id)
diff --git a/drivers/iio/trigger/stm32-lptimer-trigger.c b/drivers/iio/trigger/stm32-lptimer-trigger.c
index 241eae6a4306..de361d879929 100644
--- a/drivers/iio/trigger/stm32-lptimer-trigger.c
+++ b/drivers/iio/trigger/stm32-lptimer-trigger.c
@@ -37,7 +37,6 @@ static int stm32_lptim_validate_device(struct iio_trigger *trig,
 }
 
 static const struct iio_trigger_ops stm32_lptim_trigger_ops = {
-	.owner = THIS_MODULE,
 	.validate_device = stm32_lptim_validate_device,
 };
 
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 9b9053494daf..b542dc484969 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -174,6 +174,7 @@ static void stm32_timer_stop(struct stm32_timer_trigger *priv)
 		clk_disable(priv->clk);
 
 	/* Stop timer */
+	regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0);
 	regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_CEN, 0);
 	regmap_write(priv->regmap, TIM_PSC, 0);
 	regmap_write(priv->regmap, TIM_ARR, 0);
@@ -354,7 +355,6 @@ static const struct attribute_group *stm32_trigger_attr_groups[] = {
 };
 
 static const struct iio_trigger_ops timer_trigger_ops = {
-	.owner = THIS_MODULE,
 };
 
 static int stm32_setup_iio_triggers(struct stm32_timer_trigger *priv)
@@ -492,7 +492,6 @@ static int stm32_counter_validate_trigger(struct iio_dev *indio_dev,
 }
 
 static const struct iio_info stm32_trigger_info = {
-	.driver_module = THIS_MODULE,
 	.validate_trigger = stm32_counter_validate_trigger,
 	.read_raw = stm32_counter_read_raw,
 	.write_raw = stm32_counter_write_raw
@@ -715,8 +714,9 @@ static ssize_t stm32_count_set_preset(struct iio_dev *indio_dev,
 	if (ret)
 		return ret;
 
+	/* TIMx_ARR register shouldn't be buffered (ARPE=0) */
+	regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, 0);
 	regmap_write(priv->regmap, TIM_ARR, preset);
-	regmap_update_bits(priv->regmap, TIM_CR1, TIM_CR1_ARPE, TIM_CR1_ARPE);
 
 	return len;
 }
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile
index b4df164f71a6..9c0a2b5c834e 100644
--- a/drivers/infiniband/core/Makefile
+++ b/drivers/infiniband/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 infiniband-$(CONFIG_INFINIBAND_ADDR_TRANS)	:= rdma_cm.o
 user_access-$(CONFIG_INFINIBAND_ADDR_TRANS)	:= rdma_ucm.o
 
diff --git a/drivers/infiniband/core/cma_configfs.c b/drivers/infiniband/core/cma_configfs.c
index 54076a3e8007..31dfee0c8295 100644
--- a/drivers/infiniband/core/cma_configfs.c
+++ b/drivers/infiniband/core/cma_configfs.c
@@ -186,7 +186,7 @@ static struct configfs_attribute *cma_configfs_attributes[] = {
 	NULL,
 };
 
-static struct config_item_type cma_port_group_type = {
+static const struct config_item_type cma_port_group_type = {
 	.ct_attrs	= cma_configfs_attributes,
 	.ct_owner	= THIS_MODULE
 };
@@ -263,7 +263,7 @@ static struct configfs_item_operations cma_ports_item_ops = {
 	.release = release_cma_ports_group
 };
 
-static struct config_item_type cma_ports_group_type = {
+static const struct config_item_type cma_ports_group_type = {
 	.ct_item_ops	= &cma_ports_item_ops,
 	.ct_owner	= THIS_MODULE
 };
@@ -272,7 +272,7 @@ static struct configfs_item_operations cma_device_item_ops = {
 	.release = release_cma_dev
 };
 
-static struct config_item_type cma_device_group_type = {
+static const struct config_item_type cma_device_group_type = {
 	.ct_item_ops	= &cma_device_item_ops,
 	.ct_owner	= THIS_MODULE
 };
@@ -323,7 +323,7 @@ static struct configfs_group_operations cma_subsys_group_ops = {
 	.make_group	= make_cma_dev,
 };
 
-static struct config_item_type cma_subsys_type = {
+static const struct config_item_type cma_subsys_type = {
 	.ct_group_ops	= &cma_subsys_group_ops,
 	.ct_owner	= THIS_MODULE,
 };
diff --git a/drivers/infiniband/core/iwpm_msg.c b/drivers/infiniband/core/iwpm_msg.c
index 30825bb9b8e9..8861c052155a 100644
--- a/drivers/infiniband/core/iwpm_msg.c
+++ b/drivers/infiniband/core/iwpm_msg.c
@@ -100,6 +100,8 @@ int iwpm_register_pid(struct iwpm_dev_data *pm_msg, u8 nl_client)
 	if (ret)
 		goto pid_query_error;
 
+	nlmsg_end(skb, nlh);
+
 	pr_debug("%s: Multicasting a nlmsg (dev = %s ifname = %s iwpm = %s)\n",
 		__func__, pm_msg->dev_name, pm_msg->if_name, iwpm_ulib_name);
 
@@ -170,6 +172,8 @@ int iwpm_add_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
 				&pm_msg->loc_addr, IWPM_NLA_MANAGE_ADDR);
 	if (ret)
 		goto add_mapping_error;
+
+	nlmsg_end(skb, nlh);
 	nlmsg_request->req_buffer = pm_msg;
 
 	ret = rdma_nl_unicast_wait(skb, iwpm_user_pid);
@@ -246,6 +250,8 @@ int iwpm_add_and_query_mapping(struct iwpm_sa_data *pm_msg, u8 nl_client)
 				&pm_msg->rem_addr, IWPM_NLA_QUERY_REMOTE_ADDR);
 	if (ret)
 		goto query_mapping_error;
+
+	nlmsg_end(skb, nlh);
 	nlmsg_request->req_buffer = pm_msg;
 
 	ret = rdma_nl_unicast_wait(skb, iwpm_user_pid);
@@ -308,6 +314,8 @@ int iwpm_remove_mapping(struct sockaddr_storage *local_addr, u8 nl_client)
 	if (ret)
 		goto remove_mapping_error;
 
+	nlmsg_end(skb, nlh);
+
 	ret = rdma_nl_unicast_wait(skb, iwpm_user_pid);
 	if (ret) {
 		skb = NULL; /* skb is freed in the netlink send-op handling */
diff --git a/drivers/infiniband/core/iwpm_util.c b/drivers/infiniband/core/iwpm_util.c
index c81c55942626..3c4faadb8cdd 100644
--- a/drivers/infiniband/core/iwpm_util.c
+++ b/drivers/infiniband/core/iwpm_util.c
@@ -597,6 +597,9 @@ static int send_mapinfo_num(u32 mapping_num, u8 nl_client, int iwpm_pid)
 				&mapping_num, IWPM_NLA_MAPINFO_SEND_NUM);
 	if (ret)
 		goto mapinfo_num_error;
+
+	nlmsg_end(skb, nlh);
+
 	ret = rdma_nl_unicast(skb, iwpm_pid);
 	if (ret) {
 		skb = NULL;
@@ -678,6 +681,8 @@ int iwpm_send_mapinfo(u8 nl_client, int iwpm_pid)
 			if (ret)
 				goto send_mapping_info_unlock;
 
+			nlmsg_end(skb, nlh);
+
 			iwpm_print_sockaddr(&map_info->local_sockaddr,
 				"send_mapping_info: Local sockaddr:");
 			iwpm_print_sockaddr(&map_info->mapped_sockaddr,
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index b12e58787c3d..1fb72c356e36 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -175,13 +175,24 @@ static int rdma_nl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
 	    !netlink_capable(skb, CAP_NET_ADMIN))
 		return -EPERM;
 
+	/*
+	 * LS responses overload the 0x100 (NLM_F_ROOT) flag.  Don't
+	 * mistakenly call the .dump() function.
+	 */
+	if (index == RDMA_NL_LS) {
+		if (cb_table[op].doit)
+			return cb_table[op].doit(skb, nlh, extack);
+		return -EINVAL;
+	}
 	/* FIXME: Convert IWCM to properly handle doit callbacks */
 	if ((nlh->nlmsg_flags & NLM_F_DUMP) || index == RDMA_NL_RDMA_CM ||
 	    index == RDMA_NL_IWCM) {
 		struct netlink_dump_control c = {
 			.dump = cb_table[op].dump,
 		};
-		return netlink_dump_start(nls, skb, nlh, &c);
+		if (c.dump)
+			return netlink_dump_start(nls, skb, nlh, &c);
+		return -EINVAL;
 	}
 
 	if (cb_table[op].doit)
diff --git a/drivers/infiniband/core/nldev.c b/drivers/infiniband/core/nldev.c
index 3ba24c428c3b..2fae850a3eff 100644
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -214,7 +214,9 @@ static int nldev_port_get_doit(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	err = nlmsg_parse(nlh, 0, tb, RDMA_NLDEV_ATTR_MAX - 1,
 			  nldev_policy, extack);
-	if (err || !tb[RDMA_NLDEV_ATTR_PORT_INDEX])
+	if (err ||
+	    !tb[RDMA_NLDEV_ATTR_DEV_INDEX] ||
+	    !tb[RDMA_NLDEV_ATTR_PORT_INDEX])
 		return -EINVAL;
 
 	index = nla_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c
index 70ad19c4c73e..88bdafb297f5 100644
--- a/drivers/infiniband/core/security.c
+++ b/drivers/infiniband/core/security.c
@@ -432,8 +432,10 @@ int ib_create_qp_security(struct ib_qp *qp, struct ib_device *dev)
 	atomic_set(&qp->qp_sec->error_list_count, 0);
 	init_completion(&qp->qp_sec->error_complete);
 	ret = security_ib_alloc_security(&qp->qp_sec->security);
-	if (ret)
+	if (ret) {
 		kfree(qp->qp_sec);
+		qp->qp_sec = NULL;
+	}
 
 	return ret;
 }
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 4ab30d832ac5..52a2cf2d83aa 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -3869,15 +3869,15 @@ int ib_uverbs_ex_query_device(struct ib_uverbs_file *file,
 	resp.raw_packet_caps = attr.raw_packet_caps;
 	resp.response_length += sizeof(resp.raw_packet_caps);
 
-	if (ucore->outlen < resp.response_length + sizeof(resp.xrq_caps))
+	if (ucore->outlen < resp.response_length + sizeof(resp.tm_caps))
 		goto end;
 
-	resp.xrq_caps.max_rndv_hdr_size = attr.xrq_caps.max_rndv_hdr_size;
-	resp.xrq_caps.max_num_tags      = attr.xrq_caps.max_num_tags;
-	resp.xrq_caps.max_ops		= attr.xrq_caps.max_ops;
-	resp.xrq_caps.max_sge		= attr.xrq_caps.max_sge;
-	resp.xrq_caps.flags		= attr.xrq_caps.flags;
-	resp.response_length += sizeof(resp.xrq_caps);
+	resp.tm_caps.max_rndv_hdr_size	= attr.tm_caps.max_rndv_hdr_size;
+	resp.tm_caps.max_num_tags	= attr.tm_caps.max_num_tags;
+	resp.tm_caps.max_ops		= attr.tm_caps.max_ops;
+	resp.tm_caps.max_sge		= attr.tm_caps.max_sge;
+	resp.tm_caps.flags		= attr.tm_caps.flags;
+	resp.response_length += sizeof(resp.tm_caps);
 end:
 	err = ib_copy_to_udata(ucore, &resp, resp.response_length);
 	return err;
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index ee9e27dc799b..de57d6c11a25 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1646,7 +1646,7 @@ static bool is_valid_mcast_lid(struct ib_qp *qp, u16 lid)
 	 */
 	if (!ib_query_qp(qp, &attr, IB_QP_STATE | IB_QP_PORT, &init_attr)) {
 		if (attr.qp_state >= IB_QPS_INIT) {
-			if (qp->device->get_link_layer(qp->device, attr.port_num) !=
+			if (rdma_port_get_link_layer(qp->device, attr.port_num) !=
 			    IB_LINK_LAYER_INFINIBAND)
 				return true;
 			goto lid_check;
@@ -1655,7 +1655,7 @@ static bool is_valid_mcast_lid(struct ib_qp *qp, u16 lid)
 
 	/* Can't get a quick answer, iterate over all ports */
 	for (port = 0; port < qp->device->phys_port_cnt; port++)
-		if (qp->device->get_link_layer(qp->device, port) !=
+		if (rdma_port_get_link_layer(qp->device, port) !=
 		    IB_LINK_LAYER_INFINIBAND)
 			num_eth_ports++;
 
diff --git a/drivers/infiniband/hw/Makefile b/drivers/infiniband/hw/Makefile
index 34c93abf0fe0..e4f31c1be8f7 100644
--- a/drivers/infiniband/hw/Makefile
+++ b/drivers/infiniband/hw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INFINIBAND_MTHCA)		+= mthca/
 obj-$(CONFIG_INFINIBAND_QIB)		+= qib/
 obj-$(CONFIG_INFINIBAND_CXGB3)		+= cxgb3/
diff --git a/drivers/infiniband/hw/bnxt_re/Makefile b/drivers/infiniband/hw/bnxt_re/Makefile
index afbaa0e20670..6e3bc25cc140 100644
--- a/drivers/infiniband/hw/bnxt_re/Makefile
+++ b/drivers/infiniband/hw/bnxt_re/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 ccflags-y := -Idrivers/net/ethernet/broadcom/bnxt
 obj-$(CONFIG_INFINIBAND_BNXT_RE) += bnxt_re.o
diff --git a/drivers/infiniband/hw/bnxt_re/bnxt_re.h b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
index b3ad37fec578..ecbac91b2e14 100644
--- a/drivers/infiniband/hw/bnxt_re/bnxt_re.h
+++ b/drivers/infiniband/hw/bnxt_re/bnxt_re.h
@@ -93,11 +93,13 @@ struct bnxt_re_dev {
 	struct ib_device		ibdev;
 	struct list_head		list;
 	unsigned long			flags;
-#define BNXT_RE_FLAG_NETDEV_REGISTERED	0
-#define BNXT_RE_FLAG_IBDEV_REGISTERED	1
-#define BNXT_RE_FLAG_GOT_MSIX		2
-#define BNXT_RE_FLAG_RCFW_CHANNEL_EN	8
-#define BNXT_RE_FLAG_QOS_WORK_REG	16
+#define BNXT_RE_FLAG_NETDEV_REGISTERED		0
+#define BNXT_RE_FLAG_IBDEV_REGISTERED		1
+#define BNXT_RE_FLAG_GOT_MSIX			2
+#define BNXT_RE_FLAG_HAVE_L2_REF		3
+#define BNXT_RE_FLAG_RCFW_CHANNEL_EN		4
+#define BNXT_RE_FLAG_QOS_WORK_REG		5
+#define BNXT_RE_FLAG_TASK_IN_PROG		6
 	struct net_device		*netdev;
 	unsigned int			version, major, minor;
 	struct bnxt_en_dev		*en_dev;
@@ -108,6 +110,8 @@ struct bnxt_re_dev {
 
 	struct delayed_work		worker;
 	u8				cur_prio_map;
+	u8				active_speed;
+	u8				active_width;
 
 	/* FP Notification Queue (CQ & SRQ) */
 	struct tasklet_struct		nq_task;
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 01eee15bbd65..0d89621d9fe8 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -259,14 +259,9 @@ int bnxt_re_query_port(struct ib_device *ibdev, u8 port_num,
 	port_attr->sm_sl = 0;
 	port_attr->subnet_timeout = 0;
 	port_attr->init_type_reply = 0;
-	/* call the underlying netdev's ethtool hooks to query speed settings
-	 * for which we acquire rtnl_lock _only_ if it's registered with
-	 * IB stack to avoid race in the NETDEV_UNREG path
-	 */
-	if (test_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags))
-		if (ib_get_eth_speed(ibdev, port_num, &port_attr->active_speed,
-				     &port_attr->active_width))
-			return -EINVAL;
+	port_attr->active_speed = rdev->active_speed;
+	port_attr->active_width = rdev->active_width;
+
 	return 0;
 }
 
@@ -319,6 +314,7 @@ int bnxt_re_del_gid(struct ib_device *ibdev, u8 port_num,
 	struct bnxt_re_gid_ctx *ctx, **ctx_tbl;
 	struct bnxt_re_dev *rdev = to_bnxt_re_dev(ibdev, ibdev);
 	struct bnxt_qplib_sgid_tbl *sgid_tbl = &rdev->qplib_res.sgid_tbl;
+	struct bnxt_qplib_gid *gid_to_del;
 
 	/* Delete the entry from the hardware */
 	ctx = *context;
@@ -328,11 +324,25 @@ int bnxt_re_del_gid(struct ib_device *ibdev, u8 port_num,
 	if (sgid_tbl && sgid_tbl->active) {
 		if (ctx->idx >= sgid_tbl->max)
 			return -EINVAL;
+		gid_to_del = &sgid_tbl->tbl[ctx->idx];
+		/* DEL_GID is called in WQ context(netdevice_event_work_handler)
+		 * or via the ib_unregister_device path. In the former case QP1
+		 * may not be destroyed yet, in which case just return as FW
+		 * needs that entry to be present and will fail it's deletion.
+		 * We could get invoked again after QP1 is destroyed OR get an
+		 * ADD_GID call with a different GID value for the same index
+		 * where we issue MODIFY_GID cmd to update the GID entry -- TBD
+		 */
+		if (ctx->idx == 0 &&
+		    rdma_link_local_addr((struct in6_addr *)gid_to_del) &&
+		    ctx->refcnt == 1 && rdev->qp1_sqp) {
+			dev_dbg(rdev_to_dev(rdev),
+				"Trying to delete GID0 while QP1 is alive\n");
+			return -EFAULT;
+		}
 		ctx->refcnt--;
 		if (!ctx->refcnt) {
-			rc = bnxt_qplib_del_sgid(sgid_tbl,
-						 &sgid_tbl->tbl[ctx->idx],
-						 true);
+			rc = bnxt_qplib_del_sgid(sgid_tbl, gid_to_del, true);
 			if (rc) {
 				dev_err(rdev_to_dev(rdev),
 					"Failed to remove GID: %#x", rc);
@@ -816,6 +826,8 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp)
 
 		kfree(rdev->sqp_ah);
 		kfree(rdev->qp1_sqp);
+		rdev->qp1_sqp = NULL;
+		rdev->sqp_ah = NULL;
 	}
 
 	if (!IS_ERR_OR_NULL(qp->rumem))
@@ -1436,11 +1448,14 @@ int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 		qp->qplib_qp.modify_flags |=
 				CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
 		qp->qplib_qp.path_mtu = __from_ib_mtu(qp_attr->path_mtu);
+		qp->qplib_qp.mtu = ib_mtu_enum_to_int(qp_attr->path_mtu);
 	} else if (qp_attr->qp_state == IB_QPS_RTR) {
 		qp->qplib_qp.modify_flags |=
 			CMDQ_MODIFY_QP_MODIFY_MASK_PATH_MTU;
 		qp->qplib_qp.path_mtu =
 			__from_ib_mtu(iboe_get_mtu(rdev->netdev->mtu));
+		qp->qplib_qp.mtu =
+			ib_mtu_enum_to_int(iboe_get_mtu(rdev->netdev->mtu));
 	}
 
 	if (qp_attr_mask & IB_QP_TIMEOUT) {
@@ -1551,43 +1566,46 @@ int bnxt_re_query_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 {
 	struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
 	struct bnxt_re_dev *rdev = qp->rdev;
-	struct bnxt_qplib_qp qplib_qp;
+	struct bnxt_qplib_qp *qplib_qp;
 	int rc;
 
-	memset(&qplib_qp, 0, sizeof(struct bnxt_qplib_qp));
-	qplib_qp.id = qp->qplib_qp.id;
-	qplib_qp.ah.host_sgid_index = qp->qplib_qp.ah.host_sgid_index;
+	qplib_qp = kzalloc(sizeof(*qplib_qp), GFP_KERNEL);
+	if (!qplib_qp)
+		return -ENOMEM;
+
+	qplib_qp->id = qp->qplib_qp.id;
+	qplib_qp->ah.host_sgid_index = qp->qplib_qp.ah.host_sgid_index;
 
-	rc = bnxt_qplib_query_qp(&rdev->qplib_res, &qplib_qp);
+	rc = bnxt_qplib_query_qp(&rdev->qplib_res, qplib_qp);
 	if (rc) {
 		dev_err(rdev_to_dev(rdev), "Failed to query HW QP");
-		return rc;
+		goto out;
 	}
-	qp_attr->qp_state = __to_ib_qp_state(qplib_qp.state);
-	qp_attr->en_sqd_async_notify = qplib_qp.en_sqd_async_notify ? 1 : 0;
-	qp_attr->qp_access_flags = __to_ib_access_flags(qplib_qp.access);
-	qp_attr->pkey_index = qplib_qp.pkey_index;
-	qp_attr->qkey = qplib_qp.qkey;
+	qp_attr->qp_state = __to_ib_qp_state(qplib_qp->state);
+	qp_attr->en_sqd_async_notify = qplib_qp->en_sqd_async_notify ? 1 : 0;
+	qp_attr->qp_access_flags = __to_ib_access_flags(qplib_qp->access);
+	qp_attr->pkey_index = qplib_qp->pkey_index;
+	qp_attr->qkey = qplib_qp->qkey;
 	qp_attr->ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE;
-	rdma_ah_set_grh(&qp_attr->ah_attr, NULL, qplib_qp.ah.flow_label,
-			qplib_qp.ah.host_sgid_index,
-			qplib_qp.ah.hop_limit,
-			qplib_qp.ah.traffic_class);
-	rdma_ah_set_dgid_raw(&qp_attr->ah_attr, qplib_qp.ah.dgid.data);
-	rdma_ah_set_sl(&qp_attr->ah_attr, qplib_qp.ah.sl);
-	ether_addr_copy(qp_attr->ah_attr.roce.dmac, qplib_qp.ah.dmac);
-	qp_attr->path_mtu = __to_ib_mtu(qplib_qp.path_mtu);
-	qp_attr->timeout = qplib_qp.timeout;
-	qp_attr->retry_cnt = qplib_qp.retry_cnt;
-	qp_attr->rnr_retry = qplib_qp.rnr_retry;
-	qp_attr->min_rnr_timer = qplib_qp.min_rnr_timer;
-	qp_attr->rq_psn = qplib_qp.rq.psn;
-	qp_attr->max_rd_atomic = qplib_qp.max_rd_atomic;
-	qp_attr->sq_psn = qplib_qp.sq.psn;
-	qp_attr->max_dest_rd_atomic = qplib_qp.max_dest_rd_atomic;
-	qp_init_attr->sq_sig_type = qplib_qp.sig_type ? IB_SIGNAL_ALL_WR :
-							IB_SIGNAL_REQ_WR;
-	qp_attr->dest_qp_num = qplib_qp.dest_qpn;
+	rdma_ah_set_grh(&qp_attr->ah_attr, NULL, qplib_qp->ah.flow_label,
+			qplib_qp->ah.host_sgid_index,
+			qplib_qp->ah.hop_limit,
+			qplib_qp->ah.traffic_class);
+	rdma_ah_set_dgid_raw(&qp_attr->ah_attr, qplib_qp->ah.dgid.data);
+	rdma_ah_set_sl(&qp_attr->ah_attr, qplib_qp->ah.sl);
+	ether_addr_copy(qp_attr->ah_attr.roce.dmac, qplib_qp->ah.dmac);
+	qp_attr->path_mtu = __to_ib_mtu(qplib_qp->path_mtu);
+	qp_attr->timeout = qplib_qp->timeout;
+	qp_attr->retry_cnt = qplib_qp->retry_cnt;
+	qp_attr->rnr_retry = qplib_qp->rnr_retry;
+	qp_attr->min_rnr_timer = qplib_qp->min_rnr_timer;
+	qp_attr->rq_psn = qplib_qp->rq.psn;
+	qp_attr->max_rd_atomic = qplib_qp->max_rd_atomic;
+	qp_attr->sq_psn = qplib_qp->sq.psn;
+	qp_attr->max_dest_rd_atomic = qplib_qp->max_dest_rd_atomic;
+	qp_init_attr->sq_sig_type = qplib_qp->sig_type ? IB_SIGNAL_ALL_WR :
+							 IB_SIGNAL_REQ_WR;
+	qp_attr->dest_qp_num = qplib_qp->dest_qpn;
 
 	qp_attr->cap.max_send_wr = qp->qplib_qp.sq.max_wqe;
 	qp_attr->cap.max_send_sge = qp->qplib_qp.sq.max_sge;
@@ -1596,7 +1614,9 @@ int bnxt_re_query_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 	qp_attr->cap.max_inline_data = qp->qplib_qp.max_inline_data;
 	qp_init_attr->cap = qp_attr->cap;
 
-	return 0;
+out:
+	kfree(qplib_qp);
+	return rc;
 }
 
 /* Routine for sending QP1 packets for RoCE V1 an V2
@@ -1908,6 +1928,7 @@ static int bnxt_re_build_atomic_wqe(struct ib_send_wr *wr,
 	switch (wr->opcode) {
 	case IB_WR_ATOMIC_CMP_AND_SWP:
 		wqe->type = BNXT_QPLIB_SWQE_TYPE_ATOMIC_CMP_AND_SWP;
+		wqe->atomic.cmp_data = atomic_wr(wr)->compare_add;
 		wqe->atomic.swap_data = atomic_wr(wr)->swap;
 		break;
 	case IB_WR_ATOMIC_FETCH_AND_ADD:
@@ -3062,7 +3083,7 @@ int bnxt_re_dereg_mr(struct ib_mr *ib_mr)
 		return rc;
 	}
 
-	if (mr->npages && mr->pages) {
+	if (mr->pages) {
 		rc = bnxt_qplib_free_fast_reg_page_list(&rdev->qplib_res,
 							&mr->qplib_frpl);
 		kfree(mr->pages);
diff --git a/drivers/infiniband/hw/bnxt_re/main.c b/drivers/infiniband/hw/bnxt_re/main.c
index 82d1cbc27aee..e7450ea92aa9 100644
--- a/drivers/infiniband/hw/bnxt_re/main.c
+++ b/drivers/infiniband/hw/bnxt_re/main.c
@@ -1161,6 +1161,8 @@ static int bnxt_re_ib_reg(struct bnxt_re_dev *rdev)
 		}
 	}
 	set_bit(BNXT_RE_FLAG_IBDEV_REGISTERED, &rdev->flags);
+	ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed,
+			 &rdev->active_width);
 	bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_PORT_ACTIVE);
 	bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1, IB_EVENT_GID_CHANGE);
 
@@ -1255,10 +1257,14 @@ static void bnxt_re_task(struct work_struct *work)
 		else if (netif_carrier_ok(rdev->netdev))
 			bnxt_re_dispatch_event(&rdev->ibdev, NULL, 1,
 					       IB_EVENT_PORT_ACTIVE);
+		ib_get_eth_speed(&rdev->ibdev, 1, &rdev->active_speed,
+				 &rdev->active_width);
 		break;
 	default:
 		break;
 	}
+	smp_mb__before_atomic();
+	clear_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags);
 	kfree(re_work);
 }
 
@@ -1317,6 +1323,11 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier,
 		break;
 
 	case NETDEV_UNREGISTER:
+		/* netdev notifier will call NETDEV_UNREGISTER again later since
+		 * we are still holding the reference to the netdev
+		 */
+		if (test_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags))
+			goto exit;
 		bnxt_re_ib_unreg(rdev, false);
 		bnxt_re_remove_one(rdev);
 		bnxt_re_dev_unreg(rdev);
@@ -1335,6 +1346,7 @@ static int bnxt_re_netdev_event(struct notifier_block *notifier,
 			re_work->vlan_dev = (real_dev == netdev ?
 					     NULL : netdev);
 			INIT_WORK(&re_work->work, bnxt_re_task);
+			set_bit(BNXT_RE_FLAG_TASK_IN_PROG, &rdev->flags);
 			queue_work(bnxt_re_wq, &re_work->work);
 		}
 	}
@@ -1375,6 +1387,22 @@ err_netdev:
 
 static void __exit bnxt_re_mod_exit(void)
 {
+	struct bnxt_re_dev *rdev;
+	LIST_HEAD(to_be_deleted);
+
+	mutex_lock(&bnxt_re_dev_lock);
+	/* Free all adapter allocated resources */
+	if (!list_empty(&bnxt_re_dev_list))
+		list_splice_init(&bnxt_re_dev_list, &to_be_deleted);
+	mutex_unlock(&bnxt_re_dev_lock);
+
+	list_for_each_entry(rdev, &to_be_deleted, list) {
+		dev_info(rdev_to_dev(rdev), "Unregistering Device");
+		bnxt_re_dev_stop(rdev);
+		bnxt_re_ib_unreg(rdev, true);
+		bnxt_re_remove_one(rdev);
+		bnxt_re_dev_unreg(rdev);
+	}
 	unregister_netdevice_notifier(&bnxt_re_netdev_notifier);
 	if (bnxt_re_wq)
 		destroy_workqueue(bnxt_re_wq);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
index 391bb7006e8f..2bdb1562bd21 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.c
@@ -107,6 +107,9 @@ static int __send_message(struct bnxt_qplib_rcfw *rcfw, struct cmdq_base *req,
 		return -EINVAL;
 	}
 
+	if (test_bit(FIRMWARE_TIMED_OUT, &rcfw->flags))
+		return -ETIMEDOUT;
+
 	/* Cmdq are in 16-byte units, each request can consume 1 or more
 	 * cmdqe
 	 */
@@ -226,6 +229,7 @@ int bnxt_qplib_rcfw_send_message(struct bnxt_qplib_rcfw *rcfw,
 		/* timed out */
 		dev_err(&rcfw->pdev->dev, "QPLIB: cmdq[%#x]=%#x timedout (%d)msec",
 			cookie, opcode, RCFW_CMD_WAIT_TIME_MS);
+		set_bit(FIRMWARE_TIMED_OUT, &rcfw->flags);
 		return rc;
 	}
 
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
index 0ed312f17c8d..85b16da287f9 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_rcfw.h
@@ -162,8 +162,9 @@ struct bnxt_qplib_rcfw {
 	unsigned long		*cmdq_bitmap;
 	u32			bmap_size;
 	unsigned long		flags;
-#define FIRMWARE_INITIALIZED_FLAG	1
+#define FIRMWARE_INITIALIZED_FLAG	BIT(0)
 #define FIRMWARE_FIRST_FLAG		BIT(31)
+#define FIRMWARE_TIMED_OUT		BIT(3)
 	wait_queue_head_t	waitq;
 	int			(*aeq_handler)(struct bnxt_qplib_rcfw *,
 					       struct creq_func_event *);
diff --git a/drivers/infiniband/hw/cxgb3/Makefile b/drivers/infiniband/hw/cxgb3/Makefile
index 2761364185af..2c66d35d19bd 100644
--- a/drivers/infiniband/hw/cxgb3/Makefile
+++ b/drivers/infiniband/hw/cxgb3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Idrivers/net/ethernet/chelsio/cxgb3
 
 obj-$(CONFIG_INFINIBAND_CXGB3) += iw_cxgb3.o
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c
index ceaa2fa54d32..daf7a56e5d7e 100644
--- a/drivers/infiniband/hw/cxgb4/cm.c
+++ b/drivers/infiniband/hw/cxgb4/cm.c
@@ -2333,9 +2333,14 @@ static int close_listsrv_rpl(struct c4iw_dev *dev, struct sk_buff *skb)
 	unsigned int stid = GET_TID(rpl);
 	struct c4iw_listen_ep *ep = get_ep_from_stid(dev, stid);
 
+	if (!ep) {
+		pr_debug("%s stid %d lookup failure!\n", __func__, stid);
+		goto out;
+	}
 	pr_debug("%s ep %p\n", __func__, ep);
 	c4iw_wake_up(&ep->com.wr_wait, status2errno(rpl->status));
 	c4iw_put_ep(&ep->com);
+out:
 	return 0;
 }
 
@@ -2594,9 +2599,9 @@ fail:
 	c4iw_put_ep(&child_ep->com);
 reject:
 	reject_cr(dev, hwtid, skb);
+out:
 	if (parent_ep)
 		c4iw_put_ep(&parent_ep->com);
-out:
 	return 0;
 }
 
@@ -3457,7 +3462,7 @@ int c4iw_create_listen(struct iw_cm_id *cm_id, int backlog)
 		cm_id->provider_data = ep;
 		goto out;
 	}
-
+	remove_handle(ep->com.dev, &ep->com.dev->stid_idr, ep->stid);
 	cxgb4_free_stid(ep->com.dev->rdev.lldi.tids, ep->stid,
 			ep->com.local_addr.ss_family);
 fail2:
diff --git a/drivers/infiniband/hw/hfi1/Makefile b/drivers/infiniband/hw/hfi1/Makefile
index 66d538c033b0..ce4010bad982 100644
--- a/drivers/infiniband/hw/hfi1/Makefile
+++ b/drivers/infiniband/hw/hfi1/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # HFI driver
 #
diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c
index b2ed4b9cda6e..0be42787759f 100644
--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -1066,6 +1066,8 @@ static int read_idle_sma(struct hfi1_devdata *dd, u64 *data);
 static int thermal_init(struct hfi1_devdata *dd);
 
 static void update_statusp(struct hfi1_pportdata *ppd, u32 state);
+static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd,
+					    int msecs);
 static int wait_logical_linkstate(struct hfi1_pportdata *ppd, u32 state,
 				  int msecs);
 static void log_state_transition(struct hfi1_pportdata *ppd, u32 state);
@@ -8238,6 +8240,7 @@ static irqreturn_t general_interrupt(int irq, void *data)
 	u64 regs[CCE_NUM_INT_CSRS];
 	u32 bit;
 	int i;
+	irqreturn_t handled = IRQ_NONE;
 
 	this_cpu_inc(*dd->int_counter);
 
@@ -8258,9 +8261,10 @@ static irqreturn_t general_interrupt(int irq, void *data)
 	for_each_set_bit(bit, (unsigned long *)&regs[0],
 			 CCE_NUM_INT_CSRS * 64) {
 		is_interrupt(dd, bit);
+		handled = IRQ_HANDLED;
 	}
 
-	return IRQ_HANDLED;
+	return handled;
 }
 
 static irqreturn_t sdma_interrupt(int irq, void *data)
@@ -9413,7 +9417,7 @@ static void set_qsfp_int_n(struct hfi1_pportdata *ppd, u8 enable)
 	write_csr(dd, dd->hfi1_id ? ASIC_QSFP2_MASK : ASIC_QSFP1_MASK, mask);
 }
 
-void reset_qsfp(struct hfi1_pportdata *ppd)
+int reset_qsfp(struct hfi1_pportdata *ppd)
 {
 	struct hfi1_devdata *dd = ppd->dd;
 	u64 mask, qsfp_mask;
@@ -9443,6 +9447,13 @@ void reset_qsfp(struct hfi1_pportdata *ppd)
 	 * for alarms and warnings
 	 */
 	set_qsfp_int_n(ppd, 1);
+
+	/*
+	 * After the reset, AOC transmitters are enabled by default. They need
+	 * to be turned off to complete the QSFP setup before they can be
+	 * enabled again.
+	 */
+	return set_qsfp_tx(ppd, 0);
 }
 
 static int handle_qsfp_error_conditions(struct hfi1_pportdata *ppd,
@@ -10305,6 +10316,7 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
 {
 	struct hfi1_devdata *dd = ppd->dd;
 	u32 previous_state;
+	int offline_state_ret;
 	int ret;
 
 	update_lcb_cache(dd);
@@ -10326,28 +10338,11 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
 		ppd->offline_disabled_reason =
 		HFI1_ODR_MASK(OPA_LINKDOWN_REASON_TRANSIENT);
 
-	/*
-	 * Wait for offline transition. It can take a while for
-	 * the link to go down.
-	 */
-	ret = wait_physical_linkstate(ppd, PLS_OFFLINE, 10000);
-	if (ret < 0)
-		return ret;
-
-	/*
-	 * Now in charge of LCB - must be after the physical state is
-	 * offline.quiet and before host_link_state is changed.
-	 */
-	set_host_lcb_access(dd);
-	write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */
-
-	/* make sure the logical state is also down */
-	ret = wait_logical_linkstate(ppd, IB_PORT_DOWN, 1000);
-	if (ret)
-		force_logical_link_state_down(ppd);
-
-	ppd->host_link_state = HLS_LINK_COOLDOWN; /* LCB access allowed */
+	offline_state_ret = wait_phys_link_offline_substates(ppd, 10000);
+	if (offline_state_ret < 0)
+		return offline_state_ret;
 
+	/* Disabling AOC transmitters */
 	if (ppd->port_type == PORT_TYPE_QSFP &&
 	    ppd->qsfp_info.limiting_active &&
 	    qsfp_mod_present(ppd)) {
@@ -10365,6 +10360,30 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
 	}
 
 	/*
+	 * Wait for the offline.Quiet transition if it hasn't happened yet. It
+	 * can take a while for the link to go down.
+	 */
+	if (offline_state_ret != PLS_OFFLINE_QUIET) {
+		ret = wait_physical_linkstate(ppd, PLS_OFFLINE, 30000);
+		if (ret < 0)
+			return ret;
+	}
+
+	/*
+	 * Now in charge of LCB - must be after the physical state is
+	 * offline.quiet and before host_link_state is changed.
+	 */
+	set_host_lcb_access(dd);
+	write_csr(dd, DC_LCB_ERR_EN, ~0ull); /* watch LCB errors */
+
+	/* make sure the logical state is also down */
+	ret = wait_logical_linkstate(ppd, IB_PORT_DOWN, 1000);
+	if (ret)
+		force_logical_link_state_down(ppd);
+
+	ppd->host_link_state = HLS_LINK_COOLDOWN; /* LCB access allowed */
+
+	/*
 	 * The LNI has a mandatory wait time after the physical state
 	 * moves to Offline.Quiet.  The wait time may be different
 	 * depending on how the link went down.  The 8051 firmware
@@ -10396,6 +10415,9 @@ static int goto_offline(struct hfi1_pportdata *ppd, u8 rem_reason)
 			& (HLS_DN_POLL | HLS_VERIFY_CAP | HLS_GOING_UP)) {
 		/* went down while attempting link up */
 		check_lni_states(ppd);
+
+		/* The QSFP doesn't need to be reset on LNI failure */
+		ppd->qsfp_info.reset_needed = 0;
 	}
 
 	/* the active link width (downgrade) is 0 on link down */
@@ -12804,6 +12826,39 @@ static int wait_physical_linkstate(struct hfi1_pportdata *ppd, u32 state,
 	return 0;
 }
 
+/*
+ * wait_phys_link_offline_quiet_substates - wait for any offline substate
+ * @ppd: port device
+ * @msecs: the number of milliseconds to wait
+ *
+ * Wait up to msecs milliseconds for any offline physical link
+ * state change to occur.
+ * Returns 0 if at least one state is reached, otherwise -ETIMEDOUT.
+ */
+static int wait_phys_link_offline_substates(struct hfi1_pportdata *ppd,
+					    int msecs)
+{
+	u32 read_state;
+	unsigned long timeout;
+
+	timeout = jiffies + msecs_to_jiffies(msecs);
+	while (1) {
+		read_state = read_physical_state(ppd->dd);
+		if ((read_state & 0xF0) == PLS_OFFLINE)
+			break;
+		if (time_after(jiffies, timeout)) {
+			dd_dev_err(ppd->dd,
+				   "timeout waiting for phy link offline.quiet substates. Read state 0x%x, %dms\n",
+				   read_state, msecs);
+			return -ETIMEDOUT;
+		}
+		usleep_range(1950, 2050); /* sleep 2ms-ish */
+	}
+
+	log_state_transition(ppd, read_state);
+	return read_state;
+}
+
 #define CLEAR_STATIC_RATE_CONTROL_SMASK(r) \
 (r &= ~SEND_CTXT_CHECK_ENABLE_DISALLOW_PBC_STATIC_RATE_CONTROL_SMASK)
 
diff --git a/drivers/infiniband/hw/hfi1/chip.h b/drivers/infiniband/hw/hfi1/chip.h
index b8345a60a0fb..50b8645d0b87 100644
--- a/drivers/infiniband/hw/hfi1/chip.h
+++ b/drivers/infiniband/hw/hfi1/chip.h
@@ -204,6 +204,7 @@
 #define PLS_OFFLINE_READY_TO_QUIET_LT	   0x92
 #define PLS_OFFLINE_REPORT_FAILURE		   0x93
 #define PLS_OFFLINE_READY_TO_QUIET_BCC	   0x94
+#define PLS_OFFLINE_QUIET_DURATION	   0x95
 #define PLS_POLLING				   0x20
 #define PLS_POLLING_QUIET			   0x20
 #define PLS_POLLING_ACTIVE			   0x21
@@ -722,7 +723,7 @@ void handle_link_downgrade(struct work_struct *work);
 void handle_link_bounce(struct work_struct *work);
 void handle_start_link(struct work_struct *work);
 void handle_sma_message(struct work_struct *work);
-void reset_qsfp(struct hfi1_pportdata *ppd);
+int reset_qsfp(struct hfi1_pportdata *ppd);
 void qsfp_event(struct work_struct *work);
 void start_freeze_handling(struct hfi1_pportdata *ppd, int flags);
 int send_idle_sma(struct hfi1_devdata *dd, u64 message);
diff --git a/drivers/infiniband/hw/hfi1/eprom.c b/drivers/infiniband/hw/hfi1/eprom.c
index d46b17107901..1613af1c58d9 100644
--- a/drivers/infiniband/hw/hfi1/eprom.c
+++ b/drivers/infiniband/hw/hfi1/eprom.c
@@ -204,7 +204,10 @@ done_asic:
 	return ret;
 }
 
-/* magic character sequence that trails an image */
+/* magic character sequence that begins an image */
+#define IMAGE_START_MAGIC "APO="
+
+/* magic character sequence that might trail an image */
 #define IMAGE_TRAIL_MAGIC "egamiAPO"
 
 /* EPROM file types */
@@ -250,6 +253,7 @@ static int read_partition_platform_config(struct hfi1_devdata *dd, void **data,
 {
 	void *buffer;
 	void *p;
+	u32 length;
 	int ret;
 
 	buffer = kmalloc(P1_SIZE, GFP_KERNEL);
@@ -262,15 +266,21 @@ static int read_partition_platform_config(struct hfi1_devdata *dd, void **data,
 		return ret;
 	}
 
-	/* scan for image magic that may trail the actual data */
-	p = strnstr(buffer, IMAGE_TRAIL_MAGIC, P1_SIZE);
-	if (!p) {
+	/* config partition is valid only if it starts with IMAGE_START_MAGIC */
+	if (memcmp(buffer, IMAGE_START_MAGIC, strlen(IMAGE_START_MAGIC))) {
 		kfree(buffer);
 		return -ENOENT;
 	}
 
+	/* scan for image magic that may trail the actual data */
+	p = strnstr(buffer, IMAGE_TRAIL_MAGIC, P1_SIZE);
+	if (p)
+		length = p - buffer;
+	else
+		length = P1_SIZE;
+
 	*data = buffer;
-	*size = p - buffer;
+	*size = length;
 	return 0;
 }
 
diff --git a/drivers/infiniband/hw/hfi1/file_ops.c b/drivers/infiniband/hw/hfi1/file_ops.c
index 2bc89260235a..97bea2e1aa6a 100644
--- a/drivers/infiniband/hw/hfi1/file_ops.c
+++ b/drivers/infiniband/hw/hfi1/file_ops.c
@@ -380,7 +380,7 @@ static long hfi1_file_ioctl(struct file *fp, unsigned int cmd,
 		if (sc->flags & SCF_FROZEN) {
 			wait_event_interruptible_timeout(
 				dd->event_queue,
-				!(ACCESS_ONCE(dd->flags) & HFI1_FROZEN),
+				!(READ_ONCE(dd->flags) & HFI1_FROZEN),
 				msecs_to_jiffies(SEND_CTXT_HALT_TIMEOUT));
 			if (dd->flags & HFI1_FROZEN)
 				return -ENOLCK;
@@ -930,15 +930,8 @@ static int assign_ctxt(struct hfi1_filedata *fd, struct hfi1_user_info *uinfo)
 	switch (ret) {
 	case 0:
 		ret = setup_base_ctxt(fd, uctxt);
-		if (uctxt->subctxt_cnt) {
-			/*
-			 * Base context is done (successfully or not), notify
-			 * anybody using a sub-context that is waiting for
-			 * this completion.
-			 */
-			clear_bit(HFI1_CTXT_BASE_UNINIT, &uctxt->event_flags);
-			wake_up(&uctxt->wait);
-		}
+		if (ret)
+			deallocate_ctxt(uctxt);
 		break;
 	case 1:
 		ret = complete_subctxt(fd);
@@ -1305,25 +1298,25 @@ static int setup_base_ctxt(struct hfi1_filedata *fd,
 	/* Now allocate the RcvHdr queue and eager buffers. */
 	ret = hfi1_create_rcvhdrq(dd, uctxt);
 	if (ret)
-		return ret;
+		goto done;
 
 	ret = hfi1_setup_eagerbufs(uctxt);
 	if (ret)
-		goto setup_failed;
+		goto done;
 
 	/* If sub-contexts are enabled, do the appropriate setup */
 	if (uctxt->subctxt_cnt)
 		ret = setup_subctxt(uctxt);
 	if (ret)
-		goto setup_failed;
+		goto done;
 
 	ret = hfi1_alloc_ctxt_rcv_groups(uctxt);
 	if (ret)
-		goto setup_failed;
+		goto done;
 
 	ret = init_user_ctxt(fd, uctxt);
 	if (ret)
-		goto setup_failed;
+		goto done;
 
 	user_init(uctxt);
 
@@ -1331,12 +1324,22 @@ static int setup_base_ctxt(struct hfi1_filedata *fd,
 	fd->uctxt = uctxt;
 	hfi1_rcd_get(uctxt);
 
-	return 0;
+done:
+	if (uctxt->subctxt_cnt) {
+		/*
+		 * On error, set the failed bit so sub-contexts will clean up
+		 * correctly.
+		 */
+		if (ret)
+			set_bit(HFI1_CTXT_BASE_FAILED, &uctxt->event_flags);
 
-setup_failed:
-	/* Set the failed bit so sub-context init can do the right thing */
-	set_bit(HFI1_CTXT_BASE_FAILED, &uctxt->event_flags);
-	deallocate_ctxt(uctxt);
+		/*
+		 * Base context is done (successfully or not), notify anybody
+		 * using a sub-context that is waiting for this completion.
+		 */
+		clear_bit(HFI1_CTXT_BASE_UNINIT, &uctxt->event_flags);
+		wake_up(&uctxt->wait);
+	}
 
 	return ret;
 }
diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c
index 82447b7cdda1..09e50fd2a08f 100644
--- a/drivers/infiniband/hw/hfi1/pcie.c
+++ b/drivers/infiniband/hw/hfi1/pcie.c
@@ -68,7 +68,7 @@
 /*
  * Code to adjust PCIe capabilities.
  */
-static int tune_pcie_caps(struct hfi1_devdata *);
+static void tune_pcie_caps(struct hfi1_devdata *);
 
 /*
  * Do all the common PCIe setup and initialization.
@@ -351,7 +351,7 @@ int pcie_speeds(struct hfi1_devdata *dd)
  */
 int request_msix(struct hfi1_devdata *dd, u32 msireq)
 {
-	int nvec, ret;
+	int nvec;
 
 	nvec = pci_alloc_irq_vectors(dd->pcidev, 1, msireq,
 				     PCI_IRQ_MSIX | PCI_IRQ_LEGACY);
@@ -360,12 +360,7 @@ int request_msix(struct hfi1_devdata *dd, u32 msireq)
 		return nvec;
 	}
 
-	ret = tune_pcie_caps(dd);
-	if (ret) {
-		dd_dev_err(dd, "tune_pcie_caps() failed: %d\n", ret);
-		pci_free_irq_vectors(dd->pcidev);
-		return ret;
-	}
+	tune_pcie_caps(dd);
 
 	/* check for legacy IRQ */
 	if (nvec == 1 && !dd->pcidev->msix_enabled)
@@ -502,7 +497,7 @@ uint aspm_mode = ASPM_MODE_DISABLED;
 module_param_named(aspm, aspm_mode, uint, S_IRUGO);
 MODULE_PARM_DESC(aspm, "PCIe ASPM: 0: disable, 1: enable, 2: dynamic");
 
-static int tune_pcie_caps(struct hfi1_devdata *dd)
+static void tune_pcie_caps(struct hfi1_devdata *dd)
 {
 	struct pci_dev *parent;
 	u16 rc_mpss, rc_mps, ep_mpss, ep_mps;
@@ -513,22 +508,14 @@ static int tune_pcie_caps(struct hfi1_devdata *dd)
 	 * Turn on extended tags in DevCtl in case the BIOS has turned it off
 	 * to improve WFR SDMA bandwidth
 	 */
-	ret = pcie_capability_read_word(dd->pcidev,
-					PCI_EXP_DEVCTL, &ectl);
-	if (ret) {
-		dd_dev_err(dd, "Unable to read from PCI config\n");
-		return ret;
-	}
-
-	if (!(ectl & PCI_EXP_DEVCTL_EXT_TAG)) {
+	ret = pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCTL, &ectl);
+	if ((!ret) && !(ectl & PCI_EXP_DEVCTL_EXT_TAG)) {
 		dd_dev_info(dd, "Enabling PCIe extended tags\n");
 		ectl |= PCI_EXP_DEVCTL_EXT_TAG;
 		ret = pcie_capability_write_word(dd->pcidev,
 						 PCI_EXP_DEVCTL, ectl);
-		if (ret) {
-			dd_dev_err(dd, "Unable to write to PCI config\n");
-			return ret;
-		}
+		if (ret)
+			dd_dev_info(dd, "Unable to write to PCI config\n");
 	}
 	/* Find out supported and configured values for parent (root) */
 	parent = dd->pcidev->bus->self;
@@ -536,15 +523,22 @@ static int tune_pcie_caps(struct hfi1_devdata *dd)
 	 * The driver cannot perform the tuning if it does not have
 	 * access to the upstream component.
 	 */
-	if (!parent)
-		return -EINVAL;
+	if (!parent) {
+		dd_dev_info(dd, "Parent not found\n");
+		return;
+	}
 	if (!pci_is_root_bus(parent->bus)) {
 		dd_dev_info(dd, "Parent not root\n");
-		return -EINVAL;
+		return;
+	}
+	if (!pci_is_pcie(parent)) {
+		dd_dev_info(dd, "Parent is not PCI Express capable\n");
+		return;
+	}
+	if (!pci_is_pcie(dd->pcidev)) {
+		dd_dev_info(dd, "PCI device is not PCI Express capable\n");
+		return;
 	}
-
-	if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev))
-		return -EINVAL;
 	rc_mpss = parent->pcie_mpss;
 	rc_mps = ffs(pcie_get_mps(parent)) - 8;
 	/* Find out supported and configured values for endpoint (us) */
@@ -590,8 +584,6 @@ static int tune_pcie_caps(struct hfi1_devdata *dd)
 		ep_mrrs = max_mrrs;
 		pcie_set_readrq(dd->pcidev, ep_mrrs);
 	}
-
-	return 0;
 }
 
 /* End of PCIe capability tuning */
diff --git a/drivers/infiniband/hw/hfi1/pio.c b/drivers/infiniband/hw/hfi1/pio.c
index 7108a4b5e94c..75e740780285 100644
--- a/drivers/infiniband/hw/hfi1/pio.c
+++ b/drivers/infiniband/hw/hfi1/pio.c
@@ -1423,14 +1423,14 @@ retry:
 			goto done;
 		}
 		/* copy from receiver cache line and recalculate */
-		sc->alloc_free = ACCESS_ONCE(sc->free);
+		sc->alloc_free = READ_ONCE(sc->free);
 		avail =
 			(unsigned long)sc->credits -
 			(sc->fill - sc->alloc_free);
 		if (blocks > avail) {
 			/* still no room, actively update */
 			sc_release_update(sc);
-			sc->alloc_free = ACCESS_ONCE(sc->free);
+			sc->alloc_free = READ_ONCE(sc->free);
 			trycount++;
 			goto retry;
 		}
@@ -1667,7 +1667,7 @@ void sc_release_update(struct send_context *sc)
 
 	/* call sent buffer callbacks */
 	code = -1;				/* code not yet set */
-	head = ACCESS_ONCE(sc->sr_head);	/* snapshot the head */
+	head = READ_ONCE(sc->sr_head);	/* snapshot the head */
 	tail = sc->sr_tail;
 	while (head != tail) {
 		pbuf = &sc->sr[tail].pbuf;
diff --git a/drivers/infiniband/hw/hfi1/platform.c b/drivers/infiniband/hw/hfi1/platform.c
index a8af96d2b1b0..d486355880cb 100644
--- a/drivers/infiniband/hw/hfi1/platform.c
+++ b/drivers/infiniband/hw/hfi1/platform.c
@@ -790,7 +790,9 @@ static int tune_active_qsfp(struct hfi1_pportdata *ppd, u32 *ptr_tx_preset,
 	 * reuse of stale settings established in our previous pass through.
 	 */
 	if (ppd->qsfp_info.reset_needed) {
-		reset_qsfp(ppd);
+		ret = reset_qsfp(ppd);
+		if (ret)
+			return ret;
 		refresh_qsfp_cache(ppd, &ppd->qsfp_info);
 	} else {
 		ppd->qsfp_info.reset_needed = 1;
diff --git a/drivers/infiniband/hw/hfi1/ruc.c b/drivers/infiniband/hw/hfi1/ruc.c
index b3291f0fde9a..a7fc664f0d4e 100644
--- a/drivers/infiniband/hw/hfi1/ruc.c
+++ b/drivers/infiniband/hw/hfi1/ruc.c
@@ -363,7 +363,7 @@ static void ruc_loopback(struct rvt_qp *sqp)
 
 again:
 	smp_read_barrier_depends(); /* see post_one_send() */
-	if (sqp->s_last == ACCESS_ONCE(sqp->s_head))
+	if (sqp->s_last == READ_ONCE(sqp->s_head))
 		goto clr_busy;
 	wqe = rvt_get_swqe_ptr(sqp, sqp->s_last);
 
diff --git a/drivers/infiniband/hw/hfi1/sdma.c b/drivers/infiniband/hw/hfi1/sdma.c
index 6781bcdb10b3..08346d25441c 100644
--- a/drivers/infiniband/hw/hfi1/sdma.c
+++ b/drivers/infiniband/hw/hfi1/sdma.c
@@ -1725,7 +1725,7 @@ retry:
 
 		swhead = sde->descq_head & sde->sdma_mask;
 		/* this code is really bad for cache line trading */
-		swtail = ACCESS_ONCE(sde->descq_tail) & sde->sdma_mask;
+		swtail = READ_ONCE(sde->descq_tail) & sde->sdma_mask;
 		cnt = sde->descq_cnt;
 
 		if (swhead < swtail)
@@ -1872,7 +1872,7 @@ retry:
 	if ((status & sde->idle_mask) && !idle_check_done) {
 		u16 swtail;
 
-		swtail = ACCESS_ONCE(sde->descq_tail) & sde->sdma_mask;
+		swtail = READ_ONCE(sde->descq_tail) & sde->sdma_mask;
 		if (swtail != hwhead) {
 			hwhead = (u16)read_sde_csr(sde, SD(HEAD));
 			idle_check_done = 1;
@@ -2222,7 +2222,7 @@ void sdma_seqfile_dump_sde(struct seq_file *s, struct sdma_engine *sde)
 	u16 len;
 
 	head = sde->descq_head & sde->sdma_mask;
-	tail = ACCESS_ONCE(sde->descq_tail) & sde->sdma_mask;
+	tail = READ_ONCE(sde->descq_tail) & sde->sdma_mask;
 	seq_printf(s, SDE_FMT, sde->this_idx,
 		   sde->cpu,
 		   sdma_state_name(sde->state.current_state),
@@ -3305,7 +3305,7 @@ int sdma_ahg_alloc(struct sdma_engine *sde)
 		return -EINVAL;
 	}
 	while (1) {
-		nr = ffz(ACCESS_ONCE(sde->ahg_bits));
+		nr = ffz(READ_ONCE(sde->ahg_bits));
 		if (nr > 31) {
 			trace_hfi1_ahg_allocate(sde, -ENOSPC);
 			return -ENOSPC;
diff --git a/drivers/infiniband/hw/hfi1/sdma.h b/drivers/infiniband/hw/hfi1/sdma.h
index 107011d8613b..374c59784950 100644
--- a/drivers/infiniband/hw/hfi1/sdma.h
+++ b/drivers/infiniband/hw/hfi1/sdma.h
@@ -445,7 +445,7 @@ static inline u16 sdma_descq_freecnt(struct sdma_engine *sde)
 {
 	return sde->descq_cnt -
 		(sde->descq_tail -
-		 ACCESS_ONCE(sde->descq_head)) - 1;
+		 READ_ONCE(sde->descq_head)) - 1;
 }
 
 static inline u16 sdma_descq_inprocess(struct sdma_engine *sde)
diff --git a/drivers/infiniband/hw/hfi1/uc.c b/drivers/infiniband/hw/hfi1/uc.c
index 0b646173ca22..9a31c585427f 100644
--- a/drivers/infiniband/hw/hfi1/uc.c
+++ b/drivers/infiniband/hw/hfi1/uc.c
@@ -80,7 +80,7 @@ int hfi1_make_uc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 			goto bail;
 		/* We are in the error state, flush the work request. */
 		smp_read_barrier_depends(); /* see post_one_send() */
-		if (qp->s_last == ACCESS_ONCE(qp->s_head))
+		if (qp->s_last == READ_ONCE(qp->s_head))
 			goto bail;
 		/* If DMAs are in progress, we can't flush immediately. */
 		if (iowait_sdma_pending(&priv->s_iowait)) {
@@ -121,7 +121,7 @@ int hfi1_make_uc_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 			goto bail;
 		/* Check if send work queue is empty. */
 		smp_read_barrier_depends(); /* see post_one_send() */
-		if (qp->s_cur == ACCESS_ONCE(qp->s_head)) {
+		if (qp->s_cur == READ_ONCE(qp->s_head)) {
 			clear_ahg(qp);
 			goto bail;
 		}
diff --git a/drivers/infiniband/hw/hfi1/ud.c b/drivers/infiniband/hw/hfi1/ud.c
index 2ba74fdd6f15..7fec6b984e3e 100644
--- a/drivers/infiniband/hw/hfi1/ud.c
+++ b/drivers/infiniband/hw/hfi1/ud.c
@@ -487,7 +487,7 @@ int hfi1_make_ud_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 			goto bail;
 		/* We are in the error state, flush the work request. */
 		smp_read_barrier_depends(); /* see post_one_send */
-		if (qp->s_last == ACCESS_ONCE(qp->s_head))
+		if (qp->s_last == READ_ONCE(qp->s_head))
 			goto bail;
 		/* If DMAs are in progress, we can't flush immediately. */
 		if (iowait_sdma_pending(&priv->s_iowait)) {
@@ -501,7 +501,7 @@ int hfi1_make_ud_req(struct rvt_qp *qp, struct hfi1_pkt_state *ps)
 
 	/* see post_one_send() */
 	smp_read_barrier_depends();
-	if (qp->s_cur == ACCESS_ONCE(qp->s_head))
+	if (qp->s_cur == READ_ONCE(qp->s_head))
 		goto bail;
 
 	wqe = rvt_get_swqe_ptr(qp, qp->s_cur);
diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c
index c0c0e0445cbf..8ec6e8a8d6f7 100644
--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -276,7 +276,7 @@ int hfi1_user_sdma_free_queues(struct hfi1_filedata *fd,
 		/* Wait until all requests have been freed. */
 		wait_event_interruptible(
 			pq->wait,
-			(ACCESS_ONCE(pq->state) == SDMA_PKT_Q_INACTIVE));
+			(READ_ONCE(pq->state) == SDMA_PKT_Q_INACTIVE));
 		kfree(pq->reqs);
 		kfree(pq->req_in_use);
 		kmem_cache_destroy(pq->txreq_cache);
@@ -591,7 +591,7 @@ int hfi1_user_sdma_process_request(struct hfi1_filedata *fd,
 			if (ret != -EBUSY) {
 				req->status = ret;
 				WRITE_ONCE(req->has_error, 1);
-				if (ACCESS_ONCE(req->seqcomp) ==
+				if (READ_ONCE(req->seqcomp) ==
 				    req->seqsubmitted - 1)
 					goto free_req;
 				return ret;
@@ -825,7 +825,7 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
 		 */
 		if (req->data_len) {
 			iovec = &req->iovs[req->iov_idx];
-			if (ACCESS_ONCE(iovec->offset) == iovec->iov.iov_len) {
+			if (READ_ONCE(iovec->offset) == iovec->iov.iov_len) {
 				if (++req->iov_idx == req->data_iovs) {
 					ret = -EFAULT;
 					goto free_txreq;
@@ -1390,7 +1390,7 @@ static void user_sdma_txreq_cb(struct sdma_txreq *txreq, int status)
 	} else {
 		if (status != SDMA_TXREQ_S_OK)
 			req->status = status;
-		if (req->seqcomp == (ACCESS_ONCE(req->seqsubmitted) - 1) &&
+		if (req->seqcomp == (READ_ONCE(req->seqsubmitted) - 1) &&
 		    (READ_ONCE(req->done) ||
 		     READ_ONCE(req->has_error))) {
 			user_sdma_free_request(req, false);
diff --git a/drivers/infiniband/hw/i40iw/Makefile b/drivers/infiniband/hw/i40iw/Makefile
index 90068c03d217..5a8a7a3f28ae 100644
--- a/drivers/infiniband/hw/i40iw/Makefile
+++ b/drivers/infiniband/hw/i40iw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y :=  -Idrivers/net/ethernet/intel/i40e
 
 obj-$(CONFIG_INFINIBAND_I40IW) += i40iw.o
diff --git a/drivers/infiniband/hw/i40iw/i40iw.h b/drivers/infiniband/hw/i40iw/i40iw.h
index 9b1566468744..a65e4cbdce2f 100644
--- a/drivers/infiniband/hw/i40iw/i40iw.h
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -201,7 +201,6 @@ enum init_completion_state {
 	CEQ_CREATED,
 	ILQ_CREATED,
 	IEQ_CREATED,
-	INET_NOTIFIER,
 	IP_ADDR_REGISTERED,
 	RDMA_DEV_REGISTERED
 };
diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c b/drivers/infiniband/hw/i40iw/i40iw_cm.c
index 14f36ba4e5be..5230dd3c938c 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_cm.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
@@ -1504,23 +1504,40 @@ static void i40iw_add_hte_node(struct i40iw_cm_core *cm_core,
 }
 
 /**
- * listen_port_in_use - determine if port is in use
- * @port: Listen port number
+ * i40iw_port_in_use - determine if port is in use
+ * @port: port number
+ * @active_side: flag for listener side vs active side
  */
-static bool i40iw_listen_port_in_use(struct i40iw_cm_core *cm_core, u16 port)
+static bool i40iw_port_in_use(struct i40iw_cm_core *cm_core, u16 port, bool active_side)
 {
 	struct i40iw_cm_listener *listen_node;
+	struct i40iw_cm_node *cm_node;
 	unsigned long flags;
 	bool ret = false;
 
-	spin_lock_irqsave(&cm_core->listen_list_lock, flags);
-	list_for_each_entry(listen_node, &cm_core->listen_nodes, list) {
-		if (listen_node->loc_port == port) {
-			ret = true;
-			break;
+	if (active_side) {
+		/* search connected node list */
+		spin_lock_irqsave(&cm_core->ht_lock, flags);
+		list_for_each_entry(cm_node, &cm_core->connected_nodes, list) {
+			if (cm_node->loc_port == port) {
+				ret = true;
+				break;
+			}
+		}
+			if (!ret)
+				clear_bit(port, cm_core->active_side_ports);
+		spin_unlock_irqrestore(&cm_core->ht_lock, flags);
+	} else {
+		spin_lock_irqsave(&cm_core->listen_list_lock, flags);
+		list_for_each_entry(listen_node, &cm_core->listen_nodes, list) {
+			if (listen_node->loc_port == port) {
+				ret = true;
+				break;
+			}
 		}
+		spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
 	}
-	spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+
 	return ret;
 }
 
@@ -1868,7 +1885,7 @@ static int i40iw_dec_refcnt_listen(struct i40iw_cm_core *cm_core,
 		spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
 
 		if (listener->iwdev) {
-			if (apbvt_del && !i40iw_listen_port_in_use(cm_core, listener->loc_port))
+			if (apbvt_del && !i40iw_port_in_use(cm_core, listener->loc_port, false))
 				i40iw_manage_apbvt(listener->iwdev,
 						   listener->loc_port,
 						   I40IW_MANAGE_APBVT_DEL);
@@ -2247,21 +2264,21 @@ static void i40iw_rem_ref_cm_node(struct i40iw_cm_node *cm_node)
 	if (cm_node->listener) {
 		i40iw_dec_refcnt_listen(cm_core, cm_node->listener, 0, true);
 	} else {
-		if (!i40iw_listen_port_in_use(cm_core, cm_node->loc_port) &&
-		    cm_node->apbvt_set) {
+		if (!i40iw_port_in_use(cm_core, cm_node->loc_port, true) && cm_node->apbvt_set) {
 			i40iw_manage_apbvt(cm_node->iwdev,
 					   cm_node->loc_port,
 					   I40IW_MANAGE_APBVT_DEL);
-			i40iw_get_addr_info(cm_node, &nfo);
-			if (cm_node->qhash_set) {
-				i40iw_manage_qhash(cm_node->iwdev,
-						   &nfo,
-						   I40IW_QHASH_TYPE_TCP_ESTABLISHED,
-						   I40IW_QHASH_MANAGE_TYPE_DELETE,
-						   NULL,
-						   false);
-				cm_node->qhash_set = 0;
-			}
+			cm_node->apbvt_set = 0;
+		}
+		i40iw_get_addr_info(cm_node, &nfo);
+		if (cm_node->qhash_set) {
+			i40iw_manage_qhash(cm_node->iwdev,
+					   &nfo,
+					   I40IW_QHASH_TYPE_TCP_ESTABLISHED,
+					   I40IW_QHASH_MANAGE_TYPE_DELETE,
+					   NULL,
+					   false);
+			cm_node->qhash_set = 0;
 		}
 	}
 
@@ -3255,7 +3272,8 @@ static void i40iw_init_tcp_ctx(struct i40iw_cm_node *cm_node,
 	tcp_info->snd_mss = cpu_to_le32(((u32)cm_node->tcp_cntxt.mss));
 	if (cm_node->vlan_id < VLAN_TAG_PRESENT) {
 		tcp_info->insert_vlan_tag = true;
-		tcp_info->vlan_tag = cpu_to_le16(cm_node->vlan_id);
+		tcp_info->vlan_tag = cpu_to_le16(((u16)cm_node->user_pri << I40IW_VLAN_PRIO_SHIFT) |
+						  cm_node->vlan_id);
 	}
 	if (cm_node->ipv4) {
 		tcp_info->src_port = cpu_to_le16(cm_node->loc_port);
@@ -3737,10 +3755,8 @@ int i40iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 	struct sockaddr_in *raddr;
 	struct sockaddr_in6 *laddr6;
 	struct sockaddr_in6 *raddr6;
-	bool qhash_set = false;
-	int apbvt_set = 0;
-	int err = 0;
-	enum i40iw_status_code status;
+	int ret = 0;
+	unsigned long flags;
 
 	ibqp = i40iw_get_qp(cm_id->device, conn_param->qpn);
 	if (!ibqp)
@@ -3789,32 +3805,6 @@ int i40iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 	cm_info.user_pri = rt_tos2priority(cm_id->tos);
 	i40iw_debug(&iwdev->sc_dev, I40IW_DEBUG_DCB, "%s TOS:[%d] UP:[%d]\n",
 		    __func__, cm_id->tos, cm_info.user_pri);
-	if ((cm_info.ipv4 && (laddr->sin_addr.s_addr != raddr->sin_addr.s_addr)) ||
-	    (!cm_info.ipv4 && memcmp(laddr6->sin6_addr.in6_u.u6_addr32,
-				     raddr6->sin6_addr.in6_u.u6_addr32,
-				     sizeof(laddr6->sin6_addr.in6_u.u6_addr32)))) {
-		status = i40iw_manage_qhash(iwdev,
-					    &cm_info,
-					    I40IW_QHASH_TYPE_TCP_ESTABLISHED,
-					    I40IW_QHASH_MANAGE_TYPE_ADD,
-					    NULL,
-					    true);
-		if (status)
-			return -EINVAL;
-		qhash_set = true;
-	}
-	status = i40iw_manage_apbvt(iwdev, cm_info.loc_port, I40IW_MANAGE_APBVT_ADD);
-	if (status) {
-		i40iw_manage_qhash(iwdev,
-				   &cm_info,
-				   I40IW_QHASH_TYPE_TCP_ESTABLISHED,
-				   I40IW_QHASH_MANAGE_TYPE_DELETE,
-				   NULL,
-				   false);
-		return -EINVAL;
-	}
-
-	apbvt_set = 1;
 	cm_id->add_ref(cm_id);
 	cm_node = i40iw_create_cm_node(&iwdev->cm_core, iwdev,
 				       conn_param->private_data_len,
@@ -3822,17 +3812,40 @@ int i40iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 				       &cm_info);
 
 	if (IS_ERR(cm_node)) {
-		err = PTR_ERR(cm_node);
-		goto err_out;
+		ret = PTR_ERR(cm_node);
+		cm_id->rem_ref(cm_id);
+		return ret;
+	}
+
+	if ((cm_info.ipv4 && (laddr->sin_addr.s_addr != raddr->sin_addr.s_addr)) ||
+	    (!cm_info.ipv4 && memcmp(laddr6->sin6_addr.in6_u.u6_addr32,
+				     raddr6->sin6_addr.in6_u.u6_addr32,
+				     sizeof(laddr6->sin6_addr.in6_u.u6_addr32)))) {
+		if (i40iw_manage_qhash(iwdev, &cm_info, I40IW_QHASH_TYPE_TCP_ESTABLISHED,
+				       I40IW_QHASH_MANAGE_TYPE_ADD, NULL, true)) {
+			ret = -EINVAL;
+			goto err;
+		}
+		cm_node->qhash_set = true;
 	}
 
+	spin_lock_irqsave(&iwdev->cm_core.ht_lock, flags);
+	if (!test_and_set_bit(cm_info.loc_port, iwdev->cm_core.active_side_ports)) {
+		spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags);
+		if (i40iw_manage_apbvt(iwdev, cm_info.loc_port, I40IW_MANAGE_APBVT_ADD)) {
+			ret =  -EINVAL;
+			goto err;
+		}
+	} else {
+		spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags);
+	}
+
+	cm_node->apbvt_set = true;
 	i40iw_record_ird_ord(cm_node, (u16)conn_param->ird, (u16)conn_param->ord);
 	if (cm_node->send_rdma0_op == SEND_RDMA_READ_ZERO &&
 	    !cm_node->ord_size)
 		cm_node->ord_size = 1;
 
-	cm_node->apbvt_set = apbvt_set;
-	cm_node->qhash_set = qhash_set;
 	iwqp->cm_node = cm_node;
 	cm_node->iwqp = iwqp;
 	iwqp->cm_id = cm_id;
@@ -3840,11 +3853,9 @@ int i40iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 
 	if (cm_node->state != I40IW_CM_STATE_OFFLOADED) {
 		cm_node->state = I40IW_CM_STATE_SYN_SENT;
-		err = i40iw_send_syn(cm_node, 0);
-		if (err) {
-			i40iw_rem_ref_cm_node(cm_node);
-			goto err_out;
-		}
+		ret = i40iw_send_syn(cm_node, 0);
+		if (ret)
+			goto err;
 	}
 
 	i40iw_debug(cm_node->dev,
@@ -3853,9 +3864,10 @@ int i40iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
 		    cm_node->rem_port,
 		    cm_node,
 		    cm_node->cm_id);
+
 	return 0;
 
-err_out:
+err:
 	if (cm_info.ipv4)
 		i40iw_debug(&iwdev->sc_dev,
 			    I40IW_DEBUG_CM,
@@ -3867,22 +3879,10 @@ err_out:
 			    "Api - connect() FAILED: dest addr=%pI6",
 			    cm_info.rem_addr);
 
-	if (qhash_set)
-		i40iw_manage_qhash(iwdev,
-				   &cm_info,
-				   I40IW_QHASH_TYPE_TCP_ESTABLISHED,
-				   I40IW_QHASH_MANAGE_TYPE_DELETE,
-				   NULL,
-				   false);
-
-	if (apbvt_set && !i40iw_listen_port_in_use(&iwdev->cm_core,
-						   cm_info.loc_port))
-		i40iw_manage_apbvt(iwdev,
-				   cm_info.loc_port,
-				   I40IW_MANAGE_APBVT_DEL);
+	i40iw_rem_ref_cm_node(cm_node);
 	cm_id->rem_ref(cm_id);
 	iwdev->cm_core.stats_connect_errs++;
-	return err;
+	return ret;
 }
 
 /**
diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.h b/drivers/infiniband/hw/i40iw/i40iw_cm.h
index 2e52e38ffcf3..45abef76295b 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_cm.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.h
@@ -71,6 +71,9 @@
 #define	I40IW_HW_IRD_SETTING_32	32
 #define	I40IW_HW_IRD_SETTING_64	64
 
+#define MAX_PORTS		65536
+#define I40IW_VLAN_PRIO_SHIFT   13
+
 enum ietf_mpa_flags {
 	IETF_MPA_FLAGS_MARKERS = 0x80,	/* receive Markers */
 	IETF_MPA_FLAGS_CRC = 0x40,	/* receive Markers */
@@ -411,6 +414,8 @@ struct i40iw_cm_core {
 	spinlock_t ht_lock; /* manage hash table */
 	spinlock_t listen_list_lock; /* listen list */
 
+	unsigned long active_side_ports[BITS_TO_LONGS(MAX_PORTS)];
+
 	u64	stats_nodes_created;
 	u64	stats_nodes_destroyed;
 	u64	stats_listen_created;
diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
index d1f5345f04f0..42ca5346777d 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -48,7 +48,7 @@
  * @wqe: cqp wqe for header
  * @header: header for the cqp wqe
  */
-static inline void i40iw_insert_wqe_hdr(u64 *wqe, u64 header)
+void i40iw_insert_wqe_hdr(u64 *wqe, u64 header)
 {
 	wmb();            /* make sure WQE is populated before polarity is set */
 	set_64bit_val(wqe, 24, header);
diff --git a/drivers/infiniband/hw/i40iw/i40iw_main.c b/drivers/infiniband/hw/i40iw/i40iw_main.c
index cc742c3132c6..27590ae21881 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_main.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_main.c
@@ -99,8 +99,6 @@ static struct notifier_block i40iw_net_notifier = {
 	.notifier_call = i40iw_net_event
 };
 
-static atomic_t i40iw_notifiers_registered;
-
 /**
  * i40iw_find_i40e_handler - find a handler given a client info
  * @ldev: pointer to a client info
@@ -1376,11 +1374,20 @@ error:
  */
 static void i40iw_register_notifiers(void)
 {
-	if (atomic_inc_return(&i40iw_notifiers_registered) == 1) {
-		register_inetaddr_notifier(&i40iw_inetaddr_notifier);
-		register_inet6addr_notifier(&i40iw_inetaddr6_notifier);
-		register_netevent_notifier(&i40iw_net_notifier);
-	}
+	register_inetaddr_notifier(&i40iw_inetaddr_notifier);
+	register_inet6addr_notifier(&i40iw_inetaddr6_notifier);
+	register_netevent_notifier(&i40iw_net_notifier);
+}
+
+/**
+ * i40iw_unregister_notifiers - unregister tcp ip notifiers
+ */
+
+static void i40iw_unregister_notifiers(void)
+{
+	unregister_netevent_notifier(&i40iw_net_notifier);
+	unregister_inetaddr_notifier(&i40iw_inetaddr_notifier);
+	unregister_inet6addr_notifier(&i40iw_inetaddr6_notifier);
 }
 
 /**
@@ -1400,6 +1407,11 @@ static enum i40iw_status_code i40iw_save_msix_info(struct i40iw_device *iwdev,
 	u32 i;
 	u32 size;
 
+	if (!ldev->msix_count) {
+		i40iw_pr_err("No MSI-X vectors\n");
+		return I40IW_ERR_CONFIG;
+	}
+
 	iwdev->msix_count = ldev->msix_count;
 
 	size = sizeof(struct i40iw_msix_vector) * iwdev->msix_count;
@@ -1462,12 +1474,6 @@ static void i40iw_deinit_device(struct i40iw_device *iwdev)
 		if (!iwdev->reset)
 			i40iw_del_macip_entry(iwdev, (u8)iwdev->mac_ip_table_idx);
 		/* fallthrough */
-	case INET_NOTIFIER:
-		if (!atomic_dec_return(&i40iw_notifiers_registered)) {
-			unregister_netevent_notifier(&i40iw_net_notifier);
-			unregister_inetaddr_notifier(&i40iw_inetaddr_notifier);
-			unregister_inet6addr_notifier(&i40iw_inetaddr6_notifier);
-		}
 		/* fallthrough */
 	case PBLE_CHUNK_MEM:
 		i40iw_destroy_pble_pool(dev, iwdev->pble_rsrc);
@@ -1550,7 +1556,7 @@ static enum i40iw_status_code i40iw_setup_init_state(struct i40iw_handler *hdl,
 
 	status = i40iw_save_msix_info(iwdev, ldev);
 	if (status)
-		goto exit;
+		return status;
 	iwdev->hw.dev_context = (void *)ldev->pcidev;
 	iwdev->hw.hw_addr = ldev->hw_addr;
 	status = i40iw_allocate_dma_mem(&iwdev->hw,
@@ -1667,8 +1673,6 @@ static int i40iw_open(struct i40e_info *ldev, struct i40e_client *client)
 			break;
 		iwdev->init_state = PBLE_CHUNK_MEM;
 		iwdev->virtchnl_wq = alloc_ordered_workqueue("iwvch", WQ_MEM_RECLAIM);
-		i40iw_register_notifiers();
-		iwdev->init_state = INET_NOTIFIER;
 		status = i40iw_add_mac_ip(iwdev);
 		if (status)
 			break;
@@ -2018,6 +2022,8 @@ static int __init i40iw_init_module(void)
 	i40iw_client.type = I40E_CLIENT_IWARP;
 	spin_lock_init(&i40iw_handler_lock);
 	ret = i40e_register_client(&i40iw_client);
+	i40iw_register_notifiers();
+
 	return ret;
 }
 
@@ -2029,6 +2035,7 @@ static int __init i40iw_init_module(void)
  */
 static void __exit i40iw_exit_module(void)
 {
+	i40iw_unregister_notifiers();
 	i40e_unregister_client(&i40iw_client);
 }
 
diff --git a/drivers/infiniband/hw/i40iw/i40iw_p.h b/drivers/infiniband/hw/i40iw/i40iw_p.h
index e217a1259f57..5498ad01c280 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_p.h
+++ b/drivers/infiniband/hw/i40iw/i40iw_p.h
@@ -59,6 +59,8 @@ enum i40iw_status_code i40iw_sc_mr_fast_register(struct i40iw_sc_qp *qp,
 						 struct i40iw_fast_reg_stag_info *info,
 						 bool post_sq);
 
+void i40iw_insert_wqe_hdr(u64 *wqe, u64 header);
+
 /* HMC/FPM functions */
 enum i40iw_status_code i40iw_sc_init_iw_hmc(struct i40iw_sc_dev *dev,
 					    u8 hmc_fn_id);
diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c b/drivers/infiniband/hw/i40iw/i40iw_puda.c
index c2cab20c4bc5..59f70676f0e0 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_puda.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -123,12 +123,11 @@ static void i40iw_puda_post_recvbuf(struct i40iw_puda_rsrc *rsrc, u32 wqe_idx,
 		get_64bit_val(wqe, 24, &offset24);
 
 	offset24 = (offset24) ? 0 : LS_64(1, I40IWQPSQ_VALID);
-	set_64bit_val(wqe, 24, offset24);
 
 	set_64bit_val(wqe, 0, buf->mem.pa);
 	set_64bit_val(wqe, 8,
 		      LS_64(buf->mem.size, I40IWQPSQ_FRAG_LEN));
-	set_64bit_val(wqe, 24, offset24);
+	i40iw_insert_wqe_hdr(wqe, offset24);
 }
 
 /**
@@ -409,9 +408,7 @@ enum i40iw_status_code i40iw_puda_send(struct i40iw_sc_qp *qp,
 	set_64bit_val(wqe, 8, LS_64(info->len, I40IWQPSQ_FRAG_LEN));
 	set_64bit_val(wqe, 16, header[0]);
 
-	/* Ensure all data is written before writing valid bit */
-	wmb();
-	set_64bit_val(wqe, 24, header[1]);
+	i40iw_insert_wqe_hdr(wqe, header[1]);
 
 	i40iw_debug_buf(qp->dev, I40IW_DEBUG_PUDA, "PUDA SEND WQE", wqe, 32);
 	i40iw_qp_post_wr(&qp->qp_uk);
@@ -539,7 +536,7 @@ static enum i40iw_status_code i40iw_puda_qp_wqe(struct i40iw_sc_dev *dev, struct
 		 LS_64(2, I40IW_CQPSQ_QP_NEXTIWSTATE) |
 		 LS_64(cqp->polarity, I40IW_CQPSQ_WQEVALID);
 
-	set_64bit_val(wqe, 24, header);
+	i40iw_insert_wqe_hdr(wqe, header);
 
 	i40iw_debug_buf(cqp->dev, I40IW_DEBUG_PUDA, "PUDA CQE", wqe, 32);
 	i40iw_sc_cqp_post_sq(cqp);
@@ -655,7 +652,7 @@ static enum i40iw_status_code i40iw_puda_cq_wqe(struct i40iw_sc_dev *dev, struct
 	    LS_64(1, I40IW_CQPSQ_CQ_ENCEQEMASK) |
 	    LS_64(1, I40IW_CQPSQ_CQ_CEQIDVALID) |
 	    LS_64(cqp->polarity, I40IW_CQPSQ_WQEVALID);
-	set_64bit_val(wqe, 24, header);
+	i40iw_insert_wqe_hdr(wqe, header);
 
 	i40iw_debug_buf(dev, I40IW_DEBUG_PUDA, "PUDA CQE",
 			wqe, I40IW_CQP_WQE_SIZE * 8);
diff --git a/drivers/infiniband/hw/i40iw/i40iw_utils.c b/drivers/infiniband/hw/i40iw/i40iw_utils.c
index 62f1f45b8737..e52dbbb4165e 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_utils.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_utils.c
@@ -160,7 +160,7 @@ int i40iw_inetaddr_event(struct notifier_block *notifier,
 		return NOTIFY_DONE;
 
 	iwdev = &hdl->device;
-	if (iwdev->init_state < INET_NOTIFIER)
+	if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing)
 		return NOTIFY_DONE;
 
 	netdev = iwdev->ldev->netdev;
@@ -217,7 +217,7 @@ int i40iw_inet6addr_event(struct notifier_block *notifier,
 		return NOTIFY_DONE;
 
 	iwdev = &hdl->device;
-	if (iwdev->init_state < INET_NOTIFIER)
+	if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing)
 		return NOTIFY_DONE;
 
 	netdev = iwdev->ldev->netdev;
@@ -266,7 +266,7 @@ int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *
 		if (!iwhdl)
 			return NOTIFY_DONE;
 		iwdev = &iwhdl->device;
-		if (iwdev->init_state < INET_NOTIFIER)
+		if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing)
 			return NOTIFY_DONE;
 		p = (__be32 *)neigh->primary_key;
 		i40iw_copy_ip_ntohl(local_ipaddr, p);
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
index 1aa411034a27..62be0a41ad0b 100644
--- a/drivers/infiniband/hw/i40iw/i40iw_verbs.c
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -826,12 +826,14 @@ static int i40iw_query_qp(struct ib_qp *ibqp,
 	attr->cap.max_inline_data = I40IW_MAX_INLINE_DATA_SIZE;
 	attr->cap.max_send_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
 	attr->cap.max_recv_sge = I40IW_MAX_WQ_FRAGMENT_COUNT;
+	attr->port_num = 1;
 	init_attr->event_handler = iwqp->ibqp.event_handler;
 	init_attr->qp_context = iwqp->ibqp.qp_context;
 	init_attr->send_cq = iwqp->ibqp.send_cq;
 	init_attr->recv_cq = iwqp->ibqp.recv_cq;
 	init_attr->srq = iwqp->ibqp.srq;
 	init_attr->cap = attr->cap;
+	init_attr->port_num = 1;
 	return 0;
 }
 
@@ -1027,7 +1029,19 @@ int i40iw_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 				iwqp->hw_tcp_state = I40IW_TCP_STATE_CLOSED;
 				iwqp->last_aeq = I40IW_AE_RESET_SENT;
 				spin_unlock_irqrestore(&iwqp->lock, flags);
+				i40iw_cm_disconn(iwqp);
 			}
+		} else {
+			spin_lock_irqsave(&iwqp->lock, flags);
+			if (iwqp->cm_id) {
+				if (atomic_inc_return(&iwqp->close_timer_started) == 1) {
+					iwqp->cm_id->add_ref(iwqp->cm_id);
+					i40iw_schedule_cm_timer(iwqp->cm_node,
+								(struct i40iw_puda_buf *)iwqp,
+								 I40IW_TIMER_TYPE_CLOSE, 1, 0);
+				}
+			}
+			spin_unlock_irqrestore(&iwqp->lock, flags);
 		}
 	}
 	return 0;
diff --git a/drivers/infiniband/hw/mlx4/sysfs.c b/drivers/infiniband/hw/mlx4/sysfs.c
index 0ba5ba7540c8..e219093d2764 100644
--- a/drivers/infiniband/hw/mlx4/sysfs.c
+++ b/drivers/infiniband/hw/mlx4/sysfs.c
@@ -221,7 +221,7 @@ void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num,
 static int add_port_entries(struct mlx4_ib_dev *device, int port_num)
 {
 	int i;
-	char buff[10];
+	char buff[11];
 	struct mlx4_ib_iov_port *port = NULL;
 	int ret = 0 ;
 	struct ib_port_attr attr;
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index ab3c562d5ba7..552f7bd4ecc3 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -778,13 +778,13 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
 	}
 
 	if (MLX5_CAP_GEN(mdev, tag_matching)) {
-		props->xrq_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
-		props->xrq_caps.max_num_tags =
+		props->tm_caps.max_rndv_hdr_size = MLX5_TM_MAX_RNDV_MSG_SIZE;
+		props->tm_caps.max_num_tags =
 			(1 << MLX5_CAP_GEN(mdev, log_tag_matching_list_sz)) - 1;
-		props->xrq_caps.flags = IB_TM_CAP_RC;
-		props->xrq_caps.max_ops =
+		props->tm_caps.flags = IB_TM_CAP_RC;
+		props->tm_caps.max_ops =
 			1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
-		props->xrq_caps.max_sge = MLX5_TM_MAX_SGE;
+		props->tm_caps.max_sge = MLX5_TM_MAX_SGE;
 	}
 
 	if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) {
@@ -3837,11 +3837,13 @@ static int delay_drop_debugfs_init(struct mlx5_ib_dev *dev)
 	if (!dbg)
 		return -ENOMEM;
 
+	dev->delay_drop.dbg = dbg;
+
 	dbg->dir_debugfs =
 		debugfs_create_dir("delay_drop",
 				   dev->mdev->priv.dbg_root);
 	if (!dbg->dir_debugfs)
-		return -ENOMEM;
+		goto out_debugfs;
 
 	dbg->events_cnt_debugfs =
 		debugfs_create_atomic_t("num_timeout_events", 0400,
@@ -3865,8 +3867,6 @@ static int delay_drop_debugfs_init(struct mlx5_ib_dev *dev)
 	if (!dbg->timeout_debugfs)
 		goto out_debugfs;
 
-	dev->delay_drop.dbg = dbg;
-
 	return 0;
 
 out_debugfs:
@@ -4174,9 +4174,9 @@ err_bfreg:
 err_uar_page:
 	mlx5_put_uars_page(dev->mdev, dev->mdev->priv.uar);
 
-err_cnt:
-	mlx5_ib_cleanup_cong_debugfs(dev);
 err_cong:
+	mlx5_ib_cleanup_cong_debugfs(dev);
+err_cnt:
 	if (MLX5_CAP_GEN(dev->mdev, max_qp_cnt))
 		mlx5_ib_dealloc_counters(dev);
 
diff --git a/drivers/infiniband/hw/mlx5/mem.c b/drivers/infiniband/hw/mlx5/mem.c
index 914f212e7ef6..f3dbd75a0a96 100644
--- a/drivers/infiniband/hw/mlx5/mem.c
+++ b/drivers/infiniband/hw/mlx5/mem.c
@@ -50,13 +50,9 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
 {
 	unsigned long tmp;
 	unsigned long m;
-	int i, k;
-	u64 base = 0;
-	int p = 0;
-	int skip;
-	int mask;
-	u64 len;
-	u64 pfn;
+	u64 base = ~0, p = 0;
+	u64 len, pfn;
+	int i = 0;
 	struct scatterlist *sg;
 	int entry;
 	unsigned long page_shift = umem->page_shift;
@@ -76,33 +72,24 @@ void mlx5_ib_cont_pages(struct ib_umem *umem, u64 addr,
 	m = find_first_bit(&tmp, BITS_PER_LONG);
 	if (max_page_shift)
 		m = min_t(unsigned long, max_page_shift - page_shift, m);
-	skip = 1 << m;
-	mask = skip - 1;
-	i = 0;
+
 	for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
 		len = sg_dma_len(sg) >> page_shift;
 		pfn = sg_dma_address(sg) >> page_shift;
-		for (k = 0; k < len; k++) {
-			if (!(i & mask)) {
-				tmp = (unsigned long)pfn;
-				m = min_t(unsigned long, m, find_first_bit(&tmp, BITS_PER_LONG));
-				skip = 1 << m;
-				mask = skip - 1;
-				base = pfn;
-				p = 0;
-			} else {
-				if (base + p != pfn) {
-					tmp = (unsigned long)p;
-					m = find_first_bit(&tmp, BITS_PER_LONG);
-					skip = 1 << m;
-					mask = skip - 1;
-					base = pfn;
-					p = 0;
-				}
-			}
-			p++;
-			i++;
+		if (base + p != pfn) {
+			/* If either the offset or the new
+			 * base are unaligned update m
+			 */
+			tmp = (unsigned long)(pfn | p);
+			if (!IS_ALIGNED(tmp, 1 << m))
+				m = find_first_bit(&tmp, BITS_PER_LONG);
+
+			base = pfn;
+			p = 0;
 		}
+
+		p += len;
+		i += len;
 	}
 
 	if (i) {
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 0e2789d9bb4d..37bbc543847a 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -47,7 +47,8 @@ enum {
 
 #define MLX5_UMR_ALIGN 2048
 
-static int clean_mr(struct mlx5_ib_mr *mr);
+static int clean_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
+static int dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
 static int mr_cache_max_order(struct mlx5_ib_dev *dev);
 static int unreg_umr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr);
 
@@ -1270,8 +1271,9 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 
 		err = mlx5_ib_update_xlt(mr, 0, ncont, page_shift,
 					 update_xlt_flags);
+
 		if (err) {
-			mlx5_ib_dereg_mr(&mr->ibmr);
+			dereg_mr(dev, mr);
 			return ERR_PTR(err);
 		}
 	}
@@ -1356,7 +1358,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
 		err = mr_umem_get(pd, addr, len, access_flags, &mr->umem,
 				  &npages, &page_shift, &ncont, &order);
 		if (err < 0) {
-			clean_mr(mr);
+			clean_mr(dev, mr);
 			return err;
 		}
 	}
@@ -1410,7 +1412,7 @@ int mlx5_ib_rereg_user_mr(struct ib_mr *ib_mr, int flags, u64 start,
 		if (err) {
 			mlx5_ib_warn(dev, "Failed to rereg UMR\n");
 			ib_umem_release(mr->umem);
-			clean_mr(mr);
+			clean_mr(dev, mr);
 			return err;
 		}
 	}
@@ -1469,9 +1471,8 @@ mlx5_free_priv_descs(struct mlx5_ib_mr *mr)
 	}
 }
 
-static int clean_mr(struct mlx5_ib_mr *mr)
+static int clean_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
 {
-	struct mlx5_ib_dev *dev = to_mdev(mr->ibmr.device);
 	int allocated_from_cache = mr->allocated_from_cache;
 	int err;
 
@@ -1507,10 +1508,8 @@ static int clean_mr(struct mlx5_ib_mr *mr)
 	return 0;
 }
 
-int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
+static int dereg_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
 {
-	struct mlx5_ib_dev *dev = to_mdev(ibmr->device);
-	struct mlx5_ib_mr *mr = to_mmr(ibmr);
 	int npages = mr->npages;
 	struct ib_umem *umem = mr->umem;
 
@@ -1539,7 +1538,7 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
 	}
 #endif
 
-	clean_mr(mr);
+	clean_mr(dev, mr);
 
 	if (umem) {
 		ib_umem_release(umem);
@@ -1549,6 +1548,14 @@ int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
 	return 0;
 }
 
+int mlx5_ib_dereg_mr(struct ib_mr *ibmr)
+{
+	struct mlx5_ib_dev *dev = to_mdev(ibmr->device);
+	struct mlx5_ib_mr *mr = to_mmr(ibmr);
+
+	return dereg_mr(dev, mr);
+}
+
 struct ib_mr *mlx5_ib_alloc_mr(struct ib_pd *pd,
 			       enum ib_mr_type mr_type,
 			       u32 max_num_sg)
diff --git a/drivers/infiniband/hw/mthca/Makefile b/drivers/infiniband/hw/mthca/Makefile
index e388d95d0cf1..3a09e9ffd634 100644
--- a/drivers/infiniband/hw/mthca/Makefile
+++ b/drivers/infiniband/hw/mthca/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INFINIBAND_MTHCA) += ib_mthca.o
 
 ib_mthca-y :=	mthca_main.o mthca_cmd.o mthca_profile.o mthca_reset.o \
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index f0dc5f4aa177..442b9bdc0f03 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -3232,7 +3232,7 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
 					    mr->ibmr.iova);
 			set_wqe_32bit_value(wqe->wqe_words,
 					    NES_IWARP_SQ_FMR_WQE_LENGTH_LOW_IDX,
-					    mr->ibmr.length);
+					    lower_32_bits(mr->ibmr.length));
 			set_wqe_32bit_value(wqe->wqe_words,
 					    NES_IWARP_SQ_FMR_WQE_LENGTH_HIGH_IDX, 0);
 			set_wqe_32bit_value(wqe->wqe_words,
@@ -3274,7 +3274,7 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
 					    mr->npages * 8);
 
 			nes_debug(NES_DBG_IW_TX, "SQ_REG_MR: iova_start: %llx, "
-				  "length: %d, rkey: %0x, pgl_paddr: %llx, "
+				  "length: %lld, rkey: %0x, pgl_paddr: %llx, "
 				  "page_list_len: %u, wqe_misc: %x\n",
 				  (unsigned long long) mr->ibmr.iova,
 				  mr->ibmr.length,
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index dcb5942f9fb5..65b166cc7437 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -252,7 +252,10 @@ static int ocrdma_get_mbx_errno(u32 status)
 		case OCRDMA_MBX_ADDI_STATUS_INSUFFICIENT_RESOURCES:
 			err_num = -EAGAIN;
 			break;
+		default:
+			err_num = -EFAULT;
 		}
+		break;
 	default:
 		err_num = -EFAULT;
 	}
diff --git a/drivers/infiniband/hw/qedr/qedr.h b/drivers/infiniband/hw/qedr/qedr.h
index b2bb42e2805d..254083b524bd 100644
--- a/drivers/infiniband/hw/qedr/qedr.h
+++ b/drivers/infiniband/hw/qedr/qedr.h
@@ -387,7 +387,7 @@ struct qedr_qp {
 		u8 wqe_size;
 
 		u8 smac[ETH_ALEN];
-		u16 vlan_id;
+		u16 vlan;
 		int rc;
 	} *rqe_wr_id;
 
diff --git a/drivers/infiniband/hw/qedr/qedr_cm.c b/drivers/infiniband/hw/qedr/qedr_cm.c
index 4689e802b332..ad8965397cf7 100644
--- a/drivers/infiniband/hw/qedr/qedr_cm.c
+++ b/drivers/infiniband/hw/qedr/qedr_cm.c
@@ -105,7 +105,7 @@ void qedr_ll2_complete_rx_packet(void *cxt,
 
 	qp->rqe_wr_id[qp->rq.gsi_cons].rc = data->u.data_length_error ?
 		-EINVAL : 0;
-	qp->rqe_wr_id[qp->rq.gsi_cons].vlan_id = data->vlan;
+	qp->rqe_wr_id[qp->rq.gsi_cons].vlan = data->vlan;
 	/* note: length stands for data length i.e. GRH is excluded */
 	qp->rqe_wr_id[qp->rq.gsi_cons].sg_list[0].length =
 		data->length.data_length;
@@ -694,6 +694,7 @@ int qedr_gsi_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
 	struct qedr_cq *cq = get_qedr_cq(ibcq);
 	struct qedr_qp *qp = dev->gsi_qp;
 	unsigned long flags;
+	u16 vlan_id;
 	int i = 0;
 
 	spin_lock_irqsave(&cq->cq_lock, flags);
@@ -712,9 +713,14 @@ int qedr_gsi_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc)
 		wc[i].wc_flags |= IB_WC_GRH | IB_WC_IP_CSUM_OK;
 		ether_addr_copy(wc[i].smac, qp->rqe_wr_id[qp->rq.cons].smac);
 		wc[i].wc_flags |= IB_WC_WITH_SMAC;
-		if (qp->rqe_wr_id[qp->rq.cons].vlan_id) {
+
+		vlan_id = qp->rqe_wr_id[qp->rq.cons].vlan &
+			  VLAN_VID_MASK;
+		if (vlan_id) {
 			wc[i].wc_flags |= IB_WC_WITH_VLAN;
-			wc[i].vlan_id = qp->rqe_wr_id[qp->rq.cons].vlan_id;
+			wc[i].vlan_id = vlan_id;
+			wc[i].sl = (qp->rqe_wr_id[qp->rq.cons].vlan &
+				    VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
 		}
 
 		qedr_inc_sw_cons(&qp->rq);
diff --git a/drivers/infiniband/hw/qib/Makefile b/drivers/infiniband/hw/qib/Makefile
index 79ebd79e8405..80ffab88fbca 100644
--- a/drivers/infiniband/hw/qib/Makefile
+++ b/drivers/infiniband/hw/qib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INFINIBAND_QIB) += ib_qib.o
 
 ib_qib-y := qib_diag.o qib_driver.o qib_eeprom.o \
diff --git a/drivers/infiniband/hw/qib/qib_ruc.c b/drivers/infiniband/hw/qib/qib_ruc.c
index 53efbb0b40c4..9a37e844d4c8 100644
--- a/drivers/infiniband/hw/qib/qib_ruc.c
+++ b/drivers/infiniband/hw/qib/qib_ruc.c
@@ -368,7 +368,7 @@ static void qib_ruc_loopback(struct rvt_qp *sqp)
 
 again:
 	smp_read_barrier_depends(); /* see post_one_send() */
-	if (sqp->s_last == ACCESS_ONCE(sqp->s_head))
+	if (sqp->s_last == READ_ONCE(sqp->s_head))
 		goto clr_busy;
 	wqe = rvt_get_swqe_ptr(sqp, sqp->s_last);
 
diff --git a/drivers/infiniband/hw/qib/qib_uc.c b/drivers/infiniband/hw/qib/qib_uc.c
index 498e2202e72c..bddcc37ace44 100644
--- a/drivers/infiniband/hw/qib/qib_uc.c
+++ b/drivers/infiniband/hw/qib/qib_uc.c
@@ -61,7 +61,7 @@ int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags)
 			goto bail;
 		/* We are in the error state, flush the work request. */
 		smp_read_barrier_depends(); /* see post_one_send() */
-		if (qp->s_last == ACCESS_ONCE(qp->s_head))
+		if (qp->s_last == READ_ONCE(qp->s_head))
 			goto bail;
 		/* If DMAs are in progress, we can't flush immediately. */
 		if (atomic_read(&priv->s_dma_busy)) {
@@ -91,7 +91,7 @@ int qib_make_uc_req(struct rvt_qp *qp, unsigned long *flags)
 			goto bail;
 		/* Check if send work queue is empty. */
 		smp_read_barrier_depends(); /* see post_one_send() */
-		if (qp->s_cur == ACCESS_ONCE(qp->s_head))
+		if (qp->s_cur == READ_ONCE(qp->s_head))
 			goto bail;
 		/*
 		 * Start a new request.
diff --git a/drivers/infiniband/hw/qib/qib_ud.c b/drivers/infiniband/hw/qib/qib_ud.c
index be4907453ac4..15962ed193ce 100644
--- a/drivers/infiniband/hw/qib/qib_ud.c
+++ b/drivers/infiniband/hw/qib/qib_ud.c
@@ -253,7 +253,7 @@ int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags)
 			goto bail;
 		/* We are in the error state, flush the work request. */
 		smp_read_barrier_depends(); /* see post_one_send */
-		if (qp->s_last == ACCESS_ONCE(qp->s_head))
+		if (qp->s_last == READ_ONCE(qp->s_head))
 			goto bail;
 		/* If DMAs are in progress, we can't flush immediately. */
 		if (atomic_read(&priv->s_dma_busy)) {
@@ -267,7 +267,7 @@ int qib_make_ud_req(struct rvt_qp *qp, unsigned long *flags)
 
 	/* see post_one_send() */
 	smp_read_barrier_depends();
-	if (qp->s_cur == ACCESS_ONCE(qp->s_head))
+	if (qp->s_cur == READ_ONCE(qp->s_head))
 		goto bail;
 
 	wqe = rvt_get_swqe_ptr(qp, qp->s_cur);
diff --git a/drivers/infiniband/hw/usnic/Makefile b/drivers/infiniband/hw/usnic/Makefile
index 99fb2db47cd5..94ae7a1a6950 100644
--- a/drivers/infiniband/hw/usnic/Makefile
+++ b/drivers/infiniband/hw/usnic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Idrivers/net/ethernet/cisco/enic
 
 obj-$(CONFIG_INFINIBAND_USNIC)+= usnic_verbs.o
diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h
index 663a0c301c43..984aa3484928 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma.h
@@ -416,9 +416,34 @@ static inline enum ib_wc_status pvrdma_wc_status_to_ib(
 	return (enum ib_wc_status)status;
 }
 
-static inline int pvrdma_wc_opcode_to_ib(int opcode)
-{
-	return opcode;
+static inline int pvrdma_wc_opcode_to_ib(unsigned int opcode)
+{
+	switch (opcode) {
+	case PVRDMA_WC_SEND:
+		return IB_WC_SEND;
+	case PVRDMA_WC_RDMA_WRITE:
+		return IB_WC_RDMA_WRITE;
+	case PVRDMA_WC_RDMA_READ:
+		return IB_WC_RDMA_READ;
+	case PVRDMA_WC_COMP_SWAP:
+		return IB_WC_COMP_SWAP;
+	case PVRDMA_WC_FETCH_ADD:
+		return IB_WC_FETCH_ADD;
+	case PVRDMA_WC_LOCAL_INV:
+		return IB_WC_LOCAL_INV;
+	case PVRDMA_WC_FAST_REG_MR:
+		return IB_WC_REG_MR;
+	case PVRDMA_WC_MASKED_COMP_SWAP:
+		return IB_WC_MASKED_COMP_SWAP;
+	case PVRDMA_WC_MASKED_FETCH_ADD:
+		return IB_WC_MASKED_FETCH_ADD;
+	case PVRDMA_WC_RECV:
+		return IB_WC_RECV;
+	case PVRDMA_WC_RECV_RDMA_WITH_IMM:
+		return IB_WC_RECV_RDMA_WITH_IMM;
+	default:
+		return IB_WC_SEND;
+	}
 }
 
 static inline int pvrdma_wc_flags_to_ib(int flags)
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index 22df09ae809e..b670cb9d2006 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -1073,7 +1073,7 @@ int rvt_error_qp(struct rvt_qp *qp, enum ib_wc_status err)
 	rdi->driver_f.notify_error_qp(qp);
 
 	/* Schedule the sending tasklet to drain the send work queue. */
-	if (ACCESS_ONCE(qp->s_last) != qp->s_head)
+	if (READ_ONCE(qp->s_last) != qp->s_head)
 		rdi->driver_f.schedule_send(qp);
 
 	rvt_clear_mr_refs(qp, 0);
@@ -1686,7 +1686,7 @@ static inline int rvt_qp_is_avail(
 	if (likely(qp->s_avail))
 		return 0;
 	smp_read_barrier_depends(); /* see rc.c */
-	slast = ACCESS_ONCE(qp->s_last);
+	slast = READ_ONCE(qp->s_last);
 	if (qp->s_head >= slast)
 		avail = qp->s_size - (qp->s_head - slast);
 	else
@@ -1917,7 +1917,7 @@ int rvt_post_send(struct ib_qp *ibqp, struct ib_send_wr *wr,
 	 * ahead and kick the send engine into gear. Otherwise we will always
 	 * just schedule the send to happen later.
 	 */
-	call_send = qp->s_head == ACCESS_ONCE(qp->s_last) && !wr->next;
+	call_send = qp->s_head == READ_ONCE(qp->s_last) && !wr->next;
 
 	for (; wr; wr = wr->next) {
 		err = rvt_post_one_wr(qp, wr, &call_send);
diff --git a/drivers/infiniband/sw/rxe/Makefile b/drivers/infiniband/sw/rxe/Makefile
index 3f12beb7076f..66af72dca759 100644
--- a/drivers/infiniband/sw/rxe/Makefile
+++ b/drivers/infiniband/sw/rxe/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RDMA_RXE) += rdma_rxe.o
 
 rdma_rxe-y := \
diff --git a/drivers/infiniband/ulp/Makefile b/drivers/infiniband/ulp/Makefile
index c28af1823a2d..437813c7b481 100644
--- a/drivers/infiniband/ulp/Makefile
+++ b/drivers/infiniband/ulp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INFINIBAND_IPOIB)		+= ipoib/
 obj-$(CONFIG_INFINIBAND_SRP)		+= srp/
 obj-$(CONFIG_INFINIBAND_SRPT)		+= srpt/
diff --git a/drivers/infiniband/ulp/ipoib/Makefile b/drivers/infiniband/ulp/ipoib/Makefile
index e5430dd50764..6ece857ed262 100644
--- a/drivers/infiniband/ulp/ipoib/Makefile
+++ b/drivers/infiniband/ulp/ipoib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INFINIBAND_IPOIB)			+= ib_ipoib.o
 
 ib_ipoib-y					:= ipoib_main.o \
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 14b62f7472b4..7774654c2ccb 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -823,12 +823,18 @@ void ipoib_cm_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
 	    wc->status != IB_WC_WR_FLUSH_ERR) {
 		struct ipoib_neigh *neigh;
 
-		if (wc->status != IB_WC_RNR_RETRY_EXC_ERR)
-			ipoib_warn(priv, "failed cm send event (status=%d, wrid=%d vend_err %x)\n",
-				   wc->status, wr_id, wc->vendor_err);
+		/* IB_WC[_RNR]_RETRY_EXC_ERR error is part of the life cycle,
+		 * so don't make waves.
+		 */
+		if (wc->status == IB_WC_RNR_RETRY_EXC_ERR ||
+		    wc->status == IB_WC_RETRY_EXC_ERR)
+			ipoib_dbg(priv,
+				  "%s: failed cm send event (status=%d, wrid=%d vend_err 0x%x)\n",
+				   __func__, wc->status, wr_id, wc->vendor_err);
 		else
-			ipoib_dbg(priv, "failed cm send event (status=%d, wrid=%d vend_err %x)\n",
-				  wc->status, wr_id, wc->vendor_err);
+			ipoib_warn(priv,
+				    "%s: failed cm send event (status=%d, wrid=%d vend_err 0x%x)\n",
+				   __func__, wc->status, wr_id, wc->vendor_err);
 
 		spin_lock_irqsave(&priv->lock, flags);
 		neigh = tx->neigh;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 2e075377242e..6cd61638b441 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -1000,19 +1000,6 @@ static inline int update_parent_pkey(struct ipoib_dev_priv *priv)
 		 */
 		priv->dev->broadcast[8] = priv->pkey >> 8;
 		priv->dev->broadcast[9] = priv->pkey & 0xff;
-
-		/*
-		 * Update the broadcast address in the priv->broadcast object,
-		 * in case it already exists, otherwise no one will do that.
-		 */
-		if (priv->broadcast) {
-			spin_lock_irq(&priv->lock);
-			memcpy(priv->broadcast->mcmember.mgid.raw,
-			       priv->dev->broadcast + 4,
-			sizeof(union ib_gid));
-			spin_unlock_irq(&priv->lock);
-		}
-
 		return 0;
 	}
 
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index bac95b509a9b..dcc77014018d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -2180,6 +2180,7 @@ static struct net_device *ipoib_add_port(const char *format,
 {
 	struct ipoib_dev_priv *priv;
 	struct ib_port_attr attr;
+	struct rdma_netdev *rn;
 	int result = -ENOMEM;
 
 	priv = ipoib_intf_alloc(hca, port, format);
@@ -2279,7 +2280,8 @@ register_failed:
 	ipoib_dev_cleanup(priv->dev);
 
 device_init_failed:
-	free_netdev(priv->dev);
+	rn = netdev_priv(priv->dev);
+	rn->free_rdma_netdev(priv->dev);
 	kfree(priv);
 
 alloc_mem_failed:
@@ -2328,7 +2330,7 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
 		return;
 
 	list_for_each_entry_safe(priv, tmp, dev_list, list) {
-		struct rdma_netdev *rn = netdev_priv(priv->dev);
+		struct rdma_netdev *parent_rn = netdev_priv(priv->dev);
 
 		ib_unregister_event_handler(&priv->event_handler);
 		flush_workqueue(ipoib_workqueue);
@@ -2350,10 +2352,15 @@ static void ipoib_remove_one(struct ib_device *device, void *client_data)
 		unregister_netdev(priv->dev);
 		mutex_unlock(&priv->sysfs_mutex);
 
-		rn->free_rdma_netdev(priv->dev);
+		parent_rn->free_rdma_netdev(priv->dev);
+
+		list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list) {
+			struct rdma_netdev *child_rn;
 
-		list_for_each_entry_safe(cpriv, tcpriv, &priv->child_intfs, list)
+			child_rn = netdev_priv(cpriv->dev);
+			child_rn->free_rdma_netdev(cpriv->dev);
 			kfree(cpriv);
+		}
 
 		kfree(priv);
 	}
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 9927cd6b7082..55a9b71ed05a 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -141,14 +141,17 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
 		return restart_syscall();
 	}
 
-	priv = ipoib_intf_alloc(ppriv->ca, ppriv->port, intf_name);
-	if (!priv) {
+	if (!down_write_trylock(&ppriv->vlan_rwsem)) {
 		rtnl_unlock();
 		mutex_unlock(&ppriv->sysfs_mutex);
-		return -ENOMEM;
+		return restart_syscall();
 	}
 
-	down_write(&ppriv->vlan_rwsem);
+	priv = ipoib_intf_alloc(ppriv->ca, ppriv->port, intf_name);
+	if (!priv) {
+		result = -ENOMEM;
+		goto out;
+	}
 
 	/*
 	 * First ensure this isn't a duplicate. We check the parent device and
@@ -175,8 +178,11 @@ out:
 	rtnl_unlock();
 	mutex_unlock(&ppriv->sysfs_mutex);
 
-	if (result) {
-		free_netdev(priv->dev);
+	if (result && priv) {
+		struct rdma_netdev *rn;
+
+		rn = netdev_priv(priv->dev);
+		rn->free_rdma_netdev(priv->dev);
 		kfree(priv);
 	}
 
@@ -204,7 +210,12 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
 		return restart_syscall();
 	}
 
-	down_write(&ppriv->vlan_rwsem);
+	if (!down_write_trylock(&ppriv->vlan_rwsem)) {
+		rtnl_unlock();
+		mutex_unlock(&ppriv->sysfs_mutex);
+		return restart_syscall();
+	}
+
 	list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
 		if (priv->pkey == pkey &&
 		    priv->child_type == IPOIB_LEGACY_CHILD) {
@@ -224,7 +235,10 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
 	mutex_unlock(&ppriv->sysfs_mutex);
 
 	if (dev) {
-		free_netdev(dev);
+		struct rdma_netdev *rn;
+
+		rn = netdev_priv(dev);
+		rn->free_rdma_netdev(priv->dev);
 		kfree(priv);
 		return 0;
 	}
diff --git a/drivers/infiniband/ulp/iser/iser_memory.c b/drivers/infiniband/ulp/iser/iser_memory.c
index 9c3e9ab53a41..322209d5ff58 100644
--- a/drivers/infiniband/ulp/iser/iser_memory.c
+++ b/drivers/infiniband/ulp/iser/iser_memory.c
@@ -154,7 +154,7 @@ static void iser_dump_page_vec(struct iser_page_vec *page_vec)
 {
 	int i;
 
-	iser_err("page vec npages %d data length %d\n",
+	iser_err("page vec npages %d data length %lld\n",
 		 page_vec->npages, page_vec->fake_mr.length);
 	for (i = 0; i < page_vec->npages; i++)
 		iser_err("vec[%d]: %llx\n", i, page_vec->pages[i]);
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index 87d994de8c91..d6fd248320ae 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/socket.h>
 #include <linux/in.h>
 #include <linux/in6.h>
diff --git a/drivers/input/Makefile b/drivers/input/Makefile
index 595820bbabe9..40de6a7be641 100644
--- a/drivers/input/Makefile
+++ b/drivers/input/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the input core drivers.
 #
diff --git a/drivers/input/ff-core.c b/drivers/input/ff-core.c
index 8f2042432c85..66a46c84e28f 100644
--- a/drivers/input/ff-core.c
+++ b/drivers/input/ff-core.c
@@ -237,9 +237,15 @@ int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file)
 EXPORT_SYMBOL_GPL(input_ff_erase);
 
 /*
- * flush_effects - erase all effects owned by a file handle
+ * input_ff_flush - erase all effects owned by a file handle
+ * @dev: input device to erase effect from
+ * @file: purported owner of the effects
+ *
+ * This function erases all force-feedback effects associated with
+ * the given owner from specified device. Note that @file may be %NULL,
+ * in which case all effects will be erased.
  */
-static int flush_effects(struct input_dev *dev, struct file *file)
+int input_ff_flush(struct input_dev *dev, struct file *file)
 {
 	struct ff_device *ff = dev->ff;
 	int i;
@@ -255,6 +261,7 @@ static int flush_effects(struct input_dev *dev, struct file *file)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(input_ff_flush);
 
 /**
  * input_ff_event() - generic handler for force-feedback events
@@ -343,7 +350,7 @@ int input_ff_create(struct input_dev *dev, unsigned int max_effects)
 	mutex_init(&ff->mutex);
 
 	dev->ff = ff;
-	dev->flush = flush_effects;
+	dev->flush = input_ff_flush;
 	dev->event = input_ff_event;
 	__set_bit(EV_FF, dev->evbit);
 
diff --git a/drivers/input/gameport/Makefile b/drivers/input/gameport/Makefile
index b6f6097bd8c4..73ad8fe4db79 100644
--- a/drivers/input/gameport/Makefile
+++ b/drivers/input/gameport/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the gameport drivers.
 #
diff --git a/drivers/input/input.c b/drivers/input/input.c
index d268fdc23c64..762bfb9487dc 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -933,58 +933,52 @@ int input_set_keycode(struct input_dev *dev,
 }
 EXPORT_SYMBOL(input_set_keycode);
 
+bool input_match_device_id(const struct input_dev *dev,
+			   const struct input_device_id *id)
+{
+	if (id->flags & INPUT_DEVICE_ID_MATCH_BUS)
+		if (id->bustype != dev->id.bustype)
+			return false;
+
+	if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR)
+		if (id->vendor != dev->id.vendor)
+			return false;
+
+	if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT)
+		if (id->product != dev->id.product)
+			return false;
+
+	if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION)
+		if (id->version != dev->id.version)
+			return false;
+
+	if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX) ||
+	    !bitmap_subset(id->keybit, dev->keybit, KEY_MAX) ||
+	    !bitmap_subset(id->relbit, dev->relbit, REL_MAX) ||
+	    !bitmap_subset(id->absbit, dev->absbit, ABS_MAX) ||
+	    !bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX) ||
+	    !bitmap_subset(id->ledbit, dev->ledbit, LED_MAX) ||
+	    !bitmap_subset(id->sndbit, dev->sndbit, SND_MAX) ||
+	    !bitmap_subset(id->ffbit, dev->ffbit, FF_MAX) ||
+	    !bitmap_subset(id->swbit, dev->swbit, SW_MAX) ||
+	    !bitmap_subset(id->propbit, dev->propbit, INPUT_PROP_MAX)) {
+		return false;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL(input_match_device_id);
+
 static const struct input_device_id *input_match_device(struct input_handler *handler,
 							struct input_dev *dev)
 {
 	const struct input_device_id *id;
 
 	for (id = handler->id_table; id->flags || id->driver_info; id++) {
-
-		if (id->flags & INPUT_DEVICE_ID_MATCH_BUS)
-			if (id->bustype != dev->id.bustype)
-				continue;
-
-		if (id->flags & INPUT_DEVICE_ID_MATCH_VENDOR)
-			if (id->vendor != dev->id.vendor)
-				continue;
-
-		if (id->flags & INPUT_DEVICE_ID_MATCH_PRODUCT)
-			if (id->product != dev->id.product)
-				continue;
-
-		if (id->flags & INPUT_DEVICE_ID_MATCH_VERSION)
-			if (id->version != dev->id.version)
-				continue;
-
-		if (!bitmap_subset(id->evbit, dev->evbit, EV_MAX))
-			continue;
-
-		if (!bitmap_subset(id->keybit, dev->keybit, KEY_MAX))
-			continue;
-
-		if (!bitmap_subset(id->relbit, dev->relbit, REL_MAX))
-			continue;
-
-		if (!bitmap_subset(id->absbit, dev->absbit, ABS_MAX))
-			continue;
-
-		if (!bitmap_subset(id->mscbit, dev->mscbit, MSC_MAX))
-			continue;
-
-		if (!bitmap_subset(id->ledbit, dev->ledbit, LED_MAX))
-			continue;
-
-		if (!bitmap_subset(id->sndbit, dev->sndbit, SND_MAX))
-			continue;
-
-		if (!bitmap_subset(id->ffbit, dev->ffbit, FF_MAX))
-			continue;
-
-		if (!bitmap_subset(id->swbit, dev->swbit, SW_MAX))
-			continue;
-
-		if (!handler->match || handler->match(handler, dev))
+		if (input_match_device_id(dev, id) &&
+		    (!handler->match || handler->match(handler, dev))) {
 			return id;
+		}
 	}
 
 	return NULL;
diff --git a/drivers/input/joydev.c b/drivers/input/joydev.c
index 29d677c714d2..7b29a8944039 100644
--- a/drivers/input/joydev.c
+++ b/drivers/input/joydev.c
@@ -747,6 +747,68 @@ static void joydev_cleanup(struct joydev *joydev)
 		input_close_device(handle);
 }
 
+/*
+ * These codes are copied from from hid-ids.h, unfortunately there is no common
+ * usb_ids/bt_ids.h header.
+ */
+#define USB_VENDOR_ID_SONY			0x054c
+#define USB_DEVICE_ID_SONY_PS3_CONTROLLER		0x0268
+#define USB_DEVICE_ID_SONY_PS4_CONTROLLER		0x05c4
+#define USB_DEVICE_ID_SONY_PS4_CONTROLLER_2		0x09cc
+#define USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE	0x0ba0
+
+#define USB_VENDOR_ID_THQ			0x20d6
+#define USB_DEVICE_ID_THQ_PS3_UDRAW			0xcb17
+
+#define ACCEL_DEV(vnd, prd)						\
+	{								\
+		.flags = INPUT_DEVICE_ID_MATCH_VENDOR |			\
+				INPUT_DEVICE_ID_MATCH_PRODUCT |		\
+				INPUT_DEVICE_ID_MATCH_PROPBIT,		\
+		.vendor = (vnd),					\
+		.product = (prd),					\
+		.propbit = { BIT_MASK(INPUT_PROP_ACCELEROMETER) },	\
+	}
+
+static const struct input_device_id joydev_blacklist[] = {
+	/* Avoid touchpads and touchscreens */
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+				INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH) },
+	},
+	/* Avoid tablets, digitisers and similar devices */
+	{
+		.flags = INPUT_DEVICE_ID_MATCH_EVBIT |
+				INPUT_DEVICE_ID_MATCH_KEYBIT,
+		.evbit = { BIT_MASK(EV_KEY) },
+		.keybit = { [BIT_WORD(BTN_DIGI)] = BIT_MASK(BTN_DIGI) },
+	},
+	/* Disable accelerometers on composite devices */
+	ACCEL_DEV(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER),
+	ACCEL_DEV(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER),
+	ACCEL_DEV(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_2),
+	ACCEL_DEV(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER_DONGLE),
+	ACCEL_DEV(USB_VENDOR_ID_THQ, USB_DEVICE_ID_THQ_PS3_UDRAW),
+	{ /* sentinel */ }
+};
+
+static bool joydev_dev_is_blacklisted(struct input_dev *dev)
+{
+	const struct input_device_id *id;
+
+	for (id = joydev_blacklist; id->flags; id++) {
+		if (input_match_device_id(dev, id)) {
+			dev_dbg(&dev->dev,
+				"joydev: blacklisting '%s'\n", dev->name);
+			return true;
+		}
+	}
+
+	return false;
+}
+
 static bool joydev_dev_is_absolute_mouse(struct input_dev *dev)
 {
 	DECLARE_BITMAP(jd_scratch, KEY_CNT);
@@ -807,12 +869,8 @@ static bool joydev_dev_is_absolute_mouse(struct input_dev *dev)
 
 static bool joydev_match(struct input_handler *handler, struct input_dev *dev)
 {
-	/* Avoid touchpads and touchscreens */
-	if (test_bit(EV_KEY, dev->evbit) && test_bit(BTN_TOUCH, dev->keybit))
-		return false;
-
-	/* Avoid tablets, digitisers and similar devices */
-	if (test_bit(EV_KEY, dev->evbit) && test_bit(BTN_DIGI, dev->keybit))
+	/* Disable blacklisted devices */
+	if (joydev_dev_is_blacklisted(dev))
 		return false;
 
 	/* Avoid absolute mice */
diff --git a/drivers/input/joystick/Makefile b/drivers/input/joystick/Makefile
index 496fd56b3f1b..67651efda2e1 100644
--- a/drivers/input/joystick/Makefile
+++ b/drivers/input/joystick/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the input core drivers.
 #
diff --git a/drivers/input/joystick/adi.c b/drivers/input/joystick/adi.c
index d09cefa37931..15a71acb6997 100644
--- a/drivers/input/joystick/adi.c
+++ b/drivers/input/joystick/adi.c
@@ -313,7 +313,7 @@ static void adi_close(struct input_dev *dev)
 
 static void adi_init_digital(struct gameport *gameport)
 {
-	int seq[] = { 4, -2, -3, 10, -6, -11, -7, -9, 11, 0 };
+	static const int seq[] = { 4, -2, -3, 10, -6, -11, -7, -9, 11, 0 };
 	int i;
 
 	for (i = 0; seq[i]; i++) {
diff --git a/drivers/input/joystick/xpad.c b/drivers/input/joystick/xpad.c
index f8e34ef643c7..d86e59515b9c 100644
--- a/drivers/input/joystick/xpad.c
+++ b/drivers/input/joystick/xpad.c
@@ -1764,10 +1764,12 @@ static int xpad_probe(struct usb_interface *intf, const struct usb_device_id *id
 		struct usb_endpoint_descriptor *ep =
 				&intf->cur_altsetting->endpoint[i].desc;
 
-		if (usb_endpoint_dir_in(ep))
-			ep_irq_in = ep;
-		else
-			ep_irq_out = ep;
+		if (usb_endpoint_xfer_int(ep)) {
+			if (usb_endpoint_dir_in(ep))
+				ep_irq_in = ep;
+			else
+				ep_irq_out = ep;
+		}
 	}
 
 	if (!ep_irq_in || !ep_irq_out) {
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index d2338bacdad1..526e68294e6e 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the input core drivers.
 #
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
index e37e335e406f..6da607d3b811 100644
--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -234,14 +234,7 @@ static irqreturn_t tca8418_irq_handler(int irq, void *dev_id)
 static int tca8418_configure(struct tca8418_keypad *keypad_data,
 			     u32 rows, u32 cols)
 {
-	int reg, error;
-
-	/* Write config register, if this fails assume device not present */
-	error = tca8418_write_byte(keypad_data, REG_CFG,
-				CFG_INT_CFG | CFG_OVR_FLOW_IEN | CFG_KE_IEN);
-	if (error < 0)
-		return -ENODEV;
-
+	int reg, error = 0;
 
 	/* Assemble a mask for row and column registers */
 	reg  =  ~(~0 << rows);
@@ -257,6 +250,12 @@ static int tca8418_configure(struct tca8418_keypad *keypad_data,
 	error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS2, reg >> 8);
 	error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS3, reg >> 16);
 
+	if (error)
+		return error;
+
+	error = tca8418_write_byte(keypad_data, REG_CFG,
+				CFG_INT_CFG | CFG_OVR_FLOW_IEN | CFG_KE_IEN);
+
 	return error;
 }
 
@@ -268,6 +267,7 @@ static int tca8418_keypad_probe(struct i2c_client *client,
 	struct input_dev *input;
 	u32 rows = 0, cols = 0;
 	int error, row_shift, max_keys;
+	u8 reg;
 
 	/* Check i2c driver capabilities */
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)) {
@@ -301,10 +301,10 @@ static int tca8418_keypad_probe(struct i2c_client *client,
 	keypad_data->client = client;
 	keypad_data->row_shift = row_shift;
 
-	/* Initialize the chip or fail if chip isn't present */
-	error = tca8418_configure(keypad_data, rows, cols);
-	if (error < 0)
-		return error;
+	/* Read key lock register, if this fails assume device not present */
+	error = tca8418_read_byte(keypad_data, REG_KEY_LCK_EC, &reg);
+	if (error)
+		return -ENODEV;
 
 	/* Configure input device */
 	input = devm_input_allocate_device(dev);
@@ -340,6 +340,11 @@ static int tca8418_keypad_probe(struct i2c_client *client,
 		return error;
 	}
 
+	/* Initialize the chip */
+	error = tca8418_configure(keypad_data, rows, cols);
+	if (error < 0)
+		return error;
+
 	error = input_register_device(input);
 	if (error) {
 		dev_err(dev, "Unable to register input device, error: %d\n",
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index f47e836eaa0f..9f082a388388 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -581,6 +581,18 @@ config INPUT_PWM_BEEPER
 	  To compile this driver as a module, choose M here: the module will be
 	  called pwm-beeper.
 
+config INPUT_PWM_VIBRA
+	tristate "PWM vibrator support"
+	depends on PWM
+	select INPUT_FF_MEMLESS
+	help
+	  Say Y here to get support for PWM based vibrator devices.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called pwm-vibra.
+
 config INPUT_RK805_PWRKEY
 	tristate "Rockchip RK805 PMIC power key support"
 	depends on MFD_RK808
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 1072e0760c19..4b6118d313fe 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the input misc drivers.
 #
@@ -59,6 +60,7 @@ obj-$(CONFIG_INPUT_PM8XXX_VIBRATOR)	+= pm8xxx-vibrator.o
 obj-$(CONFIG_INPUT_PMIC8XXX_PWRKEY)	+= pmic8xxx-pwrkey.o
 obj-$(CONFIG_INPUT_POWERMATE)		+= powermate.o
 obj-$(CONFIG_INPUT_PWM_BEEPER)		+= pwm-beeper.o
+obj-$(CONFIG_INPUT_PWM_VIBRA)		+= pwm-vibra.o
 obj-$(CONFIG_INPUT_RB532_BUTTON)	+= rb532_button.o
 obj-$(CONFIG_INPUT_REGULATOR_HAPTIC)	+= regulator-haptic.o
 obj-$(CONFIG_INPUT_RETU_PWRBUTTON)	+= retu-pwrbutton.o
diff --git a/drivers/input/misc/axp20x-pek.c b/drivers/input/misc/axp20x-pek.c
index 6cee5adc3b5c..debeeaeb8812 100644
--- a/drivers/input/misc/axp20x-pek.c
+++ b/drivers/input/misc/axp20x-pek.c
@@ -403,6 +403,7 @@ static const struct platform_device_id axp_pek_id_match[] = {
 	},
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(platform, axp_pek_id_match);
 
 static struct platform_driver axp20x_pek_driver = {
 	.probe		= axp20x_pek_probe,
@@ -417,4 +418,3 @@ module_platform_driver(axp20x_pek_driver);
 MODULE_DESCRIPTION("axp20x Power Button");
 MODULE_AUTHOR("Carlo Caione <carlo@caione.org>");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:axp20x-pek");
diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c
index 6bf82ea8c918..ae473123583b 100644
--- a/drivers/input/misc/ims-pcu.c
+++ b/drivers/input/misc/ims-pcu.c
@@ -1635,13 +1635,25 @@ ims_pcu_get_cdc_union_desc(struct usb_interface *intf)
 		return NULL;
 	}
 
-	while (buflen > 0) {
+	while (buflen >= sizeof(*union_desc)) {
 		union_desc = (struct usb_cdc_union_desc *)buf;
 
+		if (union_desc->bLength > buflen) {
+			dev_err(&intf->dev, "Too large descriptor\n");
+			return NULL;
+		}
+
 		if (union_desc->bDescriptorType == USB_DT_CS_INTERFACE &&
 		    union_desc->bDescriptorSubType == USB_CDC_UNION_TYPE) {
 			dev_dbg(&intf->dev, "Found union header\n");
-			return union_desc;
+
+			if (union_desc->bLength >= sizeof(*union_desc))
+				return union_desc;
+
+			dev_err(&intf->dev,
+				"Union descriptor to short (%d vs %zd\n)",
+				union_desc->bLength, sizeof(*union_desc));
+			return NULL;
 		}
 
 		buflen -= union_desc->bLength;
diff --git a/drivers/input/misc/pwm-vibra.c b/drivers/input/misc/pwm-vibra.c
new file mode 100644
index 000000000000..55da191ae550
--- /dev/null
+++ b/drivers/input/misc/pwm-vibra.c
@@ -0,0 +1,267 @@
+/*
+ *  PWM vibrator driver
+ *
+ *  Copyright (C) 2017 Collabora Ltd.
+ *
+ *  Based on previous work from:
+ *  Copyright (C) 2012 Dmitry Torokhov <dmitry.torokhov@gmail.com>
+ *
+ *  Based on PWM beeper driver:
+ *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under  the terms of the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the License, or (at your
+ *  option) any later version.
+ */
+
+#include <linux/input.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/pwm.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+
+struct pwm_vibrator {
+	struct input_dev *input;
+	struct pwm_device *pwm;
+	struct pwm_device *pwm_dir;
+	struct regulator *vcc;
+
+	struct work_struct play_work;
+	u16 level;
+	u32 direction_duty_cycle;
+};
+
+static int pwm_vibrator_start(struct pwm_vibrator *vibrator)
+{
+	struct device *pdev = vibrator->input->dev.parent;
+	struct pwm_state state;
+	int err;
+
+	err = regulator_enable(vibrator->vcc);
+	if (err) {
+		dev_err(pdev, "failed to enable regulator: %d", err);
+		return err;
+	}
+
+	pwm_get_state(vibrator->pwm, &state);
+	pwm_set_relative_duty_cycle(&state, vibrator->level, 0xffff);
+	state.enabled = true;
+
+	err = pwm_apply_state(vibrator->pwm, &state);
+	if (err) {
+		dev_err(pdev, "failed to apply pwm state: %d", err);
+		return err;
+	}
+
+	if (vibrator->pwm_dir) {
+		pwm_get_state(vibrator->pwm_dir, &state);
+		state.duty_cycle = vibrator->direction_duty_cycle;
+		state.enabled = true;
+
+		err = pwm_apply_state(vibrator->pwm_dir, &state);
+		if (err) {
+			dev_err(pdev, "failed to apply dir-pwm state: %d", err);
+			pwm_disable(vibrator->pwm);
+			return err;
+		}
+	}
+
+	return 0;
+}
+
+static void pwm_vibrator_stop(struct pwm_vibrator *vibrator)
+{
+	regulator_disable(vibrator->vcc);
+
+	if (vibrator->pwm_dir)
+		pwm_disable(vibrator->pwm_dir);
+	pwm_disable(vibrator->pwm);
+}
+
+static void pwm_vibrator_play_work(struct work_struct *work)
+{
+	struct pwm_vibrator *vibrator = container_of(work,
+					struct pwm_vibrator, play_work);
+
+	if (vibrator->level)
+		pwm_vibrator_start(vibrator);
+	else
+		pwm_vibrator_stop(vibrator);
+}
+
+static int pwm_vibrator_play_effect(struct input_dev *dev, void *data,
+				    struct ff_effect *effect)
+{
+	struct pwm_vibrator *vibrator = input_get_drvdata(dev);
+
+	vibrator->level = effect->u.rumble.strong_magnitude;
+	if (!vibrator->level)
+		vibrator->level = effect->u.rumble.weak_magnitude;
+
+	schedule_work(&vibrator->play_work);
+
+	return 0;
+}
+
+static void pwm_vibrator_close(struct input_dev *input)
+{
+	struct pwm_vibrator *vibrator = input_get_drvdata(input);
+
+	cancel_work_sync(&vibrator->play_work);
+	pwm_vibrator_stop(vibrator);
+}
+
+static int pwm_vibrator_probe(struct platform_device *pdev)
+{
+	struct pwm_vibrator *vibrator;
+	struct pwm_state state;
+	int err;
+
+	vibrator = devm_kzalloc(&pdev->dev, sizeof(*vibrator), GFP_KERNEL);
+	if (!vibrator)
+		return -ENOMEM;
+
+	vibrator->input = devm_input_allocate_device(&pdev->dev);
+	if (!vibrator->input)
+		return -ENOMEM;
+
+	vibrator->vcc = devm_regulator_get(&pdev->dev, "vcc");
+	err = PTR_ERR_OR_ZERO(vibrator->vcc);
+	if (err) {
+		if (err != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Failed to request regulator: %d",
+				err);
+		return err;
+	}
+
+	vibrator->pwm = devm_pwm_get(&pdev->dev, "enable");
+	err = PTR_ERR_OR_ZERO(vibrator->pwm);
+	if (err) {
+		if (err != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "Failed to request main pwm: %d",
+				err);
+		return err;
+	}
+
+	INIT_WORK(&vibrator->play_work, pwm_vibrator_play_work);
+
+	/* Sync up PWM state and ensure it is off. */
+	pwm_init_state(vibrator->pwm, &state);
+	state.enabled = false;
+	err = pwm_apply_state(vibrator->pwm, &state);
+	if (err) {
+		dev_err(&pdev->dev, "failed to apply initial PWM state: %d",
+			err);
+		return err;
+	}
+
+	vibrator->pwm_dir = devm_pwm_get(&pdev->dev, "direction");
+	err = PTR_ERR_OR_ZERO(vibrator->pwm_dir);
+	switch (err) {
+	case 0:
+		/* Sync up PWM state and ensure it is off. */
+		pwm_init_state(vibrator->pwm_dir, &state);
+		state.enabled = false;
+		err = pwm_apply_state(vibrator->pwm_dir, &state);
+		if (err) {
+			dev_err(&pdev->dev, "failed to apply initial PWM state: %d",
+				err);
+			return err;
+		}
+
+		vibrator->direction_duty_cycle =
+			pwm_get_period(vibrator->pwm_dir) / 2;
+		device_property_read_u32(&pdev->dev, "direction-duty-cycle-ns",
+					 &vibrator->direction_duty_cycle);
+		break;
+
+	case -ENODATA:
+		/* Direction PWM is optional */
+		vibrator->pwm_dir = NULL;
+		break;
+
+	default:
+		dev_err(&pdev->dev, "Failed to request direction pwm: %d", err);
+		/* Fall through */
+
+	case -EPROBE_DEFER:
+		return err;
+	}
+
+	vibrator->input->name = "pwm-vibrator";
+	vibrator->input->id.bustype = BUS_HOST;
+	vibrator->input->dev.parent = &pdev->dev;
+	vibrator->input->close = pwm_vibrator_close;
+
+	input_set_drvdata(vibrator->input, vibrator);
+	input_set_capability(vibrator->input, EV_FF, FF_RUMBLE);
+
+	err = input_ff_create_memless(vibrator->input, NULL,
+				      pwm_vibrator_play_effect);
+	if (err) {
+		dev_err(&pdev->dev, "Couldn't create FF dev: %d", err);
+		return err;
+	}
+
+	err = input_register_device(vibrator->input);
+	if (err) {
+		dev_err(&pdev->dev, "Couldn't register input dev: %d", err);
+		return err;
+	}
+
+	platform_set_drvdata(pdev, vibrator);
+
+	return 0;
+}
+
+static int __maybe_unused pwm_vibrator_suspend(struct device *dev)
+{
+	struct pwm_vibrator *vibrator = dev_get_drvdata(dev);
+
+	cancel_work_sync(&vibrator->play_work);
+	if (vibrator->level)
+		pwm_vibrator_stop(vibrator);
+
+	return 0;
+}
+
+static int __maybe_unused pwm_vibrator_resume(struct device *dev)
+{
+	struct pwm_vibrator *vibrator = dev_get_drvdata(dev);
+
+	if (vibrator->level)
+		pwm_vibrator_start(vibrator);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(pwm_vibrator_pm_ops,
+			 pwm_vibrator_suspend, pwm_vibrator_resume);
+
+#ifdef CONFIG_OF
+static const struct of_device_id pwm_vibra_dt_match_table[] = {
+	{ .compatible = "pwm-vibrator" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, pwm_vibra_dt_match_table);
+#endif
+
+static struct platform_driver pwm_vibrator_driver = {
+	.probe	= pwm_vibrator_probe,
+	.driver	= {
+		.name	= "pwm-vibrator",
+		.pm	= &pwm_vibrator_pm_ops,
+		.of_match_table = of_match_ptr(pwm_vibra_dt_match_table),
+	},
+};
+module_platform_driver(pwm_vibrator_driver);
+
+MODULE_AUTHOR("Sebastian Reichel <sre@kernel.org>");
+MODULE_DESCRIPTION("PWM vibrator driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pwm-vibrator");
diff --git a/drivers/input/misc/regulator-haptic.c b/drivers/input/misc/regulator-haptic.c
index 2e8f801932be..a1db1e5040dc 100644
--- a/drivers/input/misc/regulator-haptic.c
+++ b/drivers/input/misc/regulator-haptic.c
@@ -233,7 +233,7 @@ static int __maybe_unused regulator_haptic_resume(struct device *dev)
 
 	haptic->suspended = false;
 
-	magnitude = ACCESS_ONCE(haptic->magnitude);
+	magnitude = READ_ONCE(haptic->magnitude);
 	if (magnitude)
 		regulator_haptic_set_voltage(haptic, magnitude);
 
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index 022be0e22eba..443151de90c6 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -98,14 +98,15 @@ static int uinput_request_reserve_slot(struct uinput_device *udev,
 					uinput_request_alloc_id(udev, request));
 }
 
-static void uinput_request_done(struct uinput_device *udev,
-				struct uinput_request *request)
+static void uinput_request_release_slot(struct uinput_device *udev,
+					unsigned int id)
 {
 	/* Mark slot as available */
-	udev->requests[request->id] = NULL;
-	wake_up(&udev->requests_waitq);
+	spin_lock(&udev->requests_lock);
+	udev->requests[id] = NULL;
+	spin_unlock(&udev->requests_lock);
 
-	complete(&request->done);
+	wake_up(&udev->requests_waitq);
 }
 
 static int uinput_request_send(struct uinput_device *udev,
@@ -138,20 +139,22 @@ static int uinput_request_send(struct uinput_device *udev,
 static int uinput_request_submit(struct uinput_device *udev,
 				 struct uinput_request *request)
 {
-	int error;
+	int retval;
 
-	error = uinput_request_reserve_slot(udev, request);
-	if (error)
-		return error;
+	retval = uinput_request_reserve_slot(udev, request);
+	if (retval)
+		return retval;
 
-	error = uinput_request_send(udev, request);
-	if (error) {
-		uinput_request_done(udev, request);
-		return error;
-	}
+	retval = uinput_request_send(udev, request);
+	if (retval)
+		goto out;
 
 	wait_for_completion(&request->done);
-	return request->retval;
+	retval = request->retval;
+
+ out:
+	uinput_request_release_slot(udev, request->id);
+	return retval;
 }
 
 /*
@@ -169,7 +172,7 @@ static void uinput_flush_requests(struct uinput_device *udev)
 		request = udev->requests[i];
 		if (request) {
 			request->retval = -ENODEV;
-			uinput_request_done(udev, request);
+			complete(&request->done);
 		}
 	}
 
@@ -230,6 +233,18 @@ static int uinput_dev_erase_effect(struct input_dev *dev, int effect_id)
 	return uinput_request_submit(udev, &request);
 }
 
+static int uinput_dev_flush(struct input_dev *dev, struct file *file)
+{
+	/*
+	 * If we are called with file == NULL that means we are tearing
+	 * down the device, and therefore we can not handle FF erase
+	 * requests: either we are handling UI_DEV_DESTROY (and holding
+	 * the udev->mutex), or the file descriptor is closed and there is
+	 * nobody on the other side anymore.
+	 */
+	return file ? input_ff_flush(dev, file) : 0;
+}
+
 static void uinput_destroy_device(struct uinput_device *udev)
 {
 	const char *name, *phys;
@@ -297,6 +312,12 @@ static int uinput_create_device(struct uinput_device *udev)
 		dev->ff->playback = uinput_dev_playback;
 		dev->ff->set_gain = uinput_dev_set_gain;
 		dev->ff->set_autocenter = uinput_dev_set_autocenter;
+		/*
+		 * The standard input_ff_flush() implementation does
+		 * not quite work for uinput as we can't reasonably
+		 * handle FF requests during device teardown.
+		 */
+		dev->flush = uinput_dev_flush;
 	}
 
 	error = input_register_device(udev->dev);
@@ -939,7 +960,7 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 			}
 
 			req->retval = ff_up.retval;
-			uinput_request_done(udev, req);
+			complete(&req->done);
 			goto out;
 
 		case UI_END_FF_ERASE:
@@ -955,7 +976,7 @@ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
 			}
 
 			req->retval = ff_erase.retval;
-			uinput_request_done(udev, req);
+			complete(&req->done);
 			goto out;
 	}
 
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 56bf0ad877c6..e49f08565076 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the mouse drivers.
 #
diff --git a/drivers/input/mouse/byd.h b/drivers/input/mouse/byd.h
index d6c120cf36cd..8cb90d904186 100644
--- a/drivers/input/mouse/byd.h
+++ b/drivers/input/mouse/byd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BYD_H
 #define _BYD_H
 
diff --git a/drivers/input/mouse/cypress_ps2.h b/drivers/input/mouse/cypress_ps2.h
index 81f68aaed7c8..1eaddd818004 100644
--- a/drivers/input/mouse/cypress_ps2.h
+++ b/drivers/input/mouse/cypress_ps2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CYPRESS_PS2_H
 #define _CYPRESS_PS2_H
 
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 0e761d079dc4..d6135900da64 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1258,6 +1258,8 @@ static const struct acpi_device_id elan_acpi_id[] = {
 	{ "ELAN0605", 0 },
 	{ "ELAN0609", 0 },
 	{ "ELAN060B", 0 },
+	{ "ELAN060C", 0 },
+	{ "ELAN0611", 0 },
 	{ "ELAN1000", 0 },
 	{ }
 };
diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c
index 15b1330606c1..e19eb60b3d2f 100644
--- a/drivers/input/mouse/elan_i2c_i2c.c
+++ b/drivers/input/mouse/elan_i2c_i2c.c
@@ -598,7 +598,7 @@ static int elan_i2c_write_fw_block(struct i2c_client *client,
 	}
 
 	/* Wait for F/W to update one page ROM data. */
-	msleep(20);
+	msleep(35);
 
 	error = elan_i2c_read_cmd(client, ETP_I2C_IAP_CTRL_CMD, val);
 	if (error) {
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 6428d6f4d568..b84cd978fce2 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -700,7 +700,9 @@ static int elantech_debounce_check_v2(struct psmouse *psmouse)
          * When we encounter packet that matches this exactly, it means the
          * hardware is in debounce status. Just ignore the whole packet.
          */
-        const u8 debounce_packet[] = { 0x84, 0xff, 0xff, 0x02, 0xff, 0xff };
+	static const u8 debounce_packet[] = {
+		0x84, 0xff, 0xff, 0x02, 0xff, 0xff
+	};
         unsigned char *packet = psmouse->packet;
 
         return !memcmp(packet, debounce_packet, sizeof(debounce_packet));
@@ -741,7 +743,9 @@ static int elantech_packet_check_v2(struct psmouse *psmouse)
 static int elantech_packet_check_v3(struct psmouse *psmouse)
 {
 	struct elantech_data *etd = psmouse->private;
-	const u8 debounce_packet[] = { 0xc4, 0xff, 0xff, 0x02, 0xff, 0xff };
+	static const u8 debounce_packet[] = {
+		0xc4, 0xff, 0xff, 0x02, 0xff, 0xff
+	};
 	unsigned char *packet = psmouse->packet;
 
 	/*
diff --git a/drivers/input/mouse/hgpk.h b/drivers/input/mouse/hgpk.h
index dd686771cfe0..98b7b384229b 100644
--- a/drivers/input/mouse/hgpk.h
+++ b/drivers/input/mouse/hgpk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * OLPC HGPK (XO-1) touchpad PS/2 mouse driver
  */
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 38855e425f01..8cd453808cc7 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PSMOUSE_H
 #define _PSMOUSE_H
 
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 5af0b7d200bc..ee5466a374bf 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -1709,8 +1709,7 @@ static int synaptics_create_intertouch(struct psmouse *psmouse,
 		.sensor_pdata = {
 			.sensor_type = rmi_sensor_touchpad,
 			.axis_align.flip_y = true,
-			/* to prevent cursors jumps: */
-			.kernel_tracking = true,
+			.kernel_tracking = false,
 			.topbuttonpad = topbuttonpad,
 		},
 		.f30_data = {
diff --git a/drivers/input/mouse/vmmouse.c b/drivers/input/mouse/vmmouse.c
index 0f586780ceb4..1ae5c1ef3f5b 100644
--- a/drivers/input/mouse/vmmouse.c
+++ b/drivers/input/mouse/vmmouse.c
@@ -316,11 +316,9 @@ static int vmmouse_enable(struct psmouse *psmouse)
 /*
  * Array of supported hypervisors.
  */
-static const struct hypervisor_x86 *vmmouse_supported_hypervisors[] = {
-	&x86_hyper_vmware,
-#ifdef CONFIG_KVM_GUEST
-	&x86_hyper_kvm,
-#endif
+static enum x86_hypervisor_type vmmouse_supported_hypervisors[] = {
+	X86_HYPER_VMWARE,
+	X86_HYPER_KVM,
 };
 
 /**
@@ -331,7 +329,7 @@ static bool vmmouse_check_hypervisor(void)
 	int i;
 
 	for (i = 0; i < ARRAY_SIZE(vmmouse_supported_hypervisors); i++)
-		if (vmmouse_supported_hypervisors[i] == x86_hyper)
+		if (vmmouse_supported_hypervisors[i] == x86_hyper_type)
 			return true;
 
 	return false;
diff --git a/drivers/input/rmi4/Makefile b/drivers/input/rmi4/Makefile
index 9aaac3dd8613..f17631656987 100644
--- a/drivers/input/rmi4/Makefile
+++ b/drivers/input/rmi4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RMI4_CORE) += rmi_core.o
 rmi_core-y := rmi_bus.o rmi_driver.o rmi_f01.o
 
diff --git a/drivers/input/rmi4/rmi_f30.c b/drivers/input/rmi4/rmi_f30.c
index 34dfee555b20..82e0f0d43d55 100644
--- a/drivers/input/rmi4/rmi_f30.c
+++ b/drivers/input/rmi4/rmi_f30.c
@@ -232,9 +232,10 @@ static int rmi_f30_map_gpios(struct rmi_function *fn,
 	unsigned int trackstick_button = BTN_LEFT;
 	bool button_mapped = false;
 	int i;
+	int button_count = min_t(u8, f30->gpioled_count, TRACKSTICK_RANGE_END);
 
 	f30->gpioled_key_map = devm_kcalloc(&fn->dev,
-					    f30->gpioled_count,
+					    button_count,
 					    sizeof(f30->gpioled_key_map[0]),
 					    GFP_KERNEL);
 	if (!f30->gpioled_key_map) {
@@ -242,7 +243,7 @@ static int rmi_f30_map_gpios(struct rmi_function *fn,
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < f30->gpioled_count; i++) {
+	for (i = 0; i < button_count; i++) {
 		if (!rmi_f30_is_valid_button(i, f30->ctrl))
 			continue;
 
diff --git a/drivers/input/rmi4/rmi_smbus.c b/drivers/input/rmi4/rmi_smbus.c
index 225025a0940c..b6ccf39c6a7b 100644
--- a/drivers/input/rmi4/rmi_smbus.c
+++ b/drivers/input/rmi4/rmi_smbus.c
@@ -312,7 +312,7 @@ static int rmi_smb_probe(struct i2c_client *client,
 	rmi_smb->xport.dev = &client->dev;
 	rmi_smb->xport.pdata = *pdata;
 	rmi_smb->xport.pdata.irq = client->irq;
-	rmi_smb->xport.proto_name = "smb2";
+	rmi_smb->xport.proto_name = "smb";
 	rmi_smb->xport.ops = &rmi_smb_ops;
 
 	smbus_version = rmi_smb_get_version(rmi_smb);
@@ -322,7 +322,7 @@ static int rmi_smb_probe(struct i2c_client *client,
 	rmi_dbg(RMI_DEBUG_XPORT, &client->dev, "Smbus version is %d",
 		smbus_version);
 
-	if (smbus_version != 2) {
+	if (smbus_version != 2 && smbus_version != 3) {
 		dev_err(&client->dev, "Unrecognized SMB version %d\n",
 				smbus_version);
 		return -ENODEV;
diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile
index 767bd9b6e1ed..a3ca07621542 100644
--- a/drivers/input/serio/Makefile
+++ b/drivers/input/serio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the input core drivers.
 #
diff --git a/drivers/input/serio/i8042-sparcio.h b/drivers/input/serio/i8042-sparcio.h
index 6231d63860ee..796289846204 100644
--- a/drivers/input/serio/i8042-sparcio.h
+++ b/drivers/input/serio/i8042-sparcio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _I8042_SPARCIO_H
 #define _I8042_SPARCIO_H
 
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index ae81e57e13b9..6cbbdc6e9687 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -840,6 +840,13 @@ static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = {
 		},
 	},
 	{
+		/* Gigabyte P57 - Elantech touchpad */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "P57"),
+		},
+	},
+	{
 		/* Schenker XMG C504 - Elantech touchpad */
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "XMG"),
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index bb0349fa64bc..fd03e55768c9 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -255,6 +255,7 @@ void sparse_keymap_report_entry(struct input_dev *dev, const struct key_entry *k
 
 	case KE_VSW:
 		input_report_switch(dev, ke->sw.code, value);
+		input_sync(dev);
 		break;
 	}
 }
diff --git a/drivers/input/tablet/Makefile b/drivers/input/tablet/Makefile
index 200fc4e11987..8279ccc18b0a 100644
--- a/drivers/input/tablet/Makefile
+++ b/drivers/input/tablet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the tablet drivers
 #
diff --git a/drivers/input/tablet/gtco.c b/drivers/input/tablet/gtco.c
index b796e891e2ee..4b8b9d7aa75e 100644
--- a/drivers/input/tablet/gtco.c
+++ b/drivers/input/tablet/gtco.c
@@ -230,13 +230,17 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report,
 
 	/* Walk  this report and pull out the info we need */
 	while (i < length) {
-		prefix = report[i];
-
-		/* Skip over prefix */
-		i++;
+		prefix = report[i++];
 
 		/* Determine data size and save the data in the proper variable */
-		size = PREF_SIZE(prefix);
+		size = (1U << PREF_SIZE(prefix)) >> 1;
+		if (i + size > length) {
+			dev_err(ddev,
+				"Not enough data (need %d, have %d)\n",
+				i + size, length);
+			break;
+		}
+
 		switch (size) {
 		case 1:
 			data = report[i];
@@ -244,8 +248,7 @@ static void parse_hid_report_descriptor(struct gtco *device, char * report,
 		case 2:
 			data16 = get_unaligned_le16(&report[i]);
 			break;
-		case 3:
-			size = 4;
+		case 4:
 			data32 = get_unaligned_le32(&report[i]);
 			break;
 		}
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 6badce87037b..850c1562555a 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the touchscreen drivers.
 #
diff --git a/drivers/input/touchscreen/ar1021_i2c.c b/drivers/input/touchscreen/ar1021_i2c.c
index f9dcbd63e598..b35b640fdadf 100644
--- a/drivers/input/touchscreen/ar1021_i2c.c
+++ b/drivers/input/touchscreen/ar1021_i2c.c
@@ -117,6 +117,7 @@ static int ar1021_i2c_probe(struct i2c_client *client,
 	input->open = ar1021_i2c_open;
 	input->close = ar1021_i2c_close;
 
+	__set_bit(INPUT_PROP_DIRECT, input->propbit);
 	input_set_capability(input, EV_KEY, BTN_TOUCH);
 	input_set_abs_params(input, ABS_X, 0, AR1021_MAX_X, 0, 0);
 	input_set_abs_params(input, ABS_Y, 0, AR1021_MAX_Y, 0, 0);
diff --git a/drivers/input/touchscreen/edt-ft5x06.c b/drivers/input/touchscreen/edt-ft5x06.c
index f872817e81e4..5bf63f76ddda 100644
--- a/drivers/input/touchscreen/edt-ft5x06.c
+++ b/drivers/input/touchscreen/edt-ft5x06.c
@@ -593,7 +593,7 @@ static int edt_ft5x06_work_mode(struct edt_ft5x06_ts_data *tsdata)
 				  tsdata->gain);
 	edt_ft5x06_register_write(tsdata, reg_addr->reg_offset,
 				  tsdata->offset);
-	if (reg_addr->reg_report_rate)
+	if (reg_addr->reg_report_rate != NO_REGISTER)
 		edt_ft5x06_register_write(tsdata, reg_addr->reg_report_rate,
 				  tsdata->report_rate);
 
@@ -874,6 +874,7 @@ edt_ft5x06_ts_set_regs(struct edt_ft5x06_ts_data *tsdata)
 
 	case M09:
 		reg_addr->reg_threshold = M09_REGISTER_THRESHOLD;
+		reg_addr->reg_report_rate = NO_REGISTER;
 		reg_addr->reg_gain = M09_REGISTER_GAIN;
 		reg_addr->reg_offset = M09_REGISTER_OFFSET;
 		reg_addr->reg_num_x = M09_REGISTER_NUM_X;
diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index 240b16f3ee97..b3bbad7d2282 100644
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -72,6 +72,9 @@ struct goodix_ts_data {
 #define GOODIX_REG_CONFIG_DATA		0x8047
 #define GOODIX_REG_ID			0x8140
 
+#define GOODIX_BUFFER_STATUS_READY	BIT(7)
+#define GOODIX_BUFFER_STATUS_TIMEOUT	20
+
 #define RESOLUTION_LOC		1
 #define MAX_CONTACTS_LOC	5
 #define TRIGGER_LOC		6
@@ -195,35 +198,53 @@ static int goodix_get_cfg_len(u16 id)
 
 static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)
 {
+	unsigned long max_timeout;
 	int touch_num;
 	int error;
 
-	error = goodix_i2c_read(ts->client, GOODIX_READ_COOR_ADDR, data,
-				GOODIX_CONTACT_SIZE + 1);
-	if (error) {
-		dev_err(&ts->client->dev, "I2C transfer error: %d\n", error);
-		return error;
-	}
+	/*
+	 * The 'buffer status' bit, which indicates that the data is valid, is
+	 * not set as soon as the interrupt is raised, but slightly after.
+	 * This takes around 10 ms to happen, so we poll for 20 ms.
+	 */
+	max_timeout = jiffies + msecs_to_jiffies(GOODIX_BUFFER_STATUS_TIMEOUT);
+	do {
+		error = goodix_i2c_read(ts->client, GOODIX_READ_COOR_ADDR,
+					data, GOODIX_CONTACT_SIZE + 1);
+		if (error) {
+			dev_err(&ts->client->dev, "I2C transfer error: %d\n",
+					error);
+			return error;
+		}
 
-	if (!(data[0] & 0x80))
-		return -EAGAIN;
+		if (data[0] & GOODIX_BUFFER_STATUS_READY) {
+			touch_num = data[0] & 0x0f;
+			if (touch_num > ts->max_touch_num)
+				return -EPROTO;
+
+			if (touch_num > 1) {
+				data += 1 + GOODIX_CONTACT_SIZE;
+				error = goodix_i2c_read(ts->client,
+						GOODIX_READ_COOR_ADDR +
+							1 + GOODIX_CONTACT_SIZE,
+						data,
+						GOODIX_CONTACT_SIZE *
+							(touch_num - 1));
+				if (error)
+					return error;
+			}
+
+			return touch_num;
+		}
 
-	touch_num = data[0] & 0x0f;
-	if (touch_num > ts->max_touch_num)
-		return -EPROTO;
-
-	if (touch_num > 1) {
-		data += 1 + GOODIX_CONTACT_SIZE;
-		error = goodix_i2c_read(ts->client,
-					GOODIX_READ_COOR_ADDR +
-						1 + GOODIX_CONTACT_SIZE,
-					data,
-					GOODIX_CONTACT_SIZE * (touch_num - 1));
-		if (error)
-			return error;
-	}
+		usleep_range(1000, 2000); /* Poll every 1 - 2 ms */
+	} while (time_before(jiffies, max_timeout));
 
-	return touch_num;
+	/*
+	 * The Goodix panel will send spurious interrupts after a
+	 * 'finger up' event, which will always cause a timeout.
+	 */
+	return 0;
 }
 
 static void goodix_ts_report_touch(struct goodix_ts_data *ts, u8 *coor_data)
@@ -267,6 +288,12 @@ static void goodix_process_events(struct goodix_ts_data *ts)
 	if (touch_num < 0)
 		return;
 
+	/*
+	 * Bit 4 of the first byte reports the status of the capacitive
+	 * Windows/Home button.
+	 */
+	input_report_key(ts->input_dev, KEY_LEFTMETA, point_data[0] & BIT(4));
+
 	for (i = 0; i < touch_num; i++)
 		goodix_ts_report_touch(ts,
 				&point_data[1 + GOODIX_CONTACT_SIZE * i]);
@@ -612,6 +639,9 @@ static int goodix_request_input_dev(struct goodix_ts_data *ts)
 	ts->input_dev->id.product = ts->id;
 	ts->input_dev->id.version = ts->version;
 
+	/* Capacitive Windows/Home button on some devices */
+	input_set_capability(ts->input_dev, EV_KEY, KEY_LEFTMETA);
+
 	error = input_register_device(ts->input_dev);
 	if (error) {
 		dev_err(&ts->client->dev,
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 92e2243fb77d..8fd909285877 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -219,7 +219,7 @@ static struct isa_driver htcpen_isa_driver = {
 	}
 };
 
-static struct dmi_system_id htcshift_dmi_table[] __initdata = {
+static const struct dmi_system_id htcshift_dmi_table[] __initconst = {
 	{
 		.ident = "Shift",
 		.matches = {
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 3b3db8c868e0..d3265b6b58b8 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -145,7 +145,7 @@ static void touch_timer_fire(unsigned long data)
 	}
 }
 
-static DEFINE_TIMER(touch_timer, touch_timer_fire, 0, 0);
+static DEFINE_TIMER(touch_timer, touch_timer_fire);
 
 /**
  * stylus_irq - touchscreen stylus event interrupt
diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
index 157fdb4bb2e8..8c6c6178ec12 100644
--- a/drivers/input/touchscreen/stmfts.c
+++ b/drivers/input/touchscreen/stmfts.c
@@ -663,12 +663,10 @@ static int stmfts_probe(struct i2c_client *client,
 	sdata->input->open = stmfts_input_open;
 	sdata->input->close = stmfts_input_close;
 
+	input_set_capability(sdata->input, EV_ABS, ABS_MT_POSITION_X);
+	input_set_capability(sdata->input, EV_ABS, ABS_MT_POSITION_Y);
 	touchscreen_parse_properties(sdata->input, true, &sdata->prop);
 
-	input_set_abs_params(sdata->input, ABS_MT_POSITION_X, 0,
-						sdata->prop.max_x, 0, 0);
-	input_set_abs_params(sdata->input, ABS_MT_POSITION_Y, 0,
-						sdata->prop.max_y, 0, 0);
 	input_set_abs_params(sdata->input, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
 	input_set_abs_params(sdata->input, ABS_MT_TOUCH_MINOR, 0, 255, 0, 0);
 	input_set_abs_params(sdata->input, ABS_MT_ORIENTATION, 0, 255, 0, 0);
diff --git a/drivers/input/touchscreen/surface3_spi.c b/drivers/input/touchscreen/surface3_spi.c
index e12fb9b63f31..5db0f1c4ef38 100644
--- a/drivers/input/touchscreen/surface3_spi.c
+++ b/drivers/input/touchscreen/surface3_spi.c
@@ -173,7 +173,7 @@ static void surface3_spi_process_pen(struct surface3_ts_data *ts_data, u8 *data)
 
 static void surface3_spi_process(struct surface3_ts_data *ts_data)
 {
-	const char header[] = {
+	static const char header[] = {
 		0xff, 0xff, 0xff, 0xff, 0xa5, 0x5a, 0xe7, 0x7e, 0x01
 	};
 	u8 *data = ts_data->rd_buf;
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index 7953381d939a..f1043ae71dcc 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -161,7 +161,7 @@ static void titsc_step_config(struct titsc *ts_dev)
 		break;
 	case 5:
 		config |= ts_dev->bit_xp | STEPCONFIG_INP_AN4 |
-				ts_dev->bit_xn | ts_dev->bit_yp;
+				STEPCONFIG_XNP | STEPCONFIG_YPN;
 		break;
 	case 8:
 		config |= ts_dev->bit_yp | STEPCONFIG_INP(ts_dev->inp_xp);
diff --git a/drivers/input/touchscreen/tsc2007_iio.c b/drivers/input/touchscreen/tsc2007_iio.c
index 27b25a9fce83..e27a956f5f2b 100644
--- a/drivers/input/touchscreen/tsc2007_iio.c
+++ b/drivers/input/touchscreen/tsc2007_iio.c
@@ -104,7 +104,6 @@ static int tsc2007_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info tsc2007_iio_info = {
 	.read_raw = tsc2007_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 int tsc2007_iio_configure(struct tsc2007 *ts)
diff --git a/drivers/input/touchscreen/tsc200x-core.c b/drivers/input/touchscreen/tsc200x-core.c
index 88ea5e1b72ae..abf27578beb1 100644
--- a/drivers/input/touchscreen/tsc200x-core.c
+++ b/drivers/input/touchscreen/tsc200x-core.c
@@ -531,6 +531,7 @@ int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
 
 	input_set_drvdata(input_dev, ts);
 
+	__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
 	input_set_capability(input_dev, EV_KEY, BTN_TOUCH);
 
 	input_set_abs_params(input_dev, ABS_X,
diff --git a/drivers/input/touchscreen/tsc200x-core.h b/drivers/input/touchscreen/tsc200x-core.h
index 49a63a3c6840..a43c08ccfd3d 100644
--- a/drivers/input/touchscreen/tsc200x-core.h
+++ b/drivers/input/touchscreen/tsc200x-core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TSC200X_CORE_H
 #define _TSC200X_CORE_H
 
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index c1e23cfc6155..1a86cbd9326f 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -414,7 +414,7 @@ static int __maybe_unused ucb1400_ts_suspend(struct device *dev)
 	mutex_lock(&idev->mutex);
 
 	if (idev->users)
-		ucb1400_ts_start(ucb);
+		ucb1400_ts_stop(ucb);
 
 	mutex_unlock(&idev->mutex);
 	return 0;
@@ -428,7 +428,7 @@ static int __maybe_unused ucb1400_ts_resume(struct device *dev)
 	mutex_lock(&idev->mutex);
 
 	if (idev->users)
-		ucb1400_ts_stop(ucb);
+		ucb1400_ts_start(ucb);
 
 	mutex_unlock(&idev->mutex);
 	return 0;
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 49bd2ab8c507..f3a21343e636 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -278,7 +278,7 @@ config EXYNOS_IOMMU_DEBUG
 config IPMMU_VMSA
 	bool "Renesas VMSA-compatible IPMMU"
 	depends on ARM || IOMMU_DMA
-	depends on ARCH_RENESAS || COMPILE_TEST
+	depends on ARCH_RENESAS || (COMPILE_TEST && !GENERIC_ATOMIC64)
 	select IOMMU_API
 	select IOMMU_IO_PGTABLE_LPAE
 	select ARM_DMA_USE_IOMMU
@@ -373,7 +373,8 @@ config MTK_IOMMU_V1
 config QCOM_IOMMU
 	# Note: iommu drivers cannot (yet?) be built as modules
 	bool "Qualcomm IOMMU Support"
-	depends on ARCH_QCOM || COMPILE_TEST
+	depends on ARCH_QCOM || (COMPILE_TEST && !GENERIC_ATOMIC64)
+	depends on HAS_DMA
 	select IOMMU_API
 	select IOMMU_IO_PGTABLE_LPAE
 	select ARM_DMA_USE_IOMMU
diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index b910aea813a1..1fb695854809 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IOMMU_API) += iommu.o
 obj-$(CONFIG_IOMMU_API) += iommu-traces.o
 obj-$(CONFIG_IOMMU_API) += iommu-sysfs.o
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 51f8215877f5..9c848e36f209 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2773,14 +2773,16 @@ int __init amd_iommu_init_api(void)
 
 int __init amd_iommu_init_dma_ops(void)
 {
-	swiotlb        = iommu_pass_through ? 1 : 0;
+	swiotlb        = (iommu_pass_through || sme_me_mask) ? 1 : 0;
 	iommu_detected = 1;
 
 	/*
 	 * In case we don't initialize SWIOTLB (actually the common case
-	 * when AMD IOMMU is enabled), make sure there are global
-	 * dma_ops set as a fall-back for devices not handled by this
-	 * driver (for example non-PCI devices).
+	 * when AMD IOMMU is enabled and SME is not active), make sure there
+	 * are global dma_ops set as a fall-back for devices not handled by
+	 * this driver (for example non-PCI devices). When SME is active,
+	 * make sure that swiotlb variable remains set so the global dma_ops
+	 * continue to be SWIOTLB.
 	 */
 	if (!swiotlb)
 		dma_ops = &nommu_dma_ops;
@@ -3046,6 +3048,7 @@ static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova,
 	mutex_unlock(&domain->api_lock);
 
 	domain_flush_tlb_pde(domain);
+	domain_flush_complete(domain);
 
 	return unmap_size;
 }
@@ -4170,16 +4173,26 @@ static void irq_remapping_free(struct irq_domain *domain, unsigned int virq,
 	irq_domain_free_irqs_common(domain, virq, nr_irqs);
 }
 
-static void irq_remapping_activate(struct irq_domain *domain,
-				   struct irq_data *irq_data)
+static void amd_ir_update_irte(struct irq_data *irqd, struct amd_iommu *iommu,
+			       struct amd_ir_data *ir_data,
+			       struct irq_2_irte *irte_info,
+			       struct irq_cfg *cfg);
+
+static int irq_remapping_activate(struct irq_domain *domain,
+				  struct irq_data *irq_data, bool early)
 {
 	struct amd_ir_data *data = irq_data->chip_data;
 	struct irq_2_irte *irte_info = &data->irq_2_irte;
 	struct amd_iommu *iommu = amd_iommu_rlookup_table[irte_info->devid];
+	struct irq_cfg *cfg = irqd_cfg(irq_data);
 
-	if (iommu)
-		iommu->irte_ops->activate(data->entry, irte_info->devid,
-					  irte_info->index);
+	if (!iommu)
+		return 0;
+
+	iommu->irte_ops->activate(data->entry, irte_info->devid,
+				  irte_info->index);
+	amd_ir_update_irte(irq_data, iommu, data, irte_info, cfg);
+	return 0;
 }
 
 static void irq_remapping_deactivate(struct irq_domain *domain,
@@ -4266,6 +4279,22 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info)
 	return modify_irte_ga(irte_info->devid, irte_info->index, irte, ir_data);
 }
 
+
+static void amd_ir_update_irte(struct irq_data *irqd, struct amd_iommu *iommu,
+			       struct amd_ir_data *ir_data,
+			       struct irq_2_irte *irte_info,
+			       struct irq_cfg *cfg)
+{
+
+	/*
+	 * Atomically updates the IRTE with the new destination, vector
+	 * and flushes the interrupt entry cache.
+	 */
+	iommu->irte_ops->set_affinity(ir_data->entry, irte_info->devid,
+				      irte_info->index, cfg->vector,
+				      cfg->dest_apicid);
+}
+
 static int amd_ir_set_affinity(struct irq_data *data,
 			       const struct cpumask *mask, bool force)
 {
@@ -4283,13 +4312,7 @@ static int amd_ir_set_affinity(struct irq_data *data,
 	if (ret < 0 || ret == IRQ_SET_MASK_OK_DONE)
 		return ret;
 
-	/*
-	 * Atomically updates the IRTE with the new destination, vector
-	 * and flushes the interrupt entry cache.
-	 */
-	iommu->irte_ops->set_affinity(ir_data->entry, irte_info->devid,
-			    irte_info->index, cfg->vector, cfg->dest_apicid);
-
+	amd_ir_update_irte(data, iommu, ir_data, irte_info, cfg);
 	/*
 	 * After this point, all the interrupts will start arriving
 	 * at the new destination. So, time to cleanup the previous
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 382de42b8359..6fe2d0346073 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -874,7 +874,7 @@ static bool copy_device_table(void)
 		hi = readl(iommu->mmio_base + MMIO_DEV_TABLE_OFFSET + 4);
 		entry = (((u64) hi) << 32) + lo;
 		if (last_entry && last_entry != entry) {
-			pr_err("IOMMU:%d should use the same dev table as others!/n",
+			pr_err("IOMMU:%d should use the same dev table as others!\n",
 				iommu->index);
 			return false;
 		}
@@ -882,7 +882,7 @@ static bool copy_device_table(void)
 
 		old_devtb_size = ((entry & ~PAGE_MASK) + 1) << 12;
 		if (old_devtb_size != dev_table_size) {
-			pr_err("The device table size of IOMMU:%d is not expected!/n",
+			pr_err("The device table size of IOMMU:%d is not expected!\n",
 				iommu->index);
 			return false;
 		}
@@ -890,7 +890,7 @@ static bool copy_device_table(void)
 
 	old_devtb_phys = entry & PAGE_MASK;
 	if (old_devtb_phys >= 0x100000000ULL) {
-		pr_err("The address of old device table is above 4G, not trustworthy!/n");
+		pr_err("The address of old device table is above 4G, not trustworthy!\n");
 		return false;
 	}
 	old_devtb = memremap(old_devtb_phys, dev_table_size, MEMREMAP_WB);
@@ -901,7 +901,7 @@ static bool copy_device_table(void)
 	old_dev_tbl_cpy = (void *)__get_free_pages(gfp_flag,
 				get_order(dev_table_size));
 	if (old_dev_tbl_cpy == NULL) {
-		pr_err("Failed to allocate memory for copying old device table!/n");
+		pr_err("Failed to allocate memory for copying old device table!\n");
 		return false;
 	}
 
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index ca5ebaeafd6a..57c920c1372d 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -497,7 +497,7 @@ static int dmar_parse_one_rhsa(struct acpi_dmar_header *header, void *arg)
 #define	dmar_parse_one_rhsa		dmar_res_noop
 #endif
 
-static void __init
+static void
 dmar_table_print_dmar_entry(struct acpi_dmar_header *header)
 {
 	struct acpi_dmar_hardware_unit *drhd;
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index f596fcc32898..25c2c75f5332 100644
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -709,7 +709,7 @@ static const struct dev_pm_ops sysmmu_pm_ops = {
 				pm_runtime_force_resume)
 };
 
-static const struct of_device_id sysmmu_of_match[] __initconst = {
+static const struct of_device_id sysmmu_of_match[] = {
 	{ .compatible	= "samsung,exynos-sysmmu", },
 	{ },
 };
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index a5b89f6bcdbf..76a193c7fcfc 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #define pr_fmt(fmt)     "DMAR-IR: " fmt
 
@@ -1121,6 +1122,24 @@ struct irq_remap_ops intel_irq_remap_ops = {
 	.get_irq_domain		= intel_get_irq_domain,
 };
 
+static void intel_ir_reconfigure_irte(struct irq_data *irqd, bool force)
+{
+	struct intel_ir_data *ir_data = irqd->chip_data;
+	struct irte *irte = &ir_data->irte_entry;
+	struct irq_cfg *cfg = irqd_cfg(irqd);
+
+	/*
+	 * Atomically updates the IRTE with the new destination, vector
+	 * and flushes the interrupt entry cache.
+	 */
+	irte->vector = cfg->vector;
+	irte->dest_id = IRTE_DEST(cfg->dest_apicid);
+
+	/* Update the hardware only if the interrupt is in remapped mode. */
+	if (!force || ir_data->irq_2_iommu.mode == IRQ_REMAPPING)
+		modify_irte(&ir_data->irq_2_iommu, irte);
+}
+
 /*
  * Migrate the IO-APIC irq in the presence of intr-remapping.
  *
@@ -1139,27 +1158,15 @@ static int
 intel_ir_set_affinity(struct irq_data *data, const struct cpumask *mask,
 		      bool force)
 {
-	struct intel_ir_data *ir_data = data->chip_data;
-	struct irte *irte = &ir_data->irte_entry;
-	struct irq_cfg *cfg = irqd_cfg(data);
 	struct irq_data *parent = data->parent_data;
+	struct irq_cfg *cfg = irqd_cfg(data);
 	int ret;
 
 	ret = parent->chip->irq_set_affinity(parent, mask, force);
 	if (ret < 0 || ret == IRQ_SET_MASK_OK_DONE)
 		return ret;
 
-	/*
-	 * Atomically updates the IRTE with the new destination, vector
-	 * and flushes the interrupt entry cache.
-	 */
-	irte->vector = cfg->vector;
-	irte->dest_id = IRTE_DEST(cfg->dest_apicid);
-
-	/* Update the hardware only if the interrupt is in remapped mode. */
-	if (ir_data->irq_2_iommu.mode == IRQ_REMAPPING)
-		modify_irte(&ir_data->irq_2_iommu, irte);
-
+	intel_ir_reconfigure_irte(data, false);
 	/*
 	 * After this point, all the interrupts will start arriving
 	 * at the new destination. So, time to cleanup the previous
@@ -1389,12 +1396,11 @@ static void intel_irq_remapping_free(struct irq_domain *domain,
 	irq_domain_free_irqs_common(domain, virq, nr_irqs);
 }
 
-static void intel_irq_remapping_activate(struct irq_domain *domain,
-					 struct irq_data *irq_data)
+static int intel_irq_remapping_activate(struct irq_domain *domain,
+					struct irq_data *irq_data, bool early)
 {
-	struct intel_ir_data *data = irq_data->chip_data;
-
-	modify_irte(&data->irq_2_iommu, &data->irte_entry);
+	intel_ir_reconfigure_irte(irq_data, true);
+	return 0;
 }
 
 static void intel_irq_remapping_deactivate(struct irq_domain *domain,
diff --git a/drivers/iommu/io-pgtable-arm-v7s.c b/drivers/iommu/io-pgtable-arm-v7s.c
index d665d0dc16e8..6961fc393f0b 100644
--- a/drivers/iommu/io-pgtable-arm-v7s.c
+++ b/drivers/iommu/io-pgtable-arm-v7s.c
@@ -245,7 +245,7 @@ static void __arm_v7s_free_table(void *table, int lvl,
 static void __arm_v7s_pte_sync(arm_v7s_iopte *ptep, int num_entries,
 			       struct io_pgtable_cfg *cfg)
 {
-	if (!(cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA))
+	if (cfg->quirks & IO_PGTABLE_QUIRK_NO_DMA)
 		return;
 
 	dma_sync_single_for_device(cfg->iommu_dev, __arm_v7s_dma_addr(ptep),
diff --git a/drivers/iommu/io-pgtable.h b/drivers/iommu/io-pgtable.h
index a3e667077b14..cd2e1eafffe6 100644
--- a/drivers/iommu/io-pgtable.h
+++ b/drivers/iommu/io-pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IO_PGTABLE_H
 #define __IO_PGTABLE_H
 #include <linux/bitops.h>
diff --git a/drivers/iommu/iommu-traces.c b/drivers/iommu/iommu-traces.c
index bf3b317ff0c1..1e9ca7789de1 100644
--- a/drivers/iommu/iommu-traces.c
+++ b/drivers/iommu/iommu-traces.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * iommu trace points
  *
diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index bd515be5b380..16d33ac19db0 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -371,7 +371,8 @@ static int mtk_iommu_map(struct iommu_domain *domain, unsigned long iova,
 	int ret;
 
 	spin_lock_irqsave(&dom->pgtlock, flags);
-	ret = dom->iop->map(dom->iop, iova, paddr, size, prot);
+	ret = dom->iop->map(dom->iop, iova, paddr & DMA_BIT_MASK(32),
+			    size, prot);
 	spin_unlock_irqrestore(&dom->pgtlock, flags);
 
 	return ret;
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c
index e60e3dba85a0..50947ebb6d17 100644
--- a/drivers/iommu/of_iommu.c
+++ b/drivers/iommu/of_iommu.c
@@ -157,10 +157,7 @@ static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
 
 	err = of_iommu_xlate(info->dev, &iommu_spec);
 	of_node_put(iommu_spec.np);
-	if (err)
-		return err;
-
-	return info->np == pdev->bus->dev.of_node;
+	return err;
 }
 
 const struct iommu_ops *of_iommu_configure(struct device *dev,
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c
index 0e2f31f9032b..22d4db302c1c 100644
--- a/drivers/iommu/s390-iommu.c
+++ b/drivers/iommu/s390-iommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IOMMU API for s390 PCI devices
  *
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 9d8a1dd2e2c2..53380bd72ea4 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -1,3 +1,5 @@
+menu "IRQ chip support"
+
 config IRQCHIP
 	def_bool y
 	depends on OF_IRQ
@@ -151,6 +153,9 @@ config CLPS711X_IRQCHIP
 	select SPARSE_IRQ
 	default y
 
+config OMPIC
+	bool
+
 config OR1K_PIC
 	bool
 	select IRQ_DOMAIN
@@ -304,6 +309,7 @@ config EZNPS_GIC
 config STM32_EXTI
 	bool
 	select IRQ_DOMAIN
+	select GENERIC_IRQ_CHIP
 
 config QCOM_IRQ_COMBINER
 	bool "QCOM IRQ combiner support"
@@ -321,3 +327,13 @@ config IRQ_UNIPHIER_AIDET
 	select IRQ_DOMAIN_HIERARCHY
 	help
 	  Support for the UniPhier AIDET (ARM Interrupt Detector).
+
+config MESON_IRQ_GPIO
+       bool "Meson GPIO Interrupt Multiplexer"
+       depends on ARCH_MESON
+       select IRQ_DOMAIN
+       select IRQ_DOMAIN_HIERARCHY
+       help
+         Support Meson SoC Family GPIO Interrupt Multiplexer
+
+endmenu
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index 845abc107ad5..dae7282bfdef 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IRQCHIP)			+= irqchip.o
 
 obj-$(CONFIG_ALPINE_MSI)		+= irq-alpine-msi.o
@@ -17,6 +18,7 @@ obj-$(CONFIG_DW_APB_ICTL)		+= irq-dw-apb-ictl.o
 obj-$(CONFIG_METAG)			+= irq-metag-ext.o
 obj-$(CONFIG_METAG_PERFCOUNTER_IRQS)	+= irq-metag.o
 obj-$(CONFIG_CLPS711X_IRQCHIP)		+= irq-clps711x.o
+obj-$(CONFIG_OMPIC)			+= irq-ompic.o
 obj-$(CONFIG_OR1K_PIC)			+= irq-or1k-pic.o
 obj-$(CONFIG_ORION_IRQCHIP)		+= irq-orion.o
 obj-$(CONFIG_OMAP_IRQCHIP)		+= irq-omap-intc.o
@@ -79,3 +81,5 @@ obj-$(CONFIG_ARCH_ASPEED)		+= irq-aspeed-vic.o irq-aspeed-i2c-ic.o
 obj-$(CONFIG_STM32_EXTI) 		+= irq-stm32-exti.o
 obj-$(CONFIG_QCOM_IRQ_COMBINER)		+= qcom-irq-combiner.o
 obj-$(CONFIG_IRQ_UNIPHIER_AIDET)	+= irq-uniphier-aidet.o
+obj-$(CONFIG_ARCH_SYNQUACER)		+= irq-sni-exiu.o
+obj-$(CONFIG_MESON_IRQ_GPIO)		+= irq-meson-gpio.o
diff --git a/drivers/irqchip/irq-aspeed-i2c-ic.c b/drivers/irqchip/irq-aspeed-i2c-ic.c
index 815b88dd18f2..f20200af0992 100644
--- a/drivers/irqchip/irq-aspeed-i2c-ic.c
+++ b/drivers/irqchip/irq-aspeed-i2c-ic.c
@@ -76,8 +76,8 @@ static int __init aspeed_i2c_ic_of_init(struct device_node *node,
 		return -ENOMEM;
 
 	i2c_ic->base = of_iomap(node, 0);
-	if (IS_ERR(i2c_ic->base)) {
-		ret = PTR_ERR(i2c_ic->base);
+	if (!i2c_ic->base) {
+		ret = -ENOMEM;
 		goto err_free_ic;
 	}
 
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index b009b916a292..691d20eb0bec 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -1,7 +1,7 @@
 /*
  * Generic Broadcom Set Top Box Level 2 Interrupt controller driver
  *
- * Copyright (C) 2014 Broadcom Corporation
+ * Copyright (C) 2014-2017 Broadcom
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -31,35 +31,82 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 
-/* Register offsets in the L2 interrupt controller */
-#define CPU_STATUS	0x00
-#define CPU_SET		0x04
-#define CPU_CLEAR	0x08
-#define CPU_MASK_STATUS	0x0c
-#define CPU_MASK_SET	0x10
-#define CPU_MASK_CLEAR	0x14
+struct brcmstb_intc_init_params {
+	irq_flow_handler_t handler;
+	int cpu_status;
+	int cpu_clear;
+	int cpu_mask_status;
+	int cpu_mask_set;
+	int cpu_mask_clear;
+};
+
+/* Register offsets in the L2 latched interrupt controller */
+static const struct brcmstb_intc_init_params l2_edge_intc_init = {
+	.handler		= handle_edge_irq,
+	.cpu_status		= 0x00,
+	.cpu_clear		= 0x08,
+	.cpu_mask_status	= 0x0c,
+	.cpu_mask_set		= 0x10,
+	.cpu_mask_clear		= 0x14
+};
+
+/* Register offsets in the L2 level interrupt controller */
+static const struct brcmstb_intc_init_params l2_lvl_intc_init = {
+	.handler		= handle_level_irq,
+	.cpu_status		= 0x00,
+	.cpu_clear		= -1, /* Register not present */
+	.cpu_mask_status	= 0x04,
+	.cpu_mask_set		= 0x08,
+	.cpu_mask_clear		= 0x0C
+};
 
 /* L2 intc private data structure */
 struct brcmstb_l2_intc_data {
-	int parent_irq;
-	void __iomem *base;
 	struct irq_domain *domain;
+	struct irq_chip_generic *gc;
+	int status_offset;
+	int mask_offset;
 	bool can_wake;
 	u32 saved_mask; /* for suspend/resume */
 };
 
+/**
+ * brcmstb_l2_mask_and_ack - Mask and ack pending interrupt
+ * @d: irq_data
+ *
+ * Chip has separate enable/disable registers instead of a single mask
+ * register and pending interrupt is acknowledged by setting a bit.
+ *
+ * Note: This function is generic and could easily be added to the
+ * generic irqchip implementation if there ever becomes a will to do so.
+ * Perhaps with a name like irq_gc_mask_disable_and_ack_set().
+ *
+ * e.g.: https://patchwork.kernel.org/patch/9831047/
+ */
+static void brcmstb_l2_mask_and_ack(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct irq_chip_type *ct = irq_data_get_chip_type(d);
+	u32 mask = d->mask;
+
+	irq_gc_lock(gc);
+	irq_reg_writel(gc, mask, ct->regs.disable);
+	*ct->mask_cache &= ~mask;
+	irq_reg_writel(gc, mask, ct->regs.ack);
+	irq_gc_unlock(gc);
+}
+
 static void brcmstb_l2_intc_irq_handle(struct irq_desc *desc)
 {
 	struct brcmstb_l2_intc_data *b = irq_desc_get_handler_data(desc);
-	struct irq_chip_generic *gc = irq_get_domain_generic_chip(b->domain, 0);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int irq;
 	u32 status;
 
 	chained_irq_enter(chip, desc);
 
-	status = irq_reg_readl(gc, CPU_STATUS) &
-		~(irq_reg_readl(gc, CPU_MASK_STATUS));
+	status = irq_reg_readl(b->gc, b->status_offset) &
+		~(irq_reg_readl(b->gc, b->mask_offset));
 
 	if (status == 0) {
 		raw_spin_lock(&desc->lock);
@@ -70,10 +117,8 @@ static void brcmstb_l2_intc_irq_handle(struct irq_desc *desc)
 
 	do {
 		irq = ffs(status) - 1;
-		/* ack at our level */
-		irq_reg_writel(gc, 1 << irq, CPU_CLEAR);
 		status &= ~(1 << irq);
-		generic_handle_irq(irq_find_mapping(b->domain, irq));
+		generic_handle_irq(irq_linear_revmap(b->domain, irq));
 	} while (status);
 out:
 	chained_irq_exit(chip, desc);
@@ -82,16 +127,17 @@ out:
 static void brcmstb_l2_intc_suspend(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct irq_chip_type *ct = irq_data_get_chip_type(d);
 	struct brcmstb_l2_intc_data *b = gc->private;
 
 	irq_gc_lock(gc);
 	/* Save the current mask */
-	b->saved_mask = irq_reg_readl(gc, CPU_MASK_STATUS);
+	b->saved_mask = irq_reg_readl(gc, ct->regs.mask);
 
 	if (b->can_wake) {
 		/* Program the wakeup mask */
-		irq_reg_writel(gc, ~gc->wake_active, CPU_MASK_SET);
-		irq_reg_writel(gc, gc->wake_active, CPU_MASK_CLEAR);
+		irq_reg_writel(gc, ~gc->wake_active, ct->regs.disable);
+		irq_reg_writel(gc, gc->wake_active, ct->regs.enable);
 	}
 	irq_gc_unlock(gc);
 }
@@ -99,49 +145,56 @@ static void brcmstb_l2_intc_suspend(struct irq_data *d)
 static void brcmstb_l2_intc_resume(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	struct irq_chip_type *ct = irq_data_get_chip_type(d);
 	struct brcmstb_l2_intc_data *b = gc->private;
 
 	irq_gc_lock(gc);
-	/* Clear unmasked non-wakeup interrupts */
-	irq_reg_writel(gc, ~b->saved_mask & ~gc->wake_active, CPU_CLEAR);
+	if (ct->chip.irq_ack) {
+		/* Clear unmasked non-wakeup interrupts */
+		irq_reg_writel(gc, ~b->saved_mask & ~gc->wake_active,
+				ct->regs.ack);
+	}
 
 	/* Restore the saved mask */
-	irq_reg_writel(gc, b->saved_mask, CPU_MASK_SET);
-	irq_reg_writel(gc, ~b->saved_mask, CPU_MASK_CLEAR);
+	irq_reg_writel(gc, b->saved_mask, ct->regs.disable);
+	irq_reg_writel(gc, ~b->saved_mask, ct->regs.enable);
 	irq_gc_unlock(gc);
 }
 
 static int __init brcmstb_l2_intc_of_init(struct device_node *np,
-					  struct device_node *parent)
+					  struct device_node *parent,
+					  const struct brcmstb_intc_init_params
+					  *init_params)
 {
 	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
 	struct brcmstb_l2_intc_data *data;
-	struct irq_chip_generic *gc;
 	struct irq_chip_type *ct;
 	int ret;
 	unsigned int flags;
+	int parent_irq;
+	void __iomem *base;
 
 	data = kzalloc(sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	data->base = of_iomap(np, 0);
-	if (!data->base) {
+	base = of_iomap(np, 0);
+	if (!base) {
 		pr_err("failed to remap intc L2 registers\n");
 		ret = -ENOMEM;
 		goto out_free;
 	}
 
 	/* Disable all interrupts by default */
-	writel(0xffffffff, data->base + CPU_MASK_SET);
+	writel(0xffffffff, base + init_params->cpu_mask_set);
 
 	/* Wakeup interrupts may be retained from S5 (cold boot) */
 	data->can_wake = of_property_read_bool(np, "brcm,irq-can-wake");
-	if (!data->can_wake)
-		writel(0xffffffff, data->base + CPU_CLEAR);
+	if (!data->can_wake && (init_params->cpu_clear >= 0))
+		writel(0xffffffff, base + init_params->cpu_clear);
 
-	data->parent_irq = irq_of_parse_and_map(np, 0);
-	if (!data->parent_irq) {
+	parent_irq = irq_of_parse_and_map(np, 0);
+	if (!parent_irq) {
 		pr_err("failed to find parent interrupt\n");
 		ret = -EINVAL;
 		goto out_unmap;
@@ -163,29 +216,39 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
 
 	/* Allocate a single Generic IRQ chip for this node */
 	ret = irq_alloc_domain_generic_chips(data->domain, 32, 1,
-				np->full_name, handle_edge_irq, clr, 0, flags);
+			np->full_name, init_params->handler, clr, 0, flags);
 	if (ret) {
 		pr_err("failed to allocate generic irq chip\n");
 		goto out_free_domain;
 	}
 
 	/* Set the IRQ chaining logic */
-	irq_set_chained_handler_and_data(data->parent_irq,
+	irq_set_chained_handler_and_data(parent_irq,
 					 brcmstb_l2_intc_irq_handle, data);
 
-	gc = irq_get_domain_generic_chip(data->domain, 0);
-	gc->reg_base = data->base;
-	gc->private = data;
-	ct = gc->chip_types;
-
-	ct->chip.irq_ack = irq_gc_ack_set_bit;
-	ct->regs.ack = CPU_CLEAR;
+	data->gc = irq_get_domain_generic_chip(data->domain, 0);
+	data->gc->reg_base = base;
+	data->gc->private = data;
+	data->status_offset = init_params->cpu_status;
+	data->mask_offset = init_params->cpu_mask_status;
+
+	ct = data->gc->chip_types;
+
+	if (init_params->cpu_clear >= 0) {
+		ct->regs.ack = init_params->cpu_clear;
+		ct->chip.irq_ack = irq_gc_ack_set_bit;
+		ct->chip.irq_mask_ack = brcmstb_l2_mask_and_ack;
+	} else {
+		/* No Ack - but still slightly more efficient to define this */
+		ct->chip.irq_mask_ack = irq_gc_mask_disable_reg;
+	}
 
 	ct->chip.irq_mask = irq_gc_mask_disable_reg;
-	ct->regs.disable = CPU_MASK_SET;
+	ct->regs.disable = init_params->cpu_mask_set;
+	ct->regs.mask = init_params->cpu_mask_status;
 
 	ct->chip.irq_unmask = irq_gc_unmask_enable_reg;
-	ct->regs.enable = CPU_MASK_CLEAR;
+	ct->regs.enable = init_params->cpu_mask_clear;
 
 	ct->chip.irq_suspend = brcmstb_l2_intc_suspend;
 	ct->chip.irq_resume = brcmstb_l2_intc_resume;
@@ -195,21 +258,35 @@ static int __init brcmstb_l2_intc_of_init(struct device_node *np,
 		/* This IRQ chip can wake the system, set all child interrupts
 		 * in wake_enabled mask
 		 */
-		gc->wake_enabled = 0xffffffff;
+		data->gc->wake_enabled = 0xffffffff;
 		ct->chip.irq_set_wake = irq_gc_set_wake;
 	}
 
 	pr_info("registered L2 intc (mem: 0x%p, parent irq: %d)\n",
-			data->base, data->parent_irq);
+			base, parent_irq);
 
 	return 0;
 
 out_free_domain:
 	irq_domain_remove(data->domain);
 out_unmap:
-	iounmap(data->base);
+	iounmap(base);
 out_free:
 	kfree(data);
 	return ret;
 }
-IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_intc_of_init);
+
+int __init brcmstb_l2_edge_intc_of_init(struct device_node *np,
+	struct device_node *parent)
+{
+	return brcmstb_l2_intc_of_init(np, parent, &l2_edge_intc_init);
+}
+IRQCHIP_DECLARE(brcmstb_l2_intc, "brcm,l2-intc", brcmstb_l2_edge_intc_of_init);
+
+int __init brcmstb_l2_lvl_intc_of_init(struct device_node *np,
+	struct device_node *parent)
+{
+	return brcmstb_l2_intc_of_init(np, parent, &l2_lvl_intc_init);
+}
+IRQCHIP_DECLARE(bcm7271_l2_intc, "brcm,bcm7271-l2-intc",
+	brcmstb_l2_lvl_intc_of_init);
diff --git a/drivers/irqchip/irq-ftintc010.c b/drivers/irqchip/irq-ftintc010.c
index cd2dc8bbbe9c..0bf98425dca5 100644
--- a/drivers/irqchip/irq-ftintc010.c
+++ b/drivers/irqchip/irq-ftintc010.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * irqchip for the Faraday Technology FTINTC010 Copyright (C) 2017 Linus
  * Walleij <linus.walleij@linaro.org>
diff --git a/drivers/irqchip/irq-gic-common.c b/drivers/irqchip/irq-gic-common.c
index 9ae71804b5dd..30017df5b54c 100644
--- a/drivers/irqchip/irq-gic-common.c
+++ b/drivers/irqchip/irq-gic-common.c
@@ -40,8 +40,9 @@ void gic_enable_quirks(u32 iidr, const struct gic_quirk *quirks,
 	for (; quirks->desc; quirks++) {
 		if (quirks->iidr != (quirks->mask & iidr))
 			continue;
-		quirks->init(data);
-		pr_info("GIC: enabling workaround for %s\n", quirks->desc);
+		if (quirks->init(data))
+			pr_info("GIC: enabling workaround for %s\n",
+				quirks->desc);
 	}
 }
 
diff --git a/drivers/irqchip/irq-gic-common.h b/drivers/irqchip/irq-gic-common.h
index 205e5fddf6da..3919cd7c5285 100644
--- a/drivers/irqchip/irq-gic-common.h
+++ b/drivers/irqchip/irq-gic-common.h
@@ -23,7 +23,7 @@
 
 struct gic_quirk {
 	const char *desc;
-	void (*init)(void *data);
+	bool (*init)(void *data);
 	u32 iidr;
 	u32 mask;
 };
diff --git a/drivers/irqchip/irq-gic-realview.c b/drivers/irqchip/irq-gic-realview.c
index 18d58d2b4ffe..b4c1924f0255 100644
--- a/drivers/irqchip/irq-gic-realview.c
+++ b/drivers/irqchip/irq-gic-realview.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Special GIC quirks for the ARM RealView
  * Copyright (C) 2015 Linus Walleij
diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index e8d89343d613..4039e64cd342 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -83,6 +83,8 @@ struct its_baser {
 	u32		psz;
 };
 
+struct its_device;
+
 /*
  * The ITS structure - contains most of the infrastructure, with the
  * top-level MSI domain, the command queue, the collections, and the
@@ -97,16 +99,26 @@ struct its_node {
 	struct its_cmd_block	*cmd_write;
 	struct its_baser	tables[GITS_BASER_NR_REGS];
 	struct its_collection	*collections;
+	struct fwnode_handle	*fwnode_handle;
+	u64			(*get_msi_base)(struct its_device *its_dev);
 	struct list_head	its_device_list;
 	u64			flags;
+	unsigned long		list_nr;
 	u32			ite_size;
 	u32			device_ids;
 	int			numa_node;
+	unsigned int		msi_domain_flags;
+	u32			pre_its_base; /* for Socionext Synquacer */
 	bool			is_v4;
+	int			vlpi_redist_offset;
 };
 
 #define ITS_ITT_ALIGN		SZ_256
 
+/* The maximum number of VPEID bits supported by VLPI commands */
+#define ITS_MAX_VPEID_BITS	(16)
+#define ITS_MAX_VPEID		(1 << (ITS_MAX_VPEID_BITS))
+
 /* Convert page order to size in bytes */
 #define PAGE_ORDER_TO_SIZE(o)	(PAGE_SIZE << (o))
 
@@ -148,12 +160,6 @@ static DEFINE_SPINLOCK(its_lock);
 static struct rdists *gic_rdists;
 static struct irq_domain *its_parent;
 
-/*
- * We have a maximum number of 16 ITSs in the whole system if we're
- * using the ITSList mechanism
- */
-#define ITS_LIST_MAX		16
-
 static unsigned long its_list_map;
 static u16 vmovp_seq_num;
 static DEFINE_RAW_SPINLOCK(vmovp_lock);
@@ -268,10 +274,12 @@ struct its_cmd_block {
 #define ITS_CMD_QUEUE_SZ		SZ_64K
 #define ITS_CMD_QUEUE_NR_ENTRIES	(ITS_CMD_QUEUE_SZ / sizeof(struct its_cmd_block))
 
-typedef struct its_collection *(*its_cmd_builder_t)(struct its_cmd_block *,
+typedef struct its_collection *(*its_cmd_builder_t)(struct its_node *,
+						    struct its_cmd_block *,
 						    struct its_cmd_desc *);
 
-typedef struct its_vpe *(*its_cmd_vbuilder_t)(struct its_cmd_block *,
+typedef struct its_vpe *(*its_cmd_vbuilder_t)(struct its_node *,
+					      struct its_cmd_block *,
 					      struct its_cmd_desc *);
 
 static void its_mask_encode(u64 *raw_cmd, u64 val, int h, int l)
@@ -308,7 +316,7 @@ static void its_encode_size(struct its_cmd_block *cmd, u8 size)
 
 static void its_encode_itt(struct its_cmd_block *cmd, u64 itt_addr)
 {
-	its_mask_encode(&cmd->raw_cmd[2], itt_addr >> 8, 50, 8);
+	its_mask_encode(&cmd->raw_cmd[2], itt_addr >> 8, 51, 8);
 }
 
 static void its_encode_valid(struct its_cmd_block *cmd, int valid)
@@ -318,7 +326,7 @@ static void its_encode_valid(struct its_cmd_block *cmd, int valid)
 
 static void its_encode_target(struct its_cmd_block *cmd, u64 target_addr)
 {
-	its_mask_encode(&cmd->raw_cmd[2], target_addr >> 16, 50, 16);
+	its_mask_encode(&cmd->raw_cmd[2], target_addr >> 16, 51, 16);
 }
 
 static void its_encode_collection(struct its_cmd_block *cmd, u16 col)
@@ -358,7 +366,7 @@ static void its_encode_its_list(struct its_cmd_block *cmd, u16 its_list)
 
 static void its_encode_vpt_addr(struct its_cmd_block *cmd, u64 vpt_pa)
 {
-	its_mask_encode(&cmd->raw_cmd[3], vpt_pa >> 16, 50, 16);
+	its_mask_encode(&cmd->raw_cmd[3], vpt_pa >> 16, 51, 16);
 }
 
 static void its_encode_vpt_size(struct its_cmd_block *cmd, u8 vpt_size)
@@ -375,7 +383,8 @@ static inline void its_fixup_cmd(struct its_cmd_block *cmd)
 	cmd->raw_cmd[3] = cpu_to_le64(cmd->raw_cmd[3]);
 }
 
-static struct its_collection *its_build_mapd_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_mapd_cmd(struct its_node *its,
+						 struct its_cmd_block *cmd,
 						 struct its_cmd_desc *desc)
 {
 	unsigned long itt_addr;
@@ -395,7 +404,8 @@ static struct its_collection *its_build_mapd_cmd(struct its_cmd_block *cmd,
 	return NULL;
 }
 
-static struct its_collection *its_build_mapc_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_mapc_cmd(struct its_node *its,
+						 struct its_cmd_block *cmd,
 						 struct its_cmd_desc *desc)
 {
 	its_encode_cmd(cmd, GITS_CMD_MAPC);
@@ -408,7 +418,8 @@ static struct its_collection *its_build_mapc_cmd(struct its_cmd_block *cmd,
 	return desc->its_mapc_cmd.col;
 }
 
-static struct its_collection *its_build_mapti_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_mapti_cmd(struct its_node *its,
+						  struct its_cmd_block *cmd,
 						  struct its_cmd_desc *desc)
 {
 	struct its_collection *col;
@@ -427,7 +438,8 @@ static struct its_collection *its_build_mapti_cmd(struct its_cmd_block *cmd,
 	return col;
 }
 
-static struct its_collection *its_build_movi_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_movi_cmd(struct its_node *its,
+						 struct its_cmd_block *cmd,
 						 struct its_cmd_desc *desc)
 {
 	struct its_collection *col;
@@ -445,7 +457,8 @@ static struct its_collection *its_build_movi_cmd(struct its_cmd_block *cmd,
 	return col;
 }
 
-static struct its_collection *its_build_discard_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_discard_cmd(struct its_node *its,
+						    struct its_cmd_block *cmd,
 						    struct its_cmd_desc *desc)
 {
 	struct its_collection *col;
@@ -462,7 +475,8 @@ static struct its_collection *its_build_discard_cmd(struct its_cmd_block *cmd,
 	return col;
 }
 
-static struct its_collection *its_build_inv_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_inv_cmd(struct its_node *its,
+						struct its_cmd_block *cmd,
 						struct its_cmd_desc *desc)
 {
 	struct its_collection *col;
@@ -479,7 +493,8 @@ static struct its_collection *its_build_inv_cmd(struct its_cmd_block *cmd,
 	return col;
 }
 
-static struct its_collection *its_build_int_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_int_cmd(struct its_node *its,
+						struct its_cmd_block *cmd,
 						struct its_cmd_desc *desc)
 {
 	struct its_collection *col;
@@ -496,7 +511,8 @@ static struct its_collection *its_build_int_cmd(struct its_cmd_block *cmd,
 	return col;
 }
 
-static struct its_collection *its_build_clear_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_clear_cmd(struct its_node *its,
+						  struct its_cmd_block *cmd,
 						  struct its_cmd_desc *desc)
 {
 	struct its_collection *col;
@@ -513,7 +529,8 @@ static struct its_collection *its_build_clear_cmd(struct its_cmd_block *cmd,
 	return col;
 }
 
-static struct its_collection *its_build_invall_cmd(struct its_cmd_block *cmd,
+static struct its_collection *its_build_invall_cmd(struct its_node *its,
+						   struct its_cmd_block *cmd,
 						   struct its_cmd_desc *desc)
 {
 	its_encode_cmd(cmd, GITS_CMD_INVALL);
@@ -524,7 +541,8 @@ static struct its_collection *its_build_invall_cmd(struct its_cmd_block *cmd,
 	return NULL;
 }
 
-static struct its_vpe *its_build_vinvall_cmd(struct its_cmd_block *cmd,
+static struct its_vpe *its_build_vinvall_cmd(struct its_node *its,
+					     struct its_cmd_block *cmd,
 					     struct its_cmd_desc *desc)
 {
 	its_encode_cmd(cmd, GITS_CMD_VINVALL);
@@ -535,17 +553,20 @@ static struct its_vpe *its_build_vinvall_cmd(struct its_cmd_block *cmd,
 	return desc->its_vinvall_cmd.vpe;
 }
 
-static struct its_vpe *its_build_vmapp_cmd(struct its_cmd_block *cmd,
+static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
+					   struct its_cmd_block *cmd,
 					   struct its_cmd_desc *desc)
 {
 	unsigned long vpt_addr;
+	u64 target;
 
 	vpt_addr = virt_to_phys(page_address(desc->its_vmapp_cmd.vpe->vpt_page));
+	target = desc->its_vmapp_cmd.col->target_address + its->vlpi_redist_offset;
 
 	its_encode_cmd(cmd, GITS_CMD_VMAPP);
 	its_encode_vpeid(cmd, desc->its_vmapp_cmd.vpe->vpe_id);
 	its_encode_valid(cmd, desc->its_vmapp_cmd.valid);
-	its_encode_target(cmd, desc->its_vmapp_cmd.col->target_address);
+	its_encode_target(cmd, target);
 	its_encode_vpt_addr(cmd, vpt_addr);
 	its_encode_vpt_size(cmd, LPI_NRBITS - 1);
 
@@ -554,7 +575,8 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_cmd_block *cmd,
 	return desc->its_vmapp_cmd.vpe;
 }
 
-static struct its_vpe *its_build_vmapti_cmd(struct its_cmd_block *cmd,
+static struct its_vpe *its_build_vmapti_cmd(struct its_node *its,
+					    struct its_cmd_block *cmd,
 					    struct its_cmd_desc *desc)
 {
 	u32 db;
@@ -576,7 +598,8 @@ static struct its_vpe *its_build_vmapti_cmd(struct its_cmd_block *cmd,
 	return desc->its_vmapti_cmd.vpe;
 }
 
-static struct its_vpe *its_build_vmovi_cmd(struct its_cmd_block *cmd,
+static struct its_vpe *its_build_vmovi_cmd(struct its_node *its,
+					   struct its_cmd_block *cmd,
 					   struct its_cmd_desc *desc)
 {
 	u32 db;
@@ -598,14 +621,18 @@ static struct its_vpe *its_build_vmovi_cmd(struct its_cmd_block *cmd,
 	return desc->its_vmovi_cmd.vpe;
 }
 
-static struct its_vpe *its_build_vmovp_cmd(struct its_cmd_block *cmd,
+static struct its_vpe *its_build_vmovp_cmd(struct its_node *its,
+					   struct its_cmd_block *cmd,
 					   struct its_cmd_desc *desc)
 {
+	u64 target;
+
+	target = desc->its_vmovp_cmd.col->target_address + its->vlpi_redist_offset;
 	its_encode_cmd(cmd, GITS_CMD_VMOVP);
 	its_encode_seq_num(cmd, desc->its_vmovp_cmd.seq_num);
 	its_encode_its_list(cmd, desc->its_vmovp_cmd.its_list);
 	its_encode_vpeid(cmd, desc->its_vmovp_cmd.vpe->vpe_id);
-	its_encode_target(cmd, desc->its_vmovp_cmd.col->target_address);
+	its_encode_target(cmd, target);
 
 	its_fixup_cmd(cmd);
 
@@ -684,9 +711,9 @@ static void its_flush_cmd(struct its_node *its, struct its_cmd_block *cmd)
 		dsb(ishst);
 }
 
-static void its_wait_for_range_completion(struct its_node *its,
-					  struct its_cmd_block *from,
-					  struct its_cmd_block *to)
+static int its_wait_for_range_completion(struct its_node *its,
+					 struct its_cmd_block *from,
+					 struct its_cmd_block *to)
 {
 	u64 rd_idx, from_idx, to_idx;
 	u32 count = 1000000;	/* 1s! */
@@ -707,12 +734,15 @@ static void its_wait_for_range_completion(struct its_node *its,
 
 		count--;
 		if (!count) {
-			pr_err_ratelimited("ITS queue timeout\n");
-			return;
+			pr_err_ratelimited("ITS queue timeout (%llu %llu %llu)\n",
+					   from_idx, to_idx, rd_idx);
+			return -1;
 		}
 		cpu_relax();
 		udelay(1);
 	}
+
+	return 0;
 }
 
 /* Warning, macro hell follows */
@@ -732,7 +762,7 @@ void name(struct its_node *its,						\
 		raw_spin_unlock_irqrestore(&its->lock, flags);		\
 		return;							\
 	}								\
-	sync_obj = builder(cmd, desc);					\
+	sync_obj = builder(its, cmd, desc);				\
 	its_flush_cmd(its, cmd);					\
 									\
 	if (sync_obj) {							\
@@ -740,7 +770,7 @@ void name(struct its_node *its,						\
 		if (!sync_cmd)						\
 			goto post;					\
 									\
-		buildfn(sync_cmd, sync_obj);				\
+		buildfn(its, sync_cmd, sync_obj);			\
 		its_flush_cmd(its, sync_cmd);				\
 	}								\
 									\
@@ -748,10 +778,12 @@ post:									\
 	next_cmd = its_post_commands(its);				\
 	raw_spin_unlock_irqrestore(&its->lock, flags);			\
 									\
-	its_wait_for_range_completion(its, cmd, next_cmd);		\
+	if (its_wait_for_range_completion(its, cmd, next_cmd))		\
+		pr_err_ratelimited("ITS cmd %ps failed\n", builder);	\
 }
 
-static void its_build_sync_cmd(struct its_cmd_block *sync_cmd,
+static void its_build_sync_cmd(struct its_node *its,
+			       struct its_cmd_block *sync_cmd,
 			       struct its_collection *sync_col)
 {
 	its_encode_cmd(sync_cmd, GITS_CMD_SYNC);
@@ -763,7 +795,8 @@ static void its_build_sync_cmd(struct its_cmd_block *sync_cmd,
 static BUILD_SINGLE_CMD_FUNC(its_send_single_command, its_cmd_builder_t,
 			     struct its_collection, its_build_sync_cmd)
 
-static void its_build_vsync_cmd(struct its_cmd_block *sync_cmd,
+static void its_build_vsync_cmd(struct its_node *its,
+				struct its_cmd_block *sync_cmd,
 				struct its_vpe *sync_vpe)
 {
 	its_encode_cmd(sync_cmd, GITS_CMD_VSYNC);
@@ -895,21 +928,16 @@ static void its_send_vmovi(struct its_device *dev, u32 id)
 	its_send_single_vcommand(dev->its, its_build_vmovi_cmd, &desc);
 }
 
-static void its_send_vmapp(struct its_vpe *vpe, bool valid)
+static void its_send_vmapp(struct its_node *its,
+			   struct its_vpe *vpe, bool valid)
 {
 	struct its_cmd_desc desc;
-	struct its_node *its;
 
 	desc.its_vmapp_cmd.vpe = vpe;
 	desc.its_vmapp_cmd.valid = valid;
+	desc.its_vmapp_cmd.col = &its->collections[vpe->col_idx];
 
-	list_for_each_entry(its, &its_nodes, entry) {
-		if (!its->is_v4)
-			continue;
-
-		desc.its_vmapp_cmd.col = &its->collections[vpe->col_idx];
-		its_send_single_vcommand(its, its_build_vmapp_cmd, &desc);
-	}
+	its_send_single_vcommand(its, its_build_vmapp_cmd, &desc);
 }
 
 static void its_send_vmovp(struct its_vpe *vpe)
@@ -947,6 +975,9 @@ static void its_send_vmovp(struct its_vpe *vpe)
 		if (!its->is_v4)
 			continue;
 
+		if (!vpe->its_vm->vlpi_count[its->list_nr])
+			continue;
+
 		desc.its_vmovp_cmd.col = &its->collections[col_id];
 		its_send_single_vcommand(its, its_build_vmovp_cmd, &desc);
 	}
@@ -954,18 +985,12 @@ static void its_send_vmovp(struct its_vpe *vpe)
 	raw_spin_unlock_irqrestore(&vmovp_lock, flags);
 }
 
-static void its_send_vinvall(struct its_vpe *vpe)
+static void its_send_vinvall(struct its_node *its, struct its_vpe *vpe)
 {
 	struct its_cmd_desc desc;
-	struct its_node *its;
 
 	desc.its_vinvall_cmd.vpe = vpe;
-
-	list_for_each_entry(its, &its_nodes, entry) {
-		if (!its->is_v4)
-			continue;
-		its_send_single_vcommand(its, its_build_vinvall_cmd, &desc);
-	}
+	its_send_single_vcommand(its, its_build_vinvall_cmd, &desc);
 }
 
 /*
@@ -987,9 +1012,15 @@ static void lpi_write_config(struct irq_data *d, u8 clr, u8 set)
 	if (irqd_is_forwarded_to_vcpu(d)) {
 		struct its_device *its_dev = irq_data_get_irq_chip_data(d);
 		u32 event = its_get_event_id(d);
+		struct its_vlpi_map *map;
 
 		prop_page = its_dev->event_map.vm->vprop_page;
-		hwirq = its_dev->event_map.vlpi_maps[event].vintid;
+		map = &its_dev->event_map.vlpi_maps[event];
+		hwirq = map->vintid;
+
+		/* Remember the updated property */
+		map->properties &= ~clr;
+		map->properties |= set | LPI_PROP_GROUP1;
 	} else {
 		prop_page = gic_rdists->prop_page;
 		hwirq = d->hwirq;
@@ -1095,6 +1126,13 @@ static int its_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 	return IRQ_SET_MASK_OK_DONE;
 }
 
+static u64 its_irq_get_msi_base(struct its_device *its_dev)
+{
+	struct its_node *its = its_dev->its;
+
+	return its->phys_base + GITS_TRANSLATER;
+}
+
 static void its_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *msg)
 {
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
@@ -1102,7 +1140,7 @@ static void its_irq_compose_msi_msg(struct irq_data *d, struct msi_msg *msg)
 	u64 addr;
 
 	its = its_dev->its;
-	addr = its->phys_base + GITS_TRANSLATER;
+	addr = its->get_msi_base(its_dev);
 
 	msg->address_lo		= lower_32_bits(addr);
 	msg->address_hi		= upper_32_bits(addr);
@@ -1129,6 +1167,60 @@ static int its_irq_set_irqchip_state(struct irq_data *d,
 	return 0;
 }
 
+static void its_map_vm(struct its_node *its, struct its_vm *vm)
+{
+	unsigned long flags;
+
+	/* Not using the ITS list? Everything is always mapped. */
+	if (!its_list_map)
+		return;
+
+	raw_spin_lock_irqsave(&vmovp_lock, flags);
+
+	/*
+	 * If the VM wasn't mapped yet, iterate over the vpes and get
+	 * them mapped now.
+	 */
+	vm->vlpi_count[its->list_nr]++;
+
+	if (vm->vlpi_count[its->list_nr] == 1) {
+		int i;
+
+		for (i = 0; i < vm->nr_vpes; i++) {
+			struct its_vpe *vpe = vm->vpes[i];
+			struct irq_data *d = irq_get_irq_data(vpe->irq);
+
+			/* Map the VPE to the first possible CPU */
+			vpe->col_idx = cpumask_first(cpu_online_mask);
+			its_send_vmapp(its, vpe, true);
+			its_send_vinvall(its, vpe);
+			irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
+		}
+	}
+
+	raw_spin_unlock_irqrestore(&vmovp_lock, flags);
+}
+
+static void its_unmap_vm(struct its_node *its, struct its_vm *vm)
+{
+	unsigned long flags;
+
+	/* Not using the ITS list? Everything is always mapped. */
+	if (!its_list_map)
+		return;
+
+	raw_spin_lock_irqsave(&vmovp_lock, flags);
+
+	if (!--vm->vlpi_count[its->list_nr]) {
+		int i;
+
+		for (i = 0; i < vm->nr_vpes; i++)
+			its_send_vmapp(its, vm->vpes[i], false);
+	}
+
+	raw_spin_unlock_irqrestore(&vmovp_lock, flags);
+}
+
 static int its_vlpi_map(struct irq_data *d, struct its_cmd_info *info)
 {
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
@@ -1164,12 +1256,23 @@ static int its_vlpi_map(struct irq_data *d, struct its_cmd_info *info)
 		/* Already mapped, move it around */
 		its_send_vmovi(its_dev, event);
 	} else {
+		/* Ensure all the VPEs are mapped on this ITS */
+		its_map_vm(its_dev->its, info->map->vm);
+
+		/*
+		 * Flag the interrupt as forwarded so that we can
+		 * start poking the virtual property table.
+		 */
+		irqd_set_forwarded_to_vcpu(d);
+
+		/* Write out the property to the prop table */
+		lpi_write_config(d, 0xff, info->map->properties);
+
 		/* Drop the physical mapping */
 		its_send_discard(its_dev, event);
 
 		/* and install the virtual one */
 		its_send_vmapti(its_dev, event);
-		irqd_set_forwarded_to_vcpu(d);
 
 		/* Increment the number of VLPIs */
 		its_dev->event_map.nr_vlpis++;
@@ -1225,6 +1328,9 @@ static int its_vlpi_unmap(struct irq_data *d)
 				    LPI_PROP_ENABLED |
 				    LPI_PROP_GROUP1));
 
+	/* Potentially unmap the VM from this ITS */
+	its_unmap_vm(its_dev->its, its_dev->event_map.vm);
+
 	/*
 	 * Drop the refcount and make the device available again if
 	 * this was the last VLPI.
@@ -1478,9 +1584,9 @@ static int its_setup_baser(struct its_node *its, struct its_baser *baser,
 	u64 val = its_read_baser(its, baser);
 	u64 esz = GITS_BASER_ENTRY_SIZE(val);
 	u64 type = GITS_BASER_TYPE(val);
+	u64 baser_phys, tmp;
 	u32 alloc_pages;
 	void *base;
-	u64 tmp;
 
 retry_alloc_baser:
 	alloc_pages = (PAGE_ORDER_TO_SIZE(order) / psz);
@@ -1496,8 +1602,24 @@ retry_alloc_baser:
 	if (!base)
 		return -ENOMEM;
 
+	baser_phys = virt_to_phys(base);
+
+	/* Check if the physical address of the memory is above 48bits */
+	if (IS_ENABLED(CONFIG_ARM64_64K_PAGES) && (baser_phys >> 48)) {
+
+		/* 52bit PA is supported only when PageSize=64K */
+		if (psz != SZ_64K) {
+			pr_err("ITS: no 52bit PA support when psz=%d\n", psz);
+			free_pages((unsigned long)base, order);
+			return -ENXIO;
+		}
+
+		/* Convert 52bit PA to 48bit field */
+		baser_phys = GITS_BASER_PHYS_52_to_48(baser_phys);
+	}
+
 retry_baser:
-	val = (virt_to_phys(base)				 |
+	val = (baser_phys					 |
 		(type << GITS_BASER_TYPE_SHIFT)			 |
 		((esz - 1) << GITS_BASER_ENTRY_SIZE_SHIFT)	 |
 		((alloc_pages - 1) << GITS_BASER_PAGES_SHIFT)	 |
@@ -1582,13 +1704,12 @@ retry_baser:
 
 static bool its_parse_indirect_baser(struct its_node *its,
 				     struct its_baser *baser,
-				     u32 psz, u32 *order)
+				     u32 psz, u32 *order, u32 ids)
 {
 	u64 tmp = its_read_baser(its, baser);
 	u64 type = GITS_BASER_TYPE(tmp);
 	u64 esz = GITS_BASER_ENTRY_SIZE(tmp);
 	u64 val = GITS_BASER_InnerShareable | GITS_BASER_RaWaWb;
-	u32 ids = its->device_ids;
 	u32 new_order = *order;
 	bool indirect = false;
 
@@ -1650,23 +1771,14 @@ static void its_free_tables(struct its_node *its)
 
 static int its_alloc_tables(struct its_node *its)
 {
-	u64 typer = gic_read_typer(its->base + GITS_TYPER);
-	u32 ids = GITS_TYPER_DEVBITS(typer);
 	u64 shr = GITS_BASER_InnerShareable;
 	u64 cache = GITS_BASER_RaWaWb;
 	u32 psz = SZ_64K;
 	int err, i;
 
-	if (its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_22375) {
-		/*
-		* erratum 22375: only alloc 8MB table size
-		* erratum 24313: ignore memory access type
-		*/
-		cache   = GITS_BASER_nCnB;
-		ids     = 0x14;                 /* 20 bits, 8MB */
-	}
-
-	its->device_ids = ids;
+	if (its->flags & ITS_FLAGS_WORKAROUND_CAVIUM_22375)
+		/* erratum 24313: ignore memory access type */
+		cache = GITS_BASER_nCnB;
 
 	for (i = 0; i < GITS_BASER_NR_REGS; i++) {
 		struct its_baser *baser = its->tables + i;
@@ -1680,9 +1792,13 @@ static int its_alloc_tables(struct its_node *its)
 			continue;
 
 		case GITS_BASER_TYPE_DEVICE:
+			indirect = its_parse_indirect_baser(its, baser,
+							    psz, &order,
+							    its->device_ids);
 		case GITS_BASER_TYPE_VCPU:
 			indirect = its_parse_indirect_baser(its, baser,
-							    psz, &order);
+							    psz, &order,
+							    ITS_MAX_VPEID_BITS);
 			break;
 		}
 
@@ -2186,8 +2302,8 @@ static int its_irq_domain_alloc(struct irq_domain *domain, unsigned int virq,
 	return 0;
 }
 
-static void its_irq_domain_activate(struct irq_domain *domain,
-				    struct irq_data *d)
+static int its_irq_domain_activate(struct irq_domain *domain,
+				   struct irq_data *d, bool early)
 {
 	struct its_device *its_dev = irq_data_get_irq_chip_data(d);
 	u32 event = its_get_event_id(d);
@@ -2205,6 +2321,7 @@ static void its_irq_domain_activate(struct irq_domain *domain,
 
 	/* Map the GIC IRQ and event to the device */
 	its_send_mapti(its_dev, d->hwirq, event);
+	return 0;
 }
 
 static void its_irq_domain_deactivate(struct irq_domain *domain,
@@ -2371,6 +2488,8 @@ static int its_vpe_set_affinity(struct irq_data *d,
 		its_vpe_db_proxy_move(vpe, from, cpu);
 	}
 
+	irq_data_update_effective_affinity(d, cpumask_of(cpu));
+
 	return IRQ_SET_MASK_OK_DONE;
 }
 
@@ -2438,6 +2557,26 @@ static void its_vpe_deschedule(struct its_vpe *vpe)
 	}
 }
 
+static void its_vpe_invall(struct its_vpe *vpe)
+{
+	struct its_node *its;
+
+	list_for_each_entry(its, &its_nodes, entry) {
+		if (!its->is_v4)
+			continue;
+
+		if (its_list_map && !vpe->its_vm->vlpi_count[its->list_nr])
+			continue;
+
+		/*
+		 * Sending a VINVALL to a single ITS is enough, as all
+		 * we need is to reach the redistributors.
+		 */
+		its_send_vinvall(its, vpe);
+		return;
+	}
+}
+
 static int its_vpe_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)
 {
 	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
@@ -2453,7 +2592,7 @@ static int its_vpe_set_vcpu_affinity(struct irq_data *d, void *vcpu_info)
 		return 0;
 
 	case INVALL_VPE:
-		its_send_vinvall(vpe);
+		its_vpe_invall(vpe);
 		return 0;
 
 	default:
@@ -2551,7 +2690,7 @@ static struct irq_chip its_vpe_irq_chip = {
 
 static int its_vpe_id_alloc(void)
 {
-	return ida_simple_get(&its_vpeid_ida, 0, 1 << 16, GFP_KERNEL);
+	return ida_simple_get(&its_vpeid_ida, 0, ITS_MAX_VPEID, GFP_KERNEL);
 }
 
 static void its_vpe_id_free(u16 id)
@@ -2678,23 +2817,51 @@ static int its_vpe_irq_domain_alloc(struct irq_domain *domain, unsigned int virq
 	return err;
 }
 
-static void its_vpe_irq_domain_activate(struct irq_domain *domain,
-					struct irq_data *d)
+static int its_vpe_irq_domain_activate(struct irq_domain *domain,
+				       struct irq_data *d, bool early)
 {
 	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
+	struct its_node *its;
+
+	/* If we use the list map, we issue VMAPP on demand... */
+	if (its_list_map)
+		return 0;
 
 	/* Map the VPE to the first possible CPU */
 	vpe->col_idx = cpumask_first(cpu_online_mask);
-	its_send_vmapp(vpe, true);
-	its_send_vinvall(vpe);
+
+	list_for_each_entry(its, &its_nodes, entry) {
+		if (!its->is_v4)
+			continue;
+
+		its_send_vmapp(its, vpe, true);
+		its_send_vinvall(its, vpe);
+	}
+
+	irq_data_update_effective_affinity(d, cpumask_of(vpe->col_idx));
+
+	return 0;
 }
 
 static void its_vpe_irq_domain_deactivate(struct irq_domain *domain,
 					  struct irq_data *d)
 {
 	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
+	struct its_node *its;
 
-	its_send_vmapp(vpe, false);
+	/*
+	 * If we use the list map, we unmap the VPE once no VLPIs are
+	 * associated with the VM.
+	 */
+	if (its_list_map)
+		return;
+
+	list_for_each_entry(its, &its_nodes, entry) {
+		if (!its->is_v4)
+			continue;
+
+		its_send_vmapp(its, vpe, false);
+	}
 }
 
 static const struct irq_domain_ops its_vpe_domain_ops = {
@@ -2737,26 +2904,85 @@ static int its_force_quiescent(void __iomem *base)
 	}
 }
 
-static void __maybe_unused its_enable_quirk_cavium_22375(void *data)
+static bool __maybe_unused its_enable_quirk_cavium_22375(void *data)
 {
 	struct its_node *its = data;
 
+	/* erratum 22375: only alloc 8MB table size */
+	its->device_ids = 0x14;		/* 20 bits, 8MB */
 	its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_22375;
+
+	return true;
 }
 
-static void __maybe_unused its_enable_quirk_cavium_23144(void *data)
+static bool __maybe_unused its_enable_quirk_cavium_23144(void *data)
 {
 	struct its_node *its = data;
 
 	its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_23144;
+
+	return true;
 }
 
-static void __maybe_unused its_enable_quirk_qdf2400_e0065(void *data)
+static bool __maybe_unused its_enable_quirk_qdf2400_e0065(void *data)
 {
 	struct its_node *its = data;
 
 	/* On QDF2400, the size of the ITE is 16Bytes */
 	its->ite_size = 16;
+
+	return true;
+}
+
+static u64 its_irq_get_msi_base_pre_its(struct its_device *its_dev)
+{
+	struct its_node *its = its_dev->its;
+
+	/*
+	 * The Socionext Synquacer SoC has a so-called 'pre-ITS',
+	 * which maps 32-bit writes targeted at a separate window of
+	 * size '4 << device_id_bits' onto writes to GITS_TRANSLATER
+	 * with device ID taken from bits [device_id_bits + 1:2] of
+	 * the window offset.
+	 */
+	return its->pre_its_base + (its_dev->device_id << 2);
+}
+
+static bool __maybe_unused its_enable_quirk_socionext_synquacer(void *data)
+{
+	struct its_node *its = data;
+	u32 pre_its_window[2];
+	u32 ids;
+
+	if (!fwnode_property_read_u32_array(its->fwnode_handle,
+					   "socionext,synquacer-pre-its",
+					   pre_its_window,
+					   ARRAY_SIZE(pre_its_window))) {
+
+		its->pre_its_base = pre_its_window[0];
+		its->get_msi_base = its_irq_get_msi_base_pre_its;
+
+		ids = ilog2(pre_its_window[1]) - 2;
+		if (its->device_ids > ids)
+			its->device_ids = ids;
+
+		/* the pre-ITS breaks isolation, so disable MSI remapping */
+		its->msi_domain_flags &= ~IRQ_DOMAIN_FLAG_MSI_REMAP;
+		return true;
+	}
+	return false;
+}
+
+static bool __maybe_unused its_enable_quirk_hip07_161600802(void *data)
+{
+	struct its_node *its = data;
+
+	/*
+	 * Hip07 insists on using the wrong address for the VLPI
+	 * page. Trick it into doing the right thing...
+	 */
+	its->vlpi_redist_offset = SZ_128K;
+	return true;
 }
 
 static const struct gic_quirk its_quirks[] = {
@@ -2784,6 +3010,27 @@ static const struct gic_quirk its_quirks[] = {
 		.init	= its_enable_quirk_qdf2400_e0065,
 	},
 #endif
+#ifdef CONFIG_SOCIONEXT_SYNQUACER_PREITS
+	{
+		/*
+		 * The Socionext Synquacer SoC incorporates ARM's own GIC-500
+		 * implementation, but with a 'pre-ITS' added that requires
+		 * special handling in software.
+		 */
+		.desc	= "ITS: Socionext Synquacer pre-ITS",
+		.iidr	= 0x0001143b,
+		.mask	= 0xffffffff,
+		.init	= its_enable_quirk_socionext_synquacer,
+	},
+#endif
+#ifdef CONFIG_HISILICON_ERRATUM_161600802
+	{
+		.desc	= "ITS: Hip07 erratum 161600802",
+		.iidr	= 0x00000004,
+		.mask	= 0xffffffff,
+		.init	= its_enable_quirk_hip07_161600802,
+	},
+#endif
 	{
 	}
 };
@@ -2812,7 +3059,7 @@ static int its_init_domain(struct fwnode_handle *handle, struct its_node *its)
 
 	inner_domain->parent = its_parent;
 	irq_domain_update_bus_token(inner_domain, DOMAIN_BUS_NEXUS);
-	inner_domain->flags |= IRQ_DOMAIN_FLAG_MSI_REMAP;
+	inner_domain->flags |= its->msi_domain_flags;
 	info->ops = &its_msi_domain_ops;
 	info->data = its;
 	inner_domain->host_data = info;
@@ -2851,7 +3098,7 @@ static int its_init_vpe_domain(void)
 		return -ENOMEM;
 	}
 
-	BUG_ON(entries != vpe_proxy.dev->nr_ites);
+	BUG_ON(entries > vpe_proxy.dev->nr_ites);
 
 	raw_spin_lock_init(&vpe_proxy.lock);
 	vpe_proxy.next_victim = 0;
@@ -2873,8 +3120,8 @@ static int __init its_compute_its_list_map(struct resource *res,
 	 * locking. Should this change, we should address
 	 * this.
 	 */
-	its_number = find_first_zero_bit(&its_list_map, ITS_LIST_MAX);
-	if (its_number >= ITS_LIST_MAX) {
+	its_number = find_first_zero_bit(&its_list_map, GICv4_ITS_LIST_MAX);
+	if (its_number >= GICv4_ITS_LIST_MAX) {
 		pr_err("ITS@%pa: No ITSList entry available!\n",
 		       &res->start);
 		return -EINVAL;
@@ -2942,6 +3189,7 @@ static int __init its_probe_one(struct resource *res,
 	its->base = its_base;
 	its->phys_base = res->start;
 	its->ite_size = GITS_TYPER_ITT_ENTRY_SIZE(typer);
+	its->device_ids = GITS_TYPER_DEVBITS(typer);
 	its->is_v4 = !!(typer & GITS_TYPER_VLPIS);
 	if (its->is_v4) {
 		if (!(typer & GITS_TYPER_VMOVP)) {
@@ -2949,6 +3197,8 @@ static int __init its_probe_one(struct resource *res,
 			if (err < 0)
 				goto out_free_its;
 
+			its->list_nr = err;
+
 			pr_info("ITS@%pa: Using ITS number %d\n",
 				&res->start, err);
 		} else {
@@ -2965,6 +3215,9 @@ static int __init its_probe_one(struct resource *res,
 		goto out_free_its;
 	}
 	its->cmd_write = its->cmd_base;
+	its->fwnode_handle = handle;
+	its->get_msi_base = its_irq_get_msi_base;
+	its->msi_domain_flags = IRQ_DOMAIN_FLAG_MSI_REMAP;
 
 	its_enable_quirks(its);
 
diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c
index 519149ec9053..b54b55597ffb 100644
--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -55,6 +55,7 @@ struct gic_chip_data {
 	struct irq_domain	*domain;
 	u64			redist_stride;
 	u32			nr_redist_regions;
+	bool			has_rss;
 	unsigned int		irq_nr;
 	struct partition_desc	*ppi_descs[16];
 };
@@ -63,7 +64,9 @@ static struct gic_chip_data gic_data __read_mostly;
 static struct static_key supports_deactivate = STATIC_KEY_INIT_TRUE;
 
 static struct gic_kvm_info gic_v3_kvm_info;
+static DEFINE_PER_CPU(bool, has_rss);
 
+#define MPIDR_RS(mpidr)			(((mpidr) & 0xF0UL) >> 4)
 #define gic_data_rdist()		(this_cpu_ptr(gic_data.rdists.rdist))
 #define gic_data_rdist_rd_base()	(gic_data_rdist()->rd_base)
 #define gic_data_rdist_sgi_base()	(gic_data_rdist_rd_base() + SZ_64K)
@@ -526,6 +529,10 @@ static void gic_update_vlpi_properties(void)
 
 static void gic_cpu_sys_reg_init(void)
 {
+	int i, cpu = smp_processor_id();
+	u64 mpidr = cpu_logical_map(cpu);
+	u64 need_rss = MPIDR_RS(mpidr);
+
 	/*
 	 * Need to check that the SRE bit has actually been set. If
 	 * not, it means that SRE is disabled at EL2. We're going to
@@ -557,6 +564,30 @@ static void gic_cpu_sys_reg_init(void)
 
 	/* ... and let's hit the road... */
 	gic_write_grpen1(1);
+
+	/* Keep the RSS capability status in per_cpu variable */
+	per_cpu(has_rss, cpu) = !!(gic_read_ctlr() & ICC_CTLR_EL1_RSS);
+
+	/* Check all the CPUs have capable of sending SGIs to other CPUs */
+	for_each_online_cpu(i) {
+		bool have_rss = per_cpu(has_rss, i) && per_cpu(has_rss, cpu);
+
+		need_rss |= MPIDR_RS(cpu_logical_map(i));
+		if (need_rss && (!have_rss))
+			pr_crit("CPU%d (%lx) can't SGI CPU%d (%lx), no RSS\n",
+				cpu, (unsigned long)mpidr,
+				i, (unsigned long)cpu_logical_map(i));
+	}
+
+	/**
+	 * GIC spec says, when ICC_CTLR_EL1.RSS==1 and GICD_TYPER.RSS==0,
+	 * writing ICC_ASGI1R_EL1 register with RS != 0 is a CONSTRAINED
+	 * UNPREDICTABLE choice of :
+	 *   - The write is ignored.
+	 *   - The RS field is treated as 0.
+	 */
+	if (need_rss && (!gic_data.has_rss))
+		pr_crit_once("RSS is required but GICD doesn't support it\n");
 }
 
 static int gic_dist_supports_lpis(void)
@@ -591,6 +622,9 @@ static void gic_cpu_init(void)
 
 #ifdef CONFIG_SMP
 
+#define MPIDR_TO_SGI_RS(mpidr)	(MPIDR_RS(mpidr) << ICC_SGI1R_RS_SHIFT)
+#define MPIDR_TO_SGI_CLUSTER_ID(mpidr)	((mpidr) & ~0xFUL)
+
 static int gic_starting_cpu(unsigned int cpu)
 {
 	gic_cpu_init();
@@ -605,13 +639,6 @@ static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask,
 	u16 tlist = 0;
 
 	while (cpu < nr_cpu_ids) {
-		/*
-		 * If we ever get a cluster of more than 16 CPUs, just
-		 * scream and skip that CPU.
-		 */
-		if (WARN_ON((mpidr & 0xff) >= 16))
-			goto out;
-
 		tlist |= 1 << (mpidr & 0xf);
 
 		next_cpu = cpumask_next(cpu, mask);
@@ -621,7 +648,7 @@ static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask,
 
 		mpidr = cpu_logical_map(cpu);
 
-		if (cluster_id != (mpidr & ~0xffUL)) {
+		if (cluster_id != MPIDR_TO_SGI_CLUSTER_ID(mpidr)) {
 			cpu--;
 			goto out;
 		}
@@ -643,6 +670,7 @@ static void gic_send_sgi(u64 cluster_id, u16 tlist, unsigned int irq)
 	       MPIDR_TO_SGI_AFFINITY(cluster_id, 2)	|
 	       irq << ICC_SGI1R_SGI_ID_SHIFT		|
 	       MPIDR_TO_SGI_AFFINITY(cluster_id, 1)	|
+	       MPIDR_TO_SGI_RS(cluster_id)		|
 	       tlist << ICC_SGI1R_TARGET_LIST_SHIFT);
 
 	pr_debug("CPU%d: ICC_SGI1R_EL1 %llx\n", smp_processor_id(), val);
@@ -663,7 +691,7 @@ static void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 	smp_wmb();
 
 	for_each_cpu(cpu, mask) {
-		unsigned long cluster_id = cpu_logical_map(cpu) & ~0xffUL;
+		u64 cluster_id = MPIDR_TO_SGI_CLUSTER_ID(cpu_logical_map(cpu));
 		u16 tlist;
 
 		tlist = gic_compute_target_list(&cpu, mask, cluster_id);
@@ -1007,6 +1035,10 @@ static int __init gic_init_bases(void __iomem *dist_base,
 		goto out_free;
 	}
 
+	gic_data.has_rss = !!(typer & GICD_TYPER_RSS);
+	pr_info("Distributor has %sRange Selector support\n",
+		gic_data.has_rss ? "" : "no ");
+
 	set_handle_irq(gic_handle_irq);
 
 	gic_update_vlpi_properties();
@@ -1042,7 +1074,7 @@ static int get_cpu_number(struct device_node *dn)
 {
 	const __be32 *cell;
 	u64 hwid;
-	int i;
+	int cpu;
 
 	cell = of_get_property(dn, "reg", NULL);
 	if (!cell)
@@ -1056,9 +1088,9 @@ static int get_cpu_number(struct device_node *dn)
 	if (hwid & ~MPIDR_HWID_BITMASK)
 		return -1;
 
-	for (i = 0; i < num_possible_cpus(); i++)
-		if (cpu_logical_map(i) == hwid)
-			return i;
+	for_each_possible_cpu(cpu)
+		if (cpu_logical_map(cpu) == hwid)
+			return cpu;
 
 	return -1;
 }
diff --git a/drivers/irqchip/irq-gic-v4.c b/drivers/irqchip/irq-gic-v4.c
index 2370e6d9e603..cd0bcc3b7e33 100644
--- a/drivers/irqchip/irq-gic-v4.c
+++ b/drivers/irqchip/irq-gic-v4.c
@@ -173,7 +173,9 @@ int its_map_vlpi(int irq, struct its_vlpi_map *map)
 {
 	struct its_cmd_info info = {
 		.cmd_type = MAP_VLPI,
-		.map      = map,
+		{
+			.map      = map,
+		},
 	};
 
 	/*
@@ -189,7 +191,9 @@ int its_get_vlpi(int irq, struct its_vlpi_map *map)
 {
 	struct its_cmd_info info = {
 		.cmd_type = GET_VLPI,
-		.map      = map,
+		{
+			.map      = map,
+		},
 	};
 
 	return irq_set_vcpu_affinity(irq, &info);
@@ -205,7 +209,9 @@ int its_prop_update_vlpi(int irq, u8 config, bool inv)
 {
 	struct its_cmd_info info = {
 		.cmd_type = inv ? PROP_UPDATE_AND_INV_VLPI : PROP_UPDATE_VLPI,
-		.config   = config,
+		{
+			.config   = config,
+		},
 	};
 
 	return irq_set_vcpu_affinity(irq, &info);
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 651d726e8b12..f641e8e2c78d 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1256,6 +1256,19 @@ static void gic_teardown(struct gic_chip_data *gic)
 
 #ifdef CONFIG_OF
 static int gic_cnt __initdata;
+static bool gicv2_force_probe;
+
+static int __init gicv2_force_probe_cfg(char *buf)
+{
+	return strtobool(buf, &gicv2_force_probe);
+}
+early_param("irqchip.gicv2_force_probe", gicv2_force_probe_cfg);
+
+static bool gic_check_gicv2(void __iomem *base)
+{
+	u32 val = readl_relaxed(base + GIC_CPU_IDENT);
+	return (val & 0xff0fff) == 0x02043B;
+}
 
 static bool gic_check_eoimode(struct device_node *node, void __iomem **base)
 {
@@ -1265,20 +1278,60 @@ static bool gic_check_eoimode(struct device_node *node, void __iomem **base)
 
 	if (!is_hyp_mode_available())
 		return false;
-	if (resource_size(&cpuif_res) < SZ_8K)
-		return false;
-	if (resource_size(&cpuif_res) == SZ_128K) {
-		u32 val_low, val_high;
+	if (resource_size(&cpuif_res) < SZ_8K) {
+		void __iomem *alt;
+		/*
+		 * Check for a stupid firmware that only exposes the
+		 * first page of a GICv2.
+		 */
+		if (!gic_check_gicv2(*base))
+			return false;
 
+		if (!gicv2_force_probe) {
+			pr_warn("GIC: GICv2 detected, but range too small and irqchip.gicv2_force_probe not set\n");
+			return false;
+		}
+
+		alt = ioremap(cpuif_res.start, SZ_8K);
+		if (!alt)
+			return false;
+		if (!gic_check_gicv2(alt + SZ_4K)) {
+			/*
+			 * The first page was that of a GICv2, and
+			 * the second was *something*. Let's trust it
+			 * to be a GICv2, and update the mapping.
+			 */
+			pr_warn("GIC: GICv2 at %pa, but range is too small (broken DT?), assuming 8kB\n",
+				&cpuif_res.start);
+			iounmap(*base);
+			*base = alt;
+			return true;
+		}
+
+		/*
+		 * We detected *two* initial GICv2 pages in a
+		 * row. Could be a GICv2 aliased over two 64kB
+		 * pages. Update the resource, map the iospace, and
+		 * pray.
+		 */
+		iounmap(alt);
+		alt = ioremap(cpuif_res.start, SZ_128K);
+		if (!alt)
+			return false;
+		pr_warn("GIC: Aliased GICv2 at %pa, trying to find the canonical range over 128kB\n",
+			&cpuif_res.start);
+		cpuif_res.end = cpuif_res.start + SZ_128K -1;
+		iounmap(*base);
+		*base = alt;
+	}
+	if (resource_size(&cpuif_res) == SZ_128K) {
 		/*
-		 * Verify that we have the first 4kB of a GIC400
+		 * Verify that we have the first 4kB of a GICv2
 		 * aliased over the first 64kB by checking the
 		 * GICC_IIDR register on both ends.
 		 */
-		val_low = readl_relaxed(*base + GIC_CPU_IDENT);
-		val_high = readl_relaxed(*base + GIC_CPU_IDENT + 0xf000);
-		if ((val_low & 0xffff0fff) != 0x0202043B ||
-		    val_low != val_high)
+		if (!gic_check_gicv2(*base) ||
+		    !gic_check_gicv2(*base + 0xf000))
 			return false;
 
 		/*
diff --git a/drivers/irqchip/irq-imgpdc.c b/drivers/irqchip/irq-imgpdc.c
index c02d29c9dc05..1f59998e03f8 100644
--- a/drivers/irqchip/irq-imgpdc.c
+++ b/drivers/irqchip/irq-imgpdc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IMG PowerDown Controller (PDC)
  *
diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
new file mode 100644
index 000000000000..a59bdbc0b9bb
--- /dev/null
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -0,0 +1,419 @@
+/*
+ * Copyright (c) 2015 Endless Mobile, Inc.
+ * Author: Carlo Caione <carlo@endlessm.com>
+ * Copyright (c) 2016 BayLibre, SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#define NUM_CHANNEL 8
+#define MAX_INPUT_MUX 256
+
+#define REG_EDGE_POL	0x00
+#define REG_PIN_03_SEL	0x04
+#define REG_PIN_47_SEL	0x08
+#define REG_FILTER_SEL	0x0c
+
+#define REG_EDGE_POL_MASK(x)	(BIT(x) | BIT(16 + (x)))
+#define REG_EDGE_POL_EDGE(x)	BIT(x)
+#define REG_EDGE_POL_LOW(x)	BIT(16 + (x))
+#define REG_PIN_SEL_SHIFT(x)	(((x) % 4) * 8)
+#define REG_FILTER_SEL_SHIFT(x)	((x) * 4)
+
+struct meson_gpio_irq_params {
+	unsigned int nr_hwirq;
+};
+
+static const struct meson_gpio_irq_params meson8_params = {
+	.nr_hwirq = 134,
+};
+
+static const struct meson_gpio_irq_params meson8b_params = {
+	.nr_hwirq = 119,
+};
+
+static const struct meson_gpio_irq_params gxbb_params = {
+	.nr_hwirq = 133,
+};
+
+static const struct meson_gpio_irq_params gxl_params = {
+	.nr_hwirq = 110,
+};
+
+static const struct of_device_id meson_irq_gpio_matches[] = {
+	{ .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params },
+	{ .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params },
+	{ .compatible = "amlogic,meson-gxbb-gpio-intc", .data = &gxbb_params },
+	{ .compatible = "amlogic,meson-gxl-gpio-intc", .data = &gxl_params },
+	{ }
+};
+
+struct meson_gpio_irq_controller {
+	unsigned int nr_hwirq;
+	void __iomem *base;
+	u32 channel_irqs[NUM_CHANNEL];
+	DECLARE_BITMAP(channel_map, NUM_CHANNEL);
+	spinlock_t lock;
+};
+
+static void meson_gpio_irq_update_bits(struct meson_gpio_irq_controller *ctl,
+				       unsigned int reg, u32 mask, u32 val)
+{
+	u32 tmp;
+
+	tmp = readl_relaxed(ctl->base + reg);
+	tmp &= ~mask;
+	tmp |= val;
+	writel_relaxed(tmp, ctl->base + reg);
+}
+
+static unsigned int meson_gpio_irq_channel_to_reg(unsigned int channel)
+{
+	return (channel < 4) ? REG_PIN_03_SEL : REG_PIN_47_SEL;
+}
+
+static int
+meson_gpio_irq_request_channel(struct meson_gpio_irq_controller *ctl,
+			       unsigned long  hwirq,
+			       u32 **channel_hwirq)
+{
+	unsigned int reg, idx;
+
+	spin_lock(&ctl->lock);
+
+	/* Find a free channel */
+	idx = find_first_zero_bit(ctl->channel_map, NUM_CHANNEL);
+	if (idx >= NUM_CHANNEL) {
+		spin_unlock(&ctl->lock);
+		pr_err("No channel available\n");
+		return -ENOSPC;
+	}
+
+	/* Mark the channel as used */
+	set_bit(idx, ctl->channel_map);
+
+	/*
+	 * Setup the mux of the channel to route the signal of the pad
+	 * to the appropriate input of the GIC
+	 */
+	reg = meson_gpio_irq_channel_to_reg(idx);
+	meson_gpio_irq_update_bits(ctl, reg,
+				   0xff << REG_PIN_SEL_SHIFT(idx),
+				   hwirq << REG_PIN_SEL_SHIFT(idx));
+
+	/*
+	 * Get the hwirq number assigned to this channel through
+	 * a pointer the channel_irq table. The added benifit of this
+	 * method is that we can also retrieve the channel index with
+	 * it, using the table base.
+	 */
+	*channel_hwirq = &(ctl->channel_irqs[idx]);
+
+	spin_unlock(&ctl->lock);
+
+	pr_debug("hwirq %lu assigned to channel %d - irq %u\n",
+		 hwirq, idx, **channel_hwirq);
+
+	return 0;
+}
+
+static unsigned int
+meson_gpio_irq_get_channel_idx(struct meson_gpio_irq_controller *ctl,
+			       u32 *channel_hwirq)
+{
+	return channel_hwirq - ctl->channel_irqs;
+}
+
+static void
+meson_gpio_irq_release_channel(struct meson_gpio_irq_controller *ctl,
+			       u32 *channel_hwirq)
+{
+	unsigned int idx;
+
+	idx = meson_gpio_irq_get_channel_idx(ctl, channel_hwirq);
+	clear_bit(idx, ctl->channel_map);
+}
+
+static int meson_gpio_irq_type_setup(struct meson_gpio_irq_controller *ctl,
+				     unsigned int type,
+				     u32 *channel_hwirq)
+{
+	u32 val = 0;
+	unsigned int idx;
+
+	idx = meson_gpio_irq_get_channel_idx(ctl, channel_hwirq);
+
+	/*
+	 * The controller has a filter block to operate in either LEVEL or
+	 * EDGE mode, then signal is sent to the GIC. To enable LEVEL_LOW and
+	 * EDGE_FALLING support (which the GIC does not support), the filter
+	 * block is also able to invert the input signal it gets before
+	 * providing it to the GIC.
+	 */
+	type &= IRQ_TYPE_SENSE_MASK;
+
+	if (type == IRQ_TYPE_EDGE_BOTH)
+		return -EINVAL;
+
+	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+		val |= REG_EDGE_POL_EDGE(idx);
+
+	if (type & (IRQ_TYPE_LEVEL_LOW | IRQ_TYPE_EDGE_FALLING))
+		val |= REG_EDGE_POL_LOW(idx);
+
+	spin_lock(&ctl->lock);
+
+	meson_gpio_irq_update_bits(ctl, REG_EDGE_POL,
+				   REG_EDGE_POL_MASK(idx), val);
+
+	spin_unlock(&ctl->lock);
+
+	return 0;
+}
+
+static unsigned int meson_gpio_irq_type_output(unsigned int type)
+{
+	unsigned int sense = type & IRQ_TYPE_SENSE_MASK;
+
+	type &= ~IRQ_TYPE_SENSE_MASK;
+
+	/*
+	 * The polarity of the signal provided to the GIC should always
+	 * be high.
+	 */
+	if (sense & (IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW))
+		type |= IRQ_TYPE_LEVEL_HIGH;
+	else if (sense & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
+		type |= IRQ_TYPE_EDGE_RISING;
+
+	return type;
+}
+
+static int meson_gpio_irq_set_type(struct irq_data *data, unsigned int type)
+{
+	struct meson_gpio_irq_controller *ctl = data->domain->host_data;
+	u32 *channel_hwirq = irq_data_get_irq_chip_data(data);
+	int ret;
+
+	ret = meson_gpio_irq_type_setup(ctl, type, channel_hwirq);
+	if (ret)
+		return ret;
+
+	return irq_chip_set_type_parent(data,
+					meson_gpio_irq_type_output(type));
+}
+
+static struct irq_chip meson_gpio_irq_chip = {
+	.name			= "meson-gpio-irqchip",
+	.irq_mask		= irq_chip_mask_parent,
+	.irq_unmask		= irq_chip_unmask_parent,
+	.irq_eoi		= irq_chip_eoi_parent,
+	.irq_set_type		= meson_gpio_irq_set_type,
+	.irq_retrigger		= irq_chip_retrigger_hierarchy,
+#ifdef CONFIG_SMP
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+#endif
+	.flags			= IRQCHIP_SET_TYPE_MASKED,
+};
+
+static int meson_gpio_irq_domain_translate(struct irq_domain *domain,
+					   struct irq_fwspec *fwspec,
+					   unsigned long *hwirq,
+					   unsigned int *type)
+{
+	if (is_of_node(fwspec->fwnode) && fwspec->param_count == 2) {
+		*hwirq	= fwspec->param[0];
+		*type	= fwspec->param[1];
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static int meson_gpio_irq_allocate_gic_irq(struct irq_domain *domain,
+					   unsigned int virq,
+					   u32 hwirq,
+					   unsigned int type)
+{
+	struct irq_fwspec fwspec;
+
+	fwspec.fwnode = domain->parent->fwnode;
+	fwspec.param_count = 3;
+	fwspec.param[0] = 0;	/* SPI */
+	fwspec.param[1] = hwirq;
+	fwspec.param[2] = meson_gpio_irq_type_output(type);
+
+	return irq_domain_alloc_irqs_parent(domain, virq, 1, &fwspec);
+}
+
+static int meson_gpio_irq_domain_alloc(struct irq_domain *domain,
+				       unsigned int virq,
+				       unsigned int nr_irqs,
+				       void *data)
+{
+	struct irq_fwspec *fwspec = data;
+	struct meson_gpio_irq_controller *ctl = domain->host_data;
+	unsigned long hwirq;
+	u32 *channel_hwirq;
+	unsigned int type;
+	int ret;
+
+	if (WARN_ON(nr_irqs != 1))
+		return -EINVAL;
+
+	ret = meson_gpio_irq_domain_translate(domain, fwspec, &hwirq, &type);
+	if (ret)
+		return ret;
+
+	ret = meson_gpio_irq_request_channel(ctl, hwirq, &channel_hwirq);
+	if (ret)
+		return ret;
+
+	ret = meson_gpio_irq_allocate_gic_irq(domain, virq,
+					      *channel_hwirq, type);
+	if (ret < 0) {
+		pr_err("failed to allocate gic irq %u\n", *channel_hwirq);
+		meson_gpio_irq_release_channel(ctl, channel_hwirq);
+		return ret;
+	}
+
+	irq_domain_set_hwirq_and_chip(domain, virq, hwirq,
+				      &meson_gpio_irq_chip, channel_hwirq);
+
+	return 0;
+}
+
+static void meson_gpio_irq_domain_free(struct irq_domain *domain,
+				       unsigned int virq,
+				       unsigned int nr_irqs)
+{
+	struct meson_gpio_irq_controller *ctl = domain->host_data;
+	struct irq_data *irq_data;
+	u32 *channel_hwirq;
+
+	if (WARN_ON(nr_irqs != 1))
+		return;
+
+	irq_domain_free_irqs_parent(domain, virq, 1);
+
+	irq_data = irq_domain_get_irq_data(domain, virq);
+	channel_hwirq = irq_data_get_irq_chip_data(irq_data);
+
+	meson_gpio_irq_release_channel(ctl, channel_hwirq);
+}
+
+static const struct irq_domain_ops meson_gpio_irq_domain_ops = {
+	.alloc		= meson_gpio_irq_domain_alloc,
+	.free		= meson_gpio_irq_domain_free,
+	.translate	= meson_gpio_irq_domain_translate,
+};
+
+static int __init meson_gpio_irq_parse_dt(struct device_node *node,
+					  struct meson_gpio_irq_controller *ctl)
+{
+	const struct of_device_id *match;
+	const struct meson_gpio_irq_params *params;
+	int ret;
+
+	match = of_match_node(meson_irq_gpio_matches, node);
+	if (!match)
+		return -ENODEV;
+
+	params = match->data;
+	ctl->nr_hwirq = params->nr_hwirq;
+
+	ret = of_property_read_variable_u32_array(node,
+						  "amlogic,channel-interrupts",
+						  ctl->channel_irqs,
+						  NUM_CHANNEL,
+						  NUM_CHANNEL);
+	if (ret < 0) {
+		pr_err("can't get %d channel interrupts\n", NUM_CHANNEL);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int __init meson_gpio_irq_of_init(struct device_node *node,
+					 struct device_node *parent)
+{
+	struct irq_domain *domain, *parent_domain;
+	struct meson_gpio_irq_controller *ctl;
+	int ret;
+
+	if (!parent) {
+		pr_err("missing parent interrupt node\n");
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent);
+	if (!parent_domain) {
+		pr_err("unable to obtain parent domain\n");
+		return -ENXIO;
+	}
+
+	ctl = kzalloc(sizeof(*ctl), GFP_KERNEL);
+	if (!ctl)
+		return -ENOMEM;
+
+	spin_lock_init(&ctl->lock);
+
+	ctl->base = of_iomap(node, 0);
+	if (!ctl->base) {
+		ret = -ENOMEM;
+		goto free_ctl;
+	}
+
+	ret = meson_gpio_irq_parse_dt(node, ctl);
+	if (ret)
+		goto free_channel_irqs;
+
+	domain = irq_domain_create_hierarchy(parent_domain, 0, ctl->nr_hwirq,
+					     of_node_to_fwnode(node),
+					     &meson_gpio_irq_domain_ops,
+					     ctl);
+	if (!domain) {
+		pr_err("failed to add domain\n");
+		ret = -ENODEV;
+		goto free_channel_irqs;
+	}
+
+	pr_info("%d to %d gpio interrupt mux initialized\n",
+		ctl->nr_hwirq, NUM_CHANNEL);
+
+	return 0;
+
+free_channel_irqs:
+	iounmap(ctl->base);
+free_ctl:
+	kfree(ctl);
+
+	return ret;
+}
+
+IRQCHIP_DECLARE(meson_gpio_intc, "amlogic,meson-gpio-intc",
+		meson_gpio_irq_of_init);
diff --git a/drivers/irqchip/irq-metag-ext.c b/drivers/irqchip/irq-metag-ext.c
index be7216bfb8dd..e67483161f0f 100644
--- a/drivers/irqchip/irq-metag-ext.c
+++ b/drivers/irqchip/irq-metag-ext.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Meta External interrupt code.
  *
diff --git a/drivers/irqchip/irq-metag.c b/drivers/irqchip/irq-metag.c
index a5f053bd2f44..857b946747eb 100644
--- a/drivers/irqchip/irq-metag.c
+++ b/drivers/irqchip/irq-metag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Meta internal (HWSTATMETA) interrupt code.
  *
diff --git a/drivers/irqchip/irq-mips-cpu.c b/drivers/irqchip/irq-mips-cpu.c
index 14461cbfab2f..66f97fde13d8 100644
--- a/drivers/irqchip/irq-mips-cpu.c
+++ b/drivers/irqchip/irq-mips-cpu.c
@@ -101,7 +101,7 @@ static void mips_mt_send_ipi(struct irq_data *d, unsigned int cpu)
 	local_irq_save(flags);
 
 	/* We can only send IPIs to VPEs within the local core */
-	WARN_ON(cpu_data[cpu].core != current_cpu_data.core);
+	WARN_ON(!cpus_are_siblings(smp_processor_id(), cpu));
 
 	vpflags = dvpe();
 	settc(cpu_vpe_id(&cpu_data[cpu]));
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index b3a60da088db..ef92a4d2038e 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -6,240 +6,70 @@
  * Copyright (C) 2008 Ralf Baechle (ralf@linux-mips.org)
  * Copyright (C) 2012 MIPS Technologies, Inc.  All rights reserved.
  */
+
+#define pr_fmt(fmt) "irq-mips-gic: " fmt
+
 #include <linux/bitmap.h>
 #include <linux/clocksource.h>
+#include <linux/cpuhotplug.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irqchip.h>
-#include <linux/irqchip/mips-gic.h>
 #include <linux/of_address.h>
+#include <linux/percpu.h>
 #include <linux/sched.h>
 #include <linux/smp.h>
 
-#include <asm/mips-cm.h>
+#include <asm/mips-cps.h>
 #include <asm/setup.h>
 #include <asm/traps.h>
 
 #include <dt-bindings/interrupt-controller/mips-gic.h>
 
-unsigned int gic_present;
+#define GIC_MAX_INTRS		256
+#define GIC_MAX_LONGS		BITS_TO_LONGS(GIC_MAX_INTRS)
 
-struct gic_pcpu_mask {
-	DECLARE_BITMAP(pcpu_mask, GIC_MAX_INTRS);
-};
+/* Add 2 to convert GIC CPU pin to core interrupt */
+#define GIC_CPU_PIN_OFFSET	2
+
+/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
+#define GIC_PIN_TO_VEC_OFFSET	1
 
-static unsigned long __gic_base_addr;
+/* Convert between local/shared IRQ number and GIC HW IRQ number. */
+#define GIC_LOCAL_HWIRQ_BASE	0
+#define GIC_LOCAL_TO_HWIRQ(x)	(GIC_LOCAL_HWIRQ_BASE + (x))
+#define GIC_HWIRQ_TO_LOCAL(x)	((x) - GIC_LOCAL_HWIRQ_BASE)
+#define GIC_SHARED_HWIRQ_BASE	GIC_NUM_LOCAL_INTRS
+#define GIC_SHARED_TO_HWIRQ(x)	(GIC_SHARED_HWIRQ_BASE + (x))
+#define GIC_HWIRQ_TO_SHARED(x)	((x) - GIC_SHARED_HWIRQ_BASE)
+
+void __iomem *mips_gic_base;
+
+DEFINE_PER_CPU_READ_MOSTLY(unsigned long[GIC_MAX_LONGS], pcpu_masks);
 
-static void __iomem *gic_base;
-static struct gic_pcpu_mask pcpu_masks[NR_CPUS];
 static DEFINE_SPINLOCK(gic_lock);
 static struct irq_domain *gic_irq_domain;
 static struct irq_domain *gic_ipi_domain;
 static int gic_shared_intrs;
-static int gic_vpes;
 static unsigned int gic_cpu_pin;
 static unsigned int timer_cpu_pin;
 static struct irq_chip gic_level_irq_controller, gic_edge_irq_controller;
-DECLARE_BITMAP(ipi_resrv, GIC_MAX_INTRS);
-DECLARE_BITMAP(ipi_available, GIC_MAX_INTRS);
-
-static void __gic_irq_dispatch(void);
-
-static inline u32 gic_read32(unsigned int reg)
-{
-	return __raw_readl(gic_base + reg);
-}
-
-static inline u64 gic_read64(unsigned int reg)
-{
-	return __raw_readq(gic_base + reg);
-}
-
-static inline unsigned long gic_read(unsigned int reg)
-{
-	if (!mips_cm_is64)
-		return gic_read32(reg);
-	else
-		return gic_read64(reg);
-}
-
-static inline void gic_write32(unsigned int reg, u32 val)
-{
-	return __raw_writel(val, gic_base + reg);
-}
-
-static inline void gic_write64(unsigned int reg, u64 val)
-{
-	return __raw_writeq(val, gic_base + reg);
-}
-
-static inline void gic_write(unsigned int reg, unsigned long val)
-{
-	if (!mips_cm_is64)
-		return gic_write32(reg, (u32)val);
-	else
-		return gic_write64(reg, (u64)val);
-}
-
-static inline void gic_update_bits(unsigned int reg, unsigned long mask,
-				   unsigned long val)
-{
-	unsigned long regval;
-
-	regval = gic_read(reg);
-	regval &= ~mask;
-	regval |= val;
-	gic_write(reg, regval);
-}
-
-static inline void gic_reset_mask(unsigned int intr)
-{
-	gic_write(GIC_REG(SHARED, GIC_SH_RMASK) + GIC_INTR_OFS(intr),
-		  1ul << GIC_INTR_BIT(intr));
-}
-
-static inline void gic_set_mask(unsigned int intr)
-{
-	gic_write(GIC_REG(SHARED, GIC_SH_SMASK) + GIC_INTR_OFS(intr),
-		  1ul << GIC_INTR_BIT(intr));
-}
-
-static inline void gic_set_polarity(unsigned int intr, unsigned int pol)
-{
-	gic_update_bits(GIC_REG(SHARED, GIC_SH_SET_POLARITY) +
-			GIC_INTR_OFS(intr), 1ul << GIC_INTR_BIT(intr),
-			(unsigned long)pol << GIC_INTR_BIT(intr));
-}
-
-static inline void gic_set_trigger(unsigned int intr, unsigned int trig)
-{
-	gic_update_bits(GIC_REG(SHARED, GIC_SH_SET_TRIGGER) +
-			GIC_INTR_OFS(intr), 1ul << GIC_INTR_BIT(intr),
-			(unsigned long)trig << GIC_INTR_BIT(intr));
-}
-
-static inline void gic_set_dual_edge(unsigned int intr, unsigned int dual)
-{
-	gic_update_bits(GIC_REG(SHARED, GIC_SH_SET_DUAL) + GIC_INTR_OFS(intr),
-			1ul << GIC_INTR_BIT(intr),
-			(unsigned long)dual << GIC_INTR_BIT(intr));
-}
-
-static inline void gic_map_to_pin(unsigned int intr, unsigned int pin)
-{
-	gic_write32(GIC_REG(SHARED, GIC_SH_INTR_MAP_TO_PIN_BASE) +
-		    GIC_SH_MAP_TO_PIN(intr), GIC_MAP_TO_PIN_MSK | pin);
-}
-
-static inline void gic_map_to_vpe(unsigned int intr, unsigned int vpe)
-{
-	gic_write(GIC_REG(SHARED, GIC_SH_INTR_MAP_TO_VPE_BASE) +
-		  GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe),
-		  GIC_SH_MAP_TO_VPE_REG_BIT(vpe));
-}
-
-#ifdef CONFIG_CLKSRC_MIPS_GIC
-u64 notrace gic_read_count(void)
-{
-	unsigned int hi, hi2, lo;
-
-	if (mips_cm_is64)
-		return (u64)gic_read(GIC_REG(SHARED, GIC_SH_COUNTER));
-
-	do {
-		hi = gic_read32(GIC_REG(SHARED, GIC_SH_COUNTER_63_32));
-		lo = gic_read32(GIC_REG(SHARED, GIC_SH_COUNTER_31_00));
-		hi2 = gic_read32(GIC_REG(SHARED, GIC_SH_COUNTER_63_32));
-	} while (hi2 != hi);
-
-	return (((u64) hi) << 32) + lo;
-}
-
-unsigned int gic_get_count_width(void)
-{
-	unsigned int bits, config;
-
-	config = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
-	bits = 32 + 4 * ((config & GIC_SH_CONFIG_COUNTBITS_MSK) >>
-			 GIC_SH_CONFIG_COUNTBITS_SHF);
-
-	return bits;
-}
+static DECLARE_BITMAP(ipi_resrv, GIC_MAX_INTRS);
+static DECLARE_BITMAP(ipi_available, GIC_MAX_INTRS);
 
-void notrace gic_write_compare(u64 cnt)
-{
-	if (mips_cm_is64) {
-		gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE), cnt);
-	} else {
-		gic_write32(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI),
-					(int)(cnt >> 32));
-		gic_write32(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_LO),
-					(int)(cnt & 0xffffffff));
-	}
-}
-
-void notrace gic_write_cpu_compare(u64 cnt, int cpu)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-
-	gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR), mips_cm_vp_id(cpu));
-
-	if (mips_cm_is64) {
-		gic_write(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE), cnt);
-	} else {
-		gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE_HI),
-					(int)(cnt >> 32));
-		gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE_LO),
-					(int)(cnt & 0xffffffff));
-	}
-
-	local_irq_restore(flags);
-}
-
-u64 gic_read_compare(void)
-{
-	unsigned int hi, lo;
+static struct gic_all_vpes_chip_data {
+	u32	map;
+	bool	mask;
+} gic_all_vpes_chip_data[GIC_NUM_LOCAL_INTRS];
 
-	if (mips_cm_is64)
-		return (u64)gic_read(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE));
-
-	hi = gic_read32(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_HI));
-	lo = gic_read32(GIC_REG(VPE_LOCAL, GIC_VPE_COMPARE_LO));
-
-	return (((u64) hi) << 32) + lo;
-}
-
-void gic_start_count(void)
-{
-	u32 gicconfig;
-
-	/* Start the counter */
-	gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
-	gicconfig &= ~(1 << GIC_SH_CONFIG_COUNTSTOP_SHF);
-	gic_write(GIC_REG(SHARED, GIC_SH_CONFIG), gicconfig);
-}
-
-void gic_stop_count(void)
-{
-	u32 gicconfig;
-
-	/* Stop the counter */
-	gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
-	gicconfig |= 1 << GIC_SH_CONFIG_COUNTSTOP_SHF;
-	gic_write(GIC_REG(SHARED, GIC_SH_CONFIG), gicconfig);
-}
-
-#endif
-
-unsigned gic_read_local_vp_id(void)
+static void gic_clear_pcpu_masks(unsigned int intr)
 {
-	unsigned long ident;
+	unsigned int i;
 
-	ident = gic_read(GIC_REG(VPE_LOCAL, GIC_VP_IDENT));
-	return ident & GIC_VP_IDENT_VCNUM_MSK;
+	/* Clear the interrupt's bit in all pcpu_masks */
+	for_each_possible_cpu(i)
+		clear_bit(intr, per_cpu_ptr(pcpu_masks, i));
 }
 
 static bool gic_local_irq_is_routable(int intr)
@@ -250,17 +80,17 @@ static bool gic_local_irq_is_routable(int intr)
 	if (cpu_has_veic)
 		return true;
 
-	vpe_ctl = gic_read32(GIC_REG(VPE_LOCAL, GIC_VPE_CTL));
+	vpe_ctl = read_gic_vl_ctl();
 	switch (intr) {
 	case GIC_LOCAL_INT_TIMER:
-		return vpe_ctl & GIC_VPE_CTL_TIMER_RTBL_MSK;
+		return vpe_ctl & GIC_VX_CTL_TIMER_ROUTABLE;
 	case GIC_LOCAL_INT_PERFCTR:
-		return vpe_ctl & GIC_VPE_CTL_PERFCNT_RTBL_MSK;
+		return vpe_ctl & GIC_VX_CTL_PERFCNT_ROUTABLE;
 	case GIC_LOCAL_INT_FDC:
-		return vpe_ctl & GIC_VPE_CTL_FDC_RTBL_MSK;
+		return vpe_ctl & GIC_VX_CTL_FDC_ROUTABLE;
 	case GIC_LOCAL_INT_SWINT0:
 	case GIC_LOCAL_INT_SWINT1:
-		return vpe_ctl & GIC_VPE_CTL_SWINT_RTBL_MSK;
+		return vpe_ctl & GIC_VX_CTL_SWINT_ROUTABLE;
 	default:
 		return true;
 	}
@@ -272,15 +102,14 @@ static void gic_bind_eic_interrupt(int irq, int set)
 	irq -= GIC_PIN_TO_VEC_OFFSET;
 
 	/* Set irq to use shadow set */
-	gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_EIC_SHADOW_SET_BASE) +
-		  GIC_VPE_EIC_SS(irq), set);
+	write_gic_vl_eic_shadow_set(irq, set);
 }
 
 static void gic_send_ipi(struct irq_data *d, unsigned int cpu)
 {
 	irq_hw_number_t hwirq = GIC_HWIRQ_TO_SHARED(irqd_to_hwirq(d));
 
-	gic_write(GIC_REG(SHARED, GIC_SH_WEDGE), GIC_SH_WEDGE_SET(hwirq));
+	write_gic_wedge(GIC_WEDGE_RW | hwirq);
 }
 
 int gic_get_c0_compare_int(void)
@@ -316,47 +145,22 @@ int gic_get_c0_fdc_int(void)
 				  GIC_LOCAL_TO_HWIRQ(GIC_LOCAL_INT_FDC));
 }
 
-int gic_get_usm_range(struct resource *gic_usm_res)
-{
-	if (!gic_present)
-		return -1;
-
-	gic_usm_res->start = __gic_base_addr + USM_VISIBLE_SECTION_OFS;
-	gic_usm_res->end = gic_usm_res->start + (USM_VISIBLE_SECTION_SIZE - 1);
-
-	return 0;
-}
-
 static void gic_handle_shared_int(bool chained)
 {
-	unsigned int i, intr, virq, gic_reg_step = mips_cm_is64 ? 8 : 4;
+	unsigned int intr, virq;
 	unsigned long *pcpu_mask;
-	unsigned long pending_reg, intrmask_reg;
 	DECLARE_BITMAP(pending, GIC_MAX_INTRS);
-	DECLARE_BITMAP(intrmask, GIC_MAX_INTRS);
 
 	/* Get per-cpu bitmaps */
-	pcpu_mask = pcpu_masks[smp_processor_id()].pcpu_mask;
-
-	pending_reg = GIC_REG(SHARED, GIC_SH_PEND);
-	intrmask_reg = GIC_REG(SHARED, GIC_SH_MASK);
+	pcpu_mask = this_cpu_ptr(pcpu_masks);
 
-	for (i = 0; i < BITS_TO_LONGS(gic_shared_intrs); i++) {
-		pending[i] = gic_read(pending_reg);
-		intrmask[i] = gic_read(intrmask_reg);
-		pending_reg += gic_reg_step;
-		intrmask_reg += gic_reg_step;
-
-		if (!IS_ENABLED(CONFIG_64BIT) || mips_cm_is64)
-			continue;
-
-		pending[i] |= (u64)gic_read(pending_reg) << 32;
-		intrmask[i] |= (u64)gic_read(intrmask_reg) << 32;
-		pending_reg += gic_reg_step;
-		intrmask_reg += gic_reg_step;
-	}
+	if (mips_cm_is64)
+		__ioread64_copy(pending, addr_gic_pend(),
+				DIV_ROUND_UP(gic_shared_intrs, 64));
+	else
+		__ioread32_copy(pending, addr_gic_pend(),
+				DIV_ROUND_UP(gic_shared_intrs, 32));
 
-	bitmap_and(pending, pending, intrmask, gic_shared_intrs);
 	bitmap_and(pending, pending, pcpu_mask, gic_shared_intrs);
 
 	for_each_set_bit(intr, pending, gic_shared_intrs) {
@@ -371,63 +175,73 @@ static void gic_handle_shared_int(bool chained)
 
 static void gic_mask_irq(struct irq_data *d)
 {
-	gic_reset_mask(GIC_HWIRQ_TO_SHARED(d->hwirq));
+	unsigned int intr = GIC_HWIRQ_TO_SHARED(d->hwirq);
+
+	write_gic_rmask(intr);
+	gic_clear_pcpu_masks(intr);
 }
 
 static void gic_unmask_irq(struct irq_data *d)
 {
-	gic_set_mask(GIC_HWIRQ_TO_SHARED(d->hwirq));
+	unsigned int intr = GIC_HWIRQ_TO_SHARED(d->hwirq);
+	unsigned int cpu;
+
+	write_gic_smask(intr);
+
+	gic_clear_pcpu_masks(intr);
+	cpu = cpumask_first(irq_data_get_effective_affinity_mask(d));
+	set_bit(intr, per_cpu_ptr(pcpu_masks, cpu));
 }
 
 static void gic_ack_irq(struct irq_data *d)
 {
 	unsigned int irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
 
-	gic_write(GIC_REG(SHARED, GIC_SH_WEDGE), GIC_SH_WEDGE_CLR(irq));
+	write_gic_wedge(irq);
 }
 
 static int gic_set_type(struct irq_data *d, unsigned int type)
 {
-	unsigned int irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
+	unsigned int irq, pol, trig, dual;
 	unsigned long flags;
-	bool is_edge;
+
+	irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
 
 	spin_lock_irqsave(&gic_lock, flags);
 	switch (type & IRQ_TYPE_SENSE_MASK) {
 	case IRQ_TYPE_EDGE_FALLING:
-		gic_set_polarity(irq, GIC_POL_NEG);
-		gic_set_trigger(irq, GIC_TRIG_EDGE);
-		gic_set_dual_edge(irq, GIC_TRIG_DUAL_DISABLE);
-		is_edge = true;
+		pol = GIC_POL_FALLING_EDGE;
+		trig = GIC_TRIG_EDGE;
+		dual = GIC_DUAL_SINGLE;
 		break;
 	case IRQ_TYPE_EDGE_RISING:
-		gic_set_polarity(irq, GIC_POL_POS);
-		gic_set_trigger(irq, GIC_TRIG_EDGE);
-		gic_set_dual_edge(irq, GIC_TRIG_DUAL_DISABLE);
-		is_edge = true;
+		pol = GIC_POL_RISING_EDGE;
+		trig = GIC_TRIG_EDGE;
+		dual = GIC_DUAL_SINGLE;
 		break;
 	case IRQ_TYPE_EDGE_BOTH:
-		/* polarity is irrelevant in this case */
-		gic_set_trigger(irq, GIC_TRIG_EDGE);
-		gic_set_dual_edge(irq, GIC_TRIG_DUAL_ENABLE);
-		is_edge = true;
+		pol = 0; /* Doesn't matter */
+		trig = GIC_TRIG_EDGE;
+		dual = GIC_DUAL_DUAL;
 		break;
 	case IRQ_TYPE_LEVEL_LOW:
-		gic_set_polarity(irq, GIC_POL_NEG);
-		gic_set_trigger(irq, GIC_TRIG_LEVEL);
-		gic_set_dual_edge(irq, GIC_TRIG_DUAL_DISABLE);
-		is_edge = false;
+		pol = GIC_POL_ACTIVE_LOW;
+		trig = GIC_TRIG_LEVEL;
+		dual = GIC_DUAL_SINGLE;
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:
 	default:
-		gic_set_polarity(irq, GIC_POL_POS);
-		gic_set_trigger(irq, GIC_TRIG_LEVEL);
-		gic_set_dual_edge(irq, GIC_TRIG_DUAL_DISABLE);
-		is_edge = false;
+		pol = GIC_POL_ACTIVE_HIGH;
+		trig = GIC_TRIG_LEVEL;
+		dual = GIC_DUAL_SINGLE;
 		break;
 	}
 
-	if (is_edge)
+	change_gic_pol(irq, pol);
+	change_gic_trig(irq, trig);
+	change_gic_dual(irq, dual);
+
+	if (trig == GIC_TRIG_EDGE)
 		irq_set_chip_handler_name_locked(d, &gic_edge_irq_controller,
 						 handle_edge_irq, NULL);
 	else
@@ -443,32 +257,28 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *cpumask,
 			    bool force)
 {
 	unsigned int irq = GIC_HWIRQ_TO_SHARED(d->hwirq);
-	cpumask_t	tmp = CPU_MASK_NONE;
-	unsigned long	flags;
-	int		i, cpu;
+	unsigned long flags;
+	unsigned int cpu;
 
-	cpumask_and(&tmp, cpumask, cpu_online_mask);
-	if (cpumask_empty(&tmp))
+	cpu = cpumask_first_and(cpumask, cpu_online_mask);
+	if (cpu >= NR_CPUS)
 		return -EINVAL;
 
-	cpu = cpumask_first(&tmp);
-
 	/* Assumption : cpumask refers to a single CPU */
 	spin_lock_irqsave(&gic_lock, flags);
 
 	/* Re-route this IRQ */
-	gic_map_to_vpe(irq, mips_cm_vp_id(cpu));
+	write_gic_map_vp(irq, BIT(mips_cm_vp_id(cpu)));
 
 	/* Update the pcpu_masks */
-	for (i = 0; i < min(gic_vpes, NR_CPUS); i++)
-		clear_bit(irq, pcpu_masks[i].pcpu_mask);
-	set_bit(irq, pcpu_masks[cpu].pcpu_mask);
+	gic_clear_pcpu_masks(irq);
+	if (read_gic_mask(irq))
+		set_bit(irq, per_cpu_ptr(pcpu_masks, cpu));
 
-	cpumask_copy(irq_data_get_affinity_mask(d), cpumask);
 	irq_data_update_effective_affinity(d, cpumask_of(cpu));
 	spin_unlock_irqrestore(&gic_lock, flags);
 
-	return IRQ_SET_MASK_OK_NOCOPY;
+	return IRQ_SET_MASK_OK;
 }
 #endif
 
@@ -499,8 +309,8 @@ static void gic_handle_local_int(bool chained)
 	unsigned long pending, masked;
 	unsigned int intr, virq;
 
-	pending = gic_read32(GIC_REG(VPE_LOCAL, GIC_VPE_PEND));
-	masked = gic_read32(GIC_REG(VPE_LOCAL, GIC_VPE_MASK));
+	pending = read_gic_vl_pend();
+	masked = read_gic_vl_mask();
 
 	bitmap_and(&pending, &pending, &masked, GIC_NUM_LOCAL_INTRS);
 
@@ -518,14 +328,14 @@ static void gic_mask_local_irq(struct irq_data *d)
 {
 	int intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
 
-	gic_write32(GIC_REG(VPE_LOCAL, GIC_VPE_RMASK), 1 << intr);
+	write_gic_vl_rmask(BIT(intr));
 }
 
 static void gic_unmask_local_irq(struct irq_data *d)
 {
 	int intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
 
-	gic_write32(GIC_REG(VPE_LOCAL, GIC_VPE_SMASK), 1 << intr);
+	write_gic_vl_smask(BIT(intr));
 }
 
 static struct irq_chip gic_local_irq_controller = {
@@ -536,38 +346,58 @@ static struct irq_chip gic_local_irq_controller = {
 
 static void gic_mask_local_irq_all_vpes(struct irq_data *d)
 {
-	int intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
-	int i;
+	struct gic_all_vpes_chip_data *cd;
 	unsigned long flags;
+	int intr, cpu;
+
+	intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
+	cd = irq_data_get_irq_chip_data(d);
+	cd->mask = false;
 
 	spin_lock_irqsave(&gic_lock, flags);
-	for (i = 0; i < gic_vpes; i++) {
-		gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR),
-			  mips_cm_vp_id(i));
-		gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_RMASK), 1 << intr);
+	for_each_online_cpu(cpu) {
+		write_gic_vl_other(mips_cm_vp_id(cpu));
+		write_gic_vo_rmask(BIT(intr));
 	}
 	spin_unlock_irqrestore(&gic_lock, flags);
 }
 
 static void gic_unmask_local_irq_all_vpes(struct irq_data *d)
 {
-	int intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
-	int i;
+	struct gic_all_vpes_chip_data *cd;
 	unsigned long flags;
+	int intr, cpu;
+
+	intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
+	cd = irq_data_get_irq_chip_data(d);
+	cd->mask = true;
 
 	spin_lock_irqsave(&gic_lock, flags);
-	for (i = 0; i < gic_vpes; i++) {
-		gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR),
-			  mips_cm_vp_id(i));
-		gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_SMASK), 1 << intr);
+	for_each_online_cpu(cpu) {
+		write_gic_vl_other(mips_cm_vp_id(cpu));
+		write_gic_vo_smask(BIT(intr));
 	}
 	spin_unlock_irqrestore(&gic_lock, flags);
 }
 
+static void gic_all_vpes_irq_cpu_online(struct irq_data *d)
+{
+	struct gic_all_vpes_chip_data *cd;
+	unsigned int intr;
+
+	intr = GIC_HWIRQ_TO_LOCAL(d->hwirq);
+	cd = irq_data_get_irq_chip_data(d);
+
+	write_gic_vl_map(intr, cd->map);
+	if (cd->mask)
+		write_gic_vl_smask(BIT(intr));
+}
+
 static struct irq_chip gic_all_vpes_local_irq_controller = {
-	.name			=	"MIPS GIC Local",
-	.irq_mask		=	gic_mask_local_irq_all_vpes,
-	.irq_unmask		=	gic_unmask_local_irq_all_vpes,
+	.name			= "MIPS GIC Local",
+	.irq_mask		= gic_mask_local_irq_all_vpes,
+	.irq_unmask		= gic_unmask_local_irq_all_vpes,
+	.irq_cpu_online		= gic_all_vpes_irq_cpu_online,
 };
 
 static void __gic_irq_dispatch(void)
@@ -582,103 +412,21 @@ static void gic_irq_dispatch(struct irq_desc *desc)
 	gic_handle_shared_int(true);
 }
 
-static void __init gic_basic_init(void)
-{
-	unsigned int i;
-
-	board_bind_eic_interrupt = &gic_bind_eic_interrupt;
-
-	/* Setup defaults */
-	for (i = 0; i < gic_shared_intrs; i++) {
-		gic_set_polarity(i, GIC_POL_POS);
-		gic_set_trigger(i, GIC_TRIG_LEVEL);
-		gic_reset_mask(i);
-	}
-
-	for (i = 0; i < gic_vpes; i++) {
-		unsigned int j;
-
-		gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR),
-			  mips_cm_vp_id(i));
-		for (j = 0; j < GIC_NUM_LOCAL_INTRS; j++) {
-			if (!gic_local_irq_is_routable(j))
-				continue;
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_RMASK), 1 << j);
-		}
-	}
-}
-
-static int gic_local_irq_domain_map(struct irq_domain *d, unsigned int virq,
-				    irq_hw_number_t hw)
-{
-	int intr = GIC_HWIRQ_TO_LOCAL(hw);
-	int ret = 0;
-	int i;
-	unsigned long flags;
-
-	if (!gic_local_irq_is_routable(intr))
-		return -EPERM;
-
-	spin_lock_irqsave(&gic_lock, flags);
-	for (i = 0; i < gic_vpes; i++) {
-		u32 val = GIC_MAP_TO_PIN_MSK | gic_cpu_pin;
-
-		gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR),
-			  mips_cm_vp_id(i));
-
-		switch (intr) {
-		case GIC_LOCAL_INT_WD:
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_WD_MAP), val);
-			break;
-		case GIC_LOCAL_INT_COMPARE:
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_COMPARE_MAP),
-				    val);
-			break;
-		case GIC_LOCAL_INT_TIMER:
-			/* CONFIG_MIPS_CMP workaround (see __gic_init) */
-			val = GIC_MAP_TO_PIN_MSK | timer_cpu_pin;
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_TIMER_MAP),
-				    val);
-			break;
-		case GIC_LOCAL_INT_PERFCTR:
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_PERFCTR_MAP),
-				    val);
-			break;
-		case GIC_LOCAL_INT_SWINT0:
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_SWINT0_MAP),
-				    val);
-			break;
-		case GIC_LOCAL_INT_SWINT1:
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_SWINT1_MAP),
-				    val);
-			break;
-		case GIC_LOCAL_INT_FDC:
-			gic_write32(GIC_REG(VPE_OTHER, GIC_VPE_FDC_MAP), val);
-			break;
-		default:
-			pr_err("Invalid local IRQ %d\n", intr);
-			ret = -EINVAL;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&gic_lock, flags);
-
-	return ret;
-}
-
 static int gic_shared_irq_domain_map(struct irq_domain *d, unsigned int virq,
-				     irq_hw_number_t hw, unsigned int vpe)
+				     irq_hw_number_t hw, unsigned int cpu)
 {
 	int intr = GIC_HWIRQ_TO_SHARED(hw);
+	struct irq_data *data;
 	unsigned long flags;
-	int i;
+
+	data = irq_get_irq_data(virq);
 
 	spin_lock_irqsave(&gic_lock, flags);
-	gic_map_to_pin(intr, gic_cpu_pin);
-	gic_map_to_vpe(intr, mips_cm_vp_id(vpe));
-	for (i = 0; i < min(gic_vpes, NR_CPUS); i++)
-		clear_bit(intr, pcpu_masks[i].pcpu_mask);
-	set_bit(intr, pcpu_masks[vpe].pcpu_mask);
+	write_gic_map_pin(intr, GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin);
+	write_gic_map_vp(intr, BIT(mips_cm_vp_id(cpu)));
+	gic_clear_pcpu_masks(intr);
+	set_bit(intr, per_cpu_ptr(pcpu_masks, cpu));
+	irq_data_update_effective_affinity(data, cpumask_of(cpu));
 	spin_unlock_irqrestore(&gic_lock, flags);
 
 	return 0;
@@ -706,7 +454,11 @@ static int gic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr,
 static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
 			      irq_hw_number_t hwirq)
 {
-	int err;
+	struct gic_all_vpes_chip_data *cd;
+	unsigned long flags;
+	unsigned int intr;
+	int err, cpu;
+	u32 map;
 
 	if (hwirq >= GIC_SHARED_HWIRQ_BASE) {
 		/* verify that shared irqs don't conflict with an IPI irq */
@@ -723,8 +475,14 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
 		return gic_shared_irq_domain_map(d, virq, hwirq, 0);
 	}
 
-	switch (GIC_HWIRQ_TO_LOCAL(hwirq)) {
+	intr = GIC_HWIRQ_TO_LOCAL(hwirq);
+	map = GIC_MAP_PIN_MAP_TO_PIN | gic_cpu_pin;
+
+	switch (intr) {
 	case GIC_LOCAL_INT_TIMER:
+		/* CONFIG_MIPS_CMP workaround (see __gic_init) */
+		map = GIC_MAP_PIN_MAP_TO_PIN | timer_cpu_pin;
+		/* fall-through */
 	case GIC_LOCAL_INT_PERFCTR:
 	case GIC_LOCAL_INT_FDC:
 		/*
@@ -732,9 +490,11 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
 		 * the rest of the MIPS kernel code does not use the
 		 * percpu IRQ API for them.
 		 */
+		cd = &gic_all_vpes_chip_data[intr];
+		cd->map = map;
 		err = irq_domain_set_hwirq_and_chip(d, virq, hwirq,
 						    &gic_all_vpes_local_irq_controller,
-						    NULL);
+						    cd);
 		if (err)
 			return err;
 
@@ -753,7 +513,17 @@ static int gic_irq_domain_map(struct irq_domain *d, unsigned int virq,
 		break;
 	}
 
-	return gic_local_irq_domain_map(d, virq, hwirq);
+	if (!gic_local_irq_is_routable(intr))
+		return -EPERM;
+
+	spin_lock_irqsave(&gic_lock, flags);
+	for_each_online_cpu(cpu) {
+		write_gic_vl_other(mips_cm_vp_id(cpu));
+		write_gic_vo_map(intr, map);
+	}
+	spin_unlock_irqrestore(&gic_lock, flags);
+
+	return 0;
 }
 
 static int gic_irq_domain_alloc(struct irq_domain *d, unsigned int virq,
@@ -885,36 +655,77 @@ static const struct irq_domain_ops gic_ipi_domain_ops = {
 	.match = gic_ipi_domain_match,
 };
 
-static void __init __gic_init(unsigned long gic_base_addr,
-			      unsigned long gic_addrspace_size,
-			      unsigned int cpu_vec, unsigned int irqbase,
-			      struct device_node *node)
+static int gic_cpu_startup(unsigned int cpu)
 {
-	unsigned int gicconfig, cpu;
-	unsigned int v[2];
+	/* Enable or disable EIC */
+	change_gic_vl_ctl(GIC_VX_CTL_EIC,
+			  cpu_has_veic ? GIC_VX_CTL_EIC : 0);
+
+	/* Clear all local IRQ masks (ie. disable all local interrupts) */
+	write_gic_vl_rmask(~0);
+
+	/* Invoke irq_cpu_online callbacks to enable desired interrupts */
+	irq_cpu_online();
 
-	__gic_base_addr = gic_base_addr;
+	return 0;
+}
 
-	gic_base = ioremap_nocache(gic_base_addr, gic_addrspace_size);
+static int __init gic_of_init(struct device_node *node,
+			      struct device_node *parent)
+{
+	unsigned int cpu_vec, i, gicconfig, v[2], num_ipis;
+	unsigned long reserved;
+	phys_addr_t gic_base;
+	struct resource res;
+	size_t gic_len;
 
-	gicconfig = gic_read(GIC_REG(SHARED, GIC_SH_CONFIG));
-	gic_shared_intrs = (gicconfig & GIC_SH_CONFIG_NUMINTRS_MSK) >>
-		   GIC_SH_CONFIG_NUMINTRS_SHF;
-	gic_shared_intrs = ((gic_shared_intrs + 1) * 8);
+	/* Find the first available CPU vector. */
+	i = 0;
+	reserved = (C_SW0 | C_SW1) >> __ffs(C_SW0);
+	while (!of_property_read_u32_index(node, "mti,reserved-cpu-vectors",
+					   i++, &cpu_vec))
+		reserved |= BIT(cpu_vec);
 
-	gic_vpes = (gicconfig & GIC_SH_CONFIG_NUMVPES_MSK) >>
-		  GIC_SH_CONFIG_NUMVPES_SHF;
-	gic_vpes = gic_vpes + 1;
+	cpu_vec = find_first_zero_bit(&reserved, hweight_long(ST0_IM));
+	if (cpu_vec == hweight_long(ST0_IM)) {
+		pr_err("No CPU vectors available\n");
+		return -ENODEV;
+	}
 
-	if (cpu_has_veic) {
-		/* Set EIC mode for all VPEs */
-		for_each_present_cpu(cpu) {
-			gic_write(GIC_REG(VPE_LOCAL, GIC_VPE_OTHER_ADDR),
-				  mips_cm_vp_id(cpu));
-			gic_write(GIC_REG(VPE_OTHER, GIC_VPE_CTL),
-				  GIC_VPE_CTL_EIC_MODE_MSK);
+	if (of_address_to_resource(node, 0, &res)) {
+		/*
+		 * Probe the CM for the GIC base address if not specified
+		 * in the device-tree.
+		 */
+		if (mips_cm_present()) {
+			gic_base = read_gcr_gic_base() &
+				~CM_GCR_GIC_BASE_GICEN;
+			gic_len = 0x20000;
+			pr_warn("Using inherited base address %pa\n",
+				&gic_base);
+		} else {
+			pr_err("Failed to get memory range\n");
+			return -ENODEV;
 		}
+	} else {
+		gic_base = res.start;
+		gic_len = resource_size(&res);
+	}
+
+	if (mips_cm_present()) {
+		write_gcr_gic_base(gic_base | CM_GCR_GIC_BASE_GICEN);
+		/* Ensure GIC region is enabled before trying to access it */
+		__sync();
+	}
+
+	mips_gic_base = ioremap_nocache(gic_base, gic_len);
 
+	gicconfig = read_gic_config();
+	gic_shared_intrs = gicconfig & GIC_CONFIG_NUMINTERRUPTS;
+	gic_shared_intrs >>= __ffs(GIC_CONFIG_NUMINTERRUPTS);
+	gic_shared_intrs = (gic_shared_intrs + 1) * 8;
+
+	if (cpu_has_veic) {
 		/* Always use vector 1 in EIC mode */
 		gic_cpu_pin = 0;
 		timer_cpu_pin = gic_cpu_pin;
@@ -937,9 +748,7 @@ static void __init __gic_init(unsigned long gic_base_addr,
 		 */
 		if (IS_ENABLED(CONFIG_MIPS_CMP) &&
 		    gic_local_irq_is_routable(GIC_LOCAL_INT_TIMER)) {
-			timer_cpu_pin = gic_read32(GIC_REG(VPE_LOCAL,
-							 GIC_VPE_TIMER_MAP)) &
-					GIC_MAP_MSK;
+			timer_cpu_pin = read_gic_vl_timer_map() & GIC_MAP_PIN_MAP;
 			irq_set_chained_handler(MIPS_CPU_IRQ_BASE +
 						GIC_CPU_PIN_OFFSET +
 						timer_cpu_pin,
@@ -950,17 +759,21 @@ static void __init __gic_init(unsigned long gic_base_addr,
 	}
 
 	gic_irq_domain = irq_domain_add_simple(node, GIC_NUM_LOCAL_INTRS +
-					       gic_shared_intrs, irqbase,
+					       gic_shared_intrs, 0,
 					       &gic_irq_domain_ops, NULL);
-	if (!gic_irq_domain)
-		panic("Failed to add GIC IRQ domain");
+	if (!gic_irq_domain) {
+		pr_err("Failed to add IRQ domain");
+		return -ENXIO;
+	}
 
 	gic_ipi_domain = irq_domain_add_hierarchy(gic_irq_domain,
 						  IRQ_DOMAIN_FLAG_IPI_PER_CPU,
 						  GIC_NUM_LOCAL_INTRS + gic_shared_intrs,
 						  node, &gic_ipi_domain_ops, NULL);
-	if (!gic_ipi_domain)
-		panic("Failed to add GIC IPI domain");
+	if (!gic_ipi_domain) {
+		pr_err("Failed to add IPI domain");
+		return -ENXIO;
+	}
 
 	irq_domain_update_bus_token(gic_ipi_domain, DOMAIN_BUS_IPI);
 
@@ -968,71 +781,27 @@ static void __init __gic_init(unsigned long gic_base_addr,
 	    !of_property_read_u32_array(node, "mti,reserved-ipi-vectors", v, 2)) {
 		bitmap_set(ipi_resrv, v[0], v[1]);
 	} else {
-		/* Make the last 2 * gic_vpes available for IPIs */
-		bitmap_set(ipi_resrv,
-			   gic_shared_intrs - 2 * gic_vpes,
-			   2 * gic_vpes);
+		/*
+		 * Reserve 2 interrupts per possible CPU/VP for use as IPIs,
+		 * meeting the requirements of arch/mips SMP.
+		 */
+		num_ipis = 2 * num_possible_cpus();
+		bitmap_set(ipi_resrv, gic_shared_intrs - num_ipis, num_ipis);
 	}
 
 	bitmap_copy(ipi_available, ipi_resrv, GIC_MAX_INTRS);
-	gic_basic_init();
-}
-
-void __init gic_init(unsigned long gic_base_addr,
-		     unsigned long gic_addrspace_size,
-		     unsigned int cpu_vec, unsigned int irqbase)
-{
-	__gic_init(gic_base_addr, gic_addrspace_size, cpu_vec, irqbase, NULL);
-}
-
-static int __init gic_of_init(struct device_node *node,
-			      struct device_node *parent)
-{
-	struct resource res;
-	unsigned int cpu_vec, i = 0, reserved = 0;
-	phys_addr_t gic_base;
-	size_t gic_len;
-
-	/* Find the first available CPU vector. */
-	while (!of_property_read_u32_index(node, "mti,reserved-cpu-vectors",
-					   i++, &cpu_vec))
-		reserved |= BIT(cpu_vec);
-	for (cpu_vec = 2; cpu_vec < 8; cpu_vec++) {
-		if (!(reserved & BIT(cpu_vec)))
-			break;
-	}
-	if (cpu_vec == 8) {
-		pr_err("No CPU vectors available for GIC\n");
-		return -ENODEV;
-	}
 
-	if (of_address_to_resource(node, 0, &res)) {
-		/*
-		 * Probe the CM for the GIC base address if not specified
-		 * in the device-tree.
-		 */
-		if (mips_cm_present()) {
-			gic_base = read_gcr_gic_base() &
-				~CM_GCR_GIC_BASE_GICEN_MSK;
-			gic_len = 0x20000;
-		} else {
-			pr_err("Failed to get GIC memory range\n");
-			return -ENODEV;
-		}
-	} else {
-		gic_base = res.start;
-		gic_len = resource_size(&res);
-	}
+	board_bind_eic_interrupt = &gic_bind_eic_interrupt;
 
-	if (mips_cm_present()) {
-		write_gcr_gic_base(gic_base | CM_GCR_GIC_BASE_GICEN_MSK);
-		/* Ensure GIC region is enabled before trying to access it */
-		__sync();
+	/* Setup defaults */
+	for (i = 0; i < gic_shared_intrs; i++) {
+		change_gic_pol(i, GIC_POL_ACTIVE_HIGH);
+		change_gic_trig(i, GIC_TRIG_LEVEL);
+		write_gic_rmask(i);
 	}
-	gic_present = true;
 
-	__gic_init(gic_base, gic_len, cpu_vec, 0, node);
-
-	return 0;
+	return cpuhp_setup_state(CPUHP_AP_IRQ_MIPS_GIC_STARTING,
+				 "irqchip/mips/gic:starting",
+				 gic_cpu_startup, NULL);
 }
 IRQCHIP_DECLARE(mips_gic, "mti,gic", gic_of_init);
diff --git a/drivers/irqchip/irq-mvebu-gicp.c b/drivers/irqchip/irq-mvebu-gicp.c
index b283fc90be1e..17a4a7b6cdbb 100644
--- a/drivers/irqchip/irq-mvebu-gicp.c
+++ b/drivers/irqchip/irq-mvebu-gicp.c
@@ -194,6 +194,7 @@ static int mvebu_gicp_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	gicp->dev = &pdev->dev;
+	spin_lock_init(&gicp->spi_lock);
 
 	gicp->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!gicp->res)
diff --git a/drivers/irqchip/irq-mvebu-gicp.h b/drivers/irqchip/irq-mvebu-gicp.h
index 98535e886ea5..eaa12fb72102 100644
--- a/drivers/irqchip/irq-mvebu-gicp.h
+++ b/drivers/irqchip/irq-mvebu-gicp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MVEBU_GICP_H__
 #define __MVEBU_GICP_H__
 
diff --git a/drivers/irqchip/irq-omap-intc.c b/drivers/irqchip/irq-omap-intc.c
index b04a8ac6e744..d360a6eddd6d 100644
--- a/drivers/irqchip/irq-omap-intc.c
+++ b/drivers/irqchip/irq-omap-intc.c
@@ -25,10 +25,6 @@
 
 #include <linux/irqchip/irq-omap-intc.h>
 
-/* Define these here for now until we drop all board-files */
-#define OMAP24XX_IC_BASE	0x480fe000
-#define OMAP34XX_IC_BASE	0x48200000
-
 /* selected INTC register offsets */
 
 #define INTC_REVISION		0x0000
@@ -70,8 +66,8 @@ static struct omap_intc_regs intc_context;
 
 static struct irq_domain *domain;
 static void __iomem *omap_irq_base;
-static int omap_nr_pending = 3;
-static int omap_nr_irqs = 96;
+static int omap_nr_pending;
+static int omap_nr_irqs;
 
 static void intc_writel(u32 reg, u32 val)
 {
@@ -364,14 +360,6 @@ omap_intc_handle_irq(struct pt_regs *regs)
 	handle_domain_irq(domain, irqnr, regs);
 }
 
-void __init omap3_init_irq(void)
-{
-	omap_nr_irqs = 96;
-	omap_nr_pending = 3;
-	omap_init_irq(OMAP34XX_IC_BASE, NULL);
-	set_handle_irq(omap_intc_handle_irq);
-}
-
 static int __init intc_of_init(struct device_node *node,
 			     struct device_node *parent)
 {
diff --git a/drivers/irqchip/irq-ompic.c b/drivers/irqchip/irq-ompic.c
new file mode 100644
index 000000000000..cf6d0c455518
--- /dev/null
+++ b/drivers/irqchip/irq-ompic.c
@@ -0,0 +1,202 @@
+/*
+ * Open Multi-Processor Interrupt Controller driver
+ *
+ * Copyright (C) 2014 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
+ * Copyright (C) 2017 Stafford Horne <shorne@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ *
+ * The ompic device handles IPI communication between cores in multi-core
+ * OpenRISC systems.
+ *
+ * Registers
+ *
+ * For each CPU the ompic has 2 registers. The control register for sending
+ * and acking IPIs and the status register for receiving IPIs. The register
+ * layouts are as follows:
+ *
+ *  Control register
+ *  +---------+---------+----------+---------+
+ *  | 31      | 30      | 29 .. 16 | 15 .. 0 |
+ *  ----------+---------+----------+----------
+ *  | IRQ ACK | IRQ GEN | DST CORE | DATA    |
+ *  +---------+---------+----------+---------+
+ *
+ *  Status register
+ *  +----------+-------------+----------+---------+
+ *  | 31       | 30          | 29 .. 16 | 15 .. 0 |
+ *  -----------+-------------+----------+---------+
+ *  | Reserved | IRQ Pending | SRC CORE | DATA    |
+ *  +----------+-------------+----------+---------+
+ *
+ * Architecture
+ *
+ * - The ompic generates a level interrupt to the CPU PIC when a message is
+ *   ready.  Messages are delivered via the memory bus.
+ * - The ompic does not have any interrupt input lines.
+ * - The ompic is wired to the same irq line on each core.
+ * - Devices are wired to the same irq line on each core.
+ *
+ *   +---------+                         +---------+
+ *   | CPU     |                         | CPU     |
+ *   |  Core 0 |<==\ (memory access) /==>|  Core 1 |
+ *   |  [ PIC ]|   |                 |   |  [ PIC ]|
+ *   +----^-^--+   |                 |   +----^-^--+
+ *        | |      v                 v        | |
+ *   <====|=|=================================|=|==> (memory bus)
+ *        | |      ^                  ^       | |
+ *  (ipi  | +------|---------+--------|-------|-+ (device irq)
+ *   irq  |        |         |        |       |
+ *  core0)| +------|---------|--------|-------+ (ipi irq core1)
+ *        | |      |         |        |
+ *   +----o-o-+    |    +--------+    |
+ *   | ompic  |<===/    | Device |<===/
+ *   |  IPI   |         +--------+
+ *   +--------+*
+ *
+ */
+
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/smp.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+
+#include <linux/irqchip.h>
+
+#define OMPIC_CPUBYTES		8
+#define OMPIC_CTRL(cpu)		(0x0 + (cpu * OMPIC_CPUBYTES))
+#define OMPIC_STAT(cpu)		(0x4 + (cpu * OMPIC_CPUBYTES))
+
+#define OMPIC_CTRL_IRQ_ACK	(1 << 31)
+#define OMPIC_CTRL_IRQ_GEN	(1 << 30)
+#define OMPIC_CTRL_DST(cpu)	(((cpu) & 0x3fff) << 16)
+
+#define OMPIC_STAT_IRQ_PENDING	(1 << 30)
+
+#define OMPIC_DATA(x)		((x) & 0xffff)
+
+DEFINE_PER_CPU(unsigned long, ops);
+
+static void __iomem *ompic_base;
+
+static inline u32 ompic_readreg(void __iomem *base, loff_t offset)
+{
+	return ioread32be(base + offset);
+}
+
+static void ompic_writereg(void __iomem *base, loff_t offset, u32 data)
+{
+	iowrite32be(data, base + offset);
+}
+
+static void ompic_raise_softirq(const struct cpumask *mask,
+				unsigned int ipi_msg)
+{
+	unsigned int dst_cpu;
+	unsigned int src_cpu = smp_processor_id();
+
+	for_each_cpu(dst_cpu, mask) {
+		set_bit(ipi_msg, &per_cpu(ops, dst_cpu));
+
+		/*
+		 * On OpenRISC the atomic set_bit() call implies a memory
+		 * barrier.  Otherwise we would need: smp_wmb(); paired
+		 * with the read in ompic_ipi_handler.
+		 */
+
+		ompic_writereg(ompic_base, OMPIC_CTRL(src_cpu),
+			       OMPIC_CTRL_IRQ_GEN |
+			       OMPIC_CTRL_DST(dst_cpu) |
+			       OMPIC_DATA(1));
+	}
+}
+
+static irqreturn_t ompic_ipi_handler(int irq, void *dev_id)
+{
+	unsigned int cpu = smp_processor_id();
+	unsigned long *pending_ops = &per_cpu(ops, cpu);
+	unsigned long ops;
+
+	ompic_writereg(ompic_base, OMPIC_CTRL(cpu), OMPIC_CTRL_IRQ_ACK);
+	while ((ops = xchg(pending_ops, 0)) != 0) {
+
+		/*
+		 * On OpenRISC the atomic xchg() call implies a memory
+		 * barrier.  Otherwise we may need an smp_rmb(); paired
+		 * with the write in ompic_raise_softirq.
+		 */
+
+		do {
+			unsigned long ipi_msg;
+
+			ipi_msg = __ffs(ops);
+			ops &= ~(1UL << ipi_msg);
+
+			handle_IPI(ipi_msg);
+		} while (ops);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int __init ompic_of_init(struct device_node *node,
+				struct device_node *parent)
+{
+	struct resource res;
+	int irq;
+	int ret;
+
+	/* Validate the DT */
+	if (ompic_base) {
+		pr_err("ompic: duplicate ompic's are not supported");
+		return -EEXIST;
+	}
+
+	if (of_address_to_resource(node, 0, &res)) {
+		pr_err("ompic: reg property requires an address and size");
+		return -EINVAL;
+	}
+
+	if (resource_size(&res) < (num_possible_cpus() * OMPIC_CPUBYTES)) {
+		pr_err("ompic: reg size, currently %d must be at least %d",
+			resource_size(&res),
+			(num_possible_cpus() * OMPIC_CPUBYTES));
+		return -EINVAL;
+	}
+
+	/* Setup the device */
+	ompic_base = ioremap(res.start, resource_size(&res));
+	if (IS_ERR(ompic_base)) {
+		pr_err("ompic: unable to map registers");
+		return PTR_ERR(ompic_base);
+	}
+
+	irq = irq_of_parse_and_map(node, 0);
+	if (irq <= 0) {
+		pr_err("ompic: unable to parse device irq");
+		ret = -EINVAL;
+		goto out_unmap;
+	}
+
+	ret = request_irq(irq, ompic_ipi_handler, IRQF_PERCPU,
+				"ompic_ipi", NULL);
+	if (ret)
+		goto out_irq_disp;
+
+	set_smp_cross_call(ompic_raise_softirq);
+
+	return 0;
+
+out_irq_disp:
+	irq_dispose_mapping(irq);
+out_unmap:
+	iounmap(ompic_base);
+	ompic_base = NULL;
+	return ret;
+}
+IRQCHIP_DECLARE(ompic, "openrisc,ompic", ompic_of_init);
diff --git a/drivers/irqchip/irq-renesas-h8300h.c b/drivers/irqchip/irq-renesas-h8300h.c
index b8327590ae52..1054d74b7edd 100644
--- a/drivers/irqchip/irq-renesas-h8300h.c
+++ b/drivers/irqchip/irq-renesas-h8300h.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * H8/300H interrupt controller driver
  *
diff --git a/drivers/irqchip/irq-renesas-h8s.c b/drivers/irqchip/irq-renesas-h8s.c
index 71d8139be26c..aed31afb0216 100644
--- a/drivers/irqchip/irq-renesas-h8s.c
+++ b/drivers/irqchip/irq-renesas-h8s.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * H8S interrupt contoller driver
  *
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 713177d97c7a..06f29cf5018a 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -389,9 +389,8 @@ MODULE_DEVICE_TABLE(of, intc_irqpin_dt_ids);
 
 static int intc_irqpin_probe(struct platform_device *pdev)
 {
-	const struct intc_irqpin_config *config = NULL;
+	const struct intc_irqpin_config *config;
 	struct device *dev = &pdev->dev;
-	const struct of_device_id *of_id;
 	struct intc_irqpin_priv *p;
 	struct intc_irqpin_iomem *i;
 	struct resource *io[INTC_IRQPIN_REG_NR];
@@ -422,11 +421,9 @@ static int intc_irqpin_probe(struct platform_device *pdev)
 	p->pdev = pdev;
 	platform_set_drvdata(pdev, p);
 
-	of_id = of_match_device(intc_irqpin_dt_ids, dev);
-	if (of_id && of_id->data) {
-		config = of_id->data;
+	config = of_device_get_match_data(dev);
+	if (config)
 		p->needs_clk = config->needs_clk;
-	}
 
 	p->clk = devm_clk_get(dev, NULL);
 	if (IS_ERR(p->clk)) {
diff --git a/drivers/irqchip/irq-sni-exiu.c b/drivers/irqchip/irq-sni-exiu.c
new file mode 100644
index 000000000000..1b6e2f7c59af
--- /dev/null
+++ b/drivers/irqchip/irq-sni-exiu.c
@@ -0,0 +1,227 @@
+/*
+ * Driver for Socionext External Interrupt Unit (EXIU)
+ *
+ * Copyright (c) 2017 Linaro, Ltd. <ard.biesheuvel@linaro.org>
+ *
+ * Based on irq-tegra.c:
+ *   Copyright (C) 2011 Google, Inc.
+ *   Copyright (C) 2010,2013, NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/irqchip.h>
+#include <linux/irqdomain.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+#define NUM_IRQS	32
+
+#define EIMASK		0x00
+#define EISRCSEL	0x04
+#define EIREQSTA	0x08
+#define EIRAWREQSTA	0x0C
+#define EIREQCLR	0x10
+#define EILVL		0x14
+#define EIEDG		0x18
+#define EISIR		0x1C
+
+struct exiu_irq_data {
+	void __iomem	*base;
+	u32		spi_base;
+};
+
+static void exiu_irq_eoi(struct irq_data *d)
+{
+	struct exiu_irq_data *data = irq_data_get_irq_chip_data(d);
+
+	writel(BIT(d->hwirq), data->base + EIREQCLR);
+	irq_chip_eoi_parent(d);
+}
+
+static void exiu_irq_mask(struct irq_data *d)
+{
+	struct exiu_irq_data *data = irq_data_get_irq_chip_data(d);
+	u32 val;
+
+	val = readl_relaxed(data->base + EIMASK) | BIT(d->hwirq);
+	writel_relaxed(val, data->base + EIMASK);
+	irq_chip_mask_parent(d);
+}
+
+static void exiu_irq_unmask(struct irq_data *d)
+{
+	struct exiu_irq_data *data = irq_data_get_irq_chip_data(d);
+	u32 val;
+
+	val = readl_relaxed(data->base + EIMASK) & ~BIT(d->hwirq);
+	writel_relaxed(val, data->base + EIMASK);
+	irq_chip_unmask_parent(d);
+}
+
+static void exiu_irq_enable(struct irq_data *d)
+{
+	struct exiu_irq_data *data = irq_data_get_irq_chip_data(d);
+	u32 val;
+
+	/* clear interrupts that were latched while disabled */
+	writel_relaxed(BIT(d->hwirq), data->base + EIREQCLR);
+
+	val = readl_relaxed(data->base + EIMASK) & ~BIT(d->hwirq);
+	writel_relaxed(val, data->base + EIMASK);
+	irq_chip_enable_parent(d);
+}
+
+static int exiu_irq_set_type(struct irq_data *d, unsigned int type)
+{
+	struct exiu_irq_data *data = irq_data_get_irq_chip_data(d);
+	u32 val;
+
+	val = readl_relaxed(data->base + EILVL);
+	if (type == IRQ_TYPE_EDGE_RISING || type == IRQ_TYPE_LEVEL_HIGH)
+		val |= BIT(d->hwirq);
+	else
+		val &= ~BIT(d->hwirq);
+	writel_relaxed(val, data->base + EILVL);
+
+	val = readl_relaxed(data->base + EIEDG);
+	if (type == IRQ_TYPE_LEVEL_LOW || type == IRQ_TYPE_LEVEL_HIGH)
+		val &= ~BIT(d->hwirq);
+	else
+		val |= BIT(d->hwirq);
+	writel_relaxed(val, data->base + EIEDG);
+
+	writel_relaxed(BIT(d->hwirq), data->base + EIREQCLR);
+
+	return irq_chip_set_type_parent(d, IRQ_TYPE_LEVEL_HIGH);
+}
+
+static struct irq_chip exiu_irq_chip = {
+	.name			= "EXIU",
+	.irq_eoi		= exiu_irq_eoi,
+	.irq_enable		= exiu_irq_enable,
+	.irq_mask		= exiu_irq_mask,
+	.irq_unmask		= exiu_irq_unmask,
+	.irq_set_type		= exiu_irq_set_type,
+	.irq_set_affinity	= irq_chip_set_affinity_parent,
+	.flags			= IRQCHIP_SET_TYPE_MASKED |
+				  IRQCHIP_SKIP_SET_WAKE |
+				  IRQCHIP_EOI_THREADED |
+				  IRQCHIP_MASK_ON_SUSPEND,
+};
+
+static int exiu_domain_translate(struct irq_domain *domain,
+				 struct irq_fwspec *fwspec,
+				 unsigned long *hwirq,
+				 unsigned int *type)
+{
+	struct exiu_irq_data *info = domain->host_data;
+
+	if (is_of_node(fwspec->fwnode)) {
+		if (fwspec->param_count != 3)
+			return -EINVAL;
+
+		if (fwspec->param[0] != GIC_SPI)
+			return -EINVAL; /* No PPI should point to this domain */
+
+		*hwirq = fwspec->param[1] - info->spi_base;
+		*type = fwspec->param[2] & IRQ_TYPE_SENSE_MASK;
+		return 0;
+	}
+	return -EINVAL;
+}
+
+static int exiu_domain_alloc(struct irq_domain *dom, unsigned int virq,
+			     unsigned int nr_irqs, void *data)
+{
+	struct irq_fwspec *fwspec = data;
+	struct irq_fwspec parent_fwspec;
+	struct exiu_irq_data *info = dom->host_data;
+	irq_hw_number_t hwirq;
+
+	if (fwspec->param_count != 3)
+		return -EINVAL;	/* Not GIC compliant */
+	if (fwspec->param[0] != GIC_SPI)
+		return -EINVAL;	/* No PPI should point to this domain */
+
+	WARN_ON(nr_irqs != 1);
+	hwirq = fwspec->param[1] - info->spi_base;
+	irq_domain_set_hwirq_and_chip(dom, virq, hwirq, &exiu_irq_chip, info);
+
+	parent_fwspec = *fwspec;
+	parent_fwspec.fwnode = dom->parent->fwnode;
+	return irq_domain_alloc_irqs_parent(dom, virq, nr_irqs, &parent_fwspec);
+}
+
+static const struct irq_domain_ops exiu_domain_ops = {
+	.translate	= exiu_domain_translate,
+	.alloc		= exiu_domain_alloc,
+	.free		= irq_domain_free_irqs_common,
+};
+
+static int __init exiu_init(struct device_node *node,
+			    struct device_node *parent)
+{
+	struct irq_domain *parent_domain, *domain;
+	struct exiu_irq_data *data;
+	int err;
+
+	if (!parent) {
+		pr_err("%pOF: no parent, giving up\n", node);
+		return -ENODEV;
+	}
+
+	parent_domain = irq_find_host(parent);
+	if (!parent_domain) {
+		pr_err("%pOF: unable to obtain parent domain\n", node);
+		return -ENXIO;
+	}
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	if (of_property_read_u32(node, "socionext,spi-base", &data->spi_base)) {
+		pr_err("%pOF: failed to parse 'spi-base' property\n", node);
+		err = -ENODEV;
+		goto out_free;
+	}
+
+	data->base = of_iomap(node, 0);
+	if (IS_ERR(data->base)) {
+		err = PTR_ERR(data->base);
+		goto out_free;
+	}
+
+	/* clear and mask all interrupts */
+	writel_relaxed(0xFFFFFFFF, data->base + EIREQCLR);
+	writel_relaxed(0xFFFFFFFF, data->base + EIMASK);
+
+	domain = irq_domain_add_hierarchy(parent_domain, 0, NUM_IRQS, node,
+					  &exiu_domain_ops, data);
+	if (!domain) {
+		pr_err("%pOF: failed to allocate domain\n", node);
+		err = -ENOMEM;
+		goto out_unmap;
+	}
+
+	pr_info("%pOF: %d interrupts forwarded to %pOF\n", node, NUM_IRQS,
+		parent);
+
+	return 0;
+
+out_unmap:
+	iounmap(data->base);
+out_free:
+	kfree(data);
+	return err;
+}
+IRQCHIP_DECLARE(exiu, "socionext,synquacer-exiu", exiu_init);
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index 45363ff8d06f..31ab0dee2ce7 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -14,27 +14,99 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 
-#define EXTI_IMR	0x0
-#define EXTI_EMR	0x4
-#define EXTI_RTSR	0x8
-#define EXTI_FTSR	0xc
-#define EXTI_SWIER	0x10
-#define EXTI_PR		0x14
+#define IRQS_PER_BANK 32
+
+struct stm32_exti_bank {
+	u32 imr_ofst;
+	u32 emr_ofst;
+	u32 rtsr_ofst;
+	u32 ftsr_ofst;
+	u32 swier_ofst;
+	u32 pr_ofst;
+};
+
+static const struct stm32_exti_bank stm32f4xx_exti_b1 = {
+	.imr_ofst	= 0x00,
+	.emr_ofst	= 0x04,
+	.rtsr_ofst	= 0x08,
+	.ftsr_ofst	= 0x0C,
+	.swier_ofst	= 0x10,
+	.pr_ofst	= 0x14,
+};
+
+static const struct stm32_exti_bank *stm32f4xx_exti_banks[] = {
+	&stm32f4xx_exti_b1,
+};
+
+static const struct stm32_exti_bank stm32h7xx_exti_b1 = {
+	.imr_ofst	= 0x80,
+	.emr_ofst	= 0x84,
+	.rtsr_ofst	= 0x00,
+	.ftsr_ofst	= 0x04,
+	.swier_ofst	= 0x08,
+	.pr_ofst	= 0x88,
+};
+
+static const struct stm32_exti_bank stm32h7xx_exti_b2 = {
+	.imr_ofst	= 0x90,
+	.emr_ofst	= 0x94,
+	.rtsr_ofst	= 0x20,
+	.ftsr_ofst	= 0x24,
+	.swier_ofst	= 0x28,
+	.pr_ofst	= 0x98,
+};
+
+static const struct stm32_exti_bank stm32h7xx_exti_b3 = {
+	.imr_ofst	= 0xA0,
+	.emr_ofst	= 0xA4,
+	.rtsr_ofst	= 0x40,
+	.ftsr_ofst	= 0x44,
+	.swier_ofst	= 0x48,
+	.pr_ofst	= 0xA8,
+};
+
+static const struct stm32_exti_bank *stm32h7xx_exti_banks[] = {
+	&stm32h7xx_exti_b1,
+	&stm32h7xx_exti_b2,
+	&stm32h7xx_exti_b3,
+};
+
+static unsigned long stm32_exti_pending(struct irq_chip_generic *gc)
+{
+	const struct stm32_exti_bank *stm32_bank = gc->private;
+
+	return irq_reg_readl(gc, stm32_bank->pr_ofst);
+}
+
+static void stm32_exti_irq_ack(struct irq_chip_generic *gc, u32 mask)
+{
+	const struct stm32_exti_bank *stm32_bank = gc->private;
+
+	irq_reg_writel(gc, mask, stm32_bank->pr_ofst);
+}
 
 static void stm32_irq_handler(struct irq_desc *desc)
 {
 	struct irq_domain *domain = irq_desc_get_handler_data(desc);
-	struct irq_chip_generic *gc = domain->gc->gc[0];
 	struct irq_chip *chip = irq_desc_get_chip(desc);
+	unsigned int virq, nbanks = domain->gc->num_chips;
+	struct irq_chip_generic *gc;
+	const struct stm32_exti_bank *stm32_bank;
 	unsigned long pending;
-	int n;
+	int n, i, irq_base = 0;
 
 	chained_irq_enter(chip, desc);
 
-	while ((pending = irq_reg_readl(gc, EXTI_PR))) {
-		for_each_set_bit(n, &pending, BITS_PER_LONG) {
-			generic_handle_irq(irq_find_mapping(domain, n));
-			irq_reg_writel(gc, BIT(n), EXTI_PR);
+	for (i = 0; i < nbanks; i++, irq_base += IRQS_PER_BANK) {
+		gc = irq_get_domain_generic_chip(domain, irq_base);
+		stm32_bank = gc->private;
+
+		while ((pending = stm32_exti_pending(gc))) {
+			for_each_set_bit(n, &pending, IRQS_PER_BANK) {
+				virq = irq_find_mapping(domain, irq_base + n);
+				generic_handle_irq(virq);
+				stm32_exti_irq_ack(gc, BIT(n));
+			}
 		}
 	}
 
@@ -44,13 +116,14 @@ static void stm32_irq_handler(struct irq_desc *desc)
 static int stm32_irq_set_type(struct irq_data *data, unsigned int type)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
-	int pin = data->hwirq;
+	const struct stm32_exti_bank *stm32_bank = gc->private;
+	int pin = data->hwirq % IRQS_PER_BANK;
 	u32 rtsr, ftsr;
 
 	irq_gc_lock(gc);
 
-	rtsr = irq_reg_readl(gc, EXTI_RTSR);
-	ftsr = irq_reg_readl(gc, EXTI_FTSR);
+	rtsr = irq_reg_readl(gc, stm32_bank->rtsr_ofst);
+	ftsr = irq_reg_readl(gc, stm32_bank->ftsr_ofst);
 
 	switch (type) {
 	case IRQ_TYPE_EDGE_RISING:
@@ -70,8 +143,8 @@ static int stm32_irq_set_type(struct irq_data *data, unsigned int type)
 		return -EINVAL;
 	}
 
-	irq_reg_writel(gc, rtsr, EXTI_RTSR);
-	irq_reg_writel(gc, ftsr, EXTI_FTSR);
+	irq_reg_writel(gc, rtsr, stm32_bank->rtsr_ofst);
+	irq_reg_writel(gc, ftsr, stm32_bank->ftsr_ofst);
 
 	irq_gc_unlock(gc);
 
@@ -81,17 +154,18 @@ static int stm32_irq_set_type(struct irq_data *data, unsigned int type)
 static int stm32_irq_set_wake(struct irq_data *data, unsigned int on)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(data);
-	int pin = data->hwirq;
-	u32 emr;
+	const struct stm32_exti_bank *stm32_bank = gc->private;
+	int pin = data->hwirq % IRQS_PER_BANK;
+	u32 imr;
 
 	irq_gc_lock(gc);
 
-	emr = irq_reg_readl(gc, EXTI_EMR);
+	imr = irq_reg_readl(gc, stm32_bank->imr_ofst);
 	if (on)
-		emr |= BIT(pin);
+		imr |= BIT(pin);
 	else
-		emr &= ~BIT(pin);
-	irq_reg_writel(gc, emr, EXTI_EMR);
+		imr &= ~BIT(pin);
+	irq_reg_writel(gc, imr, stm32_bank->imr_ofst);
 
 	irq_gc_unlock(gc);
 
@@ -101,11 +175,12 @@ static int stm32_irq_set_wake(struct irq_data *data, unsigned int on)
 static int stm32_exti_alloc(struct irq_domain *d, unsigned int virq,
 			    unsigned int nr_irqs, void *data)
 {
-	struct irq_chip_generic *gc = d->gc->gc[0];
+	struct irq_chip_generic *gc;
 	struct irq_fwspec *fwspec = data;
 	irq_hw_number_t hwirq;
 
 	hwirq = fwspec->param[0];
+	gc = irq_get_domain_generic_chip(d, hwirq);
 
 	irq_map_generic_chip(d, virq, hwirq);
 	irq_domain_set_info(d, virq, hwirq, &gc->chip_types->chip, gc,
@@ -129,8 +204,9 @@ struct irq_domain_ops irq_exti_domain_ops = {
 	.free	= stm32_exti_free,
 };
 
-static int __init stm32_exti_init(struct device_node *node,
-				  struct device_node *parent)
+static int
+__init stm32_exti_init(const struct stm32_exti_bank **stm32_exti_banks,
+		       int bank_nr, struct device_node *node)
 {
 	unsigned int clr = IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_NOAUTOEN;
 	int nr_irqs, nr_exti, ret, i;
@@ -144,23 +220,16 @@ static int __init stm32_exti_init(struct device_node *node,
 		return -ENOMEM;
 	}
 
-	/* Determine number of irqs supported */
-	writel_relaxed(~0UL, base + EXTI_RTSR);
-	nr_exti = fls(readl_relaxed(base + EXTI_RTSR));
-	writel_relaxed(0, base + EXTI_RTSR);
-
-	pr_info("%pOF: %d External IRQs detected\n", node, nr_exti);
-
-	domain = irq_domain_add_linear(node, nr_exti,
+	domain = irq_domain_add_linear(node, bank_nr * IRQS_PER_BANK,
 				       &irq_exti_domain_ops, NULL);
 	if (!domain) {
 		pr_err("%s: Could not register interrupt domain.\n",
-				node->name);
+		       node->name);
 		ret = -ENOMEM;
 		goto out_unmap;
 	}
 
-	ret = irq_alloc_domain_generic_chips(domain, nr_exti, 1, "exti",
+	ret = irq_alloc_domain_generic_chips(domain, IRQS_PER_BANK, 1, "exti",
 					     handle_edge_irq, clr, 0, 0);
 	if (ret) {
 		pr_err("%pOF: Could not allocate generic interrupt chip.\n",
@@ -168,18 +237,41 @@ static int __init stm32_exti_init(struct device_node *node,
 		goto out_free_domain;
 	}
 
-	gc = domain->gc->gc[0];
-	gc->reg_base                         = base;
-	gc->chip_types->type               = IRQ_TYPE_EDGE_BOTH;
-	gc->chip_types->chip.name          = gc->chip_types[0].chip.name;
-	gc->chip_types->chip.irq_ack       = irq_gc_ack_set_bit;
-	gc->chip_types->chip.irq_mask      = irq_gc_mask_clr_bit;
-	gc->chip_types->chip.irq_unmask    = irq_gc_mask_set_bit;
-	gc->chip_types->chip.irq_set_type  = stm32_irq_set_type;
-	gc->chip_types->chip.irq_set_wake  = stm32_irq_set_wake;
-	gc->chip_types->regs.ack           = EXTI_PR;
-	gc->chip_types->regs.mask          = EXTI_IMR;
-	gc->chip_types->handler            = handle_edge_irq;
+	for (i = 0; i < bank_nr; i++) {
+		const struct stm32_exti_bank *stm32_bank = stm32_exti_banks[i];
+		u32 irqs_mask;
+
+		gc = irq_get_domain_generic_chip(domain, i * IRQS_PER_BANK);
+
+		gc->reg_base = base;
+		gc->chip_types->type = IRQ_TYPE_EDGE_BOTH;
+		gc->chip_types->chip.irq_ack = irq_gc_ack_set_bit;
+		gc->chip_types->chip.irq_mask = irq_gc_mask_clr_bit;
+		gc->chip_types->chip.irq_unmask = irq_gc_mask_set_bit;
+		gc->chip_types->chip.irq_set_type = stm32_irq_set_type;
+		gc->chip_types->chip.irq_set_wake = stm32_irq_set_wake;
+		gc->chip_types->regs.ack = stm32_bank->pr_ofst;
+		gc->chip_types->regs.mask = stm32_bank->imr_ofst;
+		gc->private = (void *)stm32_bank;
+
+		/* Determine number of irqs supported */
+		writel_relaxed(~0UL, base + stm32_bank->rtsr_ofst);
+		irqs_mask = readl_relaxed(base + stm32_bank->rtsr_ofst);
+		nr_exti = fls(readl_relaxed(base + stm32_bank->rtsr_ofst));
+
+		/*
+		 * This IP has no reset, so after hot reboot we should
+		 * clear registers to avoid residue
+		 */
+		writel_relaxed(0, base + stm32_bank->imr_ofst);
+		writel_relaxed(0, base + stm32_bank->emr_ofst);
+		writel_relaxed(0, base + stm32_bank->rtsr_ofst);
+		writel_relaxed(0, base + stm32_bank->ftsr_ofst);
+		writel_relaxed(~0UL, base + stm32_bank->pr_ofst);
+
+		pr_info("%s: bank%d, External IRQs available:%#x\n",
+			node->full_name, i, irqs_mask);
+	}
 
 	nr_irqs = of_irq_count(node);
 	for (i = 0; i < nr_irqs; i++) {
@@ -198,4 +290,20 @@ out_unmap:
 	return ret;
 }
 
-IRQCHIP_DECLARE(stm32_exti, "st,stm32-exti", stm32_exti_init);
+static int __init stm32f4_exti_of_init(struct device_node *np,
+				       struct device_node *parent)
+{
+	return stm32_exti_init(stm32f4xx_exti_banks,
+			ARRAY_SIZE(stm32f4xx_exti_banks), np);
+}
+
+IRQCHIP_DECLARE(stm32f4_exti, "st,stm32-exti", stm32f4_exti_of_init);
+
+static int __init stm32h7_exti_of_init(struct device_node *np,
+				       struct device_node *parent)
+{
+	return stm32_exti_init(stm32h7xx_exti_banks,
+			ARRAY_SIZE(stm32h7xx_exti_banks), np);
+}
+
+IRQCHIP_DECLARE(stm32h7_exti, "st,stm32h7-exti", stm32h7_exti_of_init);
diff --git a/drivers/irqchip/irq-tango.c b/drivers/irqchip/irq-tango.c
index bdbb5c0ff7fe..0c085303a583 100644
--- a/drivers/irqchip/irq-tango.c
+++ b/drivers/irqchip/irq-tango.c
@@ -141,7 +141,7 @@ static void __init tangox_irq_init_chip(struct irq_chip_generic *gc,
 	for (i = 0; i < 2; i++) {
 		ct[i].chip.irq_ack = irq_gc_ack_set_bit;
 		ct[i].chip.irq_mask = irq_gc_mask_disable_reg;
-		ct[i].chip.irq_mask_ack = irq_gc_mask_disable_reg_and_ack;
+		ct[i].chip.irq_mask_ack = irq_gc_mask_disable_and_ack_set;
 		ct[i].chip.irq_unmask = irq_gc_unmask_enable_reg;
 		ct[i].chip.irq_set_type = tangox_irq_set_type;
 		ct[i].chip.name = gc->domain->name;
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
index 37dd4645bf18..928858dada75 100644
--- a/drivers/irqchip/irq-versatile-fpga.c
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Support for Versatile FPGA-based IRQ controllers
  */
diff --git a/drivers/isdn/Makefile b/drivers/isdn/Makefile
index c32e45826c2c..e7d3d8f2ad5a 100644
--- a/drivers/isdn/Makefile
+++ b/drivers/isdn/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the kernel ISDN subsystem and device drivers.
 
 # Object files in subdirectories
diff --git a/drivers/isdn/capi/Makefile b/drivers/isdn/capi/Makefile
index 4d5b4b71db1e..06da3ed2c40a 100644
--- a/drivers/isdn/capi/Makefile
+++ b/drivers/isdn/capi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the CAPI subsystem.
 
 # Ordering constraints: kernelcapi.o first
diff --git a/drivers/isdn/capi/capilib.c b/drivers/isdn/capi/capilib.c
index 33361f833c01..a39ad3796bba 100644
--- a/drivers/isdn/capi/capilib.c
+++ b/drivers/isdn/capi/capilib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/slab.h>
 #include <linux/kernel.h>
diff --git a/drivers/isdn/gigaset/Makefile b/drivers/isdn/gigaset/Makefile
index c453b72272a0..ac45a2739f56 100644
--- a/drivers/isdn/gigaset/Makefile
+++ b/drivers/isdn/gigaset/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 gigaset-y := common.o interface.o proc.o ev-layer.o asyncdata.o
 gigaset-$(CONFIG_GIGASET_CAPI) += capi.o
 gigaset-$(CONFIG_GIGASET_I4L) += i4l.o
diff --git a/drivers/isdn/hardware/avm/Makefile b/drivers/isdn/hardware/avm/Makefile
index b540e8f2efb6..3830a0573fcc 100644
--- a/drivers/isdn/hardware/avm/Makefile
+++ b/drivers/isdn/hardware/avm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the AVM ISDN device drivers
 
 # Each configuration option enables a list of files.
diff --git a/drivers/isdn/hardware/eicon/Makefile b/drivers/isdn/hardware/eicon/Makefile
index 4fa7fdb7df0d..a0ab2e2d7df0 100644
--- a/drivers/isdn/hardware/eicon/Makefile
+++ b/drivers/isdn/hardware/eicon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Eicon DIVA ISDN drivers.
 
 # Each configuration option enables a list of files.
diff --git a/drivers/isdn/hardware/eicon/adapter.h b/drivers/isdn/hardware/eicon/adapter.h
index 71a7c2f084a7..f9b24eb8781d 100644
--- a/drivers/isdn/hardware/eicon/adapter.h
+++ b/drivers/isdn/hardware/eicon/adapter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: adapter.h,v 1.4 2004/03/21 17:26:01 armin Exp $ */
 
 #ifndef __DIVA_USER_MODE_IDI_ADAPTER_H__
diff --git a/drivers/isdn/hardware/eicon/debug.c b/drivers/isdn/hardware/eicon/debug.c
index 8bc2791bc39c..301788115c4f 100644
--- a/drivers/isdn/hardware/eicon/debug.c
+++ b/drivers/isdn/hardware/eicon/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "platform.h"
 #include "pc.h"
 #include "di_defs.h"
diff --git a/drivers/isdn/hardware/eicon/diva.c b/drivers/isdn/hardware/eicon/diva.c
index d91dd580e978..944a7f338099 100644
--- a/drivers/isdn/hardware/eicon/diva.c
+++ b/drivers/isdn/hardware/eicon/diva.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Id: diva.c,v 1.21.4.1 2004/05/08 14:33:43 armin Exp $ */
 
 #define CARDTYPE_H_WANT_DATA            1
diff --git a/drivers/isdn/hardware/eicon/diva.h b/drivers/isdn/hardware/eicon/diva.h
index e979085d1b89..b067032093a8 100644
--- a/drivers/isdn/hardware/eicon/diva.h
+++ b/drivers/isdn/hardware/eicon/diva.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: diva.h,v 1.1.2.2 2001/02/08 12:25:43 armin Exp $ */
 
 #ifndef __DIVA_XDI_OS_PART_H__
diff --git a/drivers/isdn/hardware/eicon/diva_pci.h b/drivers/isdn/hardware/eicon/diva_pci.h
index bb4b562050f6..7ef5db98ad3c 100644
--- a/drivers/isdn/hardware/eicon/diva_pci.h
+++ b/drivers/isdn/hardware/eicon/diva_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: diva_pci.h,v 1.6 2003/01/04 15:29:45 schindler Exp $ */
 
 #ifndef __DIVA_PCI_INTERFACE_H__
diff --git a/drivers/isdn/hardware/eicon/dqueue.h b/drivers/isdn/hardware/eicon/dqueue.h
index 6992c45457a4..2da9799686ab 100644
--- a/drivers/isdn/hardware/eicon/dqueue.h
+++ b/drivers/isdn/hardware/eicon/dqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: dqueue.h,v 1.1.2.2 2001/02/08 12:25:43 armin Exp $ */
 
 #ifndef _DIVA_USER_MODE_IDI_DATA_QUEUE_H__
diff --git a/drivers/isdn/hardware/eicon/dsp_tst.h b/drivers/isdn/hardware/eicon/dsp_tst.h
index fe36f138be8b..85edd3ea50f7 100644
--- a/drivers/isdn/hardware/eicon/dsp_tst.h
+++ b/drivers/isdn/hardware/eicon/dsp_tst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: dsp_tst.h,v 1.1.2.2 2001/02/08 12:25:43 armin Exp $ */
 
 #ifndef __DIVA_PRI_HOST_TEST_DSPS_H__
diff --git a/drivers/isdn/hardware/eicon/entity.h b/drivers/isdn/hardware/eicon/entity.h
index fdb83416af31..f9767d321db9 100644
--- a/drivers/isdn/hardware/eicon/entity.h
+++ b/drivers/isdn/hardware/eicon/entity.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: entity.h,v 1.4 2004/03/21 17:26:01 armin Exp $ */
 
 #ifndef __DIVAS_USER_MODE_IDI_ENTITY__
diff --git a/drivers/isdn/hardware/eicon/os_4bri.c b/drivers/isdn/hardware/eicon/os_4bri.c
index 1891246807ed..87db5f4df27d 100644
--- a/drivers/isdn/hardware/eicon/os_4bri.c
+++ b/drivers/isdn/hardware/eicon/os_4bri.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Id: os_4bri.c,v 1.28.4.4 2005/02/11 19:40:25 armin Exp $ */
 
 #include "platform.h"
diff --git a/drivers/isdn/hardware/eicon/os_4bri.h b/drivers/isdn/hardware/eicon/os_4bri.h
index 72253278d4f5..94b2709537d8 100644
--- a/drivers/isdn/hardware/eicon/os_4bri.h
+++ b/drivers/isdn/hardware/eicon/os_4bri.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: os_4bri.h,v 1.1.2.2 2001/02/08 12:25:44 armin Exp $ */
 
 #ifndef __DIVA_OS_4_BRI_H__
diff --git a/drivers/isdn/hardware/eicon/os_bri.c b/drivers/isdn/hardware/eicon/os_bri.c
index 20f2653c58fa..de93090bcacb 100644
--- a/drivers/isdn/hardware/eicon/os_bri.c
+++ b/drivers/isdn/hardware/eicon/os_bri.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Id: os_bri.c,v 1.21 2004/03/21 17:26:01 armin Exp $ */
 
 #include "platform.h"
diff --git a/drivers/isdn/hardware/eicon/os_bri.h b/drivers/isdn/hardware/eicon/os_bri.h
index 02e7456f8962..37c92cc53ded 100644
--- a/drivers/isdn/hardware/eicon/os_bri.h
+++ b/drivers/isdn/hardware/eicon/os_bri.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: os_bri.h,v 1.1.2.2 2001/02/08 12:25:44 armin Exp $ */
 
 #ifndef __DIVA_OS_BRI_REV_1_H__
diff --git a/drivers/isdn/hardware/eicon/os_pri.c b/drivers/isdn/hardware/eicon/os_pri.c
index da4957abb422..b20f1fb89d14 100644
--- a/drivers/isdn/hardware/eicon/os_pri.c
+++ b/drivers/isdn/hardware/eicon/os_pri.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Id: os_pri.c,v 1.32 2004/03/21 17:26:01 armin Exp $ */
 
 #include "platform.h"
diff --git a/drivers/isdn/hardware/eicon/os_pri.h b/drivers/isdn/hardware/eicon/os_pri.h
index 537c74d042e7..0e91855b171a 100644
--- a/drivers/isdn/hardware/eicon/os_pri.h
+++ b/drivers/isdn/hardware/eicon/os_pri.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: os_pri.h,v 1.1.2.2 2001/02/08 12:25:44 armin Exp $ */
 
 #ifndef __DIVA_OS_PRI_REV_1_H__
diff --git a/drivers/isdn/hardware/eicon/um_idi.c b/drivers/isdn/hardware/eicon/um_idi.c
index e1519718ce67..db4dd4ff3642 100644
--- a/drivers/isdn/hardware/eicon/um_idi.c
+++ b/drivers/isdn/hardware/eicon/um_idi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Id: um_idi.c,v 1.14 2004/03/21 17:54:37 armin Exp $ */
 
 #include "platform.h"
diff --git a/drivers/isdn/hardware/eicon/um_idi.h b/drivers/isdn/hardware/eicon/um_idi.h
index ffb88f7b42fc..9aedd9e351a3 100644
--- a/drivers/isdn/hardware/eicon/um_idi.h
+++ b/drivers/isdn/hardware/eicon/um_idi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: um_idi.h,v 1.6 2004/03/21 17:26:01 armin Exp $ */
 
 #ifndef __DIVA_USER_MODE_IDI_CORE_H__
diff --git a/drivers/isdn/hardware/eicon/um_xdi.h b/drivers/isdn/hardware/eicon/um_xdi.h
index b48fc042a5bc..1f37aa4efd18 100644
--- a/drivers/isdn/hardware/eicon/um_xdi.h
+++ b/drivers/isdn/hardware/eicon/um_xdi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: um_xdi.h,v 1.1.2.2 2002/10/02 14:38:38 armin Exp $ */
 
 #ifndef __DIVA_USER_MODE_XDI_H__
diff --git a/drivers/isdn/hardware/eicon/xdi_adapter.h b/drivers/isdn/hardware/eicon/xdi_adapter.h
index d303e65dbe6c..b036e217c659 100644
--- a/drivers/isdn/hardware/eicon/xdi_adapter.h
+++ b/drivers/isdn/hardware/eicon/xdi_adapter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: xdi_adapter.h,v 1.7 2004/03/21 17:26:01 armin Exp $ */
 
 #ifndef __DIVA_OS_XDI_ADAPTER_H__
diff --git a/drivers/isdn/hardware/eicon/xdi_msg.h b/drivers/isdn/hardware/eicon/xdi_msg.h
index 2498c349a32e..0646079bf466 100644
--- a/drivers/isdn/hardware/eicon/xdi_msg.h
+++ b/drivers/isdn/hardware/eicon/xdi_msg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: xdi_msg.h,v 1.1.2.2 2001/02/16 08:40:36 armin Exp $ */
 
 #ifndef __DIVA_XDI_UM_CFG_MESSAGE_H__
diff --git a/drivers/isdn/hardware/mISDN/Makefile b/drivers/isdn/hardware/mISDN/Makefile
index 2987d990993f..422f9fd8ab9a 100644
--- a/drivers/isdn/hardware/mISDN/Makefile
+++ b/drivers/isdn/hardware/mISDN/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the modular ISDN hardware drivers
 #
diff --git a/drivers/isdn/hardware/mISDN/hfc_multi.h b/drivers/isdn/hardware/mISDN/hfc_multi.h
index c601f880141e..5acf826d913c 100644
--- a/drivers/isdn/hardware/mISDN/hfc_multi.h
+++ b/drivers/isdn/hardware/mISDN/hfc_multi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * see notice in hfc_multi.c
  */
diff --git a/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h b/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h
index 8a254747768e..b0d772340e16 100644
--- a/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h
+++ b/drivers/isdn/hardware/mISDN/hfc_multi_8xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * For License see notice in hfc_multi.c
  *
diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.h b/drivers/isdn/hardware/mISDN/hfcsusb.h
index 5f8f1d9cac11..e4fa2a2824af 100644
--- a/drivers/isdn/hardware/mISDN/hfcsusb.h
+++ b/drivers/isdn/hardware/mISDN/hfcsusb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hfcsusb.h, HFC-S USB mISDN driver
  */
diff --git a/drivers/isdn/hisax/Makefile b/drivers/isdn/hisax/Makefile
index 646368fe41c9..3eca9d23f1c2 100644
--- a/drivers/isdn/hisax/Makefile
+++ b/drivers/isdn/hisax/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the hisax ISDN device driver
 
 # The target object and module list name.
diff --git a/drivers/isdn/hisax/hfc4s8s_l1.h b/drivers/isdn/hisax/hfc4s8s_l1.h
index 6a8f89113d2f..4665b9d5df16 100644
--- a/drivers/isdn/hisax/hfc4s8s_l1.h
+++ b/drivers/isdn/hisax/hfc4s8s_l1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /***************************************************************/
 /*  $Id: hfc4s8s_l1.h,v 1.1 2005/02/02 17:28:55 martinb1 Exp $ */
 /*                                                             */
diff --git a/drivers/isdn/hisax/hfc_usb.h b/drivers/isdn/hisax/hfc_usb.h
index f987bf89da1a..9a212330e8a8 100644
--- a/drivers/isdn/hisax/hfc_usb.h
+++ b/drivers/isdn/hisax/hfc_usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hfc_usb.h
  *
diff --git a/drivers/isdn/hisax/hisax_fcpcipnp.h b/drivers/isdn/hisax/hisax_fcpcipnp.h
index aedef97827fe..1f64e9937aa1 100644
--- a/drivers/isdn/hisax/hisax_fcpcipnp.h
+++ b/drivers/isdn/hisax/hisax_fcpcipnp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "hisax_if.h"
 #include "hisax_isac.h"
 #include <linux/pci.h>
diff --git a/drivers/isdn/hisax/hisax_isac.h b/drivers/isdn/hisax/hisax_isac.h
index 08890cf4d923..d7301da97991 100644
--- a/drivers/isdn/hisax/hisax_isac.h
+++ b/drivers/isdn/hisax/hisax_isac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HISAX_ISAC_H__
 #define __HISAX_ISAC_H__
 
diff --git a/drivers/isdn/i4l/Makefile b/drivers/isdn/i4l/Makefile
index cb9d3bb9fae0..be77500c9e86 100644
--- a/drivers/isdn/i4l/Makefile
+++ b/drivers/isdn/i4l/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the kernel ISDN subsystem and device drivers.
 
 # Each configuration option enables a list of files.
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 6c44609fd83a..cd2b3c69771a 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -825,7 +825,6 @@ isdn_ppp_write(int min, struct file *file, const char __user *buf, int count)
 	isdn_net_local *lp;
 	struct ippp_struct *is;
 	int proto;
-	unsigned char protobuf[4];
 
 	is = file->private_data;
 
@@ -839,24 +838,28 @@ isdn_ppp_write(int min, struct file *file, const char __user *buf, int count)
 	if (!lp)
 		printk(KERN_DEBUG "isdn_ppp_write: lp == NULL\n");
 	else {
-		/*
-		 * Don't reset huptimer for
-		 * LCP packets. (Echo requests).
-		 */
-		if (copy_from_user(protobuf, buf, 4))
-			return -EFAULT;
-		proto = PPP_PROTOCOL(protobuf);
-		if (proto != PPP_LCP)
-			lp->huptimer = 0;
+		if (lp->isdn_device < 0 || lp->isdn_channel < 0) {
+			unsigned char protobuf[4];
+			/*
+			 * Don't reset huptimer for
+			 * LCP packets. (Echo requests).
+			 */
+			if (copy_from_user(protobuf, buf, 4))
+				return -EFAULT;
+
+			proto = PPP_PROTOCOL(protobuf);
+			if (proto != PPP_LCP)
+				lp->huptimer = 0;
 
-		if (lp->isdn_device < 0 || lp->isdn_channel < 0)
 			return 0;
+		}
 
 		if ((dev->drv[lp->isdn_device]->flags & DRV_FLAG_RUNNING) &&
 		    lp->dialstate == 0 &&
 		    (lp->flags & ISDN_NET_CONNECTED)) {
 			unsigned short hl;
 			struct sk_buff *skb;
+			unsigned char *cpy_buf;
 			/*
 			 * we need to reserve enough space in front of
 			 * sk_buff. old call to dev_alloc_skb only reserved
@@ -869,11 +872,21 @@ isdn_ppp_write(int min, struct file *file, const char __user *buf, int count)
 				return count;
 			}
 			skb_reserve(skb, hl);
-			if (copy_from_user(skb_put(skb, count), buf, count))
+			cpy_buf = skb_put(skb, count);
+			if (copy_from_user(cpy_buf, buf, count))
 			{
 				kfree_skb(skb);
 				return -EFAULT;
 			}
+
+			/*
+			 * Don't reset huptimer for
+			 * LCP packets. (Echo requests).
+			 */
+			proto = PPP_PROTOCOL(cpy_buf);
+			if (proto != PPP_LCP)
+				lp->huptimer = 0;
+
 			if (is->debug & 0x40) {
 				printk(KERN_DEBUG "ppp xmit: len %d\n", (int) skb->len);
 				isdn_ppp_frame_log("xmit", skb->data, skb->len, 32, is->unit, lp->ppp_slot);
diff --git a/drivers/isdn/mISDN/Makefile b/drivers/isdn/mISDN/Makefile
index 0a6bd2a9e730..f3b4b7fa85f8 100644
--- a/drivers/isdn/mISDN/Makefile
+++ b/drivers/isdn/mISDN/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the modular ISDN driver
 #
diff --git a/drivers/isdn/mISDN/dsp_hwec.h b/drivers/isdn/mISDN/dsp_hwec.h
index bbca1eb5a888..c9cb0ea249da 100644
--- a/drivers/isdn/mISDN/dsp_hwec.h
+++ b/drivers/isdn/mISDN/dsp_hwec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dsp_hwec.h
  */
diff --git a/drivers/isdn/mISDN/l1oip.h b/drivers/isdn/mISDN/l1oip.h
index 661c060ada49..7ea10db20e3a 100644
--- a/drivers/isdn/mISDN/l1oip.h
+++ b/drivers/isdn/mISDN/l1oip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * see notice in l1oip.c
  */
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 7d7b26552923..35980450db9b 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 # LED Core
 obj-$(CONFIG_NEW_LEDS)			+= led-core.o
diff --git a/drivers/leds/leds-as3645a.c b/drivers/leds/leds-as3645a.c
index bbbbe0898233..9a257f969300 100644
--- a/drivers/leds/leds-as3645a.c
+++ b/drivers/leds/leds-as3645a.c
@@ -112,6 +112,10 @@
 #define AS_PEAK_mA_TO_REG(a) \
 	((min_t(u32, AS_PEAK_mA_MAX, a) - 1250) / 250)
 
+/* LED numbers for Devicetree */
+#define AS_LED_FLASH				0
+#define AS_LED_INDICATOR			1
+
 enum as_mode {
 	AS_MODE_EXT_TORCH = 0 << AS_CONTROL_MODE_SETTING_SHIFT,
 	AS_MODE_INDICATOR = 1 << AS_CONTROL_MODE_SETTING_SHIFT,
@@ -491,10 +495,29 @@ static int as3645a_parse_node(struct as3645a *flash,
 			      struct device_node *node)
 {
 	struct as3645a_config *cfg = &flash->cfg;
+	struct device_node *child;
 	const char *name;
 	int rval;
 
-	flash->flash_node = of_get_child_by_name(node, "flash");
+	for_each_child_of_node(node, child) {
+		u32 id = 0;
+
+		of_property_read_u32(child, "reg", &id);
+
+		switch (id) {
+		case AS_LED_FLASH:
+			flash->flash_node = of_node_get(child);
+			break;
+		case AS_LED_INDICATOR:
+			flash->indicator_node = of_node_get(child);
+			break;
+		default:
+			dev_warn(&flash->client->dev,
+				 "unknown LED %u encountered, ignoring\n", id);
+			break;
+		}
+	}
+
 	if (!flash->flash_node) {
 		dev_err(&flash->client->dev, "can't find flash node\n");
 		return -ENODEV;
@@ -534,11 +557,10 @@ static int as3645a_parse_node(struct as3645a *flash,
 	of_property_read_u32(flash->flash_node, "voltage-reference",
 			     &cfg->voltage_reference);
 
-	of_property_read_u32(flash->flash_node, "peak-current-limit",
+	of_property_read_u32(flash->flash_node, "ams,input-max-microamp",
 			     &cfg->peak);
 	cfg->peak = AS_PEAK_mA_TO_REG(cfg->peak);
 
-	flash->indicator_node = of_get_child_by_name(node, "indicator");
 	if (!flash->indicator_node) {
 		dev_warn(&flash->client->dev,
 			 "can't find indicator node\n");
@@ -721,6 +743,7 @@ static int as3645a_remove(struct i2c_client *client)
 	as3645a_set_control(flash, AS_MODE_EXT_TORCH, false);
 
 	v4l2_flash_release(flash->vf);
+	v4l2_flash_release(flash->vfind);
 
 	led_classdev_flash_unregister(&flash->fled);
 	led_classdev_unregister(&flash->iled_cdev);
diff --git a/drivers/leds/leds-clevo-mail.c b/drivers/leds/leds-clevo-mail.c
index 0f9ed1ea0e89..492789f56896 100644
--- a/drivers/leds/leds-clevo-mail.c
+++ b/drivers/leds/leds-clevo-mail.c
@@ -40,7 +40,7 @@ static int __init clevo_mail_led_dmi_callback(const struct dmi_system_id *id)
  * detected as working, but in reality it is not) as low as
  * possible.
  */
-static struct dmi_system_id clevo_mail_led_dmi_table[] __initdata = {
+static const struct dmi_system_id clevo_mail_led_dmi_table[] __initconst = {
 	{
 		.callback = clevo_mail_led_dmi_callback,
 		.ident = "Clevo D410J",
diff --git a/drivers/leds/leds-ss4200.c b/drivers/leds/leds-ss4200.c
index 732eb86bc1a5..a9db8674cd02 100644
--- a/drivers/leds/leds-ss4200.c
+++ b/drivers/leds/leds-ss4200.c
@@ -91,7 +91,7 @@ MODULE_PARM_DESC(nodetect, "Skip DMI-based hardware detection");
  * detected as working, but in reality it is not) as low as
  * possible.
  */
-static struct dmi_system_id nas_led_whitelist[] __initdata = {
+static const struct dmi_system_id nas_led_whitelist[] __initconst = {
 	{
 		.callback = ss4200_led_dmi_callback,
 		.ident = "Intel SS4200-E",
diff --git a/drivers/leds/trigger/Makefile b/drivers/leds/trigger/Makefile
index a72c43cffebf..9f2e868811e2 100644
--- a/drivers/leds/trigger/Makefile
+++ b/drivers/leds/trigger/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_LEDS_TRIGGER_TIMER)	+= ledtrig-timer.o
 obj-$(CONFIG_LEDS_TRIGGER_ONESHOT)	+= ledtrig-oneshot.o
 obj-$(CONFIG_LEDS_TRIGGER_DISK)		+= ledtrig-disk.o
diff --git a/drivers/lightnvm/Kconfig b/drivers/lightnvm/Kconfig
index ead61a93cb4e..2a953efec4e1 100644
--- a/drivers/lightnvm/Kconfig
+++ b/drivers/lightnvm/Kconfig
@@ -4,7 +4,8 @@
 
 menuconfig NVM
 	bool "Open-Channel SSD target support"
-	depends on BLOCK && HAS_DMA
+	depends on BLOCK && HAS_DMA && PCI
+	select BLK_DEV_NVME
 	help
 	  Say Y here to get to enable Open-channel SSDs.
 
diff --git a/drivers/lightnvm/Makefile b/drivers/lightnvm/Makefile
index 82d1a117fb27..2c3fd9d2c08c 100644
--- a/drivers/lightnvm/Makefile
+++ b/drivers/lightnvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Open-Channel SSDs.
 #
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
index ddae430b6eae..83249b43dd06 100644
--- a/drivers/lightnvm/core.c
+++ b/drivers/lightnvm/core.c
@@ -22,6 +22,7 @@
 #include <linux/types.h>
 #include <linux/sem.h>
 #include <linux/bitmap.h>
+#include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/miscdevice.h>
 #include <linux/lightnvm.h>
@@ -138,7 +139,6 @@ static struct nvm_tgt_dev *nvm_create_tgt_dev(struct nvm_dev *dev,
 	int prev_nr_luns;
 	int i, j;
 
-	nr_chnls = nr_luns / dev->geo.luns_per_chnl;
 	nr_chnls = (nr_chnls_mod == 0) ? nr_chnls : nr_chnls + 1;
 
 	dev_map = kmalloc(sizeof(struct nvm_dev_map), GFP_KERNEL);
@@ -226,6 +226,24 @@ static const struct block_device_operations nvm_fops = {
 	.owner		= THIS_MODULE,
 };
 
+static struct nvm_tgt_type *nvm_find_target_type(const char *name, int lock)
+{
+	struct nvm_tgt_type *tmp, *tt = NULL;
+
+	if (lock)
+		down_write(&nvm_tgtt_lock);
+
+	list_for_each_entry(tmp, &nvm_tgt_types, list)
+		if (!strcmp(name, tmp->name)) {
+			tt = tmp;
+			break;
+		}
+
+	if (lock)
+		up_write(&nvm_tgtt_lock);
+	return tt;
+}
+
 static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
 {
 	struct nvm_ioctl_create_simple *s = &create->conf.s;
@@ -316,6 +334,8 @@ static int nvm_create_tgt(struct nvm_dev *dev, struct nvm_ioctl_create *create)
 	list_add_tail(&t->list, &dev->targets);
 	mutex_unlock(&dev->mlock);
 
+	__module_get(tt->owner);
+
 	return 0;
 err_sysfs:
 	if (tt->exit)
@@ -351,6 +371,7 @@ static void __nvm_remove_target(struct nvm_target *t)
 
 	nvm_remove_tgt_dev(t->dev, 1);
 	put_disk(tdisk);
+	module_put(t->type->owner);
 
 	list_del(&t->list);
 	kfree(t);
@@ -532,25 +553,6 @@ void nvm_part_to_tgt(struct nvm_dev *dev, sector_t *entries,
 }
 EXPORT_SYMBOL(nvm_part_to_tgt);
 
-struct nvm_tgt_type *nvm_find_target_type(const char *name, int lock)
-{
-	struct nvm_tgt_type *tmp, *tt = NULL;
-
-	if (lock)
-		down_write(&nvm_tgtt_lock);
-
-	list_for_each_entry(tmp, &nvm_tgt_types, list)
-		if (!strcmp(name, tmp->name)) {
-			tt = tmp;
-			break;
-		}
-
-	if (lock)
-		up_write(&nvm_tgtt_lock);
-	return tt;
-}
-EXPORT_SYMBOL(nvm_find_target_type);
-
 int nvm_register_tgt_type(struct nvm_tgt_type *tt)
 {
 	int ret = 0;
@@ -571,9 +573,9 @@ void nvm_unregister_tgt_type(struct nvm_tgt_type *tt)
 	if (!tt)
 		return;
 
-	down_write(&nvm_lock);
+	down_write(&nvm_tgtt_lock);
 	list_del(&tt->list);
-	up_write(&nvm_lock);
+	up_write(&nvm_tgtt_lock);
 }
 EXPORT_SYMBOL(nvm_unregister_tgt_type);
 
@@ -602,6 +604,52 @@ static struct nvm_dev *nvm_find_nvm_dev(const char *name)
 	return NULL;
 }
 
+static int nvm_set_rqd_ppalist(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd,
+			const struct ppa_addr *ppas, int nr_ppas)
+{
+	struct nvm_dev *dev = tgt_dev->parent;
+	struct nvm_geo *geo = &tgt_dev->geo;
+	int i, plane_cnt, pl_idx;
+	struct ppa_addr ppa;
+
+	if (geo->plane_mode == NVM_PLANE_SINGLE && nr_ppas == 1) {
+		rqd->nr_ppas = nr_ppas;
+		rqd->ppa_addr = ppas[0];
+
+		return 0;
+	}
+
+	rqd->nr_ppas = nr_ppas;
+	rqd->ppa_list = nvm_dev_dma_alloc(dev, GFP_KERNEL, &rqd->dma_ppa_list);
+	if (!rqd->ppa_list) {
+		pr_err("nvm: failed to allocate dma memory\n");
+		return -ENOMEM;
+	}
+
+	plane_cnt = geo->plane_mode;
+	rqd->nr_ppas *= plane_cnt;
+
+	for (i = 0; i < nr_ppas; i++) {
+		for (pl_idx = 0; pl_idx < plane_cnt; pl_idx++) {
+			ppa = ppas[i];
+			ppa.g.pl = pl_idx;
+			rqd->ppa_list[(pl_idx * nr_ppas) + i] = ppa;
+		}
+	}
+
+	return 0;
+}
+
+static void nvm_free_rqd_ppalist(struct nvm_tgt_dev *tgt_dev,
+			struct nvm_rq *rqd)
+{
+	if (!rqd->ppa_list)
+		return;
+
+	nvm_dev_dma_free(tgt_dev->parent, rqd->ppa_list, rqd->dma_ppa_list);
+}
+
+
 int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
 		       int nr_ppas, int type)
 {
@@ -616,7 +664,7 @@ int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
 
 	memset(&rqd, 0, sizeof(struct nvm_rq));
 
-	nvm_set_rqd_ppalist(tgt_dev, &rqd, ppas, nr_ppas, 1);
+	nvm_set_rqd_ppalist(tgt_dev, &rqd, ppas, nr_ppas);
 	nvm_rq_tgt_to_dev(tgt_dev, &rqd);
 
 	ret = dev->ops->set_bb_tbl(dev, &rqd.ppa_addr, rqd.nr_ppas, type);
@@ -658,12 +706,25 @@ int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
 }
 EXPORT_SYMBOL(nvm_submit_io);
 
-static void nvm_end_io_sync(struct nvm_rq *rqd)
+int nvm_submit_io_sync(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
 {
-	struct completion *waiting = rqd->private;
+	struct nvm_dev *dev = tgt_dev->parent;
+	int ret;
 
-	complete(waiting);
+	if (!dev->ops->submit_io_sync)
+		return -ENODEV;
+
+	nvm_rq_tgt_to_dev(tgt_dev, rqd);
+
+	rqd->dev = tgt_dev;
+
+	/* In case of error, fail with right address format */
+	ret = dev->ops->submit_io_sync(dev, rqd);
+	nvm_rq_dev_to_tgt(tgt_dev, rqd);
+
+	return ret;
 }
+EXPORT_SYMBOL(nvm_submit_io_sync);
 
 int nvm_erase_sync(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
 								int nr_ppas)
@@ -671,25 +732,21 @@ int nvm_erase_sync(struct nvm_tgt_dev *tgt_dev, struct ppa_addr *ppas,
 	struct nvm_geo *geo = &tgt_dev->geo;
 	struct nvm_rq rqd;
 	int ret;
-	DECLARE_COMPLETION_ONSTACK(wait);
 
 	memset(&rqd, 0, sizeof(struct nvm_rq));
 
 	rqd.opcode = NVM_OP_ERASE;
-	rqd.end_io = nvm_end_io_sync;
-	rqd.private = &wait;
 	rqd.flags = geo->plane_mode >> 1;
 
-	ret = nvm_set_rqd_ppalist(tgt_dev, &rqd, ppas, nr_ppas, 1);
+	ret = nvm_set_rqd_ppalist(tgt_dev, &rqd, ppas, nr_ppas);
 	if (ret)
 		return ret;
 
-	ret = nvm_submit_io(tgt_dev, &rqd);
+	ret = nvm_submit_io_sync(tgt_dev, &rqd);
 	if (ret) {
 		pr_err("rrpr: erase I/O submission failed: %d\n", ret);
 		goto free_ppa_list;
 	}
-	wait_for_completion_io(&wait);
 
 free_ppa_list:
 	nvm_free_rqd_ppalist(tgt_dev, &rqd);
@@ -775,57 +832,6 @@ void nvm_put_area(struct nvm_tgt_dev *tgt_dev, sector_t begin)
 }
 EXPORT_SYMBOL(nvm_put_area);
 
-int nvm_set_rqd_ppalist(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd,
-			const struct ppa_addr *ppas, int nr_ppas, int vblk)
-{
-	struct nvm_dev *dev = tgt_dev->parent;
-	struct nvm_geo *geo = &tgt_dev->geo;
-	int i, plane_cnt, pl_idx;
-	struct ppa_addr ppa;
-
-	if ((!vblk || geo->plane_mode == NVM_PLANE_SINGLE) && nr_ppas == 1) {
-		rqd->nr_ppas = nr_ppas;
-		rqd->ppa_addr = ppas[0];
-
-		return 0;
-	}
-
-	rqd->nr_ppas = nr_ppas;
-	rqd->ppa_list = nvm_dev_dma_alloc(dev, GFP_KERNEL, &rqd->dma_ppa_list);
-	if (!rqd->ppa_list) {
-		pr_err("nvm: failed to allocate dma memory\n");
-		return -ENOMEM;
-	}
-
-	if (!vblk) {
-		for (i = 0; i < nr_ppas; i++)
-			rqd->ppa_list[i] = ppas[i];
-	} else {
-		plane_cnt = geo->plane_mode;
-		rqd->nr_ppas *= plane_cnt;
-
-		for (i = 0; i < nr_ppas; i++) {
-			for (pl_idx = 0; pl_idx < plane_cnt; pl_idx++) {
-				ppa = ppas[i];
-				ppa.g.pl = pl_idx;
-				rqd->ppa_list[(pl_idx * nr_ppas) + i] = ppa;
-			}
-		}
-	}
-
-	return 0;
-}
-EXPORT_SYMBOL(nvm_set_rqd_ppalist);
-
-void nvm_free_rqd_ppalist(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
-{
-	if (!rqd->ppa_list)
-		return;
-
-	nvm_dev_dma_free(tgt_dev->parent, rqd->ppa_list, rqd->dma_ppa_list);
-}
-EXPORT_SYMBOL(nvm_free_rqd_ppalist);
-
 void nvm_end_io(struct nvm_rq *rqd)
 {
 	struct nvm_tgt_dev *tgt_dev = rqd->dev;
@@ -1177,7 +1183,7 @@ static long nvm_ioctl_info(struct file *file, void __user *arg)
 	info->version[1] = NVM_VERSION_MINOR;
 	info->version[2] = NVM_VERSION_PATCH;
 
-	down_write(&nvm_lock);
+	down_write(&nvm_tgtt_lock);
 	list_for_each_entry(tt, &nvm_tgt_types, list) {
 		struct nvm_ioctl_info_tgt *tgt = &info->tgts[tgt_iter];
 
@@ -1190,7 +1196,7 @@ static long nvm_ioctl_info(struct file *file, void __user *arg)
 	}
 
 	info->tgtsize = tgt_iter;
-	up_write(&nvm_lock);
+	up_write(&nvm_tgtt_lock);
 
 	if (copy_to_user(arg, info, sizeof(struct nvm_ioctl_info))) {
 		kfree(info);
diff --git a/drivers/lightnvm/pblk-cache.c b/drivers/lightnvm/pblk-cache.c
index 024a8fc93069..0d227ef7d1b9 100644
--- a/drivers/lightnvm/pblk-cache.c
+++ b/drivers/lightnvm/pblk-cache.c
@@ -43,8 +43,10 @@ retry:
 	if (unlikely(!bio_has_data(bio)))
 		goto out;
 
-	w_ctx.flags = flags;
 	pblk_ppa_set_empty(&w_ctx.ppa);
+	w_ctx.flags = flags;
+	if (bio->bi_opf & REQ_PREFLUSH)
+		w_ctx.flags |= PBLK_FLUSH_ENTRY;
 
 	for (i = 0; i < nr_entries; i++) {
 		void *data = bio_data(bio);
@@ -73,12 +75,11 @@ out:
  * On GC the incoming lbas are not necessarily sequential. Also, some of the
  * lbas might not be valid entries, which are marked as empty by the GC thread
  */
-int pblk_write_gc_to_cache(struct pblk *pblk, void *data, u64 *lba_list,
-			   unsigned int nr_entries, unsigned int nr_rec_entries,
-			   struct pblk_line *gc_line, unsigned long flags)
+int pblk_write_gc_to_cache(struct pblk *pblk, struct pblk_gc_rq *gc_rq)
 {
 	struct pblk_w_ctx w_ctx;
 	unsigned int bpos, pos;
+	void *data = gc_rq->data;
 	int i, valid_entries;
 
 	/* Update the write buffer head (mem) with the entries that we can
@@ -86,28 +87,29 @@ int pblk_write_gc_to_cache(struct pblk *pblk, void *data, u64 *lba_list,
 	 * rollback from here on.
 	 */
 retry:
-	if (!pblk_rb_may_write_gc(&pblk->rwb, nr_rec_entries, &bpos)) {
+	if (!pblk_rb_may_write_gc(&pblk->rwb, gc_rq->secs_to_gc, &bpos)) {
 		io_schedule();
 		goto retry;
 	}
 
-	w_ctx.flags = flags;
+	w_ctx.flags = PBLK_IOTYPE_GC;
 	pblk_ppa_set_empty(&w_ctx.ppa);
 
-	for (i = 0, valid_entries = 0; i < nr_entries; i++) {
-		if (lba_list[i] == ADDR_EMPTY)
+	for (i = 0, valid_entries = 0; i < gc_rq->nr_secs; i++) {
+		if (gc_rq->lba_list[i] == ADDR_EMPTY)
 			continue;
 
-		w_ctx.lba = lba_list[i];
+		w_ctx.lba = gc_rq->lba_list[i];
 
 		pos = pblk_rb_wrap_pos(&pblk->rwb, bpos + valid_entries);
-		pblk_rb_write_entry_gc(&pblk->rwb, data, w_ctx, gc_line, pos);
+		pblk_rb_write_entry_gc(&pblk->rwb, data, w_ctx, gc_rq->line,
+						gc_rq->paddr_list[i], pos);
 
 		data += PBLK_EXPOSED_PAGE_SIZE;
 		valid_entries++;
 	}
 
-	WARN_ONCE(nr_rec_entries != valid_entries,
+	WARN_ONCE(gc_rq->secs_to_gc != valid_entries,
 					"pblk: inconsistent GC write\n");
 
 #ifdef CONFIG_NVM_DEBUG
diff --git a/drivers/lightnvm/pblk-core.c b/drivers/lightnvm/pblk-core.c
index 81501644fb15..ce90213a42fa 100644
--- a/drivers/lightnvm/pblk-core.c
+++ b/drivers/lightnvm/pblk-core.c
@@ -18,6 +18,31 @@
 
 #include "pblk.h"
 
+static void pblk_line_mark_bb(struct work_struct *work)
+{
+	struct pblk_line_ws *line_ws = container_of(work, struct pblk_line_ws,
+									ws);
+	struct pblk *pblk = line_ws->pblk;
+	struct nvm_tgt_dev *dev = pblk->dev;
+	struct ppa_addr *ppa = line_ws->priv;
+	int ret;
+
+	ret = nvm_set_tgt_bb_tbl(dev, ppa, 1, NVM_BLK_T_GRWN_BAD);
+	if (ret) {
+		struct pblk_line *line;
+		int pos;
+
+		line = &pblk->lines[pblk_dev_ppa_to_line(*ppa)];
+		pos = pblk_dev_ppa_to_pos(&dev->geo, *ppa);
+
+		pr_err("pblk: failed to mark bb, line:%d, pos:%d\n",
+				line->id, pos);
+	}
+
+	kfree(ppa);
+	mempool_free(line_ws, pblk->gen_ws_pool);
+}
+
 static void pblk_mark_bb(struct pblk *pblk, struct pblk_line *line,
 			 struct ppa_addr *ppa)
 {
@@ -33,7 +58,8 @@ static void pblk_mark_bb(struct pblk *pblk, struct pblk_line *line,
 		pr_err("pblk: attempted to erase bb: line:%d, pos:%d\n",
 							line->id, pos);
 
-	pblk_line_run_ws(pblk, NULL, ppa, pblk_line_mark_bb, pblk->bb_wq);
+	pblk_gen_run_ws(pblk, NULL, ppa, pblk_line_mark_bb,
+						GFP_ATOMIC, pblk->bb_wq);
 }
 
 static void __pblk_end_io_erase(struct pblk *pblk, struct nvm_rq *rqd)
@@ -63,7 +89,7 @@ static void pblk_end_io_erase(struct nvm_rq *rqd)
 	struct pblk *pblk = rqd->private;
 
 	__pblk_end_io_erase(pblk, rqd);
-	mempool_free(rqd, pblk->g_rq_pool);
+	mempool_free(rqd, pblk->e_rq_pool);
 }
 
 void __pblk_map_invalidate(struct pblk *pblk, struct pblk_line *line,
@@ -77,11 +103,7 @@ void __pblk_map_invalidate(struct pblk *pblk, struct pblk_line *line,
 	 * that newer updates are not overwritten.
 	 */
 	spin_lock(&line->lock);
-	if (line->state == PBLK_LINESTATE_GC ||
-					line->state == PBLK_LINESTATE_FREE) {
-		spin_unlock(&line->lock);
-		return;
-	}
+	WARN_ON(line->state == PBLK_LINESTATE_FREE);
 
 	if (test_and_set_bit(paddr, line->invalid_bitmap)) {
 		WARN_ONCE(1, "pblk: double invalidate\n");
@@ -98,8 +120,7 @@ void __pblk_map_invalidate(struct pblk *pblk, struct pblk_line *line,
 		spin_lock(&l_mg->gc_lock);
 		spin_lock(&line->lock);
 		/* Prevent moving a line that has just been chosen for GC */
-		if (line->state == PBLK_LINESTATE_GC ||
-					line->state == PBLK_LINESTATE_FREE) {
+		if (line->state == PBLK_LINESTATE_GC) {
 			spin_unlock(&line->lock);
 			spin_unlock(&l_mg->gc_lock);
 			return;
@@ -150,17 +171,25 @@ static void pblk_invalidate_range(struct pblk *pblk, sector_t slba,
 	spin_unlock(&pblk->trans_lock);
 }
 
-struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int rw)
+/* Caller must guarantee that the request is a valid type */
+struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int type)
 {
 	mempool_t *pool;
 	struct nvm_rq *rqd;
 	int rq_size;
 
-	if (rw == WRITE) {
+	switch (type) {
+	case PBLK_WRITE:
+	case PBLK_WRITE_INT:
 		pool = pblk->w_rq_pool;
 		rq_size = pblk_w_rq_size;
-	} else {
-		pool = pblk->g_rq_pool;
+		break;
+	case PBLK_READ:
+		pool = pblk->r_rq_pool;
+		rq_size = pblk_g_rq_size;
+		break;
+	default:
+		pool = pblk->e_rq_pool;
 		rq_size = pblk_g_rq_size;
 	}
 
@@ -170,15 +199,30 @@ struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int rw)
 	return rqd;
 }
 
-void pblk_free_rqd(struct pblk *pblk, struct nvm_rq *rqd, int rw)
+/* Typically used on completion path. Cannot guarantee request consistency */
+void pblk_free_rqd(struct pblk *pblk, struct nvm_rq *rqd, int type)
 {
+	struct nvm_tgt_dev *dev = pblk->dev;
 	mempool_t *pool;
 
-	if (rw == WRITE)
+	switch (type) {
+	case PBLK_WRITE:
+		kfree(((struct pblk_c_ctx *)nvm_rq_to_pdu(rqd))->lun_bitmap);
+	case PBLK_WRITE_INT:
 		pool = pblk->w_rq_pool;
-	else
-		pool = pblk->g_rq_pool;
+		break;
+	case PBLK_READ:
+		pool = pblk->r_rq_pool;
+		break;
+	case PBLK_ERASE:
+		pool = pblk->e_rq_pool;
+		break;
+	default:
+		pr_err("pblk: trying to free unknown rqd type\n");
+		return;
+	}
 
+	nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list);
 	mempool_free(rqd, pool);
 }
 
@@ -190,10 +234,9 @@ void pblk_bio_free_pages(struct pblk *pblk, struct bio *bio, int off,
 
 	WARN_ON(off + nr_pages != bio->bi_vcnt);
 
-	bio_advance(bio, off * PBLK_EXPOSED_PAGE_SIZE);
 	for (i = off; i < nr_pages + off; i++) {
 		bv = bio->bi_io_vec[i];
-		mempool_free(bv.bv_page, pblk->page_pool);
+		mempool_free(bv.bv_page, pblk->page_bio_pool);
 	}
 }
 
@@ -205,14 +248,12 @@ int pblk_bio_add_pages(struct pblk *pblk, struct bio *bio, gfp_t flags,
 	int i, ret;
 
 	for (i = 0; i < nr_pages; i++) {
-		page = mempool_alloc(pblk->page_pool, flags);
-		if (!page)
-			goto err;
+		page = mempool_alloc(pblk->page_bio_pool, flags);
 
 		ret = bio_add_pc_page(q, bio, page, PBLK_EXPOSED_PAGE_SIZE, 0);
 		if (ret != PBLK_EXPOSED_PAGE_SIZE) {
 			pr_err("pblk: could not add page to bio\n");
-			mempool_free(page, pblk->page_pool);
+			mempool_free(page, pblk->page_bio_pool);
 			goto err;
 		}
 	}
@@ -245,13 +286,6 @@ void pblk_write_should_kick(struct pblk *pblk)
 		pblk_write_kick(pblk);
 }
 
-void pblk_end_bio_sync(struct bio *bio)
-{
-	struct completion *waiting = bio->bi_private;
-
-	complete(waiting);
-}
-
 void pblk_end_io_sync(struct nvm_rq *rqd)
 {
 	struct completion *waiting = rqd->private;
@@ -259,7 +293,7 @@ void pblk_end_io_sync(struct nvm_rq *rqd)
 	complete(waiting);
 }
 
-void pblk_wait_for_meta(struct pblk *pblk)
+static void pblk_wait_for_meta(struct pblk *pblk)
 {
 	do {
 		if (!atomic_read(&pblk->inflight_io))
@@ -336,17 +370,6 @@ void pblk_discard(struct pblk *pblk, struct bio *bio)
 	pblk_invalidate_range(pblk, slba, nr_secs);
 }
 
-struct ppa_addr pblk_get_lba_map(struct pblk *pblk, sector_t lba)
-{
-	struct ppa_addr ppa;
-
-	spin_lock(&pblk->trans_lock);
-	ppa = pblk_trans_map_get(pblk, lba);
-	spin_unlock(&pblk->trans_lock);
-
-	return ppa;
-}
-
 void pblk_log_write_err(struct pblk *pblk, struct nvm_rq *rqd)
 {
 	atomic_long_inc(&pblk->write_failed);
@@ -389,39 +412,38 @@ int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd)
 	struct nvm_tgt_dev *dev = pblk->dev;
 
 #ifdef CONFIG_NVM_DEBUG
-	struct ppa_addr *ppa_list;
+	int ret;
 
-	ppa_list = (rqd->nr_ppas > 1) ? rqd->ppa_list : &rqd->ppa_addr;
-	if (pblk_boundary_ppa_checks(dev, ppa_list, rqd->nr_ppas)) {
-		WARN_ON(1);
-		return -EINVAL;
-	}
+	ret = pblk_check_io(pblk, rqd);
+	if (ret)
+		return ret;
+#endif
 
-	if (rqd->opcode == NVM_OP_PWRITE) {
-		struct pblk_line *line;
-		struct ppa_addr ppa;
-		int i;
+	atomic_inc(&pblk->inflight_io);
 
-		for (i = 0; i < rqd->nr_ppas; i++) {
-			ppa = ppa_list[i];
-			line = &pblk->lines[pblk_dev_ppa_to_line(ppa)];
+	return nvm_submit_io(dev, rqd);
+}
 
-			spin_lock(&line->lock);
-			if (line->state != PBLK_LINESTATE_OPEN) {
-				pr_err("pblk: bad ppa: line:%d,state:%d\n",
-							line->id, line->state);
-				WARN_ON(1);
-				spin_unlock(&line->lock);
-				return -EINVAL;
-			}
-			spin_unlock(&line->lock);
-		}
-	}
+int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd)
+{
+	struct nvm_tgt_dev *dev = pblk->dev;
+
+#ifdef CONFIG_NVM_DEBUG
+	int ret;
+
+	ret = pblk_check_io(pblk, rqd);
+	if (ret)
+		return ret;
 #endif
 
 	atomic_inc(&pblk->inflight_io);
 
-	return nvm_submit_io(dev, rqd);
+	return nvm_submit_io_sync(dev, rqd);
+}
+
+static void pblk_bio_map_addr_endio(struct bio *bio)
+{
+	bio_put(bio);
 }
 
 struct bio *pblk_bio_map_addr(struct pblk *pblk, void *data,
@@ -460,6 +482,8 @@ struct bio *pblk_bio_map_addr(struct pblk *pblk, void *data,
 
 		kaddr += PAGE_SIZE;
 	}
+
+	bio->bi_end_io = pblk_bio_map_addr_endio;
 out:
 	return bio;
 }
@@ -486,12 +510,14 @@ void pblk_dealloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs)
 	u64 addr;
 	int i;
 
+	spin_lock(&line->lock);
 	addr = find_next_zero_bit(line->map_bitmap,
 					pblk->lm.sec_per_line, line->cur_sec);
 	line->cur_sec = addr - nr_secs;
 
 	for (i = 0; i < nr_secs; i++, line->cur_sec--)
 		WARN_ON(!test_and_clear_bit(line->cur_sec, line->map_bitmap));
+	spin_unlock(&line->lock);
 }
 
 u64 __pblk_alloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs)
@@ -565,12 +591,11 @@ static int pblk_line_submit_emeta_io(struct pblk *pblk, struct pblk_line *line,
 	int cmd_op, bio_op;
 	int i, j;
 	int ret;
-	DECLARE_COMPLETION_ONSTACK(wait);
 
-	if (dir == WRITE) {
+	if (dir == PBLK_WRITE) {
 		bio_op = REQ_OP_WRITE;
 		cmd_op = NVM_OP_PWRITE;
-	} else if (dir == READ) {
+	} else if (dir == PBLK_READ) {
 		bio_op = REQ_OP_READ;
 		cmd_op = NVM_OP_PREAD;
 	} else
@@ -607,13 +632,11 @@ next_rq:
 	rqd.dma_ppa_list = dma_ppa_list;
 	rqd.opcode = cmd_op;
 	rqd.nr_ppas = rq_ppas;
-	rqd.end_io = pblk_end_io_sync;
-	rqd.private = &wait;
 
-	if (dir == WRITE) {
+	if (dir == PBLK_WRITE) {
 		struct pblk_sec_meta *meta_list = rqd.meta_list;
 
-		rqd.flags = pblk_set_progr_mode(pblk, WRITE);
+		rqd.flags = pblk_set_progr_mode(pblk, PBLK_WRITE);
 		for (i = 0; i < rqd.nr_ppas; ) {
 			spin_lock(&line->lock);
 			paddr = __pblk_alloc_page(pblk, line, min);
@@ -662,25 +685,17 @@ next_rq:
 		}
 	}
 
-	ret = pblk_submit_io(pblk, &rqd);
+	ret = pblk_submit_io_sync(pblk, &rqd);
 	if (ret) {
 		pr_err("pblk: emeta I/O submission failed: %d\n", ret);
 		bio_put(bio);
 		goto free_rqd_dma;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: emeta I/O timed out\n");
-	}
 	atomic_dec(&pblk->inflight_io);
-	reinit_completion(&wait);
-
-	if (likely(pblk->l_mg.emeta_alloc_type == PBLK_VMALLOC_META))
-		bio_put(bio);
 
 	if (rqd.error) {
-		if (dir == WRITE)
+		if (dir == PBLK_WRITE)
 			pblk_log_write_err(pblk, &rqd);
 		else
 			pblk_log_read_err(pblk, &rqd);
@@ -721,14 +736,13 @@ static int pblk_line_submit_smeta_io(struct pblk *pblk, struct pblk_line *line,
 	int i, ret;
 	int cmd_op, bio_op;
 	int flags;
-	DECLARE_COMPLETION_ONSTACK(wait);
 
-	if (dir == WRITE) {
+	if (dir == PBLK_WRITE) {
 		bio_op = REQ_OP_WRITE;
 		cmd_op = NVM_OP_PWRITE;
-		flags = pblk_set_progr_mode(pblk, WRITE);
+		flags = pblk_set_progr_mode(pblk, PBLK_WRITE);
 		lba_list = emeta_to_lbas(pblk, line->emeta->buf);
-	} else if (dir == READ) {
+	} else if (dir == PBLK_READ) {
 		bio_op = REQ_OP_READ;
 		cmd_op = NVM_OP_PREAD;
 		flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL);
@@ -758,15 +772,13 @@ static int pblk_line_submit_smeta_io(struct pblk *pblk, struct pblk_line *line,
 	rqd.opcode = cmd_op;
 	rqd.flags = flags;
 	rqd.nr_ppas = lm->smeta_sec;
-	rqd.end_io = pblk_end_io_sync;
-	rqd.private = &wait;
 
 	for (i = 0; i < lm->smeta_sec; i++, paddr++) {
 		struct pblk_sec_meta *meta_list = rqd.meta_list;
 
 		rqd.ppa_list[i] = addr_to_gen_ppa(pblk, paddr, line->id);
 
-		if (dir == WRITE) {
+		if (dir == PBLK_WRITE) {
 			__le64 addr_empty = cpu_to_le64(ADDR_EMPTY);
 
 			meta_list[i].lba = lba_list[paddr] = addr_empty;
@@ -778,21 +790,17 @@ static int pblk_line_submit_smeta_io(struct pblk *pblk, struct pblk_line *line,
 	 * the write thread is the only one sending write and erase commands,
 	 * there is no need to take the LUN semaphore.
 	 */
-	ret = pblk_submit_io(pblk, &rqd);
+	ret = pblk_submit_io_sync(pblk, &rqd);
 	if (ret) {
 		pr_err("pblk: smeta I/O submission failed: %d\n", ret);
 		bio_put(bio);
 		goto free_ppa_list;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: smeta I/O timed out\n");
-	}
 	atomic_dec(&pblk->inflight_io);
 
 	if (rqd.error) {
-		if (dir == WRITE)
+		if (dir == PBLK_WRITE)
 			pblk_log_write_err(pblk, &rqd);
 		else
 			pblk_log_read_err(pblk, &rqd);
@@ -808,14 +816,14 @@ int pblk_line_read_smeta(struct pblk *pblk, struct pblk_line *line)
 {
 	u64 bpaddr = pblk_line_smeta_start(pblk, line);
 
-	return pblk_line_submit_smeta_io(pblk, line, bpaddr, READ);
+	return pblk_line_submit_smeta_io(pblk, line, bpaddr, PBLK_READ);
 }
 
 int pblk_line_read_emeta(struct pblk *pblk, struct pblk_line *line,
 			 void *emeta_buf)
 {
 	return pblk_line_submit_emeta_io(pblk, line, emeta_buf,
-						line->emeta_ssec, READ);
+						line->emeta_ssec, PBLK_READ);
 }
 
 static void pblk_setup_e_rq(struct pblk *pblk, struct nvm_rq *rqd,
@@ -824,7 +832,7 @@ static void pblk_setup_e_rq(struct pblk *pblk, struct nvm_rq *rqd,
 	rqd->opcode = NVM_OP_ERASE;
 	rqd->ppa_addr = ppa;
 	rqd->nr_ppas = 1;
-	rqd->flags = pblk_set_progr_mode(pblk, ERASE);
+	rqd->flags = pblk_set_progr_mode(pblk, PBLK_ERASE);
 	rqd->bio = NULL;
 }
 
@@ -832,19 +840,15 @@ static int pblk_blk_erase_sync(struct pblk *pblk, struct ppa_addr ppa)
 {
 	struct nvm_rq rqd;
 	int ret = 0;
-	DECLARE_COMPLETION_ONSTACK(wait);
 
 	memset(&rqd, 0, sizeof(struct nvm_rq));
 
 	pblk_setup_e_rq(pblk, &rqd, ppa);
 
-	rqd.end_io = pblk_end_io_sync;
-	rqd.private = &wait;
-
 	/* The write thread schedules erases so that it minimizes disturbances
 	 * with writes. Thus, there is no need to take the LUN semaphore.
 	 */
-	ret = pblk_submit_io(pblk, &rqd);
+	ret = pblk_submit_io_sync(pblk, &rqd);
 	if (ret) {
 		struct nvm_tgt_dev *dev = pblk->dev;
 		struct nvm_geo *geo = &dev->geo;
@@ -857,11 +861,6 @@ static int pblk_blk_erase_sync(struct pblk *pblk, struct ppa_addr ppa)
 		goto out;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: sync erase timed out\n");
-	}
-
 out:
 	rqd.private = pblk;
 	__pblk_end_io_erase(pblk, &rqd);
@@ -976,7 +975,7 @@ static int pblk_line_init_metadata(struct pblk *pblk, struct pblk_line *line,
 	memcpy(smeta_buf->header.uuid, pblk->instance_uuid, 16);
 	smeta_buf->header.id = cpu_to_le32(line->id);
 	smeta_buf->header.type = cpu_to_le16(line->type);
-	smeta_buf->header.version = cpu_to_le16(1);
+	smeta_buf->header.version = SMETA_VERSION;
 
 	/* Start metadata */
 	smeta_buf->seq_nr = cpu_to_le64(line->seq_nr);
@@ -1046,7 +1045,7 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line,
 	line->smeta_ssec = off;
 	line->cur_sec = off + lm->smeta_sec;
 
-	if (init && pblk_line_submit_smeta_io(pblk, line, off, WRITE)) {
+	if (init && pblk_line_submit_smeta_io(pblk, line, off, PBLK_WRITE)) {
 		pr_debug("pblk: line smeta I/O failed. Retry\n");
 		return 1;
 	}
@@ -1056,7 +1055,6 @@ static int pblk_line_init_bb(struct pblk *pblk, struct pblk_line *line,
 	/* Mark emeta metadata sectors as bad sectors. We need to consider bad
 	 * blocks to make sure that there are enough sectors to store emeta
 	 */
-	bit = lm->sec_per_line;
 	off = lm->sec_per_line - lm->emeta_sec[0];
 	bitmap_set(line->invalid_bitmap, off, lm->emeta_sec[0]);
 	while (nr_bb) {
@@ -1093,25 +1091,21 @@ static int pblk_line_prepare(struct pblk *pblk, struct pblk_line *line)
 	struct pblk_line_meta *lm = &pblk->lm;
 	int blk_in_line = atomic_read(&line->blk_in_line);
 
-	line->map_bitmap = mempool_alloc(pblk->line_meta_pool, GFP_ATOMIC);
+	line->map_bitmap = kzalloc(lm->sec_bitmap_len, GFP_ATOMIC);
 	if (!line->map_bitmap)
 		return -ENOMEM;
-	memset(line->map_bitmap, 0, lm->sec_bitmap_len);
 
-	/* invalid_bitmap is special since it is used when line is closed. No
-	 * need to zeroized; it will be initialized using bb info form
-	 * map_bitmap
-	 */
-	line->invalid_bitmap = mempool_alloc(pblk->line_meta_pool, GFP_ATOMIC);
+	/* will be initialized using bb info from map_bitmap */
+	line->invalid_bitmap = kmalloc(lm->sec_bitmap_len, GFP_ATOMIC);
 	if (!line->invalid_bitmap) {
-		mempool_free(line->map_bitmap, pblk->line_meta_pool);
+		kfree(line->map_bitmap);
 		return -ENOMEM;
 	}
 
 	spin_lock(&line->lock);
 	if (line->state != PBLK_LINESTATE_FREE) {
-		mempool_free(line->invalid_bitmap, pblk->line_meta_pool);
-		mempool_free(line->map_bitmap, pblk->line_meta_pool);
+		kfree(line->map_bitmap);
+		kfree(line->invalid_bitmap);
 		spin_unlock(&line->lock);
 		WARN(1, "pblk: corrupted line %d, state %d\n",
 							line->id, line->state);
@@ -1163,7 +1157,7 @@ int pblk_line_recov_alloc(struct pblk *pblk, struct pblk_line *line)
 
 void pblk_line_recov_close(struct pblk *pblk, struct pblk_line *line)
 {
-	mempool_free(line->map_bitmap, pblk->line_meta_pool);
+	kfree(line->map_bitmap);
 	line->map_bitmap = NULL;
 	line->smeta = NULL;
 	line->emeta = NULL;
@@ -1328,6 +1322,41 @@ static void pblk_stop_writes(struct pblk *pblk, struct pblk_line *line)
 	pblk->state = PBLK_STATE_STOPPING;
 }
 
+static void pblk_line_close_meta_sync(struct pblk *pblk)
+{
+	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
+	struct pblk_line_meta *lm = &pblk->lm;
+	struct pblk_line *line, *tline;
+	LIST_HEAD(list);
+
+	spin_lock(&l_mg->close_lock);
+	if (list_empty(&l_mg->emeta_list)) {
+		spin_unlock(&l_mg->close_lock);
+		return;
+	}
+
+	list_cut_position(&list, &l_mg->emeta_list, l_mg->emeta_list.prev);
+	spin_unlock(&l_mg->close_lock);
+
+	list_for_each_entry_safe(line, tline, &list, list) {
+		struct pblk_emeta *emeta = line->emeta;
+
+		while (emeta->mem < lm->emeta_len[0]) {
+			int ret;
+
+			ret = pblk_submit_meta_io(pblk, line);
+			if (ret) {
+				pr_err("pblk: sync meta line %d failed (%d)\n",
+							line->id, ret);
+				return;
+			}
+		}
+	}
+
+	pblk_wait_for_meta(pblk);
+	flush_workqueue(pblk->close_wq);
+}
+
 void pblk_pipeline_stop(struct pblk *pblk)
 {
 	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
@@ -1361,17 +1390,17 @@ void pblk_pipeline_stop(struct pblk *pblk)
 	spin_unlock(&l_mg->free_lock);
 }
 
-void pblk_line_replace_data(struct pblk *pblk)
+struct pblk_line *pblk_line_replace_data(struct pblk *pblk)
 {
 	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
-	struct pblk_line *cur, *new;
+	struct pblk_line *cur, *new = NULL;
 	unsigned int left_seblks;
 	int is_next = 0;
 
 	cur = l_mg->data_line;
 	new = l_mg->data_next;
 	if (!new)
-		return;
+		goto out;
 	l_mg->data_line = new;
 
 	spin_lock(&l_mg->free_lock);
@@ -1379,7 +1408,7 @@ void pblk_line_replace_data(struct pblk *pblk)
 		l_mg->data_line = NULL;
 		l_mg->data_next = NULL;
 		spin_unlock(&l_mg->free_lock);
-		return;
+		goto out;
 	}
 
 	pblk_line_setup_metadata(new, l_mg, &pblk->lm);
@@ -1391,7 +1420,7 @@ retry_erase:
 		/* If line is not fully erased, erase it */
 		if (atomic_read(&new->left_eblks)) {
 			if (pblk_line_erase(pblk, new))
-				return;
+				goto out;
 		} else {
 			io_schedule();
 		}
@@ -1402,7 +1431,7 @@ retry_setup:
 	if (!pblk_line_init_metadata(pblk, new, cur)) {
 		new = pblk_line_retry(pblk, new);
 		if (!new)
-			return;
+			goto out;
 
 		goto retry_setup;
 	}
@@ -1410,7 +1439,7 @@ retry_setup:
 	if (!pblk_line_init_bb(pblk, new, 1)) {
 		new = pblk_line_retry(pblk, new);
 		if (!new)
-			return;
+			goto out;
 
 		goto retry_setup;
 	}
@@ -1434,14 +1463,15 @@ retry_setup:
 
 	if (is_next)
 		pblk_rl_free_lines_dec(&pblk->rl, l_mg->data_next);
+
+out:
+	return new;
 }
 
 void pblk_line_free(struct pblk *pblk, struct pblk_line *line)
 {
-	if (line->map_bitmap)
-		mempool_free(line->map_bitmap, pblk->line_meta_pool);
-	if (line->invalid_bitmap)
-		mempool_free(line->invalid_bitmap, pblk->line_meta_pool);
+	kfree(line->map_bitmap);
+	kfree(line->invalid_bitmap);
 
 	*line->vsc = cpu_to_le32(EMPTY_ENTRY);
 
@@ -1451,11 +1481,10 @@ void pblk_line_free(struct pblk *pblk, struct pblk_line *line)
 	line->emeta = NULL;
 }
 
-void pblk_line_put(struct kref *ref)
+static void __pblk_line_put(struct pblk *pblk, struct pblk_line *line)
 {
-	struct pblk_line *line = container_of(ref, struct pblk_line, ref);
-	struct pblk *pblk = line->pblk;
 	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
+	struct pblk_gc *gc = &pblk->gc;
 
 	spin_lock(&line->lock);
 	WARN_ON(line->state != PBLK_LINESTATE_GC);
@@ -1464,6 +1493,8 @@ void pblk_line_put(struct kref *ref)
 	pblk_line_free(pblk, line);
 	spin_unlock(&line->lock);
 
+	atomic_dec(&gc->pipeline_gc);
+
 	spin_lock(&l_mg->free_lock);
 	list_add_tail(&line->list, &l_mg->free_list);
 	l_mg->nr_free_lines++;
@@ -1472,13 +1503,49 @@ void pblk_line_put(struct kref *ref)
 	pblk_rl_free_lines_inc(&pblk->rl, line);
 }
 
+static void pblk_line_put_ws(struct work_struct *work)
+{
+	struct pblk_line_ws *line_put_ws = container_of(work,
+						struct pblk_line_ws, ws);
+	struct pblk *pblk = line_put_ws->pblk;
+	struct pblk_line *line = line_put_ws->line;
+
+	__pblk_line_put(pblk, line);
+	mempool_free(line_put_ws, pblk->gen_ws_pool);
+}
+
+void pblk_line_put(struct kref *ref)
+{
+	struct pblk_line *line = container_of(ref, struct pblk_line, ref);
+	struct pblk *pblk = line->pblk;
+
+	__pblk_line_put(pblk, line);
+}
+
+void pblk_line_put_wq(struct kref *ref)
+{
+	struct pblk_line *line = container_of(ref, struct pblk_line, ref);
+	struct pblk *pblk = line->pblk;
+	struct pblk_line_ws *line_put_ws;
+
+	line_put_ws = mempool_alloc(pblk->gen_ws_pool, GFP_ATOMIC);
+	if (!line_put_ws)
+		return;
+
+	line_put_ws->pblk = pblk;
+	line_put_ws->line = line;
+	line_put_ws->priv = NULL;
+
+	INIT_WORK(&line_put_ws->ws, pblk_line_put_ws);
+	queue_work(pblk->r_end_wq, &line_put_ws->ws);
+}
+
 int pblk_blk_erase_async(struct pblk *pblk, struct ppa_addr ppa)
 {
 	struct nvm_rq *rqd;
 	int err;
 
-	rqd = mempool_alloc(pblk->g_rq_pool, GFP_KERNEL);
-	memset(rqd, 0, pblk_g_rq_size);
+	rqd = pblk_alloc_rqd(pblk, PBLK_ERASE);
 
 	pblk_setup_e_rq(pblk, rqd, ppa);
 
@@ -1517,41 +1584,6 @@ int pblk_line_is_full(struct pblk_line *line)
 	return (line->left_msecs == 0);
 }
 
-void pblk_line_close_meta_sync(struct pblk *pblk)
-{
-	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
-	struct pblk_line_meta *lm = &pblk->lm;
-	struct pblk_line *line, *tline;
-	LIST_HEAD(list);
-
-	spin_lock(&l_mg->close_lock);
-	if (list_empty(&l_mg->emeta_list)) {
-		spin_unlock(&l_mg->close_lock);
-		return;
-	}
-
-	list_cut_position(&list, &l_mg->emeta_list, l_mg->emeta_list.prev);
-	spin_unlock(&l_mg->close_lock);
-
-	list_for_each_entry_safe(line, tline, &list, list) {
-		struct pblk_emeta *emeta = line->emeta;
-
-		while (emeta->mem < lm->emeta_len[0]) {
-			int ret;
-
-			ret = pblk_submit_meta_io(pblk, line);
-			if (ret) {
-				pr_err("pblk: sync meta line %d failed (%d)\n",
-							line->id, ret);
-				return;
-			}
-		}
-	}
-
-	pblk_wait_for_meta(pblk);
-	flush_workqueue(pblk->close_wq);
-}
-
 static void pblk_line_should_sync_meta(struct pblk *pblk)
 {
 	if (pblk_rl_is_limit(&pblk->rl))
@@ -1582,15 +1614,13 @@ void pblk_line_close(struct pblk *pblk, struct pblk_line *line)
 
 	list_add_tail(&line->list, move_list);
 
-	mempool_free(line->map_bitmap, pblk->line_meta_pool);
+	kfree(line->map_bitmap);
 	line->map_bitmap = NULL;
 	line->smeta = NULL;
 	line->emeta = NULL;
 
 	spin_unlock(&line->lock);
 	spin_unlock(&l_mg->gc_lock);
-
-	pblk_gc_should_kick(pblk);
 }
 
 void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line)
@@ -1624,43 +1654,16 @@ void pblk_line_close_ws(struct work_struct *work)
 	struct pblk_line *line = line_ws->line;
 
 	pblk_line_close(pblk, line);
-	mempool_free(line_ws, pblk->line_ws_pool);
-}
-
-void pblk_line_mark_bb(struct work_struct *work)
-{
-	struct pblk_line_ws *line_ws = container_of(work, struct pblk_line_ws,
-									ws);
-	struct pblk *pblk = line_ws->pblk;
-	struct nvm_tgt_dev *dev = pblk->dev;
-	struct ppa_addr *ppa = line_ws->priv;
-	int ret;
-
-	ret = nvm_set_tgt_bb_tbl(dev, ppa, 1, NVM_BLK_T_GRWN_BAD);
-	if (ret) {
-		struct pblk_line *line;
-		int pos;
-
-		line = &pblk->lines[pblk_dev_ppa_to_line(*ppa)];
-		pos = pblk_dev_ppa_to_pos(&dev->geo, *ppa);
-
-		pr_err("pblk: failed to mark bb, line:%d, pos:%d\n",
-				line->id, pos);
-	}
-
-	kfree(ppa);
-	mempool_free(line_ws, pblk->line_ws_pool);
+	mempool_free(line_ws, pblk->gen_ws_pool);
 }
 
-void pblk_line_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv,
-		      void (*work)(struct work_struct *),
+void pblk_gen_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv,
+		      void (*work)(struct work_struct *), gfp_t gfp_mask,
 		      struct workqueue_struct *wq)
 {
 	struct pblk_line_ws *line_ws;
 
-	line_ws = mempool_alloc(pblk->line_ws_pool, GFP_ATOMIC);
-	if (!line_ws)
-		return;
+	line_ws = mempool_alloc(pblk->gen_ws_pool, gfp_mask);
 
 	line_ws->pblk = pblk;
 	line_ws->line = line;
@@ -1689,16 +1692,8 @@ static void __pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list,
 #endif
 
 	ret = down_timeout(&rlun->wr_sem, msecs_to_jiffies(30000));
-	if (ret) {
-		switch (ret) {
-		case -ETIME:
-			pr_err("pblk: lun semaphore timed out\n");
-			break;
-		case -EINTR:
-			pr_err("pblk: lun semaphore timed out\n");
-			break;
-		}
-	}
+	if (ret == -ETIME || ret == -EINTR)
+		pr_err("pblk: taking lun semaphore timed out: err %d\n", -ret);
 }
 
 void pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas)
@@ -1758,13 +1753,11 @@ void pblk_up_rq(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas,
 		rlun = &pblk->luns[bit];
 		up(&rlun->wr_sem);
 	}
-
-	kfree(lun_bitmap);
 }
 
 void pblk_update_map(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
 {
-	struct ppa_addr l2p_ppa;
+	struct ppa_addr ppa_l2p;
 
 	/* logic error: lba out-of-bounds. Ignore update */
 	if (!(lba < pblk->rl.nr_secs)) {
@@ -1773,10 +1766,10 @@ void pblk_update_map(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
 	}
 
 	spin_lock(&pblk->trans_lock);
-	l2p_ppa = pblk_trans_map_get(pblk, lba);
+	ppa_l2p = pblk_trans_map_get(pblk, lba);
 
-	if (!pblk_addr_in_cache(l2p_ppa) && !pblk_ppa_empty(l2p_ppa))
-		pblk_map_invalidate(pblk, l2p_ppa);
+	if (!pblk_addr_in_cache(ppa_l2p) && !pblk_ppa_empty(ppa_l2p))
+		pblk_map_invalidate(pblk, ppa_l2p);
 
 	pblk_trans_map_set(pblk, lba, ppa);
 	spin_unlock(&pblk->trans_lock);
@@ -1784,6 +1777,7 @@ void pblk_update_map(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
 
 void pblk_update_map_cache(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
 {
+
 #ifdef CONFIG_NVM_DEBUG
 	/* Callers must ensure that the ppa points to a cache address */
 	BUG_ON(!pblk_addr_in_cache(ppa));
@@ -1793,16 +1787,16 @@ void pblk_update_map_cache(struct pblk *pblk, sector_t lba, struct ppa_addr ppa)
 	pblk_update_map(pblk, lba, ppa);
 }
 
-int pblk_update_map_gc(struct pblk *pblk, sector_t lba, struct ppa_addr ppa,
-		       struct pblk_line *gc_line)
+int pblk_update_map_gc(struct pblk *pblk, sector_t lba, struct ppa_addr ppa_new,
+		       struct pblk_line *gc_line, u64 paddr_gc)
 {
-	struct ppa_addr l2p_ppa;
+	struct ppa_addr ppa_l2p, ppa_gc;
 	int ret = 1;
 
 #ifdef CONFIG_NVM_DEBUG
 	/* Callers must ensure that the ppa points to a cache address */
-	BUG_ON(!pblk_addr_in_cache(ppa));
-	BUG_ON(pblk_rb_pos_oob(&pblk->rwb, pblk_addr_to_cacheline(ppa)));
+	BUG_ON(!pblk_addr_in_cache(ppa_new));
+	BUG_ON(pblk_rb_pos_oob(&pblk->rwb, pblk_addr_to_cacheline(ppa_new)));
 #endif
 
 	/* logic error: lba out-of-bounds. Ignore update */
@@ -1812,36 +1806,41 @@ int pblk_update_map_gc(struct pblk *pblk, sector_t lba, struct ppa_addr ppa,
 	}
 
 	spin_lock(&pblk->trans_lock);
-	l2p_ppa = pblk_trans_map_get(pblk, lba);
+	ppa_l2p = pblk_trans_map_get(pblk, lba);
+	ppa_gc = addr_to_gen_ppa(pblk, paddr_gc, gc_line->id);
+
+	if (!pblk_ppa_comp(ppa_l2p, ppa_gc)) {
+		spin_lock(&gc_line->lock);
+		WARN(!test_bit(paddr_gc, gc_line->invalid_bitmap),
+						"pblk: corrupted GC update");
+		spin_unlock(&gc_line->lock);
 
-	/* Prevent updated entries to be overwritten by GC */
-	if (pblk_addr_in_cache(l2p_ppa) || pblk_ppa_empty(l2p_ppa) ||
-				pblk_tgt_ppa_to_line(l2p_ppa) != gc_line->id) {
 		ret = 0;
 		goto out;
 	}
 
-	pblk_trans_map_set(pblk, lba, ppa);
+	pblk_trans_map_set(pblk, lba, ppa_new);
 out:
 	spin_unlock(&pblk->trans_lock);
 	return ret;
 }
 
-void pblk_update_map_dev(struct pblk *pblk, sector_t lba, struct ppa_addr ppa,
-			 struct ppa_addr entry_line)
+void pblk_update_map_dev(struct pblk *pblk, sector_t lba,
+			 struct ppa_addr ppa_mapped, struct ppa_addr ppa_cache)
 {
-	struct ppa_addr l2p_line;
+	struct ppa_addr ppa_l2p;
 
 #ifdef CONFIG_NVM_DEBUG
 	/* Callers must ensure that the ppa points to a device address */
-	BUG_ON(pblk_addr_in_cache(ppa));
+	BUG_ON(pblk_addr_in_cache(ppa_mapped));
 #endif
 	/* Invalidate and discard padded entries */
 	if (lba == ADDR_EMPTY) {
 #ifdef CONFIG_NVM_DEBUG
 		atomic_long_inc(&pblk->padded_wb);
 #endif
-		pblk_map_invalidate(pblk, ppa);
+		if (!pblk_ppa_empty(ppa_mapped))
+			pblk_map_invalidate(pblk, ppa_mapped);
 		return;
 	}
 
@@ -1852,22 +1851,22 @@ void pblk_update_map_dev(struct pblk *pblk, sector_t lba, struct ppa_addr ppa,
 	}
 
 	spin_lock(&pblk->trans_lock);
-	l2p_line = pblk_trans_map_get(pblk, lba);
+	ppa_l2p = pblk_trans_map_get(pblk, lba);
 
 	/* Do not update L2P if the cacheline has been updated. In this case,
 	 * the mapped ppa must be invalidated
 	 */
-	if (l2p_line.ppa != entry_line.ppa) {
-		if (!pblk_ppa_empty(ppa))
-			pblk_map_invalidate(pblk, ppa);
+	if (!pblk_ppa_comp(ppa_l2p, ppa_cache)) {
+		if (!pblk_ppa_empty(ppa_mapped))
+			pblk_map_invalidate(pblk, ppa_mapped);
 		goto out;
 	}
 
 #ifdef CONFIG_NVM_DEBUG
-	WARN_ON(!pblk_addr_in_cache(l2p_line) && !pblk_ppa_empty(l2p_line));
+	WARN_ON(!pblk_addr_in_cache(ppa_l2p) && !pblk_ppa_empty(ppa_l2p));
 #endif
 
-	pblk_trans_map_set(pblk, lba, ppa);
+	pblk_trans_map_set(pblk, lba, ppa_mapped);
 out:
 	spin_unlock(&pblk->trans_lock);
 }
@@ -1878,23 +1877,32 @@ void pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas,
 	int i;
 
 	spin_lock(&pblk->trans_lock);
-	for (i = 0; i < nr_secs; i++)
-		ppas[i] = pblk_trans_map_get(pblk, blba + i);
+	for (i = 0; i < nr_secs; i++) {
+		struct ppa_addr ppa;
+
+		ppa = ppas[i] = pblk_trans_map_get(pblk, blba + i);
+
+		/* If the L2P entry maps to a line, the reference is valid */
+		if (!pblk_ppa_empty(ppa) && !pblk_addr_in_cache(ppa)) {
+			int line_id = pblk_dev_ppa_to_line(ppa);
+			struct pblk_line *line = &pblk->lines[line_id];
+
+			kref_get(&line->ref);
+		}
+	}
 	spin_unlock(&pblk->trans_lock);
 }
 
 void pblk_lookup_l2p_rand(struct pblk *pblk, struct ppa_addr *ppas,
 			  u64 *lba_list, int nr_secs)
 {
-	sector_t lba;
+	u64 lba;
 	int i;
 
 	spin_lock(&pblk->trans_lock);
 	for (i = 0; i < nr_secs; i++) {
 		lba = lba_list[i];
-		if (lba == ADDR_EMPTY) {
-			ppas[i].ppa = ADDR_EMPTY;
-		} else {
+		if (lba != ADDR_EMPTY) {
 			/* logic error: lba out-of-bounds. Ignore update */
 			if (!(lba < pblk->rl.nr_secs)) {
 				WARN(1, "pblk: corrupted L2P map request\n");
diff --git a/drivers/lightnvm/pblk-gc.c b/drivers/lightnvm/pblk-gc.c
index 6090d28f7995..00d5698d64a9 100644
--- a/drivers/lightnvm/pblk-gc.c
+++ b/drivers/lightnvm/pblk-gc.c
@@ -20,7 +20,8 @@
 
 static void pblk_gc_free_gc_rq(struct pblk_gc_rq *gc_rq)
 {
-	vfree(gc_rq->data);
+	if (gc_rq->data)
+		vfree(gc_rq->data);
 	kfree(gc_rq);
 }
 
@@ -41,10 +42,7 @@ static int pblk_gc_write(struct pblk *pblk)
 	spin_unlock(&gc->w_lock);
 
 	list_for_each_entry_safe(gc_rq, tgc_rq, &w_list, list) {
-		pblk_write_gc_to_cache(pblk, gc_rq->data, gc_rq->lba_list,
-				gc_rq->nr_secs, gc_rq->secs_to_gc,
-				gc_rq->line, PBLK_IOTYPE_GC);
-
+		pblk_write_gc_to_cache(pblk, gc_rq);
 		list_del(&gc_rq->list);
 		kref_put(&gc_rq->line->ref, pblk_line_put);
 		pblk_gc_free_gc_rq(gc_rq);
@@ -58,42 +56,59 @@ static void pblk_gc_writer_kick(struct pblk_gc *gc)
 	wake_up_process(gc->gc_writer_ts);
 }
 
-/*
- * Responsible for managing all memory related to a gc request. Also in case of
- * failure
- */
-static int pblk_gc_move_valid_secs(struct pblk *pblk, struct pblk_gc_rq *gc_rq)
+static void pblk_put_line_back(struct pblk *pblk, struct pblk_line *line)
+{
+	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
+	struct list_head *move_list;
+
+	spin_lock(&line->lock);
+	WARN_ON(line->state != PBLK_LINESTATE_GC);
+	line->state = PBLK_LINESTATE_CLOSED;
+	move_list = pblk_line_gc_list(pblk, line);
+	spin_unlock(&line->lock);
+
+	if (move_list) {
+		spin_lock(&l_mg->gc_lock);
+		list_add_tail(&line->list, move_list);
+		spin_unlock(&l_mg->gc_lock);
+	}
+}
+
+static void pblk_gc_line_ws(struct work_struct *work)
 {
+	struct pblk_line_ws *gc_rq_ws = container_of(work,
+						struct pblk_line_ws, ws);
+	struct pblk *pblk = gc_rq_ws->pblk;
 	struct nvm_tgt_dev *dev = pblk->dev;
 	struct nvm_geo *geo = &dev->geo;
 	struct pblk_gc *gc = &pblk->gc;
-	struct pblk_line *line = gc_rq->line;
-	void *data;
-	unsigned int secs_to_gc;
-	int ret = 0;
+	struct pblk_line *line = gc_rq_ws->line;
+	struct pblk_gc_rq *gc_rq = gc_rq_ws->priv;
+	int ret;
 
-	data = vmalloc(gc_rq->nr_secs * geo->sec_size);
-	if (!data) {
-		ret = -ENOMEM;
+	up(&gc->gc_sem);
+
+	gc_rq->data = vmalloc(gc_rq->nr_secs * geo->sec_size);
+	if (!gc_rq->data) {
+		pr_err("pblk: could not GC line:%d (%d/%d)\n",
+					line->id, *line->vsc, gc_rq->nr_secs);
 		goto out;
 	}
 
 	/* Read from GC victim block */
-	if (pblk_submit_read_gc(pblk, gc_rq->lba_list, data, gc_rq->nr_secs,
-							&secs_to_gc, line)) {
-		ret = -EFAULT;
-		goto free_data;
+	ret = pblk_submit_read_gc(pblk, gc_rq);
+	if (ret) {
+		pr_err("pblk: failed GC read in line:%d (err:%d)\n",
+								line->id, ret);
+		goto out;
 	}
 
-	if (!secs_to_gc)
-		goto free_rq;
-
-	gc_rq->data = data;
-	gc_rq->secs_to_gc = secs_to_gc;
+	if (!gc_rq->secs_to_gc)
+		goto out;
 
 retry:
 	spin_lock(&gc->w_lock);
-	if (gc->w_entries >= PBLK_GC_W_QD) {
+	if (gc->w_entries >= PBLK_GC_RQ_QD) {
 		spin_unlock(&gc->w_lock);
 		pblk_gc_writer_kick(&pblk->gc);
 		usleep_range(128, 256);
@@ -105,53 +120,13 @@ retry:
 
 	pblk_gc_writer_kick(&pblk->gc);
 
-	return 0;
+	kfree(gc_rq_ws);
+	return;
 
-free_rq:
-	kfree(gc_rq);
-free_data:
-	vfree(data);
 out:
+	pblk_gc_free_gc_rq(gc_rq);
 	kref_put(&line->ref, pblk_line_put);
-	return ret;
-}
-
-static void pblk_put_line_back(struct pblk *pblk, struct pblk_line *line)
-{
-	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
-	struct list_head *move_list;
-
-	spin_lock(&line->lock);
-	WARN_ON(line->state != PBLK_LINESTATE_GC);
-	line->state = PBLK_LINESTATE_CLOSED;
-	move_list = pblk_line_gc_list(pblk, line);
-	spin_unlock(&line->lock);
-
-	if (move_list) {
-		spin_lock(&l_mg->gc_lock);
-		list_add_tail(&line->list, move_list);
-		spin_unlock(&l_mg->gc_lock);
-	}
-}
-
-static void pblk_gc_line_ws(struct work_struct *work)
-{
-	struct pblk_line_ws *line_rq_ws = container_of(work,
-						struct pblk_line_ws, ws);
-	struct pblk *pblk = line_rq_ws->pblk;
-	struct pblk_gc *gc = &pblk->gc;
-	struct pblk_line *line = line_rq_ws->line;
-	struct pblk_gc_rq *gc_rq = line_rq_ws->priv;
-
-	up(&gc->gc_sem);
-
-	if (pblk_gc_move_valid_secs(pblk, gc_rq)) {
-		pr_err("pblk: could not GC all sectors: line:%d (%d/%d)\n",
-						line->id, *line->vsc,
-						gc_rq->nr_secs);
-	}
-
-	mempool_free(line_rq_ws, pblk->line_ws_pool);
+	kfree(gc_rq_ws);
 }
 
 static void pblk_gc_line_prepare_ws(struct work_struct *work)
@@ -164,17 +139,24 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work)
 	struct pblk_line_meta *lm = &pblk->lm;
 	struct pblk_gc *gc = &pblk->gc;
 	struct line_emeta *emeta_buf;
-	struct pblk_line_ws *line_rq_ws;
+	struct pblk_line_ws *gc_rq_ws;
 	struct pblk_gc_rq *gc_rq;
 	__le64 *lba_list;
+	unsigned long *invalid_bitmap;
 	int sec_left, nr_secs, bit;
 	int ret;
 
+	invalid_bitmap = kmalloc(lm->sec_bitmap_len, GFP_KERNEL);
+	if (!invalid_bitmap) {
+		pr_err("pblk: could not allocate GC invalid bitmap\n");
+		goto fail_free_ws;
+	}
+
 	emeta_buf = pblk_malloc(lm->emeta_len[0], l_mg->emeta_alloc_type,
 								GFP_KERNEL);
 	if (!emeta_buf) {
 		pr_err("pblk: cannot use GC emeta\n");
-		return;
+		goto fail_free_bitmap;
 	}
 
 	ret = pblk_line_read_emeta(pblk, line, emeta_buf);
@@ -193,7 +175,11 @@ static void pblk_gc_line_prepare_ws(struct work_struct *work)
 		goto fail_free_emeta;
 	}
 
+	spin_lock(&line->lock);
+	bitmap_copy(invalid_bitmap, line->invalid_bitmap, lm->sec_per_line);
 	sec_left = pblk_line_vsc(line);
+	spin_unlock(&line->lock);
+
 	if (sec_left < 0) {
 		pr_err("pblk: corrupted GC line (%d)\n", line->id);
 		goto fail_free_emeta;
@@ -207,11 +193,12 @@ next_rq:
 
 	nr_secs = 0;
 	do {
-		bit = find_next_zero_bit(line->invalid_bitmap, lm->sec_per_line,
+		bit = find_next_zero_bit(invalid_bitmap, lm->sec_per_line,
 								bit + 1);
 		if (bit > line->emeta_ssec)
 			break;
 
+		gc_rq->paddr_list[nr_secs] = bit;
 		gc_rq->lba_list[nr_secs++] = le64_to_cpu(lba_list[bit]);
 	} while (nr_secs < pblk->max_write_pgs);
 
@@ -223,19 +210,25 @@ next_rq:
 	gc_rq->nr_secs = nr_secs;
 	gc_rq->line = line;
 
-	line_rq_ws = mempool_alloc(pblk->line_ws_pool, GFP_KERNEL);
-	if (!line_rq_ws)
+	gc_rq_ws = kmalloc(sizeof(struct pblk_line_ws), GFP_KERNEL);
+	if (!gc_rq_ws)
 		goto fail_free_gc_rq;
 
-	line_rq_ws->pblk = pblk;
-	line_rq_ws->line = line;
-	line_rq_ws->priv = gc_rq;
+	gc_rq_ws->pblk = pblk;
+	gc_rq_ws->line = line;
+	gc_rq_ws->priv = gc_rq;
+
+	/* The write GC path can be much slower than the read GC one due to
+	 * the budget imposed by the rate-limiter. Balance in case that we get
+	 * back pressure from the write GC path.
+	 */
+	while (down_timeout(&gc->gc_sem, msecs_to_jiffies(30000)))
+		io_schedule();
 
-	down(&gc->gc_sem);
 	kref_get(&line->ref);
 
-	INIT_WORK(&line_rq_ws->ws, pblk_gc_line_ws);
-	queue_work(gc->gc_line_reader_wq, &line_rq_ws->ws);
+	INIT_WORK(&gc_rq_ws->ws, pblk_gc_line_ws);
+	queue_work(gc->gc_line_reader_wq, &gc_rq_ws->ws);
 
 	sec_left -= nr_secs;
 	if (sec_left > 0)
@@ -243,10 +236,11 @@ next_rq:
 
 out:
 	pblk_mfree(emeta_buf, l_mg->emeta_alloc_type);
-	mempool_free(line_ws, pblk->line_ws_pool);
+	kfree(line_ws);
+	kfree(invalid_bitmap);
 
 	kref_put(&line->ref, pblk_line_put);
-	atomic_dec(&gc->inflight_gc);
+	atomic_dec(&gc->read_inflight_gc);
 
 	return;
 
@@ -254,10 +248,14 @@ fail_free_gc_rq:
 	kfree(gc_rq);
 fail_free_emeta:
 	pblk_mfree(emeta_buf, l_mg->emeta_alloc_type);
+fail_free_bitmap:
+	kfree(invalid_bitmap);
+fail_free_ws:
+	kfree(line_ws);
+
 	pblk_put_line_back(pblk, line);
 	kref_put(&line->ref, pblk_line_put);
-	mempool_free(line_ws, pblk->line_ws_pool);
-	atomic_dec(&gc->inflight_gc);
+	atomic_dec(&gc->read_inflight_gc);
 
 	pr_err("pblk: Failed to GC line %d\n", line->id);
 }
@@ -269,19 +267,40 @@ static int pblk_gc_line(struct pblk *pblk, struct pblk_line *line)
 
 	pr_debug("pblk: line '%d' being reclaimed for GC\n", line->id);
 
-	line_ws = mempool_alloc(pblk->line_ws_pool, GFP_KERNEL);
+	line_ws = kmalloc(sizeof(struct pblk_line_ws), GFP_KERNEL);
 	if (!line_ws)
 		return -ENOMEM;
 
 	line_ws->pblk = pblk;
 	line_ws->line = line;
 
+	atomic_inc(&gc->pipeline_gc);
 	INIT_WORK(&line_ws->ws, pblk_gc_line_prepare_ws);
 	queue_work(gc->gc_reader_wq, &line_ws->ws);
 
 	return 0;
 }
 
+static void pblk_gc_reader_kick(struct pblk_gc *gc)
+{
+	wake_up_process(gc->gc_reader_ts);
+}
+
+static void pblk_gc_kick(struct pblk *pblk)
+{
+	struct pblk_gc *gc = &pblk->gc;
+
+	pblk_gc_writer_kick(gc);
+	pblk_gc_reader_kick(gc);
+
+	/* If we're shutting down GC, let's not start it up again */
+	if (gc->gc_enabled) {
+		wake_up_process(gc->gc_ts);
+		mod_timer(&gc->gc_timer,
+			  jiffies + msecs_to_jiffies(GC_TIME_MSECS));
+	}
+}
+
 static int pblk_gc_read(struct pblk *pblk)
 {
 	struct pblk_gc *gc = &pblk->gc;
@@ -305,11 +324,6 @@ static int pblk_gc_read(struct pblk *pblk)
 	return 0;
 }
 
-static void pblk_gc_reader_kick(struct pblk_gc *gc)
-{
-	wake_up_process(gc->gc_reader_ts);
-}
-
 static struct pblk_line *pblk_gc_get_victim_line(struct pblk *pblk,
 						 struct list_head *group_list)
 {
@@ -338,26 +352,17 @@ static bool pblk_gc_should_run(struct pblk_gc *gc, struct pblk_rl *rl)
 	return ((gc->gc_active) && (nr_blocks_need > nr_blocks_free));
 }
 
-/*
- * Lines with no valid sectors will be returned to the free list immediately. If
- * GC is activated - either because the free block count is under the determined
- * threshold, or because it is being forced from user space - only lines with a
- * high count of invalid sectors will be recycled.
- */
-static void pblk_gc_run(struct pblk *pblk)
+void pblk_gc_free_full_lines(struct pblk *pblk)
 {
 	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
 	struct pblk_gc *gc = &pblk->gc;
 	struct pblk_line *line;
-	struct list_head *group_list;
-	bool run_gc;
-	int inflight_gc, gc_group = 0, prev_group = 0;
 
 	do {
 		spin_lock(&l_mg->gc_lock);
 		if (list_empty(&l_mg->gc_full_list)) {
 			spin_unlock(&l_mg->gc_lock);
-			break;
+			return;
 		}
 
 		line = list_first_entry(&l_mg->gc_full_list,
@@ -371,11 +376,30 @@ static void pblk_gc_run(struct pblk *pblk)
 		list_del(&line->list);
 		spin_unlock(&l_mg->gc_lock);
 
+		atomic_inc(&gc->pipeline_gc);
 		kref_put(&line->ref, pblk_line_put);
 	} while (1);
+}
+
+/*
+ * Lines with no valid sectors will be returned to the free list immediately. If
+ * GC is activated - either because the free block count is under the determined
+ * threshold, or because it is being forced from user space - only lines with a
+ * high count of invalid sectors will be recycled.
+ */
+static void pblk_gc_run(struct pblk *pblk)
+{
+	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
+	struct pblk_gc *gc = &pblk->gc;
+	struct pblk_line *line;
+	struct list_head *group_list;
+	bool run_gc;
+	int read_inflight_gc, gc_group = 0, prev_group = 0;
+
+	pblk_gc_free_full_lines(pblk);
 
 	run_gc = pblk_gc_should_run(&pblk->gc, &pblk->rl);
-	if (!run_gc || (atomic_read(&gc->inflight_gc) >= PBLK_GC_L_QD))
+	if (!run_gc || (atomic_read(&gc->read_inflight_gc) >= PBLK_GC_L_QD))
 		return;
 
 next_gc_group:
@@ -402,14 +426,14 @@ next_gc_group:
 		list_add_tail(&line->list, &gc->r_list);
 		spin_unlock(&gc->r_lock);
 
-		inflight_gc = atomic_inc_return(&gc->inflight_gc);
+		read_inflight_gc = atomic_inc_return(&gc->read_inflight_gc);
 		pblk_gc_reader_kick(gc);
 
 		prev_group = 1;
 
 		/* No need to queue up more GC lines than we can handle */
 		run_gc = pblk_gc_should_run(&pblk->gc, &pblk->rl);
-		if (!run_gc || inflight_gc >= PBLK_GC_L_QD)
+		if (!run_gc || read_inflight_gc >= PBLK_GC_L_QD)
 			break;
 	} while (1);
 
@@ -418,16 +442,6 @@ next_gc_group:
 		goto next_gc_group;
 }
 
-void pblk_gc_kick(struct pblk *pblk)
-{
-	struct pblk_gc *gc = &pblk->gc;
-
-	wake_up_process(gc->gc_ts);
-	pblk_gc_writer_kick(gc);
-	pblk_gc_reader_kick(gc);
-	mod_timer(&gc->gc_timer, jiffies + msecs_to_jiffies(GC_TIME_MSECS));
-}
-
 static void pblk_gc_timer(unsigned long data)
 {
 	struct pblk *pblk = (struct pblk *)data;
@@ -465,6 +479,7 @@ static int pblk_gc_writer_ts(void *data)
 static int pblk_gc_reader_ts(void *data)
 {
 	struct pblk *pblk = data;
+	struct pblk_gc *gc = &pblk->gc;
 
 	while (!kthread_should_stop()) {
 		if (!pblk_gc_read(pblk))
@@ -473,6 +488,18 @@ static int pblk_gc_reader_ts(void *data)
 		io_schedule();
 	}
 
+#ifdef CONFIG_NVM_DEBUG
+	pr_info("pblk: flushing gc pipeline, %d lines left\n",
+		atomic_read(&gc->pipeline_gc));
+#endif
+
+	do {
+		if (!atomic_read(&gc->pipeline_gc))
+			break;
+
+		schedule();
+	} while (1);
+
 	return 0;
 }
 
@@ -486,10 +513,10 @@ void pblk_gc_should_start(struct pblk *pblk)
 {
 	struct pblk_gc *gc = &pblk->gc;
 
-	if (gc->gc_enabled && !gc->gc_active)
+	if (gc->gc_enabled && !gc->gc_active) {
 		pblk_gc_start(pblk);
-
-	pblk_gc_kick(pblk);
+		pblk_gc_kick(pblk);
+	}
 }
 
 /*
@@ -510,6 +537,11 @@ void pblk_gc_should_stop(struct pblk *pblk)
 		pblk_gc_stop(pblk, 0);
 }
 
+void pblk_gc_should_kick(struct pblk *pblk)
+{
+	pblk_rl_update_rates(&pblk->rl);
+}
+
 void pblk_gc_sysfs_state_show(struct pblk *pblk, int *gc_enabled,
 			      int *gc_active)
 {
@@ -576,7 +608,8 @@ int pblk_gc_init(struct pblk *pblk)
 	gc->gc_forced = 0;
 	gc->gc_enabled = 1;
 	gc->w_entries = 0;
-	atomic_set(&gc->inflight_gc, 0);
+	atomic_set(&gc->read_inflight_gc, 0);
+	atomic_set(&gc->pipeline_gc, 0);
 
 	/* Workqueue that reads valid sectors from a line and submit them to the
 	 * GC writer to be recycled.
@@ -602,7 +635,7 @@ int pblk_gc_init(struct pblk *pblk)
 	spin_lock_init(&gc->w_lock);
 	spin_lock_init(&gc->r_lock);
 
-	sema_init(&gc->gc_sem, 128);
+	sema_init(&gc->gc_sem, PBLK_GC_RQ_QD);
 
 	INIT_LIST_HEAD(&gc->w_list);
 	INIT_LIST_HEAD(&gc->r_list);
@@ -625,24 +658,24 @@ void pblk_gc_exit(struct pblk *pblk)
 {
 	struct pblk_gc *gc = &pblk->gc;
 
-	flush_workqueue(gc->gc_reader_wq);
-	flush_workqueue(gc->gc_line_reader_wq);
-
-	del_timer(&gc->gc_timer);
+	gc->gc_enabled = 0;
+	del_timer_sync(&gc->gc_timer);
 	pblk_gc_stop(pblk, 1);
 
 	if (gc->gc_ts)
 		kthread_stop(gc->gc_ts);
 
+	if (gc->gc_reader_ts)
+		kthread_stop(gc->gc_reader_ts);
+
+	flush_workqueue(gc->gc_reader_wq);
 	if (gc->gc_reader_wq)
 		destroy_workqueue(gc->gc_reader_wq);
 
+	flush_workqueue(gc->gc_line_reader_wq);
 	if (gc->gc_line_reader_wq)
 		destroy_workqueue(gc->gc_line_reader_wq);
 
 	if (gc->gc_writer_ts)
 		kthread_stop(gc->gc_writer_ts);
-
-	if (gc->gc_reader_ts)
-		kthread_stop(gc->gc_reader_ts);
 }
diff --git a/drivers/lightnvm/pblk-init.c b/drivers/lightnvm/pblk-init.c
index 1b0f61233c21..f62112ba5482 100644
--- a/drivers/lightnvm/pblk-init.c
+++ b/drivers/lightnvm/pblk-init.c
@@ -20,8 +20,8 @@
 
 #include "pblk.h"
 
-static struct kmem_cache *pblk_blk_ws_cache, *pblk_rec_cache, *pblk_g_rq_cache,
-				*pblk_w_rq_cache, *pblk_line_meta_cache;
+static struct kmem_cache *pblk_ws_cache, *pblk_rec_cache, *pblk_g_rq_cache,
+				*pblk_w_rq_cache;
 static DECLARE_RWSEM(pblk_lock);
 struct bio_set *pblk_bio_set;
 
@@ -46,7 +46,7 @@ static int pblk_rw_io(struct request_queue *q, struct pblk *pblk,
 	 * user I/Os. Unless stalled, the rate limiter leaves at least 256KB
 	 * available for user I/O.
 	 */
-	if (unlikely(pblk_get_secs(bio) >= pblk_rl_sysfs_rate_show(&pblk->rl)))
+	if (pblk_get_secs(bio) > pblk_rl_max_io(&pblk->rl))
 		blk_queue_split(q, &bio);
 
 	return pblk_write_to_cache(pblk, bio, PBLK_IOTYPE_USER);
@@ -76,6 +76,28 @@ static blk_qc_t pblk_make_rq(struct request_queue *q, struct bio *bio)
 	return BLK_QC_T_NONE;
 }
 
+static size_t pblk_trans_map_size(struct pblk *pblk)
+{
+	int entry_size = 8;
+
+	if (pblk->ppaf_bitsize < 32)
+		entry_size = 4;
+
+	return entry_size * pblk->rl.nr_secs;
+}
+
+#ifdef CONFIG_NVM_DEBUG
+static u32 pblk_l2p_crc(struct pblk *pblk)
+{
+	size_t map_size;
+	u32 crc = ~(u32)0;
+
+	map_size = pblk_trans_map_size(pblk);
+	crc = crc32_le(crc, pblk->trans_map, map_size);
+	return crc;
+}
+#endif
+
 static void pblk_l2p_free(struct pblk *pblk)
 {
 	vfree(pblk->trans_map);
@@ -85,12 +107,10 @@ static int pblk_l2p_init(struct pblk *pblk)
 {
 	sector_t i;
 	struct ppa_addr ppa;
-	int entry_size = 8;
+	size_t map_size;
 
-	if (pblk->ppaf_bitsize < 32)
-		entry_size = 4;
-
-	pblk->trans_map = vmalloc(entry_size * pblk->rl.nr_secs);
+	map_size = pblk_trans_map_size(pblk);
+	pblk->trans_map = vmalloc(map_size);
 	if (!pblk->trans_map)
 		return -ENOMEM;
 
@@ -132,7 +152,6 @@ static int pblk_rwb_init(struct pblk *pblk)
 }
 
 /* Minimum pages needed within a lun */
-#define PAGE_POOL_SIZE 16
 #define ADDR_POOL_SIZE 64
 
 static int pblk_set_ppaf(struct pblk *pblk)
@@ -182,12 +201,10 @@ static int pblk_set_ppaf(struct pblk *pblk)
 
 static int pblk_init_global_caches(struct pblk *pblk)
 {
-	char cache_name[PBLK_CACHE_NAME_LEN];
-
 	down_write(&pblk_lock);
-	pblk_blk_ws_cache = kmem_cache_create("pblk_blk_ws",
+	pblk_ws_cache = kmem_cache_create("pblk_blk_ws",
 				sizeof(struct pblk_line_ws), 0, 0, NULL);
-	if (!pblk_blk_ws_cache) {
+	if (!pblk_ws_cache) {
 		up_write(&pblk_lock);
 		return -ENOMEM;
 	}
@@ -195,7 +212,7 @@ static int pblk_init_global_caches(struct pblk *pblk)
 	pblk_rec_cache = kmem_cache_create("pblk_rec",
 				sizeof(struct pblk_rec_ctx), 0, 0, NULL);
 	if (!pblk_rec_cache) {
-		kmem_cache_destroy(pblk_blk_ws_cache);
+		kmem_cache_destroy(pblk_ws_cache);
 		up_write(&pblk_lock);
 		return -ENOMEM;
 	}
@@ -203,7 +220,7 @@ static int pblk_init_global_caches(struct pblk *pblk)
 	pblk_g_rq_cache = kmem_cache_create("pblk_g_rq", pblk_g_rq_size,
 				0, 0, NULL);
 	if (!pblk_g_rq_cache) {
-		kmem_cache_destroy(pblk_blk_ws_cache);
+		kmem_cache_destroy(pblk_ws_cache);
 		kmem_cache_destroy(pblk_rec_cache);
 		up_write(&pblk_lock);
 		return -ENOMEM;
@@ -212,30 +229,25 @@ static int pblk_init_global_caches(struct pblk *pblk)
 	pblk_w_rq_cache = kmem_cache_create("pblk_w_rq", pblk_w_rq_size,
 				0, 0, NULL);
 	if (!pblk_w_rq_cache) {
-		kmem_cache_destroy(pblk_blk_ws_cache);
+		kmem_cache_destroy(pblk_ws_cache);
 		kmem_cache_destroy(pblk_rec_cache);
 		kmem_cache_destroy(pblk_g_rq_cache);
 		up_write(&pblk_lock);
 		return -ENOMEM;
 	}
-
-	snprintf(cache_name, sizeof(cache_name), "pblk_line_m_%s",
-							pblk->disk->disk_name);
-	pblk_line_meta_cache = kmem_cache_create(cache_name,
-				pblk->lm.sec_bitmap_len, 0, 0, NULL);
-	if (!pblk_line_meta_cache) {
-		kmem_cache_destroy(pblk_blk_ws_cache);
-		kmem_cache_destroy(pblk_rec_cache);
-		kmem_cache_destroy(pblk_g_rq_cache);
-		kmem_cache_destroy(pblk_w_rq_cache);
-		up_write(&pblk_lock);
-		return -ENOMEM;
-	}
 	up_write(&pblk_lock);
 
 	return 0;
 }
 
+static void pblk_free_global_caches(struct pblk *pblk)
+{
+	kmem_cache_destroy(pblk_ws_cache);
+	kmem_cache_destroy(pblk_rec_cache);
+	kmem_cache_destroy(pblk_g_rq_cache);
+	kmem_cache_destroy(pblk_w_rq_cache);
+}
+
 static int pblk_core_init(struct pblk *pblk)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
@@ -247,70 +259,80 @@ static int pblk_core_init(struct pblk *pblk)
 	if (pblk_init_global_caches(pblk))
 		return -ENOMEM;
 
-	pblk->page_pool = mempool_create_page_pool(PAGE_POOL_SIZE, 0);
-	if (!pblk->page_pool)
-		return -ENOMEM;
+	/* Internal bios can be at most the sectors signaled by the device. */
+	pblk->page_bio_pool = mempool_create_page_pool(nvm_max_phys_sects(dev),
+									0);
+	if (!pblk->page_bio_pool)
+		goto free_global_caches;
 
-	pblk->line_ws_pool = mempool_create_slab_pool(PBLK_WS_POOL_SIZE,
-							pblk_blk_ws_cache);
-	if (!pblk->line_ws_pool)
-		goto free_page_pool;
+	pblk->gen_ws_pool = mempool_create_slab_pool(PBLK_GEN_WS_POOL_SIZE,
+							pblk_ws_cache);
+	if (!pblk->gen_ws_pool)
+		goto free_page_bio_pool;
 
 	pblk->rec_pool = mempool_create_slab_pool(geo->nr_luns, pblk_rec_cache);
 	if (!pblk->rec_pool)
-		goto free_blk_ws_pool;
+		goto free_gen_ws_pool;
 
-	pblk->g_rq_pool = mempool_create_slab_pool(PBLK_READ_REQ_POOL_SIZE,
+	pblk->r_rq_pool = mempool_create_slab_pool(geo->nr_luns,
 							pblk_g_rq_cache);
-	if (!pblk->g_rq_pool)
+	if (!pblk->r_rq_pool)
 		goto free_rec_pool;
 
-	pblk->w_rq_pool = mempool_create_slab_pool(geo->nr_luns * 2,
+	pblk->e_rq_pool = mempool_create_slab_pool(geo->nr_luns,
+							pblk_g_rq_cache);
+	if (!pblk->e_rq_pool)
+		goto free_r_rq_pool;
+
+	pblk->w_rq_pool = mempool_create_slab_pool(geo->nr_luns,
 							pblk_w_rq_cache);
 	if (!pblk->w_rq_pool)
-		goto free_g_rq_pool;
-
-	pblk->line_meta_pool =
-			mempool_create_slab_pool(PBLK_META_POOL_SIZE,
-							pblk_line_meta_cache);
-	if (!pblk->line_meta_pool)
-		goto free_w_rq_pool;
+		goto free_e_rq_pool;
 
 	pblk->close_wq = alloc_workqueue("pblk-close-wq",
 			WQ_MEM_RECLAIM | WQ_UNBOUND, PBLK_NR_CLOSE_JOBS);
 	if (!pblk->close_wq)
-		goto free_line_meta_pool;
+		goto free_w_rq_pool;
 
 	pblk->bb_wq = alloc_workqueue("pblk-bb-wq",
 			WQ_MEM_RECLAIM | WQ_UNBOUND, 0);
 	if (!pblk->bb_wq)
 		goto free_close_wq;
 
-	if (pblk_set_ppaf(pblk))
+	pblk->r_end_wq = alloc_workqueue("pblk-read-end-wq",
+			WQ_MEM_RECLAIM | WQ_UNBOUND, 0);
+	if (!pblk->r_end_wq)
 		goto free_bb_wq;
 
+	if (pblk_set_ppaf(pblk))
+		goto free_r_end_wq;
+
 	if (pblk_rwb_init(pblk))
-		goto free_bb_wq;
+		goto free_r_end_wq;
 
 	INIT_LIST_HEAD(&pblk->compl_list);
 	return 0;
 
+free_r_end_wq:
+	destroy_workqueue(pblk->r_end_wq);
 free_bb_wq:
 	destroy_workqueue(pblk->bb_wq);
 free_close_wq:
 	destroy_workqueue(pblk->close_wq);
-free_line_meta_pool:
-	mempool_destroy(pblk->line_meta_pool);
 free_w_rq_pool:
 	mempool_destroy(pblk->w_rq_pool);
-free_g_rq_pool:
-	mempool_destroy(pblk->g_rq_pool);
+free_e_rq_pool:
+	mempool_destroy(pblk->e_rq_pool);
+free_r_rq_pool:
+	mempool_destroy(pblk->r_rq_pool);
 free_rec_pool:
 	mempool_destroy(pblk->rec_pool);
-free_blk_ws_pool:
-	mempool_destroy(pblk->line_ws_pool);
-free_page_pool:
-	mempool_destroy(pblk->page_pool);
+free_gen_ws_pool:
+	mempool_destroy(pblk->gen_ws_pool);
+free_page_bio_pool:
+	mempool_destroy(pblk->page_bio_pool);
+free_global_caches:
+	pblk_free_global_caches(pblk);
 	return -ENOMEM;
 }
 
@@ -319,21 +341,20 @@ static void pblk_core_free(struct pblk *pblk)
 	if (pblk->close_wq)
 		destroy_workqueue(pblk->close_wq);
 
+	if (pblk->r_end_wq)
+		destroy_workqueue(pblk->r_end_wq);
+
 	if (pblk->bb_wq)
 		destroy_workqueue(pblk->bb_wq);
 
-	mempool_destroy(pblk->page_pool);
-	mempool_destroy(pblk->line_ws_pool);
+	mempool_destroy(pblk->page_bio_pool);
+	mempool_destroy(pblk->gen_ws_pool);
 	mempool_destroy(pblk->rec_pool);
-	mempool_destroy(pblk->g_rq_pool);
+	mempool_destroy(pblk->r_rq_pool);
+	mempool_destroy(pblk->e_rq_pool);
 	mempool_destroy(pblk->w_rq_pool);
-	mempool_destroy(pblk->line_meta_pool);
 
-	kmem_cache_destroy(pblk_blk_ws_cache);
-	kmem_cache_destroy(pblk_rec_cache);
-	kmem_cache_destroy(pblk_g_rq_cache);
-	kmem_cache_destroy(pblk_w_rq_cache);
-	kmem_cache_destroy(pblk_line_meta_cache);
+	pblk_free_global_caches(pblk);
 }
 
 static void pblk_luns_free(struct pblk *pblk)
@@ -372,13 +393,11 @@ static void pblk_line_meta_free(struct pblk *pblk)
 	kfree(l_mg->bb_aux);
 	kfree(l_mg->vsc_list);
 
-	spin_lock(&l_mg->free_lock);
 	for (i = 0; i < PBLK_DATA_LINES; i++) {
 		kfree(l_mg->sline_meta[i]);
 		pblk_mfree(l_mg->eline_meta[i]->buf, l_mg->emeta_alloc_type);
 		kfree(l_mg->eline_meta[i]);
 	}
-	spin_unlock(&l_mg->free_lock);
 
 	kfree(pblk->lines);
 }
@@ -507,6 +526,13 @@ static int pblk_lines_configure(struct pblk *pblk, int flags)
 		}
 	}
 
+#ifdef CONFIG_NVM_DEBUG
+	pr_info("pblk init: L2P CRC: %x\n", pblk_l2p_crc(pblk));
+#endif
+
+	/* Free full lines directly as GC has not been started yet */
+	pblk_gc_free_full_lines(pblk);
+
 	if (!line) {
 		/* Configure next line for user data */
 		line = pblk_line_get_first_data(pblk);
@@ -630,7 +656,10 @@ static int pblk_lines_alloc_metadata(struct pblk *pblk)
 
 fail_free_emeta:
 	while (--i >= 0) {
-		vfree(l_mg->eline_meta[i]->buf);
+		if (l_mg->emeta_alloc_type == PBLK_VMALLOC_META)
+			vfree(l_mg->eline_meta[i]->buf);
+		else
+			kfree(l_mg->eline_meta[i]->buf);
 		kfree(l_mg->eline_meta[i]);
 	}
 
@@ -681,8 +710,8 @@ static int pblk_lines_init(struct pblk *pblk)
 	lm->blk_bitmap_len = BITS_TO_LONGS(geo->nr_luns) * sizeof(long);
 	lm->sec_bitmap_len = BITS_TO_LONGS(lm->sec_per_line) * sizeof(long);
 	lm->lun_bitmap_len = BITS_TO_LONGS(geo->nr_luns) * sizeof(long);
-	lm->high_thrs = lm->sec_per_line / 2;
-	lm->mid_thrs = lm->sec_per_line / 4;
+	lm->mid_thrs = lm->sec_per_line / 2;
+	lm->high_thrs = lm->sec_per_line / 4;
 	lm->meta_distance = (geo->nr_luns / 2) * pblk->min_write_pgs;
 
 	/* Calculate necessary pages for smeta. See comment over struct
@@ -713,9 +742,13 @@ add_emeta_page:
 		goto add_emeta_page;
 	}
 
-	lm->emeta_bb = geo->nr_luns - i;
-	lm->min_blk_line = 1 + DIV_ROUND_UP(lm->smeta_sec + lm->emeta_sec[0],
-							geo->sec_per_blk);
+	lm->emeta_bb = geo->nr_luns > i ? geo->nr_luns - i : 0;
+
+	lm->min_blk_line = 1;
+	if (geo->nr_luns > 1)
+		lm->min_blk_line += DIV_ROUND_UP(lm->smeta_sec +
+					lm->emeta_sec[0], geo->sec_per_blk);
+
 	if (lm->min_blk_line > lm->blk_per_line) {
 		pr_err("pblk: config. not supported. Min. LUN in line:%d\n",
 							lm->blk_per_line);
@@ -890,6 +923,11 @@ static void pblk_exit(void *private)
 	down_write(&pblk_lock);
 	pblk_gc_exit(pblk);
 	pblk_tear_down(pblk);
+
+#ifdef CONFIG_NVM_DEBUG
+	pr_info("pblk exit: L2P CRC: %x\n", pblk_l2p_crc(pblk));
+#endif
+
 	pblk_free(pblk);
 	up_write(&pblk_lock);
 }
@@ -911,7 +949,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
 	int ret;
 
 	if (dev->identity.dom & NVM_RSP_L2P) {
-		pr_err("pblk: device-side L2P table not supported. (%x)\n",
+		pr_err("pblk: host-side L2P table not supported. (%x)\n",
 							dev->identity.dom);
 		return ERR_PTR(-EINVAL);
 	}
@@ -923,6 +961,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
 	pblk->dev = dev;
 	pblk->disk = tdisk;
 	pblk->state = PBLK_STATE_RUNNING;
+	pblk->gc.gc_enabled = 0;
 
 	spin_lock_init(&pblk->trans_lock);
 	spin_lock_init(&pblk->lock);
@@ -944,6 +983,7 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
 	atomic_long_set(&pblk->recov_writes, 0);
 	atomic_long_set(&pblk->recov_writes, 0);
 	atomic_long_set(&pblk->recov_gc_writes, 0);
+	atomic_long_set(&pblk->recov_gc_reads, 0);
 #endif
 
 	atomic_long_set(&pblk->read_failed, 0);
@@ -1012,6 +1052,10 @@ static void *pblk_init(struct nvm_tgt_dev *dev, struct gendisk *tdisk,
 			pblk->rwb.nr_entries);
 
 	wake_up_process(pblk->writer_ts);
+
+	/* Check if we need to start GC */
+	pblk_gc_should_kick(pblk);
+
 	return pblk;
 
 fail_stop_writer:
@@ -1044,6 +1088,7 @@ static struct nvm_tgt_type tt_pblk = {
 
 	.sysfs_init	= pblk_sysfs_init,
 	.sysfs_exit	= pblk_sysfs_exit,
+	.owner		= THIS_MODULE,
 };
 
 static int __init pblk_module_init(void)
diff --git a/drivers/lightnvm/pblk-map.c b/drivers/lightnvm/pblk-map.c
index fddb924f6dde..6f3ecde2140f 100644
--- a/drivers/lightnvm/pblk-map.c
+++ b/drivers/lightnvm/pblk-map.c
@@ -25,16 +25,28 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry,
 			       unsigned int valid_secs)
 {
 	struct pblk_line *line = pblk_line_get_data(pblk);
-	struct pblk_emeta *emeta = line->emeta;
+	struct pblk_emeta *emeta;
 	struct pblk_w_ctx *w_ctx;
-	__le64 *lba_list = emeta_to_lbas(pblk, emeta->buf);
+	__le64 *lba_list;
 	u64 paddr;
 	int nr_secs = pblk->min_write_pgs;
 	int i;
 
+	if (pblk_line_is_full(line)) {
+		struct pblk_line *prev_line = line;
+
+		line = pblk_line_replace_data(pblk);
+		pblk_line_close_meta(pblk, prev_line);
+	}
+
+	emeta = line->emeta;
+	lba_list = emeta_to_lbas(pblk, emeta->buf);
+
 	paddr = pblk_alloc_page(pblk, line, nr_secs);
 
 	for (i = 0; i < nr_secs; i++, paddr++) {
+		__le64 addr_empty = cpu_to_le64(ADDR_EMPTY);
+
 		/* ppa to be sent to the device */
 		ppa_list[i] = addr_to_gen_ppa(pblk, paddr, line->id);
 
@@ -51,22 +63,14 @@ static void pblk_map_page_data(struct pblk *pblk, unsigned int sentry,
 			w_ctx->ppa = ppa_list[i];
 			meta_list[i].lba = cpu_to_le64(w_ctx->lba);
 			lba_list[paddr] = cpu_to_le64(w_ctx->lba);
-			line->nr_valid_lbas++;
+			if (lba_list[paddr] != addr_empty)
+				line->nr_valid_lbas++;
 		} else {
-			__le64 addr_empty = cpu_to_le64(ADDR_EMPTY);
-
 			lba_list[paddr] = meta_list[i].lba = addr_empty;
 			__pblk_map_invalidate(pblk, line, paddr);
 		}
 	}
 
-	if (pblk_line_is_full(line)) {
-		struct pblk_line *prev_line = line;
-
-		pblk_line_replace_data(pblk);
-		pblk_line_close_meta(pblk, prev_line);
-	}
-
 	pblk_down_rq(pblk, ppa_list, nr_secs, lun_bitmap);
 }
 
diff --git a/drivers/lightnvm/pblk-rb.c b/drivers/lightnvm/pblk-rb.c
index 9bc32578a766..b8f78e401482 100644
--- a/drivers/lightnvm/pblk-rb.c
+++ b/drivers/lightnvm/pblk-rb.c
@@ -201,8 +201,7 @@ unsigned int pblk_rb_read_commit(struct pblk_rb *rb, unsigned int nr_entries)
 	return subm;
 }
 
-static int __pblk_rb_update_l2p(struct pblk_rb *rb, unsigned int *l2p_upd,
-				unsigned int to_update)
+static int __pblk_rb_update_l2p(struct pblk_rb *rb, unsigned int to_update)
 {
 	struct pblk *pblk = container_of(rb, struct pblk, rwb);
 	struct pblk_line *line;
@@ -213,7 +212,7 @@ static int __pblk_rb_update_l2p(struct pblk_rb *rb, unsigned int *l2p_upd,
 	int flags;
 
 	for (i = 0; i < to_update; i++) {
-		entry = &rb->entries[*l2p_upd];
+		entry = &rb->entries[rb->l2p_update];
 		w_ctx = &entry->w_ctx;
 
 		flags = READ_ONCE(entry->w_ctx.flags);
@@ -230,7 +229,7 @@ static int __pblk_rb_update_l2p(struct pblk_rb *rb, unsigned int *l2p_upd,
 		line = &pblk->lines[pblk_tgt_ppa_to_line(w_ctx->ppa)];
 		kref_put(&line->ref, pblk_line_put);
 		clean_wctx(w_ctx);
-		*l2p_upd = (*l2p_upd + 1) & (rb->nr_entries - 1);
+		rb->l2p_update = (rb->l2p_update + 1) & (rb->nr_entries - 1);
 	}
 
 	pblk_rl_out(&pblk->rl, user_io, gc_io);
@@ -258,7 +257,7 @@ static int pblk_rb_update_l2p(struct pblk_rb *rb, unsigned int nr_entries,
 
 	count = nr_entries - space;
 	/* l2p_update used exclusively under rb->w_lock */
-	ret = __pblk_rb_update_l2p(rb, &rb->l2p_update, count);
+	ret = __pblk_rb_update_l2p(rb, count);
 
 out:
 	return ret;
@@ -280,7 +279,7 @@ void pblk_rb_sync_l2p(struct pblk_rb *rb)
 	sync = smp_load_acquire(&rb->sync);
 
 	to_update = pblk_rb_ring_count(sync, rb->l2p_update, rb->nr_entries);
-	__pblk_rb_update_l2p(rb, &rb->l2p_update, to_update);
+	__pblk_rb_update_l2p(rb, to_update);
 
 	spin_unlock(&rb->w_lock);
 }
@@ -325,8 +324,8 @@ void pblk_rb_write_entry_user(struct pblk_rb *rb, void *data,
 }
 
 void pblk_rb_write_entry_gc(struct pblk_rb *rb, void *data,
-			    struct pblk_w_ctx w_ctx, struct pblk_line *gc_line,
-			    unsigned int ring_pos)
+			    struct pblk_w_ctx w_ctx, struct pblk_line *line,
+			    u64 paddr, unsigned int ring_pos)
 {
 	struct pblk *pblk = container_of(rb, struct pblk, rwb);
 	struct pblk_rb_entry *entry;
@@ -341,7 +340,7 @@ void pblk_rb_write_entry_gc(struct pblk_rb *rb, void *data,
 
 	__pblk_rb_write_entry(rb, data, w_ctx, entry);
 
-	if (!pblk_update_map_gc(pblk, w_ctx.lba, entry->cacheline, gc_line))
+	if (!pblk_update_map_gc(pblk, w_ctx.lba, entry->cacheline, line, paddr))
 		entry->w_ctx.lba = ADDR_EMPTY;
 
 	flags = w_ctx.flags | PBLK_WRITTEN_DATA;
@@ -355,7 +354,6 @@ static int pblk_rb_sync_point_set(struct pblk_rb *rb, struct bio *bio,
 {
 	struct pblk_rb_entry *entry;
 	unsigned int subm, sync_point;
-	int flags;
 
 	subm = READ_ONCE(rb->subm);
 
@@ -369,12 +367,6 @@ static int pblk_rb_sync_point_set(struct pblk_rb *rb, struct bio *bio,
 	sync_point = (pos == 0) ? (rb->nr_entries - 1) : (pos - 1);
 	entry = &rb->entries[sync_point];
 
-	flags = READ_ONCE(entry->w_ctx.flags);
-	flags |= PBLK_FLUSH_ENTRY;
-
-	/* Release flags on context. Protect from writes */
-	smp_store_release(&entry->w_ctx.flags, flags);
-
 	/* Protect syncs */
 	smp_store_release(&rb->sync_point, sync_point);
 
@@ -454,6 +446,7 @@ static int pblk_rb_may_write_flush(struct pblk_rb *rb, unsigned int nr_entries,
 
 	/* Protect from read count */
 	smp_store_release(&rb->mem, mem);
+
 	return 1;
 }
 
@@ -558,12 +551,13 @@ out:
  * persist data on the write buffer to the media.
  */
 unsigned int pblk_rb_read_to_bio(struct pblk_rb *rb, struct nvm_rq *rqd,
-				 struct bio *bio, unsigned int pos,
-				 unsigned int nr_entries, unsigned int count)
+				 unsigned int pos, unsigned int nr_entries,
+				 unsigned int count)
 {
 	struct pblk *pblk = container_of(rb, struct pblk, rwb);
 	struct request_queue *q = pblk->dev->q;
 	struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd);
+	struct bio *bio = rqd->bio;
 	struct pblk_rb_entry *entry;
 	struct page *page;
 	unsigned int pad = 0, to_read = nr_entries;
diff --git a/drivers/lightnvm/pblk-read.c b/drivers/lightnvm/pblk-read.c
index d682e89e6493..ca79d8fb3e60 100644
--- a/drivers/lightnvm/pblk-read.c
+++ b/drivers/lightnvm/pblk-read.c
@@ -39,21 +39,15 @@ static int pblk_read_from_cache(struct pblk *pblk, struct bio *bio,
 }
 
 static void pblk_read_ppalist_rq(struct pblk *pblk, struct nvm_rq *rqd,
-				 unsigned long *read_bitmap)
+				 sector_t blba, unsigned long *read_bitmap)
 {
+	struct pblk_sec_meta *meta_list = rqd->meta_list;
 	struct bio *bio = rqd->bio;
 	struct ppa_addr ppas[PBLK_MAX_REQ_ADDRS];
-	sector_t blba = pblk_get_lba(bio);
 	int nr_secs = rqd->nr_ppas;
 	bool advanced_bio = false;
 	int i, j = 0;
 
-	/* logic error: lba out-of-bounds. Ignore read request */
-	if (blba + nr_secs >= pblk->rl.nr_secs) {
-		WARN(1, "pblk: read lbas out of bounds\n");
-		return;
-	}
-
 	pblk_lookup_l2p_seq(pblk, ppas, blba, nr_secs);
 
 	for (i = 0; i < nr_secs; i++) {
@@ -63,6 +57,7 @@ static void pblk_read_ppalist_rq(struct pblk *pblk, struct nvm_rq *rqd,
 retry:
 		if (pblk_ppa_empty(p)) {
 			WARN_ON(test_and_set_bit(i, read_bitmap));
+			meta_list[i].lba = cpu_to_le64(ADDR_EMPTY);
 
 			if (unlikely(!advanced_bio)) {
 				bio_advance(bio, (i) * PBLK_EXPOSED_PAGE_SIZE);
@@ -82,6 +77,7 @@ retry:
 				goto retry;
 			}
 			WARN_ON(test_and_set_bit(i, read_bitmap));
+			meta_list[i].lba = cpu_to_le64(lba);
 			advanced_bio = true;
 #ifdef CONFIG_NVM_DEBUG
 			atomic_long_inc(&pblk->cache_reads);
@@ -117,10 +113,51 @@ static int pblk_submit_read_io(struct pblk *pblk, struct nvm_rq *rqd)
 	return NVM_IO_OK;
 }
 
-static void pblk_end_io_read(struct nvm_rq *rqd)
+static void pblk_read_check(struct pblk *pblk, struct nvm_rq *rqd,
+			   sector_t blba)
+{
+	struct pblk_sec_meta *meta_list = rqd->meta_list;
+	int nr_lbas = rqd->nr_ppas;
+	int i;
+
+	for (i = 0; i < nr_lbas; i++) {
+		u64 lba = le64_to_cpu(meta_list[i].lba);
+
+		if (lba == ADDR_EMPTY)
+			continue;
+
+		WARN(lba != blba + i, "pblk: corrupted read LBA\n");
+	}
+}
+
+static void pblk_read_put_rqd_kref(struct pblk *pblk, struct nvm_rq *rqd)
+{
+	struct ppa_addr *ppa_list;
+	int i;
+
+	ppa_list = (rqd->nr_ppas > 1) ? rqd->ppa_list : &rqd->ppa_addr;
+
+	for (i = 0; i < rqd->nr_ppas; i++) {
+		struct ppa_addr ppa = ppa_list[i];
+		struct pblk_line *line;
+
+		line = &pblk->lines[pblk_dev_ppa_to_line(ppa)];
+		kref_put(&line->ref, pblk_line_put_wq);
+	}
+}
+
+static void pblk_end_user_read(struct bio *bio)
+{
+#ifdef CONFIG_NVM_DEBUG
+	WARN_ONCE(bio->bi_status, "pblk: corrupted read bio\n");
+#endif
+	bio_endio(bio);
+	bio_put(bio);
+}
+
+static void __pblk_end_io_read(struct pblk *pblk, struct nvm_rq *rqd,
+			       bool put_line)
 {
-	struct pblk *pblk = rqd->private;
-	struct nvm_tgt_dev *dev = pblk->dev;
 	struct pblk_g_ctx *r_ctx = nvm_rq_to_pdu(rqd);
 	struct bio *bio = rqd->bio;
 
@@ -131,47 +168,51 @@ static void pblk_end_io_read(struct nvm_rq *rqd)
 		WARN_ONCE(bio->bi_status, "pblk: corrupted read error\n");
 #endif
 
-	nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list);
+	pblk_read_check(pblk, rqd, r_ctx->lba);
 
 	bio_put(bio);
-	if (r_ctx->private) {
-		struct bio *orig_bio = r_ctx->private;
+	if (r_ctx->private)
+		pblk_end_user_read((struct bio *)r_ctx->private);
 
-#ifdef CONFIG_NVM_DEBUG
-		WARN_ONCE(orig_bio->bi_status, "pblk: corrupted read bio\n");
-#endif
-		bio_endio(orig_bio);
-		bio_put(orig_bio);
-	}
+	if (put_line)
+		pblk_read_put_rqd_kref(pblk, rqd);
 
 #ifdef CONFIG_NVM_DEBUG
 	atomic_long_add(rqd->nr_ppas, &pblk->sync_reads);
 	atomic_long_sub(rqd->nr_ppas, &pblk->inflight_reads);
 #endif
 
-	pblk_free_rqd(pblk, rqd, READ);
+	pblk_free_rqd(pblk, rqd, PBLK_READ);
 	atomic_dec(&pblk->inflight_io);
 }
 
+static void pblk_end_io_read(struct nvm_rq *rqd)
+{
+	struct pblk *pblk = rqd->private;
+
+	__pblk_end_io_read(pblk, rqd, true);
+}
+
 static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
 				      unsigned int bio_init_idx,
 				      unsigned long *read_bitmap)
 {
 	struct bio *new_bio, *bio = rqd->bio;
+	struct pblk_sec_meta *meta_list = rqd->meta_list;
 	struct bio_vec src_bv, dst_bv;
 	void *ppa_ptr = NULL;
 	void *src_p, *dst_p;
 	dma_addr_t dma_ppa_list = 0;
+	__le64 *lba_list_mem, *lba_list_media;
 	int nr_secs = rqd->nr_ppas;
 	int nr_holes = nr_secs - bitmap_weight(read_bitmap, nr_secs);
 	int i, ret, hole;
-	DECLARE_COMPLETION_ONSTACK(wait);
+
+	/* Re-use allocated memory for intermediate lbas */
+	lba_list_mem = (((void *)rqd->ppa_list) + pblk_dma_ppa_size);
+	lba_list_media = (((void *)rqd->ppa_list) + 2 * pblk_dma_ppa_size);
 
 	new_bio = bio_alloc(GFP_KERNEL, nr_holes);
-	if (!new_bio) {
-		pr_err("pblk: could not alloc read bio\n");
-		return NVM_IO_ERR;
-	}
 
 	if (pblk_bio_add_pages(pblk, new_bio, GFP_KERNEL, nr_holes))
 		goto err;
@@ -181,34 +222,29 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
 		goto err;
 	}
 
+	for (i = 0; i < nr_secs; i++)
+		lba_list_mem[i] = meta_list[i].lba;
+
 	new_bio->bi_iter.bi_sector = 0; /* internal bio */
 	bio_set_op_attrs(new_bio, REQ_OP_READ, 0);
-	new_bio->bi_private = &wait;
-	new_bio->bi_end_io = pblk_end_bio_sync;
 
 	rqd->bio = new_bio;
 	rqd->nr_ppas = nr_holes;
 	rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_RANDOM);
-	rqd->end_io = NULL;
 
-	if (unlikely(nr_secs > 1 && nr_holes == 1)) {
+	if (unlikely(nr_holes == 1)) {
 		ppa_ptr = rqd->ppa_list;
 		dma_ppa_list = rqd->dma_ppa_list;
 		rqd->ppa_addr = rqd->ppa_list[0];
 	}
 
-	ret = pblk_submit_read_io(pblk, rqd);
+	ret = pblk_submit_io_sync(pblk, rqd);
 	if (ret) {
 		bio_put(rqd->bio);
-		pr_err("pblk: read IO submission failed\n");
+		pr_err("pblk: sync read IO submission failed\n");
 		goto err;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: partial read I/O timed out\n");
-	}
-
 	if (rqd->error) {
 		atomic_long_inc(&pblk->read_failed);
 #ifdef CONFIG_NVM_DEBUG
@@ -216,15 +252,31 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
 #endif
 	}
 
-	if (unlikely(nr_secs > 1 && nr_holes == 1)) {
+	if (unlikely(nr_holes == 1)) {
+		struct ppa_addr ppa;
+
+		ppa = rqd->ppa_addr;
 		rqd->ppa_list = ppa_ptr;
 		rqd->dma_ppa_list = dma_ppa_list;
+		rqd->ppa_list[0] = ppa;
+	}
+
+	for (i = 0; i < nr_secs; i++) {
+		lba_list_media[i] = meta_list[i].lba;
+		meta_list[i].lba = lba_list_mem[i];
 	}
 
 	/* Fill the holes in the original bio */
 	i = 0;
 	hole = find_first_zero_bit(read_bitmap, nr_secs);
 	do {
+		int line_id = pblk_dev_ppa_to_line(rqd->ppa_list[i]);
+		struct pblk_line *line = &pblk->lines[line_id];
+
+		kref_put(&line->ref, pblk_line_put);
+
+		meta_list[hole].lba = lba_list_media[i];
+
 		src_bv = new_bio->bi_io_vec[i++];
 		dst_bv = bio->bi_io_vec[bio_init_idx + hole];
 
@@ -238,7 +290,7 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
 		kunmap_atomic(src_p);
 		kunmap_atomic(dst_p);
 
-		mempool_free(src_bv.bv_page, pblk->page_pool);
+		mempool_free(src_bv.bv_page, pblk->page_bio_pool);
 
 		hole = find_next_zero_bit(read_bitmap, nr_secs, hole + 1);
 	} while (hole < nr_secs);
@@ -246,34 +298,26 @@ static int pblk_fill_partial_read_bio(struct pblk *pblk, struct nvm_rq *rqd,
 	bio_put(new_bio);
 
 	/* Complete the original bio and associated request */
+	bio_endio(bio);
 	rqd->bio = bio;
 	rqd->nr_ppas = nr_secs;
-	rqd->private = pblk;
 
-	bio_endio(bio);
-	pblk_end_io_read(rqd);
+	__pblk_end_io_read(pblk, rqd, false);
 	return NVM_IO_OK;
 
 err:
 	/* Free allocated pages in new bio */
 	pblk_bio_free_pages(pblk, bio, 0, new_bio->bi_vcnt);
-	rqd->private = pblk;
-	pblk_end_io_read(rqd);
+	__pblk_end_io_read(pblk, rqd, false);
 	return NVM_IO_ERR;
 }
 
 static void pblk_read_rq(struct pblk *pblk, struct nvm_rq *rqd,
-			 unsigned long *read_bitmap)
+			 sector_t lba, unsigned long *read_bitmap)
 {
+	struct pblk_sec_meta *meta_list = rqd->meta_list;
 	struct bio *bio = rqd->bio;
 	struct ppa_addr ppa;
-	sector_t lba = pblk_get_lba(bio);
-
-	/* logic error: lba out-of-bounds. Ignore read request */
-	if (lba >= pblk->rl.nr_secs) {
-		WARN(1, "pblk: read lba out of bounds\n");
-		return;
-	}
 
 	pblk_lookup_l2p_seq(pblk, &ppa, lba, 1);
 
@@ -284,6 +328,7 @@ static void pblk_read_rq(struct pblk *pblk, struct nvm_rq *rqd,
 retry:
 	if (pblk_ppa_empty(ppa)) {
 		WARN_ON(test_and_set_bit(0, read_bitmap));
+		meta_list[0].lba = cpu_to_le64(ADDR_EMPTY);
 		return;
 	}
 
@@ -295,9 +340,12 @@ retry:
 			pblk_lookup_l2p_seq(pblk, &ppa, lba, 1);
 			goto retry;
 		}
+
 		WARN_ON(test_and_set_bit(0, read_bitmap));
+		meta_list[0].lba = cpu_to_le64(lba);
+
 #ifdef CONFIG_NVM_DEBUG
-			atomic_long_inc(&pblk->cache_reads);
+		atomic_long_inc(&pblk->cache_reads);
 #endif
 	} else {
 		rqd->ppa_addr = ppa;
@@ -309,22 +357,24 @@ retry:
 int pblk_submit_read(struct pblk *pblk, struct bio *bio)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
+	sector_t blba = pblk_get_lba(bio);
 	unsigned int nr_secs = pblk_get_secs(bio);
+	struct pblk_g_ctx *r_ctx;
 	struct nvm_rq *rqd;
-	unsigned long read_bitmap; /* Max 64 ppas per request */
 	unsigned int bio_init_idx;
+	unsigned long read_bitmap; /* Max 64 ppas per request */
 	int ret = NVM_IO_ERR;
 
-	if (nr_secs > PBLK_MAX_REQ_ADDRS)
+	/* logic error: lba out-of-bounds. Ignore read request */
+	if (blba >= pblk->rl.nr_secs || nr_secs > PBLK_MAX_REQ_ADDRS) {
+		WARN(1, "pblk: read lba out of bounds (lba:%llu, nr:%d)\n",
+					(unsigned long long)blba, nr_secs);
 		return NVM_IO_ERR;
+	}
 
 	bitmap_zero(&read_bitmap, nr_secs);
 
-	rqd = pblk_alloc_rqd(pblk, READ);
-	if (IS_ERR(rqd)) {
-		pr_err_ratelimited("pblk: not able to alloc rqd");
-		return NVM_IO_ERR;
-	}
+	rqd = pblk_alloc_rqd(pblk, PBLK_READ);
 
 	rqd->opcode = NVM_OP_PREAD;
 	rqd->bio = bio;
@@ -332,6 +382,9 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio)
 	rqd->private = pblk;
 	rqd->end_io = pblk_end_io_read;
 
+	r_ctx = nvm_rq_to_pdu(rqd);
+	r_ctx->lba = blba;
+
 	/* Save the index for this bio's start. This is needed in case
 	 * we need to fill a partial read.
 	 */
@@ -348,23 +401,22 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio)
 		rqd->ppa_list = rqd->meta_list + pblk_dma_meta_size;
 		rqd->dma_ppa_list = rqd->dma_meta_list + pblk_dma_meta_size;
 
-		pblk_read_ppalist_rq(pblk, rqd, &read_bitmap);
+		pblk_read_ppalist_rq(pblk, rqd, blba, &read_bitmap);
 	} else {
-		pblk_read_rq(pblk, rqd, &read_bitmap);
+		pblk_read_rq(pblk, rqd, blba, &read_bitmap);
 	}
 
 	bio_get(bio);
 	if (bitmap_full(&read_bitmap, nr_secs)) {
 		bio_endio(bio);
 		atomic_inc(&pblk->inflight_io);
-		pblk_end_io_read(rqd);
+		__pblk_end_io_read(pblk, rqd, false);
 		return NVM_IO_OK;
 	}
 
 	/* All sectors are to be read from the device */
 	if (bitmap_empty(&read_bitmap, rqd->nr_ppas)) {
 		struct bio *int_bio = NULL;
-		struct pblk_g_ctx *r_ctx = nvm_rq_to_pdu(rqd);
 
 		/* Clone read bio to deal with read errors internally */
 		int_bio = bio_clone_fast(bio, GFP_KERNEL, pblk_bio_set);
@@ -399,40 +451,46 @@ int pblk_submit_read(struct pblk *pblk, struct bio *bio)
 	return NVM_IO_OK;
 
 fail_rqd_free:
-	pblk_free_rqd(pblk, rqd, READ);
+	pblk_free_rqd(pblk, rqd, PBLK_READ);
 	return ret;
 }
 
 static int read_ppalist_rq_gc(struct pblk *pblk, struct nvm_rq *rqd,
 			      struct pblk_line *line, u64 *lba_list,
-			      unsigned int nr_secs)
+			      u64 *paddr_list_gc, unsigned int nr_secs)
 {
-	struct ppa_addr ppas[PBLK_MAX_REQ_ADDRS];
+	struct ppa_addr ppa_list_l2p[PBLK_MAX_REQ_ADDRS];
+	struct ppa_addr ppa_gc;
 	int valid_secs = 0;
 	int i;
 
-	pblk_lookup_l2p_rand(pblk, ppas, lba_list, nr_secs);
+	pblk_lookup_l2p_rand(pblk, ppa_list_l2p, lba_list, nr_secs);
 
 	for (i = 0; i < nr_secs; i++) {
-		if (pblk_addr_in_cache(ppas[i]) || ppas[i].g.blk != line->id ||
-						pblk_ppa_empty(ppas[i])) {
-			lba_list[i] = ADDR_EMPTY;
+		if (lba_list[i] == ADDR_EMPTY)
+			continue;
+
+		ppa_gc = addr_to_gen_ppa(pblk, paddr_list_gc[i], line->id);
+		if (!pblk_ppa_comp(ppa_list_l2p[i], ppa_gc)) {
+			paddr_list_gc[i] = lba_list[i] = ADDR_EMPTY;
 			continue;
 		}
 
-		rqd->ppa_list[valid_secs++] = ppas[i];
+		rqd->ppa_list[valid_secs++] = ppa_list_l2p[i];
 	}
 
 #ifdef CONFIG_NVM_DEBUG
 	atomic_long_add(valid_secs, &pblk->inflight_reads);
 #endif
+
 	return valid_secs;
 }
 
 static int read_rq_gc(struct pblk *pblk, struct nvm_rq *rqd,
-		      struct pblk_line *line, sector_t lba)
+		      struct pblk_line *line, sector_t lba,
+		      u64 paddr_gc)
 {
-	struct ppa_addr ppa;
+	struct ppa_addr ppa_l2p, ppa_gc;
 	int valid_secs = 0;
 
 	if (lba == ADDR_EMPTY)
@@ -445,15 +503,14 @@ static int read_rq_gc(struct pblk *pblk, struct nvm_rq *rqd,
 	}
 
 	spin_lock(&pblk->trans_lock);
-	ppa = pblk_trans_map_get(pblk, lba);
+	ppa_l2p = pblk_trans_map_get(pblk, lba);
 	spin_unlock(&pblk->trans_lock);
 
-	/* Ignore updated values until the moment */
-	if (pblk_addr_in_cache(ppa) || ppa.g.blk != line->id ||
-							pblk_ppa_empty(ppa))
+	ppa_gc = addr_to_gen_ppa(pblk, paddr_gc, line->id);
+	if (!pblk_ppa_comp(ppa_l2p, ppa_gc))
 		goto out;
 
-	rqd->ppa_addr = ppa;
+	rqd->ppa_addr = ppa_l2p;
 	valid_secs = 1;
 
 #ifdef CONFIG_NVM_DEBUG
@@ -464,42 +521,44 @@ out:
 	return valid_secs;
 }
 
-int pblk_submit_read_gc(struct pblk *pblk, u64 *lba_list, void *data,
-			unsigned int nr_secs, unsigned int *secs_to_gc,
-			struct pblk_line *line)
+int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
 	struct nvm_geo *geo = &dev->geo;
 	struct bio *bio;
 	struct nvm_rq rqd;
-	int ret, data_len;
-	DECLARE_COMPLETION_ONSTACK(wait);
+	int data_len;
+	int ret = NVM_IO_OK;
 
 	memset(&rqd, 0, sizeof(struct nvm_rq));
 
 	rqd.meta_list = nvm_dev_dma_alloc(dev->parent, GFP_KERNEL,
 							&rqd.dma_meta_list);
 	if (!rqd.meta_list)
-		return NVM_IO_ERR;
+		return -ENOMEM;
 
-	if (nr_secs > 1) {
+	if (gc_rq->nr_secs > 1) {
 		rqd.ppa_list = rqd.meta_list + pblk_dma_meta_size;
 		rqd.dma_ppa_list = rqd.dma_meta_list + pblk_dma_meta_size;
 
-		*secs_to_gc = read_ppalist_rq_gc(pblk, &rqd, line, lba_list,
-								nr_secs);
-		if (*secs_to_gc == 1)
+		gc_rq->secs_to_gc = read_ppalist_rq_gc(pblk, &rqd, gc_rq->line,
+							gc_rq->lba_list,
+							gc_rq->paddr_list,
+							gc_rq->nr_secs);
+		if (gc_rq->secs_to_gc == 1)
 			rqd.ppa_addr = rqd.ppa_list[0];
 	} else {
-		*secs_to_gc = read_rq_gc(pblk, &rqd, line, lba_list[0]);
+		gc_rq->secs_to_gc = read_rq_gc(pblk, &rqd, gc_rq->line,
+							gc_rq->lba_list[0],
+							gc_rq->paddr_list[0]);
 	}
 
-	if (!(*secs_to_gc))
+	if (!(gc_rq->secs_to_gc))
 		goto out;
 
-	data_len = (*secs_to_gc) * geo->sec_size;
-	bio = pblk_bio_map_addr(pblk, data, *secs_to_gc, data_len,
-						PBLK_KMALLOC_META, GFP_KERNEL);
+	data_len = (gc_rq->secs_to_gc) * geo->sec_size;
+	bio = pblk_bio_map_addr(pblk, gc_rq->data, gc_rq->secs_to_gc, data_len,
+						PBLK_VMALLOC_META, GFP_KERNEL);
 	if (IS_ERR(bio)) {
 		pr_err("pblk: could not allocate GC bio (%lu)\n", PTR_ERR(bio));
 		goto err_free_dma;
@@ -509,23 +568,16 @@ int pblk_submit_read_gc(struct pblk *pblk, u64 *lba_list, void *data,
 	bio_set_op_attrs(bio, REQ_OP_READ, 0);
 
 	rqd.opcode = NVM_OP_PREAD;
-	rqd.end_io = pblk_end_io_sync;
-	rqd.private = &wait;
-	rqd.nr_ppas = *secs_to_gc;
+	rqd.nr_ppas = gc_rq->secs_to_gc;
 	rqd.flags = pblk_set_read_mode(pblk, PBLK_READ_RANDOM);
 	rqd.bio = bio;
 
-	ret = pblk_submit_read_io(pblk, &rqd);
-	if (ret) {
-		bio_endio(bio);
+	if (pblk_submit_io_sync(pblk, &rqd)) {
+		ret = -EIO;
 		pr_err("pblk: GC read request failed\n");
-		goto err_free_dma;
+		goto err_free_bio;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: GC read I/O timed out\n");
-	}
 	atomic_dec(&pblk->inflight_io);
 
 	if (rqd.error) {
@@ -536,16 +588,18 @@ int pblk_submit_read_gc(struct pblk *pblk, u64 *lba_list, void *data,
 	}
 
 #ifdef CONFIG_NVM_DEBUG
-	atomic_long_add(*secs_to_gc, &pblk->sync_reads);
-	atomic_long_add(*secs_to_gc, &pblk->recov_gc_reads);
-	atomic_long_sub(*secs_to_gc, &pblk->inflight_reads);
+	atomic_long_add(gc_rq->secs_to_gc, &pblk->sync_reads);
+	atomic_long_add(gc_rq->secs_to_gc, &pblk->recov_gc_reads);
+	atomic_long_sub(gc_rq->secs_to_gc, &pblk->inflight_reads);
 #endif
 
 out:
 	nvm_dev_dma_free(dev->parent, rqd.meta_list, rqd.dma_meta_list);
-	return NVM_IO_OK;
+	return ret;
 
+err_free_bio:
+	bio_put(bio);
 err_free_dma:
 	nvm_dev_dma_free(dev->parent, rqd.meta_list, rqd.dma_meta_list);
-	return NVM_IO_ERR;
+	return ret;
 }
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c
index cb556e06673e..eadb3eb5d4dc 100644
--- a/drivers/lightnvm/pblk-recovery.c
+++ b/drivers/lightnvm/pblk-recovery.c
@@ -34,10 +34,6 @@ void pblk_submit_rec(struct work_struct *work)
 								max_secs);
 
 	bio = bio_alloc(GFP_KERNEL, nr_rec_secs);
-	if (!bio) {
-		pr_err("pblk: not able to create recovery bio\n");
-		return;
-	}
 
 	bio->bi_iter.bi_sector = 0;
 	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
@@ -71,7 +67,7 @@ void pblk_submit_rec(struct work_struct *work)
 
 err:
 	bio_put(bio);
-	pblk_free_rqd(pblk, rqd, WRITE);
+	pblk_free_rqd(pblk, rqd, PBLK_WRITE);
 }
 
 int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx,
@@ -84,12 +80,7 @@ int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx,
 	struct pblk_c_ctx *rec_ctx;
 	int nr_entries = c_ctx->nr_valid + c_ctx->nr_padded;
 
-	rec_rqd = pblk_alloc_rqd(pblk, WRITE);
-	if (IS_ERR(rec_rqd)) {
-		pr_err("pblk: could not create recovery req.\n");
-		return -ENOMEM;
-	}
-
+	rec_rqd = pblk_alloc_rqd(pblk, PBLK_WRITE);
 	rec_ctx = nvm_rq_to_pdu(rec_rqd);
 
 	/* Copy completion bitmap, but exclude the first X completed entries */
@@ -142,19 +133,19 @@ static int pblk_recov_l2p_from_emeta(struct pblk *pblk, struct pblk_line *line)
 	struct pblk_emeta *emeta = line->emeta;
 	struct line_emeta *emeta_buf = emeta->buf;
 	__le64 *lba_list;
-	int data_start;
-	int nr_data_lbas, nr_valid_lbas, nr_lbas = 0;
-	int i;
+	u64 data_start, data_end;
+	u64 nr_valid_lbas, nr_lbas = 0;
+	u64 i;
 
 	lba_list = pblk_recov_get_lba_list(pblk, emeta_buf);
 	if (!lba_list)
 		return 1;
 
 	data_start = pblk_line_smeta_start(pblk, line) + lm->smeta_sec;
-	nr_data_lbas = lm->sec_per_line - lm->emeta_sec[0];
+	data_end = line->emeta_ssec;
 	nr_valid_lbas = le64_to_cpu(emeta_buf->nr_valid_lbas);
 
-	for (i = data_start; i < nr_data_lbas && nr_lbas < nr_valid_lbas; i++) {
+	for (i = data_start; i < data_end; i++) {
 		struct ppa_addr ppa;
 		int pos;
 
@@ -181,8 +172,8 @@ static int pblk_recov_l2p_from_emeta(struct pblk *pblk, struct pblk_line *line)
 	}
 
 	if (nr_valid_lbas != nr_lbas)
-		pr_err("pblk: line %d - inconsistent lba list(%llu/%d)\n",
-				line->id, emeta_buf->nr_valid_lbas, nr_lbas);
+		pr_err("pblk: line %d - inconsistent lba list(%llu/%llu)\n",
+				line->id, nr_valid_lbas, nr_lbas);
 
 	line->left_msecs = 0;
 
@@ -225,7 +216,6 @@ static int pblk_recov_read_oob(struct pblk *pblk, struct pblk_line *line,
 	int rq_ppas, rq_len;
 	int i, j;
 	int ret = 0;
-	DECLARE_COMPLETION_ONSTACK(wait);
 
 	ppa_list = p.ppa_list;
 	meta_list = p.meta_list;
@@ -262,8 +252,6 @@ next_read_rq:
 	rqd->ppa_list = ppa_list;
 	rqd->dma_ppa_list = dma_ppa_list;
 	rqd->dma_meta_list = dma_meta_list;
-	rqd->end_io = pblk_end_io_sync;
-	rqd->private = &wait;
 
 	if (pblk_io_aligned(pblk, rq_ppas))
 		rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL);
@@ -289,19 +277,13 @@ next_read_rq:
 	}
 
 	/* If read fails, more padding is needed */
-	ret = pblk_submit_io(pblk, rqd);
+	ret = pblk_submit_io_sync(pblk, rqd);
 	if (ret) {
 		pr_err("pblk: I/O submission failed: %d\n", ret);
 		return ret;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: L2P recovery read timed out\n");
-		return -EINTR;
-	}
 	atomic_dec(&pblk->inflight_io);
-	reinit_completion(&wait);
 
 	/* At this point, the read should not fail. If it does, it is a problem
 	 * we cannot recover from here. Need FTL log.
@@ -338,13 +320,10 @@ static void pblk_end_io_recov(struct nvm_rq *rqd)
 {
 	struct pblk_pad_rq *pad_rq = rqd->private;
 	struct pblk *pblk = pad_rq->pblk;
-	struct nvm_tgt_dev *dev = pblk->dev;
 
 	pblk_up_page(pblk, rqd->ppa_list, rqd->nr_ppas);
 
-	bio_put(rqd->bio);
-	nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list);
-	pblk_free_rqd(pblk, rqd, WRITE);
+	pblk_free_rqd(pblk, rqd, PBLK_WRITE_INT);
 
 	atomic_dec(&pblk->inflight_io);
 	kref_put(&pad_rq->ref, pblk_recov_complete);
@@ -404,25 +383,21 @@ next_pad_rq:
 	ppa_list = (void *)(meta_list) + pblk_dma_meta_size;
 	dma_ppa_list = dma_meta_list + pblk_dma_meta_size;
 
-	rqd = pblk_alloc_rqd(pblk, WRITE);
-	if (IS_ERR(rqd)) {
-		ret = PTR_ERR(rqd);
-		goto fail_free_meta;
-	}
-
 	bio = pblk_bio_map_addr(pblk, data, rq_ppas, rq_len,
 						PBLK_VMALLOC_META, GFP_KERNEL);
 	if (IS_ERR(bio)) {
 		ret = PTR_ERR(bio);
-		goto fail_free_rqd;
+		goto fail_free_meta;
 	}
 
 	bio->bi_iter.bi_sector = 0; /* internal bio */
 	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
 
+	rqd = pblk_alloc_rqd(pblk, PBLK_WRITE_INT);
+
 	rqd->bio = bio;
 	rqd->opcode = NVM_OP_PWRITE;
-	rqd->flags = pblk_set_progr_mode(pblk, WRITE);
+	rqd->flags = pblk_set_progr_mode(pblk, PBLK_WRITE);
 	rqd->meta_list = meta_list;
 	rqd->nr_ppas = rq_ppas;
 	rqd->ppa_list = ppa_list;
@@ -490,8 +465,6 @@ free_rq:
 
 fail_free_bio:
 	bio_put(bio);
-fail_free_rqd:
-	pblk_free_rqd(pblk, rqd, WRITE);
 fail_free_meta:
 	nvm_dev_dma_free(dev->parent, meta_list, dma_meta_list);
 fail_free_pad:
@@ -522,7 +495,6 @@ static int pblk_recov_scan_all_oob(struct pblk *pblk, struct pblk_line *line,
 	int ret = 0;
 	int rec_round;
 	int left_ppas = pblk_calc_sec_in_line(pblk, line) - line->cur_sec;
-	DECLARE_COMPLETION_ONSTACK(wait);
 
 	ppa_list = p.ppa_list;
 	meta_list = p.meta_list;
@@ -557,8 +529,6 @@ next_rq:
 	rqd->ppa_list = ppa_list;
 	rqd->dma_ppa_list = dma_ppa_list;
 	rqd->dma_meta_list = dma_meta_list;
-	rqd->end_io = pblk_end_io_sync;
-	rqd->private = &wait;
 
 	if (pblk_io_aligned(pblk, rq_ppas))
 		rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL);
@@ -584,18 +554,13 @@ next_rq:
 				addr_to_gen_ppa(pblk, w_ptr, line->id);
 	}
 
-	ret = pblk_submit_io(pblk, rqd);
+	ret = pblk_submit_io_sync(pblk, rqd);
 	if (ret) {
 		pr_err("pblk: I/O submission failed: %d\n", ret);
 		return ret;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: L2P recovery read timed out\n");
-	}
 	atomic_dec(&pblk->inflight_io);
-	reinit_completion(&wait);
 
 	/* This should not happen since the read failed during normal recovery,
 	 * but the media works funny sometimes...
@@ -663,7 +628,6 @@ static int pblk_recov_scan_oob(struct pblk *pblk, struct pblk_line *line,
 	int i, j;
 	int ret = 0;
 	int left_ppas = pblk_calc_sec_in_line(pblk, line);
-	DECLARE_COMPLETION_ONSTACK(wait);
 
 	ppa_list = p.ppa_list;
 	meta_list = p.meta_list;
@@ -696,8 +660,6 @@ next_rq:
 	rqd->ppa_list = ppa_list;
 	rqd->dma_ppa_list = dma_ppa_list;
 	rqd->dma_meta_list = dma_meta_list;
-	rqd->end_io = pblk_end_io_sync;
-	rqd->private = &wait;
 
 	if (pblk_io_aligned(pblk, rq_ppas))
 		rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL);
@@ -723,19 +685,14 @@ next_rq:
 				addr_to_gen_ppa(pblk, paddr, line->id);
 	}
 
-	ret = pblk_submit_io(pblk, rqd);
+	ret = pblk_submit_io_sync(pblk, rqd);
 	if (ret) {
 		pr_err("pblk: I/O submission failed: %d\n", ret);
 		bio_put(bio);
 		return ret;
 	}
 
-	if (!wait_for_completion_io_timeout(&wait,
-				msecs_to_jiffies(PBLK_COMMAND_TIMEOUT_MS))) {
-		pr_err("pblk: L2P recovery read timed out\n");
-	}
 	atomic_dec(&pblk->inflight_io);
-	reinit_completion(&wait);
 
 	/* Reached the end of the written line */
 	if (rqd->error) {
@@ -785,15 +742,9 @@ static int pblk_recov_l2p_from_oob(struct pblk *pblk, struct pblk_line *line)
 	dma_addr_t dma_ppa_list, dma_meta_list;
 	int done, ret = 0;
 
-	rqd = pblk_alloc_rqd(pblk, READ);
-	if (IS_ERR(rqd))
-		return PTR_ERR(rqd);
-
 	meta_list = nvm_dev_dma_alloc(dev->parent, GFP_KERNEL, &dma_meta_list);
-	if (!meta_list) {
-		ret = -ENOMEM;
-		goto free_rqd;
-	}
+	if (!meta_list)
+		return -ENOMEM;
 
 	ppa_list = (void *)(meta_list) + pblk_dma_meta_size;
 	dma_ppa_list = dma_meta_list + pblk_dma_meta_size;
@@ -804,6 +755,8 @@ static int pblk_recov_l2p_from_oob(struct pblk *pblk, struct pblk_line *line)
 		goto free_meta_list;
 	}
 
+	rqd = pblk_alloc_rqd(pblk, PBLK_READ);
+
 	p.ppa_list = ppa_list;
 	p.meta_list = meta_list;
 	p.rqd = rqd;
@@ -832,8 +785,6 @@ out:
 	kfree(data);
 free_meta_list:
 	nvm_dev_dma_free(dev->parent, meta_list, dma_meta_list);
-free_rqd:
-	pblk_free_rqd(pblk, rqd, READ);
 
 	return ret;
 }
@@ -851,11 +802,33 @@ static void pblk_recov_line_add_ordered(struct list_head *head,
 	__list_add(&line->list, t->list.prev, &t->list);
 }
 
-struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
+static u64 pblk_line_emeta_start(struct pblk *pblk, struct pblk_line *line)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
 	struct nvm_geo *geo = &dev->geo;
 	struct pblk_line_meta *lm = &pblk->lm;
+	unsigned int emeta_secs;
+	u64 emeta_start;
+	struct ppa_addr ppa;
+	int pos;
+
+	emeta_secs = lm->emeta_sec[0];
+	emeta_start = lm->sec_per_line;
+
+	while (emeta_secs) {
+		emeta_start--;
+		ppa = addr_to_pblk_ppa(pblk, emeta_start, line->id);
+		pos = pblk_ppa_to_pos(geo, ppa);
+		if (!test_bit(pos, line->blk_bitmap))
+			emeta_secs--;
+	}
+
+	return emeta_start;
+}
+
+struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
+{
+	struct pblk_line_meta *lm = &pblk->lm;
 	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
 	struct pblk_line *line, *tline, *data_line = NULL;
 	struct pblk_smeta *smeta;
@@ -900,9 +873,9 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
 		if (le32_to_cpu(smeta_buf->header.identifier) != PBLK_MAGIC)
 			continue;
 
-		if (le16_to_cpu(smeta_buf->header.version) != 1) {
+		if (smeta_buf->header.version != SMETA_VERSION) {
 			pr_err("pblk: found incompatible line version %u\n",
-					smeta_buf->header.version);
+					le16_to_cpu(smeta_buf->header.version));
 			return ERR_PTR(-EINVAL);
 		}
 
@@ -954,15 +927,9 @@ struct pblk_line *pblk_recov_l2p(struct pblk *pblk)
 
 	/* Verify closed blocks and recover this portion of L2P table*/
 	list_for_each_entry_safe(line, tline, &recov_list, list) {
-		int off, nr_bb;
-
 		recovered_lines++;
-		/* Calculate where emeta starts based on the line bb */
-		off = lm->sec_per_line - lm->emeta_sec[0];
-		nr_bb = bitmap_weight(line->blk_bitmap, lm->blk_per_line);
-		off -= nr_bb * geo->sec_per_pl;
 
-		line->emeta_ssec = off;
+		line->emeta_ssec = pblk_line_emeta_start(pblk, line);
 		line->emeta = emeta;
 		memset(line->emeta->buf, 0, lm->emeta_len[0]);
 
@@ -987,7 +954,7 @@ next:
 			list_move_tail(&line->list, move_list);
 			spin_unlock(&l_mg->gc_lock);
 
-			mempool_free(line->map_bitmap, pblk->line_meta_pool);
+			kfree(line->map_bitmap);
 			line->map_bitmap = NULL;
 			line->smeta = NULL;
 			line->emeta = NULL;
diff --git a/drivers/lightnvm/pblk-rl.c b/drivers/lightnvm/pblk-rl.c
index 2e6a5361baf0..abae31fd434e 100644
--- a/drivers/lightnvm/pblk-rl.c
+++ b/drivers/lightnvm/pblk-rl.c
@@ -96,9 +96,11 @@ unsigned long pblk_rl_nr_free_blks(struct pblk_rl *rl)
  *
  * Only the total number of free blocks is used to configure the rate limiter.
  */
-static int pblk_rl_update_rates(struct pblk_rl *rl, unsigned long max)
+void pblk_rl_update_rates(struct pblk_rl *rl)
 {
+	struct pblk *pblk = container_of(rl, struct pblk, rl);
 	unsigned long free_blocks = pblk_rl_nr_free_blks(rl);
+	int max = rl->rb_budget;
 
 	if (free_blocks >= rl->high) {
 		rl->rb_user_max = max;
@@ -124,23 +126,18 @@ static int pblk_rl_update_rates(struct pblk_rl *rl, unsigned long max)
 		rl->rb_state = PBLK_RL_LOW;
 	}
 
-	return rl->rb_state;
+	if (rl->rb_state == (PBLK_RL_MID | PBLK_RL_LOW))
+		pblk_gc_should_start(pblk);
+	else
+		pblk_gc_should_stop(pblk);
 }
 
 void pblk_rl_free_lines_inc(struct pblk_rl *rl, struct pblk_line *line)
 {
-	struct pblk *pblk = container_of(rl, struct pblk, rl);
 	int blk_in_line = atomic_read(&line->blk_in_line);
-	int ret;
 
 	atomic_add(blk_in_line, &rl->free_blocks);
-	/* Rates will not change that often - no need to lock update */
-	ret = pblk_rl_update_rates(rl, rl->rb_budget);
-
-	if (ret == (PBLK_RL_MID | PBLK_RL_LOW))
-		pblk_gc_should_start(pblk);
-	else
-		pblk_gc_should_stop(pblk);
+	pblk_rl_update_rates(rl);
 }
 
 void pblk_rl_free_lines_dec(struct pblk_rl *rl, struct pblk_line *line)
@@ -148,19 +145,7 @@ void pblk_rl_free_lines_dec(struct pblk_rl *rl, struct pblk_line *line)
 	int blk_in_line = atomic_read(&line->blk_in_line);
 
 	atomic_sub(blk_in_line, &rl->free_blocks);
-}
-
-void pblk_gc_should_kick(struct pblk *pblk)
-{
-	struct pblk_rl *rl = &pblk->rl;
-	int ret;
-
-	/* Rates will not change that often - no need to lock update */
-	ret = pblk_rl_update_rates(rl, rl->rb_budget);
-	if (ret == (PBLK_RL_MID | PBLK_RL_LOW))
-		pblk_gc_should_start(pblk);
-	else
-		pblk_gc_should_stop(pblk);
+	pblk_rl_update_rates(rl);
 }
 
 int pblk_rl_high_thrs(struct pblk_rl *rl)
@@ -168,14 +153,9 @@ int pblk_rl_high_thrs(struct pblk_rl *rl)
 	return rl->high;
 }
 
-int pblk_rl_low_thrs(struct pblk_rl *rl)
-{
-	return rl->low;
-}
-
-int pblk_rl_sysfs_rate_show(struct pblk_rl *rl)
+int pblk_rl_max_io(struct pblk_rl *rl)
 {
-	return rl->rb_user_max;
+	return rl->rb_max_io;
 }
 
 static void pblk_rl_u_timer(unsigned long data)
@@ -214,6 +194,7 @@ void pblk_rl_init(struct pblk_rl *rl, int budget)
 	/* To start with, all buffer is available to user I/O writers */
 	rl->rb_budget = budget;
 	rl->rb_user_max = budget;
+	rl->rb_max_io = budget >> 1;
 	rl->rb_gc_max = 0;
 	rl->rb_state = PBLK_RL_HIGH;
 
diff --git a/drivers/lightnvm/pblk-sysfs.c b/drivers/lightnvm/pblk-sysfs.c
index 95fb434e2f01..cd49e8875d4e 100644
--- a/drivers/lightnvm/pblk-sysfs.c
+++ b/drivers/lightnvm/pblk-sysfs.c
@@ -253,7 +253,7 @@ static ssize_t pblk_sysfs_lines(struct pblk *pblk, char *page)
 	sz += snprintf(page + sz, PAGE_SIZE - sz,
 		"GC: full:%d, high:%d, mid:%d, low:%d, empty:%d, queue:%d\n",
 			gc_full, gc_high, gc_mid, gc_low, gc_empty,
-			atomic_read(&pblk->gc.inflight_gc));
+			atomic_read(&pblk->gc.read_inflight_gc));
 
 	sz += snprintf(page + sz, PAGE_SIZE - sz,
 		"data (%d) cur:%d, left:%d, vsc:%d, s:%d, map:%d/%d (%d)\n",
diff --git a/drivers/lightnvm/pblk-write.c b/drivers/lightnvm/pblk-write.c
index 3ad9e56d2473..6c1cafafef53 100644
--- a/drivers/lightnvm/pblk-write.c
+++ b/drivers/lightnvm/pblk-write.c
@@ -20,7 +20,6 @@
 static unsigned long pblk_end_w_bio(struct pblk *pblk, struct nvm_rq *rqd,
 				    struct pblk_c_ctx *c_ctx)
 {
-	struct nvm_tgt_dev *dev = pblk->dev;
 	struct bio *original_bio;
 	unsigned long ret;
 	int i;
@@ -33,16 +32,18 @@ static unsigned long pblk_end_w_bio(struct pblk *pblk, struct nvm_rq *rqd,
 			bio_endio(original_bio);
 	}
 
+	if (c_ctx->nr_padded)
+		pblk_bio_free_pages(pblk, rqd->bio, c_ctx->nr_valid,
+							c_ctx->nr_padded);
+
 #ifdef CONFIG_NVM_DEBUG
-	atomic_long_add(c_ctx->nr_valid, &pblk->sync_writes);
+	atomic_long_add(rqd->nr_ppas, &pblk->sync_writes);
 #endif
 
 	ret = pblk_rb_sync_advance(&pblk->rwb, c_ctx->nr_valid);
 
-	nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list);
-
 	bio_put(rqd->bio);
-	pblk_free_rqd(pblk, rqd, WRITE);
+	pblk_free_rqd(pblk, rqd, PBLK_WRITE);
 
 	return ret;
 }
@@ -107,10 +108,7 @@ static void pblk_end_w_fail(struct pblk *pblk, struct nvm_rq *rqd)
 		ppa_list = &rqd->ppa_addr;
 
 	recovery = mempool_alloc(pblk->rec_pool, GFP_ATOMIC);
-	if (!recovery) {
-		pr_err("pblk: could not allocate recovery context\n");
-		return;
-	}
+
 	INIT_LIST_HEAD(&recovery->failed);
 
 	bit = -1;
@@ -175,7 +173,6 @@ static void pblk_end_io_write(struct nvm_rq *rqd)
 static void pblk_end_io_write_meta(struct nvm_rq *rqd)
 {
 	struct pblk *pblk = rqd->private;
-	struct nvm_tgt_dev *dev = pblk->dev;
 	struct pblk_g_ctx *m_ctx = nvm_rq_to_pdu(rqd);
 	struct pblk_line *line = m_ctx->private;
 	struct pblk_emeta *emeta = line->emeta;
@@ -187,19 +184,13 @@ static void pblk_end_io_write_meta(struct nvm_rq *rqd)
 		pblk_log_write_err(pblk, rqd);
 		pr_err("pblk: metadata I/O failed. Line %d\n", line->id);
 	}
-#ifdef CONFIG_NVM_DEBUG
-	else
-		WARN_ONCE(rqd->bio->bi_status, "pblk: corrupted write error\n");
-#endif
 
 	sync = atomic_add_return(rqd->nr_ppas, &emeta->sync);
 	if (sync == emeta->nr_entries)
-		pblk_line_run_ws(pblk, line, NULL, pblk_line_close_ws,
-								pblk->close_wq);
+		pblk_gen_run_ws(pblk, line, NULL, pblk_line_close_ws,
+						GFP_ATOMIC, pblk->close_wq);
 
-	bio_put(rqd->bio);
-	nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list);
-	pblk_free_rqd(pblk, rqd, READ);
+	pblk_free_rqd(pblk, rqd, PBLK_WRITE_INT);
 
 	atomic_dec(&pblk->inflight_io);
 }
@@ -213,7 +204,7 @@ static int pblk_alloc_w_rq(struct pblk *pblk, struct nvm_rq *rqd,
 	/* Setup write request */
 	rqd->opcode = NVM_OP_PWRITE;
 	rqd->nr_ppas = nr_secs;
-	rqd->flags = pblk_set_progr_mode(pblk, WRITE);
+	rqd->flags = pblk_set_progr_mode(pblk, PBLK_WRITE);
 	rqd->private = pblk;
 	rqd->end_io = end_io;
 
@@ -229,15 +220,16 @@ static int pblk_alloc_w_rq(struct pblk *pblk, struct nvm_rq *rqd,
 }
 
 static int pblk_setup_w_rq(struct pblk *pblk, struct nvm_rq *rqd,
-			   struct pblk_c_ctx *c_ctx, struct ppa_addr *erase_ppa)
+			   struct ppa_addr *erase_ppa)
 {
 	struct pblk_line_meta *lm = &pblk->lm;
 	struct pblk_line *e_line = pblk_line_get_erase(pblk);
+	struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd);
 	unsigned int valid = c_ctx->nr_valid;
 	unsigned int padded = c_ctx->nr_padded;
 	unsigned int nr_secs = valid + padded;
 	unsigned long *lun_bitmap;
-	int ret = 0;
+	int ret;
 
 	lun_bitmap = kzalloc(lm->lun_bitmap_len, GFP_KERNEL);
 	if (!lun_bitmap)
@@ -279,7 +271,7 @@ int pblk_setup_w_rec_rq(struct pblk *pblk, struct nvm_rq *rqd,
 	pblk_map_rq(pblk, rqd, c_ctx->sentry, lun_bitmap, c_ctx->nr_valid, 0);
 
 	rqd->ppa_status = (u64)0;
-	rqd->flags = pblk_set_progr_mode(pblk, WRITE);
+	rqd->flags = pblk_set_progr_mode(pblk, PBLK_WRITE);
 
 	return ret;
 }
@@ -303,55 +295,6 @@ static int pblk_calc_secs_to_sync(struct pblk *pblk, unsigned int secs_avail,
 	return secs_to_sync;
 }
 
-static inline int pblk_valid_meta_ppa(struct pblk *pblk,
-				      struct pblk_line *meta_line,
-				      struct ppa_addr *ppa_list, int nr_ppas)
-{
-	struct nvm_tgt_dev *dev = pblk->dev;
-	struct nvm_geo *geo = &dev->geo;
-	struct pblk_line *data_line;
-	struct ppa_addr ppa, ppa_opt;
-	u64 paddr;
-	int i;
-
-	data_line = &pblk->lines[pblk_dev_ppa_to_line(ppa_list[0])];
-	paddr = pblk_lookup_page(pblk, meta_line);
-	ppa = addr_to_gen_ppa(pblk, paddr, 0);
-
-	if (test_bit(pblk_ppa_to_pos(geo, ppa), data_line->blk_bitmap))
-		return 1;
-
-	/* Schedule a metadata I/O that is half the distance from the data I/O
-	 * with regards to the number of LUNs forming the pblk instance. This
-	 * balances LUN conflicts across every I/O.
-	 *
-	 * When the LUN configuration changes (e.g., due to GC), this distance
-	 * can align, which would result on a LUN deadlock. In this case, modify
-	 * the distance to not be optimal, but allow metadata I/Os to succeed.
-	 */
-	ppa_opt = addr_to_gen_ppa(pblk, paddr + data_line->meta_distance, 0);
-	if (unlikely(ppa_opt.ppa == ppa.ppa)) {
-		data_line->meta_distance--;
-		return 0;
-	}
-
-	for (i = 0; i < nr_ppas; i += pblk->min_write_pgs)
-		if (ppa_list[i].g.ch == ppa_opt.g.ch &&
-					ppa_list[i].g.lun == ppa_opt.g.lun)
-			return 1;
-
-	if (test_bit(pblk_ppa_to_pos(geo, ppa_opt), data_line->blk_bitmap)) {
-		for (i = 0; i < nr_ppas; i += pblk->min_write_pgs)
-			if (ppa_list[i].g.ch == ppa.g.ch &&
-						ppa_list[i].g.lun == ppa.g.lun)
-				return 0;
-
-		return 1;
-	}
-
-	return 0;
-}
-
 int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line)
 {
 	struct nvm_tgt_dev *dev = pblk->dev;
@@ -370,11 +313,8 @@ int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line)
 	int i, j;
 	int ret;
 
-	rqd = pblk_alloc_rqd(pblk, READ);
-	if (IS_ERR(rqd)) {
-		pr_err("pblk: cannot allocate write req.\n");
-		return PTR_ERR(rqd);
-	}
+	rqd = pblk_alloc_rqd(pblk, PBLK_WRITE_INT);
+
 	m_ctx = nvm_rq_to_pdu(rqd);
 	m_ctx->private = meta_line;
 
@@ -407,8 +347,6 @@ int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line)
 	if (emeta->mem >= lm->emeta_len[0]) {
 		spin_lock(&l_mg->close_lock);
 		list_del(&meta_line->list);
-		WARN(!bitmap_full(meta_line->map_bitmap, lm->sec_per_line),
-				"pblk: corrupt meta line %d\n", meta_line->id);
 		spin_unlock(&l_mg->close_lock);
 	}
 
@@ -428,18 +366,51 @@ fail_rollback:
 	pblk_dealloc_page(pblk, meta_line, rq_ppas);
 	list_add(&meta_line->list, &meta_line->list);
 	spin_unlock(&l_mg->close_lock);
-
-	nvm_dev_dma_free(dev->parent, rqd->meta_list, rqd->dma_meta_list);
 fail_free_bio:
-	if (likely(l_mg->emeta_alloc_type == PBLK_VMALLOC_META))
-		bio_put(bio);
+	bio_put(bio);
 fail_free_rqd:
-	pblk_free_rqd(pblk, rqd, READ);
+	pblk_free_rqd(pblk, rqd, PBLK_WRITE_INT);
 	return ret;
 }
 
-static int pblk_sched_meta_io(struct pblk *pblk, struct ppa_addr *prev_list,
-			       int prev_n)
+static inline bool pblk_valid_meta_ppa(struct pblk *pblk,
+				       struct pblk_line *meta_line,
+				       struct nvm_rq *data_rqd)
+{
+	struct nvm_tgt_dev *dev = pblk->dev;
+	struct nvm_geo *geo = &dev->geo;
+	struct pblk_c_ctx *data_c_ctx = nvm_rq_to_pdu(data_rqd);
+	struct pblk_line *data_line = pblk_line_get_data(pblk);
+	struct ppa_addr ppa, ppa_opt;
+	u64 paddr;
+	int pos_opt;
+
+	/* Schedule a metadata I/O that is half the distance from the data I/O
+	 * with regards to the number of LUNs forming the pblk instance. This
+	 * balances LUN conflicts across every I/O.
+	 *
+	 * When the LUN configuration changes (e.g., due to GC), this distance
+	 * can align, which would result on metadata and data I/Os colliding. In
+	 * this case, modify the distance to not be optimal, but move the
+	 * optimal in the right direction.
+	 */
+	paddr = pblk_lookup_page(pblk, meta_line);
+	ppa = addr_to_gen_ppa(pblk, paddr, 0);
+	ppa_opt = addr_to_gen_ppa(pblk, paddr + data_line->meta_distance, 0);
+	pos_opt = pblk_ppa_to_pos(geo, ppa_opt);
+
+	if (test_bit(pos_opt, data_c_ctx->lun_bitmap) ||
+				test_bit(pos_opt, data_line->blk_bitmap))
+		return true;
+
+	if (unlikely(pblk_ppa_comp(ppa_opt, ppa)))
+		data_line->meta_distance--;
+
+	return false;
+}
+
+static struct pblk_line *pblk_should_submit_meta_io(struct pblk *pblk,
+						    struct nvm_rq *data_rqd)
 {
 	struct pblk_line_meta *lm = &pblk->lm;
 	struct pblk_line_mgmt *l_mg = &pblk->l_mg;
@@ -449,57 +420,45 @@ static int pblk_sched_meta_io(struct pblk *pblk, struct ppa_addr *prev_list,
 retry:
 	if (list_empty(&l_mg->emeta_list)) {
 		spin_unlock(&l_mg->close_lock);
-		return 0;
+		return NULL;
 	}
 	meta_line = list_first_entry(&l_mg->emeta_list, struct pblk_line, list);
-	if (bitmap_full(meta_line->map_bitmap, lm->sec_per_line))
+	if (meta_line->emeta->mem >= lm->emeta_len[0])
 		goto retry;
 	spin_unlock(&l_mg->close_lock);
 
-	if (!pblk_valid_meta_ppa(pblk, meta_line, prev_list, prev_n))
-		return 0;
+	if (!pblk_valid_meta_ppa(pblk, meta_line, data_rqd))
+		return NULL;
 
-	return pblk_submit_meta_io(pblk, meta_line);
+	return meta_line;
 }
 
 static int pblk_submit_io_set(struct pblk *pblk, struct nvm_rq *rqd)
 {
-	struct pblk_c_ctx *c_ctx = nvm_rq_to_pdu(rqd);
 	struct ppa_addr erase_ppa;
+	struct pblk_line *meta_line;
 	int err;
 
 	ppa_set_empty(&erase_ppa);
 
 	/* Assign lbas to ppas and populate request structure */
-	err = pblk_setup_w_rq(pblk, rqd, c_ctx, &erase_ppa);
+	err = pblk_setup_w_rq(pblk, rqd, &erase_ppa);
 	if (err) {
 		pr_err("pblk: could not setup write request: %d\n", err);
 		return NVM_IO_ERR;
 	}
 
-	if (likely(ppa_empty(erase_ppa))) {
-		/* Submit metadata write for previous data line */
-		err = pblk_sched_meta_io(pblk, rqd->ppa_list, rqd->nr_ppas);
-		if (err) {
-			pr_err("pblk: metadata I/O submission failed: %d", err);
-			return NVM_IO_ERR;
-		}
+	meta_line = pblk_should_submit_meta_io(pblk, rqd);
 
-		/* Submit data write for current data line */
-		err = pblk_submit_io(pblk, rqd);
-		if (err) {
-			pr_err("pblk: data I/O submission failed: %d\n", err);
-			return NVM_IO_ERR;
-		}
-	} else {
-		/* Submit data write for current data line */
-		err = pblk_submit_io(pblk, rqd);
-		if (err) {
-			pr_err("pblk: data I/O submission failed: %d\n", err);
-			return NVM_IO_ERR;
-		}
+	/* Submit data write for current data line */
+	err = pblk_submit_io(pblk, rqd);
+	if (err) {
+		pr_err("pblk: data I/O submission failed: %d\n", err);
+		return NVM_IO_ERR;
+	}
 
-		/* Submit available erase for next data line */
+	if (!ppa_empty(erase_ppa)) {
+		/* Submit erase for next data line */
 		if (pblk_blk_erase_async(pblk, erase_ppa)) {
 			struct pblk_line *e_line = pblk_line_get_erase(pblk);
 			struct nvm_tgt_dev *dev = pblk->dev;
@@ -512,6 +471,15 @@ static int pblk_submit_io_set(struct pblk *pblk, struct nvm_rq *rqd)
 		}
 	}
 
+	if (meta_line) {
+		/* Submit metadata write for previous data line */
+		err = pblk_submit_meta_io(pblk, meta_line);
+		if (err) {
+			pr_err("pblk: metadata I/O submission failed: %d", err);
+			return NVM_IO_ERR;
+		}
+	}
+
 	return NVM_IO_OK;
 }
 
@@ -521,7 +489,8 @@ static void pblk_free_write_rqd(struct pblk *pblk, struct nvm_rq *rqd)
 	struct bio *bio = rqd->bio;
 
 	if (c_ctx->nr_padded)
-		pblk_bio_free_pages(pblk, bio, rqd->nr_ppas, c_ctx->nr_padded);
+		pblk_bio_free_pages(pblk, bio, c_ctx->nr_valid,
+							c_ctx->nr_padded);
 }
 
 static int pblk_submit_write(struct pblk *pblk)
@@ -543,31 +512,24 @@ static int pblk_submit_write(struct pblk *pblk)
 	if (!secs_to_flush && secs_avail < pblk->min_write_pgs)
 		return 1;
 
-	rqd = pblk_alloc_rqd(pblk, WRITE);
-	if (IS_ERR(rqd)) {
-		pr_err("pblk: cannot allocate write req.\n");
-		return 1;
-	}
-
-	bio = bio_alloc(GFP_KERNEL, pblk->max_write_pgs);
-	if (!bio) {
-		pr_err("pblk: cannot allocate write bio\n");
-		goto fail_free_rqd;
-	}
-	bio->bi_iter.bi_sector = 0; /* internal bio */
-	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
-	rqd->bio = bio;
-
 	secs_to_sync = pblk_calc_secs_to_sync(pblk, secs_avail, secs_to_flush);
 	if (secs_to_sync > pblk->max_write_pgs) {
 		pr_err("pblk: bad buffer sync calculation\n");
-		goto fail_put_bio;
+		return 1;
 	}
 
 	secs_to_com = (secs_to_sync > secs_avail) ? secs_avail : secs_to_sync;
 	pos = pblk_rb_read_commit(&pblk->rwb, secs_to_com);
 
-	if (pblk_rb_read_to_bio(&pblk->rwb, rqd, bio, pos, secs_to_sync,
+	bio = bio_alloc(GFP_KERNEL, secs_to_sync);
+
+	bio->bi_iter.bi_sector = 0; /* internal bio */
+	bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
+
+	rqd = pblk_alloc_rqd(pblk, PBLK_WRITE);
+	rqd->bio = bio;
+
+	if (pblk_rb_read_to_bio(&pblk->rwb, rqd, pos, secs_to_sync,
 								secs_avail)) {
 		pr_err("pblk: corrupted write bio\n");
 		goto fail_put_bio;
@@ -586,8 +548,7 @@ fail_free_bio:
 	pblk_free_write_rqd(pblk, rqd);
 fail_put_bio:
 	bio_put(bio);
-fail_free_rqd:
-	pblk_free_rqd(pblk, rqd, WRITE);
+	pblk_free_rqd(pblk, rqd, PBLK_WRITE);
 
 	return 1;
 }
diff --git a/drivers/lightnvm/pblk.h b/drivers/lightnvm/pblk.h
index 67e623bd5c2d..90961033a79f 100644
--- a/drivers/lightnvm/pblk.h
+++ b/drivers/lightnvm/pblk.h
@@ -40,10 +40,6 @@
 #define PBLK_MAX_REQ_ADDRS (64)
 #define PBLK_MAX_REQ_ADDRS_PW (6)
 
-#define PBLK_WS_POOL_SIZE (128)
-#define PBLK_META_POOL_SIZE (128)
-#define PBLK_READ_REQ_POOL_SIZE (1024)
-
 #define PBLK_NR_CLOSE_JOBS (4)
 
 #define PBLK_CACHE_NAME_LEN (DISK_NAME_LEN + 16)
@@ -59,7 +55,15 @@
 		for ((i) = 0, rlun = &(pblk)->luns[0]; \
 			(i) < (pblk)->nr_luns; (i)++, rlun = &(pblk)->luns[(i)])
 
-#define ERASE 2 /* READ = 0, WRITE = 1 */
+/* Static pool sizes */
+#define PBLK_GEN_WS_POOL_SIZE (2)
+
+enum {
+	PBLK_READ		= READ,
+	PBLK_WRITE		= WRITE,/* Write from write buffer */
+	PBLK_WRITE_INT,			/* Internal write - no write buffer */
+	PBLK_ERASE,
+};
 
 enum {
 	/* IO Types */
@@ -95,6 +99,7 @@ enum {
 };
 
 #define pblk_dma_meta_size (sizeof(struct pblk_sec_meta) * PBLK_MAX_REQ_ADDRS)
+#define pblk_dma_ppa_size (sizeof(u64) * PBLK_MAX_REQ_ADDRS)
 
 /* write buffer completion context */
 struct pblk_c_ctx {
@@ -106,9 +111,10 @@ struct pblk_c_ctx {
 	unsigned int nr_padded;
 };
 
-/* generic context */
+/* read context */
 struct pblk_g_ctx {
 	void *private;
+	u64 lba;
 };
 
 /* Pad context */
@@ -207,6 +213,7 @@ struct pblk_lun {
 struct pblk_gc_rq {
 	struct pblk_line *line;
 	void *data;
+	u64 paddr_list[PBLK_MAX_REQ_ADDRS];
 	u64 lba_list[PBLK_MAX_REQ_ADDRS];
 	int nr_secs;
 	int secs_to_gc;
@@ -231,7 +238,10 @@ struct pblk_gc {
 	struct timer_list gc_timer;
 
 	struct semaphore gc_sem;
-	atomic_t inflight_gc;
+	atomic_t read_inflight_gc; /* Number of lines with inflight GC reads */
+	atomic_t pipeline_gc;	   /* Number of lines in the GC pipeline -
+				    * started reads to finished writes
+				    */
 	int w_entries;
 
 	struct list_head w_list;
@@ -267,6 +277,7 @@ struct pblk_rl {
 	int rb_gc_max;		/* Max buffer entries available for GC I/O */
 	int rb_gc_rsv;		/* Reserved buffer entries for GC I/O */
 	int rb_state;		/* Rate-limiter current state */
+	int rb_max_io;		/* Maximum size for an I/O giving the config */
 
 	atomic_t rb_user_cnt;	/* User I/O buffer counter */
 	atomic_t rb_gc_cnt;	/* GC I/O buffer counter */
@@ -310,6 +321,7 @@ enum {
 };
 
 #define PBLK_MAGIC 0x70626c6b /*pblk*/
+#define SMETA_VERSION cpu_to_le16(1)
 
 struct line_header {
 	__le32 crc;
@@ -618,15 +630,16 @@ struct pblk {
 
 	struct list_head compl_list;
 
-	mempool_t *page_pool;
-	mempool_t *line_ws_pool;
+	mempool_t *page_bio_pool;
+	mempool_t *gen_ws_pool;
 	mempool_t *rec_pool;
-	mempool_t *g_rq_pool;
+	mempool_t *r_rq_pool;
 	mempool_t *w_rq_pool;
-	mempool_t *line_meta_pool;
+	mempool_t *e_rq_pool;
 
 	struct workqueue_struct *close_wq;
 	struct workqueue_struct *bb_wq;
+	struct workqueue_struct *r_end_wq;
 
 	struct timer_list wtimer;
 
@@ -657,15 +670,15 @@ int pblk_rb_may_write_gc(struct pblk_rb *rb, unsigned int nr_entries,
 void pblk_rb_write_entry_user(struct pblk_rb *rb, void *data,
 			      struct pblk_w_ctx w_ctx, unsigned int pos);
 void pblk_rb_write_entry_gc(struct pblk_rb *rb, void *data,
-			    struct pblk_w_ctx w_ctx, struct pblk_line *gc_line,
-			    unsigned int pos);
+			    struct pblk_w_ctx w_ctx, struct pblk_line *line,
+			    u64 paddr, unsigned int pos);
 struct pblk_w_ctx *pblk_rb_w_ctx(struct pblk_rb *rb, unsigned int pos);
 void pblk_rb_flush(struct pblk_rb *rb);
 
 void pblk_rb_sync_l2p(struct pblk_rb *rb);
 unsigned int pblk_rb_read_to_bio(struct pblk_rb *rb, struct nvm_rq *rqd,
-				 struct bio *bio, unsigned int pos,
-				 unsigned int nr_entries, unsigned int count);
+				 unsigned int pos, unsigned int nr_entries,
+				 unsigned int count);
 unsigned int pblk_rb_read_to_bio_list(struct pblk_rb *rb, struct bio *bio,
 				      struct list_head *list,
 				      unsigned int max);
@@ -692,24 +705,23 @@ ssize_t pblk_rb_sysfs(struct pblk_rb *rb, char *buf);
 /*
  * pblk core
  */
-struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int rw);
+struct nvm_rq *pblk_alloc_rqd(struct pblk *pblk, int type);
+void pblk_free_rqd(struct pblk *pblk, struct nvm_rq *rqd, int type);
 void pblk_set_sec_per_write(struct pblk *pblk, int sec_per_write);
 int pblk_setup_w_rec_rq(struct pblk *pblk, struct nvm_rq *rqd,
 			struct pblk_c_ctx *c_ctx);
-void pblk_free_rqd(struct pblk *pblk, struct nvm_rq *rqd, int rw);
-void pblk_wait_for_meta(struct pblk *pblk);
-struct ppa_addr pblk_get_lba_map(struct pblk *pblk, sector_t lba);
 void pblk_discard(struct pblk *pblk, struct bio *bio);
 void pblk_log_write_err(struct pblk *pblk, struct nvm_rq *rqd);
 void pblk_log_read_err(struct pblk *pblk, struct nvm_rq *rqd);
 int pblk_submit_io(struct pblk *pblk, struct nvm_rq *rqd);
+int pblk_submit_io_sync(struct pblk *pblk, struct nvm_rq *rqd);
 int pblk_submit_meta_io(struct pblk *pblk, struct pblk_line *meta_line);
 struct bio *pblk_bio_map_addr(struct pblk *pblk, void *data,
 			      unsigned int nr_secs, unsigned int len,
 			      int alloc_type, gfp_t gfp_mask);
 struct pblk_line *pblk_line_get(struct pblk *pblk);
 struct pblk_line *pblk_line_get_first_data(struct pblk *pblk);
-void pblk_line_replace_data(struct pblk *pblk);
+struct pblk_line *pblk_line_replace_data(struct pblk *pblk);
 int pblk_line_recov_alloc(struct pblk *pblk, struct pblk_line *line);
 void pblk_line_recov_close(struct pblk *pblk, struct pblk_line *line);
 struct pblk_line *pblk_line_get_data(struct pblk *pblk);
@@ -719,19 +731,18 @@ int pblk_line_is_full(struct pblk_line *line);
 void pblk_line_free(struct pblk *pblk, struct pblk_line *line);
 void pblk_line_close_meta(struct pblk *pblk, struct pblk_line *line);
 void pblk_line_close(struct pblk *pblk, struct pblk_line *line);
-void pblk_line_close_meta_sync(struct pblk *pblk);
 void pblk_line_close_ws(struct work_struct *work);
 void pblk_pipeline_stop(struct pblk *pblk);
-void pblk_line_mark_bb(struct work_struct *work);
-void pblk_line_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv,
-		      void (*work)(struct work_struct *),
-		      struct workqueue_struct *wq);
+void pblk_gen_run_ws(struct pblk *pblk, struct pblk_line *line, void *priv,
+		     void (*work)(struct work_struct *), gfp_t gfp_mask,
+		     struct workqueue_struct *wq);
 u64 pblk_line_smeta_start(struct pblk *pblk, struct pblk_line *line);
 int pblk_line_read_smeta(struct pblk *pblk, struct pblk_line *line);
 int pblk_line_read_emeta(struct pblk *pblk, struct pblk_line *line,
 			 void *emeta_buf);
 int pblk_blk_erase_async(struct pblk *pblk, struct ppa_addr erase_ppa);
 void pblk_line_put(struct kref *ref);
+void pblk_line_put_wq(struct kref *ref);
 struct list_head *pblk_line_gc_list(struct pblk *pblk, struct pblk_line *line);
 u64 pblk_lookup_page(struct pblk *pblk, struct pblk_line *line);
 void pblk_dealloc_page(struct pblk *pblk, struct pblk_line *line, int nr_secs);
@@ -745,7 +756,6 @@ void pblk_down_rq(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas,
 void pblk_down_page(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas);
 void pblk_up_rq(struct pblk *pblk, struct ppa_addr *ppa_list, int nr_ppas,
 		unsigned long *lun_bitmap);
-void pblk_end_bio_sync(struct bio *bio);
 void pblk_end_io_sync(struct nvm_rq *rqd);
 int pblk_bio_add_pages(struct pblk *pblk, struct bio *bio, gfp_t flags,
 		       int nr_pages);
@@ -760,7 +770,7 @@ void pblk_update_map_cache(struct pblk *pblk, sector_t lba,
 void pblk_update_map_dev(struct pblk *pblk, sector_t lba,
 			 struct ppa_addr ppa, struct ppa_addr entry_line);
 int pblk_update_map_gc(struct pblk *pblk, sector_t lba, struct ppa_addr ppa,
-		       struct pblk_line *gc_line);
+		       struct pblk_line *gc_line, u64 paddr);
 void pblk_lookup_l2p_rand(struct pblk *pblk, struct ppa_addr *ppas,
 			  u64 *lba_list, int nr_secs);
 void pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas,
@@ -771,9 +781,7 @@ void pblk_lookup_l2p_seq(struct pblk *pblk, struct ppa_addr *ppas,
  */
 int pblk_write_to_cache(struct pblk *pblk, struct bio *bio,
 			unsigned long flags);
-int pblk_write_gc_to_cache(struct pblk *pblk, void *data, u64 *lba_list,
-			   unsigned int nr_entries, unsigned int nr_rec_entries,
-			   struct pblk_line *gc_line, unsigned long flags);
+int pblk_write_gc_to_cache(struct pblk *pblk, struct pblk_gc_rq *gc_rq);
 
 /*
  * pblk map
@@ -797,9 +805,7 @@ void pblk_write_should_kick(struct pblk *pblk);
  */
 extern struct bio_set *pblk_bio_set;
 int pblk_submit_read(struct pblk *pblk, struct bio *bio);
-int pblk_submit_read_gc(struct pblk *pblk, u64 *lba_list, void *data,
-			unsigned int nr_secs, unsigned int *secs_to_gc,
-			struct pblk_line *line);
+int pblk_submit_read_gc(struct pblk *pblk, struct pblk_gc_rq *gc_rq);
 /*
  * pblk recovery
  */
@@ -815,7 +821,7 @@ int pblk_recov_setup_rq(struct pblk *pblk, struct pblk_c_ctx *c_ctx,
  * pblk gc
  */
 #define PBLK_GC_MAX_READERS 8	/* Max number of outstanding GC reader jobs */
-#define PBLK_GC_W_QD 128	/* Queue depth for inflight GC write I/Os */
+#define PBLK_GC_RQ_QD 128	/* Queue depth for inflight GC requests */
 #define PBLK_GC_L_QD 4		/* Queue depth for inflight GC lines */
 #define PBLK_GC_RSV_LINE 1	/* Reserved lines for GC */
 
@@ -824,7 +830,7 @@ void pblk_gc_exit(struct pblk *pblk);
 void pblk_gc_should_start(struct pblk *pblk);
 void pblk_gc_should_stop(struct pblk *pblk);
 void pblk_gc_should_kick(struct pblk *pblk);
-void pblk_gc_kick(struct pblk *pblk);
+void pblk_gc_free_full_lines(struct pblk *pblk);
 void pblk_gc_sysfs_state_show(struct pblk *pblk, int *gc_enabled,
 			      int *gc_active);
 int pblk_gc_sysfs_force(struct pblk *pblk, int force);
@@ -834,8 +840,8 @@ int pblk_gc_sysfs_force(struct pblk *pblk, int force);
  */
 void pblk_rl_init(struct pblk_rl *rl, int budget);
 void pblk_rl_free(struct pblk_rl *rl);
+void pblk_rl_update_rates(struct pblk_rl *rl);
 int pblk_rl_high_thrs(struct pblk_rl *rl);
-int pblk_rl_low_thrs(struct pblk_rl *rl);
 unsigned long pblk_rl_nr_free_blks(struct pblk_rl *rl);
 int pblk_rl_user_may_insert(struct pblk_rl *rl, int nr_entries);
 void pblk_rl_inserted(struct pblk_rl *rl, int nr_entries);
@@ -843,10 +849,9 @@ void pblk_rl_user_in(struct pblk_rl *rl, int nr_entries);
 int pblk_rl_gc_may_insert(struct pblk_rl *rl, int nr_entries);
 void pblk_rl_gc_in(struct pblk_rl *rl, int nr_entries);
 void pblk_rl_out(struct pblk_rl *rl, int nr_user, int nr_gc);
-int pblk_rl_sysfs_rate_show(struct pblk_rl *rl);
+int pblk_rl_max_io(struct pblk_rl *rl);
 void pblk_rl_free_lines_inc(struct pblk_rl *rl, struct pblk_line *line);
 void pblk_rl_free_lines_dec(struct pblk_rl *rl, struct pblk_line *line);
-void pblk_rl_set_space_limit(struct pblk_rl *rl, int entries_left);
 int pblk_rl_is_limit(struct pblk_rl *rl);
 
 /*
@@ -892,13 +897,7 @@ static inline void *emeta_to_vsc(struct pblk *pblk, struct line_emeta *emeta)
 
 static inline int pblk_line_vsc(struct pblk_line *line)
 {
-	int vsc;
-
-	spin_lock(&line->lock);
-	vsc = le32_to_cpu(*line->vsc);
-	spin_unlock(&line->lock);
-
-	return vsc;
+	return le32_to_cpu(*line->vsc);
 }
 
 #define NVM_MEM_PAGE_WRITE (8)
@@ -1140,7 +1139,7 @@ static inline int pblk_set_progr_mode(struct pblk *pblk, int type)
 
 	flags = geo->plane_mode >> 1;
 
-	if (type == WRITE)
+	if (type == PBLK_WRITE)
 		flags |= NVM_IO_SCRAMBLE_ENABLE;
 
 	return flags;
@@ -1200,7 +1199,6 @@ static inline void pblk_print_failed_rqd(struct pblk *pblk, struct nvm_rq *rqd,
 
 	pr_err("error:%d, ppa_status:%llx\n", error, rqd->ppa_status);
 }
-#endif
 
 static inline int pblk_boundary_ppa_checks(struct nvm_tgt_dev *tgt_dev,
 				       struct ppa_addr *ppas, int nr_ppas)
@@ -1221,14 +1219,50 @@ static inline int pblk_boundary_ppa_checks(struct nvm_tgt_dev *tgt_dev,
 				ppa->g.sec < geo->sec_per_pg)
 			continue;
 
-#ifdef CONFIG_NVM_DEBUG
 		print_ppa(ppa, "boundary", i);
-#endif
+
 		return 1;
 	}
 	return 0;
 }
 
+static inline int pblk_check_io(struct pblk *pblk, struct nvm_rq *rqd)
+{
+	struct nvm_tgt_dev *dev = pblk->dev;
+	struct ppa_addr *ppa_list;
+
+	ppa_list = (rqd->nr_ppas > 1) ? rqd->ppa_list : &rqd->ppa_addr;
+
+	if (pblk_boundary_ppa_checks(dev, ppa_list, rqd->nr_ppas)) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	if (rqd->opcode == NVM_OP_PWRITE) {
+		struct pblk_line *line;
+		struct ppa_addr ppa;
+		int i;
+
+		for (i = 0; i < rqd->nr_ppas; i++) {
+			ppa = ppa_list[i];
+			line = &pblk->lines[pblk_dev_ppa_to_line(ppa)];
+
+			spin_lock(&line->lock);
+			if (line->state != PBLK_LINESTATE_OPEN) {
+				pr_err("pblk: bad ppa: line:%d,state:%d\n",
+							line->id, line->state);
+				WARN_ON(1);
+				spin_unlock(&line->lock);
+				return -EINVAL;
+			}
+			spin_unlock(&line->lock);
+		}
+	}
+
+	return 0;
+}
+#endif
+
 static inline int pblk_boundary_paddr_checks(struct pblk *pblk, u64 paddr)
 {
 	struct pblk_line_meta *lm = &pblk->lm;
diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index 516eb65bcacc..ee803638e595 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Macintosh-specific device drivers.
 #
diff --git a/drivers/macintosh/adb-iop.c b/drivers/macintosh/adb-iop.c
index f5f4da3d0b67..15db69d8ba69 100644
--- a/drivers/macintosh/adb-iop.c
+++ b/drivers/macintosh/adb-iop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * I/O Processor (IOP) ADB Driver
  * Written and (C) 1999 by Joshua M. Thompson (funaho@jurai.org)
@@ -29,8 +30,6 @@
 
 /*#define DEBUG_ADB_IOP*/
 
-extern void iop_ism_irq(int, void *);
-
 static struct adb_request *current_req;
 static struct adb_request *last_req;
 #if 0
@@ -265,7 +264,7 @@ int adb_iop_autopoll(int devs)
 void adb_iop_poll(void)
 {
 	if (adb_iop_state == idle) adb_iop_start();
-	iop_ism_irq(0, (void *) ADB_IOP);
+	iop_ism_irq_poll(ADB_IOP);
 }
 
 int adb_iop_reset_bus(void)
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 039dc8285fc5..289800b5235d 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device driver for the Apple Desktop Bus
  * and the /dev/adb device on macintoshes.
diff --git a/drivers/macintosh/adbhid.c b/drivers/macintosh/adbhid.c
index 09d72bb00d12..e091193104f7 100644
--- a/drivers/macintosh/adbhid.c
+++ b/drivers/macintosh/adbhid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/macintosh/adbhid.c
  *
diff --git a/drivers/macintosh/ams/ams.h b/drivers/macintosh/ams/ams.h
index 90f094d45450..fe8d596f9845 100644
--- a/drivers/macintosh/ams/ams.h
+++ b/drivers/macintosh/ams/ams.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/i2c.h>
 #include <linux/input-polldev.h>
 #include <linux/kthread.h>
diff --git a/drivers/macintosh/ans-lcd.c b/drivers/macintosh/ans-lcd.c
index 281fa9e6fc1f..1de81d922d8a 100644
--- a/drivers/macintosh/ans-lcd.c
+++ b/drivers/macintosh/ans-lcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * /dev/lcd driver for Apple Network Servers.
  */
diff --git a/drivers/macintosh/ans-lcd.h b/drivers/macintosh/ans-lcd.h
index d795b9fd2db6..f0a6e4c68557 100644
--- a/drivers/macintosh/ans-lcd.h
+++ b/drivers/macintosh/ans-lcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PPC_ANS_LCD_H
 #define _PPC_ANS_LCD_H
 
diff --git a/drivers/macintosh/macio-adb.c b/drivers/macintosh/macio-adb.c
index 87de8d9bcfad..9a6223add30e 100644
--- a/drivers/macintosh/macio-adb.c
+++ b/drivers/macintosh/macio-adb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the ADB controller in the Mac I/O (Hydra) chip.
  */
diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
index 281f5345661e..ca4fcffe454b 100644
--- a/drivers/macintosh/macio_sysfs.c
+++ b/drivers/macintosh/macio_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/stat.h>
 #include <asm/macio.h>
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index ea9bdc85a21d..899ec1f4c833 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -103,7 +103,7 @@ static DEFINE_MUTEX(smu_part_access);
 static int smu_irq_inited;
 static unsigned long smu_cmdbuf_abs;
 
-static void smu_i2c_retry(unsigned long data);
+static void smu_i2c_retry(struct timer_list *t);
 
 /*
  * SMU driver low level stuff
@@ -582,9 +582,7 @@ static int smu_late_init(void)
 	if (!smu)
 		return 0;
 
-	init_timer(&smu->i2c_timer);
-	smu->i2c_timer.function = smu_i2c_retry;
-	smu->i2c_timer.data = (unsigned long)smu;
+	timer_setup(&smu->i2c_timer, smu_i2c_retry, 0);
 
 	if (smu->db_node) {
 		smu->db_irq = irq_of_parse_and_map(smu->db_node, 0);
@@ -755,7 +753,7 @@ static void smu_i2c_complete_command(struct smu_i2c_cmd *cmd, int fail)
 }
 
 
-static void smu_i2c_retry(unsigned long data)
+static void smu_i2c_retry(struct timer_list *unused)
 {
 	struct smu_i2c_cmd	*cmd = smu->cmd_i2c_cur;
 
@@ -795,7 +793,7 @@ static void smu_i2c_low_completion(struct smu_cmd *scmd, void *misc)
 		BUG_ON(cmd != smu->cmd_i2c_cur);
 		if (!smu_irq_inited) {
 			mdelay(5);
-			smu_i2c_retry(0);
+			smu_i2c_retry(NULL);
 			return;
 		}
 		mod_timer(&smu->i2c_timer, jiffies + msecs_to_jiffies(5));
diff --git a/drivers/macintosh/via-cuda.c b/drivers/macintosh/via-cuda.c
index 147da4edd021..98dd702eb867 100644
--- a/drivers/macintosh/via-cuda.c
+++ b/drivers/macintosh/via-cuda.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device driver for the Cuda and Egret system controllers found on PowerMacs
  * and 68k Macs.
diff --git a/drivers/macintosh/via-macii.c b/drivers/macintosh/via-macii.c
index 415c145c8299..4ba06a1695ea 100644
--- a/drivers/macintosh/via-macii.c
+++ b/drivers/macintosh/via-macii.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device driver for the via ADB on (many) Mac II-class machines
  *
diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c
index 6f68537c93ce..89ed51571b62 100644
--- a/drivers/macintosh/via-pmu-backlight.c
+++ b/drivers/macintosh/via-pmu-backlight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Backlight code for via-pmu
  *
diff --git a/drivers/macintosh/via-pmu-event.h b/drivers/macintosh/via-pmu-event.h
index 72c54de408e8..5e52109eb9a6 100644
--- a/drivers/macintosh/via-pmu-event.h
+++ b/drivers/macintosh/via-pmu-event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __VIA_PMU_EVENT_H
 #define __VIA_PMU_EVENT_H
 
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index cce99f72e4ae..c4c2b3b85ebc 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device driver for the via-pmu on Apple Powermacs.
  *
diff --git a/drivers/macintosh/via-pmu68k.c b/drivers/macintosh/via-pmu68k.c
index a411c5cb77a1..25465fb91ec9 100644
--- a/drivers/macintosh/via-pmu68k.c
+++ b/drivers/macintosh/via-pmu68k.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device driver for the PMU on 68K-based Apple PowerBooks
  *
diff --git a/drivers/mailbox/Makefile b/drivers/mailbox/Makefile
index d54e41206e17..4896f8dcae95 100644
--- a/drivers/mailbox/Makefile
+++ b/drivers/mailbox/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Generic MAILBOX API
 
 obj-$(CONFIG_MAILBOX)		+= mailbox.o
diff --git a/drivers/mailbox/mailbox-altera.c b/drivers/mailbox/mailbox-altera.c
index bb682c926b0a..bcb29df9549e 100644
--- a/drivers/mailbox/mailbox-altera.c
+++ b/drivers/mailbox/mailbox-altera.c
@@ -57,6 +57,7 @@ struct altera_mbox {
 
 	/* If the controller supports only RX polling mode */
 	struct timer_list rxpoll_timer;
+	struct mbox_chan *chan;
 };
 
 static struct altera_mbox *mbox_chan_to_altera_mbox(struct mbox_chan *chan)
@@ -138,12 +139,11 @@ static void altera_mbox_rx_data(struct mbox_chan *chan)
 	}
 }
 
-static void altera_mbox_poll_rx(unsigned long data)
+static void altera_mbox_poll_rx(struct timer_list *t)
 {
-	struct mbox_chan *chan = (struct mbox_chan *)data;
-	struct altera_mbox *mbox = mbox_chan_to_altera_mbox(chan);
+	struct altera_mbox *mbox = from_timer(mbox, t, rxpoll_timer);
 
-	altera_mbox_rx_data(chan);
+	altera_mbox_rx_data(mbox->chan);
 
 	mod_timer(&mbox->rxpoll_timer,
 		  jiffies + msecs_to_jiffies(MBOX_POLLING_MS));
@@ -206,8 +206,8 @@ static int altera_mbox_startup_receiver(struct mbox_chan *chan)
 
 polling:
 	/* Setup polling timer */
-	setup_timer(&mbox->rxpoll_timer, altera_mbox_poll_rx,
-		    (unsigned long)chan);
+	mbox->chan = chan;
+	timer_setup(&mbox->rxpoll_timer, altera_mbox_poll_rx, 0);
 	mod_timer(&mbox->rxpoll_timer,
 		  jiffies + msecs_to_jiffies(MBOX_POLLING_MS));
 
diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 9b7005e1345e..e5a69679cfa2 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -69,7 +69,6 @@
 
 #include "mailbox.h"
 
-#define MAX_PCC_SUBSPACES	256
 #define MBOX_IRQ_NAME		"pcc-mbox"
 
 static struct mbox_chan *pcc_mbox_channels;
diff --git a/drivers/mcb/Makefile b/drivers/mcb/Makefile
index bcc7745774ab..77073c5928f4 100644
--- a/drivers/mcb/Makefile
+++ b/drivers/mcb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_MCB) += mcb.o
 
diff --git a/drivers/mcb/mcb-internal.h b/drivers/mcb/mcb-internal.h
index d6e6933b19f1..3602cb3b2021 100644
--- a/drivers/mcb/mcb-internal.h
+++ b/drivers/mcb/mcb-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MCB_INTERNAL
 #define __MCB_INTERNAL
 
diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 4a249ee86364..83b9362be09c 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -178,7 +178,7 @@ config MD_FAULTY
 
 
 config MD_CLUSTER
-	tristate "Cluster Support for MD (EXPERIMENTAL)"
+	tristate "Cluster Support for MD"
 	depends on BLK_DEV_MD
 	depends on DLM
 	default n
@@ -188,7 +188,8 @@ config MD_CLUSTER
 	nodes in the cluster can access the MD devices simultaneously.
 
 	This brings the redundancy (and uptime) of RAID levels across the
-	nodes of the cluster.
+	nodes of the cluster. Currently, it can work with raid1 and raid10
+	(limited support).
 
 	If unsure, say N.
 
diff --git a/drivers/md/Makefile b/drivers/md/Makefile
index 786ec9e86d65..f701bb211783 100644
--- a/drivers/md/Makefile
+++ b/drivers/md/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel software RAID and LVM drivers.
 #
@@ -18,9 +19,12 @@ dm-cache-y	+= dm-cache-target.o dm-cache-metadata.o dm-cache-policy.o \
 dm-cache-smq-y   += dm-cache-policy-smq.o
 dm-era-y	+= dm-era-target.o
 dm-verity-y	+= dm-verity-target.o
-md-mod-y	+= md.o bitmap.o
+md-mod-y	+= md.o md-bitmap.o
 raid456-y	+= raid5.o raid5-cache.o raid5-ppl.o
 dm-zoned-y	+= dm-zoned-target.o dm-zoned-metadata.o dm-zoned-reclaim.o
+linear-y	+= md-linear.o
+multipath-y	+= md-multipath.o
+faulty-y	+= md-faulty.o
 
 # Note: link order is important.  All raid personalities
 # and must come before md.o, as they each initialise 
diff --git a/drivers/md/bcache/Makefile b/drivers/md/bcache/Makefile
index c488b846f831..d26b35195825 100644
--- a/drivers/md/bcache/Makefile
+++ b/drivers/md/bcache/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_BCACHE)	+= bcache.o
 
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index cacbe2dbd5c3..a27d85232ce1 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Primary bucket allocation code
  *
@@ -406,7 +407,8 @@ long bch_bucket_alloc(struct cache *ca, unsigned reserve, bool wait)
 
 	finish_wait(&ca->set->bucket_wait, &w);
 out:
-	wake_up_process(ca->alloc_thread);
+	if (ca->alloc_thread)
+		wake_up_process(ca->alloc_thread);
 
 	trace_bcache_alloc(ca, reserve);
 
@@ -441,6 +443,11 @@ out:
 		b->prio = INITIAL_PRIO;
 	}
 
+	if (ca->set->avail_nbuckets > 0) {
+		ca->set->avail_nbuckets--;
+		bch_update_bucket_in_use(ca->set, &ca->set->gc_stats);
+	}
+
 	return r;
 }
 
@@ -448,6 +455,11 @@ void __bch_bucket_free(struct cache *ca, struct bucket *b)
 {
 	SET_GC_MARK(b, 0);
 	SET_GC_SECTORS_USED(b, 0);
+
+	if (ca->set->avail_nbuckets < ca->set->nbuckets) {
+		ca->set->avail_nbuckets++;
+		bch_update_bucket_in_use(ca->set, &ca->set->gc_stats);
+	}
 }
 
 void bch_bucket_free(struct cache_set *c, struct bkey *k)
@@ -600,7 +612,7 @@ bool bch_alloc_sectors(struct cache_set *c, struct bkey *k, unsigned sectors,
 
 	/*
 	 * If we had to allocate, we might race and not need to allocate the
-	 * second time we call find_data_bucket(). If we allocated a bucket but
+	 * second time we call pick_data_bucket(). If we allocated a bucket but
 	 * didn't use it, drop the refcount bch_bucket_alloc_set() took:
 	 */
 	if (KEY_PTRS(&alloc.key))
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 2ed9bd231d84..843877e017e1 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_H
 #define _BCACHE_H
 
@@ -184,6 +185,7 @@
 #include <linux/mutex.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
+#include <linux/refcount.h>
 #include <linux/types.h>
 #include <linux/workqueue.h>
 
@@ -265,9 +267,6 @@ struct bcache_device {
 	atomic_t		*stripe_sectors_dirty;
 	unsigned long		*full_dirty_stripes;
 
-	unsigned long		sectors_dirty_last;
-	long			sectors_dirty_derivative;
-
 	struct bio_set		*bio_split;
 
 	unsigned		data_csum:1;
@@ -299,7 +298,7 @@ struct cached_dev {
 	struct semaphore	sb_write_mutex;
 
 	/* Refcount on the cache set. Always nonzero when we're caching. */
-	atomic_t		count;
+	refcount_t		count;
 	struct work_struct	detach;
 
 	/*
@@ -362,12 +361,14 @@ struct cached_dev {
 
 	uint64_t		writeback_rate_target;
 	int64_t			writeback_rate_proportional;
-	int64_t			writeback_rate_derivative;
-	int64_t			writeback_rate_change;
+	int64_t			writeback_rate_integral;
+	int64_t			writeback_rate_integral_scaled;
+	int32_t			writeback_rate_change;
 
 	unsigned		writeback_rate_update_seconds;
-	unsigned		writeback_rate_d_term;
+	unsigned		writeback_rate_i_term_inverse;
 	unsigned		writeback_rate_p_term_inverse;
+	unsigned		writeback_rate_minimum;
 };
 
 enum alloc_reserve {
@@ -581,6 +582,7 @@ struct cache_set {
 	uint8_t			need_gc;
 	struct gc_stat		gc_stats;
 	size_t			nbuckets;
+	size_t			avail_nbuckets;
 
 	struct task_struct	*gc_thread;
 	/* Where in the btree gc currently is */
@@ -806,13 +808,13 @@ do {									\
 
 static inline void cached_dev_put(struct cached_dev *dc)
 {
-	if (atomic_dec_and_test(&dc->count))
+	if (refcount_dec_and_test(&dc->count))
 		schedule_work(&dc->detach);
 }
 
 static inline bool cached_dev_get(struct cached_dev *dc)
 {
-	if (!atomic_inc_not_zero(&dc->count))
+	if (!refcount_inc_not_zero(&dc->count))
 		return false;
 
 	/* Paired with the mb in cached_dev_attach */
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 18526d44688d..e56d3ecdbfcb 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Code for working with individual keys, and sorted sets of keys with in a
  * btree node
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index ae964624efb2..fa506c1aa524 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_BSET_H
 #define _BCACHE_BSET_H
 
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 866dcf78ff8e..11c5503d31dc 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2010 Kent Overstreet <kent.overstreet@gmail.com>
  *
@@ -1240,6 +1241,11 @@ void bch_initial_mark_key(struct cache_set *c, int level, struct bkey *k)
 	__bch_btree_mark_key(c, level, k);
 }
 
+void bch_update_bucket_in_use(struct cache_set *c, struct gc_stat *stats)
+{
+	stats->in_use = (c->nbuckets - c->avail_nbuckets) * 100 / c->nbuckets;
+}
+
 static bool btree_gc_mark_node(struct btree *b, struct gc_stat *gc)
 {
 	uint8_t stale = 0;
@@ -1651,9 +1657,8 @@ static void btree_gc_start(struct cache_set *c)
 	mutex_unlock(&c->bucket_lock);
 }
 
-static size_t bch_btree_gc_finish(struct cache_set *c)
+static void bch_btree_gc_finish(struct cache_set *c)
 {
-	size_t available = 0;
 	struct bucket *b;
 	struct cache *ca;
 	unsigned i;
@@ -1690,6 +1695,7 @@ static size_t bch_btree_gc_finish(struct cache_set *c)
 	}
 	rcu_read_unlock();
 
+	c->avail_nbuckets = 0;
 	for_each_cache(ca, c, i) {
 		uint64_t *i;
 
@@ -1711,18 +1717,16 @@ static size_t bch_btree_gc_finish(struct cache_set *c)
 			BUG_ON(!GC_MARK(b) && GC_SECTORS_USED(b));
 
 			if (!GC_MARK(b) || GC_MARK(b) == GC_MARK_RECLAIMABLE)
-				available++;
+				c->avail_nbuckets++;
 		}
 	}
 
 	mutex_unlock(&c->bucket_lock);
-	return available;
 }
 
 static void bch_btree_gc(struct cache_set *c)
 {
 	int ret;
-	unsigned long available;
 	struct gc_stat stats;
 	struct closure writes;
 	struct btree_op op;
@@ -1745,14 +1749,14 @@ static void bch_btree_gc(struct cache_set *c)
 			pr_warn("gc failed!");
 	} while (ret);
 
-	available = bch_btree_gc_finish(c);
+	bch_btree_gc_finish(c);
 	wake_up_allocators(c);
 
 	bch_time_stats_update(&c->btree_gc_time, start_time);
 
 	stats.key_bytes *= sizeof(uint64_t);
 	stats.data	<<= 9;
-	stats.in_use	= (c->nbuckets - available) * 100 / c->nbuckets;
+	bch_update_bucket_in_use(c, &stats);
 	memcpy(&c->gc_stats, &stats, sizeof(struct gc_stat));
 
 	trace_bcache_gc_end(c);
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 73da1f5626cb..d211e2c25b6b 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_BTREE_H
 #define _BCACHE_BTREE_H
 
@@ -305,5 +306,5 @@ void bch_keybuf_del(struct keybuf *, struct keybuf_key *);
 struct keybuf_key *bch_keybuf_next(struct keybuf *);
 struct keybuf_key *bch_keybuf_next_rescan(struct cache_set *, struct keybuf *,
 					  struct bkey *, keybuf_pred_fn *);
-
+void bch_update_bucket_in_use(struct cache_set *c, struct gc_stat *stats);
 #endif
diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c
index 7d5286b05036..1841d0359bac 100644
--- a/drivers/md/bcache/closure.c
+++ b/drivers/md/bcache/closure.c
@@ -64,7 +64,7 @@ EXPORT_SYMBOL(closure_put);
 void __closure_wake_up(struct closure_waitlist *wait_list)
 {
 	struct llist_node *list;
-	struct closure *cl;
+	struct closure *cl, *t;
 	struct llist_node *reverse = NULL;
 
 	list = llist_del_all(&wait_list->list);
@@ -73,7 +73,7 @@ void __closure_wake_up(struct closure_waitlist *wait_list)
 	reverse = llist_reverse_order(list);
 
 	/* Then do the wakeups */
-	llist_for_each_entry(cl, reverse, list) {
+	llist_for_each_entry_safe(cl, t, reverse, list) {
 		closure_set_waiting(cl, 0);
 		closure_sub(cl, CLOSURE_WAITING + 1);
 	}
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 295b7e43f92c..ccfbea6f9f6b 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CLOSURE_H
 #define _LINUX_CLOSURE_H
 
@@ -251,6 +252,12 @@ static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
 static inline void closure_queue(struct closure *cl)
 {
 	struct workqueue_struct *wq = cl->wq;
+	/**
+	 * Changes made to closure, work_struct, or a couple of other structs
+	 * may cause work.func not pointing to the right location.
+	 */
+	BUILD_BUG_ON(offsetof(struct closure, fn)
+		     != offsetof(struct work_struct, func));
 	if (wq) {
 		INIT_WORK(&cl->work, cl->work.func);
 		BUG_ON(!queue_work(wq, &cl->work));
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 61076eda2e6d..c7a02c4900da 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Assorted bcache debug code
  *
diff --git a/drivers/md/bcache/debug.h b/drivers/md/bcache/debug.h
index 1f63c195d247..acc48d3fa274 100644
--- a/drivers/md/bcache/debug.h
+++ b/drivers/md/bcache/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_DEBUG_H
 #define _BCACHE_DEBUG_H
 
diff --git a/drivers/md/bcache/extents.c b/drivers/md/bcache/extents.c
index 243de0bf15cd..41c238fc3733 100644
--- a/drivers/md/bcache/extents.c
+++ b/drivers/md/bcache/extents.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2010 Kent Overstreet <kent.overstreet@gmail.com>
  *
diff --git a/drivers/md/bcache/extents.h b/drivers/md/bcache/extents.h
index e2ed54054e7a..0cd3575afa1d 100644
--- a/drivers/md/bcache/extents.h
+++ b/drivers/md/bcache/extents.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_EXTENTS_H
 #define _BCACHE_EXTENTS_H
 
diff --git a/drivers/md/bcache/io.c b/drivers/md/bcache/io.c
index 7e871bdc0097..fac97ec2d0e2 100644
--- a/drivers/md/bcache/io.c
+++ b/drivers/md/bcache/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Some low level IO code, and hacks for various block layer limitations
  *
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 7e1d1c3ba33a..02a98ddb592d 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bcache journalling code, for btree insertions
  *
diff --git a/drivers/md/bcache/journal.h b/drivers/md/bcache/journal.h
index e3c39457afbb..b5788199188f 100644
--- a/drivers/md/bcache/journal.h
+++ b/drivers/md/bcache/journal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_JOURNAL_H
 #define _BCACHE_JOURNAL_H
 
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index f633b30c962e..d50c1c97da68 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Moving/copying garbage collector
  *
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 681b4f12b05a..3a7aed7282b2 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Main bcache entry point - handle a read or a write request and decide what to
  * do with it; the make_request functions are called by the block layer.
@@ -26,12 +27,12 @@ struct kmem_cache *bch_search_cache;
 
 static void bch_data_insert_start(struct closure *);
 
-static unsigned cache_mode(struct cached_dev *dc, struct bio *bio)
+static unsigned cache_mode(struct cached_dev *dc)
 {
 	return BDEV_CACHE_MODE(&dc->sb);
 }
 
-static bool verify(struct cached_dev *dc, struct bio *bio)
+static bool verify(struct cached_dev *dc)
 {
 	return dc->verify;
 }
@@ -369,7 +370,7 @@ static struct hlist_head *iohash(struct cached_dev *dc, uint64_t k)
 static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
 {
 	struct cache_set *c = dc->disk.c;
-	unsigned mode = cache_mode(dc, bio);
+	unsigned mode = cache_mode(dc);
 	unsigned sectors, congested = bch_get_congested(c);
 	struct task_struct *task = current;
 	struct io *i;
@@ -384,6 +385,14 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
 	     op_is_write(bio_op(bio))))
 		goto skip;
 
+	/*
+	 * Flag for bypass if the IO is for read-ahead or background,
+	 * unless the read-ahead request is for metadata (eg, for gfs2).
+	 */
+	if (bio->bi_opf & (REQ_RAHEAD|REQ_BACKGROUND) &&
+	    !(bio->bi_opf & REQ_META))
+		goto skip;
+
 	if (bio->bi_iter.bi_sector & (c->sb.block_size - 1) ||
 	    bio_sectors(bio) & (c->sb.block_size - 1)) {
 		pr_debug("skipping unaligned io");
@@ -462,6 +471,7 @@ struct search {
 	unsigned		recoverable:1;
 	unsigned		write:1;
 	unsigned		read_dirty_data:1;
+	unsigned		cache_missed:1;
 
 	unsigned long		start_time;
 
@@ -648,6 +658,7 @@ static inline struct search *search_alloc(struct bio *bio,
 
 	s->orig_bio		= bio;
 	s->cache_miss		= NULL;
+	s->cache_missed		= 0;
 	s->d			= d;
 	s->recoverable		= 1;
 	s->write		= op_is_write(bio_op(bio));
@@ -697,8 +708,16 @@ static void cached_dev_read_error(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
+	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
-	if (s->recoverable) {
+	/*
+	 * If cache device is dirty (dc->has_dirty is non-zero), then
+	 * recovery a failed read request from cached device may get a
+	 * stale data back. So read failure recovery is only permitted
+	 * when cache device is clean.
+	 */
+	if (s->recoverable &&
+	    (dc && !atomic_read(&dc->has_dirty))) {
 		/* Retry from the backing device: */
 		trace_bcache_read_retry(s->orig_bio);
 
@@ -739,7 +758,7 @@ static void cached_dev_read_done(struct closure *cl)
 		s->cache_miss = NULL;
 	}
 
-	if (verify(dc, &s->bio.bio) && s->recoverable && !s->read_dirty_data)
+	if (verify(dc) && s->recoverable && !s->read_dirty_data)
 		bch_data_verify(dc, s->orig_bio);
 
 	bio_complete(s);
@@ -759,12 +778,12 @@ static void cached_dev_read_done_bh(struct closure *cl)
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
 	bch_mark_cache_accounting(s->iop.c, s->d,
-				  !s->cache_miss, s->iop.bypass);
+				  !s->cache_missed, s->iop.bypass);
 	trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);
 
 	if (s->iop.status)
 		continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);
-	else if (s->iop.bio || verify(dc, &s->bio.bio))
+	else if (s->iop.bio || verify(dc))
 		continue_at_nobarrier(cl, cached_dev_read_done, bcache_wq);
 	else
 		continue_at_nobarrier(cl, cached_dev_bio_complete, NULL);
@@ -778,6 +797,8 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss, *cache_bio;
 
+	s->cache_missed = 1;
+
 	if (s->cache_miss || s->iop.bypass) {
 		miss = bio_next_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 		ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
@@ -891,7 +912,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 		s->iop.bypass = true;
 
 	if (should_writeback(dc, s->orig_bio,
-			     cache_mode(dc, bio),
+			     cache_mode(dc),
 			     s->iop.bypass)) {
 		s->iop.bypass = false;
 		s->iop.writeback = true;
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 7689176951ce..dea0886b81c1 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_REQUEST_H_
 #define _BCACHE_REQUEST_H_
 
diff --git a/drivers/md/bcache/stats.c b/drivers/md/bcache/stats.c
index 0ca072c20d0d..d0831d5bcc87 100644
--- a/drivers/md/bcache/stats.c
+++ b/drivers/md/bcache/stats.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bcache stats code
  *
diff --git a/drivers/md/bcache/stats.h b/drivers/md/bcache/stats.h
index adbff141c887..0b70f9de0c03 100644
--- a/drivers/md/bcache/stats.h
+++ b/drivers/md/bcache/stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_STATS_H_
 #define _BCACHE_STATS_H_
 
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index fc0a31b13ac4..b4d28928dec5 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -53,12 +53,15 @@ LIST_HEAD(bch_cache_sets);
 static LIST_HEAD(uncached_devices);
 
 static int bcache_major;
-static DEFINE_IDA(bcache_minor);
+static DEFINE_IDA(bcache_device_idx);
 static wait_queue_head_t unregister_wait;
 struct workqueue_struct *bcache_wq;
 
 #define BTREE_MAX_PAGES		(256 * 1024 / PAGE_SIZE)
-#define BCACHE_MINORS		16 /* partition support */
+/* limitation of partitions number on single bcache device */
+#define BCACHE_MINORS		128
+/* limitation of bcache devices number on single system */
+#define BCACHE_DEVICE_IDX_MAX	((1U << MINORBITS)/BCACHE_MINORS)
 
 /* Superblock */
 
@@ -721,6 +724,16 @@ static void bcache_device_attach(struct bcache_device *d, struct cache_set *c,
 	closure_get(&c->caching);
 }
 
+static inline int first_minor_to_idx(int first_minor)
+{
+	return (first_minor/BCACHE_MINORS);
+}
+
+static inline int idx_to_first_minor(int idx)
+{
+	return (idx * BCACHE_MINORS);
+}
+
 static void bcache_device_free(struct bcache_device *d)
 {
 	lockdep_assert_held(&bch_register_lock);
@@ -734,7 +747,8 @@ static void bcache_device_free(struct bcache_device *d)
 	if (d->disk && d->disk->queue)
 		blk_cleanup_queue(d->disk->queue);
 	if (d->disk) {
-		ida_simple_remove(&bcache_minor, d->disk->first_minor);
+		ida_simple_remove(&bcache_device_idx,
+				  first_minor_to_idx(d->disk->first_minor));
 		put_disk(d->disk);
 	}
 
@@ -751,7 +765,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 {
 	struct request_queue *q;
 	size_t n;
-	int minor;
+	int idx;
 
 	if (!d->stripe_size)
 		d->stripe_size = 1 << 31;
@@ -776,25 +790,24 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 	if (!d->full_dirty_stripes)
 		return -ENOMEM;
 
-	minor = ida_simple_get(&bcache_minor, 0, MINORMASK + 1, GFP_KERNEL);
-	if (minor < 0)
-		return minor;
-
-	minor *= BCACHE_MINORS;
+	idx = ida_simple_get(&bcache_device_idx, 0,
+				BCACHE_DEVICE_IDX_MAX, GFP_KERNEL);
+	if (idx < 0)
+		return idx;
 
 	if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio),
 					   BIOSET_NEED_BVECS |
 					   BIOSET_NEED_RESCUER)) ||
 	    !(d->disk = alloc_disk(BCACHE_MINORS))) {
-		ida_simple_remove(&bcache_minor, minor);
+		ida_simple_remove(&bcache_device_idx, idx);
 		return -ENOMEM;
 	}
 
 	set_capacity(d->disk, sectors);
-	snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);
+	snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", idx);
 
 	d->disk->major		= bcache_major;
-	d->disk->first_minor	= minor;
+	d->disk->first_minor	= idx_to_first_minor(idx);
 	d->disk->fops		= &bcache_ops;
 	d->disk->private_data	= d;
 
@@ -889,7 +902,7 @@ static void cached_dev_detach_finish(struct work_struct *w)
 	closure_init_stack(&cl);
 
 	BUG_ON(!test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags));
-	BUG_ON(atomic_read(&dc->count));
+	BUG_ON(refcount_read(&dc->count));
 
 	mutex_lock(&bch_register_lock);
 
@@ -1016,7 +1029,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c)
 	 * dc->c must be set before dc->count != 0 - paired with the mb in
 	 * cached_dev_get()
 	 */
-	atomic_set(&dc->count, 1);
+	refcount_set(&dc->count, 1);
 
 	/* Block writeback thread, but spawn it */
 	down_write(&dc->writeback_lock);
@@ -1028,7 +1041,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c)
 	if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) {
 		bch_sectors_dirty_init(&dc->disk);
 		atomic_set(&dc->has_dirty, 1);
-		atomic_inc(&dc->count);
+		refcount_inc(&dc->count);
 		bch_writeback_queue(dc);
 	}
 
@@ -1129,9 +1142,6 @@ static int cached_dev_init(struct cached_dev *dc, unsigned block_size)
 	if (ret)
 		return ret;
 
-	set_capacity(dc->disk.disk,
-		     dc->bdev->bd_part->nr_sects - dc->sb.data_offset);
-
 	dc->disk.disk->queue->backing_dev_info->ra_pages =
 		max(dc->disk.disk->queue->backing_dev_info->ra_pages,
 		    q->backing_dev_info->ra_pages);
@@ -2085,6 +2095,7 @@ static void bcache_exit(void)
 	if (bcache_major)
 		unregister_blkdev(bcache_major, "bcache");
 	unregister_reboot_notifier(&reboot);
+	mutex_destroy(&bch_register_lock);
 }
 
 static int __init bcache_init(void)
@@ -2103,14 +2114,15 @@ static int __init bcache_init(void)
 	bcache_major = register_blkdev(0, "bcache");
 	if (bcache_major < 0) {
 		unregister_reboot_notifier(&reboot);
+		mutex_destroy(&bch_register_lock);
 		return bcache_major;
 	}
 
 	if (!(bcache_wq = alloc_workqueue("bcache", WQ_MEM_RECLAIM, 0)) ||
 	    !(bcache_kobj = kobject_create_and_add("bcache", fs_kobj)) ||
-	    sysfs_create_files(bcache_kobj, files) ||
 	    bch_request_init() ||
-	    bch_debug_init(bcache_kobj))
+	    bch_debug_init(bcache_kobj) ||
+	    sysfs_create_files(bcache_kobj, files))
 		goto err;
 
 	return 0;
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 104c57cd666c..b4184092c727 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bcache sysfs interfaces
  *
@@ -81,8 +82,9 @@ rw_attribute(writeback_delay);
 rw_attribute(writeback_rate);
 
 rw_attribute(writeback_rate_update_seconds);
-rw_attribute(writeback_rate_d_term);
+rw_attribute(writeback_rate_i_term_inverse);
 rw_attribute(writeback_rate_p_term_inverse);
+rw_attribute(writeback_rate_minimum);
 read_attribute(writeback_rate_debug);
 
 read_attribute(stripe_size);
@@ -130,15 +132,16 @@ SHOW(__bch_cached_dev)
 	sysfs_hprint(writeback_rate,	dc->writeback_rate.rate << 9);
 
 	var_print(writeback_rate_update_seconds);
-	var_print(writeback_rate_d_term);
+	var_print(writeback_rate_i_term_inverse);
 	var_print(writeback_rate_p_term_inverse);
+	var_print(writeback_rate_minimum);
 
 	if (attr == &sysfs_writeback_rate_debug) {
 		char rate[20];
 		char dirty[20];
 		char target[20];
 		char proportional[20];
-		char derivative[20];
+		char integral[20];
 		char change[20];
 		s64 next_io;
 
@@ -146,7 +149,7 @@ SHOW(__bch_cached_dev)
 		bch_hprint(dirty,	bcache_dev_sectors_dirty(&dc->disk) << 9);
 		bch_hprint(target,	dc->writeback_rate_target << 9);
 		bch_hprint(proportional,dc->writeback_rate_proportional << 9);
-		bch_hprint(derivative,	dc->writeback_rate_derivative << 9);
+		bch_hprint(integral,	dc->writeback_rate_integral_scaled << 9);
 		bch_hprint(change,	dc->writeback_rate_change << 9);
 
 		next_io = div64_s64(dc->writeback_rate.next - local_clock(),
@@ -157,11 +160,11 @@ SHOW(__bch_cached_dev)
 			       "dirty:\t\t%s\n"
 			       "target:\t\t%s\n"
 			       "proportional:\t%s\n"
-			       "derivative:\t%s\n"
+			       "integral:\t%s\n"
 			       "change:\t\t%s/sec\n"
 			       "next io:\t%llims\n",
 			       rate, dirty, target, proportional,
-			       derivative, change, next_io);
+			       integral, change, next_io);
 	}
 
 	sysfs_hprint(dirty_data,
@@ -213,7 +216,7 @@ STORE(__cached_dev)
 			    dc->writeback_rate.rate, 1, INT_MAX);
 
 	d_strtoul_nonzero(writeback_rate_update_seconds);
-	d_strtoul(writeback_rate_d_term);
+	d_strtoul(writeback_rate_i_term_inverse);
 	d_strtoul_nonzero(writeback_rate_p_term_inverse);
 
 	d_strtoi_h(sequential_cutoff);
@@ -319,7 +322,7 @@ static struct attribute *bch_cached_dev_files[] = {
 	&sysfs_writeback_percent,
 	&sysfs_writeback_rate,
 	&sysfs_writeback_rate_update_seconds,
-	&sysfs_writeback_rate_d_term,
+	&sysfs_writeback_rate_i_term_inverse,
 	&sysfs_writeback_rate_p_term_inverse,
 	&sysfs_writeback_rate_debug,
 	&sysfs_dirty_data,
@@ -745,6 +748,11 @@ static struct attribute *bch_cache_set_internal_files[] = {
 };
 KTYPE(bch_cache_set_internal);
 
+static int __bch_cache_cmp(const void *l, const void *r)
+{
+	return *((uint16_t *)r) - *((uint16_t *)l);
+}
+
 SHOW(__bch_cache)
 {
 	struct cache *ca = container_of(kobj, struct cache, kobj);
@@ -769,9 +777,6 @@ SHOW(__bch_cache)
 					       CACHE_REPLACEMENT(&ca->sb));
 
 	if (attr == &sysfs_priority_stats) {
-		int cmp(const void *l, const void *r)
-		{	return *((uint16_t *) r) - *((uint16_t *) l); }
-
 		struct bucket *b;
 		size_t n = ca->sb.nbuckets, i;
 		size_t unused = 0, available = 0, dirty = 0, meta = 0;
@@ -800,7 +805,7 @@ SHOW(__bch_cache)
 			p[i] = ca->buckets[i].prio;
 		mutex_unlock(&ca->set->bucket_lock);
 
-		sort(p, n, sizeof(uint16_t), cmp, NULL);
+		sort(p, n, sizeof(uint16_t), __bch_cache_cmp, NULL);
 
 		while (n &&
 		       !cached[n - 1])
diff --git a/drivers/md/bcache/sysfs.h b/drivers/md/bcache/sysfs.h
index 0526fe92a683..b54fe9602529 100644
--- a/drivers/md/bcache/sysfs.h
+++ b/drivers/md/bcache/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_SYSFS_H_
 #define _BCACHE_SYSFS_H_
 
diff --git a/drivers/md/bcache/trace.c b/drivers/md/bcache/trace.c
index b7820b0d2621..a9a73f560c04 100644
--- a/drivers/md/bcache/trace.c
+++ b/drivers/md/bcache/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "bcache.h"
 #include "btree.h"
 
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index 176d3c2ef5f5..e548b8b51322 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -232,8 +232,14 @@ uint64_t bch_next_delay(struct bch_ratelimit *d, uint64_t done)
 
 	d->next += div_u64(done * NSEC_PER_SEC, d->rate);
 
-	if (time_before64(now + NSEC_PER_SEC, d->next))
-		d->next = now + NSEC_PER_SEC;
+	/* Bound the time.  Don't let us fall further than 2 seconds behind
+	 * (this prevents unnecessary backlog that would make it impossible
+	 * to catch up).  If we're ahead of the desired writeback rate,
+	 * don't let us sleep more than 2.5 seconds (so we can notice/respond
+	 * if the control system tells us to speed up!).
+	 */
+	if (time_before64(now + NSEC_PER_SEC * 5LLU / 2LLU, d->next))
+		d->next = now + NSEC_PER_SEC * 5LLU / 2LLU;
 
 	if (time_after64(now - NSEC_PER_SEC * 2, d->next))
 		d->next = now - NSEC_PER_SEC * 2;
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index cb8d2ccbb6c6..ed5e8a412eb8 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _BCACHE_UTIL_H
 #define _BCACHE_UTIL_H
@@ -441,10 +442,10 @@ struct bch_ratelimit {
 	uint64_t		next;
 
 	/*
-	 * Rate at which we want to do work, in units per nanosecond
+	 * Rate at which we want to do work, in units per second
 	 * The units here correspond to the units passed to bch_next_delay()
 	 */
-	unsigned		rate;
+	uint32_t		rate;
 };
 
 static inline void bch_ratelimit_reset(struct bch_ratelimit *d)
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index e663ca082183..56a37884ca8b 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * background writeback - scan btree for dirty data and write it to the backing
  * device
@@ -25,48 +26,63 @@ static void __update_writeback_rate(struct cached_dev *dc)
 				bcache_flash_devs_sectors_dirty(c);
 	uint64_t cache_dirty_target =
 		div_u64(cache_sectors * dc->writeback_percent, 100);
-
 	int64_t target = div64_u64(cache_dirty_target * bdev_sectors(dc->bdev),
 				   c->cached_dev_sectors);
 
-	/* PD controller */
-
+	/*
+	 * PI controller:
+	 * Figures out the amount that should be written per second.
+	 *
+	 * First, the error (number of sectors that are dirty beyond our
+	 * target) is calculated.  The error is accumulated (numerically
+	 * integrated).
+	 *
+	 * Then, the proportional value and integral value are scaled
+	 * based on configured values.  These are stored as inverses to
+	 * avoid fixed point math and to make configuration easy-- e.g.
+	 * the default value of 40 for writeback_rate_p_term_inverse
+	 * attempts to write at a rate that would retire all the dirty
+	 * blocks in 40 seconds.
+	 *
+	 * The writeback_rate_i_inverse value of 10000 means that 1/10000th
+	 * of the error is accumulated in the integral term per second.
+	 * This acts as a slow, long-term average that is not subject to
+	 * variations in usage like the p term.
+	 */
 	int64_t dirty = bcache_dev_sectors_dirty(&dc->disk);
-	int64_t derivative = dirty - dc->disk.sectors_dirty_last;
-	int64_t proportional = dirty - target;
-	int64_t change;
-
-	dc->disk.sectors_dirty_last = dirty;
-
-	/* Scale to sectors per second */
-
-	proportional *= dc->writeback_rate_update_seconds;
-	proportional = div_s64(proportional, dc->writeback_rate_p_term_inverse);
-
-	derivative = div_s64(derivative, dc->writeback_rate_update_seconds);
-
-	derivative = ewma_add(dc->disk.sectors_dirty_derivative, derivative,
-			      (dc->writeback_rate_d_term /
-			       dc->writeback_rate_update_seconds) ?: 1, 0);
-
-	derivative *= dc->writeback_rate_d_term;
-	derivative = div_s64(derivative, dc->writeback_rate_p_term_inverse);
-
-	change = proportional + derivative;
+	int64_t error = dirty - target;
+	int64_t proportional_scaled =
+		div_s64(error, dc->writeback_rate_p_term_inverse);
+	int64_t integral_scaled;
+	uint32_t new_rate;
+
+	if ((error < 0 && dc->writeback_rate_integral > 0) ||
+	    (error > 0 && time_before64(local_clock(),
+			 dc->writeback_rate.next + NSEC_PER_MSEC))) {
+		/*
+		 * Only decrease the integral term if it's more than
+		 * zero.  Only increase the integral term if the device
+		 * is keeping up.  (Don't wind up the integral
+		 * ineffectively in either case).
+		 *
+		 * It's necessary to scale this by
+		 * writeback_rate_update_seconds to keep the integral
+		 * term dimensioned properly.
+		 */
+		dc->writeback_rate_integral += error *
+			dc->writeback_rate_update_seconds;
+	}
 
-	/* Don't increase writeback rate if the device isn't keeping up */
-	if (change > 0 &&
-	    time_after64(local_clock(),
-			 dc->writeback_rate.next + NSEC_PER_MSEC))
-		change = 0;
+	integral_scaled = div_s64(dc->writeback_rate_integral,
+			dc->writeback_rate_i_term_inverse);
 
-	dc->writeback_rate.rate =
-		clamp_t(int64_t, (int64_t) dc->writeback_rate.rate + change,
-			1, NSEC_PER_MSEC);
+	new_rate = clamp_t(int32_t, (proportional_scaled + integral_scaled),
+			dc->writeback_rate_minimum, NSEC_PER_SEC);
 
-	dc->writeback_rate_proportional = proportional;
-	dc->writeback_rate_derivative = derivative;
-	dc->writeback_rate_change = change;
+	dc->writeback_rate_proportional = proportional_scaled;
+	dc->writeback_rate_integral_scaled = integral_scaled;
+	dc->writeback_rate_change = new_rate - dc->writeback_rate.rate;
+	dc->writeback_rate.rate = new_rate;
 	dc->writeback_rate_target = target;
 }
 
@@ -179,13 +195,21 @@ static void write_dirty(struct closure *cl)
 	struct dirty_io *io = container_of(cl, struct dirty_io, cl);
 	struct keybuf_key *w = io->bio.bi_private;
 
-	dirty_init(w);
-	bio_set_op_attrs(&io->bio, REQ_OP_WRITE, 0);
-	io->bio.bi_iter.bi_sector = KEY_START(&w->key);
-	bio_set_dev(&io->bio, io->dc->bdev);
-	io->bio.bi_end_io	= dirty_endio;
+	/*
+	 * IO errors are signalled using the dirty bit on the key.
+	 * If we failed to read, we should not attempt to write to the
+	 * backing device.  Instead, immediately go to write_dirty_finish
+	 * to clean up.
+	 */
+	if (KEY_DIRTY(&w->key)) {
+		dirty_init(w);
+		bio_set_op_attrs(&io->bio, REQ_OP_WRITE, 0);
+		io->bio.bi_iter.bi_sector = KEY_START(&w->key);
+		bio_set_dev(&io->bio, io->dc->bdev);
+		io->bio.bi_end_io	= dirty_endio;
 
-	closure_bio_submit(&io->bio, cl);
+		closure_bio_submit(&io->bio, cl);
+	}
 
 	continue_at(cl, write_dirty_finish, io->dc->writeback_write_wq);
 }
@@ -417,6 +441,8 @@ static int bch_writeback_thread(void *arg)
 	struct cached_dev *dc = arg;
 	bool searched_full_index;
 
+	bch_ratelimit_reset(&dc->writeback_rate);
+
 	while (!kthread_should_stop()) {
 		down_write(&dc->writeback_lock);
 		if (!atomic_read(&dc->has_dirty) ||
@@ -444,7 +470,6 @@ static int bch_writeback_thread(void *arg)
 
 		up_write(&dc->writeback_lock);
 
-		bch_ratelimit_reset(&dc->writeback_rate);
 		read_dirty(dc);
 
 		if (searched_full_index) {
@@ -454,6 +479,8 @@ static int bch_writeback_thread(void *arg)
 			       !kthread_should_stop() &&
 			       !test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags))
 				delay = schedule_timeout_interruptible(delay);
+
+			bch_ratelimit_reset(&dc->writeback_rate);
 		}
 	}
 
@@ -491,8 +518,6 @@ void bch_sectors_dirty_init(struct bcache_device *d)
 
 	bch_btree_map_keys(&op.op, d->c, &KEY(op.inode, 0, 0),
 			   sectors_dirty_init_fn, 0);
-
-	d->sectors_dirty_last = bcache_dev_sectors_dirty(d);
 }
 
 void bch_cached_dev_writeback_init(struct cached_dev *dc)
@@ -506,10 +531,11 @@ void bch_cached_dev_writeback_init(struct cached_dev *dc)
 	dc->writeback_percent		= 10;
 	dc->writeback_delay		= 30;
 	dc->writeback_rate.rate		= 1024;
+	dc->writeback_rate_minimum	= 8;
 
 	dc->writeback_rate_update_seconds = 5;
-	dc->writeback_rate_d_term	= 30;
-	dc->writeback_rate_p_term_inverse = 6000;
+	dc->writeback_rate_p_term_inverse = 40;
+	dc->writeback_rate_i_term_inverse = 10000;
 
 	INIT_DELAYED_WORK(&dc->writeback_rate_update, update_writeback_rate);
 }
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index e35421d20d2e..a9e3ffb4b03c 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHE_WRITEBACK_H
 #define _BCACHE_WRITEBACK_H
 
@@ -76,7 +77,9 @@ static inline bool should_writeback(struct cached_dev *dc, struct bio *bio,
 	if (would_skip)
 		return false;
 
-	return op_is_sync(bio->bi_opf) || in_use <= CUTOFF_WRITEBACK;
+	return (op_is_sync(bio->bi_opf) ||
+		bio->bi_opf & (REQ_META|REQ_PRIO) ||
+		in_use <= CUTOFF_WRITEBACK);
 }
 
 static inline void bch_writeback_queue(struct cached_dev *dc)
@@ -89,7 +92,7 @@ static inline void bch_writeback_add(struct cached_dev *dc)
 {
 	if (!atomic_read(&dc->has_dirty) &&
 	    !atomic_xchg(&dc->has_dirty, 1)) {
-		atomic_inc(&dc->count);
+		refcount_inc(&dc->count);
 
 		if (BDEV_STATE(&dc->sb) != BDEV_STATE_DIRTY) {
 			SET_BDEV_STATE(&dc->sb, BDEV_STATE_DIRTY);
diff --git a/drivers/md/dm-bufio.c b/drivers/md/dm-bufio.c
index 9601225e0ae9..33bb074d6941 100644
--- a/drivers/md/dm-bufio.c
+++ b/drivers/md/dm-bufio.c
@@ -64,6 +64,12 @@
 #define DM_BUFIO_BLOCK_SIZE_GFP_LIMIT	(PAGE_SIZE << (MAX_ORDER - 1))
 
 /*
+ * Align buffer writes to this boundary.
+ * Tests show that SSDs have the highest IOPS when using 4k writes.
+ */
+#define DM_BUFIO_WRITE_ALIGN		4096
+
+/*
  * dm_buffer->list_mode
  */
 #define LIST_CLEAN	0
@@ -149,6 +155,10 @@ struct dm_buffer {
 	blk_status_t write_error;
 	unsigned long state;
 	unsigned long last_accessed;
+	unsigned dirty_start;
+	unsigned dirty_end;
+	unsigned write_start;
+	unsigned write_end;
 	struct dm_bufio_client *c;
 	struct list_head write_list;
 	struct bio bio;
@@ -337,7 +347,7 @@ static void __cache_size_refresh(void)
 	BUG_ON(!mutex_is_locked(&dm_bufio_clients_lock));
 	BUG_ON(dm_bufio_client_count < 0);
 
-	dm_bufio_cache_size_latch = ACCESS_ONCE(dm_bufio_cache_size);
+	dm_bufio_cache_size_latch = READ_ONCE(dm_bufio_cache_size);
 
 	/*
 	 * Use default if set to 0 and report the actual cache size used.
@@ -560,7 +570,7 @@ static void dmio_complete(unsigned long error, void *context)
 }
 
 static void use_dmio(struct dm_buffer *b, int rw, sector_t sector,
-		     unsigned n_sectors, bio_end_io_t *end_io)
+		     unsigned n_sectors, unsigned offset, bio_end_io_t *end_io)
 {
 	int r;
 	struct dm_io_request io_req = {
@@ -578,10 +588,10 @@ static void use_dmio(struct dm_buffer *b, int rw, sector_t sector,
 
 	if (b->data_mode != DATA_MODE_VMALLOC) {
 		io_req.mem.type = DM_IO_KMEM;
-		io_req.mem.ptr.addr = b->data;
+		io_req.mem.ptr.addr = (char *)b->data + offset;
 	} else {
 		io_req.mem.type = DM_IO_VMA;
-		io_req.mem.ptr.vma = b->data;
+		io_req.mem.ptr.vma = (char *)b->data + offset;
 	}
 
 	b->bio.bi_end_io = end_io;
@@ -609,10 +619,10 @@ static void inline_endio(struct bio *bio)
 }
 
 static void use_inline_bio(struct dm_buffer *b, int rw, sector_t sector,
-			   unsigned n_sectors, bio_end_io_t *end_io)
+			   unsigned n_sectors, unsigned offset, bio_end_io_t *end_io)
 {
 	char *ptr;
-	int len;
+	unsigned len;
 
 	bio_init(&b->bio, b->bio_vec, DM_BUFIO_INLINE_VECS);
 	b->bio.bi_iter.bi_sector = sector;
@@ -625,29 +635,20 @@ static void use_inline_bio(struct dm_buffer *b, int rw, sector_t sector,
 	b->bio.bi_private = end_io;
 	bio_set_op_attrs(&b->bio, rw, 0);
 
-	/*
-	 * We assume that if len >= PAGE_SIZE ptr is page-aligned.
-	 * If len < PAGE_SIZE the buffer doesn't cross page boundary.
-	 */
-	ptr = b->data;
+	ptr = (char *)b->data + offset;
 	len = n_sectors << SECTOR_SHIFT;
 
-	if (len >= PAGE_SIZE)
-		BUG_ON((unsigned long)ptr & (PAGE_SIZE - 1));
-	else
-		BUG_ON((unsigned long)ptr & (len - 1));
-
 	do {
-		if (!bio_add_page(&b->bio, virt_to_page(ptr),
-				  len < PAGE_SIZE ? len : PAGE_SIZE,
+		unsigned this_step = min((unsigned)(PAGE_SIZE - offset_in_page(ptr)), len);
+		if (!bio_add_page(&b->bio, virt_to_page(ptr), this_step,
 				  offset_in_page(ptr))) {
 			BUG_ON(b->c->block_size <= PAGE_SIZE);
-			use_dmio(b, rw, sector, n_sectors, end_io);
+			use_dmio(b, rw, sector, n_sectors, offset, end_io);
 			return;
 		}
 
-		len -= PAGE_SIZE;
-		ptr += PAGE_SIZE;
+		len -= this_step;
+		ptr += this_step;
 	} while (len > 0);
 
 	submit_bio(&b->bio);
@@ -657,18 +658,33 @@ static void submit_io(struct dm_buffer *b, int rw, bio_end_io_t *end_io)
 {
 	unsigned n_sectors;
 	sector_t sector;
-
-	if (rw == WRITE && b->c->write_callback)
-		b->c->write_callback(b);
+	unsigned offset, end;
 
 	sector = (b->block << b->c->sectors_per_block_bits) + b->c->start;
-	n_sectors = 1 << b->c->sectors_per_block_bits;
+
+	if (rw != WRITE) {
+		n_sectors = 1 << b->c->sectors_per_block_bits;
+		offset = 0;
+	} else {
+		if (b->c->write_callback)
+			b->c->write_callback(b);
+		offset = b->write_start;
+		end = b->write_end;
+		offset &= -DM_BUFIO_WRITE_ALIGN;
+		end += DM_BUFIO_WRITE_ALIGN - 1;
+		end &= -DM_BUFIO_WRITE_ALIGN;
+		if (unlikely(end > b->c->block_size))
+			end = b->c->block_size;
+
+		sector += offset >> SECTOR_SHIFT;
+		n_sectors = (end - offset) >> SECTOR_SHIFT;
+	}
 
 	if (n_sectors <= ((DM_BUFIO_INLINE_VECS * PAGE_SIZE) >> SECTOR_SHIFT) &&
 	    b->data_mode != DATA_MODE_VMALLOC)
-		use_inline_bio(b, rw, sector, n_sectors, end_io);
+		use_inline_bio(b, rw, sector, n_sectors, offset, end_io);
 	else
-		use_dmio(b, rw, sector, n_sectors, end_io);
+		use_dmio(b, rw, sector, n_sectors, offset, end_io);
 }
 
 /*----------------------------------------------------------------
@@ -720,6 +736,9 @@ static void __write_dirty_buffer(struct dm_buffer *b,
 	clear_bit(B_DIRTY, &b->state);
 	wait_on_bit_lock_io(&b->state, B_WRITING, TASK_UNINTERRUPTIBLE);
 
+	b->write_start = b->dirty_start;
+	b->write_end = b->dirty_end;
+
 	if (!write_list)
 		submit_io(b, WRITE, write_endio);
 	else
@@ -941,7 +960,7 @@ static void __get_memory_limit(struct dm_bufio_client *c,
 {
 	unsigned long buffers;
 
-	if (unlikely(ACCESS_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch)) {
+	if (unlikely(READ_ONCE(dm_bufio_cache_size) != dm_bufio_cache_size_latch)) {
 		if (mutex_trylock(&dm_bufio_clients_lock)) {
 			__cache_size_refresh();
 			mutex_unlock(&dm_bufio_clients_lock);
@@ -1221,19 +1240,37 @@ void dm_bufio_release(struct dm_buffer *b)
 }
 EXPORT_SYMBOL_GPL(dm_bufio_release);
 
-void dm_bufio_mark_buffer_dirty(struct dm_buffer *b)
+void dm_bufio_mark_partial_buffer_dirty(struct dm_buffer *b,
+					unsigned start, unsigned end)
 {
 	struct dm_bufio_client *c = b->c;
 
+	BUG_ON(start >= end);
+	BUG_ON(end > b->c->block_size);
+
 	dm_bufio_lock(c);
 
 	BUG_ON(test_bit(B_READING, &b->state));
 
-	if (!test_and_set_bit(B_DIRTY, &b->state))
+	if (!test_and_set_bit(B_DIRTY, &b->state)) {
+		b->dirty_start = start;
+		b->dirty_end = end;
 		__relink_lru(b, LIST_DIRTY);
+	} else {
+		if (start < b->dirty_start)
+			b->dirty_start = start;
+		if (end > b->dirty_end)
+			b->dirty_end = end;
+	}
 
 	dm_bufio_unlock(c);
 }
+EXPORT_SYMBOL_GPL(dm_bufio_mark_partial_buffer_dirty);
+
+void dm_bufio_mark_buffer_dirty(struct dm_buffer *b)
+{
+	dm_bufio_mark_partial_buffer_dirty(b, 0, b->c->block_size);
+}
 EXPORT_SYMBOL_GPL(dm_bufio_mark_buffer_dirty);
 
 void dm_bufio_write_dirty_buffers_async(struct dm_bufio_client *c)
@@ -1398,6 +1435,8 @@ retry:
 		wait_on_bit_io(&b->state, B_WRITING,
 			       TASK_UNINTERRUPTIBLE);
 		set_bit(B_DIRTY, &b->state);
+		b->dirty_start = 0;
+		b->dirty_end = c->block_size;
 		__unlink_buffer(b);
 		__link_buffer(b, new_block, LIST_DIRTY);
 	} else {
@@ -1561,7 +1600,7 @@ static bool __try_evict_buffer(struct dm_buffer *b, gfp_t gfp)
 
 static unsigned long get_retain_buffers(struct dm_bufio_client *c)
 {
-        unsigned long retain_bytes = ACCESS_ONCE(dm_bufio_retain_bytes);
+        unsigned long retain_bytes = READ_ONCE(dm_bufio_retain_bytes);
         return retain_bytes >> (c->sectors_per_block_bits + SECTOR_SHIFT);
 }
 
@@ -1608,7 +1647,7 @@ dm_bufio_shrink_count(struct shrinker *shrink, struct shrink_control *sc)
 {
 	struct dm_bufio_client *c = container_of(shrink, struct dm_bufio_client, shrinker);
 
-	return ACCESS_ONCE(c->n_buffers[LIST_CLEAN]) + ACCESS_ONCE(c->n_buffers[LIST_DIRTY]);
+	return READ_ONCE(c->n_buffers[LIST_CLEAN]) + READ_ONCE(c->n_buffers[LIST_DIRTY]);
 }
 
 /*
@@ -1779,7 +1818,7 @@ EXPORT_SYMBOL_GPL(dm_bufio_set_sector_offset);
 
 static unsigned get_max_age_hz(void)
 {
-	unsigned max_age = ACCESS_ONCE(dm_bufio_max_age);
+	unsigned max_age = READ_ONCE(dm_bufio_max_age);
 
 	if (max_age > UINT_MAX / HZ)
 		max_age = UINT_MAX / HZ;
diff --git a/drivers/md/dm-bufio.h b/drivers/md/dm-bufio.h
index b6d8f53ec15b..be732d3f8611 100644
--- a/drivers/md/dm-bufio.h
+++ b/drivers/md/dm-bufio.h
@@ -94,6 +94,15 @@ void dm_bufio_release(struct dm_buffer *b);
 void dm_bufio_mark_buffer_dirty(struct dm_buffer *b);
 
 /*
+ * Mark a part of the buffer dirty.
+ *
+ * The specified part of the buffer is scheduled to be written. dm-bufio may
+ * write the specified part of the buffer or it may write a larger superset.
+ */
+void dm_bufio_mark_partial_buffer_dirty(struct dm_buffer *b,
+					unsigned start, unsigned end);
+
+/*
  * Initiate writing of dirty buffers, without waiting for completion.
  */
 void dm_bufio_write_dirty_buffers_async(struct dm_bufio_client *c);
diff --git a/drivers/md/dm-builtin.c b/drivers/md/dm-builtin.c
index f092771878c2..8eb52e425141 100644
--- a/drivers/md/dm-builtin.c
+++ b/drivers/md/dm-builtin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "dm-core.h"
 
 /*
diff --git a/drivers/md/dm-cache-background-tracker.c b/drivers/md/dm-cache-background-tracker.c
index 707233891291..1d0af0a21fc7 100644
--- a/drivers/md/dm-cache-background-tracker.c
+++ b/drivers/md/dm-cache-background-tracker.c
@@ -161,8 +161,17 @@ EXPORT_SYMBOL_GPL(btracker_nr_demotions_queued);
 
 static bool max_work_reached(struct background_tracker *b)
 {
-	// FIXME: finish
-	return false;
+	return atomic_read(&b->pending_promotes) +
+		atomic_read(&b->pending_writebacks) +
+		atomic_read(&b->pending_demotes) >= b->max_work;
+}
+
+struct bt_work *alloc_work(struct background_tracker *b)
+{
+	if (max_work_reached(b))
+		return NULL;
+
+	return kmem_cache_alloc(b->work_cache, GFP_NOWAIT);
 }
 
 int btracker_queue(struct background_tracker *b,
@@ -174,10 +183,7 @@ int btracker_queue(struct background_tracker *b,
 	if (pwork)
 		*pwork = NULL;
 
-	if (max_work_reached(b))
-		return -ENOMEM;
-
-	w = kmem_cache_alloc(b->work_cache, GFP_NOWAIT);
+	w = alloc_work(b);
 	if (!w)
 		return -ENOMEM;
 
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 4a4e9c75fc4c..0d7212410e21 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -13,6 +13,7 @@
 #include "persistent-data/dm-transaction-manager.h"
 
 #include <linux/device-mapper.h>
+#include <linux/refcount.h>
 
 /*----------------------------------------------------------------*/
 
@@ -100,7 +101,7 @@ struct cache_disk_superblock {
 } __packed;
 
 struct dm_cache_metadata {
-	atomic_t ref_count;
+	refcount_t ref_count;
 	struct list_head list;
 
 	unsigned version;
@@ -753,7 +754,7 @@ static struct dm_cache_metadata *metadata_open(struct block_device *bdev,
 	}
 
 	cmd->version = metadata_version;
-	atomic_set(&cmd->ref_count, 1);
+	refcount_set(&cmd->ref_count, 1);
 	init_rwsem(&cmd->root_lock);
 	cmd->bdev = bdev;
 	cmd->data_block_size = data_block_size;
@@ -791,7 +792,7 @@ static struct dm_cache_metadata *lookup(struct block_device *bdev)
 
 	list_for_each_entry(cmd, &table, list)
 		if (cmd->bdev == bdev) {
-			atomic_inc(&cmd->ref_count);
+			refcount_inc(&cmd->ref_count);
 			return cmd;
 		}
 
@@ -862,7 +863,7 @@ struct dm_cache_metadata *dm_cache_metadata_open(struct block_device *bdev,
 
 void dm_cache_metadata_close(struct dm_cache_metadata *cmd)
 {
-	if (atomic_dec_and_test(&cmd->ref_count)) {
+	if (refcount_dec_and_test(&cmd->ref_count)) {
 		mutex_lock(&table_lock);
 		list_del(&cmd->list);
 		mutex_unlock(&table_lock);
diff --git a/drivers/md/dm-cache-policy-smq.c b/drivers/md/dm-cache-policy-smq.c
index e5eb9c9b4bc8..4ab23d0075f6 100644
--- a/drivers/md/dm-cache-policy-smq.c
+++ b/drivers/md/dm-cache-policy-smq.c
@@ -213,6 +213,19 @@ static void l_del(struct entry_space *es, struct ilist *l, struct entry *e)
 		l->nr_elts--;
 }
 
+static struct entry *l_pop_head(struct entry_space *es, struct ilist *l)
+{
+	struct entry *e;
+
+	for (e = l_head(es, l); e; e = l_next(es, e))
+		if (!e->sentinel) {
+			l_del(es, l, e);
+			return e;
+		}
+
+	return NULL;
+}
+
 static struct entry *l_pop_tail(struct entry_space *es, struct ilist *l)
 {
 	struct entry *e;
@@ -719,7 +732,7 @@ static struct entry *alloc_entry(struct entry_alloc *ea)
 	if (l_empty(&ea->free))
 		return NULL;
 
-	e = l_pop_tail(ea->es, &ea->free);
+	e = l_pop_head(ea->es, &ea->free);
 	init_entry(e);
 	ea->nr_allocated++;
 
@@ -1158,13 +1171,13 @@ static void clear_pending(struct smq_policy *mq, struct entry *e)
 	e->pending_work = false;
 }
 
-static void queue_writeback(struct smq_policy *mq)
+static void queue_writeback(struct smq_policy *mq, bool idle)
 {
 	int r;
 	struct policy_work work;
 	struct entry *e;
 
-	e = q_peek(&mq->dirty, mq->dirty.nr_levels, !mq->migrations_allowed);
+	e = q_peek(&mq->dirty, mq->dirty.nr_levels, idle);
 	if (e) {
 		mark_pending(mq, e);
 		q_del(&mq->dirty, e);
@@ -1174,12 +1187,16 @@ static void queue_writeback(struct smq_policy *mq)
 		work.cblock = infer_cblock(mq, e);
 
 		r = btracker_queue(mq->bg_work, &work, NULL);
-		WARN_ON_ONCE(r); // FIXME: finish, I think we have to get rid of this race.
+		if (r) {
+			clear_pending(mq, e);
+			q_push_front(&mq->dirty, e);
+		}
 	}
 }
 
 static void queue_demotion(struct smq_policy *mq)
 {
+	int r;
 	struct policy_work work;
 	struct entry *e;
 
@@ -1189,7 +1206,7 @@ static void queue_demotion(struct smq_policy *mq)
 	e = q_peek(&mq->clean, mq->clean.nr_levels / 2, true);
 	if (!e) {
 		if (!clean_target_met(mq, true))
-			queue_writeback(mq);
+			queue_writeback(mq, false);
 		return;
 	}
 
@@ -1199,12 +1216,17 @@ static void queue_demotion(struct smq_policy *mq)
 	work.op = POLICY_DEMOTE;
 	work.oblock = e->oblock;
 	work.cblock = infer_cblock(mq, e);
-	btracker_queue(mq->bg_work, &work, NULL);
+	r = btracker_queue(mq->bg_work, &work, NULL);
+	if (r) {
+		clear_pending(mq, e);
+		q_push_front(&mq->clean, e);
+	}
 }
 
 static void queue_promotion(struct smq_policy *mq, dm_oblock_t oblock,
 			    struct policy_work **workp)
 {
+	int r;
 	struct entry *e;
 	struct policy_work work;
 
@@ -1234,7 +1256,9 @@ static void queue_promotion(struct smq_policy *mq, dm_oblock_t oblock,
 	work.op = POLICY_PROMOTE;
 	work.oblock = oblock;
 	work.cblock = infer_cblock(mq, e);
-	btracker_queue(mq->bg_work, &work, workp);
+	r = btracker_queue(mq->bg_work, &work, workp);
+	if (r)
+		free_entry(&mq->cache_alloc, e);
 }
 
 /*----------------------------------------------------------------*/
@@ -1418,7 +1442,7 @@ static int smq_get_background_work(struct dm_cache_policy *p, bool idle,
 	r = btracker_issue(mq->bg_work, result);
 	if (r == -ENODATA) {
 		if (!clean_target_met(mq, idle)) {
-			queue_writeback(mq);
+			queue_writeback(mq, idle);
 			r = btracker_issue(mq->bg_work, result);
 		}
 	}
@@ -1778,7 +1802,7 @@ static struct dm_cache_policy *__smq_create(dm_cblock_t cache_size,
 	mq->next_hotspot_period = jiffies;
 	mq->next_cache_period = jiffies;
 
-	mq->bg_work = btracker_create(10240); /* FIXME: hard coded value */
+	mq->bg_work = btracker_create(4096); /* FIXME: hard coded value */
 	if (!mq->bg_work)
 		goto bad_btracker;
 
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index dcac25c2be7a..cf23a14f9c6a 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -408,9 +408,7 @@ struct cache {
 	int sectors_per_block_shift;
 
 	spinlock_t lock;
-	struct list_head deferred_cells;
 	struct bio_list deferred_bios;
-	struct bio_list deferred_writethrough_bios;
 	sector_t migration_threshold;
 	wait_queue_head_t migration_wait;
 	atomic_t nr_allocated_migrations;
@@ -446,10 +444,10 @@ struct cache {
 	struct dm_kcopyd_client *copier;
 	struct workqueue_struct *wq;
 	struct work_struct deferred_bio_worker;
-	struct work_struct deferred_writethrough_worker;
 	struct work_struct migration_worker;
 	struct delayed_work waker;
 	struct dm_bio_prison_v2 *prison;
+	struct bio_set *bs;
 
 	mempool_t *migration_pool;
 
@@ -490,15 +488,6 @@ struct per_bio_data {
 	struct dm_bio_prison_cell_v2 *cell;
 	struct dm_hook_info hook_info;
 	sector_t len;
-
-	/*
-	 * writethrough fields.  These MUST remain at the end of this
-	 * structure and the 'cache' member must be the first as it
-	 * is used to determine the offset of the writethrough fields.
-	 */
-	struct cache *cache;
-	dm_cblock_t cblock;
-	struct dm_bio_details bio_details;
 };
 
 struct dm_cache_migration {
@@ -515,19 +504,19 @@ struct dm_cache_migration {
 
 /*----------------------------------------------------------------*/
 
-static bool writethrough_mode(struct cache_features *f)
+static bool writethrough_mode(struct cache *cache)
 {
-	return f->io_mode == CM_IO_WRITETHROUGH;
+	return cache->features.io_mode == CM_IO_WRITETHROUGH;
 }
 
-static bool writeback_mode(struct cache_features *f)
+static bool writeback_mode(struct cache *cache)
 {
-	return f->io_mode == CM_IO_WRITEBACK;
+	return cache->features.io_mode == CM_IO_WRITEBACK;
 }
 
-static inline bool passthrough_mode(struct cache_features *f)
+static inline bool passthrough_mode(struct cache *cache)
 {
-	return unlikely(f->io_mode == CM_IO_PASSTHROUGH);
+	return unlikely(cache->features.io_mode == CM_IO_PASSTHROUGH);
 }
 
 /*----------------------------------------------------------------*/
@@ -537,14 +526,9 @@ static void wake_deferred_bio_worker(struct cache *cache)
 	queue_work(cache->wq, &cache->deferred_bio_worker);
 }
 
-static void wake_deferred_writethrough_worker(struct cache *cache)
-{
-	queue_work(cache->wq, &cache->deferred_writethrough_worker);
-}
-
 static void wake_migration_worker(struct cache *cache)
 {
-	if (passthrough_mode(&cache->features))
+	if (passthrough_mode(cache))
 		return;
 
 	queue_work(cache->wq, &cache->migration_worker);
@@ -567,10 +551,13 @@ static struct dm_cache_migration *alloc_migration(struct cache *cache)
 	struct dm_cache_migration *mg;
 
 	mg = mempool_alloc(cache->migration_pool, GFP_NOWAIT);
-	if (mg) {
-		mg->cache = cache;
-		atomic_inc(&mg->cache->nr_allocated_migrations);
-	}
+	if (!mg)
+		return NULL;
+
+	memset(mg, 0, sizeof(*mg));
+
+	mg->cache = cache;
+	atomic_inc(&cache->nr_allocated_migrations);
 
 	return mg;
 }
@@ -618,27 +605,16 @@ static unsigned lock_level(struct bio *bio)
  * Per bio data
  *--------------------------------------------------------------*/
 
-/*
- * If using writeback, leave out struct per_bio_data's writethrough fields.
- */
-#define PB_DATA_SIZE_WB (offsetof(struct per_bio_data, cache))
-#define PB_DATA_SIZE_WT (sizeof(struct per_bio_data))
-
-static size_t get_per_bio_data_size(struct cache *cache)
+static struct per_bio_data *get_per_bio_data(struct bio *bio)
 {
-	return writethrough_mode(&cache->features) ? PB_DATA_SIZE_WT : PB_DATA_SIZE_WB;
-}
-
-static struct per_bio_data *get_per_bio_data(struct bio *bio, size_t data_size)
-{
-	struct per_bio_data *pb = dm_per_bio_data(bio, data_size);
+	struct per_bio_data *pb = dm_per_bio_data(bio, sizeof(struct per_bio_data));
 	BUG_ON(!pb);
 	return pb;
 }
 
-static struct per_bio_data *init_per_bio_data(struct bio *bio, size_t data_size)
+static struct per_bio_data *init_per_bio_data(struct bio *bio)
 {
-	struct per_bio_data *pb = get_per_bio_data(bio, data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	pb->tick = false;
 	pb->req_nr = dm_bio_get_target_bio_nr(bio);
@@ -678,7 +654,6 @@ static void defer_bios(struct cache *cache, struct bio_list *bios)
 static bool bio_detain_shared(struct cache *cache, dm_oblock_t oblock, struct bio *bio)
 {
 	bool r;
-	size_t pb_size;
 	struct per_bio_data *pb;
 	struct dm_cell_key_v2 key;
 	dm_oblock_t end = to_oblock(from_oblock(oblock) + 1ULL);
@@ -703,8 +678,7 @@ static bool bio_detain_shared(struct cache *cache, dm_oblock_t oblock, struct bi
 	if (cell != cell_prealloc)
 		free_prison_cell(cache, cell_prealloc);
 
-	pb_size = get_per_bio_data_size(cache);
-	pb = get_per_bio_data(bio, pb_size);
+	pb = get_per_bio_data(bio);
 	pb->cell = cell;
 
 	return r;
@@ -856,28 +830,35 @@ static void remap_to_cache(struct cache *cache, struct bio *bio,
 static void check_if_tick_bio_needed(struct cache *cache, struct bio *bio)
 {
 	unsigned long flags;
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb;
 
 	spin_lock_irqsave(&cache->lock, flags);
 	if (cache->need_tick_bio && !op_is_flush(bio->bi_opf) &&
 	    bio_op(bio) != REQ_OP_DISCARD) {
+		pb = get_per_bio_data(bio);
 		pb->tick = true;
 		cache->need_tick_bio = false;
 	}
 	spin_unlock_irqrestore(&cache->lock, flags);
 }
 
-static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,
-					  dm_oblock_t oblock)
+static void __remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,
+					    dm_oblock_t oblock, bool bio_has_pbd)
 {
-	// FIXME: this is called way too much.
-	check_if_tick_bio_needed(cache, bio);
+	if (bio_has_pbd)
+		check_if_tick_bio_needed(cache, bio);
 	remap_to_origin(cache, bio);
 	if (bio_data_dir(bio) == WRITE)
 		clear_discard(cache, oblock_to_dblock(cache, oblock));
 }
 
+static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,
+					  dm_oblock_t oblock)
+{
+	// FIXME: check_if_tick_bio_needed() is called way too much through this interface
+	__remap_to_origin_clear_discard(cache, bio, oblock, true);
+}
+
 static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,
 				 dm_oblock_t oblock, dm_cblock_t cblock)
 {
@@ -908,10 +889,10 @@ static bool accountable_bio(struct cache *cache, struct bio *bio)
 
 static void accounted_begin(struct cache *cache, struct bio *bio)
 {
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb;
 
 	if (accountable_bio(cache, bio)) {
+		pb = get_per_bio_data(bio);
 		pb->len = bio_sectors(bio);
 		iot_io_begin(&cache->tracker, pb->len);
 	}
@@ -919,8 +900,7 @@ static void accounted_begin(struct cache *cache, struct bio *bio)
 
 static void accounted_complete(struct cache *cache, struct bio *bio)
 {
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	iot_io_end(&cache->tracker, pb->len);
 }
@@ -937,57 +917,26 @@ static void issue_op(struct bio *bio, void *context)
 	accounted_request(cache, bio);
 }
 
-static void defer_writethrough_bio(struct cache *cache, struct bio *bio)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&cache->lock, flags);
-	bio_list_add(&cache->deferred_writethrough_bios, bio);
-	spin_unlock_irqrestore(&cache->lock, flags);
-
-	wake_deferred_writethrough_worker(cache);
-}
-
-static void writethrough_endio(struct bio *bio)
-{
-	struct per_bio_data *pb = get_per_bio_data(bio, PB_DATA_SIZE_WT);
-
-	dm_unhook_bio(&pb->hook_info, bio);
-
-	if (bio->bi_status) {
-		bio_endio(bio);
-		return;
-	}
-
-	dm_bio_restore(&pb->bio_details, bio);
-	remap_to_cache(pb->cache, bio, pb->cblock);
-
-	/*
-	 * We can't issue this bio directly, since we're in interrupt
-	 * context.  So it gets put on a bio list for processing by the
-	 * worker thread.
-	 */
-	defer_writethrough_bio(pb->cache, bio);
-}
-
 /*
- * FIXME: send in parallel, huge latency as is.
  * When running in writethrough mode we need to send writes to clean blocks
- * to both the cache and origin devices.  In future we'd like to clone the
- * bio and send them in parallel, but for now we're doing them in
- * series as this is easier.
+ * to both the cache and origin devices.  Clone the bio and send them in parallel.
  */
-static void remap_to_origin_then_cache(struct cache *cache, struct bio *bio,
-				       dm_oblock_t oblock, dm_cblock_t cblock)
+static void remap_to_origin_and_cache(struct cache *cache, struct bio *bio,
+				      dm_oblock_t oblock, dm_cblock_t cblock)
 {
-	struct per_bio_data *pb = get_per_bio_data(bio, PB_DATA_SIZE_WT);
+	struct bio *origin_bio = bio_clone_fast(bio, GFP_NOIO, cache->bs);
+
+	BUG_ON(!origin_bio);
 
-	pb->cache = cache;
-	pb->cblock = cblock;
-	dm_hook_bio(&pb->hook_info, bio, writethrough_endio, NULL);
-	dm_bio_record(&pb->bio_details, bio);
+	bio_chain(origin_bio, bio);
+	/*
+	 * Passing false to __remap_to_origin_clear_discard() skips
+	 * all code that might use per_bio_data (since clone doesn't have it)
+	 */
+	__remap_to_origin_clear_discard(cache, origin_bio, oblock, false);
+	submit_bio(origin_bio);
 
-	remap_to_origin_clear_discard(pb->cache, bio, oblock);
+	remap_to_cache(cache, bio, cblock);
 }
 
 /*----------------------------------------------------------------
@@ -1201,6 +1150,18 @@ static void background_work_end(struct cache *cache)
 
 /*----------------------------------------------------------------*/
 
+static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)
+{
+	return (bio_data_dir(bio) == WRITE) &&
+		(bio->bi_iter.bi_size == (cache->sectors_per_block << SECTOR_SHIFT));
+}
+
+static bool optimisable_bio(struct cache *cache, struct bio *bio, dm_oblock_t block)
+{
+	return writeback_mode(cache) &&
+		(is_discarded_oblock(cache, block) || bio_writes_complete_block(cache, bio));
+}
+
 static void quiesce(struct dm_cache_migration *mg,
 		    void (*continuation)(struct work_struct *))
 {
@@ -1248,8 +1209,7 @@ static int copy(struct dm_cache_migration *mg, bool promote)
 
 static void bio_drop_shared_lock(struct cache *cache, struct bio *bio)
 {
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	if (pb->cell && dm_cell_put_v2(cache->prison, pb->cell))
 		free_prison_cell(cache, pb->cell);
@@ -1260,23 +1220,21 @@ static void overwrite_endio(struct bio *bio)
 {
 	struct dm_cache_migration *mg = bio->bi_private;
 	struct cache *cache = mg->cache;
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	dm_unhook_bio(&pb->hook_info, bio);
 
 	if (bio->bi_status)
 		mg->k.input = bio->bi_status;
 
-	queue_continuation(mg->cache->wq, &mg->k);
+	queue_continuation(cache->wq, &mg->k);
 }
 
 static void overwrite(struct dm_cache_migration *mg,
 		      void (*continuation)(struct work_struct *))
 {
 	struct bio *bio = mg->overwrite_bio;
-	size_t pb_data_size = get_per_bio_data_size(mg->cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg);
 
@@ -1474,13 +1432,51 @@ static void mg_upgrade_lock(struct work_struct *ws)
 	}
 }
 
+static void mg_full_copy(struct work_struct *ws)
+{
+	struct dm_cache_migration *mg = ws_to_mg(ws);
+	struct cache *cache = mg->cache;
+	struct policy_work *op = mg->op;
+	bool is_policy_promote = (op->op == POLICY_PROMOTE);
+
+	if ((!is_policy_promote && !is_dirty(cache, op->cblock)) ||
+	    is_discarded_oblock(cache, op->oblock)) {
+		mg_upgrade_lock(ws);
+		return;
+	}
+
+	init_continuation(&mg->k, mg_upgrade_lock);
+
+	if (copy(mg, is_policy_promote)) {
+		DMERR_LIMIT("%s: migration copy failed", cache_device_name(cache));
+		mg->k.input = BLK_STS_IOERR;
+		mg_complete(mg, false);
+	}
+}
+
 static void mg_copy(struct work_struct *ws)
 {
-	int r;
 	struct dm_cache_migration *mg = ws_to_mg(ws);
 
 	if (mg->overwrite_bio) {
 		/*
+		 * No exclusive lock was held when we last checked if the bio
+		 * was optimisable.  So we have to check again in case things
+		 * have changed (eg, the block may no longer be discarded).
+		 */
+		if (!optimisable_bio(mg->cache, mg->overwrite_bio, mg->op->oblock)) {
+			/*
+			 * Fallback to a real full copy after doing some tidying up.
+			 */
+			bool rb = bio_detain_shared(mg->cache, mg->op->oblock, mg->overwrite_bio);
+			BUG_ON(rb); /* An exclussive lock must _not_ be held for this block */
+			mg->overwrite_bio = NULL;
+			inc_io_migrations(mg->cache);
+			mg_full_copy(ws);
+			return;
+		}
+
+		/*
 		 * It's safe to do this here, even though it's new data
 		 * because all IO has been locked out of the block.
 		 *
@@ -1489,26 +1485,8 @@ static void mg_copy(struct work_struct *ws)
 		 */
 		overwrite(mg, mg_update_metadata_after_copy);
 
-	} else {
-		struct cache *cache = mg->cache;
-		struct policy_work *op = mg->op;
-		bool is_policy_promote = (op->op == POLICY_PROMOTE);
-
-		if ((!is_policy_promote && !is_dirty(cache, op->cblock)) ||
-		    is_discarded_oblock(cache, op->oblock)) {
-			mg_upgrade_lock(ws);
-			return;
-		}
-
-		init_continuation(&mg->k, mg_upgrade_lock);
-
-		r = copy(mg, is_policy_promote);
-		if (r) {
-			DMERR_LIMIT("%s: migration copy failed", cache_device_name(cache));
-			mg->k.input = BLK_STS_IOERR;
-			mg_complete(mg, false);
-		}
-	}
+	} else
+		mg_full_copy(ws);
 }
 
 static int mg_lock_writes(struct dm_cache_migration *mg)
@@ -1567,9 +1545,6 @@ static int mg_start(struct cache *cache, struct policy_work *op, struct bio *bio
 		return -ENOMEM;
 	}
 
-	memset(mg, 0, sizeof(*mg));
-
-	mg->cache = cache;
 	mg->op = op;
 	mg->overwrite_bio = bio;
 
@@ -1703,9 +1678,6 @@ static int invalidate_start(struct cache *cache, dm_cblock_t cblock,
 		return -ENOMEM;
 	}
 
-	memset(mg, 0, sizeof(*mg));
-
-	mg->cache = cache;
 	mg->overwrite_bio = bio;
 	mg->invalidate_cblock = cblock;
 	mg->invalidate_oblock = oblock;
@@ -1748,26 +1720,12 @@ static void inc_miss_counter(struct cache *cache, struct bio *bio)
 
 /*----------------------------------------------------------------*/
 
-static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)
-{
-	return (bio_data_dir(bio) == WRITE) &&
-		(bio->bi_iter.bi_size == (cache->sectors_per_block << SECTOR_SHIFT));
-}
-
-static bool optimisable_bio(struct cache *cache, struct bio *bio, dm_oblock_t block)
-{
-	return writeback_mode(&cache->features) &&
-		(is_discarded_oblock(cache, block) || bio_writes_complete_block(cache, bio));
-}
-
 static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,
 		   bool *commit_needed)
 {
 	int r, data_dir;
 	bool rb, background_queued;
 	dm_cblock_t cblock;
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
 
 	*commit_needed = false;
 
@@ -1816,6 +1774,8 @@ static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,
 	}
 
 	if (r == -ENOENT) {
+		struct per_bio_data *pb = get_per_bio_data(bio);
+
 		/*
 		 * Miss.
 		 */
@@ -1823,7 +1783,6 @@ static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,
 		if (pb->req_nr == 0) {
 			accounted_begin(cache, bio);
 			remap_to_origin_clear_discard(cache, bio, block);
-
 		} else {
 			/*
 			 * This is a duplicate writethrough io that is no
@@ -1842,18 +1801,17 @@ static int map_bio(struct cache *cache, struct bio *bio, dm_oblock_t block,
 		 * Passthrough always maps to the origin, invalidating any
 		 * cache blocks that are written to.
 		 */
-		if (passthrough_mode(&cache->features)) {
+		if (passthrough_mode(cache)) {
 			if (bio_data_dir(bio) == WRITE) {
 				bio_drop_shared_lock(cache, bio);
 				atomic_inc(&cache->stats.demotion);
 				invalidate_start(cache, cblock, block, bio);
 			} else
 				remap_to_origin_clear_discard(cache, bio, block);
-
 		} else {
-			if (bio_data_dir(bio) == WRITE && writethrough_mode(&cache->features) &&
+			if (bio_data_dir(bio) == WRITE && writethrough_mode(cache) &&
 			    !is_dirty(cache, cblock)) {
-				remap_to_origin_then_cache(cache, bio, block, cblock);
+				remap_to_origin_and_cache(cache, bio, block, cblock);
 				accounted_begin(cache, bio);
 			} else
 				remap_to_cache_dirty(cache, bio, block, cblock);
@@ -1922,8 +1880,7 @@ static blk_status_t commit_op(void *context)
 
 static bool process_flush_bio(struct cache *cache, struct bio *bio)
 {
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	if (!pb->req_nr)
 		remap_to_origin(cache, bio);
@@ -1983,28 +1940,6 @@ static void process_deferred_bios(struct work_struct *ws)
 		schedule_commit(&cache->committer);
 }
 
-static void process_deferred_writethrough_bios(struct work_struct *ws)
-{
-	struct cache *cache = container_of(ws, struct cache, deferred_writethrough_worker);
-
-	unsigned long flags;
-	struct bio_list bios;
-	struct bio *bio;
-
-	bio_list_init(&bios);
-
-	spin_lock_irqsave(&cache->lock, flags);
-	bio_list_merge(&bios, &cache->deferred_writethrough_bios);
-	bio_list_init(&cache->deferred_writethrough_bios);
-	spin_unlock_irqrestore(&cache->lock, flags);
-
-	/*
-	 * These bios have already been through accounted_begin()
-	 */
-	while ((bio = bio_list_pop(&bios)))
-		generic_make_request(bio);
-}
-
 /*----------------------------------------------------------------
  * Main worker loop
  *--------------------------------------------------------------*/
@@ -2112,6 +2047,9 @@ static void destroy(struct cache *cache)
 		kfree(cache->ctr_args[i]);
 	kfree(cache->ctr_args);
 
+	if (cache->bs)
+		bioset_free(cache->bs);
+
 	kfree(cache);
 }
 
@@ -2306,7 +2244,7 @@ static void init_features(struct cache_features *cf)
 static int parse_features(struct cache_args *ca, struct dm_arg_set *as,
 			  char **error)
 {
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 2, "Invalid number of cache feature arguments"},
 	};
 
@@ -2348,7 +2286,7 @@ static int parse_features(struct cache_args *ca, struct dm_arg_set *as,
 static int parse_policy(struct cache_args *ca, struct dm_arg_set *as,
 			char **error)
 {
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 1024, "Invalid number of policy arguments"},
 	};
 
@@ -2555,8 +2493,15 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	ti->discards_supported = true;
 	ti->split_discard_bios = false;
 
+	ti->per_io_data_size = sizeof(struct per_bio_data);
+
 	cache->features = ca->features;
-	ti->per_io_data_size = get_per_bio_data_size(cache);
+	if (writethrough_mode(cache)) {
+		/* Create bioset for writethrough bios issued to origin */
+		cache->bs = bioset_create(BIO_POOL_SIZE, 0, 0);
+		if (!cache->bs)
+			goto bad;
+	}
 
 	cache->callbacks.congested_fn = cache_is_congested;
 	dm_table_add_target_callbacks(ti->table, &cache->callbacks);
@@ -2618,7 +2563,7 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 		goto bad;
 	}
 
-	if (passthrough_mode(&cache->features)) {
+	if (passthrough_mode(cache)) {
 		bool all_clean;
 
 		r = dm_cache_metadata_all_clean(cache->cmd, &all_clean);
@@ -2637,9 +2582,7 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	}
 
 	spin_lock_init(&cache->lock);
-	INIT_LIST_HEAD(&cache->deferred_cells);
 	bio_list_init(&cache->deferred_bios);
-	bio_list_init(&cache->deferred_writethrough_bios);
 	atomic_set(&cache->nr_allocated_migrations, 0);
 	atomic_set(&cache->nr_io_migrations, 0);
 	init_waitqueue_head(&cache->migration_wait);
@@ -2678,8 +2621,6 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 		goto bad;
 	}
 	INIT_WORK(&cache->deferred_bio_worker, process_deferred_bios);
-	INIT_WORK(&cache->deferred_writethrough_worker,
-		  process_deferred_writethrough_bios);
 	INIT_WORK(&cache->migration_worker, check_migrations);
 	INIT_DELAYED_WORK(&cache->waker, do_waker);
 
@@ -2795,9 +2736,8 @@ static int cache_map(struct dm_target *ti, struct bio *bio)
 	int r;
 	bool commit_needed;
 	dm_oblock_t block = get_bio_block(cache, bio);
-	size_t pb_data_size = get_per_bio_data_size(cache);
 
-	init_per_bio_data(bio, pb_data_size);
+	init_per_bio_data(bio);
 	if (unlikely(from_oblock(block) >= from_oblock(cache->origin_blocks))) {
 		/*
 		 * This can only occur if the io goes to a partial block at
@@ -2821,13 +2761,11 @@ static int cache_map(struct dm_target *ti, struct bio *bio)
 	return r;
 }
 
-static int cache_end_io(struct dm_target *ti, struct bio *bio,
-		blk_status_t *error)
+static int cache_end_io(struct dm_target *ti, struct bio *bio, blk_status_t *error)
 {
 	struct cache *cache = ti->private;
 	unsigned long flags;
-	size_t pb_data_size = get_per_bio_data_size(cache);
-	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	struct per_bio_data *pb = get_per_bio_data(bio);
 
 	if (pb->tick) {
 		policy_tick(cache->policy, false);
@@ -3243,13 +3181,13 @@ static void cache_status(struct dm_target *ti, status_type_t type,
 		else
 			DMEMIT("1 ");
 
-		if (writethrough_mode(&cache->features))
+		if (writethrough_mode(cache))
 			DMEMIT("writethrough ");
 
-		else if (passthrough_mode(&cache->features))
+		else if (passthrough_mode(cache))
 			DMEMIT("passthrough ");
 
-		else if (writeback_mode(&cache->features))
+		else if (writeback_mode(cache))
 			DMEMIT("writeback ");
 
 		else {
@@ -3415,7 +3353,7 @@ static int process_invalidate_cblocks_message(struct cache *cache, unsigned coun
 	unsigned i;
 	struct cblock_range range;
 
-	if (!passthrough_mode(&cache->features)) {
+	if (!passthrough_mode(cache)) {
 		DMERR("%s: cache has to be in passthrough mode for invalidation",
 		      cache_device_name(cache));
 		return -EPERM;
diff --git a/drivers/md/dm-core.h b/drivers/md/dm-core.h
index 24eddbdf2ab4..6a14f945783c 100644
--- a/drivers/md/dm-core.h
+++ b/drivers/md/dm-core.h
@@ -29,7 +29,6 @@ struct dm_kobject_holder {
  * DM targets must _not_ deference a mapped_device to directly access its members!
  */
 struct mapped_device {
-	struct srcu_struct io_barrier;
 	struct mutex suspend_lock;
 
 	/*
@@ -127,6 +126,8 @@ struct mapped_device {
 	struct blk_mq_tag_set *tag_set;
 	bool use_blk_mq:1;
 	bool init_tio_pdu:1;
+
+	struct srcu_struct io_barrier;
 };
 
 void dm_init_md_queue(struct mapped_device *md);
@@ -149,5 +150,6 @@ static inline bool dm_message_test_buffer_overflow(char *result, unsigned maxlen
 
 extern atomic_t dm_global_event_nr;
 extern wait_queue_head_t dm_global_eventq;
+void dm_issue_global_event(void);
 
 #endif
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 54aef8ed97db..9fc12f556534 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -1075,7 +1075,7 @@ static int crypt_convert_block_aead(struct crypt_config *cc,
 	BUG_ON(cc->integrity_iv_size && cc->integrity_iv_size != cc->iv_size);
 
 	/* Reject unexpected unaligned bio. */
-	if (unlikely(bv_in.bv_offset & (cc->sector_size - 1)))
+	if (unlikely(bv_in.bv_len & (cc->sector_size - 1)))
 		return -EIO;
 
 	dmreq = dmreq_of_req(cc, req);
@@ -1168,7 +1168,7 @@ static int crypt_convert_block_skcipher(struct crypt_config *cc,
 	int r = 0;
 
 	/* Reject unexpected unaligned bio. */
-	if (unlikely(bv_in.bv_offset & (cc->sector_size - 1)))
+	if (unlikely(bv_in.bv_len & (cc->sector_size - 1)))
 		return -EIO;
 
 	dmreq = dmreq_of_req(cc, req);
@@ -2466,6 +2466,7 @@ static int crypt_ctr_cipher_old(struct dm_target *ti, char *cipher_in, char *key
 		kfree(cipher_api);
 		return ret;
 	}
+	kfree(cipher_api);
 
 	return 0;
 bad_mem:
@@ -2529,7 +2530,7 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar
 {
 	struct crypt_config *cc = ti->private;
 	struct dm_arg_set as;
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 6, "Invalid number of feature args"},
 	};
 	unsigned int opt_params, val;
@@ -2584,6 +2585,10 @@ static int crypt_ctr_optional(struct dm_target *ti, unsigned int argc, char **ar
 				ti->error = "Invalid feature value for sector_size";
 				return -EINVAL;
 			}
+			if (ti->len & ((cc->sector_size >> SECTOR_SHIFT) - 1)) {
+				ti->error = "Device size is not multiple of sector_size feature";
+				return -EINVAL;
+			}
 			cc->sector_shift = __ffs(cc->sector_size) - SECTOR_SHIFT;
 		} else if (!strcasecmp(opt_string, "iv_large_sectors"))
 			set_bit(CRYPT_IV_LARGE_SECTORS, &cc->cipher_flags);
diff --git a/drivers/md/dm-flakey.c b/drivers/md/dm-flakey.c
index 7146c2d9762d..b82cb1ab1eaa 100644
--- a/drivers/md/dm-flakey.c
+++ b/drivers/md/dm-flakey.c
@@ -51,7 +51,7 @@ static int parse_features(struct dm_arg_set *as, struct flakey_c *fc,
 	unsigned argc;
 	const char *arg_name;
 
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 6, "Invalid number of feature args"},
 		{1, UINT_MAX, "Invalid corrupt bio byte"},
 		{0, 255, "Invalid corrupt value to write into bio byte (0-255)"},
@@ -178,7 +178,7 @@ static int parse_features(struct dm_arg_set *as, struct flakey_c *fc,
  */
 static int flakey_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 {
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, UINT_MAX, "Invalid up interval"},
 		{0, UINT_MAX, "Invalid down interval"},
 	};
diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c
index 27c0f223f8ea..61180783ef42 100644
--- a/drivers/md/dm-integrity.c
+++ b/drivers/md/dm-integrity.c
@@ -6,6 +6,7 @@
  * This file is released under the GPL.
  */
 
+#include <linux/compiler.h>
 #include <linux/module.h>
 #include <linux/device-mapper.h>
 #include <linux/dm-io.h>
@@ -80,13 +81,13 @@ struct journal_entry {
 #define journal_entry_tag(ic, je)		((__u8 *)&(je)->last_bytes[(ic)->sectors_per_block])
 
 #if BITS_PER_LONG == 64
-#define journal_entry_set_sector(je, x)		do { smp_wmb(); ACCESS_ONCE((je)->u.sector) = cpu_to_le64(x); } while (0)
+#define journal_entry_set_sector(je, x)		do { smp_wmb(); WRITE_ONCE((je)->u.sector, cpu_to_le64(x)); } while (0)
 #define journal_entry_get_sector(je)		le64_to_cpu((je)->u.sector)
 #elif defined(CONFIG_LBDAF)
-#define journal_entry_set_sector(je, x)		do { (je)->u.s.sector_lo = cpu_to_le32(x); smp_wmb(); ACCESS_ONCE((je)->u.s.sector_hi) = cpu_to_le32((x) >> 32); } while (0)
+#define journal_entry_set_sector(je, x)		do { (je)->u.s.sector_lo = cpu_to_le32(x); smp_wmb(); WRITE_ONCE((je)->u.s.sector_hi, cpu_to_le32((x) >> 32)); } while (0)
 #define journal_entry_get_sector(je)		le64_to_cpu((je)->u.sector)
 #else
-#define journal_entry_set_sector(je, x)		do { (je)->u.s.sector_lo = cpu_to_le32(x); smp_wmb(); ACCESS_ONCE((je)->u.s.sector_hi) = cpu_to_le32(0); } while (0)
+#define journal_entry_set_sector(je, x)		do { (je)->u.s.sector_lo = cpu_to_le32(x); smp_wmb(); WRITE_ONCE((je)->u.s.sector_hi, cpu_to_le32(0)); } while (0)
 #define journal_entry_get_sector(je)		le32_to_cpu((je)->u.s.sector_lo)
 #endif
 #define journal_entry_is_unused(je)		((je)->u.s.sector_hi == cpu_to_le32(-1))
@@ -225,6 +226,8 @@ struct dm_integrity_c {
 	struct alg_spec internal_hash_alg;
 	struct alg_spec journal_crypt_alg;
 	struct alg_spec journal_mac_alg;
+
+	atomic64_t number_of_mismatches;
 };
 
 struct dm_integrity_range {
@@ -298,7 +301,7 @@ static void __DEBUG_bytes(__u8 *bytes, size_t len, const char *msg, ...)
 /*
  * DM Integrity profile, protection is performed layer above (dm-crypt)
  */
-static struct blk_integrity_profile dm_integrity_profile = {
+static const struct blk_integrity_profile dm_integrity_profile = {
 	.name			= "DM-DIF-EXT-TAG",
 	.generate_fn		= NULL,
 	.verify_fn		= NULL,
@@ -310,13 +313,15 @@ static void dm_integrity_dtr(struct dm_target *ti);
 
 static void dm_integrity_io_error(struct dm_integrity_c *ic, const char *msg, int err)
 {
+	if (err == -EILSEQ)
+		atomic64_inc(&ic->number_of_mismatches);
 	if (!cmpxchg(&ic->failed, 0, err))
 		DMERR("Error on %s: %d", msg, err);
 }
 
 static int dm_integrity_failed(struct dm_integrity_c *ic)
 {
-	return ACCESS_ONCE(ic->failed);
+	return READ_ONCE(ic->failed);
 }
 
 static commit_id_t dm_integrity_commit_id(struct dm_integrity_c *ic, unsigned i,
@@ -770,13 +775,13 @@ static void write_journal(struct dm_integrity_c *ic, unsigned commit_start, unsi
 	unsigned i;
 
 	io_comp.ic = ic;
-	io_comp.comp = COMPLETION_INITIALIZER_ONSTACK(io_comp.comp);
+	init_completion(&io_comp.comp);
 
 	if (commit_start + commit_sections <= ic->journal_sections) {
 		io_comp.in_flight = (atomic_t)ATOMIC_INIT(1);
 		if (ic->journal_io) {
 			crypt_comp_1.ic = ic;
-			crypt_comp_1.comp = COMPLETION_INITIALIZER_ONSTACK(crypt_comp_1.comp);
+			init_completion(&crypt_comp_1.comp);
 			crypt_comp_1.in_flight = (atomic_t)ATOMIC_INIT(0);
 			encrypt_journal(ic, true, commit_start, commit_sections, &crypt_comp_1);
 			wait_for_completion_io(&crypt_comp_1.comp);
@@ -792,18 +797,18 @@ static void write_journal(struct dm_integrity_c *ic, unsigned commit_start, unsi
 		to_end = ic->journal_sections - commit_start;
 		if (ic->journal_io) {
 			crypt_comp_1.ic = ic;
-			crypt_comp_1.comp = COMPLETION_INITIALIZER_ONSTACK(crypt_comp_1.comp);
+			init_completion(&crypt_comp_1.comp);
 			crypt_comp_1.in_flight = (atomic_t)ATOMIC_INIT(0);
 			encrypt_journal(ic, true, commit_start, to_end, &crypt_comp_1);
 			if (try_wait_for_completion(&crypt_comp_1.comp)) {
 				rw_journal(ic, REQ_OP_WRITE, REQ_FUA, commit_start, to_end, &io_comp);
-				crypt_comp_1.comp = COMPLETION_INITIALIZER_ONSTACK(crypt_comp_1.comp);
+				reinit_completion(&crypt_comp_1.comp);
 				crypt_comp_1.in_flight = (atomic_t)ATOMIC_INIT(0);
 				encrypt_journal(ic, true, 0, commit_sections - to_end, &crypt_comp_1);
 				wait_for_completion_io(&crypt_comp_1.comp);
 			} else {
 				crypt_comp_2.ic = ic;
-				crypt_comp_2.comp = COMPLETION_INITIALIZER_ONSTACK(crypt_comp_2.comp);
+				init_completion(&crypt_comp_2.comp);
 				crypt_comp_2.in_flight = (atomic_t)ATOMIC_INIT(0);
 				encrypt_journal(ic, true, 0, commit_sections - to_end, &crypt_comp_2);
 				wait_for_completion_io(&crypt_comp_1.comp);
@@ -1041,7 +1046,7 @@ static int dm_integrity_rw_tag(struct dm_integrity_c *ic, unsigned char *tag, se
 			memcpy(tag, dp, to_copy);
 		} else if (op == TAG_WRITE) {
 			memcpy(dp, tag, to_copy);
-			dm_bufio_mark_buffer_dirty(b);
+			dm_bufio_mark_partial_buffer_dirty(b, *metadata_offset, *metadata_offset + to_copy);
 		} else  {
 			/* e.g.: op == TAG_CMP */
 			if (unlikely(memcmp(dp, tag, to_copy))) {
@@ -1275,6 +1280,7 @@ again:
 					DMERR("Checksum failed at sector 0x%llx",
 					      (unsigned long long)(sector - ((r + ic->tag_size - 1) / ic->tag_size)));
 					r = -EILSEQ;
+					atomic64_inc(&ic->number_of_mismatches);
 				}
 				if (likely(checksums != checksums_onstack))
 					kfree(checksums);
@@ -1371,7 +1377,7 @@ static int dm_integrity_map(struct dm_target *ti, struct bio *bio)
 		struct bvec_iter iter;
 		struct bio_vec bv;
 		bio_for_each_segment(bv, bio, iter) {
-			if (unlikely((bv.bv_offset | bv.bv_len) & ((ic->sectors_per_block << SECTOR_SHIFT) - 1))) {
+			if (unlikely(bv.bv_len & ((ic->sectors_per_block << SECTOR_SHIFT) - 1))) {
 				DMERR("Bio vector (%u,%u) is not aligned on %u-sector boundary",
 					bv.bv_offset, bv.bv_len, ic->sectors_per_block);
 				return DM_MAPIO_KILL;
@@ -1540,7 +1546,7 @@ retry_kmap:
 		smp_mb();
 		if (unlikely(waitqueue_active(&ic->copy_to_journal_wait)))
 			wake_up(&ic->copy_to_journal_wait);
-		if (ACCESS_ONCE(ic->free_sectors) <= ic->free_sectors_threshold) {
+		if (READ_ONCE(ic->free_sectors) <= ic->free_sectors_threshold) {
 			queue_work(ic->commit_wq, &ic->commit_work);
 		} else {
 			schedule_autocommit(ic);
@@ -1676,7 +1682,7 @@ sleep:
 	dio->in_flight = (atomic_t)ATOMIC_INIT(2);
 
 	if (need_sync_io) {
-		read_comp = COMPLETION_INITIALIZER_ONSTACK(read_comp);
+		init_completion(&read_comp);
 		dio->completion = &read_comp;
 	} else
 		dio->completion = NULL;
@@ -1700,7 +1706,11 @@ sleep:
 
 	if (need_sync_io) {
 		wait_for_completion_io(&read_comp);
-		integrity_metadata(&dio->work);
+		if (likely(!bio->bi_status))
+			integrity_metadata(&dio->work);
+		else
+			dec_in_flight(dio);
+
 	} else {
 		INIT_WORK(&dio->work, integrity_metadata);
 		queue_work(ic->metadata_wq, &dio->work);
@@ -1789,7 +1799,7 @@ static void integrity_commit(struct work_struct *w)
 	ic->n_committed_sections += commit_sections;
 	spin_unlock_irq(&ic->endio_wait.lock);
 
-	if (ACCESS_ONCE(ic->free_sectors) <= ic->free_sectors_threshold)
+	if (READ_ONCE(ic->free_sectors) <= ic->free_sectors_threshold)
 		queue_work(ic->writer_wq, &ic->writer_work);
 
 release_flush_bios:
@@ -1834,7 +1844,7 @@ static void do_journal_write(struct dm_integrity_c *ic, unsigned write_start,
 
 	comp.ic = ic;
 	comp.in_flight = (atomic_t)ATOMIC_INIT(1);
-	comp.comp = COMPLETION_INITIALIZER_ONSTACK(comp.comp);
+	init_completion(&comp.comp);
 
 	i = write_start;
 	for (n = 0; n < write_sections; n++, i++, wraparound_section(ic, &i)) {
@@ -1971,7 +1981,7 @@ static void integrity_writer(struct work_struct *w)
 	unsigned prev_free_sectors;
 
 	/* the following test is not needed, but it tests the replay code */
-	if (ACCESS_ONCE(ic->suspending))
+	if (READ_ONCE(ic->suspending))
 		return;
 
 	spin_lock_irq(&ic->endio_wait.lock);
@@ -2061,7 +2071,7 @@ static void replay_journal(struct dm_integrity_c *ic)
 		if (ic->journal_io) {
 			struct journal_completion crypt_comp;
 			crypt_comp.ic = ic;
-			crypt_comp.comp = COMPLETION_INITIALIZER_ONSTACK(crypt_comp.comp);
+			init_completion(&crypt_comp.comp);
 			crypt_comp.in_flight = (atomic_t)ATOMIC_INIT(0);
 			encrypt_journal(ic, false, 0, ic->journal_sections, &crypt_comp);
 			wait_for_completion(&crypt_comp.comp);
@@ -2233,7 +2243,7 @@ static void dm_integrity_status(struct dm_target *ti, status_type_t type,
 
 	switch (type) {
 	case STATUSTYPE_INFO:
-		result[0] = '\0';
+		DMEMIT("%llu", (unsigned long long)atomic64_read(&ic->number_of_mismatches));
 		break;
 
 	case STATUSTYPE_TABLE: {
@@ -2634,7 +2644,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
 			memset(iv, 0x00, ivsize);
 
 			skcipher_request_set_crypt(req, sg, sg, PAGE_SIZE * ic->journal_pages + sizeof ic->commit_ids, iv);
-			comp.comp = COMPLETION_INITIALIZER_ONSTACK(comp.comp);
+			init_completion(&comp.comp);
 			comp.in_flight = (atomic_t)ATOMIC_INIT(1);
 			if (do_crypt(true, req, &comp))
 				wait_for_completion(&comp.comp);
@@ -2691,7 +2701,7 @@ static int create_journal(struct dm_integrity_c *ic, char **error)
 
 				sg_init_one(&sg, crypt_data, crypt_len);
 				skcipher_request_set_crypt(req, &sg, &sg, crypt_len, iv);
-				comp.comp = COMPLETION_INITIALIZER_ONSTACK(comp.comp);
+				init_completion(&comp.comp);
 				comp.in_flight = (atomic_t)ATOMIC_INIT(1);
 				if (do_crypt(true, req, &comp))
 					wait_for_completion(&comp.comp);
@@ -2778,7 +2788,7 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	int r;
 	unsigned extra_args;
 	struct dm_arg_set as;
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 9, "Invalid number of feature args"},
 	};
 	unsigned journal_sectors, interleave_sectors, buffer_sectors, journal_watermark, sync_msec;
@@ -2806,6 +2816,7 @@ static int dm_integrity_ctr(struct dm_target *ti, unsigned argc, char **argv)
 	bio_list_init(&ic->flush_bio_list);
 	init_waitqueue_head(&ic->copy_to_journal_wait);
 	init_completion(&ic->crypto_backoff);
+	atomic64_set(&ic->number_of_mismatches, 0);
 
 	r = dm_get_device(ti, argv[0], dm_table_get_mode(ti->table), &ic->dev);
 	if (r) {
@@ -3202,7 +3213,7 @@ static void dm_integrity_dtr(struct dm_target *ti)
 
 static struct target_type integrity_target = {
 	.name			= "integrity",
-	.version		= {1, 0, 0},
+	.version		= {1, 1, 0},
 	.module			= THIS_MODULE,
 	.features		= DM_TARGET_SINGLETON | DM_TARGET_INTEGRITY,
 	.ctr			= dm_integrity_ctr,
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index e06f0ef7d2ec..e52676fa9832 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -477,9 +477,13 @@ static int remove_all(struct file *filp, struct dm_ioctl *param, size_t param_si
  * Round up the ptr to an 8-byte boundary.
  */
 #define ALIGN_MASK 7
+static inline size_t align_val(size_t val)
+{
+	return (val + ALIGN_MASK) & ~ALIGN_MASK;
+}
 static inline void *align_ptr(void *ptr)
 {
-	return (void *) (((size_t) (ptr + ALIGN_MASK)) & ~ALIGN_MASK);
+	return (void *)align_val((size_t)ptr);
 }
 
 /*
@@ -505,7 +509,7 @@ static int list_devices(struct file *filp, struct dm_ioctl *param, size_t param_
 	struct hash_cell *hc;
 	size_t len, needed = 0;
 	struct gendisk *disk;
-	struct dm_name_list *nl, *old_nl = NULL;
+	struct dm_name_list *orig_nl, *nl, *old_nl = NULL;
 	uint32_t *event_nr;
 
 	down_write(&_hash_lock);
@@ -516,17 +520,15 @@ static int list_devices(struct file *filp, struct dm_ioctl *param, size_t param_
 	 */
 	for (i = 0; i < NUM_BUCKETS; i++) {
 		list_for_each_entry (hc, _name_buckets + i, name_list) {
-			needed += sizeof(struct dm_name_list);
-			needed += strlen(hc->name) + 1;
-			needed += ALIGN_MASK;
-			needed += (sizeof(uint32_t) + ALIGN_MASK) & ~ALIGN_MASK;
+			needed += align_val(offsetof(struct dm_name_list, name) + strlen(hc->name) + 1);
+			needed += align_val(sizeof(uint32_t));
 		}
 	}
 
 	/*
 	 * Grab our output buffer.
 	 */
-	nl = get_result_buffer(param, param_size, &len);
+	nl = orig_nl = get_result_buffer(param, param_size, &len);
 	if (len < needed) {
 		param->flags |= DM_BUFFER_FULL_FLAG;
 		goto out;
@@ -549,11 +551,16 @@ static int list_devices(struct file *filp, struct dm_ioctl *param, size_t param_
 			strcpy(nl->name, hc->name);
 
 			old_nl = nl;
-			event_nr = align_ptr(((void *) (nl + 1)) + strlen(hc->name) + 1);
+			event_nr = align_ptr(nl->name + strlen(hc->name) + 1);
 			*event_nr = dm_get_event_nr(hc->md);
 			nl = align_ptr(event_nr + 1);
 		}
 	}
+	/*
+	 * If mismatch happens, security may be compromised due to buffer
+	 * overflow, so it's better to crash.
+	 */
+	BUG_ON((char *)nl - (char *)orig_nl != needed);
 
  out:
 	up_write(&_hash_lock);
@@ -1621,7 +1628,8 @@ static int target_message(struct file *filp, struct dm_ioctl *param, size_t para
  * which has a variable size, is not used by the function processing
  * the ioctl.
  */
-#define IOCTL_FLAGS_NO_PARAMS	1
+#define IOCTL_FLAGS_NO_PARAMS		1
+#define IOCTL_FLAGS_ISSUE_GLOBAL_EVENT	2
 
 /*-----------------------------------------------------------------
  * Implementation of open/close/ioctl on the special char
@@ -1629,18 +1637,18 @@ static int target_message(struct file *filp, struct dm_ioctl *param, size_t para
  *---------------------------------------------------------------*/
 static ioctl_fn lookup_ioctl(unsigned int cmd, int *ioctl_flags)
 {
-	static struct {
+	static const struct {
 		int cmd;
 		int flags;
 		ioctl_fn fn;
 	} _ioctls[] = {
 		{DM_VERSION_CMD, 0, NULL}, /* version is dealt with elsewhere */
-		{DM_REMOVE_ALL_CMD, IOCTL_FLAGS_NO_PARAMS, remove_all},
+		{DM_REMOVE_ALL_CMD, IOCTL_FLAGS_NO_PARAMS | IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, remove_all},
 		{DM_LIST_DEVICES_CMD, 0, list_devices},
 
-		{DM_DEV_CREATE_CMD, IOCTL_FLAGS_NO_PARAMS, dev_create},
-		{DM_DEV_REMOVE_CMD, IOCTL_FLAGS_NO_PARAMS, dev_remove},
-		{DM_DEV_RENAME_CMD, 0, dev_rename},
+		{DM_DEV_CREATE_CMD, IOCTL_FLAGS_NO_PARAMS | IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, dev_create},
+		{DM_DEV_REMOVE_CMD, IOCTL_FLAGS_NO_PARAMS | IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, dev_remove},
+		{DM_DEV_RENAME_CMD, IOCTL_FLAGS_ISSUE_GLOBAL_EVENT, dev_rename},
 		{DM_DEV_SUSPEND_CMD, IOCTL_FLAGS_NO_PARAMS, dev_suspend},
 		{DM_DEV_STATUS_CMD, IOCTL_FLAGS_NO_PARAMS, dev_status},
 		{DM_DEV_WAIT_CMD, 0, dev_wait},
@@ -1869,6 +1877,9 @@ static int ctl_ioctl(struct file *file, uint command, struct dm_ioctl __user *us
 	    unlikely(ioctl_flags & IOCTL_FLAGS_NO_PARAMS))
 		DMERR("ioctl %d tried to output some data but has IOCTL_FLAGS_NO_PARAMS set", cmd);
 
+	if (!r && ioctl_flags & IOCTL_FLAGS_ISSUE_GLOBAL_EVENT)
+		dm_issue_global_event();
+
 	/*
 	 * Copy the results back to userland.
 	 */
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c
index cf2c67e35eaf..eb45cc3df31d 100644
--- a/drivers/md/dm-kcopyd.c
+++ b/drivers/md/dm-kcopyd.c
@@ -107,7 +107,7 @@ static void io_job_start(struct dm_kcopyd_throttle *t)
 try_again:
 	spin_lock_irq(&throttle_spinlock);
 
-	throttle = ACCESS_ONCE(t->throttle);
+	throttle = READ_ONCE(t->throttle);
 
 	if (likely(throttle >= 100))
 		goto skip_limit;
@@ -157,7 +157,7 @@ static void io_job_finish(struct dm_kcopyd_throttle *t)
 
 	t->num_io_jobs--;
 
-	if (likely(ACCESS_ONCE(t->throttle) >= 100))
+	if (likely(READ_ONCE(t->throttle) >= 100))
 		goto skip_limit;
 
 	if (!t->num_io_jobs) {
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index 405eca206d67..d5f8eff7c11d 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -184,20 +184,6 @@ static size_t linear_dax_copy_from_iter(struct dm_target *ti, pgoff_t pgoff,
 	return dax_copy_from_iter(dax_dev, pgoff, addr, bytes, i);
 }
 
-static void linear_dax_flush(struct dm_target *ti, pgoff_t pgoff, void *addr,
-		size_t size)
-{
-	struct linear_c *lc = ti->private;
-	struct block_device *bdev = lc->dev->bdev;
-	struct dax_device *dax_dev = lc->dev->dax_dev;
-	sector_t dev_sector, sector = pgoff * PAGE_SECTORS;
-
-	dev_sector = linear_map_sector(ti, sector);
-	if (bdev_dax_pgoff(bdev, dev_sector, ALIGN(size, PAGE_SIZE), &pgoff))
-		return;
-	dax_flush(dax_dev, pgoff, addr, size);
-}
-
 static struct target_type linear_target = {
 	.name   = "linear",
 	.version = {1, 4, 0},
@@ -212,7 +198,6 @@ static struct target_type linear_target = {
 	.iterate_devices = linear_iterate_devices,
 	.direct_access = linear_dax_direct_access,
 	.dax_copy_from_iter = linear_dax_copy_from_iter,
-	.dax_flush = linear_dax_flush,
 };
 
 int __init dm_linear_init(void)
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index 534a254eb977..189badbeddaf 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -10,9 +10,11 @@
 #include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/bio.h>
+#include <linux/dax.h>
 #include <linux/slab.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
+#include <linux/uio.h>
 
 #define DM_MSG_PREFIX "log-writes"
 
@@ -100,6 +102,7 @@ struct log_writes_c {
 	struct dm_dev *logdev;
 	u64 logged_entries;
 	u32 sectorsize;
+	u32 sectorshift;
 	atomic_t io_blocks;
 	atomic_t pending_blocks;
 	sector_t next_sector;
@@ -128,6 +131,18 @@ struct per_bio_data {
 	struct pending_block *block;
 };
 
+static inline sector_t bio_to_dev_sectors(struct log_writes_c *lc,
+					  sector_t sectors)
+{
+	return sectors >> (lc->sectorshift - SECTOR_SHIFT);
+}
+
+static inline sector_t dev_to_bio_sectors(struct log_writes_c *lc,
+					  sector_t sectors)
+{
+	return sectors << (lc->sectorshift - SECTOR_SHIFT);
+}
+
 static void put_pending_block(struct log_writes_c *lc)
 {
 	if (atomic_dec_and_test(&lc->pending_blocks)) {
@@ -233,27 +248,108 @@ error:
 	return -1;
 }
 
+static int write_inline_data(struct log_writes_c *lc, void *entry,
+			     size_t entrylen, void *data, size_t datalen,
+			     sector_t sector)
+{
+	int num_pages, bio_pages, pg_datalen, pg_sectorlen, i;
+	struct page *page;
+	struct bio *bio;
+	size_t ret;
+	void *ptr;
+
+	while (datalen) {
+		num_pages = ALIGN(datalen, PAGE_SIZE) >> PAGE_SHIFT;
+		bio_pages = min(num_pages, BIO_MAX_PAGES);
+
+		atomic_inc(&lc->io_blocks);
+
+		bio = bio_alloc(GFP_KERNEL, bio_pages);
+		if (!bio) {
+			DMERR("Couldn't alloc inline data bio");
+			goto error;
+		}
+
+		bio->bi_iter.bi_size = 0;
+		bio->bi_iter.bi_sector = sector;
+		bio_set_dev(bio, lc->logdev->bdev);
+		bio->bi_end_io = log_end_io;
+		bio->bi_private = lc;
+		bio_set_op_attrs(bio, REQ_OP_WRITE, 0);
+
+		for (i = 0; i < bio_pages; i++) {
+			pg_datalen = min_t(int, datalen, PAGE_SIZE);
+			pg_sectorlen = ALIGN(pg_datalen, lc->sectorsize);
+
+			page = alloc_page(GFP_KERNEL);
+			if (!page) {
+				DMERR("Couldn't alloc inline data page");
+				goto error_bio;
+			}
+
+			ptr = kmap_atomic(page);
+			memcpy(ptr, data, pg_datalen);
+			if (pg_sectorlen > pg_datalen)
+				memset(ptr + pg_datalen, 0, pg_sectorlen - pg_datalen);
+			kunmap_atomic(ptr);
+
+			ret = bio_add_page(bio, page, pg_sectorlen, 0);
+			if (ret != pg_sectorlen) {
+				DMERR("Couldn't add page of inline data");
+				__free_page(page);
+				goto error_bio;
+			}
+
+			datalen -= pg_datalen;
+			data	+= pg_datalen;
+		}
+		submit_bio(bio);
+
+		sector += bio_pages * PAGE_SECTORS;
+	}
+	return 0;
+error_bio:
+	bio_free_pages(bio);
+	bio_put(bio);
+error:
+	put_io_block(lc);
+	return -1;
+}
+
 static int log_one_block(struct log_writes_c *lc,
 			 struct pending_block *block, sector_t sector)
 {
 	struct bio *bio;
 	struct log_write_entry entry;
-	size_t ret;
+	size_t metadatalen, ret;
 	int i;
 
 	entry.sector = cpu_to_le64(block->sector);
 	entry.nr_sectors = cpu_to_le64(block->nr_sectors);
 	entry.flags = cpu_to_le64(block->flags);
 	entry.data_len = cpu_to_le64(block->datalen);
+
+	metadatalen = (block->flags & LOG_MARK_FLAG) ? block->datalen : 0;
 	if (write_metadata(lc, &entry, sizeof(entry), block->data,
-			   block->datalen, sector)) {
+			   metadatalen, sector)) {
 		free_pending_block(lc, block);
 		return -1;
 	}
 
+	sector += dev_to_bio_sectors(lc, 1);
+
+	if (block->datalen && metadatalen == 0) {
+		if (write_inline_data(lc, &entry, sizeof(entry), block->data,
+				      block->datalen, sector)) {
+			free_pending_block(lc, block);
+			return -1;
+		}
+		/* we don't support both inline data & bio data */
+		goto out;
+	}
+
 	if (!block->vec_cnt)
 		goto out;
-	sector++;
 
 	atomic_inc(&lc->io_blocks);
 	bio = bio_alloc(GFP_KERNEL, min(block->vec_cnt, BIO_MAX_PAGES));
@@ -354,10 +450,9 @@ static int log_writes_kthread(void *arg)
 				goto next;
 
 			sector = lc->next_sector;
-			if (block->flags & LOG_DISCARD_FLAG)
-				lc->next_sector++;
-			else
-				lc->next_sector += block->nr_sectors + 1;
+			if (!(block->flags & LOG_DISCARD_FLAG))
+				lc->next_sector += dev_to_bio_sectors(lc, block->nr_sectors);
+			lc->next_sector += dev_to_bio_sectors(lc, 1);
 
 			/*
 			 * Apparently the size of the device may not be known
@@ -399,7 +494,7 @@ next:
 		if (!try_to_freeze()) {
 			set_current_state(TASK_INTERRUPTIBLE);
 			if (!kthread_should_stop() &&
-			    !atomic_read(&lc->pending_blocks))
+			    list_empty(&lc->logging_blocks))
 				schedule();
 			__set_current_state(TASK_RUNNING);
 		}
@@ -435,7 +530,6 @@ static int log_writes_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	INIT_LIST_HEAD(&lc->unflushed_blocks);
 	INIT_LIST_HEAD(&lc->logging_blocks);
 	init_waitqueue_head(&lc->wait);
-	lc->sectorsize = 1 << SECTOR_SHIFT;
 	atomic_set(&lc->io_blocks, 0);
 	atomic_set(&lc->pending_blocks, 0);
 
@@ -455,6 +549,8 @@ static int log_writes_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		goto bad;
 	}
 
+	lc->sectorsize = bdev_logical_block_size(lc->dev->bdev);
+	lc->sectorshift = ilog2(lc->sectorsize);
 	lc->log_kthread = kthread_run(log_writes_kthread, lc, "log-write");
 	if (IS_ERR(lc->log_kthread)) {
 		ret = PTR_ERR(lc->log_kthread);
@@ -464,8 +560,12 @@ static int log_writes_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		goto bad;
 	}
 
-	/* We put the super at sector 0, start logging at sector 1 */
-	lc->next_sector = 1;
+	/*
+	 * next_sector is in 512b sectors to correspond to what bi_sector expects.
+	 * The super starts at sector 0, and the next_sector is the next logical
+	 * one based on the sectorsize of the device.
+	 */
+	lc->next_sector = lc->sectorsize >> SECTOR_SHIFT;
 	lc->logging_enabled = true;
 	lc->end_sector = logdev_last_sector(lc);
 	lc->device_supports_discard = true;
@@ -510,6 +610,51 @@ static int log_mark(struct log_writes_c *lc, char *data)
 	return 0;
 }
 
+static int log_dax(struct log_writes_c *lc, sector_t sector, size_t bytes,
+		   struct iov_iter *i)
+{
+	struct pending_block *block;
+
+	if (!bytes)
+		return 0;
+
+	block = kzalloc(sizeof(struct pending_block), GFP_KERNEL);
+	if (!block) {
+		DMERR("Error allocating dax pending block");
+		return -ENOMEM;
+	}
+
+	block->data = kzalloc(bytes, GFP_KERNEL);
+	if (!block->data) {
+		DMERR("Error allocating dax data space");
+		kfree(block);
+		return -ENOMEM;
+	}
+
+	/* write data provided via the iterator */
+	if (!copy_from_iter(block->data, bytes, i)) {
+		DMERR("Error copying dax data");
+		kfree(block->data);
+		kfree(block);
+		return -EIO;
+	}
+
+	/* rewind the iterator so that the block driver can use it */
+	iov_iter_revert(i, bytes);
+
+	block->datalen = bytes;
+	block->sector = bio_to_dev_sectors(lc, sector);
+	block->nr_sectors = ALIGN(bytes, lc->sectorsize) >> lc->sectorshift;
+
+	atomic_inc(&lc->pending_blocks);
+	spin_lock_irq(&lc->blocks_lock);
+	list_add_tail(&block->list, &lc->unflushed_blocks);
+	spin_unlock_irq(&lc->blocks_lock);
+	wake_up_process(lc->log_kthread);
+
+	return 0;
+}
+
 static void log_writes_dtr(struct dm_target *ti)
 {
 	struct log_writes_c *lc = ti->private;
@@ -599,8 +744,8 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio)
 	if (discard_bio)
 		block->flags |= LOG_DISCARD_FLAG;
 
-	block->sector = bio->bi_iter.bi_sector;
-	block->nr_sectors = bio_sectors(bio);
+	block->sector = bio_to_dev_sectors(lc, bio->bi_iter.bi_sector);
+	block->nr_sectors = bio_to_dev_sectors(lc, bio_sectors(bio));
 
 	/* We don't need the data, just submit */
 	if (discard_bio) {
@@ -767,14 +912,54 @@ static void log_writes_io_hints(struct dm_target *ti, struct queue_limits *limit
 
 	if (!q || !blk_queue_discard(q)) {
 		lc->device_supports_discard = false;
-		limits->discard_granularity = 1 << SECTOR_SHIFT;
+		limits->discard_granularity = lc->sectorsize;
 		limits->max_discard_sectors = (UINT_MAX >> SECTOR_SHIFT);
 	}
+	limits->logical_block_size = bdev_logical_block_size(lc->dev->bdev);
+	limits->physical_block_size = bdev_physical_block_size(lc->dev->bdev);
+	limits->io_min = limits->physical_block_size;
+}
+
+static long log_writes_dax_direct_access(struct dm_target *ti, pgoff_t pgoff,
+					 long nr_pages, void **kaddr, pfn_t *pfn)
+{
+	struct log_writes_c *lc = ti->private;
+	sector_t sector = pgoff * PAGE_SECTORS;
+	int ret;
+
+	ret = bdev_dax_pgoff(lc->dev->bdev, sector, nr_pages * PAGE_SIZE, &pgoff);
+	if (ret)
+		return ret;
+	return dax_direct_access(lc->dev->dax_dev, pgoff, nr_pages, kaddr, pfn);
+}
+
+static size_t log_writes_dax_copy_from_iter(struct dm_target *ti,
+					    pgoff_t pgoff, void *addr, size_t bytes,
+					    struct iov_iter *i)
+{
+	struct log_writes_c *lc = ti->private;
+	sector_t sector = pgoff * PAGE_SECTORS;
+	int err;
+
+	if (bdev_dax_pgoff(lc->dev->bdev, sector, ALIGN(bytes, PAGE_SIZE), &pgoff))
+		return 0;
+
+	/* Don't bother doing anything if logging has been disabled */
+	if (!lc->logging_enabled)
+		goto dax_copy;
+
+	err = log_dax(lc, sector, bytes, i);
+	if (err) {
+		DMWARN("Error %d logging DAX write", err);
+		return 0;
+	}
+dax_copy:
+	return dax_copy_from_iter(lc->dev->dax_dev, pgoff, addr, bytes, i);
 }
 
 static struct target_type log_writes_target = {
 	.name   = "log-writes",
-	.version = {1, 0, 0},
+	.version = {1, 1, 0},
 	.module = THIS_MODULE,
 	.ctr    = log_writes_ctr,
 	.dtr    = log_writes_dtr,
@@ -785,6 +970,8 @@ static struct target_type log_writes_target = {
 	.message = log_writes_message,
 	.iterate_devices = log_writes_iterate_devices,
 	.io_hints = log_writes_io_hints,
+	.direct_access = log_writes_dax_direct_access,
+	.dax_copy_from_iter = log_writes_dax_copy_from_iter,
 };
 
 static int __init dm_log_writes_init(void)
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 96aedaac2c64..3f88c9d32f7e 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -366,7 +366,7 @@ static struct pgpath *choose_path_in_pg(struct multipath *m,
 
 	pgpath = path_to_pgpath(path);
 
-	if (unlikely(lockless_dereference(m->current_pg) != pg)) {
+	if (unlikely(READ_ONCE(m->current_pg) != pg)) {
 		/* Only update current_pgpath if pg changed */
 		spin_lock_irqsave(&m->lock, flags);
 		m->current_pgpath = pgpath;
@@ -390,7 +390,7 @@ static struct pgpath *choose_pgpath(struct multipath *m, size_t nr_bytes)
 	}
 
 	/* Were we instructed to switch PG? */
-	if (lockless_dereference(m->next_pg)) {
+	if (READ_ONCE(m->next_pg)) {
 		spin_lock_irqsave(&m->lock, flags);
 		pg = m->next_pg;
 		if (!pg) {
@@ -406,7 +406,7 @@ static struct pgpath *choose_pgpath(struct multipath *m, size_t nr_bytes)
 
 	/* Don't change PG until it has no remaining paths */
 check_current_pg:
-	pg = lockless_dereference(m->current_pg);
+	pg = READ_ONCE(m->current_pg);
 	if (pg) {
 		pgpath = choose_path_in_pg(m, pg, nr_bytes);
 		if (!IS_ERR_OR_NULL(pgpath))
@@ -473,7 +473,7 @@ static int multipath_clone_and_map(struct dm_target *ti, struct request *rq,
 	struct request *clone;
 
 	/* Do we need to select a new pgpath? */
-	pgpath = lockless_dereference(m->current_pgpath);
+	pgpath = READ_ONCE(m->current_pgpath);
 	if (!pgpath || !test_bit(MPATHF_QUEUE_IO, &m->flags))
 		pgpath = choose_pgpath(m, nr_bytes);
 
@@ -535,7 +535,7 @@ static int __multipath_map_bio(struct multipath *m, struct bio *bio, struct dm_m
 	bool queue_io;
 
 	/* Do we need to select a new pgpath? */
-	pgpath = lockless_dereference(m->current_pgpath);
+	pgpath = READ_ONCE(m->current_pgpath);
 	queue_io = test_bit(MPATHF_QUEUE_IO, &m->flags);
 	if (!pgpath || !queue_io)
 		pgpath = choose_pgpath(m, nr_bytes);
@@ -632,6 +632,10 @@ static void process_queued_bios(struct work_struct *work)
 		case DM_MAPIO_REMAPPED:
 			generic_make_request(bio);
 			break;
+		case 0:
+			break;
+		default:
+			WARN_ONCE(true, "__multipath_map_bio() returned %d\n", r);
 		}
 	}
 	blk_finish_plug(&plug);
@@ -698,7 +702,7 @@ static int parse_path_selector(struct dm_arg_set *as, struct priority_group *pg,
 	struct path_selector_type *pst;
 	unsigned ps_argc;
 
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 1024, "invalid number of path selector args"},
 	};
 
@@ -822,7 +826,7 @@ retain:
 static struct priority_group *parse_priority_group(struct dm_arg_set *as,
 						   struct multipath *m)
 {
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{1, 1024, "invalid number of paths"},
 		{0, 1024, "invalid number of selector args"}
 	};
@@ -898,7 +902,7 @@ static int parse_hw_handler(struct dm_arg_set *as, struct multipath *m)
 	int ret;
 	struct dm_target *ti = m->ti;
 
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 1024, "invalid number of hardware handler args"},
 	};
 
@@ -950,7 +954,7 @@ static int parse_features(struct dm_arg_set *as, struct multipath *m)
 	struct dm_target *ti = m->ti;
 	const char *arg_name;
 
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 8, "invalid number of feature args"},
 		{1, 50, "pg_init_retries must be between 1 and 50"},
 		{0, 60000, "pg_init_delay_msecs must be between 0 and 60000"},
@@ -1019,7 +1023,7 @@ static int parse_features(struct dm_arg_set *as, struct multipath *m)
 static int multipath_ctr(struct dm_target *ti, unsigned argc, char **argv)
 {
 	/* target arguments */
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 1024, "invalid number of priority groups"},
 		{0, 1024, "invalid initial priority group number"},
 	};
@@ -1379,6 +1383,7 @@ static void pg_init_done(void *data, int errors)
 	case SCSI_DH_RETRY:
 		/* Wait before retrying. */
 		delay_retry = 1;
+		/* fall through */
 	case SCSI_DH_IMM_RETRY:
 	case SCSI_DH_RES_TEMP_UNAVAIL:
 		if (pg_init_limit_reached(m, pgpath))
@@ -1799,7 +1804,7 @@ static int multipath_prepare_ioctl(struct dm_target *ti,
 	struct pgpath *current_pgpath;
 	int r;
 
-	current_pgpath = lockless_dereference(m->current_pgpath);
+	current_pgpath = READ_ONCE(m->current_pgpath);
 	if (!current_pgpath)
 		current_pgpath = choose_pgpath(m, 0);
 
@@ -1821,7 +1826,7 @@ static int multipath_prepare_ioctl(struct dm_target *ti,
 	}
 
 	if (r == -ENOTCONN) {
-		if (!lockless_dereference(m->current_pg)) {
+		if (!READ_ONCE(m->current_pg)) {
 			/* Path status changed, redo selection */
 			(void) choose_pgpath(m, 0);
 		}
@@ -1890,9 +1895,9 @@ static int multipath_busy(struct dm_target *ti)
 		return (m->queue_mode != DM_TYPE_MQ_REQUEST_BASED);
 
 	/* Guess which priority_group will be used at next mapping time */
-	pg = lockless_dereference(m->current_pg);
-	next_pg = lockless_dereference(m->next_pg);
-	if (unlikely(!lockless_dereference(m->current_pgpath) && next_pg))
+	pg = READ_ONCE(m->current_pg);
+	next_pg = READ_ONCE(m->next_pg);
+	if (unlikely(!READ_ONCE(m->current_pgpath) && next_pg))
 		pg = next_pg;
 
 	if (!pg) {
diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 5bfe285ea9d1..366c625b9591 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -12,7 +12,7 @@
 #include "raid1.h"
 #include "raid5.h"
 #include "raid10.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 
 #include <linux/device-mapper.h>
 
@@ -2143,13 +2143,6 @@ static int super_load(struct md_rdev *rdev, struct md_rdev *refdev)
 	struct dm_raid_superblock *refsb;
 	uint64_t events_sb, events_refsb;
 
-	rdev->sb_start = 0;
-	rdev->sb_size = bdev_logical_block_size(rdev->meta_bdev);
-	if (rdev->sb_size < sizeof(*sb) || rdev->sb_size > PAGE_SIZE) {
-		DMERR("superblock size of a logical block is no longer valid");
-		return -EINVAL;
-	}
-
 	r = read_disk_sb(rdev, rdev->sb_size, false);
 	if (r)
 		return r;
@@ -2494,6 +2487,17 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs)
 		if (test_bit(Journal, &rdev->flags))
 			continue;
 
+		if (!rdev->meta_bdev)
+			continue;
+
+		/* Set superblock offset/size for metadata device. */
+		rdev->sb_start = 0;
+		rdev->sb_size = bdev_logical_block_size(rdev->meta_bdev);
+		if (rdev->sb_size < sizeof(struct dm_raid_superblock) || rdev->sb_size > PAGE_SIZE) {
+			DMERR("superblock size of a logical block is no longer valid");
+			return -EINVAL;
+		}
+
 		/*
 		 * Skipping super_load due to CTR_FLAG_SYNC will cause
 		 * the array to undergo initialization again as
@@ -2506,9 +2510,6 @@ static int analyse_superblocks(struct dm_target *ti, struct raid_set *rs)
 		if (test_bit(__CTR_FLAG_SYNC, &rs->ctr_flags))
 			continue;
 
-		if (!rdev->meta_bdev)
-			continue;
-
 		r = super_load(rdev, freshest);
 
 		switch (r) {
@@ -3238,7 +3239,7 @@ static int raid_map(struct dm_target *ti, struct bio *bio)
 	if (unlikely(bio_end_sector(bio) > mddev->array_sectors))
 		return DM_MAPIO_REQUEUE;
 
-	mddev->pers->make_request(mddev, bio);
+	md_handle_request(mddev, bio);
 
 	return DM_MAPIO_SUBMITTED;
 }
@@ -3297,11 +3298,10 @@ static const char *__raid_dev_status(struct raid_set *rs, struct md_rdev *rdev,
 static sector_t rs_get_progress(struct raid_set *rs,
 				sector_t resync_max_sectors, bool *array_in_sync)
 {
-	sector_t r, recovery_cp, curr_resync_completed;
+	sector_t r, curr_resync_completed;
 	struct mddev *mddev = &rs->md;
 
 	curr_resync_completed = mddev->curr_resync_completed ?: mddev->recovery_cp;
-	recovery_cp = mddev->recovery_cp;
 	*array_in_sync = false;
 
 	if (rs_is_raid0(rs)) {
@@ -3330,9 +3330,11 @@ static sector_t rs_get_progress(struct raid_set *rs,
 		} else if (test_bit(MD_RECOVERY_RUNNING, &mddev->recovery))
 			r = curr_resync_completed;
 		else
-			r = recovery_cp;
+			r = mddev->recovery_cp;
 
-		if (r == MaxSector) {
+		if ((r == MaxSector) ||
+		    (test_bit(MD_RECOVERY_DONE, &mddev->recovery) &&
+		     (mddev->curr_resync_completed == resync_max_sectors))) {
 			/*
 			 * Sync complete.
 			 */
@@ -3628,8 +3630,11 @@ static void raid_postsuspend(struct dm_target *ti)
 {
 	struct raid_set *rs = ti->private;
 
-	if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
+	if (!test_and_set_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) {
+		mddev_lock_nointr(&rs->md);
 		mddev_suspend(&rs->md);
+		mddev_unlock(&rs->md);
+	}
 
 	rs->md.ro = 1;
 }
@@ -3886,13 +3891,16 @@ static void raid_resume(struct dm_target *ti)
 	if (!(rs->ctr_flags & RESUME_STAY_FROZEN_FLAGS))
 		clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
 
-	if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags))
+	if (test_and_clear_bit(RT_FLAG_RS_SUSPENDED, &rs->runtime_flags)) {
+		mddev_lock_nointr(mddev);
 		mddev_resume(mddev);
+		mddev_unlock(mddev);
+	}
 }
 
 static struct target_type raid_target = {
 	.name = "raid",
-	.version = {1, 12, 1},
+	.version = {1, 13, 0},
 	.module = THIS_MODULE,
 	.ctr = raid_ctr,
 	.dtr = raid_dtr,
diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
index c6ebc5b1e00e..9d32f25489c2 100644
--- a/drivers/md/dm-rq.c
+++ b/drivers/md/dm-rq.c
@@ -56,7 +56,7 @@ static unsigned dm_get_blk_mq_queue_depth(void)
 
 int dm_request_based(struct mapped_device *md)
 {
-	return blk_queue_stackable(md->queue);
+	return queue_is_rq_based(md->queue);
 }
 
 static void dm_old_start_queue(struct request_queue *q)
@@ -117,9 +117,9 @@ static void end_clone_bio(struct bio *clone)
 	struct dm_rq_clone_bio_info *info =
 		container_of(clone, struct dm_rq_clone_bio_info, clone);
 	struct dm_rq_target_io *tio = info->tio;
-	struct bio *bio = info->orig;
 	unsigned int nr_bytes = info->orig->bi_iter.bi_size;
 	blk_status_t error = clone->bi_status;
+	bool is_last = !clone->bi_next;
 
 	bio_put(clone);
 
@@ -137,28 +137,23 @@ static void end_clone_bio(struct bio *clone)
 		 * when the request is completed.
 		 */
 		tio->error = error;
-		return;
+		goto exit;
 	}
 
 	/*
 	 * I/O for the bio successfully completed.
 	 * Notice the data completion to the upper layer.
 	 */
-
-	/*
-	 * bios are processed from the head of the list.
-	 * So the completing bio should always be rq->bio.
-	 * If it's not, something wrong is happening.
-	 */
-	if (tio->orig->bio != bio)
-		DMERR("bio completion is going in the middle of the request");
+	tio->completed += nr_bytes;
 
 	/*
 	 * Update the original request.
 	 * Do not use blk_end_request() here, because it may complete
 	 * the original request before the clone, and break the ordering.
 	 */
-	blk_update_request(tio->orig, BLK_STS_OK, nr_bytes);
+	if (is_last)
+ exit:
+		blk_update_request(tio->orig, BLK_STS_OK, tio->completed);
 }
 
 static struct dm_rq_target_io *tio_from_request(struct request *rq)
@@ -237,14 +232,14 @@ static void dm_end_request(struct request *clone, blk_status_t error)
 /*
  * Requeue the original request of a clone.
  */
-static void dm_old_requeue_request(struct request *rq)
+static void dm_old_requeue_request(struct request *rq, unsigned long delay_ms)
 {
 	struct request_queue *q = rq->q;
 	unsigned long flags;
 
 	spin_lock_irqsave(q->queue_lock, flags);
 	blk_requeue_request(q, rq);
-	blk_run_queue_async(q);
+	blk_delay_queue(q, delay_ms);
 	spin_unlock_irqrestore(q->queue_lock, flags);
 }
 
@@ -270,6 +265,7 @@ static void dm_requeue_original_request(struct dm_rq_target_io *tio, bool delay_
 	struct mapped_device *md = tio->md;
 	struct request *rq = tio->orig;
 	int rw = rq_data_dir(rq);
+	unsigned long delay_ms = delay_requeue ? 100 : 0;
 
 	rq_end_stats(md, rq);
 	if (tio->clone) {
@@ -278,9 +274,9 @@ static void dm_requeue_original_request(struct dm_rq_target_io *tio, bool delay_
 	}
 
 	if (!rq->q->mq_ops)
-		dm_old_requeue_request(rq);
+		dm_old_requeue_request(rq, delay_ms);
 	else
-		dm_mq_delay_requeue_request(rq, delay_requeue ? 100/*ms*/ : 0);
+		dm_mq_delay_requeue_request(rq, delay_ms);
 
 	rq_completed(md, rw, false);
 }
@@ -455,6 +451,7 @@ static void init_tio(struct dm_rq_target_io *tio, struct request *rq,
 	tio->clone = NULL;
 	tio->orig = rq;
 	tio->error = 0;
+	tio->completed = 0;
 	/*
 	 * Avoid initializing info for blk-mq; it passes
 	 * target-specific data through info.ptr
diff --git a/drivers/md/dm-rq.h b/drivers/md/dm-rq.h
index 9813922e4fe5..f43c45460aac 100644
--- a/drivers/md/dm-rq.h
+++ b/drivers/md/dm-rq.h
@@ -29,6 +29,7 @@ struct dm_rq_target_io {
 	struct dm_stats_aux stats_aux;
 	unsigned long duration_jiffies;
 	unsigned n_sectors;
+	unsigned completed;
 };
 
 /*
diff --git a/drivers/md/dm-stats.c b/drivers/md/dm-stats.c
index 6028d8247f58..29bc51084c82 100644
--- a/drivers/md/dm-stats.c
+++ b/drivers/md/dm-stats.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/numa.h>
 #include <linux/slab.h>
@@ -431,7 +432,7 @@ do_sync_free:
 		synchronize_rcu_expedited();
 		dm_stat_free(&s->rcu_head);
 	} else {
-		ACCESS_ONCE(dm_stat_need_rcu_barrier) = 1;
+		WRITE_ONCE(dm_stat_need_rcu_barrier, 1);
 		call_rcu(&s->rcu_head, dm_stat_free);
 	}
 	return 0;
@@ -639,12 +640,12 @@ void dm_stats_account_io(struct dm_stats *stats, unsigned long bi_rw,
 		 */
 		last = raw_cpu_ptr(stats->last);
 		stats_aux->merged =
-			(bi_sector == (ACCESS_ONCE(last->last_sector) &&
+			(bi_sector == (READ_ONCE(last->last_sector) &&
 				       ((bi_rw == WRITE) ==
-					(ACCESS_ONCE(last->last_rw) == WRITE))
+					(READ_ONCE(last->last_rw) == WRITE))
 				       ));
-		ACCESS_ONCE(last->last_sector) = end_sector;
-		ACCESS_ONCE(last->last_rw) = bi_rw;
+		WRITE_ONCE(last->last_sector, end_sector);
+		WRITE_ONCE(last->last_rw, bi_rw);
 	}
 
 	rcu_read_lock();
@@ -693,22 +694,22 @@ static void __dm_stat_init_temporary_percpu_totals(struct dm_stat_shared *shared
 
 	for_each_possible_cpu(cpu) {
 		p = &s->stat_percpu[cpu][x];
-		shared->tmp.sectors[READ] += ACCESS_ONCE(p->sectors[READ]);
-		shared->tmp.sectors[WRITE] += ACCESS_ONCE(p->sectors[WRITE]);
-		shared->tmp.ios[READ] += ACCESS_ONCE(p->ios[READ]);
-		shared->tmp.ios[WRITE] += ACCESS_ONCE(p->ios[WRITE]);
-		shared->tmp.merges[READ] += ACCESS_ONCE(p->merges[READ]);
-		shared->tmp.merges[WRITE] += ACCESS_ONCE(p->merges[WRITE]);
-		shared->tmp.ticks[READ] += ACCESS_ONCE(p->ticks[READ]);
-		shared->tmp.ticks[WRITE] += ACCESS_ONCE(p->ticks[WRITE]);
-		shared->tmp.io_ticks[READ] += ACCESS_ONCE(p->io_ticks[READ]);
-		shared->tmp.io_ticks[WRITE] += ACCESS_ONCE(p->io_ticks[WRITE]);
-		shared->tmp.io_ticks_total += ACCESS_ONCE(p->io_ticks_total);
-		shared->tmp.time_in_queue += ACCESS_ONCE(p->time_in_queue);
+		shared->tmp.sectors[READ] += READ_ONCE(p->sectors[READ]);
+		shared->tmp.sectors[WRITE] += READ_ONCE(p->sectors[WRITE]);
+		shared->tmp.ios[READ] += READ_ONCE(p->ios[READ]);
+		shared->tmp.ios[WRITE] += READ_ONCE(p->ios[WRITE]);
+		shared->tmp.merges[READ] += READ_ONCE(p->merges[READ]);
+		shared->tmp.merges[WRITE] += READ_ONCE(p->merges[WRITE]);
+		shared->tmp.ticks[READ] += READ_ONCE(p->ticks[READ]);
+		shared->tmp.ticks[WRITE] += READ_ONCE(p->ticks[WRITE]);
+		shared->tmp.io_ticks[READ] += READ_ONCE(p->io_ticks[READ]);
+		shared->tmp.io_ticks[WRITE] += READ_ONCE(p->io_ticks[WRITE]);
+		shared->tmp.io_ticks_total += READ_ONCE(p->io_ticks_total);
+		shared->tmp.time_in_queue += READ_ONCE(p->time_in_queue);
 		if (s->n_histogram_entries) {
 			unsigned i;
 			for (i = 0; i < s->n_histogram_entries + 1; i++)
-				shared->tmp.histogram[i] += ACCESS_ONCE(p->histogram[i]);
+				shared->tmp.histogram[i] += READ_ONCE(p->histogram[i]);
 		}
 	}
 }
diff --git a/drivers/md/dm-stats.h b/drivers/md/dm-stats.h
index f1c0956e3843..2ddfae678f32 100644
--- a/drivers/md/dm-stats.h
+++ b/drivers/md/dm-stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DM_STATS_H
 #define DM_STATS_H
 
diff --git a/drivers/md/dm-stripe.c b/drivers/md/dm-stripe.c
index ab50d7c4377f..b5e892149c54 100644
--- a/drivers/md/dm-stripe.c
+++ b/drivers/md/dm-stripe.c
@@ -351,25 +351,6 @@ static size_t stripe_dax_copy_from_iter(struct dm_target *ti, pgoff_t pgoff,
 	return dax_copy_from_iter(dax_dev, pgoff, addr, bytes, i);
 }
 
-static void stripe_dax_flush(struct dm_target *ti, pgoff_t pgoff, void *addr,
-		size_t size)
-{
-	sector_t dev_sector, sector = pgoff * PAGE_SECTORS;
-	struct stripe_c *sc = ti->private;
-	struct dax_device *dax_dev;
-	struct block_device *bdev;
-	uint32_t stripe;
-
-	stripe_map_sector(sc, sector, &stripe, &dev_sector);
-	dev_sector += sc->stripe[stripe].physical_start;
-	dax_dev = sc->stripe[stripe].dev->dax_dev;
-	bdev = sc->stripe[stripe].dev->bdev;
-
-	if (bdev_dax_pgoff(bdev, dev_sector, ALIGN(size, PAGE_SIZE), &pgoff))
-		return;
-	dax_flush(dax_dev, pgoff, addr, size);
-}
-
 /*
  * Stripe status:
  *
@@ -489,7 +470,6 @@ static struct target_type stripe_target = {
 	.io_hints = stripe_io_hints,
 	.direct_access = stripe_dax_direct_access,
 	.dax_copy_from_iter = stripe_dax_copy_from_iter,
-	.dax_flush = stripe_dax_flush,
 };
 
 int __init dm_stripe_init(void)
diff --git a/drivers/md/dm-switch.c b/drivers/md/dm-switch.c
index 2dcea4c56f37..8d0ba879777e 100644
--- a/drivers/md/dm-switch.c
+++ b/drivers/md/dm-switch.c
@@ -144,7 +144,7 @@ static unsigned switch_region_table_read(struct switch_ctx *sctx, unsigned long
 
 	switch_get_position(sctx, region_nr, &region_index, &bit);
 
-	return (ACCESS_ONCE(sctx->region_table[region_index]) >> bit) &
+	return (READ_ONCE(sctx->region_table[region_index]) >> bit) &
 		((1 << sctx->region_table_entry_bits) - 1);
 }
 
@@ -251,7 +251,7 @@ static void switch_dtr(struct dm_target *ti)
  */
 static int switch_ctr(struct dm_target *ti, unsigned argc, char **argv)
 {
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{1, (KMALLOC_MAX_SIZE - sizeof(struct switch_ctx)) / sizeof(struct switch_path), "Invalid number of paths"},
 		{1, UINT_MAX, "Invalid region size"},
 		{0, 0, "Invalid number of optional args"},
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 28a4071cdf85..433bd3f3014c 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -451,15 +451,15 @@ int dm_get_device(struct dm_target *ti, const char *path, fmode_t mode,
 			return r;
 		}
 
-		atomic_set(&dd->count, 0);
+		refcount_set(&dd->count, 1);
 		list_add(&dd->list, &t->devices);
 
 	} else if (dd->dm_dev->mode != (mode | dd->dm_dev->mode)) {
 		r = upgrade_mode(dd, mode, t->md);
 		if (r)
 			return r;
+		refcount_inc(&dd->count);
 	}
-	atomic_inc(&dd->count);
 
 	*result = dd->dm_dev;
 	return 0;
@@ -515,7 +515,7 @@ void dm_put_device(struct dm_target *ti, struct dm_dev *d)
 		       dm_device_name(ti->table->md), d->name);
 		return;
 	}
-	if (atomic_dec_and_test(&dd->count)) {
+	if (refcount_dec_and_test(&dd->count)) {
 		dm_put_table_device(ti->table->md, d);
 		list_del(&dd->list);
 		kfree(dd);
@@ -806,7 +806,8 @@ int dm_table_add_target(struct dm_table *t, const char *type,
 /*
  * Target argument parsing helpers.
  */
-static int validate_next_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
+static int validate_next_arg(const struct dm_arg *arg,
+			     struct dm_arg_set *arg_set,
 			     unsigned *value, char **error, unsigned grouped)
 {
 	const char *arg_str = dm_shift_arg(arg_set);
@@ -824,14 +825,14 @@ static int validate_next_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
 	return 0;
 }
 
-int dm_read_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
+int dm_read_arg(const struct dm_arg *arg, struct dm_arg_set *arg_set,
 		unsigned *value, char **error)
 {
 	return validate_next_arg(arg, arg_set, value, error, 0);
 }
 EXPORT_SYMBOL(dm_read_arg);
 
-int dm_read_arg_group(struct dm_arg *arg, struct dm_arg_set *arg_set,
+int dm_read_arg_group(const struct dm_arg *arg, struct dm_arg_set *arg_set,
 		      unsigned *value, char **error)
 {
 	return validate_next_arg(arg, arg_set, value, error, 1);
@@ -999,7 +1000,7 @@ verify_rq_based:
 	list_for_each_entry(dd, devices, list) {
 		struct request_queue *q = bdev_get_queue(dd->dm_dev->bdev);
 
-		if (!blk_queue_stackable(q)) {
+		if (!queue_is_rq_based(q)) {
 			DMERR("table load rejected: including"
 			      " non-request-stackable devices");
 			return -EINVAL;
@@ -1846,19 +1847,6 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
 	 */
 	if (blk_queue_add_random(q) && dm_table_all_devices_attribute(t, device_is_not_random))
 		queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q);
-
-	/*
-	 * QUEUE_FLAG_STACKABLE must be set after all queue settings are
-	 * visible to other CPUs because, once the flag is set, incoming bios
-	 * are processed by request-based dm, which refers to the queue
-	 * settings.
-	 * Until the flag set, bios are passed to bio-based dm and queued to
-	 * md->deferred where queue settings are not needed yet.
-	 * Those bios are passed to request-based dm at the resume time.
-	 */
-	smp_mb();
-	if (dm_table_request_based(t))
-		queue_flag_set_unlocked(QUEUE_FLAG_STACKABLE, q);
 }
 
 unsigned int dm_table_get_num_targets(struct dm_table *t)
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index 69d88aee3055..89e5dff9b4cf 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -2431,7 +2431,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode new_mode)
 	struct pool_c *pt = pool->ti->private;
 	bool needs_check = dm_pool_metadata_needs_check(pool->pmd);
 	enum pool_mode old_mode = get_pool_mode(pool);
-	unsigned long no_space_timeout = ACCESS_ONCE(no_space_timeout_secs) * HZ;
+	unsigned long no_space_timeout = READ_ONCE(no_space_timeout_secs) * HZ;
 
 	/*
 	 * Never allow the pool to transition to PM_WRITE mode if user
@@ -3041,7 +3041,7 @@ static int parse_pool_features(struct dm_arg_set *as, struct pool_features *pf,
 	unsigned argc;
 	const char *arg_name;
 
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, 4, "Invalid number of pool feature arguments"},
 	};
 
diff --git a/drivers/md/dm-verity-target.c b/drivers/md/dm-verity-target.c
index 1c5b6185c79d..aedb8222836b 100644
--- a/drivers/md/dm-verity-target.c
+++ b/drivers/md/dm-verity-target.c
@@ -92,74 +92,33 @@ static sector_t verity_position_at_level(struct dm_verity *v, sector_t block,
 	return block >> (level * v->hash_per_block_bits);
 }
 
-/*
- * Callback function for asynchrnous crypto API completion notification
- */
-static void verity_op_done(struct crypto_async_request *base, int err)
-{
-	struct verity_result *res = (struct verity_result *)base->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	res->err = err;
-	complete(&res->completion);
-}
-
-/*
- * Wait for async crypto API callback
- */
-static inline int verity_complete_op(struct verity_result *res, int ret)
-{
-	switch (ret) {
-	case 0:
-		break;
-
-	case -EINPROGRESS:
-	case -EBUSY:
-		ret = wait_for_completion_interruptible(&res->completion);
-		if (!ret)
-			ret = res->err;
-		reinit_completion(&res->completion);
-		break;
-
-	default:
-		DMERR("verity_wait_hash: crypto op submission failed: %d", ret);
-	}
-
-	if (unlikely(ret < 0))
-		DMERR("verity_wait_hash: crypto op failed: %d", ret);
-
-	return ret;
-}
-
 static int verity_hash_update(struct dm_verity *v, struct ahash_request *req,
 				const u8 *data, size_t len,
-				struct verity_result *res)
+				struct crypto_wait *wait)
 {
 	struct scatterlist sg;
 
 	sg_init_one(&sg, data, len);
 	ahash_request_set_crypt(req, &sg, NULL, len);
 
-	return verity_complete_op(res, crypto_ahash_update(req));
+	return crypto_wait_req(crypto_ahash_update(req), wait);
 }
 
 /*
  * Wrapper for crypto_ahash_init, which handles verity salting.
  */
 static int verity_hash_init(struct dm_verity *v, struct ahash_request *req,
-				struct verity_result *res)
+				struct crypto_wait *wait)
 {
 	int r;
 
 	ahash_request_set_tfm(req, v->tfm);
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP |
 					CRYPTO_TFM_REQ_MAY_BACKLOG,
-					verity_op_done, (void *)res);
-	init_completion(&res->completion);
+					crypto_req_done, (void *)wait);
+	crypto_init_wait(wait);
 
-	r = verity_complete_op(res, crypto_ahash_init(req));
+	r = crypto_wait_req(crypto_ahash_init(req), wait);
 
 	if (unlikely(r < 0)) {
 		DMERR("crypto_ahash_init failed: %d", r);
@@ -167,18 +126,18 @@ static int verity_hash_init(struct dm_verity *v, struct ahash_request *req,
 	}
 
 	if (likely(v->salt_size && (v->version >= 1)))
-		r = verity_hash_update(v, req, v->salt, v->salt_size, res);
+		r = verity_hash_update(v, req, v->salt, v->salt_size, wait);
 
 	return r;
 }
 
 static int verity_hash_final(struct dm_verity *v, struct ahash_request *req,
-			     u8 *digest, struct verity_result *res)
+			     u8 *digest, struct crypto_wait *wait)
 {
 	int r;
 
 	if (unlikely(v->salt_size && (!v->version))) {
-		r = verity_hash_update(v, req, v->salt, v->salt_size, res);
+		r = verity_hash_update(v, req, v->salt, v->salt_size, wait);
 
 		if (r < 0) {
 			DMERR("verity_hash_final failed updating salt: %d", r);
@@ -187,7 +146,7 @@ static int verity_hash_final(struct dm_verity *v, struct ahash_request *req,
 	}
 
 	ahash_request_set_crypt(req, NULL, digest, 0);
-	r = verity_complete_op(res, crypto_ahash_final(req));
+	r = crypto_wait_req(crypto_ahash_final(req), wait);
 out:
 	return r;
 }
@@ -196,17 +155,17 @@ int verity_hash(struct dm_verity *v, struct ahash_request *req,
 		const u8 *data, size_t len, u8 *digest)
 {
 	int r;
-	struct verity_result res;
+	struct crypto_wait wait;
 
-	r = verity_hash_init(v, req, &res);
+	r = verity_hash_init(v, req, &wait);
 	if (unlikely(r < 0))
 		goto out;
 
-	r = verity_hash_update(v, req, data, len, &res);
+	r = verity_hash_update(v, req, data, len, &wait);
 	if (unlikely(r < 0))
 		goto out;
 
-	r = verity_hash_final(v, req, digest, &res);
+	r = verity_hash_final(v, req, digest, &wait);
 
 out:
 	return r;
@@ -389,7 +348,7 @@ out:
  * Calculates the digest for the given bio
  */
 int verity_for_io_block(struct dm_verity *v, struct dm_verity_io *io,
-			struct bvec_iter *iter, struct verity_result *res)
+			struct bvec_iter *iter, struct crypto_wait *wait)
 {
 	unsigned int todo = 1 << v->data_dev_block_bits;
 	struct bio *bio = dm_bio_from_per_bio_data(io, v->ti->per_io_data_size);
@@ -414,7 +373,7 @@ int verity_for_io_block(struct dm_verity *v, struct dm_verity_io *io,
 		 */
 		sg_set_page(&sg, bv.bv_page, len, bv.bv_offset);
 		ahash_request_set_crypt(req, &sg, NULL, len);
-		r = verity_complete_op(res, crypto_ahash_update(req));
+		r = crypto_wait_req(crypto_ahash_update(req), wait);
 
 		if (unlikely(r < 0)) {
 			DMERR("verity_for_io_block crypto op failed: %d", r);
@@ -482,7 +441,7 @@ static int verity_verify_io(struct dm_verity_io *io)
 	struct dm_verity *v = io->v;
 	struct bvec_iter start;
 	unsigned b;
-	struct verity_result res;
+	struct crypto_wait wait;
 
 	for (b = 0; b < io->n_blocks; b++) {
 		int r;
@@ -507,17 +466,17 @@ static int verity_verify_io(struct dm_verity_io *io)
 			continue;
 		}
 
-		r = verity_hash_init(v, req, &res);
+		r = verity_hash_init(v, req, &wait);
 		if (unlikely(r < 0))
 			return r;
 
 		start = io->iter;
-		r = verity_for_io_block(v, io, &io->iter, &res);
+		r = verity_for_io_block(v, io, &io->iter, &wait);
 		if (unlikely(r < 0))
 			return r;
 
 		r = verity_hash_final(v, req, verity_io_real_digest(v, io),
-					&res);
+					&wait);
 		if (unlikely(r < 0))
 			return r;
 
@@ -589,7 +548,7 @@ static void verity_prefetch_io(struct work_struct *work)
 		verity_hash_at_level(v, pw->block, i, &hash_block_start, NULL);
 		verity_hash_at_level(v, pw->block + pw->n_blocks - 1, i, &hash_block_end, NULL);
 		if (!i) {
-			unsigned cluster = ACCESS_ONCE(dm_verity_prefetch_cluster);
+			unsigned cluster = READ_ONCE(dm_verity_prefetch_cluster);
 
 			cluster >>= v->data_dev_block_bits;
 			if (unlikely(!cluster))
@@ -839,7 +798,7 @@ static int verity_parse_opt_args(struct dm_arg_set *as, struct dm_verity *v)
 	struct dm_target *ti = v->ti;
 	const char *arg_name;
 
-	static struct dm_arg _args[] = {
+	static const struct dm_arg _args[] = {
 		{0, DM_VERITY_OPTS_MAX, "Invalid number of feature args"},
 	};
 
diff --git a/drivers/md/dm-verity.h b/drivers/md/dm-verity.h
index a59e0ada6fd3..b675bc015512 100644
--- a/drivers/md/dm-verity.h
+++ b/drivers/md/dm-verity.h
@@ -90,11 +90,6 @@ struct dm_verity_io {
 	 */
 };
 
-struct verity_result {
-	struct completion completion;
-	int err;
-};
-
 static inline struct ahash_request *verity_io_hash_req(struct dm_verity *v,
 						     struct dm_verity_io *io)
 {
diff --git a/drivers/md/dm-zoned-target.c b/drivers/md/dm-zoned-target.c
index b87c1741da4b..6d7bda6f8190 100644
--- a/drivers/md/dm-zoned-target.c
+++ b/drivers/md/dm-zoned-target.c
@@ -660,6 +660,7 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path)
 	struct dmz_target *dmz = ti->private;
 	struct request_queue *q;
 	struct dmz_dev *dev;
+	sector_t aligned_capacity;
 	int ret;
 
 	/* Get the target device */
@@ -685,15 +686,17 @@ static int dmz_get_zoned_device(struct dm_target *ti, char *path)
 		goto err;
 	}
 
+	q = bdev_get_queue(dev->bdev);
 	dev->capacity = i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT;
-	if (ti->begin || (ti->len != dev->capacity)) {
+	aligned_capacity = dev->capacity & ~(blk_queue_zone_sectors(q) - 1);
+	if (ti->begin ||
+	    ((ti->len != dev->capacity) && (ti->len != aligned_capacity))) {
 		ti->error = "Partial mapping not supported";
 		ret = -EINVAL;
 		goto err;
 	}
 
-	q = bdev_get_queue(dev->bdev);
-	dev->zone_nr_sectors = q->limits.chunk_sectors;
+	dev->zone_nr_sectors = blk_queue_zone_sectors(q);
 	dev->zone_nr_sectors_shift = ilog2(dev->zone_nr_sectors);
 
 	dev->zone_nr_blocks = dmz_sect2blk(dev->zone_nr_sectors);
@@ -929,8 +932,10 @@ static int dmz_iterate_devices(struct dm_target *ti,
 			       iterate_devices_callout_fn fn, void *data)
 {
 	struct dmz_target *dmz = ti->private;
+	struct dmz_dev *dev = dmz->dev;
+	sector_t capacity = dev->capacity & ~(dev->zone_nr_sectors - 1);
 
-	return fn(ti, dmz->ddev, 0, dmz->dev->capacity, data);
+	return fn(ti, dmz->ddev, 0, capacity, data);
 }
 
 static struct target_type dmz_type = {
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 04ae795e8a5f..de17b7193299 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -24,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/wait.h>
 #include <linux/pr.h>
+#include <linux/refcount.h>
 
 #define DM_MSG_PREFIX "core"
 
@@ -52,6 +53,12 @@ static struct workqueue_struct *deferred_remove_workqueue;
 atomic_t dm_global_event_nr = ATOMIC_INIT(0);
 DECLARE_WAIT_QUEUE_HEAD(dm_global_eventq);
 
+void dm_issue_global_event(void)
+{
+	atomic_inc(&dm_global_event_nr);
+	wake_up(&dm_global_eventq);
+}
+
 /*
  * One of these is allocated per bio.
  */
@@ -92,7 +99,7 @@ struct dm_md_mempools {
 
 struct table_device {
 	struct list_head list;
-	atomic_t count;
+	refcount_t count;
 	struct dm_dev dm_dev;
 };
 
@@ -108,7 +115,7 @@ static unsigned reserved_bio_based_ios = RESERVED_BIO_BASED_IOS;
 
 static int __dm_get_module_param_int(int *module_param, int min, int max)
 {
-	int param = ACCESS_ONCE(*module_param);
+	int param = READ_ONCE(*module_param);
 	int modified_param = 0;
 	bool modified = true;
 
@@ -130,7 +137,7 @@ static int __dm_get_module_param_int(int *module_param, int min, int max)
 unsigned __dm_get_module_param(unsigned *module_param,
 			       unsigned def, unsigned max)
 {
-	unsigned param = ACCESS_ONCE(*module_param);
+	unsigned param = READ_ONCE(*module_param);
 	unsigned modified_param = 0;
 
 	if (!param)
@@ -679,10 +686,11 @@ int dm_get_table_device(struct mapped_device *md, dev_t dev, fmode_t mode,
 
 		format_dev_t(td->dm_dev.name, dev);
 
-		atomic_set(&td->count, 0);
+		refcount_set(&td->count, 1);
 		list_add(&td->list, &md->table_devices);
+	} else {
+		refcount_inc(&td->count);
 	}
-	atomic_inc(&td->count);
 	mutex_unlock(&md->table_devices_lock);
 
 	*result = &td->dm_dev;
@@ -695,7 +703,7 @@ void dm_put_table_device(struct mapped_device *md, struct dm_dev *d)
 	struct table_device *td = container_of(d, struct table_device, dm_dev);
 
 	mutex_lock(&md->table_devices_lock);
-	if (atomic_dec_and_test(&td->count)) {
+	if (refcount_dec_and_test(&td->count)) {
 		close_table_device(td, md);
 		list_del(&td->list);
 		kfree(td);
@@ -712,7 +720,7 @@ static void free_table_devices(struct list_head *devices)
 		struct table_device *td = list_entry(tmp, struct table_device, list);
 
 		DMWARN("dm_destroy: %s still exists with %d references",
-		       td->dm_dev.name, atomic_read(&td->count));
+		       td->dm_dev.name, refcount_read(&td->count));
 		kfree(td);
 	}
 }
@@ -987,24 +995,6 @@ static size_t dm_dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
 	return ret;
 }
 
-static void dm_dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
-		size_t size)
-{
-	struct mapped_device *md = dax_get_private(dax_dev);
-	sector_t sector = pgoff * PAGE_SECTORS;
-	struct dm_target *ti;
-	int srcu_idx;
-
-	ti = dm_dax_get_live_target(md, sector, &srcu_idx);
-
-	if (!ti)
-		goto out;
-	if (ti->type->dax_flush)
-		ti->type->dax_flush(ti, pgoff, addr, size);
- out:
-	dm_put_live_table(md, srcu_idx);
-}
-
 /*
  * A target may call dm_accept_partial_bio only from the map routine.  It is
  * allowed for all bio types except REQ_PREFLUSH.
@@ -1631,17 +1621,6 @@ static void dm_wq_work(struct work_struct *work);
 void dm_init_md_queue(struct mapped_device *md)
 {
 	/*
-	 * Request-based dm devices cannot be stacked on top of bio-based dm
-	 * devices.  The type of this dm device may not have been decided yet.
-	 * The type is decided at the first table loading time.
-	 * To prevent problematic device stacking, clear the queue flag
-	 * for request stacking support until then.
-	 *
-	 * This queue is new, so no concurrency on the queue_flags.
-	 */
-	queue_flag_clear_unlocked(QUEUE_FLAG_STACKABLE, md->queue);
-
-	/*
 	 * Initialize data that will only be used by a non-blk-mq DM queue
 	 * - must do so here (in alloc_dev callchain) before queue is used
 	 */
@@ -1707,7 +1686,7 @@ static struct mapped_device *alloc_dev(int minor)
 	struct mapped_device *md;
 	void *old_md;
 
-	md = kzalloc_node(sizeof(*md), GFP_KERNEL, numa_node_id);
+	md = kvzalloc_node(sizeof(*md), GFP_KERNEL, numa_node_id);
 	if (!md) {
 		DMWARN("unable to allocate device, out of memory.");
 		return NULL;
@@ -1807,7 +1786,7 @@ bad_io_barrier:
 bad_minor:
 	module_put(THIS_MODULE);
 bad_module_get:
-	kfree(md);
+	kvfree(md);
 	return NULL;
 }
 
@@ -1826,7 +1805,7 @@ static void free_dev(struct mapped_device *md)
 	free_minor(minor);
 
 	module_put(THIS_MODULE);
-	kfree(md);
+	kvfree(md);
 }
 
 static void __bind_mempools(struct mapped_device *md, struct dm_table *t)
@@ -1883,9 +1862,8 @@ static void event_callback(void *context)
 	dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj);
 
 	atomic_inc(&md->event_nr);
-	atomic_inc(&dm_global_event_nr);
 	wake_up(&md->eventq);
-	wake_up(&dm_global_eventq);
+	dm_issue_global_event();
 }
 
 /*
@@ -2085,17 +2063,12 @@ struct mapped_device *dm_get_md(dev_t dev)
 	spin_lock(&_minor_lock);
 
 	md = idr_find(&_minor_idr, minor);
-	if (md) {
-		if ((md == MINOR_ALLOCED ||
-		     (MINOR(disk_devt(dm_disk(md))) != minor) ||
-		     dm_deleting_md(md) ||
-		     test_bit(DMF_FREEING, &md->flags))) {
-			md = NULL;
-			goto out;
-		}
-		dm_get(md);
+	if (!md || md == MINOR_ALLOCED || (MINOR(disk_devt(dm_disk(md))) != minor) ||
+	    test_bit(DMF_FREEING, &md->flags) || dm_deleting_md(md)) {
+		md = NULL;
+		goto out;
 	}
-
+	dm_get(md);
 out:
 	spin_unlock(&_minor_lock);
 
@@ -2301,6 +2274,7 @@ struct dm_table *dm_swap_table(struct mapped_device *md, struct dm_table *table)
 	}
 
 	map = __bind(md, table, &limits);
+	dm_issue_global_event();
 
 out:
 	mutex_unlock(&md->suspend_lock);
@@ -2721,11 +2695,15 @@ struct mapped_device *dm_get_from_kobject(struct kobject *kobj)
 
 	md = container_of(kobj, struct mapped_device, kobj_holder.kobj);
 
-	if (test_bit(DMF_FREEING, &md->flags) ||
-	    dm_deleting_md(md))
-		return NULL;
-
+	spin_lock(&_minor_lock);
+	if (test_bit(DMF_FREEING, &md->flags) || dm_deleting_md(md)) {
+		md = NULL;
+		goto out;
+	}
 	dm_get(md);
+out:
+	spin_unlock(&_minor_lock);
+
 	return md;
 }
 
@@ -2992,7 +2970,6 @@ static const struct block_device_operations dm_blk_dops = {
 static const struct dax_operations dm_dax_ops = {
 	.direct_access = dm_dax_direct_access,
 	.copy_from_iter = dm_dax_copy_from_iter,
-	.flush = dm_dax_flush,
 };
 
 /*
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 38c84c0a35d4..36399bb875dd 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -19,6 +19,7 @@
 #include <linux/hdreg.h>
 #include <linux/completion.h>
 #include <linux/kobject.h>
+#include <linux/refcount.h>
 
 #include "dm-stats.h"
 
@@ -38,7 +39,7 @@
  */
 struct dm_dev_internal {
 	struct list_head list;
-	atomic_t count;
+	refcount_t count;
 	struct dm_dev *dm_dev;
 };
 
diff --git a/drivers/md/bitmap.c b/drivers/md/md-bitmap.c
index d2121637b4ab..239c7bb3929b 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -29,7 +29,7 @@
 #include <linux/seq_file.h>
 #include <trace/events/block.h>
 #include "md.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 
 static inline char *bmname(struct bitmap *bitmap)
 {
@@ -368,7 +368,7 @@ static int read_page(struct file *file, unsigned long index,
 	pr_debug("read bitmap file (%dB @ %llu)\n", (int)PAGE_SIZE,
 		 (unsigned long long)index << PAGE_SHIFT);
 
-	bh = alloc_page_buffers(page, 1<<inode->i_blkbits, 0);
+	bh = alloc_page_buffers(page, 1<<inode->i_blkbits, false);
 	if (!bh) {
 		ret = -ENOMEM;
 		goto out;
@@ -459,7 +459,11 @@ void bitmap_update_sb(struct bitmap *bitmap)
 		/* rocking back to read-only */
 		bitmap->events_cleared = bitmap->mddev->events;
 	sb->events_cleared = cpu_to_le64(bitmap->events_cleared);
-	sb->state = cpu_to_le32(bitmap->flags);
+	/*
+	 * clear BITMAP_WRITE_ERROR bit to protect against the case that
+	 * a bitmap write error occurred but the later writes succeeded.
+	 */
+	sb->state = cpu_to_le32(bitmap->flags & ~BIT(BITMAP_WRITE_ERROR));
 	/* Just in case these have been changed via sysfs: */
 	sb->daemon_sleep = cpu_to_le32(bitmap->mddev->bitmap_info.daemon_sleep/HZ);
 	sb->write_behind = cpu_to_le32(bitmap->mddev->bitmap_info.max_write_behind);
@@ -625,7 +629,7 @@ re_read:
 		err = read_sb_page(bitmap->mddev,
 				   offset,
 				   sb_page,
-				   0, PAGE_SIZE);
+				   0, sizeof(bitmap_super_t));
 	}
 	if (err)
 		return err;
@@ -1816,6 +1820,12 @@ struct bitmap *bitmap_create(struct mddev *mddev, int slot)
 
 	BUG_ON(file && mddev->bitmap_info.offset);
 
+	if (test_bit(MD_HAS_JOURNAL, &mddev->flags)) {
+		pr_notice("md/raid:%s: array with journal cannot have bitmap\n",
+			  mdname(mddev));
+		return ERR_PTR(-EBUSY);
+	}
+
 	bitmap = kzalloc(sizeof(*bitmap), GFP_KERNEL);
 	if (!bitmap)
 		return ERR_PTR(-ENOMEM);
@@ -2123,7 +2133,7 @@ int bitmap_resize(struct bitmap *bitmap, sector_t blocks,
 	if (store.sb_page && bitmap->storage.sb_page)
 		memcpy(page_address(store.sb_page),
 		       page_address(bitmap->storage.sb_page),
-		       PAGE_SIZE);
+		       sizeof(bitmap_super_t));
 	bitmap_file_unmap(&bitmap->storage);
 	bitmap->storage = store;
 
@@ -2152,6 +2162,7 @@ int bitmap_resize(struct bitmap *bitmap, sector_t blocks,
 				for (k = 0; k < page; k++) {
 					kfree(new_bp[k].map);
 				}
+				kfree(new_bp);
 
 				/* restore some fields from old_counts */
 				bitmap->counts.bp = old_counts.bp;
@@ -2202,6 +2213,14 @@ int bitmap_resize(struct bitmap *bitmap, sector_t blocks,
 		block += old_blocks;
 	}
 
+	if (bitmap->counts.bp != old_counts.bp) {
+		unsigned long k;
+		for (k = 0; k < old_counts.pages; k++)
+			if (!old_counts.bp[k].hijacked)
+				kfree(old_counts.bp[k].map);
+		kfree(old_counts.bp);
+	}
+
 	if (!init) {
 		int i;
 		while (block < (chunks << chunkshift)) {
diff --git a/drivers/md/bitmap.h b/drivers/md/md-bitmap.h
index d15721ac07a6..5df35ca90f58 100644
--- a/drivers/md/bitmap.h
+++ b/drivers/md/md-bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * bitmap.h: Copyright (C) Peter T. Breuer (ptb@ot.uc3m.es) 2003
  *
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 03082e17c65c..79bfbc840385 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -15,7 +15,7 @@
 #include <linux/sched.h>
 #include <linux/raid/md_p.h>
 #include "md.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 #include "md-cluster.h"
 
 #define LVB_SIZE	64
@@ -442,10 +442,11 @@ static void __remove_suspend_info(struct md_cluster_info *cinfo, int slot)
 static void remove_suspend_info(struct mddev *mddev, int slot)
 {
 	struct md_cluster_info *cinfo = mddev->cluster_info;
+	mddev->pers->quiesce(mddev, 1);
 	spin_lock_irq(&cinfo->suspend_lock);
 	__remove_suspend_info(cinfo, slot);
 	spin_unlock_irq(&cinfo->suspend_lock);
-	mddev->pers->quiesce(mddev, 2);
+	mddev->pers->quiesce(mddev, 0);
 }
 
 
@@ -492,13 +493,12 @@ static void process_suspend_info(struct mddev *mddev,
 	s->lo = lo;
 	s->hi = hi;
 	mddev->pers->quiesce(mddev, 1);
-	mddev->pers->quiesce(mddev, 0);
 	spin_lock_irq(&cinfo->suspend_lock);
 	/* Remove existing entry (if exists) before adding */
 	__remove_suspend_info(cinfo, slot);
 	list_add(&s->list, &cinfo->suspend_list);
 	spin_unlock_irq(&cinfo->suspend_lock);
-	mddev->pers->quiesce(mddev, 2);
+	mddev->pers->quiesce(mddev, 0);
 }
 
 static void process_add_new_disk(struct mddev *mddev, struct cluster_msg *cmsg)
@@ -1094,7 +1094,7 @@ static void metadata_update_cancel(struct mddev *mddev)
 /*
  * return 0 if all the bitmaps have the same sync_size
  */
-int cluster_check_sync_size(struct mddev *mddev)
+static int cluster_check_sync_size(struct mddev *mddev)
 {
 	int i, rv;
 	bitmap_super_t *sb;
@@ -1478,7 +1478,7 @@ static struct md_cluster_operations cluster_ops = {
 
 static int __init cluster_init(void)
 {
-	pr_warn("md-cluster: EXPERIMENTAL. Use with caution\n");
+	pr_warn("md-cluster: support raid1 and raid10 (limited support)\n");
 	pr_info("Registering Cluster MD functions\n");
 	register_md_cluster_operations(&cluster_ops, THIS_MODULE);
 	return 0;
diff --git a/drivers/md/md-cluster.h b/drivers/md/md-cluster.h
index 274016177983..c0240708f443 100644
--- a/drivers/md/md-cluster.h
+++ b/drivers/md/md-cluster.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 
 #ifndef _MD_CLUSTER_H
diff --git a/drivers/md/faulty.c b/drivers/md/md-faulty.c
index 38264b38420f..38264b38420f 100644
--- a/drivers/md/faulty.c
+++ b/drivers/md/md-faulty.c
diff --git a/drivers/md/linear.c b/drivers/md/md-linear.c
index c464fb48039a..773fc70dced7 100644
--- a/drivers/md/linear.c
+++ b/drivers/md/md-linear.c
@@ -23,7 +23,7 @@
 #include <linux/slab.h>
 #include <trace/events/block.h>
 #include "md.h"
-#include "linear.h"
+#include "md-linear.h"
 
 /*
  * find which device holds a particular offset
diff --git a/drivers/md/linear.h b/drivers/md/md-linear.h
index 8d392e6098b3..8381d651d4ed 100644
--- a/drivers/md/linear.h
+++ b/drivers/md/md-linear.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINEAR_H
 #define _LINEAR_H
 
diff --git a/drivers/md/multipath.c b/drivers/md/md-multipath.c
index b68e0666b9b0..e40065bdbfc8 100644
--- a/drivers/md/multipath.c
+++ b/drivers/md/md-multipath.c
@@ -25,7 +25,7 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include "md.h"
-#include "multipath.h"
+#include "md-multipath.h"
 
 #define MAX_WORK_PER_DISK 128
 
@@ -243,7 +243,6 @@ static void print_multipath_conf (struct mpconf *conf)
 static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 {
 	struct mpconf *conf = mddev->private;
-	struct request_queue *q;
 	int err = -EEXIST;
 	int path;
 	struct multipath_info *p;
@@ -257,7 +256,6 @@ static int multipath_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 
 	for (path = first; path <= last; path++)
 		if ((p=conf->multipaths+path)->rdev == NULL) {
-			q = rdev->bdev->bd_disk->queue;
 			disk_stack_limits(mddev->gendisk, rdev->bdev,
 					  rdev->data_offset << 9);
 
diff --git a/drivers/md/multipath.h b/drivers/md/md-multipath.h
index 717c60f62898..0adb941f485a 100644
--- a/drivers/md/multipath.h
+++ b/drivers/md/md-multipath.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MULTIPATH_H
 #define _MULTIPATH_H
 
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 08fcaebc61bd..09c3af3dcdca 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -69,7 +69,7 @@
 
 #include <trace/events/block.h>
 #include "md.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 #include "md-cluster.h"
 
 #ifndef MODULE
@@ -266,6 +266,52 @@ static DEFINE_SPINLOCK(all_mddevs_lock);
  * call has finished, the bio has been linked into some internal structure
  * and so is visible to ->quiesce(), so we don't need the refcount any more.
  */
+static bool is_suspended(struct mddev *mddev, struct bio *bio)
+{
+	if (mddev->suspended)
+		return true;
+	if (bio_data_dir(bio) != WRITE)
+		return false;
+	if (mddev->suspend_lo >= mddev->suspend_hi)
+		return false;
+	if (bio->bi_iter.bi_sector >= mddev->suspend_hi)
+		return false;
+	if (bio_end_sector(bio) < mddev->suspend_lo)
+		return false;
+	return true;
+}
+
+void md_handle_request(struct mddev *mddev, struct bio *bio)
+{
+check_suspended:
+	rcu_read_lock();
+	if (is_suspended(mddev, bio)) {
+		DEFINE_WAIT(__wait);
+		for (;;) {
+			prepare_to_wait(&mddev->sb_wait, &__wait,
+					TASK_UNINTERRUPTIBLE);
+			if (!is_suspended(mddev, bio))
+				break;
+			rcu_read_unlock();
+			schedule();
+			rcu_read_lock();
+		}
+		finish_wait(&mddev->sb_wait, &__wait);
+	}
+	atomic_inc(&mddev->active_io);
+	rcu_read_unlock();
+
+	if (!mddev->pers->make_request(mddev, bio)) {
+		atomic_dec(&mddev->active_io);
+		wake_up(&mddev->sb_wait);
+		goto check_suspended;
+	}
+
+	if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
+		wake_up(&mddev->sb_wait);
+}
+EXPORT_SYMBOL(md_handle_request);
+
 static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
 {
 	const int rw = bio_data_dir(bio);
@@ -285,23 +331,6 @@ static blk_qc_t md_make_request(struct request_queue *q, struct bio *bio)
 		bio_endio(bio);
 		return BLK_QC_T_NONE;
 	}
-check_suspended:
-	rcu_read_lock();
-	if (mddev->suspended) {
-		DEFINE_WAIT(__wait);
-		for (;;) {
-			prepare_to_wait(&mddev->sb_wait, &__wait,
-					TASK_UNINTERRUPTIBLE);
-			if (!mddev->suspended)
-				break;
-			rcu_read_unlock();
-			schedule();
-			rcu_read_lock();
-		}
-		finish_wait(&mddev->sb_wait, &__wait);
-	}
-	atomic_inc(&mddev->active_io);
-	rcu_read_unlock();
 
 	/*
 	 * save the sectors now since our bio can
@@ -310,20 +339,14 @@ check_suspended:
 	sectors = bio_sectors(bio);
 	/* bio could be mergeable after passing to underlayer */
 	bio->bi_opf &= ~REQ_NOMERGE;
-	if (!mddev->pers->make_request(mddev, bio)) {
-		atomic_dec(&mddev->active_io);
-		wake_up(&mddev->sb_wait);
-		goto check_suspended;
-	}
+
+	md_handle_request(mddev, bio);
 
 	cpu = part_stat_lock();
 	part_stat_inc(cpu, &mddev->gendisk->part0, ios[rw]);
 	part_stat_add(cpu, &mddev->gendisk->part0, sectors[rw], sectors);
 	part_stat_unlock();
 
-	if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended)
-		wake_up(&mddev->sb_wait);
-
 	return BLK_QC_T_NONE;
 }
 
@@ -336,12 +359,17 @@ check_suspended:
 void mddev_suspend(struct mddev *mddev)
 {
 	WARN_ON_ONCE(mddev->thread && current == mddev->thread->tsk);
+	lockdep_assert_held(&mddev->reconfig_mutex);
 	if (mddev->suspended++)
 		return;
 	synchronize_rcu();
 	wake_up(&mddev->sb_wait);
+	set_bit(MD_ALLOW_SB_UPDATE, &mddev->flags);
+	smp_mb__after_atomic();
 	wait_event(mddev->sb_wait, atomic_read(&mddev->active_io) == 0);
 	mddev->pers->quiesce(mddev, 1);
+	clear_bit_unlock(MD_ALLOW_SB_UPDATE, &mddev->flags);
+	wait_event(mddev->sb_wait, !test_bit(MD_UPDATING_SB, &mddev->flags));
 
 	del_timer_sync(&mddev->safemode_timer);
 }
@@ -349,6 +377,7 @@ EXPORT_SYMBOL_GPL(mddev_suspend);
 
 void mddev_resume(struct mddev *mddev)
 {
+	lockdep_assert_held(&mddev->reconfig_mutex);
 	if (--mddev->suspended)
 		return;
 	wake_up(&mddev->sb_wait);
@@ -439,16 +468,22 @@ static void md_submit_flush_data(struct work_struct *ws)
 	struct mddev *mddev = container_of(ws, struct mddev, flush_work);
 	struct bio *bio = mddev->flush_bio;
 
+	/*
+	 * must reset flush_bio before calling into md_handle_request to avoid a
+	 * deadlock, because other bios passed md_handle_request suspend check
+	 * could wait for this and below md_handle_request could wait for those
+	 * bios because of suspend check
+	 */
+	mddev->flush_bio = NULL;
+	wake_up(&mddev->sb_wait);
+
 	if (bio->bi_iter.bi_size == 0)
 		/* an empty barrier - all done */
 		bio_endio(bio);
 	else {
 		bio->bi_opf &= ~REQ_PREFLUSH;
-		mddev->pers->make_request(mddev, bio);
+		md_handle_request(mddev, bio);
 	}
-
-	mddev->flush_bio = NULL;
-	wake_up(&mddev->sb_wait);
 }
 
 void md_flush_request(struct mddev *mddev, struct bio *bio)
@@ -649,6 +684,7 @@ void mddev_unlock(struct mddev *mddev)
 	 */
 	spin_lock(&pers_lock);
 	md_wakeup_thread(mddev->thread);
+	wake_up(&mddev->sb_wait);
 	spin_unlock(&pers_lock);
 }
 EXPORT_SYMBOL_GPL(mddev_unlock);
@@ -2299,7 +2335,7 @@ static void export_array(struct mddev *mddev)
 
 static bool set_in_sync(struct mddev *mddev)
 {
-	WARN_ON_ONCE(NR_CPUS != 1 && !spin_is_locked(&mddev->lock));
+	lockdep_assert_held(&mddev->lock);
 	if (!mddev->in_sync) {
 		mddev->sync_checkers++;
 		spin_unlock(&mddev->lock);
@@ -2418,10 +2454,18 @@ repeat:
 		}
 	}
 
-	/* First make sure individual recovery_offsets are correct */
+	/*
+	 * First make sure individual recovery_offsets are correct
+	 * curr_resync_completed can only be used during recovery.
+	 * During reshape/resync it might use array-addresses rather
+	 * that device addresses.
+	 */
 	rdev_for_each(rdev, mddev) {
 		if (rdev->raid_disk >= 0 &&
 		    mddev->delta_disks >= 0 &&
+		    test_bit(MD_RECOVERY_RUNNING, &mddev->recovery) &&
+		    test_bit(MD_RECOVERY_RECOVER, &mddev->recovery) &&
+		    !test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
 		    !test_bit(Journal, &rdev->flags) &&
 		    !test_bit(In_sync, &rdev->flags) &&
 		    mddev->curr_resync_completed > rdev->recovery_offset)
@@ -2637,7 +2681,7 @@ state_show(struct md_rdev *rdev, char *page)
 {
 	char *sep = ",";
 	size_t len = 0;
-	unsigned long flags = ACCESS_ONCE(rdev->flags);
+	unsigned long flags = READ_ONCE(rdev->flags);
 
 	if (test_bit(Faulty, &flags) ||
 	    (!test_bit(ExternalBbl, &flags) &&
@@ -4810,7 +4854,7 @@ suspend_lo_show(struct mddev *mddev, char *page)
 static ssize_t
 suspend_lo_store(struct mddev *mddev, const char *buf, size_t len)
 {
-	unsigned long long old, new;
+	unsigned long long new;
 	int err;
 
 	err = kstrtoull(buf, 10, &new);
@@ -4826,16 +4870,10 @@ suspend_lo_store(struct mddev *mddev, const char *buf, size_t len)
 	if (mddev->pers == NULL ||
 	    mddev->pers->quiesce == NULL)
 		goto unlock;
-	old = mddev->suspend_lo;
+	mddev_suspend(mddev);
 	mddev->suspend_lo = new;
-	if (new >= old)
-		/* Shrinking suspended region */
-		mddev->pers->quiesce(mddev, 2);
-	else {
-		/* Expanding suspended region - need to wait */
-		mddev->pers->quiesce(mddev, 1);
-		mddev->pers->quiesce(mddev, 0);
-	}
+	mddev_resume(mddev);
+
 	err = 0;
 unlock:
 	mddev_unlock(mddev);
@@ -4853,7 +4891,7 @@ suspend_hi_show(struct mddev *mddev, char *page)
 static ssize_t
 suspend_hi_store(struct mddev *mddev, const char *buf, size_t len)
 {
-	unsigned long long old, new;
+	unsigned long long new;
 	int err;
 
 	err = kstrtoull(buf, 10, &new);
@@ -4866,19 +4904,13 @@ suspend_hi_store(struct mddev *mddev, const char *buf, size_t len)
 	if (err)
 		return err;
 	err = -EINVAL;
-	if (mddev->pers == NULL ||
-	    mddev->pers->quiesce == NULL)
+	if (mddev->pers == NULL)
 		goto unlock;
-	old = mddev->suspend_hi;
+
+	mddev_suspend(mddev);
 	mddev->suspend_hi = new;
-	if (new <= old)
-		/* Shrinking suspended region */
-		mddev->pers->quiesce(mddev, 2);
-	else {
-		/* Expanding suspended region - need to wait */
-		mddev->pers->quiesce(mddev, 1);
-		mddev->pers->quiesce(mddev, 0);
-	}
+	mddev_resume(mddev);
+
 	err = 0;
 unlock:
 	mddev_unlock(mddev);
@@ -5820,8 +5852,14 @@ void md_stop(struct mddev *mddev)
 	 * This is called from dm-raid
 	 */
 	__md_stop(mddev);
-	if (mddev->bio_set)
+	if (mddev->bio_set) {
 		bioset_free(mddev->bio_set);
+		mddev->bio_set = NULL;
+	}
+	if (mddev->sync_set) {
+		bioset_free(mddev->sync_set);
+		mddev->sync_set = NULL;
+	}
 }
 
 EXPORT_SYMBOL_GPL(md_stop);
@@ -6348,7 +6386,7 @@ static int add_new_disk(struct mddev *mddev, mdu_disk_info_t *info)
 					break;
 				}
 			}
-			if (has_journal) {
+			if (has_journal || mddev->bitmap) {
 				export_rdev(rdev);
 				return -EBUSY;
 			}
@@ -6604,22 +6642,26 @@ static int set_bitmap_file(struct mddev *mddev, int fd)
 		return -ENOENT; /* cannot remove what isn't there */
 	err = 0;
 	if (mddev->pers) {
-		mddev->pers->quiesce(mddev, 1);
 		if (fd >= 0) {
 			struct bitmap *bitmap;
 
 			bitmap = bitmap_create(mddev, -1);
+			mddev_suspend(mddev);
 			if (!IS_ERR(bitmap)) {
 				mddev->bitmap = bitmap;
 				err = bitmap_load(mddev);
 			} else
 				err = PTR_ERR(bitmap);
-		}
-		if (fd < 0 || err) {
+			if (err) {
+				bitmap_destroy(mddev);
+				fd = -1;
+			}
+			mddev_resume(mddev);
+		} else if (fd < 0) {
+			mddev_suspend(mddev);
 			bitmap_destroy(mddev);
-			fd = -1; /* make sure to put the file */
+			mddev_resume(mddev);
 		}
-		mddev->pers->quiesce(mddev, 0);
 	}
 	if (fd < 0) {
 		struct file *f = mddev->bitmap_info.file;
@@ -6721,7 +6763,7 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info)
 
 void md_set_array_sectors(struct mddev *mddev, sector_t array_sectors)
 {
-	WARN(!mddev_is_locked(mddev), "%s: unlocked mddev!\n", __func__);
+	lockdep_assert_held(&mddev->reconfig_mutex);
 
 	if (mddev->external_size)
 		return;
@@ -6903,8 +6945,8 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 				mddev->bitmap_info.default_offset;
 			mddev->bitmap_info.space =
 				mddev->bitmap_info.default_space;
-			mddev->pers->quiesce(mddev, 1);
 			bitmap = bitmap_create(mddev, -1);
+			mddev_suspend(mddev);
 			if (!IS_ERR(bitmap)) {
 				mddev->bitmap = bitmap;
 				rv = bitmap_load(mddev);
@@ -6912,7 +6954,7 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 				rv = PTR_ERR(bitmap);
 			if (rv)
 				bitmap_destroy(mddev);
-			mddev->pers->quiesce(mddev, 0);
+			mddev_resume(mddev);
 		} else {
 			/* remove the bitmap */
 			if (!mddev->bitmap) {
@@ -6935,9 +6977,9 @@ static int update_array_info(struct mddev *mddev, mdu_array_info_t *info)
 				mddev->bitmap_info.nodes = 0;
 				md_cluster_ops->leave(mddev);
 			}
-			mddev->pers->quiesce(mddev, 1);
+			mddev_suspend(mddev);
 			bitmap_destroy(mddev);
-			mddev->pers->quiesce(mddev, 0);
+			mddev_resume(mddev);
 			mddev->bitmap_info.offset = 0;
 		}
 	}
@@ -7454,8 +7496,8 @@ void md_wakeup_thread(struct md_thread *thread)
 {
 	if (thread) {
 		pr_debug("md: waking up MD thread %s.\n", thread->tsk->comm);
-		if (!test_and_set_bit(THREAD_WAKEUP, &thread->flags))
-			wake_up(&thread->wqueue);
+		set_bit(THREAD_WAKEUP, &thread->flags);
+		wake_up(&thread->wqueue);
 	}
 }
 EXPORT_SYMBOL(md_wakeup_thread);
@@ -8025,7 +8067,8 @@ bool md_write_start(struct mddev *mddev, struct bio *bi)
 	if (did_change)
 		sysfs_notify_dirent_safe(mddev->sysfs_state);
 	wait_event(mddev->sb_wait,
-		   !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) && !mddev->suspended);
+		   !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) ||
+		   mddev->suspended);
 	if (test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags)) {
 		percpu_ref_put(&mddev->writes_pending);
 		return false;
@@ -8096,7 +8139,6 @@ void md_allow_write(struct mddev *mddev)
 		sysfs_notify_dirent_safe(mddev->sysfs_state);
 		/* wait for the dirty state to be recorded in the metadata */
 		wait_event(mddev->sb_wait,
-			   !test_bit(MD_SB_CHANGE_CLEAN, &mddev->sb_flags) &&
 			   !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags));
 	} else
 		spin_unlock(&mddev->lock);
@@ -8463,16 +8505,19 @@ void md_do_sync(struct md_thread *thread)
 		} else {
 			if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery))
 				mddev->curr_resync = MaxSector;
-			rcu_read_lock();
-			rdev_for_each_rcu(rdev, mddev)
-				if (rdev->raid_disk >= 0 &&
-				    mddev->delta_disks >= 0 &&
-				    !test_bit(Journal, &rdev->flags) &&
-				    !test_bit(Faulty, &rdev->flags) &&
-				    !test_bit(In_sync, &rdev->flags) &&
-				    rdev->recovery_offset < mddev->curr_resync)
-					rdev->recovery_offset = mddev->curr_resync;
-			rcu_read_unlock();
+			if (!test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery) &&
+			    test_bit(MD_RECOVERY_RECOVER, &mddev->recovery)) {
+				rcu_read_lock();
+				rdev_for_each_rcu(rdev, mddev)
+					if (rdev->raid_disk >= 0 &&
+					    mddev->delta_disks >= 0 &&
+					    !test_bit(Journal, &rdev->flags) &&
+					    !test_bit(Faulty, &rdev->flags) &&
+					    !test_bit(In_sync, &rdev->flags) &&
+					    rdev->recovery_offset < mddev->curr_resync)
+						rdev->recovery_offset = mddev->curr_resync;
+				rcu_read_unlock();
+			}
 		}
 	}
  skip:
@@ -8799,6 +8844,16 @@ void md_check_recovery(struct mddev *mddev)
 	unlock:
 		wake_up(&mddev->sb_wait);
 		mddev_unlock(mddev);
+	} else if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags) && mddev->sb_flags) {
+		/* Write superblock - thread that called mddev_suspend()
+		 * holds reconfig_mutex for us.
+		 */
+		set_bit(MD_UPDATING_SB, &mddev->flags);
+		smp_mb__after_atomic();
+		if (test_bit(MD_ALLOW_SB_UPDATE, &mddev->flags))
+			md_update_sb(mddev, 0);
+		clear_bit_unlock(MD_UPDATING_SB, &mddev->flags);
+		wake_up(&mddev->sb_wait);
 	}
 }
 EXPORT_SYMBOL(md_check_recovery);
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 561d22b9a9a8..7d6bcf0eba0c 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -237,6 +237,12 @@ enum mddev_flags {
 				 */
 	MD_HAS_PPL,		/* The raid array has PPL feature set */
 	MD_HAS_MULTIPLE_PPLS,	/* The raid array has multiple PPLs feature set */
+	MD_ALLOW_SB_UPDATE,	/* md_check_recovery is allowed to update
+				 * the metadata without taking reconfig_mutex.
+				 */
+	MD_UPDATING_SB,		/* md_check_recovery is updating the metadata
+				 * without explicitly holding reconfig_mutex.
+				 */
 };
 
 enum mddev_sb_flags {
@@ -494,11 +500,6 @@ static inline void mddev_lock_nointr(struct mddev *mddev)
 	mutex_lock(&mddev->reconfig_mutex);
 }
 
-static inline int mddev_is_locked(struct mddev *mddev)
-{
-	return mutex_is_locked(&mddev->reconfig_mutex);
-}
-
 static inline int mddev_trylock(struct mddev *mddev)
 {
 	return mutex_trylock(&mddev->reconfig_mutex);
@@ -538,12 +539,11 @@ struct md_personality
 	int (*check_reshape) (struct mddev *mddev);
 	int (*start_reshape) (struct mddev *mddev);
 	void (*finish_reshape) (struct mddev *mddev);
-	/* quiesce moves between quiescence states
-	 * 0 - fully active
-	 * 1 - no new requests allowed
-	 * others - reserved
+	/* quiesce suspends or resumes internal processing.
+	 * 1 - stop new actions and wait for action io to complete
+	 * 0 - return to normal behaviour
 	 */
-	void (*quiesce) (struct mddev *mddev, int state);
+	void (*quiesce) (struct mddev *mddev, int quiesce);
 	/* takeover is used to transition an array from one
 	 * personality to another.  The new personality must be able
 	 * to handle the data in the current layout.
@@ -692,6 +692,7 @@ extern void md_stop_writes(struct mddev *mddev);
 extern int md_rdev_init(struct md_rdev *rdev);
 extern void md_rdev_clear(struct md_rdev *rdev);
 
+extern void md_handle_request(struct mddev *mddev, struct bio *bio);
 extern void mddev_suspend(struct mddev *mddev);
 extern void mddev_resume(struct mddev *mddev);
 extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
diff --git a/drivers/md/persistent-data/Makefile b/drivers/md/persistent-data/Makefile
index ff528792c358..66be7c66479a 100644
--- a/drivers/md/persistent-data/Makefile
+++ b/drivers/md/persistent-data/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DM_PERSISTENT_DATA) += dm-persistent-data.o
 dm-persistent-data-objs := \
 	dm-array.o \
diff --git a/drivers/md/persistent-data/dm-space-map-metadata.c b/drivers/md/persistent-data/dm-space-map-metadata.c
index 4aed69d9dd17..aec449243966 100644
--- a/drivers/md/persistent-data/dm-space-map-metadata.c
+++ b/drivers/md/persistent-data/dm-space-map-metadata.c
@@ -11,6 +11,7 @@
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/device-mapper.h>
+#include <linux/kernel.h>
 
 #define DM_MSG_PREFIX "space map metadata"
 
@@ -111,7 +112,7 @@ static bool brb_empty(struct bop_ring_buffer *brb)
 static unsigned brb_next(struct bop_ring_buffer *brb, unsigned old)
 {
 	unsigned r = old + 1;
-	return (r >= (sizeof(brb->bops) / sizeof(*brb->bops))) ? 0 : r;
+	return r >= ARRAY_SIZE(brb->bops) ? 0 : r;
 }
 
 static int brb_push(struct bop_ring_buffer *brb,
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c
index 5a00fc118470..5ecba9eef441 100644
--- a/drivers/md/raid0.c
+++ b/drivers/md/raid0.c
@@ -768,7 +768,7 @@ static void *raid0_takeover(struct mddev *mddev)
 	return ERR_PTR(-EINVAL);
 }
 
-static void raid0_quiesce(struct mddev *mddev, int state)
+static void raid0_quiesce(struct mddev *mddev, int quiesce)
 {
 }
 
diff --git a/drivers/md/raid0.h b/drivers/md/raid0.h
index 7127a623f5da..540e65d92642 100644
--- a/drivers/md/raid0.h
+++ b/drivers/md/raid0.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RAID0_H
 #define _RAID0_H
 
diff --git a/drivers/md/raid1-10.c b/drivers/md/raid1-10.c
index 9f2670b45f31..400001b815db 100644
--- a/drivers/md/raid1-10.c
+++ b/drivers/md/raid1-10.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Maximum size of each resync request */
 #define RESYNC_BLOCK_SIZE (64*1024)
 #define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index f3f3e40dc9d8..cc9d337a1ed3 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -37,13 +37,12 @@
 #include <linux/module.h>
 #include <linux/seq_file.h>
 #include <linux/ratelimit.h>
-#include <linux/sched/signal.h>
 
 #include <trace/events/block.h>
 
 #include "md.h"
 #include "raid1.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 
 #define UNSUPPORTED_MDDEV_FLAGS		\
 	((1L << MD_HAS_JOURNAL) |	\
@@ -990,14 +989,6 @@ static void wait_barrier(struct r1conf *conf, sector_t sector_nr)
 	_wait_barrier(conf, idx);
 }
 
-static void wait_all_barriers(struct r1conf *conf)
-{
-	int idx;
-
-	for (idx = 0; idx < BARRIER_BUCKETS_NR; idx++)
-		_wait_barrier(conf, idx);
-}
-
 static void _allow_barrier(struct r1conf *conf, int idx)
 {
 	atomic_dec(&conf->nr_pending[idx]);
@@ -1011,14 +1002,6 @@ static void allow_barrier(struct r1conf *conf, sector_t sector_nr)
 	_allow_barrier(conf, idx);
 }
 
-static void allow_all_barriers(struct r1conf *conf)
-{
-	int idx;
-
-	for (idx = 0; idx < BARRIER_BUCKETS_NR; idx++)
-		_allow_barrier(conf, idx);
-}
-
 /* conf->resync_lock should be held */
 static int get_unqueued_pending(struct r1conf *conf)
 {
@@ -1303,42 +1286,28 @@ static void raid1_write_request(struct mddev *mddev, struct bio *bio,
 	int first_clone;
 	int max_sectors;
 
-	/*
-	 * Register the new request and wait if the reconstruction
-	 * thread has put up a bar for new requests.
-	 * Continue immediately if no resync is active currently.
-	 */
-
-
-	if ((bio_end_sector(bio) > mddev->suspend_lo &&
-	    bio->bi_iter.bi_sector < mddev->suspend_hi) ||
-	    (mddev_is_clustered(mddev) &&
+	if (mddev_is_clustered(mddev) &&
 	     md_cluster_ops->area_resyncing(mddev, WRITE,
-		     bio->bi_iter.bi_sector, bio_end_sector(bio)))) {
+		     bio->bi_iter.bi_sector, bio_end_sector(bio))) {
 
-		/*
-		 * As the suspend_* range is controlled by userspace, we want
-		 * an interruptible wait.
-		 */
 		DEFINE_WAIT(w);
 		for (;;) {
-			sigset_t full, old;
 			prepare_to_wait(&conf->wait_barrier,
-					&w, TASK_INTERRUPTIBLE);
-			if (bio_end_sector(bio) <= mddev->suspend_lo ||
-			    bio->bi_iter.bi_sector >= mddev->suspend_hi ||
-			    (mddev_is_clustered(mddev) &&
-			     !md_cluster_ops->area_resyncing(mddev, WRITE,
-				     bio->bi_iter.bi_sector,
-				     bio_end_sector(bio))))
+					&w, TASK_IDLE);
+			if (!md_cluster_ops->area_resyncing(mddev, WRITE,
+							bio->bi_iter.bi_sector,
+							bio_end_sector(bio)))
 				break;
-			sigfillset(&full);
-			sigprocmask(SIG_BLOCK, &full, &old);
 			schedule();
-			sigprocmask(SIG_SETMASK, &old, NULL);
 		}
 		finish_wait(&conf->wait_barrier, &w);
 	}
+
+	/*
+	 * Register the new request and wait if the reconstruction
+	 * thread has put up a bar for new requests.
+	 * Continue immediately if no resync is active currently.
+	 */
 	wait_barrier(conf, bio->bi_iter.bi_sector);
 
 	r1_bio = alloc_r1bio(mddev, bio);
@@ -1654,8 +1623,12 @@ static void print_conf(struct r1conf *conf)
 
 static void close_sync(struct r1conf *conf)
 {
-	wait_all_barriers(conf);
-	allow_all_barriers(conf);
+	int idx;
+
+	for (idx = 0; idx < BARRIER_BUCKETS_NR; idx++) {
+		_wait_barrier(conf, idx);
+		_allow_barrier(conf, idx);
+	}
 
 	mempool_destroy(conf->r1buf_pool);
 	conf->r1buf_pool = NULL;
@@ -3277,21 +3250,14 @@ static int raid1_reshape(struct mddev *mddev)
 	return 0;
 }
 
-static void raid1_quiesce(struct mddev *mddev, int state)
+static void raid1_quiesce(struct mddev *mddev, int quiesce)
 {
 	struct r1conf *conf = mddev->private;
 
-	switch(state) {
-	case 2: /* wake for suspend */
-		wake_up(&conf->wait_barrier);
-		break;
-	case 1:
+	if (quiesce)
 		freeze_array(conf, 0);
-		break;
-	case 0:
+	else
 		unfreeze_array(conf);
-		break;
-	}
 }
 
 static void *raid1_takeover(struct mddev *mddev)
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index c8894ef1e9d2..c7294e7557e0 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RAID1_H
 #define _RAID1_H
 
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 374df5796649..b9edbc747a95 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -29,7 +29,7 @@
 #include "md.h"
 #include "raid10.h"
 #include "raid0.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 
 /*
  * RAID10 provides a combination of RAID0 and RAID1 functionality.
@@ -136,10 +136,13 @@ static void r10bio_pool_free(void *r10_bio, void *data)
 	kfree(r10_bio);
 }
 
+#define RESYNC_SECTORS (RESYNC_BLOCK_SIZE >> 9)
 /* amount of memory to reserve for resync requests */
 #define RESYNC_WINDOW (1024*1024)
 /* maximum number of concurrent requests, memory permitting */
 #define RESYNC_DEPTH (32*1024*1024/RESYNC_BLOCK_SIZE)
+#define CLUSTER_RESYNC_WINDOW (16 * RESYNC_WINDOW)
+#define CLUSTER_RESYNC_WINDOW_SECTORS (CLUSTER_RESYNC_WINDOW >> 9)
 
 /*
  * When performing a resync, we need to read and compare, so
@@ -383,12 +386,11 @@ static void raid10_end_read_request(struct bio *bio)
 {
 	int uptodate = !bio->bi_status;
 	struct r10bio *r10_bio = bio->bi_private;
-	int slot, dev;
+	int slot;
 	struct md_rdev *rdev;
 	struct r10conf *conf = r10_bio->mddev->private;
 
 	slot = r10_bio->read_slot;
-	dev = r10_bio->devs[slot].devnum;
 	rdev = r10_bio->devs[slot].rdev;
 	/*
 	 * this branch is our 'one mirror IO has finished' event handler:
@@ -748,7 +750,6 @@ static struct md_rdev *read_balance(struct r10conf *conf,
 
 	raid10_find_phys(conf, r10_bio);
 	rcu_read_lock();
-	sectors = r10_bio->sectors;
 	best_slot = -1;
 	best_rdev = NULL;
 	best_dist = MaxSector;
@@ -761,8 +762,11 @@ static struct md_rdev *read_balance(struct r10conf *conf,
 	 * the resync window. We take the first readable disk when
 	 * above the resync window.
 	 */
-	if (conf->mddev->recovery_cp < MaxSector
-	    && (this_sector + sectors >= conf->next_resync))
+	if ((conf->mddev->recovery_cp < MaxSector
+	     && (this_sector + sectors >= conf->next_resync)) ||
+	    (mddev_is_clustered(conf->mddev) &&
+	     md_cluster_ops->area_resyncing(conf->mddev, READ, this_sector,
+					    this_sector + sectors)))
 		do_balance = 0;
 
 	for (slot = 0; slot < conf->copies ; slot++) {
@@ -1293,6 +1297,22 @@ static void raid10_write_request(struct mddev *mddev, struct bio *bio,
 	sector_t sectors;
 	int max_sectors;
 
+	if ((mddev_is_clustered(mddev) &&
+	     md_cluster_ops->area_resyncing(mddev, WRITE,
+					    bio->bi_iter.bi_sector,
+					    bio_end_sector(bio)))) {
+		DEFINE_WAIT(w);
+		for (;;) {
+			prepare_to_wait(&conf->wait_barrier,
+					&w, TASK_IDLE);
+			if (!md_cluster_ops->area_resyncing(mddev, WRITE,
+				 bio->bi_iter.bi_sector, bio_end_sector(bio)))
+				break;
+			schedule();
+		}
+		finish_wait(&conf->wait_barrier, &w);
+	}
+
 	/*
 	 * Register the new request and wait if the reconstruction
 	 * thread has put up a bar for new requests.
@@ -2575,7 +2595,6 @@ static void handle_read_error(struct mddev *mddev, struct r10bio *r10_bio)
 	struct bio *bio;
 	struct r10conf *conf = mddev->private;
 	struct md_rdev *rdev = r10_bio->devs[slot].rdev;
-	sector_t bio_last_sector;
 
 	/* we got a read error. Maybe the drive is bad.  Maybe just
 	 * the block and we can fix it.
@@ -2586,7 +2605,6 @@ static void handle_read_error(struct mddev *mddev, struct r10bio *r10_bio)
 	 * frozen.
 	 */
 	bio = r10_bio->devs[slot].bio;
-	bio_last_sector = r10_bio->devs[slot].addr + rdev->data_offset + r10_bio->sectors;
 	bio_put(bio);
 	r10_bio->devs[slot].bio = NULL;
 
@@ -2826,6 +2844,43 @@ static struct r10bio *raid10_alloc_init_r10buf(struct r10conf *conf)
 }
 
 /*
+ * Set cluster_sync_high since we need other nodes to add the
+ * range [cluster_sync_low, cluster_sync_high] to suspend list.
+ */
+static void raid10_set_cluster_sync_high(struct r10conf *conf)
+{
+	sector_t window_size;
+	int extra_chunk, chunks;
+
+	/*
+	 * First, here we define "stripe" as a unit which across
+	 * all member devices one time, so we get chunks by use
+	 * raid_disks / near_copies. Otherwise, if near_copies is
+	 * close to raid_disks, then resync window could increases
+	 * linearly with the increase of raid_disks, which means
+	 * we will suspend a really large IO window while it is not
+	 * necessary. If raid_disks is not divisible by near_copies,
+	 * an extra chunk is needed to ensure the whole "stripe" is
+	 * covered.
+	 */
+
+	chunks = conf->geo.raid_disks / conf->geo.near_copies;
+	if (conf->geo.raid_disks % conf->geo.near_copies == 0)
+		extra_chunk = 0;
+	else
+		extra_chunk = 1;
+	window_size = (chunks + extra_chunk) * conf->mddev->chunk_sectors;
+
+	/*
+	 * At least use a 32M window to align with raid1's resync window
+	 */
+	window_size = (CLUSTER_RESYNC_WINDOW_SECTORS > window_size) ?
+			CLUSTER_RESYNC_WINDOW_SECTORS : window_size;
+
+	conf->cluster_sync_high = conf->cluster_sync_low + window_size;
+}
+
+/*
  * perform a "sync" on one "block"
  *
  * We need to make sure that no normal I/O request - particularly write
@@ -2897,6 +2952,9 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 	    test_bit(MD_RECOVERY_RESHAPE, &mddev->recovery))
 		max_sector = mddev->resync_max_sectors;
 	if (sector_nr >= max_sector) {
+		conf->cluster_sync_low = 0;
+		conf->cluster_sync_high = 0;
+
 		/* If we aborted, we need to abort the
 		 * sync on the 'current' bitmap chucks (there can
 		 * be several when recovering multiple devices).
@@ -3251,7 +3309,17 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 		/* resync. Schedule a read for every block at this virt offset */
 		int count = 0;
 
-		bitmap_cond_end_sync(mddev->bitmap, sector_nr, 0);
+		/*
+		 * Since curr_resync_completed could probably not update in
+		 * time, and we will set cluster_sync_low based on it.
+		 * Let's check against "sector_nr + 2 * RESYNC_SECTORS" for
+		 * safety reason, which ensures curr_resync_completed is
+		 * updated in bitmap_cond_end_sync.
+		 */
+		bitmap_cond_end_sync(mddev->bitmap, sector_nr,
+				     mddev_is_clustered(mddev) &&
+				     (sector_nr + 2 * RESYNC_SECTORS >
+				      conf->cluster_sync_high));
 
 		if (!bitmap_start_sync(mddev->bitmap, sector_nr,
 				       &sync_blocks, mddev->degraded) &&
@@ -3385,6 +3453,52 @@ static sector_t raid10_sync_request(struct mddev *mddev, sector_t sector_nr,
 	} while (++page_idx < RESYNC_PAGES);
 	r10_bio->sectors = nr_sectors;
 
+	if (mddev_is_clustered(mddev) &&
+	    test_bit(MD_RECOVERY_SYNC, &mddev->recovery)) {
+		/* It is resync not recovery */
+		if (conf->cluster_sync_high < sector_nr + nr_sectors) {
+			conf->cluster_sync_low = mddev->curr_resync_completed;
+			raid10_set_cluster_sync_high(conf);
+			/* Send resync message */
+			md_cluster_ops->resync_info_update(mddev,
+						conf->cluster_sync_low,
+						conf->cluster_sync_high);
+		}
+	} else if (mddev_is_clustered(mddev)) {
+		/* This is recovery not resync */
+		sector_t sect_va1, sect_va2;
+		bool broadcast_msg = false;
+
+		for (i = 0; i < conf->geo.raid_disks; i++) {
+			/*
+			 * sector_nr is a device address for recovery, so we
+			 * need translate it to array address before compare
+			 * with cluster_sync_high.
+			 */
+			sect_va1 = raid10_find_virt(conf, sector_nr, i);
+
+			if (conf->cluster_sync_high < sect_va1 + nr_sectors) {
+				broadcast_msg = true;
+				/*
+				 * curr_resync_completed is similar as
+				 * sector_nr, so make the translation too.
+				 */
+				sect_va2 = raid10_find_virt(conf,
+					mddev->curr_resync_completed, i);
+
+				if (conf->cluster_sync_low == 0 ||
+				    conf->cluster_sync_low > sect_va2)
+					conf->cluster_sync_low = sect_va2;
+			}
+		}
+		if (broadcast_msg) {
+			raid10_set_cluster_sync_high(conf);
+			md_cluster_ops->resync_info_update(mddev,
+						conf->cluster_sync_low,
+						conf->cluster_sync_high);
+		}
+	}
+
 	while (biolist) {
 		bio = biolist;
 		biolist = biolist->bi_next;
@@ -3644,6 +3758,18 @@ static int raid10_run(struct mddev *mddev)
 	if (!conf)
 		goto out;
 
+	if (mddev_is_clustered(conf->mddev)) {
+		int fc, fo;
+
+		fc = (mddev->layout >> 8) & 255;
+		fo = mddev->layout & (1<<16);
+		if (fc > 1 || fo > 0) {
+			pr_err("only near layout is supported by clustered"
+				" raid10\n");
+			goto out;
+		}
+	}
+
 	mddev->thread = conf->thread;
 	conf->thread = NULL;
 
@@ -3832,18 +3958,14 @@ static void raid10_free(struct mddev *mddev, void *priv)
 	kfree(conf);
 }
 
-static void raid10_quiesce(struct mddev *mddev, int state)
+static void raid10_quiesce(struct mddev *mddev, int quiesce)
 {
 	struct r10conf *conf = mddev->private;
 
-	switch(state) {
-	case 1:
+	if (quiesce)
 		raise_barrier(conf, 0);
-		break;
-	case 0:
+	else
 		lower_barrier(conf);
-		break;
-	}
 }
 
 static int raid10_resize(struct mddev *mddev, sector_t sectors)
@@ -4578,15 +4700,18 @@ static int handle_reshape_read_error(struct mddev *mddev,
 	/* Use sync reads to get the blocks from somewhere else */
 	int sectors = r10_bio->sectors;
 	struct r10conf *conf = mddev->private;
-	struct {
-		struct r10bio r10_bio;
-		struct r10dev devs[conf->copies];
-	} on_stack;
-	struct r10bio *r10b = &on_stack.r10_bio;
+	struct r10bio *r10b;
 	int slot = 0;
 	int idx = 0;
 	struct page **pages;
 
+	r10b = kmalloc(sizeof(*r10b) +
+	       sizeof(struct r10dev) * conf->copies, GFP_NOIO);
+	if (!r10b) {
+		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
+		return -ENOMEM;
+	}
+
 	/* reshape IOs share pages from .devs[0].bio */
 	pages = get_resync_pages(r10_bio->devs[0].bio)->pages;
 
@@ -4635,11 +4760,13 @@ static int handle_reshape_read_error(struct mddev *mddev,
 			/* couldn't read this block, must give up */
 			set_bit(MD_RECOVERY_INTR,
 				&mddev->recovery);
+			kfree(r10b);
 			return -EIO;
 		}
 		sectors -= s;
 		idx++;
 	}
+	kfree(r10b);
 	return 0;
 }
 
diff --git a/drivers/md/raid10.h b/drivers/md/raid10.h
index 735ce1a3d260..db2ac22ac1b4 100644
--- a/drivers/md/raid10.h
+++ b/drivers/md/raid10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RAID10_H
 #define _RAID10_H
 
@@ -88,6 +89,12 @@ struct r10conf {
 	 * the new thread here until we fully activate the array.
 	 */
 	struct md_thread	*thread;
+
+	/*
+	 * Keep track of cluster resync window to send to other nodes.
+	 */
+	sector_t		cluster_sync_low;
+	sector_t		cluster_sync_high;
 };
 
 /*
diff --git a/drivers/md/raid5-cache.c b/drivers/md/raid5-cache.c
index 0b7406ac8ce1..f1c86d938502 100644
--- a/drivers/md/raid5-cache.c
+++ b/drivers/md/raid5-cache.c
@@ -23,7 +23,7 @@
 #include <linux/types.h>
 #include "md.h"
 #include "raid5.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 #include "raid5-log.h"
 
 /*
@@ -539,7 +539,7 @@ static void r5l_log_run_stripes(struct r5l_log *log)
 {
 	struct r5l_io_unit *io, *next;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
 		/* don't change list order */
@@ -555,7 +555,7 @@ static void r5l_move_to_end_ios(struct r5l_log *log)
 {
 	struct r5l_io_unit *io, *next;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	list_for_each_entry_safe(io, next, &log->running_ios, log_sibling) {
 		/* don't change list order */
@@ -693,6 +693,8 @@ static void r5c_disable_writeback_async(struct work_struct *work)
 	struct r5l_log *log = container_of(work, struct r5l_log,
 					   disable_writeback_work);
 	struct mddev *mddev = log->rdev->mddev;
+	struct r5conf *conf = mddev->private;
+	int locked = 0;
 
 	if (log->r5c_journal_mode == R5C_JOURNAL_MODE_WRITE_THROUGH)
 		return;
@@ -701,11 +703,15 @@ static void r5c_disable_writeback_async(struct work_struct *work)
 
 	/* wait superblock change before suspend */
 	wait_event(mddev->sb_wait,
-		   !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags));
-
-	mddev_suspend(mddev);
-	log->r5c_journal_mode = R5C_JOURNAL_MODE_WRITE_THROUGH;
-	mddev_resume(mddev);
+		   conf->log == NULL ||
+		   (!test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) &&
+		    (locked = mddev_trylock(mddev))));
+	if (locked) {
+		mddev_suspend(mddev);
+		log->r5c_journal_mode = R5C_JOURNAL_MODE_WRITE_THROUGH;
+		mddev_resume(mddev);
+		mddev_unlock(mddev);
+	}
 }
 
 static void r5l_submit_current_io(struct r5l_log *log)
@@ -1194,7 +1200,7 @@ static void r5l_run_no_mem_stripe(struct r5l_log *log)
 {
 	struct stripe_head *sh;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	if (!list_empty(&log->no_mem_stripes)) {
 		sh = list_first_entry(&log->no_mem_stripes,
@@ -1210,7 +1216,7 @@ static bool r5l_complete_finished_ios(struct r5l_log *log)
 	struct r5l_io_unit *io, *next;
 	bool found = false;
 
-	assert_spin_locked(&log->io_list_lock);
+	lockdep_assert_held(&log->io_list_lock);
 
 	list_for_each_entry_safe(io, next, &log->finished_ios, log_sibling) {
 		/* don't change list order */
@@ -1382,7 +1388,7 @@ static void r5c_flush_stripe(struct r5conf *conf, struct stripe_head *sh)
 	 * raid5_release_stripe() while holding conf->device_lock
 	 */
 	BUG_ON(test_bit(STRIPE_ON_RELEASE_LIST, &sh->state));
-	assert_spin_locked(&conf->device_lock);
+	lockdep_assert_held(&conf->device_lock);
 
 	list_del_init(&sh->lru);
 	atomic_inc(&sh->count);
@@ -1409,7 +1415,7 @@ void r5c_flush_cache(struct r5conf *conf, int num)
 	int count;
 	struct stripe_head *sh, *next;
 
-	assert_spin_locked(&conf->device_lock);
+	lockdep_assert_held(&conf->device_lock);
 	if (!conf->log)
 		return;
 
@@ -1583,21 +1589,21 @@ void r5l_wake_reclaim(struct r5l_log *log, sector_t space)
 	md_wakeup_thread(log->reclaim_thread);
 }
 
-void r5l_quiesce(struct r5l_log *log, int state)
+void r5l_quiesce(struct r5l_log *log, int quiesce)
 {
 	struct mddev *mddev;
-	if (!log || state == 2)
+	if (!log)
 		return;
-	if (state == 0)
-		kthread_unpark(log->reclaim_thread->tsk);
-	else if (state == 1) {
+
+	if (quiesce) {
 		/* make sure r5l_write_super_and_discard_space exits */
 		mddev = log->rdev->mddev;
 		wake_up(&mddev->sb_wait);
 		kthread_park(log->reclaim_thread->tsk);
 		r5l_wake_reclaim(log, MaxSector);
 		r5l_do_reclaim(log);
-	}
+	} else
+		kthread_unpark(log->reclaim_thread->tsk);
 }
 
 bool r5l_log_disk_error(struct r5conf *conf)
@@ -3165,6 +3171,8 @@ void r5l_exit_log(struct r5conf *conf)
 	conf->log = NULL;
 	synchronize_rcu();
 
+	/* Ensure disable_writeback_work wakes up and exits */
+	wake_up(&conf->mddev->sb_wait);
 	flush_work(&log->disable_writeback_work);
 	md_unregister_thread(&log->reclaim_thread);
 	mempool_destroy(log->meta_pool);
diff --git a/drivers/md/raid5-log.h b/drivers/md/raid5-log.h
index 328d67aedda4..284578b0a349 100644
--- a/drivers/md/raid5-log.h
+++ b/drivers/md/raid5-log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RAID5_LOG_H
 #define _RAID5_LOG_H
 
@@ -8,7 +9,7 @@ extern void r5l_write_stripe_run(struct r5l_log *log);
 extern void r5l_flush_stripe_to_raid(struct r5l_log *log);
 extern void r5l_stripe_write_finished(struct stripe_head *sh);
 extern int r5l_handle_flush_request(struct r5l_log *log, struct bio *bio);
-extern void r5l_quiesce(struct r5l_log *log, int state);
+extern void r5l_quiesce(struct r5l_log *log, int quiesce);
 extern bool r5l_log_disk_error(struct r5conf *conf);
 extern bool r5c_is_writeback(struct r5l_log *log);
 extern int
diff --git a/drivers/md/raid5-ppl.c b/drivers/md/raid5-ppl.c
index cd026c88f7ef..628c0bf7b9fd 100644
--- a/drivers/md/raid5-ppl.c
+++ b/drivers/md/raid5-ppl.c
@@ -758,7 +758,8 @@ static int ppl_recover_entry(struct ppl_log *log, struct ppl_header_entry *e,
 				 (unsigned long long)sector);
 
 			rdev = conf->disks[dd_idx].rdev;
-			if (!rdev) {
+			if (!rdev || (!test_bit(In_sync, &rdev->flags) &&
+				      sector >= rdev->recovery_offset)) {
 				pr_debug("%s:%*s data member disk %d missing\n",
 					 __func__, indent, "", dd_idx);
 				update_parity = false;
@@ -1296,8 +1297,7 @@ int ppl_init_log(struct r5conf *conf)
 
 	if (ret) {
 		goto err;
-	} else if (!mddev->pers &&
-		   mddev->recovery_cp == 0 && !mddev->degraded &&
+	} else if (!mddev->pers && mddev->recovery_cp == 0 &&
 		   ppl_conf->recovered_entries > 0 &&
 		   ppl_conf->mismatch_count == 0) {
 		/*
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 4188a4881148..31dc25e2871a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -55,7 +55,6 @@
 #include <linux/ratelimit.h>
 #include <linux/nodemask.h>
 #include <linux/flex_array.h>
-#include <linux/sched/signal.h>
 
 #include <trace/events/block.h>
 #include <linux/list_sort.h>
@@ -63,7 +62,7 @@
 #include "md.h"
 #include "raid5.h"
 #include "raid0.h"
-#include "bitmap.h"
+#include "md-bitmap.h"
 #include "raid5-log.h"
 
 #define UNSUPPORTED_MDDEV_FLAGS	(1L << MD_FAILFAST_SUPPORTED)
@@ -811,6 +810,14 @@ static void stripe_add_to_batch_list(struct r5conf *conf, struct stripe_head *sh
 			spin_unlock(&head->batch_head->batch_lock);
 			goto unlock_out;
 		}
+		/*
+		 * We must assign batch_head of this stripe within the
+		 * batch_lock, otherwise clear_batch_ready of batch head
+		 * stripe could clear BATCH_READY bit of this stripe and
+		 * this stripe->batch_head doesn't get assigned, which
+		 * could confuse clear_batch_ready for this stripe
+		 */
+		sh->batch_head = head->batch_head;
 
 		/*
 		 * at this point, head's BATCH_READY could be cleared, but we
@@ -818,8 +825,6 @@ static void stripe_add_to_batch_list(struct r5conf *conf, struct stripe_head *sh
 		 */
 		list_add(&sh->batch_list, &head->batch_list);
 		spin_unlock(&head->batch_head->batch_lock);
-
-		sh->batch_head = head->batch_head;
 	} else {
 		head->batch_head = head;
 		sh->batch_head = head->batch_head;
@@ -1812,8 +1817,11 @@ static void ops_complete_reconstruct(void *stripe_head_ref)
 		struct r5dev *dev = &sh->dev[i];
 
 		if (dev->written || i == pd_idx || i == qd_idx) {
-			if (!discard && !test_bit(R5_SkipCopy, &dev->flags))
+			if (!discard && !test_bit(R5_SkipCopy, &dev->flags)) {
 				set_bit(R5_UPTODATE, &dev->flags);
+				if (test_bit(STRIPE_EXPAND_READY, &sh->state))
+					set_bit(R5_Expanded, &dev->flags);
+			}
 			if (fua)
 				set_bit(R5_WantFUA, &dev->flags);
 			if (sync)
@@ -4599,7 +4607,8 @@ static void break_stripe_batch_list(struct stripe_head *head_sh,
 
 		set_mask_bits(&sh->state, ~(STRIPE_EXPAND_SYNC_FLAGS |
 					    (1 << STRIPE_PREREAD_ACTIVE) |
-					    (1 << STRIPE_DEGRADED)),
+					    (1 << STRIPE_DEGRADED) |
+					    (1 << STRIPE_ON_UNPLUG_LIST)),
 			      head_sh->state & (1 << STRIPE_INSYNC));
 
 		sh->check_state = head_sh->check_state;
@@ -5675,28 +5684,6 @@ static bool raid5_make_request(struct mddev *mddev, struct bio * bi)
 				goto retry;
 			}
 
-			if (rw == WRITE &&
-			    logical_sector >= mddev->suspend_lo &&
-			    logical_sector < mddev->suspend_hi) {
-				raid5_release_stripe(sh);
-				/* As the suspend_* range is controlled by
-				 * userspace, we want an interruptible
-				 * wait.
-				 */
-				prepare_to_wait(&conf->wait_for_overlap,
-						&w, TASK_INTERRUPTIBLE);
-				if (logical_sector >= mddev->suspend_lo &&
-				    logical_sector < mddev->suspend_hi) {
-					sigset_t full, old;
-					sigfillset(&full);
-					sigprocmask(SIG_BLOCK, &full, &old);
-					schedule();
-					sigprocmask(SIG_SETMASK, &old, NULL);
-					do_prepare = true;
-				}
-				goto retry;
-			}
-
 			if (test_bit(STRIPE_EXPANDING, &sh->state) ||
 			    !add_stripe_bio(sh, bi, dd_idx, rw, previous)) {
 				/* Stripe is busy expanding or
@@ -5751,6 +5738,7 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk
 	 */
 	struct r5conf *conf = mddev->private;
 	struct stripe_head *sh;
+	struct md_rdev *rdev;
 	sector_t first_sector, last_sector;
 	int raid_disks = conf->previous_raid_disks;
 	int data_disks = raid_disks - conf->max_degraded;
@@ -5873,6 +5861,15 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk
 			return 0;
 		mddev->reshape_position = conf->reshape_progress;
 		mddev->curr_resync_completed = sector_nr;
+		if (!mddev->reshape_backwards)
+			/* Can update recovery_offset */
+			rdev_for_each(rdev, mddev)
+				if (rdev->raid_disk >= 0 &&
+				    !test_bit(Journal, &rdev->flags) &&
+				    !test_bit(In_sync, &rdev->flags) &&
+				    rdev->recovery_offset < sector_nr)
+					rdev->recovery_offset = sector_nr;
+
 		conf->reshape_checkpoint = jiffies;
 		set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
 		md_wakeup_thread(mddev->thread);
@@ -5971,6 +5968,14 @@ finish:
 			goto ret;
 		mddev->reshape_position = conf->reshape_progress;
 		mddev->curr_resync_completed = sector_nr;
+		if (!mddev->reshape_backwards)
+			/* Can update recovery_offset */
+			rdev_for_each(rdev, mddev)
+				if (rdev->raid_disk >= 0 &&
+				    !test_bit(Journal, &rdev->flags) &&
+				    !test_bit(In_sync, &rdev->flags) &&
+				    rdev->recovery_offset < sector_nr)
+					rdev->recovery_offset = sector_nr;
 		conf->reshape_checkpoint = jiffies;
 		set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags);
 		md_wakeup_thread(mddev->thread);
@@ -6065,7 +6070,7 @@ static inline sector_t raid5_sync_request(struct mddev *mddev, sector_t sector_n
 	 */
 	rcu_read_lock();
 	for (i = 0; i < conf->raid_disks; i++) {
-		struct md_rdev *rdev = ACCESS_ONCE(conf->disks[i].rdev);
+		struct md_rdev *rdev = READ_ONCE(conf->disks[i].rdev);
 
 		if (rdev == NULL || test_bit(Faulty, &rdev->flags))
 			still_degraded = 1;
@@ -6568,14 +6573,17 @@ static ssize_t
 raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
 {
 	struct r5conf *conf;
-	unsigned long new;
+	unsigned int new;
 	int err;
 	struct r5worker_group *new_groups, *old_groups;
 	int group_cnt, worker_cnt_per_group;
 
 	if (len >= PAGE_SIZE)
 		return -EINVAL;
-	if (kstrtoul(page, 10, &new))
+	if (kstrtouint(page, 10, &new))
+		return -EINVAL;
+	/* 8192 should be big enough */
+	if (new > 8192)
 		return -EINVAL;
 
 	err = mddev_lock(mddev);
@@ -7146,6 +7154,13 @@ static int raid5_run(struct mddev *mddev)
 			min_offset_diff = diff;
 	}
 
+	if ((test_bit(MD_HAS_JOURNAL, &mddev->flags) || journal_dev) &&
+	    (mddev->bitmap_info.offset || mddev->bitmap_info.file)) {
+		pr_notice("md/raid:%s: array cannot have both journal and bitmap\n",
+			  mdname(mddev));
+		return -EINVAL;
+	}
+
 	if (mddev->reshape_position != MaxSector) {
 		/* Check that we can continue the reshape.
 		 * Difficulties arise if the stripe we would write to
@@ -7948,6 +7963,7 @@ static void end_reshape(struct r5conf *conf)
 {
 
 	if (!test_bit(MD_RECOVERY_INTR, &conf->mddev->recovery)) {
+		struct md_rdev *rdev;
 
 		spin_lock_irq(&conf->device_lock);
 		conf->previous_raid_disks = conf->raid_disks;
@@ -7955,6 +7971,11 @@ static void end_reshape(struct r5conf *conf)
 		smp_wmb();
 		conf->reshape_progress = MaxSector;
 		conf->mddev->reshape_position = MaxSector;
+		rdev_for_each(rdev, conf->mddev)
+			if (rdev->raid_disk >= 0 &&
+			    !test_bit(Journal, &rdev->flags) &&
+			    !test_bit(In_sync, &rdev->flags))
+				rdev->recovery_offset = MaxSector;
 		spin_unlock_irq(&conf->device_lock);
 		wake_up(&conf->wait_for_overlap);
 
@@ -8010,16 +8031,12 @@ static void raid5_finish_reshape(struct mddev *mddev)
 	}
 }
 
-static void raid5_quiesce(struct mddev *mddev, int state)
+static void raid5_quiesce(struct mddev *mddev, int quiesce)
 {
 	struct r5conf *conf = mddev->private;
 
-	switch(state) {
-	case 2: /* resume for a suspend */
-		wake_up(&conf->wait_for_overlap);
-		break;
-
-	case 1: /* stop all writes */
+	if (quiesce) {
+		/* stop all writes */
 		lock_all_device_hash_locks_irq(conf);
 		/* '2' tells resync/reshape to pause so that all
 		 * active stripes can drain
@@ -8035,17 +8052,15 @@ static void raid5_quiesce(struct mddev *mddev, int state)
 		unlock_all_device_hash_locks_irq(conf);
 		/* allow reshape to continue */
 		wake_up(&conf->wait_for_overlap);
-		break;
-
-	case 0: /* re-enable writes */
+	} else {
+		/* re-enable writes */
 		lock_all_device_hash_locks_irq(conf);
 		conf->quiesce = 0;
 		wake_up(&conf->wait_for_quiescent);
 		wake_up(&conf->wait_for_overlap);
 		unlock_all_device_hash_locks_irq(conf);
-		break;
 	}
-	r5l_quiesce(conf->log, state);
+	r5l_quiesce(conf->log, quiesce);
 }
 
 static void *raid45_takeover_raid0(struct mddev *mddev, int level)
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index f6536399677a..2e6123825095 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RAID5_H
 #define _RAID5_H
 
diff --git a/drivers/media/Makefile b/drivers/media/Makefile
index 044503aa8801..594b462ddf0e 100644
--- a/drivers/media/Makefile
+++ b/drivers/media/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel multimedia device drivers.
 #
diff --git a/drivers/media/cec/Makefile b/drivers/media/cec/Makefile
index 3353c1741961..41ee3325e1ea 100644
--- a/drivers/media/cec/Makefile
+++ b/drivers/media/cec/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cec-objs := cec-core.o cec-adap.o cec-api.o cec-edid.o
 
 ifeq ($(CONFIG_CEC_NOTIFIER),y)
diff --git a/drivers/media/cec/cec-adap.c b/drivers/media/cec/cec-adap.c
index dd769e40416f..f8a808d45034 100644
--- a/drivers/media/cec/cec-adap.c
+++ b/drivers/media/cec/cec-adap.c
@@ -181,7 +181,10 @@ static void cec_queue_msg_fh(struct cec_fh *fh, const struct cec_msg *msg)
 {
 	static const struct cec_event ev_lost_msgs = {
 		.event = CEC_EVENT_LOST_MSGS,
-		.lost_msgs.lost_msgs = 1,
+		.flags = 0,
+		{
+			.lost_msgs = { 1 },
+		},
 	};
 	struct cec_msg_entry *entry;
 
@@ -1794,12 +1797,19 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
 	 */
 	switch (msg->msg[1]) {
 	case CEC_MSG_GET_CEC_VERSION:
-	case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
 	case CEC_MSG_ABORT:
 	case CEC_MSG_GIVE_DEVICE_POWER_STATUS:
-	case CEC_MSG_GIVE_PHYSICAL_ADDR:
 	case CEC_MSG_GIVE_OSD_NAME:
+		/*
+		 * These messages reply with a directed message, so ignore if
+		 * the initiator is Unregistered.
+		 */
+		if (!adap->passthrough && from_unregistered)
+			return 0;
+		/* Fall through */
+	case CEC_MSG_GIVE_DEVICE_VENDOR_ID:
 	case CEC_MSG_GIVE_FEATURES:
+	case CEC_MSG_GIVE_PHYSICAL_ADDR:
 		/*
 		 * Skip processing these messages if the passthrough mode
 		 * is on.
@@ -1807,7 +1817,7 @@ static int cec_receive_notify(struct cec_adapter *adap, struct cec_msg *msg,
 		if (adap->passthrough)
 			goto skip_processing;
 		/* Ignore if addressing is wrong */
-		if (is_broadcast || from_unregistered)
+		if (is_broadcast)
 			return 0;
 		break;
 
diff --git a/drivers/media/common/b2c2/Makefile b/drivers/media/common/b2c2/Makefile
index 24993a5b38ba..73df4a334eda 100644
--- a/drivers/media/common/b2c2/Makefile
+++ b/drivers/media/common/b2c2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 b2c2-flexcop-objs += flexcop.o flexcop-fe-tuner.o flexcop-i2c.o
 b2c2-flexcop-objs += flexcop-sram.o flexcop-eeprom.o flexcop-misc.o
 b2c2-flexcop-objs += flexcop-hw-filter.o
diff --git a/drivers/media/common/b2c2/flexcop-common.h b/drivers/media/common/b2c2/flexcop-common.h
index 2533574c0cf4..b7e5e4c17acb 100644
--- a/drivers/media/common/b2c2/flexcop-common.h
+++ b/drivers/media/common/b2c2/flexcop-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-common.h - common header file for device-specific source files
diff --git a/drivers/media/common/b2c2/flexcop-eeprom.c b/drivers/media/common/b2c2/flexcop-eeprom.c
index 844c7836c2a6..0f2151cd36f2 100644
--- a/drivers/media/common/b2c2/flexcop-eeprom.c
+++ b/drivers/media/common/b2c2/flexcop-eeprom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-eeprom.c - eeprom access methods (currently only MAC address reading)
diff --git a/drivers/media/common/b2c2/flexcop-fe-tuner.c b/drivers/media/common/b2c2/flexcop-fe-tuner.c
index 7636606f0be5..a1ce3e8eb1d3 100644
--- a/drivers/media/common/b2c2/flexcop-fe-tuner.c
+++ b/drivers/media/common/b2c2/flexcop-fe-tuner.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-fe-tuner.c - methods for frontend attachment and DiSEqC controlling
diff --git a/drivers/media/common/b2c2/flexcop-hw-filter.c b/drivers/media/common/b2c2/flexcop-hw-filter.c
index 8220257903ef..335f30a54ba8 100644
--- a/drivers/media/common/b2c2/flexcop-hw-filter.c
+++ b/drivers/media/common/b2c2/flexcop-hw-filter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-hw-filter.c - pid and mac address filtering and control functions
diff --git a/drivers/media/common/b2c2/flexcop-i2c.c b/drivers/media/common/b2c2/flexcop-i2c.c
index 58d39a59fc09..564da6fa900d 100644
--- a/drivers/media/common/b2c2/flexcop-i2c.c
+++ b/drivers/media/common/b2c2/flexcop-i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-i2c.c - flexcop internal 2Wire bus (I2C) and dvb i2c initialization
diff --git a/drivers/media/common/b2c2/flexcop-misc.c b/drivers/media/common/b2c2/flexcop-misc.c
index bb0d95fe64f9..83d01d3a81cc 100644
--- a/drivers/media/common/b2c2/flexcop-misc.c
+++ b/drivers/media/common/b2c2/flexcop-misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-misc.c - miscellaneous functions
diff --git a/drivers/media/common/b2c2/flexcop-reg.h b/drivers/media/common/b2c2/flexcop-reg.h
index 835c54d60e74..dd7c962db565 100644
--- a/drivers/media/common/b2c2/flexcop-reg.h
+++ b/drivers/media/common/b2c2/flexcop-reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-reg.h - register abstraction for FlexCopII, FlexCopIIb and FlexCopIII
diff --git a/drivers/media/common/b2c2/flexcop-sram.c b/drivers/media/common/b2c2/flexcop-sram.c
index 185c285f70fc..d97962eb0112 100644
--- a/drivers/media/common/b2c2/flexcop-sram.c
+++ b/drivers/media/common/b2c2/flexcop-sram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-sram.c - functions for controlling the SRAM
diff --git a/drivers/media/common/b2c2/flexcop.h b/drivers/media/common/b2c2/flexcop.h
index 8942bdacbf61..911ece59ea02 100644
--- a/drivers/media/common/b2c2/flexcop.h
+++ b/drivers/media/common/b2c2/flexcop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop.h - private header file for all flexcop-chip-source files
diff --git a/drivers/media/common/b2c2/flexcop_ibi_value_be.h b/drivers/media/common/b2c2/flexcop_ibi_value_be.h
index 8f64bdbd72bb..c97a0d6d7b3a 100644
--- a/drivers/media/common/b2c2/flexcop_ibi_value_be.h
+++ b/drivers/media/common/b2c2/flexcop_ibi_value_be.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * register descriptions
  * see flexcop.c for copyright information
diff --git a/drivers/media/common/b2c2/flexcop_ibi_value_le.h b/drivers/media/common/b2c2/flexcop_ibi_value_le.h
index c75830d7d942..5db3b46f21ee 100644
--- a/drivers/media/common/b2c2/flexcop_ibi_value_le.h
+++ b/drivers/media/common/b2c2/flexcop_ibi_value_le.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * register descriptions
  * see flexcop.c for copyright information
diff --git a/drivers/media/common/btcx-risc.h b/drivers/media/common/btcx-risc.h
index 03583ef90506..76dc16f402b9 100644
--- a/drivers/media/common/btcx-risc.h
+++ b/drivers/media/common/btcx-risc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  */
 struct btcx_riscmem {
diff --git a/drivers/media/common/cypress_firmware.h b/drivers/media/common/cypress_firmware.h
index 1e4f27356205..0aa46e602b07 100644
--- a/drivers/media/common/cypress_firmware.h
+++ b/drivers/media/common/cypress_firmware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
  * see dvb-usb-init.c for copyright information.
diff --git a/drivers/media/common/saa7146/saa7146_i2c.c b/drivers/media/common/saa7146/saa7146_i2c.c
index 75897f95e4b4..f9e099d812c8 100644
--- a/drivers/media/common/saa7146/saa7146_i2c.c
+++ b/drivers/media/common/saa7146/saa7146_i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <media/drv-intf/saa7146_vv.h>
diff --git a/drivers/media/common/saa7146/saa7146_vbi.c b/drivers/media/common/saa7146/saa7146_vbi.c
index d79e4d7ecd9f..371c6f8606de 100644
--- a/drivers/media/common/saa7146/saa7146_vbi.c
+++ b/drivers/media/common/saa7146/saa7146_vbi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <media/drv-intf/saa7146_vv.h>
 
 static int vbi_pixel_to_capture = 720 * 2;
diff --git a/drivers/media/common/siano/Makefile b/drivers/media/common/siano/Makefile
index 4c0567f106b2..88e2b7ffc537 100644
--- a/drivers/media/common/siano/Makefile
+++ b/drivers/media/common/siano/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 smsmdtv-objs := smscoreapi.o sms-cards.o smsendian.o
 smsdvb-objs := smsdvb-main.o
 
diff --git a/drivers/media/dvb-core/Makefile b/drivers/media/dvb-core/Makefile
index 281bc89576e6..47e2e391bfb8 100644
--- a/drivers/media/dvb-core/Makefile
+++ b/drivers/media/dvb-core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel DVB device drivers.
 #
diff --git a/drivers/media/dvb-core/dvb-usb-ids.h b/drivers/media/dvb-core/dvb-usb-ids.h
index 5b6041d462bc..54d7d8a48b18 100644
--- a/drivers/media/dvb-core/dvb-usb-ids.h
+++ b/drivers/media/dvb-core/dvb-usb-ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* dvb-usb-ids.h is part of the DVB USB library.
  *
  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de) see
diff --git a/drivers/media/dvb-core/dvb_frontend.c b/drivers/media/dvb-core/dvb_frontend.c
index 2fcba1616168..9139d01ba7ed 100644
--- a/drivers/media/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb-core/dvb_frontend.c
@@ -141,22 +141,39 @@ struct dvb_frontend_private {
 static void dvb_frontend_invoke_release(struct dvb_frontend *fe,
 					void (*release)(struct dvb_frontend *fe));
 
-static void dvb_frontend_free(struct kref *ref)
+static void __dvb_frontend_free(struct dvb_frontend *fe)
 {
-	struct dvb_frontend *fe =
-		container_of(ref, struct dvb_frontend, refcount);
 	struct dvb_frontend_private *fepriv = fe->frontend_priv;
 
+	if (!fepriv)
+		return;
+
 	dvb_free_device(fepriv->dvbdev);
 
 	dvb_frontend_invoke_release(fe, fe->ops.release);
 
 	kfree(fepriv);
+	fe->frontend_priv = NULL;
+}
+
+static void dvb_frontend_free(struct kref *ref)
+{
+	struct dvb_frontend *fe =
+		container_of(ref, struct dvb_frontend, refcount);
+
+	__dvb_frontend_free(fe);
 }
 
 static void dvb_frontend_put(struct dvb_frontend *fe)
 {
-	kref_put(&fe->refcount, dvb_frontend_free);
+	/*
+	 * Check if the frontend was registered, as otherwise
+	 * kref was not initialized yet.
+	 */
+	if (fe->frontend_priv)
+		kref_put(&fe->refcount, dvb_frontend_free);
+	else
+		__dvb_frontend_free(fe);
 }
 
 static void dvb_frontend_get(struct dvb_frontend *fe)
diff --git a/drivers/media/dvb-core/dvb_ringbuffer.c b/drivers/media/dvb-core/dvb_ringbuffer.c
index 2322af1b8742..53011629c9ad 100644
--- a/drivers/media/dvb-core/dvb_ringbuffer.c
+++ b/drivers/media/dvb-core/dvb_ringbuffer.c
@@ -66,12 +66,12 @@ ssize_t dvb_ringbuffer_free(struct dvb_ringbuffer *rbuf)
 {
 	ssize_t free;
 
-	/* ACCESS_ONCE() to load read pointer on writer side
+	/* READ_ONCE() to load read pointer on writer side
 	 * this pairs with smp_store_release() in dvb_ringbuffer_read(),
 	 * dvb_ringbuffer_read_user(), dvb_ringbuffer_flush(),
 	 * or dvb_ringbuffer_reset()
 	 */
-	free = ACCESS_ONCE(rbuf->pread) - rbuf->pwrite;
+	free = READ_ONCE(rbuf->pread) - rbuf->pwrite;
 	if (free <= 0)
 		free += rbuf->size;
 	return free-1;
@@ -143,7 +143,7 @@ ssize_t dvb_ringbuffer_read_user(struct dvb_ringbuffer *rbuf, u8 __user *buf, si
 		todo -= split;
 		/* smp_store_release() for read pointer update to ensure
 		 * that buf is not overwritten until read is complete,
-		 * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+		 * this pairs with READ_ONCE() in dvb_ringbuffer_free()
 		 */
 		smp_store_release(&rbuf->pread, 0);
 	}
@@ -168,7 +168,7 @@ void dvb_ringbuffer_read(struct dvb_ringbuffer *rbuf, u8 *buf, size_t len)
 		todo -= split;
 		/* smp_store_release() for read pointer update to ensure
 		 * that buf is not overwritten until read is complete,
-		 * this pairs with ACCESS_ONCE() in dvb_ringbuffer_free()
+		 * this pairs with READ_ONCE() in dvb_ringbuffer_free()
 		 */
 		smp_store_release(&rbuf->pread, 0);
 	}
diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile
index f45f6a4a4371..d025eb373842 100644
--- a/drivers/media/dvb-frontends/Makefile
+++ b/drivers/media/dvb-frontends/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel DVB frontend device drivers.
 #
diff --git a/drivers/media/dvb-frontends/dib3000mc.c b/drivers/media/dvb-frontends/dib3000mc.c
index 224283fe100a..4d086a7248e9 100644
--- a/drivers/media/dvb-frontends/dib3000mc.c
+++ b/drivers/media/dvb-frontends/dib3000mc.c
@@ -55,29 +55,57 @@ struct dib3000mc_state {
 
 static u16 dib3000mc_read_word(struct dib3000mc_state *state, u16 reg)
 {
-	u8 wb[2] = { (reg >> 8) | 0x80, reg & 0xff };
-	u8 rb[2];
 	struct i2c_msg msg[2] = {
-		{ .addr = state->i2c_addr >> 1, .flags = 0,        .buf = wb, .len = 2 },
-		{ .addr = state->i2c_addr >> 1, .flags = I2C_M_RD, .buf = rb, .len = 2 },
+		{ .addr = state->i2c_addr >> 1, .flags = 0,        .len = 2 },
+		{ .addr = state->i2c_addr >> 1, .flags = I2C_M_RD, .len = 2 },
 	};
+	u16 word;
+	u8 *b;
+
+	b = kmalloc(4, GFP_KERNEL);
+	if (!b)
+		return 0;
+
+	b[0] = (reg >> 8) | 0x80;
+	b[1] = reg;
+	b[2] = 0;
+	b[3] = 0;
+
+	msg[0].buf = b;
+	msg[1].buf = b + 2;
 
 	if (i2c_transfer(state->i2c_adap, msg, 2) != 2)
 		dprintk("i2c read error on %d\n",reg);
 
-	return (rb[0] << 8) | rb[1];
+	word = (b[2] << 8) | b[3];
+	kfree(b);
+
+	return word;
 }
 
 static int dib3000mc_write_word(struct dib3000mc_state *state, u16 reg, u16 val)
 {
-	u8 b[4] = {
-		(reg >> 8) & 0xff, reg & 0xff,
-		(val >> 8) & 0xff, val & 0xff,
-	};
 	struct i2c_msg msg = {
-		.addr = state->i2c_addr >> 1, .flags = 0, .buf = b, .len = 4
+		.addr = state->i2c_addr >> 1, .flags = 0, .len = 4
 	};
-	return i2c_transfer(state->i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+	int rc;
+	u8 *b;
+
+	b = kmalloc(4, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+
+	b[0] = reg >> 8;
+	b[1] = reg;
+	b[2] = val >> 8;
+	b[3] = val;
+
+	msg.buf = b;
+
+	rc = i2c_transfer(state->i2c_adap, &msg, 1) != 1 ? -EREMOTEIO : 0;
+	kfree(b);
+
+	return rc;
 }
 
 static int dib3000mc_identify(struct dib3000mc_state *state)
diff --git a/drivers/media/dvb-frontends/dib7000m.h b/drivers/media/dvb-frontends/dib7000m.h
index 8f84dfa9bb58..df7ecb4314cd 100644
--- a/drivers/media/dvb-frontends/dib7000m.h
+++ b/drivers/media/dvb-frontends/dib7000m.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DIB7000M_H
 #define DIB7000M_H
 
diff --git a/drivers/media/dvb-frontends/dib7000p.h b/drivers/media/dvb-frontends/dib7000p.h
index 205fbbff632b..2e10b5ccce67 100644
--- a/drivers/media/dvb-frontends/dib7000p.h
+++ b/drivers/media/dvb-frontends/dib7000p.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DIB7000P_H
 #define DIB7000P_H
 
diff --git a/drivers/media/dvb-frontends/dib8000.h b/drivers/media/dvb-frontends/dib8000.h
index 75cc8e47ec8f..b920fe769021 100644
--- a/drivers/media/dvb-frontends/dib8000.h
+++ b/drivers/media/dvb-frontends/dib8000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DIB8000_H
 #define DIB8000_H
 
diff --git a/drivers/media/dvb-frontends/dib9000.h b/drivers/media/dvb-frontends/dib9000.h
index 40883b41e66b..bb03362ac7a3 100644
--- a/drivers/media/dvb-frontends/dib9000.h
+++ b/drivers/media/dvb-frontends/dib9000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DIB9000_H
 #define DIB9000_H
 
diff --git a/drivers/media/dvb-frontends/dibx000_common.h b/drivers/media/dvb-frontends/dibx000_common.h
index 61f4152f24ee..8784af962eba 100644
--- a/drivers/media/dvb-frontends/dibx000_common.h
+++ b/drivers/media/dvb-frontends/dibx000_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DIBX000_COMMON_H
 #define DIBX000_COMMON_H
 
diff --git a/drivers/media/dvb-frontends/drxk.h b/drivers/media/dvb-frontends/drxk.h
index a629897eb905..eb9bdc9f59c4 100644
--- a/drivers/media/dvb-frontends/drxk.h
+++ b/drivers/media/dvb-frontends/drxk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DRXK_H_
 #define _DRXK_H_
 
diff --git a/drivers/media/dvb-frontends/drxk_hard.h b/drivers/media/dvb-frontends/drxk_hard.h
index 9ed88e014942..a850a876deee 100644
--- a/drivers/media/dvb-frontends/drxk_hard.h
+++ b/drivers/media/dvb-frontends/drxk_hard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "drxk_map.h"
 
 #define DRXK_VERSION_MAJOR 0
diff --git a/drivers/media/dvb-frontends/drxk_map.h b/drivers/media/dvb-frontends/drxk_map.h
index 761613f9fd5a..9234ef4fb68d 100644
--- a/drivers/media/dvb-frontends/drxk_map.h
+++ b/drivers/media/dvb-frontends/drxk_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define  AUD_COMM_EXEC__A                                                  0x1000000
 #define    AUD_COMM_EXEC_STOP                                              0x0
 #define  FEC_COMM_EXEC__A                                                  0x1C00000
diff --git a/drivers/media/dvb-frontends/dvb-pll.c b/drivers/media/dvb-frontends/dvb-pll.c
index 7bec3e028bee..5553b89b804e 100644
--- a/drivers/media/dvb-frontends/dvb-pll.c
+++ b/drivers/media/dvb-frontends/dvb-pll.c
@@ -753,13 +753,19 @@ struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 				    struct i2c_adapter *i2c,
 				    unsigned int pll_desc_id)
 {
-	u8 b1 [] = { 0 };
-	struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD,
-			       .buf = b1, .len = 1 };
+	u8 *b1;
+	struct i2c_msg msg = { .addr = pll_addr, .flags = I2C_M_RD, .len = 1 };
 	struct dvb_pll_priv *priv = NULL;
 	int ret;
 	const struct dvb_pll_desc *desc;
 
+	b1 = kmalloc(1, GFP_KERNEL);
+	if (!b1)
+		return NULL;
+
+	b1[0] = 0;
+	msg.buf = b1;
+
 	if ((id[dvb_pll_devcount] > DVB_PLL_UNDEFINED) &&
 	    (id[dvb_pll_devcount] < ARRAY_SIZE(pll_list)))
 		pll_desc_id = id[dvb_pll_devcount];
@@ -773,15 +779,19 @@ struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 			fe->ops.i2c_gate_ctrl(fe, 1);
 
 		ret = i2c_transfer (i2c, &msg, 1);
-		if (ret != 1)
+		if (ret != 1) {
+			kfree(b1);
 			return NULL;
+		}
 		if (fe->ops.i2c_gate_ctrl)
 			     fe->ops.i2c_gate_ctrl(fe, 0);
 	}
 
 	priv = kzalloc(sizeof(struct dvb_pll_priv), GFP_KERNEL);
-	if (priv == NULL)
+	if (!priv) {
+		kfree(b1);
 		return NULL;
+	}
 
 	priv->pll_i2c_address = pll_addr;
 	priv->i2c = i2c;
@@ -811,6 +821,8 @@ struct dvb_frontend *dvb_pll_attach(struct dvb_frontend *fe, int pll_addr,
 				"insmod option" : "autodetected");
 	}
 
+	kfree(b1);
+
 	return fe;
 }
 EXPORT_SYMBOL(dvb_pll_attach);
diff --git a/drivers/media/dvb-frontends/dvb-pll.h b/drivers/media/dvb-frontends/dvb-pll.h
index bf9602a88b6c..6aaa9c6bff9c 100644
--- a/drivers/media/dvb-frontends/dvb-pll.h
+++ b/drivers/media/dvb-frontends/dvb-pll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * descriptions + helper functions for simple dvb plls.
  */
diff --git a/drivers/media/dvb-frontends/nxt6000_priv.h b/drivers/media/dvb-frontends/nxt6000_priv.h
index 0422e580038a..d317df02c8d7 100644
--- a/drivers/media/dvb-frontends/nxt6000_priv.h
+++ b/drivers/media/dvb-frontends/nxt6000_priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Public Include File for DRV6000 users
  * (ie. NxtWave Communications - NXT6000 demodulator driver)
diff --git a/drivers/media/dvb-frontends/si21xx.h b/drivers/media/dvb-frontends/si21xx.h
index b1be62f1983a..43d480bb6ea2 100644
--- a/drivers/media/dvb-frontends/si21xx.h
+++ b/drivers/media/dvb-frontends/si21xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SI21XX_H
 #define SI21XX_H
 
diff --git a/drivers/media/dvb-frontends/sp887x.h b/drivers/media/dvb-frontends/sp887x.h
index 412f011e6dfd..a680cc22379c 100644
--- a/drivers/media/dvb-frontends/sp887x.h
+++ b/drivers/media/dvb-frontends/sp887x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
    Driver for the Spase sp887x demodulator
 */
diff --git a/drivers/media/dvb-frontends/tda18271c2dd.h b/drivers/media/dvb-frontends/tda18271c2dd.h
index e6ccf240f54c..289653db68e4 100644
--- a/drivers/media/dvb-frontends/tda18271c2dd.h
+++ b/drivers/media/dvb-frontends/tda18271c2dd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TDA18271C2DD_H_
 #define _TDA18271C2DD_H_
 
diff --git a/drivers/media/dvb-frontends/tda18271c2dd_maps.h b/drivers/media/dvb-frontends/tda18271c2dd_maps.h
index f3bca5c237d7..5f75516bc0cb 100644
--- a/drivers/media/dvb-frontends/tda18271c2dd_maps.h
+++ b/drivers/media/dvb-frontends/tda18271c2dd_maps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 enum HF_S {
 	HF_None = 0, HF_B, HF_DK, HF_G, HF_I, HF_L, HF_L1, HF_MN, HF_FM_Radio,
 	HF_AnalogMax, HF_DVBT_6MHZ, HF_DVBT_7MHZ, HF_DVBT_8MHZ,
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index c843c181dfb9..f104650d6000 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 msp3400-objs	:=	msp3400-driver.o msp3400-kthreads.o
 obj-$(CONFIG_VIDEO_MSP3400) += msp3400.o
 
diff --git a/drivers/media/i2c/msp3400-driver.h b/drivers/media/i2c/msp3400-driver.h
index a8702aca187a..b6c7698bce5a 100644
--- a/drivers/media/i2c/msp3400-driver.h
+++ b/drivers/media/i2c/msp3400-driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  */
 
diff --git a/drivers/media/i2c/soc_camera/Makefile b/drivers/media/i2c/soc_camera/Makefile
index 78532a7fb8e2..faa2df8901d2 100644
--- a/drivers/media/i2c/soc_camera/Makefile
+++ b/drivers/media/i2c/soc_camera/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SOC_CAMERA_IMX074)		+= imx074.o
 obj-$(CONFIG_SOC_CAMERA_MT9M001)	+= mt9m001.o
 obj-$(CONFIG_SOC_CAMERA_MT9T031)	+= mt9t031.o
diff --git a/drivers/media/i2c/tea6415c.h b/drivers/media/i2c/tea6415c.h
index 3a47d697536e..f43228207445 100644
--- a/drivers/media/i2c/tea6415c.h
+++ b/drivers/media/i2c/tea6415c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDED_TEA6415C__
 #define __INCLUDED_TEA6415C__
 
diff --git a/drivers/media/i2c/tea6420.h b/drivers/media/i2c/tea6420.h
index 4aa3edb3e193..07f9d72a86bb 100644
--- a/drivers/media/i2c/tea6420.h
+++ b/drivers/media/i2c/tea6420.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDED_TEA6420__
 #define __INCLUDED_TEA6420__
 
diff --git a/drivers/media/mmc/Makefile b/drivers/media/mmc/Makefile
index 31e297a202fb..e847aa82ae41 100644
--- a/drivers/media/mmc/Makefile
+++ b/drivers/media/mmc/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += siano/
diff --git a/drivers/media/pci/Makefile b/drivers/media/pci/Makefile
index a7e8af0f64a7..1ab759e9b1bb 100644
--- a/drivers/media/pci/Makefile
+++ b/drivers/media/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel multimedia device drivers.
 #
diff --git a/drivers/media/pci/b2c2/Makefile b/drivers/media/pci/b2c2/Makefile
index b894320a5f21..35d6835ae43e 100644
--- a/drivers/media/pci/b2c2/Makefile
+++ b/drivers/media/pci/b2c2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifneq ($(CONFIG_DVB_B2C2_FLEXCOP_PCI),)
 b2c2-flexcop-pci-objs += flexcop-dma.o
 endif
diff --git a/drivers/media/pci/b2c2/flexcop-dma.c b/drivers/media/pci/b2c2/flexcop-dma.c
index 913dc97f8b49..f07610a1646d 100644
--- a/drivers/media/pci/b2c2/flexcop-dma.c
+++ b/drivers/media/pci/b2c2/flexcop-dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-dma.c - configuring and controlling the DMA of the FlexCop
diff --git a/drivers/media/pci/bt8xx/Makefile b/drivers/media/pci/bt8xx/Makefile
index 2d4c3dd88be1..009f1dc1521f 100644
--- a/drivers/media/pci/bt8xx/Makefile
+++ b/drivers/media/pci/bt8xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 bttv-objs      :=      bttv-driver.o bttv-cards.o bttv-if.o \
 		       bttv-risc.o bttv-vbi.o bttv-i2c.o bttv-gpio.o \
 		       bttv-input.o bttv-audio-hook.o btcx-risc.o
diff --git a/drivers/media/pci/bt8xx/btcx-risc.h b/drivers/media/pci/bt8xx/btcx-risc.h
index 1ed7a000160a..dc774a64cd1f 100644
--- a/drivers/media/pci/bt8xx/btcx-risc.h
+++ b/drivers/media/pci/bt8xx/btcx-risc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 struct btcx_riscmem {
 	unsigned int   size;
 	__le32         *cpu;
diff --git a/drivers/media/pci/bt8xx/bttv.h b/drivers/media/pci/bt8xx/bttv.h
index 91301c3cad1e..eb67e362acf7 100644
--- a/drivers/media/pci/bt8xx/bttv.h
+++ b/drivers/media/pci/bt8xx/bttv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *  bttv - Bt848 frame grabber driver
diff --git a/drivers/media/pci/bt8xx/dst_priv.h b/drivers/media/pci/bt8xx/dst_priv.h
index 3974a4c6ebe7..a4319d41d141 100644
--- a/drivers/media/pci/bt8xx/dst_priv.h
+++ b/drivers/media/pci/bt8xx/dst_priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dst-bt878.h: part of the DST driver for the TwinHan DST Frontend
  *
diff --git a/drivers/media/pci/cx18/Makefile b/drivers/media/pci/cx18/Makefile
index d3ff1545c2c5..98914a40f6ac 100644
--- a/drivers/media/pci/cx18/Makefile
+++ b/drivers/media/pci/cx18/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cx18-objs    := cx18-driver.o cx18-cards.o cx18-i2c.o cx18-firmware.o cx18-gpio.o \
 	cx18-queue.o cx18-streams.o cx18-fileops.o cx18-ioctl.o cx18-controls.o \
 	cx18-mailbox.o cx18-vbi.o cx18-audio.o cx18-video.o cx18-irq.o \
diff --git a/drivers/media/pci/cx23885/Makefile b/drivers/media/pci/cx23885/Makefile
index a2cbdcf15a8c..b8bf7806124b 100644
--- a/drivers/media/pci/cx23885/Makefile
+++ b/drivers/media/pci/cx23885/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cx23885-objs	:= cx23885-cards.o cx23885-video.o cx23885-vbi.o \
 		    cx23885-core.o cx23885-i2c.o cx23885-dvb.o cx23885-417.o \
 		    cx23885-ioctl.o cx23885-ir.o cx23885-av.o cx23885-input.o \
diff --git a/drivers/media/pci/cx23885/cx23885-f300.h b/drivers/media/pci/cx23885/cx23885-f300.h
index be14d7de7cd8..34aef3610aa9 100644
--- a/drivers/media/pci/cx23885/cx23885-f300.h
+++ b/drivers/media/pci/cx23885/cx23885-f300.h
@@ -1,2 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 extern int f300_set_voltage(struct dvb_frontend *fe,
 			    enum fe_sec_voltage voltage);
diff --git a/drivers/media/pci/cx25821/Makefile b/drivers/media/pci/cx25821/Makefile
index c8f8598a2b86..d14d65b1b042 100644
--- a/drivers/media/pci/cx25821/Makefile
+++ b/drivers/media/pci/cx25821/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cx25821-y   := cx25821-core.o cx25821-cards.o cx25821-i2c.o \
 		       cx25821-gpio.o cx25821-medusa-video.o \
 		       cx25821-video.o
diff --git a/drivers/media/pci/cx25821/cx25821-audio-upstream.c b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
index b94eb1c0023d..ada26d4acfb4 100644
--- a/drivers/media/pci/cx25821/cx25821-audio-upstream.c
+++ b/drivers/media/pci/cx25821/cx25821-audio-upstream.c
@@ -277,7 +277,7 @@ static int cx25821_get_audio_data(struct cx25821_dev *dev,
 		p = (char *)dev->_audiodata_buf_virt_addr + frame_offset;
 
 	for (i = 0; i < dev->_audio_lines_count; i++) {
-		int n = kernel_read(file, file_offset, mybuf, AUDIO_LINE_SIZE);
+		int n = kernel_read(file, mybuf, AUDIO_LINE_SIZE, &file_offset);
 		if (n < AUDIO_LINE_SIZE) {
 			pr_info("Done: exit %s() since no more bytes to read from Audio file\n",
 				__func__);
@@ -290,7 +290,6 @@ static int cx25821_get_audio_data(struct cx25821_dev *dev,
 			memcpy(p, mybuf, n);
 			p += n;
 		}
-		file_offset += n;
 	}
 	dev->_audioframe_count++;
 	fput(file);
@@ -318,7 +317,7 @@ static int cx25821_openfile_audio(struct cx25821_dev *dev,
 {
 	char *p = (void *)dev->_audiodata_buf_virt_addr;
 	struct file *file;
-	loff_t offset;
+	loff_t file_offset = 0;
 	int i, j;
 
 	file = filp_open(dev->_audiofilename, O_RDONLY | O_LARGEFILE, 0);
@@ -328,11 +327,11 @@ static int cx25821_openfile_audio(struct cx25821_dev *dev,
 		return PTR_ERR(file);
 	}
 
-	for (j = 0, offset = 0; j < NUM_AUDIO_FRAMES; j++) {
+	for (j = 0; j < NUM_AUDIO_FRAMES; j++) {
 		for (i = 0; i < dev->_audio_lines_count; i++) {
 			char buf[AUDIO_LINE_SIZE];
-			int n = kernel_read(file, offset, buf,
-						AUDIO_LINE_SIZE);
+			loff_t offset = file_offset;
+			int n = kernel_read(file, buf, AUDIO_LINE_SIZE, &file_offset);
 
 			if (n < AUDIO_LINE_SIZE) {
 				pr_info("Done: exit %s() since no more bytes to read from Audio file\n",
@@ -344,8 +343,6 @@ static int cx25821_openfile_audio(struct cx25821_dev *dev,
 
 			if (p)
 				memcpy(p + offset, buf, n);
-
-			offset += n;
 		}
 		dev->_audioframe_count++;
 	}
diff --git a/drivers/media/pci/cx88/Makefile b/drivers/media/pci/cx88/Makefile
index d3679c3ee248..86646eee4e6b 100644
--- a/drivers/media/pci/cx88/Makefile
+++ b/drivers/media/pci/cx88/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cx88xx-objs	:= cx88-cards.o cx88-core.o cx88-i2c.o cx88-tvaudio.o \
 		   cx88-dsp.o cx88-input.o
 cx8800-objs	:= cx88-video.o cx88-vbi.o
diff --git a/drivers/media/pci/cx88/cx88-vbi.c b/drivers/media/pci/cx88/cx88-vbi.c
index 2d0ef19e6d65..c637679b01b2 100644
--- a/drivers/media/pci/cx88/cx88-vbi.c
+++ b/drivers/media/pci/cx88/cx88-vbi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  */
 
diff --git a/drivers/media/pci/ddbridge/Makefile b/drivers/media/pci/ddbridge/Makefile
index 09703312a3f1..7453b65104ff 100644
--- a/drivers/media/pci/ddbridge/Makefile
+++ b/drivers/media/pci/ddbridge/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ddbridge device driver
 #
diff --git a/drivers/media/pci/ivtv/Makefile b/drivers/media/pci/ivtv/Makefile
index 0eaa88298b7e..48f8a23f9a0f 100644
--- a/drivers/media/pci/ivtv/Makefile
+++ b/drivers/media/pci/ivtv/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ivtv-objs	:= ivtv-routing.o ivtv-cards.o ivtv-controls.o \
 		   ivtv-driver.o ivtv-fileops.o ivtv-firmware.o \
 		   ivtv-gpio.o ivtv-i2c.o ivtv-ioctl.o ivtv-irq.o \
diff --git a/drivers/media/pci/mantis/Makefile b/drivers/media/pci/mantis/Makefile
index f715051e4453..a684dc2ec79e 100644
--- a/drivers/media/pci/mantis/Makefile
+++ b/drivers/media/pci/mantis/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 mantis_core-objs :=	mantis_ioc.o	\
 			mantis_uart.o	\
 			mantis_dma.o	\
diff --git a/drivers/media/pci/netup_unidvb/Makefile b/drivers/media/pci/netup_unidvb/Makefile
index ee6ae0501eae..07d3f1eb728b 100644
--- a/drivers/media/pci/netup_unidvb/Makefile
+++ b/drivers/media/pci/netup_unidvb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 netup-unidvb-objs += netup_unidvb_core.o
 netup-unidvb-objs += netup_unidvb_i2c.o
 netup-unidvb-objs += netup_unidvb_ci.o
diff --git a/drivers/media/pci/ngene/Makefile b/drivers/media/pci/ngene/Makefile
index 5c0b5d6b9d69..dbdf284970f8 100644
--- a/drivers/media/pci/ngene/Makefile
+++ b/drivers/media/pci/ngene/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the nGene device driver
 #
diff --git a/drivers/media/pci/pt3/Makefile b/drivers/media/pci/pt3/Makefile
index 396f146b1c18..aded8752ac2b 100644
--- a/drivers/media/pci/pt3/Makefile
+++ b/drivers/media/pci/pt3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 earth-pt3-objs += pt3.o pt3_i2c.o pt3_dma.o
 
diff --git a/drivers/media/pci/saa7134/Makefile b/drivers/media/pci/saa7134/Makefile
index 09c43da67588..dbaadddf4320 100644
--- a/drivers/media/pci/saa7134/Makefile
+++ b/drivers/media/pci/saa7134/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 saa7134-y +=	saa7134-cards.o saa7134-core.o saa7134-i2c.o
 saa7134-y +=	saa7134-ts.o saa7134-tvaudio.o saa7134-vbi.o
diff --git a/drivers/media/pci/saa7134/saa7134-reg.h b/drivers/media/pci/saa7134/saa7134-reg.h
index b6ea6f4f9b6c..56b12641d733 100644
--- a/drivers/media/pci/saa7134/saa7134-reg.h
+++ b/drivers/media/pci/saa7134/saa7134-reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * philips saa7134 registers
diff --git a/drivers/media/pci/saa7164/Makefile b/drivers/media/pci/saa7164/Makefile
index ba0e33a1ee24..3896bcdb99d2 100644
--- a/drivers/media/pci/saa7164/Makefile
+++ b/drivers/media/pci/saa7164/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 saa7164-objs	:= saa7164-cards.o saa7164-core.o saa7164-i2c.o saa7164-dvb.o \
 			saa7164-fw.o saa7164-bus.o saa7164-cmd.o saa7164-api.o \
 			saa7164-buffer.o saa7164-encoder.o saa7164-vbi.o
diff --git a/drivers/media/pci/smipcie/Makefile b/drivers/media/pci/smipcie/Makefile
index 013bc3fe4294..6006aac3c41f 100644
--- a/drivers/media/pci/smipcie/Makefile
+++ b/drivers/media/pci/smipcie/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 smipcie-objs	:= smipcie-main.o smipcie-ir.o
 
diff --git a/drivers/media/pci/ttpci/Makefile b/drivers/media/pci/ttpci/Makefile
index 3cf617737f7c..0b805339c123 100644
--- a/drivers/media/pci/ttpci/Makefile
+++ b/drivers/media/pci/ttpci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel SAA7146 FULL TS DVB device driver
 # and the AV7110 DVB device driver
diff --git a/drivers/media/pci/ttpci/av7110.h b/drivers/media/pci/ttpci/av7110.h
index 347827925c14..cd09fd6e6548 100644
--- a/drivers/media/pci/ttpci/av7110.h
+++ b/drivers/media/pci/ttpci/av7110.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AV7110_H_
 #define _AV7110_H_
 
diff --git a/drivers/media/pci/ttpci/av7110_av.h b/drivers/media/pci/ttpci/av7110_av.h
index f52276f47709..71bbd4391f57 100644
--- a/drivers/media/pci/ttpci/av7110_av.h
+++ b/drivers/media/pci/ttpci/av7110_av.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AV7110_AV_H_
 #define _AV7110_AV_H_
 
diff --git a/drivers/media/pci/ttpci/av7110_ca.h b/drivers/media/pci/ttpci/av7110_ca.h
index 70ee855ece1b..a6e3f2955730 100644
--- a/drivers/media/pci/ttpci/av7110_ca.h
+++ b/drivers/media/pci/ttpci/av7110_ca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AV7110_CA_H_
 #define _AV7110_CA_H_
 
diff --git a/drivers/media/pci/ttpci/av7110_hw.h b/drivers/media/pci/ttpci/av7110_hw.h
index ccb148059406..6380d8950c69 100644
--- a/drivers/media/pci/ttpci/av7110_hw.h
+++ b/drivers/media/pci/ttpci/av7110_hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AV7110_HW_H_
 #define _AV7110_HW_H_
 
diff --git a/drivers/media/pci/ttpci/av7110_ipack.c b/drivers/media/pci/ttpci/av7110_ipack.c
index 699ef8b5b99a..5aff26574fe1 100644
--- a/drivers/media/pci/ttpci/av7110_ipack.c
+++ b/drivers/media/pci/ttpci/av7110_ipack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "dvb_filter.h"
 #include "av7110_ipack.h"
 #include <linux/string.h>	/* for memcpy() */
diff --git a/drivers/media/pci/ttpci/av7110_ipack.h b/drivers/media/pci/ttpci/av7110_ipack.h
index becf94d3fdfa..943ec899bb93 100644
--- a/drivers/media/pci/ttpci/av7110_ipack.h
+++ b/drivers/media/pci/ttpci/av7110_ipack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AV7110_IPACK_H_
 #define _AV7110_IPACK_H_
 
diff --git a/drivers/media/pci/ttpci/budget.h b/drivers/media/pci/ttpci/budget.h
index d5ae4438153e..fae83866b199 100644
--- a/drivers/media/pci/ttpci/budget.h
+++ b/drivers/media/pci/ttpci/budget.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __BUDGET_DVB__
 #define __BUDGET_DVB__
diff --git a/drivers/media/pci/ttpci/dvb_filter.c b/drivers/media/pci/ttpci/dvb_filter.c
index b67127b67d4e..8c2eca5dcdc9 100644
--- a/drivers/media/pci/ttpci/dvb_filter.c
+++ b/drivers/media/pci/ttpci/dvb_filter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/string.h>
diff --git a/drivers/media/pci/tw5864/tw5864-util.c b/drivers/media/pci/tw5864/tw5864-util.c
index 771eef235755..b9cebe9d1740 100644
--- a/drivers/media/pci/tw5864/tw5864-util.c
+++ b/drivers/media/pci/tw5864/tw5864-util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tw5864.h"
 
 void tw5864_indir_writeb(struct tw5864_dev *dev, u16 addr, u8 data)
diff --git a/drivers/media/pci/tw686x/tw686x-regs.h b/drivers/media/pci/tw686x/tw686x-regs.h
index 15a956642ef4..8adacc928be1 100644
--- a/drivers/media/pci/tw686x/tw686x-regs.h
+++ b/drivers/media/pci/tw686x/tw686x-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* DMA controller registers */
 #define REG8_1(a0) ((const u16[8]) { a0, a0 + 1, a0 + 2, a0 + 3, \
 				     a0 + 4, a0 + 5, a0 + 6, a0 + 7})
diff --git a/drivers/media/pci/zoran/Makefile b/drivers/media/pci/zoran/Makefile
index 44cc13352c88..21ac29a71458 100644
--- a/drivers/media/pci/zoran/Makefile
+++ b/drivers/media/pci/zoran/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 zr36067-objs	:=	zoran_procfs.o zoran_device.o \
 			zoran_driver.o zoran_card.o
 
diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 7e7cc49b8674..3c4f7fa7b9d8 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -112,7 +112,7 @@ config VIDEO_PXA27x
 
 config VIDEO_QCOM_CAMSS
 	tristate "Qualcomm 8x16 V4L2 Camera Subsystem driver"
-	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
 	depends on (ARCH_QCOM && IOMMU_DMA) || COMPILE_TEST
 	select VIDEOBUF2_DMA_SG
 	select V4L2_FWNODE
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index c1ef946bf032..327f80a6f82c 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the video capture/playback device drivers.
 #
diff --git a/drivers/media/platform/atmel/atmel-isc-regs.h b/drivers/media/platform/atmel/atmel-isc-regs.h
index 6936ac467609..e6cef966dcbf 100644
--- a/drivers/media/platform/atmel/atmel-isc-regs.h
+++ b/drivers/media/platform/atmel/atmel-isc-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATMEL_ISC_REGS_H
 #define __ATMEL_ISC_REGS_H
 
diff --git a/drivers/media/platform/coda/trace.h b/drivers/media/platform/coda/trace.h
index f20666a4aa89..ca671e315ad0 100644
--- a/drivers/media/platform/coda/trace.h
+++ b/drivers/media/platform/coda/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM coda
 
diff --git a/drivers/media/platform/davinci/Makefile b/drivers/media/platform/davinci/Makefile
index d74d9eeb0e9e..05c45bf371aa 100644
--- a/drivers/media/platform/davinci/Makefile
+++ b/drivers/media/platform/davinci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the davinci video device drivers.
 #
diff --git a/drivers/media/platform/exynos4-is/Makefile b/drivers/media/platform/exynos4-is/Makefile
index eed1b185d813..a5ab01c73b95 100644
--- a/drivers/media/platform/exynos4-is/Makefile
+++ b/drivers/media/platform/exynos4-is/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 s5p-fimc-objs := fimc-core.o fimc-reg.o fimc-m2m.o fimc-capture.o media-dev.o
 exynos-fimc-lite-objs += fimc-lite-reg.o fimc-lite.o
 s5p-csis-objs := mipi-csis.o
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index b07a251e8857..7b7250b1cff8 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * The Marvell camera core.  This device appears in a number of settings,
  * so it needs platform-specific support outside of the core.
diff --git a/drivers/media/platform/marvell-ccic/mcam-core.h b/drivers/media/platform/marvell-ccic/mcam-core.h
index beb339f5561f..ad8955f9f0a1 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.h
+++ b/drivers/media/platform/marvell-ccic/mcam-core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Marvell camera core structures.
  *
diff --git a/drivers/media/platform/mtk-mdp/Makefile b/drivers/media/platform/mtk-mdp/Makefile
index f8025699af99..5982d65c9971 100644
--- a/drivers/media/platform/mtk-mdp/Makefile
+++ b/drivers/media/platform/mtk-mdp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 mtk-mdp-y += mtk_mdp_core.o
 mtk-mdp-y += mtk_mdp_comp.o
 mtk-mdp-y += mtk_mdp_m2m.o
diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile
index 852d9697ccfa..37b94b555fa1 100644
--- a/drivers/media/platform/mtk-vcodec/Makefile
+++ b/drivers/media/platform/mtk-vcodec/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dec.o \
 				       mtk-vcodec-enc.o \
diff --git a/drivers/media/platform/omap3isp/Makefile b/drivers/media/platform/omap3isp/Makefile
index 254975a9174e..56e99b4f7d23 100644
--- a/drivers/media/platform/omap3isp/Makefile
+++ b/drivers/media/platform/omap3isp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for OMAP3 ISP driver
 
 ccflags-$(CONFIG_VIDEO_OMAP3_DEBUG) += -DDEBUG
diff --git a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c
index b21b3c2dc77f..b22d2dfcd3c2 100644
--- a/drivers/media/platform/qcom/camss-8x16/camss-vfe.c
+++ b/drivers/media/platform/qcom/camss-8x16/camss-vfe.c
@@ -2660,7 +2660,7 @@ static int vfe_get_selection(struct v4l2_subdev *sd,
  *
  * Return -EINVAL or zero on success
  */
-int vfe_set_selection(struct v4l2_subdev *sd,
+static int vfe_set_selection(struct v4l2_subdev *sd,
 			     struct v4l2_subdev_pad_config *cfg,
 			     struct v4l2_subdev_selection *sel)
 {
diff --git a/drivers/media/platform/qcom/venus/Makefile b/drivers/media/platform/qcom/venus/Makefile
index 0fe9afb83697..bfd4edf7c83f 100644
--- a/drivers/media/platform/qcom/venus/Makefile
+++ b/drivers/media/platform/qcom/venus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for Qualcomm Venus driver
 
 venus-core-objs += core.o helpers.o firmware.o \
diff --git a/drivers/media/platform/qcom/venus/helpers.c b/drivers/media/platform/qcom/venus/helpers.c
index 68933d208063..9b2a401a4891 100644
--- a/drivers/media/platform/qcom/venus/helpers.c
+++ b/drivers/media/platform/qcom/venus/helpers.c
@@ -682,6 +682,7 @@ void venus_helper_vb2_stop_streaming(struct vb2_queue *q)
 			hfi_session_abort(inst);
 
 		load_scale_clocks(core);
+		INIT_LIST_HEAD(&inst->registeredbufs);
 	}
 
 	venus_helper_buffers_done(inst, VB2_BUF_STATE_ERROR);
diff --git a/drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c b/drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c
index 1edf667d562a..146ae6f25cdb 100644
--- a/drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c
+++ b/drivers/media/platform/s5p-cec/exynos_hdmi_cecctrl.c
@@ -172,7 +172,8 @@ u32 s5p_cec_get_status(struct s5p_cec_dev *cec)
 {
 	u32 status = 0;
 
-	status = readb(cec->reg + S5P_CEC_STATUS_0);
+	status = readb(cec->reg + S5P_CEC_STATUS_0) & 0xf;
+	status |= (readb(cec->reg + S5P_CEC_TX_STAT1) & 0xf) << 4;
 	status |= readb(cec->reg + S5P_CEC_STATUS_1) << 8;
 	status |= readb(cec->reg + S5P_CEC_STATUS_2) << 16;
 	status |= readb(cec->reg + S5P_CEC_STATUS_3) << 24;
diff --git a/drivers/media/platform/s5p-cec/s5p_cec.c b/drivers/media/platform/s5p-cec/s5p_cec.c
index 58d200e7c838..8837e2678bde 100644
--- a/drivers/media/platform/s5p-cec/s5p_cec.c
+++ b/drivers/media/platform/s5p-cec/s5p_cec.c
@@ -92,7 +92,10 @@ static irqreturn_t s5p_cec_irq_handler(int irq, void *priv)
 	dev_dbg(cec->dev, "irq received\n");
 
 	if (status & CEC_STATUS_TX_DONE) {
-		if (status & CEC_STATUS_TX_ERROR) {
+		if (status & CEC_STATUS_TX_NACK) {
+			dev_dbg(cec->dev, "CEC_STATUS_TX_NACK set\n");
+			cec->tx = STATE_NACK;
+		} else if (status & CEC_STATUS_TX_ERROR) {
 			dev_dbg(cec->dev, "CEC_STATUS_TX_ERROR set\n");
 			cec->tx = STATE_ERROR;
 		} else {
@@ -135,6 +138,12 @@ static irqreturn_t s5p_cec_irq_handler_thread(int irq, void *priv)
 		cec_transmit_done(cec->adap, CEC_TX_STATUS_OK, 0, 0, 0, 0);
 		cec->tx = STATE_IDLE;
 		break;
+	case STATE_NACK:
+		cec_transmit_done(cec->adap,
+			CEC_TX_STATUS_MAX_RETRIES | CEC_TX_STATUS_NACK,
+			0, 1, 0, 0);
+		cec->tx = STATE_IDLE;
+		break;
 	case STATE_ERROR:
 		cec_transmit_done(cec->adap,
 			CEC_TX_STATUS_MAX_RETRIES | CEC_TX_STATUS_ERROR,
diff --git a/drivers/media/platform/s5p-cec/s5p_cec.h b/drivers/media/platform/s5p-cec/s5p_cec.h
index 8bcd8dc1aeb9..86ded522ef27 100644
--- a/drivers/media/platform/s5p-cec/s5p_cec.h
+++ b/drivers/media/platform/s5p-cec/s5p_cec.h
@@ -35,6 +35,7 @@
 #define CEC_STATUS_TX_TRANSFERRING	(1 << 1)
 #define CEC_STATUS_TX_DONE		(1 << 2)
 #define CEC_STATUS_TX_ERROR		(1 << 3)
+#define CEC_STATUS_TX_NACK		(1 << 4)
 #define CEC_STATUS_TX_BYTES		(0xFF << 8)
 #define CEC_STATUS_RX_RUNNING		(1 << 16)
 #define CEC_STATUS_RX_RECEIVING		(1 << 17)
@@ -55,6 +56,7 @@ enum cec_state {
 	STATE_IDLE,
 	STATE_BUSY,
 	STATE_DONE,
+	STATE_NACK,
 	STATE_ERROR
 };
 
diff --git a/drivers/media/platform/s5p-mfc/Makefile b/drivers/media/platform/s5p-mfc/Makefile
index 15f59b324fef..0b324af2ab00 100644
--- a/drivers/media/platform/s5p-mfc/Makefile
+++ b/drivers/media/platform/s5p-mfc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIDEO_SAMSUNG_S5P_MFC) += s5p-mfc.o
 s5p-mfc-y += s5p_mfc.o s5p_mfc_intr.o
 s5p-mfc-y += s5p_mfc_dec.o s5p_mfc_enc.o
diff --git a/drivers/media/platform/sti/c8sectpfe/Makefile b/drivers/media/platform/sti/c8sectpfe/Makefile
index b578c7cb4c34..b642b4fd5045 100644
--- a/drivers/media/platform/sti/c8sectpfe/Makefile
+++ b/drivers/media/platform/sti/c8sectpfe/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 c8sectpfe-y += c8sectpfe-core.o c8sectpfe-common.o c8sectpfe-dvb.o \
 		c8sectpfe-debugfs.o
 
diff --git a/drivers/media/platform/ti-vpe/Makefile b/drivers/media/platform/ti-vpe/Makefile
index 32504b724b5d..886ac5ec073f 100644
--- a/drivers/media/platform/ti-vpe/Makefile
+++ b/drivers/media/platform/ti-vpe/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIDEO_TI_VPE) += ti-vpe.o
 obj-$(CONFIG_VIDEO_TI_VPDMA) += ti-vpdma.o
 obj-$(CONFIG_VIDEO_TI_SC) += ti-sc.o
diff --git a/drivers/media/platform/via-camera.h b/drivers/media/platform/via-camera.h
index b12a4b3d616f..2d67f8ce258d 100644
--- a/drivers/media/platform/via-camera.h
+++ b/drivers/media/platform/via-camera.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * VIA Camera register definitions.
  */
diff --git a/drivers/media/platform/vimc/Makefile b/drivers/media/platform/vimc/Makefile
index 68c5d9804c11..4b2e3de7856e 100644
--- a/drivers/media/platform/vimc/Makefile
+++ b/drivers/media/platform/vimc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vimc-objs := vimc-core.o
 vimc_capture-objs := vimc-capture.o
 vimc_common-objs := vimc-common.o
diff --git a/drivers/media/platform/vivid/Makefile b/drivers/media/platform/vivid/Makefile
index 29738810e3ee..2f5762e3309a 100644
--- a/drivers/media/platform/vivid/Makefile
+++ b/drivers/media/platform/vivid/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vivid-objs := vivid-core.o vivid-ctrls.o vivid-vid-common.o vivid-vbi-gen.o \
 		vivid-vid-cap.o vivid-vid-out.o vivid-kthread-cap.o vivid-kthread-out.o \
 		vivid-radio-rx.o vivid-radio-tx.o vivid-radio-common.o \
diff --git a/drivers/media/platform/vsp1/Makefile b/drivers/media/platform/vsp1/Makefile
index a33afc385a48..f5cd6f0491cb 100644
--- a/drivers/media/platform/vsp1/Makefile
+++ b/drivers/media/platform/vsp1/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vsp1-y					:= vsp1_drv.o vsp1_entity.o vsp1_pipe.o
 vsp1-y					+= vsp1_dl.o vsp1_drm.o vsp1_video.o
 vsp1-y					+= vsp1_rpf.o vsp1_rwpf.o vsp1_wpf.o
diff --git a/drivers/media/radio/Makefile b/drivers/media/radio/Makefile
index 120e791199b2..37e6e8255b57 100644
--- a/drivers/media/radio/Makefile
+++ b/drivers/media/radio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel character device drivers.
 #
diff --git a/drivers/media/radio/lm7000.h b/drivers/media/radio/lm7000.h
index 139cd6b68824..adb217965620 100644
--- a/drivers/media/radio/lm7000.h
+++ b/drivers/media/radio/lm7000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LM7000_H
 #define __LM7000_H
 
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index 9bc6a3980ed0..ab3d5a135453 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rc-core-objs	:= rc-main.o rc-ir-raw.o
 
 obj-y += keymaps/
diff --git a/drivers/media/rc/img-ir/Makefile b/drivers/media/rc/img-ir/Makefile
index 8e6d458e66ad..741fedc5dceb 100644
--- a/drivers/media/rc/img-ir/Makefile
+++ b/drivers/media/rc/img-ir/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 img-ir-y			:= img-ir-core.o
 img-ir-$(CONFIG_IR_IMG_RAW)	+= img-ir-raw.o
 img-ir-$(CONFIG_IR_IMG_HW)	+= img-ir-hw.o
diff --git a/drivers/media/rc/ir-sharp-decoder.c b/drivers/media/rc/ir-sharp-decoder.c
index ed43a4212479..129b558acc92 100644
--- a/drivers/media/rc/ir-sharp-decoder.c
+++ b/drivers/media/rc/ir-sharp-decoder.c
@@ -245,5 +245,5 @@ module_init(ir_sharp_decode_init);
 module_exit(ir_sharp_decode_exit);
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("James Hogan <james.hogan@imgtec.com>");
+MODULE_AUTHOR("James Hogan <jhogan@kernel.org>");
 MODULE_DESCRIPTION("Sharp IR protocol decoder");
diff --git a/drivers/media/rc/keymaps/Makefile b/drivers/media/rc/keymaps/Makefile
index af6496d709fb..2d0b26bf2051 100644
--- a/drivers/media/rc/keymaps/Makefile
+++ b/drivers/media/rc/keymaps/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RC_MAP) += rc-adstech-dvb-t-pci.o \
 			rc-alink-dtu-m.o \
 			rc-anysee.o \
diff --git a/drivers/media/tuners/Makefile b/drivers/media/tuners/Makefile
index 06a9ab65e5fa..7be96511532d 100644
--- a/drivers/media/tuners/Makefile
+++ b/drivers/media/tuners/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for common V4L/DVB tuners
 #
diff --git a/drivers/media/tuners/fc0011.h b/drivers/media/tuners/fc0011.h
index 438cf897acd1..a36871c44c8c 100644
--- a/drivers/media/tuners/fc0011.h
+++ b/drivers/media/tuners/fc0011.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_FC0011_H_
 #define LINUX_FC0011_H_
 
diff --git a/drivers/media/tuners/mt2060.c b/drivers/media/tuners/mt2060.c
index 2e487f9a2cc3..4983eeb39f36 100644
--- a/drivers/media/tuners/mt2060.c
+++ b/drivers/media/tuners/mt2060.c
@@ -38,41 +38,74 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
 static int mt2060_readreg(struct mt2060_priv *priv, u8 reg, u8 *val)
 {
 	struct i2c_msg msg[2] = {
-		{ .addr = priv->cfg->i2c_address, .flags = 0,        .buf = &reg, .len = 1 },
-		{ .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .buf = val,  .len = 1 },
+		{ .addr = priv->cfg->i2c_address, .flags = 0, .len = 1 },
+		{ .addr = priv->cfg->i2c_address, .flags = I2C_M_RD, .len = 1 },
 	};
+	int rc = 0;
+	u8 *b;
+
+	b = kmalloc(2, GFP_KERNEL);
+	if (!b)
+		return -ENOMEM;
+
+	b[0] = reg;
+	b[1] = 0;
+
+	msg[0].buf = b;
+	msg[1].buf = b + 1;
 
 	if (i2c_transfer(priv->i2c, msg, 2) != 2) {
 		printk(KERN_WARNING "mt2060 I2C read failed\n");
-		return -EREMOTEIO;
+		rc = -EREMOTEIO;
 	}
-	return 0;
+	*val = b[1];
+	kfree(b);
+
+	return rc;
 }
 
 // Writes a single register
 static int mt2060_writereg(struct mt2060_priv *priv, u8 reg, u8 val)
 {
-	u8 buf[2] = { reg, val };
 	struct i2c_msg msg = {
-		.addr = priv->cfg->i2c_address, .flags = 0, .buf = buf, .len = 2
+		.addr = priv->cfg->i2c_address, .flags = 0, .len = 2
 	};
+	u8 *buf;
+	int rc = 0;
+
+	buf = kmalloc(2, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	buf[0] = reg;
+	buf[1] = val;
+
+	msg.buf = buf;
 
 	if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
 		printk(KERN_WARNING "mt2060 I2C write failed\n");
-		return -EREMOTEIO;
+		rc = -EREMOTEIO;
 	}
-	return 0;
+	kfree(buf);
+	return rc;
 }
 
 // Writes a set of consecutive registers
 static int mt2060_writeregs(struct mt2060_priv *priv,u8 *buf, u8 len)
 {
 	int rem, val_len;
-	u8 xfer_buf[16];
+	u8 *xfer_buf;
+	int rc = 0;
 	struct i2c_msg msg = {
-		.addr = priv->cfg->i2c_address, .flags = 0, .buf = xfer_buf
+		.addr = priv->cfg->i2c_address, .flags = 0
 	};
 
+	xfer_buf = kmalloc(16, GFP_KERNEL);
+	if (!xfer_buf)
+		return -ENOMEM;
+
+	msg.buf = xfer_buf;
+
 	for (rem = len - 1; rem > 0; rem -= priv->i2c_max_regs) {
 		val_len = min_t(int, rem, priv->i2c_max_regs);
 		msg.len = 1 + val_len;
@@ -81,11 +114,13 @@ static int mt2060_writeregs(struct mt2060_priv *priv,u8 *buf, u8 len)
 
 		if (i2c_transfer(priv->i2c, &msg, 1) != 1) {
 			printk(KERN_WARNING "mt2060 I2C write failed (len=%i)\n", val_len);
-			return -EREMOTEIO;
+			rc = -EREMOTEIO;
+			break;
 		}
 	}
 
-	return 0;
+	kfree(xfer_buf);
+	return rc;
 }
 
 // Initialisation sequences
diff --git a/drivers/media/tuners/mt2063.h b/drivers/media/tuners/mt2063.h
index e55e0a6dd1be..0e3e3b0525bb 100644
--- a/drivers/media/tuners/mt2063.h
+++ b/drivers/media/tuners/mt2063.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MT2063_H__
 #define __MT2063_H__
 
diff --git a/drivers/media/usb/Makefile b/drivers/media/usb/Makefile
index 738b993ec8b0..21e46b10caa5 100644
--- a/drivers/media/usb/Makefile
+++ b/drivers/media/usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the USB media device drivers
 #
diff --git a/drivers/media/usb/as102/Makefile b/drivers/media/usb/as102/Makefile
index 22f43eee4a3b..56bd2d00b920 100644
--- a/drivers/media/usb/as102/Makefile
+++ b/drivers/media/usb/as102/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dvb-as102-objs := as102_drv.o as102_fw.o as10x_cmd.o as10x_cmd_stream.o \
 		  as102_usb_drv.o as10x_cmd_cfg.o
 
diff --git a/drivers/media/usb/au0828/Makefile b/drivers/media/usb/au0828/Makefile
index 3dc7539a5c4e..c06ef6601f2d 100644
--- a/drivers/media/usb/au0828/Makefile
+++ b/drivers/media/usb/au0828/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 au0828-objs	:= au0828-core.o au0828-i2c.o au0828-cards.o au0828-dvb.o
 
 ifeq ($(CONFIG_VIDEO_AU0828_V4L2),y)
diff --git a/drivers/media/usb/b2c2/flexcop-usb.h b/drivers/media/usb/b2c2/flexcop-usb.h
index 25ad43166e78..e86faa0e06ca 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.h
+++ b/drivers/media/usb/b2c2/flexcop-usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux driver for digital TV devices equipped with B2C2 FlexcopII(b)/III
  * flexcop-usb.h - header file for the USB part
diff --git a/drivers/media/usb/cx231xx/Makefile b/drivers/media/usb/cx231xx/Makefile
index 52cf76935e69..19e8c35d6a77 100644
--- a/drivers/media/usb/cx231xx/Makefile
+++ b/drivers/media/usb/cx231xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cx231xx-y += cx231xx-video.o cx231xx-i2c.o cx231xx-cards.o cx231xx-core.o
 cx231xx-y += cx231xx-avcore.o cx231xx-417.o cx231xx-pcb-cfg.o cx231xx-vbi.o
 cx231xx-$(CONFIG_VIDEO_CX231XX_RC) += cx231xx-input.o
diff --git a/drivers/media/usb/dvb-usb-v2/Makefile b/drivers/media/usb/dvb-usb-v2/Makefile
index 969f68e55265..bed44601f324 100644
--- a/drivers/media/usb/dvb-usb-v2/Makefile
+++ b/drivers/media/usb/dvb-usb-v2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dvb_usb_v2-objs := dvb_usb_core.o dvb_usb_urb.o usb_urb.o
 obj-$(CONFIG_DVB_USB_V2) += dvb_usb_v2.o
 
diff --git a/drivers/media/usb/dvb-usb-v2/gl861.h b/drivers/media/usb/dvb-usb-v2/gl861.h
index b0b80d87bb7e..b651b857e034 100644
--- a/drivers/media/usb/dvb-usb-v2/gl861.h
+++ b/drivers/media/usb/dvb-usb-v2/gl861.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DVB_USB_GL861_H_
 #define _DVB_USB_GL861_H_
 
diff --git a/drivers/media/usb/dvb-usb-v2/usb_urb.c b/drivers/media/usb/dvb-usb-v2/usb_urb.c
index 55136cde38f5..dce2b97efce4 100644
--- a/drivers/media/usb/dvb-usb-v2/usb_urb.c
+++ b/drivers/media/usb/dvb-usb-v2/usb_urb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* usb-urb.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/Makefile b/drivers/media/usb/dvb-usb/Makefile
index 3b3f32b426d1..16de1e4f36a4 100644
--- a/drivers/media/usb/dvb-usb/Makefile
+++ b/drivers/media/usb/dvb-usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 dvb-usb-objs += dvb-usb-firmware.o dvb-usb-init.o dvb-usb-urb.o dvb-usb-i2c.o
 dvb-usb-objs += dvb-usb-dvb.o dvb-usb-remote.o usb-urb.o
 obj-$(CONFIG_DVB_USB) += dvb-usb.o
diff --git a/drivers/media/usb/dvb-usb/af9005-script.h b/drivers/media/usb/dvb-usb/af9005-script.h
index 4d69045426dd..870cb59cd904 100644
--- a/drivers/media/usb/dvb-usb/af9005-script.h
+++ b/drivers/media/usb/dvb-usb/af9005-script.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 File automatically generated by createinit.py using data
 extracted from AF05BDA.sys (windows driver):
diff --git a/drivers/media/usb/dvb-usb/az6027.h b/drivers/media/usb/dvb-usb/az6027.h
index f3afe17f3f3d..95b056b36030 100644
--- a/drivers/media/usb/dvb-usb/az6027.h
+++ b/drivers/media/usb/dvb-usb/az6027.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DVB_USB_VP6027_H_
 #define _DVB_USB_VP6027_H_
 
diff --git a/drivers/media/usb/dvb-usb/cxusb.h b/drivers/media/usb/dvb-usb/cxusb.h
index 66429d7f69b5..88f9b9804b25 100644
--- a/drivers/media/usb/dvb-usb/cxusb.h
+++ b/drivers/media/usb/dvb-usb/cxusb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DVB_USB_CXUSB_H_
 #define _DVB_USB_CXUSB_H_
 
diff --git a/drivers/media/usb/dvb-usb/dib07x0.h b/drivers/media/usb/dvb-usb/dib07x0.h
index 7e62c1018520..2e67f794fe37 100644
--- a/drivers/media/usb/dvb-usb/dib07x0.h
+++ b/drivers/media/usb/dvb-usb/dib07x0.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DIB07X0_H_
 #define _DIB07X0_H_
 
diff --git a/drivers/media/usb/dvb-usb/digitv.h b/drivers/media/usb/dvb-usb/digitv.h
index 581e09c25491..2af9fedfad70 100644
--- a/drivers/media/usb/dvb-usb/digitv.h
+++ b/drivers/media/usb/dvb-usb/digitv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DVB_USB_DIGITV_H_
 #define _DVB_USB_DIGITV_H_
 
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-common.h b/drivers/media/usb/dvb-usb/dvb-usb-common.h
index 7e619d638809..8c51ac4493dd 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-common.h
+++ b/drivers/media/usb/dvb-usb/dvb-usb-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* dvb-usb-common.h is part of the DVB USB library.
  *
  * Copyright (C) 2004-5 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-dvb.c b/drivers/media/usb/dvb-usb/dvb-usb-dvb.c
index e5675da286cb..3a66e732e0d8 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-dvb.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-dvb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* dvb-usb-dvb.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
index 04033efe7ad5..15c153e49382 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-firmware.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* dvb-usb-firmware.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-i2c.c b/drivers/media/usb/dvb-usb/dvb-usb-i2c.c
index 4f0b0adce7f5..ca0b734e009b 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-i2c.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* dvb-usb-i2c.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-remote.c b/drivers/media/usb/dvb-usb/dvb-usb-remote.c
index 0b03f9bd9c26..701c10835482 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-remote.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-remote.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* dvb-usb-remote.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb-urb.c b/drivers/media/usb/dvb-usb/dvb-usb-urb.c
index 95f9097498cb..c1b4e94a37f8 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb-urb.c
+++ b/drivers/media/usb/dvb-usb/dvb-usb-urb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* dvb-usb-urb.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dvb-usb.h b/drivers/media/usb/dvb-usb/dvb-usb.h
index 72468fdffa18..6c7c4637530f 100644
--- a/drivers/media/usb/dvb-usb/dvb-usb.h
+++ b/drivers/media/usb/dvb-usb/dvb-usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* dvb-usb.h is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/dw2102.h b/drivers/media/usb/dvb-usb/dw2102.h
index 5cd0b0eb6ce1..f64cf79b7934 100644
--- a/drivers/media/usb/dvb-usb/dw2102.h
+++ b/drivers/media/usb/dvb-usb/dw2102.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DW2102_H_
 #define _DW2102_H_
 
diff --git a/drivers/media/usb/dvb-usb/m920x.h b/drivers/media/usb/dvb-usb/m920x.h
index 3c061518ffc1..bab3c6ac7084 100644
--- a/drivers/media/usb/dvb-usb/m920x.h
+++ b/drivers/media/usb/dvb-usb/m920x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DVB_USB_M920X_H_
 #define _DVB_USB_M920X_H_
 
diff --git a/drivers/media/usb/dvb-usb/usb-urb.c b/drivers/media/usb/dvb-usb/usb-urb.c
index 89173603be67..2804d2d0e83a 100644
--- a/drivers/media/usb/dvb-usb/usb-urb.c
+++ b/drivers/media/usb/dvb-usb/usb-urb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* usb-urb.c is part of the DVB USB library.
  *
  * Copyright (C) 2004-6 Patrick Boettcher (patrick.boettcher@posteo.de)
diff --git a/drivers/media/usb/dvb-usb/vp702x.h b/drivers/media/usb/dvb-usb/vp702x.h
index 20b90055e7ac..18ad7ced2045 100644
--- a/drivers/media/usb/dvb-usb/vp702x.h
+++ b/drivers/media/usb/dvb-usb/vp702x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DVB_USB_VP7021_H_
 #define _DVB_USB_VP7021_H_
 
diff --git a/drivers/media/usb/em28xx/Makefile b/drivers/media/usb/em28xx/Makefile
index 3f850d5063d0..86bfc35e2ed4 100644
--- a/drivers/media/usb/em28xx/Makefile
+++ b/drivers/media/usb/em28xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 em28xx-y +=	em28xx-core.o em28xx-i2c.o em28xx-cards.o em28xx-camera.o
 
 em28xx-v4l-objs := em28xx-video.o em28xx-vbi.o
diff --git a/drivers/media/usb/em28xx/em28xx-reg.h b/drivers/media/usb/em28xx/em28xx-reg.h
index 747525ca7ed5..9e5cdfb25a73 100644
--- a/drivers/media/usb/em28xx/em28xx-reg.h
+++ b/drivers/media/usb/em28xx/em28xx-reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define EM_GPIO_0  (1 << 0)
 #define EM_GPIO_1  (1 << 1)
 #define EM_GPIO_2  (1 << 2)
diff --git a/drivers/media/usb/go7007/Makefile b/drivers/media/usb/go7007/Makefile
index e99287c3b828..3d95bbc4192c 100644
--- a/drivers/media/usb/go7007/Makefile
+++ b/drivers/media/usb/go7007/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIDEO_GO7007) += go7007.o
 obj-$(CONFIG_VIDEO_GO7007_USB) += go7007-usb.o
 obj-$(CONFIG_VIDEO_GO7007_LOADER) += go7007-loader.o
diff --git a/drivers/media/usb/gspca/Makefile b/drivers/media/usb/gspca/Makefile
index 9f5ccecb9c8a..3e3ecbffdf9f 100644
--- a/drivers/media/usb/gspca/Makefile
+++ b/drivers/media/usb/gspca/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_GSPCA)          += gspca_main.o
 obj-$(CONFIG_USB_GSPCA_BENQ)     += gspca_benq.o
 obj-$(CONFIG_USB_GSPCA_CONEX)    += gspca_conex.o
diff --git a/drivers/media/usb/gspca/gl860/Makefile b/drivers/media/usb/gspca/gl860/Makefile
index cf6397415aad..7bcfa36f12ac 100644
--- a/drivers/media/usb/gspca/gl860/Makefile
+++ b/drivers/media/usb/gspca/gl860/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_GL860) += gspca_gl860.o
 
 gspca_gl860-objs := gl860.o \
diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h
index d39adf90303b..9e0cf711642b 100644
--- a/drivers/media/usb/gspca/gspca.h
+++ b/drivers/media/usb/gspca/gspca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GSPCAV2_H
 #define GSPCAV2_H
 
diff --git a/drivers/media/usb/gspca/m5602/Makefile b/drivers/media/usb/gspca/m5602/Makefile
index 8e1fb5a1d2a1..95c9db6dc59c 100644
--- a/drivers/media/usb/gspca/m5602/Makefile
+++ b/drivers/media/usb/gspca/m5602/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_M5602) += gspca_m5602.o
 
 gspca_m5602-objs := m5602_core.o \
diff --git a/drivers/media/usb/gspca/stv06xx/Makefile b/drivers/media/usb/gspca/stv06xx/Makefile
index 3a4b2f899049..c4d7206e0c92 100644
--- a/drivers/media/usb/gspca/stv06xx/Makefile
+++ b/drivers/media/usb/gspca/stv06xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_STV06XX) += gspca_stv06xx.o
 
 gspca_stv06xx-objs := stv06xx.o \
diff --git a/drivers/media/usb/pvrusb2/Makefile b/drivers/media/usb/pvrusb2/Makefile
index ad705547bdce..0d84064036b2 100644
--- a/drivers/media/usb/pvrusb2/Makefile
+++ b/drivers/media/usb/pvrusb2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-pvrusb2-sysfs-$(CONFIG_VIDEO_PVRUSB2_SYSFS) := pvrusb2-sysfs.o
 obj-pvrusb2-debugifc-$(CONFIG_VIDEO_PVRUSB2_DEBUGIFC) := pvrusb2-debugifc.o
 obj-pvrusb2-dvb-$(CONFIG_VIDEO_PVRUSB2_DVB) := pvrusb2-dvb.o
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-dvb.h b/drivers/media/usb/pvrusb2/pvrusb2-dvb.h
index 884ff916a352..b500c86d4178 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-dvb.h
+++ b/drivers/media/usb/pvrusb2/pvrusb2-dvb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PVRUSB2_DVB_H__
 #define __PVRUSB2_DVB_H__
 
diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index ad5b25b89699..8289ee482f49 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -330,10 +330,10 @@ static void pvr2_hdw_state_log_state(struct pvr2_hdw *);
 static int pvr2_hdw_cmd_usbstream(struct pvr2_hdw *hdw,int runFl);
 static int pvr2_hdw_commit_setup(struct pvr2_hdw *hdw);
 static int pvr2_hdw_get_eeprom_addr(struct pvr2_hdw *hdw);
-static void pvr2_hdw_quiescent_timeout(unsigned long);
-static void pvr2_hdw_decoder_stabilization_timeout(unsigned long);
-static void pvr2_hdw_encoder_wait_timeout(unsigned long);
-static void pvr2_hdw_encoder_run_timeout(unsigned long);
+static void pvr2_hdw_quiescent_timeout(struct timer_list *);
+static void pvr2_hdw_decoder_stabilization_timeout(struct timer_list *);
+static void pvr2_hdw_encoder_wait_timeout(struct timer_list *);
+static void pvr2_hdw_encoder_run_timeout(struct timer_list *);
 static int pvr2_issue_simple_cmd(struct pvr2_hdw *,u32);
 static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
 				unsigned int timeout,int probe_fl,
@@ -2373,18 +2373,15 @@ struct pvr2_hdw *pvr2_hdw_create(struct usb_interface *intf,
 	}
 	if (!hdw) goto fail;
 
-	setup_timer(&hdw->quiescent_timer, pvr2_hdw_quiescent_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->quiescent_timer, pvr2_hdw_quiescent_timeout, 0);
 
-	setup_timer(&hdw->decoder_stabilization_timer,
-		    pvr2_hdw_decoder_stabilization_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->decoder_stabilization_timer,
+		    pvr2_hdw_decoder_stabilization_timeout, 0);
 
-	setup_timer(&hdw->encoder_wait_timer, pvr2_hdw_encoder_wait_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->encoder_wait_timer, pvr2_hdw_encoder_wait_timeout,
+		    0);
 
-	setup_timer(&hdw->encoder_run_timer, pvr2_hdw_encoder_run_timeout,
-		    (unsigned long)hdw);
+	timer_setup(&hdw->encoder_run_timer, pvr2_hdw_encoder_run_timeout, 0);
 
 	hdw->master_state = PVR2_STATE_DEAD;
 
@@ -3539,10 +3536,16 @@ static void pvr2_ctl_read_complete(struct urb *urb)
 	complete(&hdw->ctl_done);
 }
 
+struct hdw_timer {
+	struct timer_list timer;
+	struct pvr2_hdw *hdw;
+};
 
-static void pvr2_ctl_timeout(unsigned long data)
+static void pvr2_ctl_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct hdw_timer *timer = from_timer(timer, t, timer);
+	struct pvr2_hdw *hdw = timer->hdw;
+
 	if (hdw->ctl_write_pend_flag || hdw->ctl_read_pend_flag) {
 		hdw->ctl_timeout_flag = !0;
 		if (hdw->ctl_write_pend_flag)
@@ -3564,7 +3567,10 @@ static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
 {
 	unsigned int idx;
 	int status = 0;
-	struct timer_list timer;
+	struct hdw_timer timer = {
+		.hdw = hdw,
+	};
+
 	if (!hdw->ctl_lock_held) {
 		pvr2_trace(PVR2_TRACE_ERROR_LEGS,
 			   "Attempted to execute control transfer without lock!!");
@@ -3621,8 +3627,8 @@ static int pvr2_send_request_ex(struct pvr2_hdw *hdw,
 	hdw->ctl_timeout_flag = 0;
 	hdw->ctl_write_pend_flag = 0;
 	hdw->ctl_read_pend_flag = 0;
-	setup_timer(&timer, pvr2_ctl_timeout, (unsigned long)hdw);
-	timer.expires = jiffies + timeout;
+	timer_setup_on_stack(&timer.timer, pvr2_ctl_timeout, 0);
+	timer.timer.expires = jiffies + timeout;
 
 	if (write_len && write_data) {
 		hdw->cmd_debug_state = 2;
@@ -3677,7 +3683,7 @@ status);
 	}
 
 	/* Start timer */
-	add_timer(&timer);
+	add_timer(&timer.timer);
 
 	/* Now wait for all I/O to complete */
 	hdw->cmd_debug_state = 4;
@@ -3687,7 +3693,7 @@ status);
 	hdw->cmd_debug_state = 5;
 
 	/* Stop timer */
-	del_timer_sync(&timer);
+	del_timer_sync(&timer.timer);
 
 	hdw->cmd_debug_state = 6;
 	status = 0;
@@ -3769,6 +3775,8 @@ status);
 	if ((status < 0) && (!probe_fl)) {
 		pvr2_hdw_render_useless(hdw);
 	}
+	destroy_timer_on_stack(&timer.timer);
+
 	return status;
 }
 
@@ -4366,9 +4374,9 @@ static int state_eval_encoder_run(struct pvr2_hdw *hdw)
 
 
 /* Timeout function for quiescent timer. */
-static void pvr2_hdw_quiescent_timeout(unsigned long data)
+static void pvr2_hdw_quiescent_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, quiescent_timer);
 	hdw->state_decoder_quiescent = !0;
 	trace_stbit("state_decoder_quiescent",hdw->state_decoder_quiescent);
 	hdw->state_stale = !0;
@@ -4377,9 +4385,9 @@ static void pvr2_hdw_quiescent_timeout(unsigned long data)
 
 
 /* Timeout function for decoder stabilization timer. */
-static void pvr2_hdw_decoder_stabilization_timeout(unsigned long data)
+static void pvr2_hdw_decoder_stabilization_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, decoder_stabilization_timer);
 	hdw->state_decoder_ready = !0;
 	trace_stbit("state_decoder_ready", hdw->state_decoder_ready);
 	hdw->state_stale = !0;
@@ -4388,9 +4396,9 @@ static void pvr2_hdw_decoder_stabilization_timeout(unsigned long data)
 
 
 /* Timeout function for encoder wait timer. */
-static void pvr2_hdw_encoder_wait_timeout(unsigned long data)
+static void pvr2_hdw_encoder_wait_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, encoder_wait_timer);
 	hdw->state_encoder_waitok = !0;
 	trace_stbit("state_encoder_waitok",hdw->state_encoder_waitok);
 	hdw->state_stale = !0;
@@ -4399,9 +4407,9 @@ static void pvr2_hdw_encoder_wait_timeout(unsigned long data)
 
 
 /* Timeout function for encoder run timer. */
-static void pvr2_hdw_encoder_run_timeout(unsigned long data)
+static void pvr2_hdw_encoder_run_timeout(struct timer_list *t)
 {
-	struct pvr2_hdw *hdw = (struct pvr2_hdw *)data;
+	struct pvr2_hdw *hdw = from_timer(hdw, t, encoder_run_timer);
 	if (!hdw->state_encoder_runok) {
 		hdw->state_encoder_runok = !0;
 		trace_stbit("state_encoder_runok",hdw->state_encoder_runok);
diff --git a/drivers/media/usb/pwc/pwc-nala.h b/drivers/media/usb/pwc/pwc-nala.h
index 168c73ef75d8..0fe9d473f4e9 100644
--- a/drivers/media/usb/pwc/pwc-nala.h
+++ b/drivers/media/usb/pwc/pwc-nala.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
    /* SQCIF */
    {
       {0, 0, {0x04, 0x01, 0x03}},
diff --git a/drivers/media/usb/stk1160/Makefile b/drivers/media/usb/stk1160/Makefile
index 42d05463b353..613471528749 100644
--- a/drivers/media/usb/stk1160/Makefile
+++ b/drivers/media/usb/stk1160/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 stk1160-y := 	stk1160-core.o \
 		stk1160-v4l.o \
 		stk1160-video.o \
diff --git a/drivers/media/usb/tm6000/Makefile b/drivers/media/usb/tm6000/Makefile
index f2644933b8d1..05322a72e862 100644
--- a/drivers/media/usb/tm6000/Makefile
+++ b/drivers/media/usb/tm6000/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 tm6000-y := tm6000-cards.o \
 		   tm6000-core.o  \
 		   tm6000-i2c.o   \
diff --git a/drivers/media/usb/usbvision/usbvision-cards.h b/drivers/media/usb/usbvision/usbvision-cards.h
index a51cc1185cce..07ec83512743 100644
--- a/drivers/media/usb/usbvision/usbvision-cards.h
+++ b/drivers/media/usb/usbvision/usbvision-cards.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define XANBOO                                   0
 #define BELKIN_VIDEOBUS_II                       1
 #define BELKIN_VIDEOBUS                          2
diff --git a/drivers/media/usb/uvc/Makefile b/drivers/media/usb/uvc/Makefile
index c26d12fdb8f4..a4fe5b5d533f 100644
--- a/drivers/media/usb/uvc/Makefile
+++ b/drivers/media/usb/uvc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 uvcvideo-objs  := uvc_driver.o uvc_queue.o uvc_v4l2.o uvc_video.o uvc_ctrl.o \
 		  uvc_status.o uvc_isight.o uvc_debugfs.o
 ifeq ($(CONFIG_MEDIA_CONTROLLER),y)
diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h
index 34c7ee6cc9e5..05398784d1c8 100644
--- a/drivers/media/usb/uvc/uvcvideo.h
+++ b/drivers/media/usb/uvc/uvcvideo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _USB_VIDEO_H_
 #define _USB_VIDEO_H_
 
diff --git a/drivers/media/v4l2-core/Makefile b/drivers/media/v4l2-core/Makefile
index 098ad5fd5231..77303286aef7 100644
--- a/drivers/media/v4l2-core/Makefile
+++ b/drivers/media/v4l2-core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the V4L2 core
 #
diff --git a/drivers/media/v4l2-core/v4l2-trace.c b/drivers/media/v4l2-core/v4l2-trace.c
index 7416010542c1..95f3b02e1f84 100644
--- a/drivers/media/v4l2-core/v4l2-trace.c
+++ b/drivers/media/v4l2-core/v4l2-trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <media/v4l2-common.h>
 #include <media/v4l2-fh.h>
 #include <media/videobuf2-v4l2.h>
diff --git a/drivers/media/v4l2-core/vb2-trace.c b/drivers/media/v4l2-core/vb2-trace.c
index 61e74f5936b3..4c0f39d271f0 100644
--- a/drivers/media/v4l2-core/vb2-trace.c
+++ b/drivers/media/v4l2-core/vb2-trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <media/videobuf2-core.h>
 
 #define CREATE_TRACE_POINTS
diff --git a/drivers/memory/Makefile b/drivers/memory/Makefile
index e88097fbc085..470b93e3858d 100644
--- a/drivers/memory/Makefile
+++ b/drivers/memory/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for memory devices
 #
diff --git a/drivers/memory/tegra/Makefile b/drivers/memory/tegra/Makefile
index c2cb671ffc4a..b44e8627a5e0 100644
--- a/drivers/memory/tegra/Makefile
+++ b/drivers/memory/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 tegra-mc-y := mc.o
 
 tegra-mc-$(CONFIG_ARCH_TEGRA_3x_SOC)  += tegra30.o
diff --git a/drivers/memstick/host/Makefile b/drivers/memstick/host/Makefile
index 491c9557441d..1abaa03ee68c 100644
--- a/drivers/memstick/host/Makefile
+++ b/drivers/memstick/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for MemoryStick host controller drivers
 #
diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c
index 48db922075e2..bcdca9fbef51 100644
--- a/drivers/memstick/host/jmb38x_ms.c
+++ b/drivers/memstick/host/jmb38x_ms.c
@@ -59,6 +59,7 @@ struct jmb38x_ms_host {
 	unsigned int            block_pos;
 	unsigned long           timeout_jiffies;
 	struct timer_list       timer;
+	struct memstick_host	*msh;
 	struct memstick_request *req;
 	unsigned char           cmd_flags;
 	unsigned char           io_pos;
@@ -592,10 +593,10 @@ static irqreturn_t jmb38x_ms_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void jmb38x_ms_abort(unsigned long data)
+static void jmb38x_ms_abort(struct timer_list *t)
 {
-	struct memstick_host *msh = (struct memstick_host *)data;
-	struct jmb38x_ms_host *host = memstick_priv(msh);
+	struct jmb38x_ms_host *host = from_timer(host, t, timer);
+	struct memstick_host *msh = host->msh;
 	unsigned long flags;
 
 	dev_dbg(&host->chip->pdev->dev, "abort\n");
@@ -878,6 +879,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt)
 		return NULL;
 
 	host = memstick_priv(msh);
+	host->msh = msh;
 	host->chip = jm;
 	host->addr = ioremap(pci_resource_start(jm->pdev, cnt),
 			     pci_resource_len(jm->pdev, cnt));
@@ -897,7 +899,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt)
 
 	msh->caps = MEMSTICK_CAP_PAR4 | MEMSTICK_CAP_PAR8;
 
-	setup_timer(&host->timer, jmb38x_ms_abort, (unsigned long)msh);
+	timer_setup(&host->timer, jmb38x_ms_abort, 0);
 
 	if (!request_irq(host->irq, jmb38x_ms_isr, IRQF_SHARED, host->host_id,
 			 msh))
diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index d5cfb503b9d6..627d6e62fe31 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -616,9 +616,9 @@ static void r592_update_card_detect(struct r592_device *dev)
 }
 
 /* Timer routine that fires 1 second after last card detection event, */
-static void r592_detect_timer(long unsigned int data)
+static void r592_detect_timer(struct timer_list *t)
 {
-	struct r592_device *dev = (struct r592_device *)data;
+	struct r592_device *dev = from_timer(dev, t, detect_timer);
 	r592_update_card_detect(dev);
 	memstick_detect_change(dev->host);
 }
@@ -770,8 +770,7 @@ static int r592_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init(&dev->io_thread_lock);
 	init_completion(&dev->dma_done);
 	INIT_KFIFO(dev->pio_fifo);
-	setup_timer(&dev->detect_timer,
-		r592_detect_timer, (long unsigned int)dev);
+	timer_setup(&dev->detect_timer, r592_detect_timer, 0);
 
 	/* Host initialization */
 	host->caps = MEMSTICK_CAP_PAR4;
diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
index 7bafa72f8f57..bed205849d02 100644
--- a/drivers/memstick/host/tifm_ms.c
+++ b/drivers/memstick/host/tifm_ms.c
@@ -538,9 +538,9 @@ static int tifm_ms_set_param(struct memstick_host *msh,
 	return 0;
 }
 
-static void tifm_ms_abort(unsigned long data)
+static void tifm_ms_abort(struct timer_list *t)
 {
-	struct tifm_ms *host = (struct tifm_ms *)data;
+	struct tifm_ms *host = from_timer(host, t, timer);
 
 	dev_dbg(&host->dev->dev, "status %x\n",
 		readl(host->dev->addr + SOCK_MS_STATUS));
@@ -575,7 +575,7 @@ static int tifm_ms_probe(struct tifm_dev *sock)
 	host->dev = sock;
 	host->timeout_jiffies = msecs_to_jiffies(1000);
 
-	setup_timer(&host->timer, tifm_ms_abort, (unsigned long)host);
+	timer_setup(&host->timer, tifm_ms_abort, 0);
 	tasklet_init(&host->notify, tifm_ms_req_tasklet, (unsigned long)msh);
 
 	msh->request = tifm_ms_submit_req;
diff --git a/drivers/message/fusion/Makefile b/drivers/message/fusion/Makefile
index d182a24b3195..e2d98b5c6f98 100644
--- a/drivers/message/fusion/Makefile
+++ b/drivers/message/fusion/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Fusion MPT drivers; recognized debug defines...
 
 # enable verbose logging
diff --git a/drivers/message/fusion/lsi/mpi.h b/drivers/message/fusion/lsi/mpi.h
index 11c0f461320e..a575545d681f 100644
--- a/drivers/message/fusion/lsi/mpi.h
+++ b/drivers/message/fusion/lsi/mpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h
index d9bcfba6b049..4e9c0ce94f27 100644
--- a/drivers/message/fusion/lsi/mpi_cnfg.h
+++ b/drivers/message/fusion/lsi/mpi_cnfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_fc.h b/drivers/message/fusion/lsi/mpi_fc.h
index 7d663ce76f8c..bdea95e0cde2 100644
--- a/drivers/message/fusion/lsi/mpi_fc.h
+++ b/drivers/message/fusion/lsi/mpi_fc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_init.h b/drivers/message/fusion/lsi/mpi_init.h
index 4295d062caa7..bc6326ff2f22 100644
--- a/drivers/message/fusion/lsi/mpi_init.h
+++ b/drivers/message/fusion/lsi/mpi_init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_ioc.h b/drivers/message/fusion/lsi/mpi_ioc.h
index 19fb21b8f0ce..c249f2994fc1 100644
--- a/drivers/message/fusion/lsi/mpi_ioc.h
+++ b/drivers/message/fusion/lsi/mpi_ioc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_lan.h b/drivers/message/fusion/lsi/mpi_lan.h
index f41fcb69b359..d06f9928684a 100644
--- a/drivers/message/fusion/lsi/mpi_lan.h
+++ b/drivers/message/fusion/lsi/mpi_lan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_log_fc.h b/drivers/message/fusion/lsi/mpi_log_fc.h
index 03be8b217709..f1e75dd5dd58 100644
--- a/drivers/message/fusion/lsi/mpi_log_fc.h
+++ b/drivers/message/fusion/lsi/mpi_log_fc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation. All rights reserved.
  *
diff --git a/drivers/message/fusion/lsi/mpi_log_sas.h b/drivers/message/fusion/lsi/mpi_log_sas.h
index f62960b5d527..27fe17a75eaa 100644
--- a/drivers/message/fusion/lsi/mpi_log_sas.h
+++ b/drivers/message/fusion/lsi/mpi_log_sas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /***************************************************************************
  *                                                                         *
  *  Copyright (c) 2000-2008 LSI Corporation.  All rights reserved.         *
diff --git a/drivers/message/fusion/lsi/mpi_raid.h b/drivers/message/fusion/lsi/mpi_raid.h
index add60cc85be1..36688a921ef2 100644
--- a/drivers/message/fusion/lsi/mpi_raid.h
+++ b/drivers/message/fusion/lsi/mpi_raid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2001-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_sas.h b/drivers/message/fusion/lsi/mpi_sas.h
index ab410036bbfc..56013f288aaa 100644
--- a/drivers/message/fusion/lsi/mpi_sas.h
+++ b/drivers/message/fusion/lsi/mpi_sas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2004-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_targ.h b/drivers/message/fusion/lsi/mpi_targ.h
index c3dea7f6909d..97e6eead6cb4 100644
--- a/drivers/message/fusion/lsi/mpi_targ.h
+++ b/drivers/message/fusion/lsi/mpi_targ.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_tool.h b/drivers/message/fusion/lsi/mpi_tool.h
index 53cd715aa7e4..b11456fb8277 100644
--- a/drivers/message/fusion/lsi/mpi_tool.h
+++ b/drivers/message/fusion/lsi/mpi_tool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2001-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/lsi/mpi_type.h b/drivers/message/fusion/lsi/mpi_type.h
index 888b26dbc413..073e637cfdb4 100644
--- a/drivers/message/fusion/lsi/mpi_type.h
+++ b/drivers/message/fusion/lsi/mpi_type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (c) 2000-2008 LSI Corporation.
  *
diff --git a/drivers/message/fusion/mptdebug.h b/drivers/message/fusion/mptdebug.h
index 28e478879284..2205dcab0adb 100644
--- a/drivers/message/fusion/mptdebug.h
+++ b/drivers/message/fusion/mptdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/drivers/message/fusion/mptdebug.h
  *      For use with LSI PCI chip/adapter(s)
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index c3d0a1b39bb6..8703ff17998e 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for multifunction miscellaneous devices
 #
diff --git a/drivers/mfd/kempld-core.c b/drivers/mfd/kempld-core.c
index 895f655780a7..55d824b3a808 100644
--- a/drivers/mfd/kempld-core.c
+++ b/drivers/mfd/kempld-core.c
@@ -494,7 +494,7 @@ static struct platform_driver kempld_driver = {
 	.remove		= kempld_remove,
 };
 
-static struct dmi_system_id kempld_dmi_table[] __initdata = {
+static const struct dmi_system_id kempld_dmi_table[] __initconst = {
 	{
 		.ident = "BBD6",
 		.matches = {
diff --git a/drivers/mfd/twl-core.h b/drivers/mfd/twl-core.h
index 6ff99dce714f..6f96c2009a9f 100644
--- a/drivers/mfd/twl-core.h
+++ b/drivers/mfd/twl-core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TWL_CORE_H__
 #define __TWL_CORE_H__
 
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 8136dc7e863d..f1a5c2357b14 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -393,16 +393,6 @@ config SPEAR13XX_PCIE_GADGET
 	 entry will be created for that controller. User can use these
 	 sysfs node to configure PCIe EP as per his requirements.
 
-config TI_DAC7512
-	tristate "Texas Instruments DAC7512"
-	depends on SPI && SYSFS
-	help
-	  If you say yes here you get support for the Texas Instruments
-	  DAC7512 16-bit digital-to-analog converter.
-
-	  This driver can also be built as a module. If so, the module
-	  will be called ti_dac7512.
-
 config VMWARE_BALLOON
 	tristate "VMware Balloon Driver"
 	depends on VMWARE_VMCI && X86 && HYPERVISOR_GUEST
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index d84819dc2468..5ca5f64df478 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for misc devices that really don't fit anywhere else.
 #
@@ -30,7 +31,6 @@ obj-$(CONFIG_ISL29003)		+= isl29003.o
 obj-$(CONFIG_ISL29020)		+= isl29020.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
 obj-$(CONFIG_DS1682)		+= ds1682.o
-obj-$(CONFIG_TI_DAC7512)	+= ti_dac7512.o
 obj-$(CONFIG_C2PORT)		+= c2port/
 obj-$(CONFIG_HMC6352)		+= hmc6352.o
 obj-y				+= eeprom/
diff --git a/drivers/misc/cxl/Makefile b/drivers/misc/cxl/Makefile
index 0b5fd749d96d..502d41fc9ea5 100644
--- a/drivers/misc/cxl/Makefile
+++ b/drivers/misc/cxl/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y			:= $(call cc-disable-warning, unused-const-variable)
 ccflags-$(CONFIG_PPC_WERROR)	+= -Werror
 
diff --git a/drivers/misc/cxl/cxllib.c b/drivers/misc/cxl/cxllib.c
index 5dba23ca2e5f..dc9bc1807fdf 100644
--- a/drivers/misc/cxl/cxllib.c
+++ b/drivers/misc/cxl/cxllib.c
@@ -219,8 +219,17 @@ int cxllib_handle_fault(struct mm_struct *mm, u64 addr, u64 size, u64 flags)
 
 	down_read(&mm->mmap_sem);
 
-	for (dar = addr; dar < addr + size; dar += page_size) {
-		if (!vma || dar < vma->vm_start || dar > vma->vm_end) {
+	vma = find_vma(mm, addr);
+	if (!vma) {
+		pr_err("Can't find vma for addr %016llx\n", addr);
+		rc = -EFAULT;
+		goto out;
+	}
+	/* get the size of the pages allocated */
+	page_size = vma_kernel_pagesize(vma);
+
+	for (dar = (addr & ~(page_size - 1)); dar < (addr + size); dar += page_size) {
+		if (dar < vma->vm_start || dar >= vma->vm_end) {
 			vma = find_vma(mm, addr);
 			if (!vma) {
 				pr_err("Can't find vma for addr %016llx\n", addr);
diff --git a/drivers/misc/cxl/flash.c b/drivers/misc/cxl/flash.c
index 3aa216bf0939..43917898fb9a 100644
--- a/drivers/misc/cxl/flash.c
+++ b/drivers/misc/cxl/flash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/fs.h>
 #include <linux/semaphore.h>
diff --git a/drivers/misc/cxl/pci.c b/drivers/misc/cxl/pci.c
index d18b3d9292fd..3ba04f371380 100644
--- a/drivers/misc/cxl/pci.c
+++ b/drivers/misc/cxl/pci.c
@@ -1279,7 +1279,7 @@ ssize_t cxl_pci_afu_read_err_buffer(struct cxl_afu *afu, char *buf,
 	}
 
 	/* use bounce buffer for copy */
-	tbuf = (void *)__get_free_page(GFP_TEMPORARY);
+	tbuf = (void *)__get_free_page(GFP_KERNEL);
 	if (!tbuf)
 		return -ENOMEM;
 
diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile
index 90a52624ddeb..2aab60ef3e3e 100644
--- a/drivers/misc/eeprom/Makefile
+++ b/drivers/misc/eeprom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_EEPROM_AT24)	+= at24.o
 obj-$(CONFIG_EEPROM_AT25)	+= at25.o
 obj-$(CONFIG_EEPROM_LEGACY)	+= eeprom.o
diff --git a/drivers/misc/ibmasm/Makefile b/drivers/misc/ibmasm/Makefile
index 9e63ade5ffd6..1b9dd0f44411 100644
--- a/drivers/misc/ibmasm/Makefile
+++ b/drivers/misc/ibmasm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_IBM_ASM) := ibmasm.o
 
diff --git a/drivers/misc/lkdtm.h b/drivers/misc/lkdtm.h
index bfb6c45b6130..687a0dbbe199 100644
--- a/drivers/misc/lkdtm.h
+++ b/drivers/misc/lkdtm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LKDTM_H
 #define __LKDTM_H
 
diff --git a/drivers/misc/lkdtm_bugs.c b/drivers/misc/lkdtm_bugs.c
index 9e0b4f959987..b0f7af872bb5 100644
--- a/drivers/misc/lkdtm_bugs.c
+++ b/drivers/misc/lkdtm_bugs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is for all the tests related to logic bugs (e.g. bad dereferences,
  * bad alignment, bad loops, bad locking, bad scheduling, deep stacks, and
diff --git a/drivers/misc/lkdtm_core.c b/drivers/misc/lkdtm_core.c
index 981b3ef71e47..ed7f0c61c59a 100644
--- a/drivers/misc/lkdtm_core.c
+++ b/drivers/misc/lkdtm_core.c
@@ -56,122 +56,54 @@ static ssize_t direct_entry(struct file *f, const char __user *user_buf,
 			    size_t count, loff_t *off);
 
 #ifdef CONFIG_KPROBES
-static void lkdtm_handler(void);
+static int lkdtm_kprobe_handler(struct kprobe *kp, struct pt_regs *regs);
 static ssize_t lkdtm_debugfs_entry(struct file *f,
 				   const char __user *user_buf,
 				   size_t count, loff_t *off);
-
-
-/* jprobe entry point handlers. */
-static unsigned int jp_do_irq(unsigned int irq)
-{
-	lkdtm_handler();
-	jprobe_return();
-	return 0;
-}
-
-static irqreturn_t jp_handle_irq_event(unsigned int irq,
-				       struct irqaction *action)
-{
-	lkdtm_handler();
-	jprobe_return();
-	return 0;
-}
-
-static void jp_tasklet_action(struct softirq_action *a)
-{
-	lkdtm_handler();
-	jprobe_return();
-}
-
-static void jp_ll_rw_block(int rw, int nr, struct buffer_head *bhs[])
-{
-	lkdtm_handler();
-	jprobe_return();
-}
-
-struct scan_control;
-
-static unsigned long jp_shrink_inactive_list(unsigned long max_scan,
-					     struct zone *zone,
-					     struct scan_control *sc)
-{
-	lkdtm_handler();
-	jprobe_return();
-	return 0;
-}
-
-static int jp_hrtimer_start(struct hrtimer *timer, ktime_t tim,
-			    const enum hrtimer_mode mode)
-{
-	lkdtm_handler();
-	jprobe_return();
-	return 0;
-}
-
-static int jp_scsi_dispatch_cmd(struct scsi_cmnd *cmd)
-{
-	lkdtm_handler();
-	jprobe_return();
-	return 0;
-}
-
-# ifdef CONFIG_IDE
-static int jp_generic_ide_ioctl(ide_drive_t *drive, struct file *file,
-			struct block_device *bdev, unsigned int cmd,
-			unsigned long arg)
-{
-	lkdtm_handler();
-	jprobe_return();
-	return 0;
-}
-# endif
+# define CRASHPOINT_KPROBE(_symbol)				\
+		.kprobe = {					\
+			.symbol_name = (_symbol),		\
+			.pre_handler = lkdtm_kprobe_handler,	\
+		},
+# define CRASHPOINT_WRITE(_symbol)				\
+		(_symbol) ? lkdtm_debugfs_entry : direct_entry
+#else
+# define CRASHPOINT_KPROBE(_symbol)
+# define CRASHPOINT_WRITE(_symbol)		direct_entry
 #endif
 
 /* Crash points */
 struct crashpoint {
 	const char *name;
 	const struct file_operations fops;
-	struct jprobe jprobe;
+	struct kprobe kprobe;
 };
 
-#define CRASHPOINT(_name, _write, _symbol, _entry)		\
+#define CRASHPOINT(_name, _symbol)				\
 	{							\
 		.name = _name,					\
 		.fops = {					\
 			.read	= lkdtm_debugfs_read,		\
 			.llseek	= generic_file_llseek,		\
 			.open	= lkdtm_debugfs_open,		\
-			.write	= _write,			\
-		},						\
-		.jprobe = {					\
-			.kp.symbol_name = _symbol,		\
-			.entry = (kprobe_opcode_t *)_entry,	\
+			.write	= CRASHPOINT_WRITE(_symbol)	\
 		},						\
+		CRASHPOINT_KPROBE(_symbol)			\
 	}
 
 /* Define the possible places where we can trigger a crash point. */
-struct crashpoint crashpoints[] = {
-	CRASHPOINT("DIRECT",			direct_entry,
-		   NULL,			NULL),
+static struct crashpoint crashpoints[] = {
+	CRASHPOINT("DIRECT",		 NULL),
 #ifdef CONFIG_KPROBES
-	CRASHPOINT("INT_HARDWARE_ENTRY",	lkdtm_debugfs_entry,
-		   "do_IRQ",			jp_do_irq),
-	CRASHPOINT("INT_HW_IRQ_EN",		lkdtm_debugfs_entry,
-		   "handle_IRQ_event",		jp_handle_irq_event),
-	CRASHPOINT("INT_TASKLET_ENTRY",		lkdtm_debugfs_entry,
-		   "tasklet_action",		jp_tasklet_action),
-	CRASHPOINT("FS_DEVRW",			lkdtm_debugfs_entry,
-		   "ll_rw_block",		jp_ll_rw_block),
-	CRASHPOINT("MEM_SWAPOUT",		lkdtm_debugfs_entry,
-		   "shrink_inactive_list",	jp_shrink_inactive_list),
-	CRASHPOINT("TIMERADD",			lkdtm_debugfs_entry,
-		   "hrtimer_start",		jp_hrtimer_start),
-	CRASHPOINT("SCSI_DISPATCH_CMD",		lkdtm_debugfs_entry,
-		   "scsi_dispatch_cmd",		jp_scsi_dispatch_cmd),
+	CRASHPOINT("INT_HARDWARE_ENTRY", "do_IRQ"),
+	CRASHPOINT("INT_HW_IRQ_EN",	 "handle_IRQ_event"),
+	CRASHPOINT("INT_TASKLET_ENTRY",	 "tasklet_action"),
+	CRASHPOINT("FS_DEVRW",		 "ll_rw_block"),
+	CRASHPOINT("MEM_SWAPOUT",	 "shrink_inactive_list"),
+	CRASHPOINT("TIMERADD",		 "hrtimer_start"),
+	CRASHPOINT("SCSI_DISPATCH_CMD",	 "scsi_dispatch_cmd"),
 # ifdef CONFIG_IDE
-	CRASHPOINT("IDE_CORE_CP",		lkdtm_debugfs_entry,
-		   "generic_ide_ioctl",		jp_generic_ide_ioctl),
+	CRASHPOINT("IDE_CORE_CP",	 "generic_ide_ioctl"),
 # endif
 #endif
 };
@@ -254,8 +186,8 @@ struct crashtype crashtypes[] = {
 };
 
 
-/* Global jprobe entry and crashtype. */
-static struct jprobe *lkdtm_jprobe;
+/* Global kprobe entry and crashtype. */
+static struct kprobe *lkdtm_kprobe;
 struct crashpoint *lkdtm_crashpoint;
 struct crashtype *lkdtm_crashtype;
 
@@ -298,7 +230,8 @@ static struct crashtype *find_crashtype(const char *name)
  */
 static noinline void lkdtm_do_action(struct crashtype *crashtype)
 {
-	BUG_ON(!crashtype || !crashtype->func);
+	if (WARN_ON(!crashtype || !crashtype->func))
+		return;
 	crashtype->func();
 }
 
@@ -308,22 +241,22 @@ static int lkdtm_register_cpoint(struct crashpoint *crashpoint,
 	int ret;
 
 	/* If this doesn't have a symbol, just call immediately. */
-	if (!crashpoint->jprobe.kp.symbol_name) {
+	if (!crashpoint->kprobe.symbol_name) {
 		lkdtm_do_action(crashtype);
 		return 0;
 	}
 
-	if (lkdtm_jprobe != NULL)
-		unregister_jprobe(lkdtm_jprobe);
+	if (lkdtm_kprobe != NULL)
+		unregister_kprobe(lkdtm_kprobe);
 
 	lkdtm_crashpoint = crashpoint;
 	lkdtm_crashtype = crashtype;
-	lkdtm_jprobe = &crashpoint->jprobe;
-	ret = register_jprobe(lkdtm_jprobe);
+	lkdtm_kprobe = &crashpoint->kprobe;
+	ret = register_kprobe(lkdtm_kprobe);
 	if (ret < 0) {
-		pr_info("Couldn't register jprobe %s\n",
-			crashpoint->jprobe.kp.symbol_name);
-		lkdtm_jprobe = NULL;
+		pr_info("Couldn't register kprobe %s\n",
+			crashpoint->kprobe.symbol_name);
+		lkdtm_kprobe = NULL;
 		lkdtm_crashpoint = NULL;
 		lkdtm_crashtype = NULL;
 	}
@@ -336,13 +269,14 @@ static int lkdtm_register_cpoint(struct crashpoint *crashpoint,
 static int crash_count = DEFAULT_COUNT;
 static DEFINE_SPINLOCK(crash_count_lock);
 
-/* Called by jprobe entry points. */
-static void lkdtm_handler(void)
+/* Called by kprobe entry points. */
+static int lkdtm_kprobe_handler(struct kprobe *kp, struct pt_regs *regs)
 {
 	unsigned long flags;
 	bool do_it = false;
 
-	BUG_ON(!lkdtm_crashpoint || !lkdtm_crashtype);
+	if (WARN_ON(!lkdtm_crashpoint || !lkdtm_crashtype))
+		return 0;
 
 	spin_lock_irqsave(&crash_count_lock, flags);
 	crash_count--;
@@ -357,6 +291,8 @@ static void lkdtm_handler(void)
 
 	if (do_it)
 		lkdtm_do_action(lkdtm_crashtype);
+
+	return 0;
 }
 
 static ssize_t lkdtm_debugfs_entry(struct file *f,
@@ -556,8 +492,8 @@ static void __exit lkdtm_module_exit(void)
 	/* Handle test-specific clean-up. */
 	lkdtm_usercopy_exit();
 
-	if (lkdtm_jprobe != NULL)
-		unregister_jprobe(lkdtm_jprobe);
+	if (lkdtm_kprobe != NULL)
+		unregister_kprobe(lkdtm_kprobe);
 
 	pr_info("Crash point unregistered\n");
 }
diff --git a/drivers/misc/lkdtm_heap.c b/drivers/misc/lkdtm_heap.c
index ffb6aeac07b3..f5494a6d4be5 100644
--- a/drivers/misc/lkdtm_heap.c
+++ b/drivers/misc/lkdtm_heap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is for all the tests relating directly to heap memory, including
  * page allocation and slab allocations.
diff --git a/drivers/misc/lkdtm_perms.c b/drivers/misc/lkdtm_perms.c
index c7635a79341f..53b85c9d16b8 100644
--- a/drivers/misc/lkdtm_perms.c
+++ b/drivers/misc/lkdtm_perms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is for all the tests related to validating kernel memory
  * permissions: non-executable regions, non-writable regions, and
diff --git a/drivers/misc/lkdtm_rodata.c b/drivers/misc/lkdtm_rodata.c
index 3564477b8c2d..58d180af72cf 100644
--- a/drivers/misc/lkdtm_rodata.c
+++ b/drivers/misc/lkdtm_rodata.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This includes functions that are meant to live entirely in .rodata
  * (via objcopy tricks), to validate the non-executability of .rodata.
diff --git a/drivers/misc/lkdtm_usercopy.c b/drivers/misc/lkdtm_usercopy.c
index df6ac985fbb5..a64372cc148d 100644
--- a/drivers/misc/lkdtm_usercopy.c
+++ b/drivers/misc/lkdtm_usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is for all the tests related to copy_to_user() and copy_from_user()
  * hardening.
diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile
index 12cceb011a23..cd6825afa8e1 100644
--- a/drivers/misc/mei/Makefile
+++ b/drivers/misc/mei/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - Intel Management Engine Interface (Intel MEI) Linux driver
 # Copyright (c) 2010-2014, Intel Corporation.
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index c8307e8b4c16..0ccccbaf530d 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -127,6 +127,8 @@
 #define MEI_DEV_ID_BXT_M      0x1A9A  /* Broxton M */
 #define MEI_DEV_ID_APL_I      0x5A9A  /* Apollo Lake I */
 
+#define MEI_DEV_ID_GLK        0x319A  /* Gemini Lake */
+
 #define MEI_DEV_ID_KBP        0xA2BA  /* Kaby Point */
 #define MEI_DEV_ID_KBP_2      0xA2BB  /* Kaby Point 2 */
 
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 4ff40d319676..f4f17552c9b8 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -93,6 +93,8 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
 	{MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, MEI_ME_PCH8_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, MEI_ME_PCH8_CFG)},
 
+	{MEI_PCI_DEVICE(MEI_DEV_ID_GLK, MEI_ME_PCH8_CFG)},
+
 	{MEI_PCI_DEVICE(MEI_DEV_ID_KBP, MEI_ME_PCH8_CFG)},
 	{MEI_PCI_DEVICE(MEI_DEV_ID_KBP_2, MEI_ME_PCH8_CFG)},
 
@@ -223,15 +225,18 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * MEI requires to resume from runtime suspend mode
 	 * in order to perform link reset flow upon system suspend.
 	 */
-	pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
 
 	/*
-	* For not wake-able HW runtime pm framework
-	* can't be used on pci device level.
-	* Use domain runtime pm callbacks instead.
-	*/
-	if (!pci_dev_run_wake(pdev))
-		mei_me_set_pm_domain(dev);
+	 * ME maps runtime suspend/resume to D0i states,
+	 * hence we need to go around native PCI runtime service which
+	 * eventually brings the device into D3cold/hot state,
+	 * but the mei device cannot wake up from D3 unlike from D0i3.
+	 * To get around the PCI device native runtime pm,
+	 * ME uses runtime pm domain handlers which take precedence
+	 * over the driver's pm handlers.
+	 */
+	mei_me_set_pm_domain(dev);
 
 	if (mei_pg_is_enabled(dev))
 		pm_runtime_put_noidle(&pdev->dev);
@@ -271,8 +276,7 @@ static void mei_me_shutdown(struct pci_dev *pdev)
 	dev_dbg(&pdev->dev, "shutdown\n");
 	mei_stop(dev);
 
-	if (!pci_dev_run_wake(pdev))
-		mei_me_unset_pm_domain(dev);
+	mei_me_unset_pm_domain(dev);
 
 	mei_disable_interrupts(dev);
 	free_irq(pdev->irq, dev);
@@ -300,8 +304,7 @@ static void mei_me_remove(struct pci_dev *pdev)
 	dev_dbg(&pdev->dev, "stop\n");
 	mei_stop(dev);
 
-	if (!pci_dev_run_wake(pdev))
-		mei_me_unset_pm_domain(dev);
+	mei_me_unset_pm_domain(dev);
 
 	mei_disable_interrupts(dev);
 
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index e38a5f144373..e1b909123fb0 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -141,15 +141,17 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 * MEI requires to resume from runtime suspend mode
 	 * in order to perform link reset flow upon system suspend.
 	 */
-	pdev->dev_flags |= PCI_DEV_FLAGS_NEEDS_RESUME;
+	dev_pm_set_driver_flags(&pdev->dev, DPM_FLAG_NEVER_SKIP);
 
 	/*
-	* For not wake-able HW runtime pm framework
-	* can't be used on pci device level.
-	* Use domain runtime pm callbacks instead.
-	*/
-	if (!pci_dev_run_wake(pdev))
-		mei_txe_set_pm_domain(dev);
+	 * TXE maps runtime suspend/resume to own power gating states,
+	 * hence we need to go around native PCI runtime service which
+	 * eventually brings the device into D3cold/hot state.
+	 * But the TXE device cannot wake up from D3 unlike from own
+	 * power gating. To get around PCI device native runtime pm,
+	 * TXE uses runtime pm domain handlers which take precedence.
+	 */
+	mei_txe_set_pm_domain(dev);
 
 	pm_runtime_put_noidle(&pdev->dev);
 
@@ -186,8 +188,7 @@ static void mei_txe_shutdown(struct pci_dev *pdev)
 	dev_dbg(&pdev->dev, "shutdown\n");
 	mei_stop(dev);
 
-	if (!pci_dev_run_wake(pdev))
-		mei_txe_unset_pm_domain(dev);
+	mei_txe_unset_pm_domain(dev);
 
 	mei_disable_interrupts(dev);
 	free_irq(pdev->irq, dev);
@@ -215,8 +216,7 @@ static void mei_txe_remove(struct pci_dev *pdev)
 
 	mei_stop(dev);
 
-	if (!pci_dev_run_wake(pdev))
-		mei_txe_unset_pm_domain(dev);
+	mei_txe_unset_pm_domain(dev);
 
 	mei_disable_interrupts(dev);
 	free_irq(pdev->irq, dev);
@@ -318,15 +318,7 @@ static int mei_txe_pm_runtime_suspend(struct device *device)
 	else
 		ret = -EAGAIN;
 
-	/*
-	 * If everything is okay we're about to enter PCI low
-	 * power state (D3) therefor we need to disable the
-	 * interrupts towards host.
-	 * However if device is not wakeable we do not enter
-	 * D-low state and we need to keep the interrupt kicking
-	 */
-	if (!ret && pci_dev_run_wake(pdev))
-		mei_disable_interrupts(dev);
+	/* keep irq on we are staying in D0 */
 
 	dev_dbg(&pdev->dev, "rpm: txe: runtime suspend ret=%d\n", ret);
 
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index f2b1323ff96c..1a43622b183f 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - Intel MIC Linux driver.
 # Copyright(c) 2013, Intel Corporation.
diff --git a/drivers/misc/mic/card/Makefile b/drivers/misc/mic/card/Makefile
index 6e9675e12a09..921a7e7e0fbd 100644
--- a/drivers/misc/mic/card/Makefile
+++ b/drivers/misc/mic/card/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - Intel MIC Linux driver.
 # Copyright(c) 2013, Intel Corporation.
diff --git a/drivers/misc/mic/cosm/Makefile b/drivers/misc/mic/cosm/Makefile
index b85d4d49df46..97d74cb12030 100644
--- a/drivers/misc/mic/cosm/Makefile
+++ b/drivers/misc/mic/cosm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - Intel MIC Coprocessor State Management (COSM) Driver
 # Copyright(c) 2015, Intel Corporation.
diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
index f3b502333ded..25f153367980 100644
--- a/drivers/misc/mic/host/Makefile
+++ b/drivers/misc/mic/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - Intel MIC Linux driver.
 # Copyright(c) 2013, Intel Corporation.
diff --git a/drivers/misc/mic/scif/Makefile b/drivers/misc/mic/scif/Makefile
index 29cfc3e51ac9..ff372555d118 100644
--- a/drivers/misc/mic/scif/Makefile
+++ b/drivers/misc/mic/scif/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile - SCIF driver.
 # Copyright(c) 2014, Intel Corporation.
diff --git a/drivers/misc/mic/scif/scif_rb.c b/drivers/misc/mic/scif/scif_rb.c
index 637cc4686742..b665757ca89a 100644
--- a/drivers/misc/mic/scif/scif_rb.c
+++ b/drivers/misc/mic/scif/scif_rb.c
@@ -138,7 +138,7 @@ void scif_rb_commit(struct scif_rb *rb)
 	 * the read barrier in scif_rb_count(..)
 	 */
 	wmb();
-	ACCESS_ONCE(*rb->write_ptr) = rb->current_write_offset;
+	WRITE_ONCE(*rb->write_ptr, rb->current_write_offset);
 #ifdef CONFIG_INTEL_MIC_CARD
 	/*
 	 * X100 Si bug: For the case where a Core is performing an EXT_WR
@@ -147,7 +147,7 @@ void scif_rb_commit(struct scif_rb *rb)
 	 * This way, if ordering is violated for the Interrupt Message, it will
 	 * fall just behind the first Posted associated with the first EXT_WR.
 	 */
-	ACCESS_ONCE(*rb->write_ptr) = rb->current_write_offset;
+	WRITE_ONCE(*rb->write_ptr, rb->current_write_offset);
 #endif
 }
 
@@ -210,7 +210,7 @@ void scif_rb_update_read_ptr(struct scif_rb *rb)
 	 * scif_rb_space(..)
 	 */
 	mb();
-	ACCESS_ONCE(*rb->read_ptr) = new_offset;
+	WRITE_ONCE(*rb->read_ptr, new_offset);
 #ifdef CONFIG_INTEL_MIC_CARD
 	/*
 	 * X100 Si Bug: For the case where a Core is performing an EXT_WR
@@ -219,7 +219,7 @@ void scif_rb_update_read_ptr(struct scif_rb *rb)
 	 * This way, if ordering is violated for the Interrupt Message, it will
 	 * fall just behind the first Posted associated with the first EXT_WR.
 	 */
-	ACCESS_ONCE(*rb->read_ptr) = new_offset;
+	WRITE_ONCE(*rb->read_ptr, new_offset);
 #endif
 }
 
diff --git a/drivers/misc/mic/scif/scif_rma_list.c b/drivers/misc/mic/scif/scif_rma_list.c
index e1ef8daedd5a..a036dbb4101e 100644
--- a/drivers/misc/mic/scif/scif_rma_list.c
+++ b/drivers/misc/mic/scif/scif_rma_list.c
@@ -277,7 +277,7 @@ retry:
 		 * Need to restart list traversal if there has been
 		 * an asynchronous list entry deletion.
 		 */
-		if (ACCESS_ONCE(ep->rma_info.async_list_del))
+		if (READ_ONCE(ep->rma_info.async_list_del))
 			goto retry;
 	}
 	mutex_unlock(&ep->rma_info.rma_lock);
diff --git a/drivers/misc/sgi-xp/Makefile b/drivers/misc/sgi-xp/Makefile
index 4fc40d8e1bcc..bbb622c19c06 100644
--- a/drivers/misc/sgi-xp/Makefile
+++ b/drivers/misc/sgi-xp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for SGI's XP devices.
 #
diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 7f327121e6d7..0c775d6fcf59 100644
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -172,9 +172,9 @@ struct xpc_arch_operations xpc_arch_ops;
  * Timer function to enforce the timelimit on the partition disengage.
  */
 static void
-xpc_timeout_partition_disengage(unsigned long data)
+xpc_timeout_partition_disengage(struct timer_list *t)
 {
-	struct xpc_partition *part = (struct xpc_partition *)data;
+	struct xpc_partition *part = from_timer(part, t, disengage_timer);
 
 	DBUG_ON(time_is_after_jiffies(part->disengage_timeout));
 
@@ -190,7 +190,7 @@ xpc_timeout_partition_disengage(unsigned long data)
  * specify when the next timeout should occur.
  */
 static void
-xpc_hb_beater(unsigned long dummy)
+xpc_hb_beater(struct timer_list *unused)
 {
 	xpc_arch_ops.increment_heartbeat();
 
@@ -205,8 +205,7 @@ static void
 xpc_start_hb_beater(void)
 {
 	xpc_arch_ops.heartbeat_init();
-	init_timer(&xpc_hb_timer);
-	xpc_hb_timer.function = xpc_hb_beater;
+	timer_setup(&xpc_hb_timer, xpc_hb_beater, 0);
 	xpc_hb_beater(0);
 }
 
@@ -931,10 +930,8 @@ xpc_setup_partitions(void)
 		part->act_state = XPC_P_AS_INACTIVE;
 		XPC_SET_REASON(part, 0, 0);
 
-		init_timer(&part->disengage_timer);
-		part->disengage_timer.function =
-		    xpc_timeout_partition_disengage;
-		part->disengage_timer.data = (unsigned long)part;
+		timer_setup(&part->disengage_timer,
+			    xpc_timeout_partition_disengage, 0);
 
 		part->setup_state = XPC_P_SS_UNSET;
 		init_waitqueue_head(&part->teardown_wq);
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c
index 7d71c04fc938..5a12d2a54049 100644
--- a/drivers/misc/sgi-xp/xpc_sn2.c
+++ b/drivers/misc/sgi-xp/xpc_sn2.c
@@ -323,16 +323,16 @@ xpc_handle_notify_IRQ_sn2(int irq, void *dev_id)
  * was received.
  */
 static void
-xpc_check_for_dropped_notify_IRQ_sn2(struct xpc_partition *part)
+xpc_check_for_dropped_notify_IRQ_sn2(struct timer_list *t)
 {
-	struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
+	struct xpc_partition *part =
+		from_timer(part, t, sn.sn2.dropped_notify_IRQ_timer);
 
 	if (xpc_part_ref(part)) {
 		xpc_check_for_sent_chctl_flags_sn2(part);
 
-		part_sn2->dropped_notify_IRQ_timer.expires = jiffies +
-		    XPC_DROPPED_NOTIFY_IRQ_WAIT_INTERVAL;
-		add_timer(&part_sn2->dropped_notify_IRQ_timer);
+		t->expires = jiffies + XPC_DROPPED_NOTIFY_IRQ_WAIT_INTERVAL;
+		add_timer(t);
 		xpc_part_deref(part);
 	}
 }
@@ -1232,10 +1232,7 @@ xpc_setup_ch_structures_sn2(struct xpc_partition *part)
 
 	/* Setup a timer to check for dropped notify IRQs */
 	timer = &part_sn2->dropped_notify_IRQ_timer;
-	init_timer(timer);
-	timer->function =
-	    (void (*)(unsigned long))xpc_check_for_dropped_notify_IRQ_sn2;
-	timer->data = (unsigned long)part;
+	timer_setup(timer, xpc_check_for_dropped_notify_IRQ_sn2, 0);
 	timer->expires = jiffies + XPC_DROPPED_NOTIFY_IRQ_WAIT_INTERVAL;
 	add_timer(timer);
 
diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
deleted file mode 100644
index f5456fb7d773..000000000000
--- a/drivers/misc/ti_dac7512.c
+++ /dev/null
@@ -1,103 +0,0 @@
-/*
- *  dac7512.c - Linux kernel module for
- * 	Texas Instruments DAC7512
- *
- *  Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/module.h>
-#include <linux/spi/spi.h>
-#include <linux/of.h>
-
-static ssize_t dac7512_store_val(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf, size_t count)
-{
-	struct spi_device *spi = to_spi_device(dev);
-	unsigned char tmp[2];
-	unsigned long val;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	tmp[0] = val >> 8;
-	tmp[1] = val & 0xff;
-	spi_write(spi, tmp, sizeof(tmp));
-	return count;
-}
-
-static DEVICE_ATTR(value, S_IWUSR, NULL, dac7512_store_val);
-
-static struct attribute *dac7512_attributes[] = {
-	&dev_attr_value.attr,
-	NULL
-};
-
-static const struct attribute_group dac7512_attr_group = {
-	.attrs = dac7512_attributes,
-};
-
-static int dac7512_probe(struct spi_device *spi)
-{
-	int ret;
-
-	spi->bits_per_word = 8;
-	spi->mode = SPI_MODE_0;
-	ret = spi_setup(spi);
-	if (ret < 0)
-		return ret;
-
-	return sysfs_create_group(&spi->dev.kobj, &dac7512_attr_group);
-}
-
-static int dac7512_remove(struct spi_device *spi)
-{
-	sysfs_remove_group(&spi->dev.kobj, &dac7512_attr_group);
-	return 0;
-}
-
-static const struct spi_device_id dac7512_id_table[] = {
-	{ "dac7512", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(spi, dac7512_id_table);
-
-#ifdef CONFIG_OF
-static const struct of_device_id dac7512_of_match[] = {
-	{ .compatible = "ti,dac7512", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, dac7512_of_match);
-#endif
-
-static struct spi_driver dac7512_driver = {
-	.driver = {
-		.name	= "dac7512",
-		.of_match_table = of_match_ptr(dac7512_of_match),
-	},
-	.probe	= dac7512_probe,
-	.remove	= dac7512_remove,
-	.id_table = dac7512_id_table,
-};
-
-module_spi_driver(dac7512_driver);
-
-MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
-MODULE_DESCRIPTION("DAC7512 16-bit DAC");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/vmw_balloon.c b/drivers/misc/vmw_balloon.c
index 1e688bfec567..9047c0a529b2 100644
--- a/drivers/misc/vmw_balloon.c
+++ b/drivers/misc/vmw_balloon.c
@@ -1271,7 +1271,7 @@ static int __init vmballoon_init(void)
 	 * Check if we are running on VMware's hypervisor and bail out
 	 * if we are not.
 	 */
-	if (x86_hyper != &x86_hyper_vmware)
+	if (x86_hyper_type != X86_HYPER_VMWARE)
 		return -ENODEV;
 
 	for (is_2m_pages = 0; is_2m_pages < VMW_BALLOON_NUM_PAGE_SIZES;
diff --git a/drivers/mmc/core/Makefile b/drivers/mmc/core/Makefile
index 7e3ed1aeada2..abba078f7f49 100644
--- a/drivers/mmc/core/Makefile
+++ b/drivers/mmc/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel mmc core.
 #
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 29fc1e662891..ea80ff4cd7f9 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -28,6 +28,7 @@
 #include <linux/hdreg.h>
 #include <linux/kdev_t.h>
 #include <linux/blkdev.h>
+#include <linux/cdev.h>
 #include <linux/mutex.h>
 #include <linux/scatterlist.h>
 #include <linux/string_helpers.h>
@@ -86,6 +87,7 @@ static int max_devices;
 #define MAX_DEVICES 256
 
 static DEFINE_IDA(mmc_blk_ida);
+static DEFINE_IDA(mmc_rpmb_ida);
 
 /*
  * There is one mmc_blk_data per slot.
@@ -96,6 +98,7 @@ struct mmc_blk_data {
 	struct gendisk	*disk;
 	struct mmc_queue queue;
 	struct list_head part;
+	struct list_head rpmbs;
 
 	unsigned int	flags;
 #define MMC_BLK_CMD23	(1 << 0)	/* Can do SET_BLOCK_COUNT for multiblock */
@@ -121,6 +124,32 @@ struct mmc_blk_data {
 	int	area_type;
 };
 
+/* Device type for RPMB character devices */
+static dev_t mmc_rpmb_devt;
+
+/* Bus type for RPMB character devices */
+static struct bus_type mmc_rpmb_bus_type = {
+	.name = "mmc_rpmb",
+};
+
+/**
+ * struct mmc_rpmb_data - special RPMB device type for these areas
+ * @dev: the device for the RPMB area
+ * @chrdev: character device for the RPMB area
+ * @id: unique device ID number
+ * @part_index: partition index (0 on first)
+ * @md: parent MMC block device
+ * @node: list item, so we can put this device on a list
+ */
+struct mmc_rpmb_data {
+	struct device dev;
+	struct cdev chrdev;
+	int id;
+	unsigned int part_index;
+	struct mmc_blk_data *md;
+	struct list_head node;
+};
+
 static DEFINE_MUTEX(open_lock);
 
 module_param(perdev_minors, int, 0444);
@@ -299,6 +328,7 @@ struct mmc_blk_ioc_data {
 	struct mmc_ioc_cmd ic;
 	unsigned char *buf;
 	u64 buf_bytes;
+	struct mmc_rpmb_data *rpmb;
 };
 
 static struct mmc_blk_ioc_data *mmc_blk_ioctl_copy_from_user(
@@ -437,14 +467,25 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
 	struct mmc_request mrq = {};
 	struct scatterlist sg;
 	int err;
-	bool is_rpmb = false;
+	unsigned int target_part;
 	u32 status = 0;
 
 	if (!card || !md || !idata)
 		return -EINVAL;
 
-	if (md->area_type & MMC_BLK_DATA_AREA_RPMB)
-		is_rpmb = true;
+	/*
+	 * The RPMB accesses comes in from the character device, so we
+	 * need to target these explicitly. Else we just target the
+	 * partition type for the block device the ioctl() was issued
+	 * on.
+	 */
+	if (idata->rpmb) {
+		/* Support multiple RPMB partitions */
+		target_part = idata->rpmb->part_index;
+		target_part |= EXT_CSD_PART_CONFIG_ACC_RPMB;
+	} else {
+		target_part = md->part_type;
+	}
 
 	cmd.opcode = idata->ic.opcode;
 	cmd.arg = idata->ic.arg;
@@ -488,7 +529,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
 
 	mrq.cmd = &cmd;
 
-	err = mmc_blk_part_switch(card, md->part_type);
+	err = mmc_blk_part_switch(card, target_part);
 	if (err)
 		return err;
 
@@ -498,7 +539,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
 			return err;
 	}
 
-	if (is_rpmb) {
+	if (idata->rpmb) {
 		err = mmc_set_blockcount(card, data.blocks,
 			idata->ic.write_flag & (1 << 31));
 		if (err)
@@ -538,7 +579,7 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
 
 	memcpy(&(idata->ic.response), cmd.resp, sizeof(cmd.resp));
 
-	if (is_rpmb) {
+	if (idata->rpmb) {
 		/*
 		 * Ensure RPMB command has completed by polling CMD13
 		 * "Send Status".
@@ -554,7 +595,8 @@ static int __mmc_blk_ioctl_cmd(struct mmc_card *card, struct mmc_blk_data *md,
 }
 
 static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md,
-			     struct mmc_ioc_cmd __user *ic_ptr)
+			     struct mmc_ioc_cmd __user *ic_ptr,
+			     struct mmc_rpmb_data *rpmb)
 {
 	struct mmc_blk_ioc_data *idata;
 	struct mmc_blk_ioc_data *idatas[1];
@@ -566,6 +608,8 @@ static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md,
 	idata = mmc_blk_ioctl_copy_from_user(ic_ptr);
 	if (IS_ERR(idata))
 		return PTR_ERR(idata);
+	/* This will be NULL on non-RPMB ioctl():s */
+	idata->rpmb = rpmb;
 
 	card = md->queue.card;
 	if (IS_ERR(card)) {
@@ -581,7 +625,8 @@ static int mmc_blk_ioctl_cmd(struct mmc_blk_data *md,
 		idata->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
 		__GFP_RECLAIM);
 	idatas[0] = idata;
-	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL;
+	req_to_mmc_queue_req(req)->drv_op =
+		rpmb ? MMC_DRV_OP_IOCTL_RPMB : MMC_DRV_OP_IOCTL;
 	req_to_mmc_queue_req(req)->drv_op_data = idatas;
 	req_to_mmc_queue_req(req)->ioc_count = 1;
 	blk_execute_rq(mq->queue, NULL, req, 0);
@@ -596,7 +641,8 @@ cmd_done:
 }
 
 static int mmc_blk_ioctl_multi_cmd(struct mmc_blk_data *md,
-				   struct mmc_ioc_multi_cmd __user *user)
+				   struct mmc_ioc_multi_cmd __user *user,
+				   struct mmc_rpmb_data *rpmb)
 {
 	struct mmc_blk_ioc_data **idata = NULL;
 	struct mmc_ioc_cmd __user *cmds = user->cmds;
@@ -627,6 +673,8 @@ static int mmc_blk_ioctl_multi_cmd(struct mmc_blk_data *md,
 			num_of_cmds = i;
 			goto cmd_err;
 		}
+		/* This will be NULL on non-RPMB ioctl():s */
+		idata[i]->rpmb = rpmb;
 	}
 
 	card = md->queue.card;
@@ -643,7 +691,8 @@ static int mmc_blk_ioctl_multi_cmd(struct mmc_blk_data *md,
 	req = blk_get_request(mq->queue,
 		idata[0]->ic.write_flag ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN,
 		__GFP_RECLAIM);
-	req_to_mmc_queue_req(req)->drv_op = MMC_DRV_OP_IOCTL;
+	req_to_mmc_queue_req(req)->drv_op =
+		rpmb ? MMC_DRV_OP_IOCTL_RPMB : MMC_DRV_OP_IOCTL;
 	req_to_mmc_queue_req(req)->drv_op_data = idata;
 	req_to_mmc_queue_req(req)->ioc_count = num_of_cmds;
 	blk_execute_rq(mq->queue, NULL, req, 0);
@@ -691,7 +740,8 @@ static int mmc_blk_ioctl(struct block_device *bdev, fmode_t mode,
 		if (!md)
 			return -EINVAL;
 		ret = mmc_blk_ioctl_cmd(md,
-					(struct mmc_ioc_cmd __user *)arg);
+					(struct mmc_ioc_cmd __user *)arg,
+					NULL);
 		mmc_blk_put(md);
 		return ret;
 	case MMC_IOC_MULTI_CMD:
@@ -702,7 +752,8 @@ static int mmc_blk_ioctl(struct block_device *bdev, fmode_t mode,
 		if (!md)
 			return -EINVAL;
 		ret = mmc_blk_ioctl_multi_cmd(md,
-					(struct mmc_ioc_multi_cmd __user *)arg);
+					(struct mmc_ioc_multi_cmd __user *)arg,
+					NULL);
 		mmc_blk_put(md);
 		return ret;
 	default:
@@ -1152,18 +1203,6 @@ static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type)
 	md->reset_done &= ~type;
 }
 
-int mmc_access_rpmb(struct mmc_queue *mq)
-{
-	struct mmc_blk_data *md = mq->blkdata;
-	/*
-	 * If this is a RPMB partition access, return ture
-	 */
-	if (md && md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB)
-		return true;
-
-	return false;
-}
-
 /*
  * The non-block commands come back from the block layer after it queued it and
  * processed it with all other requests and then they get issued in this
@@ -1174,17 +1213,19 @@ static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
 	struct mmc_queue_req *mq_rq;
 	struct mmc_card *card = mq->card;
 	struct mmc_blk_data *md = mq->blkdata;
-	struct mmc_blk_data *main_md = dev_get_drvdata(&card->dev);
 	struct mmc_blk_ioc_data **idata;
+	bool rpmb_ioctl;
 	u8 **ext_csd;
 	u32 status;
 	int ret;
 	int i;
 
 	mq_rq = req_to_mmc_queue_req(req);
+	rpmb_ioctl = (mq_rq->drv_op == MMC_DRV_OP_IOCTL_RPMB);
 
 	switch (mq_rq->drv_op) {
 	case MMC_DRV_OP_IOCTL:
+	case MMC_DRV_OP_IOCTL_RPMB:
 		idata = mq_rq->drv_op_data;
 		for (i = 0, ret = 0; i < mq_rq->ioc_count; i++) {
 			ret = __mmc_blk_ioctl_cmd(card, md, idata[i]);
@@ -1192,8 +1233,8 @@ static void mmc_blk_issue_drv_op(struct mmc_queue *mq, struct request *req)
 				break;
 		}
 		/* Always switch back to main area after RPMB access */
-		if (md->area_type & MMC_BLK_DATA_AREA_RPMB)
-			mmc_blk_part_switch(card, main_md->part_type);
+		if (rpmb_ioctl)
+			mmc_blk_part_switch(card, 0);
 		break;
 	case MMC_DRV_OP_BOOT_WP:
 		ret = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BOOT_WP,
@@ -1534,25 +1575,27 @@ static enum mmc_blk_status mmc_blk_err_check(struct mmc_card *card,
 }
 
 static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
-			      int disable_multi, bool *do_rel_wr,
-			      bool *do_data_tag)
+			      int disable_multi, bool *do_rel_wr_p,
+			      bool *do_data_tag_p)
 {
 	struct mmc_blk_data *md = mq->blkdata;
 	struct mmc_card *card = md->queue.card;
 	struct mmc_blk_request *brq = &mqrq->brq;
 	struct request *req = mmc_queue_req_to_req(mqrq);
+	bool do_rel_wr, do_data_tag;
 
 	/*
 	 * Reliable writes are used to implement Forced Unit Access and
 	 * are supported only on MMCs.
 	 */
-	*do_rel_wr = (req->cmd_flags & REQ_FUA) &&
-		     rq_data_dir(req) == WRITE &&
-		     (md->flags & MMC_BLK_REL_WR);
+	do_rel_wr = (req->cmd_flags & REQ_FUA) &&
+		    rq_data_dir(req) == WRITE &&
+		    (md->flags & MMC_BLK_REL_WR);
 
 	memset(brq, 0, sizeof(struct mmc_blk_request));
 
 	brq->mrq.data = &brq->data;
+	brq->mrq.tag = req->tag;
 
 	brq->stop.opcode = MMC_STOP_TRANSMISSION;
 	brq->stop.arg = 0;
@@ -1567,6 +1610,14 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
 
 	brq->data.blksz = 512;
 	brq->data.blocks = blk_rq_sectors(req);
+	brq->data.blk_addr = blk_rq_pos(req);
+
+	/*
+	 * The command queue supports 2 priorities: "high" (1) and "simple" (0).
+	 * The eMMC will give "high" priority tasks priority over "simple"
+	 * priority tasks. Here we always set "simple" priority by not setting
+	 * MMC_DATA_PRIO.
+	 */
 
 	/*
 	 * The block layer doesn't support all sector count
@@ -1596,18 +1647,23 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
 						brq->data.blocks);
 	}
 
-	if (*do_rel_wr)
+	if (do_rel_wr) {
 		mmc_apply_rel_rw(brq, card, req);
+		brq->data.flags |= MMC_DATA_REL_WR;
+	}
 
 	/*
 	 * Data tag is used only during writing meta data to speed
 	 * up write and any subsequent read of this meta data
 	 */
-	*do_data_tag = card->ext_csd.data_tag_unit_size &&
-		       (req->cmd_flags & REQ_META) &&
-		       (rq_data_dir(req) == WRITE) &&
-		       ((brq->data.blocks * brq->data.blksz) >=
-			card->ext_csd.data_tag_unit_size);
+	do_data_tag = card->ext_csd.data_tag_unit_size &&
+		      (req->cmd_flags & REQ_META) &&
+		      (rq_data_dir(req) == WRITE) &&
+		      ((brq->data.blocks * brq->data.blksz) >=
+		       card->ext_csd.data_tag_unit_size);
+
+	if (do_data_tag)
+		brq->data.flags |= MMC_DATA_DAT_TAG;
 
 	mmc_set_data_timeout(&brq->data, card);
 
@@ -1635,7 +1691,11 @@ static void mmc_blk_data_prep(struct mmc_queue *mq, struct mmc_queue_req *mqrq,
 
 	mqrq->areq.mrq = &brq->mrq;
 
-	mmc_queue_bounce_pre(mqrq);
+	if (do_rel_wr_p)
+		*do_rel_wr_p = do_rel_wr;
+
+	if (do_data_tag_p)
+		*do_data_tag_p = do_data_tag;
 }
 
 static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq,
@@ -1829,7 +1889,6 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
 		brq = &mq_rq->brq;
 		old_req = mmc_queue_req_to_req(mq_rq);
 		type = rq_data_dir(old_req) == READ ? MMC_BLK_READ : MMC_BLK_WRITE;
-		mmc_queue_bounce_post(mq_rq);
 
 		switch (status) {
 		case MMC_BLK_SUCCESS:
@@ -1951,7 +2010,7 @@ void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 
 	if (req && !mq->qcnt)
 		/* claim host only for the first request */
-		mmc_get_card(card);
+		mmc_get_card(card, NULL);
 
 	ret = mmc_blk_part_switch(card, md->part_type);
 	if (ret) {
@@ -2014,7 +2073,7 @@ void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 
 out:
 	if (!mq->qcnt)
-		mmc_put_card(card);
+		mmc_put_card(card, NULL);
 }
 
 static inline int mmc_blk_readonly(struct mmc_card *card)
@@ -2071,6 +2130,7 @@ static struct mmc_blk_data *mmc_blk_alloc_req(struct mmc_card *card,
 
 	spin_lock_init(&md->lock);
 	INIT_LIST_HEAD(&md->part);
+	INIT_LIST_HEAD(&md->rpmbs);
 	md->usage = 1;
 
 	ret = mmc_init_queue(&md->queue, card, &md->lock, subname);
@@ -2189,6 +2249,158 @@ static int mmc_blk_alloc_part(struct mmc_card *card,
 	return 0;
 }
 
+/**
+ * mmc_rpmb_ioctl() - ioctl handler for the RPMB chardev
+ * @filp: the character device file
+ * @cmd: the ioctl() command
+ * @arg: the argument from userspace
+ *
+ * This will essentially just redirect the ioctl()s coming in over to
+ * the main block device spawning the RPMB character device.
+ */
+static long mmc_rpmb_ioctl(struct file *filp, unsigned int cmd,
+			   unsigned long arg)
+{
+	struct mmc_rpmb_data *rpmb = filp->private_data;
+	int ret;
+
+	switch (cmd) {
+	case MMC_IOC_CMD:
+		ret = mmc_blk_ioctl_cmd(rpmb->md,
+					(struct mmc_ioc_cmd __user *)arg,
+					rpmb);
+		break;
+	case MMC_IOC_MULTI_CMD:
+		ret = mmc_blk_ioctl_multi_cmd(rpmb->md,
+					(struct mmc_ioc_multi_cmd __user *)arg,
+					rpmb);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_COMPAT
+static long mmc_rpmb_ioctl_compat(struct file *filp, unsigned int cmd,
+			      unsigned long arg)
+{
+	return mmc_rpmb_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));
+}
+#endif
+
+static int mmc_rpmb_chrdev_open(struct inode *inode, struct file *filp)
+{
+	struct mmc_rpmb_data *rpmb = container_of(inode->i_cdev,
+						  struct mmc_rpmb_data, chrdev);
+
+	get_device(&rpmb->dev);
+	filp->private_data = rpmb;
+	mmc_blk_get(rpmb->md->disk);
+
+	return nonseekable_open(inode, filp);
+}
+
+static int mmc_rpmb_chrdev_release(struct inode *inode, struct file *filp)
+{
+	struct mmc_rpmb_data *rpmb = container_of(inode->i_cdev,
+						  struct mmc_rpmb_data, chrdev);
+
+	put_device(&rpmb->dev);
+	mmc_blk_put(rpmb->md);
+
+	return 0;
+}
+
+static const struct file_operations mmc_rpmb_fileops = {
+	.release = mmc_rpmb_chrdev_release,
+	.open = mmc_rpmb_chrdev_open,
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.unlocked_ioctl = mmc_rpmb_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = mmc_rpmb_ioctl_compat,
+#endif
+};
+
+static void mmc_blk_rpmb_device_release(struct device *dev)
+{
+	struct mmc_rpmb_data *rpmb = dev_get_drvdata(dev);
+
+	ida_simple_remove(&mmc_rpmb_ida, rpmb->id);
+	kfree(rpmb);
+}
+
+static int mmc_blk_alloc_rpmb_part(struct mmc_card *card,
+				   struct mmc_blk_data *md,
+				   unsigned int part_index,
+				   sector_t size,
+				   const char *subname)
+{
+	int devidx, ret;
+	char rpmb_name[DISK_NAME_LEN];
+	char cap_str[10];
+	struct mmc_rpmb_data *rpmb;
+
+	/* This creates the minor number for the RPMB char device */
+	devidx = ida_simple_get(&mmc_rpmb_ida, 0, max_devices, GFP_KERNEL);
+	if (devidx < 0)
+		return devidx;
+
+	rpmb = kzalloc(sizeof(*rpmb), GFP_KERNEL);
+	if (!rpmb) {
+		ida_simple_remove(&mmc_rpmb_ida, devidx);
+		return -ENOMEM;
+	}
+
+	snprintf(rpmb_name, sizeof(rpmb_name),
+		 "mmcblk%u%s", card->host->index, subname ? subname : "");
+
+	rpmb->id = devidx;
+	rpmb->part_index = part_index;
+	rpmb->dev.init_name = rpmb_name;
+	rpmb->dev.bus = &mmc_rpmb_bus_type;
+	rpmb->dev.devt = MKDEV(MAJOR(mmc_rpmb_devt), rpmb->id);
+	rpmb->dev.parent = &card->dev;
+	rpmb->dev.release = mmc_blk_rpmb_device_release;
+	device_initialize(&rpmb->dev);
+	dev_set_drvdata(&rpmb->dev, rpmb);
+	rpmb->md = md;
+
+	cdev_init(&rpmb->chrdev, &mmc_rpmb_fileops);
+	rpmb->chrdev.owner = THIS_MODULE;
+	ret = cdev_device_add(&rpmb->chrdev, &rpmb->dev);
+	if (ret) {
+		pr_err("%s: could not add character device\n", rpmb_name);
+		goto out_put_device;
+	}
+
+	list_add(&rpmb->node, &md->rpmbs);
+
+	string_get_size((u64)size, 512, STRING_UNITS_2,
+			cap_str, sizeof(cap_str));
+
+	pr_info("%s: %s %s partition %u %s, chardev (%d:%d)\n",
+		rpmb_name, mmc_card_id(card),
+		mmc_card_name(card), EXT_CSD_PART_CONFIG_ACC_RPMB, cap_str,
+		MAJOR(mmc_rpmb_devt), rpmb->id);
+
+	return 0;
+
+out_put_device:
+	put_device(&rpmb->dev);
+	return ret;
+}
+
+static void mmc_blk_remove_rpmb_part(struct mmc_rpmb_data *rpmb)
+
+{
+	cdev_device_del(&rpmb->chrdev, &rpmb->dev);
+	put_device(&rpmb->dev);
+}
+
 /* MMC Physical partitions consist of two boot partitions and
  * up to four general purpose partitions.
  * For each partition enabled in EXT_CSD a block device will be allocatedi
@@ -2197,13 +2409,26 @@ static int mmc_blk_alloc_part(struct mmc_card *card,
 
 static int mmc_blk_alloc_parts(struct mmc_card *card, struct mmc_blk_data *md)
 {
-	int idx, ret = 0;
+	int idx, ret;
 
 	if (!mmc_card_mmc(card))
 		return 0;
 
 	for (idx = 0; idx < card->nr_parts; idx++) {
-		if (card->part[idx].size) {
+		if (card->part[idx].area_type & MMC_BLK_DATA_AREA_RPMB) {
+			/*
+			 * RPMB partitions does not provide block access, they
+			 * are only accessed using ioctl():s. Thus create
+			 * special RPMB block devices that do not have a
+			 * backing block queue for these.
+			 */
+			ret = mmc_blk_alloc_rpmb_part(card, md,
+				card->part[idx].part_cfg,
+				card->part[idx].size >> 9,
+				card->part[idx].name);
+			if (ret)
+				return ret;
+		} else if (card->part[idx].size) {
 			ret = mmc_blk_alloc_part(card, md,
 				card->part[idx].part_cfg,
 				card->part[idx].size >> 9,
@@ -2215,7 +2440,7 @@ static int mmc_blk_alloc_parts(struct mmc_card *card, struct mmc_blk_data *md)
 		}
 	}
 
-	return ret;
+	return 0;
 }
 
 static void mmc_blk_remove_req(struct mmc_blk_data *md)
@@ -2252,7 +2477,15 @@ static void mmc_blk_remove_parts(struct mmc_card *card,
 {
 	struct list_head *pos, *q;
 	struct mmc_blk_data *part_md;
+	struct mmc_rpmb_data *rpmb;
 
+	/* Remove RPMB partitions */
+	list_for_each_safe(pos, q, &md->rpmbs) {
+		rpmb = list_entry(pos, struct mmc_rpmb_data, node);
+		list_del(pos);
+		mmc_blk_remove_rpmb_part(rpmb);
+	}
+	/* Remove block partitions */
 	list_for_each_safe(pos, q, &md->part) {
 		part_md = list_entry(pos, struct mmc_blk_data, part);
 		list_del(pos);
@@ -2571,6 +2804,17 @@ static int __init mmc_blk_init(void)
 {
 	int res;
 
+	res  = bus_register(&mmc_rpmb_bus_type);
+	if (res < 0) {
+		pr_err("mmcblk: could not register RPMB bus type\n");
+		return res;
+	}
+	res = alloc_chrdev_region(&mmc_rpmb_devt, 0, MAX_DEVICES, "rpmb");
+	if (res < 0) {
+		pr_err("mmcblk: failed to allocate rpmb chrdev region\n");
+		goto out_bus_unreg;
+	}
+
 	if (perdev_minors != CONFIG_MMC_BLOCK_MINORS)
 		pr_info("mmcblk: using %d minors per device\n", perdev_minors);
 
@@ -2578,16 +2822,20 @@ static int __init mmc_blk_init(void)
 
 	res = register_blkdev(MMC_BLOCK_MAJOR, "mmc");
 	if (res)
-		goto out;
+		goto out_chrdev_unreg;
 
 	res = mmc_register_driver(&mmc_driver);
 	if (res)
-		goto out2;
+		goto out_blkdev_unreg;
 
 	return 0;
- out2:
+
+out_blkdev_unreg:
 	unregister_blkdev(MMC_BLOCK_MAJOR, "mmc");
- out:
+out_chrdev_unreg:
+	unregister_chrdev_region(mmc_rpmb_devt, MAX_DEVICES);
+out_bus_unreg:
+	bus_unregister(&mmc_rpmb_bus_type);
 	return res;
 }
 
@@ -2595,6 +2843,7 @@ static void __exit mmc_blk_exit(void)
 {
 	mmc_unregister_driver(&mmc_driver);
 	unregister_blkdev(MMC_BLOCK_MAJOR, "mmc");
+	unregister_chrdev_region(mmc_rpmb_devt, MAX_DEVICES);
 }
 
 module_init(mmc_blk_init);
diff --git a/drivers/mmc/core/block.h b/drivers/mmc/core/block.h
index 860ca7c8df86..5946636101ef 100644
--- a/drivers/mmc/core/block.h
+++ b/drivers/mmc/core/block.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MMC_CORE_BLOCK_H
 #define _MMC_CORE_BLOCK_H
 
diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 301246513a37..a4b49e25fe96 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -369,10 +369,17 @@ int mmc_add_card(struct mmc_card *card)
  */
 void mmc_remove_card(struct mmc_card *card)
 {
+	struct mmc_host *host = card->host;
+
 #ifdef CONFIG_DEBUG_FS
 	mmc_remove_card_debugfs(card);
 #endif
 
+	if (host->cqe_enabled) {
+		host->cqe_ops->cqe_disable(host);
+		host->cqe_enabled = false;
+	}
+
 	if (mmc_card_present(card)) {
 		if (mmc_host_is_spi(card->host)) {
 			pr_info("%s: SPI card removed\n",
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 66c9cf49ad2f..1f0f44f4dd5f 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -266,7 +266,8 @@ static void __mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 	host->ops->request(host, mrq);
 }
 
-static void mmc_mrq_pr_debug(struct mmc_host *host, struct mmc_request *mrq)
+static void mmc_mrq_pr_debug(struct mmc_host *host, struct mmc_request *mrq,
+			     bool cqe)
 {
 	if (mrq->sbc) {
 		pr_debug("<%s: starting CMD%u arg %08x flags %08x>\n",
@@ -275,9 +276,12 @@ static void mmc_mrq_pr_debug(struct mmc_host *host, struct mmc_request *mrq)
 	}
 
 	if (mrq->cmd) {
-		pr_debug("%s: starting CMD%u arg %08x flags %08x\n",
-			 mmc_hostname(host), mrq->cmd->opcode, mrq->cmd->arg,
-			 mrq->cmd->flags);
+		pr_debug("%s: starting %sCMD%u arg %08x flags %08x\n",
+			 mmc_hostname(host), cqe ? "CQE direct " : "",
+			 mrq->cmd->opcode, mrq->cmd->arg, mrq->cmd->flags);
+	} else if (cqe) {
+		pr_debug("%s: starting CQE transfer for tag %d blkaddr %u\n",
+			 mmc_hostname(host), mrq->tag, mrq->data->blk_addr);
 	}
 
 	if (mrq->data) {
@@ -333,7 +337,7 @@ static int mmc_mrq_prep(struct mmc_host *host, struct mmc_request *mrq)
 	return 0;
 }
 
-static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
+int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 {
 	int err;
 
@@ -342,7 +346,7 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 	if (mmc_card_removed(host->card))
 		return -ENOMEDIUM;
 
-	mmc_mrq_pr_debug(host, mrq);
+	mmc_mrq_pr_debug(host, mrq, false);
 
 	WARN_ON(!host->claimed);
 
@@ -355,6 +359,7 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)
 
 	return 0;
 }
+EXPORT_SYMBOL(mmc_start_request);
 
 /*
  * mmc_wait_data_done() - done callback for data request
@@ -482,6 +487,155 @@ void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq)
 }
 EXPORT_SYMBOL(mmc_wait_for_req_done);
 
+/*
+ * mmc_cqe_start_req - Start a CQE request.
+ * @host: MMC host to start the request
+ * @mrq: request to start
+ *
+ * Start the request, re-tuning if needed and it is possible. Returns an error
+ * code if the request fails to start or -EBUSY if CQE is busy.
+ */
+int mmc_cqe_start_req(struct mmc_host *host, struct mmc_request *mrq)
+{
+	int err;
+
+	/*
+	 * CQE cannot process re-tuning commands. Caller must hold retuning
+	 * while CQE is in use.  Re-tuning can happen here only when CQE has no
+	 * active requests i.e. this is the first.  Note, re-tuning will call
+	 * ->cqe_off().
+	 */
+	err = mmc_retune(host);
+	if (err)
+		goto out_err;
+
+	mrq->host = host;
+
+	mmc_mrq_pr_debug(host, mrq, true);
+
+	err = mmc_mrq_prep(host, mrq);
+	if (err)
+		goto out_err;
+
+	err = host->cqe_ops->cqe_request(host, mrq);
+	if (err)
+		goto out_err;
+
+	trace_mmc_request_start(host, mrq);
+
+	return 0;
+
+out_err:
+	if (mrq->cmd) {
+		pr_debug("%s: failed to start CQE direct CMD%u, error %d\n",
+			 mmc_hostname(host), mrq->cmd->opcode, err);
+	} else {
+		pr_debug("%s: failed to start CQE transfer for tag %d, error %d\n",
+			 mmc_hostname(host), mrq->tag, err);
+	}
+	return err;
+}
+EXPORT_SYMBOL(mmc_cqe_start_req);
+
+/**
+ *	mmc_cqe_request_done - CQE has finished processing an MMC request
+ *	@host: MMC host which completed request
+ *	@mrq: MMC request which completed
+ *
+ *	CQE drivers should call this function when they have completed
+ *	their processing of a request.
+ */
+void mmc_cqe_request_done(struct mmc_host *host, struct mmc_request *mrq)
+{
+	mmc_should_fail_request(host, mrq);
+
+	/* Flag re-tuning needed on CRC errors */
+	if ((mrq->cmd && mrq->cmd->error == -EILSEQ) ||
+	    (mrq->data && mrq->data->error == -EILSEQ))
+		mmc_retune_needed(host);
+
+	trace_mmc_request_done(host, mrq);
+
+	if (mrq->cmd) {
+		pr_debug("%s: CQE req done (direct CMD%u): %d\n",
+			 mmc_hostname(host), mrq->cmd->opcode, mrq->cmd->error);
+	} else {
+		pr_debug("%s: CQE transfer done tag %d\n",
+			 mmc_hostname(host), mrq->tag);
+	}
+
+	if (mrq->data) {
+		pr_debug("%s:     %d bytes transferred: %d\n",
+			 mmc_hostname(host),
+			 mrq->data->bytes_xfered, mrq->data->error);
+	}
+
+	mrq->done(mrq);
+}
+EXPORT_SYMBOL(mmc_cqe_request_done);
+
+/**
+ *	mmc_cqe_post_req - CQE post process of a completed MMC request
+ *	@host: MMC host
+ *	@mrq: MMC request to be processed
+ */
+void mmc_cqe_post_req(struct mmc_host *host, struct mmc_request *mrq)
+{
+	if (host->cqe_ops->cqe_post_req)
+		host->cqe_ops->cqe_post_req(host, mrq);
+}
+EXPORT_SYMBOL(mmc_cqe_post_req);
+
+/* Arbitrary 1 second timeout */
+#define MMC_CQE_RECOVERY_TIMEOUT	1000
+
+/*
+ * mmc_cqe_recovery - Recover from CQE errors.
+ * @host: MMC host to recover
+ *
+ * Recovery consists of stopping CQE, stopping eMMC, discarding the queue in
+ * in eMMC, and discarding the queue in CQE. CQE must call
+ * mmc_cqe_request_done() on all requests. An error is returned if the eMMC
+ * fails to discard its queue.
+ */
+int mmc_cqe_recovery(struct mmc_host *host)
+{
+	struct mmc_command cmd;
+	int err;
+
+	mmc_retune_hold_now(host);
+
+	/*
+	 * Recovery is expected seldom, if at all, but it reduces performance,
+	 * so make sure it is not completely silent.
+	 */
+	pr_warn("%s: running CQE recovery\n", mmc_hostname(host));
+
+	host->cqe_ops->cqe_recovery_start(host);
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.opcode       = MMC_STOP_TRANSMISSION,
+	cmd.flags        = MMC_RSP_R1B | MMC_CMD_AC,
+	cmd.flags       &= ~MMC_RSP_CRC; /* Ignore CRC */
+	cmd.busy_timeout = MMC_CQE_RECOVERY_TIMEOUT,
+	mmc_wait_for_cmd(host, &cmd, 0);
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.opcode       = MMC_CMDQ_TASK_MGMT;
+	cmd.arg          = 1; /* Discard entire queue */
+	cmd.flags        = MMC_RSP_R1B | MMC_CMD_AC;
+	cmd.flags       &= ~MMC_RSP_CRC; /* Ignore CRC */
+	cmd.busy_timeout = MMC_CQE_RECOVERY_TIMEOUT,
+	err = mmc_wait_for_cmd(host, &cmd, 0);
+
+	host->cqe_ops->cqe_recovery_finish(host);
+
+	mmc_retune_release(host);
+
+	return err;
+}
+EXPORT_SYMBOL(mmc_cqe_recovery);
+
 /**
  *	mmc_is_req_done - Determine if a 'cap_cmd_during_tfr' request is done
  *	@host: MMC host
@@ -832,9 +986,36 @@ unsigned int mmc_align_data_size(struct mmc_card *card, unsigned int sz)
 }
 EXPORT_SYMBOL(mmc_align_data_size);
 
+/*
+ * Allow claiming an already claimed host if the context is the same or there is
+ * no context but the task is the same.
+ */
+static inline bool mmc_ctx_matches(struct mmc_host *host, struct mmc_ctx *ctx,
+				   struct task_struct *task)
+{
+	return host->claimer == ctx ||
+	       (!ctx && task && host->claimer->task == task);
+}
+
+static inline void mmc_ctx_set_claimer(struct mmc_host *host,
+				       struct mmc_ctx *ctx,
+				       struct task_struct *task)
+{
+	if (!host->claimer) {
+		if (ctx)
+			host->claimer = ctx;
+		else
+			host->claimer = &host->default_ctx;
+	}
+	if (task)
+		host->claimer->task = task;
+}
+
 /**
  *	__mmc_claim_host - exclusively claim a host
  *	@host: mmc host to claim
+ *	@ctx: context that claims the host or NULL in which case the default
+ *	context will be used
  *	@abort: whether or not the operation should be aborted
  *
  *	Claim a host for a set of operations.  If @abort is non null and
@@ -842,8 +1023,10 @@ EXPORT_SYMBOL(mmc_align_data_size);
  *	that non-zero value without acquiring the lock.  Returns zero
  *	with the lock held otherwise.
  */
-int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
+int __mmc_claim_host(struct mmc_host *host, struct mmc_ctx *ctx,
+		     atomic_t *abort)
 {
+	struct task_struct *task = ctx ? NULL : current;
 	DECLARE_WAITQUEUE(wait, current);
 	unsigned long flags;
 	int stop;
@@ -856,7 +1039,7 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
 	while (1) {
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		stop = abort ? atomic_read(abort) : 0;
-		if (stop || !host->claimed || host->claimer == current)
+		if (stop || !host->claimed || mmc_ctx_matches(host, ctx, task))
 			break;
 		spin_unlock_irqrestore(&host->lock, flags);
 		schedule();
@@ -865,7 +1048,7 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
 	set_current_state(TASK_RUNNING);
 	if (!stop) {
 		host->claimed = 1;
-		host->claimer = current;
+		mmc_ctx_set_claimer(host, ctx, task);
 		host->claim_cnt += 1;
 		if (host->claim_cnt == 1)
 			pm = true;
@@ -900,6 +1083,7 @@ void mmc_release_host(struct mmc_host *host)
 		spin_unlock_irqrestore(&host->lock, flags);
 	} else {
 		host->claimed = 0;
+		host->claimer->task = NULL;
 		host->claimer = NULL;
 		spin_unlock_irqrestore(&host->lock, flags);
 		wake_up(&host->wq);
@@ -913,10 +1097,10 @@ EXPORT_SYMBOL(mmc_release_host);
  * This is a helper function, which fetches a runtime pm reference for the
  * card device and also claims the host.
  */
-void mmc_get_card(struct mmc_card *card)
+void mmc_get_card(struct mmc_card *card, struct mmc_ctx *ctx)
 {
 	pm_runtime_get_sync(&card->dev);
-	mmc_claim_host(card->host);
+	__mmc_claim_host(card->host, ctx, NULL);
 }
 EXPORT_SYMBOL(mmc_get_card);
 
@@ -924,9 +1108,13 @@ EXPORT_SYMBOL(mmc_get_card);
  * This is a helper function, which releases the host and drops the runtime
  * pm reference for the card device.
  */
-void mmc_put_card(struct mmc_card *card)
+void mmc_put_card(struct mmc_card *card, struct mmc_ctx *ctx)
 {
-	mmc_release_host(card->host);
+	struct mmc_host *host = card->host;
+
+	WARN_ON(ctx && host->claimer != ctx);
+
+	mmc_release_host(host);
 	pm_runtime_mark_last_busy(&card->dev);
 	pm_runtime_put_autosuspend(&card->dev);
 }
@@ -1400,6 +1588,16 @@ EXPORT_SYMBOL_GPL(mmc_regulator_set_vqmmc);
 
 #endif /* CONFIG_REGULATOR */
 
+/**
+ * mmc_regulator_get_supply - try to get VMMC and VQMMC regulators for a host
+ * @mmc: the host to regulate
+ *
+ * Returns 0 or errno. errno should be handled, it is either a critical error
+ * or -EPROBE_DEFER. 0 means no critical error but it does not mean all
+ * regulators have been found because they all are optional. If you require
+ * certain regulators, you need to check separately in your driver if they got
+ * populated after calling this function.
+ */
 int mmc_regulator_get_supply(struct mmc_host *mmc)
 {
 	struct device *dev = mmc_dev(mmc);
@@ -1484,11 +1682,33 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage)
 
 }
 
+int mmc_host_set_uhs_voltage(struct mmc_host *host)
+{
+	u32 clock;
+
+	/*
+	 * During a signal voltage level switch, the clock must be gated
+	 * for 5 ms according to the SD spec
+	 */
+	clock = host->ios.clock;
+	host->ios.clock = 0;
+	mmc_set_ios(host);
+
+	if (mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180))
+		return -EAGAIN;
+
+	/* Keep clock gated for at least 10 ms, though spec only says 5 ms */
+	mmc_delay(10);
+	host->ios.clock = clock;
+	mmc_set_ios(host);
+
+	return 0;
+}
+
 int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr)
 {
 	struct mmc_command cmd = {};
 	int err = 0;
-	u32 clock;
 
 	/*
 	 * If we cannot switch voltages, return failure so the caller
@@ -1520,15 +1740,8 @@ int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr)
 		err = -EAGAIN;
 		goto power_cycle;
 	}
-	/*
-	 * During a signal voltage level switch, the clock must be gated
-	 * for 5 ms according to the SD spec
-	 */
-	clock = host->ios.clock;
-	host->ios.clock = 0;
-	mmc_set_ios(host);
 
-	if (mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180)) {
+	if (mmc_host_set_uhs_voltage(host)) {
 		/*
 		 * Voltages may not have been switched, but we've already
 		 * sent CMD11, so a power cycle is required anyway
@@ -1537,11 +1750,6 @@ int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr)
 		goto power_cycle;
 	}
 
-	/* Keep clock gated for at least 10 ms, though spec only says 5 ms */
-	mmc_delay(10);
-	host->ios.clock = clock;
-	mmc_set_ios(host);
-
 	/* Wait for at least 1 ms according to spec */
 	mmc_delay(1);
 
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index ca861091a776..71e6c6d7ceb7 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -49,6 +49,7 @@ void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
 void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
 int mmc_set_uhs_voltage(struct mmc_host *host, u32 ocr);
+int mmc_host_set_uhs_voltage(struct mmc_host *host);
 int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
@@ -107,6 +108,8 @@ static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { }
 void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq);
 bool mmc_is_req_done(struct mmc_host *host, struct mmc_request *mrq);
 
+int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq);
+
 struct mmc_async_req;
 
 struct mmc_async_req *mmc_start_areq(struct mmc_host *host,
@@ -128,10 +131,11 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen);
 int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount,
 			bool is_rel_write);
 
-int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
+int __mmc_claim_host(struct mmc_host *host, struct mmc_ctx *ctx,
+		     atomic_t *abort);
 void mmc_release_host(struct mmc_host *host);
-void mmc_get_card(struct mmc_card *card);
-void mmc_put_card(struct mmc_card *card);
+void mmc_get_card(struct mmc_card *card, struct mmc_ctx *ctx);
+void mmc_put_card(struct mmc_card *card, struct mmc_ctx *ctx);
 
 /**
  *	mmc_claim_host - exclusively claim a host
@@ -141,7 +145,11 @@ void mmc_put_card(struct mmc_card *card);
  */
 static inline void mmc_claim_host(struct mmc_host *host)
 {
-	__mmc_claim_host(host, NULL);
+	__mmc_claim_host(host, NULL, NULL);
 }
 
+int mmc_cqe_start_req(struct mmc_host *host, struct mmc_request *mrq);
+void mmc_cqe_post_req(struct mmc_host *host, struct mmc_request *mrq);
+int mmc_cqe_recovery(struct mmc_host *host);
+
 #endif
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index ad88deb2e8f3..35a9e4fd1a9f 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -111,12 +111,6 @@ void mmc_retune_hold(struct mmc_host *host)
 	host->hold_retune += 1;
 }
 
-void mmc_retune_hold_now(struct mmc_host *host)
-{
-	host->retune_now = 0;
-	host->hold_retune += 1;
-}
-
 void mmc_retune_release(struct mmc_host *host)
 {
 	if (host->hold_retune)
@@ -124,6 +118,7 @@ void mmc_retune_release(struct mmc_host *host)
 	else
 		WARN_ON(1);
 }
+EXPORT_SYMBOL(mmc_retune_release);
 
 int mmc_retune(struct mmc_host *host)
 {
@@ -184,7 +179,7 @@ static void mmc_retune_timer(unsigned long data)
 int mmc_of_parse(struct mmc_host *host)
 {
 	struct device *dev = host->parent;
-	u32 bus_width;
+	u32 bus_width, drv_type;
 	int ret;
 	bool cd_cap_invert, cd_gpio_invert = false;
 	bool ro_cap_invert, ro_gpio_invert = false;
@@ -326,6 +321,15 @@ int mmc_of_parse(struct mmc_host *host)
 	if (device_property_read_bool(dev, "no-mmc"))
 		host->caps2 |= MMC_CAP2_NO_MMC;
 
+	/* Must be after "non-removable" check */
+	if (device_property_read_u32(dev, "fixed-emmc-driver-type", &drv_type) == 0) {
+		if (host->caps & MMC_CAP_NONREMOVABLE)
+			host->fixed_drv_type = drv_type;
+		else
+			dev_err(host->parent,
+				"can't use fixed driver type, media is removable\n");
+	}
+
 	host->dsr_req = !device_property_read_u32(dev, "dsr", &host->dsr);
 	if (host->dsr_req && (host->dsr & ~0xffff)) {
 		dev_err(host->parent,
@@ -398,6 +402,8 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 	host->max_blk_size = 512;
 	host->max_blk_count = PAGE_SIZE / 512;
 
+	host->fixed_drv_type = -EINVAL;
+
 	return host;
 }
 
diff --git a/drivers/mmc/core/host.h b/drivers/mmc/core/host.h
index 77d6f60d1bf9..fb689a1065ed 100644
--- a/drivers/mmc/core/host.h
+++ b/drivers/mmc/core/host.h
@@ -19,12 +19,17 @@ void mmc_unregister_host_class(void);
 void mmc_retune_enable(struct mmc_host *host);
 void mmc_retune_disable(struct mmc_host *host);
 void mmc_retune_hold(struct mmc_host *host);
-void mmc_retune_hold_now(struct mmc_host *host);
 void mmc_retune_release(struct mmc_host *host);
 int mmc_retune(struct mmc_host *host);
 void mmc_retune_pause(struct mmc_host *host);
 void mmc_retune_unpause(struct mmc_host *host);
 
+static inline void mmc_retune_hold_now(struct mmc_host *host)
+{
+	host->retune_now = 0;
+	host->hold_retune += 1;
+}
+
 static inline void mmc_retune_recheck(struct mmc_host *host)
 {
 	if (host->hold_retune <= 1)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index a7eb623f8daa..a552f61060d2 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -780,6 +780,7 @@ MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
 MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
 MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
 MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv);
+MMC_DEV_ATTR(rev, "0x%x\n", card->ext_csd.rev);
 MMC_DEV_ATTR(pre_eol_info, "%02x\n", card->ext_csd.pre_eol_info);
 MMC_DEV_ATTR(life_time, "0x%02x 0x%02x\n",
 	card->ext_csd.device_life_time_est_typ_a,
@@ -838,6 +839,7 @@ static struct attribute *mmc_std_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_oemid.attr,
 	&dev_attr_prv.attr,
+	&dev_attr_rev.attr,
 	&dev_attr_pre_eol_info.attr,
 	&dev_attr_life_time.attr,
 	&dev_attr_serial.attr,
@@ -1286,6 +1288,28 @@ out_err:
 	return err;
 }
 
+static void mmc_select_driver_type(struct mmc_card *card)
+{
+	int card_drv_type, drive_strength, drv_type;
+	int fixed_drv_type = card->host->fixed_drv_type;
+
+	card_drv_type = card->ext_csd.raw_driver_strength |
+			mmc_driver_type_mask(0);
+
+	if (fixed_drv_type >= 0)
+		drive_strength = card_drv_type & mmc_driver_type_mask(fixed_drv_type)
+				 ? fixed_drv_type : 0;
+	else
+		drive_strength = mmc_select_drive_strength(card,
+							   card->ext_csd.hs200_max_dtr,
+							   card_drv_type, &drv_type);
+
+	card->drive_strength = drive_strength;
+
+	if (drv_type)
+		mmc_set_driver_type(card->host, drv_type);
+}
+
 static int mmc_select_hs400es(struct mmc_card *card)
 {
 	struct mmc_host *host = card->host;
@@ -1341,6 +1365,8 @@ static int mmc_select_hs400es(struct mmc_card *card)
 		goto out_err;
 	}
 
+	mmc_select_driver_type(card);
+
 	/* Switch card to HS400 */
 	val = EXT_CSD_TIMING_HS400 |
 	      card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
@@ -1374,23 +1400,6 @@ out_err:
 	return err;
 }
 
-static void mmc_select_driver_type(struct mmc_card *card)
-{
-	int card_drv_type, drive_strength, drv_type;
-
-	card_drv_type = card->ext_csd.raw_driver_strength |
-			mmc_driver_type_mask(0);
-
-	drive_strength = mmc_select_drive_strength(card,
-						   card->ext_csd.hs200_max_dtr,
-						   card_drv_type, &drv_type);
-
-	card->drive_strength = drive_strength;
-
-	if (drv_type)
-		mmc_set_driver_type(card->host, drv_type);
-}
-
 /*
  * For device supporting HS200 mode, the following sequence
  * should be done before executing the tuning process.
@@ -1784,12 +1793,41 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 	}
 
 	/*
+	 * Enable Command Queue if supported. Note that Packed Commands cannot
+	 * be used with Command Queue.
+	 */
+	card->ext_csd.cmdq_en = false;
+	if (card->ext_csd.cmdq_support && host->caps2 & MMC_CAP2_CQE) {
+		err = mmc_cmdq_enable(card);
+		if (err && err != -EBADMSG)
+			goto free_card;
+		if (err) {
+			pr_warn("%s: Enabling CMDQ failed\n",
+				mmc_hostname(card->host));
+			card->ext_csd.cmdq_support = false;
+			card->ext_csd.cmdq_depth = 0;
+			err = 0;
+		}
+	}
+	/*
 	 * In some cases (e.g. RPMB or mmc_test), the Command Queue must be
 	 * disabled for a time, so a flag is needed to indicate to re-enable the
 	 * Command Queue.
 	 */
 	card->reenable_cmdq = card->ext_csd.cmdq_en;
 
+	if (card->ext_csd.cmdq_en && !host->cqe_enabled) {
+		err = host->cqe_ops->cqe_enable(host, card);
+		if (err) {
+			pr_err("%s: Failed to enable CQE, error %d\n",
+				mmc_hostname(host), err);
+		} else {
+			host->cqe_enabled = true;
+			pr_info("%s: Command Queue Engine enabled\n",
+				mmc_hostname(host));
+		}
+	}
+
 	if (!oldcard)
 		host->card = card;
 
@@ -1909,14 +1947,14 @@ static void mmc_detect(struct mmc_host *host)
 {
 	int err;
 
-	mmc_get_card(host->card);
+	mmc_get_card(host->card, NULL);
 
 	/*
 	 * Just check if our card has been removed.
 	 */
 	err = _mmc_detect_card_removed(host);
 
-	mmc_put_card(host->card);
+	mmc_put_card(host->card, NULL);
 
 	if (err) {
 		mmc_remove(host);
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 54686ca4bfb7..908e4db03535 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -977,7 +977,6 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
 	    from_exception)
 		return;
 
-	mmc_claim_host(card->host);
 	if (card->ext_csd.raw_bkops_status >= EXT_CSD_BKOPS_LEVEL_2) {
 		timeout = MMC_OPS_TIMEOUT_MS;
 		use_busy_signal = true;
@@ -995,7 +994,7 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
 		pr_warn("%s: Error %d starting bkops\n",
 			mmc_hostname(card->host), err);
 		mmc_retune_release(card->host);
-		goto out;
+		return;
 	}
 
 	/*
@@ -1007,9 +1006,8 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
 		mmc_card_set_doing_bkops(card);
 	else
 		mmc_retune_release(card->host);
-out:
-	mmc_release_host(card->host);
 }
+EXPORT_SYMBOL(mmc_start_bkops);
 
 /*
  * Flush the cache to the non-volatile storage.
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index affa7370ba82..4f33d277b125 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -23,8 +23,6 @@
 #include "core.h"
 #include "card.h"
 
-#define MMC_QUEUE_BOUNCESZ	65536
-
 /*
  * Prepare a MMC request. This just filters out odd stuff.
  */
@@ -32,7 +30,7 @@ static int mmc_prep_request(struct request_queue *q, struct request *req)
 {
 	struct mmc_queue *mq = q->queuedata;
 
-	if (mq && (mmc_card_removed(mq->card) || mmc_access_rpmb(mq)))
+	if (mq && mmc_card_removed(mq->card))
 		return BLKPREP_KILL;
 
 	req->rq_flags |= RQF_DONTPREP;
@@ -150,26 +148,6 @@ static void mmc_queue_setup_discard(struct request_queue *q,
 		queue_flag_set_unlocked(QUEUE_FLAG_SECERASE, q);
 }
 
-static unsigned int mmc_queue_calc_bouncesz(struct mmc_host *host)
-{
-	unsigned int bouncesz = MMC_QUEUE_BOUNCESZ;
-
-	if (host->max_segs != 1 || (host->caps & MMC_CAP_NO_BOUNCE_BUFF))
-		return 0;
-
-	if (bouncesz > host->max_req_size)
-		bouncesz = host->max_req_size;
-	if (bouncesz > host->max_seg_size)
-		bouncesz = host->max_seg_size;
-	if (bouncesz > host->max_blk_count * 512)
-		bouncesz = host->max_blk_count * 512;
-
-	if (bouncesz <= 512)
-		return 0;
-
-	return bouncesz;
-}
-
 /**
  * mmc_init_request() - initialize the MMC-specific per-request data
  * @q: the request queue
@@ -184,26 +162,9 @@ static int mmc_init_request(struct request_queue *q, struct request *req,
 	struct mmc_card *card = mq->card;
 	struct mmc_host *host = card->host;
 
-	if (card->bouncesz) {
-		mq_rq->bounce_buf = kmalloc(card->bouncesz, gfp);
-		if (!mq_rq->bounce_buf)
-			return -ENOMEM;
-		if (card->bouncesz > 512) {
-			mq_rq->sg = mmc_alloc_sg(1, gfp);
-			if (!mq_rq->sg)
-				return -ENOMEM;
-			mq_rq->bounce_sg = mmc_alloc_sg(card->bouncesz / 512,
-							gfp);
-			if (!mq_rq->bounce_sg)
-				return -ENOMEM;
-		}
-	} else {
-		mq_rq->bounce_buf = NULL;
-		mq_rq->bounce_sg = NULL;
-		mq_rq->sg = mmc_alloc_sg(host->max_segs, gfp);
-		if (!mq_rq->sg)
-			return -ENOMEM;
-	}
+	mq_rq->sg = mmc_alloc_sg(host->max_segs, gfp);
+	if (!mq_rq->sg)
+		return -ENOMEM;
 
 	return 0;
 }
@@ -212,17 +173,33 @@ static void mmc_exit_request(struct request_queue *q, struct request *req)
 {
 	struct mmc_queue_req *mq_rq = req_to_mmc_queue_req(req);
 
-	/* It is OK to kfree(NULL) so this will be smooth */
-	kfree(mq_rq->bounce_sg);
-	mq_rq->bounce_sg = NULL;
-
-	kfree(mq_rq->bounce_buf);
-	mq_rq->bounce_buf = NULL;
-
 	kfree(mq_rq->sg);
 	mq_rq->sg = NULL;
 }
 
+static void mmc_setup_queue(struct mmc_queue *mq, struct mmc_card *card)
+{
+	struct mmc_host *host = card->host;
+	u64 limit = BLK_BOUNCE_HIGH;
+
+	if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
+		limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
+
+	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue);
+	queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, mq->queue);
+	if (mmc_can_erase(card))
+		mmc_queue_setup_discard(mq->queue, card);
+
+	blk_queue_bounce_limit(mq->queue, limit);
+	blk_queue_max_hw_sectors(mq->queue,
+		min(host->max_blk_count, host->max_req_size / 512));
+	blk_queue_max_segments(mq->queue, host->max_segs);
+	blk_queue_max_segment_size(mq->queue, host->max_seg_size);
+
+	/* Initialize thread_sem even if it is not used */
+	sema_init(&mq->thread_sem, 1);
+}
+
 /**
  * mmc_init_queue - initialise a queue structure.
  * @mq: mmc queue
@@ -236,12 +213,8 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
 		   spinlock_t *lock, const char *subname)
 {
 	struct mmc_host *host = card->host;
-	u64 limit = BLK_BOUNCE_HIGH;
 	int ret = -ENOMEM;
 
-	if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
-		limit = (u64)dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
-
 	mq->card = card;
 	mq->queue = blk_alloc_queue(GFP_KERNEL);
 	if (!mq->queue)
@@ -260,25 +233,8 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
 	}
 
 	blk_queue_prep_rq(mq->queue, mmc_prep_request);
-	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, mq->queue);
-	queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, mq->queue);
-	if (mmc_can_erase(card))
-		mmc_queue_setup_discard(mq->queue, card);
-
-	card->bouncesz = mmc_queue_calc_bouncesz(host);
-	if (card->bouncesz) {
-		blk_queue_max_hw_sectors(mq->queue, card->bouncesz / 512);
-		blk_queue_max_segments(mq->queue, card->bouncesz / 512);
-		blk_queue_max_segment_size(mq->queue, card->bouncesz);
-	} else {
-		blk_queue_bounce_limit(mq->queue, limit);
-		blk_queue_max_hw_sectors(mq->queue,
-			min(host->max_blk_count, host->max_req_size / 512));
-		blk_queue_max_segments(mq->queue, host->max_segs);
-		blk_queue_max_segment_size(mq->queue, host->max_seg_size);
-	}
 
-	sema_init(&mq->thread_sem, 1);
+	mmc_setup_queue(mq, card);
 
 	mq->thread = kthread_run(mmc_queue_thread, mq, "mmcqd/%d%s",
 		host->index, subname ? subname : "");
@@ -365,56 +321,7 @@ void mmc_queue_resume(struct mmc_queue *mq)
  */
 unsigned int mmc_queue_map_sg(struct mmc_queue *mq, struct mmc_queue_req *mqrq)
 {
-	unsigned int sg_len;
-	size_t buflen;
-	struct scatterlist *sg;
 	struct request *req = mmc_queue_req_to_req(mqrq);
-	int i;
-
-	if (!mqrq->bounce_buf)
-		return blk_rq_map_sg(mq->queue, req, mqrq->sg);
-
-	sg_len = blk_rq_map_sg(mq->queue, req, mqrq->bounce_sg);
-
-	mqrq->bounce_sg_len = sg_len;
-
-	buflen = 0;
-	for_each_sg(mqrq->bounce_sg, sg, sg_len, i)
-		buflen += sg->length;
-
-	sg_init_one(mqrq->sg, mqrq->bounce_buf, buflen);
-
-	return 1;
-}
-
-/*
- * If writing, bounce the data to the buffer before the request
- * is sent to the host driver
- */
-void mmc_queue_bounce_pre(struct mmc_queue_req *mqrq)
-{
-	if (!mqrq->bounce_buf)
-		return;
-
-	if (rq_data_dir(mmc_queue_req_to_req(mqrq)) != WRITE)
-		return;
-
-	sg_copy_to_buffer(mqrq->bounce_sg, mqrq->bounce_sg_len,
-		mqrq->bounce_buf, mqrq->sg[0].length);
-}
-
-/*
- * If reading, bounce the data from the buffer after the request
- * has been handled by the host driver
- */
-void mmc_queue_bounce_post(struct mmc_queue_req *mqrq)
-{
-	if (!mqrq->bounce_buf)
-		return;
-
-	if (rq_data_dir(mmc_queue_req_to_req(mqrq)) != READ)
-		return;
 
-	sg_copy_from_buffer(mqrq->bounce_sg, mqrq->bounce_sg_len,
-		mqrq->bounce_buf, mqrq->sg[0].length);
+	return blk_rq_map_sg(mq->queue, req, mqrq->sg);
 }
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h
index 04fc89360a7a..547b457c4251 100644
--- a/drivers/mmc/core/queue.h
+++ b/drivers/mmc/core/queue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MMC_QUEUE_H
 #define MMC_QUEUE_H
 
@@ -35,12 +36,14 @@ struct mmc_blk_request {
 /**
  * enum mmc_drv_op - enumerates the operations in the mmc_queue_req
  * @MMC_DRV_OP_IOCTL: ioctl operation
+ * @MMC_DRV_OP_IOCTL_RPMB: RPMB-oriented ioctl operation
  * @MMC_DRV_OP_BOOT_WP: write protect boot partitions
  * @MMC_DRV_OP_GET_CARD_STATUS: get card status
  * @MMC_DRV_OP_GET_EXT_CSD: get the EXT CSD from an eMMC card
  */
 enum mmc_drv_op {
 	MMC_DRV_OP_IOCTL,
+	MMC_DRV_OP_IOCTL_RPMB,
 	MMC_DRV_OP_BOOT_WP,
 	MMC_DRV_OP_GET_CARD_STATUS,
 	MMC_DRV_OP_GET_EXT_CSD,
@@ -49,9 +52,6 @@ enum mmc_drv_op {
 struct mmc_queue_req {
 	struct mmc_blk_request	brq;
 	struct scatterlist	*sg;
-	char			*bounce_buf;
-	struct scatterlist	*bounce_sg;
-	unsigned int		bounce_sg_len;
 	struct mmc_async_req	areq;
 	enum mmc_drv_op		drv_op;
 	int			drv_op_result;
@@ -81,12 +81,7 @@ extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
 extern void mmc_cleanup_queue(struct mmc_queue *);
 extern void mmc_queue_suspend(struct mmc_queue *);
 extern void mmc_queue_resume(struct mmc_queue *);
-
 extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
 				     struct mmc_queue_req *);
-extern void mmc_queue_bounce_pre(struct mmc_queue_req *);
-extern void mmc_queue_bounce_post(struct mmc_queue_req *);
-
-extern int mmc_access_rpmb(struct mmc_queue *);
 
 #endif
diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
index fb725934fa21..f664e9cbc9f8 100644
--- a/drivers/mmc/core/quirks.h
+++ b/drivers/mmc/core/quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  This file contains work-arounds for many known SD/MMC
  *  and SDIO hardware bugs.
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 4fd1620b732d..45bf78f32716 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -908,6 +908,18 @@ unsigned mmc_sd_get_max_clock(struct mmc_card *card)
 	return max_dtr;
 }
 
+static bool mmc_sd_card_using_v18(struct mmc_card *card)
+{
+	/*
+	 * According to the SD spec., the Bus Speed Mode (function group 1) bits
+	 * 2 to 4 are zero if the card is initialized at 3.3V signal level. Thus
+	 * they can be used to determine if the card has already switched to
+	 * 1.8V signaling.
+	 */
+	return card->sw_caps.sd3_bus_mode &
+	       (SD_MODE_UHS_SDR50 | SD_MODE_UHS_SDR104 | SD_MODE_UHS_DDR50);
+}
+
 /*
  * Handle the detection and initialisation of a card.
  *
@@ -921,9 +933,10 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 	int err;
 	u32 cid[4];
 	u32 rocr = 0;
+	bool v18_fixup_failed = false;
 
 	WARN_ON(!host->claimed);
-
+retry:
 	err = mmc_sd_get_cid(host, ocr, cid, &rocr);
 	if (err)
 		return err;
@@ -989,6 +1002,36 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 	if (err)
 		goto free_card;
 
+	/*
+	 * If the card has not been power cycled, it may still be using 1.8V
+	 * signaling. Detect that situation and try to initialize a UHS-I (1.8V)
+	 * transfer mode.
+	 */
+	if (!v18_fixup_failed && !mmc_host_is_spi(host) && mmc_host_uhs(host) &&
+	    mmc_sd_card_using_v18(card) &&
+	    host->ios.signal_voltage != MMC_SIGNAL_VOLTAGE_180) {
+		/*
+		 * Re-read switch information in case it has changed since
+		 * oldcard was initialized.
+		 */
+		if (oldcard) {
+			err = mmc_read_switch(card);
+			if (err)
+				goto free_card;
+		}
+		if (mmc_sd_card_using_v18(card)) {
+			if (mmc_host_set_uhs_voltage(host) ||
+			    mmc_sd_init_uhs_card(card)) {
+				v18_fixup_failed = true;
+				mmc_power_cycle(host, ocr);
+				if (!oldcard)
+					mmc_remove_card(card);
+				goto retry;
+			}
+			goto done;
+		}
+	}
+
 	/* Initialization sequence for UHS-I cards */
 	if (rocr & SD_ROCR_S18A) {
 		err = mmc_sd_init_uhs_card(card);
@@ -1021,7 +1064,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 			mmc_set_bus_width(host, MMC_BUS_WIDTH_4);
 		}
 	}
-
+done:
 	host->card = card;
 	return 0;
 
@@ -1056,14 +1099,14 @@ static void mmc_sd_detect(struct mmc_host *host)
 {
 	int err;
 
-	mmc_get_card(host->card);
+	mmc_get_card(host->card, NULL);
 
 	/*
 	 * Just check if our card has been removed.
 	 */
 	err = _mmc_detect_card_removed(host);
 
-	mmc_put_card(host->card);
+	mmc_put_card(host->card, NULL);
 
 	if (err) {
 		mmc_sd_remove(host);
diff --git a/drivers/mmc/core/sd.h b/drivers/mmc/core/sd.h
index 1ada9808c329..497c026a5c5a 100644
--- a/drivers/mmc/core/sd.h
+++ b/drivers/mmc/core/sd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MMC_CORE_SD_H
 #define _MMC_CORE_SD_H
 
diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index c771843e4c15..7a2eaf8410a3 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -155,7 +155,8 @@ static int sdio_irq_thread(void *_host)
 		 * holding of the host lock does not cover too much work
 		 * that doesn't require that lock to be held.
 		 */
-		ret = __mmc_claim_host(host, &host->sdio_irq_thread_abort);
+		ret = __mmc_claim_host(host, NULL,
+				       &host->sdio_irq_thread_abort);
 		if (ret)
 			break;
 		ret = process_sdio_pending_irqs(host);
diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index 02179ed2a40d..567028c9219a 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -5,7 +5,7 @@
 comment "MMC/SD/SDIO Host Controller Drivers"
 
 config MMC_DEBUG
-	bool "MMC host drivers debugginG"
+	bool "MMC host drivers debugging"
 	depends on MMC != n
 	help
 	  This is an option for use by developers; most people should
@@ -352,6 +352,19 @@ config MMC_MESON_GX
 
 	  If you have a controller with this interface, say Y here.
 
+config MMC_MESON_MX_SDIO
+	tristate "Amlogic Meson6/Meson8/Meson8b SD/MMC Host Controller support"
+	depends on ARCH_MESON || COMPILE_TEST
+	depends on COMMON_CLK
+	depends on HAS_DMA
+	depends on OF
+	help
+	  This selects support for the SD/MMC Host Controller on
+	  Amlogic Meson6, Meson8 and Meson8b SoCs.
+
+	  If you have a controller with this interface, say Y or M here.
+	  If unsure, say N.
+
 config MMC_MOXART
 	tristate "MOXART SD/MMC Host Controller support"
 	depends on ARCH_MOXART && MMC
@@ -429,6 +442,7 @@ config MMC_SDHCI_MSM
 	tristate "Qualcomm SDHCI Controller Support"
 	depends on ARCH_QCOM || (ARM && COMPILE_TEST)
 	depends on MMC_SDHCI_PLTFM
+	select MMC_SDHCI_IO_ACCESSORS
 	help
 	  This selects the Secure Digital Host Controller Interface (SDHCI)
 	  support present in Qualcomm SOCs. The controller supports
@@ -663,7 +677,7 @@ config MMC_CAVIUM_OCTEON
 config MMC_CAVIUM_THUNDERX
 	tristate "Cavium ThunderX SD/MMC Card Interface support"
 	depends on PCI && 64BIT && (ARM64 || COMPILE_TEST)
-	depends on GPIOLIB
+	depends on GPIO_THUNDERX
 	depends on OF_ADDRESS
 	help
 	  This selects Cavium ThunderX SD/MMC Card Interface.
@@ -899,3 +913,15 @@ config MMC_SDHCI_XENON
 	  This selects Marvell Xenon eMMC/SD/SDIO SDHCI.
 	  If you have a controller with this interface, say Y or M here.
 	  If unsure, say N.
+
+config MMC_SDHCI_OMAP
+	tristate "TI SDHCI Controller Support"
+	depends on MMC_SDHCI_PLTFM && OF
+	help
+	  This selects the Secure Digital Host Controller Interface (SDHCI)
+	  support present in TI's DRA7 SOCs. The controller supports
+	  SD/MMC/SDIO devices.
+
+	  If you have a controller with this interface, say Y or M here.
+
+	  If unsure, say N.
diff --git a/drivers/mmc/host/Makefile b/drivers/mmc/host/Makefile
index 303f5cd46cd9..a43cf0d5a5d3 100644
--- a/drivers/mmc/host/Makefile
+++ b/drivers/mmc/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for MMC/SD host controller drivers
 #
@@ -64,6 +65,7 @@ obj-$(CONFIG_MMC_VUB300)	+= vub300.o
 obj-$(CONFIG_MMC_USHC)		+= ushc.o
 obj-$(CONFIG_MMC_WMT)		+= wmt-sdmmc.o
 obj-$(CONFIG_MMC_MESON_GX)	+= meson-gx-mmc.o
+obj-$(CONFIG_MMC_MESON_MX_SDIO)	+= meson-mx-sdio.o
 obj-$(CONFIG_MMC_MOXART)	+= moxart-mmc.o
 obj-$(CONFIG_MMC_SUNXI)		+= sunxi-mmc.o
 obj-$(CONFIG_MMC_USDHI6ROL0)	+= usdhi6rol0.o
@@ -89,6 +91,7 @@ obj-$(CONFIG_MMC_SDHCI_MSM)		+= sdhci-msm.o
 obj-$(CONFIG_MMC_SDHCI_ST)		+= sdhci-st.o
 obj-$(CONFIG_MMC_SDHCI_MICROCHIP_PIC32)	+= sdhci-pic32.o
 obj-$(CONFIG_MMC_SDHCI_BRCMSTB)		+= sdhci-brcmstb.o
+obj-$(CONFIG_MMC_SDHCI_OMAP)		+= sdhci-omap.o
 
 ifeq ($(CONFIG_CB710_DEBUG),y)
 	CFLAGS-cb710-mmc	+= -DDEBUG
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 0a0ebf3a096d..e55f3932d580 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -732,11 +732,11 @@ static inline unsigned int atmci_convert_chksize(struct atmel_mci *host,
 		return 0;
 }
 
-static void atmci_timeout_timer(unsigned long data)
+static void atmci_timeout_timer(struct timer_list *t)
 {
 	struct atmel_mci *host;
 
-	host = (struct atmel_mci *)data;
+	host = from_timer(host, t, timer);
 
 	dev_dbg(&host->pdev->dev, "software timeout\n");
 
@@ -1661,9 +1661,9 @@ static void atmci_command_complete(struct atmel_mci *host,
 		cmd->error = 0;
 }
 
-static void atmci_detect_change(unsigned long data)
+static void atmci_detect_change(struct timer_list *t)
 {
-	struct atmel_mci_slot	*slot = (struct atmel_mci_slot *)data;
+	struct atmel_mci_slot	*slot = from_timer(slot, t, detect_timer);
 	bool			present;
 	bool			present_old;
 
@@ -2349,8 +2349,7 @@ static int atmci_init_slot(struct atmel_mci *host,
 	if (gpio_is_valid(slot->detect_pin)) {
 		int ret;
 
-		setup_timer(&slot->detect_timer, atmci_detect_change,
-				(unsigned long)slot);
+		timer_setup(&slot->detect_timer, atmci_detect_change, 0);
 
 		ret = request_irq(gpio_to_irq(slot->detect_pin),
 				atmci_detect_interrupt,
@@ -2563,7 +2562,7 @@ static int atmci_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, host);
 
-	setup_timer(&host->timer, atmci_timeout_timer, (unsigned long)host);
+	timer_setup(&host->timer, atmci_timeout_timer, 0);
 
 	pm_runtime_get_noresume(&pdev->dev);
 	pm_runtime_set_active(&pdev->dev);
diff --git a/drivers/mmc/host/cavium-thunderx.c b/drivers/mmc/host/cavium-thunderx.c
index b9cc95998799..eee08d81b242 100644
--- a/drivers/mmc/host/cavium-thunderx.c
+++ b/drivers/mmc/host/cavium-thunderx.c
@@ -7,6 +7,7 @@
  *
  * Copyright (C) 2016 Cavium Inc.
  */
+#include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
 #include <linux/mmc/mmc.h>
@@ -149,8 +150,11 @@ error:
 	for (i = 0; i < CAVIUM_MAX_MMC; i++) {
 		if (host->slot[i])
 			cvm_mmc_of_slot_remove(host->slot[i]);
-		if (host->slot_pdev[i])
+		if (host->slot_pdev[i]) {
+			get_device(&host->slot_pdev[i]->dev);
 			of_platform_device_destroy(&host->slot_pdev[i]->dev, NULL);
+			put_device(&host->slot_pdev[i]->dev);
+		}
 	}
 	clk_disable_unprepare(host->clk);
 	return ret;
diff --git a/drivers/mmc/host/cavium.c b/drivers/mmc/host/cavium.c
index 27fb625cbcf3..ed5cefb83768 100644
--- a/drivers/mmc/host/cavium.c
+++ b/drivers/mmc/host/cavium.c
@@ -967,7 +967,7 @@ static int cvm_mmc_of_parse(struct device *dev, struct cvm_mmc_slot *slot)
 	}
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		return ret;
 	/*
 	 * Legacy Octeon firmware has no regulator entry, fall-back to
@@ -1038,7 +1038,7 @@ int cvm_mmc_of_slot_probe(struct device *dev, struct cvm_mmc_host *host)
 	 */
 	mmc->caps |= MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
 		     MMC_CAP_ERASE | MMC_CAP_CMD23 | MMC_CAP_POWER_OFF_CARD |
-		     MMC_CAP_3_3V_DDR | MMC_CAP_NO_BOUNCE_BUFF;
+		     MMC_CAP_3_3V_DDR;
 
 	if (host->use_sg)
 		mmc->max_segs = 16;
diff --git a/drivers/mmc/host/dw_mmc-k3.c b/drivers/mmc/host/dw_mmc-k3.c
index 64cda84b2302..73fd75c3c824 100644
--- a/drivers/mmc/host/dw_mmc-k3.c
+++ b/drivers/mmc/host/dw_mmc-k3.c
@@ -75,7 +75,7 @@ struct hs_timing {
 	u32 smpl_phase_min;
 };
 
-struct hs_timing hs_timing_cfg[TIMING_MODE][TIMING_CFG_NUM] = {
+static struct hs_timing hs_timing_cfg[TIMING_MODE][TIMING_CFG_NUM] = {
 	{ /* reserved */ },
 	{ /* SD */
 		{7, 0, 15, 15,},  /* 0: LEGACY 400k */
diff --git a/drivers/mmc/host/dw_mmc-zx.h b/drivers/mmc/host/dw_mmc-zx.h
index f369997a39ec..09ac52766f14 100644
--- a/drivers/mmc/host/dw_mmc-zx.h
+++ b/drivers/mmc/host/dw_mmc-zx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DW_MMC_ZX_H_
 #define _DW_MMC_ZX_H_
 
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 860313bd952a..0aa39975f33b 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -401,16 +401,37 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
 static inline void dw_mci_set_cto(struct dw_mci *host)
 {
 	unsigned int cto_clks;
+	unsigned int cto_div;
 	unsigned int cto_ms;
+	unsigned long irqflags;
 
 	cto_clks = mci_readl(host, TMOUT) & 0xff;
-	cto_ms = DIV_ROUND_UP(cto_clks, host->bus_hz / 1000);
+	cto_div = (mci_readl(host, CLKDIV) & 0xff) * 2;
+	if (cto_div == 0)
+		cto_div = 1;
+	cto_ms = DIV_ROUND_UP(MSEC_PER_SEC * cto_clks * cto_div, host->bus_hz);
 
 	/* add a bit spare time */
 	cto_ms += 10;
 
-	mod_timer(&host->cto_timer,
-		  jiffies + msecs_to_jiffies(cto_ms) + 1);
+	/*
+	 * The durations we're working with are fairly short so we have to be
+	 * extra careful about synchronization here.  Specifically in hardware a
+	 * command timeout is _at most_ 5.1 ms, so that means we expect an
+	 * interrupt (either command done or timeout) to come rather quickly
+	 * after the mci_writel.  ...but just in case we have a long interrupt
+	 * latency let's add a bit of paranoia.
+	 *
+	 * In general we'll assume that at least an interrupt will be asserted
+	 * in hardware by the time the cto_timer runs.  ...and if it hasn't
+	 * been asserted in hardware by that time then we'll assume it'll never
+	 * come.
+	 */
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+	if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events))
+		mod_timer(&host->cto_timer,
+			jiffies + msecs_to_jiffies(cto_ms) + 1);
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
 }
 
 static void dw_mci_start_command(struct dw_mci *host,
@@ -425,11 +446,11 @@ static void dw_mci_start_command(struct dw_mci *host,
 	wmb(); /* drain writebuffer */
 	dw_mci_wait_while_busy(host, cmd_flags);
 
+	mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START);
+
 	/* response expected command only */
 	if (cmd_flags & SDMMC_CMD_RESP_EXP)
 		dw_mci_set_cto(host);
-
-	mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START);
 }
 
 static inline void send_stop_abort(struct dw_mci *host, struct mmc_data *data)
@@ -796,7 +817,7 @@ static int dw_mci_edmac_start_dma(struct dw_mci *host,
 	struct dma_slave_config cfg;
 	struct dma_async_tx_descriptor *desc = NULL;
 	struct scatterlist *sgl = host->data->sg;
-	const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256};
+	static const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256};
 	u32 sg_elems = host->data->sg_len;
 	u32 fifoth_val;
 	u32 fifo_offset = host->fifo_reg - host->regs;
@@ -1003,7 +1024,7 @@ static int dw_mci_get_cd(struct mmc_host *mmc)
 static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data)
 {
 	unsigned int blksz = data->blksz;
-	const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256};
+	static const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256};
 	u32 fifo_width = 1 << host->data_shift;
 	u32 blksz_depth = blksz / fifo_width, fifoth_val;
 	u32 msize = 0, rx_wmark = 1, tx_wmark, tx_wmark_invers;
@@ -1915,15 +1936,55 @@ static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data)
 static void dw_mci_set_drto(struct dw_mci *host)
 {
 	unsigned int drto_clks;
+	unsigned int drto_div;
 	unsigned int drto_ms;
+	unsigned long irqflags;
 
 	drto_clks = mci_readl(host, TMOUT) >> 8;
-	drto_ms = DIV_ROUND_UP(drto_clks, host->bus_hz / 1000);
+	drto_div = (mci_readl(host, CLKDIV) & 0xff) * 2;
+	if (drto_div == 0)
+		drto_div = 1;
+	drto_ms = DIV_ROUND_UP(MSEC_PER_SEC * drto_clks * drto_div,
+			       host->bus_hz);
 
 	/* add a bit spare time */
 	drto_ms += 10;
 
-	mod_timer(&host->dto_timer, jiffies + msecs_to_jiffies(drto_ms));
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+	if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events))
+		mod_timer(&host->dto_timer,
+			  jiffies + msecs_to_jiffies(drto_ms));
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
+}
+
+static bool dw_mci_clear_pending_cmd_complete(struct dw_mci *host)
+{
+	if (!test_bit(EVENT_CMD_COMPLETE, &host->pending_events))
+		return false;
+
+	/*
+	 * Really be certain that the timer has stopped.  This is a bit of
+	 * paranoia and could only really happen if we had really bad
+	 * interrupt latency and the interrupt routine and timeout were
+	 * running concurrently so that the del_timer() in the interrupt
+	 * handler couldn't run.
+	 */
+	WARN_ON(del_timer_sync(&host->cto_timer));
+	clear_bit(EVENT_CMD_COMPLETE, &host->pending_events);
+
+	return true;
+}
+
+static bool dw_mci_clear_pending_data_complete(struct dw_mci *host)
+{
+	if (!test_bit(EVENT_DATA_COMPLETE, &host->pending_events))
+		return false;
+
+	/* Extra paranoia just like dw_mci_clear_pending_cmd_complete() */
+	WARN_ON(del_timer_sync(&host->dto_timer));
+	clear_bit(EVENT_DATA_COMPLETE, &host->pending_events);
+
+	return true;
 }
 
 static void dw_mci_tasklet_func(unsigned long priv)
@@ -1952,8 +2013,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 
 		case STATE_SENDING_CMD11:
 		case STATE_SENDING_CMD:
-			if (!test_and_clear_bit(EVENT_CMD_COMPLETE,
-						&host->pending_events))
+			if (!dw_mci_clear_pending_cmd_complete(host))
 				break;
 
 			cmd = host->cmd;
@@ -2068,8 +2128,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			/* fall through */
 
 		case STATE_DATA_BUSY:
-			if (!test_and_clear_bit(EVENT_DATA_COMPLETE,
-						&host->pending_events)) {
+			if (!dw_mci_clear_pending_data_complete(host)) {
 				/*
 				 * If data error interrupt comes but data over
 				 * interrupt doesn't come within the given time.
@@ -2122,8 +2181,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			/* fall through */
 
 		case STATE_SENDING_STOP:
-			if (!test_and_clear_bit(EVENT_CMD_COMPLETE,
-						&host->pending_events))
+			if (!dw_mci_clear_pending_cmd_complete(host))
 				break;
 
 			/* CMD error in data command */
@@ -2570,6 +2628,8 @@ done:
 
 static void dw_mci_cmd_interrupt(struct dw_mci *host, u32 status)
 {
+	del_timer(&host->cto_timer);
+
 	if (!host->cmd_status)
 		host->cmd_status = status;
 
@@ -2594,6 +2654,7 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 	struct dw_mci *host = dev_id;
 	u32 pending;
 	struct dw_mci_slot *slot = host->slot;
+	unsigned long irqflags;
 
 	pending = mci_readl(host, MINTSTS); /* read-only mask reg */
 
@@ -2601,8 +2662,6 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		/* Check volt switch first, since it can look like an error */
 		if ((host->state == STATE_SENDING_CMD11) &&
 		    (pending & SDMMC_INT_VOLT_SWITCH)) {
-			unsigned long irqflags;
-
 			mci_writel(host, RINTSTS, SDMMC_INT_VOLT_SWITCH);
 			pending &= ~SDMMC_INT_VOLT_SWITCH;
 
@@ -2618,11 +2677,15 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		}
 
 		if (pending & DW_MCI_CMD_ERROR_FLAGS) {
+			spin_lock_irqsave(&host->irq_lock, irqflags);
+
 			del_timer(&host->cto_timer);
 			mci_writel(host, RINTSTS, DW_MCI_CMD_ERROR_FLAGS);
 			host->cmd_status = pending;
 			smp_wmb(); /* drain writebuffer */
 			set_bit(EVENT_CMD_COMPLETE, &host->pending_events);
+
+			spin_unlock_irqrestore(&host->irq_lock, irqflags);
 		}
 
 		if (pending & DW_MCI_DATA_ERROR_FLAGS) {
@@ -2635,6 +2698,8 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		}
 
 		if (pending & SDMMC_INT_DATA_OVER) {
+			spin_lock_irqsave(&host->irq_lock, irqflags);
+
 			del_timer(&host->dto_timer);
 
 			mci_writel(host, RINTSTS, SDMMC_INT_DATA_OVER);
@@ -2647,6 +2712,8 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 			}
 			set_bit(EVENT_DATA_COMPLETE, &host->pending_events);
 			tasklet_schedule(&host->tasklet);
+
+			spin_unlock_irqrestore(&host->irq_lock, irqflags);
 		}
 
 		if (pending & SDMMC_INT_RXDR) {
@@ -2662,9 +2729,12 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id)
 		}
 
 		if (pending & SDMMC_INT_CMD_DONE) {
-			del_timer(&host->cto_timer);
+			spin_lock_irqsave(&host->irq_lock, irqflags);
+
 			mci_writel(host, RINTSTS, SDMMC_INT_CMD_DONE);
 			dw_mci_cmd_interrupt(host, pending);
+
+			spin_unlock_irqrestore(&host->irq_lock, irqflags);
 		}
 
 		if (pending & SDMMC_INT_CD) {
@@ -2741,7 +2811,7 @@ static int dw_mci_init_slot(struct dw_mci *host)
 
 	/*if there are external regulators, get them*/
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		goto err_host_allocated;
 
 	if (!mmc->ocr_avail)
@@ -2921,9 +2991,9 @@ no_dma:
 	host->use_dma = TRANS_MODE_PIO;
 }
 
-static void dw_mci_cmd11_timer(unsigned long arg)
+static void dw_mci_cmd11_timer(struct timer_list *t)
 {
-	struct dw_mci *host = (struct dw_mci *)arg;
+	struct dw_mci *host = from_timer(host, t, cmd11_timer);
 
 	if (host->state != STATE_SENDING_CMD11) {
 		dev_warn(host->dev, "Unexpected CMD11 timeout\n");
@@ -2935,10 +3005,38 @@ static void dw_mci_cmd11_timer(unsigned long arg)
 	tasklet_schedule(&host->tasklet);
 }
 
-static void dw_mci_cto_timer(unsigned long arg)
+static void dw_mci_cto_timer(struct timer_list *t)
 {
-	struct dw_mci *host = (struct dw_mci *)arg;
+	struct dw_mci *host = from_timer(host, t, cto_timer);
+	unsigned long irqflags;
+	u32 pending;
+
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+
+	/*
+	 * If somehow we have very bad interrupt latency it's remotely possible
+	 * that the timer could fire while the interrupt is still pending or
+	 * while the interrupt is midway through running.  Let's be paranoid
+	 * and detect those two cases.  Note that this is paranoia is somewhat
+	 * justified because in this function we don't actually cancel the
+	 * pending command in the controller--we just assume it will never come.
+	 */
+	pending = mci_readl(host, MINTSTS); /* read-only mask reg */
+	if (pending & (DW_MCI_CMD_ERROR_FLAGS | SDMMC_INT_CMD_DONE)) {
+		/* The interrupt should fire; no need to act but we can warn */
+		dev_warn(host->dev, "Unexpected interrupt latency\n");
+		goto exit;
+	}
+	if (test_bit(EVENT_CMD_COMPLETE, &host->pending_events)) {
+		/* Presumably interrupt handler couldn't delete the timer */
+		dev_warn(host->dev, "CTO timeout when already completed\n");
+		goto exit;
+	}
 
+	/*
+	 * Continued paranoia to make sure we're in the state we expect.
+	 * This paranoia isn't really justified but it seems good to be safe.
+	 */
 	switch (host->state) {
 	case STATE_SENDING_CMD11:
 	case STATE_SENDING_CMD:
@@ -2957,12 +3055,39 @@ static void dw_mci_cto_timer(unsigned long arg)
 			 host->state);
 		break;
 	}
+
+exit:
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
 }
 
-static void dw_mci_dto_timer(unsigned long arg)
+static void dw_mci_dto_timer(struct timer_list *t)
 {
-	struct dw_mci *host = (struct dw_mci *)arg;
+	struct dw_mci *host = from_timer(host, t, dto_timer);
+	unsigned long irqflags;
+	u32 pending;
+
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+
+	/*
+	 * The DTO timer is much longer than the CTO timer, so it's even less
+	 * likely that we'll these cases, but it pays to be paranoid.
+	 */
+	pending = mci_readl(host, MINTSTS); /* read-only mask reg */
+	if (pending & SDMMC_INT_DATA_OVER) {
+		/* The interrupt should fire; no need to act but we can warn */
+		dev_warn(host->dev, "Unexpected data interrupt latency\n");
+		goto exit;
+	}
+	if (test_bit(EVENT_DATA_COMPLETE, &host->pending_events)) {
+		/* Presumably interrupt handler couldn't delete the timer */
+		dev_warn(host->dev, "DTO timeout when already completed\n");
+		goto exit;
+	}
 
+	/*
+	 * Continued paranoia to make sure we're in the state we expect.
+	 * This paranoia isn't really justified but it seems good to be safe.
+	 */
 	switch (host->state) {
 	case STATE_SENDING_DATA:
 	case STATE_DATA_BUSY:
@@ -2977,8 +3102,13 @@ static void dw_mci_dto_timer(unsigned long arg)
 		tasklet_schedule(&host->tasklet);
 		break;
 	default:
+		dev_warn(host->dev, "Unexpected data timeout, state %d\n",
+			 host->state);
 		break;
 	}
+
+exit:
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
 }
 
 #ifdef CONFIG_OF
@@ -3127,14 +3257,9 @@ int dw_mci_probe(struct dw_mci *host)
 		}
 	}
 
-	setup_timer(&host->cmd11_timer,
-		    dw_mci_cmd11_timer, (unsigned long)host);
-
-	setup_timer(&host->cto_timer,
-		    dw_mci_cto_timer, (unsigned long)host);
-
-	setup_timer(&host->dto_timer,
-		    dw_mci_dto_timer, (unsigned long)host);
+	timer_setup(&host->cmd11_timer, dw_mci_cmd11_timer, 0);
+	timer_setup(&host->cto_timer, dw_mci_cto_timer, 0);
+	timer_setup(&host->dto_timer, dw_mci_dto_timer, 0);
 
 	spin_lock_init(&host->lock);
 	spin_lock_init(&host->irq_lock);
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 34474ad731aa..e3124f06a47e 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -74,7 +74,8 @@ struct dw_mci_dma_slave {
  * @stop_abort: The command currently prepared for stoping transfer.
  * @prev_blksz: The former transfer blksz record.
  * @timing: Record of current ios timing.
- * @use_dma: Whether DMA channel is initialized or not.
+ * @use_dma: Which DMA channel is in use for the current transfer, zero
+ *	denotes PIO mode.
  * @using_dma: Whether DMA is in use for the current transfer.
  * @dma_64bit_address: Whether DMA supports 64-bit address mode or not.
  * @sg_dma: Bus address of DMA buffer.
diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 7db8c7a8d38d..712e08d9a45e 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -586,9 +586,9 @@ poll_timeout:
 	return true;
 }
 
-static void jz4740_mmc_timeout(unsigned long data)
+static void jz4740_mmc_timeout(struct timer_list *t)
 {
-	struct jz4740_mmc_host *host = (struct jz4740_mmc_host *)data;
+	struct jz4740_mmc_host *host = from_timer(host, t, timeout_timer);
 
 	if (!test_and_clear_bit(0, &host->waiting))
 		return;
@@ -1036,8 +1036,7 @@ static int jz4740_mmc_probe(struct platform_device* pdev)
 
 	jz4740_mmc_reset(host);
 	jz4740_mmc_clock_disable(host);
-	setup_timer(&host->timeout_timer, jz4740_mmc_timeout,
-			(unsigned long)host);
+	timer_setup(&host->timeout_timer, jz4740_mmc_timeout, 0);
 
 	host->use_dma = true;
 	if (host->use_dma && jz4740_mmc_acquire_dma_channels(host) != 0)
diff --git a/drivers/mmc/host/meson-gx-mmc.c b/drivers/mmc/host/meson-gx-mmc.c
index c885c2d4b904..e0862d3f65b3 100644
--- a/drivers/mmc/host/meson-gx-mmc.c
+++ b/drivers/mmc/host/meson-gx-mmc.c
@@ -531,8 +531,7 @@ static int meson_mmc_clk_init(struct meson_host *host)
 	div->shift = __ffs(CLK_DIV_MASK);
 	div->width = __builtin_popcountl(CLK_DIV_MASK);
 	div->hw.init = &init;
-	div->flags = (CLK_DIVIDER_ONE_BASED |
-		      CLK_DIVIDER_ROUND_CLOSEST);
+	div->flags = CLK_DIVIDER_ONE_BASED;
 
 	clk = devm_clk_register(host->dev, &div->hw);
 	if (WARN_ON(IS_ERR(clk)))
@@ -717,6 +716,22 @@ static int meson_mmc_clk_phase_tuning(struct mmc_host *mmc, u32 opcode,
 static int meson_mmc_execute_tuning(struct mmc_host *mmc, u32 opcode)
 {
 	struct meson_host *host = mmc_priv(mmc);
+	int ret;
+
+	/*
+	 * If this is the initial tuning, try to get a sane Rx starting
+	 * phase before doing the actual tuning.
+	 */
+	if (!mmc->doing_retune) {
+		ret = meson_mmc_clk_phase_tuning(mmc, opcode, host->rx_clk);
+
+		if (ret)
+			return ret;
+	}
+
+	ret = meson_mmc_clk_phase_tuning(mmc, opcode, host->tx_clk);
+	if (ret)
+		return ret;
 
 	return meson_mmc_clk_phase_tuning(mmc, opcode, host->rx_clk);
 }
@@ -746,6 +761,11 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	case MMC_POWER_UP:
 		if (!IS_ERR(mmc->supply.vmmc))
 			mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, ios->vdd);
+
+		/* Reset phases */
+		clk_set_phase(host->rx_clk, 0);
+		clk_set_phase(host->tx_clk, 270);
+
 		break;
 
 	case MMC_POWER_ON:
@@ -759,8 +779,6 @@ static void meson_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 				host->vqmmc_enabled = true;
 		}
 
-		/* Reset rx phase */
-		clk_set_phase(host->rx_clk, 0);
 		break;
 	}
 
@@ -1172,7 +1190,7 @@ static int meson_mmc_probe(struct platform_device *pdev)
 	/* Get regulators and the supported OCR mask */
 	host->vqmmc_enabled = false;
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		goto free_host;
 
 	ret = mmc_of_parse(mmc);
diff --git a/drivers/mmc/host/meson-mx-sdio.c b/drivers/mmc/host/meson-mx-sdio.c
new file mode 100644
index 000000000000..09cb89645d06
--- /dev/null
+++ b/drivers/mmc/host/meson-mx-sdio.c
@@ -0,0 +1,768 @@
+/*
+ * meson-mx-sdio.c - Meson6, Meson8 and Meson8b SDIO/MMC Host Controller
+ *
+ * Copyright (C) 2015 Endless Mobile, Inc.
+ * Author: Carlo Caione <carlo@endlessm.com>
+ * Copyright (C) 2017 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/timer.h>
+#include <linux/types.h>
+
+#include <linux/mmc/host.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/sdio.h>
+#include <linux/mmc/slot-gpio.h>
+
+#define MESON_MX_SDIO_ARGU					0x00
+
+#define MESON_MX_SDIO_SEND					0x04
+	#define MESON_MX_SDIO_SEND_COMMAND_INDEX_MASK		GENMASK(7, 0)
+	#define MESON_MX_SDIO_SEND_CMD_RESP_BITS_MASK		GENMASK(15, 8)
+	#define MESON_MX_SDIO_SEND_RESP_WITHOUT_CRC7		BIT(16)
+	#define MESON_MX_SDIO_SEND_RESP_HAS_DATA		BIT(17)
+	#define MESON_MX_SDIO_SEND_RESP_CRC7_FROM_8		BIT(18)
+	#define MESON_MX_SDIO_SEND_CHECK_DAT0_BUSY		BIT(19)
+	#define MESON_MX_SDIO_SEND_DATA				BIT(20)
+	#define MESON_MX_SDIO_SEND_USE_INT_WINDOW		BIT(21)
+	#define MESON_MX_SDIO_SEND_REPEAT_PACKAGE_TIMES_MASK	GENMASK(31, 24)
+
+#define MESON_MX_SDIO_CONF					0x08
+	#define MESON_MX_SDIO_CONF_CMD_CLK_DIV_SHIFT		0
+	#define MESON_MX_SDIO_CONF_CMD_CLK_DIV_WIDTH		10
+	#define MESON_MX_SDIO_CONF_CMD_DISABLE_CRC		BIT(10)
+	#define MESON_MX_SDIO_CONF_CMD_OUT_AT_POSITIVE_EDGE	BIT(11)
+	#define MESON_MX_SDIO_CONF_CMD_ARGUMENT_BITS_MASK	GENMASK(17, 12)
+	#define MESON_MX_SDIO_CONF_RESP_LATCH_AT_NEGATIVE_EDGE	BIT(18)
+	#define MESON_MX_SDIO_CONF_DATA_LATCH_AT_NEGATIVE_EDGE	BIT(19)
+	#define MESON_MX_SDIO_CONF_BUS_WIDTH			BIT(20)
+	#define MESON_MX_SDIO_CONF_M_ENDIAN_MASK		GENMASK(22, 21)
+	#define MESON_MX_SDIO_CONF_WRITE_NWR_MASK		GENMASK(28, 23)
+	#define MESON_MX_SDIO_CONF_WRITE_CRC_OK_STATUS_MASK	GENMASK(31, 29)
+
+#define MESON_MX_SDIO_IRQS					0x0c
+	#define MESON_MX_SDIO_IRQS_STATUS_STATE_MACHINE_MASK	GENMASK(3, 0)
+	#define MESON_MX_SDIO_IRQS_CMD_BUSY			BIT(4)
+	#define MESON_MX_SDIO_IRQS_RESP_CRC7_OK			BIT(5)
+	#define MESON_MX_SDIO_IRQS_DATA_READ_CRC16_OK		BIT(6)
+	#define MESON_MX_SDIO_IRQS_DATA_WRITE_CRC16_OK		BIT(7)
+	#define MESON_MX_SDIO_IRQS_IF_INT			BIT(8)
+	#define MESON_MX_SDIO_IRQS_CMD_INT			BIT(9)
+	#define MESON_MX_SDIO_IRQS_STATUS_INFO_MASK		GENMASK(15, 12)
+	#define MESON_MX_SDIO_IRQS_TIMING_OUT_INT		BIT(16)
+	#define MESON_MX_SDIO_IRQS_AMRISC_TIMING_OUT_INT_EN	BIT(17)
+	#define MESON_MX_SDIO_IRQS_ARC_TIMING_OUT_INT_EN	BIT(18)
+	#define MESON_MX_SDIO_IRQS_TIMING_OUT_COUNT_MASK	GENMASK(31, 19)
+
+#define MESON_MX_SDIO_IRQC					0x10
+	#define MESON_MX_SDIO_IRQC_ARC_IF_INT_EN		BIT(3)
+	#define MESON_MX_SDIO_IRQC_ARC_CMD_INT_EN		BIT(4)
+	#define MESON_MX_SDIO_IRQC_IF_CONFIG_MASK		GENMASK(7, 6)
+	#define MESON_MX_SDIO_IRQC_FORCE_DATA_CLK		BIT(8)
+	#define MESON_MX_SDIO_IRQC_FORCE_DATA_CMD		BIT(9)
+	#define MESON_MX_SDIO_IRQC_FORCE_DATA_DAT_MASK		GENMASK(10, 13)
+	#define MESON_MX_SDIO_IRQC_SOFT_RESET			BIT(15)
+	#define MESON_MX_SDIO_IRQC_FORCE_HALT			BIT(30)
+	#define MESON_MX_SDIO_IRQC_HALT_HOLE			BIT(31)
+
+#define MESON_MX_SDIO_MULT					0x14
+	#define MESON_MX_SDIO_MULT_PORT_SEL_MASK		GENMASK(1, 0)
+	#define MESON_MX_SDIO_MULT_MEMORY_STICK_ENABLE		BIT(2)
+	#define MESON_MX_SDIO_MULT_MEMORY_STICK_SCLK_ALWAYS	BIT(3)
+	#define MESON_MX_SDIO_MULT_STREAM_ENABLE		BIT(4)
+	#define MESON_MX_SDIO_MULT_STREAM_8BITS_MODE		BIT(5)
+	#define MESON_MX_SDIO_MULT_WR_RD_OUT_INDEX		BIT(8)
+	#define MESON_MX_SDIO_MULT_DAT0_DAT1_SWAPPED		BIT(10)
+	#define MESON_MX_SDIO_MULT_DAT1_DAT0_SWAPPED		BIT(11)
+	#define MESON_MX_SDIO_MULT_RESP_READ_INDEX_MASK		GENMASK(15, 12)
+
+#define MESON_MX_SDIO_ADDR					0x18
+
+#define MESON_MX_SDIO_EXT					0x1c
+	#define MESON_MX_SDIO_EXT_DATA_RW_NUMBER_MASK		GENMASK(29, 16)
+
+#define MESON_MX_SDIO_BOUNCE_REQ_SIZE				(128 * 1024)
+#define MESON_MX_SDIO_RESPONSE_CRC16_BITS			(16 - 1)
+#define MESON_MX_SDIO_MAX_SLOTS					3
+
+struct meson_mx_mmc_host {
+	struct device			*controller_dev;
+
+	struct clk			*parent_clk;
+	struct clk			*core_clk;
+	struct clk_divider		cfg_div;
+	struct clk			*cfg_div_clk;
+	struct clk_fixed_factor		fixed_factor;
+	struct clk			*fixed_factor_clk;
+
+	void __iomem			*base;
+	int				irq;
+	spinlock_t			irq_lock;
+
+	struct timer_list		cmd_timeout;
+
+	unsigned int			slot_id;
+	struct mmc_host			*mmc;
+
+	struct mmc_request		*mrq;
+	struct mmc_command		*cmd;
+	int				error;
+};
+
+static void meson_mx_mmc_mask_bits(struct mmc_host *mmc, char reg, u32 mask,
+				   u32 val)
+{
+	struct meson_mx_mmc_host *host = mmc_priv(mmc);
+	u32 regval;
+
+	regval = readl(host->base + reg);
+	regval &= ~mask;
+	regval |= (val & mask);
+
+	writel(regval, host->base + reg);
+}
+
+static void meson_mx_mmc_soft_reset(struct meson_mx_mmc_host *host)
+{
+	writel(MESON_MX_SDIO_IRQC_SOFT_RESET, host->base + MESON_MX_SDIO_IRQC);
+	udelay(2);
+}
+
+static struct mmc_command *meson_mx_mmc_get_next_cmd(struct mmc_command *cmd)
+{
+	if (cmd->opcode == MMC_SET_BLOCK_COUNT && !cmd->error)
+		return cmd->mrq->cmd;
+	else if (mmc_op_multi(cmd->opcode) &&
+		 (!cmd->mrq->sbc || cmd->error || cmd->data->error))
+		return cmd->mrq->stop;
+	else
+		return NULL;
+}
+
+static void meson_mx_mmc_start_cmd(struct mmc_host *mmc,
+				   struct mmc_command *cmd)
+{
+	struct meson_mx_mmc_host *host = mmc_priv(mmc);
+	unsigned int pack_size;
+	unsigned long irqflags, timeout;
+	u32 mult, send = 0, ext = 0;
+
+	host->cmd = cmd;
+
+	if (cmd->busy_timeout)
+		timeout = msecs_to_jiffies(cmd->busy_timeout);
+	else
+		timeout = msecs_to_jiffies(1000);
+
+	switch (mmc_resp_type(cmd)) {
+	case MMC_RSP_R1:
+	case MMC_RSP_R1B:
+	case MMC_RSP_R3:
+		/* 7 (CMD) + 32 (response) + 7 (CRC) -1 */
+		send |= FIELD_PREP(MESON_MX_SDIO_SEND_CMD_RESP_BITS_MASK, 45);
+		break;
+	case MMC_RSP_R2:
+		/* 7 (CMD) + 120 (response) + 7 (CRC) -1 */
+		send |= FIELD_PREP(MESON_MX_SDIO_SEND_CMD_RESP_BITS_MASK, 133);
+		send |= MESON_MX_SDIO_SEND_RESP_CRC7_FROM_8;
+		break;
+	default:
+		break;
+	}
+
+	if (!(cmd->flags & MMC_RSP_CRC))
+		send |= MESON_MX_SDIO_SEND_RESP_WITHOUT_CRC7;
+
+	if (cmd->flags & MMC_RSP_BUSY)
+		send |= MESON_MX_SDIO_SEND_CHECK_DAT0_BUSY;
+
+	if (cmd->data) {
+		send |= FIELD_PREP(MESON_MX_SDIO_SEND_REPEAT_PACKAGE_TIMES_MASK,
+				   (cmd->data->blocks - 1));
+
+		pack_size = cmd->data->blksz * BITS_PER_BYTE;
+		if (mmc->ios.bus_width == MMC_BUS_WIDTH_4)
+			pack_size += MESON_MX_SDIO_RESPONSE_CRC16_BITS * 4;
+		else
+			pack_size += MESON_MX_SDIO_RESPONSE_CRC16_BITS * 1;
+
+		ext |= FIELD_PREP(MESON_MX_SDIO_EXT_DATA_RW_NUMBER_MASK,
+				  pack_size);
+
+		if (cmd->data->flags & MMC_DATA_WRITE)
+			send |= MESON_MX_SDIO_SEND_DATA;
+		else
+			send |= MESON_MX_SDIO_SEND_RESP_HAS_DATA;
+
+		cmd->data->bytes_xfered = 0;
+	}
+
+	send |= FIELD_PREP(MESON_MX_SDIO_SEND_COMMAND_INDEX_MASK,
+			   (0x40 | cmd->opcode));
+
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+
+	mult = readl(host->base + MESON_MX_SDIO_MULT);
+	mult &= ~MESON_MX_SDIO_MULT_PORT_SEL_MASK;
+	mult |= FIELD_PREP(MESON_MX_SDIO_MULT_PORT_SEL_MASK, host->slot_id);
+	mult |= BIT(31);
+	writel(mult, host->base + MESON_MX_SDIO_MULT);
+
+	/* enable the CMD done interrupt */
+	meson_mx_mmc_mask_bits(mmc, MESON_MX_SDIO_IRQC,
+			       MESON_MX_SDIO_IRQC_ARC_CMD_INT_EN,
+			       MESON_MX_SDIO_IRQC_ARC_CMD_INT_EN);
+
+	/* clear pending interrupts */
+	meson_mx_mmc_mask_bits(mmc, MESON_MX_SDIO_IRQS,
+			       MESON_MX_SDIO_IRQS_CMD_INT,
+			       MESON_MX_SDIO_IRQS_CMD_INT);
+
+	writel(cmd->arg, host->base + MESON_MX_SDIO_ARGU);
+	writel(ext, host->base + MESON_MX_SDIO_EXT);
+	writel(send, host->base + MESON_MX_SDIO_SEND);
+
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
+
+	mod_timer(&host->cmd_timeout, jiffies + timeout);
+}
+
+static void meson_mx_mmc_request_done(struct meson_mx_mmc_host *host)
+{
+	struct mmc_request *mrq;
+
+	mrq = host->mrq;
+
+	host->mrq = NULL;
+	host->cmd = NULL;
+
+	mmc_request_done(host->mmc, mrq);
+}
+
+static void meson_mx_mmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct meson_mx_mmc_host *host = mmc_priv(mmc);
+	unsigned short vdd = ios->vdd;
+	unsigned long clk_rate = ios->clock;
+
+	switch (ios->bus_width) {
+	case MMC_BUS_WIDTH_1:
+		meson_mx_mmc_mask_bits(mmc, MESON_MX_SDIO_CONF,
+				       MESON_MX_SDIO_CONF_BUS_WIDTH, 0);
+		break;
+
+	case MMC_BUS_WIDTH_4:
+		meson_mx_mmc_mask_bits(mmc, MESON_MX_SDIO_CONF,
+				       MESON_MX_SDIO_CONF_BUS_WIDTH,
+				       MESON_MX_SDIO_CONF_BUS_WIDTH);
+		break;
+
+	case MMC_BUS_WIDTH_8:
+	default:
+		dev_err(mmc_dev(mmc), "unsupported bus width: %d\n",
+			ios->bus_width);
+		host->error = -EINVAL;
+		return;
+	}
+
+	host->error = clk_set_rate(host->cfg_div_clk, ios->clock);
+	if (host->error) {
+		dev_warn(mmc_dev(mmc),
+				"failed to set MMC clock to %lu: %d\n",
+				clk_rate, host->error);
+		return;
+	}
+
+	mmc->actual_clock = clk_get_rate(host->cfg_div_clk);
+
+	switch (ios->power_mode) {
+	case MMC_POWER_OFF:
+		vdd = 0;
+		/* fall-through: */
+	case MMC_POWER_UP:
+		if (!IS_ERR(mmc->supply.vmmc)) {
+			host->error = mmc_regulator_set_ocr(mmc,
+							    mmc->supply.vmmc,
+							    vdd);
+			if (host->error)
+				return;
+		}
+		break;
+	}
+}
+
+static int meson_mx_mmc_map_dma(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+	struct mmc_data *data = mrq->data;
+	int dma_len;
+	struct scatterlist *sg;
+
+	if (!data)
+		return 0;
+
+	sg = data->sg;
+	if (sg->offset & 3 || sg->length & 3) {
+		dev_err(mmc_dev(mmc),
+			"unaligned scatterlist: offset %x length %d\n",
+			sg->offset, sg->length);
+		return -EINVAL;
+	}
+
+	dma_len = dma_map_sg(mmc_dev(mmc), data->sg, data->sg_len,
+			     mmc_get_dma_dir(data));
+	if (dma_len <= 0) {
+		dev_err(mmc_dev(mmc), "dma_map_sg failed\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static void meson_mx_mmc_request(struct mmc_host *mmc, struct mmc_request *mrq)
+{
+	struct meson_mx_mmc_host *host = mmc_priv(mmc);
+	struct mmc_command *cmd = mrq->cmd;
+
+	if (!host->error)
+		host->error = meson_mx_mmc_map_dma(mmc, mrq);
+
+	if (host->error) {
+		cmd->error = host->error;
+		mmc_request_done(mmc, mrq);
+		return;
+	}
+
+	host->mrq = mrq;
+
+	if (mrq->data)
+		writel(sg_dma_address(mrq->data->sg),
+		       host->base + MESON_MX_SDIO_ADDR);
+
+	if (mrq->sbc)
+		meson_mx_mmc_start_cmd(mmc, mrq->sbc);
+	else
+		meson_mx_mmc_start_cmd(mmc, mrq->cmd);
+}
+
+static int meson_mx_mmc_card_busy(struct mmc_host *mmc)
+{
+	struct meson_mx_mmc_host *host = mmc_priv(mmc);
+	u32 irqc = readl(host->base + MESON_MX_SDIO_IRQC);
+
+	return !!(irqc & MESON_MX_SDIO_IRQC_FORCE_DATA_DAT_MASK);
+}
+
+static void meson_mx_mmc_read_response(struct mmc_host *mmc,
+				       struct mmc_command *cmd)
+{
+	struct meson_mx_mmc_host *host = mmc_priv(mmc);
+	u32 mult;
+	int i, resp[4];
+
+	mult = readl(host->base + MESON_MX_SDIO_MULT);
+	mult |= MESON_MX_SDIO_MULT_WR_RD_OUT_INDEX;
+	mult &= ~MESON_MX_SDIO_MULT_RESP_READ_INDEX_MASK;
+	mult |= FIELD_PREP(MESON_MX_SDIO_MULT_RESP_READ_INDEX_MASK, 0);
+	writel(mult, host->base + MESON_MX_SDIO_MULT);
+
+	if (cmd->flags & MMC_RSP_136) {
+		for (i = 0; i <= 3; i++)
+			resp[3 - i] = readl(host->base + MESON_MX_SDIO_ARGU);
+		cmd->resp[0] = (resp[0] << 8) | ((resp[1] >> 24) & 0xff);
+		cmd->resp[1] = (resp[1] << 8) | ((resp[2] >> 24) & 0xff);
+		cmd->resp[2] = (resp[2] << 8) | ((resp[3] >> 24) & 0xff);
+		cmd->resp[3] = (resp[3] << 8);
+	} else if (cmd->flags & MMC_RSP_PRESENT) {
+		cmd->resp[0] = readl(host->base + MESON_MX_SDIO_ARGU);
+	}
+}
+
+static irqreturn_t meson_mx_mmc_process_cmd_irq(struct meson_mx_mmc_host *host,
+						u32 irqs, u32 send)
+{
+	struct mmc_command *cmd = host->cmd;
+
+	/*
+	 * NOTE: even though it shouldn't happen we sometimes get command
+	 * interrupts twice (at least this is what it looks like). Ideally
+	 * we find out why this happens and warn here as soon as it occurs.
+	 */
+	if (!cmd)
+		return IRQ_HANDLED;
+
+	cmd->error = 0;
+	meson_mx_mmc_read_response(host->mmc, cmd);
+
+	if (cmd->data) {
+		if (!((irqs & MESON_MX_SDIO_IRQS_DATA_READ_CRC16_OK) ||
+		      (irqs & MESON_MX_SDIO_IRQS_DATA_WRITE_CRC16_OK)))
+			cmd->error = -EILSEQ;
+	} else {
+		if (!((irqs & MESON_MX_SDIO_IRQS_RESP_CRC7_OK) ||
+		      (send & MESON_MX_SDIO_SEND_RESP_WITHOUT_CRC7)))
+			cmd->error = -EILSEQ;
+	}
+
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t meson_mx_mmc_irq(int irq, void *data)
+{
+	struct meson_mx_mmc_host *host = (void *) data;
+	u32 irqs, send;
+	unsigned long irqflags;
+	irqreturn_t ret;
+
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+
+	irqs = readl(host->base + MESON_MX_SDIO_IRQS);
+	send = readl(host->base + MESON_MX_SDIO_SEND);
+
+	if (irqs & MESON_MX_SDIO_IRQS_CMD_INT)
+		ret = meson_mx_mmc_process_cmd_irq(host, irqs, send);
+	else
+		ret = IRQ_HANDLED;
+
+	/* finally ACK all pending interrupts */
+	writel(irqs, host->base + MESON_MX_SDIO_IRQS);
+
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
+
+	return ret;
+}
+
+static irqreturn_t meson_mx_mmc_irq_thread(int irq, void *irq_data)
+{
+	struct meson_mx_mmc_host *host = (void *) irq_data;
+	struct mmc_command *cmd = host->cmd, *next_cmd;
+
+	if (WARN_ON(!cmd))
+		return IRQ_HANDLED;
+
+	del_timer_sync(&host->cmd_timeout);
+
+	if (cmd->data) {
+		dma_unmap_sg(mmc_dev(host->mmc), cmd->data->sg,
+				cmd->data->sg_len,
+				mmc_get_dma_dir(cmd->data));
+
+		cmd->data->bytes_xfered = cmd->data->blksz * cmd->data->blocks;
+	}
+
+	next_cmd = meson_mx_mmc_get_next_cmd(cmd);
+	if (next_cmd)
+		meson_mx_mmc_start_cmd(host->mmc, next_cmd);
+	else
+		meson_mx_mmc_request_done(host);
+
+	return IRQ_HANDLED;
+}
+
+static void meson_mx_mmc_timeout(struct timer_list *t)
+{
+	struct meson_mx_mmc_host *host = from_timer(host, t, cmd_timeout);
+	unsigned long irqflags;
+	u32 irqc;
+
+	spin_lock_irqsave(&host->irq_lock, irqflags);
+
+	/* disable the CMD interrupt */
+	irqc = readl(host->base + MESON_MX_SDIO_IRQC);
+	irqc &= ~MESON_MX_SDIO_IRQC_ARC_CMD_INT_EN;
+	writel(irqc, host->base + MESON_MX_SDIO_IRQC);
+
+	spin_unlock_irqrestore(&host->irq_lock, irqflags);
+
+	/*
+	 * skip the timeout handling if the interrupt handler already processed
+	 * the command.
+	 */
+	if (!host->cmd)
+		return;
+
+	dev_dbg(mmc_dev(host->mmc),
+		"Timeout on CMD%u (IRQS = 0x%08x, ARGU = 0x%08x)\n",
+		host->cmd->opcode, readl(host->base + MESON_MX_SDIO_IRQS),
+		readl(host->base + MESON_MX_SDIO_ARGU));
+
+	host->cmd->error = -ETIMEDOUT;
+
+	meson_mx_mmc_request_done(host);
+}
+
+static struct mmc_host_ops meson_mx_mmc_ops = {
+	.request		= meson_mx_mmc_request,
+	.set_ios		= meson_mx_mmc_set_ios,
+	.card_busy		= meson_mx_mmc_card_busy,
+	.get_cd			= mmc_gpio_get_cd,
+	.get_ro			= mmc_gpio_get_ro,
+};
+
+static struct platform_device *meson_mx_mmc_slot_pdev(struct device *parent)
+{
+	struct device_node *slot_node;
+
+	/*
+	 * TODO: the MMC core framework currently does not support
+	 * controllers with multiple slots properly. So we only register
+	 * the first slot for now
+	 */
+	slot_node = of_find_compatible_node(parent->of_node, NULL, "mmc-slot");
+	if (!slot_node) {
+		dev_warn(parent, "no 'mmc-slot' sub-node found\n");
+		return ERR_PTR(-ENOENT);
+	}
+
+	return of_platform_device_create(slot_node, NULL, parent);
+}
+
+static int meson_mx_mmc_add_host(struct meson_mx_mmc_host *host)
+{
+	struct mmc_host *mmc = host->mmc;
+	struct device *slot_dev = mmc_dev(mmc);
+	int ret;
+
+	if (of_property_read_u32(slot_dev->of_node, "reg", &host->slot_id)) {
+		dev_err(slot_dev, "missing 'reg' property\n");
+		return -EINVAL;
+	}
+
+	if (host->slot_id >= MESON_MX_SDIO_MAX_SLOTS) {
+		dev_err(slot_dev, "invalid 'reg' property value %d\n",
+			host->slot_id);
+		return -EINVAL;
+	}
+
+	/* Get regulators and the supported OCR mask */
+	ret = mmc_regulator_get_supply(mmc);
+	if (ret)
+		return ret;
+
+	mmc->max_req_size = MESON_MX_SDIO_BOUNCE_REQ_SIZE;
+	mmc->max_seg_size = mmc->max_req_size;
+	mmc->max_blk_count =
+		FIELD_GET(MESON_MX_SDIO_SEND_REPEAT_PACKAGE_TIMES_MASK,
+			  0xffffffff);
+	mmc->max_blk_size = FIELD_GET(MESON_MX_SDIO_EXT_DATA_RW_NUMBER_MASK,
+				      0xffffffff);
+	mmc->max_blk_size -= (4 * MESON_MX_SDIO_RESPONSE_CRC16_BITS);
+	mmc->max_blk_size /= BITS_PER_BYTE;
+
+	/* Get the min and max supported clock rates */
+	mmc->f_min = clk_round_rate(host->cfg_div_clk, 1);
+	mmc->f_max = clk_round_rate(host->cfg_div_clk,
+				    clk_get_rate(host->parent_clk));
+
+	mmc->caps |= MMC_CAP_ERASE | MMC_CAP_CMD23;
+	mmc->ops = &meson_mx_mmc_ops;
+
+	ret = mmc_of_parse(mmc);
+	if (ret)
+		return ret;
+
+	ret = mmc_add_host(mmc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int meson_mx_mmc_register_clks(struct meson_mx_mmc_host *host)
+{
+	struct clk_init_data init;
+	const char *clk_div_parent, *clk_fixed_factor_parent;
+
+	clk_fixed_factor_parent = __clk_get_name(host->parent_clk);
+	init.name = devm_kasprintf(host->controller_dev, GFP_KERNEL,
+				   "%s#fixed_factor",
+				   dev_name(host->controller_dev));
+	init.ops = &clk_fixed_factor_ops;
+	init.flags = 0;
+	init.parent_names = &clk_fixed_factor_parent;
+	init.num_parents = 1;
+	host->fixed_factor.div = 2;
+	host->fixed_factor.mult = 1;
+	host->fixed_factor.hw.init = &init;
+
+	host->fixed_factor_clk = devm_clk_register(host->controller_dev,
+						 &host->fixed_factor.hw);
+	if (WARN_ON(IS_ERR(host->fixed_factor_clk)))
+		return PTR_ERR(host->fixed_factor_clk);
+
+	clk_div_parent = __clk_get_name(host->fixed_factor_clk);
+	init.name = devm_kasprintf(host->controller_dev, GFP_KERNEL,
+				   "%s#div", dev_name(host->controller_dev));
+	init.ops = &clk_divider_ops;
+	init.flags = CLK_SET_RATE_PARENT;
+	init.parent_names = &clk_div_parent;
+	init.num_parents = 1;
+	host->cfg_div.reg = host->base + MESON_MX_SDIO_CONF;
+	host->cfg_div.shift = MESON_MX_SDIO_CONF_CMD_CLK_DIV_SHIFT;
+	host->cfg_div.width = MESON_MX_SDIO_CONF_CMD_CLK_DIV_WIDTH;
+	host->cfg_div.hw.init = &init;
+	host->cfg_div.flags = CLK_DIVIDER_ALLOW_ZERO;
+
+	host->cfg_div_clk = devm_clk_register(host->controller_dev,
+					      &host->cfg_div.hw);
+	if (WARN_ON(IS_ERR(host->cfg_div_clk)))
+		return PTR_ERR(host->cfg_div_clk);
+
+	return 0;
+}
+
+static int meson_mx_mmc_probe(struct platform_device *pdev)
+{
+	struct platform_device *slot_pdev;
+	struct mmc_host *mmc;
+	struct meson_mx_mmc_host *host;
+	struct resource *res;
+	int ret, irq;
+	u32 conf;
+
+	slot_pdev = meson_mx_mmc_slot_pdev(&pdev->dev);
+	if (!slot_pdev)
+		return -ENODEV;
+	else if (IS_ERR(slot_pdev))
+		return PTR_ERR(slot_pdev);
+
+	mmc = mmc_alloc_host(sizeof(*host), &slot_pdev->dev);
+	if (!mmc) {
+		ret = -ENOMEM;
+		goto error_unregister_slot_pdev;
+	}
+
+	host = mmc_priv(mmc);
+	host->mmc = mmc;
+	host->controller_dev = &pdev->dev;
+
+	spin_lock_init(&host->irq_lock);
+	timer_setup(&host->cmd_timeout, meson_mx_mmc_timeout, 0);
+
+	platform_set_drvdata(pdev, host);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	host->base = devm_ioremap_resource(host->controller_dev, res);
+	if (IS_ERR(host->base)) {
+		ret = PTR_ERR(host->base);
+		goto error_free_mmc;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	ret = devm_request_threaded_irq(host->controller_dev, irq,
+					meson_mx_mmc_irq,
+					meson_mx_mmc_irq_thread, IRQF_ONESHOT,
+					NULL, host);
+	if (ret)
+		goto error_free_mmc;
+
+	host->core_clk = devm_clk_get(host->controller_dev, "core");
+	if (IS_ERR(host->core_clk)) {
+		ret = PTR_ERR(host->core_clk);
+		goto error_free_mmc;
+	}
+
+	host->parent_clk = devm_clk_get(host->controller_dev, "clkin");
+	if (IS_ERR(host->parent_clk)) {
+		ret = PTR_ERR(host->parent_clk);
+		goto error_free_mmc;
+	}
+
+	ret = meson_mx_mmc_register_clks(host);
+	if (ret)
+		goto error_free_mmc;
+
+	ret = clk_prepare_enable(host->core_clk);
+	if (ret) {
+		dev_err(host->controller_dev, "Failed to enable core clock\n");
+		goto error_free_mmc;
+	}
+
+	ret = clk_prepare_enable(host->cfg_div_clk);
+	if (ret) {
+		dev_err(host->controller_dev, "Failed to enable MMC clock\n");
+		goto error_disable_core_clk;
+	}
+
+	conf = 0;
+	conf |= FIELD_PREP(MESON_MX_SDIO_CONF_CMD_ARGUMENT_BITS_MASK, 39);
+	conf |= FIELD_PREP(MESON_MX_SDIO_CONF_M_ENDIAN_MASK, 0x3);
+	conf |= FIELD_PREP(MESON_MX_SDIO_CONF_WRITE_NWR_MASK, 0x2);
+	conf |= FIELD_PREP(MESON_MX_SDIO_CONF_WRITE_CRC_OK_STATUS_MASK, 0x2);
+	writel(conf, host->base + MESON_MX_SDIO_CONF);
+
+	meson_mx_mmc_soft_reset(host);
+
+	ret = meson_mx_mmc_add_host(host);
+	if (ret)
+		goto error_disable_clks;
+
+	return 0;
+
+error_disable_clks:
+	clk_disable_unprepare(host->cfg_div_clk);
+error_disable_core_clk:
+	clk_disable_unprepare(host->core_clk);
+error_free_mmc:
+	mmc_free_host(mmc);
+error_unregister_slot_pdev:
+	of_platform_device_destroy(&slot_pdev->dev, NULL);
+	return ret;
+}
+
+static int meson_mx_mmc_remove(struct platform_device *pdev)
+{
+	struct meson_mx_mmc_host *host = platform_get_drvdata(pdev);
+	struct device *slot_dev = mmc_dev(host->mmc);
+
+	del_timer_sync(&host->cmd_timeout);
+
+	mmc_remove_host(host->mmc);
+
+	of_platform_device_destroy(slot_dev, NULL);
+
+	clk_disable_unprepare(host->cfg_div_clk);
+	clk_disable_unprepare(host->core_clk);
+
+	mmc_free_host(host->mmc);
+
+	return 0;
+}
+
+static const struct of_device_id meson_mx_mmc_of_match[] = {
+	{ .compatible = "amlogic,meson8-sdio", },
+	{ .compatible = "amlogic,meson8b-sdio", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, meson_mx_mmc_of_match);
+
+static struct platform_driver meson_mx_mmc_driver = {
+	.probe   = meson_mx_mmc_probe,
+	.remove  = meson_mx_mmc_remove,
+	.driver  = {
+		.name = "meson-mx-sdio",
+		.of_match_table = of_match_ptr(meson_mx_mmc_of_match),
+	},
+};
+
+module_platform_driver(meson_mx_mmc_driver);
+
+MODULE_DESCRIPTION("Meson6, Meson8 and Meson8b SDIO/MMC Host Driver");
+MODULE_AUTHOR("Carlo Caione <carlo@endlessm.com>");
+MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index f1f54a818489..e8a1bb1ae694 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1658,7 +1658,7 @@ static int mmci_probe(struct amba_device *dev,
 
 	/* Get regulators and the supported OCR mask */
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		goto clk_disable;
 
 	if (!mmc->ocr_avail)
diff --git a/drivers/mmc/host/mtk-sd.c b/drivers/mmc/host/mtk-sd.c
index 267f7ab08420..6457a7d8880f 100644
--- a/drivers/mmc/host/mtk-sd.c
+++ b/drivers/mmc/host/mtk-sd.c
@@ -67,6 +67,7 @@
 #define SDC_RESP2        0x48
 #define SDC_RESP3        0x4c
 #define SDC_BLK_NUM      0x50
+#define SDC_ADV_CFG0     0x64
 #define EMMC_IOCON       0x7c
 #define SDC_ACMD_RESP    0x80
 #define MSDC_DMA_SA      0x90
@@ -74,10 +75,14 @@
 #define MSDC_DMA_CFG     0x9c
 #define MSDC_PATCH_BIT   0xb0
 #define MSDC_PATCH_BIT1  0xb4
+#define MSDC_PATCH_BIT2  0xb8
 #define MSDC_PAD_TUNE    0xec
+#define MSDC_PAD_TUNE0   0xf0
 #define PAD_DS_TUNE      0x188
 #define PAD_CMD_TUNE     0x18c
 #define EMMC50_CFG0      0x208
+#define EMMC50_CFG3      0x220
+#define SDC_FIFO_CFG     0x228
 
 /*--------------------------------------------------------------------------*/
 /* Register Mask                                                            */
@@ -95,6 +100,9 @@
 #define MSDC_CFG_CKDIV          (0xff << 8)	/* RW */
 #define MSDC_CFG_CKMOD          (0x3 << 16)	/* RW */
 #define MSDC_CFG_HS400_CK_MODE  (0x1 << 18)	/* RW */
+#define MSDC_CFG_HS400_CK_MODE_EXTRA  (0x1 << 22)	/* RW */
+#define MSDC_CFG_CKDIV_EXTRA    (0xfff << 8)	/* RW */
+#define MSDC_CFG_CKMOD_EXTRA    (0x3 << 20)	/* RW */
 
 /* MSDC_IOCON mask */
 #define MSDC_IOCON_SDR104CKS    (0x1 << 0)	/* RW */
@@ -183,6 +191,9 @@
 #define SDC_STS_CMDBUSY         (0x1 << 1)	/* RW */
 #define SDC_STS_SWR_COMPL       (0x1 << 31)	/* RW */
 
+/* SDC_ADV_CFG0 mask */
+#define SDC_RX_ENHANCE_EN	(0x1 << 20)	/* RW */
+
 /* MSDC_DMA_CTRL mask */
 #define MSDC_DMA_CTRL_START     (0x1 << 0)	/* W */
 #define MSDC_DMA_CTRL_STOP      (0x1 << 1)	/* W */
@@ -212,11 +223,22 @@
 #define MSDC_PATCH_BIT_SPCPUSH    (0x1 << 29)	/* RW */
 #define MSDC_PATCH_BIT_DECRCTMO   (0x1 << 30)	/* RW */
 
+#define MSDC_PATCH_BIT1_STOP_DLY  (0xf << 8)    /* RW */
+
+#define MSDC_PATCH_BIT2_CFGRESP   (0x1 << 15)   /* RW */
+#define MSDC_PATCH_BIT2_CFGCRCSTS (0x1 << 28)   /* RW */
+#define MSDC_PB2_RESPWAIT         (0x3 << 2)    /* RW */
+#define MSDC_PB2_RESPSTSENSEL     (0x7 << 16)   /* RW */
+#define MSDC_PB2_CRCSTSENSEL      (0x7 << 29)   /* RW */
+
 #define MSDC_PAD_TUNE_DATWRDLY	  (0x1f <<  0)	/* RW */
 #define MSDC_PAD_TUNE_DATRRDLY	  (0x1f <<  8)	/* RW */
 #define MSDC_PAD_TUNE_CMDRDLY	  (0x1f << 16)  /* RW */
 #define MSDC_PAD_TUNE_CMDRRDLY	  (0x1f << 22)	/* RW */
 #define MSDC_PAD_TUNE_CLKTDLY	  (0x1f << 27)  /* RW */
+#define MSDC_PAD_TUNE_RXDLYSEL	  (0x1 << 15)   /* RW */
+#define MSDC_PAD_TUNE_RD_SEL	  (0x1 << 13)   /* RW */
+#define MSDC_PAD_TUNE_CMD_SEL	  (0x1 << 21)   /* RW */
 
 #define PAD_DS_TUNE_DLY1	  (0x1f << 2)   /* RW */
 #define PAD_DS_TUNE_DLY2	  (0x1f << 7)   /* RW */
@@ -228,6 +250,11 @@
 #define EMMC50_CFG_CRCSTS_EDGE    (0x1 << 3)   /* RW */
 #define EMMC50_CFG_CFCSTS_SEL     (0x1 << 4)   /* RW */
 
+#define EMMC50_CFG3_OUTS_WR       (0x1f << 0)  /* RW */
+
+#define SDC_FIFO_CFG_WRVALIDSEL   (0x1 << 24)  /* RW */
+#define SDC_FIFO_CFG_RDVALIDSEL   (0x1 << 25)  /* RW */
+
 #define REQ_CMD_EIO  (0x1 << 0)
 #define REQ_CMD_TMO  (0x1 << 1)
 #define REQ_DAT_ERR  (0x1 << 2)
@@ -290,9 +317,23 @@ struct msdc_save_para {
 	u32 pad_tune;
 	u32 patch_bit0;
 	u32 patch_bit1;
+	u32 patch_bit2;
 	u32 pad_ds_tune;
 	u32 pad_cmd_tune;
 	u32 emmc50_cfg0;
+	u32 emmc50_cfg3;
+	u32 sdc_fifo_cfg;
+};
+
+struct mtk_mmc_compatible {
+	u8 clk_div_bits;
+	bool hs400_tune; /* only used for MT8173 */
+	u32 pad_tune_reg;
+	bool async_fifo;
+	bool data_tune;
+	bool busy_check;
+	bool stop_clk_fix;
+	bool enhance_rx;
 };
 
 struct msdc_tune_para {
@@ -309,6 +350,7 @@ struct msdc_delay_phase {
 
 struct msdc_host {
 	struct device *dev;
+	const struct mtk_mmc_compatible *dev_comp;
 	struct mmc_host *mmc;	/* mmc structure */
 	int cmd_rsp;
 
@@ -334,11 +376,13 @@ struct msdc_host {
 
 	struct clk *src_clk;	/* msdc source clock */
 	struct clk *h_clk;      /* msdc h_clk */
+	struct clk *src_clk_cg; /* msdc source clock control gate */
 	u32 mclk;		/* mmc subsystem clock frequency */
 	u32 src_clk_freq;	/* source clock frequency */
 	u32 sclk;		/* SD/MS bus clock frequency */
 	unsigned char timing;
 	bool vqmmc_enabled;
+	u32 latch_ck;
 	u32 hs400_ds_delay;
 	u32 hs200_cmd_int_delay; /* cmd internal delay for HS200/SDR104 */
 	u32 hs400_cmd_int_delay; /* cmd internal delay for HS400 */
@@ -350,6 +394,59 @@ struct msdc_host {
 	struct msdc_tune_para saved_tune_para; /* tune result of CMD21/CMD19 */
 };
 
+static const struct mtk_mmc_compatible mt8135_compat = {
+	.clk_div_bits = 8,
+	.hs400_tune = false,
+	.pad_tune_reg = MSDC_PAD_TUNE,
+	.async_fifo = false,
+	.data_tune = false,
+	.busy_check = false,
+	.stop_clk_fix = false,
+	.enhance_rx = false,
+};
+
+static const struct mtk_mmc_compatible mt8173_compat = {
+	.clk_div_bits = 8,
+	.hs400_tune = true,
+	.pad_tune_reg = MSDC_PAD_TUNE,
+	.async_fifo = false,
+	.data_tune = false,
+	.busy_check = false,
+	.stop_clk_fix = false,
+	.enhance_rx = false,
+};
+
+static const struct mtk_mmc_compatible mt2701_compat = {
+	.clk_div_bits = 12,
+	.hs400_tune = false,
+	.pad_tune_reg = MSDC_PAD_TUNE0,
+	.async_fifo = true,
+	.data_tune = true,
+	.busy_check = false,
+	.stop_clk_fix = false,
+	.enhance_rx = false,
+};
+
+static const struct mtk_mmc_compatible mt2712_compat = {
+	.clk_div_bits = 12,
+	.hs400_tune = false,
+	.pad_tune_reg = MSDC_PAD_TUNE0,
+	.async_fifo = true,
+	.data_tune = true,
+	.busy_check = true,
+	.stop_clk_fix = true,
+	.enhance_rx = true,
+};
+
+static const struct of_device_id msdc_of_ids[] = {
+	{ .compatible = "mediatek,mt8135-mmc", .data = &mt8135_compat},
+	{ .compatible = "mediatek,mt8173-mmc", .data = &mt8173_compat},
+	{ .compatible = "mediatek,mt2701-mmc", .data = &mt2701_compat},
+	{ .compatible = "mediatek,mt2712-mmc", .data = &mt2712_compat},
+	{}
+};
+MODULE_DEVICE_TABLE(of, msdc_of_ids);
+
 static void sdr_set_bits(void __iomem *reg, u32 bs)
 {
 	u32 val = readl(reg);
@@ -509,7 +606,12 @@ static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks)
 		timeout = (ns + clk_ns - 1) / clk_ns + clks;
 		/* in 1048576 sclk cycle unit */
 		timeout = (timeout + (0x1 << 20) - 1) >> 20;
-		sdr_get_field(host->base + MSDC_CFG, MSDC_CFG_CKMOD, &mode);
+		if (host->dev_comp->clk_div_bits == 8)
+			sdr_get_field(host->base + MSDC_CFG,
+				      MSDC_CFG_CKMOD, &mode);
+		else
+			sdr_get_field(host->base + MSDC_CFG,
+				      MSDC_CFG_CKMOD_EXTRA, &mode);
 		/*DDR mode will double the clk cycles for data timeout */
 		timeout = mode >= 2 ? timeout * 2 : timeout;
 		timeout = timeout > 1 ? timeout - 1 : 0;
@@ -520,6 +622,7 @@ static void msdc_set_timeout(struct msdc_host *host, u32 ns, u32 clks)
 
 static void msdc_gate_clock(struct msdc_host *host)
 {
+	clk_disable_unprepare(host->src_clk_cg);
 	clk_disable_unprepare(host->src_clk);
 	clk_disable_unprepare(host->h_clk);
 }
@@ -528,6 +631,7 @@ static void msdc_ungate_clock(struct msdc_host *host)
 {
 	clk_prepare_enable(host->h_clk);
 	clk_prepare_enable(host->src_clk);
+	clk_prepare_enable(host->src_clk_cg);
 	while (!(readl(host->base + MSDC_CFG) & MSDC_CFG_CKSTB))
 		cpu_relax();
 }
@@ -538,6 +642,7 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 	u32 flags;
 	u32 div;
 	u32 sclk;
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
 
 	if (!hz) {
 		dev_dbg(host->dev, "set mclk to 0\n");
@@ -548,7 +653,11 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 
 	flags = readl(host->base + MSDC_INTEN);
 	sdr_clr_bits(host->base + MSDC_INTEN, flags);
-	sdr_clr_bits(host->base + MSDC_CFG, MSDC_CFG_HS400_CK_MODE);
+	if (host->dev_comp->clk_div_bits == 8)
+		sdr_clr_bits(host->base + MSDC_CFG, MSDC_CFG_HS400_CK_MODE);
+	else
+		sdr_clr_bits(host->base + MSDC_CFG,
+			     MSDC_CFG_HS400_CK_MODE_EXTRA);
 	if (timing == MMC_TIMING_UHS_DDR50 ||
 	    timing == MMC_TIMING_MMC_DDR52 ||
 	    timing == MMC_TIMING_MMC_HS400) {
@@ -568,8 +677,12 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 
 		if (timing == MMC_TIMING_MMC_HS400 &&
 		    hz >= (host->src_clk_freq >> 1)) {
-			sdr_set_bits(host->base + MSDC_CFG,
-				     MSDC_CFG_HS400_CK_MODE);
+			if (host->dev_comp->clk_div_bits == 8)
+				sdr_set_bits(host->base + MSDC_CFG,
+					     MSDC_CFG_HS400_CK_MODE);
+			else
+				sdr_set_bits(host->base + MSDC_CFG,
+					     MSDC_CFG_HS400_CK_MODE_EXTRA);
 			sclk = host->src_clk_freq >> 1;
 			div = 0; /* div is ignore when bit18 is set */
 		}
@@ -587,11 +700,31 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 			sclk = (host->src_clk_freq >> 2) / div;
 		}
 	}
-	sdr_set_field(host->base + MSDC_CFG, MSDC_CFG_CKMOD | MSDC_CFG_CKDIV,
-		      (mode << 8) | div);
-	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_CKPDN);
+	sdr_clr_bits(host->base + MSDC_CFG, MSDC_CFG_CKPDN);
+	/*
+	 * As src_clk/HCLK use the same bit to gate/ungate,
+	 * So if want to only gate src_clk, need gate its parent(mux).
+	 */
+	if (host->src_clk_cg)
+		clk_disable_unprepare(host->src_clk_cg);
+	else
+		clk_disable_unprepare(clk_get_parent(host->src_clk));
+	if (host->dev_comp->clk_div_bits == 8)
+		sdr_set_field(host->base + MSDC_CFG,
+			      MSDC_CFG_CKMOD | MSDC_CFG_CKDIV,
+			      (mode << 8) | div);
+	else
+		sdr_set_field(host->base + MSDC_CFG,
+			      MSDC_CFG_CKMOD_EXTRA | MSDC_CFG_CKDIV_EXTRA,
+			      (mode << 12) | div);
+	if (host->src_clk_cg)
+		clk_prepare_enable(host->src_clk_cg);
+	else
+		clk_prepare_enable(clk_get_parent(host->src_clk));
+
 	while (!(readl(host->base + MSDC_CFG) & MSDC_CFG_CKSTB))
 		cpu_relax();
+	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_CKPDN);
 	host->sclk = sclk;
 	host->mclk = hz;
 	host->timing = timing;
@@ -605,15 +738,16 @@ static void msdc_set_mclk(struct msdc_host *host, unsigned char timing, u32 hz)
 	 */
 	if (host->sclk <= 52000000) {
 		writel(host->def_tune_para.iocon, host->base + MSDC_IOCON);
-		writel(host->def_tune_para.pad_tune, host->base + MSDC_PAD_TUNE);
+		writel(host->def_tune_para.pad_tune, host->base + tune_reg);
 	} else {
 		writel(host->saved_tune_para.iocon, host->base + MSDC_IOCON);
-		writel(host->saved_tune_para.pad_tune, host->base + MSDC_PAD_TUNE);
+		writel(host->saved_tune_para.pad_tune, host->base + tune_reg);
 		writel(host->saved_tune_para.pad_cmd_tune,
 		       host->base + PAD_CMD_TUNE);
 	}
 
-	if (timing == MMC_TIMING_MMC_HS400)
+	if (timing == MMC_TIMING_MMC_HS400 &&
+	    host->dev_comp->hs400_tune)
 		sdr_set_field(host->base + PAD_CMD_TUNE,
 			      MSDC_PAD_TUNE_CMDRRDLY,
 			      host->hs400_cmd_int_delay);
@@ -1165,6 +1299,7 @@ static irqreturn_t msdc_irq(int irq, void *dev_id)
 static void msdc_init_hw(struct msdc_host *host)
 {
 	u32 val;
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
 
 	/* Configure to MMC/SD mode, clock free running */
 	sdr_set_bits(host->base + MSDC_CFG, MSDC_CFG_MODE | MSDC_CFG_CKPDN);
@@ -1180,14 +1315,53 @@ static void msdc_init_hw(struct msdc_host *host)
 	val = readl(host->base + MSDC_INT);
 	writel(val, host->base + MSDC_INT);
 
-	writel(0, host->base + MSDC_PAD_TUNE);
+	writel(0, host->base + tune_reg);
 	writel(0, host->base + MSDC_IOCON);
 	sdr_set_field(host->base + MSDC_IOCON, MSDC_IOCON_DDLSEL, 0);
 	writel(0x403c0046, host->base + MSDC_PATCH_BIT);
 	sdr_set_field(host->base + MSDC_PATCH_BIT, MSDC_CKGEN_MSDC_DLY_SEL, 1);
-	writel(0xffff0089, host->base + MSDC_PATCH_BIT1);
+	writel(0xffff4089, host->base + MSDC_PATCH_BIT1);
 	sdr_set_bits(host->base + EMMC50_CFG0, EMMC50_CFG_CFCSTS_SEL);
 
+	if (host->dev_comp->stop_clk_fix) {
+		sdr_set_field(host->base + MSDC_PATCH_BIT1,
+			      MSDC_PATCH_BIT1_STOP_DLY, 3);
+		sdr_clr_bits(host->base + SDC_FIFO_CFG,
+			     SDC_FIFO_CFG_WRVALIDSEL);
+		sdr_clr_bits(host->base + SDC_FIFO_CFG,
+			     SDC_FIFO_CFG_RDVALIDSEL);
+	}
+
+	if (host->dev_comp->busy_check)
+		sdr_clr_bits(host->base + MSDC_PATCH_BIT1, (1 << 7));
+
+	if (host->dev_comp->async_fifo) {
+		sdr_set_field(host->base + MSDC_PATCH_BIT2,
+			      MSDC_PB2_RESPWAIT, 3);
+		if (host->dev_comp->enhance_rx) {
+			sdr_set_bits(host->base + SDC_ADV_CFG0,
+				     SDC_RX_ENHANCE_EN);
+		} else {
+			sdr_set_field(host->base + MSDC_PATCH_BIT2,
+				      MSDC_PB2_RESPSTSENSEL, 2);
+			sdr_set_field(host->base + MSDC_PATCH_BIT2,
+				      MSDC_PB2_CRCSTSENSEL, 2);
+		}
+		/* use async fifo, then no need tune internal delay */
+		sdr_clr_bits(host->base + MSDC_PATCH_BIT2,
+			     MSDC_PATCH_BIT2_CFGRESP);
+		sdr_set_bits(host->base + MSDC_PATCH_BIT2,
+			     MSDC_PATCH_BIT2_CFGCRCSTS);
+	}
+
+	if (host->dev_comp->data_tune) {
+		sdr_set_bits(host->base + tune_reg,
+			     MSDC_PAD_TUNE_RD_SEL | MSDC_PAD_TUNE_CMD_SEL);
+	} else {
+		/* choose clock tune */
+		sdr_set_bits(host->base + tune_reg, MSDC_PAD_TUNE_RXDLYSEL);
+	}
+
 	/* Configure to enable SDIO mode.
 	 * it's must otherwise sdio cmd5 failed
 	 */
@@ -1200,7 +1374,9 @@ static void msdc_init_hw(struct msdc_host *host)
 	sdr_set_field(host->base + SDC_CFG, SDC_CFG_DTOC, 3);
 
 	host->def_tune_para.iocon = readl(host->base + MSDC_IOCON);
-	host->def_tune_para.pad_tune = readl(host->base + MSDC_PAD_TUNE);
+	host->def_tune_para.pad_tune = readl(host->base + tune_reg);
+	host->saved_tune_para.iocon = readl(host->base + MSDC_IOCON);
+	host->saved_tune_para.pad_tune = readl(host->base + tune_reg);
 	dev_dbg(host->dev, "init hardware done!");
 }
 
@@ -1343,18 +1519,19 @@ static int msdc_tune_response(struct mmc_host *mmc, u32 opcode)
 	struct msdc_delay_phase internal_delay_phase;
 	u8 final_delay, final_maxlen;
 	u32 internal_delay = 0;
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
 	int cmd_err;
 	int i, j;
 
 	if (mmc->ios.timing == MMC_TIMING_MMC_HS200 ||
 	    mmc->ios.timing == MMC_TIMING_UHS_SDR104)
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_CMDRRDLY,
 			      host->hs200_cmd_int_delay);
 
 	sdr_clr_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
 	for (i = 0 ; i < PAD_DELAY_MAX; i++) {
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_CMDRDLY, i);
 		/*
 		 * Using the same parameters, it may sometimes pass the test,
@@ -1373,12 +1550,13 @@ static int msdc_tune_response(struct mmc_host *mmc, u32 opcode)
 	}
 	final_rise_delay = get_best_delay(host, rise_delay);
 	/* if rising edge has enough margin, then do not scan falling edge */
-	if (final_rise_delay.maxlen >= 12 && final_rise_delay.start < 4)
+	if (final_rise_delay.maxlen >= 12 ||
+	    (final_rise_delay.start == 0 && final_rise_delay.maxlen >= 4))
 		goto skip_fall;
 
 	sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
 	for (i = 0; i < PAD_DELAY_MAX; i++) {
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_CMDRDLY, i);
 		/*
 		 * Using the same parameters, it may sometimes pass the test,
@@ -1403,20 +1581,20 @@ skip_fall:
 		final_maxlen = final_fall_delay.maxlen;
 	if (final_maxlen == final_rise_delay.maxlen) {
 		sdr_clr_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
-		sdr_set_field(host->base + MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRDLY,
+		sdr_set_field(host->base + tune_reg, MSDC_PAD_TUNE_CMDRDLY,
 			      final_rise_delay.final_phase);
 		final_delay = final_rise_delay.final_phase;
 	} else {
 		sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_RSPL);
-		sdr_set_field(host->base + MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRDLY,
+		sdr_set_field(host->base + tune_reg, MSDC_PAD_TUNE_CMDRDLY,
 			      final_fall_delay.final_phase);
 		final_delay = final_fall_delay.final_phase;
 	}
-	if (host->hs200_cmd_int_delay)
+	if (host->dev_comp->async_fifo || host->hs200_cmd_int_delay)
 		goto skip_internal;
 
 	for (i = 0; i < PAD_DELAY_MAX; i++) {
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_CMDRRDLY, i);
 		mmc_send_tuning(mmc, opcode, &cmd_err);
 		if (!cmd_err)
@@ -1424,7 +1602,7 @@ skip_fall:
 	}
 	dev_dbg(host->dev, "Final internal delay: 0x%x\n", internal_delay);
 	internal_delay_phase = get_best_delay(host, internal_delay);
-	sdr_set_field(host->base + MSDC_PAD_TUNE, MSDC_PAD_TUNE_CMDRRDLY,
+	sdr_set_field(host->base + tune_reg, MSDC_PAD_TUNE_CMDRRDLY,
 		      internal_delay_phase.final_phase);
 skip_internal:
 	dev_dbg(host->dev, "Final cmd pad delay: %x\n", final_delay);
@@ -1486,12 +1664,15 @@ static int msdc_tune_data(struct mmc_host *mmc, u32 opcode)
 	u32 rise_delay = 0, fall_delay = 0;
 	struct msdc_delay_phase final_rise_delay, final_fall_delay = { 0,};
 	u8 final_delay, final_maxlen;
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
 	int i, ret;
 
+	sdr_set_field(host->base + MSDC_PATCH_BIT, MSDC_INT_DAT_LATCH_CK_SEL,
+		      host->latch_ck);
 	sdr_clr_bits(host->base + MSDC_IOCON, MSDC_IOCON_DSPL);
 	sdr_clr_bits(host->base + MSDC_IOCON, MSDC_IOCON_W_DSPL);
 	for (i = 0 ; i < PAD_DELAY_MAX; i++) {
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_DATRRDLY, i);
 		ret = mmc_send_tuning(mmc, opcode, NULL);
 		if (!ret)
@@ -1506,7 +1687,7 @@ static int msdc_tune_data(struct mmc_host *mmc, u32 opcode)
 	sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_DSPL);
 	sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_W_DSPL);
 	for (i = 0; i < PAD_DELAY_MAX; i++) {
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_DATRRDLY, i);
 		ret = mmc_send_tuning(mmc, opcode, NULL);
 		if (!ret)
@@ -1519,14 +1700,14 @@ skip_fall:
 	if (final_maxlen == final_rise_delay.maxlen) {
 		sdr_clr_bits(host->base + MSDC_IOCON, MSDC_IOCON_DSPL);
 		sdr_clr_bits(host->base + MSDC_IOCON, MSDC_IOCON_W_DSPL);
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_DATRRDLY,
 			      final_rise_delay.final_phase);
 		final_delay = final_rise_delay.final_phase;
 	} else {
 		sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_DSPL);
 		sdr_set_bits(host->base + MSDC_IOCON, MSDC_IOCON_W_DSPL);
-		sdr_set_field(host->base + MSDC_PAD_TUNE,
+		sdr_set_field(host->base + tune_reg,
 			      MSDC_PAD_TUNE_DATRRDLY,
 			      final_fall_delay.final_phase);
 		final_delay = final_fall_delay.final_phase;
@@ -1540,8 +1721,10 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 opcode)
 {
 	struct msdc_host *host = mmc_priv(mmc);
 	int ret;
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
 
-	if (host->hs400_mode)
+	if (host->hs400_mode &&
+	    host->dev_comp->hs400_tune)
 		ret = hs400_tune_response(mmc, opcode);
 	else
 		ret = msdc_tune_response(mmc, opcode);
@@ -1556,7 +1739,7 @@ static int msdc_execute_tuning(struct mmc_host *mmc, u32 opcode)
 	}
 
 	host->saved_tune_para.iocon = readl(host->base + MSDC_IOCON);
-	host->saved_tune_para.pad_tune = readl(host->base + MSDC_PAD_TUNE);
+	host->saved_tune_para.pad_tune = readl(host->base + tune_reg);
 	host->saved_tune_para.pad_cmd_tune = readl(host->base + PAD_CMD_TUNE);
 	return ret;
 }
@@ -1567,6 +1750,11 @@ static int msdc_prepare_hs400_tuning(struct mmc_host *mmc, struct mmc_ios *ios)
 	host->hs400_mode = true;
 
 	writel(host->hs400_ds_delay, host->base + PAD_DS_TUNE);
+	/* hs400 mode must set it to 0 */
+	sdr_clr_bits(host->base + MSDC_PATCH_BIT2, MSDC_PATCH_BIT2_CFGCRCSTS);
+	/* to improve read performance, set outstanding to 2 */
+	sdr_set_field(host->base + EMMC50_CFG3, EMMC50_CFG3_OUTS_WR, 2);
+
 	return 0;
 }
 
@@ -1596,6 +1784,9 @@ static const struct mmc_host_ops mt_msdc_ops = {
 static void msdc_of_property_parse(struct platform_device *pdev,
 				   struct msdc_host *host)
 {
+	of_property_read_u32(pdev->dev.of_node, "mediatek,latch-ck",
+			     &host->latch_ck);
+
 	of_property_read_u32(pdev->dev.of_node, "hs400-ds-delay",
 			     &host->hs400_ds_delay);
 
@@ -1617,12 +1808,17 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	struct mmc_host *mmc;
 	struct msdc_host *host;
 	struct resource *res;
+	const struct of_device_id *of_id;
 	int ret;
 
 	if (!pdev->dev.of_node) {
 		dev_err(&pdev->dev, "No DT found\n");
 		return -EINVAL;
 	}
+
+	of_id = of_match_node(msdc_of_ids, pdev->dev.of_node);
+	if (!of_id)
+		return -EINVAL;
 	/* Allocate MMC host for this device */
 	mmc = mmc_alloc_host(sizeof(struct msdc_host), &pdev->dev);
 	if (!mmc)
@@ -1641,7 +1837,7 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	}
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		goto host_free;
 
 	host->src_clk = devm_clk_get(&pdev->dev, "source");
@@ -1656,6 +1852,11 @@ static int msdc_drv_probe(struct platform_device *pdev)
 		goto host_free;
 	}
 
+	/*source clock control gate is optional clock*/
+	host->src_clk_cg = devm_clk_get(&pdev->dev, "source_cg");
+	if (IS_ERR(host->src_clk_cg))
+		host->src_clk_cg = NULL;
+
 	host->irq = platform_get_irq(pdev, 0);
 	if (host->irq < 0) {
 		ret = -EINVAL;
@@ -1686,11 +1887,15 @@ static int msdc_drv_probe(struct platform_device *pdev)
 	msdc_of_property_parse(pdev, host);
 
 	host->dev = &pdev->dev;
+	host->dev_comp = of_id->data;
 	host->mmc = mmc;
 	host->src_clk_freq = clk_get_rate(host->src_clk);
 	/* Set host parameters to mmc */
 	mmc->ops = &mt_msdc_ops;
-	mmc->f_min = DIV_ROUND_UP(host->src_clk_freq, 4 * 255);
+	if (host->dev_comp->clk_div_bits == 8)
+		mmc->f_min = DIV_ROUND_UP(host->src_clk_freq, 4 * 255);
+	else
+		mmc->f_min = DIV_ROUND_UP(host->src_clk_freq, 4 * 4095);
 
 	mmc->caps |= MMC_CAP_ERASE | MMC_CAP_CMD23;
 	/* MMC core transfer sizes tunable parameters */
@@ -1788,28 +1993,38 @@ static int msdc_drv_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static void msdc_save_reg(struct msdc_host *host)
 {
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
+
 	host->save_para.msdc_cfg = readl(host->base + MSDC_CFG);
 	host->save_para.iocon = readl(host->base + MSDC_IOCON);
 	host->save_para.sdc_cfg = readl(host->base + SDC_CFG);
-	host->save_para.pad_tune = readl(host->base + MSDC_PAD_TUNE);
+	host->save_para.pad_tune = readl(host->base + tune_reg);
 	host->save_para.patch_bit0 = readl(host->base + MSDC_PATCH_BIT);
 	host->save_para.patch_bit1 = readl(host->base + MSDC_PATCH_BIT1);
+	host->save_para.patch_bit2 = readl(host->base + MSDC_PATCH_BIT2);
 	host->save_para.pad_ds_tune = readl(host->base + PAD_DS_TUNE);
 	host->save_para.pad_cmd_tune = readl(host->base + PAD_CMD_TUNE);
 	host->save_para.emmc50_cfg0 = readl(host->base + EMMC50_CFG0);
+	host->save_para.emmc50_cfg3 = readl(host->base + EMMC50_CFG3);
+	host->save_para.sdc_fifo_cfg = readl(host->base + SDC_FIFO_CFG);
 }
 
 static void msdc_restore_reg(struct msdc_host *host)
 {
+	u32 tune_reg = host->dev_comp->pad_tune_reg;
+
 	writel(host->save_para.msdc_cfg, host->base + MSDC_CFG);
 	writel(host->save_para.iocon, host->base + MSDC_IOCON);
 	writel(host->save_para.sdc_cfg, host->base + SDC_CFG);
-	writel(host->save_para.pad_tune, host->base + MSDC_PAD_TUNE);
+	writel(host->save_para.pad_tune, host->base + tune_reg);
 	writel(host->save_para.patch_bit0, host->base + MSDC_PATCH_BIT);
 	writel(host->save_para.patch_bit1, host->base + MSDC_PATCH_BIT1);
+	writel(host->save_para.patch_bit2, host->base + MSDC_PATCH_BIT2);
 	writel(host->save_para.pad_ds_tune, host->base + PAD_DS_TUNE);
 	writel(host->save_para.pad_cmd_tune, host->base + PAD_CMD_TUNE);
 	writel(host->save_para.emmc50_cfg0, host->base + EMMC50_CFG0);
+	writel(host->save_para.emmc50_cfg3, host->base + EMMC50_CFG3);
+	writel(host->save_para.sdc_fifo_cfg, host->base + SDC_FIFO_CFG);
 }
 
 static int msdc_runtime_suspend(struct device *dev)
@@ -1839,12 +2054,6 @@ static const struct dev_pm_ops msdc_dev_pm_ops = {
 	SET_RUNTIME_PM_OPS(msdc_runtime_suspend, msdc_runtime_resume, NULL)
 };
 
-static const struct of_device_id msdc_of_ids[] = {
-	{   .compatible = "mediatek,mt8135-mmc", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, msdc_of_ids);
-
 static struct platform_driver mt_msdc_driver = {
 	.probe = msdc_drv_probe,
 	.remove = msdc_drv_remove,
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 58d74b8d6c79..210247b3d11a 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -508,9 +508,9 @@ static irqreturn_t mvsd_irq(int irq, void *dev)
 	return IRQ_NONE;
 }
 
-static void mvsd_timeout_timer(unsigned long data)
+static void mvsd_timeout_timer(struct timer_list *t)
 {
-	struct mvsd_host *host = (struct mvsd_host *)data;
+	struct mvsd_host *host = from_timer(host, t, timer);
 	void __iomem *iobase = host->base;
 	struct mmc_request *mrq;
 	unsigned long flags;
@@ -776,7 +776,7 @@ static int mvsd_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	setup_timer(&host->timer, mvsd_timeout_timer, (unsigned long)host);
+	timer_setup(&host->timer, mvsd_timeout_timer, 0);
 	platform_set_drvdata(pdev, mmc);
 	ret = mmc_add_host(mmc);
 	if (ret)
diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index 1d5418e4efae..5ff8ef7223cc 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -963,10 +963,9 @@ static bool filter(struct dma_chan *chan, void *param)
 	return true;
 }
 
-static void mxcmci_watchdog(unsigned long data)
+static void mxcmci_watchdog(struct timer_list *t)
 {
-	struct mmc_host *mmc = (struct mmc_host *)data;
-	struct mxcmci_host *host = mmc_priv(mmc);
+	struct mxcmci_host *host = from_timer(host, t, watchdog);
 	struct mmc_request *req = host->req;
 	unsigned int stat = mxcmci_readl(host, MMC_REG_STATUS);
 
@@ -1075,7 +1074,7 @@ static int mxcmci_probe(struct platform_device *pdev)
 		dat3_card_detect = true;
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		goto out_free;
 
 	if (!mmc->ocr_avail) {
@@ -1165,9 +1164,7 @@ static int mxcmci_probe(struct platform_device *pdev)
 			goto out_free_dma;
 	}
 
-	init_timer(&host->watchdog);
-	host->watchdog.function = &mxcmci_watchdog;
-	host->watchdog.data = (unsigned long)mmc;
+	timer_setup(&host->watchdog, mxcmci_watchdog, 0);
 
 	mmc_add_host(mmc);
 
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index bd49f34d7654..adf32682f27a 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -625,9 +625,9 @@ static void mmc_omap_abort_command(struct work_struct *work)
 }
 
 static void
-mmc_omap_cmd_timer(unsigned long data)
+mmc_omap_cmd_timer(struct timer_list *t)
 {
-	struct mmc_omap_host *host = (struct mmc_omap_host *) data;
+	struct mmc_omap_host *host = from_timer(host, t, cmd_abort_timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&host->slot_lock, flags);
@@ -654,9 +654,9 @@ mmc_omap_sg_to_buf(struct mmc_omap_host *host)
 }
 
 static void
-mmc_omap_clk_timer(unsigned long data)
+mmc_omap_clk_timer(struct timer_list *t)
 {
-	struct mmc_omap_host *host = (struct mmc_omap_host *) data;
+	struct mmc_omap_host *host = from_timer(host, t, clk_timer);
 
 	mmc_omap_fclk_enable(host, 0);
 }
@@ -874,9 +874,9 @@ void omap_mmc_notify_cover_event(struct device *dev, int num, int is_closed)
 	tasklet_hi_schedule(&slot->cover_tasklet);
 }
 
-static void mmc_omap_cover_timer(unsigned long arg)
+static void mmc_omap_cover_timer(struct timer_list *t)
 {
-	struct mmc_omap_slot *slot = (struct mmc_omap_slot *) arg;
+	struct mmc_omap_slot *slot = from_timer(slot, t, cover_timer);
 	tasklet_schedule(&slot->cover_tasklet);
 }
 
@@ -1264,8 +1264,7 @@ static int mmc_omap_new_slot(struct mmc_omap_host *host, int id)
 	mmc->max_seg_size = mmc->max_req_size;
 
 	if (slot->pdata->get_cover_state != NULL) {
-		setup_timer(&slot->cover_timer, mmc_omap_cover_timer,
-			    (unsigned long)slot);
+		timer_setup(&slot->cover_timer, mmc_omap_cover_timer, 0);
 		tasklet_init(&slot->cover_tasklet, mmc_omap_cover_handler,
 			     (unsigned long)slot);
 	}
@@ -1352,11 +1351,10 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	INIT_WORK(&host->send_stop_work, mmc_omap_send_stop_work);
 
 	INIT_WORK(&host->cmd_abort_work, mmc_omap_abort_command);
-	setup_timer(&host->cmd_abort_timer, mmc_omap_cmd_timer,
-		    (unsigned long) host);
+	timer_setup(&host->cmd_abort_timer, mmc_omap_cmd_timer, 0);
 
 	spin_lock_init(&host->clk_lock);
-	setup_timer(&host->clk_timer, mmc_omap_clk_timer, (unsigned long) host);
+	timer_setup(&host->clk_timer, mmc_omap_clk_timer, 0);
 
 	spin_lock_init(&host->dma_lock);
 	spin_lock_init(&host->slot_lock);
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 3b5e6d11069b..071693ebfe18 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -147,10 +147,6 @@
 #define OMAP_MMC_MAX_CLOCK	52000000
 #define DRIVER_NAME		"omap_hsmmc"
 
-#define VDD_1V8			1800000		/* 180000 uV */
-#define VDD_3V0			3000000		/* 300000 uV */
-#define VDD_165_195		(ffs(MMC_VDD_165_195) - 1)
-
 /*
  * One controller can have multiple slots, like on some omap boards using
  * omap.c controller driver. Luckily this is not currently done on any known
@@ -308,8 +304,7 @@ err_set_ocr:
 	return ret;
 }
 
-static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on,
-				int vdd)
+static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on)
 {
 	int ret;
 
@@ -317,17 +312,6 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on,
 		return 0;
 
 	if (power_on) {
-		if (vdd <= VDD_165_195)
-			ret = regulator_set_voltage(host->pbias, VDD_1V8,
-						    VDD_1V8);
-		else
-			ret = regulator_set_voltage(host->pbias, VDD_3V0,
-						    VDD_3V0);
-		if (ret < 0) {
-			dev_err(host->dev, "pbias set voltage fail\n");
-			return ret;
-		}
-
 		if (host->pbias_enabled == 0) {
 			ret = regulator_enable(host->pbias);
 			if (ret) {
@@ -350,8 +334,7 @@ static int omap_hsmmc_set_pbias(struct omap_hsmmc_host *host, bool power_on,
 	return 0;
 }
 
-static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
-				int vdd)
+static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on)
 {
 	struct mmc_host *mmc = host->mmc;
 	int ret = 0;
@@ -363,7 +346,7 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
 	if (IS_ERR(mmc->supply.vmmc))
 		return 0;
 
-	ret = omap_hsmmc_set_pbias(host, false, 0);
+	ret = omap_hsmmc_set_pbias(host, false);
 	if (ret)
 		return ret;
 
@@ -385,7 +368,7 @@ static int omap_hsmmc_set_power(struct omap_hsmmc_host *host, int power_on,
 		if (ret)
 			return ret;
 
-		ret = omap_hsmmc_set_pbias(host, true, vdd);
+		ret = omap_hsmmc_set_pbias(host, true);
 		if (ret)
 			goto err_set_voltage;
 	} else {
@@ -462,7 +445,7 @@ static int omap_hsmmc_reg_get(struct omap_hsmmc_host *host)
 
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		return ret;
 
 	/* Allow an aux regulator */
@@ -1220,11 +1203,11 @@ static int omap_hsmmc_switch_opcond(struct omap_hsmmc_host *host, int vdd)
 		clk_disable_unprepare(host->dbclk);
 
 	/* Turn the power off */
-	ret = omap_hsmmc_set_power(host, 0, 0);
+	ret = omap_hsmmc_set_power(host, 0);
 
 	/* Turn the power ON with given VDD 1.8 or 3.0v */
 	if (!ret)
-		ret = omap_hsmmc_set_power(host, 1, vdd);
+		ret = omap_hsmmc_set_power(host, 1);
 	if (host->dbclk)
 		clk_prepare_enable(host->dbclk);
 
@@ -1621,10 +1604,10 @@ static void omap_hsmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	if (ios->power_mode != host->power_mode) {
 		switch (ios->power_mode) {
 		case MMC_POWER_OFF:
-			omap_hsmmc_set_power(host, 0, 0);
+			omap_hsmmc_set_power(host, 0);
 			break;
 		case MMC_POWER_UP:
-			omap_hsmmc_set_power(host, 1, ios->vdd);
+			omap_hsmmc_set_power(host, 1);
 			break;
 		case MMC_POWER_ON:
 			do_send_init_stream = 1;
diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 59ab194cb009..c763b404510f 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -702,11 +702,7 @@ static int pxamci_probe(struct platform_device *pdev)
 
 	pxamci_init_ocr(host);
 
-	/*
-	 * This architecture used to disable bounce buffers through its
-	 * defconfig, now it is done at runtime as a host property.
-	 */
-	mmc->caps = MMC_CAP_NO_BOUNCE_BUFF;
+	mmc->caps = 0;
 	host->cmdat = 0;
 	if (!cpu_is_pxa25x()) {
 		mmc->caps |= MMC_CAP_4_BIT_DATA | MMC_CAP_SDIO_IRQ;
diff --git a/drivers/mmc/host/pxamci.h b/drivers/mmc/host/pxamci.h
index f6c2e2fcce37..d301ca18c5d4 100644
--- a/drivers/mmc/host/pxamci.h
+++ b/drivers/mmc/host/pxamci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define MMC_STRPCL	0x0000
 #define STOP_CLOCK		(1 << 0)
 #define START_CLOCK		(2 << 0)
diff --git a/drivers/mmc/host/renesas_sdhi_internal_dmac.c b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
index f905f2361d12..41cbe84c1d18 100644
--- a/drivers/mmc/host/renesas_sdhi_internal_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_internal_dmac.c
@@ -88,6 +88,7 @@ static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
 static const struct of_device_id renesas_sdhi_internal_dmac_of_match[] = {
 	{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
 	{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
+	{ .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, },
 	{},
 };
 MODULE_DEVICE_TABLE(of, renesas_sdhi_internal_dmac_of_match);
@@ -146,11 +147,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
 	WARN_ON(host->sg_len > 1);
 
 	/* This DMAC cannot handle if buffer is not 8-bytes alignment */
-	if (!IS_ALIGNED(sg->offset, 8)) {
-		host->force_pio = true;
-		renesas_sdhi_internal_dmac_enable_dma(host, false);
-		return;
-	}
+	if (!IS_ALIGNED(sg->offset, 8))
+		goto force_pio;
 
 	if (data->flags & MMC_DATA_READ) {
 		dtran_mode |= DTRAN_MODE_CH_NUM_CH1;
@@ -163,8 +161,8 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
 	}
 
 	ret = dma_map_sg(&host->pdev->dev, sg, host->sg_len, dir);
-	if (ret < 0)
-		return;
+	if (ret == 0)
+		goto force_pio;
 
 	renesas_sdhi_internal_dmac_enable_dma(host, true);
 
@@ -176,6 +174,12 @@ renesas_sdhi_internal_dmac_start_dma(struct tmio_mmc_host *host,
 					    dtran_mode);
 	renesas_sdhi_internal_dmac_dm_write(host, DM_DTRAN_ADDR,
 					    sg->dma_address);
+
+	return;
+
+force_pio:
+	host->force_pio = true;
+	renesas_sdhi_internal_dmac_enable_dma(host, false);
 }
 
 static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg)
diff --git a/drivers/mmc/host/renesas_sdhi_sys_dmac.c b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
index df4465439e13..9ab10436e4b8 100644
--- a/drivers/mmc/host/renesas_sdhi_sys_dmac.c
+++ b/drivers/mmc/host/renesas_sdhi_sys_dmac.c
@@ -91,7 +91,6 @@ static const struct renesas_sdhi_of_data of_rcar_gen3_compatible = {
 };
 
 static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
-	{ .compatible = "renesas,sdhi-shmobile" },
 	{ .compatible = "renesas,sdhi-sh73a0", .data = &of_default_cfg, },
 	{ .compatible = "renesas,sdhi-r8a73a4", .data = &of_default_cfg, },
 	{ .compatible = "renesas,sdhi-r8a7740", .data = &of_default_cfg, },
@@ -107,6 +106,10 @@ static const struct of_device_id renesas_sdhi_sys_dmac_of_match[] = {
 	{ .compatible = "renesas,sdhi-r8a7794", .data = &of_rcar_gen2_compatible, },
 	{ .compatible = "renesas,sdhi-r8a7795", .data = &of_rcar_gen3_compatible, },
 	{ .compatible = "renesas,sdhi-r8a7796", .data = &of_rcar_gen3_compatible, },
+	{ .compatible = "renesas,rcar-gen1-sdhi", .data = &of_rcar_gen1_compatible, },
+	{ .compatible = "renesas,rcar-gen2-sdhi", .data = &of_rcar_gen2_compatible, },
+	{ .compatible = "renesas,rcar-gen3-sdhi", .data = &of_rcar_gen3_compatible, },
+	{ .compatible = "renesas,sdhi-shmobile" },
 	{},
 };
 MODULE_DEVICE_TABLE(of, renesas_sdhi_sys_dmac_of_match);
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 41b57713b620..0848dc0f882e 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -618,29 +618,22 @@ static int sd_change_phase(struct realtek_pci_sdmmc *host,
 		u8 sample_point, bool rx)
 {
 	struct rtsx_pcr *pcr = host->pcr;
-	int err;
 
 	dev_dbg(sdmmc_dev(host), "%s(%s): sample_point = %d\n",
 			__func__, rx ? "RX" : "TX", sample_point);
 
-	rtsx_pci_init_cmd(pcr);
-
-	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_CTL, CHANGE_CLK, CHANGE_CLK);
+	rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, CHANGE_CLK);
 	if (rx)
-		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
-				SD_VPRX_CTL, 0x1F, sample_point);
+		rtsx_pci_write_register(pcr, SD_VPRX_CTL,
+			PHASE_SELECT_MASK, sample_point);
 	else
-		rtsx_pci_add_cmd(pcr, WRITE_REG_CMD,
-				SD_VPTX_CTL, 0x1F, sample_point);
-	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
-	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_VPCLK0_CTL,
-			PHASE_NOT_RESET, PHASE_NOT_RESET);
-	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_CTL, CHANGE_CLK, 0);
-	rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
-
-	err = rtsx_pci_send_cmd(pcr, 100);
-	if (err < 0)
-		return err;
+		rtsx_pci_write_register(pcr, SD_VPTX_CTL,
+			PHASE_SELECT_MASK, sample_point);
+	rtsx_pci_write_register(pcr, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
+	rtsx_pci_write_register(pcr, SD_VPCLK0_CTL, PHASE_NOT_RESET,
+				PHASE_NOT_RESET);
+	rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, 0);
+	rtsx_pci_write_register(pcr, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
 
 	return 0;
 }
@@ -708,10 +701,12 @@ static int sd_tuning_rx_cmd(struct realtek_pci_sdmmc *host,
 {
 	int err;
 	struct mmc_command cmd = {};
+	struct rtsx_pcr *pcr = host->pcr;
 
-	err = sd_change_phase(host, sample_point, true);
-	if (err < 0)
-		return err;
+	sd_change_phase(host, sample_point, true);
+
+	rtsx_pci_write_register(pcr, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN,
+		SD_RSP_80CLK_TIMEOUT_EN);
 
 	cmd.opcode = opcode;
 	err = sd_read_data(host, &cmd, 0x40, NULL, 0, 100);
@@ -719,9 +714,12 @@ static int sd_tuning_rx_cmd(struct realtek_pci_sdmmc *host,
 		/* Wait till SD DATA IDLE */
 		sd_wait_data_idle(host);
 		sd_clear_error(host);
+		rtsx_pci_write_register(pcr, SD_CFG3,
+			SD_RSP_80CLK_TIMEOUT_EN, 0);
 		return err;
 	}
 
+	rtsx_pci_write_register(pcr, SD_CFG3, SD_RSP_80CLK_TIMEOUT_EN, 0);
 	return 0;
 }
 
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 08ae0ff13513..b988997a1e80 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -73,6 +73,7 @@ struct sdhci_acpi_slot {
 	unsigned int	caps2;
 	mmc_pm_flag_t	pm_caps;
 	unsigned int	flags;
+	size_t		priv_size;
 	int (*probe_slot)(struct platform_device *, const char *, const char *);
 	int (*remove_slot)(struct platform_device *);
 };
@@ -82,13 +83,118 @@ struct sdhci_acpi_host {
 	const struct sdhci_acpi_slot	*slot;
 	struct platform_device		*pdev;
 	bool				use_runtime_pm;
+	unsigned long			private[0] ____cacheline_aligned;
 };
 
+static inline void *sdhci_acpi_priv(struct sdhci_acpi_host *c)
+{
+	return (void *)c->private;
+}
+
 static inline bool sdhci_acpi_flag(struct sdhci_acpi_host *c, unsigned int flag)
 {
 	return c->slot && (c->slot->flags & flag);
 }
 
+enum {
+	INTEL_DSM_FNS		=  0,
+	INTEL_DSM_V18_SWITCH	=  3,
+	INTEL_DSM_V33_SWITCH	=  4,
+};
+
+struct intel_host {
+	u32	dsm_fns;
+};
+
+static const guid_t intel_dsm_guid =
+	GUID_INIT(0xF6C13EA5, 0x65CD, 0x461F,
+		  0xAB, 0x7A, 0x29, 0xF7, 0xE8, 0xD5, 0xBD, 0x61);
+
+static int __intel_dsm(struct intel_host *intel_host, struct device *dev,
+		       unsigned int fn, u32 *result)
+{
+	union acpi_object *obj;
+	int err = 0;
+
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(dev), &intel_dsm_guid, 0, fn, NULL);
+	if (!obj)
+		return -EOPNOTSUPP;
+
+	if (obj->type == ACPI_TYPE_INTEGER) {
+		*result = obj->integer.value;
+	} else if (obj->type == ACPI_TYPE_BUFFER && obj->buffer.length > 0) {
+		size_t len = min_t(size_t, obj->buffer.length, 4);
+
+		*result = 0;
+		memcpy(result, obj->buffer.pointer, len);
+	} else {
+		dev_err(dev, "%s DSM fn %u obj->type %d obj->buffer.length %d\n",
+			__func__, fn, obj->type, obj->buffer.length);
+		err = -EINVAL;
+	}
+
+	ACPI_FREE(obj);
+
+	return err;
+}
+
+static int intel_dsm(struct intel_host *intel_host, struct device *dev,
+		     unsigned int fn, u32 *result)
+{
+	if (fn > 31 || !(intel_host->dsm_fns & (1 << fn)))
+		return -EOPNOTSUPP;
+
+	return __intel_dsm(intel_host, dev, fn, result);
+}
+
+static void intel_dsm_init(struct intel_host *intel_host, struct device *dev,
+			   struct mmc_host *mmc)
+{
+	int err;
+
+	err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
+	if (err) {
+		pr_debug("%s: DSM not supported, error %d\n",
+			 mmc_hostname(mmc), err);
+		return;
+	}
+
+	pr_debug("%s: DSM function mask %#x\n",
+		 mmc_hostname(mmc), intel_host->dsm_fns);
+}
+
+static int intel_start_signal_voltage_switch(struct mmc_host *mmc,
+					     struct mmc_ios *ios)
+{
+	struct device *dev = mmc_dev(mmc);
+	struct sdhci_acpi_host *c = dev_get_drvdata(dev);
+	struct intel_host *intel_host = sdhci_acpi_priv(c);
+	unsigned int fn;
+	u32 result = 0;
+	int err;
+
+	err = sdhci_start_signal_voltage_switch(mmc, ios);
+	if (err)
+		return err;
+
+	switch (ios->signal_voltage) {
+	case MMC_SIGNAL_VOLTAGE_330:
+		fn = INTEL_DSM_V33_SWITCH;
+		break;
+	case MMC_SIGNAL_VOLTAGE_180:
+		fn = INTEL_DSM_V18_SWITCH;
+		break;
+	default:
+		return 0;
+	}
+
+	err = intel_dsm(intel_host, dev, fn, &result);
+	pr_debug("%s: %s DSM fn %u error %d result %u\n",
+		 mmc_hostname(mmc), __func__, fn, err, result);
+
+	return 0;
+}
+
 static void sdhci_acpi_int_hw_reset(struct sdhci_host *host)
 {
 	u8 reg;
@@ -269,56 +375,26 @@ out:
 	return ret;
 }
 
-static int sdhci_acpi_emmc_probe_slot(struct platform_device *pdev,
-				      const char *hid, const char *uid)
+static int intel_probe_slot(struct platform_device *pdev, const char *hid,
+			    const char *uid)
 {
 	struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
-	struct sdhci_host *host;
-
-	if (!c || !c->host)
-		return 0;
-
-	host = c->host;
-
-	/* Platform specific code during emmc probe slot goes here */
+	struct intel_host *intel_host = sdhci_acpi_priv(c);
+	struct sdhci_host *host = c->host;
 
 	if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") &&
 	    sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 &&
 	    sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807)
 		host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
 
-	return 0;
-}
-
-static int sdhci_acpi_sdio_probe_slot(struct platform_device *pdev,
-				      const char *hid, const char *uid)
-{
-	struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
-
-	if (!c || !c->host)
-		return 0;
-
-	/* Platform specific code during sdio probe slot goes here */
-
-	return 0;
-}
-
-static int sdhci_acpi_sd_probe_slot(struct platform_device *pdev,
-				    const char *hid, const char *uid)
-{
-	struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
-	struct sdhci_host *host;
-
-	if (!c || !c->host || !c->slot)
-		return 0;
-
-	host = c->host;
-
-	/* Platform specific code during sd probe slot goes here */
-
 	if (hid && !strcmp(hid, "80865ACA"))
 		host->mmc_host_ops.get_cd = bxt_get_cd;
 
+	intel_dsm_init(intel_host, &pdev->dev, host->mmc);
+
+	host->mmc_host_ops.start_signal_voltage_switch =
+					intel_start_signal_voltage_switch;
+
 	return 0;
 }
 
@@ -332,7 +408,8 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_emmc = {
 	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
 		   SDHCI_QUIRK2_STOP_WITH_TC |
 		   SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400,
-	.probe_slot	= sdhci_acpi_emmc_probe_slot,
+	.probe_slot	= intel_probe_slot,
+	.priv_size	= sizeof(struct intel_host),
 };
 
 static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
@@ -343,7 +420,8 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sdio = {
 		   MMC_CAP_WAIT_WHILE_BUSY,
 	.flags   = SDHCI_ACPI_RUNTIME_PM,
 	.pm_caps = MMC_PM_KEEP_POWER,
-	.probe_slot	= sdhci_acpi_sdio_probe_slot,
+	.probe_slot	= intel_probe_slot,
+	.priv_size	= sizeof(struct intel_host),
 };
 
 static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
@@ -353,7 +431,8 @@ static const struct sdhci_acpi_slot sdhci_acpi_slot_int_sd = {
 	.quirks2 = SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON |
 		   SDHCI_QUIRK2_STOP_WITH_TC,
 	.caps    = MMC_CAP_WAIT_WHILE_BUSY | MMC_CAP_AGGRESSIVE_PM,
-	.probe_slot	= sdhci_acpi_sd_probe_slot,
+	.probe_slot	= intel_probe_slot,
+	.priv_size	= sizeof(struct intel_host),
 };
 
 static const struct sdhci_acpi_slot sdhci_acpi_slot_qcom_sd_3v = {
@@ -429,11 +508,13 @@ static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid,
 static int sdhci_acpi_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
+	const struct sdhci_acpi_slot *slot;
 	struct acpi_device *device, *child;
 	struct sdhci_acpi_host *c;
 	struct sdhci_host *host;
 	struct resource *iomem;
 	resource_size_t len;
+	size_t priv_size;
 	const char *hid;
 	const char *uid;
 	int err;
@@ -443,7 +524,9 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	hid = acpi_device_hid(device);
-	uid = device->pnp.unique_id;
+	uid = acpi_device_uid(device);
+
+	slot = sdhci_acpi_get_slot(hid, uid);
 
 	/* Power on the SDHCI controller and its children */
 	acpi_device_fix_up_power(device);
@@ -467,13 +550,14 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 	if (!devm_request_mem_region(dev, iomem->start, len, dev_name(dev)))
 		return -ENOMEM;
 
-	host = sdhci_alloc_host(dev, sizeof(struct sdhci_acpi_host));
+	priv_size = slot ? slot->priv_size : 0;
+	host = sdhci_alloc_host(dev, sizeof(struct sdhci_acpi_host) + priv_size);
 	if (IS_ERR(host))
 		return PTR_ERR(host);
 
 	c = sdhci_priv(host);
 	c->host = host;
-	c->slot = sdhci_acpi_get_slot(hid, uid);
+	c->slot = slot;
 	c->pdev = pdev;
 	c->use_runtime_pm = sdhci_acpi_flag(c, SDHCI_ACPI_RUNTIME_PM);
 
diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index 56529c3d389a..0f589e26ee63 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -13,6 +13,7 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/bitfield.h>
 #include <linux/bitops.h>
 #include <linux/iopoll.h>
 #include <linux/module.h>
@@ -27,15 +28,14 @@
 #define   SDHCI_CDNS_HRS04_ACK			BIT(26)
 #define   SDHCI_CDNS_HRS04_RD			BIT(25)
 #define   SDHCI_CDNS_HRS04_WR			BIT(24)
-#define   SDHCI_CDNS_HRS04_RDATA_SHIFT		16
-#define   SDHCI_CDNS_HRS04_WDATA_SHIFT		8
-#define   SDHCI_CDNS_HRS04_ADDR_SHIFT		0
+#define   SDHCI_CDNS_HRS04_RDATA		GENMASK(23, 16)
+#define   SDHCI_CDNS_HRS04_WDATA		GENMASK(15, 8)
+#define   SDHCI_CDNS_HRS04_ADDR			GENMASK(5, 0)
 
 #define SDHCI_CDNS_HRS06		0x18		/* eMMC control */
 #define   SDHCI_CDNS_HRS06_TUNE_UP		BIT(15)
-#define   SDHCI_CDNS_HRS06_TUNE_SHIFT		8
-#define   SDHCI_CDNS_HRS06_TUNE_MASK		0x3f
-#define   SDHCI_CDNS_HRS06_MODE_MASK		0x7
+#define   SDHCI_CDNS_HRS06_TUNE			GENMASK(13, 8)
+#define   SDHCI_CDNS_HRS06_MODE			GENMASK(2, 0)
 #define   SDHCI_CDNS_HRS06_MODE_SD		0x0
 #define   SDHCI_CDNS_HRS06_MODE_MMC_SDR		0x2
 #define   SDHCI_CDNS_HRS06_MODE_MMC_DDR		0x3
@@ -105,8 +105,8 @@ static int sdhci_cdns_write_phy_reg(struct sdhci_cdns_priv *priv,
 	u32 tmp;
 	int ret;
 
-	tmp = (data << SDHCI_CDNS_HRS04_WDATA_SHIFT) |
-	      (addr << SDHCI_CDNS_HRS04_ADDR_SHIFT);
+	tmp = FIELD_PREP(SDHCI_CDNS_HRS04_WDATA, data) |
+	      FIELD_PREP(SDHCI_CDNS_HRS04_ADDR, addr);
 	writel(tmp, reg);
 
 	tmp |= SDHCI_CDNS_HRS04_WR;
@@ -189,8 +189,8 @@ static void sdhci_cdns_set_emmc_mode(struct sdhci_cdns_priv *priv, u32 mode)
 
 	/* The speed mode for eMMC is selected by HRS06 register */
 	tmp = readl(priv->hrs_addr + SDHCI_CDNS_HRS06);
-	tmp &= ~SDHCI_CDNS_HRS06_MODE_MASK;
-	tmp |= mode;
+	tmp &= ~SDHCI_CDNS_HRS06_MODE;
+	tmp |= FIELD_PREP(SDHCI_CDNS_HRS06_MODE, mode);
 	writel(tmp, priv->hrs_addr + SDHCI_CDNS_HRS06);
 }
 
@@ -199,7 +199,7 @@ static u32 sdhci_cdns_get_emmc_mode(struct sdhci_cdns_priv *priv)
 	u32 tmp;
 
 	tmp = readl(priv->hrs_addr + SDHCI_CDNS_HRS06);
-	return tmp & SDHCI_CDNS_HRS06_MODE_MASK;
+	return FIELD_GET(SDHCI_CDNS_HRS06_MODE, tmp);
 }
 
 static void sdhci_cdns_set_uhs_signaling(struct sdhci_host *host,
@@ -254,12 +254,12 @@ static int sdhci_cdns_set_tune_val(struct sdhci_host *host, unsigned int val)
 	void __iomem *reg = priv->hrs_addr + SDHCI_CDNS_HRS06;
 	u32 tmp;
 
-	if (WARN_ON(val > SDHCI_CDNS_HRS06_TUNE_MASK))
+	if (WARN_ON(!FIELD_FIT(SDHCI_CDNS_HRS06_TUNE, val)))
 		return -EINVAL;
 
 	tmp = readl(reg);
-	tmp &= ~(SDHCI_CDNS_HRS06_TUNE_MASK << SDHCI_CDNS_HRS06_TUNE_SHIFT);
-	tmp |= val << SDHCI_CDNS_HRS06_TUNE_SHIFT;
+	tmp &= ~SDHCI_CDNS_HRS06_TUNE;
+	tmp |= FIELD_PREP(SDHCI_CDNS_HRS06_TUNE, val);
 	tmp |= SDHCI_CDNS_HRS06_TUNE_UP;
 	writel(tmp, reg);
 
diff --git a/drivers/mmc/host/sdhci-msm.c b/drivers/mmc/host/sdhci-msm.c
index fc73e56eb1e2..3fb7d2eec93f 100644
--- a/drivers/mmc/host/sdhci-msm.c
+++ b/drivers/mmc/host/sdhci-msm.c
@@ -123,14 +123,17 @@
 #define CMUX_SHIFT_PHASE_MASK	(7 << CMUX_SHIFT_PHASE_SHIFT)
 
 #define MSM_MMC_AUTOSUSPEND_DELAY_MS	50
+
+/* Timeout value to avoid infinite waiting for pwr_irq */
+#define MSM_PWR_IRQ_TIMEOUT_MS 5000
+
 struct sdhci_msm_host {
 	struct platform_device *pdev;
 	void __iomem *core_mem;	/* MSM SDCC mapped address */
 	int pwr_irq;		/* power irq */
-	struct clk *clk;	/* main SD/MMC bus clock */
-	struct clk *pclk;	/* SDHC peripheral bus clock */
 	struct clk *bus_clk;	/* SDHC bus voter clock */
 	struct clk *xo_clk;	/* TCXO clk needed for FLL feature of cm_dll*/
+	struct clk_bulk_data bulk_clks[4]; /* core, iface, cal, sleep clocks */
 	unsigned long clk_rate;
 	struct mmc_host *mmc;
 	bool use_14lpp_dll_reset;
@@ -138,6 +141,10 @@ struct sdhci_msm_host {
 	bool calibration_done;
 	u8 saved_tuning_phase;
 	bool use_cdclp533;
+	u32 curr_pwr_state;
+	u32 curr_io_level;
+	wait_queue_head_t pwr_irq_wait;
+	bool pwr_irq_flag;
 };
 
 static unsigned int msm_get_clock_rate_for_bus_mode(struct sdhci_host *host,
@@ -164,10 +171,11 @@ static void msm_set_clock_rate_for_bus_mode(struct sdhci_host *host,
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
 	struct mmc_ios curr_ios = host->mmc->ios;
+	struct clk *core_clk = msm_host->bulk_clks[0].clk;
 	int rc;
 
 	clock = msm_get_clock_rate_for_bus_mode(host, clock);
-	rc = clk_set_rate(msm_host->clk, clock);
+	rc = clk_set_rate(core_clk, clock);
 	if (rc) {
 		pr_err("%s: Failed to set clock at rate %u at timing %d\n",
 		       mmc_hostname(host->mmc), clock,
@@ -176,7 +184,7 @@ static void msm_set_clock_rate_for_bus_mode(struct sdhci_host *host,
 	}
 	msm_host->clk_rate = clock;
 	pr_debug("%s: Setting clock at rate %lu at timing %d\n",
-		 mmc_hostname(host->mmc), clk_get_rate(msm_host->clk),
+		 mmc_hostname(host->mmc), clk_get_rate(core_clk),
 		 curr_ios.timing);
 }
 
@@ -995,21 +1003,142 @@ static void sdhci_msm_set_uhs_signaling(struct sdhci_host *host,
 		sdhci_msm_hs400(host, &mmc->ios);
 }
 
-static void sdhci_msm_voltage_switch(struct sdhci_host *host)
+static inline void sdhci_msm_init_pwr_irq_wait(struct sdhci_msm_host *msm_host)
+{
+	init_waitqueue_head(&msm_host->pwr_irq_wait);
+}
+
+static inline void sdhci_msm_complete_pwr_irq_wait(
+		struct sdhci_msm_host *msm_host)
+{
+	wake_up(&msm_host->pwr_irq_wait);
+}
+
+/*
+ * sdhci_msm_check_power_status API should be called when registers writes
+ * which can toggle sdhci IO bus ON/OFF or change IO lines HIGH/LOW happens.
+ * To what state the register writes will change the IO lines should be passed
+ * as the argument req_type. This API will check whether the IO line's state
+ * is already the expected state and will wait for power irq only if
+ * power irq is expected to be trigerred based on the current IO line state
+ * and expected IO line state.
+ */
+static void sdhci_msm_check_power_status(struct sdhci_host *host, u32 req_type)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	bool done = false;
+
+	pr_debug("%s: %s: request %d curr_pwr_state %x curr_io_level %x\n",
+			mmc_hostname(host->mmc), __func__, req_type,
+			msm_host->curr_pwr_state, msm_host->curr_io_level);
+
+	/*
+	 * The IRQ for request type IO High/LOW will be generated when -
+	 * there is a state change in 1.8V enable bit (bit 3) of
+	 * SDHCI_HOST_CONTROL2 register. The reset state of that bit is 0
+	 * which indicates 3.3V IO voltage. So, when MMC core layer tries
+	 * to set it to 3.3V before card detection happens, the
+	 * IRQ doesn't get triggered as there is no state change in this bit.
+	 * The driver already handles this case by changing the IO voltage
+	 * level to high as part of controller power up sequence. Hence, check
+	 * for host->pwr to handle a case where IO voltage high request is
+	 * issued even before controller power up.
+	 */
+	if ((req_type & REQ_IO_HIGH) && !host->pwr) {
+		pr_debug("%s: do not wait for power IRQ that never comes, req_type: %d\n",
+				mmc_hostname(host->mmc), req_type);
+		return;
+	}
+	if ((req_type & msm_host->curr_pwr_state) ||
+			(req_type & msm_host->curr_io_level))
+		done = true;
+	/*
+	 * This is needed here to handle cases where register writes will
+	 * not change the current bus state or io level of the controller.
+	 * In this case, no power irq will be triggerred and we should
+	 * not wait.
+	 */
+	if (!done) {
+		if (!wait_event_timeout(msm_host->pwr_irq_wait,
+				msm_host->pwr_irq_flag,
+				msecs_to_jiffies(MSM_PWR_IRQ_TIMEOUT_MS)))
+			dev_warn(&msm_host->pdev->dev,
+				 "%s: pwr_irq for req: (%d) timed out\n",
+				 mmc_hostname(host->mmc), req_type);
+	}
+	pr_debug("%s: %s: request %d done\n", mmc_hostname(host->mmc),
+			__func__, req_type);
+}
+
+static void sdhci_msm_dump_pwr_ctrl_regs(struct sdhci_host *host)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+
+	pr_err("%s: PWRCTL_STATUS: 0x%08x | PWRCTL_MASK: 0x%08x | PWRCTL_CTL: 0x%08x\n",
+			mmc_hostname(host->mmc),
+			readl_relaxed(msm_host->core_mem + CORE_PWRCTL_STATUS),
+			readl_relaxed(msm_host->core_mem + CORE_PWRCTL_MASK),
+			readl_relaxed(msm_host->core_mem + CORE_PWRCTL_CTL));
+}
+
+static void sdhci_msm_handle_pwr_irq(struct sdhci_host *host, int irq)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
 	u32 irq_status, irq_ack = 0;
+	int retry = 10;
+	int pwr_state = 0, io_level = 0;
+
 
 	irq_status = readl_relaxed(msm_host->core_mem + CORE_PWRCTL_STATUS);
 	irq_status &= INT_MASK;
 
 	writel_relaxed(irq_status, msm_host->core_mem + CORE_PWRCTL_CLEAR);
 
-	if (irq_status & (CORE_PWRCTL_BUS_ON | CORE_PWRCTL_BUS_OFF))
+	/*
+	 * There is a rare HW scenario where the first clear pulse could be
+	 * lost when actual reset and clear/read of status register is
+	 * happening at a time. Hence, retry for at least 10 times to make
+	 * sure status register is cleared. Otherwise, this will result in
+	 * a spurious power IRQ resulting in system instability.
+	 */
+	while (irq_status & readl_relaxed(msm_host->core_mem +
+				CORE_PWRCTL_STATUS)) {
+		if (retry == 0) {
+			pr_err("%s: Timedout clearing (0x%x) pwrctl status register\n",
+					mmc_hostname(host->mmc), irq_status);
+			sdhci_msm_dump_pwr_ctrl_regs(host);
+			WARN_ON(1);
+			break;
+		}
+		writel_relaxed(irq_status,
+				msm_host->core_mem + CORE_PWRCTL_CLEAR);
+		retry--;
+		udelay(10);
+	}
+
+	/* Handle BUS ON/OFF*/
+	if (irq_status & CORE_PWRCTL_BUS_ON) {
+		pwr_state = REQ_BUS_ON;
+		io_level = REQ_IO_HIGH;
+		irq_ack |= CORE_PWRCTL_BUS_SUCCESS;
+	}
+	if (irq_status & CORE_PWRCTL_BUS_OFF) {
+		pwr_state = REQ_BUS_OFF;
+		io_level = REQ_IO_LOW;
 		irq_ack |= CORE_PWRCTL_BUS_SUCCESS;
-	if (irq_status & (CORE_PWRCTL_IO_LOW | CORE_PWRCTL_IO_HIGH))
+	}
+	/* Handle IO LOW/HIGH */
+	if (irq_status & CORE_PWRCTL_IO_LOW) {
+		io_level = REQ_IO_LOW;
+		irq_ack |= CORE_PWRCTL_IO_SUCCESS;
+	}
+	if (irq_status & CORE_PWRCTL_IO_HIGH) {
+		io_level = REQ_IO_HIGH;
 		irq_ack |= CORE_PWRCTL_IO_SUCCESS;
+	}
 
 	/*
 	 * The driver has to acknowledge the interrupt, switch voltages and
@@ -1017,13 +1146,27 @@ static void sdhci_msm_voltage_switch(struct sdhci_host *host)
 	 * switches are handled by the sdhci core, so just report success.
 	 */
 	writel_relaxed(irq_ack, msm_host->core_mem + CORE_PWRCTL_CTL);
+
+	if (pwr_state)
+		msm_host->curr_pwr_state = pwr_state;
+	if (io_level)
+		msm_host->curr_io_level = io_level;
+
+	pr_debug("%s: %s: Handled IRQ(%d), irq_status=0x%x, ack=0x%x\n",
+		mmc_hostname(msm_host->mmc), __func__, irq, irq_status,
+		irq_ack);
 }
 
 static irqreturn_t sdhci_msm_pwr_irq(int irq, void *data)
 {
 	struct sdhci_host *host = (struct sdhci_host *)data;
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+
+	sdhci_msm_handle_pwr_irq(host, irq);
+	msm_host->pwr_irq_flag = 1;
+	sdhci_msm_complete_pwr_irq_wait(msm_host);
 
-	sdhci_msm_voltage_switch(host);
 
 	return IRQ_HANDLED;
 }
@@ -1032,8 +1175,9 @@ static unsigned int sdhci_msm_get_max_clock(struct sdhci_host *host)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	struct clk *core_clk = msm_host->bulk_clks[0].clk;
 
-	return clk_round_rate(msm_host->clk, ULONG_MAX);
+	return clk_round_rate(core_clk, ULONG_MAX);
 }
 
 static unsigned int sdhci_msm_get_min_clock(struct sdhci_host *host)
@@ -1092,6 +1236,69 @@ out:
 	__sdhci_msm_set_clock(host, clock);
 }
 
+/*
+ * Platform specific register write functions. This is so that, if any
+ * register write needs to be followed up by platform specific actions,
+ * they can be added here. These functions can go to sleep when writes
+ * to certain registers are done.
+ * These functions are relying on sdhci_set_ios not using spinlock.
+ */
+static int __sdhci_msm_check_write(struct sdhci_host *host, u16 val, int reg)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
+	u32 req_type = 0;
+
+	switch (reg) {
+	case SDHCI_HOST_CONTROL2:
+		req_type = (val & SDHCI_CTRL_VDD_180) ? REQ_IO_LOW :
+			REQ_IO_HIGH;
+		break;
+	case SDHCI_SOFTWARE_RESET:
+		if (host->pwr && (val & SDHCI_RESET_ALL))
+			req_type = REQ_BUS_OFF;
+		break;
+	case SDHCI_POWER_CONTROL:
+		req_type = !val ? REQ_BUS_OFF : REQ_BUS_ON;
+		break;
+	}
+
+	if (req_type) {
+		msm_host->pwr_irq_flag = 0;
+		/*
+		 * Since this register write may trigger a power irq, ensure
+		 * all previous register writes are complete by this point.
+		 */
+		mb();
+	}
+	return req_type;
+}
+
+/* This function may sleep*/
+static void sdhci_msm_writew(struct sdhci_host *host, u16 val, int reg)
+{
+	u32 req_type = 0;
+
+	req_type = __sdhci_msm_check_write(host, val, reg);
+	writew_relaxed(val, host->ioaddr + reg);
+
+	if (req_type)
+		sdhci_msm_check_power_status(host, req_type);
+}
+
+/* This function may sleep*/
+static void sdhci_msm_writeb(struct sdhci_host *host, u8 val, int reg)
+{
+	u32 req_type = 0;
+
+	req_type = __sdhci_msm_check_write(host, val, reg);
+
+	writeb_relaxed(val, host->ioaddr + reg);
+
+	if (req_type)
+		sdhci_msm_check_power_status(host, req_type);
+}
+
 static const struct of_device_id sdhci_msm_dt_match[] = {
 	{ .compatible = "qcom,sdhci-msm-v4" },
 	{},
@@ -1106,7 +1313,8 @@ static const struct sdhci_ops sdhci_msm_ops = {
 	.get_max_clock = sdhci_msm_get_max_clock,
 	.set_bus_width = sdhci_set_bus_width,
 	.set_uhs_signaling = sdhci_msm_set_uhs_signaling,
-	.voltage_switch = sdhci_msm_voltage_switch,
+	.write_w = sdhci_msm_writew,
+	.write_b = sdhci_msm_writeb,
 };
 
 static const struct sdhci_pltfm_data sdhci_msm_pdata = {
@@ -1124,6 +1332,7 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_msm_host *msm_host;
 	struct resource *core_memres;
+	struct clk *clk;
 	int ret;
 	u16 host_version, core_minor;
 	u32 core_version, config;
@@ -1160,24 +1369,42 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 	}
 
 	/* Setup main peripheral bus clock */
-	msm_host->pclk = devm_clk_get(&pdev->dev, "iface");
-	if (IS_ERR(msm_host->pclk)) {
-		ret = PTR_ERR(msm_host->pclk);
+	clk = devm_clk_get(&pdev->dev, "iface");
+	if (IS_ERR(clk)) {
+		ret = PTR_ERR(clk);
 		dev_err(&pdev->dev, "Peripheral clk setup failed (%d)\n", ret);
 		goto bus_clk_disable;
 	}
-
-	ret = clk_prepare_enable(msm_host->pclk);
-	if (ret)
-		goto bus_clk_disable;
+	msm_host->bulk_clks[1].clk = clk;
 
 	/* Setup SDC MMC clock */
-	msm_host->clk = devm_clk_get(&pdev->dev, "core");
-	if (IS_ERR(msm_host->clk)) {
-		ret = PTR_ERR(msm_host->clk);
+	clk = devm_clk_get(&pdev->dev, "core");
+	if (IS_ERR(clk)) {
+		ret = PTR_ERR(clk);
 		dev_err(&pdev->dev, "SDC MMC clk setup failed (%d)\n", ret);
-		goto pclk_disable;
+		goto bus_clk_disable;
 	}
+	msm_host->bulk_clks[0].clk = clk;
+
+	/* Vote for maximum clock rate for maximum performance */
+	ret = clk_set_rate(clk, INT_MAX);
+	if (ret)
+		dev_warn(&pdev->dev, "core clock boost failed\n");
+
+	clk = devm_clk_get(&pdev->dev, "cal");
+	if (IS_ERR(clk))
+		clk = NULL;
+	msm_host->bulk_clks[2].clk = clk;
+
+	clk = devm_clk_get(&pdev->dev, "sleep");
+	if (IS_ERR(clk))
+		clk = NULL;
+	msm_host->bulk_clks[3].clk = clk;
+
+	ret = clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks),
+				      msm_host->bulk_clks);
+	if (ret)
+		goto bus_clk_disable;
 
 	/*
 	 * xo clock is needed for FLL feature of cm_dll.
@@ -1189,15 +1416,6 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, "TCXO clk not present (%d)\n", ret);
 	}
 
-	/* Vote for maximum clock rate for maximum performance */
-	ret = clk_set_rate(msm_host->clk, INT_MAX);
-	if (ret)
-		dev_warn(&pdev->dev, "core clock boost failed\n");
-
-	ret = clk_prepare_enable(msm_host->clk);
-	if (ret)
-		goto pclk_disable;
-
 	core_memres = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	msm_host->core_mem = devm_ioremap_resource(&pdev->dev, core_memres);
 
@@ -1251,6 +1469,21 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 			       CORE_VENDOR_SPEC_CAPABILITIES0);
 	}
 
+	/*
+	 * Power on reset state may trigger power irq if previous status of
+	 * PWRCTL was either BUS_ON or IO_HIGH_V. So before enabling pwr irq
+	 * interrupt in GIC, any pending power irq interrupt should be
+	 * acknowledged. Otherwise power irq interrupt handler would be
+	 * fired prematurely.
+	 */
+	sdhci_msm_handle_pwr_irq(host, 0);
+
+	/*
+	 * Ensure that above writes are propogated before interrupt enablement
+	 * in GIC.
+	 */
+	mb();
+
 	/* Setup IRQ for handling power/voltage tasks with PMIC */
 	msm_host->pwr_irq = platform_get_irq_byname(pdev, "pwr_irq");
 	if (msm_host->pwr_irq < 0) {
@@ -1260,6 +1493,10 @@ static int sdhci_msm_probe(struct platform_device *pdev)
 		goto clk_disable;
 	}
 
+	sdhci_msm_init_pwr_irq_wait(msm_host);
+	/* Enable pwr irq interrupts */
+	writel_relaxed(INT_MASK, msm_host->core_mem + CORE_PWRCTL_MASK);
+
 	ret = devm_request_threaded_irq(&pdev->dev, msm_host->pwr_irq, NULL,
 					sdhci_msm_pwr_irq, IRQF_ONESHOT,
 					dev_name(&pdev->dev), host);
@@ -1290,9 +1527,8 @@ pm_runtime_disable:
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 clk_disable:
-	clk_disable_unprepare(msm_host->clk);
-pclk_disable:
-	clk_disable_unprepare(msm_host->pclk);
+	clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
+				   msm_host->bulk_clks);
 bus_clk_disable:
 	if (!IS_ERR(msm_host->bus_clk))
 		clk_disable_unprepare(msm_host->bus_clk);
@@ -1315,8 +1551,8 @@ static int sdhci_msm_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 
-	clk_disable_unprepare(msm_host->clk);
-	clk_disable_unprepare(msm_host->pclk);
+	clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
+				   msm_host->bulk_clks);
 	if (!IS_ERR(msm_host->bus_clk))
 		clk_disable_unprepare(msm_host->bus_clk);
 	sdhci_pltfm_free(pdev);
@@ -1330,8 +1566,8 @@ static int sdhci_msm_runtime_suspend(struct device *dev)
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
 
-	clk_disable_unprepare(msm_host->clk);
-	clk_disable_unprepare(msm_host->pclk);
+	clk_bulk_disable_unprepare(ARRAY_SIZE(msm_host->bulk_clks),
+				   msm_host->bulk_clks);
 
 	return 0;
 }
@@ -1341,21 +1577,9 @@ static int sdhci_msm_runtime_resume(struct device *dev)
 	struct sdhci_host *host = dev_get_drvdata(dev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct sdhci_msm_host *msm_host = sdhci_pltfm_priv(pltfm_host);
-	int ret;
 
-	ret = clk_prepare_enable(msm_host->clk);
-	if (ret) {
-		dev_err(dev, "clk_enable failed for core_clk: %d\n", ret);
-		return ret;
-	}
-	ret = clk_prepare_enable(msm_host->pclk);
-	if (ret) {
-		dev_err(dev, "clk_enable failed for iface_clk: %d\n", ret);
-		clk_disable_unprepare(msm_host->clk);
-		return ret;
-	}
-
-	return 0;
+	return clk_bulk_prepare_enable(ARRAY_SIZE(msm_host->bulk_clks),
+				       msm_host->bulk_clks);
 }
 #endif
 
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index 4e47ed6bc716..682c573e20a7 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -114,7 +114,8 @@ static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode,
 	sdhci_set_power_noreg(host, mode, vdd);
 }
 
-void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing)
+static void sdhci_at91_set_uhs_signaling(struct sdhci_host *host,
+					 unsigned int timing)
 {
 	if (timing == MMC_TIMING_MMC_DDR52)
 		sdhci_writeb(host, SDMMC_MC1R_DDR, SDMMC_MC1R);
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index d96a057a7db8..1f424374bbbb 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -458,6 +458,33 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
 	return clock / 256 / 16;
 }
 
+static void esdhc_clock_enable(struct sdhci_host *host, bool enable)
+{
+	u32 val;
+	ktime_t timeout;
+
+	val = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
+
+	if (enable)
+		val |= ESDHC_CLOCK_SDCLKEN;
+	else
+		val &= ~ESDHC_CLOCK_SDCLKEN;
+
+	sdhci_writel(host, val, ESDHC_SYSTEM_CONTROL);
+
+	/* Wait max 20 ms */
+	timeout = ktime_add_ms(ktime_get(), 20);
+	val = ESDHC_CLOCK_STABLE;
+	while (!(sdhci_readl(host, ESDHC_PRSSTAT) & val)) {
+		if (ktime_after(ktime_get(), timeout)) {
+			pr_err("%s: Internal clock never stabilised.\n",
+				mmc_hostname(host->mmc));
+			break;
+		}
+		udelay(10);
+	}
+}
+
 static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
@@ -469,8 +496,10 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
 
 	host->mmc->actual_clock = 0;
 
-	if (clock == 0)
+	if (clock == 0) {
+		esdhc_clock_enable(host, false);
 		return;
+	}
 
 	/* Workaround to start pre_div at 2 for VNN < VENDOR_V_23 */
 	if (esdhc->vendor_ver < VENDOR_V_23)
@@ -558,33 +587,6 @@ static void esdhc_pltfm_set_bus_width(struct sdhci_host *host, int width)
 	sdhci_writel(host, ctrl, ESDHC_PROCTL);
 }
 
-static void esdhc_clock_enable(struct sdhci_host *host, bool enable)
-{
-	u32 val;
-	ktime_t timeout;
-
-	val = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
-
-	if (enable)
-		val |= ESDHC_CLOCK_SDCLKEN;
-	else
-		val &= ~ESDHC_CLOCK_SDCLKEN;
-
-	sdhci_writel(host, val, ESDHC_SYSTEM_CONTROL);
-
-	/* Wait max 20 ms */
-	timeout = ktime_add_ms(ktime_get(), 20);
-	val = ESDHC_CLOCK_STABLE;
-	while (!(sdhci_readl(host, ESDHC_PRSSTAT) & val)) {
-		if (ktime_after(ktime_get(), timeout)) {
-			pr_err("%s: Internal clock never stabilised.\n",
-				mmc_hostname(host->mmc));
-			break;
-		}
-		udelay(10);
-	}
-}
-
 static void esdhc_reset(struct sdhci_host *host, u8 mask)
 {
 	sdhci_reset(host, mask);
diff --git a/drivers/mmc/host/sdhci-omap.c b/drivers/mmc/host/sdhci-omap.c
new file mode 100644
index 000000000000..628bfe9a3d17
--- /dev/null
+++ b/drivers/mmc/host/sdhci-omap.c
@@ -0,0 +1,607 @@
+/**
+ * SDHCI Controller driver for TI's OMAP SoCs
+ *
+ * Copyright (C) 2017 Texas Instruments
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 of
+ * the License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/delay.h>
+#include <linux/mmc/slot-gpio.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+
+#include "sdhci-pltfm.h"
+
+#define SDHCI_OMAP_CON		0x12c
+#define CON_DW8			BIT(5)
+#define CON_DMA_MASTER		BIT(20)
+#define CON_INIT		BIT(1)
+#define CON_OD			BIT(0)
+
+#define SDHCI_OMAP_CMD		0x20c
+
+#define SDHCI_OMAP_HCTL		0x228
+#define HCTL_SDBP		BIT(8)
+#define HCTL_SDVS_SHIFT		9
+#define HCTL_SDVS_MASK		(0x7 << HCTL_SDVS_SHIFT)
+#define HCTL_SDVS_33		(0x7 << HCTL_SDVS_SHIFT)
+#define HCTL_SDVS_30		(0x6 << HCTL_SDVS_SHIFT)
+#define HCTL_SDVS_18		(0x5 << HCTL_SDVS_SHIFT)
+
+#define SDHCI_OMAP_SYSCTL	0x22c
+#define SYSCTL_CEN		BIT(2)
+#define SYSCTL_CLKD_SHIFT	6
+#define SYSCTL_CLKD_MASK	0x3ff
+
+#define SDHCI_OMAP_STAT		0x230
+
+#define SDHCI_OMAP_IE		0x234
+#define INT_CC_EN		BIT(0)
+
+#define SDHCI_OMAP_AC12		0x23c
+#define AC12_V1V8_SIGEN		BIT(19)
+
+#define SDHCI_OMAP_CAPA		0x240
+#define CAPA_VS33		BIT(24)
+#define CAPA_VS30		BIT(25)
+#define CAPA_VS18		BIT(26)
+
+#define SDHCI_OMAP_TIMEOUT	1		/* 1 msec */
+
+#define SYSCTL_CLKD_MAX		0x3FF
+
+#define IOV_1V8			1800000		/* 180000 uV */
+#define IOV_3V0			3000000		/* 300000 uV */
+#define IOV_3V3			3300000		/* 330000 uV */
+
+struct sdhci_omap_data {
+	u32 offset;
+};
+
+struct sdhci_omap_host {
+	void __iomem		*base;
+	struct device		*dev;
+	struct	regulator	*pbias;
+	bool			pbias_enabled;
+	struct sdhci_host	*host;
+	u8			bus_mode;
+	u8			power_mode;
+};
+
+static inline u32 sdhci_omap_readl(struct sdhci_omap_host *host,
+				   unsigned int offset)
+{
+	return readl(host->base + offset);
+}
+
+static inline void sdhci_omap_writel(struct sdhci_omap_host *host,
+				     unsigned int offset, u32 data)
+{
+	writel(data, host->base + offset);
+}
+
+static int sdhci_omap_set_pbias(struct sdhci_omap_host *omap_host,
+				bool power_on, unsigned int iov)
+{
+	int ret;
+	struct device *dev = omap_host->dev;
+
+	if (IS_ERR(omap_host->pbias))
+		return 0;
+
+	if (power_on) {
+		ret = regulator_set_voltage(omap_host->pbias, iov, iov);
+		if (ret) {
+			dev_err(dev, "pbias set voltage failed\n");
+			return ret;
+		}
+
+		if (omap_host->pbias_enabled)
+			return 0;
+
+		ret = regulator_enable(omap_host->pbias);
+		if (ret) {
+			dev_err(dev, "pbias reg enable fail\n");
+			return ret;
+		}
+
+		omap_host->pbias_enabled = true;
+	} else {
+		if (!omap_host->pbias_enabled)
+			return 0;
+
+		ret = regulator_disable(omap_host->pbias);
+		if (ret) {
+			dev_err(dev, "pbias reg disable fail\n");
+			return ret;
+		}
+		omap_host->pbias_enabled = false;
+	}
+
+	return 0;
+}
+
+static int sdhci_omap_enable_iov(struct sdhci_omap_host *omap_host,
+				 unsigned int iov)
+{
+	int ret;
+	struct sdhci_host *host = omap_host->host;
+	struct mmc_host *mmc = host->mmc;
+
+	ret = sdhci_omap_set_pbias(omap_host, false, 0);
+	if (ret)
+		return ret;
+
+	if (!IS_ERR(mmc->supply.vqmmc)) {
+		ret = regulator_set_voltage(mmc->supply.vqmmc, iov, iov);
+		if (ret) {
+			dev_err(mmc_dev(mmc), "vqmmc set voltage failed\n");
+			return ret;
+		}
+	}
+
+	ret = sdhci_omap_set_pbias(omap_host, true, iov);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void sdhci_omap_conf_bus_power(struct sdhci_omap_host *omap_host,
+				      unsigned char signal_voltage)
+{
+	u32 reg;
+	ktime_t timeout;
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL);
+	reg &= ~HCTL_SDVS_MASK;
+
+	if (signal_voltage == MMC_SIGNAL_VOLTAGE_330)
+		reg |= HCTL_SDVS_33;
+	else
+		reg |= HCTL_SDVS_18;
+
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_HCTL, reg);
+
+	reg |= HCTL_SDBP;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_HCTL, reg);
+
+	/* wait 1ms */
+	timeout = ktime_add_ms(ktime_get(), SDHCI_OMAP_TIMEOUT);
+	while (!(sdhci_omap_readl(omap_host, SDHCI_OMAP_HCTL) & HCTL_SDBP)) {
+		if (WARN_ON(ktime_after(ktime_get(), timeout)))
+			return;
+		usleep_range(5, 10);
+	}
+}
+
+static int sdhci_omap_start_signal_voltage_switch(struct mmc_host *mmc,
+						  struct mmc_ios *ios)
+{
+	u32 reg;
+	int ret;
+	unsigned int iov;
+	struct sdhci_host *host = mmc_priv(mmc);
+	struct sdhci_pltfm_host *pltfm_host;
+	struct sdhci_omap_host *omap_host;
+	struct device *dev;
+
+	pltfm_host = sdhci_priv(host);
+	omap_host = sdhci_pltfm_priv(pltfm_host);
+	dev = omap_host->dev;
+
+	if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_330) {
+		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);
+		if (!(reg & CAPA_VS33))
+			return -EOPNOTSUPP;
+
+		sdhci_omap_conf_bus_power(omap_host, ios->signal_voltage);
+
+		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);
+		reg &= ~AC12_V1V8_SIGEN;
+		sdhci_omap_writel(omap_host, SDHCI_OMAP_AC12, reg);
+
+		iov = IOV_3V3;
+	} else if (ios->signal_voltage == MMC_SIGNAL_VOLTAGE_180) {
+		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);
+		if (!(reg & CAPA_VS18))
+			return -EOPNOTSUPP;
+
+		sdhci_omap_conf_bus_power(omap_host, ios->signal_voltage);
+
+		reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_AC12);
+		reg |= AC12_V1V8_SIGEN;
+		sdhci_omap_writel(omap_host, SDHCI_OMAP_AC12, reg);
+
+		iov = IOV_1V8;
+	} else {
+		return -EOPNOTSUPP;
+	}
+
+	ret = sdhci_omap_enable_iov(omap_host, iov);
+	if (ret) {
+		dev_err(dev, "failed to switch IO voltage to %dmV\n", iov);
+		return ret;
+	}
+
+	dev_dbg(dev, "IO voltage switched to %dmV\n", iov);
+	return 0;
+}
+
+static void sdhci_omap_set_bus_mode(struct sdhci_omap_host *omap_host,
+				    unsigned int mode)
+{
+	u32 reg;
+
+	if (omap_host->bus_mode == mode)
+		return;
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);
+	if (mode == MMC_BUSMODE_OPENDRAIN)
+		reg |= CON_OD;
+	else
+		reg &= ~CON_OD;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);
+
+	omap_host->bus_mode = mode;
+}
+
+static void sdhci_omap_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
+{
+	struct sdhci_host *host = mmc_priv(mmc);
+	struct sdhci_pltfm_host *pltfm_host;
+	struct sdhci_omap_host *omap_host;
+
+	pltfm_host = sdhci_priv(host);
+	omap_host = sdhci_pltfm_priv(pltfm_host);
+
+	sdhci_omap_set_bus_mode(omap_host, ios->bus_mode);
+	sdhci_set_ios(mmc, ios);
+}
+
+static u16 sdhci_omap_calc_divisor(struct sdhci_pltfm_host *host,
+				   unsigned int clock)
+{
+	u16 dsor;
+
+	dsor = DIV_ROUND_UP(clk_get_rate(host->clk), clock);
+	if (dsor > SYSCTL_CLKD_MAX)
+		dsor = SYSCTL_CLKD_MAX;
+
+	return dsor;
+}
+
+static void sdhci_omap_start_clock(struct sdhci_omap_host *omap_host)
+{
+	u32 reg;
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_SYSCTL);
+	reg |= SYSCTL_CEN;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_SYSCTL, reg);
+}
+
+static void sdhci_omap_stop_clock(struct sdhci_omap_host *omap_host)
+{
+	u32 reg;
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_SYSCTL);
+	reg &= ~SYSCTL_CEN;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_SYSCTL, reg);
+}
+
+static void sdhci_omap_set_clock(struct sdhci_host *host, unsigned int clock)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);
+	unsigned long clkdiv;
+
+	sdhci_omap_stop_clock(omap_host);
+
+	if (!clock)
+		return;
+
+	clkdiv = sdhci_omap_calc_divisor(pltfm_host, clock);
+	clkdiv = (clkdiv & SYSCTL_CLKD_MASK) << SYSCTL_CLKD_SHIFT;
+	sdhci_enable_clk(host, clkdiv);
+
+	sdhci_omap_start_clock(omap_host);
+}
+
+static void sdhci_omap_set_power(struct sdhci_host *host, unsigned char mode,
+			  unsigned short vdd)
+{
+	struct mmc_host *mmc = host->mmc;
+
+	mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+}
+
+static int sdhci_omap_enable_dma(struct sdhci_host *host)
+{
+	u32 reg;
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);
+	reg |= CON_DMA_MASTER;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);
+
+	return 0;
+}
+
+static unsigned int sdhci_omap_get_min_clock(struct sdhci_host *host)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+
+	return clk_get_rate(pltfm_host->clk) / SYSCTL_CLKD_MAX;
+}
+
+static void sdhci_omap_set_bus_width(struct sdhci_host *host, int width)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);
+	u32 reg;
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);
+	if (width == MMC_BUS_WIDTH_8)
+		reg |= CON_DW8;
+	else
+		reg &= ~CON_DW8;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);
+
+	sdhci_set_bus_width(host, width);
+}
+
+static void sdhci_omap_init_74_clocks(struct sdhci_host *host, u8 power_mode)
+{
+	u32 reg;
+	ktime_t timeout;
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct sdhci_omap_host *omap_host = sdhci_pltfm_priv(pltfm_host);
+
+	if (omap_host->power_mode == power_mode)
+		return;
+
+	if (power_mode != MMC_POWER_ON)
+		return;
+
+	disable_irq(host->irq);
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);
+	reg |= CON_INIT;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CMD, 0x0);
+
+	/* wait 1ms */
+	timeout = ktime_add_ms(ktime_get(), SDHCI_OMAP_TIMEOUT);
+	while (!(sdhci_omap_readl(omap_host, SDHCI_OMAP_STAT) & INT_CC_EN)) {
+		if (WARN_ON(ktime_after(ktime_get(), timeout)))
+			return;
+		usleep_range(5, 10);
+	}
+
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CON);
+	reg &= ~CON_INIT;
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CON, reg);
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_STAT, INT_CC_EN);
+
+	enable_irq(host->irq);
+
+	omap_host->power_mode = power_mode;
+}
+
+static struct sdhci_ops sdhci_omap_ops = {
+	.set_clock = sdhci_omap_set_clock,
+	.set_power = sdhci_omap_set_power,
+	.enable_dma = sdhci_omap_enable_dma,
+	.get_max_clock = sdhci_pltfm_clk_get_max_clock,
+	.get_min_clock = sdhci_omap_get_min_clock,
+	.set_bus_width = sdhci_omap_set_bus_width,
+	.platform_send_init_74_clocks = sdhci_omap_init_74_clocks,
+	.reset = sdhci_reset,
+	.set_uhs_signaling = sdhci_set_uhs_signaling,
+};
+
+static int sdhci_omap_set_capabilities(struct sdhci_omap_host *omap_host)
+{
+	u32 reg;
+	int ret = 0;
+	struct device *dev = omap_host->dev;
+	struct regulator *vqmmc;
+
+	vqmmc = regulator_get(dev, "vqmmc");
+	if (IS_ERR(vqmmc)) {
+		ret = PTR_ERR(vqmmc);
+		goto reg_put;
+	}
+
+	/* voltage capabilities might be set by boot loader, clear it */
+	reg = sdhci_omap_readl(omap_host, SDHCI_OMAP_CAPA);
+	reg &= ~(CAPA_VS18 | CAPA_VS30 | CAPA_VS33);
+
+	if (regulator_is_supported_voltage(vqmmc, IOV_3V3, IOV_3V3))
+		reg |= CAPA_VS33;
+	if (regulator_is_supported_voltage(vqmmc, IOV_1V8, IOV_1V8))
+		reg |= CAPA_VS18;
+
+	sdhci_omap_writel(omap_host, SDHCI_OMAP_CAPA, reg);
+
+reg_put:
+	regulator_put(vqmmc);
+
+	return ret;
+}
+
+static const struct sdhci_pltfm_data sdhci_omap_pdata = {
+	.quirks = SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+		  SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
+		  SDHCI_QUIRK_NO_HISPD_BIT |
+		  SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC,
+	.quirks2 = SDHCI_QUIRK2_NO_1_8_V |
+		   SDHCI_QUIRK2_ACMD23_BROKEN |
+		   SDHCI_QUIRK2_RSP_136_HAS_CRC,
+	.ops = &sdhci_omap_ops,
+};
+
+static const struct sdhci_omap_data dra7_data = {
+	.offset = 0x200,
+};
+
+static const struct of_device_id omap_sdhci_match[] = {
+	{ .compatible = "ti,dra7-sdhci", .data = &dra7_data },
+	{},
+};
+MODULE_DEVICE_TABLE(of, omap_sdhci_match);
+
+static int sdhci_omap_probe(struct platform_device *pdev)
+{
+	int ret;
+	u32 offset;
+	struct device *dev = &pdev->dev;
+	struct sdhci_host *host;
+	struct sdhci_pltfm_host *pltfm_host;
+	struct sdhci_omap_host *omap_host;
+	struct mmc_host *mmc;
+	const struct of_device_id *match;
+	struct sdhci_omap_data *data;
+
+	match = of_match_device(omap_sdhci_match, dev);
+	if (!match)
+		return -EINVAL;
+
+	data = (struct sdhci_omap_data *)match->data;
+	if (!data) {
+		dev_err(dev, "no sdhci omap data\n");
+		return -EINVAL;
+	}
+	offset = data->offset;
+
+	host = sdhci_pltfm_init(pdev, &sdhci_omap_pdata,
+				sizeof(*omap_host));
+	if (IS_ERR(host)) {
+		dev_err(dev, "Failed sdhci_pltfm_init\n");
+		return PTR_ERR(host);
+	}
+
+	pltfm_host = sdhci_priv(host);
+	omap_host = sdhci_pltfm_priv(pltfm_host);
+	omap_host->host = host;
+	omap_host->base = host->ioaddr;
+	omap_host->dev = dev;
+	host->ioaddr += offset;
+
+	mmc = host->mmc;
+	ret = mmc_of_parse(mmc);
+	if (ret)
+		goto err_pltfm_free;
+
+	pltfm_host->clk = devm_clk_get(dev, "fck");
+	if (IS_ERR(pltfm_host->clk)) {
+		ret = PTR_ERR(pltfm_host->clk);
+		goto err_pltfm_free;
+	}
+
+	ret = clk_set_rate(pltfm_host->clk, mmc->f_max);
+	if (ret) {
+		dev_err(dev, "failed to set clock to %d\n", mmc->f_max);
+		goto err_pltfm_free;
+	}
+
+	omap_host->pbias = devm_regulator_get_optional(dev, "pbias");
+	if (IS_ERR(omap_host->pbias)) {
+		ret = PTR_ERR(omap_host->pbias);
+		if (ret != -ENODEV)
+			goto err_pltfm_free;
+		dev_dbg(dev, "unable to get pbias regulator %d\n", ret);
+	}
+	omap_host->pbias_enabled = false;
+
+	/*
+	 * omap_device_pm_domain has callbacks to enable the main
+	 * functional clock, interface clock and also configure the
+	 * SYSCONFIG register of omap devices. The callback will be invoked
+	 * as part of pm_runtime_get_sync.
+	 */
+	pm_runtime_enable(dev);
+	ret = pm_runtime_get_sync(dev);
+	if (ret < 0) {
+		dev_err(dev, "pm_runtime_get_sync failed\n");
+		pm_runtime_put_noidle(dev);
+		goto err_rpm_disable;
+	}
+
+	ret = sdhci_omap_set_capabilities(omap_host);
+	if (ret) {
+		dev_err(dev, "failed to set system capabilities\n");
+		goto err_put_sync;
+	}
+
+	host->mmc_host_ops.get_ro = mmc_gpio_get_ro;
+	host->mmc_host_ops.start_signal_voltage_switch =
+					sdhci_omap_start_signal_voltage_switch;
+	host->mmc_host_ops.set_ios = sdhci_omap_set_ios;
+
+	sdhci_read_caps(host);
+	host->caps |= SDHCI_CAN_DO_ADMA2;
+
+	ret = sdhci_add_host(host);
+	if (ret)
+		goto err_put_sync;
+
+	return 0;
+
+err_put_sync:
+	pm_runtime_put_sync(dev);
+
+err_rpm_disable:
+	pm_runtime_disable(dev);
+
+err_pltfm_free:
+	sdhci_pltfm_free(pdev);
+	return ret;
+}
+
+static int sdhci_omap_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct sdhci_host *host = platform_get_drvdata(pdev);
+
+	sdhci_remove_host(host, true);
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
+	sdhci_pltfm_free(pdev);
+
+	return 0;
+}
+
+static struct platform_driver sdhci_omap_driver = {
+	.probe = sdhci_omap_probe,
+	.remove = sdhci_omap_remove,
+	.driver = {
+		   .name = "sdhci-omap",
+		   .of_match_table = omap_sdhci_match,
+		  },
+};
+
+module_platform_driver(sdhci_omap_driver);
+
+MODULE_DESCRIPTION("SDHCI driver for OMAP SoCs");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sdhci_omap");
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index bbaddf18a1b3..3e4f04fd5175 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -32,7 +32,6 @@
 
 #include "sdhci.h"
 #include "sdhci-pci.h"
-#include "sdhci-pci-o2micro.h"
 
 static int sdhci_pci_enable_dma(struct sdhci_host *host);
 static void sdhci_pci_hw_reset(struct sdhci_host *host);
@@ -392,6 +391,7 @@ static const struct sdhci_pci_fixes sdhci_intel_pch_sdio = {
 
 enum {
 	INTEL_DSM_FNS		=  0,
+	INTEL_DSM_V18_SWITCH	=  3,
 	INTEL_DSM_DRV_STRENGTH	=  9,
 	INTEL_DSM_D3_RETUNE	= 10,
 };
@@ -447,6 +447,8 @@ static void intel_dsm_init(struct intel_host *intel_host, struct device *dev,
 	int err;
 	u32 val;
 
+	intel_host->d3_retune = true;
+
 	err = __intel_dsm(intel_host, dev, INTEL_DSM_FNS, &intel_host->dsm_fns);
 	if (err) {
 		pr_debug("%s: DSM not supported, error %d\n",
@@ -557,6 +559,19 @@ static void intel_hs400_enhanced_strobe(struct mmc_host *mmc,
 	sdhci_writel(host, val, INTEL_HS400_ES_REG);
 }
 
+static void sdhci_intel_voltage_switch(struct sdhci_host *host)
+{
+	struct sdhci_pci_slot *slot = sdhci_priv(host);
+	struct intel_host *intel_host = sdhci_pci_priv(slot);
+	struct device *dev = &slot->chip->pdev->dev;
+	u32 result = 0;
+	int err;
+
+	err = intel_dsm(intel_host, dev, INTEL_DSM_V18_SWITCH, &result);
+	pr_debug("%s: %s DSM error %d result %u\n",
+		 mmc_hostname(host->mmc), __func__, err, result);
+}
+
 static const struct sdhci_ops sdhci_intel_byt_ops = {
 	.set_clock		= sdhci_set_clock,
 	.set_power		= sdhci_intel_set_power,
@@ -565,6 +580,7 @@ static const struct sdhci_ops sdhci_intel_byt_ops = {
 	.reset			= sdhci_reset,
 	.set_uhs_signaling	= sdhci_set_uhs_signaling,
 	.hw_reset		= sdhci_pci_hw_reset,
+	.voltage_switch		= sdhci_intel_voltage_switch,
 };
 
 static void byt_read_dsm(struct sdhci_pci_slot *slot)
@@ -781,15 +797,6 @@ static const struct sdhci_pci_fixes sdhci_intel_mrfld_mmc = {
 	.probe_slot	= intel_mrfld_mmc_probe_slot,
 };
 
-/* O2Micro extra registers */
-#define O2_SD_LOCK_WP		0xD3
-#define O2_SD_MULTI_VCC3V	0xEE
-#define O2_SD_CLKREQ		0xEC
-#define O2_SD_CAPS		0xE0
-#define O2_SD_ADMA1		0xE2
-#define O2_SD_ADMA2		0xE7
-#define O2_SD_INF_MOD		0xF1
-
 static int jmicron_pmos(struct sdhci_pci_chip *chip, int on)
 {
 	u8 scratch;
@@ -1273,6 +1280,7 @@ static const struct pci_device_id pci_ids[] = {
 	SDHCI_PCI_DEVICE(INTEL, SPT_SDIO,  intel_byt_sdio),
 	SDHCI_PCI_DEVICE(INTEL, SPT_SD,    intel_byt_sd),
 	SDHCI_PCI_DEVICE(INTEL, DNV_EMMC,  intel_byt_emmc),
+	SDHCI_PCI_DEVICE(INTEL, CDF_EMMC,  intel_glk_emmc),
 	SDHCI_PCI_DEVICE(INTEL, BXT_EMMC,  intel_byt_emmc),
 	SDHCI_PCI_DEVICE(INTEL, BXT_SDIO,  intel_byt_sdio),
 	SDHCI_PCI_DEVICE(INTEL, BXT_SD,    intel_byt_sd),
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.c b/drivers/mmc/host/sdhci-pci-o2micro.c
index 14273ca00641..555970a29c94 100644
--- a/drivers/mmc/host/sdhci-pci-o2micro.c
+++ b/drivers/mmc/host/sdhci-pci-o2micro.c
@@ -19,7 +19,40 @@
 
 #include "sdhci.h"
 #include "sdhci-pci.h"
-#include "sdhci-pci-o2micro.h"
+
+/*
+ * O2Micro device registers
+ */
+
+#define O2_SD_MISC_REG5		0x64
+#define O2_SD_LD0_CTRL		0x68
+#define O2_SD_DEV_CTRL		0x88
+#define O2_SD_LOCK_WP		0xD3
+#define O2_SD_TEST_REG		0xD4
+#define O2_SD_FUNC_REG0		0xDC
+#define O2_SD_MULTI_VCC3V	0xEE
+#define O2_SD_CLKREQ		0xEC
+#define O2_SD_CAPS		0xE0
+#define O2_SD_ADMA1		0xE2
+#define O2_SD_ADMA2		0xE7
+#define O2_SD_INF_MOD		0xF1
+#define O2_SD_MISC_CTRL4	0xFC
+#define O2_SD_TUNING_CTRL	0x300
+#define O2_SD_PLL_SETTING	0x304
+#define O2_SD_CLK_SETTING	0x328
+#define O2_SD_CAP_REG2		0x330
+#define O2_SD_CAP_REG0		0x334
+#define O2_SD_UHS1_CAP_SETTING	0x33C
+#define O2_SD_DELAY_CTRL	0x350
+#define O2_SD_UHS2_L1_CTRL	0x35C
+#define O2_SD_FUNC_REG3		0x3E0
+#define O2_SD_FUNC_REG4		0x3E4
+#define O2_SD_LED_ENABLE	BIT(6)
+#define O2_SD_FREG0_LEDOFF	BIT(13)
+#define O2_SD_FREG4_ENABLE_CLK_SET	BIT(22)
+
+#define O2_SD_VENDOR_SETTING	0x110
+#define O2_SD_VENDOR_SETTING2	0x1C8
 
 static void o2_pci_set_baseclk(struct sdhci_pci_chip *chip, u32 value)
 {
diff --git a/drivers/mmc/host/sdhci-pci-o2micro.h b/drivers/mmc/host/sdhci-pci-o2micro.h
deleted file mode 100644
index 770f53857211..000000000000
--- a/drivers/mmc/host/sdhci-pci-o2micro.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright (C) 2013 BayHub Technology Ltd.
- *
- * Authors: Peter Guo <peter.guo@bayhubtech.com>
- *          Adam Lee <adam.lee@canonical.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef __SDHCI_PCI_O2MICRO_H
-#define __SDHCI_PCI_O2MICRO_H
-
-#include "sdhci-pci.h"
-
-/*
- * O2Micro device IDs
- */
-
-#define PCI_DEVICE_ID_O2_SDS0		0x8420
-#define PCI_DEVICE_ID_O2_SDS1		0x8421
-#define PCI_DEVICE_ID_O2_FUJIN2		0x8520
-#define PCI_DEVICE_ID_O2_SEABIRD0	0x8620
-#define PCI_DEVICE_ID_O2_SEABIRD1	0x8621
-
-/*
- * O2Micro device registers
- */
-
-#define O2_SD_MISC_REG5		0x64
-#define O2_SD_LD0_CTRL		0x68
-#define O2_SD_DEV_CTRL		0x88
-#define O2_SD_LOCK_WP		0xD3
-#define O2_SD_TEST_REG		0xD4
-#define O2_SD_FUNC_REG0		0xDC
-#define O2_SD_MULTI_VCC3V	0xEE
-#define O2_SD_CLKREQ		0xEC
-#define O2_SD_CAPS		0xE0
-#define O2_SD_ADMA1		0xE2
-#define O2_SD_ADMA2		0xE7
-#define O2_SD_INF_MOD		0xF1
-#define O2_SD_MISC_CTRL4	0xFC
-#define O2_SD_TUNING_CTRL	0x300
-#define O2_SD_PLL_SETTING	0x304
-#define O2_SD_CLK_SETTING	0x328
-#define O2_SD_CAP_REG2		0x330
-#define O2_SD_CAP_REG0		0x334
-#define O2_SD_UHS1_CAP_SETTING	0x33C
-#define O2_SD_DELAY_CTRL	0x350
-#define O2_SD_UHS2_L1_CTRL	0x35C
-#define O2_SD_FUNC_REG3		0x3E0
-#define O2_SD_FUNC_REG4		0x3E4
-#define O2_SD_LED_ENABLE	BIT(6)
-#define O2_SD_FREG0_LEDOFF	BIT(13)
-#define O2_SD_FREG4_ENABLE_CLK_SET	BIT(22)
-
-#define O2_SD_VENDOR_SETTING	0x110
-#define O2_SD_VENDOR_SETTING2	0x1C8
-
-extern int sdhci_pci_o2_probe_slot(struct sdhci_pci_slot *slot);
-
-extern int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip);
-
-extern int sdhci_pci_o2_resume(struct sdhci_pci_chip *chip);
-
-#endif /* __SDHCI_PCI_O2MICRO_H */
diff --git a/drivers/mmc/host/sdhci-pci.h b/drivers/mmc/host/sdhci-pci.h
index 75196a2b5289..0056f08a29cc 100644
--- a/drivers/mmc/host/sdhci-pci.h
+++ b/drivers/mmc/host/sdhci-pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SDHCI_PCI_H
 #define __SDHCI_PCI_H
 
@@ -5,6 +6,12 @@
  * PCI device IDs, sub IDs
  */
 
+#define PCI_DEVICE_ID_O2_SDS0		0x8420
+#define PCI_DEVICE_ID_O2_SDS1		0x8421
+#define PCI_DEVICE_ID_O2_FUJIN2		0x8520
+#define PCI_DEVICE_ID_O2_SEABIRD0	0x8620
+#define PCI_DEVICE_ID_O2_SEABIRD1	0x8621
+
 #define PCI_DEVICE_ID_INTEL_PCH_SDIO0	0x8809
 #define PCI_DEVICE_ID_INTEL_PCH_SDIO1	0x880a
 #define PCI_DEVICE_ID_INTEL_BYT_EMMC	0x0f14
@@ -25,6 +32,7 @@
 #define PCI_DEVICE_ID_INTEL_SPT_SDIO	0x9d2c
 #define PCI_DEVICE_ID_INTEL_SPT_SD	0x9d2d
 #define PCI_DEVICE_ID_INTEL_DNV_EMMC	0x19db
+#define PCI_DEVICE_ID_INTEL_CDF_EMMC	0x18db
 #define PCI_DEVICE_ID_INTEL_BXT_SD	0x0aca
 #define PCI_DEVICE_ID_INTEL_BXT_EMMC	0x0acc
 #define PCI_DEVICE_ID_INTEL_BXT_SDIO	0x0ad0
@@ -163,4 +171,10 @@ static inline void *sdhci_pci_priv(struct sdhci_pci_slot *slot)
 int sdhci_pci_resume_host(struct sdhci_pci_chip *chip);
 #endif
 
+int sdhci_pci_o2_probe_slot(struct sdhci_pci_slot *slot);
+int sdhci_pci_o2_probe(struct sdhci_pci_chip *chip);
+#ifdef CONFIG_PM_SLEEP
+int sdhci_pci_o2_resume(struct sdhci_pci_chip *chip);
+#endif
+
 #endif /* __SDHCI_PCI_H */
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index d328fcf284d1..cda83ccb2702 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -761,32 +761,24 @@ static const struct dev_pm_ops sdhci_s3c_pmops = {
 			   NULL)
 };
 
-#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212)
-static struct sdhci_s3c_drv_data exynos4_sdhci_drv_data = {
-	.no_divider = true,
-};
-#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)&exynos4_sdhci_drv_data)
-#else
-#define EXYNOS4_SDHCI_DRV_DATA ((kernel_ulong_t)NULL)
-#endif
-
 static const struct platform_device_id sdhci_s3c_driver_ids[] = {
 	{
 		.name		= "s3c-sdhci",
 		.driver_data	= (kernel_ulong_t)NULL,
-	}, {
-		.name		= "exynos4-sdhci",
-		.driver_data	= EXYNOS4_SDHCI_DRV_DATA,
 	},
 	{ }
 };
 MODULE_DEVICE_TABLE(platform, sdhci_s3c_driver_ids);
 
 #ifdef CONFIG_OF
+static struct sdhci_s3c_drv_data exynos4_sdhci_drv_data = {
+	.no_divider = true,
+};
+
 static const struct of_device_id sdhci_s3c_dt_match[] = {
 	{ .compatible = "samsung,s3c6410-sdhci", },
 	{ .compatible = "samsung,exynos4210-sdhci",
-		.data = (void *)EXYNOS4_SDHCI_DRV_DATA },
+		.data = &exynos4_sdhci_drv_data },
 	{},
 };
 MODULE_DEVICE_TABLE(of, sdhci_s3c_dt_match);
diff --git a/drivers/mmc/host/sdhci-tegra.c b/drivers/mmc/host/sdhci-tegra.c
index 0cd6fa80db66..b877c13184c2 100644
--- a/drivers/mmc/host/sdhci-tegra.c
+++ b/drivers/mmc/host/sdhci-tegra.c
@@ -422,7 +422,15 @@ static const struct sdhci_pltfm_data sdhci_tegra186_pdata = {
 		  SDHCI_QUIRK_NO_HISPD_BIT |
 		  SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC |
 		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN,
-	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN |
+		   /* SDHCI controllers on Tegra186 support 40-bit addressing.
+		    * IOVA addresses are 48-bit wide on Tegra186.
+		    * With 64-bit dma mask used for SDHCI, accesses can
+		    * be broken. Disable 64-bit dma, which would fall back
+		    * to 32-bit dma mask. Ideally 40-bit dma mask would work,
+		    * But it is not supported as of now.
+		    */
+		   SDHCI_QUIRK2_BROKEN_64_BIT_DMA,
 	.ops  = &tegra114_sdhci_ops,
 };
 
diff --git a/drivers/mmc/host/sdhci-xenon.c b/drivers/mmc/host/sdhci-xenon.c
index 2eec2e652c53..0842bbc2d7ad 100644
--- a/drivers/mmc/host/sdhci-xenon.c
+++ b/drivers/mmc/host/sdhci-xenon.c
@@ -466,6 +466,7 @@ static int xenon_probe(struct platform_device *pdev)
 {
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_host *host;
+	struct xenon_priv *priv;
 	int err;
 
 	host = sdhci_pltfm_init(pdev, &sdhci_xenon_pdata,
@@ -474,6 +475,7 @@ static int xenon_probe(struct platform_device *pdev)
 		return PTR_ERR(host);
 
 	pltfm_host = sdhci_priv(host);
+	priv = sdhci_pltfm_priv(pltfm_host);
 
 	/*
 	 * Link Xenon specific mmc_host_ops function,
@@ -491,9 +493,20 @@ static int xenon_probe(struct platform_device *pdev)
 	if (err)
 		goto free_pltfm;
 
+	priv->axi_clk = devm_clk_get(&pdev->dev, "axi");
+	if (IS_ERR(priv->axi_clk)) {
+		err = PTR_ERR(priv->axi_clk);
+		if (err == -EPROBE_DEFER)
+			goto err_clk;
+	} else {
+		err = clk_prepare_enable(priv->axi_clk);
+		if (err)
+			goto err_clk;
+	}
+
 	err = mmc_of_parse(host->mmc);
 	if (err)
-		goto err_clk;
+		goto err_clk_axi;
 
 	sdhci_get_of_property(pdev);
 
@@ -502,11 +515,11 @@ static int xenon_probe(struct platform_device *pdev)
 	/* Xenon specific dt parse */
 	err = xenon_probe_dt(pdev);
 	if (err)
-		goto err_clk;
+		goto err_clk_axi;
 
 	err = xenon_sdhc_prepare(host);
 	if (err)
-		goto err_clk;
+		goto err_clk_axi;
 
 	pm_runtime_get_noresume(&pdev->dev);
 	pm_runtime_set_active(&pdev->dev);
@@ -527,6 +540,8 @@ remove_sdhc:
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
 	xenon_sdhc_unprepare(host);
+err_clk_axi:
+	clk_disable_unprepare(priv->axi_clk);
 err_clk:
 	clk_disable_unprepare(pltfm_host->clk);
 free_pltfm:
@@ -538,6 +553,7 @@ static int xenon_remove(struct platform_device *pdev)
 {
 	struct sdhci_host *host = platform_get_drvdata(pdev);
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct xenon_priv *priv = sdhci_pltfm_priv(pltfm_host);
 
 	pm_runtime_get_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
@@ -546,7 +562,7 @@ static int xenon_remove(struct platform_device *pdev)
 	sdhci_remove_host(host, 0);
 
 	xenon_sdhc_unprepare(host);
-
+	clk_disable_unprepare(priv->axi_clk);
 	clk_disable_unprepare(pltfm_host->clk);
 
 	sdhci_pltfm_free(pdev);
diff --git a/drivers/mmc/host/sdhci-xenon.h b/drivers/mmc/host/sdhci-xenon.h
index 2bc0510c0769..9994995c7c56 100644
--- a/drivers/mmc/host/sdhci-xenon.h
+++ b/drivers/mmc/host/sdhci-xenon.h
@@ -83,6 +83,7 @@ struct xenon_priv {
 	unsigned char	bus_width;
 	unsigned char	timing;
 	unsigned int	clock;
+	struct clk      *axi_clk;
 
 	int		phy_type;
 	/*
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 0d5fcca18c9e..2f14334e42df 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2407,12 +2407,12 @@ static void sdhci_tasklet_finish(unsigned long param)
 		;
 }
 
-static void sdhci_timeout_timer(unsigned long data)
+static void sdhci_timeout_timer(struct timer_list *t)
 {
 	struct sdhci_host *host;
 	unsigned long flags;
 
-	host = (struct sdhci_host*)data;
+	host = from_timer(host, t, timer);
 
 	spin_lock_irqsave(&host->lock, flags);
 
@@ -2429,12 +2429,12 @@ static void sdhci_timeout_timer(unsigned long data)
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
-static void sdhci_timeout_data_timer(unsigned long data)
+static void sdhci_timeout_data_timer(struct timer_list *t)
 {
 	struct sdhci_host *host;
 	unsigned long flags;
 
-	host = (struct sdhci_host *)data;
+	host = from_timer(host, t, data_timer);
 
 	spin_lock_irqsave(&host->lock, flags);
 
@@ -3238,7 +3238,7 @@ int sdhci_setup_host(struct sdhci_host *host)
 	 * available.
 	 */
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		return ret;
 
 	DBG("Version:   0x%08x | Present:  0x%08x\n",
@@ -3749,9 +3749,8 @@ int __sdhci_add_host(struct sdhci_host *host)
 	tasklet_init(&host->finish_tasklet,
 		sdhci_tasklet_finish, (unsigned long)host);
 
-	setup_timer(&host->timer, sdhci_timeout_timer, (unsigned long)host);
-	setup_timer(&host->data_timer, sdhci_timeout_data_timer,
-		    (unsigned long)host);
+	timer_setup(&host->timer, sdhci_timeout_timer, 0);
+	timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0);
 
 	init_waitqueue_head(&host->buf_ready_int);
 
diff --git a/drivers/mmc/host/sdhci_f_sdh30.c b/drivers/mmc/host/sdhci_f_sdh30.c
index 111b66f5439b..04ca0d33a521 100644
--- a/drivers/mmc/host/sdhci_f_sdh30.c
+++ b/drivers/mmc/host/sdhci_f_sdh30.c
@@ -13,6 +13,7 @@
 #include <linux/err.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/property.h>
 #include <linux/clk.h>
 
 #include "sdhci-pltfm.h"
@@ -47,6 +48,7 @@ struct f_sdhost_priv {
 	struct clk *clk;
 	u32 vendor_hs200;
 	struct device *dev;
+	bool enable_cmd_dat_delay;
 };
 
 static void sdhci_f_sdh30_soft_voltage_switch(struct sdhci_host *host)
@@ -84,10 +86,19 @@ static unsigned int sdhci_f_sdh30_get_min_clock(struct sdhci_host *host)
 
 static void sdhci_f_sdh30_reset(struct sdhci_host *host, u8 mask)
 {
+	struct f_sdhost_priv *priv = sdhci_priv(host);
+	u32 ctl;
+
 	if (sdhci_readw(host, SDHCI_CLOCK_CONTROL) == 0)
 		sdhci_writew(host, 0xBC01, SDHCI_CLOCK_CONTROL);
 
 	sdhci_reset(host, mask);
+
+	if (priv->enable_cmd_dat_delay) {
+		ctl = sdhci_readl(host, F_SDH30_ESD_CONTROL);
+		ctl |= F_SDH30_CMD_DAT_DELAY;
+		sdhci_writel(host, ctl, F_SDH30_ESD_CONTROL);
+	}
 }
 
 static const struct sdhci_ops sdhci_f_sdh30_ops = {
@@ -126,6 +137,9 @@ static int sdhci_f_sdh30_probe(struct platform_device *pdev)
 	host->quirks2 = SDHCI_QUIRK2_SUPPORT_SINGLE |
 			SDHCI_QUIRK2_TUNING_WORK_AROUND;
 
+	priv->enable_cmd_dat_delay = device_property_read_bool(dev,
+						"fujitsu,cmd-dat-delay-select");
+
 	ret = mmc_of_parse(host->mmc);
 	if (ret)
 		goto err;
diff --git a/drivers/mmc/host/sunxi-mmc.c b/drivers/mmc/host/sunxi-mmc.c
index 53c970fe0873..cc98355dbdb9 100644
--- a/drivers/mmc/host/sunxi-mmc.c
+++ b/drivers/mmc/host/sunxi-mmc.c
@@ -1175,11 +1175,8 @@ static int sunxi_mmc_resource_request(struct sunxi_mmc_host *host,
 		return -EINVAL;
 
 	ret = mmc_regulator_get_supply(host->mmc);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "Could not get vmmc supply\n");
+	if (ret)
 		return ret;
-	}
 
 	host->reg_base = devm_ioremap_resource(&pdev->dev,
 			      platform_get_resource(pdev, IORESOURCE_MEM, 0));
diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 93c4b40df90a..a3d8380ab480 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -783,9 +783,9 @@ static void tifm_sd_end_cmd(unsigned long data)
 	mmc_request_done(mmc, mrq);
 }
 
-static void tifm_sd_abort(unsigned long data)
+static void tifm_sd_abort(struct timer_list *t)
 {
-	struct tifm_sd *host = (struct tifm_sd*)data;
+	struct tifm_sd *host = from_timer(host, t, timer);
 
 	pr_err("%s : card failed to respond for a long period of time "
 	       "(%x, %x)\n",
@@ -968,7 +968,7 @@ static int tifm_sd_probe(struct tifm_dev *sock)
 
 	tasklet_init(&host->finish_tasklet, tifm_sd_end_cmd,
 		     (unsigned long)host);
-	setup_timer(&host->timer, tifm_sd_abort, (unsigned long)host);
+	timer_setup(&host->timer, tifm_sd_abort, 0);
 
 	mmc->ops = &tifm_sd_ops;
 	mmc->ocr_avail = MMC_VDD_32_33 | MMC_VDD_33_34;
diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index 12cf8288d663..583bf3262df5 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -47,6 +47,7 @@
 #include <linux/mmc/sdio.h>
 #include <linux/scatterlist.h>
 #include <linux/spinlock.h>
+#include <linux/swiotlb.h>
 #include <linux/workqueue.h>
 
 #include "tmio_mmc.h"
@@ -129,50 +130,6 @@ static int tmio_mmc_next_sg(struct tmio_mmc_host *host)
 
 #define CMDREQ_TIMEOUT	5000
 
-#ifdef CONFIG_MMC_DEBUG
-
-#define STATUS_TO_TEXT(a, status, i) \
-	do { \
-		if ((status) & TMIO_STAT_##a) { \
-			if ((i)++) \
-				printk(KERN_DEBUG " | "); \
-			printk(KERN_DEBUG #a); \
-		} \
-	} while (0)
-
-static void pr_debug_status(u32 status)
-{
-	int i = 0;
-
-	pr_debug("status: %08x = ", status);
-	STATUS_TO_TEXT(CARD_REMOVE, status, i);
-	STATUS_TO_TEXT(CARD_INSERT, status, i);
-	STATUS_TO_TEXT(SIGSTATE, status, i);
-	STATUS_TO_TEXT(WRPROTECT, status, i);
-	STATUS_TO_TEXT(CARD_REMOVE_A, status, i);
-	STATUS_TO_TEXT(CARD_INSERT_A, status, i);
-	STATUS_TO_TEXT(SIGSTATE_A, status, i);
-	STATUS_TO_TEXT(CMD_IDX_ERR, status, i);
-	STATUS_TO_TEXT(STOPBIT_ERR, status, i);
-	STATUS_TO_TEXT(ILL_FUNC, status, i);
-	STATUS_TO_TEXT(CMD_BUSY, status, i);
-	STATUS_TO_TEXT(CMDRESPEND, status, i);
-	STATUS_TO_TEXT(DATAEND, status, i);
-	STATUS_TO_TEXT(CRCFAIL, status, i);
-	STATUS_TO_TEXT(DATATIMEOUT, status, i);
-	STATUS_TO_TEXT(CMDTIMEOUT, status, i);
-	STATUS_TO_TEXT(RXOVERFLOW, status, i);
-	STATUS_TO_TEXT(TXUNDERRUN, status, i);
-	STATUS_TO_TEXT(RXRDY, status, i);
-	STATUS_TO_TEXT(TXRQ, status, i);
-	STATUS_TO_TEXT(ILL_ACCESS, status, i);
-	printk("\n");
-}
-
-#else
-#define pr_debug_status(s)  do { } while (0)
-#endif
-
 static void tmio_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
 {
 	struct tmio_mmc_host *host = mmc_priv(mmc);
@@ -210,11 +167,11 @@ static void tmio_mmc_clk_start(struct tmio_mmc_host *host)
 
 	/* HW engineers overrode docs: no sleep needed on R-Car2+ */
 	if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
-		msleep(10);
+		usleep_range(10000, 11000);
 
 	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
 		sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0100);
-		msleep(10);
+		usleep_range(10000, 11000);
 	}
 }
 
@@ -222,7 +179,7 @@ static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
 {
 	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG) {
 		sd_ctrl_write16(host, CTL_CLK_AND_WAIT_CTL, 0x0000);
-		msleep(10);
+		usleep_range(10000, 11000);
 	}
 
 	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, ~CLK_CTL_SCLKEN &
@@ -230,7 +187,7 @@ static void tmio_mmc_clk_stop(struct tmio_mmc_host *host)
 
 	/* HW engineers overrode docs: no sleep needed on R-Car2+ */
 	if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
-		msleep(10);
+		usleep_range(10000, 11000);
 }
 
 static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
@@ -262,7 +219,7 @@ static void tmio_mmc_set_clock(struct tmio_mmc_host *host,
 			sd_ctrl_read16(host, CTL_SD_CARD_CLK_CTL));
 	sd_ctrl_write16(host, CTL_SD_CARD_CLK_CTL, clk & CLK_CTL_DIV_MASK);
 	if (!(host->pdata->flags & TMIO_MMC_MIN_RCAR2))
-		msleep(10);
+		usleep_range(10000, 11000);
 
 	tmio_mmc_clk_start(host);
 }
@@ -273,11 +230,11 @@ static void tmio_mmc_reset(struct tmio_mmc_host *host)
 	sd_ctrl_write16(host, CTL_RESET_SD, 0x0000);
 	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG)
 		sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0000);
-	msleep(10);
+	usleep_range(10000, 11000);
 	sd_ctrl_write16(host, CTL_RESET_SD, 0x0001);
 	if (host->pdata->flags & TMIO_MMC_HAVE_HIGH_REG)
 		sd_ctrl_write16(host, CTL_RESET_SDIO, 0x0001);
-	msleep(10);
+	usleep_range(10000, 11000);
 
 	if (host->pdata->flags & TMIO_MMC_SDIO_IRQ) {
 		sd_ctrl_write16(host, CTL_SDIO_IRQ_MASK, host->sdio_irq_mask);
@@ -762,9 +719,6 @@ irqreturn_t tmio_mmc_irq(int irq, void *devid)
 	status = sd_ctrl_read16_and_16_as_32(host, CTL_STATUS);
 	ireg = status & TMIO_MASK_IRQ & ~host->sdcard_irq_mask;
 
-	pr_debug_status(status);
-	pr_debug_status(ireg);
-
 	/* Clear the status except the interrupt status */
 	sd_ctrl_write32_as_16_and_16(host, CTL_STATUS, TMIO_MASK_IRQ);
 
@@ -1159,8 +1113,11 @@ static int tmio_mmc_init_ocr(struct tmio_mmc_host *host)
 {
 	struct tmio_mmc_data *pdata = host->pdata;
 	struct mmc_host *mmc = host->mmc;
+	int err;
 
-	mmc_regulator_get_supply(mmc);
+	err = mmc_regulator_get_supply(mmc);
+	if (err)
+		return err;
 
 	/* use ocr_mask if no regulator */
 	if (!mmc->ocr_avail)
@@ -1262,6 +1219,18 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
 	mmc->max_blk_count = pdata->max_blk_count ? :
 		(PAGE_SIZE / mmc->max_blk_size) * mmc->max_segs;
 	mmc->max_req_size = mmc->max_blk_size * mmc->max_blk_count;
+	/*
+	 * Since swiotlb has memory size limitation, this will calculate
+	 * the maximum size locally (because we don't have any APIs for it now)
+	 * and check the current max_req_size. And then, this will update
+	 * the max_req_size if needed as a workaround.
+	 */
+	if (swiotlb_max_segment()) {
+		unsigned int max_size = (1 << IO_TLB_SHIFT) * IO_TLB_SEGSIZE;
+
+		if (mmc->max_req_size > max_size)
+			mmc->max_req_size = max_size;
+	}
 	mmc->max_seg_size = mmc->max_req_size;
 
 	_host->native_hotplug = !(pdata->flags & TMIO_MMC_USE_GPIO_CD ||
@@ -1333,23 +1302,24 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
 	pm_runtime_enable(&pdev->dev);
 
 	ret = mmc_add_host(mmc);
-	if (ret < 0) {
-		tmio_mmc_host_remove(_host);
-		return ret;
-	}
+	if (ret)
+		goto remove_host;
 
 	dev_pm_qos_expose_latency_limit(&pdev->dev, 100);
 
 	if (pdata->flags & TMIO_MMC_USE_GPIO_CD) {
 		ret = mmc_gpio_request_cd(mmc, pdata->cd_gpio, 0);
-		if (ret < 0) {
-			tmio_mmc_host_remove(_host);
-			return ret;
-		}
+		if (ret)
+			goto remove_host;
+
 		mmc_gpiod_request_cd_irq(mmc);
 	}
 
 	return 0;
+
+remove_host:
+	tmio_mmc_host_remove(_host);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(tmio_mmc_host_probe);
 
diff --git a/drivers/mmc/host/usdhi6rol0.c b/drivers/mmc/host/usdhi6rol0.c
index 64da6a88cfb9..cdfeb15b6f05 100644
--- a/drivers/mmc/host/usdhi6rol0.c
+++ b/drivers/mmc/host/usdhi6rol0.c
@@ -1757,7 +1757,7 @@ static int usdhi6_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	ret = mmc_regulator_get_supply(mmc);
-	if (ret == -EPROBE_DEFER)
+	if (ret)
 		goto e_free_mmc;
 
 	ret = mmc_of_parse(mmc);
diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index a838bf5480d8..32c4211506fc 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -932,12 +932,12 @@ out:
 	return result;
 }
 
-static void via_sdc_timeout(unsigned long ulongdata)
+static void via_sdc_timeout(struct timer_list *t)
 {
 	struct via_crdr_mmc_host *sdhost;
 	unsigned long flags;
 
-	sdhost = (struct via_crdr_mmc_host *)ulongdata;
+	sdhost = from_timer(sdhost, t, timer);
 
 	spin_lock_irqsave(&sdhost->lock, flags);
 
@@ -1036,9 +1036,7 @@ static void via_init_mmc_host(struct via_crdr_mmc_host *host)
 	u32 lenreg;
 	u32 status;
 
-	init_timer(&host->timer);
-	host->timer.data = (unsigned long)host;
-	host->timer.function = via_sdc_timeout;
+	timer_setup(&host->timer, via_sdc_timeout, 0);
 
 	spin_lock_init(&host->lock);
 
diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index 8f569d257405..1fe68137a30f 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -741,9 +741,10 @@ static void vub300_deadwork_thread(struct work_struct *work)
 	kref_put(&vub300->kref, vub300_delete);
 }
 
-static void vub300_inactivity_timer_expired(unsigned long data)
+static void vub300_inactivity_timer_expired(struct timer_list *t)
 {				/* softirq */
-	struct vub300_mmc_host *vub300 = (struct vub300_mmc_host *)data;
+	struct vub300_mmc_host *vub300 = from_timer(vub300, t,
+						    inactivity_timer);
 	if (!vub300->interface) {
 		kref_put(&vub300->kref, vub300_delete);
 	} else if (vub300->cmd) {
@@ -1180,9 +1181,10 @@ static void send_command(struct vub300_mmc_host *vub300)
  * timer callback runs in atomic mode
  *       so it cannot call usb_kill_urb()
  */
-static void vub300_sg_timed_out(unsigned long data)
+static void vub300_sg_timed_out(struct timer_list *t)
 {
-	struct vub300_mmc_host *vub300 = (struct vub300_mmc_host *)data;
+	struct vub300_mmc_host *vub300 = from_timer(vub300, t,
+						    sg_transfer_timer);
 	vub300->usb_timed_out = 1;
 	usb_sg_cancel(&vub300->sg_request);
 	usb_unlink_urb(vub300->command_out_urb);
@@ -1244,12 +1246,8 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
 						USB_RECIP_DEVICE, 0x0000, 0x0000,
 						xfer_buffer, xfer_length, HZ);
 			kfree(xfer_buffer);
-			if (retval < 0) {
-				strncpy(vub300->vub_name,
-					"SDIO pseudocode download failed",
-					sizeof(vub300->vub_name));
-				return;
-			}
+			if (retval < 0)
+				goto copy_error_message;
 		} else {
 			dev_err(&vub300->udev->dev,
 				"not enough memory for xfer buffer to send"
@@ -1291,12 +1289,8 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
 						USB_RECIP_DEVICE, 0x0000, 0x0000,
 						xfer_buffer, xfer_length, HZ);
 			kfree(xfer_buffer);
-			if (retval < 0) {
-				strncpy(vub300->vub_name,
-					"SDIO pseudocode download failed",
-					sizeof(vub300->vub_name));
-				return;
-			}
+			if (retval < 0)
+				goto copy_error_message;
 		} else {
 			dev_err(&vub300->udev->dev,
 				"not enough memory for xfer buffer to send"
@@ -1349,6 +1343,12 @@ static void __download_offload_pseudocode(struct vub300_mmc_host *vub300,
 			sizeof(vub300->vub_name));
 		return;
 	}
+
+	return;
+
+copy_error_message:
+	strncpy(vub300->vub_name, "SDIO pseudocode download failed",
+		sizeof(vub300->vub_name));
 }
 
 /*
@@ -2323,13 +2323,10 @@ static int vub300_probe(struct usb_interface *interface,
 	INIT_WORK(&vub300->cmndwork, vub300_cmndwork_thread);
 	INIT_WORK(&vub300->deadwork, vub300_deadwork_thread);
 	kref_init(&vub300->kref);
-	init_timer(&vub300->sg_transfer_timer);
-	vub300->sg_transfer_timer.data = (unsigned long)vub300;
-	vub300->sg_transfer_timer.function = vub300_sg_timed_out;
+	timer_setup(&vub300->sg_transfer_timer, vub300_sg_timed_out, 0);
 	kref_get(&vub300->kref);
-	init_timer(&vub300->inactivity_timer);
-	vub300->inactivity_timer.data = (unsigned long)vub300;
-	vub300->inactivity_timer.function = vub300_inactivity_timer_expired;
+	timer_setup(&vub300->inactivity_timer,
+		    vub300_inactivity_timer_expired, 0);
 	vub300->inactivity_timer.expires = jiffies + HZ;
 	add_timer(&vub300->inactivity_timer);
 	if (vub300->card_present)
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 546aaf8d1507..f4233576153b 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -956,9 +956,9 @@ static const struct mmc_host_ops wbsd_ops = {
  * Helper function to reset detection ignore
  */
 
-static void wbsd_reset_ignore(unsigned long data)
+static void wbsd_reset_ignore(struct timer_list *t)
 {
-	struct wbsd_host *host = (struct wbsd_host *)data;
+	struct wbsd_host *host = from_timer(host, t, ignore_timer);
 
 	BUG_ON(host == NULL);
 
@@ -1224,9 +1224,7 @@ static int wbsd_alloc_mmc(struct device *dev)
 	/*
 	 * Set up timers
 	 */
-	init_timer(&host->ignore_timer);
-	host->ignore_timer.data = (unsigned long)host;
-	host->ignore_timer.function = wbsd_reset_ignore;
+	timer_setup(&host->ignore_timer, wbsd_reset_ignore, 0);
 
 	/*
 	 * Maximum number of segments. Worst case is one sector per segment
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 151d60df303a..d6f8f625e1ff 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the memory technology device drivers.
 #
diff --git a/drivers/mtd/chips/Makefile b/drivers/mtd/chips/Makefile
index 36582412ccda..1f4e84f1cd88 100644
--- a/drivers/mtd/chips/Makefile
+++ b/drivers/mtd/chips/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/drivers/chips/Makefile
 #
diff --git a/drivers/mtd/chips/fwh_lock.h b/drivers/mtd/chips/fwh_lock.h
index 800b0e853e86..53e6b2d5932b 100644
--- a/drivers/mtd/chips/fwh_lock.h
+++ b/drivers/mtd/chips/fwh_lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FWH_LOCK_H
 #define FWH_LOCK_H
 
diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile
index f0f767624cc6..94895eab3066 100644
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/drivers/mtd/devices/Makefile
 #
diff --git a/drivers/mtd/devices/bcm47xxsflash.h b/drivers/mtd/devices/bcm47xxsflash.h
index b2d7b38f75fd..fef0d5e42e2a 100644
--- a/drivers/mtd/devices/bcm47xxsflash.h
+++ b/drivers/mtd/devices/bcm47xxsflash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM47XXSFLASH_H
 #define __BCM47XXSFLASH_H
 
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 5a09a72ab112..b849aaf85c34 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/drivers/maps/Makefile
 #
diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c
index 3e33ab66eb24..77b1d8013295 100644
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -114,12 +114,6 @@ ltq_mtd_probe(struct platform_device *pdev)
 	struct cfi_private *cfi;
 	int err;
 
-	if (of_machine_is_compatible("lantiq,falcon") &&
-			(ltq_boot_select() != BS_FLASH)) {
-		dev_err(&pdev->dev, "invalid bootstrap options\n");
-		return -ENODEV;
-	}
-
 	ltq_mtd = devm_kzalloc(&pdev->dev, sizeof(struct ltq_mtd), GFP_KERNEL);
 	if (!ltq_mtd)
 		return -ENOMEM;
diff --git a/drivers/mtd/maps/physmap_of_gemini.c b/drivers/mtd/maps/physmap_of_gemini.c
index 4ed1a6bb4d3c..830b1b7e702b 100644
--- a/drivers/mtd/maps/physmap_of_gemini.c
+++ b/drivers/mtd/maps/physmap_of_gemini.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Cortina Systems Gemini OF physmap add-on
  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/mtd/maps/physmap_of_gemini.h b/drivers/mtd/maps/physmap_of_gemini.h
index c675025288dd..60e13a689d6a 100644
--- a/drivers/mtd/maps/physmap_of_gemini.h
+++ b/drivers/mtd/maps/physmap_of_gemini.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/of.h>
 #include <linux/mtd/map.h>
 
diff --git a/drivers/mtd/maps/physmap_of_versatile.h b/drivers/mtd/maps/physmap_of_versatile.h
index 5b86f6dc6b3d..0302502c9462 100644
--- a/drivers/mtd/maps/physmap_of_versatile.h
+++ b/drivers/mtd/maps/physmap_of_versatile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/of.h>
 #include <linux/mtd/map.h>
 
diff --git a/drivers/mtd/maps/tsunami_flash.c b/drivers/mtd/maps/tsunami_flash.c
index da2cdb5fd6db..9fc1f727aa76 100644
--- a/drivers/mtd/maps/tsunami_flash.c
+++ b/drivers/mtd/maps/tsunami_flash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * tsunami_flash.c
  *
diff --git a/drivers/mtd/mtdcore.h b/drivers/mtd/mtdcore.h
index 55fdb8e1fd2a..37accfd0400e 100644
--- a/drivers/mtd/mtdcore.h
+++ b/drivers/mtd/mtdcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * These are exported solely for the purpose of mtd_blkdevs.c and mtdchar.c.
  * You should not use them for _anything_ else.
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index 5736b0c90b33..a308e707392d 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -581,6 +581,14 @@ static struct mtd_part *allocate_partition(struct mtd_info *parent,
 		slave->mtd.erasesize = parent->erasesize;
 	}
 
+	/*
+	 * Slave erasesize might differ from the master one if the master
+	 * exposes several regions with different erasesize. Adjust
+	 * wr_alignment accordingly.
+	 */
+	if (!(slave->mtd.flags & MTD_NO_ERASE))
+		wr_alignment = slave->mtd.erasesize;
+
 	tmp = slave->offset;
 	remainder = do_div(tmp, wr_alignment);
 	if ((slave->mtd.flags & MTD_WRITEABLE) && remainder) {
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index ade5fc4c3819..6e2db700d923 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # linux/drivers/nand/Makefile
 #
diff --git a/drivers/mtd/nand/atmel/pmecc.c b/drivers/mtd/nand/atmel/pmecc.c
index 146af8218314..8268636675ef 100644
--- a/drivers/mtd/nand/atmel/pmecc.c
+++ b/drivers/mtd/nand/atmel/pmecc.c
@@ -363,7 +363,7 @@ atmel_pmecc_create_user(struct atmel_pmecc *pmecc,
 	size += (req->ecc.strength + 1) * sizeof(u16);
 	/* Reserve space for mu, dmu and delta. */
 	size = ALIGN(size, sizeof(s32));
-	size += (req->ecc.strength + 1) * sizeof(s32);
+	size += (req->ecc.strength + 1) * sizeof(s32) * 3;
 
 	user = kzalloc(size, GFP_KERNEL);
 	if (!user)
diff --git a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h
index c8834767ab6d..201b9baa52a0 100644
--- a/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h
+++ b/drivers/mtd/nand/bcm47xxnflash/bcm47xxnflash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BCM47XXNFLASH_H
 #define __BCM47XXNFLASH_H
 
diff --git a/drivers/mtd/nand/brcmnand/Makefile b/drivers/mtd/nand/brcmnand/Makefile
index b28ffb59eb43..195b845e48b8 100644
--- a/drivers/mtd/nand/brcmnand/Makefile
+++ b/drivers/mtd/nand/brcmnand/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # link order matters; don't link the more generic brcmstb_nand.o before the
 # more specific iproc_nand.o, for instance
 obj-$(CONFIG_MTD_NAND_BRCMNAND)		+= iproc_nand.o
diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index c3bb358ef01e..5796468db653 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -707,7 +707,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 	}
 	res = clk_prepare_enable(host->clk);
 	if (res)
-		goto err_exit1;
+		goto err_put_clk;
 
 	nand_chip->cmd_ctrl = lpc32xx_nand_cmd_ctrl;
 	nand_chip->dev_ready = lpc32xx_nand_device_ready;
@@ -814,6 +814,7 @@ err_exit3:
 		dma_release_channel(host->dma_chan);
 err_exit2:
 	clk_disable_unprepare(host->clk);
+err_put_clk:
 	clk_put(host->clk);
 err_exit1:
 	lpc32xx_wp_enable(host);
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index bcc8cef1c615..12edaae17d81 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2668,7 +2668,7 @@ static uint8_t *nand_fill_oob(struct mtd_info *mtd, uint8_t *oob, size_t len,
 static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 			     struct mtd_oob_ops *ops)
 {
-	int chipnr, realpage, page, blockmask, column;
+	int chipnr, realpage, page, column;
 	struct nand_chip *chip = mtd_to_nand(mtd);
 	uint32_t writelen = ops->len;
 
@@ -2704,7 +2704,6 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
 
 	realpage = (int)(to >> chip->page_shift);
 	page = realpage & chip->pagemask;
-	blockmask = (1 << (chip->phys_erase_shift - chip->page_shift)) - 1;
 
 	/* Invalidate the page cache, when we write to the cached page */
 	if (to <= ((loff_t)chip->pagebuf << chip->page_shift) &&
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index fec613221958..246b4393118e 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -1356,7 +1356,7 @@ static ssize_t read_file(struct nandsim *ns, struct file *file, void *buf, size_
 	if (err)
 		return err;
 	noreclaim_flag = memalloc_noreclaim_save();
-	tx = kernel_read(file, pos, buf, count);
+	tx = kernel_read(file, buf, count, &pos);
 	memalloc_noreclaim_restore(noreclaim_flag);
 	put_pages(ns);
 	return tx;
@@ -1372,7 +1372,7 @@ static ssize_t write_file(struct nandsim *ns, struct file *file, void *buf, size
 	if (err)
 		return err;
 	noreclaim_flag = memalloc_noreclaim_save();
-	tx = kernel_write(file, buf, count, pos);
+	tx = kernel_write(file, buf, count, &pos);
 	memalloc_noreclaim_restore(noreclaim_flag);
 	put_pages(ns);
 	return tx;
diff --git a/drivers/mtd/onenand/Makefile b/drivers/mtd/onenand/Makefile
index 9d6540e8b3d2..f8b624aca9cc 100644
--- a/drivers/mtd/onenand/Makefile
+++ b/drivers/mtd/onenand/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the OneNAND MTD
 #
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index 680188a88130..420260c25ca0 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/drivers/mtd/onenand/onenand_bbt.c
  *
diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile
index 7d84c5108e17..f4c61d282abd 100644
--- a/drivers/mtd/spi-nor/Makefile
+++ b/drivers/mtd/spi-nor/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MTD_SPI_NOR)	+= spi-nor.o
 obj-$(CONFIG_SPI_ASPEED_SMC)	+= aspeed-smc.o
 obj-$(CONFIG_SPI_ATMEL_QUADSPI)	+= atmel-quadspi.o
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index cf1d4a15e10a..19c000722cbc 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -1784,7 +1784,7 @@ spi_nor_set_pp_settings(struct spi_nor_pp_command *pp,
  * @nor:	pointer to a 'struct spi_nor'
  * @addr:	offset in the SFDP area to start reading data from
  * @len:	number of bytes to read
- * @buf:	buffer where the SFDP data are copied into
+ * @buf:	buffer where the SFDP data are copied into (dma-safe memory)
  *
  * Whatever the actual numbers of bytes for address and dummy cycles are
  * for (Fast) Read commands, the Read SFDP (5Ah) instruction is always
@@ -1829,6 +1829,36 @@ read_err:
 	return ret;
 }
 
+/**
+ * spi_nor_read_sfdp_dma_unsafe() - read Serial Flash Discoverable Parameters.
+ * @nor:	pointer to a 'struct spi_nor'
+ * @addr:	offset in the SFDP area to start reading data from
+ * @len:	number of bytes to read
+ * @buf:	buffer where the SFDP data are copied into
+ *
+ * Wrap spi_nor_read_sfdp() using a kmalloc'ed bounce buffer as @buf is now not
+ * guaranteed to be dma-safe.
+ *
+ * Return: -ENOMEM if kmalloc() fails, the return code of spi_nor_read_sfdp()
+ *          otherwise.
+ */
+static int spi_nor_read_sfdp_dma_unsafe(struct spi_nor *nor, u32 addr,
+					size_t len, void *buf)
+{
+	void *dma_safe_buf;
+	int ret;
+
+	dma_safe_buf = kmalloc(len, GFP_KERNEL);
+	if (!dma_safe_buf)
+		return -ENOMEM;
+
+	ret = spi_nor_read_sfdp(nor, addr, len, dma_safe_buf);
+	memcpy(buf, dma_safe_buf, len);
+	kfree(dma_safe_buf);
+
+	return ret;
+}
+
 struct sfdp_parameter_header {
 	u8		id_lsb;
 	u8		minor;
@@ -2101,7 +2131,7 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor,
 		    bfpt_header->length * sizeof(u32));
 	addr = SFDP_PARAM_HEADER_PTP(bfpt_header);
 	memset(&bfpt, 0, sizeof(bfpt));
-	err = spi_nor_read_sfdp(nor,  addr, len, &bfpt);
+	err = spi_nor_read_sfdp_dma_unsafe(nor,  addr, len, &bfpt);
 	if (err < 0)
 		return err;
 
@@ -2127,6 +2157,15 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor,
 	params->size = bfpt.dwords[BFPT_DWORD(2)];
 	if (params->size & BIT(31)) {
 		params->size &= ~BIT(31);
+
+		/*
+		 * Prevent overflows on params->size. Anyway, a NOR of 2^64
+		 * bits is unlikely to exist so this error probably means
+		 * the BFPT we are reading is corrupted/wrong.
+		 */
+		if (params->size > 63)
+			return -EINVAL;
+
 		params->size = 1ULL << params->size;
 	} else {
 		params->size++;
@@ -2243,7 +2282,7 @@ static int spi_nor_parse_sfdp(struct spi_nor *nor,
 	int i, err;
 
 	/* Get the SFDP header. */
-	err = spi_nor_read_sfdp(nor, 0, sizeof(header), &header);
+	err = spi_nor_read_sfdp_dma_unsafe(nor, 0, sizeof(header), &header);
 	if (err < 0)
 		return err;
 
diff --git a/drivers/mtd/tests/Makefile b/drivers/mtd/tests/Makefile
index 937a829bb701..5de0378f90db 100644
--- a/drivers/mtd/tests/Makefile
+++ b/drivers/mtd/tests/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MTD_TESTS) += mtd_oobtest.o
 obj-$(CONFIG_MTD_TESTS) += mtd_pagetest.o
 obj-$(CONFIG_MTD_TESTS) += mtd_readtest.o
diff --git a/drivers/mtd/tests/mtd_test.c b/drivers/mtd/tests/mtd_test.c
index 34736bbcc07b..3d0b8b5c1a53 100644
--- a/drivers/mtd/tests/mtd_test.c
+++ b/drivers/mtd/tests/mtd_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) "mtd_test: " fmt
 
 #include <linux/module.h>
diff --git a/drivers/mtd/tests/mtd_test.h b/drivers/mtd/tests/mtd_test.h
index 04afd0e7074f..5a6e3bbe0474 100644
--- a/drivers/mtd/tests/mtd_test.h
+++ b/drivers/mtd/tests/mtd_test.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/mtd/mtd.h>
 #include <linux/sched/signal.h>
 
diff --git a/drivers/mtd/ubi/Makefile b/drivers/mtd/ubi/Makefile
index 4e3c3d70d8c3..543673605ca7 100644
--- a/drivers/mtd/ubi/Makefile
+++ b/drivers/mtd/ubi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MTD_UBI) += ubi.o
 
 ubi-y += vtbl.o vmt.o upd.o build.o cdev.o kapi.o eba.o io.o wl.o attach.o
diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c
index c3963f880448..b210fdb31c98 100644
--- a/drivers/mtd/ubi/block.c
+++ b/drivers/mtd/ubi/block.c
@@ -383,7 +383,7 @@ int ubiblock_create(struct ubi_volume_info *vi)
 	/* Initialize the gendisk of this ubiblock device */
 	gd = alloc_disk(1);
 	if (!gd) {
-		pr_err("UBI: block: alloc_disk failed");
+		pr_err("UBI: block: alloc_disk failed\n");
 		ret = -ENODEV;
 		goto out_free_dev;
 	}
@@ -607,7 +607,7 @@ static void __init ubiblock_create_from_param(void)
 		desc = open_volume_desc(p->name, p->ubi_num, p->vol_id);
 		if (IS_ERR(desc)) {
 			pr_err(
-			       "UBI: block: can't open volume on ubi%d_%d, err=%ld",
+			       "UBI: block: can't open volume on ubi%d_%d, err=%ld\n",
 			       p->ubi_num, p->vol_id, PTR_ERR(desc));
 			continue;
 		}
@@ -618,7 +618,7 @@ static void __init ubiblock_create_from_param(void)
 		ret = ubiblock_create(&vi);
 		if (ret) {
 			pr_err(
-			       "UBI: block: can't add '%s' volume on ubi%d_%d, err=%d",
+			       "UBI: block: can't add '%s' volume on ubi%d_%d, err=%d\n",
 			       vi.name, p->ubi_num, p->vol_id, ret);
 			continue;
 		}
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index d854521962ef..842550b5712a 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -825,7 +825,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
 	for (i = 0; i < UBI_MAX_DEVICES; i++) {
 		ubi = ubi_devices[i];
 		if (ubi && mtd->index == ubi->mtd->index) {
-			pr_err("ubi: mtd%d is already attached to ubi%d",
+			pr_err("ubi: mtd%d is already attached to ubi%d\n",
 				mtd->index, i);
 			return -EEXIST;
 		}
@@ -840,7 +840,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
 	 * no sense to attach emulated MTD devices, so we prohibit this.
 	 */
 	if (mtd->type == MTD_UBIVOLUME) {
-		pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI",
+		pr_err("ubi: refuse attaching mtd%d - it is already emulated on top of UBI\n",
 			mtd->index);
 		return -EINVAL;
 	}
@@ -851,7 +851,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
 			if (!ubi_devices[ubi_num])
 				break;
 		if (ubi_num == UBI_MAX_DEVICES) {
-			pr_err("ubi: only %d UBI devices may be created",
+			pr_err("ubi: only %d UBI devices may be created\n",
 				UBI_MAX_DEVICES);
 			return -ENFILE;
 		}
@@ -861,7 +861,7 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num,
 
 		/* Make sure ubi_num is not busy */
 		if (ubi_devices[ubi_num]) {
-			pr_err("ubi: ubi%i already exists", ubi_num);
+			pr_err("ubi: ubi%i already exists\n", ubi_num);
 			return -EEXIST;
 		}
 	}
@@ -1166,7 +1166,7 @@ static int __init ubi_init(void)
 	BUILD_BUG_ON(sizeof(struct ubi_vid_hdr) != 64);
 
 	if (mtd_devs > UBI_MAX_DEVICES) {
-		pr_err("UBI error: too many MTD devices, maximum is %d",
+		pr_err("UBI error: too many MTD devices, maximum is %d\n",
 		       UBI_MAX_DEVICES);
 		return -EINVAL;
 	}
@@ -1178,7 +1178,7 @@ static int __init ubi_init(void)
 
 	err = misc_register(&ubi_ctrl_cdev);
 	if (err) {
-		pr_err("UBI error: cannot register device");
+		pr_err("UBI error: cannot register device\n");
 		goto out;
 	}
 
@@ -1205,7 +1205,7 @@ static int __init ubi_init(void)
 		mtd = open_mtd_device(p->name);
 		if (IS_ERR(mtd)) {
 			err = PTR_ERR(mtd);
-			pr_err("UBI error: cannot open mtd %s, error %d",
+			pr_err("UBI error: cannot open mtd %s, error %d\n",
 			       p->name, err);
 			/* See comment below re-ubi_is_module(). */
 			if (ubi_is_module())
@@ -1218,7 +1218,7 @@ static int __init ubi_init(void)
 					 p->vid_hdr_offs, p->max_beb_per1024);
 		mutex_unlock(&ubi_devices_mutex);
 		if (err < 0) {
-			pr_err("UBI error: cannot attach mtd%d",
+			pr_err("UBI error: cannot attach mtd%d\n",
 			       mtd->index);
 			put_mtd_device(mtd);
 
@@ -1242,7 +1242,7 @@ static int __init ubi_init(void)
 
 	err = ubiblock_init();
 	if (err) {
-		pr_err("UBI error: block: cannot initialize, error %d", err);
+		pr_err("UBI error: block: cannot initialize, error %d\n", err);
 
 		/* See comment above re-ubi_is_module(). */
 		if (ubi_is_module())
@@ -1265,7 +1265,7 @@ out_dev_unreg:
 	misc_deregister(&ubi_ctrl_cdev);
 out:
 	class_unregister(&ubi_class);
-	pr_err("UBI error: cannot initialize UBI, error %d", err);
+	pr_err("UBI error: cannot initialize UBI, error %d\n", err);
 	return err;
 }
 late_initcall(ubi_init);
diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index b44c8d348e78..5a832bc79b1b 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -1667,7 +1667,7 @@ err:
 
 	ret = invalidate_fastmap(ubi);
 	if (ret < 0) {
-		ubi_err(ubi, "Unable to invalidiate current fastmap!");
+		ubi_err(ubi, "Unable to invalidate current fastmap!");
 		ubi_ro_mode(ubi);
 	} else {
 		return_fm_pebs(ubi, old_fm);
diff --git a/drivers/mtd/ubi/ubi-media.h b/drivers/mtd/ubi/ubi-media.h
index 22ed3f627506..bfceae5a890e 100644
--- a/drivers/mtd/ubi/ubi-media.h
+++ b/drivers/mtd/ubi/ubi-media.h
@@ -229,7 +229,7 @@ struct ubi_ec_hdr {
  * copy. UBI also calculates data CRC when the data is moved and stores it at
  * the @data_crc field of the copy (P1). So when UBI needs to pick one physical
  * eraseblock of two (P or P1), the @copy_flag of the newer one (P1) is
- * examined. If it is cleared, the situation* is simple and the newer one is
+ * examined. If it is cleared, the situation is simple and the newer one is
  * picked. If it is set, the data CRC of the copy (P1) is examined. If the CRC
  * checksum is correct, this physical eraseblock is selected (P1). Otherwise
  * the older one (P) is selected.
@@ -389,7 +389,7 @@ struct ubi_vtbl_record {
 #define UBI_FM_POOL_MAGIC	0x67AF4D08
 #define UBI_FM_EBA_MAGIC	0xf0c040a8
 
-/* A fastmap supber block can be located between PEB 0 and
+/* A fastmap super block can be located between PEB 0 and
  * UBI_FM_MAX_START */
 #define UBI_FM_MAX_START	64
 
diff --git a/drivers/mtd/ubi/wl.h b/drivers/mtd/ubi/wl.h
index bd1f07e5ce9a..2aaa3f7f2ba9 100644
--- a/drivers/mtd/ubi/wl.h
+++ b/drivers/mtd/ubi/wl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef UBI_WL_H
 #define UBI_WL_H
 #ifdef CONFIG_MTD_UBI_FASTMAP
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 8dff900085d6..676a75f4182a 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux network device drivers.
 #
diff --git a/drivers/net/appletalk/cops.h b/drivers/net/appletalk/cops.h
index fd2750b269c8..7a0bfb351929 100644
--- a/drivers/net/appletalk/cops.h
+++ b/drivers/net/appletalk/cops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*      cops.h: LocalTalk driver for Linux.
  *
  *      Authors:
diff --git a/drivers/net/appletalk/ipddp.h b/drivers/net/appletalk/ipddp.h
index 531519da99a3..9a8e45a46925 100644
--- a/drivers/net/appletalk/ipddp.h
+++ b/drivers/net/appletalk/ipddp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	ipddp.h: Header for IP-over-DDP driver for Linux.
  */
diff --git a/drivers/net/appletalk/ltpc.h b/drivers/net/appletalk/ltpc.h
index cd30544a3729..58cf945732a4 100644
--- a/drivers/net/appletalk/ltpc.h
+++ b/drivers/net/appletalk/ltpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /***   ltpc.h
  *
  *
diff --git a/drivers/net/arcnet/Makefile b/drivers/net/arcnet/Makefile
index 5ce8ee63e435..53525e8ea130 100644
--- a/drivers/net/arcnet/Makefile
+++ b/drivers/net/arcnet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for linux/drivers/net/arcnet
 #
 
diff --git a/drivers/net/arcnet/com9026.h b/drivers/net/arcnet/com9026.h
index efcaf6707214..6adbc18711e0 100644
--- a/drivers/net/arcnet/com9026.h
+++ b/drivers/net/arcnet/com9026.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __COM9026_H
 #define __COM9026_H
 
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index c02cc817a490..1ed9529e7bd1 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1378,7 +1378,7 @@ int bond_tlb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
 				unsigned int count;
 
 				slaves = rcu_dereference(bond->slave_arr);
-				count = slaves ? ACCESS_ONCE(slaves->count) : 0;
+				count = slaves ? READ_ONCE(slaves->count) : 0;
 				if (likely(count))
 					tx_slave = slaves->arr[hash_index %
 							       count];
diff --git a/drivers/net/bonding/bond_debugfs.c b/drivers/net/bonding/bond_debugfs.c
index e52e25a977fa..3868e1a5126d 100644
--- a/drivers/net/bonding/bond_debugfs.c
+++ b/drivers/net/bonding/bond_debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/device.h>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index fc63992ab0e0..08a4f57cf409 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1167,7 +1167,7 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
 	slave = bond_slave_get_rcu(skb->dev);
 	bond = slave->bond;
 
-	recv_probe = ACCESS_ONCE(bond->recv_probe);
+	recv_probe = READ_ONCE(bond->recv_probe);
 	if (recv_probe) {
 		ret = recv_probe(skb, bond, slave);
 		if (ret == RX_HANDLER_CONSUMED) {
@@ -2042,6 +2042,7 @@ static int bond_miimon_inspect(struct bonding *bond)
 
 	bond_for_each_slave_rcu(bond, slave, iter) {
 		slave->new_link = BOND_LINK_NOCHANGE;
+		slave->link_new_state = slave->link;
 
 		link_state = bond_check_dev_link(bond, slave->dev, 0);
 
@@ -3253,7 +3254,7 @@ u32 bond_xmit_hash(struct bonding *bond, struct sk_buff *skb)
 	hash ^= (hash >> 16);
 	hash ^= (hash >> 8);
 
-	return hash;
+	return hash >> 1;
 }
 
 /*-------------------------- Device entry points ----------------------------*/
@@ -3810,7 +3811,7 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev
 		else
 			bond_xmit_slave_id(bond, skb, 0);
 	} else {
-		int slave_cnt = ACCESS_ONCE(bond->slave_cnt);
+		int slave_cnt = READ_ONCE(bond->slave_cnt);
 
 		if (likely(slave_cnt)) {
 			slave_id = bond_rr_gen_slave_id(bond);
@@ -3972,7 +3973,7 @@ static int bond_3ad_xor_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int count;
 
 	slaves = rcu_dereference(bond->slave_arr);
-	count = slaves ? ACCESS_ONCE(slaves->count) : 0;
+	count = slaves ? READ_ONCE(slaves->count) : 0;
 	if (likely(count)) {
 		slave = slaves->arr[bond_xmit_hash(bond, skb) % count];
 		bond_dev_queue_xmit(bond, skb, slave->dev);
@@ -4289,7 +4290,7 @@ static int bond_check_params(struct bond_params *params)
 	int bond_mode	= BOND_MODE_ROUNDROBIN;
 	int xmit_hashtype = BOND_XMIT_POLICY_LAYER2;
 	int lacp_fast = 0;
-	int tlb_dynamic_lb = 0;
+	int tlb_dynamic_lb;
 
 	/* Convert string parameters. */
 	if (mode) {
@@ -4601,16 +4602,13 @@ static int bond_check_params(struct bond_params *params)
 	}
 	ad_user_port_key = valptr->value;
 
-	if ((bond_mode == BOND_MODE_TLB) || (bond_mode == BOND_MODE_ALB)) {
-		bond_opt_initstr(&newval, "default");
-		valptr = bond_opt_parse(bond_opt_get(BOND_OPT_TLB_DYNAMIC_LB),
-					&newval);
-		if (!valptr) {
-			pr_err("Error: No tlb_dynamic_lb default value");
-			return -EINVAL;
-		}
-		tlb_dynamic_lb = valptr->value;
+	bond_opt_initstr(&newval, "default");
+	valptr = bond_opt_parse(bond_opt_get(BOND_OPT_TLB_DYNAMIC_LB), &newval);
+	if (!valptr) {
+		pr_err("Error: No tlb_dynamic_lb default value");
+		return -EINVAL;
 	}
+	tlb_dynamic_lb = valptr->value;
 
 	if (lp_interval == 0) {
 		pr_warn("Warning: ip_interval must be between 1 and %d, so it was reset to %d\n",
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index a12d603d41c6..5931aa2fe997 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -754,6 +754,9 @@ static int bond_option_mode_set(struct bonding *bond,
 			   bond->params.miimon);
 	}
 
+	if (newval->value == BOND_MODE_ALB)
+		bond->params.tlb_dynamic_lb = 1;
+
 	/* don't cache arp_validate between modes */
 	bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
 	bond->params.mode = newval->value;
diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index d8d4ada034b7..f7799321dffb 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/proc_fs.h>
 #include <linux/export.h>
 #include <net/net_namespace.h>
diff --git a/drivers/net/caif/Makefile b/drivers/net/caif/Makefile
index 9bbd45391f6c..54ae1165d60a 100644
--- a/drivers/net/caif/Makefile
+++ b/drivers/net/caif/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_CAIF_DEBUG) := -DDEBUG
 
 # Serial interface
diff --git a/drivers/net/can/Makefile b/drivers/net/can/Makefile
index 4aabbee133b8..02b8ed794564 100644
--- a/drivers/net/can/Makefile
+++ b/drivers/net/can/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 #  Makefile for the Linux Controller Area Network drivers.
 #
diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c
index cf7c18947189..d065c0e2d18e 100644
--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -178,7 +178,6 @@ static int c_can_pci_probe(struct pci_dev *pdev,
 		break;
 	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
-		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		break;
 	default:
 		ret = -EINVAL;
diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 46a746ee80bb..b5145a7f874c 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -320,7 +320,6 @@ static int c_can_plat_probe(struct platform_device *pdev)
 		break;
 	case BOSCH_D_CAN:
 		priv->regs = reg_map_d_can;
-		priv->can.ctrlmode_supported |= CAN_CTRLMODE_3_SAMPLES;
 		priv->read_reg = c_can_plat_read_reg_aligned_to_16bit;
 		priv->write_reg = c_can_plat_write_reg_aligned_to_16bit;
 		priv->read_reg32 = d_can_plat_read_reg32;
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 13f0f219d8aa..a13a4896a8bd 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -182,22 +182,23 @@
 /* FLEXCAN hardware feature flags
  *
  * Below is some version info we got:
- *    SOC   Version   IP-Version  Glitch- [TR]WRN_INT Memory err RTR re-
- *                                Filter? connected?  detection  ception in MB
- *   MX25  FlexCAN2  03.00.00.00     no        no         no        no
- *   MX28  FlexCAN2  03.00.04.00    yes       yes         no        no
- *   MX35  FlexCAN2  03.00.00.00     no        no         no        no
- *   MX53  FlexCAN2  03.00.00.00    yes        no         no        no
- *   MX6s  FlexCAN3  10.00.12.00    yes       yes         no       yes
- *   VF610 FlexCAN3  ?               no       yes        yes       yes?
+ *    SOC   Version   IP-Version  Glitch- [TR]WRN_INT IRQ Err Memory err RTR re-
+ *                                Filter? connected?  Passive detection  ception in MB
+ *   MX25  FlexCAN2  03.00.00.00     no        no         ?       no        no
+ *   MX28  FlexCAN2  03.00.04.00    yes       yes        no       no        no
+ *   MX35  FlexCAN2  03.00.00.00     no        no         ?       no        no
+ *   MX53  FlexCAN2  03.00.00.00    yes        no        no       no        no
+ *   MX6s  FlexCAN3  10.00.12.00    yes       yes        no       no       yes
+ *   VF610 FlexCAN3  ?               no       yes         ?      yes       yes?
  *
  * Some SOCs do not have the RX_WARN & TX_WARN interrupt line connected.
  */
-#define FLEXCAN_QUIRK_BROKEN_ERR_STATE	BIT(1) /* [TR]WRN_INT not connected */
+#define FLEXCAN_QUIRK_BROKEN_WERR_STATE	BIT(1) /* [TR]WRN_INT not connected */
 #define FLEXCAN_QUIRK_DISABLE_RXFG	BIT(2) /* Disable RX FIFO Global mask */
 #define FLEXCAN_QUIRK_ENABLE_EACEN_RRS	BIT(3) /* Enable EACEN and RRS bit in ctrl2 */
 #define FLEXCAN_QUIRK_DISABLE_MECR	BIT(4) /* Disable Memory error detection */
 #define FLEXCAN_QUIRK_USE_OFF_TIMESTAMP	BIT(5) /* Use timestamp based offloading */
+#define FLEXCAN_QUIRK_BROKEN_PERR_STATE	BIT(6) /* No interrupt for error passive */
 
 /* Structure of the message buffer */
 struct flexcan_mb {
@@ -281,14 +282,17 @@ struct flexcan_priv {
 };
 
 static const struct flexcan_devtype_data fsl_p1010_devtype_data = {
-	.quirks = FLEXCAN_QUIRK_BROKEN_ERR_STATE,
+	.quirks = FLEXCAN_QUIRK_BROKEN_WERR_STATE |
+		FLEXCAN_QUIRK_BROKEN_PERR_STATE,
 };
 
-static const struct flexcan_devtype_data fsl_imx28_devtype_data;
+static const struct flexcan_devtype_data fsl_imx28_devtype_data = {
+	.quirks = FLEXCAN_QUIRK_BROKEN_PERR_STATE,
+};
 
 static const struct flexcan_devtype_data fsl_imx6q_devtype_data = {
 	.quirks = FLEXCAN_QUIRK_DISABLE_RXFG | FLEXCAN_QUIRK_ENABLE_EACEN_RRS |
-		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP,
+		FLEXCAN_QUIRK_USE_OFF_TIMESTAMP | FLEXCAN_QUIRK_BROKEN_PERR_STATE,
 };
 
 static const struct flexcan_devtype_data fsl_vf610_devtype_data = {
@@ -335,6 +339,22 @@ static inline void flexcan_write(u32 val, void __iomem *addr)
 }
 #endif
 
+static inline void flexcan_error_irq_enable(const struct flexcan_priv *priv)
+{
+	struct flexcan_regs __iomem *regs = priv->regs;
+	u32 reg_ctrl = (priv->reg_ctrl_default | FLEXCAN_CTRL_ERR_MSK);
+
+	flexcan_write(reg_ctrl, &regs->ctrl);
+}
+
+static inline void flexcan_error_irq_disable(const struct flexcan_priv *priv)
+{
+	struct flexcan_regs __iomem *regs = priv->regs;
+	u32 reg_ctrl = (priv->reg_ctrl_default & ~FLEXCAN_CTRL_ERR_MSK);
+
+	flexcan_write(reg_ctrl, &regs->ctrl);
+}
+
 static inline int flexcan_transceiver_enable(const struct flexcan_priv *priv)
 {
 	if (!priv->reg_xceiver)
@@ -713,6 +733,7 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 	struct flexcan_regs __iomem *regs = priv->regs;
 	irqreturn_t handled = IRQ_NONE;
 	u32 reg_iflag1, reg_esr;
+	enum can_state last_state = priv->can.state;
 
 	reg_iflag1 = flexcan_read(&regs->iflag1);
 
@@ -765,8 +786,10 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 		flexcan_write(reg_esr & FLEXCAN_ESR_ALL_INT, &regs->esr);
 	}
 
-	/* state change interrupt */
-	if (reg_esr & FLEXCAN_ESR_ERR_STATE)
+	/* state change interrupt or broken error state quirk fix is enabled */
+	if ((reg_esr & FLEXCAN_ESR_ERR_STATE) ||
+	    (priv->devtype_data->quirks & (FLEXCAN_QUIRK_BROKEN_WERR_STATE |
+	                                   FLEXCAN_QUIRK_BROKEN_PERR_STATE)))
 		flexcan_irq_state(dev, reg_esr);
 
 	/* bus error IRQ - handle if bus error reporting is activated */
@@ -774,6 +797,44 @@ static irqreturn_t flexcan_irq(int irq, void *dev_id)
 	    (priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING))
 		flexcan_irq_bus_err(dev, reg_esr);
 
+	/* availability of error interrupt among state transitions in case
+	 * bus error reporting is de-activated and
+	 * FLEXCAN_QUIRK_BROKEN_PERR_STATE is enabled:
+	 *  +--------------------------------------------------------------+
+	 *  | +----------------------------------------------+ [stopped /  |
+	 *  | |                                              |  sleeping] -+
+	 *  +-+-> active <-> warning <-> passive -> bus off -+
+	 *        ___________^^^^^^^^^^^^_______________________________
+	 *        disabled(1)  enabled             disabled
+	 *
+	 * (1): enabled if FLEXCAN_QUIRK_BROKEN_WERR_STATE is enabled
+	 */
+	if ((last_state != priv->can.state) &&
+	    (priv->devtype_data->quirks & FLEXCAN_QUIRK_BROKEN_PERR_STATE) &&
+	    !(priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)) {
+		switch (priv->can.state) {
+		case CAN_STATE_ERROR_ACTIVE:
+			if (priv->devtype_data->quirks &
+			    FLEXCAN_QUIRK_BROKEN_WERR_STATE)
+				flexcan_error_irq_enable(priv);
+			else
+				flexcan_error_irq_disable(priv);
+			break;
+
+		case CAN_STATE_ERROR_WARNING:
+			flexcan_error_irq_enable(priv);
+			break;
+
+		case CAN_STATE_ERROR_PASSIVE:
+		case CAN_STATE_BUS_OFF:
+			flexcan_error_irq_disable(priv);
+			break;
+
+		default:
+			break;
+		}
+	}
+
 	return handled;
 }
 
@@ -887,7 +948,7 @@ static int flexcan_chip_start(struct net_device *dev)
 	 * on most Flexcan cores, too. Otherwise we don't get
 	 * any error warning or passive interrupts.
 	 */
-	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_BROKEN_ERR_STATE ||
+	if (priv->devtype_data->quirks & FLEXCAN_QUIRK_BROKEN_WERR_STATE ||
 	    priv->can.ctrlmode & CAN_CTRLMODE_BERR_REPORTING)
 		reg_ctrl |= FLEXCAN_CTRL_ERR_MSK;
 	else
diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c
index 4d1fe8d95042..2772d05ff11c 100644
--- a/drivers/net/can/ifi_canfd/ifi_canfd.c
+++ b/drivers/net/can/ifi_canfd/ifi_canfd.c
@@ -670,9 +670,9 @@ static void ifi_canfd_set_bittiming(struct net_device *ndev)
 	       priv->base + IFI_CANFD_FTIME);
 
 	/* Configure transmitter delay */
-	tdc = (dbt->brp * (dbt->phase_seg1 + 1)) & IFI_CANFD_TDELAY_MASK;
-	writel(IFI_CANFD_TDELAY_EN | IFI_CANFD_TDELAY_ABS | tdc,
-	       priv->base + IFI_CANFD_TDELAY);
+	tdc = dbt->brp * (dbt->prop_seg + dbt->phase_seg1);
+	tdc &= IFI_CANFD_TDELAY_MASK;
+	writel(IFI_CANFD_TDELAY_EN | tdc, priv->base + IFI_CANFD_TDELAY);
 }
 
 static void ifi_canfd_set_filter(struct net_device *ndev, const u32 id,
diff --git a/drivers/net/can/peak_canfd/peak_pciefd_main.c b/drivers/net/can/peak_canfd/peak_pciefd_main.c
index 51c2d182a33a..b4efd711f824 100644
--- a/drivers/net/can/peak_canfd/peak_pciefd_main.c
+++ b/drivers/net/can/peak_canfd/peak_pciefd_main.c
@@ -29,14 +29,19 @@
 #include "peak_canfd_user.h"
 
 MODULE_AUTHOR("Stephane Grosjean <s.grosjean@peak-system.com>");
-MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCIe FD family cards");
-MODULE_SUPPORTED_DEVICE("PEAK PCAN PCIe FD CAN cards");
+MODULE_DESCRIPTION("Socket-CAN driver for PEAK PCAN PCIe/M.2 FD family cards");
+MODULE_SUPPORTED_DEVICE("PEAK PCAN PCIe/M.2 FD CAN cards");
 MODULE_LICENSE("GPL v2");
 
 #define PCIEFD_DRV_NAME		"peak_pciefd"
 
 #define PEAK_PCI_VENDOR_ID	0x001c	/* The PCI device and vendor IDs */
 #define PEAK_PCIEFD_ID		0x0013	/* for PCIe slot cards */
+#define PCAN_CPCIEFD_ID		0x0014	/* for Compact-PCI Serial slot cards */
+#define PCAN_PCIE104FD_ID	0x0017	/* for PCIe-104 Express slot cards */
+#define PCAN_MINIPCIEFD_ID      0x0018	/* for mini-PCIe slot cards */
+#define PCAN_PCIEFD_OEM_ID      0x0019	/* for PCIe slot OEM cards */
+#define PCAN_M2_ID		0x001a	/* for M2 slot cards */
 
 /* PEAK PCIe board access description */
 #define PCIEFD_BAR0_SIZE		(64 * 1024)
@@ -203,6 +208,11 @@ struct pciefd_board {
 /* supported device ids. */
 static const struct pci_device_id peak_pciefd_tbl[] = {
 	{PEAK_PCI_VENDOR_ID, PEAK_PCIEFD_ID, PCI_ANY_ID, PCI_ANY_ID,},
+	{PEAK_PCI_VENDOR_ID, PCAN_CPCIEFD_ID, PCI_ANY_ID, PCI_ANY_ID,},
+	{PEAK_PCI_VENDOR_ID, PCAN_PCIE104FD_ID, PCI_ANY_ID, PCI_ANY_ID,},
+	{PEAK_PCI_VENDOR_ID, PCAN_MINIPCIEFD_ID, PCI_ANY_ID, PCI_ANY_ID,},
+	{PEAK_PCI_VENDOR_ID, PCAN_PCIEFD_OEM_ID, PCI_ANY_ID, PCI_ANY_ID,},
+	{PEAK_PCI_VENDOR_ID, PCAN_M2_ID, PCI_ANY_ID, PCI_ANY_ID,},
 	{0,}
 };
 
diff --git a/drivers/net/can/sja1000/Makefile b/drivers/net/can/sja1000/Makefile
index be11ddd11b87..9253aaf9e739 100644
--- a/drivers/net/can/sja1000/Makefile
+++ b/drivers/net/can/sja1000/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 #  Makefile for the SJA1000 CAN controller drivers.
 #
diff --git a/drivers/net/can/softing/softing.h b/drivers/net/can/softing/softing.h
index 35f062282dbd..2893007ea05e 100644
--- a/drivers/net/can/softing/softing.h
+++ b/drivers/net/can/softing/softing.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * softing common interfaces
  *
diff --git a/drivers/net/can/softing/softing_platform.h b/drivers/net/can/softing/softing_platform.h
index ebbf69815623..68a161547644 100644
--- a/drivers/net/can/softing/softing_platform.h
+++ b/drivers/net/can/softing/softing_platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <linux/platform_device.h>
 
diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c
index 68ef0a4cd821..1ac2090a1721 100644
--- a/drivers/net/can/sun4i_can.c
+++ b/drivers/net/can/sun4i_can.c
@@ -342,7 +342,7 @@ static int sun4i_can_start(struct net_device *dev)
 
 	/* enter the selected mode */
 	mod_reg_val = readl(priv->base + SUN4I_REG_MSEL_ADDR);
-	if (priv->can.ctrlmode & CAN_CTRLMODE_PRESUME_ACK)
+	if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK)
 		mod_reg_val |= SUN4I_MSEL_LOOPBACK_MODE;
 	else if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY)
 		mod_reg_val |= SUN4I_MSEL_LISTEN_ONLY_MODE;
@@ -539,6 +539,13 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status)
 		}
 		stats->rx_over_errors++;
 		stats->rx_errors++;
+
+		/* reset the CAN IP by entering reset mode
+		 * ignoring timeout error
+		 */
+		set_reset_mode(dev);
+		set_normal_mode(dev);
+
 		/* clear bit */
 		sun4i_can_write_cmdreg(priv, SUN4I_CMD_CLEAR_OR_FLAG);
 	}
@@ -653,8 +660,9 @@ static irqreturn_t sun4i_can_interrupt(int irq, void *dev_id)
 			netif_wake_queue(dev);
 			can_led_event(dev, CAN_LED_EVENT_TX);
 		}
-		if (isrc & SUN4I_INT_RBUF_VLD) {
-			/* receive interrupt */
+		if ((isrc & SUN4I_INT_RBUF_VLD) &&
+		    !(isrc & SUN4I_INT_DATA_OR)) {
+			/* receive interrupt - don't read if overrun occurred */
 			while (status & SUN4I_STA_RBUF_RDY) {
 				/* RX buffer is not empty */
 				sun4i_can_rx(dev);
@@ -811,7 +819,6 @@ static int sun4ican_probe(struct platform_device *pdev)
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_BERR_REPORTING |
 				       CAN_CTRLMODE_LISTENONLY |
 				       CAN_CTRLMODE_LOOPBACK |
-				       CAN_CTRLMODE_PRESUME_ACK |
 				       CAN_CTRLMODE_3_SAMPLES;
 	priv->base = addr;
 	priv->clk = clk;
diff --git a/drivers/net/can/usb/Makefile b/drivers/net/can/usb/Makefile
index 164453fd55d0..49ac7b99ba32 100644
--- a/drivers/net/can/usb/Makefile
+++ b/drivers/net/can/usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 #  Makefile for the Linux Controller Area Network USB drivers.
 #
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index be928ce62d32..9fdb0f0bfa06 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -333,7 +333,7 @@ static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv *priv,
 		}
 
 		cf->can_id = id & ESD_IDMASK;
-		cf->can_dlc = get_can_dlc(msg->msg.rx.dlc);
+		cf->can_dlc = get_can_dlc(msg->msg.rx.dlc & ~ESD_RTR);
 
 		if (id & ESD_EXTID)
 			cf->can_id |= CAN_EFF_FLAG;
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index afcc1312dbaf..68ac3e88a8ce 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -375,6 +375,8 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
 
 		gs_free_tx_context(txc);
 
+		atomic_dec(&dev->active_tx_urbs);
+
 		netif_wake_queue(netdev);
 	}
 
@@ -463,14 +465,6 @@ static void gs_usb_xmit_callback(struct urb *urb)
 			  urb->transfer_buffer_length,
 			  urb->transfer_buffer,
 			  urb->transfer_dma);
-
-	atomic_dec(&dev->active_tx_urbs);
-
-	if (!netif_device_present(netdev))
-		return;
-
-	if (netif_queue_stopped(netdev))
-		netif_wake_queue(netdev);
 }
 
 static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb,
diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 18cc529fb807..9b18d96ef526 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -137,6 +137,7 @@ static inline bool kvaser_is_usbcan(const struct usb_device_id *id)
 #define CMD_RESET_ERROR_COUNTER		49
 #define CMD_TX_ACKNOWLEDGE		50
 #define CMD_CAN_ERROR_EVENT		51
+#define CMD_FLUSH_QUEUE_REPLY		68
 
 #define CMD_LEAF_USB_THROTTLE		77
 #define CMD_LEAF_LOG_MESSAGE		106
@@ -1301,6 +1302,11 @@ static void kvaser_usb_handle_message(const struct kvaser_usb *dev,
 			goto warn;
 		break;
 
+	case CMD_FLUSH_QUEUE_REPLY:
+		if (dev->family != KVASER_LEAF)
+			goto warn;
+		break;
+
 	default:
 warn:		dev_warn(dev->udev->dev.parent,
 			 "Unhandled message (%d)\n", msg->id);
@@ -1609,7 +1615,8 @@ static int kvaser_usb_close(struct net_device *netdev)
 	if (err)
 		netdev_warn(netdev, "Cannot flush queue, error %d\n", err);
 
-	if (kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel))
+	err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, priv->channel);
+	if (err)
 		netdev_warn(netdev, "Cannot reset card, error %d\n", err);
 
 	err = kvaser_usb_stop_chip(priv);
diff --git a/drivers/net/cris/eth_v10.c b/drivers/net/cris/eth_v10.c
index 017f48cdcab9..b6e2bfd7d2d6 100644
--- a/drivers/net/cris/eth_v10.c
+++ b/drivers/net/cris/eth_v10.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * e100net.c: A network driver for the ETRAX 100LX network controller.
  *
@@ -165,8 +166,8 @@ static unsigned int network_rec_config_shadow = 0;
 static unsigned int network_tr_ctrl_shadow = 0;
 
 /* Network speed indication. */
-static DEFINE_TIMER(speed_timer, NULL, 0, 0);
-static DEFINE_TIMER(clear_led_timer, NULL, 0, 0);
+static DEFINE_TIMER(speed_timer, NULL);
+static DEFINE_TIMER(clear_led_timer, NULL);
 static int current_speed; /* Speed read from transceiver */
 static int current_speed_selection; /* Speed selected by user */
 static unsigned long led_next_time;
@@ -174,7 +175,7 @@ static int led_active;
 static int rx_queue_len;
 
 /* Duplex */
-static DEFINE_TIMER(duplex_timer, NULL, 0, 0);
+static DEFINE_TIMER(duplex_timer, NULL);
 static int full_duplex;
 static enum duplex current_duplex;
 
diff --git a/drivers/net/dsa/Makefile b/drivers/net/dsa/Makefile
index 4a5b5bd297ee..d040aeb45172 100644
--- a/drivers/net/dsa/Makefile
+++ b/drivers/net/dsa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NET_DSA_BCM_SF2)	+= bcm-sf2.o
 bcm-sf2-objs			:= bcm_sf2.o bcm_sf2_cfp.o
 obj-$(CONFIG_NET_DSA_LOOP)	+= dsa_loop.o dsa_loop_bdinfo.o
diff --git a/drivers/net/dsa/b53/Makefile b/drivers/net/dsa/b53/Makefile
index 7e6f9a8bfd75..4256fb42a4dd 100644
--- a/drivers/net/dsa/b53/Makefile
+++ b/drivers/net/dsa/b53/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_B53)		+= b53_common.o
 
 obj-$(CONFIG_B53_SPI_DRIVER)	+= b53_spi.o
diff --git a/drivers/net/dsa/dsa_loop.h b/drivers/net/dsa/dsa_loop.h
index dc396877fc95..93e5c15d0efd 100644
--- a/drivers/net/dsa/dsa_loop.h
+++ b/drivers/net/dsa/dsa_loop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DSA_LOOP_H
 #define __DSA_LOOP_H
 
diff --git a/drivers/net/dsa/lan9303.h b/drivers/net/dsa/lan9303.h
index 4d8be555ff4d..7df2ac77fc8f 100644
--- a/drivers/net/dsa/lan9303.h
+++ b/drivers/net/dsa/lan9303.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/regmap.h>
 #include <linux/device.h>
 #include <net/dsa.h>
diff --git a/drivers/net/dsa/mv88e6060.c b/drivers/net/dsa/mv88e6060.c
index dce7fa57eb55..f123ed57630d 100644
--- a/drivers/net/dsa/mv88e6060.c
+++ b/drivers/net/dsa/mv88e6060.c
@@ -214,8 +214,14 @@ static int mv88e6060_setup(struct dsa_switch *ds)
 
 static int mv88e6060_set_addr(struct dsa_switch *ds, u8 *addr)
 {
-	/* Use the same MAC Address as FD Pause frames for all ports */
-	REG_WRITE(REG_GLOBAL, GLOBAL_MAC_01, (addr[0] << 9) | addr[1]);
+	u16 val = addr[0] << 8 | addr[1];
+
+	/* The multicast bit is always transmitted as a zero, so the switch uses
+	 * bit 8 for "DiffAddr", where 0 means all ports transmit the same SA.
+	 */
+	val &= 0xfeff;
+
+	REG_WRITE(REG_GLOBAL, GLOBAL_MAC_01, val);
 	REG_WRITE(REG_GLOBAL, GLOBAL_MAC_23, (addr[2] << 8) | addr[3]);
 	REG_WRITE(REG_GLOBAL, GLOBAL_MAC_45, (addr[4] << 8) | addr[5]);
 
diff --git a/drivers/net/dsa/mv88e6xxx/Makefile b/drivers/net/dsa/mv88e6xxx/Makefile
index 5cd5551461e3..58a4a0014e59 100644
--- a/drivers/net/dsa/mv88e6xxx/Makefile
+++ b/drivers/net/dsa/mv88e6xxx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NET_DSA_MV88E6XXX) += mv88e6xxx.o
 mv88e6xxx-objs := chip.o
 mv88e6xxx-objs += global1.o
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index c6678aa9b4ef..d74c7335c512 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -1100,6 +1100,10 @@ static int mv88e6xxx_port_check_hw_vlan(struct dsa_switch *ds, int port,
 	};
 	int i, err;
 
+	/* DSA and CPU ports have to be members of multiple vlans */
+	if (dsa_is_dsa_port(ds, port) || dsa_is_cpu_port(ds, port))
+		return 0;
+
 	if (!vid_begin)
 		return -EOPNOTSUPP;
 
@@ -3947,7 +3951,9 @@ static void mv88e6xxx_remove(struct mdio_device *mdiodev)
 	if (chip->irq > 0) {
 		if (chip->info->g2_irqs > 0)
 			mv88e6xxx_g2_irq_free(chip);
+		mutex_lock(&chip->reg_lock);
 		mv88e6xxx_g1_irq_free(chip);
+		mutex_unlock(&chip->reg_lock);
 	}
 }
 
diff --git a/drivers/net/ethernet/3com/Makefile b/drivers/net/ethernet/3com/Makefile
index 74046afab993..f8b73babc510 100644
--- a/drivers/net/ethernet/3com/Makefile
+++ b/drivers/net/ethernet/3com/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the 3Com Ethernet device drivers
 #
diff --git a/drivers/net/ethernet/8390/Makefile b/drivers/net/ethernet/8390/Makefile
index ff3b31894188..f975c2fc88a3 100644
--- a/drivers/net/ethernet/8390/Makefile
+++ b/drivers/net/ethernet/8390/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the 8390 network device drivers.
 #
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index a0a03d4d939a..39f6273358ed 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux network Ethernet device drivers.
 #
diff --git a/drivers/net/ethernet/aeroflex/greth.h b/drivers/net/ethernet/aeroflex/greth.h
index 9c07140a5d8d..a1e04c9e932e 100644
--- a/drivers/net/ethernet/aeroflex/greth.h
+++ b/drivers/net/ethernet/aeroflex/greth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GRETH_H
 #define GRETH_H
 
diff --git a/drivers/net/ethernet/alacritech/slic.h b/drivers/net/ethernet/alacritech/slic.h
index 08931b4afc96..d0c388cfd52f 100644
--- a/drivers/net/ethernet/alacritech/slic.h
+++ b/drivers/net/ethernet/alacritech/slic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _SLIC_H
 #define _SLIC_H
diff --git a/drivers/net/ethernet/alteon/acenic.h b/drivers/net/ethernet/alteon/acenic.h
index 51c486cfbb8c..c670067b1541 100644
--- a/drivers/net/ethernet/alteon/acenic.h
+++ b/drivers/net/ethernet/alteon/acenic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACENIC_H_
 #define _ACENIC_H_
 #include <linux/interrupt.h>
diff --git a/drivers/net/ethernet/amazon/ena/ena_ethtool.c b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
index b1212debc2e1..967020fb26ee 100644
--- a/drivers/net/ethernet/amazon/ena/ena_ethtool.c
+++ b/drivers/net/ethernet/amazon/ena/ena_ethtool.c
@@ -742,8 +742,8 @@ static void ena_get_channels(struct net_device *netdev,
 {
 	struct ena_adapter *adapter = netdev_priv(netdev);
 
-	channels->max_rx = ENA_MAX_NUM_IO_QUEUES;
-	channels->max_tx = ENA_MAX_NUM_IO_QUEUES;
+	channels->max_rx = adapter->num_queues;
+	channels->max_tx = adapter->num_queues;
 	channels->max_other = 0;
 	channels->max_combined = 0;
 	channels->rx_count = adapter->num_queues;
diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index f7dc22f65d9f..c6bd5e24005d 100644
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -966,7 +966,7 @@ static inline void ena_rx_checksum(struct ena_ring *rx_ring,
 		u64_stats_update_begin(&rx_ring->syncp);
 		rx_ring->rx_stats.bad_csum++;
 		u64_stats_update_end(&rx_ring->syncp);
-		netif_err(rx_ring->adapter, rx_err, rx_ring->netdev,
+		netif_dbg(rx_ring->adapter, rx_err, rx_ring->netdev,
 			  "RX IPv4 header checksum error\n");
 		return;
 	}
@@ -979,7 +979,7 @@ static inline void ena_rx_checksum(struct ena_ring *rx_ring,
 			u64_stats_update_begin(&rx_ring->syncp);
 			rx_ring->rx_stats.bad_csum++;
 			u64_stats_update_end(&rx_ring->syncp);
-			netif_err(rx_ring->adapter, rx_err, rx_ring->netdev,
+			netif_dbg(rx_ring->adapter, rx_err, rx_ring->netdev,
 				  "RX L4 checksum error\n");
 			skb->ip_summed = CHECKSUM_NONE;
 			return;
@@ -3064,7 +3064,8 @@ static void ena_release_bars(struct ena_com_dev *ena_dev, struct pci_dev *pdev)
 	if (ena_dev->mem_bar)
 		devm_iounmap(&pdev->dev, ena_dev->mem_bar);
 
-	devm_iounmap(&pdev->dev, ena_dev->reg_bar);
+	if (ena_dev->reg_bar)
+		devm_iounmap(&pdev->dev, ena_dev->reg_bar);
 
 	release_bars = pci_select_bars(pdev, IORESOURCE_MEM) & ENA_BAR_MASK;
 	pci_release_selected_regions(pdev, release_bars);
diff --git a/drivers/net/ethernet/amd/7990.h b/drivers/net/ethernet/amd/7990.h
index e9e0be313804..741cdc392c6b 100644
--- a/drivers/net/ethernet/amd/7990.h
+++ b/drivers/net/ethernet/amd/7990.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 7990.h -- LANCE ethernet IC generic routines.
  * This is an attempt to separate out the bits of various ethernet
diff --git a/drivers/net/ethernet/amd/Makefile b/drivers/net/ethernet/amd/Makefile
index a38a2dce3eb3..45f86822a5f7 100644
--- a/drivers/net/ethernet/amd/Makefile
+++ b/drivers/net/ethernet/amd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the AMD network device drivers.
 #
diff --git a/drivers/net/ethernet/amd/hplance.h b/drivers/net/ethernet/amd/hplance.h
index 04aee9e0376a..bc845a2c60c1 100644
--- a/drivers/net/ethernet/amd/hplance.h
+++ b/drivers/net/ethernet/amd/hplance.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Random defines and structures for the HP Lance driver.
  * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
  * Based on the Sun Lance driver and the NetBSD HP Lance driver
diff --git a/drivers/net/ethernet/amd/xgbe/Makefile b/drivers/net/ethernet/amd/xgbe/Makefile
index 0dea8f5da899..620785ffbd51 100644
--- a/drivers/net/ethernet/amd/xgbe/Makefile
+++ b/drivers/net/ethernet/amd/xgbe/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_AMD_XGBE) += amd-xgbe.o
 
 amd-xgbe-objs := xgbe-main.o xgbe-drv.o xgbe-dev.o \
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h b/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
index 214986436ece..57e796870595 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_cfg.h
@@ -22,8 +22,12 @@
 
 #define AQ_CFG_FORCE_LEGACY_INT 0U
 
-#define AQ_CFG_IS_INTERRUPT_MODERATION_DEF   1U
-#define AQ_CFG_INTERRUPT_MODERATION_RATE_DEF 0xFFFFU
+#define AQ_CFG_INTERRUPT_MODERATION_OFF		0
+#define AQ_CFG_INTERRUPT_MODERATION_ON		1
+#define AQ_CFG_INTERRUPT_MODERATION_AUTO	0xFFFFU
+
+#define AQ_CFG_INTERRUPT_MODERATION_USEC_MAX (0x1FF * 2)
+
 #define AQ_CFG_IRQ_MASK                      0x1FFU
 
 #define AQ_CFG_VECS_MAX   8U
@@ -51,6 +55,10 @@
 
 #define AQ_CFG_SKB_FRAGS_MAX   32U
 
+/* Number of descriptors available in one ring to resume this ring queue
+ */
+#define AQ_CFG_RESTART_DESC_THRES   (AQ_CFG_SKB_FRAGS_MAX * 2)
+
 #define AQ_CFG_NAPI_WEIGHT     64U
 
 #define AQ_CFG_MULTICAST_ADDRESS_MAX     32U
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
index a761e91471df..d5e99b468870 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ethtool.c
@@ -56,10 +56,6 @@ aq_ethtool_set_link_ksettings(struct net_device *ndev,
 	return aq_nic_set_link_ksettings(aq_nic, cmd);
 }
 
-/* there "5U" is number of queue[#] stats lines (InPackets+...+InErrors) */
-static const unsigned int aq_ethtool_stat_queue_lines = 5U;
-static const unsigned int aq_ethtool_stat_queue_chars =
-	5U * ETH_GSTRING_LEN;
 static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
 	"InPackets",
 	"InUCast",
@@ -83,56 +79,26 @@ static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
 	"InOctetsDma",
 	"OutOctetsDma",
 	"InDroppedDma",
-	"Queue[0] InPackets",
-	"Queue[0] OutPackets",
-	"Queue[0] InJumboPackets",
-	"Queue[0] InLroPackets",
-	"Queue[0] InErrors",
-	"Queue[1] InPackets",
-	"Queue[1] OutPackets",
-	"Queue[1] InJumboPackets",
-	"Queue[1] InLroPackets",
-	"Queue[1] InErrors",
-	"Queue[2] InPackets",
-	"Queue[2] OutPackets",
-	"Queue[2] InJumboPackets",
-	"Queue[2] InLroPackets",
-	"Queue[2] InErrors",
-	"Queue[3] InPackets",
-	"Queue[3] OutPackets",
-	"Queue[3] InJumboPackets",
-	"Queue[3] InLroPackets",
-	"Queue[3] InErrors",
-	"Queue[4] InPackets",
-	"Queue[4] OutPackets",
-	"Queue[4] InJumboPackets",
-	"Queue[4] InLroPackets",
-	"Queue[4] InErrors",
-	"Queue[5] InPackets",
-	"Queue[5] OutPackets",
-	"Queue[5] InJumboPackets",
-	"Queue[5] InLroPackets",
-	"Queue[5] InErrors",
-	"Queue[6] InPackets",
-	"Queue[6] OutPackets",
-	"Queue[6] InJumboPackets",
-	"Queue[6] InLroPackets",
-	"Queue[6] InErrors",
-	"Queue[7] InPackets",
-	"Queue[7] OutPackets",
-	"Queue[7] InJumboPackets",
-	"Queue[7] InLroPackets",
-	"Queue[7] InErrors",
+};
+
+static const char aq_ethtool_queue_stat_names[][ETH_GSTRING_LEN] = {
+	"Queue[%d] InPackets",
+	"Queue[%d] OutPackets",
+	"Queue[%d] Restarts",
+	"Queue[%d] InJumboPackets",
+	"Queue[%d] InLroPackets",
+	"Queue[%d] InErrors",
 };
 
 static void aq_ethtool_stats(struct net_device *ndev,
 			     struct ethtool_stats *stats, u64 *data)
 {
 	struct aq_nic_s *aq_nic = netdev_priv(ndev);
+	struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
 
-/* ASSERT: Need add lines to aq_ethtool_stat_names if AQ_CFG_VECS_MAX > 8 */
-	BUILD_BUG_ON(AQ_CFG_VECS_MAX > 8);
-	memset(data, 0, ARRAY_SIZE(aq_ethtool_stat_names) * sizeof(u64));
+	memset(data, 0, (ARRAY_SIZE(aq_ethtool_stat_names) +
+				ARRAY_SIZE(aq_ethtool_queue_stat_names) *
+				cfg->vecs) * sizeof(u64));
 	aq_nic_get_stats(aq_nic, data);
 }
 
@@ -154,8 +120,8 @@ static void aq_ethtool_get_drvinfo(struct net_device *ndev,
 
 	strlcpy(drvinfo->bus_info, pdev ? pci_name(pdev) : "",
 		sizeof(drvinfo->bus_info));
-	drvinfo->n_stats = ARRAY_SIZE(aq_ethtool_stat_names) -
-		(AQ_CFG_VECS_MAX - cfg->vecs) * aq_ethtool_stat_queue_lines;
+	drvinfo->n_stats = ARRAY_SIZE(aq_ethtool_stat_names) +
+		cfg->vecs * ARRAY_SIZE(aq_ethtool_queue_stat_names);
 	drvinfo->testinfo_len = 0;
 	drvinfo->regdump_len = regs_count;
 	drvinfo->eedump_len = 0;
@@ -164,14 +130,25 @@ static void aq_ethtool_get_drvinfo(struct net_device *ndev,
 static void aq_ethtool_get_strings(struct net_device *ndev,
 				   u32 stringset, u8 *data)
 {
+	int i, si;
 	struct aq_nic_s *aq_nic = netdev_priv(ndev);
 	struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
-
-	if (stringset == ETH_SS_STATS)
-		memcpy(data, *aq_ethtool_stat_names,
-		       sizeof(aq_ethtool_stat_names) -
-		       (AQ_CFG_VECS_MAX - cfg->vecs) *
-		       aq_ethtool_stat_queue_chars);
+	u8 *p = data;
+
+	if (stringset == ETH_SS_STATS) {
+		memcpy(p, *aq_ethtool_stat_names,
+		       sizeof(aq_ethtool_stat_names));
+		p = p + sizeof(aq_ethtool_stat_names);
+		for (i = 0; i < cfg->vecs; i++) {
+			for (si = 0;
+				si < ARRAY_SIZE(aq_ethtool_queue_stat_names);
+				si++) {
+				snprintf(p, ETH_GSTRING_LEN,
+					 aq_ethtool_queue_stat_names[si], i);
+				p += ETH_GSTRING_LEN;
+			}
+		}
+	}
 }
 
 static int aq_ethtool_get_sset_count(struct net_device *ndev, int stringset)
@@ -182,9 +159,8 @@ static int aq_ethtool_get_sset_count(struct net_device *ndev, int stringset)
 
 	switch (stringset) {
 	case ETH_SS_STATS:
-		ret = ARRAY_SIZE(aq_ethtool_stat_names) -
-			(AQ_CFG_VECS_MAX - cfg->vecs) *
-			aq_ethtool_stat_queue_lines;
+		ret = ARRAY_SIZE(aq_ethtool_stat_names) +
+			cfg->vecs * ARRAY_SIZE(aq_ethtool_queue_stat_names);
 		break;
 	default:
 		ret = -EOPNOTSUPP;
@@ -245,6 +221,69 @@ static int aq_ethtool_get_rxnfc(struct net_device *ndev,
 	return err;
 }
 
+int aq_ethtool_get_coalesce(struct net_device *ndev,
+			    struct ethtool_coalesce *coal)
+{
+	struct aq_nic_s *aq_nic = netdev_priv(ndev);
+	struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+
+	if (cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON ||
+	    cfg->itr == AQ_CFG_INTERRUPT_MODERATION_AUTO) {
+		coal->rx_coalesce_usecs = cfg->rx_itr;
+		coal->tx_coalesce_usecs = cfg->tx_itr;
+		coal->rx_max_coalesced_frames = 0;
+		coal->tx_max_coalesced_frames = 0;
+	} else {
+		coal->rx_coalesce_usecs = 0;
+		coal->tx_coalesce_usecs = 0;
+		coal->rx_max_coalesced_frames = 1;
+		coal->tx_max_coalesced_frames = 1;
+	}
+	return 0;
+}
+
+int aq_ethtool_set_coalesce(struct net_device *ndev,
+			    struct ethtool_coalesce *coal)
+{
+	struct aq_nic_s *aq_nic = netdev_priv(ndev);
+	struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
+
+	/* This is not yet supported
+	 */
+	if (coal->use_adaptive_rx_coalesce || coal->use_adaptive_tx_coalesce)
+		return -EOPNOTSUPP;
+
+	/* Atlantic only supports timing based coalescing
+	 */
+	if (coal->rx_max_coalesced_frames > 1 ||
+	    coal->rx_coalesce_usecs_irq ||
+	    coal->rx_max_coalesced_frames_irq)
+		return -EOPNOTSUPP;
+
+	if (coal->tx_max_coalesced_frames > 1 ||
+	    coal->tx_coalesce_usecs_irq ||
+	    coal->tx_max_coalesced_frames_irq)
+		return -EOPNOTSUPP;
+
+	/* We do not support frame counting. Check this
+	 */
+	if (!(coal->rx_max_coalesced_frames == !coal->rx_coalesce_usecs))
+		return -EOPNOTSUPP;
+	if (!(coal->tx_max_coalesced_frames == !coal->tx_coalesce_usecs))
+		return -EOPNOTSUPP;
+
+	if (coal->rx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX ||
+	    coal->tx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX)
+		return -EINVAL;
+
+	cfg->itr = AQ_CFG_INTERRUPT_MODERATION_ON;
+
+	cfg->rx_itr = coal->rx_coalesce_usecs;
+	cfg->tx_itr = coal->tx_coalesce_usecs;
+
+	return aq_nic_update_interrupt_moderation_settings(aq_nic);
+}
+
 const struct ethtool_ops aq_ethtool_ops = {
 	.get_link            = aq_ethtool_get_link,
 	.get_regs_len        = aq_ethtool_get_regs_len,
@@ -259,4 +298,6 @@ const struct ethtool_ops aq_ethtool_ops = {
 	.get_ethtool_stats   = aq_ethtool_stats,
 	.get_link_ksettings  = aq_ethtool_get_link_ksettings,
 	.set_link_ksettings  = aq_ethtool_set_link_ksettings,
+	.get_coalesce	     = aq_ethtool_get_coalesce,
+	.set_coalesce	     = aq_ethtool_set_coalesce,
 };
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_hw.h b/drivers/net/ethernet/aquantia/atlantic/aq_hw.h
index bf9b3f020e10..0207927dc8a6 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_hw.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_hw.h
@@ -151,8 +151,7 @@ struct aq_hw_ops {
 				     [ETH_ALEN],
 				     u32 count);
 
-	int (*hw_interrupt_moderation_set)(struct aq_hw_s *self,
-					   bool itr_enabled);
+	int (*hw_interrupt_moderation_set)(struct aq_hw_s *self);
 
 	int (*hw_rss_set)(struct aq_hw_s *self,
 			  struct aq_rss_parameters *rss_params);
@@ -163,6 +162,8 @@ struct aq_hw_ops {
 	int (*hw_get_regs)(struct aq_hw_s *self,
 			   struct aq_hw_caps_s *aq_hw_caps, u32 *regs_buff);
 
+	int (*hw_update_stats)(struct aq_hw_s *self);
+
 	int (*hw_get_hw_stats)(struct aq_hw_s *self, u64 *data,
 			       unsigned int *p_count);
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
index 6ac9e2602d6d..483e97691eea 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.c
@@ -16,6 +16,7 @@
 #include "aq_pci_func.h"
 #include "aq_nic_internal.h"
 
+#include <linux/moduleparam.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/timer.h>
@@ -24,6 +25,18 @@
 #include <linux/tcp.h>
 #include <net/ip.h>
 
+static unsigned int aq_itr = AQ_CFG_INTERRUPT_MODERATION_AUTO;
+module_param_named(aq_itr, aq_itr, uint, 0644);
+MODULE_PARM_DESC(aq_itr, "Interrupt throttling mode");
+
+static unsigned int aq_itr_tx;
+module_param_named(aq_itr_tx, aq_itr_tx, uint, 0644);
+MODULE_PARM_DESC(aq_itr_tx, "TX interrupt throttle rate");
+
+static unsigned int aq_itr_rx;
+module_param_named(aq_itr_rx, aq_itr_rx, uint, 0644);
+MODULE_PARM_DESC(aq_itr_rx, "RX interrupt throttle rate");
+
 static void aq_nic_rss_init(struct aq_nic_s *self, unsigned int num_rss_queues)
 {
 	struct aq_nic_cfg_s *cfg = &self->aq_nic_cfg;
@@ -61,9 +74,9 @@ static void aq_nic_cfg_init_defaults(struct aq_nic_s *self)
 
 	cfg->is_polling = AQ_CFG_IS_POLLING_DEF;
 
-	cfg->is_interrupt_moderation = AQ_CFG_IS_INTERRUPT_MODERATION_DEF;
-	cfg->itr = cfg->is_interrupt_moderation ?
-		AQ_CFG_INTERRUPT_MODERATION_RATE_DEF : 0U;
+	cfg->itr = aq_itr;
+	cfg->tx_itr = aq_itr_tx;
+	cfg->rx_itr = aq_itr_rx;
 
 	cfg->is_rss = AQ_CFG_IS_RSS_DEF;
 	cfg->num_rss_queues = AQ_CFG_NUM_RSS_QUEUES_DEF;
@@ -119,6 +132,37 @@ int aq_nic_cfg_start(struct aq_nic_s *self)
 	return 0;
 }
 
+static int aq_nic_update_link_status(struct aq_nic_s *self)
+{
+	int err = self->aq_hw_ops.hw_get_link_status(self->aq_hw);
+
+	if (err)
+		return err;
+
+	if (self->link_status.mbps != self->aq_hw->aq_link_status.mbps) {
+		pr_info("%s: link change old %d new %d\n",
+			AQ_CFG_DRV_NAME, self->link_status.mbps,
+			self->aq_hw->aq_link_status.mbps);
+		aq_nic_update_interrupt_moderation_settings(self);
+	}
+
+	self->link_status = self->aq_hw->aq_link_status;
+	if (!netif_carrier_ok(self->ndev) && self->link_status.mbps) {
+		aq_utils_obj_set(&self->header.flags,
+				 AQ_NIC_FLAG_STARTED);
+		aq_utils_obj_clear(&self->header.flags,
+				   AQ_NIC_LINK_DOWN);
+		netif_carrier_on(self->ndev);
+		netif_tx_wake_all_queues(self->ndev);
+	}
+	if (netif_carrier_ok(self->ndev) && !self->link_status.mbps) {
+		netif_carrier_off(self->ndev);
+		netif_tx_disable(self->ndev);
+		aq_utils_obj_set(&self->header.flags, AQ_NIC_LINK_DOWN);
+	}
+	return 0;
+}
+
 static void aq_nic_service_timer_cb(unsigned long param)
 {
 	struct aq_nic_s *self = (struct aq_nic_s *)param;
@@ -131,25 +175,12 @@ static void aq_nic_service_timer_cb(unsigned long param)
 	if (aq_utils_obj_test(&self->header.flags, AQ_NIC_FLAGS_IS_NOT_READY))
 		goto err_exit;
 
-	err = self->aq_hw_ops.hw_get_link_status(self->aq_hw);
-	if (err < 0)
+	err = aq_nic_update_link_status(self);
+	if (err)
 		goto err_exit;
 
-	self->link_status = self->aq_hw->aq_link_status;
-
-	self->aq_hw_ops.hw_interrupt_moderation_set(self->aq_hw,
-		    self->aq_nic_cfg.is_interrupt_moderation);
-
-	if (self->link_status.mbps) {
-		aq_utils_obj_set(&self->header.flags,
-				 AQ_NIC_FLAG_STARTED);
-		aq_utils_obj_clear(&self->header.flags,
-				   AQ_NIC_LINK_DOWN);
-		netif_carrier_on(self->ndev);
-	} else {
-		netif_carrier_off(self->ndev);
-		aq_utils_obj_set(&self->header.flags, AQ_NIC_LINK_DOWN);
-	}
+	if (self->aq_hw_ops.hw_update_stats)
+		self->aq_hw_ops.hw_update_stats(self->aq_hw);
 
 	memset(&stats_rx, 0U, sizeof(struct aq_ring_stats_rx_s));
 	memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
@@ -214,7 +245,6 @@ struct aq_nic_s *aq_nic_alloc_cold(const struct net_device_ops *ndev_ops,
 	SET_NETDEV_DEV(ndev, dev);
 
 	ndev->if_port = port;
-	ndev->min_mtu = ETH_MIN_MTU;
 	self->ndev = ndev;
 
 	self->aq_pci_func = aq_pci_func;
@@ -241,7 +271,6 @@ err_exit:
 int aq_nic_ndev_register(struct aq_nic_s *self)
 {
 	int err = 0;
-	unsigned int i = 0U;
 
 	if (!self->ndev) {
 		err = -EINVAL;
@@ -263,8 +292,7 @@ int aq_nic_ndev_register(struct aq_nic_s *self)
 
 	netif_carrier_off(self->ndev);
 
-	for (i = AQ_CFG_VECS_MAX; i--;)
-		aq_nic_ndev_queue_stop(self, i);
+	netif_tx_disable(self->ndev);
 
 	err = register_netdev(self->ndev);
 	if (err < 0)
@@ -283,6 +311,7 @@ int aq_nic_ndev_init(struct aq_nic_s *self)
 	self->ndev->features = aq_hw_caps->hw_features;
 	self->ndev->priv_flags = aq_hw_caps->hw_priv_flags;
 	self->ndev->mtu = aq_nic_cfg->mtu - ETH_HLEN;
+	self->ndev->max_mtu = self->aq_hw_caps.mtu - ETH_FCS_LEN - ETH_HLEN;
 
 	return 0;
 }
@@ -318,12 +347,9 @@ struct aq_nic_s *aq_nic_alloc_hot(struct net_device *ndev)
 		err = -EINVAL;
 		goto err_exit;
 	}
-	if (netif_running(ndev)) {
-		unsigned int i;
-
-		for (i = AQ_CFG_VECS_MAX; i--;)
-			netif_stop_subqueue(ndev, i);
-	}
+	if (netif_running(ndev))
+		netif_tx_disable(ndev);
+	netif_carrier_off(self->ndev);
 
 	for (self->aq_vecs = 0; self->aq_vecs < self->aq_nic_cfg.vecs;
 		self->aq_vecs++) {
@@ -383,16 +409,6 @@ err_exit:
 	return err;
 }
 
-void aq_nic_ndev_queue_start(struct aq_nic_s *self, unsigned int idx)
-{
-	netif_start_subqueue(self->ndev, idx);
-}
-
-void aq_nic_ndev_queue_stop(struct aq_nic_s *self, unsigned int idx)
-{
-	netif_stop_subqueue(self->ndev, idx);
-}
-
 int aq_nic_start(struct aq_nic_s *self)
 {
 	struct aq_vec_s *aq_vec = NULL;
@@ -421,9 +437,8 @@ int aq_nic_start(struct aq_nic_s *self)
 	if (err < 0)
 		goto err_exit;
 
-	err = self->aq_hw_ops.hw_interrupt_moderation_set(self->aq_hw,
-			    self->aq_nic_cfg.is_interrupt_moderation);
-	if (err < 0)
+	err = aq_nic_update_interrupt_moderation_settings(self);
+	if (err)
 		goto err_exit;
 	setup_timer(&self->service_timer, &aq_nic_service_timer_cb,
 		    (unsigned long)self);
@@ -451,10 +466,6 @@ int aq_nic_start(struct aq_nic_s *self)
 			goto err_exit;
 	}
 
-	for (i = 0U, aq_vec = self->aq_vec[0];
-		self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
-		aq_nic_ndev_queue_start(self, i);
-
 	err = netif_set_real_num_tx_queues(self->ndev, self->aq_vecs);
 	if (err < 0)
 		goto err_exit;
@@ -463,6 +474,8 @@ int aq_nic_start(struct aq_nic_s *self)
 	if (err < 0)
 		goto err_exit;
 
+	netif_tx_start_all_queues(self->ndev);
+
 err_exit:
 	return err;
 }
@@ -475,6 +488,7 @@ static unsigned int aq_nic_map_skb(struct aq_nic_s *self,
 	unsigned int nr_frags = skb_shinfo(skb)->nr_frags;
 	unsigned int frag_count = 0U;
 	unsigned int dx = ring->sw_tail;
+	struct aq_ring_buff_s *first = NULL;
 	struct aq_ring_buff_s *dx_buff = &ring->buff_ring[dx];
 
 	if (unlikely(skb_is_gso(skb))) {
@@ -485,6 +499,7 @@ static unsigned int aq_nic_map_skb(struct aq_nic_s *self,
 		dx_buff->len_l4 = tcp_hdrlen(skb);
 		dx_buff->mss = skb_shinfo(skb)->gso_size;
 		dx_buff->is_txc = 1U;
+		dx_buff->eop_index = 0xffffU;
 
 		dx_buff->is_ipv6 =
 			(ip_hdr(skb)->version == 6) ? 1U : 0U;
@@ -504,6 +519,7 @@ static unsigned int aq_nic_map_skb(struct aq_nic_s *self,
 	if (unlikely(dma_mapping_error(aq_nic_get_dev(self), dx_buff->pa)))
 		goto exit;
 
+	first = dx_buff;
 	dx_buff->len_pkt = skb->len;
 	dx_buff->is_sop = 1U;
 	dx_buff->is_mapped = 1U;
@@ -532,40 +548,46 @@ static unsigned int aq_nic_map_skb(struct aq_nic_s *self,
 
 	for (; nr_frags--; ++frag_count) {
 		unsigned int frag_len = 0U;
+		unsigned int buff_offset = 0U;
+		unsigned int buff_size = 0U;
 		dma_addr_t frag_pa;
 		skb_frag_t *frag = &skb_shinfo(skb)->frags[frag_count];
 
 		frag_len = skb_frag_size(frag);
-		frag_pa = skb_frag_dma_map(aq_nic_get_dev(self), frag, 0,
-					   frag_len, DMA_TO_DEVICE);
 
-		if (unlikely(dma_mapping_error(aq_nic_get_dev(self), frag_pa)))
-			goto mapping_error;
+		while (frag_len) {
+			if (frag_len > AQ_CFG_TX_FRAME_MAX)
+				buff_size = AQ_CFG_TX_FRAME_MAX;
+			else
+				buff_size = frag_len;
+
+			frag_pa = skb_frag_dma_map(aq_nic_get_dev(self),
+						   frag,
+						   buff_offset,
+						   buff_size,
+						   DMA_TO_DEVICE);
+
+			if (unlikely(dma_mapping_error(aq_nic_get_dev(self),
+						       frag_pa)))
+				goto mapping_error;
 
-		while (frag_len > AQ_CFG_TX_FRAME_MAX) {
 			dx = aq_ring_next_dx(ring, dx);
 			dx_buff = &ring->buff_ring[dx];
 
 			dx_buff->flags = 0U;
-			dx_buff->len = AQ_CFG_TX_FRAME_MAX;
+			dx_buff->len = buff_size;
 			dx_buff->pa = frag_pa;
 			dx_buff->is_mapped = 1U;
+			dx_buff->eop_index = 0xffffU;
+
+			frag_len -= buff_size;
+			buff_offset += buff_size;
 
-			frag_len -= AQ_CFG_TX_FRAME_MAX;
-			frag_pa += AQ_CFG_TX_FRAME_MAX;
 			++ret;
 		}
-
-		dx = aq_ring_next_dx(ring, dx);
-		dx_buff = &ring->buff_ring[dx];
-
-		dx_buff->flags = 0U;
-		dx_buff->len = frag_len;
-		dx_buff->pa = frag_pa;
-		dx_buff->is_mapped = 1U;
-		++ret;
 	}
 
+	first->eop_index = dx;
 	dx_buff->is_eop = 1U;
 	dx_buff->skb = skb;
 	goto exit;
@@ -602,7 +624,6 @@ int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
 	unsigned int vec = skb->queue_mapping % self->aq_nic_cfg.vecs;
 	unsigned int tc = 0U;
 	int err = NETDEV_TX_OK;
-	bool is_nic_in_bad_state;
 
 	frags = skb_shinfo(skb)->nr_frags + 1;
 
@@ -613,13 +634,10 @@ int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
 		goto err_exit;
 	}
 
-	is_nic_in_bad_state = aq_utils_obj_test(&self->header.flags,
-						AQ_NIC_FLAGS_IS_NOT_TX_READY) ||
-						(aq_ring_avail_dx(ring) <
-						AQ_CFG_SKB_FRAGS_MAX);
+	aq_ring_update_queue_state(ring);
 
-	if (is_nic_in_bad_state) {
-		aq_nic_ndev_queue_stop(self, ring->idx);
+	/* Above status update may stop the queue. Check this. */
+	if (__netif_subqueue_stopped(self->ndev, ring->idx)) {
 		err = NETDEV_TX_BUSY;
 		goto err_exit;
 	}
@@ -631,9 +649,6 @@ int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb)
 						      ring,
 						      frags);
 		if (err >= 0) {
-			if (aq_ring_avail_dx(ring) < AQ_CFG_SKB_FRAGS_MAX + 1)
-				aq_nic_ndev_queue_stop(self, ring->idx);
-
 			++ring->stats.tx.packets;
 			ring->stats.tx.bytes += skb->len;
 		}
@@ -645,6 +660,11 @@ err_exit:
 	return err;
 }
 
+int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self)
+{
+	return self->aq_hw_ops.hw_interrupt_moderation_set(self->aq_hw);
+}
+
 int aq_nic_set_packet_filter(struct aq_nic_s *self, unsigned int flags)
 {
 	int err = 0;
@@ -693,16 +713,9 @@ int aq_nic_set_multicast_list(struct aq_nic_s *self, struct net_device *ndev)
 
 int aq_nic_set_mtu(struct aq_nic_s *self, int new_mtu)
 {
-	int err = 0;
-
-	if (new_mtu > self->aq_hw_caps.mtu) {
-		err = -EINVAL;
-		goto err_exit;
-	}
 	self->aq_nic_cfg.mtu = new_mtu;
 
-err_exit:
-	return err;
+	return 0;
 }
 
 int aq_nic_set_mac(struct aq_nic_s *self, struct net_device *ndev)
@@ -905,9 +918,8 @@ int aq_nic_stop(struct aq_nic_s *self)
 	struct aq_vec_s *aq_vec = NULL;
 	unsigned int i = 0U;
 
-	for (i = 0U, aq_vec = self->aq_vec[0];
-		self->aq_vecs > i; ++i, aq_vec = self->aq_vec[i])
-		aq_nic_ndev_queue_stop(self, i);
+	netif_tx_disable(self->ndev);
+	netif_carrier_off(self->ndev);
 
 	del_timer_sync(&self->service_timer);
 
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
index 7fc2a5ecb2b7..4309983acdd6 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_nic.h
@@ -40,6 +40,8 @@ struct aq_nic_cfg_s {
 	u32 vecs;		/* vecs==allocated irqs */
 	u32 irq_type;
 	u32 itr;
+	u16 rx_itr;
+	u16 tx_itr;
 	u32 num_rss_queues;
 	u32 mtu;
 	u32 ucp_0x364;
@@ -49,7 +51,6 @@ struct aq_nic_cfg_s {
 	u16 is_mc_list_enabled;
 	u16 mc_list_count;
 	bool is_autoneg;
-	bool is_interrupt_moderation;
 	bool is_polling;
 	bool is_rss;
 	bool is_lro;
@@ -83,8 +84,6 @@ struct net_device *aq_nic_get_ndev(struct aq_nic_s *self);
 int aq_nic_init(struct aq_nic_s *self);
 int aq_nic_cfg_start(struct aq_nic_s *self);
 int aq_nic_ndev_register(struct aq_nic_s *self);
-void aq_nic_ndev_queue_start(struct aq_nic_s *self, unsigned int idx);
-void aq_nic_ndev_queue_stop(struct aq_nic_s *self, unsigned int idx);
 void aq_nic_ndev_free(struct aq_nic_s *self);
 int aq_nic_start(struct aq_nic_s *self);
 int aq_nic_xmit(struct aq_nic_s *self, struct sk_buff *skb);
@@ -106,5 +105,6 @@ int aq_nic_set_link_ksettings(struct aq_nic_s *self,
 struct aq_nic_cfg_s *aq_nic_get_cfg(struct aq_nic_s *self);
 u32 aq_nic_get_fw_version(struct aq_nic_s *self);
 int aq_nic_change_pm_state(struct aq_nic_s *self, pm_message_t *pm_msg);
+int aq_nic_update_interrupt_moderation_settings(struct aq_nic_s *self);
 
 #endif /* AQ_NIC_H */
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
index 4c6c882c6a1c..cadaa646c89f 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c
@@ -85,6 +85,7 @@ int aq_pci_func_init(struct aq_pci_func_s *self)
 	int err = 0;
 	unsigned int bar = 0U;
 	unsigned int port = 0U;
+	unsigned int numvecs = 0U;
 
 	err = pci_enable_device(self->pdev);
 	if (err < 0)
@@ -142,10 +143,12 @@ int aq_pci_func_init(struct aq_pci_func_s *self)
 		}
 	}
 
-	/*enable interrupts */
+	numvecs = min((u8)AQ_CFG_VECS_DEF, self->aq_hw_caps.msix_irqs);
+	numvecs = min(numvecs, num_online_cpus());
+
+	/* enable interrupts */
 #if !AQ_CFG_FORCE_LEGACY_INT
-	err = pci_alloc_irq_vectors(self->pdev, self->aq_hw_caps.msix_irqs,
-			      self->aq_hw_caps.msix_irqs, PCI_IRQ_MSIX);
+	err = pci_alloc_irq_vectors(self->pdev, numvecs, numvecs, PCI_IRQ_MSIX);
 
 	if (err < 0) {
 		err = pci_alloc_irq_vectors(self->pdev, 1, 1,
@@ -153,7 +156,7 @@ int aq_pci_func_init(struct aq_pci_func_s *self)
 		if (err < 0)
 			goto err_exit;
 	}
-#endif
+#endif /* AQ_CFG_FORCE_LEGACY_INT */
 
 	/* net device init */
 	for (port = 0; port < self->ports; ++port) {
@@ -265,6 +268,9 @@ void aq_pci_func_free(struct aq_pci_func_s *self)
 		aq_nic_ndev_free(self->port[port]);
 	}
 
+	if (self->mmio)
+		iounmap(self->mmio);
+
 	kfree(self);
 
 err_exit:;
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index 4eee1996a825..0654e0c76bc2 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -104,6 +104,38 @@ int aq_ring_init(struct aq_ring_s *self)
 	return 0;
 }
 
+static inline bool aq_ring_dx_in_range(unsigned int h, unsigned int i,
+				       unsigned int t)
+{
+	return (h < t) ? ((h < i) && (i < t)) : ((h < i) || (i < t));
+}
+
+void aq_ring_update_queue_state(struct aq_ring_s *ring)
+{
+	if (aq_ring_avail_dx(ring) <= AQ_CFG_SKB_FRAGS_MAX)
+		aq_ring_queue_stop(ring);
+	else if (aq_ring_avail_dx(ring) > AQ_CFG_RESTART_DESC_THRES)
+		aq_ring_queue_wake(ring);
+}
+
+void aq_ring_queue_wake(struct aq_ring_s *ring)
+{
+	struct net_device *ndev = aq_nic_get_ndev(ring->aq_nic);
+
+	if (__netif_subqueue_stopped(ndev, ring->idx)) {
+		netif_wake_subqueue(ndev, ring->idx);
+		ring->stats.tx.queue_restarts++;
+	}
+}
+
+void aq_ring_queue_stop(struct aq_ring_s *ring)
+{
+	struct net_device *ndev = aq_nic_get_ndev(ring->aq_nic);
+
+	if (!__netif_subqueue_stopped(ndev, ring->idx))
+		netif_stop_subqueue(ndev, ring->idx);
+}
+
 void aq_ring_tx_clean(struct aq_ring_s *self)
 {
 	struct device *dev = aq_nic_get_dev(self->aq_nic);
@@ -113,23 +145,28 @@ void aq_ring_tx_clean(struct aq_ring_s *self)
 		struct aq_ring_buff_s *buff = &self->buff_ring[self->sw_head];
 
 		if (likely(buff->is_mapped)) {
-			if (unlikely(buff->is_sop))
+			if (unlikely(buff->is_sop)) {
+				if (!buff->is_eop &&
+				    buff->eop_index != 0xffffU &&
+				    (!aq_ring_dx_in_range(self->sw_head,
+						buff->eop_index,
+						self->hw_head)))
+					break;
+
 				dma_unmap_single(dev, buff->pa, buff->len,
 						 DMA_TO_DEVICE);
-			else
+			} else {
 				dma_unmap_page(dev, buff->pa, buff->len,
 					       DMA_TO_DEVICE);
+			}
 		}
 
 		if (unlikely(buff->is_eop))
 			dev_kfree_skb_any(buff->skb);
-	}
-}
 
-static inline unsigned int aq_ring_dx_in_range(unsigned int h, unsigned int i,
-					       unsigned int t)
-{
-	return (h < t) ? ((h < i) && (i < t)) : ((h < i) || (i < t));
+		buff->pa = 0U;
+		buff->eop_index = 0xffffU;
+	}
 }
 
 #define AQ_SKB_ALIGN SKB_DATA_ALIGN(sizeof(struct skb_shared_info))
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
index 782176c5f4f8..5844078764bd 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.h
@@ -65,7 +65,7 @@ struct __packed aq_ring_buff_s {
 	};
 	union {
 		struct {
-			u32 len:16;
+			u16 len;
 			u32 is_ip_cso:1;
 			u32 is_udp_cso:1;
 			u32 is_tcp_cso:1;
@@ -77,8 +77,10 @@ struct __packed aq_ring_buff_s {
 			u32 is_cleaned:1;
 			u32 is_error:1;
 			u32 rsvd3:6;
+			u16 eop_index;
+			u16 rsvd4;
 		};
-		u32 flags;
+		u64 flags;
 	};
 };
 
@@ -94,6 +96,7 @@ struct aq_ring_stats_tx_s {
 	u64 errors;
 	u64 packets;
 	u64 bytes;
+	u64 queue_restarts;
 };
 
 union aq_ring_stats_s {
@@ -147,6 +150,9 @@ struct aq_ring_s *aq_ring_rx_alloc(struct aq_ring_s *self,
 int aq_ring_init(struct aq_ring_s *self);
 void aq_ring_rx_deinit(struct aq_ring_s *self);
 void aq_ring_free(struct aq_ring_s *self);
+void aq_ring_update_queue_state(struct aq_ring_s *ring);
+void aq_ring_queue_wake(struct aq_ring_s *ring);
+void aq_ring_queue_stop(struct aq_ring_s *ring);
 void aq_ring_tx_clean(struct aq_ring_s *self);
 int aq_ring_rx_clean(struct aq_ring_s *self,
 		     struct napi_struct *napi,
diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
index ebf588004c46..5fecc9a099ef 100644
--- a/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_vec.c
@@ -59,12 +59,7 @@ static int aq_vec_poll(struct napi_struct *napi, int budget)
 			if (ring[AQ_VEC_TX_ID].sw_head !=
 			    ring[AQ_VEC_TX_ID].hw_head) {
 				aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
-
-				if (aq_ring_avail_dx(&ring[AQ_VEC_TX_ID]) >
-				    AQ_CFG_SKB_FRAGS_MAX) {
-					aq_nic_ndev_queue_start(self->aq_nic,
-						ring[AQ_VEC_TX_ID].idx);
-				}
+				aq_ring_update_queue_state(&ring[AQ_VEC_TX_ID]);
 				was_tx_cleaned = true;
 			}
 
@@ -364,6 +359,7 @@ void aq_vec_add_stats(struct aq_vec_s *self,
 		stats_tx->packets += tx->packets;
 		stats_tx->bytes += tx->bytes;
 		stats_tx->errors += tx->errors;
+		stats_tx->queue_restarts += tx->queue_restarts;
 	}
 }
 
@@ -377,8 +373,11 @@ int aq_vec_get_sw_stats(struct aq_vec_s *self, u64 *data, unsigned int *p_count)
 	memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
 	aq_vec_add_stats(self, &stats_rx, &stats_tx);
 
+	/* This data should mimic aq_ethtool_queue_stat_names structure
+	 */
 	data[count] += stats_rx.packets;
 	data[++count] += stats_tx.packets;
+	data[++count] += stats_tx.queue_restarts;
 	data[++count] += stats_rx.jumbo_packets;
 	data[++count] += stats_rx.lro_packets;
 	data[++count] += stats_rx.errors;
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
index c5a02df7a48b..07b3c49a16a4 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_a0.c
@@ -765,24 +765,23 @@ err_exit:
 	return err;
 }
 
-static int hw_atl_a0_hw_interrupt_moderation_set(struct aq_hw_s *self,
-						 bool itr_enabled)
+static int hw_atl_a0_hw_interrupt_moderation_set(struct aq_hw_s *self)
 {
 	unsigned int i = 0U;
+	u32 itr_rx;
 
-	if (itr_enabled && self->aq_nic_cfg->itr) {
-		if (self->aq_nic_cfg->itr != 0xFFFFU) {
+	if (self->aq_nic_cfg->itr) {
+		if (self->aq_nic_cfg->itr != AQ_CFG_INTERRUPT_MODERATION_AUTO) {
 			u32 itr_ = (self->aq_nic_cfg->itr >> 1);
 
 			itr_ = min(AQ_CFG_IRQ_MASK, itr_);
 
-			PHAL_ATLANTIC_A0->itr_rx = 0x80000000U |
-					(itr_ << 0x10);
+			itr_rx = 0x80000000U | (itr_ << 0x10);
 		} else  {
 			u32 n = 0xFFFFU & aq_hw_read_reg(self, 0x00002A00U);
 
 			if (n < self->aq_link_status.mbps) {
-				PHAL_ATLANTIC_A0->itr_rx = 0U;
+				itr_rx = 0U;
 			} else {
 				static unsigned int hw_timers_tbl_[] = {
 					0x01CU, /* 10Gbit */
@@ -797,8 +796,7 @@ static int hw_atl_a0_hw_interrupt_moderation_set(struct aq_hw_s *self,
 					hw_atl_utils_mbps_2_speed_index(
 						self->aq_link_status.mbps);
 
-				PHAL_ATLANTIC_A0->itr_rx =
-					0x80000000U |
+				itr_rx = 0x80000000U |
 					(hw_timers_tbl_[speed_index] << 0x10U);
 			}
 
@@ -806,11 +804,11 @@ static int hw_atl_a0_hw_interrupt_moderation_set(struct aq_hw_s *self,
 			aq_hw_write_reg(self, 0x00002A00U, 0x8D000000U);
 		}
 	} else {
-		PHAL_ATLANTIC_A0->itr_rx = 0U;
+		itr_rx = 0U;
 	}
 
 	for (i = HW_ATL_A0_RINGS_MAX; i--;)
-		reg_irq_thr_set(self, PHAL_ATLANTIC_A0->itr_rx, i);
+		reg_irq_thr_set(self, itr_rx, i);
 
 	return aq_hw_err_from_flags(self);
 }
@@ -885,6 +883,7 @@ static struct aq_hw_ops hw_atl_ops_ = {
 	.hw_rss_set                  = hw_atl_a0_hw_rss_set,
 	.hw_rss_hash_set             = hw_atl_a0_hw_rss_hash_set,
 	.hw_get_regs                 = hw_atl_utils_hw_get_regs,
+	.hw_update_stats             = hw_atl_utils_update_stats,
 	.hw_get_hw_stats             = hw_atl_utils_get_hw_stats,
 	.hw_get_fw_version           = hw_atl_utils_get_fw_version,
 };
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
index 21784cc39dab..ec68c20efcbd 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0.c
@@ -788,39 +788,45 @@ err_exit:
 	return err;
 }
 
-static int hw_atl_b0_hw_interrupt_moderation_set(struct aq_hw_s *self,
-						 bool itr_enabled)
+static int hw_atl_b0_hw_interrupt_moderation_set(struct aq_hw_s *self)
 {
 	unsigned int i = 0U;
+	u32 itr_tx = 2U;
+	u32 itr_rx = 2U;
 
-	if (itr_enabled && self->aq_nic_cfg->itr) {
+	switch (self->aq_nic_cfg->itr) {
+	case  AQ_CFG_INTERRUPT_MODERATION_ON:
+	case  AQ_CFG_INTERRUPT_MODERATION_AUTO:
 		tdm_tx_desc_wr_wb_irq_en_set(self, 0U);
 		tdm_tdm_intr_moder_en_set(self, 1U);
 		rdm_rx_desc_wr_wb_irq_en_set(self, 0U);
 		rdm_rdm_intr_moder_en_set(self, 1U);
 
-		PHAL_ATLANTIC_B0->itr_tx = 2U;
-		PHAL_ATLANTIC_B0->itr_rx = 2U;
+		if (self->aq_nic_cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON) {
+			/* HW timers are in 2us units */
+			int tx_max_timer = self->aq_nic_cfg->tx_itr / 2;
+			int tx_min_timer = tx_max_timer / 2;
 
-		if (self->aq_nic_cfg->itr != 0xFFFFU) {
-			unsigned int max_timer = self->aq_nic_cfg->itr / 2U;
-			unsigned int min_timer = self->aq_nic_cfg->itr / 32U;
+			int rx_max_timer = self->aq_nic_cfg->rx_itr / 2;
+			int rx_min_timer = rx_max_timer / 2;
 
-			max_timer = min(0x1FFU, max_timer);
-			min_timer = min(0xFFU, min_timer);
+			tx_max_timer = min(HW_ATL_INTR_MODER_MAX, tx_max_timer);
+			tx_min_timer = min(HW_ATL_INTR_MODER_MIN, tx_min_timer);
+			rx_max_timer = min(HW_ATL_INTR_MODER_MAX, rx_max_timer);
+			rx_min_timer = min(HW_ATL_INTR_MODER_MIN, rx_min_timer);
 
-			PHAL_ATLANTIC_B0->itr_tx |= min_timer << 0x8U;
-			PHAL_ATLANTIC_B0->itr_tx |= max_timer << 0x10U;
-			PHAL_ATLANTIC_B0->itr_rx |= min_timer << 0x8U;
-			PHAL_ATLANTIC_B0->itr_rx |= max_timer << 0x10U;
+			itr_tx |= tx_min_timer << 0x8U;
+			itr_tx |= tx_max_timer << 0x10U;
+			itr_rx |= rx_min_timer << 0x8U;
+			itr_rx |= rx_max_timer << 0x10U;
 		} else {
 			static unsigned int hw_atl_b0_timers_table_tx_[][2] = {
-				{0xffU, 0xffU}, /* 10Gbit */
-				{0xffU, 0x1ffU}, /* 5Gbit */
-				{0xffU, 0x1ffU}, /* 5Gbit 5GS */
-				{0xffU, 0x1ffU}, /* 2.5Gbit */
-				{0xffU, 0x1ffU}, /* 1Gbit */
-				{0xffU, 0x1ffU}, /* 100Mbit */
+				{0xfU, 0xffU}, /* 10Gbit */
+				{0xfU, 0x1ffU}, /* 5Gbit */
+				{0xfU, 0x1ffU}, /* 5Gbit 5GS */
+				{0xfU, 0x1ffU}, /* 2.5Gbit */
+				{0xfU, 0x1ffU}, /* 1Gbit */
+				{0xfU, 0x1ffU}, /* 100Mbit */
 			};
 
 			static unsigned int hw_atl_b0_timers_table_rx_[][2] = {
@@ -836,34 +842,36 @@ static int hw_atl_b0_hw_interrupt_moderation_set(struct aq_hw_s *self,
 					hw_atl_utils_mbps_2_speed_index(
 						self->aq_link_status.mbps);
 
-			PHAL_ATLANTIC_B0->itr_tx |=
-				hw_atl_b0_timers_table_tx_[speed_index]
-				[0] << 0x8U; /* set min timer value */
-			PHAL_ATLANTIC_B0->itr_tx |=
-				hw_atl_b0_timers_table_tx_[speed_index]
-				[1] << 0x10U; /* set max timer value */
-
-			PHAL_ATLANTIC_B0->itr_rx |=
-				hw_atl_b0_timers_table_rx_[speed_index]
-				[0] << 0x8U; /* set min timer value */
-			PHAL_ATLANTIC_B0->itr_rx |=
-				hw_atl_b0_timers_table_rx_[speed_index]
-				[1] << 0x10U; /* set max timer value */
+			/* Update user visible ITR settings */
+			self->aq_nic_cfg->tx_itr = hw_atl_b0_timers_table_tx_
+							[speed_index][1] * 2;
+			self->aq_nic_cfg->rx_itr = hw_atl_b0_timers_table_rx_
+							[speed_index][1] * 2;
+
+			itr_tx |= hw_atl_b0_timers_table_tx_
+						[speed_index][0] << 0x8U;
+			itr_tx |= hw_atl_b0_timers_table_tx_
+						[speed_index][1] << 0x10U;
+
+			itr_rx |= hw_atl_b0_timers_table_rx_
+						[speed_index][0] << 0x8U;
+			itr_rx |= hw_atl_b0_timers_table_rx_
+						[speed_index][1] << 0x10U;
 		}
-	} else {
+		break;
+	case AQ_CFG_INTERRUPT_MODERATION_OFF:
 		tdm_tx_desc_wr_wb_irq_en_set(self, 1U);
 		tdm_tdm_intr_moder_en_set(self, 0U);
 		rdm_rx_desc_wr_wb_irq_en_set(self, 1U);
 		rdm_rdm_intr_moder_en_set(self, 0U);
-		PHAL_ATLANTIC_B0->itr_tx = 0U;
-		PHAL_ATLANTIC_B0->itr_rx = 0U;
+		itr_tx = 0U;
+		itr_rx = 0U;
+		break;
 	}
 
 	for (i = HW_ATL_B0_RINGS_MAX; i--;) {
-		reg_tx_intr_moder_ctrl_set(self,
-					   PHAL_ATLANTIC_B0->itr_tx, i);
-		reg_rx_intr_moder_ctrl_set(self,
-					   PHAL_ATLANTIC_B0->itr_rx, i);
+		reg_tx_intr_moder_ctrl_set(self, itr_tx, i);
+		reg_rx_intr_moder_ctrl_set(self, itr_rx, i);
 	}
 
 	return aq_hw_err_from_flags(self);
@@ -939,6 +947,7 @@ static struct aq_hw_ops hw_atl_ops_ = {
 	.hw_rss_set                  = hw_atl_b0_hw_rss_set,
 	.hw_rss_hash_set             = hw_atl_b0_hw_rss_hash_set,
 	.hw_get_regs                 = hw_atl_utils_hw_get_regs,
+	.hw_update_stats             = hw_atl_utils_update_stats,
 	.hw_get_hw_stats             = hw_atl_utils_get_hw_stats,
 	.hw_get_fw_version           = hw_atl_utils_get_fw_version,
 };
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h
index f3957e930340..9aa2c6edfca2 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_b0_internal.h
@@ -16,7 +16,7 @@
 
 #include "../aq_common.h"
 
-#define HW_ATL_B0_MTU_JUMBO (16000U)
+#define HW_ATL_B0_MTU_JUMBO  16352U
 #define HW_ATL_B0_MTU        1514U
 
 #define HW_ATL_B0_TX_RINGS 4U
@@ -139,6 +139,9 @@
 
 #define HW_ATL_B0_FW_VER_EXPECTED 0x01050006U
 
+#define HW_ATL_INTR_MODER_MAX  0x1FF
+#define HW_ATL_INTR_MODER_MIN  0xFF
+
 /* Hardware tx descriptor */
 struct __packed hw_atl_txd_s {
 	u64 buf_addr;
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
index 4f5ec9a0fbfb..1fe016fc4bc7 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c
@@ -255,6 +255,15 @@ err_exit:
 	return err;
 }
 
+int hw_atl_utils_mpi_read_mbox(struct aq_hw_s *self,
+			       struct hw_aq_atl_utils_mbox_header *pmbox)
+{
+	return hw_atl_utils_fw_downld_dwords(self,
+				      PHAL_ATLANTIC->mbox_addr,
+				      (u32 *)(void *)pmbox,
+				      sizeof(*pmbox) / sizeof(u32));
+}
+
 void hw_atl_utils_mpi_read_stats(struct aq_hw_s *self,
 				 struct hw_aq_atl_utils_mbox *pmbox)
 {
@@ -267,9 +276,6 @@ void hw_atl_utils_mpi_read_stats(struct aq_hw_s *self,
 	if (err < 0)
 		goto err_exit;
 
-	if (pmbox != &PHAL_ATLANTIC->mbox)
-		memcpy(pmbox, &PHAL_ATLANTIC->mbox, sizeof(*pmbox));
-
 	if (IS_CHIP_FEATURE(REVISION_A0)) {
 		unsigned int mtu = self->aq_nic_cfg ?
 					self->aq_nic_cfg->mtu : 1514U;
@@ -299,17 +305,17 @@ void hw_atl_utils_mpi_set(struct aq_hw_s *self,
 {
 	int err = 0;
 	u32 transaction_id = 0;
+	struct hw_aq_atl_utils_mbox_header mbox;
 
 	if (state == MPI_RESET) {
-		hw_atl_utils_mpi_read_stats(self, &PHAL_ATLANTIC->mbox);
+		hw_atl_utils_mpi_read_mbox(self, &mbox);
 
-		transaction_id = PHAL_ATLANTIC->mbox.transaction_id;
+		transaction_id = mbox.transaction_id;
 
 		AQ_HW_WAIT_FOR(transaction_id !=
-				(hw_atl_utils_mpi_read_stats
-					(self, &PHAL_ATLANTIC->mbox),
-					PHAL_ATLANTIC->mbox.transaction_id),
-					1000U, 100U);
+				(hw_atl_utils_mpi_read_mbox(self, &mbox),
+				 mbox.transaction_id),
+			       1000U, 100U);
 		if (err < 0)
 			goto err_exit;
 	}
@@ -351,8 +357,7 @@ int hw_atl_utils_mpi_get_link_status(struct aq_hw_s *self)
 			break;
 
 		default:
-			link_status->mbps = 0U;
-			break;
+			return -EBUSY;
 		}
 	}
 
@@ -493,16 +498,51 @@ int hw_atl_utils_hw_set_power(struct aq_hw_s *self,
 	return 0;
 }
 
+int hw_atl_utils_update_stats(struct aq_hw_s *self)
+{
+	struct hw_atl_s *hw_self = PHAL_ATLANTIC;
+	struct hw_aq_atl_utils_mbox mbox;
+
+	if (!self->aq_link_status.mbps)
+		return 0;
+
+	hw_atl_utils_mpi_read_stats(self, &mbox);
+
+#define AQ_SDELTA(_N_) (hw_self->curr_stats._N_ += \
+			mbox.stats._N_ - hw_self->last_stats._N_)
+
+	AQ_SDELTA(uprc);
+	AQ_SDELTA(mprc);
+	AQ_SDELTA(bprc);
+	AQ_SDELTA(erpt);
+
+	AQ_SDELTA(uptc);
+	AQ_SDELTA(mptc);
+	AQ_SDELTA(bptc);
+	AQ_SDELTA(erpr);
+
+	AQ_SDELTA(ubrc);
+	AQ_SDELTA(ubtc);
+	AQ_SDELTA(mbrc);
+	AQ_SDELTA(mbtc);
+	AQ_SDELTA(bbrc);
+	AQ_SDELTA(bbtc);
+	AQ_SDELTA(dpc);
+
+#undef AQ_SDELTA
+
+	memcpy(&hw_self->last_stats, &mbox.stats, sizeof(mbox.stats));
+
+	return 0;
+}
+
 int hw_atl_utils_get_hw_stats(struct aq_hw_s *self,
 			      u64 *data, unsigned int *p_count)
 {
-	struct hw_atl_stats_s *stats = NULL;
+	struct hw_atl_s *hw_self = PHAL_ATLANTIC;
+	struct hw_atl_stats_s *stats = &hw_self->curr_stats;
 	int i = 0;
 
-	hw_atl_utils_mpi_read_stats(self, &PHAL_ATLANTIC->mbox);
-
-	stats = &PHAL_ATLANTIC->mbox.stats;
-
 	data[i] = stats->uprc + stats->mprc + stats->bprc;
 	data[++i] = stats->uprc;
 	data[++i] = stats->mprc;
diff --git a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
index e0360a6b2202..c99cc690e425 100644
--- a/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
+++ b/drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.h
@@ -115,19 +115,22 @@ struct __packed hw_aq_atl_utils_fw_rpc {
 	};
 };
 
-struct __packed hw_aq_atl_utils_mbox {
+struct __packed hw_aq_atl_utils_mbox_header {
 	u32 version;
 	u32 transaction_id;
-	int error;
+	u32 error;
+};
+
+struct __packed hw_aq_atl_utils_mbox {
+	struct hw_aq_atl_utils_mbox_header header;
 	struct hw_atl_stats_s stats;
 };
 
 struct __packed hw_atl_s {
 	struct aq_hw_s base;
-	struct hw_aq_atl_utils_mbox mbox;
+	struct hw_atl_stats_s last_stats;
+	struct hw_atl_stats_s curr_stats;
 	u64 speed;
-	u32 itr_tx;
-	u32 itr_rx;
 	unsigned int chip_features;
 	u32 fw_ver_actual;
 	atomic_t dpc;
@@ -170,6 +173,9 @@ enum hal_atl_utils_fw_state_e {
 
 void hw_atl_utils_hw_chip_features_init(struct aq_hw_s *self, u32 *p);
 
+int hw_atl_utils_mpi_read_mbox(struct aq_hw_s *self,
+			       struct hw_aq_atl_utils_mbox_header *pmbox);
+
 void hw_atl_utils_mpi_read_stats(struct aq_hw_s *self,
 				 struct hw_aq_atl_utils_mbox *pmbox);
 
@@ -199,6 +205,8 @@ int hw_atl_utils_hw_deinit(struct aq_hw_s *self);
 
 int hw_atl_utils_get_fw_version(struct aq_hw_s *self, u32 *fw_version);
 
+int hw_atl_utils_update_stats(struct aq_hw_s *self);
+
 int hw_atl_utils_get_hw_stats(struct aq_hw_s *self,
 			      u64 *data,
 			      unsigned int *p_count);
diff --git a/drivers/net/ethernet/arc/emac.h b/drivers/net/ethernet/arc/emac.h
index e4feb712d4f2..3c63b16d485f 100644
--- a/drivers/net/ethernet/arc/emac.h
+++ b/drivers/net/ethernet/arc/emac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2004-2013 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/drivers/net/ethernet/arc/emac_mdio.c b/drivers/net/ethernet/arc/emac_mdio.c
index a22403c688c9..0187dbf3b87d 100644
--- a/drivers/net/ethernet/arc/emac_mdio.c
+++ b/drivers/net/ethernet/arc/emac_mdio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2004-2013 Synopsys, Inc. (www.synopsys.com)
  *
diff --git a/drivers/net/ethernet/atheros/Makefile b/drivers/net/ethernet/atheros/Makefile
index 5cf1c65bbce9..aa3d394b87e6 100644
--- a/drivers/net/ethernet/atheros/Makefile
+++ b/drivers/net/ethernet/atheros/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Atheros network device drivers.
 #
diff --git a/drivers/net/ethernet/aurora/nb8800.h b/drivers/net/ethernet/aurora/nb8800.h
index 6ec4a956e1e5..aacc3cce2cc0 100644
--- a/drivers/net/ethernet/aurora/nb8800.h
+++ b/drivers/net/ethernet/aurora/nb8800.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NB8800_H_
 #define _NB8800_H_
 
diff --git a/drivers/net/ethernet/broadcom/Makefile b/drivers/net/ethernet/broadcom/Makefile
index 79f2372c66ec..7046ad6d3d0e 100644
--- a/drivers/net/ethernet/broadcom/Makefile
+++ b/drivers/net/ethernet/broadcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Broadcom network device drivers.
 #
diff --git a/drivers/net/ethernet/broadcom/b44.h b/drivers/net/ethernet/broadcom/b44.h
index 89d2cf341163..b3e36ca0fd19 100644
--- a/drivers/net/ethernet/broadcom/b44.h
+++ b/drivers/net/ethernet/broadcom/b44.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _B44_H
 #define _B44_H
 
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.h b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
index 0a1b7b2e55bd..c6f6f14e87ca 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.h
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_ENET_H_
 #define BCM63XX_ENET_H_
 
diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index a6572b51435a..eb441e5e2cd8 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -432,6 +432,27 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv)
 	netif_dbg(priv, hw, priv->netdev, "updated MIB counters\n");
 }
 
+static void bcm_sysport_update_tx_stats(struct bcm_sysport_priv *priv,
+					u64 *tx_bytes, u64 *tx_packets)
+{
+	struct bcm_sysport_tx_ring *ring;
+	u64 bytes = 0, packets = 0;
+	unsigned int start;
+	unsigned int q;
+
+	for (q = 0; q < priv->netdev->num_tx_queues; q++) {
+		ring = &priv->tx_rings[q];
+		do {
+			start = u64_stats_fetch_begin_irq(&priv->syncp);
+			bytes = ring->bytes;
+			packets = ring->packets;
+		} while (u64_stats_fetch_retry_irq(&priv->syncp, start));
+
+		*tx_bytes += bytes;
+		*tx_packets += packets;
+	}
+}
+
 static void bcm_sysport_get_stats(struct net_device *dev,
 				  struct ethtool_stats *stats, u64 *data)
 {
@@ -439,11 +460,16 @@ static void bcm_sysport_get_stats(struct net_device *dev,
 	struct bcm_sysport_stats64 *stats64 = &priv->stats64;
 	struct u64_stats_sync *syncp = &priv->syncp;
 	struct bcm_sysport_tx_ring *ring;
+	u64 tx_bytes = 0, tx_packets = 0;
 	unsigned int start;
 	int i, j;
 
-	if (netif_running(dev))
+	if (netif_running(dev)) {
 		bcm_sysport_update_mib_counters(priv);
+		bcm_sysport_update_tx_stats(priv, &tx_bytes, &tx_packets);
+		stats64->tx_bytes = tx_bytes;
+		stats64->tx_packets = tx_packets;
+	}
 
 	for (i =  0, j = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
 		const struct bcm_sysport_stats *s;
@@ -461,12 +487,13 @@ static void bcm_sysport_get_stats(struct net_device *dev,
 			continue;
 		p += s->stat_offset;
 
-		if (s->stat_sizeof == sizeof(u64))
+		if (s->stat_sizeof == sizeof(u64) &&
+		    s->type == BCM_SYSPORT_STAT_NETDEV64) {
 			do {
 				start = u64_stats_fetch_begin_irq(syncp);
 				data[i] = *(u64 *)p;
 			} while (u64_stats_fetch_retry_irq(syncp, start));
-		else
+		} else
 			data[i] = *(u32 *)p;
 		j++;
 	}
@@ -1716,30 +1743,12 @@ static void bcm_sysport_get_stats64(struct net_device *dev,
 {
 	struct bcm_sysport_priv *priv = netdev_priv(dev);
 	struct bcm_sysport_stats64 *stats64 = &priv->stats64;
-	struct bcm_sysport_tx_ring *ring;
-	u64 tx_packets = 0, tx_bytes = 0;
 	unsigned int start;
-	unsigned int q;
 
 	netdev_stats_to_stats64(stats, &dev->stats);
 
-	for (q = 0; q < dev->num_tx_queues; q++) {
-		ring = &priv->tx_rings[q];
-		do {
-			start = u64_stats_fetch_begin_irq(&priv->syncp);
-			tx_bytes = ring->bytes;
-			tx_packets = ring->packets;
-		} while (u64_stats_fetch_retry_irq(&priv->syncp, start));
-
-		stats->tx_bytes += tx_bytes;
-		stats->tx_packets += tx_packets;
-	}
-
-	/* lockless update tx_bytes and tx_packets */
-	u64_stats_update_begin(&priv->syncp);
-	stats64->tx_bytes = stats->tx_bytes;
-	stats64->tx_packets = stats->tx_packets;
-	u64_stats_update_end(&priv->syncp);
+	bcm_sysport_update_tx_stats(priv, &stats->tx_bytes,
+				    &stats->tx_packets);
 
 	do {
 		start = u64_stats_fetch_begin_irq(&priv->syncp);
@@ -1800,15 +1809,17 @@ static inline void bcm_sysport_mask_all_intrs(struct bcm_sysport_priv *priv)
 
 static inline void gib_set_pad_extension(struct bcm_sysport_priv *priv)
 {
-	u32 __maybe_unused reg;
+	u32 reg;
 
-	/* Include Broadcom tag in pad extension */
+	reg = gib_readl(priv, GIB_CONTROL);
+	/* Include Broadcom tag in pad extension and fix up IPG_LENGTH */
 	if (netdev_uses_dsa(priv->netdev)) {
-		reg = gib_readl(priv, GIB_CONTROL);
 		reg &= ~(GIB_PAD_EXTENSION_MASK << GIB_PAD_EXTENSION_SHIFT);
 		reg |= ENET_BRCM_TAG_LEN << GIB_PAD_EXTENSION_SHIFT;
-		gib_writel(priv, reg, GIB_CONTROL);
 	}
+	reg &= ~(GIB_IPG_LEN_MASK << GIB_IPG_LEN_SHIFT);
+	reg |= 12 << GIB_IPG_LEN_SHIFT;
+	gib_writel(priv, reg, GIB_CONTROL);
 }
 
 static int bcm_sysport_open(struct net_device *dev)
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 443d57b10264..4040d846da8e 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BGMAC_H
 #define _BGMAC_H
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index aacec8bc19d5..dc5de275352a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -214,6 +214,8 @@ static const u16 bnxt_async_events_arr[] = {
 	ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE,
 };
 
+static struct workqueue_struct *bnxt_pf_wq;
+
 static bool bnxt_vf_pciid(enum board_idx idx)
 {
 	return (idx == NETXTREME_C_VF || idx == NETXTREME_E_VF);
@@ -1024,12 +1026,28 @@ static int bnxt_discard_rx(struct bnxt *bp, struct bnxt_napi *bnapi,
 	return 0;
 }
 
+static void bnxt_queue_sp_work(struct bnxt *bp)
+{
+	if (BNXT_PF(bp))
+		queue_work(bnxt_pf_wq, &bp->sp_task);
+	else
+		schedule_work(&bp->sp_task);
+}
+
+static void bnxt_cancel_sp_work(struct bnxt *bp)
+{
+	if (BNXT_PF(bp))
+		flush_workqueue(bnxt_pf_wq);
+	else
+		cancel_work_sync(&bp->sp_task);
+}
+
 static void bnxt_sched_reset(struct bnxt *bp, struct bnxt_rx_ring_info *rxr)
 {
 	if (!rxr->bnapi->in_reset) {
 		rxr->bnapi->in_reset = true;
 		set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
-		schedule_work(&bp->sp_task);
+		bnxt_queue_sp_work(bp);
 	}
 	rxr->rx_next_cons = 0xffff;
 }
@@ -1717,7 +1735,7 @@ static int bnxt_async_event_process(struct bnxt *bp,
 	default:
 		goto async_event_process_exit;
 	}
-	schedule_work(&bp->sp_task);
+	bnxt_queue_sp_work(bp);
 async_event_process_exit:
 	bnxt_ulp_async_events(bp, cmpl);
 	return 0;
@@ -1751,7 +1769,7 @@ static int bnxt_hwrm_handler(struct bnxt *bp, struct tx_cmp *txcmp)
 
 		set_bit(vf_id - bp->pf.first_vf_id, bp->pf.vf_event_bmap);
 		set_bit(BNXT_HWRM_EXEC_FWD_REQ_SP_EVENT, &bp->sp_event);
-		schedule_work(&bp->sp_task);
+		bnxt_queue_sp_work(bp);
 		break;
 
 	case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
@@ -3448,6 +3466,12 @@ int _hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
 	return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, false);
 }
 
+int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 msg_len,
+			      int timeout)
+{
+	return bnxt_hwrm_do_send_msg(bp, msg, msg_len, timeout, true);
+}
+
 int hwrm_send_message(struct bnxt *bp, void *msg, u32 msg_len, int timeout)
 {
 	int rc;
@@ -6327,7 +6351,9 @@ static int __bnxt_open_nic(struct bnxt *bp, bool irq_re_init, bool link_re_init)
 	}
 
 	if (link_re_init) {
+		mutex_lock(&bp->link_lock);
 		rc = bnxt_update_phy_setting(bp);
+		mutex_unlock(&bp->link_lock);
 		if (rc)
 			netdev_warn(bp->dev, "failed to update phy settings\n");
 	}
@@ -6647,7 +6673,7 @@ static void bnxt_set_rx_mode(struct net_device *dev)
 		vnic->rx_mask = mask;
 
 		set_bit(BNXT_RX_MASK_SP_EVENT, &bp->sp_event);
-		schedule_work(&bp->sp_task);
+		bnxt_queue_sp_work(bp);
 	}
 }
 
@@ -6920,7 +6946,7 @@ static void bnxt_tx_timeout(struct net_device *dev)
 
 	netdev_err(bp->dev,  "TX timeout detected, starting reset task!\n");
 	set_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event);
-	schedule_work(&bp->sp_task);
+	bnxt_queue_sp_work(bp);
 }
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
@@ -6952,7 +6978,7 @@ static void bnxt_timer(unsigned long data)
 	if (bp->link_info.link_up && (bp->flags & BNXT_FLAG_PORT_STATS) &&
 	    bp->stats_coal_ticks) {
 		set_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event);
-		schedule_work(&bp->sp_task);
+		bnxt_queue_sp_work(bp);
 	}
 bnxt_restart_timer:
 	mod_timer(&bp->timer, jiffies + bp->current_interval);
@@ -7025,30 +7051,28 @@ static void bnxt_sp_task(struct work_struct *work)
 	if (test_and_clear_bit(BNXT_PERIODIC_STATS_SP_EVENT, &bp->sp_event))
 		bnxt_hwrm_port_qstats(bp);
 
-	/* These functions below will clear BNXT_STATE_IN_SP_TASK.  They
-	 * must be the last functions to be called before exiting.
-	 */
 	if (test_and_clear_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event)) {
-		int rc = 0;
+		int rc;
 
+		mutex_lock(&bp->link_lock);
 		if (test_and_clear_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT,
 				       &bp->sp_event))
 			bnxt_hwrm_phy_qcaps(bp);
 
-		bnxt_rtnl_lock_sp(bp);
-		if (test_bit(BNXT_STATE_OPEN, &bp->state))
-			rc = bnxt_update_link(bp, true);
-		bnxt_rtnl_unlock_sp(bp);
+		rc = bnxt_update_link(bp, true);
+		mutex_unlock(&bp->link_lock);
 		if (rc)
 			netdev_err(bp->dev, "SP task can't update link (rc: %x)\n",
 				   rc);
 	}
 	if (test_and_clear_bit(BNXT_HWRM_PORT_MODULE_SP_EVENT, &bp->sp_event)) {
-		bnxt_rtnl_lock_sp(bp);
-		if (test_bit(BNXT_STATE_OPEN, &bp->state))
-			bnxt_get_port_module_status(bp);
-		bnxt_rtnl_unlock_sp(bp);
+		mutex_lock(&bp->link_lock);
+		bnxt_get_port_module_status(bp);
+		mutex_unlock(&bp->link_lock);
 	}
+	/* These functions below will clear BNXT_STATE_IN_SP_TASK.  They
+	 * must be the last functions to be called before exiting.
+	 */
 	if (test_and_clear_bit(BNXT_RESET_TASK_SP_EVENT, &bp->sp_event))
 		bnxt_reset(bp, false);
 
@@ -7433,7 +7457,7 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
 	spin_unlock_bh(&bp->ntp_fltr_lock);
 
 	set_bit(BNXT_RX_NTP_FLTR_SP_EVENT, &bp->sp_event);
-	schedule_work(&bp->sp_task);
+	bnxt_queue_sp_work(bp);
 
 	return new_fltr->sw_id;
 
@@ -7516,7 +7540,7 @@ static void bnxt_udp_tunnel_add(struct net_device *dev,
 		if (bp->vxlan_port_cnt == 1) {
 			bp->vxlan_port = ti->port;
 			set_bit(BNXT_VXLAN_ADD_PORT_SP_EVENT, &bp->sp_event);
-			schedule_work(&bp->sp_task);
+			bnxt_queue_sp_work(bp);
 		}
 		break;
 	case UDP_TUNNEL_TYPE_GENEVE:
@@ -7533,7 +7557,7 @@ static void bnxt_udp_tunnel_add(struct net_device *dev,
 		return;
 	}
 
-	schedule_work(&bp->sp_task);
+	bnxt_queue_sp_work(bp);
 }
 
 static void bnxt_udp_tunnel_del(struct net_device *dev,
@@ -7572,7 +7596,7 @@ static void bnxt_udp_tunnel_del(struct net_device *dev,
 		return;
 	}
 
-	schedule_work(&bp->sp_task);
+	bnxt_queue_sp_work(bp);
 }
 
 static int bnxt_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
@@ -7720,7 +7744,7 @@ static void bnxt_remove_one(struct pci_dev *pdev)
 	pci_disable_pcie_error_reporting(pdev);
 	unregister_netdev(dev);
 	bnxt_shutdown_tc(bp);
-	cancel_work_sync(&bp->sp_task);
+	bnxt_cancel_sp_work(bp);
 	bp->sp_event = 0;
 
 	bnxt_clear_int_mode(bp);
@@ -7748,6 +7772,7 @@ static int bnxt_probe_phy(struct bnxt *bp)
 			   rc);
 		return rc;
 	}
+	mutex_init(&bp->link_lock);
 
 	rc = bnxt_update_link(bp, false);
 	if (rc) {
@@ -7946,7 +7971,7 @@ static void bnxt_parse_log_pcie_link(struct bnxt *bp)
 	enum pcie_link_width width = PCIE_LNK_WIDTH_UNKNOWN;
 	enum pci_bus_speed speed = PCI_SPEED_UNKNOWN;
 
-	if (pcie_get_minimum_link(bp->pdev, &speed, &width) ||
+	if (pcie_get_minimum_link(pci_physfn(bp->pdev), &speed, &width) ||
 	    speed == PCI_SPEED_UNKNOWN || width == PCIE_LNK_WIDTH_UNKNOWN)
 		netdev_info(bp->dev, "Failed to determine PCIe Link Info\n");
 	else
@@ -8138,8 +8163,17 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	else
 		device_set_wakeup_capable(&pdev->dev, false);
 
-	if (BNXT_PF(bp))
+	if (BNXT_PF(bp)) {
+		if (!bnxt_pf_wq) {
+			bnxt_pf_wq =
+				create_singlethread_workqueue("bnxt_pf_wq");
+			if (!bnxt_pf_wq) {
+				dev_err(&pdev->dev, "Unable to create workqueue.\n");
+				goto init_err_pci_clean;
+			}
+		}
 		bnxt_init_tc(bp);
+	}
 
 	rc = register_netdev(dev);
 	if (rc)
@@ -8375,4 +8409,17 @@ static struct pci_driver bnxt_pci_driver = {
 #endif
 };
 
-module_pci_driver(bnxt_pci_driver);
+static int __init bnxt_init(void)
+{
+	return pci_register_driver(&bnxt_pci_driver);
+}
+
+static void __exit bnxt_exit(void)
+{
+	pci_unregister_driver(&bnxt_pci_driver);
+	if (bnxt_pf_wq)
+		destroy_workqueue(bnxt_pf_wq);
+}
+
+module_init(bnxt_init);
+module_exit(bnxt_exit);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 7b888d4b2b55..c911e69ff25f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1290,6 +1290,10 @@ struct bnxt {
 	unsigned long		*ntp_fltr_bmap;
 	int			ntp_fltr_count;
 
+	/* To protect link related settings during link changes and
+	 * ethtool settings changes.
+	 */
+	struct mutex		link_lock;
 	struct bnxt_link_info	link_info;
 	struct ethtool_eee	eee;
 	u32			lpi_tmr_lo;
@@ -1358,6 +1362,7 @@ void bnxt_set_ring_params(struct bnxt *);
 int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode);
 void bnxt_hwrm_cmd_hdr_init(struct bnxt *, void *, u16, u16, u16);
 int _hwrm_send_message(struct bnxt *, void *, u32, int);
+int _hwrm_send_message_silent(struct bnxt *bp, void *msg, u32 len, int timeout);
 int hwrm_send_message(struct bnxt *, void *, u32, int);
 int hwrm_send_message_silent(struct bnxt *, void *, u32, int);
 int bnxt_hwrm_func_rgtr_async_events(struct bnxt *bp, unsigned long *bmap,
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
index aa1f3a2c7a78..fed37cd9ae1d 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c
@@ -50,7 +50,9 @@ static int bnxt_hwrm_queue_pri2cos_qcfg(struct bnxt *bp, struct ieee_ets *ets)
 
 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PRI2COS_QCFG, -1, -1);
 	req.flags = cpu_to_le32(QUEUE_PRI2COS_QCFG_REQ_FLAGS_IVLAN);
-	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+
+	mutex_lock(&bp->hwrm_cmd_lock);
+	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (!rc) {
 		u8 *pri2cos = &resp->pri0_cos_queue_id;
 		int i, j;
@@ -66,6 +68,7 @@ static int bnxt_hwrm_queue_pri2cos_qcfg(struct bnxt *bp, struct ieee_ets *ets)
 			}
 		}
 	}
+	mutex_unlock(&bp->hwrm_cmd_lock);
 	return rc;
 }
 
@@ -119,9 +122,13 @@ static int bnxt_hwrm_queue_cos2bw_qcfg(struct bnxt *bp, struct ieee_ets *ets)
 	int rc, i;
 
 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_COS2BW_QCFG, -1, -1);
-	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
+
+	mutex_lock(&bp->hwrm_cmd_lock);
+	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+	if (rc) {
+		mutex_unlock(&bp->hwrm_cmd_lock);
 		return rc;
+	}
 
 	data = &resp->queue_id0 + offsetof(struct bnxt_cos2bw_cfg, queue_id);
 	for (i = 0; i < bp->max_tc; i++, data += sizeof(cos2bw) - 4) {
@@ -143,6 +150,7 @@ static int bnxt_hwrm_queue_cos2bw_qcfg(struct bnxt *bp, struct ieee_ets *ets)
 			}
 		}
 	}
+	mutex_unlock(&bp->hwrm_cmd_lock);
 	return 0;
 }
 
@@ -240,12 +248,17 @@ static int bnxt_hwrm_queue_pfc_qcfg(struct bnxt *bp, struct ieee_pfc *pfc)
 	int rc;
 
 	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_QUEUE_PFCENABLE_QCFG, -1, -1);
-	rc = hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
-	if (rc)
+
+	mutex_lock(&bp->hwrm_cmd_lock);
+	rc = _hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+	if (rc) {
+		mutex_unlock(&bp->hwrm_cmd_lock);
 		return rc;
+	}
 
 	pri_mask = le32_to_cpu(resp->flags);
 	pfc->pfc_en = pri_mask;
+	mutex_unlock(&bp->hwrm_cmd_lock);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 8eff05a3e0e4..3cbe771b3352 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1052,6 +1052,7 @@ static int bnxt_get_link_ksettings(struct net_device *dev,
 	u32 ethtool_speed;
 
 	ethtool_link_ksettings_zero_link_mode(lk_ksettings, supported);
+	mutex_lock(&bp->link_lock);
 	bnxt_fw_to_ethtool_support_spds(link_info, lk_ksettings);
 
 	ethtool_link_ksettings_zero_link_mode(lk_ksettings, advertising);
@@ -1099,6 +1100,7 @@ static int bnxt_get_link_ksettings(struct net_device *dev,
 			base->port = PORT_FIBRE;
 	}
 	base->phy_address = link_info->phy_addr;
+	mutex_unlock(&bp->link_lock);
 
 	return 0;
 }
@@ -1190,6 +1192,7 @@ static int bnxt_set_link_ksettings(struct net_device *dev,
 	if (!BNXT_SINGLE_PF(bp))
 		return -EOPNOTSUPP;
 
+	mutex_lock(&bp->link_lock);
 	if (base->autoneg == AUTONEG_ENABLE) {
 		BNXT_ETHTOOL_TO_FW_SPDS(fw_advertising, lk_ksettings,
 					advertising);
@@ -1234,6 +1237,7 @@ static int bnxt_set_link_ksettings(struct net_device *dev,
 		rc = bnxt_hwrm_set_link_setting(bp, set_pause, false);
 
 set_setting_exit:
+	mutex_unlock(&bp->link_lock);
 	return rc;
 }
 
@@ -1805,7 +1809,8 @@ static int bnxt_find_nvram_item(struct net_device *dev, u16 type, u16 ordinal,
 	req.dir_ordinal = cpu_to_le16(ordinal);
 	req.dir_ext = cpu_to_le16(ext);
 	req.opt_ordinal = NVM_FIND_DIR_ENTRY_REQ_OPT_ORDINAL_EQ;
-	rc = hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+	mutex_lock(&bp->hwrm_cmd_lock);
+	rc = _hwrm_send_message_silent(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 	if (rc == 0) {
 		if (index)
 			*index = le16_to_cpu(output->dir_idx);
@@ -1814,6 +1819,7 @@ static int bnxt_find_nvram_item(struct net_device *dev, u16 type, u16 ordinal,
 		if (data_length)
 			*data_length = le32_to_cpu(output->dir_data_length);
 	}
+	mutex_unlock(&bp->hwrm_cmd_lock);
 	return rc;
 }
 
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
index d37925a8a65b..5ee18660bc33 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_sriov.c
@@ -502,6 +502,7 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)
 	int rc = 0, vfs_supported;
 	int min_rx_rings, min_tx_rings, min_rss_ctxs;
 	int tx_ok = 0, rx_ok = 0, rss_ok = 0;
+	int avail_cp, avail_stat;
 
 	/* Check if we can enable requested num of vf's. At a mininum
 	 * we require 1 RX 1 TX rings for each VF. In this minimum conf
@@ -509,6 +510,10 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)
 	 */
 	vfs_supported = *num_vfs;
 
+	avail_cp = bp->pf.max_cp_rings - bp->cp_nr_rings;
+	avail_stat = bp->pf.max_stat_ctxs - bp->num_stat_ctxs;
+	avail_cp = min_t(int, avail_cp, avail_stat);
+
 	while (vfs_supported) {
 		min_rx_rings = vfs_supported;
 		min_tx_rings = vfs_supported;
@@ -523,10 +528,12 @@ static int bnxt_sriov_enable(struct bnxt *bp, int *num_vfs)
 			    min_rx_rings)
 				rx_ok = 1;
 		}
-		if (bp->pf.max_vnics - bp->nr_vnics < min_rx_rings)
+		if (bp->pf.max_vnics - bp->nr_vnics < min_rx_rings ||
+		    avail_cp < min_rx_rings)
 			rx_ok = 0;
 
-		if (bp->pf.max_tx_rings - bp->tx_nr_rings >= min_tx_rings)
+		if (bp->pf.max_tx_rings - bp->tx_nr_rings >= min_tx_rings &&
+		    avail_cp >= min_tx_rings)
 			tx_ok = 1;
 
 		if (bp->pf.max_rsscos_ctxs - bp->rsscos_nr_ctxs >= min_rss_ctxs)
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
index ccd699fb2d70..7dd3d131043a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_tc.c
@@ -750,6 +750,10 @@ int bnxt_tc_setup_flower(struct bnxt *bp, u16 src_fid,
 {
 	int rc = 0;
 
+	if (!is_classid_clsact_ingress(cls_flower->common.classid) ||
+	    cls_flower->common.chain_index)
+		return -EOPNOTSUPP;
+
 	switch (cls_flower->command) {
 	case TC_CLSFLOWER_REPLACE:
 		rc = bnxt_tc_add_flow(bp, src_fid, cls_flower);
diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index cec94bbb2ea5..8bc126a156e8 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -1278,7 +1278,7 @@ static int cnic_alloc_bnx2x_resc(struct cnic_dev *dev)
 
 	ret = cnic_alloc_dma(dev, kwq_16_dma, pages, 0);
 	if (ret)
-		return -ENOMEM;
+		goto error;
 
 	n = CNIC_PAGE_SIZE / CNIC_KWQ16_DATA_SIZE;
 	for (i = 0, j = 0; i < cp->max_cid_space; i++) {
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index af33dc15c55f..656e6af70f0a 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -11536,11 +11536,11 @@ static int tg3_start(struct tg3 *tp, bool reset_phy, bool test_irq,
 	tg3_napi_enable(tp);
 
 	for (i = 0; i < tp->irq_cnt; i++) {
-		struct tg3_napi *tnapi = &tp->napi[i];
 		err = tg3_request_irq(tp, i);
 		if (err) {
 			for (i--; i >= 0; i--) {
-				tnapi = &tp->napi[i];
+				struct tg3_napi *tnapi = &tp->napi[i];
+
 				free_irq(tnapi->irq_vec, tnapi);
 			}
 			goto out_napi_fini;
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 3b5e98ecba00..c2d02d02d1e6 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: tg3.h,v 1.37.2.32 2002/03/11 12:18:18 davem Exp $
  * tg3.h: Definitions for Broadcom Tigon3 ethernet driver.
  *
diff --git a/drivers/net/ethernet/cadence/Makefile b/drivers/net/ethernet/cadence/Makefile
index 1d66ddb68969..1f33cdca9a3c 100644
--- a/drivers/net/ethernet/cadence/Makefile
+++ b/drivers/net/ethernet/cadence/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Atmel network device drivers.
 #
diff --git a/drivers/net/ethernet/cavium/liquidio/Makefile b/drivers/net/ethernet/cavium/liquidio/Makefile
index c4d411d1aa28..b802896bb2e0 100644
--- a/drivers/net/ethernet/cavium/liquidio/Makefile
+++ b/drivers/net/ethernet/cavium/liquidio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Cavium Liquidio ethernet device driver
 #
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index e7f54948173f..5b19826a7e16 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -1847,7 +1847,7 @@ static int liquidio_ptp_settime(struct ptp_clock_info *ptp,
 	struct lio *lio = container_of(ptp, struct lio, ptp_info);
 	struct octeon_device *oct = (struct octeon_device *)lio->oct_dev;
 
-	ns = timespec_to_ns(ts);
+	ns = timespec64_to_ns(ts);
 
 	spin_lock_irqsave(&lio->ptp_lock, flags);
 	lio_pci_writeq(oct, ns, CN6XXX_MIO_PTP_CLOCK_HI);
diff --git a/drivers/net/ethernet/cavium/thunder/Makefile b/drivers/net/ethernet/cavium/thunder/Makefile
index 6b4d4add7353..2fc6142d1634 100644
--- a/drivers/net/ethernet/cavium/thunder/Makefile
+++ b/drivers/net/ethernet/cavium/thunder/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Cavium's Thunder ethernet device
 #
diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index 49b80da51ba7..805ab45e9b5a 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -565,8 +565,10 @@ static inline bool nicvf_xdp_rx(struct nicvf *nic, struct bpf_prog *prog,
 		return true;
 	default:
 		bpf_warn_invalid_xdp_action(action);
+		/* fall through */
 	case XDP_ABORTED:
 		trace_xdp_exception(nic->netdev, prog, action);
+		/* fall through */
 	case XDP_DROP:
 		/* Check if it's a recycled page, if not
 		 * unmap the DMA mapping.
diff --git a/drivers/net/ethernet/chelsio/Makefile b/drivers/net/ethernet/chelsio/Makefile
index b6a5eec6ed8e..c0f978d2e8a7 100644
--- a/drivers/net/ethernet/chelsio/Makefile
+++ b/drivers/net/ethernet/chelsio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Chelsio network device drivers.
 #
diff --git a/drivers/net/ethernet/chelsio/cxgb/fpga_defs.h b/drivers/net/ethernet/chelsio/cxgb/fpga_defs.h
index ccdb2bc9ae98..e9c65d812c4e 100644
--- a/drivers/net/ethernet/chelsio/cxgb/fpga_defs.h
+++ b/drivers/net/ethernet/chelsio/cxgb/fpga_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Date: 2005/03/07 23:59:05 $ $RCSfile: fpga_defs.h,v $ $Revision: 1.4 $ */
 
 /*
diff --git a/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.c b/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.c
index 76ce6e538326..30b003484fc1 100644
--- a/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.c
+++ b/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Date: 2005/10/24 23:18:13 $ $RCSfile: mv88e1xxx.c,v $ $Revision: 1.49 $ */
 #include "common.h"
 #include "mv88e1xxx.h"
diff --git a/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.h b/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.h
index 967cc4286359..11bf0f7c2f90 100644
--- a/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.h
+++ b/drivers/net/ethernet/chelsio/cxgb/mv88e1xxx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Date: 2005/03/07 23:59:05 $ $RCSfile: mv88e1xxx.h,v $ $Revision: 1.13 $ */
 #ifndef CHELSIO_MV8E1XXX_H
 #define CHELSIO_MV8E1XXX_H
diff --git a/drivers/net/ethernet/chelsio/cxgb/my3126.c b/drivers/net/ethernet/chelsio/cxgb/my3126.c
index d546f46c8ef7..20c09cc4b323 100644
--- a/drivers/net/ethernet/chelsio/cxgb/my3126.c
+++ b/drivers/net/ethernet/chelsio/cxgb/my3126.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Date: 2005/11/12 02:13:49 $ $RCSfile: my3126.c,v $ $Revision: 1.15 $ */
 #include "cphy.h"
 #include "elmer0.h"
diff --git a/drivers/net/ethernet/chelsio/cxgb/tp.c b/drivers/net/ethernet/chelsio/cxgb/tp.c
index b146acabf982..4337cee0763e 100644
--- a/drivers/net/ethernet/chelsio/cxgb/tp.c
+++ b/drivers/net/ethernet/chelsio/cxgb/tp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Date: 2006/02/07 04:21:54 $ $RCSfile: tp.c,v $ $Revision: 1.73 $ */
 #include "common.h"
 #include "regs.h"
diff --git a/drivers/net/ethernet/chelsio/cxgb/tp.h b/drivers/net/ethernet/chelsio/cxgb/tp.h
index dfd8ce25106a..ba15675d56df 100644
--- a/drivers/net/ethernet/chelsio/cxgb/tp.h
+++ b/drivers/net/ethernet/chelsio/cxgb/tp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Date: 2005/03/07 23:59:05 $ $RCSfile: tp.h,v $ $Revision: 1.20 $ */
 #ifndef CHELSIO_TP_H
 #define CHELSIO_TP_H
diff --git a/drivers/net/ethernet/chelsio/cxgb/vsc7326.c b/drivers/net/ethernet/chelsio/cxgb/vsc7326.c
index bdc895bd2a46..873c1c7b4ca0 100644
--- a/drivers/net/ethernet/chelsio/cxgb/vsc7326.c
+++ b/drivers/net/ethernet/chelsio/cxgb/vsc7326.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* $Date: 2006/04/28 19:20:06 $ $RCSfile: vsc7326.c,v $ $Revision: 1.19 $ */
 
 /* Driver for Vitesse VSC7326 (Schaumburg) MAC */
diff --git a/drivers/net/ethernet/chelsio/cxgb/vsc7326_reg.h b/drivers/net/ethernet/chelsio/cxgb/vsc7326_reg.h
index 479edbcabe68..04503857c6a9 100644
--- a/drivers/net/ethernet/chelsio/cxgb/vsc7326_reg.h
+++ b/drivers/net/ethernet/chelsio/cxgb/vsc7326_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Date: 2006/04/28 19:20:17 $ $RCSfile: vsc7326_reg.h,v $ $Revision: 1.5 $ */
 #ifndef _VSC7321_REG_H_
 #define _VSC7321_REG_H_
diff --git a/drivers/net/ethernet/chelsio/cxgb3/regs.h b/drivers/net/ethernet/chelsio/cxgb3/regs.h
index 81029b872bdd..174eb45100a4 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb3/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define A_SG_CONTROL 0x0
 
 #define S_CONGMODE    29
diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge_defs.h b/drivers/net/ethernet/chelsio/cxgb3/sge_defs.h
index 29b6c800b238..c31ce8dc95fb 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge_defs.h
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is automatically generated --- any changes will be lost.
  */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/Makefile b/drivers/net/ethernet/chelsio/cxgb4/Makefile
index 817212702f0a..24143c8abfdb 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/Makefile
+++ b/drivers/net/ethernet/chelsio/cxgb4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Chelsio T4 driver
 #
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index 4ef68f69b58c..fe5cedd96a24 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -405,7 +405,7 @@ void free_tx_desc(struct adapter *adap, struct sge_txq *q,
  */
 static inline int reclaimable(const struct sge_txq *q)
 {
-	int hw_cidx = ntohs(ACCESS_ONCE(q->stat->cidx));
+	int hw_cidx = ntohs(READ_ONCE(q->stat->cidx));
 	hw_cidx -= q->cidx;
 	return hw_cidx < 0 ? hw_cidx + q->size : hw_cidx;
 }
@@ -1375,7 +1375,7 @@ out_free:	dev_kfree_skb_any(skb);
  */
 static inline void reclaim_completed_tx_imm(struct sge_txq *q)
 {
-	int hw_cidx = ntohs(ACCESS_ONCE(q->stat->cidx));
+	int hw_cidx = ntohs(READ_ONCE(q->stat->cidx));
 	int reclaim = hw_cidx - q->cidx;
 
 	if (reclaim < 0)
@@ -1537,7 +1537,13 @@ int t4_mgmt_tx(struct adapter *adap, struct sk_buff *skb)
  */
 static inline int is_ofld_imm(const struct sk_buff *skb)
 {
-	return skb->len <= MAX_IMM_TX_PKT_LEN;
+	struct work_request_hdr *req = (struct work_request_hdr *)skb->data;
+	unsigned long opcode = FW_WR_OP_G(ntohl(req->wr_hi));
+
+	if (opcode == FW_CRYPTO_LOOKASIDE_WR)
+		return skb->len <= SGE_MAX_WR_LEN;
+	else
+		return skb->len <= MAX_IMM_TX_PKT_LEN;
 }
 
 /**
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h
index f2d623a7aee0..123e2c1b65f5 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_version.h
@@ -37,7 +37,7 @@
 
 #define T4FW_VERSION_MAJOR 0x01
 #define T4FW_VERSION_MINOR 0x10
-#define T4FW_VERSION_MICRO 0x2D
+#define T4FW_VERSION_MICRO 0x3F
 #define T4FW_VERSION_BUILD 0x00
 
 #define T4FW_MIN_VERSION_MAJOR 0x01
@@ -46,7 +46,7 @@
 
 #define T5FW_VERSION_MAJOR 0x01
 #define T5FW_VERSION_MINOR 0x10
-#define T5FW_VERSION_MICRO 0x2D
+#define T5FW_VERSION_MICRO 0x3F
 #define T5FW_VERSION_BUILD 0x00
 
 #define T5FW_MIN_VERSION_MAJOR 0x00
@@ -55,7 +55,7 @@
 
 #define T6FW_VERSION_MAJOR 0x01
 #define T6FW_VERSION_MINOR 0x10
-#define T6FW_VERSION_MICRO 0x2D
+#define T6FW_VERSION_MICRO 0x3F
 #define T6FW_VERSION_BUILD 0x00
 
 #define T6FW_MIN_VERSION_MAJOR 0x00
diff --git a/drivers/net/ethernet/cisco/enic/enic_clsf.c b/drivers/net/ethernet/cisco/enic/enic_clsf.c
index 3c677ed3c29e..8dc21c9f9716 100644
--- a/drivers/net/ethernet/cisco/enic/enic_clsf.c
+++ b/drivers/net/ethernet/cisco/enic/enic_clsf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/if.h>
 #include <linux/if_ether.h>
 #include <linux/if_link.h>
diff --git a/drivers/net/ethernet/cisco/enic/enic_clsf.h b/drivers/net/ethernet/cisco/enic/enic_clsf.h
index 6aa9f89d073b..d3c4a1cb0610 100644
--- a/drivers/net/ethernet/cisco/enic/enic_clsf.h
+++ b/drivers/net/ethernet/cisco/enic/enic_clsf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ENIC_CLSF_H_
 #define _ENIC_CLSF_H_
 
diff --git a/drivers/net/ethernet/davicom/dm9000.h b/drivers/net/ethernet/davicom/dm9000.h
index 9ce058adabab..581b35ad44ef 100644
--- a/drivers/net/ethernet/davicom/dm9000.h
+++ b/drivers/net/ethernet/davicom/dm9000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dm9000 Ethernet
  */
diff --git a/drivers/net/ethernet/dec/tulip/Makefile b/drivers/net/ethernet/dec/tulip/Makefile
index 5e8be38b45bb..8aab37564d5d 100644
--- a/drivers/net/ethernet/dec/tulip/Makefile
+++ b/drivers/net/ethernet/dec/tulip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux "Tulip" family network device drivers.
 #
diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 674cf9d13b98..8984c4938881 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -930,6 +930,14 @@ static inline bool is_ipv4_pkt(struct sk_buff *skb)
 	return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4;
 }
 
+static inline bool is_ipv6_ext_hdr(struct sk_buff *skb)
+{
+	if (ip_hdr(skb)->version == 6)
+		return ipv6_ext_hdr(ipv6_hdr(skb)->nexthdr);
+	else
+		return false;
+}
+
 #define be_error_recovering(adapter)	\
 		(adapter->flags & BE_FLAGS_TRY_RECOVERY)
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 319eee36649b..c6e859a27ee6 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -605,7 +605,7 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
 
 	if (wrapped)
 		newacc += 65536;
-	ACCESS_ONCE(*acc) = newacc;
+	WRITE_ONCE(*acc, newacc);
 }
 
 static void populate_erx_stats(struct be_adapter *adapter,
@@ -5089,6 +5089,20 @@ static netdev_features_t be_features_check(struct sk_buff *skb,
 	struct be_adapter *adapter = netdev_priv(dev);
 	u8 l4_hdr = 0;
 
+	if (skb_is_gso(skb)) {
+		/* IPv6 TSO requests with extension hdrs are a problem
+		 * to Lancer and BE3 HW. Disable TSO6 feature.
+		 */
+		if (!skyhawk_chip(adapter) && is_ipv6_ext_hdr(skb))
+			features &= ~NETIF_F_TSO6;
+
+		/* Lancer cannot handle the packet with MSS less than 256.
+		 * Disable the GSO support in such cases
+		 */
+		if (lancer_chip(adapter) && skb_shinfo(skb)->gso_size < 256)
+			features &= ~NETIF_F_GSO_MASK;
+	}
+
 	/* The code below restricts offload features for some tunneled and
 	 * Q-in-Q packets.
 	 * Offload features for normal (non tunnel) packets are unchanged.
diff --git a/drivers/net/ethernet/freescale/Makefile b/drivers/net/ethernet/freescale/Makefile
index c46df5c82af5..ed8ad0fefbda 100644
--- a/drivers/net/ethernet/freescale/Makefile
+++ b/drivers/net/ethernet/freescale/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Freescale network device drivers.
 #
diff --git a/drivers/net/ethernet/freescale/dpaa/Makefile b/drivers/net/ethernet/freescale/dpaa/Makefile
index 7db50bccb137..4f23e79232fa 100644
--- a/drivers/net/ethernet/freescale/dpaa/Makefile
+++ b/drivers/net/ethernet/freescale/dpaa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Freescale DPAA Ethernet controllers
 #
diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 38c7b21e5d63..44720f83af27 100644
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /****************************************************************************/
 
 /*
@@ -374,8 +375,8 @@ struct bufdesc_ex {
 #define FEC_ENET_TS_AVAIL       ((uint)0x00010000)
 #define FEC_ENET_TS_TIMER       ((uint)0x00008000)
 
-#define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII | FEC_ENET_TS_TIMER)
-#define FEC_NAPI_IMASK	(FEC_ENET_MII | FEC_ENET_TS_TIMER)
+#define FEC_DEFAULT_IMASK (FEC_ENET_TXF | FEC_ENET_RXF | FEC_ENET_MII)
+#define FEC_NAPI_IMASK	FEC_ENET_MII
 #define FEC_RX_DISABLED_IMASK (FEC_DEFAULT_IMASK & (~FEC_ENET_RXF))
 
 /* ENET interrupt coalescing macro define */
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 56f56d6ada9c..3dc2d771a222 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1559,14 +1559,14 @@ fec_enet_collect_events(struct fec_enet_private *fep, uint int_events)
 	if (int_events == 0)
 		return false;
 
-	if (int_events & FEC_ENET_RXF)
+	if (int_events & FEC_ENET_RXF_0)
 		fep->work_rx |= (1 << 2);
 	if (int_events & FEC_ENET_RXF_1)
 		fep->work_rx |= (1 << 0);
 	if (int_events & FEC_ENET_RXF_2)
 		fep->work_rx |= (1 << 1);
 
-	if (int_events & FEC_ENET_TXF)
+	if (int_events & FEC_ENET_TXF_0)
 		fep->work_tx |= (1 << 2);
 	if (int_events & FEC_ENET_TXF_1)
 		fep->work_tx |= (1 << 0);
@@ -1604,8 +1604,8 @@ fec_enet_interrupt(int irq, void *dev_id)
 	}
 
 	if (fep->ptp_clock)
-		fec_ptp_check_pps_event(fep);
-
+		if (fec_ptp_check_pps_event(fep))
+			ret = IRQ_HANDLED;
 	return ret;
 }
 
diff --git a/drivers/net/ethernet/freescale/fman/Makefile b/drivers/net/ethernet/freescale/fman/Makefile
index 2c38119b172c..f83a3653b63b 100644
--- a/drivers/net/ethernet/freescale/fman/Makefile
+++ b/drivers/net/ethernet/freescale/fman/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y +=  -I$(srctree)/drivers/net/ethernet/freescale/fman
 
 obj-$(CONFIG_FSL_FMAN) += fsl_fman.o
diff --git a/drivers/net/ethernet/freescale/fs_enet/Makefile b/drivers/net/ethernet/freescale/fs_enet/Makefile
index d4a305ee3455..1821f94ef619 100644
--- a/drivers/net/ethernet/freescale/fs_enet/Makefile
+++ b/drivers/net/ethernet/freescale/fs_enet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Freescale Ethernet controllers
 #
diff --git a/drivers/net/ethernet/freescale/fs_enet/fec.h b/drivers/net/ethernet/freescale/fs_enet/fec.h
index b9fe5bde432a..7832db71dcb9 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fec.h
+++ b/drivers/net/ethernet/freescale/fs_enet/fec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_ENET_FEC_H
 #define FS_ENET_FEC_H
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet.h b/drivers/net/ethernet/freescale/fs_enet/fs_enet.h
index 5ce516c8a62a..168e10ea487f 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet.h
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_ENET_H
 #define FS_ENET_H
 
diff --git a/drivers/net/ethernet/hisilicon/Makefile b/drivers/net/ethernet/hisilicon/Makefile
index 3828c435c18f..7f76d412047a 100644
--- a/drivers/net/ethernet/hisilicon/Makefile
+++ b/drivers/net/ethernet/hisilicon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the HISILICON network device drivers.
 #
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
index 0cec06bec63e..340e28211135 100644
--- a/drivers/net/ethernet/hisilicon/hip04_eth.c
+++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
@@ -373,7 +373,7 @@ static int hip04_tx_reclaim(struct net_device *ndev, bool force)
 	unsigned int count;
 
 	smp_rmb();
-	count = tx_count(ACCESS_ONCE(priv->tx_head), tx_tail);
+	count = tx_count(READ_ONCE(priv->tx_head), tx_tail);
 	if (count == 0)
 		goto out;
 
@@ -431,7 +431,7 @@ static int hip04_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	dma_addr_t phys;
 
 	smp_rmb();
-	count = tx_count(tx_head, ACCESS_ONCE(priv->tx_tail));
+	count = tx_count(tx_head, READ_ONCE(priv->tx_tail));
 	if (count == (TX_DESC_NUM - 1)) {
 		netif_stop_queue(ndev);
 		return NETDEV_TX_BUSY;
diff --git a/drivers/net/ethernet/hisilicon/hns/Makefile b/drivers/net/ethernet/hisilicon/hns/Makefile
index 6010c83e38d8..7aa623b9c82a 100644
--- a/drivers/net/ethernet/hisilicon/hns/Makefile
+++ b/drivers/net/ethernet/hisilicon/hns/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the HISILICON network device drivers.
 #
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index 36520634c96a..e77192683dba 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -2369,8 +2369,8 @@ static int hns_nic_dev_probe(struct platform_device *pdev)
 			priv->enet_ver = AE_VERSION_2;
 
 		ae_node = of_parse_phandle(dev->of_node, "ae-handle", 0);
-		if (IS_ERR_OR_NULL(ae_node)) {
-			ret = PTR_ERR(ae_node);
+		if (!ae_node) {
+			ret = -ENODEV;
 			dev_err(dev, "not find ae-handle\n");
 			goto out_read_prop_fail;
 		}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.c b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
index 59efbd605416..5bcb2238acb2 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.c
@@ -37,20 +37,15 @@ static bool hnae3_client_match(enum hnae3_client_type client_type,
 }
 
 static int hnae3_match_n_instantiate(struct hnae3_client *client,
-				     struct hnae3_ae_dev *ae_dev,
-				     bool is_reg, bool *matched)
+				     struct hnae3_ae_dev *ae_dev, bool is_reg)
 {
 	int ret;
 
-	*matched = false;
-
 	/* check if this client matches the type of ae_dev */
 	if (!(hnae3_client_match(client->type, ae_dev->dev_type) &&
 	      hnae_get_bit(ae_dev->flag, HNAE3_DEV_INITED_B))) {
 		return 0;
 	}
-	/* there is a match of client and dev */
-	*matched = true;
 
 	/* now, (un-)instantiate client by calling lower layer */
 	if (is_reg) {
@@ -69,7 +64,6 @@ int hnae3_register_client(struct hnae3_client *client)
 {
 	struct hnae3_client *client_tmp;
 	struct hnae3_ae_dev *ae_dev;
-	bool matched;
 	int ret = 0;
 
 	mutex_lock(&hnae3_common_lock);
@@ -86,7 +80,7 @@ int hnae3_register_client(struct hnae3_client *client)
 		/* if the client could not be initialized on current port, for
 		 * any error reasons, move on to next available port
 		 */
-		ret = hnae3_match_n_instantiate(client, ae_dev, true, &matched);
+		ret = hnae3_match_n_instantiate(client, ae_dev, true);
 		if (ret)
 			dev_err(&ae_dev->pdev->dev,
 				"match and instantiation failed for port\n");
@@ -102,12 +96,11 @@ EXPORT_SYMBOL(hnae3_register_client);
 void hnae3_unregister_client(struct hnae3_client *client)
 {
 	struct hnae3_ae_dev *ae_dev;
-	bool matched;
 
 	mutex_lock(&hnae3_common_lock);
 	/* un-initialize the client on every matched port */
 	list_for_each_entry(ae_dev, &hnae3_ae_dev_list, node) {
-		hnae3_match_n_instantiate(client, ae_dev, false, &matched);
+		hnae3_match_n_instantiate(client, ae_dev, false);
 	}
 
 	list_del(&client->node);
@@ -124,7 +117,6 @@ int hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo)
 	const struct pci_device_id *id;
 	struct hnae3_ae_dev *ae_dev;
 	struct hnae3_client *client;
-	bool matched;
 	int ret = 0;
 
 	mutex_lock(&hnae3_common_lock);
@@ -151,13 +143,10 @@ int hnae3_register_ae_algo(struct hnae3_ae_algo *ae_algo)
 		 * initialize the figure out client instance
 		 */
 		list_for_each_entry(client, &hnae3_client_list, node) {
-			ret = hnae3_match_n_instantiate(client, ae_dev, true,
-							&matched);
+			ret = hnae3_match_n_instantiate(client, ae_dev, true);
 			if (ret)
 				dev_err(&ae_dev->pdev->dev,
 					"match and instantiation failed\n");
-			if (matched)
-				break;
 		}
 	}
 
@@ -175,7 +164,6 @@ void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo)
 	const struct pci_device_id *id;
 	struct hnae3_ae_dev *ae_dev;
 	struct hnae3_client *client;
-	bool matched;
 
 	mutex_lock(&hnae3_common_lock);
 	/* Check if there are matched ae_dev */
@@ -187,12 +175,8 @@ void hnae3_unregister_ae_algo(struct hnae3_ae_algo *ae_algo)
 		/* check the client list for the match with this ae_dev type and
 		 * un-initialize the figure out client instance
 		 */
-		list_for_each_entry(client, &hnae3_client_list, node) {
-			hnae3_match_n_instantiate(client, ae_dev, false,
-						  &matched);
-			if (matched)
-				break;
-		}
+		list_for_each_entry(client, &hnae3_client_list, node)
+			hnae3_match_n_instantiate(client, ae_dev, false);
 
 		ae_algo->ops->uninit_ae_dev(ae_dev);
 		hnae_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
@@ -212,7 +196,6 @@ int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev)
 	const struct pci_device_id *id;
 	struct hnae3_ae_algo *ae_algo;
 	struct hnae3_client *client;
-	bool matched;
 	int ret = 0;
 
 	mutex_lock(&hnae3_common_lock);
@@ -246,13 +229,10 @@ int hnae3_register_ae_dev(struct hnae3_ae_dev *ae_dev)
 	 * initialize the figure out client instance
 	 */
 	list_for_each_entry(client, &hnae3_client_list, node) {
-		ret = hnae3_match_n_instantiate(client, ae_dev, true,
-						&matched);
+		ret = hnae3_match_n_instantiate(client, ae_dev, true);
 		if (ret)
 			dev_err(&ae_dev->pdev->dev,
 				"match and instantiation failed\n");
-		if (matched)
-			break;
 	}
 
 out_err:
@@ -270,7 +250,6 @@ void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev)
 	const struct pci_device_id *id;
 	struct hnae3_ae_algo *ae_algo;
 	struct hnae3_client *client;
-	bool matched;
 
 	mutex_lock(&hnae3_common_lock);
 	/* Check if there are matched ae_algo */
@@ -279,12 +258,8 @@ void hnae3_unregister_ae_dev(struct hnae3_ae_dev *ae_dev)
 		if (!id)
 			continue;
 
-		list_for_each_entry(client, &hnae3_client_list, node) {
-			hnae3_match_n_instantiate(client, ae_dev, false,
-						  &matched);
-			if (matched)
-				break;
-		}
+		list_for_each_entry(client, &hnae3_client_list, node)
+			hnae3_match_n_instantiate(client, ae_dev, false);
 
 		ae_algo->ops->uninit_ae_dev(ae_dev);
 		hnae_set_bit(ae_dev->flag, HNAE3_DEV_INITED_B, 0);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index b2f28ae81273..1a01cadfe5f3 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -49,7 +49,17 @@
 #define HNAE3_CLASS_NAME_SIZE 16
 
 #define HNAE3_DEV_INITED_B			0x0
-#define HNAE_DEV_SUPPORT_ROCE_B			0x1
+#define HNAE3_DEV_SUPPORT_ROCE_B		0x1
+#define HNAE3_DEV_SUPPORT_DCB_B			0x2
+
+#define HNAE3_DEV_SUPPORT_ROCE_DCB_BITS (BIT(HNAE3_DEV_SUPPORT_DCB_B) |\
+		BIT(HNAE3_DEV_SUPPORT_ROCE_B))
+
+#define hnae3_dev_roce_supported(hdev) \
+	hnae_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_ROCE_B)
+
+#define hnae3_dev_dcb_supported(hdev) \
+	hnae_get_bit(hdev->ae_dev->flag, HNAE3_DEV_SUPPORT_DCB_B)
 
 #define ring_ptr_move_fw(ring, p) \
 	((ring)->p = ((ring)->p + 1) % (ring)->desc_num)
@@ -366,12 +376,12 @@ struct hnae3_ae_algo {
 struct hnae3_tc_info {
 	u16	tqp_offset;	/* TQP offset from base TQP */
 	u16	tqp_count;	/* Total TQPs */
-	u8	up;		/* user priority */
 	u8	tc;		/* TC index */
 	bool	enable;		/* If this TC is enable or not */
 };
 
 #define HNAE3_MAX_TC		8
+#define HNAE3_MAX_USER_PRIO	8
 struct hnae3_knic_private_info {
 	struct net_device *netdev; /* Set by KNIC client when init instance */
 	u16 rss_size;		   /* Allocated RSS queues */
@@ -379,6 +389,7 @@ struct hnae3_knic_private_info {
 	u16 num_desc;
 
 	u8 num_tc;		   /* Total number of enabled TCs */
+	u8 prio_tc[HNAE3_MAX_USER_PRIO];  /* TC indexed by prio */
 	struct hnae3_tc_info tc_info[HNAE3_MAX_TC]; /* Idx of array is HW TC */
 
 	u16 num_tqps;		  /* total number of TQPs in this handle */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 91ae0135ee50..758cf3948131 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -238,7 +238,7 @@ struct hclge_tqp_map {
 	u8 rsv[18];
 };
 
-#define HCLGE_VECTOR_ELEMENTS_PER_CMD	11
+#define HCLGE_VECTOR_ELEMENTS_PER_CMD	10
 
 enum hclge_int_type {
 	HCLGE_INT_TX,
@@ -252,8 +252,12 @@ struct hclge_ctrl_vector_chain {
 #define HCLGE_INT_TYPE_S	0
 #define HCLGE_INT_TYPE_M	0x3
 #define HCLGE_TQP_ID_S		2
-#define HCLGE_TQP_ID_M		(0x3fff << HCLGE_TQP_ID_S)
+#define HCLGE_TQP_ID_M		(0x7ff << HCLGE_TQP_ID_S)
+#define HCLGE_INT_GL_IDX_S	13
+#define HCLGE_INT_GL_IDX_M	(0x3 << HCLGE_INT_GL_IDX_S)
 	__le16 tqp_type_and_id[HCLGE_VECTOR_ELEMENTS_PER_CMD];
+	u8 vfid;
+	u8 rsv;
 };
 
 #define HCLGE_TC_NUM		8
@@ -266,7 +270,8 @@ struct hclge_tx_buff_alloc {
 
 struct hclge_rx_priv_buff {
 	__le16 buf_num[HCLGE_TC_NUM];
-	u8 rsv[8];
+	__le16 shared_buf;
+	u8 rsv[6];
 };
 
 struct hclge_query_version {
@@ -684,6 +689,7 @@ struct hclge_reset_tqp_queue {
 #define HCLGE_DEFAULT_TX_BUF		0x4000	 /* 16k  bytes */
 #define HCLGE_TOTAL_PKT_BUF		0x108000 /* 1.03125M bytes */
 #define HCLGE_DEFAULT_DV		0xA000	 /* 40k byte */
+#define HCLGE_DEFAULT_NON_DCB_DV	0x7800	/* 30K byte */
 
 #define HCLGE_TYPE_CRQ			0
 #define HCLGE_TYPE_CSQ			1
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index bb45365fb817..c1cdbfd83bdb 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -46,17 +46,7 @@ static const struct pci_device_id ae_algo_pci_tbl[] = {
 	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA), 0},
 	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC), 0},
 	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), 0},
-	/* Required last entry */
-	{0, }
-};
-
-static const struct pci_device_id roce_pci_tbl[] = {
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), 0},
-	/* Required last entry */
+	/* required last entry */
 	{0, }
 };
 
@@ -894,7 +884,7 @@ static int hclge_query_pf_resource(struct hclge_dev *hdev)
 	hdev->num_tqps = __le16_to_cpu(req->tqp_num);
 	hdev->pkt_buf_size = __le16_to_cpu(req->buf_size) << HCLGE_BUF_UNIT_S;
 
-	if (hnae_get_bit(hdev->ae_dev->flag, HNAE_DEV_SUPPORT_ROCE_B)) {
+	if (hnae3_dev_roce_supported(hdev)) {
 		hdev->num_roce_msix =
 		hnae_get_field(__le16_to_cpu(req->pf_intr_vector_number),
 			       HCLGE_PF_VEC_NUM_M, HCLGE_PF_VEC_NUM_S);
@@ -1063,9 +1053,9 @@ static int hclge_configure(struct hclge_dev *hdev)
 	hdev->base_tqp_pid = 0;
 	hdev->rss_size_max = 1;
 	hdev->rx_buf_len = cfg.rx_buf_len;
-	for (i = 0; i < ETH_ALEN; i++)
-		hdev->hw.mac.mac_addr[i] = cfg.mac_addr[i];
+	ether_addr_copy(hdev->hw.mac.mac_addr, cfg.mac_addr);
 	hdev->hw.mac.media_type = cfg.media_type;
+	hdev->hw.mac.phy_addr = cfg.phy_addr;
 	hdev->num_desc = cfg.tqp_desc_num;
 	hdev->tm_info.num_pg = 1;
 	hdev->tm_info.num_tc = cfg.tc_num;
@@ -1454,7 +1444,11 @@ static bool  hclge_is_rx_buf_ok(struct hclge_dev *hdev, u32 rx_all)
 	tc_num = hclge_get_tc_num(hdev);
 	pfc_enable_num = hclge_get_pfc_enalbe_num(hdev);
 
-	shared_buf_min = 2 * hdev->mps + HCLGE_DEFAULT_DV;
+	if (hnae3_dev_dcb_supported(hdev))
+		shared_buf_min = 2 * hdev->mps + HCLGE_DEFAULT_DV;
+	else
+		shared_buf_min = 2 * hdev->mps + HCLGE_DEFAULT_NON_DCB_DV;
+
 	shared_buf_tc = pfc_enable_num * hdev->mps +
 			(tc_num - pfc_enable_num) * hdev->mps / 2 +
 			hdev->mps;
@@ -1495,6 +1489,16 @@ int hclge_rx_buffer_calc(struct hclge_dev *hdev, u32 tx_size)
 	struct hclge_priv_buf *priv;
 	int i;
 
+	/* When DCB is not supported, rx private
+	 * buffer is not allocated.
+	 */
+	if (!hnae3_dev_dcb_supported(hdev)) {
+		if (!hclge_is_rx_buf_ok(hdev, rx_all))
+			return -ENOMEM;
+
+		return 0;
+	}
+
 	/* step 1, try to alloc private buffer for all enabled tc */
 	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
 		priv = &hdev->priv_buf[i];
@@ -1510,6 +1514,11 @@ int hclge_rx_buffer_calc(struct hclge_dev *hdev, u32 tx_size)
 				priv->wl.high = 2 * hdev->mps;
 				priv->buf_size = priv->wl.high;
 			}
+		} else {
+			priv->enable = 0;
+			priv->wl.low = 0;
+			priv->wl.high = 0;
+			priv->buf_size = 0;
 		}
 	}
 
@@ -1522,8 +1531,15 @@ int hclge_rx_buffer_calc(struct hclge_dev *hdev, u32 tx_size)
 	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
 		priv = &hdev->priv_buf[i];
 
-		if (hdev->hw_tc_map & BIT(i))
-			priv->enable = 1;
+		priv->enable = 0;
+		priv->wl.low = 0;
+		priv->wl.high = 0;
+		priv->buf_size = 0;
+
+		if (!(hdev->hw_tc_map & BIT(i)))
+			continue;
+
+		priv->enable = 1;
 
 		if (hdev->tm_info.hw_pfc_map & BIT(i)) {
 			priv->wl.low = 128;
@@ -1616,6 +1632,10 @@ static int hclge_rx_priv_buf_alloc(struct hclge_dev *hdev)
 			cpu_to_le16(true << HCLGE_TC0_PRI_BUF_EN_B);
 	}
 
+	req->shared_buf =
+		cpu_to_le16((hdev->s_buf.buf_size >> HCLGE_BUF_UNIT_S) |
+			    (1 << HCLGE_TC0_PRI_BUF_EN_B));
+
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
@@ -1782,18 +1802,22 @@ int hclge_buffer_alloc(struct hclge_dev *hdev)
 		return ret;
 	}
 
-	ret = hclge_rx_priv_wl_config(hdev);
-	if (ret) {
-		dev_err(&hdev->pdev->dev,
-			"could not configure rx private waterline %d\n", ret);
-		return ret;
-	}
+	if (hnae3_dev_dcb_supported(hdev)) {
+		ret = hclge_rx_priv_wl_config(hdev);
+		if (ret) {
+			dev_err(&hdev->pdev->dev,
+				"could not configure rx private waterline %d\n",
+				ret);
+			return ret;
+		}
 
-	ret = hclge_common_thrd_config(hdev);
-	if (ret) {
-		dev_err(&hdev->pdev->dev,
-			"could not configure common threshold %d\n", ret);
-		return ret;
+		ret = hclge_common_thrd_config(hdev);
+		if (ret) {
+			dev_err(&hdev->pdev->dev,
+				"could not configure common threshold %d\n",
+				ret);
+			return ret;
+		}
 	}
 
 	ret = hclge_common_wl_config(hdev);
@@ -2582,6 +2606,7 @@ static int hclge_rss_init_hw(struct hclge_dev *hdev)
 	u16 tc_valid[HCLGE_MAX_TC_NUM];
 	u16 tc_size[HCLGE_MAX_TC_NUM];
 	u32 *rss_indir = NULL;
+	u16 rss_size = 0, roundup_size;
 	const u8 *key;
 	int i, ret, j;
 
@@ -2596,7 +2621,13 @@ static int hclge_rss_init_hw(struct hclge_dev *hdev)
 	for (j = 0; j < hdev->num_vmdq_vport + 1; j++) {
 		for (i = 0; i < HCLGE_RSS_IND_TBL_SIZE; i++) {
 			vport[j].rss_indirection_tbl[i] =
-				i % hdev->rss_size_max;
+				i % vport[j].alloc_rss_size;
+
+			/* vport 0 is for PF */
+			if (j != 0)
+				continue;
+
+			rss_size = vport[j].alloc_rss_size;
 			rss_indir[i] = vport[j].rss_indirection_tbl[i];
 		}
 	}
@@ -2613,42 +2644,32 @@ static int hclge_rss_init_hw(struct hclge_dev *hdev)
 	if (ret)
 		goto err;
 
+	/* Each TC have the same queue size, and tc_size set to hardware is
+	 * the log2 of roundup power of two of rss_size, the acutal queue
+	 * size is limited by indirection table.
+	 */
+	if (rss_size > HCLGE_RSS_TC_SIZE_7 || rss_size == 0) {
+		dev_err(&hdev->pdev->dev,
+			"Configure rss tc size failed, invalid TC_SIZE = %d\n",
+			rss_size);
+		ret = -EINVAL;
+		goto err;
+	}
+
+	roundup_size = roundup_pow_of_two(rss_size);
+	roundup_size = ilog2(roundup_size);
+
 	for (i = 0; i < HCLGE_MAX_TC_NUM; i++) {
-		if (hdev->hw_tc_map & BIT(i))
-			tc_valid[i] = 1;
-		else
-			tc_valid[i] = 0;
+		tc_valid[i] = 0;
 
-		switch (hdev->rss_size_max) {
-		case HCLGE_RSS_TC_SIZE_0:
-			tc_size[i] = 0;
-			break;
-		case HCLGE_RSS_TC_SIZE_1:
-			tc_size[i] = 1;
-			break;
-		case HCLGE_RSS_TC_SIZE_2:
-			tc_size[i] = 2;
-			break;
-		case HCLGE_RSS_TC_SIZE_3:
-			tc_size[i] = 3;
-			break;
-		case HCLGE_RSS_TC_SIZE_4:
-			tc_size[i] = 4;
-			break;
-		case HCLGE_RSS_TC_SIZE_5:
-			tc_size[i] = 5;
-			break;
-		case HCLGE_RSS_TC_SIZE_6:
-			tc_size[i] = 6;
-			break;
-		case HCLGE_RSS_TC_SIZE_7:
-			tc_size[i] = 7;
-			break;
-		default:
-			break;
-		}
-		tc_offset[i] = hdev->rss_size_max * i;
+		if (!(hdev->hw_tc_map & BIT(i)))
+			continue;
+
+		tc_valid[i] = 1;
+		tc_size[i] = roundup_size;
+		tc_offset[i] = rss_size * i;
 	}
+
 	ret = hclge_set_rss_tc_mode(hdev, tc_valid, tc_size, tc_offset);
 
 err:
@@ -2679,7 +2700,11 @@ int hclge_map_vport_ring_to_vector(struct hclge_vport *vport, int vector_id,
 			       hnae_get_bit(node->flag, HNAE3_RING_TYPE_B));
 		hnae_set_field(req->tqp_type_and_id[i], HCLGE_TQP_ID_M,
 			       HCLGE_TQP_ID_S,	node->tqp_index);
+		hnae_set_field(req->tqp_type_and_id[i], HCLGE_INT_GL_IDX_M,
+			       HCLGE_INT_GL_IDX_S,
+			       hnae_get_bit(node->flag, HNAE3_RING_TYPE_B));
 		req->tqp_type_and_id[i] = cpu_to_le16(req->tqp_type_and_id[i]);
+		req->vfid = vport->vport_id;
 
 		if (++i >= HCLGE_VECTOR_ELEMENTS_PER_CMD) {
 			req->int_cause_num = HCLGE_VECTOR_ELEMENTS_PER_CMD;
@@ -2763,8 +2788,12 @@ static int hclge_unmap_ring_from_vector(
 			       hnae_get_bit(node->flag, HNAE3_RING_TYPE_B));
 		hnae_set_field(req->tqp_type_and_id[i], HCLGE_TQP_ID_M,
 			       HCLGE_TQP_ID_S,	node->tqp_index);
+		hnae_set_field(req->tqp_type_and_id[i], HCLGE_INT_GL_IDX_M,
+			       HCLGE_INT_GL_IDX_S,
+			       hnae_get_bit(node->flag, HNAE3_RING_TYPE_B));
 
 		req->tqp_type_and_id[i] = cpu_to_le16(req->tqp_type_and_id[i]);
+		req->vfid = vport->vport_id;
 
 		if (++i >= HCLGE_VECTOR_ELEMENTS_PER_CMD) {
 			req->int_cause_num = HCLGE_VECTOR_ELEMENTS_PER_CMD;
@@ -2778,7 +2807,7 @@ static int hclge_unmap_ring_from_vector(
 			}
 			i = 0;
 			hclge_cmd_setup_basic_desc(&desc,
-						   HCLGE_OPC_ADD_RING_TO_VECTOR,
+						   HCLGE_OPC_DEL_RING_TO_VECTOR,
 						   false);
 			req->int_vector_id = vector_id;
 		}
@@ -3665,6 +3694,7 @@ static int hclge_init_vlan_config(struct hclge_dev *hdev)
 {
 #define HCLGE_VLAN_TYPE_VF_TABLE   0
 #define HCLGE_VLAN_TYPE_PORT_TABLE 1
+	struct hnae3_handle *handle;
 	int ret;
 
 	ret = hclge_set_vlan_filter_ctrl(hdev, HCLGE_VLAN_TYPE_VF_TABLE,
@@ -3674,8 +3704,11 @@ static int hclge_init_vlan_config(struct hclge_dev *hdev)
 
 	ret = hclge_set_vlan_filter_ctrl(hdev, HCLGE_VLAN_TYPE_PORT_TABLE,
 					 true);
+	if (ret)
+		return ret;
 
-	return ret;
+	handle = &hdev->vport[0].nic;
+	return hclge_set_port_vlan_filter(handle, htons(ETH_P_8021Q), 0, false);
 }
 
 static int hclge_set_mtu(struct hnae3_handle *handle, int new_mtu)
@@ -3920,8 +3953,7 @@ static int hclge_init_client_instance(struct hnae3_client *client,
 				goto err;
 
 			if (hdev->roce_client &&
-			    hnae_get_bit(hdev->ae_dev->flag,
-					 HNAE_DEV_SUPPORT_ROCE_B)) {
+			    hnae3_dev_roce_supported(hdev)) {
 				struct hnae3_client *rc = hdev->roce_client;
 
 				ret = hclge_init_roce_base_info(vport);
@@ -3944,8 +3976,7 @@ static int hclge_init_client_instance(struct hnae3_client *client,
 
 			break;
 		case HNAE3_CLIENT_ROCE:
-			if (hnae_get_bit(hdev->ae_dev->flag,
-					 HNAE_DEV_SUPPORT_ROCE_B)) {
+			if (hnae3_dev_roce_supported(hdev)) {
 				hdev->roce_client = client;
 				vport->roce.client = client;
 			}
@@ -4057,7 +4088,6 @@ static void hclge_pci_uninit(struct hclge_dev *hdev)
 static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 {
 	struct pci_dev *pdev = ae_dev->pdev;
-	const struct pci_device_id *id;
 	struct hclge_dev *hdev;
 	int ret;
 
@@ -4072,10 +4102,6 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 	hdev->ae_dev = ae_dev;
 	ae_dev->priv = hdev;
 
-	id = pci_match_id(roce_pci_tbl, ae_dev->pdev);
-	if (id)
-		hnae_set_bit(ae_dev->flag, HNAE_DEV_SUPPORT_ROCE_B, 1);
-
 	ret = hclge_pci_init(hdev);
 	if (ret) {
 		dev_err(&pdev->dev, "PCI init failed\n");
@@ -4138,12 +4164,6 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 		return ret;
 	}
 
-	ret = hclge_rss_init_hw(hdev);
-	if (ret) {
-		dev_err(&pdev->dev, "Rss init fail, ret =%d\n", ret);
-		return  ret;
-	}
-
 	ret = hclge_init_vlan_config(hdev);
 	if (ret) {
 		dev_err(&pdev->dev, "VLAN init fail, ret =%d\n", ret);
@@ -4156,6 +4176,12 @@ static int hclge_init_ae_dev(struct hnae3_ae_dev *ae_dev)
 		return ret;
 	}
 
+	ret = hclge_rss_init_hw(hdev);
+	if (ret) {
+		dev_err(&pdev->dev, "Rss init fail, ret =%d\n", ret);
+		return ret;
+	}
+
 	setup_timer(&hdev->service_timer, hclge_service_timer,
 		    (unsigned long)hdev);
 	INIT_WORK(&hdev->service_task, hclge_service_task);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index edb10ad075eb..9fcfd9395424 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -176,7 +176,6 @@ struct hclge_pg_info {
 struct hclge_tc_info {
 	u8 tc_id;
 	u8 tc_sch_mode;		/* 0: sp; 1: dwrr */
-	u8 up;
 	u8 pgid;
 	u32 bw_limit;
 };
@@ -197,6 +196,7 @@ struct hclge_tm_info {
 	u8 num_tc;
 	u8 num_pg;      /* It must be 1 if vNET-Base schd */
 	u8 pg_dwrr[HCLGE_PG_NUM];
+	u8 prio_tc[HNAE3_MAX_USER_PRIO];
 	struct hclge_pg_info pg_info[HCLGE_PG_NUM];
 	struct hclge_tc_info tc_info[HNAE3_MAX_TC];
 	enum hclge_fc_mode fc_mode;
@@ -477,6 +477,7 @@ struct hclge_vport {
 	u8  rss_hash_key[HCLGE_RSS_KEY_SIZE]; /* User configured hash keys */
 	/* User configured lookup table entries */
 	u8  rss_indirection_tbl[HCLGE_RSS_IND_TBL_SIZE];
+	u16 alloc_rss_size;
 
 	u16 qs_offset;
 	u16 bw_limit;		/* VSI BW Limit (0 = disabled) */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 1c577d268f00..73a75d7cc551 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -128,9 +128,7 @@ static int hclge_fill_pri_array(struct hclge_dev *hdev, u8 *pri, u8 pri_id)
 {
 	u8 tc;
 
-	for (tc = 0; tc < hdev->tm_info.num_tc; tc++)
-		if (hdev->tm_info.tc_info[tc].up == pri_id)
-			break;
+	tc = hdev->tm_info.prio_tc[pri_id];
 
 	if (tc >= hdev->tm_info.num_tc)
 		return -EINVAL;
@@ -158,7 +156,7 @@ static int hclge_up_to_tc_map(struct hclge_dev *hdev)
 
 	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_PRI_TO_TC_MAPPING, false);
 
-	for (pri_id = 0; pri_id < hdev->tm_info.num_tc; pri_id++) {
+	for (pri_id = 0; pri_id < HNAE3_MAX_USER_PRIO; pri_id++) {
 		ret = hclge_fill_pri_array(hdev, pri, pri_id);
 		if (ret)
 			return ret;
@@ -280,11 +278,11 @@ static int hclge_tm_pg_shapping_cfg(struct hclge_dev *hdev,
 
 	shap_cfg_cmd->pg_id = pg_id;
 
-	hclge_tm_set_feild(shap_cfg_cmd->pg_shapping_para, IR_B, ir_b);
-	hclge_tm_set_feild(shap_cfg_cmd->pg_shapping_para, IR_U, ir_u);
-	hclge_tm_set_feild(shap_cfg_cmd->pg_shapping_para, IR_S, ir_s);
-	hclge_tm_set_feild(shap_cfg_cmd->pg_shapping_para, BS_B, bs_b);
-	hclge_tm_set_feild(shap_cfg_cmd->pg_shapping_para, BS_S, bs_s);
+	hclge_tm_set_field(shap_cfg_cmd->pg_shapping_para, IR_B, ir_b);
+	hclge_tm_set_field(shap_cfg_cmd->pg_shapping_para, IR_U, ir_u);
+	hclge_tm_set_field(shap_cfg_cmd->pg_shapping_para, IR_S, ir_s);
+	hclge_tm_set_field(shap_cfg_cmd->pg_shapping_para, BS_B, bs_b);
+	hclge_tm_set_field(shap_cfg_cmd->pg_shapping_para, BS_S, bs_s);
 
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
@@ -307,11 +305,11 @@ static int hclge_tm_pri_shapping_cfg(struct hclge_dev *hdev,
 
 	shap_cfg_cmd->pri_id = pri_id;
 
-	hclge_tm_set_feild(shap_cfg_cmd->pri_shapping_para, IR_B, ir_b);
-	hclge_tm_set_feild(shap_cfg_cmd->pri_shapping_para, IR_U, ir_u);
-	hclge_tm_set_feild(shap_cfg_cmd->pri_shapping_para, IR_S, ir_s);
-	hclge_tm_set_feild(shap_cfg_cmd->pri_shapping_para, BS_B, bs_b);
-	hclge_tm_set_feild(shap_cfg_cmd->pri_shapping_para, BS_S, bs_s);
+	hclge_tm_set_field(shap_cfg_cmd->pri_shapping_para, IR_B, ir_b);
+	hclge_tm_set_field(shap_cfg_cmd->pri_shapping_para, IR_U, ir_u);
+	hclge_tm_set_field(shap_cfg_cmd->pri_shapping_para, IR_S, ir_s);
+	hclge_tm_set_field(shap_cfg_cmd->pri_shapping_para, BS_B, bs_b);
+	hclge_tm_set_field(shap_cfg_cmd->pri_shapping_para, BS_S, bs_s);
 
 	return hclge_cmd_send(&hdev->hw, &desc, 1);
 }
@@ -397,6 +395,7 @@ static void hclge_tm_vport_tc_info_update(struct hclge_vport *vport)
 			kinfo->num_tqps / kinfo->num_tc);
 	vport->qs_offset = hdev->tm_info.num_tc * vport->vport_id;
 	vport->dwrr = 100;  /* 100 percent as init */
+	vport->alloc_rss_size = kinfo->rss_size;
 
 	for (i = 0; i < kinfo->num_tc; i++) {
 		if (hdev->hw_tc_map & BIT(i)) {
@@ -404,16 +403,17 @@ static void hclge_tm_vport_tc_info_update(struct hclge_vport *vport)
 			kinfo->tc_info[i].tqp_offset = i * kinfo->rss_size;
 			kinfo->tc_info[i].tqp_count = kinfo->rss_size;
 			kinfo->tc_info[i].tc = i;
-			kinfo->tc_info[i].up = hdev->tm_info.tc_info[i].up;
 		} else {
 			/* Set to default queue if TC is disable */
 			kinfo->tc_info[i].enable = false;
 			kinfo->tc_info[i].tqp_offset = 0;
 			kinfo->tc_info[i].tqp_count = 1;
 			kinfo->tc_info[i].tc = 0;
-			kinfo->tc_info[i].up = 0;
 		}
 	}
+
+	memcpy(kinfo->prio_tc, hdev->tm_info.prio_tc,
+	       FIELD_SIZEOF(struct hnae3_knic_private_info, prio_tc));
 }
 
 static void hclge_tm_vport_info_update(struct hclge_dev *hdev)
@@ -435,12 +435,15 @@ static void hclge_tm_tc_info_init(struct hclge_dev *hdev)
 	for (i = 0; i < hdev->tm_info.num_tc; i++) {
 		hdev->tm_info.tc_info[i].tc_id = i;
 		hdev->tm_info.tc_info[i].tc_sch_mode = HCLGE_SCH_MODE_DWRR;
-		hdev->tm_info.tc_info[i].up = i;
 		hdev->tm_info.tc_info[i].pgid = 0;
 		hdev->tm_info.tc_info[i].bw_limit =
 			hdev->tm_info.pg_info[0].bw_limit;
 	}
 
+	for (i = 0; i < HNAE3_MAX_USER_PRIO; i++)
+		hdev->tm_info.prio_tc[i] =
+			(i >= hdev->tm_info.num_tc) ? 0 : i;
+
 	hdev->flag &= ~HCLGE_FLAG_DCB_ENABLE;
 }
 
@@ -976,6 +979,10 @@ int hclge_pause_setup_hw(struct hclge_dev *hdev)
 	if (ret)
 		return ret;
 
+	/* Only DCB-supported dev supports qset back pressure setting */
+	if (!hnae3_dev_dcb_supported(hdev))
+		return 0;
+
 	for (i = 0; i < hdev->tm_info.num_tc; i++) {
 		ret = hclge_tm_qs_bp_cfg(hdev, i);
 		if (ret)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
index 7e67337dfaf2..85158b0d73fe 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
@@ -94,10 +94,10 @@ struct hclge_bp_to_qs_map_cmd {
 	u32 rsvd1;
 };
 
-#define hclge_tm_set_feild(dest, string, val) \
+#define hclge_tm_set_field(dest, string, val) \
 			hnae_set_field((dest), (HCLGE_TM_SHAP_##string##_MSK), \
 				       (HCLGE_TM_SHAP_##string##_LSH), val)
-#define hclge_tm_get_feild(src, string) \
+#define hclge_tm_get_field(src, string) \
 			hnae_get_field((src), (HCLGE_TM_SHAP_##string##_MSK), \
 				       (HCLGE_TM_SHAP_##string##_LSH))
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
index 1c3e29447891..35369e1c8036 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hns3_enet.c
@@ -41,11 +41,16 @@ static struct hnae3_client client;
 static const struct pci_device_id hns3_pci_tbl[] = {
 	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_GE), 0},
 	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC), 0},
-	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), 0},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA),
+	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC),
+	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA),
+	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC),
+	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
+	{PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC),
+	 HNAE3_DEV_SUPPORT_ROCE_DCB_BITS},
 	/* required last entry */
 	{0, }
 };
@@ -1348,6 +1353,7 @@ static int hns3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	ae_dev->pdev = pdev;
+	ae_dev->flag = ent->driver_data;
 	ae_dev->dev_type = HNAE3_DEV_KNIC;
 	pci_set_drvdata(pdev, ae_dev);
 
@@ -2705,10 +2711,11 @@ static void hns3_init_mac_addr(struct net_device *netdev)
 		eth_hw_addr_random(netdev);
 		dev_warn(priv->dev, "using random MAC address %pM\n",
 			 netdev->dev_addr);
-		/* Also copy this new MAC address into hdev */
-		if (h->ae_algo->ops->set_mac_addr)
-			h->ae_algo->ops->set_mac_addr(h, netdev->dev_addr);
 	}
+
+	if (h->ae_algo->ops->set_mac_addr)
+		h->ae_algo->ops->set_mac_addr(h, netdev->dev_addr);
+
 }
 
 static void hns3_nic_set_priv_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/i825xx/Makefile b/drivers/net/ethernet/i825xx/Makefile
index 8c8dcd29c40d..422a19a5d94f 100644
--- a/drivers/net/ethernet/i825xx/Makefile
+++ b/drivers/net/ethernet/i825xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Intel 82586/82593/82596 chipset device drivers.
 #
diff --git a/drivers/net/ethernet/ibm/emac/Makefile b/drivers/net/ethernet/ibm/emac/Makefile
index 98768ba0955a..ddf1ce3c8cca 100644
--- a/drivers/net/ethernet/ibm/emac/Makefile
+++ b/drivers/net/ethernet/ibm/emac/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PowerPC 4xx on-chip ethernet driver
 #
diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c
index 2c74baa2398a..fff09dcf9e34 100644
--- a/drivers/net/ethernet/ibm/emac/mal.c
+++ b/drivers/net/ethernet/ibm/emac/mal.c
@@ -402,7 +402,7 @@ static int mal_poll(struct napi_struct *napi, int budget)
 	unsigned long flags;
 
 	MAL_DBG2(mal, "poll(%d)" NL, budget);
- again:
+
 	/* Process TX skbs */
 	list_for_each(l, &mal->poll_list) {
 		struct mal_commac *mc =
@@ -451,7 +451,6 @@ static int mal_poll(struct napi_struct *napi, int budget)
 			spin_lock_irqsave(&mal->lock, flags);
 			mal_disable_eob_irq(mal);
 			spin_unlock_irqrestore(&mal->lock, flags);
-			goto again;
 		}
 		mc->ops->poll_tx(mc->dev);
 	}
diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index cb8182f4fdfa..c66abd476023 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -1093,11 +1093,12 @@ static int build_hdr_data(u8 hdr_field, struct sk_buff *skb,
  * places them in a descriptor array, scrq_arr
  */
 
-static void create_hdr_descs(u8 hdr_field, u8 *hdr_data, int len, int *hdr_len,
-			     union sub_crq *scrq_arr)
+static int create_hdr_descs(u8 hdr_field, u8 *hdr_data, int len, int *hdr_len,
+			    union sub_crq *scrq_arr)
 {
 	union sub_crq hdr_desc;
 	int tmp_len = len;
+	int num_descs = 0;
 	u8 *data, *cur;
 	int tmp;
 
@@ -1126,7 +1127,10 @@ static void create_hdr_descs(u8 hdr_field, u8 *hdr_data, int len, int *hdr_len,
 		tmp_len -= tmp;
 		*scrq_arr = hdr_desc;
 		scrq_arr++;
+		num_descs++;
 	}
+
+	return num_descs;
 }
 
 /**
@@ -1144,16 +1148,12 @@ static void build_hdr_descs_arr(struct ibmvnic_tx_buff *txbuff,
 				int *num_entries, u8 hdr_field)
 {
 	int hdr_len[3] = {0, 0, 0};
-	int tot_len, len;
+	int tot_len;
 	u8 *hdr_data = txbuff->hdr_data;
 
 	tot_len = build_hdr_data(hdr_field, txbuff->skb, hdr_len,
 				 txbuff->hdr_data);
-	len = tot_len;
-	len -= 24;
-	if (len > 0)
-		num_entries += len % 29 ? len / 29 + 1 : len / 29;
-	create_hdr_descs(hdr_field, hdr_data, tot_len, hdr_len,
+	*num_entries += create_hdr_descs(hdr_field, hdr_data, tot_len, hdr_len,
 			 txbuff->indir_arr + 1);
 }
 
diff --git a/drivers/net/ethernet/intel/Makefile b/drivers/net/ethernet/intel/Makefile
index 5ea764d85ec3..90af7757a885 100644
--- a/drivers/net/ethernet/intel/Makefile
+++ b/drivers/net/ethernet/intel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Intel network device drivers.
 #
diff --git a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
index ec8aa4562cc9..3b3983a1ffbb 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_ethtool.c
@@ -1824,11 +1824,12 @@ static void e1000_get_ethtool_stats(struct net_device *netdev,
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	int i;
-	char *p = NULL;
 	const struct e1000_stats *stat = e1000_gstrings_stats;
 
 	e1000_update_stats(adapter);
-	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++) {
+	for (i = 0; i < E1000_GLOBAL_STATS_LEN; i++, stat++) {
+		char *p;
+
 		switch (stat->type) {
 		case NETDEV_STATS:
 			p = (char *)netdev + stat->stat_offset;
@@ -1839,15 +1840,13 @@ static void e1000_get_ethtool_stats(struct net_device *netdev,
 		default:
 			WARN_ONCE(1, "Invalid E1000 stat type: %u index %d\n",
 				  stat->type, i);
-			break;
+			continue;
 		}
 
 		if (stat->sizeof_stat == sizeof(u64))
 			data[i] = *(u64 *)p;
 		else
 			data[i] = *(u32 *)p;
-
-		stat++;
 	}
 /* BUG_ON(i != E1000_STATS_LEN); */
 }
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 98375e1e1185..1982f7917a8d 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -520,8 +520,6 @@ void e1000_down(struct e1000_adapter *adapter)
 	struct net_device *netdev = adapter->netdev;
 	u32 rctl, tctl;
 
-	netif_carrier_off(netdev);
-
 	/* disable receives in the hardware */
 	rctl = er32(RCTL);
 	ew32(RCTL, rctl & ~E1000_RCTL_EN);
@@ -537,6 +535,15 @@ void e1000_down(struct e1000_adapter *adapter)
 	E1000_WRITE_FLUSH();
 	msleep(10);
 
+	/* Set the carrier off after transmits have been disabled in the
+	 * hardware, to avoid race conditions with e1000_watchdog() (which
+	 * may be running concurrently to us, checking for the carrier
+	 * bit to decide whether it should enable transmits again). Such
+	 * a race condition would result into transmission being disabled
+	 * in the hardware until the next IFF_DOWN+IFF_UP cycle.
+	 */
+	netif_carrier_off(netdev);
+
 	napi_disable(&adapter->napi);
 
 	e1000_irq_disable(adapter);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 8f326f87a815..2cb9539c931e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -264,7 +264,7 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 		 vsi->rx_buf_failed, vsi->rx_page_failed);
 	rcu_read_lock();
 	for (i = 0; i < vsi->num_queue_pairs; i++) {
-		struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
+		struct i40e_ring *rx_ring = READ_ONCE(vsi->rx_rings[i]);
 
 		if (!rx_ring)
 			continue;
@@ -320,7 +320,7 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 			 ITR_IS_DYNAMIC(rx_ring->rx_itr_setting) ? "dynamic" : "fixed");
 	}
 	for (i = 0; i < vsi->num_queue_pairs; i++) {
-		struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
+		struct i40e_ring *tx_ring = READ_ONCE(vsi->tx_rings[i]);
 
 		if (!tx_ring)
 			continue;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 05e89864f781..e9e04a485e0a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -1570,7 +1570,7 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 	}
 	rcu_read_lock();
 	for (j = 0; j < vsi->num_queue_pairs; j++) {
-		tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
+		tx_ring = READ_ONCE(vsi->tx_rings[j]);
 
 		if (!tx_ring)
 			continue;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 6498da8806cb..de1fcac7834d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -455,7 +455,7 @@ static void i40e_get_netdev_stats_struct(struct net_device *netdev,
 		u64 bytes, packets;
 		unsigned int start;
 
-		tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
+		tx_ring = READ_ONCE(vsi->tx_rings[i]);
 		if (!tx_ring)
 			continue;
 		i40e_get_netdev_stats_struct_tx(tx_ring, stats);
@@ -791,7 +791,7 @@ static void i40e_update_vsi_stats(struct i40e_vsi *vsi)
 	rcu_read_lock();
 	for (q = 0; q < vsi->num_queue_pairs; q++) {
 		/* locate Tx ring */
-		p = ACCESS_ONCE(vsi->tx_rings[q]);
+		p = READ_ONCE(vsi->tx_rings[q]);
 
 		do {
 			start = u64_stats_fetch_begin_irq(&p->syncp);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
index 57505b1df98d..d591b3e6bd7c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c
@@ -298,7 +298,7 @@ static i40e_status i40e_read_nvm_word_aq(struct i40e_hw *hw, u16 offset,
 }
 
 /**
- * __i40e_read_nvm_word - Reads nvm word, assumes called does the locking
+ * __i40e_read_nvm_word - Reads nvm word, assumes caller does the locking
  * @hw: pointer to the HW structure
  * @offset: offset of the Shadow RAM word to read (0x000000 - 0x001FFF)
  * @data: word read from the Shadow RAM
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ptp.c b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
index d8456c381c99..97381238eb7c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ptp.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ptp.c
@@ -130,7 +130,7 @@ static int i40e_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb)
 	}
 
 	smp_mb(); /* Force any pending update before accessing. */
-	adj = ACCESS_ONCE(pf->ptp_base_adj);
+	adj = READ_ONCE(pf->ptp_base_adj);
 
 	freq = adj;
 	freq *= ppb;
@@ -499,7 +499,7 @@ void i40e_ptp_set_increment(struct i40e_pf *pf)
 	wr32(hw, I40E_PRTTSYN_INC_H, incval >> 32);
 
 	/* Update the base adjustement value. */
-	ACCESS_ONCE(pf->ptp_base_adj) = incval;
+	WRITE_ONCE(pf->ptp_base_adj, incval);
 	smp_mb(); /* Force the above update. */
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 1519dfb851d0..120c68f78951 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1038,6 +1038,32 @@ reset_latency:
 }
 
 /**
+ * i40e_reuse_rx_page - page flip buffer and store it back on the ring
+ * @rx_ring: rx descriptor ring to store buffers on
+ * @old_buff: donor buffer to have page reused
+ *
+ * Synchronizes page for reuse by the adapter
+ **/
+static void i40e_reuse_rx_page(struct i40e_ring *rx_ring,
+			       struct i40e_rx_buffer *old_buff)
+{
+	struct i40e_rx_buffer *new_buff;
+	u16 nta = rx_ring->next_to_alloc;
+
+	new_buff = &rx_ring->rx_bi[nta];
+
+	/* update, and store next to alloc */
+	nta++;
+	rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0;
+
+	/* transfer page from old buffer to new buffer */
+	new_buff->dma		= old_buff->dma;
+	new_buff->page		= old_buff->page;
+	new_buff->page_offset	= old_buff->page_offset;
+	new_buff->pagecnt_bias	= old_buff->pagecnt_bias;
+}
+
+/**
  * i40e_rx_is_programming_status - check for programming status descriptor
  * @qw: qword representing status_error_len in CPU ordering
  *
@@ -1071,15 +1097,24 @@ static void i40e_clean_programming_status(struct i40e_ring *rx_ring,
 					  union i40e_rx_desc *rx_desc,
 					  u64 qw)
 {
-	u32 ntc = rx_ring->next_to_clean + 1;
+	struct i40e_rx_buffer *rx_buffer;
+	u32 ntc = rx_ring->next_to_clean;
 	u8 id;
 
 	/* fetch, update, and store next to clean */
+	rx_buffer = &rx_ring->rx_bi[ntc++];
 	ntc = (ntc < rx_ring->count) ? ntc : 0;
 	rx_ring->next_to_clean = ntc;
 
 	prefetch(I40E_RX_DESC(rx_ring, ntc));
 
+	/* place unused page back on the ring */
+	i40e_reuse_rx_page(rx_ring, rx_buffer);
+	rx_ring->rx_stats.page_reuse_count++;
+
+	/* clear contents of buffer_info */
+	rx_buffer->page = NULL;
+
 	id = (qw & I40E_RX_PROG_STATUS_DESC_QW1_PROGID_MASK) >>
 		  I40E_RX_PROG_STATUS_DESC_QW1_PROGID_SHIFT;
 
@@ -1639,32 +1674,6 @@ static bool i40e_cleanup_headers(struct i40e_ring *rx_ring, struct sk_buff *skb,
 }
 
 /**
- * i40e_reuse_rx_page - page flip buffer and store it back on the ring
- * @rx_ring: rx descriptor ring to store buffers on
- * @old_buff: donor buffer to have page reused
- *
- * Synchronizes page for reuse by the adapter
- **/
-static void i40e_reuse_rx_page(struct i40e_ring *rx_ring,
-			       struct i40e_rx_buffer *old_buff)
-{
-	struct i40e_rx_buffer *new_buff;
-	u16 nta = rx_ring->next_to_alloc;
-
-	new_buff = &rx_ring->rx_bi[nta];
-
-	/* update, and store next to alloc */
-	nta++;
-	rx_ring->next_to_alloc = (nta < rx_ring->count) ? nta : 0;
-
-	/* transfer page from old buffer to new buffer */
-	new_buff->dma		= old_buff->dma;
-	new_buff->page		= old_buff->page;
-	new_buff->page_offset	= old_buff->page_offset;
-	new_buff->pagecnt_bias	= old_buff->pagecnt_bias;
-}
-
-/**
  * i40e_page_is_reusable - check if any reuse is possible
  * @page: page struct to check
  *
@@ -2093,6 +2102,7 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
 
 		if (unlikely(i40e_rx_is_programming_status(qword))) {
 			i40e_clean_programming_status(rx_ring, rx_desc, qword);
+			cleaned_count++;
 			continue;
 		}
 		size = (qword & I40E_RXD_QW1_LENGTH_PBUF_MASK) >>
@@ -2260,7 +2270,7 @@ static inline void i40e_update_enable_itr(struct i40e_vsi *vsi,
 		goto enable_int;
 	}
 
-	if (ITR_IS_DYNAMIC(tx_itr_setting)) {
+	if (ITR_IS_DYNAMIC(rx_itr_setting)) {
 		rx = i40e_set_new_dynamic_itr(&q_vector->rx);
 		rxval = i40e_buildreg_itr(I40E_RX_ITR, q_vector->rx.itr);
 	}
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_client.c b/drivers/net/ethernet/intel/i40evf/i40evf_client.c
index 93cf5fd17d91..d8131139565e 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_client.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/list.h>
 #include <linux/errno.h>
 
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_client.h b/drivers/net/ethernet/intel/i40evf/i40evf_client.h
index 7d283c7506a5..15a10da5bd4a 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_client.h
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _I40E_CLIENT_H_
 #define _I40E_CLIENT_H_
 
diff --git a/drivers/net/ethernet/intel/igb/e1000_regs.h b/drivers/net/ethernet/intel/igb/e1000_regs.h
index 58adbf234e07..31a3f09df9f7 100644
--- a/drivers/net/ethernet/intel/igb/e1000_regs.h
+++ b/drivers/net/ethernet/intel/igb/e1000_regs.h
@@ -375,7 +375,7 @@ u32 igb_rd32(struct e1000_hw *hw, u32 reg);
 /* write operations, indexed using DWORDS */
 #define wr32(reg, val) \
 do { \
-	u8 __iomem *hw_addr = ACCESS_ONCE((hw)->hw_addr); \
+	u8 __iomem *hw_addr = READ_ONCE((hw)->hw_addr); \
 	if (!E1000_REMOVED(hw_addr)) \
 		writel((val), &hw_addr[(reg)]); \
 } while (0)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index fd4a46b03cc8..18b6c25d4705 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -750,7 +750,7 @@ static void igb_cache_ring_register(struct igb_adapter *adapter)
 u32 igb_rd32(struct e1000_hw *hw, u32 reg)
 {
 	struct igb_adapter *igb = container_of(hw, struct igb_adapter, hw);
-	u8 __iomem *hw_addr = ACCESS_ONCE(hw->hw_addr);
+	u8 __iomem *hw_addr = READ_ONCE(hw->hw_addr);
 	u32 value = 0;
 
 	if (E1000_REMOVED(hw_addr))
@@ -5326,7 +5326,7 @@ dma_error:
 				       DMA_TO_DEVICE);
 		dma_unmap_len_set(tx_buffer, len, 0);
 
-		if (i--)
+		if (i-- == 0)
 			i += tx_ring->count;
 		tx_buffer = &tx_ring->tx_buffer_info[i];
 	}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
index 523f9d05a810..8a32eb7d47b9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82598.c
@@ -175,31 +175,9 @@ static s32 ixgbe_init_phy_ops_82598(struct ixgbe_hw *hw)
  **/
 static s32 ixgbe_start_hw_82598(struct ixgbe_hw *hw)
 {
-#ifndef CONFIG_SPARC
-	u32 regval;
-	u32 i;
-#endif
 	s32 ret_val;
 
 	ret_val = ixgbe_start_hw_generic(hw);
-
-#ifndef CONFIG_SPARC
-	/* Disable relaxed ordering */
-	for (i = 0; ((i < hw->mac.max_tx_queues) &&
-	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
-		regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL(i));
-		regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
-		IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL(i), regval);
-	}
-
-	for (i = 0; ((i < hw->mac.max_rx_queues) &&
-	     (i < IXGBE_DCA_MAX_QUEUES_82598)); i++) {
-		regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
-		regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
-			    IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
-		IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
-	}
-#endif
 	if (ret_val)
 		return ret_val;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
index 2c19070d2a0b..6e6ab6f6875e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -366,25 +366,6 @@ s32 ixgbe_start_hw_gen2(struct ixgbe_hw *hw)
 	}
 	IXGBE_WRITE_FLUSH(hw);
 
-#ifndef CONFIG_ARCH_WANT_RELAX_ORDER
-	/* Disable relaxed ordering */
-	for (i = 0; i < hw->mac.max_tx_queues; i++) {
-		u32 regval;
-
-		regval = IXGBE_READ_REG(hw, IXGBE_DCA_TXCTRL_82599(i));
-		regval &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
-		IXGBE_WRITE_REG(hw, IXGBE_DCA_TXCTRL_82599(i), regval);
-	}
-
-	for (i = 0; i < hw->mac.max_rx_queues; i++) {
-		u32 regval;
-
-		regval = IXGBE_READ_REG(hw, IXGBE_DCA_RXCTRL(i));
-		regval &= ~(IXGBE_DCA_RXCTRL_DATA_WRO_EN |
-			    IXGBE_DCA_RXCTRL_HEAD_WRO_EN);
-		IXGBE_WRITE_REG(hw, IXGBE_DCA_RXCTRL(i), regval);
-	}
-#endif
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
index e083732adf64..a01409e2e06c 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.h
@@ -161,7 +161,7 @@ static inline bool ixgbe_removed(void __iomem *addr)
 
 static inline void ixgbe_write_reg(struct ixgbe_hw *hw, u32 reg, u32 value)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr);
+	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
 
 	if (ixgbe_removed(reg_addr))
 		return;
@@ -180,7 +180,7 @@ static inline void writeq(u64 val, void __iomem *addr)
 
 static inline void ixgbe_write_reg64(struct ixgbe_hw *hw, u32 reg, u64 value)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr);
+	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
 
 	if (ixgbe_removed(reg_addr))
 		return;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 72c565712a5f..c3e7a8191128 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -1048,7 +1048,7 @@ static int ixgbe_set_ringparam(struct net_device *netdev,
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
 	struct ixgbe_ring *temp_ring;
-	int i, err = 0;
+	int i, j, err = 0;
 	u32 new_rx_count, new_tx_count;
 
 	if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
@@ -1085,8 +1085,8 @@ static int ixgbe_set_ringparam(struct net_device *netdev,
 	}
 
 	/* allocate temporary buffer to store rings in */
-	i = max_t(int, adapter->num_tx_queues, adapter->num_rx_queues);
-	i = max_t(int, i, adapter->num_xdp_queues);
+	i = max_t(int, adapter->num_tx_queues + adapter->num_xdp_queues,
+		  adapter->num_rx_queues);
 	temp_ring = vmalloc(i * sizeof(struct ixgbe_ring));
 
 	if (!temp_ring) {
@@ -1118,8 +1118,8 @@ static int ixgbe_set_ringparam(struct net_device *netdev,
 			}
 		}
 
-		for (i = 0; i < adapter->num_xdp_queues; i++) {
-			memcpy(&temp_ring[i], adapter->xdp_ring[i],
+		for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
+			memcpy(&temp_ring[i], adapter->xdp_ring[j],
 			       sizeof(struct ixgbe_ring));
 
 			temp_ring[i].count = new_tx_count;
@@ -1139,10 +1139,10 @@ static int ixgbe_set_ringparam(struct net_device *netdev,
 			memcpy(adapter->tx_ring[i], &temp_ring[i],
 			       sizeof(struct ixgbe_ring));
 		}
-		for (i = 0; i < adapter->num_xdp_queues; i++) {
-			ixgbe_free_tx_resources(adapter->xdp_ring[i]);
+		for (j = 0; j < adapter->num_xdp_queues; j++, i++) {
+			ixgbe_free_tx_resources(adapter->xdp_ring[j]);
 
-			memcpy(adapter->xdp_ring[i], &temp_ring[i],
+			memcpy(adapter->xdp_ring[j], &temp_ring[i],
 			       sizeof(struct ixgbe_ring));
 		}
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index d962368d08d0..935a2f15b0b0 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -380,7 +380,7 @@ static void ixgbe_check_remove(struct ixgbe_hw *hw, u32 reg)
  */
 u32 ixgbe_read_reg(struct ixgbe_hw *hw, u32 reg)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr);
+	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
 	u32 value;
 
 	if (ixgbe_removed(reg_addr))
@@ -4881,7 +4881,7 @@ static void ixgbe_clear_udp_tunnel_port(struct ixgbe_adapter *adapter, u32 mask)
 				IXGBE_FLAG_GENEVE_OFFLOAD_CAPABLE)))
 		return;
 
-	vxlanctrl = IXGBE_READ_REG(hw, IXGBE_VXLANCTRL) && ~mask;
+	vxlanctrl = IXGBE_READ_REG(hw, IXGBE_VXLANCTRL) & ~mask;
 	IXGBE_WRITE_REG(hw, IXGBE_VXLANCTRL, vxlanctrl);
 
 	if (mask & IXGBE_VXLANCTRL_VXLAN_UDPPORT_MASK)
@@ -8020,29 +8020,23 @@ static int ixgbe_tx_map(struct ixgbe_ring *tx_ring,
 	return 0;
 dma_error:
 	dev_err(tx_ring->dev, "TX DMA map failed\n");
-	tx_buffer = &tx_ring->tx_buffer_info[i];
 
 	/* clear dma mappings for failed tx_buffer_info map */
-	while (tx_buffer != first) {
+	for (;;) {
+		tx_buffer = &tx_ring->tx_buffer_info[i];
 		if (dma_unmap_len(tx_buffer, len))
 			dma_unmap_page(tx_ring->dev,
 				       dma_unmap_addr(tx_buffer, dma),
 				       dma_unmap_len(tx_buffer, len),
 				       DMA_TO_DEVICE);
 		dma_unmap_len_set(tx_buffer, len, 0);
-
-		if (i--)
+		if (tx_buffer == first)
+			break;
+		if (i == 0)
 			i += tx_ring->count;
-		tx_buffer = &tx_ring->tx_buffer_info[i];
+		i--;
 	}
 
-	if (dma_unmap_len(tx_buffer, len))
-		dma_unmap_single(tx_ring->dev,
-				 dma_unmap_addr(tx_buffer, dma),
-				 dma_unmap_len(tx_buffer, len),
-				 DMA_TO_DEVICE);
-	dma_unmap_len_set(tx_buffer, len, 0);
-
 	dev_kfree_skb_any(first->skb);
 	first->skb = NULL;
 
@@ -8529,6 +8523,10 @@ static int ixgbe_ioctl(struct net_device *netdev, struct ifreq *req, int cmd)
 		return ixgbe_ptp_set_ts_config(adapter, req);
 	case SIOCGHWTSTAMP:
 		return ixgbe_ptp_get_ts_config(adapter, req);
+	case SIOCGMIIPHY:
+		if (!adapter->hw.phy.ops.read_reg)
+			return -EOPNOTSUPP;
+		/* fall through */
 	default:
 		return mdio_mii_ioctl(&adapter->hw.phy.mdio, if_mii(req), cmd);
 	}
@@ -8626,7 +8624,7 @@ static void ixgbe_get_stats64(struct net_device *netdev,
 
 	rcu_read_lock();
 	for (i = 0; i < adapter->num_rx_queues; i++) {
-		struct ixgbe_ring *ring = ACCESS_ONCE(adapter->rx_ring[i]);
+		struct ixgbe_ring *ring = READ_ONCE(adapter->rx_ring[i]);
 		u64 bytes, packets;
 		unsigned int start;
 
@@ -8642,12 +8640,12 @@ static void ixgbe_get_stats64(struct net_device *netdev,
 	}
 
 	for (i = 0; i < adapter->num_tx_queues; i++) {
-		struct ixgbe_ring *ring = ACCESS_ONCE(adapter->tx_ring[i]);
+		struct ixgbe_ring *ring = READ_ONCE(adapter->tx_ring[i]);
 
 		ixgbe_get_ring_stats64(stats, ring);
 	}
 	for (i = 0; i < adapter->num_xdp_queues; i++) {
-		struct ixgbe_ring *ring = ACCESS_ONCE(adapter->xdp_ring[i]);
+		struct ixgbe_ring *ring = READ_ONCE(adapter->xdp_ring[i]);
 
 		ixgbe_get_ring_stats64(stats, ring);
 	}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
index 86d6924a2b71..ae312c45696a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c
@@ -378,7 +378,7 @@ static int ixgbe_ptp_adjfreq_82599(struct ptp_clock_info *ptp, s32 ppb)
 	}
 
 	smp_mb();
-	incval = ACCESS_ONCE(adapter->base_incval);
+	incval = READ_ONCE(adapter->base_incval);
 
 	freq = incval;
 	freq *= ppb;
@@ -1159,7 +1159,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter)
 	}
 
 	/* update the base incval used to calculate frequency adjustment */
-	ACCESS_ONCE(adapter->base_incval) = incval;
+	WRITE_ONCE(adapter->base_incval, incval);
 	smp_mb();
 
 	/* need lock to prevent incorrect read while modifying cyclecounter */
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 032f8ac06357..cacb30682434 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -164,7 +164,7 @@ static void ixgbevf_check_remove(struct ixgbe_hw *hw, u32 reg)
 
 u32 ixgbevf_read_reg(struct ixgbe_hw *hw, u32 reg)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr);
+	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
 	u32 value;
 
 	if (IXGBE_REMOVED(reg_addr))
diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.h b/drivers/net/ethernet/intel/ixgbevf/vf.h
index 04d8d4ee4f04..c651fefcc3d2 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.h
@@ -182,7 +182,7 @@ struct ixgbevf_info {
 
 static inline void ixgbe_write_reg(struct ixgbe_hw *hw, u32 reg, u32 value)
 {
-	u8 __iomem *reg_addr = ACCESS_ONCE(hw->hw_addr);
+	u8 __iomem *reg_addr = READ_ONCE(hw->hw_addr);
 
 	if (IXGBE_REMOVED(reg_addr))
 		return;
diff --git a/drivers/net/ethernet/marvell/Makefile b/drivers/net/ethernet/marvell/Makefile
index ff1bffa74803..9498ed26dbe5 100644
--- a/drivers/net/ethernet/marvell/Makefile
+++ b/drivers/net/ethernet/marvell/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Marvell device drivers.
 #
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index dd0ee2691c86..fcf9ba5eb8d1 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c
@@ -333,7 +333,7 @@
 #define     MVPP2_GMAC_INBAND_AN_MASK		BIT(0)
 #define     MVPP2_GMAC_FLOW_CTRL_MASK		GENMASK(2, 1)
 #define     MVPP2_GMAC_PCS_ENABLE_MASK		BIT(3)
-#define     MVPP2_GMAC_PORT_RGMII_MASK		BIT(4)
+#define     MVPP2_GMAC_INTERNAL_CLK_MASK	BIT(4)
 #define     MVPP2_GMAC_DISABLE_PADDING		BIT(5)
 #define     MVPP2_GMAC_PORT_RESET_MASK		BIT(6)
 #define MVPP2_GMAC_AUTONEG_CONFIG		0xc
@@ -676,6 +676,7 @@ enum mvpp2_tag_type {
 #define MVPP2_PRS_RI_L3_MCAST			BIT(15)
 #define MVPP2_PRS_RI_L3_BCAST			(BIT(15) | BIT(16))
 #define MVPP2_PRS_RI_IP_FRAG_MASK		0x20000
+#define MVPP2_PRS_RI_IP_FRAG_TRUE		BIT(17)
 #define MVPP2_PRS_RI_UDF3_MASK			0x300000
 #define MVPP2_PRS_RI_UDF3_RX_SPECIAL		BIT(21)
 #define MVPP2_PRS_RI_L4_PROTO_MASK		0x1c00000
@@ -792,6 +793,7 @@ struct mvpp2 {
 	struct clk *pp_clk;
 	struct clk *gop_clk;
 	struct clk *mg_clk;
+	struct clk *axi_clk;
 
 	/* List of pointers to port structures */
 	struct mvpp2_port **port_list;
@@ -1165,6 +1167,11 @@ struct mvpp2_bm_pool {
 	u32 port_map;
 };
 
+#define IS_TSO_HEADER(txq_pcpu, addr) \
+	((addr) >= (txq_pcpu)->tso_headers_dma && \
+	 (addr) < (txq_pcpu)->tso_headers_dma + \
+	 (txq_pcpu)->size * TSO_HEADER_SIZE)
+
 /* Queue modes */
 #define MVPP2_QDIST_SINGLE_MODE	0
 #define MVPP2_QDIST_MULTI_MODE	1
@@ -1532,7 +1539,7 @@ static bool mvpp2_prs_tcam_data_cmp(struct mvpp2_prs_entry *pe, int offs,
 	int off = MVPP2_PRS_TCAM_DATA_BYTE(offs);
 	u16 tcam_data;
 
-	tcam_data = (8 << pe->tcam.byte[off + 1]) | pe->tcam.byte[off];
+	tcam_data = (pe->tcam.byte[off + 1] << 8) | pe->tcam.byte[off];
 	if (tcam_data != data)
 		return false;
 	return true;
@@ -2315,7 +2322,7 @@ static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto,
 	    (proto != IPPROTO_IGMP))
 		return -EINVAL;
 
-	/* Fragmented packet */
+	/* Not fragmented packet */
 	tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
 					MVPP2_PE_LAST_FREE_TID);
 	if (tid < 0)
@@ -2334,8 +2341,12 @@ static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto,
 				  MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
 	mvpp2_prs_sram_ai_update(&pe, MVPP2_PRS_IPV4_DIP_AI_BIT,
 				 MVPP2_PRS_IPV4_DIP_AI_BIT);
-	mvpp2_prs_sram_ri_update(&pe, ri | MVPP2_PRS_RI_IP_FRAG_MASK,
-				 ri_mask | MVPP2_PRS_RI_IP_FRAG_MASK);
+	mvpp2_prs_sram_ri_update(&pe, ri, ri_mask | MVPP2_PRS_RI_IP_FRAG_MASK);
+
+	mvpp2_prs_tcam_data_byte_set(&pe, 2, 0x00,
+				     MVPP2_PRS_TCAM_PROTO_MASK_L);
+	mvpp2_prs_tcam_data_byte_set(&pe, 3, 0x00,
+				     MVPP2_PRS_TCAM_PROTO_MASK);
 
 	mvpp2_prs_tcam_data_byte_set(&pe, 5, proto, MVPP2_PRS_TCAM_PROTO_MASK);
 	mvpp2_prs_tcam_ai_update(&pe, 0, MVPP2_PRS_IPV4_DIP_AI_BIT);
@@ -2346,7 +2357,7 @@ static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto,
 	mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
 	mvpp2_prs_hw_write(priv, &pe);
 
-	/* Not fragmented packet */
+	/* Fragmented packet */
 	tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
 					MVPP2_PE_LAST_FREE_TID);
 	if (tid < 0)
@@ -2358,8 +2369,11 @@ static int mvpp2_prs_ip4_proto(struct mvpp2 *priv, unsigned short proto,
 	pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
 	mvpp2_prs_sram_ri_update(&pe, ri, ri_mask);
 
-	mvpp2_prs_tcam_data_byte_set(&pe, 2, 0x00, MVPP2_PRS_TCAM_PROTO_MASK_L);
-	mvpp2_prs_tcam_data_byte_set(&pe, 3, 0x00, MVPP2_PRS_TCAM_PROTO_MASK);
+	mvpp2_prs_sram_ri_update(&pe, ri | MVPP2_PRS_RI_IP_FRAG_TRUE,
+				 ri_mask | MVPP2_PRS_RI_IP_FRAG_MASK);
+
+	mvpp2_prs_tcam_data_byte_set(&pe, 2, 0x00, 0x0);
+	mvpp2_prs_tcam_data_byte_set(&pe, 3, 0x00, 0x0);
 
 	/* Update shadow table and hw entry */
 	mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_IP4);
@@ -2600,8 +2614,8 @@ static void mvpp2_prs_mac_init(struct mvpp2 *priv)
 	/* place holders only - no ports */
 	mvpp2_prs_mac_drop_all_set(priv, 0, false);
 	mvpp2_prs_mac_promisc_set(priv, 0, false);
-	mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
-	mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
+	mvpp2_prs_mac_multi_set(priv, 0, MVPP2_PE_MAC_MC_ALL, false);
+	mvpp2_prs_mac_multi_set(priv, 0, MVPP2_PE_MAC_MC_IP6, false);
 }
 
 /* Set default entries for various types of dsa packets */
@@ -3382,7 +3396,7 @@ mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
 	struct mvpp2_prs_entry *pe;
 	int tid;
 
-	pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+	pe = kzalloc(sizeof(*pe), GFP_ATOMIC);
 	if (!pe)
 		return NULL;
 	mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
@@ -3444,7 +3458,7 @@ static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
 		if (tid < 0)
 			return tid;
 
-		pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+		pe = kzalloc(sizeof(*pe), GFP_ATOMIC);
 		if (!pe)
 			return -ENOMEM;
 		mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
@@ -4591,7 +4605,6 @@ static void mvpp2_port_mii_gmac_configure(struct mvpp2_port *port)
 	        val |= MVPP2_GMAC_INBAND_AN_MASK | MVPP2_GMAC_PCS_ENABLE_MASK;
 	} else if (phy_interface_mode_is_rgmii(port->phy_interface)) {
 		val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
-		val |= MVPP2_GMAC_PORT_RGMII_MASK;
 	}
 	writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
 
@@ -5313,8 +5326,9 @@ static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
 		struct mvpp2_txq_pcpu_buf *tx_buf =
 			txq_pcpu->buffs + txq_pcpu->txq_get_index;
 
-		dma_unmap_single(port->dev->dev.parent, tx_buf->dma,
-				 tx_buf->size, DMA_TO_DEVICE);
+		if (!IS_TSO_HEADER(txq_pcpu, tx_buf->dma))
+			dma_unmap_single(port->dev->dev.parent, tx_buf->dma,
+					 tx_buf->size, DMA_TO_DEVICE);
 		if (tx_buf->skb)
 			dev_kfree_skb_any(tx_buf->skb);
 
@@ -5601,7 +5615,7 @@ static int mvpp2_txq_init(struct mvpp2_port *port,
 
 		txq_pcpu->tso_headers =
 			dma_alloc_coherent(port->dev->dev.parent,
-					   MVPP2_AGGR_TXQ_SIZE * TSO_HEADER_SIZE,
+					   txq_pcpu->size * TSO_HEADER_SIZE,
 					   &txq_pcpu->tso_headers_dma,
 					   GFP_KERNEL);
 		if (!txq_pcpu->tso_headers)
@@ -5615,7 +5629,7 @@ cleanup:
 		kfree(txq_pcpu->buffs);
 
 		dma_free_coherent(port->dev->dev.parent,
-				  MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE,
+				  txq_pcpu->size * TSO_HEADER_SIZE,
 				  txq_pcpu->tso_headers,
 				  txq_pcpu->tso_headers_dma);
 	}
@@ -5639,7 +5653,7 @@ static void mvpp2_txq_deinit(struct mvpp2_port *port,
 		kfree(txq_pcpu->buffs);
 
 		dma_free_coherent(port->dev->dev.parent,
-				  MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE,
+				  txq_pcpu->size * TSO_HEADER_SIZE,
 				  txq_pcpu->tso_headers,
 				  txq_pcpu->tso_headers_dma);
 	}
@@ -6204,12 +6218,15 @@ static inline void
 tx_desc_unmap_put(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
 		  struct mvpp2_tx_desc *desc)
 {
+	struct mvpp2_txq_pcpu *txq_pcpu = this_cpu_ptr(txq->pcpu);
+
 	dma_addr_t buf_dma_addr =
 		mvpp2_txdesc_dma_addr_get(port, desc);
 	size_t buf_sz =
 		mvpp2_txdesc_size_get(port, desc);
-	dma_unmap_single(port->dev->dev.parent, buf_dma_addr,
-			 buf_sz, DMA_TO_DEVICE);
+	if (!IS_TSO_HEADER(txq_pcpu, buf_dma_addr))
+		dma_unmap_single(port->dev->dev.parent, buf_dma_addr,
+				 buf_sz, DMA_TO_DEVICE);
 	mvpp2_txq_desc_put(txq);
 }
 
@@ -6482,7 +6499,7 @@ out:
 	}
 
 	/* Finalize TX processing */
-	if (txq_pcpu->count >= txq->done_pkts_coal)
+	if (!port->has_tx_irqs && txq_pcpu->count >= txq->done_pkts_coal)
 		mvpp2_txq_done(port, txq, txq_pcpu);
 
 	/* Set the timer in case not all frags were processed */
@@ -6730,6 +6747,9 @@ static int mvpp2_irqs_init(struct mvpp2_port *port)
 	for (i = 0; i < port->nqvecs; i++) {
 		struct mvpp2_queue_vector *qv = port->qvecs + i;
 
+		if (qv->type == MVPP2_QUEUE_VECTOR_PRIVATE)
+			irq_set_status_flags(qv->irq, IRQ_NO_BALANCING);
+
 		err = request_irq(qv->irq, mvpp2_isr, 0, port->dev->name, qv);
 		if (err)
 			goto err;
@@ -6759,6 +6779,7 @@ static void mvpp2_irqs_deinit(struct mvpp2_port *port)
 		struct mvpp2_queue_vector *qv = port->qvecs + i;
 
 		irq_set_affinity_hint(qv->irq, NULL);
+		irq_clear_status_flags(qv->irq, IRQ_NO_BALANCING);
 		free_irq(qv->irq, qv);
 	}
 }
@@ -7496,7 +7517,7 @@ static void mvpp2_port_copy_mac_addr(struct net_device *dev, struct mvpp2 *priv,
 /* Ports initialization */
 static int mvpp2_port_probe(struct platform_device *pdev,
 			    struct device_node *port_node,
-			    struct mvpp2 *priv)
+			    struct mvpp2 *priv, int index)
 {
 	struct device_node *phy_node;
 	struct phy *comphy;
@@ -7670,7 +7691,7 @@ static int mvpp2_port_probe(struct platform_device *pdev,
 	}
 	netdev_info(dev, "Using %s mac address %pM\n", mac_from, dev->dev_addr);
 
-	priv->port_list[id] = port;
+	priv->port_list[index] = port;
 	return 0;
 
 err_free_port_pcpu:
@@ -7963,6 +7984,18 @@ static int mvpp2_probe(struct platform_device *pdev)
 		err = clk_prepare_enable(priv->mg_clk);
 		if (err < 0)
 			goto err_gop_clk;
+
+		priv->axi_clk = devm_clk_get(&pdev->dev, "axi_clk");
+		if (IS_ERR(priv->axi_clk)) {
+			err = PTR_ERR(priv->axi_clk);
+			if (err == -EPROBE_DEFER)
+				goto err_gop_clk;
+			priv->axi_clk = NULL;
+		} else {
+			err = clk_prepare_enable(priv->axi_clk);
+			if (err < 0)
+				goto err_gop_clk;
+		}
 	}
 
 	/* Get system's tclk rate */
@@ -8005,16 +8038,19 @@ static int mvpp2_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize ports */
+	i = 0;
 	for_each_available_child_of_node(dn, port_node) {
-		err = mvpp2_port_probe(pdev, port_node, priv);
+		err = mvpp2_port_probe(pdev, port_node, priv, i);
 		if (err < 0)
 			goto err_mg_clk;
+		i++;
 	}
 
 	platform_set_drvdata(pdev, priv);
 	return 0;
 
 err_mg_clk:
+	clk_disable_unprepare(priv->axi_clk);
 	if (priv->hw_version == MVPP22)
 		clk_disable_unprepare(priv->mg_clk);
 err_gop_clk:
@@ -8052,6 +8088,7 @@ static int mvpp2_remove(struct platform_device *pdev)
 				  aggr_txq->descs_dma);
 	}
 
+	clk_disable_unprepare(priv->axi_clk);
 	clk_disable_unprepare(priv->mg_clk);
 	clk_disable_unprepare(priv->pp_clk);
 	clk_disable_unprepare(priv->gop_clk);
diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
index 8a835e82256a..eef35bf3e849 100644
--- a/drivers/net/ethernet/marvell/skge.c
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -4193,7 +4193,7 @@ static struct pci_driver skge_driver = {
 	.driver.pm =	SKGE_PM_OPS,
 };
 
-static struct dmi_system_id skge_32bit_dma_boards[] = {
+static const struct dmi_system_id skge_32bit_dma_boards[] = {
 	{
 		.ident = "Gigabyte nForce boards",
 		.matches = {
diff --git a/drivers/net/ethernet/marvell/skge.h b/drivers/net/ethernet/marvell/skge.h
index 3ea151ff9c43..6fa7b6a34c08 100644
--- a/drivers/net/ethernet/marvell/skge.h
+++ b/drivers/net/ethernet/marvell/skge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for the new Marvell Yukon / SysKonnect driver.
  */
diff --git a/drivers/net/ethernet/marvell/sky2.h b/drivers/net/ethernet/marvell/sky2.h
index 0fe160796842..b02b6523083c 100644
--- a/drivers/net/ethernet/marvell/sky2.h
+++ b/drivers/net/ethernet/marvell/sky2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for the new Marvell Yukon 2 driver.
  */
diff --git a/drivers/net/ethernet/mellanox/mlx4/Makefile b/drivers/net/ethernet/mellanox/mlx4/Makefile
index c82217e0d22d..16b10d01fcf4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MLX4_CORE)		+= mlx4_core.o
 
 mlx4_core-y :=	alloc.o catas.o cmd.o cq.o eq.o fw.o fw_qos.o icm.o intf.o \
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 8a32a8f7f9c0..3541a7f9d12e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -414,8 +414,8 @@ bool mlx4_en_process_tx_cq(struct net_device *dev,
 
 	index = cons_index & size_mask;
 	cqe = mlx4_en_get_cqe(buf, index, priv->cqe_size) + factor;
-	last_nr_txbb = ACCESS_ONCE(ring->last_nr_txbb);
-	ring_cons = ACCESS_ONCE(ring->cons);
+	last_nr_txbb = READ_ONCE(ring->last_nr_txbb);
+	ring_cons = READ_ONCE(ring->cons);
 	ring_index = ring_cons & size_mask;
 	stamp_index = ring_index;
 
@@ -479,8 +479,8 @@ bool mlx4_en_process_tx_cq(struct net_device *dev,
 	wmb();
 
 	/* we want to dirty this cache line once */
-	ACCESS_ONCE(ring->last_nr_txbb) = last_nr_txbb;
-	ACCESS_ONCE(ring->cons) = ring_cons + txbbs_skipped;
+	WRITE_ONCE(ring->last_nr_txbb, last_nr_txbb);
+	WRITE_ONCE(ring->cons, ring_cons + txbbs_skipped);
 
 	if (cq->type == TX_XDP)
 		return done < budget;
@@ -858,7 +858,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 		goto tx_drop;
 
 	/* fetch ring->cons far ahead before needing it to avoid stall */
-	ring_cons = ACCESS_ONCE(ring->cons);
+	ring_cons = READ_ONCE(ring->cons);
 
 	real_size = get_real_size(skb, shinfo, dev, &lso_header_size,
 				  &inline_ok, &fragptr);
@@ -1066,7 +1066,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 		 */
 		smp_rmb();
 
-		ring_cons = ACCESS_ONCE(ring->cons);
+		ring_cons = READ_ONCE(ring->cons);
 		if (unlikely(!mlx4_en_is_tx_ring_full(ring))) {
 			netif_tx_wake_queue(ring->tx_queue);
 			ring->wake_queue++;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_stats.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_stats.h
index 926f3c3f3665..aab28eb27a30 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MLX4_STATS_
 #define _MLX4_STATS_
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index 87a3099808f3..714dd0dc5eef 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MLX5_CORE)		+= mlx5_core.o
 subdir-ccflags-y += -I$(src)
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/dev.c b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
index ff60cf7342ca..17b723218b0c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/dev.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/dev.c
@@ -77,35 +77,41 @@ static void add_delayed_event(struct mlx5_priv *priv,
 	list_add_tail(&delayed_event->list, &priv->waiting_events_list);
 }
 
-static void fire_delayed_event_locked(struct mlx5_device_context *dev_ctx,
-				      struct mlx5_core_dev *dev,
-				      struct mlx5_priv *priv)
+static void delayed_event_release(struct mlx5_device_context *dev_ctx,
+				  struct mlx5_priv *priv)
 {
+	struct mlx5_core_dev *dev = container_of(priv, struct mlx5_core_dev, priv);
 	struct mlx5_delayed_event *de;
 	struct mlx5_delayed_event *n;
+	struct list_head temp;
 
-	/* stop delaying events */
-	priv->is_accum_events = false;
+	INIT_LIST_HEAD(&temp);
+
+	spin_lock_irq(&priv->ctx_lock);
 
-	/* fire all accumulated events before new event comes */
-	list_for_each_entry_safe(de, n, &priv->waiting_events_list, list) {
+	priv->is_accum_events = false;
+	list_splice_init(&priv->waiting_events_list, &temp);
+	if (!dev_ctx->context)
+		goto out;
+	list_for_each_entry_safe(de, n, &temp, list)
 		dev_ctx->intf->event(dev, dev_ctx->context, de->event, de->param);
+
+out:
+	spin_unlock_irq(&priv->ctx_lock);
+
+	list_for_each_entry_safe(de, n, &temp, list) {
 		list_del(&de->list);
 		kfree(de);
 	}
 }
 
-static void cleanup_delayed_evets(struct mlx5_priv *priv)
+/* accumulating events that can come after mlx5_ib calls to
+ * ib_register_device, till adding that interface to the events list.
+ */
+static void delayed_event_start(struct mlx5_priv *priv)
 {
-	struct mlx5_delayed_event *de;
-	struct mlx5_delayed_event *n;
-
 	spin_lock_irq(&priv->ctx_lock);
-	priv->is_accum_events = false;
-	list_for_each_entry_safe(de, n, &priv->waiting_events_list, list) {
-		list_del(&de->list);
-		kfree(de);
-	}
+	priv->is_accum_events = true;
 	spin_unlock_irq(&priv->ctx_lock);
 }
 
@@ -122,11 +128,8 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv)
 		return;
 
 	dev_ctx->intf = intf;
-	/* accumulating events that can come after mlx5_ib calls to
-	 * ib_register_device, till adding that interface to the events list.
-	 */
 
-	priv->is_accum_events = true;
+	delayed_event_start(priv);
 
 	dev_ctx->context = intf->add(dev);
 	set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state);
@@ -137,8 +140,6 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv)
 		spin_lock_irq(&priv->ctx_lock);
 		list_add_tail(&dev_ctx->list, &priv->ctx_list);
 
-		fire_delayed_event_locked(dev_ctx, dev, priv);
-
 #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
 		if (dev_ctx->intf->pfault) {
 			if (priv->pfault) {
@@ -150,11 +151,12 @@ void mlx5_add_device(struct mlx5_interface *intf, struct mlx5_priv *priv)
 		}
 #endif
 		spin_unlock_irq(&priv->ctx_lock);
-	} else {
-		kfree(dev_ctx);
-		 /* delete all accumulated events */
-		cleanup_delayed_evets(priv);
 	}
+
+	delayed_event_release(dev_ctx, priv);
+
+	if (!dev_ctx->context)
+		kfree(dev_ctx);
 }
 
 static struct mlx5_device_context *mlx5_get_device(struct mlx5_interface *intf,
@@ -205,17 +207,21 @@ static void mlx5_attach_interface(struct mlx5_interface *intf, struct mlx5_priv
 	if (!dev_ctx)
 		return;
 
+	delayed_event_start(priv);
 	if (intf->attach) {
 		if (test_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state))
-			return;
+			goto out;
 		intf->attach(dev, dev_ctx->context);
 		set_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state);
 	} else {
 		if (test_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state))
-			return;
+			goto out;
 		dev_ctx->context = intf->add(dev);
 		set_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state);
 	}
+
+out:
+	delayed_event_release(dev_ctx, priv);
 }
 
 void mlx5_attach_device(struct mlx5_core_dev *dev)
@@ -414,8 +420,14 @@ void mlx5_core_event(struct mlx5_core_dev *dev, enum mlx5_dev_event event,
 	if (priv->is_accum_events)
 		add_delayed_event(priv, dev, event, param);
 
+	/* After mlx5_detach_device, the dev_ctx->intf is still set and dev_ctx is
+	 * still in priv->ctx_list. In this case, only notify the dev_ctx if its
+	 * ADDED or ATTACHED bit are set.
+	 */
 	list_for_each_entry(dev_ctx, &priv->ctx_list, list)
-		if (dev_ctx->intf->event)
+		if (dev_ctx->intf->event &&
+		    (test_bit(MLX5_INTERFACE_ADDED, &dev_ctx->state) ||
+		     test_bit(MLX5_INTERFACE_ATTACHED, &dev_ctx->state)))
 			dev_ctx->intf->event(dev, dev_ctx->context, event, param);
 
 	spin_unlock_irqrestore(&priv->ctx_lock, flags);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h
index 1e3a6c3e4132..80eef4163f52 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fs_tracepoint.h
@@ -139,7 +139,7 @@ TRACE_EVENT(mlx5_fs_del_fg,
 	{MLX5_FLOW_CONTEXT_ACTION_FWD_NEXT_PRIO, "NEXT_PRIO"}
 
 TRACE_EVENT(mlx5_fs_set_fte,
-	    TP_PROTO(const struct fs_fte *fte, bool new_fte),
+	    TP_PROTO(const struct fs_fte *fte, int new_fte),
 	    TP_ARGS(fte, new_fte),
 	    TP_STRUCT__entry(
 		__field(const struct fs_fte *, fte)
@@ -149,7 +149,7 @@ TRACE_EVENT(mlx5_fs_set_fte,
 		__field(u32, action)
 		__field(u32, flow_tag)
 		__field(u8,  mask_enable)
-		__field(bool, new_fte)
+		__field(int, new_fte)
 		__array(u32, mask_outer, MLX5_ST_SZ_DW(fte_match_set_lyr_2_4))
 		__array(u32, mask_inner, MLX5_ST_SZ_DW(fte_match_set_lyr_2_4))
 		__array(u32, mask_misc, MLX5_ST_SZ_DW(fte_match_set_misc))
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h
index cc13d3dbd366..13b5ef9d8703 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h
@@ -67,7 +67,7 @@
 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE                0xa
 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE                0xd
 
-#define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW            0x1
+#define MLX5E_PARAMS_MINIMUM_LOG_RQ_SIZE_MPW            0x2
 #define MLX5E_PARAMS_DEFAULT_LOG_RQ_SIZE_MPW            0x3
 #define MLX5E_PARAMS_MAXIMUM_LOG_RQ_SIZE_MPW            0x6
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
index c1d384fca4dc..51c4cc00a186 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c
@@ -41,6 +41,11 @@
 #define MLX5E_CEE_STATE_UP    1
 #define MLX5E_CEE_STATE_DOWN  0
 
+enum {
+	MLX5E_VENDOR_TC_GROUP_NUM = 7,
+	MLX5E_LOWEST_PRIO_GROUP   = 0,
+};
+
 /* If dcbx mode is non-host set the dcbx mode to host.
  */
 static int mlx5e_dcbnl_set_dcbx_mode(struct mlx5e_priv *priv,
@@ -85,6 +90,9 @@ static int mlx5e_dcbnl_ieee_getets(struct net_device *netdev,
 {
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	struct mlx5_core_dev *mdev = priv->mdev;
+	u8 tc_group[IEEE_8021QAZ_MAX_TCS];
+	bool is_tc_group_6_exist = false;
+	bool is_zero_bw_ets_tc = false;
 	int err = 0;
 	int i;
 
@@ -96,37 +104,64 @@ static int mlx5e_dcbnl_ieee_getets(struct net_device *netdev,
 		err = mlx5_query_port_prio_tc(mdev, i, &ets->prio_tc[i]);
 		if (err)
 			return err;
-	}
 
-	for (i = 0; i < ets->ets_cap; i++) {
+		err = mlx5_query_port_tc_group(mdev, i, &tc_group[i]);
+		if (err)
+			return err;
+
 		err = mlx5_query_port_tc_bw_alloc(mdev, i, &ets->tc_tx_bw[i]);
 		if (err)
 			return err;
+
+		if (ets->tc_tx_bw[i] < MLX5E_MAX_BW_ALLOC &&
+		    tc_group[i] == (MLX5E_LOWEST_PRIO_GROUP + 1))
+			is_zero_bw_ets_tc = true;
+
+		if (tc_group[i] == (MLX5E_VENDOR_TC_GROUP_NUM - 1))
+			is_tc_group_6_exist = true;
+	}
+
+	/* Report 0% ets tc if exits*/
+	if (is_zero_bw_ets_tc) {
+		for (i = 0; i < ets->ets_cap; i++)
+			if (tc_group[i] == MLX5E_LOWEST_PRIO_GROUP)
+				ets->tc_tx_bw[i] = 0;
+	}
+
+	/* Update tc_tsa based on fw setting*/
+	for (i = 0; i < ets->ets_cap; i++) {
 		if (ets->tc_tx_bw[i] < MLX5E_MAX_BW_ALLOC)
 			priv->dcbx.tc_tsa[i] = IEEE_8021QAZ_TSA_ETS;
+		else if (tc_group[i] == MLX5E_VENDOR_TC_GROUP_NUM &&
+			 !is_tc_group_6_exist)
+			priv->dcbx.tc_tsa[i] = IEEE_8021QAZ_TSA_VENDOR;
 	}
-
 	memcpy(ets->tc_tsa, priv->dcbx.tc_tsa, sizeof(ets->tc_tsa));
 
 	return err;
 }
 
-enum {
-	MLX5E_VENDOR_TC_GROUP_NUM = 7,
-	MLX5E_ETS_TC_GROUP_NUM    = 0,
-};
-
 static void mlx5e_build_tc_group(struct ieee_ets *ets, u8 *tc_group, int max_tc)
 {
 	bool any_tc_mapped_to_ets = false;
+	bool ets_zero_bw = false;
 	int strict_group;
 	int i;
 
-	for (i = 0; i <= max_tc; i++)
-		if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS)
+	for (i = 0; i <= max_tc; i++) {
+		if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) {
 			any_tc_mapped_to_ets = true;
+			if (!ets->tc_tx_bw[i])
+				ets_zero_bw = true;
+		}
+	}
 
-	strict_group = any_tc_mapped_to_ets ? 1 : 0;
+	/* strict group has higher priority than ets group */
+	strict_group = MLX5E_LOWEST_PRIO_GROUP;
+	if (any_tc_mapped_to_ets)
+		strict_group++;
+	if (ets_zero_bw)
+		strict_group++;
 
 	for (i = 0; i <= max_tc; i++) {
 		switch (ets->tc_tsa[i]) {
@@ -137,7 +172,9 @@ static void mlx5e_build_tc_group(struct ieee_ets *ets, u8 *tc_group, int max_tc)
 			tc_group[i] = strict_group++;
 			break;
 		case IEEE_8021QAZ_TSA_ETS:
-			tc_group[i] = MLX5E_ETS_TC_GROUP_NUM;
+			tc_group[i] = MLX5E_LOWEST_PRIO_GROUP;
+			if (ets->tc_tx_bw[i] && ets_zero_bw)
+				tc_group[i] = MLX5E_LOWEST_PRIO_GROUP + 1;
 			break;
 		}
 	}
@@ -146,9 +183,23 @@ static void mlx5e_build_tc_group(struct ieee_ets *ets, u8 *tc_group, int max_tc)
 static void mlx5e_build_tc_tx_bw(struct ieee_ets *ets, u8 *tc_tx_bw,
 				 u8 *tc_group, int max_tc)
 {
+	int bw_for_ets_zero_bw_tc = 0;
+	int last_ets_zero_bw_tc = -1;
+	int num_ets_zero_bw = 0;
 	int i;
 
 	for (i = 0; i <= max_tc; i++) {
+		if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS &&
+		    !ets->tc_tx_bw[i]) {
+			num_ets_zero_bw++;
+			last_ets_zero_bw_tc = i;
+		}
+	}
+
+	if (num_ets_zero_bw)
+		bw_for_ets_zero_bw_tc = MLX5E_MAX_BW_ALLOC / num_ets_zero_bw;
+
+	for (i = 0; i <= max_tc; i++) {
 		switch (ets->tc_tsa[i]) {
 		case IEEE_8021QAZ_TSA_VENDOR:
 			tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC;
@@ -157,12 +208,26 @@ static void mlx5e_build_tc_tx_bw(struct ieee_ets *ets, u8 *tc_tx_bw,
 			tc_tx_bw[i] = MLX5E_MAX_BW_ALLOC;
 			break;
 		case IEEE_8021QAZ_TSA_ETS:
-			tc_tx_bw[i] = ets->tc_tx_bw[i];
+			tc_tx_bw[i] = ets->tc_tx_bw[i] ?
+				      ets->tc_tx_bw[i] :
+				      bw_for_ets_zero_bw_tc;
 			break;
 		}
 	}
+
+	/* Make sure the total bw for ets zero bw group is 100% */
+	if (last_ets_zero_bw_tc != -1)
+		tc_tx_bw[last_ets_zero_bw_tc] +=
+			MLX5E_MAX_BW_ALLOC % num_ets_zero_bw;
 }
 
+/* If there are ETS BW 0,
+ *   Set ETS group # to 1 for all ETS non zero BW tcs. Their sum must be 100%.
+ *   Set group #0 to all the ETS BW 0 tcs and
+ *     equally splits the 100% BW between them
+ *   Report both group #0 and #1 as ETS type.
+ *     All the tcs in group #0 will be reported with 0% BW.
+ */
 int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets)
 {
 	struct mlx5_core_dev *mdev = priv->mdev;
@@ -188,7 +253,6 @@ int mlx5e_dcbnl_ieee_setets_core(struct mlx5e_priv *priv, struct ieee_ets *ets)
 		return err;
 
 	memcpy(priv->dcbx.tc_tsa, ets->tc_tsa, sizeof(ets->tc_tsa));
-
 	return err;
 }
 
@@ -209,17 +273,9 @@ static int mlx5e_dbcnl_validate_ets(struct net_device *netdev,
 	}
 
 	/* Validate Bandwidth Sum */
-	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) {
-		if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) {
-			if (!ets->tc_tx_bw[i]) {
-				netdev_err(netdev,
-					   "Failed to validate ETS: BW 0 is illegal\n");
-				return -EINVAL;
-			}
-
+	for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
+		if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS)
 			bw_sum += ets->tc_tx_bw[i];
-		}
-	}
 
 	if (bw_sum != 0 && bw_sum != 100) {
 		netdev_err(netdev,
@@ -533,8 +589,7 @@ static void mlx5e_dcbnl_getpgtccfgtx(struct net_device *netdev,
 static void mlx5e_dcbnl_getpgbwgcfgtx(struct net_device *netdev,
 				      int pgid, u8 *bw_pct)
 {
-	struct mlx5e_priv *priv = netdev_priv(netdev);
-	struct mlx5_core_dev *mdev = priv->mdev;
+	struct ieee_ets ets;
 
 	if (pgid >= CEE_DCBX_MAX_PGS) {
 		netdev_err(netdev,
@@ -542,8 +597,8 @@ static void mlx5e_dcbnl_getpgbwgcfgtx(struct net_device *netdev,
 		return;
 	}
 
-	if (mlx5_query_port_tc_bw_alloc(mdev, pgid, bw_pct))
-		*bw_pct = 0;
+	mlx5e_dcbnl_ieee_getets(netdev, &ets);
+	*bw_pct = ets.tc_tx_bw[pgid];
 }
 
 static void mlx5e_dcbnl_setpfccfg(struct net_device *netdev,
@@ -739,8 +794,6 @@ static void mlx5e_ets_init(struct mlx5e_priv *priv)
 		ets.prio_tc[i] = i;
 	}
 
-	memcpy(priv->dcbx.tc_tsa, ets.tc_tsa, sizeof(ets.tc_tsa));
-
 	/* tclass[prio=0]=1, tclass[prio=1]=0, tclass[prio=i]=i (for i>1) */
 	ets.prio_tc[0] = 1;
 	ets.prio_tc[1] = 0;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
index f11fd07ac4dd..4837045ffba3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_fs.c
@@ -291,7 +291,7 @@ void mlx5e_enable_vlan_filter(struct mlx5e_priv *priv)
 	priv->fs.vlan.filter_disabled = false;
 	if (priv->netdev->flags & IFF_PROMISC)
 		return;
-	mlx5e_del_any_vid_rules(priv);
+	mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
 }
 
 void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv)
@@ -302,7 +302,7 @@ void mlx5e_disable_vlan_filter(struct mlx5e_priv *priv)
 	priv->fs.vlan.filter_disabled = true;
 	if (priv->netdev->flags & IFF_PROMISC)
 		return;
-	mlx5e_add_any_vid_rules(priv);
+	mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
 }
 
 int mlx5e_vlan_rx_add_vid(struct net_device *dev, __always_unused __be16 proto,
@@ -365,21 +365,24 @@ static void mlx5e_execute_l2_action(struct mlx5e_priv *priv,
 				    struct mlx5e_l2_hash_node *hn)
 {
 	u8 action = hn->action;
+	u8 mac_addr[ETH_ALEN];
 	int l2_err = 0;
 
+	ether_addr_copy(mac_addr, hn->ai.addr);
+
 	switch (action) {
 	case MLX5E_ACTION_ADD:
 		mlx5e_add_l2_flow_rule(priv, &hn->ai, MLX5E_FULLMATCH);
-		if (!is_multicast_ether_addr(hn->ai.addr)) {
-			l2_err = mlx5_mpfs_add_mac(priv->mdev, hn->ai.addr);
+		if (!is_multicast_ether_addr(mac_addr)) {
+			l2_err = mlx5_mpfs_add_mac(priv->mdev, mac_addr);
 			hn->mpfs = !l2_err;
 		}
 		hn->action = MLX5E_ACTION_NONE;
 		break;
 
 	case MLX5E_ACTION_DEL:
-		if (!is_multicast_ether_addr(hn->ai.addr) && hn->mpfs)
-			l2_err = mlx5_mpfs_del_mac(priv->mdev, hn->ai.addr);
+		if (!is_multicast_ether_addr(mac_addr) && hn->mpfs)
+			l2_err = mlx5_mpfs_del_mac(priv->mdev, mac_addr);
 		mlx5e_del_l2_flow_rule(priv, &hn->ai);
 		mlx5e_del_l2_from_hash(hn);
 		break;
@@ -387,7 +390,7 @@ static void mlx5e_execute_l2_action(struct mlx5e_priv *priv,
 
 	if (l2_err)
 		netdev_warn(priv->netdev, "MPFS, failed to %s mac %pM, err(%d)\n",
-			    action == MLX5E_ACTION_ADD ? "add" : "del", hn->ai.addr, l2_err);
+			    action == MLX5E_ACTION_ADD ? "add" : "del", mac_addr, l2_err);
 }
 
 static void mlx5e_sync_netdev_addr(struct mlx5e_priv *priv)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
index dfc29720ab77..cc11bbbd0309 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c
@@ -184,7 +184,6 @@ static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
 	struct mlx5e_sw_stats temp, *s = &temp;
 	struct mlx5e_rq_stats *rq_stats;
 	struct mlx5e_sq_stats *sq_stats;
-	u64 tx_offload_none = 0;
 	int i, j;
 
 	memset(s, 0, sizeof(*s));
@@ -199,6 +198,7 @@ static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
 		s->rx_lro_bytes	+= rq_stats->lro_bytes;
 		s->rx_csum_none	+= rq_stats->csum_none;
 		s->rx_csum_complete += rq_stats->csum_complete;
+		s->rx_csum_unnecessary += rq_stats->csum_unnecessary;
 		s->rx_csum_unnecessary_inner += rq_stats->csum_unnecessary_inner;
 		s->rx_xdp_drop += rq_stats->xdp_drop;
 		s->rx_xdp_tx += rq_stats->xdp_tx;
@@ -229,14 +229,11 @@ static void mlx5e_update_sw_counters(struct mlx5e_priv *priv)
 			s->tx_queue_dropped	+= sq_stats->dropped;
 			s->tx_xmit_more		+= sq_stats->xmit_more;
 			s->tx_csum_partial_inner += sq_stats->csum_partial_inner;
-			tx_offload_none		+= sq_stats->csum_none;
+			s->tx_csum_none		+= sq_stats->csum_none;
+			s->tx_csum_partial	+= sq_stats->csum_partial;
 		}
 	}
 
-	/* Update calculated offload counters */
-	s->tx_csum_partial = s->tx_packets - tx_offload_none - s->tx_csum_partial_inner;
-	s->rx_csum_unnecessary = s->rx_packets - s->rx_csum_none - s->rx_csum_complete;
-
 	s->link_down_events_phy = MLX5_GET(ppcnt_reg,
 				priv->stats.pport.phy_counters,
 				counter_set.phys_layer_cntrs.link_down_events);
@@ -3333,8 +3330,8 @@ static int mlx5e_handle_feature(struct net_device *netdev,
 
 	err = feature_handler(netdev, enable);
 	if (err) {
-		netdev_err(netdev, "%s feature 0x%llx failed err %d\n",
-			   enable ? "Enable" : "Disable", feature, err);
+		netdev_err(netdev, "%s feature %pNF failed, err %d\n",
+			   enable ? "Enable" : "Disable", &feature, err);
 		return err;
 	}
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
index f1dd638384d3..91b1b0938931 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
@@ -215,22 +215,20 @@ static inline bool mlx5e_rx_cache_get(struct mlx5e_rq *rq,
 static inline int mlx5e_page_alloc_mapped(struct mlx5e_rq *rq,
 					  struct mlx5e_dma_info *dma_info)
 {
-	struct page *page;
-
 	if (mlx5e_rx_cache_get(rq, dma_info))
 		return 0;
 
-	page = dev_alloc_pages(rq->buff.page_order);
-	if (unlikely(!page))
+	dma_info->page = dev_alloc_pages(rq->buff.page_order);
+	if (unlikely(!dma_info->page))
 		return -ENOMEM;
 
-	dma_info->addr = dma_map_page(rq->pdev, page, 0,
+	dma_info->addr = dma_map_page(rq->pdev, dma_info->page, 0,
 				      RQ_PAGE_SIZE(rq), rq->buff.map_dir);
 	if (unlikely(dma_mapping_error(rq->pdev, dma_info->addr))) {
-		put_page(page);
+		put_page(dma_info->page);
+		dma_info->page = NULL;
 		return -ENOMEM;
 	}
-	dma_info->page = page;
 
 	return 0;
 }
@@ -627,6 +625,7 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 
 	if (lro) {
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
+		rq->stats.csum_unnecessary++;
 		return;
 	}
 
@@ -644,7 +643,9 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
 			skb->csum_level = 1;
 			skb->encapsulation = 1;
 			rq->stats.csum_unnecessary_inner++;
+			return;
 		}
+		rq->stats.csum_unnecessary++;
 		return;
 	}
 csum_none:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
index 6d199ffb1c0b..f8637213afc0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_stats.h
@@ -68,6 +68,7 @@ struct mlx5e_sw_stats {
 	u64 rx_xdp_drop;
 	u64 rx_xdp_tx;
 	u64 rx_xdp_tx_full;
+	u64 tx_csum_none;
 	u64 tx_csum_partial;
 	u64 tx_csum_partial_inner;
 	u64 tx_queue_stopped;
@@ -108,6 +109,7 @@ static const struct counter_desc sw_stats_desc[] = {
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_xdp_drop) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_xdp_tx) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, rx_xdp_tx_full) },
+	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_csum_none) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_csum_partial) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_csum_partial_inner) },
 	{ MLX5E_DECLARE_STAT(struct mlx5e_sw_stats, tx_queue_stopped) },
@@ -339,6 +341,7 @@ struct mlx5e_rq_stats {
 	u64 packets;
 	u64 bytes;
 	u64 csum_complete;
+	u64 csum_unnecessary;
 	u64 csum_unnecessary_inner;
 	u64 csum_none;
 	u64 lro_packets;
@@ -363,6 +366,7 @@ static const struct counter_desc rq_stats_desc[] = {
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, packets) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, bytes) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_complete) },
+	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_unnecessary) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_unnecessary_inner) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, csum_none) },
 	{ MLX5E_DECLARE_RX_STAT(struct mlx5e_rq_stats, xdp_drop) },
@@ -392,6 +396,7 @@ struct mlx5e_sq_stats {
 	u64 tso_bytes;
 	u64 tso_inner_packets;
 	u64 tso_inner_bytes;
+	u64 csum_partial;
 	u64 csum_partial_inner;
 	u64 nop;
 	/* less likely accessed in data path */
@@ -408,6 +413,7 @@ static const struct counter_desc sq_stats_desc[] = {
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, tso_bytes) },
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, tso_inner_packets) },
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, tso_inner_bytes) },
+	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, csum_partial) },
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, csum_partial_inner) },
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, nop) },
 	{ MLX5E_DECLARE_TX_STAT(struct mlx5e_sq_stats, csum_none) },
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index da503e6411da..9ba1f72060aa 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -78,9 +78,11 @@ struct mlx5e_tc_flow {
 };
 
 struct mlx5e_tc_flow_parse_attr {
+	struct ip_tunnel_info tun_info;
 	struct mlx5_flow_spec spec;
 	int num_mod_hdr_actions;
 	void *mod_hdr_actions;
+	int mirred_ifindex;
 };
 
 enum {
@@ -322,6 +324,12 @@ static void mlx5e_tc_del_nic_flow(struct mlx5e_priv *priv,
 static void mlx5e_detach_encap(struct mlx5e_priv *priv,
 			       struct mlx5e_tc_flow *flow);
 
+static int mlx5e_attach_encap(struct mlx5e_priv *priv,
+			      struct ip_tunnel_info *tun_info,
+			      struct net_device *mirred_dev,
+			      struct net_device **encap_dev,
+			      struct mlx5e_tc_flow *flow);
+
 static struct mlx5_flow_handle *
 mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 		      struct mlx5e_tc_flow_parse_attr *parse_attr,
@@ -329,9 +337,27 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 {
 	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 	struct mlx5_esw_flow_attr *attr = flow->esw_attr;
-	struct mlx5_flow_handle *rule;
+	struct net_device *out_dev, *encap_dev = NULL;
+	struct mlx5_flow_handle *rule = NULL;
+	struct mlx5e_rep_priv *rpriv;
+	struct mlx5e_priv *out_priv;
 	int err;
 
+	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) {
+		out_dev = __dev_get_by_index(dev_net(priv->netdev),
+					     attr->parse_attr->mirred_ifindex);
+		err = mlx5e_attach_encap(priv, &parse_attr->tun_info,
+					 out_dev, &encap_dev, flow);
+		if (err) {
+			rule = ERR_PTR(err);
+			if (err != -EAGAIN)
+				goto err_attach_encap;
+		}
+		out_priv = netdev_priv(encap_dev);
+		rpriv = out_priv->ppriv;
+		attr->out_rep = rpriv->rep;
+	}
+
 	err = mlx5_eswitch_add_vlan_action(esw, attr);
 	if (err) {
 		rule = ERR_PTR(err);
@@ -347,10 +373,14 @@ mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
 		}
 	}
 
-	rule = mlx5_eswitch_add_offloaded_rule(esw, &parse_attr->spec, attr);
-	if (IS_ERR(rule))
-		goto err_add_rule;
-
+	/* we get here if (1) there's no error (rule being null) or when
+	 * (2) there's an encap action and we're on -EAGAIN (no valid neigh)
+	 */
+	if (rule != ERR_PTR(-EAGAIN)) {
+		rule = mlx5_eswitch_add_offloaded_rule(esw, &parse_attr->spec, attr);
+		if (IS_ERR(rule))
+			goto err_add_rule;
+	}
 	return rule;
 
 err_add_rule:
@@ -361,6 +391,7 @@ err_mod_hdr:
 err_add_vlan:
 	if (attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP)
 		mlx5e_detach_encap(priv, flow);
+err_attach_encap:
 	return rule;
 }
 
@@ -389,6 +420,8 @@ static void mlx5e_tc_del_fdb_flow(struct mlx5e_priv *priv,
 void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
 			      struct mlx5e_encap_entry *e)
 {
+	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
+	struct mlx5_esw_flow_attr *esw_attr;
 	struct mlx5e_tc_flow *flow;
 	int err;
 
@@ -404,10 +437,9 @@ void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
 	mlx5e_rep_queue_neigh_stats_work(priv);
 
 	list_for_each_entry(flow, &e->flows, encap) {
-		flow->esw_attr->encap_id = e->encap_id;
-		flow->rule = mlx5e_tc_add_fdb_flow(priv,
-						   flow->esw_attr->parse_attr,
-						   flow);
+		esw_attr = flow->esw_attr;
+		esw_attr->encap_id = e->encap_id;
+		flow->rule = mlx5_eswitch_add_offloaded_rule(esw, &esw_attr->parse_attr->spec, esw_attr);
 		if (IS_ERR(flow->rule)) {
 			err = PTR_ERR(flow->rule);
 			mlx5_core_warn(priv->mdev, "Failed to update cached encapsulation flow, %d\n",
@@ -421,15 +453,13 @@ void mlx5e_tc_encap_flows_add(struct mlx5e_priv *priv,
 void mlx5e_tc_encap_flows_del(struct mlx5e_priv *priv,
 			      struct mlx5e_encap_entry *e)
 {
+	struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
 	struct mlx5e_tc_flow *flow;
-	struct mlx5_fc *counter;
 
 	list_for_each_entry(flow, &e->flows, encap) {
 		if (flow->flags & MLX5E_TC_FLOW_OFFLOADED) {
 			flow->flags &= ~MLX5E_TC_FLOW_OFFLOADED;
-			counter = mlx5_flow_rule_counter(flow->rule);
-			mlx5_del_flow_rules(flow->rule);
-			mlx5_fc_destroy(priv->mdev, counter);
+			mlx5_eswitch_del_offloaded_rule(esw, flow->rule, flow->esw_attr);
 		}
 	}
 
@@ -1317,6 +1347,69 @@ static bool csum_offload_supported(struct mlx5e_priv *priv, u32 action, u32 upda
 	return true;
 }
 
+static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
+					  struct tcf_exts *exts)
+{
+	const struct tc_action *a;
+	bool modify_ip_header;
+	LIST_HEAD(actions);
+	u8 htype, ip_proto;
+	void *headers_v;
+	u16 ethertype;
+	int nkeys, i;
+
+	headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
+	ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype);
+
+	/* for non-IP we only re-write MACs, so we're okay */
+	if (ethertype != ETH_P_IP && ethertype != ETH_P_IPV6)
+		goto out_ok;
+
+	modify_ip_header = false;
+	tcf_exts_to_list(exts, &actions);
+	list_for_each_entry(a, &actions, list) {
+		if (!is_tcf_pedit(a))
+			continue;
+
+		nkeys = tcf_pedit_nkeys(a);
+		for (i = 0; i < nkeys; i++) {
+			htype = tcf_pedit_htype(a, i);
+			if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 ||
+			    htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP6) {
+				modify_ip_header = true;
+				break;
+			}
+		}
+	}
+
+	ip_proto = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol);
+	if (modify_ip_header && ip_proto != IPPROTO_TCP && ip_proto != IPPROTO_UDP) {
+		pr_info("can't offload re-write of ip proto %d\n", ip_proto);
+		return false;
+	}
+
+out_ok:
+	return true;
+}
+
+static bool actions_match_supported(struct mlx5e_priv *priv,
+				    struct tcf_exts *exts,
+				    struct mlx5e_tc_flow_parse_attr *parse_attr,
+				    struct mlx5e_tc_flow *flow)
+{
+	u32 actions;
+
+	if (flow->flags & MLX5E_TC_FLOW_ESWITCH)
+		actions = flow->esw_attr->action;
+	else
+		actions = flow->nic_attr->action;
+
+	if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
+		return modify_header_match_supported(&parse_attr->spec, exts);
+
+	return true;
+}
+
 static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 				struct mlx5e_tc_flow_parse_attr *parse_attr,
 				struct mlx5e_tc_flow *flow)
@@ -1378,6 +1471,9 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 		return -EINVAL;
 	}
 
+	if (!actions_match_supported(priv, exts, parse_attr, flow))
+		return -EOPNOTSUPP;
+
 	return 0;
 }
 
@@ -1564,7 +1660,7 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv,
 		break;
 	default:
 		err = -EOPNOTSUPP;
-		goto out;
+		goto free_encap;
 	}
 	fl4.flowi4_tos = tun_key->tos;
 	fl4.daddr = tun_key->u.ipv4.dst;
@@ -1573,7 +1669,7 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv,
 	err = mlx5e_route_lookup_ipv4(priv, mirred_dev, &out_dev,
 				      &fl4, &n, &ttl);
 	if (err)
-		goto out;
+		goto free_encap;
 
 	/* used by mlx5e_detach_encap to lookup a neigh hash table
 	 * entry in the neigh hash table when a user deletes a rule
@@ -1590,7 +1686,7 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv,
 	 */
 	err = mlx5e_rep_encap_entry_attach(netdev_priv(out_dev), e);
 	if (err)
-		goto out;
+		goto free_encap;
 
 	read_lock_bh(&n->lock);
 	nud_state = n->nud_state;
@@ -1630,8 +1726,9 @@ static int mlx5e_create_encap_header_ipv4(struct mlx5e_priv *priv,
 
 destroy_neigh_entry:
 	mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e);
-out:
+free_encap:
 	kfree(encap_header);
+out:
 	if (n)
 		neigh_release(n);
 	return err;
@@ -1668,7 +1765,7 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv,
 		break;
 	default:
 		err = -EOPNOTSUPP;
-		goto out;
+		goto free_encap;
 	}
 
 	fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label);
@@ -1678,7 +1775,7 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv,
 	err = mlx5e_route_lookup_ipv6(priv, mirred_dev, &out_dev,
 				      &fl6, &n, &ttl);
 	if (err)
-		goto out;
+		goto free_encap;
 
 	/* used by mlx5e_detach_encap to lookup a neigh hash table
 	 * entry in the neigh hash table when a user deletes a rule
@@ -1695,7 +1792,7 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv,
 	 */
 	err = mlx5e_rep_encap_entry_attach(netdev_priv(out_dev), e);
 	if (err)
-		goto out;
+		goto free_encap;
 
 	read_lock_bh(&n->lock);
 	nud_state = n->nud_state;
@@ -1736,8 +1833,9 @@ static int mlx5e_create_encap_header_ipv6(struct mlx5e_priv *priv,
 
 destroy_neigh_entry:
 	mlx5e_rep_encap_entry_detach(netdev_priv(e->out_dev), e);
-out:
+free_encap:
 	kfree(encap_header);
+out:
 	if (n)
 		neigh_release(n);
 	return err;
@@ -1791,6 +1889,7 @@ vxlan_encap_offload_err:
 		}
 	}
 
+	/* must verify if encap is valid or not */
 	if (found)
 		goto attach_flow;
 
@@ -1817,6 +1916,8 @@ attach_flow:
 	*encap_dev = e->out_dev;
 	if (e->flags & MLX5_ENCAP_ENTRY_VALID)
 		attr->encap_id = e->encap_id;
+	else
+		err = -EAGAIN;
 
 	return err;
 
@@ -1871,7 +1972,7 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 
 		if (is_tcf_mirred_egress_redirect(a)) {
 			int ifindex = tcf_mirred_ifindex(a);
-			struct net_device *out_dev, *encap_dev = NULL;
+			struct net_device *out_dev;
 			struct mlx5e_priv *out_priv;
 
 			out_dev = __dev_get_by_index(dev_net(priv->netdev), ifindex);
@@ -1884,17 +1985,13 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 				rpriv = out_priv->ppriv;
 				attr->out_rep = rpriv->rep;
 			} else if (encap) {
-				err = mlx5e_attach_encap(priv, info,
-							 out_dev, &encap_dev, flow);
-				if (err && err != -EAGAIN)
-					return err;
+				parse_attr->mirred_ifindex = ifindex;
+				parse_attr->tun_info = *info;
+				attr->parse_attr = parse_attr;
 				attr->action |= MLX5_FLOW_CONTEXT_ACTION_ENCAP |
 					MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
 					MLX5_FLOW_CONTEXT_ACTION_COUNT;
-				out_priv = netdev_priv(encap_dev);
-				rpriv = out_priv->ppriv;
-				attr->out_rep = rpriv->rep;
-				attr->parse_attr = parse_attr;
+				/* attr->out_rep is resolved when we handle encap */
 			} else {
 				pr_err("devices %s %s not on same switch HW, can't offload forwarding\n",
 				       priv->netdev->name, out_dev->name);
@@ -1934,6 +2031,10 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
 
 		return -EINVAL;
 	}
+
+	if (!actions_match_supported(priv, exts, parse_attr, flow))
+		return -EOPNOTSUPP;
+
 	return err;
 }
 
@@ -1972,7 +2073,7 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv,
 	if (flow->flags & MLX5E_TC_FLOW_ESWITCH) {
 		err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow);
 		if (err < 0)
-			goto err_handle_encap_flow;
+			goto err_free;
 		flow->rule = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow);
 	} else {
 		err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow);
@@ -1983,10 +2084,13 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv,
 
 	if (IS_ERR(flow->rule)) {
 		err = PTR_ERR(flow->rule);
-		goto err_free;
+		if (err != -EAGAIN)
+			goto err_free;
 	}
 
-	flow->flags |= MLX5E_TC_FLOW_OFFLOADED;
+	if (err != -EAGAIN)
+		flow->flags |= MLX5E_TC_FLOW_OFFLOADED;
+
 	err = rhashtable_insert_fast(&tc->ht, &flow->node,
 				     tc->ht_params);
 	if (err)
@@ -2000,16 +2104,6 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv,
 err_del_rule:
 	mlx5e_tc_del_flow(priv, flow);
 
-err_handle_encap_flow:
-	if (err == -EAGAIN) {
-		err = rhashtable_insert_fast(&tc->ht, &flow->node,
-					     tc->ht_params);
-		if (err)
-			mlx5e_tc_del_flow(priv, flow);
-		else
-			return 0;
-	}
-
 err_free:
 	kvfree(parse_attr);
 	kfree(flow);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
index fee43e40fa16..1d6925d4369a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c
@@ -193,6 +193,7 @@ mlx5e_txwqe_build_eseg_csum(struct mlx5e_txqsq *sq, struct sk_buff *skb, struct
 			sq->stats.csum_partial_inner++;
 		} else {
 			eseg->cs_flags |= MLX5_ETH_WQE_L4_CSUM;
+			sq->stats.csum_partial++;
 		}
 	} else
 		sq->stats.csum_none++;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
index e906b754415c..ab92298eafc3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_txrx.c
@@ -49,7 +49,7 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget)
 	struct mlx5e_channel *c = container_of(napi, struct mlx5e_channel,
 					       napi);
 	bool busy = false;
-	int work_done;
+	int work_done = 0;
 	int i;
 
 	for (i = 0; i < c->num_tc; i++)
@@ -58,15 +58,17 @@ int mlx5e_napi_poll(struct napi_struct *napi, int budget)
 	if (c->xdp)
 		busy |= mlx5e_poll_xdpsq_cq(&c->rq.xdpsq.cq);
 
-	work_done = mlx5e_poll_rx_cq(&c->rq.cq, budget);
-	busy |= work_done == budget;
+	if (likely(budget)) { /* budget=0 means: don't poll rx rings */
+		work_done = mlx5e_poll_rx_cq(&c->rq.cq, budget);
+		busy |= work_done == budget;
+	}
 
 	busy |= c->rq.post_wqes(&c->rq);
 
 	if (busy) {
 		if (likely(mlx5e_channel_no_affinity_change(c)))
 			return budget;
-		if (work_done == budget)
+		if (budget && work_done == budget)
 			work_done--;
 	}
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.c
index e37453d838db..c0fd2212e890 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.c
@@ -71,11 +71,11 @@ int mlx5_fpga_access_reg(struct mlx5_core_dev *dev, u8 size, u64 addr,
 	return 0;
 }
 
-int mlx5_fpga_caps(struct mlx5_core_dev *dev, u32 *caps)
+int mlx5_fpga_caps(struct mlx5_core_dev *dev)
 {
 	u32 in[MLX5_ST_SZ_DW(fpga_cap)] = {0};
 
-	return mlx5_core_access_reg(dev, in, sizeof(in), caps,
+	return mlx5_core_access_reg(dev, in, sizeof(in), dev->caps.fpga,
 				    MLX5_ST_SZ_BYTES(fpga_cap),
 				    MLX5_REG_FPGA_CAP, 0, 0);
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.h b/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.h
index 94bdfd47c3f0..d05233c9b4f6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/cmd.h
@@ -65,7 +65,7 @@ struct mlx5_fpga_qp_counters {
 	u64 rx_total_drop;
 };
 
-int mlx5_fpga_caps(struct mlx5_core_dev *dev, u32 *caps);
+int mlx5_fpga_caps(struct mlx5_core_dev *dev);
 int mlx5_fpga_query(struct mlx5_core_dev *dev, struct mlx5_fpga_query *query);
 int mlx5_fpga_ctrl_op(struct mlx5_core_dev *dev, u8 op);
 int mlx5_fpga_access_reg(struct mlx5_core_dev *dev, u8 size, u64 addr,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
index 9034e9960a76..dc8970346521 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/core.c
@@ -139,8 +139,7 @@ int mlx5_fpga_device_start(struct mlx5_core_dev *mdev)
 	if (err)
 		goto out;
 
-	err = mlx5_fpga_caps(fdev->mdev,
-			     fdev->mdev->caps.hca_cur[MLX5_CAP_FPGA]);
+	err = mlx5_fpga_caps(fdev->mdev);
 	if (err)
 		goto out;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
index e0d0efd903bc..36ecc2b2e187 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_cmd.c
@@ -293,6 +293,9 @@ static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 	}
 
 	if (fte->action & MLX5_FLOW_CONTEXT_ACTION_COUNT) {
+		int max_list_size = BIT(MLX5_CAP_FLOWTABLE_TYPE(dev,
+					log_max_flow_counter,
+					ft->type));
 		int list_size = 0;
 
 		list_for_each_entry(dst, &fte->node.children, node.list) {
@@ -305,12 +308,17 @@ static int mlx5_cmd_set_fte(struct mlx5_core_dev *dev,
 			in_dests += MLX5_ST_SZ_BYTES(dest_format_struct);
 			list_size++;
 		}
+		if (list_size > max_list_size) {
+			err = -EINVAL;
+			goto err_out;
+		}
 
 		MLX5_SET(flow_context, in_flow_context, flow_counter_list_size,
 			 list_size);
 	}
 
 	err = mlx5_cmd_exec(dev, in, inlen, out, sizeof(out));
+err_out:
 	kvfree(in);
 	return err;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
index 5509a752f98e..48dd78975062 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.h
@@ -52,6 +52,7 @@ enum fs_flow_table_type {
 	FS_FT_FDB             = 0X4,
 	FS_FT_SNIFFER_RX	= 0X5,
 	FS_FT_SNIFFER_TX	= 0X6,
+	FS_FT_MAX_TYPE = FS_FT_SNIFFER_TX,
 };
 
 enum fs_flow_table_op_mod {
@@ -260,4 +261,14 @@ void mlx5_cleanup_fs(struct mlx5_core_dev *dev);
 #define fs_for_each_dst(pos, fte)			\
 	fs_list_for_each_entry(pos, &(fte)->node.children)
 
+#define MLX5_CAP_FLOWTABLE_TYPE(mdev, cap, type) (		\
+	(type == FS_FT_NIC_RX) ? MLX5_CAP_FLOWTABLE_NIC_RX(mdev, cap) :		\
+	(type == FS_FT_ESW_EGRESS_ACL) ? MLX5_CAP_ESW_EGRESS_ACL(mdev, cap) :		\
+	(type == FS_FT_ESW_INGRESS_ACL) ? MLX5_CAP_ESW_INGRESS_ACL(mdev, cap) :		\
+	(type == FS_FT_FDB) ? MLX5_CAP_ESW_FLOWTABLE_FDB(mdev, cap) :		\
+	(type == FS_FT_SNIFFER_RX) ? MLX5_CAP_FLOWTABLE_SNIFFER_RX(mdev, cap) :		\
+	(type == FS_FT_SNIFFER_TX) ? MLX5_CAP_FLOWTABLE_SNIFFER_TX(mdev, cap) :		\
+	(BUILD_BUG_ON_ZERO(FS_FT_SNIFFER_TX != FS_FT_MAX_TYPE))\
+	)
+
 #endif
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/health.c b/drivers/net/ethernet/mellanox/mlx5/core/health.c
index 8aea0a065e56..db86e1506c8b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/health.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/health.c
@@ -356,10 +356,11 @@ void mlx5_drain_health_wq(struct mlx5_core_dev *dev)
 void mlx5_drain_health_recovery(struct mlx5_core_dev *dev)
 {
 	struct mlx5_core_health *health = &dev->priv.health;
+	unsigned long flags;
 
-	spin_lock(&health->wq_lock);
+	spin_lock_irqsave(&health->wq_lock, flags);
 	set_bit(MLX5_DROP_NEW_RECOVERY_WORK, &health->flags);
-	spin_unlock(&health->wq_lock);
+	spin_unlock_irqrestore(&health->wq_lock, flags);
 	cancel_delayed_work_sync(&dev->priv.health.recover_work);
 }
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index 85298051a3e4..145e392ab849 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -572,12 +572,13 @@ void mlx5_rdma_netdev_free(struct net_device *netdev)
 {
 	struct mlx5e_priv          *priv    = mlx5i_epriv(netdev);
 	const struct mlx5e_profile *profile = priv->profile;
+	struct mlx5_core_dev       *mdev    = priv->mdev;
 
 	mlx5e_detach_netdev(priv);
 	profile->cleanup(priv);
 	destroy_workqueue(priv->wq);
 	free_netdev(netdev);
 
-	mlx5e_destroy_mdev_resources(priv->mdev);
+	mlx5e_destroy_mdev_resources(mdev);
 }
 EXPORT_SYMBOL(mlx5_rdma_netdev_free);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 0d2c8dcd6eae..06562c9a6b9c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -1482,9 +1482,16 @@ static int mlx5_try_fast_unload(struct mlx5_core_dev *dev)
 		return -EAGAIN;
 	}
 
+	/* Panic tear down fw command will stop the PCI bus communication
+	 * with the HCA, so the health polll is no longer needed.
+	 */
+	mlx5_drain_health_wq(dev);
+	mlx5_stop_health_poll(dev);
+
 	ret = mlx5_cmd_force_teardown_hca(dev);
 	if (ret) {
 		mlx5_core_dbg(dev, "Firmware couldn't do fast unload error: %d\n", ret);
+		mlx5_start_health_poll(dev);
 		return ret;
 	}
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/port.c b/drivers/net/ethernet/mellanox/mlx5/core/port.c
index 1975d4388d4f..e07061f565d6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/port.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/port.c
@@ -677,6 +677,27 @@ int mlx5_set_port_tc_group(struct mlx5_core_dev *mdev, u8 *tc_group)
 }
 EXPORT_SYMBOL_GPL(mlx5_set_port_tc_group);
 
+int mlx5_query_port_tc_group(struct mlx5_core_dev *mdev,
+			     u8 tc, u8 *tc_group)
+{
+	u32 out[MLX5_ST_SZ_DW(qetc_reg)];
+	void *ets_tcn_conf;
+	int err;
+
+	err = mlx5_query_port_qetcr_reg(mdev, out, sizeof(out));
+	if (err)
+		return err;
+
+	ets_tcn_conf = MLX5_ADDR_OF(qetc_reg, out,
+				    tc_configuration[tc]);
+
+	*tc_group = MLX5_GET(ets_tcn_config_reg, ets_tcn_conf,
+			     group);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mlx5_query_port_tc_group);
+
 int mlx5_set_port_tc_bw_alloc(struct mlx5_core_dev *mdev, u8 *tc_bw)
 {
 	u32 in[MLX5_ST_SZ_DW(qetc_reg)] = {0};
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
index 6c48e9959b65..2a8b529ce6dd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sriov.c
@@ -109,7 +109,7 @@ static int mlx5_device_enable_sriov(struct mlx5_core_dev *dev, int num_vfs)
 				mlx5_core_warn(dev,
 					       "failed to restore VF %d settings, err %d\n",
 					       vf, err);
-			continue;
+				continue;
 			}
 		}
 		mlx5_core_dbg(dev, "successfully enabled VF* %d\n", vf);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/Makefile b/drivers/net/ethernet/mellanox/mlxsw/Makefile
index 891ff418bb5e..9a5a1cc877b6 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/Makefile
+++ b/drivers/net/ethernet/mellanox/mlxsw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MLXSW_CORE)	+= mlxsw_core.o
 mlxsw_core-objs			:= core.o core_acl_flex_keys.o \
 				   core_acl_flex_actions.o
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 9d5e7cf288be..f3315bc874ad 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -96,6 +96,7 @@ struct mlxsw_core {
 	const struct mlxsw_bus *bus;
 	void *bus_priv;
 	const struct mlxsw_bus_info *bus_info;
+	struct workqueue_struct *emad_wq;
 	struct list_head rx_listener_list;
 	struct list_head event_listener_list;
 	struct {
@@ -465,7 +466,7 @@ static void mlxsw_emad_trans_timeout_schedule(struct mlxsw_reg_trans *trans)
 {
 	unsigned long timeout = msecs_to_jiffies(MLXSW_EMAD_TIMEOUT_MS);
 
-	mlxsw_core_schedule_dw(&trans->timeout_dw, timeout);
+	queue_delayed_work(trans->core->emad_wq, &trans->timeout_dw, timeout);
 }
 
 static int mlxsw_emad_transmit(struct mlxsw_core *mlxsw_core,
@@ -587,12 +588,18 @@ static const struct mlxsw_listener mlxsw_emad_rx_listener =
 
 static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
 {
+	struct workqueue_struct *emad_wq;
 	u64 tid;
 	int err;
 
 	if (!(mlxsw_core->bus->features & MLXSW_BUS_F_TXRX))
 		return 0;
 
+	emad_wq = alloc_workqueue("mlxsw_core_emad", WQ_MEM_RECLAIM, 0);
+	if (!emad_wq)
+		return -ENOMEM;
+	mlxsw_core->emad_wq = emad_wq;
+
 	/* Set the upper 32 bits of the transaction ID field to a random
 	 * number. This allows us to discard EMADs addressed to other
 	 * devices.
@@ -619,6 +626,7 @@ static int mlxsw_emad_init(struct mlxsw_core *mlxsw_core)
 err_emad_trap_set:
 	mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
 				   mlxsw_core);
+	destroy_workqueue(mlxsw_core->emad_wq);
 	return err;
 }
 
@@ -631,6 +639,7 @@ static void mlxsw_emad_fini(struct mlxsw_core *mlxsw_core)
 	mlxsw_core->emad.use_emad = false;
 	mlxsw_core_trap_unregister(mlxsw_core, &mlxsw_emad_rx_listener,
 				   mlxsw_core);
+	destroy_workqueue(mlxsw_core->emad_wq);
 }
 
 static struct sk_buff *mlxsw_emad_alloc(const struct mlxsw_core *mlxsw_core,
diff --git a/drivers/net/ethernet/mellanox/mlxsw/i2c.c b/drivers/net/ethernet/mellanox/mlxsw/i2c.c
index 12c3a4449120..c0dcfa05b077 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/i2c.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/i2c.c
@@ -294,7 +294,7 @@ mlxsw_i2c_write(struct device *dev, size_t in_mbox_size, u8 *in_mbox, int num,
 		write_tran.len = MLXSW_I2C_ADDR_WIDTH + chunk_size;
 		mlxsw_i2c_set_slave_addr(tran_buf, off);
 		memcpy(&tran_buf[MLXSW_I2C_ADDR_BUF_SIZE], in_mbox +
-		       chunk_size * i, chunk_size);
+		       MLXSW_I2C_BLK_MAX * i, chunk_size);
 
 		j = 0;
 		end = jiffies + timeout;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h
index cc27c5de5a1d..5acfbe5b8b9d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/reg.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h
@@ -5827,6 +5827,29 @@ MLXSW_ITEM32(reg, mtmp, mtr, 0x08, 30, 1);
  */
 MLXSW_ITEM32(reg, mtmp, max_temperature, 0x08, 0, 16);
 
+/* reg_mtmp_tee
+ * Temperature Event Enable.
+ * 0 - Do not generate event
+ * 1 - Generate event
+ * 2 - Generate single event
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mtmp, tee, 0x0C, 30, 2);
+
+#define MLXSW_REG_MTMP_THRESH_HI 0x348	/* 105 Celsius */
+
+/* reg_mtmp_temperature_threshold_hi
+ * High threshold for Temperature Warning Event. In 0.125 Celsius.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mtmp, temperature_threshold_hi, 0x0C, 0, 16);
+
+/* reg_mtmp_temperature_threshold_lo
+ * Low threshold for Temperature Warning Event. In 0.125 Celsius.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, mtmp, temperature_threshold_lo, 0x10, 0, 16);
+
 #define MLXSW_REG_MTMP_SENSOR_NAME_SIZE 8
 
 /* reg_mtmp_sensor_name
@@ -5843,6 +5866,8 @@ static inline void mlxsw_reg_mtmp_pack(char *payload, u8 sensor_index,
 	mlxsw_reg_mtmp_sensor_index_set(payload, sensor_index);
 	mlxsw_reg_mtmp_mte_set(payload, max_temp_enable);
 	mlxsw_reg_mtmp_mtr_set(payload, max_temp_reset);
+	mlxsw_reg_mtmp_temperature_threshold_hi_set(payload,
+						    MLXSW_REG_MTMP_THRESH_HI);
 }
 
 static inline void mlxsw_reg_mtmp_unpack(char *payload, unsigned int *p_temp,
@@ -6401,6 +6426,36 @@ static inline void mlxsw_reg_mgpc_pack(char *payload, u32 counter_index,
 	mlxsw_reg_mgpc_opcode_set(payload, opcode);
 }
 
+/* TIGCR - Tunneling IPinIP General Configuration Register
+ * -------------------------------------------------------
+ * The TIGCR register is used for setting up the IPinIP Tunnel configuration.
+ */
+#define MLXSW_REG_TIGCR_ID 0xA801
+#define MLXSW_REG_TIGCR_LEN 0x10
+
+MLXSW_REG_DEFINE(tigcr, MLXSW_REG_TIGCR_ID, MLXSW_REG_TIGCR_LEN);
+
+/* reg_tigcr_ipip_ttlc
+ * For IPinIP Tunnel encapsulation: whether to copy the ttl from the packet
+ * header.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, tigcr, ttlc, 0x04, 8, 1);
+
+/* reg_tigcr_ipip_ttl_uc
+ * The TTL for IPinIP Tunnel encapsulation of unicast packets if
+ * reg_tigcr_ipip_ttlc is unset.
+ * Access: RW
+ */
+MLXSW_ITEM32(reg, tigcr, ttl_uc, 0x04, 0, 8);
+
+static inline void mlxsw_reg_tigcr_pack(char *payload, bool ttlc, u8 ttl_uc)
+{
+	MLXSW_REG_ZERO(tigcr, payload);
+	mlxsw_reg_tigcr_ttlc_set(payload, ttlc);
+	mlxsw_reg_tigcr_ttl_uc_set(payload, ttl_uc);
+}
+
 /* SBPR - Shared Buffer Pools Register
  * -----------------------------------
  * The SBPR configures and retrieves the shared buffer pools and configuration.
@@ -6881,6 +6936,7 @@ static const struct mlxsw_reg_info *mlxsw_reg_infos[] = {
 	MLXSW_REG(mcc),
 	MLXSW_REG(mcda),
 	MLXSW_REG(mgpc),
+	MLXSW_REG(tigcr),
 	MLXSW_REG(sbpr),
 	MLXSW_REG(sbcm),
 	MLXSW_REG(sbpm),
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index ed7cd6c48019..696b99e65a5a 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -575,15 +575,14 @@ static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp,
 }
 
 static struct mlxsw_sp_span_entry *
-mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port)
+mlxsw_sp_span_entry_find(struct mlxsw_sp *mlxsw_sp, u8 local_port)
 {
-	struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp;
 	int i;
 
 	for (i = 0; i < mlxsw_sp->span.entries_count; i++) {
 		struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i];
 
-		if (curr->used && curr->local_port == port->local_port)
+		if (curr->used && curr->local_port == local_port)
 			return curr;
 	}
 	return NULL;
@@ -594,7 +593,8 @@ static struct mlxsw_sp_span_entry
 {
 	struct mlxsw_sp_span_entry *span_entry;
 
-	span_entry = mlxsw_sp_span_entry_find(port);
+	span_entry = mlxsw_sp_span_entry_find(port->mlxsw_sp,
+					      port->local_port);
 	if (span_entry) {
 		/* Already exists, just take a reference */
 		span_entry->ref_count++;
@@ -783,12 +783,13 @@ err_port_bind:
 }
 
 static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from,
-					struct mlxsw_sp_port *to,
+					u8 destination_port,
 					enum mlxsw_sp_span_type type)
 {
 	struct mlxsw_sp_span_entry *span_entry;
 
-	span_entry = mlxsw_sp_span_entry_find(to);
+	span_entry = mlxsw_sp_span_entry_find(from->mlxsw_sp,
+					      destination_port);
 	if (!span_entry) {
 		netdev_err(from->dev, "no span entry found\n");
 		return;
@@ -1563,14 +1564,12 @@ static void
 mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port,
 				      struct mlxsw_sp_port_mall_mirror_tc_entry *mirror)
 {
-	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	enum mlxsw_sp_span_type span_type;
-	struct mlxsw_sp_port *to_port;
 
-	to_port = mlxsw_sp->ports[mirror->to_local_port];
 	span_type = mirror->ingress ?
 			MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS;
-	mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type);
+	mlxsw_sp_span_mirror_remove(mlxsw_sp_port, mirror->to_local_port,
+				    span_type);
 }
 
 static int
@@ -2545,7 +2544,9 @@ out:
 	return err;
 }
 
-#define MLXSW_SP_QSFP_I2C_ADDR 0x50
+#define MLXSW_SP_I2C_ADDR_LOW 0x50
+#define MLXSW_SP_I2C_ADDR_HIGH 0x51
+#define MLXSW_SP_EEPROM_PAGE_LENGTH 256
 
 static int mlxsw_sp_query_module_eeprom(struct mlxsw_sp_port *mlxsw_sp_port,
 					u16 offset, u16 size, void *data,
@@ -2554,12 +2555,25 @@ static int mlxsw_sp_query_module_eeprom(struct mlxsw_sp_port *mlxsw_sp_port,
 	struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
 	char eeprom_tmp[MLXSW_SP_REG_MCIA_EEPROM_SIZE];
 	char mcia_pl[MLXSW_REG_MCIA_LEN];
+	u16 i2c_addr;
 	int status;
 	int err;
 
 	size = min_t(u16, size, MLXSW_SP_REG_MCIA_EEPROM_SIZE);
+
+	if (offset < MLXSW_SP_EEPROM_PAGE_LENGTH &&
+	    offset + size > MLXSW_SP_EEPROM_PAGE_LENGTH)
+		/* Cross pages read, read until offset 256 in low page */
+		size = MLXSW_SP_EEPROM_PAGE_LENGTH - offset;
+
+	i2c_addr = MLXSW_SP_I2C_ADDR_LOW;
+	if (offset >= MLXSW_SP_EEPROM_PAGE_LENGTH) {
+		i2c_addr = MLXSW_SP_I2C_ADDR_HIGH;
+		offset -= MLXSW_SP_EEPROM_PAGE_LENGTH;
+	}
+
 	mlxsw_reg_mcia_pack(mcia_pl, mlxsw_sp_port->mapping.module,
-			    0, 0, offset, size, MLXSW_SP_QSFP_I2C_ADDR);
+			    0, 0, offset, size, i2c_addr);
 
 	err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mcia), mcia_pl);
 	if (err)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
index f0fb898533fb..5189022a1c8c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
@@ -2723,6 +2723,7 @@ static void mlxsw_sp_nexthop_type_fini(struct mlxsw_sp *mlxsw_sp,
 		mlxsw_sp_nexthop_rif_fini(nh);
 		break;
 	case MLXSW_SP_NEXTHOP_TYPE_IPIP:
+		mlxsw_sp_nexthop_rif_fini(nh);
 		mlxsw_sp_nexthop_ipip_fini(mlxsw_sp, nh);
 		break;
 	}
@@ -2742,7 +2743,11 @@ static int mlxsw_sp_nexthop4_type_init(struct mlxsw_sp *mlxsw_sp,
 	    router->ipip_ops_arr[ipipt]->can_offload(mlxsw_sp, dev,
 						     MLXSW_SP_L3_PROTO_IPV4)) {
 		nh->type = MLXSW_SP_NEXTHOP_TYPE_IPIP;
-		return mlxsw_sp_nexthop_ipip_init(mlxsw_sp, ipipt, nh, dev);
+		err = mlxsw_sp_nexthop_ipip_init(mlxsw_sp, ipipt, nh, dev);
+		if (err)
+			return err;
+		mlxsw_sp_nexthop_rif_init(nh, &nh->ipip_entry->ol_lb->common);
+		return 0;
 	}
 
 	nh->type = MLXSW_SP_NEXTHOP_TYPE_ETH;
@@ -3500,20 +3505,6 @@ static int mlxsw_sp_fib_lpm_tree_link(struct mlxsw_sp *mlxsw_sp,
 static void mlxsw_sp_fib_lpm_tree_unlink(struct mlxsw_sp *mlxsw_sp,
 					 struct mlxsw_sp_fib *fib)
 {
-	struct mlxsw_sp_prefix_usage req_prefix_usage = {{ 0 } };
-	struct mlxsw_sp_lpm_tree *lpm_tree;
-
-	/* Aggregate prefix lengths across all virtual routers to make
-	 * sure we only have used prefix lengths in the LPM tree.
-	 */
-	mlxsw_sp_vrs_prefixes(mlxsw_sp, fib->proto, &req_prefix_usage);
-	lpm_tree = mlxsw_sp_lpm_tree_get(mlxsw_sp, &req_prefix_usage,
-					 fib->proto);
-	if (IS_ERR(lpm_tree))
-		goto err_tree_get;
-	mlxsw_sp_vrs_lpm_tree_replace(mlxsw_sp, fib, lpm_tree);
-
-err_tree_get:
 	if (!mlxsw_sp_prefix_usage_none(&fib->prefix_usage))
 		return;
 	mlxsw_sp_vr_lpm_tree_unbind(mlxsw_sp, fib);
@@ -4009,7 +4000,11 @@ static int mlxsw_sp_nexthop6_type_init(struct mlxsw_sp *mlxsw_sp,
 	    router->ipip_ops_arr[ipipt]->can_offload(mlxsw_sp, dev,
 						     MLXSW_SP_L3_PROTO_IPV6)) {
 		nh->type = MLXSW_SP_NEXTHOP_TYPE_IPIP;
-		return mlxsw_sp_nexthop_ipip_init(mlxsw_sp, ipipt, nh, dev);
+		err = mlxsw_sp_nexthop_ipip_init(mlxsw_sp, ipipt, nh, dev);
+		if (err)
+			return err;
+		mlxsw_sp_nexthop_rif_init(nh, &nh->ipip_entry->ol_lb->common);
+		return 0;
 	}
 
 	nh->type = MLXSW_SP_NEXTHOP_TYPE_ETH;
@@ -4868,7 +4863,8 @@ static int mlxsw_sp_router_fib_event(struct notifier_block *nb,
 	struct fib_notifier_info *info = ptr;
 	struct mlxsw_sp_router *router;
 
-	if (!net_eq(info->net, &init_net))
+	if (!net_eq(info->net, &init_net) ||
+	    (info->family != AF_INET && info->family != AF_INET6))
 		return NOTIFY_DONE;
 
 	fib_work = kzalloc(sizeof(*fib_work), GFP_ATOMIC);
@@ -5067,6 +5063,7 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp,
 	vr = mlxsw_sp_vr_get(mlxsw_sp, tb_id ? : RT_TABLE_MAIN);
 	if (IS_ERR(vr))
 		return ERR_CAST(vr);
+	vr->rif_count++;
 
 	err = mlxsw_sp_rif_index_alloc(mlxsw_sp, &rif_index);
 	if (err)
@@ -5098,7 +5095,6 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp,
 
 	mlxsw_sp_rif_counters_alloc(rif);
 	mlxsw_sp->router->rifs[rif_index] = rif;
-	vr->rif_count++;
 
 	return rif;
 
@@ -5109,6 +5105,7 @@ err_fid_get:
 	kfree(rif);
 err_rif_alloc:
 err_rif_index_alloc:
+	vr->rif_count--;
 	mlxsw_sp_vr_put(vr);
 	return ERR_PTR(err);
 }
@@ -5123,7 +5120,6 @@ void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif)
 	mlxsw_sp_router_rif_gone_sync(mlxsw_sp, rif);
 	vr = &mlxsw_sp->router->vrs[rif->vr_id];
 
-	vr->rif_count--;
 	mlxsw_sp->router->rifs[rif->rif_index] = NULL;
 	mlxsw_sp_rif_counters_free(rif);
 	ops->deconfigure(rif);
@@ -5131,6 +5127,7 @@ void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif)
 		/* Loopback RIFs are not associated with a FID. */
 		mlxsw_sp_fid_put(fid);
 	kfree(rif);
+	vr->rif_count--;
 	mlxsw_sp_vr_put(vr);
 }
 
@@ -5899,11 +5896,20 @@ static void mlxsw_sp_rifs_fini(struct mlxsw_sp *mlxsw_sp)
 	kfree(mlxsw_sp->router->rifs);
 }
 
+static int
+mlxsw_sp_ipip_config_tigcr(struct mlxsw_sp *mlxsw_sp)
+{
+	char tigcr_pl[MLXSW_REG_TIGCR_LEN];
+
+	mlxsw_reg_tigcr_pack(tigcr_pl, true, 0);
+	return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tigcr), tigcr_pl);
+}
+
 static int mlxsw_sp_ipips_init(struct mlxsw_sp *mlxsw_sp)
 {
 	mlxsw_sp->router->ipip_ops_arr = mlxsw_sp_ipip_ops_arr;
 	INIT_LIST_HEAD(&mlxsw_sp->router->ipip_list);
-	return 0;
+	return mlxsw_sp_ipip_config_tigcr(mlxsw_sp);
 }
 
 static void mlxsw_sp_ipips_fini(struct mlxsw_sp *mlxsw_sp)
diff --git a/drivers/net/ethernet/micrel/Makefile b/drivers/net/ethernet/micrel/Makefile
index c83e4bc50c73..848fc1c5a5dc 100644
--- a/drivers/net/ethernet/micrel/Makefile
+++ b/drivers/net/ethernet/micrel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Micrel network device drivers.
 #
diff --git a/drivers/net/ethernet/micrel/ks8695net.h b/drivers/net/ethernet/micrel/ks8695net.h
index 80eff6ea5163..b18fad4ad5fd 100644
--- a/drivers/net/ethernet/micrel/ks8695net.h
+++ b/drivers/net/ethernet/micrel/ks8695net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Micrel KS8695 (Centaur) Ethernet.
  *
diff --git a/drivers/net/ethernet/microchip/enc28j60_hw.h b/drivers/net/ethernet/microchip/enc28j60_hw.h
index 25b41de49f0e..da4ab172527d 100644
--- a/drivers/net/ethernet/microchip/enc28j60_hw.h
+++ b/drivers/net/ethernet/microchip/enc28j60_hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * enc28j60_hw.h: EDTP FrameThrower style enc28j60 registers
  *
diff --git a/drivers/net/ethernet/microchip/encx24j600_hw.h b/drivers/net/ethernet/microchip/encx24j600_hw.h
index 4be73d5553f8..f604a260ede7 100644
--- a/drivers/net/ethernet/microchip/encx24j600_hw.h
+++ b/drivers/net/ethernet/microchip/encx24j600_hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * encx24j600_hw.h: Register definitions
  *
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp.h b/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp.h
index b7fc26c4f738..cf73810608a2 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp.h
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MYRI10GE_MCP_H__
 #define __MYRI10GE_MCP_H__
 
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp_gen_header.h b/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp_gen_header.h
index 75ec5e7cf50d..95a0095a4a75 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp_gen_header.h
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge_mcp_gen_header.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MYRI10GE_MCP_GEN_HEADER_H__
 #define __MYRI10GE_MCP_GEN_HEADER_H__
 
diff --git a/drivers/net/ethernet/natsemi/Makefile b/drivers/net/ethernet/natsemi/Makefile
index 764c532a96d1..cc664977596e 100644
--- a/drivers/net/ethernet/natsemi/Makefile
+++ b/drivers/net/ethernet/natsemi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the National Semi-conductor Sonic devices.
 #
diff --git a/drivers/net/ethernet/natsemi/jazzsonic.c b/drivers/net/ethernet/natsemi/jazzsonic.c
index a6caeb567c0d..d5b28884e21e 100644
--- a/drivers/net/ethernet/natsemi/jazzsonic.c
+++ b/drivers/net/ethernet/natsemi/jazzsonic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * jazzsonic.c
  *
diff --git a/drivers/net/ethernet/natsemi/macsonic.c b/drivers/net/ethernet/natsemi/macsonic.c
index 3ca6ae7caf55..a42433fb6949 100644
--- a/drivers/net/ethernet/natsemi/macsonic.c
+++ b/drivers/net/ethernet/natsemi/macsonic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * macsonic.c
  *
diff --git a/drivers/net/ethernet/natsemi/sonic.h b/drivers/net/ethernet/natsemi/sonic.h
index 7b0a8db57af9..421b1a283fed 100644
--- a/drivers/net/ethernet/natsemi/sonic.h
+++ b/drivers/net/ethernet/natsemi/sonic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Header file for sonic.c
  *
diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c
index 9ee0f69a83c0..1817deea98a4 100644
--- a/drivers/net/ethernet/natsemi/xtsonic.c
+++ b/drivers/net/ethernet/natsemi/xtsonic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xtsonic.c
  *
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index 50ea69d88480..5dd5f61e1114 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -2629,7 +2629,7 @@ static void vxge_poll_vp_lockup(unsigned long data)
 		ring = &vdev->vpaths[i].ring;
 
 		/* Truncated to machine word size number of frames */
-		rx_frms = ACCESS_ONCE(ring->stats.rx_frms);
+		rx_frms = READ_ONCE(ring->stats.rx_frms);
 
 		/* Did this vpath received any packets */
 		if (ring->stats.prev_rx_frms == rx_frms) {
diff --git a/drivers/net/ethernet/netronome/nfp/Makefile b/drivers/net/ethernet/netronome/nfp/Makefile
index 96e579a15cbe..3cafa3d15082 100644
--- a/drivers/net/ethernet/netronome/nfp/Makefile
+++ b/drivers/net/ethernet/netronome/nfp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NFP)	+= nfp.o
 
 nfp-objs := \
diff --git a/drivers/net/ethernet/netronome/nfp/flower/action.c b/drivers/net/ethernet/netronome/nfp/flower/action.c
index db9750695dc7..8ea9320014ee 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/action.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/action.c
@@ -110,6 +110,8 @@ nfp_fl_output(struct nfp_fl_output *output, const struct tc_action *action,
 	 */
 	if (!switchdev_port_same_parent_id(in_dev, out_dev))
 		return -EOPNOTSUPP;
+	if (!nfp_netdev_is_nfp_repr(out_dev))
+		return -EOPNOTSUPP;
 
 	output->port = cpu_to_be32(nfp_repr_get_port_id(out_dev));
 	if (!output->port)
diff --git a/drivers/net/ethernet/netronome/nfp/flower/offload.c b/drivers/net/ethernet/netronome/nfp/flower/offload.c
index d396183108f7..a18b4d2b1d3e 100644
--- a/drivers/net/ethernet/netronome/nfp/flower/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/flower/offload.c
@@ -44,6 +44,16 @@
 #include "../nfp_net.h"
 #include "../nfp_port.h"
 
+#define NFP_FLOWER_WHITELIST_DISSECTOR \
+	(BIT(FLOW_DISSECTOR_KEY_CONTROL) | \
+	 BIT(FLOW_DISSECTOR_KEY_BASIC) | \
+	 BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) | \
+	 BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) | \
+	 BIT(FLOW_DISSECTOR_KEY_PORTS) | \
+	 BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) | \
+	 BIT(FLOW_DISSECTOR_KEY_VLAN) | \
+	 BIT(FLOW_DISSECTOR_KEY_IP))
+
 static int
 nfp_flower_xmit_flow(struct net_device *netdev,
 		     struct nfp_fl_payload *nfp_flow, u8 mtype)
@@ -112,6 +122,9 @@ nfp_flower_calculate_key_layers(struct nfp_fl_key_ls *ret_key_ls,
 	u8 key_layer;
 	int key_size;
 
+	if (flow->dissector->used_keys & ~NFP_FLOWER_WHITELIST_DISSECTOR)
+		return -EOPNOTSUPP;
+
 	if (dissector_uses_key(flow->dissector,
 			       FLOW_DISSECTOR_KEY_ENC_CONTROL)) {
 		struct flow_dissector_key_control *mask_enc_ctl =
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_main.c b/drivers/net/ethernet/netronome/nfp/nfp_main.c
index f055b1774d65..f8fa63b66739 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_main.c
@@ -74,6 +74,45 @@ static const struct pci_device_id nfp_pci_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(pci, nfp_pci_device_ids);
 
+static bool nfp_board_ready(struct nfp_pf *pf)
+{
+	const char *cp;
+	long state;
+	int err;
+
+	cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
+	if (!cp)
+		return false;
+
+	err = kstrtol(cp, 0, &state);
+	if (err < 0)
+		return false;
+
+	return state == 15;
+}
+
+static int nfp_pf_board_state_wait(struct nfp_pf *pf)
+{
+	const unsigned long wait_until = jiffies + 10 * HZ;
+
+	while (!nfp_board_ready(pf)) {
+		if (time_is_before_eq_jiffies(wait_until)) {
+			nfp_err(pf->cpp, "NFP board initialization timeout\n");
+			return -EINVAL;
+		}
+
+		nfp_info(pf->cpp, "waiting for board initialization\n");
+		if (msleep_interruptible(500))
+			return -ERESTARTSYS;
+
+		/* Refresh cached information */
+		kfree(pf->hwinfo);
+		pf->hwinfo = nfp_hwinfo_read(pf->cpp);
+	}
+
+	return 0;
+}
+
 static int nfp_pcie_sriov_read_nfd_limit(struct nfp_pf *pf)
 {
 	int err;
@@ -312,6 +351,10 @@ static int nfp_nsp_init(struct pci_dev *pdev, struct nfp_pf *pf)
 	struct nfp_nsp *nsp;
 	int err;
 
+	err = nfp_resource_wait(pf->cpp, NFP_RESOURCE_NSP, 30);
+	if (err)
+		return err;
+
 	nsp = nfp_nsp_open(pf->cpp);
 	if (IS_ERR(nsp)) {
 		err = PTR_ERR(nsp);
@@ -425,6 +468,10 @@ static int nfp_pci_probe(struct pci_dev *pdev,
 		 nfp_hwinfo_lookup(pf->hwinfo, "assembly.revision"),
 		 nfp_hwinfo_lookup(pf->hwinfo, "cpld.version"));
 
+	err = nfp_pf_board_state_wait(pf);
+	if (err)
+		goto err_hwinfo_free;
+
 	err = devlink_register(devlink, &pdev->dev);
 	if (err)
 		goto err_hwinfo_free;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 1c0187f0af51..e118b5f23996 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -1180,10 +1180,14 @@ static void *nfp_net_rx_alloc_one(struct nfp_net_dp *dp, dma_addr_t *dma_addr)
 {
 	void *frag;
 
-	if (!dp->xdp_prog)
+	if (!dp->xdp_prog) {
 		frag = netdev_alloc_frag(dp->fl_bufsz);
-	else
-		frag = page_address(alloc_page(GFP_KERNEL | __GFP_COLD));
+	} else {
+		struct page *page;
+
+		page = alloc_page(GFP_KERNEL | __GFP_COLD);
+		frag = page ? page_address(page) : NULL;
+	}
 	if (!frag) {
 		nn_dp_warn(dp, "Failed to alloc receive page frag\n");
 		return NULL;
@@ -1203,10 +1207,14 @@ static void *nfp_net_napi_alloc_one(struct nfp_net_dp *dp, dma_addr_t *dma_addr)
 {
 	void *frag;
 
-	if (!dp->xdp_prog)
+	if (!dp->xdp_prog) {
 		frag = napi_alloc_frag(dp->fl_bufsz);
-	else
-		frag = page_address(alloc_page(GFP_ATOMIC | __GFP_COLD));
+	} else {
+		struct page *page;
+
+		page = alloc_page(GFP_ATOMIC | __GFP_COLD);
+		frag = page ? page_address(page) : NULL;
+	}
 	if (!frag) {
 		nn_dp_warn(dp, "Failed to alloc receive page frag\n");
 		return NULL;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
index 07969f06df10..dc016dfec64d 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_ethtool.c
@@ -464,7 +464,7 @@ static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
 
 		do {
 			start = u64_stats_fetch_begin(&nn->r_vecs[i].rx_sync);
-			*data++ = nn->r_vecs[i].rx_pkts;
+			data[0] = nn->r_vecs[i].rx_pkts;
 			tmp[0] = nn->r_vecs[i].hw_csum_rx_ok;
 			tmp[1] = nn->r_vecs[i].hw_csum_rx_inner_ok;
 			tmp[2] = nn->r_vecs[i].hw_csum_rx_error;
@@ -472,14 +472,16 @@ static u64 *nfp_vnic_get_sw_stats(struct net_device *netdev, u64 *data)
 
 		do {
 			start = u64_stats_fetch_begin(&nn->r_vecs[i].tx_sync);
-			*data++ = nn->r_vecs[i].tx_pkts;
-			*data++ = nn->r_vecs[i].tx_busy;
+			data[1] = nn->r_vecs[i].tx_pkts;
+			data[2] = nn->r_vecs[i].tx_busy;
 			tmp[3] = nn->r_vecs[i].hw_csum_tx;
 			tmp[4] = nn->r_vecs[i].hw_csum_tx_inner;
 			tmp[5] = nn->r_vecs[i].tx_gather;
 			tmp[6] = nn->r_vecs[i].tx_lso;
 		} while (u64_stats_fetch_retry(&nn->r_vecs[i].tx_sync, start));
 
+		data += 3;
+
 		for (j = 0; j < NN_ET_RVEC_GATHER_STATS; j++)
 			gathered_stats[j] += tmp[j];
 	}
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index 5abb9ba31e7d..ff373acd28f3 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -64,23 +64,6 @@
 
 #define NFP_PF_CSR_SLICE_SIZE	(32 * 1024)
 
-static int nfp_is_ready(struct nfp_pf *pf)
-{
-	const char *cp;
-	long state;
-	int err;
-
-	cp = nfp_hwinfo_lookup(pf->hwinfo, "board.state");
-	if (!cp)
-		return 0;
-
-	err = kstrtol(cp, 0, &state);
-	if (err < 0)
-		return 0;
-
-	return state == 15;
-}
-
 /**
  * nfp_net_get_mac_addr() - Get the MAC address.
  * @pf:       NFP PF handle
@@ -725,12 +708,6 @@ int nfp_net_pci_probe(struct nfp_pf *pf)
 
 	INIT_WORK(&pf->port_refresh_work, nfp_net_refresh_vnics);
 
-	/* Verify that the board has completed initialization */
-	if (!nfp_is_ready(pf)) {
-		nfp_err(pf->cpp, "NFP is not ready for NIC operation.\n");
-		return -EINVAL;
-	}
-
 	if (!pf->rtbl) {
 		nfp_err(pf->cpp, "No %s, giving up.\n",
 			pf->fw_loaded ? "symbol table" : "firmware found");
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
index 1a8d04a1e113..3ce51f03126f 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp.h
@@ -97,6 +97,8 @@ nfp_resource_acquire(struct nfp_cpp *cpp, const char *name);
 
 void nfp_resource_release(struct nfp_resource *res);
 
+int nfp_resource_wait(struct nfp_cpp *cpp, const char *name, unsigned int secs);
+
 u32 nfp_resource_cpp_id(struct nfp_resource *res);
 
 const char *nfp_resource_name(struct nfp_resource *res);
diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
index 072612263dab..b1dd13ff282b 100644
--- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
+++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c
@@ -250,6 +250,51 @@ void nfp_resource_release(struct nfp_resource *res)
 }
 
 /**
+ * nfp_resource_wait() - Wait for resource to appear
+ * @cpp:	NFP CPP handle
+ * @name:	Name of the resource
+ * @secs:	Number of seconds to wait
+ *
+ * Wait for resource to appear in the resource table, grab and release
+ * its lock.  The wait is jiffies-based, don't expect fine granularity.
+ *
+ * Return: 0 on success, errno otherwise.
+ */
+int nfp_resource_wait(struct nfp_cpp *cpp, const char *name, unsigned int secs)
+{
+	unsigned long warn_at = jiffies + NFP_MUTEX_WAIT_FIRST_WARN * HZ;
+	unsigned long err_at = jiffies + secs * HZ;
+	struct nfp_resource *res;
+
+	while (true) {
+		res = nfp_resource_acquire(cpp, name);
+		if (!IS_ERR(res)) {
+			nfp_resource_release(res);
+			return 0;
+		}
+
+		if (PTR_ERR(res) != -ENOENT) {
+			nfp_err(cpp, "error waiting for resource %s: %ld\n",
+				name, PTR_ERR(res));
+			return PTR_ERR(res);
+		}
+		if (time_is_before_eq_jiffies(err_at)) {
+			nfp_err(cpp, "timeout waiting for resource %s\n", name);
+			return -ETIMEDOUT;
+		}
+		if (time_is_before_eq_jiffies(warn_at)) {
+			warn_at = jiffies + NFP_MUTEX_WAIT_NEXT_WARN * HZ;
+			nfp_info(cpp, "waiting for NFP resource %s\n", name);
+		}
+		if (msleep_interruptible(10)) {
+			nfp_err(cpp, "wait for resource %s interrupted\n",
+				name);
+			return -ERESTARTSYS;
+		}
+	}
+}
+
+/**
  * nfp_resource_cpp_id() - Return the cpp_id of a resource handle
  * @res:	NFP Resource handle
  *
diff --git a/drivers/net/ethernet/nuvoton/w90p910_ether.c b/drivers/net/ethernet/nuvoton/w90p910_ether.c
index 89ab786da25f..4a67c55aa9f1 100644
--- a/drivers/net/ethernet/nuvoton/w90p910_ether.c
+++ b/drivers/net/ethernet/nuvoton/w90p910_ether.c
@@ -11,6 +11,7 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
 #include <linux/mii.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
diff --git a/drivers/net/ethernet/qlogic/Makefile b/drivers/net/ethernet/qlogic/Makefile
index cee90e05beb8..6cd2e333a5fc 100644
--- a/drivers/net/ethernet/qlogic/Makefile
+++ b/drivers/net/ethernet/qlogic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the QLogic network device drivers.
 #
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile b/drivers/net/ethernet/qlogic/qed/Makefile
index 82dd47068e18..82a0b90185df 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_QED) := qed.o
 
 qed-y := qed_cxt.o qed_dev.o qed_hw.o qed_init_fw_funcs.o qed_init_ops.o \
diff --git a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
index eaca4578435d..8f6ccc0c39e5 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dcbx.c
@@ -1244,7 +1244,6 @@ int qed_dcbx_get_config_params(struct qed_hwfn *p_hwfn,
 	if (!dcbx_info)
 		return -ENOMEM;
 
-	memset(dcbx_info, 0, sizeof(*dcbx_info));
 	rc = qed_dcbx_query_params(p_hwfn, dcbx_info, QED_DCBX_OPERATIONAL_MIB);
 	if (rc) {
 		kfree(dcbx_info);
diff --git a/drivers/net/ethernet/qlogic/qed/qed_selftest.h b/drivers/net/ethernet/qlogic/qed/qed_selftest.h
index 739ddb730967..ad00d082fec8 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_selftest.h
+++ b/drivers/net/ethernet/qlogic/qed/qed_selftest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _QED_SELFTEST_API_H
 #define _QED_SELFTEST_API_H
 #include <linux/types.h>
diff --git a/drivers/net/ethernet/qlogic/qlcnic/Makefile b/drivers/net/ethernet/qlogic/qlcnic/Makefile
index 3c2c2c7c1559..dbaeab344667 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/Makefile
+++ b/drivers/net/ethernet/qlogic/qlcnic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Qlogic 1G/10G Ethernet Driver for CNA devices
 #
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c b/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
index fe2599b83d09..31389ab8bdf7 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/slab.h>
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c b/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c
index 31f40148fa5c..5edbd532127d 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_ethtool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/module.h>
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 9feec7009443..29fea74bff2e 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -4725,9 +4725,9 @@ static const struct net_device_ops qlge_netdev_ops = {
 	.ndo_vlan_rx_kill_vid	= qlge_vlan_rx_kill_vid,
 };
 
-static void ql_timer(unsigned long data)
+static void ql_timer(struct timer_list *t)
 {
-	struct ql_adapter *qdev = (struct ql_adapter *)data;
+	struct ql_adapter *qdev = from_timer(qdev, t, timer);
 	u32 var = 0;
 
 	var = ql_read32(qdev, STS);
@@ -4806,11 +4806,8 @@ static int qlge_probe(struct pci_dev *pdev,
 	/* Start up the timer to trigger EEH if
 	 * the bus goes dead
 	 */
-	init_timer_deferrable(&qdev->timer);
-	qdev->timer.data = (unsigned long)qdev;
-	qdev->timer.function = ql_timer;
-	qdev->timer.expires = jiffies + (5*HZ);
-	add_timer(&qdev->timer);
+	timer_setup(&qdev->timer, ql_timer, TIMER_DEFERRABLE);
+	mod_timer(&qdev->timer, jiffies + (5*HZ));
 	ql_link_off(qdev);
 	ql_display_dev_info(ndev);
 	atomic_set(&qdev->lb_count, 0);
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c b/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
index 7ad146080c36..384c8bc874f3 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "qlge.h"
 
 int ql_unpause_mpi_risc(struct ql_adapter *qdev)
diff --git a/drivers/net/ethernet/qualcomm/Makefile b/drivers/net/ethernet/qualcomm/Makefile
index 1847350f48a7..9250976dd884 100644
--- a/drivers/net/ethernet/qualcomm/Makefile
+++ b/drivers/net/ethernet/qualcomm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Qualcomm network device drivers.
 #
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c b/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c
index bbe24639aa5a..c8c6231b87f3 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac-ethtool.c
@@ -88,6 +88,8 @@ static void emac_set_msglevel(struct net_device *netdev, u32 data)
 static int emac_get_sset_count(struct net_device *netdev, int sset)
 {
 	switch (sset) {
+	case ETH_SS_PRIV_FLAGS:
+		return 1;
 	case ETH_SS_STATS:
 		return EMAC_STATS_LEN;
 	default:
@@ -100,6 +102,10 @@ static void emac_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
 	unsigned int i;
 
 	switch (stringset) {
+	case ETH_SS_PRIV_FLAGS:
+		strcpy(data, "single-pause-mode");
+		break;
+
 	case ETH_SS_STATS:
 		for (i = 0; i < EMAC_STATS_LEN; i++) {
 			strlcpy(data, emac_ethtool_stat_strings[i],
@@ -230,6 +236,27 @@ static int emac_get_regs_len(struct net_device *netdev)
 	return EMAC_MAX_REG_SIZE * sizeof(u32);
 }
 
+#define EMAC_PRIV_ENABLE_SINGLE_PAUSE	BIT(0)
+
+static int emac_set_priv_flags(struct net_device *netdev, u32 flags)
+{
+	struct emac_adapter *adpt = netdev_priv(netdev);
+
+	adpt->single_pause_mode = !!(flags & EMAC_PRIV_ENABLE_SINGLE_PAUSE);
+
+	if (netif_running(netdev))
+		return emac_reinit_locked(adpt);
+
+	return 0;
+}
+
+static u32 emac_get_priv_flags(struct net_device *netdev)
+{
+	struct emac_adapter *adpt = netdev_priv(netdev);
+
+	return adpt->single_pause_mode ? EMAC_PRIV_ENABLE_SINGLE_PAUSE : 0;
+}
+
 static const struct ethtool_ops emac_ethtool_ops = {
 	.get_link_ksettings = phy_ethtool_get_link_ksettings,
 	.set_link_ksettings = phy_ethtool_set_link_ksettings,
@@ -253,6 +280,9 @@ static const struct ethtool_ops emac_ethtool_ops = {
 
 	.get_regs_len    = emac_get_regs_len,
 	.get_regs        = emac_get_regs,
+
+	.set_priv_flags = emac_set_priv_flags,
+	.get_priv_flags = emac_get_priv_flags,
 };
 
 void emac_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/qualcomm/emac/emac-mac.c b/drivers/net/ethernet/qualcomm/emac/emac-mac.c
index bcd4708b3745..3ed9033e56db 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac-mac.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac-mac.c
@@ -551,6 +551,28 @@ static void emac_mac_start(struct emac_adapter *adpt)
 	mac &= ~(HUGEN | VLAN_STRIP | TPAUSE | SIMR | HUGE | MULTI_ALL |
 		 DEBUG_MODE | SINGLE_PAUSE_MODE);
 
+	/* Enable single-pause-frame mode if requested.
+	 *
+	 * If enabled, the EMAC will send a single pause frame when the RX
+	 * queue is full.  This normally leads to packet loss because
+	 * the pause frame disables the remote MAC only for 33ms (the quanta),
+	 * and then the remote MAC continues sending packets even though
+	 * the RX queue is still full.
+	 *
+	 * If disabled, the EMAC sends a pause frame every 31ms until the RX
+	 * queue is no longer full.  Normally, this is the preferred
+	 * method of operation.  However, when the system is hung (e.g.
+	 * cores are halted), the EMAC interrupt handler is never called
+	 * and so the RX queue fills up quickly and stays full.  The resuling
+	 * non-stop "flood" of pause frames sometimes has the effect of
+	 * disabling nearby switches.  In some cases, other nearby switches
+	 * are also affected, shutting down the entire network.
+	 *
+	 * The user can enable or disable single-pause-frame mode
+	 * via ethtool.
+	 */
+	mac |= adpt->single_pause_mode ? SINGLE_PAUSE_MODE : 0;
+
 	writel_relaxed(csr1, adpt->csr + EMAC_EMAC_WRAPPER_CSR1);
 
 	writel_relaxed(mac, adpt->base + EMAC_MAC_CTRL);
@@ -876,7 +898,8 @@ static void emac_mac_rx_descs_refill(struct emac_adapter *adpt,
 
 		curr_rxbuf->dma_addr =
 			dma_map_single(adpt->netdev->dev.parent, skb->data,
-				       curr_rxbuf->length, DMA_FROM_DEVICE);
+				       adpt->rxbuf_size, DMA_FROM_DEVICE);
+
 		ret = dma_mapping_error(adpt->netdev->dev.parent,
 					curr_rxbuf->dma_addr);
 		if (ret) {
diff --git a/drivers/net/ethernet/qualcomm/emac/emac.c b/drivers/net/ethernet/qualcomm/emac/emac.c
index 60850bfa3d32..759543512117 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac.c
+++ b/drivers/net/ethernet/qualcomm/emac/emac.c
@@ -443,6 +443,9 @@ static void emac_init_adapter(struct emac_adapter *adpt)
 
 	/* default to automatic flow control */
 	adpt->automatic = true;
+
+	/* Disable single-pause-frame mode by default */
+	adpt->single_pause_mode = false;
 }
 
 /* Get the clock */
diff --git a/drivers/net/ethernet/qualcomm/emac/emac.h b/drivers/net/ethernet/qualcomm/emac/emac.h
index 8ee4ec6aef2e..d7c9f44209d4 100644
--- a/drivers/net/ethernet/qualcomm/emac/emac.h
+++ b/drivers/net/ethernet/qualcomm/emac/emac.h
@@ -363,6 +363,9 @@ struct emac_adapter {
 	bool				tx_flow_control;
 	bool				rx_flow_control;
 
+	/* True == use single-pause-frame mode. */
+	bool				single_pause_mode;
+
 	/* Ring parameter */
 	u8				tpd_burst;
 	u8				rfd_burst;
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
index 98f22551eb45..1e33aea59f50 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
@@ -51,10 +51,7 @@ struct rmnet_walk_data {
 
 static int rmnet_is_real_dev_registered(const struct net_device *real_dev)
 {
-	rx_handler_func_t *rx_handler;
-
-	rx_handler = rcu_dereference(real_dev->rx_handler);
-	return (rx_handler == rmnet_rx_handler);
+	return rcu_access_pointer(real_dev->rx_handler) == rmnet_rx_handler;
 }
 
 /* Needs rtnl lock */
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
index 557c9bf1a469..86b8c758f94e 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c
@@ -84,6 +84,10 @@ struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb)
 	if (((int)skb->len - (int)packet_len) < 0)
 		return NULL;
 
+	/* Some hardware can send us empty frames. Catch them */
+	if (ntohs(maph->pkt_len) == 0)
+		return NULL;
+
 	skbn = alloc_skb(packet_len + RMNET_MAP_DEAGGR_SPACING, GFP_ATOMIC);
 	if (!skbn)
 		return NULL;
@@ -94,11 +98,5 @@ struct sk_buff *rmnet_map_deaggregate(struct sk_buff *skb)
 	memcpy(skbn->data, skb->data, packet_len);
 	skb_pull(skb, packet_len);
 
-	/* Some hardware can send us empty frames. Catch them */
-	if (ntohs(maph->pkt_len) == 0) {
-		kfree_skb(skb);
-		return NULL;
-	}
-
 	return skbn;
 }
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index ca22f2898664..d24b47b8e0b2 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -2135,11 +2135,12 @@ static int rtl8139_poll(struct napi_struct *napi, int budget)
 	if (likely(RTL_R16(IntrStatus) & RxAckBits))
 		work_done += rtl8139_rx(dev, tp, budget);
 
-	if (work_done < budget && napi_complete_done(napi, work_done)) {
+	if (work_done < budget) {
 		unsigned long flags;
 
 		spin_lock_irqsave(&tp->lock, flags);
-		RTL_W16_F(IntrMask, rtl8139_intr_mask);
+		if (napi_complete_done(napi, work_done))
+			RTL_W16_F(IntrMask, rtl8139_intr_mask);
 		spin_unlock_irqrestore(&tp->lock, flags);
 	}
 	spin_unlock(&tp->rx_lock);
diff --git a/drivers/net/ethernet/realtek/atp.h b/drivers/net/ethernet/realtek/atp.h
index 32497f0e537c..63f0d2d0e87b 100644
--- a/drivers/net/ethernet/realtek/atp.h
+++ b/drivers/net/ethernet/realtek/atp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Linux header file for the ATP pocket ethernet adapter. */
 /* v1.09 8/9/2000 becker@scyld.com. */
 
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index e03fcf914690..a3c949ea7d1a 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -8491,8 +8491,6 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		rtl8168_driver_start(tp);
 	}
 
-	device_set_wakeup_enable(&pdev->dev, tp->features & RTL_FEATURE_WOL);
-
 	if (pci_dev_run_wake(pdev))
 		pm_runtime_put_noidle(&pdev->dev);
 
diff --git a/drivers/net/ethernet/rocker/rocker_tlv.h b/drivers/net/ethernet/rocker/rocker_tlv.h
index a63ef82e7c72..dfae3c9d57c6 100644
--- a/drivers/net/ethernet/rocker/rocker_tlv.h
+++ b/drivers/net/ethernet/rocker/rocker_tlv.h
@@ -139,40 +139,52 @@ rocker_tlv_start(struct rocker_desc_info *desc_info)
 int rocker_tlv_put(struct rocker_desc_info *desc_info,
 		   int attrtype, int attrlen, const void *data);
 
-static inline int rocker_tlv_put_u8(struct rocker_desc_info *desc_info,
-				    int attrtype, u8 value)
+static inline int
+rocker_tlv_put_u8(struct rocker_desc_info *desc_info, int attrtype, u8 value)
 {
-	return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &value);
+	u8 tmp = value; /* work around GCC PR81715 */
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u8), &tmp);
 }
 
-static inline int rocker_tlv_put_u16(struct rocker_desc_info *desc_info,
-				     int attrtype, u16 value)
+static inline int
+rocker_tlv_put_u16(struct rocker_desc_info *desc_info, int attrtype, u16 value)
 {
-	return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &value);
+	u16 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u16), &tmp);
 }
 
-static inline int rocker_tlv_put_be16(struct rocker_desc_info *desc_info,
-				      int attrtype, __be16 value)
+static inline int
+rocker_tlv_put_be16(struct rocker_desc_info *desc_info, int attrtype, __be16 value)
 {
-	return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &value);
+	__be16 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(__be16), &tmp);
 }
 
-static inline int rocker_tlv_put_u32(struct rocker_desc_info *desc_info,
-				     int attrtype, u32 value)
+static inline int
+rocker_tlv_put_u32(struct rocker_desc_info *desc_info, int attrtype, u32 value)
 {
-	return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &value);
+	u32 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u32), &tmp);
 }
 
-static inline int rocker_tlv_put_be32(struct rocker_desc_info *desc_info,
-				      int attrtype, __be32 value)
+static inline int
+rocker_tlv_put_be32(struct rocker_desc_info *desc_info, int attrtype, __be32 value)
 {
-	return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &value);
+	__be32 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(__be32), &tmp);
 }
 
-static inline int rocker_tlv_put_u64(struct rocker_desc_info *desc_info,
-				     int attrtype, u64 value)
+static inline int
+rocker_tlv_put_u64(struct rocker_desc_info *desc_info, int attrtype, u64 value)
 {
-	return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &value);
+	u64 tmp = value;
+
+	return rocker_tlv_put(desc_info, attrtype, sizeof(u64), &tmp);
 }
 
 static inline struct rocker_tlv *
diff --git a/drivers/net/ethernet/seeq/sgiseeq.h b/drivers/net/ethernet/seeq/sgiseeq.h
index 2211e2987a8d..2f65c55608df 100644
--- a/drivers/net/ethernet/seeq/sgiseeq.h
+++ b/drivers/net/ethernet/seeq/sgiseeq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sgiseeq.h: Defines for the Seeq8003 ethernet controller.
  *
diff --git a/drivers/net/ethernet/sfc/Makefile b/drivers/net/ethernet/sfc/Makefile
index 520cfcc17785..3bac58d0f88b 100644
--- a/drivers/net/ethernet/sfc/Makefile
+++ b/drivers/net/ethernet/sfc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 sfc-y			+= efx.o nic.o farch.o siena.o ef10.o tx.o rx.o \
 			   selftest.o ethtool.o ptp.o tx_tso.o \
 			   mcdi.o mcdi_port.o mcdi_mon.o
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 13f72f5b18d2..a95a46bcd339 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -2073,7 +2073,7 @@ static irqreturn_t efx_ef10_msi_interrupt(int irq, void *dev_id)
 	netif_vdbg(efx, intr, efx->net_dev,
 		   "IRQ %d on CPU %d\n", irq, raw_smp_processor_id());
 
-	if (likely(ACCESS_ONCE(efx->irq_soft_enabled))) {
+	if (likely(READ_ONCE(efx->irq_soft_enabled))) {
 		/* Note test interrupts */
 		if (context->index == efx->irq_level)
 			efx->last_irq_cpu = raw_smp_processor_id();
@@ -2088,7 +2088,7 @@ static irqreturn_t efx_ef10_msi_interrupt(int irq, void *dev_id)
 static irqreturn_t efx_ef10_legacy_interrupt(int irq, void *dev_id)
 {
 	struct efx_nic *efx = dev_id;
-	bool soft_enabled = ACCESS_ONCE(efx->irq_soft_enabled);
+	bool soft_enabled = READ_ONCE(efx->irq_soft_enabled);
 	struct efx_channel *channel;
 	efx_dword_t reg;
 	u32 queues;
@@ -3291,7 +3291,7 @@ static int efx_ef10_handle_rx_event(struct efx_channel *channel,
 	bool rx_cont;
 	u16 flags = 0;
 
-	if (unlikely(ACCESS_ONCE(efx->reset_pending)))
+	if (unlikely(READ_ONCE(efx->reset_pending)))
 		return 0;
 
 	/* Basic packet information */
@@ -3428,7 +3428,7 @@ efx_ef10_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 	unsigned int tx_ev_q_label;
 	int tx_descs = 0;
 
-	if (unlikely(ACCESS_ONCE(efx->reset_pending)))
+	if (unlikely(READ_ONCE(efx->reset_pending)))
 		return 0;
 
 	if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_TX_DROP_EVENT)))
@@ -5316,7 +5316,7 @@ static void efx_ef10_filter_remove_old(struct efx_nic *efx)
 	int i;
 
 	for (i = 0; i < HUNT_FILTER_TBL_ROWS; i++) {
-		if (ACCESS_ONCE(table->entry[i].spec) &
+		if (READ_ONCE(table->entry[i].spec) &
 		    EFX_EF10_FILTER_FLAG_AUTO_OLD) {
 			rc = efx_ef10_filter_remove_internal(efx,
 					1U << EFX_FILTER_PRI_AUTO, i, true);
diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index b9cb697b2818..016616a63880 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -2809,7 +2809,7 @@ static void efx_reset_work(struct work_struct *data)
 	unsigned long pending;
 	enum reset_type method;
 
-	pending = ACCESS_ONCE(efx->reset_pending);
+	pending = READ_ONCE(efx->reset_pending);
 	method = fls(pending) - 1;
 
 	if (method == RESET_TYPE_MC_BIST)
@@ -2874,7 +2874,7 @@ void efx_schedule_reset(struct efx_nic *efx, enum reset_type type)
 	/* If we're not READY then just leave the flags set as the cue
 	 * to abort probing or reschedule the reset later.
 	 */
-	if (ACCESS_ONCE(efx->state) != STATE_READY)
+	if (READ_ONCE(efx->state) != STATE_READY)
 		return;
 
 	/* efx_process_channel() will no longer read events once a
diff --git a/drivers/net/ethernet/sfc/falcon/Makefile b/drivers/net/ethernet/sfc/falcon/Makefile
index aa1b45979ca4..39448e5b7f1e 100644
--- a/drivers/net/ethernet/sfc/falcon/Makefile
+++ b/drivers/net/ethernet/sfc/falcon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 sfc-falcon-y		+= efx.o nic.o farch.o falcon.o tx.o rx.o selftest.o \
 			   ethtool.o qt202x_phy.o mdio_10g.o tenxpress.o \
 			   txc43128_phy.o falcon_boards.o
diff --git a/drivers/net/ethernet/sfc/falcon/efx.c b/drivers/net/ethernet/sfc/falcon/efx.c
index 29614da91cbf..7263275fde4a 100644
--- a/drivers/net/ethernet/sfc/falcon/efx.c
+++ b/drivers/net/ethernet/sfc/falcon/efx.c
@@ -2545,7 +2545,7 @@ static void ef4_reset_work(struct work_struct *data)
 	unsigned long pending;
 	enum reset_type method;
 
-	pending = ACCESS_ONCE(efx->reset_pending);
+	pending = READ_ONCE(efx->reset_pending);
 	method = fls(pending) - 1;
 
 	if ((method == RESET_TYPE_RECOVER_OR_DISABLE ||
@@ -2605,7 +2605,7 @@ void ef4_schedule_reset(struct ef4_nic *efx, enum reset_type type)
 	/* If we're not READY then just leave the flags set as the cue
 	 * to abort probing or reschedule the reset later.
 	 */
-	if (ACCESS_ONCE(efx->state) != STATE_READY)
+	if (READ_ONCE(efx->state) != STATE_READY)
 		return;
 
 	queue_work(reset_workqueue, &efx->reset_work);
diff --git a/drivers/net/ethernet/sfc/falcon/falcon.c b/drivers/net/ethernet/sfc/falcon/falcon.c
index 93c713c1f627..cd8bb472d758 100644
--- a/drivers/net/ethernet/sfc/falcon/falcon.c
+++ b/drivers/net/ethernet/sfc/falcon/falcon.c
@@ -452,7 +452,7 @@ static irqreturn_t falcon_legacy_interrupt_a1(int irq, void *dev_id)
 		   "IRQ %d on CPU %d status " EF4_OWORD_FMT "\n",
 		   irq, raw_smp_processor_id(), EF4_OWORD_VAL(*int_ker));
 
-	if (!likely(ACCESS_ONCE(efx->irq_soft_enabled)))
+	if (!likely(READ_ONCE(efx->irq_soft_enabled)))
 		return IRQ_HANDLED;
 
 	/* Check to see if we have a serious error condition */
@@ -1372,7 +1372,7 @@ static void falcon_reconfigure_mac_wrapper(struct ef4_nic *efx)
 	ef4_oword_t reg;
 	int link_speed, isolate;
 
-	isolate = !!ACCESS_ONCE(efx->reset_pending);
+	isolate = !!READ_ONCE(efx->reset_pending);
 
 	switch (link_state->speed) {
 	case 10000: link_speed = 3; break;
diff --git a/drivers/net/ethernet/sfc/falcon/farch.c b/drivers/net/ethernet/sfc/falcon/farch.c
index 05916c710d8c..494884f6af4a 100644
--- a/drivers/net/ethernet/sfc/falcon/farch.c
+++ b/drivers/net/ethernet/sfc/falcon/farch.c
@@ -834,7 +834,7 @@ ef4_farch_handle_tx_event(struct ef4_channel *channel, ef4_qword_t *event)
 	struct ef4_nic *efx = channel->efx;
 	int tx_packets = 0;
 
-	if (unlikely(ACCESS_ONCE(efx->reset_pending)))
+	if (unlikely(READ_ONCE(efx->reset_pending)))
 		return 0;
 
 	if (likely(EF4_QWORD_FIELD(*event, FSF_AZ_TX_EV_COMP))) {
@@ -990,7 +990,7 @@ ef4_farch_handle_rx_event(struct ef4_channel *channel, const ef4_qword_t *event)
 	struct ef4_rx_queue *rx_queue;
 	struct ef4_nic *efx = channel->efx;
 
-	if (unlikely(ACCESS_ONCE(efx->reset_pending)))
+	if (unlikely(READ_ONCE(efx->reset_pending)))
 		return;
 
 	rx_ev_cont = EF4_QWORD_FIELD(*event, FSF_AZ_RX_EV_JUMBO_CONT);
@@ -1504,7 +1504,7 @@ irqreturn_t ef4_farch_fatal_interrupt(struct ef4_nic *efx)
 irqreturn_t ef4_farch_legacy_interrupt(int irq, void *dev_id)
 {
 	struct ef4_nic *efx = dev_id;
-	bool soft_enabled = ACCESS_ONCE(efx->irq_soft_enabled);
+	bool soft_enabled = READ_ONCE(efx->irq_soft_enabled);
 	ef4_oword_t *int_ker = efx->irq_status.addr;
 	irqreturn_t result = IRQ_NONE;
 	struct ef4_channel *channel;
@@ -1596,7 +1596,7 @@ irqreturn_t ef4_farch_msi_interrupt(int irq, void *dev_id)
 		   "IRQ %d on CPU %d status " EF4_OWORD_FMT "\n",
 		   irq, raw_smp_processor_id(), EF4_OWORD_VAL(*int_ker));
 
-	if (!likely(ACCESS_ONCE(efx->irq_soft_enabled)))
+	if (!likely(READ_ONCE(efx->irq_soft_enabled)))
 		return IRQ_HANDLED;
 
 	/* Handle non-event-queue sources */
diff --git a/drivers/net/ethernet/sfc/falcon/nic.h b/drivers/net/ethernet/sfc/falcon/nic.h
index a4c4592f6023..54ca457cdb15 100644
--- a/drivers/net/ethernet/sfc/falcon/nic.h
+++ b/drivers/net/ethernet/sfc/falcon/nic.h
@@ -83,7 +83,7 @@ static inline struct ef4_tx_queue *ef4_tx_queue_partner(struct ef4_tx_queue *tx_
 static inline bool __ef4_nic_tx_is_empty(struct ef4_tx_queue *tx_queue,
 					 unsigned int write_count)
 {
-	unsigned int empty_read_count = ACCESS_ONCE(tx_queue->empty_read_count);
+	unsigned int empty_read_count = READ_ONCE(tx_queue->empty_read_count);
 
 	if (empty_read_count == 0)
 		return false;
@@ -464,11 +464,11 @@ irqreturn_t ef4_farch_fatal_interrupt(struct ef4_nic *efx);
 
 static inline int ef4_nic_event_test_irq_cpu(struct ef4_channel *channel)
 {
-	return ACCESS_ONCE(channel->event_test_cpu);
+	return READ_ONCE(channel->event_test_cpu);
 }
 static inline int ef4_nic_irq_test_irq_cpu(struct ef4_nic *efx)
 {
-	return ACCESS_ONCE(efx->last_irq_cpu);
+	return READ_ONCE(efx->last_irq_cpu);
 }
 
 /* Global Resources */
diff --git a/drivers/net/ethernet/sfc/falcon/tx.c b/drivers/net/ethernet/sfc/falcon/tx.c
index 6a75f4140a4b..6486814e97dc 100644
--- a/drivers/net/ethernet/sfc/falcon/tx.c
+++ b/drivers/net/ethernet/sfc/falcon/tx.c
@@ -134,8 +134,8 @@ static void ef4_tx_maybe_stop_queue(struct ef4_tx_queue *txq1)
 	 */
 	netif_tx_stop_queue(txq1->core_txq);
 	smp_mb();
-	txq1->old_read_count = ACCESS_ONCE(txq1->read_count);
-	txq2->old_read_count = ACCESS_ONCE(txq2->read_count);
+	txq1->old_read_count = READ_ONCE(txq1->read_count);
+	txq2->old_read_count = READ_ONCE(txq2->read_count);
 
 	fill_level = max(txq1->insert_count - txq1->old_read_count,
 			 txq2->insert_count - txq2->old_read_count);
@@ -524,7 +524,7 @@ void ef4_xmit_done(struct ef4_tx_queue *tx_queue, unsigned int index)
 
 	/* Check whether the hardware queue is now empty */
 	if ((int)(tx_queue->read_count - tx_queue->old_write_count) >= 0) {
-		tx_queue->old_write_count = ACCESS_ONCE(tx_queue->write_count);
+		tx_queue->old_write_count = READ_ONCE(tx_queue->write_count);
 		if (tx_queue->read_count == tx_queue->old_write_count) {
 			smp_mb();
 			tx_queue->empty_read_count =
diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c
index ba45150f53c7..86454d25a405 100644
--- a/drivers/net/ethernet/sfc/farch.c
+++ b/drivers/net/ethernet/sfc/farch.c
@@ -827,7 +827,7 @@ efx_farch_handle_tx_event(struct efx_channel *channel, efx_qword_t *event)
 	struct efx_nic *efx = channel->efx;
 	int tx_packets = 0;
 
-	if (unlikely(ACCESS_ONCE(efx->reset_pending)))
+	if (unlikely(READ_ONCE(efx->reset_pending)))
 		return 0;
 
 	if (likely(EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_COMP))) {
@@ -979,7 +979,7 @@ efx_farch_handle_rx_event(struct efx_channel *channel, const efx_qword_t *event)
 	struct efx_rx_queue *rx_queue;
 	struct efx_nic *efx = channel->efx;
 
-	if (unlikely(ACCESS_ONCE(efx->reset_pending)))
+	if (unlikely(READ_ONCE(efx->reset_pending)))
 		return;
 
 	rx_ev_cont = EFX_QWORD_FIELD(*event, FSF_AZ_RX_EV_JUMBO_CONT);
@@ -1520,7 +1520,7 @@ irqreturn_t efx_farch_fatal_interrupt(struct efx_nic *efx)
 irqreturn_t efx_farch_legacy_interrupt(int irq, void *dev_id)
 {
 	struct efx_nic *efx = dev_id;
-	bool soft_enabled = ACCESS_ONCE(efx->irq_soft_enabled);
+	bool soft_enabled = READ_ONCE(efx->irq_soft_enabled);
 	efx_oword_t *int_ker = efx->irq_status.addr;
 	irqreturn_t result = IRQ_NONE;
 	struct efx_channel *channel;
@@ -1612,7 +1612,7 @@ irqreturn_t efx_farch_msi_interrupt(int irq, void *dev_id)
 		   "IRQ %d on CPU %d status " EFX_OWORD_FMT "\n",
 		   irq, raw_smp_processor_id(), EFX_OWORD_VAL(*int_ker));
 
-	if (!likely(ACCESS_ONCE(efx->irq_soft_enabled)))
+	if (!likely(READ_ONCE(efx->irq_soft_enabled)))
 		return IRQ_HANDLED;
 
 	/* Handle non-event-queue sources */
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 4d7fb8af880d..7b51b6371724 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -81,7 +81,7 @@ static struct efx_tx_queue *efx_tx_queue_partner(struct efx_tx_queue *tx_queue)
 static inline bool __efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue,
 					 unsigned int write_count)
 {
-	unsigned int empty_read_count = ACCESS_ONCE(tx_queue->empty_read_count);
+	unsigned int empty_read_count = READ_ONCE(tx_queue->empty_read_count);
 
 	if (empty_read_count == 0)
 		return false;
@@ -617,11 +617,11 @@ irqreturn_t efx_farch_fatal_interrupt(struct efx_nic *efx);
 
 static inline int efx_nic_event_test_irq_cpu(struct efx_channel *channel)
 {
-	return ACCESS_ONCE(channel->event_test_cpu);
+	return READ_ONCE(channel->event_test_cpu);
 }
 static inline int efx_nic_irq_test_irq_cpu(struct efx_nic *efx)
 {
-	return ACCESS_ONCE(efx->last_irq_cpu);
+	return READ_ONCE(efx->last_irq_cpu);
 }
 
 /* Global Resources */
diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
index 60cdb97f58e2..56c2db398def 100644
--- a/drivers/net/ethernet/sfc/ptp.c
+++ b/drivers/net/ethernet/sfc/ptp.c
@@ -658,7 +658,7 @@ static void efx_ptp_send_times(struct efx_nic *efx,
 
 	/* Write host time for specified period or until MC is done */
 	while ((timespec64_compare(&now.ts_real, &limit) < 0) &&
-	       ACCESS_ONCE(*mc_running)) {
+	       READ_ONCE(*mc_running)) {
 		struct timespec64 update_time;
 		unsigned int host_time;
 
@@ -668,7 +668,7 @@ static void efx_ptp_send_times(struct efx_nic *efx,
 		do {
 			pps_get_ts(&now);
 		} while ((timespec64_compare(&now.ts_real, &update_time) < 0) &&
-			 ACCESS_ONCE(*mc_running));
+			 READ_ONCE(*mc_running));
 
 		/* Synchronise NIC with single word of time only */
 		host_time = (now.ts_real.tv_sec << MC_NANOSECOND_BITS |
@@ -832,14 +832,14 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
 		       ptp->start.dma_addr);
 
 	/* Clear flag that signals MC ready */
-	ACCESS_ONCE(*start) = 0;
+	WRITE_ONCE(*start, 0);
 	rc = efx_mcdi_rpc_start(efx, MC_CMD_PTP, synch_buf,
 				MC_CMD_PTP_IN_SYNCHRONIZE_LEN);
 	EFX_WARN_ON_ONCE_PARANOID(rc);
 
 	/* Wait for start from MCDI (or timeout) */
 	timeout = jiffies + msecs_to_jiffies(MAX_SYNCHRONISE_WAIT_MS);
-	while (!ACCESS_ONCE(*start) && (time_before(jiffies, timeout))) {
+	while (!READ_ONCE(*start) && (time_before(jiffies, timeout))) {
 		udelay(20);	/* Usually start MCDI execution quickly */
 		loops++;
 	}
@@ -849,7 +849,7 @@ static int efx_ptp_synchronize(struct efx_nic *efx, unsigned int num_readings)
 	if (!time_before(jiffies, timeout))
 		++ptp->sync_timeouts;
 
-	if (ACCESS_ONCE(*start))
+	if (READ_ONCE(*start))
 		efx_ptp_send_times(efx, &last_time);
 
 	/* Collect results */
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 32bf1fecf864..efb66ea21f27 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -136,8 +136,8 @@ static void efx_tx_maybe_stop_queue(struct efx_tx_queue *txq1)
 	 */
 	netif_tx_stop_queue(txq1->core_txq);
 	smp_mb();
-	txq1->old_read_count = ACCESS_ONCE(txq1->read_count);
-	txq2->old_read_count = ACCESS_ONCE(txq2->read_count);
+	txq1->old_read_count = READ_ONCE(txq1->read_count);
+	txq2->old_read_count = READ_ONCE(txq2->read_count);
 
 	fill_level = max(txq1->insert_count - txq1->old_read_count,
 			 txq2->insert_count - txq2->old_read_count);
@@ -752,7 +752,7 @@ void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index)
 
 	/* Check whether the hardware queue is now empty */
 	if ((int)(tx_queue->read_count - tx_queue->old_write_count) >= 0) {
-		tx_queue->old_write_count = ACCESS_ONCE(tx_queue->write_count);
+		tx_queue->old_write_count = READ_ONCE(tx_queue->write_count);
 		if (tx_queue->read_count == tx_queue->old_write_count) {
 			smp_mb();
 			tx_queue->empty_read_count =
diff --git a/drivers/net/ethernet/sis/sis900.h b/drivers/net/ethernet/sis/sis900.h
index f0da3dc52c01..66e4bf38770f 100644
--- a/drivers/net/ethernet/sis/sis900.h
+++ b/drivers/net/ethernet/sis/sis900.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sis900.h Definitions for SiS ethernet controllers including 7014/7016 and 900
  * Copyright 1999 Silicon Integrated System Corporation
  * References:
diff --git a/drivers/net/ethernet/smsc/Makefile b/drivers/net/ethernet/smsc/Makefile
index f3438dec9d90..4105912b1629 100644
--- a/drivers/net/ethernet/smsc/Makefile
+++ b/drivers/net/ethernet/smsc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the SMSC network device drivers.
 #
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 0b6a39b003a4..012fb66eed8d 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2595,6 +2595,11 @@ static int smsc911x_suspend(struct device *dev)
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct smsc911x_data *pdata = netdev_priv(ndev);
 
+	if (netif_running(ndev)) {
+		netif_stop_queue(ndev);
+		netif_device_detach(ndev);
+	}
+
 	/* enable wake on LAN, energy detection and the external PME
 	 * signal. */
 	smsc911x_reg_write(pdata, PMT_CTRL,
@@ -2628,7 +2633,15 @@ static int smsc911x_resume(struct device *dev)
 	while (!(smsc911x_reg_read(pdata, PMT_CTRL) & PMT_CTRL_READY_) && --to)
 		udelay(1000);
 
-	return (to == 0) ? -EIO : 0;
+	if (to == 0)
+		return -EIO;
+
+	if (netif_running(ndev)) {
+		netif_device_attach(ndev);
+		netif_start_queue(ndev);
+	}
+
+	return 0;
 }
 
 static const struct dev_pm_ops smsc911x_pm_ops = {
diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile b/drivers/net/ethernet/stmicro/stmmac/Makefile
index 238307fadcdb..ff3f83b86d10 100644
--- a/drivers/net/ethernet/stmicro/stmmac/Makefile
+++ b/drivers/net/ethernet/stmicro/stmmac/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_STMMAC_ETH) += stmmac.o
 stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o	\
 	      chain_mode.o dwmac_lib.o dwmac1000_core.o dwmac1000_dma.o	\
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
index dd6a2f9791cc..3256e5cbad27 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c
@@ -74,7 +74,7 @@ static int dwc_eth_dwmac_config_dt(struct platform_device *pdev,
 		plat_dat->axi->axi_wr_osr_lmt--;
 	}
 
-	if (of_property_read_u32(np, "read,read-requests",
+	if (of_property_read_u32(np, "snps,read-requests",
 				 &plat_dat->axi->axi_rd_osr_lmt)) {
 		/**
 		 * Since the register has a reset value of 1, if property
@@ -511,6 +511,7 @@ static struct platform_driver dwc_eth_dwmac_driver = {
 	.remove = dwc_eth_dwmac_remove,
 	.driver = {
 		.name           = "dwc-eth-dwmac",
+		.pm             = &stmmac_pltfr_pm_ops,
 		.of_match_table = dwc_eth_dwmac_match,
 	},
 };
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 99823f54696a..13133b30b575 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -83,6 +83,117 @@ struct rk_priv_data {
 	(((tx) ? soc##_GMAC_TXCLK_DLY_ENABLE : soc##_GMAC_TXCLK_DLY_DISABLE) | \
 	 ((rx) ? soc##_GMAC_RXCLK_DLY_ENABLE : soc##_GMAC_RXCLK_DLY_DISABLE))
 
+#define RK3128_GRF_MAC_CON0	0x0168
+#define RK3128_GRF_MAC_CON1	0x016c
+
+/* RK3128_GRF_MAC_CON0 */
+#define RK3128_GMAC_TXCLK_DLY_ENABLE   GRF_BIT(14)
+#define RK3128_GMAC_TXCLK_DLY_DISABLE  GRF_CLR_BIT(14)
+#define RK3128_GMAC_RXCLK_DLY_ENABLE   GRF_BIT(15)
+#define RK3128_GMAC_RXCLK_DLY_DISABLE  GRF_CLR_BIT(15)
+#define RK3128_GMAC_CLK_RX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 7)
+#define RK3128_GMAC_CLK_TX_DL_CFG(val) HIWORD_UPDATE(val, 0x7F, 0)
+
+/* RK3128_GRF_MAC_CON1 */
+#define RK3128_GMAC_PHY_INTF_SEL_RGMII	\
+		(GRF_BIT(6) | GRF_CLR_BIT(7) | GRF_CLR_BIT(8))
+#define RK3128_GMAC_PHY_INTF_SEL_RMII	\
+		(GRF_CLR_BIT(6) | GRF_CLR_BIT(7) | GRF_BIT(8))
+#define RK3128_GMAC_FLOW_CTRL          GRF_BIT(9)
+#define RK3128_GMAC_FLOW_CTRL_CLR      GRF_CLR_BIT(9)
+#define RK3128_GMAC_SPEED_10M          GRF_CLR_BIT(10)
+#define RK3128_GMAC_SPEED_100M         GRF_BIT(10)
+#define RK3128_GMAC_RMII_CLK_25M       GRF_BIT(11)
+#define RK3128_GMAC_RMII_CLK_2_5M      GRF_CLR_BIT(11)
+#define RK3128_GMAC_CLK_125M           (GRF_CLR_BIT(12) | GRF_CLR_BIT(13))
+#define RK3128_GMAC_CLK_25M            (GRF_BIT(12) | GRF_BIT(13))
+#define RK3128_GMAC_CLK_2_5M           (GRF_CLR_BIT(12) | GRF_BIT(13))
+#define RK3128_GMAC_RMII_MODE          GRF_BIT(14)
+#define RK3128_GMAC_RMII_MODE_CLR      GRF_CLR_BIT(14)
+
+static void rk3128_set_to_rgmii(struct rk_priv_data *bsp_priv,
+				int tx_delay, int rx_delay)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "Missing rockchip,grf property\n");
+		return;
+	}
+
+	regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+		     RK3128_GMAC_PHY_INTF_SEL_RGMII |
+		     RK3128_GMAC_RMII_MODE_CLR);
+	regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON0,
+		     DELAY_ENABLE(RK3128, tx_delay, rx_delay) |
+		     RK3128_GMAC_CLK_RX_DL_CFG(rx_delay) |
+		     RK3128_GMAC_CLK_TX_DL_CFG(tx_delay));
+}
+
+static void rk3128_set_to_rmii(struct rk_priv_data *bsp_priv)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "Missing rockchip,grf property\n");
+		return;
+	}
+
+	regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+		     RK3128_GMAC_PHY_INTF_SEL_RMII | RK3128_GMAC_RMII_MODE);
+}
+
+static void rk3128_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "Missing rockchip,grf property\n");
+		return;
+	}
+
+	if (speed == 10)
+		regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+			     RK3128_GMAC_CLK_2_5M);
+	else if (speed == 100)
+		regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+			     RK3128_GMAC_CLK_25M);
+	else if (speed == 1000)
+		regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+			     RK3128_GMAC_CLK_125M);
+	else
+		dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
+}
+
+static void rk3128_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "Missing rockchip,grf property\n");
+		return;
+	}
+
+	if (speed == 10) {
+		regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+			     RK3128_GMAC_RMII_CLK_2_5M |
+			     RK3128_GMAC_SPEED_10M);
+	} else if (speed == 100) {
+		regmap_write(bsp_priv->grf, RK3128_GRF_MAC_CON1,
+			     RK3128_GMAC_RMII_CLK_25M |
+			     RK3128_GMAC_SPEED_100M);
+	} else {
+		dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
+	}
+}
+
+static const struct rk_gmac_ops rk3128_ops = {
+	.set_to_rgmii = rk3128_set_to_rgmii,
+	.set_to_rmii = rk3128_set_to_rmii,
+	.set_rgmii_speed = rk3128_set_rgmii_speed,
+	.set_rmii_speed = rk3128_set_rmii_speed,
+};
+
 #define RK3228_GRF_MAC_CON0	0x0900
 #define RK3228_GRF_MAC_CON1	0x0904
 
@@ -1313,6 +1424,7 @@ static int rk_gmac_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(rk_gmac_pm_ops, rk_gmac_suspend, rk_gmac_resume);
 
 static const struct of_device_id rk_gmac_dwmac_match[] = {
+	{ .compatible = "rockchip,rk3128-gmac", .data = &rk3128_ops },
 	{ .compatible = "rockchip,rk3228-gmac", .data = &rk3228_ops },
 	{ .compatible = "rockchip,rk3288-gmac", .data = &rk3288_ops },
 	{ .compatible = "rockchip,rk3328-gmac", .data = &rk3328_ops },
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index c4407e8e39a3..2f7d7ec59962 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -296,6 +296,7 @@ static void dwmac4_pmt(struct mac_device_info *hw, unsigned long mode)
 {
 	void __iomem *ioaddr = hw->pcsr;
 	unsigned int pmt = 0;
+	u32 config;
 
 	if (mode & WAKE_MAGIC) {
 		pr_debug("GMAC: WOL Magic frame\n");
@@ -306,6 +307,12 @@ static void dwmac4_pmt(struct mac_device_info *hw, unsigned long mode)
 		pmt |= power_down | global_unicast | wake_up_frame_en;
 	}
 
+	if (pmt) {
+		/* The receiver must be enabled for WOL before powering down */
+		config = readl(ioaddr + GMAC_CONFIG);
+		config |= GMAC_CONFIG_RE;
+		writel(config, ioaddr + GMAC_CONFIG);
+	}
 	writel(pmt, ioaddr + GMAC_PMT);
 }
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
index e0ef02f9503b..4b286e27c4ca 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c
@@ -275,7 +275,7 @@ static int dwmac4_wrback_get_rx_timestamp_status(void *desc, u32 ats)
 					goto exit;
 				i++;
 
-			} while ((ret == 1) || (i < 10));
+			} while ((ret == 1) && (i < 10));
 
 			if (i == 10)
 				ret = -EBUSY;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
index 67af0bdd7f10..7516ca210855 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c
@@ -34,7 +34,7 @@ int dwmac_dma_reset(void __iomem *ioaddr)
 
 	err = readl_poll_timeout(ioaddr + DMA_BUS_MODE, value,
 				 !(value & DMA_BUS_MODE_SFT_RESET),
-				 100000, 10000);
+				 10000, 100000);
 	if (err)
 		return -EBUSY;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 1763e48c84e2..16bd50929084 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -473,19 +473,18 @@ static void stmmac_get_rx_hwtstamp(struct stmmac_priv *priv, struct dma_desc *p,
 				   struct dma_desc *np, struct sk_buff *skb)
 {
 	struct skb_shared_hwtstamps *shhwtstamp = NULL;
+	struct dma_desc *desc = p;
 	u64 ns;
 
 	if (!priv->hwts_rx_en)
 		return;
+	/* For GMAC4, the valid timestamp is from CTX next desc. */
+	if (priv->plat->has_gmac4)
+		desc = np;
 
 	/* Check if timestamp is available */
-	if (priv->hw->desc->get_rx_timestamp_status(p, priv->adv_ts)) {
-		/* For GMAC4, the valid timestamp is from CTX next desc. */
-		if (priv->plat->has_gmac4)
-			ns = priv->hw->desc->get_timestamp(np, priv->adv_ts);
-		else
-			ns = priv->hw->desc->get_timestamp(p, priv->adv_ts);
-
+	if (priv->hw->desc->get_rx_timestamp_status(desc, priv->adv_ts)) {
+		ns = priv->hw->desc->get_timestamp(desc, priv->adv_ts);
 		netdev_dbg(priv->dev, "get valid RX hw timestamp %llu\n", ns);
 		shhwtstamp = skb_hwtstamps(skb);
 		memset(shhwtstamp, 0, sizeof(struct skb_shared_hwtstamps));
@@ -1800,12 +1799,13 @@ static void stmmac_tx_clean(struct stmmac_priv *priv, u32 queue)
 {
 	struct stmmac_tx_queue *tx_q = &priv->tx_queue[queue];
 	unsigned int bytes_compl = 0, pkts_compl = 0;
-	unsigned int entry = tx_q->dirty_tx;
+	unsigned int entry;
 
 	netif_tx_lock(priv->dev);
 
 	priv->xstats.tx_clean++;
 
+	entry = tx_q->dirty_tx;
 	while (entry != tx_q->cur_tx) {
 		struct sk_buff *skb = tx_q->tx_skbuff[entry];
 		struct dma_desc *p;
@@ -3333,6 +3333,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
 				 * them in stmmac_rx_refill() function so that
 				 * device can reuse it.
 				 */
+				dev_kfree_skb_any(rx_q->rx_skbuff[entry]);
 				rx_q->rx_skbuff[entry] = NULL;
 				dma_unmap_single(priv->device,
 						 rx_q->rx_skbuff_dma[entry],
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index a366b3747eeb..195eb7e71473 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -150,6 +150,13 @@ static void stmmac_mtl_setup(struct platform_device *pdev,
 	plat->rx_queues_to_use = 1;
 	plat->tx_queues_to_use = 1;
 
+	/* First Queue must always be in DCB mode. As MTL_QUEUE_DCB = 1 we need
+	 * to always set this, otherwise Queue will be classified as AVB
+	 * (because MTL_QUEUE_AVB = 0).
+	 */
+	plat->rx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
+	plat->tx_queues_cfg[0].mode_to_use = MTL_QUEUE_DCB;
+
 	rx_node = of_parse_phandle(pdev->dev.of_node, "snps,mtl-rx-config", 0);
 	if (!rx_node)
 		return;
@@ -161,8 +168,8 @@ static void stmmac_mtl_setup(struct platform_device *pdev,
 	}
 
 	/* Processing RX queues common config */
-	if (of_property_read_u8(rx_node, "snps,rx-queues-to-use",
-				&plat->rx_queues_to_use))
+	if (of_property_read_u32(rx_node, "snps,rx-queues-to-use",
+				 &plat->rx_queues_to_use))
 		plat->rx_queues_to_use = 1;
 
 	if (of_property_read_bool(rx_node, "snps,rx-sched-sp"))
@@ -184,8 +191,8 @@ static void stmmac_mtl_setup(struct platform_device *pdev,
 		else
 			plat->rx_queues_cfg[queue].mode_to_use = MTL_QUEUE_DCB;
 
-		if (of_property_read_u8(q_node, "snps,map-to-dma-channel",
-					&plat->rx_queues_cfg[queue].chan))
+		if (of_property_read_u32(q_node, "snps,map-to-dma-channel",
+					 &plat->rx_queues_cfg[queue].chan))
 			plat->rx_queues_cfg[queue].chan = queue;
 		/* TODO: Dynamic mapping to be included in the future */
 
@@ -215,8 +222,8 @@ static void stmmac_mtl_setup(struct platform_device *pdev,
 	}
 
 	/* Processing TX queues common config */
-	if (of_property_read_u8(tx_node, "snps,tx-queues-to-use",
-				&plat->tx_queues_to_use))
+	if (of_property_read_u32(tx_node, "snps,tx-queues-to-use",
+				 &plat->tx_queues_to_use))
 		plat->tx_queues_to_use = 1;
 
 	if (of_property_read_bool(tx_node, "snps,tx-sched-wrr"))
@@ -237,8 +244,8 @@ static void stmmac_mtl_setup(struct platform_device *pdev,
 		if (queue >= plat->tx_queues_to_use)
 			break;
 
-		if (of_property_read_u8(q_node, "snps,weight",
-					&plat->tx_queues_cfg[queue].weight))
+		if (of_property_read_u32(q_node, "snps,weight",
+					 &plat->tx_queues_cfg[queue].weight))
 			plat->tx_queues_cfg[queue].weight = 0x10 + queue;
 
 		if (of_property_read_bool(q_node, "snps,dcb-algorithm")) {
@@ -315,6 +322,7 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
 		{ .compatible = "allwinner,sun8i-h3-emac" },
 		{ .compatible = "allwinner,sun8i-v3s-emac" },
 		{ .compatible = "allwinner,sun50i-a64-emac" },
+		{},
 	};
 
 	/* If phy-handle property is passed from DT, use it as the PHY */
diff --git a/drivers/net/ethernet/sun/Makefile b/drivers/net/ethernet/sun/Makefile
index 37855438b3cb..9a5249dee56e 100644
--- a/drivers/net/ethernet/sun/Makefile
+++ b/drivers/net/ethernet/sun/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Sun network device drivers.
 #
diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index 6a4e8e1bbd90..8ab0fb6892d5 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -6245,7 +6245,7 @@ static void niu_get_rx_stats(struct niu *np,
 
 	pkts = dropped = errors = bytes = 0;
 
-	rx_rings = ACCESS_ONCE(np->rx_rings);
+	rx_rings = READ_ONCE(np->rx_rings);
 	if (!rx_rings)
 		goto no_rings;
 
@@ -6276,7 +6276,7 @@ static void niu_get_tx_stats(struct niu *np,
 
 	pkts = errors = bytes = 0;
 
-	tx_rings = ACCESS_ONCE(np->tx_rings);
+	tx_rings = READ_ONCE(np->tx_rings);
 	if (!tx_rings)
 		goto no_rings;
 
diff --git a/drivers/net/ethernet/sun/niu.h b/drivers/net/ethernet/sun/niu.h
index 51e177e1860d..04c215f91fc0 100644
--- a/drivers/net/ethernet/sun/niu.h
+++ b/drivers/net/ethernet/sun/niu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* niu.h: Definitions for Neptune ethernet driver.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/drivers/net/ethernet/sun/sunbmac.h b/drivers/net/ethernet/sun/sunbmac.h
index ee56930475a8..d379bd407eca 100644
--- a/drivers/net/ethernet/sun/sunbmac.h
+++ b/drivers/net/ethernet/sun/sunbmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: sunbmac.h,v 1.7 2000/07/11 22:35:22 davem Exp $
  * sunbmac.h: Defines for the Sun "Big MAC" 100baseT ethernet cards.
  *
diff --git a/drivers/net/ethernet/sun/sungem.h b/drivers/net/ethernet/sun/sungem.h
index 835ce1b3cb9f..626302a9bc89 100644
--- a/drivers/net/ethernet/sun/sungem.h
+++ b/drivers/net/ethernet/sun/sungem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: sungem.h,v 1.10.2.4 2002/03/11 08:54:48 davem Exp $
  * sungem.h: Definitions for Sun GEM ethernet driver.
  *
diff --git a/drivers/net/ethernet/sun/sunhme.h b/drivers/net/ethernet/sun/sunhme.h
index fca1bca7f69d..9118c60c9426 100644
--- a/drivers/net/ethernet/sun/sunhme.h
+++ b/drivers/net/ethernet/sun/sunhme.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: sunhme.h,v 1.33 2001/08/03 06:23:04 davem Exp $
  * sunhme.h: Definitions for Sparc HME/BigMac 10/100baseT ethernet driver.
  *           Also known as the "Happy Meal".
diff --git a/drivers/net/ethernet/sun/sunqe.h b/drivers/net/ethernet/sun/sunqe.h
index ae190b77431b..0daed05b7c83 100644
--- a/drivers/net/ethernet/sun/sunqe.h
+++ b/drivers/net/ethernet/sun/sunqe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: sunqe.h,v 1.13 2000/02/09 11:15:42 davem Exp $
  * sunqe.h: Definitions for the Sun QuadEthernet driver.
  *
diff --git a/drivers/net/ethernet/sun/sunvnet_common.h b/drivers/net/ethernet/sun/sunvnet_common.h
index b20d6fa7ef25..6a4dd1fb19bf 100644
--- a/drivers/net/ethernet/sun/sunvnet_common.h
+++ b/drivers/net/ethernet/sun/sunvnet_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SUNVNETCOMMON_H
 #define _SUNVNETCOMMON_H
 
diff --git a/drivers/net/ethernet/synopsys/Makefile b/drivers/net/ethernet/synopsys/Makefile
index 0ad01916f11e..7a46393abf26 100644
--- a/drivers/net/ethernet/synopsys/Makefile
+++ b/drivers/net/ethernet/synopsys/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Synopsys network device drivers.
 #
diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index 10e6b0ce51ba..0be551de821c 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the TI network device drivers.
 #
diff --git a/drivers/net/ethernet/tile/Makefile b/drivers/net/ethernet/tile/Makefile
index 0ef9eefd3211..3d0ae1f07fc9 100644
--- a/drivers/net/ethernet/tile/Makefile
+++ b/drivers/net/ethernet/tile/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the TILE on-chip networking support.
 #
diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c
index c00102b8145a..b3e5816a4678 100644
--- a/drivers/net/ethernet/tile/tilegx.c
+++ b/drivers/net/ethernet/tile/tilegx.c
@@ -40,7 +40,7 @@
 #include <linux/tcp.h>
 #include <linux/net_tstamp.h>
 #include <linux/ptp_clock_kernel.h>
-#include <linux/tick.h>
+#include <linux/sched/isolation.h>
 
 #include <asm/checksum.h>
 #include <asm/homecache.h>
@@ -2270,8 +2270,8 @@ static int __init tile_net_init_module(void)
 		tile_net_dev_init(name, mac);
 
 	if (!network_cpus_init())
-		cpumask_and(&network_cpus_map, housekeeping_cpumask(),
-			    cpu_online_mask);
+		cpumask_and(&network_cpus_map,
+			    housekeeping_cpumask(HK_FLAG_MISC), cpu_online_mask);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 49ccee4b9aec..56d06282fbde 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -608,9 +608,9 @@ static void tile_net_schedule_egress_timer(struct tile_net_cpu *info)
  * ISSUE: Maybe instead track number of expected completions, and free
  * only that many, resetting to zero if "pending" is ever false.
  */
-static void tile_net_handle_egress_timer(unsigned long arg)
+static void tile_net_handle_egress_timer(struct timer_list *t)
 {
-	struct tile_net_cpu *info = (struct tile_net_cpu *)arg;
+	struct tile_net_cpu *info = from_timer(info, t, egress_timer);
 	struct net_device *dev = info->napi.dev;
 
 	/* The timer is no longer scheduled. */
@@ -1004,9 +1004,8 @@ static void tile_net_register(void *dev_ptr)
 		BUG();
 
 	/* Initialize the egress timer. */
-	init_timer_pinned(&info->egress_timer);
-	info->egress_timer.data = (long)info;
-	info->egress_timer.function = tile_net_handle_egress_timer;
+	timer_setup(&info->egress_timer, tile_net_handle_egress_timer,
+		    TIMER_PINNED);
 
 	u64_stats_init(&info->stats.syncp);
 
diff --git a/drivers/net/ethernet/toshiba/Makefile b/drivers/net/ethernet/toshiba/Makefile
index a5069008435b..f434fd0f429e 100644
--- a/drivers/net/ethernet/toshiba/Makefile
+++ b/drivers/net/ethernet/toshiba/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Toshiba network device drivers.
 #
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index acd29d60174a..83e6f76eb965 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2598,7 +2598,7 @@ static struct platform_driver rhine_driver_platform = {
 	}
 };
 
-static struct dmi_system_id rhine_dmi_table[] __initdata = {
+static const struct dmi_system_id rhine_dmi_table[] __initconst = {
 	{
 		.ident = "EPIA-M",
 		.matches = {
diff --git a/drivers/net/ethernet/xilinx/Makefile b/drivers/net/ethernet/xilinx/Makefile
index 214205e975e3..7d7dc1771423 100644
--- a/drivers/net/ethernet/xilinx/Makefile
+++ b/drivers/net/ethernet/xilinx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Xilink network device drivers.
 #
diff --git a/drivers/net/ethernet/xilinx/ll_temac.h b/drivers/net/ethernet/xilinx/ll_temac.h
index 7d06e3e1abac..107575225383 100644
--- a/drivers/net/ethernet/xilinx/ll_temac.h
+++ b/drivers/net/ethernet/xilinx/ll_temac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef XILINX_LL_TEMAC_H
 #define XILINX_LL_TEMAC_H
diff --git a/drivers/net/ethernet/xilinx/ll_temac_mdio.c b/drivers/net/ethernet/xilinx/ll_temac_mdio.c
index 7714aff78b7d..f5e83ac6f7e2 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_mdio.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_mdio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MDIO bus driver for the Xilinx TEMAC device
  *
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet.h b/drivers/net/ethernet/xilinx/xilinx_axienet.h
index 5ef626331f85..c337400485da 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet.h
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for Xilinx Axi Ethernet device driver.
  *
diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
index 63307ea97846..16c3bfbe1992 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_mdio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MDIO bus driver for the Xilinx Axi Ethernet device
  *
diff --git a/drivers/net/fddi/skfp/Makefile b/drivers/net/fddi/skfp/Makefile
index a957a1c7e5ba..875eac8a76f3 100644
--- a/drivers/net/fddi/skfp/Makefile
+++ b/drivers/net/fddi/skfp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the SysKonnect FDDI PCI adapter driver
 #
diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c
index f6404074b7b0..ed51018a813e 100644
--- a/drivers/net/geneve.c
+++ b/drivers/net/geneve.c
@@ -113,13 +113,7 @@ static void tunnel_id_to_vni(__be64 tun_id, __u8 *vni)
 
 static bool eq_tun_id_and_vni(u8 *tun_id, u8 *vni)
 {
-#ifdef __BIG_ENDIAN
-	return (vni[0] == tun_id[2]) &&
-	       (vni[1] == tun_id[1]) &&
-	       (vni[2] == tun_id[0]);
-#else
 	return !memcmp(vni, &tun_id[5], 3);
-#endif
 }
 
 static sa_family_t geneve_get_sk_family(struct geneve_sock *gs)
diff --git a/drivers/net/hamradio/Makefile b/drivers/net/hamradio/Makefile
index 104096070026..7a1518d763e3 100644
--- a/drivers/net/hamradio/Makefile
+++ b/drivers/net/hamradio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux AX.25 and HFMODEM device drivers.
 #
diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 7a7c5224a336..104f71fa9c5e 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -157,7 +157,7 @@ static struct net_device *yam_devs[NR_PORTS];
 
 static struct yam_mcs *yam_data;
 
-static DEFINE_TIMER(yam_timer, NULL, 0, 0);
+static DEFINE_TIMER(yam_timer, NULL);
 
 /* --------------------------------------------------------------------- */
 
diff --git a/drivers/net/hamradio/z8530.h b/drivers/net/hamradio/z8530.h
index 8bef548572aa..1655901d713b 100644
--- a/drivers/net/hamradio/z8530.h
+++ b/drivers/net/hamradio/z8530.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* 8530 Serial Communications Controller Register definitions */
 #define	FLAG	0x7e
diff --git a/drivers/net/hippi/rrunner.h b/drivers/net/hippi/rrunner.h
index 28169043ae49..87533784604f 100644
--- a/drivers/net/hippi/rrunner.h
+++ b/drivers/net/hippi/rrunner.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RRUNNER_H_
 #define _RRUNNER_H_
 
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index ec546da86683..5176be76ca7d 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -150,6 +150,8 @@ struct netvsc_device_info {
 	u32  num_chn;
 	u32  send_sections;
 	u32  recv_sections;
+	u32  send_section_size;
+	u32  recv_section_size;
 };
 
 enum rndis_device_state {
@@ -204,6 +206,8 @@ int netvsc_recv_callback(struct net_device *net,
 			 const struct ndis_pkt_8021q_info *vlan);
 void netvsc_channel_cb(void *context);
 int netvsc_poll(struct napi_struct *napi, int budget);
+
+void rndis_set_subchannel(struct work_struct *w);
 bool rndis_filter_opened(const struct netvsc_device *nvdev);
 int rndis_filter_open(struct netvsc_device *nvdev);
 int rndis_filter_close(struct netvsc_device *nvdev);
@@ -782,6 +786,7 @@ struct netvsc_device {
 	u32 num_chn;
 
 	atomic_t open_chn;
+	struct work_struct subchan_work;
 	wait_queue_head_t subchan_open;
 
 	struct rndis_device *extension;
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 0062b802676f..8d5077fb0492 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -76,11 +76,9 @@ static struct netvsc_device *alloc_net_device(void)
 	net_device->max_pkt = RNDIS_MAX_PKT_DEFAULT;
 	net_device->pkt_align = RNDIS_PKT_ALIGN_DEFAULT;
 
-	net_device->recv_section_size = NETVSC_RECV_SECTION_SIZE;
-	net_device->send_section_size = NETVSC_SEND_SECTION_SIZE;
-
 	init_completion(&net_device->channel_init_wait);
 	init_waitqueue_head(&net_device->subchan_open);
+	INIT_WORK(&net_device->subchan_work, rndis_set_subchannel);
 
 	return net_device;
 }
@@ -261,7 +259,7 @@ static int netvsc_init_buf(struct hv_device *device,
 	int ret = 0;
 
 	/* Get receive buffer area. */
-	buf_size = device_info->recv_sections * net_device->recv_section_size;
+	buf_size = device_info->recv_sections * device_info->recv_section_size;
 	buf_size = roundup(buf_size, PAGE_SIZE);
 
 	net_device->recv_buf = vzalloc(buf_size);
@@ -343,7 +341,7 @@ static int netvsc_init_buf(struct hv_device *device,
 		goto cleanup;
 
 	/* Now setup the send buffer. */
-	buf_size = device_info->send_sections * net_device->send_section_size;
+	buf_size = device_info->send_sections * device_info->send_section_size;
 	buf_size = round_up(buf_size, PAGE_SIZE);
 
 	net_device->send_buf = vzalloc(buf_size);
@@ -557,6 +555,8 @@ void netvsc_device_remove(struct hv_device *device)
 		= rtnl_dereference(net_device_ctx->nvdev);
 	int i;
 
+	cancel_work_sync(&net_device->subchan_work);
+
 	netvsc_disconnect_vsp(device);
 
 	RCU_INIT_POINTER(net_device_ctx->nvdev, NULL);
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 165ba4b3b423..a32ae02e1b6c 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -49,7 +49,7 @@
 #define NETVSC_MIN_TX_SECTIONS	10
 #define NETVSC_DEFAULT_TX	192	/* ~1M */
 #define NETVSC_MIN_RX_SECTIONS	10	/* ~64K */
-#define NETVSC_DEFAULT_RX	2048	/* ~4M */
+#define NETVSC_DEFAULT_RX	10485   /* Max ~16M */
 
 #define LINKCHANGE_INT (2 * HZ)
 #define VF_TAKEOVER_INT (HZ / 10)
@@ -848,15 +848,14 @@ static int netvsc_set_channels(struct net_device *net,
 	device_info.num_chn = count;
 	device_info.ring_size = ring_size;
 	device_info.send_sections = nvdev->send_section_cnt;
+	device_info.send_section_size = nvdev->send_section_size;
 	device_info.recv_sections = nvdev->recv_section_cnt;
+	device_info.recv_section_size = nvdev->recv_section_size;
 
 	rndis_filter_device_remove(dev, nvdev);
 
 	nvdev = rndis_filter_device_add(dev, &device_info);
-	if (!IS_ERR(nvdev)) {
-		netif_set_real_num_tx_queues(net, nvdev->num_chn);
-		netif_set_real_num_rx_queues(net, nvdev->num_chn);
-	} else {
+	if (IS_ERR(nvdev)) {
 		ret = PTR_ERR(nvdev);
 		device_info.num_chn = orig;
 		nvdev = rndis_filter_device_add(dev, &device_info);
@@ -966,7 +965,9 @@ static int netvsc_change_mtu(struct net_device *ndev, int mtu)
 	device_info.ring_size = ring_size;
 	device_info.num_chn = nvdev->num_chn;
 	device_info.send_sections = nvdev->send_section_cnt;
+	device_info.send_section_size = nvdev->send_section_size;
 	device_info.recv_sections = nvdev->recv_section_cnt;
+	device_info.recv_section_size = nvdev->recv_section_size;
 
 	rndis_filter_device_remove(hdev, nvdev);
 
@@ -1488,7 +1489,9 @@ static int netvsc_set_ringparam(struct net_device *ndev,
 	device_info.num_chn = nvdev->num_chn;
 	device_info.ring_size = ring_size;
 	device_info.send_sections = new_tx;
+	device_info.send_section_size = nvdev->send_section_size;
 	device_info.recv_sections = new_rx;
+	device_info.recv_section_size = nvdev->recv_section_size;
 
 	netif_device_detach(ndev);
 	was_opened = rndis_filter_opened(nvdev);
@@ -1937,7 +1940,9 @@ static int netvsc_probe(struct hv_device *dev,
 	device_info.ring_size = ring_size;
 	device_info.num_chn = VRSS_CHANNEL_DEFAULT;
 	device_info.send_sections = NETVSC_DEFAULT_TX;
+	device_info.send_section_size = NETVSC_SEND_SECTION_SIZE;
 	device_info.recv_sections = NETVSC_DEFAULT_RX;
+	device_info.recv_section_size = NETVSC_RECV_SECTION_SIZE;
 
 	nvdev = rndis_filter_device_add(dev, &device_info);
 	if (IS_ERR(nvdev)) {
@@ -1954,9 +1959,6 @@ static int netvsc_probe(struct hv_device *dev,
 		NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
 	net->vlan_features = net->features;
 
-	netif_set_real_num_tx_queues(net, nvdev->num_chn);
-	netif_set_real_num_rx_queues(net, nvdev->num_chn);
-
 	netdev_lockdep_set_classes(net);
 
 	/* MTU range: 68 - 1500 or 65521 */
@@ -2012,9 +2014,10 @@ static int netvsc_remove(struct hv_device *dev)
 	if (vf_netdev)
 		netvsc_unregister_vf(vf_netdev);
 
+	unregister_netdevice(net);
+
 	rndis_filter_device_remove(dev,
 				   rtnl_dereference(ndev_ctx->nvdev));
-	unregister_netdevice(net);
 	rtnl_unlock();
 
 	hv_set_drvdata(dev, NULL);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 69c40b8fccc3..065b204d8e17 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1039,8 +1039,6 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
 
 	/* Set the channel before opening.*/
 	nvchan->channel = new_sc;
-	netif_napi_add(ndev, &nvchan->napi,
-		       netvsc_poll, NAPI_POLL_WEIGHT);
 
 	ret = vmbus_open(new_sc, nvscdev->ring_size * PAGE_SIZE,
 			 nvscdev->ring_size * PAGE_SIZE, NULL, 0,
@@ -1048,10 +1046,86 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
 	if (ret == 0)
 		napi_enable(&nvchan->napi);
 	else
-		netif_napi_del(&nvchan->napi);
+		netdev_notice(ndev, "sub channel open failed: %d\n", ret);
 
-	atomic_inc(&nvscdev->open_chn);
-	wake_up(&nvscdev->subchan_open);
+	if (atomic_inc_return(&nvscdev->open_chn) == nvscdev->num_chn)
+		wake_up(&nvscdev->subchan_open);
+}
+
+/* Open sub-channels after completing the handling of the device probe.
+ * This breaks overlap of processing the host message for the
+ * new primary channel with the initialization of sub-channels.
+ */
+void rndis_set_subchannel(struct work_struct *w)
+{
+	struct netvsc_device *nvdev
+		= container_of(w, struct netvsc_device, subchan_work);
+	struct nvsp_message *init_packet = &nvdev->channel_init_pkt;
+	struct net_device_context *ndev_ctx;
+	struct rndis_device *rdev;
+	struct net_device *ndev;
+	struct hv_device *hv_dev;
+	int i, ret;
+
+	if (!rtnl_trylock()) {
+		schedule_work(w);
+		return;
+	}
+
+	rdev = nvdev->extension;
+	if (!rdev)
+		goto unlock;	/* device was removed */
+
+	ndev = rdev->ndev;
+	ndev_ctx = netdev_priv(ndev);
+	hv_dev = ndev_ctx->device_ctx;
+
+	memset(init_packet, 0, sizeof(struct nvsp_message));
+	init_packet->hdr.msg_type = NVSP_MSG5_TYPE_SUBCHANNEL;
+	init_packet->msg.v5_msg.subchn_req.op = NVSP_SUBCHANNEL_ALLOCATE;
+	init_packet->msg.v5_msg.subchn_req.num_subchannels =
+						nvdev->num_chn - 1;
+	ret = vmbus_sendpacket(hv_dev->channel, init_packet,
+			       sizeof(struct nvsp_message),
+			       (unsigned long)init_packet,
+			       VM_PKT_DATA_INBAND,
+			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+	if (ret) {
+		netdev_err(ndev, "sub channel allocate send failed: %d\n", ret);
+		goto failed;
+	}
+
+	wait_for_completion(&nvdev->channel_init_wait);
+	if (init_packet->msg.v5_msg.subchn_comp.status != NVSP_STAT_SUCCESS) {
+		netdev_err(ndev, "sub channel request failed\n");
+		goto failed;
+	}
+
+	nvdev->num_chn = 1 +
+		init_packet->msg.v5_msg.subchn_comp.num_subchannels;
+
+	/* wait for all sub channels to open */
+	wait_event(nvdev->subchan_open,
+		   atomic_read(&nvdev->open_chn) == nvdev->num_chn);
+
+	/* ignore failues from setting rss parameters, still have channels */
+	rndis_filter_set_rss_param(rdev, netvsc_hash_key);
+
+	netif_set_real_num_tx_queues(ndev, nvdev->num_chn);
+	netif_set_real_num_rx_queues(ndev, nvdev->num_chn);
+
+	rtnl_unlock();
+	return;
+
+failed:
+	/* fallback to only primary channel */
+	for (i = 1; i < nvdev->num_chn; i++)
+		netif_napi_del(&nvdev->chan_table[i].napi);
+
+	nvdev->max_chn = 1;
+	nvdev->num_chn = 1;
+unlock:
+	rtnl_unlock();
 }
 
 struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
@@ -1063,7 +1137,6 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 	struct rndis_device *rndis_device;
 	struct ndis_offload hwcaps;
 	struct ndis_offload_params offloads;
-	struct nvsp_message *init_packet;
 	struct ndis_recv_scale_cap rsscap;
 	u32 rsscap_size = sizeof(struct ndis_recv_scale_cap);
 	unsigned int gso_max_size = GSO_MAX_SIZE;
@@ -1215,9 +1288,7 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 							net_device->num_chn);
 
 	atomic_set(&net_device->open_chn, 1);
-
-	if (net_device->num_chn == 1)
-		return net_device;
+	vmbus_set_sc_create_callback(dev->channel, netvsc_sc_open);
 
 	for (i = 1; i < net_device->num_chn; i++) {
 		ret = netvsc_alloc_recv_comp_ring(net_device, i);
@@ -1228,38 +1299,15 @@ struct netvsc_device *rndis_filter_device_add(struct hv_device *dev,
 		}
 	}
 
-	vmbus_set_sc_create_callback(dev->channel, netvsc_sc_open);
+	for (i = 1; i < net_device->num_chn; i++)
+		netif_napi_add(net, &net_device->chan_table[i].napi,
+			       netvsc_poll, NAPI_POLL_WEIGHT);
 
-	init_packet = &net_device->channel_init_pkt;
-	memset(init_packet, 0, sizeof(struct nvsp_message));
-	init_packet->hdr.msg_type = NVSP_MSG5_TYPE_SUBCHANNEL;
-	init_packet->msg.v5_msg.subchn_req.op = NVSP_SUBCHANNEL_ALLOCATE;
-	init_packet->msg.v5_msg.subchn_req.num_subchannels =
-						net_device->num_chn - 1;
-	ret = vmbus_sendpacket(dev->channel, init_packet,
-			       sizeof(struct nvsp_message),
-			       (unsigned long)init_packet,
-			       VM_PKT_DATA_INBAND,
-			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
-	if (ret)
-		goto out;
-
-	wait_for_completion(&net_device->channel_init_wait);
-	if (init_packet->msg.v5_msg.subchn_comp.status != NVSP_STAT_SUCCESS) {
-		ret = -ENODEV;
-		goto out;
-	}
+	if (net_device->num_chn > 1)
+		schedule_work(&net_device->subchan_work);
 
-	net_device->num_chn = 1 +
-		init_packet->msg.v5_msg.subchn_comp.num_subchannels;
-
-	/* wait for all sub channels to open */
-	wait_event(net_device->subchan_open,
-		   atomic_read(&net_device->open_chn) == net_device->num_chn);
-
-	/* ignore failues from setting rss parameters, still have channels */
-	rndis_filter_set_rss_param(rndis_device, netvsc_hash_key);
 out:
+	/* if unavailable, just proceed with one queue */
 	if (ret) {
 		net_device->max_chn = 1;
 		net_device->num_chn = 1;
@@ -1280,10 +1328,10 @@ void rndis_filter_device_remove(struct hv_device *dev,
 	/* Halt and release the rndis device */
 	rndis_filter_halt_device(rndis_dev);
 
-	kfree(rndis_dev);
 	net_dev->extension = NULL;
 
 	netvsc_device_remove(dev);
+	kfree(rndis_dev);
 }
 
 int rndis_filter_open(struct netvsc_device *nvdev)
diff --git a/drivers/net/ieee802154/Makefile b/drivers/net/ieee802154/Makefile
index 8374bb44a145..bea1de5e726c 100644
--- a/drivers/net/ieee802154/Makefile
+++ b/drivers/net/ieee802154/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IEEE802154_FAKELB) += fakelb.o
 obj-$(CONFIG_IEEE802154_AT86RF230) += at86rf230.o
 obj-$(CONFIG_IEEE802154_MRF24J40) += mrf24j40.o
diff --git a/drivers/net/ipvlan/ipvtap.c b/drivers/net/ipvlan/ipvtap.c
index 5dea2063dbc8..0bcc07f346c3 100644
--- a/drivers/net/ipvlan/ipvtap.c
+++ b/drivers/net/ipvlan/ipvtap.c
@@ -197,8 +197,8 @@ static int ipvtap_init(void)
 {
 	int err;
 
-	err = tap_create_cdev(&ipvtap_cdev, &ipvtap_major, "ipvtap");
-
+	err = tap_create_cdev(&ipvtap_cdev, &ipvtap_major, "ipvtap",
+			      THIS_MODULE);
 	if (err)
 		goto out1;
 
diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c
index 98e4deaa3a6a..5ab1b8849c30 100644
--- a/drivers/net/macsec.c
+++ b/drivers/net/macsec.c
@@ -742,6 +742,7 @@ static struct sk_buff *macsec_encrypt(struct sk_buff *skb,
 	sg_init_table(sg, ret);
 	ret = skb_to_sgvec(skb, sg, 0, skb->len);
 	if (unlikely(ret < 0)) {
+		aead_request_free(req);
 		macsec_txsa_put(tx_sa);
 		kfree_skb(skb);
 		return ERR_PTR(ret);
@@ -954,6 +955,7 @@ static struct sk_buff *macsec_decrypt(struct sk_buff *skb,
 	sg_init_table(sg, ret);
 	ret = skb_to_sgvec(skb, sg, 0, skb->len);
 	if (unlikely(ret < 0)) {
+		aead_request_free(req);
 		kfree_skb(skb);
 		return ERR_PTR(ret);
 	}
diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index c2d0ea2fb019..cba5cb3b849a 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -204,8 +204,8 @@ static int macvtap_init(void)
 {
 	int err;
 
-	err = tap_create_cdev(&macvtap_cdev, &macvtap_major, "macvtap");
-
+	err = tap_create_cdev(&macvtap_cdev, &macvtap_major, "macvtap",
+			      THIS_MODULE);
 	if (err)
 		goto out1;
 
diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 0e27920c2b6b..be9aa368639f 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -616,7 +616,7 @@ static struct configfs_item_operations netconsole_target_item_ops = {
 	.release		= netconsole_target_release,
 };
 
-static struct config_item_type netconsole_target_type = {
+static const struct config_item_type netconsole_target_type = {
 	.ct_attrs		= netconsole_target_attrs,
 	.ct_item_ops		= &netconsole_target_item_ops,
 	.ct_owner		= THIS_MODULE,
@@ -682,7 +682,7 @@ static struct configfs_group_operations netconsole_subsys_group_ops = {
 	.drop_item	= drop_netconsole_target,
 };
 
-static struct config_item_type netconsole_subsys_type = {
+static const struct config_item_type netconsole_subsys_type = {
 	.ct_group_ops	= &netconsole_subsys_group_ops,
 	.ct_owner	= THIS_MODULE,
 };
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index a9d16a3af514..cd931cf9dcc2 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -160,15 +160,6 @@ config MDIO_XGENE
 
 endif
 
-menuconfig PHYLIB
-	tristate "PHY Device support and infrastructure"
-	depends on NETDEVICES
-	select MDIO_DEVICE
-	help
-	  Ethernet controllers are usually attached to PHY
-	  devices.  This option provides infrastructure for
-	  managing PHY devices.
-
 config PHYLINK
 	tristate
 	depends on NETDEVICES
@@ -179,6 +170,15 @@ config PHYLINK
 	  configuration links, PHYs, and Serdes links with MAC level
 	  autonegotiation modes.
 
+menuconfig PHYLIB
+	tristate "PHY Device support and infrastructure"
+	depends on NETDEVICES
+	select MDIO_DEVICE
+	help
+	  Ethernet controllers are usually attached to PHY
+	  devices.  This option provides infrastructure for
+	  managing PHY devices.
+
 if PHYLIB
 
 config SWPHY
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 416df92fbf4f..00f097e18c68 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for Linux PHY drivers and MDIO bus drivers
 
 libphy-y			:= phy.o phy-c45.o phy-core.o phy_device.o
diff --git a/drivers/net/phy/dp83640_reg.h b/drivers/net/phy/dp83640_reg.h
index e7fe41117003..21aa24c741b9 100644
--- a/drivers/net/phy/dp83640_reg.h
+++ b/drivers/net/phy/dp83640_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* dp83640_reg.h
  * Generated by regen.tcl on Thu Feb 17 10:02:48 AM CET 2011
  */
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 15cbcdba618a..4d02b27df044 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -681,9 +681,11 @@ static int m88e1116r_config_init(struct phy_device *phydev)
 	if (err < 0)
 		return err;
 
-	err = m88e1121_config_aneg_rgmii_delays(phydev);
-	if (err < 0)
-		return err;
+	if (phy_interface_is_rgmii(phydev)) {
+		err = m88e1121_config_aneg_rgmii_delays(phydev);
+		if (err < 0)
+			return err;
+	}
 
 	err = genphy_soft_reset(phydev);
 	if (err < 0)
diff --git a/drivers/net/phy/mdio-boardinfo.h b/drivers/net/phy/mdio-boardinfo.h
index 3a7f143904e8..773bb51399be 100644
--- a/drivers/net/phy/mdio-boardinfo.h
+++ b/drivers/net/phy/mdio-boardinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mdio-boardinfo.h - board info interface internal to the mdio_bus
  * component
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index e842d2cd1ee7..2b1e67bc1e73 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -373,7 +373,8 @@ void phy_ethtool_ksettings_get(struct phy_device *phydev,
 		cmd->base.port = PORT_BNC;
 	else
 		cmd->base.port = PORT_MII;
-
+	cmd->base.transceiver = phy_is_internal(phydev) ?
+				XCVR_INTERNAL : XCVR_EXTERNAL;
 	cmd->base.phy_address = phydev->mdio.addr;
 	cmd->base.autoneg = phydev->autoneg;
 	cmd->base.eth_tp_mdix_ctrl = phydev->mdix_ctrl;
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 8cf0c5901f95..67f25ac29025 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -879,7 +879,7 @@ void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
 {
 	const char *drv_name = phydev->drv ? phydev->drv->name : "unbound";
 	char *irq_str;
-	char irq_num[4];
+	char irq_num[8];
 
 	switch(phydev->irq) {
 	case PHY_POLL:
diff --git a/drivers/net/phy/swphy.h b/drivers/net/phy/swphy.h
index 2f09ac324e18..3668ab8c901a 100644
--- a/drivers/net/phy/swphy.h
+++ b/drivers/net/phy/swphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SWPHY_H
 #define SWPHY_H
 
diff --git a/drivers/net/phy/xilinx_gmii2rgmii.c b/drivers/net/phy/xilinx_gmii2rgmii.c
index d15dd3938ba8..2e5150b0b8d5 100644
--- a/drivers/net/phy/xilinx_gmii2rgmii.c
+++ b/drivers/net/phy/xilinx_gmii2rgmii.c
@@ -44,7 +44,7 @@ static int xgmiitorgmii_read_status(struct phy_device *phydev)
 	priv->phy_drv->read_status(phydev);
 
 	val = mdiobus_read(phydev->mdio.bus, priv->addr, XILINX_GMII2RGMII_REG);
-	val &= XILINX_GMII2RGMII_SPEED_MASK;
+	val &= ~XILINX_GMII2RGMII_SPEED_MASK;
 
 	if (phydev->speed == SPEED_1000)
 		val |= BMCR_SPEED1000;
diff --git a/drivers/net/ppp/Makefile b/drivers/net/ppp/Makefile
index a6b6297b0066..16c457d6b324 100644
--- a/drivers/net/ppp/Makefile
+++ b/drivers/net/ppp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux PPP network device drivers.
 #
diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c
index a404552555d4..e365866600ba 100644
--- a/drivers/net/ppp/ppp_generic.c
+++ b/drivers/net/ppp/ppp_generic.c
@@ -120,7 +120,7 @@ struct ppp {
 	int		n_channels;	/* how many channels are attached 54 */
 	spinlock_t	rlock;		/* lock for receive side 58 */
 	spinlock_t	wlock;		/* lock for transmit side 5c */
-	int		*xmit_recursion __percpu; /* xmit recursion detect */
+	int __percpu	*xmit_recursion; /* xmit recursion detect */
 	int		mru;		/* max receive unit 60 */
 	unsigned int	flags;		/* control bits 64 */
 	unsigned int	xstate;		/* transmit state bits 68 */
@@ -1339,7 +1339,17 @@ ppp_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats64)
 
 static int ppp_dev_init(struct net_device *dev)
 {
+	struct ppp *ppp;
+
 	netdev_lockdep_set_classes(dev);
+
+	ppp = netdev_priv(dev);
+	/* Let the netdevice take a reference on the ppp file. This ensures
+	 * that ppp_destroy_interface() won't run before the device gets
+	 * unregistered.
+	 */
+	atomic_inc(&ppp->file.refcnt);
+
 	return 0;
 }
 
@@ -1362,6 +1372,15 @@ static void ppp_dev_uninit(struct net_device *dev)
 	wake_up_interruptible(&ppp->file.rwait);
 }
 
+static void ppp_dev_priv_destructor(struct net_device *dev)
+{
+	struct ppp *ppp;
+
+	ppp = netdev_priv(dev);
+	if (atomic_dec_and_test(&ppp->file.refcnt))
+		ppp_destroy_interface(ppp);
+}
+
 static const struct net_device_ops ppp_netdev_ops = {
 	.ndo_init	 = ppp_dev_init,
 	.ndo_uninit      = ppp_dev_uninit,
@@ -1387,6 +1406,7 @@ static void ppp_setup(struct net_device *dev)
 	dev->tx_queue_len = 3;
 	dev->type = ARPHRD_PPP;
 	dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+	dev->priv_destructor = ppp_dev_priv_destructor;
 	netif_keep_dst(dev);
 }
 
diff --git a/drivers/net/ppp/ppp_mppe.h b/drivers/net/ppp/ppp_mppe.h
index 7a14e058c668..677b3b3f7425 100644
--- a/drivers/net/ppp/ppp_mppe.h
+++ b/drivers/net/ppp/ppp_mppe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define MPPE_PAD                4      /* MPPE growth per frame */
 #define MPPE_MAX_KEY_LEN       16      /* largest key length (128-bit) */
 
diff --git a/drivers/net/slip/slip.h b/drivers/net/slip/slip.h
index cf32aadf508f..c420e5948522 100644
--- a/drivers/net/slip/slip.h
+++ b/drivers/net/slip/slip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * slip.h	Define the SLIP device driver interface and constants.
  *
diff --git a/drivers/net/tap.c b/drivers/net/tap.c
index 21b71ae947fd..b13890953ebb 100644
--- a/drivers/net/tap.c
+++ b/drivers/net/tap.c
@@ -257,7 +257,7 @@ static struct tap_queue *tap_get_queue(struct tap_dev *tap,
 	 * and validate that the result isn't NULL - in case we are
 	 * racing against queue removal.
 	 */
-	int numvtaps = ACCESS_ONCE(tap->numvtaps);
+	int numvtaps = READ_ONCE(tap->numvtaps);
 	__u32 rxq;
 
 	if (!numvtaps)
@@ -517,6 +517,10 @@ static int tap_open(struct inode *inode, struct file *file)
 					     &tap_proto, 0);
 	if (!q)
 		goto err;
+	if (skb_array_init(&q->skb_array, tap->dev->tx_queue_len, GFP_KERNEL)) {
+		sk_free(&q->sk);
+		goto err;
+	}
 
 	RCU_INIT_POINTER(q->sock.wq, &q->wq);
 	init_waitqueue_head(&q->wq.wait);
@@ -540,22 +544,18 @@ static int tap_open(struct inode *inode, struct file *file)
 	if ((tap->dev->features & NETIF_F_HIGHDMA) && (tap->dev->features & NETIF_F_SG))
 		sock_set_flag(&q->sk, SOCK_ZEROCOPY);
 
-	err = -ENOMEM;
-	if (skb_array_init(&q->skb_array, tap->dev->tx_queue_len, GFP_KERNEL))
-		goto err_array;
-
 	err = tap_set_queue(tap, file, q);
-	if (err)
-		goto err_queue;
+	if (err) {
+		/* tap_sock_destruct() will take care of freeing skb_array */
+		goto err_put;
+	}
 
 	dev_put(tap->dev);
 
 	rtnl_unlock();
 	return err;
 
-err_queue:
-	skb_array_cleanup(&q->skb_array);
-err_array:
+err_put:
 	sock_put(&q->sk);
 err:
 	if (tap)
@@ -1032,6 +1032,8 @@ static long tap_ioctl(struct file *file, unsigned int cmd,
 	case TUNSETSNDBUF:
 		if (get_user(s, sp))
 			return -EFAULT;
+		if (s <= 0)
+			return -EINVAL;
 
 		q->sk.sk_sndbuf = s;
 		return 0;
@@ -1249,8 +1251,8 @@ static int tap_list_add(dev_t major, const char *device_name)
 	return 0;
 }
 
-int tap_create_cdev(struct cdev *tap_cdev,
-		    dev_t *tap_major, const char *device_name)
+int tap_create_cdev(struct cdev *tap_cdev, dev_t *tap_major,
+		    const char *device_name, struct module *module)
 {
 	int err;
 
@@ -1259,6 +1261,7 @@ int tap_create_cdev(struct cdev *tap_cdev,
 		goto out1;
 
 	cdev_init(tap_cdev, &tap_fops);
+	tap_cdev->owner = module;
 	err = cdev_add(tap_cdev, *tap_major, TAP_NUM_DEVS);
 	if (err)
 		goto out2;
diff --git a/drivers/net/team/Makefile b/drivers/net/team/Makefile
index c57e85889751..f582d81a5091 100644
--- a/drivers/net/team/Makefile
+++ b/drivers/net/team/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the network team driver
 #
diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 3c9985f29950..c1685a6d7883 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -469,7 +469,7 @@ static u16 tun_select_queue(struct net_device *dev, struct sk_buff *skb,
 	u32 numqueues = 0;
 
 	rcu_read_lock();
-	numqueues = ACCESS_ONCE(tun->numqueues);
+	numqueues = READ_ONCE(tun->numqueues);
 
 	txq = __skb_get_hash_symmetric(skb);
 	if (txq) {
@@ -864,7 +864,7 @@ static netdev_tx_t tun_net_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	rcu_read_lock();
 	tfile = rcu_dereference(tun->tfiles[txq]);
-	numqueues = ACCESS_ONCE(tun->numqueues);
+	numqueues = READ_ONCE(tun->numqueues);
 
 	/* Drop packet if interface is not attached */
 	if (txq >= numqueues)
@@ -1286,6 +1286,7 @@ static struct sk_buff *tun_build_skb(struct tun_struct *tun,
 	buflen += SKB_DATA_ALIGN(len + pad);
 	rcu_read_unlock();
 
+	alloc_frag->offset = ALIGN((u64)alloc_frag->offset, SMP_CACHE_BYTES);
 	if (unlikely(!skb_page_frag_refill(buflen, alloc_frag, GFP_KERNEL)))
 		return ERR_PTR(-ENOMEM);
 
@@ -1496,11 +1497,13 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 	switch (tun->flags & TUN_TYPE_MASK) {
 	case IFF_TUN:
 		if (tun->flags & IFF_NO_PI) {
-			switch (skb->data[0] & 0xf0) {
-			case 0x40:
+			u8 ip_version = skb->len ? (skb->data[0] >> 4) : 0;
+
+			switch (ip_version) {
+			case 4:
 				pi.proto = htons(ETH_P_IP);
 				break;
-			case 0x60:
+			case 6:
 				pi.proto = htons(ETH_P_IPV6);
 				break;
 			default:
@@ -2025,6 +2028,9 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr)
 
 		if (!dev)
 			return -ENOMEM;
+		err = dev_get_valid_name(net, dev, name);
+		if (err < 0)
+			goto err_free_dev;
 
 		dev_net_set(dev, net);
 		dev->rtnl_link_ops = &tun_link_ops;
@@ -2423,6 +2429,10 @@ static long __tun_chr_ioctl(struct file *file, unsigned int cmd,
 			ret = -EFAULT;
 			break;
 		}
+		if (sndbuf <= 0) {
+			ret = -EINVAL;
+			break;
+		}
 
 		tun->sndbuf = sndbuf;
 		tun_set_sndbuf(tun);
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 37fb46aee341..27307a4ab003 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB Network drivers
 #
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index b2ff88e69a81..3d4f7959dabb 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -626,7 +626,7 @@ static int asix_suspend(struct usb_interface *intf, pm_message_t message)
 	struct usbnet *dev = usb_get_intfdata(intf);
 	struct asix_common_private *priv = dev->driver_priv;
 
-	if (priv->suspend)
+	if (priv && priv->suspend)
 		priv->suspend(dev);
 
 	return usbnet_suspend(intf, message);
@@ -678,7 +678,7 @@ static int asix_resume(struct usb_interface *intf)
 	struct usbnet *dev = usb_get_intfdata(intf);
 	struct asix_common_private *priv = dev->driver_priv;
 
-	if (priv->resume)
+	if (priv && priv->resume)
 		priv->resume(dev);
 
 	return usbnet_resume(intf);
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 8ab281b478f2..05dca3e5c93d 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -54,11 +54,19 @@ static int is_wireless_rndis(struct usb_interface_descriptor *desc)
 		desc->bInterfaceProtocol == 3);
 }
 
+static int is_novatel_rndis(struct usb_interface_descriptor *desc)
+{
+	return (desc->bInterfaceClass == USB_CLASS_MISC &&
+		desc->bInterfaceSubClass == 4 &&
+		desc->bInterfaceProtocol == 1);
+}
+
 #else
 
 #define is_rndis(desc)		0
 #define is_activesync(desc)	0
 #define is_wireless_rndis(desc)	0
+#define is_novatel_rndis(desc)	0
 
 #endif
 
@@ -150,7 +158,8 @@ int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
 	 */
 	rndis = (is_rndis(&intf->cur_altsetting->desc) ||
 		 is_activesync(&intf->cur_altsetting->desc) ||
-		 is_wireless_rndis(&intf->cur_altsetting->desc));
+		 is_wireless_rndis(&intf->cur_altsetting->desc) ||
+		 is_novatel_rndis(&intf->cur_altsetting->desc));
 
 	memset(info, 0, sizeof(*info));
 	info->control = intf;
@@ -221,7 +230,7 @@ skip:
 			goto bad_desc;
 	}
 
-	if (header.usb_cdc_ether_desc) {
+	if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
 		dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
 		/* because of Zaurus, we may be ignoring the host
 		 * side link address we were given.
@@ -547,9 +556,12 @@ static const struct driver_info wwan_info = {
 #define REALTEK_VENDOR_ID	0x0bda
 #define SAMSUNG_VENDOR_ID	0x04e8
 #define LENOVO_VENDOR_ID	0x17ef
+#define LINKSYS_VENDOR_ID	0x13b1
 #define NVIDIA_VENDOR_ID	0x0955
 #define HP_VENDOR_ID		0x03f0
 #define MICROSOFT_VENDOR_ID	0x045e
+#define UBLOX_VENDOR_ID		0x1546
+#define TPLINK_VENDOR_ID	0x2357
 
 static const struct usb_device_id	products[] = {
 /* BLACKLIST !!
@@ -737,6 +749,15 @@ static const struct usb_device_id	products[] = {
 	.driver_info = 0,
 },
 
+#if IS_ENABLED(CONFIG_USB_RTL8152)
+/* Linksys USB3GIGV1 Ethernet Adapter */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = 0,
+},
+#endif
+
 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */
 {
 	USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,
@@ -793,6 +814,13 @@ static const struct usb_device_id	products[] = {
 	.driver_info = 0,
 },
 
+	/* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
+{
+	USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+	.driver_info = 0,
+},
+
 /* WHITELIST!!!
  *
  * CDC Ether uses two interfaces, not necessarily consecutive.
@@ -844,12 +872,30 @@ static const struct usb_device_id	products[] = {
 			USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
 	.driver_info = (kernel_ulong_t)&wwan_info,
 }, {
+	/* Huawei ME906 and ME909 */
+	USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM,
+				      USB_CDC_SUBCLASS_ETHERNET,
+				      USB_CDC_PROTO_NONE),
+	.driver_info = (unsigned long)&wwan_info,
+}, {
 	/* ZTE modules */
 	USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
 				      USB_CDC_SUBCLASS_ETHERNET,
 				      USB_CDC_PROTO_NONE),
 	.driver_info = (unsigned long)&zte_cdc_info,
 }, {
+	/* U-blox TOBY-L2 */
+	USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM,
+				      USB_CDC_SUBCLASS_ETHERNET,
+				      USB_CDC_PROTO_NONE),
+	.driver_info = (unsigned long)&wwan_info,
+}, {
+	/* U-blox SARA-U2 */
+	USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM,
+				      USB_CDC_SUBCLASS_ETHERNET,
+				      USB_CDC_PROTO_NONE),
+	.driver_info = (unsigned long)&wwan_info,
+}, {
 	USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
 			USB_CDC_PROTO_NONE),
 	.driver_info = (unsigned long) &cdc_info,
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index b99a7fb09f8e..0161f77641fa 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1265,30 +1265,45 @@ static int lan78xx_ethtool_get_eeprom(struct net_device *netdev,
 				      struct ethtool_eeprom *ee, u8 *data)
 {
 	struct lan78xx_net *dev = netdev_priv(netdev);
+	int ret;
+
+	ret = usb_autopm_get_interface(dev->intf);
+	if (ret)
+		return ret;
 
 	ee->magic = LAN78XX_EEPROM_MAGIC;
 
-	return lan78xx_read_raw_eeprom(dev, ee->offset, ee->len, data);
+	ret = lan78xx_read_raw_eeprom(dev, ee->offset, ee->len, data);
+
+	usb_autopm_put_interface(dev->intf);
+
+	return ret;
 }
 
 static int lan78xx_ethtool_set_eeprom(struct net_device *netdev,
 				      struct ethtool_eeprom *ee, u8 *data)
 {
 	struct lan78xx_net *dev = netdev_priv(netdev);
+	int ret;
+
+	ret = usb_autopm_get_interface(dev->intf);
+	if (ret)
+		return ret;
 
-	/* Allow entire eeprom update only */
-	if ((ee->magic == LAN78XX_EEPROM_MAGIC) &&
-	    (ee->offset == 0) &&
-	    (ee->len == 512) &&
-	    (data[0] == EEPROM_INDICATOR))
-		return lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data);
+	/* Invalid EEPROM_INDICATOR at offset zero will result in a failure
+	 * to load data from EEPROM
+	 */
+	if (ee->magic == LAN78XX_EEPROM_MAGIC)
+		ret = lan78xx_write_raw_eeprom(dev, ee->offset, ee->len, data);
 	else if ((ee->magic == LAN78XX_OTP_MAGIC) &&
 		 (ee->offset == 0) &&
 		 (ee->len == 512) &&
 		 (data[0] == OTP_INDICATOR_1))
-		return lan78xx_write_raw_otp(dev, ee->offset, ee->len, data);
+		ret = lan78xx_write_raw_otp(dev, ee->offset, ee->len, data);
+
+	usb_autopm_put_interface(dev->intf);
 
-	return -EINVAL;
+	return ret;
 }
 
 static void lan78xx_get_strings(struct net_device *netdev, u32 stringset,
@@ -2434,7 +2449,6 @@ static int lan78xx_reset(struct lan78xx_net *dev)
 	/* LAN7801 only has RGMII mode */
 	if (dev->chipid == ID_REV_CHIP_ID_7801_)
 		buf &= ~MAC_CR_GMII_EN_;
-	buf |= MAC_CR_AUTO_DUPLEX_ | MAC_CR_AUTO_SPEED_;
 	ret = lan78xx_write_reg(dev, MAC_CR, buf);
 
 	ret = lan78xx_read_reg(dev, MAC_TX, &buf);
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 8c3733608271..8d4a6f7cba61 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -499,6 +499,7 @@ static int qmi_wwan_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 		return 1;
 	}
 	if (rawip) {
+		skb_reset_mac_header(skb);
 		skb->dev = dev->net; /* normally set by eth_type_trans */
 		skb->protocol = proto;
 		return 1;
@@ -681,7 +682,7 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 	}
 
 	/* errors aren't fatal - we can live with the dynamic address */
-	if (cdc_ether) {
+	if (cdc_ether && cdc_ether->wMaxSegmentSize) {
 		dev->hard_mtu = le16_to_cpu(cdc_ether->wMaxSegmentSize);
 		usbnet_get_ethernet_addr(dev, cdc_ether->iMACAddress);
 	}
diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ceb78e2ea4f0..d51d9abf7986 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -613,7 +613,9 @@ enum rtl8152_flags {
 #define VENDOR_ID_MICROSOFT		0x045e
 #define VENDOR_ID_SAMSUNG		0x04e8
 #define VENDOR_ID_LENOVO		0x17ef
+#define VENDOR_ID_LINKSYS		0x13b1
 #define VENDOR_ID_NVIDIA		0x0955
+#define VENDOR_ID_TPLINK		0x2357
 
 #define MCU_TYPE_PLA			0x0100
 #define MCU_TYPE_USB			0x0000
@@ -5316,7 +5318,9 @@ static const struct usb_device_id rtl8152_table[] = {
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7205)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x720c)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_LENOVO,  0x7214)},
+	{REALTEK_USB_DEVICE(VENDOR_ID_LINKSYS, 0x0041)},
 	{REALTEK_USB_DEVICE(VENDOR_ID_NVIDIA,  0x09ff)},
+	{REALTEK_USB_DEVICE(VENDOR_ID_TPLINK,  0x0601)},
 	{}
 };
 
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index a151f267aebb..b807c91abe1d 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -632,6 +632,10 @@ static const struct usb_device_id	products [] = {
 	/* RNDIS for tethering */
 	USB_INTERFACE_INFO(USB_CLASS_WIRELESS_CONTROLLER, 1, 3),
 	.driver_info = (unsigned long) &rndis_info,
+}, {
+	/* Novatel Verizon USB730L */
+	USB_INTERFACE_INFO(USB_CLASS_MISC, 4, 1),
+	.driver_info = (unsigned long) &rndis_info,
 },
 	{ },		// END
 };
diff --git a/drivers/net/usb/smsc95xx.c b/drivers/net/usb/smsc95xx.c
index 340c13484e5c..309b88acd3d0 100644
--- a/drivers/net/usb/smsc95xx.c
+++ b/drivers/net/usb/smsc95xx.c
@@ -526,7 +526,7 @@ static void smsc95xx_set_multicast(struct net_device *netdev)
 static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
 					   u16 lcladv, u16 rmtadv)
 {
-	u32 flow, afc_cfg = 0;
+	u32 flow = 0, afc_cfg;
 
 	int ret = smsc95xx_read_reg(dev, AFC_CFG, &afc_cfg);
 	if (ret < 0)
@@ -537,20 +537,19 @@ static int smsc95xx_phy_update_flowcontrol(struct usbnet *dev, u8 duplex,
 
 		if (cap & FLOW_CTRL_RX)
 			flow = 0xFFFF0002;
-		else
-			flow = 0;
 
-		if (cap & FLOW_CTRL_TX)
+		if (cap & FLOW_CTRL_TX) {
 			afc_cfg |= 0xF;
-		else
+			flow |= 0xFFFF0000;
+		} else {
 			afc_cfg &= ~0xF;
+		}
 
 		netif_dbg(dev, link, dev->net, "rx pause %s, tx pause %s\n",
 				   cap & FLOW_CTRL_RX ? "enabled" : "disabled",
 				   cap & FLOW_CTRL_TX ? "enabled" : "disabled");
 	} else {
 		netif_dbg(dev, link, dev->net, "half duplex\n");
-		flow = 0;
 		afc_cfg |= 0xF;
 	}
 
diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c
index 7e19051f3230..7dc3bcac3506 100644
--- a/drivers/net/vrf.c
+++ b/drivers/net/vrf.c
@@ -957,12 +957,12 @@ static void vrf_ip6_input_dst(struct sk_buff *skb, struct net_device *vrf_dev,
 {
 	const struct ipv6hdr *iph = ipv6_hdr(skb);
 	struct flowi6 fl6 = {
+		.flowi6_iif     = ifindex,
+		.flowi6_mark    = skb->mark,
+		.flowi6_proto   = iph->nexthdr,
 		.daddr          = iph->daddr,
 		.saddr          = iph->saddr,
 		.flowlabel      = ip6_flowinfo(iph),
-		.flowi6_mark    = skb->mark,
-		.flowi6_proto   = iph->nexthdr,
-		.flowi6_iif     = ifindex,
 	};
 	struct net *net = dev_net(vrf_dev);
 	struct rt6_info *rt6;
@@ -1165,7 +1165,7 @@ static int vrf_fib_rule(const struct net_device *dev, __u8 family, bool add_it)
 	frh->family = family;
 	frh->action = FR_ACT_TO_TBL;
 
-	if (nla_put_u32(skb, FRA_L3MDEV, 1))
+	if (nla_put_u8(skb, FRA_L3MDEV, 1))
 		goto nla_put_failure;
 
 	if (nla_put_u32(skb, FRA_PRIORITY, FIB_RULE_PREF))
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d7c49cf1d5e9..3247d2feda07 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2325,9 +2325,9 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
 }
 
 /* Walk the forwarding table and purge stale entries */
-static void vxlan_cleanup(unsigned long arg)
+static void vxlan_cleanup(struct timer_list *t)
 {
-	struct vxlan_dev *vxlan = (struct vxlan_dev *) arg;
+	struct vxlan_dev *vxlan = from_timer(vxlan, t, age_timer);
 	unsigned long next_timer = jiffies + FDB_AGE_INTERVAL;
 	unsigned int h;
 
@@ -2647,9 +2647,7 @@ static void vxlan_setup(struct net_device *dev)
 	INIT_LIST_HEAD(&vxlan->next);
 	spin_lock_init(&vxlan->hash_lock);
 
-	init_timer_deferrable(&vxlan->age_timer);
-	vxlan->age_timer.function = vxlan_cleanup;
-	vxlan->age_timer.data = (unsigned long) vxlan;
+	timer_setup(&vxlan->age_timer, vxlan_cleanup, TIMER_DEFERRABLE);
 
 	vxlan->dev = dev;
 
diff --git a/drivers/net/wan/Makefile b/drivers/net/wan/Makefile
index 73c2326603fc..9532e69fda87 100644
--- a/drivers/net/wan/Makefile
+++ b/drivers/net/wan/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux network (wan) device drivers.
 #
diff --git a/drivers/net/wan/hd64570.h b/drivers/net/wan/hd64570.h
index 10963e8f4b39..24529996c872 100644
--- a/drivers/net/wan/hd64570.h
+++ b/drivers/net/wan/hd64570.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HD64570_H
 #define __HD64570_H
 
diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c
index a408abc25512..f4b0ab34f048 100644
--- a/drivers/net/wan/hdlc_cisco.c
+++ b/drivers/net/wan/hdlc_cisco.c
@@ -276,8 +276,6 @@ static void cisco_timer(unsigned long arg)
 	spin_unlock(&st->lock);
 
 	st->timer.expires = jiffies + st->settings.interval * HZ;
-	st->timer.function = cisco_timer;
-	st->timer.data = arg;
 	add_timer(&st->timer);
 }
 
diff --git a/drivers/net/wan/hdlc_fr.c b/drivers/net/wan/hdlc_fr.c
index 78596e42a3f3..07f265fa2826 100644
--- a/drivers/net/wan/hdlc_fr.c
+++ b/drivers/net/wan/hdlc_fr.c
@@ -644,8 +644,6 @@ static void fr_timer(unsigned long arg)
 			state(hdlc)->settings.t391 * HZ;
 	}
 
-	state(hdlc)->timer.function = fr_timer;
-	state(hdlc)->timer.data = arg;
 	add_timer(&state(hdlc)->timer);
 }
 
diff --git a/drivers/net/wan/lapbether.c b/drivers/net/wan/lapbether.c
index 63f749078a1f..0e3f8ed84660 100644
--- a/drivers/net/wan/lapbether.c
+++ b/drivers/net/wan/lapbether.c
@@ -346,7 +346,6 @@ out:
 fail:
 	dev_put(dev);
 	free_netdev(ndev);
-	kfree(lapbeth);
 	goto out;
 }
 
diff --git a/drivers/net/wan/lmc/lmc.h b/drivers/net/wan/lmc/lmc.h
index 4ced7ac16c2c..38961793adad 100644
--- a/drivers/net/wan/lmc/lmc.h
+++ b/drivers/net/wan/lmc/lmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LMC_H_
 #define _LMC_H_
 
diff --git a/drivers/net/wan/lmc/lmc_debug.c b/drivers/net/wan/lmc/lmc_debug.c
index 15049d711f47..f999db788506 100644
--- a/drivers/net/wan/lmc/lmc_debug.c
+++ b/drivers/net/wan/lmc/lmc_debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/netdevice.h>
 #include <linux/interrupt.h>
diff --git a/drivers/net/wan/lmc/lmc_debug.h b/drivers/net/wan/lmc/lmc_debug.h
index 2d46f121549f..820adcae5d67 100644
--- a/drivers/net/wan/lmc/lmc_debug.h
+++ b/drivers/net/wan/lmc/lmc_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LMC_DEBUG_H_
 #define _LMC_DEBUG_H_
 
diff --git a/drivers/net/wan/lmc/lmc_proto.h b/drivers/net/wan/lmc/lmc_proto.h
index 662148c54644..bb098e443776 100644
--- a/drivers/net/wan/lmc/lmc_proto.h
+++ b/drivers/net/wan/lmc/lmc_proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LMC_PROTO_H_
 #define _LMC_PROTO_H_
 
diff --git a/drivers/net/wan/x25_asy.h b/drivers/net/wan/x25_asy.h
index f57ee67836ae..eb4a4216ee94 100644
--- a/drivers/net/wan/x25_asy.h
+++ b/drivers/net/wan/x25_asy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_X25_ASY_H
 #define _LINUX_X25_ASY_H
 
diff --git a/drivers/net/wan/z85230.h b/drivers/net/wan/z85230.h
index 2416a9d60bd6..32ae710d4f40 100644
--- a/drivers/net/wan/z85230.h
+++ b/drivers/net/wan/z85230.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Description of Z8530 Z85C30 and Z85230 communications chips
  *
diff --git a/drivers/net/wimax/i2400m/Makefile b/drivers/net/wimax/i2400m/Makefile
index f6d19c348082..b1db1eff0648 100644
--- a/drivers/net/wimax/i2400m/Makefile
+++ b/drivers/net/wimax/i2400m/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_WIMAX_I2400M) += i2400m.o
 obj-$(CONFIG_WIMAX_I2400M_USB) += i2400m-usb.o
diff --git a/drivers/net/wimax/i2400m/fw.c b/drivers/net/wimax/i2400m/fw.c
index c9c711dcd0e6..a89b5685e68b 100644
--- a/drivers/net/wimax/i2400m/fw.c
+++ b/drivers/net/wimax/i2400m/fw.c
@@ -652,7 +652,7 @@ static int i2400m_download_chunk(struct i2400m *i2400m, const void *chunk,
 	struct device *dev = i2400m_dev(i2400m);
 	struct {
 		struct i2400m_bootrom_header cmd;
-		u8 cmd_payload[chunk_len];
+		u8 cmd_payload[];
 	} __packed *buf;
 	struct i2400m_bootrom_header ack;
 
diff --git a/drivers/net/wireless/Makefile b/drivers/net/wireless/Makefile
index 54b41ac5f9c8..7fc96306712a 100644
--- a/drivers/net/wireless/Makefile
+++ b/drivers/net/wireless/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Wireless network device drivers.
 #
diff --git a/drivers/net/wireless/admtek/adm8211.h b/drivers/net/wireless/admtek/adm8211.h
index bbc10b1cde87..2c55c629de28 100644
--- a/drivers/net/wireless/admtek/adm8211.h
+++ b/drivers/net/wireless/admtek/adm8211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ADM8211_H
 #define ADM8211_H
 
diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile
index 4cdebc7659dd..e4e460b5498e 100644
--- a/drivers/net/wireless/ath/Makefile
+++ b/drivers/net/wireless/ath/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ATH5K)		+= ath5k/
 obj-$(CONFIG_ATH9K_HW)		+= ath9k/
 obj-$(CONFIG_CARL9170)		+= carl9170/
diff --git a/drivers/net/wireless/ath/ath10k/Makefile b/drivers/net/wireless/ath/ath10k/Makefile
index 899b9b79f4ce..9492177e9063 100644
--- a/drivers/net/wireless/ath/ath10k/Makefile
+++ b/drivers/net/wireless/ath/ath10k/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ATH10K) += ath10k_core.o
 ath10k_core-y += mac.o \
 		 debug.o \
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index a3f5dc78353f..0aeeb233af78 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -550,6 +550,11 @@ static int ath10k_htt_rx_crypto_param_len(struct ath10k *ar,
 		return IEEE80211_TKIP_IV_LEN;
 	case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
 		return IEEE80211_CCMP_HDR_LEN;
+	case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2:
+		return IEEE80211_CCMP_256_HDR_LEN;
+	case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2:
+	case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2:
+		return IEEE80211_GCMP_HDR_LEN;
 	case HTT_RX_MPDU_ENCRYPT_WEP128:
 	case HTT_RX_MPDU_ENCRYPT_WAPI:
 		break;
@@ -575,6 +580,11 @@ static int ath10k_htt_rx_crypto_tail_len(struct ath10k *ar,
 		return IEEE80211_TKIP_ICV_LEN;
 	case HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2:
 		return IEEE80211_CCMP_MIC_LEN;
+	case HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2:
+		return IEEE80211_CCMP_256_MIC_LEN;
+	case HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2:
+	case HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2:
+		return IEEE80211_GCMP_MIC_LEN;
 	case HTT_RX_MPDU_ENCRYPT_WEP128:
 	case HTT_RX_MPDU_ENCRYPT_WAPI:
 		break;
@@ -1051,9 +1061,21 @@ static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar,
 	hdr = (void *)msdu->data;
 
 	/* Tail */
-	if (status->flag & RX_FLAG_IV_STRIPPED)
+	if (status->flag & RX_FLAG_IV_STRIPPED) {
 		skb_trim(msdu, msdu->len -
 			 ath10k_htt_rx_crypto_tail_len(ar, enctype));
+	} else {
+		/* MIC */
+		if ((status->flag & RX_FLAG_MIC_STRIPPED) &&
+		    enctype == HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2)
+			skb_trim(msdu, msdu->len - 8);
+
+		/* ICV */
+		if (status->flag & RX_FLAG_ICV_STRIPPED &&
+		    enctype != HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2)
+			skb_trim(msdu, msdu->len -
+				 ath10k_htt_rx_crypto_tail_len(ar, enctype));
+	}
 
 	/* MMIC */
 	if ((status->flag & RX_FLAG_MMIC_STRIPPED) &&
@@ -1075,7 +1097,8 @@ static void ath10k_htt_rx_h_undecap_raw(struct ath10k *ar,
 static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar,
 					  struct sk_buff *msdu,
 					  struct ieee80211_rx_status *status,
-					  const u8 first_hdr[64])
+					  const u8 first_hdr[64],
+					  enum htt_rx_mpdu_encrypt_type enctype)
 {
 	struct ieee80211_hdr *hdr;
 	struct htt_rx_desc *rxd;
@@ -1083,6 +1106,7 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar,
 	u8 da[ETH_ALEN];
 	u8 sa[ETH_ALEN];
 	int l3_pad_bytes;
+	int bytes_aligned = ar->hw_params.decap_align_bytes;
 
 	/* Delivered decapped frame:
 	 * [nwifi 802.11 header] <-- replaced with 802.11 hdr
@@ -1111,6 +1135,14 @@ static void ath10k_htt_rx_h_undecap_nwifi(struct ath10k *ar,
 	/* push original 802.11 header */
 	hdr = (struct ieee80211_hdr *)first_hdr;
 	hdr_len = ieee80211_hdrlen(hdr->frame_control);
+
+	if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
+		memcpy(skb_push(msdu,
+				ath10k_htt_rx_crypto_param_len(ar, enctype)),
+		       (void *)hdr + round_up(hdr_len, bytes_aligned),
+			ath10k_htt_rx_crypto_param_len(ar, enctype));
+	}
+
 	memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
 
 	/* original 802.11 header has a different DA and in
@@ -1171,6 +1203,7 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar,
 	u8 sa[ETH_ALEN];
 	int l3_pad_bytes;
 	struct htt_rx_desc *rxd;
+	int bytes_aligned = ar->hw_params.decap_align_bytes;
 
 	/* Delivered decapped frame:
 	 * [eth header] <-- replaced with 802.11 hdr & rfc1042/llc
@@ -1199,6 +1232,14 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar,
 	/* push original 802.11 header */
 	hdr = (struct ieee80211_hdr *)first_hdr;
 	hdr_len = ieee80211_hdrlen(hdr->frame_control);
+
+	if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
+		memcpy(skb_push(msdu,
+				ath10k_htt_rx_crypto_param_len(ar, enctype)),
+		       (void *)hdr + round_up(hdr_len, bytes_aligned),
+			ath10k_htt_rx_crypto_param_len(ar, enctype));
+	}
+
 	memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
 
 	/* original 802.11 header has a different DA and in
@@ -1212,12 +1253,14 @@ static void ath10k_htt_rx_h_undecap_eth(struct ath10k *ar,
 static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar,
 					 struct sk_buff *msdu,
 					 struct ieee80211_rx_status *status,
-					 const u8 first_hdr[64])
+					 const u8 first_hdr[64],
+					 enum htt_rx_mpdu_encrypt_type enctype)
 {
 	struct ieee80211_hdr *hdr;
 	size_t hdr_len;
 	int l3_pad_bytes;
 	struct htt_rx_desc *rxd;
+	int bytes_aligned = ar->hw_params.decap_align_bytes;
 
 	/* Delivered decapped frame:
 	 * [amsdu header] <-- replaced with 802.11 hdr
@@ -1233,6 +1276,14 @@ static void ath10k_htt_rx_h_undecap_snap(struct ath10k *ar,
 
 	hdr = (struct ieee80211_hdr *)first_hdr;
 	hdr_len = ieee80211_hdrlen(hdr->frame_control);
+
+	if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
+		memcpy(skb_push(msdu,
+				ath10k_htt_rx_crypto_param_len(ar, enctype)),
+		       (void *)hdr + round_up(hdr_len, bytes_aligned),
+			ath10k_htt_rx_crypto_param_len(ar, enctype));
+	}
+
 	memcpy(skb_push(msdu, hdr_len), hdr, hdr_len);
 }
 
@@ -1267,13 +1318,15 @@ static void ath10k_htt_rx_h_undecap(struct ath10k *ar,
 					    is_decrypted);
 		break;
 	case RX_MSDU_DECAP_NATIVE_WIFI:
-		ath10k_htt_rx_h_undecap_nwifi(ar, msdu, status, first_hdr);
+		ath10k_htt_rx_h_undecap_nwifi(ar, msdu, status, first_hdr,
+					      enctype);
 		break;
 	case RX_MSDU_DECAP_ETHERNET2_DIX:
 		ath10k_htt_rx_h_undecap_eth(ar, msdu, status, first_hdr, enctype);
 		break;
 	case RX_MSDU_DECAP_8023_SNAP_LLC:
-		ath10k_htt_rx_h_undecap_snap(ar, msdu, status, first_hdr);
+		ath10k_htt_rx_h_undecap_snap(ar, msdu, status, first_hdr,
+					     enctype);
 		break;
 	}
 }
@@ -1316,7 +1369,8 @@ static void ath10k_htt_rx_h_csum_offload(struct sk_buff *msdu)
 
 static void ath10k_htt_rx_h_mpdu(struct ath10k *ar,
 				 struct sk_buff_head *amsdu,
-				 struct ieee80211_rx_status *status)
+				 struct ieee80211_rx_status *status,
+				 bool fill_crypt_header)
 {
 	struct sk_buff *first;
 	struct sk_buff *last;
@@ -1326,7 +1380,6 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar,
 	enum htt_rx_mpdu_encrypt_type enctype;
 	u8 first_hdr[64];
 	u8 *qos;
-	size_t hdr_len;
 	bool has_fcs_err;
 	bool has_crypto_err;
 	bool has_tkip_err;
@@ -1351,15 +1404,17 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar,
 	 * decapped header. It'll be used for undecapping of each MSDU.
 	 */
 	hdr = (void *)rxd->rx_hdr_status;
-	hdr_len = ieee80211_hdrlen(hdr->frame_control);
-	memcpy(first_hdr, hdr, hdr_len);
+	memcpy(first_hdr, hdr, RX_HTT_HDR_STATUS_LEN);
 
 	/* Each A-MSDU subframe will use the original header as the base and be
 	 * reported as a separate MSDU so strip the A-MSDU bit from QoS Ctl.
 	 */
 	hdr = (void *)first_hdr;
-	qos = ieee80211_get_qos_ctl(hdr);
-	qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
+
+	if (ieee80211_is_data_qos(hdr->frame_control)) {
+		qos = ieee80211_get_qos_ctl(hdr);
+		qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
+	}
 
 	/* Some attention flags are valid only in the last MSDU. */
 	last = skb_peek_tail(amsdu);
@@ -1406,9 +1461,14 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar,
 		status->flag |= RX_FLAG_DECRYPTED;
 
 		if (likely(!is_mgmt))
-			status->flag |= RX_FLAG_IV_STRIPPED |
-					RX_FLAG_MMIC_STRIPPED;
-}
+			status->flag |= RX_FLAG_MMIC_STRIPPED;
+
+		if (fill_crypt_header)
+			status->flag |= RX_FLAG_MIC_STRIPPED |
+					RX_FLAG_ICV_STRIPPED;
+		else
+			status->flag |= RX_FLAG_IV_STRIPPED;
+	}
 
 	skb_queue_walk(amsdu, msdu) {
 		ath10k_htt_rx_h_csum_offload(msdu);
@@ -1424,6 +1484,9 @@ static void ath10k_htt_rx_h_mpdu(struct ath10k *ar,
 		if (is_mgmt)
 			continue;
 
+		if (fill_crypt_header)
+			continue;
+
 		hdr = (void *)msdu->data;
 		hdr->frame_control &= ~__cpu_to_le16(IEEE80211_FCTL_PROTECTED);
 	}
@@ -1434,6 +1497,9 @@ static void ath10k_htt_rx_h_deliver(struct ath10k *ar,
 				    struct ieee80211_rx_status *status)
 {
 	struct sk_buff *msdu;
+	struct sk_buff *first_subframe;
+
+	first_subframe = skb_peek(amsdu);
 
 	while ((msdu = __skb_dequeue(amsdu))) {
 		/* Setup per-MSDU flags */
@@ -1442,6 +1508,13 @@ static void ath10k_htt_rx_h_deliver(struct ath10k *ar,
 		else
 			status->flag |= RX_FLAG_AMSDU_MORE;
 
+		if (msdu == first_subframe) {
+			first_subframe = NULL;
+			status->flag &= ~RX_FLAG_ALLOW_SAME_PN;
+		} else {
+			status->flag |= RX_FLAG_ALLOW_SAME_PN;
+		}
+
 		ath10k_process_rx(ar, status, msdu);
 	}
 }
@@ -1584,7 +1657,7 @@ static int ath10k_htt_rx_handle_amsdu(struct ath10k_htt *htt)
 		ath10k_htt_rx_h_unchain(ar, &amsdu);
 
 	ath10k_htt_rx_h_filter(ar, &amsdu, rx_status);
-	ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status);
+	ath10k_htt_rx_h_mpdu(ar, &amsdu, rx_status, true);
 	ath10k_htt_rx_h_deliver(ar, &amsdu, rx_status);
 
 	return num_msdus;
@@ -1745,8 +1818,7 @@ static void ath10k_htt_rx_delba(struct ath10k *ar, struct htt_resp *resp)
 }
 
 static int ath10k_htt_rx_extract_amsdu(struct sk_buff_head *list,
-				       struct sk_buff_head *amsdu,
-				       int budget_left)
+				       struct sk_buff_head *amsdu)
 {
 	struct sk_buff *msdu;
 	struct htt_rx_desc *rxd;
@@ -1757,9 +1829,8 @@ static int ath10k_htt_rx_extract_amsdu(struct sk_buff_head *list,
 	if (WARN_ON(!skb_queue_empty(amsdu)))
 		return -EINVAL;
 
-	while ((msdu = __skb_dequeue(list)) && budget_left) {
+	while ((msdu = __skb_dequeue(list))) {
 		__skb_queue_tail(amsdu, msdu);
-		budget_left--;
 
 		rxd = (void *)msdu->data - sizeof(*rxd);
 		if (rxd->msdu_end.common.info0 &
@@ -1850,8 +1921,7 @@ static int ath10k_htt_rx_h_rx_offload(struct ath10k *ar,
 	return num_msdu;
 }
 
-static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb,
-				    int budget_left)
+static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct ath10k_htt *htt = &ar->htt;
 	struct htt_resp *resp = (void *)skb->data;
@@ -1908,9 +1978,9 @@ static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb,
 	if (offload)
 		num_msdus = ath10k_htt_rx_h_rx_offload(ar, &list);
 
-	while (!skb_queue_empty(&list) && budget_left) {
+	while (!skb_queue_empty(&list)) {
 		__skb_queue_head_init(&amsdu);
-		ret = ath10k_htt_rx_extract_amsdu(&list, &amsdu, budget_left);
+		ret = ath10k_htt_rx_extract_amsdu(&list, &amsdu);
 		switch (ret) {
 		case 0:
 			/* Note: The in-order indication may report interleaved
@@ -1920,10 +1990,9 @@ static int ath10k_htt_rx_in_ord_ind(struct ath10k *ar, struct sk_buff *skb,
 			 * should still give an idea about rx rate to the user.
 			 */
 			num_msdus += skb_queue_len(&amsdu);
-			budget_left -= skb_queue_len(&amsdu);
 			ath10k_htt_rx_h_ppdu(ar, &amsdu, status, vdev_id);
 			ath10k_htt_rx_h_filter(ar, &amsdu, status);
-			ath10k_htt_rx_h_mpdu(ar, &amsdu, status);
+			ath10k_htt_rx_h_mpdu(ar, &amsdu, status, false);
 			ath10k_htt_rx_h_deliver(ar, &amsdu, status);
 			break;
 		case -EAGAIN:
@@ -2563,8 +2632,7 @@ int ath10k_htt_txrx_compl_task(struct ath10k *ar, int budget)
 		}
 
 		spin_lock_bh(&htt->rx_ring.lock);
-		num_rx_msdus = ath10k_htt_rx_in_ord_ind(ar, skb,
-							(budget - quota));
+		num_rx_msdus = ath10k_htt_rx_in_ord_ind(ar, skb);
 		spin_unlock_bh(&htt->rx_ring.lock);
 		if (num_rx_msdus < 0) {
 			resched_napi = true;
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index bc1633945a56..195dafb98131 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -3396,9 +3396,7 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
 
 MODULE_DEVICE_TABLE(pci, ath10k_pci_id_table);
 
-#ifdef CONFIG_PM
-
-static int ath10k_pci_pm_suspend(struct device *dev)
+static __maybe_unused int ath10k_pci_pm_suspend(struct device *dev)
 {
 	struct ath10k *ar = dev_get_drvdata(dev);
 	int ret;
@@ -3414,7 +3412,7 @@ static int ath10k_pci_pm_suspend(struct device *dev)
 	return ret;
 }
 
-static int ath10k_pci_pm_resume(struct device *dev)
+static __maybe_unused int ath10k_pci_pm_resume(struct device *dev)
 {
 	struct ath10k *ar = dev_get_drvdata(dev);
 	int ret;
@@ -3433,7 +3431,6 @@ static int ath10k_pci_pm_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(ath10k_pci_pm_ops,
 			 ath10k_pci_pm_suspend,
 			 ath10k_pci_pm_resume);
-#endif
 
 static struct pci_driver ath10k_pci_driver = {
 	.name = "ath10k_pci",
diff --git a/drivers/net/wireless/ath/ath10k/rx_desc.h b/drivers/net/wireless/ath/ath10k/rx_desc.h
index c1022a1cf855..28da14398951 100644
--- a/drivers/net/wireless/ath/ath10k/rx_desc.h
+++ b/drivers/net/wireless/ath/ath10k/rx_desc.h
@@ -239,6 +239,9 @@ enum htt_rx_mpdu_encrypt_type {
 	HTT_RX_MPDU_ENCRYPT_WAPI             = 5,
 	HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2     = 6,
 	HTT_RX_MPDU_ENCRYPT_NONE             = 7,
+	HTT_RX_MPDU_ENCRYPT_AES_CCM256_WPA2  = 8,
+	HTT_RX_MPDU_ENCRYPT_AES_GCMP_WPA2    = 9,
+	HTT_RX_MPDU_ENCRYPT_AES_GCMP256_WPA2 = 10,
 };
 
 #define RX_MPDU_START_INFO0_PEER_IDX_MASK     0x000007ff
diff --git a/drivers/net/wireless/ath/ath5k/Makefile b/drivers/net/wireless/ath/ath5k/Makefile
index 1b3a34f7f224..a8724eee21f8 100644
--- a/drivers/net/wireless/ath/ath5k/Makefile
+++ b/drivers/net/wireless/ath/ath5k/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ath5k-y				+= caps.o
 ath5k-y				+= initvals.o
 ath5k-y				+= eeprom.o
diff --git a/drivers/net/wireless/ath/ath5k/desc.c b/drivers/net/wireless/ath/ath5k/desc.c
index bd8d4392d68b..80f75139495f 100644
--- a/drivers/net/wireless/ath/ath5k/desc.c
+++ b/drivers/net/wireless/ath/ath5k/desc.c
@@ -500,13 +500,13 @@ ath5k_hw_proc_4word_tx_status(struct ath5k_hw *ah,
 
 	tx_status = &desc->ud.ds_tx5212.tx_stat;
 
-	txstat1 = ACCESS_ONCE(tx_status->tx_status_1);
+	txstat1 = READ_ONCE(tx_status->tx_status_1);
 
 	/* No frame has been send or error */
 	if (unlikely(!(txstat1 & AR5K_DESC_TX_STATUS1_DONE)))
 		return -EINPROGRESS;
 
-	txstat0 = ACCESS_ONCE(tx_status->tx_status_0);
+	txstat0 = READ_ONCE(tx_status->tx_status_0);
 
 	/*
 	 * Get descriptor status
@@ -700,14 +700,14 @@ ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah,
 	u32 rxstat0, rxstat1;
 
 	rx_status = &desc->ud.ds_rx.rx_stat;
-	rxstat1 = ACCESS_ONCE(rx_status->rx_status_1);
+	rxstat1 = READ_ONCE(rx_status->rx_status_1);
 
 	/* No frame received / not ready */
 	if (unlikely(!(rxstat1 & AR5K_5212_RX_DESC_STATUS1_DONE)))
 		return -EINPROGRESS;
 
 	memset(rs, 0, sizeof(struct ath5k_rx_status));
-	rxstat0 = ACCESS_ONCE(rx_status->rx_status_0);
+	rxstat0 = READ_ONCE(rx_status->rx_status_0);
 
 	/*
 	 * Frame receive status
diff --git a/drivers/net/wireless/ath/ath5k/sysfs.c b/drivers/net/wireless/ath/ath5k/sysfs.c
index 04cf0ca72610..25978c732fe1 100644
--- a/drivers/net/wireless/ath/ath5k/sysfs.c
+++ b/drivers/net/wireless/ath/ath5k/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/device.h>
diff --git a/drivers/net/wireless/ath/ath5k/trace.h b/drivers/net/wireless/ath/ath5k/trace.h
index c6eef519bb61..a41e3bf42dfc 100644
--- a/drivers/net/wireless/ath/ath5k/trace.h
+++ b/drivers/net/wireless/ath/ath5k/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(__TRACE_ATH5K_H) || defined(TRACE_HEADER_MULTI_READ)
 #define __TRACE_ATH5K_H
 
diff --git a/drivers/net/wireless/ath/ath6kl/recovery.c b/drivers/net/wireless/ath/ath6kl/recovery.c
index 3a8d5e97dc8e..c09e40c9010f 100644
--- a/drivers/net/wireless/ath/ath6kl/recovery.c
+++ b/drivers/net/wireless/ath/ath6kl/recovery.c
@@ -60,9 +60,9 @@ void ath6kl_recovery_hb_event(struct ath6kl *ar, u32 cookie)
 		ar->fw_recovery.hb_pending = false;
 }
 
-static void ath6kl_recovery_hb_timer(unsigned long data)
+static void ath6kl_recovery_hb_timer(struct timer_list *t)
 {
-	struct ath6kl *ar = (struct ath6kl *) data;
+	struct ath6kl *ar = from_timer(ar, t, fw_recovery.hb_timer);
 	int err;
 
 	if (test_bit(RECOVERY_CLEANUP, &ar->flag) ||
@@ -104,9 +104,8 @@ void ath6kl_recovery_init(struct ath6kl *ar)
 	recovery->seq_num = 0;
 	recovery->hb_misscnt = 0;
 	ar->fw_recovery.hb_pending = false;
-	ar->fw_recovery.hb_timer.function = ath6kl_recovery_hb_timer;
-	ar->fw_recovery.hb_timer.data = (unsigned long) ar;
-	init_timer_deferrable(&ar->fw_recovery.hb_timer);
+	timer_setup(&ar->fw_recovery.hb_timer, ath6kl_recovery_hb_timer,
+		    TIMER_DEFERRABLE);
 
 	if (ar->fw_recovery.hb_poll)
 		mod_timer(&ar->fw_recovery.hb_timer, jiffies +
diff --git a/drivers/net/wireless/ath/ath6kl/trace.h b/drivers/net/wireless/ath/ath6kl/trace.h
index 1a1ea7881b4d..91e735cfdef7 100644
--- a/drivers/net/wireless/ath/ath6kl/trace.h
+++ b/drivers/net/wireless/ath/ath6kl/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_ATH6KL_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
 
 #include <net/cfg80211.h>
diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile
index 36a40ffdce15..d804ce7391a0 100644
--- a/drivers/net/wireless/ath/ath9k/Makefile
+++ b/drivers/net/wireless/ath/ath9k/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ath9k-y +=	beacon.o \
 		gpio.o \
 		init.o \
diff --git a/drivers/net/wireless/ath/carl9170/version.h b/drivers/net/wireless/ath/carl9170/version.h
index a0410fe8c03a..9a44d004c206 100644
--- a/drivers/net/wireless/ath/carl9170/version.h
+++ b/drivers/net/wireless/ath/carl9170/version.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CARL9170_SHARED_VERSION_H
 #define __CARL9170_SHARED_VERSION_H
 #define CARL9170FW_VERSION_YEAR 16
diff --git a/drivers/net/wireless/ath/wcn36xx/Makefile b/drivers/net/wireless/ath/wcn36xx/Makefile
index 50c43b4382ba..3b09435104eb 100644
--- a/drivers/net/wireless/ath/wcn36xx/Makefile
+++ b/drivers/net/wireless/ath/wcn36xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_WCN36XX) := wcn36xx.o
 wcn36xx-y +=   main.o \
                dxe.o \
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
index 35bd50bcbbd5..b83f01d6e3dd 100644
--- a/drivers/net/wireless/ath/wcn36xx/main.c
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -812,7 +812,6 @@ static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
 			if (!sta) {
 				wcn36xx_err("sta %pM is not found\n",
 					      bss_conf->bssid);
-				rcu_read_unlock();
 				goto out;
 			}
 			sta_priv = wcn36xx_sta_to_priv(sta);
diff --git a/drivers/net/wireless/ath/wil6210/Makefile b/drivers/net/wireless/ath/wil6210/Makefile
index d27efe83748b..398edd2a7f2b 100644
--- a/drivers/net/wireless/ath/wil6210/Makefile
+++ b/drivers/net/wireless/ath/wil6210/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_WIL6210) += wil6210.o
 
 wil6210-y := main.o
diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c
index 94bf01f8b2a8..ede89d4ffc88 100644
--- a/drivers/net/wireless/atmel/at76c50x-usb.c
+++ b/drivers/net/wireless/atmel/at76c50x-usb.c
@@ -519,7 +519,7 @@ exit:
 /* LED trigger */
 static int tx_activity;
 static void at76_ledtrig_tx_timerfunc(unsigned long data);
-static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc, 0, 0);
+static DEFINE_TIMER(ledtrig_tx_timer, at76_ledtrig_tx_timerfunc);
 DEFINE_LED_TRIGGER(ledtrig_tx);
 
 static void at76_ledtrig_tx_timerfunc(unsigned long data)
diff --git a/drivers/net/wireless/broadcom/b43/Makefile b/drivers/net/wireless/broadcom/b43/Makefile
index 27fab958e3d5..54f92ce49bb8 100644
--- a/drivers/net/wireless/broadcom/b43/Makefile
+++ b/drivers/net/wireless/broadcom/b43/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 b43-y				+= main.o
 b43-y				+= bus.o
 b43-$(CONFIG_B43_PHY_G)		+= phy_g.o tables.o lo.o wa.o
diff --git a/drivers/net/wireless/broadcom/b43/b43.h b/drivers/net/wireless/broadcom/b43/b43.h
index d7d42f0b80c3..b77d1a904f7e 100644
--- a/drivers/net/wireless/broadcom/b43/b43.h
+++ b/drivers/net/wireless/broadcom/b43/b43.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_H_
 #define B43_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/bus.h b/drivers/net/wireless/broadcom/b43/bus.h
index 256c2c17939a..2a695f9e528b 100644
--- a/drivers/net/wireless/broadcom/b43/bus.h
+++ b/drivers/net/wireless/broadcom/b43/bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_BUS_H_
 #define B43_BUS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/debugfs.h b/drivers/net/wireless/broadcom/b43/debugfs.h
index d05377745011..0bf437c86c67 100644
--- a/drivers/net/wireless/broadcom/b43/debugfs.h
+++ b/drivers/net/wireless/broadcom/b43/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_DEBUGFS_H_
 #define B43_DEBUGFS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/dma.h b/drivers/net/wireless/broadcom/b43/dma.h
index df8c8cdcbdb5..c2a357219d4b 100644
--- a/drivers/net/wireless/broadcom/b43/dma.h
+++ b/drivers/net/wireless/broadcom/b43/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_DMA_H_
 #define B43_DMA_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/leds.h b/drivers/net/wireless/broadcom/b43/leds.h
index 32b66d53cdac..5ebd1b2b1749 100644
--- a/drivers/net/wireless/broadcom/b43/leds.h
+++ b/drivers/net/wireless/broadcom/b43/leds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_LEDS_H_
 #define B43_LEDS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/lo.h b/drivers/net/wireless/broadcom/b43/lo.h
index 7b4df3883bc2..66e07ab79c51 100644
--- a/drivers/net/wireless/broadcom/b43/lo.h
+++ b/drivers/net/wireless/broadcom/b43/lo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_LO_H_
 #define B43_LO_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_a.h b/drivers/net/wireless/broadcom/b43/phy_a.h
index 0a92d01c21f9..b1cbfc02beb6 100644
--- a/drivers/net/wireless/broadcom/b43/phy_a.h
+++ b/drivers/net/wireless/broadcom/b43/phy_a.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_B43_PHY_A_H_
 #define LINUX_B43_PHY_A_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_ac.h b/drivers/net/wireless/broadcom/b43/phy_ac.h
index d1ca79e0eb24..02eb6c08670d 100644
--- a/drivers/net/wireless/broadcom/b43/phy_ac.h
+++ b/drivers/net/wireless/broadcom/b43/phy_ac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_PHY_AC_H_
 #define B43_PHY_AC_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_common.h b/drivers/net/wireless/broadcom/b43/phy_common.h
index ced054a9850c..57a1ad8afa08 100644
--- a/drivers/net/wireless/broadcom/b43/phy_common.h
+++ b/drivers/net/wireless/broadcom/b43/phy_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_B43_PHY_COMMON_H_
 #define LINUX_B43_PHY_COMMON_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_g.h b/drivers/net/wireless/broadcom/b43/phy_g.h
index 5413c906a3e7..a27b8603c75f 100644
--- a/drivers/net/wireless/broadcom/b43/phy_g.h
+++ b/drivers/net/wireless/broadcom/b43/phy_g.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_B43_PHY_G_H_
 #define LINUX_B43_PHY_G_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_ht.h b/drivers/net/wireless/broadcom/b43/phy_ht.h
index c086f56ce478..046753857493 100644
--- a/drivers/net/wireless/broadcom/b43/phy_ht.h
+++ b/drivers/net/wireless/broadcom/b43/phy_ht.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_PHY_HT_H_
 #define B43_PHY_HT_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_lcn.h b/drivers/net/wireless/broadcom/b43/phy_lcn.h
index 6a7092e13fff..0b1cfaf6394c 100644
--- a/drivers/net/wireless/broadcom/b43/phy_lcn.h
+++ b/drivers/net/wireless/broadcom/b43/phy_lcn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_PHY_LCN_H_
 #define B43_PHY_LCN_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_lp.h b/drivers/net/wireless/broadcom/b43/phy_lp.h
index 62737f700cbc..50bef2ea6e52 100644
--- a/drivers/net/wireless/broadcom/b43/phy_lp.h
+++ b/drivers/net/wireless/broadcom/b43/phy_lp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_B43_PHY_LP_H_
 #define LINUX_B43_PHY_LP_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/phy_n.h b/drivers/net/wireless/broadcom/b43/phy_n.h
index a6da2c31a99c..b96ded0ef539 100644
--- a/drivers/net/wireless/broadcom/b43/phy_n.h
+++ b/drivers/net/wireless/broadcom/b43/phy_n.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_NPHY_H_
 #define B43_NPHY_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/pio.h b/drivers/net/wireless/broadcom/b43/pio.h
index 1e516147424f..ffbfec622f82 100644
--- a/drivers/net/wireless/broadcom/b43/pio.h
+++ b/drivers/net/wireless/broadcom/b43/pio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_PIO_H_
 #define B43_PIO_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/ppr.h b/drivers/net/wireless/broadcom/b43/ppr.h
index 24d7447e9f01..094389f9f477 100644
--- a/drivers/net/wireless/broadcom/b43/ppr.h
+++ b/drivers/net/wireless/broadcom/b43/ppr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_B43_PPR_H_
 #define LINUX_B43_PPR_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/radio_2055.h b/drivers/net/wireless/broadcom/b43/radio_2055.h
index 67f96122f8d8..ad7271cde001 100644
--- a/drivers/net/wireless/broadcom/b43/radio_2055.h
+++ b/drivers/net/wireless/broadcom/b43/radio_2055.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_RADIO_2055_H_
 #define B43_RADIO_2055_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/radio_2056.h b/drivers/net/wireless/broadcom/b43/radio_2056.h
index 5b86673459fa..59297fdce5e3 100644
--- a/drivers/net/wireless/broadcom/b43/radio_2056.h
+++ b/drivers/net/wireless/broadcom/b43/radio_2056.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_RADIO_2056_H_
 #define B43_RADIO_2056_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/radio_2057.h b/drivers/net/wireless/broadcom/b43/radio_2057.h
index 220d080238ff..d7959da77b51 100644
--- a/drivers/net/wireless/broadcom/b43/radio_2057.h
+++ b/drivers/net/wireless/broadcom/b43/radio_2057.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_RADIO_2057_H_
 #define B43_RADIO_2057_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/radio_2059.h b/drivers/net/wireless/broadcom/b43/radio_2059.h
index 9e22fb60588b..32c0025bce9d 100644
--- a/drivers/net/wireless/broadcom/b43/radio_2059.h
+++ b/drivers/net/wireless/broadcom/b43/radio_2059.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_RADIO_2059_H_
 #define B43_RADIO_2059_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/rfkill.h b/drivers/net/wireless/broadcom/b43/rfkill.h
index f046c3ca0519..8682ac5b828a 100644
--- a/drivers/net/wireless/broadcom/b43/rfkill.h
+++ b/drivers/net/wireless/broadcom/b43/rfkill.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_RFKILL_H_
 #define B43_RFKILL_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/sdio.h b/drivers/net/wireless/broadcom/b43/sdio.h
index 1e93926f388f..aa5693b123ad 100644
--- a/drivers/net/wireless/broadcom/b43/sdio.h
+++ b/drivers/net/wireless/broadcom/b43/sdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_SDIO_H_
 #define B43_SDIO_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/sysfs.h b/drivers/net/wireless/broadcom/b43/sysfs.h
index 12bda9ef1a85..e70e6cff3c53 100644
--- a/drivers/net/wireless/broadcom/b43/sysfs.h
+++ b/drivers/net/wireless/broadcom/b43/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_SYSFS_H_
 #define B43_SYSFS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/tables.h b/drivers/net/wireless/broadcom/b43/tables.h
index 80e73c7cbac5..3b0777f15f3e 100644
--- a/drivers/net/wireless/broadcom/b43/tables.h
+++ b/drivers/net/wireless/broadcom/b43/tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_TABLES_H_
 #define B43_TABLES_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/tables_lpphy.h b/drivers/net/wireless/broadcom/b43/tables_lpphy.h
index 84f1d265f657..62002098bbda 100644
--- a/drivers/net/wireless/broadcom/b43/tables_lpphy.h
+++ b/drivers/net/wireless/broadcom/b43/tables_lpphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_TABLES_LPPHY_H_
 #define B43_TABLES_LPPHY_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/tables_nphy.h b/drivers/net/wireless/broadcom/b43/tables_nphy.h
index b51f386db02f..3876786d2692 100644
--- a/drivers/net/wireless/broadcom/b43/tables_nphy.h
+++ b/drivers/net/wireless/broadcom/b43/tables_nphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_TABLES_NPHY_H_
 #define B43_TABLES_NPHY_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/tables_phy_ht.h b/drivers/net/wireless/broadcom/b43/tables_phy_ht.h
index 1b5ef2bc770c..7ed057118ae3 100644
--- a/drivers/net/wireless/broadcom/b43/tables_phy_ht.h
+++ b/drivers/net/wireless/broadcom/b43/tables_phy_ht.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_TABLES_PHY_HT_H_
 #define B43_TABLES_PHY_HT_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/tables_phy_lcn.h b/drivers/net/wireless/broadcom/b43/tables_phy_lcn.h
index caff9db6831f..5ea6c15e851e 100644
--- a/drivers/net/wireless/broadcom/b43/tables_phy_lcn.h
+++ b/drivers/net/wireless/broadcom/b43/tables_phy_lcn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_TABLES_PHY_LCN_H_
 #define B43_TABLES_PHY_LCN_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/wa.h b/drivers/net/wireless/broadcom/b43/wa.h
index e163c5e56e81..f3459b99d83b 100644
--- a/drivers/net/wireless/broadcom/b43/wa.h
+++ b/drivers/net/wireless/broadcom/b43/wa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_WA_H_
 #define B43_WA_H_
 
diff --git a/drivers/net/wireless/broadcom/b43/xmit.h b/drivers/net/wireless/broadcom/b43/xmit.h
index ba6115308068..6524a75bb73b 100644
--- a/drivers/net/wireless/broadcom/b43/xmit.h
+++ b/drivers/net/wireless/broadcom/b43/xmit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43_XMIT_H_
 #define B43_XMIT_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/Makefile b/drivers/net/wireless/broadcom/b43legacy/Makefile
index 227a77e84362..f8b392f09009 100644
--- a/drivers/net/wireless/broadcom/b43legacy/Makefile
+++ b/drivers/net/wireless/broadcom/b43legacy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # b43legacy core
 b43legacy-y				+= main.o
 b43legacy-y				+= ilt.o
diff --git a/drivers/net/wireless/broadcom/b43legacy/b43legacy.h b/drivers/net/wireless/broadcom/b43legacy/b43legacy.h
index 482476fdb1f3..6b0cec467938 100644
--- a/drivers/net/wireless/broadcom/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/broadcom/b43legacy/b43legacy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_H_
 #define B43legacy_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/debugfs.h b/drivers/net/wireless/broadcom/b43legacy/debugfs.h
index 9ee32158b947..7a37764406b1 100644
--- a/drivers/net/wireless/broadcom/b43legacy/debugfs.h
+++ b/drivers/net/wireless/broadcom/b43legacy/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_DEBUGFS_H_
 #define B43legacy_DEBUGFS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/dma.h b/drivers/net/wireless/broadcom/b43legacy/dma.h
index c3282f906bc7..b5c1a51db2a4 100644
--- a/drivers/net/wireless/broadcom/b43legacy/dma.h
+++ b/drivers/net/wireless/broadcom/b43legacy/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_DMA_H_
 #define B43legacy_DMA_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/ilt.h b/drivers/net/wireless/broadcom/b43legacy/ilt.h
index 48bcf37eccb8..ce7a61e2efb1 100644
--- a/drivers/net/wireless/broadcom/b43legacy/ilt.h
+++ b/drivers/net/wireless/broadcom/b43legacy/ilt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_ILT_H_
 #define B43legacy_ILT_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/leds.h b/drivers/net/wireless/broadcom/b43legacy/leds.h
index 9ff6750dc57f..389ae06a2d10 100644
--- a/drivers/net/wireless/broadcom/b43legacy/leds.h
+++ b/drivers/net/wireless/broadcom/b43legacy/leds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_LEDS_H_
 #define B43legacy_LEDS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/pio.h b/drivers/net/wireless/broadcom/b43legacy/pio.h
index 8e6773ea6e75..1cd1b9ca5e9c 100644
--- a/drivers/net/wireless/broadcom/b43legacy/pio.h
+++ b/drivers/net/wireless/broadcom/b43legacy/pio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_PIO_H_
 #define B43legacy_PIO_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/rfkill.h b/drivers/net/wireless/broadcom/b43legacy/rfkill.h
index 75585571c544..7f314eb815d4 100644
--- a/drivers/net/wireless/broadcom/b43legacy/rfkill.h
+++ b/drivers/net/wireless/broadcom/b43legacy/rfkill.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_RFKILL_H_
 #define B43legacy_RFKILL_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/sysfs.h b/drivers/net/wireless/broadcom/b43legacy/sysfs.h
index 417d509803c7..ea9d783e6796 100644
--- a/drivers/net/wireless/broadcom/b43legacy/sysfs.h
+++ b/drivers/net/wireless/broadcom/b43legacy/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_SYSFS_H_
 #define B43legacy_SYSFS_H_
 
diff --git a/drivers/net/wireless/broadcom/b43legacy/xmit.h b/drivers/net/wireless/broadcom/b43legacy/xmit.h
index 289db00a4a7b..e4ef869f0b8c 100644
--- a/drivers/net/wireless/broadcom/b43legacy/xmit.h
+++ b/drivers/net/wireless/broadcom/b43legacy/xmit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef B43legacy_XMIT_H_
 #define B43legacy_XMIT_H_
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index aaed4ab503ad..4157c90ad973 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -980,7 +980,7 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 
 	eth_broadcast_addr(params_le->bssid);
 	params_le->bss_type = DOT11_BSSTYPE_ANY;
-	params_le->scan_type = 0;
+	params_le->scan_type = BRCMF_SCANTYPE_ACTIVE;
 	params_le->channel_num = 0;
 	params_le->nprobes = cpu_to_le32(-1);
 	params_le->active_time = cpu_to_le32(-1);
@@ -988,12 +988,9 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 	params_le->home_time = cpu_to_le32(-1);
 	memset(&params_le->ssid_le, 0, sizeof(params_le->ssid_le));
 
-	/* if request is null exit so it will be all channel broadcast scan */
-	if (!request)
-		return;
-
 	n_ssids = request->n_ssids;
 	n_channels = request->n_channels;
+
 	/* Copy channel array if applicable */
 	brcmf_dbg(SCAN, "### List of channelspecs to scan ### %d\n",
 		  n_channels);
@@ -1030,16 +1027,8 @@ static void brcmf_escan_prep(struct brcmf_cfg80211_info *cfg,
 			ptr += sizeof(ssid_le);
 		}
 	} else {
-		brcmf_dbg(SCAN, "Broadcast scan %p\n", request->ssids);
-		if ((request->ssids) && request->ssids->ssid_len) {
-			brcmf_dbg(SCAN, "SSID %s len=%d\n",
-				  params_le->ssid_le.SSID,
-				  request->ssids->ssid_len);
-			params_le->ssid_le.SSID_len =
-				cpu_to_le32(request->ssids->ssid_len);
-			memcpy(&params_le->ssid_le.SSID, request->ssids->ssid,
-				request->ssids->ssid_len);
-		}
+		brcmf_dbg(SCAN, "Performing passive scan\n");
+		params_le->scan_type = BRCMF_SCANTYPE_PASSIVE;
 	}
 	/* Adding mask to channel numbers */
 	params_le->channel_num =
@@ -3162,6 +3151,7 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 	struct brcmf_cfg80211_info *cfg = ifp->drvr->config;
 	s32 status;
 	struct brcmf_escan_result_le *escan_result_le;
+	u32 escan_buflen;
 	struct brcmf_bss_info_le *bss_info_le;
 	struct brcmf_bss_info_le *bss = NULL;
 	u32 bi_length;
@@ -3181,11 +3171,23 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 
 	if (status == BRCMF_E_STATUS_PARTIAL) {
 		brcmf_dbg(SCAN, "ESCAN Partial result\n");
+		if (e->datalen < sizeof(*escan_result_le)) {
+			brcmf_err("invalid event data length\n");
+			goto exit;
+		}
 		escan_result_le = (struct brcmf_escan_result_le *) data;
 		if (!escan_result_le) {
 			brcmf_err("Invalid escan result (NULL pointer)\n");
 			goto exit;
 		}
+		escan_buflen = le32_to_cpu(escan_result_le->buflen);
+		if (escan_buflen > BRCMF_ESCAN_BUF_SIZE ||
+		    escan_buflen > e->datalen ||
+		    escan_buflen < sizeof(*escan_result_le)) {
+			brcmf_err("Invalid escan buffer length: %d\n",
+				  escan_buflen);
+			goto exit;
+		}
 		if (le16_to_cpu(escan_result_le->bss_count) != 1) {
 			brcmf_err("Invalid bss_count %d: ignoring\n",
 				  escan_result_le->bss_count);
@@ -3202,9 +3204,8 @@ brcmf_cfg80211_escan_handler(struct brcmf_if *ifp,
 		}
 
 		bi_length = le32_to_cpu(bss_info_le->length);
-		if (bi_length != (le32_to_cpu(escan_result_le->buflen) -
-					WL_ESCAN_RESULTS_FIXED_SIZE)) {
-			brcmf_err("Invalid bss_info length %d: ignoring\n",
+		if (bi_length != escan_buflen -	WL_ESCAN_RESULTS_FIXED_SIZE) {
+			brcmf_err("Ignoring invalid bss_info length: %d\n",
 				  bi_length);
 			goto exit;
 		}
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
index 4eb1e1ce9ace..ef72baf6dd96 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
@@ -429,7 +429,8 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
 	if (code != BRCMF_E_IF && !fweh->evt_handler[code])
 		return;
 
-	if (datalen > BRCMF_DCMD_MAXLEN)
+	if (datalen > BRCMF_DCMD_MAXLEN ||
+	    datalen + sizeof(*event_packet) > packet_len)
 		return;
 
 	if (in_interrupt())
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
index 8391989b1882..e0d22fedb2b4 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fwil_types.h
@@ -45,6 +45,11 @@
 #define BRCMF_SCAN_PARAMS_COUNT_MASK	0x0000ffff
 #define BRCMF_SCAN_PARAMS_NSSID_SHIFT	16
 
+/* scan type definitions */
+#define BRCMF_SCANTYPE_DEFAULT		0xFF
+#define BRCMF_SCANTYPE_ACTIVE		0
+#define BRCMF_SCANTYPE_PASSIVE		1
+
 #define BRCMF_WSEC_MAX_PSK_LEN		32
 #define	BRCMF_WSEC_PASSPHRASE		BIT(0)
 
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
index 613caca7dc02..785a0f33b7e6 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c
@@ -3628,7 +3628,7 @@ static void brcmf_sdio_dataworker(struct work_struct *work)
 
 	bus->dpc_running = true;
 	wmb();
-	while (ACCESS_ONCE(bus->dpc_triggered)) {
+	while (READ_ONCE(bus->dpc_triggered)) {
 		bus->dpc_triggered = false;
 		brcmf_sdio_dpc(bus);
 		bus->idlecount = 0;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.c
index 74b17cecb189..c0a5449ed72c 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <net/mac80211.h>
 #include <linux/bcma/bcma_driver_chipcommon.h>
 #include <linux/gpio.h>
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
index b3aab2fe96eb..ef685465f80a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
@@ -14764,8 +14764,8 @@ static void wlc_phy_ipa_restore_tx_digi_filts_nphy(struct brcms_phy *pi)
 }
 
 static void
-wlc_phy_set_rfseq_nphy(struct brcms_phy *pi, u8 cmd, u8 *events, u8 *dlys,
-		       u8 len)
+wlc_phy_set_rfseq_nphy(struct brcms_phy *pi, u8 cmd, const u8 *events,
+		       const u8 *dlys, u8 len)
 {
 	u32 t1_offset, t2_offset;
 	u8 ctr;
@@ -15240,16 +15240,16 @@ static void wlc_phy_workarounds_nphy_gainctrl_2057_rev5(struct brcms_phy *pi)
 static void wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 {
 	u16 currband;
-	s8 lna1G_gain_db_rev7[] = { 9, 14, 19, 24 };
-	s8 *lna1_gain_db = NULL;
-	s8 *lna1_gain_db_2 = NULL;
-	s8 *lna2_gain_db = NULL;
-	s8 tiaA_gain_db_rev7[] = { -9, -6, -3, 0, 3, 3, 3, 3, 3, 3 };
-	s8 *tia_gain_db;
-	s8 tiaA_gainbits_rev7[] = { 0, 1, 2, 3, 4, 4, 4, 4, 4, 4 };
-	s8 *tia_gainbits;
-	u16 rfseqA_init_gain_rev7[] = { 0x624f, 0x624f };
-	u16 *rfseq_init_gain;
+	static const s8 lna1G_gain_db_rev7[] = { 9, 14, 19, 24 };
+	const s8 *lna1_gain_db = NULL;
+	const s8 *lna1_gain_db_2 = NULL;
+	const s8 *lna2_gain_db = NULL;
+	static const s8 tiaA_gain_db_rev7[] = { -9, -6, -3, 0, 3, 3, 3, 3, 3, 3 };
+	const s8 *tia_gain_db;
+	static const s8 tiaA_gainbits_rev7[] = { 0, 1, 2, 3, 4, 4, 4, 4, 4, 4 };
+	const s8 *tia_gainbits;
+	static const u16 rfseqA_init_gain_rev7[] = { 0x624f, 0x624f };
+	const u16 *rfseq_init_gain;
 	u16 init_gaincode;
 	u16 clip1hi_gaincode;
 	u16 clip1md_gaincode = 0;
@@ -15310,10 +15310,9 @@ static void wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 
 			if ((freq <= 5080) || (freq == 5825)) {
 
-				s8 lna1A_gain_db_rev7[] = { 11, 16, 20, 24 };
-				s8 lna1A_gain_db_2_rev7[] = {
-					11, 17, 22, 25};
-				s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
+				static const s8 lna1A_gain_db_rev7[] = { 11, 16, 20, 24 };
+				static const s8 lna1A_gain_db_2_rev7[] = { 11, 17, 22, 25};
+				static const s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
 
 				crsminu_th = 0x3e;
 				lna1_gain_db = lna1A_gain_db_rev7;
@@ -15321,10 +15320,9 @@ static void wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 				lna2_gain_db = lna2A_gain_db_rev7;
 			} else if ((freq >= 5500) && (freq <= 5700)) {
 
-				s8 lna1A_gain_db_rev7[] = { 11, 17, 21, 25 };
-				s8 lna1A_gain_db_2_rev7[] = {
-					12, 18, 22, 26};
-				s8 lna2A_gain_db_rev7[] = { 1, 8, 12, 16 };
+				static const s8 lna1A_gain_db_rev7[] = { 11, 17, 21, 25 };
+				static const s8 lna1A_gain_db_2_rev7[] = { 12, 18, 22, 26};
+				static const s8 lna2A_gain_db_rev7[] = { 1, 8, 12, 16 };
 
 				crsminu_th = 0x45;
 				clip1md_gaincode_B = 0x14;
@@ -15335,10 +15333,9 @@ static void wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 				lna2_gain_db = lna2A_gain_db_rev7;
 			} else {
 
-				s8 lna1A_gain_db_rev7[] = { 12, 18, 22, 26 };
-				s8 lna1A_gain_db_2_rev7[] = {
-					12, 18, 22, 26};
-				s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
+				static const s8 lna1A_gain_db_rev7[] = { 12, 18, 22, 26 };
+				static const s8 lna1A_gain_db_2_rev7[] = { 12, 18, 22, 26};
+				static const s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
 
 				crsminu_th = 0x41;
 				lna1_gain_db = lna1A_gain_db_rev7;
@@ -15450,65 +15447,65 @@ static void wlc_phy_workarounds_nphy_gainctrl(struct brcms_phy *pi)
 		NPHY_RFSEQ_CMD_CLR_HIQ_DIS,
 		NPHY_RFSEQ_CMD_SET_HPF_BW
 	};
-	u8 rfseq_updategainu_dlys[] = { 10, 30, 1 };
-	s8 lna1G_gain_db[] = { 7, 11, 16, 23 };
-	s8 lna1G_gain_db_rev4[] = { 8, 12, 17, 25 };
-	s8 lna1G_gain_db_rev5[] = { 9, 13, 18, 26 };
-	s8 lna1G_gain_db_rev6[] = { 8, 13, 18, 25 };
-	s8 lna1G_gain_db_rev6_224B0[] = { 10, 14, 19, 27 };
-	s8 lna1A_gain_db[] = { 7, 11, 17, 23 };
-	s8 lna1A_gain_db_rev4[] = { 8, 12, 18, 23 };
-	s8 lna1A_gain_db_rev5[] = { 6, 10, 16, 21 };
-	s8 lna1A_gain_db_rev6[] = { 6, 10, 16, 21 };
-	s8 *lna1_gain_db = NULL;
-	s8 lna2G_gain_db[] = { -5, 6, 10, 14 };
-	s8 lna2G_gain_db_rev5[] = { -3, 7, 11, 16 };
-	s8 lna2G_gain_db_rev6[] = { -5, 6, 10, 14 };
-	s8 lna2G_gain_db_rev6_224B0[] = { -5, 6, 10, 15 };
-	s8 lna2A_gain_db[] = { -6, 2, 6, 10 };
-	s8 lna2A_gain_db_rev4[] = { -5, 2, 6, 10 };
-	s8 lna2A_gain_db_rev5[] = { -7, 0, 4, 8 };
-	s8 lna2A_gain_db_rev6[] = { -7, 0, 4, 8 };
-	s8 *lna2_gain_db = NULL;
-	s8 tiaG_gain_db[] = {
+	static const u8 rfseq_updategainu_dlys[] = { 10, 30, 1 };
+	static const s8 lna1G_gain_db[] = { 7, 11, 16, 23 };
+	static const s8 lna1G_gain_db_rev4[] = { 8, 12, 17, 25 };
+	static const s8 lna1G_gain_db_rev5[] = { 9, 13, 18, 26 };
+	static const s8 lna1G_gain_db_rev6[] = { 8, 13, 18, 25 };
+	static const s8 lna1G_gain_db_rev6_224B0[] = { 10, 14, 19, 27 };
+	static const s8 lna1A_gain_db[] = { 7, 11, 17, 23 };
+	static const s8 lna1A_gain_db_rev4[] = { 8, 12, 18, 23 };
+	static const s8 lna1A_gain_db_rev5[] = { 6, 10, 16, 21 };
+	static const s8 lna1A_gain_db_rev6[] = { 6, 10, 16, 21 };
+	const s8 *lna1_gain_db = NULL;
+	static const s8 lna2G_gain_db[] = { -5, 6, 10, 14 };
+	static const s8 lna2G_gain_db_rev5[] = { -3, 7, 11, 16 };
+	static const s8 lna2G_gain_db_rev6[] = { -5, 6, 10, 14 };
+	static const s8 lna2G_gain_db_rev6_224B0[] = { -5, 6, 10, 15 };
+	static const s8 lna2A_gain_db[] = { -6, 2, 6, 10 };
+	static const s8 lna2A_gain_db_rev4[] = { -5, 2, 6, 10 };
+	static const s8 lna2A_gain_db_rev5[] = { -7, 0, 4, 8 };
+	static const s8 lna2A_gain_db_rev6[] = { -7, 0, 4, 8 };
+	const s8 *lna2_gain_db = NULL;
+	static const s8 tiaG_gain_db[] = {
 		0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A };
-	s8 tiaA_gain_db[] = {
+	static const s8 tiaA_gain_db[] = {
 		0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 };
-	s8 tiaA_gain_db_rev4[] = {
+	static const s8 tiaA_gain_db_rev4[] = {
 		0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-	s8 tiaA_gain_db_rev5[] = {
+	static const s8 tiaA_gain_db_rev5[] = {
 		0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-	s8 tiaA_gain_db_rev6[] = {
+	static const s8 tiaA_gain_db_rev6[] = {
 		0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-	s8 *tia_gain_db;
-	s8 tiaG_gainbits[] = {
+	const s8 *tia_gain_db;
+	static const s8 tiaG_gainbits[] = {
 		0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03 };
-	s8 tiaA_gainbits[] = {
+	static const s8 tiaA_gainbits[] = {
 		0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06 };
-	s8 tiaA_gainbits_rev4[] = {
+	static const s8 tiaA_gainbits_rev4[] = {
 		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-	s8 tiaA_gainbits_rev5[] = {
+	static const s8 tiaA_gainbits_rev5[] = {
 		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-	s8 tiaA_gainbits_rev6[] = {
+	static const s8 tiaA_gainbits_rev6[] = {
 		0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-	s8 *tia_gainbits;
-	s8 lpf_gain_db[] = { 0x00, 0x06, 0x0c, 0x12, 0x12, 0x12 };
-	s8 lpf_gainbits[] = { 0x00, 0x01, 0x02, 0x03, 0x03, 0x03 };
-	u16 rfseqG_init_gain[] = { 0x613f, 0x613f, 0x613f, 0x613f };
-	u16 rfseqG_init_gain_rev4[] = { 0x513f, 0x513f, 0x513f, 0x513f };
-	u16 rfseqG_init_gain_rev5[] = { 0x413f, 0x413f, 0x413f, 0x413f };
-	u16 rfseqG_init_gain_rev5_elna[] = {
+	const s8 *tia_gainbits;
+	static const s8 lpf_gain_db[] = { 0x00, 0x06, 0x0c, 0x12, 0x12, 0x12 };
+	static const s8 lpf_gainbits[] = { 0x00, 0x01, 0x02, 0x03, 0x03, 0x03 };
+	static const u16 rfseqG_init_gain[] = { 0x613f, 0x613f, 0x613f, 0x613f };
+	static const u16 rfseqG_init_gain_rev4[] = { 0x513f, 0x513f, 0x513f, 0x513f };
+	static const u16 rfseqG_init_gain_rev5[] = { 0x413f, 0x413f, 0x413f, 0x413f };
+	static const u16 rfseqG_init_gain_rev5_elna[] = {
 		0x013f, 0x013f, 0x013f, 0x013f };
-	u16 rfseqG_init_gain_rev6[] = { 0x513f, 0x513f };
-	u16 rfseqG_init_gain_rev6_224B0[] = { 0x413f, 0x413f };
-	u16 rfseqG_init_gain_rev6_elna[] = { 0x113f, 0x113f };
-	u16 rfseqA_init_gain[] = { 0x516f, 0x516f, 0x516f, 0x516f };
-	u16 rfseqA_init_gain_rev4[] = { 0x614f, 0x614f, 0x614f, 0x614f };
-	u16 rfseqA_init_gain_rev4_elna[] = {
+	static const u16 rfseqG_init_gain_rev6[] = { 0x513f, 0x513f };
+	static const u16 rfseqG_init_gain_rev6_224B0[] = { 0x413f, 0x413f };
+	static const u16 rfseqG_init_gain_rev6_elna[] = { 0x113f, 0x113f };
+	static const u16 rfseqA_init_gain[] = { 0x516f, 0x516f, 0x516f, 0x516f };
+	static const u16 rfseqA_init_gain_rev4[] = { 0x614f, 0x614f, 0x614f, 0x614f };
+	static const u16 rfseqA_init_gain_rev4_elna[] = {
 		0x314f, 0x314f, 0x314f, 0x314f };
-	u16 rfseqA_init_gain_rev5[] = { 0x714f, 0x714f, 0x714f, 0x714f };
-	u16 rfseqA_init_gain_rev6[] = { 0x714f, 0x714f };
-	u16 *rfseq_init_gain;
+	static const u16 rfseqA_init_gain_rev5[] = { 0x714f, 0x714f, 0x714f, 0x714f };
+	static const u16 rfseqA_init_gain_rev6[] = { 0x714f, 0x714f };
+	const u16 *rfseq_init_gain;
 	u16 initG_gaincode = 0x627e;
 	u16 initG_gaincode_rev4 = 0x527e;
 	u16 initG_gaincode_rev5 = 0x427e;
@@ -15538,10 +15535,10 @@ static void wlc_phy_workarounds_nphy_gainctrl(struct brcms_phy *pi)
 	u16 clip1mdA_gaincode_rev6 = 0x2084;
 	u16 clip1md_gaincode = 0;
 	u16 clip1loG_gaincode = 0x0074;
-	u16 clip1loG_gaincode_rev5[] = {
+	static const u16 clip1loG_gaincode_rev5[] = {
 		0x0062, 0x0064, 0x006a, 0x106a, 0x106c, 0x1074, 0x107c, 0x207c
 	};
-	u16 clip1loG_gaincode_rev6[] = {
+	static const u16 clip1loG_gaincode_rev6[] = {
 		0x106a, 0x106c, 0x1074, 0x107c, 0x007e, 0x107e, 0x207e, 0x307e
 	};
 	u16 clip1loG_gaincode_rev6_224B0 = 0x1074;
@@ -16066,7 +16063,7 @@ static void wlc_phy_workarounds_nphy_gainctrl(struct brcms_phy *pi)
 
 static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 {
-	u8 rfseq_rx2tx_events[] = {
+	static const u8 rfseq_rx2tx_events[] = {
 		NPHY_RFSEQ_CMD_NOP,
 		NPHY_RFSEQ_CMD_RXG_FBW,
 		NPHY_RFSEQ_CMD_TR_SWITCH,
@@ -16076,7 +16073,7 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 		NPHY_RFSEQ_CMD_EXT_PA
 	};
 	u8 rfseq_rx2tx_dlys[] = { 8, 6, 6, 2, 4, 60, 1 };
-	u8 rfseq_tx2rx_events[] = {
+	static const u8 rfseq_tx2rx_events[] = {
 		NPHY_RFSEQ_CMD_NOP,
 		NPHY_RFSEQ_CMD_EXT_PA,
 		NPHY_RFSEQ_CMD_TX_GAIN,
@@ -16085,8 +16082,8 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 		NPHY_RFSEQ_CMD_RXG_FBW,
 		NPHY_RFSEQ_CMD_CLR_HIQ_DIS
 	};
-	u8 rfseq_tx2rx_dlys[] = { 8, 6, 2, 4, 4, 6, 1 };
-	u8 rfseq_tx2rx_events_rev3[] = {
+	static const u8 rfseq_tx2rx_dlys[] = { 8, 6, 2, 4, 4, 6, 1 };
+	static const u8 rfseq_tx2rx_events_rev3[] = {
 		NPHY_REV3_RFSEQ_CMD_EXT_PA,
 		NPHY_REV3_RFSEQ_CMD_INT_PA_PU,
 		NPHY_REV3_RFSEQ_CMD_TX_GAIN,
@@ -16096,7 +16093,7 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 		NPHY_REV3_RFSEQ_CMD_CLR_HIQ_DIS,
 		NPHY_REV3_RFSEQ_CMD_END
 	};
-	u8 rfseq_tx2rx_dlys_rev3[] = { 8, 4, 2, 2, 4, 4, 6, 1 };
+	static const u8 rfseq_tx2rx_dlys_rev3[] = { 8, 4, 2, 2, 4, 4, 6, 1 };
 	u8 rfseq_rx2tx_events_rev3[] = {
 		NPHY_REV3_RFSEQ_CMD_NOP,
 		NPHY_REV3_RFSEQ_CMD_RXG_FBW,
@@ -16110,7 +16107,7 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 	};
 	u8 rfseq_rx2tx_dlys_rev3[] = { 8, 6, 6, 4, 4, 18, 42, 1, 1 };
 
-	u8 rfseq_rx2tx_events_rev3_ipa[] = {
+	static const u8 rfseq_rx2tx_events_rev3_ipa[] = {
 		NPHY_REV3_RFSEQ_CMD_NOP,
 		NPHY_REV3_RFSEQ_CMD_RXG_FBW,
 		NPHY_REV3_RFSEQ_CMD_TR_SWITCH,
@@ -16121,15 +16118,15 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 		NPHY_REV3_RFSEQ_CMD_INT_PA_PU,
 		NPHY_REV3_RFSEQ_CMD_END
 	};
-	u8 rfseq_rx2tx_dlys_rev3_ipa[] = { 8, 6, 6, 4, 4, 16, 43, 1, 1 };
-	u16 rfseq_rx2tx_dacbufpu_rev7[] = { 0x10f, 0x10f };
+	static const u8 rfseq_rx2tx_dlys_rev3_ipa[] = { 8, 6, 6, 4, 4, 16, 43, 1, 1 };
+	static const u16 rfseq_rx2tx_dacbufpu_rev7[] = { 0x10f, 0x10f };
 
 	s16 alpha0, alpha1, alpha2;
 	s16 beta0, beta1, beta2;
 	u32 leg_data_weights, ht_data_weights, nss1_data_weights,
 	    stbc_data_weights;
 	u8 chan_freq_range = 0;
-	u16 dac_control = 0x0002;
+	static const u16 dac_control = 0x0002;
 	u16 aux_adc_vmid_rev7_core0[] = { 0x8e, 0x96, 0x96, 0x96 };
 	u16 aux_adc_vmid_rev7_core1[] = { 0x8f, 0x9f, 0x9f, 0x96 };
 	u16 aux_adc_vmid_rev4[] = { 0xa2, 0xb4, 0xb4, 0x89 };
@@ -16139,8 +16136,8 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 	u16 aux_adc_gain_rev4[] = { 0x02, 0x02, 0x02, 0x00 };
 	u16 aux_adc_gain_rev3[] = { 0x02, 0x02, 0x02, 0x00 };
 	u16 *aux_adc_gain;
-	u16 sk_adc_vmid[] = { 0xb4, 0xb4, 0xb4, 0x24 };
-	u16 sk_adc_gain[] = { 0x02, 0x02, 0x02, 0x02 };
+	static const u16 sk_adc_vmid[] = { 0xb4, 0xb4, 0xb4, 0x24 };
+	static const u16 sk_adc_gain[] = { 0x02, 0x02, 0x02, 0x02 };
 	s32 min_nvar_val = 0x18d;
 	s32 min_nvar_offset_6mbps = 20;
 	u8 pdetrange;
@@ -16151,9 +16148,9 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 	u16 rfseq_rx2tx_lpf_h_hpc_rev7 = 0x77;
 	u16 rfseq_tx2rx_lpf_h_hpc_rev7 = 0x77;
 	u16 rfseq_pktgn_lpf_h_hpc_rev7 = 0x77;
-	u16 rfseq_htpktgn_lpf_hpc_rev7[] = { 0x77, 0x11, 0x11 };
-	u16 rfseq_pktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
-	u16 rfseq_cckpktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
+	static const u16 rfseq_htpktgn_lpf_hpc_rev7[] = { 0x77, 0x11, 0x11 };
+	static const u16 rfseq_pktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
+	static const u16 rfseq_cckpktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
 	u16 ipalvlshift_3p3_war_en = 0;
 	u16 rccal_bcap_val, rccal_scap_val;
 	u16 rccal_tx20_11b_bcap = 0;
@@ -24291,13 +24288,13 @@ static void wlc_phy_update_txcal_ladder_nphy(struct brcms_phy *pi, u16 core)
 	u16 bbmult;
 	u16 tblentry;
 
-	struct nphy_txiqcal_ladder ladder_lo[] = {
+	static const struct nphy_txiqcal_ladder ladder_lo[] = {
 		{3, 0}, {4, 0}, {6, 0}, {9, 0}, {13, 0}, {18, 0},
 		{25, 0}, {25, 1}, {25, 2}, {25, 3}, {25, 4}, {25, 5},
 		{25, 6}, {25, 7}, {35, 7}, {50, 7}, {71, 7}, {100, 7}
 	};
 
-	struct nphy_txiqcal_ladder ladder_iq[] = {
+	static const struct nphy_txiqcal_ladder ladder_iq[] = {
 		{3, 0}, {4, 0}, {6, 0}, {9, 0}, {13, 0}, {18, 0},
 		{25, 0}, {35, 0}, {50, 0}, {71, 0}, {100, 0}, {100, 1},
 		{100, 2}, {100, 3}, {100, 4}, {100, 5}, {100, 6}, {100, 7}
@@ -25773,67 +25770,67 @@ wlc_phy_cal_txiqlo_nphy(struct brcms_phy *pi, struct nphy_txgains target_gain,
 	u16 cal_gain[2];
 	struct nphy_iqcal_params cal_params[2];
 	u32 tbl_len;
-	void *tbl_ptr;
+	const void *tbl_ptr;
 	bool ladder_updated[2];
 	u8 mphase_cal_lastphase = 0;
 	int bcmerror = 0;
 	bool phyhang_avoid_state = false;
 
-	u16 tbl_tx_iqlo_cal_loft_ladder_20[] = {
+	static const u16 tbl_tx_iqlo_cal_loft_ladder_20[] = {
 		0x0300, 0x0500, 0x0700, 0x0900, 0x0d00, 0x1100, 0x1900, 0x1901,
 		0x1902,
 		0x1903, 0x1904, 0x1905, 0x1906, 0x1907, 0x2407, 0x3207, 0x4607,
 		0x6407
 	};
 
-	u16 tbl_tx_iqlo_cal_iqimb_ladder_20[] = {
+	static const u16 tbl_tx_iqlo_cal_iqimb_ladder_20[] = {
 		0x0200, 0x0300, 0x0600, 0x0900, 0x0d00, 0x1100, 0x1900, 0x2400,
 		0x3200,
 		0x4600, 0x6400, 0x6401, 0x6402, 0x6403, 0x6404, 0x6405, 0x6406,
 		0x6407
 	};
 
-	u16 tbl_tx_iqlo_cal_loft_ladder_40[] = {
+	static const u16 tbl_tx_iqlo_cal_loft_ladder_40[] = {
 		0x0200, 0x0300, 0x0400, 0x0700, 0x0900, 0x0c00, 0x1200, 0x1201,
 		0x1202,
 		0x1203, 0x1204, 0x1205, 0x1206, 0x1207, 0x1907, 0x2307, 0x3207,
 		0x4707
 	};
 
-	u16 tbl_tx_iqlo_cal_iqimb_ladder_40[] = {
+	static const u16 tbl_tx_iqlo_cal_iqimb_ladder_40[] = {
 		0x0100, 0x0200, 0x0400, 0x0700, 0x0900, 0x0c00, 0x1200, 0x1900,
 		0x2300,
 		0x3200, 0x4700, 0x4701, 0x4702, 0x4703, 0x4704, 0x4705, 0x4706,
 		0x4707
 	};
 
-	u16 tbl_tx_iqlo_cal_startcoefs[] = {
+	static const u16 tbl_tx_iqlo_cal_startcoefs[] = {
 		0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 		0x0000
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_fullcal[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_fullcal[] = {
 		0x8123, 0x8264, 0x8086, 0x8245, 0x8056,
 		0x9123, 0x9264, 0x9086, 0x9245, 0x9056
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_recal[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_recal[] = {
 		0x8101, 0x8253, 0x8053, 0x8234, 0x8034,
 		0x9101, 0x9253, 0x9053, 0x9234, 0x9034
 	};
 
-	u16 tbl_tx_iqlo_cal_startcoefs_nphyrev3[] = {
+	static const u16 tbl_tx_iqlo_cal_startcoefs_nphyrev3[] = {
 		0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 		0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
 		0x0000
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[] = {
 		0x8434, 0x8334, 0x8084, 0x8267, 0x8056, 0x8234,
 		0x9434, 0x9334, 0x9084, 0x9267, 0x9056, 0x9234
 	};
 
-	u16 tbl_tx_iqlo_cal_cmds_recal_nphyrev3[] = {
+	static const u16 tbl_tx_iqlo_cal_cmds_recal_nphyrev3[] = {
 		0x8423, 0x8323, 0x8073, 0x8256, 0x8045, 0x8223,
 		0x9423, 0x9323, 0x9073, 0x9256, 0x9045, 0x9223
 	};
diff --git a/drivers/net/wireless/cisco/airo.h b/drivers/net/wireless/cisco/airo.h
index e480adf86be6..8a02977a2e2b 100644
--- a/drivers/net/wireless/cisco/airo.h
+++ b/drivers/net/wireless/cisco/airo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AIRO_H_
 #define _AIRO_H_
 
diff --git a/drivers/net/wireless/intel/ipw2x00/Makefile b/drivers/net/wireless/intel/ipw2x00/Makefile
index aecd2cff462b..e1ec50359dff 100644
--- a/drivers/net/wireless/intel/ipw2x00/Makefile
+++ b/drivers/net/wireless/intel/ipw2x00/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Intel Centrino wireless drivers
 #
diff --git a/drivers/net/wireless/intel/iwlegacy/Makefile b/drivers/net/wireless/intel/iwlegacy/Makefile
index c826a6b985bb..c5ad0453b334 100644
--- a/drivers/net/wireless/intel/iwlegacy/Makefile
+++ b/drivers/net/wireless/intel/iwlegacy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IWLEGACY)	+= iwlegacy.o
 iwlegacy-objs 		:= common.o
 iwlegacy-$(CONFIG_IWLEGACY_DEBUGFS) += debug.o
diff --git a/drivers/net/wireless/intel/iwlwifi/Makefile b/drivers/net/wireless/intel/iwlwifi/Makefile
index 35a32a3ec882..595b26b66bfc 100644
--- a/drivers/net/wireless/intel/iwlwifi/Makefile
+++ b/drivers/net/wireless/intel/iwlwifi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # common
 obj-$(CONFIG_IWLWIFI)	+= iwlwifi.o
 iwlwifi-objs		+= iwl-io.o
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/7000.c b/drivers/net/wireless/intel/iwlwifi/cfg/7000.c
index 45e2efc70d19..ce741beec1fc 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/7000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/7000.c
@@ -309,6 +309,7 @@ const struct iwl_cfg iwl3168_2ac_cfg = {
 	.nvm_calib_ver = IWL3168_TX_POWER_VERSION,
 	.pwr_tx_backoffs = iwl7265_pwr_tx_backoffs,
 	.dccm_len = IWL7265_DCCM_LEN,
+	.nvm_type = IWL_NVM_SDP,
 };
 
 const struct iwl_cfg iwl7265_2ac_cfg = {
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/8000.c b/drivers/net/wireless/intel/iwlwifi/cfg/8000.c
index 2e6c52664cee..c2a5936ccede 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/8000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/8000.c
@@ -164,7 +164,7 @@ static const struct iwl_tt_params iwl8000_tt_params = {
 	.default_nvm_file_C_step = DEFAULT_NVM_FILE_FAMILY_8000C,	\
 	.thermal_params = &iwl8000_tt_params,				\
 	.apmg_not_supported = true,					\
-	.ext_nvm = true,						\
+	.nvm_type = IWL_NVM_EXT,					\
 	.dbgc_supported = true
 
 #define IWL_DEVICE_8000							\
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/9000.c b/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
index 2babe0a1f18b..e8b5ff42f5a8 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/9000.c
@@ -148,7 +148,7 @@ static const struct iwl_tt_params iwl9000_tt_params = {
 	.vht_mu_mimo_supported = true,					\
 	.mac_addr_from_csr = true,					\
 	.rf_id = true,							\
-	.ext_nvm = true,						\
+	.nvm_type = IWL_NVM_EXT,					\
 	.dbgc_supported = true
 
 const struct iwl_cfg iwl9160_2ac_cfg = {
diff --git a/drivers/net/wireless/intel/iwlwifi/cfg/a000.c b/drivers/net/wireless/intel/iwlwifi/cfg/a000.c
index 76ba1f8bc72f..a440140ed8dd 100644
--- a/drivers/net/wireless/intel/iwlwifi/cfg/a000.c
+++ b/drivers/net/wireless/intel/iwlwifi/cfg/a000.c
@@ -133,7 +133,7 @@ static const struct iwl_ht_params iwl_a000_ht_params = {
 	.use_tfh = true,						\
 	.rf_id = true,							\
 	.gen2 = true,							\
-	.ext_nvm = true,						\
+	.nvm_type = IWL_NVM_EXT,					\
 	.dbgc_supported = true
 
 const struct iwl_cfg iwla000_2ac_cfg_hr = {
diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/Makefile b/drivers/net/wireless/intel/iwlwifi/dvm/Makefile
index b256a354953a..702d42b2d452 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/Makefile
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # DVM
 obj-$(CONFIG_IWLDVM)	+= iwldvm.o
 iwldvm-objs		+= main.o rs.o mac80211.o ucode.o tx.o
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
index 00bc7a25dece..3fd07bc80f54 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/api/nvm-reg.h
@@ -108,6 +108,7 @@ enum iwl_nvm_access_target {
  * @NVM_SECTION_TYPE_REGULATORY: regulatory section
  * @NVM_SECTION_TYPE_CALIBRATION: calibration section
  * @NVM_SECTION_TYPE_PRODUCTION: production section
+ * @NVM_SECTION_TYPE_REGULATORY_SDP: regulatory section used by 3168 series
  * @NVM_SECTION_TYPE_MAC_OVERRIDE: MAC override section
  * @NVM_SECTION_TYPE_PHY_SKU: PHY SKU section
  * @NVM_MAX_NUM_SECTIONS: number of sections
@@ -117,6 +118,7 @@ enum iwl_nvm_section_type {
 	NVM_SECTION_TYPE_REGULATORY = 3,
 	NVM_SECTION_TYPE_CALIBRATION = 4,
 	NVM_SECTION_TYPE_PRODUCTION = 5,
+	NVM_SECTION_TYPE_REGULATORY_SDP = 8,
 	NVM_SECTION_TYPE_MAC_OVERRIDE = 11,
 	NVM_SECTION_TYPE_PHY_SKU = 12,
 	NVM_MAX_NUM_SECTIONS = 13,
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
index 6afc7a799892..f5dd7d83cd0a 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.c
@@ -1086,7 +1086,7 @@ void iwl_fw_error_dump_wk(struct work_struct *work)
 
 	if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
 		/* stop recording */
-		iwl_set_bits_prph(fwrt->trans, MON_BUFF_SAMPLE_CTL, 0x100);
+		iwl_fw_dbg_stop_recording(fwrt);
 
 		iwl_fw_error_dump(fwrt);
 
@@ -1104,10 +1104,7 @@ void iwl_fw_error_dump_wk(struct work_struct *work)
 		u32 in_sample = iwl_read_prph(fwrt->trans, DBGC_IN_SAMPLE);
 		u32 out_ctrl = iwl_read_prph(fwrt->trans, DBGC_OUT_CTRL);
 
-		/* stop recording */
-		iwl_write_prph(fwrt->trans, DBGC_IN_SAMPLE, 0);
-		udelay(100);
-		iwl_write_prph(fwrt->trans, DBGC_OUT_CTRL, 0);
+		iwl_fw_dbg_stop_recording(fwrt);
 		/* wait before we collect the data till the DBGC stop */
 		udelay(500);
 
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
index 0f810ea89d31..9c889a32fe24 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/dbg.h
@@ -68,6 +68,8 @@
 #include <linux/workqueue.h>
 #include <net/cfg80211.h>
 #include "runtime.h"
+#include "iwl-prph.h"
+#include "iwl-io.h"
 #include "file.h"
 #include "error-dump.h"
 
@@ -194,8 +196,21 @@ _iwl_fw_dbg_trigger_simple_stop(struct iwl_fw_runtime *fwrt,
 					iwl_fw_dbg_get_trigger((fwrt)->fw,\
 							       (trig)))
 
+static inline void iwl_fw_dbg_stop_recording(struct iwl_fw_runtime *fwrt)
+{
+	if (fwrt->trans->cfg->device_family == IWL_DEVICE_FAMILY_7000) {
+		iwl_set_bits_prph(fwrt->trans, MON_BUFF_SAMPLE_CTL, 0x100);
+	} else {
+		iwl_write_prph(fwrt->trans, DBGC_IN_SAMPLE, 0);
+		udelay(100);
+		iwl_write_prph(fwrt->trans, DBGC_OUT_CTRL, 0);
+	}
+}
+
 static inline void iwl_fw_dump_conf_clear(struct iwl_fw_runtime *fwrt)
 {
+	iwl_fw_dbg_stop_recording(fwrt);
+
 	fwrt->dump.conf = FW_DBG_INVALID;
 }
 
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-config.h b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
index 3e057b539d5b..71cb1ecde0f7 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-config.h
@@ -108,6 +108,18 @@ enum iwl_led_mode {
 	IWL_LED_DISABLE,
 };
 
+/**
+ * enum iwl_nvm_type - nvm formats
+ * @IWL_NVM: the regular format
+ * @IWL_NVM_EXT: extended NVM format
+ * @IWL_NVM_SDP: NVM format used by 3168 series
+ */
+enum iwl_nvm_type {
+	IWL_NVM,
+	IWL_NVM_EXT,
+	IWL_NVM_SDP,
+};
+
 /*
  * This is the threshold value of plcp error rate per 100mSecs.  It is
  * used to set and check for the validity of plcp_delta.
@@ -320,7 +332,7 @@ struct iwl_pwr_tx_backoff {
  * @integrated: discrete or integrated
  * @gen2: a000 and on transport operation
  * @cdb: CDB support
- * @ext_nvm: extended NVM format
+ * @nvm_type: see &enum iwl_nvm_type
  *
  * We enable the driver to be backward compatible wrt. hardware features.
  * API differences in uCode shouldn't be handled here but through TLVs
@@ -342,6 +354,7 @@ struct iwl_cfg {
 	const struct iwl_tt_params *thermal_params;
 	enum iwl_device_family device_family;
 	enum iwl_led_mode led_mode;
+	enum iwl_nvm_type nvm_type;
 	u32 max_data_size;
 	u32 max_inst_size;
 	netdev_features_t features;
@@ -369,7 +382,6 @@ struct iwl_cfg {
 	    use_tfh:1,
 	    gen2:1,
 	    cdb:1,
-	    ext_nvm:1,
 	    dbgc_supported:1;
 	u8 valid_tx_ant;
 	u8 valid_rx_ant;
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index 3014beef4873..c3a5d8ccc95e 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -77,7 +77,7 @@
 #include "iwl-csr.h"
 
 /* NVM offsets (in words) definitions */
-enum wkp_nvm_offsets {
+enum nvm_offsets {
 	/* NVM HW-Section offset (in words) definitions */
 	SUBSYSTEM_ID = 0x0A,
 	HW_ADDR = 0x15,
@@ -92,7 +92,10 @@ enum wkp_nvm_offsets {
 
 	/* NVM calibration section offset (in words) definitions */
 	NVM_CALIB_SECTION = 0x2B8,
-	XTAL_CALIB = 0x316 - NVM_CALIB_SECTION
+	XTAL_CALIB = 0x316 - NVM_CALIB_SECTION,
+
+	/* NVM REGULATORY -Section offset (in words) definitions */
+	NVM_CHANNELS_SDP = 0,
 };
 
 enum ext_nvm_offsets {
@@ -206,8 +209,36 @@ enum iwl_nvm_channel_flags {
 	NVM_CHANNEL_DC_HIGH		= BIT(12),
 };
 
+static inline void iwl_nvm_print_channel_flags(struct device *dev, u32 level,
+					       int chan, u16 flags)
+{
 #define CHECK_AND_PRINT_I(x)	\
-	((ch_flags & NVM_CHANNEL_##x) ? # x " " : "")
+	((flags & NVM_CHANNEL_##x) ? " " #x : "")
+
+	if (!(flags & NVM_CHANNEL_VALID)) {
+		IWL_DEBUG_DEV(dev, level, "Ch. %d: 0x%x: No traffic\n",
+			      chan, flags);
+		return;
+	}
+
+	/* Note: already can print up to 101 characters, 110 is the limit! */
+	IWL_DEBUG_DEV(dev, level,
+		      "Ch. %d: 0x%x:%s%s%s%s%s%s%s%s%s%s%s%s\n",
+		      chan, flags,
+		      CHECK_AND_PRINT_I(VALID),
+		      CHECK_AND_PRINT_I(IBSS),
+		      CHECK_AND_PRINT_I(ACTIVE),
+		      CHECK_AND_PRINT_I(RADAR),
+		      CHECK_AND_PRINT_I(INDOOR_ONLY),
+		      CHECK_AND_PRINT_I(GO_CONCURRENT),
+		      CHECK_AND_PRINT_I(UNIFORM),
+		      CHECK_AND_PRINT_I(20MHZ),
+		      CHECK_AND_PRINT_I(40MHZ),
+		      CHECK_AND_PRINT_I(80MHZ),
+		      CHECK_AND_PRINT_I(160MHZ),
+		      CHECK_AND_PRINT_I(DC_HIGH));
+#undef CHECK_AND_PRINT_I
+}
 
 static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, bool is_5ghz,
 				 u16 nvm_flags, const struct iwl_cfg *cfg)
@@ -215,7 +246,7 @@ static u32 iwl_get_channel_flags(u8 ch_num, int ch_idx, bool is_5ghz,
 	u32 flags = IEEE80211_CHAN_NO_HT40;
 	u32 last_5ghz_ht = LAST_5GHZ_HT;
 
-	if (cfg->ext_nvm)
+	if (cfg->nvm_type == IWL_NVM_EXT)
 		last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
 
 	if (!is_5ghz && (nvm_flags & NVM_CHANNEL_40MHZ)) {
@@ -268,7 +299,7 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
 	int num_of_ch, num_2ghz_channels;
 	const u8 *nvm_chan;
 
-	if (!cfg->ext_nvm) {
+	if (cfg->nvm_type != IWL_NVM_EXT) {
 		num_of_ch = IWL_NUM_CHANNELS;
 		nvm_chan = &iwl_nvm_channels[0];
 		num_2ghz_channels = NUM_2GHZ_CHANNELS;
@@ -302,12 +333,8 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
 			 * supported, hence we still want to add them to
 			 * the list of supported channels to cfg80211.
 			 */
-			IWL_DEBUG_EEPROM(dev,
-					 "Ch. %d Flags %x [%sGHz] - No traffic\n",
-					 nvm_chan[ch_idx],
-					 ch_flags,
-					 (ch_idx >= num_2ghz_channels) ?
-					 "5.2" : "2.4");
+			iwl_nvm_print_channel_flags(dev, IWL_DL_EEPROM,
+						    nvm_chan[ch_idx], ch_flags);
 			continue;
 		}
 
@@ -337,27 +364,10 @@ static int iwl_init_channel_map(struct device *dev, const struct iwl_cfg *cfg,
 		else
 			channel->flags = 0;
 
-		IWL_DEBUG_EEPROM(dev,
-				 "Ch. %d [%sGHz] flags 0x%x %s%s%s%s%s%s%s%s%s%s%s%s(%ddBm): Ad-Hoc %ssupported\n",
-				 channel->hw_value,
-				 is_5ghz ? "5.2" : "2.4",
-				 ch_flags,
-				 CHECK_AND_PRINT_I(VALID),
-				 CHECK_AND_PRINT_I(IBSS),
-				 CHECK_AND_PRINT_I(ACTIVE),
-				 CHECK_AND_PRINT_I(RADAR),
-				 CHECK_AND_PRINT_I(INDOOR_ONLY),
-				 CHECK_AND_PRINT_I(GO_CONCURRENT),
-				 CHECK_AND_PRINT_I(UNIFORM),
-				 CHECK_AND_PRINT_I(20MHZ),
-				 CHECK_AND_PRINT_I(40MHZ),
-				 CHECK_AND_PRINT_I(80MHZ),
-				 CHECK_AND_PRINT_I(160MHZ),
-				 CHECK_AND_PRINT_I(DC_HIGH),
-				 channel->max_power,
-				 ((ch_flags & NVM_CHANNEL_IBSS) &&
-				  !(ch_flags & NVM_CHANNEL_RADAR))
-					? "" : "not ");
+		iwl_nvm_print_channel_flags(dev, IWL_DL_EEPROM,
+					    channel->hw_value, ch_flags);
+		IWL_DEBUG_EEPROM(dev, "Ch. %d: %ddBm\n",
+				 channel->hw_value, channel->max_power);
 	}
 
 	return n_channels;
@@ -484,7 +494,7 @@ IWL_EXPORT_SYMBOL(iwl_init_sbands);
 static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
 		       const __le16 *phy_sku)
 {
-	if (!cfg->ext_nvm)
+	if (cfg->nvm_type != IWL_NVM_EXT)
 		return le16_to_cpup(nvm_sw + SKU);
 
 	return le32_to_cpup((__le32 *)(phy_sku + SKU_FAMILY_8000));
@@ -492,7 +502,7 @@ static int iwl_get_sku(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
 
 static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
 {
-	if (!cfg->ext_nvm)
+	if (cfg->nvm_type != IWL_NVM_EXT)
 		return le16_to_cpup(nvm_sw + NVM_VERSION);
 	else
 		return le32_to_cpup((__le32 *)(nvm_sw +
@@ -502,7 +512,7 @@ static int iwl_get_nvm_version(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
 static int iwl_get_radio_cfg(const struct iwl_cfg *cfg, const __le16 *nvm_sw,
 			     const __le16 *phy_sku)
 {
-	if (!cfg->ext_nvm)
+	if (cfg->nvm_type != IWL_NVM_EXT)
 		return le16_to_cpup(nvm_sw + RADIO_CFG);
 
 	return le32_to_cpup((__le32 *)(phy_sku + RADIO_CFG_FAMILY_EXT_NVM));
@@ -513,7 +523,7 @@ static int iwl_get_n_hw_addrs(const struct iwl_cfg *cfg, const __le16 *nvm_sw)
 {
 	int n_hw_addr;
 
-	if (!cfg->ext_nvm)
+	if (cfg->nvm_type != IWL_NVM_EXT)
 		return le16_to_cpup(nvm_sw + N_HW_ADDRS);
 
 	n_hw_addr = le32_to_cpup((__le32 *)(nvm_sw + N_HW_ADDRS_FAMILY_8000));
@@ -525,7 +535,7 @@ static void iwl_set_radio_cfg(const struct iwl_cfg *cfg,
 			      struct iwl_nvm_data *data,
 			      u32 radio_cfg)
 {
-	if (!cfg->ext_nvm) {
+	if (cfg->nvm_type != IWL_NVM_EXT) {
 		data->radio_cfg_type = NVM_RF_CFG_TYPE_MSK(radio_cfg);
 		data->radio_cfg_step = NVM_RF_CFG_STEP_MSK(radio_cfg);
 		data->radio_cfg_dash = NVM_RF_CFG_DASH_MSK(radio_cfg);
@@ -634,7 +644,7 @@ static int iwl_set_hw_address(struct iwl_trans *trans,
 {
 	if (cfg->mac_addr_from_csr) {
 		iwl_set_hw_address_from_csr(trans, data);
-	} else if (!cfg->ext_nvm) {
+	} else if (cfg->nvm_type != IWL_NVM_EXT) {
 		const u8 *hw_addr = (const u8 *)(nvm_hw + HW_ADDR);
 
 		/* The byte order is little endian 16 bit, meaning 214365 */
@@ -706,7 +716,7 @@ iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	u16 lar_config;
 	const __le16 *ch_section;
 
-	if (!cfg->ext_nvm)
+	if (cfg->nvm_type != IWL_NVM_EXT)
 		data = kzalloc(sizeof(*data) +
 			       sizeof(struct ieee80211_channel) *
 			       IWL_NUM_CHANNELS,
@@ -740,7 +750,7 @@ iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 
 	data->n_hw_addrs = iwl_get_n_hw_addrs(cfg, nvm_sw);
 
-	if (!cfg->ext_nvm) {
+	if (cfg->nvm_type != IWL_NVM_EXT) {
 		/* Checking for required sections */
 		if (!nvm_calib) {
 			IWL_ERR(trans,
@@ -748,11 +758,15 @@ iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 			kfree(data);
 			return NULL;
 		}
+
+		ch_section = cfg->nvm_type == IWL_NVM_SDP ?
+			     &regulatory[NVM_CHANNELS_SDP] :
+			     &nvm_sw[NVM_CHANNELS];
+
 		/* in family 8000 Xtal calibration values moved to OTP */
 		data->xtal_calib[0] = *(nvm_calib + XTAL_CALIB);
 		data->xtal_calib[1] = *(nvm_calib + XTAL_CALIB + 1);
 		lar_enabled = true;
-		ch_section = &nvm_sw[NVM_CHANNELS];
 	} else {
 		u16 lar_offset = data->nvm_version < 0xE39 ?
 				 NVM_LAR_OFFSET_OLD :
@@ -786,7 +800,7 @@ static u32 iwl_nvm_get_regdom_bw_flags(const u8 *nvm_chan,
 	u32 flags = NL80211_RRF_NO_HT40;
 	u32 last_5ghz_ht = LAST_5GHZ_HT;
 
-	if (cfg->ext_nvm)
+	if (cfg->nvm_type == IWL_NVM_EXT)
 		last_5ghz_ht = LAST_5GHZ_HT_FAMILY_8000;
 
 	if (ch_idx < NUM_2GHZ_CHANNELS &&
@@ -834,7 +848,7 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 	int ch_idx;
 	u16 ch_flags;
 	u32 reg_rule_flags, prev_reg_rule_flags = 0;
-	const u8 *nvm_chan = cfg->ext_nvm ?
+	const u8 *nvm_chan = cfg->nvm_type == IWL_NVM_EXT ?
 			     iwl_ext_nvm_channels : iwl_nvm_channels;
 	struct ieee80211_regdomain *regd;
 	int size_of_regd;
@@ -843,7 +857,7 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 	int center_freq, prev_center_freq = 0;
 	int valid_rules = 0;
 	bool new_rule;
-	int max_num_ch = cfg->ext_nvm ?
+	int max_num_ch = cfg->nvm_type == IWL_NVM_EXT ?
 			 IWL_NUM_CHANNELS_EXT : IWL_NUM_CHANNELS;
 
 	if (WARN_ON_ONCE(num_of_ch > NL80211_MAX_SUPP_REG_RULES))
@@ -873,12 +887,8 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 		new_rule = false;
 
 		if (!(ch_flags & NVM_CHANNEL_VALID)) {
-			IWL_DEBUG_DEV(dev, IWL_DL_LAR,
-				      "Ch. %d Flags %x [%sGHz] - No traffic\n",
-				      nvm_chan[ch_idx],
-				      ch_flags,
-				      (ch_idx >= NUM_2GHZ_CHANNELS) ?
-				      "5.2" : "2.4");
+			iwl_nvm_print_channel_flags(dev, IWL_DL_LAR,
+						    nvm_chan[ch_idx], ch_flags);
 			continue;
 		}
 
@@ -914,31 +924,8 @@ iwl_parse_nvm_mcc_info(struct device *dev, const struct iwl_cfg *cfg,
 		prev_center_freq = center_freq;
 		prev_reg_rule_flags = reg_rule_flags;
 
-		IWL_DEBUG_DEV(dev, IWL_DL_LAR,
-			      "Ch. %d [%sGHz] %s%s%s%s%s%s%s%s%s%s%s%s(0x%02x)\n",
-			      center_freq,
-			      band == NL80211_BAND_5GHZ ? "5.2" : "2.4",
-			      CHECK_AND_PRINT_I(VALID),
-			      CHECK_AND_PRINT_I(IBSS),
-			      CHECK_AND_PRINT_I(ACTIVE),
-			      CHECK_AND_PRINT_I(RADAR),
-			      CHECK_AND_PRINT_I(INDOOR_ONLY),
-			      CHECK_AND_PRINT_I(GO_CONCURRENT),
-			      CHECK_AND_PRINT_I(UNIFORM),
-			      CHECK_AND_PRINT_I(20MHZ),
-			      CHECK_AND_PRINT_I(40MHZ),
-			      CHECK_AND_PRINT_I(80MHZ),
-			      CHECK_AND_PRINT_I(160MHZ),
-			      CHECK_AND_PRINT_I(DC_HIGH),
-			      ch_flags);
-		IWL_DEBUG_DEV(dev, IWL_DL_LAR,
-			      "Ch. %d [%sGHz] reg_flags 0x%x: %s\n",
-			      center_freq,
-			      band == NL80211_BAND_5GHZ ? "5.2" : "2.4",
-			      reg_rule_flags,
-			      ((ch_flags & NVM_CHANNEL_ACTIVE) &&
-			       !(ch_flags & NVM_CHANNEL_RADAR))
-					 ? "Ad-Hoc" : "");
+		iwl_nvm_print_channel_flags(dev, IWL_DL_LAR,
+					    nvm_chan[ch_idx], ch_flags);
 	}
 
 	regd->n_reg_rules = valid_rules;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/Makefile b/drivers/net/wireless/intel/iwlwifi/mvm/Makefile
index 00e6737dda72..a47635c32c11 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/Makefile
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IWLMVM)   += iwlmvm.o
 iwlmvm-y += fw.o mac80211.o nvm.o ops.o phy-ctxt.o mac-ctxt.o
 iwlmvm-y += utils.o rx.o rxmq.o tx.o binding.o quota.o sta.o sf.o
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 5de19ea10575..b205a7bfb828 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -2167,7 +2167,7 @@ out:
 	 * 1. We are not using a unified image
 	 * 2. We are using a unified image but had an error while exiting D3
 	 */
-	set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
+	set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
 	set_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status);
 	/*
 	 * When switching images we return 1, which causes mac80211
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index 15f2d826bb4b..a9ac872226fd 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -1077,6 +1077,7 @@ static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
 	mvm->vif_count = 0;
 	mvm->rx_ba_sessions = 0;
 	mvm->fwrt.dump.conf = FW_DBG_INVALID;
+	mvm->monitor_on = false;
 
 	/* keep statistics ticking */
 	iwl_mvm_accu_radio_stats(mvm);
@@ -1437,6 +1438,9 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 		mvm->p2p_device_vif = vif;
 	}
 
+	if (vif->type == NL80211_IFTYPE_MONITOR)
+		mvm->monitor_on = true;
+
 	iwl_mvm_vif_dbgfs_register(mvm, vif);
 	goto out_unlock;
 
@@ -1526,6 +1530,9 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 	iwl_mvm_power_update_mac(mvm);
 	iwl_mvm_mac_ctxt_remove(mvm, vif);
 
+	if (vif->type == NL80211_IFTYPE_MONITOR)
+		mvm->monitor_on = false;
+
 out_release:
 	mutex_unlock(&mvm->mutex);
 }
@@ -1546,6 +1553,11 @@ static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
 	struct iwl_mvm_mc_iter_data *data = _data;
 	struct iwl_mvm *mvm = data->mvm;
 	struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
+	struct iwl_host_cmd hcmd = {
+		.id = MCAST_FILTER_CMD,
+		.flags = CMD_ASYNC,
+		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
+	};
 	int ret, len;
 
 	/* if we don't have free ports, mcast frames will be dropped */
@@ -1560,7 +1572,10 @@ static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
 	memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
 	len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
 
-	ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
+	hcmd.len[0] = len;
+	hcmd.data[0] = cmd;
+
+	ret = iwl_mvm_send_cmd(mvm, &hcmd);
 	if (ret)
 		IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
 }
@@ -1635,6 +1650,12 @@ static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
 	if (!cmd)
 		goto out;
 
+	if (changed_flags & FIF_ALLMULTI)
+		cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
+
+	if (cmd->pass_all)
+		cmd->count = 0;
+
 	iwl_mvm_recalc_multicast(mvm);
 out:
 	mutex_unlock(&mvm->mutex);
@@ -2563,7 +2584,7 @@ static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
 			 * queues, so we should never get a second deferred
 			 * frame for the RA/TID.
 			 */
-			iwl_mvm_start_mac_queues(mvm, info->hw_queue);
+			iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue));
 			ieee80211_free_txskb(mvm->hw, skb);
 		}
 	}
@@ -3975,6 +3996,43 @@ out_unlock:
 	return ret;
 }
 
+static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
+{
+	if (drop) {
+		if (iwl_mvm_has_new_tx_api(mvm))
+			/* TODO new tx api */
+			WARN_ONCE(1,
+				  "Need to implement flush TX queue\n");
+		else
+			iwl_mvm_flush_tx_path(mvm,
+				iwl_mvm_flushable_queues(mvm) & queues,
+				0);
+	} else {
+		if (iwl_mvm_has_new_tx_api(mvm)) {
+			struct ieee80211_sta *sta;
+			int i;
+
+			mutex_lock(&mvm->mutex);
+
+			for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
+				sta = rcu_dereference_protected(
+						mvm->fw_id_to_mac_id[i],
+						lockdep_is_held(&mvm->mutex));
+				if (IS_ERR_OR_NULL(sta))
+					continue;
+
+				iwl_mvm_wait_sta_queues_empty(mvm,
+						iwl_mvm_sta_from_mac80211(sta));
+			}
+
+			mutex_unlock(&mvm->mutex);
+		} else {
+			iwl_trans_wait_tx_queues_empty(mvm->trans,
+						       queues);
+		}
+	}
+}
+
 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
 			      struct ieee80211_vif *vif, u32 queues, bool drop)
 {
@@ -3985,7 +4043,12 @@ static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
 	int i;
 	u32 msk = 0;
 
-	if (!vif || vif->type != NL80211_IFTYPE_STATION)
+	if (!vif) {
+		iwl_mvm_flush_no_vif(mvm, queues, drop);
+		return;
+	}
+
+	if (vif->type != NL80211_IFTYPE_STATION)
 		return;
 
 	/* Make sure we're done with the deferred traffic before flushing */
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
index 83303bac0e4b..949e63418299 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
@@ -1015,6 +1015,9 @@ struct iwl_mvm {
 	bool drop_bcn_ap_mode;
 
 	struct delayed_work cs_tx_unblock_dwork;
+
+	/* does a monitor vif exist (only one can exist hence bool) */
+	bool monitor_on;
 #ifdef CONFIG_ACPI
 	struct iwl_mvm_sar_profile sar_profiles[IWL_MVM_SAR_PROFILE_NUM];
 	struct iwl_mvm_geo_profile geo_profiles[IWL_NUM_GEO_PROFILES];
@@ -1159,7 +1162,7 @@ static inline bool iwl_mvm_is_lar_supported(struct iwl_mvm *mvm)
 	 * Enable LAR only if it is supported by the FW (TLV) &&
 	 * enabled in the NVM
 	 */
-	if (mvm->cfg->ext_nvm)
+	if (mvm->cfg->nvm_type == IWL_NVM_EXT)
 		return nvm_lar && tlv_lar;
 	else
 		return tlv_lar;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
index 422aa6be9932..fb25b6f29323 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/nvm.c
@@ -295,18 +295,24 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 	const __be16 *hw;
 	const __le16 *sw, *calib, *regulatory, *mac_override, *phy_sku;
 	bool lar_enabled;
+	int regulatory_type;
 
 	/* Checking for required sections */
-	if (!mvm->trans->cfg->ext_nvm) {
+	if (mvm->trans->cfg->nvm_type != IWL_NVM_EXT) {
 		if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
 		    !mvm->nvm_sections[mvm->cfg->nvm_hw_section_num].data) {
 			IWL_ERR(mvm, "Can't parse empty OTP/NVM sections\n");
 			return NULL;
 		}
 	} else {
+		if (mvm->trans->cfg->nvm_type == IWL_NVM_SDP)
+			regulatory_type = NVM_SECTION_TYPE_REGULATORY_SDP;
+		else
+			regulatory_type = NVM_SECTION_TYPE_REGULATORY;
+
 		/* SW and REGULATORY sections are mandatory */
 		if (!mvm->nvm_sections[NVM_SECTION_TYPE_SW].data ||
-		    !mvm->nvm_sections[NVM_SECTION_TYPE_REGULATORY].data) {
+		    !mvm->nvm_sections[regulatory_type].data) {
 			IWL_ERR(mvm,
 				"Can't parse empty family 8000 OTP/NVM sections\n");
 			return NULL;
@@ -330,11 +336,14 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 	hw = (const __be16 *)sections[mvm->cfg->nvm_hw_section_num].data;
 	sw = (const __le16 *)sections[NVM_SECTION_TYPE_SW].data;
 	calib = (const __le16 *)sections[NVM_SECTION_TYPE_CALIBRATION].data;
-	regulatory = (const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data;
 	mac_override =
 		(const __le16 *)sections[NVM_SECTION_TYPE_MAC_OVERRIDE].data;
 	phy_sku = (const __le16 *)sections[NVM_SECTION_TYPE_PHY_SKU].data;
 
+	regulatory = mvm->trans->cfg->nvm_type == IWL_NVM_SDP ?
+		(const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY_SDP].data :
+		(const __le16 *)sections[NVM_SECTION_TYPE_REGULATORY].data;
+
 	lar_enabled = !iwlwifi_mod_params.lar_disable &&
 		      fw_has_capa(&mvm->fw->ucode_capa,
 				  IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
@@ -394,7 +403,7 @@ int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from external NVM\n");
 
 	/* Maximal size depends on NVM version */
-	if (!mvm->trans->cfg->ext_nvm)
+	if (mvm->trans->cfg->nvm_type != IWL_NVM_EXT)
 		max_section_size = IWL_MAX_NVM_SECTION_SIZE;
 	else
 		max_section_size = IWL_MAX_EXT_NVM_SECTION_SIZE;
@@ -465,7 +474,7 @@ int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 			break;
 		}
 
-		if (!mvm->trans->cfg->ext_nvm) {
+		if (mvm->trans->cfg->nvm_type != IWL_NVM_EXT) {
 			section_size =
 				2 * NVM_WORD1_LEN(le16_to_cpu(file_sec->word1));
 			section_id = NVM_WORD2_ID(le16_to_cpu(file_sec->word2));
@@ -740,7 +749,7 @@ int iwl_mvm_init_mcc(struct iwl_mvm *mvm)
 	struct ieee80211_regdomain *regd;
 	char mcc[3];
 
-	if (mvm->cfg->ext_nvm) {
+	if (mvm->cfg->nvm_type == IWL_NVM_EXT) {
 		tlv_lar = fw_has_capa(&mvm->fw->ucode_capa,
 				      IWL_UCODE_TLV_CAPA_LAR_SUPPORT);
 		nvm_lar = mvm->nvm_data->lar_enabled;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 231878969332..0f45f34e39d3 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1118,7 +1118,7 @@ void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
 static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
 {
 	struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
-	bool calibrating = ACCESS_ONCE(mvm->calibrating);
+	bool calibrating = READ_ONCE(mvm->calibrating);
 
 	if (state)
 		set_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
index ba7bd049d3d4..0fe723ca844e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rs.c
@@ -661,7 +661,8 @@ static void rs_tl_turn_on_agg(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
 	    (lq_sta->tx_agg_tid_en & BIT(tid)) &&
 	    (tid_data->tx_count_last >= IWL_MVM_RS_AGG_START_THRESHOLD)) {
 		IWL_DEBUG_RATE(mvm, "try to aggregate tid %d\n", tid);
-		rs_tl_turn_on_agg_for_tid(mvm, lq_sta, tid, sta);
+		if (rs_tl_turn_on_agg_for_tid(mvm, lq_sta, tid, sta) == 0)
+			tid_data->state = IWL_AGG_QUEUED;
 	}
 }
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
index 184c749766f2..2d14a58cbdd7 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rx.c
@@ -244,7 +244,9 @@ static u32 iwl_mvm_set_mac80211_rx_flag(struct iwl_mvm *mvm,
 		return 0;
 
 	default:
-		IWL_ERR(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status);
+		/* Expected in monitor (not having the keys) */
+		if (!mvm->monitor_on)
+			IWL_ERR(mvm, "Unhandled alg: 0x%x\n", rx_pkt_status);
 	}
 
 	return 0;
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
index 67ffd9774712..248699c2c4bf 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
@@ -277,7 +277,9 @@ static int iwl_mvm_rx_crypto(struct iwl_mvm *mvm, struct ieee80211_hdr *hdr,
 		stats->flag |= RX_FLAG_DECRYPTED;
 		return 0;
 	default:
-		IWL_ERR(mvm, "Unhandled alg: 0x%x\n", status);
+		/* Expected in monitor (not having the keys) */
+		if (!mvm->monitor_on)
+			IWL_ERR(mvm, "Unhandled alg: 0x%x\n", status);
 	}
 
 	return 0;
@@ -672,11 +674,12 @@ static bool iwl_mvm_reorder(struct iwl_mvm *mvm,
 	 * If there was a significant jump in the nssn - adjust.
 	 * If the SN is smaller than the NSSN it might need to first go into
 	 * the reorder buffer, in which case we just release up to it and the
-	 * rest of the function will take of storing it and releasing up to the
-	 * nssn
+	 * rest of the function will take care of storing it and releasing up to
+	 * the nssn
 	 */
 	if (!iwl_mvm_is_sn_less(nssn, buffer->head_sn + buffer->buf_size,
-				buffer->buf_size)) {
+				buffer->buf_size) ||
+	    !ieee80211_sn_less(sn, buffer->head_sn + buffer->buf_size)) {
 		u16 min_sn = ieee80211_sn_less(sn, nssn) ? sn : nssn;
 
 		iwl_mvm_release_frames(mvm, sta, napi, buffer, min_sn);
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
index 50983615dce6..774122fed454 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/scan.c
@@ -555,7 +555,7 @@ static int iwl_mvm_lmac_scan_abort(struct iwl_mvm *mvm)
 	struct iwl_host_cmd cmd = {
 		.id = SCAN_OFFLOAD_ABORT_CMD,
 	};
-	u32 status;
+	u32 status = CAN_ABORT_STATUS;
 
 	ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status);
 	if (ret)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
index 411a2055dc45..c4a343534c5e 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.c
@@ -1285,7 +1285,7 @@ static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm,
 {
 	struct iwl_mvm_add_sta_cmd cmd;
 	int ret;
-	u32 status;
+	u32 status = ADD_STA_SUCCESS;
 
 	lockdep_assert_held(&mvm->mutex);
 
@@ -2385,8 +2385,10 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (WARN_ON_ONCE(tid >= IWL_MAX_TID_COUNT))
 		return -EINVAL;
 
-	if (mvmsta->tid_data[tid].state != IWL_AGG_OFF) {
-		IWL_ERR(mvm, "Start AGG when state is not IWL_AGG_OFF %d!\n",
+	if (mvmsta->tid_data[tid].state != IWL_AGG_QUEUED &&
+	    mvmsta->tid_data[tid].state != IWL_AGG_OFF) {
+		IWL_ERR(mvm,
+			"Start AGG when state is not IWL_AGG_QUEUED or IWL_AGG_OFF %d!\n",
 			mvmsta->tid_data[tid].state);
 		return -ENXIO;
 	}
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
index d13893806513..aedabe101cf0 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/sta.h
@@ -281,6 +281,7 @@ struct iwl_mvm_vif;
  * These states relate to a specific RA / TID.
  *
  * @IWL_AGG_OFF: aggregation is not used
+ * @IWL_AGG_QUEUED: aggregation start work has been queued
  * @IWL_AGG_STARTING: aggregation are starting (between start and oper)
  * @IWL_AGG_ON: aggregation session is up
  * @IWL_EMPTYING_HW_QUEUE_ADDBA: establishing a BA session - waiting for the
@@ -290,6 +291,7 @@ struct iwl_mvm_vif;
  */
 enum iwl_mvm_agg_state {
 	IWL_AGG_OFF = 0,
+	IWL_AGG_QUEUED,
 	IWL_AGG_STARTING,
 	IWL_AGG_ON,
 	IWL_EMPTYING_HW_QUEUE_ADDBA,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
index 8876c2abc440..1232f63278eb 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tt.c
@@ -529,6 +529,7 @@ int iwl_mvm_ctdp_command(struct iwl_mvm *mvm, u32 op, u32 state)
 
 	lockdep_assert_held(&mvm->mutex);
 
+	status = 0;
 	ret = iwl_mvm_send_cmd_pdu_status(mvm, WIDE_ID(PHY_OPS_GROUP,
 						       CTDP_CONFIG_CMD),
 					  sizeof(cmd), &cmd, &status);
@@ -630,7 +631,7 @@ static int iwl_mvm_tzone_get_temp(struct thermal_zone_device *device,
 
 	if (!iwl_mvm_firmware_running(mvm) ||
 	    mvm->fwrt.cur_fw_img != IWL_UCODE_REGULAR) {
-		ret = -EIO;
+		ret = -ENODATA;
 		goto out;
 	}
 
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
index 172b5e63d3fb..6e9d3289b9d0 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c
@@ -564,8 +564,8 @@ static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm,
 	case NL80211_IFTYPE_AP:
 	case NL80211_IFTYPE_ADHOC:
 		/*
-		 * Handle legacy hostapd as well, where station will be added
-		 * only just before sending the association response.
+		 * Non-bufferable frames use the broadcast station, thus they
+		 * use the probe queue.
 		 * Also take care of the case where we send a deauth to a
 		 * station that we don't have, or similarly an association
 		 * response (with non-success status) for a station we can't
@@ -573,9 +573,9 @@ static int iwl_mvm_get_ctrl_vif_queue(struct iwl_mvm *mvm,
 		 * Also, disassociate frames might happen, particular with
 		 * reason 7 ("Class 3 frame received from nonassociated STA").
 		 */
-		if (ieee80211_is_probe_resp(fc) || ieee80211_is_auth(fc) ||
-		    ieee80211_is_deauth(fc) || ieee80211_is_assoc_resp(fc) ||
-		    ieee80211_is_disassoc(fc))
+		if (ieee80211_is_mgmt(fc) &&
+		    (!ieee80211_is_bufferable_mmpdu(fc) ||
+		     ieee80211_is_deauth(fc) || ieee80211_is_disassoc(fc)))
 			return mvm->probe_queue;
 		if (info->hw_queue == info->control.vif->cab_queue)
 			return mvmvif->cab_queue;
@@ -652,7 +652,7 @@ int iwl_mvm_tx_skb_non_sta(struct iwl_mvm *mvm, struct sk_buff *skb)
 				return -1;
 		} else if (info.control.vif->type == NL80211_IFTYPE_STATION &&
 			   is_multicast_ether_addr(hdr->addr1)) {
-			u8 ap_sta_id = ACCESS_ONCE(mvmvif->ap_sta_id);
+			u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id);
 
 			if (ap_sta_id != IWL_MVM_INVALID_STA)
 				sta_id = ap_sta_id;
@@ -700,7 +700,7 @@ static int iwl_mvm_tx_tso(struct iwl_mvm *mvm, struct sk_buff *skb,
 	snap_ip_tcp = 8 + skb_transport_header(skb) - skb_network_header(skb) +
 		tcp_hdrlen(skb);
 
-	dbg_max_amsdu_len = ACCESS_ONCE(mvm->max_amsdu_len);
+	dbg_max_amsdu_len = READ_ONCE(mvm->max_amsdu_len);
 
 	if (!sta->max_amsdu_len ||
 	    !ieee80211_is_data_qos(hdr->frame_control) ||
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
index a06b6612b658..f25ce3a1ea50 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/rx.c
@@ -1247,7 +1247,7 @@ restart:
 	spin_lock(&rxq->lock);
 	/* uCode's read index (stored in shared DRAM) indicates the last Rx
 	 * buffer that the driver may process (last buffer filled by ucode). */
-	r = le16_to_cpu(ACCESS_ONCE(rxq->rb_stts->closed_rb_num)) & 0x0FFF;
+	r = le16_to_cpu(READ_ONCE(rxq->rb_stts->closed_rb_num)) & 0x0FFF;
 	i = rxq->read;
 
 	/* W/A 9000 device step A0 wrap-around bug */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 2e3e013ec95a..9ad3f4fe5894 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2076,12 +2076,12 @@ static int iwl_trans_pcie_wait_txq_empty(struct iwl_trans *trans, int txq_idx)
 
 	IWL_DEBUG_TX_QUEUES(trans, "Emptying queue %d...\n", txq_idx);
 	txq = trans_pcie->txq[txq_idx];
-	wr_ptr = ACCESS_ONCE(txq->write_ptr);
+	wr_ptr = READ_ONCE(txq->write_ptr);
 
-	while (txq->read_ptr != ACCESS_ONCE(txq->write_ptr) &&
+	while (txq->read_ptr != READ_ONCE(txq->write_ptr) &&
 	       !time_after(jiffies,
 			   now + msecs_to_jiffies(IWL_FLUSH_WAIT_MS))) {
-		u8 write_ptr = ACCESS_ONCE(txq->write_ptr);
+		u8 write_ptr = READ_ONCE(txq->write_ptr);
 
 		if (WARN_ONCE(wr_ptr != write_ptr,
 			      "WR pointer moved while flushing %d -> %d\n",
@@ -2553,7 +2553,7 @@ static u32 iwl_trans_pcie_dump_rbs(struct iwl_trans *trans,
 
 	spin_lock(&rxq->lock);
 
-	r = le16_to_cpu(ACCESS_ONCE(rxq->rb_stts->closed_rb_num)) & 0x0FFF;
+	r = le16_to_cpu(READ_ONCE(rxq->rb_stts->closed_rb_num)) & 0x0FFF;
 
 	for (i = rxq->read, j = 0;
 	     i != r && j < allocated_rb_nums;
@@ -2814,7 +2814,7 @@ static struct iwl_trans_dump_data
 		/* Dump RBs is supported only for pre-9000 devices (1 queue) */
 		struct iwl_rxq *rxq = &trans_pcie->rxq[0];
 		/* RBs */
-		num_rbs = le16_to_cpu(ACCESS_ONCE(rxq->rb_stts->closed_rb_num))
+		num_rbs = le16_to_cpu(READ_ONCE(rxq->rb_stts->closed_rb_num))
 				      & 0x0FFF;
 		num_rbs = (num_rbs - rxq->read) & RX_QUEUE_MASK;
 		len += num_rbs * (sizeof(*data) +
diff --git a/drivers/net/wireless/intersil/hostap/Makefile b/drivers/net/wireless/intersil/hostap/Makefile
index b8e41a702c00..ae3bb73b2d99 100644
--- a/drivers/net/wireless/intersil/hostap/Makefile
+++ b/drivers/net/wireless/intersil/hostap/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 hostap-y := hostap_80211_rx.o hostap_80211_tx.o hostap_ap.o hostap_info.o \
             hostap_ioctl.o hostap_main.o hostap_proc.o 
 obj-$(CONFIG_HOSTAP) += hostap.o
diff --git a/drivers/net/wireless/intersil/hostap/hostap.h b/drivers/net/wireless/intersil/hostap/hostap.h
index ce8721fbc10e..8130d29c7989 100644
--- a/drivers/net/wireless/intersil/hostap/hostap.h
+++ b/drivers/net/wireless/intersil/hostap/hostap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOSTAP_H
 #define HOSTAP_H
 
diff --git a/drivers/net/wireless/intersil/hostap/hostap_80211.h b/drivers/net/wireless/intersil/hostap/hostap_80211.h
index ed98ce7c8f65..1452cf6ecb07 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_80211.h
+++ b/drivers/net/wireless/intersil/hostap/hostap_80211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOSTAP_80211_H
 #define HOSTAP_80211_H
 
diff --git a/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c b/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c
index 6d8b64ca1a63..61be822f90b5 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_80211_rx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/etherdevice.h>
 #include <linux/slab.h>
 #include <linux/export.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_80211_tx.c b/drivers/net/wireless/intersil/hostap/hostap_80211_tx.c
index c1b10d5117ad..c47da06945c2 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_80211_tx.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_80211_tx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/export.h>
 #include <linux/etherdevice.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ap.c b/drivers/net/wireless/intersil/hostap/hostap_ap.c
index eb9cd6fa9c4d..1a8d8db80b05 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ap.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Intersil Prism2 driver with Host AP (software access point) support
  * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ap.h b/drivers/net/wireless/intersil/hostap/hostap_ap.h
index 334e2d0b8e11..b7ac9e2f1a39 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ap.h
+++ b/drivers/net/wireless/intersil/hostap/hostap_ap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOSTAP_AP_H
 #define HOSTAP_AP_H
 
diff --git a/drivers/net/wireless/intersil/hostap/hostap_common.h b/drivers/net/wireless/intersil/hostap/hostap_common.h
index 4230102ac9e4..22543538239b 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_common.h
+++ b/drivers/net/wireless/intersil/hostap/hostap_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOSTAP_COMMON_H
 #define HOSTAP_COMMON_H
 
diff --git a/drivers/net/wireless/intersil/hostap/hostap_config.h b/drivers/net/wireless/intersil/hostap/hostap_config.h
index 2c8f71f0ed45..3ebd55847fad 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_config.h
+++ b/drivers/net/wireless/intersil/hostap/hostap_config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOSTAP_CONFIG_H
 #define HOSTAP_CONFIG_H
 
diff --git a/drivers/net/wireless/intersil/hostap/hostap_download.c b/drivers/net/wireless/intersil/hostap/hostap_download.c
index 705fe668b969..4507614a7c5a 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_download.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_download.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 static int prism2_enable_aux_port(struct net_device *dev, int enable)
 {
 	u16 val, reg;
diff --git a/drivers/net/wireless/intersil/hostap/hostap_info.c b/drivers/net/wireless/intersil/hostap/hostap_info.c
index 7635ac4f6679..de8a099a9386 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_info.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_info.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Host AP driver Info Frame processing (part of hostap.o module) */
 
 #include <linux/if_arp.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
index ff153ce29539..c1bc0a6ef300 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ioctl() (mostly Linux Wireless Extensions) routines for Host AP driver */
 
 #include <linux/slab.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_proc.c b/drivers/net/wireless/intersil/hostap/hostap_proc.c
index dd84557cf957..d234231bf532 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_proc.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* /proc routines for Host AP driver */
 
 #include <linux/types.h>
diff --git a/drivers/net/wireless/intersil/hostap/hostap_wlan.h b/drivers/net/wireless/intersil/hostap/hostap_wlan.h
index 5352adb94d50..a8c4c1a8b29d 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_wlan.h
+++ b/drivers/net/wireless/intersil/hostap/hostap_wlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOSTAP_WLAN_H
 #define HOSTAP_WLAN_H
 
diff --git a/drivers/net/wireless/intersil/orinoco/Makefile b/drivers/net/wireless/intersil/orinoco/Makefile
index b7ecef820f76..0c29c56c88d6 100644
--- a/drivers/net/wireless/intersil/orinoco/Makefile
+++ b/drivers/net/wireless/intersil/orinoco/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the orinoco wireless device drivers.
 #
diff --git a/drivers/net/wireless/intersil/p54/Makefile b/drivers/net/wireless/intersil/p54/Makefile
index b542e68f1781..d71651ff904e 100644
--- a/drivers/net/wireless/intersil/p54/Makefile
+++ b/drivers/net/wireless/intersil/p54/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 p54common-objs			:= eeprom.o fwio.o txrx.o main.o
 p54common-$(CONFIG_P54_LEDS)	+= led.o
 
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 6467ffac9811..d2b3d6177a55 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -1380,7 +1380,7 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw,
 	mac80211_hwsim_monitor_rx(hw, skb, channel);
 
 	/* wmediumd mode check */
-	_portid = ACCESS_ONCE(data->wmediumd);
+	_portid = READ_ONCE(data->wmediumd);
 
 	if (_portid)
 		return mac80211_hwsim_tx_frame_nl(hw, skb, _portid);
@@ -1477,7 +1477,7 @@ static void mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
 				    struct ieee80211_channel *chan)
 {
 	struct mac80211_hwsim_data *data = hw->priv;
-	u32 _pid = ACCESS_ONCE(data->wmediumd);
+	u32 _pid = READ_ONCE(data->wmediumd);
 
 	if (ieee80211_hw_check(hw, SUPPORTS_RC_TABLE)) {
 		struct ieee80211_tx_info *txi = IEEE80211_SKB_CB(skb);
diff --git a/drivers/net/wireless/marvell/libertas/Makefile b/drivers/net/wireless/marvell/libertas/Makefile
index eac72f7bd341..41b9b440a542 100644
--- a/drivers/net/wireless/marvell/libertas/Makefile
+++ b/drivers/net/wireless/marvell/libertas/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 libertas-y += cfg.o
 libertas-y += cmd.o
 libertas-y += cmdresp.o
diff --git a/drivers/net/wireless/marvell/libertas/cfg.c b/drivers/net/wireless/marvell/libertas/cfg.c
index 71ba2c8d09b5..9f3a7b512673 100644
--- a/drivers/net/wireless/marvell/libertas/cfg.c
+++ b/drivers/net/wireless/marvell/libertas/cfg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement cfg80211 ("iw") support.
  *
diff --git a/drivers/net/wireless/marvell/libertas/cfg.h b/drivers/net/wireless/marvell/libertas/cfg.h
index acccc2922401..0e48dc6d81d1 100644
--- a/drivers/net/wireless/marvell/libertas/cfg.h
+++ b/drivers/net/wireless/marvell/libertas/cfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LBS_CFG80211_H__
 #define __LBS_CFG80211_H__
 
diff --git a/drivers/net/wireless/marvell/libertas/cmd.h b/drivers/net/wireless/marvell/libertas/cmd.h
index 0c5444b02c64..80878561cb90 100644
--- a/drivers/net/wireless/marvell/libertas/cmd.h
+++ b/drivers/net/wireless/marvell/libertas/cmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright (C) 2007, Red Hat, Inc. */
 
 #ifndef _LBS_CMD_H_
diff --git a/drivers/net/wireless/marvell/libertas/cmdresp.c b/drivers/net/wireless/marvell/libertas/cmdresp.c
index aaf01619de59..b73d08381398 100644
--- a/drivers/net/wireless/marvell/libertas/cmdresp.c
+++ b/drivers/net/wireless/marvell/libertas/cmdresp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains the handling of command
  * responses as well as events generated by firmware.
diff --git a/drivers/net/wireless/marvell/libertas/debugfs.c b/drivers/net/wireless/marvell/libertas/debugfs.c
index faed1823c58e..c83f44f9ddf1 100644
--- a/drivers/net/wireless/marvell/libertas/debugfs.c
+++ b/drivers/net/wireless/marvell/libertas/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/dcache.h>
 #include <linux/debugfs.h>
 #include <linux/delay.h>
diff --git a/drivers/net/wireless/marvell/libertas/debugfs.h b/drivers/net/wireless/marvell/libertas/debugfs.h
index f2b9c7ffe0fd..6efd1a66dad7 100644
--- a/drivers/net/wireless/marvell/libertas/debugfs.h
+++ b/drivers/net/wireless/marvell/libertas/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LBS_DEBUGFS_H_
 #define _LBS_DEBUGFS_H_
 
diff --git a/drivers/net/wireless/marvell/libertas/decl.h b/drivers/net/wireless/marvell/libertas/decl.h
index 84a3aa7ac570..5d1e30e0c5db 100644
--- a/drivers/net/wireless/marvell/libertas/decl.h
+++ b/drivers/net/wireless/marvell/libertas/decl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  *  This file contains declaration referring to
diff --git a/drivers/net/wireless/marvell/libertas/defs.h b/drivers/net/wireless/marvell/libertas/defs.h
index d3221444e51c..58e2ead7b0cc 100644
--- a/drivers/net/wireless/marvell/libertas/defs.h
+++ b/drivers/net/wireless/marvell/libertas/defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header file contains global constant/enum definitions,
  * global variable declaration.
diff --git a/drivers/net/wireless/marvell/libertas/dev.h b/drivers/net/wireless/marvell/libertas/dev.h
index edf710bc5e77..dd1ee1f0af48 100644
--- a/drivers/net/wireless/marvell/libertas/dev.h
+++ b/drivers/net/wireless/marvell/libertas/dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file contains definitions and data structures specific
  * to Marvell 802.11 NIC. It contains the Device Information
diff --git a/drivers/net/wireless/marvell/libertas/ethtool.c b/drivers/net/wireless/marvell/libertas/ethtool.c
index 693868f16921..1bb8746a0b23 100644
--- a/drivers/net/wireless/marvell/libertas/ethtool.c
+++ b/drivers/net/wireless/marvell/libertas/ethtool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/hardirq.h>
 #include <linux/netdevice.h>
 #include <linux/ethtool.h>
diff --git a/drivers/net/wireless/marvell/libertas/host.h b/drivers/net/wireless/marvell/libertas/host.h
index 96726f79a1dd..a4fc3f79bb17 100644
--- a/drivers/net/wireless/marvell/libertas/host.h
+++ b/drivers/net/wireless/marvell/libertas/host.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file function prototypes, data structure
  * and  definitions for all the host/station commands
diff --git a/drivers/net/wireless/marvell/libertas/if_usb.h b/drivers/net/wireless/marvell/libertas/if_usb.h
index 6e42eac331de..8dc14bec3e16 100644
--- a/drivers/net/wireless/marvell/libertas/if_usb.h
+++ b/drivers/net/wireless/marvell/libertas/if_usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LBS_IF_USB_H
 #define _LBS_IF_USB_H
 
diff --git a/drivers/net/wireless/marvell/libertas/mesh.c b/drivers/net/wireless/marvell/libertas/mesh.c
index 37ace5cb309d..b0cb16ef8d1d 100644
--- a/drivers/net/wireless/marvell/libertas/mesh.c
+++ b/drivers/net/wireless/marvell/libertas/mesh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/delay.h>
diff --git a/drivers/net/wireless/marvell/libertas/mesh.h b/drivers/net/wireless/marvell/libertas/mesh.h
index 6603f341c874..dfe22c91aade 100644
--- a/drivers/net/wireless/marvell/libertas/mesh.h
+++ b/drivers/net/wireless/marvell/libertas/mesh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Contains all definitions needed for the Libertas' MESH implementation.
  */
diff --git a/drivers/net/wireless/marvell/libertas/radiotap.h b/drivers/net/wireless/marvell/libertas/radiotap.h
index b3c8ea6d610e..1ed5608d353f 100644
--- a/drivers/net/wireless/marvell/libertas/radiotap.h
+++ b/drivers/net/wireless/marvell/libertas/radiotap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <net/ieee80211_radiotap.h>
 
 struct tx_radiotap_hdr {
diff --git a/drivers/net/wireless/marvell/libertas/types.h b/drivers/net/wireless/marvell/libertas/types.h
index cf1d9b047ee6..cd4ceb6f885d 100644
--- a/drivers/net/wireless/marvell/libertas/types.h
+++ b/drivers/net/wireless/marvell/libertas/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header file contains definition for global types
  */
diff --git a/drivers/net/wireless/marvell/libertas_tf/deb_defs.h b/drivers/net/wireless/marvell/libertas_tf/deb_defs.h
index 4bd3dc5adf7c..37a98e228b46 100644
--- a/drivers/net/wireless/marvell/libertas_tf/deb_defs.h
+++ b/drivers/net/wireless/marvell/libertas_tf/deb_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
   * This header file contains global constant/enum definitions,
   * global variable declaration.
diff --git a/drivers/net/wireless/quantenna/qtnfmac/Makefile b/drivers/net/wireless/quantenna/qtnfmac/Makefile
index f236b7dc2be3..97f760a3d599 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/Makefile
+++ b/drivers/net/wireless/quantenna/qtnfmac/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (c) 2015-2016 Quantenna Communications, Inc.
 # All rights reserved.
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
index 856fa6e8327e..a450bc6bc774 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
@@ -115,6 +115,8 @@ int qtnf_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
 
 	vif = qtnf_netdev_get_priv(wdev->netdev);
 
+	qtnf_scan_done(vif->mac, true);
+
 	if (qtnf_cmd_send_del_intf(vif))
 		pr_err("VIF%u.%u: failed to delete VIF\n", vif->mac->macid,
 		       vif->vifid);
@@ -335,6 +337,8 @@ static int qtnf_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
 	int ret;
 
+	qtnf_scan_done(vif->mac, true);
+
 	ret = qtnf_cmd_send_stop_ap(vif);
 	if (ret) {
 		pr_err("VIF%u.%u: failed to stop AP operation in FW\n",
@@ -570,8 +574,6 @@ qtnf_del_station(struct wiphy *wiphy, struct net_device *dev,
 	    !qtnf_sta_list_lookup(&vif->sta_list, params->mac))
 		return 0;
 
-	qtnf_scan_done(vif->mac, true);
-
 	ret = qtnf_cmd_send_del_sta(vif, params);
 	if (ret)
 		pr_err("VIF%u.%u: failed to delete STA %pM\n",
@@ -1134,8 +1136,9 @@ void qtnf_virtual_intf_cleanup(struct net_device *ndev)
 		}
 
 		vif->sta_state = QTNF_STA_DISCONNECTED;
-		qtnf_scan_done(mac, true);
 	}
+
+	qtnf_scan_done(mac, true);
 }
 
 void qtnf_cfg80211_vif_reset(struct qtnf_vif *vif)
diff --git a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
index 6a4af52522b8..66db26613b1f 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/cfg80211.h
@@ -34,6 +34,9 @@ static inline void qtnf_scan_done(struct qtnf_wmac *mac, bool aborted)
 		.aborted = aborted,
 	};
 
+	if (timer_pending(&mac->scan_timeout))
+		del_timer_sync(&mac->scan_timeout);
+
 	mutex_lock(&mac->mac_lock);
 
 	if (mac->scan_req) {
diff --git a/drivers/net/wireless/quantenna/qtnfmac/event.c b/drivers/net/wireless/quantenna/qtnfmac/event.c
index 0fc2814eafad..43d2e7fd6e02 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/event.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/event.c
@@ -345,8 +345,6 @@ qtnf_event_handle_scan_complete(struct qtnf_wmac *mac,
 		return -EINVAL;
 	}
 
-	if (timer_pending(&mac->scan_timeout))
-		del_timer_sync(&mac->scan_timeout);
 	qtnf_scan_done(mac, le32_to_cpu(status->flags) & QLINK_SCAN_ABORTED);
 
 	return 0;
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
index 502e72b7cdcc..69131965a298 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie.c
@@ -661,14 +661,18 @@ static int qtnf_pcie_data_tx(struct qtnf_bus *bus, struct sk_buff *skb)
 	struct qtnf_pcie_bus_priv *priv = (void *)get_bus_priv(bus);
 	dma_addr_t txbd_paddr, skb_paddr;
 	struct qtnf_tx_bd *txbd;
+	unsigned long flags;
 	int len, i;
 	u32 info;
 	int ret = 0;
 
+	spin_lock_irqsave(&priv->tx0_lock, flags);
+
 	if (!qtnf_tx_queue_ready(priv)) {
 		if (skb->dev)
 			netif_stop_queue(skb->dev);
 
+		spin_unlock_irqrestore(&priv->tx0_lock, flags);
 		return NETDEV_TX_BUSY;
 	}
 
@@ -717,8 +721,10 @@ tx_done:
 		dev_kfree_skb_any(skb);
 	}
 
-	qtnf_pcie_data_tx_reclaim(priv);
 	priv->tx_done_count++;
+	spin_unlock_irqrestore(&priv->tx0_lock, flags);
+
+	qtnf_pcie_data_tx_reclaim(priv);
 
 	return NETDEV_TX_OK;
 }
@@ -1247,6 +1253,7 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	strcpy(bus->fwname, QTN_PCI_PEARL_FW_NAME);
 	init_completion(&bus->request_firmware_complete);
 	mutex_init(&bus->bus_lock);
+	spin_lock_init(&pcie_priv->tx0_lock);
 	spin_lock_init(&pcie_priv->irq_lock);
 	spin_lock_init(&pcie_priv->tx_reclaim_lock);
 
diff --git a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
index e76a23716ee0..86ac1ccedb52 100644
--- a/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
+++ b/drivers/net/wireless/quantenna/qtnfmac/pearl/pcie_bus_priv.h
@@ -34,6 +34,8 @@ struct qtnf_pcie_bus_priv {
 
 	/* lock for tx reclaim operations */
 	spinlock_t tx_reclaim_lock;
+	/* lock for tx0 operations */
+	spinlock_t tx0_lock;
 	u8 msi_enabled;
 	int mps;
 
diff --git a/drivers/net/wireless/ralink/rt2x00/Makefile b/drivers/net/wireless/ralink/rt2x00/Makefile
index 24a66015a495..de030ebcdf6e 100644
--- a/drivers/net/wireless/ralink/rt2x00/Makefile
+++ b/drivers/net/wireless/ralink/rt2x00/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rt2x00lib-y				+= rt2x00dev.o
 rt2x00lib-y				+= rt2x00mac.o
 rt2x00lib-y				+= rt2x00config.o
diff --git a/drivers/net/wireless/ray_cs.h b/drivers/net/wireless/ray_cs.h
index 524c2f02dd82..0609d8625019 100644
--- a/drivers/net/wireless/ray_cs.h
+++ b/drivers/net/wireless/ray_cs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Raytheon wireless LAN PCMCIA card driver for Linux 
    A  PCMCIA client driver for the Raylink wireless network card
    Written by Corey Thomas
diff --git a/drivers/net/wireless/rayctl.h b/drivers/net/wireless/rayctl.h
index b21ed64e15df..668444f6bf07 100644
--- a/drivers/net/wireless/rayctl.h
+++ b/drivers/net/wireless/rayctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RAYCTL_H_
 #define _RAYCTL_H_
 
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8180.h b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8180.h
index e8243a44d6b6..7948a2da195a 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8180.h
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8180.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef RTL8180_H
 #define RTL8180_H
 
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225.h b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225.h
index 310013a2d726..de7727b74631 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225.h
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8180/rtl8225.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef RTL8180_RTL8225_H
 #define RTL8180_RTL8225_H
 
diff --git a/drivers/net/wireless/realtek/rtl818x/rtl8187/rfkill.h b/drivers/net/wireless/realtek/rtl818x/rtl8187/rfkill.h
index e12575e96d11..c493e59eede9 100644
--- a/drivers/net/wireless/realtek/rtl818x/rtl8187/rfkill.h
+++ b/drivers/net/wireless/realtek/rtl818x/rtl8187/rfkill.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef RTL8187_RFKILL_H
 #define RTL8187_RFKILL_H
 
diff --git a/drivers/net/wireless/realtek/rtlwifi/Makefile b/drivers/net/wireless/realtek/rtlwifi/Makefile
index 84c2e826fa1d..09c30e428375 100644
--- a/drivers/net/wireless/realtek/rtlwifi/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RTLWIFI) 		+= rtlwifi.o
 rtlwifi-objs	:=		\
 		base.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/btcoexist/Makefile b/drivers/net/wireless/realtek/rtlwifi/btcoexist/Makefile
index 20582df0465c..d15c58737388 100644
--- a/drivers/net/wireless/realtek/rtlwifi/btcoexist/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/btcoexist/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 btcoexist-objs :=	halbtc8192e2ant.o	\
 			halbtc8723b1ant.o	\
 			halbtc8723b2ant.o	\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/Makefile
index dae4f0f19cd3..5ea368e8e64b 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8188ee/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8188ee-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/Makefile
index 0546b7556259..40f075527fc8 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192c/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192c/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8192c-common-objs :=		\
 		main.o		\
 		dm_common.o	\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/Makefile
index 577c7adbc322..bc307ccc5e83 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8192ce-objs :=		\
 		dm.o		\
 		hw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/Makefile
index 97437dadc287..8b3921fd2cb6 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8192cu-objs :=		\
 		dm.o		\
 		hw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/Makefile
index d0703f20d30c..6482d823a57a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8192de-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/Makefile
index f254b9f64326..12dfbeb1f3ca 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ee/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8192ee-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/Makefile
index dfa9dbbe2cdf..e577235f5286 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192se/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192se/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8192se-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/Makefile
index e7607d2cb2ef..d1238707291f 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723ae/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8723ae-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/Makefile
index a841cbd55d8e..d3ed44d80011 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8723be-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723com/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8723com/Makefile
index 73da75526e2a..3451198b670c 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8723com/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723com/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8723-common-objs :=		\
 		main.o		\
 		dm_common.o	\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/Makefile b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/Makefile
index 8ca406b95f02..81dbf4ca6bc6 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/Makefile
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtl8821ae-objs :=		\
 		dm.o		\
 		fw.o		\
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
index 4f73012978e9..1d431d4bf6d2 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
@@ -1122,7 +1122,7 @@ static u8 _rtl8821ae_dbi_read(struct rtl_priv *rtlpriv, u16 addr)
 	}
 	if (0 == tmp) {
 		read_addr = REG_DBI_RDATA + addr % 4;
-		ret = rtl_read_byte(rtlpriv, read_addr);
+		ret = rtl_read_word(rtlpriv, read_addr);
 	}
 	return ret;
 }
diff --git a/drivers/net/wireless/rsi/Makefile b/drivers/net/wireless/rsi/Makefile
index ebb89965997a..47c45908d894 100644
--- a/drivers/net/wireless/rsi/Makefile
+++ b/drivers/net/wireless/rsi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rsi_91x-y			+= rsi_91x_main.o
 rsi_91x-y			+= rsi_91x_core.o
 rsi_91x-y			+= rsi_91x_mac80211.o
diff --git a/drivers/net/wireless/st/cw1200/Makefile b/drivers/net/wireless/st/cw1200/Makefile
index b086aac6547a..386a484e0707 100644
--- a/drivers/net/wireless/st/cw1200/Makefile
+++ b/drivers/net/wireless/st/cw1200/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 cw1200_core-y := \
 		fwio.o \
 		txrx.o \
diff --git a/drivers/net/wireless/ti/Makefile b/drivers/net/wireless/ti/Makefile
index af14231aeede..0530dd744275 100644
--- a/drivers/net/wireless/ti/Makefile
+++ b/drivers/net/wireless/ti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_WLCORE)			+= wlcore/
 obj-$(CONFIG_WL12XX)			+= wl12xx/
 obj-$(CONFIG_WL1251)			+= wl1251/
diff --git a/drivers/net/wireless/ti/wl1251/Makefile b/drivers/net/wireless/ti/wl1251/Makefile
index 58b4f935a3f6..38da9f8e5f82 100644
--- a/drivers/net/wireless/ti/wl1251/Makefile
+++ b/drivers/net/wireless/ti/wl1251/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 wl1251-objs		= main.o event.o tx.o rx.o ps.o cmd.o \
 			  acx.o boot.o init.o debugfs.o io.o
 wl1251_spi-objs		+= spi.o
diff --git a/drivers/net/wireless/ti/wl1251/acx.c b/drivers/net/wireless/ti/wl1251/acx.c
index d6fbdda2cba3..f78fc3880423 100644
--- a/drivers/net/wireless/ti/wl1251/acx.c
+++ b/drivers/net/wireless/ti/wl1251/acx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "acx.h"
 
 #include <linux/module.h>
diff --git a/drivers/net/wireless/ti/wl1251/cmd.c b/drivers/net/wireless/ti/wl1251/cmd.c
index ede31f048ef9..9547aea01b0f 100644
--- a/drivers/net/wireless/ti/wl1251/cmd.c
+++ b/drivers/net/wireless/ti/wl1251/cmd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "cmd.h"
 
 #include <linux/module.h>
diff --git a/drivers/net/wireless/ti/wl1251/wl12xx_80211.h b/drivers/net/wireless/ti/wl1251/wl12xx_80211.h
index 04ed51495772..7fabe702c4cc 100644
--- a/drivers/net/wireless/ti/wl1251/wl12xx_80211.h
+++ b/drivers/net/wireless/ti/wl1251/wl12xx_80211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WL12XX_80211_H__
 #define __WL12XX_80211_H__
 
diff --git a/drivers/net/wireless/ti/wlcore/Makefile b/drivers/net/wireless/ti/wlcore/Makefile
index e286713b3c18..7d418c57bcb5 100644
--- a/drivers/net/wireless/ti/wlcore/Makefile
+++ b/drivers/net/wireless/ti/wlcore/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 wlcore-objs		= main.o cmd.o io.o event.o tx.o rx.o ps.o acx.o \
 			  boot.o init.o debugfs.o scan.o sysfs.o vendor_cmd.o
 
diff --git a/drivers/net/wireless/ti/wlcore/wl12xx_80211.h b/drivers/net/wireless/ti/wlcore/wl12xx_80211.h
index 22b0bc98d7b5..181be725eff8 100644
--- a/drivers/net/wireless/ti/wlcore/wl12xx_80211.h
+++ b/drivers/net/wireless/ti/wlcore/wl12xx_80211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WL12XX_80211_H__
 #define __WL12XX_80211_H__
 
diff --git a/drivers/net/wireless/wl3501.h b/drivers/net/wireless/wl3501.h
index 3fbfd19818f1..efdce9ae36ea 100644
--- a/drivers/net/wireless/wl3501.h
+++ b/drivers/net/wireless/wl3501.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WL3501_H__
 #define __WL3501_H__
 
diff --git a/drivers/net/wireless/zydas/zd1211rw/Makefile b/drivers/net/wireless/zydas/zd1211rw/Makefile
index 5728a918e508..1647a449ce1a 100644
--- a/drivers/net/wireless/zydas/zd1211rw/Makefile
+++ b/drivers/net/wireless/zydas/zd1211rw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ZD1211RW) += zd1211rw.o
 
 zd1211rw-objs := zd_chip.o zd_mac.o \
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index ee8ed9da00ad..4491ca5aee90 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -486,7 +486,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 
 	dev->tx_queue_len = XENVIF_QUEUE_LENGTH;
 
-	dev->min_mtu = 0;
+	dev->min_mtu = ETH_MIN_MTU;
 	dev->max_mtu = ETH_MAX_MTU - VLAN_ETH_HLEN;
 
 	/*
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 523387e71a80..8b8689c6d887 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1316,7 +1316,7 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
 	netdev->features |= netdev->hw_features;
 
 	netdev->ethtool_ops = &xennet_ethtool_ops;
-	netdev->min_mtu = 0;
+	netdev->min_mtu = ETH_MIN_MTU;
 	netdev->max_mtu = XEN_NETIF_MAX_TX_SIZE;
 	SET_NETDEV_DEV(netdev, &dev->dev);
 
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index 640b7274371c..5393ba59b17d 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for nfc devices
 #
diff --git a/drivers/nfc/mei_phy.h b/drivers/nfc/mei_phy.h
index acd3a1fc69e6..51bd44f5f3b8 100644
--- a/drivers/nfc/mei_phy.h
+++ b/drivers/nfc/mei_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LOCAL_MEI_PHY_H_
 #define __LOCAL_MEI_PHY_H_
 
diff --git a/drivers/nfc/microread/Makefile b/drivers/nfc/microread/Makefile
index 755c24cba253..2f7dda265f8f 100644
--- a/drivers/nfc/microread/Makefile
+++ b/drivers/nfc/microread/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Microread HCI based NFC driver
 #
diff --git a/drivers/nfc/nfcmrvl/Makefile b/drivers/nfc/nfcmrvl/Makefile
index fa07c7806492..e74de0cb3bb0 100644
--- a/drivers/nfc/nfcmrvl/Makefile
+++ b/drivers/nfc/nfcmrvl/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for NFCMRVL NCI based NFC driver
 #
diff --git a/drivers/nfc/st-nci/Makefile b/drivers/nfc/st-nci/Makefile
index 439b2fa8654a..e0310743fed1 100644
--- a/drivers/nfc/st-nci/Makefile
+++ b/drivers/nfc/st-nci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ST_NCI NCI based NFC driver
 #
diff --git a/drivers/nubus/nubus.c b/drivers/nubus/nubus.c
index df431e8a0631..b793727cd4f7 100644
--- a/drivers/nubus/nubus.c
+++ b/drivers/nubus/nubus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Macintosh Nubus Interface Code
  *
@@ -18,11 +19,6 @@
 #include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/hwtest.h>
-#include <asm/mac_via.h>
-#include <asm/mac_oss.h>
-
-extern void via_nubus_init(void);
-extern void oss_nubus_init(void);
 
 /* Constants */
 
@@ -840,14 +836,6 @@ static int __init nubus_init(void)
 	if (!MACH_IS_MAC)
 		return 0;
 
-	/* Initialize the NuBus interrupts */
-	if (oss_present) {
-		oss_nubus_init();
-	} else {
-		via_nubus_init();
-	}
-
-	/* And probe */
 	pr_info("NuBus: Scanning NuBus slots.\n");
 	nubus_devices = NULL;
 	nubus_boards = NULL;
diff --git a/drivers/nubus/proc.c b/drivers/nubus/proc.c
index e8f68f5732f1..004a122ac0ff 100644
--- a/drivers/nubus/proc.c
+++ b/drivers/nubus/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* drivers/nubus/proc.c: Proc FS interface for NuBus.
 
    By David Huggins-Daines <dhd@debian.org>
diff --git a/drivers/nvdimm/Makefile b/drivers/nvdimm/Makefile
index 909554c3f955..447e0e14f3b6 100644
--- a/drivers/nvdimm/Makefile
+++ b/drivers/nvdimm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_LIBNVDIMM) += libnvdimm.o
 obj-$(CONFIG_BLK_DEV_PMEM) += nd_pmem.o
 obj-$(CONFIG_ND_BTT) += nd_btt.o
diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
index 1427a386a033..3e4d1e7998da 100644
--- a/drivers/nvdimm/namespace_devs.c
+++ b/drivers/nvdimm/namespace_devs.c
@@ -1417,6 +1417,15 @@ static int btt_claim_class(struct device *dev)
 		struct nvdimm_drvdata *ndd = to_ndd(nd_mapping);
 		struct nd_namespace_index *nsindex;
 
+		/*
+		 * If any of the DIMMs do not support labels the only
+		 * possible BTT format is v1.
+		 */
+		if (!ndd) {
+			loop_bitmask = 0;
+			break;
+		}
+
 		nsindex = to_namespace_index(ndd, ndd->ns_current);
 		if (nsindex == NULL)
 			loop_bitmask |= 1;
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index e9aa453da50c..39dfd7affa31 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -262,16 +262,9 @@ static size_t pmem_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff,
 	return copy_from_iter_flushcache(addr, bytes, i);
 }
 
-static void pmem_dax_flush(struct dax_device *dax_dev, pgoff_t pgoff,
-		void *addr, size_t size)
-{
-	arch_wb_cache_pmem(addr, size);
-}
-
 static const struct dax_operations pmem_dax_ops = {
 	.direct_access = pmem_dax_direct_access,
 	.copy_from_iter = pmem_copy_from_iter,
-	.flush = pmem_dax_flush,
 };
 
 static const struct attribute_group *pmem_attribute_groups[] = {
diff --git a/drivers/nvdimm/pmem.h b/drivers/nvdimm/pmem.h
index c5917f040fa7..6a3cd2a10db6 100644
--- a/drivers/nvdimm/pmem.h
+++ b/drivers/nvdimm/pmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NVDIMM_PMEM_H__
 #define __NVDIMM_PMEM_H__
 #include <linux/badblocks.h>
diff --git a/drivers/nvme/Kconfig b/drivers/nvme/Kconfig
index b7c78a5b1f7a..04008e0bbe81 100644
--- a/drivers/nvme/Kconfig
+++ b/drivers/nvme/Kconfig
@@ -1,2 +1,6 @@
+menu "NVME Support"
+
 source "drivers/nvme/host/Kconfig"
 source "drivers/nvme/target/Kconfig"
+
+endmenu
diff --git a/drivers/nvme/host/Kconfig b/drivers/nvme/host/Kconfig
index 46d6cb1e03bd..b979cf3bce65 100644
--- a/drivers/nvme/host/Kconfig
+++ b/drivers/nvme/host/Kconfig
@@ -13,6 +13,15 @@ config BLK_DEV_NVME
 	  To compile this driver as a module, choose M here: the
 	  module will be called nvme.
 
+config NVME_MULTIPATH
+	bool "NVMe multipath support"
+	depends on NVME_CORE
+	---help---
+	   This option enables support for multipath access to NVMe
+	   subsystems.  If this option is enabled only a single
+	   /dev/nvmeXnY device will show up for each NVMe namespaces,
+	   even if it is accessible through multiple controllers.
+
 config NVME_FABRICS
 	tristate
 
diff --git a/drivers/nvme/host/Makefile b/drivers/nvme/host/Makefile
index cc0aacb4c8b4..a25fd43650ad 100644
--- a/drivers/nvme/host/Makefile
+++ b/drivers/nvme/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NVME_CORE)			+= nvme-core.o
 obj-$(CONFIG_BLK_DEV_NVME)		+= nvme.o
 obj-$(CONFIG_NVME_FABRICS)		+= nvme-fabrics.o
@@ -5,6 +6,7 @@ obj-$(CONFIG_NVME_RDMA)			+= nvme-rdma.o
 obj-$(CONFIG_NVME_FC)			+= nvme-fc.o
 
 nvme-core-y				:= core.o
+nvme-core-$(CONFIG_NVME_MULTIPATH)	+= multipath.o
 nvme-core-$(CONFIG_NVM)			+= lightnvm.o
 
 nvme-y					+= pci.o
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index acc816b67582..25da74d310d1 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -34,13 +34,13 @@
 
 #define NVME_MINORS		(1U << MINORBITS)
 
-unsigned char admin_timeout = 60;
-module_param(admin_timeout, byte, 0644);
+unsigned int admin_timeout = 60;
+module_param(admin_timeout, uint, 0644);
 MODULE_PARM_DESC(admin_timeout, "timeout in seconds for admin commands");
 EXPORT_SYMBOL_GPL(admin_timeout);
 
-unsigned char nvme_io_timeout = 30;
-module_param_named(io_timeout, nvme_io_timeout, byte, 0644);
+unsigned int nvme_io_timeout = 30;
+module_param_named(io_timeout, nvme_io_timeout, uint, 0644);
 MODULE_PARM_DESC(io_timeout, "timeout in seconds for I/O");
 EXPORT_SYMBOL_GPL(nvme_io_timeout);
 
@@ -52,9 +52,6 @@ static u8 nvme_max_retries = 5;
 module_param_named(max_retries, nvme_max_retries, byte, 0644);
 MODULE_PARM_DESC(max_retries, "max number of retries a command may have");
 
-static int nvme_char_major;
-module_param(nvme_char_major, int, 0);
-
 static unsigned long default_ps_max_latency_us = 100000;
 module_param(default_ps_max_latency_us, ulong, 0644);
 MODULE_PARM_DESC(default_ps_max_latency_us,
@@ -71,10 +68,17 @@ MODULE_PARM_DESC(streams, "turn on support for Streams write directives");
 struct workqueue_struct *nvme_wq;
 EXPORT_SYMBOL_GPL(nvme_wq);
 
-static LIST_HEAD(nvme_ctrl_list);
-static DEFINE_SPINLOCK(dev_list_lock);
+static DEFINE_IDA(nvme_subsystems_ida);
+static LIST_HEAD(nvme_subsystems);
+static DEFINE_MUTEX(nvme_subsystems_lock);
 
+static DEFINE_IDA(nvme_instance_ida);
+static dev_t nvme_chr_devt;
 static struct class *nvme_class;
+static struct class *nvme_subsys_class;
+
+static void nvme_ns_remove(struct nvme_ns *ns);
+static int nvme_revalidate_disk(struct gendisk *disk);
 
 static __le32 nvme_get_log_dw10(u8 lid, size_t size)
 {
@@ -101,6 +105,51 @@ static int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl)
 	return ret;
 }
 
+static void nvme_delete_ctrl_work(struct work_struct *work)
+{
+	struct nvme_ctrl *ctrl =
+		container_of(work, struct nvme_ctrl, delete_work);
+
+	flush_work(&ctrl->reset_work);
+	nvme_stop_ctrl(ctrl);
+	nvme_remove_namespaces(ctrl);
+	ctrl->ops->delete_ctrl(ctrl);
+	nvme_uninit_ctrl(ctrl);
+	nvme_put_ctrl(ctrl);
+}
+
+int nvme_delete_ctrl(struct nvme_ctrl *ctrl)
+{
+	if (!nvme_change_ctrl_state(ctrl, NVME_CTRL_DELETING))
+		return -EBUSY;
+	if (!queue_work(nvme_wq, &ctrl->delete_work))
+		return -EBUSY;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nvme_delete_ctrl);
+
+int nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl)
+{
+	int ret = 0;
+
+	/*
+	 * Keep a reference until the work is flushed since ->delete_ctrl
+	 * can free the controller.
+	 */
+	nvme_get_ctrl(ctrl);
+	ret = nvme_delete_ctrl(ctrl);
+	if (!ret)
+		flush_work(&ctrl->delete_work);
+	nvme_put_ctrl(ctrl);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(nvme_delete_ctrl_sync);
+
+static inline bool nvme_ns_has_pi(struct nvme_ns *ns)
+{
+	return ns->pi_type && ns->ms == sizeof(struct t10_pi_tuple);
+}
+
 static blk_status_t nvme_error_status(struct request *req)
 {
 	switch (nvme_req(req)->status & 0x7ff) {
@@ -134,8 +183,6 @@ static inline bool nvme_req_needs_retry(struct request *req)
 		return false;
 	if (nvme_req(req)->status & NVME_SC_DNR)
 		return false;
-	if (jiffies - req->start_time >= req->timeout)
-		return false;
 	if (nvme_req(req)->retries >= nvme_max_retries)
 		return false;
 	return true;
@@ -144,9 +191,16 @@ static inline bool nvme_req_needs_retry(struct request *req)
 void nvme_complete_rq(struct request *req)
 {
 	if (unlikely(nvme_req(req)->status && nvme_req_needs_retry(req))) {
-		nvme_req(req)->retries++;
-		blk_mq_requeue_request(req, true);
-		return;
+		if (nvme_req_needs_failover(req)) {
+			nvme_failover_req(req);
+			return;
+		}
+
+		if (!blk_queue_dying(req->q)) {
+			nvme_req(req)->retries++;
+			blk_mq_requeue_request(req, true);
+			return;
+		}
 	}
 
 	blk_mq_end_request(req, nvme_error_status(req));
@@ -155,18 +209,13 @@ EXPORT_SYMBOL_GPL(nvme_complete_rq);
 
 void nvme_cancel_request(struct request *req, void *data, bool reserved)
 {
-	int status;
-
 	if (!blk_mq_request_started(req))
 		return;
 
 	dev_dbg_ratelimited(((struct nvme_ctrl *) data)->device,
 				"Cancelling I/O %d", req->tag);
 
-	status = NVME_SC_ABORT_REQ;
-	if (blk_queue_dying(req->q))
-		status |= NVME_SC_DNR;
-	nvme_req(req)->status = status;
+	nvme_req(req)->status = NVME_SC_ABORT_REQ;
 	blk_mq_complete_request(req);
 
 }
@@ -207,6 +256,7 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
 	case NVME_CTRL_RECONNECTING:
 		switch (old_state) {
 		case NVME_CTRL_LIVE:
+		case NVME_CTRL_RESETTING:
 			changed = true;
 			/* FALLTHRU */
 		default:
@@ -241,11 +291,29 @@ bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
 		ctrl->state = new_state;
 
 	spin_unlock_irqrestore(&ctrl->lock, flags);
-
+	if (changed && ctrl->state == NVME_CTRL_LIVE)
+		nvme_kick_requeue_lists(ctrl);
 	return changed;
 }
 EXPORT_SYMBOL_GPL(nvme_change_ctrl_state);
 
+static void nvme_free_ns_head(struct kref *ref)
+{
+	struct nvme_ns_head *head =
+		container_of(ref, struct nvme_ns_head, ref);
+
+	nvme_mpath_remove_disk(head);
+	ida_simple_remove(&head->subsys->ns_ida, head->instance);
+	list_del_init(&head->entry);
+	cleanup_srcu_struct(&head->srcu);
+	kfree(head);
+}
+
+static void nvme_put_ns_head(struct nvme_ns_head *head)
+{
+	kref_put(&head->ref, nvme_free_ns_head);
+}
+
 static void nvme_free_ns(struct kref *kref)
 {
 	struct nvme_ns *ns = container_of(kref, struct nvme_ns, kref);
@@ -253,14 +321,8 @@ static void nvme_free_ns(struct kref *kref)
 	if (ns->ndev)
 		nvme_nvm_unregister(ns);
 
-	if (ns->disk) {
-		spin_lock(&dev_list_lock);
-		ns->disk->private_data = NULL;
-		spin_unlock(&dev_list_lock);
-	}
-
 	put_disk(ns->disk);
-	ida_simple_remove(&ns->ctrl->ns_ida, ns->instance);
+	nvme_put_ns_head(ns->head);
 	nvme_put_ctrl(ns->ctrl);
 	kfree(ns);
 }
@@ -270,31 +332,8 @@ static void nvme_put_ns(struct nvme_ns *ns)
 	kref_put(&ns->kref, nvme_free_ns);
 }
 
-static struct nvme_ns *nvme_get_ns_from_disk(struct gendisk *disk)
-{
-	struct nvme_ns *ns;
-
-	spin_lock(&dev_list_lock);
-	ns = disk->private_data;
-	if (ns) {
-		if (!kref_get_unless_zero(&ns->kref))
-			goto fail;
-		if (!try_module_get(ns->ctrl->ops->module))
-			goto fail_put_ns;
-	}
-	spin_unlock(&dev_list_lock);
-
-	return ns;
-
-fail_put_ns:
-	kref_put(&ns->kref, nvme_free_ns);
-fail:
-	spin_unlock(&dev_list_lock);
-	return NULL;
-}
-
 struct request *nvme_alloc_request(struct request_queue *q,
-		struct nvme_command *cmd, unsigned int flags, int qid)
+		struct nvme_command *cmd, blk_mq_req_flags_t flags, int qid)
 {
 	unsigned op = nvme_is_write(cmd) ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN;
 	struct request *req;
@@ -419,7 +458,7 @@ static inline void nvme_setup_flush(struct nvme_ns *ns,
 {
 	memset(cmnd, 0, sizeof(*cmnd));
 	cmnd->common.opcode = nvme_cmd_flush;
-	cmnd->common.nsid = cpu_to_le32(ns->ns_id);
+	cmnd->common.nsid = cpu_to_le32(ns->head->ns_id);
 }
 
 static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
@@ -450,7 +489,7 @@ static blk_status_t nvme_setup_discard(struct nvme_ns *ns, struct request *req,
 
 	memset(cmnd, 0, sizeof(*cmnd));
 	cmnd->dsm.opcode = nvme_cmd_dsm;
-	cmnd->dsm.nsid = cpu_to_le32(ns->ns_id);
+	cmnd->dsm.nsid = cpu_to_le32(ns->head->ns_id);
 	cmnd->dsm.nr = cpu_to_le32(segments - 1);
 	cmnd->dsm.attributes = cpu_to_le32(NVME_DSMGMT_AD);
 
@@ -469,16 +508,6 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
 	u16 control = 0;
 	u32 dsmgmt = 0;
 
-	/*
-	 * If formated with metadata, require the block layer provide a buffer
-	 * unless this namespace is formated such that the metadata can be
-	 * stripped/generated by the controller with PRACT=1.
-	 */
-	if (ns && ns->ms &&
-	    (!ns->pi_type || ns->ms != sizeof(struct t10_pi_tuple)) &&
-	    !blk_integrity_rq(req) && !blk_rq_is_passthrough(req))
-		return BLK_STS_NOTSUPP;
-
 	if (req->cmd_flags & REQ_FUA)
 		control |= NVME_RW_FUA;
 	if (req->cmd_flags & (REQ_FAILFAST_DEV | REQ_RAHEAD))
@@ -489,7 +518,7 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
 
 	memset(cmnd, 0, sizeof(*cmnd));
 	cmnd->rw.opcode = (rq_data_dir(req) ? nvme_cmd_write : nvme_cmd_read);
-	cmnd->rw.nsid = cpu_to_le32(ns->ns_id);
+	cmnd->rw.nsid = cpu_to_le32(ns->head->ns_id);
 	cmnd->rw.slba = cpu_to_le64(nvme_block_nr(ns, blk_rq_pos(req)));
 	cmnd->rw.length = cpu_to_le16((blk_rq_bytes(req) >> ns->lba_shift) - 1);
 
@@ -497,6 +526,18 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
 		nvme_assign_write_stream(ctrl, req, &control, &dsmgmt);
 
 	if (ns->ms) {
+		/*
+		 * If formated with metadata, the block layer always provides a
+		 * metadata buffer if CONFIG_BLK_DEV_INTEGRITY is enabled.  Else
+		 * we enable the PRACT bit for protection information or set the
+		 * namespace capacity to zero to prevent any I/O.
+		 */
+		if (!blk_integrity_rq(req)) {
+			if (WARN_ON_ONCE(!nvme_ns_has_pi(ns)))
+				return BLK_STS_NOTSUPP;
+			control |= NVME_RW_PRINFO_PRACT;
+		}
+
 		switch (ns->pi_type) {
 		case NVME_NS_DPS_PI_TYPE3:
 			control |= NVME_RW_PRINFO_PRCHK_GUARD;
@@ -509,8 +550,6 @@ static inline blk_status_t nvme_setup_rw(struct nvme_ns *ns,
 					nvme_block_nr(ns, blk_rq_pos(req)));
 			break;
 		}
-		if (!blk_integrity_rq(req))
-			control |= NVME_RW_PRINFO_PRACT;
 	}
 
 	cmnd->rw.control = cpu_to_le16(control);
@@ -562,7 +601,8 @@ EXPORT_SYMBOL_GPL(nvme_setup_cmd);
  */
 int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 		union nvme_result *result, void *buffer, unsigned bufflen,
-		unsigned timeout, int qid, int at_head, int flags)
+		unsigned timeout, int qid, int at_head,
+		blk_mq_req_flags_t flags)
 {
 	struct request *req;
 	int ret;
@@ -780,7 +820,7 @@ static int nvme_identify_ctrl(struct nvme_ctrl *dev, struct nvme_id_ctrl **id)
 }
 
 static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
-		u8 *eui64, u8 *nguid, uuid_t *uuid)
+		struct nvme_ns_ids *ids)
 {
 	struct nvme_command c = { };
 	int status;
@@ -816,7 +856,7 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
 				goto free_data;
 			}
 			len = NVME_NIDT_EUI64_LEN;
-			memcpy(eui64, data + pos + sizeof(*cur), len);
+			memcpy(ids->eui64, data + pos + sizeof(*cur), len);
 			break;
 		case NVME_NIDT_NGUID:
 			if (cur->nidl != NVME_NIDT_NGUID_LEN) {
@@ -826,7 +866,7 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
 				goto free_data;
 			}
 			len = NVME_NIDT_NGUID_LEN;
-			memcpy(nguid, data + pos + sizeof(*cur), len);
+			memcpy(ids->nguid, data + pos + sizeof(*cur), len);
 			break;
 		case NVME_NIDT_UUID:
 			if (cur->nidl != NVME_NIDT_UUID_LEN) {
@@ -836,7 +876,7 @@ static int nvme_identify_ns_descs(struct nvme_ctrl *ctrl, unsigned nsid,
 				goto free_data;
 			}
 			len = NVME_NIDT_UUID_LEN;
-			uuid_copy(uuid, data + pos + sizeof(*cur));
+			uuid_copy(&ids->uuid, data + pos + sizeof(*cur));
 			break;
 		default:
 			/* Skip unnkown types */
@@ -970,7 +1010,7 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
 	memset(&c, 0, sizeof(c));
 	c.rw.opcode = io.opcode;
 	c.rw.flags = io.flags;
-	c.rw.nsid = cpu_to_le32(ns->ns_id);
+	c.rw.nsid = cpu_to_le32(ns->head->ns_id);
 	c.rw.slba = cpu_to_le64(io.slba);
 	c.rw.length = cpu_to_le16(io.nblocks);
 	c.rw.control = cpu_to_le16(io.control);
@@ -984,12 +1024,87 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
 			metadata, meta_len, io.slba, NULL, 0);
 }
 
+static u32 nvme_known_admin_effects(u8 opcode)
+{
+	switch (opcode) {
+	case nvme_admin_format_nvm:
+		return NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC |
+					NVME_CMD_EFFECTS_CSE_MASK;
+	case nvme_admin_sanitize_nvm:
+		return NVME_CMD_EFFECTS_CSE_MASK;
+	default:
+		break;
+	}
+	return 0;
+}
+
+static u32 nvme_passthru_start(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
+								u8 opcode)
+{
+	u32 effects = 0;
+
+	if (ns) {
+		if (ctrl->effects)
+			effects = le32_to_cpu(ctrl->effects->iocs[opcode]);
+		if (effects & ~NVME_CMD_EFFECTS_CSUPP)
+			dev_warn(ctrl->device,
+				 "IO command:%02x has unhandled effects:%08x\n",
+				 opcode, effects);
+		return 0;
+	}
+
+	if (ctrl->effects)
+		effects = le32_to_cpu(ctrl->effects->iocs[opcode]);
+	else
+		effects = nvme_known_admin_effects(opcode);
+
+	/*
+	 * For simplicity, IO to all namespaces is quiesced even if the command
+	 * effects say only one namespace is affected.
+	 */
+	if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK)) {
+		nvme_start_freeze(ctrl);
+		nvme_wait_freeze(ctrl);
+	}
+	return effects;
+}
+
+static void nvme_update_formats(struct nvme_ctrl *ctrl)
+{
+	struct nvme_ns *ns;
+
+	mutex_lock(&ctrl->namespaces_mutex);
+	list_for_each_entry(ns, &ctrl->namespaces, list) {
+		if (ns->disk && nvme_revalidate_disk(ns->disk))
+			nvme_ns_remove(ns);
+	}
+	mutex_unlock(&ctrl->namespaces_mutex);
+}
+
+static void nvme_passthru_end(struct nvme_ctrl *ctrl, u32 effects)
+{
+	/*
+	 * Revalidate LBA changes prior to unfreezing. This is necessary to
+	 * prevent memory corruption if a logical block size was changed by
+	 * this command.
+	 */
+	if (effects & NVME_CMD_EFFECTS_LBCC)
+		nvme_update_formats(ctrl);
+	if (effects & (NVME_CMD_EFFECTS_LBCC | NVME_CMD_EFFECTS_CSE_MASK))
+		nvme_unfreeze(ctrl);
+	if (effects & NVME_CMD_EFFECTS_CCC)
+		nvme_init_identify(ctrl);
+	if (effects & (NVME_CMD_EFFECTS_NIC | NVME_CMD_EFFECTS_NCC))
+		nvme_queue_scan(ctrl);
+}
+
 static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
 			struct nvme_passthru_cmd __user *ucmd)
 {
 	struct nvme_passthru_cmd cmd;
 	struct nvme_command c;
 	unsigned timeout = 0;
+	u32 effects;
 	int status;
 
 	if (!capable(CAP_SYS_ADMIN))
@@ -1015,10 +1130,13 @@ static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
 	if (cmd.timeout_ms)
 		timeout = msecs_to_jiffies(cmd.timeout_ms);
 
+	effects = nvme_passthru_start(ctrl, ns, cmd.opcode);
 	status = nvme_submit_user_cmd(ns ? ns->queue : ctrl->admin_q, &c,
 			(void __user *)(uintptr_t)cmd.addr, cmd.data_len,
 			(void __user *)(uintptr_t)cmd.metadata, cmd.metadata,
 			0, &cmd.result, timeout);
+	nvme_passthru_end(ctrl, effects);
+
 	if (status >= 0) {
 		if (put_user(cmd.result, &ucmd->result))
 			return -EFAULT;
@@ -1027,15 +1145,37 @@ static int nvme_user_cmd(struct nvme_ctrl *ctrl, struct nvme_ns *ns,
 	return status;
 }
 
-static int nvme_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
+/*
+ * Issue ioctl requests on the first available path.  Note that unlike normal
+ * block layer requests we will not retry failed request on another controller.
+ */
+static struct nvme_ns *nvme_get_ns_from_disk(struct gendisk *disk,
+		struct nvme_ns_head **head, int *srcu_idx)
 {
-	struct nvme_ns *ns = bdev->bd_disk->private_data;
+#ifdef CONFIG_NVME_MULTIPATH
+	if (disk->fops == &nvme_ns_head_ops) {
+		*head = disk->private_data;
+		*srcu_idx = srcu_read_lock(&(*head)->srcu);
+		return nvme_find_path(*head);
+	}
+#endif
+	*head = NULL;
+	*srcu_idx = -1;
+	return disk->private_data;
+}
 
+static void nvme_put_ns_from_disk(struct nvme_ns_head *head, int idx)
+{
+	if (head)
+		srcu_read_unlock(&head->srcu, idx);
+}
+
+static int nvme_ns_ioctl(struct nvme_ns *ns, unsigned cmd, unsigned long arg)
+{
 	switch (cmd) {
 	case NVME_IOCTL_ID:
 		force_successful_syscall_return();
-		return ns->ns_id;
+		return ns->head->ns_id;
 	case NVME_IOCTL_ADMIN_CMD:
 		return nvme_user_cmd(ns->ctrl, NULL, (void __user *)arg);
 	case NVME_IOCTL_IO_CMD:
@@ -1054,27 +1194,39 @@ static int nvme_ioctl(struct block_device *bdev, fmode_t mode,
 	}
 }
 
-#ifdef CONFIG_COMPAT
-static int nvme_compat_ioctl(struct block_device *bdev, fmode_t mode,
-			unsigned int cmd, unsigned long arg)
+static int nvme_ioctl(struct block_device *bdev, fmode_t mode,
+		unsigned int cmd, unsigned long arg)
 {
-	return nvme_ioctl(bdev, mode, cmd, arg);
+	struct nvme_ns_head *head = NULL;
+	struct nvme_ns *ns;
+	int srcu_idx, ret;
+
+	ns = nvme_get_ns_from_disk(bdev->bd_disk, &head, &srcu_idx);
+	if (unlikely(!ns))
+		ret = -EWOULDBLOCK;
+	else
+		ret = nvme_ns_ioctl(ns, cmd, arg);
+	nvme_put_ns_from_disk(head, srcu_idx);
+	return ret;
 }
-#else
-#define nvme_compat_ioctl	NULL
-#endif
 
 static int nvme_open(struct block_device *bdev, fmode_t mode)
 {
-	return nvme_get_ns_from_disk(bdev->bd_disk) ? 0 : -ENXIO;
+	struct nvme_ns *ns = bdev->bd_disk->private_data;
+
+#ifdef CONFIG_NVME_MULTIPATH
+	/* should never be called due to GENHD_FL_HIDDEN */
+	if (WARN_ON_ONCE(ns->head->disk))
+		return -ENXIO;
+#endif
+	if (!kref_get_unless_zero(&ns->kref))
+		return -ENXIO;
+	return 0;
 }
 
 static void nvme_release(struct gendisk *disk, fmode_t mode)
 {
-	struct nvme_ns *ns = disk->private_data;
-
-	module_put(ns->ctrl->ops->module);
-	nvme_put_ns(ns);
+	nvme_put_ns(disk->private_data);
 }
 
 static int nvme_getgeo(struct block_device *bdev, struct hd_geometry *geo)
@@ -1087,35 +1239,12 @@ static int nvme_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 }
 
 #ifdef CONFIG_BLK_DEV_INTEGRITY
-static void nvme_prep_integrity(struct gendisk *disk, struct nvme_id_ns *id,
-		u16 bs)
-{
-	struct nvme_ns *ns = disk->private_data;
-	u16 old_ms = ns->ms;
-	u8 pi_type = 0;
-
-	ns->ms = le16_to_cpu(id->lbaf[id->flbas & NVME_NS_FLBAS_LBA_MASK].ms);
-	ns->ext = ns->ms && (id->flbas & NVME_NS_FLBAS_META_EXT);
-
-	/* PI implementation requires metadata equal t10 pi tuple size */
-	if (ns->ms == sizeof(struct t10_pi_tuple))
-		pi_type = id->dps & NVME_NS_DPS_PI_MASK;
-
-	if (blk_get_integrity(disk) &&
-	    (ns->pi_type != pi_type || ns->ms != old_ms ||
-	     bs != queue_logical_block_size(disk->queue) ||
-	     (ns->ms && ns->ext)))
-		blk_integrity_unregister(disk);
-
-	ns->pi_type = pi_type;
-}
-
-static void nvme_init_integrity(struct nvme_ns *ns)
+static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type)
 {
 	struct blk_integrity integrity;
 
 	memset(&integrity, 0, sizeof(integrity));
-	switch (ns->pi_type) {
+	switch (pi_type) {
 	case NVME_NS_DPS_PI_TYPE3:
 		integrity.profile = &t10_pi_type3_crc;
 		integrity.tag_size = sizeof(u16) + sizeof(u32);
@@ -1131,16 +1260,12 @@ static void nvme_init_integrity(struct nvme_ns *ns)
 		integrity.profile = NULL;
 		break;
 	}
-	integrity.tuple_size = ns->ms;
-	blk_integrity_register(ns->disk, &integrity);
-	blk_queue_max_integrity_segments(ns->queue, 1);
+	integrity.tuple_size = ms;
+	blk_integrity_register(disk, &integrity);
+	blk_queue_max_integrity_segments(disk->queue, 1);
 }
 #else
-static void nvme_prep_integrity(struct gendisk *disk, struct nvme_id_ns *id,
-		u16 bs)
-{
-}
-static void nvme_init_integrity(struct nvme_ns *ns)
+static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type)
 {
 }
 #endif /* CONFIG_BLK_DEV_INTEGRITY */
@@ -1151,53 +1276,89 @@ static void nvme_set_chunk_size(struct nvme_ns *ns)
 	blk_queue_chunk_sectors(ns->queue, rounddown_pow_of_two(chunk_size));
 }
 
-static void nvme_config_discard(struct nvme_ns *ns)
+static void nvme_config_discard(struct nvme_ctrl *ctrl,
+		unsigned stream_alignment, struct request_queue *queue)
 {
-	struct nvme_ctrl *ctrl = ns->ctrl;
-	u32 logical_block_size = queue_logical_block_size(ns->queue);
+	u32 size = queue_logical_block_size(queue);
+
+	if (stream_alignment)
+		size *= stream_alignment;
 
 	BUILD_BUG_ON(PAGE_SIZE / sizeof(struct nvme_dsm_range) <
 			NVME_DSM_MAX_RANGES);
 
-	if (ctrl->nr_streams && ns->sws && ns->sgs) {
-		unsigned int sz = logical_block_size * ns->sws * ns->sgs;
+	queue->limits.discard_alignment = size;
+	queue->limits.discard_granularity = size;
 
-		ns->queue->limits.discard_alignment = sz;
-		ns->queue->limits.discard_granularity = sz;
-	} else {
-		ns->queue->limits.discard_alignment = logical_block_size;
-		ns->queue->limits.discard_granularity = logical_block_size;
-	}
-	blk_queue_max_discard_sectors(ns->queue, UINT_MAX);
-	blk_queue_max_discard_segments(ns->queue, NVME_DSM_MAX_RANGES);
-	queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, ns->queue);
+	blk_queue_max_discard_sectors(queue, UINT_MAX);
+	blk_queue_max_discard_segments(queue, NVME_DSM_MAX_RANGES);
+	queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, queue);
 
 	if (ctrl->quirks & NVME_QUIRK_DEALLOCATE_ZEROES)
-		blk_queue_max_write_zeroes_sectors(ns->queue, UINT_MAX);
+		blk_queue_max_write_zeroes_sectors(queue, UINT_MAX);
 }
 
 static void nvme_report_ns_ids(struct nvme_ctrl *ctrl, unsigned int nsid,
-		struct nvme_id_ns *id, u8 *eui64, u8 *nguid, uuid_t *uuid)
+		struct nvme_id_ns *id, struct nvme_ns_ids *ids)
 {
+	memset(ids, 0, sizeof(*ids));
+
 	if (ctrl->vs >= NVME_VS(1, 1, 0))
-		memcpy(eui64, id->eui64, sizeof(id->eui64));
+		memcpy(ids->eui64, id->eui64, sizeof(id->eui64));
 	if (ctrl->vs >= NVME_VS(1, 2, 0))
-		memcpy(nguid, id->nguid, sizeof(id->nguid));
+		memcpy(ids->nguid, id->nguid, sizeof(id->nguid));
 	if (ctrl->vs >= NVME_VS(1, 3, 0)) {
 		 /* Don't treat error as fatal we potentially
 		  * already have a NGUID or EUI-64
 		  */
-		if (nvme_identify_ns_descs(ctrl, nsid, eui64, nguid, uuid))
+		if (nvme_identify_ns_descs(ctrl, nsid, ids))
 			dev_warn(ctrl->device,
 				 "%s: Identify Descriptors failed\n", __func__);
 	}
 }
 
+static bool nvme_ns_ids_valid(struct nvme_ns_ids *ids)
+{
+	return !uuid_is_null(&ids->uuid) ||
+		memchr_inv(ids->nguid, 0, sizeof(ids->nguid)) ||
+		memchr_inv(ids->eui64, 0, sizeof(ids->eui64));
+}
+
+static bool nvme_ns_ids_equal(struct nvme_ns_ids *a, struct nvme_ns_ids *b)
+{
+	return uuid_equal(&a->uuid, &b->uuid) &&
+		memcmp(&a->nguid, &b->nguid, sizeof(a->nguid)) == 0 &&
+		memcmp(&a->eui64, &b->eui64, sizeof(a->eui64)) == 0;
+}
+
+static void nvme_update_disk_info(struct gendisk *disk,
+		struct nvme_ns *ns, struct nvme_id_ns *id)
+{
+	sector_t capacity = le64_to_cpup(&id->nsze) << (ns->lba_shift - 9);
+	unsigned stream_alignment = 0;
+
+	if (ns->ctrl->nr_streams && ns->sws && ns->sgs)
+		stream_alignment = ns->sws * ns->sgs;
+
+	blk_mq_freeze_queue(disk->queue);
+	blk_integrity_unregister(disk);
+
+	blk_queue_logical_block_size(disk->queue, 1 << ns->lba_shift);
+	if (ns->ms && !ns->ext &&
+	    (ns->ctrl->ops->flags & NVME_F_METADATA_SUPPORTED))
+		nvme_init_integrity(disk, ns->ms, ns->pi_type);
+	if (ns->ms && !nvme_ns_has_pi(ns) && !blk_get_integrity(disk))
+		capacity = 0;
+	set_capacity(disk, capacity);
+
+	if (ns->ctrl->oncs & NVME_CTRL_ONCS_DSM)
+		nvme_config_discard(ns->ctrl, stream_alignment, disk->queue);
+	blk_mq_unfreeze_queue(disk->queue);
+}
+
 static void __nvme_revalidate_disk(struct gendisk *disk, struct nvme_id_ns *id)
 {
 	struct nvme_ns *ns = disk->private_data;
-	struct nvme_ctrl *ctrl = ns->ctrl;
-	u16 bs;
 
 	/*
 	 * If identify namespace failed, use default 512 byte block size so
@@ -1206,26 +1367,22 @@ static void __nvme_revalidate_disk(struct gendisk *disk, struct nvme_id_ns *id)
 	ns->lba_shift = id->lbaf[id->flbas & NVME_NS_FLBAS_LBA_MASK].ds;
 	if (ns->lba_shift == 0)
 		ns->lba_shift = 9;
-	bs = 1 << ns->lba_shift;
 	ns->noiob = le16_to_cpu(id->noiob);
+	ns->ext = ns->ms && (id->flbas & NVME_NS_FLBAS_META_EXT);
+	ns->ms = le16_to_cpu(id->lbaf[id->flbas & NVME_NS_FLBAS_LBA_MASK].ms);
+	/* the PI implementation requires metadata equal t10 pi tuple size */
+	if (ns->ms == sizeof(struct t10_pi_tuple))
+		ns->pi_type = id->dps & NVME_NS_DPS_PI_MASK;
+	else
+		ns->pi_type = 0;
 
-	blk_mq_freeze_queue(disk->queue);
-
-	if (ctrl->ops->flags & NVME_F_METADATA_SUPPORTED)
-		nvme_prep_integrity(disk, id, bs);
-	blk_queue_logical_block_size(ns->queue, bs);
 	if (ns->noiob)
 		nvme_set_chunk_size(ns);
-	if (ns->ms && !blk_get_integrity(disk) && !ns->ext)
-		nvme_init_integrity(ns);
-	if (ns->ms && !(ns->ms == 8 && ns->pi_type) && !blk_get_integrity(disk))
-		set_capacity(disk, 0);
-	else
-		set_capacity(disk, le64_to_cpup(&id->nsze) << (ns->lba_shift - 9));
-
-	if (ctrl->oncs & NVME_CTRL_ONCS_DSM)
-		nvme_config_discard(ns);
-	blk_mq_unfreeze_queue(disk->queue);
+	nvme_update_disk_info(disk, ns, id);
+#ifdef CONFIG_NVME_MULTIPATH
+	if (ns->head->disk)
+		nvme_update_disk_info(ns->head->disk, ns, id);
+#endif
 }
 
 static int nvme_revalidate_disk(struct gendisk *disk)
@@ -1233,8 +1390,7 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 	struct nvme_ns *ns = disk->private_data;
 	struct nvme_ctrl *ctrl = ns->ctrl;
 	struct nvme_id_ns *id;
-	u8 eui64[8] = { 0 }, nguid[16] = { 0 };
-	uuid_t uuid = uuid_null;
+	struct nvme_ns_ids ids;
 	int ret = 0;
 
 	if (test_bit(NVME_NS_DEAD, &ns->flags)) {
@@ -1242,7 +1398,7 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 		return -ENODEV;
 	}
 
-	id = nvme_identify_ns(ctrl, ns->ns_id);
+	id = nvme_identify_ns(ctrl, ns->head->ns_id);
 	if (!id)
 		return -ENODEV;
 
@@ -1251,12 +1407,11 @@ static int nvme_revalidate_disk(struct gendisk *disk)
 		goto out;
 	}
 
-	nvme_report_ns_ids(ctrl, ns->ns_id, id, eui64, nguid, &uuid);
-	if (!uuid_equal(&ns->uuid, &uuid) ||
-	    memcmp(&ns->nguid, &nguid, sizeof(ns->nguid)) ||
-	    memcmp(&ns->eui, &eui64, sizeof(ns->eui))) {
+	__nvme_revalidate_disk(disk, id);
+	nvme_report_ns_ids(ctrl, ns->head->ns_id, id, &ids);
+	if (!nvme_ns_ids_equal(&ns->head->ids, &ids)) {
 		dev_err(ctrl->device,
-			"identifiers changed for nsid %d\n", ns->ns_id);
+			"identifiers changed for nsid %d\n", ns->head->ns_id);
 		ret = -ENODEV;
 	}
 
@@ -1288,8 +1443,10 @@ static char nvme_pr_type(enum pr_type type)
 static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
 				u64 key, u64 sa_key, u8 op)
 {
-	struct nvme_ns *ns = bdev->bd_disk->private_data;
+	struct nvme_ns_head *head = NULL;
+	struct nvme_ns *ns;
 	struct nvme_command c;
+	int srcu_idx, ret;
 	u8 data[16] = { 0, };
 
 	put_unaligned_le64(key, &data[0]);
@@ -1297,10 +1454,16 @@ static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
 
 	memset(&c, 0, sizeof(c));
 	c.common.opcode = op;
-	c.common.nsid = cpu_to_le32(ns->ns_id);
+	c.common.nsid = cpu_to_le32(head->ns_id);
 	c.common.cdw10[0] = cpu_to_le32(cdw10);
 
-	return nvme_submit_sync_cmd(ns->queue, &c, data, 16);
+	ns = nvme_get_ns_from_disk(bdev->bd_disk, &head, &srcu_idx);
+	if (unlikely(!ns))
+		ret = -EWOULDBLOCK;
+	else
+		ret = nvme_submit_sync_cmd(ns->queue, &c, data, 16);
+	nvme_put_ns_from_disk(head, srcu_idx);
+	return ret;
 }
 
 static int nvme_pr_register(struct block_device *bdev, u64 old,
@@ -1382,7 +1545,7 @@ EXPORT_SYMBOL_GPL(nvme_sec_submit);
 static const struct block_device_operations nvme_fops = {
 	.owner		= THIS_MODULE,
 	.ioctl		= nvme_ioctl,
-	.compat_ioctl	= nvme_compat_ioctl,
+	.compat_ioctl	= nvme_ioctl,
 	.open		= nvme_open,
 	.release	= nvme_release,
 	.getgeo		= nvme_getgeo,
@@ -1390,6 +1553,32 @@ static const struct block_device_operations nvme_fops = {
 	.pr_ops		= &nvme_pr_ops,
 };
 
+#ifdef CONFIG_NVME_MULTIPATH
+static int nvme_ns_head_open(struct block_device *bdev, fmode_t mode)
+{
+	struct nvme_ns_head *head = bdev->bd_disk->private_data;
+
+	if (!kref_get_unless_zero(&head->ref))
+		return -ENXIO;
+	return 0;
+}
+
+static void nvme_ns_head_release(struct gendisk *disk, fmode_t mode)
+{
+	nvme_put_ns_head(disk->private_data);
+}
+
+const struct block_device_operations nvme_ns_head_ops = {
+	.owner		= THIS_MODULE,
+	.open		= nvme_ns_head_open,
+	.release	= nvme_ns_head_release,
+	.ioctl		= nvme_ioctl,
+	.compat_ioctl	= nvme_ioctl,
+	.getgeo		= nvme_getgeo,
+	.pr_ops		= &nvme_pr_ops,
+};
+#endif /* CONFIG_NVME_MULTIPATH */
+
 static int nvme_wait_ready(struct nvme_ctrl *ctrl, u64 cap, bool enabled)
 {
 	unsigned long timeout =
@@ -1738,14 +1927,15 @@ static bool quirk_matches(const struct nvme_id_ctrl *id,
 		string_matches(id->fr, q->fr, sizeof(id->fr));
 }
 
-static void nvme_init_subnqn(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
+static void nvme_init_subnqn(struct nvme_subsystem *subsys, struct nvme_ctrl *ctrl,
+		struct nvme_id_ctrl *id)
 {
 	size_t nqnlen;
 	int off;
 
 	nqnlen = strnlen(id->subnqn, NVMF_NQN_SIZE);
 	if (nqnlen > 0 && nqnlen < NVMF_NQN_SIZE) {
-		strcpy(ctrl->subnqn, id->subnqn);
+		strncpy(subsys->subnqn, id->subnqn, NVMF_NQN_SIZE);
 		return;
 	}
 
@@ -1753,14 +1943,222 @@ static void nvme_init_subnqn(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
 		dev_warn(ctrl->device, "missing or invalid SUBNQN field.\n");
 
 	/* Generate a "fake" NQN per Figure 254 in NVMe 1.3 + ECN 001 */
-	off = snprintf(ctrl->subnqn, NVMF_NQN_SIZE,
+	off = snprintf(subsys->subnqn, NVMF_NQN_SIZE,
 			"nqn.2014.08.org.nvmexpress:%4x%4x",
 			le16_to_cpu(id->vid), le16_to_cpu(id->ssvid));
-	memcpy(ctrl->subnqn + off, id->sn, sizeof(id->sn));
+	memcpy(subsys->subnqn + off, id->sn, sizeof(id->sn));
 	off += sizeof(id->sn);
-	memcpy(ctrl->subnqn + off, id->mn, sizeof(id->mn));
+	memcpy(subsys->subnqn + off, id->mn, sizeof(id->mn));
 	off += sizeof(id->mn);
-	memset(ctrl->subnqn + off, 0, sizeof(ctrl->subnqn) - off);
+	memset(subsys->subnqn + off, 0, sizeof(subsys->subnqn) - off);
+}
+
+static void __nvme_release_subsystem(struct nvme_subsystem *subsys)
+{
+	ida_simple_remove(&nvme_subsystems_ida, subsys->instance);
+	kfree(subsys);
+}
+
+static void nvme_release_subsystem(struct device *dev)
+{
+	__nvme_release_subsystem(container_of(dev, struct nvme_subsystem, dev));
+}
+
+static void nvme_destroy_subsystem(struct kref *ref)
+{
+	struct nvme_subsystem *subsys =
+			container_of(ref, struct nvme_subsystem, ref);
+
+	mutex_lock(&nvme_subsystems_lock);
+	list_del(&subsys->entry);
+	mutex_unlock(&nvme_subsystems_lock);
+
+	ida_destroy(&subsys->ns_ida);
+	device_del(&subsys->dev);
+	put_device(&subsys->dev);
+}
+
+static void nvme_put_subsystem(struct nvme_subsystem *subsys)
+{
+	kref_put(&subsys->ref, nvme_destroy_subsystem);
+}
+
+static struct nvme_subsystem *__nvme_find_get_subsystem(const char *subsysnqn)
+{
+	struct nvme_subsystem *subsys;
+
+	lockdep_assert_held(&nvme_subsystems_lock);
+
+	list_for_each_entry(subsys, &nvme_subsystems, entry) {
+		if (strcmp(subsys->subnqn, subsysnqn))
+			continue;
+		if (!kref_get_unless_zero(&subsys->ref))
+			continue;
+		return subsys;
+	}
+
+	return NULL;
+}
+
+#define SUBSYS_ATTR_RO(_name, _mode, _show)			\
+	struct device_attribute subsys_attr_##_name = \
+		__ATTR(_name, _mode, _show, NULL)
+
+static ssize_t nvme_subsys_show_nqn(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	struct nvme_subsystem *subsys =
+		container_of(dev, struct nvme_subsystem, dev);
+
+	return snprintf(buf, PAGE_SIZE, "%s\n", subsys->subnqn);
+}
+static SUBSYS_ATTR_RO(subsysnqn, S_IRUGO, nvme_subsys_show_nqn);
+
+#define nvme_subsys_show_str_function(field)				\
+static ssize_t subsys_##field##_show(struct device *dev,		\
+			    struct device_attribute *attr, char *buf)	\
+{									\
+	struct nvme_subsystem *subsys =					\
+		container_of(dev, struct nvme_subsystem, dev);		\
+	return sprintf(buf, "%.*s\n",					\
+		       (int)sizeof(subsys->field), subsys->field);	\
+}									\
+static SUBSYS_ATTR_RO(field, S_IRUGO, subsys_##field##_show);
+
+nvme_subsys_show_str_function(model);
+nvme_subsys_show_str_function(serial);
+nvme_subsys_show_str_function(firmware_rev);
+
+static struct attribute *nvme_subsys_attrs[] = {
+	&subsys_attr_model.attr,
+	&subsys_attr_serial.attr,
+	&subsys_attr_firmware_rev.attr,
+	&subsys_attr_subsysnqn.attr,
+	NULL,
+};
+
+static struct attribute_group nvme_subsys_attrs_group = {
+	.attrs = nvme_subsys_attrs,
+};
+
+static const struct attribute_group *nvme_subsys_attrs_groups[] = {
+	&nvme_subsys_attrs_group,
+	NULL,
+};
+
+static int nvme_init_subsystem(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
+{
+	struct nvme_subsystem *subsys, *found;
+	int ret;
+
+	subsys = kzalloc(sizeof(*subsys), GFP_KERNEL);
+	if (!subsys)
+		return -ENOMEM;
+	ret = ida_simple_get(&nvme_subsystems_ida, 0, 0, GFP_KERNEL);
+	if (ret < 0) {
+		kfree(subsys);
+		return ret;
+	}
+	subsys->instance = ret;
+	mutex_init(&subsys->lock);
+	kref_init(&subsys->ref);
+	INIT_LIST_HEAD(&subsys->ctrls);
+	INIT_LIST_HEAD(&subsys->nsheads);
+	nvme_init_subnqn(subsys, ctrl, id);
+	memcpy(subsys->serial, id->sn, sizeof(subsys->serial));
+	memcpy(subsys->model, id->mn, sizeof(subsys->model));
+	memcpy(subsys->firmware_rev, id->fr, sizeof(subsys->firmware_rev));
+	subsys->vendor_id = le16_to_cpu(id->vid);
+	subsys->cmic = id->cmic;
+
+	subsys->dev.class = nvme_subsys_class;
+	subsys->dev.release = nvme_release_subsystem;
+	subsys->dev.groups = nvme_subsys_attrs_groups;
+	dev_set_name(&subsys->dev, "nvme-subsys%d", subsys->instance);
+	device_initialize(&subsys->dev);
+
+	mutex_lock(&nvme_subsystems_lock);
+	found = __nvme_find_get_subsystem(subsys->subnqn);
+	if (found) {
+		/*
+		 * Verify that the subsystem actually supports multiple
+		 * controllers, else bail out.
+		 */
+		if (!(id->cmic & (1 << 1))) {
+			dev_err(ctrl->device,
+				"ignoring ctrl due to duplicate subnqn (%s).\n",
+				found->subnqn);
+			nvme_put_subsystem(found);
+			ret = -EINVAL;
+			goto out_unlock;
+		}
+
+		__nvme_release_subsystem(subsys);
+		subsys = found;
+	} else {
+		ret = device_add(&subsys->dev);
+		if (ret) {
+			dev_err(ctrl->device,
+				"failed to register subsystem device.\n");
+			goto out_unlock;
+		}
+		ida_init(&subsys->ns_ida);
+		list_add_tail(&subsys->entry, &nvme_subsystems);
+	}
+
+	ctrl->subsys = subsys;
+	mutex_unlock(&nvme_subsystems_lock);
+
+	if (sysfs_create_link(&subsys->dev.kobj, &ctrl->device->kobj,
+			dev_name(ctrl->device))) {
+		dev_err(ctrl->device,
+			"failed to create sysfs link from subsystem.\n");
+		/* the transport driver will eventually put the subsystem */
+		return -EINVAL;
+	}
+
+	mutex_lock(&subsys->lock);
+	list_add_tail(&ctrl->subsys_entry, &subsys->ctrls);
+	mutex_unlock(&subsys->lock);
+
+	return 0;
+
+out_unlock:
+	mutex_unlock(&nvme_subsystems_lock);
+	put_device(&subsys->dev);
+	return ret;
+}
+
+static int nvme_get_log(struct nvme_ctrl *ctrl, u8 log_page, void *log,
+			size_t size)
+{
+	struct nvme_command c = { };
+
+	c.common.opcode = nvme_admin_get_log_page;
+	c.common.nsid = cpu_to_le32(NVME_NSID_ALL);
+	c.common.cdw10[0] = nvme_get_log_dw10(log_page, size);
+
+	return nvme_submit_sync_cmd(ctrl->admin_q, &c, log, size);
+}
+
+static int nvme_get_effects_log(struct nvme_ctrl *ctrl)
+{
+	int ret;
+
+	if (!ctrl->effects)
+		ctrl->effects = kzalloc(sizeof(*ctrl->effects), GFP_KERNEL);
+
+	if (!ctrl->effects)
+		return 0;
+
+	ret = nvme_get_log(ctrl, NVME_LOG_CMD_EFFECTS, ctrl->effects,
+					sizeof(*ctrl->effects));
+	if (ret) {
+		kfree(ctrl->effects);
+		ctrl->effects = NULL;
+	}
+	return ret;
 }
 
 /*
@@ -1798,9 +2196,19 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 		return -EIO;
 	}
 
-	nvme_init_subnqn(ctrl, id);
+	if (id->lpa & NVME_CTRL_LPA_CMD_EFFECTS_LOG) {
+		ret = nvme_get_effects_log(ctrl);
+		if (ret < 0)
+			return ret;
+	}
 
 	if (!ctrl->identified) {
+		int i;
+
+		ret = nvme_init_subsystem(ctrl, id);
+		if (ret)
+			goto out_free;
+
 		/*
 		 * Check for quirks.  Quirk can depend on firmware version,
 		 * so, in principle, the set of quirks present can change
@@ -1809,9 +2217,6 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 		 * the device, but we'd have to make sure that the driver
 		 * behaves intelligently if the quirks change.
 		 */
-
-		int i;
-
 		for (i = 0; i < ARRAY_SIZE(core_quirks); i++) {
 			if (quirk_matches(id, &core_quirks[i]))
 				ctrl->quirks |= core_quirks[i].quirks;
@@ -1824,14 +2229,10 @@ int nvme_init_identify(struct nvme_ctrl *ctrl)
 	}
 
 	ctrl->oacs = le16_to_cpu(id->oacs);
-	ctrl->vid = le16_to_cpu(id->vid);
 	ctrl->oncs = le16_to_cpup(&id->oncs);
 	atomic_set(&ctrl->abort_limit, id->acl + 1);
 	ctrl->vwc = id->vwc;
 	ctrl->cntlid = le16_to_cpup(&id->cntlid);
-	memcpy(ctrl->serial, id->sn, sizeof(id->sn));
-	memcpy(ctrl->model, id->mn, sizeof(id->mn));
-	memcpy(ctrl->firmware_rev, id->fr, sizeof(id->fr));
 	if (id->mdts)
 		max_hw_sectors = 1 << (id->mdts + page_shift - 9);
 	else
@@ -1932,33 +2333,12 @@ EXPORT_SYMBOL_GPL(nvme_init_identify);
 
 static int nvme_dev_open(struct inode *inode, struct file *file)
 {
-	struct nvme_ctrl *ctrl;
-	int instance = iminor(inode);
-	int ret = -ENODEV;
-
-	spin_lock(&dev_list_lock);
-	list_for_each_entry(ctrl, &nvme_ctrl_list, node) {
-		if (ctrl->instance != instance)
-			continue;
-
-		if (!ctrl->admin_q) {
-			ret = -EWOULDBLOCK;
-			break;
-		}
-		if (!kref_get_unless_zero(&ctrl->kref))
-			break;
-		file->private_data = ctrl;
-		ret = 0;
-		break;
-	}
-	spin_unlock(&dev_list_lock);
-
-	return ret;
-}
+	struct nvme_ctrl *ctrl =
+		container_of(inode->i_cdev, struct nvme_ctrl, cdev);
 
-static int nvme_dev_release(struct inode *inode, struct file *file)
-{
-	nvme_put_ctrl(file->private_data);
+	if (ctrl->state != NVME_CTRL_LIVE)
+		return -EWOULDBLOCK;
+	file->private_data = ctrl;
 	return 0;
 }
 
@@ -2022,7 +2402,6 @@ static long nvme_dev_ioctl(struct file *file, unsigned int cmd,
 static const struct file_operations nvme_dev_fops = {
 	.owner		= THIS_MODULE,
 	.open		= nvme_dev_open,
-	.release	= nvme_dev_release,
 	.unlocked_ioctl	= nvme_dev_ioctl,
 	.compat_ioctl	= nvme_dev_ioctl,
 };
@@ -2052,77 +2431,86 @@ static ssize_t nvme_sysfs_rescan(struct device *dev,
 }
 static DEVICE_ATTR(rescan_controller, S_IWUSR, NULL, nvme_sysfs_rescan);
 
+static inline struct nvme_ns_head *dev_to_ns_head(struct device *dev)
+{
+	struct gendisk *disk = dev_to_disk(dev);
+
+	if (disk->fops == &nvme_fops)
+		return nvme_get_ns_from_dev(dev)->head;
+	else
+		return disk->private_data;
+}
+
 static ssize_t wwid_show(struct device *dev, struct device_attribute *attr,
-								char *buf)
+		char *buf)
 {
-	struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
-	struct nvme_ctrl *ctrl = ns->ctrl;
-	int serial_len = sizeof(ctrl->serial);
-	int model_len = sizeof(ctrl->model);
+	struct nvme_ns_head *head = dev_to_ns_head(dev);
+	struct nvme_ns_ids *ids = &head->ids;
+	struct nvme_subsystem *subsys = head->subsys;
+	int serial_len = sizeof(subsys->serial);
+	int model_len = sizeof(subsys->model);
 
-	if (!uuid_is_null(&ns->uuid))
-		return sprintf(buf, "uuid.%pU\n", &ns->uuid);
+	if (!uuid_is_null(&ids->uuid))
+		return sprintf(buf, "uuid.%pU\n", &ids->uuid);
 
-	if (memchr_inv(ns->nguid, 0, sizeof(ns->nguid)))
-		return sprintf(buf, "eui.%16phN\n", ns->nguid);
+	if (memchr_inv(ids->nguid, 0, sizeof(ids->nguid)))
+		return sprintf(buf, "eui.%16phN\n", ids->nguid);
 
-	if (memchr_inv(ns->eui, 0, sizeof(ns->eui)))
-		return sprintf(buf, "eui.%8phN\n", ns->eui);
+	if (memchr_inv(ids->eui64, 0, sizeof(ids->eui64)))
+		return sprintf(buf, "eui.%8phN\n", ids->eui64);
 
-	while (serial_len > 0 && (ctrl->serial[serial_len - 1] == ' ' ||
-				  ctrl->serial[serial_len - 1] == '\0'))
+	while (serial_len > 0 && (subsys->serial[serial_len - 1] == ' ' ||
+				  subsys->serial[serial_len - 1] == '\0'))
 		serial_len--;
-	while (model_len > 0 && (ctrl->model[model_len - 1] == ' ' ||
-				 ctrl->model[model_len - 1] == '\0'))
+	while (model_len > 0 && (subsys->model[model_len - 1] == ' ' ||
+				 subsys->model[model_len - 1] == '\0'))
 		model_len--;
 
-	return sprintf(buf, "nvme.%04x-%*phN-%*phN-%08x\n", ctrl->vid,
-		serial_len, ctrl->serial, model_len, ctrl->model, ns->ns_id);
+	return sprintf(buf, "nvme.%04x-%*phN-%*phN-%08x\n", subsys->vendor_id,
+		serial_len, subsys->serial, model_len, subsys->model,
+		head->ns_id);
 }
 static DEVICE_ATTR(wwid, S_IRUGO, wwid_show, NULL);
 
 static ssize_t nguid_show(struct device *dev, struct device_attribute *attr,
-			  char *buf)
+		char *buf)
 {
-	struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
-	return sprintf(buf, "%pU\n", ns->nguid);
+	return sprintf(buf, "%pU\n", dev_to_ns_head(dev)->ids.nguid);
 }
 static DEVICE_ATTR(nguid, S_IRUGO, nguid_show, NULL);
 
 static ssize_t uuid_show(struct device *dev, struct device_attribute *attr,
-								char *buf)
+		char *buf)
 {
-	struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
+	struct nvme_ns_ids *ids = &dev_to_ns_head(dev)->ids;
 
 	/* For backward compatibility expose the NGUID to userspace if
 	 * we have no UUID set
 	 */
-	if (uuid_is_null(&ns->uuid)) {
+	if (uuid_is_null(&ids->uuid)) {
 		printk_ratelimited(KERN_WARNING
 				   "No UUID available providing old NGUID\n");
-		return sprintf(buf, "%pU\n", ns->nguid);
+		return sprintf(buf, "%pU\n", ids->nguid);
 	}
-	return sprintf(buf, "%pU\n", &ns->uuid);
+	return sprintf(buf, "%pU\n", &ids->uuid);
 }
 static DEVICE_ATTR(uuid, S_IRUGO, uuid_show, NULL);
 
 static ssize_t eui_show(struct device *dev, struct device_attribute *attr,
-								char *buf)
+		char *buf)
 {
-	struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
-	return sprintf(buf, "%8phd\n", ns->eui);
+	return sprintf(buf, "%8ph\n", dev_to_ns_head(dev)->ids.eui64);
 }
 static DEVICE_ATTR(eui, S_IRUGO, eui_show, NULL);
 
 static ssize_t nsid_show(struct device *dev, struct device_attribute *attr,
-								char *buf)
+		char *buf)
 {
-	struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
-	return sprintf(buf, "%d\n", ns->ns_id);
+	return sprintf(buf, "%d\n", dev_to_ns_head(dev)->ns_id);
 }
 static DEVICE_ATTR(nsid, S_IRUGO, nsid_show, NULL);
 
-static struct attribute *nvme_ns_attrs[] = {
+static struct attribute *nvme_ns_id_attrs[] = {
 	&dev_attr_wwid.attr,
 	&dev_attr_uuid.attr,
 	&dev_attr_nguid.attr,
@@ -2131,31 +2519,31 @@ static struct attribute *nvme_ns_attrs[] = {
 	NULL,
 };
 
-static umode_t nvme_ns_attrs_are_visible(struct kobject *kobj,
+static umode_t nvme_ns_id_attrs_are_visible(struct kobject *kobj,
 		struct attribute *a, int n)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
-	struct nvme_ns *ns = nvme_get_ns_from_dev(dev);
+	struct nvme_ns_ids *ids = &dev_to_ns_head(dev)->ids;
 
 	if (a == &dev_attr_uuid.attr) {
-		if (uuid_is_null(&ns->uuid) ||
-		    !memchr_inv(ns->nguid, 0, sizeof(ns->nguid)))
+		if (uuid_is_null(&ids->uuid) &&
+		    !memchr_inv(ids->nguid, 0, sizeof(ids->nguid)))
 			return 0;
 	}
 	if (a == &dev_attr_nguid.attr) {
-		if (!memchr_inv(ns->nguid, 0, sizeof(ns->nguid)))
+		if (!memchr_inv(ids->nguid, 0, sizeof(ids->nguid)))
 			return 0;
 	}
 	if (a == &dev_attr_eui.attr) {
-		if (!memchr_inv(ns->eui, 0, sizeof(ns->eui)))
+		if (!memchr_inv(ids->eui64, 0, sizeof(ids->eui64)))
 			return 0;
 	}
 	return a->mode;
 }
 
-static const struct attribute_group nvme_ns_attr_group = {
-	.attrs		= nvme_ns_attrs,
-	.is_visible	= nvme_ns_attrs_are_visible,
+const struct attribute_group nvme_ns_id_attr_group = {
+	.attrs		= nvme_ns_id_attrs,
+	.is_visible	= nvme_ns_id_attrs_are_visible,
 };
 
 #define nvme_show_str_function(field)						\
@@ -2163,10 +2551,15 @@ static ssize_t  field##_show(struct device *dev,				\
 			    struct device_attribute *attr, char *buf)		\
 {										\
         struct nvme_ctrl *ctrl = dev_get_drvdata(dev);				\
-        return sprintf(buf, "%.*s\n", (int)sizeof(ctrl->field), ctrl->field);	\
+        return sprintf(buf, "%.*s\n",						\
+		(int)sizeof(ctrl->subsys->field), ctrl->subsys->field);		\
 }										\
 static DEVICE_ATTR(field, S_IRUGO, field##_show, NULL);
 
+nvme_show_str_function(model);
+nvme_show_str_function(serial);
+nvme_show_str_function(firmware_rev);
+
 #define nvme_show_int_function(field)						\
 static ssize_t  field##_show(struct device *dev,				\
 			    struct device_attribute *attr, char *buf)		\
@@ -2176,9 +2569,6 @@ static ssize_t  field##_show(struct device *dev,				\
 }										\
 static DEVICE_ATTR(field, S_IRUGO, field##_show, NULL);
 
-nvme_show_str_function(model);
-nvme_show_str_function(serial);
-nvme_show_str_function(firmware_rev);
 nvme_show_int_function(cntlid);
 
 static ssize_t nvme_sysfs_delete(struct device *dev,
@@ -2188,7 +2578,7 @@ static ssize_t nvme_sysfs_delete(struct device *dev,
 	struct nvme_ctrl *ctrl = dev_get_drvdata(dev);
 
 	if (device_remove_file_self(dev, attr))
-		ctrl->ops->delete_ctrl(ctrl);
+		nvme_delete_ctrl_sync(ctrl);
 	return count;
 }
 static DEVICE_ATTR(delete_controller, S_IWUSR, NULL, nvme_sysfs_delete);
@@ -2232,7 +2622,7 @@ static ssize_t nvme_sysfs_show_subsysnqn(struct device *dev,
 {
 	struct nvme_ctrl *ctrl = dev_get_drvdata(dev);
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", ctrl->subnqn);
+	return snprintf(buf, PAGE_SIZE, "%s\n", ctrl->subsys->subnqn);
 }
 static DEVICE_ATTR(subsysnqn, S_IRUGO, nvme_sysfs_show_subsysnqn, NULL);
 
@@ -2285,12 +2675,128 @@ static const struct attribute_group *nvme_dev_attr_groups[] = {
 	NULL,
 };
 
+static struct nvme_ns_head *__nvme_find_ns_head(struct nvme_subsystem *subsys,
+		unsigned nsid)
+{
+	struct nvme_ns_head *h;
+
+	lockdep_assert_held(&subsys->lock);
+
+	list_for_each_entry(h, &subsys->nsheads, entry) {
+		if (h->ns_id == nsid && kref_get_unless_zero(&h->ref))
+			return h;
+	}
+
+	return NULL;
+}
+
+static int __nvme_check_ids(struct nvme_subsystem *subsys,
+		struct nvme_ns_head *new)
+{
+	struct nvme_ns_head *h;
+
+	lockdep_assert_held(&subsys->lock);
+
+	list_for_each_entry(h, &subsys->nsheads, entry) {
+		if (nvme_ns_ids_valid(&new->ids) &&
+		    nvme_ns_ids_equal(&new->ids, &h->ids))
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct nvme_ns_head *nvme_alloc_ns_head(struct nvme_ctrl *ctrl,
+		unsigned nsid, struct nvme_id_ns *id)
+{
+	struct nvme_ns_head *head;
+	int ret = -ENOMEM;
+
+	head = kzalloc(sizeof(*head), GFP_KERNEL);
+	if (!head)
+		goto out;
+	ret = ida_simple_get(&ctrl->subsys->ns_ida, 1, 0, GFP_KERNEL);
+	if (ret < 0)
+		goto out_free_head;
+	head->instance = ret;
+	INIT_LIST_HEAD(&head->list);
+	init_srcu_struct(&head->srcu);
+	head->subsys = ctrl->subsys;
+	head->ns_id = nsid;
+	kref_init(&head->ref);
+
+	nvme_report_ns_ids(ctrl, nsid, id, &head->ids);
+
+	ret = __nvme_check_ids(ctrl->subsys, head);
+	if (ret) {
+		dev_err(ctrl->device,
+			"duplicate IDs for nsid %d\n", nsid);
+		goto out_cleanup_srcu;
+	}
+
+	ret = nvme_mpath_alloc_disk(ctrl, head);
+	if (ret)
+		goto out_cleanup_srcu;
+
+	list_add_tail(&head->entry, &ctrl->subsys->nsheads);
+	return head;
+out_cleanup_srcu:
+	cleanup_srcu_struct(&head->srcu);
+	ida_simple_remove(&ctrl->subsys->ns_ida, head->instance);
+out_free_head:
+	kfree(head);
+out:
+	return ERR_PTR(ret);
+}
+
+static int nvme_init_ns_head(struct nvme_ns *ns, unsigned nsid,
+		struct nvme_id_ns *id, bool *new)
+{
+	struct nvme_ctrl *ctrl = ns->ctrl;
+	bool is_shared = id->nmic & (1 << 0);
+	struct nvme_ns_head *head = NULL;
+	int ret = 0;
+
+	mutex_lock(&ctrl->subsys->lock);
+	if (is_shared)
+		head = __nvme_find_ns_head(ctrl->subsys, nsid);
+	if (!head) {
+		head = nvme_alloc_ns_head(ctrl, nsid, id);
+		if (IS_ERR(head)) {
+			ret = PTR_ERR(head);
+			goto out_unlock;
+		}
+
+		*new = true;
+	} else {
+		struct nvme_ns_ids ids;
+
+		nvme_report_ns_ids(ctrl, nsid, id, &ids);
+		if (!nvme_ns_ids_equal(&head->ids, &ids)) {
+			dev_err(ctrl->device,
+				"IDs don't match for shared namespace %d\n",
+					nsid);
+			ret = -EINVAL;
+			goto out_unlock;
+		}
+
+		*new = false;
+	}
+
+	list_add_tail(&ns->siblings, &head->list);
+	ns->head = head;
+
+out_unlock:
+	mutex_unlock(&ctrl->subsys->lock);
+	return ret;
+}
+
 static int ns_cmp(void *priv, struct list_head *a, struct list_head *b)
 {
 	struct nvme_ns *nsa = container_of(a, struct nvme_ns, list);
 	struct nvme_ns *nsb = container_of(b, struct nvme_ns, list);
 
-	return nsa->ns_id - nsb->ns_id;
+	return nsa->head->ns_id - nsb->head->ns_id;
 }
 
 static struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid)
@@ -2299,12 +2805,13 @@ static struct nvme_ns *nvme_find_get_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 
 	mutex_lock(&ctrl->namespaces_mutex);
 	list_for_each_entry(ns, &ctrl->namespaces, list) {
-		if (ns->ns_id == nsid) {
-			kref_get(&ns->kref);
+		if (ns->head->ns_id == nsid) {
+			if (!kref_get_unless_zero(&ns->kref))
+				continue;
 			ret = ns;
 			break;
 		}
-		if (ns->ns_id > nsid)
+		if (ns->head->ns_id > nsid)
 			break;
 	}
 	mutex_unlock(&ctrl->namespaces_mutex);
@@ -2319,7 +2826,7 @@ static int nvme_setup_streams_ns(struct nvme_ctrl *ctrl, struct nvme_ns *ns)
 	if (!ctrl->nr_streams)
 		return 0;
 
-	ret = nvme_get_stream_params(ctrl, &s, ns->ns_id);
+	ret = nvme_get_stream_params(ctrl, &s, ns->head->ns_id);
 	if (ret)
 		return ret;
 
@@ -2343,33 +2850,27 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 	struct gendisk *disk;
 	struct nvme_id_ns *id;
 	char disk_name[DISK_NAME_LEN];
-	int node = dev_to_node(ctrl->dev);
+	int node = dev_to_node(ctrl->dev), flags = GENHD_FL_EXT_DEVT;
+	bool new = true;
 
 	ns = kzalloc_node(sizeof(*ns), GFP_KERNEL, node);
 	if (!ns)
 		return;
 
-	ns->instance = ida_simple_get(&ctrl->ns_ida, 1, 0, GFP_KERNEL);
-	if (ns->instance < 0)
-		goto out_free_ns;
-
 	ns->queue = blk_mq_init_queue(ctrl->tagset);
 	if (IS_ERR(ns->queue))
-		goto out_release_instance;
+		goto out_free_ns;
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, ns->queue);
 	ns->queue->queuedata = ns;
 	ns->ctrl = ctrl;
 
 	kref_init(&ns->kref);
-	ns->ns_id = nsid;
 	ns->lba_shift = 9; /* set to a default value for 512 until disk is validated */
 
 	blk_queue_logical_block_size(ns->queue, 1 << ns->lba_shift);
 	nvme_set_queue_limits(ctrl, ns->queue);
 	nvme_setup_streams_ns(ctrl, ns);
 
-	sprintf(disk_name, "nvme%dn%d", ctrl->instance, ns->instance);
-
 	id = nvme_identify_ns(ctrl, nsid);
 	if (!id)
 		goto out_free_queue;
@@ -2377,23 +2878,49 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 	if (id->ncap == 0)
 		goto out_free_id;
 
-	nvme_report_ns_ids(ctrl, ns->ns_id, id, ns->eui, ns->nguid, &ns->uuid);
+	if (nvme_init_ns_head(ns, nsid, id, &new))
+		goto out_free_id;
+	
+#ifdef CONFIG_NVME_MULTIPATH
+	/*
+	 * If multipathing is enabled we need to always use the subsystem
+	 * instance number for numbering our devices to avoid conflicts
+	 * between subsystems that have multiple controllers and thus use
+	 * the multipath-aware subsystem node and those that have a single
+	 * controller and use the controller node directly.
+	 */
+	if (ns->head->disk) {
+		sprintf(disk_name, "nvme%dc%dn%d", ctrl->subsys->instance,
+				ctrl->cntlid, ns->head->instance);
+		flags = GENHD_FL_HIDDEN;
+	} else {
+		sprintf(disk_name, "nvme%dn%d", ctrl->subsys->instance,
+				ns->head->instance);
+	}
+#else
+	/*
+	 * But without the multipath code enabled, multiple controller per
+	 * subsystems are visible as devices and thus we cannot use the
+	 * subsystem instance.
+	 */
+	sprintf(disk_name, "nvme%dn%d", ctrl->instance, ns->head->instance);
+#endif
 
 	if ((ctrl->quirks & NVME_QUIRK_LIGHTNVM) && id->vs[0] == 0x1) {
 		if (nvme_nvm_register(ns, disk_name, node)) {
 			dev_warn(ctrl->device, "LightNVM init failure\n");
-			goto out_free_id;
+			goto out_unlink_ns;
 		}
 	}
 
 	disk = alloc_disk_node(0, node);
 	if (!disk)
-		goto out_free_id;
+		goto out_unlink_ns;
 
 	disk->fops = &nvme_fops;
 	disk->private_data = ns;
 	disk->queue = ns->queue;
-	disk->flags = GENHD_FL_EXT_DEVT;
+	disk->flags = flags;
 	memcpy(disk->disk_name, disk_name, DISK_NAME_LEN);
 	ns->disk = disk;
 
@@ -2403,49 +2930,65 @@ static void nvme_alloc_ns(struct nvme_ctrl *ctrl, unsigned nsid)
 	list_add_tail(&ns->list, &ctrl->namespaces);
 	mutex_unlock(&ctrl->namespaces_mutex);
 
-	kref_get(&ctrl->kref);
+	nvme_get_ctrl(ctrl);
 
 	kfree(id);
 
 	device_add_disk(ctrl->device, ns->disk);
 	if (sysfs_create_group(&disk_to_dev(ns->disk)->kobj,
-					&nvme_ns_attr_group))
+					&nvme_ns_id_attr_group))
 		pr_warn("%s: failed to create sysfs group for identification\n",
 			ns->disk->disk_name);
 	if (ns->ndev && nvme_nvm_register_sysfs(ns))
 		pr_warn("%s: failed to register lightnvm sysfs group for identification\n",
 			ns->disk->disk_name);
+
+	if (new)
+		nvme_mpath_add_disk(ns->head);
+	nvme_mpath_add_disk_links(ns);
 	return;
+ out_unlink_ns:
+	mutex_lock(&ctrl->subsys->lock);
+	list_del_rcu(&ns->siblings);
+	mutex_unlock(&ctrl->subsys->lock);
  out_free_id:
 	kfree(id);
  out_free_queue:
 	blk_cleanup_queue(ns->queue);
- out_release_instance:
-	ida_simple_remove(&ctrl->ns_ida, ns->instance);
  out_free_ns:
 	kfree(ns);
 }
 
 static void nvme_ns_remove(struct nvme_ns *ns)
 {
+	struct nvme_ns_head *head = ns->head;
+
 	if (test_and_set_bit(NVME_NS_REMOVING, &ns->flags))
 		return;
 
 	if (ns->disk && ns->disk->flags & GENHD_FL_UP) {
 		if (blk_get_integrity(ns->disk))
 			blk_integrity_unregister(ns->disk);
+		nvme_mpath_remove_disk_links(ns);
 		sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
-					&nvme_ns_attr_group);
+					&nvme_ns_id_attr_group);
 		if (ns->ndev)
 			nvme_nvm_unregister_sysfs(ns);
 		del_gendisk(ns->disk);
 		blk_cleanup_queue(ns->queue);
 	}
 
+	mutex_lock(&ns->ctrl->subsys->lock);
+	nvme_mpath_clear_current_path(ns);
+	if (head)
+		list_del_rcu(&ns->siblings);
+	mutex_unlock(&ns->ctrl->subsys->lock);
+
 	mutex_lock(&ns->ctrl->namespaces_mutex);
 	list_del_init(&ns->list);
 	mutex_unlock(&ns->ctrl->namespaces_mutex);
 
+	synchronize_srcu(&head->srcu);
 	nvme_put_ns(ns);
 }
 
@@ -2468,7 +3011,7 @@ static void nvme_remove_invalid_namespaces(struct nvme_ctrl *ctrl,
 	struct nvme_ns *ns, *next;
 
 	list_for_each_entry_safe(ns, next, &ctrl->namespaces, list) {
-		if (ns->ns_id > nsid)
+		if (ns->head->ns_id > nsid)
 			nvme_ns_remove(ns);
 	}
 }
@@ -2584,20 +3127,29 @@ void nvme_remove_namespaces(struct nvme_ctrl *ctrl)
 }
 EXPORT_SYMBOL_GPL(nvme_remove_namespaces);
 
+static void nvme_aen_uevent(struct nvme_ctrl *ctrl)
+{
+	char *envp[2] = { NULL, NULL };
+	u32 aen_result = ctrl->aen_result;
+
+	ctrl->aen_result = 0;
+	if (!aen_result)
+		return;
+
+	envp[0] = kasprintf(GFP_KERNEL, "NVME_AEN=%#08x", aen_result);
+	if (!envp[0])
+		return;
+	kobject_uevent_env(&ctrl->device->kobj, KOBJ_CHANGE, envp);
+	kfree(envp[0]);
+}
+
 static void nvme_async_event_work(struct work_struct *work)
 {
 	struct nvme_ctrl *ctrl =
 		container_of(work, struct nvme_ctrl, async_event_work);
 
-	spin_lock_irq(&ctrl->lock);
-	while (ctrl->event_limit > 0) {
-		int aer_idx = --ctrl->event_limit;
-
-		spin_unlock_irq(&ctrl->lock);
-		ctrl->ops->submit_async_event(ctrl, aer_idx);
-		spin_lock_irq(&ctrl->lock);
-	}
-	spin_unlock_irq(&ctrl->lock);
+	nvme_aen_uevent(ctrl);
+	ctrl->ops->submit_async_event(ctrl);
 }
 
 static bool nvme_ctrl_pp_status(struct nvme_ctrl *ctrl)
@@ -2616,18 +3168,13 @@ static bool nvme_ctrl_pp_status(struct nvme_ctrl *ctrl)
 
 static void nvme_get_fw_slot_info(struct nvme_ctrl *ctrl)
 {
-	struct nvme_command c = { };
 	struct nvme_fw_slot_info_log *log;
 
 	log = kmalloc(sizeof(*log), GFP_KERNEL);
 	if (!log)
 		return;
 
-	c.common.opcode = nvme_admin_get_log_page;
-	c.common.nsid = cpu_to_le32(NVME_NSID_ALL);
-	c.common.cdw10[0] = nvme_get_log_dw10(NVME_LOG_FW_SLOT, sizeof(*log));
-
-	if (!nvme_submit_sync_cmd(ctrl->admin_q, &c, log, sizeof(*log)))
+	if (nvme_get_log(ctrl, NVME_LOG_FW_SLOT, log, sizeof(*log)))
 		dev_warn(ctrl->device,
 				"Get FW SLOT INFO log error\n");
 	kfree(log);
@@ -2661,7 +3208,7 @@ static void nvme_fw_act_work(struct work_struct *work)
 		return;
 
 	nvme_start_queues(ctrl);
-	/* read FW slot informationi to clear the AER*/
+	/* read FW slot information to clear the AER */
 	nvme_get_fw_slot_info(ctrl);
 }
 
@@ -2669,72 +3216,35 @@ void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
 		union nvme_result *res)
 {
 	u32 result = le32_to_cpu(res->u32);
-	bool done = true;
 
-	switch (le16_to_cpu(status) >> 1) {
-	case NVME_SC_SUCCESS:
-		done = false;
-		/*FALLTHRU*/
-	case NVME_SC_ABORT_REQ:
-		++ctrl->event_limit;
-		queue_work(nvme_wq, &ctrl->async_event_work);
+	if (le16_to_cpu(status) >> 1 != NVME_SC_SUCCESS)
+		return;
+
+	switch (result & 0x7) {
+	case NVME_AER_ERROR:
+	case NVME_AER_SMART:
+	case NVME_AER_CSS:
+	case NVME_AER_VS:
+		ctrl->aen_result = result;
 		break;
 	default:
 		break;
 	}
 
-	if (done)
-		return;
-
 	switch (result & 0xff07) {
 	case NVME_AER_NOTICE_NS_CHANGED:
 		dev_info(ctrl->device, "rescanning\n");
 		nvme_queue_scan(ctrl);
 		break;
 	case NVME_AER_NOTICE_FW_ACT_STARTING:
-		schedule_work(&ctrl->fw_act_work);
+		queue_work(nvme_wq, &ctrl->fw_act_work);
 		break;
 	default:
 		dev_warn(ctrl->device, "async event result %08x\n", result);
 	}
-}
-EXPORT_SYMBOL_GPL(nvme_complete_async_event);
-
-void nvme_queue_async_events(struct nvme_ctrl *ctrl)
-{
-	ctrl->event_limit = NVME_NR_AERS;
 	queue_work(nvme_wq, &ctrl->async_event_work);
 }
-EXPORT_SYMBOL_GPL(nvme_queue_async_events);
-
-static DEFINE_IDA(nvme_instance_ida);
-
-static int nvme_set_instance(struct nvme_ctrl *ctrl)
-{
-	int instance, error;
-
-	do {
-		if (!ida_pre_get(&nvme_instance_ida, GFP_KERNEL))
-			return -ENODEV;
-
-		spin_lock(&dev_list_lock);
-		error = ida_get_new(&nvme_instance_ida, &instance);
-		spin_unlock(&dev_list_lock);
-	} while (error == -EAGAIN);
-
-	if (error)
-		return -ENODEV;
-
-	ctrl->instance = instance;
-	return 0;
-}
-
-static void nvme_release_instance(struct nvme_ctrl *ctrl)
-{
-	spin_lock(&dev_list_lock);
-	ida_remove(&nvme_instance_ida, ctrl->instance);
-	spin_unlock(&dev_list_lock);
-}
+EXPORT_SYMBOL_GPL(nvme_complete_async_event);
 
 void nvme_stop_ctrl(struct nvme_ctrl *ctrl)
 {
@@ -2752,7 +3262,7 @@ void nvme_start_ctrl(struct nvme_ctrl *ctrl)
 
 	if (ctrl->queue_count > 1) {
 		nvme_queue_scan(ctrl);
-		nvme_queue_async_events(ctrl);
+		queue_work(nvme_wq, &ctrl->async_event_work);
 		nvme_start_queues(ctrl);
 	}
 }
@@ -2760,30 +3270,31 @@ EXPORT_SYMBOL_GPL(nvme_start_ctrl);
 
 void nvme_uninit_ctrl(struct nvme_ctrl *ctrl)
 {
-	device_destroy(nvme_class, MKDEV(nvme_char_major, ctrl->instance));
-
-	spin_lock(&dev_list_lock);
-	list_del(&ctrl->node);
-	spin_unlock(&dev_list_lock);
+	cdev_device_del(&ctrl->cdev, ctrl->device);
 }
 EXPORT_SYMBOL_GPL(nvme_uninit_ctrl);
 
-static void nvme_free_ctrl(struct kref *kref)
+static void nvme_free_ctrl(struct device *dev)
 {
-	struct nvme_ctrl *ctrl = container_of(kref, struct nvme_ctrl, kref);
+	struct nvme_ctrl *ctrl =
+		container_of(dev, struct nvme_ctrl, ctrl_device);
+	struct nvme_subsystem *subsys = ctrl->subsys;
 
-	put_device(ctrl->device);
-	nvme_release_instance(ctrl);
-	ida_destroy(&ctrl->ns_ida);
+	ida_simple_remove(&nvme_instance_ida, ctrl->instance);
+	kfree(ctrl->effects);
+
+	if (subsys) {
+		mutex_lock(&subsys->lock);
+		list_del(&ctrl->subsys_entry);
+		mutex_unlock(&subsys->lock);
+		sysfs_remove_link(&subsys->dev.kobj, dev_name(ctrl->device));
+	}
 
 	ctrl->ops->free_ctrl(ctrl);
-}
 
-void nvme_put_ctrl(struct nvme_ctrl *ctrl)
-{
-	kref_put(&ctrl->kref, nvme_free_ctrl);
+	if (subsys)
+		nvme_put_subsystem(subsys);
 }
-EXPORT_SYMBOL_GPL(nvme_put_ctrl);
 
 /*
  * Initialize a NVMe controller structures.  This needs to be called during
@@ -2799,32 +3310,36 @@ int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev,
 	spin_lock_init(&ctrl->lock);
 	INIT_LIST_HEAD(&ctrl->namespaces);
 	mutex_init(&ctrl->namespaces_mutex);
-	kref_init(&ctrl->kref);
 	ctrl->dev = dev;
 	ctrl->ops = ops;
 	ctrl->quirks = quirks;
 	INIT_WORK(&ctrl->scan_work, nvme_scan_work);
 	INIT_WORK(&ctrl->async_event_work, nvme_async_event_work);
 	INIT_WORK(&ctrl->fw_act_work, nvme_fw_act_work);
+	INIT_WORK(&ctrl->delete_work, nvme_delete_ctrl_work);
 
-	ret = nvme_set_instance(ctrl);
-	if (ret)
+	ret = ida_simple_get(&nvme_instance_ida, 0, 0, GFP_KERNEL);
+	if (ret < 0)
 		goto out;
-
-	ctrl->device = device_create_with_groups(nvme_class, ctrl->dev,
-				MKDEV(nvme_char_major, ctrl->instance),
-				ctrl, nvme_dev_attr_groups,
-				"nvme%d", ctrl->instance);
-	if (IS_ERR(ctrl->device)) {
-		ret = PTR_ERR(ctrl->device);
+	ctrl->instance = ret;
+
+	device_initialize(&ctrl->ctrl_device);
+	ctrl->device = &ctrl->ctrl_device;
+	ctrl->device->devt = MKDEV(MAJOR(nvme_chr_devt), ctrl->instance);
+	ctrl->device->class = nvme_class;
+	ctrl->device->parent = ctrl->dev;
+	ctrl->device->groups = nvme_dev_attr_groups;
+	ctrl->device->release = nvme_free_ctrl;
+	dev_set_drvdata(ctrl->device, ctrl);
+	ret = dev_set_name(ctrl->device, "nvme%d", ctrl->instance);
+	if (ret)
 		goto out_release_instance;
-	}
-	get_device(ctrl->device);
-	ida_init(&ctrl->ns_ida);
 
-	spin_lock(&dev_list_lock);
-	list_add_tail(&ctrl->node, &nvme_ctrl_list);
-	spin_unlock(&dev_list_lock);
+	cdev_init(&ctrl->cdev, &nvme_dev_fops);
+	ctrl->cdev.owner = ops->module;
+	ret = cdev_device_add(&ctrl->cdev, ctrl->device);
+	if (ret)
+		goto out_free_name;
 
 	/*
 	 * Initialize latency tolerance controls.  The sysfs files won't
@@ -2835,8 +3350,10 @@ int nvme_init_ctrl(struct nvme_ctrl *ctrl, struct device *dev,
 		min(default_ps_max_latency_us, (unsigned long)S32_MAX));
 
 	return 0;
+out_free_name:
+	kfree_const(dev->kobj.name);
 out_release_instance:
-	nvme_release_instance(ctrl);
+	ida_simple_remove(&nvme_instance_ida, ctrl->instance);
 out:
 	return ret;
 }
@@ -2945,6 +3462,16 @@ void nvme_start_queues(struct nvme_ctrl *ctrl)
 }
 EXPORT_SYMBOL_GPL(nvme_start_queues);
 
+int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set)
+{
+	if (!ctrl->ops->reinit_request)
+		return 0;
+
+	return blk_mq_tagset_iter(set, set->driver_data,
+			ctrl->ops->reinit_request);
+}
+EXPORT_SYMBOL_GPL(nvme_reinit_tagset);
+
 int __init nvme_core_init(void)
 {
 	int result;
@@ -2954,12 +3481,9 @@ int __init nvme_core_init(void)
 	if (!nvme_wq)
 		return -ENOMEM;
 
-	result = __register_chrdev(nvme_char_major, 0, NVME_MINORS, "nvme",
-							&nvme_dev_fops);
+	result = alloc_chrdev_region(&nvme_chr_devt, 0, NVME_MINORS, "nvme");
 	if (result < 0)
 		goto destroy_wq;
-	else if (result > 0)
-		nvme_char_major = result;
 
 	nvme_class = class_create(THIS_MODULE, "nvme");
 	if (IS_ERR(nvme_class)) {
@@ -2967,10 +3491,17 @@ int __init nvme_core_init(void)
 		goto unregister_chrdev;
 	}
 
+	nvme_subsys_class = class_create(THIS_MODULE, "nvme-subsystem");
+	if (IS_ERR(nvme_subsys_class)) {
+		result = PTR_ERR(nvme_subsys_class);
+		goto destroy_class;
+	}
 	return 0;
 
+destroy_class:
+	class_destroy(nvme_class);
 unregister_chrdev:
-	__unregister_chrdev(nvme_char_major, 0, NVME_MINORS, "nvme");
+	unregister_chrdev_region(nvme_chr_devt, NVME_MINORS);
 destroy_wq:
 	destroy_workqueue(nvme_wq);
 	return result;
@@ -2978,8 +3509,10 @@ destroy_wq:
 
 void nvme_core_exit(void)
 {
+	ida_destroy(&nvme_subsystems_ida);
+	class_destroy(nvme_subsys_class);
 	class_destroy(nvme_class);
-	__unregister_chrdev(nvme_char_major, 0, NVME_MINORS, "nvme");
+	unregister_chrdev_region(nvme_chr_devt, NVME_MINORS);
 	destroy_workqueue(nvme_wq);
 }
 
diff --git a/drivers/nvme/host/fabrics.c b/drivers/nvme/host/fabrics.c
index 47307752dc65..76b4fe6816a0 100644
--- a/drivers/nvme/host/fabrics.c
+++ b/drivers/nvme/host/fabrics.c
@@ -548,6 +548,7 @@ static const match_table_t opt_tokens = {
 	{ NVMF_OPT_HOSTNQN,		"hostnqn=%s"		},
 	{ NVMF_OPT_HOST_TRADDR,		"host_traddr=%s"	},
 	{ NVMF_OPT_HOST_ID,		"hostid=%s"		},
+	{ NVMF_OPT_DUP_CONNECT,		"duplicate_connect"	},
 	{ NVMF_OPT_ERR,			NULL			}
 };
 
@@ -565,6 +566,8 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts,
 	opts->queue_size = NVMF_DEF_QUEUE_SIZE;
 	opts->nr_io_queues = num_online_cpus();
 	opts->reconnect_delay = NVMF_DEF_RECONNECT_DELAY;
+	opts->kato = NVME_DEFAULT_KATO;
+	opts->duplicate_connect = false;
 
 	options = o = kstrdup(buf, GFP_KERNEL);
 	if (!options)
@@ -655,21 +658,22 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts,
 				goto out;
 			}
 
-			if (opts->discovery_nqn) {
-				pr_err("Discovery controllers cannot accept keep_alive_tmo != 0\n");
-				ret = -EINVAL;
-				goto out;
-			}
-
 			if (token < 0) {
 				pr_err("Invalid keep_alive_tmo %d\n", token);
 				ret = -EINVAL;
 				goto out;
-			} else if (token == 0) {
+			} else if (token == 0 && !opts->discovery_nqn) {
 				/* Allowed for debug */
 				pr_warn("keep_alive_tmo 0 won't execute keep alives!!!\n");
 			}
 			opts->kato = token;
+
+			if (opts->discovery_nqn && opts->kato) {
+				pr_err("Discovery controllers cannot accept KATO != 0\n");
+				ret = -EINVAL;
+				goto out;
+			}
+
 			break;
 		case NVMF_OPT_CTRL_LOSS_TMO:
 			if (match_int(args, &token)) {
@@ -740,6 +744,9 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts,
 				goto out;
 			}
 			break;
+		case NVMF_OPT_DUP_CONNECT:
+			opts->duplicate_connect = true;
+			break;
 		default:
 			pr_warn("unknown parameter or missing value '%s' in ctrl creation request\n",
 				p);
@@ -762,8 +769,6 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts,
 	uuid_copy(&opts->host->id, &hostid);
 
 out:
-	if (!opts->discovery_nqn && !opts->kato)
-		opts->kato = NVME_DEFAULT_KATO;
 	kfree(options);
 	return ret;
 }
@@ -823,7 +828,7 @@ EXPORT_SYMBOL_GPL(nvmf_free_options);
 #define NVMF_REQUIRED_OPTS	(NVMF_OPT_TRANSPORT | NVMF_OPT_NQN)
 #define NVMF_ALLOWED_OPTS	(NVMF_OPT_QUEUE_SIZE | NVMF_OPT_NR_IO_QUEUES | \
 				 NVMF_OPT_KATO | NVMF_OPT_HOSTNQN | \
-				 NVMF_OPT_HOST_ID)
+				 NVMF_OPT_HOST_ID | NVMF_OPT_DUP_CONNECT)
 
 static struct nvme_ctrl *
 nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
@@ -841,6 +846,9 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
 	if (ret)
 		goto out_free_opts;
 
+
+	request_module("nvme-%s", opts->transport);
+
 	/*
 	 * Check the generic options first as we need a valid transport for
 	 * the lookup below.  Then clear the generic flags so that transport
@@ -874,12 +882,12 @@ nvmf_create_ctrl(struct device *dev, const char *buf, size_t count)
 		goto out_unlock;
 	}
 
-	if (strcmp(ctrl->subnqn, opts->subsysnqn)) {
+	if (strcmp(ctrl->subsys->subnqn, opts->subsysnqn)) {
 		dev_warn(ctrl->device,
 			"controller returned incorrect NQN: \"%s\".\n",
-			ctrl->subnqn);
+			ctrl->subsys->subnqn);
 		up_read(&nvmf_transports_rwsem);
-		ctrl->ops->delete_ctrl(ctrl);
+		nvme_delete_ctrl_sync(ctrl);
 		return ERR_PTR(-EINVAL);
 	}
 
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index bf33663218cd..42232e731f19 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -57,6 +57,7 @@ enum {
 	NVMF_OPT_HOST_TRADDR	= 1 << 10,
 	NVMF_OPT_CTRL_LOSS_TMO	= 1 << 11,
 	NVMF_OPT_HOST_ID	= 1 << 12,
+	NVMF_OPT_DUP_CONNECT	= 1 << 13,
 };
 
 /**
@@ -96,6 +97,7 @@ struct nvmf_ctrl_options {
 	unsigned int		nr_io_queues;
 	unsigned int		reconnect_delay;
 	bool			discovery_nqn;
+	bool			duplicate_connect;
 	unsigned int		kato;
 	struct nvmf_host	*host;
 	int			max_reconnects;
@@ -131,6 +133,18 @@ struct nvmf_transport_ops {
 					struct nvmf_ctrl_options *opts);
 };
 
+static inline bool
+nvmf_ctlr_matches_baseopts(struct nvme_ctrl *ctrl,
+			struct nvmf_ctrl_options *opts)
+{
+	if (strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) ||
+	    strcmp(opts->host->nqn, ctrl->opts->host->nqn) ||
+	    memcmp(&opts->host->id, &ctrl->opts->host->id, sizeof(uuid_t)))
+		return false;
+
+	return true;
+}
+
 int nvmf_reg_read32(struct nvme_ctrl *ctrl, u32 off, u32 *val);
 int nvmf_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val);
 int nvmf_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val);
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index d2e882c0f496..7ab0be55c7d0 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -30,27 +30,19 @@
 /* *************************** Data Structures/Defines ****************** */
 
 
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_FC_NR_AEN_COMMANDS	1
-#define NVME_FC_AQ_BLKMQ_DEPTH	\
-	(NVME_AQ_DEPTH - NVME_FC_NR_AEN_COMMANDS)
-#define AEN_CMDID_BASE		(NVME_FC_AQ_BLKMQ_DEPTH + 1)
-
 enum nvme_fc_queue_flags {
 	NVME_FC_Q_CONNECTED = (1 << 0),
 };
 
 #define NVMEFC_QUEUE_DELAY	3		/* ms units */
 
+#define NVME_FC_DEFAULT_DEV_LOSS_TMO	60	/* seconds */
+
 struct nvme_fc_queue {
 	struct nvme_fc_ctrl	*ctrl;
 	struct device		*dev;
 	struct blk_mq_hw_ctx	*hctx;
 	void			*lldd_handle;
-	int			queue_size;
 	size_t			cmnd_capsule_len;
 	u32			qnum;
 	u32			rqcnt;
@@ -124,6 +116,7 @@ struct nvme_fc_lport {
 	struct device			*dev;	/* physical device for dma */
 	struct nvme_fc_port_template	*ops;
 	struct kref			ref;
+	atomic_t                        act_rport_cnt;
 } __aligned(sizeof(u64));	/* alignment for other things alloc'd with */
 
 struct nvme_fc_rport {
@@ -136,6 +129,8 @@ struct nvme_fc_rport {
 	struct nvme_fc_lport		*lport;
 	spinlock_t			lock;
 	struct kref			ref;
+	atomic_t                        act_ctrl_cnt;
+	unsigned long			dev_loss_end;
 } __aligned(sizeof(u64));	/* alignment for other things alloc'd with */
 
 enum nvme_fcctrl_flags {
@@ -150,6 +145,7 @@ struct nvme_fc_ctrl {
 	struct nvme_fc_rport	*rport;
 	u32			cnum;
 
+	bool			assoc_active;
 	u64			association_id;
 
 	struct list_head	ctrl_list;	/* rport->ctrl_list */
@@ -157,7 +153,6 @@ struct nvme_fc_ctrl {
 	struct blk_mq_tag_set	admin_tag_set;
 	struct blk_mq_tag_set	tag_set;
 
-	struct work_struct	delete_work;
 	struct delayed_work	connect_work;
 
 	struct kref		ref;
@@ -165,7 +160,7 @@ struct nvme_fc_ctrl {
 	u32			iocnt;
 	wait_queue_head_t	ioabort_wait;
 
-	struct nvme_fc_fcp_op	aen_ops[NVME_FC_NR_AEN_COMMANDS];
+	struct nvme_fc_fcp_op	aen_ops[NVME_NR_AEN_COMMANDS];
 
 	struct nvme_ctrl	ctrl;
 };
@@ -213,10 +208,16 @@ static DEFINE_IDA(nvme_fc_ctrl_cnt);
 
 
 
+/*
+ * These items are short-term. They will eventually be moved into
+ * a generic FC class. See comments in module init.
+ */
+static struct class *fc_class;
+static struct device *fc_udev_device;
+
 
 /* *********************** FC-NVME Port Management ************************ */
 
-static int __nvme_fc_del_ctrl(struct nvme_fc_ctrl *);
 static void __nvme_fc_delete_hw_queue(struct nvme_fc_ctrl *,
 			struct nvme_fc_queue *, unsigned int);
 
@@ -235,9 +236,6 @@ nvme_fc_free_lport(struct kref *ref)
 	list_del(&lport->port_list);
 	spin_unlock_irqrestore(&nvme_fc_lock, flags);
 
-	/* let the LLDD know we've finished tearing it down */
-	lport->ops->localport_delete(&lport->localport);
-
 	ida_simple_remove(&nvme_fc_local_port_cnt, lport->localport.port_num);
 	ida_destroy(&lport->endp_cnt);
 
@@ -260,7 +258,9 @@ nvme_fc_lport_get(struct nvme_fc_lport *lport)
 
 
 static struct nvme_fc_lport *
-nvme_fc_attach_to_unreg_lport(struct nvme_fc_port_info *pinfo)
+nvme_fc_attach_to_unreg_lport(struct nvme_fc_port_info *pinfo,
+			struct nvme_fc_port_template *ops,
+			struct device *dev)
 {
 	struct nvme_fc_lport *lport;
 	unsigned long flags;
@@ -272,6 +272,11 @@ nvme_fc_attach_to_unreg_lport(struct nvme_fc_port_info *pinfo)
 		    lport->localport.port_name != pinfo->port_name)
 			continue;
 
+		if (lport->dev != dev) {
+			lport = ERR_PTR(-EXDEV);
+			goto out_done;
+		}
+
 		if (lport->localport.port_state != FC_OBJSTATE_DELETED) {
 			lport = ERR_PTR(-EEXIST);
 			goto out_done;
@@ -288,6 +293,7 @@ nvme_fc_attach_to_unreg_lport(struct nvme_fc_port_info *pinfo)
 
 		/* resume the lport */
 
+		lport->ops = ops;
 		lport->localport.port_role = pinfo->port_role;
 		lport->localport.port_id = pinfo->port_id;
 		lport->localport.port_state = FC_OBJSTATE_ONLINE;
@@ -348,7 +354,7 @@ nvme_fc_register_localport(struct nvme_fc_port_info *pinfo,
 	 * expired, we can simply re-enable the localport. Remoteports
 	 * and controller reconnections should resume naturally.
 	 */
-	newrec = nvme_fc_attach_to_unreg_lport(pinfo);
+	newrec = nvme_fc_attach_to_unreg_lport(pinfo, template, dev);
 
 	/* found an lport, but something about its state is bad */
 	if (IS_ERR(newrec)) {
@@ -384,6 +390,7 @@ nvme_fc_register_localport(struct nvme_fc_port_info *pinfo,
 	INIT_LIST_HEAD(&newrec->port_list);
 	INIT_LIST_HEAD(&newrec->endp_list);
 	kref_init(&newrec->ref);
+	atomic_set(&newrec->act_rport_cnt, 0);
 	newrec->ops = template;
 	newrec->dev = dev;
 	ida_init(&newrec->endp_cnt);
@@ -446,12 +453,177 @@ nvme_fc_unregister_localport(struct nvme_fc_local_port *portptr)
 
 	spin_unlock_irqrestore(&nvme_fc_lock, flags);
 
+	if (atomic_read(&lport->act_rport_cnt) == 0)
+		lport->ops->localport_delete(&lport->localport);
+
 	nvme_fc_lport_put(lport);
 
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nvme_fc_unregister_localport);
 
+/*
+ * TRADDR strings, per FC-NVME are fixed format:
+ *   "nn-0x<16hexdigits>:pn-0x<16hexdigits>" - 43 characters
+ * udev event will only differ by prefix of what field is
+ * being specified:
+ *    "NVMEFC_HOST_TRADDR=" or "NVMEFC_TRADDR=" - 19 max characters
+ *  19 + 43 + null_fudge = 64 characters
+ */
+#define FCNVME_TRADDR_LENGTH		64
+
+static void
+nvme_fc_signal_discovery_scan(struct nvme_fc_lport *lport,
+		struct nvme_fc_rport *rport)
+{
+	char hostaddr[FCNVME_TRADDR_LENGTH];	/* NVMEFC_HOST_TRADDR=...*/
+	char tgtaddr[FCNVME_TRADDR_LENGTH];	/* NVMEFC_TRADDR=...*/
+	char *envp[4] = { "FC_EVENT=nvmediscovery", hostaddr, tgtaddr, NULL };
+
+	if (!(rport->remoteport.port_role & FC_PORT_ROLE_NVME_DISCOVERY))
+		return;
+
+	snprintf(hostaddr, sizeof(hostaddr),
+		"NVMEFC_HOST_TRADDR=nn-0x%016llx:pn-0x%016llx",
+		lport->localport.node_name, lport->localport.port_name);
+	snprintf(tgtaddr, sizeof(tgtaddr),
+		"NVMEFC_TRADDR=nn-0x%016llx:pn-0x%016llx",
+		rport->remoteport.node_name, rport->remoteport.port_name);
+	kobject_uevent_env(&fc_udev_device->kobj, KOBJ_CHANGE, envp);
+}
+
+static void
+nvme_fc_free_rport(struct kref *ref)
+{
+	struct nvme_fc_rport *rport =
+		container_of(ref, struct nvme_fc_rport, ref);
+	struct nvme_fc_lport *lport =
+			localport_to_lport(rport->remoteport.localport);
+	unsigned long flags;
+
+	WARN_ON(rport->remoteport.port_state != FC_OBJSTATE_DELETED);
+	WARN_ON(!list_empty(&rport->ctrl_list));
+
+	/* remove from lport list */
+	spin_lock_irqsave(&nvme_fc_lock, flags);
+	list_del(&rport->endp_list);
+	spin_unlock_irqrestore(&nvme_fc_lock, flags);
+
+	ida_simple_remove(&lport->endp_cnt, rport->remoteport.port_num);
+
+	kfree(rport);
+
+	nvme_fc_lport_put(lport);
+}
+
+static void
+nvme_fc_rport_put(struct nvme_fc_rport *rport)
+{
+	kref_put(&rport->ref, nvme_fc_free_rport);
+}
+
+static int
+nvme_fc_rport_get(struct nvme_fc_rport *rport)
+{
+	return kref_get_unless_zero(&rport->ref);
+}
+
+static void
+nvme_fc_resume_controller(struct nvme_fc_ctrl *ctrl)
+{
+	switch (ctrl->ctrl.state) {
+	case NVME_CTRL_NEW:
+	case NVME_CTRL_RECONNECTING:
+		/*
+		 * As all reconnects were suppressed, schedule a
+		 * connect.
+		 */
+		dev_info(ctrl->ctrl.device,
+			"NVME-FC{%d}: connectivity re-established. "
+			"Attempting reconnect\n", ctrl->cnum);
+
+		queue_delayed_work(nvme_wq, &ctrl->connect_work, 0);
+		break;
+
+	case NVME_CTRL_RESETTING:
+		/*
+		 * Controller is already in the process of terminating the
+		 * association. No need to do anything further. The reconnect
+		 * step will naturally occur after the reset completes.
+		 */
+		break;
+
+	default:
+		/* no action to take - let it delete */
+		break;
+	}
+}
+
+static struct nvme_fc_rport *
+nvme_fc_attach_to_suspended_rport(struct nvme_fc_lport *lport,
+				struct nvme_fc_port_info *pinfo)
+{
+	struct nvme_fc_rport *rport;
+	struct nvme_fc_ctrl *ctrl;
+	unsigned long flags;
+
+	spin_lock_irqsave(&nvme_fc_lock, flags);
+
+	list_for_each_entry(rport, &lport->endp_list, endp_list) {
+		if (rport->remoteport.node_name != pinfo->node_name ||
+		    rport->remoteport.port_name != pinfo->port_name)
+			continue;
+
+		if (!nvme_fc_rport_get(rport)) {
+			rport = ERR_PTR(-ENOLCK);
+			goto out_done;
+		}
+
+		spin_unlock_irqrestore(&nvme_fc_lock, flags);
+
+		spin_lock_irqsave(&rport->lock, flags);
+
+		/* has it been unregistered */
+		if (rport->remoteport.port_state != FC_OBJSTATE_DELETED) {
+			/* means lldd called us twice */
+			spin_unlock_irqrestore(&rport->lock, flags);
+			nvme_fc_rport_put(rport);
+			return ERR_PTR(-ESTALE);
+		}
+
+		rport->remoteport.port_state = FC_OBJSTATE_ONLINE;
+		rport->dev_loss_end = 0;
+
+		/*
+		 * kick off a reconnect attempt on all associations to the
+		 * remote port. A successful reconnects will resume i/o.
+		 */
+		list_for_each_entry(ctrl, &rport->ctrl_list, ctrl_list)
+			nvme_fc_resume_controller(ctrl);
+
+		spin_unlock_irqrestore(&rport->lock, flags);
+
+		return rport;
+	}
+
+	rport = NULL;
+
+out_done:
+	spin_unlock_irqrestore(&nvme_fc_lock, flags);
+
+	return rport;
+}
+
+static inline void
+__nvme_fc_set_dev_loss_tmo(struct nvme_fc_rport *rport,
+			struct nvme_fc_port_info *pinfo)
+{
+	if (pinfo->dev_loss_tmo)
+		rport->remoteport.dev_loss_tmo = pinfo->dev_loss_tmo;
+	else
+		rport->remoteport.dev_loss_tmo = NVME_FC_DEFAULT_DEV_LOSS_TMO;
+}
+
 /**
  * nvme_fc_register_remoteport - transport entry point called by an
  *                              LLDD to register the existence of a NVME
@@ -478,28 +650,52 @@ nvme_fc_register_remoteport(struct nvme_fc_local_port *localport,
 	unsigned long flags;
 	int ret, idx;
 
+	if (!nvme_fc_lport_get(lport)) {
+		ret = -ESHUTDOWN;
+		goto out_reghost_failed;
+	}
+
+	/*
+	 * look to see if there is already a remoteport that is waiting
+	 * for a reconnect (within dev_loss_tmo) with the same WWN's.
+	 * If so, transition to it and reconnect.
+	 */
+	newrec = nvme_fc_attach_to_suspended_rport(lport, pinfo);
+
+	/* found an rport, but something about its state is bad */
+	if (IS_ERR(newrec)) {
+		ret = PTR_ERR(newrec);
+		goto out_lport_put;
+
+	/* found existing rport, which was resumed */
+	} else if (newrec) {
+		nvme_fc_lport_put(lport);
+		__nvme_fc_set_dev_loss_tmo(newrec, pinfo);
+		nvme_fc_signal_discovery_scan(lport, newrec);
+		*portptr = &newrec->remoteport;
+		return 0;
+	}
+
+	/* nothing found - allocate a new remoteport struct */
+
 	newrec = kmalloc((sizeof(*newrec) + lport->ops->remote_priv_sz),
 			 GFP_KERNEL);
 	if (!newrec) {
 		ret = -ENOMEM;
-		goto out_reghost_failed;
-	}
-
-	if (!nvme_fc_lport_get(lport)) {
-		ret = -ESHUTDOWN;
-		goto out_kfree_rport;
+		goto out_lport_put;
 	}
 
 	idx = ida_simple_get(&lport->endp_cnt, 0, 0, GFP_KERNEL);
 	if (idx < 0) {
 		ret = -ENOSPC;
-		goto out_lport_put;
+		goto out_kfree_rport;
 	}
 
 	INIT_LIST_HEAD(&newrec->endp_list);
 	INIT_LIST_HEAD(&newrec->ctrl_list);
 	INIT_LIST_HEAD(&newrec->ls_req_list);
 	kref_init(&newrec->ref);
+	atomic_set(&newrec->act_ctrl_cnt, 0);
 	spin_lock_init(&newrec->lock);
 	newrec->remoteport.localport = &lport->localport;
 	newrec->dev = lport->dev;
@@ -511,63 +707,27 @@ nvme_fc_register_remoteport(struct nvme_fc_local_port *localport,
 	newrec->remoteport.port_id = pinfo->port_id;
 	newrec->remoteport.port_state = FC_OBJSTATE_ONLINE;
 	newrec->remoteport.port_num = idx;
+	__nvme_fc_set_dev_loss_tmo(newrec, pinfo);
 
 	spin_lock_irqsave(&nvme_fc_lock, flags);
 	list_add_tail(&newrec->endp_list, &lport->endp_list);
 	spin_unlock_irqrestore(&nvme_fc_lock, flags);
 
+	nvme_fc_signal_discovery_scan(lport, newrec);
+
 	*portptr = &newrec->remoteport;
 	return 0;
 
-out_lport_put:
-	nvme_fc_lport_put(lport);
 out_kfree_rport:
 	kfree(newrec);
+out_lport_put:
+	nvme_fc_lport_put(lport);
 out_reghost_failed:
 	*portptr = NULL;
 	return ret;
 }
 EXPORT_SYMBOL_GPL(nvme_fc_register_remoteport);
 
-static void
-nvme_fc_free_rport(struct kref *ref)
-{
-	struct nvme_fc_rport *rport =
-		container_of(ref, struct nvme_fc_rport, ref);
-	struct nvme_fc_lport *lport =
-			localport_to_lport(rport->remoteport.localport);
-	unsigned long flags;
-
-	WARN_ON(rport->remoteport.port_state != FC_OBJSTATE_DELETED);
-	WARN_ON(!list_empty(&rport->ctrl_list));
-
-	/* remove from lport list */
-	spin_lock_irqsave(&nvme_fc_lock, flags);
-	list_del(&rport->endp_list);
-	spin_unlock_irqrestore(&nvme_fc_lock, flags);
-
-	/* let the LLDD know we've finished tearing it down */
-	lport->ops->remoteport_delete(&rport->remoteport);
-
-	ida_simple_remove(&lport->endp_cnt, rport->remoteport.port_num);
-
-	kfree(rport);
-
-	nvme_fc_lport_put(lport);
-}
-
-static void
-nvme_fc_rport_put(struct nvme_fc_rport *rport)
-{
-	kref_put(&rport->ref, nvme_fc_free_rport);
-}
-
-static int
-nvme_fc_rport_get(struct nvme_fc_rport *rport)
-{
-	return kref_get_unless_zero(&rport->ref);
-}
-
 static int
 nvme_fc_abort_lsops(struct nvme_fc_rport *rport)
 {
@@ -592,6 +752,58 @@ restart:
 	return 0;
 }
 
+static void
+nvme_fc_ctrl_connectivity_loss(struct nvme_fc_ctrl *ctrl)
+{
+	dev_info(ctrl->ctrl.device,
+		"NVME-FC{%d}: controller connectivity lost. Awaiting "
+		"Reconnect", ctrl->cnum);
+
+	switch (ctrl->ctrl.state) {
+	case NVME_CTRL_NEW:
+	case NVME_CTRL_LIVE:
+		/*
+		 * Schedule a controller reset. The reset will terminate the
+		 * association and schedule the reconnect timer.  Reconnects
+		 * will be attempted until either the ctlr_loss_tmo
+		 * (max_retries * connect_delay) expires or the remoteport's
+		 * dev_loss_tmo expires.
+		 */
+		if (nvme_reset_ctrl(&ctrl->ctrl)) {
+			dev_warn(ctrl->ctrl.device,
+				"NVME-FC{%d}: Couldn't schedule reset. "
+				"Deleting controller.\n",
+				ctrl->cnum);
+			nvme_delete_ctrl(&ctrl->ctrl);
+		}
+		break;
+
+	case NVME_CTRL_RECONNECTING:
+		/*
+		 * The association has already been terminated and the
+		 * controller is attempting reconnects.  No need to do anything
+		 * futher.  Reconnects will be attempted until either the
+		 * ctlr_loss_tmo (max_retries * connect_delay) expires or the
+		 * remoteport's dev_loss_tmo expires.
+		 */
+		break;
+
+	case NVME_CTRL_RESETTING:
+		/*
+		 * Controller is already in the process of terminating the
+		 * association.  No need to do anything further. The reconnect
+		 * step will kick in naturally after the association is
+		 * terminated.
+		 */
+		break;
+
+	case NVME_CTRL_DELETING:
+	default:
+		/* no action to take - let it delete */
+		break;
+	}
+}
+
 /**
  * nvme_fc_unregister_remoteport - transport entry point called by an
  *                              LLDD to deregister/remove a previously
@@ -621,19 +833,78 @@ nvme_fc_unregister_remoteport(struct nvme_fc_remote_port *portptr)
 	}
 	portptr->port_state = FC_OBJSTATE_DELETED;
 
-	/* tear down all associations to the remote port */
-	list_for_each_entry(ctrl, &rport->ctrl_list, ctrl_list)
-		__nvme_fc_del_ctrl(ctrl);
+	rport->dev_loss_end = jiffies + (portptr->dev_loss_tmo * HZ);
+
+	list_for_each_entry(ctrl, &rport->ctrl_list, ctrl_list) {
+		/* if dev_loss_tmo==0, dev loss is immediate */
+		if (!portptr->dev_loss_tmo) {
+			dev_warn(ctrl->ctrl.device,
+				"NVME-FC{%d}: controller connectivity lost. "
+				"Deleting controller.\n",
+				ctrl->cnum);
+			nvme_delete_ctrl(&ctrl->ctrl);
+		} else
+			nvme_fc_ctrl_connectivity_loss(ctrl);
+	}
 
 	spin_unlock_irqrestore(&rport->lock, flags);
 
 	nvme_fc_abort_lsops(rport);
 
+	if (atomic_read(&rport->act_ctrl_cnt) == 0)
+		rport->lport->ops->remoteport_delete(portptr);
+
+	/*
+	 * release the reference, which will allow, if all controllers
+	 * go away, which should only occur after dev_loss_tmo occurs,
+	 * for the rport to be torn down.
+	 */
 	nvme_fc_rport_put(rport);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nvme_fc_unregister_remoteport);
 
+/**
+ * nvme_fc_rescan_remoteport - transport entry point called by an
+ *                              LLDD to request a nvme device rescan.
+ * @remoteport: pointer to the (registered) remote port that is to be
+ *              rescanned.
+ *
+ * Returns: N/A
+ */
+void
+nvme_fc_rescan_remoteport(struct nvme_fc_remote_port *remoteport)
+{
+	struct nvme_fc_rport *rport = remoteport_to_rport(remoteport);
+
+	nvme_fc_signal_discovery_scan(rport->lport, rport);
+}
+EXPORT_SYMBOL_GPL(nvme_fc_rescan_remoteport);
+
+int
+nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *portptr,
+			u32 dev_loss_tmo)
+{
+	struct nvme_fc_rport *rport = remoteport_to_rport(portptr);
+	unsigned long flags;
+
+	spin_lock_irqsave(&rport->lock, flags);
+
+	if (portptr->port_state != FC_OBJSTATE_ONLINE) {
+		spin_unlock_irqrestore(&rport->lock, flags);
+		return -EINVAL;
+	}
+
+	/* a dev_loss_tmo of 0 (immediate) is allowed to be set */
+	rport->remoteport.dev_loss_tmo = dev_loss_tmo;
+
+	spin_unlock_irqrestore(&rport->lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nvme_fc_set_remoteport_devloss);
+
 
 /* *********************** FC-NVME DMA Handling **************************** */
 
@@ -723,7 +994,6 @@ fc_dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nents,
 		dma_unmap_sg(dev, sg, nents, dir);
 }
 
-
 /* *********************** FC-NVME LS Handling **************************** */
 
 static void nvme_fc_ctrl_put(struct nvme_fc_ctrl *);
@@ -1266,7 +1536,7 @@ nvme_fc_abort_aen_ops(struct nvme_fc_ctrl *ctrl)
 	unsigned long flags;
 	int i, ret;
 
-	for (i = 0; i < NVME_FC_NR_AEN_COMMANDS; i++, aen_op++) {
+	for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
 		if (atomic_read(&aen_op->state) != FCPOP_STATE_ACTIVE)
 			continue;
 
@@ -1331,7 +1601,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 	struct nvme_command *sqe = &op->cmd_iu.sqe;
 	__le16 status = cpu_to_le16(NVME_SC_SUCCESS << 1);
 	union nvme_result result;
-	bool complete_rq, terminate_assoc = true;
+	bool terminate_assoc = true;
 
 	/*
 	 * WARNING:
@@ -1373,10 +1643,11 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 	fc_dma_sync_single_for_cpu(ctrl->lport->dev, op->fcp_req.rspdma,
 				sizeof(op->rsp_iu), DMA_FROM_DEVICE);
 
-	if (atomic_read(&op->state) == FCPOP_STATE_ABORTED)
-		status = cpu_to_le16((NVME_SC_ABORT_REQ | NVME_SC_DNR) << 1);
+	if (atomic_read(&op->state) == FCPOP_STATE_ABORTED ||
+			op->flags & FCOP_FLAGS_TERMIO)
+		status = cpu_to_le16(NVME_SC_ABORT_REQ << 1);
 	else if (freq->status)
-		status = cpu_to_le16(NVME_SC_FC_TRANSPORT_ERROR << 1);
+		status = cpu_to_le16(NVME_SC_INTERNAL << 1);
 
 	/*
 	 * For the linux implementation, if we have an unsuccesful
@@ -1404,7 +1675,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 		 */
 		if (freq->transferred_length !=
 			be32_to_cpu(op->cmd_iu.data_len)) {
-			status = cpu_to_le16(NVME_SC_FC_TRANSPORT_ERROR << 1);
+			status = cpu_to_le16(NVME_SC_INTERNAL << 1);
 			goto done;
 		}
 		result.u64 = 0;
@@ -1421,7 +1692,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 					freq->transferred_length ||
 			     op->rsp_iu.status_code ||
 			     sqe->common.command_id != cqe->command_id)) {
-			status = cpu_to_le16(NVME_SC_FC_TRANSPORT_ERROR << 1);
+			status = cpu_to_le16(NVME_SC_INTERNAL << 1);
 			goto done;
 		}
 		result = cqe->result;
@@ -1429,7 +1700,7 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 		break;
 
 	default:
-		status = cpu_to_le16(NVME_SC_FC_TRANSPORT_ERROR << 1);
+		status = cpu_to_le16(NVME_SC_INTERNAL << 1);
 		goto done;
 	}
 
@@ -1438,23 +1709,27 @@ nvme_fc_fcpio_done(struct nvmefc_fcp_req *req)
 done:
 	if (op->flags & FCOP_FLAGS_AEN) {
 		nvme_complete_async_event(&queue->ctrl->ctrl, status, &result);
-		complete_rq = __nvme_fc_fcpop_chk_teardowns(ctrl, op);
+		__nvme_fc_fcpop_chk_teardowns(ctrl, op);
 		atomic_set(&op->state, FCPOP_STATE_IDLE);
 		op->flags = FCOP_FLAGS_AEN;	/* clear other flags */
 		nvme_fc_ctrl_put(ctrl);
 		goto check_error;
 	}
 
-	complete_rq = __nvme_fc_fcpop_chk_teardowns(ctrl, op);
-	if (!complete_rq) {
-		if (unlikely(op->flags & FCOP_FLAGS_TERMIO)) {
-			status = cpu_to_le16(NVME_SC_ABORT_REQ << 1);
-			if (blk_queue_dying(rq->q))
-				status |= cpu_to_le16(NVME_SC_DNR << 1);
-		}
-		nvme_end_request(rq, status, result);
-	} else
+	/*
+	 * Force failures of commands if we're killing the controller
+	 * or have an error on a command used to create an new association
+	 */
+	if (status &&
+	    (blk_queue_dying(rq->q) ||
+	     ctrl->ctrl.state == NVME_CTRL_NEW ||
+	     ctrl->ctrl.state == NVME_CTRL_RECONNECTING))
+		status |= cpu_to_le16(NVME_SC_DNR << 1);
+
+	if (__nvme_fc_fcpop_chk_teardowns(ctrl, op))
 		__nvme_fc_final_op_cleanup(rq);
+	else
+		nvme_end_request(rq, status, result);
 
 check_error:
 	if (terminate_assoc)
@@ -1531,7 +1806,7 @@ nvme_fc_init_aen_ops(struct nvme_fc_ctrl *ctrl)
 	int i, ret;
 
 	aen_op = ctrl->aen_ops;
-	for (i = 0; i < NVME_FC_NR_AEN_COMMANDS; i++, aen_op++) {
+	for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
 		private = kzalloc(ctrl->lport->ops->fcprqst_priv_sz,
 						GFP_KERNEL);
 		if (!private)
@@ -1541,7 +1816,7 @@ nvme_fc_init_aen_ops(struct nvme_fc_ctrl *ctrl)
 		sqe = &cmdiu->sqe;
 		ret = __nvme_fc_init_request(ctrl, &ctrl->queues[0],
 				aen_op, (struct request *)NULL,
-				(AEN_CMDID_BASE + i));
+				(NVME_AQ_BLK_MQ_DEPTH + i));
 		if (ret) {
 			kfree(private);
 			return ret;
@@ -1554,7 +1829,7 @@ nvme_fc_init_aen_ops(struct nvme_fc_ctrl *ctrl)
 		memset(sqe, 0, sizeof(*sqe));
 		sqe->common.opcode = nvme_admin_async_event;
 		/* Note: core layer may overwrite the sqe.command_id value */
-		sqe->common.command_id = AEN_CMDID_BASE + i;
+		sqe->common.command_id = NVME_AQ_BLK_MQ_DEPTH + i;
 	}
 	return 0;
 }
@@ -1566,7 +1841,7 @@ nvme_fc_term_aen_ops(struct nvme_fc_ctrl *ctrl)
 	int i;
 
 	aen_op = ctrl->aen_ops;
-	for (i = 0; i < NVME_FC_NR_AEN_COMMANDS; i++, aen_op++) {
+	for (i = 0; i < NVME_NR_AEN_COMMANDS; i++, aen_op++) {
 		if (!aen_op->fcp_req.private)
 			continue;
 
@@ -1610,7 +1885,7 @@ nvme_fc_init_admin_hctx(struct blk_mq_hw_ctx *hctx, void *data,
 }
 
 static void
-nvme_fc_init_queue(struct nvme_fc_ctrl *ctrl, int idx, size_t queue_size)
+nvme_fc_init_queue(struct nvme_fc_ctrl *ctrl, int idx)
 {
 	struct nvme_fc_queue *queue;
 
@@ -1626,8 +1901,6 @@ nvme_fc_init_queue(struct nvme_fc_ctrl *ctrl, int idx, size_t queue_size)
 	else
 		queue->cmnd_capsule_len = sizeof(struct nvme_command);
 
-	queue->queue_size = queue_size;
-
 	/*
 	 * Considered whether we should allocate buffers for all SQEs
 	 * and CQEs and dma map them - mapping their respective entries
@@ -1751,7 +2024,7 @@ nvme_fc_init_io_queues(struct nvme_fc_ctrl *ctrl)
 	int i;
 
 	for (i = 1; i < ctrl->ctrl.queue_count; i++)
-		nvme_fc_init_queue(ctrl, i, ctrl->ctrl.sqsize);
+		nvme_fc_init_queue(ctrl, i);
 }
 
 static void
@@ -1825,13 +2098,6 @@ nvme_fc_error_recovery(struct nvme_fc_ctrl *ctrl, char *errmsg)
 	dev_warn(ctrl->ctrl.device,
 		"NVME-FC{%d}: resetting controller\n", ctrl->cnum);
 
-	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
-		dev_err(ctrl->ctrl.device,
-			"NVME-FC{%d}: error_recovery: Couldn't change state "
-			"to RECONNECTING\n", ctrl->cnum);
-		return;
-	}
-
 	nvme_reset_ctrl(&ctrl->ctrl);
 }
 
@@ -1842,13 +2108,14 @@ nvme_fc_timeout(struct request *rq, bool reserved)
 	struct nvme_fc_ctrl *ctrl = op->ctrl;
 	int ret;
 
-	if (reserved)
+	if (ctrl->rport->remoteport.port_state != FC_OBJSTATE_ONLINE ||
+			atomic_read(&op->state) == FCPOP_STATE_ABORTED)
 		return BLK_EH_RESET_TIMER;
 
 	ret = __nvme_fc_abort_op(ctrl, op);
 	if (ret)
-		/* io wasn't active to abort consider it done */
-		return BLK_EH_HANDLED;
+		/* io wasn't active to abort */
+		return BLK_EH_NOT_HANDLED;
 
 	/*
 	 * we can't individually ABTS an io without affecting the queue,
@@ -1859,7 +2126,12 @@ nvme_fc_timeout(struct request *rq, bool reserved)
 	 */
 	nvme_fc_error_recovery(ctrl, "io timeout error");
 
-	return BLK_EH_HANDLED;
+	/*
+	 * the io abort has been initiated. Have the reset timer
+	 * restarted and the abort completion will complete the io
+	 * shortly. Avoids a synchronous wait while the abort finishes.
+	 */
+	return BLK_EH_RESET_TIMER;
 }
 
 static int
@@ -1989,16 +2261,17 @@ nvme_fc_start_fcp_op(struct nvme_fc_ctrl *ctrl, struct nvme_fc_queue *queue,
 	 * as well as those by FC-NVME spec.
 	 */
 	WARN_ON_ONCE(sqe->common.metadata);
-	WARN_ON_ONCE(sqe->common.dptr.prp1);
-	WARN_ON_ONCE(sqe->common.dptr.prp2);
 	sqe->common.flags |= NVME_CMD_SGL_METABUF;
 
 	/*
-	 * format SQE DPTR field per FC-NVME rules
-	 *    type=data block descr; subtype=offset;
-	 *    offset is currently 0.
+	 * format SQE DPTR field per FC-NVME rules:
+	 *    type=0x5     Transport SGL Data Block Descriptor
+	 *    subtype=0xA  Transport-specific value
+	 *    address=0
+	 *    length=length of the data series
 	 */
-	sqe->rw.dptr.sgl.type = NVME_SGL_FMT_OFFSET;
+	sqe->rw.dptr.sgl.type = (NVME_TRANSPORT_SGL_DATA_DESC << 4) |
+					NVME_SGL_FMT_TRANSPORT_A;
 	sqe->rw.dptr.sgl.length = cpu_to_le32(data_len);
 	sqe->rw.dptr.sgl.addr = 0;
 
@@ -2109,7 +2382,7 @@ nvme_fc_poll(struct blk_mq_hw_ctx *hctx, unsigned int tag)
 }
 
 static void
-nvme_fc_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
+nvme_fc_submit_async_event(struct nvme_ctrl *arg)
 {
 	struct nvme_fc_ctrl *ctrl = to_fc_ctrl(arg);
 	struct nvme_fc_fcp_op *aen_op;
@@ -2117,9 +2390,6 @@ nvme_fc_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
 	bool terminating = false;
 	blk_status_t ret;
 
-	if (aer_idx > NVME_FC_NR_AEN_COMMANDS)
-		return;
-
 	spin_lock_irqsave(&ctrl->lock, flags);
 	if (ctrl->flags & FCCTRL_TERMIO)
 		terminating = true;
@@ -2128,13 +2398,13 @@ nvme_fc_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
 	if (terminating)
 		return;
 
-	aen_op = &ctrl->aen_ops[aer_idx];
+	aen_op = &ctrl->aen_ops[0];
 
 	ret = nvme_fc_start_fcp_op(ctrl, aen_op->queue, aen_op, 0,
 					NVMEFC_FCP_NODATA);
 	if (ret)
 		dev_err(ctrl->ctrl.device,
-			"failed async event work [%d]\n", aer_idx);
+			"failed async event work\n");
 }
 
 static void
@@ -2336,7 +2606,7 @@ nvme_fc_reinit_io_queues(struct nvme_fc_ctrl *ctrl)
 
 	nvme_fc_init_io_queues(ctrl);
 
-	ret = blk_mq_reinit_tagset(&ctrl->tag_set, nvme_fc_reinit_request);
+	ret = nvme_reinit_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
 	if (ret)
 		goto out_free_io_queues;
 
@@ -2359,6 +2629,61 @@ out_free_io_queues:
 	return ret;
 }
 
+static void
+nvme_fc_rport_active_on_lport(struct nvme_fc_rport *rport)
+{
+	struct nvme_fc_lport *lport = rport->lport;
+
+	atomic_inc(&lport->act_rport_cnt);
+}
+
+static void
+nvme_fc_rport_inactive_on_lport(struct nvme_fc_rport *rport)
+{
+	struct nvme_fc_lport *lport = rport->lport;
+	u32 cnt;
+
+	cnt = atomic_dec_return(&lport->act_rport_cnt);
+	if (cnt == 0 && lport->localport.port_state == FC_OBJSTATE_DELETED)
+		lport->ops->localport_delete(&lport->localport);
+}
+
+static int
+nvme_fc_ctlr_active_on_rport(struct nvme_fc_ctrl *ctrl)
+{
+	struct nvme_fc_rport *rport = ctrl->rport;
+	u32 cnt;
+
+	if (ctrl->assoc_active)
+		return 1;
+
+	ctrl->assoc_active = true;
+	cnt = atomic_inc_return(&rport->act_ctrl_cnt);
+	if (cnt == 1)
+		nvme_fc_rport_active_on_lport(rport);
+
+	return 0;
+}
+
+static int
+nvme_fc_ctlr_inactive_on_rport(struct nvme_fc_ctrl *ctrl)
+{
+	struct nvme_fc_rport *rport = ctrl->rport;
+	struct nvme_fc_lport *lport = rport->lport;
+	u32 cnt;
+
+	/* ctrl->assoc_active=false will be set independently */
+
+	cnt = atomic_dec_return(&rport->act_ctrl_cnt);
+	if (cnt == 0) {
+		if (rport->remoteport.port_state == FC_OBJSTATE_DELETED)
+			lport->ops->remoteport_delete(&rport->remoteport);
+		nvme_fc_rport_inactive_on_lport(rport);
+	}
+
+	return 0;
+}
+
 /*
  * This routine restarts the controller on the host side, and
  * on the link side, recreates the controller association.
@@ -2367,26 +2692,31 @@ static int
 nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
 {
 	struct nvmf_ctrl_options *opts = ctrl->ctrl.opts;
-	u32 segs;
 	int ret;
 	bool changed;
 
 	++ctrl->ctrl.nr_reconnects;
 
+	if (ctrl->rport->remoteport.port_state != FC_OBJSTATE_ONLINE)
+		return -ENODEV;
+
+	if (nvme_fc_ctlr_active_on_rport(ctrl))
+		return -ENOTUNIQ;
+
 	/*
 	 * Create the admin queue
 	 */
 
-	nvme_fc_init_queue(ctrl, 0, NVME_FC_AQ_BLKMQ_DEPTH);
+	nvme_fc_init_queue(ctrl, 0);
 
 	ret = __nvme_fc_create_hw_queue(ctrl, &ctrl->queues[0], 0,
-				NVME_FC_AQ_BLKMQ_DEPTH);
+				NVME_AQ_BLK_MQ_DEPTH);
 	if (ret)
 		goto out_free_queue;
 
 	ret = nvme_fc_connect_admin_queue(ctrl, &ctrl->queues[0],
-				NVME_FC_AQ_BLKMQ_DEPTH,
-				(NVME_FC_AQ_BLKMQ_DEPTH / 4));
+				NVME_AQ_BLK_MQ_DEPTH,
+				(NVME_AQ_BLK_MQ_DEPTH / 4));
 	if (ret)
 		goto out_delete_hw_queue;
 
@@ -2418,9 +2748,8 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
 	if (ret)
 		goto out_disconnect_admin_queue;
 
-	segs = min_t(u32, NVME_FC_MAX_SEGMENTS,
-			ctrl->lport->ops->max_sgl_segments);
-	ctrl->ctrl.max_hw_sectors = (segs - 1) << (PAGE_SHIFT - 9);
+	ctrl->ctrl.max_hw_sectors =
+		(ctrl->lport->ops->max_sgl_segments - 1) << (PAGE_SHIFT - 9);
 
 	ret = nvme_init_identify(&ctrl->ctrl);
 	if (ret)
@@ -2464,11 +2793,11 @@ nvme_fc_create_association(struct nvme_fc_ctrl *ctrl)
 	}
 
 	changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
-	WARN_ON_ONCE(!changed);
 
 	ctrl->ctrl.nr_reconnects = 0;
 
-	nvme_start_ctrl(&ctrl->ctrl);
+	if (changed)
+		nvme_start_ctrl(&ctrl->ctrl);
 
 	return 0;	/* Success */
 
@@ -2481,6 +2810,8 @@ out_delete_hw_queue:
 	__nvme_fc_delete_hw_queue(ctrl, &ctrl->queues[0], 0);
 out_free_queue:
 	nvme_fc_free_queue(&ctrl->queues[0]);
+	ctrl->assoc_active = false;
+	nvme_fc_ctlr_inactive_on_rport(ctrl);
 
 	return ret;
 }
@@ -2496,6 +2827,10 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl)
 {
 	unsigned long flags;
 
+	if (!ctrl->assoc_active)
+		return;
+	ctrl->assoc_active = false;
+
 	spin_lock_irqsave(&ctrl->lock, flags);
 	ctrl->flags |= FCCTRL_TERMIO;
 	ctrl->iocnt = 0;
@@ -2536,7 +2871,8 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl)
 	 * use blk_mq_tagset_busy_itr() and the transport routine to
 	 * terminate the exchanges.
 	 */
-	blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
+	if (ctrl->ctrl.state != NVME_CTRL_NEW)
+		blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
 	blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
 				nvme_fc_terminate_exchange, &ctrl->ctrl);
 
@@ -2544,10 +2880,10 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl)
 	nvme_fc_abort_aen_ops(ctrl);
 
 	/* wait for all io that had to be aborted */
-	spin_lock_irqsave(&ctrl->lock, flags);
+	spin_lock_irq(&ctrl->lock);
 	wait_event_lock_irq(ctrl->ioabort_wait, ctrl->iocnt == 0, ctrl->lock);
 	ctrl->flags &= ~FCCTRL_TERMIO;
-	spin_unlock_irqrestore(&ctrl->lock, flags);
+	spin_unlock_irq(&ctrl->lock);
 
 	nvme_fc_term_aen_ops(ctrl);
 
@@ -2567,102 +2903,64 @@ nvme_fc_delete_association(struct nvme_fc_ctrl *ctrl)
 
 	__nvme_fc_delete_hw_queue(ctrl, &ctrl->queues[0], 0);
 	nvme_fc_free_queue(&ctrl->queues[0]);
+
+	nvme_fc_ctlr_inactive_on_rport(ctrl);
 }
 
 static void
-nvme_fc_delete_ctrl_work(struct work_struct *work)
+nvme_fc_delete_ctrl(struct nvme_ctrl *nctrl)
 {
-	struct nvme_fc_ctrl *ctrl =
-		container_of(work, struct nvme_fc_ctrl, delete_work);
+	struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl);
 
-	cancel_work_sync(&ctrl->ctrl.reset_work);
 	cancel_delayed_work_sync(&ctrl->connect_work);
-	nvme_stop_ctrl(&ctrl->ctrl);
-	nvme_remove_namespaces(&ctrl->ctrl);
 	/*
 	 * kill the association on the link side.  this will block
 	 * waiting for io to terminate
 	 */
 	nvme_fc_delete_association(ctrl);
-
-	/*
-	 * tear down the controller
-	 * After the last reference on the nvme ctrl is removed,
-	 * the transport nvme_fc_nvme_ctrl_freed() callback will be
-	 * invoked. From there, the transport will tear down it's
-	 * logical queues and association.
-	 */
-	nvme_uninit_ctrl(&ctrl->ctrl);
-
-	nvme_put_ctrl(&ctrl->ctrl);
-}
-
-static bool
-__nvme_fc_schedule_delete_work(struct nvme_fc_ctrl *ctrl)
-{
-	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING))
-		return true;
-
-	if (!queue_work(nvme_wq, &ctrl->delete_work))
-		return true;
-
-	return false;
-}
-
-static int
-__nvme_fc_del_ctrl(struct nvme_fc_ctrl *ctrl)
-{
-	return __nvme_fc_schedule_delete_work(ctrl) ? -EBUSY : 0;
-}
-
-/*
- * Request from nvme core layer to delete the controller
- */
-static int
-nvme_fc_del_nvme_ctrl(struct nvme_ctrl *nctrl)
-{
-	struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl);
-	int ret;
-
-	if (!kref_get_unless_zero(&ctrl->ctrl.kref))
-		return -EBUSY;
-
-	ret = __nvme_fc_del_ctrl(ctrl);
-
-	if (!ret)
-		flush_workqueue(nvme_wq);
-
-	nvme_put_ctrl(&ctrl->ctrl);
-
-	return ret;
 }
 
 static void
 nvme_fc_reconnect_or_delete(struct nvme_fc_ctrl *ctrl, int status)
 {
-	/* If we are resetting/deleting then do nothing */
-	if (ctrl->ctrl.state != NVME_CTRL_RECONNECTING) {
-		WARN_ON_ONCE(ctrl->ctrl.state == NVME_CTRL_NEW ||
-			ctrl->ctrl.state == NVME_CTRL_LIVE);
-		return;
-	}
+	struct nvme_fc_rport *rport = ctrl->rport;
+	struct nvme_fc_remote_port *portptr = &rport->remoteport;
+	unsigned long recon_delay = ctrl->ctrl.opts->reconnect_delay * HZ;
+	bool recon = true;
 
-	dev_info(ctrl->ctrl.device,
-		"NVME-FC{%d}: reset: Reconnect attempt failed (%d)\n",
-		ctrl->cnum, status);
+	if (ctrl->ctrl.state != NVME_CTRL_RECONNECTING)
+		return;
 
-	if (nvmf_should_reconnect(&ctrl->ctrl)) {
+	if (portptr->port_state == FC_OBJSTATE_ONLINE)
 		dev_info(ctrl->ctrl.device,
-			"NVME-FC{%d}: Reconnect attempt in %d seconds.\n",
-			ctrl->cnum, ctrl->ctrl.opts->reconnect_delay);
-		queue_delayed_work(nvme_wq, &ctrl->connect_work,
-				ctrl->ctrl.opts->reconnect_delay * HZ);
+			"NVME-FC{%d}: reset: Reconnect attempt failed (%d)\n",
+			ctrl->cnum, status);
+	else if (time_after_eq(jiffies, rport->dev_loss_end))
+		recon = false;
+
+	if (recon && nvmf_should_reconnect(&ctrl->ctrl)) {
+		if (portptr->port_state == FC_OBJSTATE_ONLINE)
+			dev_info(ctrl->ctrl.device,
+				"NVME-FC{%d}: Reconnect attempt in %ld "
+				"seconds\n",
+				ctrl->cnum, recon_delay / HZ);
+		else if (time_after(jiffies + recon_delay, rport->dev_loss_end))
+			recon_delay = rport->dev_loss_end - jiffies;
+
+		queue_delayed_work(nvme_wq, &ctrl->connect_work, recon_delay);
 	} else {
-		dev_warn(ctrl->ctrl.device,
+		if (portptr->port_state == FC_OBJSTATE_ONLINE)
+			dev_warn(ctrl->ctrl.device,
 				"NVME-FC{%d}: Max reconnect attempts (%d) "
 				"reached. Removing controller\n",
 				ctrl->cnum, ctrl->ctrl.nr_reconnects);
-		WARN_ON(__nvme_fc_schedule_delete_work(ctrl));
+		else
+			dev_warn(ctrl->ctrl.device,
+				"NVME-FC{%d}: dev_loss_tmo (%d) expired "
+				"while waiting for remoteport connectivity. "
+				"Removing controller\n", ctrl->cnum,
+				portptr->dev_loss_tmo);
+		WARN_ON(nvme_delete_ctrl(&ctrl->ctrl));
 	}
 }
 
@@ -2674,15 +2972,28 @@ nvme_fc_reset_ctrl_work(struct work_struct *work)
 	int ret;
 
 	nvme_stop_ctrl(&ctrl->ctrl);
+
 	/* will block will waiting for io to terminate */
 	nvme_fc_delete_association(ctrl);
 
-	ret = nvme_fc_create_association(ctrl);
+	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RECONNECTING)) {
+		dev_err(ctrl->ctrl.device,
+			"NVME-FC{%d}: error_recovery: Couldn't change state "
+			"to RECONNECTING\n", ctrl->cnum);
+		return;
+	}
+
+	if (ctrl->rport->remoteport.port_state == FC_OBJSTATE_ONLINE)
+		ret = nvme_fc_create_association(ctrl);
+	else
+		ret = -ENOTCONN;
+
 	if (ret)
 		nvme_fc_reconnect_or_delete(ctrl, ret);
 	else
 		dev_info(ctrl->ctrl.device,
-			"NVME-FC{%d}: controller reset complete\n", ctrl->cnum);
+			"NVME-FC{%d}: controller reset complete\n",
+			ctrl->cnum);
 }
 
 static const struct nvme_ctrl_ops nvme_fc_ctrl_ops = {
@@ -2694,8 +3005,9 @@ static const struct nvme_ctrl_ops nvme_fc_ctrl_ops = {
 	.reg_write32		= nvmf_reg_write32,
 	.free_ctrl		= nvme_fc_nvme_ctrl_freed,
 	.submit_async_event	= nvme_fc_submit_async_event,
-	.delete_ctrl		= nvme_fc_del_nvme_ctrl,
+	.delete_ctrl		= nvme_fc_delete_ctrl,
 	.get_address		= nvmf_get_address,
+	.reinit_request		= nvme_fc_reinit_request,
 };
 
 static void
@@ -2727,13 +3039,40 @@ static const struct blk_mq_ops nvme_fc_admin_mq_ops = {
 };
 
 
+/*
+ * Fails a controller request if it matches an existing controller
+ * (association) with the same tuple:
+ * <Host NQN, Host ID, local FC port, remote FC port, SUBSYS NQN>
+ *
+ * The ports don't need to be compared as they are intrinsically
+ * already matched by the port pointers supplied.
+ */
+static bool
+nvme_fc_existing_controller(struct nvme_fc_rport *rport,
+		struct nvmf_ctrl_options *opts)
+{
+	struct nvme_fc_ctrl *ctrl;
+	unsigned long flags;
+	bool found = false;
+
+	spin_lock_irqsave(&rport->lock, flags);
+	list_for_each_entry(ctrl, &rport->ctrl_list, ctrl_list) {
+		found = nvmf_ctlr_matches_baseopts(&ctrl->ctrl, opts);
+		if (found)
+			break;
+	}
+	spin_unlock_irqrestore(&rport->lock, flags);
+
+	return found;
+}
+
 static struct nvme_ctrl *
 nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 	struct nvme_fc_lport *lport, struct nvme_fc_rport *rport)
 {
 	struct nvme_fc_ctrl *ctrl;
 	unsigned long flags;
-	int ret, idx;
+	int ret, idx, retry;
 
 	if (!(rport->remoteport.port_role &
 	    (FC_PORT_ROLE_NVME_DISCOVERY | FC_PORT_ROLE_NVME_TARGET))) {
@@ -2741,6 +3080,12 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 		goto out_fail;
 	}
 
+	if (!opts->duplicate_connect &&
+	    nvme_fc_existing_controller(rport, opts)) {
+		ret = -EALREADY;
+		goto out_fail;
+	}
+
 	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);
 	if (!ctrl) {
 		ret = -ENOMEM;
@@ -2759,11 +3104,12 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 	ctrl->rport = rport;
 	ctrl->dev = lport->dev;
 	ctrl->cnum = idx;
+	ctrl->assoc_active = false;
+	init_waitqueue_head(&ctrl->ioabort_wait);
 
 	get_device(ctrl->dev);
 	kref_init(&ctrl->ref);
 
-	INIT_WORK(&ctrl->delete_work, nvme_fc_delete_ctrl_work);
 	INIT_WORK(&ctrl->ctrl.reset_work, nvme_fc_reset_ctrl_work);
 	INIT_DELAYED_WORK(&ctrl->connect_work, nvme_fc_connect_ctrl_work);
 	spin_lock_init(&ctrl->lock);
@@ -2785,7 +3131,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 
 	memset(&ctrl->admin_tag_set, 0, sizeof(ctrl->admin_tag_set));
 	ctrl->admin_tag_set.ops = &nvme_fc_admin_mq_ops;
-	ctrl->admin_tag_set.queue_depth = NVME_FC_AQ_BLKMQ_DEPTH;
+	ctrl->admin_tag_set.queue_depth = NVME_AQ_MQ_TAG_DEPTH;
 	ctrl->admin_tag_set.reserved_tags = 2; /* fabric connect + Keep-Alive */
 	ctrl->admin_tag_set.numa_node = NUMA_NO_NODE;
 	ctrl->admin_tag_set.cmd_size = sizeof(struct nvme_fc_fcp_op) +
@@ -2795,6 +3141,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 	ctrl->admin_tag_set.driver_data = ctrl;
 	ctrl->admin_tag_set.nr_hw_queues = 1;
 	ctrl->admin_tag_set.timeout = ADMIN_TIMEOUT;
+	ctrl->admin_tag_set.flags = BLK_MQ_F_NO_SCHED;
 
 	ret = blk_mq_alloc_tag_set(&ctrl->admin_tag_set);
 	if (ret)
@@ -2824,9 +3171,37 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 	list_add_tail(&ctrl->ctrl_list, &rport->ctrl_list);
 	spin_unlock_irqrestore(&rport->lock, flags);
 
-	ret = nvme_fc_create_association(ctrl);
+	/*
+	 * It's possible that transactions used to create the association
+	 * may fail. Examples: CreateAssociation LS or CreateIOConnection
+	 * LS gets dropped/corrupted/fails; or a frame gets dropped or a
+	 * command times out for one of the actions to init the controller
+	 * (Connect, Get/Set_Property, Set_Features, etc). Many of these
+	 * transport errors (frame drop, LS failure) inherently must kill
+	 * the association. The transport is coded so that any command used
+	 * to create the association (prior to a LIVE state transition
+	 * while NEW or RECONNECTING) will fail if it completes in error or
+	 * times out.
+	 *
+	 * As such: as the connect request was mostly likely due to a
+	 * udev event that discovered the remote port, meaning there is
+	 * not an admin or script there to restart if the connect
+	 * request fails, retry the initial connection creation up to
+	 * three times before giving up and declaring failure.
+	 */
+	for (retry = 0; retry < 3; retry++) {
+		ret = nvme_fc_create_association(ctrl);
+		if (!ret)
+			break;
+	}
+
 	if (ret) {
+		/* couldn't schedule retry - fail out */
+		dev_err(ctrl->ctrl.device,
+			"NVME-FC{%d}: Connect retry failed\n", ctrl->cnum);
+
 		ctrl->ctrl.opts = NULL;
+
 		/* initiate nvme ctrl ref counting teardown */
 		nvme_uninit_ctrl(&ctrl->ctrl);
 		nvme_put_ctrl(&ctrl->ctrl);
@@ -2848,7 +3223,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
 		return ERR_PTR(ret);
 	}
 
-	kref_get(&ctrl->ctrl.kref);
+	nvme_get_ctrl(&ctrl->ctrl);
 
 	dev_info(ctrl->ctrl.device,
 		"NVME-FC{%d}: new ctrl: NQN \"%s\"\n",
@@ -2996,7 +3371,50 @@ static struct nvmf_transport_ops nvme_fc_transport = {
 
 static int __init nvme_fc_init_module(void)
 {
-	return nvmf_register_transport(&nvme_fc_transport);
+	int ret;
+
+	/*
+	 * NOTE:
+	 * It is expected that in the future the kernel will combine
+	 * the FC-isms that are currently under scsi and now being
+	 * added to by NVME into a new standalone FC class. The SCSI
+	 * and NVME protocols and their devices would be under this
+	 * new FC class.
+	 *
+	 * As we need something to post FC-specific udev events to,
+	 * specifically for nvme probe events, start by creating the
+	 * new device class.  When the new standalone FC class is
+	 * put in place, this code will move to a more generic
+	 * location for the class.
+	 */
+	fc_class = class_create(THIS_MODULE, "fc");
+	if (IS_ERR(fc_class)) {
+		pr_err("couldn't register class fc\n");
+		return PTR_ERR(fc_class);
+	}
+
+	/*
+	 * Create a device for the FC-centric udev events
+	 */
+	fc_udev_device = device_create(fc_class, NULL, MKDEV(0, 0), NULL,
+				"fc_udev_device");
+	if (IS_ERR(fc_udev_device)) {
+		pr_err("couldn't create fc_udev device!\n");
+		ret = PTR_ERR(fc_udev_device);
+		goto out_destroy_class;
+	}
+
+	ret = nvmf_register_transport(&nvme_fc_transport);
+	if (ret)
+		goto out_destroy_device;
+
+	return 0;
+
+out_destroy_device:
+	device_destroy(fc_class, MKDEV(0, 0));
+out_destroy_class:
+	class_destroy(fc_class);
+	return ret;
 }
 
 static void __exit nvme_fc_exit_module(void)
@@ -3009,6 +3427,9 @@ static void __exit nvme_fc_exit_module(void)
 
 	ida_destroy(&nvme_fc_local_port_cnt);
 	ida_destroy(&nvme_fc_ctrl_cnt);
+
+	device_destroy(fc_class, MKDEV(0, 0));
+	class_destroy(fc_class);
 }
 
 module_init(nvme_fc_init_module);
diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c
index 1f79e3f141e6..ba3d7f3349e5 100644
--- a/drivers/nvme/host/lightnvm.c
+++ b/drivers/nvme/host/lightnvm.c
@@ -305,7 +305,7 @@ static int nvme_nvm_identity(struct nvm_dev *nvmdev, struct nvm_id *nvm_id)
 	int ret;
 
 	c.identity.opcode = nvme_nvm_admin_identity;
-	c.identity.nsid = cpu_to_le32(ns->ns_id);
+	c.identity.nsid = cpu_to_le32(ns->head->ns_id);
 	c.identity.chnl_off = 0;
 
 	nvme_nvm_id = kmalloc(sizeof(struct nvme_nvm_id), GFP_KERNEL);
@@ -344,7 +344,7 @@ static int nvme_nvm_get_l2p_tbl(struct nvm_dev *nvmdev, u64 slba, u32 nlb,
 	int ret = 0;
 
 	c.l2p.opcode = nvme_nvm_admin_get_l2p_tbl;
-	c.l2p.nsid = cpu_to_le32(ns->ns_id);
+	c.l2p.nsid = cpu_to_le32(ns->head->ns_id);
 	entries = kmalloc(len, GFP_KERNEL);
 	if (!entries)
 		return -ENOMEM;
@@ -402,7 +402,7 @@ static int nvme_nvm_get_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr ppa,
 	int ret = 0;
 
 	c.get_bb.opcode = nvme_nvm_admin_get_bb_tbl;
-	c.get_bb.nsid = cpu_to_le32(ns->ns_id);
+	c.get_bb.nsid = cpu_to_le32(ns->head->ns_id);
 	c.get_bb.spba = cpu_to_le64(ppa.ppa);
 
 	bb_tbl = kzalloc(tblsz, GFP_KERNEL);
@@ -452,7 +452,7 @@ static int nvme_nvm_set_bb_tbl(struct nvm_dev *nvmdev, struct ppa_addr *ppas,
 	int ret = 0;
 
 	c.set_bb.opcode = nvme_nvm_admin_set_bb_tbl;
-	c.set_bb.nsid = cpu_to_le32(ns->ns_id);
+	c.set_bb.nsid = cpu_to_le32(ns->head->ns_id);
 	c.set_bb.spba = cpu_to_le64(ppas->ppa);
 	c.set_bb.nlb = cpu_to_le16(nr_ppas - 1);
 	c.set_bb.value = type;
@@ -469,7 +469,7 @@ static inline void nvme_nvm_rqtocmd(struct nvm_rq *rqd, struct nvme_ns *ns,
 				    struct nvme_nvm_command *c)
 {
 	c->ph_rw.opcode = rqd->opcode;
-	c->ph_rw.nsid = cpu_to_le32(ns->ns_id);
+	c->ph_rw.nsid = cpu_to_le32(ns->head->ns_id);
 	c->ph_rw.spba = cpu_to_le64(rqd->ppa_addr.ppa);
 	c->ph_rw.metadata = cpu_to_le64(rqd->dma_meta_list);
 	c->ph_rw.control = cpu_to_le16(rqd->flags);
@@ -492,34 +492,47 @@ static void nvme_nvm_end_io(struct request *rq, blk_status_t status)
 	blk_mq_free_request(rq);
 }
 
-static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
+static struct request *nvme_nvm_alloc_request(struct request_queue *q,
+					      struct nvm_rq *rqd,
+					      struct nvme_nvm_command *cmd)
 {
-	struct request_queue *q = dev->q;
 	struct nvme_ns *ns = q->queuedata;
 	struct request *rq;
-	struct bio *bio = rqd->bio;
-	struct nvme_nvm_command *cmd;
-
-	cmd = kzalloc(sizeof(struct nvme_nvm_command), GFP_KERNEL);
-	if (!cmd)
-		return -ENOMEM;
 
 	nvme_nvm_rqtocmd(rqd, ns, cmd);
 
 	rq = nvme_alloc_request(q, (struct nvme_command *)cmd, 0, NVME_QID_ANY);
-	if (IS_ERR(rq)) {
-		kfree(cmd);
-		return PTR_ERR(rq);
-	}
+	if (IS_ERR(rq))
+		return rq;
+
 	rq->cmd_flags &= ~REQ_FAILFAST_DRIVER;
 
-	if (bio) {
-		blk_init_request_from_bio(rq, bio);
+	if (rqd->bio) {
+		blk_init_request_from_bio(rq, rqd->bio);
 	} else {
 		rq->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, IOPRIO_NORM);
 		rq->__data_len = 0;
 	}
 
+	return rq;
+}
+
+static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
+{
+	struct request_queue *q = dev->q;
+	struct nvme_nvm_command *cmd;
+	struct request *rq;
+
+	cmd = kzalloc(sizeof(struct nvme_nvm_command), GFP_KERNEL);
+	if (!cmd)
+		return -ENOMEM;
+
+	rq = nvme_nvm_alloc_request(q, rqd, cmd);
+	if (IS_ERR(rq)) {
+		kfree(cmd);
+		return PTR_ERR(rq);
+	}
+
 	rq->end_io_data = rqd;
 
 	blk_execute_rq_nowait(q, NULL, rq, 0, nvme_nvm_end_io);
@@ -527,6 +540,34 @@ static int nvme_nvm_submit_io(struct nvm_dev *dev, struct nvm_rq *rqd)
 	return 0;
 }
 
+static int nvme_nvm_submit_io_sync(struct nvm_dev *dev, struct nvm_rq *rqd)
+{
+	struct request_queue *q = dev->q;
+	struct request *rq;
+	struct nvme_nvm_command cmd;
+	int ret = 0;
+
+	memset(&cmd, 0, sizeof(struct nvme_nvm_command));
+
+	rq = nvme_nvm_alloc_request(q, rqd, &cmd);
+	if (IS_ERR(rq))
+		return PTR_ERR(rq);
+
+	/* I/Os can fail and the error is signaled through rqd. Callers must
+	 * handle the error accordingly.
+	 */
+	blk_execute_rq(q, NULL, rq, 0);
+	if (nvme_req(rq)->flags & NVME_REQ_CANCELLED)
+		ret = -EINTR;
+
+	rqd->ppa_status = le64_to_cpu(nvme_req(rq)->result.u64);
+	rqd->error = nvme_req(rq)->status;
+
+	blk_mq_free_request(rq);
+
+	return ret;
+}
+
 static void *nvme_nvm_create_dma_pool(struct nvm_dev *nvmdev, char *name)
 {
 	struct nvme_ns *ns = nvmdev->q->queuedata;
@@ -562,6 +603,7 @@ static struct nvm_dev_ops nvme_nvm_dev_ops = {
 	.set_bb_tbl		= nvme_nvm_set_bb_tbl,
 
 	.submit_io		= nvme_nvm_submit_io,
+	.submit_io_sync		= nvme_nvm_submit_io_sync,
 
 	.create_dma_pool	= nvme_nvm_create_dma_pool,
 	.destroy_dma_pool	= nvme_nvm_destroy_dma_pool,
@@ -600,8 +642,6 @@ static int nvme_nvm_submit_user_cmd(struct request_queue *q,
 
 	rq->timeout = timeout ? timeout : ADMIN_TIMEOUT;
 
-	rq->cmd_flags &= ~REQ_FAILFAST_DRIVER;
-
 	if (ppa_buf && ppa_len) {
 		ppa_list = dma_pool_alloc(dev->dma_pool, GFP_KERNEL, &ppa_dma);
 		if (!ppa_list) {
@@ -691,7 +731,7 @@ static int nvme_nvm_submit_vio(struct nvme_ns *ns,
 
 	memset(&c, 0, sizeof(c));
 	c.ph_rw.opcode = vio.opcode;
-	c.ph_rw.nsid = cpu_to_le32(ns->ns_id);
+	c.ph_rw.nsid = cpu_to_le32(ns->head->ns_id);
 	c.ph_rw.control = cpu_to_le16(vio.control);
 	c.ph_rw.length = cpu_to_le16(vio.nppas);
 
@@ -728,7 +768,7 @@ static int nvme_nvm_user_vcmd(struct nvme_ns *ns, int admin,
 
 	memset(&c, 0, sizeof(c));
 	c.common.opcode = vcmd.opcode;
-	c.common.nsid = cpu_to_le32(ns->ns_id);
+	c.common.nsid = cpu_to_le32(ns->head->ns_id);
 	c.common.cdw2[0] = cpu_to_le32(vcmd.cdw2);
 	c.common.cdw2[1] = cpu_to_le32(vcmd.cdw3);
 	/* cdw11-12 */
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
new file mode 100644
index 000000000000..78d92151a904
--- /dev/null
+++ b/drivers/nvme/host/multipath.c
@@ -0,0 +1,291 @@
+/*
+ * Copyright (c) 2017 Christoph Hellwig.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/moduleparam.h>
+#include "nvme.h"
+
+static bool multipath = true;
+module_param(multipath, bool, 0644);
+MODULE_PARM_DESC(multipath,
+	"turn on native support for multiple controllers per subsystem");
+
+void nvme_failover_req(struct request *req)
+{
+	struct nvme_ns *ns = req->q->queuedata;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ns->head->requeue_lock, flags);
+	blk_steal_bios(&ns->head->requeue_list, req);
+	spin_unlock_irqrestore(&ns->head->requeue_lock, flags);
+	blk_mq_end_request(req, 0);
+
+	nvme_reset_ctrl(ns->ctrl);
+	kblockd_schedule_work(&ns->head->requeue_work);
+}
+
+bool nvme_req_needs_failover(struct request *req)
+{
+	if (!(req->cmd_flags & REQ_NVME_MPATH))
+		return false;
+
+	switch (nvme_req(req)->status & 0x7ff) {
+	/*
+	 * Generic command status:
+	 */
+	case NVME_SC_INVALID_OPCODE:
+	case NVME_SC_INVALID_FIELD:
+	case NVME_SC_INVALID_NS:
+	case NVME_SC_LBA_RANGE:
+	case NVME_SC_CAP_EXCEEDED:
+	case NVME_SC_RESERVATION_CONFLICT:
+		return false;
+
+	/*
+	 * I/O command set specific error.  Unfortunately these values are
+	 * reused for fabrics commands, but those should never get here.
+	 */
+	case NVME_SC_BAD_ATTRIBUTES:
+	case NVME_SC_INVALID_PI:
+	case NVME_SC_READ_ONLY:
+	case NVME_SC_ONCS_NOT_SUPPORTED:
+		WARN_ON_ONCE(nvme_req(req)->cmd->common.opcode ==
+			nvme_fabrics_command);
+		return false;
+
+	/*
+	 * Media and Data Integrity Errors:
+	 */
+	case NVME_SC_WRITE_FAULT:
+	case NVME_SC_READ_ERROR:
+	case NVME_SC_GUARD_CHECK:
+	case NVME_SC_APPTAG_CHECK:
+	case NVME_SC_REFTAG_CHECK:
+	case NVME_SC_COMPARE_FAILED:
+	case NVME_SC_ACCESS_DENIED:
+	case NVME_SC_UNWRITTEN_BLOCK:
+		return false;
+	}
+
+	/* Everything else could be a path failure, so should be retried */
+	return true;
+}
+
+void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl)
+{
+	struct nvme_ns *ns;
+
+	mutex_lock(&ctrl->namespaces_mutex);
+	list_for_each_entry(ns, &ctrl->namespaces, list) {
+		if (ns->head->disk)
+			kblockd_schedule_work(&ns->head->requeue_work);
+	}
+	mutex_unlock(&ctrl->namespaces_mutex);
+}
+
+static struct nvme_ns *__nvme_find_path(struct nvme_ns_head *head)
+{
+	struct nvme_ns *ns;
+
+	list_for_each_entry_rcu(ns, &head->list, siblings) {
+		if (ns->ctrl->state == NVME_CTRL_LIVE) {
+			rcu_assign_pointer(head->current_path, ns);
+			return ns;
+		}
+	}
+
+	return NULL;
+}
+
+inline struct nvme_ns *nvme_find_path(struct nvme_ns_head *head)
+{
+	struct nvme_ns *ns = srcu_dereference(head->current_path, &head->srcu);
+
+	if (unlikely(!ns || ns->ctrl->state != NVME_CTRL_LIVE))
+		ns = __nvme_find_path(head);
+	return ns;
+}
+
+static blk_qc_t nvme_ns_head_make_request(struct request_queue *q,
+		struct bio *bio)
+{
+	struct nvme_ns_head *head = q->queuedata;
+	struct device *dev = disk_to_dev(head->disk);
+	struct nvme_ns *ns;
+	blk_qc_t ret = BLK_QC_T_NONE;
+	int srcu_idx;
+
+	srcu_idx = srcu_read_lock(&head->srcu);
+	ns = nvme_find_path(head);
+	if (likely(ns)) {
+		bio->bi_disk = ns->disk;
+		bio->bi_opf |= REQ_NVME_MPATH;
+		ret = direct_make_request(bio);
+	} else if (!list_empty_careful(&head->list)) {
+		dev_warn_ratelimited(dev, "no path available - requeing I/O\n");
+
+		spin_lock_irq(&head->requeue_lock);
+		bio_list_add(&head->requeue_list, bio);
+		spin_unlock_irq(&head->requeue_lock);
+	} else {
+		dev_warn_ratelimited(dev, "no path - failing I/O\n");
+
+		bio->bi_status = BLK_STS_IOERR;
+		bio_endio(bio);
+	}
+
+	srcu_read_unlock(&head->srcu, srcu_idx);
+	return ret;
+}
+
+static bool nvme_ns_head_poll(struct request_queue *q, blk_qc_t qc)
+{
+	struct nvme_ns_head *head = q->queuedata;
+	struct nvme_ns *ns;
+	bool found = false;
+	int srcu_idx;
+
+	srcu_idx = srcu_read_lock(&head->srcu);
+	ns = srcu_dereference(head->current_path, &head->srcu);
+	if (likely(ns && ns->ctrl->state == NVME_CTRL_LIVE))
+		found = ns->queue->poll_fn(q, qc);
+	srcu_read_unlock(&head->srcu, srcu_idx);
+	return found;
+}
+
+static void nvme_requeue_work(struct work_struct *work)
+{
+	struct nvme_ns_head *head =
+		container_of(work, struct nvme_ns_head, requeue_work);
+	struct bio *bio, *next;
+
+	spin_lock_irq(&head->requeue_lock);
+	next = bio_list_get(&head->requeue_list);
+	spin_unlock_irq(&head->requeue_lock);
+
+	while ((bio = next) != NULL) {
+		next = bio->bi_next;
+		bio->bi_next = NULL;
+
+		/*
+		 * Reset disk to the mpath node and resubmit to select a new
+		 * path.
+		 */
+		bio->bi_disk = head->disk;
+		generic_make_request(bio);
+	}
+}
+
+int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl, struct nvme_ns_head *head)
+{
+	struct request_queue *q;
+	bool vwc = false;
+
+	bio_list_init(&head->requeue_list);
+	spin_lock_init(&head->requeue_lock);
+	INIT_WORK(&head->requeue_work, nvme_requeue_work);
+
+	/*
+	 * Add a multipath node if the subsystems supports multiple controllers.
+	 * We also do this for private namespaces as the namespace sharing data could
+	 * change after a rescan.
+	 */
+	if (!(ctrl->subsys->cmic & (1 << 1)) || !multipath)
+		return 0;
+
+	q = blk_alloc_queue_node(GFP_KERNEL, NUMA_NO_NODE);
+	if (!q)
+		goto out;
+	q->queuedata = head;
+	blk_queue_make_request(q, nvme_ns_head_make_request);
+	q->poll_fn = nvme_ns_head_poll;
+	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
+	/* set to a default value for 512 until disk is validated */
+	blk_queue_logical_block_size(q, 512);
+
+	/* we need to propagate up the VMC settings */
+	if (ctrl->vwc & NVME_CTRL_VWC_PRESENT)
+		vwc = true;
+	blk_queue_write_cache(q, vwc, vwc);
+
+	head->disk = alloc_disk(0);
+	if (!head->disk)
+		goto out_cleanup_queue;
+	head->disk->fops = &nvme_ns_head_ops;
+	head->disk->private_data = head;
+	head->disk->queue = q;
+	head->disk->flags = GENHD_FL_EXT_DEVT;
+	sprintf(head->disk->disk_name, "nvme%dn%d",
+			ctrl->subsys->instance, head->instance);
+	return 0;
+
+out_cleanup_queue:
+	blk_cleanup_queue(q);
+out:
+	return -ENOMEM;
+}
+
+void nvme_mpath_add_disk(struct nvme_ns_head *head)
+{
+	if (!head->disk)
+		return;
+	device_add_disk(&head->subsys->dev, head->disk);
+	if (sysfs_create_group(&disk_to_dev(head->disk)->kobj,
+			&nvme_ns_id_attr_group))
+		pr_warn("%s: failed to create sysfs group for identification\n",
+			head->disk->disk_name);
+}
+
+void nvme_mpath_add_disk_links(struct nvme_ns *ns)
+{
+	struct kobject *slave_disk_kobj, *holder_disk_kobj;
+
+	if (!ns->head->disk)
+		return;
+
+	slave_disk_kobj = &disk_to_dev(ns->disk)->kobj;
+	if (sysfs_create_link(ns->head->disk->slave_dir, slave_disk_kobj,
+			kobject_name(slave_disk_kobj)))
+		return;
+
+	holder_disk_kobj = &disk_to_dev(ns->head->disk)->kobj;
+	if (sysfs_create_link(ns->disk->part0.holder_dir, holder_disk_kobj,
+			kobject_name(holder_disk_kobj)))
+		sysfs_remove_link(ns->head->disk->slave_dir,
+			kobject_name(slave_disk_kobj));
+}
+
+void nvme_mpath_remove_disk(struct nvme_ns_head *head)
+{
+	if (!head->disk)
+		return;
+	sysfs_remove_group(&disk_to_dev(head->disk)->kobj,
+			   &nvme_ns_id_attr_group);
+	del_gendisk(head->disk);
+	blk_set_queue_dying(head->disk->queue);
+	/* make sure all pending bios are cleaned up */
+	kblockd_schedule_work(&head->requeue_work);
+	flush_work(&head->requeue_work);
+	blk_cleanup_queue(head->disk->queue);
+	put_disk(head->disk);
+}
+
+void nvme_mpath_remove_disk_links(struct nvme_ns *ns)
+{
+	if (!ns->head->disk)
+		return;
+
+	sysfs_remove_link(ns->disk->part0.holder_dir,
+			kobject_name(&disk_to_dev(ns->head->disk)->kobj));
+	sysfs_remove_link(ns->head->disk->slave_dir,
+			kobject_name(&disk_to_dev(ns->disk)->kobj));
+}
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index d3f3c4447515..c0873a68872f 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -15,16 +15,17 @@
 #define _NVME_H
 
 #include <linux/nvme.h>
+#include <linux/cdev.h>
 #include <linux/pci.h>
 #include <linux/kref.h>
 #include <linux/blk-mq.h>
 #include <linux/lightnvm.h>
 #include <linux/sed-opal.h>
 
-extern unsigned char nvme_io_timeout;
+extern unsigned int nvme_io_timeout;
 #define NVME_IO_TIMEOUT	(nvme_io_timeout * HZ)
 
-extern unsigned char admin_timeout;
+extern unsigned int admin_timeout;
 #define ADMIN_TIMEOUT	(admin_timeout * HZ)
 
 #define NVME_DEFAULT_KATO	5
@@ -94,6 +95,11 @@ struct nvme_request {
 	u16			status;
 };
 
+/*
+ * Mark a bio as coming in through the mpath node.
+ */
+#define REQ_NVME_MPATH		REQ_DRV
+
 enum {
 	NVME_REQ_CANCELLED		= (1 << 0),
 };
@@ -127,24 +133,23 @@ struct nvme_ctrl {
 	struct request_queue *admin_q;
 	struct request_queue *connect_q;
 	struct device *dev;
-	struct kref kref;
 	int instance;
 	struct blk_mq_tag_set *tagset;
 	struct blk_mq_tag_set *admin_tagset;
 	struct list_head namespaces;
 	struct mutex namespaces_mutex;
+	struct device ctrl_device;
 	struct device *device;	/* char device */
-	struct list_head node;
-	struct ida ns_ida;
+	struct cdev cdev;
 	struct work_struct reset_work;
+	struct work_struct delete_work;
+
+	struct nvme_subsystem *subsys;
+	struct list_head subsys_entry;
 
 	struct opal_dev *opal_dev;
 
 	char name[12];
-	char serial[20];
-	char model[40];
-	char firmware_rev[8];
-	char subnqn[NVMF_NQN_SIZE];
 	u16 cntlid;
 
 	u32 ctrl_config;
@@ -155,23 +160,23 @@ struct nvme_ctrl {
 	u32 page_size;
 	u32 max_hw_sectors;
 	u16 oncs;
-	u16 vid;
 	u16 oacs;
 	u16 nssa;
 	u16 nr_streams;
 	atomic_t abort_limit;
-	u8 event_limit;
 	u8 vwc;
 	u32 vs;
 	u32 sgls;
 	u16 kas;
 	u8 npss;
 	u8 apsta;
+	u32 aen_result;
 	unsigned int shutdown_timeout;
 	unsigned int kato;
 	bool subsystem;
 	unsigned long quirks;
 	struct nvme_id_power_state psd[32];
+	struct nvme_effects_log *effects;
 	struct work_struct scan_work;
 	struct work_struct async_event_work;
 	struct delayed_work ka_work;
@@ -197,21 +202,72 @@ struct nvme_ctrl {
 	struct nvmf_ctrl_options *opts;
 };
 
+struct nvme_subsystem {
+	int			instance;
+	struct device		dev;
+	/*
+	 * Because we unregister the device on the last put we need
+	 * a separate refcount.
+	 */
+	struct kref		ref;
+	struct list_head	entry;
+	struct mutex		lock;
+	struct list_head	ctrls;
+	struct list_head	nsheads;
+	char			subnqn[NVMF_NQN_SIZE];
+	char			serial[20];
+	char			model[40];
+	char			firmware_rev[8];
+	u8			cmic;
+	u16			vendor_id;
+	struct ida		ns_ida;
+};
+
+/*
+ * Container structure for uniqueue namespace identifiers.
+ */
+struct nvme_ns_ids {
+	u8	eui64[8];
+	u8	nguid[16];
+	uuid_t	uuid;
+};
+
+/*
+ * Anchor structure for namespaces.  There is one for each namespace in a
+ * NVMe subsystem that any of our controllers can see, and the namespace
+ * structure for each controller is chained of it.  For private namespaces
+ * there is a 1:1 relation to our namespace structures, that is ->list
+ * only ever has a single entry for private namespaces.
+ */
+struct nvme_ns_head {
+#ifdef CONFIG_NVME_MULTIPATH
+	struct gendisk		*disk;
+	struct nvme_ns __rcu	*current_path;
+	struct bio_list		requeue_list;
+	spinlock_t		requeue_lock;
+	struct work_struct	requeue_work;
+#endif
+	struct list_head	list;
+	struct srcu_struct      srcu;
+	struct nvme_subsystem	*subsys;
+	unsigned		ns_id;
+	struct nvme_ns_ids	ids;
+	struct list_head	entry;
+	struct kref		ref;
+	int			instance;
+};
+
 struct nvme_ns {
 	struct list_head list;
 
 	struct nvme_ctrl *ctrl;
 	struct request_queue *queue;
 	struct gendisk *disk;
+	struct list_head siblings;
 	struct nvm_dev *ndev;
 	struct kref kref;
-	int instance;
+	struct nvme_ns_head *head;
 
-	u8 eui[8];
-	u8 nguid[16];
-	uuid_t uuid;
-
-	unsigned ns_id;
 	int lba_shift;
 	u16 ms;
 	u16 sgs;
@@ -234,9 +290,10 @@ struct nvme_ctrl_ops {
 	int (*reg_write32)(struct nvme_ctrl *ctrl, u32 off, u32 val);
 	int (*reg_read64)(struct nvme_ctrl *ctrl, u32 off, u64 *val);
 	void (*free_ctrl)(struct nvme_ctrl *ctrl);
-	void (*submit_async_event)(struct nvme_ctrl *ctrl, int aer_idx);
-	int (*delete_ctrl)(struct nvme_ctrl *ctrl);
+	void (*submit_async_event)(struct nvme_ctrl *ctrl);
+	void (*delete_ctrl)(struct nvme_ctrl *ctrl);
 	int (*get_address)(struct nvme_ctrl *ctrl, char *buf, int size);
+	int (*reinit_request)(void *data, struct request *rq);
 };
 
 static inline bool nvme_ctrl_ready(struct nvme_ctrl *ctrl)
@@ -278,6 +335,16 @@ static inline void nvme_end_request(struct request *req, __le16 status,
 	blk_mq_complete_request(req);
 }
 
+static inline void nvme_get_ctrl(struct nvme_ctrl *ctrl)
+{
+	get_device(ctrl->device);
+}
+
+static inline void nvme_put_ctrl(struct nvme_ctrl *ctrl)
+{
+	put_device(ctrl->device);
+}
+
 void nvme_complete_rq(struct request *req);
 void nvme_cancel_request(struct request *req, void *data, bool reserved);
 bool nvme_change_ctrl_state(struct nvme_ctrl *ctrl,
@@ -299,10 +366,8 @@ void nvme_remove_namespaces(struct nvme_ctrl *ctrl);
 int nvme_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, size_t len,
 		bool send);
 
-#define NVME_NR_AERS	1
 void nvme_complete_async_event(struct nvme_ctrl *ctrl, __le16 status,
 		union nvme_result *res);
-void nvme_queue_async_events(struct nvme_ctrl *ctrl);
 
 void nvme_stop_queues(struct nvme_ctrl *ctrl);
 void nvme_start_queues(struct nvme_ctrl *ctrl);
@@ -311,21 +376,79 @@ void nvme_unfreeze(struct nvme_ctrl *ctrl);
 void nvme_wait_freeze(struct nvme_ctrl *ctrl);
 void nvme_wait_freeze_timeout(struct nvme_ctrl *ctrl, long timeout);
 void nvme_start_freeze(struct nvme_ctrl *ctrl);
+int nvme_reinit_tagset(struct nvme_ctrl *ctrl, struct blk_mq_tag_set *set);
 
 #define NVME_QID_ANY -1
 struct request *nvme_alloc_request(struct request_queue *q,
-		struct nvme_command *cmd, unsigned int flags, int qid);
+		struct nvme_command *cmd, blk_mq_req_flags_t flags, int qid);
 blk_status_t nvme_setup_cmd(struct nvme_ns *ns, struct request *req,
 		struct nvme_command *cmd);
 int nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 		void *buf, unsigned bufflen);
 int __nvme_submit_sync_cmd(struct request_queue *q, struct nvme_command *cmd,
 		union nvme_result *result, void *buffer, unsigned bufflen,
-		unsigned timeout, int qid, int at_head, int flags);
+		unsigned timeout, int qid, int at_head,
+		blk_mq_req_flags_t flags);
 int nvme_set_queue_count(struct nvme_ctrl *ctrl, int *count);
 void nvme_start_keep_alive(struct nvme_ctrl *ctrl);
 void nvme_stop_keep_alive(struct nvme_ctrl *ctrl);
 int nvme_reset_ctrl(struct nvme_ctrl *ctrl);
+int nvme_delete_ctrl(struct nvme_ctrl *ctrl);
+int nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl);
+
+extern const struct attribute_group nvme_ns_id_attr_group;
+extern const struct block_device_operations nvme_ns_head_ops;
+
+#ifdef CONFIG_NVME_MULTIPATH
+void nvme_failover_req(struct request *req);
+bool nvme_req_needs_failover(struct request *req);
+void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl);
+int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,struct nvme_ns_head *head);
+void nvme_mpath_add_disk(struct nvme_ns_head *head);
+void nvme_mpath_add_disk_links(struct nvme_ns *ns);
+void nvme_mpath_remove_disk(struct nvme_ns_head *head);
+void nvme_mpath_remove_disk_links(struct nvme_ns *ns);
+
+static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns)
+{
+	struct nvme_ns_head *head = ns->head;
+
+	if (head && ns == srcu_dereference(head->current_path, &head->srcu))
+		rcu_assign_pointer(head->current_path, NULL);
+}
+struct nvme_ns *nvme_find_path(struct nvme_ns_head *head);
+#else
+static inline void nvme_failover_req(struct request *req)
+{
+}
+static inline bool nvme_req_needs_failover(struct request *req)
+{
+	return false;
+}
+static inline void nvme_kick_requeue_lists(struct nvme_ctrl *ctrl)
+{
+}
+static inline int nvme_mpath_alloc_disk(struct nvme_ctrl *ctrl,
+		struct nvme_ns_head *head)
+{
+	return 0;
+}
+static inline void nvme_mpath_add_disk(struct nvme_ns_head *head)
+{
+}
+static inline void nvme_mpath_remove_disk(struct nvme_ns_head *head)
+{
+}
+static inline void nvme_mpath_add_disk_links(struct nvme_ns *ns)
+{
+}
+static inline void nvme_mpath_remove_disk_links(struct nvme_ns *ns)
+{
+}
+static inline void nvme_mpath_clear_current_path(struct nvme_ns *ns)
+{
+}
+#endif /* CONFIG_NVME_MULTIPATH */
 
 #ifdef CONFIG_NVM
 int nvme_nvm_register(struct nvme_ns *ns, char *disk_name, int node);
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index 4a2121335f48..a11cfd470089 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -13,7 +13,6 @@
  */
 
 #include <linux/aer.h>
-#include <linux/bitops.h>
 #include <linux/blkdev.h>
 #include <linux/blk-mq.h>
 #include <linux/blk-mq-pci.h>
@@ -24,13 +23,11 @@
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/once.h>
 #include <linux/pci.h>
-#include <linux/poison.h>
 #include <linux/t10-pi.h>
-#include <linux/timer.h>
 #include <linux/types.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
-#include <asm/unaligned.h>
 #include <linux/sed-opal.h>
 
 #include "nvme.h"
@@ -38,11 +35,7 @@
 #define SQ_SIZE(depth)		(depth * sizeof(struct nvme_command))
 #define CQ_SIZE(depth)		(depth * sizeof(struct nvme_completion))
 
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_AQ_BLKMQ_DEPTH	(NVME_AQ_DEPTH - NVME_NR_AERS)
+#define SGES_PER_PAGE	(PAGE_SIZE / sizeof(struct nvme_sgl_desc))
 
 static int use_threaded_interrupts;
 module_param(use_threaded_interrupts, int, 0);
@@ -56,6 +49,12 @@ module_param(max_host_mem_size_mb, uint, 0444);
 MODULE_PARM_DESC(max_host_mem_size_mb,
 	"Maximum Host Memory Buffer (HMB) size per controller (in MiB)");
 
+static unsigned int sgl_threshold = SZ_32K;
+module_param(sgl_threshold, uint, 0644);
+MODULE_PARM_DESC(sgl_threshold,
+		"Use SGLs when average request segment size is larger or equal to "
+		"this size. Use 0 to disable SGLs.");
+
 static int io_queue_depth_set(const char *val, const struct kernel_param *kp);
 static const struct kernel_param_ops io_queue_depth_ops = {
 	.set = io_queue_depth_set,
@@ -93,7 +92,7 @@ struct nvme_dev {
 	struct mutex shutdown_lock;
 	bool subsystem;
 	void __iomem *cmb;
-	dma_addr_t cmb_dma_addr;
+	pci_bus_addr_t cmb_bus_addr;
 	u64 cmb_size;
 	u32 cmbsz;
 	u32 cmbloc;
@@ -177,6 +176,7 @@ struct nvme_queue {
 struct nvme_iod {
 	struct nvme_request req;
 	struct nvme_queue *nvmeq;
+	bool use_sgl;
 	int aborted;
 	int npages;		/* In the PRP list. 0 means small pool in use */
 	int nents;		/* Used in scatterlist */
@@ -330,17 +330,35 @@ static int nvme_npages(unsigned size, struct nvme_dev *dev)
 	return DIV_ROUND_UP(8 * nprps, PAGE_SIZE - 8);
 }
 
-static unsigned int nvme_iod_alloc_size(struct nvme_dev *dev,
-		unsigned int size, unsigned int nseg)
+/*
+ * Calculates the number of pages needed for the SGL segments. For example a 4k
+ * page can accommodate 256 SGL descriptors.
+ */
+static int nvme_pci_npages_sgl(unsigned int num_seg)
+{
+	return DIV_ROUND_UP(num_seg * sizeof(struct nvme_sgl_desc), PAGE_SIZE);
+}
+
+static unsigned int nvme_pci_iod_alloc_size(struct nvme_dev *dev,
+		unsigned int size, unsigned int nseg, bool use_sgl)
 {
-	return sizeof(__le64 *) * nvme_npages(size, dev) +
-			sizeof(struct scatterlist) * nseg;
+	size_t alloc_size;
+
+	if (use_sgl)
+		alloc_size = sizeof(__le64 *) * nvme_pci_npages_sgl(nseg);
+	else
+		alloc_size = sizeof(__le64 *) * nvme_npages(size, dev);
+
+	return alloc_size + sizeof(struct scatterlist) * nseg;
 }
 
-static unsigned int nvme_cmd_size(struct nvme_dev *dev)
+static unsigned int nvme_pci_cmd_size(struct nvme_dev *dev, bool use_sgl)
 {
-	return sizeof(struct nvme_iod) +
-		nvme_iod_alloc_size(dev, NVME_INT_BYTES(dev), NVME_INT_PAGES);
+	unsigned int alloc_size = nvme_pci_iod_alloc_size(dev,
+				    NVME_INT_BYTES(dev), NVME_INT_PAGES,
+				    use_sgl);
+
+	return sizeof(struct nvme_iod) + alloc_size;
 }
 
 static int nvme_admin_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
@@ -424,10 +442,10 @@ static void __nvme_submit_cmd(struct nvme_queue *nvmeq,
 	nvmeq->sq_tail = tail;
 }
 
-static __le64 **iod_list(struct request *req)
+static void **nvme_pci_iod_list(struct request *req)
 {
 	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
-	return (__le64 **)(iod->sg + blk_rq_nr_phys_segments(req));
+	return (void **)(iod->sg + blk_rq_nr_phys_segments(req));
 }
 
 static blk_status_t nvme_init_iod(struct request *rq, struct nvme_dev *dev)
@@ -437,7 +455,10 @@ static blk_status_t nvme_init_iod(struct request *rq, struct nvme_dev *dev)
 	unsigned int size = blk_rq_payload_bytes(rq);
 
 	if (nseg > NVME_INT_PAGES || size > NVME_INT_BYTES(dev)) {
-		iod->sg = kmalloc(nvme_iod_alloc_size(dev, size, nseg), GFP_ATOMIC);
+		size_t alloc_size = nvme_pci_iod_alloc_size(dev, size, nseg,
+				iod->use_sgl);
+
+		iod->sg = kmalloc(alloc_size, GFP_ATOMIC);
 		if (!iod->sg)
 			return BLK_STS_RESOURCE;
 	} else {
@@ -455,18 +476,31 @@ static blk_status_t nvme_init_iod(struct request *rq, struct nvme_dev *dev)
 static void nvme_free_iod(struct nvme_dev *dev, struct request *req)
 {
 	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
-	const int last_prp = dev->ctrl.page_size / 8 - 1;
+	const int last_prp = dev->ctrl.page_size / sizeof(__le64) - 1;
+	dma_addr_t dma_addr = iod->first_dma, next_dma_addr;
+
 	int i;
-	__le64 **list = iod_list(req);
-	dma_addr_t prp_dma = iod->first_dma;
 
 	if (iod->npages == 0)
-		dma_pool_free(dev->prp_small_pool, list[0], prp_dma);
+		dma_pool_free(dev->prp_small_pool, nvme_pci_iod_list(req)[0],
+			dma_addr);
+
 	for (i = 0; i < iod->npages; i++) {
-		__le64 *prp_list = list[i];
-		dma_addr_t next_prp_dma = le64_to_cpu(prp_list[last_prp]);
-		dma_pool_free(dev->prp_page_pool, prp_list, prp_dma);
-		prp_dma = next_prp_dma;
+		void *addr = nvme_pci_iod_list(req)[i];
+
+		if (iod->use_sgl) {
+			struct nvme_sgl_desc *sg_list = addr;
+
+			next_dma_addr =
+			    le64_to_cpu((sg_list[SGES_PER_PAGE - 1]).addr);
+		} else {
+			__le64 *prp_list = addr;
+
+			next_dma_addr = le64_to_cpu(prp_list[last_prp]);
+		}
+
+		dma_pool_free(dev->prp_page_pool, addr, dma_addr);
+		dma_addr = next_dma_addr;
 	}
 
 	if (iod->sg != iod->inline_sg)
@@ -540,7 +574,22 @@ static void nvme_dif_complete(u32 p, u32 v, struct t10_pi_tuple *pi)
 }
 #endif
 
-static blk_status_t nvme_setup_prps(struct nvme_dev *dev, struct request *req)
+static void nvme_print_sgl(struct scatterlist *sgl, int nents)
+{
+	int i;
+	struct scatterlist *sg;
+
+	for_each_sg(sgl, sg, nents, i) {
+		dma_addr_t phys = sg_phys(sg);
+		pr_warn("sg[%d] phys_addr:%pad offset:%d length:%d "
+			"dma_address:%pad dma_length:%d\n",
+			i, &phys, sg->offset, sg->length, &sg_dma_address(sg),
+			sg_dma_len(sg));
+	}
+}
+
+static blk_status_t nvme_pci_setup_prps(struct nvme_dev *dev,
+		struct request *req, struct nvme_rw_command *cmnd)
 {
 	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
 	struct dma_pool *pool;
@@ -551,14 +600,16 @@ static blk_status_t nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 	u32 page_size = dev->ctrl.page_size;
 	int offset = dma_addr & (page_size - 1);
 	__le64 *prp_list;
-	__le64 **list = iod_list(req);
+	void **list = nvme_pci_iod_list(req);
 	dma_addr_t prp_dma;
 	int nprps, i;
 
+	iod->use_sgl = false;
+
 	length -= (page_size - offset);
 	if (length <= 0) {
 		iod->first_dma = 0;
-		return BLK_STS_OK;
+		goto done;
 	}
 
 	dma_len -= (page_size - offset);
@@ -572,7 +623,7 @@ static blk_status_t nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 
 	if (length <= page_size) {
 		iod->first_dma = dma_addr;
-		return BLK_STS_OK;
+		goto done;
 	}
 
 	nprps = DIV_ROUND_UP(length, page_size);
@@ -619,22 +670,121 @@ static blk_status_t nvme_setup_prps(struct nvme_dev *dev, struct request *req)
 		dma_len = sg_dma_len(sg);
 	}
 
+done:
+	cmnd->dptr.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
+	cmnd->dptr.prp2 = cpu_to_le64(iod->first_dma);
+
 	return BLK_STS_OK;
 
  bad_sgl:
-	if (WARN_ONCE(1, "Invalid SGL for payload:%d nents:%d\n",
-				blk_rq_payload_bytes(req), iod->nents)) {
-		for_each_sg(iod->sg, sg, iod->nents, i) {
-			dma_addr_t phys = sg_phys(sg);
-			pr_warn("sg[%d] phys_addr:%pad offset:%d length:%d "
-			       "dma_address:%pad dma_length:%d\n", i, &phys,
-					sg->offset, sg->length,
-					&sg_dma_address(sg),
-					sg_dma_len(sg));
-		}
-	}
+	WARN(DO_ONCE(nvme_print_sgl, iod->sg, iod->nents),
+			"Invalid SGL for payload:%d nents:%d\n",
+			blk_rq_payload_bytes(req), iod->nents);
 	return BLK_STS_IOERR;
+}
 
+static void nvme_pci_sgl_set_data(struct nvme_sgl_desc *sge,
+		struct scatterlist *sg)
+{
+	sge->addr = cpu_to_le64(sg_dma_address(sg));
+	sge->length = cpu_to_le32(sg_dma_len(sg));
+	sge->type = NVME_SGL_FMT_DATA_DESC << 4;
+}
+
+static void nvme_pci_sgl_set_seg(struct nvme_sgl_desc *sge,
+		dma_addr_t dma_addr, int entries)
+{
+	sge->addr = cpu_to_le64(dma_addr);
+	if (entries < SGES_PER_PAGE) {
+		sge->length = cpu_to_le32(entries * sizeof(*sge));
+		sge->type = NVME_SGL_FMT_LAST_SEG_DESC << 4;
+	} else {
+		sge->length = cpu_to_le32(PAGE_SIZE);
+		sge->type = NVME_SGL_FMT_SEG_DESC << 4;
+	}
+}
+
+static blk_status_t nvme_pci_setup_sgls(struct nvme_dev *dev,
+		struct request *req, struct nvme_rw_command *cmd)
+{
+	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
+	int length = blk_rq_payload_bytes(req);
+	struct dma_pool *pool;
+	struct nvme_sgl_desc *sg_list;
+	struct scatterlist *sg = iod->sg;
+	int entries = iod->nents, i = 0;
+	dma_addr_t sgl_dma;
+
+	iod->use_sgl = true;
+
+	/* setting the transfer type as SGL */
+	cmd->flags = NVME_CMD_SGL_METABUF;
+
+	if (length == sg_dma_len(sg)) {
+		nvme_pci_sgl_set_data(&cmd->dptr.sgl, sg);
+		return BLK_STS_OK;
+	}
+
+	if (entries <= (256 / sizeof(struct nvme_sgl_desc))) {
+		pool = dev->prp_small_pool;
+		iod->npages = 0;
+	} else {
+		pool = dev->prp_page_pool;
+		iod->npages = 1;
+	}
+
+	sg_list = dma_pool_alloc(pool, GFP_ATOMIC, &sgl_dma);
+	if (!sg_list) {
+		iod->npages = -1;
+		return BLK_STS_RESOURCE;
+	}
+
+	nvme_pci_iod_list(req)[0] = sg_list;
+	iod->first_dma = sgl_dma;
+
+	nvme_pci_sgl_set_seg(&cmd->dptr.sgl, sgl_dma, entries);
+
+	do {
+		if (i == SGES_PER_PAGE) {
+			struct nvme_sgl_desc *old_sg_desc = sg_list;
+			struct nvme_sgl_desc *link = &old_sg_desc[i - 1];
+
+			sg_list = dma_pool_alloc(pool, GFP_ATOMIC, &sgl_dma);
+			if (!sg_list)
+				return BLK_STS_RESOURCE;
+
+			i = 0;
+			nvme_pci_iod_list(req)[iod->npages++] = sg_list;
+			sg_list[i++] = *link;
+			nvme_pci_sgl_set_seg(link, sgl_dma, entries);
+		}
+
+		nvme_pci_sgl_set_data(&sg_list[i++], sg);
+
+		length -= sg_dma_len(sg);
+		sg = sg_next(sg);
+		entries--;
+	} while (length > 0);
+
+	WARN_ON(entries > 0);
+	return BLK_STS_OK;
+}
+
+static inline bool nvme_pci_use_sgls(struct nvme_dev *dev, struct request *req)
+{
+	struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
+	unsigned int avg_seg_size;
+
+	avg_seg_size = DIV_ROUND_UP(blk_rq_payload_bytes(req),
+			blk_rq_nr_phys_segments(req));
+
+	if (!(dev->ctrl.sgls & ((1 << 0) | (1 << 1))))
+		return false;
+	if (!iod->nvmeq->qid)
+		return false;
+	if (!sgl_threshold || avg_seg_size < sgl_threshold)
+		return false;
+	return true;
 }
 
 static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
@@ -656,7 +806,11 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
 				DMA_ATTR_NO_WARN))
 		goto out;
 
-	ret = nvme_setup_prps(dev, req);
+	if (nvme_pci_use_sgls(dev, req))
+		ret = nvme_pci_setup_sgls(dev, req, &cmnd->rw);
+	else
+		ret = nvme_pci_setup_prps(dev, req, &cmnd->rw);
+
 	if (ret != BLK_STS_OK)
 		goto out_unmap;
 
@@ -676,8 +830,6 @@ static blk_status_t nvme_map_data(struct nvme_dev *dev, struct request *req,
 			goto out_unmap;
 	}
 
-	cmnd->rw.dptr.prp1 = cpu_to_le64(sg_dma_address(iod->sg));
-	cmnd->rw.dptr.prp2 = cpu_to_le64(iod->first_dma);
 	if (blk_integrity_rq(req))
 		cmnd->rw.metadata = cpu_to_le64(sg_dma_address(&iod->meta_sg));
 	return BLK_STS_OK;
@@ -798,7 +950,7 @@ static inline void nvme_handle_cqe(struct nvme_queue *nvmeq,
 	 * for them but rather special case them here.
 	 */
 	if (unlikely(nvmeq->qid == 0 &&
-			cqe->command_id >= NVME_AQ_BLKMQ_DEPTH)) {
+			cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
 		nvme_complete_async_event(&nvmeq->dev->ctrl,
 				cqe->status, &cqe->result);
 		return;
@@ -891,7 +1043,7 @@ static int nvme_poll(struct blk_mq_hw_ctx *hctx, unsigned int tag)
 	return __nvme_poll(nvmeq, tag);
 }
 
-static void nvme_pci_submit_async_event(struct nvme_ctrl *ctrl, int aer_idx)
+static void nvme_pci_submit_async_event(struct nvme_ctrl *ctrl)
 {
 	struct nvme_dev *dev = to_nvme_dev(ctrl);
 	struct nvme_queue *nvmeq = dev->queues[0];
@@ -899,7 +1051,7 @@ static void nvme_pci_submit_async_event(struct nvme_ctrl *ctrl, int aer_idx)
 
 	memset(&c, 0, sizeof(c));
 	c.common.opcode = nvme_admin_async_event;
-	c.common.command_id = NVME_AQ_BLKMQ_DEPTH + aer_idx;
+	c.common.command_id = NVME_AQ_BLK_MQ_DEPTH;
 
 	spin_lock_irq(&nvmeq->q_lock);
 	__nvme_submit_cmd(nvmeq, &c);
@@ -924,7 +1076,7 @@ static int adapter_alloc_cq(struct nvme_dev *dev, u16 qid,
 	int flags = NVME_QUEUE_PHYS_CONTIG | NVME_CQ_IRQ_ENABLED;
 
 	/*
-	 * Note: we (ab)use the fact the the prp fields survive if no data
+	 * Note: we (ab)use the fact that the prp fields survive if no data
 	 * is attached to the request.
 	 */
 	memset(&c, 0, sizeof(c));
@@ -945,7 +1097,7 @@ static int adapter_alloc_sq(struct nvme_dev *dev, u16 qid,
 	int flags = NVME_QUEUE_PHYS_CONTIG;
 
 	/*
-	 * Note: we (ab)use the fact the the prp fields survive if no data
+	 * Note: we (ab)use the fact that the prp fields survive if no data
 	 * is attached to the request.
 	 */
 	memset(&c, 0, sizeof(c));
@@ -1220,7 +1372,7 @@ static int nvme_alloc_sq_cmds(struct nvme_dev *dev, struct nvme_queue *nvmeq,
 	if (qid && dev->cmb && use_cmb_sqes && NVME_CMB_SQS(dev->cmbsz)) {
 		unsigned offset = (qid - 1) * roundup(SQ_SIZE(depth),
 						      dev->ctrl.page_size);
-		nvmeq->sq_dma_addr = dev->cmb_dma_addr + offset;
+		nvmeq->sq_dma_addr = dev->cmb_bus_addr + offset;
 		nvmeq->sq_cmds_io = dev->cmb + offset;
 	} else {
 		nvmeq->sq_cmds = dma_alloc_coherent(dev->dev, SQ_SIZE(depth),
@@ -1313,11 +1465,11 @@ static int nvme_create_queue(struct nvme_queue *nvmeq, int qid)
 	if (result < 0)
 		goto release_cq;
 
+	nvme_init_queue(nvmeq, qid);
 	result = queue_request_irq(nvmeq);
 	if (result < 0)
 		goto release_sq;
 
-	nvme_init_queue(nvmeq, qid);
 	return result;
 
  release_sq:
@@ -1366,14 +1518,10 @@ static int nvme_alloc_admin_tags(struct nvme_dev *dev)
 		dev->admin_tagset.ops = &nvme_mq_admin_ops;
 		dev->admin_tagset.nr_hw_queues = 1;
 
-		/*
-		 * Subtract one to leave an empty queue entry for 'Full Queue'
-		 * condition. See NVM-Express 1.2 specification, section 4.1.2.
-		 */
-		dev->admin_tagset.queue_depth = NVME_AQ_BLKMQ_DEPTH - 1;
+		dev->admin_tagset.queue_depth = NVME_AQ_MQ_TAG_DEPTH;
 		dev->admin_tagset.timeout = ADMIN_TIMEOUT;
 		dev->admin_tagset.numa_node = dev_to_node(dev->dev);
-		dev->admin_tagset.cmd_size = nvme_cmd_size(dev);
+		dev->admin_tagset.cmd_size = nvme_pci_cmd_size(dev, false);
 		dev->admin_tagset.flags = BLK_MQ_F_NO_SCHED;
 		dev->admin_tagset.driver_data = dev;
 
@@ -1464,6 +1612,7 @@ static int nvme_pci_configure_admin_queue(struct nvme_dev *dev)
 		return result;
 
 	nvmeq->cq_vector = 0;
+	nvme_init_queue(nvmeq, 0);
 	result = queue_request_irq(nvmeq);
 	if (result) {
 		nvmeq->cq_vector = -1;
@@ -1520,7 +1669,7 @@ static void __iomem *nvme_map_cmb(struct nvme_dev *dev)
 	resource_size_t bar_size;
 	struct pci_dev *pdev = to_pci_dev(dev->dev);
 	void __iomem *cmb;
-	dma_addr_t dma_addr;
+	int bar;
 
 	dev->cmbsz = readl(dev->bar + NVME_REG_CMBSZ);
 	if (!(NVME_CMB_SZ(dev->cmbsz)))
@@ -1533,7 +1682,8 @@ static void __iomem *nvme_map_cmb(struct nvme_dev *dev)
 	szu = (u64)1 << (12 + 4 * NVME_CMB_SZU(dev->cmbsz));
 	size = szu * NVME_CMB_SZ(dev->cmbsz);
 	offset = szu * NVME_CMB_OFST(dev->cmbloc);
-	bar_size = pci_resource_len(pdev, NVME_CMB_BIR(dev->cmbloc));
+	bar = NVME_CMB_BIR(dev->cmbloc);
+	bar_size = pci_resource_len(pdev, bar);
 
 	if (offset > bar_size)
 		return NULL;
@@ -1546,12 +1696,11 @@ static void __iomem *nvme_map_cmb(struct nvme_dev *dev)
 	if (size > bar_size - offset)
 		size = bar_size - offset;
 
-	dma_addr = pci_resource_start(pdev, NVME_CMB_BIR(dev->cmbloc)) + offset;
-	cmb = ioremap_wc(dma_addr, size);
+	cmb = ioremap_wc(pci_resource_start(pdev, bar) + offset, size);
 	if (!cmb)
 		return NULL;
 
-	dev->cmb_dma_addr = dma_addr;
+	dev->cmb_bus_addr = pci_bus_address(pdev, bar) + offset;
 	dev->cmb_size = size;
 	return cmb;
 }
@@ -1899,7 +2048,11 @@ static int nvme_dev_add(struct nvme_dev *dev)
 		dev->tagset.numa_node = dev_to_node(dev->dev);
 		dev->tagset.queue_depth =
 				min_t(int, dev->q_depth, BLK_MQ_MAX_DEPTH) - 1;
-		dev->tagset.cmd_size = nvme_cmd_size(dev);
+		dev->tagset.cmd_size = nvme_pci_cmd_size(dev, false);
+		if ((dev->ctrl.sgls & ((1 << 0) | (1 << 1))) && sgl_threshold) {
+			dev->tagset.cmd_size = max(dev->tagset.cmd_size,
+					nvme_pci_cmd_size(dev, true));
+		}
 		dev->tagset.flags = BLK_MQ_F_SHOULD_MERGE;
 		dev->tagset.driver_data = dev;
 
@@ -2125,9 +2278,9 @@ static void nvme_remove_dead_ctrl(struct nvme_dev *dev, int status)
 {
 	dev_warn(dev->ctrl.device, "Removing after probe failure status: %d\n", status);
 
-	kref_get(&dev->ctrl.kref);
+	nvme_get_ctrl(&dev->ctrl);
 	nvme_dev_disable(dev, false);
-	if (!schedule_work(&dev->remove_work))
+	if (!queue_work(nvme_wq, &dev->remove_work))
 		nvme_put_ctrl(&dev->ctrl);
 }
 
@@ -2156,7 +2309,6 @@ static void nvme_reset_work(struct work_struct *work)
 	if (result)
 		goto out;
 
-	nvme_init_queue(dev->queues[0], 0);
 	result = nvme_alloc_admin_tags(dev);
 	if (result)
 		goto out;
@@ -2551,6 +2703,7 @@ static int __init nvme_init(void)
 static void __exit nvme_exit(void)
 {
 	pci_unregister_driver(&nvme_driver);
+	flush_workqueue(nvme_wq);
 	_nvme_check_size();
 }
 
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 58983000964b..4f9bf2f815c3 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -41,17 +41,9 @@
 
 #define NVME_RDMA_MAX_INLINE_SEGMENTS	1
 
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_RDMA_NR_AEN_COMMANDS      1
-#define NVME_RDMA_AQ_BLKMQ_DEPTH       \
-	(NVME_AQ_DEPTH - NVME_RDMA_NR_AEN_COMMANDS)
-
 struct nvme_rdma_device {
-	struct ib_device       *dev;
-	struct ib_pd	       *pd;
+	struct ib_device	*dev;
+	struct ib_pd		*pd;
 	struct kref		ref;
 	struct list_head	entry;
 };
@@ -79,8 +71,8 @@ struct nvme_rdma_request {
 };
 
 enum nvme_rdma_queue_flags {
-	NVME_RDMA_Q_LIVE		= 0,
-	NVME_RDMA_Q_DELETING		= 1,
+	NVME_RDMA_Q_ALLOCATED		= 0,
+	NVME_RDMA_Q_LIVE		= 1,
 };
 
 struct nvme_rdma_queue {
@@ -105,7 +97,6 @@ struct nvme_rdma_ctrl {
 
 	/* other member variables */
 	struct blk_mq_tag_set	tag_set;
-	struct work_struct	delete_work;
 	struct work_struct	err_work;
 
 	struct nvme_rdma_qe	async_event_sqe;
@@ -274,6 +265,9 @@ static int nvme_rdma_reinit_request(void *data, struct request *rq)
 	struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);
 	int ret = 0;
 
+	if (WARN_ON_ONCE(!req->mr))
+		return 0;
+
 	ib_dereg_mr(req->mr);
 
 	req->mr = ib_alloc_mr(dev->pd, IB_MR_TYPE_MEM_REG,
@@ -434,11 +428,9 @@ out_err:
 
 static void nvme_rdma_destroy_queue_ib(struct nvme_rdma_queue *queue)
 {
-	struct nvme_rdma_device *dev;
-	struct ib_device *ibdev;
+	struct nvme_rdma_device *dev = queue->device;
+	struct ib_device *ibdev = dev->dev;
 
-	dev = queue->device;
-	ibdev = dev->dev;
 	rdma_destroy_qp(queue->cm_id);
 	ib_free_cq(queue->ib_cq);
 
@@ -493,7 +485,7 @@ static int nvme_rdma_create_queue_ib(struct nvme_rdma_queue *queue)
 	return 0;
 
 out_destroy_qp:
-	ib_destroy_qp(queue->qp);
+	rdma_destroy_qp(queue->cm_id);
 out_destroy_ib_cq:
 	ib_free_cq(queue->ib_cq);
 out_put_dev:
@@ -544,11 +536,11 @@ static int nvme_rdma_alloc_queue(struct nvme_rdma_ctrl *ctrl,
 	ret = nvme_rdma_wait_for_cm(queue);
 	if (ret) {
 		dev_info(ctrl->ctrl.device,
-			"rdma_resolve_addr wait failed (%d).\n", ret);
+			"rdma connection establishment failed (%d)\n", ret);
 		goto out_destroy_cm_id;
 	}
 
-	clear_bit(NVME_RDMA_Q_DELETING, &queue->flags);
+	set_bit(NVME_RDMA_Q_ALLOCATED, &queue->flags);
 
 	return 0;
 
@@ -568,9 +560,15 @@ static void nvme_rdma_stop_queue(struct nvme_rdma_queue *queue)
 
 static void nvme_rdma_free_queue(struct nvme_rdma_queue *queue)
 {
-	if (test_and_set_bit(NVME_RDMA_Q_DELETING, &queue->flags))
+	if (!test_and_clear_bit(NVME_RDMA_Q_ALLOCATED, &queue->flags))
 		return;
 
+	if (nvme_rdma_queue_idx(queue) == 0) {
+		nvme_rdma_free_qe(queue->device->dev,
+			&queue->ctrl->async_event_sqe,
+			sizeof(struct nvme_command), DMA_TO_DEVICE);
+	}
+
 	nvme_rdma_destroy_queue_ib(queue);
 	rdma_destroy_id(queue->cm_id);
 }
@@ -670,11 +668,10 @@ out_free_queues:
 	return ret;
 }
 
-static void nvme_rdma_free_tagset(struct nvme_ctrl *nctrl, bool admin)
+static void nvme_rdma_free_tagset(struct nvme_ctrl *nctrl,
+		struct blk_mq_tag_set *set)
 {
 	struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
-	struct blk_mq_tag_set *set = admin ?
-			&ctrl->admin_tag_set : &ctrl->tag_set;
 
 	blk_mq_free_tag_set(set);
 	nvme_rdma_dev_put(ctrl->device);
@@ -691,7 +688,7 @@ static struct blk_mq_tag_set *nvme_rdma_alloc_tagset(struct nvme_ctrl *nctrl,
 		set = &ctrl->admin_tag_set;
 		memset(set, 0, sizeof(*set));
 		set->ops = &nvme_rdma_admin_mq_ops;
-		set->queue_depth = NVME_RDMA_AQ_BLKMQ_DEPTH;
+		set->queue_depth = NVME_AQ_MQ_TAG_DEPTH;
 		set->reserved_tags = 2; /* connect + keep-alive */
 		set->numa_node = NUMA_NO_NODE;
 		set->cmd_size = sizeof(struct nvme_rdma_request) +
@@ -699,6 +696,7 @@ static struct blk_mq_tag_set *nvme_rdma_alloc_tagset(struct nvme_ctrl *nctrl,
 		set->driver_data = ctrl;
 		set->nr_hw_queues = 1;
 		set->timeout = ADMIN_TIMEOUT;
+		set->flags = BLK_MQ_F_NO_SCHED;
 	} else {
 		set = &ctrl->tag_set;
 		memset(set, 0, sizeof(*set));
@@ -739,12 +737,10 @@ out:
 static void nvme_rdma_destroy_admin_queue(struct nvme_rdma_ctrl *ctrl,
 		bool remove)
 {
-	nvme_rdma_free_qe(ctrl->queues[0].device->dev, &ctrl->async_event_sqe,
-			sizeof(struct nvme_command), DMA_TO_DEVICE);
 	nvme_rdma_stop_queue(&ctrl->queues[0]);
 	if (remove) {
 		blk_cleanup_queue(ctrl->ctrl.admin_q);
-		nvme_rdma_free_tagset(&ctrl->ctrl, true);
+		nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.admin_tagset);
 	}
 	nvme_rdma_free_queue(&ctrl->queues[0]);
 }
@@ -765,8 +761,10 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
 
 	if (new) {
 		ctrl->ctrl.admin_tagset = nvme_rdma_alloc_tagset(&ctrl->ctrl, true);
-		if (IS_ERR(ctrl->ctrl.admin_tagset))
+		if (IS_ERR(ctrl->ctrl.admin_tagset)) {
+			error = PTR_ERR(ctrl->ctrl.admin_tagset);
 			goto out_free_queue;
+		}
 
 		ctrl->ctrl.admin_q = blk_mq_init_queue(&ctrl->admin_tag_set);
 		if (IS_ERR(ctrl->ctrl.admin_q)) {
@@ -774,8 +772,7 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
 			goto out_free_tagset;
 		}
 	} else {
-		error = blk_mq_reinit_tagset(&ctrl->admin_tag_set,
-					     nvme_rdma_reinit_request);
+		error = nvme_reinit_tagset(&ctrl->ctrl, ctrl->ctrl.admin_tagset);
 		if (error)
 			goto out_free_queue;
 	}
@@ -819,7 +816,7 @@ out_cleanup_queue:
 		blk_cleanup_queue(ctrl->ctrl.admin_q);
 out_free_tagset:
 	if (new)
-		nvme_rdma_free_tagset(&ctrl->ctrl, true);
+		nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.admin_tagset);
 out_free_queue:
 	nvme_rdma_free_queue(&ctrl->queues[0]);
 	return error;
@@ -831,7 +828,7 @@ static void nvme_rdma_destroy_io_queues(struct nvme_rdma_ctrl *ctrl,
 	nvme_rdma_stop_io_queues(ctrl);
 	if (remove) {
 		blk_cleanup_queue(ctrl->ctrl.connect_q);
-		nvme_rdma_free_tagset(&ctrl->ctrl, false);
+		nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
 	}
 	nvme_rdma_free_io_queues(ctrl);
 }
@@ -846,8 +843,10 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
 
 	if (new) {
 		ctrl->ctrl.tagset = nvme_rdma_alloc_tagset(&ctrl->ctrl, false);
-		if (IS_ERR(ctrl->ctrl.tagset))
+		if (IS_ERR(ctrl->ctrl.tagset)) {
+			ret = PTR_ERR(ctrl->ctrl.tagset);
 			goto out_free_io_queues;
+		}
 
 		ctrl->ctrl.connect_q = blk_mq_init_queue(&ctrl->tag_set);
 		if (IS_ERR(ctrl->ctrl.connect_q)) {
@@ -855,8 +854,7 @@ static int nvme_rdma_configure_io_queues(struct nvme_rdma_ctrl *ctrl, bool new)
 			goto out_free_tag_set;
 		}
 	} else {
-		ret = blk_mq_reinit_tagset(&ctrl->tag_set,
-					   nvme_rdma_reinit_request);
+		ret = nvme_reinit_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
 		if (ret)
 			goto out_free_io_queues;
 
@@ -875,7 +873,7 @@ out_cleanup_connect_q:
 		blk_cleanup_queue(ctrl->ctrl.connect_q);
 out_free_tag_set:
 	if (new)
-		nvme_rdma_free_tagset(&ctrl->ctrl, false);
+		nvme_rdma_free_tagset(&ctrl->ctrl, ctrl->ctrl.tagset);
 out_free_io_queues:
 	nvme_rdma_free_io_queues(ctrl);
 	return ret;
@@ -914,7 +912,7 @@ static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl)
 				ctrl->ctrl.opts->reconnect_delay * HZ);
 	} else {
 		dev_info(ctrl->ctrl.device, "Removing controller...\n");
-		queue_work(nvme_wq, &ctrl->delete_work);
+		nvme_delete_ctrl(&ctrl->ctrl);
 	}
 }
 
@@ -927,10 +925,6 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
 
 	++ctrl->ctrl.nr_reconnects;
 
-	if (ctrl->ctrl.queue_count > 1)
-		nvme_rdma_destroy_io_queues(ctrl, false);
-
-	nvme_rdma_destroy_admin_queue(ctrl, false);
 	ret = nvme_rdma_configure_admin_queue(ctrl, false);
 	if (ret)
 		goto requeue;
@@ -938,19 +932,27 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
 	if (ctrl->ctrl.queue_count > 1) {
 		ret = nvme_rdma_configure_io_queues(ctrl, false);
 		if (ret)
-			goto requeue;
+			goto destroy_admin;
 	}
 
 	changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
-	WARN_ON_ONCE(!changed);
-	ctrl->ctrl.nr_reconnects = 0;
+	if (!changed) {
+		/* state change failure is ok if we're in DELETING state */
+		WARN_ON_ONCE(ctrl->ctrl.state != NVME_CTRL_DELETING);
+		return;
+	}
 
 	nvme_start_ctrl(&ctrl->ctrl);
 
-	dev_info(ctrl->ctrl.device, "Successfully reconnected\n");
+	dev_info(ctrl->ctrl.device, "Successfully reconnected (%d attempts)\n",
+			ctrl->ctrl.nr_reconnects);
+
+	ctrl->ctrl.nr_reconnects = 0;
 
 	return;
 
+destroy_admin:
+	nvme_rdma_destroy_admin_queue(ctrl, false);
 requeue:
 	dev_info(ctrl->ctrl.device, "Failed reconnect attempt %d\n",
 			ctrl->ctrl.nr_reconnects);
@@ -962,21 +964,19 @@ static void nvme_rdma_error_recovery_work(struct work_struct *work)
 	struct nvme_rdma_ctrl *ctrl = container_of(work,
 			struct nvme_rdma_ctrl, err_work);
 
-	nvme_stop_ctrl(&ctrl->ctrl);
+	nvme_stop_keep_alive(&ctrl->ctrl);
 
 	if (ctrl->ctrl.queue_count > 1) {
 		nvme_stop_queues(&ctrl->ctrl);
-		nvme_rdma_stop_io_queues(ctrl);
-	}
-	blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
-	nvme_rdma_stop_queue(&ctrl->queues[0]);
-
-	/* We must take care of fastfail/requeue all our inflight requests */
-	if (ctrl->ctrl.queue_count > 1)
 		blk_mq_tagset_busy_iter(&ctrl->tag_set,
 					nvme_cancel_request, &ctrl->ctrl);
+		nvme_rdma_destroy_io_queues(ctrl, false);
+	}
+
+	blk_mq_quiesce_queue(ctrl->ctrl.admin_q);
 	blk_mq_tagset_busy_iter(&ctrl->admin_tag_set,
 				nvme_cancel_request, &ctrl->ctrl);
+	nvme_rdma_destroy_admin_queue(ctrl, false);
 
 	/*
 	 * queues are not a live anymore, so restart the queues to fail fast
@@ -1052,7 +1052,7 @@ static void nvme_rdma_unmap_data(struct nvme_rdma_queue *queue,
 	if (!blk_rq_bytes(rq))
 		return;
 
-	if (req->mr->need_inval) {
+	if (req->mr->need_inval && test_bit(NVME_RDMA_Q_LIVE, &req->queue->flags)) {
 		res = nvme_rdma_inv_rkey(queue, req);
 		if (unlikely(res < 0)) {
 			dev_err(ctrl->ctrl.device,
@@ -1301,7 +1301,7 @@ static struct blk_mq_tags *nvme_rdma_tagset(struct nvme_rdma_queue *queue)
 	return queue->ctrl->tag_set.tags[queue_idx - 1];
 }
 
-static void nvme_rdma_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
+static void nvme_rdma_submit_async_event(struct nvme_ctrl *arg)
 {
 	struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(arg);
 	struct nvme_rdma_queue *queue = &ctrl->queues[0];
@@ -1311,14 +1311,11 @@ static void nvme_rdma_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
 	struct ib_sge sge;
 	int ret;
 
-	if (WARN_ON_ONCE(aer_idx != 0))
-		return;
-
 	ib_dma_sync_single_for_cpu(dev, sqe->dma, sizeof(*cmd), DMA_TO_DEVICE);
 
 	memset(cmd, 0, sizeof(*cmd));
 	cmd->common.opcode = nvme_admin_async_event;
-	cmd->common.command_id = NVME_RDMA_AQ_BLKMQ_DEPTH;
+	cmd->common.command_id = NVME_AQ_BLK_MQ_DEPTH;
 	cmd->common.flags |= NVME_CMD_SGL_METABUF;
 	nvme_rdma_set_sg_null(cmd);
 
@@ -1380,7 +1377,7 @@ static int __nvme_rdma_recv_done(struct ib_cq *cq, struct ib_wc *wc, int tag)
 	 * for them but rather special case them here.
 	 */
 	if (unlikely(nvme_rdma_queue_idx(queue) == 0 &&
-			cqe->command_id >= NVME_RDMA_AQ_BLKMQ_DEPTH))
+			cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH))
 		nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
 				&cqe->result);
 	else
@@ -1577,6 +1574,10 @@ nvme_rdma_timeout(struct request *rq, bool reserved)
 {
 	struct nvme_rdma_request *req = blk_mq_rq_to_pdu(rq);
 
+	dev_warn(req->queue->ctrl->ctrl.device,
+		 "I/O %d QID %d timeout, reset controller\n",
+		 rq->tag, nvme_rdma_queue_idx(req->queue));
+
 	/* queue error recovery */
 	nvme_rdma_error_recovery(req->queue->ctrl);
 
@@ -1601,12 +1602,15 @@ nvme_rdma_queue_is_ready(struct nvme_rdma_queue *queue, struct request *rq)
 			/*
 			 * reconnecting state means transport disruption, which
 			 * can take a long time and even might fail permanently,
-			 * so we can't let incoming I/O be requeued forever.
-			 * fail it fast to allow upper layers a chance to
-			 * failover.
+			 * fail fast to give upper layers a chance to failover.
+			 * deleting state means that the ctrl will never accept
+			 * commands again, fail it permanently.
 			 */
-			if (queue->ctrl->ctrl.state == NVME_CTRL_RECONNECTING)
+			if (queue->ctrl->ctrl.state == NVME_CTRL_RECONNECTING ||
+			    queue->ctrl->ctrl.state == NVME_CTRL_DELETING) {
+				nvme_req(rq)->status = NVME_SC_ABORT_REQ;
 				return BLK_STS_IOERR;
+			}
 			return BLK_STS_RESOURCE; /* try again later */
 		}
 	}
@@ -1751,50 +1755,9 @@ static void nvme_rdma_shutdown_ctrl(struct nvme_rdma_ctrl *ctrl, bool shutdown)
 	nvme_rdma_destroy_admin_queue(ctrl, shutdown);
 }
 
-static void nvme_rdma_remove_ctrl(struct nvme_rdma_ctrl *ctrl)
-{
-	nvme_remove_namespaces(&ctrl->ctrl);
-	nvme_rdma_shutdown_ctrl(ctrl, true);
-	nvme_uninit_ctrl(&ctrl->ctrl);
-	nvme_put_ctrl(&ctrl->ctrl);
-}
-
-static void nvme_rdma_del_ctrl_work(struct work_struct *work)
+static void nvme_rdma_delete_ctrl(struct nvme_ctrl *ctrl)
 {
-	struct nvme_rdma_ctrl *ctrl = container_of(work,
-				struct nvme_rdma_ctrl, delete_work);
-
-	nvme_stop_ctrl(&ctrl->ctrl);
-	nvme_rdma_remove_ctrl(ctrl);
-}
-
-static int __nvme_rdma_del_ctrl(struct nvme_rdma_ctrl *ctrl)
-{
-	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING))
-		return -EBUSY;
-
-	if (!queue_work(nvme_wq, &ctrl->delete_work))
-		return -EBUSY;
-
-	return 0;
-}
-
-static int nvme_rdma_del_ctrl(struct nvme_ctrl *nctrl)
-{
-	struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
-	int ret = 0;
-
-	/*
-	 * Keep a reference until all work is flushed since
-	 * __nvme_rdma_del_ctrl can free the ctrl mem
-	 */
-	if (!kref_get_unless_zero(&ctrl->ctrl.kref))
-		return -EBUSY;
-	ret = __nvme_rdma_del_ctrl(ctrl);
-	if (!ret)
-		flush_work(&ctrl->delete_work);
-	nvme_put_ctrl(&ctrl->ctrl);
-	return ret;
+	nvme_rdma_shutdown_ctrl(to_rdma_ctrl(ctrl), true);
 }
 
 static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
@@ -1818,7 +1781,11 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
 	}
 
 	changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
-	WARN_ON_ONCE(!changed);
+	if (!changed) {
+		/* state change failure is ok if we're in DELETING state */
+		WARN_ON_ONCE(ctrl->ctrl.state != NVME_CTRL_DELETING);
+		return;
+	}
 
 	nvme_start_ctrl(&ctrl->ctrl);
 
@@ -1826,7 +1793,10 @@ static void nvme_rdma_reset_ctrl_work(struct work_struct *work)
 
 out_fail:
 	dev_warn(ctrl->ctrl.device, "Removing after reset failure\n");
-	nvme_rdma_remove_ctrl(ctrl);
+	nvme_remove_namespaces(&ctrl->ctrl);
+	nvme_rdma_shutdown_ctrl(ctrl, true);
+	nvme_uninit_ctrl(&ctrl->ctrl);
+	nvme_put_ctrl(&ctrl->ctrl);
 }
 
 static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = {
@@ -1838,10 +1808,88 @@ static const struct nvme_ctrl_ops nvme_rdma_ctrl_ops = {
 	.reg_write32		= nvmf_reg_write32,
 	.free_ctrl		= nvme_rdma_free_ctrl,
 	.submit_async_event	= nvme_rdma_submit_async_event,
-	.delete_ctrl		= nvme_rdma_del_ctrl,
+	.delete_ctrl		= nvme_rdma_delete_ctrl,
 	.get_address		= nvmf_get_address,
+	.reinit_request		= nvme_rdma_reinit_request,
 };
 
+static inline bool
+__nvme_rdma_options_match(struct nvme_rdma_ctrl *ctrl,
+	struct nvmf_ctrl_options *opts)
+{
+	char *stdport = __stringify(NVME_RDMA_IP_PORT);
+
+
+	if (!nvmf_ctlr_matches_baseopts(&ctrl->ctrl, opts) ||
+	    strcmp(opts->traddr, ctrl->ctrl.opts->traddr))
+		return false;
+
+	if (opts->mask & NVMF_OPT_TRSVCID &&
+	    ctrl->ctrl.opts->mask & NVMF_OPT_TRSVCID) {
+		if (strcmp(opts->trsvcid, ctrl->ctrl.opts->trsvcid))
+			return false;
+	} else if (opts->mask & NVMF_OPT_TRSVCID) {
+		if (strcmp(opts->trsvcid, stdport))
+			return false;
+	} else if (ctrl->ctrl.opts->mask & NVMF_OPT_TRSVCID) {
+		if (strcmp(stdport, ctrl->ctrl.opts->trsvcid))
+			return false;
+	}
+	/* else, it's a match as both have stdport. Fall to next checks */
+
+	/*
+	 * checking the local address is rough. In most cases, one
+	 * is not specified and the host port is selected by the stack.
+	 *
+	 * Assume no match if:
+	 *  local address is specified and address is not the same
+	 *  local address is not specified but remote is, or vice versa
+	 *    (admin using specific host_traddr when it matters).
+	 */
+	if (opts->mask & NVMF_OPT_HOST_TRADDR &&
+	    ctrl->ctrl.opts->mask & NVMF_OPT_HOST_TRADDR) {
+		if (strcmp(opts->host_traddr, ctrl->ctrl.opts->host_traddr))
+			return false;
+	} else if (opts->mask & NVMF_OPT_HOST_TRADDR ||
+		   ctrl->ctrl.opts->mask & NVMF_OPT_HOST_TRADDR)
+		return false;
+	/*
+	 * if neither controller had an host port specified, assume it's
+	 * a match as everything else matched.
+	 */
+
+	return true;
+}
+
+/*
+ * Fails a connection request if it matches an existing controller
+ * (association) with the same tuple:
+ * <Host NQN, Host ID, local address, remote address, remote port, SUBSYS NQN>
+ *
+ * if local address is not specified in the request, it will match an
+ * existing controller with all the other parameters the same and no
+ * local port address specified as well.
+ *
+ * The ports don't need to be compared as they are intrinsically
+ * already matched by the port pointers supplied.
+ */
+static bool
+nvme_rdma_existing_controller(struct nvmf_ctrl_options *opts)
+{
+	struct nvme_rdma_ctrl *ctrl;
+	bool found = false;
+
+	mutex_lock(&nvme_rdma_ctrl_mutex);
+	list_for_each_entry(ctrl, &nvme_rdma_ctrl_list, list) {
+		found = __nvme_rdma_options_match(ctrl, opts);
+		if (found)
+			break;
+	}
+	mutex_unlock(&nvme_rdma_ctrl_mutex);
+
+	return found;
+}
+
 static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
 		struct nvmf_ctrl_options *opts)
 {
@@ -1878,6 +1926,11 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
 		}
 	}
 
+	if (!opts->duplicate_connect && nvme_rdma_existing_controller(opts)) {
+		ret = -EALREADY;
+		goto out_free_ctrl;
+	}
+
 	ret = nvme_init_ctrl(&ctrl->ctrl, dev, &nvme_rdma_ctrl_ops,
 				0 /* no quirks, we're perfect! */);
 	if (ret)
@@ -1886,7 +1939,6 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
 	INIT_DELAYED_WORK(&ctrl->reconnect_work,
 			nvme_rdma_reconnect_ctrl_work);
 	INIT_WORK(&ctrl->err_work, nvme_rdma_error_recovery_work);
-	INIT_WORK(&ctrl->delete_work, nvme_rdma_del_ctrl_work);
 	INIT_WORK(&ctrl->ctrl.reset_work, nvme_rdma_reset_ctrl_work);
 
 	ctrl->ctrl.queue_count = opts->nr_io_queues + 1; /* +1 for admin queue */
@@ -1945,7 +1997,7 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
 	dev_info(ctrl->ctrl.device, "new ctrl: NQN \"%s\", addr %pISpcs\n",
 		ctrl->ctrl.opts->subsysnqn, &ctrl->addr);
 
-	kref_get(&ctrl->ctrl.kref);
+	nvme_get_ctrl(&ctrl->ctrl);
 
 	mutex_lock(&nvme_rdma_ctrl_mutex);
 	list_add_tail(&ctrl->list, &nvme_rdma_ctrl_list);
@@ -1990,7 +2042,7 @@ static void nvme_rdma_remove_one(struct ib_device *ib_device, void *client_data)
 		dev_info(ctrl->ctrl.device,
 			"Removing ctrl: NQN \"%s\", addr %pISp\n",
 			ctrl->ctrl.opts->subsysnqn, &ctrl->addr);
-		__nvme_rdma_del_ctrl(ctrl);
+		nvme_delete_ctrl(&ctrl->ctrl);
 	}
 	mutex_unlock(&nvme_rdma_ctrl_mutex);
 
diff --git a/drivers/nvme/target/Makefile b/drivers/nvme/target/Makefile
index fecc14f535b2..488250189c99 100644
--- a/drivers/nvme/target/Makefile
+++ b/drivers/nvme/target/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_NVME_TARGET)		+= nvmet.o
 obj-$(CONFIG_NVME_TARGET_LOOP)		+= nvme-loop.o
diff --git a/drivers/nvme/target/admin-cmd.c b/drivers/nvme/target/admin-cmd.c
index c4a0bf36e752..90dcdc40ac71 100644
--- a/drivers/nvme/target/admin-cmd.c
+++ b/drivers/nvme/target/admin-cmd.c
@@ -35,17 +35,14 @@ u32 nvmet_get_log_page_len(struct nvme_command *cmd)
 static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req,
 		struct nvme_smart_log *slog)
 {
-	u16 status;
 	struct nvmet_ns *ns;
 	u64 host_reads, host_writes, data_units_read, data_units_written;
 
-	status = NVME_SC_SUCCESS;
 	ns = nvmet_find_namespace(req->sq->ctrl, req->cmd->get_log_page.nsid);
 	if (!ns) {
-		status = NVME_SC_INVALID_NS;
 		pr_err("nvmet : Could not find namespace id : %d\n",
 				le32_to_cpu(req->cmd->get_log_page.nsid));
-		goto out;
+		return NVME_SC_INVALID_NS;
 	}
 
 	host_reads = part_stat_read(ns->bdev->bd_part, ios[READ]);
@@ -58,20 +55,18 @@ static u16 nvmet_get_smart_log_nsid(struct nvmet_req *req,
 	put_unaligned_le64(host_writes, &slog->host_writes[0]);
 	put_unaligned_le64(data_units_written, &slog->data_units_written[0]);
 	nvmet_put_namespace(ns);
-out:
-	return status;
+
+	return NVME_SC_SUCCESS;
 }
 
 static u16 nvmet_get_smart_log_all(struct nvmet_req *req,
 		struct nvme_smart_log *slog)
 {
-	u16 status;
 	u64 host_reads = 0, host_writes = 0;
 	u64 data_units_read = 0, data_units_written = 0;
 	struct nvmet_ns *ns;
 	struct nvmet_ctrl *ctrl;
 
-	status = NVME_SC_SUCCESS;
 	ctrl = req->sq->ctrl;
 
 	rcu_read_lock();
@@ -91,7 +86,7 @@ static u16 nvmet_get_smart_log_all(struct nvmet_req *req,
 	put_unaligned_le64(host_writes, &slog->host_writes[0]);
 	put_unaligned_le64(data_units_written, &slog->data_units_written[0]);
 
-	return status;
+	return NVME_SC_SUCCESS;
 }
 
 static u16 nvmet_get_smart_log(struct nvmet_req *req,
@@ -144,10 +139,8 @@ static void nvmet_execute_get_log_page(struct nvmet_req *req)
 		}
 		smart_log = buf;
 		status = nvmet_get_smart_log(req, smart_log);
-		if (status) {
-			memset(buf, '\0', data_len);
+		if (status)
 			goto err;
-		}
 		break;
 	case NVME_LOG_FW_SLOT:
 		/*
@@ -300,7 +293,7 @@ static void nvmet_execute_identify_ns(struct nvmet_req *req)
 	}
 
 	/*
-	 * nuse = ncap = nsze isn't aways true, but we have no way to find
+	 * nuse = ncap = nsze isn't always true, but we have no way to find
 	 * that out from the underlying device.
 	 */
 	id->ncap = id->nuse = id->nsze =
@@ -424,7 +417,7 @@ out:
 }
 
 /*
- * A "mimimum viable" abort implementation: the command is mandatory in the
+ * A "minimum viable" abort implementation: the command is mandatory in the
  * spec, but we are not required to do any useful work.  We couldn't really
  * do a useful abort, so don't bother even with waiting for the command
  * to be exectuted and return immediately telling the command to abort
diff --git a/drivers/nvme/target/configfs.c b/drivers/nvme/target/configfs.c
index b6aeb1d70951..e6b2d2af81b6 100644
--- a/drivers/nvme/target/configfs.c
+++ b/drivers/nvme/target/configfs.c
@@ -20,8 +20,8 @@
 
 #include "nvmet.h"
 
-static struct config_item_type nvmet_host_type;
-static struct config_item_type nvmet_subsys_type;
+static const struct config_item_type nvmet_host_type;
+static const struct config_item_type nvmet_subsys_type;
 
 /*
  * nvmet_port Generic ConfigFS definitions.
@@ -425,7 +425,7 @@ static struct configfs_item_operations nvmet_ns_item_ops = {
 	.release		= nvmet_ns_release,
 };
 
-static struct config_item_type nvmet_ns_type = {
+static const struct config_item_type nvmet_ns_type = {
 	.ct_item_ops		= &nvmet_ns_item_ops,
 	.ct_attrs		= nvmet_ns_attrs,
 	.ct_owner		= THIS_MODULE,
@@ -464,7 +464,7 @@ static struct configfs_group_operations nvmet_namespaces_group_ops = {
 	.make_group		= nvmet_ns_make,
 };
 
-static struct config_item_type nvmet_namespaces_type = {
+static const struct config_item_type nvmet_namespaces_type = {
 	.ct_group_ops		= &nvmet_namespaces_group_ops,
 	.ct_owner		= THIS_MODULE,
 };
@@ -540,7 +540,7 @@ static struct configfs_item_operations nvmet_port_subsys_item_ops = {
 	.drop_link		= nvmet_port_subsys_drop_link,
 };
 
-static struct config_item_type nvmet_port_subsys_type = {
+static const struct config_item_type nvmet_port_subsys_type = {
 	.ct_item_ops		= &nvmet_port_subsys_item_ops,
 	.ct_owner		= THIS_MODULE,
 };
@@ -613,7 +613,7 @@ static struct configfs_item_operations nvmet_allowed_hosts_item_ops = {
 	.drop_link		= nvmet_allowed_hosts_drop_link,
 };
 
-static struct config_item_type nvmet_allowed_hosts_type = {
+static const struct config_item_type nvmet_allowed_hosts_type = {
 	.ct_item_ops		= &nvmet_allowed_hosts_item_ops,
 	.ct_owner		= THIS_MODULE,
 };
@@ -729,7 +729,7 @@ static struct configfs_item_operations nvmet_subsys_item_ops = {
 	.release		= nvmet_subsys_release,
 };
 
-static struct config_item_type nvmet_subsys_type = {
+static const struct config_item_type nvmet_subsys_type = {
 	.ct_item_ops		= &nvmet_subsys_item_ops,
 	.ct_attrs		= nvmet_subsys_attrs,
 	.ct_owner		= THIS_MODULE,
@@ -767,7 +767,7 @@ static struct configfs_group_operations nvmet_subsystems_group_ops = {
 	.make_group		= nvmet_subsys_make,
 };
 
-static struct config_item_type nvmet_subsystems_type = {
+static const struct config_item_type nvmet_subsystems_type = {
 	.ct_group_ops		= &nvmet_subsystems_group_ops,
 	.ct_owner		= THIS_MODULE,
 };
@@ -827,7 +827,7 @@ static struct configfs_item_operations nvmet_referral_item_ops = {
 	.release	= nvmet_referral_release,
 };
 
-static struct config_item_type nvmet_referral_type = {
+static const struct config_item_type nvmet_referral_type = {
 	.ct_owner	= THIS_MODULE,
 	.ct_attrs	= nvmet_referral_attrs,
 	.ct_item_ops	= &nvmet_referral_item_ops,
@@ -852,7 +852,7 @@ static struct configfs_group_operations nvmet_referral_group_ops = {
 	.make_group		= nvmet_referral_make,
 };
 
-static struct config_item_type nvmet_referrals_type = {
+static const struct config_item_type nvmet_referrals_type = {
 	.ct_owner	= THIS_MODULE,
 	.ct_group_ops	= &nvmet_referral_group_ops,
 };
@@ -880,7 +880,7 @@ static struct configfs_item_operations nvmet_port_item_ops = {
 	.release		= nvmet_port_release,
 };
 
-static struct config_item_type nvmet_port_type = {
+static const struct config_item_type nvmet_port_type = {
 	.ct_attrs		= nvmet_port_attrs,
 	.ct_item_ops		= &nvmet_port_item_ops,
 	.ct_owner		= THIS_MODULE,
@@ -921,7 +921,7 @@ static struct configfs_group_operations nvmet_ports_group_ops = {
 	.make_group		= nvmet_ports_make,
 };
 
-static struct config_item_type nvmet_ports_type = {
+static const struct config_item_type nvmet_ports_type = {
 	.ct_group_ops		= &nvmet_ports_group_ops,
 	.ct_owner		= THIS_MODULE,
 };
@@ -940,7 +940,7 @@ static struct configfs_item_operations nvmet_host_item_ops = {
 	.release		= nvmet_host_release,
 };
 
-static struct config_item_type nvmet_host_type = {
+static const struct config_item_type nvmet_host_type = {
 	.ct_item_ops		= &nvmet_host_item_ops,
 	.ct_owner		= THIS_MODULE,
 };
@@ -963,14 +963,14 @@ static struct configfs_group_operations nvmet_hosts_group_ops = {
 	.make_group		= nvmet_hosts_make_group,
 };
 
-static struct config_item_type nvmet_hosts_type = {
+static const struct config_item_type nvmet_hosts_type = {
 	.ct_group_ops		= &nvmet_hosts_group_ops,
 	.ct_owner		= THIS_MODULE,
 };
 
 static struct config_group nvmet_hosts_group;
 
-static struct config_item_type nvmet_root_type = {
+static const struct config_item_type nvmet_root_type = {
 	.ct_owner		= THIS_MODULE,
 };
 
diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c
index 7c23eaf8e563..b54748ad5f48 100644
--- a/drivers/nvme/target/core.c
+++ b/drivers/nvme/target/core.c
@@ -57,6 +57,17 @@ u16 nvmet_copy_from_sgl(struct nvmet_req *req, off_t off, void *buf, size_t len)
 	return 0;
 }
 
+static unsigned int nvmet_max_nsid(struct nvmet_subsys *subsys)
+{
+	struct nvmet_ns *ns;
+
+	if (list_empty(&subsys->namespaces))
+		return 0;
+
+	ns = list_last_entry(&subsys->namespaces, struct nvmet_ns, dev_link);
+	return ns->nsid;
+}
+
 static u32 nvmet_async_event_result(struct nvmet_async_event *aen)
 {
 	return aen->event_type | (aen->event_info << 8) | (aen->log_page << 16);
@@ -334,6 +345,8 @@ void nvmet_ns_disable(struct nvmet_ns *ns)
 
 	ns->enabled = false;
 	list_del_rcu(&ns->dev_link);
+	if (ns->nsid == subsys->max_nsid)
+		subsys->max_nsid = nvmet_max_nsid(subsys);
 	mutex_unlock(&subsys->lock);
 
 	/*
@@ -387,13 +400,22 @@ struct nvmet_ns *nvmet_ns_alloc(struct nvmet_subsys *subsys, u32 nsid)
 
 static void __nvmet_req_complete(struct nvmet_req *req, u16 status)
 {
+	u32 old_sqhd, new_sqhd;
+	u16 sqhd;
+
 	if (status)
 		nvmet_set_status(req, status);
 
-	/* XXX: need to fill in something useful for sq_head */
-	req->rsp->sq_head = 0;
-	if (likely(req->sq)) /* may happen during early failure */
-		req->rsp->sq_id = cpu_to_le16(req->sq->qid);
+	if (req->sq->size) {
+		do {
+			old_sqhd = req->sq->sqhd;
+			new_sqhd = (old_sqhd + 1) % req->sq->size;
+		} while (cmpxchg(&req->sq->sqhd, old_sqhd, new_sqhd) !=
+					old_sqhd);
+	}
+	sqhd = req->sq->sqhd & 0x0000FFFF;
+	req->rsp->sq_head = cpu_to_le16(sqhd);
+	req->rsp->sq_id = cpu_to_le16(req->sq->qid);
 	req->rsp->command_id = req->cmd->common.command_id;
 
 	if (req->ns)
@@ -420,6 +442,7 @@ void nvmet_cq_setup(struct nvmet_ctrl *ctrl, struct nvmet_cq *cq,
 void nvmet_sq_setup(struct nvmet_ctrl *ctrl, struct nvmet_sq *sq,
 		u16 qid, u16 size)
 {
+	sq->sqhd = 0;
 	sq->qid = qid;
 	sq->size = size;
 
@@ -487,6 +510,7 @@ bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
 	req->ops = ops;
 	req->sg = NULL;
 	req->sg_cnt = 0;
+	req->transfer_len = 0;
 	req->rsp->status = 0;
 
 	/* no support for fused commands yet */
@@ -536,6 +560,15 @@ void nvmet_req_uninit(struct nvmet_req *req)
 }
 EXPORT_SYMBOL_GPL(nvmet_req_uninit);
 
+void nvmet_req_execute(struct nvmet_req *req)
+{
+	if (unlikely(req->data_len != req->transfer_len))
+		nvmet_req_complete(req, NVME_SC_SGL_INVALID_DATA | NVME_SC_DNR);
+	else
+		req->execute(req);
+}
+EXPORT_SYMBOL_GPL(nvmet_req_execute);
+
 static inline bool nvmet_cc_en(u32 cc)
 {
 	return (cc >> NVME_CC_EN_SHIFT) & 0x1;
diff --git a/drivers/nvme/target/fabrics-cmd.c b/drivers/nvme/target/fabrics-cmd.c
index 859a66725291..db3bf6b8bf9e 100644
--- a/drivers/nvme/target/fabrics-cmd.c
+++ b/drivers/nvme/target/fabrics-cmd.c
@@ -109,9 +109,14 @@ static u16 nvmet_install_queue(struct nvmet_ctrl *ctrl, struct nvmet_req *req)
 		pr_warn("queue already connected!\n");
 		return NVME_SC_CONNECT_CTRL_BUSY | NVME_SC_DNR;
 	}
+	if (!sqsize) {
+		pr_warn("queue size zero!\n");
+		return NVME_SC_CONNECT_INVALID_PARAM | NVME_SC_DNR;
+	}
 
-	nvmet_cq_setup(ctrl, req->cq, qid, sqsize);
-	nvmet_sq_setup(ctrl, req->sq, qid, sqsize);
+	/* note: convert queue size from 0's-based value to 1's-based value */
+	nvmet_cq_setup(ctrl, req->cq, qid, sqsize + 1);
+	nvmet_sq_setup(ctrl, req->sq, qid, sqsize + 1);
 	return 0;
 }
 
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index 421e43bf1dd7..739b8feadc7d 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -76,7 +76,6 @@ struct nvmet_fc_fcp_iod {
 	dma_addr_t			rspdma;
 	struct scatterlist		*data_sg;
 	int				data_sg_cnt;
-	u32				total_length;
 	u32				offset;
 	enum nvmet_fcp_datadir		io_dir;
 	bool				active;
@@ -148,8 +147,9 @@ struct nvmet_fc_tgt_assoc {
 	u32				a_id;
 	struct nvmet_fc_tgtport		*tgtport;
 	struct list_head		a_list;
-	struct nvmet_fc_tgt_queue	*queues[NVMET_NR_QUEUES];
+	struct nvmet_fc_tgt_queue	*queues[NVMET_NR_QUEUES + 1];
 	struct kref			ref;
+	struct work_struct		del_work;
 };
 
 
@@ -232,6 +232,7 @@ static void nvmet_fc_tgtport_put(struct nvmet_fc_tgtport *tgtport);
 static int nvmet_fc_tgtport_get(struct nvmet_fc_tgtport *tgtport);
 static void nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
 					struct nvmet_fc_fcp_iod *fod);
+static void nvmet_fc_delete_target_assoc(struct nvmet_fc_tgt_assoc *assoc);
 
 
 /* *********************** FC-NVME DMA Handling **************************** */
@@ -608,7 +609,7 @@ nvmet_fc_alloc_target_queue(struct nvmet_fc_tgt_assoc *assoc,
 	unsigned long flags;
 	int ret;
 
-	if (qid >= NVMET_NR_QUEUES)
+	if (qid > NVMET_NR_QUEUES)
 		return NULL;
 
 	queue = kzalloc((sizeof(*queue) +
@@ -783,6 +784,9 @@ nvmet_fc_find_target_queue(struct nvmet_fc_tgtport *tgtport,
 	u16 qid = nvmet_fc_getqueueid(connection_id);
 	unsigned long flags;
 
+	if (qid > NVMET_NR_QUEUES)
+		return NULL;
+
 	spin_lock_irqsave(&tgtport->lock, flags);
 	list_for_each_entry(assoc, &tgtport->assoc_list, a_list) {
 		if (association_id == assoc->association_id) {
@@ -799,6 +803,16 @@ nvmet_fc_find_target_queue(struct nvmet_fc_tgtport *tgtport,
 	return NULL;
 }
 
+static void
+nvmet_fc_delete_assoc(struct work_struct *work)
+{
+	struct nvmet_fc_tgt_assoc *assoc =
+		container_of(work, struct nvmet_fc_tgt_assoc, del_work);
+
+	nvmet_fc_delete_target_assoc(assoc);
+	nvmet_fc_tgt_a_put(assoc);
+}
+
 static struct nvmet_fc_tgt_assoc *
 nvmet_fc_alloc_target_assoc(struct nvmet_fc_tgtport *tgtport)
 {
@@ -823,6 +837,7 @@ nvmet_fc_alloc_target_assoc(struct nvmet_fc_tgtport *tgtport)
 	assoc->a_id = idx;
 	INIT_LIST_HEAD(&assoc->a_list);
 	kref_init(&assoc->ref);
+	INIT_WORK(&assoc->del_work, nvmet_fc_delete_assoc);
 
 	while (needrandom) {
 		get_random_bytes(&ran, sizeof(ran) - BYTES_FOR_QID);
@@ -888,7 +903,7 @@ nvmet_fc_delete_target_assoc(struct nvmet_fc_tgt_assoc *assoc)
 	int i;
 
 	spin_lock_irqsave(&tgtport->lock, flags);
-	for (i = NVMET_NR_QUEUES - 1; i >= 0; i--) {
+	for (i = NVMET_NR_QUEUES; i >= 0; i--) {
 		queue = assoc->queues[i];
 		if (queue) {
 			if (!nvmet_fc_tgt_q_get(queue))
@@ -1115,8 +1130,7 @@ nvmet_fc_delete_ctrl(struct nvmet_ctrl *ctrl)
 		nvmet_fc_tgtport_put(tgtport);
 
 		if (found_ctrl) {
-			nvmet_fc_delete_target_assoc(assoc);
-			nvmet_fc_tgt_a_put(assoc);
+			schedule_work(&assoc->del_work);
 			return;
 		}
 
@@ -1685,7 +1699,7 @@ nvmet_fc_alloc_tgt_pgs(struct nvmet_fc_fcp_iod *fod)
 	u32 page_len, length;
 	int i = 0;
 
-	length = fod->total_length;
+	length = fod->req.transfer_len;
 	nent = DIV_ROUND_UP(length, PAGE_SIZE);
 	sg = kmalloc_array(nent, sizeof(struct scatterlist), GFP_KERNEL);
 	if (!sg)
@@ -1774,7 +1788,7 @@ nvmet_fc_prep_fcp_rsp(struct nvmet_fc_tgtport *tgtport,
 	u32 rsn, rspcnt, xfr_length;
 
 	if (fod->fcpreq->op == NVMET_FCOP_READDATA_RSP)
-		xfr_length = fod->total_length;
+		xfr_length = fod->req.transfer_len;
 	else
 		xfr_length = fod->offset;
 
@@ -1800,7 +1814,7 @@ nvmet_fc_prep_fcp_rsp(struct nvmet_fc_tgtport *tgtport,
 	rspcnt = atomic_inc_return(&fod->queue->zrspcnt);
 	if (!(rspcnt % fod->queue->ersp_ratio) ||
 	    sqe->opcode == nvme_fabrics_command ||
-	    xfr_length != fod->total_length ||
+	    xfr_length != fod->req.transfer_len ||
 	    (le16_to_cpu(cqe->status) & 0xFFFE) || cqewd[0] || cqewd[1] ||
 	    (sqe->flags & (NVME_CMD_FUSE_FIRST | NVME_CMD_FUSE_SECOND)) ||
 	    queue_90percent_full(fod->queue, le16_to_cpu(cqe->sq_head)))
@@ -1877,7 +1891,7 @@ nvmet_fc_transfer_fcp_data(struct nvmet_fc_tgtport *tgtport,
 	fcpreq->timeout = NVME_FC_TGTOP_TIMEOUT_SEC;
 
 	tlen = min_t(u32, tgtport->max_sg_cnt * PAGE_SIZE,
-			(fod->total_length - fod->offset));
+			(fod->req.transfer_len - fod->offset));
 	fcpreq->transfer_length = tlen;
 	fcpreq->transferred_length = 0;
 	fcpreq->fcp_error = 0;
@@ -1891,7 +1905,7 @@ nvmet_fc_transfer_fcp_data(struct nvmet_fc_tgtport *tgtport,
 	 * combined xfr with response.
 	 */
 	if ((op == NVMET_FCOP_READDATA) &&
-	    ((fod->offset + fcpreq->transfer_length) == fod->total_length) &&
+	    ((fod->offset + fcpreq->transfer_length) == fod->req.transfer_len) &&
 	    (tgtport->ops->target_features & NVMET_FCTGTFEAT_READDATA_RSP)) {
 		fcpreq->op = NVMET_FCOP_READDATA_RSP;
 		nvmet_fc_prep_fcp_rsp(tgtport, fod);
@@ -1910,8 +1924,7 @@ nvmet_fc_transfer_fcp_data(struct nvmet_fc_tgtport *tgtport,
 			spin_lock_irqsave(&fod->flock, flags);
 			fod->writedataactive = false;
 			spin_unlock_irqrestore(&fod->flock, flags);
-			nvmet_req_complete(&fod->req,
-					NVME_SC_FC_TRANSPORT_ERROR);
+			nvmet_req_complete(&fod->req, NVME_SC_INTERNAL);
 		} else /* NVMET_FCOP_READDATA or NVMET_FCOP_READDATA_RSP */ {
 			fcpreq->fcp_error = ret;
 			fcpreq->transferred_length = 0;
@@ -1929,8 +1942,7 @@ __nvmet_fc_fod_op_abort(struct nvmet_fc_fcp_iod *fod, bool abort)
 	/* if in the middle of an io and we need to tear down */
 	if (abort) {
 		if (fcpreq->op == NVMET_FCOP_WRITEDATA) {
-			nvmet_req_complete(&fod->req,
-					NVME_SC_FC_TRANSPORT_ERROR);
+			nvmet_req_complete(&fod->req, NVME_SC_INTERNAL);
 			return true;
 		}
 
@@ -1968,13 +1980,12 @@ nvmet_fc_fod_op_done(struct nvmet_fc_fcp_iod *fod)
 			fod->abort = true;
 			spin_unlock(&fod->flock);
 
-			nvmet_req_complete(&fod->req,
-					NVME_SC_FC_TRANSPORT_ERROR);
+			nvmet_req_complete(&fod->req, NVME_SC_INTERNAL);
 			return;
 		}
 
 		fod->offset += fcpreq->transferred_length;
-		if (fod->offset != fod->total_length) {
+		if (fod->offset != fod->req.transfer_len) {
 			spin_lock_irqsave(&fod->flock, flags);
 			fod->writedataactive = true;
 			spin_unlock_irqrestore(&fod->flock, flags);
@@ -1986,9 +1997,7 @@ nvmet_fc_fod_op_done(struct nvmet_fc_fcp_iod *fod)
 		}
 
 		/* data transfer complete, resume with nvmet layer */
-
-		fod->req.execute(&fod->req);
-
+		nvmet_req_execute(&fod->req);
 		break;
 
 	case NVMET_FCOP_READDATA:
@@ -2011,7 +2020,7 @@ nvmet_fc_fod_op_done(struct nvmet_fc_fcp_iod *fod)
 		}
 
 		fod->offset += fcpreq->transferred_length;
-		if (fod->offset != fod->total_length) {
+		if (fod->offset != fod->req.transfer_len) {
 			/* transfer the next chunk */
 			nvmet_fc_transfer_fcp_data(tgtport, fod,
 						NVMET_FCOP_READDATA);
@@ -2148,7 +2157,7 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
 
 	fod->fcpreq->done = nvmet_fc_xmt_fcp_op_done;
 
-	fod->total_length = be32_to_cpu(cmdiu->data_len);
+	fod->req.transfer_len = be32_to_cpu(cmdiu->data_len);
 	if (cmdiu->flags & FCNVME_CMD_FLAGS_WRITE) {
 		fod->io_dir = NVMET_FCP_WRITE;
 		if (!nvme_is_write(&cmdiu->sqe))
@@ -2159,7 +2168,7 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
 			goto transport_error;
 	} else {
 		fod->io_dir = NVMET_FCP_NODATA;
-		if (fod->total_length)
+		if (fod->req.transfer_len)
 			goto transport_error;
 	}
 
@@ -2167,9 +2176,6 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
 	fod->req.rsp = &fod->rspiubuf.cqe;
 	fod->req.port = fod->queue->port;
 
-	/* ensure nvmet handlers will set cmd handler callback */
-	fod->req.execute = NULL;
-
 	/* clear any response payload */
 	memset(&fod->rspiubuf, 0, sizeof(fod->rspiubuf));
 
@@ -2189,7 +2195,7 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
 	/* keep a running counter of tail position */
 	atomic_inc(&fod->queue->sqtail);
 
-	if (fod->total_length) {
+	if (fod->req.transfer_len) {
 		ret = nvmet_fc_alloc_tgt_pgs(fod);
 		if (ret) {
 			nvmet_req_complete(&fod->req, ret);
@@ -2212,9 +2218,7 @@ nvmet_fc_handle_fcp_rqst(struct nvmet_fc_tgtport *tgtport,
 	 * can invoke the nvmet_layer now. If read data, cmd completion will
 	 * push the data
 	 */
-
-	fod->req.execute(&fod->req);
-
+	nvmet_req_execute(&fod->req);
 	return;
 
 transport_error:
@@ -2533,13 +2537,17 @@ nvmet_fc_remove_port(struct nvmet_port *port)
 {
 	struct nvmet_fc_tgtport *tgtport = port->priv;
 	unsigned long flags;
+	bool matched = false;
 
 	spin_lock_irqsave(&nvmet_fc_tgtlock, flags);
 	if (tgtport->port == port) {
-		nvmet_fc_tgtport_put(tgtport);
+		matched = true;
 		tgtport->port = NULL;
 	}
 	spin_unlock_irqrestore(&nvmet_fc_tgtlock, flags);
+
+	if (matched)
+		nvmet_fc_tgtport_put(tgtport);
 }
 
 static struct nvmet_fabrics_ops nvmet_fc_tgt_fcp_ops = {
diff --git a/drivers/nvme/target/fcloop.c b/drivers/nvme/target/fcloop.c
index 1cb9847ec261..7b75d9de55ab 100644
--- a/drivers/nvme/target/fcloop.c
+++ b/drivers/nvme/target/fcloop.c
@@ -224,8 +224,6 @@ struct fcloop_nport {
 	struct fcloop_lport *lport;
 	struct list_head nport_list;
 	struct kref ref;
-	struct completion rport_unreg_done;
-	struct completion tport_unreg_done;
 	u64 node_name;
 	u64 port_name;
 	u32 port_role;
@@ -576,7 +574,7 @@ fcloop_tgt_fcp_abort(struct nvmet_fc_target_port *tgtport,
 	tfcp_req->aborted = true;
 	spin_unlock(&tfcp_req->reqlock);
 
-	tfcp_req->status = NVME_SC_FC_TRANSPORT_ABORTED;
+	tfcp_req->status = NVME_SC_INTERNAL;
 
 	/*
 	 * nothing more to do. If io wasn't active, the transport should
@@ -631,6 +629,32 @@ fcloop_fcp_abort(struct nvme_fc_local_port *localport,
 }
 
 static void
+fcloop_nport_free(struct kref *ref)
+{
+	struct fcloop_nport *nport =
+		container_of(ref, struct fcloop_nport, ref);
+	unsigned long flags;
+
+	spin_lock_irqsave(&fcloop_lock, flags);
+	list_del(&nport->nport_list);
+	spin_unlock_irqrestore(&fcloop_lock, flags);
+
+	kfree(nport);
+}
+
+static void
+fcloop_nport_put(struct fcloop_nport *nport)
+{
+	kref_put(&nport->ref, fcloop_nport_free);
+}
+
+static int
+fcloop_nport_get(struct fcloop_nport *nport)
+{
+	return kref_get_unless_zero(&nport->ref);
+}
+
+static void
 fcloop_localport_delete(struct nvme_fc_local_port *localport)
 {
 	struct fcloop_lport *lport = localport->private;
@@ -644,8 +668,7 @@ fcloop_remoteport_delete(struct nvme_fc_remote_port *remoteport)
 {
 	struct fcloop_rport *rport = remoteport->private;
 
-	/* release any threads waiting for the unreg to complete */
-	complete(&rport->nport->rport_unreg_done);
+	fcloop_nport_put(rport->nport);
 }
 
 static void
@@ -653,8 +676,7 @@ fcloop_targetport_delete(struct nvmet_fc_target_port *targetport)
 {
 	struct fcloop_tport *tport = targetport->private;
 
-	/* release any threads waiting for the unreg to complete */
-	complete(&tport->nport->tport_unreg_done);
+	fcloop_nport_put(tport->nport);
 }
 
 #define	FCLOOP_HW_QUEUES		4
@@ -722,6 +744,7 @@ fcloop_create_local_port(struct device *dev, struct device_attribute *attr,
 		goto out_free_opts;
 	}
 
+	memset(&pinfo, 0, sizeof(pinfo));
 	pinfo.node_name = opts->wwnn;
 	pinfo.port_name = opts->wwpn;
 	pinfo.port_role = opts->roles;
@@ -804,32 +827,6 @@ fcloop_delete_local_port(struct device *dev, struct device_attribute *attr,
 	return ret ? ret : count;
 }
 
-static void
-fcloop_nport_free(struct kref *ref)
-{
-	struct fcloop_nport *nport =
-		container_of(ref, struct fcloop_nport, ref);
-	unsigned long flags;
-
-	spin_lock_irqsave(&fcloop_lock, flags);
-	list_del(&nport->nport_list);
-	spin_unlock_irqrestore(&fcloop_lock, flags);
-
-	kfree(nport);
-}
-
-static void
-fcloop_nport_put(struct fcloop_nport *nport)
-{
-	kref_put(&nport->ref, fcloop_nport_free);
-}
-
-static int
-fcloop_nport_get(struct fcloop_nport *nport)
-{
-	return kref_get_unless_zero(&nport->ref);
-}
-
 static struct fcloop_nport *
 fcloop_alloc_nport(const char *buf, size_t count, bool remoteport)
 {
@@ -938,6 +935,7 @@ fcloop_create_remote_port(struct device *dev, struct device_attribute *attr,
 	if (!nport)
 		return -EIO;
 
+	memset(&pinfo, 0, sizeof(pinfo));
 	pinfo.node_name = nport->node_name;
 	pinfo.port_name = nport->port_name;
 	pinfo.port_role = nport->port_role;
@@ -979,24 +977,12 @@ __unlink_remote_port(struct fcloop_nport *nport)
 }
 
 static int
-__wait_remoteport_unreg(struct fcloop_nport *nport, struct fcloop_rport *rport)
+__remoteport_unreg(struct fcloop_nport *nport, struct fcloop_rport *rport)
 {
-	int ret;
-
 	if (!rport)
 		return -EALREADY;
 
-	init_completion(&nport->rport_unreg_done);
-
-	ret = nvme_fc_unregister_remoteport(rport->remoteport);
-	if (ret)
-		return ret;
-
-	wait_for_completion(&nport->rport_unreg_done);
-
-	fcloop_nport_put(nport);
-
-	return ret;
+	return nvme_fc_unregister_remoteport(rport->remoteport);
 }
 
 static ssize_t
@@ -1029,7 +1015,7 @@ fcloop_delete_remote_port(struct device *dev, struct device_attribute *attr,
 	if (!nport)
 		return -ENOENT;
 
-	ret = __wait_remoteport_unreg(nport, rport);
+	ret = __remoteport_unreg(nport, rport);
 
 	return ret ? ret : count;
 }
@@ -1086,24 +1072,12 @@ __unlink_target_port(struct fcloop_nport *nport)
 }
 
 static int
-__wait_targetport_unreg(struct fcloop_nport *nport, struct fcloop_tport *tport)
+__targetport_unreg(struct fcloop_nport *nport, struct fcloop_tport *tport)
 {
-	int ret;
-
 	if (!tport)
 		return -EALREADY;
 
-	init_completion(&nport->tport_unreg_done);
-
-	ret = nvmet_fc_unregister_targetport(tport->targetport);
-	if (ret)
-		return ret;
-
-	wait_for_completion(&nport->tport_unreg_done);
-
-	fcloop_nport_put(nport);
-
-	return ret;
+	return nvmet_fc_unregister_targetport(tport->targetport);
 }
 
 static ssize_t
@@ -1136,7 +1110,7 @@ fcloop_delete_target_port(struct device *dev, struct device_attribute *attr,
 	if (!nport)
 		return -ENOENT;
 
-	ret = __wait_targetport_unreg(nport, tport);
+	ret = __targetport_unreg(nport, tport);
 
 	return ret ? ret : count;
 }
@@ -1223,11 +1197,11 @@ static void __exit fcloop_exit(void)
 
 		spin_unlock_irqrestore(&fcloop_lock, flags);
 
-		ret = __wait_targetport_unreg(nport, tport);
+		ret = __targetport_unreg(nport, tport);
 		if (ret)
 			pr_warn("%s: Failed deleting target port\n", __func__);
 
-		ret = __wait_remoteport_unreg(nport, rport);
+		ret = __remoteport_unreg(nport, rport);
 		if (ret)
 			pr_warn("%s: Failed deleting remote port\n", __func__);
 
diff --git a/drivers/nvme/target/io-cmd.c b/drivers/nvme/target/io-cmd.c
index 0d4c23dc4532..0a4372a016f2 100644
--- a/drivers/nvme/target/io-cmd.c
+++ b/drivers/nvme/target/io-cmd.c
@@ -33,18 +33,11 @@ static inline u32 nvmet_rw_len(struct nvmet_req *req)
 			req->ns->blksize_shift;
 }
 
-static void nvmet_inline_bio_init(struct nvmet_req *req)
-{
-	struct bio *bio = &req->inline_bio;
-
-	bio_init(bio, req->inline_bvec, NVMET_MAX_INLINE_BIOVEC);
-}
-
 static void nvmet_execute_rw(struct nvmet_req *req)
 {
 	int sg_cnt = req->sg_cnt;
+	struct bio *bio = &req->inline_bio;
 	struct scatterlist *sg;
-	struct bio *bio;
 	sector_t sector;
 	blk_qc_t cookie;
 	int op, op_flags = 0, i;
@@ -66,8 +59,7 @@ static void nvmet_execute_rw(struct nvmet_req *req)
 	sector = le64_to_cpu(req->cmd->rw.slba);
 	sector <<= (req->ns->blksize_shift - 9);
 
-	nvmet_inline_bio_init(req);
-	bio = &req->inline_bio;
+	bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
 	bio_set_dev(bio, req->ns->bdev);
 	bio->bi_iter.bi_sector = sector;
 	bio->bi_private = req;
@@ -94,16 +86,14 @@ static void nvmet_execute_rw(struct nvmet_req *req)
 
 	cookie = submit_bio(bio);
 
-	blk_mq_poll(bdev_get_queue(req->ns->bdev), cookie);
+	blk_poll(bdev_get_queue(req->ns->bdev), cookie);
 }
 
 static void nvmet_execute_flush(struct nvmet_req *req)
 {
-	struct bio *bio;
-
-	nvmet_inline_bio_init(req);
-	bio = &req->inline_bio;
+	struct bio *bio = &req->inline_bio;
 
+	bio_init(bio, req->inline_bvec, ARRAY_SIZE(req->inline_bvec));
 	bio_set_dev(bio, req->ns->bdev);
 	bio->bi_private = req;
 	bio->bi_end_io = nvmet_bio_done;
diff --git a/drivers/nvme/target/loop.c b/drivers/nvme/target/loop.c
index 92628c432926..96d390416789 100644
--- a/drivers/nvme/target/loop.c
+++ b/drivers/nvme/target/loop.c
@@ -23,14 +23,6 @@
 
 #define NVME_LOOP_MAX_SEGMENTS		256
 
-/*
- * We handle AEN commands ourselves and don't even let the
- * block layer know about them.
- */
-#define NVME_LOOP_NR_AEN_COMMANDS	1
-#define NVME_LOOP_AQ_BLKMQ_DEPTH	\
-	(NVME_AQ_DEPTH - NVME_LOOP_NR_AEN_COMMANDS)
-
 struct nvme_loop_iod {
 	struct nvme_request	nvme_req;
 	struct nvme_command	cmd;
@@ -53,7 +45,6 @@ struct nvme_loop_ctrl {
 	struct nvme_ctrl	ctrl;
 
 	struct nvmet_ctrl	*target_ctrl;
-	struct work_struct	delete_work;
 };
 
 static inline struct nvme_loop_ctrl *to_loop_ctrl(struct nvme_ctrl *ctrl)
@@ -113,7 +104,7 @@ static void nvme_loop_queue_response(struct nvmet_req *req)
 	 * for them but rather special case them here.
 	 */
 	if (unlikely(nvme_loop_queue_idx(queue) == 0 &&
-			cqe->command_id >= NVME_LOOP_AQ_BLKMQ_DEPTH)) {
+			cqe->command_id >= NVME_AQ_BLK_MQ_DEPTH)) {
 		nvme_complete_async_event(&queue->ctrl->ctrl, cqe->status,
 				&cqe->result);
 	} else {
@@ -136,7 +127,7 @@ static void nvme_loop_execute_work(struct work_struct *work)
 	struct nvme_loop_iod *iod =
 		container_of(work, struct nvme_loop_iod, work);
 
-	iod->req.execute(&iod->req);
+	nvmet_req_execute(&iod->req);
 }
 
 static enum blk_eh_timer_return
@@ -185,6 +176,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 
 		iod->req.sg = iod->sg_table.sgl;
 		iod->req.sg_cnt = blk_rq_map_sg(req->q, req, iod->sg_table.sgl);
+		iod->req.transfer_len = blk_rq_bytes(req);
 	}
 
 	blk_mq_start_request(req);
@@ -193,7 +185,7 @@ static blk_status_t nvme_loop_queue_rq(struct blk_mq_hw_ctx *hctx,
 	return BLK_STS_OK;
 }
 
-static void nvme_loop_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
+static void nvme_loop_submit_async_event(struct nvme_ctrl *arg)
 {
 	struct nvme_loop_ctrl *ctrl = to_loop_ctrl(arg);
 	struct nvme_loop_queue *queue = &ctrl->queues[0];
@@ -201,7 +193,7 @@ static void nvme_loop_submit_async_event(struct nvme_ctrl *arg, int aer_idx)
 
 	memset(&iod->cmd, 0, sizeof(iod->cmd));
 	iod->cmd.common.opcode = nvme_admin_async_event;
-	iod->cmd.common.command_id = NVME_LOOP_AQ_BLKMQ_DEPTH;
+	iod->cmd.common.command_id = NVME_AQ_BLK_MQ_DEPTH;
 	iod->cmd.common.flags |= NVME_CMD_SGL_METABUF;
 
 	if (!nvmet_req_init(&iod->req, &queue->nvme_cq, &queue->nvme_sq,
@@ -357,7 +349,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
 
 	memset(&ctrl->admin_tag_set, 0, sizeof(ctrl->admin_tag_set));
 	ctrl->admin_tag_set.ops = &nvme_loop_admin_mq_ops;
-	ctrl->admin_tag_set.queue_depth = NVME_LOOP_AQ_BLKMQ_DEPTH;
+	ctrl->admin_tag_set.queue_depth = NVME_AQ_MQ_TAG_DEPTH;
 	ctrl->admin_tag_set.reserved_tags = 2; /* connect + keep-alive */
 	ctrl->admin_tag_set.numa_node = NUMA_NO_NODE;
 	ctrl->admin_tag_set.cmd_size = sizeof(struct nvme_loop_iod) +
@@ -365,6 +357,7 @@ static int nvme_loop_configure_admin_queue(struct nvme_loop_ctrl *ctrl)
 	ctrl->admin_tag_set.driver_data = ctrl;
 	ctrl->admin_tag_set.nr_hw_queues = 1;
 	ctrl->admin_tag_set.timeout = ADMIN_TIMEOUT;
+	ctrl->admin_tag_set.flags = BLK_MQ_F_NO_SCHED;
 
 	ctrl->queues[0].ctrl = ctrl;
 	error = nvmet_sq_init(&ctrl->queues[0].nvme_sq);
@@ -438,41 +431,9 @@ static void nvme_loop_shutdown_ctrl(struct nvme_loop_ctrl *ctrl)
 	nvme_loop_destroy_admin_queue(ctrl);
 }
 
-static void nvme_loop_del_ctrl_work(struct work_struct *work)
+static void nvme_loop_delete_ctrl_host(struct nvme_ctrl *ctrl)
 {
-	struct nvme_loop_ctrl *ctrl = container_of(work,
-				struct nvme_loop_ctrl, delete_work);
-
-	nvme_stop_ctrl(&ctrl->ctrl);
-	nvme_remove_namespaces(&ctrl->ctrl);
-	nvme_loop_shutdown_ctrl(ctrl);
-	nvme_uninit_ctrl(&ctrl->ctrl);
-	nvme_put_ctrl(&ctrl->ctrl);
-}
-
-static int __nvme_loop_del_ctrl(struct nvme_loop_ctrl *ctrl)
-{
-	if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING))
-		return -EBUSY;
-
-	if (!queue_work(nvme_wq, &ctrl->delete_work))
-		return -EBUSY;
-
-	return 0;
-}
-
-static int nvme_loop_del_ctrl(struct nvme_ctrl *nctrl)
-{
-	struct nvme_loop_ctrl *ctrl = to_loop_ctrl(nctrl);
-	int ret;
-
-	ret = __nvme_loop_del_ctrl(ctrl);
-	if (ret)
-		return ret;
-
-	flush_work(&ctrl->delete_work);
-
-	return 0;
+	nvme_loop_shutdown_ctrl(to_loop_ctrl(ctrl));
 }
 
 static void nvme_loop_delete_ctrl(struct nvmet_ctrl *nctrl)
@@ -482,7 +443,7 @@ static void nvme_loop_delete_ctrl(struct nvmet_ctrl *nctrl)
 	mutex_lock(&nvme_loop_ctrl_mutex);
 	list_for_each_entry(ctrl, &nvme_loop_ctrl_list, list) {
 		if (ctrl->ctrl.cntlid == nctrl->cntlid)
-			__nvme_loop_del_ctrl(ctrl);
+			nvme_delete_ctrl(&ctrl->ctrl);
 	}
 	mutex_unlock(&nvme_loop_ctrl_mutex);
 }
@@ -538,7 +499,7 @@ static const struct nvme_ctrl_ops nvme_loop_ctrl_ops = {
 	.reg_write32		= nvmf_reg_write32,
 	.free_ctrl		= nvme_loop_free_ctrl,
 	.submit_async_event	= nvme_loop_submit_async_event,
-	.delete_ctrl		= nvme_loop_del_ctrl,
+	.delete_ctrl		= nvme_loop_delete_ctrl_host,
 };
 
 static int nvme_loop_create_io_queues(struct nvme_loop_ctrl *ctrl)
@@ -600,7 +561,6 @@ static struct nvme_ctrl *nvme_loop_create_ctrl(struct device *dev,
 	ctrl->ctrl.opts = opts;
 	INIT_LIST_HEAD(&ctrl->list);
 
-	INIT_WORK(&ctrl->delete_work, nvme_loop_del_ctrl_work);
 	INIT_WORK(&ctrl->ctrl.reset_work, nvme_loop_reset_ctrl_work);
 
 	ret = nvme_init_ctrl(&ctrl->ctrl, dev, &nvme_loop_ctrl_ops,
@@ -641,7 +601,7 @@ static struct nvme_ctrl *nvme_loop_create_ctrl(struct device *dev,
 	dev_info(ctrl->ctrl.device,
 		 "new ctrl: \"%s\"\n", ctrl->ctrl.opts->subsysnqn);
 
-	kref_get(&ctrl->ctrl.kref);
+	nvme_get_ctrl(&ctrl->ctrl);
 
 	changed = nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_LIVE);
 	WARN_ON_ONCE(!changed);
@@ -730,7 +690,7 @@ static void __exit nvme_loop_cleanup_module(void)
 
 	mutex_lock(&nvme_loop_ctrl_mutex);
 	list_for_each_entry_safe(ctrl, next, &nvme_loop_ctrl_list, list)
-		__nvme_loop_del_ctrl(ctrl);
+		nvme_delete_ctrl(&ctrl->ctrl);
 	mutex_unlock(&nvme_loop_ctrl_mutex);
 
 	flush_workqueue(nvme_wq);
diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h
index 7d261ab894f4..417f6c0331cc 100644
--- a/drivers/nvme/target/nvmet.h
+++ b/drivers/nvme/target/nvmet.h
@@ -74,6 +74,7 @@ struct nvmet_sq {
 	struct percpu_ref	ref;
 	u16			qid;
 	u16			size;
+	u32			sqhd;
 	struct completion	free_done;
 	struct completion	confirm_done;
 };
@@ -222,7 +223,10 @@ struct nvmet_req {
 	struct bio		inline_bio;
 	struct bio_vec		inline_bvec[NVMET_MAX_INLINE_BIOVEC];
 	int			sg_cnt;
+	/* data length as parsed from the command: */
 	size_t			data_len;
+	/* data length as parsed from the SGL descriptor: */
+	size_t			transfer_len;
 
 	struct nvmet_port	*port;
 
@@ -265,6 +269,7 @@ u16 nvmet_parse_fabrics_cmd(struct nvmet_req *req);
 bool nvmet_req_init(struct nvmet_req *req, struct nvmet_cq *cq,
 		struct nvmet_sq *sq, struct nvmet_fabrics_ops *ops);
 void nvmet_req_uninit(struct nvmet_req *req);
+void nvmet_req_execute(struct nvmet_req *req);
 void nvmet_req_complete(struct nvmet_req *req, u16 status);
 
 void nvmet_cq_setup(struct nvmet_ctrl *ctrl, struct nvmet_cq *cq, u16 qid,
@@ -313,7 +318,7 @@ u16 nvmet_copy_from_sgl(struct nvmet_req *req, off_t off, void *buf,
 u32 nvmet_get_log_page_len(struct nvme_command *cmd);
 
 #define NVMET_QUEUE_SIZE	1024
-#define NVMET_NR_QUEUES		64
+#define NVMET_NR_QUEUES		128
 #define NVMET_MAX_CMD		NVMET_QUEUE_SIZE
 #define NVMET_KAS		10
 #define NVMET_DISC_KATO		120
diff --git a/drivers/nvme/target/rdma.c b/drivers/nvme/target/rdma.c
index 76d2bb793afe..49912909c298 100644
--- a/drivers/nvme/target/rdma.c
+++ b/drivers/nvme/target/rdma.c
@@ -148,14 +148,14 @@ static inline u32 get_unaligned_le24(const u8 *p)
 static inline bool nvmet_rdma_need_data_in(struct nvmet_rdma_rsp *rsp)
 {
 	return nvme_is_write(rsp->req.cmd) &&
-		rsp->req.data_len &&
+		rsp->req.transfer_len &&
 		!(rsp->flags & NVMET_RDMA_REQ_INLINE_DATA);
 }
 
 static inline bool nvmet_rdma_need_data_out(struct nvmet_rdma_rsp *rsp)
 {
 	return !nvme_is_write(rsp->req.cmd) &&
-		rsp->req.data_len &&
+		rsp->req.transfer_len &&
 		!rsp->req.rsp->status &&
 		!(rsp->flags & NVMET_RDMA_REQ_INLINE_DATA);
 }
@@ -577,7 +577,7 @@ static void nvmet_rdma_read_data_done(struct ib_cq *cq, struct ib_wc *wc)
 		return;
 	}
 
-	rsp->req.execute(&rsp->req);
+	nvmet_req_execute(&rsp->req);
 }
 
 static void nvmet_rdma_use_inline_sg(struct nvmet_rdma_rsp *rsp, u32 len,
@@ -609,6 +609,7 @@ static u16 nvmet_rdma_map_sgl_inline(struct nvmet_rdma_rsp *rsp)
 
 	nvmet_rdma_use_inline_sg(rsp, len, off);
 	rsp->flags |= NVMET_RDMA_REQ_INLINE_DATA;
+	rsp->req.transfer_len += len;
 	return 0;
 }
 
@@ -636,6 +637,7 @@ static u16 nvmet_rdma_map_sgl_keyed(struct nvmet_rdma_rsp *rsp,
 			nvmet_data_dir(&rsp->req));
 	if (ret < 0)
 		return NVME_SC_INTERNAL;
+	rsp->req.transfer_len += len;
 	rsp->n_rdma += ret;
 
 	if (invalidate) {
@@ -693,7 +695,7 @@ static bool nvmet_rdma_execute_command(struct nvmet_rdma_rsp *rsp)
 				queue->cm_id->port_num, &rsp->read_cqe, NULL))
 			nvmet_req_complete(&rsp->req, NVME_SC_DATA_XFER_ERROR);
 	} else {
-		rsp->req.execute(&rsp->req);
+		nvmet_req_execute(&rsp->req);
 	}
 
 	return true;
@@ -1512,15 +1514,17 @@ static struct nvmet_fabrics_ops nvmet_rdma_ops = {
 
 static void nvmet_rdma_remove_one(struct ib_device *ib_device, void *client_data)
 {
-	struct nvmet_rdma_queue *queue;
+	struct nvmet_rdma_queue *queue, *tmp;
 
 	/* Device is being removed, delete all queues using this device */
 	mutex_lock(&nvmet_rdma_queue_mutex);
-	list_for_each_entry(queue, &nvmet_rdma_queue_list, queue_list) {
+	list_for_each_entry_safe(queue, tmp, &nvmet_rdma_queue_list,
+				 queue_list) {
 		if (queue->dev->device != ib_device)
 			continue;
 
 		pr_info("Removing queue %d\n", queue->idx);
+		list_del_init(&queue->queue_list);
 		__nvmet_rdma_queue_disconnect(queue);
 	}
 	mutex_unlock(&nvmet_rdma_queue_mutex);
diff --git a/drivers/nvmem/Makefile b/drivers/nvmem/Makefile
index 173140658693..6f7a77fb3ee7 100644
--- a/drivers/nvmem/Makefile
+++ b/drivers/nvmem/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for nvmem drivers.
 #
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
index de54c7f5048a..d12e5de78e70 100644
--- a/drivers/nvmem/core.c
+++ b/drivers/nvmem/core.c
@@ -135,7 +135,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj,
 
 	/* Stop the user from writing */
 	if (pos >= nvmem->size)
-		return 0;
+		return -EFBIG;
 
 	if (count < nvmem->word_size)
 		return -EINVAL;
@@ -789,6 +789,7 @@ struct nvmem_cell *of_nvmem_cell_get(struct device_node *np,
 		return ERR_PTR(-EINVAL);
 
 	nvmem = __nvmem_device_get(nvmem_np, NULL, NULL);
+	of_node_put(nvmem_np);
 	if (IS_ERR(nvmem))
 		return ERR_CAST(nvmem);
 
diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index 97dc01c81438..8f19d342eed8 100644
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y = base.o device.o platform.o property.o
 obj-$(CONFIG_OF_DYNAMIC) += dynamic.o
 obj-$(CONFIG_OF_FLATTREE) += fdt.o
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 260d33c0f26c..63897531cd75 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1781,8 +1781,12 @@ bool of_console_check(struct device_node *dn, char *name, int index)
 {
 	if (!dn || dn != of_stdout || console_set_on_cmdline)
 		return false;
-	return !add_preferred_console(name, index,
-				      kstrdup(of_stdout_options, GFP_KERNEL));
+
+	/*
+	 * XXX: cast `options' to char pointer to suppress complication
+	 * warnings: printk, UART and console drivers expect char pointer.
+	 */
+	return !add_preferred_console(name, index, (char *)of_stdout_options);
 }
 EXPORT_SYMBOL_GPL(of_console_check);
 
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index d94dd8b77abd..98258583abb0 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -44,7 +44,7 @@ static int of_get_phy_id(struct device_node *device, u32 *phy_id)
 	return -EINVAL;
 }
 
-static void of_mdiobus_register_phy(struct mii_bus *mdio,
+static int of_mdiobus_register_phy(struct mii_bus *mdio,
 				    struct device_node *child, u32 addr)
 {
 	struct phy_device *phy;
@@ -60,9 +60,13 @@ static void of_mdiobus_register_phy(struct mii_bus *mdio,
 	else
 		phy = get_phy_device(mdio, addr, is_c45);
 	if (IS_ERR(phy))
-		return;
+		return PTR_ERR(phy);
 
-	rc = irq_of_parse_and_map(child, 0);
+	rc = of_irq_get(child, 0);
+	if (rc == -EPROBE_DEFER) {
+		phy_device_free(phy);
+		return rc;
+	}
 	if (rc > 0) {
 		phy->irq = rc;
 		mdio->irq[addr] = rc;
@@ -84,22 +88,23 @@ static void of_mdiobus_register_phy(struct mii_bus *mdio,
 	if (rc) {
 		phy_device_free(phy);
 		of_node_put(child);
-		return;
+		return rc;
 	}
 
 	dev_dbg(&mdio->dev, "registered phy %s at address %i\n",
 		child->name, addr);
+	return 0;
 }
 
-static void of_mdiobus_register_device(struct mii_bus *mdio,
-				       struct device_node *child, u32 addr)
+static int of_mdiobus_register_device(struct mii_bus *mdio,
+				      struct device_node *child, u32 addr)
 {
 	struct mdio_device *mdiodev;
 	int rc;
 
 	mdiodev = mdio_device_create(mdio, addr);
 	if (IS_ERR(mdiodev))
-		return;
+		return PTR_ERR(mdiodev);
 
 	/* Associate the OF node with the device structure so it
 	 * can be looked up later.
@@ -112,11 +117,12 @@ static void of_mdiobus_register_device(struct mii_bus *mdio,
 	if (rc) {
 		mdio_device_free(mdiodev);
 		of_node_put(child);
-		return;
+		return rc;
 	}
 
 	dev_dbg(&mdio->dev, "registered mdio device %s at address %i\n",
 		child->name, addr);
+	return 0;
 }
 
 /* The following is a list of PHY compatible strings which appear in
@@ -219,9 +225,11 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 		}
 
 		if (of_mdiobus_child_is_phy(child))
-			of_mdiobus_register_phy(mdio, child, addr);
+			rc = of_mdiobus_register_phy(mdio, child, addr);
 		else
-			of_mdiobus_register_device(mdio, child, addr);
+			rc = of_mdiobus_register_device(mdio, child, addr);
+		if (rc)
+			goto unregister;
 	}
 
 	if (!scanphys)
@@ -242,12 +250,19 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 			dev_info(&mdio->dev, "scan phy %s at address %i\n",
 				 child->name, addr);
 
-			if (of_mdiobus_child_is_phy(child))
-				of_mdiobus_register_phy(mdio, child, addr);
+			if (of_mdiobus_child_is_phy(child)) {
+				rc = of_mdiobus_register_phy(mdio, child, addr);
+				if (rc)
+					goto unregister;
+			}
 		}
 	}
 
 	return 0;
+
+unregister:
+	mdiobus_unregister(mdio);
+	return rc;
 }
 EXPORT_SYMBOL(of_mdiobus_register);
 
diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c
index d507c3569a88..32771c2ced7b 100644
--- a/drivers/of/of_reserved_mem.c
+++ b/drivers/of/of_reserved_mem.c
@@ -25,7 +25,7 @@
 #include <linux/sort.h>
 #include <linux/slab.h>
 
-#define MAX_RESERVED_REGIONS	16
+#define MAX_RESERVED_REGIONS	32
 static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS];
 static int reserved_mem_count;
 
diff --git a/drivers/of/property.c b/drivers/of/property.c
index fbb72116e9d4..8ad33a44a7b8 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -817,9 +817,9 @@ struct device_node *of_graph_get_remote_node(const struct device_node *node,
 }
 EXPORT_SYMBOL(of_graph_get_remote_node);
 
-static void of_fwnode_get(struct fwnode_handle *fwnode)
+static struct fwnode_handle *of_fwnode_get(struct fwnode_handle *fwnode)
 {
-	of_node_get(to_of_node(fwnode));
+	return of_fwnode_handle(of_node_get(to_of_node(fwnode)));
 }
 
 static void of_fwnode_put(struct fwnode_handle *fwnode)
@@ -954,7 +954,7 @@ of_fwnode_graph_get_port_parent(struct fwnode_handle *fwnode)
 	struct device_node *np;
 
 	/* Get the parent of the port */
-	np = of_get_next_parent(to_of_node(fwnode));
+	np = of_get_parent(to_of_node(fwnode));
 	if (!np)
 		return NULL;
 
diff --git a/drivers/of/unittest-data/Makefile b/drivers/of/unittest-data/Makefile
index 2d135fba94c1..3031fc2f18f6 100644
--- a/drivers/of/unittest-data/Makefile
+++ b/drivers/of/unittest-data/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += testcases.dtb.o
 
 targets += testcases.dtb testcases.dtb.S
diff --git a/drivers/of/unittest-data/overlay.dts b/drivers/of/unittest-data/overlay.dts
index 9e791fcf05dd..ab5e89b5e27e 100644
--- a/drivers/of/unittest-data/overlay.dts
+++ b/drivers/of/unittest-data/overlay.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /plugin/;
 
diff --git a/drivers/of/unittest-data/overlay_bad_phandle.dts b/drivers/of/unittest-data/overlay_bad_phandle.dts
index 270ee885a623..4d5b99723bad 100644
--- a/drivers/of/unittest-data/overlay_bad_phandle.dts
+++ b/drivers/of/unittest-data/overlay_bad_phandle.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /plugin/;
 
diff --git a/drivers/of/unittest-data/overlay_base.dts b/drivers/of/unittest-data/overlay_base.dts
index 453d0bd83320..820b79ca378a 100644
--- a/drivers/of/unittest-data/overlay_base.dts
+++ b/drivers/of/unittest-data/overlay_base.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 /plugin/;
 
diff --git a/drivers/of/unittest-data/testcases.dts b/drivers/of/unittest-data/testcases.dts
index 12f7c3d649c8..ce49463d9d32 100644
--- a/drivers/of/unittest-data/testcases.dts
+++ b/drivers/of/unittest-data/testcases.dts
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 / {
 	testcase-data {
diff --git a/drivers/of/unittest-data/tests-interrupts.dtsi b/drivers/of/unittest-data/tests-interrupts.dtsi
index da4695f60351..ec175e800725 100644
--- a/drivers/of/unittest-data/tests-interrupts.dtsi
+++ b/drivers/of/unittest-data/tests-interrupts.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	testcase-data {
diff --git a/drivers/of/unittest-data/tests-match.dtsi b/drivers/of/unittest-data/tests-match.dtsi
index c9e541129534..1fd3b21313f5 100644
--- a/drivers/of/unittest-data/tests-match.dtsi
+++ b/drivers/of/unittest-data/tests-match.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	testcase-data {
diff --git a/drivers/of/unittest-data/tests-overlay.dtsi b/drivers/of/unittest-data/tests-overlay.dtsi
index 02ba56c20fe1..7b8001ab9f3a 100644
--- a/drivers/of/unittest-data/tests-overlay.dtsi
+++ b/drivers/of/unittest-data/tests-overlay.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	testcase-data {
diff --git a/drivers/of/unittest-data/tests-phandle.dtsi b/drivers/of/unittest-data/tests-phandle.dtsi
index 5b1527e8a7fb..3c2f09e56b61 100644
--- a/drivers/of/unittest-data/tests-phandle.dtsi
+++ b/drivers/of/unittest-data/tests-phandle.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	aliases {
diff --git a/drivers/of/unittest-data/tests-platform.dtsi b/drivers/of/unittest-data/tests-platform.dtsi
index a0c93822aee3..fa39611071b3 100644
--- a/drivers/of/unittest-data/tests-platform.dtsi
+++ b/drivers/of/unittest-data/tests-platform.dtsi
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 / {
 	testcase-data {
diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 29a35cb1da64..168ef0bbabde 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Self tests for device tree subsystem
  */
diff --git a/drivers/opp/Kconfig b/drivers/opp/Kconfig
new file mode 100644
index 000000000000..a7fbb93f302c
--- /dev/null
+++ b/drivers/opp/Kconfig
@@ -0,0 +1,13 @@
+config PM_OPP
+	bool
+	select SRCU
+	---help---
+	  SOCs have a standard set of tuples consisting of frequency and
+	  voltage pairs that the device will support per voltage domain. This
+	  is called Operating Performance Point or OPP. The actual definitions
+	  of OPP varies over silicon within the same family of devices.
+
+	  OPP layer organizes the data internally using device pointers
+	  representing individual voltage domains and provides SOC
+	  implementations a ready to use framework to manage OPPs.
+	  For more information, read <file:Documentation/power/opp.txt>
diff --git a/drivers/base/power/opp/Makefile b/drivers/opp/Makefile
index e70ceb406fe9..e70ceb406fe9 100644
--- a/drivers/base/power/opp/Makefile
+++ b/drivers/opp/Makefile
diff --git a/drivers/base/power/opp/core.c b/drivers/opp/core.c
index a8cc14fd8ae4..92fa94a6dcc1 100644
--- a/drivers/base/power/opp/core.c
+++ b/drivers/opp/core.c
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <linux/device.h>
 #include <linux/export.h>
+#include <linux/pm_domain.h>
 #include <linux/regulator/consumer.h>
 
 #include "opp.h"
@@ -296,7 +297,7 @@ int dev_pm_opp_get_opp_count(struct device *dev)
 	opp_table = _find_opp_table(dev);
 	if (IS_ERR(opp_table)) {
 		count = PTR_ERR(opp_table);
-		dev_err(dev, "%s: OPP table not found (%d)\n",
+		dev_dbg(dev, "%s: OPP table not found (%d)\n",
 			__func__, count);
 		return count;
 	}
@@ -535,6 +536,44 @@ _generic_set_opp_clk_only(struct device *dev, struct clk *clk,
 	return ret;
 }
 
+static inline int
+_generic_set_opp_domain(struct device *dev, struct clk *clk,
+			unsigned long old_freq, unsigned long freq,
+			unsigned int old_pstate, unsigned int new_pstate)
+{
+	int ret;
+
+	/* Scaling up? Scale domain performance state before frequency */
+	if (freq > old_freq) {
+		ret = dev_pm_genpd_set_performance_state(dev, new_pstate);
+		if (ret)
+			return ret;
+	}
+
+	ret = _generic_set_opp_clk_only(dev, clk, old_freq, freq);
+	if (ret)
+		goto restore_domain_state;
+
+	/* Scaling down? Scale domain performance state after frequency */
+	if (freq < old_freq) {
+		ret = dev_pm_genpd_set_performance_state(dev, new_pstate);
+		if (ret)
+			goto restore_freq;
+	}
+
+	return 0;
+
+restore_freq:
+	if (_generic_set_opp_clk_only(dev, clk, freq, old_freq))
+		dev_err(dev, "%s: failed to restore old-freq (%lu Hz)\n",
+			__func__, old_freq);
+restore_domain_state:
+	if (freq > old_freq)
+		dev_pm_genpd_set_performance_state(dev, old_pstate);
+
+	return ret;
+}
+
 static int _generic_set_opp_regulator(const struct opp_table *opp_table,
 				      struct device *dev,
 				      unsigned long old_freq,
@@ -653,7 +692,16 @@ int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq)
 
 	/* Only frequency scaling */
 	if (!opp_table->regulators) {
-		ret = _generic_set_opp_clk_only(dev, clk, old_freq, freq);
+		/*
+		 * We don't support devices with both regulator and
+		 * domain performance-state for now.
+		 */
+		if (opp_table->genpd_performance_state)
+			ret = _generic_set_opp_domain(dev, clk, old_freq, freq,
+						      IS_ERR(old_opp) ? 0 : old_opp->pstate,
+						      opp->pstate);
+		else
+			ret = _generic_set_opp_clk_only(dev, clk, old_freq, freq);
 	} else if (!opp_table->set_opp) {
 		ret = _generic_set_opp_regulator(opp_table, dev, old_freq, freq,
 						 IS_ERR(old_opp) ? NULL : old_opp->supplies,
@@ -988,6 +1036,9 @@ int _opp_add(struct device *dev, struct dev_pm_opp *new_opp,
 		return ret;
 	}
 
+	if (opp_table->get_pstate)
+		new_opp->pstate = opp_table->get_pstate(dev, new_opp->rate);
+
 	list_add(&new_opp->node, head);
 	mutex_unlock(&opp_table->lock);
 
@@ -1476,13 +1527,13 @@ err:
 EXPORT_SYMBOL_GPL(dev_pm_opp_register_set_opp_helper);
 
 /**
- * dev_pm_opp_register_put_opp_helper() - Releases resources blocked for
+ * dev_pm_opp_unregister_set_opp_helper() - Releases resources blocked for
  *					   set_opp helper
  * @opp_table: OPP table returned from dev_pm_opp_register_set_opp_helper().
  *
  * Release resources blocked for platform specific set_opp helper.
  */
-void dev_pm_opp_register_put_opp_helper(struct opp_table *opp_table)
+void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table)
 {
 	if (!opp_table->set_opp) {
 		pr_err("%s: Doesn't have custom set_opp helper set\n",
@@ -1497,7 +1548,82 @@ void dev_pm_opp_register_put_opp_helper(struct opp_table *opp_table)
 
 	dev_pm_opp_put_opp_table(opp_table);
 }
-EXPORT_SYMBOL_GPL(dev_pm_opp_register_put_opp_helper);
+EXPORT_SYMBOL_GPL(dev_pm_opp_unregister_set_opp_helper);
+
+/**
+ * dev_pm_opp_register_get_pstate_helper() - Register get_pstate() helper.
+ * @dev: Device for which the helper is getting registered.
+ * @get_pstate: Helper.
+ *
+ * TODO: Remove this callback after the same information is available via Device
+ * Tree.
+ *
+ * This allows a platform to initialize the performance states of individual
+ * OPPs for its devices, until we get similar information directly from DT.
+ *
+ * This must be called before the OPPs are initialized for the device.
+ */
+struct opp_table *dev_pm_opp_register_get_pstate_helper(struct device *dev,
+		int (*get_pstate)(struct device *dev, unsigned long rate))
+{
+	struct opp_table *opp_table;
+	int ret;
+
+	if (!get_pstate)
+		return ERR_PTR(-EINVAL);
+
+	opp_table = dev_pm_opp_get_opp_table(dev);
+	if (!opp_table)
+		return ERR_PTR(-ENOMEM);
+
+	/* This should be called before OPPs are initialized */
+	if (WARN_ON(!list_empty(&opp_table->opp_list))) {
+		ret = -EBUSY;
+		goto err;
+	}
+
+	/* Already have genpd_performance_state set */
+	if (WARN_ON(opp_table->genpd_performance_state)) {
+		ret = -EBUSY;
+		goto err;
+	}
+
+	opp_table->genpd_performance_state = true;
+	opp_table->get_pstate = get_pstate;
+
+	return opp_table;
+
+err:
+	dev_pm_opp_put_opp_table(opp_table);
+
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_register_get_pstate_helper);
+
+/**
+ * dev_pm_opp_unregister_get_pstate_helper() - Releases resources blocked for
+ *					   get_pstate() helper
+ * @opp_table: OPP table returned from dev_pm_opp_register_get_pstate_helper().
+ *
+ * Release resources blocked for platform specific get_pstate() helper.
+ */
+void dev_pm_opp_unregister_get_pstate_helper(struct opp_table *opp_table)
+{
+	if (!opp_table->genpd_performance_state) {
+		pr_err("%s: Doesn't have performance states set\n",
+		       __func__);
+		return;
+	}
+
+	/* Make sure there are no concurrent readers while updating opp_table */
+	WARN_ON(!list_empty(&opp_table->opp_list));
+
+	opp_table->genpd_performance_state = false;
+	opp_table->get_pstate = NULL;
+
+	dev_pm_opp_put_opp_table(opp_table);
+}
+EXPORT_SYMBOL_GPL(dev_pm_opp_unregister_get_pstate_helper);
 
 /**
  * dev_pm_opp_add()  - Add an OPP table from a table definitions
@@ -1581,6 +1707,9 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
 
 	opp->available = availability_req;
 
+	dev_pm_opp_get(opp);
+	mutex_unlock(&opp_table->lock);
+
 	/* Notify the change of the OPP availability */
 	if (availability_req)
 		blocking_notifier_call_chain(&opp_table->head, OPP_EVENT_ENABLE,
@@ -1589,8 +1718,12 @@ static int _opp_set_availability(struct device *dev, unsigned long freq,
 		blocking_notifier_call_chain(&opp_table->head,
 					     OPP_EVENT_DISABLE, opp);
 
+	dev_pm_opp_put(opp);
+	goto put_table;
+
 unlock:
 	mutex_unlock(&opp_table->lock);
+put_table:
 	dev_pm_opp_put_opp_table(opp_table);
 	return r;
 }
@@ -1699,6 +1832,13 @@ void _dev_pm_opp_remove_table(struct opp_table *opp_table, struct device *dev,
 			if (remove_all || !opp->dynamic)
 				dev_pm_opp_put(opp);
 		}
+
+		/*
+		 * The OPP table is getting removed, drop the performance state
+		 * constraints.
+		 */
+		if (opp_table->genpd_performance_state)
+			dev_pm_genpd_set_performance_state(dev, 0);
 	} else {
 		_remove_opp_dev(_find_opp_dev(dev, opp_table), opp_table);
 	}
diff --git a/drivers/base/power/opp/cpu.c b/drivers/opp/cpu.c
index 2d87bc1adf38..2d87bc1adf38 100644
--- a/drivers/base/power/opp/cpu.c
+++ b/drivers/opp/cpu.c
diff --git a/drivers/base/power/opp/debugfs.c b/drivers/opp/debugfs.c
index 81cf120fcf43..b03c03576a62 100644
--- a/drivers/base/power/opp/debugfs.c
+++ b/drivers/opp/debugfs.c
@@ -41,16 +41,15 @@ static bool opp_debug_create_supplies(struct dev_pm_opp *opp,
 {
 	struct dentry *d;
 	int i;
-	char *name;
 
 	for (i = 0; i < opp_table->regulator_count; i++) {
-		name = kasprintf(GFP_KERNEL, "supply-%d", i);
+		char name[15];
+
+		snprintf(name, sizeof(name), "supply-%d", i);
 
 		/* Create per-opp directory */
 		d = debugfs_create_dir(name, pdentry);
 
-		kfree(name);
-
 		if (!d)
 			return false;
 
@@ -100,6 +99,9 @@ int opp_debug_create_one(struct dev_pm_opp *opp, struct opp_table *opp_table)
 	if (!debugfs_create_bool("suspend", S_IRUGO, d, &opp->suspend))
 		return -ENOMEM;
 
+	if (!debugfs_create_u32("performance_state", S_IRUGO, d, &opp->pstate))
+		return -ENOMEM;
+
 	if (!debugfs_create_ulong("rate_hz", S_IRUGO, d, &opp->rate))
 		return -ENOMEM;
 
diff --git a/drivers/base/power/opp/of.c b/drivers/opp/of.c
index 0b718886479b..cb716aa2f44b 100644
--- a/drivers/base/power/opp/of.c
+++ b/drivers/opp/of.c
@@ -16,7 +16,7 @@
 #include <linux/cpu.h>
 #include <linux/errno.h>
 #include <linux/device.h>
-#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/slab.h>
 #include <linux/export.h>
 
@@ -397,6 +397,7 @@ static int _of_add_opp_table_v2(struct device *dev, struct device_node *opp_np)
 			dev_err(dev, "%s: Failed to add OPP, %d\n", __func__,
 				ret);
 			_dev_pm_opp_remove_table(opp_table, dev, false);
+			of_node_put(np);
 			goto put_opp_table;
 		}
 	}
@@ -603,7 +604,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
 		if (cpu == cpu_dev->id)
 			continue;
 
-		cpu_np = of_get_cpu_node(cpu, NULL);
+		cpu_np = of_cpu_device_node_get(cpu);
 		if (!cpu_np) {
 			dev_err(cpu_dev, "%s: failed to get cpu%d node\n",
 				__func__, cpu);
@@ -613,6 +614,7 @@ int dev_pm_opp_of_get_sharing_cpus(struct device *cpu_dev,
 
 		/* Get OPP descriptor node */
 		tmp_np = _opp_of_get_opp_desc_node(cpu_np);
+		of_node_put(cpu_np);
 		if (!tmp_np) {
 			pr_err("%pOF: Couldn't find opp node\n", cpu_np);
 			ret = -ENOENT;
diff --git a/drivers/base/power/opp/opp.h b/drivers/opp/opp.h
index 166eef990599..4d00061648a3 100644
--- a/drivers/base/power/opp/opp.h
+++ b/drivers/opp/opp.h
@@ -58,6 +58,7 @@ extern struct list_head opp_tables;
  * @dynamic:	not-created from static DT entries.
  * @turbo:	true if turbo (boost) OPP
  * @suspend:	true if suspend OPP
+ * @pstate: Device's power domain's performance state.
  * @rate:	Frequency in hertz
  * @supplies:	Power supplies voltage/current values
  * @clock_latency_ns: Latency (in nanoseconds) of switching to this OPP's
@@ -76,6 +77,7 @@ struct dev_pm_opp {
 	bool dynamic;
 	bool turbo;
 	bool suspend;
+	unsigned int pstate;
 	unsigned long rate;
 
 	struct dev_pm_opp_supply *supplies;
@@ -135,8 +137,10 @@ enum opp_table_access {
  * @clk: Device's clock handle
  * @regulators: Supply regulators
  * @regulator_count: Number of power supply regulators
+ * @genpd_performance_state: Device's power domain support performance state.
  * @set_opp: Platform specific set_opp callback
  * @set_opp_data: Data to be passed to set_opp callback
+ * @get_pstate: Platform specific get_pstate callback
  * @dentry:	debugfs dentry pointer of the real device directory (not links).
  * @dentry_name: Name of the real dentry.
  *
@@ -170,9 +174,11 @@ struct opp_table {
 	struct clk *clk;
 	struct regulator **regulators;
 	unsigned int regulator_count;
+	bool genpd_performance_state;
 
 	int (*set_opp)(struct dev_pm_set_opp_data *data);
 	struct dev_pm_set_opp_data *set_opp_data;
+	int (*get_pstate)(struct device *dev, unsigned long rate);
 
 #ifdef CONFIG_DEBUG_FS
 	struct dentry *dentry;
diff --git a/drivers/oprofile/nmi_timer_int.c b/drivers/oprofile/nmi_timer_int.c
index e65a576e4032..f343bd96609a 100644
--- a/drivers/oprofile/nmi_timer_int.c
+++ b/drivers/oprofile/nmi_timer_int.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * @file nmi_timer_int.c
  *
diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c
index d5b2732b1b81..4b150a754890 100644
--- a/drivers/oprofile/oprofile_perf.c
+++ b/drivers/oprofile/oprofile_perf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2010 ARM Ltd.
  * Copyright 2012 Advanced Micro Devices, Inc., Robert Richter
diff --git a/drivers/parisc/Makefile b/drivers/parisc/Makefile
index f95cab57133a..3cd5e6cb8478 100644
--- a/drivers/parisc/Makefile
+++ b/drivers/parisc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for most of the non-PCI devices in PA-RISC machines
 #
diff --git a/drivers/parisc/iommu-helpers.h b/drivers/parisc/iommu-helpers.h
index e56f1569f6c3..0905be256de0 100644
--- a/drivers/parisc/iommu-helpers.h
+++ b/drivers/parisc/iommu-helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/prefetch.h>
 
 /**
diff --git a/drivers/parport/Makefile b/drivers/parport/Makefile
index 696b8d4ca887..6fa41f8173b6 100644
--- a/drivers/parport/Makefile
+++ b/drivers/parport/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel Parallel port device drivers.
 #
diff --git a/drivers/parport/ieee1284.c b/drivers/parport/ieee1284.c
index 74cc6dd982d2..2d1a5c737c6e 100644
--- a/drivers/parport/ieee1284.c
+++ b/drivers/parport/ieee1284.c
@@ -44,10 +44,11 @@ static void parport_ieee1284_wakeup (struct parport *port)
 	up (&port->physport->ieee1284.irq);
 }
 
-static struct parport *port_from_cookie[PARPORT_MAX];
-static void timeout_waiting_on_port (unsigned long cookie)
+static void timeout_waiting_on_port (struct timer_list *t)
 {
-	parport_ieee1284_wakeup (port_from_cookie[cookie % PARPORT_MAX]);
+	struct parport *port = from_timer(port, t, timer);
+
+	parport_ieee1284_wakeup (port);
 }
 
 /**
@@ -69,27 +70,19 @@ static void timeout_waiting_on_port (unsigned long cookie)
 int parport_wait_event (struct parport *port, signed long timeout)
 {
 	int ret;
-	struct timer_list timer;
 
 	if (!port->physport->cad->timeout)
 		/* Zero timeout is special, and we can't down() the
 		   semaphore. */
 		return 1;
 
-	init_timer_on_stack(&timer);
-	timer.expires = jiffies + timeout;
-	timer.function = timeout_waiting_on_port;
-	port_from_cookie[port->number % PARPORT_MAX] = port;
-	timer.data = port->number;
-
-	add_timer (&timer);
+	timer_setup(&port->timer, timeout_waiting_on_port, 0);
+	mod_timer(&port->timer, jiffies + timeout);
 	ret = down_interruptible (&port->physport->ieee1284.irq);
-	if (!del_timer_sync(&timer) && !ret)
+	if (!del_timer_sync(&port->timer) && !ret)
 		/* Timed out. */
 		ret = 1;
 
-	destroy_timer_on_stack(&timer);
-
 	return ret;
 }
 
diff --git a/drivers/parport/ieee1284_ops.c b/drivers/parport/ieee1284_ops.c
index a959224d011b..5d41dda6da4e 100644
--- a/drivers/parport/ieee1284_ops.c
+++ b/drivers/parport/ieee1284_ops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* IEEE-1284 operations for parport.
  *
  * This file is for generic IEEE 1284 operations.  The idea is that
diff --git a/drivers/parport/multiface.h b/drivers/parport/multiface.h
index 56769dd5d315..6513a44b9ca7 100644
--- a/drivers/parport/multiface.h
+++ b/drivers/parport/multiface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MULTIFACE_H_
 #define _MULTIFACE_H_
 
diff --git a/drivers/parport/probe.c b/drivers/parport/probe.c
index 4d1d6eaf333d..e035174ba205 100644
--- a/drivers/parport/probe.c
+++ b/drivers/parport/probe.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Parallel port device probing code
  *
diff --git a/drivers/parport/procfs.c b/drivers/parport/procfs.c
index 8ee44a104ac4..48804049d697 100644
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Sysctl interface for parport devices.
  * 
  * Authors: David Campbell
diff --git a/drivers/pci/Makefile b/drivers/pci/Makefile
index 66a21acad952..80adbdbcecce 100644
--- a/drivers/pci/Makefile
+++ b/drivers/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the PCI bus specific drivers.
 #
diff --git a/drivers/pci/dwc/Makefile b/drivers/pci/dwc/Makefile
index c61be9738cce..e73661182da0 100644
--- a/drivers/pci/dwc/Makefile
+++ b/drivers/pci/dwc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PCIE_DW) += pcie-designware.o
 obj-$(CONFIG_PCIE_DW_HOST) += pcie-designware-host.o
 obj-$(CONFIG_PCIE_DW_EP) += pcie-designware-ep.o
diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c
index 34427a6a15af..362607f727ee 100644
--- a/drivers/pci/dwc/pci-dra7xx.c
+++ b/drivers/pci/dwc/pci-dra7xx.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/device.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -594,6 +595,7 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
 	int i;
 	int phy_count;
 	struct phy **phy;
+	struct device_link **link;
 	void __iomem *base;
 	struct resource *res;
 	struct dw_pcie *pci;
@@ -649,11 +651,21 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
 	if (!phy)
 		return -ENOMEM;
 
+	link = devm_kzalloc(dev, sizeof(*link) * phy_count, GFP_KERNEL);
+	if (!link)
+		return -ENOMEM;
+
 	for (i = 0; i < phy_count; i++) {
 		snprintf(name, sizeof(name), "pcie-phy%d", i);
 		phy[i] = devm_phy_get(dev, name);
 		if (IS_ERR(phy[i]))
 			return PTR_ERR(phy[i]);
+
+		link[i] = device_link_add(dev, &phy[i]->dev, DL_FLAG_STATELESS);
+		if (!link[i]) {
+			ret = -EINVAL;
+			goto err_link;
+		}
 	}
 
 	dra7xx->base = base;
@@ -732,6 +744,10 @@ err_get_sync:
 	pm_runtime_disable(dev);
 	dra7xx_pcie_disable_phy(dra7xx);
 
+err_link:
+	while (--i >= 0)
+		device_link_del(link[i]);
+
 	return ret;
 }
 
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 4ddc6e8f9fe7..f9308c2f22e6 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -251,9 +251,8 @@ err:
 	return ret;
 }
 
-static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test)
+static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test, u8 irq)
 {
-	u8 irq;
 	u8 msi_count;
 	struct pci_epf *epf = epf_test->epf;
 	struct pci_epc *epc = epf->epc;
@@ -262,7 +261,6 @@ static void pci_epf_test_raise_irq(struct pci_epf_test *epf_test)
 
 	reg->status |= STATUS_IRQ_RAISED;
 	msi_count = pci_epc_get_msi(epc);
-	irq = (reg->command & MSI_NUMBER_MASK) >> MSI_NUMBER_SHIFT;
 	if (irq > msi_count || msi_count <= 0)
 		pci_epc_raise_irq(epc, PCI_EPC_IRQ_LEGACY, 0);
 	else
@@ -289,6 +287,8 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
 	reg->command = 0;
 	reg->status = 0;
 
+	irq = (command & MSI_NUMBER_MASK) >> MSI_NUMBER_SHIFT;
+
 	if (command & COMMAND_RAISE_LEGACY_IRQ) {
 		reg->status = STATUS_IRQ_RAISED;
 		pci_epc_raise_irq(epc, PCI_EPC_IRQ_LEGACY, 0);
@@ -301,7 +301,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
 			reg->status |= STATUS_WRITE_FAIL;
 		else
 			reg->status |= STATUS_WRITE_SUCCESS;
-		pci_epf_test_raise_irq(epf_test);
+		pci_epf_test_raise_irq(epf_test, irq);
 		goto reset_handler;
 	}
 
@@ -311,7 +311,7 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
 			reg->status |= STATUS_READ_SUCCESS;
 		else
 			reg->status |= STATUS_READ_FAIL;
-		pci_epf_test_raise_irq(epf_test);
+		pci_epf_test_raise_irq(epf_test, irq);
 		goto reset_handler;
 	}
 
@@ -321,13 +321,12 @@ static void pci_epf_test_cmd_handler(struct work_struct *work)
 			reg->status |= STATUS_COPY_SUCCESS;
 		else
 			reg->status |= STATUS_COPY_FAIL;
-		pci_epf_test_raise_irq(epf_test);
+		pci_epf_test_raise_irq(epf_test, irq);
 		goto reset_handler;
 	}
 
 	if (command & COMMAND_RAISE_MSI_IRQ) {
 		msi_count = pci_epc_get_msi(epc);
-		irq = (command & MSI_NUMBER_MASK) >> MSI_NUMBER_SHIFT;
 		if (irq > msi_count || msi_count <= 0)
 			goto reset_handler;
 		reg->status = STATUS_IRQ_RAISED;
diff --git a/drivers/pci/endpoint/pci-ep-cfs.c b/drivers/pci/endpoint/pci-ep-cfs.c
index 424fdd6ed1ca..4f74386c1ced 100644
--- a/drivers/pci/endpoint/pci-ep-cfs.c
+++ b/drivers/pci/endpoint/pci-ep-cfs.c
@@ -150,7 +150,7 @@ static struct configfs_item_operations pci_epc_item_ops = {
 	.drop_link	= pci_epc_epf_unlink,
 };
 
-static struct config_item_type pci_epc_type = {
+static const struct config_item_type pci_epc_type = {
 	.ct_item_ops	= &pci_epc_item_ops,
 	.ct_attrs	= pci_epc_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -361,7 +361,7 @@ static struct configfs_item_operations pci_epf_ops = {
 	.release		= pci_epf_release,
 };
 
-static struct config_item_type pci_epf_type = {
+static const struct config_item_type pci_epf_type = {
 	.ct_item_ops	= &pci_epf_ops,
 	.ct_attrs	= pci_epf_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -400,7 +400,7 @@ static struct configfs_group_operations pci_epf_group_ops = {
 	.drop_item      = &pci_epf_drop,
 };
 
-static struct config_item_type pci_epf_group_type = {
+static const struct config_item_type pci_epf_group_type = {
 	.ct_group_ops	= &pci_epf_group_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -428,15 +428,15 @@ void pci_ep_cfs_remove_epf_group(struct config_group *group)
 }
 EXPORT_SYMBOL(pci_ep_cfs_remove_epf_group);
 
-static struct config_item_type pci_functions_type = {
+static const struct config_item_type pci_functions_type = {
 	.ct_owner	= THIS_MODULE,
 };
 
-static struct config_item_type pci_controllers_type = {
+static const struct config_item_type pci_controllers_type = {
 	.ct_owner	= THIS_MODULE,
 };
 
-static struct config_item_type pci_ep_type = {
+static const struct config_item_type pci_ep_type = {
 	.ct_owner	= THIS_MODULE,
 };
 
diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
index 12382785e02a..95f5b80ca52a 100644
--- a/drivers/pci/host/Makefile
+++ b/drivers/pci/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PCI_FTPCI100) += pci-ftpci100.o
 obj-$(CONFIG_PCI_HYPERV) += pci-hyperv.o
 obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o
diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
index 89f4e3d072d7..26ed0c08f209 100644
--- a/drivers/pci/host/pci-aardvark.c
+++ b/drivers/pci/host/pci-aardvark.c
@@ -935,6 +935,8 @@ static int advk_pcie_probe(struct platform_device *pdev)
 	bridge->sysdata = pcie;
 	bridge->busnr = 0;
 	bridge->ops = &advk_pcie_ops;
+	bridge->map_irq = of_irq_parse_and_map_pci;
+	bridge->swizzle_irq = pci_common_swizzle;
 
 	ret = pci_scan_root_bus_bridge(bridge);
 	if (ret < 0) {
diff --git a/drivers/pci/host/pci-ftpci100.c b/drivers/pci/host/pci-ftpci100.c
index 96028f01bc90..4ea7d2ebcc5c 100644
--- a/drivers/pci/host/pci-ftpci100.c
+++ b/drivers/pci/host/pci-ftpci100.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Support for Faraday Technology FTPC100 PCI Controller
  *
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 9c40da54f88a..1987fec1f126 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -233,6 +233,7 @@ struct tegra_msi {
 	struct msi_controller chip;
 	DECLARE_BITMAP(used, INT_PCI_MSI_NR);
 	struct irq_domain *domain;
+	unsigned long pages;
 	struct mutex lock;
 	u64 phys;
 	int irq;
@@ -1529,22 +1530,9 @@ static int tegra_pcie_enable_msi(struct tegra_pcie *pcie)
 		goto err;
 	}
 
-	/*
-	 * The PCI host bridge on Tegra contains some logic that intercepts
-	 * MSI writes, which means that the MSI target address doesn't have
-	 * to point to actual physical memory. Rather than allocating one 4
-	 * KiB page of system memory that's never used, we can simply pick
-	 * an arbitrary address within an area reserved for system memory
-	 * in the FPCI address map.
-	 *
-	 * However, in order to avoid confusion, we pick an address that
-	 * doesn't map to physical memory. The FPCI address map reserves a
-	 * 1012 GiB region for system memory and memory-mapped I/O. Since
-	 * none of the Tegra SoCs that contain this PCI host bridge can
-	 * address more than 16 GiB of system memory, the last 4 KiB of
-	 * these 1012 GiB is a good candidate.
-	 */
-	msi->phys = 0xfcfffff000;
+	/* setup AFI/FPCI range */
+	msi->pages = __get_free_pages(GFP_KERNEL, 0);
+	msi->phys = virt_to_phys((void *)msi->pages);
 
 	afi_writel(pcie, msi->phys >> soc->msi_base_shift, AFI_MSI_FPCI_BAR_ST);
 	afi_writel(pcie, msi->phys, AFI_MSI_AXI_BAR_ST);
@@ -1596,6 +1584,8 @@ static int tegra_pcie_disable_msi(struct tegra_pcie *pcie)
 	afi_writel(pcie, 0, AFI_MSI_EN_VEC6);
 	afi_writel(pcie, 0, AFI_MSI_EN_VEC7);
 
+	free_pages(msi->pages, 0);
+
 	if (msi->irq > 0)
 		free_irq(msi->irq, pcie);
 
diff --git a/drivers/pci/host/pcie-tango.c b/drivers/pci/host/pcie-tango.c
index 6bbb81f06a53..95049de4131c 100644
--- a/drivers/pci/host/pcie-tango.c
+++ b/drivers/pci/host/pcie-tango.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/pci-ecam.h>
 #include <linux/delay.h>
 #include <linux/of.h>
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index e33cdda45a4d..7e3331603714 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux kernel pci hotplug controller drivers.
 #
diff --git a/drivers/pci/htirq.c b/drivers/pci/htirq.c
index 7eb4109a3df4..bb88c26f5144 100644
--- a/drivers/pci/htirq.c
+++ b/drivers/pci/htirq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * File:	htirq.c
  * Purpose:	Hypertransport Interrupt Capability
diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c
index 83d30953ce19..10929cd43d5d 100644
--- a/drivers/pci/irq.c
+++ b/drivers/pci/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI IRQ handling code
  *
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 496ed9130600..e06607167858 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -1441,6 +1441,8 @@ struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
 		pci_msi_domain_update_chip_ops(info);
 
 	info->flags |= MSI_FLAG_ACTIVATE_EARLY;
+	if (IS_ENABLED(CONFIG_GENERIC_IRQ_RESERVATION_MODE))
+		info->flags |= MSI_FLAG_MUST_REACTIVATE;
 
 	domain = msi_create_irq_domain(fwnode, info, parent);
 	if (!domain)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 11bd267fc137..07b8a9b385ab 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -680,17 +680,13 @@ static int pci_pm_prepare(struct device *dev)
 {
 	struct device_driver *drv = dev->driver;
 
-	/*
-	 * Devices having power.ignore_children set may still be necessary for
-	 * suspending their children in the next phase of device suspend.
-	 */
-	if (dev->power.ignore_children)
-		pm_runtime_resume(dev);
-
 	if (drv && drv->pm && drv->pm->prepare) {
 		int error = drv->pm->prepare(dev);
-		if (error)
+		if (error < 0)
 			return error;
+
+		if (!error && dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_PREPARE))
+			return 0;
 	}
 	return pci_dev_keep_suspended(to_pci_dev(dev));
 }
@@ -731,18 +727,25 @@ static int pci_pm_suspend(struct device *dev)
 
 	if (!pm) {
 		pci_pm_default_suspend(pci_dev);
-		goto Fixup;
+		return 0;
 	}
 
 	/*
-	 * PCI devices suspended at run time need to be resumed at this point,
-	 * because in general it is necessary to reconfigure them for system
-	 * suspend.  Namely, if the device is supposed to wake up the system
-	 * from the sleep state, we may need to reconfigure it for this purpose.
-	 * In turn, if the device is not supposed to wake up the system from the
-	 * sleep state, we'll have to prevent it from signaling wake-up.
+	 * PCI devices suspended at run time may need to be resumed at this
+	 * point, because in general it may be necessary to reconfigure them for
+	 * system suspend.  Namely, if the device is expected to wake up the
+	 * system from the sleep state, it may have to be reconfigured for this
+	 * purpose, or if the device is not expected to wake up the system from
+	 * the sleep state, it should be prevented from signaling wakeup events
+	 * going forward.
+	 *
+	 * Also if the driver of the device does not indicate that its system
+	 * suspend callbacks can cope with runtime-suspended devices, it is
+	 * better to resume the device from runtime suspend here.
 	 */
-	pm_runtime_resume(dev);
+	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+	    !pci_dev_keep_suspended(pci_dev))
+		pm_runtime_resume(dev);
 
 	pci_dev->state_saved = false;
 	if (pm->suspend) {
@@ -762,17 +765,27 @@ static int pci_pm_suspend(struct device *dev)
 		}
 	}
 
- Fixup:
-	pci_fixup_device(pci_fixup_suspend, pci_dev);
-
 	return 0;
 }
 
+static int pci_pm_suspend_late(struct device *dev)
+{
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev));
+
+	return pm_generic_suspend_late(dev);
+}
+
 static int pci_pm_suspend_noirq(struct device *dev)
 {
 	struct pci_dev *pci_dev = to_pci_dev(dev);
 	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
 
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
 	if (pci_has_legacy_pm_support(pci_dev))
 		return pci_legacy_suspend_late(dev, PMSG_SUSPEND);
 
@@ -805,6 +818,9 @@ static int pci_pm_suspend_noirq(struct device *dev)
 			pci_prepare_to_sleep(pci_dev);
 	}
 
+	dev_dbg(dev, "PCI PM: Suspend power state: %s\n",
+		pci_power_name(pci_dev->current_state));
+
 	pci_pm_set_unknown_state(pci_dev);
 
 	/*
@@ -831,6 +847,14 @@ static int pci_pm_resume_noirq(struct device *dev)
 	struct device_driver *drv = dev->driver;
 	int error = 0;
 
+	/*
+	 * Devices with DPM_FLAG_SMART_SUSPEND may be left in runtime suspend
+	 * during system suspend, so update their runtime PM status to "active"
+	 * as they are going to be put into D0 shortly.
+	 */
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		pm_runtime_set_active(dev);
+
 	pci_pm_default_resume_early(pci_dev);
 
 	if (pci_has_legacy_pm_support(pci_dev))
@@ -873,6 +897,7 @@ static int pci_pm_resume(struct device *dev)
 #else /* !CONFIG_SUSPEND */
 
 #define pci_pm_suspend		NULL
+#define pci_pm_suspend_late	NULL
 #define pci_pm_suspend_noirq	NULL
 #define pci_pm_resume		NULL
 #define pci_pm_resume_noirq	NULL
@@ -907,7 +932,8 @@ static int pci_pm_freeze(struct device *dev)
 	 * devices should not be touched during freeze/thaw transitions,
 	 * however.
 	 */
-	pm_runtime_resume(dev);
+	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND))
+		pm_runtime_resume(dev);
 
 	pci_dev->state_saved = false;
 	if (pm->freeze) {
@@ -919,17 +945,25 @@ static int pci_pm_freeze(struct device *dev)
 			return error;
 	}
 
-	if (pcibios_pm_ops.freeze)
-		return pcibios_pm_ops.freeze(dev);
-
 	return 0;
 }
 
+static int pci_pm_freeze_late(struct device *dev)
+{
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
+	return pm_generic_freeze_late(dev);;
+}
+
 static int pci_pm_freeze_noirq(struct device *dev)
 {
 	struct pci_dev *pci_dev = to_pci_dev(dev);
 	struct device_driver *drv = dev->driver;
 
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
 	if (pci_has_legacy_pm_support(pci_dev))
 		return pci_legacy_suspend_late(dev, PMSG_FREEZE);
 
@@ -959,6 +993,16 @@ static int pci_pm_thaw_noirq(struct device *dev)
 	struct device_driver *drv = dev->driver;
 	int error = 0;
 
+	/*
+	 * If the device is in runtime suspend, the code below may not work
+	 * correctly with it, so skip that code and make the PM core skip all of
+	 * the subsequent "thaw" callbacks for the device.
+	 */
+	if (dev_pm_smart_suspend_and_suspended(dev)) {
+		dev->power.direct_complete = true;
+		return 0;
+	}
+
 	if (pcibios_pm_ops.thaw_noirq) {
 		error = pcibios_pm_ops.thaw_noirq(dev);
 		if (error)
@@ -983,12 +1027,6 @@ static int pci_pm_thaw(struct device *dev)
 	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
 	int error = 0;
 
-	if (pcibios_pm_ops.thaw) {
-		error = pcibios_pm_ops.thaw(dev);
-		if (error)
-			return error;
-	}
-
 	if (pci_has_legacy_pm_support(pci_dev))
 		return pci_legacy_resume(dev);
 
@@ -1014,11 +1052,13 @@ static int pci_pm_poweroff(struct device *dev)
 
 	if (!pm) {
 		pci_pm_default_suspend(pci_dev);
-		goto Fixup;
+		return 0;
 	}
 
 	/* The reason to do that is the same as in pci_pm_suspend(). */
-	pm_runtime_resume(dev);
+	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+	    !pci_dev_keep_suspended(pci_dev))
+		pm_runtime_resume(dev);
 
 	pci_dev->state_saved = false;
 	if (pm->poweroff) {
@@ -1030,13 +1070,17 @@ static int pci_pm_poweroff(struct device *dev)
 			return error;
 	}
 
- Fixup:
-	pci_fixup_device(pci_fixup_suspend, pci_dev);
+	return 0;
+}
 
-	if (pcibios_pm_ops.poweroff)
-		return pcibios_pm_ops.poweroff(dev);
+static int pci_pm_poweroff_late(struct device *dev)
+{
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
 
-	return 0;
+	pci_fixup_device(pci_fixup_suspend, to_pci_dev(dev));
+
+	return pm_generic_poweroff_late(dev);
 }
 
 static int pci_pm_poweroff_noirq(struct device *dev)
@@ -1044,6 +1088,9 @@ static int pci_pm_poweroff_noirq(struct device *dev)
 	struct pci_dev *pci_dev = to_pci_dev(dev);
 	struct device_driver *drv = dev->driver;
 
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		return 0;
+
 	if (pci_has_legacy_pm_support(to_pci_dev(dev)))
 		return pci_legacy_suspend_late(dev, PMSG_HIBERNATE);
 
@@ -1085,6 +1132,10 @@ static int pci_pm_restore_noirq(struct device *dev)
 	struct device_driver *drv = dev->driver;
 	int error = 0;
 
+	/* This is analogous to the pci_pm_resume_noirq() case. */
+	if (dev_pm_smart_suspend_and_suspended(dev))
+		pm_runtime_set_active(dev);
+
 	if (pcibios_pm_ops.restore_noirq) {
 		error = pcibios_pm_ops.restore_noirq(dev);
 		if (error)
@@ -1108,12 +1159,6 @@ static int pci_pm_restore(struct device *dev)
 	const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
 	int error = 0;
 
-	if (pcibios_pm_ops.restore) {
-		error = pcibios_pm_ops.restore(dev);
-		if (error)
-			return error;
-	}
-
 	/*
 	 * This is necessary for the hibernation error path in which restore is
 	 * called without restoring the standard config registers of the device.
@@ -1139,10 +1184,12 @@ static int pci_pm_restore(struct device *dev)
 #else /* !CONFIG_HIBERNATE_CALLBACKS */
 
 #define pci_pm_freeze		NULL
+#define pci_pm_freeze_late	NULL
 #define pci_pm_freeze_noirq	NULL
 #define pci_pm_thaw		NULL
 #define pci_pm_thaw_noirq	NULL
 #define pci_pm_poweroff		NULL
+#define pci_pm_poweroff_late	NULL
 #define pci_pm_poweroff_noirq	NULL
 #define pci_pm_restore		NULL
 #define pci_pm_restore_noirq	NULL
@@ -1258,10 +1305,13 @@ static const struct dev_pm_ops pci_dev_pm_ops = {
 	.prepare = pci_pm_prepare,
 	.complete = pci_pm_complete,
 	.suspend = pci_pm_suspend,
+	.suspend_late = pci_pm_suspend_late,
 	.resume = pci_pm_resume,
 	.freeze = pci_pm_freeze,
+	.freeze_late = pci_pm_freeze_late,
 	.thaw = pci_pm_thaw,
 	.poweroff = pci_pm_poweroff,
+	.poweroff_late = pci_pm_poweroff_late,
 	.restore = pci_pm_restore,
 	.suspend_noirq = pci_pm_suspend_noirq,
 	.resume_noirq = pci_pm_resume_noirq,
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index 7e9e79575d93..a961a71d950f 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Purpose: Export the firmware instance and label associated with
  * a pci device to sysfs
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 1eecfa301f7f..00fa4278c1f4 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pci/pci-sysfs.c
  *
@@ -686,7 +687,7 @@ static ssize_t driver_override_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
-	char *driver_override, *old = pdev->driver_override, *cp;
+	char *driver_override, *old, *cp;
 
 	/* We need to keep extra room for a newline */
 	if (count >= (PAGE_SIZE - 1))
@@ -700,12 +701,15 @@ static ssize_t driver_override_store(struct device *dev,
 	if (cp)
 		*cp = '\0';
 
+	device_lock(dev);
+	old = pdev->driver_override;
 	if (strlen(driver_override)) {
 		pdev->driver_override = driver_override;
 	} else {
 		kfree(driver_override);
 		pdev->driver_override = NULL;
 	}
+	device_unlock(dev);
 
 	kfree(old);
 
@@ -716,8 +720,12 @@ static ssize_t driver_override_show(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
+	ssize_t len;
 
-	return snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+	device_lock(dev);
+	len = snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override);
+	device_unlock(dev);
+	return len;
 }
 static DEVICE_ATTR_RW(driver_override);
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index b0002daa50f3..374f5686e2bc 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -52,7 +52,6 @@ static void pci_pme_list_scan(struct work_struct *work);
 static LIST_HEAD(pci_pme_list);
 static DEFINE_MUTEX(pci_pme_list_mutex);
 static DECLARE_DELAYED_WORK(pci_pme_work, pci_pme_list_scan);
-static DEFINE_MUTEX(pci_bridge_mutex);
 
 struct pci_pme_device {
 	struct list_head list;
@@ -1351,16 +1350,10 @@ static void pci_enable_bridge(struct pci_dev *dev)
 	if (bridge)
 		pci_enable_bridge(bridge);
 
-	/*
-	 * Hold pci_bridge_mutex to prevent a race when enabling two
-	 * devices below the bridge simultaneously.  The race may cause a
-	 * PCI_COMMAND_MEMORY update to be lost (see changelog).
-	 */
-	mutex_lock(&pci_bridge_mutex);
 	if (pci_is_enabled(dev)) {
 		if (!dev->is_busmaster)
 			pci_set_master(dev);
-		goto end;
+		return;
 	}
 
 	retval = pci_enable_device(dev);
@@ -1368,8 +1361,6 @@ static void pci_enable_bridge(struct pci_dev *dev)
 		dev_err(&dev->dev, "Error enabling bridge (%d), continuing\n",
 			retval);
 	pci_set_master(dev);
-end:
-	mutex_unlock(&pci_bridge_mutex);
 }
 
 static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags)
@@ -1394,7 +1385,7 @@ static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags)
 		return 0;		/* already enabled */
 
 	bridge = pci_upstream_bridge(dev);
-	if (bridge && !pci_is_enabled(bridge))
+	if (bridge)
 		pci_enable_bridge(bridge);
 
 	/* only skip sriov related */
@@ -2175,8 +2166,7 @@ bool pci_dev_keep_suspended(struct pci_dev *pci_dev)
 
 	if (!pm_runtime_suspended(dev)
 	    || pci_target_state(pci_dev, wakeup) != pci_dev->current_state
-	    || platform_pci_need_resume(pci_dev)
-	    || (pci_dev->dev_flags & PCI_DEV_FLAGS_NEEDS_RESUME))
+	    || platform_pci_need_resume(pci_dev))
 		return false;
 
 	/*
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index a6560c9baa52..fdb02c1f94bb 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRIVERS_PCI_H
 #define DRIVERS_PCI_H
 
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile
index 36e35ea8fde7..223e4c34c29a 100644
--- a/drivers/pci/pcie/Makefile
+++ b/drivers/pci/pcie/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for PCI-Express PORT Driver
 #
diff --git a/drivers/pci/pcie/aer/Makefile b/drivers/pci/pcie/aer/Makefile
index 2cba67510dc8..09bd890875a3 100644
--- a/drivers/pci/pcie/aer/Makefile
+++ b/drivers/pci/pcie/aer/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for PCI-Express Root Port Advanced Error Reporting Driver
 #
diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h
index d51e4a57b190..5449e5ce139d 100644
--- a/drivers/pci/pcie/aer/aerdrv.h
+++ b/drivers/pci/pcie/aer/aerdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2006 Intel Corp.
  *	Tom Long Nguyen (tom.l.nguyen@intel.com)
diff --git a/drivers/pci/pcie/aer/aerdrv_acpi.c b/drivers/pci/pcie/aer/aerdrv_acpi.c
index 01906576ab91..b2019440e882 100644
--- a/drivers/pci/pcie/aer/aerdrv_acpi.c
+++ b/drivers/pci/pcie/aer/aerdrv_acpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Access ACPI _OSC method
  *
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 1dfa10cc566b..83e4a892b14b 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * File:	drivers/pci/pcie/aspm.c
  * Enabling PCIe link L0s/L1 state and Clock Power Management
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index 4334fd5d7de9..a854bc569117 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	portdrv.h
  * Purpose:	PCI Express Port Bus Driver's Internal Data Structures
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 313a21df1692..ebc9d45bd731 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * File:	portdrv_core.c
  * Purpose:	PCI Express Port Bus Driver's Core Functions
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index be635f017756..68c389c7b975 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * File:	portdrv_pci.c
  * Purpose:	PCI Express Port Bus Driver
@@ -260,7 +261,7 @@ static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = {
+static const struct dmi_system_id pcie_portdrv_dmi_table[] __initconst = {
 	/*
 	 * Boxes that should not use MSI for PCIe PME signaling.
 	 */
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index 098360d7ff81..58a662e3c4a6 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Procfs interface for the PCI bus.
  *
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index a2afb44fad10..911b3b65c8b2 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  This file contains work-arounds for many known PCI hardware
  *  bugs.  Devices present only on certain architectures (host
@@ -1707,7 +1708,7 @@ static int dmi_disable_ioapicreroute(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id boot_interrupt_dmi_table[] = {
+static const struct dmi_system_id boot_interrupt_dmi_table[] = {
 	/*
 	 * Systems to exclude from boot interrupt reroute quirks
 	 */
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index e576e1a8d978..c039149cacb0 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	drivers/pci/setup-res.c
  *
diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index 9bf993e1f71e..83efa001c2e7 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	pci_syscall.c
  *
diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile
index 27e94b30cf96..e7dae16b9a43 100644
--- a/drivers/pcmcia/Makefile
+++ b/drivers/pcmcia/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel pcmcia subsystem (c/o David Hinds)
 #
diff --git a/drivers/pcmcia/bcm63xx_pcmcia.c b/drivers/pcmcia/bcm63xx_pcmcia.c
index 0802e0bc7d0c..16f573173471 100644
--- a/drivers/pcmcia/bcm63xx_pcmcia.c
+++ b/drivers/pcmcia/bcm63xx_pcmcia.c
@@ -263,12 +263,12 @@ static int bcm63xx_pcmcia_get_status(struct pcmcia_socket *sock,
 /*
  * socket polling timer callback
  */
-static void bcm63xx_pcmcia_poll(unsigned long data)
+static void bcm63xx_pcmcia_poll(struct timer_list *t)
 {
 	struct bcm63xx_pcmcia_socket *skt;
 	unsigned int stat, events;
 
-	skt = (struct bcm63xx_pcmcia_socket *)data;
+	skt = from_timer(skt, t, timer);
 
 	spin_lock_bh(&skt->lock);
 
@@ -392,7 +392,7 @@ static int bcm63xx_drv_pcmcia_probe(struct platform_device *pdev)
 	sock->map_size = resource_size(skt->common_res);
 
 	/* initialize polling timer */
-	setup_timer(&skt->timer, bcm63xx_pcmcia_poll, (unsigned long)skt);
+	timer_setup(&skt->timer, bcm63xx_pcmcia_poll, 0);
 
 	/* initialize  pcmcia  control register,  drive  VS[12] to  0,
 	 * leave CB IDSEL to the old  value since it is set by the PCI
diff --git a/drivers/pcmcia/bcm63xx_pcmcia.h b/drivers/pcmcia/bcm63xx_pcmcia.h
index ed957399d863..2122c59a1c4a 100644
--- a/drivers/pcmcia/bcm63xx_pcmcia.h
+++ b/drivers/pcmcia/bcm63xx_pcmcia.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BCM63XX_PCMCIA_H_
 #define BCM63XX_PCMCIA_H_
 
diff --git a/drivers/pcmcia/bfin_cf_pcmcia.c b/drivers/pcmcia/bfin_cf_pcmcia.c
index 8b0923fd76c6..00a296d431ba 100644
--- a/drivers/pcmcia/bfin_cf_pcmcia.c
+++ b/drivers/pcmcia/bfin_cf_pcmcia.c
@@ -86,9 +86,9 @@ static int bfin_cf_ss_init(struct pcmcia_socket *s)
 }
 
 /* the timer is primarily to kick this socket's pccardd */
-static void bfin_cf_timer(unsigned long _cf)
+static void bfin_cf_timer(struct timer_list *t)
 {
-	struct bfin_cf_socket *cf = (void *)_cf;
+	struct bfin_cf_socket *cf = from_timer(cf, t, timer);
 	unsigned short present = bfin_cf_present(cf->cd_pfx);
 
 	if (present != cf->present) {
@@ -227,7 +227,7 @@ static int bfin_cf_probe(struct platform_device *pdev)
 
 	cf->cd_pfx = cd_pfx;
 
-	setup_timer(&cf->timer, bfin_cf_timer, (unsigned long)cf);
+	timer_setup(&cf->timer, bfin_cf_timer, 0);
 
 	cf->pdev = pdev;
 	platform_set_drvdata(pdev, cf);
diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c
index 944674ee3464..19e17829f515 100644
--- a/drivers/pcmcia/db1xxx_ss.c
+++ b/drivers/pcmcia/db1xxx_ss.c
@@ -131,22 +131,27 @@ static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+/* Db/Pb1200 have separate per-socket insertion and ejection
+ * interrupts which stay asserted as long as the card is
+ * inserted/missing.  The one which caused us to be called
+ * needs to be disabled and the other one enabled.
+ */
 static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data)
 {
+	disable_irq_nosync(irq);
+	return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t db1200_pcmcia_cdirq_fn(int irq, void *data)
+{
 	struct db1x_pcmcia_sock *sock = data;
 
-	/* Db/Pb1200 have separate per-socket insertion and ejection
-	 * interrupts which stay asserted as long as the card is
-	 * inserted/missing.  The one which caused us to be called
-	 * needs to be disabled and the other one enabled.
-	 */
-	if (irq == sock->insert_irq) {
-		disable_irq_nosync(sock->insert_irq);
+	/* Wait a bit for the signals to stop bouncing. */
+	msleep(100);
+	if (irq == sock->insert_irq)
 		enable_irq(sock->eject_irq);
-	} else {
-		disable_irq_nosync(sock->eject_irq);
+	else
 		enable_irq(sock->insert_irq);
-	}
 
 	pcmcia_parse_events(&sock->socket, SS_DETECT);
 
@@ -172,13 +177,13 @@ static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock)
 	 */
 	if ((sock->board_type == BOARD_TYPE_DB1200) ||
 	    (sock->board_type == BOARD_TYPE_DB1300)) {
-		ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq,
-				  0, "pcmcia_insert", sock);
+		ret = request_threaded_irq(sock->insert_irq, db1200_pcmcia_cdirq,
+			db1200_pcmcia_cdirq_fn, 0, "pcmcia_insert", sock);
 		if (ret)
 			goto out1;
 
-		ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq,
-				  0, "pcmcia_eject", sock);
+		ret = request_threaded_irq(sock->eject_irq, db1200_pcmcia_cdirq,
+			db1200_pcmcia_cdirq_fn, 0, "pcmcia_eject", sock);
 		if (ret) {
 			free_irq(sock->insert_irq, sock);
 			goto out1;
diff --git a/drivers/pcmcia/i82092aa.h b/drivers/pcmcia/i82092aa.h
index 8836d393ad02..fabe08c3e33d 100644
--- a/drivers/pcmcia/i82092aa.h
+++ b/drivers/pcmcia/i82092aa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_GUARD_i82092aa_H_
 #define _INCLUDE_GUARD_i82092aa_H_
 
diff --git a/drivers/pcmcia/i82365.c b/drivers/pcmcia/i82365.c
index fb38cc01859f..891ccea2cccb 100644
--- a/drivers/pcmcia/i82365.c
+++ b/drivers/pcmcia/i82365.c
@@ -875,7 +875,7 @@ static irqreturn_t pcic_interrupt(int irq, void *dev)
     return IRQ_RETVAL(handled);
 } /* pcic_interrupt */
 
-static void pcic_interrupt_wrapper(u_long data)
+static void pcic_interrupt_wrapper(struct timer_list *unused)
 {
     pcic_interrupt(0, NULL);
     poll_timer.expires = jiffies + poll_interval;
@@ -1289,9 +1289,7 @@ static int __init init_i82365(void)
 
     /* Finally, schedule a polling interrupt */
     if (poll_interval != 0) {
-	poll_timer.function = pcic_interrupt_wrapper;
-	poll_timer.data = 0;
-	init_timer(&poll_timer);
+	timer_setup(&poll_timer, pcic_interrupt_wrapper, 0);
     	poll_timer.expires = jiffies + poll_interval;
 	add_timer(&poll_timer);
     }
diff --git a/drivers/pcmcia/m32r_cfc.h b/drivers/pcmcia/m32r_cfc.h
index f558e1adf954..05fec98617d0 100644
--- a/drivers/pcmcia/m32r_cfc.h
+++ b/drivers/pcmcia/m32r_cfc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2001 by Hiroyuki Kondo
  */
diff --git a/drivers/pcmcia/m32r_pcc.h b/drivers/pcmcia/m32r_pcc.h
index f95c58563bc8..d99ad3864ff3 100644
--- a/drivers/pcmcia/m32r_pcc.h
+++ b/drivers/pcmcia/m32r_pcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2001 by Hiroyuki Kondo
  */
diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c
index 4e2f501e5548..c2a17a79f0b2 100644
--- a/drivers/pcmcia/omap_cf.c
+++ b/drivers/pcmcia/omap_cf.c
@@ -80,9 +80,9 @@ static int omap_cf_ss_init(struct pcmcia_socket *s)
 }
 
 /* the timer is primarily to kick this socket's pccardd */
-static void omap_cf_timer(unsigned long _cf)
+static void omap_cf_timer(struct timer_list *t)
 {
-	struct omap_cf_socket	*cf = (void *) _cf;
+	struct omap_cf_socket	*cf = from_timer(cf, t, timer);
 	unsigned		present = omap_cf_present();
 
 	if (present != cf->present) {
@@ -102,7 +102,9 @@ static void omap_cf_timer(unsigned long _cf)
  */
 static irqreturn_t omap_cf_irq(int irq, void *_cf)
 {
-	omap_cf_timer((unsigned long)_cf);
+	struct omap_cf_socket *cf = (struct omap_cf_socket *)_cf;
+
+	omap_cf_timer(&cf->timer);
 	return IRQ_HANDLED;
 }
 
@@ -220,7 +222,7 @@ static int __init omap_cf_probe(struct platform_device *pdev)
 	cf = kzalloc(sizeof *cf, GFP_KERNEL);
 	if (!cf)
 		return -ENOMEM;
-	setup_timer(&cf->timer, omap_cf_timer, (unsigned long)cf);
+	timer_setup(&cf->timer, omap_cf_timer, 0);
 
 	cf->pdev = pdev;
 	platform_set_drvdata(pdev, cf);
diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c
index 0f70b4d58f9e..959ae3e65ef8 100644
--- a/drivers/pcmcia/pd6729.c
+++ b/drivers/pcmcia/pd6729.c
@@ -234,9 +234,9 @@ static irqreturn_t pd6729_interrupt(int irq, void *dev)
 
 /* socket functions */
 
-static void pd6729_interrupt_wrapper(unsigned long data)
+static void pd6729_interrupt_wrapper(struct timer_list *t)
 {
-	struct pd6729_socket *socket = (struct pd6729_socket *) data;
+	struct pd6729_socket *socket = from_timer(socket, t, poll_timer);
 
 	pd6729_interrupt(0, (void *)socket);
 	mod_timer(&socket->poll_timer, jiffies + HZ);
@@ -707,8 +707,7 @@ static int pd6729_pci_probe(struct pci_dev *dev,
 		}
 	} else {
 		/* poll Card status change */
-		setup_timer(&socket->poll_timer, pd6729_interrupt_wrapper,
-			    (unsigned long)socket);
+		timer_setup(&socket->poll_timer, pd6729_interrupt_wrapper, 0);
 		mod_timer(&socket->poll_timer, jiffies + HZ);
 	}
 
diff --git a/drivers/pcmcia/pd6729.h b/drivers/pcmcia/pd6729.h
index c8e84bdece38..605cc2ccf9c5 100644
--- a/drivers/pcmcia/pd6729.h
+++ b/drivers/pcmcia/pd6729.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_GUARD_PD6729_H_
 #define _INCLUDE_GUARD_PD6729_H_
 
diff --git a/drivers/pcmcia/sa1100_assabet.c b/drivers/pcmcia/sa1100_assabet.c
index 71ace6910d7e..78ad2bba76db 100644
--- a/drivers/pcmcia/sa1100_assabet.c
+++ b/drivers/pcmcia/sa1100_assabet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pcmcia/sa1100_assabet.c
  *
diff --git a/drivers/pcmcia/sa1100_cerf.c b/drivers/pcmcia/sa1100_cerf.c
index c3f67363f6a1..2a54081d161d 100644
--- a/drivers/pcmcia/sa1100_cerf.c
+++ b/drivers/pcmcia/sa1100_cerf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pcmcia/sa1100_cerf.c
  *
diff --git a/drivers/pcmcia/sa1100_generic.h b/drivers/pcmcia/sa1100_generic.h
index adb08dbc723f..a5f1f1dd63cb 100644
--- a/drivers/pcmcia/sa1100_generic.h
+++ b/drivers/pcmcia/sa1100_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "soc_common.h"
 #include "sa11xx_base.h"
 
diff --git a/drivers/pcmcia/sa1100_h3600.c b/drivers/pcmcia/sa1100_h3600.c
index 431d8b07cbaf..aebf9a66fdde 100644
--- a/drivers/pcmcia/sa1100_h3600.c
+++ b/drivers/pcmcia/sa1100_h3600.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pcmcia/sa1100_h3600.c
  *
diff --git a/drivers/pcmcia/sa1100_shannon.c b/drivers/pcmcia/sa1100_shannon.c
index b07a2dc3296e..0e52a575986e 100644
--- a/drivers/pcmcia/sa1100_shannon.c
+++ b/drivers/pcmcia/sa1100_shannon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pcmcia/sa1100_shannon.c
  *
diff --git a/drivers/pcmcia/sa1100_simpad.c b/drivers/pcmcia/sa1100_simpad.c
index 73fd37968b6a..7ce65bb23a8e 100644
--- a/drivers/pcmcia/sa1100_simpad.c
+++ b/drivers/pcmcia/sa1100_simpad.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pcmcia/sa1100_simpad.c
  *
diff --git a/drivers/pcmcia/sa1111_generic.h b/drivers/pcmcia/sa1111_generic.h
index e74ecfdc1b26..c01571d46982 100644
--- a/drivers/pcmcia/sa1111_generic.h
+++ b/drivers/pcmcia/sa1111_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "soc_common.h"
 #include "sa11xx_base.h"
 
diff --git a/drivers/pcmcia/sa1111_jornada720.c b/drivers/pcmcia/sa1111_jornada720.c
index 480a3ede27c8..3d4ca87ca76c 100644
--- a/drivers/pcmcia/sa1111_jornada720.c
+++ b/drivers/pcmcia/sa1111_jornada720.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/pcmcia/sa1100_jornada720.c
  *
diff --git a/drivers/pcmcia/sa1111_neponset.c b/drivers/pcmcia/sa1111_neponset.c
index 019c395eb4bf..0ccf05a28a4b 100644
--- a/drivers/pcmcia/sa1111_neponset.c
+++ b/drivers/pcmcia/sa1111_neponset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/drivers/pcmcia/sa1100_neponset.c
  *
diff --git a/drivers/pcmcia/soc_common.c b/drivers/pcmcia/soc_common.c
index b6b316de055c..764650eb8897 100644
--- a/drivers/pcmcia/soc_common.c
+++ b/drivers/pcmcia/soc_common.c
@@ -456,9 +456,9 @@ static void soc_common_check_status(struct soc_pcmcia_socket *skt)
 }
 
 /* Let's poll for events in addition to IRQs since IRQ only is unreliable... */
-static void soc_common_pcmcia_poll_event(unsigned long dummy)
+static void soc_common_pcmcia_poll_event(struct timer_list *t)
 {
-	struct soc_pcmcia_socket *skt = (struct soc_pcmcia_socket *)dummy;
+	struct soc_pcmcia_socket *skt = from_timer(skt, t, poll_timer);
 	debug(skt, 4, "polling for events\n");
 
 	mod_timer(&skt->poll_timer, jiffies + SOC_PCMCIA_POLL_PERIOD);
@@ -794,8 +794,7 @@ int soc_pcmcia_add_one(struct soc_pcmcia_socket *skt)
 
 	skt->cs_state = dead_socket;
 
-	setup_timer(&skt->poll_timer, soc_common_pcmcia_poll_event,
-		    (unsigned long)skt);
+	timer_setup(&skt->poll_timer, soc_common_pcmcia_poll_event, 0);
 	skt->poll_timer.expires = jiffies + SOC_PCMCIA_POLL_PERIOD;
 
 	ret = request_resource(&iomem_resource, &skt->res_skt);
diff --git a/drivers/pcmcia/soc_common.h b/drivers/pcmcia/soc_common.h
index 3f3625805353..b7f993f1bbd0 100644
--- a/drivers/pcmcia/soc_common.h
+++ b/drivers/pcmcia/soc_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/drivers/pcmcia/soc_common.h
  *
diff --git a/drivers/pcmcia/tcic.c b/drivers/pcmcia/tcic.c
index a1ac72d51d70..1a0e3f098759 100644
--- a/drivers/pcmcia/tcic.c
+++ b/drivers/pcmcia/tcic.c
@@ -98,7 +98,7 @@ module_param(cycle_time, int, 0444);
 /*====================================================================*/
 
 static irqreturn_t tcic_interrupt(int irq, void *dev);
-static void tcic_timer(u_long data);
+static void tcic_timer(struct timer_list *unused);
 static struct pccard_operations tcic_operations;
 
 struct tcic_socket {
@@ -435,9 +435,7 @@ static int __init init_tcic(void)
     }
     
     /* Set up polling */
-    poll_timer.function = &tcic_timer;
-    poll_timer.data = 0;
-    init_timer(&poll_timer);
+    timer_setup(&poll_timer, &tcic_timer, 0);
 
     /* Build interrupt mask */
     printk(KERN_CONT ", %d sockets\n", sockets);
@@ -583,7 +581,7 @@ static irqreturn_t tcic_interrupt(int irq, void *dev)
     return IRQ_HANDLED;
 } /* tcic_interrupt */
 
-static void tcic_timer(u_long data)
+static void tcic_timer(struct timer_list *unused)
 {
     pr_debug("tcic_timer()\n");
     tcic_timer_pending = 0;
diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 5d6d9b1549bc..ab3da2262f0f 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -534,9 +534,9 @@ static irqreturn_t yenta_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void yenta_interrupt_wrapper(unsigned long data)
+static void yenta_interrupt_wrapper(struct timer_list *t)
 {
-	struct yenta_socket *socket = (struct yenta_socket *) data;
+	struct yenta_socket *socket = from_timer(socket, t, poll_timer);
 
 	yenta_interrupt(0, (void *)socket);
 	socket->poll_timer.expires = jiffies + HZ;
@@ -1233,8 +1233,7 @@ static int yenta_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (!socket->cb_irq || request_irq(socket->cb_irq, yenta_interrupt, IRQF_SHARED, "yenta", socket)) {
 		/* No IRQ or request_irq failed. Poll */
 		socket->cb_irq = 0; /* But zero is a valid IRQ number. */
-		setup_timer(&socket->poll_timer, yenta_interrupt_wrapper,
-			    (unsigned long)socket);
+		timer_setup(&socket->poll_timer, yenta_interrupt_wrapper, 0);
 		mod_timer(&socket->poll_timer, jiffies + HZ);
 		dev_info(&dev->dev,
 			 "no PCI IRQ, CardBus support disabled for this socket.\n");
diff --git a/drivers/pcmcia/yenta_socket.h b/drivers/pcmcia/yenta_socket.h
index 4e75e9e258cd..efeed19e28c7 100644
--- a/drivers/pcmcia/yenta_socket.h
+++ b/drivers/pcmcia/yenta_socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __YENTA_H
 #define __YENTA_H
 
diff --git a/drivers/perf/Makefile b/drivers/perf/Makefile
index 6420bd4394d5..9402dc8ff22c 100644
--- a/drivers/perf/Makefile
+++ b/drivers/perf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ARM_PMU) += arm_pmu.o arm_pmu_platform.o
 obj-$(CONFIG_ARM_PMU_ACPI) += arm_pmu_acpi.o
 obj-$(CONFIG_QCOM_L2_PMU)	+= qcom_l2_pmu.o
diff --git a/drivers/perf/arm_pmu_acpi.c b/drivers/perf/arm_pmu_acpi.c
index 0a9b78705ee8..3303dd8d8eb5 100644
--- a/drivers/perf/arm_pmu_acpi.c
+++ b/drivers/perf/arm_pmu_acpi.c
@@ -235,6 +235,7 @@ int arm_pmu_acpi_probe(armpmu_init_fn init_fn)
 		ret = armpmu_register(pmu);
 		if (ret) {
 			pr_warn("Failed to register PMU for CPU%d\n", cpu);
+			kfree(pmu->name);
 			return ret;
 		}
 	}
diff --git a/drivers/perf/arm_pmu_platform.c b/drivers/perf/arm_pmu_platform.c
index 4eafa7a42e52..4428852e1da1 100644
--- a/drivers/perf/arm_pmu_platform.c
+++ b/drivers/perf/arm_pmu_platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * platform_device probing code for ARM performance counters.
  *
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 441912c10b82..5c8d452e35e2 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -44,6 +44,7 @@ source "drivers/phy/allwinner/Kconfig"
 source "drivers/phy/amlogic/Kconfig"
 source "drivers/phy/broadcom/Kconfig"
 source "drivers/phy/hisilicon/Kconfig"
+source "drivers/phy/lantiq/Kconfig"
 source "drivers/phy/marvell/Kconfig"
 source "drivers/phy/mediatek/Kconfig"
 source "drivers/phy/motorola/Kconfig"
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 06f3c500030d..84e3bd9c5665 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the phy drivers.
 #
@@ -6,9 +7,9 @@ obj-$(CONFIG_GENERIC_PHY)		+= phy-core.o
 obj-$(CONFIG_PHY_LPC18XX_USB_OTG)	+= phy-lpc18xx-usb-otg.o
 obj-$(CONFIG_PHY_XGENE)			+= phy-xgene.o
 obj-$(CONFIG_PHY_PISTACHIO_USB)		+= phy-pistachio-usb.o
-
 obj-$(CONFIG_ARCH_SUNXI)		+= allwinner/
 obj-$(CONFIG_ARCH_MESON)		+= amlogic/
+obj-$(CONFIG_LANTIQ)			+= lantiq/
 obj-$(CONFIG_ARCH_MEDIATEK)		+= mediatek/
 obj-$(CONFIG_ARCH_RENESAS)		+= renesas/
 obj-$(CONFIG_ARCH_ROCKCHIP)		+= rockchip/
diff --git a/drivers/phy/allwinner/phy-sun4i-usb.c b/drivers/phy/allwinner/phy-sun4i-usb.c
index 1161e11fb3cf..aa857be692cf 100644
--- a/drivers/phy/allwinner/phy-sun4i-usb.c
+++ b/drivers/phy/allwinner/phy-sun4i-usb.c
@@ -24,7 +24,7 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/err.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/io.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
@@ -926,6 +926,7 @@ static const struct sun4i_usb_phy_cfg sun8i_v3s_cfg = {
 	.phyctl_offset = REG_PHYCTL_A33,
 	.dedicated_clocks = true,
 	.enable_pmu_unk1 = true,
+	.phy0_dual_route = true,
 };
 
 static const struct sun4i_usb_phy_cfg sun50i_a64_cfg = {
diff --git a/drivers/phy/broadcom/Kconfig b/drivers/phy/broadcom/Kconfig
index 64fc59c3ae6d..97d27b0d5cc7 100644
--- a/drivers/phy/broadcom/Kconfig
+++ b/drivers/phy/broadcom/Kconfig
@@ -67,3 +67,16 @@ config PHY_BRCM_SATA
 	help
 	  Enable this to support the Broadcom SATA PHY.
 	  If unsure, say N.
+
+config PHY_BRCM_USB
+	tristate "Broadcom STB USB PHY driver"
+	depends on ARCH_BRCMSTB
+	depends on OF
+	select GENERIC_PHY
+	select SOC_BRCMSTB
+	default ARCH_BRCMSTB
+	help
+	  Enable this to support the Broadcom STB USB PHY.
+	  This driver is required by the USB XHCI, EHCI and OHCI
+	  drivers.
+	  If unsure, say N.
diff --git a/drivers/phy/broadcom/Makefile b/drivers/phy/broadcom/Makefile
index 4eb82ec8d491..13e000c1a43a 100644
--- a/drivers/phy/broadcom/Makefile
+++ b/drivers/phy/broadcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PHY_CYGNUS_PCIE)		+= phy-bcm-cygnus-pcie.o
 obj-$(CONFIG_BCM_KONA_USB2_PHY)		+= phy-bcm-kona-usb2.o
 obj-$(CONFIG_PHY_BCM_NS_USB2)		+= phy-bcm-ns-usb2.o
@@ -5,3 +6,6 @@ obj-$(CONFIG_PHY_BCM_NS_USB3)		+= phy-bcm-ns-usb3.o
 obj-$(CONFIG_PHY_NS2_PCIE)		+= phy-bcm-ns2-pcie.o
 obj-$(CONFIG_PHY_NS2_USB_DRD)		+= phy-bcm-ns2-usbdrd.o
 obj-$(CONFIG_PHY_BRCM_SATA)		+= phy-brcm-sata.o
+obj-$(CONFIG_PHY_BRCM_USB)		+= phy-brcm-usb-dvr.o
+
+phy-brcm-usb-dvr-objs := phy-brcm-usb.o phy-brcm-usb-init.o
diff --git a/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c b/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c
index d099a0c8cee5..7ceea5ae2704 100644
--- a/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c
+++ b/drivers/phy/broadcom/phy-bcm-ns2-usbdrd.c
@@ -12,7 +12,7 @@
  */
 
 #include <linux/delay.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/init.h>
diff --git a/drivers/phy/broadcom/phy-brcm-sata.c b/drivers/phy/broadcom/phy-brcm-sata.c
index 9d7f74fe3d7c..3f953db70288 100644
--- a/drivers/phy/broadcom/phy-brcm-sata.c
+++ b/drivers/phy/broadcom/phy-brcm-sata.c
@@ -49,11 +49,29 @@ enum brcm_sata_phy_version {
 	BRCM_SATA_PHY_IPROC_SR,
 };
 
+enum brcm_sata_phy_rxaeq_mode {
+	RXAEQ_MODE_OFF = 0,
+	RXAEQ_MODE_AUTO,
+	RXAEQ_MODE_MANUAL,
+};
+
+static enum brcm_sata_phy_rxaeq_mode rxaeq_to_val(const char *m)
+{
+	if (!strcmp(m, "auto"))
+		return RXAEQ_MODE_AUTO;
+	else if (!strcmp(m, "manual"))
+		return RXAEQ_MODE_MANUAL;
+	else
+		return RXAEQ_MODE_OFF;
+}
+
 struct brcm_sata_port {
 	int portnum;
 	struct phy *phy;
 	struct brcm_sata_phy *phy_priv;
 	bool ssc_en;
+	enum brcm_sata_phy_rxaeq_mode rxaeq_mode;
+	u32 rxaeq_val;
 };
 
 struct brcm_sata_phy {
@@ -93,6 +111,15 @@ enum sata_phy_regs {
 	TX_ACTRL0				= 0x80,
 	TX_ACTRL0_TXPOL_FLIP			= BIT(6),
 
+	AEQRX_REG_BANK_0			= 0xd0,
+	AEQ_CONTROL1				= 0x81,
+	AEQ_CONTROL1_ENABLE			= BIT(2),
+	AEQ_CONTROL1_FREEZE			= BIT(3),
+	AEQ_FRC_EQ				= 0x83,
+	AEQ_FRC_EQ_FORCE			= BIT(0),
+	AEQ_FRC_EQ_FORCE_VAL			= BIT(1),
+	AEQRX_REG_BANK_1			= 0xe0,
+
 	OOB_REG_BANK				= 0x150,
 	OOB1_REG_BANK				= 0x160,
 	OOB_CTRL1				= 0x80,
@@ -190,7 +217,7 @@ static u32 brcm_sata_phy_rd(void __iomem *pcb_base, u32 bank, u32 ofs)
 #define STB_FMAX_VAL_DEFAULT	0x3df
 #define STB_FMAX_VAL_SSC	0x83
 
-static int brcm_stb_sata_init(struct brcm_sata_port *port)
+static void brcm_stb_sata_ssc_init(struct brcm_sata_port *port)
 {
 	void __iomem *base = brcm_sata_pcb_base(port);
 	struct brcm_sata_phy *priv = port->phy_priv;
@@ -215,10 +242,47 @@ static int brcm_stb_sata_init(struct brcm_sata_port *port)
 
 	brcm_sata_phy_wr(base, TXPMD_REG_BANK, TXPMD_TX_FREQ_CTRL_CONTROL3,
 			  ~TXPMD_TX_FREQ_CTRL_CONTROL3_FMAX_MASK, tmp);
+}
+
+#define AEQ_FRC_EQ_VAL_SHIFT	2
+#define AEQ_FRC_EQ_VAL_MASK	0x3f
+
+static int brcm_stb_sata_rxaeq_init(struct brcm_sata_port *port)
+{
+	void __iomem *base = brcm_sata_pcb_base(port);
+	u32 tmp = 0, reg = 0;
+
+	switch (port->rxaeq_mode) {
+	case RXAEQ_MODE_OFF:
+		return 0;
+
+	case RXAEQ_MODE_AUTO:
+		reg = AEQ_CONTROL1;
+		tmp = AEQ_CONTROL1_ENABLE | AEQ_CONTROL1_FREEZE;
+		break;
+
+	case RXAEQ_MODE_MANUAL:
+		reg = AEQ_FRC_EQ;
+		tmp = AEQ_FRC_EQ_FORCE | AEQ_FRC_EQ_FORCE_VAL;
+		if (port->rxaeq_val > AEQ_FRC_EQ_VAL_MASK)
+			return -EINVAL;
+		tmp |= port->rxaeq_val << AEQ_FRC_EQ_VAL_SHIFT;
+		break;
+	}
+
+	brcm_sata_phy_wr(base, AEQRX_REG_BANK_0, reg, ~tmp, tmp);
+	brcm_sata_phy_wr(base, AEQRX_REG_BANK_1, reg, ~tmp, tmp);
 
 	return 0;
 }
 
+static int brcm_stb_sata_init(struct brcm_sata_port *port)
+{
+	brcm_stb_sata_ssc_init(port);
+
+	return brcm_stb_sata_rxaeq_init(port);
+}
+
 /* NS2 SATA PLL1 defaults were characterized by H/W group */
 #define NS2_PLL1_ACTRL2_MAGIC	0x1df8
 #define NS2_PLL1_ACTRL3_MAGIC	0x2b00
@@ -463,6 +527,7 @@ MODULE_DEVICE_TABLE(of, brcm_sata_phy_of_match);
 
 static int brcm_sata_phy_probe(struct platform_device *pdev)
 {
+	const char *rxaeq_mode;
 	struct device *dev = &pdev->dev;
 	struct device_node *dn = dev->of_node, *child;
 	const struct of_device_id *of_id;
@@ -525,6 +590,13 @@ static int brcm_sata_phy_probe(struct platform_device *pdev)
 		port->portnum = id;
 		port->phy_priv = priv;
 		port->phy = devm_phy_create(dev, child, &phy_ops);
+		port->rxaeq_mode = RXAEQ_MODE_OFF;
+		if (!of_property_read_string(child, "brcm,rxaeq-mode",
+					     &rxaeq_mode))
+			port->rxaeq_mode = rxaeq_to_val(rxaeq_mode);
+		if (port->rxaeq_mode == RXAEQ_MODE_MANUAL)
+			of_property_read_u32(child, "brcm,rxaeq-value",
+					     &port->rxaeq_val);
 		port->ssc_en = of_property_read_bool(child, "brcm,enable-ssc");
 		if (IS_ERR(port->phy)) {
 			dev_err(dev, "failed to create PHY\n");
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.c b/drivers/phy/broadcom/phy-brcm-usb-init.c
new file mode 100644
index 000000000000..1e7ce0b6f299
--- /dev/null
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.c
@@ -0,0 +1,1017 @@
+/*
+ * phy-brcm-usb-init.c - Broadcom USB Phy chip specific init functions
+ *
+ * Copyright (C) 2014-2017 Broadcom
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/*
+ * This module contains USB PHY initialization for power up and S3 resume
+ */
+
+#include <linux/delay.h>
+#include <linux/io.h>
+
+#include <linux/soc/brcmstb/brcmstb.h>
+#include "phy-brcm-usb-init.h"
+
+#define PHY_PORTS 2
+#define PHY_PORT_SELECT_0 0
+#define PHY_PORT_SELECT_1 0x1000
+
+/* Register definitions for the USB CTRL block */
+#define USB_CTRL_SETUP			0x00
+#define   USB_CTRL_SETUP_IOC_MASK			0x00000010
+#define   USB_CTRL_SETUP_IPP_MASK			0x00000020
+#define   USB_CTRL_SETUP_BABO_MASK			0x00000001
+#define   USB_CTRL_SETUP_FNHW_MASK			0x00000002
+#define   USB_CTRL_SETUP_FNBO_MASK			0x00000004
+#define   USB_CTRL_SETUP_WABO_MASK			0x00000008
+#define   USB_CTRL_SETUP_SCB_CLIENT_SWAP_MASK		0x00002000 /* option */
+#define   USB_CTRL_SETUP_SCB1_EN_MASK			0x00004000 /* option */
+#define   USB_CTRL_SETUP_SCB2_EN_MASK			0x00008000 /* option */
+#define   USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK		0X00020000 /* option */
+#define   USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK	0x00010000 /* option */
+#define   USB_CTRL_SETUP_STRAP_IPP_SEL_MASK		0x02000000 /* option */
+#define   USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK	0x04000000 /* option */
+#define   USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK 0x08000000 /* opt */
+#define   USB_CTRL_SETUP_OC3_DISABLE_MASK		0xc0000000 /* option */
+#define USB_CTRL_PLL_CTL		0x04
+#define   USB_CTRL_PLL_CTL_PLL_SUSPEND_EN_MASK		0x08000000
+#define   USB_CTRL_PLL_CTL_PLL_RESETB_MASK		0x40000000
+#define   USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK		0x80000000 /* option */
+#define USB_CTRL_EBRIDGE		0x0c
+#define   USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK		0x00020000 /* option */
+#define USB_CTRL_MDIO			0x14
+#define USB_CTRL_MDIO2			0x18
+#define USB_CTRL_UTMI_CTL_1		0x2c
+#define   USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_MASK	0x00000800
+#define   USB_CTRL_UTMI_CTL_1_POWER_UP_FSM_EN_P1_MASK	0x08000000
+#define USB_CTRL_USB_PM			0x34
+#define   USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK		0x00800000 /* option */
+#define   USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK		0x00400000 /* option */
+#define   USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK	0x40000000 /* option */
+#define   USB_CTRL_USB_PM_USB_PWRDN_MASK		0x80000000 /* option */
+#define   USB_CTRL_USB_PM_SOFT_RESET_MASK		0x40000000 /* option */
+#define   USB_CTRL_USB_PM_USB20_HC_RESETB_MASK		0x30000000 /* option */
+#define   USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK	0x00300000 /* option */
+#define USB_CTRL_USB30_CTL1		0x60
+#define   USB_CTRL_USB30_CTL1_PHY3_PLL_SEQ_START_MASK	0x00000010
+#define   USB_CTRL_USB30_CTL1_PHY3_RESETB_MASK		0x00010000
+#define   USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK	0x00020000 /* option */
+#define   USB_CTRL_USB30_CTL1_USB3_IOC_MASK		0x10000000 /* option */
+#define   USB_CTRL_USB30_CTL1_USB3_IPP_MASK		0x20000000 /* option */
+#define USB_CTRL_USB30_PCTL		0x70
+#define   USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_MASK	0x00000002
+#define   USB_CTRL_USB30_PCTL_PHY3_SOFT_RESETB_P1_MASK	0x00020000
+#define USB_CTRL_USB_DEVICE_CTL1	0x90
+#define   USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK	0x00000003 /* option */
+
+/* Register definitions for the XHCI EC block */
+#define USB_XHCI_EC_IRAADR 0x658
+#define USB_XHCI_EC_IRADAT 0x65c
+
+enum brcm_family_type {
+	BRCM_FAMILY_3390A0,
+	BRCM_FAMILY_7250B0,
+	BRCM_FAMILY_7271A0,
+	BRCM_FAMILY_7364A0,
+	BRCM_FAMILY_7366C0,
+	BRCM_FAMILY_74371A0,
+	BRCM_FAMILY_7439B0,
+	BRCM_FAMILY_7445D0,
+	BRCM_FAMILY_7260A0,
+	BRCM_FAMILY_7278A0,
+	BRCM_FAMILY_COUNT,
+};
+
+#define USB_BRCM_FAMILY(chip) \
+	[BRCM_FAMILY_##chip] = __stringify(chip)
+
+static const char *family_names[BRCM_FAMILY_COUNT] = {
+	USB_BRCM_FAMILY(3390A0),
+	USB_BRCM_FAMILY(7250B0),
+	USB_BRCM_FAMILY(7271A0),
+	USB_BRCM_FAMILY(7364A0),
+	USB_BRCM_FAMILY(7366C0),
+	USB_BRCM_FAMILY(74371A0),
+	USB_BRCM_FAMILY(7439B0),
+	USB_BRCM_FAMILY(7445D0),
+	USB_BRCM_FAMILY(7260A0),
+	USB_BRCM_FAMILY(7278A0),
+};
+
+enum {
+	USB_CTRL_SETUP_SCB1_EN_SELECTOR,
+	USB_CTRL_SETUP_SCB2_EN_SELECTOR,
+	USB_CTRL_SETUP_SS_EHCI64BIT_EN_SELECTOR,
+	USB_CTRL_SETUP_STRAP_IPP_SEL_SELECTOR,
+	USB_CTRL_SETUP_OC3_DISABLE_SELECTOR,
+	USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_SELECTOR,
+	USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_SELECTOR,
+	USB_CTRL_USB_PM_BDC_SOFT_RESETB_SELECTOR,
+	USB_CTRL_USB_PM_XHC_SOFT_RESETB_SELECTOR,
+	USB_CTRL_USB_PM_USB_PWRDN_SELECTOR,
+	USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_SELECTOR,
+	USB_CTRL_USB30_CTL1_USB3_IOC_SELECTOR,
+	USB_CTRL_USB30_CTL1_USB3_IPP_SELECTOR,
+	USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_SELECTOR,
+	USB_CTRL_USB_PM_SOFT_RESET_SELECTOR,
+	USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_SELECTOR,
+	USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_SELECTOR,
+	USB_CTRL_USB_PM_USB20_HC_RESETB_SELECTOR,
+	USB_CTRL_SETUP_ENDIAN_SELECTOR,
+	USB_CTRL_SELECTOR_COUNT,
+};
+
+#define USB_CTRL_REG(base, reg)	((void *)base + USB_CTRL_##reg)
+#define USB_XHCI_EC_REG(base, reg) ((void *)base + USB_XHCI_EC_##reg)
+#define USB_CTRL_MASK(reg, field) \
+	USB_CTRL_##reg##_##field##_MASK
+#define USB_CTRL_MASK_FAMILY(params, reg, field)			\
+	(params->usb_reg_bits_map[USB_CTRL_##reg##_##field##_SELECTOR])
+
+#define USB_CTRL_SET_FAMILY(params, reg, field)	\
+	usb_ctrl_set_family(params, USB_CTRL_##reg,	\
+			USB_CTRL_##reg##_##field##_SELECTOR)
+#define USB_CTRL_UNSET_FAMILY(params, reg, field)	\
+	usb_ctrl_unset_family(params, USB_CTRL_##reg,	\
+		USB_CTRL_##reg##_##field##_SELECTOR)
+
+#define USB_CTRL_SET(base, reg, field)	\
+	usb_ctrl_set(USB_CTRL_REG(base, reg),		\
+		     USB_CTRL_##reg##_##field##_MASK)
+#define USB_CTRL_UNSET(base, reg, field)	\
+	usb_ctrl_unset(USB_CTRL_REG(base, reg),		\
+		       USB_CTRL_##reg##_##field##_MASK)
+
+#define MDIO_USB2	0
+#define MDIO_USB3	BIT(31)
+
+#define USB_CTRL_SETUP_ENDIAN_BITS (	\
+		USB_CTRL_MASK(SETUP, BABO) |	\
+		USB_CTRL_MASK(SETUP, FNHW) |	\
+		USB_CTRL_MASK(SETUP, FNBO) |	\
+		USB_CTRL_MASK(SETUP, WABO))
+
+#ifdef __LITTLE_ENDIAN
+#define ENDIAN_SETTINGS (			\
+		USB_CTRL_MASK(SETUP, BABO) |	\
+		USB_CTRL_MASK(SETUP, FNHW))
+#else
+#define ENDIAN_SETTINGS (			\
+		USB_CTRL_MASK(SETUP, FNHW) |	\
+		USB_CTRL_MASK(SETUP, FNBO) |	\
+		USB_CTRL_MASK(SETUP, WABO))
+#endif
+
+struct id_to_type {
+	u32 id;
+	int type;
+};
+
+static const struct id_to_type id_to_type_table[] = {
+	{ 0x33900000, BRCM_FAMILY_3390A0 },
+	{ 0x72500010, BRCM_FAMILY_7250B0 },
+	{ 0x72600000, BRCM_FAMILY_7260A0 },
+	{ 0x72680000, BRCM_FAMILY_7271A0 },
+	{ 0x72710000, BRCM_FAMILY_7271A0 },
+	{ 0x73640000, BRCM_FAMILY_7364A0 },
+	{ 0x73660020, BRCM_FAMILY_7366C0 },
+	{ 0x07437100, BRCM_FAMILY_74371A0 },
+	{ 0x74390010, BRCM_FAMILY_7439B0 },
+	{ 0x74450030, BRCM_FAMILY_7445D0 },
+	{ 0x72780000, BRCM_FAMILY_7278A0 },
+	{ 0, BRCM_FAMILY_7271A0 }, /* default */
+};
+
+static const u32
+usb_reg_bits_map_table[BRCM_FAMILY_COUNT][USB_CTRL_SELECTOR_COUNT] = {
+	/* 3390B0 */
+	[BRCM_FAMILY_3390A0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_USB_PWRDN_MASK,
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7250b0 */
+	[BRCM_FAMILY_7250B0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
+		0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7271a0 */
+	[BRCM_FAMILY_7271A0] = {
+		0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
+		0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_USB_PWRDN_MASK,
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
+		USB_CTRL_USB_PM_SOFT_RESET_MASK,
+		USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
+		USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
+		USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7364a0 */
+	[BRCM_FAMILY_7364A0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
+		0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7366c0 */
+	[BRCM_FAMILY_7366C0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_VAR_MASK,
+		USB_CTRL_USB_PM_USB_PWRDN_MASK,
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		USB_CTRL_USB_PM_USB20_HC_RESETB_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 74371A0 */
+	[BRCM_FAMILY_74371A0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
+		0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
+		0, /* USB_CTRL_SETUP_OC3_DISABLE_MASK */
+		USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
+		0, /* USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK */
+		0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
+		USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
+		USB_CTRL_USB30_CTL1_USB3_IOC_MASK,
+		USB_CTRL_USB30_CTL1_USB3_IPP_MASK,
+		0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7439B0 */
+	[BRCM_FAMILY_7439B0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+		0, /* USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK */
+		USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_USB_PWRDN_MASK,
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7445d0 */
+	[BRCM_FAMILY_7445D0] = {
+		USB_CTRL_SETUP_SCB1_EN_MASK,
+		USB_CTRL_SETUP_SCB2_EN_MASK,
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_VAR_MASK,
+		0, /* USB_CTRL_SETUP_STRAP_IPP_SEL_MASK */
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK,
+		0, /* USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK */
+		0, /* USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB_PM_USB_PWRDN_MASK */
+		USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK,
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		0, /* USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK */
+		0, /* USB_CTRL_USB_PM_SOFT_RESET_MASK */
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7260a0 */
+	[BRCM_FAMILY_7260A0] = {
+		0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
+		0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
+		USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK,
+		USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_USB_PWRDN_MASK,
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
+		USB_CTRL_USB_PM_SOFT_RESET_MASK,
+		USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK,
+		USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK,
+		USB_CTRL_USB_PM_USB20_HC_RESETB_VAR_MASK,
+		ENDIAN_SETTINGS, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+	/* 7278a0 */
+	[BRCM_FAMILY_7278A0] = {
+		0, /* USB_CTRL_SETUP_SCB1_EN_MASK */
+		0, /* USB_CTRL_SETUP_SCB2_EN_MASK */
+		0, /*USB_CTRL_SETUP_SS_EHCI64BIT_EN_MASK */
+		USB_CTRL_SETUP_STRAP_IPP_SEL_MASK,
+		USB_CTRL_SETUP_OC3_DISABLE_MASK,
+		0, /* USB_CTRL_PLL_CTL_PLL_IDDQ_PWRDN_MASK */
+		USB_CTRL_EBRIDGE_ESTOP_SCB_REQ_MASK,
+		USB_CTRL_USB_PM_BDC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_XHC_SOFT_RESETB_MASK,
+		USB_CTRL_USB_PM_USB_PWRDN_MASK,
+		0, /* USB_CTRL_USB30_CTL1_XHC_SOFT_RESETB_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IOC_MASK */
+		0, /* USB_CTRL_USB30_CTL1_USB3_IPP_MASK */
+		USB_CTRL_USB_DEVICE_CTL1_PORT_MODE_MASK,
+		USB_CTRL_USB_PM_SOFT_RESET_MASK,
+		0, /* USB_CTRL_SETUP_CC_DRD_MODE_ENABLE_MASK */
+		0, /* USB_CTRL_SETUP_STRAP_CC_DRD_MODE_ENABLE_SEL_MASK */
+		0, /* USB_CTRL_USB_PM_USB20_HC_RESETB_MASK */
+		0, /* USB_CTRL_SETUP ENDIAN bits */
+	},
+};
+
+static inline u32 brcmusb_readl(void __iomem *addr)
+{
+	return readl(addr);
+}
+
+static inline void brcmusb_writel(u32 val, void __iomem *addr)
+{
+	writel(val, addr);
+}
+
+static inline
+void usb_ctrl_unset_family(struct brcm_usb_init_params *params,
+			   u32 reg_offset, u32 field)
+{
+	u32 mask;
+	void *reg;
+
+	mask = params->usb_reg_bits_map[field];
+	reg = params->ctrl_regs + reg_offset;
+	brcmusb_writel(brcmusb_readl(reg) & ~mask, reg);
+};
+
+static inline
+void usb_ctrl_set_family(struct brcm_usb_init_params *params,
+			 u32 reg_offset, u32 field)
+{
+	u32 mask;
+	void *reg;
+
+	mask = params->usb_reg_bits_map[field];
+	reg = params->ctrl_regs + reg_offset;
+	brcmusb_writel(brcmusb_readl(reg) | mask, reg);
+};
+
+static inline void usb_ctrl_set(void __iomem *reg, u32 field)
+{
+	u32 value;
+
+	value = brcmusb_readl(reg);
+	brcmusb_writel(value | field, reg);
+}
+
+static inline void usb_ctrl_unset(void __iomem *reg, u32 field)
+{
+	u32 value;
+
+	value = brcmusb_readl(reg);
+	brcmusb_writel(value & ~field, reg);
+}
+
+static u32 brcmusb_usb_mdio_read(void __iomem *ctrl_base, u32 reg, int mode)
+{
+	u32 data;
+
+	data = (reg << 16) | mode;
+	brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+	data |= (1 << 24);
+	brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+	data &= ~(1 << 24);
+	/* wait for the 60MHz parallel to serial shifter */
+	usleep_range(10, 20);
+	brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+	/* wait for the 60MHz parallel to serial shifter */
+	usleep_range(10, 20);
+
+	return brcmusb_readl(USB_CTRL_REG(ctrl_base, MDIO2)) & 0xffff;
+}
+
+static void brcmusb_usb_mdio_write(void __iomem *ctrl_base, u32 reg,
+				   u32 val, int mode)
+{
+	u32 data;
+
+	data = (reg << 16) | val | mode;
+	brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+	data |= (1 << 25);
+	brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+	data &= ~(1 << 25);
+
+	/* wait for the 60MHz parallel to serial shifter */
+	usleep_range(10, 20);
+	brcmusb_writel(data, USB_CTRL_REG(ctrl_base, MDIO));
+	/* wait for the 60MHz parallel to serial shifter */
+	usleep_range(10, 20);
+}
+
+static void brcmusb_usb_phy_ldo_fix(void __iomem *ctrl_base)
+{
+	/* first disable FSM but also leave it that way */
+	/* to allow normal suspend/resume */
+	USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN);
+	USB_CTRL_UNSET(ctrl_base, UTMI_CTL_1, POWER_UP_FSM_EN_P1);
+
+	/* reset USB 2.0 PLL */
+	USB_CTRL_UNSET(ctrl_base, PLL_CTL, PLL_RESETB);
+	/* PLL reset period */
+	udelay(1);
+	USB_CTRL_SET(ctrl_base, PLL_CTL, PLL_RESETB);
+	/* Give PLL enough time to lock */
+	usleep_range(1000, 2000);
+}
+
+static void brcmusb_usb2_eye_fix(void __iomem *ctrl_base)
+{
+	/* Increase USB 2.0 TX level to meet spec requirement */
+	brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x80a0, MDIO_USB2);
+	brcmusb_usb_mdio_write(ctrl_base, 0x0a, 0xc6a0, MDIO_USB2);
+}
+
+static void brcmusb_usb3_pll_fix(void __iomem *ctrl_base)
+{
+	/* Set correct window for PLL lock detect */
+	brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x07, 0x1503, MDIO_USB3);
+}
+
+static void brcmusb_usb3_enable_pipe_reset(void __iomem *ctrl_base)
+{
+	u32 val;
+
+	/* Re-enable USB 3.0 pipe reset */
+	brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
+	val = brcmusb_usb_mdio_read(ctrl_base, 0x0f, MDIO_USB3) | 0x200;
+	brcmusb_usb_mdio_write(ctrl_base, 0x0f, val, MDIO_USB3);
+}
+
+static void brcmusb_usb3_enable_sigdet(void __iomem *ctrl_base)
+{
+	u32 val, ofs;
+	int ii;
+
+	ofs = 0;
+	for (ii = 0; ii < PHY_PORTS; ++ii) {
+		/* Set correct default for sigdet */
+		brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8080 + ofs),
+				       MDIO_USB3);
+		val = brcmusb_usb_mdio_read(ctrl_base, 0x05, MDIO_USB3);
+		val = (val & ~0x800f) | 0x800d;
+		brcmusb_usb_mdio_write(ctrl_base, 0x05, val, MDIO_USB3);
+		ofs = PHY_PORT_SELECT_1;
+	}
+}
+
+static void brcmusb_usb3_enable_skip_align(void __iomem *ctrl_base)
+{
+	u32 val, ofs;
+	int ii;
+
+	ofs = 0;
+	for (ii = 0; ii < PHY_PORTS; ++ii) {
+		/* Set correct default for SKIP align */
+		brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8060 + ofs),
+				       MDIO_USB3);
+		val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0x200;
+		brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
+		ofs = PHY_PORT_SELECT_1;
+	}
+}
+
+static void brcmusb_usb3_unfreeze_aeq(void __iomem *ctrl_base)
+{
+	u32 val, ofs;
+	int ii;
+
+	ofs = 0;
+	for (ii = 0; ii < PHY_PORTS; ++ii) {
+		/* Let EQ freeze after TSEQ */
+		brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x80e0 + ofs),
+				       MDIO_USB3);
+		val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3);
+		val &= ~0x0008;
+		brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
+		ofs = PHY_PORT_SELECT_1;
+	}
+}
+
+static void brcmusb_usb3_pll_54mhz(struct brcm_usb_init_params *params)
+{
+	u32 ofs;
+	int ii;
+	void __iomem *ctrl_base = params->ctrl_regs;
+
+	/*
+	 * On newer B53 based SoC's, the reference clock for the
+	 * 3.0 PLL has been changed from 50MHz to 54MHz so the
+	 * PLL needs to be reprogrammed.
+	 * See SWLINUX-4006.
+	 *
+	 * On the 7364C0, the reference clock for the
+	 * 3.0 PLL has been changed from 50MHz to 54MHz to
+	 * work around a MOCA issue.
+	 * See SWLINUX-4169.
+	 */
+	switch (params->selected_family) {
+	case BRCM_FAMILY_3390A0:
+	case BRCM_FAMILY_7250B0:
+	case BRCM_FAMILY_7366C0:
+	case BRCM_FAMILY_74371A0:
+	case BRCM_FAMILY_7439B0:
+	case BRCM_FAMILY_7445D0:
+	case BRCM_FAMILY_7260A0:
+		return;
+	case BRCM_FAMILY_7364A0:
+		if (BRCM_REV(params->family_id) < 0x20)
+			return;
+		break;
+	}
+
+	/* set USB 3.0 PLL to accept 54Mhz reference clock */
+	USB_CTRL_UNSET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
+
+	brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8000, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x10, 0x5784, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x11, 0x01d0, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x12, 0x1DE8, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x13, 0xAA80, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x14, 0x8826, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x15, 0x0044, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x16, 0x8000, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x17, 0x0851, MDIO_USB3);
+	brcmusb_usb_mdio_write(ctrl_base, 0x18, 0x0000, MDIO_USB3);
+
+	/* both ports */
+	ofs = 0;
+	for (ii = 0; ii < PHY_PORTS; ++ii) {
+		brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8040 + ofs),
+				       MDIO_USB3);
+		brcmusb_usb_mdio_write(ctrl_base, 0x03, 0x0090, MDIO_USB3);
+		brcmusb_usb_mdio_write(ctrl_base, 0x04, 0x0134, MDIO_USB3);
+		brcmusb_usb_mdio_write(ctrl_base, 0x1f, (0x8020 + ofs),
+				       MDIO_USB3);
+		brcmusb_usb_mdio_write(ctrl_base, 0x01, 0x00e2, MDIO_USB3);
+		ofs = PHY_PORT_SELECT_1;
+	}
+
+	/* restart PLL sequence */
+	USB_CTRL_SET(ctrl_base, USB30_CTL1, PHY3_PLL_SEQ_START);
+	/* Give PLL enough time to lock */
+	usleep_range(1000, 2000);
+}
+
+static void brcmusb_usb3_ssc_enable(void __iomem *ctrl_base)
+{
+	u32 val;
+
+	/* Enable USB 3.0 TX spread spectrum */
+	brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x8040, MDIO_USB3);
+	val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
+	brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
+
+	/* Currently, USB 3.0 SSC is enabled via port 0 MDIO registers,
+	 * which should have been adequate. However, due to a bug in the
+	 * USB 3.0 PHY, it must be enabled via both ports (HWUSB3DVT-26).
+	 */
+	brcmusb_usb_mdio_write(ctrl_base, 0x1f, 0x9040, MDIO_USB3);
+	val = brcmusb_usb_mdio_read(ctrl_base, 0x01, MDIO_USB3) | 0xf;
+	brcmusb_usb_mdio_write(ctrl_base, 0x01, val, MDIO_USB3);
+}
+
+static void brcmusb_usb3_phy_workarounds(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl_base = params->ctrl_regs;
+
+	brcmusb_usb3_pll_fix(ctrl_base);
+	brcmusb_usb3_pll_54mhz(params);
+	brcmusb_usb3_ssc_enable(ctrl_base);
+	brcmusb_usb3_enable_pipe_reset(ctrl_base);
+	brcmusb_usb3_enable_sigdet(ctrl_base);
+	brcmusb_usb3_enable_skip_align(ctrl_base);
+	brcmusb_usb3_unfreeze_aeq(ctrl_base);
+}
+
+static void brcmusb_memc_fix(struct brcm_usb_init_params *params)
+{
+	u32 prid;
+
+	if (params->selected_family != BRCM_FAMILY_7445D0)
+		return;
+	/*
+	 * This is a workaround for HW7445-1869 where a DMA write ends up
+	 * doing a read pre-fetch after the end of the DMA buffer. This
+	 * causes a problem when the DMA buffer is at the end of physical
+	 * memory, causing the pre-fetch read to access non-existent memory,
+	 * and the chip bondout has MEMC2 disabled. When the pre-fetch read
+	 * tries to use the disabled MEMC2, it hangs the bus. The workaround
+	 * is to disable MEMC2 access in the usb controller which avoids
+	 * the hang.
+	 */
+
+	prid = params->product_id & 0xfffff000;
+	switch (prid) {
+	case 0x72520000:
+	case 0x74480000:
+	case 0x74490000:
+	case 0x07252000:
+	case 0x07448000:
+	case 0x07449000:
+		USB_CTRL_UNSET_FAMILY(params, SETUP, SCB2_EN);
+	}
+}
+
+static void brcmusb_usb3_otp_fix(struct brcm_usb_init_params *params)
+{
+	void __iomem *xhci_ec_base = params->xhci_ec_regs;
+	u32 val;
+
+	if (params->family_id != 0x74371000 || xhci_ec_base == 0)
+		return;
+	brcmusb_writel(0xa20c, USB_XHCI_EC_REG(xhci_ec_base, IRAADR));
+	val = brcmusb_readl(USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
+
+	/* set cfg_pick_ss_lock */
+	val |= (1 << 27);
+	brcmusb_writel(val, USB_XHCI_EC_REG(xhci_ec_base, IRADAT));
+
+	/* Reset USB 3.0 PHY for workaround to take effect */
+	USB_CTRL_UNSET(params->ctrl_regs, USB30_CTL1, PHY3_RESETB);
+	USB_CTRL_SET(params->ctrl_regs,	USB30_CTL1, PHY3_RESETB);
+}
+
+static void brcmusb_xhci_soft_reset(struct brcm_usb_init_params *params,
+				    int on_off)
+{
+	/* Assert reset */
+	if (on_off) {
+		if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
+			USB_CTRL_UNSET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
+		else
+			USB_CTRL_UNSET_FAMILY(params,
+					      USB30_CTL1, XHC_SOFT_RESETB);
+	} else { /* De-assert reset */
+		if (USB_CTRL_MASK_FAMILY(params, USB_PM, XHC_SOFT_RESETB))
+			USB_CTRL_SET_FAMILY(params, USB_PM, XHC_SOFT_RESETB);
+		else
+			USB_CTRL_SET_FAMILY(params, USB30_CTL1,
+					    XHC_SOFT_RESETB);
+	}
+}
+
+/*
+ * Return the best map table family. The order is:
+ *   - exact match of chip and major rev
+ *   - exact match of chip and closest older major rev
+ *   - default chip/rev.
+ * NOTE: The minor rev is always ignored.
+ */
+static enum brcm_family_type brcmusb_get_family_type(
+	struct brcm_usb_init_params *params)
+{
+	int last_type = -1;
+	u32 last_family = 0;
+	u32 family_no_major;
+	unsigned int x;
+	u32 family;
+
+	family = params->family_id & 0xfffffff0;
+	family_no_major = params->family_id & 0xffffff00;
+	for (x = 0; id_to_type_table[x].id; x++) {
+		if (family == id_to_type_table[x].id)
+			return id_to_type_table[x].type;
+		if (family_no_major == (id_to_type_table[x].id & 0xffffff00))
+			if (family > id_to_type_table[x].id &&
+			    last_family < id_to_type_table[x].id) {
+				last_family = id_to_type_table[x].id;
+				last_type = id_to_type_table[x].type;
+			}
+	}
+
+	/* If no match, return the default family */
+	if (last_type == -1)
+		return id_to_type_table[x].type;
+	return last_type;
+}
+
+void brcm_usb_init_ipp(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->ctrl_regs;
+	u32 reg;
+	u32 orig_reg;
+
+	/* Starting with the 7445d0, there are no longer separate 3.0
+	 * versions of IOC and IPP.
+	 */
+	if (USB_CTRL_MASK_FAMILY(params, USB30_CTL1, USB3_IOC)) {
+		if (params->ioc)
+			USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IOC);
+		if (params->ipp == 1)
+			USB_CTRL_SET_FAMILY(params, USB30_CTL1, USB3_IPP);
+	}
+
+	reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
+	orig_reg = reg;
+	if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_CC_DRD_MODE_ENABLE_SEL))
+		/* Never use the strap, it's going away. */
+		reg &= ~(USB_CTRL_MASK_FAMILY(params,
+					      SETUP,
+					      STRAP_CC_DRD_MODE_ENABLE_SEL));
+	if (USB_CTRL_MASK_FAMILY(params, SETUP, STRAP_IPP_SEL))
+		if (params->ipp != 2)
+			/* override ipp strap pin (if it exits) */
+			reg &= ~(USB_CTRL_MASK_FAMILY(params, SETUP,
+						      STRAP_IPP_SEL));
+
+	/* Override the default OC and PP polarity */
+	reg &= ~(USB_CTRL_MASK(SETUP, IPP) | USB_CTRL_MASK(SETUP, IOC));
+	if (params->ioc)
+		reg |= USB_CTRL_MASK(SETUP, IOC);
+	if (params->ipp == 1 && ((reg & USB_CTRL_MASK(SETUP, IPP)) == 0))
+		reg |= USB_CTRL_MASK(SETUP, IPP);
+	brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+
+	/*
+	 * If we're changing IPP, make sure power is off long enough
+	 * to turn off any connected devices.
+	 */
+	if (reg != orig_reg)
+		msleep(50);
+}
+
+int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->ctrl_regs;
+	u32 reg = 0;
+
+	if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
+		reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+		reg &= USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
+					PORT_MODE);
+	}
+	return reg;
+}
+
+void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params,
+				   int mode)
+{
+	void __iomem *ctrl = params->ctrl_regs;
+	u32 reg;
+
+	if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
+		reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+		reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
+					PORT_MODE);
+		reg |= mode;
+		brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+	}
+}
+
+void brcm_usb_init_common(struct brcm_usb_init_params *params)
+{
+	u32 reg;
+	void __iomem *ctrl = params->ctrl_regs;
+
+	/* Take USB out of power down */
+	if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN)) {
+		USB_CTRL_UNSET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
+		/* 1 millisecond - for USB clocks to settle down */
+		usleep_range(1000, 2000);
+	}
+
+	if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN)) {
+		USB_CTRL_UNSET_FAMILY(params, USB_PM, USB_PWRDN);
+		/* 1 millisecond - for USB clocks to settle down */
+		usleep_range(1000, 2000);
+	}
+
+	if (params->selected_family != BRCM_FAMILY_74371A0 &&
+	    (BRCM_ID(params->family_id) != 0x7364))
+		/*
+		 * HW7439-637: 7439a0 and its derivatives do not have large
+		 * enough descriptor storage for this.
+		 */
+		USB_CTRL_SET_FAMILY(params, SETUP, SS_EHCI64BIT_EN);
+
+	/* Block auto PLL suspend by USB2 PHY (Sasi) */
+	USB_CTRL_SET(ctrl, PLL_CTL, PLL_SUSPEND_EN);
+
+	reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
+	if (params->selected_family == BRCM_FAMILY_7364A0)
+		/* Suppress overcurrent indication from USB30 ports for A0 */
+		reg |= USB_CTRL_MASK_FAMILY(params, SETUP, OC3_DISABLE);
+
+	brcmusb_usb_phy_ldo_fix(ctrl);
+	brcmusb_usb2_eye_fix(ctrl);
+
+	/*
+	 * Make sure the the second and third memory controller
+	 * interfaces are enabled if they exist.
+	 */
+	if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN))
+		reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB1_EN);
+	if (USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN))
+		reg |= USB_CTRL_MASK_FAMILY(params, SETUP, SCB2_EN);
+	brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+
+	brcmusb_memc_fix(params);
+
+	if (USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1, PORT_MODE)) {
+		reg = brcmusb_readl(USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+		reg &= ~USB_CTRL_MASK_FAMILY(params, USB_DEVICE_CTL1,
+					PORT_MODE);
+		reg |= params->mode;
+		brcmusb_writel(reg, USB_CTRL_REG(ctrl, USB_DEVICE_CTL1));
+	}
+	if (USB_CTRL_MASK_FAMILY(params, USB_PM, BDC_SOFT_RESETB)) {
+		switch (params->mode) {
+		case USB_CTLR_MODE_HOST:
+			USB_CTRL_UNSET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
+			break;
+		default:
+			USB_CTRL_SET_FAMILY(params, USB_PM, BDC_SOFT_RESETB);
+		break;
+		}
+	}
+	if (USB_CTRL_MASK_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE)) {
+		if (params->mode == USB_CTLR_MODE_TYPEC_PD)
+			USB_CTRL_SET_FAMILY(params, SETUP, CC_DRD_MODE_ENABLE);
+		else
+			USB_CTRL_UNSET_FAMILY(params, SETUP,
+					      CC_DRD_MODE_ENABLE);
+	}
+}
+
+void brcm_usb_init_eohci(struct brcm_usb_init_params *params)
+{
+	u32 reg;
+	void __iomem *ctrl = params->ctrl_regs;
+
+	if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
+		USB_CTRL_SET_FAMILY(params, USB_PM, USB20_HC_RESETB);
+
+	if (params->selected_family == BRCM_FAMILY_7366C0)
+		/*
+		 * Don't enable this so the memory controller doesn't read
+		 * into memory holes. NOTE: This bit is low true on 7366C0.
+		 */
+		USB_CTRL_SET_FAMILY(params, EBRIDGE, ESTOP_SCB_REQ);
+
+	/* Setup the endian bits */
+	reg = brcmusb_readl(USB_CTRL_REG(ctrl, SETUP));
+	reg &= ~USB_CTRL_SETUP_ENDIAN_BITS;
+	reg |= USB_CTRL_MASK_FAMILY(params, SETUP, ENDIAN);
+	brcmusb_writel(reg, USB_CTRL_REG(ctrl, SETUP));
+}
+
+void brcm_usb_init_xhci(struct brcm_usb_init_params *params)
+{
+	void __iomem *ctrl = params->ctrl_regs;
+
+	if (BRCM_ID(params->family_id) == 0x7366) {
+		/*
+		 * The PHY3_SOFT_RESETB bits default to the wrong state.
+		 */
+		USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB);
+		USB_CTRL_SET(ctrl, USB30_PCTL, PHY3_SOFT_RESETB_P1);
+	}
+
+	/*
+	 * Kick start USB3 PHY
+	 * Make sure it's low to insure a rising edge.
+	 */
+	USB_CTRL_UNSET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
+	USB_CTRL_SET(ctrl, USB30_CTL1, PHY3_PLL_SEQ_START);
+
+	brcmusb_usb3_phy_workarounds(params);
+	brcmusb_xhci_soft_reset(params, 0);
+	brcmusb_usb3_otp_fix(params);
+}
+
+void brcm_usb_uninit_common(struct brcm_usb_init_params *params)
+{
+	if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB_PWRDN))
+		USB_CTRL_SET_FAMILY(params, USB_PM, USB_PWRDN);
+
+	if (USB_CTRL_MASK_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN))
+		USB_CTRL_SET_FAMILY(params, PLL_CTL, PLL_IDDQ_PWRDN);
+}
+
+void brcm_usb_uninit_eohci(struct brcm_usb_init_params *params)
+{
+	if (USB_CTRL_MASK_FAMILY(params, USB_PM, USB20_HC_RESETB))
+		USB_CTRL_UNSET_FAMILY(params, USB_PM, USB20_HC_RESETB);
+}
+
+void brcm_usb_uninit_xhci(struct brcm_usb_init_params *params)
+{
+	brcmusb_xhci_soft_reset(params, 1);
+}
+
+void brcm_usb_set_family_map(struct brcm_usb_init_params *params)
+{
+	int fam;
+
+	fam = brcmusb_get_family_type(params);
+	params->selected_family = fam;
+	params->usb_reg_bits_map =
+		&usb_reg_bits_map_table[fam][0];
+	params->family_name = family_names[fam];
+}
diff --git a/drivers/phy/broadcom/phy-brcm-usb-init.h b/drivers/phy/broadcom/phy-brcm-usb-init.h
new file mode 100644
index 000000000000..bb77b863885e
--- /dev/null
+++ b/drivers/phy/broadcom/phy-brcm-usb-init.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2014-2017 Broadcom
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _USB_BRCM_COMMON_INIT_H
+#define _USB_BRCM_COMMON_INIT_H
+
+#define USB_CTLR_MODE_HOST 0
+#define USB_CTLR_MODE_DEVICE 1
+#define USB_CTLR_MODE_DRD 2
+#define USB_CTLR_MODE_TYPEC_PD 3
+
+struct  brcm_usb_init_params;
+
+struct  brcm_usb_init_params {
+	void __iomem *ctrl_regs;
+	void __iomem *xhci_ec_regs;
+	int ioc;
+	int ipp;
+	int mode;
+	u32 family_id;
+	u32 product_id;
+	int selected_family;
+	const char *family_name;
+	const u32 *usb_reg_bits_map;
+};
+
+void brcm_usb_set_family_map(struct brcm_usb_init_params *params);
+int brcm_usb_init_get_dual_select(struct brcm_usb_init_params *params);
+void brcm_usb_init_set_dual_select(struct brcm_usb_init_params *params,
+				   int mode);
+
+void brcm_usb_init_ipp(struct brcm_usb_init_params *ini);
+void brcm_usb_init_common(struct brcm_usb_init_params *ini);
+void brcm_usb_init_eohci(struct brcm_usb_init_params *ini);
+void brcm_usb_init_xhci(struct brcm_usb_init_params *ini);
+void brcm_usb_uninit_common(struct brcm_usb_init_params *ini);
+void brcm_usb_uninit_eohci(struct brcm_usb_init_params *ini);
+void brcm_usb_uninit_xhci(struct brcm_usb_init_params *ini);
+
+#endif /* _USB_BRCM_COMMON_INIT_H */
diff --git a/drivers/phy/broadcom/phy-brcm-usb.c b/drivers/phy/broadcom/phy-brcm-usb.c
new file mode 100644
index 000000000000..195b98139e5f
--- /dev/null
+++ b/drivers/phy/broadcom/phy-brcm-usb.c
@@ -0,0 +1,459 @@
+/*
+ * phy-brcm-usb.c - Broadcom USB Phy Driver
+ *
+ * Copyright (C) 2015-2017 Broadcom
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/soc/brcmstb/brcmstb.h>
+#include <dt-bindings/phy/phy.h>
+
+#include "phy-brcm-usb-init.h"
+
+static DEFINE_MUTEX(sysfs_lock);
+
+enum brcm_usb_phy_id {
+	BRCM_USB_PHY_2_0 = 0,
+	BRCM_USB_PHY_3_0,
+	BRCM_USB_PHY_ID_MAX
+};
+
+struct value_to_name_map {
+	int value;
+	const char *name;
+};
+
+static struct value_to_name_map brcm_dr_mode_to_name[] = {
+	{ USB_CTLR_MODE_HOST, "host" },
+	{ USB_CTLR_MODE_DEVICE, "peripheral" },
+	{ USB_CTLR_MODE_DRD, "drd" },
+	{ USB_CTLR_MODE_TYPEC_PD, "typec-pd" }
+};
+
+static struct value_to_name_map brcm_dual_mode_to_name[] = {
+	{ 0, "host" },
+	{ 1, "device" },
+	{ 2, "auto" },
+};
+
+struct brcm_usb_phy {
+	struct phy *phy;
+	unsigned int id;
+	bool inited;
+};
+
+struct brcm_usb_phy_data {
+	struct  brcm_usb_init_params ini;
+	bool			has_eohci;
+	bool			has_xhci;
+	struct clk		*usb_20_clk;
+	struct clk		*usb_30_clk;
+	struct mutex		mutex;	/* serialize phy init */
+	int			init_count;
+	struct brcm_usb_phy	phys[BRCM_USB_PHY_ID_MAX];
+};
+
+static int brcm_usb_phy_init(struct phy *gphy)
+{
+	struct brcm_usb_phy *phy = phy_get_drvdata(gphy);
+	struct brcm_usb_phy_data *priv =
+		container_of(phy, struct brcm_usb_phy_data, phys[phy->id]);
+
+	/*
+	 * Use a lock to make sure a second caller waits until
+	 * the base phy is inited before using it.
+	 */
+	mutex_lock(&priv->mutex);
+	if (priv->init_count++ == 0) {
+		clk_enable(priv->usb_20_clk);
+		clk_enable(priv->usb_30_clk);
+		brcm_usb_init_common(&priv->ini);
+	}
+	mutex_unlock(&priv->mutex);
+	if (phy->id == BRCM_USB_PHY_2_0)
+		brcm_usb_init_eohci(&priv->ini);
+	else if (phy->id == BRCM_USB_PHY_3_0)
+		brcm_usb_init_xhci(&priv->ini);
+	phy->inited = true;
+	dev_dbg(&gphy->dev, "INIT, id: %d, total: %d\n", phy->id,
+		priv->init_count);
+
+	return 0;
+}
+
+static int brcm_usb_phy_exit(struct phy *gphy)
+{
+	struct brcm_usb_phy *phy = phy_get_drvdata(gphy);
+	struct brcm_usb_phy_data *priv =
+		container_of(phy, struct brcm_usb_phy_data, phys[phy->id]);
+
+	dev_dbg(&gphy->dev, "EXIT\n");
+	if (phy->id == BRCM_USB_PHY_2_0)
+		brcm_usb_uninit_eohci(&priv->ini);
+	if (phy->id == BRCM_USB_PHY_3_0)
+		brcm_usb_uninit_xhci(&priv->ini);
+
+	/* If both xhci and eohci are gone, reset everything else */
+	mutex_lock(&priv->mutex);
+	if (--priv->init_count == 0) {
+		brcm_usb_uninit_common(&priv->ini);
+		clk_disable(priv->usb_20_clk);
+		clk_disable(priv->usb_30_clk);
+	}
+	mutex_unlock(&priv->mutex);
+	phy->inited = false;
+	return 0;
+}
+
+static struct phy_ops brcm_usb_phy_ops = {
+	.init		= brcm_usb_phy_init,
+	.exit		= brcm_usb_phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static struct phy *brcm_usb_phy_xlate(struct device *dev,
+				      struct of_phandle_args *args)
+{
+	struct brcm_usb_phy_data *data = dev_get_drvdata(dev);
+
+	/*
+	 * values 0 and 1 are for backward compatibility with
+	 * device tree nodes from older bootloaders.
+	 */
+	switch (args->args[0]) {
+	case 0:
+	case PHY_TYPE_USB2:
+		if (data->phys[BRCM_USB_PHY_2_0].phy)
+			return data->phys[BRCM_USB_PHY_2_0].phy;
+		dev_warn(dev, "Error, 2.0 Phy not found\n");
+		break;
+	case 1:
+	case PHY_TYPE_USB3:
+		if (data->phys[BRCM_USB_PHY_3_0].phy)
+			return data->phys[BRCM_USB_PHY_3_0].phy;
+		dev_warn(dev, "Error, 3.0 Phy not found\n");
+		break;
+	}
+	return ERR_PTR(-ENODEV);
+}
+
+static int name_to_value(struct value_to_name_map *table, int count,
+			 const char *name, int *value)
+{
+	int x;
+
+	*value = 0;
+	for (x = 0; x < count; x++) {
+		if (sysfs_streq(name, table[x].name)) {
+			*value = x;
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+static const char *value_to_name(struct value_to_name_map *table, int count,
+				 int value)
+{
+	if (value >= count)
+		return "unknown";
+	return table[value].name;
+}
+
+static ssize_t dr_mode_show(struct device *dev,
+			    struct device_attribute *attr,
+			    char *buf)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%s\n",
+		value_to_name(&brcm_dr_mode_to_name[0],
+			      ARRAY_SIZE(brcm_dr_mode_to_name),
+			      priv->ini.mode));
+}
+static DEVICE_ATTR_RO(dr_mode);
+
+static ssize_t dual_select_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t len)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+	int value;
+	int res;
+
+	mutex_lock(&sysfs_lock);
+	res = name_to_value(&brcm_dual_mode_to_name[0],
+			    ARRAY_SIZE(brcm_dual_mode_to_name), buf, &value);
+	if (!res) {
+		brcm_usb_init_set_dual_select(&priv->ini, value);
+		res = len;
+	}
+	mutex_unlock(&sysfs_lock);
+	return res;
+}
+
+static ssize_t dual_select_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+	int value;
+
+	mutex_lock(&sysfs_lock);
+	value = brcm_usb_init_get_dual_select(&priv->ini);
+	mutex_unlock(&sysfs_lock);
+	return sprintf(buf, "%s\n",
+		value_to_name(&brcm_dual_mode_to_name[0],
+			      ARRAY_SIZE(brcm_dual_mode_to_name),
+			      value));
+}
+static DEVICE_ATTR_RW(dual_select);
+
+static struct attribute *brcm_usb_phy_attrs[] = {
+	&dev_attr_dr_mode.attr,
+	&dev_attr_dual_select.attr,
+	NULL
+};
+
+static const struct attribute_group brcm_usb_phy_group = {
+	.attrs = brcm_usb_phy_attrs,
+};
+
+static int brcm_usb_phy_dvr_init(struct device *dev,
+				 struct brcm_usb_phy_data *priv,
+				 struct device_node *dn)
+{
+	struct phy *gphy;
+	int err;
+
+	priv->usb_20_clk = of_clk_get_by_name(dn, "sw_usb");
+	if (IS_ERR(priv->usb_20_clk)) {
+		dev_info(dev, "Clock not found in Device Tree\n");
+		priv->usb_20_clk = NULL;
+	}
+	err = clk_prepare_enable(priv->usb_20_clk);
+	if (err)
+		return err;
+
+	if (priv->has_eohci) {
+		gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops);
+		if (IS_ERR(gphy)) {
+			dev_err(dev, "failed to create EHCI/OHCI PHY\n");
+			return PTR_ERR(gphy);
+		}
+		priv->phys[BRCM_USB_PHY_2_0].phy = gphy;
+		priv->phys[BRCM_USB_PHY_2_0].id = BRCM_USB_PHY_2_0;
+		phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_2_0]);
+	}
+
+	if (priv->has_xhci) {
+		gphy = devm_phy_create(dev, NULL, &brcm_usb_phy_ops);
+		if (IS_ERR(gphy)) {
+			dev_err(dev, "failed to create XHCI PHY\n");
+			return PTR_ERR(gphy);
+		}
+		priv->phys[BRCM_USB_PHY_3_0].phy = gphy;
+		priv->phys[BRCM_USB_PHY_3_0].id = BRCM_USB_PHY_3_0;
+		phy_set_drvdata(gphy, &priv->phys[BRCM_USB_PHY_3_0]);
+
+		priv->usb_30_clk = of_clk_get_by_name(dn, "sw_usb3");
+		if (IS_ERR(priv->usb_30_clk)) {
+			dev_info(dev,
+				 "USB3.0 clock not found in Device Tree\n");
+			priv->usb_30_clk = NULL;
+		}
+		err = clk_prepare_enable(priv->usb_30_clk);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+
+static int brcm_usb_phy_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct device *dev = &pdev->dev;
+	struct brcm_usb_phy_data *priv;
+	struct phy_provider *phy_provider;
+	struct device_node *dn = pdev->dev.of_node;
+	int err;
+	const char *mode;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+	platform_set_drvdata(pdev, priv);
+
+	priv->ini.family_id = brcmstb_get_family_id();
+	priv->ini.product_id = brcmstb_get_product_id();
+	brcm_usb_set_family_map(&priv->ini);
+	dev_dbg(dev, "Best mapping table is for %s\n",
+		priv->ini.family_name);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "can't get USB_CTRL base address\n");
+		return -EINVAL;
+	}
+	priv->ini.ctrl_regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(priv->ini.ctrl_regs)) {
+		dev_err(dev, "can't map CTRL register space\n");
+		return -EINVAL;
+	}
+
+	/* The XHCI EC registers are optional */
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (res) {
+		priv->ini.xhci_ec_regs =
+			devm_ioremap_resource(dev, res);
+		if (IS_ERR(priv->ini.xhci_ec_regs)) {
+			dev_err(dev, "can't map XHCI EC register space\n");
+			return -EINVAL;
+		}
+	}
+
+	of_property_read_u32(dn, "brcm,ipp", &priv->ini.ipp);
+	of_property_read_u32(dn, "brcm,ioc", &priv->ini.ioc);
+
+	priv->ini.mode = USB_CTLR_MODE_HOST;
+	err = of_property_read_string(dn, "dr_mode", &mode);
+	if (err == 0) {
+		name_to_value(&brcm_dr_mode_to_name[0],
+			      ARRAY_SIZE(brcm_dr_mode_to_name),
+			mode, &priv->ini.mode);
+	}
+	if (of_property_read_bool(dn, "brcm,has_xhci"))
+		priv->has_xhci = true;
+	if (of_property_read_bool(dn, "brcm,has_eohci"))
+		priv->has_eohci = true;
+
+	err = brcm_usb_phy_dvr_init(dev, priv, dn);
+	if (err)
+		return err;
+
+	mutex_init(&priv->mutex);
+
+	/* make sure invert settings are correct */
+	brcm_usb_init_ipp(&priv->ini);
+
+	/*
+	 * Create sysfs entries for mode.
+	 * Remove "dual_select" attribute if not in dual mode
+	 */
+	if (priv->ini.mode != USB_CTLR_MODE_DRD)
+		brcm_usb_phy_attrs[1] = NULL;
+	err = sysfs_create_group(&dev->kobj, &brcm_usb_phy_group);
+	if (err)
+		dev_warn(dev, "Error creating sysfs attributes\n");
+
+	/* start with everything off */
+	if (priv->has_xhci)
+		brcm_usb_uninit_xhci(&priv->ini);
+	if (priv->has_eohci)
+		brcm_usb_uninit_eohci(&priv->ini);
+	brcm_usb_uninit_common(&priv->ini);
+	clk_disable(priv->usb_20_clk);
+	clk_disable(priv->usb_30_clk);
+
+	phy_provider = devm_of_phy_provider_register(dev, brcm_usb_phy_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int brcm_usb_phy_suspend(struct device *dev)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+
+	if (priv->init_count) {
+		clk_disable(priv->usb_20_clk);
+		clk_disable(priv->usb_30_clk);
+	}
+	return 0;
+}
+
+static int brcm_usb_phy_resume(struct device *dev)
+{
+	struct brcm_usb_phy_data *priv = dev_get_drvdata(dev);
+
+	clk_enable(priv->usb_20_clk);
+	clk_enable(priv->usb_30_clk);
+	brcm_usb_init_ipp(&priv->ini);
+
+	/*
+	 * Initialize anything that was previously initialized.
+	 * Uninitialize anything that wasn't previously initialized.
+	 */
+	if (priv->init_count) {
+		brcm_usb_init_common(&priv->ini);
+		if (priv->phys[BRCM_USB_PHY_2_0].inited) {
+			brcm_usb_init_eohci(&priv->ini);
+		} else if (priv->has_eohci) {
+			brcm_usb_uninit_eohci(&priv->ini);
+			clk_disable(priv->usb_20_clk);
+		}
+		if (priv->phys[BRCM_USB_PHY_3_0].inited) {
+			brcm_usb_init_xhci(&priv->ini);
+		} else if (priv->has_xhci) {
+			brcm_usb_uninit_xhci(&priv->ini);
+			clk_disable(priv->usb_30_clk);
+		}
+	} else {
+		if (priv->has_xhci)
+			brcm_usb_uninit_xhci(&priv->ini);
+		if (priv->has_eohci)
+			brcm_usb_uninit_eohci(&priv->ini);
+		brcm_usb_uninit_common(&priv->ini);
+		clk_disable(priv->usb_20_clk);
+		clk_disable(priv->usb_30_clk);
+	}
+
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops brcm_usb_phy_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(brcm_usb_phy_suspend, brcm_usb_phy_resume)
+};
+
+static const struct of_device_id brcm_usb_dt_ids[] = {
+	{ .compatible = "brcm,brcmstb-usb-phy" },
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, brcm_usb_dt_ids);
+
+static struct platform_driver brcm_usb_driver = {
+	.probe		= brcm_usb_phy_probe,
+	.driver		= {
+		.name	= "brcmstb-usb-phy",
+		.owner	= THIS_MODULE,
+		.pm = &brcm_usb_phy_pm_ops,
+		.of_match_table = brcm_usb_dt_ids,
+	},
+};
+
+module_platform_driver(brcm_usb_driver);
+
+MODULE_ALIAS("platform:brcmstb-usb-phy");
+MODULE_AUTHOR("Al Cooper <acooper@broadcom.com>");
+MODULE_DESCRIPTION("BRCM USB PHY driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/lantiq/Kconfig b/drivers/phy/lantiq/Kconfig
new file mode 100644
index 000000000000..326d88a6417d
--- /dev/null
+++ b/drivers/phy/lantiq/Kconfig
@@ -0,0 +1,9 @@
+#
+# Phy drivers for Lantiq / Intel platforms
+#
+config PHY_LANTIQ_RCU_USB2
+	tristate "Lantiq XWAY SoC RCU based USB PHY"
+	depends on OF && (SOC_TYPE_XWAY || COMPILE_TEST)
+	select GENERIC_PHY
+	help
+	  Support for the USB PHY(s) on the Lantiq / Intel XWAY family SoCs.
diff --git a/drivers/phy/lantiq/Makefile b/drivers/phy/lantiq/Makefile
new file mode 100644
index 000000000000..f73eb56a5416
--- /dev/null
+++ b/drivers/phy/lantiq/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_PHY_LANTIQ_RCU_USB2)	+= phy-lantiq-rcu-usb2.o
diff --git a/drivers/phy/lantiq/phy-lantiq-rcu-usb2.c b/drivers/phy/lantiq/phy-lantiq-rcu-usb2.c
new file mode 100644
index 000000000000..986224fca9e9
--- /dev/null
+++ b/drivers/phy/lantiq/phy-lantiq-rcu-usb2.c
@@ -0,0 +1,254 @@
+/*
+ * Lantiq XWAY SoC RCU module based USB 1.1/2.0 PHY driver
+ *
+ * Copyright (C) 2016 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ * Copyright (C) 2017 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+
+/* Transmitter HS Pre-Emphasis Enable */
+#define RCU_CFG1_TX_PEE		BIT(0)
+/* Disconnect Threshold */
+#define RCU_CFG1_DIS_THR_MASK	0x00038000
+#define RCU_CFG1_DIS_THR_SHIFT	15
+
+struct ltq_rcu_usb2_bits {
+	u8 hostmode;
+	u8 slave_endianness;
+	u8 host_endianness;
+	bool have_ana_cfg;
+};
+
+struct ltq_rcu_usb2_priv {
+	struct regmap			*regmap;
+	unsigned int			phy_reg_offset;
+	unsigned int			ana_cfg1_reg_offset;
+	const struct ltq_rcu_usb2_bits	*reg_bits;
+	struct device			*dev;
+	struct phy			*phy;
+	struct clk			*phy_gate_clk;
+	struct reset_control		*ctrl_reset;
+	struct reset_control		*phy_reset;
+};
+
+static const struct ltq_rcu_usb2_bits xway_rcu_usb2_reg_bits = {
+	.hostmode = 11,
+	.slave_endianness = 9,
+	.host_endianness = 10,
+	.have_ana_cfg = false,
+};
+
+static const struct ltq_rcu_usb2_bits xrx100_rcu_usb2_reg_bits = {
+	.hostmode = 11,
+	.slave_endianness = 17,
+	.host_endianness = 10,
+	.have_ana_cfg = false,
+};
+
+static const struct ltq_rcu_usb2_bits xrx200_rcu_usb2_reg_bits = {
+	.hostmode = 11,
+	.slave_endianness = 9,
+	.host_endianness = 10,
+	.have_ana_cfg = true,
+};
+
+static const struct of_device_id ltq_rcu_usb2_phy_of_match[] = {
+	{
+		.compatible = "lantiq,ase-usb2-phy",
+		.data = &xway_rcu_usb2_reg_bits,
+	},
+	{
+		.compatible = "lantiq,danube-usb2-phy",
+		.data = &xway_rcu_usb2_reg_bits,
+	},
+	{
+		.compatible = "lantiq,xrx100-usb2-phy",
+		.data = &xrx100_rcu_usb2_reg_bits,
+	},
+	{
+		.compatible = "lantiq,xrx200-usb2-phy",
+		.data = &xrx200_rcu_usb2_reg_bits,
+	},
+	{
+		.compatible = "lantiq,xrx300-usb2-phy",
+		.data = &xrx200_rcu_usb2_reg_bits,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, ltq_rcu_usb2_phy_of_match);
+
+static int ltq_rcu_usb2_phy_init(struct phy *phy)
+{
+	struct ltq_rcu_usb2_priv *priv = phy_get_drvdata(phy);
+
+	if (priv->reg_bits->have_ana_cfg) {
+		regmap_update_bits(priv->regmap, priv->ana_cfg1_reg_offset,
+			RCU_CFG1_TX_PEE, RCU_CFG1_TX_PEE);
+		regmap_update_bits(priv->regmap, priv->ana_cfg1_reg_offset,
+			RCU_CFG1_DIS_THR_MASK, 7 << RCU_CFG1_DIS_THR_SHIFT);
+	}
+
+	/* Configure core to host mode */
+	regmap_update_bits(priv->regmap, priv->phy_reg_offset,
+			   BIT(priv->reg_bits->hostmode), 0);
+
+	/* Select DMA endianness (Host-endian: big-endian) */
+	regmap_update_bits(priv->regmap, priv->phy_reg_offset,
+		BIT(priv->reg_bits->slave_endianness), 0);
+	regmap_update_bits(priv->regmap, priv->phy_reg_offset,
+		BIT(priv->reg_bits->host_endianness),
+		BIT(priv->reg_bits->host_endianness));
+
+	return 0;
+}
+
+static int ltq_rcu_usb2_phy_power_on(struct phy *phy)
+{
+	struct ltq_rcu_usb2_priv *priv = phy_get_drvdata(phy);
+	struct device *dev = priv->dev;
+	int ret;
+
+	reset_control_deassert(priv->phy_reset);
+
+	ret = clk_prepare_enable(priv->phy_gate_clk);
+	if (ret)
+		dev_err(dev, "failed to enable PHY gate\n");
+
+	return ret;
+}
+
+static int ltq_rcu_usb2_phy_power_off(struct phy *phy)
+{
+	struct ltq_rcu_usb2_priv *priv = phy_get_drvdata(phy);
+
+	reset_control_assert(priv->phy_reset);
+
+	clk_disable_unprepare(priv->phy_gate_clk);
+
+	return 0;
+}
+
+static struct phy_ops ltq_rcu_usb2_phy_ops = {
+	.init		= ltq_rcu_usb2_phy_init,
+	.power_on	= ltq_rcu_usb2_phy_power_on,
+	.power_off	= ltq_rcu_usb2_phy_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static int ltq_rcu_usb2_of_parse(struct ltq_rcu_usb2_priv *priv,
+				 struct platform_device *pdev)
+{
+	struct device *dev = priv->dev;
+	const __be32 *offset;
+	int ret;
+
+	priv->reg_bits = of_device_get_match_data(dev);
+
+	priv->regmap = syscon_node_to_regmap(dev->of_node->parent);
+	if (IS_ERR(priv->regmap)) {
+		dev_err(dev, "Failed to lookup RCU regmap\n");
+		return PTR_ERR(priv->regmap);
+	}
+
+	offset = of_get_address(dev->of_node, 0, NULL, NULL);
+	if (!offset) {
+		dev_err(dev, "Failed to get RCU PHY reg offset\n");
+		return -ENOENT;
+	}
+	priv->phy_reg_offset = __be32_to_cpu(*offset);
+
+	if (priv->reg_bits->have_ana_cfg) {
+		offset = of_get_address(dev->of_node, 1, NULL, NULL);
+		if (!offset) {
+			dev_err(dev, "Failed to get RCU ANA CFG1 reg offset\n");
+			return -ENOENT;
+		}
+		priv->ana_cfg1_reg_offset = __be32_to_cpu(*offset);
+	}
+
+	priv->phy_gate_clk = devm_clk_get(dev, "phy");
+	if (IS_ERR(priv->phy_gate_clk)) {
+		dev_err(dev, "Unable to get USB phy gate clk\n");
+		return PTR_ERR(priv->phy_gate_clk);
+	}
+
+	priv->ctrl_reset = devm_reset_control_get_shared(dev, "ctrl");
+	if (IS_ERR(priv->ctrl_reset)) {
+		if (PTR_ERR(priv->ctrl_reset) != -EPROBE_DEFER)
+			dev_err(dev, "failed to get 'ctrl' reset\n");
+		return PTR_ERR(priv->ctrl_reset);
+	}
+
+	priv->phy_reset = devm_reset_control_get_optional(dev, "phy");
+	if (IS_ERR(priv->phy_reset))
+		return PTR_ERR(priv->phy_reset);
+
+	return 0;
+}
+
+static int ltq_rcu_usb2_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct ltq_rcu_usb2_priv *priv;
+	struct phy_provider *provider;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = dev;
+
+	ret = ltq_rcu_usb2_of_parse(priv, pdev);
+	if (ret)
+		return ret;
+
+	/* Reset USB core through reset controller */
+	reset_control_deassert(priv->ctrl_reset);
+
+	reset_control_assert(priv->phy_reset);
+
+	priv->phy = devm_phy_create(dev, dev->of_node, &ltq_rcu_usb2_phy_ops);
+	if (IS_ERR(priv->phy)) {
+		dev_err(dev, "failed to create PHY\n");
+		return PTR_ERR(priv->phy);
+	}
+
+	phy_set_drvdata(priv->phy, priv);
+
+	provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(provider))
+		return PTR_ERR(provider);
+
+	dev_set_drvdata(priv->dev, priv);
+	return 0;
+}
+
+static struct platform_driver ltq_rcu_usb2_phy_driver = {
+	.probe	= ltq_rcu_usb2_phy_probe,
+	.driver = {
+		.name	= "lantiq-rcu-usb2-phy",
+		.of_match_table	= ltq_rcu_usb2_phy_of_match,
+	}
+};
+module_platform_driver(ltq_rcu_usb2_phy_driver);
+
+MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
+MODULE_DESCRIPTION("Lantiq XWAY USB2 PHY driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/marvell/Makefile b/drivers/phy/marvell/Makefile
index 0cf6a7cbaf9f..5c3ec5d10e0d 100644
--- a/drivers/phy/marvell/Makefile
+++ b/drivers/phy/marvell/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ARMADA375_USBCLUSTER_PHY)	+= phy-armada375-usb2.o
 obj-$(CONFIG_PHY_BERLIN_SATA)		+= phy-berlin-sata.o
 obj-$(CONFIG_PHY_BERLIN_USB)		+= phy-berlin-usb.o
diff --git a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
index 73ebad6634a7..a0d522154cdf 100644
--- a/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
+++ b/drivers/phy/marvell/phy-mvebu-cp110-comphy.c
@@ -111,6 +111,8 @@
 #define     MVEBU_COMPHY_CONF6_40B		BIT(18)
 #define MVEBU_COMPHY_SELECTOR			0x1140
 #define     MVEBU_COMPHY_SELECTOR_PHY(n)	((n) * 0x4)
+#define MVEBU_COMPHY_PIPE_SELECTOR		0x1144
+#define     MVEBU_COMPHY_PIPE_SELECTOR_PIPE(n)	((n) * 0x4)
 
 #define MVEBU_COMPHY_LANES	6
 #define MVEBU_COMPHY_PORTS	3
@@ -152,7 +154,6 @@ struct mvebu_comphy_priv {
 	void __iomem *base;
 	struct regmap *regmap;
 	struct device *dev;
-	int modes[MVEBU_COMPHY_LANES];
 };
 
 struct mvebu_comphy_lane {
@@ -468,13 +469,17 @@ static int mvebu_comphy_power_on(struct phy *phy)
 {
 	struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
 	struct mvebu_comphy_priv *priv = lane->priv;
-	int ret;
-	u32 mux, val;
+	int ret, mux;
+	u32 val;
 
 	mux = mvebu_comphy_get_mux(lane->id, lane->port, lane->mode);
 	if (mux < 0)
 		return -ENOTSUPP;
 
+	regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
+
 	regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val);
 	val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
 	val |= mux << MVEBU_COMPHY_SELECTOR_PHY(lane->id);
@@ -526,6 +531,10 @@ static int mvebu_comphy_power_off(struct phy *phy)
 	val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
 	regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val);
 
+	regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
+	val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
+	regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
+
 	return 0;
 }
 
@@ -576,8 +585,8 @@ static int mvebu_comphy_probe(struct platform_device *pdev)
 		return PTR_ERR(priv->regmap);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	priv->base = devm_ioremap_resource(&pdev->dev, res);
-	if (!priv->base)
-		return -ENOMEM;
+	if (IS_ERR(priv->base))
+		return PTR_ERR(priv->base);
 
 	for_each_available_child_of_node(pdev->dev.of_node, child) {
 		struct mvebu_comphy_lane *lane;
diff --git a/drivers/phy/mediatek/phy-mtk-tphy.c b/drivers/phy/mediatek/phy-mtk-tphy.c
index e3baad78521f..402385f2562a 100644
--- a/drivers/phy/mediatek/phy-mtk-tphy.c
+++ b/drivers/phy/mediatek/phy-mtk-tphy.c
@@ -27,6 +27,7 @@
 /* banks shared by multiple phys */
 #define SSUSB_SIFSLV_V1_SPLLC		0x000	/* shared by u3 phys */
 #define SSUSB_SIFSLV_V1_U2FREQ		0x100	/* shared by u2 phys */
+#define SSUSB_SIFSLV_V1_CHIP		0x300	/* shared by u3 phys */
 /* u2 phy bank */
 #define SSUSB_SIFSLV_V1_U2PHY_COM	0x000
 /* u3/pcie/sata phy banks */
@@ -95,9 +96,11 @@
 
 #define U3P_U2PHYDTM1		0x06C
 #define P2C_RG_UART_EN			BIT(16)
+#define P2C_FORCE_IDDIG		BIT(9)
 #define P2C_RG_VBUSVALID		BIT(5)
 #define P2C_RG_SESSEND			BIT(4)
 #define P2C_RG_AVALID			BIT(2)
+#define P2C_RG_IDDIG			BIT(1)
 
 #define U3P_U3_CHIP_GPIO_CTLD		0x0c
 #define P3C_REG_IP_SW_RST		BIT(31)
@@ -584,6 +587,31 @@ static void u2_phy_instance_exit(struct mtk_tphy *tphy,
 	}
 }
 
+static void u2_phy_instance_set_mode(struct mtk_tphy *tphy,
+				     struct mtk_phy_instance *instance,
+				     enum phy_mode mode)
+{
+	struct u2phy_banks *u2_banks = &instance->u2_banks;
+	u32 tmp;
+
+	tmp = readl(u2_banks->com + U3P_U2PHYDTM1);
+	switch (mode) {
+	case PHY_MODE_USB_DEVICE:
+		tmp |= P2C_FORCE_IDDIG | P2C_RG_IDDIG;
+		break;
+	case PHY_MODE_USB_HOST:
+		tmp |= P2C_FORCE_IDDIG;
+		tmp &= ~P2C_RG_IDDIG;
+		break;
+	case PHY_MODE_USB_OTG:
+		tmp &= ~(P2C_FORCE_IDDIG | P2C_RG_IDDIG);
+		break;
+	default:
+		return;
+	}
+	writel(tmp, u2_banks->com + U3P_U2PHYDTM1);
+}
+
 static void pcie_phy_instance_init(struct mtk_tphy *tphy,
 	struct mtk_phy_instance *instance)
 {
@@ -762,7 +790,7 @@ static void phy_v1_banks_init(struct mtk_tphy *tphy,
 	case PHY_TYPE_USB3:
 	case PHY_TYPE_PCIE:
 		u3_banks->spllc = tphy->sif_base + SSUSB_SIFSLV_V1_SPLLC;
-		u3_banks->chip = NULL;
+		u3_banks->chip = tphy->sif_base + SSUSB_SIFSLV_V1_CHIP;
 		u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD;
 		u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V1_U3PHYA;
 		break;
@@ -880,6 +908,17 @@ static int mtk_phy_exit(struct phy *phy)
 	return 0;
 }
 
+static int mtk_phy_set_mode(struct phy *phy, enum phy_mode mode)
+{
+	struct mtk_phy_instance *instance = phy_get_drvdata(phy);
+	struct mtk_tphy *tphy = dev_get_drvdata(phy->dev.parent);
+
+	if (instance->type == PHY_TYPE_USB2)
+		u2_phy_instance_set_mode(tphy, instance, mode);
+
+	return 0;
+}
+
 static struct phy *mtk_phy_xlate(struct device *dev,
 					struct of_phandle_args *args)
 {
@@ -930,6 +969,7 @@ static const struct phy_ops mtk_tphy_ops = {
 	.exit		= mtk_phy_exit,
 	.power_on	= mtk_phy_power_on,
 	.power_off	= mtk_phy_power_off,
+	.set_mode	= mtk_phy_set_mode,
 	.owner		= THIS_MODULE,
 };
 
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index a268f4d6f3e9..b4964b067aec 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -372,6 +372,21 @@ int phy_reset(struct phy *phy)
 }
 EXPORT_SYMBOL_GPL(phy_reset);
 
+int phy_calibrate(struct phy *phy)
+{
+	int ret;
+
+	if (!phy || !phy->ops->calibrate)
+		return 0;
+
+	mutex_lock(&phy->mutex);
+	ret = phy->ops->calibrate(phy);
+	mutex_unlock(&phy->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(phy_calibrate);
+
 /**
  * _of_phy_get() - lookup and obtain a reference to a phy by phandle
  * @np: device_node for which to get the phy
diff --git a/drivers/phy/qualcomm/Makefile b/drivers/phy/qualcomm/Makefile
index 2e183d7695fd..9abb7899762a 100644
--- a/drivers/phy/qualcomm/Makefile
+++ b/drivers/phy/qualcomm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PHY_QCOM_APQ8064_SATA)	+= phy-qcom-apq8064-sata.o
 obj-$(CONFIG_PHY_QCOM_IPQ806X_SATA)	+= phy-qcom-ipq806x-sata.o
 obj-$(CONFIG_PHY_QCOM_QMP)		+= phy-qcom-qmp.o
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-i.h b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
index 13b02b7de30b..822c83b8efcd 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs-i.h
+++ b/drivers/phy/qualcomm/phy-qcom-ufs-i.h
@@ -114,14 +114,16 @@ struct ufs_qcom_phy {
 	struct ufs_qcom_phy_calibration *cached_regs;
 	int cached_regs_table_size;
 	bool is_powered_on;
+	bool is_started;
 	struct ufs_qcom_phy_specific_ops *phy_spec_ops;
+
+	enum phy_mode mode;
 };
 
 /**
  * struct ufs_qcom_phy_specific_ops - set of pointers to functions which have a
  * specific implementation per phy. Each UFS phy, should implement
  * those functions according to its spec and requirements
- * @calibrate_phy: pointer to a function that calibrate the phy
  * @start_serdes: pointer to a function that starts the serdes
  * @is_physical_coding_sublayer_ready: pointer to a function that
  * checks pcs readiness. returns 0 for success and non-zero for error.
@@ -130,7 +132,6 @@ struct ufs_qcom_phy {
  * and writes to QSERDES_RX_SIGDET_CNTRL attribute
  */
 struct ufs_qcom_phy_specific_ops {
-	int (*calibrate_phy)(struct ufs_qcom_phy *phy, bool is_rate_B);
 	void (*start_serdes)(struct ufs_qcom_phy *phy);
 	int (*is_physical_coding_sublayer_ready)(struct ufs_qcom_phy *phy);
 	void (*set_tx_lane_enable)(struct ufs_qcom_phy *phy, u32 val);
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c
index 12a1b498dc4b..ba1895b76a5d 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c
+++ b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-14nm.c
@@ -44,7 +44,19 @@ void ufs_qcom_phy_qmp_14nm_advertise_quirks(struct ufs_qcom_phy *phy_common)
 
 static int ufs_qcom_phy_qmp_14nm_init(struct phy *generic_phy)
 {
-	return 0;
+	struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy);
+	bool is_rate_B = false;
+	int ret;
+
+	if (phy_common->mode == PHY_MODE_UFS_HS_B)
+		is_rate_B = true;
+
+	ret = ufs_qcom_phy_qmp_14nm_phy_calibrate(phy_common, is_rate_B);
+	if (!ret)
+		/* phy calibrated, but yet to be started */
+		phy_common->is_started = false;
+
+	return ret;
 }
 
 static int ufs_qcom_phy_qmp_14nm_exit(struct phy *generic_phy)
@@ -53,6 +65,19 @@ static int ufs_qcom_phy_qmp_14nm_exit(struct phy *generic_phy)
 }
 
 static
+int ufs_qcom_phy_qmp_14nm_set_mode(struct phy *generic_phy, enum phy_mode mode)
+{
+	struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy);
+
+	phy_common->mode = PHY_MODE_INVALID;
+
+	if (mode > 0)
+		phy_common->mode = mode;
+
+	return 0;
+}
+
+static
 void ufs_qcom_phy_qmp_14nm_power_control(struct ufs_qcom_phy *phy, bool val)
 {
 	writel_relaxed(val ? 0x1 : 0x0, phy->mmio + UFS_PHY_POWER_DOWN_CONTROL);
@@ -102,11 +127,11 @@ static const struct phy_ops ufs_qcom_phy_qmp_14nm_phy_ops = {
 	.exit		= ufs_qcom_phy_qmp_14nm_exit,
 	.power_on	= ufs_qcom_phy_power_on,
 	.power_off	= ufs_qcom_phy_power_off,
+	.set_mode	= ufs_qcom_phy_qmp_14nm_set_mode,
 	.owner		= THIS_MODULE,
 };
 
 static struct ufs_qcom_phy_specific_ops phy_14nm_ops = {
-	.calibrate_phy		= ufs_qcom_phy_qmp_14nm_phy_calibrate,
 	.start_serdes		= ufs_qcom_phy_qmp_14nm_start_serdes,
 	.is_physical_coding_sublayer_ready = ufs_qcom_phy_qmp_14nm_is_pcs_ready,
 	.set_tx_lane_enable	= ufs_qcom_phy_qmp_14nm_set_tx_lane_enable,
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c
index 4f68acb58b73..49f435c71147 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c
+++ b/drivers/phy/qualcomm/phy-qcom-ufs-qmp-20nm.c
@@ -63,7 +63,19 @@ void ufs_qcom_phy_qmp_20nm_advertise_quirks(struct ufs_qcom_phy *phy_common)
 
 static int ufs_qcom_phy_qmp_20nm_init(struct phy *generic_phy)
 {
-	return 0;
+	struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy);
+	bool is_rate_B = false;
+	int ret;
+
+	if (phy_common->mode == PHY_MODE_UFS_HS_B)
+		is_rate_B = true;
+
+	ret = ufs_qcom_phy_qmp_20nm_phy_calibrate(phy_common, is_rate_B);
+	if (!ret)
+		/* phy calibrated, but yet to be started */
+		phy_common->is_started = false;
+
+	return ret;
 }
 
 static int ufs_qcom_phy_qmp_20nm_exit(struct phy *generic_phy)
@@ -72,6 +84,19 @@ static int ufs_qcom_phy_qmp_20nm_exit(struct phy *generic_phy)
 }
 
 static
+int ufs_qcom_phy_qmp_20nm_set_mode(struct phy *generic_phy, enum phy_mode mode)
+{
+	struct ufs_qcom_phy *phy_common = get_ufs_qcom_phy(generic_phy);
+
+	phy_common->mode = PHY_MODE_INVALID;
+
+	if (mode > 0)
+		phy_common->mode = mode;
+
+	return 0;
+}
+
+static
 void ufs_qcom_phy_qmp_20nm_power_control(struct ufs_qcom_phy *phy, bool val)
 {
 	bool hibern8_exit_after_pwr_collapse = phy->quirks &
@@ -160,11 +185,11 @@ static const struct phy_ops ufs_qcom_phy_qmp_20nm_phy_ops = {
 	.exit		= ufs_qcom_phy_qmp_20nm_exit,
 	.power_on	= ufs_qcom_phy_power_on,
 	.power_off	= ufs_qcom_phy_power_off,
+	.set_mode	= ufs_qcom_phy_qmp_20nm_set_mode,
 	.owner		= THIS_MODULE,
 };
 
 static struct ufs_qcom_phy_specific_ops phy_20nm_ops = {
-	.calibrate_phy		= ufs_qcom_phy_qmp_20nm_phy_calibrate,
 	.start_serdes		= ufs_qcom_phy_qmp_20nm_start_serdes,
 	.is_physical_coding_sublayer_ready = ufs_qcom_phy_qmp_20nm_is_pcs_ready,
 	.set_tx_lane_enable	= ufs_qcom_phy_qmp_20nm_set_tx_lane_enable,
diff --git a/drivers/phy/qualcomm/phy-qcom-ufs.c b/drivers/phy/qualcomm/phy-qcom-ufs.c
index 43865ef340e2..c5ff4525edef 100644
--- a/drivers/phy/qualcomm/phy-qcom-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-ufs.c
@@ -518,9 +518,8 @@ void ufs_qcom_phy_disable_iface_clk(struct ufs_qcom_phy *phy)
 	}
 }
 
-int ufs_qcom_phy_start_serdes(struct phy *generic_phy)
+static int ufs_qcom_phy_start_serdes(struct ufs_qcom_phy *ufs_qcom_phy)
 {
-	struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy);
 	int ret = 0;
 
 	if (!ufs_qcom_phy->phy_spec_ops->start_serdes) {
@@ -533,7 +532,6 @@ int ufs_qcom_phy_start_serdes(struct phy *generic_phy)
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(ufs_qcom_phy_start_serdes);
 
 int ufs_qcom_phy_set_tx_lane_enable(struct phy *generic_phy, u32 tx_lanes)
 {
@@ -564,31 +562,8 @@ void ufs_qcom_phy_save_controller_version(struct phy *generic_phy,
 }
 EXPORT_SYMBOL_GPL(ufs_qcom_phy_save_controller_version);
 
-int ufs_qcom_phy_calibrate_phy(struct phy *generic_phy, bool is_rate_B)
-{
-	struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy);
-	int ret = 0;
-
-	if (!ufs_qcom_phy->phy_spec_ops->calibrate_phy) {
-		dev_err(ufs_qcom_phy->dev, "%s: calibrate_phy() callback is not supported\n",
-			__func__);
-		ret = -ENOTSUPP;
-	} else {
-		ret = ufs_qcom_phy->phy_spec_ops->
-				calibrate_phy(ufs_qcom_phy, is_rate_B);
-		if (ret)
-			dev_err(ufs_qcom_phy->dev, "%s: calibrate_phy() failed %d\n",
-				__func__, ret);
-	}
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(ufs_qcom_phy_calibrate_phy);
-
-int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy)
+static int ufs_qcom_phy_is_pcs_ready(struct ufs_qcom_phy *ufs_qcom_phy)
 {
-	struct ufs_qcom_phy *ufs_qcom_phy = get_ufs_qcom_phy(generic_phy);
-
 	if (!ufs_qcom_phy->phy_spec_ops->is_physical_coding_sublayer_ready) {
 		dev_err(ufs_qcom_phy->dev, "%s: is_physical_coding_sublayer_ready() callback is not supported\n",
 			__func__);
@@ -598,7 +573,6 @@ int ufs_qcom_phy_is_pcs_ready(struct phy *generic_phy)
 	return ufs_qcom_phy->phy_spec_ops->
 			is_physical_coding_sublayer_ready(ufs_qcom_phy);
 }
-EXPORT_SYMBOL_GPL(ufs_qcom_phy_is_pcs_ready);
 
 int ufs_qcom_phy_power_on(struct phy *generic_phy)
 {
@@ -609,6 +583,18 @@ int ufs_qcom_phy_power_on(struct phy *generic_phy)
 	if (phy_common->is_powered_on)
 		return 0;
 
+	if (!phy_common->is_started) {
+		err = ufs_qcom_phy_start_serdes(phy_common);
+		if (err)
+			return err;
+
+		err = ufs_qcom_phy_is_pcs_ready(phy_common);
+		if (err)
+			return err;
+
+		phy_common->is_started = true;
+	}
+
 	err = ufs_qcom_phy_enable_vreg(dev, &phy_common->vdda_phy);
 	if (err) {
 		dev_err(dev, "%s enable vdda_phy failed, err=%d\n",
diff --git a/drivers/phy/renesas/phy-rcar-gen3-usb2.c b/drivers/phy/renesas/phy-rcar-gen3-usb2.c
index 54c34298a000..9c90e7d67e0a 100644
--- a/drivers/phy/renesas/phy-rcar-gen3-usb2.c
+++ b/drivers/phy/renesas/phy-rcar-gen3-usb2.c
@@ -1,7 +1,7 @@
 /*
  * Renesas R-Car Gen3 for USB2.0 PHY driver
  *
- * Copyright (C) 2015 Renesas Electronics Corporation
+ * Copyright (C) 2015-2017 Renesas Electronics Corporation
  *
  * This is based on the phy-rcar-gen2 driver:
  * Copyright (C) 2014 Renesas Solutions Corp.
@@ -12,16 +12,18 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regulator/consumer.h>
+#include <linux/usb/of.h>
 #include <linux/workqueue.h>
 
 /******* USB2.0 Host registers (original offset is +0x200) *******/
@@ -79,6 +81,8 @@
 #define USB2_ADPCTRL_IDPULLUP		BIT(5)	/* 1 = ID sampling is enabled */
 #define USB2_ADPCTRL_DRVVBUS		BIT(4)
 
+#define RCAR_GEN3_PHY_HAS_DEDICATED_PINS	1
+
 struct rcar_gen3_chan {
 	void __iomem *base;
 	struct extcon_dev *extcon;
@@ -86,7 +90,7 @@ struct rcar_gen3_chan {
 	struct regulator *vbus;
 	struct work_struct work;
 	bool extcon_host;
-	bool has_otg;
+	bool has_otg_pins;
 };
 
 static void rcar_gen3_phy_usb2_work(struct work_struct *work)
@@ -218,33 +222,40 @@ static bool rcar_gen3_is_host(struct rcar_gen3_chan *ch)
 	return !(readl(ch->base + USB2_COMMCTRL) & USB2_COMMCTRL_OTG_PERI);
 }
 
+static enum phy_mode rcar_gen3_get_phy_mode(struct rcar_gen3_chan *ch)
+{
+	if (rcar_gen3_is_host(ch))
+		return PHY_MODE_USB_HOST;
+
+	return PHY_MODE_USB_DEVICE;
+}
+
 static ssize_t role_store(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
 	struct rcar_gen3_chan *ch = dev_get_drvdata(dev);
-	bool is_b_device, is_host, new_mode_is_host;
+	bool is_b_device;
+	enum phy_mode cur_mode, new_mode;
 
-	if (!ch->has_otg || !ch->phy->init_count)
+	if (!ch->has_otg_pins || !ch->phy->init_count)
 		return -EIO;
 
-	/*
-	 * is_b_device: true is B-Device. false is A-Device.
-	 * If {new_mode_}is_host: true is Host mode. false is Peripheral mode.
-	 */
-	is_b_device = rcar_gen3_check_id(ch);
-	is_host = rcar_gen3_is_host(ch);
 	if (!strncmp(buf, "host", strlen("host")))
-		new_mode_is_host = true;
+		new_mode = PHY_MODE_USB_HOST;
 	else if (!strncmp(buf, "peripheral", strlen("peripheral")))
-		new_mode_is_host = false;
+		new_mode = PHY_MODE_USB_DEVICE;
 	else
 		return -EINVAL;
 
+	/* is_b_device: true is B-Device. false is A-Device. */
+	is_b_device = rcar_gen3_check_id(ch);
+	cur_mode = rcar_gen3_get_phy_mode(ch);
+
 	/* If current and new mode is the same, this returns the error */
-	if (is_host == new_mode_is_host)
+	if (cur_mode == new_mode)
 		return -EINVAL;
 
-	if (new_mode_is_host) {		/* And is_host must be false */
+	if (new_mode == PHY_MODE_USB_HOST) { /* And is_host must be false */
 		if (!is_b_device)	/* A-Peripheral */
 			rcar_gen3_init_from_a_peri_to_a_host(ch);
 		else			/* B-Peripheral */
@@ -264,7 +275,7 @@ static ssize_t role_show(struct device *dev, struct device_attribute *attr,
 {
 	struct rcar_gen3_chan *ch = dev_get_drvdata(dev);
 
-	if (!ch->has_otg || !ch->phy->init_count)
+	if (!ch->has_otg_pins || !ch->phy->init_count)
 		return -EIO;
 
 	return sprintf(buf, "%s\n", rcar_gen3_is_host(ch) ? "host" :
@@ -303,7 +314,7 @@ static int rcar_gen3_phy_usb2_init(struct phy *p)
 	writel(USB2_OC_TIMSET_INIT, usb2_base + USB2_OC_TIMSET);
 
 	/* Initialize otg part */
-	if (channel->has_otg)
+	if (channel->has_otg_pins)
 		rcar_gen3_init_otg(channel);
 
 	return 0;
@@ -377,9 +388,17 @@ static irqreturn_t rcar_gen3_phy_usb2_irq(int irq, void *_ch)
 }
 
 static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = {
-	{ .compatible = "renesas,usb2-phy-r8a7795" },
-	{ .compatible = "renesas,usb2-phy-r8a7796" },
-	{ .compatible = "renesas,rcar-gen3-usb2-phy" },
+	{
+		.compatible = "renesas,usb2-phy-r8a7795",
+		.data = (void *)RCAR_GEN3_PHY_HAS_DEDICATED_PINS,
+	},
+	{
+		.compatible = "renesas,usb2-phy-r8a7796",
+		.data = (void *)RCAR_GEN3_PHY_HAS_DEDICATED_PINS,
+	},
+	{
+		.compatible = "renesas,rcar-gen3-usb2-phy",
+	},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, rcar_gen3_phy_usb2_match_table);
@@ -415,14 +434,17 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
 	/* call request_irq for OTG */
 	irq = platform_get_irq(pdev, 0);
 	if (irq >= 0) {
-		int ret;
-
 		INIT_WORK(&channel->work, rcar_gen3_phy_usb2_work);
 		irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq,
 				       IRQF_SHARED, dev_name(dev), channel);
 		if (irq < 0)
 			dev_err(dev, "No irq handler (%d)\n", irq);
-		channel->has_otg = true;
+	}
+
+	if (of_usb_get_dr_mode_by_phy(dev->of_node, 0) == USB_DR_MODE_OTG) {
+		int ret;
+
+		channel->has_otg_pins = (uintptr_t)of_device_get_match_data(dev);
 		channel->extcon = devm_extcon_dev_allocate(dev,
 							rcar_gen3_phy_cable);
 		if (IS_ERR(channel->extcon))
@@ -464,7 +486,7 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
 		dev_err(dev, "Failed to register PHY provider\n");
 		ret = PTR_ERR(provider);
 		goto error;
-	} else if (channel->has_otg) {
+	} else if (channel->has_otg_pins) {
 		int ret;
 
 		ret = device_create_file(dev, &dev_attr_role);
@@ -484,7 +506,7 @@ static int rcar_gen3_phy_usb2_remove(struct platform_device *pdev)
 {
 	struct rcar_gen3_chan *channel = platform_get_drvdata(pdev);
 
-	if (channel->has_otg)
+	if (channel->has_otg_pins)
 		device_remove_file(&pdev->dev, &dev_attr_role);
 
 	pm_runtime_disable(&pdev->dev);
diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile
index bd0acdf38e0f..7f149d989046 100644
--- a/drivers/phy/rockchip/Makefile
+++ b/drivers/phy/rockchip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PHY_ROCKCHIP_DP)		+= phy-rockchip-dp.o
 obj-$(CONFIG_PHY_ROCKCHIP_EMMC)		+= phy-rockchip-emmc.o
 obj-$(CONFIG_PHY_ROCKCHIP_INNO_USB2)	+= phy-rockchip-inno-usb2.o
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index ee7ce5ee53f9..5049dac79bd0 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -17,7 +17,7 @@
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/delay.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/gpio/consumer.h>
diff --git a/drivers/phy/rockchip/phy-rockchip-typec.c b/drivers/phy/rockchip/phy-rockchip-typec.c
index 4d2c57f21d76..ee85fa0ca4b0 100644
--- a/drivers/phy/rockchip/phy-rockchip-typec.c
+++ b/drivers/phy/rockchip/phy-rockchip-typec.c
@@ -102,9 +102,40 @@
 #define CMN_PLL1_SS_CTRL1		(0xb8 << 2)
 #define CMN_PLL1_SS_CTRL2		(0xb9 << 2)
 #define CMN_RXCAL_OVRD			(0xd1 << 2)
+
 #define CMN_TXPUCAL_CTRL		(0xe0 << 2)
 #define CMN_TXPUCAL_OVRD		(0xe1 << 2)
+#define CMN_TXPDCAL_CTRL		(0xf0 << 2)
 #define CMN_TXPDCAL_OVRD		(0xf1 << 2)
+
+/* For CMN_TXPUCAL_CTRL, CMN_TXPDCAL_CTRL */
+#define CMN_TXPXCAL_START		BIT(15)
+#define CMN_TXPXCAL_DONE		BIT(14)
+#define CMN_TXPXCAL_NO_RESPONSE		BIT(13)
+#define CMN_TXPXCAL_CURRENT_RESPONSE	BIT(12)
+
+#define CMN_TXPU_ADJ_CTRL		(0x108 << 2)
+#define CMN_TXPD_ADJ_CTRL		(0x10c << 2)
+
+/*
+ * For CMN_TXPUCAL_CTRL, CMN_TXPDCAL_CTRL,
+ *     CMN_TXPU_ADJ_CTRL, CMN_TXPDCAL_CTRL
+ *
+ * NOTE: some of these registers are documented to be 2's complement
+ * signed numbers, but then documented to be always positive.  Weird.
+ * In such a case, using CMN_CALIB_CODE_POS() avoids the unnecessary
+ * sign extension.
+ */
+#define CMN_CALIB_CODE_WIDTH	7
+#define CMN_CALIB_CODE_OFFSET	0
+#define CMN_CALIB_CODE_MASK	GENMASK(CMN_CALIB_CODE_WIDTH, 0)
+#define CMN_CALIB_CODE(x)	\
+	sign_extend32((x) >> CMN_CALIB_CODE_OFFSET, CMN_CALIB_CODE_WIDTH)
+
+#define CMN_CALIB_CODE_POS_MASK	GENMASK(CMN_CALIB_CODE_WIDTH - 1, 0)
+#define CMN_CALIB_CODE_POS(x)	\
+	(((x) >> CMN_CALIB_CODE_OFFSET) & CMN_CALIB_CODE_POS_MASK)
+
 #define CMN_DIAG_PLL0_FBH_OVRD		(0x1c0 << 2)
 #define CMN_DIAG_PLL0_FBL_OVRD		(0x1c1 << 2)
 #define CMN_DIAG_PLL0_OVRD		(0x1c2 << 2)
@@ -138,6 +169,15 @@
 #define TX_TXCC_MGNFS_MULT_101(n)	((0x4055 | ((n) << 9)) << 2)
 #define TX_TXCC_MGNFS_MULT_110(n)	((0x4056 | ((n) << 9)) << 2)
 #define TX_TXCC_MGNFS_MULT_111(n)	((0x4057 | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_000(n)	((0x4058 | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_001(n)	((0x4059 | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_010(n)	((0x405a | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_011(n)	((0x405b | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_100(n)	((0x405c | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_101(n)	((0x405d | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_110(n)	((0x405e | ((n) << 9)) << 2)
+#define TX_TXCC_MGNLS_MULT_111(n)	((0x405f | ((n) << 9)) << 2)
+
 #define XCVR_DIAG_PLLDRC_CTRL(n)	((0x40e0 | ((n) << 9)) << 2)
 #define XCVR_DIAG_BIDI_CTRL(n)		((0x40e8 | ((n) << 9)) << 2)
 #define XCVR_DIAG_LANE_FCM_EN_MGN(n)	((0x40f2 | ((n) << 9)) << 2)
@@ -150,10 +190,63 @@
 #define TX_RCVDET_ST_TMR(n)		((0x4123 | ((n) << 9)) << 2)
 #define TX_DIAG_TX_DRV(n)		((0x41e1 | ((n) << 9)) << 2)
 #define TX_DIAG_BGREF_PREDRV_DELAY	(0x41e7 << 2)
+
+/* Use this for "n" in macros like "_MULT_XXX" to target the aux channel */
+#define AUX_CH_LANE			8
+
 #define TX_ANA_CTRL_REG_1		(0x5020 << 2)
+
+#define TXDA_DP_AUX_EN			BIT(15)
+#define AUXDA_SE_EN			BIT(14)
+#define TXDA_CAL_LATCH_EN		BIT(13)
+#define AUXDA_POLARITY			BIT(12)
+#define TXDA_DRV_POWER_ISOLATION_EN	BIT(11)
+#define TXDA_DRV_POWER_EN_PH_2_N	BIT(10)
+#define TXDA_DRV_POWER_EN_PH_1_N	BIT(9)
+#define TXDA_BGREF_EN			BIT(8)
+#define TXDA_DRV_LDO_EN			BIT(7)
+#define TXDA_DECAP_EN_DEL		BIT(6)
+#define TXDA_DECAP_EN			BIT(5)
+#define TXDA_UPHY_SUPPLY_EN_DEL		BIT(4)
+#define TXDA_UPHY_SUPPLY_EN		BIT(3)
+#define TXDA_LOW_LEAKAGE_EN		BIT(2)
+#define TXDA_DRV_IDLE_LOWI_EN		BIT(1)
+#define TXDA_DRV_CMN_MODE_EN		BIT(0)
+
 #define TX_ANA_CTRL_REG_2		(0x5021 << 2)
+
+#define AUXDA_DEBOUNCING_CLK		BIT(15)
+#define TXDA_LPBK_RECOVERED_CLK_EN	BIT(14)
+#define TXDA_LPBK_ISI_GEN_EN		BIT(13)
+#define TXDA_LPBK_SERIAL_EN		BIT(12)
+#define TXDA_LPBK_LINE_EN		BIT(11)
+#define TXDA_DRV_LDO_REDC_SINKIQ	BIT(10)
+#define XCVR_DECAP_EN_DEL		BIT(9)
+#define XCVR_DECAP_EN			BIT(8)
+#define TXDA_MPHY_ENABLE_HS_NT		BIT(7)
+#define TXDA_MPHY_SA_MODE		BIT(6)
+#define TXDA_DRV_LDO_RBYR_FB_EN		BIT(5)
+#define TXDA_DRV_RST_PULL_DOWN		BIT(4)
+#define TXDA_DRV_LDO_BG_FB_EN		BIT(3)
+#define TXDA_DRV_LDO_BG_REF_EN		BIT(2)
+#define TXDA_DRV_PREDRV_EN_DEL		BIT(1)
+#define TXDA_DRV_PREDRV_EN		BIT(0)
+
 #define TXDA_COEFF_CALC_CTRL		(0x5022 << 2)
+
+#define TX_HIGH_Z			BIT(6)
+#define TX_VMARGIN_OFFSET		3
+#define TX_VMARGIN_MASK			0x7
+#define LOW_POWER_SWING_EN		BIT(2)
+#define TX_FCM_DRV_MAIN_EN		BIT(1)
+#define TX_FCM_FULL_MARGIN		BIT(0)
+
 #define TX_DIG_CTRL_REG_2		(0x5024 << 2)
+
+#define TX_HIGH_Z_TM_EN			BIT(15)
+#define TX_RESCAL_CODE_OFFSET		0
+#define TX_RESCAL_CODE_MASK		0x3f
+
 #define TXDA_CYA_AUXDA_CYA		(0x5025 << 2)
 #define TX_ANA_CTRL_REG_3		(0x5026 << 2)
 #define TX_ANA_CTRL_REG_4		(0x5027 << 2)
@@ -443,47 +536,86 @@ static inline int property_enable(struct rockchip_typec_phy *tcphy,
 	return regmap_write(tcphy->grf_regs, reg->offset, val | mask);
 }
 
-static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
+static void tcphy_dp_aux_set_flip(struct rockchip_typec_phy *tcphy)
 {
-	u16 rdata, rdata2, val;
+	u16 tx_ana_ctrl_reg_1;
 
-	/* disable txda_cal_latch_en for rewrite the calibration values */
-	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
-	val = rdata & 0xdfff;
-	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+	/*
+	 * Select the polarity of the xcvr:
+	 * 1, Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
+	 * down aux_m)
+	 * 0, Normal polarity (if TYPEC, pulls up aux_m and pulls down
+	 * aux_p)
+	 */
+	tx_ana_ctrl_reg_1 = readl(tcphy->base + TX_ANA_CTRL_REG_1);
+	if (!tcphy->flip)
+		tx_ana_ctrl_reg_1 |= AUXDA_POLARITY;
+	else
+		tx_ana_ctrl_reg_1 &= ~AUXDA_POLARITY;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+}
+
+static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
+{
+	u16 val;
+	u16 tx_ana_ctrl_reg_1;
+	u16 tx_ana_ctrl_reg_2;
+	s32 pu_calib_code, pd_calib_code;
+	s32 pu_adj, pd_adj;
+	u16 calib;
 
 	/*
-	 * read a resistor calibration code from CMN_TXPUCAL_CTRL[6:0] and
-	 * write it to TX_DIG_CTRL_REG_2[6:0], and delay 1ms to make sure it
-	 * works.
+	 * Calculate calibration code as per docs: use an average of the
+	 * pull down and pull up.  Then add in adjustments.
 	 */
-	rdata = readl(tcphy->base + TX_DIG_CTRL_REG_2);
-	rdata = rdata & 0xffc0;
+	val = readl(tcphy->base + CMN_TXPUCAL_CTRL);
+	pu_calib_code = CMN_CALIB_CODE_POS(val);
+	val = readl(tcphy->base + CMN_TXPDCAL_CTRL);
+	pd_calib_code = CMN_CALIB_CODE_POS(val);
+	val = readl(tcphy->base + CMN_TXPU_ADJ_CTRL);
+	pu_adj = CMN_CALIB_CODE(val);
+	val = readl(tcphy->base + CMN_TXPD_ADJ_CTRL);
+	pd_adj = CMN_CALIB_CODE(val);
+	calib = (pu_calib_code + pd_calib_code) / 2 + pu_adj + pd_adj;
 
-	rdata2 = readl(tcphy->base + CMN_TXPUCAL_CTRL);
-	rdata2 = rdata2 & 0x3f;
+	/* disable txda_cal_latch_en for rewrite the calibration values */
+	tx_ana_ctrl_reg_1 = readl(tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 &= ~TXDA_CAL_LATCH_EN;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
-	val = rdata | rdata2;
+	/* write the calibration, then delay 10 ms as sample in docs */
+	val = readl(tcphy->base + TX_DIG_CTRL_REG_2);
+	val &= ~(TX_RESCAL_CODE_MASK << TX_RESCAL_CODE_OFFSET);
+	val |= calib << TX_RESCAL_CODE_OFFSET;
 	writel(val, tcphy->base + TX_DIG_CTRL_REG_2);
-	usleep_range(1000, 1050);
+	usleep_range(10000, 10050);
 
 	/*
 	 * Enable signal for latch that sample and holds calibration values.
 	 * Activate this signal for 1 clock cycle to sample new calibration
 	 * values.
 	 */
-	rdata = readl(tcphy->base + TX_ANA_CTRL_REG_1);
-	val = rdata | 0x2000;
-	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= TXDA_CAL_LATCH_EN;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 	usleep_range(150, 200);
 
 	/* set TX Voltage Level and TX Deemphasis to 0 */
 	writel(0, tcphy->base + PHY_DP_TX_CTL);
+
 	/* re-enable decap */
-	writel(0x100, tcphy->base + TX_ANA_CTRL_REG_2);
-	writel(0x300, tcphy->base + TX_ANA_CTRL_REG_2);
-	writel(0x2008, tcphy->base + TX_ANA_CTRL_REG_1);
-	writel(0x2018, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_2 = XCVR_DECAP_EN;
+	writel(tx_ana_ctrl_reg_2, tcphy->base + TX_ANA_CTRL_REG_2);
+	udelay(1);
+	tx_ana_ctrl_reg_2 |= XCVR_DECAP_EN_DEL;
+	writel(tx_ana_ctrl_reg_2, tcphy->base + TX_ANA_CTRL_REG_2);
+
+	writel(0, tcphy->base + TX_ANA_CTRL_REG_3);
+
+	tx_ana_ctrl_reg_1 |= TXDA_UPHY_SUPPLY_EN;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+	udelay(1);
+	tx_ana_ctrl_reg_1 |= TXDA_UPHY_SUPPLY_EN_DEL;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
 
@@ -494,43 +626,66 @@ static void tcphy_dp_aux_calibration(struct rockchip_typec_phy *tcphy)
 	writel(0x1001, tcphy->base + TX_ANA_CTRL_REG_4);
 
 	/* re-enables Bandgap reference for LDO */
-	writel(0x2098, tcphy->base + TX_ANA_CTRL_REG_1);
-	writel(0x2198, tcphy->base + TX_ANA_CTRL_REG_1);
+	tx_ana_ctrl_reg_1 |= TXDA_DRV_LDO_EN;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+	udelay(5);
+	tx_ana_ctrl_reg_1 |= TXDA_BGREF_EN;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	/*
 	 * re-enables the transmitter pre-driver, driver data selection MUX,
 	 * and receiver detect circuits.
 	 */
-	writel(0x301, tcphy->base + TX_ANA_CTRL_REG_2);
-	writel(0x303, tcphy->base + TX_ANA_CTRL_REG_2);
+	tx_ana_ctrl_reg_2 |= TXDA_DRV_PREDRV_EN;
+	writel(tx_ana_ctrl_reg_2, tcphy->base + TX_ANA_CTRL_REG_2);
+	udelay(1);
+	tx_ana_ctrl_reg_2 |= TXDA_DRV_PREDRV_EN_DEL;
+	writel(tx_ana_ctrl_reg_2, tcphy->base + TX_ANA_CTRL_REG_2);
 
 	/*
-	 * BIT 12: Controls auxda_polarity, which selects the polarity of the
-	 * xcvr:
-	 * 1, Reverses the polarity (If TYPEC, Pulls ups aux_p and pull
-	 * down aux_m)
-	 * 0, Normal polarity (if TYPE_C, pulls up aux_m and pulls down
-	 * aux_p)
+	 * Do all the undocumented magic:
+	 * - Turn on TXDA_DP_AUX_EN, whatever that is, even though sample
+	 *   never shows this going on.
+	 * - Turn on TXDA_DECAP_EN (and TXDA_DECAP_EN_DEL) even though
+	 *   docs say for aux it's always 0.
+	 * - Turn off the LDO and BGREF, which we just spent time turning
+	 *   on above (???).
+	 *
+	 * Without this magic, things seem worse.
 	 */
-	val = 0xa078;
-	if (!tcphy->flip)
-		val |= BIT(12);
-	writel(val, tcphy->base + TX_ANA_CTRL_REG_1);
-
-	writel(0, tcphy->base + TX_ANA_CTRL_REG_3);
-	writel(0, tcphy->base + TX_ANA_CTRL_REG_4);
-	writel(0, tcphy->base + TX_ANA_CTRL_REG_5);
+	tx_ana_ctrl_reg_1 |= TXDA_DP_AUX_EN;
+	tx_ana_ctrl_reg_1 |= TXDA_DECAP_EN;
+	tx_ana_ctrl_reg_1 &= ~TXDA_DRV_LDO_EN;
+	tx_ana_ctrl_reg_1 &= ~TXDA_BGREF_EN;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
+	udelay(1);
+	tx_ana_ctrl_reg_1 |= TXDA_DECAP_EN_DEL;
+	writel(tx_ana_ctrl_reg_1, tcphy->base + TX_ANA_CTRL_REG_1);
 
 	/*
-	 * Controls low_power_swing_en, set the voltage swing of the driver
-	 * to 400mv. The values	below are peak to peak (differential) values.
+	 * Undo the work we did to set the LDO voltage.
+	 * This doesn't seem to help nor hurt, but it kinda goes with the
+	 * undocumented magic above.
 	 */
-	writel(4, tcphy->base + TXDA_COEFF_CALC_CTRL);
+	writel(0, tcphy->base + TX_ANA_CTRL_REG_4);
+
+	/* Don't set voltage swing to 400 mV peak to peak (differential) */
+	writel(0, tcphy->base + TXDA_COEFF_CALC_CTRL);
+
+	/* Init TXDA_CYA_AUXDA_CYA for unknown magic reasons */
 	writel(0, tcphy->base + TXDA_CYA_AUXDA_CYA);
 
-	/* Controls tx_high_z_tm_en */
+	/*
+	 * More undocumented magic, presumably the goal of which is to
+	 * make the "auxda_source_aux_oen" be ignored and instead to decide
+	 * about "high impedance state" based on what software puts in the
+	 * register TXDA_COEFF_CALC_CTRL (see TX_HIGH_Z).  Since we only
+	 * program that register once and we don't set the bit TX_HIGH_Z,
+	 * presumably the goal here is that we should never put the analog
+	 * driver in high impedance state.
+	 */
 	val = readl(tcphy->base + TX_DIG_CTRL_REG_2);
-	val |= BIT(15);
+	val |= TX_HIGH_Z_TM_EN;
 	writel(val, tcphy->base + TX_DIG_CTRL_REG_2);
 }
 
@@ -555,6 +710,7 @@ static int tcphy_phy_init(struct rockchip_typec_phy *tcphy, u8 mode)
 	reset_control_deassert(tcphy->tcphy_rst);
 
 	property_enable(tcphy, &cfg->typec_conn_dir, tcphy->flip);
+	tcphy_dp_aux_set_flip(tcphy);
 
 	tcphy_cfg_24m(tcphy);
 
@@ -685,8 +841,11 @@ static int rockchip_usb3_phy_power_on(struct phy *phy)
 	if (tcphy->mode == new_mode)
 		goto unlock_ret;
 
-	if (tcphy->mode == MODE_DISCONNECT)
-		tcphy_phy_init(tcphy, new_mode);
+	if (tcphy->mode == MODE_DISCONNECT) {
+		ret = tcphy_phy_init(tcphy, new_mode);
+		if (ret)
+			goto unlock_ret;
+	}
 
 	/* wait TCPHY for pipe ready */
 	for (timeout = 0; timeout < 100; timeout++) {
@@ -760,10 +919,12 @@ static int rockchip_dp_phy_power_on(struct phy *phy)
 	 */
 	if (new_mode == MODE_DFP_DP && tcphy->mode != MODE_DISCONNECT) {
 		tcphy_phy_deinit(tcphy);
-		tcphy_phy_init(tcphy, new_mode);
+		ret = tcphy_phy_init(tcphy, new_mode);
 	} else if (tcphy->mode == MODE_DISCONNECT) {
-		tcphy_phy_init(tcphy, new_mode);
+		ret = tcphy_phy_init(tcphy, new_mode);
 	}
+	if (ret)
+		goto unlock_ret;
 
 	ret = readx_poll_timeout(readl, tcphy->base + DP_MODE_CTL,
 				 val, val & DP_MODE_A2, 1000,
diff --git a/drivers/phy/samsung/Makefile b/drivers/phy/samsung/Makefile
index 20d7f2424772..db9b1aa0de6e 100644
--- a/drivers/phy/samsung/Makefile
+++ b/drivers/phy/samsung/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO)	+= phy-exynos-dp-video.o
 obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO)	+= phy-exynos-mipi-video.o
 obj-$(CONFIG_PHY_EXYNOS_PCIE)		+= phy-exynos-pcie.o
diff --git a/drivers/phy/tegra/xusb.c b/drivers/phy/tegra/xusb.c
index 3cbcb2537657..4307bf0013e1 100644
--- a/drivers/phy/tegra/xusb.c
+++ b/drivers/phy/tegra/xusb.c
@@ -454,6 +454,8 @@ tegra_xusb_find_port_node(struct tegra_xusb_padctl *padctl, const char *type,
 		char *name;
 
 		name = kasprintf(GFP_KERNEL, "%s-%u", type, index);
+		if (!name)
+			return ERR_PTR(-ENOMEM);
 		np = of_find_node_by_name(np, name);
 		kfree(name);
 	}
diff --git a/drivers/phy/ti/Makefile b/drivers/phy/ti/Makefile
index 0cc3a1a557a3..9f361756eaf2 100644
--- a/drivers/phy/ti/Makefile
+++ b/drivers/phy/ti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PHY_DA8XX_USB)		+= phy-da8xx-usb.o
 obj-$(CONFIG_PHY_DM816X_USB)		+= phy-dm816x-usb.o
 obj-$(CONFIG_OMAP_CONTROL_PHY)		+= phy-omap-control.o
diff --git a/drivers/phy/ti/phy-ti-pipe3.c b/drivers/phy/ti/phy-ti-pipe3.c
index 0e564f32749f..68ce4a082b9b 100644
--- a/drivers/phy/ti/phy-ti-pipe3.c
+++ b/drivers/phy/ti/phy-ti-pipe3.c
@@ -68,6 +68,40 @@
 #define PCIE_PCS_MASK			0xFF0000
 #define PCIE_PCS_DELAY_COUNT_SHIFT	0x10
 
+#define PCIEPHYRX_ANA_PROGRAMMABILITY	0x0000000C
+#define INTERFACE_MASK			GENMASK(31, 27)
+#define INTERFACE_SHIFT			27
+#define LOSD_MASK			GENMASK(17, 14)
+#define LOSD_SHIFT			14
+#define MEM_PLLDIV			GENMASK(6, 5)
+
+#define PCIEPHYRX_TRIM			0x0000001C
+#define MEM_DLL_TRIM_SEL		GENMASK(31, 30)
+#define MEM_DLL_TRIM_SHIFT		30
+
+#define PCIEPHYRX_DLL			0x00000024
+#define MEM_DLL_PHINT_RATE		GENMASK(31, 30)
+
+#define PCIEPHYRX_DIGITAL_MODES		0x00000028
+#define MEM_CDR_FASTLOCK		BIT(23)
+#define MEM_CDR_LBW			GENMASK(22, 21)
+#define MEM_CDR_STEPCNT			GENMASK(20, 19)
+#define MEM_CDR_STL_MASK		GENMASK(18, 16)
+#define MEM_CDR_STL_SHIFT		16
+#define MEM_CDR_THR_MASK		GENMASK(15, 13)
+#define MEM_CDR_THR_SHIFT		13
+#define MEM_CDR_THR_MODE		BIT(12)
+#define MEM_CDR_CDR_2NDO_SDM_MODE	BIT(11)
+#define MEM_OVRD_HS_RATE		BIT(26)
+
+#define PCIEPHYRX_EQUALIZER		0x00000038
+#define MEM_EQLEV			GENMASK(31, 16)
+#define MEM_EQFTC			GENMASK(15, 11)
+#define MEM_EQCTL			GENMASK(10, 7)
+#define MEM_EQCTL_SHIFT			7
+#define MEM_OVRD_EQLEV			BIT(2)
+#define MEM_OVRD_EQFTC			BIT(1)
+
 /*
  * This is an Empirical value that works, need to confirm the actual
  * value required for the PIPE3PHY_PLL_CONFIGURATION2.PLL_IDLE status
@@ -91,6 +125,8 @@ struct pipe3_dpll_map {
 
 struct ti_pipe3 {
 	void __iomem		*pll_ctrl_base;
+	void __iomem		*phy_rx;
+	void __iomem		*phy_tx;
 	struct device		*dev;
 	struct device		*control_dev;
 	struct clk		*wkupclk;
@@ -261,6 +297,37 @@ static int ti_pipe3_dpll_program(struct ti_pipe3 *phy)
 	return ti_pipe3_dpll_wait_lock(phy);
 }
 
+static void ti_pipe3_calibrate(struct ti_pipe3 *phy)
+{
+	u32 val;
+
+	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_ANA_PROGRAMMABILITY);
+	val &= ~(INTERFACE_MASK | LOSD_MASK | MEM_PLLDIV);
+	val = (0x1 << INTERFACE_SHIFT | 0xA << LOSD_SHIFT);
+	ti_pipe3_writel(phy->phy_rx, PCIEPHYRX_ANA_PROGRAMMABILITY, val);
+
+	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_DIGITAL_MODES);
+	val &= ~(MEM_CDR_STEPCNT | MEM_CDR_STL_MASK | MEM_CDR_THR_MASK |
+		 MEM_CDR_CDR_2NDO_SDM_MODE | MEM_OVRD_HS_RATE);
+	val |= (MEM_CDR_FASTLOCK | MEM_CDR_LBW | 0x3 << MEM_CDR_STL_SHIFT |
+		0x1 << MEM_CDR_THR_SHIFT | MEM_CDR_THR_MODE);
+	ti_pipe3_writel(phy->phy_rx, PCIEPHYRX_DIGITAL_MODES, val);
+
+	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_TRIM);
+	val &= ~MEM_DLL_TRIM_SEL;
+	val |= 0x2 << MEM_DLL_TRIM_SHIFT;
+	ti_pipe3_writel(phy->phy_rx, PCIEPHYRX_TRIM, val);
+
+	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_DLL);
+	val |= MEM_DLL_PHINT_RATE;
+	ti_pipe3_writel(phy->phy_rx, PCIEPHYRX_DLL, val);
+
+	val = ti_pipe3_readl(phy->phy_rx, PCIEPHYRX_EQUALIZER);
+	val &= ~(MEM_EQLEV | MEM_EQCTL | MEM_OVRD_EQLEV | MEM_OVRD_EQFTC);
+	val |= MEM_EQFTC | 0x1 << MEM_EQCTL_SHIFT;
+	ti_pipe3_writel(phy->phy_rx, PCIEPHYRX_EQUALIZER, val);
+}
+
 static int ti_pipe3_init(struct phy *x)
 {
 	struct ti_pipe3 *phy = phy_get_drvdata(x);
@@ -282,7 +349,12 @@ static int ti_pipe3_init(struct phy *x)
 		val = 0x96 << OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT;
 		ret = regmap_update_bits(phy->pcs_syscon, phy->pcie_pcs_reg,
 					 PCIE_PCS_MASK, val);
-		return ret;
+		if (ret)
+			return ret;
+
+		ti_pipe3_calibrate(phy);
+
+		return 0;
 	}
 
 	/* Bring it out of IDLE if it is IDLE */
@@ -513,6 +585,29 @@ static int ti_pipe3_get_sysctrl(struct ti_pipe3 *phy)
 	return 0;
 }
 
+static int ti_pipe3_get_tx_rx_base(struct ti_pipe3 *phy)
+{
+	struct resource *res;
+	struct device *dev = phy->dev;
+	struct device_node *node = dev->of_node;
+	struct platform_device *pdev = to_platform_device(dev);
+
+	if (!of_device_is_compatible(node, "ti,phy-pipe3-pcie"))
+		return 0;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "phy_rx");
+	phy->phy_rx = devm_ioremap_resource(dev, res);
+	if (IS_ERR(phy->phy_rx))
+		return PTR_ERR(phy->phy_rx);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+					   "phy_tx");
+	phy->phy_tx = devm_ioremap_resource(dev, res);
+
+	return PTR_ERR_OR_ZERO(phy->phy_tx);
+}
+
 static int ti_pipe3_get_pll_base(struct ti_pipe3 *phy)
 {
 	struct resource *res;
@@ -559,6 +654,10 @@ static int ti_pipe3_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
+	ret = ti_pipe3_get_tx_rx_base(phy);
+	if (ret)
+		return ret;
+
 	ret = ti_pipe3_get_sysctrl(phy);
 	if (ret)
 		return ret;
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 1778cf4f81c7..82cd8b08d71f 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -100,6 +100,7 @@ config PINCTRL_AMD
 	tristate "AMD GPIO pin control"
 	depends on GPIOLIB
 	select GPIOLIB_IRQCHIP
+	select PINMUX
 	select PINCONF
 	select GENERIC_PINCONF
 	help
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index c16e27900dbb..d0d4844f8022 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # generic pinmux support
 
 subdir-ccflags-$(CONFIG_DEBUG_PINCTRL)	+= -DDEBUG
diff --git a/drivers/pinctrl/bcm/Makefile b/drivers/pinctrl/bcm/Makefile
index 2a65111f3c70..80ceb9dae944 100644
--- a/drivers/pinctrl/bcm/Makefile
+++ b/drivers/pinctrl/bcm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Broadcom pinctrl support
 
 obj-$(CONFIG_PINCTRL_BCM281XX)		+= pinctrl-bcm281xx.o
diff --git a/drivers/pinctrl/bcm/pinctrl-bcm2835.c b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
index 0944310225db..ff782445dfb7 100644
--- a/drivers/pinctrl/bcm/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/bcm/pinctrl-bcm2835.c
@@ -373,16 +373,12 @@ static void bcm2835_gpio_irq_handle_bank(struct bcm2835_pinctrl *pc,
 	unsigned long events;
 	unsigned offset;
 	unsigned gpio;
-	unsigned int type;
 
 	events = bcm2835_gpio_rd(pc, GPEDS0 + bank * 4);
 	events &= mask;
 	events &= pc->enabled_irq_map[bank];
 	for_each_set_bit(offset, &events, 32) {
 		gpio = (32 * bank) + offset;
-		/* FIXME: no clue why the code looks up the type here */
-		type = pc->irq_type[gpio];
-
 		generic_handle_irq(irq_linear_revmap(pc->gpio_chip.irqdomain,
 						     gpio));
 	}
diff --git a/drivers/pinctrl/freescale/Makefile b/drivers/pinctrl/freescale/Makefile
index 525a5ff5dcb4..19bb9a55a567 100644
--- a/drivers/pinctrl/freescale/Makefile
+++ b/drivers/pinctrl/freescale/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Freescale pin control drivers
 obj-$(CONFIG_PINCTRL_IMX)	+= pinctrl-imx.o
 obj-$(CONFIG_PINCTRL_IMX1_CORE)	+= pinctrl-imx1-core.o
diff --git a/drivers/pinctrl/intel/Makefile b/drivers/pinctrl/intel/Makefile
index c12874da5992..624d367caa09 100644
--- a/drivers/pinctrl/intel/Makefile
+++ b/drivers/pinctrl/intel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Intel pin control drivers
 
 obj-$(CONFIG_PINCTRL_BAYTRAIL)		+= pinctrl-baytrail.o
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index 04e929fd0ffe..fadbca907c7c 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -1577,6 +1577,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
 	struct gpio_chip *chip = &pctrl->chip;
 	bool need_valid_mask = !dmi_check_system(chv_no_valid_mask);
 	int ret, i, offset;
+	int irq_base;
 
 	*chip = chv_gpio_chip;
 
@@ -1622,7 +1623,18 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
 	/* Clear all interrupts */
 	chv_writel(0xffff, pctrl->regs + CHV_INTSTAT);
 
-	ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, 0,
+	if (!need_valid_mask) {
+		irq_base = devm_irq_alloc_descs(pctrl->dev, -1, 0,
+						chip->ngpio, NUMA_NO_NODE);
+		if (irq_base < 0) {
+			dev_err(pctrl->dev, "Failed to allocate IRQ numbers\n");
+			return irq_base;
+		}
+	} else {
+		irq_base = 0;
+	}
+
+	ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, irq_base,
 				   handle_bad_irq, IRQ_TYPE_NONE);
 	if (ret) {
 		dev_err(pctrl->dev, "failed to add IRQ chip\n");
diff --git a/drivers/pinctrl/mediatek/Makefile b/drivers/pinctrl/mediatek/Makefile
index e59c613d4ddd..10d90140a38a 100644
--- a/drivers/pinctrl/mediatek/Makefile
+++ b/drivers/pinctrl/mediatek/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Core
 obj-y				+= pinctrl-mtk-common.o
 
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-mt6397.h b/drivers/pinctrl/mediatek/pinctrl-mtk-mt6397.h
index 4eb98ddb40a4..17df4cfbde4e 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-mt6397.h
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-mt6397.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PINCTRL_MTK_MT6397_H
 #define __PINCTRL_MTK_MT6397_H
 
diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-mt8127.h b/drivers/pinctrl/mediatek/pinctrl-mtk-mt8127.h
index 212559c147f8..850483d7d9be 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-mt8127.h
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-mt8127.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PINCTRL_MTK_MT8127_H
 #define __PINCTRL_MTK_MT8127_H
 
diff --git a/drivers/pinctrl/mvebu/Makefile b/drivers/pinctrl/mvebu/Makefile
index 5b03fd55e28d..cd082dca4482 100644
--- a/drivers/pinctrl/mvebu/Makefile
+++ b/drivers/pinctrl/mvebu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PINCTRL_MVEBU)	+= pinctrl-mvebu.o
 obj-$(CONFIG_PINCTRL_DOVE)	+= pinctrl-dove.o
 obj-$(CONFIG_PINCTRL_KIRKWOOD)	+= pinctrl-kirkwood.o
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index b8b6ab072cd0..71b944748304 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -550,9 +550,9 @@ static int armada_37xx_irq_set_wake(struct irq_data *d, unsigned int on)
 	spin_lock_irqsave(&info->irq_lock, flags);
 	val = readl(info->base + reg);
 	if (on)
-		val |= d->mask;
+		val |= (BIT(d->hwirq % GPIO_PER_REG));
 	else
-		val &= ~d->mask;
+		val &= ~(BIT(d->hwirq % GPIO_PER_REG));
 	writel(val, info->base + reg);
 	spin_unlock_irqrestore(&info->irq_lock, flags);
 
@@ -571,10 +571,10 @@ static int armada_37xx_irq_set_type(struct irq_data *d, unsigned int type)
 	val = readl(info->base + reg);
 	switch (type) {
 	case IRQ_TYPE_EDGE_RISING:
-		val &= ~d->mask;
+		val &= ~(BIT(d->hwirq % GPIO_PER_REG));
 		break;
 	case IRQ_TYPE_EDGE_FALLING:
-		val |= d->mask;
+		val |= (BIT(d->hwirq % GPIO_PER_REG));
 		break;
 	default:
 		spin_unlock_irqrestore(&info->irq_lock, flags);
@@ -624,11 +624,27 @@ static void armada_37xx_irq_handler(struct irq_desc *desc)
 	chained_irq_exit(chip, desc);
 }
 
+static unsigned int armada_37xx_irq_startup(struct irq_data *d)
+{
+	struct gpio_chip *chip = irq_data_get_irq_chip_data(d);
+	int irq = d->hwirq - chip->irq_base;
+	/*
+	 * The mask field is a "precomputed bitmask for accessing the
+	 * chip registers" which was introduced for the generic
+	 * irqchip framework. As we don't use this framework, we can
+	 * reuse this field for our own usage.
+	 */
+	d->mask = BIT(irq % GPIO_PER_REG);
+
+	armada_37xx_irq_unmask(d);
+
+	return 0;
+}
+
 static int armada_37xx_irqchip_register(struct platform_device *pdev,
 					struct armada_37xx_pinctrl *info)
 {
 	struct device_node *np = info->dev->of_node;
-	int nrirqs = info->data->nr_pins;
 	struct gpio_chip *gc = &info->gpio_chip;
 	struct irq_chip *irqchip = &info->irq_chip;
 	struct resource res;
@@ -666,8 +682,8 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
 	irqchip->irq_unmask = armada_37xx_irq_unmask;
 	irqchip->irq_set_wake = armada_37xx_irq_set_wake;
 	irqchip->irq_set_type = armada_37xx_irq_set_type;
+	irqchip->irq_startup = armada_37xx_irq_startup;
 	irqchip->name = info->data->name;
-
 	ret = gpiochip_irqchip_add(gc, irqchip, 0,
 				   handle_edge_irq, IRQ_TYPE_NONE);
 	if (ret) {
@@ -680,19 +696,6 @@ static int armada_37xx_irqchip_register(struct platform_device *pdev,
 	 * controller. But we do not take advantage of this and use
 	 * the chained irq with all of them.
 	 */
-	for (i = 0; i < nrirqs; i++) {
-		struct irq_data *d = irq_get_irq_data(gc->irq_base + i);
-
-		/*
-		 * The mask field is a "precomputed bitmask for
-		 * accessing the chip registers" which was introduced
-		 * for the generic irqchip framework. As we don't use
-		 * this framework, we can reuse this field for our own
-		 * usage.
-		 */
-		d->mask = BIT(i % GPIO_PER_REG);
-	}
-
 	for (i = 0; i < nr_irq_parent; i++) {
 		int irq = irq_of_parse_and_map(np, i);
 
diff --git a/drivers/pinctrl/nomadik/Makefile b/drivers/pinctrl/nomadik/Makefile
index 30b27f18cd52..bf8b7517ee4a 100644
--- a/drivers/pinctrl/nomadik/Makefile
+++ b/drivers/pinctrl/nomadik/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Nomadik family pin control drivers
 obj-$(CONFIG_PINCTRL_ABX500)	+= pinctrl-abx500.o
 obj-$(CONFIG_PINCTRL_AB8500)	+= pinctrl-ab8500.o
diff --git a/drivers/pinctrl/nomadik/pinctrl-abx500.h b/drivers/pinctrl/nomadik/pinctrl-abx500.h
index 2beef3bfe9ca..43f9b718a8ef 100644
--- a/drivers/pinctrl/nomadik/pinctrl-abx500.h
+++ b/drivers/pinctrl/nomadik/pinctrl-abx500.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PINCTRL_PINCTRL_ABx500_H
 #define PINCTRL_PINCTRL_ABx500_H
 
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c
index af4814479eb0..726c0b5501fa 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8500.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/pinctrl/pinctrl.h>
 #include "pinctrl-nomadik.h"
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8540.c b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8540.c
index 2860eafd1b42..ae3ac7b799a6 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik-db8540.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik-db8540.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/pinctrl/pinctrl.h>
 #include "pinctrl-nomadik.h"
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c b/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
index e852048c4c04..7e814764da7d 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik-stn8815.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/pinctrl/pinctrl.h>
 #include "pinctrl-nomadik.h"
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.h b/drivers/pinctrl/nomadik/pinctrl-nomadik.h
index 30bba2a75a58..ae0bac06639f 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.h
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PINCTRL_PINCTRL_NOMADIK_H
 #define PINCTRL_PINCTRL_NOMADIK_H
 
diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c
index 38af1ec2df0c..433af328d981 100644
--- a/drivers/pinctrl/pinctrl-amd.c
+++ b/drivers/pinctrl/pinctrl-amd.c
@@ -36,6 +36,7 @@
 #include <linux/pinctrl/pinconf.h>
 #include <linux/pinctrl/pinconf-generic.h>
 
+#include "core.h"
 #include "pinctrl-utils.h"
 #include "pinctrl-amd.h"
 
@@ -533,8 +534,16 @@ static irqreturn_t amd_gpio_irq_handler(int irq, void *dev_id)
 				continue;
 			irq = irq_find_mapping(gc->irqdomain, irqnr + i);
 			generic_handle_irq(irq);
-			/* Clear interrupt */
+
+			/* Clear interrupt.
+			 * We must read the pin register again, in case the
+			 * value was changed while executing
+			 * generic_handle_irq() above.
+			 */
+			raw_spin_lock_irqsave(&gpio_dev->lock, flags);
+			regval = readl(regs + i);
 			writel(regval, regs + i);
+			raw_spin_unlock_irqrestore(&gpio_dev->lock, flags);
 			ret = IRQ_HANDLED;
 		}
 	}
@@ -725,6 +734,69 @@ static const struct pinconf_ops amd_pinconf_ops = {
 	.pin_config_group_set = amd_pinconf_group_set,
 };
 
+#ifdef CONFIG_PM_SLEEP
+static bool amd_gpio_should_save(struct amd_gpio *gpio_dev, unsigned int pin)
+{
+	const struct pin_desc *pd = pin_desc_get(gpio_dev->pctrl, pin);
+
+	if (!pd)
+		return false;
+
+	/*
+	 * Only restore the pin if it is actually in use by the kernel (or
+	 * by userspace).
+	 */
+	if (pd->mux_owner || pd->gpio_owner ||
+	    gpiochip_line_is_irq(&gpio_dev->gc, pin))
+		return true;
+
+	return false;
+}
+
+int amd_gpio_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct amd_gpio *gpio_dev = platform_get_drvdata(pdev);
+	struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+	int i;
+
+	for (i = 0; i < desc->npins; i++) {
+		int pin = desc->pins[i].number;
+
+		if (!amd_gpio_should_save(gpio_dev, pin))
+			continue;
+
+		gpio_dev->saved_regs[i] = readl(gpio_dev->base + pin*4);
+	}
+
+	return 0;
+}
+
+int amd_gpio_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct amd_gpio *gpio_dev = platform_get_drvdata(pdev);
+	struct pinctrl_desc *desc = gpio_dev->pctrl->desc;
+	int i;
+
+	for (i = 0; i < desc->npins; i++) {
+		int pin = desc->pins[i].number;
+
+		if (!amd_gpio_should_save(gpio_dev, pin))
+			continue;
+
+		writel(gpio_dev->saved_regs[i], gpio_dev->base + pin*4);
+	}
+
+	return 0;
+}
+
+static const struct dev_pm_ops amd_gpio_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(amd_gpio_suspend,
+				     amd_gpio_resume)
+};
+#endif
+
 static struct pinctrl_desc amd_pinctrl_desc = {
 	.pins	= kerncz_pins,
 	.npins = ARRAY_SIZE(kerncz_pins),
@@ -764,6 +836,14 @@ static int amd_gpio_probe(struct platform_device *pdev)
 		return irq_base;
 	}
 
+#ifdef CONFIG_PM_SLEEP
+	gpio_dev->saved_regs = devm_kcalloc(&pdev->dev, amd_pinctrl_desc.npins,
+					    sizeof(*gpio_dev->saved_regs),
+					    GFP_KERNEL);
+	if (!gpio_dev->saved_regs)
+		return -ENOMEM;
+#endif
+
 	gpio_dev->pdev = pdev;
 	gpio_dev->gc.direction_input	= amd_gpio_direction_input;
 	gpio_dev->gc.direction_output	= amd_gpio_direction_output;
@@ -853,6 +933,9 @@ static struct platform_driver amd_gpio_driver = {
 	.driver		= {
 		.name	= "amd_gpio",
 		.acpi_match_table = ACPI_PTR(amd_gpio_acpi_match),
+#ifdef CONFIG_PM_SLEEP
+		.pm	= &amd_gpio_pm_ops,
+#endif
 	},
 	.probe		= amd_gpio_probe,
 	.remove		= amd_gpio_remove,
diff --git a/drivers/pinctrl/pinctrl-amd.h b/drivers/pinctrl/pinctrl-amd.h
index 5b1cb965c767..8fa453a59da5 100644
--- a/drivers/pinctrl/pinctrl-amd.h
+++ b/drivers/pinctrl/pinctrl-amd.h
@@ -97,6 +97,7 @@ struct amd_gpio {
 	unsigned int            hwbank_num;
 	struct resource         *res;
 	struct platform_device  *pdev;
+	u32			*saved_regs;
 };
 
 /*  KERNCZ configuration*/
diff --git a/drivers/pinctrl/pinctrl-coh901.h b/drivers/pinctrl/pinctrl-coh901.h
index 87294222583e..ba2678665168 100644
--- a/drivers/pinctrl/pinctrl-coh901.h
+++ b/drivers/pinctrl/pinctrl-coh901.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 int u300_gpio_config_get(struct gpio_chip *chip,
 			 unsigned offset,
 			 unsigned long *config);
diff --git a/drivers/pinctrl/pinctrl-mcp23s08.c b/drivers/pinctrl/pinctrl-mcp23s08.c
index 3e40d4245512..9c950bbf07ba 100644
--- a/drivers/pinctrl/pinctrl-mcp23s08.c
+++ b/drivers/pinctrl/pinctrl-mcp23s08.c
@@ -407,10 +407,10 @@ static int mcp23s08_get(struct gpio_chip *chip, unsigned offset)
 	ret = mcp_read(mcp, MCP_GPIO, &status);
 	if (ret < 0)
 		status = 0;
-	else
+	else {
+		mcp->cached_gpio = status;
 		status = !!(status & (1 << offset));
-
-	mcp->cached_gpio = status;
+	}
 
 	mutex_unlock(&mcp->lock);
 	return status;
diff --git a/drivers/pinctrl/qcom/Makefile b/drivers/pinctrl/qcom/Makefile
index 06c8b2ace05f..a1db345ded1c 100644
--- a/drivers/pinctrl/qcom/Makefile
+++ b/drivers/pinctrl/qcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Qualcomm pin control drivers
 obj-$(CONFIG_PINCTRL_MSM)	+= pinctrl-msm.o
 obj-$(CONFIG_PINCTRL_APQ8064)	+= pinctrl-apq8064.o
diff --git a/drivers/pinctrl/samsung/Makefile b/drivers/pinctrl/samsung/Makefile
index 595995851ea5..df426561d067 100644
--- a/drivers/pinctrl/samsung/Makefile
+++ b/drivers/pinctrl/samsung/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Samsung pin control drivers
 
 obj-$(CONFIG_PINCTRL_SAMSUNG)	+= pinctrl-samsung.o
diff --git a/drivers/pinctrl/sh-pfc/Makefile b/drivers/pinctrl/sh-pfc/Makefile
index 1d4f05a96bd4..a7903904b64e 100644
--- a/drivers/pinctrl/sh-pfc/Makefile
+++ b/drivers/pinctrl/sh-pfc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PINCTRL_SH_PFC)	+= core.o pinctrl.o
 obj-$(CONFIG_PINCTRL_SH_PFC_GPIO)	+= gpio.o
 obj-$(CONFIG_PINCTRL_PFC_EMEV2)	+= pfc-emev2.o
diff --git a/drivers/pinctrl/sh-pfc/pfc-sh7722.c b/drivers/pinctrl/sh-pfc/pfc-sh7722.c
index 29c69133b0ef..0e733bffdb38 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh7722.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh7722.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/gpio.h>
diff --git a/drivers/pinctrl/spear/Makefile b/drivers/pinctrl/spear/Makefile
index 37b8412ac8a3..da52d17550a3 100644
--- a/drivers/pinctrl/spear/Makefile
+++ b/drivers/pinctrl/spear/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # SPEAr pinmux support
 
 obj-$(CONFIG_PINCTRL_SPEAR_PLGPIO)	+= pinctrl-plgpio.o
diff --git a/drivers/pinctrl/sprd/Kconfig b/drivers/pinctrl/sprd/Kconfig
index 6f4a7f9ac6fd..bc7f3fab22f1 100644
--- a/drivers/pinctrl/sprd/Kconfig
+++ b/drivers/pinctrl/sprd/Kconfig
@@ -4,6 +4,8 @@
 
 config PINCTRL_SPRD
 	bool "Spreadtrum pinctrl driver"
+	depends on OF
+	depends on ARCH_SPRD || COMPILE_TEST
 	select PINMUX
 	select PINCONF
 	select GENERIC_PINCONF
@@ -13,5 +15,6 @@ config PINCTRL_SPRD
 
 config PINCTRL_SPRD_SC9860
 	bool "Spreadtrum SC9860 pinctrl driver"
+	depends on PINCTRL_SPRD
 	help
 	  Say Y here to enable Spreadtrum SC9860 pinctrl driver
diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.c b/drivers/pinctrl/sprd/pinctrl-sprd.c
index 7e7b9ac7e836..63529911445c 100644
--- a/drivers/pinctrl/sprd/pinctrl-sprd.c
+++ b/drivers/pinctrl/sprd/pinctrl-sprd.c
@@ -353,13 +353,13 @@ static const struct pinctrl_ops sprd_pctrl_ops = {
 	.dt_free_map = pinctrl_utils_free_map,
 };
 
-int sprd_pmx_get_function_count(struct pinctrl_dev *pctldev)
+static int sprd_pmx_get_function_count(struct pinctrl_dev *pctldev)
 {
 	return PIN_FUNC_MAX;
 }
 
-const char *sprd_pmx_get_function_name(struct pinctrl_dev *pctldev,
-				       unsigned int selector)
+static const char *sprd_pmx_get_function_name(struct pinctrl_dev *pctldev,
+					      unsigned int selector)
 {
 	switch (selector) {
 	case PIN_FUNC_1:
@@ -375,10 +375,10 @@ const char *sprd_pmx_get_function_name(struct pinctrl_dev *pctldev,
 	}
 }
 
-int sprd_pmx_get_function_groups(struct pinctrl_dev *pctldev,
-				 unsigned int selector,
-				 const char * const **groups,
-				 unsigned int * const num_groups)
+static int sprd_pmx_get_function_groups(struct pinctrl_dev *pctldev,
+					unsigned int selector,
+					const char * const **groups,
+					unsigned int * const num_groups)
 {
 	struct sprd_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
 	struct sprd_pinctrl_soc_info *info = pctl->info;
@@ -400,7 +400,7 @@ static int sprd_pmx_set_mux(struct pinctrl_dev *pctldev,
 	unsigned long reg;
 	unsigned int val = 0;
 
-	if (group_selector > info->ngroups)
+	if (group_selector >= info->ngroups)
 		return -EINVAL;
 
 	switch (func_selector) {
@@ -734,7 +734,7 @@ static int sprd_pinconf_group_get(struct pinctrl_dev *pctldev,
 	struct sprd_pin_group *grp;
 	unsigned int pin_id;
 
-	if (selector > info->ngroups)
+	if (selector >= info->ngroups)
 		return -EINVAL;
 
 	grp = &info->groups[selector];
@@ -753,7 +753,7 @@ static int sprd_pinconf_group_set(struct pinctrl_dev *pctldev,
 	struct sprd_pin_group *grp;
 	int ret, i;
 
-	if (selector > info->ngroups)
+	if (selector >= info->ngroups)
 		return -EINVAL;
 
 	grp = &info->groups[selector];
@@ -813,7 +813,7 @@ static void sprd_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
 	const char *name;
 	int i, ret;
 
-	if (selector > info->ngroups)
+	if (selector >= info->ngroups)
 		return;
 
 	grp = &info->groups[selector];
@@ -1100,12 +1100,16 @@ int sprd_pinctrl_remove(struct platform_device *pdev)
 
 void sprd_pinctrl_shutdown(struct platform_device *pdev)
 {
-	struct pinctrl *pinctl = devm_pinctrl_get(&pdev->dev);
+	struct pinctrl *pinctl;
 	struct pinctrl_state *state;
 
+	pinctl = devm_pinctrl_get(&pdev->dev);
+	if (IS_ERR(pinctl))
+		return;
 	state = pinctrl_lookup_state(pinctl, "shutdown");
-	if (!IS_ERR(state))
-		pinctrl_select_state(pinctl, state);
+	if (IS_ERR(state))
+		return;
+	pinctrl_select_state(pinctl, state);
 }
 
 MODULE_DESCRIPTION("SPREADTRUM Pin Controller Driver");
diff --git a/drivers/pinctrl/stm32/Makefile b/drivers/pinctrl/stm32/Makefile
index 5f379f5153f1..d13ca3573486 100644
--- a/drivers/pinctrl/stm32/Makefile
+++ b/drivers/pinctrl/stm32/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Core
 obj-$(CONFIG_PINCTRL_STM32) += pinctrl-stm32.o
 
diff --git a/drivers/pinctrl/stm32/pinctrl-stm32.c b/drivers/pinctrl/stm32/pinctrl-stm32.c
index 50299ad96659..02b66588cac6 100644
--- a/drivers/pinctrl/stm32/pinctrl-stm32.c
+++ b/drivers/pinctrl/stm32/pinctrl-stm32.c
@@ -289,13 +289,14 @@ static int stm32_gpio_domain_translate(struct irq_domain *d,
 	return 0;
 }
 
-static void stm32_gpio_domain_activate(struct irq_domain *d,
-				       struct irq_data *irq_data)
+static int stm32_gpio_domain_activate(struct irq_domain *d,
+				      struct irq_data *irq_data, bool early)
 {
 	struct stm32_gpio_bank *bank = d->host_data;
 	struct stm32_pinctrl *pctl = dev_get_drvdata(bank->gpio_chip.parent);
 
 	regmap_field_write(pctl->irqmux[irq_data->hwirq], bank->bank_nr);
+	return 0;
 }
 
 static int stm32_gpio_domain_alloc(struct irq_domain *d,
diff --git a/drivers/pinctrl/sunxi/Makefile b/drivers/pinctrl/sunxi/Makefile
index dc6c9619e41c..12a752e836ef 100644
--- a/drivers/pinctrl/sunxi/Makefile
+++ b/drivers/pinctrl/sunxi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Core
 obj-y					+= pinctrl-sunxi.o
 
diff --git a/drivers/pinctrl/tegra/Makefile b/drivers/pinctrl/tegra/Makefile
index d9ea2be69cc4..bbcb043c34a2 100644
--- a/drivers/pinctrl/tegra/Makefile
+++ b/drivers/pinctrl/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PINCTRL_TEGRA)		+= pinctrl-tegra.o
 obj-$(CONFIG_PINCTRL_TEGRA20)		+= pinctrl-tegra20.o
 obj-$(CONFIG_PINCTRL_TEGRA30)		+= pinctrl-tegra30.o
diff --git a/drivers/pinctrl/uniphier/Makefile b/drivers/pinctrl/uniphier/Makefile
index d592ff77d60f..ec66c86e276e 100644
--- a/drivers/pinctrl/uniphier/Makefile
+++ b/drivers/pinctrl/uniphier/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y					+= pinctrl-uniphier-core.o
 
 obj-$(CONFIG_PINCTRL_UNIPHIER_LD4)	+= pinctrl-uniphier-ld4.o
diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier.h b/drivers/pinctrl/uniphier/pinctrl-uniphier.h
index c075ecb8e5db..0a3d2ac27503 100644
--- a/drivers/pinctrl/uniphier/pinctrl-uniphier.h
+++ b/drivers/pinctrl/uniphier/pinctrl-uniphier.h
@@ -17,7 +17,7 @@
 #define __PINCTRL_UNIPHIER_H__
 
 #include <linux/bitops.h>
-#include <linux/bug.h>
+#include <linux/build_bug.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
 
diff --git a/drivers/pinctrl/vt8500/Makefile b/drivers/pinctrl/vt8500/Makefile
index 24ec45dd0d80..c6a5c3b14e9e 100644
--- a/drivers/pinctrl/vt8500/Makefile
+++ b/drivers/pinctrl/vt8500/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # VIA/Wondermedia pinctrl support
 
 obj-$(CONFIG_PINCTRL_WMT)	+= pinctrl-wmt.o
diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
index ca2692510733..d3a6630266a0 100644
--- a/drivers/platform/Makefile
+++ b/drivers/platform/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for linux/drivers/platform
 #
diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile
index 66c345ca35fc..a077b1f0211d 100644
--- a/drivers/platform/chrome/Makefile
+++ b/drivers/platform/chrome/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_CHROMEOS_LAPTOP)		+= chromeos_laptop.o
 obj-$(CONFIG_CHROMEOS_PSTORE)		+= chromeos_pstore.o
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index e8a44a9bc916..d8599736a41a 100644
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -518,7 +518,7 @@ static struct chromeos_laptop cr48 = {
 	.callback = chromeos_laptop_dmi_matched, \
 	.driver_data = (void *)&board_
 
-static struct dmi_system_id chromeos_laptop_dmi_table[] __initdata = {
+static const struct dmi_system_id chromeos_laptop_dmi_table[] __initconst = {
 	{
 		.ident = "Samsung Series 5 550",
 		.matches = {
diff --git a/drivers/platform/chrome/chromeos_pstore.c b/drivers/platform/chrome/chromeos_pstore.c
index 308a853ac4f1..b0693fdec8c6 100644
--- a/drivers/platform/chrome/chromeos_pstore.c
+++ b/drivers/platform/chrome/chromeos_pstore.c
@@ -14,7 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/pstore_ram.h>
 
-static struct dmi_system_id chromeos_pstore_dmi_table[] __initdata = {
+static const struct dmi_system_id chromeos_pstore_dmi_table[] __initconst = {
 	{
 		/*
 		 * Today all Chromebooks/boxes ship with Google_* as version and
diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
index 2b6436d1b6a4..1baf720faf69 100644
--- a/drivers/platform/chrome/cros_ec_lpc.c
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -329,7 +329,7 @@ static const struct acpi_device_id cros_ec_lpc_acpi_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, cros_ec_lpc_acpi_device_ids);
 
-static struct dmi_system_id cros_ec_lpc_dmi_table[] __initdata = {
+static const struct dmi_system_id cros_ec_lpc_dmi_table[] __initconst = {
 	{
 		/*
 		 * Today all Chromebooks/boxes ship with Google_* as version and
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 91cec1751461..f9e3ae683bbe 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for linux/drivers/platform/x86
 # x86 Platform-Specific Drivers
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index a8e4a539e704..6bcb750e1865 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -805,7 +805,7 @@ static int dmi_check_cb_extra(const struct dmi_system_id *id)
 	return 1;
 }
 
-static struct dmi_system_id __initdata compal_dmi_table[] = {
+static const struct dmi_system_id compal_dmi_table[] __initconst = {
 	{
 		.ident = "FL90/IFL90",
 		.matches = {
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 85de30f93a9c..56a8195096a2 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -254,10 +254,12 @@ static int bl_update_status(struct backlight_device *b)
 {
 	struct acpi_device *device = bl_get_data(b);
 
-	if (b->props.power == FB_BLANK_POWERDOWN)
-		call_fext_func(fext, FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
-	else
-		call_fext_func(fext, FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
+	if (fext) {
+		if (b->props.power == FB_BLANK_POWERDOWN)
+			call_fext_func(fext, FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
+		else
+			call_fext_func(fext, FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
+	}
 
 	return set_lcd_level(device, b->props.brightness);
 }
diff --git a/drivers/platform/x86/hdaps.c b/drivers/platform/x86/hdaps.c
index 458e6c948c11..c26baf77938e 100644
--- a/drivers/platform/x86/hdaps.c
+++ b/drivers/platform/x86/hdaps.c
@@ -514,7 +514,7 @@ static int __init hdaps_dmi_match_invert(const struct dmi_system_id *id)
    "ThinkPad T42p", so the order of the entries matters.
    If your ThinkPad is not recognized, please update to latest
    BIOS. This is especially the case for some R52 ThinkPads. */
-static struct dmi_system_id __initdata hdaps_whitelist[] = {
+static const struct dmi_system_id hdaps_whitelist[] __initconst = {
 	HDAPS_DMI_MATCH_INVERT("IBM", "ThinkPad R50p", HDAPS_BOTH_AXES),
 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R50"),
 	HDAPS_DMI_MATCH_NORMAL("IBM", "ThinkPad R51"),
diff --git a/drivers/platform/x86/ibm_rtl.c b/drivers/platform/x86/ibm_rtl.c
index 610ac8391caa..18d55cee5bcd 100644
--- a/drivers/platform/x86/ibm_rtl.c
+++ b/drivers/platform/x86/ibm_rtl.c
@@ -227,7 +227,7 @@ static void rtl_teardown_sysfs(void) {
 }
 
 
-static struct dmi_system_id __initdata ibm_rtl_dmi_table[] = {
+static const struct dmi_system_id ibm_rtl_dmi_table[] __initconst = {
 	{                                                  \
 		.matches = {                               \
 			DMI_MATCH(DMI_SYS_VENDOR, "IBM"),  \
diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c
index 6aa33c4a809f..5747f63c8d9f 100644
--- a/drivers/platform/x86/intel_oaktrail.c
+++ b/drivers/platform/x86/intel_oaktrail.c
@@ -299,7 +299,7 @@ static int dmi_check_cb(const struct dmi_system_id *id)
 	return 0;
 }
 
-static struct dmi_system_id __initdata oaktrail_dmi_table[] = {
+static const struct dmi_system_id oaktrail_dmi_table[] __initconst = {
 	{
 		.ident = "OakTrail platform",
 		.matches = {
diff --git a/drivers/platform/x86/intel_pmc_ipc.c b/drivers/platform/x86/intel_pmc_ipc.c
index bb792a52248b..e03fa31446ca 100644
--- a/drivers/platform/x86/intel_pmc_ipc.c
+++ b/drivers/platform/x86/intel_pmc_ipc.c
@@ -33,6 +33,7 @@
 #include <linux/suspend.h>
 #include <linux/acpi.h>
 #include <linux/io-64-nonatomic-lo-hi.h>
+#include <linux/spinlock.h>
 
 #include <asm/intel_pmc_ipc.h>
 
@@ -131,6 +132,7 @@ static struct intel_pmc_ipc_dev {
 	/* gcr */
 	void __iomem *gcr_mem_base;
 	bool has_gcr_regs;
+	spinlock_t gcr_lock;
 
 	/* punit */
 	struct platform_device *punit_dev;
@@ -225,17 +227,17 @@ int intel_pmc_gcr_read(u32 offset, u32 *data)
 {
 	int ret;
 
-	mutex_lock(&ipclock);
+	spin_lock(&ipcdev.gcr_lock);
 
 	ret = is_gcr_valid(offset);
 	if (ret < 0) {
-		mutex_unlock(&ipclock);
+		spin_unlock(&ipcdev.gcr_lock);
 		return ret;
 	}
 
 	*data = readl(ipcdev.gcr_mem_base + offset);
 
-	mutex_unlock(&ipclock);
+	spin_unlock(&ipcdev.gcr_lock);
 
 	return 0;
 }
@@ -255,17 +257,17 @@ int intel_pmc_gcr_write(u32 offset, u32 data)
 {
 	int ret;
 
-	mutex_lock(&ipclock);
+	spin_lock(&ipcdev.gcr_lock);
 
 	ret = is_gcr_valid(offset);
 	if (ret < 0) {
-		mutex_unlock(&ipclock);
+		spin_unlock(&ipcdev.gcr_lock);
 		return ret;
 	}
 
 	writel(data, ipcdev.gcr_mem_base + offset);
 
-	mutex_unlock(&ipclock);
+	spin_unlock(&ipcdev.gcr_lock);
 
 	return 0;
 }
@@ -287,7 +289,7 @@ int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
 	u32 new_val;
 	int ret = 0;
 
-	mutex_lock(&ipclock);
+	spin_lock(&ipcdev.gcr_lock);
 
 	ret = is_gcr_valid(offset);
 	if (ret < 0)
@@ -309,7 +311,7 @@ int intel_pmc_gcr_update(u32 offset, u32 mask, u32 val)
 	}
 
 gcr_ipc_unlock:
-	mutex_unlock(&ipclock);
+	spin_unlock(&ipcdev.gcr_lock);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(intel_pmc_gcr_update);
@@ -480,52 +482,41 @@ static irqreturn_t ioc(int irq, void *dev_id)
 
 static int ipc_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
-	resource_size_t pci_resource;
+	struct intel_pmc_ipc_dev *pmc = &ipcdev;
 	int ret;
-	int len;
 
-	ipcdev.dev = &pci_dev_get(pdev)->dev;
-	ipcdev.irq_mode = IPC_TRIGGER_MODE_IRQ;
+	/* Only one PMC is supported */
+	if (pmc->dev)
+		return -EBUSY;
 
-	ret = pci_enable_device(pdev);
+	pmc->irq_mode = IPC_TRIGGER_MODE_IRQ;
+
+	spin_lock_init(&ipcdev.gcr_lock);
+
+	ret = pcim_enable_device(pdev);
 	if (ret)
 		return ret;
 
-	ret = pci_request_regions(pdev, "intel_pmc_ipc");
+	ret = pcim_iomap_regions(pdev, 1 << 0, pci_name(pdev));
 	if (ret)
 		return ret;
 
-	pci_resource = pci_resource_start(pdev, 0);
-	len = pci_resource_len(pdev, 0);
-	if (!pci_resource || !len) {
-		dev_err(&pdev->dev, "Failed to get resource\n");
-		return -ENOMEM;
-	}
+	init_completion(&pmc->cmd_complete);
 
-	init_completion(&ipcdev.cmd_complete);
+	pmc->ipc_base = pcim_iomap_table(pdev)[0];
 
-	if (request_irq(pdev->irq, ioc, 0, "intel_pmc_ipc", &ipcdev)) {
+	ret = devm_request_irq(&pdev->dev, pdev->irq, ioc, 0, "intel_pmc_ipc",
+				pmc);
+	if (ret) {
 		dev_err(&pdev->dev, "Failed to request irq\n");
-		return -EBUSY;
+		return ret;
 	}
 
-	ipcdev.ipc_base = ioremap_nocache(pci_resource, len);
-	if (!ipcdev.ipc_base) {
-		dev_err(&pdev->dev, "Failed to ioremap ipc base\n");
-		free_irq(pdev->irq, &ipcdev);
-		ret = -ENOMEM;
-	}
+	pmc->dev = &pdev->dev;
 
-	return ret;
-}
+	pci_set_drvdata(pdev, pmc);
 
-static void ipc_pci_remove(struct pci_dev *pdev)
-{
-	free_irq(pdev->irq, &ipcdev);
-	pci_release_regions(pdev);
-	pci_dev_put(pdev);
-	iounmap(ipcdev.ipc_base);
-	ipcdev.dev = NULL;
+	return 0;
 }
 
 static const struct pci_device_id ipc_pci_ids[] = {
@@ -540,7 +531,6 @@ static struct pci_driver ipc_pci_driver = {
 	.name = "intel_pmc_ipc",
 	.id_table = ipc_pci_ids,
 	.probe = ipc_pci_probe,
-	.remove = ipc_pci_remove,
 };
 
 static ssize_t intel_pmc_ipc_simple_cmd_store(struct device *dev,
@@ -850,17 +840,12 @@ static int ipc_plat_get_res(struct platform_device *pdev)
 		return -ENXIO;
 	}
 	size = PLAT_RESOURCE_IPC_SIZE + PLAT_RESOURCE_GCR_SIZE;
+	res->end = res->start + size - 1;
+
+	addr = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(addr))
+		return PTR_ERR(addr);
 
-	if (!request_mem_region(res->start, size, pdev->name)) {
-		dev_err(&pdev->dev, "Failed to request ipc resource\n");
-		return -EBUSY;
-	}
-	addr = ioremap_nocache(res->start, size);
-	if (!addr) {
-		dev_err(&pdev->dev, "I/O memory remapping failed\n");
-		release_mem_region(res->start, size);
-		return -ENOMEM;
-	}
 	ipcdev.ipc_base = addr;
 
 	ipcdev.gcr_mem_base = addr + PLAT_RESOURCE_GCR_OFFSET;
@@ -917,12 +902,12 @@ MODULE_DEVICE_TABLE(acpi, ipc_acpi_ids);
 
 static int ipc_plat_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	int ret;
 
 	ipcdev.dev = &pdev->dev;
 	ipcdev.irq_mode = IPC_TRIGGER_MODE_IRQ;
 	init_completion(&ipcdev.cmd_complete);
+	spin_lock_init(&ipcdev.gcr_lock);
 
 	ipcdev.irq = platform_get_irq(pdev, 0);
 	if (ipcdev.irq < 0) {
@@ -939,11 +924,11 @@ static int ipc_plat_probe(struct platform_device *pdev)
 	ret = ipc_create_pmc_devices();
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to create pmc devices\n");
-		goto err_device;
+		return ret;
 	}
 
-	if (request_irq(ipcdev.irq, ioc, IRQF_NO_SUSPEND,
-			"intel_pmc_ipc", &ipcdev)) {
+	if (devm_request_irq(&pdev->dev, ipcdev.irq, ioc, IRQF_NO_SUSPEND,
+			     "intel_pmc_ipc", &ipcdev)) {
 		dev_err(&pdev->dev, "Failed to request irq\n");
 		ret = -EBUSY;
 		goto err_irq;
@@ -960,40 +945,22 @@ static int ipc_plat_probe(struct platform_device *pdev)
 
 	return 0;
 err_sys:
-	free_irq(ipcdev.irq, &ipcdev);
+	devm_free_irq(&pdev->dev, ipcdev.irq, &ipcdev);
 err_irq:
 	platform_device_unregister(ipcdev.tco_dev);
 	platform_device_unregister(ipcdev.punit_dev);
 	platform_device_unregister(ipcdev.telemetry_dev);
-err_device:
-	iounmap(ipcdev.ipc_base);
-	res = platform_get_resource(pdev, IORESOURCE_MEM,
-				    PLAT_RESOURCE_IPC_INDEX);
-	if (res) {
-		release_mem_region(res->start,
-				   PLAT_RESOURCE_IPC_SIZE +
-				   PLAT_RESOURCE_GCR_SIZE);
-	}
+
 	return ret;
 }
 
 static int ipc_plat_remove(struct platform_device *pdev)
 {
-	struct resource *res;
-
 	sysfs_remove_group(&pdev->dev.kobj, &intel_ipc_group);
-	free_irq(ipcdev.irq, &ipcdev);
+	devm_free_irq(&pdev->dev, ipcdev.irq, &ipcdev);
 	platform_device_unregister(ipcdev.tco_dev);
 	platform_device_unregister(ipcdev.punit_dev);
 	platform_device_unregister(ipcdev.telemetry_dev);
-	iounmap(ipcdev.ipc_base);
-	res = platform_get_resource(pdev, IORESOURCE_MEM,
-				    PLAT_RESOURCE_IPC_INDEX);
-	if (res) {
-		release_mem_region(res->start,
-				   PLAT_RESOURCE_IPC_SIZE +
-				   PLAT_RESOURCE_GCR_SIZE);
-	}
 	ipcdev.dev = NULL;
 	return 0;
 }
diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index 8f98c211b440..4f3de2a8c4df 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -247,7 +247,7 @@ static int __init mlxplat_dmi_msn21xx_matched(const struct dmi_system_id *dmi)
 	return 1;
 };
 
-static struct dmi_system_id mlxplat_dmi_table[] __initdata = {
+static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
 	{
 		.callback = mlxplat_dmi_default_matched,
 		.matches = {
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 61b9014d2610..d5bfcc602090 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -605,7 +605,7 @@ static int dmi_check_cb(const struct dmi_system_id *dmi)
 	return 1;
 }
 
-static struct dmi_system_id __initdata msi_dmi_table[] = {
+static const struct dmi_system_id msi_dmi_table[] __initconst = {
 	{
 		.ident = "MSI S270",
 		.matches = {
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index 0c703feaeb88..d3cb26f6df73 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -1567,7 +1567,7 @@ static int __init samsung_dmi_matched(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id __initdata samsung_dmi_table[] = {
+static const struct dmi_system_id samsung_dmi_table[] __initconst = {
 	{
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR,
diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c
index e6aac725a0af..a2fb7fbc3273 100644
--- a/drivers/platform/x86/samsung-q10.c
+++ b/drivers/platform/x86/samsung-q10.c
@@ -95,7 +95,7 @@ static int __init dmi_check_callback(const struct dmi_system_id *id)
 	return 1;
 }
 
-static struct dmi_system_id __initdata samsungq10_dmi_table[] = {
+static const struct dmi_system_id samsungq10_dmi_table[] __initconst = {
 	{
 		.ident = "Samsung Q10",
 		.matches = {
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index bfae79534f44..a16cea2be9c3 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -4880,7 +4880,7 @@ static struct acpi_driver sony_pic_driver = {
 	.drv.pm = &sony_pic_pm,
 };
 
-static struct dmi_system_id __initdata sonypi_dmi_table[] = {
+static const struct dmi_system_id sonypi_dmi_table[] __initconst = {
 	{
 		.ident = "Sony Vaio",
 		.matches = {
diff --git a/drivers/platform/x86/toshiba-wmi.c b/drivers/platform/x86/toshiba-wmi.c
index 440528676170..03d7620cd6d7 100644
--- a/drivers/platform/x86/toshiba-wmi.c
+++ b/drivers/platform/x86/toshiba-wmi.c
@@ -64,7 +64,7 @@ static void toshiba_wmi_notify(u32 value, void *context)
 	kfree(response.pointer);
 }
 
-static struct dmi_system_id toshiba_wmi_dmi_table[] __initdata = {
+static const struct dmi_system_id toshiba_wmi_dmi_table[] __initconst = {
 	{
 		.ident = "Toshiba laptop",
 		.matches = {
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index bb1dcd7fbdeb..e8d058c5ef21 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -2510,7 +2510,6 @@ static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
 };
 
 static const struct iio_info toshiba_iio_accel_info = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &toshiba_iio_accel_read_raw,
 };
 
diff --git a/drivers/pnp/Makefile b/drivers/pnp/Makefile
index bfba893cb321..71d532f18219 100644
--- a/drivers/pnp/Makefile
+++ b/drivers/pnp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Plug-and-Play Support.
 #
diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 3151fd164614..cdcfa39cf167 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2008 Hewlett-Packard Development Company, L.P.
  *	Bjorn Helgaas <bjorn.helgaas@hp.com>
diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c
index 31ad9fc3f701..c2464ee08e4a 100644
--- a/drivers/pnp/card.c
+++ b/drivers/pnp/card.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * card.c - contains functions for managing groups of PnP devices
  *
diff --git a/drivers/pnp/core.c b/drivers/pnp/core.c
index b54620e53830..3bf18d718975 100644
--- a/drivers/pnp/core.c
+++ b/drivers/pnp/core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * core.c - contains all core device and protocol registration functions
  *
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 63452f20e3e9..93a30a8f88d1 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * driver.c - device id matching, driver model, etc.
  *
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index 5c5b3d47b5f6..187e4a1175b0 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * interface.c - contains everything related to the user interface
  *
diff --git a/drivers/pnp/isapnp/compat.c b/drivers/pnp/isapnp/compat.c
index 10bdcc4d4f7b..6c845b628316 100644
--- a/drivers/pnp/isapnp/compat.c
+++ b/drivers/pnp/isapnp/compat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * compat.c - A series of functions to make it easier to convert drivers that use
  *            the old isapnp APIs. If possible use the new APIs instead.
diff --git a/drivers/pnp/manager.c b/drivers/pnp/manager.c
index 7ad3295752ef..144055593ec8 100644
--- a/drivers/pnp/manager.c
+++ b/drivers/pnp/manager.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * manager.c - Resource Management, Conflict Resolution, Activation and Disabling of Devices
  *
diff --git a/drivers/pnp/pnpacpi/pnpacpi.h b/drivers/pnp/pnpacpi/pnpacpi.h
index 051ef9699777..4489cd6dbc84 100644
--- a/drivers/pnp/pnpacpi/pnpacpi.h
+++ b/drivers/pnp/pnpacpi/pnpacpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ACPI_PNP_H
 #define ACPI_PNP_H
 
diff --git a/drivers/pnp/pnpbios/bioscalls.c b/drivers/pnp/pnpbios/bioscalls.c
index ff563db025b3..ba5cfc3dbe11 100644
--- a/drivers/pnp/pnpbios/bioscalls.c
+++ b/drivers/pnp/pnpbios/bioscalls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bioscalls.c - the lowlevel layer of the PnPBIOS driver
  */
diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c
index 0ced908e7aa8..e681140b85d8 100644
--- a/drivers/pnp/pnpbios/core.c
+++ b/drivers/pnp/pnpbios/core.c
@@ -495,7 +495,7 @@ static int __init exploding_pnp_bios(const struct dmi_system_id *d)
 	return 0;
 }
 
-static struct dmi_system_id pnpbios_dmi_table[] __initdata = {
+static const struct dmi_system_id pnpbios_dmi_table[] __initconst = {
 	{			/* PnPBIOS GPF on boot */
 	 .callback = exploding_pnp_bios,
 	 .ident = "Higraded P14H",
diff --git a/drivers/pnp/pnpbios/proc.c b/drivers/pnp/pnpbios/proc.c
index 5ee6b2a5f8d5..7d4aca7948dd 100644
--- a/drivers/pnp/pnpbios/proc.c
+++ b/drivers/pnp/pnpbios/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * /proc/bus/pnp interface for Plug and Play devices
  *
diff --git a/drivers/pnp/pnpbios/rsparser.c b/drivers/pnp/pnpbios/rsparser.c
index cca2f9f9f3e3..2f31b212b1a5 100644
--- a/drivers/pnp/pnpbios/rsparser.c
+++ b/drivers/pnp/pnpbios/rsparser.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * rsparser.c - parses and encodes pnpbios resource data streams
  */
diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c
index d28e3ab9479c..f054cdddfef8 100644
--- a/drivers/pnp/quirks.c
+++ b/drivers/pnp/quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  This file contains quirk handling code for PnP devices
  *  Some devices do not report all their resources, and need to have extra
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index f980ff7166e9..70d4ba95735a 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * resource.c - Contains functions for registering and analyzing resource information
  *
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
index f5beb24d036a..e4f53d31191d 100644
--- a/drivers/pnp/support.c
+++ b/drivers/pnp/support.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * support.c - standard functions for the use of pnp protocol drivers
  *
diff --git a/drivers/pnp/system.c b/drivers/pnp/system.c
index 49c1720df59a..6950503741eb 100644
--- a/drivers/pnp/system.c
+++ b/drivers/pnp/system.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * system.c - a driver for reserving pnp system resources
  *
diff --git a/drivers/power/avs/smartreflex.c b/drivers/power/avs/smartreflex.c
index 974fd684bab2..89bf4d6cb486 100644
--- a/drivers/power/avs/smartreflex.c
+++ b/drivers/power/avs/smartreflex.c
@@ -355,7 +355,7 @@ int sr_configure_errgen(struct omap_sr *sr)
 	u8 senp_shift, senn_shift;
 
 	if (!sr) {
-		pr_warn("%s: NULL omap_sr from %pF\n",
+		pr_warn("%s: NULL omap_sr from %pS\n",
 			__func__, (void *)_RET_IP_);
 		return -EINVAL;
 	}
@@ -422,7 +422,7 @@ int sr_disable_errgen(struct omap_sr *sr)
 	u32 vpboundint_en, vpboundint_st;
 
 	if (!sr) {
-		pr_warn("%s: NULL omap_sr from %pF\n",
+		pr_warn("%s: NULL omap_sr from %pS\n",
 			__func__, (void *)_RET_IP_);
 		return -EINVAL;
 	}
@@ -477,7 +477,7 @@ int sr_configure_minmax(struct omap_sr *sr)
 	u8 senp_shift, senn_shift;
 
 	if (!sr) {
-		pr_warn("%s: NULL omap_sr from %pF\n",
+		pr_warn("%s: NULL omap_sr from %pS\n",
 			__func__, (void *)_RET_IP_);
 		return -EINVAL;
 	}
@@ -562,7 +562,7 @@ int sr_enable(struct omap_sr *sr, unsigned long volt)
 	int ret;
 
 	if (!sr) {
-		pr_warn("%s: NULL omap_sr from %pF\n",
+		pr_warn("%s: NULL omap_sr from %pS\n",
 			__func__, (void *)_RET_IP_);
 		return -EINVAL;
 	}
@@ -614,7 +614,7 @@ int sr_enable(struct omap_sr *sr, unsigned long volt)
 void sr_disable(struct omap_sr *sr)
 {
 	if (!sr) {
-		pr_warn("%s: NULL omap_sr from %pF\n",
+		pr_warn("%s: NULL omap_sr from %pS\n",
 			__func__, (void *)_RET_IP_);
 		return;
 	}
diff --git a/drivers/power/reset/Makefile b/drivers/power/reset/Makefile
index 58cf5b30559f..aeb65edb17b7 100644
--- a/drivers/power/reset/Makefile
+++ b/drivers/power/reset/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_POWER_RESET_AS3722) += as3722-poweroff.o
 obj-$(CONFIG_POWER_RESET_AT91_POWEROFF) += at91-poweroff.o
 obj-$(CONFIG_POWER_RESET_AT91_RESET) += at91-reset.o
diff --git a/drivers/power/reset/gemini-poweroff.c b/drivers/power/reset/gemini-poweroff.c
index de878fd26f27..ff75af5abbc5 100644
--- a/drivers/power/reset/gemini-poweroff.c
+++ b/drivers/power/reset/gemini-poweroff.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Gemini power management controller
  * Copyright (C) 2017 Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/power/reset/piix4-poweroff.c b/drivers/power/reset/piix4-poweroff.c
index bacfc95783f0..20ce3ff5e039 100644
--- a/drivers/power/reset/piix4-poweroff.c
+++ b/drivers/power/reset/piix4-poweroff.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (C) 2016 Imagination Technologies
- * Author: Paul Burton <paul.burton@imgtec.com>
+ * Author: Paul Burton <paul.burton@mips.com>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
@@ -109,5 +109,5 @@ static struct pci_driver piix4_poweroff_driver = {
 };
 
 module_pci_driver(piix4_poweroff_driver);
-MODULE_AUTHOR("Paul Burton <paul.burton@imgtec.com>");
+MODULE_AUTHOR("Paul Burton <paul.burton@mips.com>");
 MODULE_LICENSE("GPL");
diff --git a/drivers/power/supply/Makefile b/drivers/power/supply/Makefile
index 621a19058fec..aae4e4a8bbb3 100644
--- a/drivers/power/supply/Makefile
+++ b/drivers/power/supply/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
 
 power_supply-y				:= power_supply_core.o
diff --git a/drivers/power/supply/ab8500_bmdata.c b/drivers/power/supply/ab8500_bmdata.c
index 8c49586015d0..4a7ed50d1dc5 100644
--- a/drivers/power/supply/ab8500_bmdata.c
+++ b/drivers/power/supply/ab8500_bmdata.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/power_supply.h>
 #include <linux/of.h>
diff --git a/drivers/power/supply/qcom_smbb.c b/drivers/power/supply/qcom_smbb.c
index f6a0d245731d..11de691b9a71 100644
--- a/drivers/power/supply/qcom_smbb.c
+++ b/drivers/power/supply/qcom_smbb.c
@@ -34,7 +34,7 @@
 #include <linux/power_supply.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/regulator/driver.h>
 
 #define SMBB_CHG_VMAX		0x040
diff --git a/drivers/ptp/Makefile b/drivers/ptp/Makefile
index d1f2fb19c980..fd28207f5379 100644
--- a/drivers/ptp/Makefile
+++ b/drivers/ptp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for PTP 1588 clock support.
 #
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index ebefba5f528b..0258a745f30c 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PWM)		+= core.o
 obj-$(CONFIG_PWM_SYSFS)		+= sysfs.o
 obj-$(CONFIG_PWM_AB8500)	+= pwm-ab8500.o
diff --git a/drivers/rapidio/Makefile b/drivers/rapidio/Makefile
index 74dcea45ad49..a34b0254ba38 100644
--- a/drivers/rapidio/Makefile
+++ b/drivers/rapidio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for RapidIO interconnect services
 #
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 315a4be8dc1e..9a68914100ad 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -51,6 +51,8 @@ module_param(mbox_sel, byte, S_IRUGO);
 MODULE_PARM_DESC(mbox_sel,
 		 "RIO Messaging MBOX Selection Mask (default: 0x0f = all)");
 
+static DEFINE_SPINLOCK(tsi721_maint_lock);
+
 static void tsi721_omsg_handler(struct tsi721_device *priv, int ch);
 static void tsi721_imsg_handler(struct tsi721_device *priv, int ch);
 
@@ -124,12 +126,15 @@ static int tsi721_maint_dma(struct tsi721_device *priv, u32 sys_size,
 	void __iomem *regs = priv->regs + TSI721_DMAC_BASE(priv->mdma.ch_id);
 	struct tsi721_dma_desc *bd_ptr;
 	u32 rd_count, swr_ptr, ch_stat;
+	unsigned long flags;
 	int i, err = 0;
 	u32 op = do_wr ? MAINT_WR : MAINT_RD;
 
 	if (offset > (RIO_MAINT_SPACE_SZ - len) || (len != sizeof(u32)))
 		return -EINVAL;
 
+	spin_lock_irqsave(&tsi721_maint_lock, flags);
+
 	bd_ptr = priv->mdma.bd_base;
 
 	rd_count = ioread32(regs + TSI721_DMAC_DRDCNT);
@@ -197,7 +202,9 @@ static int tsi721_maint_dma(struct tsi721_device *priv, u32 sys_size,
 	 */
 	swr_ptr = ioread32(regs + TSI721_DMAC_DSWP);
 	iowrite32(swr_ptr, regs + TSI721_DMAC_DSRP);
+
 err_out:
+	spin_unlock_irqrestore(&tsi721_maint_lock, flags);
 
 	return err;
 }
diff --git a/drivers/rapidio/rio-access.c b/drivers/rapidio/rio-access.c
index a3824baca2e5..3ee9af83b638 100644
--- a/drivers/rapidio/rio-access.c
+++ b/drivers/rapidio/rio-access.c
@@ -14,16 +14,8 @@
 #include <linux/module.h>
 
 /*
- * These interrupt-safe spinlocks protect all accesses to RIO
- * configuration space and doorbell access.
- */
-static DEFINE_SPINLOCK(rio_config_lock);
-static DEFINE_SPINLOCK(rio_doorbell_lock);
-
-/*
  *  Wrappers for all RIO configuration access functions.  They just check
- *  alignment, do locking and call the low-level functions pointed to
- *  by rio_mport->ops.
+ *  alignment and call the low-level functions pointed to by rio_mport->ops.
  */
 
 #define RIO_8_BAD 0
@@ -44,13 +36,10 @@ int __rio_local_read_config_##size \
 	(struct rio_mport *mport, u32 offset, type *value)		\
 {									\
 	int res;							\
-	unsigned long flags;						\
 	u32 data = 0;							\
 	if (RIO_##size##_BAD) return RIO_BAD_SIZE;			\
-	spin_lock_irqsave(&rio_config_lock, flags);			\
 	res = mport->ops->lcread(mport, mport->id, offset, len, &data);	\
 	*value = (type)data;						\
-	spin_unlock_irqrestore(&rio_config_lock, flags);		\
 	return res;							\
 }
 
@@ -67,13 +56,8 @@ int __rio_local_read_config_##size \
 int __rio_local_write_config_##size \
 	(struct rio_mport *mport, u32 offset, type value)		\
 {									\
-	int res;							\
-	unsigned long flags;						\
 	if (RIO_##size##_BAD) return RIO_BAD_SIZE;			\
-	spin_lock_irqsave(&rio_config_lock, flags);			\
-	res = mport->ops->lcwrite(mport, mport->id, offset, len, value);\
-	spin_unlock_irqrestore(&rio_config_lock, flags);		\
-	return res;							\
+	return mport->ops->lcwrite(mport, mport->id, offset, len, value);\
 }
 
 RIO_LOP_READ(8, u8, 1)
@@ -104,13 +88,10 @@ int rio_mport_read_config_##size \
 	(struct rio_mport *mport, u16 destid, u8 hopcount, u32 offset, type *value)	\
 {									\
 	int res;							\
-	unsigned long flags;						\
 	u32 data = 0;							\
 	if (RIO_##size##_BAD) return RIO_BAD_SIZE;			\
-	spin_lock_irqsave(&rio_config_lock, flags);			\
 	res = mport->ops->cread(mport, mport->id, destid, hopcount, offset, len, &data); \
 	*value = (type)data;						\
-	spin_unlock_irqrestore(&rio_config_lock, flags);		\
 	return res;							\
 }
 
@@ -127,13 +108,9 @@ int rio_mport_read_config_##size \
 int rio_mport_write_config_##size \
 	(struct rio_mport *mport, u16 destid, u8 hopcount, u32 offset, type value)	\
 {									\
-	int res;							\
-	unsigned long flags;						\
 	if (RIO_##size##_BAD) return RIO_BAD_SIZE;			\
-	spin_lock_irqsave(&rio_config_lock, flags);			\
-	res = mport->ops->cwrite(mport, mport->id, destid, hopcount, offset, len, value); \
-	spin_unlock_irqrestore(&rio_config_lock, flags);		\
-	return res;							\
+	return mport->ops->cwrite(mport, mport->id, destid, hopcount,	\
+			offset, len, value);				\
 }
 
 RIO_OP_READ(8, u8, 1)
@@ -162,14 +139,7 @@ EXPORT_SYMBOL_GPL(rio_mport_write_config_32);
  */
 int rio_mport_send_doorbell(struct rio_mport *mport, u16 destid, u16 data)
 {
-	int res;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rio_doorbell_lock, flags);
-	res = mport->ops->dsend(mport, mport->id, destid, data);
-	spin_unlock_irqrestore(&rio_doorbell_lock, flags);
-
-	return res;
+	return mport->ops->dsend(mport, mport->id, destid, data);
 }
 
 EXPORT_SYMBOL_GPL(rio_mport_send_doorbell);
diff --git a/drivers/rapidio/switches/Makefile b/drivers/rapidio/switches/Makefile
index 6bdd54c4e733..69e7de31e41c 100644
--- a/drivers/rapidio/switches/Makefile
+++ b/drivers/rapidio/switches/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for RIO switches
 #
diff --git a/drivers/ras/cec.c b/drivers/ras/cec.c
index d0e5d6ee882c..ca44e6977cf2 100644
--- a/drivers/ras/cec.c
+++ b/drivers/ras/cec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/gfp.h>
 #include <linux/kernel.h>
@@ -168,11 +169,9 @@ static void cec_mod_timer(struct timer_list *t, unsigned long interval)
 	mod_timer(t, round_jiffies(iv));
 }
 
-static void cec_timer_fn(unsigned long data)
+static void cec_timer_fn(struct timer_list *unused)
 {
-	struct ce_array *ca = (struct ce_array *)data;
-
-	do_spring_cleaning(ca);
+	do_spring_cleaning(&ce_arr);
 
 	cec_mod_timer(&cec_timer, timer_interval);
 }
@@ -509,7 +508,7 @@ void __init cec_init(void)
 	if (create_debugfs_nodes())
 		return;
 
-	setup_timer(&cec_timer, cec_timer_fn, (unsigned long)&ce_arr);
+	timer_setup(&cec_timer, cec_timer_fn, 0);
 	cec_mod_timer(&cec_timer, CEC_TIMER_DEFAULT_INTERVAL);
 
 	pr_info("Correctable Errors collector initialized.\n");
@@ -523,7 +522,7 @@ int __init parse_cec_param(char *str)
 	if (*str == '=')
 		str++;
 
-	if (!strncmp(str, "cec_disable", 7))
+	if (!strcmp(str, "cec_disable"))
 		ce_arr.disabled = 1;
 	else
 		return 0;
diff --git a/drivers/ras/debugfs.h b/drivers/ras/debugfs.h
index db72e4513191..c07443b462ad 100644
--- a/drivers/ras/debugfs.h
+++ b/drivers/ras/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RAS_DEBUGFS_H__
 #define __RAS_DEBUGFS_H__
 
diff --git a/drivers/ras/ras.c b/drivers/ras/ras.c
index 5429d3795732..3f38907320dc 100644
--- a/drivers/ras/ras.c
+++ b/drivers/ras/ras.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Intel Corporation
  *
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 0fd6195601ba..96cd55f9e3c5 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -244,7 +244,7 @@ config REGULATOR_DA9210
 	  interface.
 
 config REGULATOR_DA9211
-	tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9214/DA9215 regulator"
+	tristate "Dialog Semiconductor DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 regulator"
 	depends on I2C
 	select REGMAP_I2C
 	help
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index cbb6e45c77b2..80ffc57a9ca3 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for regulator drivers.
 #
diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index f18b36dd57dd..181622b2813d 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -244,6 +244,7 @@ static const struct regulator_desc axp22x_drivevbus_regulator = {
 	.ops		= &axp20x_ops_sw,
 };
 
+/* DCDC ranges shared with AXP813 */
 static const struct regulator_linear_range axp803_dcdc234_ranges[] = {
 	REGULATOR_LINEAR_RANGE(500000, 0x0, 0x46, 10000),
 	REGULATOR_LINEAR_RANGE(1220000, 0x47, 0x4b, 20000),
@@ -426,6 +427,69 @@ static const struct regulator_desc axp809_regulators[] = {
 	AXP_DESC_SW(AXP809, SW, "sw", "swin", AXP22X_PWR_OUT_CTRL2, BIT(6)),
 };
 
+static const struct regulator_desc axp813_regulators[] = {
+	AXP_DESC(AXP813, DCDC1, "dcdc1", "vin1", 1600, 3400, 100,
+		 AXP803_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(0)),
+	AXP_DESC_RANGES(AXP813, DCDC2, "dcdc2", "vin2", axp803_dcdc234_ranges,
+			76, AXP803_DCDC2_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(1)),
+	AXP_DESC_RANGES(AXP813, DCDC3, "dcdc3", "vin3", axp803_dcdc234_ranges,
+			76, AXP803_DCDC3_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(2)),
+	AXP_DESC_RANGES(AXP813, DCDC4, "dcdc4", "vin4", axp803_dcdc234_ranges,
+			76, AXP803_DCDC4_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(3)),
+	AXP_DESC_RANGES(AXP813, DCDC5, "dcdc5", "vin5", axp803_dcdc5_ranges,
+			68, AXP803_DCDC5_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(4)),
+	AXP_DESC_RANGES(AXP813, DCDC6, "dcdc6", "vin6", axp803_dcdc6_ranges,
+			72, AXP803_DCDC6_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(5)),
+	AXP_DESC_RANGES(AXP813, DCDC7, "dcdc7", "vin7", axp803_dcdc6_ranges,
+			72, AXP813_DCDC7_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1,
+			BIT(6)),
+	AXP_DESC(AXP813, ALDO1, "aldo1", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(5)),
+	AXP_DESC(AXP813, ALDO2, "aldo2", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(6)),
+	AXP_DESC(AXP813, ALDO3, "aldo3", "aldoin", 700, 3300, 100,
+		 AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)),
+	AXP_DESC(AXP813, DLDO1, "dldo1", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)),
+	AXP_DESC_RANGES(AXP813, DLDO2, "dldo2", "dldoin", axp803_dldo2_ranges,
+			32, AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2,
+			BIT(4)),
+	AXP_DESC(AXP813, DLDO3, "dldo3", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)),
+	AXP_DESC(AXP813, DLDO4, "dldo4", "dldoin", 700, 3300, 100,
+		 AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)),
+	AXP_DESC(AXP813, ELDO1, "eldo1", "eldoin", 700, 1900, 50,
+		 AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)),
+	AXP_DESC(AXP813, ELDO2, "eldo2", "eldoin", 700, 1900, 50,
+		 AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)),
+	AXP_DESC(AXP813, ELDO3, "eldo3", "eldoin", 700, 1900, 50,
+		 AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)),
+	/* to do / check ... */
+	AXP_DESC(AXP813, FLDO1, "fldo1", "fldoin", 700, 1450, 50,
+		 AXP803_FLDO1_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(2)),
+	AXP_DESC(AXP813, FLDO2, "fldo2", "fldoin", 700, 1450, 50,
+		 AXP803_FLDO2_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(3)),
+	/*
+	 * TODO: FLDO3 = {DCDC5, FLDOIN} / 2
+	 *
+	 * This means FLDO3 effectively switches supplies at runtime,
+	 * something the regulator subsystem does not support.
+	 */
+	AXP_DESC_FIXED(AXP813, RTC_LDO, "rtc-ldo", "ips", 1800),
+	AXP_DESC_IO(AXP813, LDO_IO0, "ldo-io0", "ips", 700, 3300, 100,
+		    AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07,
+		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
+	AXP_DESC_IO(AXP813, LDO_IO1, "ldo-io1", "ips", 700, 3300, 100,
+		    AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07,
+		    AXP22X_IO_ENABLED, AXP22X_IO_DISABLED),
+	AXP_DESC_SW(AXP813, SW, "sw", "swin", AXP22X_PWR_OUT_CTRL2, BIT(7)),
+};
+
 static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 {
 	struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
@@ -441,9 +505,10 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq)
 		step = 75;
 		break;
 	case AXP803_ID:
+	case AXP813_ID:
 		/*
-		 * AXP803 DCDC work frequency setting has the same range and
-		 * step as AXP22X, but at a different register.
+		 * AXP803/AXP813 DCDC work frequency setting has the same
+		 * range and step as AXP22X, but at a different register.
 		 * Fall through to the check below.
 		 * (See include/linux/mfd/axp20x.h)
 		 */
@@ -561,6 +626,14 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work
 		workmode <<= id - AXP803_DCDC1;
 		break;
 
+	case AXP813_ID:
+		if (id < AXP813_DCDC1 || id > AXP813_DCDC7)
+			return -EINVAL;
+
+		mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP813_DCDC1);
+		workmode <<= id - AXP813_DCDC1;
+		break;
+
 	default:
 		/* should not happen */
 		WARN_ON(1);
@@ -579,18 +652,19 @@ static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id)
 	u32 reg = 0;
 
 	/*
-	 * Currently in our supported AXP variants, only AXP803 and AXP806
-	 * have polyphase regulators.
+	 * Currently in our supported AXP variants, only AXP803, AXP806,
+	 * and AXP813 have polyphase regulators.
 	 */
 	switch (axp20x->variant) {
 	case AXP803_ID:
+	case AXP813_ID:
 		regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, &reg);
 
 		switch (id) {
 		case AXP803_DCDC3:
 			return !!(reg & BIT(6));
 		case AXP803_DCDC6:
-			return !!(reg & BIT(7));
+			return !!(reg & BIT(5));
 		}
 		break;
 
@@ -656,6 +730,12 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 		regulators = axp809_regulators;
 		nregulators = AXP809_REG_ID_MAX;
 		break;
+	case AXP813_ID:
+		regulators = axp813_regulators;
+		nregulators = AXP813_REG_ID_MAX;
+		drivevbus = of_property_read_bool(pdev->dev.parent->of_node,
+						  "x-powers,drive-vbus-en");
+		break;
 	default:
 		dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n",
 			axp20x->variant);
@@ -677,6 +757,10 @@ static int axp20x_regulator_probe(struct platform_device *pdev)
 		if (axp20x_is_polyphase_slave(axp20x, i))
 			continue;
 
+		/* Support for AXP813's FLDO3 is not implemented */
+		if (axp20x->variant == AXP813_ID && i == AXP813_FLDO3)
+			continue;
+
 		/*
 		 * Regulators DC1SW and DC5LDO are connected internally,
 		 * so we have to handle their supply names separately.
diff --git a/drivers/regulator/da9211-regulator.c b/drivers/regulator/da9211-regulator.c
index aa47280efd32..9b8f47617724 100644
--- a/drivers/regulator/da9211-regulator.c
+++ b/drivers/regulator/da9211-regulator.c
@@ -1,6 +1,6 @@
 /*
  * da9211-regulator.c - Regulator device driver for DA9211/DA9212
- * /DA9213/DA9214/DA9215
+ * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
  * Copyright (C) 2015  Dialog Semiconductor Ltd.
  *
  * This library is free software; you can redistribute it and/or
@@ -496,8 +496,11 @@ static const struct i2c_device_id da9211_i2c_id[] = {
 	{"da9211", DA9211},
 	{"da9212", DA9212},
 	{"da9213", DA9213},
+	{"da9223", DA9223},
 	{"da9214", DA9214},
+	{"da9224", DA9224},
 	{"da9215", DA9215},
+	{"da9225", DA9225},
 	{},
 };
 MODULE_DEVICE_TABLE(i2c, da9211_i2c_id);
@@ -507,8 +510,11 @@ static const struct of_device_id da9211_dt_ids[] = {
 	{ .compatible = "dlg,da9211", .data = &da9211_i2c_id[0] },
 	{ .compatible = "dlg,da9212", .data = &da9211_i2c_id[1] },
 	{ .compatible = "dlg,da9213", .data = &da9211_i2c_id[2] },
-	{ .compatible = "dlg,da9214", .data = &da9211_i2c_id[3] },
-	{ .compatible = "dlg,da9215", .data = &da9211_i2c_id[4] },
+	{ .compatible = "dlg,da9223", .data = &da9211_i2c_id[3] },
+	{ .compatible = "dlg,da9214", .data = &da9211_i2c_id[4] },
+	{ .compatible = "dlg,da9224", .data = &da9211_i2c_id[5] },
+	{ .compatible = "dlg,da9215", .data = &da9211_i2c_id[6] },
+	{ .compatible = "dlg,da9225", .data = &da9211_i2c_id[7] },
 	{},
 };
 MODULE_DEVICE_TABLE(of, da9211_dt_ids);
@@ -526,5 +532,5 @@ static struct i2c_driver da9211_regulator_driver = {
 module_i2c_driver(da9211_regulator_driver);
 
 MODULE_AUTHOR("James Ban <James.Ban.opensource@diasemi.com>");
-MODULE_DESCRIPTION("DA9211/DA9212/DA9213/DA9214/DA9215 regulator driver");
+MODULE_DESCRIPTION("DA9211/DA9212/DA9213/DA9223/DA9214/DA9224/DA9215/DA9225 regulator driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/regulator/da9211-regulator.h b/drivers/regulator/da9211-regulator.h
index b841bbf330cc..2cb32aab4f82 100644
--- a/drivers/regulator/da9211-regulator.h
+++ b/drivers/regulator/da9211-regulator.h
@@ -1,6 +1,6 @@
 /*
  * da9211-regulator.h - Regulator definitions for DA9211/DA9212
- * /DA9213/DA9214/DA9215
+ * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
  * Copyright (C) 2015  Dialog Semiconductor Ltd.
  *
  * This program is free software; you can redistribute it and/or
diff --git a/drivers/regulator/fixed-helper.c b/drivers/regulator/fixed-helper.c
index f9d027992aae..777fac6fb4cb 100644
--- a/drivers/regulator/fixed-helper.c
+++ b/drivers/regulator/fixed-helper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/platform_device.h>
diff --git a/drivers/regulator/pbias-regulator.c b/drivers/regulator/pbias-regulator.c
index 0cb76ba29e84..8f782d22fdbe 100644
--- a/drivers/regulator/pbias-regulator.c
+++ b/drivers/regulator/pbias-regulator.c
@@ -34,6 +34,8 @@ struct pbias_reg_info {
 	u32 vmode;
 	unsigned int enable_time;
 	char *name;
+	const unsigned int *pbias_volt_table;
+	int n_voltages;
 };
 
 struct pbias_regulator_data {
@@ -49,11 +51,16 @@ struct pbias_of_data {
 	unsigned int offset;
 };
 
-static const unsigned int pbias_volt_table[] = {
+static const unsigned int pbias_volt_table_3_0V[] = {
 	1800000,
 	3000000
 };
 
+static const unsigned int pbias_volt_table_3_3V[] = {
+	1800000,
+	3300000
+};
+
 static const struct regulator_ops pbias_regulator_voltage_ops = {
 	.list_voltage = regulator_list_voltage_table,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
@@ -69,6 +76,8 @@ static const struct pbias_reg_info pbias_mmc_omap2430 = {
 	.vmode = BIT(0),
 	.disable_val = 0,
 	.enable_time = 100,
+	.pbias_volt_table = pbias_volt_table_3_0V,
+	.n_voltages = 2,
 	.name = "pbias_mmc_omap2430"
 };
 
@@ -77,6 +86,8 @@ static const struct pbias_reg_info pbias_sim_omap3 = {
 	.enable_mask = BIT(9),
 	.vmode = BIT(8),
 	.enable_time = 100,
+	.pbias_volt_table = pbias_volt_table_3_0V,
+	.n_voltages = 2,
 	.name = "pbias_sim_omap3"
 };
 
@@ -86,6 +97,8 @@ static const struct pbias_reg_info pbias_mmc_omap4 = {
 	.disable_val = BIT(25),
 	.vmode = BIT(21),
 	.enable_time = 100,
+	.pbias_volt_table = pbias_volt_table_3_0V,
+	.n_voltages = 2,
 	.name = "pbias_mmc_omap4"
 };
 
@@ -95,6 +108,8 @@ static const struct pbias_reg_info pbias_mmc_omap5 = {
 	.disable_val = BIT(25),
 	.vmode = BIT(21),
 	.enable_time = 100,
+	.pbias_volt_table = pbias_volt_table_3_3V,
+	.n_voltages = 2,
 	.name = "pbias_mmc_omap5"
 };
 
@@ -199,8 +214,8 @@ static int pbias_regulator_probe(struct platform_device *pdev)
 		drvdata[data_idx].desc.owner = THIS_MODULE;
 		drvdata[data_idx].desc.type = REGULATOR_VOLTAGE;
 		drvdata[data_idx].desc.ops = &pbias_regulator_voltage_ops;
-		drvdata[data_idx].desc.volt_table = pbias_volt_table;
-		drvdata[data_idx].desc.n_voltages = 2;
+		drvdata[data_idx].desc.volt_table = info->pbias_volt_table;
+		drvdata[data_idx].desc.n_voltages = info->n_voltages;
 		drvdata[data_idx].desc.enable_time = info->enable_time;
 		drvdata[data_idx].desc.vsel_reg = offset;
 		drvdata[data_idx].desc.vsel_mask = info->vmode;
diff --git a/drivers/regulator/qcom_spmi-regulator.c b/drivers/regulator/qcom_spmi-regulator.c
index 16c5f84e06a7..0241ada47d04 100644
--- a/drivers/regulator/qcom_spmi-regulator.c
+++ b/drivers/regulator/qcom_spmi-regulator.c
@@ -593,13 +593,20 @@ static int spmi_sw_selector_to_hw(struct spmi_regulator *vreg,
 				  u8 *voltage_sel)
 {
 	const struct spmi_voltage_range *range, *end;
+	unsigned offset;
 
 	range = vreg->set_points->range;
 	end = range + vreg->set_points->count;
 
 	for (; range < end; range++) {
 		if (selector < range->n_voltages) {
-			*voltage_sel = selector;
+			/*
+			 * hardware selectors between set point min and real
+			 * min are invalid so we ignore them
+			 */
+			offset = range->set_point_min_uV - range->min_uV;
+			offset /= range->step_uV;
+			*voltage_sel = selector + offset;
 			*range_sel = range->range_sel;
 			return 0;
 		}
@@ -613,15 +620,35 @@ static int spmi_sw_selector_to_hw(struct spmi_regulator *vreg,
 static int spmi_hw_selector_to_sw(struct spmi_regulator *vreg, u8 hw_sel,
 				  const struct spmi_voltage_range *range)
 {
-	int sw_sel = hw_sel;
+	unsigned sw_sel = 0;
+	unsigned offset, max_hw_sel;
 	const struct spmi_voltage_range *r = vreg->set_points->range;
-
-	while (r != range) {
+	const struct spmi_voltage_range *end = r + vreg->set_points->count;
+
+	for (; r < end; r++) {
+		if (r == range && range->n_voltages) {
+			/*
+			 * hardware selectors between set point min and real
+			 * min and between set point max and real max are
+			 * invalid so we return an error if they're
+			 * programmed into the hardware
+			 */
+			offset = range->set_point_min_uV - range->min_uV;
+			offset /= range->step_uV;
+			if (hw_sel < offset)
+				return -EINVAL;
+
+			max_hw_sel = range->set_point_max_uV - range->min_uV;
+			max_hw_sel /= range->step_uV;
+			if (hw_sel > max_hw_sel)
+				return -EINVAL;
+
+			return sw_sel + hw_sel - offset;
+		}
 		sw_sel += r->n_voltages;
-		r++;
 	}
 
-	return sw_sel;
+	return -EINVAL;
 }
 
 static const struct spmi_voltage_range *
@@ -1619,11 +1646,20 @@ static const struct spmi_regulator_data pm8994_regulators[] = {
 	{ }
 };
 
+static const struct spmi_regulator_data pmi8994_regulators[] = {
+	{ "s1", 0x1400, "vdd_s1", },
+	{ "s2", 0x1700, "vdd_s2", },
+	{ "s3", 0x1a00, "vdd_s3", },
+	{ "l1", 0x4000, "vdd_l1", },
+        { }
+};
+
 static const struct of_device_id qcom_spmi_regulator_match[] = {
 	{ .compatible = "qcom,pm8841-regulators", .data = &pm8841_regulators },
 	{ .compatible = "qcom,pm8916-regulators", .data = &pm8916_regulators },
 	{ .compatible = "qcom,pm8941-regulators", .data = &pm8941_regulators },
 	{ .compatible = "qcom,pm8994-regulators", .data = &pm8994_regulators },
+	{ .compatible = "qcom,pmi8994-regulators", .data = &pmi8994_regulators },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qcom_spmi_regulator_match);
diff --git a/drivers/regulator/rn5t618-regulator.c b/drivers/regulator/rn5t618-regulator.c
index ef2be56460fe..790a4a73ea2c 100644
--- a/drivers/regulator/rn5t618-regulator.c
+++ b/drivers/regulator/rn5t618-regulator.c
@@ -29,7 +29,7 @@ static const struct regulator_ops rn5t618_reg_ops = {
 };
 
 #define REG(rid, ereg, emask, vreg, vmask, min, max, step)		\
-	[RN5T618_##rid] = {						\
+	{								\
 		.name		= #rid,					\
 		.of_match	= of_match_ptr(#rid),			\
 		.regulators_node = of_match_ptr("regulators"),		\
diff --git a/drivers/regulator/tps65218-regulator.c b/drivers/regulator/tps65218-regulator.c
index 9aafbb03482d..bc489958fed7 100644
--- a/drivers/regulator/tps65218-regulator.c
+++ b/drivers/regulator/tps65218-regulator.c
@@ -154,7 +154,7 @@ static int tps65218_pmic_set_suspend_disable(struct regulator_dev *dev)
 
 	if (!tps->strobes[rid]) {
 		if (rid == TPS65218_DCDC_3)
-			tps->info[rid]->strobe = 3;
+			tps->strobes[rid] = 3;
 		else
 			return -EINVAL;
 	}
diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index df63e44526ac..bf04479456a0 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -109,6 +109,7 @@ config QCOM_Q6V5_PIL
 	depends on OF && ARCH_QCOM
 	depends on QCOM_SMEM
 	depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
+	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
 	select MFD_SYSCON
 	select QCOM_RPROC_COMMON
 	select QCOM_SCM
@@ -120,6 +121,7 @@ config QCOM_WCNSS_PIL
 	tristate "Qualcomm WCNSS Peripheral Image Loader"
 	depends on OF && ARCH_QCOM
 	depends on RPMSG_QCOM_SMD || (COMPILE_TEST && RPMSG_QCOM_SMD=n)
+	depends on RPMSG_QCOM_GLINK_SMEM || RPMSG_QCOM_GLINK_SMEM=n
 	depends on QCOM_SMEM
 	select QCOM_MDT_LOADER
 	select QCOM_RPROC_COMMON
diff --git a/drivers/remoteproc/Makefile b/drivers/remoteproc/Makefile
index 1a0b3dd44b8c..6e16450ce11f 100644
--- a/drivers/remoteproc/Makefile
+++ b/drivers/remoteproc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Generic framework for controlling remote processors
 #
diff --git a/drivers/remoteproc/imx_rproc.c b/drivers/remoteproc/imx_rproc.c
index 612d91403341..633268e9d550 100644
--- a/drivers/remoteproc/imx_rproc.c
+++ b/drivers/remoteproc/imx_rproc.c
@@ -264,15 +264,14 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
 		if (!(att->flags & ATT_OWN))
 			continue;
 
-		if (b > IMX7D_RPROC_MEM_MAX)
+		if (b >= IMX7D_RPROC_MEM_MAX)
 			break;
 
 		priv->mem[b].cpu_addr = devm_ioremap(&pdev->dev,
 						     att->sa, att->size);
-		if (IS_ERR(priv->mem[b].cpu_addr)) {
+		if (!priv->mem[b].cpu_addr) {
 			dev_err(dev, "devm_ioremap_resource failed\n");
-			err = PTR_ERR(priv->mem[b].cpu_addr);
-			return err;
+			return -ENOMEM;
 		}
 		priv->mem[b].sys_addr = att->sa;
 		priv->mem[b].size = att->size;
@@ -296,7 +295,7 @@ static int imx_rproc_addr_init(struct imx_rproc *priv,
 			return err;
 		}
 
-		if (b > IMX7D_RPROC_MEM_MAX)
+		if (b >= IMX7D_RPROC_MEM_MAX)
 			break;
 
 		priv->mem[b].cpu_addr = devm_ioremap_resource(&pdev->dev, &res);
diff --git a/drivers/remoteproc/qcom_common.h b/drivers/remoteproc/qcom_common.h
index 4f8bc168473c..832e20271664 100644
--- a/drivers/remoteproc/qcom_common.h
+++ b/drivers/remoteproc/qcom_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RPROC_QCOM_COMMON_H__
 #define __RPROC_QCOM_COMMON_H__
 
diff --git a/drivers/remoteproc/qcom_wcnss.h b/drivers/remoteproc/qcom_wcnss.h
index 25fb7f62a457..62c8682d0a92 100644
--- a/drivers/remoteproc/qcom_wcnss.h
+++ b/drivers/remoteproc/qcom_wcnss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_WNCSS_H__
 #define __QCOM_WNCSS_H__
 
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index 52d5251660b9..e2baecbb9dd3 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -34,11 +34,12 @@ config RESET_BERLIN
 	help
 	  This enables the reset controller driver for Marvell Berlin SoCs.
 
-config RESET_HSDK_V1
-	bool "HSDK v1 Reset Driver"
-	default n
+config RESET_HSDK
+	bool "Synopsys HSDK Reset Driver"
+	depends on HAS_IOMEM
+	depends on ARC_SOC_HSDK || COMPILE_TEST
 	help
-	  This enables the reset controller driver for HSDK v1.
+	  This enables the reset controller driver for HSDK board.
 
 config RESET_IMX7
 	bool "i.MX7 Reset Driver" if COMPILE_TEST
@@ -47,6 +48,12 @@ config RESET_IMX7
 	help
 	  This enables the reset controller driver for i.MX7 SoCs.
 
+config RESET_LANTIQ
+	bool "Lantiq XWAY Reset Driver" if COMPILE_TEST
+	default SOC_TYPE_XWAY
+	help
+	  This enables the reset controller driver for Lantiq / Intel XWAY SoCs.
+
 config RESET_LPC18XX
 	bool "LPC18xx/43xx Reset Driver" if COMPILE_TEST
 	default ARCH_LPC18XX
diff --git a/drivers/reset/Makefile b/drivers/reset/Makefile
index b62783f50fe5..c1fd702ac57c 100644
--- a/drivers/reset/Makefile
+++ b/drivers/reset/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += core.o
 obj-y += hisilicon/
 obj-$(CONFIG_ARCH_STI) += sti/
@@ -5,8 +6,9 @@ obj-$(CONFIG_ARCH_TEGRA) += tegra/
 obj-$(CONFIG_RESET_A10SR) += reset-a10sr.o
 obj-$(CONFIG_RESET_ATH79) += reset-ath79.o
 obj-$(CONFIG_RESET_BERLIN) += reset-berlin.o
-obj-$(CONFIG_RESET_HSDK_V1) += reset-hsdk-v1.o
+obj-$(CONFIG_RESET_HSDK) += reset-hsdk.o
 obj-$(CONFIG_RESET_IMX7) += reset-imx7.o
+obj-$(CONFIG_RESET_LANTIQ) += reset-lantiq.o
 obj-$(CONFIG_RESET_LPC18XX) += reset-lpc18xx.o
 obj-$(CONFIG_RESET_MESON) += reset-meson.o
 obj-$(CONFIG_RESET_OXNAS) += reset-oxnas.o
diff --git a/drivers/reset/reset-hsdk-v1.c b/drivers/reset/reset-hsdk.c
index bca13e4bf622..8bce391c6943 100644
--- a/drivers/reset/reset-hsdk-v1.c
+++ b/drivers/reset/reset-hsdk.c
@@ -1,7 +1,7 @@
 /*
  * Copyright (C) 2017 Synopsys.
  *
- * Synopsys HSDKv1 SDP reset driver.
+ * Synopsys HSDK Development platform reset driver.
  *
  * This file is licensed under the terms of the GNU General Public
  * License version 2. This program is licensed "as is" without any
@@ -18,9 +18,9 @@
 #include <linux/slab.h>
 #include <linux/types.h>
 
-#define to_hsdkv1_rst(p)	container_of((p), struct hsdkv1_rst, rcdev)
+#define to_hsdk_rst(p)	container_of((p), struct hsdk_rst, rcdev)
 
-struct hsdkv1_rst {
+struct hsdk_rst {
 	void __iomem			*regs_ctl;
 	void __iomem			*regs_rst;
 	spinlock_t			lock;
@@ -49,12 +49,12 @@ static const u32 rst_map[] = {
 #define CGU_IP_SW_RESET_RESET		BIT(0)
 #define SW_RESET_TIMEOUT		10000
 
-static void hsdkv1_reset_config(struct hsdkv1_rst *rst, unsigned long id)
+static void hsdk_reset_config(struct hsdk_rst *rst, unsigned long id)
 {
 	writel(rst_map[id], rst->regs_ctl + CGU_SYS_RST_CTRL);
 }
 
-static int hsdkv1_reset_do(struct hsdkv1_rst *rst)
+static int hsdk_reset_do(struct hsdk_rst *rst)
 {
 	u32 reg;
 
@@ -69,28 +69,28 @@ static int hsdkv1_reset_do(struct hsdkv1_rst *rst)
 		!(reg & CGU_IP_SW_RESET_RESET), 5, SW_RESET_TIMEOUT);
 }
 
-static int hsdkv1_reset_reset(struct reset_controller_dev *rcdev,
+static int hsdk_reset_reset(struct reset_controller_dev *rcdev,
 			      unsigned long id)
 {
-	struct hsdkv1_rst *rst = to_hsdkv1_rst(rcdev);
+	struct hsdk_rst *rst = to_hsdk_rst(rcdev);
 	unsigned long flags;
 	int ret;
 
 	spin_lock_irqsave(&rst->lock, flags);
-	hsdkv1_reset_config(rst, id);
-	ret = hsdkv1_reset_do(rst);
+	hsdk_reset_config(rst, id);
+	ret = hsdk_reset_do(rst);
 	spin_unlock_irqrestore(&rst->lock, flags);
 
 	return ret;
 }
 
-static const struct reset_control_ops hsdkv1_reset_ops = {
-	.reset	= hsdkv1_reset_reset,
+static const struct reset_control_ops hsdk_reset_ops = {
+	.reset	= hsdk_reset_reset,
 };
 
-static int hsdkv1_reset_probe(struct platform_device *pdev)
+static int hsdk_reset_probe(struct platform_device *pdev)
 {
-	struct hsdkv1_rst *rst;
+	struct hsdk_rst *rst;
 	struct resource *mem;
 
 	rst = devm_kzalloc(&pdev->dev, sizeof(*rst), GFP_KERNEL);
@@ -110,7 +110,7 @@ static int hsdkv1_reset_probe(struct platform_device *pdev)
 	spin_lock_init(&rst->lock);
 
 	rst->rcdev.owner = THIS_MODULE;
-	rst->rcdev.ops = &hsdkv1_reset_ops;
+	rst->rcdev.ops = &hsdk_reset_ops;
 	rst->rcdev.of_node = pdev->dev.of_node;
 	rst->rcdev.nr_resets = HSDK_MAX_RESETS;
 	rst->rcdev.of_reset_n_cells = 1;
@@ -118,20 +118,20 @@ static int hsdkv1_reset_probe(struct platform_device *pdev)
 	return reset_controller_register(&rst->rcdev);
 }
 
-static const struct of_device_id hsdkv1_reset_dt_match[] = {
-	{ .compatible = "snps,hsdk-v1.0-reset" },
+static const struct of_device_id hsdk_reset_dt_match[] = {
+	{ .compatible = "snps,hsdk-reset" },
 	{ },
 };
 
-static struct platform_driver hsdkv1_reset_driver = {
-	.probe	= hsdkv1_reset_probe,
+static struct platform_driver hsdk_reset_driver = {
+	.probe	= hsdk_reset_probe,
 	.driver	= {
-		.name = "hsdk-v1.0-reset",
-		.of_match_table = hsdkv1_reset_dt_match,
+		.name = "hsdk-reset",
+		.of_match_table = hsdk_reset_dt_match,
 	},
 };
-builtin_platform_driver(hsdkv1_reset_driver);
+builtin_platform_driver(hsdk_reset_driver);
 
 MODULE_AUTHOR("Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>");
-MODULE_DESCRIPTION("Synopsys HSDKv1 SDP reset driver");
+MODULE_DESCRIPTION("Synopsys HSDK SDP reset driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/reset/reset-lantiq.c b/drivers/reset/reset-lantiq.c
new file mode 100644
index 000000000000..11a582e50d30
--- /dev/null
+++ b/drivers/reset/reset-lantiq.c
@@ -0,0 +1,212 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  Copyright (C) 2010 John Crispin <blogic@phrozen.org>
+ *  Copyright (C) 2013-2015 Lantiq Beteiligungs-GmbH & Co.KG
+ *  Copyright (C) 2016 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *  Copyright (C) 2017 Hauke Mehrtens <hauke@hauke-m.de>
+ */
+
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/reset-controller.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+
+#define LANTIQ_RCU_RESET_TIMEOUT	10000
+
+struct lantiq_rcu_reset_priv {
+	struct reset_controller_dev rcdev;
+	struct device *dev;
+	struct regmap *regmap;
+	u32 reset_offset;
+	u32 status_offset;
+};
+
+static struct lantiq_rcu_reset_priv *to_lantiq_rcu_reset_priv(
+	struct reset_controller_dev *rcdev)
+{
+	return container_of(rcdev, struct lantiq_rcu_reset_priv, rcdev);
+}
+
+static int lantiq_rcu_reset_status(struct reset_controller_dev *rcdev,
+				   unsigned long id)
+{
+	struct lantiq_rcu_reset_priv *priv = to_lantiq_rcu_reset_priv(rcdev);
+	unsigned int status = (id >> 8) & 0x1f;
+	u32 val;
+	int ret;
+
+	ret = regmap_read(priv->regmap, priv->status_offset, &val);
+	if (ret)
+		return ret;
+
+	return !!(val & BIT(status));
+}
+
+static int lantiq_rcu_reset_status_timeout(struct reset_controller_dev *rcdev,
+					   unsigned long id, bool assert)
+{
+	int ret;
+	int retry = LANTIQ_RCU_RESET_TIMEOUT;
+
+	do {
+		ret = lantiq_rcu_reset_status(rcdev, id);
+		if (ret < 0)
+			return ret;
+		if (ret == assert)
+			return 0;
+		usleep_range(20, 40);
+	} while (--retry);
+
+	return -ETIMEDOUT;
+}
+
+static int lantiq_rcu_reset_update(struct reset_controller_dev *rcdev,
+				   unsigned long id, bool assert)
+{
+	struct lantiq_rcu_reset_priv *priv = to_lantiq_rcu_reset_priv(rcdev);
+	unsigned int set = id & 0x1f;
+	u32 val = assert ? BIT(set) : 0;
+	int ret;
+
+	ret = regmap_update_bits(priv->regmap, priv->reset_offset, BIT(set),
+				 val);
+	if (ret) {
+		dev_err(priv->dev, "Failed to set reset bit %u\n", set);
+		return ret;
+	}
+
+
+	ret = lantiq_rcu_reset_status_timeout(rcdev, id, assert);
+	if (ret)
+		dev_err(priv->dev, "Failed to %s bit %u\n",
+			assert ? "assert" : "deassert", set);
+
+	return ret;
+}
+
+static int lantiq_rcu_reset_assert(struct reset_controller_dev *rcdev,
+			     unsigned long id)
+{
+	return lantiq_rcu_reset_update(rcdev, id, true);
+}
+
+static int lantiq_rcu_reset_deassert(struct reset_controller_dev *rcdev,
+			       unsigned long id)
+{
+	return lantiq_rcu_reset_update(rcdev, id, false);
+}
+
+static int lantiq_rcu_reset_reset(struct reset_controller_dev *rcdev,
+			    unsigned long id)
+{
+	int ret;
+
+	ret = lantiq_rcu_reset_assert(rcdev, id);
+	if (ret)
+		return ret;
+
+	return lantiq_rcu_reset_deassert(rcdev, id);
+}
+
+static const struct reset_control_ops lantiq_rcu_reset_ops = {
+	.assert = lantiq_rcu_reset_assert,
+	.deassert = lantiq_rcu_reset_deassert,
+	.status = lantiq_rcu_reset_status,
+	.reset	= lantiq_rcu_reset_reset,
+};
+
+static int lantiq_rcu_reset_of_parse(struct platform_device *pdev,
+			       struct lantiq_rcu_reset_priv *priv)
+{
+	struct device *dev = &pdev->dev;
+	const __be32 *offset;
+
+	priv->regmap = syscon_node_to_regmap(dev->of_node->parent);
+	if (IS_ERR(priv->regmap)) {
+		dev_err(&pdev->dev, "Failed to lookup RCU regmap\n");
+		return PTR_ERR(priv->regmap);
+	}
+
+	offset = of_get_address(dev->of_node, 0, NULL, NULL);
+	if (!offset) {
+		dev_err(&pdev->dev, "Failed to get RCU reset offset\n");
+		return -ENOENT;
+	}
+	priv->reset_offset = __be32_to_cpu(*offset);
+
+	offset = of_get_address(dev->of_node, 1, NULL, NULL);
+	if (!offset) {
+		dev_err(&pdev->dev, "Failed to get RCU status offset\n");
+		return -ENOENT;
+	}
+	priv->status_offset = __be32_to_cpu(*offset);
+
+	return 0;
+}
+
+static int lantiq_rcu_reset_xlate(struct reset_controller_dev *rcdev,
+				  const struct of_phandle_args *reset_spec)
+{
+	unsigned int status, set;
+
+	set = reset_spec->args[0];
+	status = reset_spec->args[1];
+
+	if (set >= rcdev->nr_resets || status >= rcdev->nr_resets)
+		return -EINVAL;
+
+	return (status << 8) | set;
+}
+
+static int lantiq_rcu_reset_probe(struct platform_device *pdev)
+{
+	struct lantiq_rcu_reset_priv *priv;
+	int err;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->dev = &pdev->dev;
+	platform_set_drvdata(pdev, priv);
+
+	err = lantiq_rcu_reset_of_parse(pdev, priv);
+	if (err)
+		return err;
+
+	priv->rcdev.ops = &lantiq_rcu_reset_ops;
+	priv->rcdev.owner = THIS_MODULE;
+	priv->rcdev.of_node = pdev->dev.of_node;
+	priv->rcdev.nr_resets = 32;
+	priv->rcdev.of_xlate = lantiq_rcu_reset_xlate;
+	priv->rcdev.of_reset_n_cells = 2;
+
+	return reset_controller_register(&priv->rcdev);
+}
+
+static const struct of_device_id lantiq_rcu_reset_dt_ids[] = {
+	{ .compatible = "lantiq,danube-reset", },
+	{ .compatible = "lantiq,xrx200-reset", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, lantiq_rcu_reset_dt_ids);
+
+static struct platform_driver lantiq_rcu_reset_driver = {
+	.probe	= lantiq_rcu_reset_probe,
+	.driver = {
+		.name		= "lantiq-reset",
+		.of_match_table	= lantiq_rcu_reset_dt_ids,
+	},
+};
+module_platform_driver(lantiq_rcu_reset_driver);
+
+MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
+MODULE_DESCRIPTION("Lantiq XWAY RCU Reset Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/reset/reset-socfpga.c b/drivers/reset/reset-socfpga.c
index c60904ff40b8..3907bbc9c6cf 100644
--- a/drivers/reset/reset-socfpga.c
+++ b/drivers/reset/reset-socfpga.c
@@ -40,8 +40,9 @@ static int socfpga_reset_assert(struct reset_controller_dev *rcdev,
 	struct socfpga_reset_data *data = container_of(rcdev,
 						     struct socfpga_reset_data,
 						     rcdev);
-	int bank = id / BITS_PER_LONG;
-	int offset = id % BITS_PER_LONG;
+	int reg_width = sizeof(u32);
+	int bank = id / (reg_width * BITS_PER_BYTE);
+	int offset = id % (reg_width * BITS_PER_BYTE);
 	unsigned long flags;
 	u32 reg;
 
@@ -61,8 +62,9 @@ static int socfpga_reset_deassert(struct reset_controller_dev *rcdev,
 						     struct socfpga_reset_data,
 						     rcdev);
 
-	int bank = id / BITS_PER_LONG;
-	int offset = id % BITS_PER_LONG;
+	int reg_width = sizeof(u32);
+	int bank = id / (reg_width * BITS_PER_BYTE);
+	int offset = id % (reg_width * BITS_PER_BYTE);
 	unsigned long flags;
 	u32 reg;
 
@@ -81,8 +83,9 @@ static int socfpga_reset_status(struct reset_controller_dev *rcdev,
 {
 	struct socfpga_reset_data *data = container_of(rcdev,
 						struct socfpga_reset_data, rcdev);
-	int bank = id / BITS_PER_LONG;
-	int offset = id % BITS_PER_LONG;
+	int reg_width = sizeof(u32);
+	int bank = id / (reg_width * BITS_PER_BYTE);
+	int offset = id % (reg_width * BITS_PER_BYTE);
 	u32 reg;
 
 	reg = readl(data->membase + (bank * BANK_INCREMENT));
@@ -132,7 +135,7 @@ static int socfpga_reset_probe(struct platform_device *pdev)
 	spin_lock_init(&data->lock);
 
 	data->rcdev.owner = THIS_MODULE;
-	data->rcdev.nr_resets = NR_BANKS * BITS_PER_LONG;
+	data->rcdev.nr_resets = NR_BANKS * (sizeof(u32) * BITS_PER_BYTE);
 	data->rcdev.ops = &socfpga_reset_ops;
 	data->rcdev.of_node = pdev->dev.of_node;
 
diff --git a/drivers/rpmsg/Makefile b/drivers/rpmsg/Makefile
index c71f4ab1ae17..9aa859502d27 100644
--- a/drivers/rpmsg/Makefile
+++ b/drivers/rpmsg/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RPMSG)		+= rpmsg_core.o
 obj-$(CONFIG_RPMSG_CHAR)	+= rpmsg_char.o
 obj-$(CONFIG_RPMSG_QCOM_GLINK_RPM) += qcom_glink_rpm.o
diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
index 5a5e927ea50f..5dcc9bf1c5bc 100644
--- a/drivers/rpmsg/qcom_glink_native.c
+++ b/drivers/rpmsg/qcom_glink_native.c
@@ -635,19 +635,18 @@ qcom_glink_alloc_intent(struct qcom_glink *glink,
 	unsigned long flags;
 
 	intent = kzalloc(sizeof(*intent), GFP_KERNEL);
-
 	if (!intent)
 		return NULL;
 
 	intent->data = kzalloc(size, GFP_KERNEL);
 	if (!intent->data)
-		return NULL;
+		goto free_intent;
 
 	spin_lock_irqsave(&channel->intent_lock, flags);
 	ret = idr_alloc_cyclic(&channel->liids, intent, 1, -1, GFP_ATOMIC);
 	if (ret < 0) {
 		spin_unlock_irqrestore(&channel->intent_lock, flags);
-		return NULL;
+		goto free_data;
 	}
 	spin_unlock_irqrestore(&channel->intent_lock, flags);
 
@@ -656,6 +655,12 @@ qcom_glink_alloc_intent(struct qcom_glink *glink,
 	intent->reuse = reuseable;
 
 	return intent;
+
+free_data:
+	kfree(intent->data);
+free_intent:
+	kfree(intent);
+	return NULL;
 }
 
 static void qcom_glink_handle_rx_done(struct qcom_glink *glink,
@@ -1197,7 +1202,7 @@ static int qcom_glink_request_intent(struct qcom_glink *glink,
 
 	ret = qcom_glink_tx(glink, &cmd, sizeof(cmd), NULL, 0, true);
 	if (ret)
-		return ret;
+		goto unlock;
 
 	ret = wait_for_completion_timeout(&channel->intent_req_comp, 10 * HZ);
 	if (!ret) {
@@ -1207,6 +1212,7 @@ static int qcom_glink_request_intent(struct qcom_glink *glink,
 		ret = channel->intent_req_result ? 0 : -ECANCELED;
 	}
 
+unlock:
 	mutex_unlock(&channel->intent_req_lock);
 	return ret;
 }
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 7230014c92af..0bf1fc02b82c 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for RTC class/drivers.
 #
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 2ed970d61da1..722d683e0b0f 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -161,6 +161,9 @@ static struct rtc_device *rtc_allocate_device(void)
 
 	device_initialize(&rtc->dev);
 
+	/* Drivers can revise this default after allocating the device. */
+	rtc->set_offset_nsec =  NSEC_PER_SEC / 2;
+
 	rtc->irq_freq = 1;
 	rtc->max_user_freq = 64;
 	rtc->dev.class = rtc_class;
diff --git a/drivers/rtc/rtc-core.h b/drivers/rtc/rtc-core.h
index ecab76a3207c..513b9bedd2c8 100644
--- a/drivers/rtc/rtc-core.h
+++ b/drivers/rtc/rtc-core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_RTC_INTF_DEV
 
 extern void __init rtc_dev_init(void);
diff --git a/drivers/rtc/rtc-efi-platform.c b/drivers/rtc/rtc-efi-platform.c
index 1a7f1d1bc174..6c037dc4e3dc 100644
--- a/drivers/rtc/rtc-efi-platform.c
+++ b/drivers/rtc/rtc-efi-platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Moved from arch/ia64/kernel/time.c
  *
diff --git a/drivers/rtc/rtc-sa1100.h b/drivers/rtc/rtc-sa1100.h
index 2c79c0c57822..cc724f5b07bc 100644
--- a/drivers/rtc/rtc-sa1100.h
+++ b/drivers/rtc/rtc-sa1100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RTC_SA1100_H__
 #define __RTC_SA1100_H__
 
diff --git a/drivers/rtc/systohc.c b/drivers/rtc/systohc.c
index b4a68ffcd06b..0c177647ea6c 100644
--- a/drivers/rtc/systohc.c
+++ b/drivers/rtc/systohc.c
@@ -10,6 +10,7 @@
 /**
  * rtc_set_ntp_time - Save NTP synchronized time to the RTC
  * @now: Current time of day
+ * @target_nsec: pointer for desired now->tv_nsec value
  *
  * Replacement for the NTP platform function update_persistent_clock64
  * that stores time for later retrieval by rtc_hctosys.
@@ -18,30 +19,52 @@
  * possible at all, and various other -errno for specific temporary failure
  * cases.
  *
+ * -EPROTO is returned if now.tv_nsec is not close enough to *target_nsec.
+ (
  * If temporary failure is indicated the caller should try again 'soon'
  */
-int rtc_set_ntp_time(struct timespec64 now)
+int rtc_set_ntp_time(struct timespec64 now, unsigned long *target_nsec)
 {
 	struct rtc_device *rtc;
 	struct rtc_time tm;
+	struct timespec64 to_set;
 	int err = -ENODEV;
-
-	if (now.tv_nsec < (NSEC_PER_SEC >> 1))
-		rtc_time64_to_tm(now.tv_sec, &tm);
-	else
-		rtc_time64_to_tm(now.tv_sec + 1, &tm);
+	bool ok;
 
 	rtc = rtc_class_open(CONFIG_RTC_SYSTOHC_DEVICE);
-	if (rtc) {
-		/* rtc_hctosys exclusively uses UTC, so we call set_time here,
-		 * not set_mmss. */
-		if (rtc->ops &&
-		    (rtc->ops->set_time ||
-		     rtc->ops->set_mmss64 ||
-		     rtc->ops->set_mmss))
-			err = rtc_set_time(rtc, &tm);
-		rtc_class_close(rtc);
+	if (!rtc)
+		goto out_err;
+
+	if (!rtc->ops || (!rtc->ops->set_time && !rtc->ops->set_mmss64 &&
+			  !rtc->ops->set_mmss))
+		goto out_close;
+
+	/* Compute the value of tv_nsec we require the caller to supply in
+	 * now.tv_nsec.  This is the value such that (now +
+	 * set_offset_nsec).tv_nsec == 0.
+	 */
+	set_normalized_timespec64(&to_set, 0, -rtc->set_offset_nsec);
+	*target_nsec = to_set.tv_nsec;
+
+	/* The ntp code must call this with the correct value in tv_nsec, if
+	 * it does not we update target_nsec and return EPROTO to make the ntp
+	 * code try again later.
+	 */
+	ok = rtc_tv_nsec_ok(rtc->set_offset_nsec, &to_set, &now);
+	if (!ok) {
+		err = -EPROTO;
+		goto out_close;
 	}
 
+	rtc_time64_to_tm(to_set.tv_sec, &tm);
+
+	/* rtc_hctosys exclusively uses UTC, so we call set_time here, not
+	 * set_mmss.
+	 */
+	err = rtc_set_time(rtc, &tm);
+
+out_close:
+	rtc_class_close(rtc);
+out_err:
 	return err;
 }
diff --git a/drivers/s390/block/Makefile b/drivers/s390/block/Makefile
index b64e2b32c753..60c85cff556f 100644
--- a/drivers/s390/block/Makefile
+++ b/drivers/s390/block/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # S/390 block devices
 #
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index ea19b4ff87a2..29f35e29d480 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -1644,7 +1644,9 @@ void dasd_generic_handle_state_change(struct dasd_device *device)
 	dasd_schedule_device_bh(device);
 	if (device->block) {
 		dasd_schedule_block_bh(device->block);
-		blk_mq_run_hw_queues(device->block->request_queue, true);
+		if (device->block->request_queue)
+			blk_mq_run_hw_queues(device->block->request_queue,
+					     true);
 	}
 }
 EXPORT_SYMBOL_GPL(dasd_generic_handle_state_change);
@@ -3759,7 +3761,9 @@ int dasd_generic_path_operational(struct dasd_device *device)
 	dasd_schedule_device_bh(device);
 	if (device->block) {
 		dasd_schedule_block_bh(device->block);
-		blk_mq_run_hw_queues(device->block->request_queue, true);
+		if (device->block->request_queue)
+			blk_mq_run_hw_queues(device->block->request_queue,
+					     true);
 		}
 
 	if (!device->stopped)
@@ -4025,7 +4029,9 @@ int dasd_generic_restore_device(struct ccw_device *cdev)
 
 	if (device->block) {
 		dasd_schedule_block_bh(device->block);
-		blk_mq_run_hw_queues(device->block->request_queue, true);
+		if (device->block->request_queue)
+			blk_mq_run_hw_queues(device->block->request_queue,
+					     true);
 	}
 
 	clear_bit(DASD_FLAG_SUSPENDED, &device->flags);
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index e448a0fc0c09..c94b606e0df8 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Horst  Hummel    <Horst.Hummel@de.ibm.com>
  *		    Holger Smolinski <Holger.Smolinski@de.ibm.com>
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index 0e0e622eadc3..62f5f04d8f61 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PAV alias management for the DASD ECKD discipline
  *
diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h
index e84a5468d810..405b6feed465 100644
--- a/drivers/s390/block/dasd_diag.h
+++ b/drivers/s390/block/dasd_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  * Based on.......: linux/drivers/s390/block/mdisk.h
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h
index 34e153a6b19c..5869d2fede35 100644
--- a/drivers/s390/block/dasd_eckd.h
+++ b/drivers/s390/block/dasd_eckd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c
index 8713fefd794b..a7917d473774 100644
--- a/drivers/s390/block/dasd_eer.c
+++ b/drivers/s390/block/dasd_eer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Character device driver for extended error reporting.
  *
@@ -295,7 +296,7 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device,
 {
 	struct dasd_ccw_req *temp_cqr;
 	int data_size;
-	struct timeval tv;
+	struct timespec64 ts;
 	struct dasd_eer_header header;
 	unsigned long flags;
 	struct eerbuffer *eerb;
@@ -309,9 +310,9 @@ static void dasd_eer_write_standard_trigger(struct dasd_device *device,
 
 	header.total_size = sizeof(header) + data_size + 4; /* "EOR" */
 	header.trigger = trigger;
-	do_gettimeofday(&tv);
-	header.tv_sec = tv.tv_sec;
-	header.tv_usec = tv.tv_usec;
+	ktime_get_real_ts64(&ts);
+	header.tv_sec = ts.tv_sec;
+	header.tv_usec = ts.tv_nsec / NSEC_PER_USEC;
 	strncpy(header.busid, dev_name(&device->cdev->dev),
 		DASD_EER_BUSID_SIZE);
 
@@ -339,7 +340,7 @@ static void dasd_eer_write_snss_trigger(struct dasd_device *device,
 {
 	int data_size;
 	int snss_rc;
-	struct timeval tv;
+	struct timespec64 ts;
 	struct dasd_eer_header header;
 	unsigned long flags;
 	struct eerbuffer *eerb;
@@ -352,9 +353,9 @@ static void dasd_eer_write_snss_trigger(struct dasd_device *device,
 
 	header.total_size = sizeof(header) + data_size + 4; /* "EOR" */
 	header.trigger = DASD_EER_STATECHANGE;
-	do_gettimeofday(&tv);
-	header.tv_sec = tv.tv_sec;
-	header.tv_usec = tv.tv_usec;
+	ktime_get_real_ts64(&ts);
+	header.tv_sec = ts.tv_sec;
+	header.tv_usec = ts.tv_nsec / NSEC_PER_USEC;
 	strncpy(header.busid, dev_name(&device->cdev->dev),
 		DASD_EER_BUSID_SIZE);
 
diff --git a/drivers/s390/block/dasd_erp.c b/drivers/s390/block/dasd_erp.c
index 6389feb2fb7a..ba4fa372d02d 100644
--- a/drivers/s390/block/dasd_erp.c
+++ b/drivers/s390/block/dasd_erp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
diff --git a/drivers/s390/block/dasd_fba.h b/drivers/s390/block/dasd_fba.h
index b5d3db0e5efb..b14bf1b2c691 100644
--- a/drivers/s390/block/dasd_fba.h
+++ b/drivers/s390/block/dasd_fba.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  * Bugreports.to..: <Linux390@de.ibm.com>
diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c
index 8b1341fb2e0d..7036a6c6f86f 100644
--- a/drivers/s390/block/dasd_genhd.c
+++ b/drivers/s390/block/dasd_genhd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index db470bd10175..b095a23bcc0c 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
@@ -95,14 +96,6 @@ do { \
 			    d_data); \
 } while(0)
 
-#define DBF_DEV_EXC(d_level, d_device, d_str, d_data...) \
-do { \
-	debug_sprintf_exception(d_device->debug_area, \
-				d_level, \
-				d_str "\n", \
-				d_data); \
-} while(0)
-
 #define DBF_EVENT(d_level, d_str, d_data...)\
 do { \
 	debug_sprintf_event(dasd_debug_area, \
@@ -121,14 +114,6 @@ do { \
 			    __dev_id.ssid, __dev_id.devno, d_data);	\
 } while (0)
 
-#define DBF_EXC(d_level, d_str, d_data...)\
-do { \
-	debug_sprintf_exception(dasd_debug_area, \
-				d_level,\
-				d_str "\n", \
-				d_data); \
-} while(0)
-
 /* limit size for an errorstring */
 #define ERRORLENGTH 30
 
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index ec65c1e51c2a..7bdc6aaa0ba3 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
diff --git a/drivers/s390/block/dasd_proc.c b/drivers/s390/block/dasd_proc.c
index 7104d6765773..c33788a829c3 100644
--- a/drivers/s390/block/dasd_proc.c
+++ b/drivers/s390/block/dasd_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
  *		    Horst Hummel <Horst.Hummel@de.ibm.com>
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index 2e7fd966c515..eb51893c74a4 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -249,7 +249,7 @@ static void scm_request_requeue(struct scm_request *scmrq)
 static void scm_request_finish(struct scm_request *scmrq)
 {
 	struct scm_blk_dev *bdev = scmrq->bdev;
-	int *error;
+	blk_status_t *error;
 	int i;
 
 	for (i = 0; i < nr_requests_per_io && scmrq->request[i]; i++) {
@@ -415,7 +415,7 @@ void scm_blk_irq(struct scm_device *scmdev, void *data, blk_status_t error)
 
 static void scm_blk_request_done(struct request *req)
 {
-	int *error = blk_mq_rq_to_pdu(req);
+	blk_status_t *error = blk_mq_rq_to_pdu(req);
 
 	blk_mq_end_request(req, *error);
 }
@@ -450,7 +450,7 @@ int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
 	atomic_set(&bdev->queued_reqs, 0);
 
 	bdev->tag_set.ops = &scm_mq_ops;
-	bdev->tag_set.cmd_size = sizeof(int);
+	bdev->tag_set.cmd_size = sizeof(blk_status_t);
 	bdev->tag_set.nr_hw_queues = nr_requests;
 	bdev->tag_set.queue_depth = nr_requests_per_io * nr_requests;
 	bdev->tag_set.flags = BLK_MQ_F_SHOULD_MERGE;
diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h
index 71288dd9dd7f..a05a4297cfae 100644
--- a/drivers/s390/block/scm_blk.h
+++ b/drivers/s390/block/scm_blk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SCM_BLK_H
 #define SCM_BLK_H
 
@@ -55,13 +56,7 @@ extern debug_info_t *scm_debug;
 
 static inline void SCM_LOG_HEX(int level, void *data, int length)
 {
-	if (!debug_level_enabled(scm_debug, level))
-		return;
-	while (length > 0) {
-		debug_event(scm_debug, level, data, length);
-		length -= scm_debug->buf_size;
-		data += scm_debug->buf_size;
-	}
+	debug_event(scm_debug, level, data, length);
 }
 
 static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)
diff --git a/drivers/s390/block/scm_drv.c b/drivers/s390/block/scm_drv.c
index c98cf52d78d1..3134fd6e058e 100644
--- a/drivers/s390/block/scm_drv.c
+++ b/drivers/s390/block/scm_drv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device driver for s390 storage class memory.
  *
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 0c443e26835d..05ac6ba15a53 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # S/390 character devices
 #
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 9ec4ae056158..353f0bebcf8c 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 3215 line mode terminal driver.
  *
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 8522cfce5b4e..be3e3c1206c2 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IBM/3270 Driver - console view.
  *
diff --git a/drivers/s390/char/ctrlchar.c b/drivers/s390/char/ctrlchar.c
index f7d92584b993..e1686a69a68e 100644
--- a/drivers/s390/char/ctrlchar.c
+++ b/drivers/s390/char/ctrlchar.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Unified handling of special chars.
  *
diff --git a/drivers/s390/char/ctrlchar.h b/drivers/s390/char/ctrlchar.h
index 59c2d6e55e55..e52afa3b8180 100644
--- a/drivers/s390/char/ctrlchar.h
+++ b/drivers/s390/char/ctrlchar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Unified handling of special chars.
  *
diff --git a/drivers/s390/char/defkeymap.c b/drivers/s390/char/defkeymap.c
index 07c7f31081bc..98a5c459a1bf 100644
--- a/drivers/s390/char/defkeymap.c
+++ b/drivers/s390/char/defkeymap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /* Do not edit this file! It was automatically generated by   */
 /*    loadkeys --mktable defkeymap.map > defkeymap.c          */
diff --git a/drivers/s390/char/diag_ftp.c b/drivers/s390/char/diag_ftp.c
index a5ccbf6f0d36..6bf1058de873 100644
--- a/drivers/s390/char/diag_ftp.c
+++ b/drivers/s390/char/diag_ftp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    DIAGNOSE X'2C4' instruction based HMC FTP services, useable on z/VM
  *
diff --git a/drivers/s390/char/diag_ftp.h b/drivers/s390/char/diag_ftp.h
index 3abd2614053a..5d036ba7114f 100644
--- a/drivers/s390/char/diag_ftp.h
+++ b/drivers/s390/char/diag_ftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    DIAGNOSE X'2C4' instruction based SE/HMC FTP Services, useable on z/VM
  *
diff --git a/drivers/s390/char/hmcdrv_cache.c b/drivers/s390/char/hmcdrv_cache.c
index 4cda5ada143a..1f5bdb237862 100644
--- a/drivers/s390/char/hmcdrv_cache.c
+++ b/drivers/s390/char/hmcdrv_cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    SE/HMC Drive (Read) Cache Functions
  *
diff --git a/drivers/s390/char/hmcdrv_cache.h b/drivers/s390/char/hmcdrv_cache.h
index a14b57526781..d69f9fe87faa 100644
--- a/drivers/s390/char/hmcdrv_cache.h
+++ b/drivers/s390/char/hmcdrv_cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    SE/HMC Drive (Read) Cache Functions
  *
diff --git a/drivers/s390/char/hmcdrv_dev.c b/drivers/s390/char/hmcdrv_dev.c
index 43cee7fcd01c..20e9cd542e03 100644
--- a/drivers/s390/char/hmcdrv_dev.c
+++ b/drivers/s390/char/hmcdrv_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    HMC Drive CD/DVD Device
  *
diff --git a/drivers/s390/char/hmcdrv_dev.h b/drivers/s390/char/hmcdrv_dev.h
index cb17f07e02de..558eba929130 100644
--- a/drivers/s390/char/hmcdrv_dev.h
+++ b/drivers/s390/char/hmcdrv_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    SE/HMC Drive FTP Device
  *
diff --git a/drivers/s390/char/hmcdrv_ftp.c b/drivers/s390/char/hmcdrv_ftp.c
index 8cb7d8fbadd6..0e70397d6e04 100644
--- a/drivers/s390/char/hmcdrv_ftp.c
+++ b/drivers/s390/char/hmcdrv_ftp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    HMC Drive FTP Services
  *
diff --git a/drivers/s390/char/hmcdrv_ftp.h b/drivers/s390/char/hmcdrv_ftp.h
index f3643a7b3676..d12ca12b5ccd 100644
--- a/drivers/s390/char/hmcdrv_ftp.h
+++ b/drivers/s390/char/hmcdrv_ftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    SE/HMC Drive FTP Services
  *
diff --git a/drivers/s390/char/keyboard.c b/drivers/s390/char/keyboard.c
index 186d05e4c767..5b505fdaedec 100644
--- a/drivers/s390/char/keyboard.c
+++ b/drivers/s390/char/keyboard.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    ebcdic keycode functions for s390 console drivers
  *
diff --git a/drivers/s390/char/keyboard.h b/drivers/s390/char/keyboard.h
index a31f339211d5..a074d9711628 100644
--- a/drivers/s390/char/keyboard.h
+++ b/drivers/s390/char/keyboard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    ebcdic keycode functions for s390 console drivers
  *
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index 56519cbb165c..114ca7cbf889 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IBM/3270 Driver
  *
diff --git a/drivers/s390/char/sclp.c b/drivers/s390/char/sclp.c
index 6111c1fa2d1e..41d8aa96801f 100644
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * core function to access sclp interface
  *
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 53b5d1b9761a..f41f6e2ca063 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 1999,2012
  *
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index dff8b94871f0..d7686a68c093 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2007,2012
  *
diff --git a/drivers/s390/char/sclp_con.c b/drivers/s390/char/sclp_con.c
index 6037bc87e767..7027e61a6931 100644
--- a/drivers/s390/char/sclp_con.c
+++ b/drivers/s390/char/sclp_con.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SCLP line mode console driver
  *
@@ -210,11 +211,8 @@ sclp_console_write(struct console *console, const char *message,
 	/* Setup timer to output current console buffer after 1/10 second */
 	if (sclp_conbuf != NULL && sclp_chars_in_buffer(sclp_conbuf) != 0 &&
 	    !timer_pending(&sclp_con_timer)) {
-		init_timer(&sclp_con_timer);
-		sclp_con_timer.function = sclp_console_timeout;
-		sclp_con_timer.data = 0UL;
-		sclp_con_timer.expires = jiffies + HZ/10;
-		add_timer(&sclp_con_timer);
+		setup_timer(&sclp_con_timer, sclp_console_timeout, 0UL);
+		mod_timer(&sclp_con_timer, jiffies + HZ / 10);
 	}
 out:
 	spin_unlock_irqrestore(&sclp_con_lock, flags);
diff --git a/drivers/s390/char/sclp_config.c b/drivers/s390/char/sclp_config.c
index 7003d52c2191..194ffd5c8580 100644
--- a/drivers/s390/char/sclp_config.c
+++ b/drivers/s390/char/sclp_config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c
index 90d92fbe7b9b..f60d7ea8268d 100644
--- a/drivers/s390/char/sclp_cpi_sys.c
+++ b/drivers/s390/char/sclp_cpi_sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    SCLP control program identification sysfs interface
  *
diff --git a/drivers/s390/char/sclp_cpi_sys.h b/drivers/s390/char/sclp_cpi_sys.h
index 65bb6a99c97f..edf60d1ca633 100644
--- a/drivers/s390/char/sclp_cpi_sys.h
+++ b/drivers/s390/char/sclp_cpi_sys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    SCLP control program identification sysfs interface
  *
diff --git a/drivers/s390/char/sclp_ctl.c b/drivers/s390/char/sclp_ctl.c
index 78a7e4f94721..a78cea0c3a09 100644
--- a/drivers/s390/char/sclp_ctl.c
+++ b/drivers/s390/char/sclp_ctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IOCTL interface for SCLP
  *
diff --git a/drivers/s390/char/sclp_diag.h b/drivers/s390/char/sclp_diag.h
index 59c4afa5e670..796c5311b865 100644
--- a/drivers/s390/char/sclp_diag.h
+++ b/drivers/s390/char/sclp_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2013
  *    Author(s): Ralf Hoppe (rhoppe@de.ibm.com)
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index bc1fc00910b0..d06bc5674e5f 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SCLP early driver
  *
diff --git a/drivers/s390/char/sclp_early_core.c b/drivers/s390/char/sclp_early_core.c
index 5029cc87e80f..edeb2597b0b8 100644
--- a/drivers/s390/char/sclp_early_core.c
+++ b/drivers/s390/char/sclp_early_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2015
  *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/drivers/s390/char/sclp_ftp.c b/drivers/s390/char/sclp_ftp.c
index 6561cc5b2d5d..dfdd6c8fd17e 100644
--- a/drivers/s390/char/sclp_ftp.c
+++ b/drivers/s390/char/sclp_ftp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    SCLP Event Type (ET) 7 - Diagnostic Test FTP Services, useable on LPAR
  *
diff --git a/drivers/s390/char/sclp_ftp.h b/drivers/s390/char/sclp_ftp.h
index 98ba3183e7d9..d64da18c194d 100644
--- a/drivers/s390/char/sclp_ftp.h
+++ b/drivers/s390/char/sclp_ftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    SCLP Event Type (ET) 7 - Diagnostic Test FTP Services, useable on LPAR
  *
diff --git a/drivers/s390/char/sclp_ocf.c b/drivers/s390/char/sclp_ocf.c
index f9cbb1ab047b..d35f10ea5b52 100644
--- a/drivers/s390/char/sclp_ocf.c
+++ b/drivers/s390/char/sclp_ocf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    SCLP OCF communication parameters sysfs interface
  *
diff --git a/drivers/s390/char/sclp_pci.c b/drivers/s390/char/sclp_pci.c
index 4dbb3dfd4bc7..e7c84a4e5eb5 100644
--- a/drivers/s390/char/sclp_pci.c
+++ b/drivers/s390/char/sclp_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI I/O adapter configuration related functions.
  *
diff --git a/drivers/s390/char/sclp_quiesce.c b/drivers/s390/char/sclp_quiesce.c
index e4958511168a..76956c2131cd 100644
--- a/drivers/s390/char/sclp_quiesce.c
+++ b/drivers/s390/char/sclp_quiesce.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *     signal quiesce handler
  *
diff --git a/drivers/s390/char/sclp_rw.c b/drivers/s390/char/sclp_rw.c
index 91b26df5227d..44594a492553 100644
--- a/drivers/s390/char/sclp_rw.c
+++ b/drivers/s390/char/sclp_rw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * driver: reading from and writing to system console on S/390 via SCLP
  *
diff --git a/drivers/s390/char/sclp_rw.h b/drivers/s390/char/sclp_rw.h
index e3b0290995ba..a2eb22f67393 100644
--- a/drivers/s390/char/sclp_rw.h
+++ b/drivers/s390/char/sclp_rw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * interface to the SCLP-read/write driver
  *
diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c
index 7cdd13dd7be1..8e0b69a2f11a 100644
--- a/drivers/s390/char/sclp_sdias.c
+++ b/drivers/s390/char/sclp_sdias.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SCLP "store data in absolute storage"
  *
diff --git a/drivers/s390/char/sclp_sdias.h b/drivers/s390/char/sclp_sdias.h
index f2431c414150..bc36cf881010 100644
--- a/drivers/s390/char/sclp_sdias.h
+++ b/drivers/s390/char/sclp_sdias.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SCLP "store data in absolute storage"
  *
diff --git a/drivers/s390/char/sclp_tty.c b/drivers/s390/char/sclp_tty.c
index 236b736ae136..1cceefdc03e0 100644
--- a/drivers/s390/char/sclp_tty.c
+++ b/drivers/s390/char/sclp_tty.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    SCLP line mode terminal driver.
  *
@@ -217,11 +218,8 @@ static int sclp_tty_write_string(const unsigned char *str, int count, int may_fa
 	/* Setup timer to output current console buffer after 1/10 second */
 	if (sclp_ttybuf && sclp_chars_in_buffer(sclp_ttybuf) &&
 	    !timer_pending(&sclp_tty_timer)) {
-		init_timer(&sclp_tty_timer);
-		sclp_tty_timer.function = sclp_tty_timeout;
-		sclp_tty_timer.data = 0UL;
-		sclp_tty_timer.expires = jiffies + HZ/10;
-		add_timer(&sclp_tty_timer);
+		setup_timer(&sclp_tty_timer, sclp_tty_timeout, 0UL);
+		mod_timer(&sclp_tty_timer, jiffies + HZ / 10);
 	}
 	spin_unlock_irqrestore(&sclp_tty_lock, flags);
 out:
diff --git a/drivers/s390/char/sclp_tty.h b/drivers/s390/char/sclp_tty.h
index c8773421c31f..0fa2d5971d0f 100644
--- a/drivers/s390/char/sclp_tty.h
+++ b/drivers/s390/char/sclp_tty.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    interface to the SCLP-read/write driver
  *
diff --git a/drivers/s390/char/sclp_vt220.c b/drivers/s390/char/sclp_vt220.c
index 095481d32236..e84395d71389 100644
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SCLP VT220 terminal driver.
  *
diff --git a/drivers/s390/char/tape.h b/drivers/s390/char/tape.h
index ea664dd4f56d..8bec5f9ea92c 100644
--- a/drivers/s390/char/tape.h
+++ b/drivers/s390/char/tape.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    tape device driver for 3480/3490E/3590 tapes.
  *
@@ -128,6 +129,7 @@ struct tape_request {
 	int options;			/* options for execution. */
 	int retries;			/* retry counter for error recovery. */
 	int rescnt;			/* residual count from devstat. */
+	struct timer_list timer;	/* timer for std_assign_timeout(). */
 
 	/* Callback for delivering final status. */
 	void (*callback)(struct tape_request *, void *);
diff --git a/drivers/s390/char/tape_3590.h b/drivers/s390/char/tape_3590.h
index 36b759e89d22..b398d8a3ed3c 100644
--- a/drivers/s390/char/tape_3590.h
+++ b/drivers/s390/char/tape_3590.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    tape device discipline for 3590 tapes.
  *
diff --git a/drivers/s390/char/tape_char.c b/drivers/s390/char/tape_char.c
index 46ac1164f242..fc206c9d1c56 100644
--- a/drivers/s390/char/tape_char.c
+++ b/drivers/s390/char/tape_char.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    character device frontend for tape device driver
  *
diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c
index 91c3c642c76e..e7d23048d3f0 100644
--- a/drivers/s390/char/tape_class.c
+++ b/drivers/s390/char/tape_class.c
@@ -68,9 +68,8 @@ struct tape_class_device *register_tape_dev(
 
 	tcd->char_device->owner = fops->owner;
 	tcd->char_device->ops   = fops;
-	tcd->char_device->dev   = dev;
 
-	rc = cdev_add(tcd->char_device, tcd->char_device->dev, 1);
+	rc = cdev_add(tcd->char_device, dev, 1);
 	if (rc)
 		goto fail_with_cdev;
 
diff --git a/drivers/s390/char/tape_class.h b/drivers/s390/char/tape_class.h
index a332c10d50ad..d25ac075b1ad 100644
--- a/drivers/s390/char/tape_class.h
+++ b/drivers/s390/char/tape_class.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2004   All Rights Reserved.
  *
diff --git a/drivers/s390/char/tape_proc.c b/drivers/s390/char/tape_proc.c
index 8733b232a116..faae30476f4b 100644
--- a/drivers/s390/char/tape_proc.c
+++ b/drivers/s390/char/tape_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    tape device driver for S/390 and zSeries tapes.
  *
diff --git a/drivers/s390/char/tape_std.c b/drivers/s390/char/tape_std.c
index 3478e19ae194..1f5fab617b67 100644
--- a/drivers/s390/char/tape_std.c
+++ b/drivers/s390/char/tape_std.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    standard tape device functions for ibm tapes.
  *
@@ -32,14 +33,12 @@
  * tape_std_assign
  */
 static void
-tape_std_assign_timeout(unsigned long data)
+tape_std_assign_timeout(struct timer_list *t)
 {
-	struct tape_request *	request;
-	struct tape_device *	device;
+	struct tape_request *	request = from_timer(request, t, timer);
+	struct tape_device *	device = request->device;
 	int rc;
 
-	request = (struct tape_request *) data;
-	device = request->device;
 	BUG_ON(!device);
 
 	DBF_EVENT(3, "%08x: Assignment timeout. Device busy.\n",
@@ -70,16 +69,12 @@ tape_std_assign(struct tape_device *device)
 	 * to another host (actually this shouldn't happen but it does).
 	 * So we set up a timeout for this call.
 	 */
-	init_timer_on_stack(&timeout);
-	timeout.function = tape_std_assign_timeout;
-	timeout.data     = (unsigned long) request;
-	timeout.expires  = jiffies + 2 * HZ;
-	add_timer(&timeout);
+	timer_setup(&request->timer, tape_std_assign_timeout, 0);
+	mod_timer(&timeout, jiffies + 2 * HZ);
 
 	rc = tape_do_io_interruptible(device, request);
 
-	del_timer_sync(&timeout);
-	destroy_timer_on_stack(&timeout);
+	del_timer_sync(&request->timer);
 
 	if (rc != 0) {
 		DBF_EVENT(3, "%08x: assign failed - device might be busy\n",
diff --git a/drivers/s390/char/tape_std.h b/drivers/s390/char/tape_std.h
index 8c760c036832..53ec8e2870d4 100644
--- a/drivers/s390/char/tape_std.h
+++ b/drivers/s390/char/tape_std.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    standard tape device functions for ibm tapes.
  *
diff --git a/drivers/s390/char/tty3270.h b/drivers/s390/char/tty3270.h
index 11141a8f8974..52ceed6f8408 100644
--- a/drivers/s390/char/tty3270.h
+++ b/drivers/s390/char/tty3270.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007
  *
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 7898bbcc28fc..17e411c57576 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2004, 2010
  * Interface implementation for communication with the z/VM control program
diff --git a/drivers/s390/char/vmlogrdr.c b/drivers/s390/char/vmlogrdr.c
index b19020b9efff..62559dc0169f 100644
--- a/drivers/s390/char/vmlogrdr.c
+++ b/drivers/s390/char/vmlogrdr.c
@@ -812,8 +812,7 @@ static int vmlogrdr_register_cdev(dev_t dev)
 	}
 	vmlogrdr_cdev->owner = THIS_MODULE;
 	vmlogrdr_cdev->ops = &vmlogrdr_fops;
-	vmlogrdr_cdev->dev = dev;
-	rc = cdev_add(vmlogrdr_cdev, vmlogrdr_cdev->dev, MAXMINOR);
+	rc = cdev_add(vmlogrdr_cdev, dev, MAXMINOR);
 	if (!rc)
 		return 0;
 
diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c
index 04aceb694d51..fa90ef05afc0 100644
--- a/drivers/s390/char/vmur.c
+++ b/drivers/s390/char/vmur.c
@@ -110,7 +110,7 @@ static struct urdev *urdev_alloc(struct ccw_device *cdev)
 	mutex_init(&urd->io_mutex);
 	init_waitqueue_head(&urd->wait);
 	spin_lock_init(&urd->open_lock);
-	atomic_set(&urd->ref_count,  1);
+	refcount_set(&urd->ref_count,  1);
 	urd->cdev = cdev;
 	get_device(&cdev->dev);
 	return urd;
@@ -126,7 +126,7 @@ static void urdev_free(struct urdev *urd)
 
 static void urdev_get(struct urdev *urd)
 {
-	atomic_inc(&urd->ref_count);
+	refcount_inc(&urd->ref_count);
 }
 
 static struct urdev *urdev_get_from_cdev(struct ccw_device *cdev)
@@ -159,7 +159,7 @@ static struct urdev *urdev_get_from_devno(u16 devno)
 
 static void urdev_put(struct urdev *urd)
 {
-	if (atomic_dec_and_test(&urd->ref_count))
+	if (refcount_dec_and_test(&urd->ref_count))
 		urdev_free(urd);
 }
 
@@ -892,10 +892,9 @@ static int ur_set_online(struct ccw_device *cdev)
 	}
 
 	urd->char_device->ops = &ur_fops;
-	urd->char_device->dev = MKDEV(major, minor);
 	urd->char_device->owner = ur_fops.owner;
 
-	rc = cdev_add(urd->char_device, urd->char_device->dev, 1);
+	rc = cdev_add(urd->char_device, MKDEV(major, minor), 1);
 	if (rc)
 		goto fail_free_cdev;
 	if (urd->cdev->id.cu_type == READER_PUNCH_DEVTYPE) {
@@ -946,7 +945,7 @@ static int ur_set_offline_force(struct ccw_device *cdev, int force)
 		rc = -EBUSY;
 		goto fail_urdev_put;
 	}
-	if (!force && (atomic_read(&urd->ref_count) > 2)) {
+	if (!force && (refcount_read(&urd->ref_count) > 2)) {
 		/* There is still a user of urd (e.g. ur_open) */
 		TRACE("ur_set_offline: BUSY\n");
 		rc = -EBUSY;
diff --git a/drivers/s390/char/vmur.h b/drivers/s390/char/vmur.h
index fa320ad4593d..608b0719ce17 100644
--- a/drivers/s390/char/vmur.h
+++ b/drivers/s390/char/vmur.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux driver for System z and s390 unit record devices
  * (z/VM virtual punch, reader, printer)
@@ -11,6 +12,8 @@
 #ifndef _VMUR_H_
 #define _VMUR_H_
 
+#include <linux/refcount.h>
+
 #define DEV_CLASS_UR_I 0x20 /* diag210 unit record input device class */
 #define DEV_CLASS_UR_O 0x10 /* diag210 unit record output device class */
 /*
@@ -69,7 +72,7 @@ struct urdev {
 	size_t reclen;			/* Record length for *write* CCWs */
 	int class;			/* VM device class */
 	int io_request_rc;		/* return code from I/O request */
-	atomic_t ref_count;		/* reference counter */
+	refcount_t ref_count;		/* reference counter */
 	wait_queue_head_t wait;		/* wait queue to serialize open */
 	int open_flag;			/* "urdev is open" flag */
 	spinlock_t open_lock;		/* serialize critical sections */
diff --git a/drivers/s390/cio/Makefile b/drivers/s390/cio/Makefile
index bdf47526038a..a070ef0efe65 100644
--- a/drivers/s390/cio/Makefile
+++ b/drivers/s390/cio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the S/390 common i/o drivers
 #
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index 99b5db469097..a45011e4529e 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Support for adapter interruptions
  *
diff --git a/drivers/s390/cio/blacklist.c b/drivers/s390/cio/blacklist.c
index bf7f5d4c50e1..2a3f874a21d5 100644
--- a/drivers/s390/cio/blacklist.c
+++ b/drivers/s390/cio/blacklist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *   S/390 common I/O routines -- blacklisting of specific devices
  *
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index 34b9ad6b3143..e2f7b6e93efd 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -373,6 +373,12 @@ int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv,
 		rc = -EINVAL;
 		goto error;
 	}
+	/* Check if the devices are bound to the required ccw driver. */
+	if (gdev->count && gdrv && gdrv->ccw_driver &&
+	    gdev->cdev[0]->drv != gdrv->ccw_driver) {
+		rc = -EINVAL;
+		goto error;
+	}
 
 	dev_set_name(&gdev->dev, "%s", dev_name(&gdev->cdev[0]->dev));
 	gdev->dev.groups = ccwgroup_attr_groups;
diff --git a/drivers/s390/cio/ccwreq.c b/drivers/s390/cio/ccwreq.c
index 2782100b2c07..603268a33ea1 100644
--- a/drivers/s390/cio/ccwreq.c
+++ b/drivers/s390/cio/ccwreq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Handling of internal CCW device requests.
  *
diff --git a/drivers/s390/cio/chp.h b/drivers/s390/cio/chp.h
index 0d8437b7ea72..7e80323cd261 100644
--- a/drivers/s390/cio/chp.h
+++ b/drivers/s390/cio/chp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007, 2010
  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index 321a3f765810..dda5953534b7 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_CHSC_H
 #define S390_CHSC_H
 
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 735052ecd3e5..8e7e19b9e92c 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -43,11 +43,7 @@ static DEFINE_MUTEX(on_close_mutex);
 
 static void CHSC_LOG_HEX(int level, void *data, int length)
 {
-	while (length > 0) {
-		debug_event(chsc_debug_log_id, level, data, length);
-		length -= chsc_debug_log_id->buf_size;
-		data += chsc_debug_log_id->buf_size;
-	}
+	debug_event(chsc_debug_log_id, level, data, length);
 }
 
 MODULE_AUTHOR("IBM Corporation");
diff --git a/drivers/s390/cio/chsc_sch.h b/drivers/s390/cio/chsc_sch.h
index 589ebfad6aad..ff5328b0bc8a 100644
--- a/drivers/s390/cio/chsc_sch.h
+++ b/drivers/s390/cio/chsc_sch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CHSC_SCH_H
 #define _CHSC_SCH_H
 
diff --git a/drivers/s390/cio/cio.h b/drivers/s390/cio/cio.h
index 939596d81b73..94cd813bdcfe 100644
--- a/drivers/s390/cio/cio.h
+++ b/drivers/s390/cio/cio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_CIO_H
 #define S390_CIO_H
 
diff --git a/drivers/s390/cio/cio_debug.h b/drivers/s390/cio/cio_debug.h
index e64e8278c42e..7bdbe73707c2 100644
--- a/drivers/s390/cio/cio_debug.h
+++ b/drivers/s390/cio/cio_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CIO_DEBUG_H
 #define CIO_DEBUG_H
 
@@ -22,13 +23,7 @@ extern debug_info_t *cio_debug_crw_id;
 
 static inline void CIO_HEX_EVENT(int level, void *data, int length)
 {
-	if (unlikely(!cio_debug_trace_id))
-		return;
-	while (length > 0) {
-		debug_event(cio_debug_trace_id, level, data, length);
-		length -= cio_debug_trace_id->buf_size;
-		data += cio_debug_trace_id->buf_size;
-	}
+	debug_event(cio_debug_trace_id, level, data, length);
 }
 
 #endif
diff --git a/drivers/s390/cio/cmf.c b/drivers/s390/cio/cmf.c
index 220491d27ef4..7d59230e88bb 100644
--- a/drivers/s390/cio/cmf.c
+++ b/drivers/s390/cio/cmf.c
@@ -58,8 +58,9 @@
 
 /* indices for READCMB */
 enum cmb_index {
+	avg_utilization = -1,
  /* basic and exended format: */
-	cmb_ssch_rsch_count,
+	cmb_ssch_rsch_count = 0,
 	cmb_sample_count,
 	cmb_device_connect_time,
 	cmb_function_pending_time,
@@ -215,71 +216,52 @@ struct set_schib_struct {
 	unsigned long address;
 	wait_queue_head_t wait;
 	int ret;
-	struct kref kref;
 };
 
-static void cmf_set_schib_release(struct kref *kref)
-{
-	struct set_schib_struct *set_data;
-
-	set_data = container_of(kref, struct set_schib_struct, kref);
-	kfree(set_data);
-}
-
 #define CMF_PENDING 1
+#define SET_SCHIB_TIMEOUT (10 * HZ)
 
 static int set_schib_wait(struct ccw_device *cdev, u32 mme,
-				int mbfc, unsigned long address)
+			  int mbfc, unsigned long address)
 {
-	struct set_schib_struct *set_data;
-	int ret;
+	struct set_schib_struct set_data;
+	int ret = -ENODEV;
 
 	spin_lock_irq(cdev->ccwlock);
-	if (!cdev->private->cmb) {
-		ret = -ENODEV;
+	if (!cdev->private->cmb)
 		goto out;
-	}
-	set_data = kzalloc(sizeof(struct set_schib_struct), GFP_ATOMIC);
-	if (!set_data) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	init_waitqueue_head(&set_data->wait);
-	kref_init(&set_data->kref);
-	set_data->mme = mme;
-	set_data->mbfc = mbfc;
-	set_data->address = address;
 
 	ret = set_schib(cdev, mme, mbfc, address);
 	if (ret != -EBUSY)
-		goto out_put;
+		goto out;
 
-	if (cdev->private->state != DEV_STATE_ONLINE) {
-		/* if the device is not online, don't even try again */
-		ret = -EBUSY;
-		goto out_put;
-	}
+	/* if the device is not online, don't even try again */
+	if (cdev->private->state != DEV_STATE_ONLINE)
+		goto out;
 
-	cdev->private->state = DEV_STATE_CMFCHANGE;
-	set_data->ret = CMF_PENDING;
-	cdev->private->cmb_wait = set_data;
+	init_waitqueue_head(&set_data.wait);
+	set_data.mme = mme;
+	set_data.mbfc = mbfc;
+	set_data.address = address;
+	set_data.ret = CMF_PENDING;
 
+	cdev->private->state = DEV_STATE_CMFCHANGE;
+	cdev->private->cmb_wait = &set_data;
 	spin_unlock_irq(cdev->ccwlock);
-	if (wait_event_interruptible(set_data->wait,
-				     set_data->ret != CMF_PENDING)) {
-		spin_lock_irq(cdev->ccwlock);
-		if (set_data->ret == CMF_PENDING) {
-			set_data->ret = -ERESTARTSYS;
+
+	ret = wait_event_interruptible_timeout(set_data.wait,
+					       set_data.ret != CMF_PENDING,
+					       SET_SCHIB_TIMEOUT);
+	spin_lock_irq(cdev->ccwlock);
+	if (ret <= 0) {
+		if (set_data.ret == CMF_PENDING) {
+			set_data.ret = (ret == 0) ? -ETIME : ret;
 			if (cdev->private->state == DEV_STATE_CMFCHANGE)
 				cdev->private->state = DEV_STATE_ONLINE;
 		}
-		spin_unlock_irq(cdev->ccwlock);
 	}
-	spin_lock_irq(cdev->ccwlock);
 	cdev->private->cmb_wait = NULL;
-	ret = set_data->ret;
-out_put:
-	kref_put(&set_data->kref, cmf_set_schib_release);
+	ret = set_data.ret;
 out:
 	spin_unlock_irq(cdev->ccwlock);
 	return ret;
@@ -287,28 +269,21 @@ out:
 
 void retry_set_schib(struct ccw_device *cdev)
 {
-	struct set_schib_struct *set_data;
+	struct set_schib_struct *set_data = cdev->private->cmb_wait;
 
-	set_data = cdev->private->cmb_wait;
-	if (!set_data) {
-		WARN_ON(1);
+	if (!set_data)
 		return;
-	}
-	kref_get(&set_data->kref);
+
 	set_data->ret = set_schib(cdev, set_data->mme, set_data->mbfc,
 				  set_data->address);
 	wake_up(&set_data->wait);
-	kref_put(&set_data->kref, cmf_set_schib_release);
 }
 
 static int cmf_copy_block(struct ccw_device *cdev)
 {
-	struct subchannel *sch;
-	void *reference_buf;
-	void *hw_block;
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
 	struct cmb_data *cmb_data;
-
-	sch = to_subchannel(cdev->dev.parent);
+	void *hw_block;
 
 	if (cio_update_schib(sch))
 		return -ENODEV;
@@ -323,102 +298,65 @@ static int cmf_copy_block(struct ccw_device *cdev)
 	}
 	cmb_data = cdev->private->cmb;
 	hw_block = cmb_data->hw_block;
-	if (!memcmp(cmb_data->last_block, hw_block, cmb_data->size))
-		/* No need to copy. */
-		return 0;
-	reference_buf = kzalloc(cmb_data->size, GFP_ATOMIC);
-	if (!reference_buf)
-		return -ENOMEM;
-	/* Ensure consistency of block copied from hardware. */
-	do {
-		memcpy(cmb_data->last_block, hw_block, cmb_data->size);
-		memcpy(reference_buf, hw_block, cmb_data->size);
-	} while (memcmp(cmb_data->last_block, reference_buf, cmb_data->size));
+	memcpy(cmb_data->last_block, hw_block, cmb_data->size);
 	cmb_data->last_update = get_tod_clock();
-	kfree(reference_buf);
 	return 0;
 }
 
 struct copy_block_struct {
 	wait_queue_head_t wait;
 	int ret;
-	struct kref kref;
 };
 
-static void cmf_copy_block_release(struct kref *kref)
-{
-	struct copy_block_struct *copy_block;
-
-	copy_block = container_of(kref, struct copy_block_struct, kref);
-	kfree(copy_block);
-}
-
 static int cmf_cmb_copy_wait(struct ccw_device *cdev)
 {
-	struct copy_block_struct *copy_block;
-	int ret;
-	unsigned long flags;
+	struct copy_block_struct copy_block;
+	int ret = -ENODEV;
 
-	spin_lock_irqsave(cdev->ccwlock, flags);
-	if (!cdev->private->cmb) {
-		ret = -ENODEV;
-		goto out;
-	}
-	copy_block = kzalloc(sizeof(struct copy_block_struct), GFP_ATOMIC);
-	if (!copy_block) {
-		ret = -ENOMEM;
+	spin_lock_irq(cdev->ccwlock);
+	if (!cdev->private->cmb)
 		goto out;
-	}
-	init_waitqueue_head(&copy_block->wait);
-	kref_init(&copy_block->kref);
 
 	ret = cmf_copy_block(cdev);
 	if (ret != -EBUSY)
-		goto out_put;
+		goto out;
 
-	if (cdev->private->state != DEV_STATE_ONLINE) {
-		ret = -EBUSY;
-		goto out_put;
-	}
+	if (cdev->private->state != DEV_STATE_ONLINE)
+		goto out;
+
+	init_waitqueue_head(&copy_block.wait);
+	copy_block.ret = CMF_PENDING;
 
 	cdev->private->state = DEV_STATE_CMFUPDATE;
-	copy_block->ret = CMF_PENDING;
-	cdev->private->cmb_wait = copy_block;
+	cdev->private->cmb_wait = &copy_block;
+	spin_unlock_irq(cdev->ccwlock);
 
-	spin_unlock_irqrestore(cdev->ccwlock, flags);
-	if (wait_event_interruptible(copy_block->wait,
-				     copy_block->ret != CMF_PENDING)) {
-		spin_lock_irqsave(cdev->ccwlock, flags);
-		if (copy_block->ret == CMF_PENDING) {
-			copy_block->ret = -ERESTARTSYS;
+	ret = wait_event_interruptible(copy_block.wait,
+				       copy_block.ret != CMF_PENDING);
+	spin_lock_irq(cdev->ccwlock);
+	if (ret) {
+		if (copy_block.ret == CMF_PENDING) {
+			copy_block.ret = -ERESTARTSYS;
 			if (cdev->private->state == DEV_STATE_CMFUPDATE)
 				cdev->private->state = DEV_STATE_ONLINE;
 		}
-		spin_unlock_irqrestore(cdev->ccwlock, flags);
 	}
-	spin_lock_irqsave(cdev->ccwlock, flags);
 	cdev->private->cmb_wait = NULL;
-	ret = copy_block->ret;
-out_put:
-	kref_put(&copy_block->kref, cmf_copy_block_release);
+	ret = copy_block.ret;
 out:
-	spin_unlock_irqrestore(cdev->ccwlock, flags);
+	spin_unlock_irq(cdev->ccwlock);
 	return ret;
 }
 
 void cmf_retry_copy_block(struct ccw_device *cdev)
 {
-	struct copy_block_struct *copy_block;
+	struct copy_block_struct *copy_block = cdev->private->cmb_wait;
 
-	copy_block = cdev->private->cmb_wait;
-	if (!copy_block) {
-		WARN_ON(1);
+	if (!copy_block)
 		return;
-	}
-	kref_get(&copy_block->kref);
+
 	copy_block->ret = cmf_copy_block(cdev);
 	wake_up(&copy_block->wait);
-	kref_put(&copy_block->kref, cmf_copy_block_release);
 }
 
 static void cmf_generic_reset(struct ccw_device *cdev)
@@ -650,25 +588,44 @@ static int set_cmb(struct ccw_device *cdev, u32 mme)
 	return set_schib_wait(cdev, mme, 0, offset);
 }
 
+/* calculate utilization in 0.1 percent units */
+static u64 __cmb_utilization(u64 device_connect_time, u64 function_pending_time,
+			     u64 device_disconnect_time, u64 start_time)
+{
+	u64 utilization, elapsed_time;
+
+	utilization = time_to_nsec(device_connect_time +
+				   function_pending_time +
+				   device_disconnect_time);
+
+	elapsed_time = get_tod_clock() - start_time;
+	elapsed_time = tod_to_ns(elapsed_time);
+	elapsed_time /= 1000;
+
+	return elapsed_time ? (utilization / elapsed_time) : 0;
+}
+
 static u64 read_cmb(struct ccw_device *cdev, int index)
 {
+	struct cmb_data *cmb_data;
+	unsigned long flags;
 	struct cmb *cmb;
+	u64 ret = 0;
 	u32 val;
-	int ret;
-	unsigned long flags;
-
-	ret = cmf_cmb_copy_wait(cdev);
-	if (ret < 0)
-		return 0;
 
 	spin_lock_irqsave(cdev->ccwlock, flags);
-	if (!cdev->private->cmb) {
-		ret = 0;
+	cmb_data = cdev->private->cmb;
+	if (!cmb_data)
 		goto out;
-	}
-	cmb = ((struct cmb_data *)cdev->private->cmb)->last_block;
 
+	cmb = cmb_data->hw_block;
 	switch (index) {
+	case avg_utilization:
+		ret = __cmb_utilization(cmb->device_connect_time,
+					cmb->function_pending_time,
+					cmb->device_disconnect_time,
+					cdev->private->cmb_start_time);
+		goto out;
 	case cmb_ssch_rsch_count:
 		ret = cmb->ssch_rsch_count;
 		goto out;
@@ -691,7 +648,6 @@ static u64 read_cmb(struct ccw_device *cdev, int index)
 		val = cmb->device_active_only_time;
 		break;
 	default:
-		ret = 0;
 		goto out;
 	}
 	ret = time_to_avg_nsec(val, cmb->sample_count);
@@ -729,8 +685,7 @@ static int readall_cmb(struct ccw_device *cdev, struct cmbdata *data)
 	/* we only know values before device_busy_time */
 	data->size = offsetof(struct cmbdata, device_busy_time);
 
-	/* convert to nanoseconds */
-	data->elapsed_time = (time * 1000) >> 12;
+	data->elapsed_time = tod_to_ns(time);
 
 	/* copy data to new structure */
 	data->ssch_rsch_count = cmb->ssch_rsch_count;
@@ -904,28 +859,27 @@ static int set_cmbe(struct ccw_device *cdev, u32 mme)
 	return set_schib_wait(cdev, mme, 1, mba);
 }
 
-
 static u64 read_cmbe(struct ccw_device *cdev, int index)
 {
-	struct cmbe *cmb;
 	struct cmb_data *cmb_data;
-	u32 val;
-	int ret;
 	unsigned long flags;
-
-	ret = cmf_cmb_copy_wait(cdev);
-	if (ret < 0)
-		return 0;
+	struct cmbe *cmb;
+	u64 ret = 0;
+	u32 val;
 
 	spin_lock_irqsave(cdev->ccwlock, flags);
 	cmb_data = cdev->private->cmb;
-	if (!cmb_data) {
-		ret = 0;
+	if (!cmb_data)
 		goto out;
-	}
-	cmb = cmb_data->last_block;
 
+	cmb = cmb_data->hw_block;
 	switch (index) {
+	case avg_utilization:
+		ret = __cmb_utilization(cmb->device_connect_time,
+					cmb->function_pending_time,
+					cmb->device_disconnect_time,
+					cdev->private->cmb_start_time);
+		goto out;
 	case cmb_ssch_rsch_count:
 		ret = cmb->ssch_rsch_count;
 		goto out;
@@ -954,7 +908,6 @@ static u64 read_cmbe(struct ccw_device *cdev, int index)
 		val = cmb->initial_command_response_time;
 		break;
 	default:
-		ret = 0;
 		goto out;
 	}
 	ret = time_to_avg_nsec(val, cmb->sample_count);
@@ -991,8 +944,7 @@ static int readall_cmbe(struct ccw_device *cdev, struct cmbdata *data)
 	/* we only know values before device_busy_time */
 	data->size = offsetof(struct cmbdata, device_busy_time);
 
-	/* conver to nanoseconds */
-	data->elapsed_time = (time * 1000) >> 12;
+	data->elapsed_time = tod_to_ns(time);
 
 	cmb = cmb_data->last_block;
 	/* copy data to new structure */
@@ -1045,19 +997,15 @@ static ssize_t cmb_show_avg_sample_interval(struct device *dev,
 					    struct device_attribute *attr,
 					    char *buf)
 {
-	struct ccw_device *cdev;
-	long interval;
+	struct ccw_device *cdev = to_ccwdev(dev);
 	unsigned long count;
-	struct cmb_data *cmb_data;
+	long interval;
 
-	cdev = to_ccwdev(dev);
 	count = cmf_read(cdev, cmb_sample_count);
 	spin_lock_irq(cdev->ccwlock);
-	cmb_data = cdev->private->cmb;
 	if (count) {
-		interval = cmb_data->last_update -
-			cdev->private->cmb_start_time;
-		interval = (interval * 1000) >> 12;
+		interval = get_tod_clock() - cdev->private->cmb_start_time;
+		interval = tod_to_ns(interval);
 		interval /= count;
 	} else
 		interval = -1;
@@ -1069,27 +1017,9 @@ static ssize_t cmb_show_avg_utilization(struct device *dev,
 					struct device_attribute *attr,
 					char *buf)
 {
-	struct cmbdata data;
-	u64 utilization;
-	unsigned long t, u;
-	int ret;
-
-	ret = cmf_readall(to_ccwdev(dev), &data);
-	if (ret == -EAGAIN || ret == -ENODEV)
-		/* No data (yet/currently) available to use for calculation. */
-		return sprintf(buf, "n/a\n");
-	else if (ret)
-		return ret;
-
-	utilization = data.device_connect_time +
-		      data.function_pending_time +
-		      data.device_disconnect_time;
-
-	/* calculate value in 0.1 percent units */
-	t = data.elapsed_time / 1000;
-	u = utilization / t;
+	unsigned long u = cmf_read(to_ccwdev(dev), avg_utilization);
 
-	return sprintf(buf, "%02ld.%01ld%%\n", u/ 10, u - (u/ 10) * 10);
+	return sprintf(buf, "%02lu.%01lu%%\n", u / 10, u % 10);
 }
 
 #define cmf_attr(name) \
diff --git a/drivers/s390/cio/crw.c b/drivers/s390/cio/crw.c
index 3d3cd402b376..fc285ca41141 100644
--- a/drivers/s390/cio/crw.c
+++ b/drivers/s390/cio/crw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *   Channel report handling code
  *
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index c9f3fb39ebeb..30357cbf350a 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CSS_H
 #define _CSS_H
 
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 489b583f263d..e5c32f4b5287 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1225,10 +1225,16 @@ static int device_is_disconnected(struct ccw_device *cdev)
 static int recovery_check(struct device *dev, void *data)
 {
 	struct ccw_device *cdev = to_ccwdev(dev);
+	struct subchannel *sch;
 	int *redo = data;
 
 	spin_lock_irq(cdev->ccwlock);
 	switch (cdev->private->state) {
+	case DEV_STATE_ONLINE:
+		sch = to_subchannel(cdev->dev.parent);
+		if ((sch->schib.pmcw.pam & sch->opm) == sch->vpm)
+			break;
+		/* fall through */
 	case DEV_STATE_DISCONNECTED:
 		CIO_MSG_EVENT(3, "recovery: trigger 0.%x.%04x\n",
 			      cdev->private->dev_id.ssid,
@@ -1260,7 +1266,7 @@ static void recovery_work_func(struct work_struct *unused)
 		}
 		spin_unlock_irq(&recovery_lock);
 	} else
-		CIO_MSG_EVENT(4, "recovery: end\n");
+		CIO_MSG_EVENT(3, "recovery: end\n");
 }
 
 static DECLARE_WORK(recovery_work, recovery_work_func);
@@ -1274,11 +1280,11 @@ static void recovery_func(unsigned long data)
 	schedule_work(&recovery_work);
 }
 
-static void ccw_device_schedule_recovery(void)
+void ccw_device_schedule_recovery(void)
 {
 	unsigned long flags;
 
-	CIO_MSG_EVENT(4, "recovery: schedule\n");
+	CIO_MSG_EVENT(3, "recovery: schedule\n");
 	spin_lock_irqsave(&recovery_lock, flags);
 	if (!timer_pending(&recovery_timer) || (recovery_phase != 0)) {
 		recovery_phase = 0;
diff --git a/drivers/s390/cio/device.h b/drivers/s390/cio/device.h
index ec497af99dd8..b37c22adcc7a 100644
--- a/drivers/s390/cio/device.h
+++ b/drivers/s390/cio/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_DEVICE_H
 #define S390_DEVICE_H
 
@@ -134,6 +135,7 @@ void ccw_device_set_disconnected(struct ccw_device *cdev);
 void ccw_device_set_notoper(struct ccw_device *cdev);
 
 void ccw_device_set_timeout(struct ccw_device *, int);
+void ccw_device_schedule_recovery(void);
 
 /* Channel measurement facility related */
 void retry_set_schib(struct ccw_device *cdev);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 12016e32e519..f98ea674c3d8 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -476,6 +476,17 @@ static void create_fake_irb(struct irb *irb, int type)
 	}
 }
 
+static void ccw_device_handle_broken_paths(struct ccw_device *cdev)
+{
+	struct subchannel *sch = to_subchannel(cdev->dev.parent);
+	u8 broken_paths = (sch->schib.pmcw.pam & sch->opm) ^ sch->vpm;
+
+	if (broken_paths && (cdev->private->path_broken_mask != broken_paths))
+		ccw_device_schedule_recovery();
+
+	cdev->private->path_broken_mask = broken_paths;
+}
+
 void ccw_device_verify_done(struct ccw_device *cdev, int err)
 {
 	struct subchannel *sch;
@@ -508,6 +519,7 @@ callback:
 			memset(&cdev->private->irb, 0, sizeof(struct irb));
 		}
 		ccw_device_report_path_events(cdev);
+		ccw_device_handle_broken_paths(cdev);
 		break;
 	case -ETIME:
 	case -EUSERS:
diff --git a/drivers/s390/cio/device_id.c b/drivers/s390/cio/device_id.c
index d4fa30541a33..f6df83a9dfbb 100644
--- a/drivers/s390/cio/device_id.c
+++ b/drivers/s390/cio/device_id.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  CCW device SENSE ID I/O handling.
  *
diff --git a/drivers/s390/cio/device_pgid.c b/drivers/s390/cio/device_pgid.c
index da246b67edfe..d30a3babf176 100644
--- a/drivers/s390/cio/device_pgid.c
+++ b/drivers/s390/cio/device_pgid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  CCW device PGID and path verification I/O handling.
  *
diff --git a/drivers/s390/cio/device_status.c b/drivers/s390/cio/device_status.c
index 9bc3512374c9..7d5c7892b2c4 100644
--- a/drivers/s390/cio/device_status.c
+++ b/drivers/s390/cio/device_status.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2002
  *    Author(s): Cornelia Huck (cornelia.huck@de.ibm.com)
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index 0f11f3bcac82..d14795f7110b 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -43,13 +43,7 @@ static debug_info_t *eadm_debug;
 
 static void EADM_LOG_HEX(int level, void *data, int length)
 {
-	if (!debug_level_enabled(eadm_debug, level))
-		return;
-	while (length > 0) {
-		debug_event(eadm_debug, level, data, length);
-		length -= eadm_debug->buf_size;
-		data += eadm_debug->buf_size;
-	}
+	debug_event(eadm_debug, level, data, length);
 }
 
 static void orb_init(union orb *orb)
diff --git a/drivers/s390/cio/eadm_sch.h b/drivers/s390/cio/eadm_sch.h
index 9664e4653f98..390ab5a6b72f 100644
--- a/drivers/s390/cio/eadm_sch.h
+++ b/drivers/s390/cio/eadm_sch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef EADM_SCH_H
 #define EADM_SCH_H
 
diff --git a/drivers/s390/cio/fcx.c b/drivers/s390/cio/fcx.c
index ca5e9bb9d458..99c900cc3e5b 100644
--- a/drivers/s390/cio/fcx.c
+++ b/drivers/s390/cio/fcx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Functions for assembling fcx enabled I/O control blocks.
  *
diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c
index b3e06a7b9480..835de44dbbcc 100644
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007, 2012
  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
diff --git a/drivers/s390/cio/idset.h b/drivers/s390/cio/idset.h
index 89a787790888..a3ece8d8091a 100644
--- a/drivers/s390/cio/idset.h
+++ b/drivers/s390/cio/idset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007, 2012
  *    Author(s): Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 220f49145b2f..af571d8d6925 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_IO_SCH_H
 #define S390_IO_SCH_H
 
@@ -131,6 +132,8 @@ struct ccw_device_private {
 				   not operable */
 	u8 path_gone_mask;	/* mask of paths, that became unavailable */
 	u8 path_new_mask;	/* mask of paths, that became available */
+	u8 path_broken_mask;	/* mask of paths, which were found to be
+				   unusable */
 	struct {
 		unsigned int fast:1;	/* post with "channel end" */
 		unsigned int repall:1;	/* report every interrupt status */
diff --git a/drivers/s390/cio/ioasm.c b/drivers/s390/cio/ioasm.c
index 4182f60124da..4fa9ee1d09fa 100644
--- a/drivers/s390/cio/ioasm.c
+++ b/drivers/s390/cio/ioasm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Channel subsystem I/O instructions.
  */
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index b31ee6bff1e4..35ad4ddd61e0 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef S390_CIO_IOASM_H
 #define S390_CIO_IOASM_H
 
diff --git a/drivers/s390/cio/itcw.c b/drivers/s390/cio/itcw.c
index 358ee16d10a2..deaf59f93326 100644
--- a/drivers/s390/cio/itcw.c
+++ b/drivers/s390/cio/itcw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Functions for incremental construction of fcx enabled I/O control blocks.
  *
diff --git a/drivers/s390/cio/orb.h b/drivers/s390/cio/orb.h
index 7a640530e7f5..a2d3778b2c95 100644
--- a/drivers/s390/cio/orb.h
+++ b/drivers/s390/cio/orb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Orb related data structures.
  *
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 7e70f9298cc1..29d6b5222f1c 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2000, 2009
  * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
diff --git a/drivers/s390/cio/qdio_debug.c b/drivers/s390/cio/qdio_debug.c
index b6fc147f83d8..68a82f3e2e92 100644
--- a/drivers/s390/cio/qdio_debug.c
+++ b/drivers/s390/cio/qdio_debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright IBM Corp. 2008, 2009
  *
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
index 1d595d17bf11..f85f5fa7cefc 100644
--- a/drivers/s390/cio/qdio_debug.h
+++ b/drivers/s390/cio/qdio_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2008
  *
@@ -33,11 +34,7 @@ extern debug_info_t *qdio_dbf_error;
 
 static inline void DBF_HEX(void *addr, int len)
 {
-	while (len > 0) {
-		debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
-		len -= qdio_dbf_setup->buf_size;
-		addr += qdio_dbf_setup->buf_size;
-	}
+	debug_event(qdio_dbf_setup, DBF_ERR, addr, len);
 }
 
 #define DBF_ERROR(text...) \
@@ -49,11 +46,7 @@ static inline void DBF_HEX(void *addr, int len)
 
 static inline void DBF_ERROR_HEX(void *addr, int len)
 {
-	while (len > 0) {
-		debug_event(qdio_dbf_error, DBF_ERR, addr, len);
-		len -= qdio_dbf_error->buf_size;
-		addr += qdio_dbf_error->buf_size;
-	}
+	debug_event(qdio_dbf_error, DBF_ERR, addr, len);
 }
 
 #define DBF_DEV_EVENT(level, device, text...) \
@@ -68,11 +61,7 @@ static inline void DBF_ERROR_HEX(void *addr, int len)
 static inline void DBF_DEV_HEX(struct qdio_irq *dev, void *addr,
 			       int len, int level)
 {
-	while (len > 0) {
-		debug_event(dev->debug_area, level, addr, len);
-		len -= dev->debug_area->buf_size;
-		addr += dev->debug_area->buf_size;
-	}
+	debug_event(dev->debug_area, level, addr, len);
 }
 
 int qdio_allocate_dbf(struct qdio_initialize *init_data,
diff --git a/drivers/s390/cio/qdio_thinint.c b/drivers/s390/cio/qdio_thinint.c
index c61164f4528e..0787b587e4b8 100644
--- a/drivers/s390/cio/qdio_thinint.c
+++ b/drivers/s390/cio/qdio_thinint.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2000, 2009
  * Author(s): Utz Bacher <utz.bacher@de.ibm.com>
@@ -56,10 +57,8 @@ static u32 *get_indicator(void)
 	int i;
 
 	for (i = 0; i < TIQDIO_NR_NONSHARED_IND; i++)
-		if (!atomic_read(&q_indicators[i].count)) {
-			atomic_set(&q_indicators[i].count, 1);
+		if (!atomic_cmpxchg(&q_indicators[i].count, 0, 1))
 			return &q_indicators[i].ind;
-		}
 
 	/* use the shared indicator */
 	atomic_inc(&q_indicators[TIQDIO_SHARED_IND].count);
@@ -68,13 +67,11 @@ static u32 *get_indicator(void)
 
 static void put_indicator(u32 *addr)
 {
-	int i;
+	struct indicator_t *ind = container_of(addr, struct indicator_t, ind);
 
 	if (!addr)
 		return;
-	i = ((unsigned long)addr - (unsigned long)q_indicators) /
-		sizeof(struct indicator_t);
-	atomic_dec(&q_indicators[i].count);
+	atomic_dec(&ind->count);
 }
 
 void tiqdio_add_input_queues(struct qdio_irq *irq_ptr)
diff --git a/drivers/s390/cio/trace.c b/drivers/s390/cio/trace.c
index 8e706669ac8b..e331cd97e83b 100644
--- a/drivers/s390/cio/trace.c
+++ b/drivers/s390/cio/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tracepoint definitions for s390_cio
  *
diff --git a/drivers/s390/cio/trace.h b/drivers/s390/cio/trace.h
index 5b807a09f21b..1f8d1c1e566d 100644
--- a/drivers/s390/cio/trace.h
+++ b/drivers/s390/cio/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Tracepoint header for the s390 Common I/O layer (CIO)
  *
diff --git a/drivers/s390/cio/vfio_ccw_cp.c b/drivers/s390/cio/vfio_ccw_cp.c
index 5ccfdc80d0ec..d9a2fffd034b 100644
--- a/drivers/s390/cio/vfio_ccw_cp.c
+++ b/drivers/s390/cio/vfio_ccw_cp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * channel program interfaces
  *
@@ -105,7 +106,10 @@ static int pfn_array_alloc_pin(struct pfn_array *pa, struct device *mdev,
 {
 	int ret = 0;
 
-	if (!len || pa->pa_nr)
+	if (!len)
+		return 0;
+
+	if (pa->pa_nr)
 		return -EINVAL;
 
 	pa->pa_iova = iova;
@@ -329,6 +333,8 @@ static void ccwchain_cda_free(struct ccwchain *chain, int idx)
 {
 	struct ccw1 *ccw = chain->ch_ccw + idx;
 
+	if (ccw_is_test(ccw) || ccw_is_noop(ccw) || ccw_is_tic(ccw))
+		return;
 	if (!ccw->count)
 		return;
 
@@ -501,6 +507,16 @@ static int ccwchain_fetch_direct(struct ccwchain *chain,
 
 	ccw = chain->ch_ccw + idx;
 
+	if (!ccw->count) {
+		/*
+		 * We just want the translation result of any direct ccw
+		 * to be an IDA ccw, so let's add the IDA flag for it.
+		 * Although the flag will be ignored by firmware.
+		 */
+		ccw->flags |= CCW_FLAG_IDA;
+		return 0;
+	}
+
 	/*
 	 * Pin data page(s) in memory.
 	 * The number of pages actually is the count of the idaws which will be
@@ -541,6 +557,9 @@ static int ccwchain_fetch_idal(struct ccwchain *chain,
 
 	ccw = chain->ch_ccw + idx;
 
+	if (!ccw->count)
+		return 0;
+
 	/* Calculate size of idaws. */
 	ret = copy_from_iova(cp->mdev, &idaw_iova, ccw->cda, sizeof(idaw_iova));
 	if (ret)
@@ -569,10 +588,6 @@ static int ccwchain_fetch_idal(struct ccwchain *chain,
 
 	for (i = 0; i < idaw_nr; i++) {
 		idaw_iova = *(idaws + i);
-		if (IS_ERR_VALUE(idaw_iova)) {
-			ret = -EFAULT;
-			goto out_free_idaws;
-		}
 
 		ret = pfn_array_alloc_pin(pat->pat_pa + i, cp->mdev,
 					  idaw_iova, 1);
diff --git a/drivers/s390/cio/vfio_ccw_cp.h b/drivers/s390/cio/vfio_ccw_cp.h
index 7a1996b3b36d..a4b74fb1aa57 100644
--- a/drivers/s390/cio/vfio_ccw_cp.h
+++ b/drivers/s390/cio/vfio_ccw_cp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * channel program interfaces
  *
diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
index 80a0559cd7ce..c30420c517b1 100644
--- a/drivers/s390/cio/vfio_ccw_fsm.c
+++ b/drivers/s390/cio/vfio_ccw_fsm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Finite state machine for vfio-ccw device handling
  *
diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index a66a317f3e4f..41eeb57d68a3 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Physical device callbacks for vfio_ccw
  *
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
index fc0f01c16ef9..78a66d96756b 100644
--- a/drivers/s390/cio/vfio_ccw_private.h
+++ b/drivers/s390/cio/vfio_ccw_private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Private stuff for vfio_ccw driver
  *
diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile
index be36f1010d75..b59af548ed1c 100644
--- a/drivers/s390/crypto/Makefile
+++ b/drivers/s390/crypto/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # S/390 crypto devices
 #
diff --git a/drivers/s390/crypto/ap_asm.h b/drivers/s390/crypto/ap_asm.h
index cd350345b3d2..16b59ce5e01d 100644
--- a/drivers/s390/crypto/ap_asm.h
+++ b/drivers/s390/crypto/ap_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2016
  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -116,6 +117,49 @@ static inline int ap_qci(void *config)
 	return reg1;
 }
 
+/*
+ * union ap_qact_ap_info - used together with the
+ * ap_aqic() function to provide a convenient way
+ * to handle the ap info needed by the qact function.
+ */
+union ap_qact_ap_info {
+	unsigned long val;
+	struct {
+		unsigned int	  : 3;
+		unsigned int mode : 3;
+		unsigned int	  : 26;
+		unsigned int cat  : 8;
+		unsigned int	  : 8;
+		unsigned char ver[2];
+	};
+};
+
+/**
+ * ap_qact(): Query AP combatibility type.
+ * @qid: The AP queue number
+ * @apinfo: On input the info about the AP queue. On output the
+ *	    alternate AP queue info provided by the qact function
+ *	    in GR2 is stored in.
+ *
+ * Returns AP queue status. Check response_code field for failures.
+ */
+static inline struct ap_queue_status ap_qact(ap_qid_t qid, int ifbit,
+					     union ap_qact_ap_info *apinfo)
+{
+	register unsigned long reg0 asm ("0") = qid | (5UL << 24)
+		| ((ifbit & 0x01) << 22);
+	register unsigned long reg1_in asm ("1") = apinfo->val;
+	register struct ap_queue_status reg1_out asm ("1");
+	register unsigned long reg2 asm ("2") = 0;
+
+	asm volatile(
+		".long 0xb2af0000"		/* PQAP(QACT) */
+		: "+d" (reg0), "+d" (reg1_in), "=d" (reg1_out), "+d" (reg2)
+		: : "cc");
+	apinfo->val = reg2;
+	return reg1_out;
+}
+
 /**
  * ap_nqap(): Send message to adjunct processor queue.
  * @qid: The AP queue number
diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c
index 5f0be2040272..8b5658b0bec3 100644
--- a/drivers/s390/crypto/ap_bus.c
+++ b/drivers/s390/crypto/ap_bus.c
@@ -176,6 +176,18 @@ static int ap_apft_available(void)
 	return test_facility(15);
 }
 
+/*
+ * ap_qact_available(): Test if the PQAP(QACT) subfunction is available.
+ *
+ * Returns 1 if the QACT subfunction is available.
+ */
+static inline int ap_qact_available(void)
+{
+	if (ap_configuration)
+		return ap_configuration->qact;
+	return 0;
+}
+
 /**
  * ap_test_queue(): Test adjunct processor queue.
  * @qid: The AP queue number
@@ -988,6 +1000,47 @@ static int ap_select_domain(void)
 }
 
 /*
+ * This function checks the type and returns either 0 for not
+ * supported or the highest compatible type value (which may
+ * include the input type value).
+ */
+static int ap_get_compatible_type(ap_qid_t qid, int rawtype, unsigned int func)
+{
+	int comp_type = 0;
+
+	/* < CEX2A is not supported */
+	if (rawtype < AP_DEVICE_TYPE_CEX2A)
+		return 0;
+	/* up to CEX6 known and fully supported */
+	if (rawtype <= AP_DEVICE_TYPE_CEX6)
+		return rawtype;
+	/*
+	 * unknown new type > CEX6, check for compatibility
+	 * to the highest known and supported type which is
+	 * currently CEX6 with the help of the QACT function.
+	 */
+	if (ap_qact_available()) {
+		struct ap_queue_status status;
+		union ap_qact_ap_info apinfo = {0};
+
+		apinfo.mode = (func >> 26) & 0x07;
+		apinfo.cat = AP_DEVICE_TYPE_CEX6;
+		status = ap_qact(qid, 0, &apinfo);
+		if (status.response_code == AP_RESPONSE_NORMAL
+		    && apinfo.cat >= AP_DEVICE_TYPE_CEX2A
+		    && apinfo.cat <= AP_DEVICE_TYPE_CEX6)
+			comp_type = apinfo.cat;
+	}
+	if (!comp_type)
+		AP_DBF(DBF_WARN, "queue=%02x.%04x unable to map type %d\n",
+		       AP_QID_CARD(qid), AP_QID_QUEUE(qid), rawtype);
+	else if (comp_type != rawtype)
+		AP_DBF(DBF_INFO, "queue=%02x.%04x map type %d to %d\n",
+		       AP_QID_CARD(qid), AP_QID_QUEUE(qid), rawtype, comp_type);
+	return comp_type;
+}
+
+/*
  * helper function to be used with bus_find_dev
  * matches for the card device with the given id
  */
@@ -1014,8 +1067,8 @@ static void ap_scan_bus(struct work_struct *unused)
 	struct ap_card *ac;
 	struct device *dev;
 	ap_qid_t qid;
-	int depth = 0, type = 0;
-	unsigned int functions = 0;
+	int comp_type, depth = 0, type = 0;
+	unsigned int func = 0;
 	int rc, id, dom, borked, domains, defdomdevs = 0;
 
 	AP_DBF(DBF_DEBUG, "ap_scan_bus running\n");
@@ -1066,12 +1119,12 @@ static void ap_scan_bus(struct work_struct *unused)
 				}
 				continue;
 			}
-			rc = ap_query_queue(qid, &depth, &type, &functions);
+			rc = ap_query_queue(qid, &depth, &type, &func);
 			if (dev) {
 				spin_lock_bh(&aq->lock);
 				if (rc == -ENODEV ||
 				    /* adapter reconfiguration */
-				    (ac && ac->functions != functions))
+				    (ac && ac->functions != func))
 					aq->state = AP_STATE_BORKED;
 				borked = aq->state == AP_STATE_BORKED;
 				spin_unlock_bh(&aq->lock);
@@ -1087,11 +1140,14 @@ static void ap_scan_bus(struct work_struct *unused)
 			}
 			if (rc)
 				continue;
-			/* new queue device needed */
+			/* a new queue device is needed, check out comp type */
+			comp_type = ap_get_compatible_type(qid, type, func);
+			if (!comp_type)
+				continue;
+			/* maybe a card device needs to be created first */
 			if (!ac) {
-				/* but first create the card device */
-				ac = ap_card_create(id, depth,
-						    type, functions);
+				ac = ap_card_create(id, depth, type,
+						    comp_type, func);
 				if (!ac)
 					continue;
 				ac->ap_dev.device.bus = &ap_bus_type;
@@ -1109,7 +1165,7 @@ static void ap_scan_bus(struct work_struct *unused)
 				get_device(&ac->ap_dev.device);
 			}
 			/* now create the new queue device */
-			aq = ap_queue_create(qid, type);
+			aq = ap_queue_create(qid, comp_type);
 			if (!aq)
 				continue;
 			aq->card = ac;
diff --git a/drivers/s390/crypto/ap_bus.h b/drivers/s390/crypto/ap_bus.h
index 754cf2223cfb..3a0e19d87e7c 100644
--- a/drivers/s390/crypto/ap_bus.h
+++ b/drivers/s390/crypto/ap_bus.h
@@ -250,8 +250,8 @@ void ap_queue_remove(struct ap_queue *aq);
 void ap_queue_suspend(struct ap_device *ap_dev);
 void ap_queue_resume(struct ap_device *ap_dev);
 
-struct ap_card *ap_card_create(int id, int queue_depth, int device_type,
-			       unsigned int device_functions);
+struct ap_card *ap_card_create(int id, int queue_depth, int raw_device_type,
+			       int comp_device_type, unsigned int functions);
 
 int ap_module_init(void);
 void ap_module_exit(void);
diff --git a/drivers/s390/crypto/ap_card.c b/drivers/s390/crypto/ap_card.c
index 836efac96813..97a8cf578116 100644
--- a/drivers/s390/crypto/ap_card.c
+++ b/drivers/s390/crypto/ap_card.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2016
  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -170,22 +171,20 @@ static void ap_card_device_release(struct device *dev)
 	kfree(ac);
 }
 
-struct ap_card *ap_card_create(int id, int queue_depth, int device_type,
-			       unsigned int functions)
+struct ap_card *ap_card_create(int id, int queue_depth, int raw_type,
+			       int comp_type, unsigned int functions)
 {
 	struct ap_card *ac;
 
 	ac = kzalloc(sizeof(*ac), GFP_KERNEL);
 	if (!ac)
 		return NULL;
+	INIT_LIST_HEAD(&ac->list);
 	INIT_LIST_HEAD(&ac->queues);
 	ac->ap_dev.device.release = ap_card_device_release;
 	ac->ap_dev.device.type = &ap_card_type;
-	ac->ap_dev.device_type = device_type;
-	/* CEX6 toleration: map to CEX5 */
-	if (device_type == AP_DEVICE_TYPE_CEX6)
-		ac->ap_dev.device_type = AP_DEVICE_TYPE_CEX5;
-	ac->raw_hwtype = device_type;
+	ac->ap_dev.device_type = comp_type;
+	ac->raw_hwtype = raw_type;
 	ac->queue_depth = queue_depth;
 	ac->functions = functions;
 	ac->id = id;
diff --git a/drivers/s390/crypto/ap_debug.h b/drivers/s390/crypto/ap_debug.h
index 78dbff842dae..6a9d77c75ec3 100644
--- a/drivers/s390/crypto/ap_debug.h
+++ b/drivers/s390/crypto/ap_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2016
  *  Author(s): Harald Freudenberger <freude@de.ibm.com>
diff --git a/drivers/s390/crypto/ap_queue.c b/drivers/s390/crypto/ap_queue.c
index 56b96edffd5b..a550d40921e7 100644
--- a/drivers/s390/crypto/ap_queue.c
+++ b/drivers/s390/crypto/ap_queue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2016
  * Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
@@ -626,13 +627,11 @@ struct ap_queue *ap_queue_create(ap_qid_t qid, int device_type)
 	aq->ap_dev.device.release = ap_queue_device_release;
 	aq->ap_dev.device.type = &ap_queue_type;
 	aq->ap_dev.device_type = device_type;
-	/* CEX6 toleration: map to CEX5 */
-	if (device_type == AP_DEVICE_TYPE_CEX6)
-		aq->ap_dev.device_type = AP_DEVICE_TYPE_CEX5;
 	aq->qid = qid;
 	aq->state = AP_STATE_RESET_START;
 	aq->interrupt = AP_INTR_DISABLED;
 	spin_lock_init(&aq->lock);
+	INIT_LIST_HEAD(&aq->list);
 	INIT_LIST_HEAD(&aq->pendingq);
 	INIT_LIST_HEAD(&aq->requestq);
 	setup_timer(&aq->timeout, ap_request_timeout, (unsigned long) aq);
diff --git a/drivers/s390/crypto/pkey_api.c b/drivers/s390/crypto/pkey_api.c
index f61fa47135a6..8dda5bb34a2f 100644
--- a/drivers/s390/crypto/pkey_api.c
+++ b/drivers/s390/crypto/pkey_api.c
@@ -125,10 +125,9 @@ static int alloc_and_prep_cprbmem(size_t paramblen,
 	 * allocate consecutive memory for request CPRB, request param
 	 * block, reply CPRB and reply param block
 	 */
-	cprbmem = kmalloc(2 * cprbplusparamblen, GFP_KERNEL);
+	cprbmem = kzalloc(2 * cprbplusparamblen, GFP_KERNEL);
 	if (!cprbmem)
 		return -ENOMEM;
-	memset(cprbmem, 0, 2 * cprbplusparamblen);
 
 	preqcblk = (struct CPRBX *) cprbmem;
 	prepcblk = (struct CPRBX *) (cprbmem + cprbplusparamblen);
diff --git a/drivers/s390/crypto/zcrypt_api.h b/drivers/s390/crypto/zcrypt_api.h
index 6c94efd23eac..73541a798db7 100644
--- a/drivers/s390/crypto/zcrypt_api.h
+++ b/drivers/s390/crypto/zcrypt_api.h
@@ -76,6 +76,7 @@ struct ica_z90_status {
 #define ZCRYPT_CEX3A		8
 #define ZCRYPT_CEX4	       10
 #define ZCRYPT_CEX5	       11
+#define ZCRYPT_CEX6	       12
 
 /**
  * Large random numbers are pulled in 4096 byte chunks from the crypto cards
diff --git a/drivers/s390/crypto/zcrypt_cex4.c b/drivers/s390/crypto/zcrypt_cex4.c
index 4e91163d70a6..e2eebc775a37 100644
--- a/drivers/s390/crypto/zcrypt_cex4.c
+++ b/drivers/s390/crypto/zcrypt_cex4.c
@@ -45,6 +45,8 @@ static struct ap_device_id zcrypt_cex4_card_ids[] = {
 	  .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
 	{ .dev_type = AP_DEVICE_TYPE_CEX5,
 	  .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
+	{ .dev_type = AP_DEVICE_TYPE_CEX6,
+	  .match_flags = AP_DEVICE_ID_MATCH_CARD_TYPE },
 	{ /* end of list */ },
 };
 
@@ -55,6 +57,8 @@ static struct ap_device_id zcrypt_cex4_queue_ids[] = {
 	  .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
 	{ .dev_type = AP_DEVICE_TYPE_CEX5,
 	  .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
+	{ .dev_type = AP_DEVICE_TYPE_CEX6,
+	  .match_flags = AP_DEVICE_ID_MATCH_QUEUE_TYPE },
 	{ /* end of list */ },
 };
 
@@ -72,17 +76,25 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
 	 * MEX_1k, MEX_2k, MEX_4k, CRT_1k, CRT_2k, CRT_4k, RNG, SECKEY
 	 */
 	static const int CEX4A_SPEED_IDX[] = {
-		5,  6,	  59,  20, 115,  581,  0,  0};
+		 14, 19, 249, 42, 228, 1458, 0, 0};
 	static const int CEX5A_SPEED_IDX[] = {
-		3,  3,	   6,	8,  32,  218,  0,  0};
+		  8,  9,  20, 18,  66,	458, 0, 0};
+	static const int CEX6A_SPEED_IDX[] = {
+		  6,  9,  20, 17,  65,	438, 0, 0};
+
 	static const int CEX4C_SPEED_IDX[] = {
-		24,  25,   82,	41, 138, 1111, 79,  8};
+		 59,  69, 308, 83, 278, 2204, 209, 40};
 	static const int CEX5C_SPEED_IDX[] = {
-		10,  14,   23,	17,  45,  242, 63,  4};
+		 24,  31,  50, 37,  90,  479,  27, 10};
+	static const int CEX6C_SPEED_IDX[] = {
+		 16,  20,  32, 27,  77,  455,  23,  9};
+
 	static const int CEX4P_SPEED_IDX[] = {
-		142, 198, 1852, 203, 331, 1563,  0,  8};
+		224, 313, 3560, 359, 605, 2827, 0, 50};
 	static const int CEX5P_SPEED_IDX[] = {
-		49,  67,  131,	52,  85,  287,	0,  4};
+		 63,  84,  156,  83, 142,  533, 0, 10};
+	static const int CEX6P_SPEED_IDX[] = {
+		 55,  70,  121,  73, 129,  522, 0,  9};
 
 	struct ap_card *ac = to_ap_card(&ap_dev->device);
 	struct zcrypt_card *zc;
@@ -99,11 +111,16 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
 			zc->user_space_type = ZCRYPT_CEX4;
 			memcpy(zc->speed_rating, CEX4A_SPEED_IDX,
 			       sizeof(CEX4A_SPEED_IDX));
-		} else {
+		} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) {
 			zc->type_string = "CEX5A";
 			zc->user_space_type = ZCRYPT_CEX5;
 			memcpy(zc->speed_rating, CEX5A_SPEED_IDX,
 			       sizeof(CEX5A_SPEED_IDX));
+		} else {
+			zc->type_string = "CEX6A";
+			zc->user_space_type = ZCRYPT_CEX6;
+			memcpy(zc->speed_rating, CEX6A_SPEED_IDX,
+			       sizeof(CEX6A_SPEED_IDX));
 		}
 		zc->min_mod_size = CEX4A_MIN_MOD_SIZE;
 		if (ap_test_bit(&ac->functions, AP_FUNC_MEX4K) &&
@@ -125,7 +142,7 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
 			zc->user_space_type = ZCRYPT_CEX3C;
 			memcpy(zc->speed_rating, CEX4C_SPEED_IDX,
 			       sizeof(CEX4C_SPEED_IDX));
-		} else {
+		} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) {
 			zc->type_string = "CEX5C";
 			/* wrong user space type, must be CEX5
 			 * just keep it for cca compatibility
@@ -133,6 +150,14 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
 			zc->user_space_type = ZCRYPT_CEX3C;
 			memcpy(zc->speed_rating, CEX5C_SPEED_IDX,
 			       sizeof(CEX5C_SPEED_IDX));
+		} else {
+			zc->type_string = "CEX6C";
+			/* wrong user space type, must be CEX6
+			 * just keep it for cca compatibility
+			 */
+			zc->user_space_type = ZCRYPT_CEX3C;
+			memcpy(zc->speed_rating, CEX6C_SPEED_IDX,
+			       sizeof(CEX6C_SPEED_IDX));
 		}
 		zc->min_mod_size = CEX4C_MIN_MOD_SIZE;
 		zc->max_mod_size = CEX4C_MAX_MOD_SIZE;
@@ -143,11 +168,16 @@ static int zcrypt_cex4_card_probe(struct ap_device *ap_dev)
 			zc->user_space_type = ZCRYPT_CEX4;
 			memcpy(zc->speed_rating, CEX4P_SPEED_IDX,
 			       sizeof(CEX4P_SPEED_IDX));
-		} else {
+		} else if (ac->ap_dev.device_type == AP_DEVICE_TYPE_CEX5) {
 			zc->type_string = "CEX5P";
 			zc->user_space_type = ZCRYPT_CEX5;
 			memcpy(zc->speed_rating, CEX5P_SPEED_IDX,
 			       sizeof(CEX5P_SPEED_IDX));
+		} else {
+			zc->type_string = "CEX6P";
+			zc->user_space_type = ZCRYPT_CEX6;
+			memcpy(zc->speed_rating, CEX6P_SPEED_IDX,
+			       sizeof(CEX6P_SPEED_IDX));
 		}
 		zc->min_mod_size = CEX4C_MIN_MOD_SIZE;
 		zc->max_mod_size = CEX4C_MAX_MOD_SIZE;
diff --git a/drivers/s390/crypto/zcrypt_cex4.h b/drivers/s390/crypto/zcrypt_cex4.h
index 719571375ccc..748390a3799b 100644
--- a/drivers/s390/crypto/zcrypt_cex4.h
+++ b/drivers/s390/crypto/zcrypt_cex4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2012
  *  Author(s): Holger Dengler <hd@linux.vnet.ibm.com>
diff --git a/drivers/s390/crypto/zcrypt_debug.h b/drivers/s390/crypto/zcrypt_debug.h
index 13e38defb6b8..241dbb5f75bf 100644
--- a/drivers/s390/crypto/zcrypt_debug.h
+++ b/drivers/s390/crypto/zcrypt_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright IBM Corp. 2016
  *  Author(s): Holger Dengler (hd@linux.vnet.ibm.com)
diff --git a/drivers/s390/crypto/zcrypt_msgtype50.c b/drivers/s390/crypto/zcrypt_msgtype50.c
index 6dd5d7c58dd0..db5bde47dfb0 100644
--- a/drivers/s390/crypto/zcrypt_msgtype50.c
+++ b/drivers/s390/crypto/zcrypt_msgtype50.c
@@ -240,8 +240,7 @@ static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_queue *zq,
 		mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
 		exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
 		inp = meb2->message + sizeof(meb2->message) - mod_len;
-	} else {
-		/* mod_len > 256 = 4096 bit RSA Key */
+	} else if (mod_len <= 512) {
 		struct type50_meb3_msg *meb3 = ap_msg->message;
 		memset(meb3, 0, sizeof(*meb3));
 		ap_msg->length = sizeof(*meb3);
@@ -251,7 +250,8 @@ static int ICAMEX_msg_to_type50MEX_msg(struct zcrypt_queue *zq,
 		mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
 		exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
 		inp = meb3->message + sizeof(meb3->message) - mod_len;
-	}
+	} else
+		return -EINVAL;
 
 	if (copy_from_user(mod, mex->n_modulus, mod_len) ||
 	    copy_from_user(exp, mex->b_key, mod_len) ||
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
index afd20cee7ea0..785620d30504 100644
--- a/drivers/s390/crypto/zcrypt_msgtype6.c
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -474,7 +474,8 @@ static int XCRB_msg_to_type6CPRB_msgX(struct ap_message *ap_msg,
 	*fcode = (msg->hdr.function_code[0] << 8) | msg->hdr.function_code[1];
 	*dom = (unsigned short *)&msg->cprbx.domain;
 
-	if (memcmp(function_code, "US", 2) == 0)
+	if (memcmp(function_code, "US", 2) == 0
+	    || memcmp(function_code, "AU", 2) == 0)
 		ap_msg->special = 1;
 	else
 		ap_msg->special = 0;
diff --git a/drivers/s390/net/Makefile b/drivers/s390/net/Makefile
index c351b07603e0..513b7ae64980 100644
--- a/drivers/s390/net/Makefile
+++ b/drivers/s390/net/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # S/390 network devices
 #
diff --git a/drivers/s390/net/ctcm_dbug.c b/drivers/s390/net/ctcm_dbug.c
index 8363f1c966ef..f7ec51db3cd6 100644
--- a/drivers/s390/net/ctcm_dbug.c
+++ b/drivers/s390/net/ctcm_dbug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copyright IBM Corp. 2001, 2007
  *	Authors:	Peter Tiedemann (ptiedem@de.ibm.com)
diff --git a/drivers/s390/net/ctcm_dbug.h b/drivers/s390/net/ctcm_dbug.h
index 47bf0501995e..675575ef162e 100644
--- a/drivers/s390/net/ctcm_dbug.h
+++ b/drivers/s390/net/ctcm_dbug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Copyright IBM Corp. 2001, 2007
  *	Authors:	Peter Tiedemann (ptiedem@de.ibm.com)
diff --git a/drivers/s390/net/ctcm_fsms.c b/drivers/s390/net/ctcm_fsms.c
index 570ae3b7adf6..1b4ee570b712 100644
--- a/drivers/s390/net/ctcm_fsms.c
+++ b/drivers/s390/net/ctcm_fsms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2001, 2007
  * Authors:	Fritz Elfert (felfert@millenux.com)
diff --git a/drivers/s390/net/ctcm_fsms.h b/drivers/s390/net/ctcm_fsms.h
index c963d04799c0..225737295cb4 100644
--- a/drivers/s390/net/ctcm_fsms.h
+++ b/drivers/s390/net/ctcm_fsms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2001, 2007
  * Authors: 	Fritz Elfert (felfert@millenux.com)
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 26363e0816fe..be9f17218531 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -1761,6 +1761,7 @@ static struct ccwgroup_driver ctcm_group_driver = {
 		.owner	= THIS_MODULE,
 		.name	= CTC_DRIVER_NAME,
 	},
+	.ccw_driver  = &ctcm_ccw_driver,
 	.setup	     = ctcm_probe_device,
 	.remove      = ctcm_remove_device,
 	.set_online  = ctcm_new_device,
diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h
index 6f4417c80247..16bdf23ee02b 100644
--- a/drivers/s390/net/ctcm_main.h
+++ b/drivers/s390/net/ctcm_main.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Copyright IBM Corp. 2001, 2007
  *	Authors:	Fritz Elfert (felfert@millenux.com)
diff --git a/drivers/s390/net/ctcm_mpc.c b/drivers/s390/net/ctcm_mpc.c
index f8be39634f03..e02f295d38a9 100644
--- a/drivers/s390/net/ctcm_mpc.c
+++ b/drivers/s390/net/ctcm_mpc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copyright IBM Corp. 2004, 2007
  *	Authors:	Belinda Thompson (belindat@us.ibm.com)
diff --git a/drivers/s390/net/ctcm_mpc.h b/drivers/s390/net/ctcm_mpc.h
index bd1b1cc54ffa..441d7b211f0f 100644
--- a/drivers/s390/net/ctcm_mpc.h
+++ b/drivers/s390/net/ctcm_mpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright IBM Corp. 2007
  * Authors:	Peter Tiedemann (ptiedem@de.ibm.com)
diff --git a/drivers/s390/net/ctcm_sysfs.c b/drivers/s390/net/ctcm_sysfs.c
index ddb0aa321339..ded1930a00b2 100644
--- a/drivers/s390/net/ctcm_sysfs.c
+++ b/drivers/s390/net/ctcm_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2007, 2007
  * Authors:	Peter Tiedemann (ptiedem@de.ibm.com)
diff --git a/drivers/s390/net/fsm.h b/drivers/s390/net/fsm.h
index a4510cf59034..16dc071a2973 100644
--- a/drivers/s390/net/fsm.h
+++ b/drivers/s390/net/fsm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FSM_H_
 #define _FSM_H_
 
diff --git a/drivers/s390/net/lcs.c b/drivers/s390/net/lcs.c
index d01b5c2a7760..e131a03262ad 100644
--- a/drivers/s390/net/lcs.c
+++ b/drivers/s390/net/lcs.c
@@ -834,13 +834,13 @@ lcs_notify_lancmd_waiters(struct lcs_card *card, struct lcs_cmd *cmd)
  * Emit buffer of a lan command.
  */
 static void
-lcs_lancmd_timeout(unsigned long data)
+lcs_lancmd_timeout(struct timer_list *t)
 {
-	struct lcs_reply *reply, *list_reply, *r;
+	struct lcs_reply *reply = from_timer(reply, t, timer);
+	struct lcs_reply *list_reply, *r;
 	unsigned long flags;
 
 	LCS_DBF_TEXT(4, trace, "timeout");
-	reply = (struct lcs_reply *) data;
 	spin_lock_irqsave(&reply->card->lock, flags);
 	list_for_each_entry_safe(list_reply, r,
 				 &reply->card->lancmd_waiters,list) {
@@ -864,7 +864,6 @@ lcs_send_lancmd(struct lcs_card *card, struct lcs_buffer *buffer,
 {
 	struct lcs_reply *reply;
 	struct lcs_cmd *cmd;
-	struct timer_list timer;
 	unsigned long flags;
 	int rc;
 
@@ -885,14 +884,10 @@ lcs_send_lancmd(struct lcs_card *card, struct lcs_buffer *buffer,
 	rc = lcs_ready_buffer(&card->write, buffer);
 	if (rc)
 		return rc;
-	init_timer_on_stack(&timer);
-	timer.function = lcs_lancmd_timeout;
-	timer.data = (unsigned long) reply;
-	timer.expires = jiffies + HZ*card->lancmd_timeout;
-	add_timer(&timer);
+	timer_setup(&reply->timer, lcs_lancmd_timeout, 0);
+	mod_timer(&reply->timer, jiffies + HZ * card->lancmd_timeout);
 	wait_event(reply->wait_q, reply->received);
-	del_timer_sync(&timer);
-	destroy_timer_on_stack(&timer);
+	del_timer_sync(&reply->timer);
 	LCS_DBF_TEXT_(4, trace, "rc:%d",reply->rc);
 	rc = reply->rc;
 	lcs_put_reply(reply);
@@ -2396,6 +2391,7 @@ static struct ccwgroup_driver lcs_group_driver = {
 		.owner	= THIS_MODULE,
 		.name	= "lcs",
 	},
+	.ccw_driver  = &lcs_ccw_driver,
 	.setup	     = lcs_probe_device,
 	.remove      = lcs_remove_device,
 	.set_online  = lcs_new_device,
diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h
index 150fcb4cebc3..fbc8b90b1f85 100644
--- a/drivers/s390/net/lcs.h
+++ b/drivers/s390/net/lcs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*lcs.h*/
 
 #include <linux/interrupt.h>
@@ -275,6 +276,7 @@ struct lcs_reply {
 	void (*callback)(struct lcs_card *, struct lcs_cmd *);
 	wait_queue_head_t wait_q;
 	struct lcs_card *card;
+	struct timer_list timer;
 	int received;
 	int rc;
 };
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index 59e09854c4f7..47a13c5723c6 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index bae7440abc01..61cf3e9c0acb 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -5875,6 +5875,7 @@ static struct ccwgroup_driver qeth_core_ccwgroup_driver = {
 		.owner = THIS_MODULE,
 		.name = "qeth",
 	},
+	.ccw_driver = &qeth_ccw_driver,
 	.setup = qeth_core_probe_device,
 	.remove = qeth_core_remove_device,
 	.set_online = qeth_core_set_online,
diff --git a/drivers/s390/net/qeth_core_mpc.c b/drivers/s390/net/qeth_core_mpc.c
index 6dd7d05e5693..dafb8c643426 100644
--- a/drivers/s390/net/qeth_core_mpc.c
+++ b/drivers/s390/net/qeth_core_mpc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Frank Pavlic <fpavlic@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_core_mpc.h b/drivers/s390/net/qeth_core_mpc.h
index 912e0107de8f..55f3d234ea1d 100644
--- a/drivers/s390/net/qeth_core_mpc.h
+++ b/drivers/s390/net/qeth_core_mpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Frank Pavlic <fpavlic@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_l2.h b/drivers/s390/net/qeth_l2.h
index 0d59f9a45ea9..d4a8293d318d 100644
--- a/drivers/s390/net/qeth_l2.h
+++ b/drivers/s390/net/qeth_l2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2013
  *    Author(s): Eugene Crosser <eugene.crosser@ru.ibm.com>
diff --git a/drivers/s390/net/qeth_l2_sys.c b/drivers/s390/net/qeth_l2_sys.c
index 9696baa49e2d..d33d413f7150 100644
--- a/drivers/s390/net/qeth_l2_sys.c
+++ b/drivers/s390/net/qeth_l2_sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2013
  *    Author(s): Eugene Crosser <eugene.crosser@ru.ibm.com>
diff --git a/drivers/s390/net/qeth_l3.h b/drivers/s390/net/qeth_l3.h
index 9b5e439f18cf..194ae9b577cc 100644
--- a/drivers/s390/net/qeth_l3.h
+++ b/drivers/s390/net/qeth_l3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/qeth_l3_sys.c b/drivers/s390/net/qeth_l3_sys.c
index e8bcc314cc5f..7a829ad77783 100644
--- a/drivers/s390/net/qeth_l3_sys.c
+++ b/drivers/s390/net/qeth_l3_sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *    Copyright IBM Corp. 2007
  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
diff --git a/drivers/s390/net/smsgiucv.h b/drivers/s390/net/smsgiucv.h
index 45bc925928ca..a0d6c6130c4b 100644
--- a/drivers/s390/net/smsgiucv.h
+++ b/drivers/s390/net/smsgiucv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IUCV special message driver
  *
diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c
index 82ac331d9125..84752152d41f 100644
--- a/drivers/s390/scsi/zfcp_aux.c
+++ b/drivers/s390/scsi/zfcp_aux.c
@@ -357,6 +357,8 @@ struct zfcp_adapter *zfcp_adapter_enqueue(struct ccw_device *ccw_device)
 
 	adapter->next_port_scan = jiffies;
 
+	adapter->erp_action.adapter = adapter;
+
 	if (zfcp_qdio_setup(adapter))
 		goto failed;
 
@@ -513,6 +515,9 @@ struct zfcp_port *zfcp_port_enqueue(struct zfcp_adapter *adapter, u64 wwpn,
 	port->dev.groups = zfcp_port_attr_groups;
 	port->dev.release = zfcp_port_release;
 
+	port->erp_action.adapter = adapter;
+	port->erp_action.port = port;
+
 	if (dev_set_name(&port->dev, "0x%016llx", (unsigned long long)wwpn)) {
 		kfree(port);
 		goto err_out;
diff --git a/drivers/s390/scsi/zfcp_ccw.c b/drivers/s390/scsi/zfcp_ccw.c
index 54c7b48fdb46..49eda141ea43 100644
--- a/drivers/s390/scsi/zfcp_ccw.c
+++ b/drivers/s390/scsi/zfcp_ccw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 8227076c9cbb..a8b831000b2d 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 3508c00458f4..e2a973cd2573 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  * debug feature declarations
diff --git a/drivers/s390/scsi/zfcp_def.h b/drivers/s390/scsi/zfcp_def.h
index b8e853e53546..3396a47721a7 100644
--- a/drivers/s390/scsi/zfcp_def.h
+++ b/drivers/s390/scsi/zfcp_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
index 37408f5f81ce..cbb8156bf5e0 100644
--- a/drivers/s390/scsi/zfcp_erp.c
+++ b/drivers/s390/scsi/zfcp_erp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
@@ -193,9 +194,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE,
 				&zfcp_sdev->status);
 		erp_action = &zfcp_sdev->erp_action;
-		memset(erp_action, 0, sizeof(struct zfcp_erp_action));
-		erp_action->port = port;
-		erp_action->sdev = sdev;
+		WARN_ON_ONCE(erp_action->port != port);
+		WARN_ON_ONCE(erp_action->sdev != sdev);
 		if (!(atomic_read(&zfcp_sdev->status) &
 		      ZFCP_STATUS_COMMON_RUNNING))
 			act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -208,8 +208,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
 		zfcp_erp_action_dismiss_port(port);
 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &port->status);
 		erp_action = &port->erp_action;
-		memset(erp_action, 0, sizeof(struct zfcp_erp_action));
-		erp_action->port = port;
+		WARN_ON_ONCE(erp_action->port != port);
+		WARN_ON_ONCE(erp_action->sdev != NULL);
 		if (!(atomic_read(&port->status) & ZFCP_STATUS_COMMON_RUNNING))
 			act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
 		break;
@@ -219,7 +219,8 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
 		zfcp_erp_action_dismiss_adapter(adapter);
 		atomic_or(ZFCP_STATUS_COMMON_ERP_INUSE, &adapter->status);
 		erp_action = &adapter->erp_action;
-		memset(erp_action, 0, sizeof(struct zfcp_erp_action));
+		WARN_ON_ONCE(erp_action->port != NULL);
+		WARN_ON_ONCE(erp_action->sdev != NULL);
 		if (!(atomic_read(&adapter->status) &
 		      ZFCP_STATUS_COMMON_RUNNING))
 			act_status |= ZFCP_STATUS_ERP_CLOSE_ONLY;
@@ -229,7 +230,11 @@ static struct zfcp_erp_action *zfcp_erp_setup_act(int need, u32 act_status,
 		return NULL;
 	}
 
-	erp_action->adapter = adapter;
+	WARN_ON_ONCE(erp_action->adapter != adapter);
+	memset(&erp_action->list, 0, sizeof(erp_action->list));
+	memset(&erp_action->timer, 0, sizeof(erp_action->timer));
+	erp_action->step = ZFCP_ERP_STEP_UNINITIALIZED;
+	erp_action->fsf_req_id = 0;
 	erp_action->action = need;
 	erp_action->status = act_status;
 
diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
index a9e968717dd9..8ca2ab7deaa9 100644
--- a/drivers/s390/scsi/zfcp_ext.h
+++ b/drivers/s390/scsi/zfcp_ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_fc.c b/drivers/s390/scsi/zfcp_fc.c
index 8210645c2111..ca218c82321f 100644
--- a/drivers/s390/scsi/zfcp_fc.c
+++ b/drivers/s390/scsi/zfcp_fc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h
index 41f22d3dc6d1..6a397ddaadf0 100644
--- a/drivers/s390/scsi/zfcp_fc.h
+++ b/drivers/s390/scsi/zfcp_fc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 69d1dc3ec79d..00fb98f7b2cd 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h
index 88feba5bfda4..4baca67aba6d 100644
--- a/drivers/s390/scsi/zfcp_fsf.h
+++ b/drivers/s390/scsi/zfcp_fsf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_qdio.c b/drivers/s390/scsi/zfcp_qdio.c
index 9e358fc04b78..4ab02e8d36f3 100644
--- a/drivers/s390/scsi/zfcp_qdio.c
+++ b/drivers/s390/scsi/zfcp_qdio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_qdio.h b/drivers/s390/scsi/zfcp_qdio.h
index 7f647a90c750..886c662cc154 100644
--- a/drivers/s390/scsi/zfcp_qdio.h
+++ b/drivers/s390/scsi/zfcp_qdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_reqlist.h b/drivers/s390/scsi/zfcp_reqlist.h
index 703fce59befe..59a943c0d51d 100644
--- a/drivers/s390/scsi/zfcp_reqlist.h
+++ b/drivers/s390/scsi/zfcp_reqlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
index ec3ddd1d31d5..4d2ba5682493 100644
--- a/drivers/s390/scsi/zfcp_scsi.c
+++ b/drivers/s390/scsi/zfcp_scsi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
@@ -115,10 +116,15 @@ static int zfcp_scsi_slave_alloc(struct scsi_device *sdev)
 	struct zfcp_unit *unit;
 	int npiv = adapter->connection_features & FSF_FEATURE_NPIV_MODE;
 
+	zfcp_sdev->erp_action.adapter = adapter;
+	zfcp_sdev->erp_action.sdev = sdev;
+
 	port = zfcp_get_port_by_wwpn(adapter, rport->port_name);
 	if (!port)
 		return -ENXIO;
 
+	zfcp_sdev->erp_action.port = port;
+
 	unit = zfcp_unit_find(port, zfcp_scsi_dev_lun(sdev));
 	if (unit)
 		put_device(&unit->dev);
diff --git a/drivers/s390/scsi/zfcp_sysfs.c b/drivers/s390/scsi/zfcp_sysfs.c
index 96a0be13e841..3ac823f2540f 100644
--- a/drivers/s390/scsi/zfcp_sysfs.c
+++ b/drivers/s390/scsi/zfcp_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/scsi/zfcp_unit.c b/drivers/s390/scsi/zfcp_unit.c
index 9310a547b89f..1bf0a0984a09 100644
--- a/drivers/s390/scsi/zfcp_unit.c
+++ b/drivers/s390/scsi/zfcp_unit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zfcp device driver
  *
diff --git a/drivers/s390/virtio/Makefile b/drivers/s390/virtio/Makefile
index df40692a9011..f68af1f317f1 100644
--- a/drivers/s390/virtio/Makefile
+++ b/drivers/s390/virtio/Makefile
@@ -6,8 +6,4 @@
 # it under the terms of the GNU General Public License (version 2 only)
 # as published by the Free Software Foundation.
 
-s390-virtio-objs := virtio_ccw.o
-ifdef CONFIG_S390_GUEST_OLD_TRANSPORT
-s390-virtio-objs += kvm_virtio.o
-endif
-obj-$(CONFIG_S390_GUEST) += $(s390-virtio-objs)
+obj-$(CONFIG_S390_GUEST) += virtio_ccw.o
diff --git a/drivers/s390/virtio/kvm_virtio.c b/drivers/s390/virtio/kvm_virtio.c
deleted file mode 100644
index a99d09a11f05..000000000000
--- a/drivers/s390/virtio/kvm_virtio.c
+++ /dev/null
@@ -1,515 +0,0 @@
-/*
- * virtio for kvm on s390
- *
- * Copyright IBM Corp. 2008
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- *
- *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
- */
-
-#include <linux/kernel_stat.h>
-#include <linux/init.h>
-#include <linux/bootmem.h>
-#include <linux/err.h>
-#include <linux/virtio.h>
-#include <linux/virtio_config.h>
-#include <linux/slab.h>
-#include <linux/virtio_console.h>
-#include <linux/interrupt.h>
-#include <linux/virtio_ring.h>
-#include <linux/export.h>
-#include <linux/pfn.h>
-#include <asm/io.h>
-#include <asm/kvm_para.h>
-#include <asm/kvm_virtio.h>
-#include <asm/sclp.h>
-#include <asm/setup.h>
-#include <asm/irq.h>
-
-#define VIRTIO_SUBCODE_64 0x0D00
-
-/*
- * The pointer to our (page) of device descriptions.
- */
-static void *kvm_devices;
-static struct work_struct hotplug_work;
-
-struct kvm_device {
-	struct virtio_device vdev;
-	struct kvm_device_desc *desc;
-};
-
-#define to_kvmdev(vd) container_of(vd, struct kvm_device, vdev)
-
-/*
- * memory layout:
- * - kvm_device_descriptor
- *        struct kvm_device_desc
- * - configuration
- *        struct kvm_vqconfig
- * - feature bits
- * - config space
- */
-static struct kvm_vqconfig *kvm_vq_config(const struct kvm_device_desc *desc)
-{
-	return (struct kvm_vqconfig *)(desc + 1);
-}
-
-static u8 *kvm_vq_features(const struct kvm_device_desc *desc)
-{
-	return (u8 *)(kvm_vq_config(desc) + desc->num_vq);
-}
-
-static u8 *kvm_vq_configspace(const struct kvm_device_desc *desc)
-{
-	return kvm_vq_features(desc) + desc->feature_len * 2;
-}
-
-/*
- * The total size of the config page used by this device (incl. desc)
- */
-static unsigned desc_size(const struct kvm_device_desc *desc)
-{
-	return sizeof(*desc)
-		+ desc->num_vq * sizeof(struct kvm_vqconfig)
-		+ desc->feature_len * 2
-		+ desc->config_len;
-}
-
-/* This gets the device's feature bits. */
-static u64 kvm_get_features(struct virtio_device *vdev)
-{
-	unsigned int i;
-	u32 features = 0;
-	struct kvm_device_desc *desc = to_kvmdev(vdev)->desc;
-	u8 *in_features = kvm_vq_features(desc);
-
-	for (i = 0; i < min(desc->feature_len * 8, 32); i++)
-		if (in_features[i / 8] & (1 << (i % 8)))
-			features |= (1 << i);
-	return features;
-}
-
-static int kvm_finalize_features(struct virtio_device *vdev)
-{
-	unsigned int i, bits;
-	struct kvm_device_desc *desc = to_kvmdev(vdev)->desc;
-	/* Second half of bitmap is features we accept. */
-	u8 *out_features = kvm_vq_features(desc) + desc->feature_len;
-
-	/* Give virtio_ring a chance to accept features. */
-	vring_transport_features(vdev);
-
-	/* Make sure we don't have any features > 32 bits! */
-	BUG_ON((u32)vdev->features != vdev->features);
-
-	memset(out_features, 0, desc->feature_len);
-	bits = min_t(unsigned, desc->feature_len, sizeof(vdev->features)) * 8;
-	for (i = 0; i < bits; i++) {
-		if (__virtio_test_bit(vdev, i))
-			out_features[i / 8] |= (1 << (i % 8));
-	}
-
-	return 0;
-}
-
-/*
- * Reading and writing elements in config space
- */
-static void kvm_get(struct virtio_device *vdev, unsigned int offset,
-		   void *buf, unsigned len)
-{
-	struct kvm_device_desc *desc = to_kvmdev(vdev)->desc;
-
-	BUG_ON(offset + len > desc->config_len);
-	memcpy(buf, kvm_vq_configspace(desc) + offset, len);
-}
-
-static void kvm_set(struct virtio_device *vdev, unsigned int offset,
-		   const void *buf, unsigned len)
-{
-	struct kvm_device_desc *desc = to_kvmdev(vdev)->desc;
-
-	BUG_ON(offset + len > desc->config_len);
-	memcpy(kvm_vq_configspace(desc) + offset, buf, len);
-}
-
-/*
- * The operations to get and set the status word just access
- * the status field of the device descriptor. set_status will also
- * make a hypercall to the host, to tell about status changes
- */
-static u8 kvm_get_status(struct virtio_device *vdev)
-{
-	return to_kvmdev(vdev)->desc->status;
-}
-
-static void kvm_set_status(struct virtio_device *vdev, u8 status)
-{
-	BUG_ON(!status);
-	to_kvmdev(vdev)->desc->status = status;
-	kvm_hypercall1(KVM_S390_VIRTIO_SET_STATUS,
-		       (unsigned long) to_kvmdev(vdev)->desc);
-}
-
-/*
- * To reset the device, we use the KVM_VIRTIO_RESET hypercall, using the
- * descriptor address. The Host will zero the status and all the
- * features.
- */
-static void kvm_reset(struct virtio_device *vdev)
-{
-	kvm_hypercall1(KVM_S390_VIRTIO_RESET,
-		       (unsigned long) to_kvmdev(vdev)->desc);
-}
-
-/*
- * When the virtio_ring code wants to notify the Host, it calls us here and we
- * make a hypercall.  We hand the address  of the virtqueue so the Host
- * knows which virtqueue we're talking about.
- */
-static bool kvm_notify(struct virtqueue *vq)
-{
-	long rc;
-	struct kvm_vqconfig *config = vq->priv;
-
-	rc = kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, config->address);
-	if (rc < 0)
-		return false;
-	return true;
-}
-
-/*
- * This routine finds the first virtqueue described in the configuration of
- * this device and sets it up.
- */
-static struct virtqueue *kvm_find_vq(struct virtio_device *vdev,
-				     unsigned index,
-				     void (*callback)(struct virtqueue *vq),
-				     const char *name, bool ctx)
-{
-	struct kvm_device *kdev = to_kvmdev(vdev);
-	struct kvm_vqconfig *config;
-	struct virtqueue *vq;
-	int err;
-
-	if (index >= kdev->desc->num_vq)
-		return ERR_PTR(-ENOENT);
-
-	if (!name)
-		return NULL;
-
-	config = kvm_vq_config(kdev->desc)+index;
-
-	err = vmem_add_mapping(config->address,
-			       vring_size(config->num,
-					  KVM_S390_VIRTIO_RING_ALIGN));
-	if (err)
-		goto out;
-
-	vq = vring_new_virtqueue(index, config->num, KVM_S390_VIRTIO_RING_ALIGN,
-				 vdev, true, ctx, (void *) config->address,
-				 kvm_notify, callback, name);
-	if (!vq) {
-		err = -ENOMEM;
-		goto unmap;
-	}
-
-	/*
-	 * register a callback token
-	 * The host will sent this via the external interrupt parameter
-	 */
-	config->token = (u64) vq;
-
-	vq->priv = config;
-	return vq;
-unmap:
-	vmem_remove_mapping(config->address,
-			    vring_size(config->num,
-				       KVM_S390_VIRTIO_RING_ALIGN));
-out:
-	return ERR_PTR(err);
-}
-
-static void kvm_del_vq(struct virtqueue *vq)
-{
-	struct kvm_vqconfig *config = vq->priv;
-
-	vring_del_virtqueue(vq);
-	vmem_remove_mapping(config->address,
-			    vring_size(config->num,
-				       KVM_S390_VIRTIO_RING_ALIGN));
-}
-
-static void kvm_del_vqs(struct virtio_device *vdev)
-{
-	struct virtqueue *vq, *n;
-
-	list_for_each_entry_safe(vq, n, &vdev->vqs, list)
-		kvm_del_vq(vq);
-}
-
-static int kvm_find_vqs(struct virtio_device *vdev, unsigned nvqs,
-			struct virtqueue *vqs[],
-			vq_callback_t *callbacks[],
-			const char * const names[],
-			const bool *ctx,
-			struct irq_affinity *desc)
-{
-	struct kvm_device *kdev = to_kvmdev(vdev);
-	int i;
-
-	/* We must have this many virtqueues. */
-	if (nvqs > kdev->desc->num_vq)
-		return -ENOENT;
-
-	for (i = 0; i < nvqs; ++i) {
-		vqs[i] = kvm_find_vq(vdev, i, callbacks[i], names[i],
-				     ctx ? ctx[i] : false);
-		if (IS_ERR(vqs[i]))
-			goto error;
-	}
-	return 0;
-
-error:
-	kvm_del_vqs(vdev);
-	return PTR_ERR(vqs[i]);
-}
-
-static const char *kvm_bus_name(struct virtio_device *vdev)
-{
-	return "";
-}
-
-/*
- * The config ops structure as defined by virtio config
- */
-static const struct virtio_config_ops kvm_vq_configspace_ops = {
-	.get_features = kvm_get_features,
-	.finalize_features = kvm_finalize_features,
-	.get = kvm_get,
-	.set = kvm_set,
-	.get_status = kvm_get_status,
-	.set_status = kvm_set_status,
-	.reset = kvm_reset,
-	.find_vqs = kvm_find_vqs,
-	.del_vqs = kvm_del_vqs,
-	.bus_name = kvm_bus_name,
-};
-
-/*
- * The root device for the kvm virtio devices.
- * This makes them appear as /sys/devices/kvm_s390/0,1,2 not /sys/devices/0,1,2.
- */
-static struct device *kvm_root;
-
-/*
- * adds a new device and register it with virtio
- * appropriate drivers are loaded by the device model
- */
-static void add_kvm_device(struct kvm_device_desc *d, unsigned int offset)
-{
-	struct kvm_device *kdev;
-
-	kdev = kzalloc(sizeof(*kdev), GFP_KERNEL);
-	if (!kdev) {
-		printk(KERN_EMERG "Cannot allocate kvm dev %u type %u\n",
-		       offset, d->type);
-		return;
-	}
-
-	kdev->vdev.dev.parent = kvm_root;
-	kdev->vdev.id.device = d->type;
-	kdev->vdev.config = &kvm_vq_configspace_ops;
-	kdev->desc = d;
-
-	if (register_virtio_device(&kdev->vdev) != 0) {
-		printk(KERN_ERR "Failed to register kvm device %u type %u\n",
-		       offset, d->type);
-		kfree(kdev);
-	}
-}
-
-/*
- * scan_devices() simply iterates through the device page.
- * The type 0 is reserved to mean "end of devices".
- */
-static void scan_devices(void)
-{
-	unsigned int i;
-	struct kvm_device_desc *d;
-
-	for (i = 0; i < PAGE_SIZE; i += desc_size(d)) {
-		d = kvm_devices + i;
-
-		if (d->type == 0)
-			break;
-
-		add_kvm_device(d, i);
-	}
-}
-
-/*
- * match for a kvm device with a specific desc pointer
- */
-static int match_desc(struct device *dev, void *data)
-{
-	struct virtio_device *vdev = dev_to_virtio(dev);
-	struct kvm_device *kdev = to_kvmdev(vdev);
-
-	return kdev->desc == data;
-}
-
-/*
- * hotplug_device tries to find changes in the device page.
- */
-static void hotplug_devices(struct work_struct *dummy)
-{
-	unsigned int i;
-	struct kvm_device_desc *d;
-	struct device *dev;
-
-	for (i = 0; i < PAGE_SIZE; i += desc_size(d)) {
-		d = kvm_devices + i;
-
-		/* end of list */
-		if (d->type == 0)
-			break;
-
-		/* device already exists */
-		dev = device_find_child(kvm_root, d, match_desc);
-		if (dev) {
-			/* XXX check for hotplug remove */
-			put_device(dev);
-			continue;
-		}
-
-		/* new device */
-		printk(KERN_INFO "Adding new virtio device %p\n", d);
-		add_kvm_device(d, i);
-	}
-}
-
-/*
- * we emulate the request_irq behaviour on top of s390 extints
- */
-static void kvm_extint_handler(struct ext_code ext_code,
-			       unsigned int param32, unsigned long param64)
-{
-	struct virtqueue *vq;
-	u32 param;
-
-	if ((ext_code.subcode & 0xff00) != VIRTIO_SUBCODE_64)
-		return;
-	inc_irq_stat(IRQEXT_VRT);
-
-	/* The LSB might be overloaded, we have to mask it */
-	vq = (struct virtqueue *)(param64 & ~1UL);
-
-	/* We use ext_params to decide what this interrupt means */
-	param = param32 & VIRTIO_PARAM_MASK;
-
-	switch (param) {
-	case VIRTIO_PARAM_CONFIG_CHANGED:
-		virtio_config_changed(vq->vdev);
-		break;
-	case VIRTIO_PARAM_DEV_ADD:
-		schedule_work(&hotplug_work);
-		break;
-	case VIRTIO_PARAM_VRING_INTERRUPT:
-	default:
-		vring_interrupt(0, vq);
-		break;
-	}
-}
-
-/*
- * For s390-virtio, we expect a page above main storage containing
- * the virtio configuration. Try to actually load from this area
- * in order to figure out if the host provides this page.
- */
-static int __init test_devices_support(unsigned long addr)
-{
-	int ret = -EIO;
-
-	asm volatile(
-		"0:	lura	0,%1\n"
-		"1:	xgr	%0,%0\n"
-		"2:\n"
-		EX_TABLE(0b,2b)
-		EX_TABLE(1b,2b)
-		: "+d" (ret)
-		: "a" (addr)
-		: "0", "cc");
-	return ret;
-}
-/*
- * Init function for virtio
- * devices are in a single page above top of "normal" + standby mem
- */
-static int __init kvm_devices_init(void)
-{
-	int rc;
-	unsigned long total_memory_size = sclp.rzm * sclp.rnmax;
-
-	if (!MACHINE_IS_KVM)
-		return -ENODEV;
-
-	if (test_devices_support(total_memory_size) < 0)
-		return -ENODEV;
-
-	pr_warn("The s390-virtio transport is deprecated. Please switch to a modern host providing virtio-ccw.\n");
-
-	rc = vmem_add_mapping(total_memory_size, PAGE_SIZE);
-	if (rc)
-		return rc;
-
-	kvm_devices = (void *) total_memory_size;
-
-	kvm_root = root_device_register("kvm_s390");
-	if (IS_ERR(kvm_root)) {
-		rc = PTR_ERR(kvm_root);
-		printk(KERN_ERR "Could not register kvm_s390 root device");
-		vmem_remove_mapping(total_memory_size, PAGE_SIZE);
-		return rc;
-	}
-
-	INIT_WORK(&hotplug_work, hotplug_devices);
-
-	irq_subclass_register(IRQ_SUBCLASS_SERVICE_SIGNAL);
-	register_external_irq(EXT_IRQ_CP_SERVICE, kvm_extint_handler);
-
-	scan_devices();
-	return 0;
-}
-
-/* code for early console output with virtio_console */
-static int early_put_chars(u32 vtermno, const char *buf, int count)
-{
-	char scratch[17];
-	unsigned int len = count;
-
-	if (len > sizeof(scratch) - 1)
-		len = sizeof(scratch) - 1;
-	scratch[len] = '\0';
-	memcpy(scratch, buf, len);
-	kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, __pa(scratch));
-	return len;
-}
-
-static int __init s390_virtio_console_init(void)
-{
-	if (sclp.has_vt220 || sclp.has_linemode)
-		return -ENODEV;
-	return virtio_cons_early_init(early_put_chars);
-}
-console_initcall(s390_virtio_console_init);
-
-
-/*
- * We do this after core stuff, but before the drivers.
- */
-postcore_initcall(kvm_devices_init);
diff --git a/drivers/sbus/char/Makefile b/drivers/sbus/char/Makefile
index 78b6183c9866..ae478144c551 100644
--- a/drivers/sbus/char/Makefile
+++ b/drivers/sbus/char/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel miscellaneous SPARC device drivers.
 #
diff --git a/drivers/sbus/char/bbc_envctrl.c b/drivers/sbus/char/bbc_envctrl.c
index 228c782d6433..fb5bcf6dddc1 100644
--- a/drivers/sbus/char/bbc_envctrl.c
+++ b/drivers/sbus/char/bbc_envctrl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* bbc_envctrl.c: UltraSPARC-III environment control driver.
  *
  * Copyright (C) 2001, 2008 David S. Miller (davem@davemloft.net)
diff --git a/drivers/sbus/char/bbc_i2c.h b/drivers/sbus/char/bbc_i2c.h
index 4b4531066e75..c2d066d3fa41 100644
--- a/drivers/sbus/char/bbc_i2c.h
+++ b/drivers/sbus/char/bbc_i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BBC_I2C_H
 #define _BBC_I2C_H
 
diff --git a/drivers/sbus/char/max1617.h b/drivers/sbus/char/max1617.h
index cd30819a0a30..45c8318787d8 100644
--- a/drivers/sbus/char/max1617.h
+++ b/drivers/sbus/char/max1617.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: max1617.h,v 1.1 2001/04/02 09:59:08 davem Exp $ */
 #ifndef _MAX1617_H
 #define _MAX1617_H
diff --git a/drivers/scsi/53c700.h b/drivers/scsi/53c700.h
index f34c916b95bc..0c9a100af667 100644
--- a/drivers/scsi/53c700.h
+++ b/drivers/scsi/53c700.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* -*- mode: c; c-basic-offset: 8 -*- */
 
 /* Driver for 53c700 and 53c700-66 chips from NCR and Symbios
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 41366339b950..766955318005 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -130,7 +130,8 @@ config CHR_DEV_OSST
 
 config BLK_DEV_SR
 	tristate "SCSI CDROM support"
-	depends on SCSI
+	depends on SCSI && BLK_DEV
+	select CDROM
 	---help---
 	  If you want to use a CD or DVD drive attached to your computer
 	  by SCSI, FireWire, USB or ATAPI, say Y and read the SCSI-HOWTO
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index c4298c7fe819..fcfd28d2884c 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for linux/drivers/scsi
 #
diff --git a/drivers/scsi/NCR5380.c b/drivers/scsi/NCR5380.c
index ccd912e7b63e..90ea0f5d9bdb 100644
--- a/drivers/scsi/NCR5380.c
+++ b/drivers/scsi/NCR5380.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NCR 5380 generic driver routines.  These should make it *trivial*
  * to implement 5380 SCSI drivers under Linux with a non-trantor
diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h
index d78f0957d865..31096a0b0fdd 100644
--- a/drivers/scsi/NCR5380.h
+++ b/drivers/scsi/NCR5380.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * NCR 5380 defines
  *
diff --git a/drivers/scsi/NCR_D700.h b/drivers/scsi/NCR_D700.h
index f167af6bd2af..eb675d782ef6 100644
--- a/drivers/scsi/NCR_D700.h
+++ b/drivers/scsi/NCR_D700.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* -*- mode: c; c-basic-offset: 8 -*- */
 
 /* NCR Dual 700 MCA SCSI Driver
diff --git a/drivers/scsi/NCR_Q720.h b/drivers/scsi/NCR_Q720.h
index 7b9209008187..d5f46cdb736e 100644
--- a/drivers/scsi/NCR_Q720.h
+++ b/drivers/scsi/NCR_Q720.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* -*- mode: c; c-basic-offset: 8 -*- */
 
 /* NCR Quad 720 MCA SCSI Driver
diff --git a/drivers/scsi/a2091.h b/drivers/scsi/a2091.h
index 794b8e65c711..8d8a4074a570 100644
--- a/drivers/scsi/a2091.h
+++ b/drivers/scsi/a2091.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef A2091_H
 #define A2091_H
 
diff --git a/drivers/scsi/a3000.h b/drivers/scsi/a3000.h
index 49db4a335aab..5cb3e7535281 100644
--- a/drivers/scsi/a3000.h
+++ b/drivers/scsi/a3000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef A3000_H
 #define A3000_H
 
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index a64285ab0728..af3e4d3f9735 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -699,13 +699,13 @@ static void _aac_probe_container1(void * context, struct fib * fibptr)
 	int status;
 
 	dresp = (struct aac_mount *) fib_data(fibptr);
-	if (!(fibptr->dev->supplement_adapter_info.supported_options2 &
-	    AAC_OPTION_VARIABLE_BLOCK_SIZE))
+	if (!aac_supports_2T(fibptr->dev)) {
 		dresp->mnt[0].capacityhigh = 0;
-	if ((le32_to_cpu(dresp->status) != ST_OK) ||
-	    (le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
-		_aac_probe_container2(context, fibptr);
-		return;
+		if ((le32_to_cpu(dresp->status) == ST_OK) &&
+			(le32_to_cpu(dresp->mnt[0].vol) != CT_NONE)) {
+			_aac_probe_container2(context, fibptr);
+			return;
+		}
 	}
 	scsicmd = (struct scsi_cmnd *) context;
 
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 92fabf2b0c24..403a639574e5 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -2701,6 +2701,11 @@ static inline int aac_is_src(struct aac_dev *dev)
 	return 0;
 }
 
+static inline int aac_supports_2T(struct aac_dev *dev)
+{
+	return (dev->adapter_info.options & AAC_OPT_NEW_COMM_64);
+}
+
 char * get_container_type(unsigned type);
 extern int numacb;
 extern char aac_driver_version[];
diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
index 97d269f16888..1bc623ad3faf 100644
--- a/drivers/scsi/aacraid/comminit.c
+++ b/drivers/scsi/aacraid/comminit.c
@@ -302,9 +302,11 @@ int aac_send_shutdown(struct aac_dev * dev)
 		return -ENOMEM;
 	aac_fib_init(fibctx);
 
-	mutex_lock(&dev->ioctl_mutex);
-	dev->adapter_shutdown = 1;
-	mutex_unlock(&dev->ioctl_mutex);
+	if (!dev->adapter_shutdown) {
+		mutex_lock(&dev->ioctl_mutex);
+		dev->adapter_shutdown = 1;
+		mutex_unlock(&dev->ioctl_mutex);
+	}
 
 	cmd = (struct aac_close *) fib_data(fibctx);
 	cmd->command = cpu_to_le32(VM_CloseAll);
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index 87cc4a93e637..c9252b138c1f 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -906,12 +906,14 @@ static int aac_eh_dev_reset(struct scsi_cmnd *cmd)
 
 	bus = aac_logical_to_phys(scmd_channel(cmd));
 	cid = scmd_id(cmd);
-	info = &aac->hba_map[bus][cid];
-	if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
-	    info->devtype != AAC_DEVTYPE_NATIVE_RAW)
+
+	if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
 		return FAILED;
 
-	if (info->reset_state > 0)
+	info = &aac->hba_map[bus][cid];
+
+	if (info->devtype != AAC_DEVTYPE_NATIVE_RAW &&
+	    info->reset_state > 0)
 		return FAILED;
 
 	pr_err("%s: Host adapter reset request. SCSI hang ?\n",
@@ -962,12 +964,14 @@ static int aac_eh_target_reset(struct scsi_cmnd *cmd)
 
 	bus = aac_logical_to_phys(scmd_channel(cmd));
 	cid = scmd_id(cmd);
-	info = &aac->hba_map[bus][cid];
-	if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS ||
-	    info->devtype != AAC_DEVTYPE_NATIVE_RAW)
+
+	if (bus >= AAC_MAX_BUSES || cid >= AAC_MAX_TARGETS)
 		return FAILED;
 
-	if (info->reset_state > 0)
+	info = &aac->hba_map[bus][cid];
+
+	if (info->devtype != AAC_DEVTYPE_NATIVE_RAW &&
+	    info->reset_state > 0)
 		return FAILED;
 
 	pr_err("%s: Host adapter reset request. SCSI hang ?\n",
@@ -1547,8 +1551,9 @@ static void __aac_shutdown(struct aac_dev * aac)
 {
 	int i;
 
+	mutex_lock(&aac->ioctl_mutex);
 	aac->adapter_shutdown = 1;
-	aac_send_shutdown(aac);
+	mutex_unlock(&aac->ioctl_mutex);
 
 	if (aac->aif_thread) {
 		int i;
@@ -1561,7 +1566,11 @@ static void __aac_shutdown(struct aac_dev * aac)
 		}
 		kthread_stop(aac->thread);
 	}
+
+	aac_send_shutdown(aac);
+
 	aac_adapter_disable_int(aac);
+
 	if (aac_is_src(aac)) {
 		if (aac->max_msix > 1) {
 			for (i = 0; i < aac->max_msix; i++) {
diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c
index 48c2b2b34b72..0c9361c87ec8 100644
--- a/drivers/scsi/aacraid/src.c
+++ b/drivers/scsi/aacraid/src.c
@@ -740,6 +740,8 @@ static void aac_send_iop_reset(struct aac_dev *dev)
 	aac_set_intx_mode(dev);
 
 	src_writel(dev, MUnit.IDR, IOP_SRC_RESET_MASK);
+
+	msleep(5000);
 }
 
 static void aac_send_hardware_soft_reset(struct aac_dev *dev)
diff --git a/drivers/scsi/aha152x.h b/drivers/scsi/aha152x.h
index ac4bfa438bf2..efd01877d02b 100644
--- a/drivers/scsi/aha152x.h
+++ b/drivers/scsi/aha152x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AHA152X_H
 #define _AHA152X_H
 
diff --git a/drivers/scsi/aha1542.h b/drivers/scsi/aha1542.h
index 0fe9bae1b3d1..f5b0d210fb3c 100644
--- a/drivers/scsi/aha1542.h
+++ b/drivers/scsi/aha1542.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AHA1542_H_
 #define _AHA1542_H_
 
diff --git a/drivers/scsi/aha1740.h b/drivers/scsi/aha1740.h
index b0c5603461ca..dfdaa4d3ea4e 100644
--- a/drivers/scsi/aha1740.h
+++ b/drivers/scsi/aha1740.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AHA1740_H
 
 /* $Id$
diff --git a/drivers/scsi/aic7xxx/Makefile b/drivers/scsi/aic7xxx/Makefile
index b03ba0df7a83..c15be2590d1c 100644
--- a/drivers/scsi/aic7xxx/Makefile
+++ b/drivers/scsi/aic7xxx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux aic7xxx SCSI driver.
 #
diff --git a/drivers/scsi/aic7xxx/aic79xx.h b/drivers/scsi/aic7xxx/aic79xx.h
index d47b527b25dd..31f2bb9d7146 100644
--- a/drivers/scsi/aic7xxx/aic79xx.h
+++ b/drivers/scsi/aic7xxx/aic79xx.h
@@ -1046,8 +1046,6 @@ typedef enum {
 
 typedef uint8_t ahd_mode_state;
 
-typedef void ahd_callback_t (void *);
-
 struct ahd_completion
 {
 	uint16_t	tag;
@@ -1122,8 +1120,7 @@ struct ahd_softc {
 	/*
 	 * Timer handles for timer driven callbacks.
 	 */
-	ahd_timer_t		  reset_timer;
-	ahd_timer_t		  stat_timer;
+	struct timer_list	stat_timer;
 
 	/*
 	 * Statistics.
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c
index 95d8f25cbcca..b560f396ee99 100644
--- a/drivers/scsi/aic7xxx/aic79xx_core.c
+++ b/drivers/scsi/aic7xxx/aic79xx_core.c
@@ -207,7 +207,7 @@ static void		ahd_add_scb_to_free_list(struct ahd_softc *ahd,
 static u_int		ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid,
 				     u_int prev, u_int next, u_int tid);
 static void		ahd_reset_current_bus(struct ahd_softc *ahd);
-static ahd_callback_t	ahd_stat_timer;
+static void		ahd_stat_timer(struct timer_list *t);
 #ifdef AHD_DUMP_SEQ
 static void		ahd_dumpseq(struct ahd_softc *ahd);
 #endif
@@ -6104,8 +6104,7 @@ ahd_alloc(void *platform_arg, char *name)
 	ahd->bugs = AHD_BUGNONE;
 	ahd->flags = AHD_SPCHK_ENB_A|AHD_RESET_BUS_A|AHD_TERM_ENB_A
 		   | AHD_EXTENDED_TRANS_A|AHD_STPWLEVEL_A;
-	ahd_timer_init(&ahd->reset_timer);
-	ahd_timer_init(&ahd->stat_timer);
+	timer_setup(&ahd->stat_timer, ahd_stat_timer, 0);
 	ahd->int_coalescing_timer = AHD_INT_COALESCING_TIMER_DEFAULT;
 	ahd->int_coalescing_maxcmds = AHD_INT_COALESCING_MAXCMDS_DEFAULT;
 	ahd->int_coalescing_mincmds = AHD_INT_COALESCING_MINCMDS_DEFAULT;
@@ -6235,8 +6234,7 @@ ahd_shutdown(void *arg)
 	/*
 	 * Stop periodic timer callbacks.
 	 */
-	ahd_timer_stop(&ahd->reset_timer);
-	ahd_timer_stop(&ahd->stat_timer);
+	del_timer_sync(&ahd->stat_timer);
 
 	/* This will reset most registers to 0, but not all */
 	ahd_reset(ahd, /*reinit*/FALSE);
@@ -7039,20 +7037,11 @@ static const char *termstat_strings[] = {
 };
 
 /***************************** Timer Facilities *******************************/
-#define ahd_timer_init init_timer
-#define ahd_timer_stop del_timer_sync
-typedef void ahd_linux_callback_t (u_long);
-
 static void
-ahd_timer_reset(ahd_timer_t *timer, int usec, ahd_callback_t *func, void *arg)
+ahd_timer_reset(struct timer_list *timer, int usec)
 {
-	struct ahd_softc *ahd;
-
-	ahd = (struct ahd_softc *)arg;
 	del_timer(timer);
-	timer->data = (u_long)arg;
 	timer->expires = jiffies + (usec * HZ)/1000000;
-	timer->function = (ahd_linux_callback_t*)func;
 	add_timer(timer);
 }
 
@@ -7279,8 +7268,7 @@ ahd_init(struct ahd_softc *ahd)
 	}
 init_done:
 	ahd_restart(ahd);
-	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US,
-			ahd_stat_timer, ahd);
+	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US);
 	return (0);
 }
 
@@ -8878,9 +8866,9 @@ ahd_reset_channel(struct ahd_softc *ahd, char channel, int initiate_reset)
 
 /**************************** Statistics Processing ***************************/
 static void
-ahd_stat_timer(void *arg)
+ahd_stat_timer(struct timer_list *t)
 {
-	struct	ahd_softc *ahd = arg;
+	struct	ahd_softc *ahd = from_timer(ahd, t, stat_timer);
 	u_long	s;
 	int	enint_coal;
 	
@@ -8907,8 +8895,7 @@ ahd_stat_timer(void *arg)
 	ahd->cmdcmplt_bucket = (ahd->cmdcmplt_bucket+1) & (AHD_STAT_BUCKETS-1);
 	ahd->cmdcmplt_total -= ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket];
 	ahd->cmdcmplt_counts[ahd->cmdcmplt_bucket] = 0;
-	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US,
-			ahd_stat_timer, ahd);
+	ahd_timer_reset(&ahd->stat_timer, AHD_STAT_UPDATE_US);
 	ahd_unlock(ahd, &s);
 }
 
diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.h b/drivers/scsi/aic7xxx/aic79xx_osm.h
index 728193a42e6e..8a8b7ae7aed3 100644
--- a/drivers/scsi/aic7xxx/aic79xx_osm.h
+++ b/drivers/scsi/aic7xxx/aic79xx_osm.h
@@ -203,9 +203,6 @@ int	ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t);
  */
 #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
 
-/************************** Timer DataStructures ******************************/
-typedef struct timer_list ahd_timer_t;
-
 /********************************** Includes **********************************/
 #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT
 #define AIC_DEBUG_REGISTERS 1
@@ -214,10 +211,6 @@ typedef struct timer_list ahd_timer_t;
 #endif
 #include "aic79xx.h"
 
-/***************************** Timer Facilities *******************************/
-#define ahd_timer_init init_timer
-#define ahd_timer_stop del_timer_sync
-
 /***************************** SMP support ************************************/
 #include <linux/spinlock.h>
 
diff --git a/drivers/scsi/aic7xxx/aicasm/Makefile b/drivers/scsi/aic7xxx/aicasm/Makefile
index 45e2d49c1fff..243adb0a38d1 100644
--- a/drivers/scsi/aic7xxx/aicasm/Makefile
+++ b/drivers/scsi/aic7xxx/aicasm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 PROG=	aicasm
 
 OUTDIR ?= ./
diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.c b/drivers/scsi/aic94xx/aic94xx_hwi.c
index ec09438184a3..5402b85b0bdc 100644
--- a/drivers/scsi/aic94xx/aic94xx_hwi.c
+++ b/drivers/scsi/aic94xx/aic94xx_hwi.c
@@ -1175,8 +1175,7 @@ static void asd_start_scb_timers(struct list_head *list)
 	struct asd_ascb *ascb;
 	list_for_each_entry(ascb, list, list) {
 		if (!ascb->uldd_timer) {
-			ascb->timer.data = (unsigned long) ascb;
-			ascb->timer.function = asd_ascb_timedout;
+			ascb->timer.function = (TIMER_FUNC_TYPE)asd_ascb_timedout;
 			ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
 			add_timer(&ascb->timer);
 		}
diff --git a/drivers/scsi/aic94xx/aic94xx_hwi.h b/drivers/scsi/aic94xx/aic94xx_hwi.h
index 8c1c28239e93..8f147e720cfd 100644
--- a/drivers/scsi/aic94xx/aic94xx_hwi.h
+++ b/drivers/scsi/aic94xx/aic94xx_hwi.h
@@ -291,8 +291,7 @@ static inline void asd_init_ascb(struct asd_ha_struct *asd_ha,
 	INIT_LIST_HEAD(&ascb->list);
 	ascb->scb = ascb->dma_scb.vaddr;
 	ascb->ha = asd_ha;
-	ascb->timer.function = NULL;
-	init_timer(&ascb->timer);
+	timer_setup(&ascb->timer, NULL, 0);
 	ascb->tc_index = -1;
 }
 
@@ -392,7 +391,7 @@ void asd_control_led(struct asd_ha_struct *asd_ha, int phy_id, int op);
 void asd_turn_led(struct asd_ha_struct *asd_ha, int phy_id, int op);
 int  asd_enable_phys(struct asd_ha_struct *asd_ha, const u8 phy_mask);
 
-void asd_ascb_timedout(unsigned long data);
+void asd_ascb_timedout(struct timer_list *t);
 int  asd_chip_hardrst(struct asd_ha_struct *asd_ha);
 
 #endif
diff --git a/drivers/scsi/aic94xx/aic94xx_scb.c b/drivers/scsi/aic94xx/aic94xx_scb.c
index fdac7c2fef37..22873ce8bbfa 100644
--- a/drivers/scsi/aic94xx/aic94xx_scb.c
+++ b/drivers/scsi/aic94xx/aic94xx_scb.c
@@ -866,12 +866,12 @@ void asd_build_initiate_link_adm_task(struct asd_ascb *ascb, int phy_id,
  * Upper layers can implement their own timeout function, say to free
  * resources they have with this SCB, and then call this one at the
  * end of their timeout function.  To do this, one should initialize
- * the ascb->timer.{function, data, expires} prior to calling the post
+ * the ascb->timer.{function, expires} prior to calling the post
  * function. The timer is started by the post function.
  */
-void asd_ascb_timedout(unsigned long data)
+void asd_ascb_timedout(struct timer_list *t)
 {
-	struct asd_ascb *ascb = (void *) data;
+	struct asd_ascb *ascb = from_timer(ascb, t, timer);
 	struct asd_seq_data *seq = &ascb->ha->seq;
 	unsigned long flags;
 
diff --git a/drivers/scsi/aic94xx/aic94xx_tmf.c b/drivers/scsi/aic94xx/aic94xx_tmf.c
index d4c35df3d4ae..4637119c09d8 100644
--- a/drivers/scsi/aic94xx/aic94xx_tmf.c
+++ b/drivers/scsi/aic94xx/aic94xx_tmf.c
@@ -35,15 +35,14 @@
 static int asd_enqueue_internal(struct asd_ascb *ascb,
 		void (*tasklet_complete)(struct asd_ascb *,
 					 struct done_list_struct *),
-				void (*timed_out)(unsigned long))
+				void (*timed_out)(struct timer_list *t))
 {
 	int res;
 
 	ascb->tasklet_complete = tasklet_complete;
 	ascb->uldd_timer = 1;
 
-	ascb->timer.data = (unsigned long) ascb;
-	ascb->timer.function = timed_out;
+	ascb->timer.function = (TIMER_FUNC_TYPE)timed_out;
 	ascb->timer.expires = jiffies + AIC94XX_SCB_TIMEOUT;
 
 	add_timer(&ascb->timer);
@@ -87,9 +86,9 @@ static void asd_clear_nexus_tasklet_complete(struct asd_ascb *ascb,
 	asd_ascb_free(ascb);
 }
 
-static void asd_clear_nexus_timedout(unsigned long data)
+static void asd_clear_nexus_timedout(struct timer_list *t)
 {
-	struct asd_ascb *ascb = (void *)data;
+	struct asd_ascb *ascb = from_timer(ascb, t, timer);
 	struct tasklet_completion_status *tcs = ascb->uldd_task;
 
 	ASD_DPRINTK("%s: here\n", __func__);
@@ -261,9 +260,9 @@ static int asd_clear_nexus_index(struct sas_task *task)
 
 /* ---------- TMFs ---------- */
 
-static void asd_tmf_timedout(unsigned long data)
+static void asd_tmf_timedout(struct timer_list *t)
 {
-	struct asd_ascb *ascb = (void *) data;
+	struct asd_ascb *ascb = from_timer(ascb, t, timer);
 	struct tasklet_completion_status *tcs = ascb->uldd_task;
 
 	ASD_DPRINTK("tmf timed out\n");
diff --git a/drivers/scsi/arm/Makefile b/drivers/scsi/arm/Makefile
index 16c3e86a6b1b..b576d9276f71 100644
--- a/drivers/scsi/arm/Makefile
+++ b/drivers/scsi/arm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for drivers/scsi/arm
 #
diff --git a/drivers/scsi/arm/acornscsi.c b/drivers/scsi/arm/acornscsi.c
index 690816f3c6af..421fe869a11e 100644
--- a/drivers/scsi/arm/acornscsi.c
+++ b/drivers/scsi/arm/acornscsi.c
@@ -2725,9 +2725,9 @@ int acornscsi_abort(struct scsi_cmnd *SCpnt)
  * Params   : SCpnt  - command causing reset
  * Returns  : one of SCSI_RESET_ macros
  */
-int acornscsi_host_reset(struct Scsi_Host *shpnt)
+int acornscsi_host_reset(struct scsi_cmnd *SCpnt)
 {
-	AS_Host *host = (AS_Host *)shpnt->hostdata;
+	AS_Host *host = (AS_Host *)SCpnt->device->host->hostdata;
 	struct scsi_cmnd *SCptr;
     
     host->stats.resets += 1;
@@ -2741,7 +2741,7 @@ int acornscsi_host_reset(struct Scsi_Host *shpnt)
 
 	printk(KERN_WARNING "acornscsi_reset: ");
 	print_sbic_status(asr, ssr, host->scsi.phase);
-	for (devidx = 0; devidx < 9; devidx ++) {
+	for (devidx = 0; devidx < 9; devidx++)
 	    acornscsi_dumplog(host, devidx);
     }
 #endif
diff --git a/drivers/scsi/atp870u.h b/drivers/scsi/atp870u.h
index 9b839b1e895a..75c44399fc88 100644
--- a/drivers/scsi/atp870u.h
+++ b/drivers/scsi/atp870u.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ATP870U_H
 #define _ATP870U_H
 
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 1db21b657800..be96aa1e5077 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5247,12 +5247,11 @@ static void beiscsi_eqd_update_work(struct work_struct *work)
 			      msecs_to_jiffies(BEISCSI_EQD_UPDATE_INTERVAL));
 }
 
-static void beiscsi_hw_tpe_check(unsigned long ptr)
+static void beiscsi_hw_tpe_check(struct timer_list *t)
 {
-	struct beiscsi_hba *phba;
+	struct beiscsi_hba *phba = from_timer(phba, t, hw_check);
 	u32 wait;
 
-	phba = (struct beiscsi_hba *)ptr;
 	/* if not TPE, do nothing */
 	if (!beiscsi_detect_tpe(phba))
 		return;
@@ -5265,11 +5264,10 @@ static void beiscsi_hw_tpe_check(unsigned long ptr)
 			   msecs_to_jiffies(wait));
 }
 
-static void beiscsi_hw_health_check(unsigned long ptr)
+static void beiscsi_hw_health_check(struct timer_list *t)
 {
-	struct beiscsi_hba *phba;
+	struct beiscsi_hba *phba = from_timer(phba, t, hw_check);
 
-	phba = (struct beiscsi_hba *)ptr;
 	beiscsi_detect_ue(phba);
 	if (beiscsi_detect_ue(phba)) {
 		__beiscsi_log(phba, KERN_ERR,
@@ -5281,7 +5279,7 @@ static void beiscsi_hw_health_check(unsigned long ptr)
 		if (!test_bit(BEISCSI_HBA_UER_SUPP, &phba->state))
 			return;
 		/* modify this timer to check TPE */
-		phba->hw_check.function = beiscsi_hw_tpe_check;
+		phba->hw_check.function = (TIMER_FUNC_TYPE)beiscsi_hw_tpe_check;
 	}
 
 	mod_timer(&phba->hw_check,
@@ -5369,7 +5367,7 @@ static int beiscsi_enable_port(struct beiscsi_hba *phba)
 	 * Timer function gets modified for TPE detection.
 	 * Always reinit to do health check first.
 	 */
-	phba->hw_check.function = beiscsi_hw_health_check;
+	phba->hw_check.function = (TIMER_FUNC_TYPE)beiscsi_hw_health_check;
 	mod_timer(&phba->hw_check,
 		  jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
 	return 0;
@@ -5719,9 +5717,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	 * Start UE detection here. UE before this will cause stall in probe
 	 * and eventually fail the probe.
 	 */
-	init_timer(&phba->hw_check);
-	phba->hw_check.function = beiscsi_hw_health_check;
-	phba->hw_check.data = (unsigned long)phba;
+	timer_setup(&phba->hw_check, beiscsi_hw_health_check, 0);
 	mod_timer(&phba->hw_check,
 		  jiffies + msecs_to_jiffies(BEISCSI_UE_DETECT_INTERVAL));
 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
diff --git a/drivers/scsi/bfa/Makefile b/drivers/scsi/bfa/Makefile
index 475cf925d5e8..442fc3db8f1f 100644
--- a/drivers/scsi/bfa/Makefile
+++ b/drivers/scsi/bfa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SCSI_BFA_FC) := bfa.o
 
 bfa-y := bfad.o bfad_im.o bfad_attr.o bfad_debugfs.o bfad_bsg.o
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 6844ba361616..e6b9de7d41ac 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -823,7 +823,7 @@ static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 
 	skb_queue_head_init(&port->fcoe_pending_queue);
 	port->fcoe_pending_queue_active = 0;
-	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long) lport);
+	timer_setup(&port->timer, fcoe_queue_timer, 0);
 
 	fcoe_link_speed_update(lport);
 
@@ -845,9 +845,9 @@ static int bnx2fc_net_config(struct fc_lport *lport, struct net_device *netdev)
 	return 0;
 }
 
-static void bnx2fc_destroy_timer(unsigned long data)
+static void bnx2fc_destroy_timer(struct timer_list *t)
 {
-	struct bnx2fc_hba *hba = (struct bnx2fc_hba *)data;
+	struct bnx2fc_hba *hba = from_timer(hba, t, destroy_timer);
 
 	printk(KERN_ERR PFX "ERROR:bnx2fc_destroy_timer - "
 	       "Destroy compl not received!!\n");
@@ -1946,11 +1946,10 @@ static void bnx2fc_fw_destroy(struct bnx2fc_hba *hba)
 {
 	if (test_and_clear_bit(BNX2FC_FLAG_FW_INIT_DONE, &hba->flags)) {
 		if (bnx2fc_send_fw_fcoe_destroy_msg(hba) == 0) {
-			init_timer(&hba->destroy_timer);
+			timer_setup(&hba->destroy_timer, bnx2fc_destroy_timer,
+				    0);
 			hba->destroy_timer.expires = BNX2FC_FW_TIMEOUT +
 								jiffies;
-			hba->destroy_timer.function = bnx2fc_destroy_timer;
-			hba->destroy_timer.data = (unsigned long)hba;
 			add_timer(&hba->destroy_timer);
 			wait_event_interruptible(hba->destroy_wait,
 					test_bit(BNX2FC_FLAG_DESTROY_CMPL,
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index 89ef1a1678d1..663a63d4dae4 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -858,7 +858,7 @@ extern int bnx2i_alloc_qp_resc(struct bnx2i_hba *hba,
 			       struct bnx2i_endpoint *ep);
 extern void bnx2i_free_qp_resc(struct bnx2i_hba *hba,
 			       struct bnx2i_endpoint *ep);
-extern void bnx2i_ep_ofld_timer(unsigned long data);
+extern void bnx2i_ep_ofld_timer(struct timer_list *t);
 extern struct bnx2i_endpoint *bnx2i_find_ep_in_ofld_list(
 		struct bnx2i_hba *hba, u32 iscsi_cid);
 extern struct bnx2i_endpoint *bnx2i_find_ep_in_destroy_list(
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index e3f22cb4f7fa..e0640e0f259f 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -688,9 +688,9 @@ void bnx2i_update_iscsi_conn(struct iscsi_conn *conn)
  *
  * routine to handle connection offload/destroy request timeout
  */
-void bnx2i_ep_ofld_timer(unsigned long data)
+void bnx2i_ep_ofld_timer(struct timer_list *t)
 {
-	struct bnx2i_endpoint *ep = (struct bnx2i_endpoint *) data;
+	struct bnx2i_endpoint *ep = from_timer(ep, t, ofld_timer);
 
 	if (ep->state == EP_STATE_OFLD_START) {
 		printk(KERN_ALERT "ofld_timer: CONN_OFLD timeout\n");
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index 03c104b47f31..de0a507577ef 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -1611,9 +1611,8 @@ static int bnx2i_conn_start(struct iscsi_cls_conn *cls_conn)
 	 * this should normally not sleep for a long time so it should
 	 * not disrupt the caller.
 	 */
+	timer_setup(&bnx2i_conn->ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
 	bnx2i_conn->ep->ofld_timer.expires = 1 * HZ + jiffies;
-	bnx2i_conn->ep->ofld_timer.function = bnx2i_ep_ofld_timer;
-	bnx2i_conn->ep->ofld_timer.data = (unsigned long) bnx2i_conn->ep;
 	add_timer(&bnx2i_conn->ep->ofld_timer);
 	/* update iSCSI context for this conn, wait for CNIC to complete */
 	wait_event_interruptible(bnx2i_conn->ep->ofld_wait,
@@ -1729,10 +1728,8 @@ static int bnx2i_tear_down_conn(struct bnx2i_hba *hba,
 	}
 
 	ep->state = EP_STATE_CLEANUP_START;
-	init_timer(&ep->ofld_timer);
+	timer_setup(&ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
 	ep->ofld_timer.expires = hba->conn_ctx_destroy_tmo + jiffies;
-	ep->ofld_timer.function = bnx2i_ep_ofld_timer;
-	ep->ofld_timer.data = (unsigned long) ep;
 	add_timer(&ep->ofld_timer);
 
 	bnx2i_ep_destroy_list_add(hba, ep);
@@ -1835,10 +1832,8 @@ static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost,
 	bnx2i_ep->state = EP_STATE_OFLD_START;
 	bnx2i_ep_ofld_list_add(hba, bnx2i_ep);
 
-	init_timer(&bnx2i_ep->ofld_timer);
+	timer_setup(&bnx2i_ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
 	bnx2i_ep->ofld_timer.expires = 2 * HZ + jiffies;
-	bnx2i_ep->ofld_timer.function = bnx2i_ep_ofld_timer;
-	bnx2i_ep->ofld_timer.data = (unsigned long) bnx2i_ep;
 	add_timer(&bnx2i_ep->ofld_timer);
 
 	if (bnx2i_send_conn_ofld_req(hba, bnx2i_ep)) {
@@ -2054,10 +2049,8 @@ int bnx2i_hw_ep_disconnect(struct bnx2i_endpoint *bnx2i_ep)
 		session = conn->session;
 	}
 
-	init_timer(&bnx2i_ep->ofld_timer);
+	timer_setup(&bnx2i_ep->ofld_timer, bnx2i_ep_ofld_timer, 0);
 	bnx2i_ep->ofld_timer.expires = hba->conn_teardown_tmo + jiffies;
-	bnx2i_ep->ofld_timer.function = bnx2i_ep_ofld_timer;
-	bnx2i_ep->ofld_timer.data = (unsigned long) bnx2i_ep;
 	add_timer(&bnx2i_ep->ofld_timer);
 
 	if (!test_bit(BNX2I_CNIC_REGISTERED, &hba->reg_with_cnic))
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c
index 6dc96c8dfe75..d4c2a2e4c5d4 100644
--- a/drivers/scsi/constants.c
+++ b/drivers/scsi/constants.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ASCII values for a number of symbolic constants, printing functions,
  * etc.
diff --git a/drivers/scsi/csiostor/Makefile b/drivers/scsi/csiostor/Makefile
index 3681a3fbd499..d047e22eac0d 100644
--- a/drivers/scsi/csiostor/Makefile
+++ b/drivers/scsi/csiostor/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 ## Chelsio FCoE driver
 #
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 5be0086142ca..0bd1131b6cc9 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -3347,9 +3347,10 @@ csio_mberr_worker(void *data)
  *
  **/
 static void
-csio_hw_mb_timer(uintptr_t data)
+csio_hw_mb_timer(struct timer_list *t)
 {
-	struct csio_hw *hw = (struct csio_hw *)data;
+	struct csio_mbm *mbm = from_timer(mbm, t, timer);
+	struct csio_hw *hw = mbm->hw;
 	struct csio_mb *mbp = NULL;
 
 	spin_lock_irq(&hw->lock);
@@ -3715,9 +3716,9 @@ csio_mgmt_req_lookup(struct csio_mgmtm *mgmtm, struct csio_ioreq *io_req)
  * Return - none.
  */
 static void
-csio_mgmt_tmo_handler(uintptr_t data)
+csio_mgmt_tmo_handler(struct timer_list *t)
 {
-	struct csio_mgmtm *mgmtm = (struct csio_mgmtm *) data;
+	struct csio_mgmtm *mgmtm = from_timer(mgmtm, t, mgmt_timer);
 	struct list_head *tmp;
 	struct csio_ioreq *io_req;
 
@@ -3797,11 +3798,7 @@ csio_mgmtm_cleanup(struct csio_mgmtm *mgmtm)
 static int
 csio_mgmtm_init(struct csio_mgmtm *mgmtm, struct csio_hw *hw)
 {
-	struct timer_list *timer = &mgmtm->mgmt_timer;
-
-	init_timer(timer);
-	timer->function = csio_mgmt_tmo_handler;
-	timer->data = (unsigned long)mgmtm;
+	timer_setup(&mgmtm->mgmt_timer, csio_mgmt_tmo_handler, 0);
 
 	INIT_LIST_HEAD(&mgmtm->active_q);
 	INIT_LIST_HEAD(&mgmtm->cbfn_q);
diff --git a/drivers/scsi/csiostor/csio_mb.c b/drivers/scsi/csiostor/csio_mb.c
index 7e74ec859228..931b1d8f9f3e 100644
--- a/drivers/scsi/csiostor/csio_mb.c
+++ b/drivers/scsi/csiostor/csio_mb.c
@@ -1647,13 +1647,10 @@ csio_mb_cancel_all(struct csio_hw *hw, struct list_head *cbfn_q)
  */
 int
 csio_mbm_init(struct csio_mbm *mbm, struct csio_hw *hw,
-	      void (*timer_fn)(uintptr_t))
+	      void (*timer_fn)(struct timer_list *))
 {
-	struct timer_list *timer = &mbm->timer;
-
-	init_timer(timer);
-	timer->function = timer_fn;
-	timer->data = (unsigned long)hw;
+	mbm->hw = hw;
+	timer_setup(&mbm->timer, timer_fn, 0);
 
 	INIT_LIST_HEAD(&mbm->req_q);
 	INIT_LIST_HEAD(&mbm->cbfn_q);
diff --git a/drivers/scsi/csiostor/csio_mb.h b/drivers/scsi/csiostor/csio_mb.h
index 1bc82d0bc260..a6823df73015 100644
--- a/drivers/scsi/csiostor/csio_mb.h
+++ b/drivers/scsi/csiostor/csio_mb.h
@@ -137,6 +137,7 @@ struct csio_mbm {
 	uint32_t		a_mbox;			/* Async mbox num */
 	uint32_t		intr_idx;		/* Interrupt index */
 	struct timer_list	timer;			/* Mbox timer */
+	struct csio_hw		*hw;			/* Hardware pointer */
 	struct list_head	req_q;			/* Mbox request queue */
 	struct list_head	cbfn_q;			/* Mbox completion q */
 	struct csio_mb		*mcurrent;		/* Current mailbox */
@@ -252,7 +253,7 @@ void csio_mb_process_portparams_rsp(struct csio_hw *hw, struct csio_mb *mbp,
 
 /* MB module functions */
 int csio_mbm_init(struct csio_mbm *, struct csio_hw *,
-			    void (*)(uintptr_t));
+			    void (*)(struct timer_list *));
 void csio_mbm_exit(struct csio_mbm *);
 void csio_mb_intr_enable(struct csio_hw *);
 void csio_mb_intr_disable(struct csio_hw *);
diff --git a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
index 7b09e7ddf35e..babd79361a46 100644
--- a/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
+++ b/drivers/scsi/cxgbi/cxgb3i/cxgb3i.c
@@ -545,10 +545,10 @@ static int act_open_rpl_status_to_errno(int status)
 	}
 }
 
-static void act_open_retry_timer(unsigned long data)
+static void act_open_retry_timer(struct timer_list *t)
 {
+	struct cxgbi_sock *csk = from_timer(csk, t, retry_timer);
 	struct sk_buff *skb;
-	struct cxgbi_sock *csk = (struct cxgbi_sock *)data;
 
 	log_debug(1 << CXGBI_DBG_TOE | 1 << CXGBI_DBG_SOCK,
 		"csk 0x%p,%u,0x%lx,%u.\n",
@@ -586,8 +586,8 @@ static int do_act_open_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
 	cxgbi_sock_get(csk);
 	spin_lock_bh(&csk->lock);
 	if (rpl->status == CPL_ERR_CONN_EXIST &&
-	    csk->retry_timer.function != act_open_retry_timer) {
-		csk->retry_timer.function = act_open_retry_timer;
+	    csk->retry_timer.function != (TIMER_FUNC_TYPE)act_open_retry_timer) {
+		csk->retry_timer.function = (TIMER_FUNC_TYPE)act_open_retry_timer;
 		mod_timer(&csk->retry_timer, jiffies + HZ / 2);
 	} else
 		cxgbi_sock_fail_act_open(csk,
diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index 30d5f0ef29bb..266eddf17a99 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -872,10 +872,10 @@ static int act_open_rpl_status_to_errno(int status)
 	}
 }
 
-static void csk_act_open_retry_timer(unsigned long data)
+static void csk_act_open_retry_timer(struct timer_list *t)
 {
 	struct sk_buff *skb = NULL;
-	struct cxgbi_sock *csk = (struct cxgbi_sock *)data;
+	struct cxgbi_sock *csk = from_timer(csk, t, retry_timer);
 	struct cxgb4_lld_info *lldi = cxgbi_cdev_priv(csk->cdev);
 	void (*send_act_open_func)(struct cxgbi_sock *, struct sk_buff *,
 				   struct l2t_entry *);
@@ -963,8 +963,8 @@ static void do_act_open_rpl(struct cxgbi_device *cdev, struct sk_buff *skb)
 	spin_lock_bh(&csk->lock);
 
 	if (status == CPL_ERR_CONN_EXIST &&
-	    csk->retry_timer.function != csk_act_open_retry_timer) {
-		csk->retry_timer.function = csk_act_open_retry_timer;
+	    csk->retry_timer.function != (TIMER_FUNC_TYPE)csk_act_open_retry_timer) {
+		csk->retry_timer.function = (TIMER_FUNC_TYPE)csk_act_open_retry_timer;
 		mod_timer(&csk->retry_timer, jiffies + HZ / 2);
 	} else
 		cxgbi_sock_fail_act_open(csk,
diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index 858e32e8ad2d..ce1336414e0a 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -572,7 +572,7 @@ static struct cxgbi_sock *cxgbi_sock_create(struct cxgbi_device *cdev)
 	kref_init(&csk->refcnt);
 	skb_queue_head_init(&csk->receive_queue);
 	skb_queue_head_init(&csk->write_queue);
-	setup_timer(&csk->retry_timer, NULL, (unsigned long)csk);
+	timer_setup(&csk->retry_timer, NULL, 0);
 	rwlock_init(&csk->callback_lock);
 	csk->cdev = cdev;
 	csk->flags = 0;
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 5ee7f44cf869..60ef8df42b95 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -395,7 +395,7 @@ static void request_sense(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 		struct ScsiReqBlk *srb);
 static void set_xfer_rate(struct AdapterCtlBlk *acb,
 		struct DeviceCtlBlk *dcb);
-static void waiting_timeout(unsigned long ptr);
+static void waiting_timeout(struct timer_list *t);
 
 
 /*---------------------------------------------------------------------------
@@ -857,9 +857,6 @@ static void waiting_set_timer(struct AdapterCtlBlk *acb, unsigned long to)
 {
 	if (timer_pending(&acb->waiting_timer))
 		return;
-	init_timer(&acb->waiting_timer);
-	acb->waiting_timer.function = waiting_timeout;
-	acb->waiting_timer.data = (unsigned long) acb;
 	if (time_before(jiffies + to, acb->last_reset - HZ / 2))
 		acb->waiting_timer.expires =
 		    acb->last_reset - HZ / 2 + 1;
@@ -936,10 +933,10 @@ static void waiting_process_next(struct AdapterCtlBlk *acb)
 
 
 /* Wake up waiting queue */
-static void waiting_timeout(unsigned long ptr)
+static void waiting_timeout(struct timer_list *t)
 {
 	unsigned long flags;
-	struct AdapterCtlBlk *acb = (struct AdapterCtlBlk *)ptr;
+	struct AdapterCtlBlk *acb = from_timer(acb, t, waiting_timer);
 	dprintkdbg(DBG_1,
 		"waiting_timeout: Queue woken up by timer. acb=%p\n", acb);
 	DC395x_LOCK_IO(acb->scsi_host, flags);
@@ -4366,8 +4363,8 @@ static void adapter_init_params(struct AdapterCtlBlk *acb)
 	INIT_LIST_HEAD(&acb->srb_free_list);
 	/*  temp SRB for Q tag used or abort command used  */
 	acb->tmp_srb = &acb->srb;
-	init_timer(&acb->waiting_timer);
-	init_timer(&acb->selto_timer);
+	timer_setup(&acb->waiting_timer, waiting_timeout, 0);
+	timer_setup(&acb->selto_timer, NULL, 0);
 
 	acb->srb_count = DC395x_MAX_SRB_CNT;
 
diff --git a/drivers/scsi/dc395x.h b/drivers/scsi/dc395x.h
index fbf35e37701e..5379a936141a 100644
--- a/drivers/scsi/dc395x.h
+++ b/drivers/scsi/dc395x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /************************************************************************/
 /*									*/
 /*	dc395x.h							*/
diff --git a/drivers/scsi/eata_generic.h b/drivers/scsi/eata_generic.h
index 5016af5cf860..1a396c5e7f73 100644
--- a/drivers/scsi/eata_generic.h
+++ b/drivers/scsi/eata_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /********************************************************
 * Header file for eata_dma.c and eata_pio.c		*
 * Linux EATA SCSI drivers				*
diff --git a/drivers/scsi/eata_pio.h b/drivers/scsi/eata_pio.h
index 7deeb935748b..5b5e3d13670b 100644
--- a/drivers/scsi/eata_pio.h
+++ b/drivers/scsi/eata_pio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /********************************************************
 * Header file for eata_pio.c Linux EATA-PIO SCSI driver *
 * (c) 1993-96 Michael Neuffer  	                        *
diff --git a/drivers/scsi/esp_scsi.h b/drivers/scsi/esp_scsi.h
index 7e8932ae91f8..8163dca2071b 100644
--- a/drivers/scsi/esp_scsi.h
+++ b/drivers/scsi/esp_scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* esp_scsi.h: Defines and structures for the ESP driver.
  *
  * Copyright (C) 2007 David S. Miller (davem@davemloft.net)
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 77adced58ebf..f46b312d04bc 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -749,7 +749,7 @@ static int fcoe_netdev_config(struct fc_lport *lport, struct net_device *netdev)
 
 	skb_queue_head_init(&port->fcoe_pending_queue);
 	port->fcoe_pending_queue_active = 0;
-	setup_timer(&port->timer, fcoe_queue_timer, (unsigned long)lport);
+	timer_setup(&port->timer, fcoe_queue_timer, 0);
 
 	fcoe_link_speed_update(lport);
 
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c
index 375c536cbc68..1ba5f51713a3 100644
--- a/drivers/scsi/fcoe/fcoe_transport.c
+++ b/drivers/scsi/fcoe/fcoe_transport.c
@@ -455,9 +455,11 @@ EXPORT_SYMBOL_GPL(fcoe_check_wait_queue);
  *
  * Calls fcoe_check_wait_queue on timeout
  */
-void fcoe_queue_timer(ulong lport)
+void fcoe_queue_timer(struct timer_list *t)
 {
-	fcoe_check_wait_queue((struct fc_lport *)lport, NULL);
+	struct fcoe_port *port = from_timer(port, t, timer);
+
+	fcoe_check_wait_queue(port->lport, NULL);
 }
 EXPORT_SYMBOL_GPL(fcoe_queue_timer);
 
diff --git a/drivers/scsi/fcoe/libfcoe.h b/drivers/scsi/fcoe/libfcoe.h
index d3bb16d11401..b8bdfab51a58 100644
--- a/drivers/scsi/fcoe/libfcoe.h
+++ b/drivers/scsi/fcoe/libfcoe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FCOE_LIBFCOE_H_
 #define _FCOE_LIBFCOE_H_
 
diff --git a/drivers/scsi/fnic/Makefile b/drivers/scsi/fnic/Makefile
index 383598fadf04..6214a6b2e96d 100644
--- a/drivers/scsi/fnic/Makefile
+++ b/drivers/scsi/fnic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FCOE_FNIC) += fnic.o
 
 fnic-y	:= \
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index a4473356a9dc..c35f05c4c6bb 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -3705,7 +3705,7 @@ static void gdth_log_event(gdth_evt_data *dvr, char *buffer)
 #ifdef GDTH_STATISTICS
 static u8	gdth_timer_running;
 
-static void gdth_timeout(unsigned long data)
+static void gdth_timeout(struct timer_list *unused)
 {
     u32 i;
     Scsi_Cmnd *nscp;
@@ -3743,8 +3743,6 @@ static void gdth_timer_init(void)
 	gdth_timer_running = 1;
 	TRACE2(("gdth_detect(): Initializing timer !\n"));
 	gdth_timer.expires = jiffies + HZ;
-	gdth_timer.data = 0L;
-	gdth_timer.function = gdth_timeout;
 	add_timer(&gdth_timer);
 }
 #else
@@ -5165,7 +5163,7 @@ static int __init gdth_init(void)
 	/* initializations */
 	gdth_polling = TRUE;
 	gdth_clear_events();
-	init_timer(&gdth_timer);
+	timer_setup(&gdth_timer, gdth_timeout, 0);
 
 	/* As default we do not probe for EISA or ISA controllers */
 	if (probe_eisa_isa) {
diff --git a/drivers/scsi/gdth.h b/drivers/scsi/gdth.h
index 3fd8b83ffbf9..95fc720c1b30 100644
--- a/drivers/scsi/gdth.h
+++ b/drivers/scsi/gdth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GDTH_H
 #define _GDTH_H
 
diff --git a/drivers/scsi/gdth_ioctl.h b/drivers/scsi/gdth_ioctl.h
index b004c6165887..4c91894ac244 100644
--- a/drivers/scsi/gdth_ioctl.h
+++ b/drivers/scsi/gdth_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GDTH_IOCTL_H
 #define _GDTH_IOCTL_H
 
diff --git a/drivers/scsi/gdth_proc.c b/drivers/scsi/gdth_proc.c
index d08b2716752c..20add49cdd32 100644
--- a/drivers/scsi/gdth_proc.c
+++ b/drivers/scsi/gdth_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* gdth_proc.c 
  * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $
  */
diff --git a/drivers/scsi/gdth_proc.h b/drivers/scsi/gdth_proc.h
index aaa618198972..d7d0aa283695 100644
--- a/drivers/scsi/gdth_proc.h
+++ b/drivers/scsi/gdth_proc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GDTH_PROC_H
 #define _GDTH_PROC_H
 
diff --git a/drivers/scsi/gvp11.h b/drivers/scsi/gvp11.h
index 852913cde5dd..61c1a3584461 100644
--- a/drivers/scsi/gvp11.h
+++ b/drivers/scsi/gvp11.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GVP11_H
 
 /* $Id: gvp11.h,v 1.4 1997/01/19 23:07:12 davem Exp $
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index c5fd545030e2..83357b0367d8 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -104,7 +104,6 @@ struct hisi_sas_phy {
 	struct hisi_sas_port	*port;
 	struct asd_sas_phy	sas_phy;
 	struct sas_identify	identify;
-	struct timer_list	timer;
 	struct work_struct	phyup_ws;
 	u64		port_id; /* from hw */
 	u64		dev_sas_addr;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 4cbb9992cb88..61a85ff8e459 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -633,7 +633,6 @@ static void hisi_sas_phy_init(struct hisi_hba *hisi_hba, int phy_no)
 
 	phy->hisi_hba = hisi_hba;
 	phy->port = NULL;
-	init_timer(&phy->timer);
 	sas_phy->enabled = (phy_no < hisi_hba->n_phy) ? 1 : 0;
 	sas_phy->class = SAS;
 	sas_phy->iproto = SAS_PROTOCOL_ALL;
@@ -798,9 +797,10 @@ static void hisi_sas_task_done(struct sas_task *task)
 	complete(&task->slow_task->completion);
 }
 
-static void hisi_sas_tmf_timedout(unsigned long data)
+static void hisi_sas_tmf_timedout(struct timer_list *t)
 {
-	struct sas_task *task = (struct sas_task *)data;
+	struct sas_task_slow *slow = from_timer(slow, t, timer);
+	struct sas_task *task = slow->task;
 	unsigned long flags;
 
 	spin_lock_irqsave(&task->task_state_lock, flags);
@@ -839,8 +839,7 @@ static int hisi_sas_exec_internal_tmf_task(struct domain_device *device,
 		}
 		task->task_done = hisi_sas_task_done;
 
-		task->slow_task->timer.data = (unsigned long) task;
-		task->slow_task->timer.function = hisi_sas_tmf_timedout;
+		task->slow_task->timer.function = (TIMER_FUNC_TYPE)hisi_sas_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + TASK_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
@@ -1452,8 +1451,7 @@ hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
 	task->dev = device;
 	task->task_proto = device->tproto;
 	task->task_done = hisi_sas_task_done;
-	task->slow_task->timer.data = (unsigned long)task;
-	task->slow_task->timer.function = hisi_sas_tmf_timedout;
+	task->slow_task->timer.function = (TIMER_FUNC_TYPE)hisi_sas_tmf_timedout;
 	task->slow_task->timer.expires = jiffies + msecs_to_jiffies(110);
 	add_timer(&task->slow_task->timer);
 
@@ -1895,7 +1893,7 @@ static struct Scsi_Host *hisi_sas_shost_alloc(struct platform_device *pdev,
 	hisi_hba->shost = shost;
 	SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
 
-	init_timer(&hisi_hba->timer);
+	timer_setup(&hisi_hba->timer, NULL, 0);
 
 	if (hisi_sas_get_fw_info(hisi_hba) < 0)
 		goto err_out;
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
index 00b5ee4e49d3..dc6eca8d6afd 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c
@@ -807,9 +807,9 @@ static void phy_hard_reset_v1_hw(struct hisi_hba *hisi_hba, int phy_no)
 	start_phy_v1_hw(hisi_hba, phy_no);
 }
 
-static void start_phys_v1_hw(unsigned long data)
+static void start_phys_v1_hw(struct timer_list *t)
 {
-	struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
+	struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
 	int i;
 
 	for (i = 0; i < hisi_hba->n_phy; i++) {
@@ -828,7 +828,7 @@ static void phys_init_v1_hw(struct hisi_hba *hisi_hba)
 		hisi_sas_phy_read32(hisi_hba, i, CHL_INT2_MSK);
 	}
 
-	setup_timer(timer, start_phys_v1_hw, (unsigned long)hisi_hba);
+	timer_setup(timer, start_phys_v1_hw, 0);
 	mod_timer(timer, jiffies + HZ);
 }
 
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
index 4a740da85549..d02c2a791981 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c
@@ -708,7 +708,7 @@ enum {
 #define ERR_ON_RX_PHASE(err_phase) (err_phase == 0x10 || \
 		err_phase == 0x20 || err_phase == 0x40)
 
-static void link_timeout_disable_link(unsigned long data);
+static void link_timeout_disable_link(struct timer_list *t);
 
 static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
 {
@@ -1251,9 +1251,9 @@ static void init_reg_v2_hw(struct hisi_hba *hisi_hba)
 			 upper_32_bits(hisi_hba->initial_fis_dma));
 }
 
-static void link_timeout_enable_link(unsigned long data)
+static void link_timeout_enable_link(struct timer_list *t)
 {
-	struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
+	struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
 	int i, reg_val;
 
 	for (i = 0; i < hisi_hba->n_phy; i++) {
@@ -1268,13 +1268,13 @@ static void link_timeout_enable_link(unsigned long data)
 		}
 	}
 
-	hisi_hba->timer.function = link_timeout_disable_link;
+	hisi_hba->timer.function = (TIMER_FUNC_TYPE)link_timeout_disable_link;
 	mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(900));
 }
 
-static void link_timeout_disable_link(unsigned long data)
+static void link_timeout_disable_link(struct timer_list *t)
 {
-	struct hisi_hba *hisi_hba = (struct hisi_hba *)data;
+	struct hisi_hba *hisi_hba = from_timer(hisi_hba, t, timer);
 	int i, reg_val;
 
 	reg_val = hisi_sas_read32(hisi_hba, PHY_STATE);
@@ -1289,14 +1289,13 @@ static void link_timeout_disable_link(unsigned long data)
 		}
 	}
 
-	hisi_hba->timer.function = link_timeout_enable_link;
+	hisi_hba->timer.function = (TIMER_FUNC_TYPE)link_timeout_enable_link;
 	mod_timer(&hisi_hba->timer, jiffies + msecs_to_jiffies(100));
 }
 
 static void set_link_timer_quirk(struct hisi_hba *hisi_hba)
 {
-	hisi_hba->timer.data = (unsigned long)hisi_hba;
-	hisi_hba->timer.function = link_timeout_disable_link;
+	hisi_hba->timer.function = (TIMER_FUNC_TYPE)link_timeout_disable_link;
 	hisi_hba->timer.expires = jiffies + msecs_to_jiffies(1000);
 	add_timer(&hisi_hba->timer);
 }
@@ -2557,9 +2556,9 @@ static int prep_ata_v2_hw(struct hisi_hba *hisi_hba,
 	return 0;
 }
 
-static void hisi_sas_internal_abort_quirk_timeout(unsigned long data)
+static void hisi_sas_internal_abort_quirk_timeout(struct timer_list *t)
 {
-	struct hisi_sas_slot *slot = (struct hisi_sas_slot *)data;
+	struct hisi_sas_slot *slot = from_timer(slot, t, internal_abort_timer);
 	struct hisi_sas_port *port = slot->port;
 	struct asd_sas_port *asd_sas_port;
 	struct asd_sas_phy *sas_phy;
@@ -2602,8 +2601,7 @@ static int prep_abort_v2_hw(struct hisi_hba *hisi_hba,
 	struct timer_list *timer = &slot->internal_abort_timer;
 
 	/* setup the quirk timer */
-	setup_timer(timer, hisi_sas_internal_abort_quirk_timeout,
-		    (unsigned long)slot);
+	timer_setup(timer, hisi_sas_internal_abort_quirk_timeout, 0);
 	/* Set the timeout to 10ms less than internal abort timeout */
 	mod_timer(timer, jiffies + msecs_to_jiffies(100));
 
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index d1bf5af26ccb..19b1f2ffec17 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -1993,7 +1993,7 @@ hisi_sas_shost_alloc_pci(struct pci_dev *pdev)
 	hisi_hba->shost = shost;
 	SHOST_TO_SAS_HA(shost) = &hisi_hba->sha;
 
-	init_timer(&hisi_hba->timer);
+	timer_setup(&hisi_hba->timer, NULL, 0);
 
 	if (hisi_sas_get_fw_info(hisi_hba) < 0)
 		goto err_out;
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index e514489c15c5..287e5eb0723f 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4228,7 +4228,7 @@ static int hpsa_set_local_logical_count(struct ctlr_info *h,
 	memset(id_ctlr, 0, sizeof(*id_ctlr));
 	rc = hpsa_bmic_id_controller(h, id_ctlr, sizeof(*id_ctlr));
 	if (!rc)
-		if (id_ctlr->configured_logical_drive_count < 256)
+		if (id_ctlr->configured_logical_drive_count < 255)
 			*nlocals = id_ctlr->configured_logical_drive_count;
 		else
 			*nlocals = le16_to_cpu(
diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index b491af31a5f8..0d2f7eb3acb6 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c
@@ -1393,8 +1393,9 @@ static int ibmvfc_map_sg_data(struct scsi_cmnd *scmd,
  *
  * Called when an internally generated command times out
  **/
-static void ibmvfc_timeout(struct ibmvfc_event *evt)
+static void ibmvfc_timeout(struct timer_list *t)
 {
+	struct ibmvfc_event *evt = from_timer(evt, t, timer);
 	struct ibmvfc_host *vhost = evt->vhost;
 	dev_err(vhost->dev, "Command timed out (%p). Resetting connection\n", evt);
 	ibmvfc_reset_host(vhost);
@@ -1424,12 +1425,10 @@ static int ibmvfc_send_event(struct ibmvfc_event *evt,
 		BUG();
 
 	list_add_tail(&evt->queue, &vhost->sent);
-	init_timer(&evt->timer);
+	timer_setup(&evt->timer, ibmvfc_timeout, 0);
 
 	if (timeout) {
-		evt->timer.data = (unsigned long) evt;
 		evt->timer.expires = jiffies + (timeout * HZ);
-		evt->timer.function = (void (*)(unsigned long))ibmvfc_timeout;
 		add_timer(&evt->timer);
 	}
 
@@ -3692,8 +3691,9 @@ static void ibmvfc_tgt_adisc_cancel_done(struct ibmvfc_event *evt)
  * out, reset the CRQ. When the ADISC comes back as cancelled,
  * log back into the target.
  **/
-static void ibmvfc_adisc_timeout(struct ibmvfc_target *tgt)
+static void ibmvfc_adisc_timeout(struct timer_list *t)
 {
+	struct ibmvfc_target *tgt = from_timer(tgt, t, timer);
 	struct ibmvfc_host *vhost = tgt->vhost;
 	struct ibmvfc_event *evt;
 	struct ibmvfc_tmf *tmf;
@@ -3778,9 +3778,7 @@ static void ibmvfc_tgt_adisc(struct ibmvfc_target *tgt)
 	if (timer_pending(&tgt->timer))
 		mod_timer(&tgt->timer, jiffies + (IBMVFC_ADISC_TIMEOUT * HZ));
 	else {
-		tgt->timer.data = (unsigned long) tgt;
 		tgt->timer.expires = jiffies + (IBMVFC_ADISC_TIMEOUT * HZ);
-		tgt->timer.function = (void (*)(unsigned long))ibmvfc_adisc_timeout;
 		add_timer(&tgt->timer);
 	}
 
@@ -3912,7 +3910,7 @@ static int ibmvfc_alloc_target(struct ibmvfc_host *vhost, u64 scsi_id)
 	tgt->vhost = vhost;
 	tgt->need_login = 1;
 	tgt->cancel_key = vhost->task_set++;
-	init_timer(&tgt->timer);
+	timer_setup(&tgt->timer, ibmvfc_adisc_timeout, 0);
 	kref_init(&tgt->kref);
 	ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout);
 	spin_lock_irqsave(vhost->host->host_lock, flags);
diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 7d156b161482..17df76f0be3c 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -837,8 +837,9 @@ static void ibmvscsi_reset_host(struct ibmvscsi_host_data *hostdata)
  *
  * Called when an internally generated command times out
 */
-static void ibmvscsi_timeout(struct srp_event_struct *evt_struct)
+static void ibmvscsi_timeout(struct timer_list *t)
 {
+	struct srp_event_struct *evt_struct = from_timer(evt_struct, t, timer);
 	struct ibmvscsi_host_data *hostdata = evt_struct->hostdata;
 
 	dev_err(hostdata->dev, "Command timed out (%x). Resetting connection\n",
@@ -927,11 +928,9 @@ static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
 	 */
 	list_add_tail(&evt_struct->list, &hostdata->sent);
 
-	init_timer(&evt_struct->timer);
+	timer_setup(&evt_struct->timer, ibmvscsi_timeout, 0);
 	if (timeout) {
-		evt_struct->timer.data = (unsigned long) evt_struct;
 		evt_struct->timer.expires = jiffies + (timeout * HZ);
-		evt_struct->timer.function = (void (*)(unsigned long))ibmvscsi_timeout;
 		add_timer(&evt_struct->timer);
 	}
 
diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
index 785fb42f6650..2799a6b08f73 100644
--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
@@ -3767,7 +3767,7 @@ static int ibmvscsis_write_pending(struct se_cmd *se_cmd)
 	 */
 	if ((vscsi->flags & (CLIENT_FAILED | RESPONSE_Q_DOWN))) {
 		pr_err("write_pending failed since: %d\n", vscsi->flags);
-		return 0;
+		return -EIO;
 	}
 
 	rc = srp_transfer_data(cmd, &vio_iu(iue)->srp.cmd, ibmvscsis_rdma,
diff --git a/drivers/scsi/ibmvscsi_tgt/libsrp.h b/drivers/scsi/ibmvscsi_tgt/libsrp.h
index 9fec55b36322..832606ae2908 100644
--- a/drivers/scsi/ibmvscsi_tgt/libsrp.h
+++ b/drivers/scsi/ibmvscsi_tgt/libsrp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LIBSRP_H__
 #define __LIBSRP_H__
 
diff --git a/drivers/scsi/imm.h b/drivers/scsi/imm.h
index 8f6f32fc61ff..7f2bb35b1b87 100644
--- a/drivers/scsi/imm.h
+++ b/drivers/scsi/imm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*  Driver for the Iomega MatchMaker parallel port SCSI HBA embedded in 
  * the Iomega ZIP Plus drive
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index f838bd73befa..d53429371127 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -694,7 +694,7 @@ static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd,
 	ipr_cmd->sibling = NULL;
 	ipr_cmd->eh_comp = NULL;
 	ipr_cmd->fast_done = fast_done;
-	init_timer(&ipr_cmd->timer);
+	timer_setup(&ipr_cmd->timer, NULL, 0);
 }
 
 /**
@@ -990,15 +990,14 @@ static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
  **/
 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
 		       void (*done) (struct ipr_cmnd *),
-		       void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
+		       void (*timeout_func) (struct timer_list *), u32 timeout)
 {
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
 
 	ipr_cmd->done = done;
 
-	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + timeout;
-	ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
+	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)timeout_func;
 
 	add_timer(&ipr_cmd->timer);
 
@@ -1080,7 +1079,7 @@ static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
  * 	none
  **/
 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
-				  void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
+				  void (*timeout_func) (struct timer_list *),
 				  u32 timeout)
 {
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
@@ -2664,8 +2663,9 @@ static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_timeout(struct timer_list *t)
 {
+	struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
 	unsigned long lock_flags = 0;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
@@ -2696,8 +2696,9 @@ static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_oper_timeout(struct timer_list *t)
 {
+	struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
 	unsigned long lock_flags = 0;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 
@@ -5449,8 +5450,9 @@ static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
  * Return value:
  *	none
  **/
-static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
+static void ipr_abort_timeout(struct timer_list *t)
 {
+	struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
 	struct ipr_cmnd *reset_cmd;
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 	struct ipr_cmd_pkt *cmd_pkt;
@@ -8271,8 +8273,9 @@ static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
  * Return value:
  * 	none
  **/
-static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
+static void ipr_reset_timer_done(struct timer_list *t)
 {
+	struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer);
 	struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
 	unsigned long lock_flags = 0;
 
@@ -8308,9 +8311,8 @@ static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
 	ipr_cmd->done = ipr_reset_ioa_job;
 
-	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + timeout;
-	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
+	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_reset_timer_done;
 	add_timer(&ipr_cmd->timer);
 }
 
@@ -8394,9 +8396,8 @@ static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
 		}
 	}
 
-	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + stage_time * HZ;
-	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_oper_timeout;
 	ipr_cmd->done = ipr_reset_ioa_job;
 	add_timer(&ipr_cmd->timer);
 
@@ -8466,9 +8467,8 @@ static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
 		return IPR_RC_JOB_CONTINUE;
 	}
 
-	ipr_cmd->timer.data = (unsigned long) ipr_cmd;
 	ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
-	ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
+	ipr_cmd->timer.function = (TIMER_FUNC_TYPE)ipr_oper_timeout;
 	ipr_cmd->done = ipr_reset_ioa_job;
 	add_timer(&ipr_cmd->timer);
 	list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q);
diff --git a/drivers/scsi/isci/Makefile b/drivers/scsi/isci/Makefile
index 3359e10e0d8f..da6f04cae272 100644
--- a/drivers/scsi/isci/Makefile
+++ b/drivers/scsi/isci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SCSI_ISCI) += isci.o
 isci-objs := init.o phy.o request.o \
 	     remote_device.o port.o \
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 609dafd661d1..13b37cdffa8e 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -958,9 +958,9 @@ static enum sci_status sci_controller_start_next_phy(struct isci_host *ihost)
 	return status;
 }
 
-static void phy_startup_timeout(unsigned long data)
+static void phy_startup_timeout(struct timer_list *t)
 {
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct isci_host *ihost = container_of(tmr, typeof(*ihost), phy_timer);
 	unsigned long flags;
 	enum sci_status status;
@@ -1592,9 +1592,9 @@ static const struct sci_base_state sci_controller_state_table[] = {
 	[SCIC_FAILED] = {}
 };
 
-static void controller_timeout(unsigned long data)
+static void controller_timeout(struct timer_list *t)
 {
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct isci_host *ihost = container_of(tmr, typeof(*ihost), timer);
 	struct sci_base_state_machine *sm = &ihost->sm;
 	unsigned long flags;
@@ -1737,9 +1737,9 @@ static u8 max_spin_up(struct isci_host *ihost)
 			     MAX_CONCURRENT_DEVICE_SPIN_UP_COUNT);
 }
 
-static void power_control_timeout(unsigned long data)
+static void power_control_timeout(struct timer_list *t)
 {
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct isci_host *ihost = container_of(tmr, typeof(*ihost), power_control.timer);
 	struct isci_phy *iphy;
 	unsigned long flags;
diff --git a/drivers/scsi/isci/isci.h b/drivers/scsi/isci/isci.h
index 234ab46fce33..680e30947671 100644
--- a/drivers/scsi/isci/isci.h
+++ b/drivers/scsi/isci/isci.h
@@ -498,12 +498,10 @@ struct sci_timer {
 };
 
 static inline
-void sci_init_timer(struct sci_timer *tmr, void (*fn)(unsigned long))
+void sci_init_timer(struct sci_timer *tmr, void (*fn)(struct timer_list *t))
 {
-	tmr->timer.function = fn;
-	tmr->timer.data = (unsigned long) tmr;
 	tmr->cancel = 0;
-	init_timer(&tmr->timer);
+	timer_setup(&tmr->timer, fn, 0);
 }
 
 static inline void sci_mod_timer(struct sci_timer *tmr, unsigned long msec)
diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c
index cb87b2ef7c92..1deca8c5a94f 100644
--- a/drivers/scsi/isci/phy.c
+++ b/drivers/scsi/isci/phy.c
@@ -315,9 +315,9 @@ sci_phy_link_layer_initialization(struct isci_phy *iphy,
 	return SCI_SUCCESS;
 }
 
-static void phy_sata_timeout(unsigned long data)
+static void phy_sata_timeout(struct timer_list *t)
 {
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct isci_phy *iphy = container_of(tmr, typeof(*iphy), sata_timer);
 	struct isci_host *ihost = iphy->owning_port->owning_controller;
 	unsigned long flags;
diff --git a/drivers/scsi/isci/port.c b/drivers/scsi/isci/port.c
index a4dd5c91508c..1df45f028ea7 100644
--- a/drivers/scsi/isci/port.c
+++ b/drivers/scsi/isci/port.c
@@ -769,9 +769,9 @@ bool sci_port_link_detected(struct isci_port *iport, struct isci_phy *iphy)
 	return true;
 }
 
-static void port_timeout(unsigned long data)
+static void port_timeout(struct timer_list *t)
 {
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct isci_port *iport = container_of(tmr, typeof(*iport), timer);
 	struct isci_host *ihost = iport->owning_controller;
 	unsigned long flags;
diff --git a/drivers/scsi/isci/port_config.c b/drivers/scsi/isci/port_config.c
index ac879745ef80..edb7be786c65 100644
--- a/drivers/scsi/isci/port_config.c
+++ b/drivers/scsi/isci/port_config.c
@@ -319,10 +319,10 @@ sci_mpc_agent_validate_phy_configuration(struct isci_host *ihost,
 	return sci_port_configuration_agent_validate_ports(ihost, port_agent);
 }
 
-static void mpc_agent_timeout(unsigned long data)
+static void mpc_agent_timeout(struct timer_list *t)
 {
 	u8 index;
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct sci_port_configuration_agent *port_agent;
 	struct isci_host *ihost;
 	unsigned long flags;
@@ -654,10 +654,10 @@ static void sci_apc_agent_link_down(
 }
 
 /* configure the phys into ports when the timer fires */
-static void apc_agent_timeout(unsigned long data)
+static void apc_agent_timeout(struct timer_list *t)
 {
 	u32 index;
-	struct sci_timer *tmr = (struct sci_timer *)data;
+	struct sci_timer *tmr = from_timer(tmr, t, timer);
 	struct sci_port_configuration_agent *port_agent;
 	struct isci_host *ihost;
 	unsigned long flags;
diff --git a/drivers/scsi/libfc/Makefile b/drivers/scsi/libfc/Makefile
index 4bb23ac86a5c..65396f86c307 100644
--- a/drivers/scsi/libfc/Makefile
+++ b/drivers/scsi/libfc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # $Id: Makefile
 
 obj-$(CONFIG_LIBFC) += libfc.o
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 772c35a5c49e..1a4e701a8449 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -97,7 +97,7 @@ static void fc_fcp_complete_locked(struct fc_fcp_pkt *);
 static void fc_tm_done(struct fc_seq *, struct fc_frame *, void *);
 static void fc_fcp_error(struct fc_fcp_pkt *, struct fc_frame *);
 static void fc_fcp_recovery(struct fc_fcp_pkt *, u8 code);
-static void fc_fcp_timeout(unsigned long);
+static void fc_fcp_timeout(struct timer_list *);
 static void fc_fcp_rec(struct fc_fcp_pkt *);
 static void fc_fcp_rec_error(struct fc_fcp_pkt *, struct fc_frame *);
 static void fc_fcp_rec_resp(struct fc_seq *, struct fc_frame *, void *);
@@ -155,8 +155,7 @@ static struct fc_fcp_pkt *fc_fcp_pkt_alloc(struct fc_lport *lport, gfp_t gfp)
 		fsp->lp = lport;
 		fsp->xfer_ddp = FC_XID_UNKNOWN;
 		refcount_set(&fsp->ref_cnt, 1);
-		init_timer(&fsp->timer);
-		fsp->timer.data = (unsigned long)fsp;
+		timer_setup(&fsp->timer, NULL, 0);
 		INIT_LIST_HEAD(&fsp->list);
 		spin_lock_init(&fsp->scsi_pkt_lock);
 	} else {
@@ -1215,7 +1214,7 @@ static int fc_fcp_cmd_send(struct fc_lport *lport, struct fc_fcp_pkt *fsp,
 	fsp->seq_ptr = seq;
 	fc_fcp_pkt_hold(fsp);	/* hold for fc_fcp_pkt_destroy */
 
-	setup_timer(&fsp->timer, fc_fcp_timeout, (unsigned long)fsp);
+	fsp->timer.function = (TIMER_FUNC_TYPE)fc_fcp_timeout;
 	if (rpriv->flags & FC_RP_FLAGS_REC_SUPPORTED)
 		fc_fcp_timer_set(fsp, get_fsp_rec_tov(fsp));
 
@@ -1298,9 +1297,9 @@ static int fc_fcp_pkt_abort(struct fc_fcp_pkt *fsp)
  * fc_lun_reset_send() - Send LUN reset command
  * @data: The FCP packet that identifies the LUN to be reset
  */
-static void fc_lun_reset_send(unsigned long data)
+static void fc_lun_reset_send(struct timer_list *t)
 {
-	struct fc_fcp_pkt *fsp = (struct fc_fcp_pkt *)data;
+	struct fc_fcp_pkt *fsp = from_timer(fsp, t, timer);
 	struct fc_lport *lport = fsp->lp;
 
 	if (lport->tt.fcp_cmd_send(lport, fsp, fc_tm_done)) {
@@ -1308,7 +1307,7 @@ static void fc_lun_reset_send(unsigned long data)
 			return;
 		if (fc_fcp_lock_pkt(fsp))
 			return;
-		setup_timer(&fsp->timer, fc_lun_reset_send, (unsigned long)fsp);
+		fsp->timer.function = (TIMER_FUNC_TYPE)fc_lun_reset_send;
 		fc_fcp_timer_set(fsp, get_fsp_rec_tov(fsp));
 		fc_fcp_unlock_pkt(fsp);
 	}
@@ -1334,7 +1333,7 @@ static int fc_lun_reset(struct fc_lport *lport, struct fc_fcp_pkt *fsp,
 	fsp->wait_for_comp = 1;
 	init_completion(&fsp->tm_done);
 
-	fc_lun_reset_send((unsigned long)fsp);
+	fc_lun_reset_send(&fsp->timer);
 
 	/*
 	 * wait for completion of reset
@@ -1431,9 +1430,9 @@ static void fc_fcp_cleanup(struct fc_lport *lport)
  * received we see if data was received recently. If it has been then we
  * continue waiting, otherwise, we abort the command.
  */
-static void fc_fcp_timeout(unsigned long data)
+static void fc_fcp_timeout(struct timer_list *t)
 {
-	struct fc_fcp_pkt *fsp = (struct fc_fcp_pkt *)data;
+	struct fc_fcp_pkt *fsp = from_timer(fsp, t, timer);
 	struct fc_rport *rport = fsp->rport;
 	struct fc_rport_libfc_priv *rpriv = rport->dd_data;
 
@@ -1446,7 +1445,7 @@ static void fc_fcp_timeout(unsigned long data)
 	if (fsp->lp->qfull) {
 		FC_FCP_DBG(fsp, "fcp timeout, resetting timer delay %d\n",
 			   fsp->timer_delay);
-		setup_timer(&fsp->timer, fc_fcp_timeout, (unsigned long)fsp);
+		fsp->timer.function = (TIMER_FUNC_TYPE)fc_fcp_timeout;
 		fc_fcp_timer_set(fsp, fsp->timer_delay);
 		goto unlock;
 	}
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 520325867e2b..31d31aad3de1 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -383,11 +383,11 @@ static void fc_rport_work(struct work_struct *work)
 				fc_rport_enter_flogi(rdata);
 				mutex_unlock(&rdata->rp_mutex);
 			} else {
+				mutex_unlock(&rdata->rp_mutex);
 				FC_RPORT_DBG(rdata, "work delete\n");
 				mutex_lock(&lport->disc.disc_mutex);
 				list_del_rcu(&rdata->peers);
 				mutex_unlock(&lport->disc.disc_mutex);
-				mutex_unlock(&rdata->rp_mutex);
 				kref_put(&rdata->kref, fc_rport_destroy);
 			}
 		} else {
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index bd4605a34f54..9c50d2d9f27c 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -1728,7 +1728,7 @@ int iscsi_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc)
 
 	if (test_bit(ISCSI_SUSPEND_BIT, &conn->suspend_tx)) {
 		reason = FAILURE_SESSION_IN_RECOVERY;
-		sc->result = DID_REQUEUE;
+		sc->result = DID_REQUEUE << 16;
 		goto fault;
 	}
 
@@ -1805,9 +1805,9 @@ int iscsi_target_alloc(struct scsi_target *starget)
 }
 EXPORT_SYMBOL_GPL(iscsi_target_alloc);
 
-static void iscsi_tmf_timedout(unsigned long data)
+static void iscsi_tmf_timedout(struct timer_list *t)
 {
-	struct iscsi_conn *conn = (struct iscsi_conn *)data;
+	struct iscsi_conn *conn = from_timer(conn, t, tmf_timer);
 	struct iscsi_session *session = conn->session;
 
 	spin_lock(&session->frwd_lock);
@@ -1838,8 +1838,6 @@ static int iscsi_exec_task_mgmt_fn(struct iscsi_conn *conn,
 	}
 	conn->tmfcmd_pdus_cnt++;
 	conn->tmf_timer.expires = timeout * HZ + jiffies;
-	conn->tmf_timer.function = iscsi_tmf_timedout;
-	conn->tmf_timer.data = (unsigned long)conn;
 	add_timer(&conn->tmf_timer);
 	ISCSI_DBG_EH(session, "tmf set timeout\n");
 
@@ -2089,9 +2087,9 @@ done:
 }
 EXPORT_SYMBOL_GPL(iscsi_eh_cmd_timed_out);
 
-static void iscsi_check_transport_timeouts(unsigned long data)
+static void iscsi_check_transport_timeouts(struct timer_list *t)
 {
-	struct iscsi_conn *conn = (struct iscsi_conn *)data;
+	struct iscsi_conn *conn = from_timer(conn, t, transport_timer);
 	struct iscsi_session *session = conn->session;
 	unsigned long recv_timeout, next_timeout = 0, last_recv;
 
@@ -2851,9 +2849,6 @@ EXPORT_SYMBOL_GPL(iscsi_session_setup);
 /**
  * iscsi_session_teardown - destroy session, host, and cls_session
  * @cls_session: iscsi session
- *
- * The driver must have called iscsi_remove_session before
- * calling this.
  */
 void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 {
@@ -2863,6 +2858,8 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 
 	iscsi_pool_free(&session->cmdpool);
 
+	iscsi_remove_session(cls_session);
+
 	kfree(session->password);
 	kfree(session->password_in);
 	kfree(session->username);
@@ -2877,7 +2874,8 @@ void iscsi_session_teardown(struct iscsi_cls_session *cls_session)
 	kfree(session->portal_type);
 	kfree(session->discovery_parent_type);
 
-	iscsi_destroy_session(cls_session);
+	iscsi_free_session(cls_session);
+
 	iscsi_host_dec_session_cnt(shost);
 	module_put(owner);
 }
@@ -2913,9 +2911,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size,
 	conn->exp_statsn = 0;
 	conn->tmf_state = TMF_INITIAL;
 
-	init_timer(&conn->transport_timer);
-	conn->transport_timer.data = (unsigned long)conn;
-	conn->transport_timer.function = iscsi_check_transport_timeouts;
+	timer_setup(&conn->transport_timer, iscsi_check_transport_timeouts, 0);
 
 	INIT_LIST_HEAD(&conn->mgmtqueue);
 	INIT_LIST_HEAD(&conn->cmdqueue);
@@ -2939,7 +2935,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size,
 		goto login_task_data_alloc_fail;
 	conn->login_task->data = conn->data = data;
 
-	init_timer(&conn->tmf_timer);
+	timer_setup(&conn->tmf_timer, iscsi_tmf_timedout, 0);
 	init_waitqueue_head(&conn->ehwait);
 
 	return cls_conn;
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 6b4fd2375178..174e5eff6155 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -41,9 +41,10 @@ static int sas_disable_routing(struct domain_device *dev,  u8 *sas_addr);
 
 /* ---------- SMP task management ---------- */
 
-static void smp_task_timedout(unsigned long _task)
+static void smp_task_timedout(struct timer_list *t)
 {
-	struct sas_task *task = (void *) _task;
+	struct sas_task_slow *slow = from_timer(slow, t, timer);
+	struct sas_task *task = slow->task;
 	unsigned long flags;
 
 	spin_lock_irqsave(&task->task_state_lock, flags);
@@ -91,8 +92,7 @@ static int smp_execute_task_sg(struct domain_device *dev,
 
 		task->task_done = smp_task_done;
 
-		task->slow_task->timer.data = (unsigned long) task;
-		task->slow_task->timer.function = smp_task_timedout;
+		task->slow_task->timer.function = (TIMER_FUNC_TYPE)smp_task_timedout;
 		task->slow_task->timer.expires = jiffies + SMP_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index d3f5b57b3ebf..64fa6f53cb8b 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -66,7 +66,8 @@ struct sas_task *sas_alloc_slow_task(gfp_t flags)
 	}
 
 	task->slow_task = slow;
-	init_timer(&slow->timer);
+	slow->task = task;
+	timer_setup(&slow->timer, NULL, 0);
 	init_completion(&slow->completion);
 
 	return task;
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c
index ea8ad06ff582..91795eb56206 100644
--- a/drivers/scsi/libsas/sas_scsi_host.c
+++ b/drivers/scsi/libsas/sas_scsi_host.c
@@ -919,7 +919,7 @@ void sas_task_abort(struct sas_task *task)
 			return;
 		if (!del_timer(&slow->timer))
 			return;
-		slow->timer.function(slow->timer.data);
+		slow->timer.function((TIMER_DATA_TYPE)&slow->timer);
 		return;
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 4dcd129ca901..82f6e219ee34 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -3248,6 +3248,11 @@ lpfc_update_rport_devloss_tmo(struct lpfc_vport *vport)
 			continue;
 		if (ndlp->rport)
 			ndlp->rport->dev_loss_tmo = vport->cfg_devloss_tmo;
+#if (IS_ENABLED(CONFIG_NVME_FC))
+		if (ndlp->nrport)
+			nvme_fc_set_remoteport_devloss(ndlp->nrport->remoteport,
+						       vport->cfg_devloss_tmo);
+#endif
 	}
 	spin_unlock_irq(shost->host_lock);
 }
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 7e300734b345..4e858b38529a 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -113,7 +113,7 @@ void lpfc_disc_list_loopmap(struct lpfc_vport *);
 void lpfc_disc_start(struct lpfc_vport *);
 void lpfc_cleanup_discovery_resources(struct lpfc_vport *);
 void lpfc_cleanup(struct lpfc_vport *);
-void lpfc_disc_timeout(unsigned long);
+void lpfc_disc_timeout(struct timer_list *);
 
 int lpfc_unregister_fcf_prep(struct lpfc_hba *);
 struct lpfc_nodelist *__lpfc_findnode_rpi(struct lpfc_vport *, uint16_t);
@@ -154,7 +154,7 @@ int lpfc_els_rsp_adisc_acc(struct lpfc_vport *, struct lpfc_iocbq *,
 int lpfc_els_rsp_prli_acc(struct lpfc_vport *, struct lpfc_iocbq *,
 			  struct lpfc_nodelist *);
 void lpfc_cancel_retry_delay_tmo(struct lpfc_vport *, struct lpfc_nodelist *);
-void lpfc_els_retry_delay(unsigned long);
+void lpfc_els_retry_delay(struct timer_list *);
 void lpfc_els_retry_delay_handler(struct lpfc_nodelist *);
 void lpfc_els_unsol_event(struct lpfc_hba *, struct lpfc_sli_ring *,
 			  struct lpfc_iocbq *);
@@ -165,7 +165,7 @@ void lpfc_els_flush_all_cmd(struct lpfc_hba *);
 void lpfc_els_flush_cmd(struct lpfc_vport *);
 int lpfc_els_disc_adisc(struct lpfc_vport *);
 int lpfc_els_disc_plogi(struct lpfc_vport *);
-void lpfc_els_timeout(unsigned long);
+void lpfc_els_timeout(struct timer_list *);
 void lpfc_els_timeout_handler(struct lpfc_vport *);
 struct lpfc_iocbq *lpfc_prep_els_iocb(struct lpfc_vport *, uint8_t, uint16_t,
 				      uint8_t, struct lpfc_nodelist *,
@@ -180,7 +180,7 @@ int lpfc_get_gidft_type(struct lpfc_vport *vport, struct lpfc_iocbq *iocbq);
 int lpfc_ns_cmd(struct lpfc_vport *, int, uint8_t, uint32_t);
 int lpfc_fdmi_cmd(struct lpfc_vport *, struct lpfc_nodelist *, int, uint32_t);
 void lpfc_fdmi_num_disc_check(struct lpfc_vport *);
-void lpfc_delayed_disc_tmo(unsigned long);
+void lpfc_delayed_disc_tmo(struct timer_list *);
 void lpfc_delayed_disc_timeout_handler(struct lpfc_vport *);
 
 int lpfc_config_port_prep(struct lpfc_hba *);
@@ -279,9 +279,9 @@ void lpfc_mem_free(struct lpfc_hba *);
 void lpfc_mem_free_all(struct lpfc_hba *);
 void lpfc_stop_vport_timers(struct lpfc_vport *);
 
-void lpfc_poll_timeout(unsigned long ptr);
+void lpfc_poll_timeout(struct timer_list *t);
 void lpfc_poll_start_timer(struct lpfc_hba *);
-void lpfc_poll_eratt(unsigned long);
+void lpfc_poll_eratt(struct timer_list *);
 int
 lpfc_sli_handle_fast_ring_event(struct lpfc_hba *,
 			struct lpfc_sli_ring *, uint32_t);
@@ -351,7 +351,7 @@ int
 lpfc_sli_abort_taskmgmt(struct lpfc_vport *, struct lpfc_sli_ring *,
 			uint16_t, uint64_t, lpfc_ctx_cmd);
 
-void lpfc_mbox_timeout(unsigned long);
+void lpfc_mbox_timeout(struct timer_list *t);
 void lpfc_mbox_timeout_handler(struct lpfc_hba *);
 
 struct lpfc_nodelist *lpfc_findnode_did(struct lpfc_vport *, uint32_t);
@@ -445,7 +445,7 @@ extern unsigned int lpfc_fcp_look_ahead;
 /* Interface exported by fabric iocb scheduler */
 void lpfc_fabric_abort_nport(struct lpfc_nodelist *);
 void lpfc_fabric_abort_hba(struct lpfc_hba *);
-void lpfc_fabric_block_timeout(unsigned long);
+void lpfc_fabric_block_timeout(struct timer_list *);
 void lpfc_unblock_fabric_iocbs(struct lpfc_hba *);
 void lpfc_rampdown_queue_depth(struct lpfc_hba *);
 void lpfc_ramp_down_queue_handler(struct lpfc_hba *);
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 33417681f5d4..f77673ab4a84 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -2884,9 +2884,9 @@ fdmi_cmd_exit:
  * the worker thread.
  **/
 void
-lpfc_delayed_disc_tmo(unsigned long ptr)
+lpfc_delayed_disc_tmo(struct timer_list *t)
 {
-	struct lpfc_vport *vport = (struct lpfc_vport *)ptr;
+	struct lpfc_vport *vport = from_timer(vport, t, delayed_disc_tmo);
 	struct lpfc_hba   *phba = vport->phba;
 	uint32_t tmo_posted;
 	unsigned long iflag;
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index b14f7c5653cd..39d5b146202e 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -3131,9 +3131,9 @@ lpfc_cancel_retry_delay_tmo(struct lpfc_vport *vport, struct lpfc_nodelist *nlp)
  * to the event associated with the ndlp.
  **/
 void
-lpfc_els_retry_delay(unsigned long ptr)
+lpfc_els_retry_delay(struct timer_list *t)
 {
-	struct lpfc_nodelist *ndlp = (struct lpfc_nodelist *) ptr;
+	struct lpfc_nodelist *ndlp = from_timer(ndlp, t, nlp_delayfunc);
 	struct lpfc_vport *vport = ndlp->vport;
 	struct lpfc_hba   *phba = vport->phba;
 	unsigned long flags;
@@ -7373,9 +7373,9 @@ lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
  * lpfc_els_timeout_handler() to work on the posted event WORKER_ELS_TMO.
  **/
 void
-lpfc_els_timeout(unsigned long ptr)
+lpfc_els_timeout(struct timer_list *t)
 {
-	struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
+	struct lpfc_vport *vport = from_timer(vport, t, els_tmofunc);
 	struct lpfc_hba   *phba = vport->phba;
 	uint32_t tmo_posted;
 	unsigned long iflag;
@@ -9007,9 +9007,9 @@ lpfc_issue_els_npiv_logo(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
  * posted event WORKER_FABRIC_BLOCK_TMO.
  **/
 void
-lpfc_fabric_block_timeout(unsigned long ptr)
+lpfc_fabric_block_timeout(struct timer_list *t)
 {
-	struct lpfc_hba  *phba = (struct lpfc_hba *) ptr;
+	struct lpfc_hba  *phba = from_timer(phba, t, fabric_block_timer);
 	unsigned long iflags;
 	uint32_t tmo_posted;
 
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index d9a03beb76a4..2bafde2b7cfe 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -4371,8 +4371,7 @@ lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 {
 	INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp);
 	INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp);
-	setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay,
-			(unsigned long)ndlp);
+	timer_setup(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, 0);
 	ndlp->nlp_DID = did;
 	ndlp->vport = vport;
 	ndlp->phba = vport->phba;
@@ -5512,9 +5511,9 @@ lpfc_cleanup_discovery_resources(struct lpfc_vport *vport)
  */
 /*****************************************************************************/
 void
-lpfc_disc_timeout(unsigned long ptr)
+lpfc_disc_timeout(struct timer_list *t)
 {
-	struct lpfc_vport *vport = (struct lpfc_vport *) ptr;
+	struct lpfc_vport *vport = from_timer(vport, t, fc_disctmo);
 	struct lpfc_hba   *phba = vport->phba;
 	uint32_t tmo_posted;
 	unsigned long flags = 0;
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 4ffdde5808ee..2b7ea7e53e12 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -1138,13 +1138,13 @@ lpfc_hba_down_post(struct lpfc_hba *phba)
  * be cleared by the worker thread after it has taken the event bitmap out.
  **/
 static void
-lpfc_hb_timeout(unsigned long ptr)
+lpfc_hb_timeout(struct timer_list *t)
 {
 	struct lpfc_hba *phba;
 	uint32_t tmo_posted;
 	unsigned long iflag;
 
-	phba = (struct lpfc_hba *)ptr;
+	phba = from_timer(phba, t, hb_tmofunc);
 
 	/* Check for heart beat timeout conditions */
 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
@@ -1172,12 +1172,12 @@ lpfc_hb_timeout(unsigned long ptr)
  * be cleared by the worker thread after it has taken the event bitmap out.
  **/
 static void
-lpfc_rrq_timeout(unsigned long ptr)
+lpfc_rrq_timeout(struct timer_list *t)
 {
 	struct lpfc_hba *phba;
 	unsigned long iflag;
 
-	phba = (struct lpfc_hba *)ptr;
+	phba = from_timer(phba, t, rrq_tmr);
 	spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
 	if (!(phba->pport->load_flag & FC_UNLOADING))
 		phba->hba_flag |= HBA_RRQ_ACTIVE;
@@ -3940,14 +3940,11 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev)
 	INIT_LIST_HEAD(&vport->rcv_buffer_list);
 	spin_lock_init(&vport->work_port_lock);
 
-	setup_timer(&vport->fc_disctmo, lpfc_disc_timeout,
-			(unsigned long)vport);
+	timer_setup(&vport->fc_disctmo, lpfc_disc_timeout, 0);
 
-	setup_timer(&vport->els_tmofunc, lpfc_els_timeout,
-			(unsigned long)vport);
+	timer_setup(&vport->els_tmofunc, lpfc_els_timeout, 0);
 
-	setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo,
-			(unsigned long)vport);
+	timer_setup(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, 0);
 
 	error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev);
 	if (error)
@@ -4216,9 +4213,9 @@ lpfc_fcf_redisc_wait_start_timer(struct lpfc_hba *phba)
  * worker thread context.
  **/
 static void
-lpfc_sli4_fcf_redisc_wait_tmo(unsigned long ptr)
+lpfc_sli4_fcf_redisc_wait_tmo(struct timer_list *t)
 {
-	struct lpfc_hba *phba = (struct lpfc_hba *)ptr;
+	struct lpfc_hba *phba = from_timer(phba, t, fcf.redisc_wait);
 
 	/* Don't send FCF rediscovery event if timer cancelled */
 	spin_lock_irq(&phba->hbalock);
@@ -5630,15 +5627,13 @@ lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
 	INIT_LIST_HEAD(&phba->luns);
 
 	/* MBOX heartbeat timer */
-	setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba);
+	timer_setup(&psli->mbox_tmo, lpfc_mbox_timeout, 0);
 	/* Fabric block timer */
-	setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout,
-			(unsigned long)phba);
+	timer_setup(&phba->fabric_block_timer, lpfc_fabric_block_timeout, 0);
 	/* EA polling mode timer */
-	setup_timer(&phba->eratt_poll, lpfc_poll_eratt,
-			(unsigned long)phba);
+	timer_setup(&phba->eratt_poll, lpfc_poll_eratt, 0);
 	/* Heartbeat timer */
-	setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba);
+	timer_setup(&phba->hb_tmofunc, lpfc_hb_timeout, 0);
 
 	return 0;
 }
@@ -5664,8 +5659,7 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba)
 	 */
 
 	/* FCP polling mode timer */
-	setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout,
-			(unsigned long)phba);
+	timer_setup(&phba->fcp_poll_timer, lpfc_poll_timeout, 0);
 
 	/* Host attention work mask setup */
 	phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT);
@@ -5835,11 +5829,10 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 	 * Initialize timers used by driver
 	 */
 
-	setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba);
+	timer_setup(&phba->rrq_tmr, lpfc_rrq_timeout, 0);
 
 	/* FCF rediscover timer */
-	setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo,
-			(unsigned long)phba);
+	timer_setup(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, 0);
 
 	/*
 	 * Control structure for handling external multi-buffer mailbox
@@ -6137,6 +6130,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
 				"Extents and RPI headers enabled.\n");
 		}
 		mempool_free(mboxq, phba->mbox_mem_pool);
+		rc = -EIO;
 		goto out_free_bsmbx;
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c
index db1ed426f7e6..517ae570e507 100644
--- a/drivers/scsi/lpfc/lpfc_nvme.c
+++ b/drivers/scsi/lpfc/lpfc_nvme.c
@@ -908,7 +908,7 @@ out_err:
 					 wcqe->total_data_placed);
 			nCmd->transferred_length = 0;
 			nCmd->rcv_rsplen = 0;
-			nCmd->status = NVME_SC_FC_TRANSPORT_ERROR;
+			nCmd->status = NVME_SC_INTERNAL;
 		}
 	}
 
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 1a6f122bb25d..c0cdaef4db24 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4501,9 +4501,9 @@ void lpfc_poll_start_timer(struct lpfc_hba * phba)
  * and FCP Ring interrupt is disable.
  **/
 
-void lpfc_poll_timeout(unsigned long ptr)
+void lpfc_poll_timeout(struct timer_list *t)
 {
-	struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
+	struct lpfc_hba *phba = from_timer(phba, t, fcp_poll_timer);
 
 	if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
 		lpfc_sli_handle_fast_ring_event(phba,
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 98c488ab720b..aecd2399005d 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -3011,13 +3011,13 @@ lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
  * and wake up worker thread to process it. Otherwise, it will set up the
  * Error Attention polling timer for the next poll.
  **/
-void lpfc_poll_eratt(unsigned long ptr)
+void lpfc_poll_eratt(struct timer_list *t)
 {
 	struct lpfc_hba *phba;
 	uint32_t eratt = 0;
 	uint64_t sli_intr, cnt;
 
-	phba = (struct lpfc_hba *)ptr;
+	phba = from_timer(phba, t, eratt_poll);
 
 	/* Here we will also keep track of interrupts per sec of the hba */
 	sli_intr = phba->sli.slistat.sli_intr;
@@ -7174,9 +7174,9 @@ out_free_mbox:
  * done by the worker thread function lpfc_mbox_timeout_handler.
  **/
 void
-lpfc_mbox_timeout(unsigned long ptr)
+lpfc_mbox_timeout(struct timer_list *t)
 {
-	struct lpfc_hba  *phba = (struct lpfc_hba *) ptr;
+	struct lpfc_hba  *phba = from_timer(phba, t, sli.mbox_tmo);
 	unsigned long iflag;
 	uint32_t tmo_posted;
 
diff --git a/drivers/scsi/mac53c94.h b/drivers/scsi/mac53c94.h
index 1ad24e4f0a85..5df6e81f78a8 100644
--- a/drivers/scsi/mac53c94.h
+++ b/drivers/scsi/mac53c94.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mac53c94.h: definitions for the driver for the 53c94 SCSI bus adaptor
  * found on Power Macintosh computers, controlling the external SCSI chain.
diff --git a/drivers/scsi/megaraid.h b/drivers/scsi/megaraid.h
index 508d65e5a518..21eba2fd465a 100644
--- a/drivers/scsi/megaraid.h
+++ b/drivers/scsi/megaraid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MEGARAID_H__
 #define __MEGARAID_H__
 
diff --git a/drivers/scsi/megaraid/Makefile b/drivers/scsi/megaraid/Makefile
index 5826ed509e3e..6e74d21227a5 100644
--- a/drivers/scsi/megaraid/Makefile
+++ b/drivers/scsi/megaraid/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MEGARAID_MM)	+= megaraid_mm.o
 obj-$(CONFIG_MEGARAID_MAILBOX)	+= megaraid_mbox.o
 obj-$(CONFIG_MEGARAID_SAS)	+= megaraid_sas.o
diff --git a/drivers/scsi/megaraid/megaraid_ioctl.h b/drivers/scsi/megaraid/megaraid_ioctl.h
index 05f6e4ec3453..eedcbde46459 100644
--- a/drivers/scsi/megaraid/megaraid_ioctl.h
+++ b/drivers/scsi/megaraid/megaraid_ioctl.h
@@ -19,6 +19,7 @@
 
 #include <linux/types.h>
 #include <linux/semaphore.h>
+#include <linux/timer.h>
 
 #include "mbox_defs.h"
 
@@ -153,6 +154,11 @@ typedef struct uioc {
 
 } __attribute__ ((aligned(1024),packed)) uioc_t;
 
+/* For on-stack uioc timers. */
+struct uioc_timeout {
+	struct timer_list timer;
+	uioc_t		  *uioc;
+};
 
 /**
  * struct mraid_hba_info - information about the controller
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index ec3c43854978..530358cdcb39 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -3904,19 +3904,19 @@ megaraid_sysfs_get_ldmap_done(uioc_t *uioc)
 	wake_up(&raid_dev->sysfs_wait_q);
 }
 
-
 /**
  * megaraid_sysfs_get_ldmap_timeout - timeout handling for get ldmap
- * @data	: timed out packet
+ * @t	: timed out timer
  *
  * Timeout routine to recover and return to application, in case the adapter
  * has stopped responding. A timeout of 60 seconds for this command seems like
  * a good value.
  */
 static void
-megaraid_sysfs_get_ldmap_timeout(unsigned long data)
+megaraid_sysfs_get_ldmap_timeout(struct timer_list *t)
 {
-	uioc_t		*uioc = (uioc_t *)data;
+	struct uioc_timeout *timeout = from_timer(timeout, t, timer);
+	uioc_t		*uioc = timeout->uioc;
 	adapter_t	*adapter = (adapter_t *)uioc->buf_vaddr;
 	mraid_device_t	*raid_dev = ADAP2RAIDDEV(adapter);
 
@@ -3951,8 +3951,7 @@ megaraid_sysfs_get_ldmap(adapter_t *adapter)
 	mbox64_t		*mbox64;
 	mbox_t			*mbox;
 	char			*raw_mbox;
-	struct timer_list	sysfs_timer;
-	struct timer_list	*timerp;
+	struct uioc_timeout	timeout;
 	caddr_t			ldmap;
 	int			rval = 0;
 
@@ -3988,14 +3987,12 @@ megaraid_sysfs_get_ldmap(adapter_t *adapter)
 	/*
 	 * Setup a timer to recover from a non-responding controller
 	 */
-	timerp	= &sysfs_timer;
-	init_timer(timerp);
-
-	timerp->function	= megaraid_sysfs_get_ldmap_timeout;
-	timerp->data		= (unsigned long)uioc;
-	timerp->expires		= jiffies + 60 * HZ;
+	timeout.uioc = uioc;
+	timer_setup_on_stack(&timeout.timer,
+			     megaraid_sysfs_get_ldmap_timeout, 0);
 
-	add_timer(timerp);
+	timeout.timer.expires		= jiffies + 60 * HZ;
+	add_timer(&timeout.timer);
 
 	/*
 	 * Send the command to the firmware
@@ -4033,7 +4030,8 @@ megaraid_sysfs_get_ldmap(adapter_t *adapter)
 	}
 
 
-	del_timer_sync(timerp);
+	del_timer_sync(&timeout.timer);
+	destroy_timer_on_stack(&timeout.timer);
 
 	mutex_unlock(&raid_dev->sysfs_mtx);
 
diff --git a/drivers/scsi/megaraid/megaraid_mm.c b/drivers/scsi/megaraid/megaraid_mm.c
index 65b6f6ace3a5..bb802b0c12b8 100644
--- a/drivers/scsi/megaraid/megaraid_mm.c
+++ b/drivers/scsi/megaraid/megaraid_mm.c
@@ -35,7 +35,7 @@ static int kioc_to_mimd(uioc_t *, mimd_t __user *);
 static int handle_drvrcmd(void __user *, uint8_t, int *);
 static int lld_ioctl(mraid_mmadp_t *, uioc_t *);
 static void ioctl_done(uioc_t *);
-static void lld_timedout(unsigned long);
+static void lld_timedout(struct timer_list *);
 static void hinfo_to_cinfo(mraid_hba_info_t *, mcontroller_t *);
 static mraid_mmadp_t *mraid_mm_get_adapter(mimd_t __user *, int *);
 static uioc_t *mraid_mm_alloc_kioc(mraid_mmadp_t *);
@@ -686,8 +686,7 @@ static int
 lld_ioctl(mraid_mmadp_t *adp, uioc_t *kioc)
 {
 	int			rval;
-	struct timer_list	timer;
-	struct timer_list	*tp = NULL;
+	struct uioc_timeout	timeout = { };
 
 	kioc->status	= -ENODATA;
 	rval		= adp->issue_uioc(adp->drvr_data, kioc, IOCTL_ISSUE);
@@ -698,14 +697,12 @@ lld_ioctl(mraid_mmadp_t *adp, uioc_t *kioc)
 	 * Start the timer
 	 */
 	if (adp->timeout > 0) {
-		tp		= &timer;
-		init_timer(tp);
+		timeout.uioc = kioc;
+		timer_setup_on_stack(&timeout.timer, lld_timedout, 0);
 
-		tp->function	= lld_timedout;
-		tp->data	= (unsigned long)kioc;
-		tp->expires	= jiffies + adp->timeout * HZ;
+		timeout.timer.expires	= jiffies + adp->timeout * HZ;
 
-		add_timer(tp);
+		add_timer(&timeout.timer);
 	}
 
 	/*
@@ -713,8 +710,9 @@ lld_ioctl(mraid_mmadp_t *adp, uioc_t *kioc)
 	 * call, the ioctl either completed successfully or timedout.
 	 */
 	wait_event(wait_q, (kioc->status != -ENODATA));
-	if (tp) {
-		del_timer_sync(tp);
+	if (timeout.timer.function) {
+		del_timer_sync(&timeout.timer);
+		destroy_timer_on_stack(&timeout.timer);
 	}
 
 	/*
@@ -783,12 +781,13 @@ ioctl_done(uioc_t *kioc)
 
 /**
  * lld_timedout	- callback from the expired timer
- * @ptr		: ioctl packet that timed out
+ * @t		: timer that timed out
  */
 static void
-lld_timedout(unsigned long ptr)
+lld_timedout(struct timer_list *t)
 {
-	uioc_t *kioc	= (uioc_t *)ptr;
+	struct uioc_timeout *timeout = from_timer(timeout, t, timer);
+	uioc_t *kioc	= timeout->uioc;
 
 	kioc->status 	= -ETIME;
 	kioc->timedout	= 1;
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 8c19debbd560..cc54bdb5c712 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -2152,22 +2152,19 @@ static void megasas_complete_cmd_dpc(unsigned long instance_addr)
 	megasas_check_and_restore_queue_depth(instance);
 }
 
+static void megasas_sriov_heartbeat_handler(struct timer_list *t);
+
 /**
- * megasas_start_timer - Initializes a timer object
+ * megasas_start_timer - Initializes sriov heartbeat timer object
  * @instance:		Adapter soft state
- * @timer:		timer object to be initialized
- * @fn:			timer function
- * @interval:		time interval between timer function call
  *
  */
-void megasas_start_timer(struct megasas_instance *instance,
-			struct timer_list *timer,
-			void *fn, unsigned long interval)
-{
-	init_timer(timer);
-	timer->expires = jiffies + interval;
-	timer->data = (unsigned long)instance;
-	timer->function = fn;
+void megasas_start_timer(struct megasas_instance *instance)
+{
+	struct timer_list *timer = &instance->sriov_heartbeat_timer;
+
+	timer_setup(timer, megasas_sriov_heartbeat_handler, 0);
+	timer->expires = jiffies + MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF;
 	add_timer(timer);
 }
 
@@ -2555,10 +2552,10 @@ out:
 }
 
 /* Handler for SR-IOV heartbeat */
-void megasas_sriov_heartbeat_handler(unsigned long instance_addr)
+static void megasas_sriov_heartbeat_handler(struct timer_list *t)
 {
 	struct megasas_instance *instance =
-		(struct megasas_instance *)instance_addr;
+		from_timer(instance, t, sriov_heartbeat_timer);
 
 	if (instance->hb_host_mem->HB.fwCounter !=
 	    instance->hb_host_mem->HB.driverCounter) {
@@ -5516,10 +5513,7 @@ static int megasas_init_fw(struct megasas_instance *instance)
 	/* Launch SR-IOV heartbeat timer */
 	if (instance->requestorId) {
 		if (!megasas_sriov_start_heartbeat(instance, 1))
-			megasas_start_timer(instance,
-					    &instance->sriov_heartbeat_timer,
-					    megasas_sriov_heartbeat_handler,
-					    MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
+			megasas_start_timer(instance);
 		else
 			instance->skip_heartbeat_timer_del = 1;
 	}
@@ -6750,10 +6744,7 @@ megasas_resume(struct pci_dev *pdev)
 	/* Re-launch SR-IOV heartbeat timer */
 	if (instance->requestorId) {
 		if (!megasas_sriov_start_heartbeat(instance, 0))
-			megasas_start_timer(instance,
-					    &instance->sriov_heartbeat_timer,
-					    megasas_sriov_heartbeat_handler,
-					    MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
+			megasas_start_timer(instance);
 		else {
 			instance->skip_heartbeat_timer_del = 1;
 			goto fail_init_mfi;
diff --git a/drivers/scsi/megaraid/megaraid_sas_fusion.c b/drivers/scsi/megaraid/megaraid_sas_fusion.c
index 569663bab771..65dc4fea6352 100644
--- a/drivers/scsi/megaraid/megaraid_sas_fusion.c
+++ b/drivers/scsi/megaraid/megaraid_sas_fusion.c
@@ -85,12 +85,9 @@ int megasas_transition_to_ready(struct megasas_instance *instance, int ocr);
 void megaraid_sas_kill_hba(struct megasas_instance *instance);
 
 extern u32 megasas_dbg_lvl;
-void megasas_sriov_heartbeat_handler(unsigned long instance_addr);
 int megasas_sriov_start_heartbeat(struct megasas_instance *instance,
 				  int initial);
-void megasas_start_timer(struct megasas_instance *instance,
-			struct timer_list *timer,
-			 void *fn, unsigned long interval);
+void megasas_start_timer(struct megasas_instance *instance);
 extern struct megasas_mgmt_info megasas_mgmt_info;
 extern unsigned int resetwaittime;
 extern unsigned int dual_qdepth_disable;
@@ -4674,10 +4671,7 @@ transition_to_ready:
 			/* Restart SR-IOV heartbeat */
 			if (instance->requestorId) {
 				if (!megasas_sriov_start_heartbeat(instance, 0))
-					megasas_start_timer(instance,
-							    &instance->sriov_heartbeat_timer,
-							    megasas_sriov_heartbeat_handler,
-							    MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
+					megasas_start_timer(instance);
 				else
 					instance->skip_heartbeat_timer_del = 1;
 			}
@@ -4709,10 +4703,7 @@ fail_kill_adapter:
 	} else {
 		/* For VF: Restart HB timer if we didn't OCR */
 		if (instance->requestorId) {
-			megasas_start_timer(instance,
-					    &instance->sriov_heartbeat_timer,
-					    megasas_sriov_heartbeat_handler,
-					    MEGASAS_SRIOV_HEARTBEAT_INTERVAL_VF);
+			megasas_start_timer(instance);
 		}
 		clear_bit(MEGASAS_FUSION_IN_RESET, &instance->reset_flags);
 		instance->instancet->enable_intr(instance);
diff --git a/drivers/scsi/mesh.h b/drivers/scsi/mesh.h
index 4fdb81fa55e2..ee53c05ace95 100644
--- a/drivers/scsi/mesh.h
+++ b/drivers/scsi/mesh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mesh.h: definitions for the driver for the MESH SCSI bus adaptor
  * (Macintosh Enhanced SCSI Hardware) found on Power Macintosh computers.
diff --git a/drivers/scsi/mpt3sas/Makefile b/drivers/scsi/mpt3sas/Makefile
index b7643f596c1e..84fb3fbdb0ca 100644
--- a/drivers/scsi/mpt3sas/Makefile
+++ b/drivers/scsi/mpt3sas/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # mpt3sas makefile
 obj-$(CONFIG_SCSI_MPT3SAS) += mpt3sas.o
 mpt3sas-y +=  mpt3sas_base.o     \
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2.h b/drivers/scsi/mpt3sas/mpi/mpi2.h
index bc59058e6959..b015c30d2c32 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2015 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
index 0666e716f69a..ee117106d0f7 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_cnfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2015 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_init.h b/drivers/scsi/mpt3sas/mpi/mpi2_init.h
index 7597c24b7ffa..948a3ba682d7 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_init.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2015 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
index 74d682760fbf..cc2aff7aa67b 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_ioc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2015 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_raid.h b/drivers/scsi/mpt3sas/mpi/mpi2_raid.h
index 1c0eeeeb5eaf..b9bb1c178f12 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_raid.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_raid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2014 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_sas.h b/drivers/scsi/mpt3sas/mpi/mpi2_sas.h
index c10c2c02a945..afa17ff246b4 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_sas.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_sas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2015 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
index 4286c9131da9..629296ee9236 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_tool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2000-2014 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mpt3sas/mpi/mpi2_type.h b/drivers/scsi/mpt3sas/mpi/mpi2_type.h
index 92a81abc2c31..36494439a419 100644
--- a/drivers/scsi/mpt3sas/mpi/mpi2_type.h
+++ b/drivers/scsi/mpt3sas/mpi/mpi2_type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright 2000-2014 Avago Technologies.  All rights reserved.
  *
diff --git a/drivers/scsi/mvme147.c b/drivers/scsi/mvme147.c
index 4f515700bdc3..e6b2b681fda3 100644
--- a/drivers/scsi/mvme147.c
+++ b/drivers/scsi/mvme147.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/blkdev.h>
diff --git a/drivers/scsi/mvme147.h b/drivers/scsi/mvme147.h
index bfd4566ef050..f75ff58ddcd0 100644
--- a/drivers/scsi/mvme147.h
+++ b/drivers/scsi/mvme147.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MVME147_H
 
 /* $Id: mvme147.h,v 1.4 1997/01/19 23:07:10 davem Exp $
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 718c88de328b..8c91637cd598 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -95,7 +95,7 @@ static void mvs_phy_init(struct mvs_info *mvi, int phy_id)
 
 	phy->mvi = mvi;
 	phy->port = NULL;
-	init_timer(&phy->timer);
+	timer_setup(&phy->timer, NULL, 0);
 	sas_phy->enabled = (phy_id < mvi->chip->n_phy) ? 1 : 0;
 	sas_phy->class = SAS;
 	sas_phy->iproto = SAS_PROTOCOL_ALL;
@@ -248,7 +248,6 @@ static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost)
 		mvi->devices[i].dev_type = SAS_PHY_UNUSED;
 		mvi->devices[i].device_id = i;
 		mvi->devices[i].dev_status = MVS_DEV_NORMAL;
-		init_timer(&mvi->devices[i].timer);
 	}
 
 	/*
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index ee81d10252e0..cff1c37b8d2e 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1283,9 +1283,10 @@ static void mvs_task_done(struct sas_task *task)
 	complete(&task->slow_task->completion);
 }
 
-static void mvs_tmf_timedout(unsigned long data)
+static void mvs_tmf_timedout(struct timer_list *t)
 {
-	struct sas_task *task = (struct sas_task *)data;
+	struct sas_task_slow *slow = from_timer(slow, t, timer);
+	struct sas_task *task = slow->task;
 
 	task->task_state_flags |= SAS_TASK_STATE_ABORTED;
 	complete(&task->slow_task->completion);
@@ -1309,8 +1310,7 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev,
 		memcpy(&task->ssp_task, parameter, para_len);
 		task->task_done = mvs_task_done;
 
-		task->slow_task->timer.data = (unsigned long) task;
-		task->slow_task->timer.function = mvs_tmf_timedout;
+		task->slow_task->timer.function = (TIMER_FUNC_TYPE)mvs_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + MVS_TASK_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
@@ -1954,9 +1954,9 @@ static int mvs_handle_event(struct mvs_info *mvi, void *data, int handler)
 	return ret;
 }
 
-static void mvs_sig_time_out(unsigned long tphy)
+static void mvs_sig_time_out(struct timer_list *t)
 {
-	struct mvs_phy *phy = (struct mvs_phy *)tphy;
+	struct mvs_phy *phy = from_timer(phy, t, timer);
 	struct mvs_info *mvi = phy->mvi;
 	u8 phy_no;
 
@@ -2020,8 +2020,7 @@ void mvs_int_port(struct mvs_info *mvi, int phy_no, u32 events)
 		MVS_CHIP_DISP->write_port_irq_mask(mvi, phy_no,
 					tmp | PHYEV_SIG_FIS);
 		if (phy->timer.function == NULL) {
-			phy->timer.data = (unsigned long)phy;
-			phy->timer.function = mvs_sig_time_out;
+			phy->timer.function = (TIMER_FUNC_TYPE)mvs_sig_time_out;
 			phy->timer.expires = jiffies + 5*HZ;
 			add_timer(&phy->timer);
 		}
diff --git a/drivers/scsi/mvsas/mv_sas.h b/drivers/scsi/mvsas/mv_sas.h
index f9afd4cdd4c4..080676c1c9e5 100644
--- a/drivers/scsi/mvsas/mv_sas.h
+++ b/drivers/scsi/mvsas/mv_sas.h
@@ -247,7 +247,6 @@ struct mvs_device {
 	enum sas_device_type dev_type;
 	struct mvs_info *mvi_info;
 	struct domain_device *sas_device;
-	struct timer_list timer;
 	u32 attached_phy;
 	u32 device_id;
 	u32 running_req;
diff --git a/drivers/scsi/osst.h b/drivers/scsi/osst.h
index b4fea98ba276..b90ae280853d 100644
--- a/drivers/scsi/osst.h
+++ b/drivers/scsi/osst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	$Header: /cvsroot/osst/Driver/osst.h,v 1.16 2005/01/01 21:13:35 wriede Exp $
  */
diff --git a/drivers/scsi/osst_detect.h b/drivers/scsi/osst_detect.h
index 21717d0e6974..83c1d4fb11db 100644
--- a/drivers/scsi/osst_detect.h
+++ b/drivers/scsi/osst_detect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define SIGS_FROM_OSST \
        {"OnStream", "SC-", "", "osst"}, \
        {"OnStream", "DI-", "", "osst"}, \
diff --git a/drivers/scsi/osst_options.h b/drivers/scsi/osst_options.h
index ff1e610946ed..a6a389b88876 100644
--- a/drivers/scsi/osst_options.h
+++ b/drivers/scsi/osst_options.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
    The compile-time configurable defaults for the Linux SCSI tape driver.
 
diff --git a/drivers/scsi/pcmcia/Makefile b/drivers/scsi/pcmcia/Makefile
index 683bf148b5b7..44eea2d43143 100644
--- a/drivers/scsi/pcmcia/Makefile
+++ b/drivers/scsi/pcmcia/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 ccflags-y		:= -Idrivers/scsi
 
diff --git a/drivers/scsi/pm8001/Makefile b/drivers/scsi/pm8001/Makefile
index ce4cd87c7c66..02b7338999cc 100644
--- a/drivers/scsi/pm8001/Makefile
+++ b/drivers/scsi/pm8001/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Kernel configuration file for the PM8001 SAS/SATA 8x6G based HBA driver
 #
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index c991a185724b..0e294e80c169 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -656,9 +656,10 @@ void pm8001_task_done(struct sas_task *task)
 	complete(&task->slow_task->completion);
 }
 
-static void pm8001_tmf_timedout(unsigned long data)
+static void pm8001_tmf_timedout(struct timer_list *t)
 {
-	struct sas_task *task = (struct sas_task *)data;
+	struct sas_task_slow *slow = from_timer(slow, t, timer);
+	struct sas_task *task = slow->task;
 
 	task->task_state_flags |= SAS_TASK_STATE_ABORTED;
 	complete(&task->slow_task->completion);
@@ -694,8 +695,7 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
 		task->task_proto = dev->tproto;
 		memcpy(&task->ssp_task, parameter, para_len);
 		task->task_done = pm8001_task_done;
-		task->slow_task->timer.data = (unsigned long)task;
-		task->slow_task->timer.function = pm8001_tmf_timedout;
+		task->slow_task->timer.function = (TIMER_FUNC_TYPE)pm8001_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT*HZ;
 		add_timer(&task->slow_task->timer);
 
@@ -781,8 +781,7 @@ pm8001_exec_internal_task_abort(struct pm8001_hba_info *pm8001_ha,
 		task->dev = dev;
 		task->task_proto = dev->tproto;
 		task->task_done = pm8001_task_done;
-		task->slow_task->timer.data = (unsigned long)task;
-		task->slow_task->timer.function = pm8001_tmf_timedout;
+		task->slow_task->timer.function = (TIMER_FUNC_TYPE)pm8001_tmf_timedout;
 		task->slow_task->timer.expires = jiffies + PM8001_TASK_TIMEOUT * HZ;
 		add_timer(&task->slow_task->timer);
 
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index b4d6cd8cd1ad..4f9f115fb6a0 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -348,7 +348,7 @@ static void pmcraid_init_cmdblk(struct pmcraid_cmd *cmd, int index)
 	cmd->sense_buffer = NULL;
 	cmd->sense_buffer_dma = 0;
 	cmd->dma_handle = 0;
-	init_timer(&cmd->timer);
+	timer_setup(&cmd->timer, NULL, 0);
 }
 
 /**
@@ -557,8 +557,9 @@ static void pmcraid_reset_type(struct pmcraid_instance *pinstance)
 
 static void pmcraid_ioa_reset(struct pmcraid_cmd *);
 
-static void pmcraid_bist_done(struct pmcraid_cmd *cmd)
+static void pmcraid_bist_done(struct timer_list *t)
 {
+	struct pmcraid_cmd *cmd = from_timer(cmd, t, timer);
 	struct pmcraid_instance *pinstance = cmd->drv_inst;
 	unsigned long lock_flags;
 	int rc;
@@ -572,9 +573,6 @@ static void pmcraid_bist_done(struct pmcraid_cmd *cmd)
 		pmcraid_info("BIST not complete, waiting another 2 secs\n");
 		cmd->timer.expires = jiffies + cmd->time_left;
 		cmd->time_left = 0;
-		cmd->timer.data = (unsigned long)cmd;
-		cmd->timer.function =
-			(void (*)(unsigned long))pmcraid_bist_done;
 		add_timer(&cmd->timer);
 	} else {
 		cmd->time_left = 0;
@@ -605,9 +603,8 @@ static void pmcraid_start_bist(struct pmcraid_cmd *cmd)
 		      doorbells, intrs);
 
 	cmd->time_left = msecs_to_jiffies(PMCRAID_BIST_TIMEOUT);
-	cmd->timer.data = (unsigned long)cmd;
 	cmd->timer.expires = jiffies + msecs_to_jiffies(PMCRAID_BIST_TIMEOUT);
-	cmd->timer.function = (void (*)(unsigned long))pmcraid_bist_done;
+	cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_bist_done;
 	add_timer(&cmd->timer);
 }
 
@@ -617,8 +614,9 @@ static void pmcraid_start_bist(struct pmcraid_cmd *cmd)
  * Return value
  *  None
  */
-static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd)
+static void pmcraid_reset_alert_done(struct timer_list *t)
 {
+	struct pmcraid_cmd *cmd = from_timer(cmd, t, timer);
 	struct pmcraid_instance *pinstance = cmd->drv_inst;
 	u32 status = ioread32(pinstance->ioa_status);
 	unsigned long lock_flags;
@@ -637,10 +635,8 @@ static void pmcraid_reset_alert_done(struct pmcraid_cmd *cmd)
 		pmcraid_info("critical op is not yet reset waiting again\n");
 		/* restart timer if some more time is available to wait */
 		cmd->time_left -= PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.data = (unsigned long)cmd;
 		cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.function =
-			(void (*)(unsigned long))pmcraid_reset_alert_done;
+		cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_reset_alert_done;
 		add_timer(&cmd->timer);
 	}
 }
@@ -676,10 +672,8 @@ static void pmcraid_reset_alert(struct pmcraid_cmd *cmd)
 		 * bit to be reset.
 		 */
 		cmd->time_left = PMCRAID_RESET_TIMEOUT;
-		cmd->timer.data = (unsigned long)cmd;
 		cmd->timer.expires = jiffies + PMCRAID_CHECK_FOR_RESET_TIMEOUT;
-		cmd->timer.function =
-			(void (*)(unsigned long))pmcraid_reset_alert_done;
+		cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_reset_alert_done;
 		add_timer(&cmd->timer);
 
 		iowrite32(DOORBELL_IOA_RESET_ALERT,
@@ -704,8 +698,9 @@ static void pmcraid_reset_alert(struct pmcraid_cmd *cmd)
  * Return value:
  *   None
  */
-static void pmcraid_timeout_handler(struct pmcraid_cmd *cmd)
+static void pmcraid_timeout_handler(struct timer_list *t)
 {
+	struct pmcraid_cmd *cmd = from_timer(cmd, t, timer);
 	struct pmcraid_instance *pinstance = cmd->drv_inst;
 	unsigned long lock_flags;
 
@@ -919,7 +914,7 @@ static void pmcraid_send_cmd(
 	struct pmcraid_cmd *cmd,
 	void (*cmd_done) (struct pmcraid_cmd *),
 	unsigned long timeout,
-	void (*timeout_func) (struct pmcraid_cmd *)
+	void (*timeout_func) (struct timer_list *)
 )
 {
 	/* initialize done function */
@@ -927,9 +922,8 @@ static void pmcraid_send_cmd(
 
 	if (timeout_func) {
 		/* setup timeout handler */
-		cmd->timer.data = (unsigned long)cmd;
 		cmd->timer.expires = jiffies + timeout;
-		cmd->timer.function = (void (*)(unsigned long))timeout_func;
+		cmd->timer.function = (TIMER_FUNC_TYPE)timeout_func;
 		add_timer(&cmd->timer);
 	}
 
@@ -1955,10 +1949,9 @@ static void pmcraid_soft_reset(struct pmcraid_cmd *cmd)
 	 * would re-initiate a reset
 	 */
 	cmd->cmd_done = pmcraid_ioa_reset;
-	cmd->timer.data = (unsigned long)cmd;
 	cmd->timer.expires = jiffies +
 			     msecs_to_jiffies(PMCRAID_TRANSOP_TIMEOUT);
-	cmd->timer.function = (void (*)(unsigned long))pmcraid_timeout_handler;
+	cmd->timer.function = (TIMER_FUNC_TYPE)pmcraid_timeout_handler;
 
 	if (!timer_pending(&cmd->timer))
 		add_timer(&cmd->timer);
diff --git a/drivers/scsi/ppa.h b/drivers/scsi/ppa.h
index ba8021427b88..6a1f8a2d70eb 100644
--- a/drivers/scsi/ppa.h
+++ b/drivers/scsi/ppa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  Driver for the PPA3 parallel port SCSI HBA embedded in 
  * the Iomega ZIP drive
  * 
diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c
index 8a29fb09db14..390775d5c918 100644
--- a/drivers/scsi/qla1280.c
+++ b/drivers/scsi/qla1280.c
@@ -758,9 +758,9 @@ enum action {
 };
 
 
-static void qla1280_mailbox_timeout(unsigned long __data)
+static void qla1280_mailbox_timeout(struct timer_list *t)
 {
-	struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
+	struct scsi_qla_host *ha = from_timer(ha, t, mailbox_timer);
 	struct device_reg __iomem *reg;
 	reg = ha->iobase;
 
@@ -2465,7 +2465,6 @@ qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
 	uint16_t __iomem *mptr;
 	uint16_t data;
 	DECLARE_COMPLETION_ONSTACK(wait);
-	struct timer_list timer;
 
 	ENTER("qla1280_mailbox_command");
 
@@ -2494,18 +2493,15 @@ qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
 	/* Issue set host interrupt command. */
 
 	/* set up a timer just in case we're really jammed */
-	init_timer_on_stack(&timer);
-	timer.expires = jiffies + 20*HZ;
-	timer.data = (unsigned long)ha;
-	timer.function = qla1280_mailbox_timeout;
-	add_timer(&timer);
+	timer_setup(&ha->mailbox_timer, qla1280_mailbox_timeout, 0);
+	mod_timer(&ha->mailbox_timer, jiffies + 20 * HZ);
 
 	spin_unlock_irq(ha->host->host_lock);
 	WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
 	data = qla1280_debounce_register(&reg->istatus);
 
 	wait_for_completion(&wait);
-	del_timer_sync(&timer);
+	del_timer_sync(&ha->mailbox_timer);
 
 	spin_lock_irq(ha->host->host_lock);
 
diff --git a/drivers/scsi/qla1280.h b/drivers/scsi/qla1280.h
index 834884b9eed5..1522aca2c8c8 100644
--- a/drivers/scsi/qla1280.h
+++ b/drivers/scsi/qla1280.h
@@ -1055,6 +1055,7 @@ struct scsi_qla_host {
 	struct list_head done_q;	/* Done queue */
 
 	struct completion *mailbox_wait;
+	struct timer_list mailbox_timer;
 
 	volatile struct {
 		uint32_t online:1;			/* 0 */
diff --git a/drivers/scsi/qla2xxx/Makefile b/drivers/scsi/qla2xxx/Makefile
index 0b767a0bb308..17d5bc1cc56b 100644
--- a/drivers/scsi/qla2xxx/Makefile
+++ b/drivers/scsi/qla2xxx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 qla2xxx-y := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \
 		qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o qla_bsg.o \
 		qla_nx.o qla_mr.o qla_nx2.o qla_target.o qla_tmpl.o qla_nvme.o
diff --git a/drivers/scsi/qla2xxx/qla_devtbl.h b/drivers/scsi/qla2xxx/qla_devtbl.h
index d6ea69df7c5c..ffb9694be748 100644
--- a/drivers/scsi/qla2xxx/qla_devtbl.h
+++ b/drivers/scsi/qla2xxx/qla_devtbl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define QLA_MODEL_NAMES		0x5C
 
 /*
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 0a23af5aa479..fa115c7433e5 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -209,8 +209,8 @@ int qla24xx_async_abort_cmd(srb_t *);
  */
 extern struct scsi_host_template qla2xxx_driver_template;
 extern struct scsi_transport_template *qla2xxx_transport_vport_template;
-extern void qla2x00_timer(scsi_qla_host_t *);
-extern void qla2x00_start_timer(scsi_qla_host_t *, void *, unsigned long);
+extern void qla2x00_timer(struct timer_list *);
+extern void qla2x00_start_timer(scsi_qla_host_t *, unsigned long);
 extern void qla24xx_deallocate_vp_id(scsi_qla_host_t *);
 extern int qla24xx_disable_vp (scsi_qla_host_t *);
 extern int qla24xx_enable_vp (scsi_qla_host_t *);
@@ -758,7 +758,7 @@ extern int qla82xx_restart_isp(scsi_qla_host_t *);
 /* IOCB related functions */
 extern int qla82xx_start_scsi(srb_t *);
 extern void qla2x00_sp_free(void *);
-extern void qla2x00_sp_timeout(unsigned long);
+extern void qla2x00_sp_timeout(struct timer_list *);
 extern void qla2x00_bsg_job_done(void *, int);
 extern void qla2x00_bsg_sp_free(void *);
 extern void qla2x00_start_iocbs(struct scsi_qla_host *, struct req_que *);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 76edb4a02a8d..1bafa043f9f1 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -45,9 +45,9 @@ static void qla24xx_handle_prli_done_event(struct scsi_qla_host *,
 /* SRB Extensions ---------------------------------------------------------- */
 
 void
-qla2x00_sp_timeout(unsigned long __data)
+qla2x00_sp_timeout(struct timer_list *t)
 {
-	srb_t *sp = (srb_t *)__data;
+	srb_t *sp = from_timer(sp, t, u.iocb_cmd.timer);
 	struct srb_iocb *iocb;
 	scsi_qla_host_t *vha = sp->vha;
 	struct req_que *req;
diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h
index 9a2c86eacf44..17d2c20f1f75 100644
--- a/drivers/scsi/qla2xxx/qla_inline.h
+++ b/drivers/scsi/qla2xxx/qla_inline.h
@@ -269,10 +269,8 @@ qla2x00_rel_sp(srb_t *sp)
 static inline void
 qla2x00_init_timer(srb_t *sp, unsigned long tmo)
 {
-	init_timer(&sp->u.iocb_cmd.timer);
+	timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
 	sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
-	sp->u.iocb_cmd.timer.data = (unsigned long)sp;
-	sp->u.iocb_cmd.timer.function = qla2x00_sp_timeout;
 	add_timer(&sp->u.iocb_cmd.timer);
 	sp->free = qla2x00_sp_free;
 	if (IS_QLAFX00(sp->vha->hw) && (sp->type == SRB_FXIOCB_DCMD))
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 3630bb66a74c..bd9f14bf7ac2 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -487,7 +487,7 @@ qla24xx_create_vhost(struct fc_vport *fc_vport)
 	atomic_set(&vha->loop_state, LOOP_DOWN);
 	atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);
 
-	qla2x00_start_timer(vha, qla2x00_timer, WATCH_INTERVAL);
+	qla2x00_start_timer(vha, WATCH_INTERVAL);
 
 	vha->req = base_vha->req;
 	host->can_queue = base_vha->req->length + 128;
diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c
index 1f59e7a74c7b..6b33a1f24f56 100644
--- a/drivers/scsi/qla2xxx/qla_nvme.c
+++ b/drivers/scsi/qla2xxx/qla_nvme.c
@@ -180,7 +180,7 @@ static void qla_nvme_sp_done(void *ptr, int res)
 		goto rel;
 
 	if (unlikely(res == QLA_FUNCTION_FAILED))
-		fd->status = NVME_SC_FC_TRANSPORT_ERROR;
+		fd->status = NVME_SC_INTERNAL;
 	else
 		fd->status = 0;
 
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 41e651033fc9..46f2d0cf7c0d 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -339,12 +339,10 @@ struct scsi_transport_template *qla2xxx_transport_vport_template = NULL;
  */
 
 __inline__ void
-qla2x00_start_timer(scsi_qla_host_t *vha, void *func, unsigned long interval)
+qla2x00_start_timer(scsi_qla_host_t *vha, unsigned long interval)
 {
-	init_timer(&vha->timer);
+	timer_setup(&vha->timer, qla2x00_timer, 0);
 	vha->timer.expires = jiffies + interval * HZ;
-	vha->timer.data = (unsigned long)vha;
-	vha->timer.function = (void (*)(unsigned long))func;
 	add_timer(&vha->timer);
 	vha->timer_active = 1;
 }
@@ -3071,6 +3069,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	    host->max_cmd_len, host->max_channel, host->max_lun,
 	    host->transportt, sht->vendor_id);
 
+	INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn);
+
 	/* Set up the irqs */
 	ret = qla2x00_request_irqs(ha, rsp);
 	if (ret)
@@ -3228,6 +3228,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		ql_log(ql_log_fatal, base_vha, 0x00ed,
 		    "Failed to start DPC thread.\n");
 		ret = PTR_ERR(ha->dpc_thread);
+		ha->dpc_thread = NULL;
 		goto probe_failed;
 	}
 	ql_dbg(ql_dbg_init, base_vha, 0x00ee,
@@ -3241,7 +3242,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	 */
 	qla2xxx_wake_dpc(base_vha);
 
-	INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn);
 	INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error);
 
 	if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) {
@@ -3263,7 +3263,7 @@ skip_dpc:
 	base_vha->host->irq = ha->pdev->irq;
 
 	/* Initialized the timer */
-	qla2x00_start_timer(base_vha, qla2x00_timer, WATCH_INTERVAL);
+	qla2x00_start_timer(base_vha, WATCH_INTERVAL);
 	ql_dbg(ql_dbg_init, base_vha, 0x00ef,
 	    "Started qla2x00_timer with "
 	    "interval=%d.\n", WATCH_INTERVAL);
@@ -6012,8 +6012,9 @@ qla2x00_rst_aen(scsi_qla_host_t *vha)
 * Context: Interrupt
 ***************************************************************************/
 void
-qla2x00_timer(scsi_qla_host_t *vha)
+qla2x00_timer(struct timer_list *t)
 {
+	scsi_qla_host_t *vha = from_timer(vha, t, timer);
 	unsigned long	cpu_flags = 0;
 	int		start_dpc = 0;
 	int		index;
diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 12976a25f082..18069edd4773 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -996,7 +996,7 @@ static void qlt_free_session_done(struct work_struct *work)
 	if (logout_started) {
 		bool traced = false;
 
-		while (!ACCESS_ONCE(sess->logout_completed)) {
+		while (!READ_ONCE(sess->logout_completed)) {
 			if (!traced) {
 				ql_dbg(ql_dbg_tgt_mgt, vha, 0xf086,
 					"%s: waiting for sess %p logout\n",
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
index 071035dfa99a..7550ba2831c3 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <target/target_core_base.h>
 #include <linux/btree.h>
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 64c6fa563fdb..2b8a8ce2a431 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -3955,16 +3955,15 @@ exit_session_conn_param:
 /*
  * Timer routines
  */
+static void qla4xxx_timer(struct timer_list *t);
 
-static void qla4xxx_start_timer(struct scsi_qla_host *ha, void *func,
+static void qla4xxx_start_timer(struct scsi_qla_host *ha,
 				unsigned long interval)
 {
 	DEBUG(printk("scsi: %s: Starting timer thread for adapter %d\n",
 		     __func__, ha->host->host_no));
-	init_timer(&ha->timer);
+	timer_setup(&ha->timer, qla4xxx_timer, 0);
 	ha->timer.expires = jiffies + interval * HZ;
-	ha->timer.data = (unsigned long)ha;
-	ha->timer.function = (void (*)(unsigned long))func;
 	add_timer(&ha->timer);
 	ha->timer_active = 1;
 }
@@ -4508,8 +4507,9 @@ static void qla4xxx_check_relogin_flash_ddb(struct iscsi_cls_session *cls_sess)
  * qla4xxx_timer - checks every second for work to do.
  * @ha: Pointer to host adapter structure.
  **/
-static void qla4xxx_timer(struct scsi_qla_host *ha)
+static void qla4xxx_timer(struct timer_list *t)
 {
+	struct scsi_qla_host *ha = from_timer(ha, t, timer);
 	int start_dpc = 0;
 	uint16_t w;
 
@@ -8805,7 +8805,7 @@ skip_retry_init:
 	ha->isp_ops->enable_intrs(ha);
 
 	/* Start timer thread. */
-	qla4xxx_start_timer(ha, qla4xxx_timer, 1);
+	qla4xxx_start_timer(ha, 1);
 
 	set_bit(AF_INIT_DONE, &ha->flags);
 
diff --git a/drivers/scsi/qlogicfas408.h b/drivers/scsi/qlogicfas408.h
index f6b1216af79f..a971db11d293 100644
--- a/drivers/scsi/qlogicfas408.h
+++ b/drivers/scsi/qlogicfas408.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* to be used by qlogicfas and qlogic_cs */
 #ifndef __QLOGICFAS408_H
 #define __QLOGICFAS408_H
diff --git a/drivers/scsi/qlogicpti.h b/drivers/scsi/qlogicpti.h
index 892a0b058b99..884ad72ade57 100644
--- a/drivers/scsi/qlogicpti.h
+++ b/drivers/scsi/qlogicpti.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* qlogicpti.h: Performance Technologies QlogicISP sbus card defines.
  *
  * Copyright (C) 1996 David S. Miller (davem@caipfs.rutgers.edu)
diff --git a/drivers/scsi/scsi.h b/drivers/scsi/scsi.h
index d5a55fae60e0..6dcc4c685d1d 100644
--- a/drivers/scsi/scsi.h
+++ b/drivers/scsi/scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  scsi.h Copyright (C) 1992 Drew Eckhardt 
  *         Copyright (C) 1993, 1994, 1995, 1998, 1999 Eric Youngdale
diff --git a/drivers/scsi/scsi_common.c b/drivers/scsi/scsi_common.c
index a75673bb82b3..40bc616cf8ab 100644
--- a/drivers/scsi/scsi_common.c
+++ b/drivers/scsi/scsi_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SCSI functions used by both the initiator and the target code.
  */
diff --git a/drivers/scsi/scsi_debugfs.c b/drivers/scsi/scsi_debugfs.c
index 5e9755008aed..01f08c03f2c1 100644
--- a/drivers/scsi/scsi_debugfs.c
+++ b/drivers/scsi/scsi_debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/seq_file.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_dbg.h>
diff --git a/drivers/scsi/scsi_devinfo.c b/drivers/scsi/scsi_devinfo.c
index 555269bec02f..fe5a9ea27b5e 100644
--- a/drivers/scsi/scsi_devinfo.c
+++ b/drivers/scsi/scsi_devinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/blkdev.h>
 #include <linux/init.h>
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index ae0486332ea8..62b56de38ae8 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -587,7 +587,8 @@ int scsi_check_sense(struct scsi_cmnd *scmd)
 		    sshdr.asc == 0x21 || /* Logical block address out of range */
 		    sshdr.asc == 0x22 || /* Invalid function */
 		    sshdr.asc == 0x24 || /* Invalid field in cdb */
-		    sshdr.asc == 0x26) { /* Parameter value invalid */
+		    sshdr.asc == 0x26 || /* Parameter value invalid */
+		    sshdr.asc == 0x27) { /* Write protected */
 			set_host_byte(scmd, DID_TARGET_FAILURE);
 		}
 		return SUCCESS;
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index e5fcfa867045..1cbc497e00bd 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -252,9 +252,9 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
 	struct scsi_request *rq;
 	int ret = DRIVER_ERROR << 24;
 
-	req = blk_get_request(sdev->request_queue,
+	req = blk_get_request_flags(sdev->request_queue,
 			data_direction == DMA_TO_DEVICE ?
-			REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, __GFP_RECLAIM);
+			REQ_OP_SCSI_OUT : REQ_OP_SCSI_IN, BLK_MQ_REQ_PREEMPT);
 	if (IS_ERR(req))
 		return ret;
 	rq = scsi_req(req);
@@ -268,7 +268,7 @@ int scsi_execute(struct scsi_device *sdev, const unsigned char *cmd,
 	rq->retries = retries;
 	req->timeout = timeout;
 	req->cmd_flags |= flags;
-	req->rq_flags |= rq_flags | RQF_QUIET | RQF_PREEMPT;
+	req->rq_flags |= rq_flags | RQF_QUIET;
 
 	/*
 	 * head injection *required* here otherwise quiesce won't work
@@ -1301,7 +1301,7 @@ scsi_prep_state_check(struct scsi_device *sdev, struct request *req)
 			/*
 			 * If the devices is blocked we defer normal commands.
 			 */
-			if (!(req->rq_flags & RQF_PREEMPT))
+			if (req && !(req->rq_flags & RQF_PREEMPT))
 				ret = BLKPREP_DEFER;
 			break;
 		default:
@@ -1310,7 +1310,7 @@ scsi_prep_state_check(struct scsi_device *sdev, struct request *req)
 			 * special commands.  In particular any user initiated
 			 * command is not allowed.
 			 */
-			if (!(req->rq_flags & RQF_PREEMPT))
+			if (req && !(req->rq_flags & RQF_PREEMPT))
 				ret = BLKPREP_KILL;
 			break;
 		}
@@ -1379,8 +1379,6 @@ static int scsi_prep_fn(struct request_queue *q, struct request *req)
 
 	ret = scsi_setup_cmnd(sdev, req);
 out:
-	if (ret != BLKPREP_OK)
-		cmd->flags &= ~SCMD_INITIALIZED;
 	return scsi_prep_return(q, req, ret);
 }
 
@@ -1903,7 +1901,6 @@ static int scsi_mq_prep_fn(struct request *req)
 	struct scsi_device *sdev = req->q->queuedata;
 	struct Scsi_Host *shost = sdev->host;
 	struct scatterlist *sg;
-	int ret;
 
 	scsi_init_command(sdev, cmd);
 
@@ -1937,10 +1934,7 @@ static int scsi_mq_prep_fn(struct request *req)
 
 	blk_mq_start_request(req);
 
-	ret = scsi_setup_cmnd(sdev, req);
-	if (ret != BLK_STS_OK)
-		cmd->flags &= ~SCMD_INITIALIZED;
-	return ret;
+	return scsi_setup_cmnd(sdev, req);
 }
 
 static void scsi_mq_done(struct scsi_cmnd *cmd)
@@ -1949,6 +1943,33 @@ static void scsi_mq_done(struct scsi_cmnd *cmd)
 	blk_mq_complete_request(cmd->request);
 }
 
+static void scsi_mq_put_budget(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+	struct scsi_device *sdev = q->queuedata;
+
+	atomic_dec(&sdev->device_busy);
+	put_device(&sdev->sdev_gendev);
+}
+
+static bool scsi_mq_get_budget(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+	struct scsi_device *sdev = q->queuedata;
+
+	if (!get_device(&sdev->sdev_gendev))
+		goto out;
+	if (!scsi_dev_queue_ready(q, sdev))
+		goto out_put_device;
+
+	return true;
+
+out_put_device:
+	put_device(&sdev->sdev_gendev);
+out:
+	return false;
+}
+
 static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 			 const struct blk_mq_queue_data *bd)
 {
@@ -1962,16 +1983,11 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 
 	ret = prep_to_mq(scsi_prep_state_check(sdev, req));
 	if (ret != BLK_STS_OK)
-		goto out;
+		goto out_put_budget;
 
 	ret = BLK_STS_RESOURCE;
-	if (!get_device(&sdev->sdev_gendev))
-		goto out;
-
-	if (!scsi_dev_queue_ready(q, sdev))
-		goto out_put_device;
 	if (!scsi_target_queue_ready(shost, sdev))
-		goto out_dec_device_busy;
+		goto out_put_budget;
 	if (!scsi_host_queue_ready(q, shost, sdev))
 		goto out_dec_target_busy;
 
@@ -2002,15 +2018,12 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
 	return BLK_STS_OK;
 
 out_dec_host_busy:
-	atomic_dec(&shost->host_busy);
+       atomic_dec(&shost->host_busy);
 out_dec_target_busy:
 	if (scsi_target(sdev)->can_queue > 0)
 		atomic_dec(&scsi_target(sdev)->target_busy);
-out_dec_device_busy:
-	atomic_dec(&sdev->device_busy);
-out_put_device:
-	put_device(&sdev->sdev_gendev);
-out:
+out_put_budget:
+	scsi_mq_put_budget(hctx);
 	switch (ret) {
 	case BLK_STS_OK:
 		break;
@@ -2214,6 +2227,8 @@ struct request_queue *scsi_old_alloc_queue(struct scsi_device *sdev)
 }
 
 static const struct blk_mq_ops scsi_mq_ops = {
+	.get_budget	= scsi_mq_get_budget,
+	.put_budget	= scsi_mq_put_budget,
 	.queue_rq	= scsi_queue_rq,
 	.complete	= scsi_softirq_done,
 	.timeout	= scsi_timeout,
@@ -2694,7 +2709,6 @@ scsi_device_set_state(struct scsi_device *sdev, enum scsi_device_state state)
 
 	}
 	sdev->sdev_state = state;
-	sysfs_notify(&sdev->sdev_gendev.kobj, NULL, "state");
 	return 0;
 
  illegal:
@@ -2933,21 +2947,37 @@ static void scsi_wait_for_queuecommand(struct scsi_device *sdev)
 int
 scsi_device_quiesce(struct scsi_device *sdev)
 {
+	struct request_queue *q = sdev->request_queue;
 	int err;
 
+	/*
+	 * It is allowed to call scsi_device_quiesce() multiple times from
+	 * the same context but concurrent scsi_device_quiesce() calls are
+	 * not allowed.
+	 */
+	WARN_ON_ONCE(sdev->quiesced_by && sdev->quiesced_by != current);
+
+	blk_set_preempt_only(q);
+
+	blk_mq_freeze_queue(q);
+	/*
+	 * Ensure that the effect of blk_set_preempt_only() will be visible
+	 * for percpu_ref_tryget() callers that occur after the queue
+	 * unfreeze even if the queue was already frozen before this function
+	 * was called. See also https://lwn.net/Articles/573497/.
+	 */
+	synchronize_rcu();
+	blk_mq_unfreeze_queue(q);
+
 	mutex_lock(&sdev->state_mutex);
 	err = scsi_device_set_state(sdev, SDEV_QUIESCE);
+	if (err == 0)
+		sdev->quiesced_by = current;
+	else
+		blk_clear_preempt_only(q);
 	mutex_unlock(&sdev->state_mutex);
 
-	if (err)
-		return err;
-
-	scsi_run_queue(sdev->request_queue);
-	while (atomic_read(&sdev->device_busy)) {
-		msleep_interruptible(200);
-		scsi_run_queue(sdev->request_queue);
-	}
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL(scsi_device_quiesce);
 
@@ -2967,9 +2997,11 @@ void scsi_device_resume(struct scsi_device *sdev)
 	 * device deleted during suspend)
 	 */
 	mutex_lock(&sdev->state_mutex);
-	if (sdev->sdev_state == SDEV_QUIESCE &&
-	    scsi_device_set_state(sdev, SDEV_RUNNING) == 0)
-		scsi_run_queue(sdev->request_queue);
+	WARN_ON_ONCE(!sdev->quiesced_by);
+	sdev->quiesced_by = NULL;
+	blk_clear_preempt_only(sdev->request_queue);
+	if (sdev->sdev_state == SDEV_QUIESCE)
+		scsi_device_set_state(sdev, SDEV_RUNNING);
 	mutex_unlock(&sdev->state_mutex);
 }
 EXPORT_SYMBOL(scsi_device_resume);
@@ -3122,7 +3154,6 @@ int scsi_internal_device_unblock_nowait(struct scsi_device *sdev,
 	case SDEV_BLOCK:
 	case SDEV_TRANSPORT_OFFLINE:
 		sdev->sdev_state = new_state;
-		sysfs_notify(&sdev->sdev_gendev.kobj, NULL, "state");
 		break;
 	case SDEV_CREATED_BLOCK:
 		if (new_state == SDEV_TRANSPORT_OFFLINE ||
@@ -3130,7 +3161,6 @@ int scsi_internal_device_unblock_nowait(struct scsi_device *sdev,
 			sdev->sdev_state = new_state;
 		else
 			sdev->sdev_state = SDEV_CREATED;
-		sysfs_notify(&sdev->sdev_gendev.kobj, NULL, "state");
 		break;
 	case SDEV_CANCEL:
 	case SDEV_OFFLINE:
diff --git a/drivers/scsi/scsi_lib_dma.c b/drivers/scsi/scsi_lib_dma.c
index 2ac3f3975f78..5723915275ad 100644
--- a/drivers/scsi/scsi_lib_dma.c
+++ b/drivers/scsi/scsi_lib_dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SCSI library functions depending on DMA
  */
diff --git a/drivers/scsi/scsi_logging.h b/drivers/scsi/scsi_logging.h
index a7ffa129b757..836185de28c4 100644
--- a/drivers/scsi/scsi_logging.h
+++ b/drivers/scsi/scsi_logging.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_LOGGING_H
 #define _SCSI_LOGGING_H
 
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 9125e0162eed..df1368aea9a3 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_PRIV_H
 #define _SCSI_PRIV_H
 
diff --git a/drivers/scsi/scsi_proc.c b/drivers/scsi/scsi_proc.c
index 480a597b3877..7f0ceb65c3f3 100644
--- a/drivers/scsi/scsi_proc.c
+++ b/drivers/scsi/scsi_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/drivers/scsi/scsi_proc.c
  *
diff --git a/drivers/scsi/scsi_sas_internal.h b/drivers/scsi/scsi_sas_internal.h
index e659912498bd..82fd548c5eee 100644
--- a/drivers/scsi/scsi_sas_internal.h
+++ b/drivers/scsi/scsi_sas_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SAS_INTERNAL_H
 #define _SCSI_SAS_INTERNAL_H
 
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 26edd61a5554..a0f2a20ea9e9 100644
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * scsi_scan.c
  *
@@ -956,6 +957,9 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result,
 	if (*bflags & BLIST_NO_DIF)
 		sdev->no_dif = 1;
 
+	if (*bflags & BLIST_UNMAP_LIMIT_WS)
+		sdev->unmap_limit_for_ws = 1;
+
 	sdev->eh_timeout = SCSI_DEFAULT_EH_TIMEOUT;
 
 	if (*bflags & BLIST_TRY_VPD_PAGES)
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index e7714547b310..50e7d7e4a861 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -1407,13 +1407,19 @@ static void __scsi_remove_target(struct scsi_target *starget)
 	spin_lock_irqsave(shost->host_lock, flags);
  restart:
 	list_for_each_entry(sdev, &shost->__devices, siblings) {
+		/*
+		 * We cannot call scsi_device_get() here, as
+		 * we might've been called from rmmod() causing
+		 * scsi_device_get() to fail the module_is_live()
+		 * check.
+		 */
 		if (sdev->channel != starget->channel ||
 		    sdev->id != starget->id ||
-		    scsi_device_get(sdev))
+		    !get_device(&sdev->sdev_gendev))
 			continue;
 		spin_unlock_irqrestore(shost->host_lock, flags);
 		scsi_remove_device(sdev);
-		scsi_device_put(sdev);
+		put_device(&sdev->sdev_gendev);
 		spin_lock_irqsave(shost->host_lock, flags);
 		goto restart;
 	}
diff --git a/drivers/scsi/scsi_transport_api.h b/drivers/scsi/scsi_transport_api.h
index 934f0e62bb5c..f917766537c0 100644
--- a/drivers/scsi/scsi_transport_api.h
+++ b/drivers/scsi/scsi_transport_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_TRANSPORT_API_H
 #define _SCSI_TRANSPORT_API_H
 
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 49058295d9bc..4664024bd5d3 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -2741,7 +2741,8 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
 
 	list_for_each_entry(rport, &fc_host->rports, peers) {
 
-		if ((rport->port_state == FC_PORTSTATE_BLOCKED) &&
+		if ((rport->port_state == FC_PORTSTATE_BLOCKED ||
+		     rport->port_state == FC_PORTSTATE_NOTPRESENT) &&
 			(rport->channel == channel)) {
 
 			switch (fc_host->tgtid_bind_type) {
@@ -2878,7 +2879,6 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
 			memcpy(&rport->port_name, &ids->port_name,
 				sizeof(rport->port_name));
 			rport->port_id = ids->port_id;
-			rport->roles = ids->roles;
 			rport->port_state = FC_PORTSTATE_ONLINE;
 			rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT;
 
@@ -2887,15 +2887,7 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
 						fci->f->dd_fcrport_size);
 			spin_unlock_irqrestore(shost->host_lock, flags);
 
-			if (ids->roles & FC_PORT_ROLE_FCP_TARGET) {
-				scsi_target_unblock(&rport->dev, SDEV_RUNNING);
-
-				/* initiate a scan of the target */
-				spin_lock_irqsave(shost->host_lock, flags);
-				rport->flags |= FC_RPORT_SCAN_PENDING;
-				scsi_queue_work(shost, &rport->scan_work);
-				spin_unlock_irqrestore(shost->host_lock, flags);
-			}
+			fc_remote_port_rolechg(rport, ids->roles);
 			return rport;
 		}
 	}
@@ -3330,6 +3322,9 @@ int fc_block_scsi_eh(struct scsi_cmnd *cmnd)
 {
 	struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
 
+	if (WARN_ON_ONCE(!rport))
+		return FAST_IO_FAIL;
+
 	return fc_block_rport(rport);
 }
 EXPORT_SYMBOL(fc_block_scsi_eh);
@@ -3573,7 +3568,7 @@ fc_vport_sched_delete(struct work_struct *work)
 static enum blk_eh_timer_return
 fc_bsg_job_timeout(struct request *req)
 {
-	struct bsg_job *job = (void *) req->special;
+	struct bsg_job *job = blk_mq_rq_to_pdu(req);
 	struct Scsi_Host *shost = fc_bsg_to_shost(job);
 	struct fc_rport *rport = fc_bsg_to_rport(job);
 	struct fc_internal *i = to_fc_internal(shost->transportt);
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index 590a56ce02b4..f4b52b44b966 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2211,22 +2211,6 @@ void iscsi_free_session(struct iscsi_cls_session *session)
 EXPORT_SYMBOL_GPL(iscsi_free_session);
 
 /**
- * iscsi_destroy_session - destroy iscsi session
- * @session: iscsi_session
- *
- * Can be called by a LLD or iscsi_transport. There must not be
- * any running connections.
- */
-int iscsi_destroy_session(struct iscsi_cls_session *session)
-{
-	iscsi_remove_session(session);
-	ISCSI_DBG_TRANS_SESSION(session, "Completing session destruction\n");
-	iscsi_free_session(session);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(iscsi_destroy_session);
-
-/**
  * iscsi_create_conn - create iscsi class connection
  * @session: iscsi cls session
  * @dd_size: private driver data size
@@ -3689,7 +3673,7 @@ iscsi_if_rx(struct sk_buff *skb)
 		uint32_t group;
 
 		nlh = nlmsg_hdr(skb);
-		if (nlh->nlmsg_len < sizeof(*nlh) ||
+		if (nlh->nlmsg_len < sizeof(*nlh) + sizeof(*ev) ||
 		    skb->len < nlh->nlmsg_len) {
 			break;
 		}
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index 4f6f01cf9968..36f6190931bc 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -556,11 +556,8 @@ int srp_reconnect_rport(struct srp_rport *rport)
 		 */
 		shost_for_each_device(sdev, shost) {
 			mutex_lock(&sdev->state_mutex);
-			if (sdev->sdev_state == SDEV_OFFLINE) {
+			if (sdev->sdev_state == SDEV_OFFLINE)
 				sdev->sdev_state = SDEV_RUNNING;
-				sysfs_notify(&sdev->sdev_gendev.kobj,
-					     NULL, "state");
-			}
 			mutex_unlock(&sdev->state_mutex);
 		}
 	} else if (rport->state == SRP_RPORT_RUNNING) {
diff --git a/drivers/scsi/scsicam.c b/drivers/scsi/scsicam.c
index 31273468589c..e969138051c7 100644
--- a/drivers/scsi/scsicam.c
+++ b/drivers/scsi/scsicam.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * scsicam.c - SCSI CAM support functions, use for HDIO_GETGEO, etc.
  *
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 37daf9a42afe..24fe68522716 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -723,13 +723,21 @@ static void sd_config_discard(struct scsi_disk *sdkp, unsigned int mode)
 		break;
 
 	case SD_LBP_WS16:
-		max_blocks = min_not_zero(sdkp->max_ws_blocks,
-					  (u32)SD_MAX_WS16_BLOCKS);
+		if (sdkp->device->unmap_limit_for_ws)
+			max_blocks = sdkp->max_unmap_blocks;
+		else
+			max_blocks = sdkp->max_ws_blocks;
+
+		max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS16_BLOCKS);
 		break;
 
 	case SD_LBP_WS10:
-		max_blocks = min_not_zero(sdkp->max_ws_blocks,
-					  (u32)SD_MAX_WS10_BLOCKS);
+		if (sdkp->device->unmap_limit_for_ws)
+			max_blocks = sdkp->max_unmap_blocks;
+		else
+			max_blocks = sdkp->max_ws_blocks;
+
+		max_blocks = min_not_zero(max_blocks, (u32)SD_MAX_WS10_BLOCKS);
 		break;
 
 	case SD_LBP_ZERO:
@@ -2943,8 +2951,6 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
 				sd_config_discard(sdkp, SD_LBP_WS16);
 			else if (sdkp->lbpws10)
 				sd_config_discard(sdkp, SD_LBP_WS10);
-			else if (sdkp->lbpu && sdkp->max_unmap_blocks)
-				sd_config_discard(sdkp, SD_LBP_UNMAP);
 			else
 				sd_config_discard(sdkp, SD_LBP_DISABLE);
 		}
@@ -3129,8 +3135,6 @@ static int sd_revalidate_disk(struct gendisk *disk)
 		sd_read_security(sdkp, buffer);
 	}
 
-	sdkp->first_scan = 0;
-
 	/*
 	 * We now have all cache related info, determine how we deal
 	 * with flush requests.
@@ -3145,7 +3149,7 @@ static int sd_revalidate_disk(struct gendisk *disk)
 	q->limits.max_dev_sectors = logical_to_sectors(sdp, dev_max);
 
 	/*
-	 * Use the device's preferred I/O size for reads and writes
+	 * Determine the device's preferred I/O size for reads and writes
 	 * unless the reported value is unreasonably small, large, or
 	 * garbage.
 	 */
@@ -3159,8 +3163,19 @@ static int sd_revalidate_disk(struct gendisk *disk)
 		rw_max = min_not_zero(logical_to_sectors(sdp, dev_max),
 				      (sector_t)BLK_DEF_MAX_SECTORS);
 
-	/* Combine with controller limits */
-	q->limits.max_sectors = min(rw_max, queue_max_hw_sectors(q));
+	/* Do not exceed controller limit */
+	rw_max = min(rw_max, queue_max_hw_sectors(q));
+
+	/*
+	 * Only update max_sectors if previously unset or if the current value
+	 * exceeds the capabilities of the hardware.
+	 */
+	if (sdkp->first_scan ||
+	    q->limits.max_sectors > q->limits.max_dev_sectors ||
+	    q->limits.max_sectors > q->limits.max_hw_sectors)
+		q->limits.max_sectors = rw_max;
+
+	sdkp->first_scan = 0;
 
 	set_capacity(disk, logical_to_sectors(sdp, sdkp->capacity));
 	sd_config_write_same(sdkp);
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 99c4dde9b6bf..320de758323e 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_DISK_H
 #define _SCSI_DISK_H
 
diff --git a/drivers/scsi/sense_codes.h b/drivers/scsi/sense_codes.h
index e4e1dccd1f2f..201a536688de 100644
--- a/drivers/scsi/sense_codes.h
+++ b/drivers/scsi/sense_codes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The canonical list of T10 Additional Sense Codes is available at:
  * http://www.t10.org/lists/asc-num.txt [most recent: 20141221]
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index cf0e71db9e51..f098877eed4a 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -217,7 +217,7 @@ static int sg_allow_access(struct file *filp, unsigned char *cmd)
 	if (sfp->parentdp->device->type == TYPE_SCANNER)
 		return 0;
 
-	return blk_verify_command(cmd, filp->f_mode & FMODE_WRITE);
+	return blk_verify_command(cmd, filp->f_mode);
 }
 
 static int
@@ -828,6 +828,39 @@ static int max_sectors_bytes(struct request_queue *q)
 	return max_sectors << 9;
 }
 
+static void
+sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo)
+{
+	Sg_request *srp;
+	int val;
+	unsigned int ms;
+
+	val = 0;
+	list_for_each_entry(srp, &sfp->rq_list, entry) {
+		if (val >= SG_MAX_QUEUE)
+			break;
+		rinfo[val].req_state = srp->done + 1;
+		rinfo[val].problem =
+			srp->header.masked_status &
+			srp->header.host_status &
+			srp->header.driver_status;
+		if (srp->done)
+			rinfo[val].duration =
+				srp->header.duration;
+		else {
+			ms = jiffies_to_msecs(jiffies);
+			rinfo[val].duration =
+				(ms > srp->header.duration) ?
+				(ms - srp->header.duration) : 0;
+		}
+		rinfo[val].orphan = srp->orphan;
+		rinfo[val].sg_io_owned = srp->sg_io_owned;
+		rinfo[val].pack_id = srp->header.pack_id;
+		rinfo[val].usr_ptr = srp->header.usr_ptr;
+		val++;
+	}
+}
+
 static long
 sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
 {
@@ -1012,38 +1045,13 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
 			return -EFAULT;
 		else {
 			sg_req_info_t *rinfo;
-			unsigned int ms;
 
-			rinfo = kmalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE,
-								GFP_KERNEL);
+			rinfo = kzalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE,
+					GFP_KERNEL);
 			if (!rinfo)
 				return -ENOMEM;
 			read_lock_irqsave(&sfp->rq_list_lock, iflags);
-			val = 0;
-			list_for_each_entry(srp, &sfp->rq_list, entry) {
-				if (val >= SG_MAX_QUEUE)
-					break;
-				memset(&rinfo[val], 0, SZ_SG_REQ_INFO);
-				rinfo[val].req_state = srp->done + 1;
-				rinfo[val].problem =
-					srp->header.masked_status &
-					srp->header.host_status &
-					srp->header.driver_status;
-				if (srp->done)
-					rinfo[val].duration =
-						srp->header.duration;
-				else {
-					ms = jiffies_to_msecs(jiffies);
-					rinfo[val].duration =
-						(ms > srp->header.duration) ?
-						(ms - srp->header.duration) : 0;
-				}
-				rinfo[val].orphan = srp->orphan;
-				rinfo[val].sg_io_owned = srp->sg_io_owned;
-				rinfo[val].pack_id = srp->header.pack_id;
-				rinfo[val].usr_ptr = srp->header.usr_ptr;
-				val++;
-			}
+			sg_fill_request_table(sfp, rinfo);
 			read_unlock_irqrestore(&sfp->rq_list_lock, iflags);
 			result = __copy_to_user(p, rinfo,
 						SZ_SG_REQ_INFO * SG_MAX_QUEUE);
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
index 8fe918398336..b2880c7709e6 100644
--- a/drivers/scsi/smartpqi/smartpqi_init.c
+++ b/drivers/scsi/smartpqi/smartpqi_init.c
@@ -2860,11 +2860,12 @@ out:
 
 #define PQI_HEARTBEAT_TIMER_INTERVAL	(10 * HZ)
 
-static void pqi_heartbeat_timer_handler(unsigned long data)
+static void pqi_heartbeat_timer_handler(struct timer_list *t)
 {
 	int num_interrupts;
 	u32 heartbeat_count;
-	struct pqi_ctrl_info *ctrl_info = (struct pqi_ctrl_info *)data;
+	struct pqi_ctrl_info *ctrl_info = from_timer(ctrl_info, t,
+						     heartbeat_timer);
 
 	pqi_check_ctrl_health(ctrl_info);
 	if (pqi_ctrl_offline(ctrl_info))
@@ -2902,8 +2903,6 @@ static void pqi_start_heartbeat_timer(struct pqi_ctrl_info *ctrl_info)
 
 	ctrl_info->heartbeat_timer.expires =
 		jiffies + PQI_HEARTBEAT_TIMER_INTERVAL;
-	ctrl_info->heartbeat_timer.data = (unsigned long)ctrl_info;
-	ctrl_info->heartbeat_timer.function = pqi_heartbeat_timer_handler;
 	add_timer(&ctrl_info->heartbeat_timer);
 }
 
@@ -6465,7 +6464,7 @@ static struct pqi_ctrl_info *pqi_alloc_ctrl_info(int numa_node)
 	INIT_DELAYED_WORK(&ctrl_info->rescan_work, pqi_rescan_worker);
 	INIT_DELAYED_WORK(&ctrl_info->update_time_work, pqi_update_time_worker);
 
-	init_timer(&ctrl_info->heartbeat_timer);
+	timer_setup(&ctrl_info->heartbeat_timer, pqi_heartbeat_timer_handler, 0);
 	INIT_WORK(&ctrl_info->ctrl_offline_work, pqi_ctrl_offline_worker);
 
 	sema_init(&ctrl_info->sync_request_sem,
diff --git a/drivers/scsi/snic/Makefile b/drivers/scsi/snic/Makefile
index ef7c0dd47f40..41546e3cb701 100644
--- a/drivers/scsi/snic/Makefile
+++ b/drivers/scsi/snic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SCSI_SNIC) += snic.o
 
 snic-y := \
diff --git a/drivers/scsi/sr.h b/drivers/scsi/sr.h
index 1de33719ad8e..a2bb7b8bace5 100644
--- a/drivers/scsi/sr.h
+++ b/drivers/scsi/sr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *      sr.h by David Giller
  *      CD-ROM disk driver header file
diff --git a/drivers/scsi/sr_ioctl.c b/drivers/scsi/sr_ioctl.c
index 4610c8c5693f..2a21f2d48592 100644
--- a/drivers/scsi/sr_ioctl.c
+++ b/drivers/scsi/sr_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/fs.h>
diff --git a/drivers/scsi/sr_vendor.c b/drivers/scsi/sr_vendor.c
index 11a238cb2222..e3b0ce25162b 100644
--- a/drivers/scsi/sr_vendor.c
+++ b/drivers/scsi/sr_vendor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* -*-linux-c-*-
 
  * vendor-specific code for SCSI CD-ROM's goes here.
diff --git a/drivers/scsi/st.h b/drivers/scsi/st.h
index 8c732c8de015..95d2e7a7988d 100644
--- a/drivers/scsi/st.h
+++ b/drivers/scsi/st.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _ST_H
 #define _ST_H
diff --git a/drivers/scsi/st_options.h b/drivers/scsi/st_options.h
index d2f947935554..2b6cabd7b6aa 100644
--- a/drivers/scsi/st_options.h
+++ b/drivers/scsi/st_options.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
    The compile-time configurable defaults for the Linux SCSI tape driver.
 
diff --git a/drivers/scsi/ufs/Makefile b/drivers/scsi/ufs/Makefile
index 6e77cb0bfee9..9310c6c83041 100644
--- a/drivers/scsi/ufs/Makefile
+++ b/drivers/scsi/ufs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # UFSHCD makefile
 obj-$(CONFIG_SCSI_UFS_DWC_TC_PCI) += tc-dwc-g210-pci.o ufshcd-dwc.o tc-dwc-g210.o
 obj-$(CONFIG_SCSI_UFS_DWC_TC_PLATFORM) += tc-dwc-g210-pltfrm.o ufshcd-dwc.o tc-dwc-g210.o
diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 6a548e74d704..2b38db2eeafa 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -273,15 +273,18 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
 	bool is_rate_B = (UFS_QCOM_LIMIT_HS_RATE == PA_HS_MODE_B)
 							? true : false;
 
+	if (is_rate_B)
+		phy_set_mode(phy, PHY_MODE_UFS_HS_B);
+
 	/* Assert PHY reset and apply PHY calibration values */
 	ufs_qcom_assert_reset(hba);
 	/* provide 1ms delay to let the reset pulse propagate */
 	usleep_range(1000, 1100);
 
-	ret = ufs_qcom_phy_calibrate_phy(phy, is_rate_B);
-
+	/* phy initialization - calibrate the phy */
+	ret = phy_init(phy);
 	if (ret) {
-		dev_err(hba->dev, "%s: ufs_qcom_phy_calibrate_phy() failed, ret = %d\n",
+		dev_err(hba->dev, "%s: phy init failed, ret = %d\n",
 			__func__, ret);
 		goto out;
 	}
@@ -294,21 +297,22 @@ static int ufs_qcom_power_up_sequence(struct ufs_hba *hba)
 	 * voltage, current to settle down before starting serdes.
 	 */
 	usleep_range(1000, 1100);
-	ret = ufs_qcom_phy_start_serdes(phy);
+
+	/* power on phy - start serdes and phy's power and clocks */
+	ret = phy_power_on(phy);
 	if (ret) {
-		dev_err(hba->dev, "%s: ufs_qcom_phy_start_serdes() failed, ret = %d\n",
+		dev_err(hba->dev, "%s: phy power on failed, ret = %d\n",
 			__func__, ret);
-		goto out;
+		goto out_disable_phy;
 	}
 
-	ret = ufs_qcom_phy_is_pcs_ready(phy);
-	if (ret)
-		dev_err(hba->dev,
-			"%s: is_physical_coding_sublayer_ready() failed, ret = %d\n",
-			__func__, ret);
-
 	ufs_qcom_select_unipro_mode(host);
 
+	return 0;
+
+out_disable_phy:
+	ufs_qcom_assert_reset(hba);
+	phy_exit(phy);
 out:
 	return ret;
 }
@@ -1273,14 +1277,9 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 	ufs_qcom_phy_save_controller_version(host->generic_phy,
 		host->hw_ver.major, host->hw_ver.minor, host->hw_ver.step);
 
-	phy_init(host->generic_phy);
-	err = phy_power_on(host->generic_phy);
-	if (err)
-		goto out_unregister_bus;
-
 	err = ufs_qcom_init_lane_clks(host);
 	if (err)
-		goto out_disable_phy;
+		goto out_variant_clear;
 
 	ufs_qcom_set_caps(hba);
 	ufs_qcom_advertise_quirks(hba);
@@ -1301,10 +1300,6 @@ static int ufs_qcom_init(struct ufs_hba *hba)
 
 	goto out;
 
-out_disable_phy:
-	phy_power_off(host->generic_phy);
-out_unregister_bus:
-	phy_exit(host->generic_phy);
 out_variant_clear:
 	ufshcd_set_variant(hba, NULL);
 out:
diff --git a/drivers/scsi/wd719x.h b/drivers/scsi/wd719x.h
index 9c6dd45f95f5..0455b1633ca7 100644
--- a/drivers/scsi/wd719x.h
+++ b/drivers/scsi/wd719x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _WD719X_H_
 #define _WD719X_H_
 
diff --git a/drivers/sh/Makefile b/drivers/sh/Makefile
index 114203f32843..c53262835e85 100644
--- a/drivers/sh/Makefile
+++ b/drivers/sh/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the SuperH specific drivers.
 #
diff --git a/drivers/sh/intc/internals.h b/drivers/sh/intc/internals.h
index 6ce7f0d26dcf..fa73c173b56a 100644
--- a/drivers/sh/intc/internals.h
+++ b/drivers/sh/intc/internals.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/sh_intc.h>
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile
index 280a6a91a9e2..36dec140ea0d 100644
--- a/drivers/soc/Makefile
+++ b/drivers/soc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Kernel SOC specific device drivers.
 #
@@ -9,6 +10,7 @@ obj-$(CONFIG_ARCH_DOVE)		+= dove/
 obj-$(CONFIG_MACH_DOVE)		+= dove/
 obj-y				+= fsl/
 obj-$(CONFIG_ARCH_MXC)		+= imx/
+obj-$(CONFIG_SOC_XWAY)		+= lantiq/
 obj-$(CONFIG_ARCH_MEDIATEK)	+= mediatek/
 obj-$(CONFIG_ARCH_MESON)	+= amlogic/
 obj-$(CONFIG_ARCH_QCOM)		+= qcom/
diff --git a/drivers/soc/bcm/brcmstb/common.c b/drivers/soc/bcm/brcmstb/common.c
index 22e98a90468c..a71730da6385 100644
--- a/drivers/soc/bcm/brcmstb/common.c
+++ b/drivers/soc/bcm/brcmstb/common.c
@@ -40,6 +40,18 @@ bool soc_is_brcmstb(void)
 	return of_match_node(brcmstb_machine_match, root) != NULL;
 }
 
+u32 brcmstb_get_family_id(void)
+{
+	return family_id;
+}
+EXPORT_SYMBOL(brcmstb_get_family_id);
+
+u32 brcmstb_get_product_id(void)
+{
+	return product_id;
+}
+EXPORT_SYMBOL(brcmstb_get_product_id);
+
 static const struct of_device_id sun_top_ctrl_match[] = {
 	{ .compatible = "brcm,bcm7125-sun-top-ctrl", },
 	{ .compatible = "brcm,bcm7346-sun-top-ctrl", },
diff --git a/drivers/soc/dove/pmu.c b/drivers/soc/dove/pmu.c
index 95d77ec5c5d7..5abb08ffb74d 100644
--- a/drivers/soc/dove/pmu.c
+++ b/drivers/soc/dove/pmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Marvell Dove PMU support
  */
diff --git a/drivers/soc/fsl/qbman/Makefile b/drivers/soc/fsl/qbman/Makefile
index 7ae199f1664e..363982b83ab5 100644
--- a/drivers/soc/fsl/qbman/Makefile
+++ b/drivers/soc/fsl/qbman/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FSL_DPAA)                          += bman_ccsr.o qman_ccsr.o \
 						   bman_portal.o qman_portal.o \
 						   bman.o qman.o
diff --git a/drivers/soc/fsl/qe/Makefile b/drivers/soc/fsl/qe/Makefile
index 2031d385bc7e..55a555304f3a 100644
--- a/drivers/soc/fsl/qe/Makefile
+++ b/drivers/soc/fsl/qe/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux ppc-specific parts of QE
 #
diff --git a/drivers/soc/lantiq/Makefile b/drivers/soc/lantiq/Makefile
new file mode 100644
index 000000000000..be9e866d53e5
--- /dev/null
+++ b/drivers/soc/lantiq/Makefile
@@ -0,0 +1,2 @@
+obj-y				+= fpi-bus.o
+obj-$(CONFIG_XRX200_PHY_FW)	+= gphy.o
diff --git a/drivers/soc/lantiq/fpi-bus.c b/drivers/soc/lantiq/fpi-bus.c
new file mode 100644
index 000000000000..a671c9984c4c
--- /dev/null
+++ b/drivers/soc/lantiq/fpi-bus.c
@@ -0,0 +1,87 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  Copyright (C) 2011-2015 John Crispin <blogic@phrozen.org>
+ *  Copyright (C) 2015 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *  Copyright (C) 2017 Hauke Mehrtens <hauke@hauke-m.de>
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+
+#include <lantiq_soc.h>
+
+#define XBAR_ALWAYS_LAST	0x430
+#define XBAR_FPI_BURST_EN	BIT(1)
+#define XBAR_AHB_BURST_EN	BIT(2)
+
+#define RCU_VR9_BE_AHB1S	0x00000008
+
+static int ltq_fpi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct resource *res_xbar;
+	struct regmap *rcu_regmap;
+	void __iomem *xbar_membase;
+	u32 rcu_ahb_endianness_reg_offset;
+	int ret;
+
+	res_xbar = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	xbar_membase = devm_ioremap_resource(dev, res_xbar);
+	if (IS_ERR(xbar_membase))
+		return PTR_ERR(xbar_membase);
+
+	/* RCU configuration is optional */
+	rcu_regmap = syscon_regmap_lookup_by_phandle(np, "lantiq,rcu");
+	if (IS_ERR(rcu_regmap))
+		return PTR_ERR(rcu_regmap);
+
+	ret = device_property_read_u32(dev, "lantiq,offset-endianness",
+				       &rcu_ahb_endianness_reg_offset);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to get RCU reg offset\n");
+		return ret;
+	}
+
+	ret = regmap_update_bits(rcu_regmap, rcu_ahb_endianness_reg_offset,
+				 RCU_VR9_BE_AHB1S, RCU_VR9_BE_AHB1S);
+	if (ret) {
+		dev_warn(&pdev->dev,
+			 "Failed to configure RCU AHB endianness\n");
+		return ret;
+	}
+
+	/* disable fpi burst */
+	ltq_w32_mask(XBAR_FPI_BURST_EN, 0, xbar_membase + XBAR_ALWAYS_LAST);
+
+	return of_platform_populate(dev->of_node, NULL, NULL, dev);
+}
+
+static const struct of_device_id ltq_fpi_match[] = {
+	{ .compatible = "lantiq,xrx200-fpi" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, ltq_fpi_match);
+
+static struct platform_driver ltq_fpi_driver = {
+	.probe = ltq_fpi_probe,
+	.driver = {
+		.name = "fpi-xway",
+		.of_match_table = ltq_fpi_match,
+	},
+};
+
+module_platform_driver(ltq_fpi_driver);
+
+MODULE_DESCRIPTION("Lantiq FPI bus driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/soc/lantiq/gphy.c b/drivers/soc/lantiq/gphy.c
new file mode 100644
index 000000000000..8d8659463b3e
--- /dev/null
+++ b/drivers/soc/lantiq/gphy.c
@@ -0,0 +1,260 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  Copyright (C) 2012 John Crispin <blogic@phrozen.org>
+ *  Copyright (C) 2016 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *  Copyright (C) 2017 Hauke Mehrtens <hauke@hauke-m.de>
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/reboot.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/property.h>
+#include <dt-bindings/mips/lantiq_rcu_gphy.h>
+
+#include <lantiq_soc.h>
+
+#define XRX200_GPHY_FW_ALIGN	(16 * 1024)
+
+struct xway_gphy_priv {
+	struct clk *gphy_clk_gate;
+	struct reset_control *gphy_reset;
+	struct reset_control *gphy_reset2;
+	struct notifier_block gphy_reboot_nb;
+	void __iomem *membase;
+	char *fw_name;
+};
+
+struct xway_gphy_match_data {
+	char *fe_firmware_name;
+	char *ge_firmware_name;
+};
+
+static const struct xway_gphy_match_data xrx200a1x_gphy_data = {
+	.fe_firmware_name = "lantiq/xrx200_phy22f_a14.bin",
+	.ge_firmware_name = "lantiq/xrx200_phy11g_a14.bin",
+};
+
+static const struct xway_gphy_match_data xrx200a2x_gphy_data = {
+	.fe_firmware_name = "lantiq/xrx200_phy22f_a22.bin",
+	.ge_firmware_name = "lantiq/xrx200_phy11g_a22.bin",
+};
+
+static const struct xway_gphy_match_data xrx300_gphy_data = {
+	.fe_firmware_name = "lantiq/xrx300_phy22f_a21.bin",
+	.ge_firmware_name = "lantiq/xrx300_phy11g_a21.bin",
+};
+
+static const struct of_device_id xway_gphy_match[] = {
+	{ .compatible = "lantiq,xrx200a1x-gphy", .data = &xrx200a1x_gphy_data },
+	{ .compatible = "lantiq,xrx200a2x-gphy", .data = &xrx200a2x_gphy_data },
+	{ .compatible = "lantiq,xrx300-gphy", .data = &xrx300_gphy_data },
+	{ .compatible = "lantiq,xrx330-gphy", .data = &xrx300_gphy_data },
+	{},
+};
+MODULE_DEVICE_TABLE(of, xway_gphy_match);
+
+static struct xway_gphy_priv *to_xway_gphy_priv(struct notifier_block *nb)
+{
+	return container_of(nb, struct xway_gphy_priv, gphy_reboot_nb);
+}
+
+static int xway_gphy_reboot_notify(struct notifier_block *reboot_nb,
+				   unsigned long code, void *unused)
+{
+	struct xway_gphy_priv *priv = to_xway_gphy_priv(reboot_nb);
+
+	if (priv) {
+		reset_control_assert(priv->gphy_reset);
+		reset_control_assert(priv->gphy_reset2);
+	}
+
+	return NOTIFY_DONE;
+}
+
+static int xway_gphy_load(struct device *dev, struct xway_gphy_priv *priv,
+			  dma_addr_t *dev_addr)
+{
+	const struct firmware *fw;
+	void *fw_addr;
+	dma_addr_t dma_addr;
+	size_t size;
+	int ret;
+
+	ret = request_firmware(&fw, priv->fw_name, dev);
+	if (ret) {
+		dev_err(dev, "failed to load firmware: %s, error: %i\n",
+			priv->fw_name, ret);
+		return ret;
+	}
+
+	/*
+	 * GPHY cores need the firmware code in a persistent and contiguous
+	 * memory area with a 16 kB boundary aligned start address.
+	 */
+	size = fw->size + XRX200_GPHY_FW_ALIGN;
+
+	fw_addr = dmam_alloc_coherent(dev, size, &dma_addr, GFP_KERNEL);
+	if (fw_addr) {
+		fw_addr = PTR_ALIGN(fw_addr, XRX200_GPHY_FW_ALIGN);
+		*dev_addr = ALIGN(dma_addr, XRX200_GPHY_FW_ALIGN);
+		memcpy(fw_addr, fw->data, fw->size);
+	} else {
+		dev_err(dev, "failed to alloc firmware memory\n");
+		ret = -ENOMEM;
+	}
+
+	release_firmware(fw);
+
+	return ret;
+}
+
+static int xway_gphy_of_probe(struct platform_device *pdev,
+			      struct xway_gphy_priv *priv)
+{
+	struct device *dev = &pdev->dev;
+	const struct xway_gphy_match_data *gphy_fw_name_cfg;
+	u32 gphy_mode;
+	int ret;
+	struct resource *res_gphy;
+
+	gphy_fw_name_cfg = of_device_get_match_data(dev);
+
+	priv->gphy_clk_gate = devm_clk_get(dev, NULL);
+	if (IS_ERR(priv->gphy_clk_gate)) {
+		dev_err(dev, "Failed to lookup gate clock\n");
+		return PTR_ERR(priv->gphy_clk_gate);
+	}
+
+	res_gphy = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	priv->membase = devm_ioremap_resource(dev, res_gphy);
+	if (IS_ERR(priv->membase))
+		return PTR_ERR(priv->membase);
+
+	priv->gphy_reset = devm_reset_control_get(dev, "gphy");
+	if (IS_ERR(priv->gphy_reset)) {
+		if (PTR_ERR(priv->gphy_reset) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to lookup gphy reset\n");
+		return PTR_ERR(priv->gphy_reset);
+	}
+
+	priv->gphy_reset2 = devm_reset_control_get_optional(dev, "gphy2");
+	if (IS_ERR(priv->gphy_reset2))
+		return PTR_ERR(priv->gphy_reset2);
+
+	ret = device_property_read_u32(dev, "lantiq,gphy-mode", &gphy_mode);
+	/* Default to GE mode */
+	if (ret)
+		gphy_mode = GPHY_MODE_GE;
+
+	switch (gphy_mode) {
+	case GPHY_MODE_FE:
+		priv->fw_name = gphy_fw_name_cfg->fe_firmware_name;
+		break;
+	case GPHY_MODE_GE:
+		priv->fw_name = gphy_fw_name_cfg->ge_firmware_name;
+		break;
+	default:
+		dev_err(dev, "Unknown GPHY mode %d\n", gphy_mode);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int xway_gphy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct xway_gphy_priv *priv;
+	dma_addr_t fw_addr = 0;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	ret = xway_gphy_of_probe(pdev, priv);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(priv->gphy_clk_gate);
+	if (ret)
+		return ret;
+
+	ret = xway_gphy_load(dev, priv, &fw_addr);
+	if (ret) {
+		clk_disable_unprepare(priv->gphy_clk_gate);
+		return ret;
+	}
+
+	reset_control_assert(priv->gphy_reset);
+	reset_control_assert(priv->gphy_reset2);
+
+	iowrite32be(fw_addr, priv->membase);
+
+	reset_control_deassert(priv->gphy_reset);
+	reset_control_deassert(priv->gphy_reset2);
+
+	/* assert the gphy reset because it can hang after a reboot: */
+	priv->gphy_reboot_nb.notifier_call = xway_gphy_reboot_notify;
+	priv->gphy_reboot_nb.priority = -1;
+
+	ret = register_reboot_notifier(&priv->gphy_reboot_nb);
+	if (ret)
+		dev_warn(dev, "Failed to register reboot notifier\n");
+
+	platform_set_drvdata(pdev, priv);
+
+	return ret;
+}
+
+static int xway_gphy_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct xway_gphy_priv *priv = platform_get_drvdata(pdev);
+	int ret;
+
+	reset_control_assert(priv->gphy_reset);
+	reset_control_assert(priv->gphy_reset2);
+
+	iowrite32be(0, priv->membase);
+
+	clk_disable_unprepare(priv->gphy_clk_gate);
+
+	ret = unregister_reboot_notifier(&priv->gphy_reboot_nb);
+	if (ret)
+		dev_warn(dev, "Failed to unregister reboot notifier\n");
+
+	return 0;
+}
+
+static struct platform_driver xway_gphy_driver = {
+	.probe = xway_gphy_probe,
+	.remove = xway_gphy_remove,
+	.driver = {
+		.name = "xway-rcu-gphy",
+		.of_match_table = xway_gphy_match,
+	},
+};
+
+module_platform_driver(xway_gphy_driver);
+
+MODULE_FIRMWARE("lantiq/xrx300_phy11g_a21.bin");
+MODULE_FIRMWARE("lantiq/xrx300_phy22f_a21.bin");
+MODULE_FIRMWARE("lantiq/xrx200_phy11g_a14.bin");
+MODULE_FIRMWARE("lantiq/xrx200_phy11g_a22.bin");
+MODULE_FIRMWARE("lantiq/xrx200_phy22f_a14.bin");
+MODULE_FIRMWARE("lantiq/xrx200_phy22f_a22.bin");
+MODULE_AUTHOR("Martin Blumenstingl <martin.blumenstingl@googlemail.com>");
+MODULE_DESCRIPTION("Lantiq XWAY GPHY Firmware Loader");
+MODULE_LICENSE("GPL");
diff --git a/drivers/soc/mediatek/mtk-scpsys.c b/drivers/soc/mediatek/mtk-scpsys.c
index e1ce8b1b5090..e570b6af2e6f 100644
--- a/drivers/soc/mediatek/mtk-scpsys.c
+++ b/drivers/soc/mediatek/mtk-scpsys.c
@@ -361,17 +361,6 @@ out:
 	return ret;
 }
 
-static bool scpsys_active_wakeup(struct device *dev)
-{
-	struct generic_pm_domain *genpd;
-	struct scp_domain *scpd;
-
-	genpd = pd_to_genpd(dev->pm_domain);
-	scpd = container_of(genpd, struct scp_domain, genpd);
-
-	return scpd->data->active_wakeup;
-}
-
 static void init_clks(struct platform_device *pdev, struct clk **clk)
 {
 	int i;
@@ -466,7 +455,8 @@ static struct scp *init_scp(struct platform_device *pdev,
 		genpd->name = data->name;
 		genpd->power_off = scpsys_power_off;
 		genpd->power_on = scpsys_power_on;
-		genpd->dev_ops.active_wakeup = scpsys_active_wakeup;
+		if (scpd->data->active_wakeup)
+			genpd->flags |= GENPD_FLAG_ACTIVE_WAKEUP;
 	}
 
 	return scp;
diff --git a/drivers/soc/qcom/Makefile b/drivers/soc/qcom/Makefile
index f151de41eb93..fab44666b214 100644
--- a/drivers/soc/qcom/Makefile
+++ b/drivers/soc/qcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_QCOM_GLINK_SSR) +=	glink_ssr.o
 obj-$(CONFIG_QCOM_GSBI)	+=	qcom_gsbi.o
 obj-$(CONFIG_QCOM_MDT_LOADER)	+= mdt_loader.o
diff --git a/drivers/soc/renesas/Makefile b/drivers/soc/renesas/Makefile
index 6b6e7f16104c..763c03d80436 100644
--- a/drivers/soc/renesas/Makefile
+++ b/drivers/soc/renesas/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Generic, must be first because of soc_device_register()
 obj-$(CONFIG_SOC_RENESAS)	+= renesas-soc.o
 
diff --git a/drivers/soc/rockchip/pm_domains.c b/drivers/soc/rockchip/pm_domains.c
index 40b75748835f..5c342167b9db 100644
--- a/drivers/soc/rockchip/pm_domains.c
+++ b/drivers/soc/rockchip/pm_domains.c
@@ -358,17 +358,6 @@ static void rockchip_pd_detach_dev(struct generic_pm_domain *genpd,
 	pm_clk_destroy(dev);
 }
 
-static bool rockchip_active_wakeup(struct device *dev)
-{
-	struct generic_pm_domain *genpd;
-	struct rockchip_pm_domain *pd;
-
-	genpd = pd_to_genpd(dev->pm_domain);
-	pd = container_of(genpd, struct rockchip_pm_domain, genpd);
-
-	return pd->info->active_wakeup;
-}
-
 static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 				      struct device_node *node)
 {
@@ -489,8 +478,9 @@ static int rockchip_pm_add_one_domain(struct rockchip_pmu *pmu,
 	pd->genpd.power_on = rockchip_pd_power_on;
 	pd->genpd.attach_dev = rockchip_pd_attach_dev;
 	pd->genpd.detach_dev = rockchip_pd_detach_dev;
-	pd->genpd.dev_ops.active_wakeup = rockchip_active_wakeup;
 	pd->genpd.flags = GENPD_FLAG_PM_CLK;
+	if (pd_info->active_wakeup)
+		pd->genpd.flags |= GENPD_FLAG_ACTIVE_WAKEUP;
 	pm_genpd_init(&pd->genpd, NULL, false);
 
 	pmu->genpd_data.domains[id] = &pd->genpd;
diff --git a/drivers/soc/tegra/Makefile b/drivers/soc/tegra/Makefile
index 0e52b45721ac..482e108d28aa 100644
--- a/drivers/soc/tegra/Makefile
+++ b/drivers/soc/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += fuse/
 
 obj-y += common.o
diff --git a/drivers/soc/tegra/fuse/Makefile b/drivers/soc/tegra/fuse/Makefile
index 21bc27580178..ea8332cc3980 100644
--- a/drivers/soc/tegra/fuse/Makefile
+++ b/drivers/soc/tegra/fuse/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y					+= fuse-tegra.o
 obj-y					+= fuse-tegra30.o
 obj-y					+= tegra-apbmisc.o
diff --git a/drivers/soc/ti/Makefile b/drivers/soc/ti/Makefile
index 7d572736c86e..8e205287f120 100644
--- a/drivers/soc/ti/Makefile
+++ b/drivers/soc/ti/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # TI Keystone SOC drivers
 #
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index a75f2a2cf780..603783976b81 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -1,10 +1,6 @@
 #
 # SPI driver configuration
 #
-# NOTE:  the reason this doesn't show SPI slave support is mostly that
-# nobody's needed a slave side API yet.  The master-role API is not
-# fully appropriate there, so it'd need some thought to do well.
-#
 menuconfig SPI
 	bool "SPI support"
 	depends on HAS_IOMEM
@@ -379,7 +375,7 @@ config SPI_FSL_DSPI
 	tristate "Freescale DSPI controller"
 	select REGMAP_MMIO
 	depends on HAS_DMA
-	depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || COMPILE_TEST
+	depends on SOC_VF610 || SOC_LS1021A || ARCH_LAYERSCAPE || M5441x || COMPILE_TEST
 	help
 	  This enables support for the Freescale DSPI controller in master
 	  mode. VF610 platform uses the controller.
@@ -626,6 +622,13 @@ config SPI_SIRF
 	help
 	  SPI driver for CSR SiRFprimaII SoCs
 
+config SPI_SPRD_ADI
+	tristate "Spreadtrum ADI controller"
+	depends on ARCH_SPRD || COMPILE_TEST
+	depends on HWSPINLOCK || (COMPILE_TEST && !HWSPINLOCK)
+	help
+	  ADI driver based on SPI for Spreadtrum SoCs.
+
 config SPI_STM32
 	tristate "STMicroelectronics STM32 SPI controller"
 	depends on ARCH_STM32 || COMPILE_TEST
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index a3ae2b70cdc3..34c5f2832ddf 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for kernel SPI drivers.
 #
@@ -90,6 +91,7 @@ obj-$(CONFIG_SPI_SH_HSPI)		+= spi-sh-hspi.o
 obj-$(CONFIG_SPI_SH_MSIOF)		+= spi-sh-msiof.o
 obj-$(CONFIG_SPI_SH_SCI)		+= spi-sh-sci.o
 obj-$(CONFIG_SPI_SIRF)		+= spi-sirf.o
+obj-$(CONFIG_SPI_SPRD_ADI)		+= spi-sprd-adi.o
 obj-$(CONFIG_SPI_STM32) 		+= spi-stm32.o
 obj-$(CONFIG_SPI_ST_SSC4)		+= spi-st-ssc4.o
 obj-$(CONFIG_SPI_SUN4I)			+= spi-sun4i.o
diff --git a/drivers/spi/spi-armada-3700.c b/drivers/spi/spi-armada-3700.c
index 6c7d7a460689..77fe55ce790c 100644
--- a/drivers/spi/spi-armada-3700.c
+++ b/drivers/spi/spi-armada-3700.c
@@ -99,11 +99,6 @@
 /* A3700_SPI_IF_TIME_REG */
 #define A3700_SPI_CLK_CAPT_EDGE		BIT(7)
 
-/* Flags and macros for struct a3700_spi */
-#define A3700_INSTR_CNT			1
-#define A3700_ADDR_CNT			3
-#define A3700_DUMMY_CNT			1
-
 struct a3700_spi {
 	struct spi_master *master;
 	void __iomem *base;
@@ -117,9 +112,6 @@ struct a3700_spi {
 	u8 byte_len;
 	u32 wait_mask;
 	struct completion done;
-	u32 addr_cnt;
-	u32 instr_cnt;
-	size_t hdr_cnt;
 };
 
 static u32 spireg_read(struct a3700_spi *a3700_spi, u32 offset)
@@ -161,7 +153,7 @@ static void a3700_spi_deactivate_cs(struct a3700_spi *a3700_spi,
 }
 
 static int a3700_spi_pin_mode_set(struct a3700_spi *a3700_spi,
-				  unsigned int pin_mode)
+				  unsigned int pin_mode, bool receiving)
 {
 	u32 val;
 
@@ -177,6 +169,9 @@ static int a3700_spi_pin_mode_set(struct a3700_spi *a3700_spi,
 		break;
 	case SPI_NBITS_QUAD:
 		val |= A3700_SPI_DATA_PIN1;
+		/* RX during address reception uses 4-pin */
+		if (receiving)
+			val |= A3700_SPI_ADDR_PIN;
 		break;
 	default:
 		dev_err(&a3700_spi->master->dev, "wrong pin mode %u", pin_mode);
@@ -218,7 +213,7 @@ static void a3700_spi_mode_set(struct a3700_spi *a3700_spi,
 }
 
 static void a3700_spi_clock_set(struct a3700_spi *a3700_spi,
-				unsigned int speed_hz, u16 mode)
+				unsigned int speed_hz)
 {
 	u32 val;
 	u32 prescale;
@@ -236,17 +231,6 @@ static void a3700_spi_clock_set(struct a3700_spi *a3700_spi,
 		val |= A3700_SPI_CLK_CAPT_EDGE;
 		spireg_write(a3700_spi, A3700_SPI_IF_TIME_REG, val);
 	}
-
-	val = spireg_read(a3700_spi, A3700_SPI_IF_CFG_REG);
-	val &= ~(A3700_SPI_CLK_POL | A3700_SPI_CLK_PHA);
-
-	if (mode & SPI_CPOL)
-		val |= A3700_SPI_CLK_POL;
-
-	if (mode & SPI_CPHA)
-		val |= A3700_SPI_CLK_PHA;
-
-	spireg_write(a3700_spi, A3700_SPI_IF_CFG_REG, val);
 }
 
 static void a3700_spi_bytelen_set(struct a3700_spi *a3700_spi, unsigned int len)
@@ -392,7 +376,8 @@ static bool a3700_spi_wait_completion(struct spi_device *spi)
 
 	spireg_write(a3700_spi, A3700_SPI_INT_MASK_REG, 0);
 
-	return true;
+	/* Timeout was reached */
+	return false;
 }
 
 static bool a3700_spi_transfer_wait(struct spi_device *spi,
@@ -427,7 +412,7 @@ static void a3700_spi_transfer_setup(struct spi_device *spi,
 
 	a3700_spi = spi_master_get_devdata(spi->master);
 
-	a3700_spi_clock_set(a3700_spi, xfer->speed_hz, spi->mode);
+	a3700_spi_clock_set(a3700_spi, xfer->speed_hz);
 
 	byte_len = xfer->bits_per_word >> 3;
 
@@ -446,59 +431,43 @@ static void a3700_spi_set_cs(struct spi_device *spi, bool enable)
 
 static void a3700_spi_header_set(struct a3700_spi *a3700_spi)
 {
-	u32 instr_cnt = 0, addr_cnt = 0, dummy_cnt = 0;
+	unsigned int addr_cnt;
 	u32 val = 0;
 
 	/* Clear the header registers */
 	spireg_write(a3700_spi, A3700_SPI_IF_INST_REG, 0);
 	spireg_write(a3700_spi, A3700_SPI_IF_ADDR_REG, 0);
 	spireg_write(a3700_spi, A3700_SPI_IF_RMODE_REG, 0);
+	spireg_write(a3700_spi, A3700_SPI_IF_HDR_CNT_REG, 0);
 
 	/* Set header counters */
 	if (a3700_spi->tx_buf) {
-		if (a3700_spi->buf_len <= a3700_spi->instr_cnt) {
-			instr_cnt = a3700_spi->buf_len;
-		} else if (a3700_spi->buf_len <= (a3700_spi->instr_cnt +
-						  a3700_spi->addr_cnt)) {
-			instr_cnt = a3700_spi->instr_cnt;
-			addr_cnt = a3700_spi->buf_len - instr_cnt;
-		} else if (a3700_spi->buf_len <= a3700_spi->hdr_cnt) {
-			instr_cnt = a3700_spi->instr_cnt;
-			addr_cnt = a3700_spi->addr_cnt;
-			/* Need to handle the normal write case with 1 byte
-			 * data
-			 */
-			if (!a3700_spi->tx_buf[instr_cnt + addr_cnt])
-				dummy_cnt = a3700_spi->buf_len - instr_cnt -
-					    addr_cnt;
+		/*
+		 * when tx data is not 4 bytes aligned, there will be unexpected
+		 * bytes out of SPI output register, since it always shifts out
+		 * as whole 4 bytes. This might cause incorrect transaction with
+		 * some devices. To avoid that, use SPI header count feature to
+		 * transfer up to 3 bytes of data first, and then make the rest
+		 * of data 4-byte aligned.
+		 */
+		addr_cnt = a3700_spi->buf_len % 4;
+		if (addr_cnt) {
+			val = (addr_cnt & A3700_SPI_ADDR_CNT_MASK)
+				<< A3700_SPI_ADDR_CNT_BIT;
+			spireg_write(a3700_spi, A3700_SPI_IF_HDR_CNT_REG, val);
+
+			/* Update the buffer length to be transferred */
+			a3700_spi->buf_len -= addr_cnt;
+
+			/* transfer 1~3 bytes through address count */
+			val = 0;
+			while (addr_cnt--) {
+				val = (val << 8) | a3700_spi->tx_buf[0];
+				a3700_spi->tx_buf++;
+			}
+			spireg_write(a3700_spi, A3700_SPI_IF_ADDR_REG, val);
 		}
-		val |= ((instr_cnt & A3700_SPI_INSTR_CNT_MASK)
-			<< A3700_SPI_INSTR_CNT_BIT);
-		val |= ((addr_cnt & A3700_SPI_ADDR_CNT_MASK)
-			<< A3700_SPI_ADDR_CNT_BIT);
-		val |= ((dummy_cnt & A3700_SPI_DUMMY_CNT_MASK)
-			<< A3700_SPI_DUMMY_CNT_BIT);
-	}
-	spireg_write(a3700_spi, A3700_SPI_IF_HDR_CNT_REG, val);
-
-	/* Update the buffer length to be transferred */
-	a3700_spi->buf_len -= (instr_cnt + addr_cnt + dummy_cnt);
-
-	/* Set Instruction */
-	val = 0;
-	while (instr_cnt--) {
-		val = (val << 8) | a3700_spi->tx_buf[0];
-		a3700_spi->tx_buf++;
 	}
-	spireg_write(a3700_spi, A3700_SPI_IF_INST_REG, val);
-
-	/* Set Address */
-	val = 0;
-	while (addr_cnt--) {
-		val = (val << 8) | a3700_spi->tx_buf[0];
-		a3700_spi->tx_buf++;
-	}
-	spireg_write(a3700_spi, A3700_SPI_IF_ADDR_REG, val);
 }
 
 static int a3700_is_wfifo_full(struct a3700_spi *a3700_spi)
@@ -512,35 +481,12 @@ static int a3700_is_wfifo_full(struct a3700_spi *a3700_spi)
 static int a3700_spi_fifo_write(struct a3700_spi *a3700_spi)
 {
 	u32 val;
-	int i = 0;
 
 	while (!a3700_is_wfifo_full(a3700_spi) && a3700_spi->buf_len) {
-		val = 0;
-		if (a3700_spi->buf_len >= 4) {
-			val = cpu_to_le32(*(u32 *)a3700_spi->tx_buf);
-			spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, val);
-
-			a3700_spi->buf_len -= 4;
-			a3700_spi->tx_buf += 4;
-		} else {
-			/*
-			 * If the remained buffer length is less than 4-bytes,
-			 * we should pad the write buffer with all ones. So that
-			 * it avoids overwrite the unexpected bytes following
-			 * the last one.
-			 */
-			val = GENMASK(31, 0);
-			while (a3700_spi->buf_len) {
-				val &= ~(0xff << (8 * i));
-				val |= *a3700_spi->tx_buf++ << (8 * i);
-				i++;
-				a3700_spi->buf_len--;
-
-				spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG,
-					     val);
-			}
-			break;
-		}
+		val = cpu_to_le32(*(u32 *)a3700_spi->tx_buf);
+		spireg_write(a3700_spi, A3700_SPI_DATA_OUT_REG, val);
+		a3700_spi->buf_len -= 4;
+		a3700_spi->tx_buf += 4;
 	}
 
 	return 0;
@@ -627,6 +573,8 @@ static int a3700_spi_prepare_message(struct spi_master *master,
 
 	a3700_spi_bytelen_set(a3700_spi, 4);
 
+	a3700_spi_mode_set(a3700_spi, spi->mode);
+
 	return 0;
 }
 
@@ -645,15 +593,18 @@ static int a3700_spi_transfer_one(struct spi_master *master,
 	a3700_spi->rx_buf  = xfer->rx_buf;
 	a3700_spi->buf_len = xfer->len;
 
-	/* SPI transfer headers */
-	a3700_spi_header_set(a3700_spi);
-
 	if (xfer->tx_buf)
 		nbits = xfer->tx_nbits;
 	else if (xfer->rx_buf)
 		nbits = xfer->rx_nbits;
 
-	a3700_spi_pin_mode_set(a3700_spi, nbits);
+	a3700_spi_pin_mode_set(a3700_spi, nbits, xfer->rx_buf ? true : false);
+
+	/* Flush the FIFOs */
+	a3700_spi_fifo_flush(a3700_spi);
+
+	/* Transfer first bytes of data when buffer is not 4-byte aligned */
+	a3700_spi_header_set(a3700_spi);
 
 	if (xfer->rx_buf) {
 		/* Set read data length */
@@ -733,16 +684,11 @@ static int a3700_spi_transfer_one(struct spi_master *master,
 				dev_err(&spi->dev, "wait wfifo empty timed out\n");
 				return -ETIMEDOUT;
 			}
-		} else {
-			/*
-			 * If the instruction in SPI_INSTR does not require data
-			 * to be written to the SPI device, wait until SPI_RDY
-			 * is 1 for the SPI interface to be in idle.
-			 */
-			if (!a3700_spi_transfer_wait(spi, A3700_SPI_XFER_RDY)) {
-				dev_err(&spi->dev, "wait xfer ready timed out\n");
-				return -ETIMEDOUT;
-			}
+		}
+
+		if (!a3700_spi_transfer_wait(spi, A3700_SPI_XFER_RDY)) {
+			dev_err(&spi->dev, "wait xfer ready timed out\n");
+			return -ETIMEDOUT;
 		}
 
 		val = spireg_read(a3700_spi, A3700_SPI_IF_CFG_REG);
@@ -834,10 +780,6 @@ static int a3700_spi_probe(struct platform_device *pdev)
 	memset(spi, 0, sizeof(struct a3700_spi));
 
 	spi->master = master;
-	spi->instr_cnt = A3700_INSTR_CNT;
-	spi->addr_cnt = A3700_ADDR_CNT;
-	spi->hdr_cnt = A3700_INSTR_CNT + A3700_ADDR_CNT +
-		       A3700_DUMMY_CNT;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	spi->base = devm_ioremap_resource(dev, res);
diff --git a/drivers/spi/spi-axi-spi-engine.c b/drivers/spi/spi-axi-spi-engine.c
index 6ab4c7700228..68cfc351b47f 100644
--- a/drivers/spi/spi-axi-spi-engine.c
+++ b/drivers/spi/spi-axi-spi-engine.c
@@ -553,7 +553,7 @@ err_put_master:
 
 static int spi_engine_remove(struct platform_device *pdev)
 {
-	struct spi_master *master = platform_get_drvdata(pdev);
+	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct spi_engine *spi_engine = spi_master_get_devdata(master);
 	int irq = platform_get_irq(pdev, 0);
 
@@ -561,6 +561,8 @@ static int spi_engine_remove(struct platform_device *pdev)
 
 	free_irq(irq, master);
 
+	spi_master_put(master);
+
 	writel_relaxed(0xff, spi_engine->base + SPI_ENGINE_REG_INT_PENDING);
 	writel_relaxed(0x00, spi_engine->base + SPI_ENGINE_REG_INT_ENABLE);
 	writel_relaxed(0x01, spi_engine->base + SPI_ENGINE_REG_RESET);
diff --git a/drivers/spi/spi-bcm-qspi.c b/drivers/spi/spi-bcm-qspi.c
index 6ef6c44f39f5..a172ab299e80 100644
--- a/drivers/spi/spi-bcm-qspi.c
+++ b/drivers/spi/spi-bcm-qspi.c
@@ -1250,7 +1250,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 			goto qspi_probe_err;
 		}
 	} else {
-		goto qspi_probe_err;
+		goto qspi_resource_err;
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "bspi");
@@ -1272,7 +1272,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 		qspi->base[CHIP_SELECT]  = devm_ioremap_resource(dev, res);
 		if (IS_ERR(qspi->base[CHIP_SELECT])) {
 			ret = PTR_ERR(qspi->base[CHIP_SELECT]);
-			goto qspi_probe_err;
+			goto qspi_resource_err;
 		}
 	}
 
@@ -1280,7 +1280,7 @@ int bcm_qspi_probe(struct platform_device *pdev,
 				GFP_KERNEL);
 	if (!qspi->dev_ids) {
 		ret = -ENOMEM;
-		goto qspi_probe_err;
+		goto qspi_resource_err;
 	}
 
 	for (val = 0; val < num_irqs; val++) {
@@ -1369,8 +1369,9 @@ qspi_reg_err:
 	bcm_qspi_hw_uninit(qspi);
 	clk_disable_unprepare(qspi->clk);
 qspi_probe_err:
-	spi_master_put(master);
 	kfree(qspi->dev_ids);
+qspi_resource_err:
+	spi_master_put(master);
 	return ret;
 }
 /* probe function to be called by SoC specific platform driver probe */
diff --git a/drivers/spi/spi-bcm53xx.h b/drivers/spi/spi-bcm53xx.h
index 73575dfe6916..03e3442086ec 100644
--- a/drivers/spi/spi-bcm53xx.h
+++ b/drivers/spi/spi-bcm53xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SPI_BCM53XX_H
 #define SPI_BCM53XX_H
 
diff --git a/drivers/spi/spi-bitbang-txrx.h b/drivers/spi/spi-bitbang-txrx.h
index 47bb9b898dfd..ae61d72c7d28 100644
--- a/drivers/spi/spi-bitbang-txrx.h
+++ b/drivers/spi/spi-bitbang-txrx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Mix this utility code with some glue code to get one of several types of
  * simple SPI master driver.  Two do polled word-at-a-time I/O:
diff --git a/drivers/spi/spi-cavium.h b/drivers/spi/spi-cavium.h
index 1f91d61b745b..1f3ac463a20b 100644
--- a/drivers/spi/spi-cavium.h
+++ b/drivers/spi/spi-cavium.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPI_CAVIUM_H
 #define __SPI_CAVIUM_H
 
diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
index da5eab62df34..5c07cf8f19e0 100644
--- a/drivers/spi/spi-dw.h
+++ b/drivers/spi/spi-dw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DW_SPI_HEADER_H
 #define DW_SPI_HEADER_H
 
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index d89127f4a46d..f652f70cb8db 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -32,6 +32,7 @@
 #include <linux/regmap.h>
 #include <linux/sched.h>
 #include <linux/spi/spi.h>
+#include <linux/spi/spi-fsl-dspi.h>
 #include <linux/spi/spi_bitbang.h>
 #include <linux/time.h>
 
@@ -151,6 +152,11 @@ static const struct fsl_dspi_devtype_data ls2085a_data = {
 	.max_clock_factor = 8,
 };
 
+static const struct fsl_dspi_devtype_data coldfire_data = {
+	.trans_mode = DSPI_EOQ_MODE,
+	.max_clock_factor = 8,
+};
+
 struct fsl_dspi_dma {
 	/* Length of transfer in words of DSPI_FIFO_SIZE */
 	u32 curr_xfer_len;
@@ -741,6 +747,7 @@ static int dspi_setup(struct spi_device *spi)
 {
 	struct chip_data *chip;
 	struct fsl_dspi *dspi = spi_master_get_devdata(spi->master);
+	struct fsl_dspi_platform_data *pdata;
 	u32 cs_sck_delay = 0, sck_cs_delay = 0;
 	unsigned char br = 0, pbr = 0, pcssck = 0, cssck = 0;
 	unsigned char pasc = 0, asc = 0, fmsz = 0;
@@ -761,11 +768,18 @@ static int dspi_setup(struct spi_device *spi)
 			return -ENOMEM;
 	}
 
-	of_property_read_u32(spi->dev.of_node, "fsl,spi-cs-sck-delay",
-			&cs_sck_delay);
+	pdata = dev_get_platdata(&dspi->pdev->dev);
 
-	of_property_read_u32(spi->dev.of_node, "fsl,spi-sck-cs-delay",
-			&sck_cs_delay);
+	if (!pdata) {
+		of_property_read_u32(spi->dev.of_node, "fsl,spi-cs-sck-delay",
+				&cs_sck_delay);
+
+		of_property_read_u32(spi->dev.of_node, "fsl,spi-sck-cs-delay",
+				&sck_cs_delay);
+	} else {
+		cs_sck_delay = pdata->cs_sck_delay;
+		sck_cs_delay = pdata->sck_cs_delay;
+	}
 
 	chip->mcr_val = SPI_MCR_MASTER | SPI_MCR_PCSIS |
 		SPI_MCR_CLR_TXF | SPI_MCR_CLR_RXF;
@@ -949,6 +963,7 @@ static int dspi_probe(struct platform_device *pdev)
 	struct fsl_dspi *dspi;
 	struct resource *res;
 	void __iomem *base;
+	struct fsl_dspi_platform_data *pdata;
 	int ret = 0, cs_num, bus_num;
 
 	master = spi_alloc_master(&pdev->dev, sizeof(struct fsl_dspi));
@@ -969,25 +984,34 @@ static int dspi_probe(struct platform_device *pdev)
 	master->bits_per_word_mask = SPI_BPW_MASK(4) | SPI_BPW_MASK(8) |
 					SPI_BPW_MASK(16);
 
-	ret = of_property_read_u32(np, "spi-num-chipselects", &cs_num);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "can't get spi-num-chipselects\n");
-		goto out_master_put;
-	}
-	master->num_chipselect = cs_num;
+	pdata = dev_get_platdata(&pdev->dev);
+	if (pdata) {
+		master->num_chipselect = pdata->cs_num;
+		master->bus_num = pdata->bus_num;
 
-	ret = of_property_read_u32(np, "bus-num", &bus_num);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "can't get bus-num\n");
-		goto out_master_put;
-	}
-	master->bus_num = bus_num;
+		dspi->devtype_data = &coldfire_data;
+	} else {
 
-	dspi->devtype_data = of_device_get_match_data(&pdev->dev);
-	if (!dspi->devtype_data) {
-		dev_err(&pdev->dev, "can't get devtype_data\n");
-		ret = -EFAULT;
-		goto out_master_put;
+		ret = of_property_read_u32(np, "spi-num-chipselects", &cs_num);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "can't get spi-num-chipselects\n");
+			goto out_master_put;
+		}
+		master->num_chipselect = cs_num;
+
+		ret = of_property_read_u32(np, "bus-num", &bus_num);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "can't get bus-num\n");
+			goto out_master_put;
+		}
+		master->bus_num = bus_num;
+
+		dspi->devtype_data = of_device_get_match_data(&pdev->dev);
+		if (!dspi->devtype_data) {
+			dev_err(&pdev->dev, "can't get devtype_data\n");
+			ret = -EFAULT;
+			goto out_master_put;
+		}
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index babb15f07995..79ddefe4180d 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -53,10 +53,13 @@
 /* generic defines to abstract from the different register layouts */
 #define MXC_INT_RR	(1 << 0) /* Receive data ready interrupt */
 #define MXC_INT_TE	(1 << 1) /* Transmit FIFO empty interrupt */
+#define MXC_INT_RDR	BIT(4) /* Receive date threshold interrupt */
 
 /* The maximum  bytes that a sdma BD can transfer.*/
 #define MAX_SDMA_BD_BYTES  (1 << 15)
 #define MX51_ECSPI_CTRL_MAX_BURST	512
+/* The maximum bytes that IMX53_ECSPI can transfer in slave mode.*/
+#define MX53_MAX_TRANSFER_BYTES		512
 
 enum spi_imx_devtype {
 	IMX1_CSPI,
@@ -76,7 +79,9 @@ struct spi_imx_devtype_data {
 	void (*trigger)(struct spi_imx_data *);
 	int (*rx_available)(struct spi_imx_data *);
 	void (*reset)(struct spi_imx_data *);
+	void (*disable)(struct spi_imx_data *);
 	bool has_dmamode;
+	bool has_slavemode;
 	unsigned int fifo_size;
 	bool dynamic_burst;
 	enum spi_imx_devtype devtype;
@@ -108,6 +113,11 @@ struct spi_imx_data {
 	unsigned int dynamic_burst, read_u32;
 	unsigned int word_mask;
 
+	/* Slave mode */
+	bool slave_mode;
+	bool slave_aborted;
+	unsigned int slave_burst;
+
 	/* DMA */
 	bool usedma;
 	u32 wml;
@@ -221,6 +231,9 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
 	if (!master->dma_rx)
 		return false;
 
+	if (spi_imx->slave_mode)
+		return false;
+
 	bytes_per_word = spi_imx_bytes_per_word(transfer->bits_per_word);
 
 	if (bytes_per_word != 1 && bytes_per_word != 2 && bytes_per_word != 4)
@@ -262,6 +275,7 @@ static bool spi_imx_can_dma(struct spi_master *master, struct spi_device *spi,
 #define MX51_ECSPI_INT		0x10
 #define MX51_ECSPI_INT_TEEN		(1 <<  0)
 #define MX51_ECSPI_INT_RREN		(1 <<  3)
+#define MX51_ECSPI_INT_RDREN		(1 <<  4)
 
 #define MX51_ECSPI_DMA      0x14
 #define MX51_ECSPI_DMA_TX_WML(wml)	((wml) & 0x3f)
@@ -378,6 +392,44 @@ static void spi_imx_buf_tx_swap(struct spi_imx_data *spi_imx)
 		spi_imx_buf_tx_u16(spi_imx);
 }
 
+static void mx53_ecspi_rx_slave(struct spi_imx_data *spi_imx)
+{
+	u32 val = be32_to_cpu(readl(spi_imx->base + MXC_CSPIRXDATA));
+
+	if (spi_imx->rx_buf) {
+		int n_bytes = spi_imx->slave_burst % sizeof(val);
+
+		if (!n_bytes)
+			n_bytes = sizeof(val);
+
+		memcpy(spi_imx->rx_buf,
+		       ((u8 *)&val) + sizeof(val) - n_bytes, n_bytes);
+
+		spi_imx->rx_buf += n_bytes;
+		spi_imx->slave_burst -= n_bytes;
+	}
+}
+
+static void mx53_ecspi_tx_slave(struct spi_imx_data *spi_imx)
+{
+	u32 val = 0;
+	int n_bytes = spi_imx->count % sizeof(val);
+
+	if (!n_bytes)
+		n_bytes = sizeof(val);
+
+	if (spi_imx->tx_buf) {
+		memcpy(((u8 *)&val) + sizeof(val) - n_bytes,
+		       spi_imx->tx_buf, n_bytes);
+		val = cpu_to_be32(val);
+		spi_imx->tx_buf += n_bytes;
+	}
+
+	spi_imx->count -= n_bytes;
+
+	writel(val, spi_imx->base + MXC_CSPITXDATA);
+}
+
 /* MX51 eCSPI */
 static unsigned int mx51_ecspi_clkdiv(struct spi_imx_data *spi_imx,
 				      unsigned int fspi, unsigned int *fres)
@@ -427,6 +479,9 @@ static void mx51_ecspi_intctrl(struct spi_imx_data *spi_imx, int enable)
 	if (enable & MXC_INT_RR)
 		val |= MX51_ECSPI_INT_RREN;
 
+	if (enable & MXC_INT_RDR)
+		val |= MX51_ECSPI_INT_RDREN;
+
 	writel(val, spi_imx->base + MX51_ECSPI_INT);
 }
 
@@ -439,6 +494,15 @@ static void mx51_ecspi_trigger(struct spi_imx_data *spi_imx)
 	writel(reg, spi_imx->base + MX51_ECSPI_CTRL);
 }
 
+static void mx51_ecspi_disable(struct spi_imx_data *spi_imx)
+{
+	u32 ctrl;
+
+	ctrl = readl(spi_imx->base + MX51_ECSPI_CTRL);
+	ctrl &= ~MX51_ECSPI_CTRL_ENABLE;
+	writel(ctrl, spi_imx->base + MX51_ECSPI_CTRL);
+}
+
 static int mx51_ecspi_config(struct spi_device *spi)
 {
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
@@ -446,14 +510,11 @@ static int mx51_ecspi_config(struct spi_device *spi)
 	u32 clk = spi_imx->speed_hz, delay, reg;
 	u32 cfg = readl(spi_imx->base + MX51_ECSPI_CONFIG);
 
-	/*
-	 * The hardware seems to have a race condition when changing modes. The
-	 * current assumption is that the selection of the channel arrives
-	 * earlier in the hardware than the mode bits when they are written at
-	 * the same time.
-	 * So set master mode for all channels as we do not support slave mode.
-	 */
-	ctrl |= MX51_ECSPI_CTRL_MODE_MASK;
+	/* set Master or Slave mode */
+	if (spi_imx->slave_mode)
+		ctrl &= ~MX51_ECSPI_CTRL_MODE_MASK;
+	else
+		ctrl |= MX51_ECSPI_CTRL_MODE_MASK;
 
 	/*
 	 * Enable SPI_RDY handling (falling edge/level triggered).
@@ -468,9 +529,22 @@ static int mx51_ecspi_config(struct spi_device *spi)
 	/* set chip select to use */
 	ctrl |= MX51_ECSPI_CTRL_CS(spi->chip_select);
 
-	ctrl |= (spi_imx->bits_per_word - 1) << MX51_ECSPI_CTRL_BL_OFFSET;
+	if (spi_imx->slave_mode && is_imx53_ecspi(spi_imx))
+		ctrl |= (spi_imx->slave_burst * 8 - 1)
+			<< MX51_ECSPI_CTRL_BL_OFFSET;
+	else
+		ctrl |= (spi_imx->bits_per_word - 1)
+			<< MX51_ECSPI_CTRL_BL_OFFSET;
 
-	cfg |= MX51_ECSPI_CONFIG_SBBCTRL(spi->chip_select);
+	/*
+	 * eCSPI burst completion by Chip Select signal in Slave mode
+	 * is not functional for imx53 Soc, config SPI burst completed when
+	 * BURST_LENGTH + 1 bits are received
+	 */
+	if (spi_imx->slave_mode && is_imx53_ecspi(spi_imx))
+		cfg &= ~MX51_ECSPI_CONFIG_SBBCTRL(spi->chip_select);
+	else
+		cfg |= MX51_ECSPI_CONFIG_SBBCTRL(spi->chip_select);
 
 	if (spi->mode & SPI_CPHA)
 		cfg |= MX51_ECSPI_CONFIG_SCLKPHA(spi->chip_select);
@@ -805,6 +879,7 @@ static struct spi_imx_devtype_data imx1_cspi_devtype_data = {
 	.fifo_size = 8,
 	.has_dmamode = false,
 	.dynamic_burst = false,
+	.has_slavemode = false,
 	.devtype = IMX1_CSPI,
 };
 
@@ -817,6 +892,7 @@ static struct spi_imx_devtype_data imx21_cspi_devtype_data = {
 	.fifo_size = 8,
 	.has_dmamode = false,
 	.dynamic_burst = false,
+	.has_slavemode = false,
 	.devtype = IMX21_CSPI,
 };
 
@@ -830,6 +906,7 @@ static struct spi_imx_devtype_data imx27_cspi_devtype_data = {
 	.fifo_size = 8,
 	.has_dmamode = false,
 	.dynamic_burst = false,
+	.has_slavemode = false,
 	.devtype = IMX27_CSPI,
 };
 
@@ -842,6 +919,7 @@ static struct spi_imx_devtype_data imx31_cspi_devtype_data = {
 	.fifo_size = 8,
 	.has_dmamode = false,
 	.dynamic_burst = false,
+	.has_slavemode = false,
 	.devtype = IMX31_CSPI,
 };
 
@@ -855,6 +933,7 @@ static struct spi_imx_devtype_data imx35_cspi_devtype_data = {
 	.fifo_size = 8,
 	.has_dmamode = true,
 	.dynamic_burst = false,
+	.has_slavemode = false,
 	.devtype = IMX35_CSPI,
 };
 
@@ -867,6 +946,8 @@ static struct spi_imx_devtype_data imx51_ecspi_devtype_data = {
 	.fifo_size = 64,
 	.has_dmamode = true,
 	.dynamic_burst = true,
+	.has_slavemode = true,
+	.disable = mx51_ecspi_disable,
 	.devtype = IMX51_ECSPI,
 };
 
@@ -878,6 +959,8 @@ static struct spi_imx_devtype_data imx53_ecspi_devtype_data = {
 	.reset = mx51_ecspi_reset,
 	.fifo_size = 64,
 	.has_dmamode = true,
+	.has_slavemode = true,
+	.disable = mx51_ecspi_disable,
 	.devtype = IMX53_ECSPI,
 };
 
@@ -945,14 +1028,16 @@ static void spi_imx_push(struct spi_imx_data *spi_imx)
 		spi_imx->txfifo++;
 	}
 
-	spi_imx->devtype_data->trigger(spi_imx);
+	if (!spi_imx->slave_mode)
+		spi_imx->devtype_data->trigger(spi_imx);
 }
 
 static irqreturn_t spi_imx_isr(int irq, void *dev_id)
 {
 	struct spi_imx_data *spi_imx = dev_id;
 
-	while (spi_imx->devtype_data->rx_available(spi_imx)) {
+	while (spi_imx->txfifo &&
+	       spi_imx->devtype_data->rx_available(spi_imx)) {
 		spi_imx->rx(spi_imx);
 		spi_imx->txfifo--;
 	}
@@ -1034,7 +1119,7 @@ static int spi_imx_setupxfer(struct spi_device *spi,
 	spi_imx->speed_hz  = t->speed_hz;
 
 	/* Initialize the functions for transfer */
-	if (spi_imx->devtype_data->dynamic_burst) {
+	if (spi_imx->devtype_data->dynamic_burst && !spi_imx->slave_mode) {
 		u32 mask;
 
 		spi_imx->dynamic_burst = 0;
@@ -1078,6 +1163,12 @@ static int spi_imx_setupxfer(struct spi_device *spi,
 			return ret;
 	}
 
+	if (is_imx53_ecspi(spi_imx) && spi_imx->slave_mode) {
+		spi_imx->rx = mx53_ecspi_rx_slave;
+		spi_imx->tx = mx53_ecspi_tx_slave;
+		spi_imx->slave_burst = t->len;
+	}
+
 	spi_imx->devtype_data->config(spi);
 
 	return 0;
@@ -1262,11 +1353,61 @@ static int spi_imx_pio_transfer(struct spi_device *spi,
 	return transfer->len;
 }
 
+static int spi_imx_pio_transfer_slave(struct spi_device *spi,
+				      struct spi_transfer *transfer)
+{
+	struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
+	int ret = transfer->len;
+
+	if (is_imx53_ecspi(spi_imx) &&
+	    transfer->len > MX53_MAX_TRANSFER_BYTES) {
+		dev_err(&spi->dev, "Transaction too big, max size is %d bytes\n",
+			MX53_MAX_TRANSFER_BYTES);
+		return -EMSGSIZE;
+	}
+
+	spi_imx->tx_buf = transfer->tx_buf;
+	spi_imx->rx_buf = transfer->rx_buf;
+	spi_imx->count = transfer->len;
+	spi_imx->txfifo = 0;
+
+	reinit_completion(&spi_imx->xfer_done);
+	spi_imx->slave_aborted = false;
+
+	spi_imx_push(spi_imx);
+
+	spi_imx->devtype_data->intctrl(spi_imx, MXC_INT_TE | MXC_INT_RDR);
+
+	if (wait_for_completion_interruptible(&spi_imx->xfer_done) ||
+	    spi_imx->slave_aborted) {
+		dev_dbg(&spi->dev, "interrupted\n");
+		ret = -EINTR;
+	}
+
+	/* ecspi has a HW issue when works in Slave mode,
+	 * after 64 words writtern to TXFIFO, even TXFIFO becomes empty,
+	 * ECSPI_TXDATA keeps shift out the last word data,
+	 * so we have to disable ECSPI when in slave mode after the
+	 * transfer completes
+	 */
+	if (spi_imx->devtype_data->disable)
+		spi_imx->devtype_data->disable(spi_imx);
+
+	return ret;
+}
+
 static int spi_imx_transfer(struct spi_device *spi,
 				struct spi_transfer *transfer)
 {
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
 
+	/* flush rxfifo before transfer */
+	while (spi_imx->devtype_data->rx_available(spi_imx))
+		spi_imx->rx(spi_imx);
+
+	if (spi_imx->slave_mode)
+		return spi_imx_pio_transfer_slave(spi, transfer);
+
 	if (spi_imx->usedma)
 		return spi_imx_dma_transfer(spi_imx, transfer);
 	else
@@ -1323,6 +1464,16 @@ spi_imx_unprepare_message(struct spi_master *master, struct spi_message *msg)
 	return 0;
 }
 
+static int spi_imx_slave_abort(struct spi_master *master)
+{
+	struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
+
+	spi_imx->slave_aborted = true;
+	complete(&spi_imx->xfer_done);
+
+	return 0;
+}
+
 static int spi_imx_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -1334,13 +1485,23 @@ static int spi_imx_probe(struct platform_device *pdev)
 	struct spi_imx_data *spi_imx;
 	struct resource *res;
 	int i, ret, irq, spi_drctl;
+	const struct spi_imx_devtype_data *devtype_data = of_id ? of_id->data :
+		(struct spi_imx_devtype_data *)pdev->id_entry->driver_data;
+	bool slave_mode;
 
 	if (!np && !mxc_platform_info) {
 		dev_err(&pdev->dev, "can't get the platform data\n");
 		return -EINVAL;
 	}
 
-	master = spi_alloc_master(&pdev->dev, sizeof(struct spi_imx_data));
+	slave_mode = devtype_data->has_slavemode &&
+			of_property_read_bool(np, "spi-slave");
+	if (slave_mode)
+		master = spi_alloc_slave(&pdev->dev,
+					 sizeof(struct spi_imx_data));
+	else
+		master = spi_alloc_master(&pdev->dev,
+					  sizeof(struct spi_imx_data));
 	if (!master)
 		return -ENOMEM;
 
@@ -1358,20 +1519,29 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx = spi_master_get_devdata(master);
 	spi_imx->bitbang.master = master;
 	spi_imx->dev = &pdev->dev;
+	spi_imx->slave_mode = slave_mode;
 
-	spi_imx->devtype_data = of_id ? of_id->data :
-		(struct spi_imx_devtype_data *)pdev->id_entry->driver_data;
+	spi_imx->devtype_data = devtype_data;
 
+	/* Get number of chip selects, either platform data or OF */
 	if (mxc_platform_info) {
 		master->num_chipselect = mxc_platform_info->num_chipselect;
-		master->cs_gpios = devm_kzalloc(&master->dev,
-			sizeof(int) * master->num_chipselect, GFP_KERNEL);
-		if (!master->cs_gpios)
-			return -ENOMEM;
+		if (mxc_platform_info->chipselect) {
+			master->cs_gpios = devm_kzalloc(&master->dev,
+				sizeof(int) * master->num_chipselect, GFP_KERNEL);
+			if (!master->cs_gpios)
+				return -ENOMEM;
+
+			for (i = 0; i < master->num_chipselect; i++)
+				master->cs_gpios[i] = mxc_platform_info->chipselect[i];
+		}
+	} else {
+		u32 num_cs;
 
-		for (i = 0; i < master->num_chipselect; i++)
-			master->cs_gpios[i] = mxc_platform_info->chipselect[i];
- 	}
+		if (!of_property_read_u32(np, "num-cs", &num_cs))
+			master->num_chipselect = num_cs;
+		/* If not preset, default value of 1 is used */
+	}
 
 	spi_imx->bitbang.chipselect = spi_imx_chipselect;
 	spi_imx->bitbang.setup_transfer = spi_imx_setupxfer;
@@ -1380,6 +1550,7 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx->bitbang.master->cleanup = spi_imx_cleanup;
 	spi_imx->bitbang.master->prepare_message = spi_imx_prepare_message;
 	spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message;
+	spi_imx->bitbang.master->slave_abort = spi_imx_slave_abort;
 	spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH \
 					     | SPI_NO_CS;
 	if (is_imx35_cspi(spi_imx) || is_imx51_ecspi(spi_imx) ||
@@ -1451,37 +1622,38 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx->devtype_data->intctrl(spi_imx, 0);
 
 	master->dev.of_node = pdev->dev.of_node;
+
+	/* Request GPIO CS lines, if any */
+	if (!spi_imx->slave_mode && master->cs_gpios) {
+		for (i = 0; i < master->num_chipselect; i++) {
+			if (!gpio_is_valid(master->cs_gpios[i]))
+				continue;
+
+			ret = devm_gpio_request(&pdev->dev,
+						master->cs_gpios[i],
+						DRIVER_NAME);
+			if (ret) {
+				dev_err(&pdev->dev, "Can't get CS GPIO %i\n",
+					master->cs_gpios[i]);
+				goto out_spi_bitbang;
+			}
+		}
+	}
+
 	ret = spi_bitbang_start(&spi_imx->bitbang);
 	if (ret) {
 		dev_err(&pdev->dev, "bitbang start failed with %d\n", ret);
 		goto out_clk_put;
 	}
 
-	if (!master->cs_gpios) {
-		dev_err(&pdev->dev, "No CS GPIOs available\n");
-		ret = -EINVAL;
-		goto out_clk_put;
-	}
-
-	for (i = 0; i < master->num_chipselect; i++) {
-		if (!gpio_is_valid(master->cs_gpios[i]))
-			continue;
-
-		ret = devm_gpio_request(&pdev->dev, master->cs_gpios[i],
-					DRIVER_NAME);
-		if (ret) {
-			dev_err(&pdev->dev, "Can't get CS GPIO %i\n",
-				master->cs_gpios[i]);
-			goto out_clk_put;
-		}
-	}
-
 	dev_info(&pdev->dev, "probed\n");
 
 	clk_disable(spi_imx->clk_ipg);
 	clk_disable(spi_imx->clk_per);
 	return ret;
 
+out_spi_bitbang:
+	spi_bitbang_stop(&spi_imx->bitbang);
 out_clk_put:
 	clk_disable_unprepare(spi_imx->clk_ipg);
 out_put_per:
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 5b0e9a3e83f6..3d216b950b41 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -44,6 +44,7 @@
 #include <linux/completion.h>
 #include <linux/gpio.h>
 #include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
 #include <linux/module.h>
 #include <linux/stmp_device.h>
 #include <linux/spi/spi.h>
@@ -442,6 +443,85 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 	return status;
 }
 
+static int mxs_spi_runtime_suspend(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct mxs_spi *spi = spi_master_get_devdata(master);
+	struct mxs_ssp *ssp = &spi->ssp;
+	int ret;
+
+	clk_disable_unprepare(ssp->clk);
+
+	ret = pinctrl_pm_select_idle_state(dev);
+	if (ret) {
+		int ret2 = clk_prepare_enable(ssp->clk);
+
+		if (ret2)
+			dev_warn(dev, "Failed to reenable clock after failing pinctrl request (pinctrl: %d, clk: %d)\n",
+				 ret, ret2);
+	}
+
+	return ret;
+}
+
+static int mxs_spi_runtime_resume(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	struct mxs_spi *spi = spi_master_get_devdata(master);
+	struct mxs_ssp *ssp = &spi->ssp;
+	int ret;
+
+	ret = pinctrl_pm_select_default_state(dev);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(ssp->clk);
+	if (ret)
+		pinctrl_pm_select_idle_state(dev);
+
+	return ret;
+}
+
+static int __maybe_unused mxs_spi_suspend(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	int ret;
+
+	ret = spi_master_suspend(master);
+	if (ret)
+		return ret;
+
+	if (!pm_runtime_suspended(dev))
+		return mxs_spi_runtime_suspend(dev);
+	else
+		return 0;
+}
+
+static int __maybe_unused mxs_spi_resume(struct device *dev)
+{
+	struct spi_master *master = dev_get_drvdata(dev);
+	int ret;
+
+	if (!pm_runtime_suspended(dev))
+		ret = mxs_spi_runtime_resume(dev);
+	else
+		ret = 0;
+	if (ret)
+		return ret;
+
+	ret = spi_master_resume(master);
+	if (ret < 0 && !pm_runtime_suspended(dev))
+		mxs_spi_runtime_suspend(dev);
+
+	return ret;
+}
+
+static const struct dev_pm_ops mxs_spi_pm = {
+	SET_RUNTIME_PM_OPS(mxs_spi_runtime_suspend,
+			   mxs_spi_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(mxs_spi_suspend, mxs_spi_resume)
+};
+
 static const struct of_device_id mxs_spi_dt_ids[] = {
 	{ .compatible = "fsl,imx23-spi", .data = (void *) IMX23_SSP, },
 	{ .compatible = "fsl,imx28-spi", .data = (void *) IMX28_SSP, },
@@ -493,12 +573,15 @@ static int mxs_spi_probe(struct platform_device *pdev)
 	if (!master)
 		return -ENOMEM;
 
+	platform_set_drvdata(pdev, master);
+
 	master->transfer_one_message = mxs_spi_transfer_one;
 	master->bits_per_word_mask = SPI_BPW_MASK(8);
 	master->mode_bits = SPI_CPOL | SPI_CPHA;
 	master->num_chipselect = 3;
 	master->dev.of_node = np;
 	master->flags = SPI_MASTER_HALF_DUPLEX;
+	master->auto_runtime_pm = true;
 
 	spi = spi_master_get_devdata(master);
 	ssp = &spi->ssp;
@@ -521,28 +604,41 @@ static int mxs_spi_probe(struct platform_device *pdev)
 		goto out_master_free;
 	}
 
-	ret = clk_prepare_enable(ssp->clk);
-	if (ret)
-		goto out_dma_release;
+	pm_runtime_enable(ssp->dev);
+	if (!pm_runtime_enabled(ssp->dev)) {
+		ret = mxs_spi_runtime_resume(ssp->dev);
+		if (ret < 0) {
+			dev_err(ssp->dev, "runtime resume failed\n");
+			goto out_dma_release;
+		}
+	}
+
+	ret = pm_runtime_get_sync(ssp->dev);
+	if (ret < 0) {
+		dev_err(ssp->dev, "runtime_get_sync failed\n");
+		goto out_pm_runtime_disable;
+	}
 
 	clk_set_rate(ssp->clk, clk_freq);
 
 	ret = stmp_reset_block(ssp->base);
 	if (ret)
-		goto out_disable_clk;
-
-	platform_set_drvdata(pdev, master);
+		goto out_pm_runtime_put;
 
 	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret) {
 		dev_err(&pdev->dev, "Cannot register SPI master, %d\n", ret);
-		goto out_disable_clk;
+		goto out_pm_runtime_put;
 	}
 
+	pm_runtime_put(ssp->dev);
+
 	return 0;
 
-out_disable_clk:
-	clk_disable_unprepare(ssp->clk);
+out_pm_runtime_put:
+	pm_runtime_put(ssp->dev);
+out_pm_runtime_disable:
+	pm_runtime_disable(ssp->dev);
 out_dma_release:
 	dma_release_channel(ssp->dmach);
 out_master_free:
@@ -560,7 +656,10 @@ static int mxs_spi_remove(struct platform_device *pdev)
 	spi = spi_master_get_devdata(master);
 	ssp = &spi->ssp;
 
-	clk_disable_unprepare(ssp->clk);
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		mxs_spi_runtime_suspend(&pdev->dev);
+
 	dma_release_channel(ssp->dmach);
 
 	return 0;
@@ -572,6 +671,7 @@ static struct platform_driver mxs_spi_driver = {
 	.driver	= {
 		.name	= DRIVER_NAME,
 		.of_match_table = mxs_spi_dt_ids,
+		.pm = &mxs_spi_pm,
 	},
 };
 
diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 4b6dd73b80da..8974bb340b3a 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -671,7 +671,6 @@ static int orion_spi_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"%pOF has no valid 'reg' property (%d)\n",
 				np, status);
-			status = 0;
 			continue;
 		}
 
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 2a10b3f94ff7..2ce875764ca6 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -1221,7 +1221,6 @@ static int rspi_probe(struct platform_device *pdev)
 	struct spi_master *master;
 	struct rspi_data *rspi;
 	int ret;
-	const struct of_device_id *of_id;
 	const struct rspi_plat_data *rspi_pd;
 	const struct spi_ops *ops;
 
@@ -1229,9 +1228,8 @@ static int rspi_probe(struct platform_device *pdev)
 	if (master == NULL)
 		return -ENOMEM;
 
-	of_id = of_match_device(rspi_of_match, &pdev->dev);
-	if (of_id) {
-		ops = of_id->data;
+	ops = of_device_get_match_data(&pdev->dev);
+	if (ops) {
 		ret = rspi_parse_dt(&pdev->dev, master);
 		if (ret)
 			goto error1;
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index b392cca8fa4f..de7df20f8712 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -752,7 +752,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 {
 	struct s3c64xx_spi_csinfo *cs = spi->controller_data;
 	struct s3c64xx_spi_driver_data *sdd;
-	struct s3c64xx_spi_info *sci;
 	int err;
 
 	sdd = spi_master_get_devdata(spi->master);
@@ -788,8 +787,6 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 		spi_set_ctldata(spi, cs);
 	}
 
-	sci = sdd->cntrlr_info;
-
 	pm_runtime_get_sync(&sdd->pdev->dev);
 
 	/* Check if we can provide the requested rate */
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c
index 0eb1e9583485..fcd261f98b9f 100644
--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -900,7 +900,7 @@ static int sh_msiof_transfer_one(struct spi_master *master,
 				break;
 			copy32 = copy_bswap32;
 		} else if (bits <= 16) {
-			if (l & 1)
+			if (l & 3)
 				break;
 			copy32 = copy_wswap32;
 		} else {
@@ -1021,6 +1021,8 @@ static const struct sh_msiof_chipdata rcar_gen3_data = {
 
 static const struct of_device_id sh_msiof_match[] = {
 	{ .compatible = "renesas,sh-mobile-msiof", .data = &sh_data },
+	{ .compatible = "renesas,msiof-r8a7743",   .data = &rcar_gen2_data },
+	{ .compatible = "renesas,msiof-r8a7745",   .data = &rcar_gen2_data },
 	{ .compatible = "renesas,msiof-r8a7790",   .data = &rcar_gen2_data },
 	{ .compatible = "renesas,msiof-r8a7791",   .data = &rcar_gen2_data },
 	{ .compatible = "renesas,msiof-r8a7792",   .data = &rcar_gen2_data },
@@ -1188,12 +1190,10 @@ free_tx_chan:
 static void sh_msiof_release_dma(struct sh_msiof_spi_priv *p)
 {
 	struct spi_master *master = p->master;
-	struct device *dev;
 
 	if (!master->dma_tx)
 		return;
 
-	dev = &p->pdev->dev;
 	dma_unmap_single(master->dma_rx->device->dev, p->rx_dma_addr,
 			 PAGE_SIZE, DMA_FROM_DEVICE);
 	dma_unmap_single(master->dma_tx->device->dev, p->tx_dma_addr,
@@ -1209,15 +1209,13 @@ static int sh_msiof_spi_probe(struct platform_device *pdev)
 	struct resource	*r;
 	struct spi_master *master;
 	const struct sh_msiof_chipdata *chipdata;
-	const struct of_device_id *of_id;
 	struct sh_msiof_spi_info *info;
 	struct sh_msiof_spi_priv *p;
 	int i;
 	int ret;
 
-	of_id = of_match_device(sh_msiof_match, &pdev->dev);
-	if (of_id) {
-		chipdata = of_id->data;
+	chipdata = of_device_get_match_data(&pdev->dev);
+	if (chipdata) {
 		info = sh_msiof_spi_parse_dt(&pdev->dev);
 	} else {
 		chipdata = (const void *)pdev->id_entry->driver_data;
diff --git a/drivers/spi/spi-sprd-adi.c b/drivers/spi/spi-sprd-adi.c
new file mode 100644
index 000000000000..5993bdbf79e4
--- /dev/null
+++ b/drivers/spi/spi-sprd-adi.c
@@ -0,0 +1,418 @@
+/*
+ * Copyright (C) 2017 Spreadtrum Communications Inc.
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+
+#include <linux/hwspinlock.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/sizes.h>
+
+/* Registers definitions for ADI controller */
+#define REG_ADI_CTRL0			0x4
+#define REG_ADI_CHN_PRIL		0x8
+#define REG_ADI_CHN_PRIH		0xc
+#define REG_ADI_INT_EN			0x10
+#define REG_ADI_INT_RAW			0x14
+#define REG_ADI_INT_MASK		0x18
+#define REG_ADI_INT_CLR			0x1c
+#define REG_ADI_GSSI_CFG0		0x20
+#define REG_ADI_GSSI_CFG1		0x24
+#define REG_ADI_RD_CMD			0x28
+#define REG_ADI_RD_DATA			0x2c
+#define REG_ADI_ARM_FIFO_STS		0x30
+#define REG_ADI_STS			0x34
+#define REG_ADI_EVT_FIFO_STS		0x38
+#define REG_ADI_ARM_CMD_STS		0x3c
+#define REG_ADI_CHN_EN			0x40
+#define REG_ADI_CHN_ADDR(id)		(0x44 + (id - 2) * 4)
+#define REG_ADI_CHN_EN1			0x20c
+
+/* Bits definitions for register REG_ADI_GSSI_CFG0 */
+#define BIT_CLK_ALL_ON			BIT(30)
+
+/* Bits definitions for register REG_ADI_RD_DATA */
+#define BIT_RD_CMD_BUSY			BIT(31)
+#define RD_ADDR_SHIFT			16
+#define RD_VALUE_MASK			GENMASK(15, 0)
+#define RD_ADDR_MASK			GENMASK(30, 16)
+
+/* Bits definitions for register REG_ADI_ARM_FIFO_STS */
+#define BIT_FIFO_FULL			BIT(11)
+#define BIT_FIFO_EMPTY			BIT(10)
+
+/*
+ * ADI slave devices include RTC, ADC, regulator, charger, thermal and so on.
+ * The slave devices address offset is always 0x8000 and size is 4K.
+ */
+#define ADI_SLAVE_ADDR_SIZE		SZ_4K
+#define ADI_SLAVE_OFFSET		0x8000
+
+/* Timeout (ms) for the trylock of hardware spinlocks */
+#define ADI_HWSPINLOCK_TIMEOUT		5000
+/*
+ * ADI controller has 50 channels including 2 software channels
+ * and 48 hardware channels.
+ */
+#define ADI_HW_CHNS			50
+
+#define ADI_FIFO_DRAIN_TIMEOUT		1000
+#define ADI_READ_TIMEOUT		2000
+#define REG_ADDR_LOW_MASK		GENMASK(11, 0)
+
+struct sprd_adi {
+	struct spi_controller	*ctlr;
+	struct device		*dev;
+	void __iomem		*base;
+	struct hwspinlock	*hwlock;
+	unsigned long		slave_vbase;
+	unsigned long		slave_pbase;
+};
+
+static int sprd_adi_check_paddr(struct sprd_adi *sadi, u32 paddr)
+{
+	if (paddr < sadi->slave_pbase || paddr >
+	    (sadi->slave_pbase + ADI_SLAVE_ADDR_SIZE)) {
+		dev_err(sadi->dev,
+			"slave physical address is incorrect, addr = 0x%x\n",
+			paddr);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static unsigned long sprd_adi_to_vaddr(struct sprd_adi *sadi, u32 paddr)
+{
+	return (paddr - sadi->slave_pbase + sadi->slave_vbase);
+}
+
+static int sprd_adi_drain_fifo(struct sprd_adi *sadi)
+{
+	u32 timeout = ADI_FIFO_DRAIN_TIMEOUT;
+	u32 sts;
+
+	do {
+		sts = readl_relaxed(sadi->base + REG_ADI_ARM_FIFO_STS);
+		if (sts & BIT_FIFO_EMPTY)
+			break;
+
+		cpu_relax();
+	} while (--timeout);
+
+	if (timeout == 0) {
+		dev_err(sadi->dev, "drain write fifo timeout\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int sprd_adi_fifo_is_full(struct sprd_adi *sadi)
+{
+	return readl_relaxed(sadi->base + REG_ADI_ARM_FIFO_STS) & BIT_FIFO_FULL;
+}
+
+static int sprd_adi_read(struct sprd_adi *sadi, u32 reg_paddr, u32 *read_val)
+{
+	int read_timeout = ADI_READ_TIMEOUT;
+	u32 val, rd_addr;
+
+	/*
+	 * Set the physical register address need to read into RD_CMD register,
+	 * then ADI controller will start to transfer automatically.
+	 */
+	writel_relaxed(reg_paddr, sadi->base + REG_ADI_RD_CMD);
+
+	/*
+	 * Wait read operation complete, the BIT_RD_CMD_BUSY will be set
+	 * simultaneously when writing read command to register, and the
+	 * BIT_RD_CMD_BUSY will be cleared after the read operation is
+	 * completed.
+	 */
+	do {
+		val = readl_relaxed(sadi->base + REG_ADI_RD_DATA);
+		if (!(val & BIT_RD_CMD_BUSY))
+			break;
+
+		cpu_relax();
+	} while (--read_timeout);
+
+	if (read_timeout == 0) {
+		dev_err(sadi->dev, "ADI read timeout\n");
+		return -EBUSY;
+	}
+
+	/*
+	 * The return value includes data and read register address, from bit 0
+	 * to bit 15 are data, and from bit 16 to bit 30 are read register
+	 * address. Then we can check the returned register address to validate
+	 * data.
+	 */
+	rd_addr = (val & RD_ADDR_MASK ) >> RD_ADDR_SHIFT;
+
+	if (rd_addr != (reg_paddr & REG_ADDR_LOW_MASK)) {
+		dev_err(sadi->dev, "read error, reg addr = 0x%x, val = 0x%x\n",
+			reg_paddr, val);
+		return -EIO;
+	}
+
+	*read_val = val & RD_VALUE_MASK;
+	return 0;
+}
+
+static int sprd_adi_write(struct sprd_adi *sadi, unsigned long reg, u32 val)
+{
+	u32 timeout = ADI_FIFO_DRAIN_TIMEOUT;
+	int ret;
+
+	ret = sprd_adi_drain_fifo(sadi);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * we should wait for write fifo is empty before writing data to PMIC
+	 * registers.
+	 */
+	do {
+		if (!sprd_adi_fifo_is_full(sadi)) {
+			writel_relaxed(val, (void __iomem *)reg);
+			break;
+		}
+
+		cpu_relax();
+	} while (--timeout);
+
+	if (timeout == 0) {
+		dev_err(sadi->dev, "write fifo is full\n");
+		return -EBUSY;
+	}
+
+	return 0;
+}
+
+static int sprd_adi_transfer_one(struct spi_controller *ctlr,
+				 struct spi_device *spi_dev,
+				 struct spi_transfer *t)
+{
+	struct sprd_adi *sadi = spi_controller_get_devdata(ctlr);
+	unsigned long flags, virt_reg;
+	u32 phy_reg, val;
+	int ret;
+
+	if (t->rx_buf) {
+		phy_reg = *(u32 *)t->rx_buf + sadi->slave_pbase;
+
+		ret = sprd_adi_check_paddr(sadi, phy_reg);
+		if (ret)
+			return ret;
+
+		ret = hwspin_lock_timeout_irqsave(sadi->hwlock,
+						  ADI_HWSPINLOCK_TIMEOUT,
+						  &flags);
+		if (ret) {
+			dev_err(sadi->dev, "get the hw lock failed\n");
+			return ret;
+		}
+
+		ret = sprd_adi_read(sadi, phy_reg, &val);
+		hwspin_unlock_irqrestore(sadi->hwlock, &flags);
+		if (ret)
+			return ret;
+
+		*(u32 *)t->rx_buf = val;
+	} else if (t->tx_buf) {
+		u32 *p = (u32 *)t->tx_buf;
+
+		/*
+		 * Get the physical register address need to write and convert
+		 * the physical address to virtual address. Since we need
+		 * virtual register address to write.
+		 */
+		phy_reg = *p++ + sadi->slave_pbase;
+		ret = sprd_adi_check_paddr(sadi, phy_reg);
+		if (ret)
+			return ret;
+
+		virt_reg = sprd_adi_to_vaddr(sadi, phy_reg);
+		val = *p;
+
+		ret = hwspin_lock_timeout_irqsave(sadi->hwlock,
+						  ADI_HWSPINLOCK_TIMEOUT,
+						  &flags);
+		if (ret) {
+			dev_err(sadi->dev, "get the hw lock failed\n");
+			return ret;
+		}
+
+		ret = sprd_adi_write(sadi, virt_reg, val);
+		hwspin_unlock_irqrestore(sadi->hwlock, &flags);
+		if (ret)
+			return ret;
+	} else {
+		dev_err(sadi->dev, "no buffer for transfer\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static void sprd_adi_hw_init(struct sprd_adi *sadi)
+{
+	struct device_node *np = sadi->dev->of_node;
+	int i, size, chn_cnt;
+	const __be32 *list;
+	u32 tmp;
+
+	/* Address bits select default 12 bits */
+	writel_relaxed(0, sadi->base + REG_ADI_CTRL0);
+
+	/* Set all channels as default priority */
+	writel_relaxed(0, sadi->base + REG_ADI_CHN_PRIL);
+	writel_relaxed(0, sadi->base + REG_ADI_CHN_PRIH);
+
+	/* Set clock auto gate mode */
+	tmp = readl_relaxed(sadi->base + REG_ADI_GSSI_CFG0);
+	tmp &= ~BIT_CLK_ALL_ON;
+	writel_relaxed(tmp, sadi->base + REG_ADI_GSSI_CFG0);
+
+	/* Set hardware channels setting */
+	list = of_get_property(np, "sprd,hw-channels", &size);
+	if (!list || !size) {
+		dev_info(sadi->dev, "no hw channels setting in node\n");
+		return;
+	}
+
+	chn_cnt = size / 8;
+	for (i = 0; i < chn_cnt; i++) {
+		u32 value;
+		u32 chn_id = be32_to_cpu(*list++);
+		u32 chn_config = be32_to_cpu(*list++);
+
+		/* Channel 0 and 1 are software channels */
+		if (chn_id < 2)
+			continue;
+
+		writel_relaxed(chn_config, sadi->base +
+			       REG_ADI_CHN_ADDR(chn_id));
+
+		if (chn_id < 32) {
+			value = readl_relaxed(sadi->base + REG_ADI_CHN_EN);
+			value |= BIT(chn_id);
+			writel_relaxed(value, sadi->base + REG_ADI_CHN_EN);
+		} else if (chn_id < ADI_HW_CHNS) {
+			value = readl_relaxed(sadi->base + REG_ADI_CHN_EN1);
+			value |= BIT(chn_id - 32);
+			writel_relaxed(value, sadi->base + REG_ADI_CHN_EN1);
+		}
+	}
+}
+
+static int sprd_adi_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct spi_controller *ctlr;
+	struct sprd_adi *sadi;
+	struct resource *res;
+	u32 num_chipselect;
+	int ret;
+
+	if (!np) {
+		dev_err(&pdev->dev, "can not find the adi bus node\n");
+		return -ENODEV;
+	}
+
+	pdev->id = of_alias_get_id(np, "spi");
+	num_chipselect = of_get_child_count(np);
+
+	ctlr = spi_alloc_master(&pdev->dev, sizeof(struct sprd_adi));
+	if (!ctlr)
+		return -ENOMEM;
+
+	dev_set_drvdata(&pdev->dev, ctlr);
+	sadi = spi_controller_get_devdata(ctlr);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	sadi->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(sadi->base)) {
+		ret = PTR_ERR(sadi->base);
+		goto put_ctlr;
+	}
+
+	sadi->slave_vbase = (unsigned long)sadi->base + ADI_SLAVE_OFFSET;
+	sadi->slave_pbase = res->start + ADI_SLAVE_OFFSET;
+	sadi->ctlr = ctlr;
+	sadi->dev = &pdev->dev;
+	ret = of_hwspin_lock_get_id(np, 0);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "can not get the hardware spinlock\n");
+		goto put_ctlr;
+	}
+
+	sadi->hwlock = hwspin_lock_request_specific(ret);
+	if (!sadi->hwlock) {
+		ret = -ENXIO;
+		goto put_ctlr;
+	}
+
+	sprd_adi_hw_init(sadi);
+
+	ctlr->dev.of_node = pdev->dev.of_node;
+	ctlr->bus_num = pdev->id;
+	ctlr->num_chipselect = num_chipselect;
+	ctlr->flags = SPI_MASTER_HALF_DUPLEX;
+	ctlr->bits_per_word_mask = 0;
+	ctlr->transfer_one = sprd_adi_transfer_one;
+
+	ret = devm_spi_register_controller(&pdev->dev, ctlr);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register SPI controller\n");
+		goto free_hwlock;
+	}
+
+	return 0;
+
+free_hwlock:
+	hwspin_lock_free(sadi->hwlock);
+put_ctlr:
+	spi_controller_put(ctlr);
+	return ret;
+}
+
+static int sprd_adi_remove(struct platform_device *pdev)
+{
+	struct spi_controller *ctlr = dev_get_drvdata(&pdev->dev);
+	struct sprd_adi *sadi = spi_controller_get_devdata(ctlr);
+
+	hwspin_lock_free(sadi->hwlock);
+	return 0;
+}
+
+static const struct of_device_id sprd_adi_of_match[] = {
+	{
+		.compatible = "sprd,sc9860-adi",
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, sprd_adi_of_match);
+
+static struct platform_driver sprd_adi_driver = {
+	.driver = {
+		.name = "sprd-adi",
+		.of_match_table = sprd_adi_of_match,
+	},
+	.probe = sprd_adi_probe,
+	.remove = sprd_adi_remove,
+};
+module_platform_driver(sprd_adi_driver);
+
+MODULE_DESCRIPTION("Spreadtrum ADI Controller Driver");
+MODULE_AUTHOR("Baolin Wang <Baolin.Wang@spreadtrum.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/spi/spi-stm32.c b/drivers/spi/spi-stm32.c
index 680cdf549506..ba9743fa2326 100644
--- a/drivers/spi/spi-stm32.c
+++ b/drivers/spi/spi-stm32.c
@@ -263,8 +263,8 @@ static int stm32_spi_prepare_mbr(struct stm32_spi *spi, u32 speed_hz)
 	 * no need to check it there.
 	 * However, we need to ensure the following calculations.
 	 */
-	if ((div < SPI_MBR_DIV_MIN) &&
-	    (div > SPI_MBR_DIV_MAX))
+	if (div < SPI_MBR_DIV_MIN ||
+	    div > SPI_MBR_DIV_MAX)
 		return -EINVAL;
 
 	/* Determine the first power of 2 greater than or equal to div */
diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 44550182a4a3..a76acedd7e2f 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -50,7 +50,7 @@
 #define SPI_IDLE_SDA_PULL_LOW			(2 << 18)
 #define SPI_IDLE_SDA_PULL_HIGH			(3 << 18)
 #define SPI_IDLE_SDA_MASK			(3 << 18)
-#define SPI_CS_SS_VAL				(1 << 20)
+#define SPI_CS_SW_VAL				(1 << 20)
 #define SPI_CS_SW_HW				(1 << 21)
 /* SPI_CS_POL_INACTIVE bits are default high */
 						/* n from 0 to 3 */
@@ -705,9 +705,9 @@ static u32 tegra_spi_setup_transfer_one(struct spi_device *spi,
 
 		command1 |= SPI_CS_SW_HW;
 		if (spi->mode & SPI_CS_HIGH)
-			command1 |= SPI_CS_SS_VAL;
+			command1 |= SPI_CS_SW_VAL;
 		else
-			command1 &= ~SPI_CS_SS_VAL;
+			command1 &= ~SPI_CS_SW_VAL;
 
 		tegra_spi_writel(tspi, 0, SPI_COMMAND2);
 	} else {
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 6e65524cbfd9..b33a727a0158 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -45,7 +45,6 @@
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/spi.h>
-#define SPI_DYN_FIRST_BUS_NUM 0
 
 static DEFINE_IDR(spi_master_idr);
 
@@ -2086,7 +2085,7 @@ int spi_register_controller(struct spi_controller *ctlr)
 	struct device		*dev = ctlr->dev.parent;
 	struct boardinfo	*bi;
 	int			status = -ENODEV;
-	int			id;
+	int			id, first_dynamic;
 
 	if (!dev)
 		return -ENODEV;
@@ -2116,9 +2115,15 @@ int spi_register_controller(struct spi_controller *ctlr)
 		}
 	}
 	if (ctlr->bus_num < 0) {
+		first_dynamic = of_alias_get_highest_id("spi");
+		if (first_dynamic < 0)
+			first_dynamic = 0;
+		else
+			first_dynamic++;
+
 		mutex_lock(&board_lock);
-		id = idr_alloc(&spi_master_idr, ctlr, SPI_DYN_FIRST_BUS_NUM, 0,
-			       GFP_KERNEL);
+		id = idr_alloc(&spi_master_idr, ctlr, first_dynamic,
+			       0, GFP_KERNEL);
 		mutex_unlock(&board_lock);
 		if (WARN(id < 0, "couldn't get idr"))
 			return id;
@@ -2195,7 +2200,7 @@ static void devm_spi_unregister(struct device *dev, void *res)
  * Context: can sleep
  *
  * Register a SPI device as with spi_register_controller() which will
- * automatically be unregister
+ * automatically be unregistered and freed.
  *
  * Return: zero on success, else a negative error code.
  */
@@ -2236,15 +2241,18 @@ static int __unregister(struct device *dev, void *null)
  * only ones directly touching chip registers.
  *
  * This must be called from context that can sleep.
+ *
+ * Note that this function also drops a reference to the controller.
  */
 void spi_unregister_controller(struct spi_controller *ctlr)
 {
 	struct spi_controller *found;
+	int id = ctlr->bus_num;
 	int dummy;
 
 	/* First make sure that this controller was ever added */
 	mutex_lock(&board_lock);
-	found = idr_find(&spi_master_idr, ctlr->bus_num);
+	found = idr_find(&spi_master_idr, id);
 	mutex_unlock(&board_lock);
 	if (found != ctlr) {
 		dev_dbg(&ctlr->dev,
@@ -2264,7 +2272,7 @@ void spi_unregister_controller(struct spi_controller *ctlr)
 	device_unregister(&ctlr->dev);
 	/* free bus id */
 	mutex_lock(&board_lock);
-	idr_remove(&spi_master_idr, ctlr->bus_num);
+	idr_remove(&spi_master_idr, id);
 	mutex_unlock(&board_lock);
 }
 EXPORT_SYMBOL_GPL(spi_unregister_controller);
diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 64a09681cee0..142d33df040f 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # core
 ssb-y					+= main.o scan.o
 ssb-$(CONFIG_SSB_EMBEDDED)		+= embedded.o
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index c2f5d3969c8b..ef9ac8efcab4 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_PRIVATE_H_
 #define LINUX_SSB_PRIVATE_H_
 
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 8951c37d8d80..6e536020029a 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for staging directory
 
 obj-y				+= media/
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO
index 5f14247392bf..687e0eac85bf 100644
--- a/drivers/staging/android/TODO
+++ b/drivers/staging/android/TODO
@@ -1,5 +1,4 @@
 TODO:
-	- checkpatch.pl cleanups
 	- sparse fixes
 	- rename files to be not so "generic"
 	- add proper arch dependencies as needed
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 6ba270e0494d..0f695df14c9d 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -294,19 +294,9 @@ static int ashmem_release(struct inode *ignored, struct file *file)
 	return 0;
 }
 
-/**
- * ashmem_read() - Reads a set of bytes from an Ashmem-enabled file
- * @file:	   The associated backing file.
- * @buf:	   The buffer of data being written to
- * @len:	   The number of bytes being read
- * @pos:	   The position of the first byte to read.
- *
- * Return: 0 if successful, or another return code if not.
- */
-static ssize_t ashmem_read(struct file *file, char __user *buf,
-			   size_t len, loff_t *pos)
+static ssize_t ashmem_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 {
-	struct ashmem_area *asma = file->private_data;
+	struct ashmem_area *asma = iocb->ki_filp->private_data;
 	int ret = 0;
 
 	mutex_lock(&ashmem_mutex);
@@ -320,20 +310,17 @@ static ssize_t ashmem_read(struct file *file, char __user *buf,
 		goto out_unlock;
 	}
 
-	mutex_unlock(&ashmem_mutex);
-
 	/*
 	 * asma and asma->file are used outside the lock here.  We assume
 	 * once asma->file is set it will never be changed, and will not
 	 * be destroyed until all references to the file are dropped and
 	 * ashmem_release is called.
 	 */
-	ret = __vfs_read(asma->file, buf, len, pos);
-	if (ret >= 0)
-		/** Update backing file pos, since f_ops->read() doesn't */
-		asma->file->f_pos = *pos;
-	return ret;
-
+	mutex_unlock(&ashmem_mutex);
+	ret = vfs_iter_read(asma->file, iter, &iocb->ki_pos, 0);
+	mutex_lock(&ashmem_mutex);
+	if (ret > 0)
+		asma->file->f_pos = iocb->ki_pos;
 out_unlock:
 	mutex_unlock(&ashmem_mutex);
 	return ret;
@@ -834,7 +821,7 @@ static const struct file_operations ashmem_fops = {
 	.owner = THIS_MODULE,
 	.open = ashmem_open,
 	.release = ashmem_release,
-	.read = ashmem_read,
+	.read_iter = ashmem_read_iter,
 	.llseek = ashmem_llseek,
 	.mmap = ashmem_mmap,
 	.unlocked_ioctl = ashmem_ioctl,
diff --git a/drivers/staging/android/ion/Makefile b/drivers/staging/android/ion/Makefile
index eb7eeed6ae40..bb30bf8774a0 100644
--- a/drivers/staging/android/ion/Makefile
+++ b/drivers/staging/android/ion/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_ION) +=	ion.o ion-ioctl.o ion_heap.o
 obj-$(CONFIG_ION_SYSTEM_HEAP) += ion_system_heap.o ion_page_pool.o
 obj-$(CONFIG_ION_CARVEOUT_HEAP) += ion_carveout_heap.o
diff --git a/drivers/staging/android/ion/ion-ioctl.c b/drivers/staging/android/ion/ion-ioctl.c
index d9f8b1424da1..c78989351f9c 100644
--- a/drivers/staging/android/ion/ion-ioctl.c
+++ b/drivers/staging/android/ion/ion-ioctl.c
@@ -27,19 +27,18 @@ union ion_ioctl_arg {
 
 static int validate_ioctl_arg(unsigned int cmd, union ion_ioctl_arg *arg)
 {
-	int ret = 0;
-
 	switch (cmd) {
 	case ION_IOC_HEAP_QUERY:
-		ret = arg->query.reserved0 != 0;
-		ret |= arg->query.reserved1 != 0;
-		ret |= arg->query.reserved2 != 0;
+		if (arg->query.reserved0 ||
+		    arg->query.reserved1 ||
+		    arg->query.reserved2)
+			return -EINVAL;
 		break;
 	default:
 		break;
 	}
 
-	return ret ? -EINVAL : 0;
+	return 0;
 }
 
 /* fix up the cases where the ioctl direction bits are incorrect */
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index 93e2c90fa77d..a7d9b0e98572 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -81,7 +81,6 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
 					    unsigned long flags)
 {
 	struct ion_buffer *buffer;
-	struct sg_table *table;
 	int ret;
 
 	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
@@ -109,7 +108,6 @@ static struct ion_buffer *ion_buffer_create(struct ion_heap *heap,
 		goto err1;
 	}
 
-	table = buffer->sg_table;
 	buffer->dev = dev;
 	buffer->size = len;
 
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index 621e5f7ceacb..f5f9cd63f8e9 100644
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -86,6 +86,7 @@ struct ion_buffer {
 	struct sg_table *sg_table;
 	struct list_head attachments;
 };
+
 void ion_buffer_destroy(struct ion_buffer *buffer);
 
 /**
@@ -299,7 +300,6 @@ size_t ion_heap_freelist_shrink(struct ion_heap *heap,
  */
 size_t ion_heap_freelist_size(struct ion_heap *heap);
 
-
 /**
  * functions for creating and destroying a heap pool -- allows you
  * to keep a pool of pre allocated memory to use from your heap.  Keeping
diff --git a/drivers/staging/board/board.h b/drivers/staging/board/board.h
index 42ed12513220..5609daf4d869 100644
--- a/drivers/staging/board/board.h
+++ b/drivers/staging/board/board.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BOARD_H__
 #define __BOARD_H__
 
diff --git a/drivers/staging/board/kzm9d.c b/drivers/staging/board/kzm9d.c
index 05a6d434d307..d449a837414e 100644
--- a/drivers/staging/board/kzm9d.c
+++ b/drivers/staging/board/kzm9d.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Staging board support for KZM9D. Enable not-yet-DT-capable devices here. */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/ccree/cc_hal.h b/drivers/staging/ccree/cc_hal.h
deleted file mode 100644
index eecc866dfc74..000000000000
--- a/drivers/staging/ccree/cc_hal.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright (C) 2012-2017 ARM Limited or its affiliates.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-/* pseudo cc_hal.h for cc7x_perf_test_driver (to be able to include code from
- * CC drivers).
- */
-
-#ifndef __CC_HAL_H__
-#define __CC_HAL_H__
-
-#include <linux/io.h>
-
-#define READ_REGISTER(_addr) ioread32((_addr))
-#define WRITE_REGISTER(_addr, _data)  iowrite32((_data), (_addr))
-
-#define CC_HAL_WRITE_REGISTER(offset, val) \
-	WRITE_REGISTER(cc_base + (offset), val)
-#define CC_HAL_READ_REGISTER(offset) READ_REGISTER(cc_base + (offset))
-
-#endif
diff --git a/drivers/staging/ccree/cc_lli_defs.h b/drivers/staging/ccree/cc_lli_defs.h
index 851d3907167e..a9c417b07b04 100644
--- a/drivers/staging/ccree/cc_lli_defs.h
+++ b/drivers/staging/ccree/cc_lli_defs.h
@@ -59,7 +59,7 @@ static inline void cc_lli_set_addr(u32 *lli_p, dma_addr_t addr)
 	lli_p[LLI_WORD0_OFFSET] = (addr & U32_MAX);
 #ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT
 	lli_p[LLI_WORD1_OFFSET] &= ~LLI_HADDR_MASK;
-	lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_HADDR_MASK, (addr >> 16));
+	lli_p[LLI_WORD1_OFFSET] |= FIELD_PREP(LLI_HADDR_MASK, (addr >> 32));
 #endif /* CONFIG_ARCH_DMA_ADDR_T_64BIT */
 }
 
diff --git a/drivers/staging/ccree/cc_regs.h b/drivers/staging/ccree/cc_regs.h
deleted file mode 100644
index 4a893a6ba6ef..000000000000
--- a/drivers/staging/ccree/cc_regs.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2012-2017 ARM Limited or its affiliates.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-/*!
- * @file
- * @brief This file contains macro definitions for accessing ARM TrustZone
- *        CryptoCell register space.
- */
-
-#ifndef _CC_REGS_H_
-#define _CC_REGS_H_
-
-#include <linux/bitfield.h>
-
-#define AXIM_MON_BASE_OFFSET CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_COMP)
-#define AXIM_MON_COMP_VALUE GENMASK(DX_AXIM_MON_COMP_VALUE_BIT_SIZE + \
-		DX_AXIM_MON_COMP_VALUE_BIT_SHIFT, \
-		DX_AXIM_MON_COMP_VALUE_BIT_SHIFT)
-
-#define AXIM_MON_BASE_OFFSET CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_COMP)
-#define AXIM_MON_COMP_VALUE GENMASK(DX_AXIM_MON_COMP_VALUE_BIT_SIZE + \
-		DX_AXIM_MON_COMP_VALUE_BIT_SHIFT, \
-		DX_AXIM_MON_COMP_VALUE_BIT_SHIFT)
-
-/* Register Offset macro */
-#define CC_REG_OFFSET(unit_name, reg_name)               \
-	(DX_BASE_ ## unit_name + DX_ ## reg_name ## _REG_OFFSET)
-
-#endif /*_CC_REGS_H_*/
diff --git a/drivers/staging/ccree/dx_reg_base_host.h b/drivers/staging/ccree/dx_reg_base_host.h
deleted file mode 100644
index 47bbadbcd1df..000000000000
--- a/drivers/staging/ccree/dx_reg_base_host.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2012-2017 ARM Limited or its affiliates.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef __DX_REG_BASE_HOST_H__
-#define __DX_REG_BASE_HOST_H__
-
-#define DX_BASE_CC 0x80000000
-#define DX_BASE_HOST_RGF 0x0UL
-#define DX_BASE_CRY_KERNEL     0x0UL
-#define DX_BASE_ROM     0x40000000
-
-#endif /*__DX_REG_BASE_HOST_H__*/
diff --git a/drivers/staging/ccree/ssi_aead.c b/drivers/staging/ccree/ssi_aead.c
index 5abe6b24ff8c..ba0954e4d2e5 100644
--- a/drivers/staging/ccree/ssi_aead.c
+++ b/drivers/staging/ccree/ssi_aead.c
@@ -92,18 +92,17 @@ static inline bool valid_assoclen(struct aead_request *req)
 
 static void ssi_aead_exit(struct crypto_aead *tfm)
 {
-	struct device *dev = NULL;
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("Clearing context @%p for %s\n",
-		      crypto_aead_ctx(tfm), crypto_tfm_alg_name(&tfm->base));
+	dev_dbg(dev, "Clearing context @%p for %s\n", crypto_aead_ctx(tfm),
+		crypto_tfm_alg_name(&tfm->base));
 
-	dev = &ctx->drvdata->plat_dev->dev;
 	/* Unmap enckey buffer */
 	if (ctx->enckey) {
 		dma_free_coherent(dev, AES_MAX_KEY_SIZE, ctx->enckey, ctx->enckey_dma_addr);
-		SSI_LOG_DEBUG("Freed enckey DMA buffer enckey_dma_addr=%pad\n",
-			      ctx->enckey_dma_addr);
+		dev_dbg(dev, "Freed enckey DMA buffer enckey_dma_addr=%pad\n",
+			&ctx->enckey_dma_addr);
 		ctx->enckey_dma_addr = 0;
 		ctx->enckey = NULL;
 	}
@@ -116,8 +115,8 @@ static void ssi_aead_exit(struct crypto_aead *tfm)
 					  xcbc->xcbc_keys,
 					  xcbc->xcbc_keys_dma_addr);
 		}
-		SSI_LOG_DEBUG("Freed xcbc_keys DMA buffer xcbc_keys_dma_addr=%pad\n",
-			      xcbc->xcbc_keys_dma_addr);
+		dev_dbg(dev, "Freed xcbc_keys DMA buffer xcbc_keys_dma_addr=%pad\n",
+			&xcbc->xcbc_keys_dma_addr);
 		xcbc->xcbc_keys_dma_addr = 0;
 		xcbc->xcbc_keys = NULL;
 	} else if (ctx->auth_mode != DRV_HASH_NULL) { /* HMAC auth. */
@@ -127,8 +126,8 @@ static void ssi_aead_exit(struct crypto_aead *tfm)
 			dma_free_coherent(dev, 2 * MAX_HMAC_DIGEST_SIZE,
 					  hmac->ipad_opad,
 					  hmac->ipad_opad_dma_addr);
-			SSI_LOG_DEBUG("Freed ipad_opad DMA buffer ipad_opad_dma_addr=%pad\n",
-				      hmac->ipad_opad_dma_addr);
+			dev_dbg(dev, "Freed ipad_opad DMA buffer ipad_opad_dma_addr=%pad\n",
+				&hmac->ipad_opad_dma_addr);
 			hmac->ipad_opad_dma_addr = 0;
 			hmac->ipad_opad = NULL;
 		}
@@ -136,8 +135,8 @@ static void ssi_aead_exit(struct crypto_aead *tfm)
 			dma_free_coherent(dev, MAX_HMAC_BLOCK_SIZE,
 					  hmac->padded_authkey,
 					  hmac->padded_authkey_dma_addr);
-			SSI_LOG_DEBUG("Freed padded_authkey DMA buffer padded_authkey_dma_addr=%pad\n",
-				      hmac->padded_authkey_dma_addr);
+			dev_dbg(dev, "Freed padded_authkey DMA buffer padded_authkey_dma_addr=%pad\n",
+				&hmac->padded_authkey_dma_addr);
 			hmac->padded_authkey_dma_addr = 0;
 			hmac->padded_authkey = NULL;
 		}
@@ -146,29 +145,31 @@ static void ssi_aead_exit(struct crypto_aead *tfm)
 
 static int ssi_aead_init(struct crypto_aead *tfm)
 {
-	struct device *dev;
 	struct aead_alg *alg = crypto_aead_alg(tfm);
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
 	struct ssi_crypto_alg *ssi_alg =
 			container_of(alg, struct ssi_crypto_alg, aead_alg);
-	SSI_LOG_DEBUG("Initializing context @%p for %s\n", ctx, crypto_tfm_alg_name(&tfm->base));
+	struct device *dev = drvdata_to_dev(ssi_alg->drvdata);
+
+	dev_dbg(dev, "Initializing context @%p for %s\n", ctx,
+		crypto_tfm_alg_name(&tfm->base));
 
 	/* Initialize modes in instance */
 	ctx->cipher_mode = ssi_alg->cipher_mode;
 	ctx->flow_mode = ssi_alg->flow_mode;
 	ctx->auth_mode = ssi_alg->auth_mode;
 	ctx->drvdata = ssi_alg->drvdata;
-	dev = &ctx->drvdata->plat_dev->dev;
 	crypto_aead_set_reqsize(tfm, sizeof(struct aead_req_ctx));
 
 	/* Allocate key buffer, cache line aligned */
 	ctx->enckey = dma_alloc_coherent(dev, AES_MAX_KEY_SIZE,
 					 &ctx->enckey_dma_addr, GFP_KERNEL);
 	if (!ctx->enckey) {
-		SSI_LOG_ERR("Failed allocating key buffer\n");
+		dev_err(dev, "Failed allocating key buffer\n");
 		goto init_failed;
 	}
-	SSI_LOG_DEBUG("Allocated enckey buffer in context ctx->enckey=@%p\n", ctx->enckey);
+	dev_dbg(dev, "Allocated enckey buffer in context ctx->enckey=@%p\n",
+		ctx->enckey);
 
 	/* Set default authlen value */
 
@@ -182,7 +183,7 @@ static int ssi_aead_init(struct crypto_aead *tfm)
 						     &xcbc->xcbc_keys_dma_addr,
 						     GFP_KERNEL);
 		if (!xcbc->xcbc_keys) {
-			SSI_LOG_ERR("Failed allocating buffer for XCBC keys\n");
+			dev_err(dev, "Failed allocating buffer for XCBC keys\n");
 			goto init_failed;
 		}
 	} else if (ctx->auth_mode != DRV_HASH_NULL) { /* HMAC authentication */
@@ -196,12 +197,12 @@ static int ssi_aead_init(struct crypto_aead *tfm)
 						     GFP_KERNEL);
 
 		if (!hmac->ipad_opad) {
-			SSI_LOG_ERR("Failed allocating IPAD/OPAD buffer\n");
+			dev_err(dev, "Failed allocating IPAD/OPAD buffer\n");
 			goto init_failed;
 		}
 
-		SSI_LOG_DEBUG("Allocated authkey buffer in context ctx->authkey=@%p\n",
-			      hmac->ipad_opad);
+		dev_dbg(dev, "Allocated authkey buffer in context ctx->authkey=@%p\n",
+			hmac->ipad_opad);
 
 		hmac->padded_authkey = dma_alloc_coherent(dev,
 							  MAX_HMAC_BLOCK_SIZE,
@@ -209,7 +210,7 @@ static int ssi_aead_init(struct crypto_aead *tfm)
 							  GFP_KERNEL);
 
 		if (!hmac->padded_authkey) {
-			SSI_LOG_ERR("failed to allocate padded_authkey\n");
+			dev_err(dev, "failed to allocate padded_authkey\n");
 			goto init_failed;
 		}
 	} else {
@@ -240,8 +241,7 @@ static void ssi_aead_complete(struct device *dev, void *ssi_req, void __iomem *c
 	if (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) {
 		if (memcmp(areq_ctx->mac_buf, areq_ctx->icv_virt_addr,
 			   ctx->authsize) != 0) {
-			SSI_LOG_DEBUG("Payload authentication failure, "
-				"(auth-size=%d, cipher=%d).\n",
+			dev_dbg(dev, "Payload authentication failure, (auth-size=%d, cipher=%d)\n",
 				ctx->authsize, ctx->cipher_mode);
 			/* In case of payload authentication failure, MUST NOT
 			 * revealed the decrypted message --> zero its memory.
@@ -252,8 +252,11 @@ static void ssi_aead_complete(struct device *dev, void *ssi_req, void __iomem *c
 	} else { /*ENCRYPT*/
 		if (unlikely(areq_ctx->is_icv_fragmented))
 			ssi_buffer_mgr_copy_scatterlist_portion(
-				areq_ctx->mac_buf, areq_ctx->dst_sgl, areq->cryptlen + areq_ctx->dst_offset,
-				areq->cryptlen + areq_ctx->dst_offset + ctx->authsize, SSI_SG_FROM_BUF);
+				dev, areq_ctx->mac_buf, areq_ctx->dst_sgl,
+				areq->cryptlen + areq_ctx->dst_offset,
+				(areq->cryptlen + areq_ctx->dst_offset +
+				 ctx->authsize),
+				SSI_SG_FROM_BUF);
 
 		/* If an IV was generated, copy it back to the user provided buffer. */
 		if (areq_ctx->backup_giv) {
@@ -377,8 +380,10 @@ static int hmac_setkey(struct cc_hw_desc *desc, struct ssi_aead_ctx *ctx)
 
 static int validate_keys_sizes(struct ssi_aead_ctx *ctx)
 {
-	SSI_LOG_DEBUG("enc_keylen=%u  authkeylen=%u\n",
-		      ctx->enc_keylen, ctx->auth_keylen);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+	dev_dbg(dev, "enc_keylen=%u  authkeylen=%u\n",
+		ctx->enc_keylen, ctx->auth_keylen);
 
 	switch (ctx->auth_mode) {
 	case DRV_HASH_SHA1:
@@ -395,22 +400,22 @@ static int validate_keys_sizes(struct ssi_aead_ctx *ctx)
 			return -EINVAL;
 		break;
 	default:
-		SSI_LOG_ERR("Invalid auth_mode=%d\n", ctx->auth_mode);
+		dev_err(dev, "Invalid auth_mode=%d\n", ctx->auth_mode);
 		return -EINVAL;
 	}
 	/* Check cipher key size */
 	if (unlikely(ctx->flow_mode == S_DIN_to_DES)) {
 		if (ctx->enc_keylen != DES3_EDE_KEY_SIZE) {
-			SSI_LOG_ERR("Invalid cipher(3DES) key size: %u\n",
-				    ctx->enc_keylen);
+			dev_err(dev, "Invalid cipher(3DES) key size: %u\n",
+				ctx->enc_keylen);
 			return -EINVAL;
 		}
 	} else { /* Default assumed to be AES ciphers */
 		if ((ctx->enc_keylen != AES_KEYSIZE_128) &&
 		    (ctx->enc_keylen != AES_KEYSIZE_192) &&
 		    (ctx->enc_keylen != AES_KEYSIZE_256)) {
-			SSI_LOG_ERR("Invalid cipher(AES) key size: %u\n",
-				    ctx->enc_keylen);
+			dev_err(dev, "Invalid cipher(AES) key size: %u\n",
+				ctx->enc_keylen);
 			return -EINVAL;
 		}
 	}
@@ -426,7 +431,7 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, unsigned int keyl
 {
 	dma_addr_t key_dma_addr = 0;
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	u32 larval_addr = ssi_ahash_get_larval_digest_sram_addr(
 					ctx->drvdata, ctx->auth_mode);
 	struct ssi_crypto_req ssi_req = {};
@@ -455,8 +460,8 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, unsigned int keyl
 	if (likely(keylen != 0)) {
 		key_dma_addr = dma_map_single(dev, (void *)key, keylen, DMA_TO_DEVICE);
 		if (unlikely(dma_mapping_error(dev, key_dma_addr))) {
-			SSI_LOG_ERR("Mapping key va=0x%p len=%u for"
-				   " DMA failed\n", key, keylen);
+			dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
+				key, keylen);
 			return -ENOMEM;
 		}
 		if (keylen > blocksize) {
@@ -534,7 +539,7 @@ ssi_get_plain_hmac_key(struct crypto_aead *tfm, const u8 *key, unsigned int keyl
 
 	rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
 	if (unlikely(rc != 0))
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 
 	if (likely(key_dma_addr != 0))
 		dma_unmap_single(dev, key_dma_addr, keylen, DMA_TO_DEVICE);
@@ -551,10 +556,10 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 	struct crypto_authenc_key_param *param;
 	struct cc_hw_desc desc[MAX_AEAD_SETKEY_SEQ];
 	int seq_len = 0, rc = -EINVAL;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("Setting key in context @%p for %s. key=%p keylen=%u\n",
-		      ctx, crypto_tfm_alg_name(crypto_aead_tfm(tfm)),
-		      key, keylen);
+	dev_dbg(dev, "Setting key in context @%p for %s. key=%p keylen=%u\n",
+		ctx, crypto_tfm_alg_name(crypto_aead_tfm(tfm)), key, keylen);
 
 	/* STAT_PHASE_0: Init and sanity checks */
 
@@ -622,7 +627,7 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 	case DRV_HASH_NULL: /* non-authenc modes, e.g., CCM */
 		break; /* No auth. key setup */
 	default:
-		SSI_LOG_ERR("Unsupported authenc (%d)\n", ctx->auth_mode);
+		dev_err(dev, "Unsupported authenc (%d)\n", ctx->auth_mode);
 		rc = -ENOTSUPP;
 		goto badkey;
 	}
@@ -632,7 +637,7 @@ ssi_aead_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 	if (seq_len > 0) { /* For CCM there is no sequence to setup the key */
 		rc = send_request(ctx->drvdata, &ssi_req, desc, seq_len, 0);
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			goto setkey_error;
 		}
 	}
@@ -651,7 +656,6 @@ setkey_error:
 static int ssi_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 {
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
-	int rc = 0;
 
 	if (keylen < 3)
 		return -EINVAL;
@@ -659,9 +663,7 @@ static int ssi_rfc4309_ccm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
 	keylen -= 3;
 	memcpy(ctx->ctr_nonce, key + keylen, 3);
 
-	rc = ssi_aead_setkey(tfm, key, keylen);
-
-	return rc;
+	return ssi_aead_setkey(tfm, key, keylen);
 }
 #endif /*SSI_CC_HAS_AES_CCM*/
 
@@ -670,6 +672,7 @@ static int ssi_aead_setauthsize(
 	unsigned int authsize)
 {
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(authenc);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	/* Unsupported auth. sizes */
 	if ((authsize == 0) ||
@@ -678,7 +681,7 @@ static int ssi_aead_setauthsize(
 	}
 
 	ctx->authsize = authsize;
-	SSI_LOG_DEBUG("authlen=%d\n", ctx->authsize);
+	dev_dbg(dev, "authlen=%d\n", ctx->authsize);
 
 	return 0;
 }
@@ -731,10 +734,11 @@ ssi_aead_create_assoc_desc(
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(areq);
 	enum ssi_req_dma_buf_type assoc_dma_type = areq_ctx->assoc_buff_type;
 	unsigned int idx = *seq_size;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	switch (assoc_dma_type) {
 	case SSI_DMA_BUF_DLLI:
-		SSI_LOG_DEBUG("ASSOC buffer type DLLI\n");
+		dev_dbg(dev, "ASSOC buffer type DLLI\n");
 		hw_desc_init(&desc[idx]);
 		set_din_type(&desc[idx], DMA_DLLI, sg_dma_address(areq->src),
 			     areq->assoclen, NS_BIT); set_flow_mode(&desc[idx],
@@ -744,7 +748,7 @@ ssi_aead_create_assoc_desc(
 			set_din_not_last_indication(&desc[idx]);
 		break;
 	case SSI_DMA_BUF_MLLI:
-		SSI_LOG_DEBUG("ASSOC buffer type MLLI\n");
+		dev_dbg(dev, "ASSOC buffer type MLLI\n");
 		hw_desc_init(&desc[idx]);
 		set_din_type(&desc[idx], DMA_MLLI, areq_ctx->assoc.sram_addr,
 			     areq_ctx->assoc.mlli_nents, NS_BIT);
@@ -755,7 +759,7 @@ ssi_aead_create_assoc_desc(
 		break;
 	case SSI_DMA_BUF_NULL:
 	default:
-		SSI_LOG_ERR("Invalid ASSOC buffer type\n");
+		dev_err(dev, "Invalid ASSOC buffer type\n");
 	}
 
 	*seq_size = (++idx);
@@ -772,6 +776,9 @@ ssi_aead_process_authenc_data_desc(
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(areq);
 	enum ssi_req_dma_buf_type data_dma_type = areq_ctx->data_buff_type;
 	unsigned int idx = *seq_size;
+	struct crypto_aead *tfm = crypto_aead_reqtfm(areq);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	switch (data_dma_type) {
 	case SSI_DMA_BUF_DLLI:
@@ -783,7 +790,7 @@ ssi_aead_process_authenc_data_desc(
 		unsigned int offset =
 			(direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ?
 			areq_ctx->dst_offset : areq_ctx->src_offset;
-		SSI_LOG_DEBUG("AUTHENC: SRC/DST buffer type DLLI\n");
+		dev_dbg(dev, "AUTHENC: SRC/DST buffer type DLLI\n");
 		hw_desc_init(&desc[idx]);
 		set_din_type(&desc[idx], DMA_DLLI,
 			     (sg_dma_address(cipher) + offset),
@@ -810,7 +817,7 @@ ssi_aead_process_authenc_data_desc(
 			}
 		}
 
-		SSI_LOG_DEBUG("AUTHENC: SRC/DST buffer type MLLI\n");
+		dev_dbg(dev, "AUTHENC: SRC/DST buffer type MLLI\n");
 		hw_desc_init(&desc[idx]);
 		set_din_type(&desc[idx], DMA_MLLI, mlli_addr, mlli_nents,
 			     NS_BIT);
@@ -819,7 +826,7 @@ ssi_aead_process_authenc_data_desc(
 	}
 	case SSI_DMA_BUF_NULL:
 	default:
-		SSI_LOG_ERR("AUTHENC: Invalid SRC/DST buffer type\n");
+		dev_err(dev, "AUTHENC: Invalid SRC/DST buffer type\n");
 	}
 
 	*seq_size = (++idx);
@@ -835,13 +842,16 @@ ssi_aead_process_cipher_data_desc(
 	unsigned int idx = *seq_size;
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(areq);
 	enum ssi_req_dma_buf_type data_dma_type = areq_ctx->data_buff_type;
+	struct crypto_aead *tfm = crypto_aead_reqtfm(areq);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	if (areq_ctx->cryptlen == 0)
 		return; /*null processing*/
 
 	switch (data_dma_type) {
 	case SSI_DMA_BUF_DLLI:
-		SSI_LOG_DEBUG("CIPHER: SRC/DST buffer type DLLI\n");
+		dev_dbg(dev, "CIPHER: SRC/DST buffer type DLLI\n");
 		hw_desc_init(&desc[idx]);
 		set_din_type(&desc[idx], DMA_DLLI,
 			     (sg_dma_address(areq_ctx->src_sgl) +
@@ -853,7 +863,7 @@ ssi_aead_process_cipher_data_desc(
 		set_flow_mode(&desc[idx], flow_mode);
 		break;
 	case SSI_DMA_BUF_MLLI:
-		SSI_LOG_DEBUG("CIPHER: SRC/DST buffer type MLLI\n");
+		dev_dbg(dev, "CIPHER: SRC/DST buffer type MLLI\n");
 		hw_desc_init(&desc[idx]);
 		set_din_type(&desc[idx], DMA_MLLI, areq_ctx->src.sram_addr,
 			     areq_ctx->src.mlli_nents, NS_BIT);
@@ -863,7 +873,7 @@ ssi_aead_process_cipher_data_desc(
 		break;
 	case SSI_DMA_BUF_NULL:
 	default:
-		SSI_LOG_ERR("CIPHER: Invalid SRC/DST buffer type\n");
+		dev_err(dev, "CIPHER: Invalid SRC/DST buffer type\n");
 	}
 
 	*seq_size = (++idx);
@@ -1178,14 +1188,15 @@ static inline void ssi_aead_load_mlli_to_sram(
 	struct aead_req_ctx *req_ctx = aead_request_ctx(req);
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	if (unlikely(
 		(req_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI) ||
 		(req_ctx->data_buff_type == SSI_DMA_BUF_MLLI) ||
 		!req_ctx->is_single_pass)) {
-		SSI_LOG_DEBUG("Copy-to-sram: mlli_dma=%08x, mlli_size=%u\n",
-			      (unsigned int)ctx->drvdata->mlli_sram_addr,
-			      req_ctx->mlli_params.mlli_len);
+		dev_dbg(dev, "Copy-to-sram: mlli_dma=%08x, mlli_size=%u\n",
+			(unsigned int)ctx->drvdata->mlli_sram_addr,
+			req_ctx->mlli_params.mlli_len);
 		/* Copy MLLI table host-to-sram */
 		hw_desc_init(&desc[*seq_size]);
 		set_din_type(&desc[*seq_size], DMA_DLLI,
@@ -1333,6 +1344,7 @@ static int validate_data_size(struct ssi_aead_ctx *ctx,
 			      struct aead_request *req)
 {
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	unsigned int assoclen = req->assoclen;
 	unsigned int cipherlen = (direct == DRV_CRYPTO_DIRECTION_DECRYPT) ?
 			(req->cryptlen - ctx->authsize) : req->cryptlen;
@@ -1371,7 +1383,7 @@ static int validate_data_size(struct ssi_aead_ctx *ctx,
 			areq_ctx->is_single_pass = false;
 		break;
 	default:
-		SSI_LOG_ERR("Unexpected flow mode (%d)\n", ctx->flow_mode);
+		dev_err(dev, "Unexpected flow mode (%d)\n", ctx->flow_mode);
 		goto data_size_err;
 	}
 
@@ -1554,6 +1566,7 @@ static int config_ccm_adata(struct aead_request *req)
 {
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct aead_req_ctx *req_ctx = aead_request_ctx(req);
 	//unsigned int size_of_a = 0, rem_a_size = 0;
 	unsigned int lp = req->iv[0];
@@ -1575,7 +1588,7 @@ static int config_ccm_adata(struct aead_request *req)
 	/* taken from crypto/ccm.c */
 	/* 2 <= L <= 8, so 1 <= L' <= 7. */
 	if (l < 2 || l > 8) {
-		SSI_LOG_ERR("illegal iv value %X\n", req->iv[0]);
+		dev_err(dev, "illegal iv value %X\n", req->iv[0]);
 		return -EINVAL;
 	}
 	memcpy(b0, req->iv, AES_BLOCK_SIZE);
@@ -1588,8 +1601,10 @@ static int config_ccm_adata(struct aead_request *req)
 		*b0 |= 64;  /* Enable bit 6 if Adata exists. */
 
 	rc = set_msg_len(b0 + 16 - l, cryptlen, l);  /* Write L'. */
-	if (rc != 0)
+	if (rc != 0) {
+		dev_err(dev, "message len overflow detected");
 		return rc;
+	}
 	 /* END of "taken from crypto/ccm.c" */
 
 	/* l(a) - size of associated data. */
@@ -1812,7 +1827,6 @@ static inline int ssi_aead_gcm(
 	unsigned int *seq_size)
 {
 	struct aead_req_ctx *req_ctx = aead_request_ctx(req);
-	unsigned int idx = *seq_size;
 	unsigned int cipher_flow_mode;
 
 	if (req_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) {
@@ -1829,7 +1843,6 @@ static inline int ssi_aead_gcm(
 		ssi_aead_create_assoc_desc(req, DIN_HASH, desc, seq_size);
 		ssi_aead_gcm_setup_gctr_desc(req, desc, seq_size);
 		ssi_aead_process_gcm_result_desc(req, desc, seq_size);
-		idx = *seq_size;
 		return 0;
 	}
 
@@ -1844,7 +1857,6 @@ static inline int ssi_aead_gcm(
 		ssi_aead_process_cipher_data_desc(req, cipher_flow_mode, desc, seq_size);
 	ssi_aead_process_gcm_result_desc(req, desc, seq_size);
 
-	idx = *seq_size;
 	return 0;
 }
 
@@ -1861,13 +1873,13 @@ static inline void ssi_aead_dump_gcm(
 		return;
 
 	if (title) {
-		SSI_LOG_DEBUG("----------------------------------------------------------------------------------");
-		SSI_LOG_DEBUG("%s\n", title);
+		dev_dbg(dev, "----------------------------------------------------------------------------------");
+		dev_dbg(dev, "%s\n", title);
 	}
 
-	SSI_LOG_DEBUG("cipher_mode %d, authsize %d, enc_keylen %d, assoclen %d, cryptlen %d\n",
-		      ctx->cipher_mode, ctx->authsize, ctx->enc_keylen,
-		      req->assoclen, req_ctx->cryptlen);
+	dev_dbg(dev, "cipher_mode %d, authsize %d, enc_keylen %d, assoclen %d, cryptlen %d\n",
+		ctx->cipher_mode, ctx->authsize, ctx->enc_keylen,
+		req->assoclen, req_ctx->cryptlen);
 
 	if (ctx->enckey)
 		dump_byte_array("mac key", ctx->enckey, 16);
@@ -1897,6 +1909,7 @@ static int config_gcm_context(struct aead_request *req)
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
 	struct aead_req_ctx *req_ctx = aead_request_ctx(req);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	unsigned int cryptlen = (req_ctx->gen_ctx.op_type ==
 				 DRV_CRYPTO_DIRECTION_ENCRYPT) ?
@@ -1904,7 +1917,8 @@ static int config_gcm_context(struct aead_request *req)
 				(req->cryptlen - ctx->authsize);
 	__be32 counter = cpu_to_be32(2);
 
-	SSI_LOG_DEBUG("%s() cryptlen = %d, req->assoclen = %d ctx->authsize = %d\n", __func__, cryptlen, req->assoclen, ctx->authsize);
+	dev_dbg(dev, "%s() cryptlen = %d, req->assoclen = %d ctx->authsize = %d\n",
+		__func__, cryptlen, req->assoclen, ctx->authsize);
 
 	memset(req_ctx->hkey, 0, AES_BLOCK_SIZE);
 
@@ -1958,20 +1972,20 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct ssi_crypto_req ssi_req = {};
 
-	SSI_LOG_DEBUG("%s context=%p req=%p iv=%p src=%p src_ofs=%d dst=%p dst_ofs=%d cryptolen=%d\n",
-		      ((direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? "Encrypt" : "Decrypt"),
-		      ctx, req, req->iv, sg_virt(req->src), req->src->offset,
-		      sg_virt(req->dst), req->dst->offset, req->cryptlen);
+	dev_dbg(dev, "%s context=%p req=%p iv=%p src=%p src_ofs=%d dst=%p dst_ofs=%d cryptolen=%d\n",
+		((direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? "Enc" : "Dec"),
+		ctx, req, req->iv, sg_virt(req->src), req->src->offset,
+		sg_virt(req->dst), req->dst->offset, req->cryptlen);
 
 	/* STAT_PHASE_0: Init and sanity checks */
 
 	/* Check data length according to mode */
 	if (unlikely(validate_data_size(ctx, direct, req) != 0)) {
-		SSI_LOG_ERR("Unsupported crypt/assoc len %d/%d.\n",
-			    req->cryptlen, req->assoclen);
+		dev_err(dev, "Unsupported crypt/assoc len %d/%d.\n",
+			req->cryptlen, req->assoclen);
 		crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_BLOCK_LEN);
 		return -EINVAL;
 	}
@@ -2017,7 +2031,8 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction
 	if (ctx->cipher_mode == DRV_CIPHER_CCM) {
 		rc = config_ccm_adata(req);
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("config_ccm_adata() returned with a failure %d!", rc);
+			dev_dbg(dev, "config_ccm_adata() returned with a failure %d!",
+				rc);
 			goto exit;
 		}
 	} else {
@@ -2031,7 +2046,8 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction
 	if (ctx->cipher_mode == DRV_CIPHER_GCTR) {
 		rc = config_gcm_context(req);
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("config_gcm_context() returned with a failure %d!", rc);
+			dev_dbg(dev, "config_gcm_context() returned with a failure %d!",
+				rc);
 			goto exit;
 		}
 	}
@@ -2039,7 +2055,7 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction
 
 	rc = ssi_buffer_mgr_map_aead_request(ctx->drvdata, req);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("map_request() failed\n");
+		dev_err(dev, "map_request() failed\n");
 		goto exit;
 	}
 
@@ -2095,7 +2111,7 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction
 			break;
 #endif
 	default:
-		SSI_LOG_ERR("Unsupported authenc (%d)\n", ctx->auth_mode);
+		dev_err(dev, "Unsupported authenc (%d)\n", ctx->auth_mode);
 		ssi_buffer_mgr_unmap_aead_request(dev, req);
 		rc = -ENOTSUPP;
 		goto exit;
@@ -2106,7 +2122,7 @@ static int ssi_aead_process(struct aead_request *req, enum drv_crypto_direction
 	rc = send_request(ctx->drvdata, &ssi_req, desc, seq_len, 1);
 
 	if (unlikely(rc != -EINPROGRESS)) {
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 		ssi_buffer_mgr_unmap_aead_request(dev, req);
 	}
 
@@ -2139,10 +2155,13 @@ static int ssi_rfc4309_ccm_encrypt(struct aead_request *req)
 	/* Very similar to ssi_aead_encrypt() above. */
 
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	int rc = -EINVAL;
 
 	if (!valid_assoclen(req)) {
-		SSI_LOG_ERR("invalid Assoclen:%u\n", req->assoclen);
+		dev_err(dev, "invalid Assoclen:%u\n", req->assoclen);
 		goto out;
 	}
 
@@ -2183,13 +2202,14 @@ static int ssi_aead_decrypt(struct aead_request *req)
 #if SSI_CC_HAS_AES_CCM
 static int ssi_rfc4309_ccm_decrypt(struct aead_request *req)
 {
-	/* Very similar to ssi_aead_decrypt() above. */
-
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
 	int rc = -EINVAL;
 
 	if (!valid_assoclen(req)) {
-		SSI_LOG_ERR("invalid Assoclen:%u\n", req->assoclen);
+		dev_err(dev, "invalid Assoclen:%u\n", req->assoclen);
 		goto out;
 	}
 
@@ -2214,9 +2234,9 @@ out:
 static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 {
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
-	int rc = 0;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("%s()  keylen %d, key %p\n", __func__, keylen, key);
+	dev_dbg(dev, "%s()  keylen %d, key %p\n", __func__, keylen, key);
 
 	if (keylen < 4)
 		return -EINVAL;
@@ -2224,17 +2244,15 @@ static int ssi_rfc4106_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
 	keylen -= 4;
 	memcpy(ctx->ctr_nonce, key + keylen, 4);
 
-	rc = ssi_aead_setkey(tfm, key, keylen);
-
-	return rc;
+	return ssi_aead_setkey(tfm, key, keylen);
 }
 
 static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsigned int keylen)
 {
 	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
-	int rc = 0;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("%s()  keylen %d, key %p\n", __func__, keylen, key);
+	dev_dbg(dev, "%s()  keylen %d, key %p\n", __func__, keylen, key);
 
 	if (keylen < 4)
 		return -EINVAL;
@@ -2242,9 +2260,7 @@ static int ssi_rfc4543_gcm_setkey(struct crypto_aead *tfm, const u8 *key, unsign
 	keylen -= 4;
 	memcpy(ctx->ctr_nonce, key + keylen, 4);
 
-	rc = ssi_aead_setkey(tfm, key, keylen);
-
-	return rc;
+	return ssi_aead_setkey(tfm, key, keylen);
 }
 
 static int ssi_gcm_setauthsize(struct crypto_aead *authenc,
@@ -2269,7 +2285,10 @@ static int ssi_gcm_setauthsize(struct crypto_aead *authenc,
 static int ssi_rfc4106_gcm_setauthsize(struct crypto_aead *authenc,
 				       unsigned int authsize)
 {
-	SSI_LOG_DEBUG("authsize %d\n", authsize);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(authenc);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+	dev_dbg(dev, "authsize %d\n", authsize);
 
 	switch (authsize) {
 	case 8:
@@ -2286,7 +2305,10 @@ static int ssi_rfc4106_gcm_setauthsize(struct crypto_aead *authenc,
 static int ssi_rfc4543_gcm_setauthsize(struct crypto_aead *authenc,
 				       unsigned int authsize)
 {
-	SSI_LOG_DEBUG("authsize %d\n", authsize);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(authenc);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
+
+	dev_dbg(dev, "authsize %d\n", authsize);
 
 	if (authsize != 16)
 		return -EINVAL;
@@ -2298,11 +2320,14 @@ static int ssi_rfc4106_gcm_encrypt(struct aead_request *req)
 {
 	/* Very similar to ssi_aead_encrypt() above. */
 
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
 	int rc = -EINVAL;
 
 	if (!valid_assoclen(req)) {
-		SSI_LOG_ERR("invalid Assoclen:%u\n", req->assoclen);
+		dev_err(dev, "invalid Assoclen:%u\n", req->assoclen);
 		goto out;
 	}
 
@@ -2350,11 +2375,14 @@ static int ssi_rfc4106_gcm_decrypt(struct aead_request *req)
 {
 	/* Very similar to ssi_aead_decrypt() above. */
 
+	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct ssi_aead_ctx *ctx = crypto_aead_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
 	int rc = -EINVAL;
 
 	if (!valid_assoclen(req)) {
-		SSI_LOG_ERR("invalid Assoclen:%u\n", req->assoclen);
+		dev_err(dev, "invalid Assoclen:%u\n", req->assoclen);
 		goto out;
 	}
 
@@ -2654,16 +2682,17 @@ static struct ssi_alg_template aead_algs[] = {
 #endif /*SSI_CC_HAS_AES_GCM*/
 };
 
-static struct ssi_crypto_alg *ssi_aead_create_alg(struct ssi_alg_template *template)
+static struct ssi_crypto_alg *ssi_aead_create_alg(
+			struct ssi_alg_template *template,
+			struct device *dev)
 {
 	struct ssi_crypto_alg *t_alg;
 	struct aead_alg *alg;
 
 	t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL);
-	if (!t_alg) {
-		SSI_LOG_ERR("failed to allocate t_alg\n");
+	if (!t_alg)
 		return ERR_PTR(-ENOMEM);
-	}
+
 	alg = &template->template_aead;
 
 	snprintf(alg->base.cra_name, CRYPTO_MAX_ALG_NAME, "%s", template->name);
@@ -2713,6 +2742,7 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata)
 	struct ssi_crypto_alg *t_alg;
 	int rc = -ENOMEM;
 	int alg;
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	aead_handle = kmalloc(sizeof(*aead_handle), GFP_KERNEL);
 	if (!aead_handle) {
@@ -2720,36 +2750,36 @@ int ssi_aead_alloc(struct ssi_drvdata *drvdata)
 		goto fail0;
 	}
 
+	INIT_LIST_HEAD(&aead_handle->aead_list);
 	drvdata->aead_handle = aead_handle;
 
 	aead_handle->sram_workspace_addr = ssi_sram_mgr_alloc(
 		drvdata, MAX_HMAC_DIGEST_SIZE);
 	if (aead_handle->sram_workspace_addr == NULL_SRAM_ADDR) {
-		SSI_LOG_ERR("SRAM pool exhausted\n");
+		dev_err(dev, "SRAM pool exhausted\n");
 		rc = -ENOMEM;
 		goto fail1;
 	}
 
-	INIT_LIST_HEAD(&aead_handle->aead_list);
-
 	/* Linux crypto */
 	for (alg = 0; alg < ARRAY_SIZE(aead_algs); alg++) {
-		t_alg = ssi_aead_create_alg(&aead_algs[alg]);
+		t_alg = ssi_aead_create_alg(&aead_algs[alg], dev);
 		if (IS_ERR(t_alg)) {
 			rc = PTR_ERR(t_alg);
-			SSI_LOG_ERR("%s alg allocation failed\n",
-				    aead_algs[alg].driver_name);
+			dev_err(dev, "%s alg allocation failed\n",
+				aead_algs[alg].driver_name);
 			goto fail1;
 		}
 		t_alg->drvdata = drvdata;
 		rc = crypto_register_aead(&t_alg->aead_alg);
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("%s alg registration failed\n",
-				    t_alg->aead_alg.base.cra_driver_name);
+			dev_err(dev, "%s alg registration failed\n",
+				t_alg->aead_alg.base.cra_driver_name);
 			goto fail2;
 		} else {
 			list_add_tail(&t_alg->entry, &aead_handle->aead_list);
-			SSI_LOG_DEBUG("Registered %s\n", t_alg->aead_alg.base.cra_driver_name);
+			dev_dbg(dev, "Registered %s\n",
+				t_alg->aead_alg.base.cra_driver_name);
 		}
 	}
 
diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/ssi_buffer_mgr.c
index 63936091d524..1f8a225530a8 100644
--- a/drivers/staging/ccree/ssi_buffer_mgr.c
+++ b/drivers/staging/ccree/ssi_buffer_mgr.c
@@ -33,14 +33,10 @@
 #include "ssi_hash.h"
 #include "ssi_aead.h"
 
-#ifdef CC_DEBUG
 #define GET_DMA_BUFFER_TYPE(buff_type) ( \
 	((buff_type) == SSI_DMA_BUF_NULL) ? "BUF_NULL" : \
 	((buff_type) == SSI_DMA_BUF_DLLI) ? "BUF_DLLI" : \
 	((buff_type) == SSI_DMA_BUF_MLLI) ? "BUF_MLLI" : "BUF_INVALID")
-#else
-#define GET_DMA_BUFFER_TYPE(buff_type)
-#endif
 
 enum dma_buffer_type {
 	DMA_NULL_TYPE = -1,
@@ -76,16 +72,12 @@ struct buffer_array {
  * @lbytes: [OUT] Returns the amount of bytes at the last entry
  */
 static unsigned int ssi_buffer_mgr_get_sgl_nents(
-	struct scatterlist *sg_list, unsigned int nbytes, u32 *lbytes, bool *is_chained)
+	struct device *dev, struct scatterlist *sg_list,
+	unsigned int nbytes, u32 *lbytes, bool *is_chained)
 {
 	unsigned int nents = 0;
 
 	while (nbytes != 0) {
-		if (sg_is_chain(sg_list)) {
-			SSI_LOG_ERR("Unexpected chained entry "
-				   "in sg (entry =0x%X)\n", nents);
-			BUG();
-		}
 		if (sg_list->length != 0) {
 			nents++;
 			/* get the number of bytes in the last entry */
@@ -98,7 +90,7 @@ static unsigned int ssi_buffer_mgr_get_sgl_nents(
 				*is_chained = true;
 		}
 	}
-	SSI_LOG_DEBUG("nents %d last bytes %d\n", nents, *lbytes);
+	dev_dbg(dev, "nents %d last bytes %d\n", nents, *lbytes);
 	return nents;
 }
 
@@ -134,20 +126,20 @@ void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len)
  * @direct:
  */
 void ssi_buffer_mgr_copy_scatterlist_portion(
-	u8 *dest, struct scatterlist *sg,
-	u32 to_skip,  u32 end,
-	enum ssi_sg_cpy_direct direct)
+	struct device *dev, u8 *dest,
+	struct scatterlist *sg, u32 to_skip,
+	u32 end, enum ssi_sg_cpy_direct direct)
 {
 	u32 nents, lbytes;
 
-	nents = ssi_buffer_mgr_get_sgl_nents(sg, end, &lbytes, NULL);
+	nents = ssi_buffer_mgr_get_sgl_nents(dev, sg, end, &lbytes, NULL);
 	sg_copy_buffer(sg, nents, (void *)dest, (end - to_skip + 1), to_skip,
 		       (direct == SSI_SG_TO_BUF));
 }
 
 static inline int ssi_buffer_mgr_render_buff_to_mlli(
-	dma_addr_t buff_dma, u32 buff_size, u32 *curr_nents,
-	u32 **mlli_entry_pp)
+	struct device *dev, dma_addr_t buff_dma, u32 buff_size,
+	u32 *curr_nents, u32 **mlli_entry_pp)
 {
 	u32 *mlli_entry_p = *mlli_entry_pp;
 	u32 new_nents;
@@ -161,9 +153,9 @@ static inline int ssi_buffer_mgr_render_buff_to_mlli(
 	while (buff_size > CC_MAX_MLLI_ENTRY_SIZE) {
 		cc_lli_set_addr(mlli_entry_p, buff_dma);
 		cc_lli_set_size(mlli_entry_p, CC_MAX_MLLI_ENTRY_SIZE);
-		SSI_LOG_DEBUG("entry[%d]: single_buff=0x%08X size=%08X\n", *curr_nents,
-			      mlli_entry_p[LLI_WORD0_OFFSET],
-			      mlli_entry_p[LLI_WORD1_OFFSET]);
+		dev_dbg(dev, "entry[%d]: single_buff=0x%08X size=%08X\n",
+			*curr_nents, mlli_entry_p[LLI_WORD0_OFFSET],
+			mlli_entry_p[LLI_WORD1_OFFSET]);
 		buff_dma += CC_MAX_MLLI_ENTRY_SIZE;
 		buff_size -= CC_MAX_MLLI_ENTRY_SIZE;
 		mlli_entry_p = mlli_entry_p + 2;
@@ -172,9 +164,9 @@ static inline int ssi_buffer_mgr_render_buff_to_mlli(
 	/*Last entry */
 	cc_lli_set_addr(mlli_entry_p, buff_dma);
 	cc_lli_set_size(mlli_entry_p, buff_size);
-	SSI_LOG_DEBUG("entry[%d]: single_buff=0x%08X size=%08X\n", *curr_nents,
-		      mlli_entry_p[LLI_WORD0_OFFSET],
-		      mlli_entry_p[LLI_WORD1_OFFSET]);
+	dev_dbg(dev, "entry[%d]: single_buff=0x%08X size=%08X\n",
+		*curr_nents, mlli_entry_p[LLI_WORD0_OFFSET],
+		mlli_entry_p[LLI_WORD1_OFFSET]);
 	mlli_entry_p = mlli_entry_p + 2;
 	*mlli_entry_pp = mlli_entry_p;
 	(*curr_nents)++;
@@ -182,8 +174,9 @@ static inline int ssi_buffer_mgr_render_buff_to_mlli(
 }
 
 static inline int ssi_buffer_mgr_render_scatterlist_to_mlli(
-	struct scatterlist *sgl, u32 sgl_data_len, u32 sgl_offset,
-	u32 *curr_nents, u32 **mlli_entry_pp)
+	struct device *dev, struct scatterlist *sgl,
+	u32 sgl_data_len, u32 sgl_offset, u32 *curr_nents,
+	u32 **mlli_entry_pp)
 {
 	struct scatterlist *curr_sgl = sgl;
 	u32 *mlli_entry_p = *mlli_entry_pp;
@@ -197,8 +190,8 @@ static inline int ssi_buffer_mgr_render_scatterlist_to_mlli(
 				sgl_data_len;
 		sgl_data_len -= entry_data_len;
 		rc = ssi_buffer_mgr_render_buff_to_mlli(
-			sg_dma_address(curr_sgl) + sgl_offset, entry_data_len,
-			curr_nents, &mlli_entry_p);
+			dev, sg_dma_address(curr_sgl) + sgl_offset,
+			entry_data_len, curr_nents, &mlli_entry_p);
 		if (rc != 0)
 			return rc;
 
@@ -217,14 +210,14 @@ static int ssi_buffer_mgr_generate_mlli(
 	u32 total_nents = 0, prev_total_nents = 0;
 	int rc = 0, i;
 
-	SSI_LOG_DEBUG("NUM of SG's = %d\n", sg_data->num_of_buffers);
+	dev_dbg(dev, "NUM of SG's = %d\n", sg_data->num_of_buffers);
 
 	/* Allocate memory from the pointed pool */
 	mlli_params->mlli_virt_addr = dma_pool_alloc(
 			mlli_params->curr_pool, GFP_KERNEL,
 			&mlli_params->mlli_dma_addr);
 	if (unlikely(!mlli_params->mlli_virt_addr)) {
-		SSI_LOG_ERR("dma_pool_alloc() failed\n");
+		dev_err(dev, "dma_pool_alloc() failed\n");
 		rc = -ENOMEM;
 		goto build_mlli_exit;
 	}
@@ -234,12 +227,12 @@ static int ssi_buffer_mgr_generate_mlli(
 	for (i = 0; i < sg_data->num_of_buffers; i++) {
 		if (sg_data->type[i] == DMA_SGL_TYPE)
 			rc = ssi_buffer_mgr_render_scatterlist_to_mlli(
-				sg_data->entry[i].sgl,
-				sg_data->total_data_len[i], sg_data->offset[i], &total_nents,
-				&mlli_p);
+				dev, sg_data->entry[i].sgl,
+				sg_data->total_data_len[i], sg_data->offset[i],
+				&total_nents, &mlli_p);
 		else /*DMA_BUFF_TYPE*/
 			rc = ssi_buffer_mgr_render_buff_to_mlli(
-				sg_data->entry[i].buffer_dma,
+				dev, sg_data->entry[i].buffer_dma,
 				sg_data->total_data_len[i], &total_nents,
 				&mlli_p);
 		if (rc != 0)
@@ -259,26 +252,23 @@ static int ssi_buffer_mgr_generate_mlli(
 	/* Set MLLI size for the bypass operation */
 	mlli_params->mlli_len = (total_nents * LLI_ENTRY_BYTE_SIZE);
 
-	SSI_LOG_DEBUG("MLLI params: "
-		     "virt_addr=%pK dma_addr=%pad mlli_len=0x%X\n",
-		   mlli_params->mlli_virt_addr,
-		   mlli_params->mlli_dma_addr,
-		   mlli_params->mlli_len);
+	dev_dbg(dev, "MLLI params: virt_addr=%pK dma_addr=%pad mlli_len=0x%X\n",
+		mlli_params->mlli_virt_addr, &mlli_params->mlli_dma_addr,
+		mlli_params->mlli_len);
 
 build_mlli_exit:
 	return rc;
 }
 
 static inline void ssi_buffer_mgr_add_buffer_entry(
-	struct buffer_array *sgl_data,
+	struct device *dev, struct buffer_array *sgl_data,
 	dma_addr_t buffer_dma, unsigned int buffer_len,
 	bool is_last_entry, u32 *mlli_nents)
 {
 	unsigned int index = sgl_data->num_of_buffers;
 
-	SSI_LOG_DEBUG("index=%u single_buff=%pad "
-		     "buffer_len=0x%08X is_last=%d\n",
-		     index, buffer_dma, buffer_len, is_last_entry);
+	dev_dbg(dev, "index=%u single_buff=%pad buffer_len=0x%08X is_last=%d\n",
+		index, &buffer_dma, buffer_len, is_last_entry);
 	sgl_data->nents[index] = 1;
 	sgl_data->entry[index].buffer_dma = buffer_dma;
 	sgl_data->offset[index] = 0;
@@ -292,6 +282,7 @@ static inline void ssi_buffer_mgr_add_buffer_entry(
 }
 
 static inline void ssi_buffer_mgr_add_scatterlist_entry(
+	struct device *dev,
 	struct buffer_array *sgl_data,
 	unsigned int nents,
 	struct scatterlist *sgl,
@@ -302,8 +293,8 @@ static inline void ssi_buffer_mgr_add_scatterlist_entry(
 {
 	unsigned int index = sgl_data->num_of_buffers;
 
-	SSI_LOG_DEBUG("index=%u nents=%u sgl=%pK data_len=0x%08X is_last=%d\n",
-		      index, nents, sgl, data_len, is_last_table);
+	dev_dbg(dev, "index=%u nents=%u sgl=%pK data_len=0x%08X is_last=%d\n",
+		index, nents, sgl, data_len, is_last_table);
 	sgl_data->nents[index] = nents;
 	sgl_data->entry[index].sgl = sgl;
 	sgl_data->offset[index] = data_offset;
@@ -327,7 +318,7 @@ ssi_buffer_mgr_dma_map_sg(struct device *dev, struct scatterlist *sg, u32 nents,
 		if (!l_sg)
 			break;
 		if (unlikely(dma_map_sg(dev, l_sg, 1, direction) != 1)) {
-			SSI_LOG_ERR("dma_map_page() sg buffer failed\n");
+			dev_err(dev, "dma_map_page() sg buffer failed\n");
 			goto err;
 		}
 		l_sg = sg_next(l_sg);
@@ -356,26 +347,22 @@ static int ssi_buffer_mgr_map_scatterlist(
 	if (sg_is_last(sg)) {
 		/* One entry only case -set to DLLI */
 		if (unlikely(dma_map_sg(dev, sg, 1, direction) != 1)) {
-			SSI_LOG_ERR("dma_map_sg() single buffer failed\n");
+			dev_err(dev, "dma_map_sg() single buffer failed\n");
 			return -ENOMEM;
 		}
-		SSI_LOG_DEBUG("Mapped sg: dma_address=%pad "
-			     "page=%p addr=%pK offset=%u "
-			     "length=%u\n",
-			     sg_dma_address(sg),
-			     sg_page(sg),
-			     sg_virt(sg),
-			     sg->offset, sg->length);
+		dev_dbg(dev, "Mapped sg: dma_address=%pad page=%p addr=%pK offset=%u length=%u\n",
+			&sg_dma_address(sg), sg_page(sg), sg_virt(sg),
+			sg->offset, sg->length);
 		*lbytes = nbytes;
 		*nents = 1;
 		*mapped_nents = 1;
 	} else {  /*sg_is_last*/
-		*nents = ssi_buffer_mgr_get_sgl_nents(sg, nbytes, lbytes,
+		*nents = ssi_buffer_mgr_get_sgl_nents(dev, sg, nbytes, lbytes,
 						      &is_chained);
 		if (*nents > max_sg_nents) {
 			*nents = 0;
-			SSI_LOG_ERR("Too many fragments. current %d max %d\n",
-				    *nents, max_sg_nents);
+			dev_err(dev, "Too many fragments. current %d max %d\n",
+				*nents, max_sg_nents);
 			return -ENOMEM;
 		}
 		if (!is_chained) {
@@ -385,7 +372,7 @@ static int ssi_buffer_mgr_map_scatterlist(
 			*mapped_nents = dma_map_sg(dev, sg, *nents, direction);
 			if (unlikely(*mapped_nents == 0)) {
 				*nents = 0;
-				SSI_LOG_ERR("dma_map_sg() sg buffer failed\n");
+				dev_err(dev, "dma_map_sg() sg buffer failed\n");
 				return -ENOMEM;
 			}
 		} else {
@@ -398,7 +385,7 @@ static int ssi_buffer_mgr_map_scatterlist(
 								  direction);
 			if (unlikely(*mapped_nents != *nents)) {
 				*nents = *mapped_nents;
-				SSI_LOG_ERR("dma_map_sg() sg buffer failed\n");
+				dev_err(dev, "dma_map_sg() sg buffer failed\n");
 				return -ENOMEM;
 			}
 		}
@@ -414,26 +401,22 @@ ssi_aead_handle_config_buf(struct device *dev,
 			   struct buffer_array *sg_data,
 			   unsigned int assoclen)
 {
-	SSI_LOG_DEBUG(" handle additional data config set to   DLLI\n");
+	dev_dbg(dev, " handle additional data config set to DLLI\n");
 	/* create sg for the current buffer */
 	sg_init_one(&areq_ctx->ccm_adata_sg, config_data, AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size);
 	if (unlikely(dma_map_sg(dev, &areq_ctx->ccm_adata_sg, 1,
 				DMA_TO_DEVICE) != 1)) {
-			SSI_LOG_ERR("dma_map_sg() "
-			   "config buffer failed\n");
-			return -ENOMEM;
+		dev_err(dev, "dma_map_sg() config buffer failed\n");
+		return -ENOMEM;
 	}
-	SSI_LOG_DEBUG("Mapped curr_buff: dma_address=%pad "
-		     "page=%p addr=%pK "
-		     "offset=%u length=%u\n",
-		     sg_dma_address(&areq_ctx->ccm_adata_sg),
-		     sg_page(&areq_ctx->ccm_adata_sg),
-		     sg_virt(&areq_ctx->ccm_adata_sg),
-		     areq_ctx->ccm_adata_sg.offset,
-		     areq_ctx->ccm_adata_sg.length);
+	dev_dbg(dev, "Mapped curr_buff: dma_address=%pad page=%p addr=%pK offset=%u length=%u\n",
+		&sg_dma_address(&areq_ctx->ccm_adata_sg),
+		sg_page(&areq_ctx->ccm_adata_sg),
+		sg_virt(&areq_ctx->ccm_adata_sg),
+		areq_ctx->ccm_adata_sg.offset, areq_ctx->ccm_adata_sg.length);
 	/* prepare for case of MLLI */
 	if (assoclen > 0) {
-		ssi_buffer_mgr_add_scatterlist_entry(sg_data, 1,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, 1,
 						     &areq_ctx->ccm_adata_sg,
 						     (AES_BLOCK_SIZE + areq_ctx->ccm_hdr_size),
 						     0, false, NULL);
@@ -447,28 +430,23 @@ static inline int ssi_ahash_handle_curr_buf(struct device *dev,
 					    u32 curr_buff_cnt,
 					    struct buffer_array *sg_data)
 {
-	SSI_LOG_DEBUG(" handle curr buff %x set to   DLLI\n", curr_buff_cnt);
+	dev_dbg(dev, " handle curr buff %x set to   DLLI\n", curr_buff_cnt);
 	/* create sg for the current buffer */
 	sg_init_one(areq_ctx->buff_sg, curr_buff, curr_buff_cnt);
 	if (unlikely(dma_map_sg(dev, areq_ctx->buff_sg, 1,
 				DMA_TO_DEVICE) != 1)) {
-			SSI_LOG_ERR("dma_map_sg() "
-			   "src buffer failed\n");
-			return -ENOMEM;
+		dev_err(dev, "dma_map_sg() src buffer failed\n");
+		return -ENOMEM;
 	}
-	SSI_LOG_DEBUG("Mapped curr_buff: dma_address=%pad "
-		     "page=%p addr=%pK "
-		     "offset=%u length=%u\n",
-		     sg_dma_address(areq_ctx->buff_sg),
-		     sg_page(areq_ctx->buff_sg),
-		     sg_virt(areq_ctx->buff_sg),
-		     areq_ctx->buff_sg->offset,
-		     areq_ctx->buff_sg->length);
+	dev_dbg(dev, "Mapped curr_buff: dma_address=%pad page=%p addr=%pK offset=%u length=%u\n",
+		&sg_dma_address(areq_ctx->buff_sg), sg_page(areq_ctx->buff_sg),
+		sg_virt(areq_ctx->buff_sg), areq_ctx->buff_sg->offset,
+		areq_ctx->buff_sg->length);
 	areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI;
 	areq_ctx->curr_sg = areq_ctx->buff_sg;
 	areq_ctx->in_nents = 0;
 	/* prepare for case of MLLI */
-	ssi_buffer_mgr_add_scatterlist_entry(sg_data, 1, areq_ctx->buff_sg,
+	ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data, 1, areq_ctx->buff_sg,
 					     curr_buff_cnt, 0, false, NULL);
 	return 0;
 }
@@ -483,9 +461,8 @@ void ssi_buffer_mgr_unmap_blkcipher_request(
 	struct blkcipher_req_ctx *req_ctx = (struct blkcipher_req_ctx *)ctx;
 
 	if (likely(req_ctx->gen_ctx.iv_dma_addr != 0)) {
-		SSI_LOG_DEBUG("Unmapped iv: iv_dma_addr=%pad iv_size=%u\n",
-			      req_ctx->gen_ctx.iv_dma_addr,
-			      ivsize);
+		dev_dbg(dev, "Unmapped iv: iv_dma_addr=%pad iv_size=%u\n",
+			&req_ctx->gen_ctx.iv_dma_addr, ivsize);
 		dma_unmap_single(dev, req_ctx->gen_ctx.iv_dma_addr,
 				 ivsize,
 				 req_ctx->is_giv ? DMA_BIDIRECTIONAL :
@@ -499,11 +476,11 @@ void ssi_buffer_mgr_unmap_blkcipher_request(
 	}
 
 	dma_unmap_sg(dev, src, req_ctx->in_nents, DMA_BIDIRECTIONAL);
-	SSI_LOG_DEBUG("Unmapped req->src=%pK\n", sg_virt(src));
+	dev_dbg(dev, "Unmapped req->src=%pK\n", sg_virt(src));
 
 	if (src != dst) {
 		dma_unmap_sg(dev, dst, req_ctx->out_nents, DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("Unmapped req->dst=%pK\n", sg_virt(dst));
+		dev_dbg(dev, "Unmapped req->dst=%pK\n", sg_virt(dst));
 	}
 }
 
@@ -519,7 +496,7 @@ int ssi_buffer_mgr_map_blkcipher_request(
 	struct blkcipher_req_ctx *req_ctx = (struct blkcipher_req_ctx *)ctx;
 	struct mlli_params *mlli_params = &req_ctx->mlli_params;
 	struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	struct buffer_array sg_data;
 	u32 dummy = 0;
 	int rc = 0;
@@ -539,13 +516,12 @@ int ssi_buffer_mgr_map_blkcipher_request(
 				       DMA_TO_DEVICE);
 		if (unlikely(dma_mapping_error(dev,
 					       req_ctx->gen_ctx.iv_dma_addr))) {
-			SSI_LOG_ERR("Mapping iv %u B at va=%pK "
-				   "for DMA failed\n", ivsize, info);
+			dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n",
+				ivsize, info);
 			return -ENOMEM;
 		}
-		SSI_LOG_DEBUG("Mapped iv %u B at va=%pK to dma=%pad\n",
-			      ivsize, info,
-			      req_ctx->gen_ctx.iv_dma_addr);
+		dev_dbg(dev, "Mapped iv %u B at va=%pK to dma=%pad\n",
+			ivsize, info, &req_ctx->gen_ctx.iv_dma_addr);
 	} else {
 		req_ctx->gen_ctx.iv_dma_addr = 0;
 	}
@@ -567,7 +543,7 @@ int ssi_buffer_mgr_map_blkcipher_request(
 		/* Handle inplace operation */
 		if (unlikely(req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI)) {
 			req_ctx->out_nents = 0;
-			ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+			ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data,
 							     req_ctx->in_nents,
 							     src, nbytes, 0,
 							     true,
@@ -587,12 +563,12 @@ int ssi_buffer_mgr_map_blkcipher_request(
 			req_ctx->dma_buf_type = SSI_DMA_BUF_MLLI;
 
 		if (unlikely((req_ctx->dma_buf_type == SSI_DMA_BUF_MLLI))) {
-			ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+			ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data,
 							     req_ctx->in_nents,
 							     src, nbytes, 0,
 							     true,
 							     &req_ctx->in_mlli_nents);
-			ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+			ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data,
 							     req_ctx->out_nents,
 							     dst, nbytes, 0,
 							     true,
@@ -607,8 +583,8 @@ int ssi_buffer_mgr_map_blkcipher_request(
 			goto ablkcipher_exit;
 	}
 
-	SSI_LOG_DEBUG("areq_ctx->dma_buf_type = %s\n",
-		      GET_DMA_BUFFER_TYPE(req_ctx->dma_buf_type));
+	dev_dbg(dev, "areq_ctx->dma_buf_type = %s\n",
+		GET_DMA_BUFFER_TYPE(req_ctx->dma_buf_type));
 
 	return 0;
 
@@ -674,30 +650,34 @@ void ssi_buffer_mgr_unmap_aead_request(
 	 *allocated and should be released
 	 */
 	if (areq_ctx->mlli_params.curr_pool) {
-		SSI_LOG_DEBUG("free MLLI buffer: dma=%pad virt=%pK\n",
-			      areq_ctx->mlli_params.mlli_dma_addr,
-			      areq_ctx->mlli_params.mlli_virt_addr);
+		dev_dbg(dev, "free MLLI buffer: dma=%pad virt=%pK\n",
+			&areq_ctx->mlli_params.mlli_dma_addr,
+			areq_ctx->mlli_params.mlli_virt_addr);
 		dma_pool_free(areq_ctx->mlli_params.curr_pool,
 			      areq_ctx->mlli_params.mlli_virt_addr,
 			      areq_ctx->mlli_params.mlli_dma_addr);
 	}
 
-	SSI_LOG_DEBUG("Unmapping src sgl: req->src=%pK areq_ctx->src.nents=%u areq_ctx->assoc.nents=%u assoclen:%u cryptlen=%u\n", sg_virt(req->src), areq_ctx->src.nents, areq_ctx->assoc.nents, req->assoclen, req->cryptlen);
+	dev_dbg(dev, "Unmapping src sgl: req->src=%pK areq_ctx->src.nents=%u areq_ctx->assoc.nents=%u assoclen:%u cryptlen=%u\n",
+		sg_virt(req->src), areq_ctx->src.nents, areq_ctx->assoc.nents,
+		req->assoclen, req->cryptlen);
 	size_to_unmap = req->assoclen + req->cryptlen;
 	if (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_ENCRYPT)
 		size_to_unmap += areq_ctx->req_authsize;
 	if (areq_ctx->is_gcm4543)
 		size_to_unmap += crypto_aead_ivsize(tfm);
 
-	dma_unmap_sg(dev, req->src, ssi_buffer_mgr_get_sgl_nents(req->src, size_to_unmap, &dummy, &chained), DMA_BIDIRECTIONAL);
+	dma_unmap_sg(dev, req->src,
+		     ssi_buffer_mgr_get_sgl_nents(dev, req->src, size_to_unmap,
+						  &dummy, &chained),
+		     DMA_BIDIRECTIONAL);
 	if (unlikely(req->src != req->dst)) {
-		SSI_LOG_DEBUG("Unmapping dst sgl: req->dst=%pK\n",
-			      sg_virt(req->dst));
+		dev_dbg(dev, "Unmapping dst sgl: req->dst=%pK\n",
+			sg_virt(req->dst));
 		dma_unmap_sg(dev, req->dst,
-			     ssi_buffer_mgr_get_sgl_nents(req->dst,
+			     ssi_buffer_mgr_get_sgl_nents(dev, req->dst,
 							  size_to_unmap,
-							  &dummy,
-							  &chained),
+							  &dummy, &chained),
 			     DMA_BIDIRECTIONAL);
 	}
 	if (drvdata->coherent &&
@@ -712,13 +692,14 @@ void ssi_buffer_mgr_unmap_aead_request(
 		 * data memory overriding that caused by cache coherence problem.
 		 */
 		ssi_buffer_mgr_copy_scatterlist_portion(
-			areq_ctx->backup_mac, req->src,
+			dev, areq_ctx->backup_mac, req->src,
 			size_to_skip + req->cryptlen - areq_ctx->req_authsize,
 			size_to_skip + req->cryptlen, SSI_SG_FROM_BUF);
 	}
 }
 
 static inline int ssi_buffer_mgr_get_aead_icv_nents(
+	struct device *dev,
 	struct scatterlist *sgl,
 	unsigned int sgl_nents,
 	unsigned int authsize,
@@ -757,12 +738,12 @@ static inline int ssi_buffer_mgr_get_aead_icv_nents(
 		nents = 2;
 		*is_icv_fragmented = true;
 	} else {
-		SSI_LOG_ERR("Unsupported num. of ICV fragments (> %d)\n",
-			    MAX_ICV_NENTS_SUPPORTED);
+		dev_err(dev, "Unsupported num. of ICV fragments (> %d)\n",
+			MAX_ICV_NENTS_SUPPORTED);
 		nents = -1; /*unsupported*/
 	}
-	SSI_LOG_DEBUG("is_frag=%s icv_nents=%u\n",
-		      (*is_icv_fragmented ? "true" : "false"), nents);
+	dev_dbg(dev, "is_frag=%s icv_nents=%u\n",
+		(*is_icv_fragmented ? "true" : "false"), nents);
 
 	return nents;
 }
@@ -775,7 +756,7 @@ static inline int ssi_buffer_mgr_aead_chain_iv(
 {
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
 	unsigned int hw_iv_size = areq_ctx->hw_iv_size;
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	int rc = 0;
 
 	if (unlikely(!req->iv)) {
@@ -786,22 +767,22 @@ static inline int ssi_buffer_mgr_aead_chain_iv(
 	areq_ctx->gen_ctx.iv_dma_addr = dma_map_single(dev, req->iv, hw_iv_size,
 						       DMA_BIDIRECTIONAL);
 	if (unlikely(dma_mapping_error(dev, areq_ctx->gen_ctx.iv_dma_addr))) {
-		SSI_LOG_ERR("Mapping iv %u B at va=%pK for DMA failed\n",
-			    hw_iv_size, req->iv);
+		dev_err(dev, "Mapping iv %u B at va=%pK for DMA failed\n",
+			hw_iv_size, req->iv);
 		rc = -ENOMEM;
 		goto chain_iv_exit;
 	}
 
-	SSI_LOG_DEBUG("Mapped iv %u B at va=%pK to dma=%pad\n",
-		      hw_iv_size, req->iv,
-		      areq_ctx->gen_ctx.iv_dma_addr);
+	dev_dbg(dev, "Mapped iv %u B at va=%pK to dma=%pad\n",
+		hw_iv_size, req->iv, &areq_ctx->gen_ctx.iv_dma_addr);
 	if (do_chain && areq_ctx->plaintext_authenticate_only) {  // TODO: what about CTR?? ask Ron
 		struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 		unsigned int iv_size_to_authenc = crypto_aead_ivsize(tfm);
 		unsigned int iv_ofs = GCM_BLOCK_RFC4_IV_OFFSET;
 		/* Chain to given list */
 		ssi_buffer_mgr_add_buffer_entry(
-			sg_data, areq_ctx->gen_ctx.iv_dma_addr + iv_ofs,
+			dev, sg_data,
+			areq_ctx->gen_ctx.iv_dma_addr + iv_ofs,
 			iv_size_to_authenc, is_last,
 			&areq_ctx->assoc.mlli_nents);
 		areq_ctx->assoc_buff_type = SSI_DMA_BUF_MLLI;
@@ -824,6 +805,7 @@ static inline int ssi_buffer_mgr_aead_chain_assoc(
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
 	unsigned int sg_index = 0;
 	u32 size_of_assoc = req->assoclen;
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	if (areq_ctx->is_gcm4543)
 		size_of_assoc += crypto_aead_ivsize(tfm);
@@ -837,9 +819,9 @@ static inline int ssi_buffer_mgr_aead_chain_assoc(
 		areq_ctx->assoc_buff_type = SSI_DMA_BUF_NULL;
 		areq_ctx->assoc.nents = 0;
 		areq_ctx->assoc.mlli_nents = 0;
-		SSI_LOG_DEBUG("Chain assoc of length 0: buff_type=%s nents=%u\n",
-			      GET_DMA_BUFFER_TYPE(areq_ctx->assoc_buff_type),
-			      areq_ctx->assoc.nents);
+		dev_dbg(dev, "Chain assoc of length 0: buff_type=%s nents=%u\n",
+			GET_DMA_BUFFER_TYPE(areq_ctx->assoc_buff_type),
+			areq_ctx->assoc.nents);
 		goto chain_assoc_exit;
 	}
 
@@ -853,16 +835,16 @@ static inline int ssi_buffer_mgr_aead_chain_assoc(
 			current_sg = sg_next(current_sg);
 			//if have reached the end of the sgl, then this is unexpected
 			if (!current_sg) {
-				SSI_LOG_ERR("reached end of sg list. unexpected\n");
-				BUG();
+				dev_err(dev, "reached end of sg list. unexpected\n");
+				return -EINVAL;
 			}
 			sg_index += current_sg->length;
 			mapped_nents++;
 		}
 	}
 	if (unlikely(mapped_nents > LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES)) {
-		SSI_LOG_ERR("Too many fragments. current %d max %d\n",
-			    mapped_nents, LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES);
+		dev_err(dev, "Too many fragments. current %d max %d\n",
+			mapped_nents, LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES);
 		return -ENOMEM;
 	}
 	areq_ctx->assoc.nents = mapped_nents;
@@ -873,9 +855,9 @@ static inline int ssi_buffer_mgr_aead_chain_assoc(
 	if (areq_ctx->ccm_hdr_size != ccm_header_size_null) {
 		if (unlikely((mapped_nents + 1) >
 			LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES)) {
-			SSI_LOG_ERR("CCM case.Too many fragments. Current %d max %d\n",
-				    (areq_ctx->assoc.nents + 1),
-				    LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES);
+			dev_err(dev, "CCM case.Too many fragments. Current %d max %d\n",
+				(areq_ctx->assoc.nents + 1),
+				LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES);
 			rc = -ENOMEM;
 			goto chain_assoc_exit;
 		}
@@ -889,11 +871,11 @@ static inline int ssi_buffer_mgr_aead_chain_assoc(
 
 	if (unlikely((do_chain) ||
 		     (areq_ctx->assoc_buff_type == SSI_DMA_BUF_MLLI))) {
-		SSI_LOG_DEBUG("Chain assoc: buff_type=%s nents=%u\n",
-			      GET_DMA_BUFFER_TYPE(areq_ctx->assoc_buff_type),
-			      areq_ctx->assoc.nents);
+		dev_dbg(dev, "Chain assoc: buff_type=%s nents=%u\n",
+			GET_DMA_BUFFER_TYPE(areq_ctx->assoc_buff_type),
+			areq_ctx->assoc.nents);
 		ssi_buffer_mgr_add_scatterlist_entry(
-			sg_data, areq_ctx->assoc.nents,
+			dev, sg_data, areq_ctx->assoc.nents,
 			req->src, req->assoclen, 0, is_last,
 			&areq_ctx->assoc.mlli_nents);
 		areq_ctx->assoc_buff_type = SSI_DMA_BUF_MLLI;
@@ -951,10 +933,11 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 	unsigned int authsize = areq_ctx->req_authsize;
 	int rc = 0, icv_nents;
 	struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	if (likely(req->src == req->dst)) {
 		/*INPLACE*/
-		ssi_buffer_mgr_add_scatterlist_entry(sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data,
 						     areq_ctx->src.nents,
 						     areq_ctx->src_sgl,
 						     areq_ctx->cryptlen,
@@ -962,7 +945,8 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 						     is_last_table,
 						     &areq_ctx->src.mlli_nents);
 
-		icv_nents = ssi_buffer_mgr_get_aead_icv_nents(areq_ctx->src_sgl,
+		icv_nents = ssi_buffer_mgr_get_aead_icv_nents(dev,
+							      areq_ctx->src_sgl,
 							      areq_ctx->src.nents,
 							      authsize,
 							      *src_last_bytes,
@@ -990,7 +974,8 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 						skip += crypto_aead_ivsize(tfm);
 
 					ssi_buffer_mgr_copy_scatterlist_portion(
-						areq_ctx->backup_mac, req->src,
+						dev, areq_ctx->backup_mac,
+						req->src,
 						(skip + req->cryptlen -
 						 areq_ctx->req_authsize),
 						skip + req->cryptlen,
@@ -1013,14 +998,14 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 
 	} else if (direct == DRV_CRYPTO_DIRECTION_DECRYPT) {
 		/*NON-INPLACE and DECRYPT*/
-		ssi_buffer_mgr_add_scatterlist_entry(sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data,
 						     areq_ctx->src.nents,
 						     areq_ctx->src_sgl,
 						     areq_ctx->cryptlen,
 						     areq_ctx->src_offset,
 						     is_last_table,
 						     &areq_ctx->src.mlli_nents);
-		ssi_buffer_mgr_add_scatterlist_entry(sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data,
 						     areq_ctx->dst.nents,
 						     areq_ctx->dst_sgl,
 						     areq_ctx->cryptlen,
@@ -1028,7 +1013,8 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 						     is_last_table,
 						     &areq_ctx->dst.mlli_nents);
 
-		icv_nents = ssi_buffer_mgr_get_aead_icv_nents(areq_ctx->src_sgl,
+		icv_nents = ssi_buffer_mgr_get_aead_icv_nents(dev,
+							      areq_ctx->src_sgl,
 							      areq_ctx->src.nents,
 							      authsize,
 							      *src_last_bytes,
@@ -1043,15 +1029,15 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 			 * verification is made by CPU compare in order to simplify
 			 * MAC verification upon request completion
 			 */
-			  u32 size_to_skip = req->assoclen;
+			u32 size_to_skip = req->assoclen;
 
-			  if (areq_ctx->is_gcm4543)
-				  size_to_skip += crypto_aead_ivsize(tfm);
+			if (areq_ctx->is_gcm4543)
+				size_to_skip += crypto_aead_ivsize(tfm);
 
-			  ssi_buffer_mgr_copy_scatterlist_portion(
-				  areq_ctx->backup_mac, req->src,
-				  size_to_skip + req->cryptlen - areq_ctx->req_authsize,
-				  size_to_skip + req->cryptlen, SSI_SG_TO_BUF);
+			ssi_buffer_mgr_copy_scatterlist_portion(
+				dev, areq_ctx->backup_mac, req->src,
+				size_to_skip + req->cryptlen - areq_ctx->req_authsize,
+				size_to_skip + req->cryptlen, SSI_SG_TO_BUF);
 			areq_ctx->icv_virt_addr = areq_ctx->backup_mac;
 		} else { /* Contig. ICV */
 			/*Should hanlde if the sg is not contig.*/
@@ -1065,14 +1051,14 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 
 	} else {
 		/*NON-INPLACE and ENCRYPT*/
-		ssi_buffer_mgr_add_scatterlist_entry(sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data,
 						     areq_ctx->dst.nents,
 						     areq_ctx->dst_sgl,
 						     areq_ctx->cryptlen,
 						     areq_ctx->dst_offset,
 						     is_last_table,
 						     &areq_ctx->dst.mlli_nents);
-		ssi_buffer_mgr_add_scatterlist_entry(sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, sg_data,
 						     areq_ctx->src.nents,
 						     areq_ctx->src_sgl,
 						     areq_ctx->cryptlen,
@@ -1080,7 +1066,8 @@ static inline int ssi_buffer_mgr_prepare_aead_data_mlli(
 						     is_last_table,
 						     &areq_ctx->src.mlli_nents);
 
-		icv_nents = ssi_buffer_mgr_get_aead_icv_nents(areq_ctx->dst_sgl,
+		icv_nents = ssi_buffer_mgr_get_aead_icv_nents(dev,
+							      areq_ctx->dst_sgl,
 							      areq_ctx->dst.nents,
 							      authsize,
 							      *dst_last_bytes,
@@ -1115,7 +1102,7 @@ static inline int ssi_buffer_mgr_aead_chain_data(
 	bool is_last_table, bool do_chain)
 {
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	enum drv_crypto_direction direct = areq_ctx->gen_ctx.op_type;
 	unsigned int authsize = areq_ctx->req_authsize;
 	int src_last_bytes = 0, dst_last_bytes = 0;
@@ -1134,10 +1121,9 @@ static inline int ssi_buffer_mgr_aead_chain_data(
 
 	offset = size_to_skip;
 
-	if (!sg_data) {
-		rc = -EINVAL;
-		goto chain_data_exit;
-	}
+	if (!sg_data)
+		return -EINVAL;
+
 	areq_ctx->src_sgl = req->src;
 	areq_ctx->dst_sgl = req->dst;
 
@@ -1145,7 +1131,10 @@ static inline int ssi_buffer_mgr_aead_chain_data(
 		size_for_map += crypto_aead_ivsize(tfm);
 
 	size_for_map += (direct == DRV_CRYPTO_DIRECTION_ENCRYPT) ? authsize : 0;
-	src_mapped_nents = ssi_buffer_mgr_get_sgl_nents(req->src, size_for_map, &src_last_bytes, &chained);
+	src_mapped_nents = ssi_buffer_mgr_get_sgl_nents(dev, req->src,
+							size_for_map,
+							&src_last_bytes,
+							&chained);
 	sg_index = areq_ctx->src_sgl->length;
 	//check where the data starts
 	while (sg_index <= size_to_skip) {
@@ -1153,15 +1142,15 @@ static inline int ssi_buffer_mgr_aead_chain_data(
 		areq_ctx->src_sgl = sg_next(areq_ctx->src_sgl);
 		//if have reached the end of the sgl, then this is unexpected
 		if (!areq_ctx->src_sgl) {
-			SSI_LOG_ERR("reached end of sg list. unexpected\n");
-			BUG();
+			dev_err(dev, "reached end of sg list. unexpected\n");
+			return -EINVAL;
 		}
 		sg_index += areq_ctx->src_sgl->length;
 		src_mapped_nents--;
 	}
 	if (unlikely(src_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES)) {
-		SSI_LOG_ERR("Too many fragments. current %d max %d\n",
-			    src_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES);
+		dev_err(dev, "Too many fragments. current %d max %d\n",
+			src_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES);
 			return -ENOMEM;
 	}
 
@@ -1187,7 +1176,10 @@ static inline int ssi_buffer_mgr_aead_chain_data(
 		}
 	}
 
-	dst_mapped_nents = ssi_buffer_mgr_get_sgl_nents(req->dst, size_for_map, &dst_last_bytes, &chained);
+	dst_mapped_nents = ssi_buffer_mgr_get_sgl_nents(dev, req->dst,
+							size_for_map,
+							&dst_last_bytes,
+							&chained);
 	sg_index = areq_ctx->dst_sgl->length;
 	offset = size_to_skip;
 
@@ -1197,15 +1189,15 @@ static inline int ssi_buffer_mgr_aead_chain_data(
 		areq_ctx->dst_sgl = sg_next(areq_ctx->dst_sgl);
 		//if have reached the end of the sgl, then this is unexpected
 		if (!areq_ctx->dst_sgl) {
-			SSI_LOG_ERR("reached end of sg list. unexpected\n");
-			BUG();
+			dev_err(dev, "reached end of sg list. unexpected\n");
+			return -EINVAL;
 		}
 		sg_index += areq_ctx->dst_sgl->length;
 		dst_mapped_nents--;
 	}
 	if (unlikely(dst_mapped_nents > LLI_MAX_NUM_OF_DATA_ENTRIES)) {
-		SSI_LOG_ERR("Too many fragments. current %d max %d\n",
-			    dst_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES);
+		dev_err(dev, "Too many fragments. current %d max %d\n",
+			dst_mapped_nents, LLI_MAX_NUM_OF_DATA_ENTRIES);
 		return -ENOMEM;
 	}
 	areq_ctx->dst.nents = dst_mapped_nents;
@@ -1285,7 +1277,7 @@ int ssi_buffer_mgr_map_aead_request(
 {
 	struct aead_req_ctx *areq_ctx = aead_request_ctx(req);
 	struct mlli_params *mlli_params = &areq_ctx->mlli_params;
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	struct buffer_array sg_data;
 	unsigned int authsize = areq_ctx->req_authsize;
 	struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
@@ -1312,7 +1304,7 @@ int ssi_buffer_mgr_map_aead_request(
 		 * data memory overriding that caused by cache coherence problem.
 		 */
 		ssi_buffer_mgr_copy_scatterlist_portion(
-			areq_ctx->backup_mac, req->src,
+			dev, areq_ctx->backup_mac, req->src,
 			size_to_skip + req->cryptlen - areq_ctx->req_authsize,
 			size_to_skip + req->cryptlen, SSI_SG_TO_BUF);
 	}
@@ -1327,8 +1319,8 @@ int ssi_buffer_mgr_map_aead_request(
 						    MAX_MAC_SIZE,
 						    DMA_BIDIRECTIONAL);
 	if (unlikely(dma_mapping_error(dev, areq_ctx->mac_buf_dma_addr))) {
-		SSI_LOG_ERR("Mapping mac_buf %u B at va=%pK for DMA failed\n",
-			    MAX_MAC_SIZE, areq_ctx->mac_buf);
+		dev_err(dev, "Mapping mac_buf %u B at va=%pK for DMA failed\n",
+			MAX_MAC_SIZE, areq_ctx->mac_buf);
 		rc = -ENOMEM;
 		goto aead_map_failure;
 	}
@@ -1340,9 +1332,10 @@ int ssi_buffer_mgr_map_aead_request(
 							    DMA_TO_DEVICE);
 
 		if (unlikely(dma_mapping_error(dev, areq_ctx->ccm_iv0_dma_addr))) {
-			SSI_LOG_ERR("Mapping mac_buf %u B at va=%pK "
-			"for DMA failed\n", AES_BLOCK_SIZE,
-			(areq_ctx->ccm_config + CCM_CTR_COUNT_0_OFFSET));
+			dev_err(dev, "Mapping mac_buf %u B at va=%pK for DMA failed\n",
+				AES_BLOCK_SIZE,
+				(areq_ctx->ccm_config +
+				 CCM_CTR_COUNT_0_OFFSET));
 			areq_ctx->ccm_iv0_dma_addr = 0;
 			rc = -ENOMEM;
 			goto aead_map_failure;
@@ -1362,8 +1355,8 @@ int ssi_buffer_mgr_map_aead_request(
 							 AES_BLOCK_SIZE,
 							 DMA_BIDIRECTIONAL);
 		if (unlikely(dma_mapping_error(dev, areq_ctx->hkey_dma_addr))) {
-			SSI_LOG_ERR("Mapping hkey %u B at va=%pK for DMA failed\n",
-				    AES_BLOCK_SIZE, areq_ctx->hkey);
+			dev_err(dev, "Mapping hkey %u B at va=%pK for DMA failed\n",
+				AES_BLOCK_SIZE, areq_ctx->hkey);
 			rc = -ENOMEM;
 			goto aead_map_failure;
 		}
@@ -1373,8 +1366,8 @@ int ssi_buffer_mgr_map_aead_request(
 								  AES_BLOCK_SIZE,
 								  DMA_TO_DEVICE);
 		if (unlikely(dma_mapping_error(dev, areq_ctx->gcm_block_len_dma_addr))) {
-			SSI_LOG_ERR("Mapping gcm_len_block %u B at va=%pK for DMA failed\n",
-				    AES_BLOCK_SIZE, &areq_ctx->gcm_len_block);
+			dev_err(dev, "Mapping gcm_len_block %u B at va=%pK for DMA failed\n",
+				AES_BLOCK_SIZE, &areq_ctx->gcm_len_block);
 			rc = -ENOMEM;
 			goto aead_map_failure;
 		}
@@ -1385,9 +1378,8 @@ int ssi_buffer_mgr_map_aead_request(
 								DMA_TO_DEVICE);
 
 		if (unlikely(dma_mapping_error(dev, areq_ctx->gcm_iv_inc1_dma_addr))) {
-			SSI_LOG_ERR("Mapping gcm_iv_inc1 %u B at va=%pK "
-			"for DMA failed\n", AES_BLOCK_SIZE,
-			(areq_ctx->gcm_iv_inc1));
+			dev_err(dev, "Mapping gcm_iv_inc1 %u B at va=%pK for DMA failed\n",
+				AES_BLOCK_SIZE, (areq_ctx->gcm_iv_inc1));
 			areq_ctx->gcm_iv_inc1_dma_addr = 0;
 			rc = -ENOMEM;
 			goto aead_map_failure;
@@ -1399,9 +1391,8 @@ int ssi_buffer_mgr_map_aead_request(
 								DMA_TO_DEVICE);
 
 		if (unlikely(dma_mapping_error(dev, areq_ctx->gcm_iv_inc2_dma_addr))) {
-			SSI_LOG_ERR("Mapping gcm_iv_inc2 %u B at va=%pK "
-			"for DMA failed\n", AES_BLOCK_SIZE,
-			(areq_ctx->gcm_iv_inc2));
+			dev_err(dev, "Mapping gcm_iv_inc2 %u B at va=%pK for DMA failed\n",
+				AES_BLOCK_SIZE, (areq_ctx->gcm_iv_inc2));
 			areq_ctx->gcm_iv_inc2_dma_addr = 0;
 			rc = -ENOMEM;
 			goto aead_map_failure;
@@ -1481,9 +1472,10 @@ int ssi_buffer_mgr_map_aead_request(
 			goto aead_map_failure;
 
 		ssi_buffer_mgr_update_aead_mlli_nents(drvdata, req);
-		SSI_LOG_DEBUG("assoc params mn %d\n", areq_ctx->assoc.mlli_nents);
-		SSI_LOG_DEBUG("src params mn %d\n", areq_ctx->src.mlli_nents);
-		SSI_LOG_DEBUG("dst params mn %d\n", areq_ctx->dst.mlli_nents);
+		dev_dbg(dev, "assoc params mn %d\n",
+			areq_ctx->assoc.mlli_nents);
+		dev_dbg(dev, "src params mn %d\n", areq_ctx->src.mlli_nents);
+		dev_dbg(dev, "dst params mn %d\n", areq_ctx->dst.mlli_nents);
 	}
 	return 0;
 
@@ -1496,7 +1488,7 @@ int ssi_buffer_mgr_map_hash_request_final(
 	struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, bool do_update)
 {
 	struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx;
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	u8 *curr_buff = areq_ctx->buff_index ? areq_ctx->buff1 :
 			areq_ctx->buff0;
 	u32 *curr_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff1_cnt :
@@ -1507,11 +1499,8 @@ int ssi_buffer_mgr_map_hash_request_final(
 	u32 dummy = 0;
 	u32 mapped_nents = 0;
 
-	SSI_LOG_DEBUG(" final params : curr_buff=%pK "
-		     "curr_buff_cnt=0x%X nbytes = 0x%X "
-		     "src=%pK curr_index=%u\n",
-		     curr_buff, *curr_buff_cnt, nbytes,
-		     src, areq_ctx->buff_index);
+	dev_dbg(dev, "final params : curr_buff=%pK curr_buff_cnt=0x%X nbytes = 0x%X src=%pK curr_index=%u\n",
+		curr_buff, *curr_buff_cnt, nbytes, src, areq_ctx->buff_index);
 	/* Init the type of the dma buffer */
 	areq_ctx->data_dma_buf_type = SSI_DMA_BUF_NULL;
 	mlli_params->curr_pool = NULL;
@@ -1557,7 +1546,7 @@ int ssi_buffer_mgr_map_hash_request_final(
 	if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) {
 		mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
 		/* add the src data to the sg_data */
-		ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data,
 						     areq_ctx->in_nents,
 						     src, nbytes, 0, true,
 						     &areq_ctx->mlli_nents);
@@ -1568,8 +1557,8 @@ int ssi_buffer_mgr_map_hash_request_final(
 	}
 	/* change the buffer index for the unmap function */
 	areq_ctx->buff_index = (areq_ctx->buff_index ^ 1);
-	SSI_LOG_DEBUG("areq_ctx->data_dma_buf_type = %s\n",
-		      GET_DMA_BUFFER_TYPE(areq_ctx->data_dma_buf_type));
+	dev_dbg(dev, "areq_ctx->data_dma_buf_type = %s\n",
+		GET_DMA_BUFFER_TYPE(areq_ctx->data_dma_buf_type));
 	return 0;
 
 fail_unmap_din:
@@ -1586,7 +1575,7 @@ int ssi_buffer_mgr_map_hash_request_update(
 	struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, unsigned int block_size)
 {
 	struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx;
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	u8 *curr_buff = areq_ctx->buff_index ? areq_ctx->buff1 :
 			areq_ctx->buff0;
 	u32 *curr_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff1_cnt :
@@ -1604,11 +1593,8 @@ int ssi_buffer_mgr_map_hash_request_update(
 	u32 dummy = 0;
 	u32 mapped_nents = 0;
 
-	SSI_LOG_DEBUG(" update params : curr_buff=%pK "
-		     "curr_buff_cnt=0x%X nbytes=0x%X "
-		     "src=%pK curr_index=%u\n",
-		     curr_buff, *curr_buff_cnt, nbytes,
-		     src, areq_ctx->buff_index);
+	dev_dbg(dev, " update params : curr_buff=%pK curr_buff_cnt=0x%X nbytes=0x%X src=%pK curr_index=%u\n",
+		curr_buff, *curr_buff_cnt, nbytes, src, areq_ctx->buff_index);
 	/* Init the type of the dma buffer */
 	areq_ctx->data_dma_buf_type = SSI_DMA_BUF_NULL;
 	mlli_params->curr_pool = NULL;
@@ -1617,14 +1603,11 @@ int ssi_buffer_mgr_map_hash_request_update(
 	areq_ctx->in_nents = 0;
 
 	if (unlikely(total_in_len < block_size)) {
-		SSI_LOG_DEBUG(" less than one block: curr_buff=%pK "
-			     "*curr_buff_cnt=0x%X copy_to=%pK\n",
-			curr_buff, *curr_buff_cnt,
-			&curr_buff[*curr_buff_cnt]);
+		dev_dbg(dev, " less than one block: curr_buff=%pK *curr_buff_cnt=0x%X copy_to=%pK\n",
+			curr_buff, *curr_buff_cnt, &curr_buff[*curr_buff_cnt]);
 		areq_ctx->in_nents =
-			ssi_buffer_mgr_get_sgl_nents(src,
-						     nbytes,
-						     &dummy, NULL);
+			ssi_buffer_mgr_get_sgl_nents(dev, src, nbytes, &dummy,
+						     NULL);
 		sg_copy_to_buffer(src, areq_ctx->in_nents,
 				  &curr_buff[*curr_buff_cnt], nbytes);
 		*curr_buff_cnt += nbytes;
@@ -1636,17 +1619,15 @@ int ssi_buffer_mgr_map_hash_request_update(
 	/* update data len */
 	update_data_len = total_in_len - *next_buff_cnt;
 
-	SSI_LOG_DEBUG(" temp length : *next_buff_cnt=0x%X "
-		     "update_data_len=0x%X\n",
+	dev_dbg(dev, " temp length : *next_buff_cnt=0x%X update_data_len=0x%X\n",
 		*next_buff_cnt, update_data_len);
 
 	/* Copy the new residue to next buffer */
 	if (*next_buff_cnt != 0) {
-		SSI_LOG_DEBUG(" handle residue: next buff %pK skip data %u"
-			     " residue %u\n", next_buff,
-			     (update_data_len - *curr_buff_cnt),
-			     *next_buff_cnt);
-		ssi_buffer_mgr_copy_scatterlist_portion(next_buff, src,
+		dev_dbg(dev, " handle residue: next buff %pK skip data %u residue %u\n",
+			next_buff, (update_data_len - *curr_buff_cnt),
+			*next_buff_cnt);
+		ssi_buffer_mgr_copy_scatterlist_portion(dev, next_buff, src,
 							(update_data_len - *curr_buff_cnt),
 							nbytes, SSI_SG_TO_BUF);
 		/* change the buffer index for next operation */
@@ -1688,7 +1669,7 @@ int ssi_buffer_mgr_map_hash_request_update(
 	if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) {
 		mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
 		/* add the src data to the sg_data */
-		ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+		ssi_buffer_mgr_add_scatterlist_entry(dev, &sg_data,
 						     areq_ctx->in_nents,
 						     src,
 						     (update_data_len - *curr_buff_cnt),
@@ -1725,29 +1706,26 @@ void ssi_buffer_mgr_unmap_hash_request(
 	 *allocated and should be released
 	 */
 	if (areq_ctx->mlli_params.curr_pool) {
-		SSI_LOG_DEBUG("free MLLI buffer: dma=%pad virt=%pK\n",
-			      areq_ctx->mlli_params.mlli_dma_addr,
-			      areq_ctx->mlli_params.mlli_virt_addr);
+		dev_dbg(dev, "free MLLI buffer: dma=%pad virt=%pK\n",
+			&areq_ctx->mlli_params.mlli_dma_addr,
+			areq_ctx->mlli_params.mlli_virt_addr);
 		dma_pool_free(areq_ctx->mlli_params.curr_pool,
 			      areq_ctx->mlli_params.mlli_virt_addr,
 			      areq_ctx->mlli_params.mlli_dma_addr);
 	}
 
 	if ((src) && likely(areq_ctx->in_nents != 0)) {
-		SSI_LOG_DEBUG("Unmapped sg src: virt=%pK dma=%pad len=0x%X\n",
-			      sg_virt(src),
-			      sg_dma_address(src),
-			      sg_dma_len(src));
+		dev_dbg(dev, "Unmapped sg src: virt=%pK dma=%pad len=0x%X\n",
+			sg_virt(src), &sg_dma_address(src), sg_dma_len(src));
 		dma_unmap_sg(dev, src,
 			     areq_ctx->in_nents, DMA_TO_DEVICE);
 	}
 
 	if (*prev_len != 0) {
-		SSI_LOG_DEBUG("Unmapped buffer: areq_ctx->buff_sg=%pK"
-			     " dma=%pad len 0x%X\n",
-				sg_virt(areq_ctx->buff_sg),
-				sg_dma_address(areq_ctx->buff_sg),
-				sg_dma_len(areq_ctx->buff_sg));
+		dev_dbg(dev, "Unmapped buffer: areq_ctx->buff_sg=%pK dma=%pad len 0x%X\n",
+			sg_virt(areq_ctx->buff_sg),
+			&sg_dma_address(areq_ctx->buff_sg),
+			sg_dma_len(areq_ctx->buff_sg));
 		dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE);
 		if (!do_revert) {
 			/* clean the previous data length for update operation */
@@ -1761,7 +1739,7 @@ void ssi_buffer_mgr_unmap_hash_request(
 int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata)
 {
 	struct buff_mgr_handle *buff_mgr_handle;
-	struct device *dev = &drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	buff_mgr_handle = kmalloc(sizeof(*buff_mgr_handle), GFP_KERNEL);
 	if (!buff_mgr_handle)
diff --git a/drivers/staging/ccree/ssi_buffer_mgr.h b/drivers/staging/ccree/ssi_buffer_mgr.h
index 41f5223730f8..1032f25edcab 100644
--- a/drivers/staging/ccree/ssi_buffer_mgr.h
+++ b/drivers/staging/ccree/ssi_buffer_mgr.h
@@ -80,7 +80,10 @@ int ssi_buffer_mgr_map_hash_request_update(struct ssi_drvdata *drvdata, void *ct
 
 void ssi_buffer_mgr_unmap_hash_request(struct device *dev, void *ctx, struct scatterlist *src, bool do_revert);
 
-void ssi_buffer_mgr_copy_scatterlist_portion(u8 *dest, struct scatterlist *sg, u32 to_skip, u32 end, enum ssi_sg_cpy_direct direct);
+void ssi_buffer_mgr_copy_scatterlist_portion(struct device *dev, u8 *dest,
+					     struct scatterlist *sg,
+					     u32 to_skip, u32 end,
+					     enum ssi_sg_cpy_direct direct);
 
 void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, u32 data_len);
 
diff --git a/drivers/staging/ccree/ssi_cipher.c b/drivers/staging/ccree/ssi_cipher.c
index 8d31a93fd8b7..ee85cbf7c9ae 100644
--- a/drivers/staging/ccree/ssi_cipher.c
+++ b/drivers/staging/ccree/ssi_cipher.c
@@ -181,45 +181,42 @@ static int ssi_blkcipher_init(struct crypto_tfm *tfm)
 	struct crypto_alg *alg = tfm->__crt_alg;
 	struct ssi_crypto_alg *ssi_alg =
 			container_of(alg, struct ssi_crypto_alg, crypto_alg);
-	struct device *dev;
+	struct device *dev = drvdata_to_dev(ssi_alg->drvdata);
 	int rc = 0;
 	unsigned int max_key_buf_size = get_max_keysize(tfm);
 
-	SSI_LOG_DEBUG("Initializing context @%p for %s\n",
-		      ctx_p, crypto_tfm_alg_name(tfm));
+	dev_dbg(dev, "Initializing context @%p for %s\n", ctx_p,
+		crypto_tfm_alg_name(tfm));
 
 	ctx_p->cipher_mode = ssi_alg->cipher_mode;
 	ctx_p->flow_mode = ssi_alg->flow_mode;
 	ctx_p->drvdata = ssi_alg->drvdata;
-	dev = &ctx_p->drvdata->plat_dev->dev;
 
 	/* Allocate key buffer, cache line aligned */
 	ctx_p->user.key = kmalloc(max_key_buf_size, GFP_KERNEL | GFP_DMA);
-	if (!ctx_p->user.key) {
-		SSI_LOG_ERR("Allocating key buffer in context failed\n");
-		rc = -ENOMEM;
-	}
-	SSI_LOG_DEBUG("Allocated key buffer in context. key=@%p\n",
-		      ctx_p->user.key);
+	if (!ctx_p->user.key)
+		return -ENOMEM;
+
+	dev_dbg(dev, "Allocated key buffer in context. key=@%p\n",
+		ctx_p->user.key);
 
 	/* Map key buffer */
 	ctx_p->user.key_dma_addr = dma_map_single(dev, (void *)ctx_p->user.key,
 						  max_key_buf_size,
 						  DMA_TO_DEVICE);
 	if (dma_mapping_error(dev, ctx_p->user.key_dma_addr)) {
-		SSI_LOG_ERR("Mapping Key %u B at va=%pK for DMA failed\n",
-			    max_key_buf_size, ctx_p->user.key);
+		dev_err(dev, "Mapping Key %u B at va=%pK for DMA failed\n",
+			max_key_buf_size, ctx_p->user.key);
 		return -ENOMEM;
 	}
-	SSI_LOG_DEBUG("Mapped key %u B at va=%pK to dma=%pad\n",
-		      max_key_buf_size, ctx_p->user.key,
-		      ctx_p->user.key_dma_addr);
+	dev_dbg(dev, "Mapped key %u B at va=%pK to dma=%pad\n",
+		max_key_buf_size, ctx_p->user.key, &ctx_p->user.key_dma_addr);
 
 	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
 		/* Alloc hash tfm for essiv */
 		ctx_p->shash_tfm = crypto_alloc_shash("sha256-generic", 0, 0);
 		if (IS_ERR(ctx_p->shash_tfm)) {
-			SSI_LOG_ERR("Error allocating hash tfm for ESSIV.\n");
+			dev_err(dev, "Error allocating hash tfm for ESSIV.\n");
 			return PTR_ERR(ctx_p->shash_tfm);
 		}
 	}
@@ -230,11 +227,11 @@ static int ssi_blkcipher_init(struct crypto_tfm *tfm)
 static void ssi_blkcipher_exit(struct crypto_tfm *tfm)
 {
 	struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-	struct device *dev = &ctx_p->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 	unsigned int max_key_buf_size = get_max_keysize(tfm);
 
-	SSI_LOG_DEBUG("Clearing context @%p for %s\n",
-		      crypto_tfm_ctx(tfm), crypto_tfm_alg_name(tfm));
+	dev_dbg(dev, "Clearing context @%p for %s\n",
+		crypto_tfm_ctx(tfm), crypto_tfm_alg_name(tfm));
 
 	if (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) {
 		/* Free hash tfm for essiv */
@@ -245,12 +242,12 @@ static void ssi_blkcipher_exit(struct crypto_tfm *tfm)
 	/* Unmap key buffer */
 	dma_unmap_single(dev, ctx_p->user.key_dma_addr, max_key_buf_size,
 			 DMA_TO_DEVICE);
-	SSI_LOG_DEBUG("Unmapped key buffer key_dma_addr=%pad\n",
-		      ctx_p->user.key_dma_addr);
+	dev_dbg(dev, "Unmapped key buffer key_dma_addr=%pad\n",
+		&ctx_p->user.key_dma_addr);
 
 	/* Free key buffer in context */
 	kfree(ctx_p->user.key);
-	SSI_LOG_DEBUG("Free key buffer in context. key=@%p\n", ctx_p->user.key);
+	dev_dbg(dev, "Free key buffer in context. key=@%p\n", ctx_p->user.key);
 }
 
 struct tdes_keys {
@@ -298,16 +295,14 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 				unsigned int keylen)
 {
 	struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-	struct device *dev = &ctx_p->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 	u32 tmp[DES_EXPKEY_WORDS];
 	unsigned int max_key_buf_size = get_max_keysize(tfm);
 
-	SSI_LOG_DEBUG("Setting key in context @%p for %s. keylen=%u\n",
-		      ctx_p, crypto_tfm_alg_name(tfm), keylen);
+	dev_dbg(dev, "Setting key in context @%p for %s. keylen=%u\n",
+		ctx_p, crypto_tfm_alg_name(tfm), keylen);
 	dump_byte_array("key", (u8 *)key, keylen);
 
-	SSI_LOG_DEBUG("after FIPS check");
-
 	/* STAT_PHASE_0: Init and sanity checks */
 
 #if SSI_CC_HAS_MULTI2
@@ -317,7 +312,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 #endif /*SSI_CC_HAS_MULTI2*/
 
 	if (unlikely(validate_keys_sizes(ctx_p, keylen) != 0)) {
-		SSI_LOG_ERR("Unsupported key size %d.\n", keylen);
+		dev_err(dev, "Unsupported key size %d.\n", keylen);
 		crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
 		return -EINVAL;
 	}
@@ -327,13 +322,14 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 		struct arm_hw_key_info *hki = (struct arm_hw_key_info *)key;
 
 		if (unlikely(ctx_p->flow_mode != S_DIN_to_AES)) {
-			SSI_LOG_ERR("HW key not supported for non-AES flows\n");
+			dev_err(dev, "HW key not supported for non-AES flows\n");
 			return -EINVAL;
 		}
 
 		ctx_p->hw.key1_slot = hw_key_to_cc_hw_key(hki->hw_key1);
 		if (unlikely(ctx_p->hw.key1_slot == END_OF_KEYS)) {
-			SSI_LOG_ERR("Unsupported hw key1 number (%d)\n", hki->hw_key1);
+			dev_err(dev, "Unsupported hw key1 number (%d)\n",
+				hki->hw_key1);
 			return -EINVAL;
 		}
 
@@ -341,18 +337,20 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 		    (ctx_p->cipher_mode == DRV_CIPHER_ESSIV) ||
 		    (ctx_p->cipher_mode == DRV_CIPHER_BITLOCKER)) {
 			if (unlikely(hki->hw_key1 == hki->hw_key2)) {
-				SSI_LOG_ERR("Illegal hw key numbers (%d,%d)\n", hki->hw_key1, hki->hw_key2);
+				dev_err(dev, "Illegal hw key numbers (%d,%d)\n",
+					hki->hw_key1, hki->hw_key2);
 				return -EINVAL;
 			}
 			ctx_p->hw.key2_slot = hw_key_to_cc_hw_key(hki->hw_key2);
 			if (unlikely(ctx_p->hw.key2_slot == END_OF_KEYS)) {
-				SSI_LOG_ERR("Unsupported hw key2 number (%d)\n", hki->hw_key2);
+				dev_err(dev, "Unsupported hw key2 number (%d)\n",
+					hki->hw_key2);
 				return -EINVAL;
 			}
 		}
 
 		ctx_p->keylen = keylen;
-		SSI_LOG_DEBUG("ssi_is_hw_key ret 0");
+		dev_dbg(dev, "ssi_is_hw_key ret 0");
 
 		return 0;
 	}
@@ -362,19 +360,19 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 		if (unlikely(!des_ekey(tmp, key)) &&
 		    (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_WEAK_KEY)) {
 			tfm->crt_flags |= CRYPTO_TFM_RES_WEAK_KEY;
-			SSI_LOG_DEBUG("weak DES key");
+			dev_dbg(dev, "weak DES key");
 			return -EINVAL;
 		}
 	}
 	if ((ctx_p->cipher_mode == DRV_CIPHER_XTS) &&
 	    xts_check_key(tfm, key, keylen) != 0) {
-		SSI_LOG_DEBUG("weak XTS key");
+		dev_dbg(dev, "weak XTS key");
 		return -EINVAL;
 	}
 	if ((ctx_p->flow_mode == S_DIN_to_DES) &&
 	    (keylen == DES3_EDE_KEY_SIZE) &&
 	    ssi_verify_3des_keys(key, keylen) != 0) {
-		SSI_LOG_DEBUG("weak 3DES key");
+		dev_dbg(dev, "weak 3DES key");
 		return -EINVAL;
 	}
 
@@ -389,7 +387,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 		if (ctx_p->key_round_number < CC_MULTI2_MIN_NUM_ROUNDS ||
 		    ctx_p->key_round_number > CC_MULTI2_MAX_NUM_ROUNDS) {
 			crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
-			SSI_LOG_DEBUG("SSI_CC_HAS_MULTI2 einval");
+			dev_dbg(dev, "SSI_CC_HAS_MULTI2 einval");
 			return -EINVAL;
 #endif /*SSI_CC_HAS_MULTI2*/
 	} else {
@@ -407,7 +405,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 
 			err = crypto_shash_digest(desc, ctx_p->user.key, key_len, ctx_p->user.key + key_len);
 			if (err) {
-				SSI_LOG_ERR("Failed to hash ESSIV key.\n");
+				dev_err(dev, "Failed to hash ESSIV key.\n");
 				return err;
 			}
 		}
@@ -416,7 +414,7 @@ static int ssi_blkcipher_setkey(struct crypto_tfm *tfm,
 				   max_key_buf_size, DMA_TO_DEVICE);
 	ctx_p->keylen = keylen;
 
-	 SSI_LOG_DEBUG("return safely");
+	 dev_dbg(dev, "return safely");
 	return 0;
 }
 
@@ -430,6 +428,7 @@ ssi_blkcipher_create_setup_desc(
 	unsigned int *seq_size)
 {
 	struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 	int cipher_mode = ctx_p->cipher_mode;
 	int flow_mode = ctx_p->flow_mode;
 	int direction = req_ctx->gen_ctx.op_type;
@@ -540,8 +539,7 @@ ssi_blkcipher_create_setup_desc(
 		(*seq_size)++;
 		break;
 	default:
-		SSI_LOG_ERR("Unsupported cipher mode (%d)\n", cipher_mode);
-		BUG();
+		dev_err(dev, "Unsupported cipher mode (%d)\n", cipher_mode);
 	}
 }
 
@@ -601,6 +599,7 @@ ssi_blkcipher_create_data_desc(
 	unsigned int *seq_size)
 {
 	struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 	unsigned int flow_mode = ctx_p->flow_mode;
 
 	switch (ctx_p->flow_mode) {
@@ -616,15 +615,15 @@ ssi_blkcipher_create_data_desc(
 		break;
 #endif /*SSI_CC_HAS_MULTI2*/
 	default:
-		SSI_LOG_ERR("invalid flow mode, flow_mode = %d\n", flow_mode);
+		dev_err(dev, "invalid flow mode, flow_mode = %d\n", flow_mode);
 		return;
 	}
 	/* Process */
 	if (likely(req_ctx->dma_buf_type == SSI_DMA_BUF_DLLI)) {
-		SSI_LOG_DEBUG(" data params addr %pad length 0x%X\n",
-			      sg_dma_address(src), nbytes);
-		SSI_LOG_DEBUG(" data params addr %pad length 0x%X\n",
-			      sg_dma_address(dst), nbytes);
+		dev_dbg(dev, " data params addr %pad length 0x%X\n",
+			&sg_dma_address(src), nbytes);
+		dev_dbg(dev, " data params addr %pad length 0x%X\n",
+			&sg_dma_address(dst), nbytes);
 		hw_desc_init(&desc[*seq_size]);
 		set_din_type(&desc[*seq_size], DMA_DLLI, sg_dma_address(src),
 			     nbytes, NS_BIT);
@@ -637,9 +636,8 @@ ssi_blkcipher_create_data_desc(
 		(*seq_size)++;
 	} else {
 		/* bypass */
-		SSI_LOG_DEBUG(" bypass params addr %pad "
-			     "length 0x%X addr 0x%08X\n",
-			req_ctx->mlli_params.mlli_dma_addr,
+		dev_dbg(dev, " bypass params addr %pad length 0x%X addr 0x%08X\n",
+			&req_ctx->mlli_params.mlli_dma_addr,
 			req_ctx->mlli_params.mlli_len,
 			(unsigned int)ctx_p->drvdata->mlli_sram_addr);
 		hw_desc_init(&desc[*seq_size]);
@@ -657,21 +655,18 @@ ssi_blkcipher_create_data_desc(
 			     ctx_p->drvdata->mlli_sram_addr,
 			     req_ctx->in_mlli_nents, NS_BIT);
 		if (req_ctx->out_nents == 0) {
-			SSI_LOG_DEBUG(" din/dout params addr 0x%08X "
-				     "addr 0x%08X\n",
-			(unsigned int)ctx_p->drvdata->mlli_sram_addr,
-			(unsigned int)ctx_p->drvdata->mlli_sram_addr);
+			dev_dbg(dev, " din/dout params addr 0x%08X addr 0x%08X\n",
+				(unsigned int)ctx_p->drvdata->mlli_sram_addr,
+				(unsigned int)ctx_p->drvdata->mlli_sram_addr);
 			set_dout_mlli(&desc[*seq_size],
 				      ctx_p->drvdata->mlli_sram_addr,
 				      req_ctx->in_mlli_nents, NS_BIT,
 				      (!areq ? 0 : 1));
 		} else {
-			SSI_LOG_DEBUG(" din/dout params "
-				     "addr 0x%08X addr 0x%08X\n",
+			dev_dbg(dev, " din/dout params addr 0x%08X addr 0x%08X\n",
 				(unsigned int)ctx_p->drvdata->mlli_sram_addr,
 				(unsigned int)ctx_p->drvdata->mlli_sram_addr +
-				(u32)LLI_ENTRY_BYTE_SIZE *
-							req_ctx->in_nents);
+				(u32)LLI_ENTRY_BYTE_SIZE * req_ctx->in_nents);
 			set_dout_mlli(&desc[*seq_size],
 				      (ctx_p->drvdata->mlli_sram_addr +
 				       (LLI_ENTRY_BYTE_SIZE *
@@ -697,16 +692,10 @@ static int ssi_blkcipher_complete(struct device *dev,
 				  void __iomem *cc_base)
 {
 	int completion_error = 0;
-	u32 inflight_counter;
 	struct ablkcipher_request *req = (struct ablkcipher_request *)areq;
 
 	ssi_buffer_mgr_unmap_blkcipher_request(dev, req_ctx, ivsize, src, dst);
-
-	/*Set the inflight couter value to local variable*/
-	inflight_counter =  ctx_p->drvdata->inflight_counter;
-	/*Decrease the inflight counter*/
-	if (ctx_p->flow_mode == BYPASS && ctx_p->drvdata->inflight_counter > 0)
-		ctx_p->drvdata->inflight_counter--;
+	kfree(req_ctx->iv);
 
 	if (areq) {
 		/*
@@ -742,20 +731,20 @@ static int ssi_blkcipher_process(
 	enum drv_crypto_direction direction)
 {
 	struct ssi_ablkcipher_ctx *ctx_p = crypto_tfm_ctx(tfm);
-	struct device *dev = &ctx_p->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx_p->drvdata);
 	struct cc_hw_desc desc[MAX_ABLKCIPHER_SEQ_LEN];
 	struct ssi_crypto_req ssi_req = {};
 	int rc, seq_len = 0, cts_restore_flag = 0;
 
-	SSI_LOG_DEBUG("%s areq=%p info=%p nbytes=%d\n",
-		      ((direction == DRV_CRYPTO_DIRECTION_ENCRYPT) ? "Encrypt" : "Decrypt"),
-		      areq, info, nbytes);
+	dev_dbg(dev, "%s areq=%p info=%p nbytes=%d\n",
+		((direction == DRV_CRYPTO_DIRECTION_ENCRYPT) ?
+		"Encrypt" : "Decrypt"), areq, info, nbytes);
 
 	/* STAT_PHASE_0: Init and sanity checks */
 
 	/* TODO: check data length according to mode */
 	if (unlikely(validate_data_size(ctx_p, nbytes))) {
-		SSI_LOG_ERR("Unsupported data size %d.\n", nbytes);
+		dev_err(dev, "Unsupported data size %d.\n", nbytes);
 		crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_BLOCK_LEN);
 		rc = -EINVAL;
 		goto exit_process;
@@ -765,6 +754,17 @@ static int ssi_blkcipher_process(
 		rc = 0;
 		goto exit_process;
 	}
+
+	/* The IV we are handed may be allocted from the stack so
+	 * we must copy it to a DMAable buffer before use.
+	 */
+	req_ctx->iv = kmalloc(ivsize, GFP_KERNEL);
+	if (!req_ctx->iv) {
+		rc = -ENOMEM;
+		goto exit_process;
+	}
+	memcpy(req_ctx->iv, info, ivsize);
+
 	/*For CTS in case of data size aligned to 16 use CBC mode*/
 	if (((nbytes % AES_BLOCK_SIZE) == 0) && (ctx_p->cipher_mode == DRV_CIPHER_CBC_CTS)) {
 		ctx_p->cipher_mode = DRV_CIPHER_CBC;
@@ -786,9 +786,11 @@ static int ssi_blkcipher_process(
 
 	/* STAT_PHASE_1: Map buffers */
 
-	rc = ssi_buffer_mgr_map_blkcipher_request(ctx_p->drvdata, req_ctx, ivsize, nbytes, info, src, dst);
+	rc = ssi_buffer_mgr_map_blkcipher_request(ctx_p->drvdata, req_ctx,
+						  ivsize, nbytes, req_ctx->iv,
+						  src, dst);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("map_request() failed\n");
+		dev_err(dev, "map_request() failed\n");
 		goto exit_process;
 	}
 
@@ -838,8 +840,10 @@ exit_process:
 	if (cts_restore_flag != 0)
 		ctx_p->cipher_mode = DRV_CIPHER_CBC_CTS;
 
-	if (rc != -EINPROGRESS)
+	if (rc != -EINPROGRESS) {
 		kfree(req_ctx->backup_info);
+		kfree(req_ctx->iv);
+	}
 
 	return rc;
 }
@@ -1245,16 +1249,15 @@ static struct ssi_alg_template blkcipher_algs[] = {
 };
 
 static
-struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template *template)
+struct ssi_crypto_alg *ssi_ablkcipher_create_alg(struct ssi_alg_template
+						 *template, struct device *dev)
 {
 	struct ssi_crypto_alg *t_alg;
 	struct crypto_alg *alg;
 
 	t_alg = kzalloc(sizeof(*t_alg), GFP_KERNEL);
-	if (!t_alg) {
-		SSI_LOG_ERR("failed to allocate t_alg\n");
+	if (!t_alg)
 		return ERR_PTR(-ENOMEM);
-	}
 
 	alg = &t_alg->crypto_alg;
 
@@ -1285,10 +1288,6 @@ int ssi_ablkcipher_free(struct ssi_drvdata *drvdata)
 	struct ssi_crypto_alg *t_alg, *n;
 	struct ssi_blkcipher_handle *blkcipher_handle =
 						drvdata->blkcipher_handle;
-	struct device *dev;
-
-	dev = &drvdata->plat_dev->dev;
-
 	if (blkcipher_handle) {
 		/* Remove registered algs */
 		list_for_each_entry_safe(t_alg, n,
@@ -1308,6 +1307,7 @@ int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata)
 {
 	struct ssi_blkcipher_handle *ablkcipher_handle;
 	struct ssi_crypto_alg *t_alg;
+	struct device *dev = drvdata_to_dev(drvdata);
 	int rc = -ENOMEM;
 	int alg;
 
@@ -1315,37 +1315,38 @@ int ssi_ablkcipher_alloc(struct ssi_drvdata *drvdata)
 	if (!ablkcipher_handle)
 		return -ENOMEM;
 
-	drvdata->blkcipher_handle = ablkcipher_handle;
-
 	INIT_LIST_HEAD(&ablkcipher_handle->blkcipher_alg_list);
+	drvdata->blkcipher_handle = ablkcipher_handle;
 
 	/* Linux crypto */
-	SSI_LOG_DEBUG("Number of algorithms = %zu\n", ARRAY_SIZE(blkcipher_algs));
+	dev_dbg(dev, "Number of algorithms = %zu\n",
+		ARRAY_SIZE(blkcipher_algs));
 	for (alg = 0; alg < ARRAY_SIZE(blkcipher_algs); alg++) {
-		SSI_LOG_DEBUG("creating %s\n", blkcipher_algs[alg].driver_name);
-		t_alg = ssi_ablkcipher_create_alg(&blkcipher_algs[alg]);
+		dev_dbg(dev, "creating %s\n", blkcipher_algs[alg].driver_name);
+		t_alg = ssi_ablkcipher_create_alg(&blkcipher_algs[alg], dev);
 		if (IS_ERR(t_alg)) {
 			rc = PTR_ERR(t_alg);
-			SSI_LOG_ERR("%s alg allocation failed\n",
-				    blkcipher_algs[alg].driver_name);
+			dev_err(dev, "%s alg allocation failed\n",
+				blkcipher_algs[alg].driver_name);
 			goto fail0;
 		}
 		t_alg->drvdata = drvdata;
 
-		SSI_LOG_DEBUG("registering %s\n", blkcipher_algs[alg].driver_name);
+		dev_dbg(dev, "registering %s\n",
+			blkcipher_algs[alg].driver_name);
 		rc = crypto_register_alg(&t_alg->crypto_alg);
-		SSI_LOG_DEBUG("%s alg registration rc = %x\n",
-			      t_alg->crypto_alg.cra_driver_name, rc);
+		dev_dbg(dev, "%s alg registration rc = %x\n",
+			t_alg->crypto_alg.cra_driver_name, rc);
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("%s alg registration failed\n",
-				    t_alg->crypto_alg.cra_driver_name);
+			dev_err(dev, "%s alg registration failed\n",
+				t_alg->crypto_alg.cra_driver_name);
 			kfree(t_alg);
 			goto fail0;
 		} else {
 			list_add_tail(&t_alg->entry,
 				      &ablkcipher_handle->blkcipher_alg_list);
-			SSI_LOG_DEBUG("Registered %s\n",
-				      t_alg->crypto_alg.cra_driver_name);
+			dev_dbg(dev, "Registered %s\n",
+				t_alg->crypto_alg.cra_driver_name);
 		}
 	}
 	return 0;
diff --git a/drivers/staging/ccree/ssi_cipher.h b/drivers/staging/ccree/ssi_cipher.h
index 296b375d5d89..25e6335c0d94 100644
--- a/drivers/staging/ccree/ssi_cipher.h
+++ b/drivers/staging/ccree/ssi_cipher.h
@@ -27,11 +27,11 @@
 #include "ssi_buffer_mgr.h"
 
 /* Crypto cipher flags */
-#define CC_CRYPTO_CIPHER_KEY_KFDE0    (1 << 0)
-#define CC_CRYPTO_CIPHER_KEY_KFDE1    (1 << 1)
-#define CC_CRYPTO_CIPHER_KEY_KFDE2    (1 << 2)
-#define CC_CRYPTO_CIPHER_KEY_KFDE3    (1 << 3)
-#define CC_CRYPTO_CIPHER_DU_SIZE_512B (1 << 4)
+#define CC_CRYPTO_CIPHER_KEY_KFDE0	BIT(0)
+#define CC_CRYPTO_CIPHER_KEY_KFDE1	BIT(1)
+#define CC_CRYPTO_CIPHER_KEY_KFDE2	BIT(2)
+#define CC_CRYPTO_CIPHER_KEY_KFDE3	BIT(3)
+#define CC_CRYPTO_CIPHER_DU_SIZE_512B	BIT(4)
 
 #define CC_CRYPTO_CIPHER_KEY_KFDE_MASK (CC_CRYPTO_CIPHER_KEY_KFDE0 | CC_CRYPTO_CIPHER_KEY_KFDE1 | CC_CRYPTO_CIPHER_KEY_KFDE2 | CC_CRYPTO_CIPHER_KEY_KFDE3)
 
@@ -43,6 +43,7 @@ struct blkcipher_req_ctx {
 	u32 out_nents;
 	u32 out_mlli_nents;
 	u8 *backup_info; /*store iv for generated IV flow*/
+	u8 *iv;
 	bool is_giv;
 	struct mlli_params mlli_params;
 };
@@ -75,7 +76,7 @@ struct arm_hw_key_info {
 
 static inline bool ssi_is_hw_key(struct crypto_tfm *tfm)
 {
-	return 0;
+	return false;
 }
 
 #endif /* CRYPTO_TFM_REQ_HW_KEY */
diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/ssi_driver.c
index 9c6f1200c130..1a3c481fa92a 100644
--- a/drivers/staging/ccree/ssi_driver.c
+++ b/drivers/staging/ccree/ssi_driver.c
@@ -74,70 +74,46 @@
 #include "ssi_fips.h"
 
 #ifdef DX_DUMP_BYTES
-void dump_byte_array(const char *name, const u8 *the_array, unsigned long size)
+void dump_byte_array(const char *name, const u8 *buf, size_t len)
 {
-	int i, line_offset = 0, ret = 0;
-	const u8 *cur_byte;
-	char line_buf[80];
+	char prefix[NAME_LEN];
 
-	if (!the_array) {
-		SSI_LOG_ERR("cannot dump array - NULL pointer\n");
+	if (!buf)
 		return;
-	}
 
-	ret = snprintf(line_buf, sizeof(line_buf), "%s[%lu]: ", name, size);
-	if (ret < 0) {
-		SSI_LOG_ERR("snprintf returned %d . aborting buffer array dump\n", ret);
-		return;
-	}
-	line_offset = ret;
-	for (i = 0, cur_byte = the_array;
-	     (i < size) && (line_offset < sizeof(line_buf)); i++, cur_byte++) {
-			ret = snprintf(line_buf + line_offset,
-				       sizeof(line_buf) - line_offset,
-				       "0x%02X ", *cur_byte);
-		if (ret < 0) {
-			SSI_LOG_ERR("snprintf returned %d . aborting buffer array dump\n", ret);
-			return;
-		}
-		line_offset += ret;
-		if (line_offset > 75) { /* Cut before line end */
-			SSI_LOG_DEBUG("%s\n", line_buf);
-			line_offset = 0;
-		}
-	}
+	snprintf(prefix, sizeof(prefix), "%s[%lu]: ", name, len);
 
-	if (line_offset > 0) /* Dump remaining line */
-		SSI_LOG_DEBUG("%s\n", line_buf);
+	print_hex_dump(KERN_DEBUG, prefix, DUMP_PREFIX_ADDRESS, 16, 1, len,
+		       false);
 }
 #endif
 
 static irqreturn_t cc_isr(int irq, void *dev_id)
 {
 	struct ssi_drvdata *drvdata = (struct ssi_drvdata *)dev_id;
-	void __iomem *cc_base = drvdata->cc_base;
+	struct device *dev = drvdata_to_dev(drvdata);
 	u32 irr;
 	u32 imr;
 
 	/* STAT_OP_TYPE_GENERIC STAT_PHASE_0: Interrupt */
 
 	/* read the interrupt status */
-	irr = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IRR));
-	SSI_LOG_DEBUG("Got IRR=0x%08X\n", irr);
+	irr = cc_ioread(drvdata, CC_REG(HOST_IRR));
+	dev_dbg(dev, "Got IRR=0x%08X\n", irr);
 	if (unlikely(irr == 0)) { /* Probably shared interrupt line */
-		SSI_LOG_ERR("Got interrupt with empty IRR\n");
+		dev_err(dev, "Got interrupt with empty IRR\n");
 		return IRQ_NONE;
 	}
-	imr = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR));
+	imr = cc_ioread(drvdata, CC_REG(HOST_IMR));
 
 	/* clear interrupt - must be before processing events */
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_ICR), irr);
+	cc_iowrite(drvdata, CC_REG(HOST_ICR), irr);
 
 	drvdata->irq = irr;
 	/* Completion interrupt - most probable */
 	if (likely((irr & SSI_COMP_IRQ_MASK) != 0)) {
 		/* Mask AXI completion interrupt - will be unmasked in Deferred service handler */
-		CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR), imr | SSI_COMP_IRQ_MASK);
+		cc_iowrite(drvdata, CC_REG(HOST_IMR), imr | SSI_COMP_IRQ_MASK);
 		irr &= ~SSI_COMP_IRQ_MASK;
 		complete_request(drvdata);
 	}
@@ -145,7 +121,7 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
 	/* TEE FIPS interrupt */
 	if (likely((irr & SSI_GPR0_IRQ_MASK) != 0)) {
 		/* Mask interrupt - will be unmasked in Deferred service handler */
-		CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR), imr | SSI_GPR0_IRQ_MASK);
+		cc_iowrite(drvdata, CC_REG(HOST_IMR), imr | SSI_GPR0_IRQ_MASK);
 		irr &= ~SSI_GPR0_IRQ_MASK;
 		fips_handler(drvdata);
 	}
@@ -155,14 +131,16 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
 		u32 axi_err;
 
 		/* Read the AXI error ID */
-		axi_err = CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_ERR));
-		SSI_LOG_DEBUG("AXI completion error: axim_mon_err=0x%08X\n", axi_err);
+		axi_err = cc_ioread(drvdata, CC_REG(AXIM_MON_ERR));
+		dev_dbg(dev, "AXI completion error: axim_mon_err=0x%08X\n",
+			axi_err);
 
 		irr &= ~SSI_AXI_ERR_IRQ_MASK;
 	}
 
 	if (unlikely(irr != 0)) {
-		SSI_LOG_DEBUG("IRR includes unknown cause bits (0x%08X)\n", irr);
+		dev_dbg(dev, "IRR includes unknown cause bits (0x%08X)\n",
+			irr);
 		/* Just warning */
 	}
 
@@ -172,48 +150,48 @@ static irqreturn_t cc_isr(int irq, void *dev_id)
 int init_cc_regs(struct ssi_drvdata *drvdata, bool is_probe)
 {
 	unsigned int val, cache_params;
-	void __iomem *cc_base = drvdata->cc_base;
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	/* Unmask all AXI interrupt sources AXI_CFG1 register */
-	val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_CFG));
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_CFG), val & ~SSI_AXI_IRQ_MASK);
-	SSI_LOG_DEBUG("AXIM_CFG=0x%08X\n", CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_CFG)));
+	val = cc_ioread(drvdata, CC_REG(AXIM_CFG));
+	cc_iowrite(drvdata, CC_REG(AXIM_CFG), val & ~SSI_AXI_IRQ_MASK);
+	dev_dbg(dev, "AXIM_CFG=0x%08X\n",
+		cc_ioread(drvdata, CC_REG(AXIM_CFG)));
 
 	/* Clear all pending interrupts */
-	val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IRR));
-	SSI_LOG_DEBUG("IRR=0x%08X\n", val);
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_ICR), val);
+	val = cc_ioread(drvdata, CC_REG(HOST_IRR));
+	dev_dbg(dev, "IRR=0x%08X\n", val);
+	cc_iowrite(drvdata, CC_REG(HOST_ICR), val);
 
 	/* Unmask relevant interrupt cause */
-	val = (~(SSI_COMP_IRQ_MASK | SSI_AXI_ERR_IRQ_MASK | SSI_GPR0_IRQ_MASK));
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR), val);
+	val = (unsigned int)(~(SSI_COMP_IRQ_MASK | SSI_AXI_ERR_IRQ_MASK |
+			       SSI_GPR0_IRQ_MASK));
+	cc_iowrite(drvdata, CC_REG(HOST_IMR), val);
 
 #ifdef DX_HOST_IRQ_TIMER_INIT_VAL_REG_OFFSET
 #ifdef DX_IRQ_DELAY
 	/* Set CC IRQ delay */
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IRQ_TIMER_INIT_VAL),
-			      DX_IRQ_DELAY);
+	cc_iowrite(drvdata, CC_REG(HOST_IRQ_TIMER_INIT_VAL), DX_IRQ_DELAY);
 #endif
-	if (CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IRQ_TIMER_INIT_VAL)) > 0) {
-		SSI_LOG_DEBUG("irq_delay=%d CC cycles\n",
-			      CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IRQ_TIMER_INIT_VAL)));
+	if (cc_ioread(drvdata, CC_REG(HOST_IRQ_TIMER_INIT_VAL)) > 0) {
+		dev_dbg(dev, "irq_delay=%d CC cycles\n",
+			cc_ioread(drvdata, CC_REG(HOST_IRQ_TIMER_INIT_VAL)));
 	}
 #endif
 
 	cache_params = (drvdata->coherent ? CC_COHERENT_CACHE_PARAMS : 0x0);
 
-	val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_CACHE_PARAMS));
+	val = cc_ioread(drvdata, CC_REG(AXIM_CACHE_PARAMS));
 
 	if (is_probe)
-		SSI_LOG_INFO("Cache params previous: 0x%08X\n", val);
+		dev_info(dev, "Cache params previous: 0x%08X\n", val);
 
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_CACHE_PARAMS),
-			      cache_params);
-	val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_CACHE_PARAMS));
+	cc_iowrite(drvdata, CC_REG(AXIM_CACHE_PARAMS), cache_params);
+	val = cc_ioread(drvdata, CC_REG(AXIM_CACHE_PARAMS));
 
 	if (is_probe)
-		SSI_LOG_INFO("Cache params current: 0x%08X (expect: 0x%08X)\n",
-			     val, cache_params);
+		dev_info(dev, "Cache params current: 0x%08X (expect: 0x%08X)\n",
+			 val, cache_params);
 
 	return 0;
 }
@@ -222,181 +200,172 @@ static int init_cc_resources(struct platform_device *plat_dev)
 {
 	struct resource *req_mem_cc_regs = NULL;
 	void __iomem *cc_base = NULL;
-	bool irq_registered = false;
-	struct ssi_drvdata *new_drvdata = kzalloc(sizeof(*new_drvdata),
-						  GFP_KERNEL);
+	struct ssi_drvdata *new_drvdata;
 	struct device *dev = &plat_dev->dev;
 	struct device_node *np = dev->of_node;
 	u32 signature_val;
+	dma_addr_t dma_mask;
 	int rc = 0;
 
-	if (unlikely(!new_drvdata)) {
-		SSI_LOG_ERR("Failed to allocate drvdata");
-		rc = -ENOMEM;
-		goto init_cc_res_err;
-	}
+	new_drvdata = devm_kzalloc(dev, sizeof(*new_drvdata), GFP_KERNEL);
+	if (!new_drvdata)
+		return -ENOMEM;
+
+	platform_set_drvdata(plat_dev, new_drvdata);
+	new_drvdata->plat_dev = plat_dev;
 
 	new_drvdata->clk = of_clk_get(np, 0);
 	new_drvdata->coherent = of_dma_is_coherent(np);
 
-	/*Initialize inflight counter used in dx_ablkcipher_secure_complete used for count of BYSPASS blocks operations*/
-	new_drvdata->inflight_counter = 0;
-
-	dev_set_drvdata(&plat_dev->dev, new_drvdata);
 	/* Get device resources */
 	/* First CC registers space */
-	new_drvdata->res_mem = platform_get_resource(plat_dev, IORESOURCE_MEM, 0);
-	if (unlikely(!new_drvdata->res_mem)) {
-		SSI_LOG_ERR("Failed getting IO memory resource\n");
-		rc = -ENODEV;
-		goto init_cc_res_err;
-	}
-	SSI_LOG_DEBUG("Got MEM resource (%s): start=%pad end=%pad\n",
-		      new_drvdata->res_mem->name,
-		      new_drvdata->res_mem->start,
-		      new_drvdata->res_mem->end);
+	req_mem_cc_regs = platform_get_resource(plat_dev, IORESOURCE_MEM, 0);
 	/* Map registers space */
-	req_mem_cc_regs = request_mem_region(new_drvdata->res_mem->start, resource_size(new_drvdata->res_mem), "arm_cc7x_regs");
-	if (unlikely(!req_mem_cc_regs)) {
-		SSI_LOG_ERR("Couldn't allocate registers memory region at "
-			     "0x%08X\n", (unsigned int)new_drvdata->res_mem->start);
-		rc = -EBUSY;
-		goto init_cc_res_err;
+	new_drvdata->cc_base = devm_ioremap_resource(dev, req_mem_cc_regs);
+	if (IS_ERR(new_drvdata->cc_base)) {
+		dev_err(dev, "Failed to ioremap registers");
+		return PTR_ERR(new_drvdata->cc_base);
 	}
-	cc_base = ioremap(new_drvdata->res_mem->start, resource_size(new_drvdata->res_mem));
-	if (unlikely(!cc_base)) {
-		SSI_LOG_ERR("ioremap[CC](0x%08X,0x%08X) failed\n",
-			    (unsigned int)new_drvdata->res_mem->start,
-			    (unsigned int)resource_size(new_drvdata->res_mem));
-		rc = -ENOMEM;
-		goto init_cc_res_err;
-	}
-	SSI_LOG_DEBUG("CC registers mapped from %pa to 0x%p\n", &new_drvdata->res_mem->start, cc_base);
-	new_drvdata->cc_base = cc_base;
+
+	dev_dbg(dev, "Got MEM resource (%s): %pR\n", req_mem_cc_regs->name,
+		req_mem_cc_regs);
+	dev_dbg(dev, "CC registers mapped from %pa to 0x%p\n",
+		&req_mem_cc_regs->start, new_drvdata->cc_base);
+
+	cc_base = new_drvdata->cc_base;
 
 	/* Then IRQ */
-	new_drvdata->res_irq = platform_get_resource(plat_dev, IORESOURCE_IRQ, 0);
-	if (unlikely(!new_drvdata->res_irq)) {
-		SSI_LOG_ERR("Failed getting IRQ resource\n");
-		rc = -ENODEV;
-		goto init_cc_res_err;
-	}
-	rc = request_irq(new_drvdata->res_irq->start, cc_isr,
-			 IRQF_SHARED, "arm_cc7x", new_drvdata);
-	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("Could not register to interrupt %llu\n",
-			    (unsigned long long)new_drvdata->res_irq->start);
-		goto init_cc_res_err;
+	new_drvdata->irq = platform_get_irq(plat_dev, 0);
+	if (new_drvdata->irq < 0) {
+		dev_err(dev, "Failed getting IRQ resource\n");
+		return new_drvdata->irq;
 	}
-	init_completion(&new_drvdata->icache_setup_completion);
 
-	irq_registered = true;
-	SSI_LOG_DEBUG("Registered to IRQ (%s) %llu\n",
-		      new_drvdata->res_irq->name,
-		      (unsigned long long)new_drvdata->res_irq->start);
+	rc = devm_request_irq(dev, new_drvdata->irq, cc_isr,
+			      IRQF_SHARED, "arm_cc7x", new_drvdata);
+	if (rc) {
+		dev_err(dev, "Could not register to interrupt %d\n",
+			new_drvdata->irq);
+		return rc;
+	}
+	dev_dbg(dev, "Registered to IRQ: %d\n", new_drvdata->irq);
 
-	new_drvdata->plat_dev = plat_dev;
+	if (!plat_dev->dev.dma_mask)
+		plat_dev->dev.dma_mask = &plat_dev->dev.coherent_dma_mask;
 
-	rc = cc_clk_on(new_drvdata);
-	if (rc)
-		goto init_cc_res_err;
+	dma_mask = (dma_addr_t)(DMA_BIT_MASK(DMA_BIT_MASK_LEN));
+	while (dma_mask > 0x7fffffffUL) {
+		if (dma_supported(&plat_dev->dev, dma_mask)) {
+			rc = dma_set_coherent_mask(&plat_dev->dev, dma_mask);
+			if (!rc)
+				break;
+		}
+		dma_mask >>= 1;
+	}
 
-	if (!new_drvdata->plat_dev->dev.dma_mask)
-		new_drvdata->plat_dev->dev.dma_mask = &new_drvdata->plat_dev->dev.coherent_dma_mask;
+	if (rc) {
+		dev_err(dev, "Failed in dma_set_mask, mask=%par\n",
+			&dma_mask);
+		return rc;
+	}
 
-	if (!new_drvdata->plat_dev->dev.coherent_dma_mask)
-		new_drvdata->plat_dev->dev.coherent_dma_mask = DMA_BIT_MASK(DMA_BIT_MASK_LEN);
+	rc = cc_clk_on(new_drvdata);
+	if (rc) {
+		dev_err(dev, "Failed to enable clock");
+		return rc;
+	}
 
 	/* Verify correct mapping */
-	signature_val = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_SIGNATURE));
+	signature_val = cc_ioread(new_drvdata, CC_REG(HOST_SIGNATURE));
 	if (signature_val != DX_DEV_SIGNATURE) {
-		SSI_LOG_ERR("Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n",
-			    signature_val, (u32)DX_DEV_SIGNATURE);
+		dev_err(dev, "Invalid CC signature: SIGNATURE=0x%08X != expected=0x%08X\n",
+			signature_val, (u32)DX_DEV_SIGNATURE);
 		rc = -EINVAL;
-		goto init_cc_res_err;
+		goto post_clk_err;
 	}
-	SSI_LOG_DEBUG("CC SIGNATURE=0x%08X\n", signature_val);
+	dev_dbg(dev, "CC SIGNATURE=0x%08X\n", signature_val);
 
 	/* Display HW versions */
-	SSI_LOG(KERN_INFO, "ARM CryptoCell %s Driver: HW version 0x%08X, Driver version %s\n", SSI_DEV_NAME_STR,
-		CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_VERSION)), DRV_MODULE_VERSION);
+	dev_info(dev, "ARM CryptoCell %s Driver: HW version 0x%08X, Driver version %s\n",
+		 SSI_DEV_NAME_STR,
+		 cc_ioread(new_drvdata, CC_REG(HOST_VERSION)),
+		 DRV_MODULE_VERSION);
 
 	rc = init_cc_regs(new_drvdata, true);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("init_cc_regs failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "init_cc_regs failed\n");
+		goto post_clk_err;
 	}
 
 #ifdef ENABLE_CC_SYSFS
-	rc = ssi_sysfs_init(&plat_dev->dev.kobj, new_drvdata);
+	rc = ssi_sysfs_init(&dev->kobj, new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("init_stat_db failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "init_stat_db failed\n");
+		goto post_regs_err;
 	}
 #endif
 
+	rc = ssi_fips_init(new_drvdata);
+	if (unlikely(rc != 0)) {
+		dev_err(dev, "SSI_FIPS_INIT failed 0x%x\n", rc);
+		goto post_sysfs_err;
+	}
 	rc = ssi_sram_mgr_init(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("ssi_sram_mgr_init failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "ssi_sram_mgr_init failed\n");
+		goto post_fips_init_err;
 	}
 
 	new_drvdata->mlli_sram_addr =
 		ssi_sram_mgr_alloc(new_drvdata, MAX_MLLI_BUFF_SIZE);
 	if (unlikely(new_drvdata->mlli_sram_addr == NULL_SRAM_ADDR)) {
-		SSI_LOG_ERR("Failed to alloc MLLI Sram buffer\n");
+		dev_err(dev, "Failed to alloc MLLI Sram buffer\n");
 		rc = -ENOMEM;
-		goto init_cc_res_err;
+		goto post_sram_mgr_err;
 	}
 
 	rc = request_mgr_init(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("request_mgr_init failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "request_mgr_init failed\n");
+		goto post_sram_mgr_err;
 	}
 
 	rc = ssi_buffer_mgr_init(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("buffer_mgr_init failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "buffer_mgr_init failed\n");
+		goto post_req_mgr_err;
 	}
 
 	rc = ssi_power_mgr_init(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("ssi_power_mgr_init failed\n");
-		goto init_cc_res_err;
-	}
-
-	rc = ssi_fips_init(new_drvdata);
-	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("SSI_FIPS_INIT failed 0x%x\n", rc);
-		goto init_cc_res_err;
+		dev_err(dev, "ssi_power_mgr_init failed\n");
+		goto post_buf_mgr_err;
 	}
 
 	rc = ssi_ivgen_init(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("ssi_ivgen_init failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "ssi_ivgen_init failed\n");
+		goto post_power_mgr_err;
 	}
 
 	/* Allocate crypto algs */
 	rc = ssi_ablkcipher_alloc(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("ssi_ablkcipher_alloc failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "ssi_ablkcipher_alloc failed\n");
+		goto post_ivgen_err;
 	}
 
 	/* hash must be allocated before aead since hash exports APIs */
 	rc = ssi_hash_alloc(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("ssi_hash_alloc failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "ssi_hash_alloc failed\n");
+		goto post_cipher_err;
 	}
 
 	rc = ssi_aead_alloc(new_drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("ssi_aead_alloc failed\n");
-		goto init_cc_res_err;
+		dev_err(dev, "ssi_aead_alloc failed\n");
+		goto post_hash_err;
 	}
 
 	/* If we got here and FIPS mode is enabled
@@ -407,52 +376,43 @@ static int init_cc_resources(struct platform_device *plat_dev)
 
 	return 0;
 
-init_cc_res_err:
-	SSI_LOG_ERR("Freeing CC HW resources!\n");
-
-	if (new_drvdata) {
-		ssi_aead_free(new_drvdata);
-		ssi_hash_free(new_drvdata);
-		ssi_ablkcipher_free(new_drvdata);
-		ssi_ivgen_fini(new_drvdata);
-		ssi_power_mgr_fini(new_drvdata);
-		ssi_buffer_mgr_fini(new_drvdata);
-		request_mgr_fini(new_drvdata);
-		ssi_sram_mgr_fini(new_drvdata);
-		ssi_fips_fini(new_drvdata);
+post_hash_err:
+	ssi_hash_free(new_drvdata);
+post_cipher_err:
+	ssi_ablkcipher_free(new_drvdata);
+post_ivgen_err:
+	ssi_ivgen_fini(new_drvdata);
+post_power_mgr_err:
+	ssi_power_mgr_fini(new_drvdata);
+post_buf_mgr_err:
+	 ssi_buffer_mgr_fini(new_drvdata);
+post_req_mgr_err:
+	request_mgr_fini(new_drvdata);
+post_sram_mgr_err:
+	ssi_sram_mgr_fini(new_drvdata);
+post_fips_init_err:
+	ssi_fips_fini(new_drvdata);
+post_sysfs_err:
 #ifdef ENABLE_CC_SYSFS
-		ssi_sysfs_fini();
+	ssi_sysfs_fini();
 #endif
-
-		if (req_mem_cc_regs) {
-			if (irq_registered) {
-				free_irq(new_drvdata->res_irq->start, new_drvdata);
-				new_drvdata->res_irq = NULL;
-				iounmap(cc_base);
-				new_drvdata->cc_base = NULL;
-			}
-			release_mem_region(new_drvdata->res_mem->start,
-					   resource_size(new_drvdata->res_mem));
-			new_drvdata->res_mem = NULL;
-		}
-		kfree(new_drvdata);
-		dev_set_drvdata(&plat_dev->dev, NULL);
-	}
-
+post_regs_err:
+	fini_cc_regs(new_drvdata);
+post_clk_err:
+	cc_clk_off(new_drvdata);
 	return rc;
 }
 
 void fini_cc_regs(struct ssi_drvdata *drvdata)
 {
 	/* Mask all interrupts */
-	WRITE_REGISTER(drvdata->cc_base +
-		       CC_REG_OFFSET(HOST_RGF, HOST_IMR), 0xFFFFFFFF);
+	cc_iowrite(drvdata, CC_REG(HOST_IMR), 0xFFFFFFFF);
 }
 
 static void cleanup_cc_resources(struct platform_device *plat_dev)
 {
 	struct ssi_drvdata *drvdata =
-		(struct ssi_drvdata *)dev_get_drvdata(&plat_dev->dev);
+		(struct ssi_drvdata *)platform_get_drvdata(plat_dev);
 
 	ssi_aead_free(drvdata);
 	ssi_hash_free(drvdata);
@@ -466,22 +426,8 @@ static void cleanup_cc_resources(struct platform_device *plat_dev)
 #ifdef ENABLE_CC_SYSFS
 	ssi_sysfs_fini();
 #endif
-
 	fini_cc_regs(drvdata);
 	cc_clk_off(drvdata);
-	free_irq(drvdata->res_irq->start, drvdata);
-	drvdata->res_irq = NULL;
-
-	if (drvdata->cc_base) {
-		iounmap(drvdata->cc_base);
-		release_mem_region(drvdata->res_mem->start,
-				   resource_size(drvdata->res_mem));
-		drvdata->cc_base = NULL;
-		drvdata->res_mem = NULL;
-	}
-
-	kfree(drvdata);
-	dev_set_drvdata(&plat_dev->dev, NULL);
 }
 
 int cc_clk_on(struct ssi_drvdata *drvdata)
@@ -514,18 +460,19 @@ void cc_clk_off(struct ssi_drvdata *drvdata)
 static int cc7x_probe(struct platform_device *plat_dev)
 {
 	int rc;
+	struct device *dev = &plat_dev->dev;
 #if defined(CONFIG_ARM) && defined(CC_DEBUG)
 	u32 ctr, cacheline_size;
 
 	asm volatile("mrc p15, 0, %0, c0, c0, 1" : "=r" (ctr));
 	cacheline_size =  4 << ((ctr >> 16) & 0xf);
-	SSI_LOG_DEBUG("CP15(L1_CACHE_BYTES) = %u , Kconfig(L1_CACHE_BYTES) = %u\n",
-		      cacheline_size, L1_CACHE_BYTES);
+	dev_dbg(dev, "CP15(L1_CACHE_BYTES) = %u , Kconfig(L1_CACHE_BYTES) = %u\n",
+		cacheline_size, L1_CACHE_BYTES);
 
 	asm volatile("mrc p15, 0, %0, c0, c0, 0" : "=r" (ctr));
-	SSI_LOG_DEBUG("Main ID register (MIDR): Implementer 0x%02X, Arch 0x%01X, Part 0x%03X, Rev r%dp%d\n",
-		      (ctr >> 24), (ctr >> 16) & 0xF, (ctr >> 4) & 0xFFF,
-		      (ctr >> 20) & 0xF, ctr & 0xF);
+	dev_dbg(dev, "Main ID register (MIDR): Implementer 0x%02X, Arch 0x%01X, Part 0x%03X, Rev r%dp%d\n",
+		(ctr >> 24), (ctr >> 16) & 0xF, (ctr >> 4) & 0xFFF,
+		(ctr >> 20) & 0xF, ctr & 0xF);
 #endif
 
 	/* Map registers space */
@@ -533,18 +480,20 @@ static int cc7x_probe(struct platform_device *plat_dev)
 	if (rc != 0)
 		return rc;
 
-	SSI_LOG(KERN_INFO, "ARM cc7x_ree device initialized\n");
+	dev_info(dev, "ARM ccree device initialized\n");
 
 	return 0;
 }
 
 static int cc7x_remove(struct platform_device *plat_dev)
 {
-	SSI_LOG_DEBUG("Releasing cc7x resources...\n");
+	struct device *dev = &plat_dev->dev;
+
+	dev_dbg(dev, "Releasing cc7x resources...\n");
 
 	cleanup_cc_resources(plat_dev);
 
-	SSI_LOG(KERN_INFO, "ARM cc7x_ree device terminated\n");
+	dev_info(dev, "ARM ccree device terminated\n");
 
 	return 0;
 }
diff --git a/drivers/staging/ccree/ssi_driver.h b/drivers/staging/ccree/ssi_driver.h
index b6ad89ae9bee..94c755cafb47 100644
--- a/drivers/staging/ccree/ssi_driver.h
+++ b/drivers/staging/ccree/ssi_driver.h
@@ -37,13 +37,11 @@
 #include <crypto/hash.h>
 #include <linux/version.h>
 #include <linux/clk.h>
+#include <linux/platform_device.h>
 
 /* Registers definitions from shared/hw/ree_include */
-#include "dx_reg_base_host.h"
 #include "dx_host.h"
-#include "cc_regs.h"
 #include "dx_reg_common.h"
-#include "cc_hal.h"
 #define CC_SUPPORT_SHA DX_DEV_SHA_MAX
 #include "cc_crypto_ctx.h"
 #include "ssi_sysfs.h"
@@ -68,12 +66,19 @@
 #define SSI_AXI_IRQ_MASK ((1 << DX_AXIM_CFG_BRESPMASK_BIT_SHIFT) | (1 << DX_AXIM_CFG_RRESPMASK_BIT_SHIFT) |	\
 			(1 << DX_AXIM_CFG_INFLTMASK_BIT_SHIFT) | (1 << DX_AXIM_CFG_COMPMASK_BIT_SHIFT))
 
-#define SSI_AXI_ERR_IRQ_MASK (1 << DX_HOST_IRR_AXI_ERR_INT_BIT_SHIFT)
+#define SSI_AXI_ERR_IRQ_MASK BIT(DX_HOST_IRR_AXI_ERR_INT_BIT_SHIFT)
 
-#define SSI_COMP_IRQ_MASK (1 << DX_HOST_IRR_AXIM_COMP_INT_BIT_SHIFT)
+#define SSI_COMP_IRQ_MASK BIT(DX_HOST_IRR_AXIM_COMP_INT_BIT_SHIFT)
+
+#define AXIM_MON_COMP_VALUE GENMASK(DX_AXIM_MON_COMP_VALUE_BIT_SIZE + \
+				    DX_AXIM_MON_COMP_VALUE_BIT_SHIFT, \
+				    DX_AXIM_MON_COMP_VALUE_BIT_SHIFT)
+
+/* Register name mangling macro */
+#define CC_REG(reg_name) DX_ ## reg_name ## _REG_OFFSET
 
 /* TEE FIPS status interrupt */
-#define SSI_GPR0_IRQ_MASK (1 << DX_HOST_IRR_GPR0_BIT_SHIFT)
+#define SSI_GPR0_IRQ_MASK BIT(DX_HOST_IRR_GPR0_BIT_SHIFT)
 
 #define SSI_CRA_PRIO 3000
 
@@ -90,19 +95,6 @@
  * field in the HW descriptor. The DMA engine +8 that value.
  */
 
-/* Logging macros */
-#define SSI_LOG(level, format, ...) \
-	printk(level "cc715ree::%s: " format, __func__, ##__VA_ARGS__)
-#define SSI_LOG_ERR(format, ...) SSI_LOG(KERN_ERR, format, ##__VA_ARGS__)
-#define SSI_LOG_WARNING(format, ...) SSI_LOG(KERN_WARNING, format, ##__VA_ARGS__)
-#define SSI_LOG_NOTICE(format, ...) SSI_LOG(KERN_NOTICE, format, ##__VA_ARGS__)
-#define SSI_LOG_INFO(format, ...) SSI_LOG(KERN_INFO, format, ##__VA_ARGS__)
-#ifdef CC_DEBUG
-#define SSI_LOG_DEBUG(format, ...) SSI_LOG(KERN_DEBUG, format, ##__VA_ARGS__)
-#else /* Debug log messages are removed at compile time for non-DEBUG config. */
-#define SSI_LOG_DEBUG(format, ...) do {} while (0)
-#endif
-
 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
 
@@ -128,10 +120,8 @@ struct ssi_crypto_req {
  * @fw_ver:	SeP loaded firmware version
  */
 struct ssi_drvdata {
-	struct resource *res_mem;
-	struct resource *res_irq;
 	void __iomem *cc_base;
-	unsigned int irq;
+	int irq;
 	u32 irq_mask;
 	u32 fw_ver;
 	/* Calibration time of start/stop
@@ -140,7 +130,6 @@ struct ssi_drvdata {
 	u32 monitor_null_cycles;
 	struct platform_device *plat_dev;
 	ssi_sram_addr_t mlli_sram_addr;
-	struct completion icache_setup_completion;
 	void *buff_mgr_handle;
 	void *hash_handle;
 	void *aead_handle;
@@ -149,7 +138,6 @@ struct ssi_drvdata {
 	void *fips_handle;
 	void *ivgen_handle;
 	void *sram_mgr_handle;
-	u32 inflight_counter;
 	struct clk *clk;
 	bool coherent;
 };
@@ -187,11 +175,16 @@ struct async_gen_req_ctx {
 	enum drv_crypto_direction op_type;
 };
 
+static inline struct device *drvdata_to_dev(struct ssi_drvdata *drvdata)
+{
+	return &drvdata->plat_dev->dev;
+}
+
 #ifdef DX_DUMP_BYTES
 void dump_byte_array(const char *name, const u8 *the_array, unsigned long size);
 #else
-#define dump_byte_array(name, array, size) do {	\
-} while (0);
+static inline void dump_byte_array(const char *name, const u8 *the_array,
+				   unsigned long size) {};
 #endif
 
 int init_cc_regs(struct ssi_drvdata *drvdata, bool is_probe);
@@ -199,5 +192,15 @@ void fini_cc_regs(struct ssi_drvdata *drvdata);
 int cc_clk_on(struct ssi_drvdata *drvdata);
 void cc_clk_off(struct ssi_drvdata *drvdata);
 
+static inline void cc_iowrite(struct ssi_drvdata *drvdata, u32 reg, u32 val)
+{
+	iowrite32(val, (drvdata->cc_base + reg));
+}
+
+static inline u32 cc_ioread(struct ssi_drvdata *drvdata, u32 reg)
+{
+	return ioread32(drvdata->cc_base + reg);
+}
+
 #endif /*__SSI_DRIVER_H__*/
 
diff --git a/drivers/staging/ccree/ssi_fips.c b/drivers/staging/ccree/ssi_fips.c
index 33d53d64603d..4aea99fa129f 100644
--- a/drivers/staging/ccree/ssi_fips.c
+++ b/drivers/staging/ccree/ssi_fips.c
@@ -19,7 +19,6 @@
 
 #include "ssi_config.h"
 #include "ssi_driver.h"
-#include "cc_hal.h"
 #include "ssi_fips.h"
 
 static void fips_dsr(unsigned long devarg);
@@ -34,9 +33,8 @@ struct ssi_fips_handle {
 static bool cc_get_tee_fips_status(struct ssi_drvdata *drvdata)
 {
 	u32 reg;
-	void __iomem *cc_base = drvdata->cc_base;
 
-	reg = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, GPR_HOST));
+	reg = cc_ioread(drvdata, CC_REG(GPR_HOST));
 	return (reg == (CC_FIPS_SYNC_TEE_STATUS | CC_FIPS_SYNC_MODULE_OK));
 }
 
@@ -46,12 +44,11 @@ static bool cc_get_tee_fips_status(struct ssi_drvdata *drvdata)
  */
 void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool status)
 {
-	void __iomem *cc_base = drvdata->cc_base;
 	int val = CC_FIPS_SYNC_REE_STATUS;
 
 	val |= (status ? CC_FIPS_SYNC_MODULE_OK : CC_FIPS_SYNC_MODULE_ERROR);
 
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_GPR0), val);
+	cc_iowrite(drvdata, CC_REG(HOST_GPR0), val);
 }
 
 void ssi_fips_fini(struct ssi_drvdata *drvdata)
@@ -76,41 +73,42 @@ void fips_handler(struct ssi_drvdata *drvdata)
 	tasklet_schedule(&fips_handle_ptr->tasklet);
 }
 
-static inline void tee_fips_error(void)
+static inline void tee_fips_error(struct device *dev)
 {
 	if (fips_enabled)
 		panic("ccree: TEE reported cryptographic error in fips mode!\n");
 	else
-		SSI_LOG_ERR("TEE reported error!\n");
+		dev_err(dev, "TEE reported error!\n");
 }
 
 /* Deferred service handler, run as interrupt-fired tasklet */
 static void fips_dsr(unsigned long devarg)
 {
 	struct ssi_drvdata *drvdata = (struct ssi_drvdata *)devarg;
-	void __iomem *cc_base = drvdata->cc_base;
+	struct device *dev = drvdata_to_dev(drvdata);
 	u32 irq, state, val;
 
 	irq = (drvdata->irq & (SSI_GPR0_IRQ_MASK));
 
 	if (irq) {
-		state = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, GPR_HOST));
+		state = cc_ioread(drvdata, CC_REG(GPR_HOST));
 
 		if (state != (CC_FIPS_SYNC_TEE_STATUS | CC_FIPS_SYNC_MODULE_OK))
-			tee_fips_error();
+			tee_fips_error(dev);
 	}
 
 	/* after verifing that there is nothing to do,
 	 * unmask AXI completion interrupt.
 	 */
-	val = (CC_REG_OFFSET(HOST_RGF, HOST_IMR) & ~irq);
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR), val);
+	val = (CC_REG(HOST_IMR) & ~irq);
+	cc_iowrite(drvdata, CC_REG(HOST_IMR), val);
 }
 
 /* The function called once at driver entry point .*/
 int ssi_fips_init(struct ssi_drvdata *p_drvdata)
 {
 	struct ssi_fips_handle *fips_h;
+	struct device *dev = drvdata_to_dev(p_drvdata);
 
 	fips_h = kzalloc(sizeof(*fips_h), GFP_KERNEL);
 	if (!fips_h)
@@ -118,11 +116,11 @@ int ssi_fips_init(struct ssi_drvdata *p_drvdata)
 
 	p_drvdata->fips_handle = fips_h;
 
-	SSI_LOG_DEBUG("Initializing fips tasklet\n");
+	dev_dbg(dev, "Initializing fips tasklet\n");
 	tasklet_init(&fips_h->tasklet, fips_dsr, (unsigned long)p_drvdata);
 
 	if (!cc_get_tee_fips_status(p_drvdata))
-		tee_fips_error();
+		tee_fips_error(dev);
 
 	return 0;
 }
diff --git a/drivers/staging/ccree/ssi_fips.h b/drivers/staging/ccree/ssi_fips.h
index 369ddf9478e7..63bcca7f3af9 100644
--- a/drivers/staging/ccree/ssi_fips.h
+++ b/drivers/staging/ccree/ssi_fips.h
@@ -40,8 +40,8 @@ static inline int ssi_fips_init(struct ssi_drvdata *p_drvdata)
 }
 
 static inline void ssi_fips_fini(struct ssi_drvdata *drvdata) {}
-void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool ok) {}
-void fips_handler(struct ssi_drvdata *drvdata) {}
+static inline void cc_set_ree_fips_status(struct ssi_drvdata *drvdata, bool ok) {}
+static inline void fips_handler(struct ssi_drvdata *drvdata) {}
 
 #endif /* CONFIG_CRYPTO_FIPS */
 
diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c
index 13291aeaf350..d79090ed7f9c 100644
--- a/drivers/staging/ccree/ssi_hash.c
+++ b/drivers/staging/ccree/ssi_hash.c
@@ -134,14 +134,13 @@ static int ssi_hash_map_result(struct device *dev,
 			       digestsize,
 			       DMA_BIDIRECTIONAL);
 	if (unlikely(dma_mapping_error(dev, state->digest_result_dma_addr))) {
-		SSI_LOG_ERR("Mapping digest result buffer %u B for DMA failed\n",
-			    digestsize);
+		dev_err(dev, "Mapping digest result buffer %u B for DMA failed\n",
+			digestsize);
 		return -ENOMEM;
 	}
-	SSI_LOG_DEBUG("Mapped digest result buffer %u B "
-		     "at va=%pK to dma=%pad\n",
+	dev_dbg(dev, "Mapped digest result buffer %u B at va=%pK to dma=%pad\n",
 		digestsize, state->digest_result_buff,
-		state->digest_result_dma_addr);
+		&state->digest_result_dma_addr);
 
 	return 0;
 }
@@ -158,54 +157,50 @@ static int ssi_hash_map_request(struct device *dev,
 	int rc = -ENOMEM;
 
 	state->buff0 = kzalloc(SSI_MAX_HASH_BLCK_SIZE, GFP_KERNEL | GFP_DMA);
-	if (!state->buff0) {
-		SSI_LOG_ERR("Allocating buff0 in context failed\n");
+	if (!state->buff0)
 		goto fail0;
-	}
+
 	state->buff1 = kzalloc(SSI_MAX_HASH_BLCK_SIZE, GFP_KERNEL | GFP_DMA);
-	if (!state->buff1) {
-		SSI_LOG_ERR("Allocating buff1 in context failed\n");
+	if (!state->buff1)
 		goto fail_buff0;
-	}
+
 	state->digest_result_buff = kzalloc(SSI_MAX_HASH_DIGEST_SIZE, GFP_KERNEL | GFP_DMA);
-	if (!state->digest_result_buff) {
-		SSI_LOG_ERR("Allocating digest_result_buff in context failed\n");
+	if (!state->digest_result_buff)
 		goto fail_buff1;
-	}
+
 	state->digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL | GFP_DMA);
-	if (!state->digest_buff) {
-		SSI_LOG_ERR("Allocating digest-buffer in context failed\n");
+	if (!state->digest_buff)
 		goto fail_digest_result_buff;
-	}
 
-	SSI_LOG_DEBUG("Allocated digest-buffer in context ctx->digest_buff=@%p\n", state->digest_buff);
+	dev_dbg(dev, "Allocated digest-buffer in context ctx->digest_buff=@%p\n",
+		state->digest_buff);
 	if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) {
 		state->digest_bytes_len = kzalloc(HASH_LEN_SIZE, GFP_KERNEL | GFP_DMA);
-		if (!state->digest_bytes_len) {
-			SSI_LOG_ERR("Allocating digest-bytes-len in context failed\n");
+		if (!state->digest_bytes_len)
 			goto fail1;
-		}
-		SSI_LOG_DEBUG("Allocated digest-bytes-len in context state->>digest_bytes_len=@%p\n", state->digest_bytes_len);
+
+		dev_dbg(dev, "Allocated digest-bytes-len in context state->>digest_bytes_len=@%p\n",
+			state->digest_bytes_len);
 	} else {
 		state->digest_bytes_len = NULL;
 	}
 
 	state->opad_digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL | GFP_DMA);
-	if (!state->opad_digest_buff) {
-		SSI_LOG_ERR("Allocating opad-digest-buffer in context failed\n");
+	if (!state->opad_digest_buff)
 		goto fail2;
-	}
-	SSI_LOG_DEBUG("Allocated opad-digest-buffer in context state->digest_bytes_len=@%p\n", state->opad_digest_buff);
+
+	dev_dbg(dev, "Allocated opad-digest-buffer in context state->digest_bytes_len=@%p\n",
+		state->opad_digest_buff);
 
 	state->digest_buff_dma_addr = dma_map_single(dev, (void *)state->digest_buff, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
 	if (dma_mapping_error(dev, state->digest_buff_dma_addr)) {
-		SSI_LOG_ERR("Mapping digest len %d B at va=%pK for DMA failed\n",
-			    ctx->inter_digestsize, state->digest_buff);
+		dev_err(dev, "Mapping digest len %d B at va=%pK for DMA failed\n",
+			ctx->inter_digestsize, state->digest_buff);
 		goto fail3;
 	}
-	SSI_LOG_DEBUG("Mapped digest %d B at va=%pK to dma=%pad\n",
-		      ctx->inter_digestsize, state->digest_buff,
-		      state->digest_buff_dma_addr);
+	dev_dbg(dev, "Mapped digest %d B at va=%pK to dma=%pad\n",
+		ctx->inter_digestsize, state->digest_buff,
+		&state->digest_buff_dma_addr);
 
 	if (is_hmac) {
 		dma_sync_single_for_cpu(dev, ctx->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
@@ -240,7 +235,7 @@ static int ssi_hash_map_request(struct device *dev,
 
 		rc = send_request(ctx->drvdata, &ssi_req, &desc, 1, 0);
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			goto fail4;
 		}
 	}
@@ -248,13 +243,13 @@ static int ssi_hash_map_request(struct device *dev,
 	if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) {
 		state->digest_bytes_len_dma_addr = dma_map_single(dev, (void *)state->digest_bytes_len, HASH_LEN_SIZE, DMA_BIDIRECTIONAL);
 		if (dma_mapping_error(dev, state->digest_bytes_len_dma_addr)) {
-			SSI_LOG_ERR("Mapping digest len %u B at va=%pK for DMA failed\n",
-				    HASH_LEN_SIZE, state->digest_bytes_len);
+			dev_err(dev, "Mapping digest len %u B at va=%pK for DMA failed\n",
+				HASH_LEN_SIZE, state->digest_bytes_len);
 			goto fail4;
 		}
-		SSI_LOG_DEBUG("Mapped digest len %u B at va=%pK to dma=%pad\n",
-			      HASH_LEN_SIZE, state->digest_bytes_len,
-			      state->digest_bytes_len_dma_addr);
+		dev_dbg(dev, "Mapped digest len %u B at va=%pK to dma=%pad\n",
+			HASH_LEN_SIZE, state->digest_bytes_len,
+			&state->digest_bytes_len_dma_addr);
 	} else {
 		state->digest_bytes_len_dma_addr = 0;
 	}
@@ -262,14 +257,14 @@ static int ssi_hash_map_request(struct device *dev,
 	if (is_hmac && ctx->hash_mode != DRV_HASH_NULL) {
 		state->opad_digest_dma_addr = dma_map_single(dev, (void *)state->opad_digest_buff, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
 		if (dma_mapping_error(dev, state->opad_digest_dma_addr)) {
-			SSI_LOG_ERR("Mapping opad digest %d B at va=%pK for DMA failed\n",
-				    ctx->inter_digestsize,
-				    state->opad_digest_buff);
+			dev_err(dev, "Mapping opad digest %d B at va=%pK for DMA failed\n",
+				ctx->inter_digestsize,
+				state->opad_digest_buff);
 			goto fail5;
 		}
-		SSI_LOG_DEBUG("Mapped opad digest %d B at va=%pK to dma=%pad\n",
-			      ctx->inter_digestsize, state->opad_digest_buff,
-			      state->opad_digest_dma_addr);
+		dev_dbg(dev, "Mapped opad digest %d B at va=%pK to dma=%pad\n",
+			ctx->inter_digestsize, state->opad_digest_buff,
+			&state->opad_digest_dma_addr);
 	} else {
 		state->opad_digest_dma_addr = 0;
 	}
@@ -316,22 +311,22 @@ static void ssi_hash_unmap_request(struct device *dev,
 	if (state->digest_buff_dma_addr != 0) {
 		dma_unmap_single(dev, state->digest_buff_dma_addr,
 				 ctx->inter_digestsize, DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("Unmapped digest-buffer: digest_buff_dma_addr=%pad\n",
-			      state->digest_buff_dma_addr);
+		dev_dbg(dev, "Unmapped digest-buffer: digest_buff_dma_addr=%pad\n",
+			&state->digest_buff_dma_addr);
 		state->digest_buff_dma_addr = 0;
 	}
 	if (state->digest_bytes_len_dma_addr != 0) {
 		dma_unmap_single(dev, state->digest_bytes_len_dma_addr,
 				 HASH_LEN_SIZE, DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("Unmapped digest-bytes-len buffer: digest_bytes_len_dma_addr=%pad\n",
-			      state->digest_bytes_len_dma_addr);
+		dev_dbg(dev, "Unmapped digest-bytes-len buffer: digest_bytes_len_dma_addr=%pad\n",
+			&state->digest_bytes_len_dma_addr);
 		state->digest_bytes_len_dma_addr = 0;
 	}
 	if (state->opad_digest_dma_addr != 0) {
 		dma_unmap_single(dev, state->opad_digest_dma_addr,
 				 ctx->inter_digestsize, DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("Unmapped opad-digest: opad_digest_dma_addr=%pad\n",
-			      state->opad_digest_dma_addr);
+		dev_dbg(dev, "Unmapped opad-digest: opad_digest_dma_addr=%pad\n",
+			&state->opad_digest_dma_addr);
 		state->opad_digest_dma_addr = 0;
 	}
 
@@ -352,11 +347,9 @@ static void ssi_hash_unmap_result(struct device *dev,
 				 state->digest_result_dma_addr,
 				 digestsize,
 				  DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("unmpa digest result buffer "
-			     "va (%pK) pa (%pad) len %u\n",
-			     state->digest_result_buff,
-			     state->digest_result_dma_addr,
-			     digestsize);
+		dev_dbg(dev, "unmpa digest result buffer va (%pK) pa (%pad) len %u\n",
+			state->digest_result_buff,
+			&state->digest_result_dma_addr, digestsize);
 		memcpy(result,
 		       state->digest_result_buff,
 		       digestsize);
@@ -369,7 +362,7 @@ static void ssi_hash_update_complete(struct device *dev, void *ssi_req, void __i
 	struct ahash_request *req = (struct ahash_request *)ssi_req;
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 
-	SSI_LOG_DEBUG("req=%pK\n", req);
+	dev_dbg(dev, "req=%pK\n", req);
 
 	ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false);
 	req->base.complete(&req->base, 0);
@@ -383,7 +376,7 @@ static void ssi_hash_digest_complete(struct device *dev, void *ssi_req, void __i
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
 	u32 digestsize = crypto_ahash_digestsize(tfm);
 
-	SSI_LOG_DEBUG("req=%pK\n", req);
+	dev_dbg(dev, "req=%pK\n", req);
 
 	ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false);
 	ssi_hash_unmap_result(dev, state, digestsize, req->result);
@@ -399,7 +392,7 @@ static void ssi_hash_complete(struct device *dev, void *ssi_req, void __iomem *c
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
 	u32 digestsize = crypto_ahash_digestsize(tfm);
 
-	SSI_LOG_DEBUG("req=%pK\n", req);
+	dev_dbg(dev, "req=%pK\n", req);
 
 	ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false);
 	ssi_hash_unmap_result(dev, state, digestsize, req->result);
@@ -414,7 +407,7 @@ static int ssi_hash_digest(struct ahash_req_ctx *state,
 			   unsigned int nbytes, u8 *result,
 			   void *async_req)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	bool is_hmac = ctx->is_hmac;
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
@@ -423,20 +416,21 @@ static int ssi_hash_digest(struct ahash_req_ctx *state,
 	int idx = 0;
 	int rc = 0;
 
-	SSI_LOG_DEBUG("===== %s-digest (%d) ====\n", is_hmac ? "hmac" : "hash", nbytes);
+	dev_dbg(dev, "===== %s-digest (%d) ====\n", is_hmac ? "hmac" : "hash",
+		nbytes);
 
 	if (unlikely(ssi_hash_map_request(dev, state, ctx) != 0)) {
-		SSI_LOG_ERR("map_ahash_source() failed\n");
+		dev_err(dev, "map_ahash_source() failed\n");
 		return -ENOMEM;
 	}
 
 	if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
-		SSI_LOG_ERR("map_ahash_digest() failed\n");
+		dev_err(dev, "map_ahash_digest() failed\n");
 		return -ENOMEM;
 	}
 
 	if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1) != 0)) {
-		SSI_LOG_ERR("map_ahash_request_final() failed\n");
+		dev_err(dev, "map_ahash_request_final() failed\n");
 		return -ENOMEM;
 	}
 
@@ -553,7 +547,7 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
 	if (async_req) {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 		if (unlikely(rc != -EINPROGRESS)) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 			ssi_hash_unmap_result(dev, state, digestsize, result);
 			ssi_hash_unmap_request(dev, state, ctx);
@@ -561,7 +555,7 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
 	} else {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
 		if (rc != 0) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 		} else {
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, false);
@@ -579,14 +573,14 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
 			   unsigned int nbytes,
 			   void *async_req)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 	u32 idx = 0;
 	int rc;
 
-	SSI_LOG_DEBUG("===== %s-update (%d) ====\n", ctx->is_hmac ?
-					"hmac" : "hash", nbytes);
+	dev_dbg(dev, "===== %s-update (%d) ====\n", ctx->is_hmac ?
+		"hmac" : "hash", nbytes);
 
 	if (nbytes == 0) {
 		/* no real updates required */
@@ -596,12 +590,12 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
 	rc = ssi_buffer_mgr_map_hash_request_update(ctx->drvdata, state, src, nbytes, block_size);
 	if (unlikely(rc)) {
 		if (rc == 1) {
-			SSI_LOG_DEBUG(" data size not require HW update %x\n",
-				      nbytes);
+			dev_dbg(dev, " data size not require HW update %x\n",
+				nbytes);
 			/* No hardware updates are required */
 			return 0;
 		}
-		SSI_LOG_ERR("map_ahash_request_update() failed\n");
+		dev_err(dev, "map_ahash_request_update() failed\n");
 		return -ENOMEM;
 	}
 
@@ -653,13 +647,13 @@ static int ssi_hash_update(struct ahash_req_ctx *state,
 	if (async_req) {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 		if (unlikely(rc != -EINPROGRESS)) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 		}
 	} else {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
 		if (rc != 0) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 		} else {
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, false);
@@ -676,21 +670,22 @@ static int ssi_hash_finup(struct ahash_req_ctx *state,
 			  u8 *result,
 			  void *async_req)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	bool is_hmac = ctx->is_hmac;
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 	int idx = 0;
 	int rc;
 
-	SSI_LOG_DEBUG("===== %s-finup (%d) ====\n", is_hmac ? "hmac" : "hash", nbytes);
+	dev_dbg(dev, "===== %s-finup (%d) ====\n", is_hmac ? "hmac" : "hash",
+		nbytes);
 
 	if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1) != 0)) {
-		SSI_LOG_ERR("map_ahash_request_final() failed\n");
+		dev_err(dev, "map_ahash_request_final() failed\n");
 		return -ENOMEM;
 	}
 	if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
-		SSI_LOG_ERR("map_ahash_digest() failed\n");
+		dev_err(dev, "map_ahash_digest() failed\n");
 		return -ENOMEM;
 	}
 
@@ -783,14 +778,14 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
 	if (async_req) {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 		if (unlikely(rc != -EINPROGRESS)) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 			ssi_hash_unmap_result(dev, state, digestsize, result);
 		}
 	} else {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
 		if (rc != 0) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 			ssi_hash_unmap_result(dev, state, digestsize, result);
 		} else {
@@ -810,22 +805,23 @@ static int ssi_hash_final(struct ahash_req_ctx *state,
 			  u8 *result,
 			  void *async_req)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	bool is_hmac = ctx->is_hmac;
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 	int idx = 0;
 	int rc;
 
-	SSI_LOG_DEBUG("===== %s-final (%d) ====\n", is_hmac ? "hmac" : "hash", nbytes);
+	dev_dbg(dev, "===== %s-final (%d) ====\n", is_hmac ? "hmac" : "hash",
+		nbytes);
 
 	if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 0) != 0)) {
-		SSI_LOG_ERR("map_ahash_request_final() failed\n");
+		dev_err(dev, "map_ahash_request_final() failed\n");
 		return -ENOMEM;
 	}
 
 	if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
-		SSI_LOG_ERR("map_ahash_digest() failed\n");
+		dev_err(dev, "map_ahash_digest() failed\n");
 		return -ENOMEM;
 	}
 
@@ -927,14 +923,14 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
 	if (async_req) {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 		if (unlikely(rc != -EINPROGRESS)) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 			ssi_hash_unmap_result(dev, state, digestsize, result);
 		}
 	} else {
 		rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
 		if (rc != 0) {
-			SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+			dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 			ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
 			ssi_hash_unmap_result(dev, state, digestsize, result);
 		} else {
@@ -948,7 +944,7 @@ ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
 
 static int ssi_hash_init(struct ahash_req_ctx *state, struct ssi_hash_ctx *ctx)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	state->xcbc_count = 0;
 
@@ -970,10 +966,12 @@ static int ssi_hash_setkey(void *hash,
 	int i, idx = 0, rc = 0;
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 	ssi_sram_addr_t larval_addr;
-
-	 SSI_LOG_DEBUG("start keylen: %d", keylen);
+	struct device *dev;
 
 	ctx = crypto_ahash_ctx(((struct crypto_ahash *)hash));
+	dev = drvdata_to_dev(ctx->drvdata);
+	dev_dbg(dev, "start keylen: %d", keylen);
+
 	blocksize = crypto_tfm_alg_blocksize(&((struct crypto_ahash *)hash)->base);
 	digestsize = crypto_ahash_digestsize(((struct crypto_ahash *)hash));
 
@@ -989,18 +987,16 @@ static int ssi_hash_setkey(void *hash,
 
 	if (keylen != 0) {
 		ctx->key_params.key_dma_addr = dma_map_single(
-						&ctx->drvdata->plat_dev->dev,
-						(void *)key,
+						dev, (void *)key,
 						keylen, DMA_TO_DEVICE);
-		if (unlikely(dma_mapping_error(&ctx->drvdata->plat_dev->dev,
+		if (unlikely(dma_mapping_error(dev,
 					       ctx->key_params.key_dma_addr))) {
-			SSI_LOG_ERR("Mapping key va=0x%p len=%u for"
-				   " DMA failed\n", key, keylen);
+			dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
+				key, keylen);
 			return -ENOMEM;
 		}
-		SSI_LOG_DEBUG("mapping key-buffer: key_dma_addr=%pad "
-			     "keylen=%u\n", ctx->key_params.key_dma_addr,
-			     ctx->key_params.keylen);
+		dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n",
+			&ctx->key_params.key_dma_addr, ctx->key_params.keylen);
 
 		if (keylen > blocksize) {
 			/* Load hash initial state */
@@ -1079,7 +1075,7 @@ static int ssi_hash_setkey(void *hash,
 
 	rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 		goto out;
 	}
 
@@ -1139,12 +1135,10 @@ out:
 		crypto_ahash_set_flags((struct crypto_ahash *)hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
 
 	if (ctx->key_params.key_dma_addr) {
-		dma_unmap_single(&ctx->drvdata->plat_dev->dev,
-				 ctx->key_params.key_dma_addr,
+		dma_unmap_single(dev, ctx->key_params.key_dma_addr,
 				 ctx->key_params.keylen, DMA_TO_DEVICE);
-		SSI_LOG_DEBUG("Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
-			      ctx->key_params.key_dma_addr,
-			      ctx->key_params.keylen);
+		dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
+			&ctx->key_params.key_dma_addr, ctx->key_params.keylen);
 	}
 	return rc;
 }
@@ -1154,10 +1148,11 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash,
 {
 	struct ssi_crypto_req ssi_req = {};
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	int idx = 0, rc = 0;
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 
-	SSI_LOG_DEBUG("===== setkey (%d) ====\n", keylen);
+	dev_dbg(dev, "===== setkey (%d) ====\n", keylen);
 
 	switch (keylen) {
 	case AES_KEYSIZE_128:
@@ -1171,19 +1166,15 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash,
 	ctx->key_params.keylen = keylen;
 
 	ctx->key_params.key_dma_addr = dma_map_single(
-					&ctx->drvdata->plat_dev->dev,
-					(void *)key,
+					dev, (void *)key,
 					keylen, DMA_TO_DEVICE);
-	if (unlikely(dma_mapping_error(&ctx->drvdata->plat_dev->dev,
-				       ctx->key_params.key_dma_addr))) {
-		SSI_LOG_ERR("Mapping key va=0x%p len=%u for"
-			   " DMA failed\n", key, keylen);
+	if (unlikely(dma_mapping_error(dev, ctx->key_params.key_dma_addr))) {
+		dev_err(dev, "Mapping key va=0x%p len=%u for DMA failed\n",
+			key, keylen);
 		return -ENOMEM;
 	}
-	SSI_LOG_DEBUG("mapping key-buffer: key_dma_addr=%pad "
-		     "keylen=%u\n",
-		     ctx->key_params.key_dma_addr,
-		     ctx->key_params.keylen);
+	dev_dbg(dev, "mapping key-buffer: key_dma_addr=%pad keylen=%u\n",
+		&ctx->key_params.key_dma_addr, ctx->key_params.keylen);
 
 	ctx->is_hmac = true;
 	/* 1. Load the AES key */
@@ -1226,12 +1217,10 @@ static int ssi_xcbc_setkey(struct crypto_ahash *ahash,
 	if (rc != 0)
 		crypto_ahash_set_flags(ahash, CRYPTO_TFM_RES_BAD_KEY_LEN);
 
-	dma_unmap_single(&ctx->drvdata->plat_dev->dev,
-			 ctx->key_params.key_dma_addr,
+	dma_unmap_single(dev, ctx->key_params.key_dma_addr,
 			 ctx->key_params.keylen, DMA_TO_DEVICE);
-	SSI_LOG_DEBUG("Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
-		      ctx->key_params.key_dma_addr,
-		      ctx->key_params.keylen);
+	dev_dbg(dev, "Unmapped key-buffer: key_dma_addr=%pad keylen=%u\n",
+		&ctx->key_params.key_dma_addr, ctx->key_params.keylen);
 
 	return rc;
 }
@@ -1241,8 +1230,9 @@ static int ssi_cmac_setkey(struct crypto_ahash *ahash,
 			   const u8 *key, unsigned int keylen)
 {
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("===== setkey (%d) ====\n", keylen);
+	dev_dbg(dev, "===== setkey (%d) ====\n", keylen);
 
 	ctx->is_hmac = true;
 
@@ -1259,16 +1249,14 @@ static int ssi_cmac_setkey(struct crypto_ahash *ahash,
 
 	/* STAT_PHASE_1: Copy key to ctx */
 
-	dma_sync_single_for_cpu(&ctx->drvdata->plat_dev->dev,
-				ctx->opad_tmp_keys_dma_addr,
+	dma_sync_single_for_cpu(dev, ctx->opad_tmp_keys_dma_addr,
 				keylen, DMA_TO_DEVICE);
 
 	memcpy(ctx->opad_tmp_keys_buff, key, keylen);
 	if (keylen == 24)
 		memset(ctx->opad_tmp_keys_buff + 24, 0, CC_AES_KEY_SIZE_MAX - 24);
 
-	dma_sync_single_for_device(&ctx->drvdata->plat_dev->dev,
-				   ctx->opad_tmp_keys_dma_addr,
+	dma_sync_single_for_device(dev, ctx->opad_tmp_keys_dma_addr,
 				   keylen, DMA_TO_DEVICE);
 
 	ctx->key_params.keylen = keylen;
@@ -1279,23 +1267,21 @@ static int ssi_cmac_setkey(struct crypto_ahash *ahash,
 
 static void ssi_hash_free_ctx(struct ssi_hash_ctx *ctx)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	if (ctx->digest_buff_dma_addr != 0) {
 		dma_unmap_single(dev, ctx->digest_buff_dma_addr,
 				 sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("Unmapped digest-buffer: "
-			     "digest_buff_dma_addr=%pad\n",
-			      ctx->digest_buff_dma_addr);
+		dev_dbg(dev, "Unmapped digest-buffer: digest_buff_dma_addr=%pad\n",
+			&ctx->digest_buff_dma_addr);
 		ctx->digest_buff_dma_addr = 0;
 	}
 	if (ctx->opad_tmp_keys_dma_addr != 0) {
 		dma_unmap_single(dev, ctx->opad_tmp_keys_dma_addr,
 				 sizeof(ctx->opad_tmp_keys_buff),
 				 DMA_BIDIRECTIONAL);
-		SSI_LOG_DEBUG("Unmapped opad-digest: "
-			     "opad_tmp_keys_dma_addr=%pad\n",
-			      ctx->opad_tmp_keys_dma_addr);
+		dev_dbg(dev, "Unmapped opad-digest: opad_tmp_keys_dma_addr=%pad\n",
+			&ctx->opad_tmp_keys_dma_addr);
 		ctx->opad_tmp_keys_dma_addr = 0;
 	}
 
@@ -1304,30 +1290,30 @@ static void ssi_hash_free_ctx(struct ssi_hash_ctx *ctx)
 
 static int ssi_hash_alloc_ctx(struct ssi_hash_ctx *ctx)
 {
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	ctx->key_params.keylen = 0;
 
 	ctx->digest_buff_dma_addr = dma_map_single(dev, (void *)ctx->digest_buff, sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL);
 	if (dma_mapping_error(dev, ctx->digest_buff_dma_addr)) {
-		SSI_LOG_ERR("Mapping digest len %zu B at va=%pK for DMA failed\n",
-			    sizeof(ctx->digest_buff), ctx->digest_buff);
+		dev_err(dev, "Mapping digest len %zu B at va=%pK for DMA failed\n",
+			sizeof(ctx->digest_buff), ctx->digest_buff);
 		goto fail;
 	}
-	SSI_LOG_DEBUG("Mapped digest %zu B at va=%pK to dma=%pad\n",
-		      sizeof(ctx->digest_buff), ctx->digest_buff,
-		      ctx->digest_buff_dma_addr);
+	dev_dbg(dev, "Mapped digest %zu B at va=%pK to dma=%pad\n",
+		sizeof(ctx->digest_buff), ctx->digest_buff,
+		&ctx->digest_buff_dma_addr);
 
 	ctx->opad_tmp_keys_dma_addr = dma_map_single(dev, (void *)ctx->opad_tmp_keys_buff, sizeof(ctx->opad_tmp_keys_buff), DMA_BIDIRECTIONAL);
 	if (dma_mapping_error(dev, ctx->opad_tmp_keys_dma_addr)) {
-		SSI_LOG_ERR("Mapping opad digest %zu B at va=%pK for DMA failed\n",
-			    sizeof(ctx->opad_tmp_keys_buff),
-			    ctx->opad_tmp_keys_buff);
+		dev_err(dev, "Mapping opad digest %zu B at va=%pK for DMA failed\n",
+			sizeof(ctx->opad_tmp_keys_buff),
+			ctx->opad_tmp_keys_buff);
 		goto fail;
 	}
-	SSI_LOG_DEBUG("Mapped opad_tmp_keys %zu B at va=%pK to dma=%pad\n",
-		      sizeof(ctx->opad_tmp_keys_buff), ctx->opad_tmp_keys_buff,
-		      ctx->opad_tmp_keys_dma_addr);
+	dev_dbg(dev, "Mapped opad_tmp_keys %zu B at va=%pK to dma=%pad\n",
+		sizeof(ctx->opad_tmp_keys_buff), ctx->opad_tmp_keys_buff,
+		&ctx->opad_tmp_keys_dma_addr);
 
 	ctx->is_hmac = false;
 	return 0;
@@ -1361,8 +1347,9 @@ static int ssi_ahash_cra_init(struct crypto_tfm *tfm)
 static void ssi_hash_cra_exit(struct crypto_tfm *tfm)
 {
 	struct ssi_hash_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("ssi_hash_cra_exit");
+	dev_dbg(dev, "ssi_hash_cra_exit");
 	ssi_hash_free_ctx(ctx);
 }
 
@@ -1371,7 +1358,7 @@ static int ssi_mac_update(struct ahash_request *req)
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
@@ -1388,12 +1375,12 @@ static int ssi_mac_update(struct ahash_request *req)
 	rc = ssi_buffer_mgr_map_hash_request_update(ctx->drvdata, state, req->src, req->nbytes, block_size);
 	if (unlikely(rc)) {
 		if (rc == 1) {
-			SSI_LOG_DEBUG(" data size not require HW update %x\n",
-				      req->nbytes);
+			dev_dbg(dev, " data size not require HW update %x\n",
+				req->nbytes);
 			/* No hardware updates are required */
 			return 0;
 		}
-		SSI_LOG_ERR("map_ahash_request_update() failed\n");
+		dev_err(dev, "map_ahash_request_update() failed\n");
 		return -ENOMEM;
 	}
 
@@ -1420,7 +1407,7 @@ static int ssi_mac_update(struct ahash_request *req)
 
 	rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 	if (unlikely(rc != -EINPROGRESS)) {
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 		ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
 	}
 	return rc;
@@ -1431,7 +1418,7 @@ static int ssi_mac_final(struct ahash_request *req)
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 	int idx = 0;
@@ -1451,15 +1438,15 @@ static int ssi_mac_final(struct ahash_request *req)
 		key_len =  ctx->key_params.keylen;
 	}
 
-	SSI_LOG_DEBUG("===== final  xcbc reminder (%d) ====\n", rem_cnt);
+	dev_dbg(dev, "===== final  xcbc reminder (%d) ====\n", rem_cnt);
 
 	if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 0) != 0)) {
-		SSI_LOG_ERR("map_ahash_request_final() failed\n");
+		dev_err(dev, "map_ahash_request_final() failed\n");
 		return -ENOMEM;
 	}
 
 	if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
-		SSI_LOG_ERR("map_ahash_digest() failed\n");
+		dev_err(dev, "map_ahash_digest() failed\n");
 		return -ENOMEM;
 	}
 
@@ -1530,7 +1517,7 @@ static int ssi_mac_final(struct ahash_request *req)
 
 	rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 	if (unlikely(rc != -EINPROGRESS)) {
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 		ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
 		ssi_hash_unmap_result(dev, state, digestsize, req->result);
 	}
@@ -1542,7 +1529,7 @@ static int ssi_mac_finup(struct ahash_request *req)
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
 	int idx = 0;
@@ -1550,18 +1537,18 @@ static int ssi_mac_finup(struct ahash_request *req)
 	u32 key_len = 0;
 	u32 digestsize = crypto_ahash_digestsize(tfm);
 
-	SSI_LOG_DEBUG("===== finup xcbc(%d) ====\n", req->nbytes);
+	dev_dbg(dev, "===== finup xcbc(%d) ====\n", req->nbytes);
 	if (state->xcbc_count > 0 && req->nbytes == 0) {
-		SSI_LOG_DEBUG("No data to update. Call to fdx_mac_final\n");
+		dev_dbg(dev, "No data to update. Call to fdx_mac_final\n");
 		return ssi_mac_final(req);
 	}
 
 	if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 1) != 0)) {
-		SSI_LOG_ERR("map_ahash_request_final() failed\n");
+		dev_err(dev, "map_ahash_request_final() failed\n");
 		return -ENOMEM;
 	}
 	if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
-		SSI_LOG_ERR("map_ahash_digest() failed\n");
+		dev_err(dev, "map_ahash_digest() failed\n");
 		return -ENOMEM;
 	}
 
@@ -1601,7 +1588,7 @@ static int ssi_mac_finup(struct ahash_request *req)
 
 	rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 	if (unlikely(rc != -EINPROGRESS)) {
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 		ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
 		ssi_hash_unmap_result(dev, state, digestsize, req->result);
 	}
@@ -1613,7 +1600,7 @@ static int ssi_mac_digest(struct ahash_request *req)
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	u32 digestsize = crypto_ahash_digestsize(tfm);
 	struct ssi_crypto_req ssi_req = {};
 	struct cc_hw_desc desc[SSI_MAX_AHASH_SEQ_LEN];
@@ -1621,19 +1608,19 @@ static int ssi_mac_digest(struct ahash_request *req)
 	int idx = 0;
 	int rc;
 
-	SSI_LOG_DEBUG("===== -digest mac (%d) ====\n",  req->nbytes);
+	dev_dbg(dev, "===== -digest mac (%d) ====\n",  req->nbytes);
 
 	if (unlikely(ssi_hash_map_request(dev, state, ctx) != 0)) {
-		SSI_LOG_ERR("map_ahash_source() failed\n");
+		dev_err(dev, "map_ahash_source() failed\n");
 		return -ENOMEM;
 	}
 	if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
-		SSI_LOG_ERR("map_ahash_digest() failed\n");
+		dev_err(dev, "map_ahash_digest() failed\n");
 		return -ENOMEM;
 	}
 
 	if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 1) != 0)) {
-		SSI_LOG_ERR("map_ahash_request_final() failed\n");
+		dev_err(dev, "map_ahash_request_final() failed\n");
 		return -ENOMEM;
 	}
 
@@ -1673,7 +1660,7 @@ static int ssi_mac_digest(struct ahash_request *req)
 
 	rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
 	if (unlikely(rc != -EINPROGRESS)) {
-		SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+		dev_err(dev, "send_request() failed (rc=%d)\n", rc);
 		ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
 		ssi_hash_unmap_result(dev, state, digestsize, req->result);
 		ssi_hash_unmap_request(dev, state, ctx);
@@ -1727,8 +1714,9 @@ static int ssi_ahash_init(struct ahash_request *req)
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
-	SSI_LOG_DEBUG("===== init (%d) ====\n", req->nbytes);
+	dev_dbg(dev, "===== init (%d) ====\n", req->nbytes);
 
 	return ssi_hash_init(state, ctx);
 }
@@ -1737,7 +1725,7 @@ static int ssi_ahash_export(struct ahash_request *req, void *out)
 {
 	struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	u8 *curr_buff = state->buff_index ? state->buff1 : state->buff0;
 	u32 curr_buff_cnt = state->buff_index ? state->buff1_cnt :
@@ -1778,7 +1766,7 @@ static int ssi_ahash_import(struct ahash_request *req, const void *in)
 {
 	struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
 	struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
-	struct device *dev = &ctx->drvdata->plat_dev->dev;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 	struct ahash_req_ctx *state = ahash_request_ctx(req);
 	u32 tmp;
 	int rc;
@@ -2054,17 +2042,17 @@ static struct ssi_hash_template driver_hash[] = {
 };
 
 static struct ssi_hash_alg *
-ssi_hash_create_alg(struct ssi_hash_template *template, bool keyed)
+ssi_hash_create_alg(struct ssi_hash_template *template, struct device *dev,
+		    bool keyed)
 {
 	struct ssi_hash_alg *t_crypto_alg;
 	struct crypto_alg *alg;
 	struct ahash_alg *halg;
 
 	t_crypto_alg = kzalloc(sizeof(*t_crypto_alg), GFP_KERNEL);
-	if (!t_crypto_alg) {
-		SSI_LOG_ERR("failed to allocate t_crypto_alg\n");
+	if (!t_crypto_alg)
 		return ERR_PTR(-ENOMEM);
-	}
+
 
 	t_crypto_alg->ahash_alg = template->template_ahash;
 	halg = &t_crypto_alg->ahash_alg;
@@ -2107,6 +2095,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
 	ssi_sram_addr_t sram_buff_ofs = hash_handle->digest_len_sram_addr;
 	unsigned int larval_seq_len = 0;
 	struct cc_hw_desc larval_seq[CC_DIGEST_SIZE_MAX / sizeof(u32)];
+	struct device *dev = drvdata_to_dev(drvdata);
 	int rc = 0;
 #if (DX_DEV_SHA_MAX > 256)
 	int i;
@@ -2191,7 +2180,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
 	}
 	rc = send_request_init(drvdata, larval_seq, larval_seq_len);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("send_request() failed (rc = %d)\n", rc);
+		dev_err(dev, "send_request() failed (rc = %d)\n", rc);
 		goto init_digest_const_err;
 	}
 	larval_seq_len = 0;
@@ -2209,7 +2198,7 @@ int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
 	}
 	rc = send_request_init(drvdata, larval_seq, larval_seq_len);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("send_request() failed (rc = %d)\n", rc);
+		dev_err(dev, "send_request() failed (rc = %d)\n", rc);
 		goto init_digest_const_err;
 	}
 #endif
@@ -2223,17 +2212,15 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
 	struct ssi_hash_handle *hash_handle;
 	ssi_sram_addr_t sram_buff;
 	u32 sram_size_to_alloc;
+	struct device *dev = drvdata_to_dev(drvdata);
 	int rc = 0;
 	int alg;
 
 	hash_handle = kzalloc(sizeof(*hash_handle), GFP_KERNEL);
-	if (!hash_handle) {
-		SSI_LOG_ERR("kzalloc failed to allocate %zu B\n",
-			    sizeof(*hash_handle));
-		rc = -ENOMEM;
-		goto fail;
-	}
+	if (!hash_handle)
+		return -ENOMEM;
 
+	INIT_LIST_HEAD(&hash_handle->hash_list);
 	drvdata->hash_handle = hash_handle;
 
 	sram_size_to_alloc = sizeof(digest_len_init) +
@@ -2249,7 +2236,7 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
 
 	sram_buff = ssi_sram_mgr_alloc(drvdata, sram_size_to_alloc);
 	if (sram_buff == NULL_SRAM_ADDR) {
-		SSI_LOG_ERR("SRAM pool exhausted\n");
+		dev_err(dev, "SRAM pool exhausted\n");
 		rc = -ENOMEM;
 		goto fail;
 	}
@@ -2260,31 +2247,29 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
 	/*must be set before the alg registration as it is being used there*/
 	rc = ssi_hash_init_sram_digest_consts(drvdata);
 	if (unlikely(rc != 0)) {
-		SSI_LOG_ERR("Init digest CONST failed (rc=%d)\n", rc);
+		dev_err(dev, "Init digest CONST failed (rc=%d)\n", rc);
 		goto fail;
 	}
 
-	INIT_LIST_HEAD(&hash_handle->hash_list);
-
 	/* ahash registration */
 	for (alg = 0; alg < ARRAY_SIZE(driver_hash); alg++) {
 		struct ssi_hash_alg *t_alg;
 		int hw_mode = driver_hash[alg].hw_mode;
 
 		/* register hmac version */
-		t_alg = ssi_hash_create_alg(&driver_hash[alg], true);
+		t_alg = ssi_hash_create_alg(&driver_hash[alg], dev, true);
 		if (IS_ERR(t_alg)) {
 			rc = PTR_ERR(t_alg);
-			SSI_LOG_ERR("%s alg allocation failed\n",
-				    driver_hash[alg].driver_name);
+			dev_err(dev, "%s alg allocation failed\n",
+				driver_hash[alg].driver_name);
 			goto fail;
 		}
 		t_alg->drvdata = drvdata;
 
 		rc = crypto_register_ahash(&t_alg->ahash_alg);
 		if (unlikely(rc)) {
-			SSI_LOG_ERR("%s alg registration failed\n",
-				    driver_hash[alg].driver_name);
+			dev_err(dev, "%s alg registration failed\n",
+				driver_hash[alg].driver_name);
 			kfree(t_alg);
 			goto fail;
 		} else {
@@ -2297,19 +2282,19 @@ int ssi_hash_alloc(struct ssi_drvdata *drvdata)
 			continue;
 
 		/* register hash version */
-		t_alg = ssi_hash_create_alg(&driver_hash[alg], false);
+		t_alg = ssi_hash_create_alg(&driver_hash[alg], dev, false);
 		if (IS_ERR(t_alg)) {
 			rc = PTR_ERR(t_alg);
-			SSI_LOG_ERR("%s alg allocation failed\n",
-				    driver_hash[alg].driver_name);
+			dev_err(dev, "%s alg allocation failed\n",
+				driver_hash[alg].driver_name);
 			goto fail;
 		}
 		t_alg->drvdata = drvdata;
 
 		rc = crypto_register_ahash(&t_alg->ahash_alg);
 		if (unlikely(rc)) {
-			SSI_LOG_ERR("%s alg registration failed\n",
-				    driver_hash[alg].driver_name);
+			dev_err(dev, "%s alg registration failed\n",
+				driver_hash[alg].driver_name);
 			kfree(t_alg);
 			goto fail;
 		} else {
@@ -2443,6 +2428,7 @@ static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx,
 				      unsigned int *seq_size)
 {
 	unsigned int idx = *seq_size;
+	struct device *dev = drvdata_to_dev(ctx->drvdata);
 
 	if (likely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_DLLI)) {
 		hw_desc_init(&desc[idx]);
@@ -2453,7 +2439,7 @@ static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx,
 		idx++;
 	} else {
 		if (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL) {
-			SSI_LOG_DEBUG(" NULL mode\n");
+			dev_dbg(dev, " NULL mode\n");
 			/* nothing to build */
 			return;
 		}
@@ -2493,6 +2479,7 @@ ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, u32 mode)
 {
 	struct ssi_drvdata *_drvdata = (struct ssi_drvdata *)drvdata;
 	struct ssi_hash_handle *hash_handle = _drvdata->hash_handle;
+	struct device *dev = drvdata_to_dev(_drvdata);
 
 	switch (mode) {
 	case DRV_HASH_NULL:
@@ -2527,7 +2514,7 @@ ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, u32 mode)
 			sizeof(sha384_init));
 #endif
 	default:
-		SSI_LOG_ERR("Invalid hash mode (%d)\n", mode);
+		dev_err(dev, "Invalid hash mode (%d)\n", mode);
 	}
 
 	/*This is valid wrong value to avoid kernel crash*/
diff --git a/drivers/staging/ccree/ssi_ivgen.c b/drivers/staging/ccree/ssi_ivgen.c
index b01e03231947..3f082f41ae8f 100644
--- a/drivers/staging/ccree/ssi_ivgen.c
+++ b/drivers/staging/ccree/ssi_ivgen.c
@@ -193,12 +193,9 @@ int ssi_ivgen_init(struct ssi_drvdata *drvdata)
 	/* Allocate "this" context */
 	drvdata->ivgen_handle = kzalloc(sizeof(*drvdata->ivgen_handle),
 					GFP_KERNEL);
-	if (!drvdata->ivgen_handle) {
-		SSI_LOG_ERR("Not enough memory to allocate IVGEN context "
-			   "(%zu B)\n", sizeof(*drvdata->ivgen_handle));
-		rc = -ENOMEM;
-		goto out;
-	}
+	if (!drvdata->ivgen_handle)
+		return -ENOMEM;
+
 	ivgen_ctx = drvdata->ivgen_handle;
 
 	/* Allocate pool's header for intial enc. key/IV */
@@ -206,15 +203,15 @@ int ssi_ivgen_init(struct ssi_drvdata *drvdata)
 						  &ivgen_ctx->pool_meta_dma,
 						  GFP_KERNEL);
 	if (!ivgen_ctx->pool_meta) {
-		SSI_LOG_ERR("Not enough memory to allocate DMA of pool_meta "
-			   "(%u B)\n", SSI_IVPOOL_META_SIZE);
+		dev_err(device, "Not enough memory to allocate DMA of pool_meta (%u B)\n",
+			SSI_IVPOOL_META_SIZE);
 		rc = -ENOMEM;
 		goto out;
 	}
 	/* Allocate IV pool in SRAM */
 	ivgen_ctx->pool = ssi_sram_mgr_alloc(drvdata, SSI_IVPOOL_SIZE);
 	if (ivgen_ctx->pool == NULL_SRAM_ADDR) {
-		SSI_LOG_ERR("SRAM pool exhausted\n");
+		dev_err(device, "SRAM pool exhausted\n");
 		rc = -ENOMEM;
 		goto out;
 	}
@@ -248,6 +245,7 @@ int ssi_ivgen_getiv(
 {
 	struct ssi_ivgen_ctx *ivgen_ctx = drvdata->ivgen_handle;
 	unsigned int idx = *iv_seq_len;
+	struct device *dev = drvdata_to_dev(drvdata);
 	unsigned int t;
 
 	if ((iv_out_size != CC_AES_IV_SIZE) &&
@@ -291,7 +289,7 @@ int ssi_ivgen_getiv(
 	ivgen_ctx->next_iv_ofs += iv_out_size;
 
 	if ((SSI_IVPOOL_SIZE - ivgen_ctx->next_iv_ofs) < CC_AES_IV_SIZE) {
-		SSI_LOG_DEBUG("Pool exhausted, regenerating iv-pool\n");
+		dev_dbg(dev, "Pool exhausted, regenerating iv-pool\n");
 		/* pool is drained -regenerate it! */
 		return ssi_ivgen_generate_pool(ivgen_ctx, iv_seq, iv_seq_len);
 	}
diff --git a/drivers/staging/ccree/ssi_pm.c b/drivers/staging/ccree/ssi_pm.c
index 31325e6cd4b4..36a498098a70 100644
--- a/drivers/staging/ccree/ssi_pm.c
+++ b/drivers/staging/ccree/ssi_pm.c
@@ -40,11 +40,12 @@ int ssi_power_mgr_runtime_suspend(struct device *dev)
 		(struct ssi_drvdata *)dev_get_drvdata(dev);
 	int rc;
 
-	SSI_LOG_DEBUG("set HOST_POWER_DOWN_EN\n");
-	WRITE_REGISTER(drvdata->cc_base + CC_REG_OFFSET(HOST_RGF, HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE);
+	dev_dbg(dev, "set HOST_POWER_DOWN_EN\n");
+	cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_ENABLE);
 	rc = ssi_request_mgr_runtime_suspend_queue(drvdata);
 	if (rc != 0) {
-		SSI_LOG_ERR("ssi_request_mgr_runtime_suspend_queue (%x)\n", rc);
+		dev_err(dev, "ssi_request_mgr_runtime_suspend_queue (%x)\n",
+			rc);
 		return rc;
 	}
 	fini_cc_regs(drvdata);
@@ -58,24 +59,24 @@ int ssi_power_mgr_runtime_resume(struct device *dev)
 	struct ssi_drvdata *drvdata =
 		(struct ssi_drvdata *)dev_get_drvdata(dev);
 
-	SSI_LOG_DEBUG("unset HOST_POWER_DOWN_EN\n");
-	WRITE_REGISTER(drvdata->cc_base + CC_REG_OFFSET(HOST_RGF, HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE);
+	dev_dbg(dev, "unset HOST_POWER_DOWN_EN\n");
+	cc_iowrite(drvdata, CC_REG(HOST_POWER_DOWN_EN), POWER_DOWN_DISABLE);
 
 	rc = cc_clk_on(drvdata);
 	if (rc) {
-		SSI_LOG_ERR("failed getting clock back on. We're toast.\n");
+		dev_err(dev, "failed getting clock back on. We're toast.\n");
 		return rc;
 	}
 
 	rc = init_cc_regs(drvdata, false);
 	if (rc != 0) {
-		SSI_LOG_ERR("init_cc_regs (%x)\n", rc);
+		dev_err(dev, "init_cc_regs (%x)\n", rc);
 		return rc;
 	}
 
 	rc = ssi_request_mgr_runtime_resume_queue(drvdata);
 	if (rc != 0) {
-		SSI_LOG_ERR("ssi_request_mgr_runtime_resume_queue (%x)\n", rc);
+		dev_err(dev, "ssi_request_mgr_runtime_resume_queue (%x)\n", rc);
 		return rc;
 	}
 
@@ -109,7 +110,8 @@ int ssi_power_mgr_runtime_put_suspend(struct device *dev)
 		rc = pm_runtime_put_autosuspend(dev);
 	} else {
 		/* Something wrong happens*/
-		BUG();
+		dev_err(dev, "request to suspend already suspended queue");
+		rc = -EBUSY;
 	}
 	return rc;
 }
@@ -120,16 +122,17 @@ int ssi_power_mgr_init(struct ssi_drvdata *drvdata)
 {
 	int rc = 0;
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-	struct platform_device *plat_dev = drvdata->plat_dev;
+	struct device *dev = drvdata_to_dev(drvdata);
+
 	/* must be before the enabling to avoid resdundent suspending */
-	pm_runtime_set_autosuspend_delay(&plat_dev->dev, SSI_SUSPEND_TIMEOUT);
-	pm_runtime_use_autosuspend(&plat_dev->dev);
+	pm_runtime_set_autosuspend_delay(dev, SSI_SUSPEND_TIMEOUT);
+	pm_runtime_use_autosuspend(dev);
 	/* activate the PM module */
-	rc = pm_runtime_set_active(&plat_dev->dev);
+	rc = pm_runtime_set_active(dev);
 	if (rc != 0)
 		return rc;
 	/* enable the PM module*/
-	pm_runtime_enable(&plat_dev->dev);
+	pm_runtime_enable(dev);
 #endif
 	return rc;
 }
@@ -137,8 +140,6 @@ int ssi_power_mgr_init(struct ssi_drvdata *drvdata)
 void ssi_power_mgr_fini(struct ssi_drvdata *drvdata)
 {
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-	struct platform_device *plat_dev = drvdata->plat_dev;
-
-	pm_runtime_disable(&plat_dev->dev);
+	pm_runtime_disable(drvdata_to_dev(drvdata));
 #endif
 }
diff --git a/drivers/staging/ccree/ssi_request_mgr.c b/drivers/staging/ccree/ssi_request_mgr.c
index e5c2f92857f6..a8a7dc672d4c 100644
--- a/drivers/staging/ccree/ssi_request_mgr.c
+++ b/drivers/staging/ccree/ssi_request_mgr.c
@@ -49,7 +49,6 @@ struct ssi_request_mgr_handle {
 	dma_addr_t dummy_comp_buff_dma;
 	struct cc_hw_desc monitor_desc;
 
-	volatile unsigned long monitor_lock;
 #ifdef COMP_IN_WQ
 	struct workqueue_struct *workq;
 	struct delayed_work compwork;
@@ -69,19 +68,19 @@ static void comp_work_handler(struct work_struct *work);
 void request_mgr_fini(struct ssi_drvdata *drvdata)
 {
 	struct ssi_request_mgr_handle *req_mgr_h = drvdata->request_mgr_handle;
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	if (!req_mgr_h)
 		return; /* Not allocated */
 
 	if (req_mgr_h->dummy_comp_buff_dma != 0) {
-		dma_free_coherent(&drvdata->plat_dev->dev,
-				  sizeof(u32), req_mgr_h->dummy_comp_buff,
+		dma_free_coherent(dev, sizeof(u32), req_mgr_h->dummy_comp_buff,
 				  req_mgr_h->dummy_comp_buff_dma);
 	}
 
-	SSI_LOG_DEBUG("max_used_hw_slots=%d\n", (req_mgr_h->hw_queue_size -
+	dev_dbg(dev, "max_used_hw_slots=%d\n", (req_mgr_h->hw_queue_size -
 						req_mgr_h->min_free_hw_slots));
-	SSI_LOG_DEBUG("max_used_sw_slots=%d\n", req_mgr_h->max_used_sw_slots);
+	dev_dbg(dev, "max_used_sw_slots=%d\n", req_mgr_h->max_used_sw_slots);
 
 #ifdef COMP_IN_WQ
 	flush_workqueue(req_mgr_h->workq);
@@ -98,6 +97,7 @@ void request_mgr_fini(struct ssi_drvdata *drvdata)
 int request_mgr_init(struct ssi_drvdata *drvdata)
 {
 	struct ssi_request_mgr_handle *req_mgr_h;
+	struct device *dev = drvdata_to_dev(drvdata);
 	int rc = 0;
 
 	req_mgr_h = kzalloc(sizeof(*req_mgr_h), GFP_KERNEL);
@@ -110,24 +110,24 @@ int request_mgr_init(struct ssi_drvdata *drvdata)
 
 	spin_lock_init(&req_mgr_h->hw_lock);
 #ifdef COMP_IN_WQ
-	SSI_LOG_DEBUG("Initializing completion workqueue\n");
+	dev_dbg(dev, "Initializing completion workqueue\n");
 	req_mgr_h->workq = create_singlethread_workqueue("arm_cc7x_wq");
 	if (unlikely(!req_mgr_h->workq)) {
-		SSI_LOG_ERR("Failed creating work queue\n");
+		dev_err(dev, "Failed creating work queue\n");
 		rc = -ENOMEM;
 		goto req_mgr_init_err;
 	}
 	INIT_DELAYED_WORK(&req_mgr_h->compwork, comp_work_handler);
 #else
-	SSI_LOG_DEBUG("Initializing completion tasklet\n");
+	dev_dbg(dev, "Initializing completion tasklet\n");
 	tasklet_init(&req_mgr_h->comptask, comp_handler, (unsigned long)drvdata);
 #endif
-	req_mgr_h->hw_queue_size = READ_REGISTER(drvdata->cc_base +
-		CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_SRAM_SIZE));
-	SSI_LOG_DEBUG("hw_queue_size=0x%08X\n", req_mgr_h->hw_queue_size);
+	req_mgr_h->hw_queue_size = cc_ioread(drvdata,
+					     CC_REG(DSCRPTR_QUEUE_SRAM_SIZE));
+	dev_dbg(dev, "hw_queue_size=0x%08X\n", req_mgr_h->hw_queue_size);
 	if (req_mgr_h->hw_queue_size < MIN_HW_QUEUE_SIZE) {
-		SSI_LOG_ERR("Invalid HW queue size = %u (Min. required is %u)\n",
-			    req_mgr_h->hw_queue_size, MIN_HW_QUEUE_SIZE);
+		dev_err(dev, "Invalid HW queue size = %u (Min. required is %u)\n",
+			req_mgr_h->hw_queue_size, MIN_HW_QUEUE_SIZE);
 		rc = -ENOMEM;
 		goto req_mgr_init_err;
 	}
@@ -135,13 +135,12 @@ int request_mgr_init(struct ssi_drvdata *drvdata)
 	req_mgr_h->max_used_sw_slots = 0;
 
 	/* Allocate DMA word for "dummy" completion descriptor use */
-	req_mgr_h->dummy_comp_buff = dma_alloc_coherent(&drvdata->plat_dev->dev,
-							sizeof(u32),
+	req_mgr_h->dummy_comp_buff = dma_alloc_coherent(dev, sizeof(u32),
 							&req_mgr_h->dummy_comp_buff_dma,
 							GFP_KERNEL);
 	if (!req_mgr_h->dummy_comp_buff) {
-		SSI_LOG_ERR("Not enough memory to allocate DMA (%zu) dropped "
-			   "buffer\n", sizeof(u32));
+		dev_err(dev, "Not enough memory to allocate DMA (%zu) dropped buffer\n",
+			sizeof(u32));
 		rc = -ENOMEM;
 		goto req_mgr_init_err;
 	}
@@ -168,17 +167,17 @@ static inline void enqueue_seq(
 	int i;
 
 	for (i = 0; i < seq_len; i++) {
-		writel_relaxed(seq[i].word[0], (volatile void __iomem *)(cc_base + CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_WORD0)));
-		writel_relaxed(seq[i].word[1], (volatile void __iomem *)(cc_base + CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_WORD0)));
-		writel_relaxed(seq[i].word[2], (volatile void __iomem *)(cc_base + CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_WORD0)));
-		writel_relaxed(seq[i].word[3], (volatile void __iomem *)(cc_base + CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_WORD0)));
-		writel_relaxed(seq[i].word[4], (volatile void __iomem *)(cc_base + CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_WORD0)));
+		writel_relaxed(seq[i].word[0], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0)));
+		writel_relaxed(seq[i].word[1], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0)));
+		writel_relaxed(seq[i].word[2], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0)));
+		writel_relaxed(seq[i].word[3], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0)));
+		writel_relaxed(seq[i].word[4], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0)));
 		wmb();
-		writel_relaxed(seq[i].word[5], (volatile void __iomem *)(cc_base + CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_WORD0)));
+		writel_relaxed(seq[i].word[5], (volatile void __iomem *)(cc_base + CC_REG(DSCRPTR_QUEUE_WORD0)));
 #ifdef DX_DUMP_DESCS
-		SSI_LOG_DEBUG("desc[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X\n", i,
-			      seq[i].word[0], seq[i].word[1], seq[i].word[2],
-			      seq[i].word[3], seq[i].word[4], seq[i].word[5]);
+		dev_dbg(dev, "desc[%02d]: 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X 0x%08X\n",
+			i, seq[i].word[0], seq[i].word[1], seq[i].word[2],
+			seq[i].word[3], seq[i].word[4], seq[i].word[5]);
 #endif
 	}
 }
@@ -198,11 +197,12 @@ static void request_mgr_complete(struct device *dev, void *dx_compl_h, void __io
 }
 
 static inline int request_mgr_queues_status_check(
+		struct ssi_drvdata *drvdata,
 		struct ssi_request_mgr_handle *req_mgr_h,
-		void __iomem *cc_base,
 		unsigned int total_seq_len)
 {
 	unsigned long poll_queue;
+	struct device *dev = drvdata_to_dev(drvdata);
 
 	/* SW queue is checked only once as it will not
 	 * be chaned during the poll becasue the spinlock_bh
@@ -211,8 +211,8 @@ static inline int request_mgr_queues_status_check(
 	if (unlikely(((req_mgr_h->req_queue_head + 1) &
 		      (MAX_REQUEST_QUEUE_SIZE - 1)) ==
 		     req_mgr_h->req_queue_tail)) {
-		SSI_LOG_ERR("SW FIFO is full. req_queue_head=%d sw_fifo_len=%d\n",
-			    req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE);
+		dev_err(dev, "SW FIFO is full. req_queue_head=%d sw_fifo_len=%d\n",
+			req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE);
 		return -EBUSY;
 	}
 
@@ -222,8 +222,7 @@ static inline int request_mgr_queues_status_check(
 	/* Wait for space in HW queue. Poll constant num of iterations. */
 	for (poll_queue = 0; poll_queue < SSI_MAX_POLL_ITER ; poll_queue++) {
 		req_mgr_h->q_free_slots =
-			CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL,
-							   DSCRPTR_QUEUE_CONTENT));
+			cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT));
 		if (unlikely(req_mgr_h->q_free_slots <
 						req_mgr_h->min_free_hw_slots)) {
 			req_mgr_h->min_free_hw_slots = req_mgr_h->q_free_slots;
@@ -234,16 +233,13 @@ static inline int request_mgr_queues_status_check(
 			return 0;
 		}
 
-		SSI_LOG_DEBUG("HW FIFO is full. q_free_slots=%d total_seq_len=%d\n",
-			      req_mgr_h->q_free_slots, total_seq_len);
+		dev_dbg(dev, "HW FIFO is full. q_free_slots=%d total_seq_len=%d\n",
+			req_mgr_h->q_free_slots, total_seq_len);
 	}
 	/* No room in the HW queue try again later */
-	SSI_LOG_DEBUG("HW FIFO full, timeout. req_queue_head=%d "
-		   "sw_fifo_len=%d q_free_slots=%d total_seq_len=%d\n",
-		     req_mgr_h->req_queue_head,
-		   MAX_REQUEST_QUEUE_SIZE,
-		   req_mgr_h->q_free_slots,
-		   total_seq_len);
+	dev_dbg(dev, "HW FIFO full, timeout. req_queue_head=%d sw_fifo_len=%d q_free_slots=%d total_seq_len=%d\n",
+		req_mgr_h->req_queue_head, MAX_REQUEST_QUEUE_SIZE,
+		req_mgr_h->q_free_slots, total_seq_len);
 	return -EAGAIN;
 }
 
@@ -270,16 +266,17 @@ int send_request(
 	unsigned int iv_seq_len = 0;
 	unsigned int total_seq_len = len; /*initial sequence length*/
 	struct cc_hw_desc iv_seq[SSI_IVPOOL_SEQ_LEN];
+	struct device *dev = drvdata_to_dev(drvdata);
 	int rc;
 	unsigned int max_required_seq_len = (total_seq_len +
 					((ssi_req->ivgen_dma_addr_len == 0) ? 0 :
 					SSI_IVPOOL_SEQ_LEN) +
-					((is_dout == 0) ? 1 : 0));
+					(!is_dout ? 1 : 0));
 
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-	rc = ssi_power_mgr_runtime_get(&drvdata->plat_dev->dev);
+	rc = ssi_power_mgr_runtime_get(dev);
 	if (rc != 0) {
-		SSI_LOG_ERR("ssi_power_mgr_runtime_get returned %x\n", rc);
+		dev_err(dev, "ssi_power_mgr_runtime_get returned %x\n", rc);
 		return rc;
 	}
 #endif
@@ -291,7 +288,7 @@ int send_request(
 		 * in case iv gen add the max size and in case of no dout add 1
 		 * for the internal completion descriptor
 		 */
-		rc = request_mgr_queues_status_check(req_mgr_h, cc_base,
+		rc = request_mgr_queues_status_check(drvdata, req_mgr_h,
 						     max_required_seq_len);
 		if (likely(rc == 0))
 			/* There is enough place in the queue */
@@ -304,7 +301,7 @@ int send_request(
 			 * (SW queue is full)
 			 */
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-			ssi_power_mgr_runtime_put_suspend(&drvdata->plat_dev->dev);
+			ssi_power_mgr_runtime_put_suspend(dev);
 #endif
 			return rc;
 		}
@@ -324,12 +321,12 @@ int send_request(
 	}
 
 	if (ssi_req->ivgen_dma_addr_len > 0) {
-		SSI_LOG_DEBUG("Acquire IV from pool into %d DMA addresses %pad, %pad, %pad, IV-size=%u\n",
-			      ssi_req->ivgen_dma_addr_len,
-			      ssi_req->ivgen_dma_addr[0],
-			      ssi_req->ivgen_dma_addr[1],
-			      ssi_req->ivgen_dma_addr[2],
-			      ssi_req->ivgen_size);
+		dev_dbg(dev, "Acquire IV from pool into %d DMA addresses %pad, %pad, %pad, IV-size=%u\n",
+			ssi_req->ivgen_dma_addr_len,
+			&ssi_req->ivgen_dma_addr[0],
+			&ssi_req->ivgen_dma_addr[1],
+			&ssi_req->ivgen_dma_addr[2],
+			ssi_req->ivgen_size);
 
 		/* Acquire IV from pool */
 		rc = ssi_ivgen_getiv(drvdata, ssi_req->ivgen_dma_addr,
@@ -337,10 +334,10 @@ int send_request(
 				     ssi_req->ivgen_size, iv_seq, &iv_seq_len);
 
 		if (unlikely(rc != 0)) {
-			SSI_LOG_ERR("Failed to generate IV (rc=%d)\n", rc);
+			dev_err(dev, "Failed to generate IV (rc=%d)\n", rc);
 			spin_unlock_bh(&req_mgr_h->hw_lock);
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-			ssi_power_mgr_runtime_put_suspend(&drvdata->plat_dev->dev);
+			ssi_power_mgr_runtime_put_suspend(dev);
 #endif
 			return rc;
 		}
@@ -357,7 +354,7 @@ int send_request(
 	req_mgr_h->req_queue_head = (req_mgr_h->req_queue_head + 1) & (MAX_REQUEST_QUEUE_SIZE - 1);
 	/* TODO: Use circ_buf.h ? */
 
-	SSI_LOG_DEBUG("Enqueue request head=%u\n", req_mgr_h->req_queue_head);
+	dev_dbg(dev, "Enqueue request head=%u\n", req_mgr_h->req_queue_head);
 
 #ifdef FLUSH_CACHE_ALL
 	flush_cache_all();
@@ -369,11 +366,16 @@ int send_request(
 	enqueue_seq(cc_base, &req_mgr_h->compl_desc, (is_dout ? 0 : 1));
 
 	if (unlikely(req_mgr_h->q_free_slots < total_seq_len)) {
-		/*This means that there was a problem with the resume*/
-		BUG();
+		/* This situation should never occur. Maybe indicating problem
+		 * with resuming power. Set the free slot count to 0 and hope
+		 * for the best.
+		 */
+		dev_err(dev, "HW free slot count mismatch.");
+		req_mgr_h->q_free_slots = 0;
+	} else {
+		/* Update the free slots in HW queue */
+		req_mgr_h->q_free_slots -= total_seq_len;
 	}
-	/* Update the free slots in HW queue */
-	req_mgr_h->q_free_slots -= total_seq_len;
 
 	spin_unlock_bh(&req_mgr_h->hw_lock);
 
@@ -383,10 +385,9 @@ int send_request(
 		 */
 		wait_for_completion(&ssi_req->seq_compl);
 		return 0;
-	} else {
-		/* Operation still in process */
-		return -EINPROGRESS;
 	}
+	/* Operation still in process */
+	return -EINPROGRESS;
 }
 
 /*!
@@ -409,7 +410,8 @@ int send_request_init(
 	int rc = 0;
 
 	/* Wait for space in HW and SW FIFO. Poll for as much as FIFO_TIMEOUT. */
-	rc = request_mgr_queues_status_check(req_mgr_h, cc_base, total_seq_len);
+	rc = request_mgr_queues_status_check(drvdata, req_mgr_h,
+					     total_seq_len);
 	if (unlikely(rc != 0))
 		return rc;
 
@@ -418,8 +420,8 @@ int send_request_init(
 	enqueue_seq(cc_base, desc, len);
 
 	/* Update the free slots in HW queue */
-	req_mgr_h->q_free_slots = CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL,
-								     DSCRPTR_QUEUE_CONTENT));
+	req_mgr_h->q_free_slots =
+		cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT));
 
 	return 0;
 }
@@ -448,7 +450,7 @@ static void comp_work_handler(struct work_struct *work)
 static void proc_completions(struct ssi_drvdata *drvdata)
 {
 	struct ssi_crypto_req *ssi_req;
-	struct platform_device *plat_dev = drvdata->plat_dev;
+	struct device *dev = drvdata_to_dev(drvdata);
 	struct ssi_request_mgr_handle *request_mgr_handle =
 						drvdata->request_mgr_handle;
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
@@ -460,8 +462,13 @@ static void proc_completions(struct ssi_drvdata *drvdata)
 
 		/* Dequeue request */
 		if (unlikely(request_mgr_handle->req_queue_head == request_mgr_handle->req_queue_tail)) {
-			SSI_LOG_ERR("Request queue is empty req_queue_head==req_queue_tail==%u\n", request_mgr_handle->req_queue_head);
-			BUG();
+			/* We are supposed to handle a completion but our
+			 * queue is empty. This is not normal. Return and
+			 * hope for the best.
+			 */
+			dev_err(dev, "Request queue is empty head == tail %u\n",
+				request_mgr_handle->req_queue_head);
+			break;
 		}
 
 		ssi_req = &request_mgr_handle->req_queue[request_mgr_handle->req_queue_tail];
@@ -476,39 +483,40 @@ static void proc_completions(struct ssi_drvdata *drvdata)
 			u32 axi_err;
 			int i;
 
-			SSI_LOG_INFO("Delay\n");
+			dev_info(dev, "Delay\n");
 			for (i = 0; i < 1000000; i++)
-				axi_err = READ_REGISTER(drvdata->cc_base + CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_ERR));
+				axi_err = cc_ioread(drvdata,
+						    CC_REG(AXIM_MON_ERR));
 		}
 #endif /* COMPLETION_DELAY */
 
 		if (likely(ssi_req->user_cb))
-			ssi_req->user_cb(&plat_dev->dev, ssi_req->user_arg, drvdata->cc_base);
+			ssi_req->user_cb(dev, ssi_req->user_arg,
+					 drvdata->cc_base);
 		request_mgr_handle->req_queue_tail = (request_mgr_handle->req_queue_tail + 1) & (MAX_REQUEST_QUEUE_SIZE - 1);
-		SSI_LOG_DEBUG("Dequeue request tail=%u\n", request_mgr_handle->req_queue_tail);
-		SSI_LOG_DEBUG("Request completed. axi_completed=%d\n", request_mgr_handle->axi_completed);
+		dev_dbg(dev, "Dequeue request tail=%u\n",
+			request_mgr_handle->req_queue_tail);
+		dev_dbg(dev, "Request completed. axi_completed=%d\n",
+			request_mgr_handle->axi_completed);
 #if defined(CONFIG_PM_RUNTIME) || defined(CONFIG_PM_SLEEP)
-		rc = ssi_power_mgr_runtime_put_suspend(&plat_dev->dev);
+		rc = ssi_power_mgr_runtime_put_suspend(dev);
 		if (rc != 0)
-			SSI_LOG_ERR("Failed to set runtime suspension %d\n", rc);
+			dev_err(dev, "Failed to set runtime suspension %d\n",
+				rc);
 #endif
 	}
 }
 
-static inline u32 cc_axi_comp_count(void __iomem *cc_base)
+static inline u32 cc_axi_comp_count(struct ssi_drvdata *drvdata)
 {
-	/* The CC_HAL_READ_REGISTER macro implictly requires and uses
-	 * a base MMIO register address variable named cc_base.
-	 */
 	return FIELD_GET(AXIM_MON_COMP_VALUE,
-			 CC_HAL_READ_REGISTER(AXIM_MON_BASE_OFFSET));
+			 cc_ioread(drvdata, CC_REG(AXIM_MON_COMP)));
 }
 
 /* Deferred service handler, run as interrupt-fired tasklet */
 static void comp_handler(unsigned long devarg)
 {
 	struct ssi_drvdata *drvdata = (struct ssi_drvdata *)devarg;
-	void __iomem *cc_base = drvdata->cc_base;
 	struct ssi_request_mgr_handle *request_mgr_handle =
 						drvdata->request_mgr_handle;
 
@@ -517,12 +525,16 @@ static void comp_handler(unsigned long devarg)
 	irq = (drvdata->irq & SSI_COMP_IRQ_MASK);
 
 	if (irq & SSI_COMP_IRQ_MASK) {
-		/* To avoid the interrupt from firing as we unmask it, we clear it now */
-		CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_ICR), SSI_COMP_IRQ_MASK);
+		/* To avoid the interrupt from firing as we unmask it,
+		 * we clear it now
+		 */
+		cc_iowrite(drvdata, CC_REG(HOST_ICR), SSI_COMP_IRQ_MASK);
 
-		/* Avoid race with above clear: Test completion counter once more */
+		/* Avoid race with above clear: Test completion counter
+		 * once more
+		 */
 		request_mgr_handle->axi_completed +=
-				cc_axi_comp_count(cc_base);
+				cc_axi_comp_count(drvdata);
 
 		while (request_mgr_handle->axi_completed) {
 			do {
@@ -531,20 +543,21 @@ static void comp_handler(unsigned long devarg)
 				 * request_mgr_handle->axi_completed is 0.
 				 */
 				request_mgr_handle->axi_completed =
-						cc_axi_comp_count(cc_base);
+						cc_axi_comp_count(drvdata);
 			} while (request_mgr_handle->axi_completed > 0);
 
-			/* To avoid the interrupt from firing as we unmask it, we clear it now */
-			CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_ICR), SSI_COMP_IRQ_MASK);
+			cc_iowrite(drvdata, CC_REG(HOST_ICR),
+				   SSI_COMP_IRQ_MASK);
 
-			/* Avoid race with above clear: Test completion counter once more */
 			request_mgr_handle->axi_completed +=
-					cc_axi_comp_count(cc_base);
+					cc_axi_comp_count(drvdata);
 		}
 	}
-	/* after verifing that there is nothing to do, Unmask AXI completion interrupt */
-	CC_HAL_WRITE_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR),
-			      CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IMR)) & ~irq);
+	/* after verifing that there is nothing to do,
+	 * unmask AXI completion interrupt
+	 */
+	cc_iowrite(drvdata, CC_REG(HOST_IMR),
+		   cc_ioread(drvdata, CC_REG(HOST_IMR)) & ~irq);
 }
 
 /*
diff --git a/drivers/staging/ccree/ssi_sram_mgr.c b/drivers/staging/ccree/ssi_sram_mgr.c
index f11116afe89a..07260d168c91 100644
--- a/drivers/staging/ccree/ssi_sram_mgr.c
+++ b/drivers/staging/ccree/ssi_sram_mgr.c
@@ -50,28 +50,14 @@ void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata)
  */
 int ssi_sram_mgr_init(struct ssi_drvdata *drvdata)
 {
-	struct ssi_sram_mgr_ctx *smgr_ctx;
-	int rc;
-
 	/* Allocate "this" context */
-	drvdata->sram_mgr_handle = kzalloc(
-			sizeof(struct ssi_sram_mgr_ctx), GFP_KERNEL);
-	if (!drvdata->sram_mgr_handle) {
-		SSI_LOG_ERR("Not enough memory to allocate SRAM_MGR ctx (%zu)\n",
-			    sizeof(struct ssi_sram_mgr_ctx));
-		rc = -ENOMEM;
-		goto out;
-	}
-	smgr_ctx = drvdata->sram_mgr_handle;
+	drvdata->sram_mgr_handle = kzalloc(sizeof(struct ssi_sram_mgr_ctx),
+					   GFP_KERNEL);
 
-	/* Pool starts at start of SRAM */
-	smgr_ctx->sram_free_offset = 0;
+	if (!drvdata->sram_mgr_handle)
+		return -ENOMEM;
 
 	return 0;
-
-out:
-	ssi_sram_mgr_fini(drvdata);
-	return rc;
 }
 
 /*!
@@ -86,22 +72,23 @@ out:
 ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, u32 size)
 {
 	struct ssi_sram_mgr_ctx *smgr_ctx = drvdata->sram_mgr_handle;
+	struct device *dev = drvdata_to_dev(drvdata);
 	ssi_sram_addr_t p;
 
 	if (unlikely((size & 0x3) != 0)) {
-		SSI_LOG_ERR("Requested buffer size (%u) is not multiple of 4",
-			    size);
+		dev_err(dev, "Requested buffer size (%u) is not multiple of 4",
+			size);
 		return NULL_SRAM_ADDR;
 	}
 	if (unlikely(size > (SSI_CC_SRAM_SIZE - smgr_ctx->sram_free_offset))) {
-		SSI_LOG_ERR("Not enough space to allocate %u B (at offset %llu)\n",
-			    size, smgr_ctx->sram_free_offset);
+		dev_err(dev, "Not enough space to allocate %u B (at offset %llu)\n",
+			size, smgr_ctx->sram_free_offset);
 		return NULL_SRAM_ADDR;
 	}
 
 	p = smgr_ctx->sram_free_offset;
 	smgr_ctx->sram_free_offset += size;
-	SSI_LOG_DEBUG("Allocated %u B @ %u\n", size, (unsigned int)p);
+	dev_dbg(dev, "Allocated %u B @ %u\n", size, (unsigned int)p);
 	return p;
 }
 
diff --git a/drivers/staging/ccree/ssi_sysfs.c b/drivers/staging/ccree/ssi_sysfs.c
index 0655658bba4d..5d39f15cdb59 100644
--- a/drivers/staging/ccree/ssi_sysfs.c
+++ b/drivers/staging/ccree/ssi_sysfs.c
@@ -24,277 +24,22 @@
 
 static struct ssi_drvdata *sys_get_drvdata(void);
 
-#ifdef CC_CYCLE_COUNT
-
-#include <asm/timex.h>
-
-struct stat_item {
-	unsigned int min;
-	unsigned int max;
-	cycles_t sum;
-	unsigned int count;
-};
-
-struct stat_name {
-	const char *op_type_name;
-	const char *stat_phase_name[MAX_STAT_PHASES];
-};
-
-static struct stat_name stat_name_db[MAX_STAT_OP_TYPES] = {
-	{
-		/* STAT_OP_TYPE_NULL */
-		.op_type_name = "NULL",
-		.stat_phase_name = {NULL},
-	},
-	{
-		.op_type_name = "Encode",
-		.stat_phase_name[STAT_PHASE_0] = "Init and sanity checks",
-		.stat_phase_name[STAT_PHASE_1] = "Map buffers",
-		.stat_phase_name[STAT_PHASE_2] = "Create sequence",
-		.stat_phase_name[STAT_PHASE_3] = "Send Request",
-		.stat_phase_name[STAT_PHASE_4] = "HW-Q push",
-		.stat_phase_name[STAT_PHASE_5] = "Sequence completion",
-		.stat_phase_name[STAT_PHASE_6] = "HW cycles",
-	},
-	{	.op_type_name = "Decode",
-		.stat_phase_name[STAT_PHASE_0] = "Init and sanity checks",
-		.stat_phase_name[STAT_PHASE_1] = "Map buffers",
-		.stat_phase_name[STAT_PHASE_2] = "Create sequence",
-		.stat_phase_name[STAT_PHASE_3] = "Send Request",
-		.stat_phase_name[STAT_PHASE_4] = "HW-Q push",
-		.stat_phase_name[STAT_PHASE_5] = "Sequence completion",
-		.stat_phase_name[STAT_PHASE_6] = "HW cycles",
-	},
-	{	.op_type_name = "Setkey",
-		.stat_phase_name[STAT_PHASE_0] = "Init and sanity checks",
-		.stat_phase_name[STAT_PHASE_1] = "Copy key to ctx",
-		.stat_phase_name[STAT_PHASE_2] = "Create sequence",
-		.stat_phase_name[STAT_PHASE_3] = "Send Request",
-		.stat_phase_name[STAT_PHASE_4] = "HW-Q push",
-		.stat_phase_name[STAT_PHASE_5] = "Sequence completion",
-		.stat_phase_name[STAT_PHASE_6] = "HW cycles",
-	},
-	{
-		.op_type_name = "Generic",
-		.stat_phase_name[STAT_PHASE_0] = "Interrupt",
-		.stat_phase_name[STAT_PHASE_1] = "ISR-to-Tasklet",
-		.stat_phase_name[STAT_PHASE_2] = "Tasklet start-to-end",
-		.stat_phase_name[STAT_PHASE_3] = "Tasklet:user_cb()",
-		.stat_phase_name[STAT_PHASE_4] = "Tasklet:dx_X_complete() - w/o X_complete()",
-		.stat_phase_name[STAT_PHASE_5] = "",
-		.stat_phase_name[STAT_PHASE_6] = "HW cycles",
-	}
-};
-
-/*
- * Structure used to create a directory
- * and its attributes in sysfs.
- */
-struct sys_dir {
-	struct kobject *sys_dir_kobj;
-	struct attribute_group sys_dir_attr_group;
-	struct attribute **sys_dir_attr_list;
-	u32 num_of_attrs;
-	struct ssi_drvdata *drvdata; /* Associated driver context */
-};
-
-/* top level directory structures */
-struct sys_dir sys_top_dir;
-
-static DEFINE_SPINLOCK(stat_lock);
-
-/* List of DBs */
-static struct stat_item stat_host_db[MAX_STAT_OP_TYPES][MAX_STAT_PHASES];
-static struct stat_item stat_cc_db[MAX_STAT_OP_TYPES][MAX_STAT_PHASES];
-
-static void init_db(struct stat_item item[MAX_STAT_OP_TYPES][MAX_STAT_PHASES])
-{
-	unsigned int i, j;
-
-	/* Clear db */
-	for (i = 0; i < MAX_STAT_OP_TYPES; i++) {
-		for (j = 0; j < MAX_STAT_PHASES; j++) {
-			item[i][j].min = 0xFFFFFFFF;
-			item[i][j].max = 0;
-			item[i][j].sum = 0;
-			item[i][j].count = 0;
-		}
-	}
-}
-
-static void update_db(struct stat_item *item, unsigned int result)
-{
-	item->count++;
-	item->sum += result;
-	if (result < item->min)
-		item->min = result;
-	if (result > item->max)
-		item->max = result;
-}
-
-static void display_db(struct stat_item item[MAX_STAT_OP_TYPES][MAX_STAT_PHASES])
-{
-	unsigned int i, j;
-	u64 avg;
-
-	for (i = STAT_OP_TYPE_ENCODE; i < MAX_STAT_OP_TYPES; i++) {
-		for (j = 0; j < MAX_STAT_PHASES; j++) {
-			if (item[i][j].count > 0) {
-				avg = (u64)item[i][j].sum;
-				do_div(avg, item[i][j].count);
-				SSI_LOG_ERR("%s, %s: min=%d avg=%d max=%d sum=%lld count=%d\n",
-					    stat_name_db[i].op_type_name,
-					    stat_name_db[i].stat_phase_name[j],
-					    item[i][j].min, (int)avg,
-					    item[i][j].max,
-					    (long long)item[i][j].sum,
-					    item[i][j].count);
-			}
-		}
-	}
-}
-
-/**************************************
- * Attributes show functions section  *
- **************************************/
-
-static ssize_t ssi_sys_stats_host_db_clear(struct kobject *kobj,
-					   struct kobj_attribute *attr,
-					   const char *buf, size_t count)
-{
-	init_db(stat_host_db);
-	return count;
-}
-
-static ssize_t ssi_sys_stats_cc_db_clear(struct kobject *kobj,
-					 struct kobj_attribute *attr,
-					 const char *buf, size_t count)
-{
-	init_db(stat_cc_db);
-	return count;
-}
-
-static ssize_t ssi_sys_stat_host_db_show(struct kobject *kobj,
-					 struct kobj_attribute *attr, char *buf)
-{
-	int i, j;
-	char line[512];
-	u32 min_cyc, max_cyc;
-	u64 avg;
-	ssize_t buf_len, tmp_len = 0;
-
-	buf_len = scnprintf(buf, PAGE_SIZE,
-			    "phase\t\t\t\t\t\t\tmin[cy]\tavg[cy]\tmax[cy]\t#samples\n");
-	if (buf_len < 0)/* scnprintf shouldn't return negative value according to its implementation*/
-		return buf_len;
-	for (i = STAT_OP_TYPE_ENCODE; i < MAX_STAT_OP_TYPES; i++) {
-		for (j = 0; j < MAX_STAT_PHASES - 1; j++) {
-			if (stat_host_db[i][j].count > 0) {
-				avg = (u64)stat_host_db[i][j].sum;
-				do_div(avg, stat_host_db[i][j].count);
-				min_cyc = stat_host_db[i][j].min;
-				max_cyc = stat_host_db[i][j].max;
-			} else {
-				avg = min_cyc = max_cyc = 0;
-			}
-			tmp_len = scnprintf(line, 512,
-					    "%s::%s\t\t\t\t\t%6u\t%6u\t%6u\t%7u\n",
-					    stat_name_db[i].op_type_name,
-					    stat_name_db[i].stat_phase_name[j],
-					    min_cyc, (unsigned int)avg, max_cyc,
-					    stat_host_db[i][j].count);
-			if (tmp_len < 0)/* scnprintf shouldn't return negative value according to its implementation*/
-				return buf_len;
-			if (buf_len + tmp_len >= PAGE_SIZE)
-				return buf_len;
-			buf_len += tmp_len;
-			strncat(buf, line, 512);
-		}
-	}
-	return buf_len;
-}
-
-static ssize_t ssi_sys_stat_cc_db_show(struct kobject *kobj,
-				       struct kobj_attribute *attr, char *buf)
-{
-	int i;
-	char line[256];
-	u32 min_cyc, max_cyc;
-	u64 avg;
-	ssize_t buf_len, tmp_len = 0;
-
-	buf_len = scnprintf(buf, PAGE_SIZE,
-			    "phase\tmin[cy]\tavg[cy]\tmax[cy]\t#samples\n");
-	if (buf_len < 0)/* scnprintf shouldn't return negative value according to its implementation*/
-		return buf_len;
-	for (i = STAT_OP_TYPE_ENCODE; i < MAX_STAT_OP_TYPES; i++) {
-		if (stat_cc_db[i][STAT_PHASE_6].count > 0) {
-			avg = (u64)stat_cc_db[i][STAT_PHASE_6].sum;
-			do_div(avg, stat_cc_db[i][STAT_PHASE_6].count);
-			min_cyc = stat_cc_db[i][STAT_PHASE_6].min;
-			max_cyc = stat_cc_db[i][STAT_PHASE_6].max;
-		} else {
-			avg = min_cyc = max_cyc = 0;
-		}
-		tmp_len = scnprintf(line, 256, "%s\t%6u\t%6u\t%6u\t%7u\n",
-				    stat_name_db[i].op_type_name, min_cyc,
-				    (unsigned int)avg, max_cyc,
-				    stat_cc_db[i][STAT_PHASE_6].count);
-
-		if (tmp_len < 0)/* scnprintf shouldn't return negative value according to its implementation*/
-			return buf_len;
-
-		if (buf_len + tmp_len >= PAGE_SIZE)
-			return buf_len;
-		buf_len += tmp_len;
-		strncat(buf, line, 256);
-	}
-	return buf_len;
-}
-
-void update_host_stat(unsigned int op_type, unsigned int phase, cycles_t result)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&stat_lock, flags);
-	update_db(&stat_host_db[op_type][phase], (unsigned int)result);
-	spin_unlock_irqrestore(&stat_lock, flags);
-}
-
-void update_cc_stat(
-	unsigned int op_type,
-	unsigned int phase,
-	unsigned int elapsed_cycles)
-{
-	update_db(&stat_cc_db[op_type][phase], elapsed_cycles);
-}
-
-void display_all_stat_db(void)
-{
-	SSI_LOG_ERR("\n=======    CYCLE COUNT STATS    =======\n");
-	display_db(stat_host_db);
-	SSI_LOG_ERR("\n======= CC HW CYCLE COUNT STATS =======\n");
-	display_db(stat_cc_db);
-}
-#endif /*CC_CYCLE_COUNT*/
-
 static ssize_t ssi_sys_regdump_show(struct kobject *kobj,
 				    struct kobj_attribute *attr, char *buf)
 {
 	struct ssi_drvdata *drvdata = sys_get_drvdata();
 	u32 register_value;
-	void __iomem *cc_base = drvdata->cc_base;
 	int offset = 0;
 
-	register_value = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_SIGNATURE));
+	register_value = cc_ioread(drvdata, CC_REG(HOST_SIGNATURE));
 	offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "HOST_SIGNATURE       ", DX_HOST_SIGNATURE_REG_OFFSET, register_value);
-	register_value = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_IRR));
+	register_value = cc_ioread(drvdata, CC_REG(HOST_IRR));
 	offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "HOST_IRR             ", DX_HOST_IRR_REG_OFFSET, register_value);
-	register_value = CC_HAL_READ_REGISTER(CC_REG_OFFSET(HOST_RGF, HOST_POWER_DOWN_EN));
+	register_value = cc_ioread(drvdata, CC_REG(HOST_POWER_DOWN_EN));
 	offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "HOST_POWER_DOWN_EN   ", DX_HOST_POWER_DOWN_EN_REG_OFFSET, register_value);
-	register_value =  CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, AXIM_MON_ERR));
+	register_value =  cc_ioread(drvdata, CC_REG(AXIM_MON_ERR));
 	offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "AXIM_MON_ERR         ", DX_AXIM_MON_ERR_REG_OFFSET, register_value);
-	register_value = CC_HAL_READ_REGISTER(CC_REG_OFFSET(CRY_KERNEL, DSCRPTR_QUEUE_CONTENT));
+	register_value = cc_ioread(drvdata, CC_REG(DSCRPTR_QUEUE_CONTENT));
 	offset += scnprintf(buf + offset, PAGE_SIZE - offset, "%s \t(0x%lX)\t 0x%08X\n", "DSCRPTR_QUEUE_CONTENT", DX_DSCRPTR_QUEUE_CONTENT_REG_OFFSET, register_value);
 	return offset;
 }
@@ -304,12 +49,6 @@ static ssize_t ssi_sys_help_show(struct kobject *kobj,
 {
 	char *help_str[] = {
 				"cat reg_dump              ", "Print several of CC register values",
-		#if defined CC_CYCLE_COUNT
-				"cat stats_host            ", "Print host statistics",
-				"echo <number> > stats_host", "Clear host statistics database",
-				"cat stats_cc              ", "Print CC statistics",
-				"echo <number> > stats_cc  ", "Clear CC statistics database",
-		#endif
 				};
 	int i = 0, offset = 0;
 
@@ -376,7 +115,7 @@ static int sys_init_dir(struct sys_dir *sys_dir, struct ssi_drvdata *drvdata,
 		return -ENOMEM;
 	/* allocate memory for directory's attributes list */
 	sys_dir->sys_dir_attr_list =
-		kzalloc(sizeof(struct attribute *) * (num_of_attrs + 1),
+		kcalloc(num_of_attrs + 1, sizeof(struct attribute *),
 			GFP_KERNEL);
 
 	if (!(sys_dir->sys_dir_attr_list)) {
@@ -413,14 +152,9 @@ static void sys_free_dir(struct sys_dir *sys_dir)
 int ssi_sysfs_init(struct kobject *sys_dev_obj, struct ssi_drvdata *drvdata)
 {
 	int retval;
+	struct device *dev = drvdata_to_dev(drvdata);
 
-#if defined CC_CYCLE_COUNT
-	/* Init. statistics */
-	init_db(stat_host_db);
-	init_db(stat_cc_db);
-#endif
-
-	SSI_LOG_ERR("setup sysfs under %s\n", sys_dev_obj->name);
+	dev_info(dev, "setup sysfs under %s\n", sys_dev_obj->name);
 
 	/* Initialize top directory */
 	retval = sys_init_dir(&sys_top_dir, drvdata, sys_dev_obj, "cc_info",
diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 7a655ed071a3..4218fc0e17f1 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -785,8 +785,8 @@ config COMEDI_ADV_PCI_DIO
 	---help---
 	  Enable support for Advantech PCI DIO cards
 	  PCI-1730, PCI-1733, PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U,
-	  PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756 and
-	  PCI-1762
+	  PCI-1750, PCI-1751, PCI-1752, PCI-1753/E, PCI-1754, PCI-1756,
+	  PCI-1761 and PCI-1762
 
 	  To compile this driver as a module, choose M here: the module will be
 	  called adv_pci_dio.
diff --git a/drivers/staging/comedi/Makefile b/drivers/staging/comedi/Makefile
index 7f9dfb3923ab..6af5da3b4315 100644
--- a/drivers/staging/comedi/Makefile
+++ b/drivers/staging/comedi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_COMEDI_DEBUG)		:= -DDEBUG
 
 comedi-y				:= comedi_fops.o range.o drivers.o \
diff --git a/drivers/staging/comedi/comedi_internal.h b/drivers/staging/comedi/comedi_internal.h
index 6246f4a78ca6..515f293a5d26 100644
--- a/drivers/staging/comedi/comedi_internal.h
+++ b/drivers/staging/comedi/comedi_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _COMEDI_INTERNAL_H
 #define _COMEDI_INTERNAL_H
 
diff --git a/drivers/staging/comedi/drivers/Makefile b/drivers/staging/comedi/drivers/Makefile
index 0c8cfa738727..736e7e55219d 100644
--- a/drivers/staging/comedi/drivers/Makefile
+++ b/drivers/staging/comedi/drivers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for individual comedi drivers
 #
 ccflags-$(CONFIG_COMEDI_DEBUG)		:= -DDEBUG
diff --git a/drivers/staging/comedi/drivers/addi_tcw.h b/drivers/staging/comedi/drivers/addi_tcw.h
index db6d5a4e8889..2b44d3a04484 100644
--- a/drivers/staging/comedi/drivers/addi_tcw.h
+++ b/drivers/staging/comedi/drivers/addi_tcw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADDI_TCW_H
 #define _ADDI_TCW_H
 
diff --git a/drivers/staging/comedi/drivers/addi_watchdog.h b/drivers/staging/comedi/drivers/addi_watchdog.h
index b049cfba9813..7523084a0742 100644
--- a/drivers/staging/comedi/drivers/addi_watchdog.h
+++ b/drivers/staging/comedi/drivers/addi_watchdog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADDI_WATCHDOG_H
 #define _ADDI_WATCHDOG_H
 
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 620cec13d74c..a8186687ca2c 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -12,9 +12,9 @@
  * Devices: [Advantech] PCI-1730 (adv_pci_dio), PCI-1733,
  *   PCI-1734, PCI-1735U, PCI-1736UP, PCI-1739U, PCI-1750,
  *   PCI-1751, PCI-1752, PCI-1753, PCI-1753+PCI-1753E,
- *   PCI-1754, PCI-1756, PCI-1762
+ *   PCI-1754, PCI-1756, PCI-1761, PCI-1762
  * Author: Michal Dobes <dobes@tesnet.cz>
- * Updated: Mon, 09 Jan 2012 12:40:46 +0000
+ * Updated: Fri, 25 Aug 2017 07:23:06 +0300
  * Status: untested
  *
  * Configuration Options: not applicable, uses PCI auto config
@@ -50,6 +50,11 @@
 /* PCI-1752, PCI-1756 special registers */
 #define PCI1752_CFC_REG		0x12	/* R/W: channel freeze function */
 
+/* PCI-1761 interrupt control registers */
+#define PCI1761_INT_EN_REG	0x03	/* R/W: enable/disable interrupts */
+#define PCI1761_INT_RF_REG	0x04	/* R/W: falling/rising edge */
+#define PCI1761_INT_CLR_REG	0x05	/* R/W: clear interrupts */
+
 /* PCI-1762 interrupt control registers */
 #define PCI1762_INT_REG		0x06	/* R/W: status/control */
 
@@ -72,6 +77,7 @@ enum pci_dio_boardid {
 	TYPE_PCI1753E,
 	TYPE_PCI1754,
 	TYPE_PCI1756,
+	TYPE_PCI1761,
 	TYPE_PCI1762
 };
 
@@ -181,6 +187,13 @@ static const struct dio_boardtype boardtypes[] = {
 		.id_reg		= 0x10,
 		.is_16bit	= 1,
 	},
+	[TYPE_PCI1761] = {
+		.name		= "pci1761",
+		.nsubdevs	= 3,
+		.sdi[1]		= { 8, 0x01 },		/* ISO DI 0-7 */
+		.sdo[1]		= { 8, 0x00 },		/* RELAY DO 0-7 */
+		.id_reg		= 0x02,
+	},
 	[TYPE_PCI1762] = {
 		.name		= "pci1762",
 		.nsubdevs	= 3,
@@ -309,6 +322,14 @@ static int pci_dio_reset(struct comedi_device *dev, unsigned long cardtype)
 			outw(0x08, dev->iobase + PCI1754_INT_REG(3));
 		}
 		break;
+	case TYPE_PCI1761:
+		/* disable interrupts */
+		outb(0, dev->iobase + PCI1761_INT_EN_REG);
+		/* clear interrupts */
+		outb(0xff, dev->iobase + PCI1761_INT_CLR_REG);
+		/* set rising edge trigger */
+		outb(0, dev->iobase + PCI1761_INT_RF_REG);
+		break;
 	case TYPE_PCI1762:
 		outw(0x0101, dev->iobase + PCI1762_INT_REG);
 		break;
@@ -496,6 +517,7 @@ static const struct pci_device_id adv_pci_dio_pci_table[] = {
 	{ PCI_VDEVICE(ADVANTECH, 0x1753), TYPE_PCI1753 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1754), TYPE_PCI1754 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1756), TYPE_PCI1756 },
+	{ PCI_VDEVICE(ADVANTECH, 0x1761), TYPE_PCI1761 },
 	{ PCI_VDEVICE(ADVANTECH, 0x1762), TYPE_PCI1762 },
 	{ 0 }
 };
diff --git a/drivers/staging/comedi/drivers/amcc_s5933.h b/drivers/staging/comedi/drivers/amcc_s5933.h
index f03e4c8c2021..f738b91b2052 100644
--- a/drivers/staging/comedi/drivers/amcc_s5933.h
+++ b/drivers/staging/comedi/drivers/amcc_s5933.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Stuff for AMCC S5933 PCI Controller
  *
diff --git a/drivers/staging/comedi/drivers/comedi_test.c b/drivers/staging/comedi/drivers/comedi_test.c
index ccfd642998be..c7e8194984e5 100644
--- a/drivers/staging/comedi/drivers/comedi_test.c
+++ b/drivers/staging/comedi/drivers/comedi_test.c
@@ -93,6 +93,7 @@ struct waveform_private {
 	unsigned int ai_scan_period;	/* AI scan period in usec */
 	unsigned int ai_convert_period;	/* AI conversion period in usec */
 	struct timer_list ao_timer;	/* timer for AO commands */
+	struct comedi_device *dev;	/* parent comedi device */
 	u64 ao_last_scan_time;		/* time of previous AO scan in usec */
 	unsigned int ao_scan_period;	/* AO scan period in usec */
 	unsigned short ao_loopbacks[N_CHANS];
@@ -201,10 +202,10 @@ static unsigned short fake_waveform(struct comedi_device *dev,
  * It should run in the background; therefore it is scheduled by
  * a timer mechanism.
  */
-static void waveform_ai_timer(unsigned long arg)
+static void waveform_ai_timer(struct timer_list *t)
 {
-	struct comedi_device *dev = (struct comedi_device *)arg;
-	struct waveform_private *devpriv = dev->private;
+	struct waveform_private *devpriv = from_timer(devpriv, t, ai_timer);
+	struct comedi_device *dev = devpriv->dev;
 	struct comedi_subdevice *s = dev->read_subdev;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
@@ -438,10 +439,10 @@ static int waveform_ai_insn_read(struct comedi_device *dev,
  * This is the background routine to handle AO commands, scheduled by
  * a timer mechanism.
  */
-static void waveform_ao_timer(unsigned long arg)
+static void waveform_ao_timer(struct timer_list *t)
 {
-	struct comedi_device *dev = (struct comedi_device *)arg;
-	struct waveform_private *devpriv = dev->private;
+	struct waveform_private *devpriv = from_timer(devpriv, t, ao_timer);
+	struct comedi_device *dev = devpriv->dev;
 	struct comedi_subdevice *s = dev->write_subdev;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
@@ -686,8 +687,9 @@ static int waveform_common_attach(struct comedi_device *dev,
 	for (i = 0; i < s->n_chan; i++)
 		devpriv->ao_loopbacks[i] = s->maxdata / 2;
 
-	setup_timer(&devpriv->ai_timer, waveform_ai_timer, (unsigned long)dev);
-	setup_timer(&devpriv->ao_timer, waveform_ao_timer, (unsigned long)dev);
+	devpriv->dev = dev;
+	timer_setup(&devpriv->ai_timer, waveform_ai_timer, 0);
+	timer_setup(&devpriv->ao_timer, waveform_ao_timer, 0);
 
 	dev_info(dev->class_dev,
 		 "%s: %u microvolt, %u microsecond waveform attached\n",
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 5d157951f63f..ddd4aeab6365 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -440,6 +440,7 @@ static inline int timer_period(void)
 
 struct das16_private_struct {
 	struct comedi_isadma	*dma;
+	struct comedi_device	*dev;
 	unsigned int		clockbase;
 	unsigned int		ctrl_reg;
 	unsigned int		divisor1;
@@ -525,10 +526,10 @@ static void das16_interrupt(struct comedi_device *dev)
 	comedi_handle_events(dev, s);
 }
 
-static void das16_timer_interrupt(unsigned long arg)
+static void das16_timer_interrupt(struct timer_list *t)
 {
-	struct comedi_device *dev = (struct comedi_device *)arg;
-	struct das16_private_struct *devpriv = dev->private;
+	struct das16_private_struct *devpriv = from_timer(devpriv, t, timer);
+	struct comedi_device *dev = devpriv->dev;
 	unsigned long flags;
 
 	das16_interrupt(dev);
@@ -934,6 +935,8 @@ static void das16_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
 {
 	struct das16_private_struct *devpriv = dev->private;
 
+	timer_setup(&devpriv->timer, das16_timer_interrupt, 0);
+
 	/* only DMA channels 3 and 1 are valid */
 	if (!(dma_chan == 1 || dma_chan == 3))
 		return;
@@ -941,10 +944,6 @@ static void das16_alloc_dma(struct comedi_device *dev, unsigned int dma_chan)
 	/* DMA uses two buffers */
 	devpriv->dma = comedi_isadma_alloc(dev, 2, dma_chan, dma_chan,
 					   DAS16_DMA_SIZE, COMEDI_ISADMA_READ);
-	if (devpriv->dma) {
-		setup_timer(&devpriv->timer, das16_timer_interrupt,
-			    (unsigned long)dev);
-	}
 }
 
 static void das16_free_dma(struct comedi_device *dev)
@@ -952,8 +951,7 @@ static void das16_free_dma(struct comedi_device *dev)
 	struct das16_private_struct *devpriv = dev->private;
 
 	if (devpriv) {
-		if (devpriv->timer.data)
-			del_timer_sync(&devpriv->timer);
+		del_timer_sync(&devpriv->timer);
 		comedi_isadma_free(devpriv->dma);
 	}
 }
@@ -1046,6 +1044,7 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
 	if (!devpriv)
 		return -ENOMEM;
+	devpriv->dev = dev;
 
 	if (board->size < 0x400) {
 		ret = comedi_request_region(dev, it->options[0], board->size);
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index d5295bbdd28c..217a4b884689 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -1062,6 +1062,8 @@ static void dt282x_alloc_dma(struct comedi_device *dev,
 					   PAGE_SIZE, 0);
 	if (!devpriv->dma)
 		free_irq(irq_num, dev);
+	else
+		dev->irq = irq_num;
 }
 
 static void dt282x_free_dma(struct comedi_device *dev)
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index f1c2a20a7d4d..cbff3b41bb45 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -96,6 +96,7 @@ struct jr3_pci_poll_delay {
 
 struct jr3_pci_dev_private {
 	struct timer_list timer;
+	struct comedi_device *dev;
 };
 
 union jr3_pci_single_range {
@@ -585,10 +586,10 @@ jr3_pci_poll_subdevice(struct comedi_subdevice *s)
 	return result;
 }
 
-static void jr3_pci_poll_dev(unsigned long data)
+static void jr3_pci_poll_dev(struct timer_list *t)
 {
-	struct comedi_device *dev = (struct comedi_device *)data;
-	struct jr3_pci_dev_private *devpriv = dev->private;
+	struct jr3_pci_dev_private *devpriv = from_timer(devpriv, t, timer);
+	struct comedi_device *dev = devpriv->dev;
 	struct jr3_pci_subdev_private *spriv;
 	struct comedi_subdevice *s;
 	unsigned long flags;
@@ -770,7 +771,8 @@ static int jr3_pci_auto_attach(struct comedi_device *dev,
 		spriv->next_time_min = jiffies + msecs_to_jiffies(500);
 	}
 
-	setup_timer(&devpriv->timer, jr3_pci_poll_dev, (unsigned long)dev);
+	devpriv->dev = dev;
+	timer_setup(&devpriv->timer, jr3_pci_poll_dev, 0);
 	devpriv->timer.expires = jiffies + msecs_to_jiffies(1000);
 	add_timer(&devpriv->timer);
 
diff --git a/drivers/staging/comedi/drivers/jr3_pci.h b/drivers/staging/comedi/drivers/jr3_pci.h
index 28ff0c2aa3b8..acd4e5456ceb 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.h
+++ b/drivers/staging/comedi/drivers/jr3_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Helper types to take care of the fact that the DSP card memory
  * is 16 bits, but aligned on a 32 bit PCI boundary
diff --git a/drivers/staging/comedi/drivers/ni_labpc_isadma.h b/drivers/staging/comedi/drivers/ni_labpc_isadma.h
index e93f79050e60..f06f9353cb6c 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_isadma.h
+++ b/drivers/staging/comedi/drivers/ni_labpc_isadma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ni_labpc ISA DMA support.
  */
diff --git a/drivers/staging/comedi/drivers/ni_labpc_regs.h b/drivers/staging/comedi/drivers/ni_labpc_regs.h
index 6003e9d5fe37..ace40065a25b 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_regs.h
+++ b/drivers/staging/comedi/drivers/ni_labpc_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ni_labpc register definitions.
  */
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index c80527db9c19..e226275972c0 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -408,9 +408,8 @@ static int s526_gpct_winsn(struct comedi_device *dev,
 		 */
 		if ((data[1] <= data[0]) || !data[0])
 			return -EINVAL;
-
-		/* Fall thru to write the PULSE_WIDTH */
-
+		/* to write the PULSE_WIDTH */
+		/* fall through */
 	case INSN_CONFIG_GPCT_QUADRATURE_ENCODER:
 	case INSN_CONFIG_GPCT_SINGLE_PULSE_GENERATOR:
 		s526_gpct_write(dev, chan, data[0]);
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index 0d33e520f635..cc18e25103ca 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -106,16 +106,8 @@ static long serial2002_tty_ioctl(struct file *f, unsigned int op,
 
 static int serial2002_tty_write(struct file *f, unsigned char *buf, int count)
 {
-	const char __user *p = (__force const char __user *)buf;
-	int result;
-	loff_t offset = 0;
-	mm_segment_t oldfs;
-
-	oldfs = get_fs();
-	set_fs(KERNEL_DS);
-	result = __vfs_write(f, p, count, &offset);
-	set_fs(oldfs);
-	return result;
+	loff_t pos = 0;
+	return kernel_write(f, buf, count, &pos);
 }
 
 static void serial2002_tty_read_poll_wait(struct file *f, int timeout)
@@ -148,19 +140,14 @@ static int serial2002_tty_read(struct file *f, int timeout)
 {
 	unsigned char ch;
 	int result;
+	loff_t pos = 0;
 
 	result = -1;
 	if (!IS_ERR(f)) {
-		mm_segment_t oldfs;
-		char __user *p = (__force char __user *)&ch;
-		loff_t offset = 0;
-
-		oldfs = get_fs();
-		set_fs(KERNEL_DS);
 		if (f->f_op->poll) {
 			serial2002_tty_read_poll_wait(f, timeout);
 
-			if (__vfs_read(f, p, 1, &offset) == 1)
+			if (kernel_read(f, &ch, 1, &pos) == 1)
 				result = ch;
 		} else {
 			/* Device does not support poll, busy wait */
@@ -171,14 +158,13 @@ static int serial2002_tty_read(struct file *f, int timeout)
 				if (retries >= timeout)
 					break;
 
-				if (__vfs_read(f, p, 1, &offset) == 1) {
+				if (kernel_read(f, &ch, 1, &pos) == 1) {
 					result = ch;
 					break;
 				}
 				usleep_range(100, 1000);
 			}
 		}
-		set_fs(oldfs);
 	}
 	return result;
 }
diff --git a/drivers/staging/comedi/drivers/z8536.h b/drivers/staging/comedi/drivers/z8536.h
index 47eadbf4dcc0..3ef5f9e79b89 100644
--- a/drivers/staging/comedi/drivers/z8536.h
+++ b/drivers/staging/comedi/drivers/z8536.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Z8536 CIO Internal registers
  */
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index c1b6079384e9..d9bf5da1b8e5 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -291,7 +291,7 @@ static void dgnc_free_irq(struct dgnc_board *brd)
   * waiter needs to be woken up, and (b) whether the poller needs to
   * be rescheduled.
   */
-static void dgnc_poll_handler(ulong dummy)
+static void dgnc_poll_handler(struct timer_list *unused)
 {
 	struct dgnc_board *brd;
 	unsigned long flags;
@@ -323,7 +323,7 @@ static void dgnc_poll_handler(ulong dummy)
 	if ((ulong)new_time >= 2 * dgnc_poll_tick)
 		dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
 
-	setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
+	timer_setup(&dgnc_poll_timer, dgnc_poll_handler, 0);
 	dgnc_poll_timer.expires = dgnc_poll_time;
 	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
 
@@ -392,8 +392,6 @@ static int dgnc_start(void)
 	unsigned long flags;
 	struct device *dev;
 
-	init_timer(&dgnc_poll_timer);
-
 	rc = register_chrdev(0, "dgnc", &dgnc_board_fops);
 	if (rc < 0) {
 		pr_err(DRVSTR ": Can't register dgnc driver device (%d)\n", rc);
@@ -419,7 +417,7 @@ static int dgnc_start(void)
 
 	/* Start the poller */
 	spin_lock_irqsave(&dgnc_poll_lock, flags);
-	setup_timer(&dgnc_poll_timer, dgnc_poll_handler, 0);
+	timer_setup(&dgnc_poll_timer, dgnc_poll_handler, 0);
 	dgnc_poll_time = jiffies + dgnc_jiffies_from_ms(dgnc_poll_tick);
 	dgnc_poll_timer.expires = dgnc_poll_time;
 	spin_unlock_irqrestore(&dgnc_poll_lock, flags);
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
index 764d6fe0d030..efdb11a5e27f 100644
--- a/drivers/staging/dgnc/dgnc_driver.h
+++ b/drivers/staging/dgnc/dgnc_driver.h
@@ -104,7 +104,6 @@ struct board_ops {
  * struct dgnc_board - Per board information.
  * @boardnum: Board number (0 - 32).
  *
- * @type: Type of board.
  * @name: Product name.
  * @pdev: Pointer to the pci_dev structure.
  * @bd_flags: Board flags.
@@ -140,13 +139,9 @@ struct board_ops {
  * @dpastatus: Board status as defined by DPA.
  * @bd_dividend: Board/UART's specific dividend.
  * @bd_ops: Pointer to board operations structure.
- * @proc_entry_pointer: Proc/<board> entry
- * @dgnc_board_table: Proc/<board> entry
  */
 struct dgnc_board {
 	int		boardnum;
-
-	int		type;
 	char		*name;
 	struct pci_dev	*pdev;
 	unsigned long	bd_flags;
@@ -200,10 +195,6 @@ struct dgnc_board {
 	uint		bd_dividend;
 
 	struct board_ops *bd_ops;
-
-	struct proc_dir_entry *proc_entry_pointer;
-	struct dgnc_proc_entry *dgnc_board_table;
-
 };
 
 /* Unit flag definitions for un_flags. */
@@ -233,7 +224,6 @@ struct device;
  */
 struct un_t {
 	struct	channel_t *un_ch;
-	ulong	un_time;
 	uint	un_type;
 	uint	un_open_count;
 	struct tty_struct *un_tty;
@@ -321,8 +311,6 @@ struct un_t {
  * @ch_err_overrun: Count of overruns on channel.
  * @ch_xon_sends: Count of xons transmitted.
  * @ch_xoff_sends: Count of xoffs transmitted.
- * @proc_entry_pointer: Proc/<board>/<channel> entry.
- * @dgnc_channel_table: Proc/<board>/<channel> entry.
  */
 struct channel_t {
 	struct dgnc_board *ch_bd;
@@ -391,10 +379,6 @@ struct channel_t {
 
 	ulong		ch_xon_sends;
 	ulong		ch_xoff_sends;
-
-	struct proc_dir_entry *proc_entry_pointer;
-	struct dgnc_proc_entry *dgnc_channel_table;
-
 };
 
 extern uint		dgnc_major;		/* Our driver/mgmt major */
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 1943e66fec57..0ae229c3aaaa 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -1182,7 +1182,6 @@ static int neo_drain(struct tty_struct *tty, uint seconds)
 	unsigned long flags;
 	struct channel_t *ch;
 	struct un_t *un;
-	int rc = 0;
 
 	if (!tty)
 		return -ENXIO;
@@ -1199,12 +1198,10 @@ static int neo_drain(struct tty_struct *tty, uint seconds)
 	un->un_flags |= UN_EMPTY;
 	spin_unlock_irqrestore(&ch->ch_lock, flags);
 
-	rc = wait_event_interruptible_timeout(un->un_flags_wait,
-					      ((un->un_flags & UN_EMPTY) == 0),
-					      msecs_to_jiffies(seconds * 1000));
-
-	/* If ret is non-zero, user ctrl-c'ed us */
-	return rc;
+	/* If returned value is non-zero, user ctrl-c'ed us */
+	return wait_event_interruptible_timeout(un->un_flags_wait,
+					((un->un_flags & UN_EMPTY) == 0),
+					msecs_to_jiffies(seconds * 1000));
 }
 
 /*
diff --git a/drivers/staging/dgnc/dgnc_utils.c b/drivers/staging/dgnc/dgnc_utils.c
index e07ff8d2f972..620f5741a1ed 100644
--- a/drivers/staging/dgnc/dgnc_utils.c
+++ b/drivers/staging/dgnc/dgnc_utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/tty.h>
 #include <linux/sched/signal.h>
 #include "dgnc_utils.h"
diff --git a/drivers/staging/dgnc/dgnc_utils.h b/drivers/staging/dgnc/dgnc_utils.h
index d1f07a5735c6..b30527f0889d 100644
--- a/drivers/staging/dgnc/dgnc_utils.h
+++ b/drivers/staging/dgnc/dgnc_utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DGNC_UTILS_H
 #define _DGNC_UTILS_H
 
diff --git a/drivers/staging/fbtft/Makefile b/drivers/staging/fbtft/Makefile
index 05ae9fbf906e..6bc03311c9c7 100644
--- a/drivers/staging/fbtft/Makefile
+++ b/drivers/staging/fbtft/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Core module
 obj-$(CONFIG_FB_TFT)             += fbtft.o
 fbtft-y                          += fbtft-core.o fbtft-sysfs.o fbtft-bus.o fbtft-io.o
diff --git a/drivers/staging/fbtft/fb_ra8875.c b/drivers/staging/fbtft/fb_ra8875.c
index a899614ce829..6d1cad85957b 100644
--- a/drivers/staging/fbtft/fb_ra8875.c
+++ b/drivers/staging/fbtft/fb_ra8875.c
@@ -253,7 +253,7 @@ static void write_reg8_bus8(struct fbtft_par *par, int len, ...)
 static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u16 *vmem16;
-	__be16 *txbuf16 = par->txbuf.buf;
+	__be16 *txbuf16;
 	size_t remain;
 	size_t to_copy;
 	size_t tx_array_size;
@@ -267,10 +267,10 @@ static int write_vmem16_bus8(struct fbtft_par *par, size_t offset, size_t len)
 	remain = len / 2;
 	vmem16 = (u16 *)(par->info->screen_buffer + offset);
 	tx_array_size = par->txbuf.len / 2;
-		txbuf16 = par->txbuf.buf + 1;
-		tx_array_size -= 2;
-		*(u8 *)(par->txbuf.buf) = 0x00;
-		startbyte_size = 1;
+	txbuf16 = par->txbuf.buf + 1;
+	tx_array_size -= 2;
+	*(u8 *)(par->txbuf.buf) = 0x00;
+	startbyte_size = 1;
 
 	while (remain) {
 		to_copy = min(tx_array_size, remain);
diff --git a/drivers/staging/fbtft/fb_ssd1331.c b/drivers/staging/fbtft/fb_ssd1331.c
index 9aa9864fcf30..e4a759b54ba0 100644
--- a/drivers/staging/fbtft/fb_ssd1331.c
+++ b/drivers/staging/fbtft/fb_ssd1331.c
@@ -26,7 +26,13 @@ static int init_display(struct fbtft_par *par)
 	par->fbtftops.reset(par);
 
 	write_reg(par, 0xae); /* Display Off */
-	write_reg(par, 0xa0, 0x70 | (par->bgr << 2)); /* Set Colour Depth */
+
+	/* Set Column Address Mapping, COM Scan Direction and Colour Depth */
+	if (par->info->var.rotate == 180)
+		write_reg(par, 0xa0, 0x60 | (par->bgr << 2));
+	else
+		write_reg(par, 0xa0, 0x72 | (par->bgr << 2));
+
 	write_reg(par, 0x72); /* RGB colour */
 	write_reg(par, 0xa1, 0x00); /* Set Display Start Line */
 	write_reg(par, 0xa2, 0x00); /* Set Display Offset */
diff --git a/drivers/staging/fbtft/fb_uc1611.c b/drivers/staging/fbtft/fb_uc1611.c
index 48e3b3fd9fed..8eb5e7f10fb5 100644
--- a/drivers/staging/fbtft/fb_uc1611.c
+++ b/drivers/staging/fbtft/fb_uc1611.c
@@ -225,7 +225,7 @@ static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 	u8 *buf8 = par->txbuf.buf;
 	u16 *buf16 = par->txbuf.buf;
 	int line_length = par->info->fix.line_length;
-	int y_start = (offset / line_length);
+	int y_start = offset / line_length;
 	int y_end = (offset + len - 1) / line_length;
 	int x, y, i;
 	int ret = 0;
diff --git a/drivers/staging/fbtft/fb_uc1701.c b/drivers/staging/fbtft/fb_uc1701.c
index b78045fe5393..78899a172c7e 100644
--- a/drivers/staging/fbtft/fb_uc1701.c
+++ b/drivers/staging/fbtft/fb_uc1701.c
@@ -127,7 +127,7 @@ static void set_addr_win(struct fbtft_par *par, int xs, int ys, int xe, int ye)
 static int write_vmem(struct fbtft_par *par, size_t offset, size_t len)
 {
 	u16 *vmem16 = (u16 *)par->info->screen_buffer;
-	u8 *buf = par->txbuf.buf;
+	u8 *buf;
 	int x, y, i;
 	int ret = 0;
 
diff --git a/drivers/staging/fbtft/fbtft-bus.c b/drivers/staging/fbtft/fbtft-bus.c
index a80b5d115ff8..a263bce260c9 100644
--- a/drivers/staging/fbtft/fbtft-bus.c
+++ b/drivers/staging/fbtft/fbtft-bus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/gpio.h>
@@ -10,33 +11,33 @@
  *
  *****************************************************************************/
 
-#define define_fbtft_write_reg(func, type, modifier)                          \
+#define define_fbtft_write_reg(func, buffer_type, data_type, modifier)        \
 void func(struct fbtft_par *par, int len, ...)                                \
 {                                                                             \
 	va_list args;                                                         \
 	int i, ret;                                                           \
 	int offset = 0;                                                       \
-	type *buf = (type *)par->buf;                                         \
+	buffer_type *buf = (buffer_type *)par->buf;                           \
 									      \
 	if (unlikely(par->debug & DEBUG_WRITE_REGISTER)) {                    \
 		va_start(args, len);                                          \
 		for (i = 0; i < len; i++) {                                   \
-			buf[i] = (type)va_arg(args, unsigned int);            \
+			buf[i] = modifier((data_type)va_arg(args, unsigned int)); \
 		}                                                             \
 		va_end(args);                                                 \
-		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, type, buf, len, "%s: ", __func__);   \
+		fbtft_par_dbg_hex(DEBUG_WRITE_REGISTER, par, par->info->device, buffer_type, buf, len, "%s: ", __func__); \
 	}                                                                     \
 									      \
 	va_start(args, len);                                                  \
 									      \
 	if (par->startbyte) {                                                 \
 		*(u8 *)par->buf = par->startbyte;                             \
-		buf = (type *)(par->buf + 1);                                 \
+		buf = (buffer_type *)(par->buf + 1);                          \
 		offset = 1;                                                   \
 	}                                                                     \
 									      \
-	*buf = modifier((type)va_arg(args, unsigned int));                    \
-	ret = fbtft_write_buf_dc(par, par->buf, sizeof(type) + offset, 0);    \
+	*buf = modifier((data_type)va_arg(args, unsigned int));               \
+	ret = fbtft_write_buf_dc(par, par->buf, sizeof(data_type) + offset, 0); \
 	if (ret < 0)							      \
 		goto out;						      \
 	len--;                                                                \
@@ -47,18 +48,18 @@ void func(struct fbtft_par *par, int len, ...)                                \
 	if (len) {                                                            \
 		i = len;                                                      \
 		while (i--)						      \
-			*buf++ = modifier((type)va_arg(args, unsigned int));  \
+			*buf++ = modifier((data_type)va_arg(args, unsigned int)); \
 		fbtft_write_buf_dc(par, par->buf,			      \
-				   len * (sizeof(type) + offset), 1);	      \
+				   len * (sizeof(data_type) + offset), 1);    \
 	}                                                                     \
 out:									      \
 	va_end(args);                                                         \
 }                                                                             \
 EXPORT_SYMBOL(func);
 
-define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, )
-define_fbtft_write_reg(fbtft_write_reg16_bus8, u16, cpu_to_be16)
-define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, )
+define_fbtft_write_reg(fbtft_write_reg8_bus8, u8, u8, )
+define_fbtft_write_reg(fbtft_write_reg16_bus8, __be16, u16, cpu_to_be16)
+define_fbtft_write_reg(fbtft_write_reg16_bus16, u16, u16, )
 
 void fbtft_write_reg8_bus9(struct fbtft_par *par, int len, ...)
 {
diff --git a/drivers/staging/fbtft/fbtft-io.c b/drivers/staging/fbtft/fbtft-io.c
index ffb9a3b4d454..f4a591919f62 100644
--- a/drivers/staging/fbtft/fbtft-io.c
+++ b/drivers/staging/fbtft/fbtft-io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/errno.h>
 #include <linux/gpio.h>
diff --git a/drivers/staging/fbtft/fbtft-sysfs.c b/drivers/staging/fbtft/fbtft-sysfs.c
index 5bfd67b526b5..712096659aa0 100644
--- a/drivers/staging/fbtft/fbtft-sysfs.c
+++ b/drivers/staging/fbtft/fbtft-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "fbtft.h"
 #include "internal.h"
 
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
index 26017fe9df93..0d8ed002adcb 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.c
@@ -104,9 +104,11 @@ static void free_rx_fd(struct dpaa2_eth_priv *priv,
 		/* We don't support any other format */
 		return;
 
-	/* For S/G frames, we first need to free all SG entries */
+	/* For S/G frames, we first need to free all SG entries
+	 * except the first one, which was taken care of already
+	 */
 	sgt = vaddr + dpaa2_fd_get_offset(fd);
-	for (i = 0; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
+	for (i = 1; i < DPAA2_ETH_MAX_SG_ENTRIES; i++) {
 		addr = dpaa2_sg_get_addr(&sgt[i]);
 		sg_vaddr = dpaa2_iova_to_virt(priv->iommu_domain, addr);
 		dma_unmap_single(dev, addr, DPAA2_ETH_RX_BUF_SIZE,
@@ -131,16 +133,15 @@ static struct sk_buff *build_linear_skb(struct dpaa2_eth_priv *priv,
 	u16 fd_offset = dpaa2_fd_get_offset(fd);
 	u32 fd_length = dpaa2_fd_get_len(fd);
 
-	skb = build_skb(fd_vaddr, DPAA2_ETH_RX_BUF_SIZE +
-			SKB_DATA_ALIGN(sizeof(struct skb_shared_info)));
+	ch->buf_count--;
+
+	skb = build_skb(fd_vaddr, DPAA2_ETH_SKB_SIZE);
 	if (unlikely(!skb))
 		return NULL;
 
 	skb_reserve(skb, fd_offset);
 	skb_put(skb, fd_length);
 
-	ch->buf_count--;
-
 	return skb;
 }
 
@@ -176,10 +177,21 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv,
 
 		if (i == 0) {
 			/* We build the skb around the first data buffer */
-			skb = build_skb(sg_vaddr, DPAA2_ETH_RX_BUF_SIZE +
-				SKB_DATA_ALIGN(sizeof(struct skb_shared_info)));
-			if (unlikely(!skb))
-				return NULL;
+			skb = build_skb(sg_vaddr, DPAA2_ETH_SKB_SIZE);
+			if (unlikely(!skb)) {
+				/* Free the first SG entry now, since we already
+				 * unmapped it and obtained the virtual address
+				 */
+				skb_free_frag(sg_vaddr);
+
+				/* We still need to subtract the buffers used
+				 * by this FD from our software counter
+				 */
+				while (!dpaa2_sg_is_final(&sgt[i]) &&
+				       i < DPAA2_ETH_MAX_SG_ENTRIES)
+					i++;
+				break;
+			}
 
 			sg_offset = dpaa2_sg_get_offset(sge);
 			skb_reserve(skb, sg_offset);
@@ -206,6 +218,8 @@ static struct sk_buff *build_frag_skb(struct dpaa2_eth_priv *priv,
 			break;
 	}
 
+	WARN_ONCE(i == DPAA2_ETH_MAX_SG_ENTRIES, "Final bit not set in SGT");
+
 	/* Count all data buffers + SG table buffer */
 	ch->buf_count -= i + 2;
 
@@ -557,10 +571,10 @@ static netdev_tx_t dpaa2_eth_tx(struct sk_buff *skb, struct net_device *net_dev)
 	percpu_stats = this_cpu_ptr(priv->percpu_stats);
 	percpu_extras = this_cpu_ptr(priv->percpu_extras);
 
-	if (unlikely(skb_headroom(skb) < DPAA2_ETH_NEEDED_HEADROOM(priv))) {
+	if (unlikely(skb_headroom(skb) < dpaa2_eth_needed_headroom(priv))) {
 		struct sk_buff *ns;
 
-		ns = skb_realloc_headroom(skb, DPAA2_ETH_NEEDED_HEADROOM(priv));
+		ns = skb_realloc_headroom(skb, dpaa2_eth_needed_headroom(priv));
 		if (unlikely(!ns)) {
 			percpu_stats->tx_dropped++;
 			goto err_alloc_headroom;
@@ -718,6 +732,23 @@ static int set_tx_csum(struct dpaa2_eth_priv *priv, bool enable)
 	return 0;
 }
 
+/* Free buffers acquired from the buffer pool or which were meant to
+ * be released in the pool
+ */
+static void free_bufs(struct dpaa2_eth_priv *priv, u64 *buf_array, int count)
+{
+	struct device *dev = priv->net_dev->dev.parent;
+	void *vaddr;
+	int i;
+
+	for (i = 0; i < count; i++) {
+		vaddr = dpaa2_iova_to_virt(priv->iommu_domain, buf_array[i]);
+		dma_unmap_single(dev, buf_array[i], DPAA2_ETH_RX_BUF_SIZE,
+				 DMA_BIDIRECTIONAL);
+		skb_free_frag(vaddr);
+	}
+}
+
 /* Perform a single release command to add buffers
  * to the specified buffer pool
  */
@@ -727,17 +758,17 @@ static int add_bufs(struct dpaa2_eth_priv *priv, u16 bpid)
 	u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
 	void *buf;
 	dma_addr_t addr;
-	int i;
+	int i, err;
 
 	for (i = 0; i < DPAA2_ETH_BUFS_PER_CMD; i++) {
 		/* Allocate buffer visible to WRIOP + skb shared info +
 		 * alignment padding
 		 */
-		buf = napi_alloc_frag(DPAA2_ETH_BUF_RAW_SIZE);
+		buf = napi_alloc_frag(dpaa2_eth_buf_raw_size(priv));
 		if (unlikely(!buf))
 			goto err_alloc;
 
-		buf = PTR_ALIGN(buf, DPAA2_ETH_RX_BUF_ALIGN);
+		buf = PTR_ALIGN(buf, priv->rx_buf_align);
 
 		addr = dma_map_single(dev, buf, DPAA2_ETH_RX_BUF_SIZE,
 				      DMA_FROM_DEVICE);
@@ -748,28 +779,33 @@ static int add_bufs(struct dpaa2_eth_priv *priv, u16 bpid)
 
 		/* tracing point */
 		trace_dpaa2_eth_buf_seed(priv->net_dev,
-					 buf, DPAA2_ETH_BUF_RAW_SIZE,
+					 buf, dpaa2_eth_buf_raw_size(priv),
 					 addr, DPAA2_ETH_RX_BUF_SIZE,
 					 bpid);
 	}
 
 release_bufs:
-	/* In case the portal is busy, retry until successful.
-	 * The buffer release function would only fail if the QBMan portal
-	 * was busy, which implies portal contention (i.e. more CPUs than
-	 * portals, i.e. GPPs w/o affine DPIOs). For all practical purposes,
-	 * there is little we can realistically do, short of giving up -
-	 * in which case we'd risk depleting the buffer pool and never again
-	 * receiving the Rx interrupt which would kick-start the refill logic.
-	 * So just keep retrying, at the risk of being moved to ksoftirqd.
-	 */
-	while (dpaa2_io_service_release(NULL, bpid, buf_array, i))
+	/* In case the portal is busy, retry until successful */
+	while ((err = dpaa2_io_service_release(NULL, bpid,
+					       buf_array, i)) == -EBUSY)
 		cpu_relax();
+
+	/* If release command failed, clean up and bail out;
+	 * not much else we can do about it
+	 */
+	if (err) {
+		free_bufs(priv, buf_array, i);
+		return 0;
+	}
+
 	return i;
 
 err_map:
 	skb_free_frag(buf);
 err_alloc:
+	/* If we managed to allocate at least some buffers,
+	 * release them to hardware
+	 */
 	if (i)
 		goto release_bufs;
 
@@ -811,10 +847,8 @@ static int seed_pool(struct dpaa2_eth_priv *priv, u16 bpid)
  */
 static void drain_bufs(struct dpaa2_eth_priv *priv, int count)
 {
-	struct device *dev = priv->net_dev->dev.parent;
 	u64 buf_array[DPAA2_ETH_BUFS_PER_CMD];
-	void *vaddr;
-	int ret, i;
+	int ret;
 
 	do {
 		ret = dpaa2_io_service_acquire(NULL, priv->bpid,
@@ -823,15 +857,7 @@ static void drain_bufs(struct dpaa2_eth_priv *priv, int count)
 			netdev_err(priv->net_dev, "dpaa2_io_service_acquire() failed\n");
 			return;
 		}
-		for (i = 0; i < ret; i++) {
-			/* Same logic as on regular Rx path */
-			vaddr = dpaa2_iova_to_virt(priv->iommu_domain,
-						   buf_array[i]);
-			dma_unmap_single(dev, buf_array[i],
-					 DPAA2_ETH_RX_BUF_SIZE,
-					 DMA_FROM_DEVICE);
-			skb_free_frag(vaddr);
-		}
+		free_bufs(priv, buf_array, ret);
 	} while (ret);
 }
 
@@ -927,13 +953,14 @@ static int dpaa2_eth_poll(struct napi_struct *napi, int budget)
 			break;
 	}
 
-	if (cleaned < budget) {
-		napi_complete_done(napi, cleaned);
+	if (cleaned < budget && napi_complete_done(napi, cleaned)) {
 		/* Re-enable data available notifications */
 		do {
 			err = dpaa2_io_service_rearm(NULL, &ch->nctx);
 			cpu_relax();
 		} while (err == -EBUSY);
+		WARN_ONCE(err, "CDAN notifications rearm failed on core %d",
+			  ch->nctx.desired_cpu);
 	}
 
 	ch->stats.frames += cleaned;
@@ -1415,34 +1442,32 @@ static struct fsl_mc_device *setup_dpcon(struct dpaa2_eth_priv *priv)
 	err = dpcon_open(priv->mc_io, 0, dpcon->obj_desc.id, &dpcon->mc_handle);
 	if (err) {
 		dev_err(dev, "dpcon_open() failed\n");
-		goto err_open;
+		goto free;
 	}
 
 	err = dpcon_reset(priv->mc_io, 0, dpcon->mc_handle);
 	if (err) {
 		dev_err(dev, "dpcon_reset() failed\n");
-		goto err_reset;
+		goto close;
 	}
 
 	err = dpcon_get_attributes(priv->mc_io, 0, dpcon->mc_handle, &attrs);
 	if (err) {
 		dev_err(dev, "dpcon_get_attributes() failed\n");
-		goto err_get_attr;
+		goto close;
 	}
 
 	err = dpcon_enable(priv->mc_io, 0, dpcon->mc_handle);
 	if (err) {
 		dev_err(dev, "dpcon_enable() failed\n");
-		goto err_enable;
+		goto close;
 	}
 
 	return dpcon;
 
-err_enable:
-err_get_attr:
-err_reset:
+close:
 	dpcon_close(priv->mc_io, 0, dpcon->mc_handle);
-err_open:
+free:
 	fsl_mc_object_free(dpcon);
 
 	return NULL;
@@ -1749,66 +1774,32 @@ static void free_dpbp(struct dpaa2_eth_priv *priv)
 	fsl_mc_object_free(priv->dpbp_dev);
 }
 
-/* Configure the DPNI object this interface is associated with */
-static int setup_dpni(struct fsl_mc_device *ls_dev)
+static int set_buffer_layout(struct dpaa2_eth_priv *priv)
 {
-	struct device *dev = &ls_dev->dev;
-	struct dpaa2_eth_priv *priv;
-	struct net_device *net_dev;
+	struct device *dev = priv->net_dev->dev.parent;
 	struct dpni_buffer_layout buf_layout = {0};
 	int err;
 
-	net_dev = dev_get_drvdata(dev);
-	priv = netdev_priv(net_dev);
-
-	/* get a handle for the DPNI object */
-	err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
-	if (err) {
-		dev_err(dev, "dpni_open() failed\n");
-		goto err_open;
-	}
-
-	ls_dev->mc_io = priv->mc_io;
-	ls_dev->mc_handle = priv->mc_token;
-
-	err = dpni_reset(priv->mc_io, 0, priv->mc_token);
-	if (err) {
-		dev_err(dev, "dpni_reset() failed\n");
-		goto err_reset;
-	}
-
-	err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
-				  &priv->dpni_attrs);
-	if (err) {
-		dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
-		goto err_get_attr;
-	}
+	/* We need to check for WRIOP version 1.0.0, but depending on the MC
+	 * version, this number is not always provided correctly on rev1.
+	 * We need to check for both alternatives in this situation.
+	 */
+	if (priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(0, 0, 0) ||
+	    priv->dpni_attrs.wriop_version == DPAA2_WRIOP_VERSION(1, 0, 0))
+		priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN_REV1;
+	else
+		priv->rx_buf_align = DPAA2_ETH_RX_BUF_ALIGN;
 
-	/* Configure buffer layouts */
-	/* rx buffer */
-	buf_layout.pass_parser_result = true;
+	/* tx buffer */
 	buf_layout.pass_frame_status = true;
 	buf_layout.private_data_size = DPAA2_ETH_SWA_SIZE;
-	buf_layout.data_align = DPAA2_ETH_RX_BUF_ALIGN;
-	buf_layout.options = DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
-			     DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
-			     DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE |
-			     DPNI_BUF_LAYOUT_OPT_DATA_ALIGN;
-	err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
-				     DPNI_QUEUE_RX, &buf_layout);
-	if (err) {
-		dev_err(dev, "dpni_set_buffer_layout(RX) failed\n");
-		goto err_buf_layout;
-	}
-
-	/* tx buffer */
 	buf_layout.options = DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
 			     DPNI_BUF_LAYOUT_OPT_PRIVATE_DATA_SIZE;
 	err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
 				     DPNI_QUEUE_TX, &buf_layout);
 	if (err) {
 		dev_err(dev, "dpni_set_buffer_layout(TX) failed\n");
-		goto err_buf_layout;
+		return err;
 	}
 
 	/* tx-confirm buffer */
@@ -1817,7 +1808,7 @@ static int setup_dpni(struct fsl_mc_device *ls_dev)
 				     DPNI_QUEUE_TX_CONFIRM, &buf_layout);
 	if (err) {
 		dev_err(dev, "dpni_set_buffer_layout(TX_CONF) failed\n");
-		goto err_buf_layout;
+		return err;
 	}
 
 	/* Now that we've set our tx buffer layout, retrieve the minimum
@@ -1827,24 +1818,76 @@ static int setup_dpni(struct fsl_mc_device *ls_dev)
 				      &priv->tx_data_offset);
 	if (err) {
 		dev_err(dev, "dpni_get_tx_data_offset() failed\n");
-		goto err_data_offset;
+		return err;
 	}
 
 	if ((priv->tx_data_offset % 64) != 0)
 		dev_warn(dev, "Tx data offset (%d) not a multiple of 64B\n",
 			 priv->tx_data_offset);
 
-	/* Accommodate software annotation space (SWA) */
-	priv->tx_data_offset += DPAA2_ETH_SWA_SIZE;
+	/* rx buffer */
+	buf_layout.pass_parser_result = true;
+	buf_layout.data_align = priv->rx_buf_align;
+	buf_layout.data_head_room = dpaa2_eth_rx_head_room(priv);
+	buf_layout.private_data_size = 0;
+	buf_layout.options = DPNI_BUF_LAYOUT_OPT_PARSER_RESULT |
+			     DPNI_BUF_LAYOUT_OPT_FRAME_STATUS |
+			     DPNI_BUF_LAYOUT_OPT_DATA_ALIGN |
+			     DPNI_BUF_LAYOUT_OPT_DATA_HEAD_ROOM;
+	err = dpni_set_buffer_layout(priv->mc_io, 0, priv->mc_token,
+				     DPNI_QUEUE_RX, &buf_layout);
+	if (err) {
+		dev_err(dev, "dpni_set_buffer_layout(RX) failed\n");
+		return err;
+	}
 
 	return 0;
+}
 
-err_data_offset:
-err_buf_layout:
-err_get_attr:
-err_reset:
+/* Configure the DPNI object this interface is associated with */
+static int setup_dpni(struct fsl_mc_device *ls_dev)
+{
+	struct device *dev = &ls_dev->dev;
+	struct dpaa2_eth_priv *priv;
+	struct net_device *net_dev;
+	int err;
+
+	net_dev = dev_get_drvdata(dev);
+	priv = netdev_priv(net_dev);
+
+	/* get a handle for the DPNI object */
+	err = dpni_open(priv->mc_io, 0, ls_dev->obj_desc.id, &priv->mc_token);
+	if (err) {
+		dev_err(dev, "dpni_open() failed\n");
+		return err;
+	}
+
+	ls_dev->mc_io = priv->mc_io;
+	ls_dev->mc_handle = priv->mc_token;
+
+	err = dpni_reset(priv->mc_io, 0, priv->mc_token);
+	if (err) {
+		dev_err(dev, "dpni_reset() failed\n");
+		goto close;
+	}
+
+	err = dpni_get_attributes(priv->mc_io, 0, priv->mc_token,
+				  &priv->dpni_attrs);
+	if (err) {
+		dev_err(dev, "dpni_get_attributes() failed (err=%d)\n", err);
+		goto close;
+	}
+
+	err = set_buffer_layout(priv);
+	if (err)
+		goto close;
+
+
+	return 0;
+
+close:
 	dpni_close(priv->mc_io, 0, priv->mc_token);
-err_open:
+
 	return err;
 }
 
@@ -2085,7 +2128,7 @@ static int bind_dpni(struct dpaa2_eth_priv *priv)
 	 */
 	err = dpaa2_eth_set_hash(net_dev, DPAA2_RXH_SUPPORTED);
 	if (err)
-		netdev_err(net_dev, "Failed to configure hashing\n");
+		dev_err(dev, "Failed to configure hashing\n");
 
 	/* Configure handling of error frames */
 	err_cfg.errors = DPAA2_FAS_RX_ERR_MASK;
@@ -2230,6 +2273,7 @@ static int netdev_init(struct net_device *net_dev)
 {
 	struct device *dev = net_dev->dev.parent;
 	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	u16 rx_headroom, req_headroom;
 	u8 bcast_addr[ETH_ALEN];
 	u8 num_queues;
 	int err;
@@ -2251,7 +2295,20 @@ static int netdev_init(struct net_device *net_dev)
 	/* Reserve enough space to align buffer as per hardware requirement;
 	 * NOTE: priv->tx_data_offset MUST be initialized at this point.
 	 */
-	net_dev->needed_headroom = DPAA2_ETH_NEEDED_HEADROOM(priv);
+	net_dev->needed_headroom = dpaa2_eth_needed_headroom(priv);
+
+	/* If headroom guaranteed by hardware in the Rx frame buffer is
+	 * smaller than the Tx headroom required by the stack, issue a
+	 * one time warning. This will most likely mean skbs forwarded to
+	 * another DPAA2 network interface will get reallocated, with a
+	 * significant performance impact.
+	 */
+	req_headroom = LL_RESERVED_SPACE(net_dev) - ETH_HLEN;
+	rx_headroom = ALIGN(DPAA2_ETH_RX_HWA_SIZE +
+			    dpaa2_eth_rx_head_room(priv), priv->rx_buf_align);
+	if (req_headroom > rx_headroom)
+		dev_info_once(dev, "Required headroom (%d) greater than available (%d)\n",
+			      req_headroom, rx_headroom);
 
 	/* Set MTU limits */
 	net_dev->min_mtu = 68;
@@ -2303,7 +2360,7 @@ static irqreturn_t dpni_irq0_handler(int irq_num, void *arg)
 
 static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg)
 {
-	u32 status = 0, clear = 0;
+	u32 status = ~0;
 	struct device *dev = (struct device *)arg;
 	struct fsl_mc_device *dpni_dev = to_fsl_mc_device(dev);
 	struct net_device *net_dev = dev_get_drvdata(dev);
@@ -2313,18 +2370,12 @@ static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg)
 				  DPNI_IRQ_INDEX, &status);
 	if (unlikely(err)) {
 		netdev_err(net_dev, "Can't get irq status (err %d)\n", err);
-		clear = 0xffffffff;
-		goto out;
+		return IRQ_HANDLED;
 	}
 
-	if (status & DPNI_IRQ_EVENT_LINK_CHANGED) {
-		clear |= DPNI_IRQ_EVENT_LINK_CHANGED;
+	if (status & DPNI_IRQ_EVENT_LINK_CHANGED)
 		link_state_update(netdev_priv(net_dev));
-	}
 
-out:
-	dpni_clear_irq_status(dpni_dev->mc_io, 0, dpni_dev->mc_handle,
-			      DPNI_IRQ_INDEX, clear);
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
index bfbabae1aad8..5b3ab9f62d5e 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-eth.h
@@ -45,6 +45,8 @@
 
 #include "dpaa2-eth-trace.h"
 
+#define DPAA2_WRIOP_VERSION(x, y, z) ((x) << 10 | (y) << 5 | (z) << 0)
+
 #define DPAA2_ETH_STORE_SIZE		16
 
 /* Maximum number of scatter-gather entries in an ingress frame,
@@ -80,23 +82,21 @@
  */
 #define DPAA2_ETH_BUFS_PER_CMD		7
 
-/* Hardware requires alignment for ingress/egress buffer addresses
- * and ingress buffer lengths.
- */
-#define DPAA2_ETH_RX_BUF_SIZE		2048
+/* Hardware requires alignment for ingress/egress buffer addresses */
 #define DPAA2_ETH_TX_BUF_ALIGN		64
-#define DPAA2_ETH_RX_BUF_ALIGN		256
-#define DPAA2_ETH_NEEDED_HEADROOM(p_priv) \
-	((p_priv)->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN)
 
-/* Hardware only sees DPAA2_ETH_RX_BUF_SIZE, but we need to allocate ingress
- * buffers large enough to allow building an skb around them and also account
- * for alignment restrictions
+#define DPAA2_ETH_RX_BUF_SIZE		2048
+#define DPAA2_ETH_SKB_SIZE \
+	(DPAA2_ETH_RX_BUF_SIZE + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
+
+/* Hardware annotation area in RX  buffers */
+#define DPAA2_ETH_RX_HWA_SIZE		64
+
+/* Due to a limitation in WRIOP 1.0.0, the RX buffer data must be aligned
+ * to 256B. For newer revisions, the requirement is only for 64B alignment
  */
-#define DPAA2_ETH_BUF_RAW_SIZE \
-	(DPAA2_ETH_RX_BUF_SIZE + \
-	SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) + \
-	DPAA2_ETH_RX_BUF_ALIGN)
+#define DPAA2_ETH_RX_BUF_ALIGN_REV1	256
+#define DPAA2_ETH_RX_BUF_ALIGN		64
 
 /* We are accommodating a skb backpointer and some S/G info
  * in the frame's software annotation. The hardware
@@ -134,7 +134,7 @@ struct dpaa2_eth_swa {
 					 DPAA2_FD_CTRL_FAERR)
 
 /* Annotation bits in FD CTRL */
-#define DPAA2_FD_CTRL_ASAL		0x00020000	/* ASAL = 128 */
+#define DPAA2_FD_CTRL_ASAL		0x00010000	/* ASAL = 64 */
 #define DPAA2_FD_CTRL_PTA		0x00800000
 #define DPAA2_FD_CTRL_PTV1		0x00400000
 
@@ -318,6 +318,7 @@ struct dpaa2_eth_priv {
 	struct iommu_domain *iommu_domain;
 
 	u16 tx_qdid;
+	u16 rx_buf_align;
 	struct fsl_mc_io *mc_io;
 	/* Cores which have an affine DPIO/DPCON.
 	 * This is the cpu set on which Rx and Tx conf frames are processed
@@ -353,6 +354,29 @@ struct dpaa2_eth_priv {
 extern const struct ethtool_ops dpaa2_ethtool_ops;
 extern const char dpaa2_eth_drv_version[];
 
+/* Hardware only sees DPAA2_ETH_RX_BUF_SIZE, but the skb built around
+ * the buffer also needs space for its shared info struct, and we need
+ * to allocate enough to accommodate hardware alignment restrictions
+ */
+static inline unsigned int dpaa2_eth_buf_raw_size(struct dpaa2_eth_priv *priv)
+{
+	return DPAA2_ETH_SKB_SIZE + priv->rx_buf_align;
+}
+
+static inline
+unsigned int dpaa2_eth_needed_headroom(struct dpaa2_eth_priv *priv)
+{
+	return priv->tx_data_offset + DPAA2_ETH_TX_BUF_ALIGN - HH_DATA_MOD;
+}
+
+/* Extra headroom space requested to hardware, in order to make sure there's
+ * no realloc'ing in forwarding scenarios
+ */
+static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv)
+{
+	return dpaa2_eth_needed_headroom(priv) - DPAA2_ETH_RX_HWA_SIZE;
+}
+
 static int dpaa2_eth_queue_count(struct dpaa2_eth_priv *priv)
 {
 	return priv->dpni_attrs.num_queues;
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
index 031179ab3a22..ebe8fd6ccf2c 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
@@ -76,10 +76,22 @@ static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = {
 static void dpaa2_eth_get_drvinfo(struct net_device *net_dev,
 				  struct ethtool_drvinfo *drvinfo)
 {
+	struct dpaa2_eth_priv *priv = netdev_priv(net_dev);
+	u16 fw_major, fw_minor;
+	int err;
+
 	strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver));
 	strlcpy(drvinfo->version, dpaa2_eth_drv_version,
 		sizeof(drvinfo->version));
-	strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
+
+	err =  dpni_get_api_version(priv->mc_io, 0, &fw_major, &fw_minor);
+	if (!err)
+		snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
+			 "%u.%u", fw_major, fw_minor);
+	else
+		strlcpy(drvinfo->fw_version, "N/A",
+			sizeof(drvinfo->fw_version));
+
 	strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent),
 		sizeof(drvinfo->bus_info));
 }
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h b/drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
index 57df22292233..3120e22496d0 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni-cmd.h
@@ -538,4 +538,9 @@ struct dpni_rsp_get_taildrop {
 	__le32 threshold;
 };
 
+struct dpni_rsp_get_api_version {
+	u16 major;
+	u16 minor;
+};
+
 #endif /* _FSL_DPNI_CMD_H */
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpni.c b/drivers/staging/fsl-dpaa2/ethernet/dpni.c
index 04a5b14bc1c5..e8be76181c36 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni.c
@@ -1594,3 +1594,35 @@ int dpni_get_taildrop(struct fsl_mc_io *mc_io,
 
 	return 0;
 }
+
+/**
+ * dpni_get_api_version() - Get Data Path Network Interface API version
+ * @mc_io:	Pointer to MC portal's I/O object
+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver:	Major version of data path network interface API
+ * @minor_ver:	Minor version of data path network interface API
+ *
+ * Return:	'0' on Success; Error code otherwise.
+ */
+int dpni_get_api_version(struct fsl_mc_io *mc_io,
+			 u32 cmd_flags,
+			 u16 *major_ver,
+			 u16 *minor_ver)
+{
+	struct dpni_rsp_get_api_version *rsp_params;
+	struct mc_command cmd = { 0 };
+	int err;
+
+	cmd.header = mc_encode_cmd_header(DPNI_CMDID_GET_API_VERSION,
+					  cmd_flags, 0);
+
+	err = mc_send_command(mc_io, &cmd);
+	if (err)
+		return err;
+
+	rsp_params = (struct dpni_rsp_get_api_version *)cmd.params;
+	*major_ver = le16_to_cpu(rsp_params->major);
+	*minor_ver = le16_to_cpu(rsp_params->minor);
+
+	return 0;
+}
diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpni.h b/drivers/staging/fsl-dpaa2/ethernet/dpni.h
index 282e5e85ffa7..ce86a816af45 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpni.h
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpni.h
@@ -829,4 +829,9 @@ struct dpni_rule_cfg {
 	u8	key_size;
 };
 
+int dpni_get_api_version(struct fsl_mc_io *mc_io,
+			 u32 cmd_flags,
+			 u16 *major_ver,
+			 u16 *minor_ver);
+
 #endif /* __FSL_DPNI_H */
diff --git a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
index f8096828f5b7..a609ec82daf3 100644
--- a/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
@@ -76,7 +76,7 @@ static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d,
 	if (d)
 		return d;
 
-	if (unlikely(cpu >= num_possible_cpus()))
+	if (cpu != DPAA2_IO_ANY_CPU && cpu >= num_possible_cpus())
 		return NULL;
 
 	/*
@@ -121,7 +121,7 @@ struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
 		return NULL;
 
 	/* check if CPU is out of range (-1 means any cpu) */
-	if (desc->cpu >= num_possible_cpus()) {
+	if (desc->cpu != DPAA2_IO_ANY_CPU && desc->cpu >= num_possible_cpus()) {
 		kfree(obj);
 		return NULL;
 	}
diff --git a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
index 038da4d1ebd0..f74a6f1764bb 100644
--- a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
@@ -137,7 +137,7 @@ static void fsl_mc_msi_update_chip_ops(struct msi_domain_info *info)
 {
 	struct irq_chip *chip = info->chip;
 
-	if (WARN_ON((!chip)))
+	if (WARN_ON(!chip))
 		return;
 
 	/*
diff --git a/drivers/staging/fsl-mc/include/dpaa2-io.h b/drivers/staging/fsl-mc/include/dpaa2-io.h
index c5646096c5d4..afc2d060d077 100644
--- a/drivers/staging/fsl-mc/include/dpaa2-io.h
+++ b/drivers/staging/fsl-mc/include/dpaa2-io.h
@@ -54,6 +54,8 @@ struct device;
  * for dequeue.
  */
 
+#define DPAA2_IO_ANY_CPU	-1
+
 /**
  * struct dpaa2_io_desc - The DPIO descriptor
  * @receives_notifications: Use notificaton mode. Non-zero if the DPIO
@@ -91,8 +93,8 @@ irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj);
  * @cb:           The callback to be invoked when the notification arrives
  * @is_cdan:      Zero for FQDAN, non-zero for CDAN
  * @id:           FQID or channel ID, needed for rearm
- * @desired_cpu:  The cpu on which the notifications will show up. -1 means
- *                any CPU.
+ * @desired_cpu:  The cpu on which the notifications will show up. Use
+ *                DPAA2_IO_ANY_CPU if don't care
  * @dpio_id:      The dpio index
  * @qman64:       The 64-bit context value shows up in the FQDAN/CDAN.
  * @node:         The list node
diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index 41a49c8194e5..bba7e9c888b3 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -217,13 +217,6 @@ static void fwtty_log_tx_error(struct fwtty_port *port, int rcode)
 	}
 }
 
-static void fwtty_txn_constructor(void *this)
-{
-	struct fwtty_transaction *txn = this;
-
-	init_timer(&txn->fw_txn.split_timeout_timer);
-}
-
 static void fwtty_common_callback(struct fw_card *card, int rcode,
 				  void *payload, size_t len, void *cb_data)
 {
@@ -1806,9 +1799,9 @@ static void fwserial_release_port(struct fwtty_port *port, bool reset)
 		(*port->fwcon_ops->notify)(FWCON_NOTIFY_DETACH, port->con_data);
 }
 
-static void fwserial_plug_timeout(unsigned long data)
+static void fwserial_plug_timeout(struct timer_list *t)
 {
-	struct fwtty_peer *peer = (struct fwtty_peer *)data;
+	struct fwtty_peer *peer = from_timer(peer, t, timer);
 	struct fwtty_port *port;
 
 	spin_lock_bh(&peer->lock);
@@ -1860,7 +1853,6 @@ static int fwserial_connect_peer(struct fwtty_peer *peer)
 
 	fill_plug_req(pkt, peer->port);
 
-	setup_timer(&peer->timer, fwserial_plug_timeout, (unsigned long)peer);
 	mod_timer(&peer->timer, jiffies + VIRT_CABLE_PLUG_TIMEOUT);
 	spin_unlock_bh(&peer->lock);
 
@@ -2098,7 +2090,7 @@ static int fwserial_add_peer(struct fw_serial *serial, struct fw_unit *unit)
 	spin_lock_init(&peer->lock);
 	peer->port = NULL;
 
-	init_timer(&peer->timer);
+	timer_setup(&peer->timer, fwserial_plug_timeout, 0);
 	INIT_WORK(&peer->work, fwserial_peer_workfn);
 	INIT_DELAYED_WORK(&peer->connect, fwserial_auto_connect);
 
@@ -2863,7 +2855,7 @@ static int __init fwserial_init(void)
 
 	fwtty_txn_cache = kmem_cache_create("fwtty_txn_cache",
 					    sizeof(struct fwtty_transaction),
-					    0, 0, fwtty_txn_constructor);
+					    0, 0, NULL);
 	if (!fwtty_txn_cache) {
 		err = -ENOMEM;
 		goto unregister_loop;
diff --git a/drivers/staging/fwserial/fwserial.h b/drivers/staging/fwserial/fwserial.h
index 30b2481fe32b..1d15f183e0fa 100644
--- a/drivers/staging/fwserial/fwserial.h
+++ b/drivers/staging/fwserial/fwserial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FIREWIRE_FWSERIAL_H
 #define _FIREWIRE_FWSERIAL_H
 
diff --git a/drivers/staging/gdm724x/Makefile b/drivers/staging/gdm724x/Makefile
index ba7f11a6a097..e61b95788c9f 100644
--- a/drivers/staging/gdm724x/Makefile
+++ b/drivers/staging/gdm724x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_LTE_GDM724X) := gdmulte.o
 gdmulte-y += gdm_lte.o netlink_k.o
 gdmulte-y += gdm_usb.o gdm_endian.o
diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index 9ab6ce231f11..0527b0d1c1d0 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -26,6 +26,7 @@
 #include <linux/icmp.h>
 #include <linux/icmpv6.h>
 #include <linux/uaccess.h>
+#include <linux/errno.h>
 #include <net/ndisc.h>
 
 #include "gdm_lte.h"
@@ -118,6 +119,10 @@ static int gdm_lte_emulate_arp(struct sk_buff *skb_in, u32 nic_type)
 	void *mac_header_data;
 	u32 mac_header_len;
 
+	/* Check for skb->len, discard if empty */
+	if (skb_in->len == 0)
+		return -ENODATA;
+
 	/* Format the mac header so that it can be put to skb */
 	if (ntohs(((struct ethhdr *)skb_in->data)->h_proto) == ETH_P_8021Q) {
 		memcpy(&vlan_eth, skb_in->data, sizeof(struct vlan_ethhdr));
@@ -241,13 +246,13 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
 	if (ntohs(((struct ethhdr *)skb_in->data)->h_proto) == ETH_P_8021Q) {
 		memcpy(&vlan_eth, skb_in->data, sizeof(struct vlan_ethhdr));
 		if (ntohs(vlan_eth.h_vlan_encapsulated_proto) != ETH_P_IPV6)
-			return -1;
+			return -EPROTONOSUPPORT;
 		mac_header_data = &vlan_eth;
 		mac_header_len = VLAN_ETH_HLEN;
 	} else {
 		memcpy(&eth, skb_in->data, sizeof(struct ethhdr));
 		if (ntohs(eth.h_proto) != ETH_P_IPV6)
-			return -1;
+			return -EPROTONOSUPPORT;
 		mac_header_data = &eth;
 		mac_header_len = ETH_HLEN;
 	}
@@ -255,13 +260,13 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
 	/* Check if this is IPv6 ICMP packet */
 	ipv6_in = (struct ipv6hdr *)(skb_in->data + mac_header_len);
 	if (ipv6_in->version != 6 || ipv6_in->nexthdr != IPPROTO_ICMPV6)
-		return -1;
+		return -EPROTONOSUPPORT;
 
 	/* Check if this is NDP packet */
 	icmp6_in = (struct icmp6hdr *)(skb_in->data + mac_header_len +
 					sizeof(struct ipv6hdr));
 	if (icmp6_in->icmp6_type == NDISC_ROUTER_SOLICITATION) { /* Check RS */
-		return -1;
+		return -EPROTONOSUPPORT;
 	} else if (icmp6_in->icmp6_type == NDISC_NEIGHBOUR_SOLICITATION) {
 		/* Check NS */
 		u8 icmp_na[sizeof(struct icmp6hdr) +
@@ -305,7 +310,7 @@ static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
 		icmp6_out.icmp6_cksum = icmp6_checksum(&ipv6_out,
 					(u16 *)icmp_na, sizeof(icmp_na));
 	} else {
-		return -1;
+		return -EINVAL;
 	}
 
 	/* Fill the destination mac with source mac of the received packet */
@@ -412,7 +417,7 @@ static int gdm_lte_tx(struct sk_buff *skb, struct net_device *dev)
 	nic_type = gdm_lte_tx_nic_type(dev, skb);
 	if (nic_type == 0) {
 		netdev_err(dev, "tx - invalid nic_type\n");
-		return -1;
+		return -EMEDIUMTYPE;
 	}
 
 	if (nic_type & NIC_TYPE_ARP) {
@@ -539,7 +544,7 @@ int gdm_lte_event_init(void)
 	}
 
 	pr_err("event init failed\n");
-	return -1;
+	return -ENODATA;
 }
 
 void gdm_lte_event_exit(void)
diff --git a/drivers/staging/greybus/Documentation/firmware/authenticate.c b/drivers/staging/greybus/Documentation/firmware/authenticate.c
index b836f0a20c36..806e75b7f405 100644
--- a/drivers/staging/greybus/Documentation/firmware/authenticate.c
+++ b/drivers/staging/greybus/Documentation/firmware/authenticate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * Sample code to test CAP protocol
  *
diff --git a/drivers/staging/greybus/Documentation/firmware/firmware.c b/drivers/staging/greybus/Documentation/firmware/firmware.c
index c73dee9d13c1..31d9c23e2eeb 100644
--- a/drivers/staging/greybus/Documentation/firmware/firmware.c
+++ b/drivers/staging/greybus/Documentation/firmware/firmware.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * Sample code to test firmware-management protocol
  *
diff --git a/drivers/staging/greybus/Makefile b/drivers/staging/greybus/Makefile
index 23e1cb7bff8e..2551ed16b742 100644
--- a/drivers/staging/greybus/Makefile
+++ b/drivers/staging/greybus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Greybus core
 greybus-y :=	core.o		\
 		debugfs.o	\
diff --git a/drivers/staging/greybus/arche-apb-ctrl.c b/drivers/staging/greybus/arche-apb-ctrl.c
index 0412f3d06efb..b0c66112eb18 100644
--- a/drivers/staging/greybus/arche-apb-ctrl.c
+++ b/drivers/staging/greybus/arche-apb-ctrl.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Arche Platform driver to control APB.
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
index 21ac92d0f533..ace4eb365c0e 100644
--- a/drivers/staging/greybus/arche-platform.c
+++ b/drivers/staging/greybus/arche-platform.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Arche Platform driver to enable Unipro link.
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/staging/greybus/arche_platform.h b/drivers/staging/greybus/arche_platform.h
index bcffc69d0960..02056351d25a 100644
--- a/drivers/staging/greybus/arche_platform.h
+++ b/drivers/staging/greybus/arche_platform.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Arche Platform driver to enable Unipro link.
  *
  * Copyright 2015-2016 Google Inc.
  * Copyright 2015-2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __ARCHE_PLATFORM_H
diff --git a/drivers/staging/greybus/arpc.h b/drivers/staging/greybus/arpc.h
index c0b63c0130c5..3534ba1a4e6c 100644
--- a/drivers/staging/greybus/arpc.h
+++ b/drivers/staging/greybus/arpc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/drivers/staging/greybus/audio_apbridgea.c b/drivers/staging/greybus/audio_apbridgea.c
index 1b4252d5d255..7ebb1bde5cb7 100644
--- a/drivers/staging/greybus/audio_apbridgea.c
+++ b/drivers/staging/greybus/audio_apbridgea.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Audio Device Class Protocol helpers
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #include "greybus.h"
diff --git a/drivers/staging/greybus/audio_apbridgea.h b/drivers/staging/greybus/audio_apbridgea.h
index b94cb05c89e4..42ac6059bfc7 100644
--- a/drivers/staging/greybus/audio_apbridgea.h
+++ b/drivers/staging/greybus/audio_apbridgea.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: BSD-3-Clause
 /**
  * Copyright (c) 2015-2016 Google Inc.
  * All rights reserved.
diff --git a/drivers/staging/greybus/audio_codec.c b/drivers/staging/greybus/audio_codec.c
index a6d01f0761f3..fdb9e83cc34b 100644
--- a/drivers/staging/greybus/audio_codec.c
+++ b/drivers/staging/greybus/audio_codec.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * APBridge ALSA SoC dummy codec driver
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/staging/greybus/audio_codec.h b/drivers/staging/greybus/audio_codec.h
index 6fb064c69a36..161b37c8ef17 100644
--- a/drivers/staging/greybus/audio_codec.h
+++ b/drivers/staging/greybus/audio_codec.h
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus audio driver
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __LINUX_GBAUDIO_CODEC_H
diff --git a/drivers/staging/greybus/audio_gb.c b/drivers/staging/greybus/audio_gb.c
index 7884d8482dc0..8894f1c87d48 100644
--- a/drivers/staging/greybus/audio_gb.c
+++ b/drivers/staging/greybus/audio_gb.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Audio Device Class Protocol helpers
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #include "greybus.h"
diff --git a/drivers/staging/greybus/audio_manager.c b/drivers/staging/greybus/audio_manager.c
index aa6508b44fab..d44b070d8862 100644
--- a/drivers/staging/greybus/audio_manager.c
+++ b/drivers/staging/greybus/audio_manager.c
@@ -1,16 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/string.h>
 #include <linux/sysfs.h>
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/rwlock.h>
+#include <linux/spinlock.h>
 #include <linux/idr.h>
 
 #include "audio_manager.h"
diff --git a/drivers/staging/greybus/audio_manager.h b/drivers/staging/greybus/audio_manager.h
index 5ab8f5e0ed3f..dcb1a20f5ff1 100644
--- a/drivers/staging/greybus/audio_manager.h
+++ b/drivers/staging/greybus/audio_manager.h
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef _GB_AUDIO_MANAGER_H_
diff --git a/drivers/staging/greybus/audio_manager_module.c b/drivers/staging/greybus/audio_manager_module.c
index adc16977452d..52342e832e3b 100644
--- a/drivers/staging/greybus/audio_manager_module.c
+++ b/drivers/staging/greybus/audio_manager_module.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/slab.h>
diff --git a/drivers/staging/greybus/audio_manager_private.h b/drivers/staging/greybus/audio_manager_private.h
index 079ce953c256..9d9b58fc54c4 100644
--- a/drivers/staging/greybus/audio_manager_private.h
+++ b/drivers/staging/greybus/audio_manager_private.h
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef _GB_AUDIO_MANAGER_PRIVATE_H_
diff --git a/drivers/staging/greybus/audio_manager_sysfs.c b/drivers/staging/greybus/audio_manager_sysfs.c
index 34ebd147052f..283fbed0c8ed 100644
--- a/drivers/staging/greybus/audio_manager_sysfs.c
+++ b/drivers/staging/greybus/audio_manager_sysfs.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2015-2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/string.h>
diff --git a/drivers/staging/greybus/audio_module.c b/drivers/staging/greybus/audio_module.c
index 094c3be79b33..d065334efa23 100644
--- a/drivers/staging/greybus/audio_module.c
+++ b/drivers/staging/greybus/audio_module.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus audio driver
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/staging/greybus/audio_topology.c b/drivers/staging/greybus/audio_topology.c
index 07fac3948f3a..de4b1b2b12f3 100644
--- a/drivers/staging/greybus/audio_topology.c
+++ b/drivers/staging/greybus/audio_topology.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus audio driver
  * Copyright 2015-2016 Google Inc.
  * Copyright 2015-2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include "audio_codec.h"
diff --git a/drivers/staging/greybus/authentication.c b/drivers/staging/greybus/authentication.c
index 6c5dcb1c226b..16cc65e1472b 100644
--- a/drivers/staging/greybus/authentication.c
+++ b/drivers/staging/greybus/authentication.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Component Authentication Protocol (CAP) Driver.
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include "greybus.h"
diff --git a/drivers/staging/greybus/bootrom.c b/drivers/staging/greybus/bootrom.c
index 06df0ce03150..e85ffae85dff 100644
--- a/drivers/staging/greybus/bootrom.c
+++ b/drivers/staging/greybus/bootrom.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * BOOTROM Greybus driver.
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/firmware.h>
diff --git a/drivers/staging/greybus/bundle.c b/drivers/staging/greybus/bundle.c
index d2ef57d090be..81c018da1248 100644
--- a/drivers/staging/greybus/bundle.c
+++ b/drivers/staging/greybus/bundle.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus bundles
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include "greybus.h"
diff --git a/drivers/staging/greybus/bundle.h b/drivers/staging/greybus/bundle.h
index 0c3491def96c..ffcfd43802cc 100644
--- a/drivers/staging/greybus/bundle.h
+++ b/drivers/staging/greybus/bundle.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus bundles
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __BUNDLE_H
diff --git a/drivers/staging/greybus/camera.c b/drivers/staging/greybus/camera.c
index a64517eabff4..f13f16b63d7e 100644
--- a/drivers/staging/greybus/camera.c
+++ b/drivers/staging/greybus/camera.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Camera protocol driver.
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/debugfs.h>
diff --git a/drivers/staging/greybus/connection.c b/drivers/staging/greybus/connection.c
index 2cf64640e8ec..2103168b585e 100644
--- a/drivers/staging/greybus/connection.c
+++ b/drivers/staging/greybus/connection.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus connections
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/workqueue.h>
diff --git a/drivers/staging/greybus/connection.h b/drivers/staging/greybus/connection.h
index 4d9f4c64176c..ec3f1d3ef3b9 100644
--- a/drivers/staging/greybus/connection.h
+++ b/drivers/staging/greybus/connection.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus connections
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __CONNECTION_H
diff --git a/drivers/staging/greybus/control.c b/drivers/staging/greybus/control.c
index 5b30be30a3a4..35f945a12b11 100644
--- a/drivers/staging/greybus/control.c
+++ b/drivers/staging/greybus/control.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus CPort control protocol.
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/control.h b/drivers/staging/greybus/control.h
index 4dcaec8b9cfe..643ddb9e0f92 100644
--- a/drivers/staging/greybus/control.h
+++ b/drivers/staging/greybus/control.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus CPort control protocol
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __CONTROL_H
diff --git a/drivers/staging/greybus/core.c b/drivers/staging/greybus/core.c
index ba761905b790..dafa430d176e 100644
--- a/drivers/staging/greybus/core.c
+++ b/drivers/staging/greybus/core.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus "Core"
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/staging/greybus/debugfs.c b/drivers/staging/greybus/debugfs.c
index a9d4d3da99a0..56e20c30feb5 100644
--- a/drivers/staging/greybus/debugfs.c
+++ b/drivers/staging/greybus/debugfs.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus debugfs code
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/debugfs.h>
diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c
index f7b24e0eaa6f..b082d81833a0 100644
--- a/drivers/staging/greybus/es2.c
+++ b/drivers/staging/greybus/es2.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus "AP" USB driver for "ES2" controller chips
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 #include <linux/kthread.h>
 #include <linux/sizes.h>
@@ -761,6 +760,7 @@ static int check_urb_status(struct urb *urb)
 	case -EOVERFLOW:
 		dev_err(dev, "%s: overflow actual length is %d\n",
 			__func__, urb->actual_length);
+		/* fall through */
 	case -ECONNRESET:
 	case -ENOENT:
 	case -ESHUTDOWN:
diff --git a/drivers/staging/greybus/firmware.h b/drivers/staging/greybus/firmware.h
index f4f0db1cefe8..946221307ef6 100644
--- a/drivers/staging/greybus/firmware.h
+++ b/drivers/staging/greybus/firmware.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Firmware Management Header
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __FIRMWARE_H
diff --git a/drivers/staging/greybus/fw-core.c b/drivers/staging/greybus/fw-core.c
index 454a98957ba5..388866d92f5b 100644
--- a/drivers/staging/greybus/fw-core.c
+++ b/drivers/staging/greybus/fw-core.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Firmware Core Bundle Driver.
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
diff --git a/drivers/staging/greybus/fw-download.c b/drivers/staging/greybus/fw-download.c
index 8a1a413c6cb3..d3b7cccbc10d 100644
--- a/drivers/staging/greybus/fw-download.c
+++ b/drivers/staging/greybus/fw-download.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Firmware Download Protocol Driver.
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/firmware.h>
diff --git a/drivers/staging/greybus/fw-management.c b/drivers/staging/greybus/fw-management.c
index 3cd6cf0a656b..71aec14f8181 100644
--- a/drivers/staging/greybus/fw-management.c
+++ b/drivers/staging/greybus/fw-management.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Firmware Management Protocol Driver.
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/cdev.h>
diff --git a/drivers/staging/greybus/gb-camera.h b/drivers/staging/greybus/gb-camera.h
index d45dabc5b367..ee293e461fc3 100644
--- a/drivers/staging/greybus/gb-camera.h
+++ b/drivers/staging/greybus/gb-camera.h
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Camera protocol driver.
  *
  * Copyright 2015 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 #ifndef __GB_CAMERA_H
 #define __GB_CAMERA_H
diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c
index 80c1da8224e6..6cb85c3d3572 100644
--- a/drivers/staging/greybus/gbphy.c
+++ b/drivers/staging/greybus/gbphy.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Bridged-Phy Bus driver
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/staging/greybus/gbphy.h b/drivers/staging/greybus/gbphy.h
index 8ee68055ccc4..99463489d7d6 100644
--- a/drivers/staging/greybus/gbphy.h
+++ b/drivers/staging/greybus/gbphy.h
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Bridged-Phy Bus driver
  *
  * Copyright 2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __GBPHY_H
diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c
index ee5f998b174f..b1d4698019a1 100644
--- a/drivers/staging/greybus/gpio.c
+++ b/drivers/staging/greybus/gpio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPIO Greybus driver.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/greybus.h b/drivers/staging/greybus/greybus.h
index c9bb93f23927..d03ddb7c9df0 100644
--- a/drivers/staging/greybus/greybus.h
+++ b/drivers/staging/greybus/greybus.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus driver and device API
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __LINUX_GREYBUS_H
diff --git a/drivers/staging/greybus/greybus_authentication.h b/drivers/staging/greybus/greybus_authentication.h
index 4784ed98e8a3..03ea9615b217 100644
--- a/drivers/staging/greybus/greybus_authentication.h
+++ b/drivers/staging/greybus/greybus_authentication.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * Greybus Component Authentication User Header
  *
diff --git a/drivers/staging/greybus/greybus_firmware.h b/drivers/staging/greybus/greybus_firmware.h
index 277a2acce6fd..b58281a63ba4 100644
--- a/drivers/staging/greybus/greybus_firmware.h
+++ b/drivers/staging/greybus/greybus_firmware.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * Greybus Firmware Management User Header
  *
diff --git a/drivers/staging/greybus/greybus_id.h b/drivers/staging/greybus/greybus_id.h
index 4bb1fc1b811d..f4c8440093e4 100644
--- a/drivers/staging/greybus/greybus_id.h
+++ b/drivers/staging/greybus/greybus_id.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* FIXME
  * move this to include/linux/mod_devicetable.h when merging
  */
diff --git a/drivers/staging/greybus/greybus_manifest.h b/drivers/staging/greybus/greybus_manifest.h
index d135945cefe1..2cec5cf7a846 100644
--- a/drivers/staging/greybus/greybus_manifest.h
+++ b/drivers/staging/greybus/greybus_manifest.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus manifest definition
  *
diff --git a/drivers/staging/greybus/greybus_protocols.h b/drivers/staging/greybus/greybus_protocols.h
index b1be0b0af464..9bd7b6dfb476 100644
--- a/drivers/staging/greybus/greybus_protocols.h
+++ b/drivers/staging/greybus/greybus_protocols.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * This file is provided under a dual BSD/GPLv2 license.  When using or
  * redistributing this file, you may do so under either license.
diff --git a/drivers/staging/greybus/greybus_trace.h b/drivers/staging/greybus/greybus_trace.h
index f8feae4dc3b5..7b5e2c6b1f6b 100644
--- a/drivers/staging/greybus/greybus_trace.h
+++ b/drivers/staging/greybus/greybus_trace.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus driver and device API
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM greybus
diff --git a/drivers/staging/greybus/hd.c b/drivers/staging/greybus/hd.c
index 185ae3fa10fd..969f86697673 100644
--- a/drivers/staging/greybus/hd.c
+++ b/drivers/staging/greybus/hd.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Host Device
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/hd.h b/drivers/staging/greybus/hd.h
index e7927bb1761c..6cf024a20a58 100644
--- a/drivers/staging/greybus/hd.h
+++ b/drivers/staging/greybus/hd.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Host Device
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __HD_H
diff --git a/drivers/staging/greybus/hid.c b/drivers/staging/greybus/hid.c
index 465101bbab69..04053ff075a6 100644
--- a/drivers/staging/greybus/hid.c
+++ b/drivers/staging/greybus/hid.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * HID class driver for the Greybus.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/staging/greybus/i2c.c b/drivers/staging/greybus/i2c.c
index c2a50087000c..58a37deb6579 100644
--- a/drivers/staging/greybus/i2c.c
+++ b/drivers/staging/greybus/i2c.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * I2C bridge driver for the Greybus "generic" I2C module.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/interface.c b/drivers/staging/greybus/interface.c
index 71e5cc234e78..d7b5b89a2f40 100644
--- a/drivers/staging/greybus/interface.c
+++ b/drivers/staging/greybus/interface.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus interface code
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/staging/greybus/interface.h b/drivers/staging/greybus/interface.h
index bd31b8c18d5b..1c00c5bb3ec9 100644
--- a/drivers/staging/greybus/interface.h
+++ b/drivers/staging/greybus/interface.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Interface Block code
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __INTERFACE_H
diff --git a/drivers/staging/greybus/light.c b/drivers/staging/greybus/light.c
index 3f4148c92308..010ae1e9c7fb 100644
--- a/drivers/staging/greybus/light.c
+++ b/drivers/staging/greybus/light.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Lights protocol driver.
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
@@ -925,6 +924,8 @@ static void __gb_lights_led_unregister(struct gb_channel *channel)
 		return;
 
 	led_classdev_unregister(cdev);
+	kfree(cdev->name);
+	cdev->name = NULL;
 	channel->led = NULL;
 }
 
@@ -998,11 +999,7 @@ static int gb_lights_channel_config(struct gb_light *light,
 
 	light->has_flash = true;
 
-	ret = gb_lights_channel_flash_config(channel);
-	if (ret < 0)
-		return ret;
-
-	return ret;
+	return gb_lights_channel_flash_config(channel);
 }
 
 static int gb_lights_light_config(struct gb_lights *glights, u8 id)
diff --git a/drivers/staging/greybus/log.c b/drivers/staging/greybus/log.c
index 5c5bedaf69a6..15a88574dbb0 100644
--- a/drivers/staging/greybus/log.c
+++ b/drivers/staging/greybus/log.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus driver for the log protocol
  *
  * Copyright 2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/staging/greybus/loopback.c b/drivers/staging/greybus/loopback.c
index 08e255884206..42f6f3de967c 100644
--- a/drivers/staging/greybus/loopback.c
+++ b/drivers/staging/greybus/loopback.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Loopback bridge driver for the Greybus loopback module.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -58,12 +57,7 @@ static struct gb_loopback_device gb_dev;
 struct gb_loopback_async_operation {
 	struct gb_loopback *gb;
 	struct gb_operation *operation;
-	struct timeval ts;
-	struct timer_list timer;
-	struct list_head entry;
-	struct work_struct work;
-	struct kref kref;
-	bool pending;
+	ktime_t ts;
 	int (*completion)(struct gb_loopback_async_operation *op_async);
 };
 
@@ -72,7 +66,6 @@ struct gb_loopback {
 
 	struct dentry *file;
 	struct kfifo kfifo_lat;
-	struct kfifo kfifo_ts;
 	struct mutex mutex;
 	struct task_struct *task;
 	struct list_head entry;
@@ -82,7 +75,7 @@ struct gb_loopback {
 	atomic_t outstanding_operations;
 
 	/* Per connection stats */
-	struct timeval ts;
+	ktime_t ts;
 	struct gb_loopback_stats latency;
 	struct gb_loopback_stats throughput;
 	struct gb_loopback_stats requests_per_second;
@@ -262,7 +255,6 @@ static void gb_loopback_check_attr(struct gb_loopback *gb)
 			 gb->iteration_max, kfifo_depth);
 	}
 	kfifo_reset_out(&gb->kfifo_lat);
-	kfifo_reset_out(&gb->kfifo_ts);
 
 	switch (gb->type) {
 	case GB_LOOPBACK_TYPE_PING:
@@ -377,21 +369,9 @@ static u64 __gb_loopback_calc_latency(u64 t1, u64 t2)
 		return NSEC_PER_DAY - t2 + t1;
 }
 
-static u64 gb_loopback_calc_latency(struct timeval *ts, struct timeval *te)
-{
-	u64 t1, t2;
-
-	t1 = timeval_to_ns(ts);
-	t2 = timeval_to_ns(te);
-
-	return __gb_loopback_calc_latency(t1, t2);
-}
-
-static void gb_loopback_push_latency_ts(struct gb_loopback *gb,
-					struct timeval *ts, struct timeval *te)
+static u64 gb_loopback_calc_latency(ktime_t ts, ktime_t te)
 {
-	kfifo_in(&gb->kfifo_ts, (unsigned char *)ts, sizeof(*ts));
-	kfifo_in(&gb->kfifo_ts, (unsigned char *)te, sizeof(*te));
+	return __gb_loopback_calc_latency(ktime_to_ns(ts), ktime_to_ns(te));
 }
 
 static int gb_loopback_operation_sync(struct gb_loopback *gb, int type,
@@ -399,10 +379,10 @@ static int gb_loopback_operation_sync(struct gb_loopback *gb, int type,
 				      void *response, int response_size)
 {
 	struct gb_operation *operation;
-	struct timeval ts, te;
+	ktime_t ts, te;
 	int ret;
 
-	do_gettimeofday(&ts);
+	ts = ktime_get();
 	operation = gb_operation_create(gb->connection, type, request_size,
 					response_size, GFP_KERNEL);
 	if (!operation)
@@ -430,11 +410,10 @@ static int gb_loopback_operation_sync(struct gb_loopback *gb, int type,
 		}
 	}
 
-	do_gettimeofday(&te);
+	te = ktime_get();
 
 	/* Calculate the total time the message took */
-	gb_loopback_push_latency_ts(gb, &ts, &te);
-	gb->elapsed_nsecs = gb_loopback_calc_latency(&ts, &te);
+	gb->elapsed_nsecs = gb_loopback_calc_latency(ts, te);
 
 out_put_operation:
 	gb_operation_put(operation);
@@ -442,56 +421,6 @@ out_put_operation:
 	return ret;
 }
 
-static void __gb_loopback_async_operation_destroy(struct kref *kref)
-{
-	struct gb_loopback_async_operation *op_async;
-
-	op_async = container_of(kref, struct gb_loopback_async_operation, kref);
-
-	list_del(&op_async->entry);
-	if (op_async->operation)
-		gb_operation_put(op_async->operation);
-	atomic_dec(&op_async->gb->outstanding_operations);
-	wake_up(&op_async->gb->wq_completion);
-	kfree(op_async);
-}
-
-static void gb_loopback_async_operation_get(struct gb_loopback_async_operation
-					    *op_async)
-{
-	kref_get(&op_async->kref);
-}
-
-static void gb_loopback_async_operation_put(struct gb_loopback_async_operation
-					    *op_async)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&gb_dev.lock, flags);
-	kref_put(&op_async->kref, __gb_loopback_async_operation_destroy);
-	spin_unlock_irqrestore(&gb_dev.lock, flags);
-}
-
-static struct gb_loopback_async_operation *
-	gb_loopback_operation_find(u16 id)
-{
-	struct gb_loopback_async_operation *op_async;
-	bool found = false;
-	unsigned long flags;
-
-	spin_lock_irqsave(&gb_dev.lock, flags);
-	list_for_each_entry(op_async, &gb_dev.list_op_async, entry) {
-		if (op_async->operation->id == id) {
-			gb_loopback_async_operation_get(op_async);
-			found = true;
-			break;
-		}
-	}
-	spin_unlock_irqrestore(&gb_dev.lock, flags);
-
-	return found ? op_async : NULL;
-}
-
 static void gb_loopback_async_wait_all(struct gb_loopback *gb)
 {
 	wait_event(gb->wq_completion,
@@ -502,87 +431,42 @@ static void gb_loopback_async_operation_callback(struct gb_operation *operation)
 {
 	struct gb_loopback_async_operation *op_async;
 	struct gb_loopback *gb;
-	struct timeval te;
-	bool err = false;
-
-	do_gettimeofday(&te);
-	op_async = gb_loopback_operation_find(operation->id);
-	if (!op_async)
-		return;
+	ktime_t te;
+	int result;
 
+	te = ktime_get();
+	result = gb_operation_result(operation);
+	op_async = gb_operation_get_data(operation);
 	gb = op_async->gb;
+
 	mutex_lock(&gb->mutex);
 
-	if (!op_async->pending || gb_operation_result(operation)) {
-		err = true;
+	if (!result && op_async->completion)
+		result = op_async->completion(op_async);
+
+	if (!result) {
+		gb->elapsed_nsecs = gb_loopback_calc_latency(op_async->ts, te);
 	} else {
-		if (op_async->completion)
-			if (op_async->completion(op_async))
-				err = true;
+		gb->error++;
+		if (result == -ETIMEDOUT)
+			gb->requests_timedout++;
 	}
 
-	if (!err) {
-		gb_loopback_push_latency_ts(gb, &op_async->ts, &te);
-		gb->elapsed_nsecs = gb_loopback_calc_latency(&op_async->ts,
-							     &te);
-	}
+	gb->iteration_count++;
+	gb_loopback_calculate_stats(gb, result);
 
-	if (op_async->pending) {
-		if (err)
-			gb->error++;
-		gb->iteration_count++;
-		op_async->pending = false;
-		del_timer_sync(&op_async->timer);
-		gb_loopback_async_operation_put(op_async);
-		gb_loopback_calculate_stats(gb, err);
-	}
 	mutex_unlock(&gb->mutex);
 
 	dev_dbg(&gb->connection->bundle->dev, "complete operation %d\n",
 		operation->id);
 
-	gb_loopback_async_operation_put(op_async);
-}
-
-static void gb_loopback_async_operation_work(struct work_struct *work)
-{
-	struct gb_loopback *gb;
-	struct gb_operation *operation;
-	struct gb_loopback_async_operation *op_async;
-
-	op_async = container_of(work, struct gb_loopback_async_operation, work);
-	gb = op_async->gb;
-	operation = op_async->operation;
-
-	mutex_lock(&gb->mutex);
-	if (op_async->pending) {
-		gb->requests_timedout++;
-		gb->error++;
-		gb->iteration_count++;
-		op_async->pending = false;
-		gb_loopback_async_operation_put(op_async);
-		gb_loopback_calculate_stats(gb, true);
-	}
-	mutex_unlock(&gb->mutex);
-
-	dev_dbg(&gb->connection->bundle->dev, "timeout operation %d\n",
-		operation->id);
-
-	gb_operation_cancel(operation, -ETIMEDOUT);
-	gb_loopback_async_operation_put(op_async);
-}
-
-static void gb_loopback_async_operation_timeout(unsigned long data)
-{
-	struct gb_loopback_async_operation *op_async;
-	u16 id = data;
+	/* Wake up waiters */
+	atomic_dec(&op_async->gb->outstanding_operations);
+	wake_up(&gb->wq_completion);
 
-	op_async = gb_loopback_operation_find(id);
-	if (!op_async) {
-		pr_err("operation %d not found - time out ?\n", id);
-		return;
-	}
-	schedule_work(&op_async->work);
+	/* Release resources */
+	gb_operation_put(operation);
+	kfree(op_async);
 }
 
 static int gb_loopback_async_operation(struct gb_loopback *gb, int type,
@@ -593,15 +477,11 @@ static int gb_loopback_async_operation(struct gb_loopback *gb, int type,
 	struct gb_loopback_async_operation *op_async;
 	struct gb_operation *operation;
 	int ret;
-	unsigned long flags;
 
 	op_async = kzalloc(sizeof(*op_async), GFP_KERNEL);
 	if (!op_async)
 		return -ENOMEM;
 
-	INIT_WORK(&op_async->work, gb_loopback_async_operation_work);
-	kref_init(&op_async->kref);
-
 	operation = gb_operation_create(gb->connection, type, request_size,
 					response_size, GFP_KERNEL);
 	if (!operation) {
@@ -612,35 +492,24 @@ static int gb_loopback_async_operation(struct gb_loopback *gb, int type,
 	if (request_size)
 		memcpy(operation->request->payload, request, request_size);
 
+	gb_operation_set_data(operation, op_async);
+
 	op_async->gb = gb;
 	op_async->operation = operation;
 	op_async->completion = completion;
 
-	spin_lock_irqsave(&gb_dev.lock, flags);
-	list_add_tail(&op_async->entry, &gb_dev.list_op_async);
-	spin_unlock_irqrestore(&gb_dev.lock, flags);
+	op_async->ts = ktime_get();
 
-	do_gettimeofday(&op_async->ts);
-	op_async->pending = true;
 	atomic_inc(&gb->outstanding_operations);
-	mutex_lock(&gb->mutex);
 	ret = gb_operation_request_send(operation,
 					gb_loopback_async_operation_callback,
-					0,
+					jiffies_to_msecs(gb->jiffy_timeout),
 					GFP_KERNEL);
-	if (ret)
-		goto error;
-
-	setup_timer(&op_async->timer, gb_loopback_async_operation_timeout,
-			(unsigned long)operation->id);
-	op_async->timer.expires = jiffies + gb->jiffy_timeout;
-	add_timer(&op_async->timer);
-
-	goto done;
-error:
-	gb_loopback_async_operation_put(op_async);
-done:
-	mutex_unlock(&gb->mutex);
+	if (ret) {
+		atomic_dec(&gb->outstanding_operations);
+		gb_operation_put(operation);
+		kfree(op_async);
+	}
 	return ret;
 }
 
@@ -854,7 +723,7 @@ static void gb_loopback_reset_stats(struct gb_loopback *gb)
 	/* Should be initialized at least once per transaction set */
 	gb->apbridge_latency_ts = 0;
 	gb->gbphy_latency_ts = 0;
-	memset(&gb->ts, 0, sizeof(struct timeval));
+	gb->ts = ktime_set(0, 0);
 }
 
 static void gb_loopback_update_stats(struct gb_loopback_stats *stats, u32 val)
@@ -937,15 +806,15 @@ static void gb_loopback_calculate_stats(struct gb_loopback *gb, bool error)
 {
 	u64 nlat;
 	u32 lat;
-	struct timeval te;
+	ktime_t te;
 
 	if (!error) {
 		gb->requests_completed++;
 		gb_loopback_calculate_latency_stats(gb);
 	}
 
-	do_gettimeofday(&te);
-	nlat = gb_loopback_calc_latency(&gb->ts, &te);
+	te = ktime_get();
+	nlat = gb_loopback_calc_latency(gb->ts, te);
 	if (nlat >= NSEC_PER_SEC || gb->iteration_count == gb->iteration_max) {
 		lat = gb_loopback_nsec_to_usec_latency(nlat);
 
@@ -1029,9 +898,8 @@ static int gb_loopback_fn(void *data)
 		size = gb->size;
 		us_wait = gb->us_wait;
 		type = gb->type;
-		if (gb->ts.tv_usec == 0 && gb->ts.tv_sec == 0)
-			do_gettimeofday(&gb->ts);
-		mutex_unlock(&gb->mutex);
+		if (ktime_to_ns(gb->ts) == 0)
+			gb->ts = ktime_get();
 
 		/* Else operations to perform */
 		if (gb->async) {
@@ -1042,8 +910,10 @@ static int gb_loopback_fn(void *data)
 			else if (type == GB_LOOPBACK_TYPE_SINK)
 				error = gb_loopback_async_sink(gb, size);
 
-			if (error)
+			if (error) {
 				gb->error++;
+				gb->iteration_count++;
+			}
 		} else {
 			/* We are effectively single threaded here */
 			if (type == GB_LOOPBACK_TYPE_PING)
@@ -1059,6 +929,7 @@ static int gb_loopback_fn(void *data)
 			gb_loopback_calculate_stats(gb, !!error);
 		}
 		gb->send_count++;
+		mutex_unlock(&gb->mutex);
 
 		if (us_wait) {
 			if (us_wait < 20000)
@@ -1241,18 +1112,12 @@ static int gb_loopback_probe(struct gb_bundle *bundle,
 		retval = -ENOMEM;
 		goto out_conn;
 	}
-	if (kfifo_alloc(&gb->kfifo_ts, kfifo_depth * sizeof(struct timeval) * 2,
-			  GFP_KERNEL)) {
-		retval = -ENOMEM;
-		goto out_kfifo0;
-	}
-
 	/* Fork worker thread */
 	mutex_init(&gb->mutex);
 	gb->task = kthread_run(gb_loopback_fn, gb, "gb_loopback");
 	if (IS_ERR(gb->task)) {
 		retval = PTR_ERR(gb->task);
-		goto out_kfifo1;
+		goto out_kfifo;
 	}
 
 	spin_lock_irqsave(&gb_dev.lock, flags);
@@ -1266,9 +1131,7 @@ static int gb_loopback_probe(struct gb_bundle *bundle,
 
 	return 0;
 
-out_kfifo1:
-	kfifo_free(&gb->kfifo_ts);
-out_kfifo0:
+out_kfifo:
 	kfifo_free(&gb->kfifo_lat);
 out_conn:
 	device_unregister(dev);
@@ -1302,7 +1165,6 @@ static void gb_loopback_disconnect(struct gb_bundle *bundle)
 		kthread_stop(gb->task);
 
 	kfifo_free(&gb->kfifo_lat);
-	kfifo_free(&gb->kfifo_ts);
 	gb_connection_latency_tag_disable(gb->connection);
 	debugfs_remove(gb->file);
 
diff --git a/drivers/staging/greybus/manifest.c b/drivers/staging/greybus/manifest.c
index 7b903770a684..08db49264f2b 100644
--- a/drivers/staging/greybus/manifest.c
+++ b/drivers/staging/greybus/manifest.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus manifest parsing
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include "greybus.h"
diff --git a/drivers/staging/greybus/manifest.h b/drivers/staging/greybus/manifest.h
index d96428407cd7..f3c95a255631 100644
--- a/drivers/staging/greybus/manifest.h
+++ b/drivers/staging/greybus/manifest.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus manifest parsing
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __MANIFEST_H
diff --git a/drivers/staging/greybus/module.c b/drivers/staging/greybus/module.c
index 660b4674a76f..b785382192de 100644
--- a/drivers/staging/greybus/module.c
+++ b/drivers/staging/greybus/module.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Module code
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include "greybus.h"
diff --git a/drivers/staging/greybus/module.h b/drivers/staging/greybus/module.h
index 88a97ce04243..b1ebcc6636db 100644
--- a/drivers/staging/greybus/module.h
+++ b/drivers/staging/greybus/module.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Module code
  *
  * Copyright 2016 Google Inc.
  * Copyright 2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __MODULE_H
diff --git a/drivers/staging/greybus/operation.c b/drivers/staging/greybus/operation.c
index 3023012808d9..609332b3e15b 100644
--- a/drivers/staging/greybus/operation.c
+++ b/drivers/staging/greybus/operation.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/operation.h b/drivers/staging/greybus/operation.h
index 7529f01b2529..40b7b02fff88 100644
--- a/drivers/staging/greybus/operation.h
+++ b/drivers/staging/greybus/operation.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus operations
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __OPERATION_H
@@ -105,6 +104,8 @@ struct gb_operation {
 
 	int			active;
 	struct list_head	links;		/* connection->operations */
+
+	void			*private;
 };
 
 static inline bool
@@ -206,6 +207,17 @@ static inline int gb_operation_unidirectional(struct gb_connection *connection,
 			request, request_size, GB_OPERATION_TIMEOUT_DEFAULT);
 }
 
+static inline void *gb_operation_get_data(struct gb_operation *operation)
+{
+	return operation->private;
+}
+
+static inline void gb_operation_set_data(struct gb_operation *operation,
+					 void *data)
+{
+	operation->private = data;
+}
+
 int gb_operation_init(void);
 void gb_operation_exit(void);
 
diff --git a/drivers/staging/greybus/power_supply.c b/drivers/staging/greybus/power_supply.c
index 20cac20518d7..0529e5628c24 100644
--- a/drivers/staging/greybus/power_supply.c
+++ b/drivers/staging/greybus/power_supply.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Power Supply driver for a Greybus module.
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/pwm.c b/drivers/staging/greybus/pwm.c
index f0404bc37123..4a6d394b6c44 100644
--- a/drivers/staging/greybus/pwm.c
+++ b/drivers/staging/greybus/pwm.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PWM Greybus driver.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/raw.c b/drivers/staging/greybus/raw.c
index 729d25811568..838acbe84ca0 100644
--- a/drivers/staging/greybus/raw.c
+++ b/drivers/staging/greybus/raw.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus driver for the Raw protocol
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/staging/greybus/sdio.c b/drivers/staging/greybus/sdio.c
index 101ca5097fc9..38e85033fc4b 100644
--- a/drivers/staging/greybus/sdio.c
+++ b/drivers/staging/greybus/sdio.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SD/MMC Greybus driver.
  *
  * Copyright 2014-2015 Google Inc.
  * Copyright 2014-2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/greybus/spi.c b/drivers/staging/greybus/spi.c
index c893552b5c0b..47d896992b35 100644
--- a/drivers/staging/greybus/spi.c
+++ b/drivers/staging/greybus/spi.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SPI bridge PHY driver.
  *
  * Copyright 2014-2016 Google Inc.
  * Copyright 2014-2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/module.h>
diff --git a/drivers/staging/greybus/spilib.c b/drivers/staging/greybus/spilib.c
index e97b19148497..2e07c6b41334 100644
--- a/drivers/staging/greybus/spilib.c
+++ b/drivers/staging/greybus/spilib.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus SPI library
  *
  * Copyright 2014-2016 Google Inc.
  * Copyright 2014-2016 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/bitops.h>
@@ -544,12 +543,15 @@ int gb_spilib_master_init(struct gb_connection *connection, struct device *dev,
 
 	return 0;
 
-exit_spi_unregister:
-	spi_unregister_master(master);
 exit_spi_put:
 	spi_master_put(master);
 
 	return ret;
+
+exit_spi_unregister:
+	spi_unregister_master(master);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(gb_spilib_master_init);
 
@@ -558,7 +560,6 @@ void gb_spilib_master_exit(struct gb_connection *connection)
 	struct spi_master *master = gb_connection_get_data(connection);
 
 	spi_unregister_master(master);
-	spi_master_put(master);
 }
 EXPORT_SYMBOL_GPL(gb_spilib_master_exit);
 
diff --git a/drivers/staging/greybus/spilib.h b/drivers/staging/greybus/spilib.h
index cb6092578a92..043d4d32c3ee 100644
--- a/drivers/staging/greybus/spilib.h
+++ b/drivers/staging/greybus/spilib.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus SPI library header
  *
diff --git a/drivers/staging/greybus/svc.c b/drivers/staging/greybus/svc.c
index 516f827e5ed9..a874fed761a1 100644
--- a/drivers/staging/greybus/svc.c
+++ b/drivers/staging/greybus/svc.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SVC Greybus driver.
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/debugfs.h>
diff --git a/drivers/staging/greybus/svc.h b/drivers/staging/greybus/svc.h
index 226c2a396fc8..ad01783bac9c 100644
--- a/drivers/staging/greybus/svc.h
+++ b/drivers/staging/greybus/svc.h
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus SVC code
  *
  * Copyright 2015 Google Inc.
  * Copyright 2015 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #ifndef __SVC_H
diff --git a/drivers/staging/greybus/svc_watchdog.c b/drivers/staging/greybus/svc_watchdog.c
index 779fbea5d4ba..7868ad8211c5 100644
--- a/drivers/staging/greybus/svc_watchdog.c
+++ b/drivers/staging/greybus/svc_watchdog.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SVC Greybus "watchdog" driver.
  *
  * Copyright 2016 Google Inc.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/staging/greybus/tools/Makefile b/drivers/staging/greybus/tools/Makefile
index 852b12b71149..ad0ae8053b79 100644
--- a/drivers/staging/greybus/tools/Makefile
+++ b/drivers/staging/greybus/tools/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifeq ($(strip $(V)), 1)
   Q =
 else
diff --git a/drivers/staging/greybus/tools/lbtest b/drivers/staging/greybus/tools/lbtest
index d7353f1a2a6f..47c481239e98 100755
--- a/drivers/staging/greybus/tools/lbtest
+++ b/drivers/staging/greybus/tools/lbtest
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: BSD-3-Clause
 
 # Copyright (c) 2015 Google, Inc.
 # Copyright (c) 2015 Linaro, Ltd.
diff --git a/drivers/staging/greybus/tools/loopback_test.c b/drivers/staging/greybus/tools/loopback_test.c
index fbe589fca840..c51610ce24af 100644
--- a/drivers/staging/greybus/tools/loopback_test.c
+++ b/drivers/staging/greybus/tools/loopback_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: BSD-3-Clause
 /*
  * Loopback test application
  *
diff --git a/drivers/staging/greybus/uart.c b/drivers/staging/greybus/uart.c
index c6d01b800d3c..8a006323c3c1 100644
--- a/drivers/staging/greybus/uart.c
+++ b/drivers/staging/greybus/uart.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UART driver for the Greybus "generic" UART module.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
  *
- * Released under the GPLv2 only.
- *
  * Heavily based on drivers/usb/class/cdc-acm.c and
  * drivers/usb/serial/usb-serial.c.
  */
diff --git a/drivers/staging/greybus/usb.c b/drivers/staging/greybus/usb.c
index f93a76d02de6..1c246c73a085 100644
--- a/drivers/staging/greybus/usb.c
+++ b/drivers/staging/greybus/usb.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB host driver for the Greybus "generic" USB module.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
- *
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/staging/greybus/vibrator.c b/drivers/staging/greybus/vibrator.c
index 5cd8a50d41ad..3e5dedeacd5c 100644
--- a/drivers/staging/greybus/vibrator.c
+++ b/drivers/staging/greybus/vibrator.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Greybus Vibrator protocol driver.
  *
  * Copyright 2014 Google Inc.
  * Copyright 2014 Linaro Ltd.
- *
- * Released under the GPLv2 only.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
index bcbdc7340b55..fa8b27e091a2 100644
--- a/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
+++ b/drivers/staging/gs_fpgaboot/gs_fpgaboot.c
@@ -106,7 +106,7 @@ static int readmagic_bitstream(u8 *bitdata, int *offset)
 	read_bitstream(bitdata, buf, offset, 13);
 	r = memcmp(buf, bits_magic, 13);
 	if (r) {
-		pr_err("error: corrupted header");
+		pr_err("error: corrupted header\n");
 		return -EINVAL;
 	}
 	pr_info("bitstream file magic number Ok\n");
diff --git a/drivers/staging/iio/Documentation/device.txt b/drivers/staging/iio/Documentation/device.txt
index 54ef0deed28f..ec42544a46aa 100644
--- a/drivers/staging/iio/Documentation/device.txt
+++ b/drivers/staging/iio/Documentation/device.txt
@@ -26,9 +26,6 @@ Then fill in the following:
 	pointer to a structure with elements that tend to be fixed for
 	large sets of different parts supported by a given driver.
 	This contains:
-	* info->driver_module:
-		Set to THIS_MODULE. Used to ensure correct ownership
-		of various resources allocate by the core.
 	* info->event_attrs:
 		Attributes used to enable / disable hardware events.
 	* info->attrs:
diff --git a/drivers/staging/iio/Documentation/trigger.txt b/drivers/staging/iio/Documentation/trigger.txt
index 7c0e505e4f04..299a1add98bf 100644
--- a/drivers/staging/iio/Documentation/trigger.txt
+++ b/drivers/staging/iio/Documentation/trigger.txt
@@ -10,10 +10,6 @@ struct iio_trig *trig = iio_trigger_alloc("<trigger format string>", ...);
 allocates a trigger structure.  The key elements to then fill in within
 a driver are:
 
-trig->owner
-	Typically set to THIS_MODULE. Used to ensure correct
-	ownership of core allocated resources.
-
 trig->set_trigger_state:
 	Function that enables / disables the underlying source of the trigger.
 
diff --git a/drivers/staging/iio/Makefile b/drivers/staging/iio/Makefile
index 0cfd05d5bf49..455bffc29649 100644
--- a/drivers/staging/iio/Makefile
+++ b/drivers/staging/iio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the industrial I/O core.
 #
diff --git a/drivers/staging/iio/accel/adis16201.c b/drivers/staging/iio/accel/adis16201.c
index fbc240663621..2ebd27536216 100644
--- a/drivers/staging/iio/accel/adis16201.c
+++ b/drivers/staging/iio/accel/adis16201.c
@@ -284,7 +284,6 @@ static const struct iio_info adis16201_info = {
 	.read_raw = adis16201_read_raw,
 	.write_raw = adis16201_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const adis16201_status_error_msgs[] = {
diff --git a/drivers/staging/iio/accel/adis16203.c b/drivers/staging/iio/accel/adis16203.c
index 4e3fa7592d3f..b3e4571340ab 100644
--- a/drivers/staging/iio/accel/adis16203.c
+++ b/drivers/staging/iio/accel/adis16203.c
@@ -232,7 +232,6 @@ static const struct iio_info adis16203_info = {
 	.read_raw = adis16203_read_raw,
 	.write_raw = adis16203_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const adis16203_status_error_msgs[] = {
diff --git a/drivers/staging/iio/accel/adis16209.c b/drivers/staging/iio/accel/adis16209.c
index 8485c024e3f5..7fcef9a2590a 100644
--- a/drivers/staging/iio/accel/adis16209.c
+++ b/drivers/staging/iio/accel/adis16209.c
@@ -285,7 +285,6 @@ static const struct iio_info adis16209_info = {
 	.read_raw = adis16209_read_raw,
 	.write_raw = adis16209_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const adis16209_status_error_msgs[] = {
diff --git a/drivers/staging/iio/accel/adis16240.c b/drivers/staging/iio/accel/adis16240.c
index 109cd94b5ac3..fff6d99089cc 100644
--- a/drivers/staging/iio/accel/adis16240.c
+++ b/drivers/staging/iio/accel/adis16240.c
@@ -361,7 +361,6 @@ static const struct iio_info adis16240_info = {
 	.read_raw = adis16240_read_raw,
 	.write_raw = adis16240_write_raw,
 	.update_scan_mode = adis_update_scan_mode,
-	.driver_module = THIS_MODULE,
 };
 
 static const char * const adis16240_status_error_msgs[] = {
diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile
index bf18bdd7c99d..ebe83c1ad362 100644
--- a/drivers/staging/iio/adc/Makefile
+++ b/drivers/staging/iio/adc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for industrial I/O ADC drivers
 #
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index d11c6de9c777..cadfb96734ed 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -162,6 +162,7 @@ struct ad7192_state {
 	u32				scale_avail[8][2];
 	u8				gpocon;
 	u8				devid;
+	struct mutex			lock;	/* protect sensor state */
 
 	struct ad_sigma_delta		sd;
 };
@@ -223,11 +224,9 @@ static int ad7192_setup(struct ad7192_state *st,
 	struct iio_dev *indio_dev = spi_get_drvdata(st->sd.spi);
 	unsigned long long scale_uv;
 	int i, ret, id;
-	u8 ones[6];
 
 	/* reset the serial interface */
-	memset(&ones, 0xFF, 6);
-	ret = spi_write(st->sd.spi, &ones, 6);
+	ret = ad_sd_reset(&st->sd, 48);
 	if (ret < 0)
 		goto out;
 	usleep_range(500, 1000); /* Wait for at least 500us */
@@ -463,10 +462,10 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
-			mutex_lock(&indio_dev->mlock);
+			mutex_lock(&st->lock);
 			*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
 			*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
-			mutex_unlock(&indio_dev->mlock);
+			mutex_unlock(&st->lock);
 			return IIO_VAL_INT_PLUS_NANO;
 		case IIO_TEMP:
 			*val = 0;
@@ -510,6 +509,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 	case IIO_CHAN_INFO_SCALE:
 		ret = -EINVAL;
+		mutex_lock(&st->lock);
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
 				ret = 0;
@@ -523,6 +523,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 				ad7192_calibrate_all(st);
 				break;
 			}
+		mutex_unlock(&st->lock);
 		break;
 	case IIO_CHAN_INFO_SAMP_FREQ:
 		if (!val) {
@@ -569,7 +570,6 @@ static const struct iio_info ad7192_info = {
 	.write_raw_get_fmt = ad7192_write_raw_get_fmt,
 	.attrs = &ad7192_attribute_group,
 	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad7195_info = {
@@ -578,7 +578,6 @@ static const struct iio_info ad7195_info = {
 	.write_raw_get_fmt = ad7192_write_raw_get_fmt,
 	.attrs = &ad7195_attribute_group,
 	.validate_trigger = ad_sd_validate_trigger,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec ad7192_channels[] = {
@@ -634,6 +633,8 @@ static int ad7192_probe(struct spi_device *spi)
 
 	st = iio_priv(indio_dev);
 
+	mutex_init(&st->lock);
+
 	st->avdd = devm_regulator_get(&spi->dev, "avdd");
 	if (IS_ERR(st->avdd))
 		return PTR_ERR(st->avdd);
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index f85dde9805e0..b736275c10f5 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -828,7 +828,6 @@ static const struct iio_info ad7280_info = {
 	.read_raw = ad7280_read_raw,
 	.event_attrs = &ad7280_event_attrs_group,
 	.attrs = &ad7280_attrs_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct ad7280_platform_data ad7793_default_pdata = {
diff --git a/drivers/staging/iio/adc/ad7606.c b/drivers/staging/iio/adc/ad7606.c
index 18f5f139117e..25b9fcd5e3a4 100644
--- a/drivers/staging/iio/adc/ad7606.c
+++ b/drivers/staging/iio/adc/ad7606.c
@@ -373,26 +373,22 @@ static irqreturn_t ad7606_interrupt(int irq, void *dev_id)
 };
 
 static const struct iio_info ad7606_info_no_os_or_range = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7606_read_raw,
 };
 
 static const struct iio_info ad7606_info_os_and_range = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7606_read_raw,
 	.write_raw = &ad7606_write_raw,
 	.attrs = &ad7606_attribute_group_os_and_range,
 };
 
 static const struct iio_info ad7606_info_os = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7606_read_raw,
 	.write_raw = &ad7606_write_raw,
 	.attrs = &ad7606_attribute_group_os,
 };
 
 static const struct iio_info ad7606_info_range = {
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7606_read_raw,
 	.write_raw = &ad7606_write_raw,
 	.attrs = &ad7606_attribute_group_range,
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index dec3ba6eba8a..a7797af579b9 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -155,7 +155,6 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
 
 static const struct iio_info ad7780_info = {
 	.read_raw = ad7780_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad7780_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index 17d280581e24..bfe180a475ee 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -335,7 +335,6 @@ static const struct attribute_group ad7816_event_attribute_group = {
 static const struct iio_info ad7816_info = {
 	.attrs = &ad7816_attribute_group,
 	.event_attrs = &ad7816_event_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 /*
diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index b2bce26499f5..2d33632c00e8 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -2087,13 +2087,11 @@ EXPORT_SYMBOL_GPL(adt7316_pm_ops);
 static const struct iio_info adt7316_info = {
 	.attrs = &adt7316_attribute_group,
 	.event_attrs = &adt7316_event_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info adt7516_info = {
 	.attrs = &adt7516_attribute_group,
 	.event_attrs = &adt7516_event_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 /*
diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index a6f249e9c1e1..2fe916c48848 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -569,7 +569,6 @@ static const struct attribute_group ad7150_event_attribute_group = {
 
 static const struct iio_info ad7150_info = {
 	.event_attrs = &ad7150_event_attribute_group,
-	.driver_module = THIS_MODULE,
 	.read_raw = &ad7150_read_raw,
 	.read_event_config = &ad7150_read_event_config,
 	.write_event_config = &ad7150_write_event_config,
diff --git a/drivers/staging/iio/cdc/ad7152.c b/drivers/staging/iio/cdc/ad7152.c
index ff10d1f0a7e4..61377ca444de 100644
--- a/drivers/staging/iio/cdc/ad7152.c
+++ b/drivers/staging/iio/cdc/ad7152.c
@@ -441,7 +441,6 @@ static const struct iio_info ad7152_info = {
 	.read_raw = ad7152_read_raw,
 	.write_raw = ad7152_write_raw,
 	.write_raw_get_fmt = ad7152_write_raw_get_fmt,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec ad7152_channels[] = {
diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c
index cdcb4fccf3fe..a124853a05f0 100644
--- a/drivers/staging/iio/cdc/ad7746.c
+++ b/drivers/staging/iio/cdc/ad7746.c
@@ -667,7 +667,6 @@ static const struct iio_info ad7746_info = {
 	.attrs = &ad7746_attribute_group,
 	.read_raw = ad7746_read_raw,
 	.write_raw = ad7746_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 /*
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 6da46ede7ee0..c73eff1f8d73 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -290,7 +290,6 @@ static const struct attribute_group ad9832_attribute_group = {
 
 static const struct iio_info ad9832_info = {
 	.attrs = &ad9832_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad9832_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index 995acdd7c942..4c6d4043903e 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -381,12 +381,10 @@ static const struct attribute_group ad9833_attribute_group = {
 
 static const struct iio_info ad9834_info = {
 	.attrs = &ad9834_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad9833_info = {
 	.attrs = &ad9833_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad9834_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c
index 967524583d8a..4e7630caf7d3 100644
--- a/drivers/staging/iio/gyro/adis16060_core.c
+++ b/drivers/staging/iio/gyro/adis16060_core.c
@@ -103,7 +103,6 @@ static int adis16060_read_raw(struct iio_dev *indio_dev,
 
 static const struct iio_info adis16060_info = {
 	.read_raw = adis16060_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec adis16060_channels[] = {
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 3d539eeb0e26..2b28fb9c0048 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -575,7 +575,6 @@ out:
 static const struct iio_info ad5933_info = {
 	.read_raw = ad5933_read_raw,
 	.attrs = &ad5933_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad5933_ring_preenable(struct iio_dev *indio_dev)
diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c
index 786e93f16ce9..42ed9c015aaf 100644
--- a/drivers/staging/iio/light/tsl2x7x.c
+++ b/drivers/staging/iio/light/tsl2x7x.c
@@ -15,112 +15,112 @@
  * more details.
  */
 
-#include <linux/kernel.h>
-#include <linux/i2c.h>
-#include <linux/errno.h>
 #include <linux/delay.h>
-#include <linux/mutex.h>
+#include <linux/errno.h>
+#include <linux/i2c.h>
 #include <linux/interrupt.h>
-#include <linux/slab.h>
+#include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
 #include <linux/iio/events.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
 #include "tsl2x7x.h"
 
 /* Cal defs*/
-#define PROX_STAT_CAL        0
-#define PROX_STAT_SAMP       1
-#define MAX_SAMPLES_CAL      200
+#define PROX_STAT_CAL			0
+#define PROX_STAT_SAMP			1
+#define MAX_SAMPLES_CAL			200
 
 /* TSL2X7X Device ID */
-#define TRITON_ID    0x00
-#define SWORDFISH_ID 0x30
-#define HALIBUT_ID   0x20
+#define TRITON_ID			0x00
+#define SWORDFISH_ID			0x30
+#define HALIBUT_ID			0x20
 
 /* Lux calculation constants */
-#define TSL2X7X_LUX_CALC_OVER_FLOW     65535
+#define TSL2X7X_LUX_CALC_OVER_FLOW	65535
 
 /* TAOS Register definitions - note:
  * depending on device, some of these register are not used and the
  * register address is benign.
  */
 /* 2X7X register offsets */
-#define TSL2X7X_MAX_CONFIG_REG         16
+#define TSL2X7X_MAX_CONFIG_REG		16
 
 /* Device Registers and Masks */
-#define TSL2X7X_CNTRL                  0x00
-#define TSL2X7X_ALS_TIME               0X01
-#define TSL2X7X_PRX_TIME               0x02
-#define TSL2X7X_WAIT_TIME              0x03
-#define TSL2X7X_ALS_MINTHRESHLO        0X04
-#define TSL2X7X_ALS_MINTHRESHHI        0X05
-#define TSL2X7X_ALS_MAXTHRESHLO        0X06
-#define TSL2X7X_ALS_MAXTHRESHHI        0X07
-#define TSL2X7X_PRX_MINTHRESHLO        0X08
-#define TSL2X7X_PRX_MINTHRESHHI        0X09
-#define TSL2X7X_PRX_MAXTHRESHLO        0X0A
-#define TSL2X7X_PRX_MAXTHRESHHI        0X0B
-#define TSL2X7X_PERSISTENCE            0x0C
-#define TSL2X7X_PRX_CONFIG             0x0D
-#define TSL2X7X_PRX_COUNT              0x0E
-#define TSL2X7X_GAIN                   0x0F
-#define TSL2X7X_NOTUSED                0x10
-#define TSL2X7X_REVID                  0x11
-#define TSL2X7X_CHIPID                 0x12
-#define TSL2X7X_STATUS                 0x13
-#define TSL2X7X_ALS_CHAN0LO            0x14
-#define TSL2X7X_ALS_CHAN0HI            0x15
-#define TSL2X7X_ALS_CHAN1LO            0x16
-#define TSL2X7X_ALS_CHAN1HI            0x17
-#define TSL2X7X_PRX_LO                 0x18
-#define TSL2X7X_PRX_HI                 0x19
+#define TSL2X7X_CNTRL			0x00
+#define TSL2X7X_ALS_TIME		0X01
+#define TSL2X7X_PRX_TIME		0x02
+#define TSL2X7X_WAIT_TIME		0x03
+#define TSL2X7X_ALS_MINTHRESHLO		0X04
+#define TSL2X7X_ALS_MINTHRESHHI		0X05
+#define TSL2X7X_ALS_MAXTHRESHLO		0X06
+#define TSL2X7X_ALS_MAXTHRESHHI		0X07
+#define TSL2X7X_PRX_MINTHRESHLO		0X08
+#define TSL2X7X_PRX_MINTHRESHHI		0X09
+#define TSL2X7X_PRX_MAXTHRESHLO		0X0A
+#define TSL2X7X_PRX_MAXTHRESHHI		0X0B
+#define TSL2X7X_PERSISTENCE		0x0C
+#define TSL2X7X_PRX_CONFIG		0x0D
+#define TSL2X7X_PRX_COUNT		0x0E
+#define TSL2X7X_GAIN			0x0F
+#define TSL2X7X_NOTUSED			0x10
+#define TSL2X7X_REVID			0x11
+#define TSL2X7X_CHIPID			0x12
+#define TSL2X7X_STATUS			0x13
+#define TSL2X7X_ALS_CHAN0LO		0x14
+#define TSL2X7X_ALS_CHAN0HI		0x15
+#define TSL2X7X_ALS_CHAN1LO		0x16
+#define TSL2X7X_ALS_CHAN1HI		0x17
+#define TSL2X7X_PRX_LO			0x18
+#define TSL2X7X_PRX_HI			0x19
 
 /* tsl2X7X cmd reg masks */
-#define TSL2X7X_CMD_REG                0x80
-#define TSL2X7X_CMD_SPL_FN             0x60
+#define TSL2X7X_CMD_REG			0x80
+#define TSL2X7X_CMD_SPL_FN		0x60
 
-#define TSL2X7X_CMD_PROX_INT_CLR       0X05
-#define TSL2X7X_CMD_ALS_INT_CLR        0x06
-#define TSL2X7X_CMD_PROXALS_INT_CLR    0X07
+#define TSL2X7X_CMD_PROX_INT_CLR	0X05
+#define TSL2X7X_CMD_ALS_INT_CLR		0x06
+#define TSL2X7X_CMD_PROXALS_INT_CLR	0X07
 
 /* tsl2X7X cntrl reg masks */
-#define TSL2X7X_CNTL_ADC_ENBL          0x02
-#define TSL2X7X_CNTL_PWR_ON            0x01
+#define TSL2X7X_CNTL_ADC_ENBL		0x02
+#define TSL2X7X_CNTL_PWR_ON		0x01
 
 /* tsl2X7X status reg masks */
-#define TSL2X7X_STA_ADC_VALID          0x01
-#define TSL2X7X_STA_PRX_VALID          0x02
-#define TSL2X7X_STA_ADC_PRX_VALID      (TSL2X7X_STA_ADC_VALID |\
-					TSL2X7X_STA_PRX_VALID)
-#define TSL2X7X_STA_ALS_INTR           0x10
-#define TSL2X7X_STA_PRX_INTR           0x20
+#define TSL2X7X_STA_ADC_VALID		0x01
+#define TSL2X7X_STA_PRX_VALID		0x02
+#define TSL2X7X_STA_ADC_PRX_VALID	(TSL2X7X_STA_ADC_VALID | \
+					 TSL2X7X_STA_PRX_VALID)
+#define TSL2X7X_STA_ALS_INTR		0x10
+#define TSL2X7X_STA_PRX_INTR		0x20
 
 /* tsl2X7X cntrl reg masks */
-#define TSL2X7X_CNTL_REG_CLEAR         0x00
-#define TSL2X7X_CNTL_PROX_INT_ENBL     0X20
-#define TSL2X7X_CNTL_ALS_INT_ENBL      0X10
-#define TSL2X7X_CNTL_WAIT_TMR_ENBL     0X08
-#define TSL2X7X_CNTL_PROX_DET_ENBL     0X04
-#define TSL2X7X_CNTL_PWRON             0x01
-#define TSL2X7X_CNTL_ALSPON_ENBL       0x03
-#define TSL2X7X_CNTL_INTALSPON_ENBL    0x13
-#define TSL2X7X_CNTL_PROXPON_ENBL      0x0F
-#define TSL2X7X_CNTL_INTPROXPON_ENBL   0x2F
+#define TSL2X7X_CNTL_REG_CLEAR		0x00
+#define TSL2X7X_CNTL_PROX_INT_ENBL	0X20
+#define TSL2X7X_CNTL_ALS_INT_ENBL	0X10
+#define TSL2X7X_CNTL_WAIT_TMR_ENBL	0X08
+#define TSL2X7X_CNTL_PROX_DET_ENBL	0X04
+#define TSL2X7X_CNTL_PWRON		0x01
+#define TSL2X7X_CNTL_ALSPON_ENBL	0x03
+#define TSL2X7X_CNTL_INTALSPON_ENBL	0x13
+#define TSL2X7X_CNTL_PROXPON_ENBL	0x0F
+#define TSL2X7X_CNTL_INTPROXPON_ENBL	0x2F
 
 /*Prox diode to use */
-#define TSL2X7X_DIODE0                 0x10
-#define TSL2X7X_DIODE1                 0x20
-#define TSL2X7X_DIODE_BOTH             0x30
+#define TSL2X7X_DIODE0			0x10
+#define TSL2X7X_DIODE1			0x20
+#define TSL2X7X_DIODE_BOTH		0x30
 
 /* LED Power */
-#define TSL2X7X_mA100                  0x00
-#define TSL2X7X_mA50                   0x40
-#define TSL2X7X_mA25                   0x80
-#define TSL2X7X_mA13                   0xD0
-#define TSL2X7X_MAX_TIMER_CNT          (0xFF)
+#define TSL2X7X_100_mA			0x00
+#define TSL2X7X_50_mA			0x40
+#define TSL2X7X_25_mA			0x80
+#define TSL2X7X_13_mA			0xD0
+#define TSL2X7X_MAX_TIMER_CNT		0xFF
 
-#define TSL2X7X_MIN_ITIME 3
+#define TSL2X7X_MIN_ITIME		3
 
 /* TAOS txx2x7x Device family members */
 enum {
@@ -142,11 +142,6 @@ enum {
 	TSL2X7X_CHIP_SUSPENDED = 2
 };
 
-struct tsl2x7x_parse_result {
-	int integer;
-	int fract;
-};
-
 /* Per-device data */
 struct tsl2x7x_als_info {
 	u16 als_ch0;
@@ -174,7 +169,7 @@ struct tsl2X7X_chip {
 	struct i2c_client *client;
 	u16 prox_data;
 	struct tsl2x7x_als_info als_cur_info;
-	struct tsl2x7x_settings tsl2x7x_settings;
+	struct tsl2x7x_settings settings;
 	struct tsl2X7X_platform_data *pdata;
 	int als_time_scale;
 	int als_saturation;
@@ -192,25 +187,25 @@ struct tsl2X7X_chip {
 };
 
 /* Different devices require different coefficents */
-static const struct tsl2x7x_lux tsl2x71_lux_table[] = {
+static const struct tsl2x7x_lux tsl2x71_lux_table[TSL2X7X_DEF_LUX_TABLE_SZ] = {
 	{ 14461,   611,   1211 },
 	{ 18540,   352,    623 },
 	{     0,     0,      0 },
 };
 
-static const struct tsl2x7x_lux tmd2x71_lux_table[] = {
+static const struct tsl2x7x_lux tmd2x71_lux_table[TSL2X7X_DEF_LUX_TABLE_SZ] = {
 	{ 11635,   115,    256 },
 	{ 15536,    87,    179 },
 	{     0,     0,      0 },
 };
 
-static const struct tsl2x7x_lux tsl2x72_lux_table[] = {
+static const struct tsl2x7x_lux tsl2x72_lux_table[TSL2X7X_DEF_LUX_TABLE_SZ] = {
 	{ 14013,   466,   917 },
 	{ 18222,   310,   552 },
 	{     0,     0,     0 },
 };
 
-static const struct tsl2x7x_lux tmd2x72_lux_table[] = {
+static const struct tsl2x7x_lux tmd2x72_lux_table[TSL2X7X_DEF_LUX_TABLE_SZ] = {
 	{ 13218,   130,   262 },
 	{ 17592,   92,    169 },
 	{     0,     0,     0 },
@@ -248,14 +243,14 @@ static const struct tsl2x7x_settings tsl2x7x_default_settings = {
 	.prox_pulse_count = 8
 };
 
-static const s16 tsl2X7X_als_gainadj[] = {
+static const s16 tsl2x7x_als_gain[] = {
 	1,
 	8,
 	16,
 	120
 };
 
-static const s16 tsl2X7X_prx_gainadj[] = {
+static const s16 tsl2x7x_prx_gain[] = {
 	1,
 	2,
 	4,
@@ -353,9 +348,9 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 
 	/* clear any existing interrupt status */
 	ret = i2c_smbus_write_byte(chip->client,
-				   (TSL2X7X_CMD_REG |
+				   TSL2X7X_CMD_REG |
 				   TSL2X7X_CMD_SPL_FN |
-				   TSL2X7X_CMD_ALS_INT_CLR));
+				   TSL2X7X_CMD_ALS_INT_CLR);
 	if (ret < 0) {
 		dev_err(&chip->client->dev,
 			"i2c_write_command failed - err = %d\n", ret);
@@ -369,7 +364,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 	chip->als_cur_info.als_ch0 = ch0;
 	chip->als_cur_info.als_ch1 = ch1;
 
-	if ((ch0 >= chip->als_saturation) || (ch1 >= chip->als_saturation)) {
+	if (ch0 >= chip->als_saturation || ch1 >= chip->als_saturation) {
 		lux = TSL2X7X_LUX_CALC_OVER_FLOW;
 		goto return_max;
 	}
@@ -389,11 +384,10 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 	if (p->ratio == 0) {
 		lux = 0;
 	} else {
-		ch0lux = DIV_ROUND_UP(ch0 * p->ch0,
-			tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
-		ch1lux = DIV_ROUND_UP(ch1 * p->ch1,
-			tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
-		lux = ch0lux - ch1lux;
+		lux = DIV_ROUND_UP(ch0 * p->ch0,
+				   tsl2x7x_als_gain[chip->settings.als_gain]) -
+		      DIV_ROUND_UP(ch1 * p->ch1,
+				   tsl2x7x_als_gain[chip->settings.als_gain]);
 	}
 
 	/* note: lux is 31 bit max at this point */
@@ -419,7 +413,7 @@ static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
 	 */
 
 	lux64 = lux;
-	lux64 = lux64 * chip->tsl2x7x_settings.als_gain_trim;
+	lux64 = lux64 * chip->settings.als_gain_trim;
 	lux64 >>= 8;
 	lux = lux64;
 	lux = (lux + 500) / 1000;
@@ -472,7 +466,7 @@ static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
 	case tmd2771:
 		if (!(ret & TSL2X7X_STA_ADC_VALID))
 			goto prox_poll_err;
-	break;
+		break;
 	case tsl2572:
 	case tsl2672:
 	case tmd2672:
@@ -480,7 +474,7 @@ static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
 	case tmd2772:
 		if (!(ret & TSL2X7X_STA_PRX_VALID))
 			goto prox_poll_err;
-	break;
+		break;
 	}
 
 	for (i = 0; i < 2; i++) {
@@ -514,12 +508,10 @@ static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
 {
 	/* If Operational settings defined elsewhere.. */
 	if (chip->pdata && chip->pdata->platform_default_settings)
-		memcpy(&chip->tsl2x7x_settings,
-		       chip->pdata->platform_default_settings,
+		memcpy(&chip->settings, chip->pdata->platform_default_settings,
 		       sizeof(tsl2x7x_default_settings));
 	else
-		memcpy(&chip->tsl2x7x_settings,
-		       &tsl2x7x_default_settings,
+		memcpy(&chip->settings, &tsl2x7x_default_settings,
 		       sizeof(tsl2x7x_default_settings));
 
 	/* Load up the proper lux table. */
@@ -529,8 +521,8 @@ static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
 		       sizeof(chip->pdata->platform_lux_table));
 	else
 		memcpy(chip->tsl2x7x_device_lux,
-		(struct tsl2x7x_lux *)tsl2x7x_default_lux_table_group[chip->id],
-				MAX_DEFAULT_TABLE_BYTES);
+		       tsl2x7x_default_lux_table_group[chip->id],
+		       TSL2X7X_DEFAULT_TABLE_BYTES);
 }
 
 /**
@@ -542,9 +534,7 @@ static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
 static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int gain_trim_val;
-	int ret;
-	int lux_val;
+	int ret, lux_val;
 
 	ret = i2c_smbus_read_byte_data(chip->client,
 				       TSL2X7X_CMD_REG | TSL2X7X_CNTRL);
@@ -575,16 +565,16 @@ static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
 		return lux_val;
 	}
 
-	gain_trim_val =  ((chip->tsl2x7x_settings.als_cal_target)
-			* chip->tsl2x7x_settings.als_gain_trim) / lux_val;
-	if ((gain_trim_val < 250) || (gain_trim_val > 4000))
+	ret = (chip->settings.als_cal_target * chip->settings.als_gain_trim) /
+			lux_val;
+	if (ret < 250 || ret > 4000)
 		return -ERANGE;
 
-	chip->tsl2x7x_settings.als_gain_trim = gain_trim_val;
+	chip->settings.als_gain_trim = ret;
 	dev_info(&chip->client->dev,
 		 "%s als_calibrate completed\n", chip->client->name);
 
-	return (int)gain_trim_val;
+	return ret;
 }
 
 static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
@@ -602,34 +592,30 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 		chip->pdata->power_on(indio_dev);
 
 	/* Non calculated parameters */
-	chip->tsl2x7x_config[TSL2X7X_PRX_TIME] =
-			chip->tsl2x7x_settings.prx_time;
-	chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] =
-			chip->tsl2x7x_settings.wait_time;
-	chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] =
-			chip->tsl2x7x_settings.prox_config;
+	chip->tsl2x7x_config[TSL2X7X_PRX_TIME] = chip->settings.prx_time;
+	chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] = chip->settings.wait_time;
+	chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] = chip->settings.prox_config;
 
 	chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHLO] =
-		(chip->tsl2x7x_settings.als_thresh_low) & 0xFF;
+		(chip->settings.als_thresh_low) & 0xFF;
 	chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHHI] =
-		(chip->tsl2x7x_settings.als_thresh_low >> 8) & 0xFF;
+		(chip->settings.als_thresh_low >> 8) & 0xFF;
 	chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHLO] =
-		(chip->tsl2x7x_settings.als_thresh_high) & 0xFF;
+		(chip->settings.als_thresh_high) & 0xFF;
 	chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHHI] =
-		(chip->tsl2x7x_settings.als_thresh_high >> 8) & 0xFF;
-	chip->tsl2x7x_config[TSL2X7X_PERSISTENCE] =
-		chip->tsl2x7x_settings.persistence;
+		(chip->settings.als_thresh_high >> 8) & 0xFF;
+	chip->tsl2x7x_config[TSL2X7X_PERSISTENCE] = chip->settings.persistence;
 
 	chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
-			chip->tsl2x7x_settings.prox_pulse_count;
+			chip->settings.prox_pulse_count;
 	chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
-			(chip->tsl2x7x_settings.prox_thres_low) & 0xFF;
+			(chip->settings.prox_thres_low) & 0xFF;
 	chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHHI] =
-			(chip->tsl2x7x_settings.prox_thres_low >> 8) & 0xFF;
+			(chip->settings.prox_thres_low >> 8) & 0xFF;
 	chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
-			(chip->tsl2x7x_settings.prox_thres_high) & 0xFF;
+			(chip->settings.prox_thres_high) & 0xFF;
 	chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHHI] =
-			(chip->tsl2x7x_settings.prox_thres_high >> 8) & 0xFF;
+			(chip->settings.prox_thres_high >> 8) & 0xFF;
 
 	/* and make sure we're not already on */
 	if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
@@ -639,7 +625,7 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 	}
 
 	/* determine als integration register */
-	als_count = (chip->tsl2x7x_settings.als_time * 100 + 135) / 270;
+	als_count = (chip->settings.als_time * 100 + 135) / 270;
 	if (!als_count)
 		als_count = 1; /* ensure at least one cycle */
 
@@ -649,9 +635,9 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 
 	/* Set the gain based on tsl2x7x_settings struct */
 	chip->tsl2x7x_config[TSL2X7X_GAIN] =
-		chip->tsl2x7x_settings.als_gain |
-			(TSL2X7X_mA100 | TSL2X7X_DIODE1)
-			| ((chip->tsl2x7x_settings.prox_gain) << 2);
+		chip->settings.als_gain |
+			(TSL2X7X_100_mA | TSL2X7X_DIODE1) |
+			(chip->settings.prox_gain << 2);
 
 	/* set chip struct re scaling and saturation */
 	chip->als_saturation = als_count * 922; /* 90% of full scale */
@@ -706,18 +692,18 @@ static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
 
 	chip->tsl2x7x_chip_status = TSL2X7X_CHIP_WORKING;
 
-	if (chip->tsl2x7x_settings.interrupts_en != 0) {
+	if (chip->settings.interrupts_en != 0) {
 		dev_info(&chip->client->dev, "Setting Up Interrupt(s)\n");
 
 		reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL;
-		if ((chip->tsl2x7x_settings.interrupts_en == 0x20) ||
-		    (chip->tsl2x7x_settings.interrupts_en == 0x30))
+		if (chip->settings.interrupts_en == 0x20 ||
+		    chip->settings.interrupts_en == 0x30)
 			reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL;
 
-		reg_val |= chip->tsl2x7x_settings.interrupts_en;
+		reg_val |= chip->settings.interrupts_en;
 		ret = i2c_smbus_write_byte_data(chip->client,
-						(TSL2X7X_CMD_REG |
-						TSL2X7X_CNTRL), reg_val);
+						TSL2X7X_CMD_REG | TSL2X7X_CNTRL,
+						reg_val);
 		if (ret < 0)
 			dev_err(&chip->client->dev,
 				"%s: failed in tsl2x7x_IOCTL_INT_SET.\n",
@@ -766,8 +752,7 @@ static int tsl2x7x_chip_off(struct iio_dev *indio_dev)
  * put device back into proper state, and unlock
  * resource.
  */
-static
-int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
+static int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 	int device_status = chip->tsl2x7x_chip_status;
@@ -791,9 +776,8 @@ unlock:
 	return ret;
 }
 
-static
-void tsl2x7x_prox_calculate(int *data, int length,
-			    struct tsl2x7x_prox_stat *statP)
+static void tsl2x7x_prox_calculate(int *data, int length,
+				   struct tsl2x7x_prox_stat *statP)
 {
 	int i;
 	int sample_sum;
@@ -837,25 +821,25 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
 	u8 tmp_irq_settings;
 	u8 current_state = chip->tsl2x7x_chip_status;
 
-	if (chip->tsl2x7x_settings.prox_max_samples_cal > MAX_SAMPLES_CAL) {
+	if (chip->settings.prox_max_samples_cal > MAX_SAMPLES_CAL) {
 		dev_err(&chip->client->dev,
 			"max prox samples cal is too big: %d\n",
-			chip->tsl2x7x_settings.prox_max_samples_cal);
-		chip->tsl2x7x_settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
+			chip->settings.prox_max_samples_cal);
+		chip->settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
 	}
 
 	/* have to stop to change settings */
 	tsl2x7x_chip_off(indio_dev);
 
 	/* Enable proximity detection save just in case prox not wanted yet*/
-	tmp_irq_settings = chip->tsl2x7x_settings.interrupts_en;
-	chip->tsl2x7x_settings.interrupts_en |= TSL2X7X_CNTL_PROX_INT_ENBL;
+	tmp_irq_settings = chip->settings.interrupts_en;
+	chip->settings.interrupts_en |= TSL2X7X_CNTL_PROX_INT_ENBL;
 
 	/*turn on device if not already on*/
 	tsl2x7x_chip_on(indio_dev);
 
 	/*gather the samples*/
-	for (i = 0; i < chip->tsl2x7x_settings.prox_max_samples_cal; i++) {
+	for (i = 0; i < chip->settings.prox_max_samples_cal; i++) {
 		usleep_range(15000, 17500);
 		tsl2x7x_get_prox(indio_dev);
 		prox_history[i] = chip->prox_data;
@@ -866,25 +850,25 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
 	tsl2x7x_chip_off(indio_dev);
 	calP = &prox_stat_data[PROX_STAT_CAL];
 	tsl2x7x_prox_calculate(prox_history,
-			       chip->tsl2x7x_settings.prox_max_samples_cal,
-			       calP);
-	chip->tsl2x7x_settings.prox_thres_high = (calP->max << 1) - calP->mean;
+			       chip->settings.prox_max_samples_cal, calP);
+	chip->settings.prox_thres_high = (calP->max << 1) - calP->mean;
 
 	dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n",
 		 calP->min, calP->mean, calP->max);
 	dev_info(&chip->client->dev,
 		 "%s proximity threshold set to %d\n",
-		 chip->client->name, chip->tsl2x7x_settings.prox_thres_high);
+		 chip->client->name, chip->settings.prox_thres_high);
 
 	/* back to the way they were */
-	chip->tsl2x7x_settings.interrupts_en = tmp_irq_settings;
+	chip->settings.interrupts_en = tmp_irq_settings;
 	if (current_state == TSL2X7X_CHIP_WORKING)
 		tsl2x7x_chip_on(indio_dev);
 }
 
-static ssize_t in_illuminance0_calibscale_available_show(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
+static ssize_t
+in_illuminance0_calibscale_available_show(struct device *dev,
+					  struct device_attribute *attr,
+					  char *buf)
 {
 	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
 
@@ -900,69 +884,23 @@ static ssize_t in_illuminance0_calibscale_available_show(struct device *dev,
 	return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
 }
 
-static ssize_t in_proximity0_calibscale_available_show(struct device *dev,
-						struct device_attribute *attr,
-						char *buf)
-{
-		return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
-}
-
-static ssize_t in_illuminance0_integration_time_show(struct device *dev,
-				     struct device_attribute *attr,
-				     char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int y, z;
-
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-	y /= 1000;
-	z %= 1000;
-
-	return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t in_illuminance0_integration_time_store(struct device *dev,
-				      struct device_attribute *attr,
-				      const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	struct tsl2x7x_parse_result result;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
-	if (ret)
-		return ret;
-
-	result.fract /= 3;
-	chip->tsl2x7x_settings.als_time =
-			TSL2X7X_MAX_TIMER_CNT - (u8)result.fract;
-
-	dev_info(&chip->client->dev, "%s: als time = %d",
-		 __func__, chip->tsl2x7x_settings.als_time);
-
-	tsl2x7x_invoke_change(indio_dev);
-
-	return IIO_VAL_INT_PLUS_MICRO;
-}
+static IIO_CONST_ATTR(in_proximity0_calibscale_available, "1 2 4 8");
 
 static IIO_CONST_ATTR(in_illuminance0_integration_time_available,
 		".00272 - .696");
 
 static ssize_t in_illuminance0_target_input_show(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
+						 struct device_attribute *attr,
+						 char *buf)
 {
 	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-			chip->tsl2x7x_settings.als_cal_target);
+	return snprintf(buf, PAGE_SIZE, "%d\n", chip->settings.als_cal_target);
 }
 
 static ssize_t in_illuminance0_target_input_store(struct device *dev,
-					    struct device_attribute *attr,
-					    const char *buf, size_t len)
+						  struct device_attribute *attr,
+						  const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
@@ -973,7 +911,7 @@ static ssize_t in_illuminance0_target_input_store(struct device *dev,
 		return -EINVAL;
 
 	if (value)
-		chip->tsl2x7x_settings.als_cal_target = value;
+		chip->settings.als_cal_target = value;
 
 	ret = tsl2x7x_invoke_change(indio_dev);
 	if (ret < 0)
@@ -982,111 +920,9 @@ static ssize_t in_illuminance0_target_input_store(struct device *dev,
 	return len;
 }
 
-/* persistence settings */
-static ssize_t in_intensity0_thresh_period_show(struct device *dev,
-					    struct device_attribute *attr,
-					    char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int y, z, filter_delay;
-
-	/* Determine integration time */
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-	filter_delay = z * (chip->tsl2x7x_settings.persistence & 0x0F);
-	y = filter_delay / 1000;
-	z = filter_delay % 1000;
-
-	return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t in_intensity0_thresh_period_store(struct device *dev,
-					     struct device_attribute *attr,
-					     const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	struct tsl2x7x_parse_result result;
-	int y, z, filter_delay;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
-	if (ret)
-		return ret;
-
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-
-	filter_delay =
-		DIV_ROUND_UP((result.integer * 1000) + result.fract, z);
-
-	chip->tsl2x7x_settings.persistence &= 0xF0;
-	chip->tsl2x7x_settings.persistence |= (filter_delay & 0x0F);
-
-	dev_info(&chip->client->dev, "%s: als persistence = %d",
-		 __func__, filter_delay);
-
-	ret = tsl2x7x_invoke_change(indio_dev);
-	if (ret < 0)
-		return ret;
-
-	return IIO_VAL_INT_PLUS_MICRO;
-}
-
-static ssize_t in_proximity0_thresh_period_show(struct device *dev,
-					     struct device_attribute *attr,
-					     char *buf)
-{
-	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
-	int y, z, filter_delay;
-
-	/* Determine integration time */
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-	filter_delay = z * ((chip->tsl2x7x_settings.persistence & 0xF0) >> 4);
-	y = filter_delay / 1000;
-	z = filter_delay % 1000;
-
-	return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
-}
-
-static ssize_t in_proximity0_thresh_period_store(struct device *dev,
-					      struct device_attribute *attr,
-					      const char *buf, size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	struct tsl2x7x_parse_result result;
-	int y, z, filter_delay;
-	int ret;
-
-	ret = iio_str_to_fixpoint(buf, 100, &result.integer, &result.fract);
-	if (ret)
-		return ret;
-
-	y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
-	z = y * TSL2X7X_MIN_ITIME;
-
-	filter_delay =
-		DIV_ROUND_UP((result.integer * 1000) + result.fract, z);
-
-	chip->tsl2x7x_settings.persistence &= 0x0F;
-	chip->tsl2x7x_settings.persistence |= ((filter_delay << 4) & 0xF0);
-
-	dev_info(&chip->client->dev, "%s: prox persistence = %d",
-		 __func__, filter_delay);
-
-	ret = tsl2x7x_invoke_change(indio_dev);
-	if (ret < 0)
-		return ret;
-
-
-	return IIO_VAL_INT_PLUS_MICRO;
-}
-
 static ssize_t in_illuminance0_calibrate_store(struct device *dev,
-				    struct device_attribute *attr,
-				    const char *buf, size_t len)
+					       struct device_attribute *attr,
+					       const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	bool value;
@@ -1106,14 +942,14 @@ static ssize_t in_illuminance0_calibrate_store(struct device *dev,
 }
 
 static ssize_t in_illuminance0_lux_table_show(struct device *dev,
-				     struct device_attribute *attr,
-				     char *buf)
+					      struct device_attribute *attr,
+					      char *buf)
 {
 	struct tsl2X7X_chip *chip = iio_priv(dev_to_iio_dev(dev));
 	int i = 0;
 	int offset = 0;
 
-	while (i < (TSL2X7X_MAX_LUX_TABLE_SIZE * 3)) {
+	while (i < TSL2X7X_MAX_LUX_TABLE_SIZE) {
 		offset += snprintf(buf + offset, PAGE_SIZE, "%u,%u,%u,",
 			chip->tsl2x7x_device_lux[i].ratio,
 			chip->tsl2x7x_device_lux[i].ch0,
@@ -1134,8 +970,8 @@ static ssize_t in_illuminance0_lux_table_show(struct device *dev,
 }
 
 static ssize_t in_illuminance0_lux_table_store(struct device *dev,
-				      struct device_attribute *attr,
-				      const char *buf, size_t len)
+					       struct device_attribute *attr,
+					       const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
@@ -1176,8 +1012,8 @@ static ssize_t in_illuminance0_lux_table_store(struct device *dev,
 }
 
 static ssize_t in_proximity0_calibrate_store(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf, size_t len)
+					     struct device_attribute *attr,
+					     const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	bool value;
@@ -1205,9 +1041,9 @@ static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
 	int ret;
 
 	if (chan->type == IIO_INTENSITY)
-		ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x10);
+		ret = !!(chip->settings.interrupts_en & 0x10);
 	else
-		ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x20);
+		ret = !!(chip->settings.interrupts_en & 0x20);
 
 	return ret;
 }
@@ -1223,14 +1059,14 @@ static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
 
 	if (chan->type == IIO_INTENSITY) {
 		if (val)
-			chip->tsl2x7x_settings.interrupts_en |= 0x10;
+			chip->settings.interrupts_en |= 0x10;
 		else
-			chip->tsl2x7x_settings.interrupts_en &= 0x20;
+			chip->settings.interrupts_en &= 0x20;
 	} else {
 		if (val)
-			chip->tsl2x7x_settings.interrupts_en |= 0x20;
+			chip->settings.interrupts_en |= 0x20;
 		else
-			chip->tsl2x7x_settings.interrupts_en &= 0x10;
+			chip->settings.interrupts_en &= 0x10;
 	}
 
 	ret = tsl2x7x_invoke_change(indio_dev);
@@ -1248,18 +1084,19 @@ static int tsl2x7x_write_event_value(struct iio_dev *indio_dev,
 				     int val, int val2)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int ret = -EINVAL;
+	int ret = -EINVAL, y, z, filter_delay;
+	u8 time;
 
 	switch (info) {
 	case IIO_EV_INFO_VALUE:
 		if (chan->type == IIO_INTENSITY) {
 			switch (dir) {
 			case IIO_EV_DIR_RISING:
-				chip->tsl2x7x_settings.als_thresh_high = val;
+				chip->settings.als_thresh_high = val;
 				ret = 0;
 				break;
 			case IIO_EV_DIR_FALLING:
-				chip->tsl2x7x_settings.als_thresh_low = val;
+				chip->settings.als_thresh_low = val;
 				ret = 0;
 				break;
 			default:
@@ -1268,11 +1105,11 @@ static int tsl2x7x_write_event_value(struct iio_dev *indio_dev,
 		} else {
 			switch (dir) {
 			case IIO_EV_DIR_RISING:
-				chip->tsl2x7x_settings.prox_thres_high = val;
+				chip->settings.prox_thres_high = val;
 				ret = 0;
 				break;
 			case IIO_EV_DIR_FALLING:
-				chip->tsl2x7x_settings.prox_thres_low = val;
+				chip->settings.prox_thres_low = val;
 				ret = 0;
 				break;
 			default:
@@ -1280,6 +1117,33 @@ static int tsl2x7x_write_event_value(struct iio_dev *indio_dev,
 			}
 		}
 		break;
+	case IIO_EV_INFO_PERIOD:
+		if (chan->type == IIO_INTENSITY)
+			time = chip->settings.als_time;
+		else
+			time = chip->settings.prx_time;
+
+		y = (TSL2X7X_MAX_TIMER_CNT - time) + 1;
+		z = y * TSL2X7X_MIN_ITIME;
+
+		filter_delay = DIV_ROUND_UP((val * 1000) + val2, z);
+
+		if (chan->type == IIO_INTENSITY) {
+			chip->settings.persistence &= 0xF0;
+			chip->settings.persistence |=
+				(filter_delay & 0x0F);
+			dev_info(&chip->client->dev, "%s: ALS persistence = %d",
+				 __func__, filter_delay);
+		} else {
+			chip->settings.persistence &= 0x0F;
+			chip->settings.persistence |=
+				((filter_delay << 4) & 0xF0);
+			dev_info(&chip->client->dev,
+				 "%s: Proximity persistence = %d",
+				 __func__, filter_delay);
+		}
+		ret = 0;
+		break;
 	default:
 		break;
 	}
@@ -1298,18 +1162,19 @@ static int tsl2x7x_read_event_value(struct iio_dev *indio_dev,
 				    int *val, int *val2)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
-	int ret = -EINVAL;
+	int ret = -EINVAL, filter_delay, mult;
+	u8 time;
 
 	switch (info) {
 	case IIO_EV_INFO_VALUE:
 		if (chan->type == IIO_INTENSITY) {
 			switch (dir) {
 			case IIO_EV_DIR_RISING:
-				*val = chip->tsl2x7x_settings.als_thresh_high;
+				*val = chip->settings.als_thresh_high;
 				ret = IIO_VAL_INT;
 				break;
 			case IIO_EV_DIR_FALLING:
-				*val = chip->tsl2x7x_settings.als_thresh_low;
+				*val = chip->settings.als_thresh_low;
 				ret = IIO_VAL_INT;
 				break;
 			default:
@@ -1318,11 +1183,11 @@ static int tsl2x7x_read_event_value(struct iio_dev *indio_dev,
 		} else {
 			switch (dir) {
 			case IIO_EV_DIR_RISING:
-				*val = chip->tsl2x7x_settings.prox_thres_high;
+				*val = chip->settings.prox_thres_high;
 				ret = IIO_VAL_INT;
 				break;
 			case IIO_EV_DIR_FALLING:
-				*val = chip->tsl2x7x_settings.prox_thres_low;
+				*val = chip->settings.prox_thres_low;
 				ret = IIO_VAL_INT;
 				break;
 			default:
@@ -1330,6 +1195,23 @@ static int tsl2x7x_read_event_value(struct iio_dev *indio_dev,
 			}
 		}
 		break;
+	case IIO_EV_INFO_PERIOD:
+		if (chan->type == IIO_INTENSITY) {
+			time = chip->settings.als_time;
+			mult = chip->settings.persistence & 0x0F;
+		} else {
+			time = chip->settings.prx_time;
+			mult = (chip->settings.persistence & 0xF0) >> 4;
+		}
+
+		/* Determine integration time */
+		*val = (TSL2X7X_MAX_TIMER_CNT - time) + 1;
+		*val2 = *val * TSL2X7X_MIN_ITIME;
+		filter_delay = *val2 * mult;
+		*val = filter_delay / 1000;
+		*val2 = filter_delay % 1000;
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
 	default:
 		break;
 	}
@@ -1379,18 +1261,20 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
 		break;
 	case IIO_CHAN_INFO_CALIBSCALE:
 		if (chan->type == IIO_LIGHT)
-			*val =
-			tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain];
+			*val = tsl2x7x_als_gain[chip->settings.als_gain];
 		else
-			*val =
-			tsl2X7X_prx_gainadj[chip->tsl2x7x_settings.prox_gain];
+			*val = tsl2x7x_prx_gain[chip->settings.prox_gain];
 		ret = IIO_VAL_INT;
 		break;
 	case IIO_CHAN_INFO_CALIBBIAS:
-		*val = chip->tsl2x7x_settings.als_gain_trim;
+		*val = chip->settings.als_gain_trim;
 		ret = IIO_VAL_INT;
 		break;
-
+	case IIO_CHAN_INFO_INT_TIME:
+		*val = (TSL2X7X_MAX_TIMER_CNT - chip->settings.als_time) + 1;
+		*val2 = ((*val * TSL2X7X_MIN_ITIME) % 1000) / 1000;
+		ret = IIO_VAL_INT_PLUS_MICRO;
+		break;
 	default:
 		ret = -EINVAL;
 	}
@@ -1411,13 +1295,13 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 		if (chan->type == IIO_INTENSITY) {
 			switch (val) {
 			case 1:
-				chip->tsl2x7x_settings.als_gain = 0;
+				chip->settings.als_gain = 0;
 				break;
 			case 8:
-				chip->tsl2x7x_settings.als_gain = 1;
+				chip->settings.als_gain = 1;
 				break;
 			case 16:
-				chip->tsl2x7x_settings.als_gain = 2;
+				chip->settings.als_gain = 2;
 				break;
 			case 120:
 				switch (chip->id) {
@@ -1428,7 +1312,7 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 				case tmd2772:
 					return -EINVAL;
 				}
-				chip->tsl2x7x_settings.als_gain = 3;
+				chip->settings.als_gain = 3;
 				break;
 			case 128:
 				switch (chip->id) {
@@ -1439,7 +1323,7 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 				case tmd2771:
 					return -EINVAL;
 				}
-				chip->tsl2x7x_settings.als_gain = 3;
+				chip->settings.als_gain = 3;
 				break;
 			default:
 				return -EINVAL;
@@ -1447,16 +1331,16 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 		} else {
 			switch (val) {
 			case 1:
-				chip->tsl2x7x_settings.prox_gain = 0;
+				chip->settings.prox_gain = 0;
 				break;
 			case 2:
-				chip->tsl2x7x_settings.prox_gain = 1;
+				chip->settings.prox_gain = 1;
 				break;
 			case 4:
-				chip->tsl2x7x_settings.prox_gain = 2;
+				chip->settings.prox_gain = 2;
 				break;
 			case 8:
-				chip->tsl2x7x_settings.prox_gain = 3;
+				chip->settings.prox_gain = 3;
 				break;
 			default:
 				return -EINVAL;
@@ -1464,9 +1348,15 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 		}
 		break;
 	case IIO_CHAN_INFO_CALIBBIAS:
-		chip->tsl2x7x_settings.als_gain_trim = val;
+		chip->settings.als_gain_trim = val;
 		break;
+	case IIO_CHAN_INFO_INT_TIME:
+		chip->settings.als_time =
+			TSL2X7X_MAX_TIMER_CNT - (val2 / TSL2X7X_MIN_ITIME);
 
+		dev_info(&chip->client->dev, "%s: als time = %d",
+			 __func__, chip->settings.als_time);
+		break;
 	default:
 		return -EINVAL;
 	}
@@ -1474,12 +1364,8 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 	return tsl2x7x_invoke_change(indio_dev);
 }
 
-static DEVICE_ATTR_RO(in_proximity0_calibscale_available);
-
 static DEVICE_ATTR_RO(in_illuminance0_calibscale_available);
 
-static DEVICE_ATTR_RW(in_illuminance0_integration_time);
-
 static DEVICE_ATTR_RW(in_illuminance0_target_input);
 
 static DEVICE_ATTR_WO(in_illuminance0_calibrate);
@@ -1488,10 +1374,6 @@ static DEVICE_ATTR_WO(in_proximity0_calibrate);
 
 static DEVICE_ATTR_RW(in_illuminance0_lux_table);
 
-static DEVICE_ATTR_RW(in_intensity0_thresh_period);
-
-static DEVICE_ATTR_RW(in_proximity0_thresh_period);
-
 /* Use the default register values to identify the Taos device */
 static int tsl2x7x_device_id(int *id, int target)
 {
@@ -1559,7 +1441,6 @@ static irqreturn_t tsl2x7x_event_handler(int irq, void *private)
 
 static struct attribute *tsl2x7x_ALS_device_attrs[] = {
 	&dev_attr_in_illuminance0_calibscale_available.attr,
-	&dev_attr_in_illuminance0_integration_time.attr,
 	&iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
 	&dev_attr_in_illuminance0_target_input.attr,
 	&dev_attr_in_illuminance0_calibrate.attr,
@@ -1574,49 +1455,31 @@ static struct attribute *tsl2x7x_PRX_device_attrs[] = {
 
 static struct attribute *tsl2x7x_ALSPRX_device_attrs[] = {
 	&dev_attr_in_illuminance0_calibscale_available.attr,
-	&dev_attr_in_illuminance0_integration_time.attr,
 	&iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
 	&dev_attr_in_illuminance0_target_input.attr,
 	&dev_attr_in_illuminance0_calibrate.attr,
 	&dev_attr_in_illuminance0_lux_table.attr,
-	&dev_attr_in_proximity0_calibrate.attr,
+	&iio_const_attr_in_proximity0_calibscale_available.dev_attr.attr,
 	NULL
 };
 
 static struct attribute *tsl2x7x_PRX2_device_attrs[] = {
 	&dev_attr_in_proximity0_calibrate.attr,
-	&dev_attr_in_proximity0_calibscale_available.attr,
+	&iio_const_attr_in_proximity0_calibscale_available.dev_attr.attr,
 	NULL
 };
 
 static struct attribute *tsl2x7x_ALSPRX2_device_attrs[] = {
 	&dev_attr_in_illuminance0_calibscale_available.attr,
-	&dev_attr_in_illuminance0_integration_time.attr,
 	&iio_const_attr_in_illuminance0_integration_time_available.dev_attr.attr,
 	&dev_attr_in_illuminance0_target_input.attr,
 	&dev_attr_in_illuminance0_calibrate.attr,
 	&dev_attr_in_illuminance0_lux_table.attr,
 	&dev_attr_in_proximity0_calibrate.attr,
-	&dev_attr_in_proximity0_calibscale_available.attr,
+	&iio_const_attr_in_proximity0_calibscale_available.dev_attr.attr,
 	NULL
 };
 
-static struct attribute *tsl2X7X_ALS_event_attrs[] = {
-	&dev_attr_in_intensity0_thresh_period.attr,
-	NULL,
-};
-
-static struct attribute *tsl2X7X_PRX_event_attrs[] = {
-	&dev_attr_in_proximity0_thresh_period.attr,
-	NULL,
-};
-
-static struct attribute *tsl2X7X_ALSPRX_event_attrs[] = {
-	&dev_attr_in_intensity0_thresh_period.attr,
-	&dev_attr_in_proximity0_thresh_period.attr,
-	NULL,
-};
-
 static const struct attribute_group tsl2X7X_device_attr_group_tbl[] = {
 	[ALS] = {
 		.attrs = tsl2x7x_ALS_device_attrs,
@@ -1635,26 +1498,9 @@ static const struct attribute_group tsl2X7X_device_attr_group_tbl[] = {
 	},
 };
 
-static const struct attribute_group tsl2X7X_event_attr_group_tbl[] = {
-	[ALS] = {
-		.attrs = tsl2X7X_ALS_event_attrs,
-		.name = "events",
-	},
-	[PRX] = {
-		.attrs = tsl2X7X_PRX_event_attrs,
-		.name = "events",
-	},
-	[ALSPRX] = {
-		.attrs = tsl2X7X_ALSPRX_event_attrs,
-		.name = "events",
-	},
-};
-
 static const struct iio_info tsl2X7X_device_info[] = {
 	[ALS] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[ALS],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[ALS],
-		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
 		.read_event_value = &tsl2x7x_read_event_value,
@@ -1664,8 +1510,6 @@ static const struct iio_info tsl2X7X_device_info[] = {
 	},
 	[PRX] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[PRX],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
-		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
 		.read_event_value = &tsl2x7x_read_event_value,
@@ -1675,8 +1519,6 @@ static const struct iio_info tsl2X7X_device_info[] = {
 	},
 	[ALSPRX] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
-		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
 		.read_event_value = &tsl2x7x_read_event_value,
@@ -1686,8 +1528,6 @@ static const struct iio_info tsl2X7X_device_info[] = {
 	},
 	[PRX2] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[PRX2],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[PRX],
-		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
 		.read_event_value = &tsl2x7x_read_event_value,
@@ -1697,8 +1537,6 @@ static const struct iio_info tsl2X7X_device_info[] = {
 	},
 	[ALSPRX2] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX2],
-		.event_attrs = &tsl2X7X_event_attr_group_tbl[ALSPRX],
-		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
 		.read_event_value = &tsl2x7x_read_event_value,
@@ -1719,6 +1557,10 @@ static const struct iio_event_spec tsl2x7x_events[] = {
 		.dir = IIO_EV_DIR_FALLING,
 		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
 			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_EITHER,
+		.mask_separate = BIT(IIO_EV_INFO_PERIOD),
 	},
 };
 
@@ -1729,7 +1571,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.type = IIO_LIGHT,
 			.indexed = 1,
 			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+					      BIT(IIO_CHAN_INFO_INT_TIME),
 			}, {
 			.type = IIO_INTENSITY,
 			.indexed = 1,
@@ -1768,7 +1611,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.type = IIO_LIGHT,
 			.indexed = 1,
 			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED)
+			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+					      BIT(IIO_CHAN_INFO_INT_TIME),
 			}, {
 			.type = IIO_INTENSITY,
 			.indexed = 1,
@@ -1816,7 +1660,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.type = IIO_LIGHT,
 			.indexed = 1,
 			.channel = 0,
-			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+			.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+					      BIT(IIO_CHAN_INFO_INT_TIME),
 			}, {
 			.type = IIO_INTENSITY,
 			.indexed = 1,
@@ -1874,7 +1719,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 		return -EINVAL;
 	}
 
-	ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
+	ret = i2c_smbus_write_byte(clientp, TSL2X7X_CMD_REG | TSL2X7X_CNTRL);
 	if (ret < 0) {
 		dev_err(&clientp->dev, "write to cmd reg failed. err = %d\n",
 			ret);
@@ -1982,7 +1827,7 @@ static int tsl2x7x_remove(struct i2c_client *client)
 	return 0;
 }
 
-static struct i2c_device_id tsl2x7x_idtable[] = {
+static const struct i2c_device_id tsl2x7x_idtable[] = {
 	{ "tsl2571", tsl2571 },
 	{ "tsl2671", tsl2671 },
 	{ "tmd2671", tmd2671 },
diff --git a/drivers/staging/iio/light/tsl2x7x.h b/drivers/staging/iio/light/tsl2x7x.h
index ecae92211216..df00f2ec1719 100644
--- a/drivers/staging/iio/light/tsl2x7x.h
+++ b/drivers/staging/iio/light/tsl2x7x.h
@@ -23,18 +23,19 @@
 #define __TSL2X7X_H
 #include <linux/pm.h>
 
-/* Max number of segments allowable in LUX table */
-#define TSL2X7X_MAX_LUX_TABLE_SIZE		9
-#define MAX_DEFAULT_TABLE_BYTES (sizeof(int) * TSL2X7X_MAX_LUX_TABLE_SIZE)
-
-struct iio_dev;
-
 struct tsl2x7x_lux {
 	unsigned int ratio;
 	unsigned int ch0;
 	unsigned int ch1;
 };
 
+/* Max number of segments allowable in LUX table */
+#define TSL2X7X_MAX_LUX_TABLE_SIZE		9
+/* The default LUX tables all have 3 elements.  */
+#define TSL2X7X_DEF_LUX_TABLE_SZ		3
+#define TSL2X7X_DEFAULT_TABLE_BYTES (sizeof(struct tsl2x7x_lux) * \
+				     TSL2X7X_DEF_LUX_TABLE_SZ)
+
 /**
  * struct tsl2x7x_default_settings - power on defaults unless
  *                                   overridden by platform data.
diff --git a/drivers/staging/iio/meter/Makefile b/drivers/staging/iio/meter/Makefile
index de3863d6b078..19e7982f5563 100644
--- a/drivers/staging/iio/meter/Makefile
+++ b/drivers/staging/iio/meter/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for metering ic drivers
 #
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index ce26abdeab92..c44eb577dc35 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -80,7 +80,7 @@
  * @us:         actual spi_device
  * @tx:         transmit buffer
  * @rx:         receive buffer
- * @buf_lock:       mutex to protect tx and rx
+ * @buf_lock:       mutex to protect tx, rx and write frequency
  **/
 struct ade7753_state {
 	struct spi_device   *us;
@@ -107,6 +107,19 @@ static int ade7753_spi_write_reg_8(struct device *dev,
 	return ret;
 }
 
+static int __ade7753_spi_write_reg_16(struct device *dev, u8 reg_address,
+				      u16 value)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct ade7753_state *st = iio_priv(indio_dev);
+
+	st->tx[0] = ADE7753_WRITE_REG(reg_address);
+	st->tx[1] = (value >> 8) & 0xFF;
+	st->tx[2] = value & 0xFF;
+
+	return spi_write(st->us, st->tx, 3);
+}
+
 static int ade7753_spi_write_reg_16(struct device *dev, u8 reg_address,
 				    u16 value)
 {
@@ -115,10 +128,7 @@ static int ade7753_spi_write_reg_16(struct device *dev, u8 reg_address,
 	struct ade7753_state *st = iio_priv(indio_dev);
 
 	mutex_lock(&st->buf_lock);
-	st->tx[0] = ADE7753_WRITE_REG(reg_address);
-	st->tx[1] = (value >> 8) & 0xFF;
-	st->tx[2] = value & 0xFF;
-	ret = spi_write(st->us, st->tx, 3);
+	ret = __ade7753_spi_write_reg_16(dev, reg_address, value);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -483,7 +493,7 @@ static ssize_t ade7753_write_frequency(struct device *dev,
 	if (!val)
 		return -EINVAL;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->buf_lock);
 
 	t = 27900 / val;
 	if (t > 0)
@@ -501,10 +511,10 @@ static ssize_t ade7753_write_frequency(struct device *dev,
 	reg &= ~(3 << 11);
 	reg |= t << 11;
 
-	ret = ade7753_spi_write_reg_16(dev, ADE7753_MODE, reg);
+	ret = __ade7753_spi_write_reg_16(dev, ADE7753_MODE, reg);
 
 out:
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->buf_lock);
 
 	return ret ? ret : len;
 }
@@ -561,7 +571,6 @@ static const struct attribute_group ade7753_attribute_group = {
 
 static const struct iio_info ade7753_info = {
 	.attrs = &ade7753_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ade7753_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index be0df3fe4230..3a1e342d75fb 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -601,7 +601,6 @@ static const struct attribute_group ade7754_attribute_group = {
 
 static const struct iio_info ade7754_info = {
 	.attrs = &ade7754_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ade7754_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 40498af4dc46..7b7ffe5ed186 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -827,7 +827,6 @@ static const struct iio_info ade7758_info = {
 	.attrs = &ade7758_attribute_group,
 	.read_raw = &ade7758_read_raw,
 	.write_raw = &ade7758_write_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ade7758_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/meter/ade7758_trigger.c b/drivers/staging/iio/meter/ade7758_trigger.c
index 5b35a7f08f4f..1f0d1a0cf889 100644
--- a/drivers/staging/iio/meter/ade7758_trigger.c
+++ b/drivers/staging/iio/meter/ade7758_trigger.c
@@ -53,7 +53,6 @@ static int ade7758_trig_try_reen(struct iio_trigger *trig)
 }
 
 static const struct iio_trigger_ops ade7758_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = &ade7758_data_rdy_trigger_set_state,
 	.try_reenable = &ade7758_trig_try_reen,
 };
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index 1691760339da..d99cf508d8d0 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -60,7 +60,7 @@
 /**
  * struct ade7759_state - device instance specific data
  * @us:			actual spi_device
- * @buf_lock:		mutex to protect tx and rx
+ * @buf_lock:		mutex to protect tx and rx and write frequency
  * @tx:			transmit buffer
  * @rx:			receive buffer
  **/
@@ -89,19 +89,30 @@ static int ade7759_spi_write_reg_8(struct device *dev,
 	return ret;
 }
 
-static int ade7759_spi_write_reg_16(struct device *dev,
+/*Unlocked version of ade7759_spi_write_reg_16 function */
+static int __ade7759_spi_write_reg_16(struct device *dev,
 		u8 reg_address,
 		u16 value)
 {
-	int ret;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7759_state *st = iio_priv(indio_dev);
 
-	mutex_lock(&st->buf_lock);
 	st->tx[0] = ADE7759_WRITE_REG(reg_address);
 	st->tx[1] = (value >> 8) & 0xFF;
 	st->tx[2] = value & 0xFF;
-	ret = spi_write(st->us, st->tx, 3);
+	return spi_write(st->us, st->tx, 3);
+}
+
+static int ade7759_spi_write_reg_16(struct device *dev,
+		u8 reg_address,
+		u16 value)
+{
+	int ret;
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct ade7759_state *st = iio_priv(indio_dev);
+
+	mutex_lock(&st->buf_lock);
+	ret = __ade7759_spi_write_reg_16(dev, reg_address, value);
 	mutex_unlock(&st->buf_lock);
 
 	return ret;
@@ -172,7 +183,7 @@ static int ade7759_spi_read_reg_40(struct device *dev,
 				reg_address);
 		goto error_ret;
 	}
-	*val = ((u64)st->rx[1] << 32) | (st->rx[2] << 24) |
+	*val = ((u64)st->rx[1] << 32) | ((u64)st->rx[2] << 24) |
 		(st->rx[3] << 16) | (st->rx[4] << 8) | st->rx[5];
 
 error_ret:
@@ -429,7 +440,7 @@ static ssize_t ade7759_write_frequency(struct device *dev,
 	if (!val)
 		return -EINVAL;
 
-	mutex_lock(&indio_dev->mlock);
+	mutex_lock(&st->buf_lock);
 
 	t = 27900 / val;
 	if (t > 0)
@@ -447,10 +458,10 @@ static ssize_t ade7759_write_frequency(struct device *dev,
 	reg &= ~(3 << 13);
 	reg |= t << 13;
 
-	ret = ade7759_spi_write_reg_16(dev, ADE7759_MODE, reg);
+	ret = __ade7759_spi_write_reg_16(dev, ADE7759_MODE, reg);
 
 out:
-	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&st->buf_lock);
 
 	return ret ? ret : len;
 }
@@ -493,7 +504,6 @@ static const struct attribute_group ade7759_attribute_group = {
 
 static const struct iio_info ade7759_info = {
 	.attrs = &ade7759_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ade7759_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c
index 70612da64a8b..90d07cdca4b8 100644
--- a/drivers/staging/iio/meter/ade7854.c
+++ b/drivers/staging/iio/meter/ade7854.c
@@ -530,7 +530,6 @@ static const struct attribute_group ade7854_attribute_group = {
 
 static const struct iio_info ade7854_info = {
 	.attrs = &ade7854_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 int ade7854_probe(struct iio_dev *indio_dev, struct device *dev)
diff --git a/drivers/staging/iio/meter/ade7854.h b/drivers/staging/iio/meter/ade7854.h
index dbd97def9cd8..c27247a7891a 100644
--- a/drivers/staging/iio/meter/ade7854.h
+++ b/drivers/staging/iio/meter/ade7854.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADE7854_H
 #define _ADE7854_H
 
diff --git a/drivers/staging/iio/meter/meter.h b/drivers/staging/iio/meter/meter.h
index 0e37f23853f1..edf26302fa57 100644
--- a/drivers/staging/iio/meter/meter.h
+++ b/drivers/staging/iio/meter/meter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _METER_H
 #define _METER_H
 
diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index a37e199225f4..aa62c64e9bc4 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -98,7 +98,6 @@ static const struct iio_chan_spec ad2s1200_channels[] = {
 
 static const struct iio_info ad2s1200_info = {
 	.read_raw = ad2s1200_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad2s1200_probe(struct spi_device *spi)
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index 3e00df74b18c..f8baab061eba 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -638,7 +638,6 @@ error_ret:
 static const struct iio_info ad2s1210_info = {
 	.read_raw = ad2s1210_read_raw,
 	.attrs = &ad2s1210_attribute_group,
-	.driver_module = THIS_MODULE,
 };
 
 static int ad2s1210_setup_gpios(struct ad2s1210_state *st)
diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
index b2270908f26f..59586947a936 100644
--- a/drivers/staging/iio/resolver/ad2s90.c
+++ b/drivers/staging/iio/resolver/ad2s90.c
@@ -48,7 +48,6 @@ error_ret:
 
 static const struct iio_info ad2s90_info = {
 	.read_raw = ad2s90_read_raw,
-	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_chan_spec ad2s90_chan = {
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
index 4e0b4eedb53d..d80dcf82eba9 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
@@ -172,7 +172,6 @@ static int iio_bfin_tmr_get_number(int irq)
 }
 
 static const struct iio_trigger_ops iio_bfin_tmr_trigger_ops = {
-	.owner = THIS_MODULE,
 	.set_trigger_state = iio_bfin_tmr_set_state,
 };
 
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.h b/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
index c07321f8d94c..fb05a2a8397c 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_BFIN_TIMER_TRIGGER_H__
 #define __IIO_BFIN_TIMER_TRIGGER_H__
 
diff --git a/drivers/staging/irda/drivers/ali-ircc.c b/drivers/staging/irda/drivers/ali-ircc.c
index 35f198d83701..589cd01797f4 100644
--- a/drivers/staging/irda/drivers/ali-ircc.c
+++ b/drivers/staging/irda/drivers/ali-ircc.c
@@ -1876,8 +1876,7 @@ static int  ali_ircc_dma_receive_complete(struct ali_ircc_cb *self)
 			self->stamp = ktime_get();
 
 			skb = dev_alloc_skb(len+1);
-			if (skb == NULL)  
-			{
+			if (!skb) {
 				self->netdev->stats.rx_dropped++;
 
 				return FALSE;
diff --git a/drivers/staging/irda/drivers/au1k_ir.c b/drivers/staging/irda/drivers/au1k_ir.c
index be4ea6aa57a9..73e3e4b041bf 100644
--- a/drivers/staging/irda/drivers/au1k_ir.c
+++ b/drivers/staging/irda/drivers/au1k_ir.c
@@ -290,8 +290,7 @@ static int au1k_irda_set_speed(struct net_device *dev, int speed)
 	while (irda_read(aup, IR_STATUS) & (IR_RX_STATUS | IR_TX_STATUS)) {
 		msleep(20);
 		if (!timeout--) {
-			printk(KERN_ERR "%s: rx/tx disable timeout\n",
-					dev->name);
+			netdev_err(dev, "rx/tx disable timeout\n");
 			break;
 		}
 	}
@@ -349,7 +348,7 @@ static int au1k_irda_set_speed(struct net_device *dev, int speed)
 				IR_RX_ENABLE);
 		break;
 	default:
-		printk(KERN_ERR "%s unsupported speed %x\n", dev->name, speed);
+		netdev_err(dev, "unsupported speed %x\n", speed);
 		ret = -EINVAL;
 		break;
 	}
@@ -361,18 +360,18 @@ static int au1k_irda_set_speed(struct net_device *dev, int speed)
 	irda_write(aup, IR_RING_PROMPT, 0);
 
 	if (control & (1 << 14)) {
-		printk(KERN_ERR "%s: configuration error\n", dev->name);
+		netdev_err(dev, "configuration error\n");
 	} else {
 		if (control & (1 << 11))
-			printk(KERN_DEBUG "%s Valid SIR config\n", dev->name);
+			netdev_debug(dev, "Valid SIR config\n");
 		if (control & (1 << 12))
-			printk(KERN_DEBUG "%s Valid MIR config\n", dev->name);
+			netdev_debug(dev, "Valid MIR config\n");
 		if (control & (1 << 13))
-			printk(KERN_DEBUG "%s Valid FIR config\n", dev->name);
+			netdev_debug(dev, "Valid FIR config\n");
 		if (control & (1 << 10))
-			printk(KERN_DEBUG "%s TX enabled\n", dev->name);
+			netdev_debug(dev, "TX enabled\n");
 		if (control & (1 << 9))
-			printk(KERN_DEBUG "%s RX enabled\n", dev->name);
+			netdev_debug(dev, "RX enabled\n");
 	}
 
 	return ret;
@@ -584,23 +583,21 @@ static int au1k_irda_start(struct net_device *dev)
 
 	retval = au1k_init(dev);
 	if (retval) {
-		printk(KERN_ERR "%s: error in au1k_init\n", dev->name);
+		netdev_err(dev, "error in au1k_init\n");
 		return retval;
 	}
 
 	retval = request_irq(aup->irq_tx, &au1k_irda_interrupt, 0,
 			     dev->name, dev);
 	if (retval) {
-		printk(KERN_ERR "%s: unable to get IRQ %d\n",
-				dev->name, dev->irq);
+		netdev_err(dev, "unable to get IRQ %d\n", dev->irq);
 		return retval;
 	}
 	retval = request_irq(aup->irq_rx, &au1k_irda_interrupt, 0,
 			     dev->name, dev);
 	if (retval) {
 		free_irq(aup->irq_tx, dev);
-		printk(KERN_ERR "%s: unable to get IRQ %d\n",
-				dev->name, dev->irq);
+		netdev_err(dev, "unable to get IRQ %d\n", dev->irq);
 		return retval;
 	}
 
@@ -673,12 +670,12 @@ static int au1k_irda_hard_xmit(struct sk_buff *skb, struct net_device *dev)
 	flags = ptxd->flags;
 
 	if (flags & AU_OWN) {
-		printk(KERN_DEBUG "%s: tx_full\n", dev->name);
+		netdev_debug(dev, "tx_full\n");
 		netif_stop_queue(dev);
 		aup->tx_full = 1;
 		return 1;
 	} else if (((aup->tx_head + 1) & (NUM_IR_DESC - 1)) == aup->tx_tail) {
-		printk(KERN_DEBUG "%s: tx_full\n", dev->name);
+		netdev_debug(dev, "tx_full\n");
 		netif_stop_queue(dev);
 		aup->tx_full = 1;
 		return 1;
@@ -688,7 +685,7 @@ static int au1k_irda_hard_xmit(struct sk_buff *skb, struct net_device *dev)
 
 #if 0
 	if (irda_read(aup, IR_RX_BYTE_CNT) != 0) {
-		printk(KERN_DEBUG "tx warning: rx byte cnt %x\n",
+		netdev_debug(dev, "tx warning: rx byte cnt %x\n",
 				irda_read(aup, IR_RX_BYTE_CNT));
 	}
 #endif
@@ -726,7 +723,7 @@ static void au1k_tx_timeout(struct net_device *dev)
 	u32 speed;
 	struct au1k_private *aup = netdev_priv(dev);
 
-	printk(KERN_ERR "%s: tx timeout\n", dev->name);
+	netdev_err(dev, "tx timeout\n");
 	speed = aup->speed;
 	aup->speed = 0;
 	au1k_irda_set_speed(dev, speed);
@@ -751,8 +748,7 @@ static int au1k_irda_ioctl(struct net_device *dev, struct ifreq *ifreq, int cmd)
 				ret = au1k_irda_set_speed(dev,
 						rq->ifr_baudrate);
 			else {
-				printk(KERN_ERR "%s ioctl: !netif_running\n",
-						dev->name);
+				netdev_err(dev, "ioctl: !netif_running\n");
 				ret = 0;
 			}
 		}
@@ -868,7 +864,7 @@ out3:
 out2:
 	kfree(aup->rx_buff.head);
 out1:
-	printk(KERN_ERR "au1k_irda_net_init() failed.  Returns %d\n", retval);
+	netdev_err(dev, "au1k_irda_net_init() failed.  Returns %d\n");
 	return retval;
 }
 
@@ -934,7 +930,7 @@ static int au1k_irda_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, dev);
 
-	printk(KERN_INFO "IrDA: Registered device %s\n", dev->name);
+	netdev_info(dev, "IrDA: Registered device\n");
 	return 0;
 
 out4:
diff --git a/drivers/staging/irda/drivers/bfin_sir.c b/drivers/staging/irda/drivers/bfin_sir.c
index 3151b580dbd6..59e409b68349 100644
--- a/drivers/staging/irda/drivers/bfin_sir.c
+++ b/drivers/staging/irda/drivers/bfin_sir.c
@@ -22,6 +22,8 @@ static int max_rate = 57600;
 static int max_rate = 115200;
 #endif
 
+static void bfin_sir_rx_dma_timeout(struct timer_list *t);
+
 static void turnaround_delay(int mtt)
 {
 	long ticks;
@@ -57,7 +59,7 @@ static void bfin_sir_init_ports(struct bfin_sir_port *sp, struct platform_device
 	sp->clk = get_sclk();
 #ifdef CONFIG_SIR_BFIN_DMA
 	sp->tx_done        = 1;
-	init_timer(&(sp->rx_dma_timer));
+	timer_setup(&sp->rx_dma_timer, bfin_sir_rx_dma_timeout, 0);
 #endif
 }
 
@@ -317,10 +319,12 @@ static void bfin_sir_dma_rx_chars(struct net_device *dev)
 		async_unwrap_char(dev, &self->stats, &self->rx_buff, port->rx_dma_buf.buf[i]);
 }
 
-void bfin_sir_rx_dma_timeout(struct net_device *dev)
+static void bfin_sir_rx_dma_timeout(struct timer_list *t)
 {
+	struct bfin_sir_port *port = from_timer(port, t, rx_dma_timer);
+	struct net_device *dev = port->dev;
 	struct bfin_sir_self *self = netdev_priv(dev);
-	struct bfin_sir_port *port = self->sir_port;
+
 	int x_pos, pos;
 	unsigned long flags;
 
@@ -405,8 +409,6 @@ static int bfin_sir_startup(struct bfin_sir_port *port, struct net_device *dev)
 	set_dma_start_addr(port->rx_dma_channel, (unsigned long)port->rx_dma_buf.buf);
 	enable_dma(port->rx_dma_channel);
 
-	port->rx_dma_timer.data = (unsigned long)(dev);
-	port->rx_dma_timer.function = (void *)bfin_sir_rx_dma_timeout;
 
 #else
 
diff --git a/drivers/staging/irda/drivers/esi-sir.c b/drivers/staging/irda/drivers/esi-sir.c
index 019a3e848bcb..eb7aa6430bea 100644
--- a/drivers/staging/irda/drivers/esi-sir.c
+++ b/drivers/staging/irda/drivers/esi-sir.c
@@ -1,5 +1,5 @@
 /*********************************************************************
- *                
+ *
  * Filename:      esi.c
  * Version:       1.6
  * Description:   Driver for the Extended Systems JetEye PC dongle
@@ -8,25 +8,25 @@
  * Created at:    Sat Feb 21 18:54:38 1998
  * Modified at:   Sun Oct 27 22:01:04 2002
  * Modified by:   Martin Diehl <mad@mdiehl.de>
- * 
+ *
  *     Copyright (c) 1999 Dag Brattli, <dagb@cs.uit.no>,
  *     Copyright (c) 1998 Thomas Davis, <ratbert@radiks.net>,
  *     Copyright (c) 2002 Martin Diehl, <mad@mdiehl.de>,
  *     All Rights Reserved.
- *     
- *     This program is free software; you can redistribute it and/or 
- *     modify it under the terms of the GNU General Public License as 
- *     published by the Free Software Foundation; either version 2 of 
+ *
+ *     This program is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License as
+ *     published by the Free Software Foundation; either version 2 of
  *     the License, or (at your option) any later version.
- * 
+ *
  *     This program is distributed in the hope that it will be useful,
  *     but WITHOUT ANY WARRANTY; without even the implied warranty of
  *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  *     GNU General Public License for more details.
- * 
- *     You should have received a copy of the GNU General Public License 
+ *
+ *     You should have received a copy of the GNU General Public License
  *     along with this program; if not, see <http://www.gnu.org/licenses/>.
- *     
+ *
  ********************************************************************/
 
 #include <linux/module.h>
@@ -97,7 +97,7 @@ static int esi_change_speed(struct sir_dev *dev, unsigned speed)
 {
 	int ret = 0;
 	int dtr, rts;
-	
+
 	switch (speed) {
 	case 19200:
 		dtr = TRUE;
diff --git a/drivers/staging/irda/drivers/irda-usb.c b/drivers/staging/irda/drivers/irda-usb.c
index 723e49bc4baa..bda6bdc6c70b 100644
--- a/drivers/staging/irda/drivers/irda-usb.c
+++ b/drivers/staging/irda/drivers/irda-usb.c
@@ -117,7 +117,7 @@ static void irda_usb_close(struct irda_usb_cb *self);
 static void speed_bulk_callback(struct urb *urb);
 static void write_bulk_callback(struct urb *urb);
 static void irda_usb_receive(struct urb *urb);
-static void irda_usb_rx_defer_expired(unsigned long data);
+static void irda_usb_rx_defer_expired(struct timer_list *t);
 static int irda_usb_net_open(struct net_device *dev);
 static int irda_usb_net_close(struct net_device *dev);
 static int irda_usb_net_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
@@ -334,9 +334,9 @@ static void irda_usb_change_speed_xbofs(struct irda_usb_cb *self)
 	urb->transfer_flags = 0;
 
 	/* Irq disabled -> GFP_ATOMIC */
-	if ((ret = usb_submit_urb(urb, GFP_ATOMIC))) {
+	ret = usb_submit_urb(urb, GFP_ATOMIC);
+	if (ret)
 		net_warn_ratelimited("%s(), failed Speed URB\n", __func__);
-	}
 }
 
 /*------------------------------------------------------------------*/
@@ -846,8 +846,7 @@ static void irda_usb_receive(struct urb *urb)
 		 * hot unplug of the dongle...
 		 * Lowest effective timer is 10ms...
 		 * Jean II */
-		self->rx_defer_timer.function = irda_usb_rx_defer_expired;
-		self->rx_defer_timer.data = (unsigned long) urb;
+		self->rx_defer_timer_urb = urb;
 		mod_timer(&self->rx_defer_timer,
 			  jiffies + msecs_to_jiffies(10));
 
@@ -953,20 +952,13 @@ done:
  * In case of errors, we want the USB layer to have time to recover.
  * Now, it is time to resubmit ouur Rx URB...
  */
-static void irda_usb_rx_defer_expired(unsigned long data)
+static void irda_usb_rx_defer_expired(struct timer_list *t)
 {
-	struct urb *urb = (struct urb *) data;
+	struct irda_usb_cb *self = from_timer(self, t, rx_defer_timer);
+	struct urb *urb = self->rx_defer_timer_urb;
 	struct sk_buff *skb = (struct sk_buff *) urb->context;
-	struct irda_usb_cb *self; 
-	struct irda_skb_cb *cb;
 	struct urb *next_urb;
 
-	/* Find ourselves */
-	cb = (struct irda_skb_cb *) skb->cb;
-	IRDA_ASSERT(cb != NULL, return;);
-	self = (struct irda_usb_cb *) cb->context;
-	IRDA_ASSERT(self != NULL, return;);
-
 	/* Same stuff as when Rx is done, see above... */
 	next_urb = self->idle_rx_urb;
 	urb->context = NULL;
@@ -1622,7 +1614,7 @@ static int irda_usb_probe(struct usb_interface *intf,
 	self = netdev_priv(net);
 	self->netdev = net;
 	spin_lock_init(&self->lock);
-	init_timer(&self->rx_defer_timer);
+	timer_setup(&self->rx_defer_timer, irda_usb_rx_defer_expired, 0);
 
 	self->capability = id->driver_info;
 	self->needspatch = ((self->capability & IUC_STIR421X) != 0);
diff --git a/drivers/staging/irda/drivers/irda-usb.h b/drivers/staging/irda/drivers/irda-usb.h
index 8ac389fa9348..56ee8c16c5e2 100644
--- a/drivers/staging/irda/drivers/irda-usb.h
+++ b/drivers/staging/irda/drivers/irda-usb.h
@@ -170,5 +170,6 @@ struct irda_usb_cb {
 	int needspatch;        		/* device needs firmware patch */
 
 	struct timer_list rx_defer_timer;	/* Wait for Rx error to clear */
+	struct urb *rx_defer_timer_urb;	/* URB attached to rx_defer_timer */
 };
 
diff --git a/drivers/staging/irda/drivers/mcs7780.c b/drivers/staging/irda/drivers/mcs7780.c
index c3f0b254b344..d52e9f4b9770 100644
--- a/drivers/staging/irda/drivers/mcs7780.c
+++ b/drivers/staging/irda/drivers/mcs7780.c
@@ -605,19 +605,22 @@ static int mcs_speed_change(struct mcs_cb *mcs)
 	if (mcs->new_speed <= 115200) {
 		rval &= ~MCS_FIR;
 
-		if ((rst = (mcs->speed > 115200)))
+		rst = mcs->speed > 115200;
+		if (rst)
 			mcs_set_reg(mcs, MCS_MINRXPW_REG, 0);
 
 	} else if (mcs->new_speed <= 1152000) {
 		rval &= ~MCS_FIR;
 
-		if ((rst = !(mcs->speed == 576000 || mcs->speed == 1152000)))
+		rst = !(mcs->speed == 576000 || mcs->speed == 1152000);
+		if (rst)
 			mcs_set_reg(mcs, MCS_MINRXPW_REG, 5);
 
 	} else {
 		rval |= MCS_FIR;
 
-		if ((rst = (mcs->speed != 4000000)))
+		rst = mcs->speed != 4000000;
+		if (rst)
 			mcs_set_reg(mcs, MCS_MINRXPW_REG, 5);
 
 	}
diff --git a/drivers/staging/irda/drivers/vlsi_ir.c b/drivers/staging/irda/drivers/vlsi_ir.c
index 6638784c082e..3dff3c55ddf5 100644
--- a/drivers/staging/irda/drivers/vlsi_ir.c
+++ b/drivers/staging/irda/drivers/vlsi_ir.c
@@ -170,10 +170,10 @@ static void vlsi_proc_pdev(struct seq_file *seq, struct pci_dev *pdev)
 	seq_printf(seq, "pci-power-state: %u\n", (unsigned) pdev->current_state);
 	seq_printf(seq, "resources: irq=%u / io=0x%04x / dma_mask=0x%016Lx\n",
 		   pdev->irq, (unsigned)pci_resource_start(pdev, 0), (unsigned long long)pdev->dma_mask);
-	seq_printf(seq, "hw registers: ");
+	seq_puts(seq, "hw registers: ");
 	for (i = 0; i < 0x20; i++)
 		seq_printf(seq, "%02x", (unsigned)inb((iobase+i)));
-	seq_printf(seq, "\n");
+	seq_putc(seq, '\n');
 }
 		
 static void vlsi_proc_ndev(struct seq_file *seq, struct net_device *ndev)
@@ -193,7 +193,7 @@ static void vlsi_proc_ndev(struct seq_file *seq, struct net_device *ndev)
 	if (!netif_running(ndev))
 		return;
 
-	seq_printf(seq, "\nhw-state:\n");
+	seq_puts(seq, "\nhw-state:\n");
 	pci_read_config_byte(idev->pdev, VLSI_PCI_IRMISC, &byte);
 	seq_printf(seq, "IRMISC:%s%s%s uart%s",
 		(byte&IRMISC_IRRAIL) ? " irrail" : "",
@@ -274,7 +274,7 @@ static void vlsi_proc_ndev(struct seq_file *seq, struct net_device *ndev)
 	word = inw(iobase+VLSI_PIO_RCVBCNT) & RCVBCNT_MASK;
 	seq_printf(seq, "RCVBCNT: rx-fifo filling level = %u\n", word);
 
-	seq_printf(seq, "\nsw-state:\n");
+	seq_puts(seq, "\nsw-state:\n");
 	seq_printf(seq, "IrPHY setup: %d baud - %s encoding\n", idev->baud, 
 		(idev->mode==IFF_SIR)?"SIR":((idev->mode==IFF_MIR)?"MIR":"FIR"));
 	sec = div_s64_rem(ktime_us_delta(ktime_get(), idev->last_rx),
@@ -305,10 +305,10 @@ static void vlsi_proc_ring(struct seq_file *seq, struct vlsi_ring *r)
 	t = atomic_read(&r->tail) & r->mask;
 	seq_printf(seq, "head = %d / tail = %d ", h, t);
 	if (h == t)
-		seq_printf(seq, "(empty)\n");
+		seq_puts(seq, "(empty)\n");
 	else {
 		if (((t+1)&r->mask) == h)
-			seq_printf(seq, "(full)\n");
+			seq_puts(seq, "(full)\n");
 		else
 			seq_printf(seq, "(level = %d)\n", ((unsigned)(t-h) & r->mask)); 
 		rd = &r->rd[h];
@@ -355,13 +355,13 @@ static int vlsi_seq_show(struct seq_file *seq, void *v)
 			seq_printf(seq, "\nPCI controller down - resume_ok = %d\n",
 				idev->resume_ok);
 		if (netif_running(ndev) && idev->rx_ring && idev->tx_ring) {
-			seq_printf(seq, "\n--------- RX ring -----------\n\n");
+			seq_puts(seq, "\n--------- RX ring -----------\n\n");
 			vlsi_proc_ring(seq, idev->rx_ring);
-			seq_printf(seq, "\n--------- TX ring -----------\n\n");
+			seq_puts(seq, "\n--------- TX ring -----------\n\n");
 			vlsi_proc_ring(seq, idev->tx_ring);
 		}
 	}
-	seq_printf(seq, "\n");
+	seq_putc(seq, '\n');
 	spin_unlock_irqrestore(&idev->lock, flags);
 
 	return 0;
diff --git a/drivers/staging/irda/include/net/irda/irlmp_event.h b/drivers/staging/irda/include/net/irda/irlmp_event.h
index 9e4ec17a7449..a1a082fe384e 100644
--- a/drivers/staging/irda/include/net/irda/irlmp_event.h
+++ b/drivers/staging/irda/include/net/irda/irlmp_event.h
@@ -82,9 +82,9 @@ typedef enum {
 extern const char *const irlmp_state[];
 extern const char *const irlsap_state[];
 
-void irlmp_watchdog_timer_expired(void *data);
-void irlmp_discovery_timer_expired(void *data);
-void irlmp_idle_timer_expired(void *data);
+void irlmp_watchdog_timer_expired(struct timer_list *t);
+void irlmp_discovery_timer_expired(struct timer_list *t);
+void irlmp_idle_timer_expired(struct timer_list *t);
 
 void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event, 
 			struct sk_buff *skb);
diff --git a/drivers/staging/irda/include/net/irda/qos.h b/drivers/staging/irda/include/net/irda/qos.h
index 05a5a249956f..a0315b50ac27 100644
--- a/drivers/staging/irda/include/net/irda/qos.h
+++ b/drivers/staging/irda/include/net/irda/qos.h
@@ -58,23 +58,23 @@
 #define IR_16000000 0x02
 
 /* Quality of Service information */
-typedef struct {
+struct qos_value {
 	__u32 value;
 	__u16 bits; /* LSB is first byte, MSB is second byte */
-} qos_value_t;
+};
 
 struct qos_info {
 	magic_t magic;
 
-	qos_value_t baud_rate;       /* IR_11520O | ... */
-	qos_value_t max_turn_time;
-	qos_value_t data_size;
-	qos_value_t window_size;
-	qos_value_t additional_bofs;
-	qos_value_t min_turn_time;
-	qos_value_t link_disc_time;
+	struct qos_value baud_rate;       /* IR_11520O | ... */
+	struct qos_value max_turn_time;
+	struct qos_value data_size;
+	struct qos_value window_size;
+	struct qos_value additional_bofs;
+	struct qos_value min_turn_time;
+	struct qos_value link_disc_time;
 	
-	qos_value_t power;
+	struct qos_value power;
 };
 
 extern int sysctl_max_baud_rate;
diff --git a/drivers/staging/irda/include/net/irda/timer.h b/drivers/staging/irda/include/net/irda/timer.h
index d784f242cf7b..a6635f0afae9 100644
--- a/drivers/staging/irda/include/net/irda/timer.h
+++ b/drivers/staging/irda/include/net/irda/timer.h
@@ -72,14 +72,11 @@ struct lap_cb;
 
 #define WATCHDOG_TIMEOUT        (20*HZ)       /* 20 sec */
 
-typedef void (*TIMER_CALLBACK)(void *);
-
-static inline void irda_start_timer(struct timer_list *ptimer, int timeout, 
-				    void* data, TIMER_CALLBACK callback)
+static inline void irda_start_timer(struct timer_list *ptimer, int timeout,
+				    void (*callback)(struct timer_list *))
 {
-	ptimer->function = (void (*)(unsigned long)) callback;
-	ptimer->data = (unsigned long) data;
-	
+	ptimer->function = (TIMER_FUNC_TYPE) callback;
+
 	/* Set new value for timer (update or add timer).
 	 * We use mod_timer() because it's more efficient and also
 	 * safer with respect to race conditions - Jean II */
diff --git a/drivers/staging/irda/net/af_irda.c b/drivers/staging/irda/net/af_irda.c
index 23fa7c8b09a5..b82a47b9ef0b 100644
--- a/drivers/staging/irda/net/af_irda.c
+++ b/drivers/staging/irda/net/af_irda.c
@@ -429,11 +429,11 @@ static void irda_selective_discovery_indication(discinfo_t *discovery,
  * We were waiting for a node to be discovered, but nothing has come up
  * so far. Wake up the user and tell him that we failed...
  */
-static void irda_discovery_timeout(u_long priv)
+static void irda_discovery_timeout(struct timer_list *t)
 {
 	struct irda_sock *self;
 
-	self = (struct irda_sock *) priv;
+	self = from_timer(self, t, watchdog);
 	BUG_ON(self == NULL);
 
 	/* Nothing for the caller */
@@ -2505,8 +2505,7 @@ bed:
 
 			/* Set watchdog timer to expire in <val> ms. */
 			self->errno = 0;
-			setup_timer(&self->watchdog, irda_discovery_timeout,
-					(unsigned long)self);
+			timer_setup(&self->watchdog, irda_discovery_timeout, 0);
 			mod_timer(&self->watchdog,
 				  jiffies + msecs_to_jiffies(val));
 
diff --git a/drivers/staging/irda/net/discovery.c b/drivers/staging/irda/net/discovery.c
index 364d70aed068..1e54954a4081 100644
--- a/drivers/staging/irda/net/discovery.c
+++ b/drivers/staging/irda/net/discovery.c
@@ -179,7 +179,7 @@ void irlmp_expire_discoveries(hashbin_t *log, __u32 saddr, int force)
 				/* Create the client specific buffer */
 				n = HASHBIN_GET_SIZE(log);
 				buffer = kmalloc(n * sizeof(struct irda_device_info), GFP_ATOMIC);
-				if (buffer == NULL) {
+				if (!buffer) {
 					spin_unlock_irqrestore(&log->hb_spinlock, flags);
 					return;
 				}
@@ -291,7 +291,7 @@ struct irda_device_info *irlmp_copy_discoveries(hashbin_t *log, int *pn,
 				/* Create the client specific buffer */
 				n = HASHBIN_GET_SIZE(log);
 				buffer = kmalloc(n * sizeof(struct irda_device_info), GFP_ATOMIC);
-				if (buffer == NULL) {
+				if (!buffer) {
 					spin_unlock_irqrestore(&log->hb_spinlock, flags);
 					return NULL;
 				}
diff --git a/drivers/staging/irda/net/ircomm/ircomm_tty.c b/drivers/staging/irda/net/ircomm/ircomm_tty.c
index ec157c3419b5..473abfaffe7b 100644
--- a/drivers/staging/irda/net/ircomm/ircomm_tty.c
+++ b/drivers/staging/irda/net/ircomm/ircomm_tty.c
@@ -395,7 +395,7 @@ static int ircomm_tty_install(struct tty_driver *driver, struct tty_struct *tty)
 		self->max_data_size = IRCOMM_TTY_DATA_UNINITIALISED;
 
 		/* Init some important stuff */
-		init_timer(&self->watchdog_timer);
+		timer_setup(&self->watchdog_timer, NULL, 0);
 		spin_lock_init(&self->spinlock);
 
 		/*
diff --git a/drivers/staging/irda/net/ircomm/ircomm_tty_attach.c b/drivers/staging/irda/net/ircomm/ircomm_tty_attach.c
index 0a411019c098..e2d5ce8ba0db 100644
--- a/drivers/staging/irda/net/ircomm/ircomm_tty_attach.c
+++ b/drivers/staging/irda/net/ircomm/ircomm_tty_attach.c
@@ -52,7 +52,7 @@ static void ircomm_tty_getvalue_confirm(int result, __u16 obj_id,
 					struct ias_value *value, void *priv);
 static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
 					    int timeout);
-static void ircomm_tty_watchdog_timer_expired(void *data);
+static void ircomm_tty_watchdog_timer_expired(struct timer_list *timer);
 
 static int ircomm_tty_state_idle(struct ircomm_tty_cb *self,
 				 IRCOMM_TTY_EVENT event,
@@ -587,7 +587,7 @@ static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
 
-	irda_start_timer(&self->watchdog_timer, timeout, (void *) self,
+	irda_start_timer(&self->watchdog_timer, timeout,
 			 ircomm_tty_watchdog_timer_expired);
 }
 
@@ -597,9 +597,9 @@ static void ircomm_tty_start_watchdog_timer(struct ircomm_tty_cb *self,
  *    Called when the connect procedure have taken to much time.
  *
  */
-static void ircomm_tty_watchdog_timer_expired(void *data)
+static void ircomm_tty_watchdog_timer_expired(struct timer_list *t)
 {
-	struct ircomm_tty_cb *self = (struct ircomm_tty_cb *) data;
+	struct ircomm_tty_cb *self = from_timer(self, t, watchdog_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == IRCOMM_TTY_MAGIC, return;);
diff --git a/drivers/staging/irda/net/irda_device.c b/drivers/staging/irda/net/irda_device.c
index 890b90d055d5..682b4eea15e0 100644
--- a/drivers/staging/irda/net/irda_device.c
+++ b/drivers/staging/irda/net/irda_device.c
@@ -54,29 +54,30 @@
 
 static void __irda_task_delete(struct irda_task *task);
 
-static hashbin_t *dongles = NULL;
-static hashbin_t *tasks = NULL;
+static hashbin_t *dongles;
+static hashbin_t *tasks;
 
-static void irda_task_timer_expired(void *data);
+static void irda_task_timer_expired(struct timer_list *timer);
 
-int __init irda_device_init( void)
+int __init irda_device_init(void)
 {
 	dongles = hashbin_new(HB_NOLOCK);
-	if (dongles == NULL) {
+	if (!dongles) {
 		net_warn_ratelimited("IrDA: Can't allocate dongles hashbin!\n");
 		return -ENOMEM;
 	}
 	spin_lock_init(&dongles->hb_spinlock);
 
 	tasks = hashbin_new(HB_LOCK);
-	if (tasks == NULL) {
+	if (!tasks) {
 		net_warn_ratelimited("IrDA: Can't allocate tasks hashbin!\n");
 		hashbin_delete(dongles, NULL);
 		return -ENOMEM;
 	}
 
 	/* We no longer initialise the driver ourselves here, we let
-	 * the system do it for us... - Jean II */
+	 * the system do it for us... - Jean II
+	 */
 
 	return 0;
 }
@@ -84,6 +85,7 @@ int __init irda_device_init( void)
 static void leftover_dongle(void *arg)
 {
 	struct dongle_reg *reg = arg;
+
 	net_warn_ratelimited("IrDA: Dongle type %x not unregistered\n",
 			     reg->type);
 }
@@ -107,7 +109,7 @@ void irda_device_set_media_busy(struct net_device *dev, int status)
 
 	pr_debug("%s(%s)\n", __func__, status ? "TRUE" : "FALSE");
 
-	self = (struct irlap_cb *) dev->atalk_ptr;
+	self = (struct irlap_cb *)dev->atalk_ptr;
 
 	/* Some drivers may enable the receive interrupt before calling
 	 * irlap_open(), or they may disable the receive interrupt
@@ -115,7 +117,8 @@ void irda_device_set_media_busy(struct net_device *dev, int status)
 	 * The IrDA stack is protected from this in irlap_driver_rcv().
 	 * However, the driver calls directly the wrapper, that calls
 	 * us directly. Make sure we protect ourselves.
-	 * Jean II */
+	 * Jean II
+	 */
 	if (!self || self->magic != LAP_MAGIC)
 		return;
 
@@ -133,7 +136,6 @@ void irda_device_set_media_busy(struct net_device *dev, int status)
 }
 EXPORT_SYMBOL(irda_device_set_media_busy);
 
-
 /*
  * Function irda_device_is_receiving (dev)
  *
@@ -169,7 +171,7 @@ static void __irda_task_delete(struct irda_task *task)
 static void irda_task_delete(struct irda_task *task)
 {
 	/* Unregister task */
-	hashbin_remove(tasks, (long) task, NULL);
+	hashbin_remove(tasks, (long)task, NULL);
 
 	__irda_task_delete(task);
 }
@@ -231,7 +233,7 @@ static int irda_task_kick(struct irda_task *task)
 		}
 		irda_task_delete(task);
 	} else if (timeout > 0) {
-		irda_start_timer(&task->timer, timeout, (void *) task,
+		irda_start_timer(&task->timer, timeout,
 				 irda_task_timer_expired);
 		finished = FALSE;
 	} else {
@@ -249,11 +251,9 @@ static int irda_task_kick(struct irda_task *task)
  *    Task time has expired. We now try to execute task (again), and restart
  *    the timer if the task has not finished yet
  */
-static void irda_task_timer_expired(void *data)
+static void irda_task_timer_expired(struct timer_list *t)
 {
-	struct irda_task *task;
-
-	task = data;
+	struct irda_task *task = from_timer(task, t, timer);
 
 	irda_task_kick(task);
 }
@@ -280,8 +280,8 @@ static void irda_device_setup(struct net_device *dev)
 
 /*
  * Funciton  alloc_irdadev
- * 	Allocates and sets up an IRDA device in a manner similar to
- * 	alloc_etherdev.
+ *      Allocates and sets up an IRDA device in a manner similar to
+ *      alloc_etherdev.
  */
 struct net_device *alloc_irdadev(int sizeof_priv)
 {
diff --git a/drivers/staging/irda/net/iriap.c b/drivers/staging/irda/net/iriap.c
index 1138eaf5c682..d64192e9db8b 100644
--- a/drivers/staging/irda/net/iriap.c
+++ b/drivers/staging/irda/net/iriap.c
@@ -76,12 +76,12 @@ static void iriap_connect_confirm(void *instance, void *sap,
 static int iriap_data_indication(void *instance, void *sap,
 				 struct sk_buff *skb);
 
-static void iriap_watchdog_timer_expired(void *data);
+static void iriap_watchdog_timer_expired(struct timer_list *t);
 
 static inline void iriap_start_watchdog_timer(struct iriap_cb *self,
 					      int timeout)
 {
-	irda_start_timer(&self->watchdog_timer, timeout, self,
+	irda_start_timer(&self->watchdog_timer, timeout,
 			 iriap_watchdog_timer_expired);
 }
 
@@ -199,7 +199,7 @@ struct iriap_cb *iriap_open(__u8 slsap_sel, int mode, void *priv,
 	 * we connect, so this must have a sane value... Jean II */
 	self->max_header_size = LMP_MAX_HEADER;
 
-	init_timer(&self->watchdog_timer);
+	timer_setup(&self->watchdog_timer, NULL, 0);
 
 	hashbin_insert(iriap, (irda_queue_t *) self, (long) self, NULL);
 
@@ -946,9 +946,9 @@ void iriap_call_indication(struct iriap_cb *self, struct sk_buff *skb)
  *    Query has taken too long time, so abort
  *
  */
-static void iriap_watchdog_timer_expired(void *data)
+static void iriap_watchdog_timer_expired(struct timer_list *t)
 {
-	struct iriap_cb *self = (struct iriap_cb *) data;
+	struct iriap_cb *self = from_timer(self, t, watchdog_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == IAS_MAGIC, return;);
diff --git a/drivers/staging/irda/net/irlan/irlan_client.c b/drivers/staging/irda/net/irlan/irlan_client.c
index c5837a40c78e..0b65e80849ae 100644
--- a/drivers/staging/irda/net/irlan/irlan_client.c
+++ b/drivers/staging/irda/net/irlan/irlan_client.c
@@ -68,9 +68,9 @@ static void irlan_check_response_param(struct irlan_cb *self, char *param,
 				       char *value, int val_len);
 static void irlan_client_open_ctrl_tsap(struct irlan_cb *self);
 
-static void irlan_client_kick_timer_expired(void *data)
+static void irlan_client_kick_timer_expired(struct timer_list *t)
 {
-	struct irlan_cb *self = (struct irlan_cb *) data;
+	struct irlan_cb *self = from_timer(self, t, client.kick_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == IRLAN_MAGIC, return;);
@@ -89,7 +89,7 @@ static void irlan_client_kick_timer_expired(void *data)
 
 static void irlan_client_start_kick_timer(struct irlan_cb *self, int timeout)
 {
-	irda_start_timer(&self->client.kick_timer, timeout, (void *) self,
+	irda_start_timer(&self->client.kick_timer, timeout,
 			 irlan_client_kick_timer_expired);
 }
 
diff --git a/drivers/staging/irda/net/irlan/irlan_common.c b/drivers/staging/irda/net/irlan/irlan_common.c
index 481bbc2a4349..fdcd7147007d 100644
--- a/drivers/staging/irda/net/irlan/irlan_common.c
+++ b/drivers/staging/irda/net/irlan/irlan_common.c
@@ -228,8 +228,8 @@ static struct irlan_cb __init *irlan_open(__u32 saddr, __u32 daddr)
 
 	self->media = MEDIA_802_3;
 	self->disconnect_reason = LM_USER_REQUEST;
-	init_timer(&self->watchdog_timer);
-	init_timer(&self->client.kick_timer);
+	timer_setup(&self->watchdog_timer, NULL, 0);
+	timer_setup(&self->client.kick_timer, NULL, 0);
 	init_waitqueue_head(&self->open_wait);
 
 	skb_queue_head_init(&self->client.txq);
diff --git a/drivers/staging/irda/net/irlap.c b/drivers/staging/irda/net/irlap.c
index 1cde711bcab5..d7d894423b4f 100644
--- a/drivers/staging/irda/net/irlap.c
+++ b/drivers/staging/irda/net/irlap.c
@@ -148,14 +148,14 @@ struct irlap_cb *irlap_open(struct net_device *dev, struct qos_info *qos,
 	/* Copy to the driver */
 	memcpy(dev->dev_addr, &self->saddr, 4);
 
-	init_timer(&self->slot_timer);
-	init_timer(&self->query_timer);
-	init_timer(&self->discovery_timer);
-	init_timer(&self->final_timer);
-	init_timer(&self->poll_timer);
-	init_timer(&self->wd_timer);
-	init_timer(&self->backoff_timer);
-	init_timer(&self->media_busy_timer);
+	timer_setup(&self->slot_timer, NULL, 0);
+	timer_setup(&self->query_timer, NULL, 0);
+	timer_setup(&self->discovery_timer, NULL, 0);
+	timer_setup(&self->final_timer, NULL, 0);
+	timer_setup(&self->poll_timer, NULL, 0);
+	timer_setup(&self->wd_timer, NULL, 0);
+	timer_setup(&self->backoff_timer, NULL, 0);
+	timer_setup(&self->media_busy_timer, NULL, 0);
 
 	irlap_apply_default_connection_parameters(self);
 
diff --git a/drivers/staging/irda/net/irlap_event.c b/drivers/staging/irda/net/irlap_event.c
index 0e1b4d79f745..634188b07e0a 100644
--- a/drivers/staging/irda/net/irlap_event.c
+++ b/drivers/staging/irda/net/irlap_event.c
@@ -163,9 +163,9 @@ static int (*state[])(struct irlap_cb *self, IRLAP_EVENT event,
  *    Poll timer has expired. Normally we must now send a RR frame to the
  *    remote device
  */
-static void irlap_poll_timer_expired(void *data)
+static void irlap_poll_timer_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, poll_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
@@ -222,7 +222,7 @@ static void irlap_start_poll_timer(struct irlap_cb *self, int timeout)
 	if (timeout == 0)
 		irlap_do_event(self, POLL_TIMER_EXPIRED, NULL, NULL);
 	else
-		irda_start_timer(&self->poll_timer, timeout, self,
+		irda_start_timer(&self->poll_timer, timeout,
 				 irlap_poll_timer_expired);
 }
 
diff --git a/drivers/staging/irda/net/irlmp.c b/drivers/staging/irda/net/irlmp.c
index 43964594aa12..34355061ab0b 100644
--- a/drivers/staging/irda/net/irlmp.c
+++ b/drivers/staging/irda/net/irlmp.c
@@ -109,7 +109,7 @@ int __init irlmp_init(void)
 	irlmp->last_lsap_sel = 0x0f; /* Reserved 0x00-0x0f */
 	strcpy(sysctl_devname, "Linux");
 
-	init_timer(&irlmp->discovery_timer);
+	timer_setup(&irlmp->discovery_timer, NULL, 0);
 
 	/* Do discovery every 3 seconds, conditionally */
 	if (sysctl_discovery)
@@ -185,7 +185,7 @@ struct lsap_cb *irlmp_open_lsap(__u8 slsap_sel, notify_t *notify, __u8 pid)
 		self->dlsap_sel = LSAP_ANY;
 	/* self->connected = FALSE; -> already NULL via memset() */
 
-	init_timer(&self->watchdog_timer);
+	timer_setup(&self->watchdog_timer, NULL, 0);
 
 	self->notify = *notify;
 
@@ -311,7 +311,7 @@ void irlmp_register_link(struct irlap_cb *irlap, __u32 saddr, notify_t *notify)
 
 	lap->lap_state = LAP_STANDBY;
 
-	init_timer(&lap->idle_timer);
+	timer_setup(&lap->idle_timer, NULL, 0);
 
 	/*
 	 *  Insert into queue of LMP links
@@ -655,7 +655,7 @@ struct lsap_cb *irlmp_dup(struct lsap_cb *orig, void *instance)
 	/* Not everything is the same */
 	new->notify.instance = instance;
 
-	init_timer(&new->watchdog_timer);
+	timer_setup(&new->watchdog_timer, NULL, 0);
 
 	hashbin_insert(irlmp->unconnected_lsaps, (irda_queue_t *) new,
 		       (long) new, NULL);
diff --git a/drivers/staging/irda/net/irlmp_event.c b/drivers/staging/irda/net/irlmp_event.c
index e306cf2c1e04..ddad0994b6dc 100644
--- a/drivers/staging/irda/net/irlmp_event.c
+++ b/drivers/staging/irda/net/irlmp_event.c
@@ -165,7 +165,7 @@ void irlmp_do_lap_event(struct lap_cb *self, IRLMP_EVENT event,
 	(*lap_state[self->lap_state]) (self, event, skb);
 }
 
-void irlmp_discovery_timer_expired(void *data)
+void irlmp_discovery_timer_expired(struct timer_list *t)
 {
 	/* We always cleanup the log (active & passive discovery) */
 	irlmp_do_expiry();
@@ -176,9 +176,9 @@ void irlmp_discovery_timer_expired(void *data)
 	irlmp_start_discovery_timer(irlmp, sysctl_discovery_timeout * HZ);
 }
 
-void irlmp_watchdog_timer_expired(void *data)
+void irlmp_watchdog_timer_expired(struct timer_list *t)
 {
-	struct lsap_cb *self = (struct lsap_cb *) data;
+	struct lsap_cb *self = from_timer(self, t, watchdog_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LMP_LSAP_MAGIC, return;);
@@ -186,9 +186,9 @@ void irlmp_watchdog_timer_expired(void *data)
 	irlmp_do_lsap_event(self, LM_WATCHDOG_TIMEOUT, NULL);
 }
 
-void irlmp_idle_timer_expired(void *data)
+void irlmp_idle_timer_expired(struct timer_list *t)
 {
-	struct lap_cb *self = (struct lap_cb *) data;
+	struct lap_cb *self = from_timer(self, t, idle_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LMP_LAP_MAGIC, return;);
diff --git a/drivers/staging/irda/net/irqueue.c b/drivers/staging/irda/net/irqueue.c
index 160dc89335e2..14291cbc4097 100644
--- a/drivers/staging/irda/net/irqueue.c
+++ b/drivers/staging/irda/net/irqueue.c
@@ -217,7 +217,8 @@ static __u32 hash( const char* name)
 
 	while(*name) {
 		h = (h<<4) + *name++;
-		if ((g = (h & 0xf0000000)))
+		g = h & 0xf0000000;
+		if (g)
 			h ^=g>>24;
 		h &=~g;
 	}
diff --git a/drivers/staging/irda/net/irttp.c b/drivers/staging/irda/net/irttp.c
index b6ab41d5b3a3..741a94f39b4e 100644
--- a/drivers/staging/irda/net/irttp.c
+++ b/drivers/staging/irda/net/irttp.c
@@ -62,7 +62,6 @@ static void irttp_run_rx_queue(struct tsap_cb *self);
 static void irttp_flush_queues(struct tsap_cb *self);
 static void irttp_fragment_skb(struct tsap_cb *self, struct sk_buff *skb);
 static struct sk_buff *irttp_reassemble_skb(struct tsap_cb *self);
-static void irttp_todo_expired(unsigned long data);
 static int irttp_param_max_sdu_size(void *instance, irda_param_t *param,
 				    int get);
 
@@ -160,9 +159,9 @@ static inline void irttp_start_todo_timer(struct tsap_cb *self, int timeout)
  * killed (need user context), and we can't guarantee that here...
  * Jean II
  */
-static void irttp_todo_expired(unsigned long data)
+static void irttp_todo_expired(struct timer_list *t)
 {
-	struct tsap_cb *self = (struct tsap_cb *) data;
+	struct tsap_cb *self = from_timer(self, t, todo_timer);
 
 	/* Check that we still exist */
 	if (!self || self->magic != TTP_TSAP_MAGIC)
@@ -374,7 +373,7 @@ static int irttp_param_max_sdu_size(void *instance, irda_param_t *param,
 static void irttp_init_tsap(struct tsap_cb *tsap)
 {
 	spin_lock_init(&tsap->lock);
-	init_timer(&tsap->todo_timer);
+	timer_setup(&tsap->todo_timer, irttp_todo_expired, 0);
 
 	skb_queue_head_init(&tsap->rx_queue);
 	skb_queue_head_init(&tsap->tx_queue);
@@ -410,10 +409,6 @@ struct tsap_cb *irttp_open_tsap(__u8 stsap_sel, int credit, notify_t *notify)
 	/* Initialize internal objects */
 	irttp_init_tsap(self);
 
-	/* Initialise todo timer */
-	self->todo_timer.data     = (unsigned long) self;
-	self->todo_timer.function = &irttp_todo_expired;
-
 	/* Initialize callbacks for IrLMP to use */
 	irda_notify_init(&ttp_notify);
 	ttp_notify.connect_confirm = irttp_connect_confirm;
diff --git a/drivers/staging/irda/net/timer.c b/drivers/staging/irda/net/timer.c
index f2280f73b057..cf00c0d848aa 100644
--- a/drivers/staging/irda/net/timer.c
+++ b/drivers/staging/irda/net/timer.c
@@ -34,16 +34,16 @@
 
 extern int  sysctl_slot_timeout;
 
-static void irlap_slot_timer_expired(void* data);
-static void irlap_query_timer_expired(void* data);
-static void irlap_final_timer_expired(void* data);
-static void irlap_wd_timer_expired(void* data);
-static void irlap_backoff_timer_expired(void* data);
-static void irlap_media_busy_expired(void* data);
+static void irlap_slot_timer_expired(struct timer_list *t);
+static void irlap_query_timer_expired(struct timer_list *t);
+static void irlap_final_timer_expired(struct timer_list *t);
+static void irlap_wd_timer_expired(struct timer_list *t);
+static void irlap_backoff_timer_expired(struct timer_list *t);
+static void irlap_media_busy_expired(struct timer_list *t);
 
 void irlap_start_slot_timer(struct irlap_cb *self, int timeout)
 {
-	irda_start_timer(&self->slot_timer, timeout, (void *) self,
+	irda_start_timer(&self->slot_timer, timeout,
 			 irlap_slot_timer_expired);
 }
 
@@ -66,32 +66,32 @@ void irlap_start_query_timer(struct irlap_cb *self, int S, int s)
 	/* Set or re-set the timer. We reset the timer for each received
 	 * discovery query, which allow us to automatically adjust to
 	 * the speed of the peer discovery (faster or slower). Jean II */
-	irda_start_timer( &self->query_timer, timeout, (void *) self,
+	irda_start_timer(&self->query_timer, timeout,
 			  irlap_query_timer_expired);
 }
 
 void irlap_start_final_timer(struct irlap_cb *self, int timeout)
 {
-	irda_start_timer(&self->final_timer, timeout, (void *) self,
+	irda_start_timer(&self->final_timer, timeout,
 			 irlap_final_timer_expired);
 }
 
 void irlap_start_wd_timer(struct irlap_cb *self, int timeout)
 {
-	irda_start_timer(&self->wd_timer, timeout, (void *) self,
+	irda_start_timer(&self->wd_timer, timeout,
 			 irlap_wd_timer_expired);
 }
 
 void irlap_start_backoff_timer(struct irlap_cb *self, int timeout)
 {
-	irda_start_timer(&self->backoff_timer, timeout, (void *) self,
+	irda_start_timer(&self->backoff_timer, timeout,
 			 irlap_backoff_timer_expired);
 }
 
 void irlap_start_mbusy_timer(struct irlap_cb *self, int timeout)
 {
 	irda_start_timer(&self->media_busy_timer, timeout,
-			 (void *) self, irlap_media_busy_expired);
+			 irlap_media_busy_expired);
 }
 
 void irlap_stop_mbusy_timer(struct irlap_cb *self)
@@ -110,19 +110,19 @@ void irlap_stop_mbusy_timer(struct irlap_cb *self)
 
 void irlmp_start_watchdog_timer(struct lsap_cb *self, int timeout)
 {
-	irda_start_timer(&self->watchdog_timer, timeout, (void *) self,
+	irda_start_timer(&self->watchdog_timer, timeout,
 			 irlmp_watchdog_timer_expired);
 }
 
 void irlmp_start_discovery_timer(struct irlmp_cb *self, int timeout)
 {
-	irda_start_timer(&self->discovery_timer, timeout, (void *) self,
+	irda_start_timer(&self->discovery_timer, timeout,
 			 irlmp_discovery_timer_expired);
 }
 
 void irlmp_start_idle_timer(struct lap_cb *self, int timeout)
 {
-	irda_start_timer(&self->idle_timer, timeout, (void *) self,
+	irda_start_timer(&self->idle_timer, timeout,
 			 irlmp_idle_timer_expired);
 }
 
@@ -138,9 +138,9 @@ void irlmp_stop_idle_timer(struct lap_cb *self)
  *    IrLAP slot timer has expired
  *
  */
-static void irlap_slot_timer_expired(void *data)
+static void irlap_slot_timer_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, slot_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
@@ -154,9 +154,9 @@ static void irlap_slot_timer_expired(void *data)
  *    IrLAP query timer has expired
  *
  */
-static void irlap_query_timer_expired(void *data)
+static void irlap_query_timer_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, query_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
@@ -170,9 +170,9 @@ static void irlap_query_timer_expired(void *data)
  *
  *
  */
-static void irlap_final_timer_expired(void *data)
+static void irlap_final_timer_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, final_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
@@ -186,9 +186,9 @@ static void irlap_final_timer_expired(void *data)
  *
  *
  */
-static void irlap_wd_timer_expired(void *data)
+static void irlap_wd_timer_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, wd_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
@@ -202,9 +202,9 @@ static void irlap_wd_timer_expired(void *data)
  *
  *
  */
-static void irlap_backoff_timer_expired(void *data)
+static void irlap_backoff_timer_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, backoff_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 	IRDA_ASSERT(self->magic == LAP_MAGIC, return;);
@@ -218,9 +218,9 @@ static void irlap_backoff_timer_expired(void *data)
  *
  *
  */
-static void irlap_media_busy_expired(void *data)
+static void irlap_media_busy_expired(struct timer_list *t)
 {
-	struct irlap_cb *self = (struct irlap_cb *) data;
+	struct irlap_cb *self = from_timer(self, t, media_busy_timer);
 
 	IRDA_ASSERT(self != NULL, return;);
 
diff --git a/drivers/staging/ks7010/eap_packet.h b/drivers/staging/ks7010/eap_packet.h
index ae03f7477324..dca2a142e834 100644
--- a/drivers/staging/ks7010/eap_packet.h
+++ b/drivers/staging/ks7010/eap_packet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef EAP_PACKET_H
 #define EAP_PACKET_H
 
diff --git a/drivers/staging/ks7010/ks_wlan_net.c b/drivers/staging/ks7010/ks_wlan_net.c
index 0f9348ba5d84..880085e2f24a 100644
--- a/drivers/staging/ks7010/ks_wlan_net.c
+++ b/drivers/staging/ks7010/ks_wlan_net.c
@@ -114,7 +114,7 @@ int ks_wlan_update_phy_information(struct ks_wlan_private *priv)
 }
 
 static
-void ks_wlan_update_phyinfo_timeout(unsigned long ptr)
+void ks_wlan_update_phyinfo_timeout(struct timer_list *unused)
 {
 	DPRINTK(4, "in_interrupt = %ld\n", in_interrupt());
 	atomic_set(&update_phyinfo, 0);
@@ -473,13 +473,16 @@ static int ks_wlan_set_rate(struct net_device *dev,
 					priv->reg.rate_set.body[3] =
 					    TX_RATE_11M;
 					i++;
+					/* fall through */
 				case 5500000:
 					priv->reg.rate_set.body[2] = TX_RATE_5M;
 					i++;
+					/* fall through */
 				case 2000000:
 					priv->reg.rate_set.body[1] =
 					    TX_RATE_2M | BASIC_RATE;
 					i++;
+					/* fall through */
 				case 1000000:
 					priv->reg.rate_set.body[0] =
 					    TX_RATE_1M | BASIC_RATE;
@@ -535,14 +538,17 @@ static int ks_wlan_set_rate(struct net_device *dev,
 					priv->reg.rate_set.body[11] =
 					    TX_RATE_54M;
 					i++;
+					/* fall through */
 				case 48000000:
 					priv->reg.rate_set.body[10] =
 					    TX_RATE_48M;
 					i++;
+					/* fall through */
 				case 36000000:
 					priv->reg.rate_set.body[9] =
 					    TX_RATE_36M;
 					i++;
+					/* fall through */
 				case 24000000:
 				case 18000000:
 				case 12000000:
@@ -619,14 +625,17 @@ static int ks_wlan_set_rate(struct net_device *dev,
 						    TX_RATE_6M | BASIC_RATE;
 						i++;
 					}
+					/* fall through */
 				case 5500000:
 					priv->reg.rate_set.body[2] =
 					    TX_RATE_5M | BASIC_RATE;
 					i++;
+					/* fall through */
 				case 2000000:
 					priv->reg.rate_set.body[1] =
 					    TX_RATE_2M | BASIC_RATE;
 					i++;
+					/* fall through */
 				case 1000000:
 					priv->reg.rate_set.body[0] =
 					    TX_RATE_1M | BASIC_RATE;
@@ -2010,6 +2019,7 @@ static int ks_wlan_set_mlme(struct net_device *dev,
 	case IW_MLME_DEAUTH:
 		if (mlme->reason_code == WLAN_REASON_MIC_FAILURE)
 			return 0;
+		/* fall through */
 	case IW_MLME_DISASSOC:
 		mode = 1;
 		return ks_wlan_set_stop_request(dev, NULL, &mode, NULL);
@@ -2941,8 +2951,7 @@ int ks_wlan_net_start(struct net_device *dev)
 
 	/* phy information update timer */
 	atomic_set(&update_phyinfo, 0);
-	setup_timer(&update_phyinfo_timer, ks_wlan_update_phyinfo_timeout,
-		    (unsigned long)priv);
+	timer_setup(&update_phyinfo_timer, ks_wlan_update_phyinfo_timeout, 0);
 
 	/* dummy address set */
 	memcpy(priv->eth_addr, dummy_addr, ETH_ALEN);
diff --git a/drivers/staging/lustre/include/linux/libcfs/curproc.h b/drivers/staging/lustre/include/linux/libcfs/curproc.h
index 1ea27c9e3708..3cb3f086148e 100644
--- a/drivers/staging/lustre/include/linux/libcfs/curproc.h
+++ b/drivers/staging/lustre/include/linux/libcfs/curproc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
index b48e2f093bcc..6ad8867e5451 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
index 6d8752a368fa..6d132f941281 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_cpu.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
index 3f773a4a344b..e5c156e9d907 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_crypto.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
index e7c37415a0c7..1b98f0953afb 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h
index fedb46dff696..d6fc3164e7e7 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_fail.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index 0cc2fc465c1a..5a27220cc608 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h
index 8c75d5075590..d4c5965c43b1 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_prim.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
index 709771d27f89..2f4ff595fac9 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_private.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
index 41795d9b3b9b..1191764c431a 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_string.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h
index 008da4497bda..9699646decb9 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_time.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h
index 2accd9a85472..fc780f608e57 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_workitem.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
index fa0808d2953b..30e333af8d0d 100644
--- a/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
+++ b/drivers/staging/lustre/include/linux/libcfs/linux/libcfs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
index dd0cd0442b86..854c84358ab4 100644
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
+++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-cpu.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h b/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h
index 709e1ce98d8d..aece13698eb4 100644
--- a/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h
+++ b/drivers/staging/lustre/include/linux/libcfs/linux/linux-time.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/lnet/api.h b/drivers/staging/lustre/include/linux/lnet/api.h
index 9c37f3e4b134..31fcd33171b4 100644
--- a/drivers/staging/lustre/include/linux/lnet/api.h
+++ b/drivers/staging/lustre/include/linux/lnet/api.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
index e0968ab8d95e..c1626726fa05 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-types.h b/drivers/staging/lustre/include/linux/lnet/lib-types.h
index eea3b8e5e406..cfe8ee424e94 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-types.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-types.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -160,9 +161,9 @@ struct lnet_libmd {
 	} md_iov;
 };
 
-#define LNET_MD_FLAG_ZOMBIE		(1 << 0)
-#define LNET_MD_FLAG_AUTO_UNLINK	(1 << 1)
-#define LNET_MD_FLAG_ABORTED		(1 << 2)
+#define LNET_MD_FLAG_ZOMBIE		BIT(0)
+#define LNET_MD_FLAG_AUTO_UNLINK	BIT(1)
+#define LNET_MD_FLAG_ABORTED		BIT(2)
 
 struct lnet_test_peer {
 	/* info about peers we are trying to fail */
@@ -287,9 +288,9 @@ struct lnet_ni {
  * of old LNet, so there shouldn't be any compatibility issue
  */
 #define LNET_PING_FEAT_INVAL		(0)		/* no feature */
-#define LNET_PING_FEAT_BASE		(1 << 0)	/* just a ping */
-#define LNET_PING_FEAT_NI_STATUS	(1 << 1)	/* return NI status */
-#define LNET_PING_FEAT_RTE_DISABLED	(1 << 2)	/* Routing enabled */
+#define LNET_PING_FEAT_BASE		BIT(0)	/* just a ping */
+#define LNET_PING_FEAT_NI_STATUS	BIT(1)	/* return NI status */
+#define LNET_PING_FEAT_RTE_DISABLED	BIT(2)	/* Routing enabled */
 
 #define LNET_PING_FEAT_MASK		(LNET_PING_FEAT_BASE | \
 					 LNET_PING_FEAT_NI_STATUS)
@@ -440,23 +441,21 @@ struct lnet_rtrbuf {
 
 enum lnet_match_flags {
 	/* Didn't match anything */
-	LNET_MATCHMD_NONE	= (1 << 0),
+	LNET_MATCHMD_NONE	= BIT(0),
 	/* Matched OK */
-	LNET_MATCHMD_OK		= (1 << 1),
+	LNET_MATCHMD_OK		= BIT(1),
 	/* Must be discarded */
-	LNET_MATCHMD_DROP	= (1 << 2),
+	LNET_MATCHMD_DROP	= BIT(2),
 	/* match and buffer is exhausted */
-	LNET_MATCHMD_EXHAUSTED	= (1 << 3),
+	LNET_MATCHMD_EXHAUSTED	= BIT(3),
 	/* match or drop */
 	LNET_MATCHMD_FINISH	= (LNET_MATCHMD_OK | LNET_MATCHMD_DROP),
 };
 
 /* Options for lnet_portal::ptl_options */
-#define LNET_PTL_LAZY		(1 << 0)
-#define LNET_PTL_MATCH_UNIQUE	(1 << 1)	/* unique match, for RDMA */
-#define LNET_PTL_MATCH_WILDCARD	(1 << 2)	/* wildcard match,
-						 * request portal
-						 */
+#define LNET_PTL_LAZY		BIT(0)
+#define LNET_PTL_MATCH_UNIQUE	BIT(1)	/* unique match, for RDMA */
+#define LNET_PTL_MATCH_WILDCARD	BIT(2)	/* wildcard match, request portal */
 
 /* parameter for matching operations (GET, PUT) */
 struct lnet_match_info {
diff --git a/drivers/staging/lustre/include/linux/lnet/socklnd.h b/drivers/staging/lustre/include/linux/lnet/socklnd.h
index 553fb64b3e80..6bd1bca190a3 100644
--- a/drivers/staging/lustre/include/linux/lnet/socklnd.h
+++ b/drivers/staging/lustre/include/linux/lnet/socklnd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
index 64763aacda57..8024843521ab 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
index a1e994a1cc84..171eced213f8 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
index 8fc191d99927..40e3af5d8b04 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_cb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
index 3fe4d4858eba..a71b765215ad 100644
--- a/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
+++ b/drivers/staging/lustre/lnet/klnds/o2iblnd/o2iblnd_modparams.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
index fbbd8a5489e9..f8ea523863ba 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -176,12 +177,9 @@ struct ksock_peer *
 ksocknal_find_peer_locked(struct lnet_ni *ni, struct lnet_process_id id)
 {
 	struct list_head *peer_list = ksocknal_nid2peerlist(id.nid);
-	struct list_head *tmp;
 	struct ksock_peer *peer;
 
-	list_for_each(tmp, peer_list) {
-		peer = list_entry(tmp, struct ksock_peer, ksnp_list);
-
+	list_for_each_entry(peer, peer_list, ksnp_list) {
 		LASSERT(!peer->ksnp_closing);
 
 		if (peer->ksnp_ni != ni)
@@ -453,7 +451,6 @@ int
 ksocknal_add_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ipaddr,
 		  int port)
 {
-	struct list_head *tmp;
 	struct ksock_peer *peer;
 	struct ksock_peer *peer2;
 	struct ksock_route *route;
@@ -491,9 +488,7 @@ ksocknal_add_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ipaddr,
 	}
 
 	route2 = NULL;
-	list_for_each(tmp, &peer->ksnp_routes) {
-		route2 = list_entry(tmp, struct ksock_route, ksnr_list);
-
+	list_for_each_entry(route2, &peer->ksnp_routes, ksnr_list) {
 		if (route2->ksnr_ipaddr == ipaddr)
 			break;
 
@@ -1854,12 +1849,10 @@ ksocknal_query(struct lnet_ni *ni, lnet_nid_t nid, unsigned long *when)
 
 	peer = ksocknal_find_peer_locked(ni, id);
 	if (peer) {
-		struct list_head *tmp;
 		struct ksock_conn *conn;
 		int bufnob;
 
-		list_for_each(tmp, &peer->ksnp_conns) {
-			conn = list_entry(tmp, struct ksock_conn, ksnc_list);
+		list_for_each_entry(conn, &peer->ksnp_conns, ksnc_list) {
 			bufnob = conn->ksnc_sock->sk->sk_wmem_queued;
 
 			if (bufnob < conn->ksnc_tx_bufnob) {
@@ -2316,7 +2309,7 @@ ksocknal_base_shutdown(void)
 	switch (ksocknal_data.ksnd_init) {
 	default:
 		LASSERT(0);
-
+		/* fall through */
 	case SOCKNAL_INIT_ALL:
 	case SOCKNAL_INIT_DATA:
 		LASSERT(ksocknal_data.ksnd_peers);
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
index e6428c4b7aec..35a7b396def4 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  *
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
index 6b38d5a8fe92..a5f2ecb966fa 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_cb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  *
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
index 9c328dc6537b..970140f09258 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
index fc7eec83ac07..5663a4ca94d4 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_modparams.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  *
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
index 84be9a518190..d827f770e831 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd_proto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved.
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/Makefile b/drivers/staging/lustre/lnet/libcfs/Makefile
index 215fa23827d1..1607570ef8de 100644
--- a/drivers/staging/lustre/lnet/libcfs/Makefile
+++ b/drivers/staging/lustre/lnet/libcfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/include
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
diff --git a/drivers/staging/lustre/lnet/libcfs/debug.c b/drivers/staging/lustre/lnet/libcfs/debug.c
index 1ab394c1fabc..551c45bf4108 100644
--- a/drivers/staging/lustre/lnet/libcfs/debug.c
+++ b/drivers/staging/lustre/lnet/libcfs/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/fail.c b/drivers/staging/lustre/lnet/libcfs/fail.c
index 24f4701a7a1e..5d501beeb622 100644
--- a/drivers/staging/lustre/lnet/libcfs/fail.c
+++ b/drivers/staging/lustre/lnet/libcfs/fail.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/hash.c b/drivers/staging/lustre/lnet/libcfs/hash.c
index 49a04a2b4ec4..f4f67d2b301e 100644
--- a/drivers/staging/lustre/lnet/libcfs/hash.c
+++ b/drivers/staging/lustre/lnet/libcfs/hash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c b/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c
index 2ddd09a83cd0..e3a4c67a66b5 100644
--- a/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c
+++ b/drivers/staging/lustre/lnet/libcfs/libcfs_cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c
index 77fd3d06cde9..f6a0040f4ab1 100644
--- a/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c
+++ b/drivers/staging/lustre/lnet/libcfs/libcfs_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c b/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c
index 1a0c7cad5983..df93d8f77ea2 100644
--- a/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c
+++ b/drivers/staging/lustre/lnet/libcfs/libcfs_mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/libcfs_string.c b/drivers/staging/lustre/lnet/libcfs/libcfs_string.c
index 333e47febf87..bcac5074bf80 100644
--- a/drivers/staging/lustre/lnet/libcfs/libcfs_string.c
+++ b/drivers/staging/lustre/lnet/libcfs/libcfs_string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
index 2da051c0d251..51823ce71773 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto-adler.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto-adler.c
index db0572733712..2e5d311d2438 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto-adler.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto-adler.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c
index 55663390b608..80072b2a443c 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* GPL HEADER START
  *
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.h b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.h
index d0b3aa80cfa6..5616e9ea1450 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.h
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-crypto.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-curproc.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-curproc.c
index 528d49794881..1d8949f1a4fa 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-curproc.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-curproc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c
index 972677bdf6bc..0092166af258 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-mem.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-mem.c
index 3f5dec153571..963df0ef4afb 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-mem.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 only,
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c
index 435722175cce..b5746230ab31 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
index 4e331e71083d..6f92ea272186 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-prim.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c b/drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c
index 16a3ae791bb6..7928d7182634 100644
--- a/drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c
+++ b/drivers/staging/lustre/lnet/libcfs/linux/linux-tracefile.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c
index 6aed98fc9688..4ead55920e79 100644
--- a/drivers/staging/lustre/lnet/libcfs/module.c
+++ b/drivers/staging/lustre/lnet/libcfs/module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/prng.c b/drivers/staging/lustre/lnet/libcfs/prng.c
index 963ef4ae93b1..f47cf67a92e3 100644
--- a/drivers/staging/lustre/lnet/libcfs/prng.c
+++ b/drivers/staging/lustre/lnet/libcfs/prng.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/tracefile.c b/drivers/staging/lustre/lnet/libcfs/tracefile.c
index 68f283a2744c..da2844f37edf 100644
--- a/drivers/staging/lustre/lnet/libcfs/tracefile.c
+++ b/drivers/staging/lustre/lnet/libcfs/tracefile.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -731,8 +732,7 @@ int cfs_tracefile_dump_all_pages(char *filename)
 		__LASSERT_TAGE_INVARIANT(tage);
 
 		buf = kmap(tage->page);
-		rc = vfs_write(filp, (__force const char __user *)buf,
-			       tage->used, &filp->f_pos);
+		rc = kernel_write(filp, buf, tage->used, &filp->f_pos);
 		kunmap(tage->page);
 
 		if (rc != (int)tage->used) {
@@ -976,7 +976,6 @@ static int tracefiled(void *arg)
 	struct tracefiled_ctl *tctl = arg;
 	struct cfs_trace_page *tage;
 	struct cfs_trace_page *tmp;
-	mm_segment_t __oldfs;
 	struct file *filp;
 	char *buf;
 	int last_loop = 0;
@@ -1014,8 +1013,6 @@ static int tracefiled(void *arg)
 			__LASSERT(list_empty(&pc.pc_pages));
 			goto end_loop;
 		}
-		__oldfs = get_fs();
-		set_fs(get_ds());
 
 		list_for_each_entry_safe(tage, tmp, &pc.pc_pages, linkage) {
 			static loff_t f_pos;
@@ -1028,8 +1025,7 @@ static int tracefiled(void *arg)
 				f_pos = i_size_read(file_inode(filp));
 
 			buf = kmap(tage->page);
-			rc = vfs_write(filp, (__force const char __user *)buf,
-				       tage->used, &f_pos);
+			rc = kernel_write(filp, buf, tage->used, &f_pos);
 			kunmap(tage->page);
 
 			if (rc != (int)tage->used) {
@@ -1040,7 +1036,6 @@ static int tracefiled(void *arg)
 				break;
 			}
 		}
-		set_fs(__oldfs);
 
 		filp_close(filp, NULL);
 		put_pages_on_daemon_list(&pc);
diff --git a/drivers/staging/lustre/lnet/libcfs/tracefile.h b/drivers/staging/lustre/lnet/libcfs/tracefile.h
index c3547cd4c72c..a29d6eb3a785 100644
--- a/drivers/staging/lustre/lnet/libcfs/tracefile.h
+++ b/drivers/staging/lustre/lnet/libcfs/tracefile.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/libcfs/workitem.c b/drivers/staging/lustre/lnet/libcfs/workitem.c
index 038ed8c52107..6a05d9bab8dc 100644
--- a/drivers/staging/lustre/lnet/libcfs/workitem.c
+++ b/drivers/staging/lustre/lnet/libcfs/workitem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/Makefile b/drivers/staging/lustre/lnet/lnet/Makefile
index fd8585cd0ce2..0a9d70924fe0 100644
--- a/drivers/staging/lustre/lnet/lnet/Makefile
+++ b/drivers/staging/lustre/lnet/lnet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/include
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index be2823f8eb02..ee85cab6f437 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c
index ad835035fffa..7caff290c146 100644
--- a/drivers/staging/lustre/lnet/lnet/api-ni.c
+++ b/drivers/staging/lustre/lnet/lnet/api-ni.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index 26841a7b6213..0cf0f4f99435 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-eq.c b/drivers/staging/lustre/lnet/lnet/lib-eq.c
index 6b446a51eeac..daf744277003 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-eq.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-eq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-md.c b/drivers/staging/lustre/lnet/lnet/lib-md.c
index a0aef4b9bce3..ac5b9593d597 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-md.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-md.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-me.c b/drivers/staging/lustre/lnet/lnet/lib-me.c
index f52a5e8ed386..dd5d3cf6d3e2 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-me.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-me.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index bc0779c02d97..27848cd69564 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-msg.c b/drivers/staging/lustre/lnet/lnet/lib-msg.c
index d04875e3956f..c72ef05b2420 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-msg.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-msg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
index 5946848a7846..8ae93bf6fd1b 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-ptl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c
index 7d0add0c0de3..539a26444f31 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-socket.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/lo.c b/drivers/staging/lustre/lnet/lnet/lo.c
index 80c06f4b0c8d..7456b989e451 100644
--- a/drivers/staging/lustre/lnet/lnet/lo.c
+++ b/drivers/staging/lustre/lnet/lnet/lo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c
index 7d12a7fb36a4..c0c4723f72fd 100644
--- a/drivers/staging/lustre/lnet/lnet/module.c
+++ b/drivers/staging/lustre/lnet/lnet/module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/net_fault.c b/drivers/staging/lustre/lnet/lnet/net_fault.c
index 03f3d18a1a29..3c83aa31e2c2 100644
--- a/drivers/staging/lustre/lnet/lnet/net_fault.c
+++ b/drivers/staging/lustre/lnet/lnet/net_fault.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -629,6 +630,7 @@ delayed_msg_process(struct list_head *msg_list, bool drop)
 			case LNET_CREDIT_OK:
 				lnet_ni_recv(ni, msg->msg_private, msg, 0,
 					     0, msg->msg_len, msg->msg_len);
+				/* fall through */
 			case LNET_CREDIT_WAIT:
 				continue;
 			default: /* failures */
diff --git a/drivers/staging/lustre/lnet/lnet/nidstrings.c b/drivers/staging/lustre/lnet/lnet/nidstrings.c
index 7bd1e6f389aa..05b120c2d45a 100644
--- a/drivers/staging/lustre/lnet/lnet/nidstrings.c
+++ b/drivers/staging/lustre/lnet/lnet/nidstrings.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/peer.c b/drivers/staging/lustre/lnet/lnet/peer.c
index 4d55df8ff74e..5e94ad349454 100644
--- a/drivers/staging/lustre/lnet/lnet/peer.c
+++ b/drivers/staging/lustre/lnet/lnet/peer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/lnet/router.c b/drivers/staging/lustre/lnet/lnet/router.c
index 3df101bafd9f..88283ca3f860 100644
--- a/drivers/staging/lustre/lnet/lnet/router.c
+++ b/drivers/staging/lustre/lnet/lnet/router.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  *
@@ -222,15 +223,12 @@ struct lnet_remotenet *
 lnet_find_net_locked(__u32 net)
 {
 	struct lnet_remotenet *rnet;
-	struct list_head *tmp;
 	struct list_head *rn_list;
 
 	LASSERT(!the_lnet.ln_shutdown);
 
 	rn_list = lnet_net2rnethash(net);
-	list_for_each(tmp, rn_list) {
-		rnet = list_entry(tmp, struct lnet_remotenet, lrn_list);
-
+	list_for_each_entry(rnet, rn_list, lrn_list) {
 		if (rnet->lrn_net == net)
 			return rnet;
 	}
@@ -243,7 +241,6 @@ static void lnet_shuffle_seed(void)
 	__u32 lnd_type, seed[2];
 	struct timespec64 ts;
 	struct lnet_ni *ni;
-	struct list_head *tmp;
 
 	if (seeded)
 		return;
@@ -254,8 +251,7 @@ static void lnet_shuffle_seed(void)
 	 * Nodes with small feet have little entropy
 	 * the NID for this node gives the most entropy in the low bits
 	 */
-	list_for_each(tmp, &the_lnet.ln_nis) {
-		ni = list_entry(tmp, struct lnet_ni, ni_list);
+	list_for_each_entry(ni, &the_lnet.ln_nis, ni_list) {
 		lnd_type = LNET_NETTYP(LNET_NIDNET(ni->ni_nid));
 
 		if (lnd_type != LOLND)
diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
index 4a994d113c7d..d32d653edcb0 100644
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ b/drivers/staging/lustre/lnet/lnet/router_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  *
diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
index f8b9175f08d4..f1ee219bc8f3 100644
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/conctl.c b/drivers/staging/lustre/lnet/selftest/conctl.c
index 9619ecbf8bdf..082c0afacf23 100644
--- a/drivers/staging/lustre/lnet/selftest/conctl.c
+++ b/drivers/staging/lustre/lnet/selftest/conctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -151,6 +152,7 @@ lst_debug_ioctl(struct lstio_debug_args *args)
 
 	case LST_OPC_BATCHSRV:
 		client = 0;
+		/* fall through */
 	case LST_OPC_BATCHCLI:
 		if (!name)
 			goto out;
diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index 196d23c10921..6a0f770e0e24 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.h b/drivers/staging/lustre/lnet/selftest/conrpc.h
index 239323679baa..374a5f31ef6f 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.h
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c
index 289b202c3b36..a2662638d599 100644
--- a/drivers/staging/lustre/lnet/selftest/console.c
+++ b/drivers/staging/lustre/lnet/selftest/console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/console.h b/drivers/staging/lustre/lnet/selftest/console.h
index 143eae9b8d71..3933ed4cca93 100644
--- a/drivers/staging/lustre/lnet/selftest/console.h
+++ b/drivers/staging/lustre/lnet/selftest/console.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/framework.c b/drivers/staging/lustre/lnet/selftest/framework.c
index ef27bfffc230..fe889607ff3f 100644
--- a/drivers/staging/lustre/lnet/selftest/framework.c
+++ b/drivers/staging/lustre/lnet/selftest/framework.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/module.c b/drivers/staging/lustre/lnet/selftest/module.c
index b5d556fa48ab..1d44d912f014 100644
--- a/drivers/staging/lustre/lnet/selftest/module.c
+++ b/drivers/staging/lustre/lnet/selftest/module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -57,10 +58,13 @@ lnet_selftest_exit(void)
 	switch (lst_init_step) {
 	case LST_INIT_CONSOLE:
 		lstcon_console_fini();
+		/* fall through */
 	case LST_INIT_FW:
 		sfw_shutdown();
+		/* fall through */
 	case LST_INIT_RPC:
 		srpc_shutdown();
+		/* fall through */
 	case LST_INIT_WI_TEST:
 		for (i = 0;
 		     i < cfs_cpt_number(lnet_cpt_table()); i++) {
@@ -72,7 +76,7 @@ lnet_selftest_exit(void)
 			    sizeof(lst_sched_test[0]) *
 			    cfs_cpt_number(lnet_cpt_table()));
 		lst_sched_test = NULL;
-
+		/* fall through */
 	case LST_INIT_WI_SERIAL:
 		cfs_wi_sched_destroy(lst_sched_serial);
 		lst_sched_serial = NULL;
diff --git a/drivers/staging/lustre/lnet/selftest/ping_test.c b/drivers/staging/lustre/lnet/selftest/ping_test.c
index 9653ac6fd619..f54bd630dbf8 100644
--- a/drivers/staging/lustre/lnet/selftest/ping_test.c
+++ b/drivers/staging/lustre/lnet/selftest/ping_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.c b/drivers/staging/lustre/lnet/selftest/rpc.c
index 77c222cca230..ab7e8a8e58b8 100644
--- a/drivers/staging/lustre/lnet/selftest/rpc.c
+++ b/drivers/staging/lustre/lnet/selftest/rpc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -1037,6 +1038,7 @@ srpc_handle_rpc(struct swi_workitem *wi)
 			ev->ev_status = rc;
 		}
 	}
+		/* fall through */
 	case SWI_STATE_BULK_STARTED:
 		LASSERT(!rpc->srpc_bulk || ev->ev_fired);
 
@@ -1237,7 +1239,8 @@ srpc_send_rpc(struct swi_workitem *wi)
 			break;
 
 		wi->swi_state = SWI_STATE_REQUEST_SENT;
-		/* perhaps more events, fall thru */
+		/* perhaps more events */
+		/* fall through */
 	case SWI_STATE_REQUEST_SENT: {
 		enum srpc_msg_type type = srpc_service2reply(rpc->crpc_service);
 
@@ -1269,6 +1272,7 @@ srpc_send_rpc(struct swi_workitem *wi)
 
 		wi->swi_state = SWI_STATE_REPLY_RECEIVED;
 	}
+		/* fall through */
 	case SWI_STATE_REPLY_RECEIVED:
 		if (do_bulk && !rpc->crpc_bulkev.ev_fired)
 			break;
@@ -1448,6 +1452,7 @@ srpc_lnet_ev_handler(struct lnet_event *ev)
 			srpc_data.rpc_counters.rpcs_sent++;
 			spin_unlock(&srpc_data.rpc_glock);
 		}
+		/* fall through */
 	case SRPC_REPLY_RCVD:
 	case SRPC_BULK_REQ_RCVD:
 		crpc = rpcev->ev_data;
@@ -1570,7 +1575,7 @@ srpc_lnet_ev_handler(struct lnet_event *ev)
 
 		if (!ev->unlinked)
 			break; /* wait for final event */
-
+		/* fall through */
 	case SRPC_BULK_PUT_SENT:
 		if (!ev->status && ev->type != LNET_EVENT_UNLINK) {
 			spin_lock(&srpc_data.rpc_glock);
@@ -1582,6 +1587,7 @@ srpc_lnet_ev_handler(struct lnet_event *ev)
 
 			spin_unlock(&srpc_data.rpc_glock);
 		}
+		/* fall through */
 	case SRPC_REPLY_SENT:
 		srpc = rpcev->ev_data;
 		scd = srpc->srpc_scd;
@@ -1674,14 +1680,14 @@ srpc_shutdown(void)
 		spin_unlock(&srpc_data.rpc_glock);
 
 		stt_shutdown();
-
+		/* fall through */
 	case SRPC_STATE_EQ_INIT:
 		rc = LNetClearLazyPortal(SRPC_FRAMEWORK_REQUEST_PORTAL);
 		rc = LNetClearLazyPortal(SRPC_REQUEST_PORTAL);
 		LASSERT(!rc);
 		rc = LNetEQFree(srpc_data.rpc_lnet_eq);
 		LASSERT(!rc); /* the EQ should have no user by now */
-
+		/* fall through */
 	case SRPC_STATE_NI_INIT:
 		LNetNIFini();
 	}
diff --git a/drivers/staging/lustre/lnet/selftest/rpc.h b/drivers/staging/lustre/lnet/selftest/rpc.h
index 7bb442a8e698..465b5b534423 100644
--- a/drivers/staging/lustre/lnet/selftest/rpc.h
+++ b/drivers/staging/lustre/lnet/selftest/rpc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/selftest.h b/drivers/staging/lustre/lnet/selftest/selftest.h
index 7adad4302dcf..8c10f0f149d5 100644
--- a/drivers/staging/lustre/lnet/selftest/selftest.h
+++ b/drivers/staging/lustre/lnet/selftest/selftest.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/timer.c b/drivers/staging/lustre/lnet/selftest/timer.c
index 2fe692df19d0..ab125a8524c5 100644
--- a/drivers/staging/lustre/lnet/selftest/timer.c
+++ b/drivers/staging/lustre/lnet/selftest/timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lnet/selftest/timer.h b/drivers/staging/lustre/lnet/selftest/timer.h
index 441d6d6b4f8e..7f0ef9bd0cda 100644
--- a/drivers/staging/lustre/lnet/selftest/timer.h
+++ b/drivers/staging/lustre/lnet/selftest/timer.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/fid/fid_internal.h b/drivers/staging/lustre/lustre/fid/fid_internal.h
index f48ab9d21428..b7b8f900df8e 100644
--- a/drivers/staging/lustre/lustre/fid/fid_internal.h
+++ b/drivers/staging/lustre/lustre/fid/fid_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/fid/fid_lib.c b/drivers/staging/lustre/lustre/fid/fid_lib.c
index c21a5f5b7621..9577da33e666 100644
--- a/drivers/staging/lustre/lustre/fid/fid_lib.c
+++ b/drivers/staging/lustre/lustre/fid/fid_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c
index ba736239243c..009c2367f74e 100644
--- a/drivers/staging/lustre/lustre/fid/fid_request.c
+++ b/drivers/staging/lustre/lustre/fid/fid_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -279,7 +280,8 @@ int seq_client_alloc_fid(const struct lu_env *env,
 	*fid = seq->lcs_fid;
 	mutex_unlock(&seq->lcs_mutex);
 
-	CDEBUG(D_INFO, "%s: Allocated FID " DFID "\n", seq->lcs_name,  PFID(fid));
+	CDEBUG(D_INFO,
+	       "%s: Allocated FID " DFID "\n", seq->lcs_name,  PFID(fid));
 	return rc;
 }
 EXPORT_SYMBOL(seq_client_alloc_fid);
diff --git a/drivers/staging/lustre/lustre/fid/lproc_fid.c b/drivers/staging/lustre/lustre/fid/lproc_fid.c
index 1a269fbc4b47..083419f77697 100644
--- a/drivers/staging/lustre/lustre/fid/lproc_fid.c
+++ b/drivers/staging/lustre/lustre/fid/lproc_fid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c
index b723ece02eff..7d6a7106c0a5 100644
--- a/drivers/staging/lustre/lustre/fld/fld_cache.c
+++ b/drivers/staging/lustre/lustre/fld/fld_cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/fld/fld_internal.h b/drivers/staging/lustre/lustre/fld/fld_internal.h
index fe6f278a7d9f..b5e3abaa508a 100644
--- a/drivers/staging/lustre/lustre/fld/fld_internal.h
+++ b/drivers/staging/lustre/lustre/fld/fld_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index 5b180830eec0..068c364adda8 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -425,7 +426,8 @@ int fld_client_lookup(struct lu_client_fld *fld, u64 seq, u32 *mds,
 	target = fld_client_get_target(fld, seq);
 	LASSERT(target);
 
-	CDEBUG(D_INFO, "%s: Lookup fld entry (seq: %#llx) on target %s (idx %llu)\n",
+	CDEBUG(D_INFO,
+	       "%s: Lookup fld entry (seq: %#llx) on target %s (idx %llu)\n",
 	       fld->lcf_name, seq, fld_target_name(target), target->ft_idx);
 
 	res.lsr_start = seq;
diff --git a/drivers/staging/lustre/lustre/fld/lproc_fld.c b/drivers/staging/lustre/lustre/fld/lproc_fld.c
index 6cae803fc8d2..1a6a76110c3e 100644
--- a/drivers/staging/lustre/lustre/fld/lproc_fld.c
+++ b/drivers/staging/lustre/lustre/fld/lproc_fld.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h
index 9ba184b6017f..90419dca2e1e 100644
--- a/drivers/staging/lustre/lustre/include/cl_object.h
+++ b/drivers/staging/lustre/lustre/include/cl_object.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/interval_tree.h b/drivers/staging/lustre/lustre/include/interval_tree.h
index a4d7280e1fa4..7d119c1a0469 100644
--- a/drivers/staging/lustre/lustre/include/interval_tree.h
+++ b/drivers/staging/lustre/lustre/include/interval_tree.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/llog_swab.h b/drivers/staging/lustre/lustre/include/llog_swab.h
index 925271db4554..0433b79efdcb 100644
--- a/drivers/staging/lustre/lustre/include/llog_swab.h
+++ b/drivers/staging/lustre/lustre/include/llog_swab.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lprocfs_status.h b/drivers/staging/lustre/lustre/include/lprocfs_status.h
index 98d6b1364c21..835a729dd8d0 100644
--- a/drivers/staging/lustre/lustre/include/lprocfs_status.h
+++ b/drivers/staging/lustre/lustre/include/lprocfs_status.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index 4f213c408cfa..34e35fbff978 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -1130,7 +1131,7 @@ struct lu_context_key {
 	{							 \
 		type *value;				      \
 								  \
-		BUILD_BUG_ON(PAGE_SIZE < sizeof(*value));        \
+		BUILD_BUG_ON(sizeof(*value) > PAGE_SIZE);        \
 								  \
 		value = kzalloc(sizeof(*value), GFP_NOFS);	\
 		if (!value)				\
@@ -1303,8 +1304,6 @@ struct lu_buf {
 	size_t	lb_len;
 };
 
-#define DLUBUF "(%p %zu)"
-#define PLUBUF(buf) (buf)->lb_buf, (buf)->lb_len
 /**
  * One-time initializers, called at obdclass module initialization, not
  * exported.
diff --git a/drivers/staging/lustre/lustre/include/lu_ref.h b/drivers/staging/lustre/lustre/include/lu_ref.h
index f7dfd83951ee..ad0c24d29ffa 100644
--- a/drivers/staging/lustre/lustre/include/lu_ref.h
+++ b/drivers/staging/lustre/lustre/include/lu_ref.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
diff --git a/drivers/staging/lustre/lustre/include/lustre_acl.h b/drivers/staging/lustre/lustre/include/lustre_acl.h
index 9786f6caaade..35ff61ce4e9d 100644
--- a/drivers/staging/lustre/lustre/include/lustre_acl.h
+++ b/drivers/staging/lustre/lustre/include/lustre_acl.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_compat.h b/drivers/staging/lustre/lustre/include/lustre_compat.h
index 69bfd6a6e0f9..9f488e605083 100644
--- a/drivers/staging/lustre/lustre/include/lustre_compat.h
+++ b/drivers/staging/lustre/lustre/include/lustre_compat.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_debug.h b/drivers/staging/lustre/lustre/include/lustre_debug.h
index 0be6a534f712..721a81f923e3 100644
--- a/drivers/staging/lustre/lustre/include/lustre_debug.h
+++ b/drivers/staging/lustre/lustre/include/lustre_debug.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_disk.h b/drivers/staging/lustre/lustre/include/lustre_disk.h
index 2d862b32265b..8f1a22527006 100644
--- a/drivers/staging/lustre/lustre/include/lustre_disk.h
+++ b/drivers/staging/lustre/lustre/include/lustre_disk.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 13c3d2fd31a8..e0b17052b2ea 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
index 11331ae81d58..53db031c4c8c 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm_flags.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*  -*- buffer-read-only: t -*- vi: set ro:
  *
  * This program is free software; you can redistribute it and/or modify
@@ -136,7 +137,8 @@
 #define ldlm_clear_cancel_on_block(_l)  LDLM_CLEAR_FLAG((_l), 1ULL << 23)
 
 /**
- * measure lock contention and return -EUSERS if locking contention is high */
+ * measure lock contention and return -EUSERS if locking contention is high
+ */
 #define LDLM_FL_DENY_ON_CONTENTION        0x0000000040000000ULL /* bit 30 */
 #define ldlm_is_deny_on_contention(_l)    LDLM_TEST_FLAG((_l), 1ULL << 30)
 #define ldlm_set_deny_on_contention(_l)   LDLM_SET_FLAG((_l), 1ULL << 30)
@@ -144,7 +146,8 @@
 
 /**
  * These are flags that are mapped into the flags and ASTs of blocking
- * locks Add FL_DISCARD to blocking ASTs */
+ * locks Add FL_DISCARD to blocking ASTs
+ */
 #define LDLM_FL_AST_DISCARD_DATA        0x0000000080000000ULL /* bit 31 */
 #define ldlm_is_ast_discard_data(_l)    LDLM_TEST_FLAG((_l), 1ULL << 31)
 #define ldlm_set_ast_discard_data(_l)   LDLM_SET_FLAG((_l), 1ULL << 31)
diff --git a/drivers/staging/lustre/lustre/include/lustre_errno.h b/drivers/staging/lustre/lustre/include/lustre_errno.h
index 35aefa2cdad1..59fbb9f47ff1 100644
--- a/drivers/staging/lustre/lustre/include/lustre_errno.h
+++ b/drivers/staging/lustre/lustre/include/lustre_errno.h
@@ -70,16 +70,14 @@
 #define LUSTRE_EROFS		30	/* Read-only file system */
 #define LUSTRE_EMLINK		31	/* Too many links */
 #define LUSTRE_EPIPE		32	/* Broken pipe */
-#define LUSTRE_EDOM		33	/* Math argument out of domain of
-					   func */
+#define LUSTRE_EDOM		33	/* Math argument out of func domain */
 #define LUSTRE_ERANGE		34	/* Math result not representable */
 #define LUSTRE_EDEADLK		35	/* Resource deadlock would occur */
 #define LUSTRE_ENAMETOOLONG	36	/* File name too long */
 #define LUSTRE_ENOLCK		37	/* No record locks available */
 #define LUSTRE_ENOSYS		38	/* Function not implemented */
 #define LUSTRE_ENOTEMPTY	39	/* Directory not empty */
-#define LUSTRE_ELOOP		40	/* Too many symbolic links
-					   encountered */
+#define LUSTRE_ELOOP		40	/* Too many symbolic links found */
 #define LUSTRE_ENOMSG		42	/* No message of desired type */
 #define LUSTRE_EIDRM		43	/* Identifier removed */
 #define LUSTRE_ECHRNG		44	/* Channel number out of range */
@@ -112,23 +110,17 @@
 #define LUSTRE_EMULTIHOP	72	/* Multihop attempted */
 #define LUSTRE_EDOTDOT		73	/* RFS specific error */
 #define LUSTRE_EBADMSG		74	/* Not a data message */
-#define LUSTRE_EOVERFLOW	75	/* Value too large for defined data
-					   type */
+#define LUSTRE_EOVERFLOW	75	/* Value too large for data type */
 #define LUSTRE_ENOTUNIQ		76	/* Name not unique on network */
 #define LUSTRE_EBADFD		77	/* File descriptor in bad state */
 #define LUSTRE_EREMCHG		78	/* Remote address changed */
-#define LUSTRE_ELIBACC		79	/* Can not access a needed shared
-					   library */
-#define LUSTRE_ELIBBAD		80	/* Accessing a corrupted shared
-					   library */
+#define LUSTRE_ELIBACC		79	/* Can't access needed shared library */
+#define LUSTRE_ELIBBAD		80	/* Access corrupted shared library */
 #define LUSTRE_ELIBSCN		81	/* .lib section in a.out corrupted */
-#define LUSTRE_ELIBMAX		82	/* Attempting to link in too many shared
-					   libraries */
-#define LUSTRE_ELIBEXEC		83	/* Cannot exec a shared library
-					   directly */
+#define LUSTRE_ELIBMAX		82	/* Trying to link too many libraries */
+#define LUSTRE_ELIBEXEC		83	/* Cannot exec a shared lib directly */
 #define LUSTRE_EILSEQ		84	/* Illegal byte sequence */
-#define LUSTRE_ERESTART		85	/* Interrupted system call should be
-					   restarted */
+#define LUSTRE_ERESTART		85	/* Restart interrupted system call */
 #define LUSTRE_ESTRPIPE		86	/* Streams pipe error */
 #define LUSTRE_EUSERS		87	/* Too many users */
 #define LUSTRE_ENOTSOCK		88	/* Socket operation on non-socket */
@@ -138,26 +130,20 @@
 #define LUSTRE_ENOPROTOOPT	92	/* Protocol not available */
 #define LUSTRE_EPROTONOSUPPORT	93	/* Protocol not supported */
 #define LUSTRE_ESOCKTNOSUPPORT	94	/* Socket type not supported */
-#define LUSTRE_EOPNOTSUPP	95	/* Operation not supported on transport
-					   endpoint */
+#define LUSTRE_EOPNOTSUPP	95	/* Operation not supported */
 #define LUSTRE_EPFNOSUPPORT	96	/* Protocol family not supported */
-#define LUSTRE_EAFNOSUPPORT	97	/* Address family not supported by
-					   protocol */
+#define LUSTRE_EAFNOSUPPORT	97	/* Address family not supported */
 #define LUSTRE_EADDRINUSE	98	/* Address already in use */
 #define LUSTRE_EADDRNOTAVAIL	99	/* Cannot assign requested address */
 #define LUSTRE_ENETDOWN		100	/* Network is down */
 #define LUSTRE_ENETUNREACH	101	/* Network is unreachable */
-#define LUSTRE_ENETRESET	102	/* Network dropped connection because of
-					   reset */
+#define LUSTRE_ENETRESET	102	/* Network connection drop for reset */
 #define LUSTRE_ECONNABORTED	103	/* Software caused connection abort */
 #define LUSTRE_ECONNRESET	104	/* Connection reset by peer */
 #define LUSTRE_ENOBUFS		105	/* No buffer space available */
-#define LUSTRE_EISCONN		106	/* Transport endpoint is already
-					   connected */
-#define LUSTRE_ENOTCONN		107	/* Transport endpoint is not
-					   connected */
-#define LUSTRE_ESHUTDOWN	108	/* Cannot send after transport endpoint
-					   shutdown */
+#define LUSTRE_EISCONN		106	/* Transport endpoint is connected */
+#define LUSTRE_ENOTCONN		107	/* Transport endpoint not connected */
+#define LUSTRE_ESHUTDOWN	108	/* Cannot send after shutdown */
 #define LUSTRE_ETOOMANYREFS	109	/* Too many references: cannot splice */
 #define LUSTRE_ETIMEDOUT	110	/* Connection timed out */
 #define LUSTRE_ECONNREFUSED	111	/* Connection refused */
@@ -185,8 +171,7 @@
 #define LUSTRE_ERESTARTNOINTR	513
 #define LUSTRE_ERESTARTNOHAND	514	/* restart if no handler.. */
 #define LUSTRE_ENOIOCTLCMD	515	/* No ioctl command */
-#define LUSTRE_ERESTART_RESTARTBLOCK 516 /* restart by calling
-					    sys_restart_syscall */
+#define LUSTRE_ERESTART_RESTARTBLOCK 516 /* restart via sys_restart_syscall */
 #define LUSTRE_EBADHANDLE	521	/* Illegal NFS file handle */
 #define LUSTRE_ENOTSYNC		522	/* Update synchronization mismatch */
 #define LUSTRE_EBADCOOKIE	523	/* Cookie is stale */
@@ -194,10 +179,8 @@
 #define LUSTRE_ETOOSMALL	525	/* Buffer or request is too small */
 #define LUSTRE_ESERVERFAULT	526	/* An untranslatable error occurred */
 #define LUSTRE_EBADTYPE		527	/* Type not supported by server */
-#define LUSTRE_EJUKEBOX		528	/* Request initiated, but will not
-					   complete before timeout */
-#define LUSTRE_EIOCBQUEUED	529	/* iocb queued, will get completion
-					   event */
+#define LUSTRE_EJUKEBOX		528	/* Request won't finish until timeout */
+#define LUSTRE_EIOCBQUEUED	529	/* iocb queued await completion event */
 #define LUSTRE_EIOCBRETRY	530	/* iocb queued, will trigger a retry */
 
 /*
diff --git a/drivers/staging/lustre/lustre/include/lustre_export.h b/drivers/staging/lustre/lustre/include/lustre_export.h
index 3631a69a5c6f..66ac9dc7302a 100644
--- a/drivers/staging/lustre/lustre/include/lustre_export.h
+++ b/drivers/staging/lustre/lustre/include/lustre_export.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h
index e0f2b8295775..d19c7a27ee48 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fid.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fid.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_fld.h b/drivers/staging/lustre/lustre/include/lustre_fld.h
index 6125eb0d3395..4055bbd24c55 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fld.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fld.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_ha.h b/drivers/staging/lustre/lustre/include/lustre_ha.h
index dec1e99d594d..cbd68985ada9 100644
--- a/drivers/staging/lustre/lustre/include/lustre_ha.h
+++ b/drivers/staging/lustre/lustre/include/lustre_ha.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_handles.h b/drivers/staging/lustre/lustre/include/lustre_handles.h
index d49932628f32..c48c97362cf6 100644
--- a/drivers/staging/lustre/lustre/include/lustre_handles.h
+++ b/drivers/staging/lustre/lustre/include/lustre_handles.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_import.h b/drivers/staging/lustre/lustre/include/lustre_import.h
index d71d0473a4eb..ea158e0630e2 100644
--- a/drivers/staging/lustre/lustre/include/lustre_import.h
+++ b/drivers/staging/lustre/lustre/include/lustre_import.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_intent.h b/drivers/staging/lustre/lustre/include/lustre_intent.h
index ed2b6c674109..519e94fc089d 100644
--- a/drivers/staging/lustre/lustre/include/lustre_intent.h
+++ b/drivers/staging/lustre/lustre/include/lustre_intent.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_kernelcomm.h b/drivers/staging/lustre/lustre/include/lustre_kernelcomm.h
index f1899a3d7a40..2b3fa8430185 100644
--- a/drivers/staging/lustre/lustre/include/lustre_kernelcomm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_kernelcomm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_lib.h b/drivers/staging/lustre/lustre/include/lustre_lib.h
index 81b9cbffc050..ca1dce15337e 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lib.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lib.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_linkea.h b/drivers/staging/lustre/lustre/include/lustre_linkea.h
index 3ff008fee13d..03db1511bfd3 100644
--- a/drivers/staging/lustre/lustre/include/lustre_linkea.h
+++ b/drivers/staging/lustre/lustre/include/lustre_linkea.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_lmv.h b/drivers/staging/lustre/lustre/include/lustre_lmv.h
index 98a82be2037f..f4298e5f7543 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lmv.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lmv.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_log.h b/drivers/staging/lustre/lustre/include/lustre_log.h
index 24a7777424f6..07f4e600386b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_log.h
+++ b/drivers/staging/lustre/lustre/include/lustre_log.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_mdc.h b/drivers/staging/lustre/lustre/include/lustre_mdc.h
index c0c44974cb1c..007e1ec3f0f4 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mdc.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mdc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_mds.h b/drivers/staging/lustre/lustre/include/lustre_mds.h
index c424e1239fd5..6937546f1d46 100644
--- a/drivers/staging/lustre/lustre/include/lustre_mds.h
+++ b/drivers/staging/lustre/lustre/include/lustre_mds.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index c6d1646f102a..3ff5de4770e8 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_nrs.h b/drivers/staging/lustre/lustre/include/lustre_nrs.h
index 51f45f7776df..ffa7317da35b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_nrs.h
+++ b/drivers/staging/lustre/lustre/include/lustre_nrs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_nrs_fifo.h b/drivers/staging/lustre/lustre/include/lustre_nrs_fifo.h
index 3b5418eac6c4..b70d97d4acbb 100644
--- a/drivers/staging/lustre/lustre/include/lustre_nrs_fifo.h
+++ b/drivers/staging/lustre/lustre/include/lustre_nrs_fifo.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_obdo.h b/drivers/staging/lustre/lustre/include/lustre_obdo.h
index 53379f861161..d67dcbb84f18 100644
--- a/drivers/staging/lustre/lustre/include/lustre_obdo.h
+++ b/drivers/staging/lustre/lustre/include/lustre_obdo.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_patchless_compat.h b/drivers/staging/lustre/lustre/include/lustre_patchless_compat.h
index 5842cb18b49e..ce28ed5c1ef8 100644
--- a/drivers/staging/lustre/lustre/include/lustre_patchless_compat.h
+++ b/drivers/staging/lustre/lustre/include/lustre_patchless_compat.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_req_layout.h b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
index cd62ccd53e2c..213d0a01adcf 100644
--- a/drivers/staging/lustre/lustre/include/lustre_req_layout.h
+++ b/drivers/staging/lustre/lustre/include/lustre_req_layout.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_sec.h b/drivers/staging/lustre/lustre/include/lustre_sec.h
index 03a970bcac55..a40f706a53a1 100644
--- a/drivers/staging/lustre/lustre/include/lustre_sec.h
+++ b/drivers/staging/lustre/lustre/include/lustre_sec.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/lustre_swab.h b/drivers/staging/lustre/lustre/include/lustre_swab.h
index 765e923c2fc9..9d786bbe7f3f 100644
--- a/drivers/staging/lustre/lustre/include/lustre_swab.h
+++ b/drivers/staging/lustre/lustre/include/lustre_swab.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index a986737ec010..4368f4e9f208 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/obd_cksum.h b/drivers/staging/lustre/lustre/include/obd_cksum.h
index cda3d2808d2f..e5f7bb20415d 100644
--- a/drivers/staging/lustre/lustre/include/obd_cksum.h
+++ b/drivers/staging/lustre/lustre/include/obd_cksum.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/obd_class.h b/drivers/staging/lustre/lustre/include/obd_class.h
index 976005a1e0b2..67c535c5aa98 100644
--- a/drivers/staging/lustre/lustre/include/obd_class.h
+++ b/drivers/staging/lustre/lustre/include/obd_class.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index aea193a882a2..3f4fe290f6ea 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/include/seq_range.h b/drivers/staging/lustre/lustre/include/seq_range.h
index d7175485944d..9450da728160 100644
--- a/drivers/staging/lustre/lustre/include/seq_range.h
+++ b/drivers/staging/lustre/lustre/include/seq_range.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index 19e285dd2ee1..8df7a4463c21 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ldlm/l_lock.c b/drivers/staging/lustre/lustre/ldlm/l_lock.c
index 57fd84effdfa..0662cec14b81 100644
--- a/drivers/staging/lustre/lustre/ldlm/l_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/l_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
index 2cc6dc2b281f..fac9d19d50b6 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -207,7 +208,8 @@ void ldlm_extent_add_lock(struct ldlm_resource *res,
 				continue;
 			if (ldlm_extent_overlap(&lck->l_req_extent,
 						&lock->l_req_extent)) {
-				CDEBUG(D_ERROR, "granting conflicting lock %p %p\n",
+				CDEBUG(D_ERROR,
+				       "granting conflicting lock %p %p\n",
 				       lck, lock);
 				ldlm_resource_dump(D_ERROR, res);
 				LBUG();
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
index cb826e9e840e..657ab95091a0 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -59,17 +60,6 @@
 #include <linux/list.h>
 #include "ldlm_internal.h"
 
-/**
- * list_for_remaining_safe - iterate over the remaining entries in a list
- *	      and safeguard against removal of a list entry.
- * \param pos   the &struct list_head to use as a loop counter. pos MUST
- *	      have been initialized prior to using it in this macro.
- * \param n     another &struct list_head to use as temporary storage
- * \param head  the head for your list.
- */
-#define list_for_remaining_safe(pos, n, head) \
-	for (n = pos->next; pos != (head); pos = n, n = pos->next)
-
 static inline int
 ldlm_same_flock_owner(struct ldlm_lock *lock, struct ldlm_lock *new)
 {
@@ -88,24 +78,23 @@ ldlm_flocks_overlap(struct ldlm_lock *lock, struct ldlm_lock *new)
 }
 
 static inline void
-ldlm_flock_destroy(struct ldlm_lock *lock, enum ldlm_mode mode, __u64 flags)
+ldlm_flock_destroy(struct ldlm_lock *lock, enum ldlm_mode mode)
 {
-	LDLM_DEBUG(lock, "%s(mode: %d, flags: 0x%llx)",
-		   __func__, mode, flags);
+	LDLM_DEBUG(lock, "%s(mode: %d)",
+		   __func__, mode);
 
 	/* Safe to not lock here, since it should be empty anyway */
 	LASSERT(hlist_unhashed(&lock->l_exp_flock_hash));
 
 	list_del_init(&lock->l_res_link);
-	if (flags == LDLM_FL_WAIT_NOREPROC) {
-		/* client side - set a flag to prevent sending a CANCEL */
-		lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_CBPENDING;
 
-		/* when reaching here, it is under lock_res_and_lock(). Thus,
-		 * need call the nolock version of ldlm_lock_decref_internal
-		 */
-		ldlm_lock_decref_internal_nolock(lock, mode);
-	}
+	/* client side - set a flag to prevent sending a CANCEL */
+	lock->l_flags |= LDLM_FL_LOCAL_ONLY | LDLM_FL_CBPENDING;
+
+	/* when reaching here, it is under lock_res_and_lock(). Thus,
+	 * need call the nolock version of ldlm_lock_decref_internal
+	 */
+	ldlm_lock_decref_internal_nolock(lock, mode);
 
 	ldlm_lock_destroy_nolock(lock);
 }
@@ -121,129 +110,45 @@ ldlm_flock_destroy(struct ldlm_lock *lock, enum ldlm_mode mode, __u64 flags)
  * It is also responsible for splitting a lock if a portion of the lock
  * is released.
  *
- * If \a first_enq is 0 (ie, called from ldlm_reprocess_queue):
- *   - blocking ASTs have already been sent
- *
- * If \a first_enq is 1 (ie, called from ldlm_lock_enqueue):
- *   - blocking ASTs have not been sent yet, so list of conflicting locks
- *     would be collected and ASTs sent.
  */
-static int ldlm_process_flock_lock(struct ldlm_lock *req, __u64 *flags,
-				   int first_enq, enum ldlm_error *err,
-				   struct list_head *work_list)
+static int ldlm_process_flock_lock(struct ldlm_lock *req)
 {
 	struct ldlm_resource *res = req->l_resource;
 	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
-	struct list_head *tmp;
-	struct list_head *ownlocks = NULL;
-	struct ldlm_lock *lock = NULL;
+	struct ldlm_lock *tmp;
+	struct ldlm_lock *lock;
 	struct ldlm_lock *new = req;
 	struct ldlm_lock *new2 = NULL;
 	enum ldlm_mode mode = req->l_req_mode;
 	int added = (mode == LCK_NL);
-	int overlaps = 0;
 	int splitted = 0;
 	const struct ldlm_callback_suite null_cbs = { };
 
 	CDEBUG(D_DLMTRACE,
-	       "flags %#llx owner %llu pid %u mode %u start %llu end %llu\n",
-	       *flags, new->l_policy_data.l_flock.owner,
+	       "owner %llu pid %u mode %u start %llu end %llu\n",
+	       new->l_policy_data.l_flock.owner,
 	       new->l_policy_data.l_flock.pid, mode,
 	       req->l_policy_data.l_flock.start,
 	       req->l_policy_data.l_flock.end);
 
-	*err = ELDLM_OK;
-
 	/* No blocking ASTs are sent to the clients for
 	 * Posix file & record locks
 	 */
 	req->l_blocking_ast = NULL;
 
 reprocess:
-	if ((*flags == LDLM_FL_WAIT_NOREPROC) || (mode == LCK_NL)) {
-		/* This loop determines where this processes locks start
-		 * in the resource lr_granted list.
-		 */
-		list_for_each(tmp, &res->lr_granted) {
-			lock = list_entry(tmp, struct ldlm_lock,
-					  l_res_link);
-			if (ldlm_same_flock_owner(lock, req)) {
-				ownlocks = tmp;
-				break;
-			}
-		}
-	} else {
-		int reprocess_failed = 0;
-
-		lockmode_verify(mode);
-
-		/* This loop determines if there are existing locks
-		 * that conflict with the new lock request.
-		 */
-		list_for_each(tmp, &res->lr_granted) {
-			lock = list_entry(tmp, struct ldlm_lock,
-					  l_res_link);
-
-			if (ldlm_same_flock_owner(lock, req)) {
-				if (!ownlocks)
-					ownlocks = tmp;
-				continue;
-			}
-
-			/* locks are compatible, overlap doesn't matter */
-			if (lockmode_compat(lock->l_granted_mode, mode))
-				continue;
-
-			if (!ldlm_flocks_overlap(lock, req))
-				continue;
-
-			if (!first_enq) {
-				reprocess_failed = 1;
-				continue;
-			}
-
-			if (*flags & LDLM_FL_BLOCK_NOWAIT) {
-				ldlm_flock_destroy(req, mode, *flags);
-				*err = -EAGAIN;
-				return LDLM_ITER_STOP;
-			}
-
-			if (*flags & LDLM_FL_TEST_LOCK) {
-				ldlm_flock_destroy(req, mode, *flags);
-				req->l_req_mode = lock->l_granted_mode;
-				req->l_policy_data.l_flock.pid =
-					lock->l_policy_data.l_flock.pid;
-				req->l_policy_data.l_flock.start =
-					lock->l_policy_data.l_flock.start;
-				req->l_policy_data.l_flock.end =
-					lock->l_policy_data.l_flock.end;
-				*flags |= LDLM_FL_LOCK_CHANGED;
-				return LDLM_ITER_STOP;
-			}
-
-			ldlm_resource_add_lock(res, &res->lr_waiting, req);
-			*flags |= LDLM_FL_BLOCK_GRANTED;
-			return LDLM_ITER_STOP;
-		}
-		if (reprocess_failed)
-			return LDLM_ITER_CONTINUE;
-	}
-
-	if (*flags & LDLM_FL_TEST_LOCK) {
-		ldlm_flock_destroy(req, mode, *flags);
-		req->l_req_mode = LCK_NL;
-		*flags |= LDLM_FL_LOCK_CHANGED;
-		return LDLM_ITER_STOP;
-	}
+	/* This loop determines where this processes locks start
+	 * in the resource lr_granted list.
+	 */
+	list_for_each_entry(lock, &res->lr_granted, l_res_link)
+		if (ldlm_same_flock_owner(lock, req))
+			break;
 
-	/* Scan the locks owned by this process that overlap this request.
+	/* Scan the locks owned by this process to find the insertion point
+	 * (as locks are ordered), and to handle overlaps.
 	 * We may have to merge or split existing locks.
 	 */
-	if (!ownlocks)
-		ownlocks = &res->lr_granted;
-
-	list_for_remaining_safe(ownlocks, tmp, &res->lr_granted) {
-		lock = list_entry(ownlocks, struct ldlm_lock, l_res_link);
+	list_for_each_entry_safe_from(lock, tmp, &res->lr_granted, l_res_link) {
 
 		if (!ldlm_same_flock_owner(lock, new))
 			break;
@@ -283,7 +188,7 @@ reprocess:
 			}
 
 			if (added) {
-				ldlm_flock_destroy(lock, mode, *flags);
+				ldlm_flock_destroy(lock, mode);
 			} else {
 				new = lock;
 				added = 1;
@@ -299,8 +204,6 @@ reprocess:
 		    lock->l_policy_data.l_flock.start)
 			break;
 
-		++overlaps;
-
 		if (new->l_policy_data.l_flock.start <=
 		    lock->l_policy_data.l_flock.start) {
 			if (new->l_policy_data.l_flock.end <
@@ -309,7 +212,7 @@ reprocess:
 					new->l_policy_data.l_flock.end + 1;
 				break;
 			}
-			ldlm_flock_destroy(lock, lock->l_req_mode, *flags);
+			ldlm_flock_destroy(lock, lock->l_req_mode);
 			continue;
 		}
 		if (new->l_policy_data.l_flock.end >=
@@ -340,9 +243,7 @@ reprocess:
 						NULL, 0, LVB_T_NONE);
 			lock_res_and_lock(req);
 			if (IS_ERR(new2)) {
-				ldlm_flock_destroy(req, lock->l_granted_mode,
-						   *flags);
-				*err = PTR_ERR(new2);
+				ldlm_flock_destroy(req, lock->l_granted_mode);
 				return LDLM_ITER_STOP;
 			}
 			goto reprocess;
@@ -371,12 +272,11 @@ reprocess:
 					     &new2->l_remote_handle,
 					     &new2->l_exp_hash);
 		}
-		if (*flags == LDLM_FL_WAIT_NOREPROC)
-			ldlm_lock_addref_internal_nolock(new2,
-							 lock->l_granted_mode);
+		ldlm_lock_addref_internal_nolock(new2,
+						 lock->l_granted_mode);
 
 		/* insert new2 at lock */
-		ldlm_resource_add_lock(res, ownlocks, new2);
+		ldlm_resource_add_lock(res, &lock->l_res_link, new2);
 		LDLM_LOCK_RELEASE(new2);
 		break;
 	}
@@ -390,17 +290,12 @@ reprocess:
 
 	if (!added) {
 		list_del_init(&req->l_res_link);
-		/* insert new lock before ownlocks in list. */
-		ldlm_resource_add_lock(res, ownlocks, req);
-	}
-
-	if (*flags != LDLM_FL_WAIT_NOREPROC) {
-		/* The only one possible case for client-side calls flock
-		 * policy function is ldlm_flock_completion_ast inside which
-		 * carries LDLM_FL_WAIT_NOREPROC flag.
+		/* insert new lock before "lock", which might be the
+		 * next lock for this owner, or might be the first
+		 * lock for the next owner, or might not be a lock at
+		 * all, but instead points at the head of the list
 		 */
-		CERROR("Illegal parameter for client-side-only module.\n");
-		LBUG();
+		ldlm_resource_add_lock(res, &lock->l_res_link, req);
 	}
 
 	/* In case we're reprocessing the requested lock we can't destroy
@@ -409,7 +304,7 @@ reprocess:
 	 * could be freed before the completion AST can be sent.
 	 */
 	if (added)
-		ldlm_flock_destroy(req, mode, *flags);
+		ldlm_flock_destroy(req, mode);
 
 	ldlm_resource_dump(D_INFO, res);
 	return LDLM_ITER_CONTINUE;
@@ -417,7 +312,6 @@ reprocess:
 
 struct ldlm_flock_wait_data {
 	struct ldlm_lock *fwd_lock;
-	int	       fwd_generation;
 };
 
 static void
@@ -448,12 +342,9 @@ int
 ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 {
 	struct file_lock		*getlk = lock->l_ast_data;
-	struct obd_device	      *obd;
-	struct obd_import	      *imp = NULL;
-	struct ldlm_flock_wait_data     fwd;
-	struct l_wait_info	      lwi;
-	enum ldlm_error		    err;
-	int			     rc = 0;
+	struct ldlm_flock_wait_data	fwd;
+	struct l_wait_info		lwi;
+	int				rc = 0;
 
 	OBD_FAIL_TIMEOUT(OBD_FAIL_LDLM_CP_CB_WAIT2, 4);
 	if (OBD_FAIL_PRECHECK(OBD_FAIL_LDLM_CP_CB_WAIT3)) {
@@ -479,20 +370,9 @@ ldlm_flock_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 		return 0;
 	}
 
-	LDLM_DEBUG(lock, "client-side enqueue returned a blocked lock, sleeping");
+	LDLM_DEBUG(lock,
+		   "client-side enqueue returned a blocked lock, sleeping");
 	fwd.fwd_lock = lock;
-	obd = class_exp2obd(lock->l_conn_export);
-
-	/* if this is a local lock, there is no import */
-	if (obd)
-		imp = obd->u.cli.cl_import;
-
-	if (imp) {
-		spin_lock(&imp->imp_lock);
-		fwd.fwd_generation = imp->imp_generation;
-		spin_unlock(&imp->imp_lock);
-	}
-
 	lwi = LWI_TIMEOUT_INTR(0, NULL, ldlm_flock_interrupted_wait, &fwd);
 
 	/* Go to sleep until the lock is granted. */
@@ -561,10 +441,11 @@ granted:
 			mode = lock->l_granted_mode;
 
 		if (ldlm_is_flock_deadlock(lock)) {
-			LDLM_DEBUG(lock, "client-side enqueue deadlock received");
+			LDLM_DEBUG(lock,
+				   "client-side enqueue deadlock received");
 			rc = -EDEADLK;
 		}
-		ldlm_flock_destroy(lock, mode, LDLM_FL_WAIT_NOREPROC);
+		ldlm_flock_destroy(lock, mode);
 		unlock_res_and_lock(lock);
 
 		/* Need to wake up the waiter if we were evicted */
@@ -585,7 +466,7 @@ granted:
 		 * in the lock changes we can decref the appropriate refcount.
 		 */
 		LASSERT(ldlm_is_test_lock(lock));
-		ldlm_flock_destroy(lock, getlk->fl_type, LDLM_FL_WAIT_NOREPROC);
+		ldlm_flock_destroy(lock, getlk->fl_type);
 		switch (lock->l_granted_mode) {
 		case LCK_PR:
 			getlk->fl_type = F_RDLCK;
@@ -600,12 +481,10 @@ granted:
 		getlk->fl_start = (loff_t)lock->l_policy_data.l_flock.start;
 		getlk->fl_end = (loff_t)lock->l_policy_data.l_flock.end;
 	} else {
-		__u64 noreproc = LDLM_FL_WAIT_NOREPROC;
-
 		/* We need to reprocess the lock to do merges or splits
 		 * with existing locks owned by this process.
 		 */
-		ldlm_process_flock_lock(lock, &noreproc, 1, &err, NULL);
+		ldlm_process_flock_lock(lock);
 	}
 	unlock_res_and_lock(lock);
 	return rc;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c b/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c
index fcb6e44bd319..2926208cdfa1 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_inodebits.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
index 36808dbe8790..bc33ca100620 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -88,7 +89,7 @@ struct ldlm_namespace *ldlm_namespace_first_locked(enum ldlm_side client);
 /* ldlm_request.c */
 /* Cancel lru flag, it indicates we cancel aged locks. */
 enum {
-	LDLM_LRU_FLAG_AGED	= BIT(0), /* Cancel aged locks (non lru resize). */
+	LDLM_LRU_FLAG_AGED	= BIT(0), /* Cancel old non-LRU resize locks */
 	LDLM_LRU_FLAG_PASSED	= BIT(1), /* Cancel passed number of locks. */
 	LDLM_LRU_FLAG_SHRINK	= BIT(2), /* Cancel locks from shrinker. */
 	LDLM_LRU_FLAG_LRUR	= BIT(3), /* Cancel locks from lru resize. */
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
index 22600c2a73ea..9efd26ec59dd 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index b5d84f3f6071..7cb61e2e7d3b 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -1035,7 +1036,8 @@ void ldlm_grant_lock(struct ldlm_lock *lock, struct list_head *work_list)
 		ldlm_extent_add_lock(res, lock);
 	} else if (res->lr_type == LDLM_FLOCK) {
 		/*
-		 * We should not add locks to granted list in the following cases:
+		 * We should not add locks to granted list in
+		 * the following cases:
 		 * - this is an UNLOCK but not a real lock;
 		 * - this is a TEST lock;
 		 * - this is a F_CANCELLK lock (async flock has req_mode == 0)
@@ -2051,13 +2053,16 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 		libcfs_debug_vmsg2(msgdata, fmt, args,
 				   " ns: \?\? lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: \?\? rrc=\?\? type: \?\?\? flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
 				   lock,
-				   lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
+				   lock->l_handle.h_cookie,
+				   atomic_read(&lock->l_refc),
 				   lock->l_readers, lock->l_writers,
 				   ldlm_lockname[lock->l_granted_mode],
 				   ldlm_lockname[lock->l_req_mode],
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
+				   lock->l_flags, nid,
+				   lock->l_remote_handle.cookie,
 				   exp ? atomic_read(&exp->exp_refcount) : -99,
-				   lock->l_pid, lock->l_callback_timeout, lock->l_lvb_type);
+				   lock->l_pid, lock->l_callback_timeout,
+				   lock->l_lvb_type);
 		va_end(args);
 		return;
 	}
@@ -2067,7 +2072,8 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 		libcfs_debug_vmsg2(msgdata, fmt, args,
 				   " ns: %s lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: " DLDLMRES " rrc: %d type: %s [%llu->%llu] (req %llu->%llu) flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu lvb_type: %d\n",
 				   ldlm_lock_to_ns_name(lock), lock,
-				   lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
+				   lock->l_handle.h_cookie,
+				   atomic_read(&lock->l_refc),
 				   lock->l_readers, lock->l_writers,
 				   ldlm_lockname[lock->l_granted_mode],
 				   ldlm_lockname[lock->l_req_mode],
@@ -2076,8 +2082,10 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 				   ldlm_typename[resource->lr_type],
 				   lock->l_policy_data.l_extent.start,
 				   lock->l_policy_data.l_extent.end,
-				   lock->l_req_extent.start, lock->l_req_extent.end,
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
+				   lock->l_req_extent.start,
+				   lock->l_req_extent.end,
+				   lock->l_flags, nid,
+				   lock->l_remote_handle.cookie,
 				   exp ? atomic_read(&exp->exp_refcount) : -99,
 				   lock->l_pid, lock->l_callback_timeout,
 				   lock->l_lvb_type);
@@ -2087,7 +2095,8 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 		libcfs_debug_vmsg2(msgdata, fmt, args,
 				   " ns: %s lock: %p/%#llx lrc: %d/%d,%d mode: %s/%s res: " DLDLMRES " rrc: %d type: %s pid: %d [%llu->%llu] flags: %#llx nid: %s remote: %#llx expref: %d pid: %u timeout: %lu\n",
 				   ldlm_lock_to_ns_name(lock), lock,
-				   lock->l_handle.h_cookie, atomic_read(&lock->l_refc),
+				   lock->l_handle.h_cookie,
+				   atomic_read(&lock->l_refc),
 				   lock->l_readers, lock->l_writers,
 				   ldlm_lockname[lock->l_granted_mode],
 				   ldlm_lockname[lock->l_req_mode],
@@ -2097,7 +2106,8 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 				   lock->l_policy_data.l_flock.pid,
 				   lock->l_policy_data.l_flock.start,
 				   lock->l_policy_data.l_flock.end,
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
+				   lock->l_flags, nid,
+				   lock->l_remote_handle.cookie,
 				   exp ? atomic_read(&exp->exp_refcount) : -99,
 				   lock->l_pid, lock->l_callback_timeout);
 		break;
@@ -2115,7 +2125,8 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 				   lock->l_policy_data.l_inodebits.bits,
 				   atomic_read(&resource->lr_refcount),
 				   ldlm_typename[resource->lr_type],
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
+				   lock->l_flags, nid,
+				   lock->l_remote_handle.cookie,
 				   exp ? atomic_read(&exp->exp_refcount) : -99,
 				   lock->l_pid, lock->l_callback_timeout,
 				   lock->l_lvb_type);
@@ -2133,7 +2144,8 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
 				   PLDLMRES(resource),
 				   atomic_read(&resource->lr_refcount),
 				   ldlm_typename[resource->lr_type],
-				   lock->l_flags, nid, lock->l_remote_handle.cookie,
+				   lock->l_flags, nid,
+				   lock->l_remote_handle.cookie,
 				   exp ? atomic_read(&exp->exp_refcount) : -99,
 				   lock->l_pid, lock->l_callback_timeout,
 				   lock->l_lvb_type);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index e2707336586c..2d5a2c932ddc 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -184,7 +185,8 @@ static void ldlm_handle_cp_callback(struct ptlrpc_request *req,
 			LASSERT(lock->l_lvb_data);
 
 			if (unlikely(lock->l_lvb_len < lvb_len)) {
-				LDLM_ERROR(lock, "Replied LVB is larger than expectation, expected = %d, replied = %d",
+				LDLM_ERROR(lock,
+					   "Replied LVB is larger than expectation, expected = %d, replied = %d",
 					   lock->l_lvb_len, lvb_len);
 				rc = -EINVAL;
 				goto out;
@@ -598,7 +600,8 @@ static int ldlm_callback_handler(struct ptlrpc_request *req)
 
 	lock = ldlm_handle2lock_long(&dlm_req->lock_handle[0], 0);
 	if (!lock) {
-		CDEBUG(D_DLMTRACE, "callback on lock %#llx - lock disappeared\n",
+		CDEBUG(D_DLMTRACE,
+		       "callback on lock %#llx - lock disappeared\n",
 		       dlm_req->lock_handle[0].cookie);
 		rc = ldlm_callback_reply(req, -EINVAL);
 		ldlm_callback_errmsg(req, "Operate with invalid parameter", rc,
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c b/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c
index 1ca605fe25ff..33b5a3f96fcb 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_plain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
index d77bf0baa84f..da65d00a7811 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_pool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -386,7 +387,8 @@ static int ldlm_pool_recalc(struct ldlm_pool *pl)
 			      pl->pl_recalc_period;
 	if (recalc_interval_sec <= 0) {
 		/* DEBUG: should be re-removed after LU-4536 is fixed */
-		CDEBUG(D_DLMTRACE, "%s: Negative interval(%ld), too short period(%ld)\n",
+		CDEBUG(D_DLMTRACE,
+		       "%s: Negative interval(%ld), too short period(%ld)\n",
 		       pl->pl_name, (long)recalc_interval_sec,
 		       (long)pl->pl_recalc_period);
 
@@ -415,7 +417,8 @@ static int ldlm_pool_shrink(struct ldlm_pool *pl, int nr, gfp_t gfp_mask)
 			lprocfs_counter_add(pl->pl_stats,
 					    LDLM_POOL_SHRINK_FREED_STAT,
 					    cancel);
-			CDEBUG(D_DLMTRACE, "%s: request to shrink %d locks, shrunk %d\n",
+			CDEBUG(D_DLMTRACE,
+			       "%s: request to shrink %d locks, shrunk %d\n",
 			       pl->pl_name, nr, cancel);
 		}
 	}
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index f3bf238d0748..02ea14c9b089 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -121,7 +122,8 @@ static int ldlm_expired_completion_wait(void *data)
 	if (!lock->l_conn_export) {
 		static unsigned long next_dump, last_dump;
 
-		LDLM_ERROR(lock, "lock timed out (enqueued at %lld, %llds ago); not entering recovery in server code, just going back to sleep",
+		LDLM_ERROR(lock,
+			   "lock timed out (enqueued at %lld, %llds ago); not entering recovery in server code, just going back to sleep",
 			   (s64)lock->l_last_activity,
 			   (s64)(ktime_get_real_seconds() -
 				 lock->l_last_activity));
@@ -139,7 +141,8 @@ static int ldlm_expired_completion_wait(void *data)
 	obd = lock->l_conn_export->exp_obd;
 	imp = obd->u.cli.cl_import;
 	ptlrpc_fail_import(imp, lwd->lwd_conn_cnt);
-	LDLM_ERROR(lock, "lock timed out (enqueued at %lld, %llds ago), entering recovery for %s@%s",
+	LDLM_ERROR(lock,
+		   "lock timed out (enqueued at %lld, %llds ago), entering recovery for %s@%s",
 		   (s64)lock->l_last_activity,
 		   (s64)(ktime_get_real_seconds() - lock->l_last_activity),
 		   obd2cli_tgt(obd), imp->imp_connection->c_remote_uuid.uuid);
@@ -218,7 +221,8 @@ int ldlm_completion_ast_async(struct ldlm_lock *lock, __u64 flags, void *data)
 		return ldlm_completion_tail(lock, data);
 	}
 
-	LDLM_DEBUG(lock, "client-side enqueue returned a blocked lock, going forward");
+	LDLM_DEBUG(lock,
+		   "client-side enqueue returned a blocked lock, going forward");
 	return 0;
 }
 EXPORT_SYMBOL(ldlm_completion_ast_async);
@@ -264,7 +268,8 @@ int ldlm_completion_ast(struct ldlm_lock *lock, __u64 flags, void *data)
 		return 0;
 	}
 
-	LDLM_DEBUG(lock, "client-side enqueue returned a blocked lock, sleeping");
+	LDLM_DEBUG(lock,
+		   "client-side enqueue returned a blocked lock, sleeping");
 
 noreproc:
 
@@ -414,7 +419,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 			rc = size;
 			goto cleanup;
 		} else if (unlikely(size > lvb_len)) {
-			LDLM_ERROR(lock, "Replied LVB is larger than expectation, expected = %d, replied = %d",
+			LDLM_ERROR(lock,
+				   "Replied LVB is larger than expectation, expected = %d, replied = %d",
 				   lvb_len, size);
 			rc = -EINVAL;
 			goto cleanup;
@@ -473,8 +479,8 @@ int ldlm_cli_enqueue_fini(struct obd_export *exp, struct ptlrpc_request *req,
 
 		if (!ldlm_res_eq(&reply->lock_desc.l_resource.lr_name,
 				 &lock->l_resource->lr_name)) {
-			CDEBUG(D_INFO, "remote intent success, locking " DLDLMRES
-				       " instead of " DLDLMRES "\n",
+			CDEBUG(D_INFO,
+			       "remote intent success, locking " DLDLMRES " instead of " DLDLMRES "\n",
 			       PLDLMRES(&reply->lock_desc.l_resource),
 			       PLDLMRES(lock->l_resource));
 
@@ -850,7 +856,8 @@ static __u64 ldlm_cli_cancel_local(struct ldlm_lock *lock)
 		unlock_res_and_lock(lock);
 
 		if (local_only) {
-			CDEBUG(D_DLMTRACE, "not sending request (at caller's instruction)\n");
+			CDEBUG(D_DLMTRACE,
+			       "not sending request (at caller's instruction)\n");
 			rc = LDLM_FL_LOCAL_ONLY;
 		}
 		ldlm_lock_cancel(lock);
@@ -963,7 +970,8 @@ static int ldlm_cli_cancel_req(struct obd_export *exp,
 
 		rc = ptlrpc_queue_wait(req);
 		if (rc == LUSTRE_ESTALE) {
-			CDEBUG(D_DLMTRACE, "client/server (nid %s) out of sync -- not fatal\n",
+			CDEBUG(D_DLMTRACE,
+			       "client/server (nid %s) out of sync -- not fatal\n",
 			       libcfs_nid2str(req->rq_import->
 					      imp_connection->c_peer.nid));
 			rc = 0;
@@ -1175,6 +1183,7 @@ ldlm_cancel_no_wait_policy(struct ldlm_namespace *ns, struct ldlm_lock *lock,
 	case LDLM_IBITS:
 		if (ns->ns_cancel && ns->ns_cancel(lock) != 0)
 			break;
+		/* fall through */
 	default:
 		result = LDLM_POLICY_SKIP_LOCK;
 		lock_res_and_lock(lock);
@@ -1363,13 +1372,14 @@ ldlm_cancel_lru_policy(struct ldlm_namespace *ns, int flags)
  * flags & LDLM_LRU_FLAG_LRUR	- use LRU resize policy (SLV from server) to
  *				  cancel not more than \a count locks;
  *
- * flags & LDLM_LRU_FLAG_PASSED - cancel \a count number of old locks (located at
- *				  the beginning of LRU list);
+ * flags & LDLM_LRU_FLAG_PASSED - cancel \a count number of old locks (located
+ *				  at the beginning of LRU list);
  *
- * flags & LDLM_LRU_FLAG_SHRINK - cancel not more than \a count locks according to
- *				  memory pressure policy function;
+ * flags & LDLM_LRU_FLAG_SHRINK - cancel not more than \a count locks according
+ *				  to memory pressure policy function;
  *
- * flags & LDLM_LRU_FLAG_AGED   - cancel \a count locks according to "aged policy".
+ * flags & LDLM_LRU_FLAG_AGED   - cancel \a count locks according to
+ *				  "aged policy".
  *
  * flags & LDLM_LRU_FLAG_NO_WAIT - cancel as many unused locks as possible
  *				   (typically before replaying locks) w/o
@@ -1383,7 +1393,8 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns,
 	ldlm_cancel_lru_policy_t pf;
 	struct ldlm_lock *lock, *next;
 	int added = 0, unused, remained;
-	int no_wait = flags & (LDLM_LRU_FLAG_NO_WAIT | LDLM_LRU_FLAG_LRUR_NO_WAIT);
+	int no_wait = flags &
+		(LDLM_LRU_FLAG_NO_WAIT | LDLM_LRU_FLAG_LRUR_NO_WAIT);
 
 	spin_lock(&ns->ns_lock);
 	unused = ns->ns_nr_unused;
@@ -2034,7 +2045,8 @@ static void ldlm_cancel_unused_locks_for_replay(struct ldlm_namespace *ns)
 	int canceled;
 	LIST_HEAD(cancels);
 
-	CDEBUG(D_DLMTRACE, "Dropping as many unused locks as possible before replay for namespace %s (%d)\n",
+	CDEBUG(D_DLMTRACE,
+	       "Dropping as many unused locks as possible before replay for namespace %s (%d)\n",
 	       ldlm_ns_name(ns), ns->ns_nr_unused);
 
 	/* We don't need to care whether or not LRU resize is enabled
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index c2ddf7312571..2689ffdf10e3 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -1358,7 +1359,8 @@ void ldlm_resource_dump(int level, struct ldlm_resource *res)
 			LDLM_DEBUG_LIMIT(level, lock, "###");
 			if (!(level & D_CANTMASK) &&
 			    ++granted > ldlm_dump_granted_max) {
-				CDEBUG(level, "only dump %d granted locks to avoid DDOS.\n",
+				CDEBUG(level,
+				       "only dump %d granted locks to avoid DDOS.\n",
 				       granted);
 				break;
 			}
diff --git a/drivers/staging/lustre/lustre/llite/Makefile b/drivers/staging/lustre/lustre/llite/Makefile
index ef7adef4ccc5..519fd747e3ad 100644
--- a/drivers/staging/lustre/lustre/llite/Makefile
+++ b/drivers/staging/lustre/lustre/llite/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/include
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
diff --git a/drivers/staging/lustre/lustre/llite/dcache.c b/drivers/staging/lustre/lustre/llite/dcache.c
index 3670fcaf373f..549369739d80 100644
--- a/drivers/staging/lustre/lustre/llite/dcache.c
+++ b/drivers/staging/lustre/lustre/llite/dcache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -141,7 +142,8 @@ void ll_intent_drop_lock(struct lookup_intent *it)
 
 		handle.cookie = it->it_lock_handle;
 
-		CDEBUG(D_DLMTRACE, "releasing lock with cookie %#llx from it %p\n",
+		CDEBUG(D_DLMTRACE,
+		       "releasing lock with cookie %#llx from it %p\n",
 		       handle.cookie, it);
 		ldlm_lock_decref(&handle, it->it_lock_mode);
 
@@ -152,7 +154,8 @@ void ll_intent_drop_lock(struct lookup_intent *it)
 		if (it->it_remote_lock_mode != 0) {
 			handle.cookie = it->it_remote_lock_handle;
 
-			CDEBUG(D_DLMTRACE, "releasing remote lock with cookie%#llx from it %p\n",
+			CDEBUG(D_DLMTRACE,
+			       "releasing remote lock with cookie%#llx from it %p\n",
 			       handle.cookie, it);
 			ldlm_lock_decref(&handle,
 					 it->it_remote_lock_mode);
@@ -185,7 +188,8 @@ void ll_invalidate_aliases(struct inode *inode)
 
 	spin_lock(&inode->i_lock);
 	hlist_for_each_entry(dentry, &inode->i_dentry, d_u.d_alias) {
-		CDEBUG(D_DENTRY, "dentry in drop %pd (%p) parent %p inode %p flags %d\n",
+		CDEBUG(D_DENTRY,
+		       "dentry in drop %pd (%p) parent %p inode %p flags %d\n",
 		       dentry, dentry, dentry->d_parent,
 		       d_inode(dentry), dentry->d_flags);
 
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 1db3e7f345c5..5b2e47c246f3 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -303,7 +304,8 @@ static int ll_readdir(struct file *filp, struct dir_context *ctx)
 	struct md_op_data *op_data;
 	int			rc;
 
-	CDEBUG(D_VFSTRACE, "VFS Op:inode=" DFID "(%p) pos/size %lu/%llu 32bit_api %d\n",
+	CDEBUG(D_VFSTRACE,
+	       "VFS Op:inode=" DFID "(%p) pos/size %lu/%llu 32bit_api %d\n",
 	       PFID(ll_inode2fid(inode)), inode, (unsigned long)pos,
 	       i_size_read(inode), api32);
 
@@ -502,7 +504,8 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
 			break;
 		}
 		default: {
-			CDEBUG(D_IOCTL, "bad userland LOV MAGIC: %#08x != %#08x nor %#08x\n",
+			CDEBUG(D_IOCTL,
+			       "bad userland LOV MAGIC: %#08x != %#08x nor %#08x\n",
 			       lump->lmm_magic, LOV_USER_MAGIC_V1,
 			       LOV_USER_MAGIC_V3);
 			return -EINVAL;
@@ -732,10 +735,10 @@ static int ll_ioc_copy_start(struct super_block *sb, struct hsm_copy *copy)
 		rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH);
 		iput(inode);
 		if (rc != 0) {
-			CDEBUG(D_HSM, "Could not read file data version of "
-				      DFID " (rc = %d). Archive request (%#llx) could not be done.\n",
-				      PFID(&copy->hc_hai.hai_fid), rc,
-				      copy->hc_hai.hai_cookie);
+			CDEBUG(D_HSM,
+			       "Could not read file data version of " DFID " (rc = %d). Archive request (%#llx) could not be done.\n",
+			       PFID(&copy->hc_hai.hai_fid), rc,
+			       copy->hc_hai.hai_cookie);
 			hpk.hpk_flags |= HP_FLAG_RETRY;
 			/* hpk_errval must be >= 0 */
 			hpk.hpk_errval = -rc;
@@ -816,7 +819,8 @@ static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
 		rc = ll_data_version(inode, &data_version, LL_DV_RD_FLUSH);
 		iput(inode);
 		if (rc) {
-			CDEBUG(D_HSM, "Could not read file data version. Request could not be confirmed.\n");
+			CDEBUG(D_HSM,
+			       "Could not read file data version. Request could not be confirmed.\n");
 			if (hpk.hpk_errval == 0)
 				hpk.hpk_errval = -rc;
 			goto progress;
@@ -832,8 +836,7 @@ static int ll_ioc_copy_end(struct super_block *sb, struct hsm_copy *copy)
 		 */
 		if ((copy->hc_hai.hai_action == HSMA_ARCHIVE) &&
 		    (copy->hc_data_version != data_version)) {
-			CDEBUG(D_HSM, "File data version mismatched. File content was changed during archiving. "
-			       DFID ", start:%#llx current:%#llx\n",
+			CDEBUG(D_HSM, "File data version mismatched. File content was changed during archiving. " DFID ", start:%#llx current:%#llx\n",
 			       PFID(&copy->hc_hai.hai_fid),
 			       copy->hc_data_version, data_version);
 			/* File was changed, send error to cdt. Do not ask for
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index be665454f407..2d6e64dea266 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -386,8 +387,8 @@ static int ll_intent_file_open(struct dentry *de, void *lmm, int lmmsize,
 	ll_finish_md_op_data(op_data);
 	if (rc == -ESTALE) {
 		/* reason for keep own exit path - don`t flood log
-		* with messages with -ESTALE errors.
-		*/
+		 * with messages with -ESTALE errors.
+		 */
 		if (!it_disposition(itp, DISP_OPEN_OPEN) ||
 		    it_open_error(DISP_OPEN_OPEN, itp))
 			goto out;
@@ -605,7 +606,8 @@ restart:
 			 * to get file with different fid.
 			 */
 			it->it_flags |= MDS_OPEN_LOCK | MDS_OPEN_BY_FID;
-			rc = ll_intent_file_open(file->f_path.dentry, NULL, 0, it);
+			rc = ll_intent_file_open(file->f_path.dentry,
+						 NULL, 0, it);
 			if (rc)
 				goto out_openerr;
 
@@ -1119,7 +1121,8 @@ out:
 	cl_io_fini(env, io);
 
 	if ((!rc || rc == -ENODATA) && count > 0 && io->ci_need_restart) {
-		CDEBUG(D_VFSTRACE, "%s: restart %s from %lld, count:%zu, result: %zd\n",
+		CDEBUG(D_VFSTRACE,
+		       "%s: restart %s from %lld, count:%zu, result: %zd\n",
 		       file_dentry(file)->d_name.name,
 		       iot == CIT_READ ? "read" : "write",
 		       *ppos, count, result);
@@ -3455,7 +3458,8 @@ out:
 		if (rc == 0)
 			rc = -EAGAIN;
 
-		CDEBUG(D_INODE, "%s: file=" DFID " waiting layout return: %d.\n",
+		CDEBUG(D_INODE,
+		       "%s: file=" DFID " waiting layout return: %d.\n",
 		       ll_get_fsname(inode->i_sb, NULL, 0),
 		       PFID(&lli->lli_fid), rc);
 	}
diff --git a/drivers/staging/lustre/lustre/llite/glimpse.c b/drivers/staging/lustre/lustre/llite/glimpse.c
index 34c2cfecf4b8..c43ac574274c 100644
--- a/drivers/staging/lustre/lustre/llite/glimpse.c
+++ b/drivers/staging/lustre/lustre/llite/glimpse.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/lcommon_cl.c b/drivers/staging/lustre/lustre/llite/lcommon_cl.c
index d2392e4c6872..df5c0c0ae703 100644
--- a/drivers/staging/lustre/lustre/llite/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/llite/lcommon_cl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/lcommon_misc.c b/drivers/staging/lustre/lustre/llite/lcommon_misc.c
index 422f410d95c1..a246b955306e 100644
--- a/drivers/staging/lustre/lustre/llite/lcommon_misc.c
+++ b/drivers/staging/lustre/lustre/llite/lcommon_misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index 0287c751e1cd..b133fd00c08c 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -84,7 +85,7 @@ struct ll_dentry_data {
 
 struct ll_getname_data {
 	struct dir_context ctx;
-	char	    *lgd_name;      /* points to a buffer with NAME_MAX+1 size */
+	char	    *lgd_name;      /* points to buffer with NAME_MAX+1 size */
 	struct lu_fid    lgd_fid;       /* target fid we are looking for */
 	int	      lgd_found;     /* inode matched? */
 };
@@ -392,7 +393,8 @@ enum stats_track_type {
 #define LL_SBI_XATTR_CACHE    0x80000 /* support for xattr cache */
 #define LL_SBI_NOROOTSQUASH	0x100000 /* do not apply root squash */
 #define LL_SBI_ALWAYS_PING	0x200000 /* always ping even if server
-					  * suppress_pings */
+					  * suppress_pings
+					  */
 
 #define LL_SBI_FLAGS {	\
 	"nolck",	\
@@ -637,7 +639,8 @@ static inline int ll_need_32bit_api(struct ll_sb_info *sbi)
 #if BITS_PER_LONG == 32
 	return 1;
 #elif defined(CONFIG_COMPAT)
-	return unlikely(in_compat_syscall() || (sbi->ll_flags & LL_SBI_32BIT_API));
+	return unlikely(in_compat_syscall() ||
+			(sbi->ll_flags & LL_SBI_32BIT_API));
 #else
 	return unlikely(sbi->ll_flags & LL_SBI_32BIT_API);
 #endif
@@ -1065,7 +1068,7 @@ struct ll_statahead_info {
 					     * hidden entries
 					     */
 				sai_agl_valid:1,/* AGL is valid for the dir */
-				sai_in_readpage:1;/* statahead is in readdir() */
+				sai_in_readpage:1;/* statahead in readdir() */
 	wait_queue_head_t	sai_waitq;      /* stat-ahead wait queue */
 	struct ptlrpc_thread    sai_thread;     /* stat-ahead thread */
 	struct ptlrpc_thread    sai_agl_thread; /* AGL thread */
@@ -1198,7 +1201,7 @@ typedef enum llioc_iter (*llioc_callback_t)(struct inode *inode,
  * Return value:
  *      A magic pointer will be returned if success;
  *      otherwise, NULL will be returned.
- * */
+ */
 void *ll_iocontrol_register(llioc_callback_t cb, int count, unsigned int *cmd);
 void ll_iocontrol_unregister(void *magic);
 
@@ -1261,7 +1264,8 @@ static inline void ll_set_lock_data(struct obd_export *exp, struct inode *inode,
 
 		handle.cookie = it->it_lock_handle;
 
-		CDEBUG(D_DLMTRACE, "setting l_data to inode " DFID "%p for lock %#llx\n",
+		CDEBUG(D_DLMTRACE,
+		       "setting l_data to inode " DFID "%p for lock %#llx\n",
 		       PFID(ll_inode2fid(inode)), inode, handle.cookie);
 
 		md_set_lock_data(exp, &handle, inode, &it->it_lock_bits);
@@ -1284,7 +1288,8 @@ static inline int d_lustre_invalid(const struct dentry *dentry)
  */
 static inline void d_lustre_invalidate(struct dentry *dentry, int nested)
 {
-	CDEBUG(D_DENTRY, "invalidate dentry %pd (%p) parent %p inode %p refc %d\n",
+	CDEBUG(D_DENTRY,
+	       "invalidate dentry %pd (%p) parent %p inode %p refc %d\n",
 	       dentry, dentry,
 	       dentry->d_parent, d_inode(dentry), d_count(dentry));
 
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index d855129768f8..65ac5128f005 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -210,7 +211,7 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 	data->ocd_ibits_known = MDS_INODELOCK_FULL;
 	data->ocd_version = LUSTRE_VERSION_CODE;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		data->ocd_connect_flags |= OBD_CONNECT_RDONLY;
 	if (sbi->ll_flags & LL_SBI_USER_XATTR)
 		data->ocd_connect_flags |= OBD_CONNECT_XATTR;
@@ -231,7 +232,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 	err = obd_connect(NULL, &sbi->ll_md_exp, obd, &sbi->ll_sb_uuid,
 			  data, NULL);
 	if (err == -EBUSY) {
-		LCONSOLE_ERROR_MSG(0x14f, "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n",
+		LCONSOLE_ERROR_MSG(0x14f,
+				   "An MDT (md %s) is performing recovery, of which this client is not a part. Please wait for recovery to complete, abort, or time out.\n",
 				   md);
 		goto out;
 	} else if (err) {
@@ -279,7 +281,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 		}
 		obd_connect_flags2str(buf, PAGE_SIZE,
 				      valid ^ CLIENT_CONNECT_MDT_REQD, ",");
-		LCONSOLE_ERROR_MSG(0x170, "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n",
+		LCONSOLE_ERROR_MSG(0x170,
+				   "Server %s does not support feature(s) needed for correct operation of this client (%s). Please upgrade server or downgrade client.\n",
 				   sbi->ll_md_exp->exp_obd->obd_name, buf);
 		kfree(buf);
 		err = -EPROTO;
@@ -380,7 +383,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 	if (sbi->ll_flags & LL_SBI_ALWAYS_PING)
 		data->ocd_connect_flags &= ~OBD_CONNECT_PINGLESS;
 
-	CDEBUG(D_RPCTRACE, "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n",
+	CDEBUG(D_RPCTRACE,
+	       "ocd_connect_flags: %#llx ocd_version: %d ocd_grant: %d\n",
 	       data->ocd_connect_flags,
 	       data->ocd_version, data->ocd_grant);
 
@@ -392,7 +396,8 @@ static int client_common_fill_super(struct super_block *sb, char *md, char *dt,
 	err = obd_connect(NULL, &sbi->ll_dt_exp, obd, &sbi->ll_sb_uuid, data,
 			  NULL);
 	if (err == -EBUSY) {
-		LCONSOLE_ERROR_MSG(0x150, "An OST (dt %s) is performing recovery, of which this client is not a part.  Please wait for recovery to complete, abort, or time out.\n",
+		LCONSOLE_ERROR_MSG(0x150,
+				   "An OST (dt %s) is performing recovery, of which this client is not a part.  Please wait for recovery to complete, abort, or time out.\n",
 				   dt);
 		goto out_md;
 	} else if (err) {
@@ -915,7 +920,8 @@ int ll_fill_super(struct super_block *sb, struct vfsmount *mnt)
 	/* Profile set with LCFG_MOUNTOPT so we can find our mdc and osc obds */
 	lprof = class_get_profile(profilenm);
 	if (!lprof) {
-		LCONSOLE_ERROR_MSG(0x156, "The client profile '%s' could not be read from the MGS.  Does that filesystem exist?\n",
+		LCONSOLE_ERROR_MSG(0x156,
+				   "The client profile '%s' could not be read from the MGS.  Does that filesystem exist?\n",
 				   profilenm);
 		err = -EINVAL;
 		goto out_free;
@@ -1042,7 +1048,8 @@ struct inode *ll_inode_from_resource_lock(struct ldlm_lock *lock)
 		} else {
 			inode = lock->l_resource->lr_lvb_inode;
 			LDLM_DEBUG_LIMIT(inode->i_state & I_FREEING ?  D_INFO :
-					 D_WARNING, lock, "lr_lvb_inode %p is bogus: magic %08x",
+					 D_WARNING, lock,
+					 "lr_lvb_inode %p is bogus: magic %08x",
 					 lock->l_resource->lr_lvb_inode,
 					 lli->lli_inode_magic);
 			inode = NULL;
@@ -1744,7 +1751,8 @@ int ll_update_inode(struct inode *inode, struct lustre_md *md)
 	}
 	if (body->mbo_valid & OBD_MD_FLMTIME) {
 		if (body->mbo_mtime > LTIME_S(inode->i_mtime)) {
-			CDEBUG(D_INODE, "setting ino %lu mtime from %lu to %llu\n",
+			CDEBUG(D_INODE,
+			       "setting ino %lu mtime from %lu to %llu\n",
 			       inode->i_ino, LTIME_S(inode->i_mtime),
 			       body->mbo_mtime);
 			LTIME_S(inode->i_mtime) = body->mbo_mtime;
@@ -2031,7 +2039,7 @@ int ll_remount_fs(struct super_block *sb, int *flags, char *data)
 	int err;
 	__u32 read_only;
 
-	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
+	if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
 		read_only = *flags & MS_RDONLY;
 		err = obd_set_info_async(NULL, sbi->ll_md_exp,
 					 sizeof(KEY_READ_ONLY),
@@ -2254,7 +2262,8 @@ int ll_process_config(struct lustre_cfg *lcfg)
 		return -EINVAL;
 	sb = (void *)x;
 	/* This better be a real Lustre superblock! */
-	LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic == LMD_MAGIC);
+	LASSERT(s2lsi((struct super_block *)sb)->lsi_lmd->lmd_magic ==
+		LMD_MAGIC);
 
 	/* Note we have not called client_common_fill_super yet, so
 	 * proc fns must be able to handle that!
@@ -2571,8 +2580,9 @@ static int ll_linkea_decode(struct linkea_data *ldata, unsigned int linkno,
  *
  * \param[in]	  file	- File descriptor against which to perform the operation
  * \param[in,out] arg	- User-filled structure containing the linkno to operate
- *			  on and the available size. It is eventually filled with
- *			  the requested information or left untouched on error
+ *			  on and the available size. It is eventually filled
+ *			  with the requested information or left untouched on
+ *			  error
  *
  * \retval - 0 on success
  * \retval - Appropriate negative error code on failure
diff --git a/drivers/staging/lustre/lustre/llite/llite_mmap.c b/drivers/staging/lustre/lustre/llite/llite_mmap.c
index ccc7ae15a943..c0533bd6f352 100644
--- a/drivers/staging/lustre/lustre/llite/llite_mmap.c
+++ b/drivers/staging/lustre/lustre/llite/llite_mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -208,7 +209,8 @@ static int ll_page_mkwrite0(struct vm_area_struct *vma, struct page *vmpage,
 			 */
 			unlock_page(vmpage);
 
-			CDEBUG(D_MMAP, "Race on page_mkwrite %p/%lu, page has been written out, retry.\n",
+			CDEBUG(D_MMAP,
+			       "Race on page_mkwrite %p/%lu, page has been written out, retry.\n",
 			       vmpage, vmpage->index);
 
 			*retry = true;
diff --git a/drivers/staging/lustre/lustre/llite/llite_nfs.c b/drivers/staging/lustre/lustre/llite/llite_nfs.c
index e50c637fab54..a6a1d80c711a 100644
--- a/drivers/staging/lustre/lustre/llite/llite_nfs.c
+++ b/drivers/staging/lustre/lustre/llite/llite_nfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -127,7 +128,8 @@ struct lustre_nfs_fid {
 };
 
 static struct dentry *
-ll_iget_for_nfs(struct super_block *sb, struct lu_fid *fid, struct lu_fid *parent)
+ll_iget_for_nfs(struct super_block *sb,
+		struct lu_fid *fid, struct lu_fid *parent)
 {
 	struct inode  *inode;
 	struct dentry *result;
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index e3bd2d18eac5..644bea2f9d37 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 4897dbd3286d..a2687f46a16d 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -204,7 +205,8 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 
 		if (!fid_res_name_eq(ll_inode2fid(inode),
 				     &lock->l_resource->lr_name)) {
-			LDLM_ERROR(lock, "data mismatch with object " DFID "(%p)",
+			LDLM_ERROR(lock,
+				   "data mismatch with object " DFID "(%p)",
 				   PFID(ll_inode2fid(inode)), inode);
 			LBUG();
 		}
@@ -289,7 +291,8 @@ int ll_md_blocking_ast(struct ldlm_lock *lock, struct ldlm_lock_desc *desc,
 				 * we have to invalidate the negative children
 				 * on master inode
 				 */
-				CDEBUG(D_INODE, "Invalidate s" DFID " m" DFID "\n",
+				CDEBUG(D_INODE,
+				       "Invalidate s" DFID " m" DFID "\n",
 				       PFID(ll_inode2fid(inode)),
 				       PFID(&lli->lli_pfid));
 
@@ -561,8 +564,7 @@ static struct dentry *ll_lookup_it(struct inode *parent, struct dentry *dentry,
 		}
 	}
 
-	if (it->it_op & IT_OPEN && it->it_flags & FMODE_WRITE &&
-	    dentry->d_sb->s_flags & MS_RDONLY)
+	if (it->it_op & IT_OPEN && it->it_flags & FMODE_WRITE && sb_rdonly(dentry->d_sb))
 		return ERR_PTR(-EROFS);
 
 	if (it->it_op & IT_CREAT)
@@ -737,7 +739,8 @@ static int ll_atomic_open(struct inode *dir, struct dentry *dentry,
 
 			*opened |= FILE_CREATED;
 		}
-		if (d_really_is_positive(dentry) && it_disposition(it, DISP_OPEN_OPEN)) {
+		if (d_really_is_positive(dentry) &&
+		    it_disposition(it, DISP_OPEN_OPEN)) {
 			/* Open dentry. */
 			if (S_ISFIFO(d_inode(dentry)->i_mode)) {
 				/* We cannot call open here as it might
@@ -950,7 +953,9 @@ static int ll_mknod(struct inode *dir, struct dentry *dchild,
 
 	switch (mode & S_IFMT) {
 	case 0:
-		mode |= S_IFREG; /* for mode = 0 case, fallthrough */
+		mode |= S_IFREG;
+		/* for mode = 0 case */
+		/* fall through */
 	case S_IFREG:
 	case S_IFCHR:
 	case S_IFBLK:
@@ -981,7 +986,8 @@ static int ll_create_nd(struct inode *dir, struct dentry *dentry,
 {
 	int rc;
 
-	CDEBUG(D_VFSTRACE, "VFS Op:name=%pd, dir=" DFID "(%p), flags=%u, excl=%d\n",
+	CDEBUG(D_VFSTRACE,
+	       "VFS Op:name=%pd, dir=" DFID "(%p), flags=%u, excl=%d\n",
 	       dentry, PFID(ll_inode2fid(dir)), dir, mode, want_excl);
 
 	rc = ll_mknod(dir, dentry, mode, 0);
@@ -1102,7 +1108,8 @@ static int ll_link(struct dentry *old_dentry, struct inode *dir,
 	struct md_op_data *op_data;
 	int err;
 
-	CDEBUG(D_VFSTRACE, "VFS Op: inode=" DFID "(%p), dir=" DFID "(%p), target=%pd\n",
+	CDEBUG(D_VFSTRACE,
+	       "VFS Op: inode=" DFID "(%p), dir=" DFID "(%p), target=%pd\n",
 	       PFID(ll_inode2fid(src)), src, PFID(ll_inode2fid(dir)), dir,
 	       new_dentry);
 
diff --git a/drivers/staging/lustre/lustre/llite/range_lock.c b/drivers/staging/lustre/lustre/llite/range_lock.c
index a32598bacdfb..cc9565f6bfe2 100644
--- a/drivers/staging/lustre/lustre/llite/range_lock.c
+++ b/drivers/staging/lustre/lustre/llite/range_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/range_lock.h b/drivers/staging/lustre/lustre/llite/range_lock.h
index 1e1519b1e006..38b2be4e378f 100644
--- a/drivers/staging/lustre/lustre/llite/range_lock.h
+++ b/drivers/staging/lustre/lustre/llite/range_lock.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index e72090572bcc..3e008ce7275d 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -297,7 +298,8 @@ stride_pg_count(pgoff_t st_off, unsigned long st_len, unsigned long st_pgs,
 	else
 		pg_count = start_left + st_pgs * (end - start - 1) + end_left;
 
-	CDEBUG(D_READA, "st_off %lu, st_len %lu st_pgs %lu off %lu length %lu pgcount %lu\n",
+	CDEBUG(D_READA,
+	       "st_off %lu, st_len %lu st_pgs %lu off %lu length %lu pgcount %lu\n",
 	       st_off, st_len, st_pgs, off, length, pg_count);
 
 	return pg_count;
@@ -404,7 +406,8 @@ ll_read_ahead_pages(const struct lu_env *env, struct cl_io *io,
 			 * forward read-ahead, it will be fixed when backward
 			 * read-ahead is implemented
 			 */
-			LASSERTF(page_idx >= ria->ria_stoff, "Invalid page_idx %lu rs %lu re %lu ro %lu rl %lu rp %lu\n",
+			LASSERTF(page_idx >= ria->ria_stoff,
+				 "Invalid page_idx %lu rs %lu re %lu ro %lu rl %lu rp %lu\n",
 				 page_idx,
 				 ria->ria_start, ria->ria_end, ria->ria_stoff,
 				 ria->ria_length, ria->ria_pages);
@@ -669,8 +672,9 @@ static void ras_stride_increase_window(struct ll_readahead_state *ras,
 	unsigned long stride_len;
 
 	LASSERT(ras->ras_stride_length > 0);
-	LASSERTF(ras->ras_window_start + ras->ras_window_len
-		 >= ras->ras_stride_offset, "window_start %lu, window_len %lu stride_offset %lu\n",
+	LASSERTF(ras->ras_window_start + ras->ras_window_len >=
+		 ras->ras_stride_offset,
+		 "window_start %lu, window_len %lu stride_offset %lu\n",
 		 ras->ras_window_start,
 		 ras->ras_window_len, ras->ras_stride_offset);
 
@@ -766,7 +770,8 @@ static void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 			    PAGE_SHIFT;
 
 		CDEBUG(D_READA, "kmsp %llu mwp %lu mp %lu\n", kms_pages,
-		       ra->ra_max_read_ahead_whole_pages, ra->ra_max_pages_per_file);
+		       ra->ra_max_read_ahead_whole_pages,
+		       ra->ra_max_pages_per_file);
 
 		if (kms_pages &&
 		    kms_pages <= ra->ra_max_read_ahead_whole_pages) {
@@ -884,7 +889,8 @@ static void ras_update(struct ll_sb_info *sbi, struct inode *inode,
 
 	/* The initial ras_window_len is set to the request size.  To avoid
 	 * uselessly reading and discarding pages for random IO the window is
-	 * only increased once per consecutive request received. */
+	 * only increased once per consecutive request received.
+	 */
 	if ((ras->ras_consecutive_requests > 1 || stride_detect) &&
 	    !ras->ras_request_index)
 		ras_increase_window(inode, ras, ra);
diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 3619cd8bb5f3..722e5ea1af5f 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
index ea9d59f07b78..90c7324575e4 100644
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ b/drivers/staging/lustre/lustre/llite/statahead.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -1082,7 +1083,8 @@ static int ll_statahead_thread(void *arg)
 					struct ll_inode_info *clli;
 
 					clli = list_entry(sai->sai_agls.next,
-							  struct ll_inode_info, lli_agl_list);
+							  struct ll_inode_info,
+							  lli_agl_list);
 					list_del_init(&clli->lli_agl_list);
 					spin_unlock(&lli->lli_agl_lock);
 
diff --git a/drivers/staging/lustre/lustre/llite/super25.c b/drivers/staging/lustre/lustre/llite/super25.c
index 0da4af81b830..0bda111a096e 100644
--- a/drivers/staging/lustre/lustre/llite/super25.c
+++ b/drivers/staging/lustre/lustre/llite/super25.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -88,7 +89,8 @@ static int __init lustre_init(void)
 	struct timespec64 ts;
 	int i, rc, seed[2];
 
-	BUILD_BUG_ON(sizeof(LUSTRE_VOLATILE_HDR) != LUSTRE_VOLATILE_HDR_LEN + 1);
+	BUILD_BUG_ON(sizeof(LUSTRE_VOLATILE_HDR) !=
+		     LUSTRE_VOLATILE_HDR_LEN + 1);
 
 	/* print an address of _any_ initialized kernel symbol from this
 	 * module, to allow debugging with gdb that doesn't support data
diff --git a/drivers/staging/lustre/lustre/llite/symlink.c b/drivers/staging/lustre/lustre/llite/symlink.c
index 3cd33483afaf..0690fdbf49f5 100644
--- a/drivers/staging/lustre/lustre/llite/symlink.c
+++ b/drivers/staging/lustre/lustre/llite/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index f9d9a161bd4e..8ccc8b799c02 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/vvp_internal.h b/drivers/staging/lustre/lustre/llite/vvp_internal.h
index adce0ff4ae44..02ea5161d635 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_internal.h
+++ b/drivers/staging/lustre/lustre/llite/vvp_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index c83853fa1bb4..bfae98e82d6f 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/vvp_lock.c b/drivers/staging/lustre/lustre/llite/vvp_lock.c
index e522f7c00617..4b6c7143bd2c 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_lock.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/vvp_object.c b/drivers/staging/lustre/lustre/llite/vvp_object.c
index 3953750b334e..05ad3b322a29 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_object.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_object.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/vvp_page.c b/drivers/staging/lustre/lustre/llite/vvp_page.c
index 687c0c79d621..6eb0565ddc22 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_page.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_page.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/xattr.c b/drivers/staging/lustre/lustre/llite/xattr.c
index 0be55623bac4..532384c91447 100644
--- a/drivers/staging/lustre/lustre/llite/xattr.c
+++ b/drivers/staging/lustre/lustre/llite/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/llite/xattr_cache.c b/drivers/staging/lustre/lustre/llite/xattr_cache.c
index 80ee3920481a..4dc799d60a9f 100644
--- a/drivers/staging/lustre/lustre/llite/xattr_cache.c
+++ b/drivers/staging/lustre/lustre/llite/xattr_cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2012 Xyratex Technology Limited
  *
@@ -364,7 +365,8 @@ static int ll_xattr_cache_refill(struct inode *inode, struct lookup_intent *oit)
 	}
 
 	if (oit->it_status < 0) {
-		CDEBUG(D_CACHE, "getxattr intent returned %d for fid " DFID "\n",
+		CDEBUG(D_CACHE,
+		       "getxattr intent returned %d for fid " DFID "\n",
 		       oit->it_status, PFID(ll_inode2fid(inode)));
 		rc = oit->it_status;
 		/* xattr data is so large that we don't want to cache it */
diff --git a/drivers/staging/lustre/lustre/llite/xattr_security.c b/drivers/staging/lustre/lustre/llite/xattr_security.c
index 391fb25ac31d..93ec07531ac7 100644
--- a/drivers/staging/lustre/lustre/llite/xattr_security.c
+++ b/drivers/staging/lustre/lustre/llite/xattr_security.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_fld.c b/drivers/staging/lustre/lustre/lmv/lmv_fld.c
index 5937468080b8..00dc858c10c9 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_fld.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_fld.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_intent.c b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
index 22c247a7d8ca..1793c9f79b24 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_intent.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_intent.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_internal.h b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
index a0475231dd90..c27c3c32188d 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_internal.h
+++ b/drivers/staging/lustre/lustre/lmv/lmv_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lmv/lmv_obd.c b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
index 6e16c930a021..c2c57f65431e 100644
--- a/drivers/staging/lustre/lustre/lmv/lmv_obd.c
+++ b/drivers/staging/lustre/lustre/lmv/lmv_obd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
index f16cfa435f77..30727b7acccc 100644
--- a/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
+++ b/drivers/staging/lustre/lustre/lmv/lproc_lmv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/Makefile b/drivers/staging/lustre/lustre/lov/Makefile
index 3abfb4eab3d3..1ebf0193f61a 100644
--- a/drivers/staging/lustre/lustre/lov/Makefile
+++ b/drivers/staging/lustre/lustre/lov/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/include
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
index 89d92b05b48c..1185eceaf497 100644
--- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index cea5f9dcd04e..c7db23472346 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index 1124fd5ab32f..d563dd73343a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
index a21f074008af..ae28ddf80d9b 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index 9e3b150967b4..c5f5d1b106dc 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index e12dc5afc14f..2fcdeb707ff9 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_merge.c b/drivers/staging/lustre/lustre/lov/lov_merge.c
index 916336115989..3796bbb25305 100644
--- a/drivers/staging/lustre/lustre/lov/lov_merge.c
+++ b/drivers/staging/lustre/lustre/lov/lov_merge.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index fefd3c588681..7ce01026a409 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index 334ecb1bc049..105b707eed14 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_offset.c b/drivers/staging/lustre/lustre/lov/lov_offset.c
index 899d12c41aab..3e16e647b334 100644
--- a/drivers/staging/lustre/lustre/lov/lov_offset.c
+++ b/drivers/staging/lustre/lustre/lov/lov_offset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index 24fb2a97532b..e5b11c4085a9 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_page.c b/drivers/staging/lustre/lustre/lov/lov_page.c
index de43c609cf3d..cfae1294d77a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_page.c
+++ b/drivers/staging/lustre/lustre/lov/lov_page.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c
index d774ee2a3675..ecd9329cd073 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pool.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index 9d3b3f3e9f10..3bdf48e4edb4 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_dev.c b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
index d4646a0949d2..7e89a2e485fc 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_lock.c b/drivers/staging/lustre/lustre/lov/lovsub_lock.c
index d29f0bb33980..ea492be2eef3 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_object.c b/drivers/staging/lustre/lustre/lov/lovsub_object.c
index 011296ee16e6..13d452086b61 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_object.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_object.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lovsub_page.c b/drivers/staging/lustre/lustre/lov/lovsub_page.c
index b2e68c3e820d..915520bcdd60 100644
--- a/drivers/staging/lustre/lustre/lov/lovsub_page.c
+++ b/drivers/staging/lustre/lustre/lov/lovsub_page.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/lov/lproc_lov.c b/drivers/staging/lustre/lustre/lov/lproc_lov.c
index 9bb7e9ea0a6a..721440feef72 100644
--- a/drivers/staging/lustre/lustre/lov/lproc_lov.c
+++ b/drivers/staging/lustre/lustre/lov/lproc_lov.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
index f68513771527..6cce32491eb5 100644
--- a/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
+++ b/drivers/staging/lustre/lustre/mdc/lproc_mdc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_internal.h b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
index cbf011501005..e0300c34ca3a 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_internal.h
+++ b/drivers/staging/lustre/lustre/mdc/mdc_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_lib.c b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
index ba13f0894e0d..46eefdc09e3a 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_lib.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_locks.c b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
index cbfea3dd0319..3114907ac5ff 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_locks.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_locks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_reint.c b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
index f45c91d1b4ae..488b98007558 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_reint.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_reint.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mdc/mdc_request.c b/drivers/staging/lustre/lustre/mdc/mdc_request.c
index 6ef8ddec4ab6..9e538a59f09d 100644
--- a/drivers/staging/lustre/lustre/mdc/mdc_request.c
+++ b/drivers/staging/lustre/lustre/mdc/mdc_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mgc/lproc_mgc.c b/drivers/staging/lustre/lustre/mgc/lproc_mgc.c
index 2ec2d7f731d3..636770624e8f 100644
--- a/drivers/staging/lustre/lustre/mgc/lproc_mgc.c
+++ b/drivers/staging/lustre/lustre/mgc/lproc_mgc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_internal.h b/drivers/staging/lustre/lustre/mgc/mgc_internal.h
index 7a2f2b7bc6b1..2c571c180578 100644
--- a/drivers/staging/lustre/lustre/mgc/mgc_internal.h
+++ b/drivers/staging/lustre/lustre/mgc/mgc_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/mgc/mgc_request.c b/drivers/staging/lustre/lustre/mgc/mgc_request.c
index 3d2b969c90a7..77fa8fea0249 100644
--- a/drivers/staging/lustre/lustre/mgc/mgc_request.c
+++ b/drivers/staging/lustre/lustre/mgc/mgc_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/Makefile b/drivers/staging/lustre/lustre/obdclass/Makefile
index fa0ad6548ecd..e3fa9acff4c4 100644
--- a/drivers/staging/lustre/lustre/obdclass/Makefile
+++ b/drivers/staging/lustre/lustre/obdclass/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/include
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_internal.h b/drivers/staging/lustre/lustre/obdclass/cl_internal.h
index 7b403fbd5f94..a0db830ca841 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_internal.h
+++ b/drivers/staging/lustre/lustre/obdclass/cl_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c
index 2a70e21ae07f..6ec5218a18c1 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_io.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_lock.c b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
index 20e64051d2d6..d415f8396038 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_lock.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
index 95c7fa3b532c..fdd27ce46fda 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c
index 3dc084cb93bc..7f65439f9b95 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_page.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index 2df218b010e1..2985bca4dc4c 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/debug.c b/drivers/staging/lustre/lustre/obdclass/debug.c
index 7964cad7e780..2156a82a613a 100644
--- a/drivers/staging/lustre/lustre/obdclass/debug.c
+++ b/drivers/staging/lustre/lustre/obdclass/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
index 739bfb9421ca..b1d6ba4a3190 100644
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ b/drivers/staging/lustre/lustre/obdclass/genops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/kernelcomm.c b/drivers/staging/lustre/lustre/obdclass/kernelcomm.c
index 8f0707a27a83..b9bf81607bbf 100644
--- a/drivers/staging/lustre/lustre/obdclass/kernelcomm.c
+++ b/drivers/staging/lustre/lustre/obdclass/kernelcomm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -52,7 +53,6 @@ int libcfs_kkuc_msg_put(struct file *filp, void *payload)
 	struct kuc_hdr *kuch = (struct kuc_hdr *)payload;
 	ssize_t count = kuch->kuc_msglen;
 	loff_t offset = 0;
-	mm_segment_t fs;
 	int rc = -ENXIO;
 
 	if (IS_ERR_OR_NULL(filp))
@@ -63,18 +63,14 @@ int libcfs_kkuc_msg_put(struct file *filp, void *payload)
 		return rc;
 	}
 
-	fs = get_fs();
-	set_fs(KERNEL_DS);
 	while (count > 0) {
-		rc = vfs_write(filp, (void __force __user *)payload,
-			       count, &offset);
+		rc = kernel_write(filp, payload, count, &offset);
 		if (rc < 0)
 			break;
 		count -= rc;
 		payload += rc;
 		rc = 0;
 	}
-	set_fs(fs);
 
 	if (rc < 0)
 		CWARN("message send failed (%d)\n", rc);
diff --git a/drivers/staging/lustre/lustre/obdclass/linkea.c b/drivers/staging/lustre/lustre/obdclass/linkea.c
index 9af86d3d56e4..fe1638b0916e 100644
--- a/drivers/staging/lustre/lustre/obdclass/linkea.c
+++ b/drivers/staging/lustre/lustre/obdclass/linkea.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
index 6df911112731..fc59f29a4290 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
index e92cccceefa1..e5e8687784ee 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/llog.c b/drivers/staging/lustre/lustre/obdclass/llog.c
index 98021a2d7238..cd051e31233e 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_cat.c b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
index 8fa969101650..d9c63adff206 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_cat.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_cat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_internal.h b/drivers/staging/lustre/lustre/obdclass/llog_internal.h
index 8de90bc638b4..4991d4e589dc 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_internal.h
+++ b/drivers/staging/lustre/lustre/obdclass/llog_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_obd.c b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
index 3c42de966077..28bbaa2136ac 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_swab.c b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
index d2d3114ce008..b431c3408fe4 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_swab.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_swab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
index e4829880dc10..c83b7d7f8e72 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_counters.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index e79485b4bf7f..05d71f568837 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -1507,12 +1508,16 @@ int lprocfs_write_frac_u64_helper(const char __user *buffer,
 		switch (tolower(*end)) {
 		case 'p':
 			units <<= 10;
+			/* fall through */
 		case 't':
 			units <<= 10;
+			/* fall through */
 		case 'g':
 			units <<= 10;
+			/* fall through */
 		case 'm':
 			units <<= 10;
+			/* fall through */
 		case 'k':
 			units <<= 10;
 		}
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index 09c98184a291..b938a3f9d50a 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_ref.c b/drivers/staging/lustre/lustre/obdclass/lu_ref.c
index fa690b2bd643..54fc88206534 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_ref.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_ref.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
index e1273c997b5f..71329adc0318 100644
--- a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
+++ b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
index 2798d35ad318..e286a2665423 100644
--- a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
+++ b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
index 94a940faca5d..c0e192ae22a9 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
index 1256034b60c1..2a79a223b98a 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/obdo.c b/drivers/staging/lustre/lustre/obdclass/obdo.c
index 7083f8786e9a..c4503bc36591 100644
--- a/drivers/staging/lustre/lustre/obdclass/obdo.c
+++ b/drivers/staging/lustre/lustre/obdclass/obdo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/statfs_pack.c b/drivers/staging/lustre/lustre/obdclass/statfs_pack.c
index 89abea26a1f8..355e888885f4 100644
--- a/drivers/staging/lustre/lustre/obdclass/statfs_pack.c
+++ b/drivers/staging/lustre/lustre/obdclass/statfs_pack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdclass/uuid.c b/drivers/staging/lustre/lustre/obdclass/uuid.c
index 9b1872b99f2a..6cf7a03f048f 100644
--- a/drivers/staging/lustre/lustre/obdclass/uuid.c
+++ b/drivers/staging/lustre/lustre/obdclass/uuid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index f9808d1cc352..b9c1dc7e61b0 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_internal.h b/drivers/staging/lustre/lustre/obdecho/echo_internal.h
index 966414fd5424..42faa164fabb 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_internal.h
+++ b/drivers/staging/lustre/lustre/obdecho/echo_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c
index ae13eb055229..dc76c35ae801 100644
--- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
+++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
index e1207c227b79..5767ac2a7d16 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ b/drivers/staging/lustre/lustre/osc/osc_cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -227,6 +228,7 @@ static int osc_extent_sanity_check0(struct osc_extent *ext,
 			rc = 65;
 			goto out;
 		}
+		/* fall through */
 	default:
 		if (atomic_read(&ext->oe_users) > 0) {
 			rc = 70;
diff --git a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
index 35bdbfb8660d..1449013722f6 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
+++ b/drivers/staging/lustre/lustre/osc/osc_cl_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_dev.c b/drivers/staging/lustre/lustre/osc/osc_dev.c
index cf7b8879d7f0..2b5f324743e2 100644
--- a/drivers/staging/lustre/lustre/osc/osc_dev.c
+++ b/drivers/staging/lustre/lustre/osc/osc_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_internal.h b/drivers/staging/lustre/lustre/osc/osc_internal.h
index a536908fb26a..feda61bcdb9b 100644
--- a/drivers/staging/lustre/lustre/osc/osc_internal.h
+++ b/drivers/staging/lustre/lustre/osc/osc_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c
index f7969e33f28a..76743faf3e6d 100644
--- a/drivers/staging/lustre/lustre/osc/osc_io.c
+++ b/drivers/staging/lustre/lustre/osc/osc_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c
index b4f1f74dead8..fe8ed0d0497a 100644
--- a/drivers/staging/lustre/lustre/osc/osc_lock.c
+++ b/drivers/staging/lustre/lustre/osc/osc_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_object.c b/drivers/staging/lustre/lustre/osc/osc_object.c
index 945ae6e5a8b1..f82c87a77550 100644
--- a/drivers/staging/lustre/lustre/osc/osc_object.c
+++ b/drivers/staging/lustre/lustre/osc/osc_object.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c
index ed8a0dc18ee5..20094b6309f9 100644
--- a/drivers/staging/lustre/lustre/osc/osc_page.c
+++ b/drivers/staging/lustre/lustre/osc/osc_page.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_quota.c b/drivers/staging/lustre/lustre/osc/osc_quota.c
index a6118f8ba446..ce1731dc604f 100644
--- a/drivers/staging/lustre/lustre/osc/osc_quota.c
+++ b/drivers/staging/lustre/lustre/osc/osc_quota.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index 4c68c42b2281..53eda4c99142 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/Makefile b/drivers/staging/lustre/lustre/ptlrpc/Makefile
index a518001cdfe8..1deb1971b39e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/Makefile
+++ b/drivers/staging/lustre/lustre/ptlrpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/include
 subdir-ccflags-y += -I$(srctree)/drivers/staging/lustre/lustre/include
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c
index b1d379a6a70f..2a9f2f2ebaa8 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/connection.c b/drivers/staging/lustre/lustre/ptlrpc/connection.c
index cfdcbcec2779..dfdb4587d49d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/connection.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/connection.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/errno.c b/drivers/staging/lustre/lustre/ptlrpc/errno.c
index cb788364a553..54f0c36dc2bd 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/errno.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/errno.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/events.c b/drivers/staging/lustre/lustre/ptlrpc/events.c
index 62951f19b2ce..811b7ab3a582 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/events.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/events.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c
index 21f528957b73..5b0f65536c29 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/import.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/import.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c
index 85854d9a376d..18769d335751 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/layout.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
index 480c20a6a792..254488be7093 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/llog_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/llog_net.c b/drivers/staging/lustre/lustre/ptlrpc/llog_net.c
index bc5aa7bcdba8..bc4398b9bd1d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/llog_net.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/llog_net.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
index 1392ae9747bd..36eea50a77e7 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/lproc_ptlrpc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
index 12149fb64719..047d712e850c 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/niobuf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs.c b/drivers/staging/lustre/lustre/ptlrpc/nrs.c
index 2969d8da270e..4847f9a90cc9 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/nrs.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/nrs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c b/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c
index df330e43bfe5..8251cbf2ad68 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/nrs_fifo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
index aad4ff191d95..a64e125df95f 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pack_generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -786,7 +787,7 @@ __u32 lustre_msg_get_flags(struct lustre_msg *msg)
 
 		CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 	}
-	/* no break */
+	/* fall through */
 	default:
 		/* flags might be printed in debug code while message
 		 * uninitialized
@@ -854,7 +855,7 @@ __u32 lustre_msg_get_op_flags(struct lustre_msg *msg)
 
 		CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 	}
-	/* no break */
+	/* fall through */
 	default:
 		return 0;
 	}
@@ -1035,7 +1036,7 @@ int lustre_msg_get_status(struct lustre_msg *msg)
 
 		CERROR("invalid msg %p: no ptlrpc body!\n", msg);
 	}
-	/* no break */
+	/* fall through */
 	default:
 		/* status might be printed in debug code while message
 		 * uninitialized
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pers.c b/drivers/staging/lustre/lustre/ptlrpc/pers.c
index 643388b03af7..2466868afb9c 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pers.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
index e4de50e18d08..fe6b47bfe8be 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
index c38e166f1502..f9decbd1459d 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_internal.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c
index 38e488dd5409..131fc6d9646e 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpc_module.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
index 0e476828cf75..8b865294d933 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/ptlrpcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/recover.c b/drivers/staging/lustre/lustre/ptlrpc/recover.c
index 72a19a379e2f..e4d3f23e9f3a 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/recover.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/recover.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
index cd7a5391a574..617e004d00f8 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
@@ -847,7 +848,7 @@ void sptlrpc_request_out_callback(struct ptlrpc_request *req)
 	if (req->rq_pool || !req->rq_reqbuf)
 		return;
 
-	kfree(req->rq_reqbuf);
+	kvfree(req->rq_reqbuf);
 	req->rq_reqbuf = NULL;
 	req->rq_reqbuf_len = 0;
 }
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
index 059294aad172..77a3721beaee 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_config.c b/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
index 0f4af66688a3..2389f9a8f534 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c b/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c
index d10a8053d04f..8d1e0edfcede 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_gc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c b/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
index 7792132eb145..fd609b63d2de 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_lproc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_null.c b/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
index dc39a54c5e1a..80cea0b24693 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
index 6aa9b65b1926..44e34056515b 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index 155f6a45cc8b..23cdb7c4476c 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
index 07b86a1b6550..2f64eb417e77 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/wiretest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * GPL HEADER START
  *
diff --git a/drivers/staging/media/Makefile b/drivers/staging/media/Makefile
index ac090c5fce30..be732cf932fd 100644
--- a/drivers/staging/media/Makefile
+++ b/drivers/staging/media/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_I2C_BCM2048)	+= bcm2048/
 obj-$(CONFIG_DVB_CXD2099)	+= cxd2099/
 obj-$(CONFIG_VIDEO_IMX_MEDIA)	+= imx/
diff --git a/drivers/staging/media/atomisp/i2c/Makefile b/drivers/staging/media/atomisp/i2c/Makefile
index be13fab92175..041a041718d2 100644
--- a/drivers/staging/media/atomisp/i2c/Makefile
+++ b/drivers/staging/media/atomisp/i2c/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for sensor drivers
 #
diff --git a/drivers/staging/media/atomisp/i2c/imx/Makefile b/drivers/staging/media/atomisp/i2c/imx/Makefile
index b6578f09546e..c1a85e6e27a9 100644
--- a/drivers/staging/media/atomisp/i2c/imx/Makefile
+++ b/drivers/staging/media/atomisp/i2c/imx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIDEO_IMX) += imx1x5.o
 
 imx1x5-objs := imx.o drv201.o ad5816g.o dw9714.o dw9719.o dw9718.o vcm.o otp.o otp_imx.o otp_brcc064_e2prom.o otp_e2prom.o
diff --git a/drivers/staging/media/atomisp/i2c/imx/ad5816g.c b/drivers/staging/media/atomisp/i2c/imx/ad5816g.c
index 558dcdf135d9..fb74f14cbe5a 100644
--- a/drivers/staging/media/atomisp/i2c/imx/ad5816g.c
+++ b/drivers/staging/media/atomisp/i2c/imx/ad5816g.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/device.h>
 #include <linux/delay.h>
diff --git a/drivers/staging/media/atomisp/i2c/imx/ad5816g.h b/drivers/staging/media/atomisp/i2c/imx/ad5816g.h
index f995c2eeada4..e1396b00a0e1 100644
--- a/drivers/staging/media/atomisp/i2c/imx/ad5816g.h
+++ b/drivers/staging/media/atomisp/i2c/imx/ad5816g.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AD5816G_H__
 #define __AD5816G_H__
 
diff --git a/drivers/staging/media/atomisp/i2c/imx/common.h b/drivers/staging/media/atomisp/i2c/imx/common.h
index 7e525cef56ef..af2e3160df95 100644
--- a/drivers/staging/media/atomisp/i2c/imx/common.h
+++ b/drivers/staging/media/atomisp/i2c/imx/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __COMMON_H__
 #define __COMMON_H__
 
diff --git a/drivers/staging/media/atomisp/i2c/imx/drv201.c b/drivers/staging/media/atomisp/i2c/imx/drv201.c
index 6d9d4c968722..221e4875ac49 100644
--- a/drivers/staging/media/atomisp/i2c/imx/drv201.c
+++ b/drivers/staging/media/atomisp/i2c/imx/drv201.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/device.h>
 #include <linux/delay.h>
diff --git a/drivers/staging/media/atomisp/i2c/imx/drv201.h b/drivers/staging/media/atomisp/i2c/imx/drv201.h
index 8fc0ad116630..2ef8aafdf675 100644
--- a/drivers/staging/media/atomisp/i2c/imx/drv201.h
+++ b/drivers/staging/media/atomisp/i2c/imx/drv201.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRV201_H__
 #define __DRV201_H__
 
diff --git a/drivers/staging/media/atomisp/i2c/imx/dw9714.c b/drivers/staging/media/atomisp/i2c/imx/dw9714.c
index 6397a7ee0af6..f96855454313 100644
--- a/drivers/staging/media/atomisp/i2c/imx/dw9714.c
+++ b/drivers/staging/media/atomisp/i2c/imx/dw9714.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/device.h>
 #include <linux/delay.h>
diff --git a/drivers/staging/media/atomisp/i2c/imx/dw9714.h b/drivers/staging/media/atomisp/i2c/imx/dw9714.h
index 5a98a9c97182..aee560026b56 100644
--- a/drivers/staging/media/atomisp/i2c/imx/dw9714.h
+++ b/drivers/staging/media/atomisp/i2c/imx/dw9714.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DW9714_H__
 #define __DW9714_H__
 
diff --git a/drivers/staging/media/atomisp/i2c/imx/imx134.h b/drivers/staging/media/atomisp/i2c/imx/imx134.h
index cf35197ed77f..9026e8ba5679 100644
--- a/drivers/staging/media/atomisp/i2c/imx/imx134.h
+++ b/drivers/staging/media/atomisp/i2c/imx/imx134.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IMX134_H__
 #define __IMX134_H__
 
diff --git a/drivers/staging/media/atomisp/i2c/imx/imx175.h b/drivers/staging/media/atomisp/i2c/imx/imx175.h
index 5f409ccedc85..5e082088cb37 100644
--- a/drivers/staging/media/atomisp/i2c/imx/imx175.h
+++ b/drivers/staging/media/atomisp/i2c/imx/imx175.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IMX175_H__
 #define __IMX175_H__
 #include "common.h"
diff --git a/drivers/staging/media/atomisp/i2c/imx/imx219.h b/drivers/staging/media/atomisp/i2c/imx/imx219.h
index 52df582c56d8..bbd515bf7279 100644
--- a/drivers/staging/media/atomisp/i2c/imx/imx219.h
+++ b/drivers/staging/media/atomisp/i2c/imx/imx219.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IMX219_H__
 #define __IMX219_H__
 #include "common.h"
diff --git a/drivers/staging/media/atomisp/i2c/imx/imx227.h b/drivers/staging/media/atomisp/i2c/imx/imx227.h
index 10e5b86f6687..795fe017d01b 100644
--- a/drivers/staging/media/atomisp/i2c/imx/imx227.h
+++ b/drivers/staging/media/atomisp/i2c/imx/imx227.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IMX227_H__
 #define __IMX227_H__
 
diff --git a/drivers/staging/media/atomisp/i2c/ov5693/Makefile b/drivers/staging/media/atomisp/i2c/ov5693/Makefile
index 4e3833aaec05..facb70e6a93e 100644
--- a/drivers/staging/media/atomisp/i2c/ov5693/Makefile
+++ b/drivers/staging/media/atomisp/i2c/ov5693/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIDEO_OV5693) += ov5693.o
 
 # HACK! While this driver is in bad shape, don't enable several warnings
diff --git a/drivers/staging/media/atomisp/include/asm/intel_mid_pcihelpers.h b/drivers/staging/media/atomisp/include/asm/intel_mid_pcihelpers.h
index c5e22bba455a..dc7104470f5c 100644
--- a/drivers/staging/media/atomisp/include/asm/intel_mid_pcihelpers.h
+++ b/drivers/staging/media/atomisp/include/asm/intel_mid_pcihelpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Access to message bus through three registers
  * in CUNIT(0:0:0) PCI configuration space.
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/Makefile b/drivers/staging/media/atomisp/pci/atomisp2/Makefile
index 2bd98f0667ec..ac3805345f20 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/Makefile
+++ b/drivers/staging/media/atomisp/pci/atomisp2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 atomisp-objs += \
 	atomisp_drvfs.o \
 	atomisp_file.o \
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
index 05897b747349..5027fd20d966 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/atomisp_compat_css20.c
@@ -155,7 +155,7 @@ static void atomisp_css2_hw_store(hrt_address addr,
 				  const void *from, uint32_t n)
 {
 	unsigned long flags;
-	unsigned i;
+	unsigned int i;
 	unsigned int _to = (unsigned int)addr;
 	const char *_from = (const char *)from;
 
@@ -168,7 +168,7 @@ static void atomisp_css2_hw_store(hrt_address addr,
 static void atomisp_css2_hw_load(hrt_address addr, void *to, uint32_t n)
 {
 	unsigned long flags;
-	unsigned i;
+	unsigned int i;
 	char *_to = (char *)to;
 	unsigned int _from = (unsigned int)addr;
 
@@ -232,9 +232,11 @@ static void __dump_pipe_config(struct atomisp_sub_device *asd,
 			       unsigned int pipe_id)
 {
 	struct atomisp_device *isp = asd->isp;
+
 	if (stream_env->pipes[pipe_id]) {
 		struct ia_css_pipe_config *p_config;
 		struct ia_css_pipe_extra_config *pe_config;
+
 		p_config = &stream_env->pipe_configs[pipe_id];
 		pe_config = &stream_env->pipe_extra_configs[pipe_id];
 		dev_dbg(isp->dev, "dumping pipe[%d] config:\n", pipe_id);
@@ -507,6 +509,7 @@ static int __destroy_stream(struct atomisp_sub_device *asd,
 static int __destroy_streams(struct atomisp_sub_device *asd, bool force)
 {
 	int ret, i;
+
 	for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++) {
 		ret = __destroy_stream(asd, &asd->stream_env[i], force);
 		if (ret)
@@ -573,6 +576,7 @@ static int __destroy_stream_pipes(struct atomisp_sub_device *asd,
 	struct atomisp_device *isp = asd->isp;
 	int ret = 0;
 	int i;
+
 	for (i = 0; i < IA_CSS_PIPE_ID_NUM; i++) {
 		if (!stream_env->pipes[i] ||
 		    !(force || stream_env->update_pipe[i]))
@@ -892,12 +896,12 @@ static inline int __set_css_print_env(struct atomisp_device *isp, int opt)
 {
 	int ret = 0;
 
-	if (0 == opt)
+	if (opt == 0)
 		isp->css_env.isp_css_env.print_env.debug_print = NULL;
-	else if (1 == opt)
+	else if (opt == 1)
 		isp->css_env.isp_css_env.print_env.debug_print =
 			atomisp_css2_dbg_ftrace_print;
-	else if (2 == opt)
+	else if (opt == 2)
 		isp->css_env.isp_css_env.print_env.debug_print =
 			atomisp_css2_dbg_print;
 	else
@@ -1051,6 +1055,7 @@ int atomisp_css_irq_enable(struct atomisp_device *isp,
 void atomisp_css_init_struct(struct atomisp_sub_device *asd)
 {
 	int i, j;
+
 	for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++) {
 		asd->stream_env[i].stream = NULL;
 		for (j = 0; j < IA_CSS_PIPE_MODE_NUM; j++) {
@@ -1189,6 +1194,7 @@ int atomisp_css_start(struct atomisp_sub_device *asd,
 	struct atomisp_device *isp = asd->isp;
 	bool sp_is_started = false;
 	int ret = 0, i = 0;
+
 	if (in_reset) {
 		if (__destroy_streams(asd, true))
 			dev_warn(isp->dev, "destroy stream failed.\n");
@@ -1976,6 +1982,7 @@ void atomisp_css_enable_raw_binning(struct atomisp_sub_device *asd,
 void atomisp_css_enable_dz(struct atomisp_sub_device *asd, bool enable)
 {
 	int i;
+
 	for (i = 0; i < IA_CSS_PIPE_ID_NUM; i++)
 		asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL]
 			.pipe_configs[i].enable_dz = enable;
@@ -2002,6 +2009,7 @@ void atomisp_css_input_set_mode(struct atomisp_sub_device *asd,
 	int i;
 	struct atomisp_device *isp = asd->isp;
 	unsigned int size_mem_words;
+
 	for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++)
 		asd->stream_env[i].stream_config.mode = mode;
 
@@ -2275,6 +2283,7 @@ int atomisp_css_stop(struct atomisp_sub_device *asd,
 	if (!in_reset) {
 		struct atomisp_stream_env *stream_env;
 		int i, j;
+
 		for (i = 0; i < ATOMISP_INPUT_STREAM_NUM; i++) {
 			stream_env = &asd->stream_env[i];
 			for (j = 0; j < IA_CSS_PIPE_ID_NUM; j++) {
@@ -2801,6 +2810,7 @@ static void __configure_video_vf_output(struct atomisp_sub_device *asd,
 	struct atomisp_stream_env *stream_env =
 		&asd->stream_env[ATOMISP_INPUT_STREAM_GENERAL];
 	struct ia_css_frame_info *css_output_info;
+
 	stream_env->pipe_configs[pipe_id].mode =
 					__pipe_id_to_pipe_mode(asd, pipe_id);
 	stream_env->update_pipe[pipe_id] = true;
@@ -4464,7 +4474,8 @@ int atomisp_css_load_acc_binary(struct atomisp_sub_device *asd,
 static struct atomisp_sub_device *__get_atomisp_subdev(
 					struct ia_css_pipe *css_pipe,
 					struct atomisp_device *isp,
-					enum atomisp_input_stream_id *stream_id) {
+					enum atomisp_input_stream_id *stream_id)
+{
 	int i, j, k;
 	struct atomisp_sub_device *asd;
 	struct atomisp_stream_env *stream_env;
@@ -4659,7 +4670,7 @@ int atomisp_css_dump_sp_raw_copy_linecount(bool reduced)
 int atomisp_css_dump_blob_infor(void)
 {
 	struct ia_css_blob_descr *bd = sh_css_blob_info;
-	unsigned i, nm = sh_css_num_binaries;
+	unsigned int i, nm = sh_css_num_binaries;
 
 	if (nm == 0)
 		return -EPERM;
@@ -4695,7 +4706,7 @@ int atomisp_set_css_dbgfunc(struct atomisp_device *isp, int opt)
 	int ret;
 
 	ret = __set_css_print_env(isp, opt);
-	if (0 == ret)
+	if (ret == 0)
 		dbg_func = opt;
 
 	return ret;
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c b/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
index 63582161050a..53a7891111f9 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c
@@ -145,8 +145,8 @@ sh_css_load_blob_info(const char *fw, const struct ia_css_fw_info *bi, struct ia
 		size_t configstruct_size = sizeof(struct ia_css_config_memory_offsets);
 		size_t statestruct_size = sizeof(struct ia_css_state_memory_offsets);
 
-		char *parambuf = (char *)kmalloc(paramstruct_size + configstruct_size + statestruct_size,
-							GFP_KERNEL);
+		char *parambuf = kmalloc(paramstruct_size + configstruct_size + statestruct_size,
+					 GFP_KERNEL);
 		if (parambuf == NULL)
 			return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;
 
diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
index 11162f595fc7..5232327f5d9c 100644
--- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
+++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c
@@ -725,7 +725,7 @@ static int alloc_private_pages(struct hmm_buffer_object *bo,
 
 	pgnr = bo->pgnr;
 
-	bo->page_obj = kmalloc(sizeof(struct hmm_page_object) * pgnr,
+	bo->page_obj = kmalloc_array(pgnr, sizeof(struct hmm_page_object),
 				GFP_KERNEL);
 	if (unlikely(!bo->page_obj)) {
 		dev_err(atomisp_dev, "out of memory for bo->page_obj\n");
@@ -990,13 +990,13 @@ static int alloc_user_pages(struct hmm_buffer_object *bo,
 	struct vm_area_struct *vma;
 	struct page **pages;
 
-	pages = kmalloc(sizeof(struct page *) * bo->pgnr, GFP_KERNEL);
+	pages = kmalloc_array(bo->pgnr, sizeof(struct page *), GFP_KERNEL);
 	if (unlikely(!pages)) {
 		dev_err(atomisp_dev, "out of memory for pages...\n");
 		return -ENOMEM;
 	}
 
-	bo->page_obj = kmalloc(sizeof(struct hmm_page_object) * bo->pgnr,
+	bo->page_obj = kmalloc_array(bo->pgnr, sizeof(struct hmm_page_object),
 		GFP_KERNEL);
 	if (unlikely(!bo->page_obj)) {
 		dev_err(atomisp_dev, "out of memory for bo->page_obj...\n");
@@ -1363,7 +1363,7 @@ void *hmm_bo_vmap(struct hmm_buffer_object *bo, bool cached)
 		bo->status &= ~(HMM_BO_VMAPED | HMM_BO_VMAPED_CACHED);
 	}
 
-	pages = kmalloc(sizeof(*pages) * bo->pgnr, GFP_KERNEL);
+	pages = kmalloc_array(bo->pgnr, sizeof(*pages), GFP_KERNEL);
 	if (unlikely(!pages)) {
 		mutex_unlock(&bo->mutex);
 		dev_err(atomisp_dev, "out of memory for pages...\n");
diff --git a/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c b/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c
index cd452cc20fea..4631b1d39bb4 100644
--- a/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c
+++ b/drivers/staging/media/atomisp/platform/intel-mid/intel_mid_pcihelpers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/pci.h>
 #include <linux/pm_qos.h>
diff --git a/drivers/staging/media/bcm2048/radio-bcm2048.c b/drivers/staging/media/bcm2048/radio-bcm2048.c
index 58adaea44eb5..5d3b0e5a1283 100644
--- a/drivers/staging/media/bcm2048/radio-bcm2048.c
+++ b/drivers/staging/media/bcm2048/radio-bcm2048.c
@@ -1964,7 +1964,7 @@ static ssize_t bcm2048_##prop##_write(struct device *dev,		\
 	return err < 0 ? err : count;					\
 }
 
-#define property_read(prop, size, mask)					\
+#define property_read(prop, mask)					\
 static ssize_t bcm2048_##prop##_read(struct device *dev,		\
 					struct device_attribute *attr,	\
 					char *buf)			\
@@ -1999,9 +1999,9 @@ static ssize_t bcm2048_##prop##_read(struct device *dev,		\
 	return sprintf(buf, mask "\n", value);				\
 }
 
-#define DEFINE_SYSFS_PROPERTY(prop, signal, size, mask, check)		\
-property_write(prop, signal size, mask, check)				\
-property_read(prop, size, mask)
+#define DEFINE_SYSFS_PROPERTY(prop, prop_type, mask, check)		\
+property_write(prop, prop_type, mask, check)				\
+property_read(prop, mask)						\
 
 #define property_str_read(prop, size)					\
 static ssize_t bcm2048_##prop##_read(struct device *dev,		\
@@ -2027,39 +2027,39 @@ static ssize_t bcm2048_##prop##_read(struct device *dev,		\
 	return count;							\
 }
 
-DEFINE_SYSFS_PROPERTY(power_state, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(mute, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(audio_route, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(dac_output, unsigned, int, "%u", 0)
-
-DEFINE_SYSFS_PROPERTY(fm_hi_lo_injection, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_frequency, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_af_frequency, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_deemphasis, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_rds_mask, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_best_tune_mode, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_search_rssi_threshold, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_search_mode_direction, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(fm_search_tune_mode, unsigned, int, "%u", value > 3)
-
-DEFINE_SYSFS_PROPERTY(rds, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(rds_b_block_mask, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(rds_b_block_match, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(rds_pi_mask, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(rds_pi_match, unsigned, int, "%u", 0)
-DEFINE_SYSFS_PROPERTY(rds_wline, unsigned, int, "%u", 0)
-property_read(rds_pi, unsigned int, "%x")
+DEFINE_SYSFS_PROPERTY(power_state, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(mute, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(audio_route, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(dac_output, unsigned int, "%u", 0)
+
+DEFINE_SYSFS_PROPERTY(fm_hi_lo_injection, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_frequency, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_af_frequency, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_deemphasis, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_rds_mask, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_best_tune_mode, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_search_rssi_threshold, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_search_mode_direction, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(fm_search_tune_mode, unsigned int, "%u", value > 3)
+
+DEFINE_SYSFS_PROPERTY(rds, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(rds_b_block_mask, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(rds_b_block_match, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(rds_pi_mask, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(rds_pi_match, unsigned int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(rds_wline, unsigned int, "%u", 0)
+property_read(rds_pi, "%x")
 property_str_read(rds_rt, (BCM2048_MAX_RDS_RT + 1))
 property_str_read(rds_ps, (BCM2048_MAX_RDS_PS + 1))
 
-property_read(fm_rds_flags, unsigned int, "%u")
+property_read(fm_rds_flags, "%u")
 property_str_read(rds_data, BCM2048_MAX_RDS_RADIO_TEXT * 5)
 
-property_read(region_bottom_frequency, unsigned int, "%u")
-property_read(region_top_frequency, unsigned int, "%u")
+property_read(region_bottom_frequency, "%u")
+property_read(region_top_frequency, "%u")
 property_signed_read(fm_carrier_error, int, "%d")
 property_signed_read(fm_rssi, int, "%d")
-DEFINE_SYSFS_PROPERTY(region, unsigned, int, "%u", 0)
+DEFINE_SYSFS_PROPERTY(region, unsigned int, "%u", 0)
 
 static struct device_attribute attrs[] = {
 	__ATTR(power_state, 0644, bcm2048_power_state_read,
diff --git a/drivers/staging/media/imx/Makefile b/drivers/staging/media/imx/Makefile
index 3569625b6305..698a4210316e 100644
--- a/drivers/staging/media/imx/Makefile
+++ b/drivers/staging/media/imx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 imx-media-objs := imx-media-dev.o imx-media-internal-sd.o imx-media-of.o
 imx-media-common-objs := imx-media-utils.o imx-media-fim.o
 imx-media-ic-objs := imx-ic-common.o imx-ic-prp.o imx-ic-prpencvf.o
diff --git a/drivers/staging/media/imx/imx-media-dev.c b/drivers/staging/media/imx/imx-media-dev.c
index d96f4512224f..b55e5ebba8b4 100644
--- a/drivers/staging/media/imx/imx-media-dev.c
+++ b/drivers/staging/media/imx/imx-media-dev.c
@@ -400,10 +400,10 @@ static int imx_media_create_pad_vdev_lists(struct imx_media_dev *imxmd)
 					struct media_link, list);
 		ret = imx_media_add_vdev_to_pad(imxmd, vdev, link->source);
 		if (ret)
-			break;
+			return ret;
 	}
 
-	return ret;
+	return 0;
 }
 
 /* async subdev complete notifier */
diff --git a/drivers/staging/most/Makefile b/drivers/staging/most/Makefile
index 9ee981c7786b..f5bbb9deaab5 100644
--- a/drivers/staging/most/Makefile
+++ b/drivers/staging/most/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MOSTCORE)	+= mostcore/
 obj-$(CONFIG_AIM_CDEV)	+= aim-cdev/
 obj-$(CONFIG_AIM_NETWORK)	+= aim-network/
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 13eaf16ecd16..87595c594b12 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -496,8 +496,12 @@ static int spinand_program_page(struct spi_device *spi_nand,
 	if (!wbuf)
 		return -ENOMEM;
 
-	enable_read_hw_ecc = 0;
-	spinand_read_page(spi_nand, page_id, 0, CACHE_BUF, wbuf);
+	enable_read_hw_ecc = 1;
+	retval = spinand_read_page(spi_nand, page_id, 0, CACHE_BUF, wbuf);
+	if (retval < 0) {
+		dev_err(&spi_nand->dev, "ecc error on read page!!!\n");
+		return retval;
+	}
 
 	for (i = offset, j = 0; i < len; i++, j++)
 		wbuf[i] &= buf[j];
diff --git a/drivers/staging/netlogic/xlr_net.c b/drivers/staging/netlogic/xlr_net.c
index e05ae4645d91..30532d8c310b 100644
--- a/drivers/staging/netlogic/xlr_net.c
+++ b/drivers/staging/netlogic/xlr_net.c
@@ -364,39 +364,39 @@ static void xlr_stats(struct net_device *ndev, struct rtnl_link_stats64 *stats)
 	stats->tx_bytes = xlr_nae_rdreg(priv->base_addr, TX_BYTE_COUNTER);
 	stats->tx_errors = xlr_nae_rdreg(priv->base_addr, TX_FCS_ERROR_COUNTER);
 	stats->rx_dropped = xlr_nae_rdreg(priv->base_addr,
-			RX_DROP_PACKET_COUNTER);
+					  RX_DROP_PACKET_COUNTER);
 	stats->tx_dropped = xlr_nae_rdreg(priv->base_addr,
-			TX_DROP_FRAME_COUNTER);
+					  TX_DROP_FRAME_COUNTER);
 
 	stats->multicast = xlr_nae_rdreg(priv->base_addr,
-			RX_MULTICAST_PACKET_COUNTER);
+					 RX_MULTICAST_PACKET_COUNTER);
 	stats->collisions = xlr_nae_rdreg(priv->base_addr,
-			TX_TOTAL_COLLISION_COUNTER);
+					  TX_TOTAL_COLLISION_COUNTER);
 
 	stats->rx_length_errors = xlr_nae_rdreg(priv->base_addr,
-			RX_FRAME_LENGTH_ERROR_COUNTER);
+						RX_FRAME_LENGTH_ERROR_COUNTER);
 	stats->rx_over_errors = xlr_nae_rdreg(priv->base_addr,
-			RX_DROP_PACKET_COUNTER);
+					      RX_DROP_PACKET_COUNTER);
 	stats->rx_crc_errors = xlr_nae_rdreg(priv->base_addr,
-			RX_FCS_ERROR_COUNTER);
+					     RX_FCS_ERROR_COUNTER);
 	stats->rx_frame_errors = xlr_nae_rdreg(priv->base_addr,
-			RX_ALIGNMENT_ERROR_COUNTER);
+					       RX_ALIGNMENT_ERROR_COUNTER);
 
 	stats->rx_fifo_errors = xlr_nae_rdreg(priv->base_addr,
-			RX_DROP_PACKET_COUNTER);
+					      RX_DROP_PACKET_COUNTER);
 	stats->rx_missed_errors = xlr_nae_rdreg(priv->base_addr,
-			RX_CARRIER_SENSE_ERROR_COUNTER);
+						RX_CARRIER_SENSE_ERROR_COUNTER);
 
 	stats->rx_errors = (stats->rx_over_errors + stats->rx_crc_errors +
-			stats->rx_frame_errors + stats->rx_fifo_errors +
-			stats->rx_missed_errors);
+			    stats->rx_frame_errors + stats->rx_fifo_errors +
+			    stats->rx_missed_errors);
 
 	stats->tx_aborted_errors = xlr_nae_rdreg(priv->base_addr,
 			TX_EXCESSIVE_COLLISION_PACKET_COUNTER);
 	stats->tx_carrier_errors = xlr_nae_rdreg(priv->base_addr,
-			TX_DROP_FRAME_COUNTER);
+						 TX_DROP_FRAME_COUNTER);
 	stats->tx_fifo_errors = xlr_nae_rdreg(priv->base_addr,
-			TX_DROP_FRAME_COUNTER);
+					      TX_DROP_FRAME_COUNTER);
 }
 
 static const struct net_device_ops xlr_netdev_ops = {
@@ -448,41 +448,35 @@ static void *xlr_config_spill(struct xlr_net_priv *priv, int reg_start_0,
 static void xlr_config_fifo_spill_area(struct xlr_net_priv *priv)
 {
 	priv->frin_spill = xlr_config_spill(priv,
-			R_REG_FRIN_SPILL_MEM_START_0,
-			R_REG_FRIN_SPILL_MEM_START_1,
-			R_REG_FRIN_SPILL_MEM_SIZE,
-			MAX_FRIN_SPILL *
-			sizeof(u64));
+					    R_REG_FRIN_SPILL_MEM_START_0,
+					    R_REG_FRIN_SPILL_MEM_START_1,
+					    R_REG_FRIN_SPILL_MEM_SIZE,
+					    MAX_FRIN_SPILL * sizeof(u64));
 	priv->frout_spill = xlr_config_spill(priv,
-			R_FROUT_SPILL_MEM_START_0,
-			R_FROUT_SPILL_MEM_START_1,
-			R_FROUT_SPILL_MEM_SIZE,
-			MAX_FROUT_SPILL *
-			sizeof(u64));
+					     R_FROUT_SPILL_MEM_START_0,
+					     R_FROUT_SPILL_MEM_START_1,
+					     R_FROUT_SPILL_MEM_SIZE,
+					     MAX_FROUT_SPILL * sizeof(u64));
 	priv->class_0_spill = xlr_config_spill(priv,
-			R_CLASS0_SPILL_MEM_START_0,
-			R_CLASS0_SPILL_MEM_START_1,
-			R_CLASS0_SPILL_MEM_SIZE,
-			MAX_CLASS_0_SPILL *
-			sizeof(u64));
+					       R_CLASS0_SPILL_MEM_START_0,
+					       R_CLASS0_SPILL_MEM_START_1,
+					       R_CLASS0_SPILL_MEM_SIZE,
+					       MAX_CLASS_0_SPILL * sizeof(u64));
 	priv->class_1_spill = xlr_config_spill(priv,
-			R_CLASS1_SPILL_MEM_START_0,
-			R_CLASS1_SPILL_MEM_START_1,
-			R_CLASS1_SPILL_MEM_SIZE,
-			MAX_CLASS_1_SPILL *
-			sizeof(u64));
+					       R_CLASS1_SPILL_MEM_START_0,
+					       R_CLASS1_SPILL_MEM_START_1,
+					       R_CLASS1_SPILL_MEM_SIZE,
+					       MAX_CLASS_1_SPILL * sizeof(u64));
 	priv->class_2_spill = xlr_config_spill(priv,
-			R_CLASS2_SPILL_MEM_START_0,
-			R_CLASS2_SPILL_MEM_START_1,
-			R_CLASS2_SPILL_MEM_SIZE,
-			MAX_CLASS_2_SPILL *
-			sizeof(u64));
+					       R_CLASS2_SPILL_MEM_START_0,
+					       R_CLASS2_SPILL_MEM_START_1,
+					       R_CLASS2_SPILL_MEM_SIZE,
+					       MAX_CLASS_2_SPILL * sizeof(u64));
 	priv->class_3_spill = xlr_config_spill(priv,
-			R_CLASS3_SPILL_MEM_START_0,
-			R_CLASS3_SPILL_MEM_START_1,
-			R_CLASS3_SPILL_MEM_SIZE,
-			MAX_CLASS_3_SPILL *
-			sizeof(u64));
+					       R_CLASS3_SPILL_MEM_START_0,
+					       R_CLASS3_SPILL_MEM_START_1,
+					       R_CLASS3_SPILL_MEM_SIZE,
+					       MAX_CLASS_3_SPILL * sizeof(u64));
 }
 
 /*
diff --git a/drivers/staging/nvec/Makefile b/drivers/staging/nvec/Makefile
index 0db0e1f43337..f0cff8f9fdf6 100644
--- a/drivers/staging/nvec/Makefile
+++ b/drivers/staging/nvec/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SERIO_NVEC_PS2)	+= nvec_ps2.o
 obj-$(CONFIG_MFD_NVEC)		+= nvec.o
 obj-$(CONFIG_NVEC_POWER) 	+= nvec_power.o
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.h b/drivers/staging/olpc_dcon/olpc_dcon.h
index 215e7ec4dea2..8fbde5d3b4a6 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.h
+++ b/drivers/staging/olpc_dcon/olpc_dcon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef OLPC_DCON_H_
 #define OLPC_DCON_H_
 
diff --git a/drivers/staging/pi433/Documentation/pi433.txt b/drivers/staging/pi433/Documentation/pi433.txt
index 38b83b86c334..245fef33d688 100644
--- a/drivers/staging/pi433/Documentation/pi433.txt
+++ b/drivers/staging/pi433/Documentation/pi433.txt
@@ -20,7 +20,7 @@ Discription of driver operation
 a) transmission
 
 Each transmission can take place with a different configuration of the rf
-module. Therfore each application can set its own set of parameters. The driver
+module. Therefore each application can set its own set of parameters. The driver
 takes care, that each transmission takes place with the parameterset of the
 application, that requests the transmission. To allow the transmission to take
 place in the background, a tx thread is introduced.
@@ -33,7 +33,7 @@ there is no receive request or the receiver is still waiting for something in
 the air, the rf module is set to standby, the parameters for transmission gets
 set, the hardware fifo of the rf chip gets preloaded and the transmission gets
 started. Upon hardware fifo threshold interrupt it gets reloaded, thus enabling
-much longer telegrams then hardware fifo size. If the telegram is send and there
+much longer telegrams than the hardware fifo size. If the telegram is sent and there
 is more data available in the kfifo, the procedure is repeated. If not the
 transmission cycle ends.
 
@@ -41,7 +41,7 @@ b) reception
 
 Since there is only one application allowed to receive data at a time, for
 reception there is only one configuration set.
-As soon as an application sets an request for receiving a telegram, the reception
+As soon as an application sets a request for receiving a telegram, the reception
 configuration set is written to the rf module and it gets set into receiving mode.
 Now the driver is waiting, that a predefined RSSI level (signal strength at the
 receiver) is reached. Until this hasn't happened, the reception can be
@@ -123,7 +123,7 @@ packet format:
 		optionOff	- no preamble will be generated
 	enable_sync
 		optionOn	- a sync word will be automatically added to
-				  the telegram after preamble
+				  the telegram after the preamble
 		optionOff	- no sync word will be added
 		Attention: While possible to generate sync without preamble, the
 		receiver won't be able to detect the sync without preamble.
@@ -136,7 +136,7 @@ packet format:
 		Attention: should be used in combination with sync, only
 	enable_address_byte
 		optionOn	- the address byte will be automatically added to the
-				  telgram. It's part of the payload
+				  telegram. It's part of the payload
 		optionOff	- the address byte will not be added to the telegram.
 		The address byte can be used for address filtering, so the receiver
 		will only receive telegrams with a given address byte.
@@ -161,7 +161,7 @@ packet format:
 		one byte, used as address byte on address byte option.
 
 
-The rx configuration is transfered via struct pi433_rx_cfg, the parameterset for receiving. It is devided into two sections: rf parameters and packet format.
+The rx configuration is transferred via struct pi433_rx_cfg, the parameterset for receiving. It is divided into two sections: rf parameters and packet format.
 
 rf params:
 	frequency
@@ -178,7 +178,7 @@ rf params:
 		OOK - on off key
 	rssi_threshold
 		threshold value for the signal strength on the receiver input.
-		If this value is exeeded, a reception cycle starts
+		If this value is exceeded, a reception cycle starts
 		Allowed values: 0...255
 	thresholdDecrement
 		in order to adapt to different levels of singnal strength, over
@@ -198,7 +198,7 @@ rf params:
 		twohundretOhm	- for antennas with an impedance of 200Ohm
 	lnaGain
 		sets the gain of the low noise amp
-		automatic	- lna gain is determed by an agc
+		automatic	- lna gain is determined by an agc
 		max		- lna gain is set to maximum
 		maxMinus6	- lna gain is set to  6db below max
 		maxMinus12	- lna gain is set to 12db below max
@@ -232,7 +232,7 @@ rf params:
 			     amount of bytes that were requested by the read request.
 		Attention: should be used in combination with sync, only
 	enable_address_filtering;
-		filteringOff		- no adress filtering will take place
+		filteringOff		- no address filtering will take place
 		nodeAddress		- all telegrams, not matching the node
 					  address will be internally discarded
 		nodeOrBroadcastAddress	- all telegrams, neither matching the
@@ -245,7 +245,7 @@ rf params:
 				  calculated crc doesn't match to two bytes,
 				  that follow the payload, the telegram will be
 				  internally discarded.
-		Attention: This option is only operational, if sync on and fixed length
+		Attention: This option is only operational if sync on and fixed length
 		or length byte is used
 	sync_length
 		Gives the length of the payload.
@@ -255,9 +255,9 @@ rf params:
 		Overrides the telegram length either given by the first byte of
 		payload or by the read request.
 	bytes_to_drop
-		gives the number of bytes, that will be dropped before transfering
+		gives the number of bytes, that will be dropped before transferring
 		data to the read buffer
-		This option is only usefull, if all packet helper are switched
+		This option is only useful if all packet helper are switched
 		off and the rf chip is used in raw receiving mode. This may be
 		needed, if a telegram of a third party device should be received,
 		using a protocol not compatible with the packet engine of the rf69 chip.
diff --git a/drivers/staging/pi433/pi433_if.c b/drivers/staging/pi433/pi433_if.c
index 93c01680f016..d946838450d4 100644
--- a/drivers/staging/pi433/pi433_if.c
+++ b/drivers/staging/pi433/pi433_if.c
@@ -136,17 +136,17 @@ static irqreturn_t DIO0_irq_handler(int irq, void *dev_id)
 	if      (device->irq_state[DIO0] == DIO_PacketSent)
 	{
 		device->free_in_fifo = FIFO_SIZE;
-		printk("DIO0 irq: Packet sent\n"); // TODO: printk() should include KERN_ facility level
+		dev_dbg(device->dev, "DIO0 irq: Packet sent\n");
 		wake_up_interruptible(&device->fifo_wait_queue);
 	}
 	else if (device->irq_state[DIO0] == DIO_Rssi_DIO0)
 	{
-		printk("DIO0 irq: RSSI level over threshold\n");
+		dev_dbg(device->dev, "DIO0 irq: RSSI level over threshold\n");
 		wake_up_interruptible(&device->rx_wait_queue);
 	}
 	else if (device->irq_state[DIO0] == DIO_PayloadReady)
 	{
-		printk("DIO0 irq: PayloadReady\n");
+		dev_dbg(device->dev, "DIO0 irq: PayloadReady\n");
 		device->free_in_fifo = 0;
 		wake_up_interruptible(&device->fifo_wait_queue);
 	}
@@ -167,7 +167,8 @@ static irqreturn_t DIO1_irq_handler(int irq, void *dev_id)
 		if (device->rx_active)	device->free_in_fifo = FIFO_THRESHOLD - 1;
 		else			device->free_in_fifo = FIFO_SIZE - FIFO_THRESHOLD - 1;
 	}
-	printk("DIO1 irq: %d bytes free in fifo\n", device->free_in_fifo); // TODO: printk() should include KERN_ facility level
+	dev_dbg(device->dev,
+		"DIO1 irq: %d bytes free in fifo\n", device->free_in_fifo);
 	wake_up_interruptible(&device->fifo_wait_queue);
 
 	return IRQ_HANDLED;
@@ -284,8 +285,7 @@ rf69_set_tx_cfg(struct pi433_device *dev, struct pi433_tx_cfg *tx_cfg)
 	SET_CHECKED(rf69_set_crc_enable	  (dev->spi, tx_cfg->enable_crc));
 
 	/* configure sync, if enabled */
-	if (tx_cfg->enable_sync == optionOn)
-	{
+	if (tx_cfg->enable_sync == optionOn) {
 		SET_CHECKED(rf69_set_sync_size(dev->spi, tx_cfg->sync_length));
 		SET_CHECKED(rf69_set_sync_values(dev->spi, tx_cfg->sync_pattern));
 	}
@@ -407,8 +407,7 @@ pi433_receive(void *data)
 		if (retval) goto abort; /* wait was interrupted */
 
 		rf69_read_fifo(spi, (u8 *)&bytes_total, 1);
-		if (bytes_total > dev->rx_buffer_size)
-		{
+		if (bytes_total > dev->rx_buffer_size) {
 			retval = -1;
 			goto abort;
 		}
@@ -466,7 +465,7 @@ pi433_receive(void *data)
 	}
 
 
-	/* rx done, wait was interrupted or error occured */
+	/* rx done, wait was interrupted or error occurred */
 abort:
 	dev->interrupt_rx_allowed = true;
 	SET_CHECKED(rf69_set_mode(dev->spi, standby));
@@ -508,16 +507,14 @@ pi433_tx_thread(void *data)
 		mutex_lock(&device->tx_fifo_lock);
 
 		retval = kfifo_out(&device->tx_fifo, &tx_cfg, sizeof(tx_cfg));
-		if (retval != sizeof(tx_cfg))
-		{
+		if (retval != sizeof(tx_cfg)) {
 			dev_dbg(device->dev, "reading tx_cfg from fifo failed: got %d byte(s), expected %d", retval, (unsigned int)sizeof(tx_cfg) );
 			mutex_unlock(&device->tx_fifo_lock);
 			continue;
 		}
 
 		retval = kfifo_out(&device->tx_fifo, &size, sizeof(size_t));
-		if (retval != sizeof(size_t))
-		{
+		if (retval != sizeof(size_t)) {
 			dev_dbg(device->dev, "reading msg size from fifo failed: got %d, expected %d", retval, (unsigned int)sizeof(size_t) );
 			mutex_unlock(&device->tx_fifo_lock);
 			continue;
@@ -649,8 +646,7 @@ pi433_tx_thread(void *data)
 		SET_CHECKED(rf69_set_mode(spi, standby));
 
 		/* everything sent? */
-		if ( kfifo_is_empty(&device->tx_fifo) )
-		{
+		if (kfifo_is_empty(&device->tx_fifo)) {
 abort:
 			if (rx_interrupted)
 			{
@@ -704,8 +700,7 @@ pi433_read(struct file *filp, char __user *buf, size_t size, loff_t *f_pos)
 	mutex_unlock(&device->rx_lock);
 
 	/* if read was successful copy to user space*/
-	if (bytes_received > 0)
-	{
+	if (bytes_received > 0) {
 		retval = copy_to_user(buf, device->rx_buffer, bytes_received);
 		if (retval)
 			return -EFAULT;
@@ -805,8 +800,7 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	switch (cmd) {
 	case PI433_IOC_RD_TX_CFG:
 		tmp = _IOC_SIZE(cmd);
-		if ( (tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0) )
-		{
+		if ((tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0)) {
 			retval = -EINVAL;
 			break;
 		}
@@ -822,8 +816,7 @@ pi433_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		break;
 	case PI433_IOC_WR_TX_CFG:
 		tmp = _IOC_SIZE(cmd);
-		if ( (tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0) )
-		{
+		if ((tmp == 0) || ((tmp % sizeof(struct pi433_tx_cfg)) != 0)) {
 			retval = -EINVAL;
 			break;
 		}
@@ -916,8 +909,7 @@ static int pi433_open(struct inode *inode, struct file *filp)
 
 	if (!device->rx_buffer) {
 		device->rx_buffer = kmalloc(MAX_MSG_SIZE, GFP_KERNEL);
-		if (!device->rx_buffer)
-		{
+		if (!device->rx_buffer) {
 			dev_dbg(device->dev, "open/ENOMEM\n");
 			return -ENOMEM;
 		}
@@ -925,8 +917,7 @@ static int pi433_open(struct inode *inode, struct file *filp)
 
 	device->users++;
 	instance = kzalloc(sizeof(*instance), GFP_KERNEL);
-	if (!instance)
-	{
+	if (!instance) {
 		kfree(device->rx_buffer);
 		device->rx_buffer = NULL;
 		return -ENOMEM;
@@ -986,8 +977,7 @@ static int setup_GPIOs(struct pi433_device *device)
 		snprintf(name, sizeof(name), "DIO%d", i);
 		device->gpiod[i] = gpiod_get(&device->spi->dev, name, 0 /*GPIOD_IN*/);
 
-		if (device->gpiod[i] == ERR_PTR(-ENOENT))
-		{
+		if (device->gpiod[i] == ERR_PTR(-ENOENT)) {
 			dev_dbg(&device->spi->dev, "Could not find entry for %s. Ignoring.", name);
 			continue;
 		}
@@ -1016,8 +1006,7 @@ static int setup_GPIOs(struct pi433_device *device)
 
 		/* configure irq */
 		device->irq_num[i] = gpiod_to_irq(device->gpiod[i]);
-		if (device->irq_num[i] < 0)
-		{
+		if (device->irq_num[i] < 0) {
 			device->gpiod[i] = ERR_PTR(-EINVAL);//(struct gpio_desc *)device->irq_num[i];
 			return device->irq_num[i];
 		}
@@ -1030,7 +1019,7 @@ static int setup_GPIOs(struct pi433_device *device)
 		if (retval)
 			return retval;
 
-		dev_dbg(&device->spi->dev, "%s succesfully configured", name);
+		dev_dbg(&device->spi->dev, "%s successfully configured", name);
 	}
 
 	return 0;
@@ -1156,8 +1145,7 @@ static int pi433_probe(struct spi_device *spi)
 
 	/* setup GPIO (including irq_handler) for the different DIOs */
 	retval = setup_GPIOs(device);
-	if (retval)
-	{
+	if (retval) {
 		dev_dbg(&spi->dev, "setup of GPIOs failed");
 		goto GPIO_failed;
 	}
@@ -1175,16 +1163,14 @@ static int pi433_probe(struct spi_device *spi)
 	device->tx_task_struct = kthread_run(pi433_tx_thread,
 					     device,
 					     "pi433_tx_task");
-	if (IS_ERR(device->tx_task_struct))
-	{
+	if (IS_ERR(device->tx_task_struct)) {
 		dev_dbg(device->dev, "start of send thread failed");
 		goto send_thread_failed;
 	}
 
 	/* determ minor number */
 	retval = pi433_get_minor(device);
-	if (retval)
-	{
+	if (retval) {
 		dev_dbg(device->dev, "get of minor number failed");
 		goto minor_failed;
 	}
@@ -1213,8 +1199,7 @@ static int pi433_probe(struct spi_device *spi)
 	device->cdev->owner = THIS_MODULE;
 	cdev_init(device->cdev, &pi433_fops);
 	retval = cdev_add(device->cdev, device->devt, 1);
-	if (retval)
-	{
+	if (retval) {
 		dev_dbg(device->dev, "register of cdev failed");
 		goto cdev_failed;
 	}
@@ -1306,15 +1291,13 @@ static int __init pi433_init(void)
 		return status;
 
 	pi433_class = class_create(THIS_MODULE, "pi433");
-	if (IS_ERR(pi433_class))
-	{
+	if (IS_ERR(pi433_class)) {
 		unregister_chrdev(MAJOR(pi433_dev), pi433_spi_driver.driver.name);
 		return PTR_ERR(pi433_class);
 	}
 
 	status = spi_register_driver(&pi433_spi_driver);
-	if (status < 0)
-	{
+	if (status < 0) {
 		class_destroy(pi433_class);
 		unregister_chrdev(MAJOR(pi433_dev), pi433_spi_driver.driver.name);
 	}
diff --git a/drivers/staging/pi433/rf69.c b/drivers/staging/pi433/rf69.c
index c4b1b218ea38..e69a2153c999 100644
--- a/drivers/staging/pi433/rf69.c
+++ b/drivers/staging/pi433/rf69.c
@@ -34,7 +34,7 @@
 /*-------------------------------------------------------------------------*/
 
 #define READ_REG(x)	rf69_read_reg (spi, x)
-#define WRITE_REG(x,y)	rf69_write_reg(spi, x, y)
+#define WRITE_REG(x, y)	rf69_write_reg(spi, x, y)
 
 /*-------------------------------------------------------------------------*/
 
@@ -164,9 +164,12 @@ int rf69_set_bit_rate(struct spi_device *spi, u16 bitRate)
 
 	// transmit to RF 69
 	retval = WRITE_REG(REG_BITRATE_MSB, msb);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
+
 	retval = WRITE_REG(REG_BITRATE_LSB, lsb);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
 
 	return 0;
 }
@@ -196,7 +199,7 @@ int rf69_set_deviation(struct spi_device *spi, u32 deviation)
 
 	// calculate register settings
 	f_reg = deviation * factor;
-	do_div(f_reg  , f_step);
+	do_div(f_reg, f_step);
 
 	msb = (f_reg&0xff00)   >>  8;
 	lsb = (f_reg&0xff);
@@ -209,9 +212,12 @@ int rf69_set_deviation(struct spi_device *spi, u32 deviation)
 
 	// write to chip
 	retval = WRITE_REG(REG_FDEV_MSB, msb);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
+
 	retval = WRITE_REG(REG_FDEV_LSB, lsb);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
 
 	return 0;
 }
@@ -244,7 +250,7 @@ int rf69_set_frequency(struct spi_device *spi, u32 frequency)
 
 	// calculate reg settings
 	f_reg = frequency * factor;
-	do_div(f_reg  , f_step);
+	do_div(f_reg, f_step);
 
 	msb = (f_reg&0xff0000) >> 16;
 	mid = (f_reg&0xff00)   >>  8;
@@ -252,11 +258,16 @@ int rf69_set_frequency(struct spi_device *spi, u32 frequency)
 
 	// write to chip
 	retval = WRITE_REG(REG_FRF_MSB, msb);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
+
 	retval = WRITE_REG(REG_FRF_MID, mid);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
+
 	retval = WRITE_REG(REG_FRF_LSB, lsb);
-	if (retval)  return retval;
+	if (retval)
+		return retval;
 
 	return 0;
 }
@@ -267,9 +278,9 @@ int rf69_set_amplifier_0(struct spi_device *spi, enum optionOnOff optionOnOff)
 		dev_dbg(&spi->dev, "set: amp #0");
 	#endif
 
-	switch(optionOnOff) {
-	case optionOn:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) |  MASK_PALEVEL_PA0) );
-	case optionOff:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA0) );
+	switch (optionOnOff) {
+	case optionOn:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) |  MASK_PALEVEL_PA0));
+	case optionOff:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA0));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -282,9 +293,9 @@ int rf69_set_amplifier_1(struct spi_device *spi, enum optionOnOff optionOnOff)
 		dev_dbg(&spi->dev, "set: amp #1");
 	#endif
 
-	switch(optionOnOff) {
-	case optionOn:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) |  MASK_PALEVEL_PA1) );
-	case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA1) );
+	switch (optionOnOff) {
+	case optionOn:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) |  MASK_PALEVEL_PA1));
+	case optionOff: return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA1));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -297,9 +308,9 @@ int rf69_set_amplifier_2(struct spi_device *spi, enum optionOnOff optionOnOff)
 		dev_dbg(&spi->dev, "set: amp #2");
 	#endif
 
-	switch(optionOnOff) {
-	case optionOn:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) |  MASK_PALEVEL_PA2) );
-	case optionOff:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA2) );
+	switch (optionOnOff) {
+	case optionOn:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) |  MASK_PALEVEL_PA2));
+	case optionOff:	return WRITE_REG(REG_PALEVEL, (READ_REG(REG_PALEVEL) & ~MASK_PALEVEL_PA2));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -312,7 +323,7 @@ int rf69_set_output_power_level(struct spi_device *spi, u8 powerLevel)
 		dev_dbg(&spi->dev, "set: power level");
 	#endif
 
-	powerLevel +=18; // TODO Abhängigkeit von PA0,1,2 setting
+	powerLevel += 18; // TODO Abhängigkeit von PA0,1,2 setting
 
 	// check input value
 	if (powerLevel > 0x1f) {
@@ -330,7 +341,7 @@ int rf69_set_pa_ramp(struct spi_device *spi, enum paRamp paRamp)
 		dev_dbg(&spi->dev, "set: pa ramp");
 	#endif
 
-	switch(paRamp) {
+	switch (paRamp) {
 	case ramp3400:	return WRITE_REG(REG_PARAMP, PARAMP_3400);
 	case ramp2000:	return WRITE_REG(REG_PARAMP, PARAMP_2000);
 	case ramp1000:	return WRITE_REG(REG_PARAMP, PARAMP_1000);
@@ -359,9 +370,9 @@ int rf69_set_antenna_impedance(struct spi_device *spi, enum antennaImpedance ant
 		dev_dbg(&spi->dev, "set: antenna impedance");
 	#endif
 
-	switch(antennaImpedance) {
-	case fiftyOhm:	    return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) & ~MASK_LNA_ZIN) );
-	case twohundretOhm: return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) |  MASK_LNA_ZIN) );
+	switch (antennaImpedance) {
+	case fiftyOhm:	    return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) & ~MASK_LNA_ZIN));
+	case twohundretOhm: return WRITE_REG(REG_LNA, (READ_REG(REG_LNA) |  MASK_LNA_ZIN));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -374,14 +385,14 @@ int rf69_set_lna_gain(struct spi_device *spi, enum lnaGain lnaGain)
 		dev_dbg(&spi->dev, "set: lna gain");
 	#endif
 
-	switch(lnaGain) {
-	case automatic:	 return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_AUTO) );
-	case max:	 return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX) );
-	case maxMinus6:  return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_6) );
-	case maxMinus12: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_12) );
-	case maxMinus24: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_24) );
-	case maxMinus36: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_36) );
-	case maxMinus48: return WRITE_REG(REG_LNA, ( (READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_48) );
+	switch (lnaGain) {
+	case automatic:	 return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_AUTO));
+	case max:	 return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX));
+	case maxMinus6:  return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_6));
+	case maxMinus12: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_12));
+	case maxMinus24: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_24));
+	case maxMinus36: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_36));
+	case maxMinus48: return WRITE_REG(REG_LNA, ((READ_REG(REG_LNA) & ~MASK_LNA_GAIN) & LNA_GAIN_MAX_MINUS_48));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -410,17 +421,17 @@ enum lnaGain rf69_get_lna_gain(struct spi_device *spi)
 	}
 }
 
-int rf69_set_dc_cut_off_frequency_intern(struct spi_device *spi ,u8 reg, enum dccPercent dccPercent)
+int rf69_set_dc_cut_off_frequency_intern(struct spi_device *spi, u8 reg, enum dccPercent dccPercent)
 {
 	switch (dccPercent) {
-	case dcc16Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_16_PERCENT) );
-	case dcc8Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_8_PERCENT) );
-	case dcc4Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_4_PERCENT) );
-	case dcc2Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_2_PERCENT) );
-	case dcc1Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_1_PERCENT) );
-	case dcc0_5Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_5_PERCENT) );
-	case dcc0_25Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_25_PERCENT) );
-	case dcc0_125Percent:	return WRITE_REG(reg, ( (READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_125_PERCENT) );
+	case dcc16Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_16_PERCENT));
+	case dcc8Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_8_PERCENT));
+	case dcc4Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_4_PERCENT));
+	case dcc2Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_2_PERCENT));
+	case dcc1Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_1_PERCENT));
+	case dcc0_5Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_5_PERCENT));
+	case dcc0_25Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_25_PERCENT));
+	case dcc0_125Percent:	return WRITE_REG(reg, ((READ_REG(reg) & ~MASK_BW_DCC_FREQ) | BW_DCC_0_125_PERCENT));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -470,10 +481,16 @@ static int rf69_set_bandwidth_intern(struct spi_device *spi, u8 reg,
 	newValue = newValue & MASK_BW_DCC_FREQ;
 
 	// add new mantisse
-	switch(mantisse) {
-	case mantisse16: newValue = newValue | BW_MANT_16;	break;
-	case mantisse20: newValue = newValue | BW_MANT_20;	break;
-	case mantisse24: newValue = newValue | BW_MANT_24;	break;
+	switch (mantisse) {
+	case mantisse16:
+		newValue = newValue | BW_MANT_16;
+		break;
+	case mantisse20:
+		newValue = newValue | BW_MANT_20;
+		break;
+	case mantisse24:
+		newValue = newValue | BW_MANT_24;
+		break;
 	}
 
 	// add new exponent
@@ -508,9 +525,9 @@ int rf69_set_ook_threshold_type(struct spi_device *spi, enum thresholdType thres
 	#endif
 
 	switch (thresholdType) {
-	case fixed:	return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_FIXED) );
-	case peak:	return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_PEAK) );
-	case average:	return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_AVERAGE) );
+	case fixed:	return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_FIXED));
+	case peak:	return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_PEAK));
+	case average:	return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESTYPE) | OOKPEAK_THRESHTYPE_AVERAGE));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -524,14 +541,14 @@ int rf69_set_ook_threshold_step(struct spi_device *spi, enum thresholdStep thres
 	#endif
 
 	switch (thresholdStep) {
-	case step_0_5db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_0_5_DB) );
-	case step_1_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_1_0_DB) );
-	case step_1_5db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_1_5_DB) );
-	case step_2_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_2_0_DB) );
-	case step_3_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_3_0_DB) );
-	case step_4_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_4_0_DB) );
-	case step_5_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_5_0_DB) );
-	case step_6_0db: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_6_0_DB) );
+	case step_0_5db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_0_5_DB));
+	case step_1_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_1_0_DB));
+	case step_1_5db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_1_5_DB));
+	case step_2_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_2_0_DB));
+	case step_3_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_3_0_DB));
+	case step_4_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_4_0_DB));
+	case step_5_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_5_0_DB));
+	case step_6_0db: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESSTEP) | OOKPEAK_THRESHSTEP_6_0_DB));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -545,14 +562,14 @@ int rf69_set_ook_threshold_dec(struct spi_device *spi, enum thresholdDecrement t
 	#endif
 
 	switch (thresholdDecrement) {
-	case dec_every8th: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_8TH) );
-	case dec_every4th: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_4TH) );
-	case dec_every2nd: return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_2ND) );
-	case dec_once:	   return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_ONCE) );
-	case dec_twice:	   return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_TWICE) );
-	case dec_4times:   return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_4_TIMES) );
-	case dec_8times:   return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_8_TIMES) );
-	case dec_16times:  return WRITE_REG(REG_OOKPEAK, ( (READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_16_TIMES) );
+	case dec_every8th: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_8TH));
+	case dec_every4th: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_4TH));
+	case dec_every2nd: return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_EVERY_2ND));
+	case dec_once:	   return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_ONCE));
+	case dec_twice:	   return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_TWICE));
+	case dec_4times:   return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_4_TIMES));
+	case dec_8times:   return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_8_TIMES));
+	case dec_16times:  return WRITE_REG(REG_OOKPEAK, ((READ_REG(REG_OOKPEAK) & ~MASK_OOKPEAK_THRESDEC) | OOKPEAK_THRESHDEC_16_TIMES));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -570,29 +587,38 @@ int rf69_set_dio_mapping(struct spi_device *spi, u8 DIONumber, u8 value)
 		dev_dbg(&spi->dev, "set: DIO mapping");
 	#endif
 
-	// check DIO number
-	if (DIONumber > 5) {
+	switch (DIONumber) {
+	case 0:
+		mask = MASK_DIO0; shift = SHIFT_DIO0; regaddr = REG_DIOMAPPING1;
+		break;
+	case 1:
+		mask = MASK_DIO1; shift = SHIFT_DIO1; regaddr = REG_DIOMAPPING1;
+		break;
+	case 2:
+		mask = MASK_DIO2; shift = SHIFT_DIO2; regaddr = REG_DIOMAPPING1;
+		break;
+	case 3:
+		mask = MASK_DIO3; shift = SHIFT_DIO3; regaddr = REG_DIOMAPPING1;
+		break;
+	case 4:
+		mask = MASK_DIO4; shift = SHIFT_DIO4; regaddr = REG_DIOMAPPING2;
+		break;
+	case 5:
+		mask = MASK_DIO5; shift = SHIFT_DIO5; regaddr = REG_DIOMAPPING2;
+		break;
+	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
 	}
 
-	switch (DIONumber) {
-	case 0: mask=MASK_DIO0; shift=SHIFT_DIO0; regaddr=REG_DIOMAPPING1; break;
-	case 1: mask=MASK_DIO1; shift=SHIFT_DIO1; regaddr=REG_DIOMAPPING1; break;
-	case 2: mask=MASK_DIO2; shift=SHIFT_DIO2; regaddr=REG_DIOMAPPING1; break;
-	case 3: mask=MASK_DIO3; shift=SHIFT_DIO3; regaddr=REG_DIOMAPPING1; break;
-	case 4: mask=MASK_DIO4; shift=SHIFT_DIO4; regaddr=REG_DIOMAPPING2; break;
-	case 5: mask=MASK_DIO5; shift=SHIFT_DIO5; regaddr=REG_DIOMAPPING2; break;
-	}
-
 	// read reg
-	regValue=READ_REG(regaddr);
+	regValue = READ_REG(regaddr);
 	// delete old value
 	regValue = regValue & ~mask;
 	// add new value
 	regValue = regValue | value << shift;
 	// write back
-	return WRITE_REG(regaddr,regValue);
+	return WRITE_REG(regaddr, regValue);
 }
 
 bool rf69_get_flag(struct spi_device *spi, enum flag flag)
@@ -601,7 +627,7 @@ bool rf69_get_flag(struct spi_device *spi, enum flag flag)
 		dev_dbg(&spi->dev, "get: flag");
 	#endif
 
-	switch(flag) {
+	switch (flag) {
 	case modeSwitchCompleted:     return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_MODE_READY);
 	case readyToReceive:	      return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_RX_READY);
 	case readyToSend:	      return (READ_REG(REG_IRQFLAGS1) & MASK_IRQFLAGS1_TX_READY);
@@ -629,7 +655,7 @@ int rf69_reset_flag(struct spi_device *spi, enum flag flag)
 		dev_dbg(&spi->dev, "reset: flag");
 	#endif
 
-	switch(flag) {
+	switch (flag) {
 	case rssiExceededThreshold: return WRITE_REG(REG_IRQFLAGS1, MASK_IRQFLAGS1_RSSI);
 	case syncAddressMatch:	    return WRITE_REG(REG_IRQFLAGS1, MASK_IRQFLAGS1_SYNC_ADDRESS_MATCH);
 	case fifoOverrun:	    return WRITE_REG(REG_IRQFLAGS2, MASK_IRQFLAGS2_FIFO_OVERRUN);
@@ -689,10 +715,9 @@ int rf69_set_preamble_length(struct spi_device *spi, u16 preambleLength)
 
 	/* transmit to chip */
 	retval = WRITE_REG(REG_PREAMBLE_MSB, msb);
-	if (retval) return retval;
-	retval = WRITE_REG(REG_PREAMBLE_LSB, lsb);
-
-	return retval;
+	if (retval)
+		return retval;
+	return WRITE_REG(REG_PREAMBLE_LSB, lsb);
 }
 
 int rf69_set_sync_enable(struct spi_device *spi, enum optionOnOff optionOnOff)
@@ -701,9 +726,9 @@ int rf69_set_sync_enable(struct spi_device *spi, enum optionOnOff optionOnOff)
 		dev_dbg(&spi->dev, "set: sync enable");
 	#endif
 
-	switch(optionOnOff) {
-	case optionOn:	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) |  MASK_SYNC_CONFIG_SYNC_ON) );
-	case optionOff:	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_ON) );
+	switch (optionOnOff) {
+	case optionOn:	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) |  MASK_SYNC_CONFIG_SYNC_ON));
+	case optionOff:	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_ON));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -716,9 +741,9 @@ int rf69_set_fifo_fill_condition(struct spi_device *spi, enum fifoFillCondition
 		dev_dbg(&spi->dev, "set: fifo fill condition");
 	#endif
 
-	switch(fifoFillCondition) {
-	case always:		 return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) |  MASK_SYNC_CONFIG_FIFO_FILL_CONDITION) );
-	case afterSyncInterrupt: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_FIFO_FILL_CONDITION) );
+	switch (fifoFillCondition) {
+	case always:		 return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) |  MASK_SYNC_CONFIG_FIFO_FILL_CONDITION));
+	case afterSyncInterrupt: return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_FIFO_FILL_CONDITION));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -738,7 +763,7 @@ int rf69_set_sync_size(struct spi_device *spi, u8 syncSize)
 	}
 
 	// write value
-	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_SIZE) | (syncSize << 3) );
+	return WRITE_REG(REG_SYNC_CONFIG, (READ_REG(REG_SYNC_CONFIG) & ~MASK_SYNC_CONFIG_SYNC_SIZE) | (syncSize << 3));
 }
 
 int rf69_set_sync_tolerance(struct spi_device *spi, u8 syncTolerance)
@@ -783,9 +808,9 @@ int rf69_set_packet_format(struct spi_device *spi, enum packetFormat packetForma
 		dev_dbg(&spi->dev, "set: packet format");
 	#endif
 
-	switch(packetFormat) {
-	case packetLengthVar: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) |  MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE) );
-	case packetLengthFix: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE) );
+	switch (packetFormat) {
+	case packetLengthVar: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) |  MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE));
+	case packetLengthFix: return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_PAKET_FORMAT_VARIABLE));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -798,9 +823,9 @@ int rf69_set_crc_enable(struct spi_device *spi, enum optionOnOff optionOnOff)
 		dev_dbg(&spi->dev, "set: crc enable");
 	#endif
 
-	switch(optionOnOff) {
-	case optionOn:	return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) |  MASK_PACKETCONFIG1_CRC_ON) );
-	case optionOff:	return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_CRC_ON) );
+	switch (optionOnOff) {
+	case optionOn:	return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) |  MASK_PACKETCONFIG1_CRC_ON));
+	case optionOff:	return WRITE_REG(REG_PACKETCONFIG1, (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_CRC_ON));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -814,9 +839,9 @@ int rf69_set_adressFiltering(struct spi_device *spi, enum addressFiltering addre
 	#endif
 
 	switch (addressFiltering) {
-	case filteringOff:	     return WRITE_REG(REG_PACKETCONFIG1, ( (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_OFF) );
-	case nodeAddress:	     return WRITE_REG(REG_PACKETCONFIG1, ( (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODE) );
-	case nodeOrBroadcastAddress: return WRITE_REG(REG_PACKETCONFIG1, ( (READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODEBROADCAST) );
+	case filteringOff:	     return WRITE_REG(REG_PACKETCONFIG1, ((READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_OFF));
+	case nodeAddress:	     return WRITE_REG(REG_PACKETCONFIG1, ((READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODE));
+	case nodeOrBroadcastAddress: return WRITE_REG(REG_PACKETCONFIG1, ((READ_REG(REG_PACKETCONFIG1) & ~MASK_PACKETCONFIG1_ADDRESSFILTERING) | PACKETCONFIG1_ADDRESSFILTERING_NODEBROADCAST));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -865,9 +890,9 @@ int rf69_set_tx_start_condition(struct spi_device *spi, enum txStartCondition tx
 		dev_dbg(&spi->dev, "set: start condition");
 	#endif
 
-	switch(txStartCondition) {
-	case fifoLevel:	   return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) & ~MASK_FIFO_THRESH_TXSTART) );
-	case fifoNotEmpty: return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) |  MASK_FIFO_THRESH_TXSTART) );
+	switch (txStartCondition) {
+	case fifoLevel:	   return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) & ~MASK_FIFO_THRESH_TXSTART));
+	case fifoNotEmpty: return WRITE_REG(REG_FIFO_THRESH, (READ_REG(REG_FIFO_THRESH) |  MASK_FIFO_THRESH_TXSTART));
 	default:
 		dev_dbg(&spi->dev, "set: illegal input param");
 		return -EINVAL;
@@ -894,7 +919,7 @@ int rf69_set_fifo_threshold(struct spi_device *spi, u8 threshold)
 		return retval;
 
 	// access the fifo to activate new threshold
-	return rf69_read_fifo (spi, (u8*) &retval, 1); // retval used as buffer
+	return rf69_read_fifo(spi, (u8 *)&retval, 1); // retval used as buffer
 }
 
 int rf69_set_dagc(struct spi_device *spi, enum dagc dagc)
@@ -903,7 +928,7 @@ int rf69_set_dagc(struct spi_device *spi, enum dagc dagc)
 		dev_dbg(&spi->dev, "set: dagc");
 	#endif
 
-	switch(dagc) {
+	switch (dagc) {
 	case normalMode:		 return WRITE_REG(REG_TESTDAGC, DAGC_NORMAL);
 	case improve:			 return WRITE_REG(REG_TESTDAGC, DAGC_IMPROVED_LOWBETA0);
 	case improve4LowModulationIndex: return WRITE_REG(REG_TESTDAGC, DAGC_IMPROVED_LOWBETA1);
@@ -934,14 +959,14 @@ int rf69_read_fifo (struct spi_device *spi, u8 *buffer, unsigned int size)
 	/* prepare a bidirectional transfer */
 	local_buffer[0] = REG_FIFO;
 	memset(&transfer, 0, sizeof(transfer));
-  	transfer.tx_buf = local_buffer;
-  	transfer.rx_buf = local_buffer;
+	transfer.tx_buf = local_buffer;
+	transfer.rx_buf = local_buffer;
 	transfer.len	= size+1;
 
 	retval = spi_sync_transfer(spi, &transfer, 1);
 
 	#ifdef DEBUG_FIFO_ACCESS
-		for (i=0; i<size; i++)
+		for (i = 0; i < size; i++)
 			dev_dbg(&spi->dev, "%d - 0x%x\n", i, local_buffer[i+1]);
 	#endif
 
@@ -969,8 +994,8 @@ int rf69_write_fifo(struct spi_device *spi, u8 *buffer, unsigned int size)
 	memcpy(&local_buffer[1], buffer, size);  // TODO: ohne memcopy wäre schöner
 
 	#ifdef DEBUG_FIFO_ACCESS
-		for (i=0; i<size; i++)
-			dev_dbg(&spi->dev, "0x%x\n",buffer[i]);
+		for (i = 0; i < size; i++)
+			dev_dbg(&spi->dev, "0x%x\n", buffer[i]);
 	#endif
 
 	return spi_write (spi, local_buffer, size + 1);
diff --git a/drivers/staging/rtl8188eu/Makefile b/drivers/staging/rtl8188eu/Makefile
index 27af86e05098..033fb2e6950d 100644
--- a/drivers/staging/rtl8188eu/Makefile
+++ b/drivers/staging/rtl8188eu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 r8188eu-y :=				\
 		core/rtw_ap.o		\
 		core/rtw_cmd.o		\
diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index 32a483769975..fa611455109a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -754,7 +754,7 @@ static void start_bss_network(struct adapter *padapter, u8 *pbuf)
 	}
 
 	/* setting only at  first time */
-	if (!(pmlmepriv->cur_network.join_res)) {
+	if (pmlmepriv->cur_network.join_res != true) {
 		/* WEP Key will be set before this function, do not
 		 * clear CAM.
 		 */
diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 9461bce883ea..be8542676adf 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -333,7 +333,7 @@ u8 rtw_createbss_cmd(struct adapter  *padapter)
 	else
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_, (" createbss for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
 
-	pcmd = kzalloc(sizeof(struct cmd_obj), GFP_KERNEL);
+	pcmd = kzalloc(sizeof(struct cmd_obj), GFP_ATOMIC);
 	if (!pcmd) {
 		res = _FAIL;
 		goto exit;
@@ -508,7 +508,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu
 
 	if (enqueue) {
 		/* need enqueue, prepare cmd_obj and enqueue */
-		cmdobj = kzalloc(sizeof(*cmdobj), GFP_KERNEL);
+		cmdobj = kzalloc(sizeof(*cmdobj), GFP_ATOMIC);
 		if (!cmdobj) {
 			res = _FAIL;
 			kfree(param);
diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index b9bdff0490ca..2c4c8c43b1ad 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -48,7 +48,7 @@ void Efuse_PowerSwitch(
 	if (PwrState) {
 		usb_write8(pAdapter, REG_EFUSE_ACCESS, EFUSE_ACCESS_ON);
 
-		/*  1.2V Power: From VDDON with Power Cut(0x0000h[15]), defualt valid */
+		/*  1.2V Power: From VDDON with Power Cut(0x0000h[15]), default valid */
 		tmpV16 = usb_read16(pAdapter, REG_SYS_ISO_CTRL);
 		if (!(tmpV16 & PWC_EV12V)) {
 			tmpV16 |= PWC_EV12V;
diff --git a/drivers/staging/rtl8188eu/core/rtw_led.c b/drivers/staging/rtl8188eu/core/rtw_led.c
index 1b9bc9817a57..c4335893d8f6 100644
--- a/drivers/staging/rtl8188eu/core/rtw_led.c
+++ b/drivers/staging/rtl8188eu/core/rtw_led.c
@@ -22,9 +22,9 @@
 /*		Callback function of LED BlinkTimer, */
 /*		it just schedules to corresponding BlinkWorkItem/led_blink_hdl */
 /*  */
-void BlinkTimerCallback(unsigned long data)
+static void BlinkTimerCallback(struct timer_list *t)
 {
-	struct LED_871x *pLed = (struct LED_871x *)data;
+	struct LED_871x *pLed = from_timer(pLed, t, BlinkTimer);
 	struct adapter *padapter = pLed->padapter;
 
 	if ((padapter->bSurpriseRemoved) || (padapter->bDriverStopped))
@@ -73,8 +73,7 @@ void InitLed871x(struct adapter *padapter, struct LED_871x *pLed)
 
 	ResetLedStatus(pLed);
 
-	setup_timer(&pLed->BlinkTimer, BlinkTimerCallback,
-		    (unsigned long)pLed);
+	timer_setup(&pLed->BlinkTimer, BlinkTimerCallback, 0);
 
 	INIT_WORK(&pLed->BlinkWorkItem, BlinkWorkItemCallback);
 }
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index f663e6c41f8a..1cd49e292804 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -106,10 +106,10 @@ void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
 
 void rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
 {
-	rtw_free_mlme_priv_ie_data(pmlmepriv);
-
-	if (pmlmepriv)
+	if (pmlmepriv) {
+		rtw_free_mlme_priv_ie_data(pmlmepriv);
 		vfree(pmlmepriv->free_bss_buf);
+	}
 }
 
 struct wlan_network *_rtw_alloc_network(struct mlme_priv *pmlmepriv)
@@ -1135,7 +1135,7 @@ static u8 search_max_mac_id(struct adapter *padapter)
 
 #if defined(CONFIG_88EU_AP_MODE)
 	if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
-		for (aid = (pstapriv->max_num_sta); aid > 0; aid--) {
+		for (aid = pstapriv->max_num_sta; aid > 0; aid--) {
 			if (pstapriv->sta_aid[aid-1])
 				break;
 		}
@@ -1143,7 +1143,7 @@ static u8 search_max_mac_id(struct adapter *padapter)
 	} else
 #endif
 	{/* adhoc  id =  31~2 */
-		for (mac_id = (NUM_STA-1); mac_id >= IBSS_START_MAC_ID; mac_id--) {
+		for (mac_id = NUM_STA-1; mac_id >= IBSS_START_MAC_ID; mac_id--) {
 			if (pmlmeinfo->FW_sta_info[mac_id].status == 1)
 				break;
 		}
@@ -1329,12 +1329,13 @@ void rtw_cpwm_event_callback(struct adapter *padapter, u8 *pbuf)
 }
 
 /*
- * _rtw_join_timeout_handler - Timeout/faliure handler for CMD JoinBss
+ * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
  * @adapter: pointer to struct adapter structure
  */
-void _rtw_join_timeout_handler (unsigned long data)
+void _rtw_join_timeout_handler (struct timer_list *t)
 {
-	struct adapter *adapter = (struct adapter *)data;
+	struct adapter *adapter =
+		from_timer(adapter, t, mlmepriv.assoc_timer);
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 	int do_join_r;
 
@@ -1373,9 +1374,10 @@ void _rtw_join_timeout_handler (unsigned long data)
  * rtw_scan_timeout_handler - Timeout/Faliure handler for CMD SiteSurvey
  * @adapter: pointer to struct adapter structure
  */
-void rtw_scan_timeout_handler (unsigned long data)
+void rtw_scan_timeout_handler (struct timer_list *t)
 {
-	struct adapter *adapter = (struct adapter *)data;
+	struct adapter *adapter =
+		from_timer(adapter, t, mlmepriv.scan_to_timer);
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 
 	DBG_88E(FUNC_ADPT_FMT" fw_state=%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
@@ -1400,9 +1402,10 @@ static void rtw_auto_scan_handler(struct adapter *padapter)
 	}
 }
 
-void rtw_dynamic_check_timer_handlder(unsigned long data)
+void rtw_dynamic_check_timer_handlder(struct timer_list *t)
 {
-	struct adapter *adapter = (struct adapter *)data;
+	struct adapter *adapter =
+		from_timer(adapter, t, mlmepriv.dynamic_chk_timer);
 	struct registry_priv *pregistrypriv = &adapter->registrypriv;
 
 	if (!adapter)
@@ -1569,7 +1572,7 @@ int rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
 	psetauthparm->mode = (unsigned char)psecuritypriv->dot11AuthAlgrthm;
 	pcmd->cmdcode = _SetAuth_CMD_;
 	pcmd->parmbuf = (unsigned char *)psetauthparm;
-	pcmd->cmdsz =  (sizeof(struct setauth_parm));
+	pcmd->cmdsz =  sizeof(struct setauth_parm);
 	pcmd->rsp = NULL;
 	pcmd->rspsz = 0;
 	INIT_LIST_HEAD(&pcmd->list);
@@ -1648,7 +1651,7 @@ int rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, in
 	}
 	pcmd->cmdcode = _SetKey_CMD_;
 	pcmd->parmbuf = (u8 *)psetkeyparm;
-	pcmd->cmdsz =  (sizeof(struct setkey_parm));
+	pcmd->cmdsz =  sizeof(struct setkey_parm);
 	pcmd->rsp = NULL;
 	pcmd->rspsz = 0;
 	INIT_LIST_HEAD(&pcmd->list);
@@ -1814,45 +1817,45 @@ void rtw_update_registrypriv_dev_network(struct adapter *adapter)
 	struct	security_priv *psecuritypriv = &adapter->securitypriv;
 	struct	wlan_network	*cur_network = &adapter->mlmepriv.cur_network;
 
-	pdev_network->Privacy = (psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0); /*  adhoc no 802.1x */
+	pdev_network->Privacy = psecuritypriv->dot11PrivacyAlgrthm > 0 ? 1 : 0; /*  adhoc no 802.1x */
 
 	pdev_network->Rssi = 0;
 
 	switch (pregistrypriv->wireless_mode) {
 	case WIRELESS_11B:
-		pdev_network->NetworkTypeInUse = (Ndis802_11DS);
+		pdev_network->NetworkTypeInUse = Ndis802_11DS;
 		break;
 	case WIRELESS_11G:
 	case WIRELESS_11BG:
 	case WIRELESS_11_24N:
 	case WIRELESS_11G_24N:
 	case WIRELESS_11BG_24N:
-		pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
+		pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
 		break;
 	case WIRELESS_11A:
 	case WIRELESS_11A_5N:
-		pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
+		pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
 		break;
 	case WIRELESS_11ABGN:
 		if (pregistrypriv->channel > 14)
-			pdev_network->NetworkTypeInUse = (Ndis802_11OFDM5);
+			pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
 		else
-			pdev_network->NetworkTypeInUse = (Ndis802_11OFDM24);
+			pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
 		break;
 	default:
 		/*  TODO */
 		break;
 	}
 
-	pdev_network->Configuration.DSConfig = (pregistrypriv->channel);
+	pdev_network->Configuration.DSConfig = pregistrypriv->channel;
 	RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_,
 		 ("pregistrypriv->channel=%d, pdev_network->Configuration.DSConfig=0x%x\n",
 		 pregistrypriv->channel, pdev_network->Configuration.DSConfig));
 
 	if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
-		pdev_network->Configuration.ATIMWindow = (0);
+		pdev_network->Configuration.ATIMWindow = 0;
 
-	pdev_network->InfrastructureMode = (cur_network->network.InfrastructureMode);
+	pdev_network->InfrastructureMode = cur_network->network.InfrastructureMode;
 
 	/*  1. Supported rates */
 	/*  2. IE */
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 611c9409bb98..d73e9bdc80cc 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -605,7 +605,9 @@ static void issue_probersp(struct adapter *padapter, unsigned char *da)
 	dump_mgntframe(padapter, pmgntframe);
 }
 
-static int issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da, bool wait_ack)
+static int issue_probereq(struct adapter *padapter,
+			  struct ndis_802_11_ssid *pssid, u8 *da,
+			  bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame		*pmgntframe;
@@ -707,7 +709,7 @@ static int issue_probereq_ex(struct adapter *padapter,
 	unsigned long start = jiffies;
 
 	do {
-		ret = issue_probereq(padapter, pssid, da, wait_ms > 0 ? true : false);
+		ret = issue_probereq(padapter, pssid, da, wait_ms > 0);
 
 		i++;
 
@@ -1196,7 +1198,8 @@ exit:
 }
 
 /* when wait_ack is true, this function should be called at process context */
-static int _issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned int power_mode, int wait_ack)
+static int _issue_nulldata(struct adapter *padapter, unsigned char *da,
+			   unsigned int power_mode, bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame			*pmgntframe;
@@ -1269,7 +1272,8 @@ exit:
 
 /* when wait_ms > 0 , this function should be called at process context */
 /* da == NULL for station mode */
-int issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned int power_mode, int try_cnt, int wait_ms)
+int issue_nulldata(struct adapter *padapter, unsigned char *da,
+		   unsigned int power_mode, int try_cnt, int wait_ms)
 {
 	int ret;
 	int i = 0;
@@ -1283,7 +1287,7 @@ int issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned int pow
 		da = pnetwork->MacAddress;
 
 	do {
-		ret = _issue_nulldata(padapter, da, power_mode, wait_ms > 0 ? true : false);
+		ret = _issue_nulldata(padapter, da, power_mode, wait_ms > 0);
 
 		i++;
 
@@ -1316,7 +1320,8 @@ exit:
 }
 
 /* when wait_ack is true, this function should be called at process context */
-static int _issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16 tid, int wait_ack)
+static int _issue_qos_nulldata(struct adapter *padapter, unsigned char *da,
+			       u16 tid, bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame			*pmgntframe;
@@ -1396,7 +1401,8 @@ exit:
 
 /* when wait_ms > 0 , this function should be called at process context */
 /* da == NULL for station mode */
-int issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16 tid, int try_cnt, int wait_ms)
+int issue_qos_nulldata(struct adapter *padapter, unsigned char *da,
+		       u16 tid, int try_cnt, int wait_ms)
 {
 	int ret;
 	int i = 0;
@@ -1410,7 +1416,7 @@ int issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16 tid, int
 		da = pnetwork->MacAddress;
 
 	do {
-		ret = _issue_qos_nulldata(padapter, da, tid, wait_ms > 0 ? true : false);
+		ret = _issue_qos_nulldata(padapter, da, tid, wait_ms > 0);
 
 		i++;
 
@@ -1442,7 +1448,8 @@ exit:
 	return ret;
 }
 
-static int _issue_deauth(struct adapter *padapter, unsigned char *da, unsigned short reason, u8 wait_ack)
+static int _issue_deauth(struct adapter *padapter, unsigned char *da,
+			 unsigned short reason, bool wait_ack)
 {
 	struct xmit_frame			*pmgntframe;
 	struct pkt_attrib			*pattrib;
@@ -1502,7 +1509,8 @@ exit:
 	return ret;
 }
 
-int issue_deauth(struct adapter *padapter, unsigned char *da, unsigned short reason)
+int issue_deauth(struct adapter *padapter, unsigned char *da,
+		 unsigned short reason)
 {
 	DBG_88E("%s to %pM\n", __func__, da);
 	return _issue_deauth(padapter, da, reason, false);
@@ -1517,7 +1525,7 @@ static int issue_deauth_ex(struct adapter *padapter, u8 *da,
 	unsigned long start = jiffies;
 
 	do {
-		ret = _issue_deauth(padapter, da, reason, wait_ms > 0 ? true : false);
+		ret = _issue_deauth(padapter, da, reason, wait_ms > 0);
 
 		i++;
 
@@ -3413,7 +3421,7 @@ static unsigned int OnAssocRsp(struct adapter *padapter,
 	/* following are moved to join event callback function */
 	/* to handle HT, WMM, rate adaptive, update MAC reg */
 	/* for not to handle the synchronous IO in the tasklet */
-	for (i = (6 + WLAN_HDR_A3_LEN); i < pkt_len;) {
+	for (i = 6 + WLAN_HDR_A3_LEN; i < pkt_len;) {
 		pIE = (struct ndis_802_11_var_ie *)(pframe + i);
 
 		switch (pIE->ElementID) {
@@ -3757,7 +3765,8 @@ static unsigned int on_action_public_vendor(struct recv_frame *precv_frame)
 	return ret;
 }
 
-static unsigned int on_action_public_default(struct recv_frame *precv_frame, u8 action)
+static unsigned int on_action_public_default(struct recv_frame *precv_frame,
+					     u8 action)
 {
 	unsigned int ret = _FAIL;
 	u8 *pframe = precv_frame->pkt->data;
@@ -3972,9 +3981,10 @@ static int has_channel(struct rt_channel_info *channel_set,
 	return 0;
 }
 
-static void init_channel_list(struct adapter *padapter, struct rt_channel_info *channel_set,
-							  u8 chanset_size,
-							struct p2p_channels *channel_list)
+static void init_channel_list(struct adapter *padapter,
+			      struct rt_channel_info *channel_set,
+			      u8 chanset_size,
+			      struct p2p_channels *channel_list)
 {
 	struct p2p_oper_class_map op_class[] = {
 		{ IEEE80211G,  81,   1,  13,  1, BW20 },
@@ -3999,7 +4009,7 @@ static void init_channel_list(struct adapter *padapter, struct rt_channel_info *
 				continue;
 
 			if ((0 == (padapter->registrypriv.cbw40_enable & BIT(1))) &&
-			    ((BW40MINUS == o->bw) || (BW40PLUS == o->bw)))
+			    ((o->bw == BW40MINUS) || (o->bw == BW40PLUS)))
 				continue;
 
 			if (reg == NULL) {
@@ -4015,7 +4025,8 @@ static void init_channel_list(struct adapter *padapter, struct rt_channel_info *
 	channel_list->reg_classes = cla;
 }
 
-static u8 init_channel_set(struct adapter *padapter, u8 ChannelPlan, struct rt_channel_info *channel_set)
+static u8 init_channel_set(struct adapter *padapter, u8 ChannelPlan,
+			   struct rt_channel_info *channel_set)
 {
 	u8 index, chanset_size = 0;
 	u8 b2_4GBand = false;
@@ -4030,7 +4041,7 @@ static u8 init_channel_set(struct adapter *padapter, u8 ChannelPlan, struct rt_c
 
 	if (padapter->registrypriv.wireless_mode & WIRELESS_11G) {
 		b2_4GBand = true;
-		if (RT_CHANNEL_DOMAIN_REALTEK_DEFINE == ChannelPlan)
+		if (ChannelPlan == RT_CHANNEL_DOMAIN_REALTEK_DEFINE)
 			Index2G = RTW_CHANNEL_PLAN_MAP_REALTEK_DEFINE.Index2G;
 		else
 			Index2G = RTW_ChannelPlanMap[ChannelPlan].Index2G;
@@ -4040,14 +4051,14 @@ static u8 init_channel_set(struct adapter *padapter, u8 ChannelPlan, struct rt_c
 		for (index = 0; index < RTW_ChannelPlan2G[Index2G].Len; index++) {
 			channel_set[chanset_size].ChannelNum = RTW_ChannelPlan2G[Index2G].Channel[index];
 
-			if ((RT_CHANNEL_DOMAIN_GLOBAL_DOAMIN == ChannelPlan) ||/* Channel 1~11 is active, and 12~14 is passive */
-			    (RT_CHANNEL_DOMAIN_GLOBAL_DOAMIN_2G == ChannelPlan)) {
+			if ((ChannelPlan == RT_CHANNEL_DOMAIN_GLOBAL_DOAMIN) ||/* Channel 1~11 is active, and 12~14 is passive */
+			    (ChannelPlan == RT_CHANNEL_DOMAIN_GLOBAL_DOAMIN_2G)) {
 				if (channel_set[chanset_size].ChannelNum >= 1 && channel_set[chanset_size].ChannelNum <= 11)
 					channel_set[chanset_size].ScanType = SCAN_ACTIVE;
 				else if ((channel_set[chanset_size].ChannelNum  >= 12 && channel_set[chanset_size].ChannelNum  <= 14))
 					channel_set[chanset_size].ScanType  = SCAN_PASSIVE;
-			} else if (RT_CHANNEL_DOMAIN_WORLD_WIDE_13 == ChannelPlan ||
-				   RT_CHANNEL_DOMAIN_2G_WORLD == Index2G) {/*  channel 12~13, passive scan */
+			} else if (ChannelPlan == RT_CHANNEL_DOMAIN_WORLD_WIDE_13 ||
+				   Index2G == RT_CHANNEL_DOMAIN_2G_WORLD) {/*  channel 12~13, passive scan */
 				if (channel_set[chanset_size].ChannelNum <= 11)
 					channel_set[chanset_size].ScanType = SCAN_ACTIVE;
 				else
@@ -4105,7 +4116,9 @@ void free_mlme_ext_priv(struct mlme_ext_priv *pmlmeext)
 	}
 }
 
-static void _mgt_dispatcher(struct adapter *padapter, struct mlme_handler *ptable, struct recv_frame *precv_frame)
+static void _mgt_dispatcher(struct adapter *padapter,
+			    struct mlme_handler *ptable,
+			    struct recv_frame *precv_frame)
 {
 	u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
 	u8 *pframe = precv_frame->pkt->data;
@@ -4351,7 +4364,8 @@ void report_join_res(struct adapter *padapter, int res)
 	rtw_enqueue_cmd(pcmdpriv, pcmd_obj);
 }
 
-void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsigned short reason)
+void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr,
+			  unsigned short reason)
 {
 	struct cmd_obj *pcmd_obj;
 	u8 *pevtcmd;
@@ -4406,7 +4420,8 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi
 	rtw_enqueue_cmd(pcmdpriv, pcmd_obj);
 }
 
-void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int cam_idx)
+void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr,
+			  int cam_idx)
 {
 	struct cmd_obj *pcmd_obj;
 	u8 *pevtcmd;
@@ -4767,7 +4782,7 @@ void linked_status_chk(struct adapter *padapter)
 			if (pmlmeinfo->FW_sta_info[i].status == 1) {
 				psta = pmlmeinfo->FW_sta_info[i].psta;
 
-				if (NULL == psta)
+				if (psta == NULL)
 					continue;
 				if (pmlmeinfo->FW_sta_info[i].rx_pkt == sta_rx_pkts(psta)) {
 					if (pmlmeinfo->FW_sta_info[i].retry < 3) {
@@ -4788,9 +4803,10 @@ void linked_status_chk(struct adapter *padapter)
 	}
 }
 
-void survey_timer_hdl(unsigned long data)
+void survey_timer_hdl(struct timer_list *t)
 {
-	struct adapter *padapter = (struct adapter *)data;
+	struct adapter *padapter = from_timer(padapter, t,
+					      mlmeextpriv.survey_timer);
 	struct cmd_obj	*ph2c;
 	struct sitesurvey_parm	*psurveyPara;
 	struct cmd_priv					*pcmdpriv = &padapter->cmdpriv;
@@ -4828,9 +4844,10 @@ exit_survey_timer_hdl:
 	return;
 }
 
-void link_timer_hdl(unsigned long data)
+void link_timer_hdl(struct timer_list *t)
 {
-	struct adapter *padapter = (struct adapter *)data;
+	struct adapter *padapter = from_timer(padapter, t,
+					    mlmeextpriv.link_timer);
 	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
 
@@ -4864,9 +4881,9 @@ void link_timer_hdl(unsigned long data)
 	}
 }
 
-void addba_timer_hdl(unsigned long data)
+void addba_timer_hdl(struct timer_list *t)
 {
-	struct sta_info *psta = (struct sta_info *)data;
+	struct sta_info *psta = from_timer(psta, t, addba_retry_timer);
 	struct ht_priv	*phtpriv;
 
 	if (!psta)
@@ -5125,8 +5142,10 @@ u8 disconnect_hdl(struct adapter *padapter, unsigned char *pbuf)
 	return	H2C_SUCCESS;
 }
 
-static int rtw_scan_ch_decision(struct adapter *padapter, struct rtw_ieee80211_channel *out,
-	u32 out_num, struct rtw_ieee80211_channel *in, u32 in_num)
+static int rtw_scan_ch_decision(struct adapter *padapter,
+				struct rtw_ieee80211_channel *out,
+				u32 out_num,
+				struct rtw_ieee80211_channel *in, u32 in_num)
 {
 	int i, j;
 	int set_idx;
diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
index f86c9cebf09a..ac27f9a023bc 100644
--- a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
+++ b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
@@ -37,7 +37,7 @@ static int rtw_hw_suspend(struct adapter *padapter)
 	/* system suspend */
 	LeaveAllPowerSaveMode(padapter);
 
-	DBG_88E("==> rtw_hw_suspend\n");
+	DBG_88E("==> %s\n", __func__);
 	mutex_lock(&pwrpriv->mutex_lock);
 	pwrpriv->bips_processing = true;
 	/* s1. */
@@ -89,7 +89,7 @@ static int rtw_hw_resume(struct adapter *padapter)
 
 
 	/* system resume */
-	DBG_88E("==> rtw_hw_resume\n");
+	DBG_88E("==> %s\n", __func__);
 	mutex_lock(&pwrpriv->mutex_lock);
 	pwrpriv->bips_processing = true;
 	rtw_reset_drv_sw(padapter);
@@ -146,7 +146,7 @@ void ips_enter(struct adapter *padapter)
 	pwrpriv->ips_mode = pwrpriv->ips_mode_req;
 
 	pwrpriv->ips_enter_cnts++;
-	DBG_88E("==>ips_enter cnts:%d\n", pwrpriv->ips_enter_cnts);
+	DBG_88E("==>%s:%d\n", __func__, pwrpriv->ips_enter_cnts);
 	if (rf_off == pwrpriv->change_rfpwrstate) {
 		pwrpriv->bpower_saving = true;
 		DBG_88E_LEVEL(_drv_info_, "nolinked power save enter\n");
@@ -177,7 +177,7 @@ int ips_leave(struct adapter *padapter)
 		pwrpriv->bips_processing = true;
 		pwrpriv->change_rfpwrstate = rf_on;
 		pwrpriv->ips_leave_cnts++;
-		DBG_88E("==>ips_leave cnts:%d\n", pwrpriv->ips_leave_cnts);
+		DBG_88E("==>%s:%d\n", __func__, pwrpriv->ips_leave_cnts);
 
 		result = rtw_ips_pwr_up(padapter);
 		if (result == _SUCCESS)
@@ -198,7 +198,7 @@ int ips_leave(struct adapter *padapter)
 			}
 		}
 
-		DBG_88E("==> ips_leave.....LED(0x%08x)...\n", usb_read32(padapter, 0x4c));
+		DBG_88E("==> %s.....LED(0x%08x)...\n", __func__, usb_read32(padapter, 0x4c));
 		pwrpriv->bips_processing = false;
 
 		pwrpriv->bkeepfwalive = false;
@@ -276,9 +276,11 @@ exit:
 	pwrpriv->ps_processing = false;
 }
 
-static void pwr_state_check_handler(unsigned long data)
+static void pwr_state_check_handler(struct timer_list *t)
 {
-	struct adapter *padapter = (struct adapter *)data;
+	struct adapter *padapter =
+		from_timer(padapter, t,
+				pwrctrlpriv.pwr_state_check_timer);
 
 	rtw_ps_cmd(padapter);
 }
@@ -332,7 +334,7 @@ void rtw_set_rpwm(struct adapter *padapter, u8 pslv)
 
 	rpwm = pslv | pwrpriv->tog;
 	RT_TRACE(_module_rtl871x_pwrctrl_c_, _drv_notice_,
-		 ("rtw_set_rpwm: rpwm=0x%02x cpwm=0x%02x\n", rpwm, pwrpriv->cpwm));
+		 ("%s: rpwm=0x%02x cpwm=0x%02x\n", __func__, rpwm, pwrpriv->cpwm));
 
 	pwrpriv->rpwm = pslv;
 
@@ -525,7 +527,7 @@ void rtw_init_pwrctrl_priv(struct adapter *padapter)
 		pwrctrlpriv->power_mgnt = PS_MODE_ACTIVE;
 	else
 		pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/*  PS_MODE_MIN; */
-	pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
+	pwrctrlpriv->bLeisurePs = (pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE) ? true : false;
 
 	pwrctrlpriv->bFwCurrentInPSMode = false;
 
@@ -540,9 +542,8 @@ void rtw_init_pwrctrl_priv(struct adapter *padapter)
 
 	pwrctrlpriv->btcoex_rfon = false;
 
-	setup_timer(&pwrctrlpriv->pwr_state_check_timer,
-		    pwr_state_check_handler,
-		    (unsigned long)padapter);
+	timer_setup(&pwrctrlpriv->pwr_state_check_timer,
+		    pwr_state_check_handler, 0);
 }
 
 /*
@@ -569,7 +570,7 @@ int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *cal
 		DBG_88E("%s wait ps_processing...\n", __func__);
 		while (pwrpriv->ps_processing &&
 		       jiffies_to_msecs(jiffies - start) <= 3000)
-			usleep_range(1000, 3000);
+			udelay(1500);
 		if (pwrpriv->ps_processing)
 			DBG_88E("%s wait ps_processing timeout\n", __func__);
 		else
@@ -595,7 +596,7 @@ int _rtw_pwr_wakeup(struct adapter *padapter, u32 ips_deffer_ms, const char *cal
 	}
 	if (rf_off == pwrpriv->rf_pwrstate) {
 		DBG_88E("%s call ips_leave....\n", __func__);
-		if (_FAIL ==  ips_leave(padapter)) {
+		if (ips_leave(padapter) ==  _FAIL) {
 			DBG_88E("======> ips_leave fail.............\n");
 			ret = _FAIL;
 			goto exit;
@@ -628,12 +629,12 @@ int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
 
 	if (mode < PS_MODE_NUM) {
 		if (pwrctrlpriv->power_mgnt != mode) {
-			if (PS_MODE_ACTIVE == mode)
+			if (mode == PS_MODE_ACTIVE)
 				LeaveAllPowerSaveMode(padapter);
 			else
 				pwrctrlpriv->LpsIdleCount = 2;
 			pwrctrlpriv->power_mgnt = mode;
-			pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt) ? true : false;
+			pwrctrlpriv->bLeisurePs = (pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE) ? true : false;
 		}
 	} else {
 		ret = -EINVAL;
@@ -653,7 +654,7 @@ int rtw_pm_set_ips(struct adapter *padapter, u8 mode)
 	} else if (mode == IPS_NONE) {
 		rtw_ips_mode_req(pwrctrlpriv, mode);
 		DBG_88E("%s %s\n", __func__, "IPS_NONE");
-		if ((padapter->bSurpriseRemoved == 0) && (_FAIL == rtw_pwr_wakeup(padapter)))
+		if ((padapter->bSurpriseRemoved == 0) && (rtw_pwr_wakeup(padapter) == _FAIL))
 			return -EFAULT;
 	} else {
 		return -EINVAL;
diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index 3fd5f4102b36..6506a1587df0 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -39,7 +39,7 @@ static u8 rtw_rfc1042_header[] = {
        0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
 };
 
-static void rtw_signal_stat_timer_hdl(unsigned long data);
+static void rtw_signal_stat_timer_hdl(struct timer_list *t);
 
 void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
 {
@@ -86,9 +86,8 @@ int _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 	}
 	res = rtw_hal_init_recv_priv(padapter);
 
-	setup_timer(&precvpriv->signal_stat_timer,
-		    rtw_signal_stat_timer_hdl,
-		    (unsigned long)padapter);
+	timer_setup(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl,
+		    0);
 
 	precvpriv->signal_stat_sampling_interval = 1000; /* ms */
 
@@ -193,7 +192,7 @@ void rtw_free_recvframe_queue(struct __queue *pframequeue,  struct __queue *pfre
 	plist = phead->next;
 
 	while (phead != plist) {
-		hdr = container_of(plist, struct recv_frame, list);
+		hdr = list_entry(plist, struct recv_frame, list);
 
 		plist = plist->next;
 
@@ -237,32 +236,40 @@ static int recvframe_chkmic(struct adapter *adapter,
 	stainfo = rtw_get_stainfo(&adapter->stapriv, &prxattrib->ta[0]);
 
 	if (prxattrib->encrypt == _TKIP_) {
-		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:prxattrib->encrypt==_TKIP_\n"));
-		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic:da=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
-			 prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2], prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5]));
+		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
+			 ("\n %s: prxattrib->encrypt==_TKIP_\n", __func__));
+		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
+			 ("\n %s: da=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
+			  __func__, prxattrib->ra[0], prxattrib->ra[1], prxattrib->ra[2],
+			  prxattrib->ra[3], prxattrib->ra[4], prxattrib->ra[5]));
 
 		/* calculate mic code */
 		if (stainfo != NULL) {
 			if (IS_MCAST(prxattrib->ra)) {
 				if (!psecuritypriv) {
 					res = _FAIL;
-					RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
-					DBG_88E("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
+					RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
+						 ("\n %s: didn't install group key!!!!!!!!!!\n", __func__));
+					DBG_88E("\n %s: didn't install group key!!!!!!!!!!\n", __func__);
 					goto exit;
 				}
 				mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0];
 
-				RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n recvframe_chkmic: bcmc key\n"));
+				RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
+					 ("\n %s: bcmc key\n", __func__));
 			} else {
 				mickey = &stainfo->dot11tkiprxmickey.skey[0];
-				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("\n recvframe_chkmic: unicast key\n"));
+				RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
+					 ("\n %s: unicast key\n", __func__));
 			}
 
 			/* icv_len included the mic code */
-			datalen = precvframe->pkt->len-prxattrib->hdrlen - 8;
+			datalen = precvframe->pkt->len-prxattrib->hdrlen -
+				  prxattrib->iv_len-prxattrib->icv_len-8;
 			pframe = precvframe->pkt->data;
-			payload = pframe+prxattrib->hdrlen;
+			payload = pframe+prxattrib->hdrlen+prxattrib->iv_len;
 
+			RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n prxattrib->iv_len=%d prxattrib->icv_len=%d\n", prxattrib->iv_len, prxattrib->icv_len));
 			rtw_seccalctkipmic(mickey, pframe, payload, datalen, &miccode[0],
 					   (unsigned char)prxattrib->priority); /* care the length of the data */
 
@@ -273,8 +280,8 @@ static int recvframe_chkmic(struct adapter *adapter,
 			for (i = 0; i < 8; i++) {
 				if (miccode[i] != *(pframemic+i)) {
 					RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
-						 ("recvframe_chkmic:miccode[%d](%02x)!=*(pframemic+%d)(%02x) ",
-						 i, miccode[i], i, *(pframemic+i)));
+						 ("%s: miccode[%d](%02x)!=*(pframemic+%d)(%02x) ",
+						  __func__, i, miccode[i], i, *(pframemic + i)));
 					bmic_err = true;
 				}
 			}
@@ -346,7 +353,8 @@ static int recvframe_chkmic(struct adapter *adapter,
 				}
 			}
 		} else {
-			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, ("recvframe_chkmic: rtw_get_stainfo==NULL!!!\n"));
+			RT_TRACE(_module_rtl871x_recv_c_, _drv_err_,
+				 ("%s: rtw_get_stainfo==NULL!!!\n", __func__));
 		}
 
 		skb_trim(precvframe->pkt, precvframe->pkt->len - 8);
@@ -407,15 +415,9 @@ static struct recv_frame *decryptor(struct adapter *padapter,
 		default:
 			break;
 		}
-		if (res != _FAIL) {
-			memmove(precv_frame->pkt->data + precv_frame->attrib.iv_len, precv_frame->pkt->data, precv_frame->attrib.hdrlen);
-			skb_pull(precv_frame->pkt, precv_frame->attrib.iv_len);
-			skb_trim(precv_frame->pkt, precv_frame->pkt->len - precv_frame->attrib.icv_len);
-		}
 	} else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 &&
-		   (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_)) {
-		psecuritypriv->hw_decrypted = true;
-	}
+		   (psecuritypriv->busetkipkey == 1 || prxattrib->encrypt != _TKIP_))
+			psecuritypriv->hw_decrypted = true;
 
 	if (res == _FAIL) {
 		rtw_free_recvframe(return_packet, &padapter->recvpriv.free_recv_queue);
@@ -456,7 +458,7 @@ static struct recv_frame *portctrl(struct adapter *adapter,
 
 	if (auth_alg == 2) {
 		/* get ether_type */
-		ptr = ptr + pfhdr->attrib.hdrlen + LLC_HEADER_SIZE;
+		ptr = ptr + pfhdr->attrib.hdrlen + LLC_HEADER_SIZE + pfhdr->attrib.iv_len;
 		memcpy(&be_tmp, ptr, 2);
 		ether_type = ntohs(be_tmp);
 
@@ -943,7 +945,7 @@ static int validate_recv_ctrl_frame(struct adapter *padapter,
 			xmitframe_plist = xmitframe_phead->next;
 
 			if (xmitframe_phead != xmitframe_plist) {
-				pxmitframe = container_of(xmitframe_plist, struct xmit_frame, list);
+				pxmitframe = list_entry(xmitframe_plist, struct xmit_frame, list);
 
 				xmitframe_plist = xmitframe_plist->next;
 
@@ -1011,7 +1013,8 @@ static int validate_recv_mgnt_frame(struct adapter *padapter,
 
 	precv_frame = recvframe_chk_defrag(padapter, precv_frame);
 	if (precv_frame == NULL) {
-		RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, ("%s: fragment packet\n", __func__));
+		RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_,
+			 ("%s: fragment packet\n", __func__));
 		return _SUCCESS;
 	}
 
@@ -1138,8 +1141,6 @@ static int validate_recv_data_frame(struct adapter *adapter,
 	}
 
 	if (pattrib->privacy) {
-		struct sk_buff *skb = precv_frame->pkt;
-
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("validate_recv_data_frame:pattrib->privacy=%x\n", pattrib->privacy));
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n ^^^^^^^^^^^IS_MCAST(pattrib->ra(0x%02x))=%d^^^^^^^^^^^^^^^6\n", pattrib->ra[0], IS_MCAST(pattrib->ra)));
 
@@ -1148,13 +1149,6 @@ static int validate_recv_data_frame(struct adapter *adapter,
 		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("\n pattrib->encrypt=%d\n", pattrib->encrypt));
 
 		SET_ICE_IV_LEN(pattrib->iv_len, pattrib->icv_len, pattrib->encrypt);
-
-		if (pattrib->bdecrypted == 1 && pattrib->encrypt > 0) {
-			memmove(skb->data + pattrib->iv_len,
-				skb->data, pattrib->hdrlen);
-			skb_pull(skb, pattrib->iv_len);
-			skb_trim(skb, skb->len - pattrib->icv_len);
-		}
 	} else {
 		pattrib->encrypt = 0;
 		pattrib->iv_len = 0;
@@ -1274,7 +1268,6 @@ static int validate_recv_frame(struct adapter *adapter,
 	 * Hence forward the frame to the monitor anyway to preserve the order
 	 * in which frames were received.
 	 */
-
 	rtl88eu_mon_recv_hook(adapter->pmondev, precv_frame);
 
 exit:
@@ -1296,8 +1289,11 @@ static int wlanhdr_to_ethhdr(struct recv_frame *precvframe)
 	u8 *ptr = precvframe->pkt->data;
 	struct rx_pkt_attrib *pattrib = &precvframe->attrib;
 
-	psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen);
-	psnap_type = ptr+pattrib->hdrlen + SNAP_SIZE;
+	if (pattrib->encrypt)
+		skb_trim(precvframe->pkt, precvframe->pkt->len - pattrib->icv_len);
+
+	psnap = (struct ieee80211_snap_hdr *)(ptr+pattrib->hdrlen + pattrib->iv_len);
+	psnap_type = ptr+pattrib->hdrlen + pattrib->iv_len+SNAP_SIZE;
 	/* convert hdr + possible LLC headers into Ethernet header */
 	if ((!memcmp(psnap, rtw_rfc1042_header, SNAP_SIZE) &&
 	     (!memcmp(psnap_type, SNAP_ETH_TYPE_IPX, 2) == false) &&
@@ -1310,9 +1306,12 @@ static int wlanhdr_to_ethhdr(struct recv_frame *precvframe)
 		bsnaphdr = false;
 	}
 
-	rmv_len = pattrib->hdrlen + (bsnaphdr ? SNAP_SIZE : 0);
+	rmv_len = pattrib->hdrlen + pattrib->iv_len + (bsnaphdr ? SNAP_SIZE : 0);
 	len = precvframe->pkt->len - rmv_len;
 
+	RT_TRACE(_module_rtl871x_recv_c_, _drv_info_,
+		 ("\n===pattrib->hdrlen: %x,  pattrib->iv_len:%x===\n\n", pattrib->hdrlen,  pattrib->iv_len));
+
 	memcpy(&be_tmp, ptr+rmv_len, 2);
 	eth_type = ntohs(be_tmp); /* pattrib->ether_type */
 	pattrib->eth_type = eth_type;
@@ -1337,6 +1336,7 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter,
 					   struct __queue *defrag_q)
 {
 	struct list_head *plist, *phead;
+	u8 wlanhdr_offset;
 	u8	curfragnum;
 	struct recv_frame *pfhdr, *pnfhdr;
 	struct recv_frame *prframe, *pnextrframe;
@@ -1347,7 +1347,7 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter,
 
 	phead = get_list_head(defrag_q);
 	plist = phead->next;
-	pfhdr = container_of(plist, struct recv_frame, list);
+	pfhdr = list_entry(plist, struct recv_frame, list);
 	prframe = pfhdr;
 	list_del_init(&(prframe->list));
 
@@ -1367,7 +1367,7 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter,
 	plist = plist->next;
 
 	while (phead != plist) {
-		pnfhdr = container_of(plist, struct recv_frame, list);
+		pnfhdr = list_entry(plist, struct recv_frame, list);
 		pnextrframe = pnfhdr;
 
 		/* check the fragment sequence  (2nd ~n fragment frame) */
@@ -1385,7 +1385,12 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter,
 		/* copy the 2nd~n fragment frame's payload to the first fragment */
 		/* get the 2nd~last fragment frame's payload */
 
-		skb_pull(pnextrframe->pkt, pnfhdr->attrib.hdrlen);
+		wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len;
+
+		skb_pull(pnextrframe->pkt, wlanhdr_offset);
+
+		/* append  to first fragment frame's tail (if privacy frame, pull the ICV) */
+		skb_trim(prframe->pkt, prframe->pkt->len - pfhdr->attrib.icv_len);
 
 		/* memcpy */
 		memcpy(skb_tail_pointer(pfhdr->pkt), pnfhdr->pkt->data,
@@ -1393,7 +1398,7 @@ static struct recv_frame *recvframe_defrag(struct adapter *adapter,
 
 		skb_put(prframe->pkt, pnfhdr->pkt->len);
 
-		pfhdr->attrib.icv_len = 0;
+		pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len;
 		plist = plist->next;
 	}
 
@@ -1519,6 +1524,11 @@ static int amsdu_to_msdu(struct adapter *padapter, struct recv_frame *prframe)
 	nr_subframes = 0;
 	pattrib = &prframe->attrib;
 
+	skb_pull(prframe->pkt, prframe->attrib.hdrlen);
+
+	if (prframe->attrib.iv_len > 0)
+		skb_pull(prframe->pkt, prframe->attrib.iv_len);
+
 	a_len = prframe->pkt->len;
 
 	pdata = prframe->pkt->data;
@@ -1655,7 +1665,7 @@ static int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl,
 	plist = phead->next;
 
 	while (phead != plist) {
-		hdr = container_of(plist, struct recv_frame, list);
+		hdr = list_entry(plist, struct recv_frame, list);
 		pnextattrib = &hdr->attrib;
 
 		if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
@@ -1690,7 +1700,7 @@ static int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reor
 		if (list_empty(phead))
 			return true;
 
-		prhdr = container_of(plist, struct recv_frame, list);
+		prhdr = list_entry(plist, struct recv_frame, list);
 		pattrib = &prhdr->attrib;
 		preorder_ctrl->indicate_seq = pattrib->seq_num;
 	}
@@ -1698,7 +1708,7 @@ static int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reor
 	/*  Prepare indication list and indication. */
 	/*  Check if there is any packet need indicate. */
 	while (!list_empty(phead)) {
-		prhdr = container_of(plist, struct recv_frame, list);
+		prhdr = list_entry(plist, struct recv_frame, list);
 		prframe = prhdr;
 		pattrib = &prframe->attrib;
 
@@ -1829,9 +1839,10 @@ _err_exit:
 	return _FAIL;
 }
 
-void rtw_reordering_ctrl_timeout_handler(unsigned long data)
+void rtw_reordering_ctrl_timeout_handler(struct timer_list *t)
 {
-	struct recv_reorder_ctrl *preorder_ctrl = (struct recv_reorder_ctrl *)data;
+	struct recv_reorder_ctrl *preorder_ctrl = from_timer(preorder_ctrl, t,
+							   reordering_ctrl_timer);
 	struct adapter *padapter = preorder_ctrl->padapter;
 	struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
 
@@ -1887,6 +1898,24 @@ static int process_recv_indicatepkts(struct adapter *padapter,
 	return retval;
 }
 
+static int recv_func_prehandle(struct adapter *padapter,
+			       struct recv_frame *rframe)
+{
+	int ret = _SUCCESS;
+	struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
+
+	/* check the frame crtl field and decache */
+	ret = validate_recv_frame(padapter, rframe);
+	if (ret != _SUCCESS) {
+		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n"));
+		rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */
+		goto exit;
+	}
+
+exit:
+	return ret;
+}
+
 static int recv_func_posthandle(struct adapter *padapter,
 				struct recv_frame *prframe)
 {
@@ -1939,7 +1968,6 @@ static int recv_func(struct adapter *padapter, struct recv_frame *rframe)
 	struct rx_pkt_attrib *prxattrib = &rframe->attrib;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
 	struct mlme_priv *mlmepriv = &padapter->mlmepriv;
-	struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
 
 	/* check if need to handle uc_swdec_pending_queue*/
 	if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && psecuritypriv->busetkipkey) {
@@ -1951,12 +1979,9 @@ static int recv_func(struct adapter *padapter, struct recv_frame *rframe)
 		}
 	}
 
-	/* check the frame crtl field and decache */
-	ret = validate_recv_frame(padapter, rframe);
-	if (ret != _SUCCESS) {
-		RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, ("recv_func: validate_recv_frame fail! drop pkt\n"));
-		rtw_free_recvframe(rframe, pfree_recv_queue);/* free this recv_frame */
-	} else {
+	ret = recv_func_prehandle(padapter, rframe);
+
+	if (ret == _SUCCESS) {
 		/* check if need to enqueue into uc_swdec_pending_queue*/
 		if (check_fwstate(mlmepriv, WIFI_STATION_STATE) &&
 		    !IS_MCAST(prxattrib->ra) && prxattrib->encrypt > 0 &&
@@ -1999,9 +2024,10 @@ _recv_entry_drop:
 	return ret;
 }
 
-static void rtw_signal_stat_timer_hdl(unsigned long data)
+static void rtw_signal_stat_timer_hdl(struct timer_list *t)
 {
-	struct adapter *adapter = (struct adapter *)data;
+	struct adapter *adapter =
+		from_timer(adapter, t, recvpriv.signal_stat_timer);
 	struct recv_priv *recvpriv = &adapter->recvpriv;
 
 	u32 tmp_s, tmp_q;
diff --git a/drivers/staging/rtl8188eu/core/rtw_security.c b/drivers/staging/rtl8188eu/core/rtw_security.c
index b283a4903369..5b1ef229df2a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_security.c
+++ b/drivers/staging/rtl8188eu/core/rtw_security.c
@@ -1690,4 +1690,4 @@ do {									\
 	d##1 = TE0(s##1) ^ TE1(s##2) ^ TE2(s##3) ^ TE3(s##0) ^ rk[4 * i + 1]; \
 	d##2 = TE0(s##2) ^ TE1(s##3) ^ TE2(s##0) ^ TE3(s##1) ^ rk[4 * i + 2]; \
 	d##3 = TE0(s##3) ^ TE1(s##0) ^ TE2(s##1) ^ TE3(s##2) ^ rk[4 * i + 3]; \
-} while (0);
+} while (0)
diff --git a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c
index 22cf362b8528..2fd2a9e2416e 100644
--- a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c
@@ -239,8 +239,8 @@ struct sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 		}
 
 		/* init for DM */
-		psta->rssi_stat.UndecoratedSmoothedPWDB = (-1);
-		psta->rssi_stat.UndecoratedSmoothedCCK = (-1);
+		psta->rssi_stat.UndecoratedSmoothedPWDB = -1;
+		psta->rssi_stat.UndecoratedSmoothedCCK = -1;
 
 		/* init for the sequence number of received management frame */
 		psta->RxMgmtFrameSeqNum = 0xffff;
diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c
index be2f46eb9f78..e8d9858f2942 100644
--- a/drivers/staging/rtl8188eu/core/rtw_xmit.c
+++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c
@@ -93,7 +93,7 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 	pxframe = (struct xmit_frame *)pxmitpriv->pxmit_frame_buf;
 
 	for (i = 0; i < NR_XMITFRAME; i++) {
-		INIT_LIST_HEAD(&(pxframe->list));
+		INIT_LIST_HEAD(&pxframe->list);
 
 		pxframe->padapter = padapter;
 		pxframe->frame_tag = NULL_FRAMETAG;
@@ -103,7 +103,7 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 		pxframe->buf_addr = NULL;
 		pxframe->pxmitbuf = NULL;
 
-		list_add_tail(&(pxframe->list), &(pxmitpriv->free_xmit_queue.queue));
+		list_add_tail(&pxframe->list, &pxmitpriv->free_xmit_queue.queue);
 
 		pxframe++;
 	}
@@ -148,7 +148,7 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 
 		pxmitbuf->flags = XMIT_VO_QUEUE;
 
-		list_add_tail(&pxmitbuf->list, &(pxmitpriv->free_xmitbuf_queue.queue));
+		list_add_tail(&pxmitbuf->list, &pxmitpriv->free_xmitbuf_queue.queue);
 		pxmitbuf++;
 	}
 
@@ -182,7 +182,7 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 			goto exit;
 		}
 
-		list_add_tail(&pxmitbuf->list, &(pxmitpriv->free_xmit_extbuf_queue.queue));
+		list_add_tail(&pxmitbuf->list, &pxmitpriv->free_xmit_extbuf_queue.queue);
 		pxmitbuf++;
 	}
 
@@ -258,8 +258,8 @@ static void update_attrib_vcs_info(struct adapter *padapter, struct xmit_frame *
 	u32	sz;
 	struct pkt_attrib	*pattrib = &pxmitframe->attrib;
 	struct sta_info	*psta = pattrib->psta;
-	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
-	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
+	struct mlme_ext_priv	*pmlmeext = &padapter->mlmeextpriv;
+	struct mlme_ext_info	*pmlmeinfo = &pmlmeext->mlmext_info;
 
 	if (pattrib->nr_frags != 1)
 		sz = padapter->xmitpriv.frag_len;
@@ -697,7 +697,7 @@ static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitfr
 					RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("curfragnum=%d length=%d pattrib->icv_len=%d", curfragnum, length, pattrib->icv_len));
 				}
 			}
-			rtw_secgetmic(&micdata, &(mic[0]));
+			rtw_secgetmic(&micdata, &mic[0]);
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: before add mic code!!!\n"));
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: pattrib->last_txcmdsz=%d!!!\n", pattrib->last_txcmdsz));
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: mic[0]=0x%.2x , mic[1]=0x%.2x , mic[2]= 0x%.2x, mic[3]=0x%.2x\n\
@@ -705,18 +705,18 @@ static s32 xmitframe_addmic(struct adapter *padapter, struct xmit_frame *pxmitfr
 				mic[0], mic[1], mic[2], mic[3], mic[4], mic[5], mic[6], mic[7]));
 			/* add mic code  and add the mic code length in last_txcmdsz */
 
-			memcpy(payload, &(mic[0]), 8);
+			memcpy(payload, &mic[0], 8);
 			pattrib->last_txcmdsz += 8;
 
 			RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("\n ======== last pkt ========\n"));
 			payload = payload-pattrib->last_txcmdsz+8;
 			for (curfragnum = 0; curfragnum < pattrib->last_txcmdsz; curfragnum = curfragnum+8)
-					RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
-						 (" %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x ",
-						 *(payload+curfragnum), *(payload+curfragnum+1),
-						 *(payload+curfragnum+2), *(payload+curfragnum+3),
-						 *(payload+curfragnum+4), *(payload+curfragnum+5),
-						 *(payload+curfragnum+6), *(payload+curfragnum+7)));
+				RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_,
+					 (" %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x,  %.2x ",
+					 *(payload + curfragnum), *(payload + curfragnum + 1),
+					 *(payload + curfragnum + 2), *(payload + curfragnum + 3),
+					 *(payload + curfragnum + 4), *(payload + curfragnum + 5),
+					 *(payload + curfragnum + 6), *(payload + curfragnum + 7)));
 			} else {
 				RT_TRACE(_module_rtl871x_xmit_c_, _drv_err_, ("xmitframe_addmic: rtw_get_stainfo==NULL!!!\n"));
 			}
@@ -786,7 +786,7 @@ s32 rtw_make_wlanhdr(struct adapter *padapter, u8 *hdr, struct pkt_attrib *pattr
 	SetFrameSubType(fctrl, pattrib->subtype);
 
 	if (pattrib->subtype & WIFI_DATA_TYPE) {
-		if ((check_fwstate(pmlmepriv,  WIFI_STATION_STATE) == true)) {
+		if (check_fwstate(pmlmepriv,  WIFI_STATION_STATE) == true) {
 			/* to_ds = 1, fr_ds = 0; */
 			/* Data transfer to AP */
 			SetToDs(fctrl);
@@ -899,20 +899,20 @@ s32 rtw_txframes_sta_ac_pending(struct adapter *padapter, struct pkt_attrib *pat
 	switch (priority) {
 	case 1:
 	case 2:
-		ptxservq = &(psta->sta_xmitpriv.bk_q);
+		ptxservq = &psta->sta_xmitpriv.bk_q;
 		break;
 	case 4:
 	case 5:
-		ptxservq = &(psta->sta_xmitpriv.vi_q);
+		ptxservq = &psta->sta_xmitpriv.vi_q;
 		break;
 	case 6:
 	case 7:
-		ptxservq = &(psta->sta_xmitpriv.vo_q);
+		ptxservq = &psta->sta_xmitpriv.vo_q;
 		break;
 	case 0:
 	case 3:
 	default:
-		ptxservq = &(psta->sta_xmitpriv.be_q);
+		ptxservq = &psta->sta_xmitpriv.be_q;
 		break;
 	}
 
@@ -1229,7 +1229,7 @@ s32 rtw_free_xmitbuf_ext(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
 
 	list_del_init(&pxmitbuf->list);
 
-	list_add_tail(&(pxmitbuf->list), get_list_head(pfree_queue));
+	list_add_tail(&pxmitbuf->list, get_list_head(pfree_queue));
 	pxmitpriv->free_xmit_extbuf_cnt++;
 
 	spin_unlock_irqrestore(&pfree_queue->lock, irql);
@@ -1283,7 +1283,7 @@ s32 rtw_free_xmitbuf(struct xmit_priv *pxmitpriv, struct xmit_buf *pxmitbuf)
 
 		list_del_init(&pxmitbuf->list);
 
-		list_add_tail(&(pxmitbuf->list), get_list_head(pfree_xmitbuf_queue));
+		list_add_tail(&pxmitbuf->list, get_list_head(pfree_xmitbuf_queue));
 
 		pxmitpriv->free_xmitbuf_cnt++;
 		spin_unlock_irqrestore(&pfree_xmitbuf_queue->lock, irql);
@@ -1395,7 +1395,7 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 	struct	xmit_frame	*pxmitframe;
 
 
-	spin_lock_bh(&(pframequeue->lock));
+	spin_lock_bh(&pframequeue->lock);
 
 	phead = get_list_head(pframequeue);
 	plist = phead->next;
@@ -1407,7 +1407,7 @@ void rtw_free_xmitframe_queue(struct xmit_priv *pxmitpriv, struct __queue *pfram
 
 		rtw_free_xmitframe(pxmitpriv, pxmitframe);
 	}
-	spin_unlock_bh(&(pframequeue->lock));
+	spin_unlock_bh(&pframequeue->lock);
 
 }
 
@@ -1503,26 +1503,26 @@ struct tx_servq *rtw_get_sta_pending(struct adapter *padapter, struct sta_info *
 	switch (up) {
 	case 1:
 	case 2:
-		ptxservq = &(psta->sta_xmitpriv.bk_q);
+		ptxservq = &psta->sta_xmitpriv.bk_q;
 		*(ac) = 3;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BK\n"));
 		break;
 	case 4:
 	case 5:
-		ptxservq = &(psta->sta_xmitpriv.vi_q);
+		ptxservq = &psta->sta_xmitpriv.vi_q;
 		*(ac) = 1;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VI\n"));
 		break;
 	case 6:
 	case 7:
-		ptxservq = &(psta->sta_xmitpriv.vo_q);
+		ptxservq = &psta->sta_xmitpriv.vo_q;
 		*(ac) = 0;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : VO\n"));
 		break;
 	case 0:
 	case 3:
 	default:
-		ptxservq = &(psta->sta_xmitpriv.be_q);
+		ptxservq = &psta->sta_xmitpriv.be_q;
 		*(ac) = 2;
 		RT_TRACE(_module_rtl871x_xmit_c_, _drv_info_, ("rtw_get_sta_pending : BE\n"));
 	break;
@@ -1845,21 +1845,21 @@ void stop_sta_xmit(struct adapter *padapter, struct sta_info *psta)
 	pstapriv->sta_dz_bitmap |= BIT(psta->aid);
 
 	dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vo_q.sta_pending);
-	list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
+	list_del_init(&pstaxmitpriv->vo_q.tx_pending);
 
 	dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->vi_q.sta_pending);
-	list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
+	list_del_init(&pstaxmitpriv->vi_q.tx_pending);
 
 	dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->be_q.sta_pending);
-	list_del_init(&(pstaxmitpriv->be_q.tx_pending));
+	list_del_init(&pstaxmitpriv->be_q.tx_pending);
 
 	dequeue_xmitframes_to_sleeping_queue(padapter, psta, &pstaxmitpriv->bk_q.sta_pending);
-	list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
+	list_del_init(&pstaxmitpriv->bk_q.tx_pending);
 
 	/* for BC/MC Frames */
 	pstaxmitpriv = &psta_bmc->sta_xmitpriv;
 	dequeue_xmitframes_to_sleeping_queue(padapter, psta_bmc, &pstaxmitpriv->be_q.sta_pending);
-	list_del_init(&(pstaxmitpriv->be_q.tx_pending));
+	list_del_init(&pstaxmitpriv->be_q.tx_pending);
 
 	spin_unlock_bh(&pxmitpriv->lock);
 }
diff --git a/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c b/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
index 81bf4944ef44..bbb981c6bcec 100644
--- a/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
+++ b/drivers/staging/rtl8188eu/hal/Hal8188ERateAdaptive.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*++
 Copyright (c) Realtek Semiconductor Corp. All rights reserved.
 
diff --git a/drivers/staging/rtl8188eu/hal/odm.c b/drivers/staging/rtl8188eu/hal/odm.c
index ec8aae76bf40..001d6267b56e 100644
--- a/drivers/staging/rtl8188eu/hal/odm.c
+++ b/drivers/staging/rtl8188eu/hal/odm.c
@@ -382,7 +382,7 @@ void odm_DIG(struct odm_dm_struct *pDM_Odm)
 	}
 
 	/* add by Neil Chen to avoid PSD is processing */
-	if (pDM_Odm->bDMInitialGainEnable == false) {
+	if (!pDM_Odm->bDMInitialGainEnable) {
 		ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("odm_DIG() Return: PSD is Processing\n"));
 		return;
 	}
diff --git a/drivers/staging/rtl8188eu/hal/odm_HWConfig.c b/drivers/staging/rtl8188eu/hal/odm_HWConfig.c
index 0555e42a3787..5fcbe5639e99 100644
--- a/drivers/staging/rtl8188eu/hal/odm_HWConfig.c
+++ b/drivers/staging/rtl8188eu/hal/odm_HWConfig.c
@@ -109,7 +109,7 @@ static void odm_RxPhyStatus92CSeries_Parsing(struct odm_dm_struct *dm_odm,
 
 		dm_odm->PhyDbgInfo.NumQryPhyStatusCCK++;
 		/*  (1)Hardware does not provide RSSI for CCK */
-		/*  (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive) */
+		/*  (2)PWDB, Average PWDB calculated by hardware (for rate adaptive) */
 
 		cck_highpwr = dm_odm->bCckHighPower;
 
@@ -223,7 +223,7 @@ static void odm_RxPhyStatus92CSeries_Parsing(struct odm_dm_struct *dm_odm,
 			pPhyInfo->RxSNR[i] = (s32)(pPhyStaRpt->path_rxsnr[i]/2);
 			dm_odm->PhyDbgInfo.RxSNRdB[i] = (s32)(pPhyStaRpt->path_rxsnr[i]/2);
 		}
-		/*  (2)PWDB, Average PWDB cacluated by hardware (for rate adaptive) */
+		/*  (2)PWDB, Average PWDB calculated by hardware (for rate adaptive) */
 		rx_pwr_all = (((pPhyStaRpt->cck_sig_qual_ofdm_pwdb_all) >> 1) & 0x7f) - 110;
 
 		PWDB_ALL = odm_QueryRxPwrPercentage(rx_pwr_all);
diff --git a/drivers/staging/rtl8188eu/hal/phy.c b/drivers/staging/rtl8188eu/hal/phy.c
index 3039bbe44a25..20253b5b6679 100644
--- a/drivers/staging/rtl8188eu/hal/phy.c
+++ b/drivers/staging/rtl8188eu/hal/phy.c
@@ -820,9 +820,8 @@ static void save_adda_registers(struct adapter *adapt, u32 *addareg,
 {
 	u32 i;
 
-	for (i = 0; i < register_num; i++) {
+	for (i = 0; i < register_num; i++)
 		backup[i] = phy_query_bb_reg(adapt, addareg[i], bMaskDWord);
-	}
 }
 
 static void save_mac_registers(struct adapter *adapt, u32 *mac_reg,
@@ -830,9 +829,9 @@ static void save_mac_registers(struct adapter *adapt, u32 *mac_reg,
 {
 	u32 i;
 
-	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++) {
+	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++)
 		backup[i] = usb_read8(adapt, mac_reg[i]);
-	}
+
 	backup[i] = usb_read32(adapt, mac_reg[i]);
 }
 
@@ -850,9 +849,9 @@ static void reload_mac_registers(struct adapter *adapt,
 {
 	u32 i;
 
-	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++) {
+	for (i = 0; i < (IQK_MAC_REG_NUM - 1); i++)
 		usb_write8(adapt, mac_reg[i], (u8)backup[i]);
-	}
+
 	usb_write32(adapt, mac_reg[i], backup[i]);
 }
 
@@ -880,9 +879,9 @@ static void mac_setting_calibration(struct adapter *adapt, u32 *mac_reg, u32 *ba
 
 	usb_write8(adapt, mac_reg[i], 0x3F);
 
-	for (i = 1; i < (IQK_MAC_REG_NUM - 1); i++) {
+	for (i = 1; i < (IQK_MAC_REG_NUM - 1); i++)
 		usb_write8(adapt, mac_reg[i], (u8)(backup[i]&(~BIT(3))));
-	}
+
 	usb_write8(adapt, mac_reg[i], (u8)(backup[i]&(~BIT(5))));
 }
 
diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c
index 674ac5396d00..17967c944946 100644
--- a/drivers/staging/rtl8188eu/hal/usb_halinit.c
+++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c
@@ -1745,6 +1745,7 @@ void rtw_hal_get_hwreg(struct adapter *Adapter, u8 variable, u8 *val)
 	switch (variable) {
 	case HW_VAR_BASIC_RATE:
 		*((u16 *)(val)) = Adapter->HalData->BasicRateSet;
+		/* fall through */
 	case HW_VAR_TXPAUSE:
 		val[0] = usb_read8(Adapter, REG_TXPAUSE);
 		break;
diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
index 550ad62e7064..4e5d7fc6de07 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
@@ -75,7 +75,8 @@ enum rf_radio_path {
 #define CHANNEL_MAX_NUMBER		14	/*  14 is the max chnl number */
 #define MAX_CHNL_GROUP_24G		6	/*  ch1~2, ch3~5, ch6~8,
 						 *ch9~11, ch12~13, CH 14
-						 * total three groups */
+						 * total three groups
+						 */
 #define CHANNEL_GROUP_MAX_88E		6
 
 enum wireless_mode {
@@ -116,35 +117,45 @@ struct bb_reg_def {
 				/*	0x80c~0x80f [4 bytes] */
 	u32 rfHSSIPara1;	/*  wire parameter control1 : */
 				/*	0x820~0x823,0x828~0x82b,
-				 *	0x830~0x833, 0x838~0x83b [16 bytes] */
+				 *	0x830~0x833, 0x838~0x83b [16 bytes]
+				 */
 	u32 rfHSSIPara2;	/*  wire parameter control2 : */
 				/*	0x824~0x827,0x82c~0x82f, 0x834~0x837,
-				 *	0x83c~0x83f [16 bytes] */
+				 *	0x83c~0x83f [16 bytes]
+				 */
 	u32 rfSwitchControl;	/* Tx Rx antenna control : */
 				/*	0x858~0x85f [16 bytes] */
 	u32 rfAGCControl1;	/* AGC parameter control1 : */
 				/*	0xc50~0xc53,0xc58~0xc5b, 0xc60~0xc63,
-				 * 0xc68~0xc6b [16 bytes] */
+				 * 0xc68~0xc6b [16 bytes]
+				 */
 	u32 rfAGCControl2;	/* AGC parameter control2 : */
 				/*	0xc54~0xc57,0xc5c~0xc5f, 0xc64~0xc67,
-				 *	0xc6c~0xc6f [16 bytes] */
+				 *	0xc6c~0xc6f [16 bytes]
+				 */
 	u32 rfRxIQImbalance;	/* OFDM Rx IQ imbalance matrix : */
 				/*	0xc14~0xc17,0xc1c~0xc1f, 0xc24~0xc27,
-				 *	0xc2c~0xc2f [16 bytes] */
+				 *	0xc2c~0xc2f [16 bytes]
+				 */
 	u32 rfRxAFE;		/* Rx IQ DC ofset and Rx digital filter,
-				 * Rx DC notch filter : */
+				 * Rx DC notch filter :
+				 */
 				/*	0xc10~0xc13,0xc18~0xc1b, 0xc20~0xc23,
-				 *	0xc28~0xc2b [16 bytes] */
+				 *	0xc28~0xc2b [16 bytes]
+				 */
 	u32 rfTxIQImbalance;	/* OFDM Tx IQ imbalance matrix */
 				/*	0xc80~0xc83,0xc88~0xc8b, 0xc90~0xc93,
-				 *	 0xc98~0xc9b [16 bytes] */
+				 *	 0xc98~0xc9b [16 bytes]
+				 */
 	u32 rfTxAFE;		/* Tx IQ DC Offset and Tx DFIR type */
 				/*	0xc84~0xc87,0xc8c~0xc8f, 0xc94~0xc97,
-				 *	0xc9c~0xc9f [16 bytes] */
+				 *	0xc9c~0xc9f [16 bytes]
+				 */
 	u32 rfLSSIReadBack;	/* LSSI RF readback data SI mode */
 				/*	0x8a0~0x8af [16 bytes] */
 	u32 rfLSSIReadBackPi;	/* LSSI RF readback data PI mode 0x8b8-8bc for
-				 * Path A and B */
+				 * Path A and B
+				 */
 };
 
 /*------------------------------Define structure----------------------------*/
diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h
index 04159a9f90d3..8cbba85e1587 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h
@@ -136,7 +136,8 @@
 #define	rCCK0_CCA			0xa08
 
 /* AGC default value, saturation level Antenna Diversity, RX AGC, LNA Threshold,
- * RX LNA Threshold useless now. Not the same as 90 series */
+ * RX LNA Threshold useless now. Not the same as 90 series
+ */
 #define	rCCK0_RxAGC1			0xa0c
 #define	rCCK0_RxAGC2			0xa10	/* AGC & DAGC */
 
diff --git a/drivers/staging/rtl8188eu/include/Hal8188ERateAdaptive.h b/drivers/staging/rtl8188eu/include/Hal8188ERateAdaptive.h
index 21996a1173ef..96ebda93b4ee 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188ERateAdaptive.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188ERateAdaptive.h
@@ -1,19 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INC_RA_H
 #define __INC_RA_H
-/*++
-Copyright (c) Realtek Semiconductor Corp. All rights reserved.
-
-Module Name:
-	RateAdaptive.h
-
-Abstract:
-	Prototype of RA and related data structure.
-
-Major Change History:
-	When       Who               What
-	---------- ---------------   -------------------------------
-	2011-08-12 Page            Create.
---*/
+/*
+ * Copyright (c) Realtek Semiconductor Corp. All rights reserved.
+ *
+ * Module Name:
+ *	RateAdaptive.h
+ *
+ * Abstract:
+ *	Prototype of RA and related data structure.
+ *
+ * Major Change History:
+ *	When       Who               What
+ *	---------- ---------------   -------------------------------
+ *	2011-08-12 Page            Create.
+ */
 
 /*  Rate adaptive define */
 #define	PERENTRY	23
diff --git a/drivers/staging/rtl8188eu/include/basic_types.h b/drivers/staging/rtl8188eu/include/basic_types.h
index 69c4d49f43ab..73cc86705cf3 100644
--- a/drivers/staging/rtl8188eu/include/basic_types.h
+++ b/drivers/staging/rtl8188eu/include/basic_types.h
@@ -1,4 +1,4 @@
-/******************************************************************************
+	/******************************************************************************
  *
  * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
  *
@@ -20,14 +20,15 @@
 
 /* port from fw */
 /*  TODO: Macros Below are Sync from SD7-Driver. It is necessary
- * to check correctness */
+ * to check correctness
+ */
 
 /*
  *	Call endian free function when
  *		1. Read/write packet content.
  *		2. Before write integer to IO.
  *		3. After read integer from IO.
-*/
+ */
 
 /* Convert little data endian to host ordering */
 #define EF1BYTE(_val)		\
@@ -74,9 +75,10 @@
 #define LE_P1BYTE_TO_HOST_1BYTE(__pstart) \
 	(EF1BYTE(*((u8 *)(__pstart))))
 
-/*Description:
-Translate subfield (continuous bits in little-endian) of 4-byte
-value to host byte ordering.*/
+/* Description:
+ * Translate subfield (continuous bits in little-endian) of 4-byte
+ * value to host byte ordering.
+ */
 #define LE_BITS_TO_4BYTE(__pstart, __bitoffset, __bitlen) \
 	( \
 		(LE_P4BYTE_TO_HOST_4BYTE(__pstart) >> (__bitoffset))  & \
diff --git a/drivers/staging/rtl8188eu/include/drv_types.h b/drivers/staging/rtl8188eu/include/drv_types.h
index c3517c0903ca..2734565ce802 100644
--- a/drivers/staging/rtl8188eu/include/drv_types.h
+++ b/drivers/staging/rtl8188eu/include/drv_types.h
@@ -128,7 +128,8 @@ struct dvobj_priv {
 static inline struct device *dvobj_to_dev(struct dvobj_priv *dvobj)
 {
 	/* todo: get interface type from dvobj and the return
-	 * the dev accordingly */
+	 * the dev accordingly
+	 */
 	return &dvobj->pusbintf->dev;
 };
 
diff --git a/drivers/staging/rtl8188eu/include/hal_intf.h b/drivers/staging/rtl8188eu/include/hal_intf.h
index dfdbd0254886..da4ee1561c36 100644
--- a/drivers/staging/rtl8188eu/include/hal_intf.h
+++ b/drivers/staging/rtl8188eu/include/hal_intf.h
@@ -96,9 +96,11 @@ enum hw_variables {
 	HW_VAR_FIFO_CLEARN_UP,
 	HW_VAR_CHECK_TXBUF,
 	HW_VAR_APFM_ON_MAC, /* Auto FSM to Turn On, include clock, isolation,
-			     * power control for MAC only */
+			     * power control for MAC only
+			     */
 	/*  The valid upper nav range for the HW updating, if the true value is
-	 *  larger than the upper range, the HW won't update it. */
+	 *  larger than the upper range, the HW won't update it.
+	 */
 	/*  Unit in microsecond. 0 means disable this function. */
 	HW_VAR_NAV_UPPER,
 	HW_VAR_RPT_TIMER_SETTING,
diff --git a/drivers/staging/rtl8188eu/include/ieee80211.h b/drivers/staging/rtl8188eu/include/ieee80211.h
index 284db7d00f50..9f480ccec531 100644
--- a/drivers/staging/rtl8188eu/include/ieee80211.h
+++ b/drivers/staging/rtl8188eu/include/ieee80211.h
@@ -202,9 +202,9 @@ enum NETWORK_TYPE {
 #define IsSupportedTxCCK(NetType)				\
 	((NetType) & (WIRELESS_11B) ? true : false)
 #define IsSupportedTxOFDM(NetType)				\
-	((NetType) & (WIRELESS_11G|WIRELESS_11A) ? true : false)
+	((NetType) & (WIRELESS_11G | WIRELESS_11A) ? true : false)
 #define IsSupportedTxMCS(NetType)				\
-	((NetType) & (WIRELESS_11_24N|WIRELESS_11_5N) ? true : false)
+	((NetType) & (WIRELESS_11_24N | WIRELESS_11_5N) ? true : false)
 
 
 struct ieee_param {
@@ -276,12 +276,13 @@ struct sta_data {
 
 #define IEEE80211_DATA_LEN		2304
 /* Maximum size for the MA-UNITDATA primitive, 802.11 standard section
-   6.2.1.1.2.
+ * 6.2.1.1.2.
 
-   The figure in section 7.1.2 suggests a body size of up to 2312
-   bytes is allowed, which is a bit confusing, I suspect this
-   represents the 2304 bytes of real data, plus a possible 8 bytes of
-   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */
+ * The figure in section 7.1.2 suggests a body size of up to 2312
+ * bytes is allowed, which is a bit confusing, I suspect this
+ * represents the 2304 bytes of real data, plus a possible 8 bytes of
+ * WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro)
+ */
 
 
 #define IEEE80211_HLEN			30
@@ -358,11 +359,11 @@ struct ieee80211_snap_hdr {
 #define IEEE80211_DATA_HDR3_LEN 24
 #define IEEE80211_DATA_HDR4_LEN 30
 
-#define IEEE80211_CCK_MODULATION    (1<<0)
-#define IEEE80211_OFDM_MODULATION   (1<<1)
+#define IEEE80211_CCK_MODULATION	BIT(0)
+#define IEEE80211_OFDM_MODULATION	BIT(1)
 
-#define IEEE80211_24GHZ_BAND     (1<<0)
-#define IEEE80211_52GHZ_BAND     (1<<1)
+#define IEEE80211_24GHZ_BAND	BIT(0)
+#define IEEE80211_52GHZ_BAND	BIT(1)
 
 #define IEEE80211_CCK_RATE_LEN			4
 #define IEEE80211_NUM_OFDM_RATESLEN	8
@@ -383,18 +384,18 @@ struct ieee80211_snap_hdr {
 #define IEEE80211_OFDM_RATE_54MB		0x6C
 #define IEEE80211_BASIC_RATE_MASK		0x80
 
-#define IEEE80211_CCK_RATE_1MB_MASK		(1<<0)
-#define IEEE80211_CCK_RATE_2MB_MASK		(1<<1)
-#define IEEE80211_CCK_RATE_5MB_MASK		(1<<2)
-#define IEEE80211_CCK_RATE_11MB_MASK		(1<<3)
-#define IEEE80211_OFDM_RATE_6MB_MASK		(1<<4)
-#define IEEE80211_OFDM_RATE_9MB_MASK		(1<<5)
-#define IEEE80211_OFDM_RATE_12MB_MASK		(1<<6)
-#define IEEE80211_OFDM_RATE_18MB_MASK		(1<<7)
-#define IEEE80211_OFDM_RATE_24MB_MASK		(1<<8)
-#define IEEE80211_OFDM_RATE_36MB_MASK		(1<<9)
-#define IEEE80211_OFDM_RATE_48MB_MASK		(1<<10)
-#define IEEE80211_OFDM_RATE_54MB_MASK		(1<<11)
+#define IEEE80211_CCK_RATE_1MB_MASK		BIT(0)
+#define IEEE80211_CCK_RATE_2MB_MASK		BIT(1)
+#define IEEE80211_CCK_RATE_5MB_MASK		BIT(2)
+#define IEEE80211_CCK_RATE_11MB_MASK		BIT(3)
+#define IEEE80211_OFDM_RATE_6MB_MASK		BIT(4)
+#define IEEE80211_OFDM_RATE_9MB_MASK		BIT(5)
+#define IEEE80211_OFDM_RATE_12MB_MASK		BIT(6)
+#define IEEE80211_OFDM_RATE_18MB_MASK		BIT(7)
+#define IEEE80211_OFDM_RATE_24MB_MASK		BIT(8)
+#define IEEE80211_OFDM_RATE_36MB_MASK		BIT(9)
+#define IEEE80211_OFDM_RATE_48MB_MASK		BIT(10)
+#define IEEE80211_OFDM_RATE_54MB_MASK		BIT(11)
 
 #define IEEE80211_CCK_RATES_MASK		0x0000000F
 #define IEEE80211_CCK_BASIC_RATES_MASK	(IEEE80211_CCK_RATE_1MB_MASK | \
@@ -423,18 +424,19 @@ struct ieee80211_snap_hdr {
 /* IEEE 802.11 requires that STA supports concurrent reception of at least
  * three fragmented frames. This define can be increased to support more
  * concurrent frames, but it should be noted that each entry can consume about
- * 2 kB of RAM and increasing cache size will slow down frame reassembly. */
+ * 2 kB of RAM and increasing cache size will slow down frame reassembly.
+ */
 #define IEEE80211_FRAG_CACHE_LEN 4
 
-#define SEC_KEY_1	(1<<0)
-#define SEC_KEY_2	(1<<1)
-#define SEC_KEY_3	(1<<2)
-#define SEC_KEY_4	(1<<3)
-#define SEC_ACTIVE_KEY  (1<<4)
-#define SEC_AUTH_MODE   (1<<5)
-#define SEC_UNICAST_GROUP (1<<6)
-#define SEC_LEVEL	(1<<7)
-#define SEC_ENABLED     (1<<8)
+#define SEC_KEY_1	BIT(0)
+#define SEC_KEY_2	BIT(1)
+#define SEC_KEY_3	BIT(2)
+#define SEC_KEY_4	BIT(3)
+#define SEC_ACTIVE_KEY  BIT(4)
+#define SEC_AUTH_MODE   BIT(5)
+#define SEC_UNICAST_GROUP BIT(6)
+#define SEC_LEVEL	BIT(7)
+#define SEC_ENABLED     BIT(8)
 
 #define SEC_LEVEL_0      0 /* None */
 #define SEC_LEVEL_1      1 /* WEP 40 and 104 bit */
@@ -451,7 +453,8 @@ struct ieee80211_snap_hdr {
 /* MAX_RATES_LENGTH needs to be 12.  The spec says 8, and many APs
  * only use 8, and then use extended rates for the remaining supported
  * rates.  Other APs, however, stick all of their supported rates on the
- * main rates information element... */
+ * main rates information element...
+ */
 #define MAX_RATES_LENGTH		((u8)12)
 #define MAX_RATES_EX_LENGTH		((u8)16)
 #define MAX_NETWORK_COUNT		128
@@ -467,17 +470,17 @@ struct ieee80211_snap_hdr {
 #define MAX_P2P_IE_LEN (256)
 #define MAX_WFD_IE_LEN (128)
 
-#define NETWORK_EMPTY_ESSID (1<<0)
-#define NETWORK_HAS_OFDM    (1<<1)
-#define NETWORK_HAS_CCK     (1<<2)
+#define NETWORK_EMPTY_ESSID	BIT(0)
+#define NETWORK_HAS_OFDM	BIT(1)
+#define NETWORK_HAS_CCK		BIT(2)
 
 #define IW_ESSID_MAX_SIZE 32
 /*
-join_res:
--1: authentication fail
--2: association fail
-> 0: TID
-*/
+ * join_res:
+ * -1: authentication fail
+ * -2: association fail
+ * > 0: TID
+ */
 
 enum ieee80211_state {
 	/* the card is not linked at all */
@@ -531,15 +534,15 @@ static inline int is_broadcast_mac_addr(const u8 *addr)
 	       (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff);
 }
 
-#define CFG_IEEE80211_RESERVE_FCS (1<<0)
-#define CFG_IEEE80211_COMPUTE_FCS (1<<1)
+#define CFG_IEEE80211_RESERVE_FCS	BIT(0)
+#define CFG_IEEE80211_COMPUTE_FCS	BIT(1)
 
 #define MAXTID	16
 
-#define IEEE_A	    (1<<0)
-#define IEEE_B	    (1<<1)
-#define IEEE_G	    (1<<2)
-#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
+#define IEEE_A	    BIT(0)
+#define IEEE_B	    BIT(1)
+#define IEEE_G	    BIT(2)
+#define IEEE_MODE_MASK    (IEEE_A | IEEE_B | IEEE_G)
 
 /* Action category code */
 enum rtw_ieee80211_category {
@@ -615,7 +618,8 @@ enum rtw_ieee80211_back_parties {
 };
 
 #define OUI_MICROSOFT 0x0050f2 /* Microsoft (also used in Wi-Fi specs)
-				* 00:50:F2 */
+				* 00:50:F2
+				*/
 #define WME_OUI_TYPE 2
 #define WME_OUI_SUBTYPE_INFORMATION_ELEMENT 0
 #define WME_OUI_SUBTYPE_PARAMETER_ELEMENT 1
@@ -655,12 +659,12 @@ enum rtw_ieee80211_back_parties {
  *      is not permitted.
  */
 enum rtw_ieee80211_channel_flags {
-	RTW_IEEE80211_CHAN_DISABLED	 = 1<<0,
-	RTW_IEEE80211_CHAN_PASSIVE_SCAN     = 1<<1,
-	RTW_IEEE80211_CHAN_NO_IBSS	  = 1<<2,
-	RTW_IEEE80211_CHAN_RADAR	    = 1<<3,
-	RTW_IEEE80211_CHAN_NO_HT40PLUS      = 1<<4,
-	RTW_IEEE80211_CHAN_NO_HT40MINUS     = 1<<5,
+	RTW_IEEE80211_CHAN_DISABLED	 = BIT(0),
+	RTW_IEEE80211_CHAN_PASSIVE_SCAN     = BIT(1),
+	RTW_IEEE80211_CHAN_NO_IBSS	  = BIT(2),
+	RTW_IEEE80211_CHAN_RADAR	    = BIT(3),
+	RTW_IEEE80211_CHAN_NO_HT40PLUS      = BIT(4),
+	RTW_IEEE80211_CHAN_NO_HT40MINUS     = BIT(5),
 };
 
 #define RTW_IEEE80211_CHAN_NO_HT40 \
diff --git a/drivers/staging/rtl8188eu/include/odm.h b/drivers/staging/rtl8188eu/include/odm.h
index 4fb3bb07ceaa..95426b7c6dbf 100644
--- a/drivers/staging/rtl8188eu/include/odm.h
+++ b/drivers/staging/rtl8188eu/include/odm.h
@@ -36,7 +36,8 @@
 /*  Mainly, it just retains last scan result and scan again. */
 /*  After that, it compares the scan result to see which one gets better
  *  RSSI. It selects antenna with better receiving power and returns better
- *  scan result. */
+ *  scan result.
+ */
 
 #define	TP_MODE			0
 #define	RSSI_MODE		1
@@ -173,10 +174,12 @@ struct rx_hpc {
 
 /*  This indicates two different steps. */
 /*  In SWAW_STEP_PEAK, driver needs to switch antenna and listen to
- *  the signal on the air. */
+ *  the signal on the air.
+ */
 /*  In SWAW_STEP_DETERMINE, driver just compares the signal captured in
  *  SWAW_STEP_PEAK with original RSSI to determine if it is necessary to
- *  switch antenna. */
+ *  switch antenna.
+ */
 
 #define SWAW_STEP_PEAK		0
 #define SWAW_STEP_DETERMINE	1
@@ -265,7 +268,8 @@ struct odm_phy_status_info {
 	s8	RxPower; /*  in dBm Translate from PWdB */
 	s8	RecvSignalPower;/*  Real power in dBm for this packet, no
 				 * beautification and aggregation. Keep this raw
-				 * info to be used for the other procedures. */
+				 * info to be used for the other procedures.
+				 */
 	u8	BTRxRSSIPercentage;
 	u8	SignalStrength; /*  in 0-100 index. */
 	u8	RxPwr[MAX_PATH_NUM_92CS];/* per-path's pwdb */
@@ -478,7 +482,7 @@ enum odm_operation_mode {
 
 /*  ODM_CMNINFO_WM_MODE */
 enum odm_wireless_mode {
-	ODM_WM_UNKNOW	= 0x0,
+	ODM_WM_UNKNOWN	= 0x0,
 	ODM_WM_B	= BIT(0),
 	ODM_WM_G	= BIT(1),
 	ODM_WM_A	= BIT(2),
@@ -509,7 +513,7 @@ enum odm_security {
 	ODM_SEC_RESERVE		= 3,
 	ODM_SEC_AESCCMP		= 4,
 	ODM_SEC_WEP104		= 5,
-	ODM_WEP_WPA_MIXED   	= 6, /*  WEP + WPA */
+	ODM_WEP_WPA_MIXED	= 6, /*  WEP + WPA */
 	ODM_SEC_SMS4		= 7,
 };
 
@@ -567,7 +571,8 @@ struct odm_ra_info {
 	u8 PTPreRssi;	/*  if RSSI change 5% do PT */
 	u8 PTModeSS;	/*  decide whitch rate should do PT */
 	u8 RAstage;	/*  StageRA, decide how many times RA will be done
-			 * between PT */
+			 * between PT
+			 */
 	u8 PTSmoothFactor;
 };
 
@@ -587,12 +592,14 @@ struct odm_rf_cal {
 	u8	TXPowercount;
 	bool	bTXPowerTracking;
 	u8	TxPowerTrackControl; /* for mp mode, turn off txpwrtracking
-				      * as default */
+				      * as default
+				      */
 	u8	TM_Trigger;
 	u8	InternalPA5G[2];	/* pathA / pathB */
 
 	u8	ThermalMeter[2];    /* ThermalMeter, index 0 for RFIC0,
-				     * and 1 for RFIC1 */
+				     * and 1 for RFIC1
+				     */
 	u8	ThermalValue;
 	u8	ThermalValue_LCK;
 	u8	ThermalValue_IQK;
@@ -688,7 +695,7 @@ enum ant_div_type {
 
 /* Copy from SD4 defined structure. We use to support PHY DM integration. */
 struct odm_dm_struct {
-	/* 	Add for different team use temporarily */
+	/*	Add for different team use temporarily */
 	struct adapter *Adapter;	/*  For CE/NIC team */
 	struct rtl8192cd_priv *priv;	/*  For AP/ADSL team */
 	/*  WHen you use above pointers, they must be initialized. */
@@ -714,7 +721,8 @@ struct odm_dm_struct {
 	/*  ODM PCIE/USB/SDIO/GSPI = 0/1/2/3 */
 	u8	SupportInterface;
 	/*  ODM composite or independent. Bit oriented/ 92C+92D+ .... or any
-	 *  other type = 1/2/3/... */
+	 *  other type = 1/2/3/...
+	 */
 	u32	SupportICType;
 	/*  Cut Version TestChip/A-cut/B-cut... = 0/1/2/3/... */
 	u8	CutVersion;
@@ -788,19 +796,21 @@ struct odm_dm_struct {
 	bool	bBtHsOperation;	/*  BT HS mode is under progress */
 	u8	btHsDigVal;	/*  use BT rssi to decide the DIG value */
 	bool	bBtDisableEdcaTurbo;/* Under some condition, don't enable the
-				     * EDCA Turbo */
+				     * EDCA Turbo
+				     */
 	bool	bBtBusy;			/*  BT is busy. */
 /* CALL BY VALUE------------- */
 
 	/* 2 Define STA info. */
 	/*  _ODM_STA_INFO */
-	/*  For MP, we need to reduce one array pointer for default port.?? */
+	/*  For MP, we need to reduce one array pointer for default port.??*/
 	struct sta_info *pODM_StaInfo[ODM_ASSOCIATE_ENTRY_NUM];
 
 	u16	CurrminRptTime;
 	struct odm_ra_info RAInfo[ODM_ASSOCIATE_ENTRY_NUM]; /* Use MacID as
-			* array index. STA MacID=0,
-			* VWiFi Client MacID={1, ODM_ASSOCIATE_ENTRY_NUM-1} */
+							     * array index. STA MacID=0,
+							     * VWiFi Client MacID={1, ODM_ASSOCIATE_ENTRY_NUM-1}
+							     */
 	/*  */
 	/*  2012/02/14 MH Add to share 88E ra with other SW team. */
 	/*  We need to colelct all support abilit to a proper area. */
@@ -1029,9 +1039,11 @@ extern	u8 CCKSwingTable_Ch14[CCK_TABLE_SIZE][8];
 /*  20100514 Joseph: Add definition for antenna switching test after link. */
 /*  This indicates two different the steps. */
 /*  In SWAW_STEP_PEAK, driver needs to switch antenna and listen to the
- *  signal on the air. */
+ *  signal on the air.
+ */
 /*  In SWAW_STEP_DETERMINE, driver just compares the signal captured in
- *  SWAW_STEP_PEAK */
+ *  SWAW_STEP_PEAK
+ */
 /*  with original RSSI to determine if it is necessary to switch antenna. */
 #define SWAW_STEP_PEAK		0
 #define SWAW_STEP_DETERMINE	1
diff --git a/drivers/staging/rtl8188eu/include/osdep_intf.h b/drivers/staging/rtl8188eu/include/osdep_intf.h
index 97d3d8504184..f1fb3d511a45 100644
--- a/drivers/staging/rtl8188eu/include/osdep_intf.h
+++ b/drivers/staging/rtl8188eu/include/osdep_intf.h
@@ -26,7 +26,7 @@ u8 rtw_init_drv_sw(struct adapter *padapter);
 u8 rtw_free_drv_sw(struct adapter *padapter);
 u8 rtw_reset_drv_sw(struct adapter *padapter);
 
-void rtw_stop_drv_threads (struct adapter *padapter);
+void rtw_stop_drv_threads(struct adapter *padapter);
 void rtw_cancel_all_timer(struct adapter *padapter);
 
 int rtw_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
diff --git a/drivers/staging/rtl8188eu/include/phy.h b/drivers/staging/rtl8188eu/include/phy.h
index cd387e998574..e99ac3910787 100644
--- a/drivers/staging/rtl8188eu/include/phy.h
+++ b/drivers/staging/rtl8188eu/include/phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <odm.h>
 
 #define IQK_DELAY_TIME_88E	    10
diff --git a/drivers/staging/rtl8188eu/include/pwrseq.h b/drivers/staging/rtl8188eu/include/pwrseq.h
index addf90b60ce9..bd77a50c0d41 100644
--- a/drivers/staging/rtl8188eu/include/pwrseq.h
+++ b/drivers/staging/rtl8188eu/include/pwrseq.h
@@ -20,28 +20,28 @@
 #include "pwrseqcmd.h"
 
 /*
-	Check document WM-20110607-Paul-RTL8188E_Power_Architecture-R02.vsd
-	There are 6 HW Power States:
-	0: POFF--Power Off
-	1: PDN--Power Down
-	2: CARDEMU--Card Emulation
-	3: ACT--Active Mode
-	4: LPS--Low Power State
-	5: SUS--Suspend
-
-	The transition from different states are defined below
-	TRANS_CARDEMU_TO_ACT
-	TRANS_ACT_TO_CARDEMU
-	TRANS_CARDEMU_TO_SUS
-	TRANS_SUS_TO_CARDEMU
-	TRANS_CARDEMU_TO_PDN
-	TRANS_ACT_TO_LPS
-	TRANS_LPS_TO_ACT
-
-	TRANS_END
-
-    PWR SEQ Version: rtl8188E_PwrSeq_V09.h
-*/
+ *	Check document WM-20110607-Paul-RTL8188E_Power_Architecture-R02.vsd
+ *	There are 6 HW Power States:
+ *	0: POFF--Power Off
+ *	1: PDN--Power Down
+ *	2: CARDEMU--Card Emulation
+ *	3: ACT--Active Mode
+ *	4: LPS--Low Power State
+ *	5: SUS--Suspend
+ *
+ *	The transition from different states are defined below
+ *	TRANS_CARDEMU_TO_ACT
+ *	TRANS_ACT_TO_CARDEMU
+ *	TRANS_CARDEMU_TO_SUS
+ *	TRANS_SUS_TO_CARDEMU
+ *	TRANS_CARDEMU_TO_PDN
+ *	TRANS_ACT_TO_LPS
+ *	TRANS_LPS_TO_ACT
+ *
+ *	TRANS_END
+ *
+ *   PWR SEQ Version: rtl8188E_PwrSeq_V09.h
+ */
 #define RTL8188E_TRANS_CARDEMU_TO_ACT_STEPS	10
 #define RTL8188E_TRANS_ACT_TO_CARDEMU_STEPS	10
 #define RTL8188E_TRANS_CARDEMU_TO_SUS_STEPS	10
diff --git a/drivers/staging/rtl8188eu/include/rf.h b/drivers/staging/rtl8188eu/include/rf.h
index 98a5551f5ae7..ed3241c020ad 100644
--- a/drivers/staging/rtl8188eu/include/rf.h
+++ b/drivers/staging/rtl8188eu/include/rf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define RF6052_MAX_TX_PWR	0x3F
 #define RF6052_MAX_REG		0x3F
 
diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
index 9330361da4ad..b4b5e217105a 100644
--- a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
+++ b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
@@ -42,7 +42,7 @@
 #define RTL8188E_PHY_REG_PG			"rtl8188E\\PHY_REG_PG.txt"
 #define RTL8188E_PHY_REG_MP			"rtl8188E\\PHY_REG_MP.txt"
 
-/* 		RTL8188E Power Configuration CMDs for USB/SDIO interfaces */
+/* RTL8188E Power Configuration CMDs for USB/SDIO interfaces */
 #define Rtl8188E_NIC_PWR_ON_FLOW		rtl8188E_power_on_flow
 #define Rtl8188E_NIC_RF_OFF_FLOW		rtl8188E_radio_off_flow
 #define Rtl8188E_NIC_DISABLE_FLOW		rtl8188E_card_disable_flow
@@ -81,7 +81,8 @@ enum usb_rx_agg_mode {
 
 #define MAX_RX_DMA_BUFFER_SIZE_88E				\
       0x2400 /* 9k for 88E nornal chip , MaxRxBuff=10k-max(TxReportSize(64*8),
-	      * WOLPattern(16*24)) */
+	      * WOLPattern(16*24))
+	      */
 
 #define MAX_TX_REPORT_BUFFER_SIZE		0x0400 /*  1k */
 
@@ -94,11 +95,13 @@ enum usb_rx_agg_mode {
 #define TX_SELE_NQ			BIT(2)		/*  Normal Queue */
 
 /*  Note: We will divide number of page equally for each queue other
- *  than public queue! */
+ *  than public queue!
+ */
 /*  22k = 22528 bytes = 176 pages (@page =  128 bytes) */
 /*  must reserved about 7 pages for LPS =>  176-7 = 169 (0xA9) */
 /*  2*BCN / 1*ps-poll / 1*null-data /1*prob_rsp /1*QOS null-data /1*BT QOS
- *  null-data */
+ *  null-data
+ */
 
 #define TX_TOTAL_PAGE_NUMBER_88E		0xA9/*   169 (21632=> 21k) */
 
@@ -110,7 +113,7 @@ enum usb_rx_agg_mode {
 #define WMM_NORMAL_TX_PAGE_BOUNDARY_88E			\
 	(WMM_NORMAL_TX_TOTAL_PAGE_NUMBER + 1) /* 0xA9 */
 
-/* 	Chip specific */
+/* Chip specific */
 #define CHIP_BONDING_IDENTIFIER(_value)	(((_value)>>22)&0x3)
 #define CHIP_BONDING_92C_1T2R	0x1
 #define CHIP_BONDING_88C_USB_MCARD	0x2
@@ -118,7 +121,7 @@ enum usb_rx_agg_mode {
 #include "HalVerDef.h"
 #include "hal_com.h"
 
-/* 	Channel Plan */
+/* Channel Plan */
 enum ChannelPlan {
 	CHPL_FCC	= 0,
 	CHPL_IC		= 1,
@@ -168,7 +171,8 @@ struct txpowerinfo24g {
 #define		AVAILABLE_EFUSE_ADDR_88E(addr)			\
 	(addr < EFUSE_REAL_CONTENT_LEN_88E)
 /*  To prevent out of boundary programming case, leave 1byte and program
- *  full section */
+ *  full section
+ */
 /*  9bytes + 1byt + 5bytes and pre 1byte. */
 /*  For worst case: */
 /*  | 2byte|----8bytes----|1byte|--7bytes--| 92D */
@@ -176,7 +180,7 @@ struct txpowerinfo24g {
 #define		EFUSE_OOB_PROTECT_BYTES_88E	18
 #define		EFUSE_PROTECT_BYTES_BANK_88E	16
 
-/* 			EFUSE for BT definition */
+/* EFUSE for BT definition */
 #define EFUSE_BT_REAL_CONTENT_LEN	1536	/*  512*3 */
 #define EFUSE_BT_MAP_LEN		1024	/*  1k bytes */
 #define EFUSE_BT_MAX_SECTION		128	/*  1024/8 */
@@ -293,7 +297,8 @@ struct hal_data_8188e {
 	u8	bDumpRxPkt;/* for debug */
 	u8	bDumpTxPkt;/* for debug */
 	u8	FwRsvdPageStartOffset; /* Reserve page start offset except
-					*  beacon in TxQ. */
+					*  beacon in TxQ.
+					*/
 
 	/*  2010/08/09 MH Add CU power down mode. */
 	bool		pwrdown;
@@ -307,7 +312,8 @@ struct hal_data_8188e {
 	u16	EfuseUsedBytes;
 
 	/*  Auto FSM to Turn On, include clock, isolation, power control
-	 *  for MAC only */
+	 *  for MAC only
+	 */
 	u8	bMacPwrCtrlOn;
 
 	u32	UsbBulkOutSize;
@@ -324,7 +330,8 @@ struct hal_data_8188e {
 	enum usb_rx_agg_mode UsbRxAggMode;
 	u8	UsbRxAggBlockCount;	/*  USB Block count. Block size is
 					 * 512-byte in high speed and 64-byte
-					 * in full speed */
+					 * in full speed
+					 */
 	u8	UsbRxAggBlockTimeout;
 	u8	UsbRxAggPageCount;	/*  8192C DMA page count */
 	u8	UsbRxAggPageTimeout;
diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_spec.h b/drivers/staging/rtl8188eu/include/rtl8188e_spec.h
index c93e19d1c50f..71e2b817e20a 100644
--- a/drivers/staging/rtl8188eu/include/rtl8188e_spec.h
+++ b/drivers/staging/rtl8188eu/include/rtl8188e_spec.h
@@ -15,7 +15,7 @@
 #ifndef __RTL8188E_SPEC_H__
 #define __RTL8188E_SPEC_H__
 
-/*        8192C Regsiter offset definition */
+/*        8192C Register offset definition */
 
 #define		HAL_PS_TIMER_INT_DELAY	50	/*   50 microseconds */
 #define		HAL_92C_NAV_UPPER_UNIT	128	/*  micro-second */
@@ -62,12 +62,15 @@
 #define REG_HSIMR			0x0058
 #define REG_HSISR			0x005c
 #define REG_GPIO_PIN_CTRL_2		0x0060 /*  RTL8723 WIFI/BT/GPS
-				 * Multi-Function GPIO Pin Control. */
+						* Multi-Function GPIO Pin Control.
+						*/
 #define REG_GPIO_IO_SEL_2		0x0062 /*  RTL8723 WIFI/BT/GPS
-				 * Multi-Function GPIO Select. */
+						* Multi-Function GPIO Select.
+						*/
 #define REG_BB_PAD_CTRL			0x0064
 #define REG_MULTI_FUNC_CTRL		0x0068 /*  RTL8723 WIFI/BT/GPS
-				 * Multi-Function control source. */
+						* Multi-Function control source.
+						*/
 #define REG_GPIO_OUTPUT			0x006c
 #define REG_AFE_XTAL_CTRL_EXT		0x0078 /* RTL8188E */
 #define REG_XCK_OUT_CTRL		0x007c /* RTL8188E */
@@ -87,7 +90,8 @@
 #define REG_HIMRE_88E			0x00B8
 #define REG_HISRE_88E			0x00BC
 #define REG_EFUSE_ACCESS		0x00CF	/*  Efuse access protection
-						 * for RTL8723 */
+						 * for RTL8723
+						 */
 #define REG_BIST_SCAN			0x00D0
 #define REG_BIST_RPT			0x00D4
 #define REG_BIST_ROM_RPT		0x00D8
@@ -119,9 +123,9 @@
 #define REG_FWISR			0x0134
 #define REG_PKTBUF_DBG_CTRL		0x0140
 #define REG_PKTBUF_DBG_ADDR		(REG_PKTBUF_DBG_CTRL)
-#define REG_RXPKTBUF_DBG		(REG_PKTBUF_DBG_CTRL+2)
-#define REG_TXPKTBUF_DBG		(REG_PKTBUF_DBG_CTRL+3)
-#define REG_RXPKTBUF_CTRL		(REG_PKTBUF_DBG_CTRL+2)
+#define REG_RXPKTBUF_DBG		(REG_PKTBUF_DBG_CTRL + 2)
+#define REG_TXPKTBUF_DBG		(REG_PKTBUF_DBG_CTRL + 3)
+#define REG_RXPKTBUF_CTRL		(REG_PKTBUF_DBG_CTRL + 2)
 #define REG_PKTBUF_DBG_DATA_L		0x0144
 #define REG_PKTBUF_DBG_DATA_H		0x0148
 
@@ -252,21 +256,24 @@
 #define REG_TXPAUSE			0x0522
 #define REG_DIS_TXREQ_CLR		0x0523
 #define REG_RD_CTRL			0x0524
-/*  Format for offset 540h-542h: */
-/*	[3:0]:   TBTT prohibit setup in unit of 32us. The time for HW getting
- *		 beacon content before TBTT. */
-/*	[7:4]:   Reserved. */
-/*	[19:8]:  TBTT prohibit hold in unit of 32us. The time for HW holding
- *		 to send the beacon packet. */
-/*	[23:20]: Reserved */
-/*  Description: */
-/*	              | */
-/*      |<--Setup--|--Hold------------>| */
-/*	--------------|---------------------- */
-/*                 | */
-/*                TBTT */
-/*  Note: We cannot update beacon content to HW or send any AC packets during
- *	  the time between Setup and Hold. */
+/*  Format for offset 540h-542h:
+ *	[3:0]:   TBTT prohibit setup in unit of 32us. The time for HW getting
+ *		 beacon content before TBTT.
+ *
+ *	[7:4]:   Reserved.
+ *	[19:8]:  TBTT prohibit hold in unit of 32us. The time for HW holding
+ *		 to send the beacon packet.
+ *
+ *	[23:20]: Reserved
+ *  Description:
+ *	              |
+ *      |<--Setup--|--Hold------------>|
+ *	--------------|----------------------
+ *                 |
+ *                TBTT
+ *  Note: We cannot update beacon content to HW or send any AC packets during
+ *	  the time between Setup and Hold.
+ */
 #define REG_TBTT_PROHIBIT		0x0540
 #define REG_RD_NAV_NXT			0x0544
 #define REG_NAV_PROT_LEN		0x0546
@@ -340,13 +347,14 @@
 #define RXERR_RPT_RST			BIT(27)
 #define _RXERR_RPT_SEL(type)		((type) << 28)
 
-/*  Note: */
-/*	The NAV upper value is very important to WiFi 11n 5.2.3 NAV test.
+/*  Note:
+ *	The NAV upper value is very important to WiFi 11n 5.2.3 NAV test.
  *	The default value is always too small, but the WiFi TestPlan test
  *	by 25,000 microseconds of NAV through sending CTS in the air.
  *	We must update this value greater than 25,000 microseconds to pass
  *	the item. The offset of NAV_UPPER in 8192C Spec is incorrect, and
- *	the offset should be 0x0652. */
+ *	the offset should be 0x0652.
+ */
 #define REG_NAV_UPPER			0x0652	/*  unit of 128 */
 
 /* WMA, BA, CCX */
@@ -453,11 +461,12 @@
 /*  GPIO pins input value */
 #define	GPIO_IN				REG_GPIO_PIN_CTRL
 /*  GPIO pins output value */
-#define	GPIO_OUT			(REG_GPIO_PIN_CTRL+1)
+#define	GPIO_OUT			(REG_GPIO_PIN_CTRL + 1)
 /*  GPIO pins output enable when a bit is set to "1"; otherwise,
- *  input is configured. */
-#define	GPIO_IO_SEL			(REG_GPIO_PIN_CTRL+2)
-#define	GPIO_MOD			(REG_GPIO_PIN_CTRL+3)
+ *  input is configured.
+ */
+#define	GPIO_IO_SEL			(REG_GPIO_PIN_CTRL + 2)
+#define	GPIO_MOD			(REG_GPIO_PIN_CTRL + 3)
 
 /* 8723/8188E Host System Interrupt Mask Register (offset 0x58, 32 byte) */
 #define	HSIMR_GPIO12_0_INT_EN		BIT(0)
@@ -475,13 +484,13 @@
 
 /*   8192C (MSR) Media Status Register	(Offset 0x4C, 8 bits) */
 /*
-Network Type
-00: No link
-01: Link in ad hoc network
-10: Link in infrastructure network
-11: AP mode
-Default: 00b.
-*/
+ * Network Type
+ * 00: No link
+ * 01: Link in ad hoc network
+ * 10: Link in infrastructure network
+ * 11: AP mode
+ * Default: 00b.
+ */
 #define	MSR_NOLINK			0x00
 #define	MSR_ADHOC			0x01
 #define	MSR_INFRA			0x02
@@ -635,26 +644,27 @@ So the following defines for 92C is not entire!!!!!!
 =====================================================================
 =====================================================================*/
 /*
-Based on Datasheet V33---090401
-Register Summary
-Current IOREG MAP
-0x0000h ~ 0x00FFh   System Configuration (256 Bytes)
-0x0100h ~ 0x01FFh   MACTOP General Configuration (256 Bytes)
-0x0200h ~ 0x027Fh   TXDMA Configuration (128 Bytes)
-0x0280h ~ 0x02FFh   RXDMA Configuration (128 Bytes)
-0x0300h ~ 0x03FFh   PCIE EMAC Reserved Region (256 Bytes)
-0x0400h ~ 0x04FFh   Protocol Configuration (256 Bytes)
-0x0500h ~ 0x05FFh   EDCA Configuration (256 Bytes)
-0x0600h ~ 0x07FFh   WMAC Configuration (512 Bytes)
-0x2000h ~ 0x3FFFh   8051 FW Download Region (8196 Bytes)
-*/
+ * Based on Datasheet V33---090401
+ * Register Summary
+ * Current IOREG MAP
+ * 0x0000h ~ 0x00FFh   System Configuration (256 Bytes)
+ * 0x0100h ~ 0x01FFh   MACTOP General Configuration (256 Bytes)
+ * 0x0200h ~ 0x027Fh   TXDMA Configuration (128 Bytes)
+ * 0x0280h ~ 0x02FFh   RXDMA Configuration (128 Bytes)
+ * 0x0300h ~ 0x03FFh   PCIE EMAC Reserved Region (256 Bytes)
+ * 0x0400h ~ 0x04FFh   Protocol Configuration (256 Bytes)
+ * 0x0500h ~ 0x05FFh   EDCA Configuration (256 Bytes)
+ * 0x0600h ~ 0x07FFh   WMAC Configuration (512 Bytes)
+ * 0x2000h ~ 0x3FFFh   8051 FW Download Region (8196 Bytes)
+ */
 /*		 8192C (TXPAUSE) transmission pause (Offset 0x522, 8 bits) */
-/*  Note: */
-/*	The bits of stopping AC(VO/VI/BE/BK) queue in datasheet
- *	RTL8192S/RTL8192C are wrong, */
-/*	the correct arragement is VO - Bit0, VI - Bit1, BE - Bit2,
- *	and BK - Bit3. */
-/*	8723 and 88E may be not correct either in the earlier version. */
+/*  Note:
+ *	The bits of stopping AC(VO/VI/BE/BK) queue in datasheet
+ *	RTL8192S/RTL8192C are wrong,
+ *	the correct arragement is VO - Bit0, VI - Bit1, BE - Bit2,
+ *	and BK - Bit3.
+ *	8723 and 88E may be not correct either in the earlier version.
+ */
 #define		StopBecon			BIT(6)
 #define		StopHigh			BIT(5)
 #define		StopMgt				BIT(4)
@@ -680,7 +690,8 @@ Current IOREG MAP
 #define	RCR_AICV		BIT(9)	/* Accept ICV error packet */
 #define	RCR_ACRC32		BIT(8)	/* Accept CRC32 error packet */
 #define	RCR_CBSSID_BCN		BIT(7)	/* Accept BSSID match packet
-					 * (Rx beacon, probe rsp) */
+					 * (Rx beacon, probe rsp)
+					 */
 #define	RCR_CBSSID_DATA		BIT(6)	/* Accept BSSID match (Data)*/
 #define	RCR_CBSSID		RCR_CBSSID_DATA	/* Accept BSSID match */
 #define	RCR_APWRMGT		BIT(5)	/* Accept power management pkt*/
@@ -701,7 +712,7 @@ Current IOREG MAP
 
 #define REG_USB_HRPWM			0xFE58
 #define REG_USB_HCPWM			0xFE57
-/*        8192C Regsiter Bit and Content definition */
+/*        8192C Register Bit and Content definition */
 /*	0x0000h ~ 0x00FFh	System Configuration */
 
 /* 2 SYS_ISO_CTRL */
@@ -798,7 +809,7 @@ Current IOREG MAP
 /* 2 EFUSE_TEST (For RTL8723 partially) */
 #define EF_TRPT				BIT(7)
 /*  00: Wifi Efuse, 01: BT Efuse0, 10: BT Efuse1, 11: BT Efuse2 */
-#define EF_CELL_SEL			(BIT(8)|BIT(9))
+#define EF_CELL_SEL			(BIT(8) | BIT(9))
 #define LDOE25_EN			BIT(31)
 #define EFUSE_SEL(x)			(((x) & 0x3) << 8)
 #define EFUSE_SEL_MASK			0x300
@@ -835,7 +846,7 @@ Current IOREG MAP
 #define BD_MAC2				BIT(9)
 #define BD_MAC1				BIT(10)
 #define IC_MACPHY_MODE			BIT(11)
-#define CHIP_VER			(BIT(12)|BIT(13)|BIT(14)|BIT(15))
+#define CHIP_VER			(BIT(12) | BIT(13) | BIT(14) | BIT(15))
 #define BT_FUNC				BIT(16)
 #define VENDOR_ID			BIT(19)
 #define PAD_HWPD_IDN			BIT(22)
@@ -849,9 +860,9 @@ Current IOREG MAP
 #define CHIP_VER_RTL_SHIFT		12
 
 /* 2REG_GPIO_OUTSTS (For RTL8723 only) */
-#define	EFS_HCI_SEL			(BIT(0)|BIT(1))
-#define	PAD_HCI_SEL			(BIT(2)|BIT(3))
-#define	HCI_SEL				(BIT(4)|BIT(5))
+#define	EFS_HCI_SEL			(BIT(0) | BIT(1))
+#define	PAD_HCI_SEL			(BIT(2) | BIT(3))
+#define	HCI_SEL				(BIT(4) | BIT(5))
 #define	PKG_SEL_HCI			BIT(6)
 #define	FEN_GPS				BIT(7)
 #define	FEN_BT				BIT(8)
@@ -868,7 +879,7 @@ Current IOREG MAP
 #define	UPHY_SUSB			BIT(21)
 #define	PCI_SUSEN			BIT(22)
 #define	USB_SUSEN			BIT(23)
-#define	RF_RL_ID			(BIT(31)|BIT(30)|BIT(29)|BIT(28))
+#define	RF_RL_ID			(BIT(31) | BIT(30) | BIT(29) | BIT(28))
 
 /* 2SYS_CFG */
 #define RTL_ID				BIT(23)	/*  TestChip ID, 1:Test(RLE); 0:MP(RL) */
@@ -931,12 +942,12 @@ Current IOREG MAP
 #define HQSEL_HIQ			BIT(5)
 
 /*  For normal driver, 0x10C */
-#define _TXDMA_HIQ_MAP(x)		(((x)&0x3) << 14)
-#define _TXDMA_MGQ_MAP(x)		(((x)&0x3) << 12)
-#define _TXDMA_BKQ_MAP(x)		(((x)&0x3) << 10)
-#define _TXDMA_BEQ_MAP(x)		(((x)&0x3) << 8)
-#define _TXDMA_VIQ_MAP(x)		(((x)&0x3) << 6)
-#define _TXDMA_VOQ_MAP(x)		(((x)&0x3) << 4)
+#define _TXDMA_HIQ_MAP(x)		(((x) & 0x3) << 14)
+#define _TXDMA_MGQ_MAP(x)		(((x) & 0x3) << 12)
+#define _TXDMA_BKQ_MAP(x)		(((x) & 0x3) << 10)
+#define _TXDMA_BEQ_MAP(x)		(((x) & 0x3) << 8)
+#define _TXDMA_VIQ_MAP(x)		(((x) & 0x3) << 6)
+#define _TXDMA_VOQ_MAP(x)		(((x) & 0x3) << 4)
 
 #define QUEUE_LOW			1
 #define QUEUE_NORMAL			2
@@ -1242,10 +1253,12 @@ Current IOREG MAP
 
 /* 2REG_C2HEVT_CLEAR */
 /*  Set by driver and notify FW that the driver has read
- *  the C2H command message */
+ *  the C2H command message
+ */
 #define	C2H_EVT_HOST_CLOSE	0x00
 /*  Set by FW indicating that FW had set the C2H command
- *  message and it's not yet read by driver. */
+ *  message and it's not yet read by driver.
+ */
 #define C2H_EVT_FW_CLOSE	0xFF
 
 /* 2REG_MULTI_FUNC_CTRL(For RTL8723 Only) */
diff --git a/drivers/staging/rtl8188eu/include/rtw_cmd.h b/drivers/staging/rtl8188eu/include/rtw_cmd.h
index f79feeb4e38f..2c026bf6fecb 100644
--- a/drivers/staging/rtl8188eu/include/rtw_cmd.h
+++ b/drivers/staging/rtl8188eu/include/rtw_cmd.h
@@ -97,13 +97,13 @@ enum RFINTFS {
 };
 
 /*
-Caller Mode: Infra, Ad-HoC(C)
-
-Notes: To disconnect the current associated BSS
-
-Command Mode
-
-*/
+ * Caller Mode: Infra, Ad-HoC(C)
+ *
+ * Notes: To disconnect the current associated BSS
+ *
+ * Command Mode
+ *
+ */
 struct disconnect_parm {
 	u32 deauth_timeout_ms;
 };
@@ -114,13 +114,13 @@ struct	setopmode_parm {
 };
 
 /*
-Caller Mode: AP, Ad-HoC, Infra
-
-Notes: To ask RTL8711 performing site-survey
-
-Command-Event Mode
-
-*/
+ * Caller Mode: AP, Ad-HoC, Infra
+ *
+ * Notes: To ask RTL8711 performing site-survey
+ *
+ * Command-Event Mode
+ *
+ */
 
 #define RTW_SSID_SCAN_AMOUNT 9 /*  for WEXT_CSCAN_AMOUNT 9 */
 #define RTW_CHANNEL_SCAN_AMOUNT (14+37)
@@ -133,13 +133,13 @@ struct sitesurvey_parm {
 };
 
 /*
-Caller Mode: Any
-
-Notes: To set the auth type of RTL8711. open/shared/802.1x
-
-Command Mode
-
-*/
+ * Caller Mode: Any
+ *
+ * Notes: To set the auth type of RTL8711. open/shared/802.1x
+ *
+ * Command Mode
+ *
+ */
 struct setauth_parm {
 	u8 mode;  /* 0: legacy open, 1: legacy shared 2: 802.1x */
 	u8 _1x;   /* 0: PSK, 1: TLS */
@@ -147,40 +147,42 @@ struct setauth_parm {
 };
 
 /*
-Caller Mode: Infra
-
-a. algorithm: wep40, wep104, tkip & aes
-b. keytype: grp key/unicast key
-c. key contents
-
-when shared key ==> keyid is the camid
-when 802.1x ==> keyid [0:1] ==> grp key
-when 802.1x ==> keyid > 2 ==> unicast key
-
-*/
+ * Caller Mode: Infra
+ *
+ * a. algorithm: wep40, wep104, tkip & aes
+ * b. keytype: grp key/unicast key
+ * c. key contents
+ *
+ * when shared key ==> keyid is the camid
+ * when 802.1x ==> keyid [0:1] ==> grp key
+ * when 802.1x ==> keyid > 2 ==> unicast key
+ *
+ */
 struct setkey_parm {
 	u8	algorithm;	/* could be none, wep40, TKIP, CCMP, wep104 */
 	u8	keyid;
 	u8	grpkey;		/* 1: this is the grpkey for 802.1x.
-				 * 0: this is the unicast key for 802.1x */
+				 * 0: this is the unicast key for 802.1x
+				 */
 	u8	set_tx;		/* 1: main tx key for wep. 0: other key. */
 	u8	key[16];	/* this could be 40 or 104 */
 };
 
 /*
-When in AP or Ad-Hoc mode, this is used to
-allocate an sw/hw entry for a newly associated sta.
-
-Command
-
-when shared key ==> algorithm/keyid
-
-*/
+ * When in AP or Ad-Hoc mode, this is used to
+ * allocate an sw/hw entry for a newly associated sta.
+ *
+ * Command
+ *
+ * when shared key ==> algorithm/keyid
+ *
+ */
 struct set_stakey_parm {
 	u8	addr[ETH_ALEN];
 	u8	algorithm;
 	u8	id;/* currently for erasing cam entry if
-		    * algorithm == _NO_PRIVACY_ */
+		    * algorithm == _NO_PRIVACY_
+		    */
 	u8	key[16];
 };
 
@@ -191,15 +193,15 @@ struct set_stakey_rsp {
 };
 
 /*
-Caller Ad-Hoc/AP
-
-Command -Rsp(AID == CAMID) mode
-
-This is to force fw to add an sta_data entry per driver's request.
-
-FW will write an cam entry associated with it.
-
-*/
+ * Caller Ad-Hoc/AP
+ *
+ * Command -Rsp(AID == CAMID) mode
+ *
+ * This is to force fw to add an sta_data entry per driver's request.
+ *
+ * FW will write an cam entry associated with it.
+ *
+ */
 struct set_assocsta_parm {
 	u8	addr[ETH_ALEN];
 };
@@ -210,55 +212,57 @@ struct set_assocsta_rsp {
 };
 
 /*
-	Notes: This command is used for H2C/C2H loopback testing
-
-	mac[0] == 0
-	==> CMD mode, return H2C_SUCCESS.
-	The following condition must be true under CMD mode
-		mac[1] == mac[4], mac[2] == mac[3], mac[0]=mac[5]= 0;
-		s0 == 0x1234, s1 == 0xabcd, w0 == 0x78563412, w1 == 0x5aa5def7;
-		s2 == (b1 << 8 | b0);
-
-	mac[0] == 1
-	==> CMD_RSP mode, return H2C_SUCCESS_RSP
-
-	The rsp layout shall be:
-	rsp:			parm:
-		mac[0]  =   mac[5];
-		mac[1]  =   mac[4];
-		mac[2]  =   mac[3];
-		mac[3]  =   mac[2];
-		mac[4]  =   mac[1];
-		mac[5]  =   mac[0];
-		s0		=   s1;
-		s1		=   swap16(s0);
-		w0		=	swap32(w1);
-		b0		=	b1
-		s2		=	s0 + s1
-		b1		=	b0
-		w1		=	w0
-
-	mac[0] ==	2
-	==> CMD_EVENT mode, return	H2C_SUCCESS
-	The event layout shall be:
-	event:			parm:
-		mac[0]  =   mac[5];
-		mac[1]  =   mac[4];
-		mac[2]  =   event's seq no, starting from 1 to parm's marc[3]
-		mac[3]  =   mac[2];
-		mac[4]  =   mac[1];
-		mac[5]  =   mac[0];
-		s0		=   swap16(s0) - event.mac[2];
-		s1		=   s1 + event.mac[2];
-		w0		=	swap32(w0);
-		b0		=	b1
-		s2		=	s0 + event.mac[2]
-		b1		=	b0
-		w1		=	swap32(w1) - event.mac[2];
-
-		parm->mac[3] is the total event counts that host requested.
-	event will be the same with the cmd's param.
-*/
+ *	Notes: This command is used for H2C/C2H loopback testing
+ *
+ *	mac[0] == 0
+ *	==> CMD mode, return H2C_SUCCESS.
+ *	The following condition must be true under CMD mode
+ *		mac[1] == mac[4], mac[2] == mac[3], mac[0]=mac[5]= 0;
+ *		s0 == 0x1234, s1 == 0xabcd, w0 == 0x78563412, w1 == 0x5aa5def7;
+ *		s2 == (b1 << 8 | b0);
+ *
+ *	mac[0] == 1
+ *	==> CMD_RSP mode, return H2C_SUCCESS_RSP
+ *
+ *	The rsp layout shall be:
+ *	rsp:			parm:
+ *		mac[0]  =   mac[5];
+ *		mac[1]  =   mac[4];
+ *		mac[2]  =   mac[3];
+ *		mac[3]  =   mac[2];
+ *		mac[4]  =   mac[1];
+ *		mac[5]  =   mac[0];
+ *		s0		=   s1;
+ *		s1		=   swap16(s0);
+ *		w0		=	swap32(w1);
+ *		b0		=	b1
+ *		s2		=	s0 + s1
+ *		b1		=	b0
+ *		w1		=	w0
+ *
+ *	mac[0] ==	2
+ *	==> CMD_EVENT mode, return	H2C_SUCCESS
+ *	The event layout shall be:
+ *	event:			parm:
+ *		mac[0]  =   mac[5];
+ *		mac[1]  =   mac[4];
+ *		mac[2]  =   event's seq no, starting from 1 to parm's marc[3]
+ *		mac[2]  =   event's seq no, starting from 1 to parm's marc[3]
+ *		mac[2]  =   event's seq no, starting from 1 to parm's marc[3]
+ *		mac[3]  =   mac[2];
+ *		mac[4]  =   mac[1];
+ *		mac[5]  =   mac[0];
+ *		s0		=   swap16(s0) - event.mac[2];
+ *		s1		=   s1 + event.mac[2];
+ *		w0		=	swap32(w0);
+ *		b0		=	b1
+ *		s2		=	s0 + event.mac[2]
+ *		b1		=	b0
+ *		w1		=	swap32(w1) - event.mac[2];
+ *
+ *		parm->mac[3] is the total event counts that host requested.
+ *	event will be the same with the cmd's param.
+ */
 
 /*  CMD param Format for driver extra cmd handler */
 struct drvextra_cmd_parm {
@@ -285,15 +289,15 @@ struct SetChannelPlan_param {
 };
 
 /*
-
-Result:
-0x00: success
-0x01: success, and check Response.
-0x02: cmd ignored due to duplicated sequcne number
-0x03: cmd dropped due to invalid cmd code
-0x04: reserved.
-
-*/
+ *
+ * Result:
+ * 0x00: success
+ * 0x01: success, and check Response.
+ * 0x02: cmd ignored due to duplicated sequcne number
+ * 0x03: cmd dropped due to invalid cmd code
+ * 0x04: reserved.
+ *
+ */
 
 #define H2C_SUCCESS		0x00
 #define H2C_SUCCESS_RSP		0x01
diff --git a/drivers/staging/rtl8188eu/include/rtw_debug.h b/drivers/staging/rtl8188eu/include/rtw_debug.h
index 9cc4b8c7c166..4873ba49900c 100644
--- a/drivers/staging/rtl8188eu/include/rtw_debug.h
+++ b/drivers/staging/rtl8188eu/include/rtw_debug.h
@@ -106,9 +106,9 @@ extern u32 GlobalDebugLevel;
 					 (((__i + 1) % 4) == 0) ?	\
 					 "  " : " ");	\
 				if (((__i + 1) % 16) == 0)		\
-					printk("\n");			\
+					pr_cont("\n");			\
 			}						\
-			printk("\n");					\
+			pr_cont("\n");					\
 		}							\
 	} while (0)
 
diff --git a/drivers/staging/rtl8188eu/include/rtw_eeprom.h b/drivers/staging/rtl8188eu/include/rtw_eeprom.h
index 5dd73841dd9e..11d1cb6de506 100644
--- a/drivers/staging/rtl8188eu/include/rtw_eeprom.h
+++ b/drivers/staging/rtl8188eu/include/rtw_eeprom.h
@@ -55,7 +55,8 @@
 /*  This variable is initiailzed through EEPROM or registry, */
 /*  however, its definition may be different with that in EEPROM for */
 /*  EEPROM size consideration. So, we have to perform proper translation
- *  between them. */
+ *  between them.
+ */
 /*  Besides, CustomerID of registry has precedence of that of EEPROM. */
 /*  defined below. 060703, by rcnjko. */
 enum RT_CUSTOMER_ID {
@@ -79,7 +80,8 @@ enum RT_CUSTOMER_ID {
 	RT_CID_819x_Sitecom = 17,
 	RT_CID_CCX = 18, /*  It's set under CCX logo test and isn't demanded
 			  * for CCX functions, but for test behavior like retry
-			  * limit and tx report. By Bruce, 2009-02-17. */
+			  * limit and tx report. By Bruce, 2009-02-17.
+			  */
 	RT_CID_819x_Lenovo = 19,
 	RT_CID_819x_QMI = 20,
 	RT_CID_819x_Edimax_Belkin = 21,
@@ -89,7 +91,8 @@ enum RT_CUSTOMER_ID {
 	RT_CID_819x_Acer = 25,
 	RT_CID_819x_AzWave_ASUS = 26,
 	RT_CID_819x_AzWave = 27, /*  For AzWave in PCIe,i
-				  * The ID is AzWave use and not only Asus */
+				  * The ID is AzWave use and not only Asus
+				  */
 	RT_CID_819x_HP = 28,
 	RT_CID_819x_WNC_COREGA = 29,
 	RT_CID_819x_Arcadyan_Belkin = 30,
diff --git a/drivers/staging/rtl8188eu/include/rtw_event.h b/drivers/staging/rtl8188eu/include/rtw_event.h
index 1c5ebde97091..e798e794d962 100644
--- a/drivers/staging/rtl8188eu/include/rtw_event.h
+++ b/drivers/staging/rtl8188eu/include/rtw_event.h
@@ -22,42 +22,42 @@
 #include <linux/sem.h>
 
 /*
-Used to report a bss has been scanned
-*/
+ * Used to report a bss has been scanned
+ */
 struct survey_event	{
 	struct wlan_bssid_ex bss;
 };
 
 /*
-Used to report that the requested site survey has been done.
-
-bss_cnt indicates the number of bss that has been reported.
-
-
-*/
+ * Used to report that the requested site survey has been done.
+ *
+ * bss_cnt indicates the number of bss that has been reported.
+ *
+ *
+ */
 struct surveydone_event {
 	unsigned int	bss_cnt;
 
 };
 
 /*
-Used to report the link result of joinning the given bss
-
-
-join_res:
--1: authentication fail
--2: association fail
-> 0: TID
-
-*/
+ * Used to report the link result of joinning the given bss
+ *
+ *
+ * join_res:
+ * -1: authentication fail
+ * -2: association fail
+ * > 0: TID
+ *
+ */
 struct joinbss_event {
 	struct	wlan_network	network;
 };
 
 /*
-Used to report a given STA has joinned the created BSS.
-It is used in AP/Ad-HoC(M) mode.
-*/
+ * Used to report a given STA has joinned the created BSS.
+ * It is used in AP/Ad-HoC(M) mode.
+ */
 
 struct stassoc_event {
 	unsigned char macaddr[6];
diff --git a/drivers/staging/rtl8188eu/include/rtw_led.h b/drivers/staging/rtl8188eu/include/rtw_led.h
index 607d1ba56a46..884e1397755a 100644
--- a/drivers/staging/rtl8188eu/include/rtw_led.h
+++ b/drivers/staging/rtl8188eu/include/rtw_led.h
@@ -58,7 +58,8 @@ struct LED_871x {
 
 	enum LED_STATE_871x	CurrLedState; /*  Current LED state. */
 	enum LED_STATE_871x	BlinkingLedState; /*  Next state for blinking,
-				   * either RTW_LED_ON or RTW_LED_OFF are. */
+						   * either RTW_LED_ON or RTW_LED_OFF are.
+						   */
 
 	u8 bLedOn; /*  true if LED is ON, false if LED is OFF. */
 
@@ -75,7 +76,8 @@ struct LED_871x {
 	u8 bLedLinkBlinkInProgress;
 	u8 bLedScanBlinkInProgress;
 	struct work_struct BlinkWorkItem; /* Workitem used by BlinkTimer to
-					   * manipulate H/W to blink LED. */
+					   * manipulate H/W to blink LED.
+					   */
 };
 
 #define IS_LED_WPS_BLINKING(_LED_871x)					\
@@ -91,7 +93,6 @@ struct led_priv {
 	/* add for led control */
 };
 
-void BlinkTimerCallback(unsigned long data);
 void BlinkWorkItemCallback(struct work_struct *work);
 
 void ResetLedStatus(struct LED_871x *pLed);
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme.h b/drivers/staging/rtl8188eu/include/rtw_mlme.h
index 5c5d0ae8bdd1..e6d4175af3a2 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme.h
@@ -70,25 +70,28 @@ enum rt_scan_type {
 enum SCAN_RESULT_TYPE {
 	SCAN_RESULT_P2P_ONLY = 0,	/* Will return all the P2P devices. */
 	SCAN_RESULT_ALL = 1,		/* Will return all the scanned device,
-					 * include AP. */
+					 * include AP.
+					 */
 	SCAN_RESULT_WFD_TYPE = 2	/* Will just return the correct WFD
-					 * device. */
+					 * device.
+					 */
 					/* If this device is Miracast sink
 					 * device, it will just return all the
-					 * Miracast source devices. */
+					 * Miracast source devices.
+					 */
 };
 
 /*
-there are several "locks" in mlme_priv,
-since mlme_priv is a shared resource between many threads,
-like ISR/Call-Back functions, the OID handlers, and even timer functions.
-
-Each _queue has its own locks, already.
-Other items are protected by mlme_priv.lock.
-
-To avoid possible dead lock, any thread trying to modifiying mlme_priv
-SHALL not lock up more than one lock at a time!
-*/
+ * there are several "locks" in mlme_priv,
+ * since mlme_priv is a shared resource between many threads,
+ * like ISR/Call-Back functions, the OID handlers, and even timer functions.
+ *
+ * Each _queue has its own locks, already.
+ * Other items are protected by mlme_priv.lock.
+ *
+ * To avoid possible dead lock, any thread trying to modifiying mlme_priv
+ * SHALL not lock up more than one lock at a time!
+ */
 
 #define traffic_threshold	10
 #define	traffic_scan_period	500
@@ -102,9 +105,11 @@ struct rt_link_detect {
 	bool	bRxBusyTraffic;
 	bool	bHigherBusyTraffic; /*  For interrupt migration purpose. */
 	bool	bHigherBusyRxTraffic; /* We may disable Tx interrupt according
-				       * to Rx traffic. */
+				       * to Rx traffic.
+				       */
 	bool	bHigherBusyTxTraffic; /* We may disable Tx interrupt according
-				       * to Tx traffic. */
+				       * to Tx traffic.
+				       */
 };
 
 struct mlme_priv {
@@ -164,7 +169,8 @@ struct mlme_priv {
 
 #if defined(CONFIG_88EU_AP_MODE)
 	/* Number of associated Non-ERP stations (i.e., stations using 802.11b
-	 * in 802.11g BSS) */
+	 * in 802.11g BSS)
+	 */
 	int num_sta_non_erp;
 
 	/* Number of associated stations that do not support Short Slot Time */
@@ -325,10 +331,10 @@ void rtw_update_registrypriv_dev_network(struct adapter *adapter);
 
 void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter);
 
-void _rtw_join_timeout_handler(unsigned long data);
-void rtw_scan_timeout_handler(unsigned long data);
+void _rtw_join_timeout_handler(struct timer_list *t);
+void rtw_scan_timeout_handler(struct timer_list *t);
 
-void rtw_dynamic_check_timer_handlder(unsigned long data);
+void rtw_dynamic_check_timer_handlder(struct timer_list *t);
 #define rtw_is_scan_deny(adapter) false
 #define rtw_clear_scan_deny(adapter) do {} while (0)
 #define rtw_set_scan_deny_timer_hdl(adapter) do {} while (0)
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
index 1b1caaf583c9..118bf5509d97 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
@@ -101,9 +101,11 @@ extern unsigned char WMM_PARA_OUI[];
 /*  Channel Plan Type. */
 /*  Note: */
 /*	We just add new channel plan when the new channel plan is different
- *      from any of the following channel plan. */
+ *      from any of the following channel plan.
+ */
 /*	If you just want to customize the actions(scan period or join actions)
- *      about one of the channel plan, */
+ *      about one of the channel plan,
+ */
 /*	customize them in struct rt_channel_info in the RT_CHANNEL_LIST. */
 enum RT_CHANNEL_DOMAIN {
 	/*  old channel plan mapping =====  */
@@ -319,7 +321,8 @@ struct mlme_ext_info {
 	u32	authModeToggle;
 	u32	enc_algo;/* encrypt algorithm; */
 	u32	key_index;	/*  this is only valid for legacy wep,
-				 *  0~3 for key id. */
+				 *  0~3 for key id.
+				 */
 	u32	iv;
 	u8	chg_txt[128];
 	u16	aid;
@@ -353,16 +356,19 @@ struct mlme_ext_info {
 	struct HT_info_element	HT_info;
 	struct wlan_bssid_ex	network;/* join network or bss_network,
 					 * if in ap mode, it is the same
-					 * as cur_network.network */
+					 * as cur_network.network
+					 */
 	struct FW_Sta_Info	FW_sta_info[NUM_STA];
 };
 
 /*  The channel information about this channel including joining,
- *  scanning, and power constraints. */
+ *  scanning, and power constraints.
+ */
 struct rt_channel_info {
 	u8	ChannelNum;	/*  The channel number. */
 	enum rt_scan_type ScanType;	/*  Scan type such as passive
-					 *  or active scan. */
+					 *  or active scan.
+					 */
 	u32	rx_count;
 };
 
@@ -413,7 +419,8 @@ struct mlme_ext_priv {
 	unsigned char	cur_wireless_mode;	/*  NETWORK_TYPE */
 
 	unsigned char	oper_channel; /* saved chan info when call
-				       * set_channel_bw */
+				       * set_channel_bw
+				       */
 	unsigned char	oper_bwmode;
 	unsigned char	oper_ch_offset;/* PRIME_CHNL_OFFSET */
 
@@ -427,7 +434,8 @@ struct mlme_ext_priv {
 	struct mlme_ext_info	mlmext_info;/* for sta/adhoc mode, including
 					     * current scan/connecting/connected
 					     * related info. For ap mode,
-					     * network includes ap's cap_info*/
+					     * network includes ap's cap_info
+					     */
 	struct timer_list survey_timer;
 	struct timer_list link_timer;
 	u16	chan_scan_time;
@@ -572,9 +580,9 @@ void mlmeext_sta_add_event_callback(struct adapter *padapter,
 
 void linked_status_chk(struct adapter *padapter);
 
-void survey_timer_hdl(unsigned long data);
-void link_timer_hdl(unsigned long data);
-void addba_timer_hdl(unsigned long data);
+void survey_timer_hdl(struct timer_list *t);
+void link_timer_hdl(struct timer_list *t);
+void addba_timer_hdl(struct timer_list *t);
 
 #define set_survey_timer(mlmeext, ms) \
 	mod_timer(&mlmeext->survey_timer, jiffies +	\
@@ -690,7 +698,8 @@ enum rtw_c2h_event {
 	_C2HBCN_EVT_,
 	_ReportPwrState_EVT_,	/* filen: only for PCIE, USB */
 	_CloseRF_EVT_,		/* filen: only for PCIE,
-					 * work around ASPM */
+				 * work around ASPM
+				 */
 	MAX_C2HEVT
 };
 
diff --git a/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h b/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h
index 4872a21b3103..aa353aefed3d 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h
@@ -521,14 +521,16 @@
 #define	bCCKRxPhase			0x4
 #if (RTL92SE_FPGA_VERIFY == 1)
 #define	bLSSIReadAddress		0x3f000000   /* LSSI "Read" Address
-					Reg 0x824 rFPGA0_XA_HSSIParameter2 */
+						      * Reg 0x824 rFPGA0_XA_HSSIParameter2
+						      */
 #else
 #define	bLSSIReadAddress		0x7f800000   /*  T65 RF */
 #endif
 #define	bLSSIReadEdge			0x80000000   /* LSSI "Read" edge signal */
 #if (RTL92SE_FPGA_VERIFY == 1)
 #define	bLSSIReadBackData		0xfff	/*  Reg 0x8a0
-					 rFPGA0_XA_LSSIReadBack */
+						 * rFPGA0_XA_LSSIReadBack
+						 */
 #else
 #define	bLSSIReadBackData		0xfffff	/*  T65 RF */
 #endif
@@ -548,13 +550,16 @@
 #define	bDA6Swing			0x380000
 
 #define	bADClkPhase			0x4000000	/*  Reg 0x880
-	 rFPGA0_AnalogParameter1 20/40 CCK support switch 40/80 BB MHZ */
+							 * rFPGA0_AnalogParameter1 20/40 CCK
+							 * support switch 40/80 BB MHZ
+							 */
 
 #define	b80MClkDelay			0x18000000	/*  Useless */
 #define	bAFEWatchDogEnable		0x20000000
 
 #define	bXtalCap01			0xc0000000	/*  Reg 0x884
-	 rFPGA0_AnalogParameter2 Crystal cap */
+							 * rFPGA0_AnalogParameter2 Crystal cap
+							 */
 #define	bXtalCap23			0x3
 #define	bXtalCap92x			0x0f000000
 #define		bXtalCap		0x0f000000
@@ -598,7 +603,8 @@
 #define	bCCKTxOn			0x1
 #define	bOFDMTxOn			0x2
 #define	bDebugPage			0xfff  /* reset debug page and HWord,
-						* LWord */
+						* LWord
+						*/
 #define	bDebugItem			0xff   /* reset debug page and LWord */
 #define	bAntL				0x10
 #define	bAntNonHT			0x100
@@ -1071,7 +1077,8 @@
 #define RCR_EnCS1	BIT(29)		/*  enable carrier sense method 1 */
 #define RCR_EnCS2	BIT(30)		/*  enable carrier sense method 2 */
 #define RCR_OnlyErlPkt	BIT(31)		/*  Rx Early mode is performed for
-					 *  packet size greater than 1536 */
+					 *  packet size greater than 1536
+					 */
 
 /*--------------------------Define Parameters-------------------------------*/
 
diff --git a/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h b/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h
index 18a9e744fcbe..f39e90cfc031 100644
--- a/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h
+++ b/drivers/staging/rtl8188eu/include/rtw_pwrctrl.h
@@ -51,11 +51,11 @@ enum power_mgnt {
 };
 
 /*
-	BIT[2:0] = HW state
-	BIT[3] = Protocol PS state,   0: register active state,
-				      1: register sleep state
-	BIT[4] = sub-state
-*/
+ *	BIT[2:0] = HW state
+ *	BIT[3] = Protocol PS state,   0: register active state,
+ *				      1: register sleep state
+ *	BIT[4] = sub-state
+ */
 
 #define PS_DPS			BIT(0)
 #define PS_LCLK			(PS_DPS)
@@ -115,9 +115,11 @@ enum rt_rf_power_state {
 #define	RT_RF_OFF_LEVL_FREE_FW		BIT(4)	/* FW free, re-download the FW*/
 #define	RT_RF_OFF_LEVL_FW_32K		BIT(5)	/* FW in 32k */
 #define	RT_RF_PS_LEVEL_ALWAYS_ASPM	BIT(6)	/* Always enable ASPM and Clock
-						 * Req in initialization. */
+						 * Req in initialization.
+						 */
 #define	RT_RF_LPS_DISALBE_2R		BIT(30)	/* When LPS is on, disable 2R
-						 * if no packet is RX or TX. */
+						 * if no packet is RX or TX.
+						 */
 #define	RT_RF_LPS_LEVEL_ASPM		BIT(31)	/* LPS with ASPM */
 
 #define	RT_IN_PS_LEVEL(ppsc, _PS_FLAG)				\
@@ -145,7 +147,8 @@ struct pwrctrl_priv {
 	struct mutex mutex_lock;
 	volatile u8 rpwm; /*  requested power state for fw */
 	volatile u8 cpwm; /*  fw current power state. updated when
-			   * 1. read from HCPWM 2. driver lowers power level */
+			   * 1. read from HCPWM 2. driver lowers power level
+			   */
 	volatile u8 tog; /*  toggling */
 	volatile u8 cpwm_tog; /*  toggling */
 
@@ -170,7 +173,8 @@ struct pwrctrl_priv {
 
 	u8	ips_mode;
 	u8	ips_mode_req;	/*  used to accept the mode setting request,
-				 *  will update to ipsmode later */
+				 *  will update to ipsmode later
+				 */
 	uint bips_processing;
 	unsigned long ips_deny_time; /* will deny IPS when system time less than this */
 	u8 ps_processing; /* temp used to mark whether in rtw_ps_processor */
diff --git a/drivers/staging/rtl8188eu/include/rtw_qos.h b/drivers/staging/rtl8188eu/include/rtw_qos.h
index 45a77f6f8427..576dff68d0dc 100644
--- a/drivers/staging/rtl8188eu/include/rtw_qos.h
+++ b/drivers/staging/rtl8188eu/include/rtw_qos.h
@@ -19,7 +19,8 @@
 
 struct	qos_priv	{
 	unsigned int	  qos_option;	/* bit mask option: u-apsd,
-					 * s-apsd, ts, block ack... */
+					 * s-apsd, ts, block ack...
+					 */
 };
 
 #endif	/* _RTL871X_QOS_H_ */
diff --git a/drivers/staging/rtl8188eu/include/rtw_recv.h b/drivers/staging/rtl8188eu/include/rtw_recv.h
index 121150860450..7e85f700acb3 100644
--- a/drivers/staging/rtl8188eu/include/rtw_recv.h
+++ b/drivers/staging/rtl8188eu/include/rtw_recv.h
@@ -46,23 +46,23 @@ struct recv_reorder_ctrl {
 struct	stainfo_rxcache	{
 	u16	tid_rxseq[16];
 /*
-	unsigned short	tid0_rxseq;
-	unsigned short	tid1_rxseq;
-	unsigned short	tid2_rxseq;
-	unsigned short	tid3_rxseq;
-	unsigned short	tid4_rxseq;
-	unsigned short	tid5_rxseq;
-	unsigned short	tid6_rxseq;
-	unsigned short	tid7_rxseq;
-	unsigned short	tid8_rxseq;
-	unsigned short	tid9_rxseq;
-	unsigned short	tid10_rxseq;
-	unsigned short	tid11_rxseq;
-	unsigned short	tid12_rxseq;
-	unsigned short	tid13_rxseq;
-	unsigned short	tid14_rxseq;
-	unsigned short	tid15_rxseq;
-*/
+ *	unsigned short	tid0_rxseq;
+ *	unsigned short	tid1_rxseq;
+ *	unsigned short	tid2_rxseq;
+ *	unsigned short	tid3_rxseq;
+ *	unsigned short	tid4_rxseq;
+ *	unsigned short	tid5_rxseq;
+ *	unsigned short	tid6_rxseq;
+ *	unsigned short	tid7_rxseq;
+ *	unsigned short	tid8_rxseq;
+ *	unsigned short	tid9_rxseq;
+ *	unsigned short	tid10_rxseq;
+ *	unsigned short	tid11_rxseq;
+ *	unsigned short	tid12_rxseq;
+ *	unsigned short	tid13_rxseq;
+ *	unsigned short	tid14_rxseq;
+ *	unsigned short	tid15_rxseq;
+ */
 };
 
 struct signal_stat {
@@ -79,7 +79,8 @@ struct phy_info {
 	u8	RxMIMOSignalStrength[MAX_PATH_NUM_92CS];/*  in 0~100 index */
 	s8	RxPower; /*  in dBm Translate from PWdB */
 /*  Real power in dBm for this packet, no beautification and aggregation.
- * Keep this raw info to be used for the other procedures. */
+ * Keep this raw info to be used for the other procedures.
+ */
 	s8	recvpower;
 	u8	BTRxRSSIPercentage;
 	u8	SignalStrength; /*  in 0-100 index. */
@@ -106,7 +107,8 @@ struct rx_pkt_attrib {
 	u8	privacy; /* in frame_ctrl field */
 	u8	bdecrypted;
 	u8	encrypt; /* when 0 indicate no encrypt. when non-zero,
-			  * indicate the encrypt algorithm */
+			  * indicate the encrypt algorithm
+			  */
 	u8	iv_len;
 	u8	icv_len;
 	u8	crc_err;
@@ -152,12 +154,12 @@ struct recv_stat {
 };
 
 /*
-accesser of recv_priv: rtw_recv_entry(dispatch / passive level);
-recv_thread(passive) ; returnpkt(dispatch)
-; halt(passive) ;
-
-using enter_critical section to protect
-*/
+ * accesser of recv_priv: rtw_recv_entry(dispatch / passive level);
+ * recv_thread(passive) ; returnpkt(dispatch)
+ * ; halt(passive) ;
+ *
+ * using enter_critical section to protect
+ */
 struct recv_priv {
 	struct __queue free_recv_queue;
 	struct __queue recv_pending_queue;
@@ -209,20 +211,20 @@ struct recv_buf {
 };
 
 /*
-	head  ----->
-
-		data  ----->
-
-			payload
-
-		tail  ----->
-
-
-	end   ----->
-
-	len = (unsigned int )(tail - data);
-
-*/
+ *	head  ----->
+ *
+ *		data  ----->
+ *
+ *			payload
+ *
+ *		tail  ----->
+ *
+ *
+ *	end   ----->
+ *
+ *	len = (unsigned int )(tail - data);
+ *
+ */
 struct recv_frame {
 	struct list_head list;
 	struct sk_buff	 *pkt;
@@ -247,7 +249,7 @@ void rtw_free_recvframe_queue(struct __queue *pframequeue,
 			      struct __queue *pfree_recv_queue);
 u32 rtw_free_uc_swdec_pending_queue(struct adapter *adapter);
 
-void rtw_reordering_ctrl_timeout_handler(unsigned long data);
+void rtw_reordering_ctrl_timeout_handler(struct timer_list *t);
 
 static inline s32 translate_percentage_to_dbm(u32 sig_stren_index)
 {
diff --git a/drivers/staging/rtl8188eu/include/rtw_rf.h b/drivers/staging/rtl8188eu/include/rtw_rf.h
index 66896af02042..0718a29e7c9d 100644
--- a/drivers/staging/rtl8188eu/include/rtw_rf.h
+++ b/drivers/staging/rtl8188eu/include/rtw_rf.h
@@ -31,7 +31,8 @@
 #define RTL8711_RF_DEF_SENS		4
 
 /*  We now define the following channels as the max channels in each
- * channel plan. */
+ * channel plan.
+ */
 /*  2G, total 14 chnls */
 /*  {1,2,3,4,5,6,7,8,9,10,11,12,13,14} */
 #define	MAX_CHANNEL_NUM_2G		14
@@ -65,7 +66,8 @@ enum capability {
 	cChannelAgility	= 0x0080,
 	cSpectrumMgnt	= 0x0100,
 	cQos		= 0x0200,	/* For HCCA, use with CF-Pollable
-					 * and CF-PollReq */
+					 * and CF-PollReq
+					 */
 	cShortSlotTime	= 0x0400,
 	cAPSD		= 0x0800,
 	cRM		= 0x1000,	/*  RRM (Radio Request Measurement) */
diff --git a/drivers/staging/rtl8188eu/include/rtw_security.h b/drivers/staging/rtl8188eu/include/rtw_security.h
index 74fe664787e5..a0c6cf706218 100644
--- a/drivers/staging/rtl8188eu/include/rtw_security.h
+++ b/drivers/staging/rtl8188eu/include/rtw_security.h
@@ -100,20 +100,26 @@ struct rt_pmkid_list {
 
 struct security_priv {
 	u32	  dot11AuthAlgrthm;	/*  802.11 auth, could be open,
-					 * shared, 8021x and authswitch */
+					 * shared, 8021x and authswitch
+					 */
 	u32	  dot11PrivacyAlgrthm;	/*  This specify the privacy for
-					 * shared auth. algorithm. */
+					 * shared auth. algorithm.
+					 */
 	/* WEP */
 	u32	  dot11PrivacyKeyIndex;	/*  this is only valid for legendary
-					 * wep, 0~3 for key id.(tx key index) */
+					 * wep, 0~3 for key id.(tx key index)
+					 */
 	union Keytype dot11DefKey[4];	/*  this is only valid for def. key */
 	u32	dot11DefKeylen[4];
 	u32 dot118021XGrpPrivacy;	/*  This specify the privacy algthm.
-					 * used for Grp key */
+					 * used for Grp key
+					 */
 	u32	dot118021XGrpKeyid;	/*  key id used for Grp Key
-					 * ( tx key index) */
+					 * ( tx key index)
+					 */
 	union Keytype	dot118021XGrpKey[4];	/*  802.1x Group Key,
-						 * for inx0 and inx1 */
+						 * for inx0 and inx1
+						 */
 	union Keytype	dot118021XGrptxmickey[4];
 	union Keytype	dot118021XGrprxmickey[4];
 	union pn48	dot11Grptxpn;		/* PN48 used for Grp Key xmit.*/
@@ -134,10 +140,12 @@ struct security_priv {
 	u8	bcheck_grpkey;
 	u8	bgrpkey_handshake;
 	s32	hw_decrypted;/* if the rx packets is hw_decrypted==false,i
-			      * it means the hw has not been ready. */
+			      * it means the hw has not been ready.
+			      */
 
 	/* keeps the auth_type & enc_status from upper layer
-	 * ioctl(wpa_supplicant or wzc) */
+	 * ioctl(wpa_supplicant or wzc)
+	 */
 	u32 ndisauthtype;	/*  NDIS_802_11_AUTHENTICATION_MODE */
 	u32 ndisencryptstatus;	/*  NDIS_802_11_ENCRYPTION_STATUS */
 	struct wlan_bssid_ex sec_bss;  /* for joinbss (h2c buffer) usage */
@@ -256,7 +264,8 @@ static inline u32 rotr(u32 val, int bits)
 /* ===== start - public domain SHA256 implementation ===== */
 
 /* This is based on SHA256 implementation in LibTomCrypt that was released into
- * public domain by Tom St Denis. */
+ * public domain by Tom St Denis.
+ */
 
 /* the K array */
 static const unsigned long K[64] = {
diff --git a/drivers/staging/rtl8188eu/include/rtw_xmit.h b/drivers/staging/rtl8188eu/include/rtw_xmit.h
index dd6b7a9a8d4a..b4b3d13ace9e 100644
--- a/drivers/staging/rtl8188eu/include/rtw_xmit.h
+++ b/drivers/staging/rtl8188eu/include/rtw_xmit.h
@@ -115,11 +115,13 @@ struct pkt_attrib {
 	u16	seqnum;
 	u16	hdrlen;		/* the WLAN Header Len */
 	u32	pktlen;		/* the original 802.3 pkt raw_data len (not include
-				 * ether_hdr data) */
+				 * ether_hdr data)
+				 */
 	u32	last_txcmdsz;
 	u8	nr_frags;
 	u8	encrypt;	/* when 0 indicate no encrypt. when non-zero,
-				 * indicate the encrypt algorith */
+				 * indicate the encrypt algorith
+				 */
 	u8	iv_len;
 	u8	icv_len;
 	u8	iv[18];
@@ -234,7 +236,8 @@ struct sta_xmit_priv {
 	spinlock_t lock;
 	int	option;
 	int	apsd_setting;	/* When bit mask is on, the associated edca
-				 * queue supports APSD. */
+				 * queue supports APSD.
+				 */
 	struct tx_servq	be_q;			/* priority == 0,3 */
 	struct tx_servq	bk_q;			/* priority == 1,2 */
 	struct tx_servq	vi_q;			/* priority == 4,5 */
@@ -280,7 +283,8 @@ struct	xmit_priv {
 	u8	hwxmit_entry;
 	u8	wmm_para_seq[4];/* sequence for wmm ac parameter strength
 				 * from large to small. it's value is 0->vo,
-				 * 1->vi, 2->be, 3->bk. */
+				 * 1->vi, 2->be, 3->bk.
+				 */
 	u8		txirp_cnt;/*  */
 	struct tasklet_struct xmit_tasklet;
 	/* per AC pending irp */
diff --git a/drivers/staging/rtl8188eu/include/sta_info.h b/drivers/staging/rtl8188eu/include/sta_info.h
index 42a035123365..8f01deed6e4a 100644
--- a/drivers/staging/rtl8188eu/include/sta_info.h
+++ b/drivers/staging/rtl8188eu/include/sta_info.h
@@ -126,7 +126,8 @@ struct sta_info {
 	/* Notes: */
 	/* STA_Mode: */
 	/* curr_network(mlme_priv/security_priv/qos/ht) +
-	 * sta_info: (STA & AP) CAP/INFO */
+	 * sta_info: (STA & AP) CAP/INFO
+	 */
 	/* scan_q: AP CAP/INFO */
 
 	/* AP_Mode: */
@@ -184,7 +185,8 @@ struct sta_info {
 
 	/*  ================ODM Relative Info======================= */
 	/*  Please be careful, don't declare too much structure here.
-	 *  It will cost memory * STA support num. */
+	 *  It will cost memory * STA support num.
+	 */
 	/*  2011/10/20 MH Add for ODM STA info. */
 	/*  Driver Write */
 	u8	bValid;		/*  record the sta status link or not? */
@@ -318,9 +320,11 @@ struct	sta_priv {
 	struct sta_info *sta_aid[NUM_STA];
 
 	u16 sta_dz_bitmap;/* only support 15 stations, station aid bitmap
-			   * for sleeping sta. */
+			   * for sleeping sta.
+			   */
 	u16 tim_bitmap;	/* only support 15 stations, aid=0~15 mapping
-			 * bit0~bit15 */
+			 * bit0~bit15
+			 */
 
 	u16 max_num_sta;
 
diff --git a/drivers/staging/rtl8188eu/include/wifi.h b/drivers/staging/rtl8188eu/include/wifi.h
index cb46d353327b..084a246eec19 100644
--- a/drivers/staging/rtl8188eu/include/wifi.h
+++ b/drivers/staging/rtl8188eu/include/wifi.h
@@ -35,7 +35,8 @@
 
 /*  This value is tested by WiFi 11n Test Plan 5.2.3. */
 /*  This test verifies the WLAN NIC can update the NAV through sending
- *  the CTS with large duration. */
+ *  the CTS with large duration.
+ */
 #define	WiFiNavUpperUs				30000	/*  30 ms */
 
 enum WIFI_FRAME_TYPE {
@@ -459,14 +460,14 @@ static inline int IsFrameTypeCtrl(unsigned char *pframe)
 #define _IEEE8021X_PSK_			2	/*  WPA with pre-shared key */
 
 /*
-#define _NO_PRIVACY_			0
-#define _WEP_40_PRIVACY_		1
-#define _TKIP_PRIVACY_			2
-#define _WRAP_PRIVACY_			3
-#define _CCMP_PRIVACY_			4
-#define _WEP_104_PRIVACY_		5
-#define _WEP_WPA_MIXED_PRIVACY_ 6	WEP + WPA
-*/
+ * #define _NO_PRIVACY_			0
+ * #define _WEP_40_PRIVACY_		1
+ * #define _TKIP_PRIVACY_		2
+ * #define _WRAP_PRIVACY_		3
+ * #define _CCMP_PRIVACY_		4
+ * #define _WEP_104_PRIVACY_		5
+ * #define _WEP_WPA_MIXED_PRIVACY_ 6	WEP + WPA
+ */
 
 /*-----------------------------------------------------------------------------
 				Below is the definition for WMM
@@ -771,10 +772,12 @@ enum ht_cap_ampdu_factor {
 #define	P2P_PROVISIONING_SCAN_CNT		3
 
 /* default value, used when: (1)p2p disabled or (2)p2p enabled
- * but only do 1 scan phase */
+ * but only do 1 scan phase
+ */
 #define	P2P_FINDPHASE_EX_NONE		0
 /*  used when p2p enabled and want to do 1 scan phase and
- *  P2P_FINDPHASE_EX_MAX-1 find phase */
+ *  P2P_FINDPHASE_EX_MAX-1 find phase
+ */
 #define	P2P_FINDPHASE_EX_FULL		1
 #define	P2P_FINDPHASE_EX_SOCIAL_FIRST	(P2P_FINDPHASE_EX_FULL+1)
 #define	P2P_FINDPHASE_EX_MAX		4
diff --git a/drivers/staging/rtl8188eu/include/wlan_bssdef.h b/drivers/staging/rtl8188eu/include/wlan_bssdef.h
index e1931dd04da0..d7b25d2f933a 100644
--- a/drivers/staging/rtl8188eu/include/wlan_bssdef.h
+++ b/drivers/staging/rtl8188eu/include/wlan_bssdef.h
@@ -86,7 +86,8 @@ struct ndis_802_11_var_ie {
  *	+ NDIS_802_11_LENGTH_RATES_EX + IELength
  *
  * Except the IELength, all other fields are fixed length.
- * Therefore, we can define a macro to represent the partial sum. */
+ * Therefore, we can define a macro to represent the partial sum.
+ */
 
 enum ndis_802_11_auth_mode {
 	Ndis802_11AuthModeOpen,
@@ -130,7 +131,8 @@ enum ndis_802_11_reload_def {
 struct ndis_802_11_wep {
 	u32     Length;        /*  Length of this structure */
 	u32     KeyIndex;      /*  0 is the per-client key,
-				  * 1-N are the global keys */
+				* 1-N are the global keys
+				*/
 	u32     KeyLength;     /*  length of key in bytes */
 	u8     KeyMaterial[16];/*  variable len depending on above field */
 };
@@ -140,7 +142,8 @@ enum ndis_802_11_status_type {
 	Ndis802_11StatusType_MediaStreamMode,
 	Ndis802_11StatusType_PMKID_CandidateList,
 	Ndis802_11StatusTypeMax    /*  not a real type, defined as
-				    * an upper bound */
+				    * an upper bound
+				    */
 };
 
 /*  mask for authentication/integrity fields */
@@ -166,7 +169,8 @@ struct wlan_phy_info {
 
 struct wlan_bcn_info {
 	/* these infor get from rtw_get_encrypt_info when
-	 *	 * translate scan to UI */
+	 *	 * translate scan to UI
+	 */
 	u8 encryp_protocol;/* ENCRYP_PROTOCOL_E: OPEN/WEP/WPA/WPA2/WAPI */
 	int group_cipher; /* WPA/WPA2 group cipher */
 	int pairwise_cipher;/* WPA/WPA2/WEP pairwise cipher */
@@ -178,8 +182,8 @@ struct wlan_bcn_info {
 };
 
 /* temporally add #pragma pack for structure alignment issue of
-*   struct wlan_bssid_ex and get_struct wlan_bssid_ex_sz()
-*/
+ *   struct wlan_bssid_ex and get_struct wlan_bssid_ex_sz()
+ */
 struct wlan_bssid_ex {
 	u32  Length;
 	unsigned char MacAddress[ETH_ALEN];
@@ -194,7 +198,8 @@ struct wlan_bssid_ex {
 	struct wlan_phy_info	PhyInfo;
 	u32  IELength;
 	u8  IEs[MAX_IE_SZ];	/* timestamp, beacon interval, and
-				 * capability information) */
+				 * capability information)
+				 */
 } __packed;
 
 static inline uint get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss)
@@ -206,7 +211,8 @@ struct	wlan_network {
 	struct list_head list;
 	int	network_type;	/* refer to ieee80211.h for WIRELESS_11A/B/G */
 	int	fixed;		/*  set fixed when not to be removed
-				 *  in site-surveying */
+				 *  in site-surveying
+				 */
 	unsigned long	last_scanned; /* timestamp for the network */
 	int	aid;		/* will only be valid when a BSS is joinned. */
 	int	join_res;
diff --git a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
index bc756267c7fc..831c1ecc5e28 100644
--- a/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/mlme_linux.c
@@ -24,12 +24,10 @@ void rtw_init_mlme_timer(struct adapter *padapter)
 {
 	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	setup_timer(&pmlmepriv->assoc_timer, _rtw_join_timeout_handler,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmepriv->dynamic_chk_timer,
-		    rtw_dynamic_check_timer_handlder, (unsigned long)padapter);
+	timer_setup(&pmlmepriv->assoc_timer, _rtw_join_timeout_handler, 0);
+	timer_setup(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler, 0);
+	timer_setup(&pmlmepriv->dynamic_chk_timer,
+		    rtw_dynamic_check_timer_handlder, 0);
 }
 
 void rtw_os_indicate_connect(struct adapter *adapter)
@@ -125,18 +123,15 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 
 void init_addba_retry_timer(struct adapter *padapter, struct sta_info *psta)
 {
-	setup_timer(&psta->addba_retry_timer, addba_timer_hdl,
-		    (unsigned long)psta);
+	timer_setup(&psta->addba_retry_timer, addba_timer_hdl, 0);
 }
 
 void init_mlme_ext_timer(struct adapter *padapter)
 {
 	struct	mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 
-	setup_timer(&pmlmeext->survey_timer, survey_timer_hdl,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmeext->link_timer, link_timer_hdl,
-		    (unsigned long)padapter);
+	timer_setup(&pmlmeext->survey_timer, survey_timer_hdl, 0);
+	timer_setup(&pmlmeext->link_timer, link_timer_hdl, 0);
 }
 
 #ifdef CONFIG_88EU_AP_MODE
diff --git a/drivers/staging/rtl8188eu/os_dep/mon.c b/drivers/staging/rtl8188eu/os_dep/mon.c
index 37fd52d7364f..225c23fc69dc 100644
--- a/drivers/staging/rtl8188eu/os_dep/mon.c
+++ b/drivers/staging/rtl8188eu/os_dep/mon.c
@@ -66,34 +66,6 @@ static void mon_recv_decrypted(struct net_device *dev, const u8 *data,
 	netif_rx(skb);
 }
 
-static void mon_recv_decrypted_recv(struct net_device *dev, const u8 *data,
-				    int data_len)
-{
-	struct sk_buff *skb;
-	struct ieee80211_hdr *hdr;
-	int hdr_len;
-
-	skb = netdev_alloc_skb(dev, data_len);
-	if (!skb)
-		return;
-	memcpy(skb_put(skb, data_len), data, data_len);
-
-	/*
-	 * Frame data is not encrypted. Strip off protection so
-	 * userspace doesn't think that it is.
-	 */
-
-	hdr = (struct ieee80211_hdr *)skb->data;
-	hdr_len = ieee80211_hdrlen(hdr->frame_control);
-
-	if (ieee80211_has_protected(hdr->frame_control))
-		hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
-	skb->protocol = eth_type_trans(skb, dev);
-	netif_rx(skb);
-}
-
 static void mon_recv_encrypted(struct net_device *dev, const u8 *data,
 			       int data_len)
 {
@@ -110,6 +82,7 @@ static void mon_recv_encrypted(struct net_device *dev, const u8 *data,
 void rtl88eu_mon_recv_hook(struct net_device *dev, struct recv_frame *frame)
 {
 	struct rx_pkt_attrib *attr;
+	int iv_len, icv_len;
 	int data_len;
 	u8 *data;
 
@@ -122,8 +95,11 @@ void rtl88eu_mon_recv_hook(struct net_device *dev, struct recv_frame *frame)
 	data = frame->pkt->data;
 	data_len = frame->pkt->len;
 
+	/* Broadcast and multicast frames don't have attr->{iv,icv}_len set */
+	SET_ICE_IV_LEN(iv_len, icv_len, attr->encrypt);
+
 	if (attr->bdecrypted)
-		mon_recv_decrypted_recv(dev, data, data_len);
+		mon_recv_decrypted(dev, data, data_len, iv_len, icv_len);
 	else
 		mon_recv_encrypted(dev, data, data_len);
 }
diff --git a/drivers/staging/rtl8188eu/os_dep/recv_linux.c b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
index d14bc2b68d98..bda4ab879f58 100644
--- a/drivers/staging/rtl8188eu/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
@@ -155,7 +155,6 @@ _recv_indicatepkt_drop:
 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
 {
 
-	setup_timer(&preorder_ctrl->reordering_ctrl_timer,
-		    rtw_reordering_ctrl_timeout_handler,
-		    (unsigned long)preorder_ctrl);
+	timer_setup(&preorder_ctrl->reordering_ctrl_timer,
+		    rtw_reordering_ctrl_timeout_handler, 0);
 }
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
index 64397b6f1248..7e75030475f7 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_ops_linux.c
@@ -407,6 +407,7 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 		case -ENODEV:
 		case -ESHUTDOWN:
 			adapt->bSurpriseRemoved = true;
+			/* fall through */
 		case -ENOENT:
 			adapt->bDriverStopped = true;
 			RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete:bDriverStopped=true\n"));
diff --git a/drivers/staging/rtl8192e/Makefile b/drivers/staging/rtl8192e/Makefile
index 7101fcc8871b..6af519938868 100644
--- a/drivers/staging/rtl8192e/Makefile
+++ b/drivers/staging/rtl8192e/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 rtllib-objs :=			\
 	dot11d.o		\
 	rtllib_module.o		\
diff --git a/drivers/staging/rtl8192e/dot11d.c b/drivers/staging/rtl8192e/dot11d.c
index 017fe04ebe2d..88f89d77b511 100644
--- a/drivers/staging/rtl8192e/dot11d.c
+++ b/drivers/staging/rtl8192e/dot11d.c
@@ -128,12 +128,16 @@ void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
 	pTriple = (struct chnl_txpow_triple *)(pCoutryIe + 3);
 	for (i = 0; i < NumTriples; i++) {
 		if (MaxChnlNum >= pTriple->FirstChnl) {
-			netdev_info(dev->dev, "Dot11d_UpdateCountryIe(): Invalid country IE, skip it........1\n");
+			netdev_info(dev->dev,
+				    "%s: Invalid country IE, skip it......1\n",
+				    __func__);
 			return;
 		}
 		if (MAX_CHANNEL_NUMBER < (pTriple->FirstChnl +
 		    pTriple->NumChnls)) {
-			netdev_info(dev->dev, "Dot11d_UpdateCountryIe(): Invalid country IE, skip it........2\n");
+			netdev_info(dev->dev,
+				    "%s: Invalid country IE, skip it......2\n",
+				    __func__);
 			return;
 		}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/Makefile b/drivers/staging/rtl8192e/rtl8192e/Makefile
index 176a4a2b8b20..75e6ec510555 100644
--- a/drivers/staging/rtl8192e/rtl8192e/Makefile
+++ b/drivers/staging/rtl8192e/rtl8192e/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 r8192e_pci-objs :=		\
 	r8192E_dev.o		\
 	r8192E_phy.o		\
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index aca52654825b..d2605158546b 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -85,7 +85,7 @@ static struct pci_driver rtl8192_pci_driver = {
 
 static short _rtl92e_is_tx_queue_empty(struct net_device *dev);
 static void _rtl92e_watchdog_wq_cb(void *data);
-static void _rtl92e_watchdog_timer_cb(unsigned long data);
+static void _rtl92e_watchdog_timer_cb(struct timer_list *t);
 static void _rtl92e_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 				   int rate);
 static int _rtl92e_hard_start_xmit(struct sk_buff *skb, struct net_device *dev);
@@ -766,12 +766,12 @@ static int _rtl92e_sta_up(struct net_device *dev, bool is_silent_reset)
 	priv->bfirst_init = false;
 
 	if (priv->polling_timer_on == 0)
-		rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
+		rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
 
 	if (priv->rtllib->state != RTLLIB_LINKED)
 		rtllib_softmac_start_protocol(priv->rtllib, 0);
 	rtllib_reset_queue(priv->rtllib);
-	_rtl92e_watchdog_timer_cb((unsigned long)dev);
+	_rtl92e_watchdog_timer_cb(&priv->watch_dog_timer);
 
 	if (!netif_queue_stopped(dev))
 		netif_start_queue(dev);
@@ -1075,13 +1075,10 @@ static short _rtl92e_init(struct net_device *dev)
 
 	rtl92e_dm_init(dev);
 
-	setup_timer(&priv->watch_dog_timer,
-		    _rtl92e_watchdog_timer_cb,
-		    (unsigned long)dev);
+	timer_setup(&priv->watch_dog_timer, _rtl92e_watchdog_timer_cb, 0);
 
-	setup_timer(&priv->gpio_polling_timer,
-		    rtl92e_check_rfctrl_gpio_timer,
-		    (unsigned long)dev);
+	timer_setup(&priv->gpio_polling_timer, rtl92e_check_rfctrl_gpio_timer,
+		    0);
 
 	rtl92e_irq_disable(dev);
 	if (request_irq(dev->irq, _rtl92e_irq, IRQF_SHARED, dev->name, dev)) {
@@ -1531,9 +1528,9 @@ static void _rtl92e_watchdog_wq_cb(void *data)
 	RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
 }
 
-static void _rtl92e_watchdog_timer_cb(unsigned long data)
+static void _rtl92e_watchdog_timer_cb(struct timer_list *t)
 {
-	struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
+	struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
 
 	schedule_delayed_work(&priv->watch_dog_wq, 0);
 	mod_timer(&priv->watch_dog_timer, jiffies +
@@ -2535,7 +2532,7 @@ static int _rtl92e_pci_probe(struct pci_dev *pdev,
 	RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
 
 	if (priv->polling_timer_on == 0)
-		rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
+		rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
 
 	RT_TRACE(COMP_INIT, "Driver probe completed\n");
 	return 0;
@@ -2648,9 +2645,9 @@ bool rtl92e_disable_nic(struct net_device *dev)
 
 module_pci_driver(rtl8192_pci_driver);
 
-void rtl92e_check_rfctrl_gpio_timer(unsigned long data)
+void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t)
 {
-	struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
+	struct r8192_priv *priv = from_timer(priv, t, gpio_polling_timer);
 
 	priv->polling_timer_on = 1;
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index 9d3089cb6a5a..866fe4d4cb28 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -587,7 +587,7 @@ void rtl92e_tx_enable(struct net_device *);
 void rtl92e_hw_sleep_wq(void *data);
 void rtl92e_commit(struct net_device *dev);
 
-void rtl92e_check_rfctrl_gpio_timer(unsigned long data);
+void rtl92e_check_rfctrl_gpio_timer(struct timer_list *t);
 
 void rtl92e_hw_wakeup_wq(void *data);
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index b8205ebafd72..9bf95bd0ad13 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -196,7 +196,7 @@ static	void _rtl92e_dm_check_txrateandretrycount(struct net_device *dev);
 static  void _rtl92e_dm_check_ac_dc_power(struct net_device *dev);
 static void _rtl92e_dm_check_fsync(struct net_device *dev);
 static void _rtl92e_dm_check_rf_ctrl_gpio(void *data);
-static void _rtl92e_dm_fsync_timer_callback(unsigned long data);
+static void _rtl92e_dm_fsync_timer_callback(struct timer_list *t);
 
 /*---------------------Define local function prototype-----------------------*/
 
@@ -2125,8 +2125,7 @@ static void _rtl92e_dm_init_fsync(struct net_device *dev)
 	priv->rtllib->fsync_state = Default_Fsync;
 	priv->framesyncMonitor = 1;
 
-	setup_timer(&priv->fsync_timer, _rtl92e_dm_fsync_timer_callback,
-		    (unsigned long)dev);
+	timer_setup(&priv->fsync_timer, _rtl92e_dm_fsync_timer_callback, 0);
 }
 
 
@@ -2137,10 +2136,10 @@ static void _rtl92e_dm_deinit_fsync(struct net_device *dev)
 	del_timer_sync(&priv->fsync_timer);
 }
 
-static void _rtl92e_dm_fsync_timer_callback(unsigned long data)
+static void _rtl92e_dm_fsync_timer_callback(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct r8192_priv *priv = rtllib_priv((struct net_device *)data);
+	struct r8192_priv *priv = from_timer(priv, t, fsync_timer);
+	struct net_device *dev = priv->rtllib->dev;
 	u32 rate_index, rate_count = 0, rate_count_diff = 0;
 	bool		bSwitchFromCountDiff = false;
 	bool		bDoubleTimeInterval = false;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
index 3e3273d3e043..81a68b0b4a7f 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
@@ -91,7 +91,7 @@ int rtl92e_resume(struct pci_dev *pdev)
 	pci_enable_wake(pdev, PCI_D0, 0);
 
 	if (priv->polling_timer_on == 0)
-		rtl92e_check_rfctrl_gpio_timer((unsigned long)dev);
+		rtl92e_check_rfctrl_gpio_timer(&priv->gpio_polling_timer);
 
 	if (!netif_running(dev)) {
 		netdev_info(dev,
diff --git a/drivers/staging/rtl8192e/rtl819x_BAProc.c b/drivers/staging/rtl8192e/rtl819x_BAProc.c
index 1720e1b6ae04..eb6d841f7c45 100644
--- a/drivers/staging/rtl8192e/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_BAProc.c
@@ -528,18 +528,20 @@ void TsInitDelBA(struct rtllib_device *ieee,
 	}
 }
 
-void BaSetupTimeOut(unsigned long data)
+void BaSetupTimeOut(struct timer_list *t)
 {
-	struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
+	struct tx_ts_record *pTxTs = from_timer(pTxTs, t,
+					      TxPendingBARecord.Timer);
 
 	pTxTs->bAddBaReqInProgress = false;
 	pTxTs->bAddBaReqDelayed = true;
 	pTxTs->TxPendingBARecord.bValid = false;
 }
 
-void TxBaInactTimeout(unsigned long data)
+void TxBaInactTimeout(struct timer_list *t)
 {
-	struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
+	struct tx_ts_record *pTxTs = from_timer(pTxTs, t,
+					      TxAdmittedBARecord.Timer);
 	struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
 				     TxTsRecord[pTxTs->num]);
 	TxTsDeleteBA(ieee, pTxTs);
@@ -548,9 +550,10 @@ void TxBaInactTimeout(unsigned long data)
 			  DELBA_REASON_TIMEOUT);
 }
 
-void RxBaInactTimeout(unsigned long data)
+void RxBaInactTimeout(struct timer_list *t)
 {
-	struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
+	struct rx_ts_record *pRxTs = from_timer(pRxTs, t,
+					      RxAdmittedBARecord.Timer);
 	struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
 				     RxTsRecord[pRxTs->num]);
 
diff --git a/drivers/staging/rtl8192e/rtl819x_TSProc.c b/drivers/staging/rtl8192e/rtl819x_TSProc.c
index dcc4eb691889..f839d2447b85 100644
--- a/drivers/staging/rtl8192e/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_TSProc.c
@@ -16,17 +16,18 @@
 #include <linux/etherdevice.h>
 #include "rtl819x_TS.h"
 
-static void TsSetupTimeOut(unsigned long data)
+static void TsSetupTimeOut(struct timer_list *unused)
 {
 }
 
-static void TsInactTimeout(unsigned long data)
+static void TsInactTimeout(struct timer_list *unused)
 {
 }
 
-static void RxPktPendingTimeout(unsigned long data)
+static void RxPktPendingTimeout(struct timer_list *t)
 {
-	struct rx_ts_record *pRxTs = (struct rx_ts_record *)data;
+	struct rx_ts_record *pRxTs = from_timer(pRxTs, t,
+						     RxPktPendingTimer);
 	struct rtllib_device *ieee = container_of(pRxTs, struct rtllib_device,
 						  RxTsRecord[pRxTs->num]);
 
@@ -96,9 +97,9 @@ static void RxPktPendingTimeout(unsigned long data)
 	spin_unlock_irqrestore(&(ieee->reorder_spinlock), flags);
 }
 
-static void TsAddBaProcess(unsigned long data)
+static void TsAddBaProcess(struct timer_list *t)
 {
-	struct tx_ts_record *pTxTs = (struct tx_ts_record *)data;
+	struct tx_ts_record *pTxTs = from_timer(pTxTs, t, TsAddBaTimer);
 	u8 num = pTxTs->num;
 	struct rtllib_device *ieee = container_of(pTxTs, struct rtllib_device,
 				     TxTsRecord[num]);
@@ -150,24 +151,18 @@ void TSInitialize(struct rtllib_device *ieee)
 
 	for (count = 0; count < TOTAL_TS_NUM; count++) {
 		pTxTS->num = count;
-		setup_timer(&pTxTS->TsCommonInfo.SetupTimer,
-			    TsSetupTimeOut,
-			    (unsigned long) pTxTS);
+		timer_setup(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
+			    0);
 
-		setup_timer(&pTxTS->TsCommonInfo.InactTimer,
-			    TsInactTimeout,
-			    (unsigned long) pTxTS);
+		timer_setup(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
+			    0);
 
-		setup_timer(&pTxTS->TsAddBaTimer,
-			    TsAddBaProcess,
-			    (unsigned long) pTxTS);
+		timer_setup(&pTxTS->TsAddBaTimer, TsAddBaProcess, 0);
 
-		setup_timer(&pTxTS->TxPendingBARecord.Timer,
-			    BaSetupTimeOut,
-			    (unsigned long) pTxTS);
-		setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
-			    TxBaInactTimeout,
-			    (unsigned long) pTxTS);
+		timer_setup(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
+			    0);
+		timer_setup(&pTxTS->TxAdmittedBARecord.Timer,
+			    TxBaInactTimeout, 0);
 
 		ResetTxTsEntry(pTxTS);
 		list_add_tail(&pTxTS->TsCommonInfo.List,
@@ -182,21 +177,16 @@ void TSInitialize(struct rtllib_device *ieee)
 		pRxTS->num = count;
 		INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
 
-		setup_timer(&pRxTS->TsCommonInfo.SetupTimer,
-			    TsSetupTimeOut,
-			    (unsigned long) pRxTS);
+		timer_setup(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
+			    0);
 
-		setup_timer(&pRxTS->TsCommonInfo.InactTimer,
-			    TsInactTimeout,
-			    (unsigned long) pRxTS);
+		timer_setup(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
+			    0);
 
-		setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
-			    RxBaInactTimeout,
-			    (unsigned long) pRxTS);
+		timer_setup(&pRxTS->RxAdmittedBARecord.Timer,
+			    RxBaInactTimeout, 0);
 
-		setup_timer(&pRxTS->RxPktPendingTimer,
-			    RxPktPendingTimeout,
-			    (unsigned long) pRxTS);
+		timer_setup(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout, 0);
 
 		ResetRxTsEntry(pRxTS);
 		list_add_tail(&pRxTS->TsCommonInfo.List,
diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index 0042a0f6cf79..c01474a6db1e 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -2113,9 +2113,9 @@ void TsInitAddBA(struct rtllib_device *ieee, struct tx_ts_record *pTS,
 void TsInitDelBA(struct rtllib_device *ieee,
 		 struct ts_common_info *pTsCommonInfo,
 		 enum tr_select TxRxSelect);
-void BaSetupTimeOut(unsigned long data);
-void TxBaInactTimeout(unsigned long data);
-void RxBaInactTimeout(unsigned long data);
+void BaSetupTimeOut(struct timer_list *t);
+void TxBaInactTimeout(struct timer_list *t);
+void RxBaInactTimeout(struct timer_list *t);
 void ResetBaEntry(struct ba_record *pBA);
 bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS, u8 *Addr,
 	   u8 TID, enum tr_select TxRxSelect, bool bAddNewTs);
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index e4be85af31e7..c2b9ffba354a 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -393,10 +393,10 @@ static void rtllib_send_beacon(struct rtllib_device *ieee)
 }
 
 
-static void rtllib_send_beacon_cb(unsigned long _ieee)
+static void rtllib_send_beacon_cb(struct timer_list *t)
 {
 	struct rtllib_device *ieee =
-		(struct rtllib_device *) _ieee;
+		from_timer(ieee, t, beacon_timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ieee->beacon_lock, flags);
@@ -1427,9 +1427,11 @@ static void rtllib_associate_abort(struct rtllib_device *ieee)
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
 
-static void rtllib_associate_abort_cb(unsigned long dev)
+static void rtllib_associate_abort_cb(struct timer_list *t)
 {
-	rtllib_associate_abort((struct rtllib_device *) dev);
+	struct rtllib_device *dev = from_timer(dev, t, associate_timer);
+
+	rtllib_associate_abort(dev);
 }
 
 static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
@@ -2811,8 +2813,9 @@ exit:
 
 static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
 {
-	const u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
-
+	static const u8 broadcast_addr[] = {
+		0xff, 0xff, 0xff, 0xff, 0xff, 0xff
+	};
 	struct sk_buff *skb;
 	struct rtllib_probe_response *b;
 
@@ -3011,13 +3014,9 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 
 	ieee->tx_pending.txb = NULL;
 
-	setup_timer(&ieee->associate_timer,
-		    rtllib_associate_abort_cb,
-		    (unsigned long) ieee);
+	timer_setup(&ieee->associate_timer, rtllib_associate_abort_cb, 0);
 
-	setup_timer(&ieee->beacon_timer,
-		    rtllib_send_beacon_cb,
-		    (unsigned long) ieee);
+	timer_setup(&ieee->beacon_timer, rtllib_send_beacon_cb, 0);
 
 	INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
 			      (void *)rtllib_link_change_wq, ieee);
diff --git a/drivers/staging/rtl8192e/rtllib_wx.c b/drivers/staging/rtl8192e/rtllib_wx.c
index f7eba01b5d15..03fbff067fa4 100644
--- a/drivers/staging/rtl8192e/rtllib_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_wx.c
@@ -694,8 +694,7 @@ int rtllib_wx_set_mlme(struct rtllib_device *ieee,
 	switch (mlme->cmd) {
 	case IW_MLME_DEAUTH:
 		deauth = true;
-		/* leave break out intentionly */
-
+		/* fall through */
 	case IW_MLME_DISASSOC:
 		if (deauth)
 			netdev_info(ieee->dev, "disauth packet !\n");
diff --git a/drivers/staging/rtl8192u/Makefile b/drivers/staging/rtl8192u/Makefile
index 703c1505ea5f..3022728a364c 100644
--- a/drivers/staging/rtl8192u/Makefile
+++ b/drivers/staging/rtl8192u/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 NIC_SELECT = RTL8192U
 
 ccflags-y := -std=gnu89
diff --git a/drivers/staging/rtl8192u/ieee80211/Makefile b/drivers/staging/rtl8192u/ieee80211/Makefile
index 9e3f432e5355..0d4d6489f767 100644
--- a/drivers/staging/rtl8192u/ieee80211/Makefile
+++ b/drivers/staging/rtl8192u/ieee80211/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 NIC_SELECT = RTL8192U
 
 ccflags-y := -O2
diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.c b/drivers/staging/rtl8192u/ieee80211/dot11d.c
index 00b6052fbbac..64b13a5da3cb 100644
--- a/drivers/staging/rtl8192u/ieee80211/dot11d.c
+++ b/drivers/staging/rtl8192u/ieee80211/dot11d.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Implement 802.11d. */
 
 #include "dot11d.h"
diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.h b/drivers/staging/rtl8192u/ieee80211/dot11d.h
index 8ae673b217d8..88bc298305bd 100644
--- a/drivers/staging/rtl8192u/ieee80211/dot11d.h
+++ b/drivers/staging/rtl8192u/ieee80211/dot11d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INC_DOT11D_H
 #define __INC_DOT11D_H
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
index b062cad052b9..3addaa65085a 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
@@ -323,7 +323,7 @@ typedef struct ieee_param {
 			u8 key[0];
 		} crypt;
 	} u;
-}ieee_param;
+} ieee_param;
 
 
 // linux under 2.6.9 release may not support it, so modify it for common use
@@ -412,15 +412,15 @@ typedef struct ieee_param {
 #define IEEE80211_QCTL_TID              0x000F
 
 #define	FC_QOS_BIT					BIT(7)
-#define IsDataFrame(pdu)			( ((pdu[0] & 0x0C)==0x08) ? true : false )
-#define	IsLegacyDataFrame(pdu)	(IsDataFrame(pdu) && (!(pdu[0]&FC_QOS_BIT)) )
+#define IsDataFrame(pdu)			(((pdu[0] & 0x0C) == 0x08) ? true : false)
+#define	IsLegacyDataFrame(pdu)	(IsDataFrame(pdu) && (!(pdu[0] & FC_QOS_BIT)))
 //added by wb. Is this right?
-#define IsQoSDataFrame(pframe)  ((*(u16 *)pframe&(IEEE80211_STYPE_QOS_DATA|IEEE80211_FTYPE_DATA)) == (IEEE80211_STYPE_QOS_DATA|IEEE80211_FTYPE_DATA))
-#define Frame_Order(pframe)     (*(u16 *)pframe&IEEE80211_FCTL_ORDER)
-#define SN_LESS(a, b)		(((a-b)&0x800)!=0)
+#define IsQoSDataFrame(pframe)  ((*(u16 *)pframe & (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA)) == (IEEE80211_STYPE_QOS_DATA | IEEE80211_FTYPE_DATA))
+#define Frame_Order(pframe)     (*(u16 *)pframe & IEEE80211_FCTL_ORDER)
+#define SN_LESS(a, b)		(((a - b) & 0x800) != 0)
 #define SN_EQUAL(a, b)	(a == b)
 #define MAX_DEV_ADDR_SIZE 8
-typedef enum _ACT_CATEGORY{
+typedef enum _ACT_CATEGORY {
 	ACT_CAT_QOS = 1,
 	ACT_CAT_DLS = 2,
 	ACT_CAT_BA  = 3,
@@ -428,24 +428,24 @@ typedef enum _ACT_CATEGORY{
 	ACT_CAT_WMM = 17,
 } ACT_CATEGORY, *PACT_CATEGORY;
 
-typedef enum _TS_ACTION{
+typedef enum _TS_ACTION {
 	ACT_ADDTSREQ = 0,
 	ACT_ADDTSRSP = 1,
 	ACT_DELTS    = 2,
 	ACT_SCHEDULE = 3,
 } TS_ACTION, *PTS_ACTION;
 
-typedef enum _BA_ACTION{
+typedef enum _BA_ACTION {
 	ACT_ADDBAREQ = 0,
 	ACT_ADDBARSP = 1,
 	ACT_DELBA    = 2,
 } BA_ACTION, *PBA_ACTION;
 
-typedef enum _InitialGainOpType{
-	IG_Backup=0,
+typedef enum _InitialGainOpType {
+	IG_Backup = 0,
 	IG_Restore,
 	IG_Max
-}InitialGainOpType;
+} InitialGainOpType;
 
 /* debug macros */
 #define CONFIG_IEEE80211_DEBUG
@@ -457,22 +457,22 @@ do { if (ieee80211_debug_level & (level)) \
 //wb added to debug out data buf
 //if you want print DATA buffer related BA, please set ieee80211_debug_level to DATA|BA
 #define IEEE80211_DEBUG_DATA(level, data, datalen)	\
-	do{ if ((ieee80211_debug_level & (level)) == (level))	\
+	do { if ((ieee80211_debug_level & (level)) == (level))	\
 		{	\
 			int i;					\
 			u8 *pdata = (u8 *) data;			\
 			printk(KERN_DEBUG "ieee80211: %s()\n", __func__);	\
-			for(i=0; i<(int)(datalen); i++)			\
+			for (i = 0; i < (int)(datalen); i++)			\
 			{						\
 				printk("%2x ", pdata[i]);		\
-				if ((i+1)%16 == 0) printk("\n");	\
+				if ((i + 1) % 16 == 0) printk("\n");	\
 			}				\
 			printk("\n");			\
 		}					\
 	} while (0)
 #else
-#define IEEE80211_DEBUG(level, fmt, args...) do {} while (0)
-#define IEEE80211_DEBUG_DATA(level, data, datalen) do {} while(0)
+#define IEEE80211_DEBUG (level, fmt, args...) do {} while (0)
+#define IEEE80211_DEBUG_DATA (level, data, datalen) do {} while(0)
 #endif	/* CONFIG_IEEE80211_DEBUG */
 
 /* debug macros not dependent on CONFIG_IEEE80211_DEBUG */
@@ -876,9 +876,9 @@ enum ieee80211_mfie {
 	MFIE_TYPE_ERP = 42,
 	MFIE_TYPE_RSN = 48,
 	MFIE_TYPE_RATES_EX = 50,
-	MFIE_TYPE_HT_CAP= 45,
-	 MFIE_TYPE_HT_INFO= 61,
-	 MFIE_TYPE_AIRONET=133,
+	MFIE_TYPE_HT_CAP = 45,
+	 MFIE_TYPE_HT_INFO = 61,
+	 MFIE_TYPE_AIRONET = 133,
 	MFIE_TYPE_GENERIC = 221,
 	MFIE_TYPE_QOS_PARAMETER = 222,
 };
@@ -1051,7 +1051,7 @@ typedef union _frameqos {
 		u16 ack_policy:2;
 		u16 reserved:1;
 		u16 txop:8;
-	}field;
+	} field;
 } frameqos, *pframeqos;
 
 /* SWEEP TABLE ENTRIES NUMBER*/
@@ -1196,7 +1196,7 @@ static inline u8 Frame_QoSTID(u8 *buf)
 	u16 fc;
 	hdr = (struct rtl_80211_hdr_3addr *)buf;
 	fc = le16_to_cpu(hdr->frame_ctl);
-	return (u8)((frameqos *)(buf + (((fc & IEEE80211_FCTL_TODS)&&(fc & IEEE80211_FCTL_FROMDS))? 30 : 24)))->field.tid;
+	return (u8)((frameqos *)(buf + (((fc & IEEE80211_FCTL_TODS) && (fc & IEEE80211_FCTL_FROMDS)) ? 30 : 24)))->field.tid;
 }
 
 //added by amy for reorder
@@ -1209,7 +1209,7 @@ struct eapol {
 	u16 length;
 } __packed;
 
-struct ieee80211_softmac_stats{
+struct ieee80211_softmac_stats {
 	unsigned int rx_ass_ok;
 	unsigned int rx_ass_err;
 	unsigned int rx_probe_rq;
@@ -1320,7 +1320,7 @@ struct	ether_header {
 #define	ETHERTYPE_IP	0x0800		/* IP protocol */
 #endif
 
-typedef enum _erp_t{
+typedef enum _erp_t {
 	ERP_NonERPpresent	= 0x01,
 	ERP_UseProtection	= 0x02,
 	ERP_BarkerPreambleMode = 0x04,
@@ -1479,37 +1479,35 @@ typedef struct _RX_REORDER_ENTRY {
 	struct ieee80211_rxb *prxb;
 } RX_REORDER_ENTRY, *PRX_REORDER_ENTRY;
 //added by amy for order
-typedef enum _Fsync_State{
+typedef enum _Fsync_State {
 	Default_Fsync,
 	HW_Fsync,
 	SW_Fsync
-}Fsync_State;
+} Fsync_State;
 
 // Power save mode configured.
-typedef	enum _RT_PS_MODE
-{
+typedef	enum _RT_PS_MODE {
 	eActive,	// Active/Continuous access.
 	eMaxPs,		// Max power save mode.
 	eFastPs		// Fast power save mode.
-}RT_PS_MODE;
+} RT_PS_MODE;
 
-typedef enum _IPS_CALLBACK_FUNCION
-{
+typedef enum _IPS_CALLBACK_FUNCION {
 	IPS_CALLBACK_NONE = 0,
 	IPS_CALLBACK_MGNT_LINK_REQUEST = 1,
 	IPS_CALLBACK_JOIN_REQUEST = 2,
-}IPS_CALLBACK_FUNCION;
+} IPS_CALLBACK_FUNCION;
 
-typedef enum _RT_JOIN_ACTION{
+typedef enum _RT_JOIN_ACTION {
 	RT_JOIN_INFRA   = 1,
 	RT_JOIN_IBSS  = 2,
 	RT_START_IBSS = 3,
 	RT_NO_ACTION  = 4,
-}RT_JOIN_ACTION;
+} RT_JOIN_ACTION;
 
-typedef struct _IbssParms{
+typedef struct _IbssParms {
 	u16   atimWin;
-}IbssParms, *PIbssParms;
+} IbssParms, *PIbssParms;
 #define MAX_NUM_RATES	264 // Max num of support rates element: 8,  Max num of ext. support rate: 255. 061122, by rcnjko.
 
 // RF state.
@@ -1517,7 +1515,7 @@ typedef	enum _RT_RF_POWER_STATE {
 	eRfOn,
 	eRfSleep,
 	eRfOff
-}RT_RF_POWER_STATE;
+} RT_RF_POWER_STATE;
 
 typedef struct _RT_POWER_SAVE_CONTROL {
 
@@ -1572,8 +1570,7 @@ typedef u32 RT_RF_CHANGE_SOURCE;
 #define RF_CHANGE_BY_IPS	BIT(28)
 #define RF_CHANGE_BY_INIT	0	// Do not change the RFOff reason. Defined by Bruce, 2008-01-17.
 
-typedef enum
-{
+typedef enum {
 	COUNTRY_CODE_FCC = 0,
 	COUNTRY_CODE_IC = 1,
 	COUNTRY_CODE_ETSI = 2,
@@ -1585,10 +1582,10 @@ typedef enum
 	COUNTRY_CODE_TELEC,
 	COUNTRY_CODE_MIC,
 	COUNTRY_CODE_GLOBAL_DOMAIN
-}country_code_type_t;
+} country_code_type_t;
 
 #define RT_MAX_LD_SLOT_NUM	10
-typedef struct _RT_LINK_DETECT_T{
+typedef struct _RT_LINK_DETECT_T {
 
 	u32				NumRecvBcnInPeriod;
 	u32				NumRecvDataInPeriod;
@@ -1601,7 +1598,7 @@ typedef struct _RT_LINK_DETECT_T{
 	u32				NumTxOkInPeriod;
 	u32				NumRxOkInPeriod;
 	bool				bBusyTraffic;
-}RT_LINK_DETECT_T, *PRT_LINK_DETECT_T;
+} RT_LINK_DETECT_T, *PRT_LINK_DETECT_T;
 
 
 struct ieee80211_device {
@@ -1917,11 +1914,11 @@ struct ieee80211_device {
 			       struct net_device *dev);
 
 	int (*reset_port)(struct net_device *dev);
-	int (*is_queue_full) (struct net_device *dev, int pri);
+	int (*is_queue_full)(struct net_device *dev, int pri);
 
-	int (*handle_management) (struct net_device *dev,
+	int (*handle_management)(struct net_device *dev,
 				  struct ieee80211_network *network, u16 type);
-	int (*is_qos_active) (struct net_device *dev, struct sk_buff *skb);
+	int (*is_qos_active)(struct net_device *dev, struct sk_buff *skb);
 
 	/* Softmac-generated frames (management) are TXed via this
 	 * callback if the flag IEEE_SOFTMAC_SINGLE_QUEUE is
@@ -1989,16 +1986,16 @@ struct ieee80211_device {
 	 * stop_send_bacons is NOT guaranteed to be called only
 	 * after start_send_beacons.
 	 */
-	void (*start_send_beacons) (struct net_device *dev,u16 tx_rate);
-	void (*stop_send_beacons) (struct net_device *dev);
+	void (*start_send_beacons)(struct net_device *dev, u16 tx_rate);
+	void (*stop_send_beacons)(struct net_device *dev);
 
 	/* power save mode related */
-	void (*sta_wake_up) (struct net_device *dev);
-	void (*ps_request_tx_ack) (struct net_device *dev);
-	void (*enter_sleep_state) (struct net_device *dev, u32 th, u32 tl);
-	short (*ps_is_queue_empty) (struct net_device *dev);
-	int (*handle_beacon) (struct net_device *dev, struct ieee80211_beacon *beacon, struct ieee80211_network *network);
-	int (*handle_assoc_response) (struct net_device *dev, struct ieee80211_assoc_response_frame *resp, struct ieee80211_network *network);
+	void (*sta_wake_up)(struct net_device *dev);
+	void (*ps_request_tx_ack)(struct net_device *dev);
+	void (*enter_sleep_state)(struct net_device *dev, u32 th, u32 tl);
+	short (*ps_is_queue_empty)(struct net_device *dev);
+	int (*handle_beacon)(struct net_device *dev, struct ieee80211_beacon *beacon, struct ieee80211_network *network);
+	int (*handle_assoc_response)(struct net_device *dev, struct ieee80211_assoc_response_frame *resp, struct ieee80211_network *network);
 
 
 	/* check whether Tx hw resource available */
@@ -2023,7 +2020,7 @@ struct ieee80211_device {
 #define IEEE_G            (1<<2)
 #define IEEE_N_24G		  (1<<4)
 #define	IEEE_N_5G		  (1<<5)
-#define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
+#define IEEE_MODE_MASK    (IEEE_A | IEEE_B | IEEE_G)
 
 /* Generate a 802.11 header */
 
@@ -2112,7 +2109,7 @@ static inline int ieee80211_get_hdrlen(u16 fc)
 	case IEEE80211_FTYPE_DATA:
 		if ((fc & IEEE80211_FCTL_FROMDS) && (fc & IEEE80211_FCTL_TODS))
 			hdrlen = IEEE80211_4ADDR_LEN; /* Addr4 */
-		if(IEEE80211_QOS_HAS_SEQ(fc))
+		if (IEEE80211_QOS_HAS_SEQ(fc))
 			hdrlen += 2; /* QOS ctrl*/
 		break;
 	case IEEE80211_FTYPE_CTL:
@@ -2379,7 +2376,7 @@ void HTUpdateSelfAndPeerSetting(struct ieee80211_device *ieee,
 u8 HTGetHighestMCSRate(struct ieee80211_device *ieee,
 		       u8 *pMCSRateSet, u8 *pMCSFilter);
 extern u8 MCS_FILTER_ALL[];
-extern u16 MCS_DATA_RATE[2][2][77] ;
+extern u16 MCS_DATA_RATE[2][2][77];
 u8 HTCCheck(struct ieee80211_device *ieee, u8 *pFrame);
 //extern void HTSetConnectBwModeCallback(unsigned long data);
 void HTResetIOTSetting(PRT_HIGH_THROUGHPUT pHTInfo);
@@ -2395,9 +2392,9 @@ void TsInitAddBA(struct ieee80211_device *ieee, PTX_TS_RECORD pTS,
 		 u8 Policy, u8 bOverwritePending);
 void TsInitDelBA(struct ieee80211_device *ieee,
 		 PTS_COMMON_INFO pTsCommonInfo, TR_SELECT TxRxSelect);
-void BaSetupTimeOut(unsigned long data);
-void TxBaInactTimeout(unsigned long data);
-void RxBaInactTimeout(unsigned long data);
+void BaSetupTimeOut(struct timer_list *t);
+void TxBaInactTimeout(struct timer_list *t);
+void RxBaInactTimeout(struct timer_list *t);
 void ResetBaEntry(PBA_RECORD pBA);
 //function in TS.c
 bool GetTs(
@@ -2426,7 +2423,8 @@ static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
 	return ieee->scans;
 }
 
-static inline const char *escape_essid(const char *essid, u8 essid_len) {
+static inline const char *escape_essid(const char *essid, u8 essid_len)
+{
 	static char escaped[IW_ESSID_MAX_SIZE * 2 + 1];
 
 	if (ieee80211_is_empty_essid(essid, essid_len)) {
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
index 48e80be90ba5..6f457812e5a3 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.c
@@ -57,9 +57,9 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee,
 	}
 }
 
-void ieee80211_crypt_deinit_handler(unsigned long data)
+void ieee80211_crypt_deinit_handler(struct timer_list *t)
 {
-	struct ieee80211_device *ieee = (struct ieee80211_device *)data;
+	struct ieee80211_device *ieee = from_timer(ieee, t, crypt_deinit_timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&ieee->lock, flags);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.h b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.h
index a0aa0f5be63a..1f2aea7e0e55 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.h
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_crypt.h
@@ -83,7 +83,7 @@ int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops);
 int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops);
 struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name);
 void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force);
-void ieee80211_crypt_deinit_handler(unsigned long data);
+void ieee80211_crypt_deinit_handler(struct timer_list *t);
 void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
 				    struct ieee80211_crypt_data **crypt);
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index 8f236b332a47..90a097f2cd4e 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@ -133,8 +133,8 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 	ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
 
 	INIT_LIST_HEAD(&ieee->crypt_deinit_list);
-	setup_timer(&ieee->crypt_deinit_timer,
-		    ieee80211_crypt_deinit_handler, (unsigned long)ieee);
+	timer_setup(&ieee->crypt_deinit_timer, ieee80211_crypt_deinit_handler,
+		    0);
 
 	spin_lock_init(&ieee->lock);
 	spin_lock_init(&ieee->wpax_suitlist_lock);
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index fe6f38b7ec35..4e7908322d77 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -2948,8 +2948,9 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 				  struct ieee_param *param, int param_len)
 {
 	int ret = 0;
+	const char *module = NULL;
 
-	struct ieee80211_crypto_ops *ops;
+	struct ieee80211_crypto_ops *ops = NULL;
 	struct ieee80211_crypt_data **crypt;
 
 	struct ieee80211_security sec = {
@@ -2995,19 +2996,17 @@ static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
 	    strcmp(param->u.crypt.alg, "TKIP"))
 		goto skip_host_crypt;
 
-	ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-	if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
-		request_module("ieee80211_crypt_wep");
-		ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-		//set WEP40 first, it will be modified according to WEP104 or WEP40 at other place
-	} else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
-		request_module("ieee80211_crypt_tkip");
-		ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-	} else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
-		request_module("ieee80211_crypt_ccmp");
-		ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
-	}
-	if (ops == NULL) {
+	//set WEP40 first, it will be modified according to WEP104 or WEP40 at other place
+	if (!strcmp(param->u.crypt.alg, "WEP"))
+		module = "ieee80211_crypt_wep";
+	else if (!strcmp(param->u.crypt.alg, "TKIP"))
+		module = "ieee80211_crypt_tkip";
+	else if (!strcmp(param->u.crypt.alg, "CCMP"))
+		module = "ieee80211_crypt_ccmp";
+	if (module)
+		ops = try_then_request_module(ieee80211_get_crypto_ops(param->u.crypt.alg),
+					      module);
+	if (!ops) {
 		printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
 		param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
 		ret = -EINVAL;
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index f58971a4a2e3..9a1a84548bc6 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -302,7 +302,6 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 	}
 }
 
-#define SN_LESS(a, b)		(((a-b)&0x800)!=0)
 static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee,
 				       struct sk_buff *skb, struct cb_desc *tcb_desc)
 {
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index c925e53bf013..f2fcdec9bd17 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -364,11 +364,8 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 				    GFP_KERNEL);
 		if (!new_crypt)
 			return -ENOMEM;
-		new_crypt->ops = ieee80211_get_crypto_ops("WEP");
-		if (!new_crypt->ops) {
-			request_module("ieee80211_crypt_wep");
-			new_crypt->ops = ieee80211_get_crypto_ops("WEP");
-		}
+		new_crypt->ops = try_then_request_module(ieee80211_get_crypto_ops("WEP"),
+							 "ieee80211_crypt_wep");
 		if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
 			new_crypt->priv = new_crypt->ops->init(key);
 
@@ -591,12 +588,8 @@ int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
 	}
 	printk("alg name:%s\n",alg);
 
-	 ops = ieee80211_get_crypto_ops(alg);
-	if (ops == NULL) {
-		request_module(module);
-		ops = ieee80211_get_crypto_ops(alg);
-	}
-	if (ops == NULL) {
+	ops = try_then_request_module(ieee80211_get_crypto_ops(alg), module);
+	if (!ops) {
 		IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
 				   dev->name, ext->alg);
 		printk("========>unknown crypto alg %d\n", ext->alg);
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BA.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_BA.h
index 7abedc27d7c1..b6a76aae4832 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BA.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BA.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BATYPE_H_
 #define _BATYPE_H_
 
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
index 8aa38dcf0dfd..21b55fd5b717 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /********************************************************************************************************************************
  * This file is created to process BA Action Frame. According to 802.11 spec, there are 3 BA action types at all. And as BA is
  * related to TS, this part need some structure defined in QOS side code. Also TX RX is going to be resturctured, so how to send
@@ -143,7 +144,7 @@ static struct sk_buff *ieee80211_ADDBA(struct ieee80211_device *ieee, u8 *Dst, P
 
 	if (ACT_ADDBARSP == type) {
 		// Status Code
-		printk(KERN_INFO "=====>to send ADDBARSP\n");
+		netdev_info(ieee->dev, "=====>to send ADDBARSP\n");
 
 		put_unaligned_le16(StatusCode, tag);
 		tag += 2;
@@ -345,7 +346,7 @@ int ieee80211_rx_ADDBAReq(struct ieee80211_device *ieee, struct sk_buff *skb)
 	pBaTimeoutVal = (u16 *)(tag + 5);
 	pBaStartSeqCtrl = (PSEQUENCE_CONTROL)(req + 7);
 
-	printk(KERN_INFO "====================>rx ADDBAREQ from :%pM\n", dst);
+	netdev_info(ieee->dev, "====================>rx ADDBAREQ from :%pM\n", dst);
 //some other capability is not ready now.
 	if ((ieee->current_network.qos_data.active == 0) ||
 		(!ieee->pHTInfo->bCurrentHTSupport)) //||
@@ -672,18 +673,18 @@ TsInitDelBA( struct ieee80211_device *ieee, PTS_COMMON_INFO pTsCommonInfo, TR_SE
  *  return:  NULL
  *  notice:
  ********************************************************************************************************************/
-void BaSetupTimeOut(unsigned long data)
+void BaSetupTimeOut(struct timer_list *t)
 {
-	PTX_TS_RECORD	pTxTs = (PTX_TS_RECORD)data;
+	PTX_TS_RECORD	pTxTs = from_timer(pTxTs, t, TxPendingBARecord.Timer);
 
 	pTxTs->bAddBaReqInProgress = false;
 	pTxTs->bAddBaReqDelayed = true;
 	pTxTs->TxPendingBARecord.bValid = false;
 }
 
-void TxBaInactTimeout(unsigned long data)
+void TxBaInactTimeout(struct timer_list *t)
 {
-	PTX_TS_RECORD	pTxTs = (PTX_TS_RECORD)data;
+	PTX_TS_RECORD	pTxTs = from_timer(pTxTs, t, TxAdmittedBARecord.Timer);
 	struct ieee80211_device *ieee = container_of(pTxTs, struct ieee80211_device, TxTsRecord[pTxTs->num]);
 	TxTsDeleteBA(ieee, pTxTs);
 	ieee80211_send_DELBA(
@@ -694,9 +695,9 @@ void TxBaInactTimeout(unsigned long data)
 		DELBA_REASON_TIMEOUT);
 }
 
-void RxBaInactTimeout(unsigned long data)
+void RxBaInactTimeout(struct timer_list *t)
 {
-	PRX_TS_RECORD	pRxTs = (PRX_TS_RECORD)data;
+	PRX_TS_RECORD	pRxTs = from_timer(pRxTs, t, RxAdmittedBARecord.Timer);
 	struct ieee80211_device *ieee = container_of(pRxTs, struct ieee80211_device, RxTsRecord[pRxTs->num]);
 
 	RxTsDeleteBA(ieee, pRxTs);
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
index 5f54d93dfb66..a85036022aa8 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HT.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RTL819XU_HTTYPE_H_
 #define _RTL819XU_HTTYPE_H_
 
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
index 9248dbcf3370..bf7b7122d042 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_HTProc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 //As this function is mainly ported from Windows driver, so leave the name little changed. If any confusion caused, tell me. Created by WB. 2008.05.08
 #include "ieee80211.h"
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h
index 49c23c720f78..71df9d9e2e99 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INC_QOS_TYPE_H
 #define __INC_QOS_TYPE_H
 
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h b/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
index e25b69777ee7..3a0ff08c687a 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TS.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TSTYPE_H_
 #define _TSTYPE_H_
 #include "rtl819x_Qos.h"
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
index f98bb03aa293..e60a26250682 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c
@@ -1,15 +1,16 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "ieee80211.h"
 #include <linux/etherdevice.h>
 #include <linux/slab.h>
 #include "rtl819x_TS.h"
 
-static void TsSetupTimeOut(unsigned long data)
+static void TsSetupTimeOut(struct timer_list *unused)
 {
 	// Not implement yet
 	// This is used for WMMSA and ACM , that would send ADDTSReq frame.
 }
 
-static void TsInactTimeout(unsigned long data)
+static void TsInactTimeout(struct timer_list *unused)
 {
 	// Not implement yet
 	// This is used for WMMSA and ACM.
@@ -22,9 +23,9 @@ static void TsInactTimeout(unsigned long data)
  *  return:  NULL
  *  notice:
  ********************************************************************************************************************/
-static void RxPktPendingTimeout(unsigned long data)
+static void RxPktPendingTimeout(struct timer_list *t)
 {
-	PRX_TS_RECORD	pRxTs = (PRX_TS_RECORD)data;
+	PRX_TS_RECORD	pRxTs = from_timer(pRxTs, t, RxPktPendingTimer);
 	struct ieee80211_device *ieee = container_of(pRxTs, struct ieee80211_device, RxTsRecord[pRxTs->num]);
 
 	PRX_REORDER_ENTRY	pReorderEntry = NULL;
@@ -89,9 +90,9 @@ static void RxPktPendingTimeout(unsigned long data)
  *  return:  NULL
  *  notice:
  ********************************************************************************************************************/
-static void TsAddBaProcess(unsigned long data)
+static void TsAddBaProcess(struct timer_list *t)
 {
-	PTX_TS_RECORD	pTxTs = (PTX_TS_RECORD)data;
+	PTX_TS_RECORD	pTxTs = from_timer(pTxTs, t, TsAddBaTimer);
 	u8 num = pTxTs->num;
 	struct ieee80211_device *ieee = container_of(pTxTs, struct ieee80211_device, TxTsRecord[num]);
 
@@ -145,16 +146,15 @@ void TSInitialize(struct ieee80211_device *ieee)
 		pTxTS->num = count;
 		// The timers for the operation of Traffic Stream and Block Ack.
 		// DLS related timer will be add here in the future!!
-		setup_timer(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
-			    (unsigned long)pTxTS);
-		setup_timer(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
-			    (unsigned long)pTxTS);
-		setup_timer(&pTxTS->TsAddBaTimer, TsAddBaProcess,
-			    (unsigned long)pTxTS);
-		setup_timer(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
-			    (unsigned long)pTxTS);
-		setup_timer(&pTxTS->TxAdmittedBARecord.Timer,
-			    TxBaInactTimeout, (unsigned long)pTxTS);
+		timer_setup(&pTxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
+			    0);
+		timer_setup(&pTxTS->TsCommonInfo.InactTimer, TsInactTimeout,
+			    0);
+		timer_setup(&pTxTS->TsAddBaTimer, TsAddBaProcess, 0);
+		timer_setup(&pTxTS->TxPendingBARecord.Timer, BaSetupTimeOut,
+			    0);
+		timer_setup(&pTxTS->TxAdmittedBARecord.Timer,
+			    TxBaInactTimeout, 0);
 		ResetTxTsEntry(pTxTS);
 		list_add_tail(&pTxTS->TsCommonInfo.List, &ieee->Tx_TS_Unused_List);
 		pTxTS++;
@@ -167,14 +167,13 @@ void TSInitialize(struct ieee80211_device *ieee)
 	for(count = 0; count < TOTAL_TS_NUM; count++) {
 		pRxTS->num = count;
 		INIT_LIST_HEAD(&pRxTS->RxPendingPktList);
-		setup_timer(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
-			    (unsigned long)pRxTS);
-		setup_timer(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
-			    (unsigned long)pRxTS);
-		setup_timer(&pRxTS->RxAdmittedBARecord.Timer,
-			    RxBaInactTimeout, (unsigned long)pRxTS);
-		setup_timer(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout,
-			    (unsigned long)pRxTS);
+		timer_setup(&pRxTS->TsCommonInfo.SetupTimer, TsSetupTimeOut,
+			    0);
+		timer_setup(&pRxTS->TsCommonInfo.InactTimer, TsInactTimeout,
+			    0);
+		timer_setup(&pRxTS->RxAdmittedBARecord.Timer,
+			    RxBaInactTimeout, 0);
+		timer_setup(&pRxTS->RxPktPendingTimer, RxPktPendingTimeout, 0);
 		ResetRxTsEntry(pRxTS);
 		list_add_tail(&pRxTS->TsCommonInfo.List, &ieee->Rx_TS_Unused_List);
 		pRxTS++;
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 46b3f19e0878..09f66b386e44 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -497,7 +497,7 @@ inline void force_pci_posting(struct net_device *dev)
 
 static struct net_device_stats *rtl8192_stats(struct net_device *dev);
 static void rtl8192_restart(struct work_struct *work);
-static void watch_dog_timer_callback(unsigned long data);
+static void watch_dog_timer_callback(struct timer_list *t);
 
 /****************************************************************************
  *   -----------------------------PROCFS STUFF-------------------------
@@ -1687,9 +1687,13 @@ static short rtl8192_usb_initendpoints(struct net_device *dev)
 #ifndef JACKSON_NEW_RX
 	for (i = 0; i < (MAX_RX_URB + 1); i++) {
 		priv->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
+		if (!priv->rx_urb[i])
+			return -ENOMEM;
 
 		priv->rx_urb[i]->transfer_buffer =
 			kmalloc(RX_URB_SIZE, GFP_KERNEL);
+		if (!priv->rx_urb[i]->transfer_buffer)
+			return -ENOMEM;
 
 		priv->rx_urb[i]->transfer_buffer_length = RX_URB_SIZE;
 	}
@@ -2690,15 +2694,11 @@ static short rtl8192_init(struct net_device *dev)
 	err = rtl8192_read_eeprom_info(dev);
 	if (err) {
 		DMESG("Reading EEPROM info failed");
-		kfree(priv->pFirmware);
-		priv->pFirmware = NULL;
-		free_ieee80211(dev);
 		return err;
 	}
 	rtl8192_get_channel_map(dev);
 	init_hal_dm(dev);
-	setup_timer(&priv->watch_dog_timer, watch_dog_timer_callback,
-		    (unsigned long)dev);
+	timer_setup(&priv->watch_dog_timer, watch_dog_timer_callback, 0);
 	if (rtl8192_usb_initendpoints(dev) != 0) {
 		DMESG("Endopoints initialization failed");
 		return -ENOMEM;
@@ -3499,9 +3499,9 @@ static void rtl819x_watchdog_wqcallback(struct work_struct *work)
 	RT_TRACE(COMP_TRACE, " <==RtUsbCheckForHangWorkItemCallback()\n");
 }
 
-static void watch_dog_timer_callback(unsigned long data)
+static void watch_dog_timer_callback(struct timer_list *t)
 {
-	struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
+	struct r8192_priv *priv = from_timer(priv, t, watch_dog_timer);
 
 	schedule_delayed_work(&priv->watch_dog_wq, 0);
 	mod_timer(&priv->watch_dog_timer,
@@ -3528,7 +3528,7 @@ static int _rtl8192_up(struct net_device *dev)
 	if (priv->ieee80211->state != IEEE80211_LINKED)
 		ieee80211_softmac_start_protocol(priv->ieee80211);
 	ieee80211_reset_queue(priv->ieee80211);
-	watch_dog_timer_callback((unsigned long)dev);
+	watch_dog_timer_callback(&priv->watch_dog_timer);
 	if (!netif_queue_stopped(dev))
 		netif_start_queue(dev);
 	else
@@ -4994,11 +4994,11 @@ static int rtl8192_usb_probe(struct usb_interface *intf,
 
 fail2:
 	rtl8192_down(dev);
+fail:
 	kfree(priv->pFirmware);
 	priv->pFirmware = NULL;
 	rtl8192_usb_deleteendpoints(dev);
 	mdelay(10);
-fail:
 	free_ieee80211(dev);
 
 	RT_TRACE(COMP_ERR, "wlan driver load failed\n");
diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index e6f8d1da65d9..e1b81d34f1ad 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*++
 Copyright-c Realtek Semiconductor Corp. All rights reserved.
 
@@ -2729,8 +2730,7 @@ static void dm_init_fsync(struct net_device *dev)
 	priv->ieee80211->fsync_seconddiff_ratethreshold = 200;
 	priv->ieee80211->fsync_state = Default_Fsync;
 	priv->framesyncMonitor = 1;	/* current default 0xc38 monitor on */
-	setup_timer(&priv->fsync_timer, dm_fsync_timer_callback,
-		    (unsigned long)dev);
+	timer_setup(&priv->fsync_timer, dm_fsync_timer_callback, 0);
 }
 
 static void dm_deInit_fsync(struct net_device *dev)
@@ -2740,10 +2740,10 @@ static void dm_deInit_fsync(struct net_device *dev)
 	del_timer_sync(&priv->fsync_timer);
 }
 
-void dm_fsync_timer_callback(unsigned long data)
+void dm_fsync_timer_callback(struct timer_list *t)
 {
-	struct net_device *dev = (struct net_device *)data;
-	struct r8192_priv *priv = ieee80211_priv((struct net_device *)data);
+	struct r8192_priv *priv = from_timer(priv, t, fsync_timer);
+	struct net_device *dev = priv->ieee80211->dev;
 	u32 rate_index, rate_count = 0, rate_count_diff = 0;
 	bool		bSwitchFromCountDiff = false;
 	bool		bDoubleTimeInterval = false;
diff --git a/drivers/staging/rtl8192u/r8192U_dm.h b/drivers/staging/rtl8192u/r8192U_dm.h
index 2d0232fb3f9b..8f3d618dcfdb 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.h
+++ b/drivers/staging/rtl8192u/r8192U_dm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*****************************************************************************
  *	Copyright(c) 2007,  RealTEK Technology Inc. All Right Reserved.
  *
@@ -226,7 +227,7 @@ void dm_force_tx_fw_info(struct net_device *dev,
 void dm_init_edca_turbo(struct net_device *dev);
 void dm_rf_operation_test_callback(unsigned long data);
 void dm_rf_pathcheck_workitemcallback(struct work_struct *work);
-void dm_fsync_timer_callback(unsigned long data);
+void dm_fsync_timer_callback(struct timer_list *t);
 void dm_cck_txpower_adjust(struct net_device *dev, bool  binch14);
 void dm_shadow_init(struct net_device *dev);
 void dm_initialize_txpower_tracking(struct net_device *dev);
diff --git a/drivers/staging/rtl8192u/r8192U_wx.c b/drivers/staging/rtl8192u/r8192U_wx.c
index a9545386fbc5..e4e6c979bedf 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.c
+++ b/drivers/staging/rtl8192u/r8192U_wx.c
@@ -964,7 +964,7 @@ struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
 	return wstats;
 }
 
-struct iw_handler_def  r8192_wx_handlers_def = {
+const struct iw_handler_def  r8192_wx_handlers_def = {
 	.standard = r8192_wx_handlers,
 	.num_standard = ARRAY_SIZE(r8192_wx_handlers),
 	.private = r8192_private_handler,
diff --git a/drivers/staging/rtl8192u/r8192U_wx.h b/drivers/staging/rtl8192u/r8192U_wx.h
index fb5f808433d1..a6c2b95e2e69 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.h
+++ b/drivers/staging/rtl8192u/r8192U_wx.h
@@ -17,7 +17,7 @@
 #ifndef R8180_WX_H
 #define R8180_WX_H
 
-extern struct iw_handler_def r8192_wx_handlers_def;
+extern const struct iw_handler_def r8192_wx_handlers_def;
 /* Enable  the rtl819x_core.c to share this function, david 2008.9.22 */
 struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev);
 
diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
index ae9a4f1ac8fd..80672100ea26 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.c
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /******************************************************************************
  *
  *  (c) Copyright 2008, RealTEK Technologies Inc. All Rights Reserved.
diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index ad0f6003570d..85fb49ca7bc8 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef R819XUSB_CMDPKT_H
 #define R819XUSB_CMDPKT_H
 /* Different command packet have dedicated message length and definition. */
diff --git a/drivers/staging/rtl8192u/r819xU_firmware.c b/drivers/staging/rtl8192u/r819xU_firmware.c
index 35d1786703a7..9c7e19aedff1 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware.c
+++ b/drivers/staging/rtl8192u/r819xU_firmware.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**************************************************************************************************
  * Procedure:    Init boot code/firmware code/data session
  *
diff --git a/drivers/staging/rtl8192u/r819xU_firmware.h b/drivers/staging/rtl8192u/r819xU_firmware.h
index 24b63f2ec509..cccd1c82ffe0 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware.h
+++ b/drivers/staging/rtl8192u/r819xU_firmware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INC_FIRMWARE_H
 #define __INC_FIRMWARE_H
 
diff --git a/drivers/staging/rtl8192u/r819xU_firmware_img.c b/drivers/staging/rtl8192u/r819xU_firmware_img.c
index 4eb43cfe5690..0af062036688 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware_img.c
+++ b/drivers/staging/rtl8192u/r819xU_firmware_img.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*Created on  2008/ 7/16,  5:31*/
 #include <linux/types.h>
 #include "r819xU_firmware_img.h"
diff --git a/drivers/staging/rtl8192u/r819xU_firmware_img.h b/drivers/staging/rtl8192u/r819xU_firmware_img.h
index 18d0a6b5cbae..355da9157be1 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware_img.h
+++ b/drivers/staging/rtl8192u/r819xU_firmware_img.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IMG_H
 #define IMG_H
 
diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c
index 3874f8307117..12750671c860 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.c
+++ b/drivers/staging/rtl8192u/r819xU_phy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "r8192U.h"
 #include "r8192U_hw.h"
 #include "r819xU_phy.h"
diff --git a/drivers/staging/rtl8192u/r819xU_phy.h b/drivers/staging/rtl8192u/r819xU_phy.h
index e672126330f3..0a42a6092ea9 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.h
+++ b/drivers/staging/rtl8192u/r819xU_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _R819XU_PHY_H
 #define _R819XU_PHY_H
 
diff --git a/drivers/staging/rtl8192u/r819xU_phyreg.h b/drivers/staging/rtl8192u/r819xU_phyreg.h
index b855627e9816..c058a9537526 100644
--- a/drivers/staging/rtl8192u/r819xU_phyreg.h
+++ b/drivers/staging/rtl8192u/r819xU_phyreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _R819XU_PHYREG_H
 #define _R819XU_PHYREG_H
 
diff --git a/drivers/staging/rtl8712/Makefile b/drivers/staging/rtl8712/Makefile
index 6f8500c2d922..3ae216b6621b 100644
--- a/drivers/staging/rtl8712/Makefile
+++ b/drivers/staging/rtl8712/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 r8712u-y :=				\
 		rtl871x_cmd.o		\
 		rtl8712_cmd.o		\
diff --git a/drivers/staging/rtl8712/hal_init.c b/drivers/staging/rtl8712/hal_init.c
index c83d7ebb164f..de832b0b5eec 100644
--- a/drivers/staging/rtl8712/hal_init.c
+++ b/drivers/staging/rtl8712/hal_init.c
@@ -216,9 +216,9 @@ static u8 rtl8712_dl_fw(struct _adapter *padapter)
 		emem_sz = fwhdr.img_SRAM_size;
 		do {
 			memset(ptx_desc, 0, TXDESC_SIZE);
-			if (emem_sz >  MAX_DUMP_FWSZ) /* max=48k */
+			if (emem_sz >  MAX_DUMP_FWSZ) { /* max=48k */
 				dump_emem_sz = MAX_DUMP_FWSZ;
-			else {
+			} else {
 				dump_emem_sz = emem_sz;
 				ptx_desc->txdw0 |= cpu_to_le32(BIT(28));
 			}
diff --git a/drivers/staging/rtl8712/mlme_linux.c b/drivers/staging/rtl8712/mlme_linux.c
index a077069d6227..3c7c4a4faeb2 100644
--- a/drivers/staging/rtl8712/mlme_linux.c
+++ b/drivers/staging/rtl8712/mlme_linux.c
@@ -32,39 +32,45 @@
 #include "drv_types.h"
 #include "mlme_osdep.h"
 
-static void sitesurvey_ctrl_handler(unsigned long data)
+static void sitesurvey_ctrl_handler(struct timer_list *t)
 {
-	struct _adapter *adapter = (struct _adapter *)data;
+	struct _adapter *adapter =
+		from_timer(adapter, t,
+			mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer);
 
 	_r8712_sitesurvey_ctrl_handler(adapter);
 	mod_timer(&adapter->mlmepriv.sitesurveyctrl.sitesurvey_ctrl_timer,
 		  jiffies + msecs_to_jiffies(3000));
 }
 
-static void join_timeout_handler (unsigned long data)
+static void join_timeout_handler (struct timer_list *t)
 {
-	struct _adapter *adapter = (struct _adapter *)data;
+	struct _adapter *adapter =
+		from_timer(adapter, t, mlmepriv.assoc_timer);
 
 	_r8712_join_timeout_handler(adapter);
 }
 
-static void _scan_timeout_handler (unsigned long data)
+static void _scan_timeout_handler (struct timer_list *t)
 {
-	struct _adapter *adapter = (struct _adapter *)data;
+	struct _adapter *adapter =
+		from_timer(adapter, t, mlmepriv.scan_to_timer);
 
 	r8712_scan_timeout_handler(adapter);
 }
 
-static void dhcp_timeout_handler (unsigned long data)
+static void dhcp_timeout_handler (struct timer_list *t)
 {
-	struct _adapter *adapter = (struct _adapter *)data;
+	struct _adapter *adapter =
+		from_timer(adapter, t, mlmepriv.dhcp_timer);
 
 	_r8712_dhcp_timeout_handler(adapter);
 }
 
-static void wdg_timeout_handler (unsigned long data)
+static void wdg_timeout_handler (struct timer_list *t)
 {
-	struct _adapter *adapter = (struct _adapter *)data;
+	struct _adapter *adapter =
+		from_timer(adapter, t, mlmepriv.wdg_timer);
 
 	_r8712_wdg_timeout_handler(adapter);
 
@@ -76,17 +82,12 @@ void r8712_init_mlme_timer(struct _adapter *padapter)
 {
 	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	setup_timer(&pmlmepriv->assoc_timer, join_timeout_handler,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
-		    sitesurvey_ctrl_handler,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmepriv->scan_to_timer, _scan_timeout_handler,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmepriv->dhcp_timer, dhcp_timeout_handler,
-		    (unsigned long)padapter);
-	setup_timer(&pmlmepriv->wdg_timer, wdg_timeout_handler,
-		    (unsigned long)padapter);
+	timer_setup(&pmlmepriv->assoc_timer, join_timeout_handler, 0);
+	timer_setup(&pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer,
+		    sitesurvey_ctrl_handler, 0);
+	timer_setup(&pmlmepriv->scan_to_timer, _scan_timeout_handler, 0);
+	timer_setup(&pmlmepriv->dhcp_timer, dhcp_timeout_handler, 0);
+	timer_setup(&pmlmepriv->wdg_timer, wdg_timeout_handler, 0);
 }
 
 void r8712_os_indicate_connect(struct _adapter *adapter)
@@ -118,9 +119,8 @@ void r8712_os_indicate_disconnect(struct _adapter *adapter)
 			adapter->securitypriv.btkip_countermeasure;
 		memset((unsigned char *)&adapter->securitypriv, 0,
 		       sizeof(struct security_priv));
-		setup_timer(&adapter->securitypriv.tkip_timer,
-			    r8712_use_tkipkey_handler,
-			    (unsigned long)adapter);
+		timer_setup(&adapter->securitypriv.tkip_timer,
+			    r8712_use_tkipkey_handler, 0);
 		/* Restore the PMK information to securitypriv structure
 		 * for the following connection.
 		 */
diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index e698f6ede449..95caf8df9a13 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -313,8 +313,8 @@ u8 r8712_init_drv_sw(struct _adapter *padapter)
 	_r8712_init_recv_priv(&padapter->recvpriv, padapter);
 	memset((unsigned char *)&padapter->securitypriv, 0,
 	       sizeof(struct security_priv));
-	setup_timer(&padapter->securitypriv.tkip_timer,
-		    r8712_use_tkipkey_handler, (unsigned long)padapter);
+	timer_setup(&padapter->securitypriv.tkip_timer,
+		    r8712_use_tkipkey_handler, 0);
 	_r8712_init_sta_priv(&padapter->stapriv);
 	padapter->stapriv.padapter = padapter;
 	r8712_init_bcmc_stainfo(padapter);
@@ -385,11 +385,11 @@ static int netdev_open(struct net_device *pnetdev)
 		padapter->bup = true;
 		if (rtl871x_hal_init(padapter) != _SUCCESS)
 			goto netdev_open_error;
-		if (!r8712_initmac)
+		if (!r8712_initmac) {
 			/* Use the mac address stored in the Efuse */
 			memcpy(pnetdev->dev_addr,
 			       padapter->eeprompriv.mac_addr, ETH_ALEN);
-		else {
+		} else {
 			/* We have to inform f/w to use user-supplied MAC
 			 * address.
 			 */
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index 0104aced113e..3c88994fdfcd 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -356,11 +356,11 @@ _next:
 				if ((wr_sz % 64) == 0)
 					blnPending = 1;
 			}
-			if (blnPending) /* 32 bytes for TX Desc - 8 offset */
+			if (blnPending) { /* 32 bytes for TX Desc - 8 offset */
 				pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE +
 						OFFSET_SZ + 8) << OFFSET_SHT) &
 						0x00ff0000);
-			else {
+			} else {
 				pdesc->txdw0 |= cpu_to_le32(((TXDESC_SIZE +
 							      OFFSET_SZ) <<
 							      OFFSET_SHT) &
diff --git a/drivers/staging/rtl8712/rtl8712_efuse.h b/drivers/staging/rtl8712/rtl8712_efuse.h
index 6a64f91ad75f..dbba51cd40fb 100644
--- a/drivers/staging/rtl8712/rtl8712_efuse.h
+++ b/drivers/staging/rtl8712/rtl8712_efuse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RTL8712_EFUSE_H__
 #define __RTL8712_EFUSE_H__
 
diff --git a/drivers/staging/rtl8712/rtl8712_event.h b/drivers/staging/rtl8712/rtl8712_event.h
index b38374025c93..cad7085c3f8a 100644
--- a/drivers/staging/rtl8712/rtl8712_event.h
+++ b/drivers/staging/rtl8712/rtl8712_event.h
@@ -60,7 +60,6 @@ enum rtl8712_c2h_event {
 	MAX_C2HEVT
 };
 
-
 #ifdef _RTL8712_CMD_C_
 
 static struct fwevent wlanevents[] = {
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index ea3eb94b28b3..8f555e6e1b3f 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -149,7 +149,7 @@ int r8712_free_recvframe(union recv_frame *precvframe,
 	list_add_tail(&(precvframe->u.hdr.list), &pfree_recv_queue->queue);
 	if (padapter != NULL) {
 		if (pfree_recv_queue == &precvpriv->free_recv_queue)
-				precvpriv->free_recvframe_cnt++;
+			precvpriv->free_recvframe_cnt++;
 	}
 	spin_unlock_irqrestore(&pfree_recv_queue->lock, irqL);
 	return _SUCCESS;
@@ -883,10 +883,10 @@ static void query_rx_phy_status(struct _adapter *padapter,
 	 * from 0~100. It is assigned to the BSS List in
 	 * GetValueFromBeaconOrProbeRsp().
 	 */
-	if (bcck_rate)
+	if (bcck_rate) {
 		prframe->u.hdr.attrib.signal_strength =
 			 (u8)r8712_signal_scale_mapping(pwdb_all);
-	else {
+	} else {
 		if (rf_rx_num != 0)
 			prframe->u.hdr.attrib.signal_strength =
 				 (u8)(r8712_signal_scale_mapping(total_rssi /=
diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c
index 04638f1e4e88..a424f447a725 100644
--- a/drivers/staging/rtl8712/rtl871x_cmd.c
+++ b/drivers/staging/rtl8712/rtl871x_cmd.c
@@ -899,9 +899,10 @@ void r8712_createbss_cmd_callback(struct _adapter *padapter,
 			if (!pwlan)
 				goto createbss_cmd_fail;
 			pwlan->last_scanned = jiffies;
-		} else
+		} else {
 			list_add_tail(&(pwlan->list),
 					 &pmlmepriv->scanned_queue.queue);
+		}
 		pnetwork->Length = r8712_get_wlan_bssid_ex_sz(pnetwork);
 		memcpy(&(pwlan->network), pnetwork, pnetwork->Length);
 		pwlan->fixed = true;
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl.h b/drivers/staging/rtl8712/rtl871x_ioctl.h
index 08bcb3b41bbd..634e67461712 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl.h
+++ b/drivers/staging/rtl8712/rtl871x_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IOCTL_H
 #define __IOCTL_H
 
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_set.c b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
index 01a150446f5a..8a5ced4fa9d3 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_set.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_set.c
@@ -78,10 +78,10 @@ static u8 do_join(struct _adapter *padapter)
 		int ret;
 
 		ret = r8712_select_and_join_from_scan(pmlmepriv);
-		if (ret == _SUCCESS)
+		if (ret == _SUCCESS) {
 			mod_timer(&pmlmepriv->assoc_timer,
 				  jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
-		else {
+		} else {
 			if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
 				/* submit r8712_createbss_cmd to change to an
 				 * ADHOC_MASTER pmlmepriv->lock has been
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index bf1ac22bae1c..111c809afc51 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -574,10 +574,10 @@ void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
 				set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
 
 				if (r8712_select_and_join_from_scan(pmlmepriv)
-				    == _SUCCESS)
+				    == _SUCCESS) {
 					mod_timer(&pmlmepriv->assoc_timer, jiffies +
 						  msecs_to_jiffies(MAX_JOIN_TIMEOUT));
-				else {
+				} else {
 					struct wlan_bssid_ex *pdev_network =
 					  &(adapter->registrypriv.dev_network);
 					u8 *pibss =
diff --git a/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h b/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h
index 11bcfb7bf77c..d479f739ff08 100644
--- a/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h
+++ b/drivers/staging/rtl8712/rtl871x_mp_phy_regdef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*****************************************************************************
  *	Copyright(c) 2008,  RealTEK Technology Inc. All Right Reserved.
  *
diff --git a/drivers/staging/rtl8712/rtl871x_pwrctrl.c b/drivers/staging/rtl8712/rtl871x_pwrctrl.c
index e42fc1404c35..ae4c9567bb55 100644
--- a/drivers/staging/rtl8712/rtl871x_pwrctrl.c
+++ b/drivers/staging/rtl8712/rtl871x_pwrctrl.c
@@ -164,9 +164,10 @@ static void rpwm_workitem_callback(struct work_struct *work)
 	}
 }
 
-static void rpwm_check_handler (unsigned long data)
+static void rpwm_check_handler (struct timer_list *t)
 {
-	struct _adapter *adapter = (struct _adapter *)data;
+	struct _adapter *adapter =
+		from_timer(adapter, t, pwrctrlpriv.rpwm_check_timer);
 
 	_rpwm_check_handler(adapter);
 }
@@ -185,8 +186,7 @@ void r8712_init_pwrctrl_priv(struct _adapter *padapter)
 	r8712_write8(padapter, 0x1025FE58, 0);
 	INIT_WORK(&pwrctrlpriv->SetPSModeWorkItem, SetPSModeWorkItemCallback);
 	INIT_WORK(&pwrctrlpriv->rpwm_workitem, rpwm_workitem_callback);
-	setup_timer(&pwrctrlpriv->rpwm_check_timer, rpwm_check_handler,
-		    (unsigned long)padapter);
+	timer_setup(&pwrctrlpriv->rpwm_check_timer, rpwm_check_handler, 0);
 }
 
 /*
diff --git a/drivers/staging/rtl8712/rtl871x_recv.h b/drivers/staging/rtl8712/rtl871x_recv.h
index 9de06c5fe620..f87b2ff5de1c 100644
--- a/drivers/staging/rtl8712/rtl871x_recv.h
+++ b/drivers/staging/rtl8712/rtl871x_recv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RTL871X_RECV_H_
 #define _RTL871X_RECV_H_
 
diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
index bd83fb492c45..56d36f6f9c46 100644
--- a/drivers/staging/rtl8712/rtl871x_security.c
+++ b/drivers/staging/rtl8712/rtl871x_security.c
@@ -1402,9 +1402,10 @@ u32 r8712_aes_decrypt(struct _adapter *padapter, u8 *precvframe)
 	return _SUCCESS;
 }
 
-void r8712_use_tkipkey_handler(unsigned long data)
+void r8712_use_tkipkey_handler(struct timer_list *t)
 {
-	struct _adapter *padapter = (struct _adapter *)data;
+	struct _adapter *padapter =
+                from_timer(padapter, t, securitypriv.tkip_timer);
 
 	padapter->securitypriv.busetkipkey = true;
 }
diff --git a/drivers/staging/rtl8712/rtl871x_security.h b/drivers/staging/rtl8712/rtl871x_security.h
index fa952e17975b..46b88a41d236 100644
--- a/drivers/staging/rtl8712/rtl871x_security.h
+++ b/drivers/staging/rtl8712/rtl871x_security.h
@@ -224,7 +224,7 @@ void r8712_wep_encrypt(struct _adapter *padapter, u8  *pxmitframe);
 u32 r8712_aes_decrypt(struct _adapter *padapter, u8  *precvframe);
 u32 r8712_tkip_decrypt(struct _adapter *padapter, u8  *precvframe);
 void r8712_wep_decrypt(struct _adapter *padapter, u8  *precvframe);
-void r8712_use_tkipkey_handler(unsigned long data);
+void r8712_use_tkipkey_handler(struct timer_list *t);
 
 #endif	/*__RTL871X_SECURITY_H_ */
 
diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index b3e266bd57ab..85eadddfaf06 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -590,9 +590,10 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
 			mac[0] &= 0xFE;
 			dev_info(&udev->dev,
 				"r8712u: MAC Address from user = %pM\n", mac);
-		} else
+		} else {
 			dev_info(&udev->dev,
 				"r8712u: MAC Address from efuse = %pM\n", mac);
+		}
 		ether_addr_copy(pnetdev->dev_addr, mac);
 	}
 	/* step 6. Load the firmware asynchronously */
diff --git a/drivers/staging/rtl8723bs/Makefile b/drivers/staging/rtl8723bs/Makefile
index 4e7b460a9c73..f236acfd3afa 100644
--- a/drivers/staging/rtl8723bs/Makefile
+++ b/drivers/staging/rtl8723bs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 r8723bs-y = \
 		core/rtw_ap.o \
 		core/rtw_btcoex.o \
diff --git a/drivers/staging/rtl8723bs/core/rtw_ap.c b/drivers/staging/rtl8723bs/core/rtw_ap.c
index d3007c1c45e3..0b530ea7fd81 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ap.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ap.c
@@ -1581,15 +1581,13 @@ u8 rtw_ap_set_pairwise_key(struct adapter *padapter, struct sta_info *psta)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	psetstakey_para = (struct set_stakey_parm *)rtw_zmalloc(
-		sizeof(struct set_stakey_parm)
-	);
+	psetstakey_para = rtw_zmalloc(sizeof(struct set_stakey_parm));
 	if (psetstakey_para == NULL) {
 		kfree((u8 *) ph2c);
 		res = _FAIL;
@@ -1630,12 +1628,12 @@ static int rtw_ap_set_key(
 
 	/* DBG_871X("%s\n", __func__); */
 
-	pcmd = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
-	psetkeyparm = (struct setkey_parm *)rtw_zmalloc(sizeof(struct setkey_parm));
+	psetkeyparm = rtw_zmalloc(sizeof(struct setkey_parm));
 	if (psetkeyparm == NULL) {
 		kfree((unsigned char *)pcmd);
 		res = _FAIL;
diff --git a/drivers/staging/rtl8723bs/core/rtw_btcoex.c b/drivers/staging/rtl8723bs/core/rtw_btcoex.c
index 01f78d1671de..79aa02afad01 100644
--- a/drivers/staging/rtl8723bs/core/rtw_btcoex.c
+++ b/drivers/staging/rtl8723bs/core/rtw_btcoex.c
@@ -207,11 +207,11 @@ void rtw_btcoex_RejectApAggregatedPacket(struct adapter *padapter, u8 enable)
 	psta = rtw_get_stainfo(&padapter->stapriv, get_bssid(&padapter->mlmepriv));
 
 	if (true == enable) {
-		pmlmeinfo->bAcceptAddbaReq = false;
+		pmlmeinfo->accept_addba_req = false;
 		if (psta)
 			send_delba(padapter, 0, psta->hwaddr);
 	} else{
-		pmlmeinfo->bAcceptAddbaReq = true;
+		pmlmeinfo->accept_addba_req = true;
 	}
 }
 
diff --git a/drivers/staging/rtl8723bs/core/rtw_cmd.c b/drivers/staging/rtl8723bs/core/rtw_cmd.c
index d381827dba3b..9ac2dea6dff1 100644
--- a/drivers/staging/rtl8723bs/core/rtw_cmd.c
+++ b/drivers/staging/rtl8723bs/core/rtw_cmd.c
@@ -408,7 +408,7 @@ void rtw_free_cmd_obj(struct cmd_obj *pcmd)
 	}
 
 	/* free cmd_obj */
-	kfree((unsigned char *)pcmd);
+	kfree(pcmd);
 }
 
 
@@ -613,13 +613,13 @@ u8 rtw_sitesurvey_cmd(struct adapter  *padapter, struct ndis_802_11_ssid *ssid,
 		rtw_lps_ctrl_wk_cmd(padapter, LPS_CTRL_SCAN, 1);
 	}
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL)
 		return _FAIL;
 
-	psurveyPara = (struct sitesurvey_parm *)rtw_zmalloc(sizeof(struct sitesurvey_parm));
+	psurveyPara = rtw_zmalloc(sizeof(struct sitesurvey_parm));
 	if (psurveyPara == NULL) {
-		kfree((unsigned char *) ph2c);
+		kfree(ph2c);
 		return _FAIL;
 	}
 
@@ -681,15 +681,15 @@ u8 rtw_setdatarate_cmd(struct adapter *padapter, u8 *rateset)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pbsetdataratepara = (struct setdatarate_parm *)rtw_zmalloc(sizeof(struct setdatarate_parm));
+	pbsetdataratepara = rtw_zmalloc(sizeof(struct setdatarate_parm));
 	if (pbsetdataratepara == NULL) {
-		kfree((u8 *) ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -706,8 +706,8 @@ exit:
 void rtw_getbbrfreg_cmdrsp_callback(struct adapter *padapter,  struct cmd_obj *pcmd)
 {
 	/* rtw_free_cmd_obj(pcmd); */
-	kfree((unsigned char *) pcmd->parmbuf);
-	kfree((unsigned char *) pcmd);
+	kfree(pcmd->parmbuf);
+	kfree(pcmd);
 }
 
 u8 rtw_createbss_cmd(struct adapter  *padapter)
@@ -724,7 +724,7 @@ u8 rtw_createbss_cmd(struct adapter  *padapter)
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_info_, (" createbss for SSid:%s\n", pmlmepriv->assoc_ssid.Ssid));
 	}
 
-	pcmd = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd == NULL) {
 		res = _FAIL;
 		goto exit;
@@ -757,7 +757,7 @@ u8 rtw_startbss_cmd(struct adapter  *padapter, int flags)
 		start_bss_network(padapter, (u8 *)&(padapter->mlmepriv.cur_network.network));
 	} else {
 		/* need enqueue, prepare cmd_obj and enqueue */
-		pcmd = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+		pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (pcmd == NULL) {
 			res = _FAIL;
 			goto exit;
@@ -815,7 +815,7 @@ u8 rtw_joinbss_cmd(struct adapter  *padapter, struct wlan_network *pnetwork)
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_notice_, ("+Join cmd: SSid =[%s]\n", pmlmepriv->assoc_ssid.Ssid));
 	}
 
-	pcmd = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd == NULL) {
 		res = _FAIL;
 		RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("rtw_joinbss_cmd: memory allocate for cmd_obj fail!!!\n"));
@@ -847,7 +847,7 @@ u8 rtw_joinbss_cmd(struct adapter  *padapter, struct wlan_network *pnetwork)
 	psecnetwork = (struct wlan_bssid_ex *)&psecuritypriv->sec_bss;
 	if (psecnetwork == NULL) {
 		if (pcmd != NULL)
-			kfree((unsigned char *)pcmd);
+			kfree(pcmd);
 
 		res = _FAIL;
 
@@ -943,7 +943,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu
 	RT_TRACE(_module_rtl871x_cmd_c_, _drv_notice_, ("+rtw_disassoc_cmd\n"));
 
 	/* prepare cmd parameter */
-	param = (struct disconnect_parm *)rtw_zmalloc(sizeof(*param));
+	param = rtw_zmalloc(sizeof(*param));
 	if (param == NULL) {
 		res = _FAIL;
 		goto exit;
@@ -952,10 +952,10 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu
 
 	if (enqueue) {
 		/* need enqueue, prepare cmd_obj and enqueue */
-		cmdobj = (struct cmd_obj *)rtw_zmalloc(sizeof(*cmdobj));
+		cmdobj = rtw_zmalloc(sizeof(*cmdobj));
 		if (cmdobj == NULL) {
 			res = _FAIL;
-			kfree((u8 *)param);
+			kfree(param);
 			goto exit;
 		}
 		init_h2fwcmd_w_parm_no_rsp(cmdobj, param, _DisConnect_CMD_);
@@ -964,7 +964,7 @@ u8 rtw_disassoc_cmd(struct adapter *padapter, u32 deauth_timeout_ms, bool enqueu
 		/* no need to enqueue, do the cmd hdl directly and free cmd parameter */
 		if (H2C_SUCCESS != disconnect_hdl(padapter, (u8 *)param))
 			res = _FAIL;
-		kfree((u8 *)param);
+		kfree(param);
 	}
 
 exit:
@@ -979,7 +979,7 @@ u8 rtw_setopmode_cmd(struct adapter  *padapter, enum NDIS_802_11_NETWORK_INFRAST
 	struct	cmd_priv   *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	psetop = (struct setopmode_parm *)rtw_zmalloc(sizeof(struct setopmode_parm));
+	psetop = rtw_zmalloc(sizeof(struct setopmode_parm));
 
 	if (psetop == NULL) {
 		res = _FAIL;
@@ -988,9 +988,9 @@ u8 rtw_setopmode_cmd(struct adapter  *padapter, enum NDIS_802_11_NETWORK_INFRAST
 	psetop->mode = (u8)networktype;
 
 	if (enqueue) {
-		ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+		ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (ph2c == NULL) {
-			kfree((u8 *)psetop);
+			kfree(psetop);
 			res = _FAIL;
 			goto exit;
 		}
@@ -999,7 +999,7 @@ u8 rtw_setopmode_cmd(struct adapter  *padapter, enum NDIS_802_11_NETWORK_INFRAST
 		res = rtw_enqueue_cmd(pcmdpriv, ph2c);
 	} else{
 		setopmode_hdl(padapter, (u8 *)psetop);
-		kfree((u8 *)psetop);
+		kfree(psetop);
 	}
 exit:
 	return res;
@@ -1016,7 +1016,7 @@ u8 rtw_setstakey_cmd(struct adapter *padapter, struct sta_info *sta, u8 unicast_
 	struct security_priv 	*psecuritypriv = &padapter->securitypriv;
 	u8 res = _SUCCESS;
 
-	psetstakey_para = (struct set_stakey_parm *)rtw_zmalloc(sizeof(struct set_stakey_parm));
+	psetstakey_para = rtw_zmalloc(sizeof(struct set_stakey_parm));
 	if (psetstakey_para == NULL) {
 		res = _FAIL;
 		goto exit;
@@ -1040,17 +1040,17 @@ u8 rtw_setstakey_cmd(struct adapter *padapter, struct sta_info *sta, u8 unicast_
 	padapter->securitypriv.busetkipkey = true;
 
 	if (enqueue) {
-		ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+		ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (ph2c == NULL) {
-			kfree((u8 *) psetstakey_para);
+			kfree(psetstakey_para);
 			res = _FAIL;
 			goto exit;
 		}
 
-		psetstakey_rsp = (struct set_stakey_rsp *)rtw_zmalloc(sizeof(struct set_stakey_rsp));
+		psetstakey_rsp = rtw_zmalloc(sizeof(struct set_stakey_rsp));
 		if (psetstakey_rsp == NULL) {
-			kfree((u8 *) ph2c);
-			kfree((u8 *) psetstakey_para);
+			kfree(ph2c);
+			kfree(psetstakey_para);
 			res = _FAIL;
 			goto exit;
 		}
@@ -1061,7 +1061,7 @@ u8 rtw_setstakey_cmd(struct adapter *padapter, struct sta_info *sta, u8 unicast_
 		res = rtw_enqueue_cmd(pcmdpriv, ph2c);
 	} else{
 		set_stakey_hdl(padapter, (u8 *)psetstakey_para);
-		kfree((u8 *) psetstakey_para);
+		kfree(psetstakey_para);
 	}
 exit:
 	return res;
@@ -1083,23 +1083,23 @@ u8 rtw_clearstakey_cmd(struct adapter *padapter, struct sta_info *sta, u8 enqueu
 			rtw_camid_free(padapter, cam_id);
 		}
 	} else{
-		ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+		ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (ph2c == NULL) {
 			res = _FAIL;
 			goto exit;
 		}
 
-		psetstakey_para = (struct set_stakey_parm *)rtw_zmalloc(sizeof(struct set_stakey_parm));
+		psetstakey_para = rtw_zmalloc(sizeof(struct set_stakey_parm));
 		if (psetstakey_para == NULL) {
-			kfree((u8 *) ph2c);
+			kfree(ph2c);
 			res = _FAIL;
 			goto exit;
 		}
 
-		psetstakey_rsp = (struct set_stakey_rsp *)rtw_zmalloc(sizeof(struct set_stakey_rsp));
+		psetstakey_rsp = rtw_zmalloc(sizeof(struct set_stakey_rsp));
 		if (psetstakey_rsp == NULL) {
-			kfree((u8 *) ph2c);
-			kfree((u8 *) psetstakey_para);
+			kfree(ph2c);
+			kfree(psetstakey_para);
 			res = _FAIL;
 			goto exit;
 		}
@@ -1128,15 +1128,15 @@ u8 rtw_addbareq_cmd(struct adapter *padapter, u8 tid, u8 *addr)
 
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	paddbareq_parm = (struct addBaReq_parm *)rtw_zmalloc(sizeof(struct addBaReq_parm));
+	paddbareq_parm = rtw_zmalloc(sizeof(struct addBaReq_parm));
 	if (paddbareq_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1162,15 +1162,15 @@ u8 rtw_reset_securitypriv_cmd(struct adapter *padapter)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1197,15 +1197,15 @@ u8 rtw_free_assoc_resources_cmd(struct adapter *padapter)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1233,15 +1233,15 @@ u8 rtw_dynamic_chk_wk_cmd(struct adapter *padapter)
 	u8 res = _SUCCESS;
 
 	/* only  primary padapter does this cmd */
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1283,7 +1283,7 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue, u8 swconf
 	}
 
 	/* prepare cmd parameter */
-	setChannelPlan_param = (struct	SetChannelPlan_param *)rtw_zmalloc(sizeof(struct SetChannelPlan_param));
+	setChannelPlan_param = rtw_zmalloc(sizeof(struct SetChannelPlan_param));
 	if (setChannelPlan_param == NULL) {
 		res = _FAIL;
 		goto exit;
@@ -1292,9 +1292,9 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue, u8 swconf
 
 	if (enqueue) {
 		/* need enqueue, prepare cmd_obj and enqueue */
-		pcmdobj = (struct	cmd_obj *)rtw_zmalloc(sizeof(struct	cmd_obj));
+		pcmdobj = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (pcmdobj == NULL) {
-			kfree((u8 *)setChannelPlan_param);
+			kfree(setChannelPlan_param);
 			res = _FAIL;
 			goto exit;
 		}
@@ -1306,7 +1306,7 @@ u8 rtw_set_chplan_cmd(struct adapter *padapter, u8 chplan, u8 enqueue, u8 swconf
 		if (H2C_SUCCESS != set_chplan_hdl(padapter, (unsigned char *)setChannelPlan_param))
 			res = _FAIL;
 
-		kfree((u8 *)setChannelPlan_param);
+		kfree(setChannelPlan_param);
 	}
 
 	/* do something based on res... */
@@ -1553,15 +1553,15 @@ u8 rtw_lps_ctrl_wk_cmd(struct adapter *padapter, u8 lps_ctrl_type, u8 enqueue)
 	/* 	return res; */
 
 	if (enqueue) {
-		ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+		ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (ph2c == NULL) {
 			res = _FAIL;
 			goto exit;
 		}
 
-		pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+		pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 		if (pdrvextra_cmd_parm == NULL) {
-			kfree((unsigned char *)ph2c);
+			kfree(ph2c);
 			res = _FAIL;
 			goto exit;
 		}
@@ -1595,15 +1595,15 @@ u8 rtw_dm_in_lps_wk_cmd(struct adapter *padapter)
 	u8 res = _SUCCESS;
 
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1668,15 +1668,15 @@ u8 rtw_dm_ra_mask_wk_cmd(struct adapter *padapter, u8 *psta)
 	u8 res = _SUCCESS;
 
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1719,15 +1719,15 @@ u8 rtw_ps_cmd(struct adapter *padapter)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ppscmd = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ppscmd = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ppscmd == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ppscmd);
+		kfree(ppscmd);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1791,15 +1791,15 @@ u8 rtw_chk_hi_queue_cmd(struct adapter *padapter)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((unsigned char *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1890,15 +1890,15 @@ u8 rtw_c2h_packet_wk_cmd(struct adapter *padapter, u8 *pbuf, u16 length)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((u8 *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1925,15 +1925,15 @@ u8 rtw_c2h_wk_cmd(struct adapter *padapter, u8 *c2h_evt)
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	pdrvextra_cmd_parm = (struct drvextra_cmd_parm *)rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
+	pdrvextra_cmd_parm = rtw_zmalloc(sizeof(struct drvextra_cmd_parm));
 	if (pdrvextra_cmd_parm == NULL) {
-		kfree((u8 *)ph2c);
+		kfree(ph2c);
 		res = _FAIL;
 		goto exit;
 	}
@@ -1967,7 +1967,7 @@ static void c2h_wk_callback(_workitem *work)
 			/* This C2H event is read, clear it */
 			c2h_evt_clear(adapter);
 		} else{
-			c2h_evt = (u8 *)rtw_malloc(16);
+			c2h_evt = rtw_malloc(16);
 			if (c2h_evt != NULL) {
 				/* This C2H event is not read, read & clear now */
 				if (rtw_hal_c2h_evt_read(adapter, c2h_evt) != _SUCCESS) {
diff --git a/drivers/staging/rtl8723bs/core/rtw_debug.c b/drivers/staging/rtl8723bs/core/rtw_debug.c
index 3db02e9f27ab..b5dd244fee8f 100644
--- a/drivers/staging/rtl8723bs/core/rtw_debug.c
+++ b/drivers/staging/rtl8723bs/core/rtw_debug.c
@@ -1122,7 +1122,8 @@ int proc_get_rx_ampdu(struct seq_file *m, void *v)
 
 	if (pregpriv)
 		DBG_871X_SEL_NL(m,
-			"bAcceptAddbaReq = %d , 0:Reject AP's Add BA req, 1:Accept AP's Add BA req.\n", pmlmeinfo->bAcceptAddbaReq
+			"accept_addba_req = %d , 0:Reject AP's Add BA req, 1:Accept AP's Add BA req.\n",
+			pmlmeinfo->accept_addba_req
 			);
 
 	return 0;
@@ -1146,8 +1147,9 @@ ssize_t proc_set_rx_ampdu(struct file *file, const char __user *buffer, size_t c
 		sscanf(tmp, "%d ", &mode);
 
 		if (pregpriv && mode < 2) {
-			pmlmeinfo->bAcceptAddbaReq = mode;
-			DBG_871X("pmlmeinfo->bAcceptAddbaReq =%d\n", pmlmeinfo->bAcceptAddbaReq);
+			pmlmeinfo->accept_addba_req = mode;
+			DBG_871X("pmlmeinfo->accept_addba_req =%d\n",
+				 pmlmeinfo->accept_addba_req);
 			if (mode == 0) {
 				/*tear down Rx AMPDU*/
 				send_delba(padapter, 0, get_my_bssid(&(pmlmeinfo->network)));/* recipient*/
diff --git a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
index 7b37e085b793..9167900b5f7d 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c
@@ -1189,9 +1189,9 @@ void rtw_macaddr_cfg(struct device *dev, u8 *mac_addr)
 	     (mac[3] == 0xff) && (mac[4] == 0xff) && (mac[5] == 0xff)) ||
 	    ((mac[0] == 0x00) && (mac[1] == 0x00) && (mac[2] == 0x00) &&
 	     (mac[3] == 0x00) && (mac[4] == 0x00) && (mac[5] == 0x00))) {
-	        if (np &&
-	            (addr = of_get_property(np, "local-mac-address", &len)) &&
-	            len == ETH_ALEN) {
+		if (np &&
+		    (addr = of_get_property(np, "local-mac-address", &len)) &&
+		    len == ETH_ALEN) {
 			memcpy(mac_addr, addr, ETH_ALEN);
 		} else {
 			mac[0] = 0x00;
diff --git a/drivers/staging/rtl8723bs/core/rtw_ioctl_set.c b/drivers/staging/rtl8723bs/core/rtw_ioctl_set.c
index d815a693fa64..e5354cec8dd5 100644
--- a/drivers/staging/rtl8723bs/core/rtw_ioctl_set.c
+++ b/drivers/staging/rtl8723bs/core/rtw_ioctl_set.c
@@ -590,14 +590,10 @@ u8 rtw_set_802_11_authentication_mode(struct adapter *padapter, enum NDIS_802_11
 u8 rtw_set_802_11_add_wep(struct adapter *padapter, struct ndis_802_11_wep *wep)
 {
 
-	u8 bdefaultkey;
-	u8 btransmitkey;
 	sint		keyid, res;
 	struct security_priv *psecuritypriv = &(padapter->securitypriv);
 	u8 ret = _SUCCESS;
 
-	bdefaultkey = (wep->KeyIndex & 0x40000000) > 0 ? false : true;   /* for ??? */
-	btransmitkey = (wep->KeyIndex & 0x80000000) > 0 ? true  : false;	/* for ??? */
 	keyid = wep->KeyIndex & 0x3fffffff;
 
 	if (keyid >= 4) {
diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme.c b/drivers/staging/rtl8723bs/core/rtw_mlme.c
index 6b778206a1a3..fe739eb2cf7d 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme.c
@@ -28,9 +28,6 @@ sint	_rtw_init_mlme_priv(struct adapter *padapter)
 	struct mlme_priv 	*pmlmepriv = &padapter->mlmepriv;
 	sint	res = _SUCCESS;
 
-	/*  We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
-	/* memset((u8 *)pmlmepriv, 0, sizeof(struct mlme_priv)); */
-
 	pmlmepriv->nic_hdl = (u8 *)padapter;
 
 	pmlmepriv->pscanned = NULL;
@@ -119,9 +116,8 @@ void rtw_free_mlme_priv_ie_data(struct mlme_priv *pmlmepriv)
 
 void _rtw_free_mlme_priv(struct mlme_priv *pmlmepriv)
 {
-	rtw_free_mlme_priv_ie_data(pmlmepriv);
-
 	if (pmlmepriv) {
+		rtw_free_mlme_priv_ie_data(pmlmepriv);
 		if (pmlmepriv->free_bss_buf) {
 			vfree(pmlmepriv->free_bss_buf);
 		}
@@ -1818,8 +1814,10 @@ void rtw_wmm_event_callback(struct adapter *padapter, u8 *pbuf)
 * _rtw_join_timeout_handler - Timeout/failure handler for CMD JoinBss
 * @adapter: pointer to struct adapter structure
 */
-void _rtw_join_timeout_handler (struct adapter *adapter)
+void _rtw_join_timeout_handler(struct timer_list *t)
 {
+	struct adapter *adapter = from_timer(adapter, t,
+						  mlmepriv.assoc_timer);
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 
 	DBG_871X("%s, fw_state =%x\n", __func__, get_fwstate(pmlmepriv));
@@ -1871,8 +1869,10 @@ void _rtw_join_timeout_handler (struct adapter *adapter)
 * rtw_scan_timeout_handler - Timeout/Failure handler for CMD SiteSurvey
 * @adapter: pointer to struct adapter structure
 */
-void rtw_scan_timeout_handler (struct adapter *adapter)
+void rtw_scan_timeout_handler(struct timer_list *t)
 {
+	struct adapter *adapter = from_timer(adapter, t,
+						  mlmepriv.scan_to_timer);
 	struct	mlme_priv *pmlmepriv = &adapter->mlmepriv;
 
 	DBG_871X(FUNC_ADPT_FMT" fw_state =%x\n", FUNC_ADPT_ARG(adapter), get_fwstate(pmlmepriv));
@@ -1935,7 +1935,7 @@ exit:
 	return;
 }
 
-void rtw_dynamic_check_timer_handlder(struct adapter *adapter)
+void rtw_dynamic_check_timer_handler(struct adapter *adapter)
 {
 	if (!adapter)
 		return;
@@ -2272,13 +2272,13 @@ sint rtw_set_auth(struct adapter *adapter, struct security_priv *psecuritypriv)
 	struct	cmd_priv *pcmdpriv = &(adapter->cmdpriv);
 	sint		res = _SUCCESS;
 
-	pcmd = (struct	cmd_obj *)rtw_zmalloc(sizeof(struct	cmd_obj));
+	pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd == NULL) {
 		res = _FAIL;  /* try again */
 		goto exit;
 	}
 
-	psetauthparm = (struct setauth_parm *)rtw_zmalloc(sizeof(struct setauth_parm));
+	psetauthparm = rtw_zmalloc(sizeof(struct setauth_parm));
 	if (psetauthparm == NULL) {
 		kfree((unsigned char *)pcmd);
 		res = _FAIL;
@@ -2313,7 +2313,7 @@ sint rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, s
 	struct cmd_priv 	*pcmdpriv = &(adapter->cmdpriv);
 	sint	res = _SUCCESS;
 
-	psetkeyparm = (struct setkey_parm *)rtw_zmalloc(sizeof(struct setkey_parm));
+	psetkeyparm = rtw_zmalloc(sizeof(struct setkey_parm));
 	if (psetkeyparm == NULL) {
 		res = _FAIL;
 		goto exit;
@@ -2365,7 +2365,7 @@ sint rtw_set_key(struct adapter *adapter, struct security_priv *psecuritypriv, s
 
 
 	if (enqueue) {
-		pcmd = (struct	cmd_obj *)rtw_zmalloc(sizeof(struct	cmd_obj));
+		pcmd = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (pcmd == NULL) {
 			kfree((unsigned char *)psetkeyparm);
 			res = _FAIL;  /* try again */
diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
index b6d137f505e1..7d7756e40bcb 100644
--- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c
@@ -17,6 +17,7 @@
 #include <drv_types.h>
 #include <rtw_debug.h>
 #include <rtw_wifi_regd.h>
+#include <linux/kernel.h>
 
 
 static struct mlme_handler mlme_sta_tbl[] = {
@@ -474,15 +475,12 @@ int	init_mlme_ext_priv(struct adapter *padapter)
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
 
-	/*  We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
-	/* memset((u8 *)pmlmeext, 0, sizeof(struct mlme_ext_priv)); */
-
 	pmlmeext->padapter = padapter;
 
 	/* fill_fwpriv(padapter, &(pmlmeext->fwpriv)); */
 
 	init_mlme_ext_priv_value(padapter);
-	pmlmeinfo->bAcceptAddbaReq = pregistrypriv->bAcceptAddbaReq;
+	pmlmeinfo->accept_addba_req = pregistrypriv->accept_addba_req;
 
 	init_mlme_ext_timer(padapter);
 
@@ -510,7 +508,7 @@ void free_mlme_ext_priv(struct mlme_ext_priv *pmlmeext)
 	if (!padapter)
 		return;
 
-	if (padapter->bDriverStopped == true) {
+	if (padapter->bDriverStopped) {
 		del_timer_sync(&pmlmeext->survey_timer);
 		del_timer_sync(&pmlmeext->link_timer);
 		/* del_timer_sync(&pmlmeext->ADDBA_timer); */
@@ -562,7 +560,7 @@ void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame)
 
 	index = GetFrameSubType(pframe) >> 4;
 
-	if (index >= (sizeof(mlme_sta_tbl) / sizeof(struct mlme_handler))) {
+	if (index >= ARRAY_SIZE(mlme_sta_tbl)) {
 		RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("Currently we do not support reserved sub-fr-type =%d\n", index));
 		return;
 	}
@@ -582,11 +580,11 @@ void mgt_dispatcher(struct adapter *padapter, union recv_frame *precv_frame)
 
 	switch (GetFrameSubType(pframe)) {
 	case WIFI_AUTH:
-		if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true)
+		if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
 			ptable->func = &OnAuth;
 		else
 			ptable->func = &OnAuthClient;
-		/* pass through */
+		/* fall through */
 	case WIFI_ASSOCREQ:
 	case WIFI_REASSOCREQ:
 		_mgt_dispatcher(padapter, ptable, precv_frame);
@@ -637,8 +635,8 @@ unsigned int OnProbeReq(struct adapter *padapter, union recv_frame *precv_frame)
 	/* DBG_871X("+OnProbeReq\n"); */
 
 #ifdef CONFIG_AUTO_AP_MODE
-	if (check_fwstate(pmlmepriv, _FW_LINKED) == true &&
-			pmlmepriv->cur_network.join_res == true) {
+	if (check_fwstate(pmlmepriv, _FW_LINKED) &&
+			pmlmepriv->cur_network.join_res) {
 		struct sta_info *psta;
 		u8 *mac_addr, *peer_addr;
 		struct sta_priv *pstapriv = &padapter->stapriv;
@@ -752,7 +750,7 @@ _non_rc_device:
 
 	/* check (wildcard) SSID */
 	if (p != NULL) {
-		if (is_valid_p2p_probereq == true)
+		if (is_valid_p2p_probereq)
 			goto _issue_probersp;
 
 		if ((ielen != 0 && false == !memcmp((void *)(p+2), (void *)cur->Ssid.Ssid, cur->Ssid.SsidLength))
@@ -761,8 +759,8 @@ _non_rc_device:
 			return _SUCCESS;
 
 _issue_probersp:
-		if (((check_fwstate(pmlmepriv, _FW_LINKED) == true &&
-			pmlmepriv->cur_network.join_res == true)) || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
+		if ((check_fwstate(pmlmepriv, _FW_LINKED)  &&
+			pmlmepriv->cur_network.join_res) || check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
 			/* DBG_871X("+issue_probersp during ap mode\n"); */
 			issue_probersp(padapter, get_sa(pframe), is_valid_p2p_probereq);
 		}
@@ -818,7 +816,7 @@ unsigned int OnBeacon(struct adapter *padapter, union recv_frame *precv_frame)
 	if (!memcmp(GetAddr3Ptr(pframe), get_my_bssid(&pmlmeinfo->network), ETH_ALEN)) {
 		if (pmlmeinfo->state & WIFI_FW_AUTH_NULL) {
 			/* we should update current network before auth, or some IE is wrong */
-			pbss = (struct wlan_bssid_ex *)rtw_malloc(sizeof(struct wlan_bssid_ex));
+			pbss = rtw_malloc(sizeof(struct wlan_bssid_ex));
 			if (pbss) {
 				if (collect_bss_info(padapter, precv_frame, pbss) == _SUCCESS) {
 					update_network(&(pmlmepriv->cur_network.network), pbss, padapter, true);
@@ -1773,7 +1771,7 @@ unsigned int OnDeAuth(struct adapter *padapter, union recv_frame *precv_frame)
 
 	DBG_871X("%s Reason code(%d)\n", __func__, reason);
 
-	if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
+	if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
 		struct sta_info *psta;
 		struct sta_priv *pstapriv = &padapter->stapriv;
 
@@ -1848,7 +1846,7 @@ unsigned int OnDisassoc(struct adapter *padapter, union recv_frame *precv_frame)
 
 	DBG_871X("%s Reason code(%d)\n", __func__, reason);
 
-	if (check_fwstate(pmlmepriv, WIFI_AP_STATE) == true) {
+	if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
 		struct sta_info *psta;
 		struct sta_priv *pstapriv = &padapter->stapriv;
 
@@ -1976,7 +1974,7 @@ unsigned int OnAction_back(struct adapter *padapter, union recv_frame *precv_fra
 			/* process_addba_req(padapter, (u8 *)&(pmlmeinfo->ADDBA_req), GetAddr3Ptr(pframe)); */
 			process_addba_req(padapter, (u8 *)&(pmlmeinfo->ADDBA_req), addr);
 
-			if (pmlmeinfo->bAcceptAddbaReq == true) {
+			if (pmlmeinfo->accept_addba_req) {
 				issue_action_BA(padapter, addr, RTW_WLAN_ACTION_ADDBA_RESP, 0);
 			} else{
 				issue_action_BA(padapter, addr, RTW_WLAN_ACTION_ADDBA_RESP, 37);/* reject ADDBA Req */
@@ -2227,7 +2225,7 @@ unsigned int OnAction(struct adapter *padapter, union recv_frame *precv_frame)
 
 	category = frame_body[0];
 
-	for (i = 0; i < sizeof(OnAction_tbl)/sizeof(struct action_handler); i++) {
+	for (i = 0; i < ARRAY_SIZE(OnAction_tbl); i++) {
 		ptable = &OnAction_tbl[i];
 
 		if (category == ptable->num)
@@ -2350,8 +2348,8 @@ void update_mgntframe_attrib_addr(struct adapter *padapter, struct xmit_frame *p
 
 void dump_mgntframe(struct adapter *padapter, struct xmit_frame *pmgntframe)
 {
-	if (padapter->bSurpriseRemoved == true ||
-		padapter->bDriverStopped == true) {
+	if (padapter->bSurpriseRemoved ||
+		padapter->bDriverStopped) {
 		rtw_free_xmitbuf(&padapter->xmitpriv, pmgntframe->pxmitbuf);
 		rtw_free_xmitframe(&padapter->xmitpriv, pmgntframe);
 		return;
@@ -2368,8 +2366,8 @@ s32 dump_mgntframe_and_wait(struct adapter *padapter, struct xmit_frame *pmgntfr
 	struct xmit_buf *pxmitbuf = pmgntframe->pxmitbuf;
 	struct submit_ctx sctx;
 
-	if (padapter->bSurpriseRemoved == true ||
-		padapter->bDriverStopped == true) {
+	if (padapter->bSurpriseRemoved ||
+		padapter->bDriverStopped) {
 		rtw_free_xmitbuf(&padapter->xmitpriv, pmgntframe->pxmitbuf);
 		rtw_free_xmitframe(&padapter->xmitpriv, pmgntframe);
 		return ret;
@@ -2397,8 +2395,8 @@ s32 dump_mgntframe_and_wait_ack(struct adapter *padapter, struct xmit_frame *pmg
 	u32 timeout_ms = 500;/*   500ms */
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 
-	if (padapter->bSurpriseRemoved == true ||
-		padapter->bDriverStopped == true) {
+	if (padapter->bSurpriseRemoved ||
+		padapter->bDriverStopped) {
 		rtw_free_xmitbuf(&padapter->xmitpriv, pmgntframe->pxmitbuf);
 		rtw_free_xmitframe(&padapter->xmitpriv, pmgntframe);
 		return -1;
@@ -2833,7 +2831,9 @@ void issue_probersp(struct adapter *padapter, unsigned char *da, u8 is_valid_p2p
 
 }
 
-static int _issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *pssid, u8 *da, u8 ch, bool append_wps, int wait_ack)
+static int _issue_probereq(struct adapter *padapter,
+			   struct ndis_802_11_ssid *pssid,
+			   u8 *da, u8 ch, bool append_wps, bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame		*pmgntframe;
@@ -3394,7 +3394,7 @@ void issue_assocreq(struct adapter *padapter)
 			pframe = rtw_set_ie(pframe, EID_WPA2, pIE->Length, pIE->data, &(pattrib->pktlen));
 			break;
 		case EID_HTCapability:
-			if (padapter->mlmepriv.htpriv.ht_option == true) {
+			if (padapter->mlmepriv.htpriv.ht_option) {
 				if (!(is_ap_in_tkip(padapter))) {
 					memcpy(&(pmlmeinfo->HT_caps), pIE->data, sizeof(struct HT_caps_element));
 					pframe = rtw_set_ie(pframe, EID_HTCapability, pIE->Length, (u8 *)(&(pmlmeinfo->HT_caps)), &(pattrib->pktlen));
@@ -3403,7 +3403,7 @@ void issue_assocreq(struct adapter *padapter)
 			break;
 
 		case EID_EXTCapability:
-			if (padapter->mlmepriv.htpriv.ht_option == true)
+			if (padapter->mlmepriv.htpriv.ht_option)
 				pframe = rtw_set_ie(pframe, EID_EXTCapability, pIE->Length, pIE->data, &(pattrib->pktlen));
 			break;
 		default:
@@ -3432,7 +3432,8 @@ exit:
 }
 
 /* when wait_ack is ture, this function shoule be called at process context */
-static int _issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned int power_mode, int wait_ack)
+static int _issue_nulldata(struct adapter *padapter, unsigned char *da,
+			   unsigned int power_mode, bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame			*pmgntframe;
@@ -3593,7 +3594,8 @@ s32 issue_nulldata_in_interrupt(struct adapter *padapter, u8 *da)
 }
 
 /* when wait_ack is ture, this function shoule be called at process context */
-static int _issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16 tid, int wait_ack)
+static int _issue_qos_nulldata(struct adapter *padapter, unsigned char *da,
+			       u16 tid, bool wait_ack)
 {
 	int ret = _FAIL;
 	struct xmit_frame			*pmgntframe;
@@ -3717,7 +3719,8 @@ exit:
 	return ret;
 }
 
-static int _issue_deauth(struct adapter *padapter, unsigned char *da, unsigned short reason, u8 wait_ack)
+static int _issue_deauth(struct adapter *padapter, unsigned char *da,
+			 unsigned short reason, bool wait_ack)
 {
 	struct xmit_frame			*pmgntframe;
 	struct pkt_attrib			*pattrib;
@@ -4219,7 +4222,7 @@ unsigned int send_delba(struct adapter *padapter, u8 initiator, u8 *addr)
 
 	if (initiator == 0) {/*  recipient */
 		for (tid = 0; tid < MAXTID; tid++) {
-			if (psta->recvreorder_ctrl[tid].enable == true) {
+			if (psta->recvreorder_ctrl[tid].enable) {
 				DBG_871X("rx agg disable tid(%d)\n", tid);
 				issue_action_BA(padapter, addr, RTW_WLAN_ACTION_DELBA, (((tid << 1) | initiator)&0x1F));
 				psta->recvreorder_ctrl[tid].enable = false;
@@ -4408,7 +4411,7 @@ void site_survey(struct adapter *padapter)
 			Restore_DM_Func_Flag(padapter);
 			/* Switch_DM_Func(padapter, DYNAMIC_ALL_FUNC_ENABLE, true); */
 
-			if (is_client_associated_to_ap(padapter) == true)
+			if (is_client_associated_to_ap(padapter))
 				issue_nulldata(padapter, NULL, 0, 3, 500);
 
 			val8 = 0; /* survey done */
@@ -5049,12 +5052,12 @@ void report_survey_event(struct adapter *padapter, union recv_frame *precv_frame
 	pmlmeext = &padapter->mlmeextpriv;
 	pcmdpriv = &padapter->cmdpriv;
 
-	pcmd_obj = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd_obj = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd_obj == NULL)
 		return;
 
 	cmdsz = (sizeof(struct survey_event) + sizeof(struct C2HEvent_Header));
-	pevtcmd = (u8 *)rtw_zmalloc(cmdsz);
+	pevtcmd = rtw_zmalloc(cmdsz);
 	if (pevtcmd == NULL) {
 		kfree((u8 *)pcmd_obj);
 		return;
@@ -5102,12 +5105,12 @@ void report_surveydone_event(struct adapter *padapter)
 	struct mlme_ext_priv 	*pmlmeext = &padapter->mlmeextpriv;
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 
-	pcmd_obj = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd_obj = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd_obj == NULL)
 		return;
 
 	cmdsz = (sizeof(struct surveydone_event) + sizeof(struct C2HEvent_Header));
-	pevtcmd = (u8 *)rtw_zmalloc(cmdsz);
+	pevtcmd = rtw_zmalloc(cmdsz);
 	if (pevtcmd == NULL) {
 		kfree((u8 *)pcmd_obj);
 		return;
@@ -5149,12 +5152,12 @@ void report_join_res(struct adapter *padapter, int res)
 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 
-	pcmd_obj = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd_obj = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd_obj == NULL)
 		return;
 
 	cmdsz = (sizeof(struct joinbss_event) + sizeof(struct C2HEvent_Header));
-	pevtcmd = (u8 *)rtw_zmalloc(cmdsz);
+	pevtcmd = rtw_zmalloc(cmdsz);
 	if (pevtcmd == NULL) {
 		kfree((u8 *)pcmd_obj);
 		return;
@@ -5200,12 +5203,12 @@ void report_wmm_edca_update(struct adapter *padapter)
 	struct mlme_ext_priv 	*pmlmeext = &padapter->mlmeextpriv;
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 
-	pcmd_obj = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd_obj = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd_obj == NULL)
 		return;
 
 	cmdsz = (sizeof(struct wmm_event) + sizeof(struct C2HEvent_Header));
-	pevtcmd = (u8 *)rtw_zmalloc(cmdsz);
+	pevtcmd = rtw_zmalloc(cmdsz);
 	if (pevtcmd == NULL) {
 		kfree((u8 *)pcmd_obj);
 		return;
@@ -5246,13 +5249,13 @@ void report_del_sta_event(struct adapter *padapter, unsigned char *MacAddr, unsi
 	struct mlme_ext_priv 	*pmlmeext = &padapter->mlmeextpriv;
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 
-	pcmd_obj = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd_obj = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd_obj == NULL) {
 		return;
 	}
 
 	cmdsz = (sizeof(struct stadel_event) + sizeof(struct C2HEvent_Header));
-	pevtcmd = (u8 *)rtw_zmalloc(cmdsz);
+	pevtcmd = rtw_zmalloc(cmdsz);
 	if (pevtcmd == NULL) {
 		kfree((u8 *)pcmd_obj);
 		return;
@@ -5302,12 +5305,12 @@ void report_add_sta_event(struct adapter *padapter, unsigned char *MacAddr, int
 	struct mlme_ext_priv 	*pmlmeext = &padapter->mlmeextpriv;
 	struct cmd_priv *pcmdpriv = &padapter->cmdpriv;
 
-	pcmd_obj = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	pcmd_obj = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (pcmd_obj == NULL)
 		return;
 
 	cmdsz = (sizeof(struct stassoc_event) + sizeof(struct C2HEvent_Header));
-	pevtcmd = (u8 *)rtw_zmalloc(cmdsz);
+	pevtcmd = rtw_zmalloc(cmdsz);
 	if (pevtcmd == NULL) {
 		kfree((u8 *)pcmd_obj);
 		return;
@@ -5445,7 +5448,7 @@ static void rtw_mlmeext_disconnect(struct adapter *padapter)
 	pmlmeinfo->state = WIFI_FW_NULL_STATE;
 
 	if (state_backup == WIFI_FW_STATION_STATE) {
-		if (rtw_port_switch_chk(padapter) == true) {
+		if (rtw_port_switch_chk(padapter)) {
 			rtw_hal_set_hwreg(padapter, HW_VAR_PORT_SWITCH, NULL);
 			{
 				struct adapter *port0_iface = dvobj_get_port0_adapter(adapter_to_dvobj(padapter));
@@ -5534,7 +5537,7 @@ void mlmeext_joinbss_event_callback(struct adapter *padapter, int join_res)
 		rtw_hal_macid_wakeup(padapter, psta->mac_id);
 	}
 
-	if (rtw_port_switch_chk(padapter) == true)
+	if (rtw_port_switch_chk(padapter))
 		rtw_hal_set_hwreg(padapter, HW_VAR_PORT_SWITCH, NULL);
 
 	join_type = 2;
@@ -5659,7 +5662,7 @@ void _linked_info_dump(struct adapter *padapter)
 
 		}
 		for (i = 0; i < NUM_STA; i++) {
-			if (pdvobj->macid[i] == true) {
+			if (pdvobj->macid[i]) {
 				if (i != 1) /* skip bc/mc sta */
 					/*   tx info ============ */
 					rtw_hal_get_def_var(padapter, HW_DEF_RA_INFO_DUMP, &i);
@@ -5827,8 +5830,10 @@ void linked_status_chk(struct adapter *padapter)
 
 }
 
-void survey_timer_hdl(struct adapter *padapter)
+void survey_timer_hdl(struct timer_list *t)
 {
+	struct adapter *padapter =
+		from_timer(padapter, t, mlmeextpriv.survey_timer);
 	struct cmd_obj	*ph2c;
 	struct sitesurvey_parm	*psurveyPara;
 	struct cmd_priv 				*pcmdpriv = &padapter->cmdpriv;
@@ -5842,7 +5847,7 @@ void survey_timer_hdl(struct adapter *padapter)
 			pmlmeext->sitesurvey_res.channel_idx++;
 		}
 
-		if (pmlmeext->scan_abort == true) {
+		if (pmlmeext->scan_abort) {
 			{
 				pmlmeext->sitesurvey_res.channel_idx = pmlmeext->sitesurvey_res.ch_num;
 				DBG_871X("%s idx:%d\n", __func__
@@ -5853,12 +5858,12 @@ void survey_timer_hdl(struct adapter *padapter)
 			pmlmeext->scan_abort = false;/* reset */
 		}
 
-		ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+		ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 		if (ph2c == NULL) {
 			goto exit_survey_timer_hdl;
 		}
 
-		psurveyPara = (struct sitesurvey_parm *)rtw_zmalloc(sizeof(struct sitesurvey_parm));
+		psurveyPara = rtw_zmalloc(sizeof(struct sitesurvey_parm));
 		if (psurveyPara == NULL) {
 			kfree((unsigned char *)ph2c);
 			goto exit_survey_timer_hdl;
@@ -5874,8 +5879,10 @@ exit_survey_timer_hdl:
 	return;
 }
 
-void link_timer_hdl(struct adapter *padapter)
+void link_timer_hdl(struct timer_list *t)
 {
+	struct adapter *padapter =
+		from_timer(padapter, t, mlmeextpriv.link_timer);
 	/* static unsigned int		rx_pkt = 0; */
 	/* static u64				tx_cnt = 0; */
 	/* struct xmit_priv 	*pxmitpriv = &(padapter->xmitpriv); */
@@ -5924,8 +5931,9 @@ void link_timer_hdl(struct adapter *padapter)
 	return;
 }
 
-void addba_timer_hdl(struct sta_info *psta)
+void addba_timer_hdl(struct timer_list *t)
 {
+	struct sta_info *psta = from_timer(psta, t, addba_retry_timer);
 	struct ht_priv *phtpriv;
 
 	if (!psta)
@@ -5933,20 +5941,22 @@ void addba_timer_hdl(struct sta_info *psta)
 
 	phtpriv = &psta->htpriv;
 
-	if ((phtpriv->ht_option == true) && (phtpriv->ampdu_enable == true)) {
+	if (phtpriv->ht_option && phtpriv->ampdu_enable) {
 		if (phtpriv->candidate_tid_bitmap)
 			phtpriv->candidate_tid_bitmap = 0x0;
 
 	}
 }
 
-void sa_query_timer_hdl(struct adapter *padapter)
+void sa_query_timer_hdl(struct timer_list *t)
 {
+	struct adapter *padapter =
+		from_timer(padapter, t, mlmeextpriv.sa_query_timer);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	/* disconnect */
 	spin_lock_bh(&pmlmepriv->lock);
 
-	if (check_fwstate(pmlmepriv, _FW_LINKED) == true) {
+	if (check_fwstate(pmlmepriv, _FW_LINKED)) {
 		rtw_disassoc_cmd(padapter, 0, true);
 		rtw_indicate_disconnect(padapter);
 		rtw_free_assoc_resources(padapter, 1);
@@ -6084,7 +6094,7 @@ u8 setopmode_hdl(struct adapter *padapter, u8 *pbuf)
 		rtw_auto_ap_start_beacon(padapter);
 #endif
 
-	if (rtw_port_switch_chk(padapter) == true) {
+	if (rtw_port_switch_chk(padapter)) {
 		rtw_hal_set_hwreg(padapter, HW_VAR_PORT_SWITCH, NULL);
 
 		if (psetop->mode == Ndis802_11APMode)
@@ -6358,7 +6368,7 @@ static int rtw_scan_ch_decision(struct adapter *padapter, struct rtw_ieee80211_c
 		set_idx = rtw_ch_set_search_ch(pmlmeext->channel_set, in[i].hw_value);
 		if (in[i].hw_value && !(in[i].flags & RTW_IEEE80211_CHAN_DISABLED)
 			&& set_idx >= 0
-			&& rtw_mlme_band_check(padapter, in[i].hw_value) == true
+			&& rtw_mlme_band_check(padapter, in[i].hw_value)
 		) {
 			if (j >= out_num) {
 				DBG_871X_LEVEL(_drv_always_, FUNC_ADPT_FMT" out_num:%u not enough\n",
@@ -6383,7 +6393,7 @@ static int rtw_scan_ch_decision(struct adapter *padapter, struct rtw_ieee80211_c
 
 			DBG_871X(FUNC_ADPT_FMT" ch:%u\n", FUNC_ADPT_ARG(padapter), pmlmeext->channel_set[i].ChannelNum);
 
-			if (rtw_mlme_band_check(padapter, pmlmeext->channel_set[i].ChannelNum) == true) {
+			if (rtw_mlme_band_check(padapter, pmlmeext->channel_set[i].ChannelNum)) {
 
 				if (j >= out_num) {
 					DBG_871X_LEVEL(_drv_always_, FUNC_ADPT_FMT" out_num:%u not enough\n",
@@ -6435,7 +6445,7 @@ u8 sitesurvey_cmd_hdl(struct adapter *padapter, u8 *pbuf)
 		pmlmeext->sitesurvey_res.scan_mode = pparm->scan_mode;
 
 		/* issue null data if associating to the AP */
-		if (is_client_associated_to_ap(padapter) == true) {
+		if (is_client_associated_to_ap(padapter)) {
 			pmlmeext->sitesurvey_res.state = SCAN_TXNULL;
 
 			issue_nulldata(padapter, NULL, 1, 3, 500);
@@ -6602,7 +6612,7 @@ u8 chk_bmc_sleepq_cmd(struct adapter *padapter)
 	struct cmd_priv *pcmdpriv = &(padapter->cmdpriv);
 	u8 res = _SUCCESS;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
@@ -6626,13 +6636,13 @@ u8 set_tx_beacon_cmd(struct adapter *padapter)
 	u8 res = _SUCCESS;
 	int len_diff = 0;
 
-	ph2c = (struct cmd_obj *)rtw_zmalloc(sizeof(struct cmd_obj));
+	ph2c = rtw_zmalloc(sizeof(struct cmd_obj));
 	if (ph2c == NULL) {
 		res = _FAIL;
 		goto exit;
 	}
 
-	ptxBeacon_parm = (struct Tx_Beacon_param *)rtw_zmalloc(sizeof(struct Tx_Beacon_param));
+	ptxBeacon_parm = rtw_zmalloc(sizeof(struct Tx_Beacon_param));
 	if (ptxBeacon_parm == NULL) {
 		kfree((unsigned char *)ph2c);
 		res = _FAIL;
@@ -6767,7 +6777,7 @@ u8 chk_bmc_sleepq_hdl(struct adapter *padapter, unsigned char *pbuf)
 
 			pxmitframe->attrib.triggered = 1;
 
-			if (xmitframe_hiq_filter(pxmitframe) == true)
+			if (xmitframe_hiq_filter(pxmitframe))
 				pxmitframe->attrib.qsel = 0x11;/* HIQ */
 
 			rtw_hal_xmitframe_enqueue(padapter, pxmitframe);
@@ -6809,7 +6819,7 @@ int rtw_chk_start_clnt_join(struct adapter *padapter, u8 *ch, u8 *bw, u8 *offset
 		connect_allow = false;
 	}
 
-	if (connect_allow == true) {
+	if (connect_allow) {
 		DBG_871X("start_join_set_ch_bw: ch =%d, bwmode =%d, ch_offset =%d\n", cur_ch, cur_bw, cur_ch_offset);
 		*ch = cur_ch;
 		*bw = cur_bw;
diff --git a/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c b/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c
index aabdaafcbdd3..4a6af72013fa 100644
--- a/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c
+++ b/drivers/staging/rtl8723bs/core/rtw_pwrctrl.c
@@ -34,7 +34,7 @@ void _ips_enter(struct adapter *padapter)
 
 	if (rf_off == pwrpriv->change_rfpwrstate) {
 		pwrpriv->bpower_saving = true;
-		DBG_871X_LEVEL(_drv_always_, "nolinked power save enter\n");
+		DBG_871X("nolinked power save enter\n");
 
 		if (pwrpriv->ips_mode == IPS_LEVEL_2)
 			pwrpriv->bkeepfwalive = true;
@@ -73,7 +73,7 @@ int _ips_leave(struct adapter *padapter)
 		if (result == _SUCCESS) {
 			pwrpriv->rf_pwrstate = rf_on;
 		}
-		DBG_871X_LEVEL(_drv_always_, "nolinked power save leave\n");
+		DBG_871X("nolinked power save leave\n");
 
 		DBG_871X("==> ips_leave.....LED(0x%08x)...\n", rtw_read32(padapter, 0x4c));
 		pwrpriv->bips_processing = false;
@@ -201,10 +201,12 @@ exit:
 	return;
 }
 
-void pwr_state_check_handler(RTW_TIMER_HDL_ARGS);
-void pwr_state_check_handler(RTW_TIMER_HDL_ARGS)
+static void pwr_state_check_handler(struct timer_list *t)
 {
-	struct adapter *padapter = (struct adapter *)FunctionContext;
+	struct pwrctrl_priv *pwrctrlpriv =
+		from_timer(pwrctrlpriv, t, pwr_state_check_timer);
+	struct adapter *padapter = pwrctrlpriv->adapter;
+
 	rtw_ps_cmd(padapter);
 }
 
@@ -823,14 +825,10 @@ exit:
 /*
  * This function is a timer handler, can't do any IO in it.
  */
-static void pwr_rpwm_timeout_handler(void *FunctionContext)
+static void pwr_rpwm_timeout_handler(struct timer_list *t)
 {
-	struct adapter *padapter;
-	struct pwrctrl_priv *pwrpriv;
-
+	struct pwrctrl_priv *pwrpriv = from_timer(pwrpriv, t, pwr_rpwm_timer);
 
-	padapter = FunctionContext;
-	pwrpriv = adapter_to_pwrctl(padapter);
 	DBG_871X("+%s: rpwm = 0x%02X cpwm = 0x%02X\n", __func__, pwrpriv->rpwm, pwrpriv->cpwm);
 
 	if ((pwrpriv->rpwm == pwrpriv->cpwm) || (pwrpriv->cpwm >= PS_STATE_S2)) {
@@ -1154,7 +1152,7 @@ void rtw_init_pwrctrl_priv(struct adapter *padapter)
 
 	pwrctrlpriv->LpsIdleCount = 0;
 	pwrctrlpriv->power_mgnt = padapter->registrypriv.power_mgnt;/*  PS_MODE_MIN; */
-	pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
+	pwrctrlpriv->bLeisurePs = pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE;
 
 	pwrctrlpriv->bFwCurrentInPSMode = false;
 
@@ -1173,10 +1171,11 @@ void rtw_init_pwrctrl_priv(struct adapter *padapter)
 	_init_workitem(&pwrctrlpriv->cpwm_event, cpwm_event_callback, NULL);
 
 	pwrctrlpriv->brpwmtimeout = false;
+	pwrctrlpriv->adapter = padapter;
 	_init_workitem(&pwrctrlpriv->rpwmtimeoutwi, rpwmtimeout_workitem_callback, NULL);
-	_init_timer(&pwrctrlpriv->pwr_rpwm_timer, padapter->pnetdev, pwr_rpwm_timeout_handler, padapter);
-
-	rtw_init_timer(&pwrctrlpriv->pwr_state_check_timer, padapter, pwr_state_check_handler);
+	timer_setup(&pwrctrlpriv->pwr_rpwm_timer, pwr_rpwm_timeout_handler, 0);
+	timer_setup(&pwrctrlpriv->pwr_state_check_timer,
+		    pwr_state_check_handler, 0);
 
 	pwrctrlpriv->wowlan_mode = false;
 	pwrctrlpriv->wowlan_ap_mode = false;
@@ -1193,8 +1192,6 @@ void rtw_init_pwrctrl_priv(struct adapter *padapter)
 
 void rtw_free_pwrctrl_priv(struct adapter *adapter)
 {
-	/* memset((unsigned char *)pwrctrlpriv, 0, sizeof(struct pwrctrl_priv)); */
-
 #ifdef CONFIG_PNO_SUPPORT
 	if (pwrctrlpriv->pnlo_info != NULL)
 		printk("****** pnlo_info memory leak********\n");
@@ -1327,7 +1324,8 @@ int rtw_pm_set_lps(struct adapter *padapter, u8 mode)
 				pwrctrlpriv->LpsIdleCount = 2;
 
 			pwrctrlpriv->power_mgnt = mode;
-			pwrctrlpriv->bLeisurePs = (PS_MODE_ACTIVE != pwrctrlpriv->power_mgnt)?true:false;
+			pwrctrlpriv->bLeisurePs =
+				pwrctrlpriv->power_mgnt != PS_MODE_ACTIVE;
 		}
 	} else
 		ret = -EINVAL;
diff --git a/drivers/staging/rtl8723bs/core/rtw_recv.c b/drivers/staging/rtl8723bs/core/rtw_recv.c
index 68a6303e2754..9c7c3be0553a 100644
--- a/drivers/staging/rtl8723bs/core/rtw_recv.c
+++ b/drivers/staging/rtl8723bs/core/rtw_recv.c
@@ -26,7 +26,7 @@ u8 rtw_rfc1042_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
 u8 rtw_bridge_tunnel_header[] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
 
-void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS);
+static void rtw_signal_stat_timer_hdl(struct timer_list *t);
 
 void _rtw_init_sta_recv_priv(struct sta_recv_priv *psta_recvpriv)
 {
@@ -46,9 +46,6 @@ sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 	union recv_frame *precvframe;
 	sint	res = _SUCCESS;
 
-	/*  We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
-	/* memset((unsigned char *)precvpriv, 0, sizeof (struct  recv_priv)); */
-
 	spin_lock_init(&precvpriv->lock);
 
 	_rtw_init_queue(&precvpriv->free_recv_queue);
@@ -65,7 +62,6 @@ sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 		res = _FAIL;
 		goto exit;
 	}
-	/* memset(precvpriv->pallocated_frame_buf, 0, NR_RECVFRAME * sizeof(union recv_frame) + RXFRAME_ALIGN_SZ); */
 
 	precvpriv->precv_frame_buf = (u8 *)N_BYTE_ALIGMENT((SIZE_PTR)(precvpriv->pallocated_frame_buf), RXFRAME_ALIGN_SZ);
 	/* precvpriv->precv_frame_buf = precvpriv->pallocated_frame_buf + RXFRAME_ALIGN_SZ - */
@@ -90,7 +86,8 @@ sint _rtw_init_recv_priv(struct recv_priv *precvpriv, struct adapter *padapter)
 
 	res = rtw_hal_init_recv_priv(padapter);
 
-	rtw_init_timer(&precvpriv->signal_stat_timer, padapter, rtw_signal_stat_timer_hdl);
+	timer_setup(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl,
+		    0);
 
 	precvpriv->signal_stat_sampling_interval = 2000; /* ms */
 
@@ -129,7 +126,7 @@ union recv_frame *_rtw_alloc_recvframe(struct __queue *pfree_recv_queue)
 
 		plist = get_next(phead);
 
-		precvframe = LIST_CONTAINOR(plist, union recv_frame, u);
+		precvframe = (union recv_frame *)plist;
 
 		list_del_init(&precvframe->u.hdr.list);
 		padapter = precvframe->u.hdr.adapter;
@@ -243,7 +240,7 @@ void rtw_free_recvframe_queue(struct __queue *pframequeue,  struct __queue *pfre
 	plist = get_next(phead);
 
 	while (phead != plist) {
-		precvframe = LIST_CONTAINOR(plist, union recv_frame, u);
+		precvframe = (union recv_frame *)plist;
 
 		plist = get_next(plist);
 
@@ -1732,7 +1729,7 @@ static union recv_frame *recvframe_defrag(struct adapter *adapter,
 
 	phead = get_list_head(defrag_q);
 	plist = get_next(phead);
-	prframe = LIST_CONTAINOR(plist, union recv_frame, u);
+	prframe = (union recv_frame *)plist;
 	pfhdr = &prframe->u.hdr;
 	list_del_init(&(prframe->u.list));
 
@@ -1754,7 +1751,7 @@ static union recv_frame *recvframe_defrag(struct adapter *adapter,
 	data = get_recvframe_data(prframe);
 
 	while (phead != plist) {
-		pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u);
+		pnextrframe = (union recv_frame *)plist;
 		pnfhdr = &pnextrframe->u.hdr;
 
 
@@ -2071,7 +2068,7 @@ int enqueue_reorder_recvframe(struct recv_reorder_ctrl *preorder_ctrl, union rec
 	plist = get_next(phead);
 
 	while (phead != plist) {
-		pnextrframe = LIST_CONTAINOR(plist, union recv_frame, u);
+		pnextrframe = (union recv_frame *)plist;
 		pnextattrib = &pnextrframe->u.hdr.attrib;
 
 		if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num))
@@ -2146,7 +2143,7 @@ int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctr
 			return true;
 		}
 
-		prframe = LIST_CONTAINOR(plist, union recv_frame, u);
+		prframe = (union recv_frame *)plist;
 		pattrib = &prframe->u.hdr.attrib;
 
 		#ifdef DBG_RX_SEQ
@@ -2162,7 +2159,7 @@ int recv_indicatepkts_in_order(struct adapter *padapter, struct recv_reorder_ctr
 	/*  Check if there is any packet need indicate. */
 	while (!list_empty(phead)) {
 
-		prframe = LIST_CONTAINOR(plist, union recv_frame, u);
+		prframe = (union recv_frame *)plist;
 		pattrib = &prframe->u.hdr.attrib;
 
 		if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) {
@@ -2358,9 +2355,10 @@ _err_exit:
 }
 
 
-void rtw_reordering_ctrl_timeout_handler(void *pcontext)
+void rtw_reordering_ctrl_timeout_handler(struct timer_list *t)
 {
-	struct recv_reorder_ctrl *preorder_ctrl = pcontext;
+	struct recv_reorder_ctrl *preorder_ctrl =
+		from_timer(preorder_ctrl, t, reordering_ctrl_timer);
 	struct adapter *padapter = preorder_ctrl->padapter;
 	struct __queue *ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
 
@@ -2601,9 +2599,10 @@ _recv_entry_drop:
 	return ret;
 }
 
-void rtw_signal_stat_timer_hdl(RTW_TIMER_HDL_ARGS)
+static void rtw_signal_stat_timer_hdl(struct timer_list *t)
 {
-	struct adapter *adapter = (struct adapter *)FunctionContext;
+	struct adapter *adapter =
+		from_timer(adapter, t, recvpriv.signal_stat_timer);
 	struct recv_priv *recvpriv = &adapter->recvpriv;
 
 	u32 tmp_s, tmp_q;
diff --git a/drivers/staging/rtl8723bs/core/rtw_rf.c b/drivers/staging/rtl8723bs/core/rtw_rf.c
index b87ea4e388c0..07f5577cc073 100644
--- a/drivers/staging/rtl8723bs/core/rtw_rf.c
+++ b/drivers/staging/rtl8723bs/core/rtw_rf.c
@@ -15,6 +15,7 @@
 #define _RTW_RF_C_
 
 #include <drv_types.h>
+#include <linux/kernel.h>
 
 
 struct ch_freq {
@@ -44,20 +45,18 @@ static struct ch_freq ch_freq_map[] = {
 	{216, 5080},/* Japan, means J16 */
 };
 
-static int ch_freq_map_num = (sizeof(ch_freq_map) / sizeof(struct ch_freq));
-
 u32 rtw_ch2freq(u32 channel)
 {
 	u8 i;
 	u32 freq = 0;
 
-	for (i = 0; i < ch_freq_map_num; i++) {
+	for (i = 0; i < ARRAY_SIZE(ch_freq_map); i++) {
 		if (channel == ch_freq_map[i].channel) {
 			freq = ch_freq_map[i].frequency;
 				break;
 		}
 	}
-	if (i == ch_freq_map_num)
+	if (i == ARRAY_SIZE(ch_freq_map))
 		freq = 2412;
 
 	return freq;
diff --git a/drivers/staging/rtl8723bs/core/rtw_security.c b/drivers/staging/rtl8723bs/core/rtw_security.c
index 06a7e4059fbb..aadf67bd0559 100644
--- a/drivers/staging/rtl8723bs/core/rtw_security.c
+++ b/drivers/staging/rtl8723bs/core/rtw_security.c
@@ -2272,7 +2272,7 @@ static void *aes_encrypt_init(u8 *key, size_t len)
 	u32 *rk;
 	if (len != 16)
 		return NULL;
-	rk = (u32 *)rtw_malloc(AES_PRIV_SIZE);
+	rk = rtw_malloc(AES_PRIV_SIZE);
 	if (rk == NULL)
 		return NULL;
 	rijndaelKeySetupEnc(rk, key);
diff --git a/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c b/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
index cb43ec90a648..03dd6848daa1 100644
--- a/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8723bs/core/rtw_sta_mgt.c
@@ -429,7 +429,7 @@ u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta)
 		plist = get_next(phead);
 
 		while (!list_empty(phead)) {
-			prframe = LIST_CONTAINOR(plist, union recv_frame, u);
+			prframe = (union recv_frame *)plist;
 
 			plist = get_next(plist);
 
@@ -604,10 +604,10 @@ struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter)
 
 u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr)
 {
-	u8 res = true;
+	bool res = true;
 	struct list_head	*plist, *phead;
 	struct rtw_wlan_acl_node *paclnode;
-	u8 match = false;
+	bool match = false;
 	struct sta_priv *pstapriv = &padapter->stapriv;
 	struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
 	struct __queue	*pacl_node_q = &pacl_list->acl_node_q;
@@ -630,10 +630,10 @@ u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr)
 
 
 	if (pacl_list->mode == 1) /* accept unless in deny list */
-		res = (match == true) ?  false:true;
+		res = !match;
 
 	else if (pacl_list->mode == 2)/* deny unless in accept list */
-		res = (match == true) ?  true:false;
+		res = match;
 	else
 		 res = true;
 
diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
index f485f541e36d..f6dc26c8bd3d 100644
--- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c
@@ -1359,7 +1359,7 @@ int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len)
 		return true;
 	}
 
-	bssid = (struct wlan_bssid_ex *)rtw_zmalloc(sizeof(struct wlan_bssid_ex));
+	bssid = rtw_zmalloc(sizeof(struct wlan_bssid_ex));
 	if (bssid == NULL) {
 		DBG_871X("%s rtw_zmalloc fail !!!\n", __func__);
 		return true;
@@ -1946,7 +1946,7 @@ void process_addba_req(struct adapter *padapter, u8 *paddba_req, u8 *addr)
 		preorder_ctrl->indicate_seq = 0xffff;
 		#endif
 
-		preorder_ctrl->enable = (pmlmeinfo->bAcceptAddbaReq == true) ? true : false;
+		preorder_ctrl->enable = pmlmeinfo->accept_addba_req;
 	}
 
 }
diff --git a/drivers/staging/rtl8723bs/core/rtw_xmit.c b/drivers/staging/rtl8723bs/core/rtw_xmit.c
index 022f654419e4..be54186fb223 100644
--- a/drivers/staging/rtl8723bs/core/rtw_xmit.c
+++ b/drivers/staging/rtl8723bs/core/rtw_xmit.c
@@ -51,9 +51,6 @@ s32	_rtw_init_xmit_priv(struct xmit_priv *pxmitpriv, struct adapter *padapter)
 	struct xmit_frame *pxframe;
 	sint	res = _SUCCESS;
 
-	/*  We don't need to memset padapter->XXX to zero, because adapter is allocated by vzalloc(). */
-	/* memset((unsigned char *)pxmitpriv, 0, sizeof(struct xmit_priv)); */
-
 	spin_lock_init(&pxmitpriv->lock);
 	spin_lock_init(&pxmitpriv->lock_sctx);
 	sema_init(&pxmitpriv->xmit_sema, 0);
@@ -2166,7 +2163,7 @@ void rtw_alloc_hwxmits(struct adapter *padapter)
 
 	pxmitpriv->hwxmits = NULL;
 
-	pxmitpriv->hwxmits = (struct hw_xmit *)rtw_zmalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry);
+	pxmitpriv->hwxmits = rtw_zmalloc(sizeof(struct hw_xmit) * pxmitpriv->hwxmit_entry);
 
 	if (pxmitpriv->hwxmits == NULL) {
 		DBG_871X("alloc hwxmits fail!...\n");
diff --git a/drivers/staging/rtl8723bs/hal/Hal8723BReg.h b/drivers/staging/rtl8723bs/hal/Hal8723BReg.h
index 152a198c8f17..ce02457922b7 100644
--- a/drivers/staging/rtl8723bs/hal/Hal8723BReg.h
+++ b/drivers/staging/rtl8723bs/hal/Hal8723BReg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*****************************************************************************
  *Copyright(c) 2009,  RealTEK Technology Inc. All Right Reserved.
  *
diff --git a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c
index 51d4219177d3..951585467ab1 100644
--- a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c
+++ b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_BB.c
@@ -13,7 +13,7 @@
 *
 ******************************************************************************/
 
-
+#include <linux/kernel.h>
 #include "odm_precomp.h"
 
 static bool CheckPositive(
@@ -268,7 +268,7 @@ static u32 Array_MP_8723B_AGC_TAB[] = {
 void ODM_ReadAndConfig_MP_8723B_AGC_TAB(PDM_ODM_T pDM_Odm)
 {
 	u32 i = 0;
-	u32 ArrayLen = sizeof(Array_MP_8723B_AGC_TAB)/sizeof(u32);
+	u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_AGC_TAB);
 	u32 *Array = Array_MP_8723B_AGC_TAB;
 
 	ODM_RT_TRACE(
@@ -537,7 +537,7 @@ static u32 Array_MP_8723B_PHY_REG[] = {
 void ODM_ReadAndConfig_MP_8723B_PHY_REG(PDM_ODM_T pDM_Odm)
 {
 	u32 i = 0;
-	u32 ArrayLen = sizeof(Array_MP_8723B_PHY_REG)/sizeof(u32);
+	u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_PHY_REG);
 	u32 *Array = Array_MP_8723B_PHY_REG;
 
 	ODM_RT_TRACE(
@@ -617,7 +617,6 @@ static u32 Array_MP_8723B_PHY_REG_PG[] = {
 void ODM_ReadAndConfig_MP_8723B_PHY_REG_PG(PDM_ODM_T pDM_Odm)
 {
 	u32 i = 0;
-	u32 ArrayLen = sizeof(Array_MP_8723B_PHY_REG_PG)/sizeof(u32);
 	u32 *Array = Array_MP_8723B_PHY_REG_PG;
 
 	ODM_RT_TRACE(
@@ -630,7 +629,7 @@ void ODM_ReadAndConfig_MP_8723B_PHY_REG_PG(PDM_ODM_T pDM_Odm)
 	pDM_Odm->PhyRegPgVersion = 1;
 	pDM_Odm->PhyRegPgValueType = PHY_REG_PG_EXACT_VALUE;
 
-	for (i = 0; i < ArrayLen; i += 6) {
+	for (i = 0; i < ARRAY_SIZE(Array_MP_8723B_PHY_REG_PG); i += 6) {
 		u32 v1 = Array[i];
 		u32 v2 = Array[i+1];
 		u32 v3 = Array[i+2];
diff --git a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c
index b868e26f20ac..7f8afa1be1ca 100644
--- a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c
+++ b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_MAC.c
@@ -13,7 +13,7 @@
 *
 ******************************************************************************/
 
-
+#include <linux/kernel.h>
 #include "odm_precomp.h"
 
 static bool CheckPositive(
@@ -239,7 +239,7 @@ static u32 Array_MP_8723B_MAC_REG[] = {
 void ODM_ReadAndConfig_MP_8723B_MAC_REG(PDM_ODM_T pDM_Odm)
 {
 	u32 i = 0;
-	u32 ArrayLen = sizeof(Array_MP_8723B_MAC_REG)/sizeof(u32);
+	u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_MAC_REG);
 	u32 *Array = Array_MP_8723B_MAC_REG;
 
 	ODM_RT_TRACE(
diff --git a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c
index 84a0be7ba697..fadfcbd91858 100644
--- a/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c
+++ b/drivers/staging/rtl8723bs/hal/HalHWImg8723B_RF.c
@@ -13,7 +13,7 @@
 *
 ******************************************************************************/
 
-
+#include <linux/kernel.h>
 #include "odm_precomp.h"
 
 static bool CheckPositive(
@@ -270,7 +270,7 @@ static u32 Array_MP_8723B_RadioA[] = {
 void ODM_ReadAndConfig_MP_8723B_RadioA(PDM_ODM_T pDM_Odm)
 {
 	u32 i = 0;
-	u32 ArrayLen = sizeof(Array_MP_8723B_RadioA)/sizeof(u32);
+	u32 ArrayLen = ARRAY_SIZE(Array_MP_8723B_RadioA);
 	u32 *Array = Array_MP_8723B_RadioA;
 
 	ODM_RT_TRACE(
@@ -766,7 +766,6 @@ static u8 *Array_MP_8723B_TXPWR_LMT[] = {
 void ODM_ReadAndConfig_MP_8723B_TXPWR_LMT(PDM_ODM_T pDM_Odm)
 {
 	u32 i = 0;
-	u32 ArrayLen = sizeof(Array_MP_8723B_TXPWR_LMT)/sizeof(u8 *);
 	u8 **Array = Array_MP_8723B_TXPWR_LMT;
 
 	ODM_RT_TRACE(
@@ -776,7 +775,7 @@ void ODM_ReadAndConfig_MP_8723B_TXPWR_LMT(PDM_ODM_T pDM_Odm)
 		("===> ODM_ReadAndConfig_MP_8723B_TXPWR_LMT\n")
 	);
 
-	for (i = 0; i < ArrayLen; i += 7) {
+	for (i = 0; i < ARRAY_SIZE(Array_MP_8723B_TXPWR_LMT); i += 7) {
 		u8 *regulation = Array[i];
 		u8 *band = Array[i+1];
 		u8 *bandwidth = Array[i+2];
diff --git a/drivers/staging/rtl8723bs/hal/hal_btcoex.c b/drivers/staging/rtl8723bs/hal/hal_btcoex.c
index 86fee109e42d..7d4df5a8832e 100644
--- a/drivers/staging/rtl8723bs/hal/hal_btcoex.c
+++ b/drivers/staging/rtl8723bs/hal/hal_btcoex.c
@@ -463,7 +463,7 @@ static u8 halbtcoutsrc_Get(void *pBtcContext, u8 getType, void *pOutBuf)
 		break;
 
 	case BTC_GET_BL_WIFI_UNDER_5G:
-		*pu8 = (pHalData->CurrentBandType == 1) ? true : false;
+		*pu8 = pHalData->CurrentBandType == 1;
 		break;
 
 	case BTC_GET_BL_WIFI_AP_MODE_ENABLE:
@@ -1411,15 +1411,8 @@ void hal_btcoex_SetSingleAntPath(struct adapter *padapter, u8 singleAntPath)
 
 u8 hal_btcoex_Initialize(struct adapter *padapter)
 {
-	u8 ret1;
-	u8 ret2;
-
-
 	memset(&GLBtCoexist, 0, sizeof(GLBtCoexist));
-	ret1 = EXhalbtcoutsrc_InitlizeVariables((void *)padapter);
-	ret2 = (ret1 == true) ? true : false;
-
-	return ret2;
+	return EXhalbtcoutsrc_InitlizeVariables((void *)padapter);
 }
 
 void hal_btcoex_PowerOnSetting(struct adapter *padapter)
diff --git a/drivers/staging/rtl8723bs/hal/hal_com.c b/drivers/staging/rtl8723bs/hal/hal_com.c
index 3e63b6d9c097..dec887a5b338 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com.c
@@ -14,6 +14,7 @@
  ******************************************************************************/
 #define _HAL_COM_C_
 
+#include <linux/kernel.h>
 #include <drv_types.h>
 #include <rtw_debug.h>
 #include "hal_com_h2c.h"
@@ -1622,7 +1623,7 @@ void rtw_get_raw_rssi_info(void *sel, struct adapter *padapter)
 		psample_pkt_rssi->pwdball, psample_pkt_rssi->pwr_all
 	);
 
-	isCCKrate = (psample_pkt_rssi->data_rate <= DESC_RATE11M) ? true : false;
+	isCCKrate = psample_pkt_rssi->data_rate <= DESC_RATE11M;
 
 	if (isCCKrate)
 		psample_pkt_rssi->mimo_singal_strength[0] = psample_pkt_rssi->pwdball;
@@ -1655,7 +1656,7 @@ void rtw_dump_raw_rssi_info(struct adapter *padapter)
 	DBG_871X("RxRate = %s, PWDBALL = %d(%%), rx_pwr_all = %d(dBm)\n",
 			HDATA_RATE(psample_pkt_rssi->data_rate), psample_pkt_rssi->pwdball, psample_pkt_rssi->pwr_all);
 
-	isCCKrate = (psample_pkt_rssi->data_rate <= DESC_RATE11M) ? true : false;
+	isCCKrate = psample_pkt_rssi->data_rate <= DESC_RATE11M;
 
 	if (isCCKrate)
 		psample_pkt_rssi->mimo_singal_strength[0] = psample_pkt_rssi->pwdball;
@@ -1683,7 +1684,7 @@ void rtw_store_phy_info(struct adapter *padapter, union recv_frame *prframe)
 	struct rx_raw_rssi *psample_pkt_rssi = &padapter->recvpriv.raw_rssi_info;
 
 	psample_pkt_rssi->data_rate = pattrib->data_rate;
-	isCCKrate = (pattrib->data_rate <= DESC_RATE11M) ? true : false;
+	isCCKrate = pattrib->data_rate <= DESC_RATE11M;
 
 	psample_pkt_rssi->pwdball = pPhyInfo->RxPWDBAll;
 	psample_pkt_rssi->pwr_all = pPhyInfo->RecvSignalPower;
@@ -1716,7 +1717,6 @@ void rtw_bb_rf_gain_offset(struct adapter *padapter)
 {
 	u8 value = padapter->eeprompriv.EEPROMRFGainOffset;
 	u32 res, i = 0;
-	u32 ArrayLen = sizeof(Array_kfreemap)/sizeof(u32);
 	u32 *Array = Array_kfreemap;
 	u32 v1 = 0, v2 = 0, target = 0;
 	/* DBG_871X("+%s value: 0x%02x+\n", __func__, value); */
@@ -1729,7 +1729,7 @@ void rtw_bb_rf_gain_offset(struct adapter *padapter)
 			res &= 0xfff87fff;
 			DBG_871X("Offset RF Gain. before reg 0x7f = 0x%08x\n", res);
 			/* res &= 0xfff87fff; */
-			for (i = 0; i < ArrayLen; i += 2) {
+			for (i = 0; i < ARRAY_SIZE(Array_kfreemap); i += 2) {
 				v1 = Array[i];
 				v2 = Array[i+1];
 				if (v1 == padapter->eeprompriv.EEPROMRFGainVal) {
diff --git a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
index 566b6f0997da..e6787c22e00b 100644
--- a/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
+++ b/drivers/staging/rtl8723bs/hal/hal_com_phycfg.c
@@ -17,6 +17,7 @@
 #include <drv_types.h>
 #include <rtw_debug.h>
 #include <hal_data.h>
+#include <linux/kernel.h>
 
 u8 PHY_GetTxPowerByRateBase(struct adapter *Adapter, u8 Band, u8 RfPath,
 			    u8 TxNum, enum RATE_SECTION RateSection)
@@ -860,7 +861,7 @@ struct adapter *padapter
 			for (txNum = RF_1TX; txNum < RF_MAX_TX_NUM; ++txNum) {
 				/*  CCK */
 				base = PHY_GetTxPowerByRate(padapter, band, path, txNum, MGN_11M);
-				for (i = 0; i < sizeof(cckRates); ++i) {
+				for (i = 0; i < ARRAY_SIZE(cckRates); ++i) {
 					value = PHY_GetTxPowerByRate(padapter, band, path, txNum, cckRates[i]);
 					PHY_SetTxPowerByRate(padapter, band, path, txNum, cckRates[i], value - base);
 				}
@@ -939,58 +940,78 @@ void PHY_SetTxPowerIndexByRateSection(
 	if (RateSection == CCK) {
 		u8 cckRates[]   = {MGN_1M, MGN_2M, MGN_5_5M, MGN_11M};
 		if (pHalData->CurrentBandType == BAND_ON_2_4G)
-			PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									  cckRates, sizeof(cckRates)/sizeof(u8));
+			PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+						     pHalData->CurrentChannelBW,
+						     Channel, cckRates,
+						     ARRAY_SIZE(cckRates));
 
 	} else if (RateSection == OFDM) {
 		u8 ofdmRates[]  = {MGN_6M, MGN_9M, MGN_12M, MGN_18M, MGN_24M, MGN_36M, MGN_48M, MGN_54M};
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									 ofdmRates, sizeof(ofdmRates)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, ofdmRates,
+					       ARRAY_SIZE(ofdmRates));
 
 	} else if (RateSection == HT_MCS0_MCS7) {
 		u8 htRates1T[]  = {MGN_MCS0, MGN_MCS1, MGN_MCS2, MGN_MCS3, MGN_MCS4, MGN_MCS5, MGN_MCS6, MGN_MCS7};
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									 htRates1T, sizeof(htRates1T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, htRates1T,
+					       ARRAY_SIZE(htRates1T));
 
 	} else if (RateSection == HT_MCS8_MCS15) {
 		u8 htRates2T[]  = {MGN_MCS8, MGN_MCS9, MGN_MCS10, MGN_MCS11, MGN_MCS12, MGN_MCS13, MGN_MCS14, MGN_MCS15};
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									 htRates2T, sizeof(htRates2T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, htRates2T,
+					       ARRAY_SIZE(htRates2T));
 
 	} else if (RateSection == HT_MCS16_MCS23) {
 		u8 htRates3T[]  = {MGN_MCS16, MGN_MCS17, MGN_MCS18, MGN_MCS19, MGN_MCS20, MGN_MCS21, MGN_MCS22, MGN_MCS23};
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									 htRates3T, sizeof(htRates3T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, htRates3T,
+					       ARRAY_SIZE(htRates3T));
 
 	} else if (RateSection == HT_MCS24_MCS31) {
 		u8 htRates4T[]  = {MGN_MCS24, MGN_MCS25, MGN_MCS26, MGN_MCS27, MGN_MCS28, MGN_MCS29, MGN_MCS30, MGN_MCS31};
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									 htRates4T, sizeof(htRates4T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, htRates4T,
+					       ARRAY_SIZE(htRates4T));
 
 	} else if (RateSection == VHT_1SSMCS0_1SSMCS9) {
 		u8 vhtRates1T[] = {MGN_VHT1SS_MCS0, MGN_VHT1SS_MCS1, MGN_VHT1SS_MCS2, MGN_VHT1SS_MCS3, MGN_VHT1SS_MCS4,
 				MGN_VHT1SS_MCS5, MGN_VHT1SS_MCS6, MGN_VHT1SS_MCS7, MGN_VHT1SS_MCS8, MGN_VHT1SS_MCS9};
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-									vhtRates1T, sizeof(vhtRates1T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, vhtRates1T,
+					       ARRAY_SIZE(vhtRates1T));
 
 	} else if (RateSection == VHT_2SSMCS0_2SSMCS9) {
 		u8 vhtRates2T[] = {MGN_VHT2SS_MCS0, MGN_VHT2SS_MCS1, MGN_VHT2SS_MCS2, MGN_VHT2SS_MCS3, MGN_VHT2SS_MCS4,
 				MGN_VHT2SS_MCS5, MGN_VHT2SS_MCS6, MGN_VHT2SS_MCS7, MGN_VHT2SS_MCS8, MGN_VHT2SS_MCS9};
 
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-								  vhtRates2T, sizeof(vhtRates2T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, vhtRates2T,
+					       ARRAY_SIZE(vhtRates2T));
 	} else if (RateSection == VHT_3SSMCS0_3SSMCS9) {
 		u8 vhtRates3T[] = {MGN_VHT3SS_MCS0, MGN_VHT3SS_MCS1, MGN_VHT3SS_MCS2, MGN_VHT3SS_MCS3, MGN_VHT3SS_MCS4,
 				MGN_VHT3SS_MCS5, MGN_VHT3SS_MCS6, MGN_VHT3SS_MCS7, MGN_VHT3SS_MCS8, MGN_VHT3SS_MCS9};
 
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-								  vhtRates3T, sizeof(vhtRates3T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, vhtRates3T,
+					       ARRAY_SIZE(vhtRates3T));
 	} else if (RateSection == VHT_4SSMCS0_4SSMCS9) {
 		u8 vhtRates4T[] = {MGN_VHT4SS_MCS0, MGN_VHT4SS_MCS1, MGN_VHT4SS_MCS2, MGN_VHT4SS_MCS3, MGN_VHT4SS_MCS4,
 				MGN_VHT4SS_MCS5, MGN_VHT4SS_MCS6, MGN_VHT4SS_MCS7, MGN_VHT4SS_MCS8, MGN_VHT4SS_MCS9};
 
-		PHY_SetTxPowerIndexByRateArray(padapter, RFPath, pHalData->CurrentChannelBW, Channel,
-								  vhtRates4T, sizeof(vhtRates4T)/sizeof(u8));
+		PHY_SetTxPowerIndexByRateArray(padapter, RFPath,
+					       pHalData->CurrentChannelBW,
+					       Channel, vhtRates4T,
+					       ARRAY_SIZE(vhtRates4T));
 	} else
 		DBG_871X("Invalid RateSection %d in %s", RateSection, __func__);
 }
@@ -1012,7 +1033,7 @@ static bool phy_GetChnlIndex(u8 Channel, u8 *ChannelIdx)
 	} else {
 		bIn24G = false;
 
-		for (i = 0; i < sizeof(channel5G)/sizeof(u8); ++i) {
+		for (i = 0; i < ARRAY_SIZE(channel5G); ++i) {
 			if (channel5G[i] == Channel) {
 				*ChannelIdx = i;
 				return bIn24G;
@@ -1149,7 +1170,7 @@ u8 PHY_GetTxPowerIndexBase(
 		} else if (BandWidth == CHANNEL_WIDTH_80) { /*  BW80-1S, BW80-2S */
 			/*  <20121220, Kordan> Get the index of array "Index5G_BW80_Base". */
 			u8 channel5G_80M[CHANNEL_MAX_NUMBER_5G_80M] = {42, 58, 106, 122, 138, 155, 171};
-			for (i = 0; i < sizeof(channel5G_80M)/sizeof(u8); ++i)
+			for (i = 0; i < ARRAY_SIZE(channel5G_80M); ++i)
 				if (channel5G_80M[i] == Channel)
 					chnlIdx = i;
 
@@ -1588,7 +1609,7 @@ static s8 phy_GetChannelIndexOfTxPowerLimit(u8 Band, u8 Channel)
 	if (Band == BAND_ON_2_4G)
 		channelIndex = Channel - 1;
 	else if (Band == BAND_ON_5G) {
-		for (i = 0; i < sizeof(channel5G)/sizeof(u8); ++i) {
+		for (i = 0; i < ARRAY_SIZE(channel5G); ++i) {
 			if (channel5G[i] == Channel)
 				channelIndex = i;
 		}
diff --git a/drivers/staging/rtl8723bs/hal/odm_CfoTracking.c b/drivers/staging/rtl8723bs/hal/odm_CfoTracking.c
index 9cde6c66235b..71853e6f7106 100644
--- a/drivers/staging/rtl8723bs/hal/odm_CfoTracking.c
+++ b/drivers/staging/rtl8723bs/hal/odm_CfoTracking.c
@@ -23,7 +23,7 @@ static void odm_SetCrystalCap(void *pDM_VOID, u8 CrystalCap)
 	struct adapter *Adapter = pDM_Odm->Adapter;
 	struct hal_com_data *pHalData = GET_HAL_DATA(Adapter);
 
-	bEEPROMCheck = (pHalData->EEPROMVersion >= 0x01) ? true : false;
+	bEEPROMCheck = pHalData->EEPROMVersion >= 0x01;
 
 	if (pCfoTrack->CrystalCap == CrystalCap)
 		return;
diff --git a/drivers/staging/rtl8723bs/hal/odm_DIG.c b/drivers/staging/rtl8723bs/hal/odm_DIG.c
index 0bde9444471d..f02eb63a45ce 100644
--- a/drivers/staging/rtl8723bs/hal/odm_DIG.c
+++ b/drivers/staging/rtl8723bs/hal/odm_DIG.c
@@ -553,7 +553,7 @@ void odm_DIG(void *pDM_VOID)
 	dm_dig_min = DM_DIG_MIN_NIC;
 	DIG_MaxOfMin = DM_DIG_MAX_AP;
 
-	ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("odm_DIG(): Absolutly upper bound = 0x%x, lower bound = 0x%x\n", dm_dig_max, dm_dig_min));
+	ODM_RT_TRACE(pDM_Odm, ODM_COMP_DIG, ODM_DBG_LOUD, ("odm_DIG(): Absolutely upper bound = 0x%x, lower bound = 0x%x\n", dm_dig_max, dm_dig_min));
 
 	/* 1 Adjust boundary by RSSI */
 	if (pDM_Odm->bLinked && bPerformance) {
diff --git a/drivers/staging/rtl8723bs/hal/odm_HWConfig.c b/drivers/staging/rtl8723bs/hal/odm_HWConfig.c
index ba2700135b60..8dd6da8a4e26 100644
--- a/drivers/staging/rtl8723bs/hal/odm_HWConfig.c
+++ b/drivers/staging/rtl8723bs/hal/odm_HWConfig.c
@@ -106,7 +106,7 @@ static void odm_RxPhyStatus92CSeries_Parsing(
 	u8 LNA_idx, VGA_idx;
 	PPHY_STATUS_RPT_8192CD_T pPhyStaRpt = (PPHY_STATUS_RPT_8192CD_T)pPhyStatus;
 
-	isCCKrate = (pPktinfo->DataRate <= DESC_RATE11M) ? true : false;
+	isCCKrate = pPktinfo->DataRate <= DESC_RATE11M;
 	pPhyInfo->RxMIMOSignalQuality[ODM_RF_PATH_A] = -1;
 	pPhyInfo->RxMIMOSignalQuality[ODM_RF_PATH_B] = -1;
 
diff --git a/drivers/staging/rtl8723bs/hal/rtl8723b_hal_init.c b/drivers/staging/rtl8723bs/hal/rtl8723b_hal_init.c
index 1565f2d67ea4..d6cef9e8378d 100644
--- a/drivers/staging/rtl8723bs/hal/rtl8723b_hal_init.c
+++ b/drivers/staging/rtl8723bs/hal/rtl8723b_hal_init.c
@@ -891,7 +891,7 @@ static void hal_ReadEFuse_WiFi(
 		return;
 	}
 
-	efuseTbl = (u8 *)rtw_malloc(EFUSE_MAX_MAP_LEN);
+	efuseTbl = rtw_malloc(EFUSE_MAX_MAP_LEN);
 	if (efuseTbl == NULL) {
 		DBG_8192C("%s: alloc efuseTbl fail!\n", __func__);
 		return;
diff --git a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
index d0b317077511..6281dfa1a3ca 100644
--- a/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
+++ b/drivers/staging/rtl8723bs/hal/rtl8723bs_xmit.c
@@ -113,7 +113,7 @@ query_free_page:
 		RT_TRACE(
 			_module_hal_xmit_c_,
 			_drv_notice_,
-			("%s: bSurpriseRemoved(wirte port)\n", __func__)
+			("%s: bSurpriseRemoved(write port)\n", __func__)
 		);
 		goto free_xmitbuf;
 	}
diff --git a/drivers/staging/rtl8723bs/hal/sdio_halinit.c b/drivers/staging/rtl8723bs/hal/sdio_halinit.c
index 6dfb06a49d41..1af77add6af4 100644
--- a/drivers/staging/rtl8723bs/hal/sdio_halinit.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_halinit.c
@@ -1019,8 +1019,8 @@ static u32 rtl8723bs_hal_init(struct adapter *padapter)
 
 			rtw_btcoex_IQKNotify(padapter, true);
 
-			restore_iqk_rst = (pwrpriv->bips_processing == true) ? true : false;
-			b2Ant = pHalData->EEPROMBluetoothAntNum == Ant_x2 ? true : false;
+			restore_iqk_rst = pwrpriv->bips_processing;
+			b2Ant = pHalData->EEPROMBluetoothAntNum == Ant_x2;
 			PHY_IQCalibrate_8723B(padapter, false, restore_iqk_rst, b2Ant, pHalData->ant_path);
 			pHalData->odmpriv.RFCalibrateInfo.bIQKInitialized = true;
 
diff --git a/drivers/staging/rtl8723bs/hal/sdio_ops.c b/drivers/staging/rtl8723bs/hal/sdio_ops.c
index 1d1b14dedd35..9a4c24861947 100644
--- a/drivers/staging/rtl8723bs/hal/sdio_ops.c
+++ b/drivers/staging/rtl8723bs/hal/sdio_ops.c
@@ -218,7 +218,7 @@ static u32 sdio_read32(struct intf_hdl *pintfhdl, u32 addr)
 	} else {
 		u8 *ptmpbuf;
 
-		ptmpbuf = (u8 *)rtw_malloc(8);
+		ptmpbuf = rtw_malloc(8);
 		if (NULL == ptmpbuf) {
 			DBG_8192C(KERN_ERR "%s: Allocate memory FAIL!(size =8) addr = 0x%x\n", __func__, addr);
 			return SDIO_ERR_VAL32;
@@ -594,7 +594,7 @@ static s32 _sdio_local_read(
 	}
 
 	n = RND4(cnt);
-	ptmpbuf = (u8 *)rtw_malloc(n);
+	ptmpbuf = rtw_malloc(n);
 	if (!ptmpbuf)
 		return (-1);
 
@@ -637,7 +637,7 @@ s32 sdio_local_read(
 	}
 
 	n = RND4(cnt);
-	ptmpbuf = (u8 *)rtw_malloc(n);
+	ptmpbuf = rtw_malloc(n);
 	if (!ptmpbuf)
 		return (-1);
 
@@ -684,7 +684,7 @@ s32 sdio_local_write(
 		return err;
 	}
 
-	ptmpbuf = (u8 *)rtw_malloc(cnt);
+	ptmpbuf = rtw_malloc(cnt);
 	if (!ptmpbuf)
 		return (-1);
 
@@ -1108,7 +1108,7 @@ void sd_int_dpc(struct adapter *padapter)
 		struct c2h_evt_hdr_88xx *c2h_evt;
 
 		DBG_8192C("%s: C2H Command\n", __func__);
-		c2h_evt = (struct c2h_evt_hdr_88xx *)rtw_zmalloc(16);
+		c2h_evt = rtw_zmalloc(16);
 		if (c2h_evt != NULL) {
 			if (rtw_hal_c2h_evt_read(padapter, (u8 *)c2h_evt) == _SUCCESS) {
 				if (c2h_id_filter_ccx_8723b((u8 *)c2h_evt)) {
diff --git a/drivers/staging/rtl8723bs/include/Hal8723BPwrSeq.h b/drivers/staging/rtl8723bs/include/Hal8723BPwrSeq.h
index 796449c3f430..130a94879805 100644
--- a/drivers/staging/rtl8723bs/include/Hal8723BPwrSeq.h
+++ b/drivers/staging/rtl8723bs/include/Hal8723BPwrSeq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef REALTEK_POWER_SEQUENCE_8723B
 #define REALTEK_POWER_SEQUENCE_8723B
 
diff --git a/drivers/staging/rtl8723bs/include/drv_types.h b/drivers/staging/rtl8723bs/include/drv_types.h
index 4d14fbc5a1fe..32129ac8e169 100644
--- a/drivers/staging/rtl8723bs/include/drv_types.h
+++ b/drivers/staging/rtl8723bs/include/drv_types.h
@@ -177,7 +177,8 @@ struct registry_priv
 	u8 bt_ampdu;
 	s8	ant_num;
 
-	bool	bAcceptAddbaReq;
+	/* false:Reject AP's Add BA req, true:accept AP's Add BA req */
+	bool	accept_addba_req;
 
 	u8 antdiv_cfg;
 	u8 antdiv_type;
diff --git a/drivers/staging/rtl8723bs/include/osdep_service.h b/drivers/staging/rtl8723bs/include/osdep_service.h
index ac9ffe0e3b84..e62ed71e1d80 100644
--- a/drivers/staging/rtl8723bs/include/osdep_service.h
+++ b/drivers/staging/rtl8723bs/include/osdep_service.h
@@ -96,8 +96,8 @@ typedef enum mstat_status{
 
 #define rtw_mstat_update(flag, status, sz) do {} while (0)
 #define rtw_mstat_dump(sel) do {} while (0)
-u8*_rtw_zmalloc(u32 sz);
-u8*_rtw_malloc(u32 sz);
+void *_rtw_zmalloc(u32 sz);
+void *_rtw_malloc(u32 sz);
 void _kfree(u8 *pbuf, u32 sz);
 
 struct sk_buff *_rtw_skb_alloc(u32 sz);
@@ -118,8 +118,6 @@ int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb);
 
 extern void _rtw_init_queue(struct __queue	*pqueue);
 
-extern void rtw_init_timer(_timer *ptimer, void *padapter, void *pfunc);
-
 static __inline void thread_enter(char *name)
 {
 	allow_signal(SIGTERM);
diff --git a/drivers/staging/rtl8723bs/include/osdep_service_linux.h b/drivers/staging/rtl8723bs/include/osdep_service_linux.h
index 0c9b4f622fee..711863d74a01 100644
--- a/drivers/staging/rtl8723bs/include/osdep_service_linux.h
+++ b/drivers/staging/rtl8723bs/include/osdep_service_linux.h
@@ -86,17 +86,7 @@ __inline static struct list_head	*get_list_head(struct __queue	*queue)
 
 
 #define LIST_CONTAINOR(ptr, type, member) \
-        ((type *)((char *)(ptr)-(__kernel_size_t)(&((type *)0)->member)))
-
-#define RTW_TIMER_HDL_ARGS void *FunctionContext
-
-__inline static void _init_timer(_timer *ptimer, _nic_hdl nic_hdl, void *pfunc, void* cntx)
-{
-	/* setup_timer(ptimer, pfunc, (u32)cntx); */
-	ptimer->function = pfunc;
-	ptimer->data = (unsigned long)cntx;
-	init_timer(ptimer);
-}
+	container_of(ptr, type, member)
 
 __inline static void _set_timer(_timer *ptimer, u32 delay_time)
 {
@@ -109,7 +99,6 @@ __inline static void _cancel_timer(_timer *ptimer, u8 *bcancelled)
 	*bcancelled =  true;/* true == 1; false == 0 */
 }
 
-
 __inline static void _init_workitem(_workitem *pwork, void *pfunc, void *cntx)
 {
 	INIT_WORK(pwork, pfunc);
diff --git a/drivers/staging/rtl8723bs/include/rtw_mlme.h b/drivers/staging/rtl8723bs/include/rtw_mlme.h
index d88ef67ce8d6..00b3d92c9f51 100644
--- a/drivers/staging/rtl8723bs/include/rtw_mlme.h
+++ b/drivers/staging/rtl8723bs/include/rtw_mlme.h
@@ -518,8 +518,8 @@ extern void rtw_atimdone_event_callback(struct adapter *adapter, u8 *pbuf);
 extern void rtw_cpwm_event_callback(struct adapter *adapter, u8 *pbuf);
 extern void rtw_wmm_event_callback(struct adapter *padapter, u8 *pbuf);
 
-extern void rtw_join_timeout_handler(RTW_TIMER_HDL_ARGS);
-extern void _rtw_scan_timeout_handler(RTW_TIMER_HDL_ARGS);
+extern void rtw_join_timeout_handler(struct timer_list *t);
+extern void _rtw_scan_timeout_handler(struct timer_list *t);
 
 int event_thread(void *context);
 
@@ -618,10 +618,10 @@ extern void rtw_update_registrypriv_dev_network(struct adapter *adapter);
 
 extern void rtw_get_encrypt_decrypt_from_registrypriv(struct adapter *adapter);
 
-extern void _rtw_join_timeout_handler(struct adapter *adapter);
-extern void rtw_scan_timeout_handler(struct adapter *adapter);
+extern void _rtw_join_timeout_handler(struct timer_list *t);
+extern void rtw_scan_timeout_handler(struct timer_list *t);
 
-extern void rtw_dynamic_check_timer_handlder(struct adapter *adapter);
+extern void rtw_dynamic_check_timer_handler(struct adapter *adapter);
 bool rtw_is_scan_deny(struct adapter *adapter);
 void rtw_clear_scan_deny(struct adapter *adapter);
 void rtw_set_scan_deny_timer_hdl(struct adapter *adapter);
diff --git a/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h b/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
index f3952463697e..6613dea2b283 100644
--- a/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8723bs/include/rtw_mlme_ext.h
@@ -424,7 +424,7 @@ struct mlme_ext_info
 	u8 candidate_tid_bitmap;
 	u8 dialogToken;
 	/*  Accept ADDBA Request */
-	bool bAcceptAddbaReq;
+	bool accept_addba_req;
 	u8 bwmode_updated;
 	u8 hidden_ssid_mode;
 	u8 VHT_enable;
@@ -719,10 +719,10 @@ void linked_status_chk(struct adapter *padapter);
 
 void _linked_info_dump(struct adapter *padapter);
 
-void survey_timer_hdl (struct adapter *padapter);
-void link_timer_hdl (struct adapter *padapter);
-void addba_timer_hdl(struct sta_info *psta);
-void sa_query_timer_hdl(struct adapter *padapter);
+void survey_timer_hdl (struct timer_list *t);
+void link_timer_hdl (struct timer_list *t);
+void addba_timer_hdl(struct timer_list *t);
+void sa_query_timer_hdl(struct timer_list *t);
 /* void reauth_timer_hdl(struct adapter *padapter); */
 /* void reassoc_timer_hdl(struct adapter *padapter); */
 
diff --git a/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h b/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h
index cf8e766a27a8..faf91022f54a 100644
--- a/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h
+++ b/drivers/staging/rtl8723bs/include/rtw_pwrctrl.h
@@ -250,7 +250,7 @@ struct pwrctrl_priv
 	u8 ips_mode;
 	u8 ips_org_mode;
 	u8 ips_mode_req; /*  used to accept the mode setting request, will update to ipsmode later */
-	uint bips_processing;
+	bool bips_processing;
 	unsigned long ips_deny_time; /* will deny IPS when system time is smaller than this */
 	u8 pre_ips_type;/*  0: default flow, 1: carddisbale flow */
 
@@ -300,6 +300,7 @@ struct pwrctrl_priv
 	u64		wowlan_fw_iv;
 #endif /*  CONFIG_WOWLAN */
 	_timer	pwr_state_check_timer;
+	struct adapter *adapter;
 	int		pwr_state_check_interval;
 	u8 pwr_state_check_cnts;
 
diff --git a/drivers/staging/rtl8723bs/include/rtw_recv.h b/drivers/staging/rtl8723bs/include/rtw_recv.h
index 570a3c333aa0..71039ca79e4b 100644
--- a/drivers/staging/rtl8723bs/include/rtw_recv.h
+++ b/drivers/staging/rtl8723bs/include/rtw_recv.h
@@ -411,7 +411,7 @@ sint rtw_enqueue_recvbuf_to_head(struct recv_buf *precvbuf, struct __queue *queu
 sint rtw_enqueue_recvbuf(struct recv_buf *precvbuf, struct __queue *queue);
 struct recv_buf *rtw_dequeue_recvbuf (struct __queue *queue);
 
-void rtw_reordering_ctrl_timeout_handler(void *pcontext);
+void rtw_reordering_ctrl_timeout_handler(struct timer_list *t);
 
 __inline static u8 *get_rxmem(union recv_frame *precvframe)
 {
diff --git a/drivers/staging/rtl8723bs/include/rtw_wifi_regd.h b/drivers/staging/rtl8723bs/include/rtw_wifi_regd.h
index d97ca1630bd4..ab5a8627d371 100644
--- a/drivers/staging/rtl8723bs/include/rtw_wifi_regd.h
+++ b/drivers/staging/rtl8723bs/include/rtw_wifi_regd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  *
  * Copyright(c) 2009-2010  Realtek Corporation.
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
index bd4352fe2de3..51d48de24a24 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c
@@ -136,11 +136,9 @@ static struct ieee80211_supported_band *rtw_spt_band_alloc(
 		goto exit;
 	}
 
-	spt_band = (struct ieee80211_supported_band *)rtw_zmalloc(
-		sizeof(struct ieee80211_supported_band)
-		+ sizeof(struct ieee80211_channel)*n_channels
-		+ sizeof(struct ieee80211_rate)*n_bitrates
-	);
+	spt_band = rtw_zmalloc(sizeof(struct ieee80211_supported_band) +
+			       sizeof(struct ieee80211_channel) * n_channels +
+			       sizeof(struct ieee80211_rate) * n_bitrates);
 	if (!spt_band)
 		goto exit;
 
@@ -1094,7 +1092,7 @@ static int cfg80211_rtw_add_key(struct wiphy *wiphy, struct net_device *ndev,
 	DBG_871X("pairwise =%d\n", pairwise);
 
 	param_len = sizeof(struct ieee_param) + params->key_len;
-	param = (struct ieee_param *)rtw_malloc(param_len);
+	param = rtw_malloc(param_len);
 	if (param == NULL)
 		return -1;
 
@@ -2183,7 +2181,7 @@ static int cfg80211_rtw_connect(struct wiphy *wiphy, struct net_device *ndev,
 		{
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
-			pwep =(struct ndis_802_11_wep	 *) rtw_malloc(wep_total_len);
+			pwep = rtw_malloc(wep_total_len);
 			if (pwep == NULL) {
 				DBG_871X(" wpa_set_encryption: pwep allocate fail !!!\n");
 				ret = -ENOMEM;
@@ -2677,7 +2675,7 @@ static int rtw_cfg80211_add_monitor_if (struct adapter *padapter, char *name, st
 	pnpi->sizeof_priv = sizeof(struct adapter);
 
 	/*  wdev */
-	mon_wdev = (struct wireless_dev *)rtw_zmalloc(sizeof(struct wireless_dev));
+	mon_wdev = rtw_zmalloc(sizeof(struct wireless_dev));
 	if (!mon_wdev) {
 		DBG_871X(FUNC_ADPT_FMT" allocate mon_wdev fail\n", FUNC_ADPT_ARG(padapter));
 		ret = -ENOMEM;
@@ -3497,7 +3495,7 @@ int rtw_wdev_alloc(struct adapter *padapter, struct device *dev)
 	}
 
 	/*  wdev */
-	wdev = (struct wireless_dev *)rtw_zmalloc(sizeof(struct wireless_dev));
+	wdev = rtw_zmalloc(sizeof(struct wireless_dev));
 	if (!wdev) {
 		DBG_8192C("Couldn't allocate wireless device\n");
 		ret = -ENOMEM;
diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
index d5e5f830f2a1..3fca0c2d4c8d 100644
--- a/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/ioctl_linux.c
@@ -18,6 +18,7 @@
 #include <rtw_debug.h>
 #include <rtw_mp.h>
 #include <linux/jiffies.h>
+#include <linux/kernel.h>
 
 #define RTL_IOCTL_WPA_SUPPLICANT	(SIOCIWFIRSTPRIV+30)
 
@@ -557,7 +558,7 @@ static int wpa_set_encryption(struct net_device *dev, struct ieee_param *param,
 		if (wep_key_len > 0) {
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
-			pwep =(struct ndis_802_11_wep	 *) rtw_malloc(wep_total_len);
+			pwep = rtw_malloc(wep_total_len);
 			if (pwep == NULL) {
 				RT_TRACE(_module_rtl871x_ioctl_os_c, _drv_err_, (" wpa_set_encryption: pwep allocate fail !!!\n"));
 				goto exit;
@@ -2123,12 +2124,9 @@ static int rtw_wx_set_gen_ie(struct net_device *dev,
 			     struct iw_request_info *info,
 			     union iwreq_data *wrqu, char *extra)
 {
-	int ret;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 
-	ret = rtw_set_wpa_ie(padapter, extra, wrqu->data.length);
-
-	return ret;
+	return rtw_set_wpa_ie(padapter, extra, wrqu->data.length);
 }
 
 static int rtw_wx_set_auth(struct net_device *dev,
@@ -2238,7 +2236,7 @@ static int rtw_wx_set_enc_ext(struct net_device *dev,
 	int ret = 0;
 
 	param_len = sizeof(struct ieee_param) + pext->key_len;
-	param = (struct ieee_param *)rtw_malloc(param_len);
+	param = rtw_malloc(param_len);
 	if (param == NULL)
 		return -1;
 
@@ -2347,7 +2345,7 @@ static int rtw_wx_read32(struct net_device *dev,
 	if (0 == len)
 		return -EINVAL;
 
-	ptmp = (u8 *)rtw_malloc(len);
+	ptmp = rtw_malloc(len);
 	if (NULL == ptmp)
 		return -ENOMEM;
 
@@ -3500,7 +3498,7 @@ static int wpa_supplicant_ioctl(struct net_device *dev, struct iw_point *p)
 		goto out;
 	}
 
-	param = (struct ieee_param *)rtw_malloc(p->length);
+	param = rtw_malloc(p->length);
 	if (param == NULL) {
 		ret = -ENOMEM;
 		goto out;
@@ -3621,7 +3619,7 @@ static int rtw_set_encryption(struct net_device *dev, struct ieee_param *param,
 		if (wep_key_len > 0) {
 			wep_key_len = wep_key_len <= 5 ? 5 : 13;
 			wep_total_len = wep_key_len + FIELD_OFFSET(struct ndis_802_11_wep, KeyMaterial);
-			pwep =(struct ndis_802_11_wep *)rtw_malloc(wep_total_len);
+			pwep = rtw_malloc(wep_total_len);
 			if (pwep == NULL) {
 				DBG_871X(" r871x_set_encryption: pwep allocate fail !!!\n");
 				goto exit;
@@ -3857,7 +3855,6 @@ static int rtw_hostapd_sta_flush(struct net_device *dev)
 {
 	/* _irqL irqL; */
 	/* struct list_head	*phead, *plist; */
-	int ret = 0;
 	/* struct sta_info *psta = NULL; */
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	/* struct sta_priv *pstapriv = &padapter->stapriv; */
@@ -3866,9 +3863,7 @@ static int rtw_hostapd_sta_flush(struct net_device *dev)
 
 	flush_all_cam_entry(padapter);	/* clear CAM */
 
-	ret = rtw_sta_flush(padapter);
-
-	return ret;
+	return rtw_sta_flush(padapter);
 
 }
 
@@ -4266,7 +4261,6 @@ static int rtw_set_hidden_ssid(struct net_device *dev, struct ieee_param *param,
 
 static int rtw_ioctl_acl_remove_sta(struct net_device *dev, struct ieee_param *param, int len)
 {
-	int ret = 0;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 
@@ -4279,15 +4273,12 @@ static int rtw_ioctl_acl_remove_sta(struct net_device *dev, struct ieee_param *p
 		return -EINVAL;
 	}
 
-	ret = rtw_acl_remove_sta(padapter, param->sta_addr);
-
-	return ret;
+	return rtw_acl_remove_sta(padapter, param->sta_addr);
 
 }
 
 static int rtw_ioctl_acl_add_sta(struct net_device *dev, struct ieee_param *param, int len)
 {
-	int ret = 0;
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 
@@ -4300,9 +4291,7 @@ static int rtw_ioctl_acl_add_sta(struct net_device *dev, struct ieee_param *para
 		return -EINVAL;
 	}
 
-	ret = rtw_acl_add_sta(padapter, param->sta_addr);
-
-	return ret;
+	return rtw_acl_add_sta(padapter, param->sta_addr);
 
 }
 
@@ -4345,7 +4334,7 @@ static int rtw_hostapd_ioctl(struct net_device *dev, struct iw_point *p)
 		goto out;
 	}
 
-	param = (struct ieee_param *)rtw_malloc(p->length);
+	param = rtw_malloc(p->length);
 	if (param == NULL) {
 		ret = -ENOMEM;
 		goto out;
@@ -4673,7 +4662,7 @@ static int rtw_test(
 	DBG_871X("+%s\n", __func__);
 	len = wrqu->data.length;
 
-	pbuf = (u8 *)rtw_zmalloc(len);
+	pbuf = rtw_zmalloc(len);
 	if (pbuf == NULL) {
 		DBG_871X("%s: no memory!\n", __func__);
 		return -ENOMEM;
@@ -5029,12 +5018,12 @@ static struct iw_statistics *rtw_get_wireless_stats(struct net_device *dev)
 
 struct iw_handler_def rtw_handlers_def = {
 	.standard = rtw_handlers,
-	.num_standard = sizeof(rtw_handlers) / sizeof(iw_handler),
+	.num_standard = ARRAY_SIZE(rtw_handlers),
 #if defined(CONFIG_WEXT_PRIV)
 	.private = rtw_private_handler,
 	.private_args = (struct iw_priv_args *)rtw_private_args,
-	.num_private = sizeof(rtw_private_handler) / sizeof(iw_handler),
-	.num_private_args = sizeof(rtw_private_args) / sizeof(struct iw_priv_args),
+	.num_private = ARRAY_SIZE(rtw_private_handler),
+	.num_private_args = ARRAY_SIZE(rtw_private_args),
 #endif
 	.get_wireless_stats = rtw_get_wireless_stats,
 };
@@ -5121,8 +5110,8 @@ static int rtw_ioctl_wext_private(struct net_device *dev, union iwreq_data *wrq_
 
 	priv = rtw_private_handler;
 	priv_args = rtw_private_args;
-	num_priv = sizeof(rtw_private_handler) / sizeof(iw_handler);
-	num_priv_args = sizeof(rtw_private_args) / sizeof(struct iw_priv_args);
+	num_priv = ARRAY_SIZE(rtw_private_handler);
+	num_priv_args = ARRAY_SIZE(rtw_private_args);
 
 	if (num_priv_args == 0) {
 		err = -EOPNOTSUPP;
diff --git a/drivers/staging/rtl8723bs/os_dep/mlme_linux.c b/drivers/staging/rtl8723bs/os_dep/mlme_linux.c
index 80ca2d781c5d..a4ef5789d794 100644
--- a/drivers/staging/rtl8723bs/os_dep/mlme_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/mlme_linux.c
@@ -19,18 +19,21 @@
 #include <drv_types.h>
 #include <rtw_debug.h>
 
-static void _dynamic_check_timer_handlder (void *FunctionContext)
+static void _dynamic_check_timer_handler(struct timer_list *t)
 {
-	struct adapter *adapter = FunctionContext;
+	struct adapter *adapter =
+		from_timer(adapter, t, mlmepriv.dynamic_chk_timer);
 
-	rtw_dynamic_check_timer_handlder(adapter);
+	rtw_dynamic_check_timer_handler(adapter);
 
 	_set_timer(&adapter->mlmepriv.dynamic_chk_timer, 2000);
 }
 
-static void _rtw_set_scan_deny_timer_hdl(void *FunctionContext)
+static void _rtw_set_scan_deny_timer_hdl(struct timer_list *t)
 {
-	struct adapter *adapter = FunctionContext;
+	struct adapter *adapter =
+		from_timer(adapter, t, mlmepriv.set_scan_deny_timer);
+
 	rtw_set_scan_deny_timer_hdl(adapter);
 }
 
@@ -38,21 +41,20 @@ void rtw_init_mlme_timer(struct adapter *padapter)
 {
 	struct	mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	_init_timer(&(pmlmepriv->assoc_timer), padapter->pnetdev, _rtw_join_timeout_handler, padapter);
-	/* _init_timer(&(pmlmepriv->sitesurveyctrl.sitesurvey_ctrl_timer), padapter->pnetdev, sitesurvey_ctrl_handler, padapter); */
-	_init_timer(&(pmlmepriv->scan_to_timer), padapter->pnetdev, rtw_scan_timeout_handler, padapter);
-
-	_init_timer(&(pmlmepriv->dynamic_chk_timer), padapter->pnetdev, _dynamic_check_timer_handlder, padapter);
-
-	_init_timer(&(pmlmepriv->set_scan_deny_timer), padapter->pnetdev, _rtw_set_scan_deny_timer_hdl, padapter);
+	timer_setup(&pmlmepriv->assoc_timer, _rtw_join_timeout_handler, 0);
+	timer_setup(&pmlmepriv->scan_to_timer, rtw_scan_timeout_handler, 0);
+	timer_setup(&pmlmepriv->dynamic_chk_timer,
+		    _dynamic_check_timer_handler, 0);
+	timer_setup(&pmlmepriv->set_scan_deny_timer,
+		    _rtw_set_scan_deny_timer_hdl, 0);
 }
 
 void rtw_os_indicate_connect(struct adapter *adapter)
 {
 	struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
 
-	if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ==true) ||
-		(check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) ==true))
+	if ((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) == true) ||
+		(check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true))
 	{
 		rtw_cfg80211_ibss_indicate_connect(adapter);
 	}
@@ -99,7 +101,7 @@ void rtw_reset_securitypriv(struct adapter *adapter)
 		/* reset RX BIP packet number */
 		pmlmeext->mgnt_80211w_IPN_rx = 0;
 
-		memset((unsigned char *)&adapter->securitypriv, 0, sizeof (struct security_priv));
+		memset((unsigned char *)&adapter->securitypriv, 0, sizeof(struct security_priv));
 
 		/*  Added by Albert 2009/02/18 */
 		/*  Restore the PMK information to securitypriv structure for the following connection. */
@@ -116,9 +118,9 @@ void rtw_reset_securitypriv(struct adapter *adapter)
 	{
 		/* if (adapter->mlmepriv.fw_state & WIFI_STATION_STATE) */
 		/*  */
-		struct security_priv *psec_priv =&adapter->securitypriv;
+		struct security_priv *psec_priv = &adapter->securitypriv;
 
-		psec_priv->dot11AuthAlgrthm =dot11AuthAlgrthm_Open;  /* open system */
+		psec_priv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open;  /* open system */
 		psec_priv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
 		psec_priv->dot11PrivacyKeyIndex = 0;
 
@@ -150,7 +152,7 @@ void rtw_os_indicate_disconnect(struct adapter *adapter)
 void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 {
 	uint	len;
-	u8 *buff,*p, i;
+	u8 *buff, *p, i;
 	union iwreq_data wrqu;
 
 	RT_TRACE(_module_mlme_osdep_c_, _drv_info_, ("+rtw_report_sec_ie, authmode =%d\n", authmode));
@@ -168,22 +170,22 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 		}
 		p = buff;
 
-		p+=sprintf(p,"ASSOCINFO(ReqIEs =");
+		p += sprintf(p, "ASSOCINFO(ReqIEs =");
 
-		len = sec_ie[1]+2;
-		len = (len < IW_CUSTOM_MAX) ? len:IW_CUSTOM_MAX;
+		len = sec_ie[1] + 2;
+		len = (len < IW_CUSTOM_MAX) ? len : IW_CUSTOM_MAX;
 
-		for (i = 0;i<len;i++) {
-			p+=sprintf(p,"%02x", sec_ie[i]);
+		for (i = 0; i < len; i++) {
+			p += sprintf(p, "%02x", sec_ie[i]);
 		}
 
-		p+=sprintf(p,")");
+		p += sprintf(p, ")");
 
 		memset(&wrqu, 0, sizeof(wrqu));
 
-		wrqu.data.length =p-buff;
+		wrqu.data.length = p - buff;
 
-		wrqu.data.length = (wrqu.data.length<IW_CUSTOM_MAX) ? wrqu.data.length:IW_CUSTOM_MAX;
+		wrqu.data.length = (wrqu.data.length < IW_CUSTOM_MAX) ? wrqu.data.length : IW_CUSTOM_MAX;
 
 		kfree(buff);
 	}
@@ -191,14 +193,14 @@ void rtw_report_sec_ie(struct adapter *adapter, u8 authmode, u8 *sec_ie)
 
 void init_addba_retry_timer(struct adapter *padapter, struct sta_info *psta)
 {
-	_init_timer(&psta->addba_retry_timer, padapter->pnetdev, addba_timer_hdl, psta);
+	timer_setup(&psta->addba_retry_timer, addba_timer_hdl, 0);
 }
 
 void init_mlme_ext_timer(struct adapter *padapter)
 {
 	struct	mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 
-	_init_timer(&pmlmeext->survey_timer, padapter->pnetdev, survey_timer_hdl, padapter);
-	_init_timer(&pmlmeext->link_timer, padapter->pnetdev, link_timer_hdl, padapter);
-	_init_timer(&pmlmeext->sa_query_timer, padapter->pnetdev, sa_query_timer_hdl, padapter);
+	timer_setup(&pmlmeext->survey_timer, survey_timer_hdl, 0);
+	timer_setup(&pmlmeext->link_timer, link_timer_hdl, 0);
+	timer_setup(&pmlmeext->sa_query_timer, sa_query_timer_hdl, 0);
 }
diff --git a/drivers/staging/rtl8723bs/os_dep/os_intfs.c b/drivers/staging/rtl8723bs/os_dep/os_intfs.c
index 021589913681..fc5e3d4739c0 100644
--- a/drivers/staging/rtl8723bs/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8723bs/os_dep/os_intfs.c
@@ -24,9 +24,9 @@ MODULE_AUTHOR("Realtek Semiconductor Corp.");
 MODULE_VERSION(DRIVERVERSION);
 
 /* module param defaults */
-static int rtw_chip_version = 0x00;
+static int rtw_chip_version;
 static int rtw_rfintfs = HWPI;
-static int rtw_lbkmode = 0;/* RTL8712_AIR_TRX; */
+static int rtw_lbkmode;/* RTL8712_AIR_TRX; */
 
 
 static int rtw_network_mode = Ndis802_11IBSS;/* Ndis802_11Infrastructure;infra, ad-hoc, auto */
@@ -40,12 +40,12 @@ static int rtw_frag_thresh = 2346;/*  */
 static int rtw_preamble = PREAMBLE_LONG;/* long, short, auto */
 static int rtw_scan_mode = 1;/* active, passive */
 static int rtw_adhoc_tx_pwr = 1;
-static int rtw_soft_ap = 0;
+static int rtw_soft_ap;
 /* int smart_ps = 1; */
 static int rtw_power_mgnt = 1;
 static int rtw_ips_mode = IPS_NORMAL;
 module_param(rtw_ips_mode, int, 0644);
-MODULE_PARM_DESC(rtw_ips_mode,"The default IPS mode");
+MODULE_PARM_DESC(rtw_ips_mode, "The default IPS mode");
 
 static int rtw_smart_ps = 2;
 
@@ -61,18 +61,18 @@ static int rtw_busy_thresh = 40;
 /* int qos_enable = 0; */
 static int rtw_ack_policy = NORMAL_ACK;
 
-static int rtw_software_encrypt = 0;
-static int rtw_software_decrypt = 0;
+static int rtw_software_encrypt;
+static int rtw_software_decrypt;
 
-static int rtw_acm_method = 0;/*  0:By SW 1:By HW. */
+static int rtw_acm_method;/*  0:By SW 1:By HW. */
 
 static int rtw_wmm_enable = 1;/*  default is set to enable the wmm. */
-static int rtw_uapsd_enable = 0;
+static int rtw_uapsd_enable;
 static int rtw_uapsd_max_sp = NO_LIMIT;
-static int rtw_uapsd_acbk_en = 0;
-static int rtw_uapsd_acbe_en = 0;
-static int rtw_uapsd_acvi_en = 0;
-static int rtw_uapsd_acvo_en = 0;
+static int rtw_uapsd_acbk_en;
+static int rtw_uapsd_acbe_en;
+static int rtw_uapsd_acvi_en;
+static int rtw_uapsd_acvo_en;
 
 int rtw_ht_enable = 1;
 /*  0: 20 MHz, 1: 40 MHz, 2: 80 MHz, 3: 160MHz, 4: 80+80MHz */
@@ -81,7 +81,7 @@ int rtw_ht_enable = 1;
 static int rtw_bw_mode = 0x21;
 static int rtw_ampdu_enable = 1;/* for enable tx_ampdu ,0: disable, 0x1:enable (but wifi_spec should be 0), 0x2: force enable (don't care wifi_spec) */
 static int rtw_rx_stbc = 1;/*  0: disable, 1:enable 2.4g */
-static int rtw_ampdu_amsdu = 0;/*  0: disabled, 1:enabled, 2:auto . There is an IOT issu with DLINK DIR-629 when the flag turn on */
+static int rtw_ampdu_amsdu;/*  0: disabled, 1:enabled, 2:auto . There is an IOT issu with DLINK DIR-629 when the flag turn on */
 /*  Short GI support Bit Map */
 /*  BIT0 - 20MHz, 0: non-support, 1: support */
 /*  BIT1 - 40MHz, 0: non-support, 1: support */
@@ -99,8 +99,8 @@ static int rtw_lowrate_two_xmit = 1;/* Use 2 path Tx to transmit MCS0~7 and lega
 
 /* int rf_config = RF_1T2R;  1T2R */
 static int rtw_rf_config = RF_MAX_TYPE;  /* auto */
-static int rtw_low_power = 0;
-static int rtw_wifi_spec = 0;
+static int rtw_low_power;
+static int rtw_wifi_spec;
 static int rtw_channel_plan = RT_CHANNEL_DOMAIN_MAX;
 
 static int rtw_btcoex_enable = 1;
@@ -113,40 +113,38 @@ static int rtw_ant_num = -1; /*  <0: undefined, >0: Antenna number */
 module_param(rtw_ant_num, int, 0644);
 MODULE_PARM_DESC(rtw_ant_num, "Antenna number setting");
 
-static int rtw_AcceptAddbaReq = true;/*  0:Reject AP's Add BA req, 1:Accept AP's Add BA req. */
-
 static int rtw_antdiv_cfg = 1; /*  0:OFF , 1:ON, 2:decide by Efuse config */
-static int rtw_antdiv_type = 0 ; /* 0:decide by efuse  1: for 88EE, 1Tx and 1RxCG are diversity.(2 Ant with SPDT), 2:  for 88EE, 1Tx and 2Rx are diversity.(2 Ant, Tx and RxCG are both on aux port, RxCS is on main port), 3: for 88EE, 1Tx and 1RxCG are fixed.(1Ant, Tx and RxCG are both on aux port) */
+static int rtw_antdiv_type; /* 0:decide by efuse  1: for 88EE, 1Tx and 1RxCG are diversity.(2 Ant with SPDT), 2:  for 88EE, 1Tx and 2Rx are diversity.(2 Ant, Tx and RxCG are both on aux port, RxCS is on main port), 3: for 88EE, 1Tx and 1RxCG are fixed.(1Ant, Tx and RxCG are both on aux port) */
 
 
-static int rtw_enusbss = 0;/* 0:disable, 1:enable */
+static int rtw_enusbss;/* 0:disable, 1:enable */
 
-static int rtw_hwpdn_mode =2;/* 0:disable, 1:enable, 2: by EFUSE config */
+static int rtw_hwpdn_mode = 2;/* 0:disable, 1:enable, 2: by EFUSE config */
 
 #ifdef CONFIG_HW_PWRP_DETECTION
 static int rtw_hwpwrp_detect = 1;
 #else
-static int rtw_hwpwrp_detect = 0; /* HW power  ping detect 0:disable , 1:enable */
+static int rtw_hwpwrp_detect; /* HW power  ping detect 0:disable , 1:enable */
 #endif
 
-static int rtw_hw_wps_pbc = 0;
+static int rtw_hw_wps_pbc;
 
 int rtw_mc2u_disable = 0;
 
-static int rtw_80211d = 0;
+static int rtw_80211d;
 
 #ifdef CONFIG_QOS_OPTIMIZATION
 static int rtw_qos_opt_enable = 1;/* 0: disable, 1:enable */
 #else
-static int rtw_qos_opt_enable = 0;/* 0: disable, 1:enable */
+static int rtw_qos_opt_enable;/* 0: disable, 1:enable */
 #endif
 module_param(rtw_qos_opt_enable, int, 0644);
 
-static char* ifname = "wlan%d";
+static char *ifname = "wlan%d";
 module_param(ifname, charp, 0644);
 MODULE_PARM_DESC(ifname, "The default name to allocate for first interface");
 
-char* rtw_initmac = NULL;  /*  temp mac address if users want to use instead of the mac address in Efuse */
+char *rtw_initmac = NULL;  /*  temp mac address if users want to use instead of the mac address in Efuse */
 
 module_param(rtw_initmac, charp, 0644);
 module_param(rtw_channel_plan, int, 0644);
@@ -183,16 +181,16 @@ module_param(rtw_hwpwrp_detect, int, 0644);
 
 module_param(rtw_hw_wps_pbc, int, 0644);
 
-static uint rtw_max_roaming_times =2;
+static uint rtw_max_roaming_times = 2;
 module_param(rtw_max_roaming_times, uint, 0644);
-MODULE_PARM_DESC(rtw_max_roaming_times,"The max roaming times to try");
+MODULE_PARM_DESC(rtw_max_roaming_times, "The max roaming times to try");
 
 module_param(rtw_mc2u_disable, int, 0644);
 
 module_param(rtw_80211d, int, 0644);
 MODULE_PARM_DESC(rtw_80211d, "Enable 802.11d mechanism");
 
-static uint rtw_notch_filter = 0;
+static uint rtw_notch_filter;
 module_param(rtw_notch_filter, uint, 0644);
 MODULE_PARM_DESC(rtw_notch_filter, "0:Disable, 1:Enable, 2:Enable only for P2P");
 
@@ -202,14 +200,14 @@ static uint rtw_hiq_filter = CONFIG_RTW_HIQ_FILTER;
 module_param(rtw_hiq_filter, uint, 0644);
 MODULE_PARM_DESC(rtw_hiq_filter, "0:allow all, 1:allow special, 2:deny all");
 
-static int rtw_tx_pwr_lmt_enable = 0;
-static int rtw_tx_pwr_by_rate = 0;
+static int rtw_tx_pwr_lmt_enable;
+static int rtw_tx_pwr_by_rate;
 
 module_param(rtw_tx_pwr_lmt_enable, int, 0644);
-MODULE_PARM_DESC(rtw_tx_pwr_lmt_enable,"0:Disable, 1:Enable, 2: Depend on efuse");
+MODULE_PARM_DESC(rtw_tx_pwr_lmt_enable, "0:Disable, 1:Enable, 2: Depend on efuse");
 
 module_param(rtw_tx_pwr_by_rate, int, 0644);
-MODULE_PARM_DESC(rtw_tx_pwr_by_rate,"0:Disable, 1:Enable, 2: Depend on efuse");
+MODULE_PARM_DESC(rtw_tx_pwr_by_rate, "0:Disable, 1:Enable, 2: Depend on efuse");
 
 char *rtw_phy_file_path = "";
 module_param(rtw_phy_file_path, charp, 0644);
@@ -222,12 +220,12 @@ MODULE_PARM_DESC(rtw_phy_file_path, "The path of phy parameter");
 /*  BIT4 - RF,					0: non-support, 1: support */
 /*  BIT5 - RF_TXPWR_TRACK,	0: non-support, 1: support */
 /*  BIT6 - RF_TXPWR_LMT,		0: non-support, 1: support */
-static int rtw_load_phy_file = (BIT2|BIT6);
+static int rtw_load_phy_file = (BIT2 | BIT6);
 module_param(rtw_load_phy_file, int, 0644);
-MODULE_PARM_DESC(rtw_load_phy_file,"PHY File Bit Map");
-static int rtw_decrypt_phy_file = 0;
+MODULE_PARM_DESC(rtw_load_phy_file, "PHY File Bit Map");
+static int rtw_decrypt_phy_file;
 module_param(rtw_decrypt_phy_file, int, 0644);
-MODULE_PARM_DESC(rtw_decrypt_phy_file,"Enable Decrypt PHY File");
+MODULE_PARM_DESC(rtw_decrypt_phy_file, "Enable Decrypt PHY File");
 
 int _netdev_open(struct net_device *pnetdev);
 int netdev_open (struct net_device *pnetdev);
@@ -255,8 +253,8 @@ static uint loadparam(struct adapter *padapter, _nic_hdl pnetdev)
 
 	registry_par->vrtl_carrier_sense = (u8)rtw_vrtl_carrier_sense ;
 	registry_par->vcs_type = (u8)rtw_vcs_type;
-	registry_par->rts_thresh =(u16)rtw_rts_thresh;
-	registry_par->frag_thresh =(u16)rtw_frag_thresh;
+	registry_par->rts_thresh = (u16)rtw_rts_thresh;
+	registry_par->frag_thresh = (u16)rtw_frag_thresh;
 	registry_par->preamble = (u8)rtw_preamble;
 	registry_par->scan_mode = (u8)rtw_scan_mode;
 	registry_par->adhoc_tx_pwr = (u8)rtw_adhoc_tx_pwr;
@@ -311,7 +309,7 @@ static uint loadparam(struct adapter *padapter, _nic_hdl pnetdev)
 	registry_par->bt_ampdu = (u8)rtw_bt_ampdu;
 	registry_par->ant_num = (s8)rtw_ant_num;
 
-	registry_par->bAcceptAddbaReq = (u8)rtw_AcceptAddbaReq;
+	registry_par->accept_addba_req = true;
 
 	registry_par->antdiv_cfg = (u8)rtw_antdiv_cfg;
 	registry_par->antdiv_type = (u8)rtw_antdiv_type;
@@ -351,8 +349,7 @@ static int rtw_net_set_mac_address(struct net_device *pnetdev, void *p)
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);
 	struct sockaddr *addr = p;
 
-	if (padapter->bup == false)
-	{
+	if (padapter->bup == false) {
 		/* DBG_871X("r8711_net_set_mac_address(), MAC =%x:%x:%x:%x:%x:%x\n", addr->sa_data[0], addr->sa_data[1], addr->sa_data[2], addr->sa_data[3], */
 		/* addr->sa_data[4], addr->sa_data[5]); */
 		memcpy(padapter->eeprompriv.mac_addr, addr->sa_data, ETH_ALEN);
@@ -425,9 +422,7 @@ static u16 rtw_select_queue(struct net_device *dev, struct sk_buff *skb
 	skb->priority = rtw_classify8021d(skb);
 
 	if (pmlmepriv->acm_mask != 0)
-	{
 		skb->priority = qos_acm(pmlmepriv->acm_mask, skb->priority);
-	}
 
 	return rtw_1d_to_queue[skb->priority];
 }
@@ -440,12 +435,12 @@ u16 rtw_recv_select_queue(struct sk_buff *skb)
 	u32 priority;
 	u8 *pdata = skb->data;
 
-	memcpy(&eth_type, pdata+(ETH_ALEN<<1), 2);
+	memcpy(&eth_type, pdata + (ETH_ALEN << 1), 2);
 
 	switch (be16_to_cpu(eth_type)) {
 		case ETH_P_IP:
 
-			piphdr = (struct iphdr *)(pdata+ETH_HLEN);
+			piphdr = (struct iphdr *)(pdata + ETH_HLEN);
 
 			dscp = piphdr->tos & 0xfc;
 
@@ -457,17 +452,16 @@ u16 rtw_recv_select_queue(struct sk_buff *skb)
 	}
 
 	return rtw_1d_to_queue[priority];
-
 }
 
-static int rtw_ndev_notifier_call(struct notifier_block * nb, unsigned long state, void *ptr)
+static int rtw_ndev_notifier_call(struct notifier_block *nb, unsigned long state, void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 
 	if (dev->netdev_ops->ndo_do_ioctl != rtw_ioctl)
 		return NOTIFY_DONE;
 
-	DBG_871X_LEVEL(_drv_info_, FUNC_NDEV_FMT" state:%lu\n", FUNC_NDEV_ARG(dev), state);
+	DBG_871X_LEVEL(_drv_info_, FUNC_NDEV_FMT " state:%lu\n", FUNC_NDEV_ARG(dev), state);
 
 	switch (state) {
 	case NETDEV_CHANGENAME:
@@ -497,7 +491,7 @@ static int rtw_ndev_init(struct net_device *dev)
 {
 	struct adapter *adapter = rtw_netdev_priv(dev);
 
-	DBG_871X_LEVEL(_drv_always_, FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
+	DBG_871X_LEVEL(_drv_always_, FUNC_ADPT_FMT "\n", FUNC_ADPT_ARG(adapter));
 	strncpy(adapter->old_ifname, dev->name, IFNAMSIZ);
 	rtw_adapter_proc_init(dev);
 
@@ -508,7 +502,7 @@ static void rtw_ndev_uninit(struct net_device *dev)
 {
 	struct adapter *adapter = rtw_netdev_priv(dev);
 
-	DBG_871X_LEVEL(_drv_always_, FUNC_ADPT_FMT"\n", FUNC_ADPT_ARG(adapter));
+	DBG_871X_LEVEL(_drv_always_, FUNC_ADPT_FMT "\n", FUNC_ADPT_ARG(adapter));
 	rtw_adapter_proc_deinit(dev);
 }
 
@@ -561,7 +555,7 @@ struct net_device *rtw_init_netdev(struct adapter *old_padapter)
 	pnetdev->netdev_ops = &rtw_netdev_ops;
 
 	/* pnetdev->tx_timeout = NULL; */
-	pnetdev->watchdog_timeo = HZ*3; /* 3 second timeout */
+	pnetdev->watchdog_timeo = HZ * 3; /* 3 second timeout */
 	pnetdev->wireless_handlers = (struct iw_handler_def *)&rtw_handlers_def;
 
 	/* step 2. */
@@ -597,7 +591,7 @@ u32 rtw_start_drv_threads(struct adapter *padapter)
 		_status = _FAIL;
 
 	padapter->cmdThread = kthread_run(rtw_cmd_thread, padapter, "RTW_CMD_THREAD");
-        if (IS_ERR(padapter->cmdThread))
+	if (IS_ERR(padapter->cmdThread))
 		_status = _FAIL;
 	else
 		down(&padapter->cmdpriv.terminate_cmdthread_sema); /* wait for cmd_thread to run */
@@ -623,7 +617,7 @@ void rtw_stop_drv_threads (struct adapter *padapter)
 static u8 rtw_init_default_value(struct adapter *padapter)
 {
 	u8 ret  = _SUCCESS;
-	struct registry_priv* pregistrypriv = &padapter->registrypriv;
+	struct registry_priv *pregistrypriv = &padapter->registrypriv;
 	struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	struct security_priv *psecuritypriv = &padapter->securitypriv;
@@ -652,8 +646,8 @@ static u8 rtw_init_default_value(struct adapter *padapter)
 #ifdef CONFIG_GTK_OL
 	psecuritypriv->binstallKCK_KEK = _FAIL;
 #endif /* CONFIG_GTK_OL */
-	psecuritypriv->sw_encrypt =pregistrypriv->software_encrypt;
-	psecuritypriv->sw_decrypt =pregistrypriv->software_decrypt;
+	psecuritypriv->sw_encrypt = pregistrypriv->software_encrypt;
+	psecuritypriv->sw_decrypt = pregistrypriv->software_decrypt;
 
 	psecuritypriv->dot11AuthAlgrthm = dot11AuthAlgrthm_Open; /* open system */
 	psecuritypriv->dot11PrivacyAlgrthm = _NO_PRIVACY_;
@@ -691,7 +685,8 @@ struct dvobj_priv *devobj_init(void)
 {
 	struct dvobj_priv *pdvobj = NULL;
 
-	if ((pdvobj = (struct dvobj_priv*)rtw_zmalloc(sizeof(*pdvobj))) == NULL)
+	pdvobj = rtw_zmalloc(sizeof(*pdvobj));
+	if (pdvobj == NULL)
 		return NULL;
 
 	mutex_init(&pdvobj->hw_init_mutex);
@@ -722,7 +717,7 @@ void devobj_deinit(struct dvobj_priv *pdvobj)
 	mutex_destroy(&pdvobj->setch_mutex);
 	mutex_destroy(&pdvobj->setbw_mutex);
 
-	kfree((u8 *)pdvobj);
+	kfree(pdvobj);
 }
 
 u8 rtw_reset_drv_sw(struct adapter *padapter)
@@ -748,7 +743,7 @@ u8 rtw_reset_drv_sw(struct adapter *padapter)
 	pmlmepriv->LinkDetectInfo.TrafficTransitionCount = 0;
 	pmlmepriv->LinkDetectInfo.LowPowerTransitionCount = 0;
 
-	_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY |_FW_UNDER_LINKING);
+	_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING);
 
 	pwrctrlpriv->pwr_state_check_cnts = 0;
 
@@ -777,7 +772,7 @@ u8 rtw_init_drv_sw(struct adapter *padapter)
 		goto exit;
 	}
 
-	padapter->cmdpriv.padapter =padapter;
+	padapter->cmdpriv.padapter = padapter;
 
 	if ((rtw_init_evt_priv(&padapter->evtpriv)) == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_, ("\n Can't init evt_priv\n"));
@@ -935,7 +930,7 @@ static int _rtw_drv_register_netdev(struct adapter *padapter, char *name)
 		goto error_register_netdev;
 	}
 
-	DBG_871X("%s, MAC Address (if%d) = " MAC_FMT "\n", __func__, (padapter->iface_id+1), MAC_ARG(pnetdev->dev_addr));
+	DBG_871X("%s, MAC Address (if%d) = " MAC_FMT "\n", __func__, (padapter->iface_id + 1), MAC_ARG(pnetdev->dev_addr));
 
 	return ret;
 
@@ -984,9 +979,9 @@ int _netdev_open(struct net_device *pnetdev)
 			goto netdev_open_error;
 		}
 
-		DBG_871X("MAC Address = "MAC_FMT"\n", MAC_ARG(pnetdev->dev_addr));
+		DBG_871X("MAC Address = " MAC_FMT "\n", MAC_ARG(pnetdev->dev_addr));
 
-		status =rtw_start_drv_threads(padapter);
+		status = rtw_start_drv_threads(padapter);
 		if (status == _FAIL) {
 			DBG_871X("Initialize driver software resource Failed!\n");
 			goto netdev_open_error;
@@ -1027,7 +1022,6 @@ netdev_open_error:
 	DBG_871X("-871x_drv - drv_open fail, bup =%d\n", padapter->bup);
 
 	return (-1);
-
 }
 
 int netdev_open(struct net_device *pnetdev)
@@ -1036,8 +1030,7 @@ int netdev_open(struct net_device *pnetdev)
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);
 	struct pwrctrl_priv *pwrctrlpriv = adapter_to_pwrctl(padapter);
 
-	if (pwrctrlpriv->bInSuspend == true)
-	{
+	if (pwrctrlpriv->bInSuspend == true) {
 		DBG_871X("+871x_drv - drv_open, bInSuspend =%d\n", pwrctrlpriv->bInSuspend);
 		return 0;
 	}
@@ -1066,16 +1059,13 @@ static int  ips_netdrv_open(struct adapter *padapter)
 	/* padapter->bup = true; */
 
 	status = rtw_hal_init(padapter);
-	if (status == _FAIL)
-	{
+	if (status == _FAIL) {
 		RT_TRACE(_module_os_intfs_c_, _drv_err_, ("ips_netdrv_open(): Can't init h/w!\n"));
 		goto netdev_open_error;
 	}
 
 	if (padapter->intf_start)
-	{
 		padapter->intf_start(padapter);
-	}
 
 	_set_timer(&padapter->mlmepriv.dynamic_chk_timer, 2000);
 
@@ -1098,7 +1088,6 @@ int rtw_ips_pwr_up(struct adapter *padapter)
 
 	DBG_871X("<===  rtw_ips_pwr_up..............\n");
 	return result;
-
 }
 
 void rtw_ips_pwr_down(struct adapter *padapter)
@@ -1119,10 +1108,7 @@ void rtw_ips_dev_unload(struct adapter *padapter)
 
 
 	if (padapter->bSurpriseRemoved == false)
-	{
 		rtw_hal_deinit(padapter);
-	}
-
 }
 
 
@@ -1132,15 +1118,14 @@ static int pm_netdev_open(struct net_device *pnetdev, u8 bnormal)
 
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(pnetdev);
 
-	if (true == bnormal)
-	{
+	if (true == bnormal) {
 		if (mutex_lock_interruptible(&(adapter_to_dvobj(padapter)->hw_init_mutex)) == 0) {
 			status = _netdev_open(pnetdev);
 			mutex_unlock(&(adapter_to_dvobj(padapter)->hw_init_mutex));
 		}
 	}
 	else
-		status =  (_SUCCESS == ips_netdrv_open(padapter))?(0):(-1);
+		status =  (_SUCCESS == ips_netdrv_open(padapter)) ? (0) : (-1);
 
 	return status;
 }
@@ -1152,8 +1137,7 @@ static int netdev_close(struct net_device *pnetdev)
 
 	RT_TRACE(_module_os_intfs_c_, _drv_info_, ("+871x_drv - drv_close\n"));
 
-	if (pwrctl->bInternalAutoSuspend == true)
-	{
+	if (pwrctl->bInternalAutoSuspend == true) {
 		/* rtw_pwr_wakeup(padapter); */
 		if (pwrctl->rf_pwrstate == rf_off)
 			pwrctl->ps_flag = true;
@@ -1174,8 +1158,7 @@ static int netdev_close(struct net_device *pnetdev)
 		DBG_871X("(2)871x_drv - drv_close, bup =%d, hw_init_completed =%d\n", padapter->bup, padapter->hw_init_completed);
 
 		/* s1. */
-		if (pnetdev)
-		{
+		if (pnetdev) {
 			if (!rtw_netif_queue_stopped(pnetdev))
 				rtw_netif_stop_queue(pnetdev);
 		}
@@ -1198,12 +1181,11 @@ static int netdev_close(struct net_device *pnetdev)
 	DBG_871X("-871x_drv - drv_close, bup =%d\n", padapter->bup);
 
 	return 0;
-
 }
 
 void rtw_ndev_destructor(struct net_device *ndev)
 {
-	DBG_871X(FUNC_NDEV_FMT"\n", FUNC_NDEV_ARG(ndev));
+	DBG_871X(FUNC_NDEV_FMT "\n", FUNC_NDEV_ARG(ndev));
 
 	if (ndev->ieee80211_ptr)
 		kfree((u8 *)ndev->ieee80211_ptr);
@@ -1219,8 +1201,7 @@ void rtw_dev_unload(struct adapter *padapter)
 
 	RT_TRACE(_module_hci_intfs_c_, _drv_notice_, ("+%s\n", __func__));
 
-	if (padapter->bup == true)
-	{
+	if (padapter->bup == true) {
 		DBG_871X("===> %s\n", __func__);
 
 		padapter->bDriverStopped = true;
@@ -1257,12 +1238,11 @@ void rtw_dev_unload(struct adapter *padapter)
 			DBG_871X_LEVEL(_drv_always_, "%s: driver not in IPS\n", __func__);
 		}
 
-		if (padapter->bSurpriseRemoved == false)
-		{
+		if (padapter->bSurpriseRemoved == false) {
 			rtw_btcoex_IpsNotify(padapter, pwrctl->ips_mode_req);
 #ifdef CONFIG_WOWLAN
 			if (pwrctl->bSupportRemoteWakeup == true &&
-				pwrctl->wowlan_mode ==true) {
+				pwrctl->wowlan_mode == true) {
 				DBG_871X_LEVEL(_drv_always_, "%s bSupportRemoteWakeup ==true  do not run rtw_hal_deinit()\n", __func__);
 			}
 			else
@@ -1292,12 +1272,11 @@ static int rtw_suspend_free_assoc_resource(struct adapter *padapter)
 {
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 
 	if (rtw_chk_roam_flags(padapter, RTW_ROAM_ON_RESUME)) {
 		if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
-			&& check_fwstate(pmlmepriv, _FW_LINKED))
-		{
+			&& check_fwstate(pmlmepriv, _FW_LINKED)) {
 			DBG_871X("%s %s(" MAC_FMT "), length:%d assoc_ssid.length:%d\n", __func__,
 					pmlmepriv->cur_network.network.Ssid.Ssid,
 					MAC_ARG(pmlmepriv->cur_network.network.MacAddress),
@@ -1307,14 +1286,12 @@ static int rtw_suspend_free_assoc_resource(struct adapter *padapter)
 		}
 	}
 
-	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && check_fwstate(pmlmepriv, _FW_LINKED))
-	{
+	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && check_fwstate(pmlmepriv, _FW_LINKED)) {
 		rtw_disassoc_cmd(padapter, 0, false);
 		/* s2-2.  indicate disconnect to os */
 		rtw_indicate_disconnect(padapter);
 	}
-	else if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
-	{
+	else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
 		rtw_sta_flush(padapter);
 	}
 
@@ -1327,13 +1304,12 @@ static int rtw_suspend_free_assoc_resource(struct adapter *padapter)
 	if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY))
 		rtw_indicate_scan_done(padapter, 1);
 
-	if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true)
-	{
+	if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING) == true) {
 		DBG_871X_LEVEL(_drv_always_, "%s: fw_under_linking\n", __func__);
 		rtw_indicate_disconnect(padapter);
 	}
 
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 	return _SUCCESS;
 }
 
@@ -1347,7 +1323,7 @@ int rtw_suspend_wow(struct adapter *padapter)
 	struct wowlan_ioctl_param poidparam;
 	int ret = _SUCCESS;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 
 
 	DBG_871X("wowlan_mode: %d\n", pwrpriv->wowlan_mode);
@@ -1379,8 +1355,7 @@ int rtw_suspend_wow(struct adapter *padapter)
 		padapter->HalFunc.SetHwRegHandler(padapter, HW_VAR_WOWLAN, (u8 *)&poidparam);
 		if (rtw_chk_roam_flags(padapter, RTW_ROAM_ON_RESUME)) {
 			if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)
-				&& check_fwstate(pmlmepriv, _FW_LINKED))
-			{
+				&& check_fwstate(pmlmepriv, _FW_LINKED)) {
 				DBG_871X("%s %s(" MAC_FMT "), length:%d assoc_ssid.length:%d\n", __func__,
 						pmlmepriv->cur_network.network.Ssid.Ssid,
 						MAC_ARG(pmlmepriv->cur_network.network.MacAddress),
@@ -1393,15 +1368,14 @@ int rtw_suspend_wow(struct adapter *padapter)
 
 		DBG_871X_LEVEL(_drv_always_, "%s: wowmode suspending\n", __func__);
 
-		if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true)
-		{
+		if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY) == true) {
 			DBG_871X_LEVEL(_drv_always_, "%s: fw_under_survey\n", __func__);
 			rtw_indicate_scan_done(padapter, 1);
 			clr_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
 		}
 
 		if (rtw_get_ch_setting_union(padapter, &ch, &bw, &offset) != 0) {
-			DBG_871X(FUNC_ADPT_FMT" back to linked/linking union - ch:%u, bw:%u, offset:%u\n",
+			DBG_871X(FUNC_ADPT_FMT " back to linked/linking union - ch:%u, bw:%u, offset:%u\n",
 				FUNC_ADPT_ARG(padapter), ch, bw, offset);
 			set_channel_bwmode(padapter, ch, offset, bw);
 		}
@@ -1410,13 +1384,11 @@ int rtw_suspend_wow(struct adapter *padapter)
 			DBG_871X_LEVEL(_drv_always_, "%s: pno: %d\n", __func__, pwrpriv->wowlan_pno_enable);
 		else
 			rtw_set_ps_mode(padapter, PS_MODE_DTIM, 0, 0, "WOWLAN");
-
 	}
-	else
-	{
+	else {
 		DBG_871X_LEVEL(_drv_always_, "%s: ### ERROR ### wowlan_mode =%d\n", __func__, pwrpriv->wowlan_mode);
 	}
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 	return ret;
 }
 #endif /* ifdef CONFIG_WOWLAN */
@@ -1430,7 +1402,7 @@ int rtw_suspend_ap_wow(struct adapter *padapter)
 	struct wowlan_ioctl_param poidparam;
 	int ret = _SUCCESS;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 
 	pwrpriv->wowlan_ap_mode = true;
 
@@ -1462,14 +1434,14 @@ int rtw_suspend_ap_wow(struct adapter *padapter)
 	DBG_871X_LEVEL(_drv_always_, "%s: wowmode suspending\n", __func__);
 
 	if (rtw_get_ch_setting_union(padapter, &ch, &bw, &offset) != 0) {
-		DBG_871X(FUNC_ADPT_FMT" back to linked/linking union - ch:%u, bw:%u, offset:%u\n",
+		DBG_871X(FUNC_ADPT_FMT " back to linked/linking union - ch:%u, bw:%u, offset:%u\n",
 			 FUNC_ADPT_ARG(padapter), ch, bw, offset);
 		set_channel_bwmode(padapter, ch, offset, bw);
 	}
 
 	rtw_set_ps_mode(padapter, PS_MODE_MIN, 0, 0, "AP-WOWLAN");
 
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 	return ret;
 }
 #endif /* ifdef CONFIG_AP_WOWLAN */
@@ -1480,7 +1452,7 @@ static int rtw_suspend_normal(struct adapter *padapter)
 	struct net_device *pnetdev = padapter->pnetdev;
 	int ret = _SUCCESS;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 	if (pnetdev) {
 		netif_carrier_off(pnetdev);
 		rtw_netif_stop_queue(pnetdev);
@@ -1489,10 +1461,8 @@ static int rtw_suspend_normal(struct adapter *padapter)
 	rtw_suspend_free_assoc_resource(padapter);
 
 	if ((rtw_hal_check_ips_status(padapter) == true)
-		|| (adapter_to_pwrctl(padapter)->rf_pwrstate == rf_off))
-	{
+		|| (adapter_to_pwrctl(padapter)->rf_pwrstate == rf_off)) {
 		DBG_871X_LEVEL(_drv_always_, "%s: ### ERROR #### driver in IPS ####ERROR###!!!\n", __func__);
-
 	}
 
 	rtw_dev_unload(padapter);
@@ -1501,7 +1471,7 @@ static int rtw_suspend_normal(struct adapter *padapter)
 	if (padapter->intf_deinit)
 		padapter->intf_deinit(adapter_to_dvobj(padapter));
 
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 	return ret;
 }
 
@@ -1524,8 +1494,7 @@ int rtw_suspend_common(struct adapter *padapter)
 	while (pwrpriv->bips_processing == true)
 		msleep(1);
 
-	if ((!padapter->bup) || (padapter->bDriverStopped)||(padapter->bSurpriseRemoved))
-	{
+	if ((!padapter->bup) || (padapter->bDriverStopped) || (padapter->bSurpriseRemoved)) {
 		DBG_871X("%s bup =%d bDriverStopped =%d bSurpriseRemoved = %d\n", __func__
 			, padapter->bup, padapter->bDriverStopped, padapter->bSurpriseRemoved);
 		pdbgpriv->dbg_suspend_error_cnt++;
@@ -1599,7 +1568,7 @@ int rtw_resume_process_wow(struct adapter *padapter)
 	struct sta_info *psta = NULL;
 	int ret = _SUCCESS;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 
 	if (padapter) {
 		pnetdev = padapter->pnetdev;
@@ -1641,7 +1610,7 @@ int rtw_resume_process_wow(struct adapter *padapter)
 		}
 
 		/* Disable WOW, set H2C command */
-		poidparam.subcode =WOWLAN_DISABLE;
+		poidparam.subcode = WOWLAN_DISABLE;
 		padapter->HalFunc.SetHwRegHandler(padapter, HW_VAR_WOWLAN, (u8 *)&poidparam);
 
 		psta = rtw_get_stainfo(&padapter->stapriv, get_bssid(&padapter->mlmepriv));
@@ -1667,11 +1636,10 @@ int rtw_resume_process_wow(struct adapter *padapter)
 		}
 	}
 	else {
-
 		DBG_871X_LEVEL(_drv_always_, "%s: ### ERROR ### wowlan_mode =%d\n", __func__, pwrpriv->wowlan_mode);
 	}
 
-	if (padapter->pid[1]!= 0) {
+	if (padapter->pid[1] != 0) {
 		DBG_871X("pid[1]:%d\n", padapter->pid[1]);
 		rtw_signal_process(padapter->pid[1], SIGUSR2);
 	}
@@ -1680,7 +1648,6 @@ int rtw_resume_process_wow(struct adapter *padapter)
 		if (pwrpriv->wowlan_wake_reason == FWDecisionDisconnect ||
 			pwrpriv->wowlan_wake_reason == Rx_DisAssoc ||
 			pwrpriv->wowlan_wake_reason == Rx_DeAuth) {
-
 			DBG_871X("%s: disconnect reason: %02x\n", __func__,
 						pwrpriv->wowlan_wake_reason);
 			rtw_indicate_disconnect(padapter);
@@ -1705,12 +1672,12 @@ int rtw_resume_process_wow(struct adapter *padapter)
 		DBG_871X_LEVEL(_drv_always_, "do not reset timer\n");
 	}
 
-	pwrpriv->wowlan_mode =false;
+	pwrpriv->wowlan_mode = false;
 
 	/* clean driver side wake up reason. */
 	pwrpriv->wowlan_wake_reason = 0;
 exit:
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 	return ret;
 }
 #endif /* ifdef CONFIG_WOWLAN */
@@ -1725,7 +1692,7 @@ int rtw_resume_process_ap_wow(struct adapter *padapter)
 	struct wowlan_ioctl_param poidparam;
 	int ret = _SUCCESS;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 
 	if (padapter) {
 		pnetdev = padapter->pnetdev;
@@ -1774,7 +1741,7 @@ int rtw_resume_process_ap_wow(struct adapter *padapter)
 			rtw_netif_wake_queue(pnetdev);
 	}
 
-	if (padapter->pid[1]!= 0) {
+	if (padapter->pid[1] != 0) {
 		DBG_871X("pid[1]:%d\n", padapter->pid[1]);
 		rtw_signal_process(padapter->pid[1], SIGUSR2);
 	}
@@ -1785,7 +1752,7 @@ int rtw_resume_process_ap_wow(struct adapter *padapter)
 	/* clean driver side wake up reason. */
 	pwrpriv->wowlan_wake_reason = 0;
 exit:
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 	return ret;
 }
 #endif /* ifdef CONFIG_APWOWLAN */
@@ -1811,19 +1778,17 @@ static int rtw_resume_process_normal(struct adapter *padapter)
 	psdpriv = padapter->dvobj;
 	pdbgpriv = &psdpriv->drv_dbg;
 
-	DBG_871X("==> "FUNC_ADPT_FMT" entry....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("==> " FUNC_ADPT_FMT " entry....\n", FUNC_ADPT_ARG(padapter));
 	/*  interface init */
 	/* if (sdio_init(adapter_to_dvobj(padapter)) != _SUCCESS) */
-	if ((padapter->intf_init) && (padapter->intf_init(adapter_to_dvobj(padapter)) != _SUCCESS))
-	{
+	if ((padapter->intf_init) && (padapter->intf_init(adapter_to_dvobj(padapter)) != _SUCCESS)) {
 		ret = -1;
 		RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("%s: initialize SDIO Failed!!\n", __func__));
 		goto exit;
 	}
 	rtw_hal_disable_interrupt(padapter);
 	/* if (sdio_alloc_irq(adapter_to_dvobj(padapter)) != _SUCCESS) */
-	if ((padapter->intf_alloc_irq) && (padapter->intf_alloc_irq(adapter_to_dvobj(padapter)) != _SUCCESS))
-	{
+	if ((padapter->intf_alloc_irq) && (padapter->intf_alloc_irq(adapter_to_dvobj(padapter)) != _SUCCESS)) {
 		ret = -1;
 		RT_TRACE(_module_hci_intfs_c_, _drv_err_, ("%s: sdio_alloc_irq Failed!!\n", __func__));
 		goto exit;
@@ -1842,28 +1807,28 @@ static int rtw_resume_process_normal(struct adapter *padapter)
 	netif_device_attach(pnetdev);
 	netif_carrier_on(pnetdev);
 
-	if (padapter->pid[1]!= 0) {
+	if (padapter->pid[1] != 0) {
 		DBG_871X("pid[1]:%d\n", padapter->pid[1]);
 		rtw_signal_process(padapter->pid[1], SIGUSR2);
 	}
 
 
 	if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
-		DBG_871X(FUNC_ADPT_FMT" fwstate:0x%08x - WIFI_STATION_STATE\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
+		DBG_871X(FUNC_ADPT_FMT " fwstate:0x%08x - WIFI_STATION_STATE\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
 
 		if (rtw_chk_roam_flags(padapter, RTW_ROAM_ON_RESUME))
 			rtw_roaming(padapter, NULL);
 
 	} else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) {
-		DBG_871X(FUNC_ADPT_FMT" fwstate:0x%08x - WIFI_AP_STATE\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
+		DBG_871X(FUNC_ADPT_FMT " fwstate:0x%08x - WIFI_AP_STATE\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
 		rtw_ap_restore_network(padapter);
 	} else if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
-		DBG_871X(FUNC_ADPT_FMT" fwstate:0x%08x - WIFI_ADHOC_STATE\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
+		DBG_871X(FUNC_ADPT_FMT " fwstate:0x%08x - WIFI_ADHOC_STATE\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
 	} else {
-		DBG_871X(FUNC_ADPT_FMT" fwstate:0x%08x - ???\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
+		DBG_871X(FUNC_ADPT_FMT " fwstate:0x%08x - ???\n", FUNC_ADPT_ARG(padapter), get_fwstate(pmlmepriv));
 	}
 
-	DBG_871X("<== "FUNC_ADPT_FMT" exit....\n", FUNC_ADPT_ARG(padapter));
+	DBG_871X("<== " FUNC_ADPT_FMT " exit....\n", FUNC_ADPT_ARG(padapter));
 
 exit:
 	return ret;
diff --git a/drivers/staging/rtl8723bs/os_dep/osdep_service.c b/drivers/staging/rtl8723bs/os_dep/osdep_service.c
index a05daf06a870..f4221952dd1b 100644
--- a/drivers/staging/rtl8723bs/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8723bs/os_dep/osdep_service.c
@@ -30,22 +30,17 @@ inline int RTW_STATUS_CODE(int error_code)
 	return _FAIL;
 }
 
-u8 *_rtw_malloc(u32 sz)
+void *_rtw_malloc(u32 sz)
 {
-	u8 *pbuf = NULL;
-
-	pbuf = kmalloc(sz, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
-
-	return pbuf;
+	return kmalloc(sz, in_interrupt() ? GFP_ATOMIC : GFP_KERNEL);
 }
 
-u8 *_rtw_zmalloc(u32 sz)
+void *_rtw_zmalloc(u32 sz)
 {
-	u8 *pbuf = _rtw_malloc(sz);
+	void *pbuf = _rtw_malloc(sz);
 
-	if (pbuf != NULL) {
+	if (pbuf)
 		memset(pbuf, 0, sz);
-	}
 
 	return pbuf;
 }
@@ -71,13 +66,6 @@ inline int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb)
 	return netif_rx(skb);
 }
 
-void rtw_init_timer(_timer *ptimer, void *padapter, void *pfunc)
-{
-	struct adapter *adapter = padapter;
-
-	_init_timer(ptimer, adapter->pnetdev, pfunc, adapter);
-}
-
 void _rtw_init_queue(struct __queue *pqueue)
 {
 	INIT_LIST_HEAD(&(pqueue->queue));
@@ -470,7 +458,7 @@ struct rtw_cbuf *rtw_cbuf_alloc(u32 size)
 {
 	struct rtw_cbuf *cbuf;
 
-	cbuf = (struct rtw_cbuf *)rtw_malloc(sizeof(*cbuf) + sizeof(void*)*size);
+	cbuf = rtw_malloc(sizeof(*cbuf) + sizeof(void *) * size);
 
 	if (cbuf) {
 		cbuf->write = cbuf->read = 0;
diff --git a/drivers/staging/rtl8723bs/os_dep/recv_linux.c b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
index f42e00081e0e..e804b430931c 100644
--- a/drivers/staging/rtl8723bs/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8723bs/os_dep/recv_linux.c
@@ -356,8 +356,7 @@ _recv_indicatepkt_drop:
 
 void rtw_init_recv_timer(struct recv_reorder_ctrl *preorder_ctrl)
 {
-	struct adapter *padapter = preorder_ctrl->padapter;
-
-	_init_timer(&(preorder_ctrl->reordering_ctrl_timer), padapter->pnetdev, rtw_reordering_ctrl_timeout_handler, preorder_ctrl);
+	timer_setup(&preorder_ctrl->reordering_ctrl_timer,
+		    rtw_reordering_ctrl_timeout_handler, 0);
 
 }
diff --git a/drivers/staging/rtl8723bs/os_dep/rtw_proc.c b/drivers/staging/rtl8723bs/os_dep/rtw_proc.c
index 92277457aba4..9a885e626d1c 100644
--- a/drivers/staging/rtl8723bs/os_dep/rtw_proc.c
+++ b/drivers/staging/rtl8723bs/os_dep/rtw_proc.c
@@ -87,7 +87,7 @@ static ssize_t proc_set_log_level(struct file *file, const char __user *buffer,
 * rtw_drv_proc:
 * init/deinit when register/unregister driver
 */
-static const struct rtw_proc_hdl drv_proc_hdls [] = {
+static const struct rtw_proc_hdl drv_proc_hdls[] = {
 	{"ver_info", proc_get_drv_version, NULL},
 	{"log_level", proc_get_log_level, proc_set_log_level},
 };
@@ -311,6 +311,8 @@ static ssize_t proc_set_cam(struct file *file, const char __user *buffer, size_t
 
 		if (num < 2)
 			return count;
+		if (id >= TOTAL_CAM_ENTRY)
+			return -EINVAL;
 
 		if (strcmp("c", cmd) == 0) {
 			_clear_cam_entry(adapter, id);
@@ -363,7 +365,7 @@ static int proc_get_cam_cache(struct seq_file *m, void *v)
 * rtw_adapter_proc:
 * init/deinit when register/unregister net_device
 */
-static const struct rtw_proc_hdl adapter_proc_hdls [] = {
+static const struct rtw_proc_hdl adapter_proc_hdls[] = {
 	{"write_reg", proc_get_dummy, proc_set_write_reg},
 	{"read_reg", proc_get_read_reg, proc_set_read_reg},
 	{"fwstate", proc_get_fwstate, NULL},
@@ -598,7 +600,7 @@ ssize_t proc_set_odm_adaptivity(struct file *file, const char __user *buffer, si
 * rtw_odm_proc:
 * init/deinit when register/unregister net_device, along with rtw_adapter_proc
 */
-static const struct rtw_proc_hdl odm_proc_hdls [] = {
+static const struct rtw_proc_hdl odm_proc_hdls[] = {
 	{"dbg_comp", proc_get_odm_dbg_comp, proc_set_odm_dbg_comp},
 	{"dbg_level", proc_get_odm_dbg_level, proc_set_odm_dbg_level},
 	{"ability", proc_get_odm_ability, proc_set_odm_ability},
diff --git a/drivers/staging/rtl8723bs/os_dep/wifi_regd.c b/drivers/staging/rtl8723bs/os_dep/wifi_regd.c
index 305e88a6b2ca..aa2f62acc994 100644
--- a/drivers/staging/rtl8723bs/os_dep/wifi_regd.c
+++ b/drivers/staging/rtl8723bs/os_dep/wifi_regd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /******************************************************************************
  *
  * Copyright(c) 2009-2010  Realtek Corporation.
diff --git a/drivers/staging/rtlwifi/base.c b/drivers/staging/rtlwifi/base.c
index b88b0e8edd3d..c947def37d31 100644
--- a/drivers/staging/rtlwifi/base.c
+++ b/drivers/staging/rtlwifi/base.c
@@ -465,10 +465,10 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 
 	/* <1> timer */
-	setup_timer(&rtlpriv->works.watchdog_timer,
-		    rtl_watch_dog_timer_callback, (unsigned long)hw);
-	setup_timer(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
-		    rtl_easy_concurrent_retrytimer_callback, (unsigned long)hw);
+	timer_setup(&rtlpriv->works.watchdog_timer,
+		    rtl_watch_dog_timer_callback, 0);
+	timer_setup(&rtlpriv->works.dualmac_easyconcurrent_retrytimer,
+		    rtl_easy_concurrent_retrytimer_callback, 0);
 	/* <2> work queue */
 	rtlpriv->works.hw = hw;
 	rtlpriv->works.rtl_wq = alloc_workqueue("%s", 0, 0, rtlpriv->cfg->name);
@@ -637,7 +637,7 @@ static void _rtl_query_shortgi(struct ieee80211_hw *hw,
 	sgi_20 = sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_20;
 	sgi_80 = sta->vht_cap.cap & IEEE80211_VHT_CAP_SHORT_GI_80;
 
-	if ((!sta->ht_cap.ht_supported) && (!sta->vht_cap.vht_supported))
+	if (!sta->ht_cap.ht_supported && !sta->vht_cap.vht_supported)
 		return;
 
 	if (!sgi_40 && !sgi_20)
@@ -734,10 +734,10 @@ u8 rtl_mrate_idx_to_arfr_id(
 		ret = RATEID_IDX_B;
 		break;
 	case RATR_INX_WIRELESS_MC:
-		if ((wirelessmode == WIRELESS_MODE_B) ||
-		    (wirelessmode == WIRELESS_MODE_G) ||
-		    (wirelessmode == WIRELESS_MODE_N_24G) ||
-		    (wirelessmode == WIRELESS_MODE_AC_24G))
+		if (wirelessmode == WIRELESS_MODE_B ||
+		    wirelessmode == WIRELESS_MODE_G ||
+		    wirelessmode == WIRELESS_MODE_N_24G ||
+		    wirelessmode == WIRELESS_MODE_AC_24G)
 			ret = RATEID_IDX_BG;
 		else
 			ret = RATEID_IDX_G;
@@ -920,7 +920,7 @@ static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 		else if ((tx_mcs_map  & 0x000c) >> 2 ==
 			IEEE80211_VHT_MCS_SUPPORT_0_8)
 			hw_rate =
-			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
+			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS8];
 		else
 			hw_rate =
 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_2SS_MCS9];
@@ -932,7 +932,7 @@ static u8 _rtl_get_vht_highest_n_rate(struct ieee80211_hw *hw,
 		else if ((tx_mcs_map  & 0x0003) ==
 			IEEE80211_VHT_MCS_SUPPORT_0_8)
 			hw_rate =
-			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
+			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS8];
 		else
 			hw_rate =
 			rtlpriv->cfg->maps[RTL_RC_VHT_RATE_1SS_MCS9];
@@ -948,8 +948,8 @@ static u8 _rtl_get_highest_n_rate(struct ieee80211_hw *hw,
 	struct rtl_phy *rtlphy = &rtlpriv->phy;
 	u8 hw_rate;
 
-	if ((get_rf_type(rtlphy) == RF_2T2R) &&
-	    (sta->ht_cap.mcs.rx_mask[1] != 0))
+	if (get_rf_type(rtlphy) == RF_2T2R &&
+	    sta->ht_cap.mcs.rx_mask[1] != 0)
 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS15];
 	else
 		hw_rate = rtlpriv->cfg->maps[RTL_RC_HT_RATEMCS7];
@@ -1277,7 +1277,7 @@ void rtl_get_tcb_desc(struct ieee80211_hw *hw,
 				tcb_desc->hw_rate =
 				_rtl_get_vht_highest_n_rate(hw, sta);
 			} else {
-				if (sta && (sta->ht_cap.ht_supported)) {
+				if (sta && sta->ht_cap.ht_supported) {
 					tcb_desc->hw_rate =
 					    _rtl_get_highest_n_rate(hw, sta);
 				} else {
@@ -2080,9 +2080,9 @@ void rtl_watchdog_wq_callback(void *data)
 		    rtlpriv->btcoexist.btc_ops->btc_is_bt_ctrl_lps(rtlpriv))
 			goto label_lps_done;
 
-		if (((rtlpriv->link_info.num_rx_inperiod +
-		      rtlpriv->link_info.num_tx_inperiod) > 8) ||
-		    (rtlpriv->link_info.num_rx_inperiod > 2))
+		if (rtlpriv->link_info.num_rx_inperiod +
+		      rtlpriv->link_info.num_tx_inperiod > 8 ||
+		    rtlpriv->link_info.num_rx_inperiod > 2)
 			rtl_lps_leave(hw);
 		else
 			rtl_lps_enter(hw);
@@ -2161,10 +2161,9 @@ label_lps_done:
 	rtl_scan_list_expire(hw);
 }
 
-void rtl_watch_dog_timer_callback(unsigned long data)
+void rtl_watch_dog_timer_callback(struct timer_list *t)
 {
-	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_priv *rtlpriv = from_timer(rtlpriv, t, works.watchdog_timer);
 
 	queue_delayed_work(rtlpriv->works.rtl_wq,
 			   &rtlpriv->works.watchdog_wq, 0);
@@ -2270,10 +2269,11 @@ void rtl_c2hcmd_wq_callback(void *data)
 	rtl_c2hcmd_launcher(hw, 1);
 }
 
-void rtl_easy_concurrent_retrytimer_callback(unsigned long data)
+void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t)
 {
-	struct ieee80211_hw *hw = (struct ieee80211_hw *)data;
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_priv *rtlpriv =
+		from_timer(rtlpriv, t, works.dualmac_easyconcurrent_retrytimer);
+	struct ieee80211_hw *hw = rtlpriv->hw;
 	struct rtl_priv *buddy_priv = rtlpriv->buddy_priv;
 
 	if (!buddy_priv)
@@ -2334,9 +2334,7 @@ static struct sk_buff *rtl_make_smps_action(struct ieee80211_hw *hw,
 	case IEEE80211_SMPS_AUTOMATIC:/* 0 */
 	case IEEE80211_SMPS_NUM_MODES:/* 4 */
 		WARN_ON(1);
-	/* Here will get a 'MISSING_BREAK' in Coverity Test, just ignore it.
-	 * According to Kernel Code, here is right.
-	 */
+	/* fall through */
 	case IEEE80211_SMPS_OFF:/* 1 */ /*MIMO_PS_NOLIMIT*/
 		action_frame->u.action.u.ht_smps.smps_control =
 				WLAN_HT_SMPS_CONTROL_DISABLED;/* 0 */
@@ -2552,8 +2550,8 @@ bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data, unsigned int len)
 	bcn_key.valid = true;
 
 	/* update cur_beacon_keys or compare beacon key */
-	if ((rtlpriv->mac80211.link_state != MAC80211_LINKED) &&
-	    (rtlpriv->mac80211.link_state != MAC80211_LINKED_SCANNING))
+	if (rtlpriv->mac80211.link_state != MAC80211_LINKED &&
+	    rtlpriv->mac80211.link_state != MAC80211_LINKED_SCANNING)
 		return true;
 
 	if (!cur_bcn_key->valid) {
@@ -2576,8 +2574,8 @@ bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data, unsigned int len)
 		goto chk_exit;
 	}
 
-	if ((cur_bcn_key->bcn_channel == bcn_key.bcn_channel) &&
-	    (cur_bcn_key->ht_cap_info == bcn_key.ht_cap_info)) {
+	if (cur_bcn_key->bcn_channel == bcn_key.bcn_channel &&
+	    cur_bcn_key->ht_cap_info == bcn_key.ht_cap_info) {
 		/* Beacon HT info IE, secondary channel offset check */
 		/* 40M -> 20M */
 		if (cur_bcn_key->ht_info_infos_0_sco >
diff --git a/drivers/staging/rtlwifi/base.h b/drivers/staging/rtlwifi/base.h
index 1829712dc4e2..b7f92b32978e 100644
--- a/drivers/staging/rtlwifi/base.h
+++ b/drivers/staging/rtlwifi/base.h
@@ -120,7 +120,7 @@ void rtl_init_rx_config(struct ieee80211_hw *hw);
 void rtl_init_rfkill(struct ieee80211_hw *hw);
 void rtl_deinit_rfkill(struct ieee80211_hw *hw);
 
-void rtl_watch_dog_timer_callback(unsigned long data);
+void rtl_watch_dog_timer_callback(struct timer_list *t);
 void rtl_deinit_deferred_work(struct ieee80211_hw *hw);
 
 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx);
@@ -176,7 +176,7 @@ int rtl_send_smps_action(struct ieee80211_hw *hw,
 u8 *rtl_find_ie(u8 *data, unsigned int len, u8 ie);
 void rtl_recognize_peer(struct ieee80211_hw *hw, u8 *data, unsigned int len);
 u8 rtl_tid_to_ac(u8 tid);
-void rtl_easy_concurrent_retrytimer_callback(unsigned long data);
+void rtl_easy_concurrent_retrytimer_callback(struct timer_list *t);
 extern struct rtl_global_var rtl_global_var;
 void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation);
 bool rtl_check_beacon_key(struct ieee80211_hw *hw, void *data,
diff --git a/drivers/staging/rtlwifi/core.c b/drivers/staging/rtlwifi/core.c
index d33847d0550d..b00e51df984f 100644
--- a/drivers/staging/rtlwifi/core.c
+++ b/drivers/staging/rtlwifi/core.c
@@ -49,43 +49,6 @@ u8 channel5g_80m[CHANNEL_MAX_NUMBER_5G_80M] = {
 	42, 58, 106, 122, 138, 155, 171
 };
 
-void rtl_addr_delay(u32 addr)
-{
-	if (addr == 0xfe)
-		mdelay(50);
-	else if (addr == 0xfd)
-		msleep(5);
-	else if (addr == 0xfc)
-		msleep(1);
-	else if (addr == 0xfb)
-		usleep_range(50, 100);
-	else if (addr == 0xfa)
-		usleep_range(5, 10);
-	else if (addr == 0xf9)
-		usleep_range(1, 2);
-}
-
-void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
-		     u32 mask, u32 data)
-{
-	if (addr >= 0xf9 && addr <= 0xfe) {
-		rtl_addr_delay(addr);
-	} else {
-		rtl_set_rfreg(hw, rfpath, addr, mask, data);
-		udelay(1);
-	}
-}
-
-void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data)
-{
-	if (addr >= 0xf9 && addr <= 0xfe) {
-		rtl_addr_delay(addr);
-	} else {
-		rtl_set_bbreg(hw, addr, MASKDWORD, data);
-		udelay(1);
-	}
-}
-
 static void rtl_fw_do_work(const struct firmware *firmware, void *context,
 			   bool is_wow)
 {
@@ -153,7 +116,7 @@ static int rtl_op_start(struct ieee80211_hw *hw)
 	mutex_lock(&rtlpriv->locks.conf_mutex);
 	err = rtlpriv->intf_ops->adapter_start(hw);
 	if (!err)
-		rtl_watch_dog_timer_callback((unsigned long)hw);
+		rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);
 	mutex_unlock(&rtlpriv->locks.conf_mutex);
 	return err;
 }
@@ -339,9 +302,9 @@ static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 	mutex_lock(&rtlpriv->locks.conf_mutex);
 
 	/* Free beacon resources */
-	if ((vif->type == NL80211_IFTYPE_AP) ||
-	    (vif->type == NL80211_IFTYPE_ADHOC) ||
-	    (vif->type == NL80211_IFTYPE_MESH_POINT)) {
+	if (vif->type == NL80211_IFTYPE_AP ||
+	    vif->type == NL80211_IFTYPE_ADHOC ||
+	    vif->type == NL80211_IFTYPE_MESH_POINT) {
 		if (mac->beacon_enabled == 1) {
 			mac->beacon_enabled = 0;
 			rtlpriv->cfg->ops->update_interrupt_mask(hw, 0,
@@ -449,7 +412,8 @@ static void _rtl_add_wowlan_patterns(struct ieee80211_hw *hw,
 	for (i = 0; i < wow->n_patterns; i++) {
 		memset(&rtl_pattern, 0, sizeof(struct rtl_wow_pattern));
 		memset(mask, 0, MAX_WOL_BIT_MASK_SIZE);
-		if (patterns[i].pattern_len > MAX_WOL_PATTERN_SIZE) {
+		if (patterns[i].pattern_len < 0 ||
+		    patterns[i].pattern_len > MAX_WOL_PATTERN_SIZE) {
 			RT_TRACE(rtlpriv, COMP_POWER, DBG_WARNING,
 				 "Pattern[%d] is too long\n", i);
 			continue;
@@ -856,8 +820,8 @@ static void rtl_op_configure_filter(struct ieee80211_hw *hw,
 	 * here just used for linked scanning, & linked
 	 * and nolink check bssid is set in set network_type
 	 */
-	if ((changed_flags & FIF_BCN_PRBRESP_PROMISC) &&
-	    (mac->link_state >= MAC80211_LINKED)) {
+	if (changed_flags & FIF_BCN_PRBRESP_PROMISC &&
+	    mac->link_state >= MAC80211_LINKED) {
 		if (mac->opmode != NL80211_IFTYPE_AP &&
 		    mac->opmode != NL80211_IFTYPE_MESH_POINT) {
 			if (*new_flags & FIF_BCN_PRBRESP_PROMISC)
@@ -1078,10 +1042,10 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 
 	mutex_lock(&rtlpriv->locks.conf_mutex);
-	if ((vif->type == NL80211_IFTYPE_ADHOC) ||
-	    (vif->type == NL80211_IFTYPE_AP) ||
-	    (vif->type == NL80211_IFTYPE_MESH_POINT)) {
-		if ((changed & BSS_CHANGED_BEACON) ||
+	if (vif->type == NL80211_IFTYPE_ADHOC ||
+	    vif->type == NL80211_IFTYPE_AP ||
+	    vif->type == NL80211_IFTYPE_MESH_POINT) {
+		if (changed & BSS_CHANGED_BEACON ||
 		    (changed & BSS_CHANGED_BEACON_ENABLED &&
 		     bss_conf->enable_beacon)) {
 			if (mac->beacon_enabled == 0) {
@@ -1160,7 +1124,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 			if (rtlpriv->dm.supp_phymode_switch) {
 				if (sta->ht_cap.ht_supported)
 					rtl_send_smps_action(hw, sta,
-							IEEE80211_SMPS_STATIC);
+							     IEEE80211_SMPS_STATIC);
 			}
 
 			if (rtlhal->current_bandtype == BAND_ON_5G) {
@@ -1224,7 +1188,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 				cfg80211_unlink_bss(hw->wiphy, bss);
 				cfg80211_put_bss(hw->wiphy, bss);
 				RT_TRACE(rtlpriv, COMP_MAC80211, DBG_DMESG,
-					"cfg80211_unlink !!\n");
+					 "cfg80211_unlink !!\n");
 			}
 
 			eth_zero_addr(mac->bssid);
@@ -1621,8 +1585,8 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		return -ENOSPC;	/*User disabled HW-crypto */
 	}
 	/* To support IBSS, use sw-crypto for GTK */
-	if (((vif->type == NL80211_IFTYPE_ADHOC) ||
-	     (vif->type == NL80211_IFTYPE_MESH_POINT)) &&
+	if ((vif->type == NL80211_IFTYPE_ADHOC ||
+	     vif->type == NL80211_IFTYPE_MESH_POINT) &&
 	    !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE))
 		return -ENOSPC;
 	RT_TRACE(rtlpriv, COMP_SEC, DBG_DMESG,
@@ -1697,7 +1661,7 @@ static int rtl_op_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 			rtlpriv->cfg->ops->enable_hw_sec(hw);
 		}
 	} else {
-		if ((!group_key) || (vif->type == NL80211_IFTYPE_ADHOC) ||
+		if (!group_key || vif->type == NL80211_IFTYPE_ADHOC ||
 		    rtlpriv->sec.pairwise_enc_algorithm == NO_ENCRYPTION) {
 			if (rtlpriv->sec.pairwise_enc_algorithm ==
 			    NO_ENCRYPTION &&
@@ -1885,7 +1849,7 @@ bool rtl_hal_pwrseqcmdparsing(struct rtl_priv *rtlpriv, u8 cut_version,
 				break;
 			case PWR_CMD_WRITE:
 				RT_TRACE(rtlpriv, COMP_INIT, DBG_TRACE,
-					"%s(): PWR_CMD_WRITE\n", __func__);
+					 "%s(): PWR_CMD_WRITE\n", __func__);
 				offset = GET_PWR_CFG_OFFSET(cfg_cmd);
 
 				/*Read the value from system register*/
diff --git a/drivers/staging/rtlwifi/core.h b/drivers/staging/rtlwifi/core.h
index 782ac2fc4b28..4c2b69412621 100644
--- a/drivers/staging/rtlwifi/core.h
+++ b/drivers/staging/rtlwifi/core.h
@@ -75,10 +75,6 @@ enum dm_dig_connect_e {
 extern const struct ieee80211_ops rtl_ops;
 void rtl_fw_cb(const struct firmware *firmware, void *context);
 void rtl_wowlan_fw_cb(const struct firmware *firmware, void *context);
-void rtl_addr_delay(u32 addr);
-void rtl_rfreg_delay(struct ieee80211_hw *hw, enum radio_path rfpath, u32 addr,
-		     u32 mask, u32 data);
-void rtl_bb_delay(struct ieee80211_hw *hw, u32 addr, u32 data);
 bool rtl_cmd_send_packet(struct ieee80211_hw *hw, struct sk_buff *skb);
 bool rtl_btc_status_false(void);
 void rtl_dm_diginit(struct ieee80211_hw *hw, u32 cur_igval);
diff --git a/drivers/staging/rtlwifi/debug.c b/drivers/staging/rtlwifi/debug.c
index 7446d71c41d1..be8d72cb63db 100644
--- a/drivers/staging/rtlwifi/debug.c
+++ b/drivers/staging/rtlwifi/debug.c
@@ -33,7 +33,7 @@ void _rtl_dbg_trace(struct rtl_priv *rtlpriv, u64 comp, int level,
 		    const char *fmt, ...)
 {
 	if (unlikely((comp & rtlpriv->cfg->mod_params->debug_mask) &&
-		     (level <= rtlpriv->cfg->mod_params->debug_level))) {
+		     level <= rtlpriv->cfg->mod_params->debug_level)) {
 		struct va_format vaf;
 		va_list args;
 
@@ -52,7 +52,7 @@ void _rtl_dbg_print(struct rtl_priv *rtlpriv, u64 comp, int level,
 		    const char *fmt, ...)
 {
 	if (unlikely((comp & rtlpriv->cfg->mod_params->debug_mask) &&
-		     (level <= rtlpriv->cfg->mod_params->debug_level))) {
+		     level <= rtlpriv->cfg->mod_params->debug_level)) {
 		struct va_format vaf;
 		va_list args;
 
@@ -127,10 +127,10 @@ static int rtl_debug_get_mac_page(struct seq_file *m, void *v)
 	return 0;
 }
 
-#define RTL_DEBUG_IMPL_MAC_SERIES(page, addr)		\
-struct rtl_debugfs_priv rtl_debug_priv_mac_ ##page = {	\
-	.cb_read = rtl_debug_get_mac_page,		\
-	.cb_data = addr,				\
+#define RTL_DEBUG_IMPL_MAC_SERIES(page, addr)			\
+static struct rtl_debugfs_priv rtl_debug_priv_mac_ ##page = {	\
+	.cb_read = rtl_debug_get_mac_page,			\
+	.cb_data = addr,					\
 }
 
 RTL_DEBUG_IMPL_MAC_SERIES(0, 0x0000);
@@ -169,10 +169,10 @@ static int rtl_debug_get_bb_page(struct seq_file *m, void *v)
 	return 0;
 }
 
-#define RTL_DEBUG_IMPL_BB_SERIES(page, addr)		\
-struct rtl_debugfs_priv rtl_debug_priv_bb_ ##page = {	\
-	.cb_read = rtl_debug_get_bb_page,		\
-	.cb_data = addr,				\
+#define RTL_DEBUG_IMPL_BB_SERIES(page, addr)			\
+static struct rtl_debugfs_priv rtl_debug_priv_bb_ ##page = {	\
+	.cb_read = rtl_debug_get_bb_page,			\
+	.cb_data = addr,					\
 }
 
 RTL_DEBUG_IMPL_BB_SERIES(8, 0x0800);
@@ -216,10 +216,10 @@ static int rtl_debug_get_reg_rf(struct seq_file *m, void *v)
 	return 0;
 }
 
-#define RTL_DEBUG_IMPL_RF_SERIES(page, addr)		\
-struct rtl_debugfs_priv rtl_debug_priv_rf_ ##page = {	\
-	.cb_read = rtl_debug_get_reg_rf,		\
-	.cb_data = addr,				\
+#define RTL_DEBUG_IMPL_RF_SERIES(page, addr)			\
+static struct rtl_debugfs_priv rtl_debug_priv_rf_ ##page = {	\
+	.cb_read = rtl_debug_get_reg_rf,			\
+	.cb_data = addr,					\
 }
 
 RTL_DEBUG_IMPL_RF_SERIES(a, RF90_PATH_A);
@@ -271,10 +271,10 @@ static int rtl_debug_get_cam_register(struct seq_file *m, void *v)
 	return 0;
 }
 
-#define RTL_DEBUG_IMPL_CAM_SERIES(page, addr)		\
-struct rtl_debugfs_priv rtl_debug_priv_cam_ ##page = {	\
-	.cb_read = rtl_debug_get_cam_register,		\
-	.cb_data = addr,				\
+#define RTL_DEBUG_IMPL_CAM_SERIES(page, addr)			\
+static struct rtl_debugfs_priv rtl_debug_priv_cam_ ##page = {	\
+	.cb_read = rtl_debug_get_cam_register,			\
+	.cb_data = addr,					\
 }
 
 RTL_DEBUG_IMPL_CAM_SERIES(1, 0);
diff --git a/drivers/staging/rtlwifi/efuse.c b/drivers/staging/rtlwifi/efuse.c
index 6d5e657017c6..d74c80d512c9 100644
--- a/drivers/staging/rtlwifi/efuse.c
+++ b/drivers/staging/rtlwifi/efuse.c
@@ -252,12 +252,11 @@ void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf)
 			    sizeof(u8), GFP_ATOMIC);
 	if (!efuse_tbl)
 		return;
-	efuse_word = kzalloc(EFUSE_MAX_WORD_UNIT * sizeof(u16 *), GFP_ATOMIC);
+	efuse_word = kcalloc(EFUSE_MAX_WORD_UNIT, sizeof(u16 *), GFP_ATOMIC);
 	if (!efuse_word)
 		goto out;
 	for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
-		efuse_word[i] = kzalloc(efuse_max_section * sizeof(u16),
-					GFP_ATOMIC);
+		efuse_word[i] = kcalloc(efuse_max_section, sizeof(u16), GFP_ATOMIC);
 		if (!efuse_word[i])
 			goto done;
 	}
diff --git a/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c b/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c
index 5f84526cb5b5..448b1379d220 100644
--- a/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c
+++ b/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_api_88xx.c
@@ -2901,11 +2901,11 @@ halmac_update_datapack_88xx(struct halmac_adapter *halmac_adapter,
 	if (halmac_adapter->fw_version.h2c_version < 4)
 		return HALMAC_RET_FW_NO_SUPPORT;
 
+	driver_adapter = halmac_adapter->driver_adapter;
+
 	HALMAC_RT_TRACE(driver_adapter, HALMAC_MSG_H2C, DBG_DMESG,
 			"[TRACE]%s ==========>\n", __func__);
 
-	driver_adapter = halmac_adapter->driver_adapter;
-
 	HALMAC_RT_TRACE(driver_adapter, HALMAC_MSG_H2C, DBG_DMESG,
 			"[TRACE]%s <==========\n", __func__);
 
@@ -3391,8 +3391,10 @@ halmac_cfg_txbf_88xx(struct halmac_adapter *halmac_adapter, u8 userid,
 		switch (bw) {
 		case HALMAC_BW_80:
 			temp42C |= BIT_R_TXBF0_80M;
+			/* fall through */
 		case HALMAC_BW_40:
 			temp42C |= BIT_R_TXBF0_40M;
+			/* fall through */
 		case HALMAC_BW_20:
 			temp42C |= BIT_R_TXBF0_20M;
 			break;
diff --git a/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_func_88xx.c b/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_func_88xx.c
index f33024e4d853..c4cb217d3d1f 100644
--- a/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_func_88xx.c
+++ b/drivers/staging/rtlwifi/halmac/halmac_88xx/halmac_func_88xx.c
@@ -276,17 +276,13 @@ halmac_dump_efuse_drv_88xx(struct halmac_adapter *halmac_adapter)
 
 	if (!halmac_adapter->hal_efuse_map) {
 		halmac_adapter->hal_efuse_map = kzalloc(efuse_size, GFP_KERNEL);
-		if (!halmac_adapter->hal_efuse_map) {
-			pr_err("[ERR]halmac allocate efuse map Fail!!\n");
+		if (!halmac_adapter->hal_efuse_map)
 			return HALMAC_RET_MALLOC_FAIL;
-		}
 	}
 
 	efuse_map = kzalloc(efuse_size, GFP_KERNEL);
-	if (!efuse_map) {
-		/* out of memory */
+	if (!efuse_map)
 		return HALMAC_RET_MALLOC_FAIL;
-	}
 
 	if (halmac_read_hw_efuse_88xx(halmac_adapter, 0, efuse_size,
 				      efuse_map) != HALMAC_RET_SUCCESS) {
@@ -325,10 +321,8 @@ halmac_dump_efuse_fw_88xx(struct halmac_adapter *halmac_adapter)
 	if (!halmac_adapter->hal_efuse_map) {
 		halmac_adapter->hal_efuse_map = kzalloc(
 			halmac_adapter->hw_config_info.efuse_size, GFP_KERNEL);
-		if (!halmac_adapter->hal_efuse_map) {
-			/* out of memory */
+		if (!halmac_adapter->hal_efuse_map)
 			return HALMAC_RET_MALLOC_FAIL;
-		}
 	}
 
 	if (!halmac_adapter->hal_efuse_map_valid) {
@@ -537,10 +531,8 @@ halmac_read_logical_efuse_map_88xx(struct halmac_adapter *halmac_adapter,
 
 	if (!halmac_adapter->hal_efuse_map_valid) {
 		efuse_map = kzalloc(efuse_size, GFP_KERNEL);
-		if (!efuse_map) {
-			pr_err("[ERR]halmac allocate local efuse map Fail!!\n");
+		if (!efuse_map)
 			return HALMAC_RET_MALLOC_FAIL;
-		}
 
 		status = halmac_func_read_efuse_88xx(halmac_adapter, 0,
 						     efuse_size, efuse_map);
@@ -554,7 +546,6 @@ halmac_read_logical_efuse_map_88xx(struct halmac_adapter *halmac_adapter,
 			halmac_adapter->hal_efuse_map =
 				kzalloc(efuse_size, GFP_KERNEL);
 			if (!halmac_adapter->hal_efuse_map) {
-				pr_err("[ERR]halmac allocate efuse map Fail!!\n");
 				kfree(efuse_map);
 				return HALMAC_RET_MALLOC_FAIL;
 			}
@@ -592,10 +583,8 @@ halmac_func_write_logical_efuse_88xx(struct halmac_adapter *halmac_adapter,
 	driver_adapter = halmac_adapter->driver_adapter;
 
 	eeprom_map = kzalloc(eeprom_size, GFP_KERNEL);
-	if (!eeprom_map) {
-		/* out of memory */
+	if (!eeprom_map)
 		return HALMAC_RET_MALLOC_FAIL;
-	}
 	memset(eeprom_map, 0xFF, eeprom_size);
 
 	status = halmac_read_logical_efuse_map_88xx(halmac_adapter, eeprom_map);
@@ -687,10 +676,8 @@ halmac_func_pg_efuse_by_map_88xx(struct halmac_adapter *halmac_adapter,
 	enum halmac_ret_status status = HALMAC_RET_SUCCESS;
 
 	eeprom_mask_updated = kzalloc(eeprom_mask_size, GFP_KERNEL);
-	if (!eeprom_mask_updated) {
-		/* out of memory */
+	if (!eeprom_mask_updated)
 		return HALMAC_RET_MALLOC_FAIL;
-	}
 
 	status = halmac_update_eeprom_mask_88xx(halmac_adapter, pg_efuse_info,
 						eeprom_mask_updated);
@@ -743,12 +730,10 @@ halmac_update_eeprom_mask_88xx(struct halmac_adapter *halmac_adapter,
 	driver_adapter = halmac_adapter->driver_adapter;
 
 	eeprom_map = kzalloc(eeprom_size, GFP_KERNEL);
-	if (!eeprom_map) {
-		/* out of memory */
+	if (!eeprom_map)
 		return HALMAC_RET_MALLOC_FAIL;
-	}
-	memset(eeprom_map, 0xFF, eeprom_size);
 
+	memset(eeprom_map, 0xFF, eeprom_size);
 	memset(eeprom_mask_updated, 0x00, pg_efuse_info->efuse_mask_size);
 
 	status = halmac_read_logical_efuse_map_88xx(halmac_adapter, eeprom_map);
@@ -1036,7 +1021,7 @@ halmac_dlfw_to_mem_88xx(struct halmac_adapter *halmac_adapter, u8 *ram_code,
 		if (halmac_send_fwpkt_88xx(
 			    halmac_adapter, code_ptr + mem_offset,
 			    send_pkt_size) != HALMAC_RET_SUCCESS) {
-			pr_err("halmac_send_fwpkt_88xx fail!!");
+			pr_err("halmac_send_fwpkt_88xx fail!!\n");
 			return HALMAC_RET_DLFW_FAIL;
 		}
 
@@ -1046,7 +1031,7 @@ halmac_dlfw_to_mem_88xx(struct halmac_adapter *halmac_adapter, u8 *ram_code,
 				    halmac_adapter->hw_config_info.txdesc_size,
 			    dest + mem_offset, send_pkt_size,
 			    first_part) != HALMAC_RET_SUCCESS) {
-			pr_err("halmac_iddma_dlfw_88xx fail!!");
+			pr_err("halmac_iddma_dlfw_88xx fail!!\n");
 			return HALMAC_RET_DLFW_FAIL;
 		}
 
@@ -1057,7 +1042,7 @@ halmac_dlfw_to_mem_88xx(struct halmac_adapter *halmac_adapter, u8 *ram_code,
 
 	if (halmac_check_fw_chksum_88xx(halmac_adapter, dest) !=
 	    HALMAC_RET_SUCCESS) {
-		pr_err("halmac_check_fw_chksum_88xx fail!!");
+		pr_err("halmac_check_fw_chksum_88xx fail!!\n");
 		return HALMAC_RET_DLFW_FAIL;
 	}
 
@@ -1618,10 +1603,11 @@ halmac_send_h2c_set_pwr_mode_88xx(struct halmac_adapter *halmac_adapter,
 	void *driver_adapter = NULL;
 	enum halmac_ret_status status = HALMAC_RET_SUCCESS;
 
+	driver_adapter = halmac_adapter->driver_adapter;
+
 	HALMAC_RT_TRACE(driver_adapter, HALMAC_MSG_H2C, DBG_DMESG,
 			"%s!!\n", __func__);
 
-	driver_adapter = halmac_adapter->driver_adapter;
 	h2c_header = h2c_buff;
 	h2c_cmd = h2c_header + HALMAC_H2C_CMD_HDR_SIZE_88XX;
 
@@ -1713,10 +1699,11 @@ halmac_media_status_rpt_88xx(struct halmac_adapter *halmac_adapter, u8 op_mode,
 	void *driver_adapter = NULL;
 	enum halmac_ret_status status = HALMAC_RET_SUCCESS;
 
+	driver_adapter = halmac_adapter->driver_adapter;
+
 	HALMAC_RT_TRACE(driver_adapter, HALMAC_MSG_H2C, DBG_DMESG,
 			"halmac_send_h2c_set_pwr_mode_88xx!!\n");
 
-	driver_adapter = halmac_adapter->driver_adapter;
 	h2c_header = H2c_buff;
 	h2c_cmd = h2c_header + HALMAC_H2C_CMD_HDR_SIZE_88XX;
 
@@ -2143,10 +2130,11 @@ halmac_func_ctrl_ch_switch_88xx(struct halmac_adapter *halmac_adapter,
 	enum halmac_cmd_process_status *process_status =
 		&halmac_adapter->halmac_state.scan_state_set.process_status;
 
+	driver_adapter = halmac_adapter->driver_adapter;
+
 	HALMAC_RT_TRACE(driver_adapter, HALMAC_MSG_H2C, DBG_DMESG,
 			"halmac_ctrl_ch_switch!!\n");
 
-	driver_adapter = halmac_adapter->driver_adapter;
 	halmac_api = (struct halmac_api *)halmac_adapter->halmac_api;
 
 	if (halmac_transition_scan_state_88xx(
@@ -2276,15 +2264,13 @@ enum halmac_ret_status halmac_send_h2c_update_bcn_parse_info_88xx(
 {
 	u8 h2c_buff[HALMAC_H2C_CMD_SIZE_88XX] = {0};
 	u16 h2c_seq_mum = 0;
-	void *driver_adapter = NULL;
+	void *driver_adapter = halmac_adapter->driver_adapter;
 	struct halmac_h2c_header_info h2c_header_info;
 	enum halmac_ret_status status = HALMAC_RET_SUCCESS;
 
 	HALMAC_RT_TRACE(driver_adapter, HALMAC_MSG_H2C, DBG_DMESG,
 			"%s!!\n", __func__);
 
-	driver_adapter = halmac_adapter->driver_adapter;
-
 	UPDATE_BEACON_PARSING_INFO_SET_FUNC_EN(h2c_buff, bcn_ie_info->func_en);
 	UPDATE_BEACON_PARSING_INFO_SET_SIZE_TH(h2c_buff, bcn_ie_info->size_th);
 	UPDATE_BEACON_PARSING_INFO_SET_TIMEOUT(h2c_buff, bcn_ie_info->timeout);
@@ -2548,10 +2534,8 @@ halmac_parse_efuse_data_88xx(struct halmac_adapter *halmac_adapter, u8 *c2h_buf,
 		halmac_adapter->efuse_segment_size = segment_size;
 
 	eeprom_map = kzalloc(eeprom_size, GFP_KERNEL);
-	if (!eeprom_map) {
-		/* out of memory */
+	if (!eeprom_map)
 		return HALMAC_RET_MALLOC_FAIL;
-	}
 	memset(eeprom_map, 0xFF, eeprom_size);
 
 	spin_lock(&halmac_adapter->efuse_lock);
@@ -3354,10 +3338,8 @@ enum halmac_ret_status halmac_query_dump_logical_efuse_status_88xx(
 		*size = eeprom_size;
 
 		eeprom_map = kzalloc(eeprom_size, GFP_KERNEL);
-		if (!eeprom_map) {
-			/* out of memory */
+		if (!eeprom_map)
 			return HALMAC_RET_MALLOC_FAIL;
-		}
 		memset(eeprom_map, 0xFF, eeprom_size);
 
 		if (halmac_eeprom_parser_88xx(
@@ -3578,10 +3560,8 @@ halmac_verify_send_rsvd_page_88xx(struct halmac_adapter *halmac_adapter)
 
 	rsvd_buf = kzalloc(h2c_pkt_verify_size, GFP_KERNEL);
 
-	if (!rsvd_buf) {
-		/*pr_err("[ERR]rsvd buffer malloc fail!!\n");*/
+	if (!rsvd_buf)
 		return HALMAC_RET_MALLOC_FAIL;
-	}
 
 	memset(rsvd_buf, (u8)h2c_pkt_verify_payload, h2c_pkt_verify_size);
 
@@ -3598,7 +3578,6 @@ halmac_verify_send_rsvd_page_88xx(struct halmac_adapter *halmac_adapter)
 			    GFP_KERNEL);
 
 	if (!rsvd_page) {
-		pr_err("[ERR]rsvd page malloc fail!!\n");
 		kfree(rsvd_buf);
 		return HALMAC_RET_MALLOC_FAIL;
 	}
diff --git a/drivers/staging/rtlwifi/halmac/rtl_halmac.c b/drivers/staging/rtlwifi/halmac/rtl_halmac.c
index 6448a8bfc14b..66f0a6dfc52c 100644
--- a/drivers/staging/rtlwifi/halmac/rtl_halmac.c
+++ b/drivers/staging/rtlwifi/halmac/rtl_halmac.c
@@ -617,7 +617,7 @@ static int _send_general_info(struct rtl_priv *rtlpriv)
 		RT_TRACE(rtlpriv, COMP_HALMAC, DBG_WARNING,
 			 "%s: halmac_send_general_info() fail because fw not dl!\n",
 			 __func__);
-	/* fallthrough here */
+	/* fall through */
 	default:
 		return -1;
 	}
diff --git a/drivers/staging/rtlwifi/pci.c b/drivers/staging/rtlwifi/pci.c
index 4035b8835bd1..70a64a5f564a 100644
--- a/drivers/staging/rtlwifi/pci.c
+++ b/drivers/staging/rtlwifi/pci.c
@@ -649,7 +649,7 @@ static void _rtl_pci_tx_isr(struct ieee80211_hw *hw, int prio)
 				 prio, ring->idx,
 				 skb_queue_len(&ring->queue));
 
-			ieee80211_wake_queue(hw, skb_get_queue_mapping (skb));
+			ieee80211_wake_queue(hw, skb_get_queue_mapping(skb));
 		}
 tx_status_ok:
 		skb = NULL;
diff --git a/drivers/staging/rtlwifi/phydm/halphyrf_ce.c b/drivers/staging/rtlwifi/phydm/halphyrf_ce.c
index 684e383201d6..5986892e767e 100644
--- a/drivers/staging/rtlwifi/phydm/halphyrf_ce.c
+++ b/drivers/staging/rtlwifi/phydm/halphyrf_ce.c
@@ -798,7 +798,7 @@ void odm_txpowertracking_callback_thermal_meter(void *dm_void)
 
 		if (xtal_offset_eanble != 0 &&
 		    cali_info->txpowertrack_control &&
-		    (rtlefu->eeprom_thermalmeter != 0xff)) {
+		    rtlefu->eeprom_thermalmeter != 0xff) {
 			ODM_RT_TRACE(
 				dm, ODM_COMP_TX_PWR_TRACK,
 				"**********Enter Xtal Tracking**********\n");
diff --git a/drivers/staging/rtlwifi/phydm/phydm.c b/drivers/staging/rtlwifi/phydm/phydm.c
index 37888c3087a4..8b2a180cc13c 100644
--- a/drivers/staging/rtlwifi/phydm/phydm.c
+++ b/drivers/staging/rtlwifi/phydm/phydm.c
@@ -1338,7 +1338,7 @@ static void odm_update_power_training_state(struct phy_dm_struct *dm)
 		return;
 
 	/* First connect */
-	if ((dm->is_linked) && !dig_tab->is_media_connect_0) {
+	if (dm->is_linked && !dig_tab->is_media_connect_0) {
 		dm->PT_score = 0;
 		dm->is_change_state = true;
 		dm->phy_dbg_info.num_qry_phy_status_ofdm = 0;
@@ -1360,7 +1360,7 @@ static void odm_update_power_training_state(struct phy_dm_struct *dm)
 			     (u32)(dm->phy_dbg_info.num_qry_phy_status_cck);
 
 		if ((false_alm_cnt->cnt_cca_all > 31 && rx_pkt_cnt > 31) &&
-		    (false_alm_cnt->cnt_cca_all >= rx_pkt_cnt)) {
+		    false_alm_cnt->cnt_cca_all >= rx_pkt_cnt) {
 			if ((rx_pkt_cnt + (rx_pkt_cnt >> 1)) <=
 			    false_alm_cnt->cnt_cca_all)
 				score = 0;
@@ -1697,7 +1697,7 @@ static u8 phydm_calculate_fc(void *dm_void, u32 channel, u32 bw, u32 second_ch,
 
 		fc = 2412 + (channel - 1) * 5;
 
-		if (bw == 40 && (second_ch == PHYDM_ABOVE)) {
+		if (bw == 40 && second_ch == PHYDM_ABOVE) {
 			if (channel >= 10) {
 				ODM_RT_TRACE(
 					dm, ODM_COMP_API,
@@ -1774,7 +1774,7 @@ static u8 phydm_calculate_intf_distance(void *dm_void, u32 bw, u32 fc,
 		     "[f_l, fc, fh] = [ %d, %d, %d ], f_int = ((%d))\n", bw_low,
 		     fc, bw_up, f_interference);
 
-	if ((f_interference >= bw_low) && (f_interference <= bw_up)) {
+	if (f_interference >= bw_low && f_interference <= bw_up) {
 		int_distance = (fc >= f_interference) ? (fc - f_interference) :
 							(f_interference - fc);
 		tone_idx_tmp =
diff --git a/drivers/staging/rtlwifi/phydm/phydm_adaptivity.c b/drivers/staging/rtlwifi/phydm/phydm_adaptivity.c
index 4f9e267409f6..103a774f9c8f 100644
--- a/drivers/staging/rtlwifi/phydm/phydm_adaptivity.c
+++ b/drivers/staging/rtlwifi/phydm/phydm_adaptivity.c
@@ -762,7 +762,7 @@ void phydm_adaptivity(void *dm_void)
 		dm->rssi_min, adaptivity->adajust_igi_level,
 		dm->adaptivity_flag, dm->adaptivity_enable);
 
-	if (adaptivity->dynamic_link_adaptivity && (!dm->is_linked) &&
+	if (adaptivity->dynamic_link_adaptivity && !dm->is_linked &&
 	    !dm->adaptivity_enable) {
 		phydm_set_edcca_threshold(dm, 0x7f, 0x7f);
 		ODM_RT_TRACE(
@@ -773,7 +773,7 @@ void phydm_adaptivity(void *dm_void)
 
 	if (dm->support_ic_type &
 	    (ODM_IC_11AC_GAIN_IDX_EDCCA | ODM_IC_11N_GAIN_IDX_EDCCA)) {
-		if ((adaptivity->adajust_igi_level > IGI) &&
+		if (adaptivity->adajust_igi_level > IGI &&
 		    dm->adaptivity_enable)
 			diff = adaptivity->adajust_igi_level - IGI;
 
diff --git a/drivers/staging/rtlwifi/phydm/phydm_debug.c b/drivers/staging/rtlwifi/phydm/phydm_debug.c
index a5f90afdae9b..e18ba2cca2bd 100644
--- a/drivers/staging/rtlwifi/phydm/phydm_debug.c
+++ b/drivers/staging/rtlwifi/phydm/phydm_debug.c
@@ -29,6 +29,7 @@
 
 #include "mp_precomp.h"
 #include "phydm_precomp.h"
+#include <linux/kernel.h>
 
 bool phydm_api_set_txagc(struct phy_dm_struct *, u32, enum odm_rf_radio_path,
 			 u8, bool);
@@ -1441,9 +1442,9 @@ static void phydm_get_per_path_txagc(void *dm_void, u8 path, u32 *_used,
 	u32 out_len = *_out_len;
 
 	if (((dm->support_ic_type & (ODM_RTL8822B | ODM_RTL8197F)) &&
-	     (path <= ODM_RF_PATH_B)) ||
+	     path <= ODM_RF_PATH_B) ||
 	    ((dm->support_ic_type & (ODM_RTL8821C)) &&
-	     (path <= ODM_RF_PATH_A))) {
+	     path <= ODM_RF_PATH_A)) {
 		for (rate_idx = 0; rate_idx <= 0x53; rate_idx++) {
 			if (rate_idx == ODM_RATE1M)
 				PHYDM_SNPRINTF(output + used, out_len - used,
@@ -2107,8 +2108,7 @@ void phydm_cmd_parser(struct phy_dm_struct *dm, char input[][MAX_ARGV],
 
 	/* Parsing Cmd ID */
 	if (input_num) {
-		phydm_ary_size =
-			sizeof(phy_dm_ary) / sizeof(struct phydm_command);
+		phydm_ary_size = ARRAY_SIZE(phy_dm_ary);
 		for (i = 0; i < phydm_ary_size; i++) {
 			if (strcmp(phy_dm_ary[i].name, input[0]) == 0) {
 				id = phy_dm_ary[i].id;
@@ -2530,7 +2530,7 @@ void phydm_cmd_parser(struct phy_dm_struct *dm, char input[][MAX_ARGV],
 		}
 
 		/* NMH trigger */
-		if ((var1[0] <= 2) && (var1[0] != 0)) {
+		if (var1[0] <= 2 && var1[0] != 0) {
 			ccx_info->echo_NHM_en = true;
 			ccx_info->echo_IGI =
 				(u8)odm_get_bb_reg(dm, 0xC50, MASKBYTE0);
@@ -2808,7 +2808,7 @@ void phydm_fw_trace_handler(void *dm_void, u8 *cmd_buf, u8 cmd_len)
 	freg_num = (buf_0 & 0xf);
 	c2h_seq = (buf_0 & 0xf0) >> 4;
 
-	if ((c2h_seq != dm->pre_c2h_seq) && !dm->fw_buff_is_enpty) {
+	if (c2h_seq != dm->pre_c2h_seq && !dm->fw_buff_is_enpty) {
 		dm->fw_debug_trace[dm->c2h_cmd_start] = '\0';
 		ODM_RT_TRACE(dm, ODM_FW_DEBUG_TRACE,
 			     "[FW Dbg Queue Overflow] %s\n",
diff --git a/drivers/staging/rtlwifi/phydm/phydm_dig.c b/drivers/staging/rtlwifi/phydm/phydm_dig.c
index 31a4f3fcad19..f851ff12dc35 100644
--- a/drivers/staging/rtlwifi/phydm/phydm_dig.c
+++ b/drivers/staging/rtlwifi/phydm/phydm_dig.c
@@ -198,7 +198,7 @@ static u8 odm_forbidden_igi_check(void *dm_void, u8 dig_dynamic_min,
 		if ((fa_cnt->cnt_all >
 		     (fa_cnt->cnt_all_pre + (fa_cnt->cnt_all_pre >> 3) +
 		      (fa_cnt->cnt_all_pre >> 4))) &&
-		    (current_igi < dig_tab->pre_ig_value)) {
+		    current_igi < dig_tab->pre_ig_value) {
 			if (dig_tab->large_fa_hit != 3)
 				dig_tab->large_fa_hit++;
 
@@ -319,7 +319,7 @@ void odm_write_dig(void *dm_void, u8 current_igi)
 		     __func__, ODM_REG(IGI_A, dm), ODM_BIT(IGI, dm));
 
 	/* 1 Check initial gain by upper bound */
-	if ((!dig_tab->is_psd_in_progress) && dm->is_linked) {
+	if (!dig_tab->is_psd_in_progress && dm->is_linked) {
 		if (current_igi > dig_tab->rx_gain_range_max) {
 			ODM_RT_TRACE(
 				dm, ODM_COMP_DIG,
@@ -353,7 +353,7 @@ void odm_write_dig(void *dm_void, u8 current_igi)
 
 		/*Add by YuChen for USB IO too slow issue*/
 		if ((dm->support_ability & ODM_BB_ADAPTIVITY) &&
-		    (current_igi > dig_tab->cur_ig_value)) {
+		    current_igi > dig_tab->cur_ig_value) {
 			dig_tab->cur_ig_value = current_igi;
 			phydm_adaptivity(dm);
 		}
@@ -388,7 +388,7 @@ void odm_pause_dig(void *dm_void, enum phydm_pause_type pause_type,
 	ODM_RT_TRACE(dm, ODM_COMP_DIG, "%s()=========> level = %d\n", __func__,
 		     pause_level);
 
-	if ((dig_tab->pause_dig_level == 0) &&
+	if (dig_tab->pause_dig_level == 0 &&
 	    (!(dm->support_ability & ODM_BB_DIG) ||
 	     !(dm->support_ability & ODM_BB_FA_CNT))) {
 		ODM_RT_TRACE(
@@ -490,6 +490,8 @@ void odm_pause_dig(void *dm_void, enum phydm_pause_type pause_type,
 				break;
 		}
 
+		/* pin max_level to be >= 0 */
+		max_level = max_t(s8, 0, max_level);
 		/* write IGI of lower level */
 		odm_write_dig(dm, dig_tab->pause_dig_value[max_level]);
 		ODM_RT_TRACE(dm, ODM_COMP_DIG,
@@ -718,7 +720,7 @@ void odm_DIG(void *dm_void)
 		/* 4 Modify DIG upper bound for 92E, 8723A\B, 8821 & 8812 BT */
 		if ((dm->support_ic_type & (ODM_RTL8192E | ODM_RTL8723B |
 					    ODM_RTL8812 | ODM_RTL8821)) &&
-		    (dm->is_bt_limited_dig == 1)) {
+		    dm->is_bt_limited_dig == 1) {
 			offset = 10;
 			ODM_RT_TRACE(
 				dm, ODM_COMP_DIG,
@@ -817,8 +819,8 @@ void odm_DIG(void *dm_void)
 	if (dm->is_linked && !first_connect) {
 		ODM_RT_TRACE(dm, ODM_COMP_DIG, "Beacon Num (%d)\n",
 			     dm->phy_dbg_info.num_qry_beacon_pkt);
-		if ((dm->phy_dbg_info.num_qry_beacon_pkt < 5) &&
-		    (dm->bsta_state)) {
+		if (dm->phy_dbg_info.num_qry_beacon_pkt < 5 &&
+		    dm->bsta_state) {
 			dig_tab->rx_gain_range_min = 0x1c;
 			ODM_RT_TRACE(
 				dm, ODM_COMP_DIG,
@@ -880,9 +882,9 @@ void odm_DIG(void *dm_void)
 				current_igi = current_igi - 2;
 
 			/* 4 Abnormal # beacon case */
-			if ((dm->phy_dbg_info.num_qry_beacon_pkt < 5) &&
-			    (fa_cnt->cnt_all < DM_DIG_FA_TH1) &&
-			    (dm->bsta_state)) {
+			if (dm->phy_dbg_info.num_qry_beacon_pkt < 5 &&
+			    fa_cnt->cnt_all < DM_DIG_FA_TH1 &&
+			    dm->bsta_state) {
 				current_igi = dig_tab->rx_gain_range_min;
 				ODM_RT_TRACE(
 					dm, ODM_COMP_DIG,
@@ -1319,7 +1321,7 @@ void odm_pause_cck_packet_detection(void *dm_void,
 	ODM_RT_TRACE(dm, ODM_COMP_DIG, "%s()=========> level = %d\n", __func__,
 		     pause_level);
 
-	if ((dig_tab->pause_cckpd_level == 0) &&
+	if (dig_tab->pause_cckpd_level == 0 &&
 	    (!(dm->support_ability & ODM_BB_CCK_PD) ||
 	     !(dm->support_ability & ODM_BB_FA_CNT))) {
 		ODM_RT_TRACE(
diff --git a/drivers/staging/rtlwifi/phydm/phydm_interface.c b/drivers/staging/rtlwifi/phydm/phydm_interface.c
index 102576a46c04..2f9bf6708c54 100644
--- a/drivers/staging/rtlwifi/phydm/phydm_interface.c
+++ b/drivers/staging/rtlwifi/phydm/phydm_interface.c
@@ -179,29 +179,6 @@ void ODM_sleep_ms(u32 ms) { msleep(ms); }
 
 void ODM_sleep_us(u32 us) { usleep_range(us, us + 1); }
 
-void odm_set_timer(struct phy_dm_struct *dm, struct timer_list *timer,
-		   u32 ms_delay)
-{
-	mod_timer(timer, jiffies + msecs_to_jiffies(ms_delay));
-}
-
-void odm_initialize_timer(struct phy_dm_struct *dm, struct timer_list *timer,
-			  void *call_back_func, void *context,
-			  const char *sz_id)
-{
-	init_timer(timer);
-	timer->function = call_back_func;
-	timer->data = (unsigned long)dm;
-	/*mod_timer(timer, jiffies+RTL_MILISECONDS_TO_JIFFIES(10));	*/
-}
-
-void odm_cancel_timer(struct phy_dm_struct *dm, struct timer_list *timer)
-{
-	del_timer(timer);
-}
-
-void odm_release_timer(struct phy_dm_struct *dm, struct timer_list *timer) {}
-
 static u8 phydm_trans_h2c_id(struct phy_dm_struct *dm, u8 phydm_h2c_id)
 {
 	u8 platform_h2c_id = phydm_h2c_id;
diff --git a/drivers/staging/rtlwifi/phydm/phydm_interface.h b/drivers/staging/rtlwifi/phydm/phydm_interface.h
index d315c79c962a..53ba5585bf33 100644
--- a/drivers/staging/rtlwifi/phydm/phydm_interface.h
+++ b/drivers/staging/rtlwifi/phydm/phydm_interface.h
@@ -172,17 +172,6 @@ void ODM_sleep_ms(u32 ms);
 
 void ODM_sleep_us(u32 us);
 
-void odm_set_timer(struct phy_dm_struct *dm, struct timer_list *timer,
-		   u32 ms_delay);
-
-void odm_initialize_timer(struct phy_dm_struct *dm, struct timer_list *timer,
-			  void *call_back_func, void *context,
-			  const char *sz_id);
-
-void odm_cancel_timer(struct phy_dm_struct *dm, struct timer_list *timer);
-
-void odm_release_timer(struct phy_dm_struct *dm, struct timer_list *timer);
-
 /*
  * ODM FW relative API.
  */
diff --git a/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_bb.c b/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_bb.c
index 4e7946019fcb..29d19f2b300e 100644
--- a/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_bb.c
+++ b/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_bb.c
@@ -26,6 +26,7 @@
 /*Image2HeaderVersion: 3.2*/
 #include "../mp_precomp.h"
 #include "../phydm_precomp.h"
+#include <linux/kernel.h>
 
 static bool check_positive(struct phy_dm_struct *dm, const u32 condition1,
 			   const u32 condition2, const u32 condition3,
@@ -1350,7 +1351,6 @@ void odm_read_and_config_mp_8822b_agc_tab(struct phy_dm_struct *dm)
 	u32 i = 0;
 	u8 c_cond;
 	bool is_matched = true, is_skipped = false;
-	u32 array_len = sizeof(array_mp_8822b_agc_tab) / sizeof(u32);
 	u32 *array = array_mp_8822b_agc_tab;
 
 	u32 v1 = 0, v2 = 0, pre_v1 = 0, pre_v2 = 0;
@@ -1358,7 +1358,7 @@ void odm_read_and_config_mp_8822b_agc_tab(struct phy_dm_struct *dm)
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> %s\n", __func__);
 
-	for (; (i + 1) < array_len; i = i + 2) {
+	for (; (i + 1) < ARRAY_SIZE(array_mp_8822b_agc_tab); i = i + 2) {
 		v1 = array[i];
 		v2 = array[i + 1];
 
@@ -1843,7 +1843,6 @@ void odm_read_and_config_mp_8822b_phy_reg(struct phy_dm_struct *dm)
 	u32 i = 0;
 	u8 c_cond;
 	bool is_matched = true, is_skipped = false;
-	u32 array_len = sizeof(array_mp_8822b_phy_reg) / sizeof(u32);
 	u32 *array = array_mp_8822b_phy_reg;
 
 	u32 v1 = 0, v2 = 0, pre_v1 = 0, pre_v2 = 0;
@@ -1851,7 +1850,7 @@ void odm_read_and_config_mp_8822b_phy_reg(struct phy_dm_struct *dm)
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> %s\n", __func__);
 
-	for (; (i + 1) < array_len; i = i + 2) {
+	for (; (i + 1) < ARRAY_SIZE(array_mp_8822b_phy_reg); i = i + 2) {
 		v1 = array[i];
 		v2 = array[i + 1];
 
@@ -1947,7 +1946,6 @@ static u32 array_mp_8822b_phy_reg_pg[] = {
 void odm_read_and_config_mp_8822b_phy_reg_pg(struct phy_dm_struct *dm)
 {
 	u32 i = 0;
-	u32 array_len = sizeof(array_mp_8822b_phy_reg_pg) / sizeof(u32);
 	u32 *array = array_mp_8822b_phy_reg_pg;
 
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
@@ -1956,7 +1954,7 @@ void odm_read_and_config_mp_8822b_phy_reg_pg(struct phy_dm_struct *dm)
 	dm->phy_reg_pg_version = 1;
 	dm->phy_reg_pg_value_type = PHY_REG_PG_EXACT_VALUE;
 
-	for (i = 0; i < array_len; i += 6) {
+	for (i = 0; i < ARRAY_SIZE(array_mp_8822b_phy_reg_pg); i += 6) {
 		u32 v1 = array[i];
 		u32 v2 = array[i + 1];
 		u32 v3 = array[i + 2];
diff --git a/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_mac.c b/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_mac.c
index 1a9daed2e609..70924f002541 100644
--- a/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_mac.c
+++ b/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_mac.c
@@ -26,6 +26,7 @@
 /*Image2HeaderVersion: 3.2*/
 #include "../mp_precomp.h"
 #include "../phydm_precomp.h"
+#include <linux/kernel.h>
 
 static bool check_positive(struct phy_dm_struct *dm, const u32 condition1,
 			   const u32 condition2, const u32 condition3,
@@ -173,7 +174,6 @@ void odm_read_and_config_mp_8822b_mac_reg(struct phy_dm_struct *dm)
 	u32 i = 0;
 	u8 c_cond;
 	bool is_matched = true, is_skipped = false;
-	u32 array_len = sizeof(array_mp_8822b_mac_reg) / sizeof(u32);
 	u32 *array = array_mp_8822b_mac_reg;
 
 	u32 v1 = 0, v2 = 0, pre_v1 = 0, pre_v2 = 0;
@@ -181,7 +181,7 @@ void odm_read_and_config_mp_8822b_mac_reg(struct phy_dm_struct *dm)
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> %s\n", __func__);
 
-	for (; (i + 1) < array_len; i = i + 2) {
+	for (; (i + 1) < ARRAY_SIZE(array_mp_8822b_mac_reg); i = i + 2) {
 		v1 = array[i];
 		v2 = array[i + 1];
 
diff --git a/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_rf.c b/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_rf.c
index 84cdc0644207..0ff3a9a712d6 100644
--- a/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_rf.c
+++ b/drivers/staging/rtlwifi/phydm/rtl8822b/halhwimg8822b_rf.c
@@ -26,6 +26,7 @@
 /*Image2HeaderVersion: 3.2*/
 #include "../mp_precomp.h"
 #include "../phydm_precomp.h"
+#include <linux/kernel.h>
 
 static bool check_positive(struct phy_dm_struct *dm, const u32 condition1,
 			   const u32 condition2, const u32 condition3,
@@ -1346,7 +1347,6 @@ void odm_read_and_config_mp_8822b_radioa(struct phy_dm_struct *dm)
 	u32 i = 0;
 	u8 c_cond;
 	bool is_matched = true, is_skipped = false;
-	u32 array_len = sizeof(array_mp_8822b_radioa) / sizeof(u32);
 	u32 *array = array_mp_8822b_radioa;
 
 	u32 v1 = 0, v2 = 0, pre_v1 = 0, pre_v2 = 0;
@@ -1354,7 +1354,7 @@ void odm_read_and_config_mp_8822b_radioa(struct phy_dm_struct *dm)
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> %s\n", __func__);
 
-	for (; (i + 1) < array_len; i = i + 2) {
+	for (; (i + 1) < ARRAY_SIZE(array_mp_8822b_radioa); i = i + 2) {
 		v1 = array[i];
 		v2 = array[i + 1];
 
@@ -2506,7 +2506,6 @@ void odm_read_and_config_mp_8822b_radiob(struct phy_dm_struct *dm)
 	u32 i = 0;
 	u8 c_cond;
 	bool is_matched = true, is_skipped = false;
-	u32 array_len = sizeof(array_mp_8822b_radiob) / sizeof(u32);
 	u32 *array = array_mp_8822b_radiob;
 
 	u32 v1 = 0, v2 = 0, pre_v1 = 0, pre_v2 = 0;
@@ -2514,7 +2513,7 @@ void odm_read_and_config_mp_8822b_radiob(struct phy_dm_struct *dm)
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> %s\n", __func__);
 
-	for (; (i + 1) < array_len; i = i + 2) {
+	for (; (i + 1) < ARRAY_SIZE(array_mp_8822b_radiob); i = i + 2) {
 		v1 = array[i];
 		v2 = array[i + 1];
 
@@ -4239,13 +4238,12 @@ static const char *const array_mp_8822b_txpwr_lmt[] = {
 void odm_read_and_config_mp_8822b_txpwr_lmt(struct phy_dm_struct *dm)
 {
 	u32 i = 0;
-	u32 array_len = sizeof(array_mp_8822b_txpwr_lmt) / sizeof(u8 *);
 	u8 **array = (u8 **)array_mp_8822b_txpwr_lmt;
 
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> %s\n", __func__);
 
-	for (i = 0; i < array_len; i += 7) {
+	for (i = 0; i < ARRAY_SIZE(array_mp_8822b_txpwr_lmt); i += 7) {
 		u8 *regulation = array[i];
 		u8 *band = array[i + 1];
 		u8 *bandwidth = array[i + 2];
@@ -4723,13 +4721,12 @@ static const char *const array_mp_8822b_txpwr_lmt_type5[] = {
 void odm_read_and_config_mp_8822b_txpwr_lmt_type5(struct phy_dm_struct *dm)
 {
 	u32 i = 0;
-	u32 array_len = sizeof(array_mp_8822b_txpwr_lmt_type5) / sizeof(u8 *);
 	u8 **array = (u8 **)array_mp_8822b_txpwr_lmt_type5;
 
 	ODM_RT_TRACE(dm, ODM_COMP_INIT,
 		     "===> odm_read_and_config_mp_8822b_txpwr_lmt_type5\n");
 
-	for (i = 0; i < array_len; i += 7) {
+	for (i = 0; i < ARRAY_SIZE(array_mp_8822b_txpwr_lmt_type5); i += 7) {
 		u8 *regulation = array[i];
 		u8 *band = array[i + 1];
 		u8 *bandwidth = array[i + 2];
diff --git a/drivers/staging/rtlwifi/ps.c b/drivers/staging/rtlwifi/ps.c
index 9172cee45f74..7856fc5d10bd 100644
--- a/drivers/staging/rtlwifi/ps.c
+++ b/drivers/staging/rtlwifi/ps.c
@@ -61,7 +61,7 @@ bool rtl_ps_enable_nic(struct ieee80211_hw *hw)
 	rtlpriv->cfg->ops->enable_interrupt(hw);
 
 	/*<enable timer> */
-	rtl_watch_dog_timer_callback((unsigned long)hw);
+	rtl_watch_dog_timer_callback(&rtlpriv->works.watchdog_timer);
 
 	return true;
 }
diff --git a/drivers/staging/rtlwifi/rc.c b/drivers/staging/rtlwifi/rc.c
index 65de0c7b5a67..c835be91f398 100644
--- a/drivers/staging/rtlwifi/rc.c
+++ b/drivers/staging/rtlwifi/rc.c
@@ -125,8 +125,8 @@ static void _rtl_rc_rate_set_series(struct rtl_priv *rtlpriv,
 	}
 	rate->count = tries;
 	rate->idx = rix >= 0x00 ? rix : 0x00;
-	if (((rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE) ||
-	     (rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8822BE)) &&
+	if ((rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8812AE ||
+	     rtlpriv->rtlhal.hw_type == HARDWARE_TYPE_RTL8822BE) &&
 	    wireless_mode == WIRELESS_MODE_AC_5G)
 		rate->idx |= 0x10;/*2NSS for 8812AE, 8822BE*/
 
@@ -138,7 +138,7 @@ static void _rtl_rc_rate_set_series(struct rtl_priv *rtlpriv,
 			if (sta && (sta->ht_cap.cap &
 				    IEEE80211_HT_CAP_SUP_WIDTH_20_40))
 				rate->flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
-			if (sta && (sta->vht_cap.vht_supported))
+			if (sta && sta->vht_cap.vht_supported)
 				rate->flags |= IEEE80211_TX_RC_80_MHZ_WIDTH;
 		} else {
 			if (mac->bw_80)
@@ -150,8 +150,8 @@ static void _rtl_rc_rate_set_series(struct rtl_priv *rtlpriv,
 		if (sgi_20 || sgi_40 || sgi_80)
 			rate->flags |= IEEE80211_TX_RC_SHORT_GI;
 		if (sta && sta->ht_cap.ht_supported &&
-		    ((wireless_mode == WIRELESS_MODE_N_5G) ||
-		     (wireless_mode == WIRELESS_MODE_N_24G)))
+		    (wireless_mode == WIRELESS_MODE_N_5G ||
+		     wireless_mode == WIRELESS_MODE_N_24G))
 			rate->flags |= IEEE80211_TX_RC_MCS;
 		if (sta && sta->vht_cap.vht_supported &&
 		    (wireless_mode == WIRELESS_MODE_AC_5G ||
@@ -232,7 +232,7 @@ static void rtl_tx_status(void *ppriv,
 	if (sta) {
 		/* Check if aggregation has to be enabled for this tid */
 		sta_entry = (struct rtl_sta_info *)sta->drv_priv;
-		if ((sta->ht_cap.ht_supported) &&
+		if (sta->ht_cap.ht_supported &&
 		    !(skb->protocol == cpu_to_be16(ETH_P_PAE))) {
 			if (ieee80211_is_data_qos(fc)) {
 				u8 tid = rtl_get_tid(skb);
@@ -281,10 +281,8 @@ static void *rtl_rate_alloc_sta(void *ppriv,
 	struct rtl_rate_priv *rate_priv;
 
 	rate_priv = kzalloc(sizeof(*rate_priv), gfp);
-	if (!rate_priv) {
-		pr_err("Unable to allocate private rc structure\n");
+	if (!rate_priv)
 		return NULL;
-	}
 
 	rtlpriv->rate_priv = rate_priv;
 
diff --git a/drivers/staging/rtlwifi/rtl8822be/fw.c b/drivers/staging/rtlwifi/rtl8822be/fw.c
index 8e24da16752c..f45487122517 100644
--- a/drivers/staging/rtlwifi/rtl8822be/fw.c
+++ b/drivers/staging/rtlwifi/rtl8822be/fw.c
@@ -330,7 +330,7 @@ void rtl8822be_set_fw_pwrmode_cmd(struct ieee80211_hw *hw, u8 mode)
 			byte5 = btc_ops->btc_get_lps_val(rtlpriv);
 			power_state = btc_ops->btc_get_rpwm_val(rtlpriv);
 
-			if ((rlbm == 2) && (byte5 & BIT(4))) {
+			if (rlbm == 2 && (byte5 & BIT(4))) {
 				/* Keep awake interval to 1 to prevent from
 				 * decreasing coex performance
 				 */
@@ -419,7 +419,7 @@ static bool _rtl8822be_send_bcn_or_cmd_packet(struct ieee80211_hw *hw,
 		dma_addr = rtlpriv->cfg->ops->get_desc(
 				hw, (u8 *)pbd_desc, true, HW_DESC_TXBUFF_ADDR);
 
-		pci_unmap_single(rtlpci->pdev, dma_addr, skb->len,
+		pci_unmap_single(rtlpci->pdev, dma_addr, pskb->len,
 				 PCI_DMA_TODEVICE);
 		kfree_skb(pskb);
 
@@ -766,9 +766,10 @@ void rtl8822be_set_fw_rsvdpagepkt(struct ieee80211_hw *hw, bool b_dl_finished)
 		rtl8822be_fill_h2c_cmd(hw, H2C_8822B_RSVDPAGE,
 				       sizeof(u1_rsvd_page_loc),
 				       u1_rsvd_page_loc);
-	} else
+	} else {
 		RT_TRACE(rtlpriv, COMP_ERR, DBG_WARNING,
 			 "Set RSVD page location to Fw FAIL!!!!!!.\n");
+	}
 }
 
 /* Should check FW support p2p or not. */
@@ -834,7 +835,7 @@ void rtl8822be_set_p2p_ps_offload_cmd(struct ieee80211_hw *hw, u8 p2p_ps_state)
 			rtl_write_dword(rtlpriv, 0x5EC,
 					p2pinfo->noa_count_type[i]);
 		}
-		if ((p2pinfo->opp_ps == 1) || (p2pinfo->noa_num > 0)) {
+		if (p2pinfo->opp_ps == 1 || p2pinfo->noa_num > 0) {
 			/* rst p2p circuit */
 			rtl_write_byte(rtlpriv, REG_DUAL_TSF_RST_8822B, BIT(4));
 			p2p_ps_offload->offload_en = 1;
diff --git a/drivers/staging/rtlwifi/rtl8822be/led.c b/drivers/staging/rtlwifi/rtl8822be/led.c
index f4b5af8ab116..0054c892dce6 100644
--- a/drivers/staging/rtlwifi/rtl8822be/led.c
+++ b/drivers/staging/rtlwifi/rtl8822be/led.c
@@ -114,7 +114,7 @@ void rtl8822be_led_control(struct ieee80211_hw *hw, enum led_ctl_mode ledaction)
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	struct rtl_ps_ctl *ppsc = rtl_psc(rtl_priv(hw));
 
-	if ((ppsc->rfoff_reason > RF_CHANGE_BY_PS) &&
+	if (ppsc->rfoff_reason > RF_CHANGE_BY_PS &&
 	    (ledaction == LED_CTL_TX || ledaction == LED_CTL_RX ||
 	     ledaction == LED_CTL_SITE_SURVEY || ledaction == LED_CTL_LINK ||
 	     ledaction == LED_CTL_NO_LINK ||
diff --git a/drivers/staging/rtlwifi/rtl8822be/phy.c b/drivers/staging/rtlwifi/rtl8822be/phy.c
index 4cba2adc3165..ef37ae98c803 100644
--- a/drivers/staging/rtlwifi/rtl8822be/phy.c
+++ b/drivers/staging/rtlwifi/rtl8822be/phy.c
@@ -890,7 +890,7 @@ bool rtl8822be_load_txpower_by_rate(struct ieee80211_hw *hw)
 	rtstatus = rtlpriv->phydm.ops->phydm_load_txpower_by_rate(rtlpriv);
 
 	if (!rtstatus) {
-		pr_err("BB_PG Reg Fail!!");
+		pr_err("BB_PG Reg Fail!!\n");
 		return false;
 	}
 
@@ -915,7 +915,7 @@ bool rtl8822be_load_txpower_limit(struct ieee80211_hw *hw)
 	rtstatus = rtlpriv->phydm.ops->phydm_load_txpower_limit(rtlpriv);
 
 	if (!rtstatus) {
-		pr_err("RF TxPwr Limit Fail!!");
+		pr_err("RF TxPwr Limit Fail!!\n");
 		return false;
 	}
 
@@ -1562,9 +1562,10 @@ static char _rtl8822be_phy_get_txpower_limit(struct ieee80211_hw *hw, u8 band,
 						      [channel_index]
 						      [rate_section]
 						      [channel_index][rf_path];
-	} else
+	} else {
 		RT_TRACE(rtlpriv, COMP_INIT, DBG_LOUD,
 			 "No power limit table of the specified band\n");
+	}
 
 	return power_limit;
 }
@@ -1609,9 +1610,9 @@ u8 rtl8822be_get_txpower_index(struct ieee80211_hw *hw, u8 path, u8 rate,
 	char limit;
 	char powerdiff_byrate = 0;
 
-	if (((rtlhal->current_bandtype == BAND_ON_2_4G) &&
+	if ((rtlhal->current_bandtype == BAND_ON_2_4G &&
 	     (channel > 14 || channel < 1)) ||
-	    ((rtlhal->current_bandtype == BAND_ON_5G) && (channel <= 14))) {
+	    (rtlhal->current_bandtype == BAND_ON_5G && channel <= 14)) {
 		index = 0;
 		RT_TRACE(rtlpriv, COMP_POWER_TRACKING, DBG_LOUD,
 			 "Illegal channel!!\n");
@@ -1755,9 +1756,9 @@ static void _rtl8822be_phy_set_txpower_index(struct ieee80211_hw *hw,
 	static u32 index;
 
 	/*
-	* For 8822B, phydm api use 4 bytes txagc value
-	* driver must combine every four 1 byte to one 4 byte and send to phydm
-	*/
+	 * For 8822B, phydm api use 4 bytes txagc value driver must
+	 * combine every four 1 byte to one 4 byte and send to phydm
+	 */
 	shift = rate & 0x03;
 	index |= ((u32)power_index << (shift * 8));
 
@@ -1912,8 +1913,8 @@ static u8 _rtl8822be_phy_get_pri_ch_id(struct rtl_priv *rtlpriv)
 
 	if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_80) {
 		/* primary channel is at lower subband of 80MHz & 40MHz */
-		if ((mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER) &&
-		    (mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER)) {
+		if (mac->cur_40_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER &&
+		    mac->cur_80_prime_sc == HAL_PRIME_CHNL_OFFSET_LOWER) {
 			pri_ch_idx = VHT_DATA_SC_20_LOWEST_OF_80MHZ;
 		/* primary channel is at
 		 * lower subband of 80MHz & upper subband of 40MHz
@@ -2141,7 +2142,7 @@ static bool _rtl8822be_phy_set_rf_power_state(struct ieee80211_hw *hw,
 
 	switch (rfpwr_state) {
 	case ERFON:
-		if ((ppsc->rfpwr_state == ERFOFF) &&
+		if (ppsc->rfpwr_state == ERFOFF &&
 		    RT_IN_PS_LEVEL(ppsc, RT_RF_OFF_LEVL_HALT_NIC)) {
 			bool rtstatus = false;
 			u32 initialize_count = 0;
diff --git a/drivers/staging/rtlwifi/rtl8822be/trx.c b/drivers/staging/rtlwifi/rtl8822be/trx.c
index 38f80e48a399..87e15e419252 100644
--- a/drivers/staging/rtlwifi/rtl8822be/trx.c
+++ b/drivers/staging/rtlwifi/rtl8822be/trx.c
@@ -165,7 +165,7 @@ static bool rtl8822be_get_rxdesc_is_ht(struct ieee80211_hw *hw, u8 *pdesc)
 
 	RT_TRACE(rtlpriv, COMP_RXDESC, DBG_LOUD, "rx_rate=0x%02x.\n", rx_rate);
 
-	if ((rx_rate >= DESC_RATEMCS0) && (rx_rate <= DESC_RATEMCS15))
+	if (rx_rate >= DESC_RATEMCS0 && rx_rate <= DESC_RATEMCS15)
 		return true;
 	else
 		return false;
@@ -193,8 +193,8 @@ static u8 rtl8822be_get_rx_vht_nss(struct ieee80211_hw *hw, u8 *pdesc)
 
 	rx_rate = GET_RX_DESC_RX_RATE(pdesc);
 
-	if ((rx_rate >= DESC_RATEVHT1SS_MCS0) &&
-	    (rx_rate <= DESC_RATEVHT1SS_MCS9))
+	if (rx_rate >= DESC_RATEVHT1SS_MCS0 &&
+	    rx_rate <= DESC_RATEVHT1SS_MCS9)
 		vht_nss = 1;
 	else if ((rx_rate >= DESC_RATEVHT2SS_MCS0) &&
 		 (rx_rate <= DESC_RATEVHT2SS_MCS9))
@@ -510,8 +510,8 @@ static u8 rtl8822be_bw_mapping(struct ieee80211_hw *hw,
 		else
 			bw_setting_of_desc = 0;
 	} else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
-		if ((ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) ||
-		    (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80))
+		if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40 ||
+		    ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_80)
 			bw_setting_of_desc = 1;
 		else
 			bw_setting_of_desc = 0;
@@ -546,10 +546,10 @@ static u8 rtl8822be_sc_mapping(struct ieee80211_hw *hw,
 					 "%s: Not Correct Primary40MHz Setting\n",
 					 __func__);
 		} else {
-			if ((mac->cur_40_prime_sc ==
-			     HAL_PRIME_CHNL_OFFSET_LOWER) &&
-			    (mac->cur_80_prime_sc ==
-			     HAL_PRIME_CHNL_OFFSET_LOWER))
+			if (mac->cur_40_prime_sc ==
+			     HAL_PRIME_CHNL_OFFSET_LOWER &&
+			    mac->cur_80_prime_sc ==
+			     HAL_PRIME_CHNL_OFFSET_LOWER)
 				sc_setting_of_desc =
 					VHT_DATA_SC_20_LOWEST_OF_80MHZ;
 			else if ((mac->cur_40_prime_sc ==
@@ -571,9 +571,9 @@ static u8 rtl8822be_sc_mapping(struct ieee80211_hw *hw,
 				sc_setting_of_desc =
 					VHT_DATA_SC_20_UPPERST_OF_80MHZ;
 			else
-				RT_TRACE(
-					rtlpriv, COMP_SEND, DBG_LOUD,
-					"rtl8822be_sc_mapping: Not Correct Primary40MHz Setting\n");
+				RT_TRACE(rtlpriv, COMP_SEND, DBG_LOUD,
+					 "%s: Not Correct Primary40MHz Setting\n",
+					 __func__);
 		}
 	} else if (rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40) {
 		if (ptcb_desc->packet_bw == HT_CHANNEL_WIDTH_20_40) {
diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c
index 4033a2cf7ac9..d548bc695f9e 100644
--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -4125,12 +4125,6 @@ RTY_SEND_CMD:
 					rtsx_trace(chip);
 					return STATUS_FAIL;
 				}
-
-			} else if (rsp_type == SD_RSP_TYPE_R0) {
-				if ((ptr[3] & 0x1E) != 0x03) {
-					rtsx_trace(chip);
-					return STATUS_FAIL;
-				}
 			}
 		}
 	}
diff --git a/drivers/staging/rts5208/trace.c b/drivers/staging/rts5208/trace.c
index 1bddbdf3454b..c878e75293f7 100644
--- a/drivers/staging/rts5208/trace.c
+++ b/drivers/staging/rts5208/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/string.h>
 
diff --git a/drivers/staging/skein/Makefile b/drivers/staging/skein/Makefile
index b7f947fb98f0..86b7966d694e 100644
--- a/drivers/staging/skein/Makefile
+++ b/drivers/staging/skein/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the skein secure hash algorithm
 #
diff --git a/drivers/staging/skein/skein_iv.h b/drivers/staging/skein/skein_iv.h
index 509d464c65a3..916f029da726 100644
--- a/drivers/staging/skein/skein_iv.h
+++ b/drivers/staging/skein/skein_iv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SKEIN_IV_H_
 #define _SKEIN_IV_H_
 
diff --git a/drivers/staging/skein/threefish_api.c b/drivers/staging/skein/threefish_api.c
index 2b649abb78c7..e69cefa6b16a 100644
--- a/drivers/staging/skein/threefish_api.c
+++ b/drivers/staging/skein/threefish_api.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include "threefish_api.h"
 
diff --git a/drivers/staging/skein/threefish_api.h b/drivers/staging/skein/threefish_api.h
index 615e467579ee..21539c3cc7a0 100644
--- a/drivers/staging/skein/threefish_api.h
+++ b/drivers/staging/skein/threefish_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef THREEFISHAPI_H
 #define THREEFISHAPI_H
diff --git a/drivers/staging/skein/threefish_block.c b/drivers/staging/skein/threefish_block.c
index 50640656c10d..87f055890544 100644
--- a/drivers/staging/skein/threefish_block.c
+++ b/drivers/staging/skein/threefish_block.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include "threefish_api.h"
 
diff --git a/drivers/staging/sm750fb/ddk750_chip.c b/drivers/staging/sm750fb/ddk750_chip.c
index 4754f7a20684..313b99104398 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/sizes.h>
 
diff --git a/drivers/staging/sm750fb/ddk750_chip.h b/drivers/staging/sm750fb/ddk750_chip.h
index 2c7a9b9a7c8a..aee82fcaf669 100644
--- a/drivers/staging/sm750fb/ddk750_chip.h
+++ b/drivers/staging/sm750fb/ddk750_chip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_CHIP_H__
 #define DDK750_CHIP_H__
 #define DEFAULT_INPUT_CLOCK 14318181 /* Default reference clock */
@@ -17,7 +18,7 @@ static inline u32 peek32(u32 addr)
 	return readl(addr + mmio750);
 }
 
-static inline void poke32(u32 data, u32 addr)
+static inline void poke32(u32 addr, u32 data)
 {
 	writel(data, addr + mmio750);
 }
diff --git a/drivers/staging/sm750fb/ddk750_display.c b/drivers/staging/sm750fb/ddk750_display.c
index 9b116ed6ecc7..c6fd90191530 100644
--- a/drivers/staging/sm750fb/ddk750_display.c
+++ b/drivers/staging/sm750fb/ddk750_display.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "ddk750_reg.h"
 #include "ddk750_chip.h"
 #include "ddk750_display.h"
diff --git a/drivers/staging/sm750fb/ddk750_display.h b/drivers/staging/sm750fb/ddk750_display.h
index 609bf742efff..523bbf33521c 100644
--- a/drivers/staging/sm750fb/ddk750_display.h
+++ b/drivers/staging/sm750fb/ddk750_display.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_DISPLAY_H__
 #define DDK750_DISPLAY_H__
 
diff --git a/drivers/staging/sm750fb/ddk750_dvi.c b/drivers/staging/sm750fb/ddk750_dvi.c
index 87a199d6cdaf..b20d16198c17 100644
--- a/drivers/staging/sm750fb/ddk750_dvi.c
+++ b/drivers/staging/sm750fb/ddk750_dvi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define USE_DVICHIP
 #ifdef USE_DVICHIP
 #include "ddk750_chip.h"
@@ -10,7 +11,7 @@
  * function API. Please set the function pointer to NULL whenever the function
  * is not supported.
  */
-static dvi_ctrl_device_t g_dcftSupportedDviController[] = {
+static struct dvi_ctrl_device g_dcftSupportedDviController[] = {
 #ifdef DVI_CTRL_SII164
 	{
 		.pfnInit = sii164InitChip,
@@ -40,7 +41,7 @@ int dviInit(unsigned char edgeSelect,
 	    unsigned char pllFilterEnable,
 	    unsigned char pllFilterValue)
 {
-	dvi_ctrl_device_t *pCurrentDviCtrl;
+	struct dvi_ctrl_device *pCurrentDviCtrl;
 
 	pCurrentDviCtrl = g_dcftSupportedDviController;
 	if (pCurrentDviCtrl->pfnInit) {
diff --git a/drivers/staging/sm750fb/ddk750_dvi.h b/drivers/staging/sm750fb/ddk750_dvi.h
index 4a8394561f76..1c7a565b617a 100644
--- a/drivers/staging/sm750fb/ddk750_dvi.h
+++ b/drivers/staging/sm750fb/ddk750_dvi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_DVI_H__
 #define DDK750_DVI_H__
 
@@ -25,7 +26,7 @@ typedef unsigned char (*PFN_DVICTRL_CHECKINTERRUPT)(void);
 typedef void (*PFN_DVICTRL_CLEARINTERRUPT)(void);
 
 /* Structure to hold all the function pointer to the DVI Controller. */
-typedef struct _dvi_ctrl_device_t {
+struct dvi_ctrl_device {
 	PFN_DVICTRL_INIT		pfnInit;
 	PFN_DVICTRL_RESETCHIP		pfnResetChip;
 	PFN_DVICTRL_GETCHIPSTRING	pfnGetChipString;
@@ -36,7 +37,7 @@ typedef struct _dvi_ctrl_device_t {
 	PFN_DVICTRL_ISCONNECTED		pfnIsConnected;
 	PFN_DVICTRL_CHECKINTERRUPT	pfnCheckInterrupt;
 	PFN_DVICTRL_CLEARINTERRUPT	pfnClearInterrupt;
-} dvi_ctrl_device_t;
+};
 
 #define DVI_CTRL_SII164
 
diff --git a/drivers/staging/sm750fb/ddk750_hwi2c.c b/drivers/staging/sm750fb/ddk750_hwi2c.c
index ec556a978a98..8482689b665b 100644
--- a/drivers/staging/sm750fb/ddk750_hwi2c.c
+++ b/drivers/staging/sm750fb/ddk750_hwi2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define USE_HW_I2C
 #ifdef USE_HW_I2C
 #include "ddk750_chip.h"
diff --git a/drivers/staging/sm750fb/ddk750_hwi2c.h b/drivers/staging/sm750fb/ddk750_hwi2c.h
index 46e22dce2570..337c6493ca61 100644
--- a/drivers/staging/sm750fb/ddk750_hwi2c.h
+++ b/drivers/staging/sm750fb/ddk750_hwi2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_HWI2C_H__
 #define DDK750_HWI2C_H__
 
diff --git a/drivers/staging/sm750fb/ddk750_mode.c b/drivers/staging/sm750fb/ddk750_mode.c
index bb673e18999b..2cdd87b78e58 100644
--- a/drivers/staging/sm750fb/ddk750_mode.c
+++ b/drivers/staging/sm750fb/ddk750_mode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include "ddk750_reg.h"
 #include "ddk750_mode.h"
diff --git a/drivers/staging/sm750fb/ddk750_mode.h b/drivers/staging/sm750fb/ddk750_mode.h
index d5eae36d85cb..259a9d6a4eb2 100644
--- a/drivers/staging/sm750fb/ddk750_mode.h
+++ b/drivers/staging/sm750fb/ddk750_mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_MODE_H__
 #define DDK750_MODE_H__
 
diff --git a/drivers/staging/sm750fb/ddk750_power.c b/drivers/staging/sm750fb/ddk750_power.c
index 222ae1a06feb..12834f78eef7 100644
--- a/drivers/staging/sm750fb/ddk750_power.c
+++ b/drivers/staging/sm750fb/ddk750_power.c
@@ -1,8 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "ddk750_chip.h"
 #include "ddk750_reg.h"
 #include "ddk750_power.h"
 
-void ddk750_set_dpms(DPMS_t state)
+void ddk750_set_dpms(enum dpms state)
 {
 	unsigned int value;
 
diff --git a/drivers/staging/sm750fb/ddk750_power.h b/drivers/staging/sm750fb/ddk750_power.h
index 44c4fc587e96..e48c74ecbbd1 100644
--- a/drivers/staging/sm750fb/ddk750_power.h
+++ b/drivers/staging/sm750fb/ddk750_power.h
@@ -1,20 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_POWER_H__
 #define DDK750_POWER_H__
 
-typedef enum _DPMS_t {
+enum dpms {
 	crtDPMS_ON = 0x0,
 	crtDPMS_STANDBY = 0x1,
 	crtDPMS_SUSPEND = 0x2,
 	crtDPMS_OFF = 0x3,
-}
-DPMS_t;
+};
 
 #define setDAC(off) {							\
 	poke32(MISC_CTRL,						\
 	       (peek32(MISC_CTRL) & ~MISC_CTRL_DAC_POWER_OFF) | (off)); \
 }
 
-void ddk750_set_dpms(DPMS_t state);
+void ddk750_set_dpms(enum dpms state);
 void sm750_set_power_mode(unsigned int powerMode);
 void sm750_set_current_gate(unsigned int gate);
 
diff --git a/drivers/staging/sm750fb/ddk750_reg.h b/drivers/staging/sm750fb/ddk750_reg.h
index f9b989b7a152..fe412ead72e5 100644
--- a/drivers/staging/sm750fb/ddk750_reg.h
+++ b/drivers/staging/sm750fb/ddk750_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_REG_H__
 #define DDK750_REG_H__
 
diff --git a/drivers/staging/sm750fb/ddk750_sii164.c b/drivers/staging/sm750fb/ddk750_sii164.c
index 0431833de781..c787a74c4f9c 100644
--- a/drivers/staging/sm750fb/ddk750_sii164.c
+++ b/drivers/staging/sm750fb/ddk750_sii164.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define USE_DVICHIP
 #ifdef USE_DVICHIP
 
@@ -296,7 +297,8 @@ void sii164SetPower(unsigned char powerUp)
  *  sii164SelectHotPlugDetectionMode
  *      This function selects the mode of the hot plug detection.
  */
-static void sii164SelectHotPlugDetectionMode(sii164_hot_plug_mode_t hotPlugMode)
+static
+void sii164SelectHotPlugDetectionMode(enum sii164_hot_plug_mode hotPlugMode)
 {
 	unsigned char detectReg;
 
diff --git a/drivers/staging/sm750fb/ddk750_sii164.h b/drivers/staging/sm750fb/ddk750_sii164.h
index 6968cf532f16..2e9a88cd6af3 100644
--- a/drivers/staging/sm750fb/ddk750_sii164.h
+++ b/drivers/staging/sm750fb/ddk750_sii164.h
@@ -1,15 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DDK750_SII164_H__
 #define DDK750_SII164_H__
 
 #define USE_DVICHIP
 
 /* Hot Plug detection mode structure */
-typedef enum _sii164_hot_plug_mode_t {
+enum sii164_hot_plug_mode {
 	SII164_HOTPLUG_DISABLE = 0,         /* Disable Hot Plug output bit (always high). */
 	SII164_HOTPLUG_USE_MDI,             /* Use Monitor Detect Interrupt bit. */
 	SII164_HOTPLUG_USE_RSEN,            /* Use Receiver Sense detect bit. */
 	SII164_HOTPLUG_USE_HTPLG            /* Use Hot Plug detect bit. */
-} sii164_hot_plug_mode_t;
+};
 
 
 /* Silicon Image SiI164 chip prototype */
diff --git a/drivers/staging/sm750fb/sm750.h b/drivers/staging/sm750fb/sm750.h
index 4386122799b2..ce90adcb449d 100644
--- a/drivers/staging/sm750fb/sm750.h
+++ b/drivers/staging/sm750fb/sm750.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LYNXDRV_H_
 #define LYNXDRV_H_
 
diff --git a/drivers/staging/sm750fb/sm750_accel.c b/drivers/staging/sm750fb/sm750_accel.c
index 4b720cfa05de..1035e91e7cd3 100644
--- a/drivers/staging/sm750fb/sm750_accel.c
+++ b/drivers/staging/sm750fb/sm750_accel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/staging/sm750fb/sm750_accel.h b/drivers/staging/sm750fb/sm750_accel.h
index 4b0ff8feb9a0..c4f42002a50f 100644
--- a/drivers/staging/sm750fb/sm750_accel.h
+++ b/drivers/staging/sm750fb/sm750_accel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ACCEL_H__
 #define ACCEL_H__
 
diff --git a/drivers/staging/sm750fb/sm750_cursor.c b/drivers/staging/sm750fb/sm750_cursor.c
index aa47a16ac75c..bbbef27cb329 100644
--- a/drivers/staging/sm750fb/sm750_cursor.c
+++ b/drivers/staging/sm750fb/sm750_cursor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -18,8 +19,6 @@
 #include "sm750.h"
 #include "sm750_cursor.h"
 
-
-
 #define poke32(addr, data) \
 writel((data), cursor->mmio + (addr))
 
@@ -45,7 +44,6 @@ writel((data), cursor->mmio + (addr))
 #define HWC_COLOR_3                         0xC
 #define HWC_COLOR_3_RGB565_MASK             0xffff
 
-
 /* hw_cursor_xxx works for voyager,718 and 750 */
 void sm750_hw_cursor_enable(struct lynx_cursor *cursor)
 {
@@ -134,7 +132,6 @@ void sm750_hw_cursor_setData(struct lynx_cursor *cursor, u16 rop,
 	}
 }
 
-
 void sm750_hw_cursor_setData2(struct lynx_cursor *cursor, u16 rop,
 			      const u8 *pcol, const u8 *pmsk)
 {
diff --git a/drivers/staging/sm750fb/sm750_cursor.h b/drivers/staging/sm750fb/sm750_cursor.h
index c7b86ae235b4..16ac07eb58d6 100644
--- a/drivers/staging/sm750fb/sm750_cursor.h
+++ b/drivers/staging/sm750fb/sm750_cursor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LYNX_CURSOR_H__
 #define LYNX_CURSOR_H__
 
diff --git a/drivers/staging/sm750fb/sm750_hw.c b/drivers/staging/sm750fb/sm750_hw.c
index baf1bbdc92ff..ffd114a6d09b 100644
--- a/drivers/staging/sm750fb/sm750_hw.c
+++ b/drivers/staging/sm750fb/sm750_hw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/staging/speakup/Makefile b/drivers/staging/speakup/Makefile
index c864ea69c40d..5befb4933b85 100644
--- a/drivers/staging/speakup/Makefile
+++ b/drivers/staging/speakup/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SPEAKUP_SYNTH_ACNTSA) += speakup_acntsa.o
 obj-$(CONFIG_SPEAKUP_SYNTH_ACNTPC) += speakup_acntpc.o
 obj-$(CONFIG_SPEAKUP_SYNTH_APOLLO) += speakup_apollo.o
diff --git a/drivers/staging/speakup/buffers.c b/drivers/staging/speakup/buffers.c
index f459e4004bfa..6137fa83c609 100644
--- a/drivers/staging/speakup/buffers.c
+++ b/drivers/staging/speakup/buffers.c
@@ -27,7 +27,7 @@ void speakup_start_ttys(void)
 	for (i = 0; i < MAX_NR_CONSOLES; i++) {
 		if (speakup_console[i] && speakup_console[i]->tty_stopped)
 			continue;
-		if ((vc_cons[i].d) && (vc_cons[i].d->port.tty))
+		if (vc_cons[i].d && vc_cons[i].d->port.tty)
 			start_tty(vc_cons[i].d->port.tty);
 	}
 }
@@ -38,7 +38,7 @@ static void speakup_stop_ttys(void)
 	int i;
 
 	for (i = 0; i < MAX_NR_CONSOLES; i++)
-		if ((vc_cons[i].d && (vc_cons[i].d->port.tty)))
+		if (vc_cons[i].d && vc_cons[i].d->port.tty)
 			stop_tty(vc_cons[i].d->port.tty);
 }
 
diff --git a/drivers/staging/speakup/devsynth.c b/drivers/staging/speakup/devsynth.c
index 58abd1d85105..d920256328c3 100644
--- a/drivers/staging/speakup/devsynth.c
+++ b/drivers/staging/speakup/devsynth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/miscdevice.h>	/* for misc_register, and SYNTH_MINOR */
 #include <linux/types.h>
diff --git a/drivers/staging/speakup/i18n.c b/drivers/staging/speakup/i18n.c
index 7809867f5d28..cea8707653f5 100644
--- a/drivers/staging/speakup/i18n.c
+++ b/drivers/staging/speakup/i18n.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Internationalization implementation.  Includes definitions of English
  * string arrays, and the i18n pointer.
  */
diff --git a/drivers/staging/speakup/i18n.h b/drivers/staging/speakup/i18n.h
index 8fcce566653f..2ec6e659d02b 100644
--- a/drivers/staging/speakup/i18n.h
+++ b/drivers/staging/speakup/i18n.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef I18N_H
 #define I18N_H
 /* Internationalization declarations */
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 67956e24779c..16497202473f 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -447,7 +447,7 @@ static void speak_char(u16 ch)
 
 	cp = spk_characters[ch];
 	if (!cp) {
-		pr_info("speak_char: cp == NULL!\n");
+		pr_info("%s: cp == NULL!\n", __func__);
 		return;
 	}
 	if (IS_CHAR(ch, B_CAP)) {
@@ -1165,7 +1165,7 @@ static const int NUM_CTL_LABELS = (MSG_CTL_END - MSG_CTL_START + 1);
 
 static void read_all_doc(struct vc_data *vc);
 static void cursor_done(u_long data);
-static DEFINE_TIMER(cursor_timer, cursor_done, 0, 0);
+static DEFINE_TIMER(cursor_timer, cursor_done);
 
 static void do_handle_shift(struct vc_data *vc, u_char value, char up_flag)
 {
@@ -1376,6 +1376,8 @@ static void reset_highlight_buffers(struct vc_data *);
 
 static int read_all_key;
 
+static int in_keyboard_notifier;
+
 static void start_read_all_timer(struct vc_data *vc, int command);
 
 enum {
@@ -1408,7 +1410,10 @@ static void read_all_doc(struct vc_data *vc)
 	cursor_track = read_all_mode;
 	spk_reset_index_count(0);
 	if (get_sentence_buf(vc, 0) == -1) {
-		kbd_fakekey2(vc, RA_DOWN_ARROW);
+		del_timer(&cursor_timer);
+		if (!in_keyboard_notifier)
+			speakup_fake_down_arrow();
+		start_read_all_timer(vc, RA_DOWN_ARROW);
 	} else {
 		say_sentence_num(0, 0);
 		synth_insert_next_index(0);
@@ -2096,7 +2101,7 @@ speakup_key(struct vc_data *vc, int shift_state, int keycode, u_short keysym,
 	u_char shift_info, offset;
 	int ret = 0;
 
-	if (synth == NULL)
+	if (!synth)
 		return 0;
 
 	spin_lock_irqsave(&speakup_info.spinlock, flags);
@@ -2212,8 +2217,10 @@ static int keyboard_notifier_call(struct notifier_block *nb,
 	int ret = NOTIFY_OK;
 	static int keycode;	/* to hold the current keycode */
 
+	in_keyboard_notifier = 1;
+
 	if (vc->vc_mode == KD_GRAPHICS)
-		return ret;
+		goto out;
 
 	/*
 	 * First, determine whether we are handling a fake keypress on
@@ -2225,7 +2232,7 @@ static int keyboard_notifier_call(struct notifier_block *nb,
 	 */
 
 	if (speakup_fake_key_pressed())
-		return ret;
+		goto out;
 
 	switch (code) {
 	case KBD_KEYCODE:
@@ -2266,6 +2273,8 @@ static int keyboard_notifier_call(struct notifier_block *nb,
 			break;
 		}
 	}
+out:
+	in_keyboard_notifier = 0;
 	return ret;
 }
 
diff --git a/drivers/staging/speakup/selection.c b/drivers/staging/speakup/selection.c
index 08f68fc2864e..66061b5c3427 100644
--- a/drivers/staging/speakup/selection.c
+++ b/drivers/staging/speakup/selection.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h> /* for kmalloc */
 #include <linux/consolemap.h>
 #include <linux/interrupt.h>
diff --git a/drivers/staging/speakup/serialio.h b/drivers/staging/speakup/serialio.h
index 89de6fff9cb2..aa691e4a6916 100644
--- a/drivers/staging/speakup/serialio.h
+++ b/drivers/staging/speakup/serialio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPEAKUP_SERIAL_H
 #define _SPEAKUP_SERIAL_H
 
diff --git a/drivers/staging/speakup/speakup.h b/drivers/staging/speakup/speakup.h
index a654334c98b9..3d8bda8b9620 100644
--- a/drivers/staging/speakup/speakup.h
+++ b/drivers/staging/speakup/speakup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SPEAKUP_H
 #define _SPEAKUP_H
 
diff --git a/drivers/staging/speakup/speakup_acnt.h b/drivers/staging/speakup/speakup_acnt.h
index 107ec1155f51..cffa938ae580 100644
--- a/drivers/staging/speakup/speakup_acnt.h
+++ b/drivers/staging/speakup/speakup_acnt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* speakup_acntpc.h - header file for speakups Accent-PC driver. */
 
 #define SYNTH_IO_EXTENT	0x02
diff --git a/drivers/staging/speakup/speakup_acntsa.c b/drivers/staging/speakup/speakup_acntsa.c
index 0e10404e2e8c..43315849b7b6 100644
--- a/drivers/staging/speakup/speakup_acntsa.c
+++ b/drivers/staging/speakup/speakup_acntsa.c
@@ -136,7 +136,7 @@ static int synth_probe(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_acntsa.ser, int, 0444);
-module_param_named(dev, synth_acntsa.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_acntsa.dev_name, charp, 0444);
 module_param_named(start, synth_acntsa.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_apollo.c b/drivers/staging/speakup/speakup_apollo.c
index 2edb56c8a559..dcf0c3b59fdd 100644
--- a/drivers/staging/speakup/speakup_apollo.c
+++ b/drivers/staging/speakup/speakup_apollo.c
@@ -200,7 +200,7 @@ static void do_catch_up(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_apollo.ser, int, 0444);
-module_param_named(dev, synth_apollo.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_apollo.dev_name, charp, 0444);
 module_param_named(start, synth_apollo.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_audptr.c b/drivers/staging/speakup/speakup_audptr.c
index 8ae826eba71c..45b5721441ba 100644
--- a/drivers/staging/speakup/speakup_audptr.c
+++ b/drivers/staging/speakup/speakup_audptr.c
@@ -163,7 +163,7 @@ static int synth_probe(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_audptr.ser, int, 0444);
-module_param_named(dev, synth_audptr.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_audptr.dev_name, charp, 0444);
 module_param_named(start, synth_audptr.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_bns.c b/drivers/staging/speakup/speakup_bns.c
index 60bcf0df8123..402b0fbfb94d 100644
--- a/drivers/staging/speakup/speakup_bns.c
+++ b/drivers/staging/speakup/speakup_bns.c
@@ -120,7 +120,7 @@ static struct spk_synth synth_bns = {
 };
 
 module_param_named(ser, synth_bns.ser, int, 0444);
-module_param_named(dev, synth_bns.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_bns.dev_name, charp, 0444);
 module_param_named(start, synth_bns.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_decext.c b/drivers/staging/speakup/speakup_decext.c
index 95f4b2116d0c..4310c2c276c4 100644
--- a/drivers/staging/speakup/speakup_decext.c
+++ b/drivers/staging/speakup/speakup_decext.c
@@ -227,7 +227,7 @@ static void synth_flush(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_decext.ser, int, 0444);
-module_param_named(dev, synth_decext.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_decext.dev_name, charp, 0444);
 module_param_named(start, synth_decext.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_dectlk.c b/drivers/staging/speakup/speakup_dectlk.c
index f06995480022..5d6a861c9b1e 100644
--- a/drivers/staging/speakup/speakup_dectlk.c
+++ b/drivers/staging/speakup/speakup_dectlk.c
@@ -299,7 +299,7 @@ static void synth_flush(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_dectlk.ser, int, 0444);
-module_param_named(dev, synth_dectlk.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_dectlk.dev_name, charp, 0444);
 module_param_named(start, synth_dectlk.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_dtlk.h b/drivers/staging/speakup/speakup_dtlk.h
index 51ac0f2fcded..9c378b58066e 100644
--- a/drivers/staging/speakup/speakup_dtlk.h
+++ b/drivers/staging/speakup/speakup_dtlk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* speakup_dtlk.h - header file for speakups DoubleTalk driver. */
 
 #define SYNTH_IO_EXTENT	0x02
diff --git a/drivers/staging/speakup/speakup_dummy.c b/drivers/staging/speakup/speakup_dummy.c
index 851953d5eefb..ea3b2911cab9 100644
--- a/drivers/staging/speakup/speakup_dummy.c
+++ b/drivers/staging/speakup/speakup_dummy.c
@@ -122,7 +122,7 @@ static struct spk_synth synth_dummy = {
 };
 
 module_param_named(ser, synth_dummy.ser, int, 0444);
-module_param_named(dev, synth_dummy.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_dummy.dev_name, charp, 0444);
 module_param_named(start, synth_dummy.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_ltlk.c b/drivers/staging/speakup/speakup_ltlk.c
index 423795f88f53..95efaab73813 100644
--- a/drivers/staging/speakup/speakup_ltlk.c
+++ b/drivers/staging/speakup/speakup_ltlk.c
@@ -167,7 +167,7 @@ static int synth_probe(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_ltlk.ser, int, 0444);
-module_param_named(dev, synth_ltlk.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_ltlk.dev_name, charp, 0444);
 module_param_named(start, synth_ltlk.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_spkout.c b/drivers/staging/speakup/speakup_spkout.c
index 9ca21edc42ce..1037aa0d085a 100644
--- a/drivers/staging/speakup/speakup_spkout.c
+++ b/drivers/staging/speakup/speakup_spkout.c
@@ -131,7 +131,7 @@ static void synth_flush(struct spk_synth *synth)
 }
 
 module_param_named(ser, synth_spkout.ser, int, 0444);
-module_param_named(dev, synth_spkout.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_spkout.dev_name, charp, 0444);
 module_param_named(start, synth_spkout.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakup_txprt.c b/drivers/staging/speakup/speakup_txprt.c
index 831ee404e7a1..e160034e4a68 100644
--- a/drivers/staging/speakup/speakup_txprt.c
+++ b/drivers/staging/speakup/speakup_txprt.c
@@ -119,7 +119,7 @@ static struct spk_synth synth_txprt = {
 };
 
 module_param_named(ser, synth_txprt.ser, int, 0444);
-module_param_named(dev, synth_txprt.dev_name, charp, S_IRUGO);
+module_param_named(dev, synth_txprt.dev_name, charp, 0444);
 module_param_named(start, synth_txprt.startup, short, 0444);
 
 MODULE_PARM_DESC(ser, "Set the serial port for the synthesizer (0-based).");
diff --git a/drivers/staging/speakup/speakupmap.h b/drivers/staging/speakup/speakupmap.h
index f1c0dd3b2c3a..c60d7339b89a 100644
--- a/drivers/staging/speakup/speakupmap.h
+++ b/drivers/staging/speakup/speakupmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 	119, 62, 6,
 	0, 16, 20, 17, 32, 48, 0,
 	2, 0, 78, 0, 0, 0, 0,
diff --git a/drivers/staging/speakup/spk_ttyio.c b/drivers/staging/speakup/spk_ttyio.c
index 4d7d8f2f66ea..513cebbd161c 100644
--- a/drivers/staging/speakup/spk_ttyio.c
+++ b/drivers/staging/speakup/spk_ttyio.c
@@ -51,10 +51,8 @@ static int spk_ttyio_ldisc_open(struct tty_struct *tty)
 	speakup_tty = tty;
 
 	ldisc_data = kmalloc(sizeof(struct spk_ldisc_data), GFP_KERNEL);
-	if (!ldisc_data) {
-		pr_err("speakup: Failed to allocate ldisc_data.\n");
+	if (!ldisc_data)
 		return -ENOMEM;
-	}
 
 	sema_init(&ldisc_data->sem, 0);
 	ldisc_data->buf_free = true;
@@ -90,7 +88,8 @@ static int spk_ttyio_receive_buf2(struct tty_struct *tty,
 		return 0;
 
 	/* Make sure the consumer has read buf before we have seen
-	 * buf_free == true and overwrite buf */
+	 * buf_free == true and overwrite buf
+	 */
 	mb();
 
 	ldisc_data->buf = cp[0];
@@ -276,7 +275,8 @@ static unsigned char ttyio_in(int timeout)
 
 	rv = ldisc_data->buf;
 	/* Make sure we have read buf before we set buf_free to let
-	 * the producer overwrite it */
+	 * the producer overwrite it
+	 */
 	mb();
 	ldisc_data->buf_free = true;
 	/* Let TTY push more characters */
diff --git a/drivers/staging/speakup/spk_types.h b/drivers/staging/speakup/spk_types.h
index 22f657d45e46..c50de6035a9a 100644
--- a/drivers/staging/speakup/spk_types.h
+++ b/drivers/staging/speakup/spk_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SPEAKUP_TYPES_H
 #define SPEAKUP_TYPES_H
 
diff --git a/drivers/staging/speakup/synth.c b/drivers/staging/speakup/synth.c
index a1ca68c76579..6ddd3fc3f08d 100644
--- a/drivers/staging/speakup/synth.c
+++ b/drivers/staging/speakup/synth.c
@@ -158,7 +158,7 @@ static void thread_wake_up(u_long data)
 	wake_up_interruptible_all(&speakup_event);
 }
 
-static DEFINE_TIMER(thread_timer, thread_wake_up, 0, 0);
+static DEFINE_TIMER(thread_timer, thread_wake_up);
 
 void synth_start(void)
 {
diff --git a/drivers/staging/typec/Kconfig b/drivers/staging/typec/Kconfig
index 37a0781b0d0c..5359f556d203 100644
--- a/drivers/staging/typec/Kconfig
+++ b/drivers/staging/typec/Kconfig
@@ -1,13 +1,5 @@
 menu "USB Power Delivery and Type-C drivers"
 
-config TYPEC_TCPM
-	tristate "USB Type-C Port Controller Manager"
-	depends on USB
-	select TYPEC
-	help
-	  The Type-C Port Controller Manager provides a USB PD and USB Type-C
-	  state machine for use with Type-C Port Controllers.
-
 if TYPEC_TCPM
 
 config TYPEC_TCPCI
@@ -17,8 +9,6 @@ config TYPEC_TCPCI
 	help
 	  Type-C Port Controller driver for TCPCI-compliant controller.
 
-source "drivers/staging/typec/fusb302/Kconfig"
-
 endif
 
 endmenu
diff --git a/drivers/staging/typec/Makefile b/drivers/staging/typec/Makefile
index 30a7e29cbc9e..53d649abcb53 100644
--- a/drivers/staging/typec/Makefile
+++ b/drivers/staging/typec/Makefile
@@ -1,3 +1 @@
-obj-$(CONFIG_TYPEC_TCPM)	+= tcpm.o
 obj-$(CONFIG_TYPEC_TCPCI)	+= tcpci.o
-obj-y				+= fusb302/
diff --git a/drivers/staging/typec/TODO b/drivers/staging/typec/TODO
index bc1f97a2d1bf..53fe2f726c88 100644
--- a/drivers/staging/typec/TODO
+++ b/drivers/staging/typec/TODO
@@ -1,13 +1,3 @@
-tcpm:
-- Add documentation (at the very least for the API to low level drivers)
-- Split PD code into separate file
-- Check if it makes sense to use tracepoints instead of debugfs for debug logs
-- Implement Alternate Mode handling
-- Address "#if 0" code if not addressed with the above
-- Validate all comments marked with "XXX"; either address or remove comments
-- Add support for USB PD 3.0. While not mandatory, at least fast role swap
-  as well as authentication support would be very desirable.
-
 tcpci:
 - Test with real hardware
 
diff --git a/drivers/staging/typec/fusb302/TODO b/drivers/staging/typec/fusb302/TODO
deleted file mode 100644
index 19b466eb585d..000000000000
--- a/drivers/staging/typec/fusb302/TODO
+++ /dev/null
@@ -1,10 +0,0 @@
-fusb302:
-- Find a better logging scheme, at least not having the same debugging/logging
-  code replicated here and in tcpm
-- Find a non-hacky way to coordinate between PM and I2C access
-- Documentation? The FUSB302 datasheet provides information on the chip to help
-  understand the code. But it may still be helpful to have a documentation.
-- We may want to replace the  "fcs,max-snk-microvolt", "fcs,max-snk-microamp",
-  "fcs,max-snk-microwatt" and "fcs,operating-snk-microwatt" device(tree)
-  properties with properties which are part of a generic type-c controller
-  devicetree binding.
diff --git a/drivers/staging/typec/tcpci.c b/drivers/staging/typec/tcpci.c
index df72d8b01e73..b6abaf79ef0b 100644
--- a/drivers/staging/typec/tcpci.c
+++ b/drivers/staging/typec/tcpci.c
@@ -20,11 +20,11 @@
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/regmap.h>
+#include <linux/usb/pd.h>
+#include <linux/usb/tcpm.h>
 #include <linux/usb/typec.h>
 
-#include "pd.h"
 #include "tcpci.h"
-#include "tcpm.h"
 
 #define PD_RETRY_COUNT 3
 
@@ -139,6 +139,7 @@ static enum typec_cc_status tcpci_to_typec_cc(unsigned int cc, bool sink)
 	case 0x3:
 		if (sink)
 			return TYPEC_CC_RP_3_0;
+		/* fall through */
 	case 0x0:
 	default:
 		return TYPEC_CC_OPEN;
diff --git a/drivers/staging/unisys/MAINTAINERS b/drivers/staging/unisys/MAINTAINERS
index 1f0425bf3583..aaddc619c329 100644
--- a/drivers/staging/unisys/MAINTAINERS
+++ b/drivers/staging/unisys/MAINTAINERS
@@ -1,5 +1,5 @@
 Unisys s-Par drivers
 M:	David Kershner <sparmaintainer@unisys.com>
 S:	Maintained
-F:	Documentation/s-Par/overview.txt
+F:	drivers/staging/unisys/Documentation/overview.txt
 F:	drivers/staging/unisys/
diff --git a/drivers/staging/unisys/include/iochannel.h b/drivers/staging/unisys/include/iochannel.h
index a70760f48566..5cd407ca2251 100644
--- a/drivers/staging/unisys/include/iochannel.h
+++ b/drivers/staging/unisys/include/iochannel.h
@@ -44,7 +44,7 @@
 #include <linux/uuid.h>
 #include <linux/skbuff.h>
 
-#include "channel.h"
+#include "visorchannel.h"
 
 /*
  * Must increment these whenever you insert or delete fields within this channel
@@ -348,10 +348,9 @@ struct sense_data {
  *		    the start of the NETWORK LAYER HEADER.
  *
  * NOTE:
- * The full packet is described in frags but the ethernet header is
- * separately kept in ethhdr so that uisnic doesn't have "MAP" the
- * guest memory to get to the header. uisnic needs ethhdr to
- * determine how to route the packet.
+ * The full packet is described in frags but the ethernet header is separately
+ * kept in ethhdr so that uisnic doesn't have "MAP" the guest memory to get to
+ * the header. uisnic needs ethhdr to determine how to route the packet.
  */
 struct net_pkt_xmt {
 	int len;
diff --git a/drivers/staging/unisys/include/visorbus.h b/drivers/staging/unisys/include/visorbus.h
index e4ee38c3dbe4..1a0986ba3d24 100644
--- a/drivers/staging/unisys/include/visorbus.h
+++ b/drivers/staging/unisys/include/visorbus.h
@@ -28,87 +28,20 @@
 #define __VISORBUS_H__
 
 #include <linux/device.h>
-#include <linux/module.h>
-#include <linux/slab.h>
 
-#include "channel.h"
-
-struct visor_device;
-extern struct bus_type visorbus_type;
-
-typedef void (*visorbus_state_complete_func) (struct visor_device *dev,
-					      int status);
+#include "visorchannel.h"
 
 struct visorchipset_state {
 	u32 created:1;
 	u32 attached:1;
 	u32 configured:1;
 	u32 running:1;
-	/* Add new fields above. */
-	/* Remaining bits in this 32-bit word are unused. */
-};
-
-/*
- * This struct describes a specific Supervisor channel, by providing its
- * GUID, name, and sizes.
- */
-struct visor_channeltype_descriptor {
-	const guid_t guid;
-	const char *name;
+	/* Remaining bits in this 32-bit word are reserved. */
 };
 
 /**
- * struct visor_driver - Information provided by each visor driver when it
- * registers with the visorbus driver.
- * @name:		Name of the visor driver.
- * @owner:		The module owner.
- * @channel_types:	Types of channels handled by this driver, ending with
- *			a zero GUID. Our specialized BUS.match() method knows
- *			about this list, and uses it to determine whether this
- *			driver will in fact handle a new device that it has
- *			detected.
- * @probe:		Called when a new device comes online, by our probe()
- *			function specified by driver.probe() (triggered
- *			ultimately by some call to driver_register(),
- *			bus_add_driver(), or driver_attach()).
- * @remove:		Called when a new device is removed, by our remove()
- *			function specified by driver.remove() (triggered
- *			ultimately by some call to device_release_driver()).
- * @channel_interrupt:	Called periodically, whenever there is a possiblity
- *			that "something interesting" may have happened to the
- *			channel.
- * @pause:		Called to initiate a change of the device's state.  If
- *			the return valu`e is < 0, there was an error and the
- *			state transition will NOT occur.  If the return value
- *			is >= 0, then the state transition was INITIATED
- *			successfully, and complete_func() will be called (or
- *			was just called) with the final status when either the
- *			state transition fails or completes successfully.
- * @resume:		Behaves similar to pause.
- * @driver:		Private reference to the device driver. For use by bus
- *			driver only.
- */
-struct visor_driver {
-	const char *name;
-	struct module *owner;
-	struct visor_channeltype_descriptor *channel_types;
-	int (*probe)(struct visor_device *dev);
-	void (*remove)(struct visor_device *dev);
-	void (*channel_interrupt)(struct visor_device *dev);
-	int (*pause)(struct visor_device *dev,
-		     visorbus_state_complete_func complete_func);
-	int (*resume)(struct visor_device *dev,
-		      visorbus_state_complete_func complete_func);
-
-	/* These fields are for private use by the bus driver only. */
-	struct device_driver driver;
-};
-
-#define to_visor_driver(x) (container_of(x, struct visor_driver, driver))
-
-/**
  * struct visor_device - A device type for things "plugged" into the visorbus
- * bus
+ *                       bus
  * @visorchannel:		Points to the channel that the device is
  *				associated with.
  * @channel_type_guid:		Identifies the channel type to the bus driver.
@@ -139,7 +72,6 @@ struct visor_driver {
  *				same across all visor_devices in the current
  *				guest. Private use by bus driver only.
  */
-
 struct visor_device {
 	struct visorchannel *visorchannel;
 	guid_t channel_type_guid;
@@ -161,11 +93,74 @@ struct visor_device {
 	void *vbus_hdr_info;
 	guid_t partition_guid;
 	struct dentry *debugfs_dir;
-	struct dentry *debugfs_client_bus_info;
+	struct dentry *debugfs_bus_info;
 };
 
 #define to_visor_device(x) container_of(x, struct visor_device, device)
 
+typedef void (*visorbus_state_complete_func) (struct visor_device *dev,
+					      int status);
+
+/*
+ * This struct describes a specific visor channel, by providing its GUID, name,
+ * and sizes.
+ */
+struct visor_channeltype_descriptor {
+	const guid_t guid;
+	const char *name;
+	u64 min_bytes;
+	u32 version;
+};
+
+/**
+ * struct visor_driver - Information provided by each visor driver when it
+ *                       registers with the visorbus driver
+ * @name:		Name of the visor driver.
+ * @owner:		The module owner.
+ * @channel_types:	Types of channels handled by this driver, ending with
+ *			a zero GUID. Our specialized BUS.match() method knows
+ *			about this list, and uses it to determine whether this
+ *			driver will in fact handle a new device that it has
+ *			detected.
+ * @probe:		Called when a new device comes online, by our probe()
+ *			function specified by driver.probe() (triggered
+ *			ultimately by some call to driver_register(),
+ *			bus_add_driver(), or driver_attach()).
+ * @remove:		Called when a new device is removed, by our remove()
+ *			function specified by driver.remove() (triggered
+ *			ultimately by some call to device_release_driver()).
+ * @channel_interrupt:	Called periodically, whenever there is a possiblity
+ *			that "something interesting" may have happened to the
+ *			channel.
+ * @pause:		Called to initiate a change of the device's state.  If
+ *			the return valu`e is < 0, there was an error and the
+ *			state transition will NOT occur.  If the return value
+ *			is >= 0, then the state transition was INITIATED
+ *			successfully, and complete_func() will be called (or
+ *			was just called) with the final status when either the
+ *			state transition fails or completes successfully.
+ * @resume:		Behaves similar to pause.
+ * @driver:		Private reference to the device driver. For use by bus
+ *			driver only.
+ */
+struct visor_driver {
+	const char *name;
+	struct module *owner;
+	struct visor_channeltype_descriptor *channel_types;
+	int (*probe)(struct visor_device *dev);
+	void (*remove)(struct visor_device *dev);
+	void (*channel_interrupt)(struct visor_device *dev);
+	int (*pause)(struct visor_device *dev,
+		     visorbus_state_complete_func complete_func);
+	int (*resume)(struct visor_device *dev,
+		      visorbus_state_complete_func complete_func);
+
+	/* These fields are for private use by the bus driver only. */
+	struct device_driver driver;
+};
+
+#define to_visor_driver(x) (container_of(x, struct visor_driver, driver))
+
 int visor_check_channel(struct channel_header *ch, struct device *dev,
 			const guid_t *expected_uuid, char *chname,
 			u64 expected_min_bytes,	u32 expected_version,
@@ -182,26 +177,6 @@ int visorbus_write_channel(struct visor_device *dev,
 int visorbus_enable_channel_interrupts(struct visor_device *dev);
 void visorbus_disable_channel_interrupts(struct visor_device *dev);
 
-/*
- * Levels of severity for diagnostic events, in order from lowest severity to
- * highest (i.e. fatal errors are the most severe, and should always be logged,
- * but info events rarely need to be logged except during debugging). The
- * values DIAG_SEVERITY_ENUM_BEGIN and DIAG_SEVERITY_ENUM_END are not valid
- * severity values.  They exist merely to dilineate the list, so that future
- * additions won't require changes to the driver (i.e. when checking for
- * out-of-range severities in SetSeverity). The values DIAG_SEVERITY_OVERRIDE
- * and DIAG_SEVERITY_SHUTOFF are not valid severity values for logging events
- * but they are valid for controlling the amount of event data. Changes made
- * to the enum, need to be reflected in s-Par.
- */
-enum diag_severity {
-	DIAG_SEVERITY_VERBOSE = 0,
-	DIAG_SEVERITY_INFO = 1,
-	DIAG_SEVERITY_WARNING = 2,
-	DIAG_SEVERITY_ERR = 3,
-	DIAG_SEVERITY_PRINT = 4,
-};
-
 int visorchannel_signalremove(struct visorchannel *channel, u32 queue,
 			      void *msg);
 int visorchannel_signalinsert(struct visorchannel *channel, u32 queue,
diff --git a/drivers/staging/unisys/include/channel.h b/drivers/staging/unisys/include/visorchannel.h
index 2babe93631f3..33945749c8b6 100644
--- a/drivers/staging/unisys/include/channel.h
+++ b/drivers/staging/unisys/include/visorchannel.h
@@ -14,17 +14,13 @@
  * details.
  */
 
-#ifndef __CHANNEL_H__
-#define __CHANNEL_H__
+#ifndef __VISORCHANNEL_H__
+#define __VISORCHANNEL_H__
 
 #include <linux/types.h>
-#include <linux/io.h>
 #include <linux/uuid.h>
 
-#define SIGNATURE_16(A, B) ((A) | ((B) << 8))
-#define SIGNATURE_32(A, B, C, D) \
-	(SIGNATURE_16(A, B) | (SIGNATURE_16(C, D) << 16))
-#define VISOR_CHANNEL_SIGNATURE SIGNATURE_32('E', 'C', 'N', 'L')
+#define VISOR_CHANNEL_SIGNATURE ('L' << 24 | 'N' << 16 | 'C' << 8 | 'E')
 
 /*
  * enum channel_serverstate
@@ -183,7 +179,7 @@ struct signal_queue_header {
 	u8 filler[12];
 } __packed;
 
-/* CHANNEL Guids */
+/* VISORCHANNEL Guids */
 /* {414815ed-c58c-11da-95a9-00e08161165f} */
 #define VISOR_VHBA_CHANNEL_GUID \
 	GUID_INIT(0x414815ed, 0xc58c, 0x11da, \
diff --git a/drivers/staging/unisys/visorbus/Makefile b/drivers/staging/unisys/visorbus/Makefile
index f3730d8c953e..784cdc1f9d6a 100644
--- a/drivers/staging/unisys/visorbus/Makefile
+++ b/drivers/staging/unisys/visorbus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Unisys visorbus
 #
diff --git a/drivers/staging/unisys/visorbus/controlvmchannel.h b/drivers/staging/unisys/visorbus/controlvmchannel.h
index 32ff5c1bb6ba..9ee9886a9aed 100644
--- a/drivers/staging/unisys/visorbus/controlvmchannel.h
+++ b/drivers/staging/unisys/visorbus/controlvmchannel.h
@@ -17,7 +17,8 @@
 #define __CONTROLVMCHANNEL_H__
 
 #include <linux/uuid.h>
-#include "channel.h"
+
+#include "visorchannel.h"
 
 /* {2B3C2D10-7EF5-4ad8-B966-3448B7386B3D} */
 #define VISOR_CONTROLVM_CHANNEL_GUID \
diff --git a/drivers/staging/unisys/visorbus/vbuschannel.h b/drivers/staging/unisys/visorbus/vbuschannel.h
index 27e04de14818..981b180f3c4b 100644
--- a/drivers/staging/unisys/visorbus/vbuschannel.h
+++ b/drivers/staging/unisys/visorbus/vbuschannel.h
@@ -26,8 +26,7 @@
  */
 
 #include <linux/uuid.h>
-#include <linux/ctype.h>
-#include "channel.h"
+#include "visorchannel.h"
 
 /* {193b331b-c58f-11da-95a9-00e08161165f} */
 #define VISOR_VBUS_CHANNEL_GUID						\
@@ -50,9 +49,9 @@
  * @infostrs: Kernel vversion.
  * @reserved: Pad size to 256 bytes.
  *
- * An array of this struct is present in the channel area for each vbus.
- * (See vbuschannel.h.). It is filled in by the client side to provide info
- * about the device and driver from the client's perspective.
+ * An array of this struct is present in the channel area for each vbus. It is
+ * filled in by the client side to provide info about the device and driver from
+ * the client's perspective.
  */
 struct visor_vbus_deviceinfo {
 	u8 devtype[16];
@@ -73,7 +72,7 @@ struct visor_vbus_deviceinfo {
  *			      BusInfo struct.
  * @dev_info_offset:	      Byte offset from beginning of this struct to the
  *			      DevInfo array.
- * @reserved:		      Natural Alignment
+ * @reserved:		      Natural alignment.
  */
 struct visor_vbus_headerinfo {
 	u32 struct_bytes;
@@ -97,7 +96,6 @@ struct visor_vbus_headerinfo {
 struct visor_vbus_channel {
 	struct channel_header channel_header;
 	struct visor_vbus_headerinfo hdr_info;
-	/* The remainder of this channel is filled in by the client */
 	struct visor_vbus_deviceinfo chp_info;
 	struct visor_vbus_deviceinfo bus_info;
 	struct visor_vbus_deviceinfo dev_info[0];
diff --git a/drivers/staging/unisys/visorbus/visorbus_main.c b/drivers/staging/unisys/visorbus/visorbus_main.c
index 2bc7ff7bb96a..b604d0cccef1 100644
--- a/drivers/staging/unisys/visorbus/visorbus_main.c
+++ b/drivers/staging/unisys/visorbus/visorbus_main.c
@@ -13,7 +13,10 @@
  * details.
  */
 
+#include <linux/ctype.h>
 #include <linux/debugfs.h>
+#include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/uuid.h>
 
 #include "visorbus.h"
@@ -69,12 +72,9 @@ static LIST_HEAD(list_all_device_instances);
  * Note that <logCtx> is only needed for callers in the EFI environment, and
  * is used to pass the EFI_DIAG_CAPTURE_PROTOCOL needed to log messages.
  */
-int visor_check_channel(struct channel_header *ch,
-			struct device *dev,
-			const guid_t *expected_guid,
-			char *chname,
-			u64 expected_min_bytes,
-			u32 expected_version,
+int visor_check_channel(struct channel_header *ch, struct device *dev,
+			const guid_t *expected_guid, char *chname,
+			u64 expected_min_bytes, u32 expected_version,
 			u64 expected_signature)
 {
 	if (!guid_is_null(expected_guid)) {
@@ -125,7 +125,6 @@ static int visorbus_uevent(struct device *xdev, struct kobj_uevent_env *env)
 
 	dev = to_visor_device(xdev);
 	guid = visorchannel_get_guid(dev->visorchannel);
-
 	return add_uevent_var(env, "MODALIAS=visorbus:%pUl", guid);
 }
 
@@ -144,17 +143,24 @@ static int visorbus_match(struct device *xdev, struct device_driver *xdrv)
 	int i;
 	struct visor_device *dev;
 	struct visor_driver *drv;
+	struct visorchannel *chan;
 
 	dev = to_visor_device(xdev);
 	channel_type = visorchannel_get_guid(dev->visorchannel);
 	drv = to_visor_driver(xdrv);
+	chan = dev->visorchannel;
 	if (!drv->channel_types)
 		return 0;
-
 	for (i = 0; !guid_is_null(&drv->channel_types[i].guid); i++)
-		if (guid_equal(&drv->channel_types[i].guid, channel_type))
+		if (guid_equal(&drv->channel_types[i].guid, channel_type) &&
+		    visor_check_channel(visorchannel_get_header(chan),
+					xdev,
+					&drv->channel_types[i].guid,
+					(char *)drv->channel_types[i].name,
+					drv->channel_types[i].min_bytes,
+					drv->channel_types[i].version,
+					VISOR_CHANNEL_SIGNATURE))
 			return i + 1;
-
 	return 0;
 }
 
@@ -162,13 +168,48 @@ static int visorbus_match(struct device *xdev, struct device_driver *xdrv)
  * This describes the TYPE of bus.
  * (Don't confuse this with an INSTANCE of the bus.)
  */
-struct bus_type visorbus_type = {
+static struct bus_type visorbus_type = {
 	.name = "visorbus",
 	.match = visorbus_match,
 	.uevent = visorbus_uevent,
 	.dev_groups = visorbus_dev_groups,
 };
 
+struct visor_busdev {
+	u32 bus_no;
+	u32 dev_no;
+};
+
+static int match_visorbus_dev_by_id(struct device *dev, void *data)
+{
+	struct visor_device *vdev = to_visor_device(dev);
+	struct visor_busdev *id = data;
+
+	if (vdev->chipset_bus_no == id->bus_no &&
+	    vdev->chipset_dev_no == id->dev_no)
+		return 1;
+	return 0;
+}
+
+struct visor_device *visorbus_get_device_by_id(u32 bus_no, u32 dev_no,
+					       struct visor_device *from)
+{
+	struct device *dev;
+	struct device *dev_start = NULL;
+	struct visor_busdev id = {
+		.bus_no = bus_no,
+		.dev_no = dev_no
+	};
+
+	if (from)
+		dev_start = &from->device;
+	dev = bus_find_device(&visorbus_type, dev_start, (void *)&id,
+			      match_visorbus_dev_by_id);
+	if (!dev)
+		return NULL;
+	return to_visor_device(dev);
+}
+
 /*
  * visorbus_release_busdevice() - called when device_unregister() is called for
  *                                the bus device instance, after all other tasks
@@ -179,8 +220,9 @@ static void visorbus_release_busdevice(struct device *xdev)
 {
 	struct visor_device *dev = dev_get_drvdata(xdev);
 
-	debugfs_remove(dev->debugfs_client_bus_info);
+	debugfs_remove(dev->debugfs_bus_info);
 	debugfs_remove_recursive(dev->debugfs_dir);
+	visorchannel_destroy(dev->visorchannel);
 	kfree(dev);
 }
 
@@ -198,7 +240,7 @@ static void visorbus_release_device(struct device *xdev)
 }
 
 /*
- * begin implementation of specific channel attributes to appear under
+ * BUS specific channel attributes to appear under
  * /sys/bus/visorbus<x>/dev<y>/channel
  */
 
@@ -218,7 +260,7 @@ static ssize_t nbytes_show(struct device *dev, struct device_attribute *attr,
 	struct visor_device *vdev = to_visor_device(dev);
 
 	return sprintf(buf, "0x%lx\n",
-			visorchannel_get_nbytes(vdev->visorchannel));
+		       visorchannel_get_nbytes(vdev->visorchannel));
 }
 static DEVICE_ATTR_RO(nbytes);
 
@@ -284,18 +326,14 @@ static struct attribute *channel_attrs[] = {
 
 ATTRIBUTE_GROUPS(channel);
 
-/* end implementation of specific channel attributes */
-
 /*
  *  BUS instance attributes
  *
  *  define & implement display of bus attributes under
  *  /sys/bus/visorbus/devices/visorbus<n>.
  */
-
 static ssize_t partition_handle_show(struct device *dev,
-				     struct device_attribute *attr,
-				     char *buf)
+				     struct device_attribute *attr, char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
 	u64 handle = visorchannel_get_clientpartition(vdev->visorchannel);
@@ -305,8 +343,7 @@ static ssize_t partition_handle_show(struct device *dev,
 static DEVICE_ATTR_RO(partition_handle);
 
 static ssize_t partition_guid_show(struct device *dev,
-				   struct device_attribute *attr,
-				   char *buf)
+				   struct device_attribute *attr, char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
 
@@ -315,8 +352,7 @@ static ssize_t partition_guid_show(struct device *dev,
 static DEVICE_ATTR_RO(partition_guid);
 
 static ssize_t partition_name_show(struct device *dev,
-				   struct device_attribute *attr,
-				   char *buf)
+				   struct device_attribute *attr, char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
 
@@ -325,8 +361,7 @@ static ssize_t partition_name_show(struct device *dev,
 static DEVICE_ATTR_RO(partition_name);
 
 static ssize_t channel_addr_show(struct device *dev,
-				 struct device_attribute *attr,
-				 char *buf)
+				 struct device_attribute *attr, char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
 	u64 addr = visorchannel_get_physaddr(vdev->visorchannel);
@@ -336,8 +371,7 @@ static ssize_t channel_addr_show(struct device *dev,
 static DEVICE_ATTR_RO(channel_addr);
 
 static ssize_t channel_bytes_show(struct device *dev,
-				  struct device_attribute *attr,
-				  char *buf)
+				  struct device_attribute *attr, char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
 	u64 nbytes = visorchannel_get_nbytes(vdev->visorchannel);
@@ -347,8 +381,7 @@ static ssize_t channel_bytes_show(struct device *dev,
 static DEVICE_ATTR_RO(channel_bytes);
 
 static ssize_t channel_id_show(struct device *dev,
-			       struct device_attribute *attr,
-			       char *buf)
+			       struct device_attribute *attr, char *buf)
 {
 	struct visor_device *vdev = to_visor_device(dev);
 	int len = 0;
@@ -356,7 +389,6 @@ static ssize_t channel_id_show(struct device *dev,
 	visorchannel_id(vdev->visorchannel, buf);
 	len = strlen(buf);
 	buf[len++] = '\n';
-
 	return len;
 }
 static DEVICE_ATTR_RO(channel_id);
@@ -396,13 +428,11 @@ static void vbuschannel_print_devinfo(struct visor_vbus_deviceinfo *devinfo,
 	/* uninitialized vbus device entry */
 	if (!isprint(devinfo->devtype[0]))
 		return;
-
 	if (devix >= 0)
 		seq_printf(seq, "[%d]", devix);
 	else
 		/* vbus device entry is for bus or chipset */
 		seq_puts(seq, "   ");
-
 	/*
 	 * Note: because the s-Par back-end is free to scribble in this area,
 	 * we never assume '\0'-termination.
@@ -415,7 +445,7 @@ static void vbuschannel_print_devinfo(struct visor_vbus_deviceinfo *devinfo,
 		   devinfo->infostrs);
 }
 
-static int client_bus_info_debugfs_show(struct seq_file *seq, void *v)
+static int bus_info_debugfs_show(struct seq_file *seq, void *v)
 {
 	int i = 0;
 	unsigned long off;
@@ -427,10 +457,9 @@ static int client_bus_info_debugfs_show(struct seq_file *seq, void *v)
 		return 0;
 
 	seq_printf(seq,
-		   "Client device / client driver info for %s partition (vbus #%u):\n",
+		   "Client device/driver info for %s partition (vbus #%u):\n",
 		   ((vdev->name) ? (char *)(vdev->name) : ""),
 		   vdev->chipset_bus_no);
-
 	if (visorchannel_read(channel,
 			      offsetof(struct visor_vbus_channel, chp_info),
 			      &dev_info, sizeof(dev_info)) >= 0)
@@ -448,19 +477,17 @@ static int client_bus_info_debugfs_show(struct seq_file *seq, void *v)
 		off += sizeof(dev_info);
 		i++;
 	}
-
 	return 0;
 }
 
-static int client_bus_info_debugfs_open(struct inode *inode, struct file *file)
+static int bus_info_debugfs_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, client_bus_info_debugfs_show,
-			   inode->i_private);
+	return single_open(file, bus_info_debugfs_show, inode->i_private);
 }
 
-static const struct file_operations client_bus_info_debugfs_fops = {
+static const struct file_operations bus_info_debugfs_fops = {
 	.owner = THIS_MODULE,
-	.open = client_bus_info_debugfs_open,
+	.open = bus_info_debugfs_open,
 	.read = seq_read,
 	.llseek = seq_lseek,
 	.release = single_release,
@@ -479,6 +506,7 @@ static int dev_start_periodic_work(struct visor_device *dev)
 {
 	if (dev->being_removed || dev->timer_active)
 		return -EINVAL;
+
 	/* now up by at least 2 */
 	get_device(&dev->device);
 	dev->timer.expires = jiffies + POLLJIFFIES_NORMALCHANNEL;
@@ -491,6 +519,7 @@ static void dev_stop_periodic_work(struct visor_device *dev)
 {
 	if (!dev->timer_active)
 		return;
+
 	del_timer_sync(&dev->timer);
 	dev->timer_active = false;
 	put_device(&dev->device);
@@ -508,20 +537,15 @@ static void dev_stop_periodic_work(struct visor_device *dev)
  */
 static int visordriver_remove_device(struct device *xdev)
 {
-	struct visor_device *dev;
-	struct visor_driver *drv;
-
-	dev = to_visor_device(xdev);
-	drv = to_visor_driver(xdev->driver);
+	struct visor_device *dev = to_visor_device(xdev);
+	struct visor_driver *drv = to_visor_driver(xdev->driver);
 
 	mutex_lock(&dev->visordriver_callback_lock);
 	dev->being_removed = true;
 	drv->remove(dev);
 	mutex_unlock(&dev->visordriver_callback_lock);
-
 	dev_stop_periodic_work(dev);
 	put_device(&dev->device);
-
 	return 0;
 }
 
@@ -546,8 +570,7 @@ EXPORT_SYMBOL_GPL(visorbus_unregister_visor_driver);
  * @dest:   the destination buffer that is written into from the channel
  * @nbytes: the number of bytes to read from the channel
  *
- * If receiving a message, use the visorchannel_signalremove()
- * function instead.
+ * If receiving a message, use the visorchannel_signalremove() function instead.
  *
  * Return: integer indicating success (zero) or failure (non-zero)
  */
@@ -566,8 +589,7 @@ EXPORT_SYMBOL_GPL(visorbus_read_channel);
  * @src:    the source buffer that is written into the channel
  * @nbytes: the number of bytes to write into the channel
  *
- * If sending a message, use the visorchannel_signalinsert()
- * function instead.
+ * If sending a message, use the visorchannel_signalinsert() function instead.
  *
  * Return: integer indicating success (zero) or failure (non-zero)
  */
@@ -618,17 +640,16 @@ EXPORT_SYMBOL_GPL(visorbus_disable_channel_interrupts);
  *
  * This is how everything starts from the device end.
  * This function is called when a channel first appears via a ControlVM
- * message.  In response, this function allocates a visor_device to
- * correspond to the new channel, and attempts to connect it the appropriate
- * driver.  If the appropriate driver is found, the visor_driver.probe()
- * function for that driver will be called, and will be passed the new
- * visor_device that we just created.
+ * message.  In response, this function allocates a visor_device to correspond
+ * to the new channel, and attempts to connect it the appropriate * driver. If
+ * the appropriate driver is found, the visor_driver.probe() function for that
+ * driver will be called, and will be passed the new * visor_device that we
+ * just created.
  *
  * It's ok if the appropriate driver is not yet loaded, because in that case
  * the new device struct will just stick around in the bus' list of devices.
  * When the appropriate driver calls visorbus_register_visor_driver(), the
- * visor_driver.probe() for the new driver will be called with the new
- * device.
+ * visor_driver.probe() for the new driver will be called with the new device.
  *
  * Return: 0 if successful, otherwise the negative value returned by
  *         device_add() indicating the reason for failure
@@ -647,17 +668,15 @@ int create_visor_device(struct visor_device *dev)
 	/* keep a reference just for us (now 2) */
 	get_device(&dev->device);
 	setup_timer(&dev->timer, dev_periodic_work, (unsigned long)dev);
-
 	/*
-	 * bus_id must be a unique name with respect to this bus TYPE
-	 * (NOT bus instance).  That's why we need to include the bus
-	 * number within the name.
+	 * bus_id must be a unique name with respect to this bus TYPE (NOT bus
+	 * instance).  That's why we need to include the bus number within the
+	 * name.
 	 */
 	err = dev_set_name(&dev->device, "vbus%u:dev%u",
 			   chipset_bus_no, chipset_dev_no);
 	if (err)
 		goto err_put;
-
 	/*
 	 * device_add does this:
 	 *    bus_add_device(dev)
@@ -671,14 +690,13 @@ int create_visor_device(struct visor_device *dev)
 	 *              if (!drv.probe(dev))  [visordriver_probe_device]
 	 *                dev.drv = NULL
 	 *
-	 *  Note that device_add does NOT fail if no driver failed to
-	 *  claim the device.  The device will be linked onto
-	 *  bus_type.klist_devices regardless (use bus_for_each_dev).
+	 * Note that device_add does NOT fail if no driver failed to claim the
+	 * device.  The device will be linked onto bus_type.klist_devices
+	 * regardless (use bus_for_each_dev).
 	 */
 	err = device_add(&dev->device);
 	if (err < 0)
 		goto err_put;
-
 	list_add_tail(&dev->list_all, &list_all_device_instances);
 	dev->state.created = 1;
 	visorbus_response(dev, err, CONTROLVM_DEVICE_CREATE);
@@ -695,8 +713,9 @@ void remove_visor_device(struct visor_device *dev)
 {
 	list_del(&dev->list_all);
 	put_device(&dev->device);
+	if (dev->pending_msg_hdr)
+		visorbus_response(dev, 0, CONTROLVM_DEVICE_DESTROY);
 	device_unregister(&dev->device);
-	visorbus_response(dev, 0, CONTROLVM_DEVICE_DESTROY);
 }
 
 static int get_vbus_header_info(struct visorchannel *chan,
@@ -718,14 +737,11 @@ static int get_vbus_header_info(struct visorchannel *chan,
 				sizeof(*hdr_info));
 	if (err < 0)
 		return err;
-
 	if (hdr_info->struct_bytes < sizeof(struct visor_vbus_headerinfo))
 		return -EINVAL;
-
 	if (hdr_info->device_info_struct_bytes <
 	    sizeof(struct visor_vbus_deviceinfo))
 		return -EINVAL;
-
 	return 0;
 }
 
@@ -746,11 +762,12 @@ static void write_vbus_chp_info(struct visorchannel *chan,
 				struct visor_vbus_headerinfo *hdr_info,
 				struct visor_vbus_deviceinfo *info)
 {
-	int off = sizeof(struct channel_header) + hdr_info->chp_info_offset;
+	int off;
 
 	if (hdr_info->chp_info_offset == 0)
 		return;
 
+	off = sizeof(struct channel_header) + hdr_info->chp_info_offset;
 	visorchannel_write(chan, off, info, sizeof(*info));
 }
 
@@ -771,11 +788,12 @@ static void write_vbus_bus_info(struct visorchannel *chan,
 				struct visor_vbus_headerinfo *hdr_info,
 				struct visor_vbus_deviceinfo *info)
 {
-	int off = sizeof(struct channel_header) + hdr_info->bus_info_offset;
+	int off;
 
 	if (hdr_info->bus_info_offset == 0)
 		return;
 
+	off = sizeof(struct channel_header) + hdr_info->bus_info_offset;
 	visorchannel_write(chan, off, info, sizeof(*info));
 }
 
@@ -798,13 +816,12 @@ static void write_vbus_dev_info(struct visorchannel *chan,
 				struct visor_vbus_deviceinfo *info,
 				unsigned int devix)
 {
-	int off =
-	    (sizeof(struct channel_header) + hdr_info->dev_info_offset) +
-	    (hdr_info->device_info_struct_bytes * devix);
+	int off;
 
 	if (hdr_info->dev_info_offset == 0)
 		return;
-
+	off = (sizeof(struct channel_header) + hdr_info->dev_info_offset) +
+	      (hdr_info->device_info_struct_bytes * devix);
 	visorchannel_write(chan, off, info, sizeof(*info));
 }
 
@@ -844,7 +861,6 @@ static void publish_vbus_dev_info(struct visor_device *visordev)
 
 	if (!visordev->device.driver)
 		return;
-
 	bdev = visorbus_get_device_by_id(bus_no, BUS_ROOT_DEVICE, NULL);
 	if (!bdev)
 		return;
@@ -860,14 +876,12 @@ static void publish_vbus_dev_info(struct visor_device *visordev)
 	 * type name
 	 */
 	for (i = 0; visordrv->channel_types[i].name; i++) {
-		if (memcmp(&visordrv->channel_types[i].guid,
-			   &visordev->channel_type_guid,
-			   sizeof(visordrv->channel_types[i].guid)) == 0) {
+		if (guid_equal(&visordrv->channel_types[i].guid,
+			       &visordev->channel_type_guid)) {
 			chan_type_name = visordrv->channel_types[i].name;
 			break;
 		}
 	}
-
 	bus_device_info_init(&dev_info, chan_type_name, visordrv->name);
 	write_vbus_dev_info(bdev->visorchannel, hdr_info, &dev_info, dev_no);
 	write_vbus_chp_info(bdev->visorchannel, hdr_info, &chipset_driverinfo);
@@ -892,36 +906,32 @@ static void publish_vbus_dev_info(struct visor_device *visordev)
  */
 static int visordriver_probe_device(struct device *xdev)
 {
-	int res;
-	struct visor_driver *drv;
-	struct visor_device *dev;
-
-	dev = to_visor_device(xdev);
-	drv = to_visor_driver(xdev->driver);
+	int err;
+	struct visor_driver *drv = to_visor_driver(xdev->driver);
+	struct visor_device *dev = to_visor_device(xdev);
 
 	mutex_lock(&dev->visordriver_callback_lock);
 	dev->being_removed = false;
-
-	res = drv->probe(dev);
-	if (res >= 0) {
-		/* success: reference kept via unmatched get_device() */
-		get_device(&dev->device);
-		publish_vbus_dev_info(dev);
+	err = drv->probe(dev);
+	if (err) {
+		mutex_unlock(&dev->visordriver_callback_lock);
+		return err;
 	}
-
+	/* success: reference kept via unmatched get_device() */
+	get_device(&dev->device);
+	publish_vbus_dev_info(dev);
 	mutex_unlock(&dev->visordriver_callback_lock);
-	return res;
+	return 0;
 }
 
 /*
- * visorbus_register_visor_driver() - registers the provided visor driver
- *                                    for handling one or more visor device
+ * visorbus_register_visor_driver() - registers the provided visor driver for
+ *				      handling one or more visor device
  *                                    types (channel_types)
  * @drv: the driver to register
  *
- * A visor function driver calls this function to register
- * the driver.  The caller MUST fill in the following fields within the
- * #drv structure:
+ * A visor function driver calls this function to register the driver. The
+ * caller MUST fill in the following fields within the #drv structure:
  *     name, version, owner, channel_types, probe, remove
  *
  * Here's how the whole Linux bus / driver / device model works.
@@ -967,16 +977,12 @@ int visorbus_register_visor_driver(struct visor_driver *drv)
 	/* can't register on a nonexistent bus */
 	if (!initialized)
 		return -ENODEV;
-
 	if (!drv->probe)
 		return -EINVAL;
-
 	if (!drv->remove)
 		return -EINVAL;
-
 	if (!drv->pause)
 		return -EINVAL;
-
 	if (!drv->resume)
 		return -EINVAL;
 
@@ -985,7 +991,6 @@ int visorbus_register_visor_driver(struct visor_driver *drv)
 	drv->driver.probe = visordriver_probe_device;
 	drv->driver.remove = visordriver_remove_device;
 	drv->driver.owner = drv->owner;
-
 	/*
 	 * driver_register does this:
 	 *   bus_add_driver(drv)
@@ -998,7 +1003,6 @@ int visorbus_register_visor_driver(struct visor_driver *drv)
 	 *               if (!drv.probe(dev))   [visordriver_probe_device]
 	 *                 dev.drv = NULL
 	 */
-
 	return driver_register(&drv->driver);
 }
 EXPORT_SYMBOL_GPL(visorbus_register_visor_driver);
@@ -1019,39 +1023,28 @@ int visorbus_create_instance(struct visor_device *dev)
 	hdr_info = kzalloc(sizeof(*hdr_info), GFP_KERNEL);
 	if (!hdr_info)
 		return -ENOMEM;
-
 	dev_set_name(&dev->device, "visorbus%d", id);
 	dev->device.bus = &visorbus_type;
 	dev->device.groups = visorbus_groups;
 	dev->device.release = visorbus_release_busdevice;
-
 	dev->debugfs_dir = debugfs_create_dir(dev_name(&dev->device),
 					      visorbus_debugfs_dir);
-	dev->debugfs_client_bus_info =
-		debugfs_create_file("client_bus_info", 0440,
-				    dev->debugfs_dir, dev,
-				    &client_bus_info_debugfs_fops);
-
+	dev->debugfs_bus_info = debugfs_create_file("client_bus_info", 0440,
+						    dev->debugfs_dir, dev,
+						    &bus_info_debugfs_fops);
 	dev_set_drvdata(&dev->device, dev);
 	err = get_vbus_header_info(dev->visorchannel, &dev->device, hdr_info);
 	if (err < 0)
 		goto err_debugfs_dir;
-
 	err = device_register(&dev->device);
 	if (err < 0)
 		goto err_debugfs_dir;
-
 	list_add_tail(&dev->list_all, &list_all_bus_instances);
-
 	dev->state.created = 1;
 	dev->vbus_hdr_info = (void *)hdr_info;
-	write_vbus_chp_info(dev->visorchannel, hdr_info,
-			    &chipset_driverinfo);
-	write_vbus_bus_info(dev->visorchannel, hdr_info,
-			    &clientbus_driverinfo);
-
+	write_vbus_chp_info(dev->visorchannel, hdr_info, &chipset_driverinfo);
+	write_vbus_bus_info(dev->visorchannel, hdr_info, &clientbus_driverinfo);
 	visorbus_response(dev, err, CONTROLVM_BUS_CREATE);
-
 	return 0;
 
 err_debugfs_dir:
@@ -1075,11 +1068,11 @@ void visorbus_remove_instance(struct visor_device *dev)
 	 * successfully been able to trace thru the code to see where/how
 	 * release() gets called.  But I know it does.
 	 */
-	visorchannel_destroy(dev->visorchannel);
 	kfree(dev->vbus_hdr_info);
 	list_del(&dev->list_all);
+	if (dev->pending_msg_hdr)
+		visorbus_response(dev, 0, CONTROLVM_BUS_DESTROY);
 	device_unregister(&dev->device);
-	visorbus_response(dev, 0, CONTROLVM_BUS_DESTROY);
 }
 
 /*
@@ -1090,9 +1083,9 @@ static void remove_all_visor_devices(void)
 	struct list_head *listentry, *listtmp;
 
 	list_for_each_safe(listentry, listtmp, &list_all_device_instances) {
-		struct visor_device *dev = list_entry(listentry,
-						      struct visor_device,
-						      list_all);
+		struct visor_device *dev;
+
+		dev = list_entry(listentry, struct visor_device, list_all);
 		remove_visor_device(dev);
 	}
 }
@@ -1131,7 +1124,6 @@ static void resume_state_change_complete(struct visor_device *dev, int status)
 		return;
 
 	dev->resuming = false;
-
 	/*
 	 * Notify the chipset driver that the resume is complete,
 	 * which will presumably want to send some sort of response to
@@ -1156,7 +1148,7 @@ static int visorchipset_initiate_device_pause_resume(struct visor_device *dev,
 						     bool is_pause)
 {
 	int err;
-	struct visor_driver *drv = NULL;
+	struct visor_driver *drv;
 
 	/* If no driver associated with the device nothing to pause/resume */
 	if (!dev->device.driver)
@@ -1177,7 +1169,6 @@ static int visorchipset_initiate_device_pause_resume(struct visor_device *dev,
 		dev->resuming = true;
 		err = drv->resume(dev, resume_state_change_complete);
 	}
-
 	return err;
 }
 
@@ -1198,7 +1189,6 @@ int visorchipset_device_pause(struct visor_device *dev_info)
 		dev_info->pausing = false;
 		return err;
 	}
-
 	return 0;
 }
 
@@ -1219,7 +1209,6 @@ int visorchipset_device_resume(struct visor_device *dev_info)
 		dev_info->resuming = false;
 		return err;
 	}
-
 	return 0;
 }
 
@@ -1228,18 +1217,12 @@ int visorbus_init(void)
 	int err;
 
 	visorbus_debugfs_dir = debugfs_create_dir("visorbus", NULL);
-	if (!visorbus_debugfs_dir)
-		return -ENOMEM;
-
 	bus_device_info_init(&clientbus_driverinfo, "clientbus", "visorbus");
-
 	err = bus_register(&visorbus_type);
 	if (err < 0)
 		return err;
-
 	initialized = true;
 	bus_device_info_init(&chipset_driverinfo, "chipset", "visorchipset");
-
 	return 0;
 }
 
@@ -1248,14 +1231,12 @@ void visorbus_exit(void)
 	struct list_head *listentry, *listtmp;
 
 	remove_all_visor_devices();
-
 	list_for_each_safe(listentry, listtmp, &list_all_bus_instances) {
-		struct visor_device *dev = list_entry(listentry,
-						      struct visor_device,
-						      list_all);
+		struct visor_device *dev;
+
+		dev = list_entry(listentry, struct visor_device, list_all);
 		visorbus_remove_instance(dev);
 	}
-
 	bus_unregister(&visorbus_type);
 	initialized = false;
 	debugfs_remove_recursive(visorbus_debugfs_dir);
diff --git a/drivers/staging/unisys/visorbus/visorbus_private.h b/drivers/staging/unisys/visorbus/visorbus_private.h
index e878d65ab668..4a8b12d7cfaa 100644
--- a/drivers/staging/unisys/visorbus/visorbus_private.h
+++ b/drivers/staging/unisys/visorbus/visorbus_private.h
@@ -23,25 +23,23 @@
 #include "vbuschannel.h"
 #include "visorbus.h"
 
+struct visor_device *visorbus_get_device_by_id(u32 bus_no, u32 dev_no,
+					       struct visor_device *from);
 int visorbus_create_instance(struct visor_device *dev);
 void visorbus_remove_instance(struct visor_device *bus_info);
 int create_visor_device(struct visor_device *dev_info);
 void remove_visor_device(struct visor_device *dev_info);
 int visorchipset_device_pause(struct visor_device *dev_info);
 int visorchipset_device_resume(struct visor_device *dev_info);
-
 void visorbus_response(struct visor_device *p, int response, int controlvm_id);
 void visorbus_device_changestate_response(struct visor_device *p, int response,
 					  struct visor_segment_state state);
-
 int visorbus_init(void);
 void visorbus_exit(void);
 
 /* visorchannel access functions */
 struct visorchannel *visorchannel_create(u64 physaddr, gfp_t gfp,
-					 const guid_t *guid);
-struct visorchannel *visorchannel_create_with_lock(u64 physaddr, gfp_t gfp,
-						   const guid_t *guid);
+					 const guid_t *guid, bool needs_lock);
 void visorchannel_destroy(struct visorchannel *channel);
 int visorchannel_read(struct visorchannel *channel, ulong offset,
 		      void *dest, ulong nbytes);
diff --git a/drivers/staging/unisys/visorbus/visorchannel.c b/drivers/staging/unisys/visorbus/visorchannel.c
index 2a000fee3119..aae16073ba03 100644
--- a/drivers/staging/unisys/visorbus/visorchannel.c
+++ b/drivers/staging/unisys/visorbus/visorchannel.c
@@ -20,6 +20,7 @@
 
 #include <linux/uuid.h>
 #include <linux/io.h>
+#include <linux/slab.h>
 
 #include "visorbus.h"
 #include "visorbus_private.h"
@@ -41,8 +42,8 @@ struct visorchannel {
 	struct channel_header chan_hdr;
 	guid_t guid;
 	/*
-	 * channel creator knows if more than one
-	 * thread will be inserting or removing
+	 * channel creator knows if more than one thread will be inserting or
+	 * removing
 	 */
 	bool needs_lock;
 	/* protect head writes in chan_hdr */
@@ -57,6 +58,7 @@ void visorchannel_destroy(struct visorchannel *channel)
 {
 	if (!channel)
 		return;
+
 	if (channel->mapped) {
 		memunmap(channel->mapped);
 		if (channel->requested)
@@ -122,7 +124,6 @@ int visorchannel_read(struct visorchannel *channel, ulong offset, void *dest,
 		return -EIO;
 
 	memcpy(dest, channel->mapped + offset, nbytes);
-
 	return 0;
 }
 
@@ -140,9 +141,7 @@ int visorchannel_write(struct visorchannel *channel, ulong offset, void *dest,
 		memcpy(((char *)(&channel->chan_hdr)) + offset,
 		       dest, copy_size);
 	}
-
 	memcpy(channel->mapped + offset, dest, nbytes);
-
 	return 0;
 }
 
@@ -173,8 +172,8 @@ static int sig_data_offset(struct channel_header *chan_hdr, int q,
 }
 
 /*
- * Write the contents of a specific field within a SIGNAL_QUEUE_HEADER back
- * into host memory
+ * Write the contents of a specific field within a SIGNAL_QUEUE_HEADER back into
+ * host memory
  */
 #define SIG_WRITE_FIELD(channel, queue, sig_hdr, FIELD) \
 	visorchannel_write(channel, \
@@ -226,32 +225,25 @@ static int signalremove_inner(struct visorchannel *channel, u32 queue,
 	error = sig_read_header(channel, queue, &sig_hdr);
 	if (error)
 		return error;
-
 	/* No signals to remove; have caller try again. */
 	if (sig_hdr.head == sig_hdr.tail)
 		return -EAGAIN;
-
 	sig_hdr.tail = (sig_hdr.tail + 1) % sig_hdr.max_slots;
-
 	error = sig_read_data(channel, queue, &sig_hdr, sig_hdr.tail, msg);
 	if (error)
 		return error;
-
 	sig_hdr.num_received++;
-
 	/*
-	 * For each data field in SIGNAL_QUEUE_HEADER that was modified,
-	 * update host memory. Required for channel sync.
+	 * For each data field in SIGNAL_QUEUE_HEADER that was modified, update
+	 * host memory. Required for channel sync.
 	 */
 	mb();
-
 	error = SIG_WRITE_FIELD(channel, queue, &sig_hdr, tail);
 	if (error)
 		return error;
 	error = SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_received);
 	if (error)
 		return error;
-
 	return 0;
 }
 
@@ -288,13 +280,12 @@ static bool queue_empty(struct visorchannel *channel, u32 queue)
 
 	if (sig_read_header(channel, queue, &sig_hdr))
 		return true;
-
 	return (sig_hdr.head == sig_hdr.tail);
 }
 
 /**
- * visorchannel_signalempty() - checks if the designated channel/queue
- *                              contains any messages
+ * visorchannel_signalempty() - checks if the designated channel/queue contains
+ *				any messages
  * @channel: the channel to query
  * @queue:   the queue in the channel to query
  *
@@ -308,11 +299,9 @@ bool visorchannel_signalempty(struct visorchannel *channel, u32 queue)
 
 	if (!channel->needs_lock)
 		return queue_empty(channel, queue);
-
 	spin_lock_irqsave(&channel->remove_lock, flags);
 	rc = queue_empty(channel, queue);
 	spin_unlock_irqrestore(&channel->remove_lock, flags);
-
 	return rc;
 }
 EXPORT_SYMBOL_GPL(visorchannel_signalempty);
@@ -326,7 +315,6 @@ static int signalinsert_inner(struct visorchannel *channel, u32 queue,
 	err = sig_read_header(channel, queue, &sig_hdr);
 	if (err)
 		return err;
-
 	sig_hdr.head = (sig_hdr.head + 1) % sig_hdr.max_slots;
 	if (sig_hdr.head == sig_hdr.tail) {
 		sig_hdr.num_overflows++;
@@ -335,33 +323,28 @@ static int signalinsert_inner(struct visorchannel *channel, u32 queue,
 			return err;
 		return -EIO;
 	}
-
 	err = sig_write_data(channel, queue, &sig_hdr, sig_hdr.head, msg);
 	if (err)
 		return err;
-
 	sig_hdr.num_sent++;
-
 	/*
-	 * For each data field in SIGNAL_QUEUE_HEADER that was modified,
-	 * update host memory. Required for channel sync.
+	 * For each data field in SIGNAL_QUEUE_HEADER that was modified, update
+	 * host memory. Required for channel sync.
 	 */
 	mb();
-
 	err = SIG_WRITE_FIELD(channel, queue, &sig_hdr, head);
 	if (err)
 		return err;
 	err = SIG_WRITE_FIELD(channel, queue, &sig_hdr, num_sent);
 	if (err)
 		return err;
-
 	return 0;
 }
 
 /*
- * visorchannel_create_guts() - creates the struct visorchannel abstraction
- *                              for a data area in memory, but does NOT modify
- *                              this data area
+ * visorchannel_create() - creates the struct visorchannel abstraction for a
+ *                         data area in memory, but does NOT modify this data
+ *                         area
  * @physaddr:      physical address of start of channel
  * @gfp:           gfp_t to use when allocating memory for the data struct
  * @guid:          GUID that identifies channel type;
@@ -372,9 +355,8 @@ static int signalinsert_inner(struct visorchannel *channel, u32 queue,
  * Return: pointer to visorchannel that was created if successful,
  *         otherwise NULL
  */
-static struct visorchannel *visorchannel_create_guts(u64 physaddr, gfp_t gfp,
-						     const guid_t *guid,
-						     bool needs_lock)
+struct visorchannel *visorchannel_create(u64 physaddr, gfp_t gfp,
+					 const guid_t *guid, bool needs_lock)
 {
 	struct visorchannel *channel;
 	int err;
@@ -386,37 +368,30 @@ static struct visorchannel *visorchannel_create_guts(u64 physaddr, gfp_t gfp,
 	channel = kzalloc(sizeof(*channel), gfp);
 	if (!channel)
 		return NULL;
-
 	channel->needs_lock = needs_lock;
 	spin_lock_init(&channel->insert_lock);
 	spin_lock_init(&channel->remove_lock);
-
 	/*
-	 * Video driver constains the efi framebuffer so it will get a
-	 * conflict resource when requesting its full mem region. Since
-	 * we are only using the efi framebuffer for video we can ignore
-	 * this. Remember that we haven't requested it so we don't try to
-	 * release later on.
+	 * Video driver constains the efi framebuffer so it will get a conflict
+	 * resource when requesting its full mem region. Since we are only
+	 * using the efi framebuffer for video we can ignore this. Remember that
+	 * we haven't requested it so we don't try to release later on.
 	 */
 	channel->requested = request_mem_region(physaddr, size, VISOR_DRV_NAME);
 	if (!channel->requested && !guid_equal(guid, &visor_video_guid))
 		/* we only care about errors if this is not the video channel */
 		goto err_destroy_channel;
-
 	channel->mapped = memremap(physaddr, size, MEMREMAP_WB);
 	if (!channel->mapped) {
 		release_mem_region(physaddr, size);
 		goto err_destroy_channel;
 	}
-
 	channel->physaddr = physaddr;
 	channel->nbytes = size;
-
 	err = visorchannel_read(channel, 0, &channel->chan_hdr, size);
 	if (err)
 		goto err_destroy_channel;
 	size = (ulong)channel->chan_hdr.size;
-
 	memunmap(channel->mapped);
 	if (channel->requested)
 		release_mem_region(channel->physaddr, channel->nbytes);
@@ -426,13 +401,11 @@ static struct visorchannel *visorchannel_create_guts(u64 physaddr, gfp_t gfp,
 	if (!channel->requested && !guid_equal(guid, &visor_video_guid))
 		/* we only care about errors if this is not the video channel */
 		goto err_destroy_channel;
-
 	channel->mapped = memremap(channel->physaddr, size, MEMREMAP_WB);
 	if (!channel->mapped) {
 		release_mem_region(channel->physaddr, size);
 		goto err_destroy_channel;
 	}
-
 	channel->nbytes = size;
 	guid_copy(&channel->guid, guid);
 	return channel;
@@ -442,18 +415,6 @@ err_destroy_channel:
 	return NULL;
 }
 
-struct visorchannel *visorchannel_create(u64 physaddr, gfp_t gfp,
-					 const guid_t *guid)
-{
-	return visorchannel_create_guts(physaddr, gfp, guid, false);
-}
-
-struct visorchannel *visorchannel_create_with_lock(u64 physaddr, gfp_t gfp,
-						   const guid_t *guid)
-{
-	return visorchannel_create_guts(physaddr, gfp, guid, true);
-}
-
 /**
  * visorchannel_signalinsert() - inserts a message into the designated
  *                               channel/queue
diff --git a/drivers/staging/unisys/visorbus/visorchipset.c b/drivers/staging/unisys/visorbus/visorchipset.c
index 74cce4f1a7bd..fed554a43151 100644
--- a/drivers/staging/unisys/visorbus/visorchipset.c
+++ b/drivers/staging/unisys/visorbus/visorchipset.c
@@ -27,8 +27,8 @@ static const guid_t visor_vhba_channel_guid = VISOR_VHBA_CHANNEL_GUID;
 static const guid_t visor_siovm_guid = VISOR_SIOVM_GUID;
 static const guid_t visor_controlvm_channel_guid = VISOR_CONTROLVM_CHANNEL_GUID;
 
-#define POLLJIFFIES_CONTROLVMCHANNEL_FAST 1
-#define POLLJIFFIES_CONTROLVMCHANNEL_SLOW 100
+#define POLLJIFFIES_CONTROLVM_FAST 1
+#define POLLJIFFIES_CONTROLVM_SLOW 100
 
 #define MAX_CONTROLVM_PAYLOAD_BYTES (1024 * 128)
 
@@ -128,7 +128,6 @@ static ssize_t toolaction_show(struct device *dev,
 				&tool_action, sizeof(u8));
 	if (err)
 		return err;
-
 	return sprintf(buf, "%u\n", tool_action);
 }
 
@@ -141,7 +140,6 @@ static ssize_t toolaction_store(struct device *dev,
 
 	if (kstrtou8(buf, 10, &tool_action))
 		return -EINVAL;
-
 	err = visorchannel_write(chipset_dev->controlvm_channel,
 				 offsetof(struct visor_controlvm_channel,
 					  tool_action),
@@ -178,7 +176,6 @@ static ssize_t boottotool_store(struct device *dev,
 
 	if (kstrtoint(buf, 10, &val))
 		return -EINVAL;
-
 	efi_visor_indication.boot_to_tool = val;
 	err = visorchannel_write(chipset_dev->controlvm_channel,
 				 offsetof(struct visor_controlvm_channel,
@@ -214,7 +211,6 @@ static ssize_t error_store(struct device *dev, struct device_attribute *attr,
 
 	if (kstrtou32(buf, 10, &error))
 		return -EINVAL;
-
 	err = visorchannel_write(chipset_dev->controlvm_channel,
 				 offsetof(struct visor_controlvm_channel,
 					  installation_error),
@@ -237,7 +233,6 @@ static ssize_t textid_show(struct device *dev, struct device_attribute *attr,
 				&text_id, sizeof(u32));
 	if (err)
 		return err;
-
 	return sprintf(buf, "%u\n", text_id);
 }
 
@@ -249,7 +244,6 @@ static ssize_t textid_store(struct device *dev, struct device_attribute *attr,
 
 	if (kstrtou32(buf, 10, &text_id))
 		return -EINVAL;
-
 	err = visorchannel_write(chipset_dev->controlvm_channel,
 				 offsetof(struct visor_controlvm_channel,
 					  installation_text_id),
@@ -272,7 +266,6 @@ static ssize_t remaining_steps_show(struct device *dev,
 				&remaining_steps, sizeof(u16));
 	if (err)
 		return err;
-
 	return sprintf(buf, "%hu\n", remaining_steps);
 }
 
@@ -285,7 +278,6 @@ static ssize_t remaining_steps_store(struct device *dev,
 
 	if (kstrtou16(buf, 10, &remaining_steps))
 		return -EINVAL;
-
 	err = visorchannel_write(chipset_dev->controlvm_channel,
 				 offsetof(struct visor_controlvm_channel,
 					  installation_remaining_steps),
@@ -296,43 +288,6 @@ static ssize_t remaining_steps_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(remaining_steps);
 
-struct visor_busdev {
-	u32 bus_no;
-	u32 dev_no;
-};
-
-static int match_visorbus_dev_by_id(struct device *dev, void *data)
-{
-	struct visor_device *vdev = to_visor_device(dev);
-	struct visor_busdev *id = data;
-
-	if ((vdev->chipset_bus_no == id->bus_no) &&
-	    (vdev->chipset_dev_no == id->dev_no))
-		return 1;
-
-	return 0;
-}
-
-struct visor_device *visorbus_get_device_by_id(u32 bus_no, u32 dev_no,
-					       struct visor_device *from)
-{
-	struct device *dev;
-	struct device *dev_start = NULL;
-	struct visor_device *vdev = NULL;
-	struct visor_busdev id = {
-		.bus_no = bus_no,
-		.dev_no = dev_no
-	};
-
-	if (from)
-		dev_start = &from->device;
-	dev = bus_find_device(&visorbus_type, dev_start, (void *)&id,
-			      match_visorbus_dev_by_id);
-	if (dev)
-		vdev = to_visor_device(dev);
-	return vdev;
-}
-
 static void controlvm_init_response(struct controlvm_message *msg,
 				    struct controlvm_message_header *msg_hdr,
 				    int response)
@@ -374,18 +329,13 @@ static int chipset_init(struct controlvm_message *inmsg)
 		goto out_respond;
 	}
 	chipset_inited = 1;
-
 	/*
 	 * Set features to indicate we support parahotplug (if Command also
-	 * supports it).
+	 * supports it). Set the "reply" bit so Command knows this is a
+	 * features-aware driver.
 	 */
 	features = inmsg->cmd.init_chipset.features &
 		   VISOR_CHIPSET_FEATURE_PARA_HOTPLUG;
-
-	/*
-	 * Set the "reply" bit so Command knows this is a features-aware
-	 * driver.
-	 */
 	features |= VISOR_CHIPSET_FEATURE_REPLY;
 
 out_respond:
@@ -396,20 +346,17 @@ out_respond:
 }
 
 static int controlvm_respond(struct controlvm_message_header *msg_hdr,
-			     int response,
-			     struct visor_segment_state *state)
+			     int response, struct visor_segment_state *state)
 {
 	struct controlvm_message outmsg;
 
 	controlvm_init_response(&outmsg, msg_hdr, response);
 	if (outmsg.hdr.flags.test_message == 1)
 		return -EINVAL;
-
 	if (state) {
 		outmsg.cmd.device_change_state.state = *state;
 		outmsg.cmd.device_change_state.flags.phys_device = 1;
 	}
-
 	return visorchannel_signalinsert(chipset_dev->controlvm_channel,
 					 CONTROLVM_QUEUE_REQUEST, &outmsg);
 }
@@ -435,13 +382,11 @@ static int save_crash_message(struct controlvm_message *msg,
 			"failed to read message count\n");
 		return err;
 	}
-
 	if (local_crash_msg_count != CONTROLVM_CRASHMSG_MAX) {
 		dev_err(&chipset_dev->acpi_device->dev,
 			"invalid number of messages\n");
 		return -EIO;
 	}
-
 	err = visorchannel_read(chipset_dev->controlvm_channel,
 				offsetof(struct visor_controlvm_channel,
 					 saved_crash_message_offset),
@@ -451,13 +396,11 @@ static int save_crash_message(struct controlvm_message *msg,
 			"failed to read offset\n");
 		return err;
 	}
-
 	switch (cr_type) {
 	case CRASH_DEV:
 		local_crash_msg_offset += sizeof(struct controlvm_message);
 		err = visorchannel_write(chipset_dev->controlvm_channel,
-					 local_crash_msg_offset,
-					 msg,
+					 local_crash_msg_offset, msg,
 					 sizeof(struct controlvm_message));
 		if (err) {
 			dev_err(&chipset_dev->acpi_device->dev,
@@ -467,8 +410,7 @@ static int save_crash_message(struct controlvm_message *msg,
 		break;
 	case CRASH_BUS:
 		err = visorchannel_write(chipset_dev->controlvm_channel,
-					 local_crash_msg_offset,
-					 msg,
+					 local_crash_msg_offset, msg,
 					 sizeof(struct controlvm_message));
 		if (err) {
 			dev_err(&chipset_dev->acpi_device->dev,
@@ -488,33 +430,25 @@ static int controlvm_responder(enum controlvm_id cmd_id,
 			       struct controlvm_message_header *pending_msg_hdr,
 			       int response)
 {
-	if (!pending_msg_hdr)
-		return -EIO;
-
 	if (pending_msg_hdr->id != (u32)cmd_id)
 		return -EINVAL;
 
 	return controlvm_respond(pending_msg_hdr, response, NULL);
 }
 
-static int device_changestate_responder(
-				enum controlvm_id cmd_id,
-				struct visor_device *p, int response,
-				struct visor_segment_state response_state)
+static int device_changestate_responder(enum controlvm_id cmd_id,
+					struct visor_device *p, int response,
+					struct visor_segment_state state)
 {
 	struct controlvm_message outmsg;
 
-	if (!p->pending_msg_hdr)
-		return -EIO;
 	if (p->pending_msg_hdr->id != cmd_id)
 		return -EINVAL;
 
 	controlvm_init_response(&outmsg, p->pending_msg_hdr, response);
-
 	outmsg.cmd.device_change_state.bus_no = p->chipset_bus_no;
 	outmsg.cmd.device_change_state.dev_no = p->chipset_dev_no;
-	outmsg.cmd.device_change_state.state = response_state;
-
+	outmsg.cmd.device_change_state.state = state;
 	return visorchannel_signalinsert(chipset_dev->controlvm_channel,
 					 CONTROLVM_QUEUE_REQUEST, &outmsg);
 }
@@ -522,64 +456,55 @@ static int device_changestate_responder(
 static int visorbus_create(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	struct controlvm_message_header *pmsg_hdr = NULL;
+	struct controlvm_message_header *pmsg_hdr;
 	u32 bus_no = cmd->create_bus.bus_no;
 	struct visor_device *bus_info;
 	struct visorchannel *visorchannel;
 	int err;
 
 	bus_info = visorbus_get_device_by_id(bus_no, BUS_ROOT_DEVICE, NULL);
-	if (bus_info && (bus_info->state.created == 1)) {
+	if (bus_info && bus_info->state.created == 1) {
 		dev_err(&chipset_dev->acpi_device->dev,
 			"failed %s: already exists\n", __func__);
 		err = -EEXIST;
 		goto err_respond;
 	}
-
 	bus_info = kzalloc(sizeof(*bus_info), GFP_KERNEL);
 	if (!bus_info) {
 		err = -ENOMEM;
 		goto err_respond;
 	}
-
 	INIT_LIST_HEAD(&bus_info->list_all);
 	bus_info->chipset_bus_no = bus_no;
 	bus_info->chipset_dev_no = BUS_ROOT_DEVICE;
-
 	if (guid_equal(&cmd->create_bus.bus_inst_guid, &visor_siovm_guid)) {
 		err = save_crash_message(inmsg, CRASH_BUS);
 		if (err)
 			goto err_free_bus_info;
 	}
-
 	if (inmsg->hdr.flags.response_expected == 1) {
-		pmsg_hdr = kzalloc(sizeof(*pmsg_hdr),
-				   GFP_KERNEL);
+		pmsg_hdr = kzalloc(sizeof(*pmsg_hdr), GFP_KERNEL);
 		if (!pmsg_hdr) {
 			err = -ENOMEM;
 			goto err_free_bus_info;
 		}
-
 		memcpy(pmsg_hdr, &inmsg->hdr,
 		       sizeof(struct controlvm_message_header));
 		bus_info->pending_msg_hdr = pmsg_hdr;
 	}
-
 	visorchannel = visorchannel_create(cmd->create_bus.channel_addr,
 					   GFP_KERNEL,
-					   &cmd->create_bus.bus_data_type_guid);
+					   &cmd->create_bus.bus_data_type_guid,
+					   false);
 	if (!visorchannel) {
 		err = -ENOMEM;
 		goto err_free_pending_msg;
 	}
-
 	bus_info->visorchannel = visorchannel;
-
 	/* Response will be handled by visorbus_create_instance on success */
 	err = visorbus_create_instance(bus_info);
 	if (err)
 		goto err_destroy_channel;
-
 	return 0;
 
 err_destroy_channel:
@@ -599,9 +524,8 @@ err_respond:
 
 static int visorbus_destroy(struct controlvm_message *inmsg)
 {
-	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	struct controlvm_message_header *pmsg_hdr = NULL;
-	u32 bus_no = cmd->destroy_bus.bus_no;
+	struct controlvm_message_header *pmsg_hdr;
+	u32 bus_no = inmsg->cmd.destroy_bus.bus_no;
 	struct visor_device *bus_info;
 	int err;
 
@@ -625,12 +549,10 @@ static int visorbus_destroy(struct controlvm_message *inmsg)
 			err = -ENOMEM;
 			goto err_respond;
 		}
-
 		memcpy(pmsg_hdr, &inmsg->hdr,
 		       sizeof(struct controlvm_message_header));
 		bus_info->pending_msg_hdr = pmsg_hdr;
 	}
-
 	/* Response will be handled by visorbus_remove_instance */
 	visorbus_remove_instance(bus_info);
 	return 0;
@@ -646,51 +568,33 @@ static const guid_t *parser_id_get(struct parser_context *ctx)
 	return &ctx->data.id;
 }
 
-static void *parser_string_get(struct parser_context *ctx)
+static void *parser_string_get(u8 *pscan, int nscan)
 {
-	u8 *pscan;
-	unsigned long nscan;
 	int value_length;
 	void *value;
-	int i;
 
-	pscan = ctx->curr;
-	if (!pscan)
-		return NULL;
-	nscan = ctx->bytes_remaining;
 	if (nscan == 0)
 		return NULL;
 
-	for (i = 0, value_length = -1; i < nscan; i++)
-		if (pscan[i] == '\0') {
-			value_length = i;
-			break;
-		}
-	/* '\0' was not included in the length */
-	if (value_length < 0)
-		value_length = nscan;
-
-	value = kmalloc(value_length + 1, GFP_KERNEL);
+	value_length = strnlen(pscan, nscan);
+	value = kzalloc(value_length + 1, GFP_KERNEL);
 	if (!value)
 		return NULL;
 	if (value_length > 0)
 		memcpy(value, pscan, value_length);
-	((u8 *)(value))[value_length] = '\0';
 	return value;
 }
 
 static void *parser_name_get(struct parser_context *ctx)
 {
-	struct visor_controlvm_parameters_header *phdr = NULL;
+	struct visor_controlvm_parameters_header *phdr;
 
 	phdr = &ctx->data;
-
 	if (phdr->name_offset + phdr->name_length > ctx->param_bytes)
 		return NULL;
-
 	ctx->curr = (char *)&phdr + phdr->name_offset;
 	ctx->bytes_remaining = phdr->name_length;
-	return parser_string_get(ctx);
+	return parser_string_get(ctx->curr, phdr->name_length);
 }
 
 static int visorbus_configure(struct controlvm_message *inmsg,
@@ -715,20 +619,16 @@ static int visorbus_configure(struct controlvm_message *inmsg,
 		err = -EIO;
 		goto err_respond;
 	}
-
-	err = visorchannel_set_clientpartition
-		(bus_info->visorchannel,
-		 cmd->configure_bus.guest_handle);
+	err = visorchannel_set_clientpartition(bus_info->visorchannel,
+					       cmd->configure_bus.guest_handle);
 	if (err)
 		goto err_respond;
-
 	if (parser_ctx) {
 		const guid_t *partition_guid = parser_id_get(parser_ctx);
 
 		guid_copy(&bus_info->partition_guid, partition_guid);
 		bus_info->name = parser_name_get(parser_ctx);
 	}
-
 	if (inmsg->hdr.flags.response_expected == 1)
 		controlvm_responder(inmsg->hdr.id, &inmsg->hdr, err);
 	return 0;
@@ -744,10 +644,10 @@ err_respond:
 static int visorbus_device_create(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	struct controlvm_message_header *pmsg_hdr = NULL;
+	struct controlvm_message_header *pmsg_hdr;
 	u32 bus_no = cmd->create_device.bus_no;
 	u32 dev_no = cmd->create_device.dev_no;
-	struct visor_device *dev_info = NULL;
+	struct visor_device *dev_info;
 	struct visor_device *bus_info;
 	struct visorchannel *visorchannel;
 	int err;
@@ -765,9 +665,8 @@ static int visorbus_device_create(struct controlvm_message *inmsg)
 		err = -EINVAL;
 		goto err_respond;
 	}
-
 	dev_info = visorbus_get_device_by_id(bus_no, dev_no, NULL);
-	if (dev_info && (dev_info->state.created == 1)) {
+	if (dev_info && dev_info->state.created == 1) {
 		dev_err(&chipset_dev->acpi_device->dev,
 			"failed to get bus by id: %d/%d\n", bus_no, dev_no);
 		err = -EEXIST;
@@ -779,16 +678,14 @@ static int visorbus_device_create(struct controlvm_message *inmsg)
 		err = -ENOMEM;
 		goto err_respond;
 	}
-
 	dev_info->chipset_bus_no = bus_no;
 	dev_info->chipset_dev_no = dev_no;
 	guid_copy(&dev_info->inst, &cmd->create_device.dev_inst_guid);
 	dev_info->device.parent = &bus_info->device;
-
-	visorchannel =
-	       visorchannel_create_with_lock(cmd->create_device.channel_addr,
-					     GFP_KERNEL,
-					     &cmd->create_device.data_type_guid);
+	visorchannel = visorchannel_create(cmd->create_device.channel_addr,
+					   GFP_KERNEL,
+					   &cmd->create_device.data_type_guid,
+					   true);
 	if (!visorchannel) {
 		dev_err(&chipset_dev->acpi_device->dev,
 			"failed to create visorchannel: %d/%d\n",
@@ -797,20 +694,20 @@ static int visorbus_device_create(struct controlvm_message *inmsg)
 		goto err_free_dev_info;
 	}
 	dev_info->visorchannel = visorchannel;
-	guid_copy(&dev_info->channel_type_guid, &cmd->create_device.data_type_guid);
-	if (guid_equal(&cmd->create_device.data_type_guid, &visor_vhba_channel_guid)) {
+	guid_copy(&dev_info->channel_type_guid,
+		  &cmd->create_device.data_type_guid);
+	if (guid_equal(&cmd->create_device.data_type_guid,
+		       &visor_vhba_channel_guid)) {
 		err = save_crash_message(inmsg, CRASH_DEV);
 		if (err)
 			goto err_destroy_visorchannel;
 	}
-
 	if (inmsg->hdr.flags.response_expected == 1) {
 		pmsg_hdr = kzalloc(sizeof(*pmsg_hdr), GFP_KERNEL);
 		if (!pmsg_hdr) {
 			err = -ENOMEM;
 			goto err_destroy_visorchannel;
 		}
-
 		memcpy(pmsg_hdr, &inmsg->hdr,
 		       sizeof(struct controlvm_message_header));
 		dev_info->pending_msg_hdr = pmsg_hdr;
@@ -837,7 +734,7 @@ err_respond:
 static int visorbus_device_changestate(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	struct controlvm_message_header *pmsg_hdr = NULL;
+	struct controlvm_message_header *pmsg_hdr;
 	u32 bus_no = cmd->device_change_state.bus_no;
 	u32 dev_no = cmd->device_change_state.dev_no;
 	struct visor_segment_state state = cmd->device_change_state.state;
@@ -858,18 +755,17 @@ static int visorbus_device_changestate(struct controlvm_message *inmsg)
 		err = -EIO;
 		goto err_respond;
 	}
+
 	if (inmsg->hdr.flags.response_expected == 1) {
 		pmsg_hdr = kzalloc(sizeof(*pmsg_hdr), GFP_KERNEL);
 		if (!pmsg_hdr) {
 			err = -ENOMEM;
 			goto err_respond;
 		}
-
 		memcpy(pmsg_hdr, &inmsg->hdr,
 		       sizeof(struct controlvm_message_header));
 		dev_info->pending_msg_hdr = pmsg_hdr;
 	}
-
 	if (state.alive == segment_state_running.alive &&
 	    state.operating == segment_state_running.operating)
 		/* Response will be sent from visorchipset_device_resume */
@@ -884,7 +780,6 @@ static int visorbus_device_changestate(struct controlvm_message *inmsg)
 		err = visorchipset_device_pause(dev_info);
 	if (err)
 		goto err_respond;
-
 	return 0;
 
 err_respond:
@@ -897,7 +792,7 @@ err_respond:
 static int visorbus_device_destroy(struct controlvm_message *inmsg)
 {
 	struct controlvm_message_packet *cmd = &inmsg->cmd;
-	struct controlvm_message_header *pmsg_hdr = NULL;
+	struct controlvm_message_header *pmsg_hdr;
 	u32 bus_no = cmd->destroy_device.bus_no;
 	u32 dev_no = cmd->destroy_device.dev_no;
 	struct visor_device *dev_info;
@@ -928,7 +823,6 @@ static int visorbus_device_destroy(struct controlvm_message *inmsg)
 		       sizeof(struct controlvm_message_header));
 		dev_info->pending_msg_hdr = pmsg_hdr;
 	}
-
 	kfree(dev_info->name);
 	remove_visor_device(dev_info);
 	return 0;
@@ -995,11 +889,9 @@ static struct parahotplug_request *parahotplug_request_create(
 	req = kmalloc(sizeof(*req), GFP_KERNEL);
 	if (!req)
 		return NULL;
-
 	req->id = parahotplug_next_id();
 	req->expiration = parahotplug_next_expiration();
 	req->msg = *msg;
-
 	return req;
 }
 
@@ -1031,13 +923,12 @@ static int parahotplug_request_complete(int id, u16 active)
 {
 	struct list_head *pos;
 	struct list_head *tmp;
+	struct parahotplug_request *req;
 
 	spin_lock(&parahotplug_request_list_lock);
-
 	/* Look for a request matching "id". */
 	list_for_each_safe(pos, tmp, &parahotplug_request_list) {
-		struct parahotplug_request *req =
-		    list_entry(pos, struct parahotplug_request, list);
+		req = list_entry(pos, struct parahotplug_request, list);
 		if (req->id == id) {
 			/*
 			 * Found a match. Remove it from the list and
@@ -1054,7 +945,6 @@ static int parahotplug_request_complete(int id, u16 active)
 			return 0;
 		}
 	}
-
 	spin_unlock(&parahotplug_request_list_lock);
 	return -EINVAL;
 }
@@ -1081,7 +971,6 @@ static ssize_t devicedisabled_store(struct device *dev,
 
 	if (kstrtouint(buf, 10, &id))
 		return -EINVAL;
-
 	err = parahotplug_request_complete(id, 0);
 	if (err < 0)
 		return err;
@@ -1110,7 +999,6 @@ static ssize_t deviceenabled_store(struct device *dev,
 
 	if (kstrtouint(buf, 10, &id))
 		return -EINVAL;
-
 	parahotplug_request_complete(id, 1);
 	return count;
 }
@@ -1158,9 +1046,9 @@ static int parahotplug_request_kickoff(struct parahotplug_request *req)
 {
 	struct controlvm_message_packet *cmd = &req->msg.cmd;
 	char env_cmd[40], env_id[40], env_state[40], env_bus[40], env_dev[40],
-	    env_func[40];
-	char *envp[] = {
-		env_cmd, env_id, env_state, env_bus, env_dev, env_func, NULL
+	     env_func[40];
+	char *envp[] = { env_cmd, env_id, env_state, env_bus, env_dev,
+			 env_func, NULL
 	};
 
 	sprintf(env_cmd, "VISOR_PARAHOTPLUG=1");
@@ -1173,7 +1061,6 @@ static int parahotplug_request_kickoff(struct parahotplug_request *req)
 		cmd->device_change_state.dev_no >> 3);
 	sprintf(env_func, "VISOR_PARAHOTPLUG_FUNCTION=%d",
 		cmd->device_change_state.dev_no & 0x7);
-
 	return kobject_uevent_env(&chipset_dev->acpi_device->dev.kobj,
 				  KOBJ_CHANGE, envp);
 }
@@ -1191,7 +1078,6 @@ static int parahotplug_process_message(struct controlvm_message *inmsg)
 	req = parahotplug_request_create(inmsg);
 	if (!req)
 		return -ENOMEM;
-
 	/*
 	 * For enable messages, just respond with success right away, we don't
 	 * need to wait to see if the enable was successful.
@@ -1205,7 +1091,6 @@ static int parahotplug_process_message(struct controlvm_message *inmsg)
 		parahotplug_request_destroy(req);
 		return 0;
 	}
-
 	/*
 	 * For disable messages, add the request to the request list before
 	 * kicking off the udev script. It won't get responded to until the
@@ -1214,7 +1099,6 @@ static int parahotplug_process_message(struct controlvm_message *inmsg)
 	spin_lock(&parahotplug_request_list_lock);
 	list_add_tail(&req->list, &parahotplug_request_list);
 	spin_unlock(&parahotplug_request_list_lock);
-
 	err = parahotplug_request_kickoff(req);
 	if (err)
 		goto err_respond;
@@ -1237,12 +1121,9 @@ static int chipset_ready_uevent(struct controlvm_message_header *msg_hdr)
 {
 	int res;
 
-	res = kobject_uevent(&chipset_dev->acpi_device->dev.kobj,
-			     KOBJ_ONLINE);
-
+	res = kobject_uevent(&chipset_dev->acpi_device->dev.kobj, KOBJ_ONLINE);
 	if (msg_hdr->flags.response_expected)
 		controlvm_respond(msg_hdr, res, NULL);
-
 	return res;
 }
 
@@ -1262,10 +1143,8 @@ static int chipset_selftest_uevent(struct controlvm_message_header *msg_hdr)
 	sprintf(env_selftest, "SPARSP_SELFTEST=%d", 1);
 	res = kobject_uevent_env(&chipset_dev->acpi_device->dev.kobj,
 				 KOBJ_CHANGE, envp);
-
 	if (msg_hdr->flags.response_expected)
 		controlvm_respond(msg_hdr, res, NULL);
-
 	return res;
 }
 
@@ -1279,11 +1158,10 @@ static int chipset_selftest_uevent(struct controlvm_message_header *msg_hdr)
 static int chipset_notready_uevent(struct controlvm_message_header *msg_hdr)
 {
 	int res = kobject_uevent(&chipset_dev->acpi_device->dev.kobj,
-			     KOBJ_OFFLINE);
+				 KOBJ_OFFLINE);
 
 	if (msg_hdr->flags.response_expected)
 		controlvm_respond(msg_hdr, res, NULL);
-
 	return res;
 }
 
@@ -1296,17 +1174,15 @@ static int unisys_vmcall(unsigned long tuple, unsigned long param)
 
 	reg_ebx = param & 0xFFFFFFFF;
 	reg_ecx = param >> 32;
-
 	cpuid(0x00000001, &cpuid_eax, &cpuid_ebx, &cpuid_ecx, &cpuid_edx);
 	if (!(cpuid_ecx & 0x80000000))
 		return -EPERM;
-
 	__asm__ __volatile__(".byte 0x00f, 0x001, 0x0c1" : "=a"(result) :
-		"a"(tuple), "b"(reg_ebx), "c"(reg_ecx));
+			     "a"(tuple), "b"(reg_ebx), "c"(reg_ecx));
 	if (result)
 		goto error;
-
 	return 0;
+
 /* Need to convert from VMCALL error codes to Linux */
 error:
 	switch (result) {
@@ -1330,8 +1206,8 @@ static int controlvm_channel_create(struct visorchipset_device *dev)
 	if (err)
 		return err;
 	addr = dev->controlvm_params.address;
-	chan = visorchannel_create_with_lock(addr, GFP_KERNEL,
-					     &visor_controlvm_channel_guid);
+	chan = visorchannel_create(addr, GFP_KERNEL,
+				   &visor_controlvm_channel_guid, true);
 	if (!chan)
 		return -ENOMEM;
 	dev->controlvm_channel = chan;
@@ -1350,9 +1226,7 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 	msg.hdr.id = CONTROLVM_CHIPSET_INIT;
 	msg.cmd.init_chipset.bus_count = 23;
 	msg.cmd.init_chipset.switch_count = 0;
-
 	chipset_init(&msg);
-
 	/* get saved message count */
 	if (visorchannel_read(chipset_dev->controlvm_channel,
 			      offsetof(struct visor_controlvm_channel,
@@ -1362,13 +1236,10 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 			"failed to read channel\n");
 		return;
 	}
-
 	if (local_crash_msg_count != CONTROLVM_CRASHMSG_MAX) {
-		dev_err(&chipset_dev->acpi_device->dev,
-			"invalid count\n");
+		dev_err(&chipset_dev->acpi_device->dev, "invalid count\n");
 		return;
 	}
-
 	/* get saved crash message offset */
 	if (visorchannel_read(chipset_dev->controlvm_channel,
 			      offsetof(struct visor_controlvm_channel,
@@ -1378,7 +1249,6 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 			"failed to read channel\n");
 		return;
 	}
-
 	/* read create device message for storage bus offset */
 	if (visorchannel_read(chipset_dev->controlvm_channel,
 			      local_crash_msg_offset,
@@ -1388,7 +1258,6 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 			"failed to read channel\n");
 		return;
 	}
-
 	/* read create device message for storage device */
 	if (visorchannel_read(chipset_dev->controlvm_channel,
 			      local_crash_msg_offset +
@@ -1399,7 +1268,6 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 			"failed to read channel\n");
 		return;
 	}
-
 	/* reuse IOVM create bus message */
 	if (!local_crash_bus_msg.cmd.create_bus.channel_addr) {
 		dev_err(&chipset_dev->acpi_device->dev,
@@ -1407,7 +1275,6 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 		return;
 	}
 	visorbus_create(&local_crash_bus_msg);
-
 	/* reuse create device message for storage device */
 	if (!local_crash_dev_msg.cmd.create_device.channel_addr) {
 		dev_err(&chipset_dev->acpi_device->dev,
@@ -1420,8 +1287,10 @@ static void setup_crash_devices_work_queue(struct work_struct *work)
 void visorbus_response(struct visor_device *bus_info, int response,
 		       int controlvm_id)
 {
-	controlvm_responder(controlvm_id, bus_info->pending_msg_hdr, response);
+	if (!bus_info->pending_msg_hdr)
+		return;
 
+	controlvm_responder(controlvm_id, bus_info->pending_msg_hdr, response);
 	kfree(bus_info->pending_msg_hdr);
 	bus_info->pending_msg_hdr = NULL;
 }
@@ -1430,9 +1299,11 @@ void visorbus_device_changestate_response(struct visor_device *dev_info,
 					  int response,
 					  struct visor_segment_state state)
 {
-	device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE,
-				     dev_info, response, state);
+	if (!dev_info->pending_msg_hdr)
+		return;
 
+	device_changestate_responder(CONTROLVM_DEVICE_CHANGESTATE, dev_info,
+				     response, state);
 	kfree(dev_info->pending_msg_hdr);
 	dev_info->pending_msg_hdr = NULL;
 }
@@ -1451,12 +1322,11 @@ static struct parser_context *parser_init_stream(u64 addr, u32 bytes,
 	void *mapping;
 
 	*retry = false;
-
 	/* alloc an extra byte to ensure payload is \0 terminated */
 	allocbytes = bytes + 1 + (sizeof(struct parser_context) -
 		     sizeof(struct visor_controlvm_parameters_header));
-	if ((chipset_dev->controlvm_payload_bytes_buffered + bytes)
-	    > MAX_CONTROLVM_PAYLOAD_BYTES) {
+	if ((chipset_dev->controlvm_payload_bytes_buffered + bytes) >
+	     MAX_CONTROLVM_PAYLOAD_BYTES) {
 		*retry = true;
 		return NULL;
 	}
@@ -1465,7 +1335,6 @@ static struct parser_context *parser_init_stream(u64 addr, u32 bytes,
 		*retry = true;
 		return NULL;
 	}
-
 	ctx->allocbytes = allocbytes;
 	ctx->param_bytes = bytes;
 	mapping = memremap(addr, bytes, MEMREMAP_WB);
@@ -1475,7 +1344,6 @@ static struct parser_context *parser_init_stream(u64 addr, u32 bytes,
 	memunmap(mapping);
 	ctx->byte_stream = true;
 	chipset_dev->controlvm_payload_bytes_buffered += ctx->param_bytes;
-
 	return ctx;
 
 err_finish_ctx:
@@ -1508,14 +1376,13 @@ static int handle_command(struct controlvm_message inmsg, u64 channel_addr)
 	/* create parsing context if necessary */
 	parm_addr = channel_addr + inmsg.hdr.payload_vm_offset;
 	parm_bytes = inmsg.hdr.payload_bytes;
-
 	/*
 	 * Parameter and channel addresses within test messages actually lie
 	 * within our OS-controlled memory. We need to know that, because it
 	 * makes a difference in how we compute the virtual address.
 	 */
 	if (parm_bytes) {
-		bool retry = false;
+		bool retry;
 
 		parser_ctx = parser_init_stream(parm_addr, parm_bytes, &retry);
 		if (!parser_ctx && retry)
@@ -1526,7 +1393,6 @@ static int handle_command(struct controlvm_message inmsg, u64 channel_addr)
 					CONTROLVM_QUEUE_ACK, &ackmsg);
 	if (err)
 		return err;
-
 	switch (inmsg.hdr.id) {
 	case CONTROLVM_CHIPSET_INIT:
 		err = chipset_init(&inmsg);
@@ -1580,7 +1446,6 @@ static int handle_command(struct controlvm_message inmsg, u64 channel_addr)
 					  -CONTROLVM_RESP_ID_UNKNOWN, NULL);
 		break;
 	}
-
 	if (parser_ctx) {
 		parser_done(parser_ctx);
 		parser_ctx = NULL;
@@ -1599,14 +1464,13 @@ static int handle_command(struct controlvm_message inmsg, u64 channel_addr)
 static int read_controlvm_event(struct controlvm_message *msg)
 {
 	int err = visorchannel_signalremove(chipset_dev->controlvm_channel,
-					CONTROLVM_QUEUE_EVENT, msg);
+					    CONTROLVM_QUEUE_EVENT, msg);
+
 	if (err)
 		return err;
-
 	/* got a message */
 	if (msg->hdr.flags.test_message == 1)
 		return -EINVAL;
-
 	return 0;
 }
 
@@ -1620,14 +1484,12 @@ static void parahotplug_process_list(void)
 	struct list_head *tmp;
 
 	spin_lock(&parahotplug_request_list_lock);
-
 	list_for_each_safe(pos, tmp, &parahotplug_request_list) {
 		struct parahotplug_request *req =
 		    list_entry(pos, struct parahotplug_request, list);
 
 		if (!time_after_eq(jiffies, req->expiration))
 			continue;
-
 		list_del(pos);
 		if (req->msg.hdr.flags.response_expected)
 			controlvm_respond(
@@ -1636,7 +1498,6 @@ static void parahotplug_process_list(void)
 				&req->msg.cmd.device_change_state.state);
 		parahotplug_request_destroy(req);
 	}
-
 	spin_unlock(&parahotplug_request_list_lock);
 }
 
@@ -1652,10 +1513,8 @@ static void controlvm_periodic_work(struct work_struct *work)
 						CONTROLVM_QUEUE_RESPONSE,
 						&inmsg);
 	} while ((!err) && (++count < CONTROLVM_MESSAGE_MAX));
-
 	if (err != -EAGAIN)
 		goto schedule_out;
-
 	if (chipset_dev->controlvm_pending_msg_valid) {
 		/*
 		 * we throttled processing of a prior msg, so try to process
@@ -1667,7 +1526,6 @@ static void controlvm_periodic_work(struct work_struct *work)
 	} else {
 		err = read_controlvm_event(&inmsg);
 	}
-
 	while (!err) {
 		chipset_dev->most_recent_message_jiffies = jiffies;
 		err = handle_command(inmsg,
@@ -1681,7 +1539,6 @@ static void controlvm_periodic_work(struct work_struct *work)
 
 		err = read_controlvm_event(&inmsg);
 	}
-
 	/* parahotplug_worker */
 	parahotplug_process_list();
 
@@ -1697,17 +1554,12 @@ schedule_out:
 		 * it's been longer than MIN_IDLE_SECONDS since we processed
 		 * our last controlvm message; slow down the polling
 		 */
-		if (chipset_dev->poll_jiffies !=
-					      POLLJIFFIES_CONTROLVMCHANNEL_SLOW)
-			chipset_dev->poll_jiffies =
-					      POLLJIFFIES_CONTROLVMCHANNEL_SLOW;
+		if (chipset_dev->poll_jiffies != POLLJIFFIES_CONTROLVM_SLOW)
+			chipset_dev->poll_jiffies = POLLJIFFIES_CONTROLVM_SLOW;
 	} else {
-		if (chipset_dev->poll_jiffies !=
-					      POLLJIFFIES_CONTROLVMCHANNEL_FAST)
-			chipset_dev->poll_jiffies =
-					      POLLJIFFIES_CONTROLVMCHANNEL_FAST;
+		if (chipset_dev->poll_jiffies != POLLJIFFIES_CONTROLVM_FAST)
+			chipset_dev->poll_jiffies = POLLJIFFIES_CONTROLVM_FAST;
 	}
-
 	schedule_delayed_work(&chipset_dev->periodic_controlvm_work,
 			      chipset_dev->poll_jiffies);
 }
@@ -1720,20 +1572,16 @@ static int visorchipset_init(struct acpi_device *acpi_device)
 	chipset_dev = kzalloc(sizeof(*chipset_dev), GFP_KERNEL);
 	if (!chipset_dev)
 		goto error;
-
 	err = controlvm_channel_create(chipset_dev);
 	if (err)
 		goto error_free_chipset_dev;
-
 	acpi_device->driver_data = chipset_dev;
 	chipset_dev->acpi_device = acpi_device;
-	chipset_dev->poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
-
+	chipset_dev->poll_jiffies = POLLJIFFIES_CONTROLVM_FAST;
 	err = sysfs_create_groups(&chipset_dev->acpi_device->dev.kobj,
 				  visorchipset_dev_groups);
 	if (err < 0)
 		goto error_destroy_channel;
-
 	controlvm_channel = chipset_dev->controlvm_channel;
 	if (!visor_check_channel(visorchannel_get_header(controlvm_channel),
 				 &chipset_dev->acpi_device->dev,
@@ -1743,7 +1591,6 @@ static int visorchipset_init(struct acpi_device *acpi_device)
 				 VISOR_CONTROLVM_CHANNEL_VERSIONID,
 				 VISOR_CHANNEL_SIGNATURE))
 		goto error_delete_groups;
-
 	/* if booting in a crash kernel */
 	if (is_kdump_kernel())
 		INIT_DELAYED_WORK(&chipset_dev->periodic_controlvm_work,
@@ -1751,16 +1598,13 @@ static int visorchipset_init(struct acpi_device *acpi_device)
 	else
 		INIT_DELAYED_WORK(&chipset_dev->periodic_controlvm_work,
 				  controlvm_periodic_work);
-
 	chipset_dev->most_recent_message_jiffies = jiffies;
-	chipset_dev->poll_jiffies = POLLJIFFIES_CONTROLVMCHANNEL_FAST;
+	chipset_dev->poll_jiffies = POLLJIFFIES_CONTROLVM_FAST;
 	schedule_delayed_work(&chipset_dev->periodic_controlvm_work,
 			      chipset_dev->poll_jiffies);
-
 	err = visorbus_init();
 	if (err < 0)
 		goto error_cancel_work;
-
 	return 0;
 
 error_cancel_work:
@@ -1787,10 +1631,8 @@ static int visorchipset_exit(struct acpi_device *acpi_device)
 	cancel_delayed_work_sync(&chipset_dev->periodic_controlvm_work);
 	sysfs_remove_groups(&chipset_dev->acpi_device->dev.kobj,
 			    visorchipset_dev_groups);
-
 	visorchannel_destroy(chipset_dev->controlvm_channel);
 	kfree(chipset_dev);
-
 	return 0;
 }
 
@@ -1826,22 +1668,20 @@ static __init int visorutil_spar_detect(void)
 	return 0;
 }
 
-static int init_unisys(void)
+static int __init init_unisys(void)
 {
 	int result;
 
 	if (!visorutil_spar_detect())
 		return -ENODEV;
-
 	result = acpi_bus_register_driver(&unisys_acpi_driver);
 	if (result)
 		return -ENODEV;
-
 	pr_info("Unisys Visorchipset Driver Loaded.\n");
 	return 0;
 };
 
-static void exit_unisys(void)
+static void __exit exit_unisys(void)
 {
 	acpi_bus_unregister_driver(&unisys_acpi_driver);
 }
diff --git a/drivers/staging/unisys/visorhba/visorhba_main.c b/drivers/staging/unisys/visorhba/visorhba_main.c
index 419dba89af06..0bcd3acb7b0c 100644
--- a/drivers/staging/unisys/visorhba/visorhba_main.c
+++ b/drivers/staging/unisys/visorhba/visorhba_main.c
@@ -17,6 +17,7 @@
 #include <linux/debugfs.h>
 #include <linux/kthread.h>
 #include <linux/idr.h>
+#include <linux/module.h>
 #include <linux/seq_file.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
@@ -39,7 +40,8 @@ static struct visor_channeltype_descriptor visorhba_channel_types[] = {
 	/* Note that the only channel type we expect to be reported by the
 	 * bus driver is the VISOR_VHBA channel.
 	 */
-	{ VISOR_VHBA_CHANNEL_GUID, "sparvhba" },
+	{ VISOR_VHBA_CHANNEL_GUID, "sparvhba", sizeof(struct channel_header),
+	  VISOR_VHBA_CHANNEL_VERSIONID },
 	{}
 };
 
@@ -818,9 +820,9 @@ static void do_scsi_linuxstat(struct uiscmdrsp *cmdrsp,
 	memcpy(scsicmd->sense_buffer, cmdrsp->scsi.sensebuf, MAX_SENSE_SIZE);
 
 	/* Do not log errors for disk-not-present inquiries */
-	if ((cmdrsp->scsi.cmnd[0] == INQUIRY) &&
+	if (cmdrsp->scsi.cmnd[0] == INQUIRY &&
 	    (host_byte(cmdrsp->scsi.linuxstat) == DID_NO_CONNECT) &&
-	    (cmdrsp->scsi.addlstat == ADDL_SEL_TIMEOUT))
+	    cmdrsp->scsi.addlstat == ADDL_SEL_TIMEOUT)
 		return;
 	/* Okay see what our error_count is here.... */
 	vdisk = scsidev->hostdata;
@@ -868,8 +870,8 @@ static void do_scsi_nolinuxstat(struct uiscmdrsp *cmdrsp,
 	struct visordisk_info *vdisk;
 
 	scsidev = scsicmd->device;
-	if ((cmdrsp->scsi.cmnd[0] == INQUIRY) &&
-	    (cmdrsp->scsi.bufflen >= MIN_INQUIRY_RESULT_LEN)) {
+	if (cmdrsp->scsi.cmnd[0] == INQUIRY &&
+	    cmdrsp->scsi.bufflen >= MIN_INQUIRY_RESULT_LEN) {
 		if (cmdrsp->scsi.no_disk_result == 0)
 			return;
 
diff --git a/drivers/staging/unisys/visorinput/visorinput.c b/drivers/staging/unisys/visorinput/visorinput.c
index 9d8cbc52de8b..450f003743c0 100644
--- a/drivers/staging/unisys/visorinput/visorinput.c
+++ b/drivers/staging/unisys/visorinput/visorinput.c
@@ -23,6 +23,7 @@
 #include <linux/fb.h>
 #include <linux/input.h>
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/uuid.h>
 
 #include "visorbus.h"
@@ -711,8 +712,9 @@ out:
 
 /* GUIDS for all channel types supported by this driver. */
 static struct visor_channeltype_descriptor visorinput_channel_types[] = {
-	{ VISOR_KEYBOARD_CHANNEL_GUID, "keyboard"},
-	{ VISOR_MOUSE_CHANNEL_GUID, "mouse"},
+	{ VISOR_KEYBOARD_CHANNEL_GUID, "keyboard",
+	  sizeof(struct channel_header), 0 },
+	{ VISOR_MOUSE_CHANNEL_GUID, "mouse", sizeof(struct channel_header), 0 },
 	{}
 };
 
diff --git a/drivers/staging/unisys/visornic/visornic_main.c b/drivers/staging/unisys/visornic/visornic_main.c
index dc390eae2960..735d7e5fa86b 100644
--- a/drivers/staging/unisys/visornic/visornic_main.c
+++ b/drivers/staging/unisys/visornic/visornic_main.c
@@ -20,6 +20,7 @@
 
 #include <linux/debugfs.h>
 #include <linux/etherdevice.h>
+#include <linux/module.h>
 #include <linux/netdevice.h>
 #include <linux/kthread.h>
 #include <linux/skbuff.h>
@@ -48,7 +49,8 @@ static struct visor_channeltype_descriptor visornic_channel_types[] = {
 	/* Note that the only channel type we expect to be reported by the
 	 * bus driver is the VISOR_VNIC channel.
 	 */
-	{ VISOR_VNIC_CHANNEL_GUID, "ultravnic" },
+	{ VISOR_VNIC_CHANNEL_GUID, "ultravnic", sizeof(struct channel_header),
+	  VISOR_VNIC_CHANNEL_VERSIONID },
 	{}
 };
 MODULE_DEVICE_TABLE(visorbus, visornic_channel_types);
@@ -899,7 +901,7 @@ static int visornic_xmit(struct sk_buff *skb, struct net_device *netdev)
 		return NETDEV_TX_OK;
 	}
 
-	if ((len < ETH_MIN_PACKET_SIZE) &&
+	if (len < ETH_MIN_PACKET_SIZE &&
 	    ((skb_end_pointer(skb) - skb->data) >= ETH_MIN_PACKET_SIZE)) {
 		/* pad the packet out to minimum size */
 		padlen = ETH_MIN_PACKET_SIZE - len;
@@ -1450,7 +1452,7 @@ static ssize_t info_debugfs_read(struct file *file, char __user *buf,
 	rcu_read_lock();
 	for_each_netdev_rcu(current->nsproxy->net_ns, dev) {
 		/* Only consider netdevs that are visornic, and are open */
-		if ((dev->netdev_ops != &visornic_dev_ops) ||
+		if (dev->netdev_ops != &visornic_dev_ops ||
 		    (!netif_queue_stopped(dev)))
 			continue;
 
@@ -1680,7 +1682,7 @@ static void service_resp_queue(struct uiscmdrsp *cmdrsp,
 			/* only call queue wake if we stopped it */
 			netdev = ((struct sk_buff *)cmdrsp->net.buf)->dev;
 			/* ASSERT netdev == vnicinfo->netdev; */
-			if ((netdev == devdata->netdev) &&
+			if (netdev == devdata->netdev &&
 			    netif_queue_stopped(netdev)) {
 				/* check if we have crossed the lower watermark
 				 * for netif_wake_queue()
diff --git a/drivers/staging/vboxvideo/Makefile b/drivers/staging/vboxvideo/Makefile
index 2d0b3bc7ad73..3f6094aa9cdf 100644
--- a/drivers/staging/vboxvideo/Makefile
+++ b/drivers/staging/vboxvideo/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Iinclude/drm
 
 vboxvideo-y :=  hgsmi_base.o modesetting.o vbva_base.o \
diff --git a/drivers/staging/vboxvideo/vbox_drv.h b/drivers/staging/vboxvideo/vbox_drv.h
index 4b9302703b36..eeac4f0cb2c6 100644
--- a/drivers/staging/vboxvideo/vbox_drv.h
+++ b/drivers/staging/vboxvideo/vbox_drv.h
@@ -137,8 +137,8 @@ struct vbox_connector {
 	char name[32];
 	struct vbox_crtc *vbox_crtc;
 	struct {
-		u16 width;
-		u16 height;
+		u32 width;
+		u32 height;
 		bool disconnected;
 	} mode_hint;
 };
@@ -150,8 +150,8 @@ struct vbox_crtc {
 	unsigned int crtc_id;
 	u32 fb_offset;
 	bool cursor_enabled;
-	u16 x_hint;
-	u16 y_hint;
+	u32 x_hint;
+	u32 y_hint;
 };
 
 struct vbox_encoder {
diff --git a/drivers/staging/vboxvideo/vbox_irq.c b/drivers/staging/vboxvideo/vbox_irq.c
index 3ca8bec62ac4..74abdf02d9fd 100644
--- a/drivers/staging/vboxvideo/vbox_irq.c
+++ b/drivers/staging/vboxvideo/vbox_irq.c
@@ -150,8 +150,8 @@ static void vbox_update_mode_hints(struct vbox_private *vbox)
 
 		disconnected = !(hints->enabled);
 		crtc_id = vbox_conn->vbox_crtc->crtc_id;
-		vbox_conn->mode_hint.width = hints->cx & 0x8fff;
-		vbox_conn->mode_hint.height = hints->cy & 0x8fff;
+		vbox_conn->mode_hint.width = hints->cx;
+		vbox_conn->mode_hint.height = hints->cy;
 		vbox_conn->vbox_crtc->x_hint = hints->dx;
 		vbox_conn->vbox_crtc->y_hint = hints->dy;
 		vbox_conn->mode_hint.disconnected = disconnected;
diff --git a/drivers/staging/vboxvideo/vbox_mode.c b/drivers/staging/vboxvideo/vbox_mode.c
index 257a77830410..6f08dc966719 100644
--- a/drivers/staging/vboxvideo/vbox_mode.c
+++ b/drivers/staging/vboxvideo/vbox_mode.c
@@ -553,12 +553,22 @@ static int vbox_get_modes(struct drm_connector *connector)
 		++num_modes;
 	}
 	vbox_set_edid(connector, preferred_width, preferred_height);
-	drm_object_property_set_value(
-		&connector->base, vbox->dev->mode_config.suggested_x_property,
-		vbox_connector->vbox_crtc->x_hint);
-	drm_object_property_set_value(
-		&connector->base, vbox->dev->mode_config.suggested_y_property,
-		vbox_connector->vbox_crtc->y_hint);
+
+	if (vbox_connector->vbox_crtc->x_hint != -1)
+		drm_object_property_set_value(&connector->base,
+			vbox->dev->mode_config.suggested_x_property,
+			vbox_connector->vbox_crtc->x_hint);
+	else
+		drm_object_property_set_value(&connector->base,
+			vbox->dev->mode_config.suggested_x_property, 0);
+
+	if (vbox_connector->vbox_crtc->y_hint != -1)
+		drm_object_property_set_value(&connector->base,
+			vbox->dev->mode_config.suggested_y_property,
+			vbox_connector->vbox_crtc->y_hint);
+	else
+		drm_object_property_set_value(&connector->base,
+			vbox->dev->mode_config.suggested_y_property, 0);
 
 	return num_modes;
 }
@@ -640,9 +650,9 @@ static int vbox_connector_init(struct drm_device *dev,
 
 	drm_mode_create_suggested_offset_properties(dev);
 	drm_object_attach_property(&connector->base,
-				   dev->mode_config.suggested_x_property, -1);
+				   dev->mode_config.suggested_x_property, 0);
 	drm_object_attach_property(&connector->base,
-				   dev->mode_config.suggested_y_property, -1);
+				   dev->mode_config.suggested_y_property, 0);
 	drm_connector_register(connector);
 
 	drm_mode_connector_attach_encoder(connector, encoder);
diff --git a/drivers/staging/vc04_services/Kconfig b/drivers/staging/vc04_services/Kconfig
index 9e2763663ab8..f5aaf7d629f0 100644
--- a/drivers/staging/vc04_services/Kconfig
+++ b/drivers/staging/vc04_services/Kconfig
@@ -19,18 +19,6 @@ config BCM2835_VCHIQ
 		Defaults to Y when the Broadcom Videocore services
 		are included in the build, N otherwise.
 
-if BCM2835_VCHIQ
-
-config BCM2835_VCHIQ_SUPPORT_MEMDUMP
-	bool "Support dumping memory contents to debug log"
-	help
-		BCM2835 VCHIQ supports the ability to dump the
-		contents of memory to the debug log.  This
-		is typically only needed by diagnostic tools used
-		to debug issues with VideoCore.
-
-endif
-
 source "drivers/staging/vc04_services/bcm2835-audio/Kconfig"
 
 source "drivers/staging/vc04_services/bcm2835-camera/Kconfig"
diff --git a/drivers/staging/vc04_services/Makefile b/drivers/staging/vc04_services/Makefile
index e9a8e1343cbb..1ecb261e04ae 100644
--- a/drivers/staging/vc04_services/Makefile
+++ b/drivers/staging/vc04_services/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_BCM2835_VCHIQ)	+= vchiq.o
 
 vchiq-objs := \
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
index 94654c0c7bba..7e68b3e28246 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c
@@ -65,7 +65,6 @@ void bcm2835_playback_fifo(struct bcm2835_alsa_stream *alsa_stream)
 	unsigned int consumed = 0;
 	int new_period = 0;
 
-
 	audio_info("alsa_stream=%p substream=%p\n", alsa_stream,
 		alsa_stream ? alsa_stream->substream : 0);
 
@@ -111,7 +110,6 @@ static int snd_bcm2835_playback_open_generic(
 	int idx;
 	int err;
 
-
 	if (mutex_lock_interruptible(&chip->audio_mutex)) {
 		audio_error("Interrupted whilst waiting for lock\n");
 		return -EINTR;
@@ -184,7 +182,6 @@ static int snd_bcm2835_playback_open_generic(
 out:
 	mutex_unlock(&chip->audio_mutex);
 
-
 	return err;
 }
 
@@ -207,7 +204,6 @@ static int snd_bcm2835_playback_close(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime;
 	struct bcm2835_alsa_stream *alsa_stream;
 
-
 	chip = snd_pcm_substream_chip(substream);
 	if (mutex_lock_interruptible(&chip->audio_mutex)) {
 		audio_error("Interrupted whilst waiting for lock\n");
@@ -259,7 +255,6 @@ static int snd_bcm2835_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
 	int err;
 
-
 	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 	if (err < 0) {
 		audio_error
@@ -289,7 +284,6 @@ static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream)
 	int channels;
 	int err;
 
-
 	if (mutex_lock_interruptible(&chip->audio_mutex))
 		return -EINTR;
 
@@ -307,13 +301,11 @@ static int snd_bcm2835_pcm_prepare(struct snd_pcm_substream *substream)
 	if (err < 0)
 		audio_error(" error setting hw params\n");
 
-
 	bcm2835_audio_setup(alsa_stream);
 
 	/* in preparation of the stream, set the controls (volume level) of the stream */
 	bcm2835_audio_set_ctls(alsa_stream->chip);
 
-
 	memset(&alsa_stream->pcm_indirect, 0, sizeof(alsa_stream->pcm_indirect));
 
 	alsa_stream->pcm_indirect.hw_buffer_size =
@@ -364,7 +356,6 @@ static int snd_bcm2835_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
 	int err = 0;
 
-
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 		audio_debug("bcm2835_AUDIO_TRIGGER_START running=%d\n",
@@ -416,7 +407,6 @@ snd_bcm2835_pcm_pointer(struct snd_pcm_substream *substream)
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct bcm2835_alsa_stream *alsa_stream = runtime->private_data;
 
-
 	audio_debug("pcm_pointer... (%d) hwptr=%d appl=%d pos=%d\n", 0,
 		frames_to_bytes(runtime, runtime->status->hw_ptr),
 		frames_to_bytes(runtime, runtime->control->appl_ptr),
@@ -493,7 +483,6 @@ int snd_bcm2835_new_pcm(struct bcm2835_chip *chip, u32 numchannels)
 					      snd_bcm2835_playback_hw.buffer_bytes_max,
 					      snd_bcm2835_playback_hw.buffer_bytes_max);
 
-
 out:
 	mutex_unlock(&chip->audio_mutex);
 
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
index 5f3d8f2339e3..3c6f1d91d22d 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c
@@ -337,7 +337,6 @@ static int vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance)
 {
 	unsigned int i;
 
-
 	if (!instance) {
 		LOG_ERR("%s: invalid handle %p\n", __func__, instance);
 
@@ -369,7 +368,6 @@ static int vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance)
 
 	kfree(instance);
 
-
 	return 0;
 }
 
@@ -382,7 +380,6 @@ static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream
 		(struct bcm2835_audio_instance *)alsa_stream->instance;
 	int ret;
 
-
 	LOG_INFO("%s: start\n", __func__);
 	BUG_ON(instance);
 	if (instance) {
@@ -390,8 +387,7 @@ static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream
 			__func__, instance);
 		instance->alsa_stream = alsa_stream;
 		alsa_stream->instance = instance;
-		ret = 0; // xxx todo -1;
-		goto err_free_mem;
+		return 0;
 	}
 
 	/* Initialize and create a VCHI connection */
@@ -401,16 +397,15 @@ static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream
 			LOG_ERR("%s: failed to initialise VCHI instance (ret=%d)\n",
 				__func__, ret);
 
-			ret = -EIO;
-			goto err_free_mem;
+			return -EIO;
 		}
 		ret = vchi_connect(NULL, 0, vchi_instance);
 		if (ret) {
 			LOG_ERR("%s: failed to connect VCHI instance (ret=%d)\n",
 				__func__, ret);
 
-			ret = -EIO;
-			goto err_free_mem;
+			kfree(vchi_instance);
+			return -EIO;
 		}
 		initted = 1;
 	}
@@ -421,19 +416,16 @@ static int bcm2835_audio_open_connection(struct bcm2835_alsa_stream *alsa_stream
 	if (IS_ERR(instance)) {
 		LOG_ERR("%s: failed to initialize audio service\n", __func__);
 
-		ret = PTR_ERR(instance);
-		goto err_free_mem;
+		/* vchi_instance is retained for use the next time. */
+		return PTR_ERR(instance);
 	}
 
 	instance->alsa_stream = alsa_stream;
 	alsa_stream->instance = instance;
 
 	LOG_DBG(" success !\n");
-	ret = 0;
-err_free_mem:
-	kfree(vchi_instance);
 
-	return ret;
+	return 0;
 }
 
 int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream)
@@ -443,7 +435,6 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream)
 	int status;
 	int ret;
 
-
 	my_workqueue_init(alsa_stream);
 
 	ret = bcm2835_audio_open_connection(alsa_stream);
@@ -491,7 +482,6 @@ static int bcm2835_audio_set_ctls_chan(struct bcm2835_alsa_stream *alsa_stream,
 	int status;
 	int ret;
 
-
 	LOG_INFO(" Setting ALSA dest(%d), volume(%d)\n",
 		 chip->dest, chip->volume);
 
@@ -575,7 +565,6 @@ int bcm2835_audio_set_params(struct bcm2835_alsa_stream *alsa_stream,
 	int status;
 	int ret;
 
-
 	LOG_INFO(" Setting ALSA channels(%d), samplerate(%d), bits-per-sample(%d)\n",
 		 channels, samplerate, bps);
 
@@ -636,7 +625,6 @@ unlock:
 int bcm2835_audio_setup(struct bcm2835_alsa_stream *alsa_stream)
 {
 
-
 	return 0;
 }
 
@@ -647,7 +635,6 @@ static int bcm2835_audio_start_worker(struct bcm2835_alsa_stream *alsa_stream)
 	int status;
 	int ret;
 
-
 	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
 		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
 			instance->num_connections);
@@ -684,7 +671,6 @@ static int bcm2835_audio_stop_worker(struct bcm2835_alsa_stream *alsa_stream)
 	int status;
 	int ret;
 
-
 	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
 		LOG_DBG("Interrupted whilst waiting for lock on (%d)\n",
 			instance->num_connections);
@@ -722,7 +708,6 @@ int bcm2835_audio_close(struct bcm2835_alsa_stream *alsa_stream)
 	int status;
 	int ret;
 
-
 	my_workqueue_quit(alsa_stream);
 
 	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
@@ -780,7 +765,6 @@ static int bcm2835_audio_write_worker(struct bcm2835_alsa_stream *alsa_stream,
 	int status;
 	int ret;
 
-
 	LOG_INFO(" Writing %d bytes from %p\n", count, src);
 
 	if (mutex_lock_interruptible(&instance->vchi_mutex)) {
diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
index 379604d3554e..f1e43e45fd67 100644
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
@@ -123,8 +123,6 @@ struct bcm2835_alsa_stream {
 	struct snd_pcm_indirect pcm_indirect;
 
 	spinlock_t lock;
-	volatile unsigned int control;
-	volatile unsigned int status;
 
 	int open;
 	int running;
diff --git a/drivers/staging/vc04_services/bcm2835-camera/Makefile b/drivers/staging/vc04_services/bcm2835-camera/Makefile
index 8307f30517d5..2a4565e682d8 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/Makefile
+++ b/drivers/staging/vc04_services/bcm2835-camera/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 bcm2835-v4l2-$(CONFIG_VIDEO_BCM2835) := \
 	bcm2835-camera.o \
 	controls.o \
diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h
index 52cdf4da1b47..5a1b2a7d8eb0 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h
+++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-msg.h
@@ -70,7 +70,7 @@ enum mmal_msg_type {
 
 /* port action request messages differ depending on the action type */
 enum mmal_msg_port_action_type {
-	MMAL_MSG_PORT_ACTION_TYPE_UNKNOWN = 0,      /* Unkown action */
+	MMAL_MSG_PORT_ACTION_TYPE_UNKNOWN = 0,      /* Unknown action */
 	MMAL_MSG_PORT_ACTION_TYPE_ENABLE,           /* Enable a port */
 	MMAL_MSG_PORT_ACTION_TYPE_DISABLE,          /* Disable a port */
 	MMAL_MSG_PORT_ACTION_TYPE_FLUSH,            /* Flush a port */
@@ -217,36 +217,36 @@ struct mmal_msg_port_action_reply {
 #define MMAL_VC_SHORT_DATA 128
 
 /** Signals that the current payload is the end of the stream of data */
-#define MMAL_BUFFER_HEADER_FLAG_EOS                    (1<<0)
+#define MMAL_BUFFER_HEADER_FLAG_EOS                    BIT(0)
 /** Signals that the start of the current payload starts a frame */
-#define MMAL_BUFFER_HEADER_FLAG_FRAME_START            (1<<1)
+#define MMAL_BUFFER_HEADER_FLAG_FRAME_START            BIT(1)
 /** Signals that the end of the current payload ends a frame */
-#define MMAL_BUFFER_HEADER_FLAG_FRAME_END              (1<<2)
+#define MMAL_BUFFER_HEADER_FLAG_FRAME_END              BIT(2)
 /** Signals that the current payload contains only complete frames (>1) */
 #define MMAL_BUFFER_HEADER_FLAG_FRAME                  \
 	(MMAL_BUFFER_HEADER_FLAG_FRAME_START|MMAL_BUFFER_HEADER_FLAG_FRAME_END)
 /** Signals that the current payload is a keyframe (i.e. self decodable) */
-#define MMAL_BUFFER_HEADER_FLAG_KEYFRAME               (1<<3)
+#define MMAL_BUFFER_HEADER_FLAG_KEYFRAME               BIT(3)
 /** Signals a discontinuity in the stream of data (e.g. after a seek).
  * Can be used for instance by a decoder to reset its state
  */
-#define MMAL_BUFFER_HEADER_FLAG_DISCONTINUITY          (1<<4)
+#define MMAL_BUFFER_HEADER_FLAG_DISCONTINUITY          BIT(4)
 /** Signals a buffer containing some kind of config data for the component
  * (e.g. codec config data)
  */
-#define MMAL_BUFFER_HEADER_FLAG_CONFIG                 (1<<5)
+#define MMAL_BUFFER_HEADER_FLAG_CONFIG                 BIT(5)
 /** Signals an encrypted payload */
-#define MMAL_BUFFER_HEADER_FLAG_ENCRYPTED              (1<<6)
+#define MMAL_BUFFER_HEADER_FLAG_ENCRYPTED              BIT(6)
 /** Signals a buffer containing side information */
-#define MMAL_BUFFER_HEADER_FLAG_CODECSIDEINFO          (1<<7)
+#define MMAL_BUFFER_HEADER_FLAG_CODECSIDEINFO          BIT(7)
 /** Signals a buffer which is the snapshot/postview image from a stills
  * capture
  */
-#define MMAL_BUFFER_HEADER_FLAGS_SNAPSHOT              (1<<8)
+#define MMAL_BUFFER_HEADER_FLAGS_SNAPSHOT              BIT(8)
 /** Signals a buffer which contains data known to be corrupted */
-#define MMAL_BUFFER_HEADER_FLAG_CORRUPTED              (1<<9)
+#define MMAL_BUFFER_HEADER_FLAG_CORRUPTED              BIT(9)
 /** Signals that a buffer failed to be transmitted */
-#define MMAL_BUFFER_HEADER_FLAG_TRANSMISSION_FAILED    (1<<10)
+#define MMAL_BUFFER_HEADER_FLAG_TRANSMISSION_FAILED    BIT(10)
 
 struct mmal_driver_buffer {
 	u32 magic;
diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c
index 4360db6d4392..6ea7fb0ea50e 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c
+++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.c
@@ -1963,7 +1963,7 @@ int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance)
 
 	status = vchi_service_close(instance->handle);
 	if (status != 0)
-		pr_err("mmal-vchiq: VCHIQ close failed");
+		pr_err("mmal-vchiq: VCHIQ close failed\n");
 
 	mutex_unlock(&instance->vchiq_mutex);
 
diff --git a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h
index 63db053532bf..db39900c9d91 100644
--- a/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h
+++ b/drivers/staging/vc04_services/bcm2835-camera/mmal-vchiq.h
@@ -130,7 +130,7 @@ int vchiq_mmal_component_disable(
 /* enable a mmal port
  *
  * enables a port and if a buffer callback provided enque buffer
- * headers as apropriate for the port.
+ * headers as appropriate for the port.
  */
 int vchiq_mmal_port_enable(
 		struct vchiq_mmal_instance *instance,
diff --git a/drivers/staging/vc04_services/interface/vchi/connections/connection.h b/drivers/staging/vc04_services/interface/vchi/connections/connection.h
index e793cdf2847c..67c84386c65a 100644
--- a/drivers/staging/vc04_services/interface/vchi/connections/connection.h
+++ b/drivers/staging/vc04_services/interface/vchi/connections/connection.h
@@ -54,7 +54,6 @@ typedef struct opaque_vchi_connection_info_t VCHI_CONNECTION_STATE_T;
 
 typedef struct vchi_connection_t VCHI_CONNECTION_T;
 
-
 /******************************************************************************
  API
  *****************************************************************************/
@@ -212,7 +211,6 @@ typedef void * (*VCHI_BUFFER_ALLOCATE)(VCHI_CONNECTION_SERVICE_HANDLE_T service_
 // free memory allocated by buffer_allocate
 typedef void   (*VCHI_BUFFER_FREE)(VCHI_CONNECTION_SERVICE_HANDLE_T service_handle, void * address);
 
-
 /******************************************************************************
  System driver struct
  *****************************************************************************/
@@ -321,7 +319,6 @@ struct vchi_connection_t {
 #endif
 };
 
-
 #endif /* CONNECTION_H_ */
 
 /****************************** End of file **********************************/
diff --git a/drivers/staging/vc04_services/interface/vchi/message_drivers/message.h b/drivers/staging/vc04_services/interface/vchi/message_drivers/message.h
index a7740a425388..834263f278cf 100644
--- a/drivers/staging/vc04_services/interface/vchi/message_drivers/message.h
+++ b/drivers/staging/vc04_services/interface/vchi/message_drivers/message.h
@@ -41,7 +41,6 @@
 #include "interface/vchi/vchi_cfg_internal.h"
 #include "interface/vchi/vchi_common.h"
 
-
 typedef enum message_event_type {
    MESSAGE_EVENT_NONE,
    MESSAGE_EVENT_NOP,
@@ -111,7 +110,6 @@ typedef struct rx_bulk_slotinfo_t {
    VCHI_FLAGS_T flags;
 } RX_BULK_SLOTINFO_T;
 
-
 /* ----------------------------------------------------------------------
  * each connection driver will have a pool of the following struct.
  *
@@ -155,7 +153,6 @@ typedef struct {
 
 } MESSAGE_EVENT_T;
 
-
 // callbacks
 typedef void VCHI_MESSAGE_DRIVER_EVENT_CALLBACK_T( void *state );
 
@@ -163,7 +160,6 @@ typedef struct {
    VCHI_MESSAGE_DRIVER_EVENT_CALLBACK_T *event_callback;
 } VCHI_MESSAGE_DRIVER_OPEN_T;
 
-
 // handle to this instance of message driver (as returned by ->open)
 typedef struct opaque_mhandle_t *VCHI_MDRIVER_HANDLE_T;
 
@@ -195,7 +191,6 @@ struct opaque_vchi_message_driver_t {
    void    (*debug)( VCHI_MDRIVER_HANDLE_T *handle );
 };
 
-
 #endif // _VCHI_MESSAGE_H_
 
 /****************************** End of file ***********************************/
diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h
index addb7b00b688..66a3a060fad2 100644
--- a/drivers/staging/vc04_services/interface/vchi/vchi.h
+++ b/drivers/staging/vc04_services/interface/vchi/vchi.h
@@ -39,7 +39,6 @@
 #include "interface/vchi/connections/connection.h"
 #include "vchi_mh.h"
 
-
 /******************************************************************************
  Global defs
  *****************************************************************************/
@@ -92,7 +91,6 @@ typedef struct vchi_msg_vector_ex {
    } u;
 } VCHI_MSG_VECTOR_EX_T;
 
-
 // Construct an entry in a msg vector for a pointer (p) of length (l)
 #define VCHI_VEC_POINTER(p,l)  VCHI_VEC_POINTER, { { (VCHI_MEM_HANDLE_T)(p), (l) } }
 
@@ -103,7 +101,6 @@ typedef struct vchi_msg_vector_ex {
 #define MAKE_FOURCC(x) ((int32_t)( (x[0] << 24) | (x[1] << 16) | (x[2] << 8) | x[3] ))
 #define FOURCC_TO_CHAR(x) (x >> 24) & 0xFF,(x >> 16) & 0xFF,(x >> 8) & 0xFF, x & 0xFF
 
-
 // Opaque service information
 struct opaque_vchi_service_t;
 
@@ -114,8 +111,6 @@ typedef struct {
    void *message;
 } VCHI_HELD_MSG_T;
 
-
-
 // structure used to provide the information needed to open a server or a client
 typedef struct {
 	struct vchi_version version;
@@ -162,7 +157,6 @@ extern "C" {
 extern /*@observer@*/ VCHI_CONNECTION_T * vchi_create_connection( const VCHI_CONNECTION_API_T * function_table,
                                                    const VCHI_MESSAGE_DRIVER_T * low_level);
 
-
 // Routine used to initialise the vchi on both local + remote connections
 extern int32_t vchi_initialise( VCHI_INSTANCE_T *instance_handle );
 
@@ -185,7 +179,6 @@ extern void * vchi_allocate_buffer(VCHI_SERVICE_HANDLE_T handle, uint32_t *lengt
 extern void vchi_free_buffer(VCHI_SERVICE_HANDLE_T handle, void *address);
 extern uint32_t vchi_current_time(VCHI_INSTANCE_T instance_handle);
 
-
 /******************************************************************************
  Global service API
  *****************************************************************************/
@@ -194,7 +187,7 @@ extern int32_t vchi_service_create( VCHI_INSTANCE_T instance_handle,
                                     SERVICE_CREATION_T *setup,
                                     VCHI_SERVICE_HANDLE_T *handle );
 
-// Routine to destory a service
+// Routine to destroy a service
 extern int32_t vchi_service_destroy( const VCHI_SERVICE_HANDLE_T handle );
 
 // Routine to open a named service
@@ -307,7 +300,6 @@ extern int32_t vchi_msg_iter_hold_next( VCHI_MSG_ITER_T *iter,
                                         uint32_t *msg_size, // }
                                         VCHI_HELD_MSG_T *message );
 
-
 /******************************************************************************
  Global bulk API
  *****************************************************************************/
@@ -319,7 +311,6 @@ extern int32_t vchi_bulk_queue_receive( VCHI_SERVICE_HANDLE_T handle,
                                         VCHI_FLAGS_T flags,
                                         void *transfer_handle );
 
-
 // Prepare interface for a transfer from the other side into relocatable memory.
 int32_t vchi_bulk_queue_receive_reloc( const VCHI_SERVICE_HANDLE_T handle,
                                        VCHI_MEM_HANDLE_T h_dst,
@@ -335,7 +326,6 @@ extern int32_t vchi_bulk_queue_transmit( VCHI_SERVICE_HANDLE_T handle,
                                          VCHI_FLAGS_T flags,
                                          void *transfer_handle );
 
-
 /******************************************************************************
  Configuration plumbing
  *****************************************************************************/
diff --git a/drivers/staging/vc04_services/interface/vchi/vchi_common.h b/drivers/staging/vc04_services/interface/vchi/vchi_common.h
index 45c2070d46b0..76e10fe65d9b 100644
--- a/drivers/staging/vc04_services/interface/vchi/vchi_common.h
+++ b/drivers/staging/vc04_services/interface/vchi/vchi_common.h
@@ -34,7 +34,6 @@
 #ifndef VCHI_COMMON_H_
 #define VCHI_COMMON_H_
 
-
 //flags used when sending messages (must be bitmapped)
 typedef enum {
    VCHI_FLAGS_NONE                      = 0x0,
@@ -118,14 +117,11 @@ typedef enum {
    VCHI_SERVICE_OPTION_MAX
 } VCHI_SERVICE_OPTION_T;
 
-
 //Callback used by all services / bulk transfers
 typedef void (*VCHI_CALLBACK_T)(void *callback_param, //my service local param
 				 VCHI_CALLBACK_REASON_T reason,
 				 void *handle); //for transmitting msg's only
 
-
-
 /*
  * Define vector struct for scatter-gather (vector) operations
  * Vectors can be nested - if a vector element has negative length, then
@@ -154,7 +150,6 @@ typedef struct opaque_vchi_connection_api_t VCHI_CONNECTION_API_T;
 // Opaque type for a message driver
 typedef struct opaque_vchi_message_driver_t VCHI_MESSAGE_DRIVER_T;
 
-
 // Iterator structure for reading ahead through received message queue. Allocated by client,
 // initialised by vchi_msg_look_ahead. Fields are for internal VCHI use only.
 // Iterates over messages in queue at the instant of the call to vchi_msg_lookahead -
@@ -168,5 +163,4 @@ typedef struct {
    void *remove;
 } VCHI_MSG_ITER_T;
 
-
 #endif // VCHI_COMMON_H_
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
index 0159ca4407d8..eea2d78b0ec6 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
@@ -59,10 +59,10 @@
 #define BELL0	0x00
 #define BELL2	0x08
 
-typedef struct vchiq_2835_state_struct {
+struct vchiq_2835_state {
 	int inited;
 	VCHIQ_ARM_STATE_T arm_state;
-} VCHIQ_2835_ARM_STATE_T;
+};
 
 struct vchiq_pagelist_info {
 	PAGELIST_T *pagelist;
@@ -84,8 +84,6 @@ static char *g_free_fragments;
 static struct semaphore g_free_fragments_sema;
 static struct device *g_dev;
 
-extern int vchiq_arm_log_level;
-
 static DEFINE_SEMAPHORE(g_free_fragments_mutex);
 
 static irqreturn_t
@@ -206,25 +204,31 @@ VCHIQ_STATUS_T
 vchiq_platform_init_state(VCHIQ_STATE_T *state)
 {
 	VCHIQ_STATUS_T status = VCHIQ_SUCCESS;
+	struct vchiq_2835_state *platform_state;
+
+	state->platform_state = kzalloc(sizeof(*platform_state), GFP_KERNEL);
+	platform_state = (struct vchiq_2835_state *)state->platform_state;
+
+	platform_state->inited = 1;
+	status = vchiq_arm_init_state(state, &platform_state->arm_state);
 
-	state->platform_state = kzalloc(sizeof(VCHIQ_2835_ARM_STATE_T), GFP_KERNEL);
-	((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->inited = 1;
-	status = vchiq_arm_init_state(state, &((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->arm_state);
 	if (status != VCHIQ_SUCCESS)
-	{
-		((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->inited = 0;
-	}
+		platform_state->inited = 0;
+
 	return status;
 }
 
 VCHIQ_ARM_STATE_T*
 vchiq_platform_get_arm_state(VCHIQ_STATE_T *state)
 {
-	if (!((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->inited)
-	{
+	struct vchiq_2835_state *platform_state;
+
+	platform_state   = (struct vchiq_2835_state *)state->platform_state;
+
+	if (!platform_state->inited)
 		BUG();
-	}
-	return &((VCHIQ_2835_ARM_STATE_T *)state->platform_state)->arm_state;
+
+	return &platform_state->arm_state;
 }
 
 void
@@ -383,12 +387,12 @@ cleanup_pagelistinfo(struct vchiq_pagelist_info *pagelistinfo)
 }
 
 /* There is a potential problem with partial cache lines (pages?)
-** at the ends of the block when reading. If the CPU accessed anything in
-** the same line (page?) then it may have pulled old data into the cache,
-** obscuring the new data underneath. We can solve this by transferring the
-** partial cache lines separately, and allowing the ARM to copy into the
-** cached area.
-*/
+ * at the ends of the block when reading. If the CPU accessed anything in
+ * the same line (page?) then it may have pulled old data into the cache,
+ * obscuring the new data underneath. We can solve this by transferring the
+ * partial cache lines separately, and allowing the ARM to copy into the
+ * cached area.
+ */
 
 static struct vchiq_pagelist_info *
 create_pagelist(char __user *buf, size_t count, unsigned short type,
@@ -415,15 +419,15 @@ create_pagelist(char __user *buf, size_t count, unsigned short type,
 			sizeof(struct vchiq_pagelist_info);
 
 	/* Allocate enough storage to hold the page pointers and the page
-	** list
-	*/
+	 * list
+	 */
 	pagelist = dma_zalloc_coherent(g_dev,
 				       pagelist_size,
 				       &dma_addr,
 				       GFP_KERNEL);
 
-	vchiq_log_trace(vchiq_arm_log_level, "create_pagelist - %pK",
-			pagelist);
+	vchiq_log_trace(vchiq_arm_log_level, "%s - %pK", __func__, pagelist);
+
 	if (!pagelist)
 		return NULL;
 
@@ -483,9 +487,8 @@ create_pagelist(char __user *buf, size_t count, unsigned short type,
 
 		if (actual_pages != num_pages) {
 			vchiq_log_info(vchiq_arm_log_level,
-				       "create_pagelist - only %d/%d pages locked",
-				       actual_pages,
-				       num_pages);
+				       "%s - only %d/%d pages locked",
+				       __func__, actual_pages, num_pages);
 
 			/* This is probably due to the process being killed */
 			while (actual_pages > 0)
@@ -612,18 +615,20 @@ free_pagelist(struct vchiq_pagelist_info *pagelistinfo,
 			if (head_bytes > actual)
 				head_bytes = actual;
 
-			memcpy((char *)page_address(pages[0]) +
+			memcpy((char *)kmap(pages[0]) +
 				pagelist->offset,
 				fragments,
 				head_bytes);
+			kunmap(pages[0]);
 		}
 		if ((actual >= 0) && (head_bytes < actual) &&
 			(tail_bytes != 0)) {
-			memcpy((char *)page_address(pages[num_pages - 1]) +
+			memcpy((char *)kmap(pages[num_pages - 1]) +
 				((pagelist->offset + actual) &
 				(PAGE_SIZE - 1) & ~(g_cache_line_size - 1)),
 				fragments + g_cache_line_size,
 				tail_bytes);
+			kunmap(pages[num_pages - 1]);
 		}
 
 		down(&g_free_fragments_mutex);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index 314ffac50bb8..411539f8ff8c 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -109,9 +109,7 @@ static const char *const resume_state_names[] = {
  * requested */
 #define FORCE_SUSPEND_TIMEOUT_MS 200
 
-
-static void suspend_timer_callback(unsigned long context);
-
+static void suspend_timer_callback(struct timer_list *t);
 
 typedef struct user_service_struct {
 	VCHIQ_SERVICE_T *service;
@@ -195,11 +193,6 @@ static const char *const ioctl_names[] = {
 vchiq_static_assert(ARRAY_SIZE(ioctl_names) ==
 		    (VCHIQ_IOC_MAX + 1));
 
-#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP)
-static void
-dump_phys_mem(void *virt_addr, u32 num_bytes);
-#endif
-
 /****************************************************************************
 *
 *   add_completion
@@ -1161,20 +1154,6 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 				args.handle, args.option, args.value);
 	} break;
 
-#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP)
-	case VCHIQ_IOC_DUMP_PHYS_MEM: {
-		VCHIQ_DUMP_MEM_T  args;
-
-		if (copy_from_user
-			 (&args, (const void __user *)arg,
-			  sizeof(args)) != 0) {
-			ret = -EFAULT;
-			break;
-		}
-		dump_phys_mem(args.virt_addr, args.num_bytes);
-	} break;
-#endif
-
 	case VCHIQ_IOC_LIB_VERSION: {
 		unsigned int lib_version = (unsigned int)arg;
 
@@ -1654,42 +1633,6 @@ vchiq_compat_ioctl_get_config(struct file *file,
 	return vchiq_ioctl(file, VCHIQ_IOC_GET_CONFIG, (unsigned long)args);
 }
 
-#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP)
-
-struct vchiq_dump_mem32 {
-	compat_uptr_t virt_addr;
-	u32 num_bytes;
-};
-
-#define VCHIQ_IOC_DUMP_PHYS_MEM32 \
-	_IOW(VCHIQ_IOC_MAGIC, 15, struct vchiq_dump_mem32)
-
-static long
-vchiq_compat_ioctl_dump_phys_mem(struct file *file,
-				 unsigned int cmd,
-				 unsigned long arg)
-{
-	VCHIQ_DUMP_MEM_T *args;
-	struct vchiq_dump_mem32 args32;
-
-	args = compat_alloc_user_space(sizeof(*args));
-	if (!args)
-		return -EFAULT;
-
-	if (copy_from_user(&args32,
-			   (struct vchiq_dump_mem32 *)arg,
-			   sizeof(args32)))
-		return -EFAULT;
-
-	if (put_user(compat_ptr(args32.virt_addr), &args->virt_addr) ||
-	    put_user(args32.num_bytes, &args->num_bytes))
-		return -EFAULT;
-
-	return vchiq_ioctl(file, VCHIQ_IOC_DUMP_PHYS_MEM, (unsigned long)args);
-}
-
-#endif
-
 static long
 vchiq_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
@@ -1707,10 +1650,6 @@ vchiq_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		return vchiq_compat_ioctl_dequeue_message(file, cmd, arg);
 	case VCHIQ_IOC_GET_CONFIG32:
 		return vchiq_compat_ioctl_get_config(file, cmd, arg);
-#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP)
-	case VCHIQ_IOC_DUMP_PHYS_MEM32:
-		return vchiq_compat_ioctl_dump_phys_mem(file, cmd, arg);
-#endif
 	default:
 		return vchiq_ioctl(file, cmd, arg);
 	}
@@ -2050,98 +1989,6 @@ vchiq_dump_platform_service_state(void *dump_context, VCHIQ_SERVICE_T *service)
 
 /****************************************************************************
 *
-*   dump_user_mem
-*
-***************************************************************************/
-
-#if defined(CONFIG_BCM2835_VCHIQ_SUPPORT_MEMDUMP)
-
-static void
-dump_phys_mem(void *virt_addr, u32 num_bytes)
-{
-	int            rc;
-	u8            *end_virt_addr = virt_addr + num_bytes;
-	int            num_pages;
-	int            offset;
-	int            end_offset;
-	int            page_idx;
-	int            prev_idx;
-	struct page   *page;
-	struct page  **pages;
-	u8            *kmapped_virt_ptr;
-
-	/* Align virt_addr and end_virt_addr to 16 byte boundaries. */
-
-	virt_addr = (void *)((unsigned long)virt_addr & ~0x0fuL);
-	end_virt_addr = (void *)(((unsigned long)end_virt_addr + 15uL) &
-		~0x0fuL);
-
-	offset = (int)(long)virt_addr & (PAGE_SIZE - 1);
-	end_offset = (int)(long)end_virt_addr & (PAGE_SIZE - 1);
-
-	num_pages = DIV_ROUND_UP(offset + num_bytes, PAGE_SIZE);
-
-	pages = kmalloc(sizeof(struct page *) * num_pages, GFP_KERNEL);
-	if (!pages) {
-		vchiq_log_error(vchiq_arm_log_level,
-			"Unable to allocation memory for %d pages\n",
-			num_pages);
-		return;
-	}
-
-	down_read(&current->mm->mmap_sem);
-	rc = get_user_pages(
-		(unsigned long)virt_addr, /* start */
-		num_pages,                /* len */
-		0,                        /* gup_flags */
-		pages,                    /* pages (array of page pointers) */
-		NULL);                    /* vmas */
-	up_read(&current->mm->mmap_sem);
-
-	prev_idx = -1;
-	page = NULL;
-
-	if (rc < 0) {
-		vchiq_log_error(vchiq_arm_log_level,
-				"Failed to get user pages: %d\n", rc);
-		goto out;
-	}
-
-	while (offset < end_offset) {
-		int page_offset = offset % PAGE_SIZE;
-
-		page_idx = offset / PAGE_SIZE;
-		if (page_idx != prev_idx) {
-			if (page != NULL)
-				kunmap(page);
-			page = pages[page_idx];
-			kmapped_virt_ptr = kmap(page);
-			prev_idx = page_idx;
-		}
-
-		if (vchiq_arm_log_level >= VCHIQ_LOG_TRACE)
-			vchiq_log_dump_mem("ph",
-				(u32)(unsigned long)&kmapped_virt_ptr[
-					page_offset],
-				&kmapped_virt_ptr[page_offset], 16);
-
-		offset += 16;
-	}
-
-out:
-	if (page != NULL)
-		kunmap(page);
-
-	for (page_idx = 0; page_idx < num_pages; page_idx++)
-		put_page(pages[page_idx]);
-
-	kfree(pages);
-}
-
-#endif
-
-/****************************************************************************
-*
 *   vchiq_read
 *
 ***************************************************************************/
@@ -2307,8 +2154,6 @@ exit:
 	return 0;
 }
 
-
-
 VCHIQ_STATUS_T
 vchiq_arm_init_state(VCHIQ_STATE_T *state, VCHIQ_ARM_STATE_T *arm_state)
 {
@@ -2339,8 +2184,9 @@ vchiq_arm_init_state(VCHIQ_STATE_T *state, VCHIQ_ARM_STATE_T *arm_state)
 
 		arm_state->suspend_timer_timeout = SUSPEND_TIMER_TIMEOUT_MS;
 		arm_state->suspend_timer_running = 0;
-		setup_timer(&arm_state->suspend_timer, suspend_timer_callback,
-			    (unsigned long)(state));
+		arm_state->state = state;
+		timer_setup(&arm_state->suspend_timer, suspend_timer_callback,
+			    0);
 
 		arm_state->first_connect = 0;
 
@@ -2469,7 +2315,6 @@ set_resume_state(VCHIQ_ARM_STATE_T *arm_state,
 	}
 }
 
-
 /* should be called with the write lock held */
 inline void
 start_suspend_timer(VCHIQ_ARM_STATE_T *arm_state)
@@ -2589,7 +2434,6 @@ vchiq_arm_vcsuspend(VCHIQ_STATE_T *state)
 	vchiq_log_trace(vchiq_susp_log_level, "%s", __func__);
 	status = VCHIQ_SUCCESS;
 
-
 	switch (arm_state->vc_suspend_state) {
 	case VC_SUSPEND_REQUESTED:
 		vchiq_log_info(vchiq_susp_log_level, "%s: suspend already "
@@ -2654,7 +2498,6 @@ out:
 	return;
 }
 
-
 static void
 output_timeout_error(VCHIQ_STATE_T *state)
 {
@@ -2834,7 +2677,6 @@ out:
 	return;
 }
 
-
 int
 vchiq_arm_allow_resume(VCHIQ_STATE_T *state)
 {
@@ -2996,7 +2838,6 @@ vchiq_use_internal(VCHIQ_STATE_T *state, VCHIQ_SERVICE_T *service,
 			"%s %s count %d, state count %d",
 			__func__, entity, *entity_uc, local_uc);
 
-
 	write_unlock_bh(&arm_state->susp_res_lock);
 
 	/* Completion is in a done state when we're not suspended, so this won't
@@ -3177,18 +3018,14 @@ vchiq_instance_set_trace(VCHIQ_INSTANCE_T instance, int trace)
 	instance->trace = (trace != 0);
 }
 
-static void suspend_timer_callback(unsigned long context)
+static void suspend_timer_callback(struct timer_list *t)
 {
-	VCHIQ_STATE_T *state = (VCHIQ_STATE_T *)context;
-	VCHIQ_ARM_STATE_T *arm_state = vchiq_platform_get_arm_state(state);
+	VCHIQ_ARM_STATE_T *arm_state = from_timer(arm_state, t, suspend_timer);
+	VCHIQ_STATE_T *state = arm_state->state;
 
-	if (!arm_state)
-		goto out;
 	vchiq_log_info(vchiq_susp_log_level,
 		"%s - suspend timer expired - check suspend", __func__);
 	vchiq_check_suspend(state);
-out:
-	return;
 }
 
 VCHIQ_STATUS_T
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
index bfbd81d9db33..40bb0c63b1a9 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h
@@ -42,7 +42,6 @@
 #include "vchiq_core.h"
 #include "vchiq_debugfs.h"
 
-
 enum vc_suspend_status {
 	VC_SUSPEND_FORCE_CANCELED = -3, /* Force suspend canceled, too busy */
 	VC_SUSPEND_REJECTED = -2,  /* Videocore rejected suspend request */
@@ -61,15 +60,12 @@ enum vc_resume_status {
 	VC_RESUME_RESUMED      /* Videocore resumed successfully (active) */
 };
 
-
 enum USE_TYPE_E {
 	USE_TYPE_SERVICE,
 	USE_TYPE_SERVICE_NO_RESUME,
 	USE_TYPE_VCHIQ
 };
 
-
-
 typedef struct vchiq_arm_state_struct {
 	/* Keepalive-related data */
 	struct task_struct *ka_thread;
@@ -87,6 +83,7 @@ typedef struct vchiq_arm_state_struct {
 
 	unsigned int wake_address;
 
+	VCHIQ_STATE_T *state;
 	struct timer_list suspend_timer;
 	int suspend_timer_timeout;
 	int suspend_timer_running;
@@ -216,5 +213,4 @@ set_resume_state(VCHIQ_ARM_STATE_T *arm_state,
 extern void
 start_suspend_timer(VCHIQ_ARM_STATE_T *arm_state);
 
-
 #endif /* VCHIQ_ARM_H */
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
index 486be990d7fc..ecff92bae200 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -130,7 +130,6 @@ static const char *const conn_state_names[] = {
 	"RESUME_TIMEOUT"
 };
 
-
 static void
 release_message_sync(VCHIQ_STATE_T *state, VCHIQ_HEADER_T *header);
 
@@ -2168,7 +2167,6 @@ slot_handler_func(void *v)
 				break;
 			}
 
-
 		}
 
 		DEBUG_TRACE(SLOT_HANDLER_LINE);
@@ -2177,7 +2175,6 @@ slot_handler_func(void *v)
 	return 0;
 }
 
-
 /* Called by the recycle thread */
 static int
 recycle_func(void *v)
@@ -2193,7 +2190,6 @@ recycle_func(void *v)
 	return 0;
 }
 
-
 /* Called by the sync thread */
 static int
 sync_func(void *v)
@@ -2301,7 +2297,6 @@ sync_func(void *v)
 	return 0;
 }
 
-
 static void
 init_bulk_queue(VCHIQ_BULK_QUEUE_T *queue)
 {
@@ -2312,14 +2307,12 @@ init_bulk_queue(VCHIQ_BULK_QUEUE_T *queue)
 	queue->remove = 0;
 }
 
-
 inline const char *
 get_conn_state_name(VCHIQ_CONNSTATE_T conn_state)
 {
 	return conn_state_names[conn_state];
 }
 
-
 VCHIQ_SLOT_ZERO_T *
 vchiq_init_slots(void *mem_base, int mem_size)
 {
@@ -2958,8 +2951,7 @@ vchiq_close_service_internal(VCHIQ_SERVICE_T *service, int close_recvd)
 
 	case VCHIQ_SRVSTATE_OPENSYNC:
 		mutex_lock(&state->sync_mutex);
-		/* Drop through */
-
+		/* fall through */
 	case VCHIQ_SRVSTATE_OPEN:
 		if (state->is_master || close_recvd) {
 			if (!do_abort_bulks(service))
@@ -3296,7 +3288,6 @@ vchiq_remove_service(VCHIQ_SERVICE_HANDLE_T handle)
 	return status;
 }
 
-
 /* This function may be called by kernel threads or user threads.
  * User threads may receive VCHIQ_RETRY to indicate that a signal has been
  * received and the call should be retried after being returned to user
@@ -3876,7 +3867,6 @@ vchiq_dump_service_state(void *dump_context, VCHIQ_SERVICE_T *service)
 		vchiq_dump_platform_service_state(dump_context, service);
 }
 
-
 void
 vchiq_loud_error_header(void)
 {
@@ -3901,7 +3891,6 @@ vchiq_loud_error_footer(void)
 		"================");
 }
 
-
 VCHIQ_STATUS_T vchiq_send_remote_use(VCHIQ_STATE_T *state)
 {
 	VCHIQ_STATUS_T status = VCHIQ_RETRY;
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h
index 9e164652548a..afc1d8144a84 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h
@@ -702,7 +702,6 @@ vchiq_platform_handle_timeout(VCHIQ_STATE_T *state);
 extern void
 vchiq_set_conn_state(VCHIQ_STATE_T *state, VCHIQ_CONNSTATE_T newstate);
 
-
 extern void
 vchiq_log_dump_mem(const char *label, uint32_t addr, const void *voidMem,
 	size_t numBytes);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
index 9367a9a5aa3c..766b4fe5f32c 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
@@ -32,7 +32,6 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-
 #include <linux/debugfs.h>
 #include "vchiq_core.h"
 #include "vchiq_arm.h"
@@ -52,7 +51,6 @@
 #define VCHIQ_LOG_INFO_STR    "info"
 #define VCHIQ_LOG_TRACE_STR   "trace"
 
-
 /* Top-level debug info */
 struct vchiq_debugfs_info {
 	/* Global 'vchiq' debugfs entry used by all instances */
@@ -316,7 +314,6 @@ void vchiq_debugfs_remove_instance(VCHIQ_INSTANCE_T instance)
 	debugfs_remove_recursive(node->dentry);
 }
 
-
 int vchiq_debugfs_init(void)
 {
 	BUG_ON(debugfs_info.vchiq_cfg_dir != NULL);
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_genversion b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_genversion
index 9f5b6344b9b7..dd1f324a8654 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_genversion
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_genversion
@@ -1,4 +1,5 @@
 #!/usr/bin/perl -w
+# SPDX-License-Identifier: GPL-2.0
 
 use strict;
 
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
index 8af95fc361ed..d465e1cf5db9 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c
@@ -41,14 +41,14 @@
 
 #define vchiq_status_to_vchi(status) ((int32_t)status)
 
-typedef struct {
+struct shim_service {
 	VCHIQ_SERVICE_HANDLE_T handle;
 
 	VCHIU_QUEUE_T queue;
 
 	VCHI_CALLBACK_T callback;
 	void *callback_param;
-} SHIM_SERVICE_T;
+};
 
 /* ----------------------------------------------------------------------
  * return pointer to the mphi message driver function table
@@ -84,7 +84,6 @@ VCHI_CONNECTION_T *vchi_create_connection(
  *             void **data,
  *             uint32_t *msg_size,
 
-
  *             VCHI_FLAGS_T flags
  *
  * Description: Routine to return a pointer to the current message (to allow in
@@ -99,7 +98,7 @@ int32_t vchi_msg_peek(VCHI_SERVICE_HANDLE_T handle,
 	uint32_t *msg_size,
 	VCHI_FLAGS_T flags)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_HEADER_T *header;
 
 	WARN_ON((flags != VCHI_FLAGS_NONE) &&
@@ -131,7 +130,7 @@ EXPORT_SYMBOL(vchi_msg_peek);
  ***********************************************************/
 int32_t vchi_msg_remove(VCHI_SERVICE_HANDLE_T handle)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_HEADER_T *header;
 
 	header = vchiu_queue_pop(&service->queue);
@@ -163,7 +162,7 @@ int32_t vchi_msg_queue(VCHI_SERVICE_HANDLE_T handle,
 	void *context,
 	uint32_t data_size)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_STATUS_T status;
 
 	while (1) {
@@ -262,7 +261,7 @@ int32_t vchi_bulk_queue_receive(VCHI_SERVICE_HANDLE_T handle,
 	VCHI_FLAGS_T flags,
 	void *bulk_handle)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_BULK_MODE_T mode;
 	VCHIQ_STATUS_T status;
 
@@ -322,7 +321,7 @@ int32_t vchi_bulk_queue_transmit(VCHI_SERVICE_HANDLE_T handle,
 	VCHI_FLAGS_T flags,
 	void *bulk_handle)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_BULK_MODE_T mode;
 	VCHIQ_STATUS_T status;
 
@@ -384,7 +383,7 @@ int32_t vchi_msg_dequeue(VCHI_SERVICE_HANDLE_T handle,
 	uint32_t *actual_msg_size,
 	VCHI_FLAGS_T flags)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_HEADER_T *header;
 
 	WARN_ON((flags != VCHI_FLAGS_NONE) &&
@@ -458,7 +457,7 @@ int32_t vchi_msg_hold(VCHI_SERVICE_HANDLE_T handle,
 	VCHI_FLAGS_T flags,
 	VCHI_HELD_MSG_T *message_handle)
 {
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_HEADER_T *header;
 
 	WARN_ON((flags != VCHI_FLAGS_NONE) &&
@@ -541,7 +540,6 @@ int32_t vchi_connect(VCHI_CONNECTION_T **connections,
 }
 EXPORT_SYMBOL(vchi_connect);
 
-
 /***********************************************************
  * Name: vchi_disconnect
  *
@@ -561,7 +559,6 @@ int32_t vchi_disconnect(VCHI_INSTANCE_T instance_handle)
 }
 EXPORT_SYMBOL(vchi_disconnect);
 
-
 /***********************************************************
  * Name: vchi_service_open
  * Name: vchi_service_create
@@ -579,8 +576,8 @@ EXPORT_SYMBOL(vchi_disconnect);
 static VCHIQ_STATUS_T shim_callback(VCHIQ_REASON_T reason,
 	VCHIQ_HEADER_T *header, VCHIQ_SERVICE_HANDLE_T handle, void *bulk_user)
 {
-	SHIM_SERVICE_T *service =
-		(SHIM_SERVICE_T *)VCHIQ_GET_SERVICE_USERDATA(handle);
+	struct shim_service *service =
+		(struct shim_service *)VCHIQ_GET_SERVICE_USERDATA(handle);
 
 	if (!service->callback)
 		goto release;
@@ -637,10 +634,10 @@ done:
 	return VCHIQ_SUCCESS;
 }
 
-static SHIM_SERVICE_T *service_alloc(VCHIQ_INSTANCE_T instance,
+static struct shim_service *service_alloc(VCHIQ_INSTANCE_T instance,
 	SERVICE_CREATION_T *setup)
 {
-	SHIM_SERVICE_T *service = kzalloc(sizeof(SHIM_SERVICE_T), GFP_KERNEL);
+	struct shim_service *service = kzalloc(sizeof(struct shim_service), GFP_KERNEL);
 
 	(void)instance;
 
@@ -657,7 +654,7 @@ static SHIM_SERVICE_T *service_alloc(VCHIQ_INSTANCE_T instance,
 	return service;
 }
 
-static void service_free(SHIM_SERVICE_T *service)
+static void service_free(struct shim_service *service)
 {
 	if (service) {
 		vchiu_queue_delete(&service->queue);
@@ -670,7 +667,7 @@ int32_t vchi_service_open(VCHI_INSTANCE_T instance_handle,
 	VCHI_SERVICE_HANDLE_T *handle)
 {
 	VCHIQ_INSTANCE_T instance = (VCHIQ_INSTANCE_T)instance_handle;
-	SHIM_SERVICE_T *service = service_alloc(instance, setup);
+	struct shim_service *service = service_alloc(instance, setup);
 
 	*handle = (VCHI_SERVICE_HANDLE_T)service;
 
@@ -703,7 +700,7 @@ int32_t vchi_service_create(VCHI_INSTANCE_T instance_handle,
 	VCHI_SERVICE_HANDLE_T *handle)
 {
 	VCHIQ_INSTANCE_T instance = (VCHIQ_INSTANCE_T)instance_handle;
-	SHIM_SERVICE_T *service = service_alloc(instance, setup);
+	struct shim_service *service = service_alloc(instance, setup);
 
 	*handle = (VCHI_SERVICE_HANDLE_T)service;
 
@@ -733,7 +730,7 @@ EXPORT_SYMBOL(vchi_service_create);
 int32_t vchi_service_close(const VCHI_SERVICE_HANDLE_T handle)
 {
 	int32_t ret = -1;
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 
 	if (service) {
 		VCHIQ_STATUS_T status = vchiq_close_service(service->handle);
@@ -751,7 +748,7 @@ EXPORT_SYMBOL(vchi_service_close);
 int32_t vchi_service_destroy(const VCHI_SERVICE_HANDLE_T handle)
 {
 	int32_t ret = -1;
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 
 	if (service) {
 		VCHIQ_STATUS_T status = vchiq_remove_service(service->handle);
@@ -772,7 +769,7 @@ int32_t vchi_service_set_option(const VCHI_SERVICE_HANDLE_T handle,
 				int value)
 {
 	int32_t ret = -1;
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	VCHIQ_SERVICE_OPTION_T vchiq_option;
 
 	switch (option) {
@@ -801,7 +798,7 @@ EXPORT_SYMBOL(vchi_service_set_option);
 int32_t vchi_get_peer_version(const VCHI_SERVICE_HANDLE_T handle, short *peer_version)
 {
 	int32_t ret = -1;
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 
 	if (service)
 	{
@@ -828,7 +825,7 @@ int32_t vchi_service_use(const VCHI_SERVICE_HANDLE_T handle)
 {
 	int32_t ret = -1;
 
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	if (service)
 		ret = vchiq_status_to_vchi(vchiq_use_service(service->handle));
 	return ret;
@@ -849,7 +846,7 @@ int32_t vchi_service_release(const VCHI_SERVICE_HANDLE_T handle)
 {
 	int32_t ret = -1;
 
-	SHIM_SERVICE_T *service = (SHIM_SERVICE_T *)handle;
+	struct shim_service *service = (struct shim_service *)handle;
 	if (service)
 		ret = vchiq_status_to_vchi(
 			vchiq_release_service(service->handle));
diff --git a/drivers/staging/vme/devices/Kconfig b/drivers/staging/vme/devices/Kconfig
index 1d2ff0cc41f1..c548dd8c91e1 100644
--- a/drivers/staging/vme/devices/Kconfig
+++ b/drivers/staging/vme/devices/Kconfig
@@ -10,16 +10,3 @@ config VME_USER
 
 	  To compile this driver as a module, choose M here. The module will
 	  be called vme_user. If unsure, say N.
-
-config VME_PIO2
-	tristate "GE PIO2 VME"
-	depends on STAGING && GPIOLIB
-	help
-	  Say Y here to include support for the GE PIO2. The PIO2 is a 6U VME
-	  slave card, implementing 32 solid-state relay switched IO lines, in
-	  4 groups of 8. Each bank of IO lines is built to function as input,
-	  output or both depending on the variant of the card.
-
-	  To compile this driver as a module, choose M here. The module will
-	  be called vme_pio2. If unsure, say N.
-
diff --git a/drivers/staging/vme/devices/Makefile b/drivers/staging/vme/devices/Makefile
index 172512cb5dbf..459742a75283 100644
--- a/drivers/staging/vme/devices/Makefile
+++ b/drivers/staging/vme/devices/Makefile
@@ -3,6 +3,3 @@
 #
 
 obj-$(CONFIG_VME_USER)		+= vme_user.o
-
-vme_pio2-objs	:= vme_pio2_cntr.o vme_pio2_gpio.o vme_pio2_core.o
-obj-$(CONFIG_VME_PIO2)         += vme_pio2.o
diff --git a/drivers/staging/vme/devices/vme_pio2.h b/drivers/staging/vme/devices/vme_pio2.h
deleted file mode 100644
index ac4a4bad4091..000000000000
--- a/drivers/staging/vme/devices/vme_pio2.h
+++ /dev/null
@@ -1,244 +0,0 @@
-#ifndef _VME_PIO2_H_
-#define _VME_PIO2_H_
-
-#define PIO2_CARDS_MAX			32
-
-#define PIO2_VARIANT_LENGTH		5
-
-#define PIO2_NUM_CHANNELS		32
-#define PIO2_NUM_IRQS			11
-#define PIO2_NUM_CNTRS			6
-
-#define PIO2_REGS_SIZE			0x40
-
-#define PIO2_REGS_DATA0			0x0
-#define PIO2_REGS_DATA1			0x1
-#define PIO2_REGS_DATA2			0x2
-#define PIO2_REGS_DATA3			0x3
-
-static const int PIO2_REGS_DATA[4] = { PIO2_REGS_DATA0, PIO2_REGS_DATA1,
-					PIO2_REGS_DATA2, PIO2_REGS_DATA3 };
-
-#define PIO2_REGS_INT_STAT0		0x8
-#define PIO2_REGS_INT_STAT1		0x9
-#define PIO2_REGS_INT_STAT2		0xa
-#define PIO2_REGS_INT_STAT3		0xb
-
-static const int PIO2_REGS_INT_STAT[4] = { PIO2_REGS_INT_STAT0,
-					PIO2_REGS_INT_STAT1,
-					PIO2_REGS_INT_STAT2,
-					PIO2_REGS_INT_STAT3 };
-
-#define PIO2_REGS_INT_STAT_CNTR		0xc
-#define PIO2_REGS_INT_MASK0		0x10
-#define PIO2_REGS_INT_MASK1		0x11
-#define PIO2_REGS_INT_MASK2		0x12
-#define PIO2_REGS_INT_MASK3		0x13
-#define PIO2_REGS_INT_MASK4		0x14
-#define PIO2_REGS_INT_MASK5		0x15
-#define PIO2_REGS_INT_MASK6		0x16
-#define PIO2_REGS_INT_MASK7		0x17
-
-static const int PIO2_REGS_INT_MASK[8] = { PIO2_REGS_INT_MASK0,
-					PIO2_REGS_INT_MASK1,
-					PIO2_REGS_INT_MASK2,
-					PIO2_REGS_INT_MASK3,
-					PIO2_REGS_INT_MASK4,
-					PIO2_REGS_INT_MASK5,
-					PIO2_REGS_INT_MASK6,
-					PIO2_REGS_INT_MASK7 };
-
-#define PIO2_REGS_CTRL			0x18
-#define PIO2_REGS_VME_VECTOR		0x19
-#define PIO2_REGS_CNTR0			0x20
-#define PIO2_REGS_CNTR1			0x22
-#define PIO2_REGS_CNTR2			0x24
-#define PIO2_REGS_CTRL_WRD0		0x26
-#define PIO2_REGS_CNTR3			0x28
-#define PIO2_REGS_CNTR4			0x2a
-#define PIO2_REGS_CNTR5			0x2c
-#define PIO2_REGS_CTRL_WRD1		0x2e
-
-#define PIO2_REGS_ID			0x30
-
-/* PIO2_REGS_DATAx (0x0 - 0x3) */
-
-static const int PIO2_CHANNEL_BANK[32] = { 0, 0, 0, 0, 0, 0, 0, 0,
-					1, 1, 1, 1, 1, 1, 1, 1,
-					2, 2, 2, 2, 2, 2, 2, 2,
-					3, 3, 3, 3, 3, 3, 3, 3 };
-
-#define PIO2_CHANNEL0_BIT		BIT(0)
-#define PIO2_CHANNEL1_BIT		BIT(1)
-#define PIO2_CHANNEL2_BIT		BIT(2)
-#define PIO2_CHANNEL3_BIT		BIT(3)
-#define PIO2_CHANNEL4_BIT		BIT(4)
-#define PIO2_CHANNEL5_BIT		BIT(5)
-#define PIO2_CHANNEL6_BIT		BIT(6)
-#define PIO2_CHANNEL7_BIT		BIT(7)
-#define PIO2_CHANNEL8_BIT		BIT(0)
-#define PIO2_CHANNEL9_BIT		BIT(1)
-#define PIO2_CHANNEL10_BIT		BIT(2)
-#define PIO2_CHANNEL11_BIT		BIT(3)
-#define PIO2_CHANNEL12_BIT		BIT(4)
-#define PIO2_CHANNEL13_BIT		BIT(5)
-#define PIO2_CHANNEL14_BIT		BIT(6)
-#define PIO2_CHANNEL15_BIT		BIT(7)
-#define PIO2_CHANNEL16_BIT		BIT(0)
-#define PIO2_CHANNEL17_BIT		BIT(1)
-#define PIO2_CHANNEL18_BIT		BIT(2)
-#define PIO2_CHANNEL19_BIT		BIT(3)
-#define PIO2_CHANNEL20_BIT		BIT(4)
-#define PIO2_CHANNEL21_BIT		BIT(5)
-#define PIO2_CHANNEL22_BIT		BIT(6)
-#define PIO2_CHANNEL23_BIT		BIT(7)
-#define PIO2_CHANNEL24_BIT		BIT(0)
-#define PIO2_CHANNEL25_BIT		BIT(1)
-#define PIO2_CHANNEL26_BIT		BIT(2)
-#define PIO2_CHANNEL27_BIT		BIT(3)
-#define PIO2_CHANNEL28_BIT		BIT(4)
-#define PIO2_CHANNEL29_BIT		BIT(5)
-#define PIO2_CHANNEL30_BIT		BIT(6)
-#define PIO2_CHANNEL31_BIT		BIT(7)
-
-static const int PIO2_CHANNEL_BIT[32] = { PIO2_CHANNEL0_BIT, PIO2_CHANNEL1_BIT,
-					PIO2_CHANNEL2_BIT, PIO2_CHANNEL3_BIT,
-					PIO2_CHANNEL4_BIT, PIO2_CHANNEL5_BIT,
-					PIO2_CHANNEL6_BIT, PIO2_CHANNEL7_BIT,
-					PIO2_CHANNEL8_BIT, PIO2_CHANNEL9_BIT,
-					PIO2_CHANNEL10_BIT, PIO2_CHANNEL11_BIT,
-					PIO2_CHANNEL12_BIT, PIO2_CHANNEL13_BIT,
-					PIO2_CHANNEL14_BIT, PIO2_CHANNEL15_BIT,
-					PIO2_CHANNEL16_BIT, PIO2_CHANNEL17_BIT,
-					PIO2_CHANNEL18_BIT, PIO2_CHANNEL19_BIT,
-					PIO2_CHANNEL20_BIT, PIO2_CHANNEL21_BIT,
-					PIO2_CHANNEL22_BIT, PIO2_CHANNEL23_BIT,
-					PIO2_CHANNEL24_BIT, PIO2_CHANNEL25_BIT,
-					PIO2_CHANNEL26_BIT, PIO2_CHANNEL27_BIT,
-					PIO2_CHANNEL28_BIT, PIO2_CHANNEL29_BIT,
-					PIO2_CHANNEL30_BIT, PIO2_CHANNEL31_BIT
-					};
-
-/* PIO2_REGS_INT_STAT_CNTR (0xc) */
-#define PIO2_COUNTER0			BIT(0)
-#define PIO2_COUNTER1			BIT(1)
-#define PIO2_COUNTER2			BIT(2)
-#define PIO2_COUNTER3			BIT(3)
-#define PIO2_COUNTER4			BIT(4)
-#define PIO2_COUNTER5			BIT(5)
-
-static const int PIO2_COUNTER[6] = { PIO2_COUNTER0, PIO2_COUNTER1,
-					PIO2_COUNTER2, PIO2_COUNTER3,
-					PIO2_COUNTER4, PIO2_COUNTER5 };
-
-/* PIO2_REGS_CTRL (0x18) */
-#define PIO2_VME_INT_MASK		0x7
-#define PIO2_LED			BIT(6)
-#define PIO2_LOOP			BIT(7)
-
-/* PIO2_REGS_VME_VECTOR (0x19) */
-#define PIO2_VME_VECTOR_SPUR		0x0
-#define PIO2_VME_VECTOR_BANK0		0x1
-#define PIO2_VME_VECTOR_BANK1		0x2
-#define PIO2_VME_VECTOR_BANK2		0x3
-#define PIO2_VME_VECTOR_BANK3		0x4
-#define PIO2_VME_VECTOR_CNTR0		0x5
-#define PIO2_VME_VECTOR_CNTR1		0x6
-#define PIO2_VME_VECTOR_CNTR2		0x7
-#define PIO2_VME_VECTOR_CNTR3		0x8
-#define PIO2_VME_VECTOR_CNTR4		0x9
-#define PIO2_VME_VECTOR_CNTR5		0xa
-
-#define PIO2_VME_VECTOR_MASK		0xf0
-
-static const int PIO2_VECTOR_BANK[4] = { PIO2_VME_VECTOR_BANK0,
-					PIO2_VME_VECTOR_BANK1,
-					PIO2_VME_VECTOR_BANK2,
-					PIO2_VME_VECTOR_BANK3 };
-
-static const int PIO2_VECTOR_CNTR[6] = { PIO2_VME_VECTOR_CNTR0,
-					PIO2_VME_VECTOR_CNTR1,
-					PIO2_VME_VECTOR_CNTR2,
-					PIO2_VME_VECTOR_CNTR3,
-					PIO2_VME_VECTOR_CNTR4,
-					PIO2_VME_VECTOR_CNTR5 };
-
-/* PIO2_REGS_CNTRx (0x20 - 0x24 & 0x28 - 0x2c) */
-
-static const int PIO2_CNTR_DATA[6] = { PIO2_REGS_CNTR0, PIO2_REGS_CNTR1,
-					PIO2_REGS_CNTR2, PIO2_REGS_CNTR3,
-					PIO2_REGS_CNTR4, PIO2_REGS_CNTR5 };
-
-/* PIO2_REGS_CTRL_WRDx (0x26 & 0x2e) */
-
-static const int PIO2_CNTR_CTRL[6] = { PIO2_REGS_CTRL_WRD0,
-					PIO2_REGS_CTRL_WRD0,
-					PIO2_REGS_CTRL_WRD0,
-					PIO2_REGS_CTRL_WRD1,
-					PIO2_REGS_CTRL_WRD1,
-					PIO2_REGS_CTRL_WRD1 };
-
-#define PIO2_CNTR_SC_DEV0		0
-#define PIO2_CNTR_SC_DEV1		(1 << 6)
-#define PIO2_CNTR_SC_DEV2		(2 << 6)
-#define PIO2_CNTR_SC_RDBACK		(3 << 6)
-
-static const int PIO2_CNTR_SC_DEV[6] = { PIO2_CNTR_SC_DEV0, PIO2_CNTR_SC_DEV1,
-					PIO2_CNTR_SC_DEV2, PIO2_CNTR_SC_DEV0,
-					PIO2_CNTR_SC_DEV1, PIO2_CNTR_SC_DEV2 };
-
-#define PIO2_CNTR_RW_LATCH		0
-#define PIO2_CNTR_RW_LSB		(1 << 4)
-#define PIO2_CNTR_RW_MSB		(2 << 4)
-#define PIO2_CNTR_RW_BOTH		(3 << 4)
-
-#define PIO2_CNTR_MODE0			0
-#define PIO2_CNTR_MODE1			(1 << 1)
-#define PIO2_CNTR_MODE2			(2 << 1)
-#define PIO2_CNTR_MODE3			(3 << 1)
-#define PIO2_CNTR_MODE4			(4 << 1)
-#define PIO2_CNTR_MODE5			(5 << 1)
-
-#define PIO2_CNTR_BCD			1
-
-enum pio2_bank_config { NOFIT, INPUT, OUTPUT, BOTH };
-enum pio2_int_config { NONE = 0, LOW2HIGH = 1, HIGH2LOW = 2, EITHER = 4 };
-
-/* Bank configuration structure */
-struct pio2_io_bank {
-	enum pio2_bank_config config;
-	u8 value;
-	enum pio2_int_config irq[8];
-};
-
-/* Counter configuration structure */
-struct pio2_cntr {
-	int mode;
-	int count;
-};
-
-struct pio2_card {
-	int id;
-	int bus;
-	long base;
-	int irq_vector;
-	int irq_level;
-	char variant[6];
-	int led;
-
-	struct vme_dev *vdev;
-	struct vme_resource *window;
-
-	struct gpio_chip gc;
-	struct pio2_io_bank bank[4];
-
-	struct pio2_cntr cntr[6];
-};
-
-int pio2_cntr_reset(struct pio2_card *card);
-
-int pio2_gpio_reset(struct pio2_card *card);
-int pio2_gpio_init(struct pio2_card *card);
-void pio2_gpio_exit(struct pio2_card *card);
-
-#endif /* _VME_PIO2_H_ */
diff --git a/drivers/staging/vme/devices/vme_pio2_cntr.c b/drivers/staging/vme/devices/vme_pio2_cntr.c
deleted file mode 100644
index 486c30c4956f..000000000000
--- a/drivers/staging/vme/devices/vme_pio2_cntr.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * GE PIO2 Counter Driver
- *
- * Author: Martyn Welch <martyn.welch@ge.com>
- * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * The PIO-2 has 6 counters, currently this code just disables the interrupts
- * and leaves them alone.
- *
- */
-
-#include <linux/device.h>
-#include <linux/types.h>
-#include <linux/gpio.h>
-#include <linux/vme.h>
-
-#include "vme_pio2.h"
-
-static int pio2_cntr_irq_set(struct pio2_card *card, int id)
-{
-	int retval;
-	u8 data;
-
-	data = PIO2_CNTR_SC_DEV[id] | PIO2_CNTR_RW_BOTH | card->cntr[id].mode;
-	retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_CTRL[id]);
-	if (retval < 0)
-		return retval;
-
-	data = card->cntr[id].count & 0xFF;
-	retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_DATA[id]);
-	if (retval < 0)
-		return retval;
-
-	data = (card->cntr[id].count >> 8) & 0xFF;
-	retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_DATA[id]);
-	if (retval < 0)
-		return retval;
-
-	return 0;
-}
-
-int pio2_cntr_reset(struct pio2_card *card)
-{
-	int i, retval = 0;
-	u8 reg;
-
-	/* Clear down all timers */
-	for (i = 0; i < 6; i++) {
-		card->cntr[i].mode = PIO2_CNTR_MODE5;
-		card->cntr[i].count = 0;
-		retval = pio2_cntr_irq_set(card, i);
-		if (retval < 0)
-			return retval;
-	}
-
-	/* Ensure all counter interrupts are cleared */
-	do {
-		retval = vme_master_read(card->window, &reg, 1,
-					 PIO2_REGS_INT_STAT_CNTR);
-		if (retval < 0)
-			return retval;
-	} while (reg != 0);
-
-	return retval;
-}
-
diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c
deleted file mode 100644
index 367535b4b77f..000000000000
--- a/drivers/staging/vme/devices/vme_pio2_core.c
+++ /dev/null
@@ -1,493 +0,0 @@
-/*
- * GE PIO2 6U VME I/O Driver
- *
- * Author: Martyn Welch <martyn.welch@ge.com>
- * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/device.h>
-#include <linux/ctype.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-#include <linux/vme.h>
-
-#include "vme_pio2.h"
-
-static const char driver_name[] = "pio2";
-
-static int bus[PIO2_CARDS_MAX];
-static int bus_num;
-static long base[PIO2_CARDS_MAX];
-static int base_num;
-static int vector[PIO2_CARDS_MAX];
-static int vector_num;
-static int level[PIO2_CARDS_MAX];
-static int level_num;
-static char *variant[PIO2_CARDS_MAX];
-static int variant_num;
-
-static bool loopback;
-
-static int pio2_match(struct vme_dev *);
-static int pio2_probe(struct vme_dev *);
-static int pio2_remove(struct vme_dev *);
-
-static int pio2_get_led(struct pio2_card *card)
-{
-	/* Can't read hardware, state saved in structure */
-	return card->led;
-}
-
-static int pio2_set_led(struct pio2_card *card, int state)
-{
-	u8 reg;
-	int retval;
-
-	reg = card->irq_level;
-
-	/* Register state inverse of led state */
-	if (!state)
-		reg |= PIO2_LED;
-
-	if (loopback)
-		reg |= PIO2_LOOP;
-
-	retval = vme_master_write(card->window, &reg, 1, PIO2_REGS_CTRL);
-	if (retval < 0)
-		return retval;
-
-	card->led = state ? 1 : 0;
-
-	return 0;
-}
-
-static void pio2_int(int level, int vector, void *ptr)
-{
-	int vec, i, channel, retval;
-	u8 reg;
-	struct pio2_card *card  = ptr;
-
-	vec = vector & ~PIO2_VME_VECTOR_MASK;
-
-	switch (vec) {
-	case 0:
-		dev_warn(&card->vdev->dev, "Spurious Interrupt\n");
-		break;
-	case 1:
-	case 2:
-	case 3:
-	case 4:
-		/* Channels 0 to 7 */
-		retval = vme_master_read(card->window, &reg, 1,
-					 PIO2_REGS_INT_STAT[vec - 1]);
-		if (retval < 0) {
-			dev_err(&card->vdev->dev,
-				"Unable to read IRQ status register\n");
-			return;
-		}
-		for (i = 0; i < 8; i++) {
-			channel = ((vec - 1) * 8) + i;
-			if (reg & PIO2_CHANNEL_BIT[channel])
-				dev_info(&card->vdev->dev,
-					 "Interrupt on I/O channel %d\n",
-					 channel);
-		}
-		break;
-	case 5:
-	case 6:
-	case 7:
-	case 8:
-	case 9:
-	case 10:
-		/* Counters are dealt with by their own handler */
-		dev_err(&card->vdev->dev,
-			"Counter interrupt\n");
-		break;
-	}
-}
-
-/*
- * We return whether this has been successful - this is used in the probe to
- * ensure we have a valid card.
- */
-static int pio2_reset_card(struct pio2_card *card)
-{
-	int retval = 0;
-	u8 data = 0;
-
-	/* Clear main register*/
-	retval = vme_master_write(card->window, &data, 1, PIO2_REGS_CTRL);
-	if (retval < 0)
-		return retval;
-
-	/* Clear VME vector */
-	retval = vme_master_write(card->window, &data, 1, PIO2_REGS_VME_VECTOR);
-	if (retval < 0)
-		return retval;
-
-	/* Reset GPIO */
-	retval = pio2_gpio_reset(card);
-	if (retval < 0)
-		return retval;
-
-	/* Reset counters */
-	retval = pio2_cntr_reset(card);
-	if (retval < 0)
-		return retval;
-
-	return 0;
-}
-
-static struct vme_driver pio2_driver = {
-	.name = driver_name,
-	.match = pio2_match,
-	.probe = pio2_probe,
-	.remove = pio2_remove,
-};
-
-static int __init pio2_init(void)
-{
-	if (bus_num == 0) {
-		pr_err("No cards, skipping registration\n");
-		return -ENODEV;
-	}
-
-	if (bus_num > PIO2_CARDS_MAX) {
-		pr_err("Driver only able to handle %d PIO2 Cards\n",
-		       PIO2_CARDS_MAX);
-		bus_num = PIO2_CARDS_MAX;
-	}
-
-	/* Register the PIO2 driver */
-	return  vme_register_driver(&pio2_driver, bus_num);
-}
-
-static int pio2_match(struct vme_dev *vdev)
-{
-	if (vdev->num >= bus_num) {
-		dev_err(&vdev->dev,
-			"The enumeration of the VMEbus to which the board is connected must be specified\n");
-		return 0;
-	}
-
-	if (vdev->num >= base_num) {
-		dev_err(&vdev->dev,
-			"The VME address for the cards registers must be specified\n");
-		return 0;
-	}
-
-	if (vdev->num >= vector_num) {
-		dev_err(&vdev->dev,
-			"The IRQ vector used by the card must be specified\n");
-		return 0;
-	}
-
-	if (vdev->num >= level_num) {
-		dev_err(&vdev->dev,
-			"The IRQ level used by the card must be specified\n");
-		return 0;
-	}
-
-	if (vdev->num >= variant_num) {
-		dev_err(&vdev->dev, "The variant of the card must be specified\n");
-		return 0;
-	}
-
-	return 1;
-}
-
-static int pio2_probe(struct vme_dev *vdev)
-{
-	struct pio2_card *card;
-	int retval;
-	int i;
-	u8 reg;
-	int vec;
-
-	card = devm_kzalloc(&vdev->dev, sizeof(*card), GFP_KERNEL);
-	if (!card)
-		return -ENOMEM;
-
-	card->id = vdev->num;
-	card->bus = bus[card->id];
-	card->base = base[card->id];
-	card->irq_vector = vector[card->id];
-	card->irq_level = level[card->id] & PIO2_VME_INT_MASK;
-	strncpy(card->variant, variant[card->id], PIO2_VARIANT_LENGTH);
-	card->vdev = vdev;
-
-	for (i = 0; i < PIO2_VARIANT_LENGTH; i++) {
-		if (!isdigit(card->variant[i])) {
-			dev_err(&card->vdev->dev, "Variant invalid\n");
-			return -EINVAL;
-		}
-	}
-
-	/*
-	 * Bottom 4 bits of VME interrupt vector used to determine source,
-	 * provided vector should only use upper 4 bits.
-	 */
-	if (card->irq_vector & ~PIO2_VME_VECTOR_MASK) {
-		dev_err(&card->vdev->dev,
-			"Invalid VME IRQ Vector, vector must not use lower 4 bits\n");
-		return -EINVAL;
-	}
-
-	/*
-	 * There is no way to determine the build variant or whether each bank
-	 * is input, output or both at run time. The inputs are also inverted
-	 * if configured as both.
-	 *
-	 * We pass in the board variant and use that to determine the
-	 * configuration of the banks.
-	 */
-	for (i = 1; i < PIO2_VARIANT_LENGTH; i++) {
-		switch (card->variant[i]) {
-		case '0':
-			card->bank[i - 1].config = NOFIT;
-			break;
-		case '1':
-		case '2':
-		case '3':
-		case '4':
-			card->bank[i - 1].config = INPUT;
-			break;
-		case '5':
-			card->bank[i - 1].config = OUTPUT;
-			break;
-		case '6':
-		case '7':
-		case '8':
-		case '9':
-			card->bank[i - 1].config = BOTH;
-			break;
-		}
-	}
-
-	/* Get a master window and position over regs */
-	card->window = vme_master_request(vdev, VME_A24, VME_SCT, VME_D16);
-	if (!card->window) {
-		dev_err(&card->vdev->dev,
-			"Unable to assign VME master resource\n");
-		return -EIO;
-	}
-
-	retval = vme_master_set(card->window, 1, card->base, 0x10000, VME_A24,
-				VME_SCT | VME_USER | VME_DATA, VME_D16);
-	if (retval) {
-		dev_err(&card->vdev->dev,
-			"Unable to configure VME master resource\n");
-		goto err_set;
-	}
-
-	/*
-	 * There is also no obvious register which we can probe to determine
-	 * whether the provided base is valid. If we can read the "ID Register"
-	 * offset and the reset function doesn't error, assume we have a valid
-	 * location.
-	 */
-	retval = vme_master_read(card->window, &reg, 1, PIO2_REGS_ID);
-	if (retval < 0) {
-		dev_err(&card->vdev->dev, "Unable to read from device\n");
-		goto err_read;
-	}
-
-	dev_dbg(&card->vdev->dev, "ID Register:%x\n", reg);
-
-	/*
-	 * Ensure all the I/O is cleared. We can't read back the states, so
-	 * this is the only method we have to ensure that the I/O is in a known
-	 * state.
-	 */
-	retval = pio2_reset_card(card);
-	if (retval) {
-		dev_err(&card->vdev->dev,
-			"Failed to reset card, is location valid?\n");
-		retval = -ENODEV;
-		goto err_reset;
-	}
-
-	/* Configure VME Interrupts */
-	reg = card->irq_level;
-	if (pio2_get_led(card))
-		reg |= PIO2_LED;
-	if (loopback)
-		reg |= PIO2_LOOP;
-	retval = vme_master_write(card->window, &reg, 1, PIO2_REGS_CTRL);
-	if (retval < 0)
-		return retval;
-
-	/* Set VME vector */
-	retval = vme_master_write(card->window, &card->irq_vector, 1,
-				  PIO2_REGS_VME_VECTOR);
-	if (retval < 0)
-		return retval;
-
-	/* Attach spurious interrupt handler. */
-	vec = card->irq_vector | PIO2_VME_VECTOR_SPUR;
-
-	retval = vme_irq_request(vdev, card->irq_level, vec,
-				 &pio2_int, card);
-	if (retval < 0) {
-		dev_err(&card->vdev->dev,
-			"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
-			 vec, card->irq_level);
-		goto err_irq;
-	}
-
-	/* Attach GPIO interrupt handlers. */
-	for (i = 0; i < 4; i++) {
-		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
-
-		retval = vme_irq_request(vdev, card->irq_level, vec,
-					 &pio2_int, card);
-		if (retval < 0) {
-			dev_err(&card->vdev->dev,
-				"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
-				 vec, card->irq_level);
-			goto err_gpio_irq;
-		}
-	}
-
-	/* Attach counter interrupt handlers. */
-	for (i = 0; i < 6; i++) {
-		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
-
-		retval = vme_irq_request(vdev, card->irq_level, vec,
-					 &pio2_int, card);
-		if (retval < 0) {
-			dev_err(&card->vdev->dev,
-				"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
-				vec, card->irq_level);
-			goto err_cntr_irq;
-		}
-	}
-
-	/* Register IO */
-	retval = pio2_gpio_init(card);
-	if (retval < 0) {
-		dev_err(&card->vdev->dev,
-			"Unable to register with GPIO framework\n");
-		goto err_gpio;
-	}
-
-	/* Set LED - This also sets interrupt level */
-	retval = pio2_set_led(card, 0);
-	if (retval < 0) {
-		dev_err(&card->vdev->dev, "Unable to set LED\n");
-		goto err_led;
-	}
-
-	dev_set_drvdata(&card->vdev->dev, card);
-
-	dev_info(&card->vdev->dev,
-		 "PIO2 (variant %s) configured at 0x%lx\n", card->variant,
-		card->base);
-
-	return 0;
-
-err_led:
-	pio2_gpio_exit(card);
-err_gpio:
-	i = 6;
-err_cntr_irq:
-	while (i > 0) {
-		i--;
-		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
-		vme_irq_free(vdev, card->irq_level, vec);
-	}
-
-	i = 4;
-err_gpio_irq:
-	while (i > 0) {
-		i--;
-		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
-		vme_irq_free(vdev, card->irq_level, vec);
-	}
-
-	vec = (card->irq_vector & PIO2_VME_VECTOR_MASK) | PIO2_VME_VECTOR_SPUR;
-	vme_irq_free(vdev, card->irq_level, vec);
-err_irq:
-	 pio2_reset_card(card);
-err_reset:
-err_read:
-	vme_master_set(card->window, 0, 0, 0, VME_A16, 0, VME_D16);
-err_set:
-	vme_master_free(card->window);
-	return retval;
-}
-
-static int pio2_remove(struct vme_dev *vdev)
-{
-	int vec;
-	int i;
-
-	struct pio2_card *card = dev_get_drvdata(&vdev->dev);
-
-	pio2_gpio_exit(card);
-
-	for (i = 0; i < 6; i++) {
-		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
-		vme_irq_free(vdev, card->irq_level, vec);
-	}
-
-	for (i = 0; i < 4; i++) {
-		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
-		vme_irq_free(vdev, card->irq_level, vec);
-	}
-
-	vec = (card->irq_vector & PIO2_VME_VECTOR_MASK) | PIO2_VME_VECTOR_SPUR;
-	vme_irq_free(vdev, card->irq_level, vec);
-
-	pio2_reset_card(card);
-
-	vme_master_set(card->window, 0, 0, 0, VME_A16, 0, VME_D16);
-
-	vme_master_free(card->window);
-
-	return 0;
-}
-
-static void __exit pio2_exit(void)
-{
-	vme_unregister_driver(&pio2_driver);
-}
-
-/* These are required for each board */
-MODULE_PARM_DESC(bus, "Enumeration of VMEbus to which the board is connected");
-module_param_hw_array(bus, int, other, &bus_num, 0444);
-
-MODULE_PARM_DESC(base, "Base VME address for PIO2 Registers");
-module_param_hw_array(base, long, other, &base_num, 0444);
-
-MODULE_PARM_DESC(vector, "VME IRQ Vector (Lower 4 bits masked)");
-module_param_hw_array(vector, int, other, &vector_num, 0444);
-
-MODULE_PARM_DESC(level, "VME IRQ Level");
-module_param_hw_array(level, int, other, &level_num, 0444);
-
-MODULE_PARM_DESC(variant, "Last 4 characters of PIO2 board variant");
-module_param_array(variant, charp, &variant_num, 0444);
-
-/* This is for debugging */
-MODULE_PARM_DESC(loopback, "Enable loopback mode on all cards");
-module_param(loopback, bool, 0444);
-
-MODULE_DESCRIPTION("GE PIO2 6U VME I/O Driver");
-MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com");
-MODULE_LICENSE("GPL");
-
-module_init(pio2_init);
-module_exit(pio2_exit);
-
diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
deleted file mode 100644
index ba9fe3bc2642..000000000000
--- a/drivers/staging/vme/devices/vme_pio2_gpio.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
- * GE PIO2 GPIO Driver
- *
- * Author: Martyn Welch <martyn.welch@ge.com>
- * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/ctype.h>
-#include <linux/gpio/driver.h>
-#include <linux/slab.h>
-#include <linux/vme.h>
-
-#include "vme_pio2.h"
-
-static const char driver_name[] = "pio2_gpio";
-
-static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset)
-{
-	u8 reg;
-	int retval;
-	struct pio2_card *card = gpiochip_get_data(chip);
-
-	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
-	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
-		dev_err(&card->vdev->dev, "Channel not available as input\n");
-		return 0;
-	}
-
-	retval = vme_master_read(card->window, &reg, 1,
-				 PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
-	if (retval < 0) {
-		dev_err(&card->vdev->dev, "Unable to read from GPIO\n");
-		return 0;
-	}
-
-	/*
-	 * Remember, input on channels configured as both input and output
-	 * are inverted!
-	 */
-	if (reg & PIO2_CHANNEL_BIT[offset]) {
-		if (card->bank[PIO2_CHANNEL_BANK[offset]].config != BOTH)
-			return 0;
-
-		return 1;
-	}
-
-	if (card->bank[PIO2_CHANNEL_BANK[offset]].config != BOTH)
-		return 1;
-
-	return 0;
-}
-
-static void pio2_gpio_set(struct gpio_chip *chip,
-			  unsigned int offset, int value)
-{
-	u8 reg;
-	int retval;
-	struct pio2_card *card = gpiochip_get_data(chip);
-
-	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
-	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
-		dev_err(&card->vdev->dev, "Channel not available as output\n");
-		return;
-	}
-
-	if (value)
-		reg = card->bank[PIO2_CHANNEL_BANK[offset]].value |
-			PIO2_CHANNEL_BIT[offset];
-	else
-		reg = card->bank[PIO2_CHANNEL_BANK[offset]].value &
-			~PIO2_CHANNEL_BIT[offset];
-
-	retval = vme_master_write(card->window, &reg, 1,
-				  PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
-	if (retval < 0) {
-		dev_err(&card->vdev->dev, "Unable to write to GPIO\n");
-		return;
-	}
-
-	card->bank[PIO2_CHANNEL_BANK[offset]].value = reg;
-}
-
-/* Directionality configured at board build - send appropriate response */
-static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned int offset)
-{
-	int data;
-	struct pio2_card *card = gpiochip_get_data(chip);
-
-	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
-	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
-		dev_err(&card->vdev->dev,
-			"Channel directionality not configurable at runtime\n");
-
-		data = -EINVAL;
-	} else {
-		data = 0;
-	}
-
-	return data;
-}
-
-/* Directionality configured at board build - send appropriate response */
-static int pio2_gpio_dir_out(struct gpio_chip *chip,
-			     unsigned int offset, int value)
-{
-	int data;
-	struct pio2_card *card = gpiochip_get_data(chip);
-
-	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
-	    (card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
-		dev_err(&card->vdev->dev,
-			"Channel directionality not configurable at runtime\n");
-
-		data = -EINVAL;
-	} else {
-		data = 0;
-	}
-
-	return data;
-}
-
-/*
- * We return whether this has been successful - this is used in the probe to
- * ensure we have a valid card.
- */
-int pio2_gpio_reset(struct pio2_card *card)
-{
-	int retval = 0;
-	int i, j;
-
-	u8 data = 0;
-
-	/* Zero output registers */
-	for (i = 0; i < 4; i++) {
-		retval = vme_master_write(card->window, &data, 1,
-					  PIO2_REGS_DATA[i]);
-		if (retval < 0)
-			return retval;
-		card->bank[i].value = 0;
-	}
-
-	/* Set input interrupt masks */
-	for (i = 0; i < 4; i++) {
-		retval = vme_master_write(card->window, &data, 1,
-					  PIO2_REGS_INT_MASK[i * 2]);
-		if (retval < 0)
-			return retval;
-
-		retval = vme_master_write(card->window, &data, 1,
-					  PIO2_REGS_INT_MASK[(i * 2) + 1]);
-		if (retval < 0)
-			return retval;
-
-		for (j = 0; j < 8; j++)
-			card->bank[i].irq[j] = NONE;
-	}
-
-	/* Ensure all I/O interrupts are cleared */
-	for (i = 0; i < 4; i++) {
-		do {
-			retval = vme_master_read(card->window, &data, 1,
-						 PIO2_REGS_INT_STAT[i]);
-			if (retval < 0)
-				return retval;
-		} while (data != 0);
-	}
-
-	return 0;
-}
-
-int pio2_gpio_init(struct pio2_card *card)
-{
-	int retval = 0;
-	char *label;
-
-	label = kasprintf(GFP_KERNEL,
-			  "%s@%s", driver_name, dev_name(&card->vdev->dev));
-	if (!label)
-		return -ENOMEM;
-
-	card->gc.label = label;
-
-	card->gc.ngpio = PIO2_NUM_CHANNELS;
-	/* Dynamic allocation of base */
-	card->gc.base = -1;
-	/* Setup pointers to chip functions */
-	card->gc.direction_input = pio2_gpio_dir_in;
-	card->gc.direction_output = pio2_gpio_dir_out;
-	card->gc.get = pio2_gpio_get;
-	card->gc.set = pio2_gpio_set;
-
-	/* This function adds a memory mapped GPIO chip */
-	retval = gpiochip_add_data(&card->gc, card);
-	if (retval) {
-		dev_err(&card->vdev->dev, "Unable to register GPIO\n");
-		kfree(card->gc.label);
-	}
-
-	return retval;
-};
-
-void pio2_gpio_exit(struct pio2_card *card)
-{
-	const char *label = card->gc.label;
-
-	gpiochip_remove(&card->gc);
-	kfree(label);
-}
-
diff --git a/drivers/staging/vme/devices/vme_user.h b/drivers/staging/vme/devices/vme_user.h
index a6cb75686fa4..19ecb05781cc 100644
--- a/drivers/staging/vme/devices/vme_user.h
+++ b/drivers/staging/vme/devices/vme_user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VME_USER_H_
 #define _VME_USER_H_
 
diff --git a/drivers/staging/vt6655/Makefile b/drivers/staging/vt6655/Makefile
index d55c3baade53..a151f30fc46f 100644
--- a/drivers/staging/vt6655/Makefile
+++ b/drivers/staging/vt6655/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # TODO: all of these should be removed
 ccflags-y := -DLINUX -D__KERNEL__ -D__NO_VERSION__
 ccflags-y += -DHOSTAP
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 9fcf2e223f71..1123b4f1e1d6 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1693,10 +1693,11 @@ static int vt6655_suspend(struct pci_dev *pcid, pm_message_t state)
 	MACbShutdown(priv);
 
 	pci_disable_device(pcid);
-	pci_set_power_state(pcid, pci_choose_state(pcid, state));
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
+	pci_set_power_state(pcid, pci_choose_state(pcid, state));
+
 	return 0;
 }
 
diff --git a/drivers/staging/vt6655/key.c b/drivers/staging/vt6655/key.c
index d7ede73a1a01..d891993b20cf 100644
--- a/drivers/staging/vt6655/key.c
+++ b/drivers/staging/vt6655/key.c
@@ -56,17 +56,19 @@ static int vnt_set_keymode(struct ieee80211_hw *hw, u8 *mac_addr,
 	}
 
 	switch (key_type) {
-	/* fallthrough */
 	case VNT_KEY_DEFAULTKEY:
 		/* default key last entry */
 		entry = MAX_KEY_TABLE - 1;
 		key->hw_key_idx = entry;
+		/* fall through */
 	case VNT_KEY_ALLGROUP:
 		key_mode |= VNT_KEY_ALLGROUP;
 		if (onfly_latch)
 			key_mode |= VNT_KEY_ONFLY_ALL;
+		/* fall through */
 	case VNT_KEY_GROUP_ADDRESS:
 		key_mode |= mode;
+		/* fall through */
 	case VNT_KEY_GROUP:
 		key_mode |= (mode << 4);
 		key_mode |= VNT_KEY_GROUP;
diff --git a/drivers/staging/vt6656/Makefile b/drivers/staging/vt6656/Makefile
index 3dbe1f89dd25..b64c0d87f612 100644
--- a/drivers/staging/vt6656/Makefile
+++ b/drivers/staging/vt6656/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # TODO: all of these should be removed
 ccflags-y := -DLINUX -D__KERNEL__ -DEXPORT_SYMTAB -D__NO_VERSION__
 ccflags-y += -DHOSTAP
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index c61422ea8846..4fd9cd64c6e8 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -382,11 +382,13 @@ void vnt_update_ifs(struct vnt_private *priv)
 			priv->difs -= 1;
 			break;
 		}
+		/* fall through */
 	case RF_AIROHA7230:
 	case RF_AL2230:
 	case RF_AL2230S:
 		if (priv->bb_type != BB_TYPE_11B)
 			break;
+		/* fall through */
 	case RF_RFMD2959:
 	case RF_VT3226:
 	case RF_VT3342A0:
diff --git a/drivers/staging/wilc1000/Makefile b/drivers/staging/wilc1000/Makefile
index d22628314305..ee7e26b886a5 100644
--- a/drivers/staging/wilc1000/Makefile
+++ b/drivers/staging/wilc1000/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_WILC1000) += wilc1000.o
 
 ccflags-y += -DFIRMWARE_1002=\"atmel/wilc1002_firmware.bin\" \
diff --git a/drivers/staging/wilc1000/coreconfigurator.c b/drivers/staging/wilc1000/coreconfigurator.c
index 622994795222..8cf886d32afb 100644
--- a/drivers/staging/wilc1000/coreconfigurator.c
+++ b/drivers/staging/wilc1000/coreconfigurator.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "coreconfigurator.h"
 #include "wilc_wlan_if.h"
 #include "wilc_wlan.h"
diff --git a/drivers/staging/wilc1000/coreconfigurator.h b/drivers/staging/wilc1000/coreconfigurator.h
index 5256f40524bf..3f5da8c58815 100644
--- a/drivers/staging/wilc1000/coreconfigurator.h
+++ b/drivers/staging/wilc1000/coreconfigurator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*!
  *  @file	coreconfigurator.h
diff --git a/drivers/staging/wilc1000/host_interface.c b/drivers/staging/wilc1000/host_interface.c
index 7b620658ec38..d69248a8c7b5 100644
--- a/drivers/staging/wilc1000/host_interface.c
+++ b/drivers/staging/wilc1000/host_interface.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/time.h>
 #include <linux/kthread.h>
@@ -238,6 +239,7 @@ static struct completion hif_driver_comp;
 static struct completion hif_wait_response;
 static struct mutex hif_deinit_lock;
 static struct timer_list periodic_rssi;
+static struct wilc_vif *periodic_rssi_vif;
 
 u8 wilc_multicast_mac_addr_list[WILC_MULTICAST_TABLE_SIZE][ETH_ALEN];
 
@@ -2272,7 +2274,7 @@ static int Handle_RemainOnChan(struct wilc_vif *vif,
 ERRORHANDLER:
 	{
 		P2P_LISTEN_STATE = 1;
-		hif_drv->remain_on_ch_timer.data = (unsigned long)vif;
+		hif_drv->remain_on_ch_timer_vif = vif;
 		mod_timer(&hif_drv->remain_on_ch_timer,
 			  jiffies +
 			  msecs_to_jiffies(pstrHostIfRemainOnChan->duration));
@@ -2360,11 +2362,13 @@ _done_:
 	return result;
 }
 
-static void ListenTimerCB(unsigned long arg)
+static void ListenTimerCB(struct timer_list *t)
 {
+	struct host_if_drv *hif_drv = from_timer(hif_drv, t,
+						      remain_on_ch_timer);
+	struct wilc_vif *vif = hif_drv->remain_on_ch_timer_vif;
 	s32 result = 0;
 	struct host_if_msg msg;
-	struct wilc_vif *vif = (struct wilc_vif *)arg;
 
 	del_timer(&vif->hif_drv->remain_on_ch_timer);
 
@@ -2417,9 +2421,9 @@ static void Handle_SetMulticastFilter(struct wilc_vif *vif,
 
 	pu8CurrByte = wid.val;
 	*pu8CurrByte++ = (strHostIfSetMulti->enabled & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 8) & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 16) & 0xFF);
-	*pu8CurrByte++ = ((strHostIfSetMulti->enabled >> 24) & 0xFF);
+	*pu8CurrByte++ = 0;
+	*pu8CurrByte++ = 0;
+	*pu8CurrByte++ = 0;
 
 	*pu8CurrByte++ = (strHostIfSetMulti->cnt & 0xFF);
 	*pu8CurrByte++ = ((strHostIfSetMulti->cnt >> 8) & 0xFF);
@@ -2643,9 +2647,10 @@ free_msg:
 	complete(&hif_thread_comp);
 }
 
-static void TimerCB_Scan(unsigned long arg)
+static void TimerCB_Scan(struct timer_list *t)
 {
-	struct wilc_vif *vif = (struct wilc_vif *)arg;
+	struct host_if_drv *hif_drv = from_timer(hif_drv, t, scan_timer);
+	struct wilc_vif *vif = hif_drv->scan_timer_vif;
 	struct host_if_msg msg;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
@@ -2655,9 +2660,11 @@ static void TimerCB_Scan(unsigned long arg)
 	wilc_enqueue_cmd(&msg);
 }
 
-static void TimerCB_Connect(unsigned long arg)
+static void TimerCB_Connect(struct timer_list *t)
 {
-	struct wilc_vif *vif = (struct wilc_vif *)arg;
+	struct host_if_drv *hif_drv = from_timer(hif_drv, t,
+						      connect_timer);
+	struct wilc_vif *vif = hif_drv->connect_timer_vif;
 	struct host_if_msg msg;
 
 	memset(&msg, 0, sizeof(struct host_if_msg));
@@ -3040,7 +3047,7 @@ int wilc_set_join_req(struct wilc_vif *vif, u8 *bssid, const u8 *ssid,
 		return -EFAULT;
 	}
 
-	hif_drv->connect_timer.data = (unsigned long)vif;
+	hif_drv->connect_timer_vif = vif;
 	mod_timer(&hif_drv->connect_timer,
 		  jiffies + msecs_to_jiffies(HOST_IF_CONNECT_TIMEOUT));
 
@@ -3283,7 +3290,7 @@ int wilc_scan(struct wilc_vif *vif, u8 scan_source, u8 scan_type,
 		return -EINVAL;
 	}
 
-	hif_drv->scan_timer.data = (unsigned long)vif;
+	hif_drv->scan_timer_vif = vif;
 	mod_timer(&hif_drv->scan_timer,
 		  jiffies + msecs_to_jiffies(HOST_IF_SCAN_TIMEOUT));
 
@@ -3309,9 +3316,9 @@ int wilc_hif_set_cfg(struct wilc_vif *vif,
 	return wilc_enqueue_cmd(&msg);
 }
 
-static void GetPeriodicRSSI(unsigned long arg)
+static void GetPeriodicRSSI(struct timer_list *unused)
 {
-	struct wilc_vif *vif = (struct wilc_vif *)arg;
+	struct wilc_vif *vif = periodic_rssi_vif;
 
 	if (!vif->hif_drv) {
 		netdev_err(vif->ndev, "Driver handler is NULL\n");
@@ -3321,7 +3328,6 @@ static void GetPeriodicRSSI(unsigned long arg)
 	if (vif->hif_drv->hif_state == HOST_IF_CONNECTED)
 		wilc_get_statistics(vif, &vif->wilc->dummy_statistics);
 
-	periodic_rssi.data = (unsigned long)vif;
 	mod_timer(&periodic_rssi, jiffies + msecs_to_jiffies(5000));
 }
 
@@ -3374,14 +3380,14 @@ int wilc_init(struct net_device *dev, struct host_if_drv **hif_drv_handler)
 			goto _fail_;
 		}
 
-		setup_timer(&periodic_rssi, GetPeriodicRSSI,
-			    (unsigned long)vif);
+		periodic_rssi_vif = vif;
+		timer_setup(&periodic_rssi, GetPeriodicRSSI, 0);
 		mod_timer(&periodic_rssi, jiffies + msecs_to_jiffies(5000));
 	}
 
-	setup_timer(&hif_drv->scan_timer, TimerCB_Scan, 0);
-	setup_timer(&hif_drv->connect_timer, TimerCB_Connect, 0);
-	setup_timer(&hif_drv->remain_on_ch_timer, ListenTimerCB, 0);
+	timer_setup(&hif_drv->scan_timer, TimerCB_Scan, 0);
+	timer_setup(&hif_drv->connect_timer, TimerCB_Connect, 0);
+	timer_setup(&hif_drv->remain_on_ch_timer, ListenTimerCB, 0);
 
 	mutex_init(&hif_drv->cfg_values_lock);
 	mutex_lock(&hif_drv->cfg_values_lock);
diff --git a/drivers/staging/wilc1000/host_interface.h b/drivers/staging/wilc1000/host_interface.h
index 1ce5ead318c7..aa914d69ab0d 100644
--- a/drivers/staging/wilc1000/host_interface.h
+++ b/drivers/staging/wilc1000/host_interface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef HOST_INT_H
 #define HOST_INT_H
 #include <linux/ieee80211.h>
@@ -279,8 +280,13 @@ struct host_if_drv {
 	struct completion comp_inactive_time;
 
 	struct timer_list scan_timer;
+	struct wilc_vif *scan_timer_vif;
+
 	struct timer_list connect_timer;
+	struct wilc_vif *connect_timer_vif;
+
 	struct timer_list remain_on_ch_timer;
+	struct wilc_vif *remain_on_ch_timer_vif;
 
 	bool IFC_UP;
 	int driver_handler_id;
diff --git a/drivers/staging/wilc1000/linux_mon.c b/drivers/staging/wilc1000/linux_mon.c
index 01efa80b4f88..91d49c4738dc 100644
--- a/drivers/staging/wilc1000/linux_mon.c
+++ b/drivers/staging/wilc1000/linux_mon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*!
  *  @file	linux_mon.c
  *  @brief	File Operations OS wrapper functionality
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
index ac5aaafa461c..8a275996d4e6 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "wilc_wfi_cfgoperations.h"
 #include "host_interface.h"
 #include <linux/errno.h>
@@ -266,7 +267,7 @@ static void update_scan_time(void)
 		last_scanned_shadow[i].time_scan = jiffies;
 }
 
-static void remove_network_from_shadow(unsigned long arg)
+static void remove_network_from_shadow(unsigned long unused)
 {
 	unsigned long now = jiffies;
 	int i, j;
@@ -287,7 +288,6 @@ static void remove_network_from_shadow(unsigned long arg)
 	}
 
 	if (last_scanned_cnt != 0) {
-		hAgingTimer.data = arg;
 		mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME));
 	}
 }
@@ -304,7 +304,6 @@ static int is_network_in_shadow(struct network_info *pstrNetworkInfo,
 	int i;
 
 	if (last_scanned_cnt == 0) {
-		hAgingTimer.data = (unsigned long)user_void;
 		mod_timer(&hAgingTimer, jiffies + msecs_to_jiffies(AGING_TIME));
 		state = -1;
 	} else {
@@ -1111,7 +1110,6 @@ static int del_key(struct wiphy *wiphy, struct net_device *netdev,
 		g_key_gtk_params.key = NULL;
 		kfree(g_key_gtk_params.seq);
 		g_key_gtk_params.seq = NULL;
-
 	}
 
 	if (key_index >= 0 && key_index <= 3) {
@@ -1617,7 +1615,7 @@ static int mgmt_tx(struct wiphy *wiphy,
 
 	*cookie = (unsigned long)buf;
 	priv->u64tx_cookie = *cookie;
-	mgmt = (const struct ieee80211_mgmt *) buf;
+	mgmt = (const struct ieee80211_mgmt *)buf;
 
 	if (ieee80211_is_mgmt(mgmt->frame_control)) {
 		mgmt_tx = kmalloc(sizeof(struct p2p_mgmt_data), GFP_KERNEL);
diff --git a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
index 85a3810d7bb5..dfb7ec272935 100644
--- a/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
+++ b/drivers/staging/wilc1000/wilc_wfi_cfgoperations.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*!
  *  @file	wilc_wfi_cfgoperations.h
  *  @brief	Definitions for the network module
diff --git a/drivers/staging/wilc1000/wilc_wfi_netdevice.h b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
index 7a36561a599e..e6f4d84971c3 100644
--- a/drivers/staging/wilc1000/wilc_wfi_netdevice.h
+++ b/drivers/staging/wilc1000/wilc_wfi_netdevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*!
  *  @file	wilc_wfi_netdevice.h
  *  @brief	Definitions for the network module
diff --git a/drivers/staging/wilc1000/wilc_wlan.c b/drivers/staging/wilc1000/wilc_wlan.c
index 9addef1f1e12..f49dfa82f1b8 100644
--- a/drivers/staging/wilc1000/wilc_wlan.c
+++ b/drivers/staging/wilc1000/wilc_wlan.c
@@ -714,7 +714,7 @@ int wilc_wlan_handle_txq(struct net_device *dev, u32 *txq_count)
 					char *bssid = ((struct tx_complete_data *)(tqe->priv))->bssid;
 
 					buffer_offset = ETH_ETHERNET_HDR_OFFSET;
-					memcpy(&txb[offset + 4], bssid, 6);
+					memcpy(&txb[offset + 8], bssid, 6);
 				} else {
 					buffer_offset = HOST_HDR_OFFSET;
 				}
diff --git a/drivers/staging/wilc1000/wilc_wlan.h b/drivers/staging/wilc1000/wilc_wlan.h
index 7a5eba9b5f47..da7173105497 100644
--- a/drivers/staging/wilc1000/wilc_wlan.h
+++ b/drivers/staging/wilc1000/wilc_wlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef WILC_WLAN_H
 #define WILC_WLAN_H
 
diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.c b/drivers/staging/wilc1000/wilc_wlan_cfg.c
index d3e5b1b302f4..19e4f85fdd27 100644
--- a/drivers/staging/wilc1000/wilc_wlan_cfg.c
+++ b/drivers/staging/wilc1000/wilc_wlan_cfg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ////////////////////////////////////////////////////////////////////////// */
 /*  */
 /* Copyright (c) Atmel Corporation.  All rights reserved. */
diff --git a/drivers/staging/wilc1000/wilc_wlan_cfg.h b/drivers/staging/wilc1000/wilc_wlan_cfg.h
index b8641a273547..08092a551840 100644
--- a/drivers/staging/wilc1000/wilc_wlan_cfg.h
+++ b/drivers/staging/wilc1000/wilc_wlan_cfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ////////////////////////////////////////////////////////////////////////// */
 /*  */
 /* Copyright (c) Atmel Corporation.  All rights reserved. */
diff --git a/drivers/staging/wilc1000/wilc_wlan_if.h b/drivers/staging/wilc1000/wilc_wlan_if.h
index f4d60057a06e..c1693cfc076d 100644
--- a/drivers/staging/wilc1000/wilc_wlan_if.h
+++ b/drivers/staging/wilc1000/wilc_wlan_if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* ///////////////////////////////////////////////////////////////////////// */
 /*  */
 /* Copyright (c) Atmel Corporation.  All rights reserved. */
diff --git a/drivers/staging/wlan-ng/Makefile b/drivers/staging/wlan-ng/Makefile
index 32b69f238c69..1d24b0f86eee 100644
--- a/drivers/staging/wlan-ng/Makefile
+++ b/drivers/staging/wlan-ng/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PRISM2_USB) += prism2_usb.o
 
 prism2_usb-y := prism2usb.o \
diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
index 178f6f5d4613..42912257e2b9 100644
--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* cfg80211 Interface for prism2_usb module */
 #include "hfa384x.h"
 #include "prism2mgmt.h"
diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index d1e8218f96fb..197f5a914e8f 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -184,11 +184,11 @@ static void hfa384x_usbin_ctlx(struct hfa384x *hw, union hfa384x_usbin *usbin,
 
 static void hfa384x_usbctlxq_run(struct hfa384x *hw);
 
-static void hfa384x_usbctlx_reqtimerfn(unsigned long data);
+static void hfa384x_usbctlx_reqtimerfn(struct timer_list *t);
 
-static void hfa384x_usbctlx_resptimerfn(unsigned long data);
+static void hfa384x_usbctlx_resptimerfn(struct timer_list *t);
 
-static void hfa384x_usb_throttlefn(unsigned long data);
+static void hfa384x_usb_throttlefn(struct timer_list *t);
 
 static void hfa384x_usbctlx_completion_task(unsigned long data);
 
@@ -558,13 +558,11 @@ void hfa384x_create(struct hfa384x *hw, struct usb_device *usb)
 	INIT_WORK(&hw->link_bh, prism2sta_processing_defer);
 	INIT_WORK(&hw->usb_work, hfa384x_usb_defer);
 
-	setup_timer(&hw->throttle, hfa384x_usb_throttlefn, (unsigned long)hw);
+	timer_setup(&hw->throttle, hfa384x_usb_throttlefn, 0);
 
-	setup_timer(&hw->resptimer, hfa384x_usbctlx_resptimerfn,
-		    (unsigned long)hw);
+	timer_setup(&hw->resptimer, hfa384x_usbctlx_resptimerfn, 0);
 
-	setup_timer(&hw->reqtimer, hfa384x_usbctlx_reqtimerfn,
-		    (unsigned long)hw);
+	timer_setup(&hw->reqtimer, hfa384x_usbctlx_reqtimerfn, 0);
 
 	usb_init_urb(&hw->rx_urb);
 	usb_init_urb(&hw->tx_urb);
@@ -574,8 +572,7 @@ void hfa384x_create(struct hfa384x *hw, struct usb_device *usb)
 	hw->state = HFA384x_STATE_INIT;
 
 	INIT_WORK(&hw->commsqual_bh, prism2sta_commsqual_defer);
-	setup_timer(&hw->commsqual_timer, prism2sta_commsqual_timer,
-		    (unsigned long)hw);
+	timer_setup(&hw->commsqual_timer, prism2sta_commsqual_timer, 0);
 }
 
 /*----------------------------------------------------------------
@@ -2460,7 +2457,7 @@ int hfa384x_drvr_start(struct hfa384x *hw)
 	 * ok
 	 */
 	result =
-	    usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status);
+	    usb_get_std_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status);
 	if (result < 0) {
 		netdev_err(hw->wlandev->netdev, "Cannot get bulk in endpoint status.\n");
 		goto done;
@@ -2469,7 +2466,7 @@ int hfa384x_drvr_start(struct hfa384x *hw)
 		netdev_err(hw->wlandev->netdev, "Failed to reset bulk in endpoint.\n");
 
 	result =
-	    usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status);
+	    usb_get_std_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status);
 	if (result < 0) {
 		netdev_err(hw->wlandev->netdev, "Cannot get bulk out endpoint status.\n");
 		goto done;
@@ -3800,9 +3797,9 @@ delresp:
  *	interrupt
  *----------------------------------------------------------------
  */
-static void hfa384x_usbctlx_reqtimerfn(unsigned long data)
+static void hfa384x_usbctlx_reqtimerfn(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, reqtimer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
@@ -3859,9 +3856,9 @@ static void hfa384x_usbctlx_reqtimerfn(unsigned long data)
  *	interrupt
  *----------------------------------------------------------------
  */
-static void hfa384x_usbctlx_resptimerfn(unsigned long data)
+static void hfa384x_usbctlx_resptimerfn(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, resptimer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
@@ -3899,9 +3896,9 @@ static void hfa384x_usbctlx_resptimerfn(unsigned long data)
  *	Interrupt
  *----------------------------------------------------------------
  */
-static void hfa384x_usb_throttlefn(unsigned long data)
+static void hfa384x_usb_throttlefn(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, throttle);
 	unsigned long flags;
 
 	spin_lock_irqsave(&hw->ctlxq.lock, flags);
diff --git a/drivers/staging/wlan-ng/prism2mgmt.c b/drivers/staging/wlan-ng/prism2mgmt.c
index c4aa9e7e7003..72070593394a 100644
--- a/drivers/staging/wlan-ng/prism2mgmt.c
+++ b/drivers/staging/wlan-ng/prism2mgmt.c
@@ -394,8 +394,9 @@ int prism2mgmt_scan_results(struct wlandevice *wlandev, void *msgp)
 		count = HFA384x_SCANRESULT_MAX;
 
 	if (req->bssindex.data >= count) {
-		pr_debug("requested index (%d) out of range (%d)\n",
-			 req->bssindex.data, count);
+		netdev_dbg(wlandev->netdev,
+			   "requested index (%d) out of range (%d)\n",
+			   req->bssindex.data, count);
 		result = 2;
 		req->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
 		goto exit;
@@ -684,7 +685,8 @@ int prism2mgmt_start(struct wlandevice *wlandev, void *msgp)
 
 	goto done;
 failed:
-	pr_debug("Failed to set a config option, result=%d\n", result);
+	netdev_dbg(wlandev->netdev,
+		   "Failed to set a config option, result=%d\n", result);
 	msg->resultcode.data = P80211ENUM_resultcode_invalid_parameters;
 
 done:
@@ -1120,15 +1122,17 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 		/* Disable monitor mode */
 		result = hfa384x_cmd_monitor(hw, HFA384x_MONITOR_DISABLE);
 		if (result) {
-			pr_debug("failed to disable monitor mode, result=%d\n",
-				 result);
+			netdev_dbg(wlandev->netdev,
+				   "failed to disable monitor mode, result=%d\n",
+				   result);
 			goto failed;
 		}
 		/* Disable port 0 */
 		result = hfa384x_drvr_disable(hw, 0);
 		if (result) {
-			pr_debug
-			("failed to disable port 0 after sniffing, result=%d\n",
+			netdev_dbg
+			(wlandev->netdev,
+			     "failed to disable port 0 after sniffing, result=%d\n",
 			     result);
 			goto failed;
 		}
@@ -1140,8 +1144,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 						  HFA384x_RID_CNFWEPFLAGS,
 						  hw->presniff_wepflags);
 		if (result) {
-			pr_debug
-			    ("failed to restore wepflags=0x%04x, result=%d\n",
+			netdev_dbg
+			    (wlandev->netdev,
+			     "failed to restore wepflags=0x%04x, result=%d\n",
 			     hw->presniff_wepflags, result);
 			goto failed;
 		}
@@ -1153,8 +1158,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 						  HFA384x_RID_CNFPORTTYPE,
 						  word);
 			if (result) {
-				pr_debug
-				    ("failed to restore porttype, result=%d\n",
+				netdev_dbg
+				    (wlandev->netdev,
+				     "failed to restore porttype, result=%d\n",
 				     result);
 				goto failed;
 			}
@@ -1162,8 +1168,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 			/* Enable the port */
 			result = hfa384x_drvr_enable(hw, 0);
 			if (result) {
-				pr_debug("failed to enable port to presniff setting, result=%d\n",
-					 result);
+				netdev_dbg(wlandev->netdev,
+					   "failed to enable port to presniff setting, result=%d\n",
+					   result);
 				goto failed;
 			}
 		} else {
@@ -1182,8 +1189,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 						  HFA384x_RID_CNFPORTTYPE,
 						  &(hw->presniff_port_type));
 				if (result) {
-					pr_debug
-					("failed to read porttype, result=%d\n",
+					netdev_dbg
+					(wlandev->netdev,
+					     "failed to read porttype, result=%d\n",
 					     result);
 					goto failed;
 				}
@@ -1192,24 +1200,27 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 						  HFA384x_RID_CNFWEPFLAGS,
 						  &(hw->presniff_wepflags));
 				if (result) {
-					pr_debug
-					("failed to read wepflags, result=%d\n",
+					netdev_dbg
+					(wlandev->netdev,
+					     "failed to read wepflags, result=%d\n",
 					     result);
 					goto failed;
 				}
 				hfa384x_drvr_stop(hw);
 				result = hfa384x_drvr_start(hw);
 				if (result) {
-					pr_debug("failed to restart the card for sniffing, result=%d\n",
-						 result);
+					netdev_dbg(wlandev->netdev,
+						   "failed to restart the card for sniffing, result=%d\n",
+						   result);
 					goto failed;
 				}
 			} else {
 				/* Disable the port */
 				result = hfa384x_drvr_disable(hw, 0);
 				if (result) {
-					pr_debug("failed to enable port for sniffing, result=%d\n",
-						 result);
+					netdev_dbg(wlandev->netdev,
+						   "failed to enable port for sniffing, result=%d\n",
+						   result);
 					goto failed;
 				}
 			}
@@ -1225,8 +1236,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 		hw->sniff_channel = word;
 
 		if (result) {
-			pr_debug("failed to set channel %d, result=%d\n",
-				 word, result);
+			netdev_dbg(wlandev->netdev,
+				   "failed to set channel %d, result=%d\n",
+				   word, result);
 			goto failed;
 		}
 
@@ -1238,8 +1250,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 						  HFA384x_RID_CNFPORTTYPE,
 						  word);
 			if (result) {
-				pr_debug
-				    ("failed to set porttype %d, result=%d\n",
+				netdev_dbg
+				    (wlandev->netdev,
+				     "failed to set porttype %d, result=%d\n",
 				     word, result);
 				goto failed;
 			}
@@ -1257,8 +1270,9 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 			}
 
 			if (result) {
-				pr_debug
-				  ("failed to set wepflags=0x%04x, result=%d\n",
+				netdev_dbg
+				  (wlandev->netdev,
+				   "failed to set wepflags=0x%04x, result=%d\n",
 				   word, result);
 				goto failed;
 			}
@@ -1283,16 +1297,18 @@ int prism2mgmt_wlansniff(struct wlandevice *wlandev, void *msgp)
 		/* Enable the port */
 		result = hfa384x_drvr_enable(hw, 0);
 		if (result) {
-			pr_debug
-			    ("failed to enable port for sniffing, result=%d\n",
+			netdev_dbg
+			    (wlandev->netdev,
+			     "failed to enable port for sniffing, result=%d\n",
 			     result);
 			goto failed;
 		}
 		/* Enable monitor mode */
 		result = hfa384x_cmd_monitor(hw, HFA384x_MONITOR_ENABLE);
 		if (result) {
-			pr_debug("failed to enable monitor mode, result=%d\n",
-				 result);
+			netdev_dbg(wlandev->netdev,
+				   "failed to enable monitor mode, result=%d\n",
+				   result);
 			goto failed;
 		}
 
diff --git a/drivers/staging/wlan-ng/prism2mgmt.h b/drivers/staging/wlan-ng/prism2mgmt.h
index 88b979ff68b3..c062418f1202 100644
--- a/drivers/staging/wlan-ng/prism2mgmt.h
+++ b/drivers/staging/wlan-ng/prism2mgmt.h
@@ -109,7 +109,7 @@ int prism2mgmt_get_grpaddr_index(u32 did);
 void prism2sta_processing_defer(struct work_struct *data);
 
 void prism2sta_commsqual_defer(struct work_struct *data);
-void prism2sta_commsqual_timer(unsigned long data);
+void prism2sta_commsqual_timer(struct timer_list *t);
 
 /* Interface callback functions, passing data back up to the cfg80211 layer */
 void prism2_connect_result(struct wlandevice *wlandev, u8 failed);
diff --git a/drivers/staging/wlan-ng/prism2sta.c b/drivers/staging/wlan-ng/prism2sta.c
index c9df45063ab3..99316b9a4e49 100644
--- a/drivers/staging/wlan-ng/prism2sta.c
+++ b/drivers/staging/wlan-ng/prism2sta.c
@@ -1447,7 +1447,7 @@ static void prism2sta_inf_linkstatus(struct wlandevice *wlandev,
 {
 	struct hfa384x *hw = wlandev->priv;
 
-	hw->link_status_new = inf->info.linkstatus.linkstatus;
+	hw->link_status_new = le16_to_cpu(inf->info.linkstatus.linkstatus);
 
 	schedule_work(&hw->link_bh);
 }
@@ -2004,9 +2004,9 @@ void prism2sta_commsqual_defer(struct work_struct *data)
 	mod_timer(&hw->commsqual_timer, jiffies + HZ);
 }
 
-void prism2sta_commsqual_timer(unsigned long data)
+void prism2sta_commsqual_timer(struct timer_list *t)
 {
-	struct hfa384x *hw = (struct hfa384x *)data;
+	struct hfa384x *hw = from_timer(hw, t, commsqual_timer);
 
 	schedule_work(&hw->commsqual_bh);
 }
diff --git a/drivers/staging/wlan-ng/prism2usb.c b/drivers/staging/wlan-ng/prism2usb.c
index bfb6b0a6528d..b5ba176004c1 100644
--- a/drivers/staging/wlan-ng/prism2usb.c
+++ b/drivers/staging/wlan-ng/prism2usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "hfa384x_usb.c"
 #include "prism2mgmt.c"
 #include "prism2mib.c"
diff --git a/drivers/staging/xgifb/XGI_main.h b/drivers/staging/xgifb/XGI_main.h
index 7a80a90f229f..a3af1cbbf8ee 100644
--- a/drivers/staging/xgifb/XGI_main.h
+++ b/drivers/staging/xgifb/XGI_main.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XGIFB_MAIN
 #define _XGIFB_MAIN
 /* ------------------- Constant Definitions ------------------------- */
diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index b450c740f626..b813f1d460ce 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -1697,7 +1697,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	if (XGIfb_get_dram_size(xgifb_info)) {
 		xgifb_info->video_size = min_t(unsigned long, video_size_max,
-						SZ_16M);
+					       SZ_16M);
 	} else if (xgifb_info->video_size > video_size_max) {
 		xgifb_info->video_size = video_size_max;
 	}
@@ -1736,7 +1736,7 @@ static int xgifb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	hw_info->pjVideoMemoryAddress =
 		ioremap_wc(xgifb_info->video_base, xgifb_info->video_size);
 	xgifb_info->mmio_vbase = ioremap(xgifb_info->mmio_base,
-					    xgifb_info->mmio_size);
+					 xgifb_info->mmio_size);
 
 	dev_info(&pdev->dev,
 		 "Framebuffer at 0x%llx, mapped to 0x%p, size %dk\n",
diff --git a/drivers/staging/xgifb/XGIfb.h b/drivers/staging/xgifb/XGIfb.h
index af50362395d5..982c676c16c6 100644
--- a/drivers/staging/xgifb/XGIfb.h
+++ b/drivers/staging/xgifb/XGIfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_XGIFB
 #define _LINUX_XGIFB
 #include "vgatypes.h"
diff --git a/drivers/staging/xgifb/vb_def.h b/drivers/staging/xgifb/vb_def.h
index 94e2e3c7c264..0311e2682d27 100644
--- a/drivers/staging/xgifb/vb_def.h
+++ b/drivers/staging/xgifb/vb_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VB_DEF_
 #define _VB_DEF_
 #include "../../video/fbdev/sis/initdef.h"
diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c
index 591a3c9babf5..ac1c815a3c5e 100644
--- a/drivers/staging/xgifb/vb_init.c
+++ b/drivers/staging/xgifb/vb_init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/delay.h>
 #include <linux/vmalloc.h>
 
diff --git a/drivers/staging/xgifb/vb_init.h b/drivers/staging/xgifb/vb_init.h
index e835054b87bf..2f8a70133ebd 100644
--- a/drivers/staging/xgifb/vb_init.h
+++ b/drivers/staging/xgifb/vb_init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VBINIT_
 #define _VBINIT_
 unsigned char XGIInitNew(struct pci_dev *pdev);
diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index cea128bede52..e9d930f150cb 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/delay.h>
 #include "XGIfb.h"
 
@@ -5046,7 +5047,7 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 				  unsigned short ModeIdIndex,
 				  struct vb_device_info *pVBInfo)
 {
-	const u8 LCDARefreshIndex[] = {
+	static const u8 LCDARefreshIndex[] = {
 		0x00, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x00 };
 
 	unsigned short RefreshRateTableIndex, i, index, temp;
@@ -5479,8 +5480,9 @@ unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
 						   ModeIdIndex))
 				return 0;
 
-		pVBInfo->ModeType = XGI330_EModeIDTable[ModeIdIndex].
-						Ext_ModeFlag & ModeTypeMask;
+		pVBInfo->ModeType =
+			XGI330_EModeIDTable[ModeIdIndex].Ext_ModeFlag
+			& ModeTypeMask;
 
 		pVBInfo->SetFlag = 0;
 		pVBInfo->VBInfo = DisableCRT2Display;
diff --git a/drivers/staging/xgifb/vb_setmode.h b/drivers/staging/xgifb/vb_setmode.h
index c6317ab00474..5904ed1f2686 100644
--- a/drivers/staging/xgifb/vb_setmode.h
+++ b/drivers/staging/xgifb/vb_setmode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VBSETMODE_
 #define _VBSETMODE_
 
diff --git a/drivers/staging/xgifb/vb_struct.h b/drivers/staging/xgifb/vb_struct.h
index 2fd1a5935e1d..e256f72f6d8a 100644
--- a/drivers/staging/xgifb/vb_struct.h
+++ b/drivers/staging/xgifb/vb_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VB_STRUCT_
 #define _VB_STRUCT_
 #include "../../video/fbdev/sis/vstruct.h"
diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h
index 31dd52c513df..0da63e1da32f 100644
--- a/drivers/staging/xgifb/vb_table.h
+++ b/drivers/staging/xgifb/vb_table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VB_TABLE_
 #define _VB_TABLE_
 static const struct SiS_MCLKData XGI340New_MCLKData[] = {
diff --git a/drivers/staging/xgifb/vb_util.h b/drivers/staging/xgifb/vb_util.h
index 052694e75053..0f6d5aac04f6 100644
--- a/drivers/staging/xgifb/vb_util.h
+++ b/drivers/staging/xgifb/vb_util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VBUTIL_
 #define _VBUTIL_
 static inline void xgifb_reg_set(unsigned long port, u8 index, u8 data)
diff --git a/drivers/staging/xgifb/vgatypes.h b/drivers/staging/xgifb/vgatypes.h
index de80e5c108dc..22919f2368d5 100644
--- a/drivers/staging/xgifb/vgatypes.h
+++ b/drivers/staging/xgifb/vgatypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VGATYPES_
 #define _VGATYPES_
 
diff --git a/drivers/target/Makefile b/drivers/target/Makefile
index e619c0266a79..45634747377e 100644
--- a/drivers/target/Makefile
+++ b/drivers/target/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 target_core_mod-y		:= target_core_configfs.o \
 				   target_core_device.o \
diff --git a/drivers/target/iscsi/Makefile b/drivers/target/iscsi/Makefile
index 0f18295e05bc..8c9ae96b760d 100644
--- a/drivers/target/iscsi/Makefile
+++ b/drivers/target/iscsi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 iscsi_target_mod-y +=		iscsi_target_parameters.o \
 				iscsi_target_seq_pdu_list.o \
 				iscsi_target_auth.o \
diff --git a/drivers/target/iscsi/cxgbit/Makefile b/drivers/target/iscsi/cxgbit/Makefile
index 4893ec29b6b3..d16aaae7ba2a 100644
--- a/drivers/target/iscsi/cxgbit/Makefile
+++ b/drivers/target/iscsi/cxgbit/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Idrivers/net/ethernet/chelsio/cxgb4
 ccflags-y += -Idrivers/net/ethernet/chelsio/libcxgb
 ccflags-y += -Idrivers/target/iscsi
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 5001261f5d69..9e67c7678c86 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -372,6 +372,8 @@ struct iscsi_np *iscsit_add_np(
 	init_completion(&np->np_restart_comp);
 	INIT_LIST_HEAD(&np->np_list);
 
+	timer_setup(&np->np_login_timer, iscsi_handle_login_thread_timeout, 0);
+
 	ret = iscsi_target_setup_login_socket(np, sockaddr);
 	if (ret != 0) {
 		kfree(np);
diff --git a/drivers/target/iscsi/iscsi_target.h b/drivers/target/iscsi/iscsi_target.h
index e0db2ceb0f87..42de1843aa40 100644
--- a/drivers/target/iscsi/iscsi_target.h
+++ b/drivers/target/iscsi/iscsi_target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_H
 #define ISCSI_TARGET_H
 
diff --git a/drivers/target/iscsi/iscsi_target_auth.h b/drivers/target/iscsi/iscsi_target_auth.h
index 1b91c13cc965..d5600ac30b53 100644
--- a/drivers/target/iscsi/iscsi_target_auth.h
+++ b/drivers/target/iscsi/iscsi_target_auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ISCSI_CHAP_H_
 #define _ISCSI_CHAP_H_
 
diff --git a/drivers/target/iscsi/iscsi_target_datain_values.h b/drivers/target/iscsi/iscsi_target_datain_values.h
index 16edeeeb7777..a420fbd37969 100644
--- a/drivers/target/iscsi/iscsi_target_datain_values.h
+++ b/drivers/target/iscsi/iscsi_target_datain_values.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_DATAIN_VALUES_H
 #define ISCSI_TARGET_DATAIN_VALUES_H
 
diff --git a/drivers/target/iscsi/iscsi_target_device.h b/drivers/target/iscsi/iscsi_target_device.h
index 06dbff5cd520..ab2166f17785 100644
--- a/drivers/target/iscsi/iscsi_target_device.h
+++ b/drivers/target/iscsi/iscsi_target_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_DEVICE_H
 #define ISCSI_TARGET_DEVICE_H
 
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index 7fe2aa73cff6..718fe9a1b709 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -749,9 +749,9 @@ int iscsit_check_post_dataout(
 	}
 }
 
-static void iscsit_handle_time2retain_timeout(unsigned long data)
+void iscsit_handle_time2retain_timeout(struct timer_list *t)
 {
-	struct iscsi_session *sess = (struct iscsi_session *) data;
+	struct iscsi_session *sess = from_timer(sess, t, time2retain_timer);
 	struct iscsi_portal_group *tpg = sess->tpg;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
 
@@ -809,14 +809,10 @@ void iscsit_start_time2retain_handler(struct iscsi_session *sess)
 	pr_debug("Starting Time2Retain timer for %u seconds on"
 		" SID: %u\n", sess->sess_ops->DefaultTime2Retain, sess->sid);
 
-	init_timer(&sess->time2retain_timer);
-	sess->time2retain_timer.expires =
-		(get_jiffies_64() + sess->sess_ops->DefaultTime2Retain * HZ);
-	sess->time2retain_timer.data = (unsigned long)sess;
-	sess->time2retain_timer.function = iscsit_handle_time2retain_timeout;
 	sess->time2retain_timer_flags &= ~ISCSI_TF_STOP;
 	sess->time2retain_timer_flags |= ISCSI_TF_RUNNING;
-	add_timer(&sess->time2retain_timer);
+	mod_timer(&sess->time2retain_timer,
+		  jiffies + sess->sess_ops->DefaultTime2Retain * HZ);
 }
 
 /*
diff --git a/drivers/target/iscsi/iscsi_target_erl0.h b/drivers/target/iscsi/iscsi_target_erl0.h
index 3822d9cd1230..883ebf6d36cf 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.h
+++ b/drivers/target/iscsi/iscsi_target_erl0.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_ERL0_H
 #define ISCSI_TARGET_ERL0_H
 
@@ -11,6 +12,7 @@ extern void iscsit_set_dataout_sequence_values(struct iscsi_cmd *);
 extern int iscsit_check_pre_dataout(struct iscsi_cmd *, unsigned char *);
 extern int iscsit_check_post_dataout(struct iscsi_cmd *, unsigned char *, u8);
 extern void iscsit_start_time2retain_handler(struct iscsi_session *);
+extern void iscsit_handle_time2retain_timeout(struct timer_list *t);
 extern int iscsit_stop_time2retain_timer(struct iscsi_session *);
 extern void iscsit_connection_reinstatement_rcfr(struct iscsi_conn *);
 extern void iscsit_cause_connection_reinstatement(struct iscsi_conn *, int);
diff --git a/drivers/target/iscsi/iscsi_target_erl1.c b/drivers/target/iscsi/iscsi_target_erl1.c
index fe9b7f1e44ac..76184094a0cf 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.c
+++ b/drivers/target/iscsi/iscsi_target_erl1.c
@@ -1148,11 +1148,11 @@ static int iscsit_set_dataout_timeout_values(
 /*
  *	NOTE: Called from interrupt (timer) context.
  */
-static void iscsit_handle_dataout_timeout(unsigned long data)
+void iscsit_handle_dataout_timeout(struct timer_list *t)
 {
 	u32 pdu_length = 0, pdu_offset = 0;
 	u32 r2t_length = 0, r2t_offset = 0;
-	struct iscsi_cmd *cmd = (struct iscsi_cmd *) data;
+	struct iscsi_cmd *cmd = from_timer(cmd, t, dataout_timer);
 	struct iscsi_conn *conn = cmd->conn;
 	struct iscsi_session *sess = NULL;
 	struct iscsi_node_attrib *na;
@@ -1264,13 +1264,9 @@ void iscsit_start_dataout_timer(
 	pr_debug("Starting DataOUT timer for ITT: 0x%08x on"
 		" CID: %hu.\n", cmd->init_task_tag, conn->cid);
 
-	init_timer(&cmd->dataout_timer);
-	cmd->dataout_timer.expires = (get_jiffies_64() + na->dataout_timeout * HZ);
-	cmd->dataout_timer.data = (unsigned long)cmd;
-	cmd->dataout_timer.function = iscsit_handle_dataout_timeout;
 	cmd->dataout_timer_flags &= ~ISCSI_TF_STOP;
 	cmd->dataout_timer_flags |= ISCSI_TF_RUNNING;
-	add_timer(&cmd->dataout_timer);
+	mod_timer(&cmd->dataout_timer, jiffies + na->dataout_timeout * HZ);
 }
 
 void iscsit_stop_dataout_timer(struct iscsi_cmd *cmd)
diff --git a/drivers/target/iscsi/iscsi_target_erl1.h b/drivers/target/iscsi/iscsi_target_erl1.h
index 54d36bd25bea..1f6973f87fea 100644
--- a/drivers/target/iscsi/iscsi_target_erl1.h
+++ b/drivers/target/iscsi/iscsi_target_erl1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_ERL1_H
 #define ISCSI_TARGET_ERL1_H
 
@@ -29,6 +30,7 @@ extern int iscsit_execute_ooo_cmdsns(struct iscsi_session *);
 extern int iscsit_execute_cmd(struct iscsi_cmd *, int);
 extern int iscsit_handle_ooo_cmdsn(struct iscsi_session *, struct iscsi_cmd *, u32);
 extern void iscsit_remove_ooo_cmdsn(struct iscsi_session *, struct iscsi_ooo_cmdsn *);
+extern void iscsit_handle_dataout_timeout(struct timer_list *t);
 extern void iscsit_mod_dataout_timer(struct iscsi_cmd *);
 extern void iscsit_start_dataout_timer(struct iscsi_cmd *, struct iscsi_conn *);
 extern void iscsit_stop_dataout_timer(struct iscsi_cmd *);
diff --git a/drivers/target/iscsi/iscsi_target_erl2.h b/drivers/target/iscsi/iscsi_target_erl2.h
index 634d01e13652..93e180d68d07 100644
--- a/drivers/target/iscsi/iscsi_target_erl2.h
+++ b/drivers/target/iscsi/iscsi_target_erl2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_ERL2_H
 #define ISCSI_TARGET_ERL2_H
 
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index dc13afbd4c88..64c5a57b92e4 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -333,6 +333,9 @@ static int iscsi_login_zero_tsih_s1(
 	spin_lock_init(&sess->session_usage_lock);
 	spin_lock_init(&sess->ttt_lock);
 
+	timer_setup(&sess->time2retain_timer,
+		    iscsit_handle_time2retain_timeout, 0);
+
 	idr_preload(GFP_KERNEL);
 	spin_lock_bh(&sess_idr_lock);
 	ret = idr_alloc(&sess_idr, NULL, 0, 0, GFP_NOWAIT);
@@ -839,9 +842,9 @@ void iscsi_post_login_handler(
 	iscsit_dec_conn_usage_count(conn);
 }
 
-static void iscsi_handle_login_thread_timeout(unsigned long data)
+void iscsi_handle_login_thread_timeout(struct timer_list *t)
 {
-	struct iscsi_np *np = (struct iscsi_np *) data;
+	struct iscsi_np *np = from_timer(np, t, np_login_timer);
 
 	spin_lock_bh(&np->np_thread_lock);
 	pr_err("iSCSI Login timeout on Network Portal %pISpc\n",
@@ -866,13 +869,9 @@ static void iscsi_start_login_thread_timer(struct iscsi_np *np)
 	 * point we do not have access to ISCSI_TPG_ATTRIB(tpg)->login_timeout
 	 */
 	spin_lock_bh(&np->np_thread_lock);
-	init_timer(&np->np_login_timer);
-	np->np_login_timer.expires = (get_jiffies_64() + TA_LOGIN_TIMEOUT * HZ);
-	np->np_login_timer.data = (unsigned long)np;
-	np->np_login_timer.function = iscsi_handle_login_thread_timeout;
 	np->np_login_timer_flags &= ~ISCSI_TF_STOP;
 	np->np_login_timer_flags |= ISCSI_TF_RUNNING;
-	add_timer(&np->np_login_timer);
+	mod_timer(&np->np_login_timer, jiffies + TA_LOGIN_TIMEOUT * HZ);
 
 	pr_debug("Added timeout timer to iSCSI login request for"
 			" %u seconds.\n", TA_LOGIN_TIMEOUT);
@@ -1266,6 +1265,10 @@ static int __iscsi_target_login_thread(struct iscsi_np *np)
 	pr_debug("Moving to TARG_CONN_STATE_FREE.\n");
 	conn->conn_state = TARG_CONN_STATE_FREE;
 
+	timer_setup(&conn->nopin_response_timer,
+		    iscsit_handle_nopin_response_timeout, 0);
+	timer_setup(&conn->nopin_timer, iscsit_handle_nopin_timeout, 0);
+
 	if (iscsit_conn_set_transport(conn, np->np_transport) < 0) {
 		kfree(conn);
 		return 1;
diff --git a/drivers/target/iscsi/iscsi_target_login.h b/drivers/target/iscsi/iscsi_target_login.h
index 0e1fd6cedd54..74ac3abc44a0 100644
--- a/drivers/target/iscsi/iscsi_target_login.h
+++ b/drivers/target/iscsi/iscsi_target_login.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_LOGIN_H
 #define ISCSI_TARGET_LOGIN_H
 
@@ -24,5 +25,6 @@ extern void iscsi_post_login_handler(struct iscsi_np *, struct iscsi_conn *, u8)
 extern void iscsi_target_login_sess_out(struct iscsi_conn *, struct iscsi_np *,
 				bool, bool);
 extern int iscsi_target_login_thread(void *);
+extern void iscsi_handle_login_thread_timeout(struct timer_list *t);
 
 #endif   /*** ISCSI_TARGET_LOGIN_H ***/
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 7a6751fecd32..b686e2ce9c0e 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -559,9 +559,15 @@ static void iscsi_target_login_drop(struct iscsi_conn *conn, struct iscsi_login
 	iscsi_target_login_sess_out(conn, np, zero_tsih, true);
 }
 
-static void iscsi_target_login_timeout(unsigned long data)
+struct conn_timeout {
+	struct timer_list timer;
+	struct iscsi_conn *conn;
+};
+
+static void iscsi_target_login_timeout(struct timer_list *t)
 {
-	struct iscsi_conn *conn = (struct iscsi_conn *)data;
+	struct conn_timeout *timeout = from_timer(timeout, t, timer);
+	struct iscsi_conn *conn = timeout->conn;
 
 	pr_debug("Entering iscsi_target_login_timeout >>>>>>>>>>>>>>>>>>>\n");
 
@@ -580,7 +586,7 @@ static void iscsi_target_do_login_rx(struct work_struct *work)
 	struct iscsi_np *np = login->np;
 	struct iscsi_portal_group *tpg = conn->tpg;
 	struct iscsi_tpg_np *tpg_np = conn->tpg_np;
-	struct timer_list login_timer;
+	struct conn_timeout timeout;
 	int rc, zero_tsih = login->zero_tsih;
 	bool state;
 
@@ -618,15 +624,14 @@ static void iscsi_target_do_login_rx(struct work_struct *work)
 	conn->login_kworker = current;
 	allow_signal(SIGINT);
 
-	init_timer(&login_timer);
-	login_timer.expires = (get_jiffies_64() + TA_LOGIN_TIMEOUT * HZ);
-	login_timer.data = (unsigned long)conn;
-	login_timer.function = iscsi_target_login_timeout;
-	add_timer(&login_timer);
-	pr_debug("Starting login_timer for %s/%d\n", current->comm, current->pid);
+	timeout.conn = conn;
+	timer_setup_on_stack(&timeout.timer, iscsi_target_login_timeout, 0);
+	mod_timer(&timeout.timer, jiffies + TA_LOGIN_TIMEOUT * HZ);
+	pr_debug("Starting login timer for %s/%d\n", current->comm, current->pid);
 
 	rc = conn->conn_transport->iscsit_get_login_rx(conn, login);
-	del_timer_sync(&login_timer);
+	del_timer_sync(&timeout.timer);
+	destroy_timer_on_stack(&timeout.timer);
 	flush_signals(current);
 	conn->login_kworker = NULL;
 
diff --git a/drivers/target/iscsi/iscsi_target_nego.h b/drivers/target/iscsi/iscsi_target_nego.h
index 53438bfca4c6..835e1b769b3f 100644
--- a/drivers/target/iscsi/iscsi_target_nego.h
+++ b/drivers/target/iscsi/iscsi_target_nego.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_NEGO_H
 #define ISCSI_TARGET_NEGO_H
 
diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.h b/drivers/target/iscsi/iscsi_target_nodeattrib.h
index 79cdf06ade48..ce074cb54579 100644
--- a/drivers/target/iscsi/iscsi_target_nodeattrib.h
+++ b/drivers/target/iscsi/iscsi_target_nodeattrib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_NODEATTRIB_H
 #define ISCSI_TARGET_NODEATTRIB_H
 
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index c47b73f57528..daf47f38e081 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_PARAMETERS_H
 #define ISCSI_PARAMETERS_H
 
diff --git a/drivers/target/iscsi/iscsi_target_seq_pdu_list.h b/drivers/target/iscsi/iscsi_target_seq_pdu_list.h
index be1234362271..5a0907027973 100644
--- a/drivers/target/iscsi/iscsi_target_seq_pdu_list.h
+++ b/drivers/target/iscsi/iscsi_target_seq_pdu_list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_SEQ_AND_PDU_LIST_H
 #define ISCSI_SEQ_AND_PDU_LIST_H
 
diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c
index 411cb266a47d..df0a39811dc2 100644
--- a/drivers/target/iscsi/iscsi_target_stat.c
+++ b/drivers/target/iscsi/iscsi_target_stat.c
@@ -187,7 +187,7 @@ static struct configfs_attribute *iscsi_stat_instance_attrs[] = {
 	NULL,
 };
 
-struct config_item_type iscsi_stat_instance_cit = {
+const struct config_item_type iscsi_stat_instance_cit = {
 	.ct_attrs		= iscsi_stat_instance_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -249,7 +249,7 @@ static struct configfs_attribute *iscsi_stat_sess_err_attrs[] = {
 	NULL,
 };
 
-struct config_item_type iscsi_stat_sess_err_cit = {
+const struct config_item_type iscsi_stat_sess_err_cit = {
 	.ct_attrs		= iscsi_stat_sess_err_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -390,7 +390,7 @@ static struct configfs_attribute *iscsi_stat_tgt_attr_attrs[] = {
 	NULL,
 };
 
-struct config_item_type iscsi_stat_tgt_attr_cit = {
+const struct config_item_type iscsi_stat_tgt_attr_cit = {
 	.ct_attrs		= iscsi_stat_tgt_attr_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -522,7 +522,7 @@ static struct configfs_attribute *iscsi_stat_login_stats_attrs[] = {
 	NULL,
 };
 
-struct config_item_type iscsi_stat_login_cit = {
+const struct config_item_type iscsi_stat_login_cit = {
 	.ct_attrs		= iscsi_stat_login_stats_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -579,7 +579,7 @@ static struct configfs_attribute *iscsi_stat_logout_stats_attrs[] = {
 	NULL,
 };
 
-struct config_item_type iscsi_stat_logout_cit = {
+const struct config_item_type iscsi_stat_logout_cit = {
 	.ct_attrs		= iscsi_stat_logout_stats_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -801,7 +801,7 @@ static struct configfs_attribute *iscsi_stat_sess_stats_attrs[] = {
 	NULL,
 };
 
-struct config_item_type iscsi_stat_sess_cit = {
+const struct config_item_type iscsi_stat_sess_cit = {
 	.ct_attrs		= iscsi_stat_sess_stats_attrs,
 	.ct_owner		= THIS_MODULE,
 };
diff --git a/drivers/target/iscsi/iscsi_target_tmr.h b/drivers/target/iscsi/iscsi_target_tmr.h
index 64cc5c07e47c..301f0936bd8e 100644
--- a/drivers/target/iscsi/iscsi_target_tmr.h
+++ b/drivers/target/iscsi/iscsi_target_tmr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_TMR_H
 #define ISCSI_TARGET_TMR_H
 
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index 59fd3cabe89d..88576f5d0ca4 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_TPG_H
 #define ISCSI_TARGET_TPG_H
 
diff --git a/drivers/target/iscsi/iscsi_target_transport.c b/drivers/target/iscsi/iscsi_target_transport.c
index c4eb141c6435..036940518bfe 100644
--- a/drivers/target/iscsi/iscsi_target_transport.c
+++ b/drivers/target/iscsi/iscsi_target_transport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/spinlock.h>
 #include <linux/list.h>
 #include <linux/module.h>
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 1e36f83b5961..54f20f184dd6 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -176,6 +176,7 @@ struct iscsi_cmd *iscsit_allocate_cmd(struct iscsi_conn *conn, int state)
 	spin_lock_init(&cmd->istate_lock);
 	spin_lock_init(&cmd->error_lock);
 	spin_lock_init(&cmd->r2t_lock);
+	timer_setup(&cmd->dataout_timer, iscsit_handle_dataout_timeout, 0);
 
 	return cmd;
 }
@@ -880,9 +881,9 @@ static int iscsit_add_nopin(struct iscsi_conn *conn, int want_response)
 	return 0;
 }
 
-static void iscsit_handle_nopin_response_timeout(unsigned long data)
+void iscsit_handle_nopin_response_timeout(struct timer_list *t)
 {
-	struct iscsi_conn *conn = (struct iscsi_conn *) data;
+	struct iscsi_conn *conn = from_timer(conn, t, nopin_response_timer);
 
 	iscsit_inc_conn_usage_count(conn);
 
@@ -949,14 +950,10 @@ void iscsit_start_nopin_response_timer(struct iscsi_conn *conn)
 		return;
 	}
 
-	init_timer(&conn->nopin_response_timer);
-	conn->nopin_response_timer.expires =
-		(get_jiffies_64() + na->nopin_response_timeout * HZ);
-	conn->nopin_response_timer.data = (unsigned long)conn;
-	conn->nopin_response_timer.function = iscsit_handle_nopin_response_timeout;
 	conn->nopin_response_timer_flags &= ~ISCSI_TF_STOP;
 	conn->nopin_response_timer_flags |= ISCSI_TF_RUNNING;
-	add_timer(&conn->nopin_response_timer);
+	mod_timer(&conn->nopin_response_timer,
+		  jiffies + na->nopin_response_timeout * HZ);
 
 	pr_debug("Started NOPIN Response Timer on CID: %d to %u"
 		" seconds\n", conn->cid, na->nopin_response_timeout);
@@ -980,9 +977,9 @@ void iscsit_stop_nopin_response_timer(struct iscsi_conn *conn)
 	spin_unlock_bh(&conn->nopin_timer_lock);
 }
 
-static void iscsit_handle_nopin_timeout(unsigned long data)
+void iscsit_handle_nopin_timeout(struct timer_list *t)
 {
-	struct iscsi_conn *conn = (struct iscsi_conn *) data;
+	struct iscsi_conn *conn = from_timer(conn, t, nopin_timer);
 
 	iscsit_inc_conn_usage_count(conn);
 
@@ -1015,13 +1012,9 @@ void __iscsit_start_nopin_timer(struct iscsi_conn *conn)
 	if (conn->nopin_timer_flags & ISCSI_TF_RUNNING)
 		return;
 
-	init_timer(&conn->nopin_timer);
-	conn->nopin_timer.expires = (get_jiffies_64() + na->nopin_timeout * HZ);
-	conn->nopin_timer.data = (unsigned long)conn;
-	conn->nopin_timer.function = iscsit_handle_nopin_timeout;
 	conn->nopin_timer_flags &= ~ISCSI_TF_STOP;
 	conn->nopin_timer_flags |= ISCSI_TF_RUNNING;
-	add_timer(&conn->nopin_timer);
+	mod_timer(&conn->nopin_timer, jiffies + na->nopin_timeout * HZ);
 
 	pr_debug("Started NOPIN Timer on CID: %d at %u second"
 		" interval\n", conn->cid, na->nopin_timeout);
@@ -1043,13 +1036,9 @@ void iscsit_start_nopin_timer(struct iscsi_conn *conn)
 		return;
 	}
 
-	init_timer(&conn->nopin_timer);
-	conn->nopin_timer.expires = (get_jiffies_64() + na->nopin_timeout * HZ);
-	conn->nopin_timer.data = (unsigned long)conn;
-	conn->nopin_timer.function = iscsit_handle_nopin_timeout;
 	conn->nopin_timer_flags &= ~ISCSI_TF_STOP;
 	conn->nopin_timer_flags |= ISCSI_TF_RUNNING;
-	add_timer(&conn->nopin_timer);
+	mod_timer(&conn->nopin_timer, jiffies + na->nopin_timeout * HZ);
 
 	pr_debug("Started NOPIN Timer on CID: %d at %u second"
 			" interval\n", conn->cid, na->nopin_timeout);
diff --git a/drivers/target/iscsi/iscsi_target_util.h b/drivers/target/iscsi/iscsi_target_util.h
index 425160565d0c..d66dfc212624 100644
--- a/drivers/target/iscsi/iscsi_target_util.h
+++ b/drivers/target/iscsi/iscsi_target_util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_UTIL_H
 #define ISCSI_TARGET_UTIL_H
 
@@ -47,9 +48,11 @@ extern struct iscsi_conn *iscsit_get_conn_from_cid_rcfr(struct iscsi_session *,
 extern void iscsit_check_conn_usage_count(struct iscsi_conn *);
 extern void iscsit_dec_conn_usage_count(struct iscsi_conn *);
 extern void iscsit_inc_conn_usage_count(struct iscsi_conn *);
+extern void iscsit_handle_nopin_response_timeout(struct timer_list *t);
 extern void iscsit_mod_nopin_response_timer(struct iscsi_conn *);
 extern void iscsit_start_nopin_response_timer(struct iscsi_conn *);
 extern void iscsit_stop_nopin_response_timer(struct iscsi_conn *);
+extern void iscsit_handle_nopin_timeout(struct timer_list *t);
 extern void __iscsit_start_nopin_timer(struct iscsi_conn *);
 extern void iscsit_start_nopin_timer(struct iscsi_conn *);
 extern void iscsit_stop_nopin_timer(struct iscsi_conn *);
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index 3acc43c05117..d3110909a213 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/types.h>
 #include <linux/device.h>
 #include <target/target_core_base.h> /* struct se_cmd */
diff --git a/drivers/target/sbp/sbp_target.h b/drivers/target/sbp/sbp_target.h
index 73bcb1208832..1d101ac86527 100644
--- a/drivers/target/sbp/sbp_target.h
+++ b/drivers/target/sbp/sbp_target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SBP_BASE_H
 #define _SBP_BASE_H
 
diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index a91b7c25ffd4..928127642574 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -896,13 +896,14 @@ static int core_alua_write_tpg_metadata(
 	u32 md_buf_len)
 {
 	struct file *file = filp_open(path, O_RDWR | O_CREAT | O_TRUNC, 0600);
+	loff_t pos = 0;
 	int ret;
 
 	if (IS_ERR(file)) {
 		pr_err("filp_open(%s) for ALUA metadata failed\n", path);
 		return -ENODEV;
 	}
-	ret = kernel_write(file, md_buf, md_buf_len, 0);
+	ret = kernel_write(file, md_buf, md_buf_len, &pos);
 	if (ret < 0)
 		pr_err("Error writing ALUA metadata file: %s\n", path);
 	fput(file);
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index c69c11baf07f..1902cb5c3b52 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_ALUA_H
 #define TARGET_CORE_ALUA_H
 
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 7e87d952bb7a..bd87cc26c6e5 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -307,7 +307,7 @@ static struct configfs_attribute *target_core_fabric_item_attrs[] = {
 /*
  * Provides Fabrics Groups and Item Attributes for /sys/kernel/config/target/
  */
-static struct config_item_type target_core_fabrics_item = {
+static const struct config_item_type target_core_fabrics_item = {
 	.ct_group_ops	= &target_core_fabric_group_ops,
 	.ct_attrs	= target_core_fabric_item_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -2376,7 +2376,7 @@ static struct configfs_item_operations target_core_alua_lu_gp_ops = {
 	.release		= target_core_alua_lu_gp_release,
 };
 
-static struct config_item_type target_core_alua_lu_gp_cit = {
+static const struct config_item_type target_core_alua_lu_gp_cit = {
 	.ct_item_ops		= &target_core_alua_lu_gp_ops,
 	.ct_attrs		= target_core_alua_lu_gp_attrs,
 	.ct_owner		= THIS_MODULE,
@@ -2434,7 +2434,7 @@ static struct configfs_group_operations target_core_alua_lu_gps_group_ops = {
 	.drop_item		= &target_core_alua_drop_lu_gp,
 };
 
-static struct config_item_type target_core_alua_lu_gps_cit = {
+static const struct config_item_type target_core_alua_lu_gps_cit = {
 	.ct_item_ops		= NULL,
 	.ct_group_ops		= &target_core_alua_lu_gps_group_ops,
 	.ct_owner		= THIS_MODULE,
@@ -2813,7 +2813,7 @@ static struct configfs_item_operations target_core_alua_tg_pt_gp_ops = {
 	.release		= target_core_alua_tg_pt_gp_release,
 };
 
-static struct config_item_type target_core_alua_tg_pt_gp_cit = {
+static const struct config_item_type target_core_alua_tg_pt_gp_cit = {
 	.ct_item_ops		= &target_core_alua_tg_pt_gp_ops,
 	.ct_attrs		= target_core_alua_tg_pt_gp_attrs,
 	.ct_owner		= THIS_MODULE,
@@ -2884,7 +2884,7 @@ TB_CIT_SETUP(dev_alua_tg_pt_gps, NULL, &target_core_alua_tg_pt_gps_group_ops, NU
  * core/alua/lu_gps and core/alua/tg_pt_gps that are attached to
  * target_core_alua_cit in target_core_init_configfs() below.
  */
-static struct config_item_type target_core_alua_cit = {
+static const struct config_item_type target_core_alua_cit = {
 	.ct_item_ops		= NULL,
 	.ct_attrs		= NULL,
 	.ct_owner		= THIS_MODULE,
@@ -3105,7 +3105,7 @@ static struct configfs_item_operations target_core_hba_item_ops = {
 	.release		= target_core_hba_release,
 };
 
-static struct config_item_type target_core_hba_cit = {
+static const struct config_item_type target_core_hba_cit = {
 	.ct_item_ops		= &target_core_hba_item_ops,
 	.ct_group_ops		= &target_core_hba_group_ops,
 	.ct_attrs		= target_core_hba_attrs,
@@ -3188,7 +3188,7 @@ static struct configfs_group_operations target_core_group_ops = {
 	.drop_item	= target_core_call_delhbafromtarget,
 };
 
-static struct config_item_type target_core_cit = {
+static const struct config_item_type target_core_cit = {
 	.ct_item_ops	= NULL,
 	.ct_group_ops	= &target_core_group_ops,
 	.ct_attrs	= NULL,
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index 24cf11d9e50a..c629817a8854 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -443,7 +443,7 @@ fd_do_prot_fill(struct se_device *se_dev, sector_t lba, sector_t nolb,
 
 	for (prot = 0; prot < prot_length;) {
 		sector_t len = min_t(sector_t, bufsize, prot_length - prot);
-		ssize_t ret = kernel_write(prot_fd, buf, len, pos + prot);
+		ssize_t ret = kernel_write(prot_fd, buf, len, &pos);
 
 		if (ret != len) {
 			pr_err("vfs_write to prot file failed: %zd\n", ret);
diff --git a/drivers/target/target_core_file.h b/drivers/target/target_core_file.h
index 526595a072de..53be5ffd3261 100644
--- a/drivers/target/target_core_file.h
+++ b/drivers/target/target_core_file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_FILE_H
 #define TARGET_CORE_FILE_H
 
diff --git a/drivers/target/target_core_iblock.h b/drivers/target/target_core_iblock.h
index f2a5797217d4..b4aeb2584ad4 100644
--- a/drivers/target/target_core_iblock.h
+++ b/drivers/target/target_core_iblock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_IBLOCK_H
 #define TARGET_CORE_IBLOCK_H
 
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index f30e8ac13386..18e3eb16e756 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_INTERNAL_H
 #define TARGET_CORE_INTERNAL_H
 
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index 6d5def64db61..dd2cd8048582 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -1974,6 +1974,7 @@ static int __core_scsi3_write_aptpl_to_file(
 	char path[512];
 	u32 pr_aptpl_buf_len;
 	int ret;
+	loff_t pos = 0;
 
 	memset(path, 0, 512);
 
@@ -1993,7 +1994,7 @@ static int __core_scsi3_write_aptpl_to_file(
 
 	pr_aptpl_buf_len = (strlen(buf) + 1); /* Add extra for NULL */
 
-	ret = kernel_write(file, buf, pr_aptpl_buf_len, 0);
+	ret = kernel_write(file, buf, pr_aptpl_buf_len, &pos);
 
 	if (ret < 0)
 		pr_debug("Error writing APTPL metadata file: %s\n", path);
diff --git a/drivers/target/target_core_pr.h b/drivers/target/target_core_pr.h
index 772f9148e75c..198fad5c89dc 100644
--- a/drivers/target/target_core_pr.h
+++ b/drivers/target/target_core_pr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_PR_H
 #define TARGET_CORE_PR_H
 
diff --git a/drivers/target/target_core_pscsi.h b/drivers/target/target_core_pscsi.h
index b86fb0e1b783..e8458b5e85c9 100644
--- a/drivers/target/target_core_pscsi.h
+++ b/drivers/target/target_core_pscsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_PSCSI_H
 #define TARGET_CORE_PSCSI_H
 
diff --git a/drivers/target/target_core_rd.h b/drivers/target/target_core_rd.h
index 91fc1a34791d..8b88f9b14c3f 100644
--- a/drivers/target/target_core_rd.h
+++ b/drivers/target/target_core_rd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_RD_H
 #define TARGET_CORE_RD_H
 
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 8038255b21e8..f0db91ebd735 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -96,7 +96,7 @@ static struct configfs_attribute *target_stat_scsi_dev_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_dev_cit = {
+static const struct config_item_type target_stat_scsi_dev_cit = {
 	.ct_attrs		= target_stat_scsi_dev_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -193,7 +193,7 @@ static struct configfs_attribute *target_stat_scsi_tgt_dev_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_tgt_dev_cit = {
+static const struct config_item_type target_stat_scsi_tgt_dev_cit = {
 	.ct_attrs		= target_stat_scsi_tgt_dev_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -414,7 +414,7 @@ static struct configfs_attribute *target_stat_scsi_lu_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_lu_cit = {
+static const struct config_item_type target_stat_scsi_lu_cit = {
 	.ct_attrs		= target_stat_scsi_lu_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -540,7 +540,7 @@ static struct configfs_attribute *target_stat_scsi_port_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_port_cit = {
+static const struct config_item_type target_stat_scsi_port_cit = {
 	.ct_attrs		= target_stat_scsi_port_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -724,7 +724,7 @@ static struct configfs_attribute *target_stat_scsi_tgt_port_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_tgt_port_cit = {
+static const struct config_item_type target_stat_scsi_tgt_port_cit = {
 	.ct_attrs		= target_stat_scsi_tgt_port_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -844,7 +844,7 @@ static struct configfs_attribute *target_stat_scsi_transport_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_transport_cit = {
+static const struct config_item_type target_stat_scsi_transport_cit = {
 	.ct_attrs		= target_stat_scsi_transport_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -1206,7 +1206,7 @@ static struct configfs_attribute *target_stat_scsi_auth_intr_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_auth_intr_cit = {
+static const struct config_item_type target_stat_scsi_auth_intr_cit = {
 	.ct_attrs		= target_stat_scsi_auth_intr_attrs,
 	.ct_owner		= THIS_MODULE,
 };
@@ -1378,7 +1378,7 @@ static struct configfs_attribute *target_stat_scsi_ath_intr_port_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type target_stat_scsi_att_intr_port_cit = {
+static const struct config_item_type target_stat_scsi_att_intr_port_cit = {
 	.ct_attrs		= target_stat_scsi_ath_intr_port_attrs,
 	.ct_owner		= THIS_MODULE,
 };
diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h
index 97402856a8f0..b0f4205a96cd 100644
--- a/drivers/target/target_core_ua.h
+++ b/drivers/target/target_core_ua.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_UA_H
 #define TARGET_CORE_UA_H
 
diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c
index 942d094269fb..9469695f5871 100644
--- a/drivers/target/target_core_user.c
+++ b/drivers/target/target_core_user.c
@@ -985,7 +985,7 @@ static unsigned int tcmu_handle_completions(struct tcmu_dev *udev)
 	mb = udev->mb_addr;
 	tcmu_flush_dcache_range(mb, sizeof(*mb));
 
-	while (udev->cmdr_last_cleaned != ACCESS_ONCE(mb->cmd_tail)) {
+	while (udev->cmdr_last_cleaned != READ_ONCE(mb->cmd_tail)) {
 
 		struct tcmu_cmd_entry *entry = (void *) mb + CMDR_OFF + udev->cmdr_last_cleaned;
 		struct tcmu_cmd *cmd;
diff --git a/drivers/target/target_core_xcopy.h b/drivers/target/target_core_xcopy.h
index 7c0b105cbe1b..26ba4c3c9cff 100644
--- a/drivers/target/target_core_xcopy.h
+++ b/drivers/target/target_core_xcopy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <target/target_core_base.h>
 
 #define XCOPY_HDR_LEN			16
diff --git a/drivers/target/tcm_fc/Makefile b/drivers/target/tcm_fc/Makefile
index 20b14bb087c9..a7d1593ab5af 100644
--- a/drivers/target/tcm_fc/Makefile
+++ b/drivers/target/tcm_fc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 tcm_fc-y +=		tfc_cmd.o \
 			tfc_conf.o \
 			tfc_io.o \
diff --git a/drivers/tee/Makefile b/drivers/tee/Makefile
index 7a4e4a1ac39c..21f51fd88b07 100644
--- a/drivers/tee/Makefile
+++ b/drivers/tee/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TEE) += tee.o
 tee-objs += tee_core.o
 tee-objs += tee_shm.o
diff --git a/drivers/tee/optee/Makefile b/drivers/tee/optee/Makefile
index 92fe5789bcce..d526fb88d9c5 100644
--- a/drivers/tee/optee/Makefile
+++ b/drivers/tee/optee/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OPTEE) += optee.o
 optee-objs += core.o
 optee-objs += call.o
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 8b79bca23536..195cd08fbc30 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for sensor chip drivers.
 #
diff --git a/drivers/thermal/int340x_thermal/Makefile b/drivers/thermal/int340x_thermal/Makefile
index df0df055e7ff..287eb0a1476d 100644
--- a/drivers/thermal/int340x_thermal/Makefile
+++ b/drivers/thermal/int340x_thermal/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_INT340X_THERMAL)	+= int3400_thermal.o
 obj-$(CONFIG_INT340X_THERMAL)	+= int340x_thermal_zone.o
 obj-$(CONFIG_INT340X_THERMAL)	+= int3402_thermal.o
diff --git a/drivers/thermal/int340x_thermal/acpi_thermal_rel.h b/drivers/thermal/int340x_thermal/acpi_thermal_rel.h
index 65075b174329..58822575fd54 100644
--- a/drivers/thermal/int340x_thermal/acpi_thermal_rel.h
+++ b/drivers/thermal/int340x_thermal/acpi_thermal_rel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_ACPI_THERMAL_H
 #define __ACPI_ACPI_THERMAL_H
 
diff --git a/drivers/thermal/tegra/Makefile b/drivers/thermal/tegra/Makefile
index 1ce1af2cf0f5..8a3f221f17c1 100644
--- a/drivers/thermal/tegra/Makefile
+++ b/drivers/thermal/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TEGRA_SOCTHERM)	+= tegra-soctherm.o
 
 tegra-soctherm-y				:= soctherm.o soctherm-fuse.o
diff --git a/drivers/thermal/ti-soc-thermal/Makefile b/drivers/thermal/ti-soc-thermal/Makefile
index 0f89bdf03790..f180ebead858 100644
--- a/drivers/thermal/ti-soc-thermal/Makefile
+++ b/drivers/thermal/ti-soc-thermal/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TI_SOC_THERMAL)		+= ti-soc-thermal.o
 ti-soc-thermal-y			:= ti-bandgap.o
 ti-soc-thermal-$(CONFIG_TI_THERMAL)	+= ti-thermal-common.o
diff --git a/drivers/thunderbolt/cap.c b/drivers/thunderbolt/cap.c
index 38bc27a5ce4f..c2277b8ee88d 100644
--- a/drivers/thunderbolt/cap.c
+++ b/drivers/thunderbolt/cap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - capabilities lookup
  *
diff --git a/drivers/thunderbolt/ctl.c b/drivers/thunderbolt/ctl.c
index fb40dd0588b9..423ae231fc6c 100644
--- a/drivers/thunderbolt/ctl.c
+++ b/drivers/thunderbolt/ctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - control channel and configuration commands
  *
diff --git a/drivers/thunderbolt/ctl.h b/drivers/thunderbolt/ctl.h
index 36fd28b1c1c5..dd34f627ce49 100644
--- a/drivers/thunderbolt/ctl.h
+++ b/drivers/thunderbolt/ctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt Cactus Ridge driver - control channel and configuration commands
  *
diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c
index fe2f00ceafc5..3e8caf22c294 100644
--- a/drivers/thunderbolt/eeprom.c
+++ b/drivers/thunderbolt/eeprom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - eeprom access
  *
diff --git a/drivers/thunderbolt/nhi.h b/drivers/thunderbolt/nhi.h
index 5b5bb2c436be..1c7e6b92e235 100644
--- a/drivers/thunderbolt/nhi.h
+++ b/drivers/thunderbolt/nhi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt Cactus Ridge driver - NHI driver
  *
diff --git a/drivers/thunderbolt/nhi_regs.h b/drivers/thunderbolt/nhi_regs.h
index 09ed574e92ff..752ec04305f3 100644
--- a/drivers/thunderbolt/nhi_regs.h
+++ b/drivers/thunderbolt/nhi_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt driver - NHI registers
  *
diff --git a/drivers/thunderbolt/path.c b/drivers/thunderbolt/path.c
index 9562cd026dc0..ff49ad880bfd 100644
--- a/drivers/thunderbolt/path.c
+++ b/drivers/thunderbolt/path.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - path/tunnel functionality
  *
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 53f40c57df59..3953d17202a8 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - switch/port utility functions
  *
diff --git a/drivers/thunderbolt/tb.c b/drivers/thunderbolt/tb.c
index 0b22ad9d68b4..d674e06767a5 100644
--- a/drivers/thunderbolt/tb.c
+++ b/drivers/thunderbolt/tb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - bus logic (NHI independent)
  *
diff --git a/drivers/thunderbolt/tb.h b/drivers/thunderbolt/tb.h
index e0deee4f1eb0..d7ffc159bcf7 100644
--- a/drivers/thunderbolt/tb.h
+++ b/drivers/thunderbolt/tb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt Cactus Ridge driver - bus logic (NHI independent)
  *
diff --git a/drivers/thunderbolt/tb_regs.h b/drivers/thunderbolt/tb_regs.h
index 582bd1f156dc..5d94142afda6 100644
--- a/drivers/thunderbolt/tb_regs.h
+++ b/drivers/thunderbolt/tb_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt Cactus Ridge driver - Port/Switch config area registers
  *
diff --git a/drivers/thunderbolt/tunnel_pci.c b/drivers/thunderbolt/tunnel_pci.c
index ca4475907d7a..0637537ea53f 100644
--- a/drivers/thunderbolt/tunnel_pci.c
+++ b/drivers/thunderbolt/tunnel_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Thunderbolt Cactus Ridge driver - PCIe tunnel
  *
diff --git a/drivers/thunderbolt/tunnel_pci.h b/drivers/thunderbolt/tunnel_pci.h
index a67f93c140fa..f9b65fa1fd4d 100644
--- a/drivers/thunderbolt/tunnel_pci.h
+++ b/drivers/thunderbolt/tunnel_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Thunderbolt Cactus Ridge driver - PCIe tunnel
  *
diff --git a/drivers/tty/Makefile b/drivers/tty/Makefile
index 16330a819685..8ce3a8661b31 100644
--- a/drivers/tty/Makefile
+++ b/drivers/tty/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TTY)		+= tty_io.o n_tty.o tty_ioctl.o tty_ldisc.o \
 				   tty_buffer.o tty_port.o tty_mutex.o \
 				   tty_ldsem.o tty_baudrate.o tty_jobctrl.o \
diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 9820e20993db..32d7ce430b02 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Serial driver for the amiga builtin port.
  *
diff --git a/drivers/tty/bfin_jtag_comm.c b/drivers/tty/bfin_jtag_comm.c
index ce24182f8514..c369bf27a67b 100644
--- a/drivers/tty/bfin_jtag_comm.c
+++ b/drivers/tty/bfin_jtag_comm.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * TTY over Blackfin JTAG Communication
  *
  * Copyright 2008-2009 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #define DRV_NAME "bfin-jtag-comm"
diff --git a/drivers/tty/cyclades.c b/drivers/tty/cyclades.c
index d272bc4e7fb5..5d442469c95e 100644
--- a/drivers/tty/cyclades.c
+++ b/drivers/tty/cyclades.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef	BLOCKMOVE
 #define	Z_WAKE
 #undef	Z_EXT_CHARS_IN_BUFFER
@@ -283,11 +284,10 @@ static void cyz_poll(unsigned long);
 /* The Cyclades-Z polling cycle is defined by this variable */
 static long cyz_polling_cycle = CZ_DEF_POLL;
 
-static DEFINE_TIMER(cyz_timerlist, cyz_poll, 0, 0);
+static DEFINE_TIMER(cyz_timerlist, cyz_poll);
 
 #else				/* CONFIG_CYZ_INTR */
-static void cyz_rx_restart(unsigned long);
-static struct timer_list cyz_rx_full_timer[NR_PORTS];
+static void cyz_rx_restart(struct timer_list *);
 #endif				/* CONFIG_CYZ_INTR */
 
 static void cyy_writeb(struct cyclades_port *port, u32 reg, u8 val)
@@ -992,10 +992,8 @@ static void cyz_handle_rx(struct cyclades_port *info)
 	else
 		char_count = rx_put - rx_get + rx_bufsize;
 	if (char_count >= readl(&buf_ctrl->rx_threshold) &&
-			!timer_pending(&cyz_rx_full_timer[
-					info->line]))
-		mod_timer(&cyz_rx_full_timer[info->line],
-				jiffies + 1);
+			!timer_pending(&info->rx_full_timer))
+		mod_timer(&info->rx_full_timer, jiffies + 1);
 #endif
 	info->idle_stats.recv_idle = jiffies;
 	tty_schedule_flip(&info->port);
@@ -1197,9 +1195,9 @@ static irqreturn_t cyz_interrupt(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }				/* cyz_interrupt */
 
-static void cyz_rx_restart(unsigned long arg)
+static void cyz_rx_restart(struct timer_list *t)
 {
-	struct cyclades_port *info = (struct cyclades_port *)arg;
+	struct cyclades_port *info = from_timer(info, t, rx_full_timer);
 	struct cyclades_card *card = info->card;
 	int retval;
 	__u32 channel = info->line - card->first_line;
@@ -3097,8 +3095,7 @@ static int cy_init_card(struct cyclades_card *cinfo)
 			else
 				info->xmit_fifo_size = 4 * CYZ_FIFO_SIZE;
 #ifdef CONFIG_CYZ_INTR
-			setup_timer(&cyz_rx_full_timer[port],
-				cyz_rx_restart, (unsigned long)info);
+			timer_setup(&info->rx_full_timer, cyz_rx_restart, 0);
 #endif
 		} else {
 			unsigned short chip_number;
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index a1c7125cb968..47ac56817c43 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ePAPR hypervisor byte channel device driver
  *
  * Copyright 2009-2011 Freescale Semiconductor, Inc.
  *
  * Author: Timur Tabi <timur@freescale.com>
  *
- * This file is licensed under the terms of the GNU General Public License
- * version 2.  This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- *
  * This driver support three distinct interfaces, all of which are related to
  * ePAPR hypervisor byte channels.
  *
@@ -328,7 +325,7 @@ console_initcall(ehv_bc_console_init);
 /******************************** TTY DRIVER ********************************/
 
 /*
- * byte channel receive interupt handler
+ * byte channel receive interrupt handler
  *
  * This ISR is called whenever data is available on a byte channel.
  */
@@ -428,7 +425,7 @@ static void ehv_bc_tx_dequeue(struct ehv_bc_data *bc)
 }
 
 /*
- * byte channel transmit interupt handler
+ * byte channel transmit interrupt handler
  *
  * This ISR is called whenever space becomes available for transmitting
  * characters on a byte channel.
diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index 381e981dee06..7f657bb5113c 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2007 Google, Inc.
  * Copyright (C) 2012 Intel, Inc.
  * Copyright (C) 2017 Imagination Technologies Ltd.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/console.h>
diff --git a/drivers/tty/hvc/Makefile b/drivers/tty/hvc/Makefile
index 6a2702be76d1..0b02ec7f1dfd 100644
--- a/drivers/tty/hvc/Makefile
+++ b/drivers/tty/hvc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_HVC_CONSOLE)	+= hvc_vio.o hvsi_lib.o
 obj-$(CONFIG_HVC_OPAL)		+= hvc_opal.o hvsi_lib.o
 obj-$(CONFIG_HVC_OLD_HVSI)	+= hvsi.o
diff --git a/drivers/tty/hvc/hvc_bfin_jtag.c b/drivers/tty/hvc/hvc_bfin_jtag.c
index 31d6cc6a77af..dd7cae4c195b 100644
--- a/drivers/tty/hvc/hvc_bfin_jtag.c
+++ b/drivers/tty/hvc/hvc_bfin_jtag.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Console via Blackfin JTAG Communication
  *
  * Copyright 2008-2011 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/console.h>
diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c
index a8d399188242..7709fcc707f4 100644
--- a/drivers/tty/hvc/hvc_console.c
+++ b/drivers/tty/hvc/hvc_console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2001 Anton Blanchard <anton@au.ibm.com>, IBM
  * Copyright (C) 2001 Paul Mackerras <paulus@au.ibm.com>, IBM
@@ -6,20 +7,6 @@
  *
  * Additional Author(s):
  *  Ryan S. Arnold <rsa@us.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 #include <linux/console.h>
diff --git a/drivers/tty/hvc/hvc_console.h b/drivers/tty/hvc/hvc_console.h
index 798c48d0d32c..ea63090e013f 100644
--- a/drivers/tty/hvc/hvc_console.h
+++ b/drivers/tty/hvc/hvc_console.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * hvc_console.h
  * Copyright (C) 2005 IBM Corporation
@@ -8,20 +9,6 @@
  * hvc_console header information:
  *      moved here from arch/powerpc/include/asm/hvconsole.h
  *      and drivers/char/hvc_console.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 #ifndef HVC_CONSOLE_H
diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c
index 82f240fb98f0..02629a1f193d 100644
--- a/drivers/tty/hvc/hvc_dcc.c
+++ b/drivers/tty/hvc/hvc_dcc.c
@@ -1,14 +1,5 @@
-/* Copyright (c) 2010, 2014 The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2010, 2014 The Linux Foundation. All rights reserved.  */
 
 #include <linux/init.h>
 
diff --git a/drivers/tty/hvc/hvc_irq.c b/drivers/tty/hvc/hvc_irq.c
index bc7a96874637..4b255dfef2cc 100644
--- a/drivers/tty/hvc/hvc_irq.c
+++ b/drivers/tty/hvc/hvc_irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright IBM Corp. 2001,2008
  *
diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c
index 8b70a1627356..a74680729825 100644
--- a/drivers/tty/hvc/hvc_iucv.c
+++ b/drivers/tty/hvc/hvc_iucv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * z/VM IUCV hypervisor console (HVC) device driver
  *
diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
index 16331a90c1e8..2ed07ca6389e 100644
--- a/drivers/tty/hvc/hvc_opal.c
+++ b/drivers/tty/hvc/hvc_opal.c
@@ -1,22 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * opal driver interface to hvc_console.c
  *
  * Copyright 2011 Benjamin Herrenschmidt <benh@kernel.crashing.org>, IBM Corp.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
  */
 
 #undef DEBUG
diff --git a/drivers/tty/hvc/hvc_rtas.c b/drivers/tty/hvc/hvc_rtas.c
index 08c87920b74a..e8b8c645482b 100644
--- a/drivers/tty/hvc/hvc_rtas.c
+++ b/drivers/tty/hvc/hvc_rtas.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * IBM RTAS driver interface to hvc_console.c
  *
@@ -11,20 +12,6 @@
  *
  *    inspired by drivers/char/hvc_console.c
  *    written by Anton Blanchard and Paul Mackerras
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 #include <linux/console.h>
diff --git a/drivers/tty/hvc/hvc_tile.c b/drivers/tty/hvc/hvc_tile.c
index 9da1e842bbe9..b517c0661abb 100644
--- a/drivers/tty/hvc/hvc_tile.c
+++ b/drivers/tty/hvc/hvc_tile.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- *
  * Tilera TILE Processor hypervisor console
  */
 
diff --git a/drivers/tty/hvc/hvc_udbg.c b/drivers/tty/hvc/hvc_udbg.c
index 9cf573d06a29..a4c9913f76a0 100644
--- a/drivers/tty/hvc/hvc_udbg.c
+++ b/drivers/tty/hvc/hvc_udbg.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * udbg interface to hvc_console.c
  *
  * (C) Copyright David Gibson, IBM Corporation 2008.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 #include <linux/console.h>
diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c
index a1d272ac82bb..59eaa620bf13 100644
--- a/drivers/tty/hvc/hvc_vio.c
+++ b/drivers/tty/hvc/hvc_vio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * vio driver interface to hvc_console.c
  *
@@ -14,20 +15,6 @@
  * Additional Author(s):
  *  Ryan S. Arnold <rsa@us.ibm.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
  * TODO:
  *
  *   - handle error in sending hvsi protocol packets
diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 5e87e4866bcb..dc43fa96c3de 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * xen console driver interface to hvc_console.c
  *
  * (c) 2007 Gerd Hoffmann <kraxel@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 #include <linux/console.h>
diff --git a/drivers/tty/hvc/hvcs.c b/drivers/tty/hvc/hvcs.c
index 63c29fe9d21f..1db1d97e72e7 100644
--- a/drivers/tty/hvc/hvcs.c
+++ b/drivers/tty/hvc/hvcs.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * IBM eServer Hypervisor Virtual Console Server Device Driver
  * Copyright (C) 2003, 2004 IBM Corp.
  *  Ryan S. Arnold (rsa@us.ibm.com)
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
  * Author(s) :  Ryan S. Arnold <rsa@us.ibm.com>
  *
  * This is the device driver for the IBM Hypervisor Virtual Console Server,
diff --git a/drivers/tty/hvc/hvsi.c b/drivers/tty/hvc/hvsi.c
index 2e578d6433af..66f95f758be0 100644
--- a/drivers/tty/hvc/hvsi.c
+++ b/drivers/tty/hvc/hvsi.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2004 Hollis Blanchard <hollisb@us.ibm.com>, IBM
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 /* Host Virtual Serial Interface (HVSI) is a protocol between the hosted OS
diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
index a270f04588d7..09289c8154ae 100644
--- a/drivers/tty/hvc/hvsi_lib.c
+++ b/drivers/tty/hvc/hvsi_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
diff --git a/drivers/tty/ipwireless/hardware.c b/drivers/tty/ipwireless/hardware.c
index df0204b6148f..a6b8240af6cd 100644
--- a/drivers/tty/ipwireless/hardware.c
+++ b/drivers/tty/ipwireless/hardware.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/hardware.h b/drivers/tty/ipwireless/hardware.h
index 90a8590e43b0..e524a8fcc2ad 100644
--- a/drivers/tty/ipwireless/hardware.h
+++ b/drivers/tty/ipwireless/hardware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/main.c b/drivers/tty/ipwireless/main.c
index 655c7948261c..3475e841ef5c 100644
--- a/drivers/tty/ipwireless/main.c
+++ b/drivers/tty/ipwireless/main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/main.h b/drivers/tty/ipwireless/main.h
index f2cbb116bccb..73818bb64416 100644
--- a/drivers/tty/ipwireless/main.h
+++ b/drivers/tty/ipwireless/main.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/network.c b/drivers/tty/ipwireless/network.c
index c2f9a3263b37..695439c03147 100644
--- a/drivers/tty/ipwireless/network.c
+++ b/drivers/tty/ipwireless/network.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/network.h b/drivers/tty/ipwireless/network.h
index 561f765b3334..784932a59a73 100644
--- a/drivers/tty/ipwireless/network.h
+++ b/drivers/tty/ipwireless/network.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/setup_protocol.h b/drivers/tty/ipwireless/setup_protocol.h
index 002c34e72521..d4a7ae257ca5 100644
--- a/drivers/tty/ipwireless/setup_protocol.h
+++ b/drivers/tty/ipwireless/setup_protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/tty.c b/drivers/tty/ipwireless/tty.c
index 2685d59d2724..1ef751c27ac6 100644
--- a/drivers/tty/ipwireless/tty.c
+++ b/drivers/tty/ipwireless/tty.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/ipwireless/tty.h b/drivers/tty/ipwireless/tty.h
index 747b2d637860..ec698d9f338b 100644
--- a/drivers/tty/ipwireless/tty.h
+++ b/drivers/tty/ipwireless/tty.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPWireless 3G PCMCIA Network Driver
  *
diff --git a/drivers/tty/isicom.c b/drivers/tty/isicom.c
index 61ecdd6b2fc2..ee7958ab269f 100644
--- a/drivers/tty/isicom.c
+++ b/drivers/tty/isicom.c
@@ -1,9 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
  *	Original driver code supplied by Multi-Tech
  *
  *	Changes
@@ -177,7 +173,7 @@ static struct tty_driver *isicom_normal;
 static void isicom_tx(unsigned long _data);
 static void isicom_start(struct tty_struct *tty);
 
-static DEFINE_TIMER(tx, isicom_tx, 0, 0);
+static DEFINE_TIMER(tx, isicom_tx);
 
 /*   baud index mappings from linux defns to isi */
 
diff --git a/drivers/tty/metag_da.c b/drivers/tty/metag_da.c
index 25ccef2fe748..99eaed4b2dbc 100644
--- a/drivers/tty/metag_da.c
+++ b/drivers/tty/metag_da.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  dashtty.c - tty driver for Dash channels interface.
  *
  *  Copyright (C) 2007,2008,2012 Imagination Technologies
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- *
  */
 
 #include <linux/atomic.h>
@@ -309,7 +305,7 @@ static int put_data(void *arg)
 /*
  *	This gets called every DA_TTY_POLL and polls the channels for data
  */
-static void dashtty_timer(unsigned long ignored)
+static void dashtty_timer(struct timer_list *poll_timer)
 {
 	int channel;
 
@@ -323,12 +319,12 @@ static void dashtty_timer(unsigned long ignored)
 	if (channel >= 0)
 		fetch_data(channel);
 
-	mod_timer(&poll_timer, jiffies + DA_TTY_POLL);
+	mod_timer(poll_timer, jiffies + DA_TTY_POLL);
 }
 
 static void add_poll_timer(struct timer_list *poll_timer)
 {
-	setup_pinned_timer(poll_timer, dashtty_timer, 0);
+	timer_setup(poll_timer, dashtty_timer, TIMER_PINNED);
 	poll_timer->expires = jiffies + DA_TTY_POLL;
 
 	/*
@@ -461,7 +457,7 @@ static void dashtty_hangup(struct tty_struct *tty)
  * buffers. It is used to delay the expensive writeout until the writer has
  * stopped writing.
  */
-static void dashtty_put_timer(unsigned long ignored)
+static void dashtty_put_timer(struct timer_list *unused)
 {
 	if (atomic_read(&dashtty_xmit_cnt))
 		wake_up_interruptible(&dashtty_waitqueue);
@@ -603,7 +599,7 @@ static int __init dashtty_init(void)
 		complete(&dport->xmit_empty);
 	}
 
-	setup_timer(&put_timer, dashtty_put_timer, 0);
+	timer_setup(&put_timer, dashtty_put_timer, 0);
 
 	init_waitqueue_head(&dashtty_waitqueue);
 	dashtty_thread = kthread_create(put_data, NULL, "ttyDA");
diff --git a/drivers/tty/mips_ejtag_fdc.c b/drivers/tty/mips_ejtag_fdc.c
index a2dab3fb8751..4c1cd49ae95b 100644
--- a/drivers/tty/mips_ejtag_fdc.c
+++ b/drivers/tty/mips_ejtag_fdc.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * TTY driver for MIPS EJTAG Fast Debug Channels.
  *
  * Copyright (C) 2007-2015 Imagination Technologies Ltd
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive for more
- * details.
  */
 
 #include <linux/atomic.h>
@@ -683,9 +680,9 @@ static irqreturn_t mips_ejtag_fdc_isr(int irq, void *dev_id)
  * It simply triggers the common FDC handler code and arranges for further
  * polling.
  */
-static void mips_ejtag_fdc_tty_timer(unsigned long opaque)
+static void mips_ejtag_fdc_tty_timer(struct timer_list *t)
 {
-	struct mips_ejtag_fdc_tty *priv = (void *)opaque;
+	struct mips_ejtag_fdc_tty *priv = from_timer(priv, t, poll_timer);
 
 	mips_ejtag_fdc_handle(priv);
 	if (!priv->removing)
@@ -1002,8 +999,8 @@ static int mips_ejtag_fdc_tty_probe(struct mips_cdmm_device *dev)
 		raw_spin_unlock_irq(&priv->lock);
 	} else {
 		/* If we didn't get an usable IRQ, poll instead */
-		setup_pinned_timer(&priv->poll_timer, mips_ejtag_fdc_tty_timer,
-			    (unsigned long)priv);
+		timer_setup(&priv->poll_timer, mips_ejtag_fdc_tty_timer,
+			    TIMER_PINNED);
 		priv->poll_timer.expires = jiffies + FDC_TTY_POLL;
 		/*
 		 * Always attach the timer to the right CPU. The channels are
diff --git a/drivers/tty/moxa.c b/drivers/tty/moxa.c
index 7f3d4cb0341b..65a70f3c7cde 100644
--- a/drivers/tty/moxa.c
+++ b/drivers/tty/moxa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*****************************************************************************/
 /*
  *           moxa.c  -- MOXA Intellio family multiport serial driver.
@@ -7,11 +8,6 @@
  *
  *      This code is loosely based on the Linux serial driver, written by
  *      Linus Torvalds, Theodore T'so and others.
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
  */
 
 /*
@@ -428,7 +424,7 @@ static const struct tty_port_operations moxa_port_ops = {
 };
 
 static struct tty_driver *moxaDriver;
-static DEFINE_TIMER(moxaTimer, moxa_poll, 0, 0);
+static DEFINE_TIMER(moxaTimer, moxa_poll);
 
 /*
  * HW init
diff --git a/drivers/tty/moxa.h b/drivers/tty/moxa.h
index 87d16ce57be7..8ce89fd36c7b 100644
--- a/drivers/tty/moxa.h
+++ b/drivers/tty/moxa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MOXA_H_FILE
 #define MOXA_H_FILE
 
diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 1c0c9553bc05..8bc15cb67a58 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *          mxser.c  -- MOXA Smartio/Industio family multiport serial driver.
  *
@@ -8,11 +9,6 @@
  *	Linux serial driver, written by Linus Torvalds, Theodore T'so and
  *	others.
  *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
  *	Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
  *	<alan@lxorguk.ukuu.org.uk>. The original 1.8 code is available on
  *	www.moxa.com.
@@ -246,11 +242,11 @@ struct mxser_port {
 	unsigned char err_shadow;
 
 	struct async_icount icount; /* kernel counters for 4 input interrupts */
-	int timeout;
+	unsigned int timeout;
 
 	int read_status_mask;
 	int ignore_status_mask;
-	int xmit_fifo_size;
+	unsigned int xmit_fifo_size;
 	int xmit_head;
 	int xmit_tail;
 	int xmit_cnt;
@@ -572,8 +568,9 @@ static void mxser_dtr_rts(struct tty_port *port, int on)
 static int mxser_set_baud(struct tty_struct *tty, long newspd)
 {
 	struct mxser_port *info = tty->driver_data;
-	int quot = 0, baud;
+	unsigned int quot = 0, baud;
 	unsigned char cval;
+	u64 timeout;
 
 	if (!info->ioaddr)
 		return -1;
@@ -594,8 +591,13 @@ static int mxser_set_baud(struct tty_struct *tty, long newspd)
 		quot = 0;
 	}
 
-	info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base);
-	info->timeout += HZ / 50;	/* Add .02 seconds of slop */
+	/*
+	 * worst case (128 * 1000 * 10 * 18432) needs 35 bits, so divide in the
+	 * u64 domain
+	 */
+	timeout = (u64)info->xmit_fifo_size * HZ * 10 * quot;
+	do_div(timeout, info->baud_base);
+	info->timeout = timeout + HZ / 50; /* Add .02 seconds of slop */
 
 	if (quot) {
 		info->MCR |= UART_MCR_DTR;
@@ -636,8 +638,7 @@ static int mxser_set_baud(struct tty_struct *tty, long newspd)
  * This routine is called to set the UART divisor registers to match
  * the specified baud rate for a serial port.
  */
-static int mxser_change_speed(struct tty_struct *tty,
-					struct ktermios *old_termios)
+static int mxser_change_speed(struct tty_struct *tty)
 {
 	struct mxser_port *info = tty->driver_data;
 	unsigned cflag, cval, fcr;
@@ -939,7 +940,7 @@ static int mxser_activate(struct tty_port *port, struct tty_struct *tty)
 	/*
 	 * and set the speed of the serial port
 	 */
-	mxser_change_speed(tty, NULL);
+	mxser_change_speed(tty);
 	spin_unlock_irqrestore(&info->slock, flags);
 
 	return 0;
@@ -1282,7 +1283,7 @@ static int mxser_set_serial_info(struct tty_struct *tty,
 	if (tty_port_initialized(port)) {
 		if (flags != (port->flags & ASYNC_SPD_MASK)) {
 			spin_lock_irqsave(&info->slock, sl_flags);
-			mxser_change_speed(tty, NULL);
+			mxser_change_speed(tty);
 			spin_unlock_irqrestore(&info->slock, sl_flags);
 		}
 	} else {
@@ -1940,7 +1941,7 @@ static void mxser_set_termios(struct tty_struct *tty, struct ktermios *old_termi
 	unsigned long flags;
 
 	spin_lock_irqsave(&info->slock, flags);
-	mxser_change_speed(tty, old_termios);
+	mxser_change_speed(tty);
 	spin_unlock_irqrestore(&info->slock, flags);
 
 	if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) {
@@ -2369,8 +2370,7 @@ static void mxser_release_ISA_res(struct mxser_board *brd)
 	mxser_release_vector(brd);
 }
 
-static int mxser_initbrd(struct mxser_board *brd,
-		struct pci_dev *pdev)
+static int mxser_initbrd(struct mxser_board *brd)
 {
 	struct mxser_port *info;
 	unsigned int i;
@@ -2634,7 +2634,7 @@ static int mxser_probe(struct pci_dev *pdev,
 	}
 
 	/* mxser_initbrd will hook ISR. */
-	retval = mxser_initbrd(brd, pdev);
+	retval = mxser_initbrd(brd);
 	if (retval)
 		goto err_rel3;
 
@@ -2740,7 +2740,7 @@ static int __init mxser_module_init(void)
 				brd->info->name, ioaddr[b]);
 
 		/* mxser_initbrd will hook ISR. */
-		if (mxser_initbrd(brd, NULL) < 0) {
+		if (mxser_initbrd(brd) < 0) {
 			mxser_release_ISA_res(brd);
 			brd->info = NULL;
 			continue;
diff --git a/drivers/tty/mxser.h b/drivers/tty/mxser.h
index 0bf794313ffd..e6cb15626567 100644
--- a/drivers/tty/mxser.h
+++ b/drivers/tty/mxser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MXSER_H
 #define _MXSER_H
 
diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 0a3c9665e015..3a39eb685c69 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -1,20 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * n_gsm.c GSM 0710 tty multiplexor
  * Copyright (c) 2009/10 Intel Corporation
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  *	* THIS IS A DEVELOPMENT SNAPSHOT IT IS NOT A FINAL RELEASE *
  *
  * TO DO:
@@ -1646,9 +1634,7 @@ static struct gsm_dlci *gsm_dlci_alloc(struct gsm_mux *gsm, int addr)
 	}
 
 	skb_queue_head_init(&dlci->skb_list);
-	init_timer(&dlci->t1);
-	dlci->t1.function = gsm_dlci_t1;
-	dlci->t1.data = (unsigned long)dlci;
+	setup_timer(&dlci->t1, gsm_dlci_t1, (unsigned long)dlci);
 	tty_port_init(&dlci->port);
 	dlci->port.ops = &gsm_port_ops;
 	dlci->gsm = gsm;
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index 7b2a466616d6..eea7b6cb3cc4 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /* generic HDLC line discipline for Linux
  *
  * Written by Paul Fulghum paulkf@microgate.com
@@ -11,8 +12,6 @@
  *
  * Original release 01/11/99
  *
- * This code is released under the GNU General Public License (GPL)
- *
  * This module implements the tty line discipline N_HDLC for use with
  * tty device drivers that support bit-synchronous HDLC communications.
  *
diff --git a/drivers/tty/n_null.c b/drivers/tty/n_null.c
index d63261c36e42..96feabae4740 100644
--- a/drivers/tty/n_null.c
+++ b/drivers/tty/n_null.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/tty.h>
@@ -7,19 +8,6 @@
  *  n_null.c - Null line discipline used in the failure path
  *
  *  Copyright (C) Intel 2017
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
 static int n_null_open(struct tty_struct *tty)
diff --git a/drivers/tty/n_r3964.c b/drivers/tty/n_r3964.c
index 305b6490d405..9f246d4db3ca 100644
--- a/drivers/tty/n_r3964.c
+++ b/drivers/tty/n_r3964.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /* r3964 linediscipline for linux
  *
  * -----------------------------------------------------------
@@ -5,9 +6,6 @@
  * Philips Automation Projects
  * Kassel (Germany)
  * -----------------------------------------------------------
- * This software may be used and distributed according to the terms of
- * the GNU General Public License, incorporated herein by reference.
- *
  * Author:
  * L. Haag
  *
diff --git a/drivers/tty/n_tracerouter.c b/drivers/tty/n_tracerouter.c
index ac5716979bc1..4479af4d2fa5 100644
--- a/drivers/tty/n_tracerouter.c
+++ b/drivers/tty/n_tracerouter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  n_tracerouter.c - Trace data router through tty space
  *
@@ -5,17 +6,6 @@
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
  * This trace router uses the Linux line discipline framework to route
  * trace data coming from a HW Modem to a PTI (Parallel Trace Module) port.
  * The solution is not specific to a HW modem and this line disciple can
diff --git a/drivers/tty/n_tracesink.c b/drivers/tty/n_tracesink.c
index 4616870a6b1b..d96ba82cc356 100644
--- a/drivers/tty/n_tracesink.c
+++ b/drivers/tty/n_tracesink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  n_tracesink.c - Trace data router and sink path through tty space.
  *
@@ -5,17 +6,6 @@
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
  * The trace sink uses the Linux line discipline framework to receive
  * trace data coming from the PTI source line discipline driver
  * to a user-desired tty port, like USB.
diff --git a/drivers/tty/n_tracesink.h b/drivers/tty/n_tracesink.h
index a68bb44f1ef5..1b846330c855 100644
--- a/drivers/tty/n_tracesink.h
+++ b/drivers/tty/n_tracesink.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  n_tracesink.h - Kernel driver API to route trace data in kernel space.
  *
@@ -5,17 +6,6 @@
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2
- *  as published by the Free Software Foundation.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
  * The PTI (Parallel Trace Interface) driver directs trace data routed from
  * various parts in the system out through the Intel Penwell PTI port and
  * out of the mobile device for analysis with a debugging tool
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index bdf0e6e89991..427e0d5d8f13 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * n_tty.c --- implements the N_TTY line discipline.
  *
@@ -15,9 +16,6 @@
  * This file also contains code originally written by Linus Torvalds,
  * Copyright 1991, 1992, 1993, and by Julian Cowley, Copyright 1994.
  *
- * This file may be redistributed under the terms of the GNU General Public
- * License.
- *
  * Reduced memory usage for older ARM systems  - Russell King.
  *
  * 2000/01/20   Fixed SMP locking on put_tty_queue using bits of
diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index 39b3723a32a6..b57b35066ebe 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * nozomi.c  -- HSDPA driver Broadband Wireless Data Card - Globe Trotter
  *
@@ -21,20 +22,6 @@
  * Copyright (c) 2006 Option Wireless n/v
  * All rights Reserved.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  * --------------------------------------------------------------------------
  */
 
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index 26dcb3b60fb9..64338442050e 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  *
diff --git a/drivers/tty/rocket.c b/drivers/tty/rocket.c
index 20d79a6007d5..f7dc9b1ea806 100644
--- a/drivers/tty/rocket.c
+++ b/drivers/tty/rocket.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * RocketPort device driver for Linux
  *
  * Written by Theodore Ts'o, 1995, 1996, 1997, 1998, 1999, 2000.
  * 
  * Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2003 by Comtrol, Inc.
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- * 
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- * 
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
@@ -111,7 +98,7 @@ static struct r_port *rp_table[MAX_RP_PORTS];	       /*  The main repository of
 static unsigned int xmit_flags[NUM_BOARDS];	       /*  Bit significant, indicates port had data to transmit. */
 						       /*  eg.  Bit 0 indicates port 0 has xmit data, ...        */
 static atomic_t rp_num_ports_open;	               /*  Number of serial ports open                           */
-static DEFINE_TIMER(rocket_timer, rp_do_poll, 0, 0);
+static DEFINE_TIMER(rocket_timer, rp_do_poll);
 
 static unsigned long board1;	                       /* ISA addresses, retrieved from rocketport.conf          */
 static unsigned long board2;
diff --git a/drivers/tty/rocket.h b/drivers/tty/rocket.h
index c11a9392f219..d0560203f215 100644
--- a/drivers/tty/rocket.h
+++ b/drivers/tty/rocket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * rocket.h --- the exported interface of the rocket driver to its configuration program.
  *
diff --git a/drivers/tty/rocket_int.h b/drivers/tty/rocket_int.h
index ef1e1be6b26d..727e50dbb92f 100644
--- a/drivers/tty/rocket_int.h
+++ b/drivers/tty/rocket_int.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * rocket_int.h --- internal header file for rocket.c
  *
diff --git a/drivers/tty/serdev/Kconfig b/drivers/tty/serdev/Kconfig
index cdc6b820cf93..1dbc8352e027 100644
--- a/drivers/tty/serdev/Kconfig
+++ b/drivers/tty/serdev/Kconfig
@@ -6,11 +6,19 @@ menuconfig SERIAL_DEV_BUS
 	help
 	  Core support for devices connected via a serial port.
 
+	  Note that you typically also want to enable TTY port controller support.
+
 if SERIAL_DEV_BUS
 
 config SERIAL_DEV_CTRL_TTYPORT
 	bool "Serial device TTY port controller"
+	help
+	  Say Y here if you want to use the Serial device bus with common TTY
+	  drivers (e.g. serial drivers).
+
+	  If unsure, say Y.
 	depends on TTY
 	depends on SERIAL_DEV_BUS != m
+	default y
 
 endif
diff --git a/drivers/tty/serdev/core.c b/drivers/tty/serdev/core.c
index c68fb3a8ea1c..1bef39828ca7 100644
--- a/drivers/tty/serdev/core.c
+++ b/drivers/tty/serdev/core.c
@@ -1,19 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2016-2017 Linaro Ltd., Rob Herring <robh@kernel.org>
  *
  * Based on drivers/spmi/spmi.c:
  * Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
+#include <linux/acpi.h>
 #include <linux/errno.h>
 #include <linux/idr.h>
 #include <linux/kernel.h>
@@ -49,13 +42,22 @@ static const struct device_type serdev_ctrl_type = {
 
 static int serdev_device_match(struct device *dev, struct device_driver *drv)
 {
-	/* TODO: ACPI and platform matching */
+	/* TODO: platform matching */
+	if (acpi_driver_match_device(dev, drv))
+		return 1;
+
 	return of_driver_match_device(dev, drv);
 }
 
 static int serdev_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
-	/* TODO: ACPI and platform modalias */
+	int rc;
+
+	/* TODO: platform modalias */
+	rc = acpi_device_uevent_modalias(dev, env);
+	if (rc != -ENODEV)
+		return rc;
+
 	return of_device_uevent_modalias(dev, env);
 }
 
@@ -65,21 +67,32 @@ static int serdev_uevent(struct device *dev, struct kobj_uevent_env *env)
  */
 int serdev_device_add(struct serdev_device *serdev)
 {
+	struct serdev_controller *ctrl = serdev->ctrl;
 	struct device *parent = serdev->dev.parent;
 	int err;
 
 	dev_set_name(&serdev->dev, "%s-%d", dev_name(parent), serdev->nr);
 
+	/* Only a single slave device is currently supported. */
+	if (ctrl->serdev) {
+		dev_err(&serdev->dev, "controller busy\n");
+		return -EBUSY;
+	}
+	ctrl->serdev = serdev;
+
 	err = device_add(&serdev->dev);
 	if (err < 0) {
 		dev_err(&serdev->dev, "Can't add %s, status %d\n",
 			dev_name(&serdev->dev), err);
-		goto err_device_add;
+		goto err_clear_serdev;
 	}
 
 	dev_dbg(&serdev->dev, "device %s registered\n", dev_name(&serdev->dev));
 
-err_device_add:
+	return 0;
+
+err_clear_serdev:
+	ctrl->serdev = NULL;
 	return err;
 }
 EXPORT_SYMBOL_GPL(serdev_device_add);
@@ -90,7 +103,10 @@ EXPORT_SYMBOL_GPL(serdev_device_add);
  */
 void serdev_device_remove(struct serdev_device *serdev)
 {
+	struct serdev_controller *ctrl = serdev->ctrl;
+
 	device_unregister(&serdev->dev);
+	ctrl->serdev = NULL;
 }
 EXPORT_SYMBOL_GPL(serdev_device_remove);
 
@@ -260,6 +276,12 @@ static int serdev_drv_remove(struct device *dev)
 static ssize_t modalias_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
 {
+	int len;
+
+	len = acpi_device_modalias(dev, buf, PAGE_SIZE - 1);
+	if (len != -ENODEV)
+		return len;
+
 	return of_device_modalias(dev, buf, PAGE_SIZE);
 }
 DEVICE_ATTR_RO(modalias);
@@ -295,7 +317,6 @@ struct serdev_device *serdev_device_alloc(struct serdev_controller *ctrl)
 		return NULL;
 
 	serdev->ctrl = ctrl;
-	ctrl->serdev = serdev;
 	device_initialize(&serdev->dev);
 	serdev->dev.parent = &ctrl->dev;
 	serdev->dev.bus = &serdev_bus_type;
@@ -329,26 +350,31 @@ struct serdev_controller *serdev_controller_alloc(struct device *parent,
 	if (!ctrl)
 		return NULL;
 
-	device_initialize(&ctrl->dev);
-	ctrl->dev.type = &serdev_ctrl_type;
-	ctrl->dev.bus = &serdev_bus_type;
-	ctrl->dev.parent = parent;
-	ctrl->dev.of_node = parent->of_node;
-	serdev_controller_set_drvdata(ctrl, &ctrl[1]);
-
 	id = ida_simple_get(&ctrl_ida, 0, 0, GFP_KERNEL);
 	if (id < 0) {
 		dev_err(parent,
 			"unable to allocate serdev controller identifier.\n");
-		serdev_controller_put(ctrl);
-		return NULL;
+		goto err_free;
 	}
 
 	ctrl->nr = id;
+
+	device_initialize(&ctrl->dev);
+	ctrl->dev.type = &serdev_ctrl_type;
+	ctrl->dev.bus = &serdev_bus_type;
+	ctrl->dev.parent = parent;
+	ctrl->dev.of_node = parent->of_node;
+	serdev_controller_set_drvdata(ctrl, &ctrl[1]);
+
 	dev_set_name(&ctrl->dev, "serial%d", id);
 
 	dev_dbg(&ctrl->dev, "allocated controller 0x%p id %d\n", ctrl, id);
 	return ctrl;
+
+err_free:
+	kfree(ctrl);
+
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(serdev_controller_alloc);
 
@@ -385,6 +411,75 @@ static int of_serdev_register_devices(struct serdev_controller *ctrl)
 	return 0;
 }
 
+#ifdef CONFIG_ACPI
+static acpi_status acpi_serdev_register_device(struct serdev_controller *ctrl,
+					    struct acpi_device *adev)
+{
+	struct serdev_device *serdev = NULL;
+	int err;
+
+	if (acpi_bus_get_status(adev) || !adev->status.present ||
+	    acpi_device_enumerated(adev))
+		return AE_OK;
+
+	serdev = serdev_device_alloc(ctrl);
+	if (!serdev) {
+		dev_err(&ctrl->dev, "failed to allocate serdev device for %s\n",
+			dev_name(&adev->dev));
+		return AE_NO_MEMORY;
+	}
+
+	ACPI_COMPANION_SET(&serdev->dev, adev);
+	acpi_device_set_enumerated(adev);
+
+	err = serdev_device_add(serdev);
+	if (err) {
+		dev_err(&serdev->dev,
+			"failure adding ACPI serdev device. status %d\n", err);
+		serdev_device_put(serdev);
+	}
+
+	return AE_OK;
+}
+
+static acpi_status acpi_serdev_add_device(acpi_handle handle, u32 level,
+				       void *data, void **return_value)
+{
+	struct serdev_controller *ctrl = data;
+	struct acpi_device *adev;
+
+	if (acpi_bus_get_device(handle, &adev))
+		return AE_OK;
+
+	return acpi_serdev_register_device(ctrl, adev);
+}
+
+static int acpi_serdev_register_devices(struct serdev_controller *ctrl)
+{
+	acpi_status status;
+	acpi_handle handle;
+
+	handle = ACPI_HANDLE(ctrl->dev.parent);
+	if (!handle)
+		return -ENODEV;
+
+	status = acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1,
+				     acpi_serdev_add_device, NULL, ctrl, NULL);
+	if (ACPI_FAILURE(status))
+		dev_dbg(&ctrl->dev, "failed to enumerate serdev slaves\n");
+
+	if (!ctrl->serdev)
+		return -ENODEV;
+
+	return 0;
+}
+#else
+static inline int acpi_serdev_register_devices(struct serdev_controller *ctrl)
+{
+	return -ENODEV;
+}
+#endif /* CONFIG_ACPI */
+
 /**
  * serdev_controller_add() - Add an serdev controller
  * @ctrl:	controller to be registered.
@@ -394,7 +489,7 @@ static int of_serdev_register_devices(struct serdev_controller *ctrl)
  */
 int serdev_controller_add(struct serdev_controller *ctrl)
 {
-	int ret;
+	int ret_of, ret_acpi, ret;
 
 	/* Can't register until after driver model init */
 	if (WARN_ON(!is_registered))
@@ -404,9 +499,14 @@ int serdev_controller_add(struct serdev_controller *ctrl)
 	if (ret)
 		return ret;
 
-	ret = of_serdev_register_devices(ctrl);
-	if (ret)
+	ret_of = of_serdev_register_devices(ctrl);
+	ret_acpi = acpi_serdev_register_devices(ctrl);
+	if (ret_of && ret_acpi) {
+		dev_dbg(&ctrl->dev, "no devices registered: of:%d acpi:%d\n",
+			ret_of, ret_acpi);
+		ret = -ENODEV;
 		goto out_dev_del;
+	}
 
 	dev_dbg(&ctrl->dev, "serdev%d registered: dev:%p\n",
 		ctrl->nr, &ctrl->dev);
diff --git a/drivers/tty/serdev/serdev-ttyport.c b/drivers/tty/serdev/serdev-ttyport.c
index 302018d67efa..ce7ad0acee7a 100644
--- a/drivers/tty/serdev/serdev-ttyport.c
+++ b/drivers/tty/serdev/serdev-ttyport.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2016-2017 Linaro Ltd., Rob Herring <robh@kernel.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 #include <linux/kernel.h>
 #include <linux/serdev.h>
@@ -96,16 +88,21 @@ static int ttyport_open(struct serdev_controller *ctrl)
 	struct serport *serport = serdev_controller_get_drvdata(ctrl);
 	struct tty_struct *tty;
 	struct ktermios ktermios;
+	int ret;
 
 	tty = tty_init_dev(serport->tty_drv, serport->tty_idx);
 	if (IS_ERR(tty))
 		return PTR_ERR(tty);
 	serport->tty = tty;
 
-	if (tty->ops->open)
-		tty->ops->open(serport->tty, NULL);
-	else
-		tty_port_open(serport->port, tty, NULL);
+	if (!tty->ops->open || !tty->ops->close) {
+		ret = -ENODEV;
+		goto err_unlock;
+	}
+
+	ret = tty->ops->open(serport->tty, NULL);
+	if (ret)
+		goto err_close;
 
 	/* Bring the UART into a known 8 bits no parity hw fc state */
 	ktermios = tty->termios;
@@ -122,6 +119,14 @@ static int ttyport_open(struct serdev_controller *ctrl)
 
 	tty_unlock(serport->tty);
 	return 0;
+
+err_close:
+	tty->ops->close(tty, NULL);
+err_unlock:
+	tty_unlock(tty);
+	tty_release_struct(tty, serport->tty_idx);
+
+	return ret;
 }
 
 static void ttyport_close(struct serdev_controller *ctrl)
diff --git a/drivers/tty/serial/21285.c b/drivers/tty/serial/21285.c
index 804632b4a929..32b3acf8150a 100644
--- a/drivers/tty/serial/21285.c
+++ b/drivers/tty/serial/21285.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the serial port on the 21285 StrongArm-110 core logic chip.
  *
diff --git a/drivers/tty/serial/8250/8250.h b/drivers/tty/serial/8250/8250.h
index b2bdc35f7495..ebfb0bd5bef5 100644
--- a/drivers/tty/serial/8250/8250.h
+++ b/drivers/tty/serial/8250/8250.h
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for 8250/16550-type serial ports
  *
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *
  *  Copyright (C) 2001 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/serial_8250.h>
diff --git a/drivers/tty/serial/8250/8250_accent.c b/drivers/tty/serial/8250/8250_accent.c
index 522aeae05192..1691f1a57f89 100644
--- a/drivers/tty/serial/8250/8250_accent.c
+++ b/drivers/tty/serial/8250/8250_accent.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005 Russell King.
  *  Data taken from include/asm-i386/serial.h
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/tty/serial/8250/8250_acorn.c b/drivers/tty/serial/8250/8250_acorn.c
index 402dfdd4940e..758c4aa203ab 100644
--- a/drivers/tty/serial/8250/8250_acorn.c
+++ b/drivers/tty/serial/8250/8250_acorn.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/drivers/serial/acorn.c
  *
  *  Copyright (C) 1996-2003 Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/types.h>
diff --git a/drivers/tty/serial/8250/8250_aspeed_vuart.c b/drivers/tty/serial/8250/8250_aspeed_vuart.c
index 33a801353114..74a408d9db24 100644
--- a/drivers/tty/serial/8250/8250_aspeed_vuart.c
+++ b/drivers/tty/serial/8250/8250_aspeed_vuart.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Serial Port driver for Aspeed VUART device
  *
  *    Copyright (C) 2016 Jeremy Kerr <jk@ozlabs.org>, IBM Corp.
  *    Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>, IBM Corp.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
  */
 #include <linux/device.h>
 #include <linux/module.h>
diff --git a/drivers/tty/serial/8250/8250_bcm2835aux.c b/drivers/tty/serial/8250/8250_bcm2835aux.c
index a23c7da42ea8..bd53661103eb 100644
--- a/drivers/tty/serial/8250/8250_bcm2835aux.c
+++ b/drivers/tty/serial/8250/8250_bcm2835aux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Serial port driver for BCM2835AUX UART
  *
@@ -5,11 +6,6 @@
  *
  * Based on 8250_lpc18xx.c:
  * Copyright (C) 2015 Joachim Eastwood <manabian@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/clk.h>
diff --git a/drivers/tty/serial/8250/8250_boca.c b/drivers/tty/serial/8250/8250_boca.c
index a63b5998e383..a9b97c034653 100644
--- a/drivers/tty/serial/8250/8250_boca.c
+++ b/drivers/tty/serial/8250/8250_boca.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005 Russell King.
  *  Data taken from include/asm-i386/serial.h
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index d29b512a7d9f..d64afdd93872 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Universal/legacy driver for 8250/16550-type serial ports
  *
@@ -11,11 +12,6 @@
  *	      userspace-configurable "phantom" ports
  *	      "serial8250" platform devices
  *	      serial8250_register_8250_port() ports
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/module.h>
@@ -262,17 +258,17 @@ static void serial_unlink_irq_chain(struct uart_8250_port *up)
  * barely passable results for a 16550A.  (Although at the expense
  * of much CPU overhead).
  */
-static void serial8250_timeout(unsigned long data)
+static void serial8250_timeout(struct timer_list *t)
 {
-	struct uart_8250_port *up = (struct uart_8250_port *)data;
+	struct uart_8250_port *up = from_timer(up, t, timer);
 
 	up->port.handle_irq(&up->port);
 	mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port));
 }
 
-static void serial8250_backup_timeout(unsigned long data)
+static void serial8250_backup_timeout(struct timer_list *t)
 {
-	struct uart_8250_port *up = (struct uart_8250_port *)data;
+	struct uart_8250_port *up = from_timer(up, t, timer);
 	unsigned int iir, ier = 0, lsr;
 	unsigned long flags;
 
@@ -329,8 +325,7 @@ static int univ8250_setup_irq(struct uart_8250_port *up)
 	if (up->bugs & UART_BUG_THRE) {
 		pr_debug("ttyS%d - using backup timer\n", serial_index(port));
 
-		up->timer.function = serial8250_backup_timeout;
-		up->timer.data = (unsigned long)up;
+		up->timer.function = (TIMER_FUNC_TYPE)serial8250_backup_timeout;
 		mod_timer(&up->timer, jiffies +
 			  uart_poll_timeout(port) + HZ / 5);
 	}
@@ -341,7 +336,6 @@ static int univ8250_setup_irq(struct uart_8250_port *up)
 	 * driver used to do this with IRQ0.
 	 */
 	if (!port->irq) {
-		up->timer.data = (unsigned long)up;
 		mod_timer(&up->timer, jiffies + uart_poll_timeout(port));
 	} else
 		retval = serial_link_irq_chain(up);
@@ -354,7 +348,7 @@ static void univ8250_release_irq(struct uart_8250_port *up)
 	struct uart_port *port = &up->port;
 
 	del_timer_sync(&up->timer);
-	up->timer.function = serial8250_timeout;
+	up->timer.function = (TIMER_FUNC_TYPE)serial8250_timeout;
 	if (port->irq)
 		serial_unlink_irq_chain(up);
 }
@@ -525,8 +519,7 @@ static void __init serial8250_isa_init_ports(void)
 			base_ops = port->ops;
 		port->ops = &univ8250_port_ops;
 
-		init_timer(&up->timer);
-		up->timer.function = serial8250_timeout;
+		timer_setup(&up->timer, serial8250_timeout, 0);
 
 		up->ops = &univ8250_driver_ops;
 
diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c
index 26f17456b0d7..bfa1a857f3ff 100644
--- a/drivers/tty/serial/8250/8250_dma.c
+++ b/drivers/tty/serial/8250/8250_dma.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * 8250_dma.c - DMA Engine API support for 8250.c
  *
  * Copyright (C) 2013 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 7e638997bfc2..5bb0c42c88dd 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Synopsys DesignWare 8250 driver.
  *
  * Copyright 2011 Picochip, Jamie Iles.
  * Copyright 2013 Intel Corporation
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * The Synopsys DesignWare 8250 has an extra feature whereby it detects if the
  * LCR is written whilst busy.  If it is, then a busy detect interrupt is
  * raised, the LCR needs to be rewritten and the uart status register read.
@@ -256,25 +252,31 @@ static void dw8250_set_termios(struct uart_port *p, struct ktermios *termios,
 			       struct ktermios *old)
 {
 	unsigned int baud = tty_termios_baud_rate(termios);
+	unsigned int target_rate, min_rate, max_rate;
 	struct dw8250_data *d = p->private_data;
 	long rate;
-	int ret;
+	int i, ret;
 
 	if (IS_ERR(d->clk) || !old)
 		goto out;
 
-	clk_disable_unprepare(d->clk);
-	rate = clk_round_rate(d->clk, baud * 16);
-	if (rate < 0)
-		ret = rate;
-	else if (rate == 0)
-		ret = -ENOENT;
-	else
-		ret = clk_set_rate(d->clk, rate);
-	clk_prepare_enable(d->clk);
+	/* Find a clk rate within +/-1.6% of an integer multiple of baudx16 */
+	target_rate = baud * 16;
+	min_rate = target_rate - (target_rate >> 6);
+	max_rate = target_rate + (target_rate >> 6);
 
-	if (!ret)
-		p->uartclk = rate;
+	for (i = 1; i <= UART_DIV_MAX; i++) {
+		rate = clk_round_rate(d->clk, i * target_rate);
+		if (rate >= i * min_rate && rate <= i * max_rate)
+			break;
+	}
+	if (i <= UART_DIV_MAX) {
+		clk_disable_unprepare(d->clk);
+		ret = clk_set_rate(d->clk, rate);
+		clk_prepare_enable(d->clk);
+		if (!ret)
+			p->uartclk = rate;
+	}
 
 out:
 	p->status &= ~UPSTAT_AUTOCTS;
diff --git a/drivers/tty/serial/8250/8250_early.c b/drivers/tty/serial/8250/8250_early.c
index af72ec32e404..362c25ff188a 100644
--- a/drivers/tty/serial/8250/8250_early.c
+++ b/drivers/tty/serial/8250/8250_early.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Early serial console for 8250/16550 devices
  *
  * (c) Copyright 2004 Hewlett-Packard Development Company, L.P.
  *	Bjorn Helgaas <bjorn.helgaas@hp.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * Based on the 8250.c serial driver, Copyright (C) 2001 Russell King,
  * and on early_printk.c by Andi Kleen.
  *
diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c
index 0b6381214917..f6a86f2bc4e5 100644
--- a/drivers/tty/serial/8250/8250_em.c
+++ b/drivers/tty/serial/8250/8250_em.c
@@ -1,20 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas Emma Mobile 8250 driver
  *
  *  Copyright (C) 2012 Magnus Damm
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <linux/device.h>
diff --git a/drivers/tty/serial/8250/8250_exar.c b/drivers/tty/serial/8250/8250_exar.c
index c55624703fdf..a402878c9f30 100644
--- a/drivers/tty/serial/8250/8250_exar.c
+++ b/drivers/tty/serial/8250/8250_exar.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Probe module for 8250/16550-type Exar chips PCI serial ports.
  *
  *  Based on drivers/tty/serial/8250/8250_pci.c,
  *
  *  Copyright (C) 2017 Sudip Mukherjee, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
  */
 #include <linux/acpi.h>
 #include <linux/dmi.h>
diff --git a/drivers/tty/serial/8250/8250_exar_st16c554.c b/drivers/tty/serial/8250/8250_exar_st16c554.c
index 3a7cb8262bb9..933811ebfaac 100644
--- a/drivers/tty/serial/8250/8250_exar_st16c554.c
+++ b/drivers/tty/serial/8250/8250_exar_st16c554.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Written by Paul B Schroeder < pschroeder "at" uplogix "dot" com >
  *  Based on 8250_boca.
  *
  *  Copyright (C) 2005 Russell King.
  *  Data taken from include/asm-i386/serial.h
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/tty/serial/8250/8250_fintek.c b/drivers/tty/serial/8250/8250_fintek.c
index e500f7dd2470..79a4958b3f5c 100644
--- a/drivers/tty/serial/8250/8250_fintek.c
+++ b/drivers/tty/serial/8250/8250_fintek.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Probe for F81216A LPC to 4 UART
  *
  *  Copyright (C) 2014-2016 Ricardo Ribalda, Qtechnology A/S
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
  */
 #include <linux/module.h>
 #include <linux/pci.h>
@@ -40,6 +36,16 @@
 #define IRQ_LEVEL_LOW	0
 #define IRQ_EDGE_HIGH	BIT(5)
 
+/*
+ * F81216H clock source register, the value and mask is the same with F81866,
+ * but it's on F0h.
+ *
+ * Clock speeds for UART (register F0h)
+ * 00: 1.8432MHz.
+ * 01: 18.432MHz.
+ * 10: 24MHz.
+ * 11: 14.769MHz.
+ */
 #define RS485  0xF0
 #define RTS_INVERT BIT(5)
 #define RS485_URA BIT(4)
@@ -118,6 +124,9 @@ static int fintek_8250_enter_key(u16 base_port, u8 key)
 	if (!request_muxed_region(base_port, 2, "8250_fintek"))
 		return -EBUSY;
 
+	/* Force to deactive all SuperIO in this base_port */
+	outb(EXIT_KEY, base_port + ADDR_PORT);
+
 	outb(key, base_port + ADDR_PORT);
 	outb(key, base_port + ADDR_PORT);
 	return 0;
@@ -188,14 +197,27 @@ static int fintek_8250_rs485_config(struct uart_port *port,
 	if (!pdata)
 		return -EINVAL;
 
-	if (rs485->flags & SER_RS485_ENABLED)
+	/* Hardware do not support same RTS level on send and receive */
+	if (!(rs485->flags & SER_RS485_RTS_ON_SEND) ==
+			!(rs485->flags & SER_RS485_RTS_AFTER_SEND))
+		return -EINVAL;
+
+	if (rs485->flags & SER_RS485_ENABLED) {
 		memset(rs485->padding, 0, sizeof(rs485->padding));
-	else
+		config |= RS485_URA;
+	} else {
 		memset(rs485, 0, sizeof(*rs485));
+	}
 
 	rs485->flags &= SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND |
 			SER_RS485_RTS_AFTER_SEND;
 
+	/* Only the first port supports delays */
+	if (pdata->index) {
+		rs485->delay_rts_before_send = 0;
+		rs485->delay_rts_after_send = 0;
+	}
+
 	if (rs485->delay_rts_before_send) {
 		rs485->delay_rts_before_send = 1;
 		config |= TXW4C_IRA;
@@ -206,12 +228,6 @@ static int fintek_8250_rs485_config(struct uart_port *port,
 		config |= RXW4C_IRA;
 	}
 
-	if ((!!(rs485->flags & SER_RS485_RTS_ON_SEND)) ==
-			(!!(rs485->flags & SER_RS485_RTS_AFTER_SEND)))
-		rs485->flags &= SER_RS485_ENABLED;
-	else
-		config |= RS485_URA;
-
 	if (rs485->flags & SER_RS485_RTS_ON_SEND)
 		config |= RTS_INVERT;
 
@@ -280,13 +296,91 @@ static void fintek_8250_goto_highspeed(struct uart_8250_port *uart,
 			F81866_UART_CLK_MASK,
 			F81866_UART_CLK_14_769MHZ);
 
-			uart->port.uartclk = 921600 * 16;
+		uart->port.uartclk = 921600 * 16;
 		break;
 	default: /* leave clock speed untouched */
 		break;
 	}
 }
 
+void fintek_8250_set_termios(struct uart_port *port, struct ktermios *termios,
+			struct ktermios *old)
+{
+	struct fintek_8250 *pdata = port->private_data;
+	unsigned int baud = tty_termios_baud_rate(termios);
+	int i;
+	u8 reg;
+	static u32 baudrate_table[] = {115200, 921600, 1152000, 1500000};
+	static u8 clock_table[] = { F81866_UART_CLK_1_8432MHZ,
+			F81866_UART_CLK_14_769MHZ, F81866_UART_CLK_18_432MHZ,
+			F81866_UART_CLK_24MHZ };
+
+	/*
+	 * We'll use serial8250_do_set_termios() for baud = 0, otherwise It'll
+	 * crash on baudrate_table[i] % baud with "division by zero".
+	 */
+	if (!baud)
+		goto exit;
+
+	switch (pdata->pid) {
+	case CHIP_ID_F81216H:
+		reg = RS485;
+		break;
+	case CHIP_ID_F81866:
+		reg = F81866_UART_CLK;
+		break;
+	default:
+		/* Don't change clocksource with unknown PID */
+		dev_warn(port->dev,
+			"%s: pid: %x Not support. use default set_termios.\n",
+			__func__, pdata->pid);
+		goto exit;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(baudrate_table); ++i) {
+		if (baud > baudrate_table[i] || baudrate_table[i] % baud != 0)
+			continue;
+
+		if (port->uartclk == baudrate_table[i] * 16)
+			break;
+
+		if (fintek_8250_enter_key(pdata->base_port, pdata->key))
+			continue;
+
+		port->uartclk = baudrate_table[i] * 16;
+
+		sio_write_reg(pdata, LDN, pdata->index);
+		sio_write_mask_reg(pdata, reg, F81866_UART_CLK_MASK,
+				clock_table[i]);
+
+		fintek_8250_exit_key(pdata->base_port);
+		break;
+	}
+
+	if (i == ARRAY_SIZE(baudrate_table)) {
+		baud = tty_termios_baud_rate(old);
+		tty_termios_encode_baud_rate(termios, baud, baud);
+	}
+
+exit:
+	serial8250_do_set_termios(port, termios, old);
+}
+
+static void fintek_8250_set_termios_handler(struct uart_8250_port *uart)
+{
+	struct fintek_8250 *pdata = uart->port.private_data;
+
+	switch (pdata->pid) {
+	case CHIP_ID_F81216H:
+	case CHIP_ID_F81866:
+		uart->port.set_termios = fintek_8250_set_termios;
+		break;
+
+	default:
+		break;
+	}
+}
+
 static int probe_setup_port(struct fintek_8250 *pdata,
 					struct uart_8250_port *uart)
 {
@@ -373,6 +467,7 @@ int fintek_8250_probe(struct uart_8250_port *uart)
 	memcpy(pdata, &probe_data, sizeof(probe_data));
 	uart->port.private_data = pdata;
 	fintek_8250_set_rs485_handler(uart);
+	fintek_8250_set_termios_handler(uart);
 
 	return 0;
 }
diff --git a/drivers/tty/serial/8250/8250_fourport.c b/drivers/tty/serial/8250/8250_fourport.c
index 4045180a8cfc..3215b9b7afde 100644
--- a/drivers/tty/serial/8250/8250_fourport.c
+++ b/drivers/tty/serial/8250/8250_fourport.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005 Russell King.
  *  Data taken from include/asm-i386/serial.h
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/tty/serial/8250/8250_fsl.c b/drivers/tty/serial/8250/8250_fsl.c
index 910bfee5a88b..6640a4c7ddd1 100644
--- a/drivers/tty/serial/8250/8250_fsl.c
+++ b/drivers/tty/serial/8250/8250_fsl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/serial_reg.h>
 #include <linux/serial_8250.h>
 
@@ -6,10 +7,6 @@
 /*
  * Freescale 16550 UART "driver", Copyright (C) 2011 Paul Gortmaker.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * This isn't a full driver; it just provides an alternate IRQ
  * handler to deal with an errata.  Everything else is just
  * using the bog standard 8250 support.
diff --git a/drivers/tty/serial/8250/8250_gsc.c b/drivers/tty/serial/8250/8250_gsc.c
index df2931e1e086..0809ae2aa9b1 100644
--- a/drivers/tty/serial/8250/8250_gsc.c
+++ b/drivers/tty/serial/8250/8250_gsc.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	Serial Device Initialisation for Lasi/Asp/Wax/Dino
  *
  *	(c) Copyright Matthew Wilcox <willy@debian.org> 2001-2002
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
  */
 
 #include <linux/errno.h>
diff --git a/drivers/tty/serial/8250/8250_hp300.c b/drivers/tty/serial/8250/8250_hp300.c
index 115190b7962a..3012ea03d22c 100644
--- a/drivers/tty/serial/8250/8250_hp300.c
+++ b/drivers/tty/serial/8250/8250_hp300.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the 98626/98644/internal serial interface on hp300/hp400
  * (based on the National Semiconductor INS8250/NS16550AF/WD16C552 UARTs)
diff --git a/drivers/tty/serial/8250/8250_hub6.c b/drivers/tty/serial/8250/8250_hub6.c
index 27124e21eb96..273f59b9bca5 100644
--- a/drivers/tty/serial/8250/8250_hub6.c
+++ b/drivers/tty/serial/8250/8250_hub6.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 2005 Russell King.
  *  Data taken from include/asm-i386/serial.h
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/init.h>
diff --git a/drivers/tty/serial/8250/8250_ingenic.c b/drivers/tty/serial/8250/8250_ingenic.c
index 464389b28900..6af84900870e 100644
--- a/drivers/tty/serial/8250/8250_ingenic.c
+++ b/drivers/tty/serial/8250/8250_ingenic.c
@@ -1,17 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010 Lars-Peter Clausen <lars@metafoo.de>
  * Copyright (C) 2015 Imagination Technologies
  *
  * Ingenic SoC UART support
- *
- * This program is free software; you can redistribute	 it and/or modify it
- * under  the terms of	 the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the	License, or (at your
- * option) any later version.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/tty/serial/8250/8250_lpc18xx.c b/drivers/tty/serial/8250/8250_lpc18xx.c
index 99cd478851ff..eddf119374e1 100644
--- a/drivers/tty/serial/8250/8250_lpc18xx.c
+++ b/drivers/tty/serial/8250/8250_lpc18xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Serial port driver for NXP LPC18xx/43xx UART
  *
@@ -6,11 +7,6 @@
  * Based on 8250_mtk.c:
  * Copyright (c) 2014 MundoReader S.L.
  * Matthias Brugger <matthias.bgg@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/clk.h>
diff --git a/drivers/tty/serial/8250/8250_lpss.c b/drivers/tty/serial/8250/8250_lpss.c
index 7dddd7e6a01c..98dbc796353f 100644
--- a/drivers/tty/serial/8250/8250_lpss.c
+++ b/drivers/tty/serial/8250/8250_lpss.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 8250_lpss.c - Driver for UART on Intel Braswell and various other Intel SoCs
  *
  * Copyright (C) 2016 Intel Corporation
  * Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/tty/serial/8250/8250_mid.c b/drivers/tty/serial/8250/8250_mid.c
index ec957cce8c9a..efa0515139f8 100644
--- a/drivers/tty/serial/8250/8250_mid.c
+++ b/drivers/tty/serial/8250/8250_mid.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 8250_mid.c - Driver for UART on Intel Penwell and various other Intel SOCs
  *
  * Copyright (C) 2015 Intel Corporation
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
@@ -23,10 +20,11 @@
 #define PCI_DEVICE_ID_INTEL_PNW_UART2	0x081c
 #define PCI_DEVICE_ID_INTEL_PNW_UART3	0x081d
 #define PCI_DEVICE_ID_INTEL_TNG_UART	0x1191
+#define PCI_DEVICE_ID_INTEL_CDF_UART	0x18d8
 #define PCI_DEVICE_ID_INTEL_DNV_UART	0x19d8
 
 /* Intel MID Specific registers */
-#define INTEL_MID_UART_DNV_FISR		0x08
+#define INTEL_MID_UART_FISR		0x08
 #define INTEL_MID_UART_PS		0x30
 #define INTEL_MID_UART_MUL		0x34
 #define INTEL_MID_UART_DIV		0x38
@@ -130,7 +128,7 @@ static int dnv_handle_irq(struct uart_port *p)
 {
 	struct mid8250 *mid = p->private_data;
 	struct uart_8250_port *up = up_to_u8250p(p);
-	unsigned int fisr = serial_port_in(p, INTEL_MID_UART_DNV_FISR);
+	unsigned int fisr = serial_port_in(p, INTEL_MID_UART_FISR);
 	u32 status;
 	int ret = 0;
 	int err;
@@ -377,6 +375,7 @@ static const struct pci_device_id pci_ids[] = {
 	MID_DEVICE(PCI_DEVICE_ID_INTEL_PNW_UART2, pnw_board),
 	MID_DEVICE(PCI_DEVICE_ID_INTEL_PNW_UART3, pnw_board),
 	MID_DEVICE(PCI_DEVICE_ID_INTEL_TNG_UART, tng_board),
+	MID_DEVICE(PCI_DEVICE_ID_INTEL_CDF_UART, dnv_board),
 	MID_DEVICE(PCI_DEVICE_ID_INTEL_DNV_UART, dnv_board),
 	{ },
 };
diff --git a/drivers/tty/serial/8250/8250_moxa.c b/drivers/tty/serial/8250/8250_moxa.c
index d5069b2d4d79..1ee4cd94d4fa 100644
--- a/drivers/tty/serial/8250/8250_moxa.c
+++ b/drivers/tty/serial/8250/8250_moxa.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 8250_moxa.c - MOXA Smartio/Industio MUE multiport serial driver.
  *
  * Author: Mathieu OTHACEHE <m.othacehe@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/8250/8250_mtk.c b/drivers/tty/serial/8250/8250_mtk.c
index fb45770d47aa..dd5e1cede2b5 100644
--- a/drivers/tty/serial/8250/8250_mtk.c
+++ b/drivers/tty/serial/8250/8250_mtk.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Mediatek 8250 driver.
  *
  * Copyright (c) 2014 MundoReader S.L.
  * Author: Matthias Brugger <matthias.bgg@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 #include <linux/clk.h>
 #include <linux/io.h>
@@ -61,7 +52,7 @@ mtk8250_set_termios(struct uart_port *port, struct ktermios *termios,
 	 * registers to their default values.
 	 */
 	baud = uart_get_baud_rate(port, termios, old,
-				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 16 / UART_DIV_MAX,
 				  port->uartclk);
 
 	if (baud <= 115200) {
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index 1222c005fb98..1e67a7e4a5fd 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Serial Port driver for Open Firmware platform devices
  *
  *    Copyright (C) 2006 Arnd Bergmann <arnd@arndb.de>, IBM Corp.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- *
  */
 #include <linux/console.h>
 #include <linux/module.h>
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 833771bca0a5..bd40ba402410 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 8250-core based driver for the OMAP internal UART
  *
@@ -199,7 +200,7 @@ static void omap_8250_get_divisor(struct uart_port *port, unsigned int baud,
 	 * Old custom speed handling.
 	 */
 	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST) {
-		priv->quot = port->custom_divisor & 0xffff;
+		priv->quot = port->custom_divisor & UART_DIV_MAX;
 		/*
 		 * I assume that nobody is using this. But hey, if somebody
 		 * would like to specify the divisor _and_ the mode then the
@@ -358,7 +359,7 @@ static void omap_8250_set_termios(struct uart_port *port,
 	 * Ask the core to calculate the divisor for us.
 	 */
 	baud = uart_get_baud_rate(port, termios, old,
-				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 16 / UART_DIV_MAX,
 				  port->uartclk / 13);
 	omap_8250_get_divisor(port, baud, priv);
 
diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 0c101a7470b0..b7e0e3416641 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Probe module for 8250/16550-type PCI serial ports.
  *
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *
  *  Copyright (C) 2001 Russell King, All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
  */
 #undef DEBUG
 #include <linux/module.h>
@@ -3368,6 +3365,7 @@ static const struct pci_device_id blacklist[] = {
 	{ PCI_VDEVICE(INTEL, 0x081c), },
 	{ PCI_VDEVICE(INTEL, 0x081d), },
 	{ PCI_VDEVICE(INTEL, 0x1191), },
+	{ PCI_VDEVICE(INTEL, 0x18d8), },
 	{ PCI_VDEVICE(INTEL, 0x19d8), },
 
 	/* Intel platforms with DesignWare UART */
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index 34f05ed78b68..431e69a5a6a0 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Probe for 8250/16550-type ISAPNP serial ports.
  *
@@ -6,10 +7,6 @@
  *  Copyright (C) 2001 Russell King, All Rights Reserved.
  *
  *  Ported to the Linux PnP Layer - (C) Adam Belay.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
  */
 #include <linux/module.h>
 #include <linux/pci.h>
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index f0cc04f62b67..11434551ac0a 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Base port operations for 8250/16550-type serial ports
  *
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *  Split from 8250_core.c, Copyright (C) 2001 Russell King.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * A note about mapbase / membase
  *
  *  mapbase is the physical address of the IO port.
@@ -1516,7 +1512,6 @@ static inline void __stop_tx(struct uart_8250_port *p)
 			return;
 
 		em485->active_timer = NULL;
-		hrtimer_cancel(&em485->start_tx_timer);
 
 		__stop_tx_rs485(p);
 	}
@@ -1580,8 +1575,6 @@ static inline void start_tx_rs485(struct uart_port *port)
 		serial8250_stop_rx(&up->port);
 
 	em485->active_timer = NULL;
-	if (hrtimer_is_queued(&em485->stop_tx_timer))
-		hrtimer_cancel(&em485->stop_tx_timer);
 
 	mcr = serial8250_in_MCR(up);
 	if (!!(up->port.rs485.flags & SER_RS485_RTS_ON_SEND) !=
@@ -2586,8 +2579,11 @@ static void serial8250_set_divisor(struct uart_port *port, unsigned int baud,
 	serial_dl_write(up, quot);
 
 	/* XR17V35x UARTs have an extra fractional divisor register (DLD) */
-	if (up->port.type == PORT_XR17V35X)
+	if (up->port.type == PORT_XR17V35X) {
+		/* Preserve bits not related to baudrate; DLD[7:4]. */
+		quot_frac |= serial_port_in(port, 0x2) & 0xf0;
 		serial_port_out(port, 0x2, quot_frac);
+	}
 }
 
 static unsigned int serial8250_get_baud_rate(struct uart_port *port,
@@ -2601,7 +2597,7 @@ static unsigned int serial8250_get_baud_rate(struct uart_port *port,
 	 * causing transmission errors.
 	 */
 	return uart_get_baud_rate(port, termios, old,
-				  port->uartclk / 16 / 0xffff,
+				  port->uartclk / 16 / UART_DIV_MAX,
 				  port->uartclk);
 }
 
diff --git a/drivers/tty/serial/8250/8250_pxa.c b/drivers/tty/serial/8250/8250_pxa.c
index 4d68731af534..b9bcbe20a2be 100644
--- a/drivers/tty/serial/8250/8250_pxa.c
+++ b/drivers/tty/serial/8250/8250_pxa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  drivers/tty/serial/8250/8250_pxa.c -- driver for PXA on-board UARTS
  *  Copyright:	(C) 2013 Sergei Ianovich <ynvich@gmail.com>
@@ -7,12 +8,6 @@
  *  Copyright:	(C) 2003 Monta Vista Software, Inc.
  *
  *  Based on drivers/serial/8250.c by Russell King.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 
 #include <linux/device.h>
diff --git a/drivers/tty/serial/8250/8250_uniphier.c b/drivers/tty/serial/8250/8250_uniphier.c
index 8a10b10e27aa..45ef506293ae 100644
--- a/drivers/tty/serial/8250/8250_uniphier.c
+++ b/drivers/tty/serial/8250/8250_uniphier.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/tty/serial/8250/Makefile b/drivers/tty/serial/8250/Makefile
index 6a18d2d768fe..18751bc63a84 100644
--- a/drivers/tty/serial/8250/Makefile
+++ b/drivers/tty/serial/8250/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the 8250 serial device drivers.
 #
diff --git a/drivers/tty/serial/8250/serial_cs.c b/drivers/tty/serial/8250/serial_cs.c
index 933c2688dd7e..9963a766dcfb 100644
--- a/drivers/tty/serial/8250/serial_cs.c
+++ b/drivers/tty/serial/8250/serial_cs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MPL-1.1)
 /*======================================================================
 
     A driver for PCMCIA serial devices
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index fe88a75d9a59..842d185d697e 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel serial device drivers.
 #
diff --git a/drivers/tty/serial/altera_jtaguart.c b/drivers/tty/serial/altera_jtaguart.c
index 0475f5d261ce..c90e503d6b57 100644
--- a/drivers/tty/serial/altera_jtaguart.c
+++ b/drivers/tty/serial/altera_jtaguart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * altera_jtaguart.c -- Altera JTAG UART driver
  *
@@ -6,11 +7,6 @@
  * (C) Copyright 2003-2007, Greg Ungerer <gerg@snapgear.com>
  * (C) Copyright 2008, Thomas Chou <thomas@wytron.com.tw>
  * (C) Copyright 2010, Tobias Klauser <tklauser@distanz.ch>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/tty/serial/altera_uart.c b/drivers/tty/serial/altera_uart.c
index 3e4b717670d7..b88b05f8e81e 100644
--- a/drivers/tty/serial/altera_uart.c
+++ b/drivers/tty/serial/altera_uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * altera_uart.c -- Altera UART driver
  *
@@ -6,11 +7,6 @@
  * (C) Copyright 2003-2007, Greg Ungerer <gerg@snapgear.com>
  * (C) Copyright 2008, Thomas Chou <thomas@wytron.com.tw>
  * (C) Copyright 2010, Tobias Klauser <tklauser@distanz.ch>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
@@ -288,10 +284,10 @@ static irqreturn_t altera_uart_interrupt(int irq, void *data)
 	return IRQ_RETVAL(isr);
 }
 
-static void altera_uart_timer(unsigned long data)
+static void altera_uart_timer(struct timer_list *t)
 {
-	struct uart_port *port = (void *)data;
-	struct altera_uart *pp = container_of(port, struct altera_uart, port);
+	struct altera_uart *pp = from_timer(pp, t, tmr);
+	struct uart_port *port = &pp->port;
 
 	altera_uart_interrupt(0, port);
 	mod_timer(&pp->tmr, jiffies + uart_poll_timeout(port));
@@ -314,7 +310,7 @@ static int altera_uart_startup(struct uart_port *port)
 	int ret;
 
 	if (!port->irq) {
-		setup_timer(&pp->tmr, altera_uart_timer, (unsigned long)port);
+		timer_setup(&pp->tmr, altera_uart_timer, 0);
 		mod_timer(&pp->tmr, jiffies + uart_poll_timeout(port));
 		return 0;
 	}
diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 9ec4b8d2879f..2c37d11726ab 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for AMBA serial ports
  *
@@ -6,20 +7,6 @@
  *  Copyright 1999 ARM Limited
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  * This is a generic driver for ARM AMBA-type serial ports.  They
  * have a lot of 16550-like features, but are not register compatible.
  * Note that although they do have CTS, DCD and DSR inputs, they do
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 111e6a950779..04af8de8617e 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for AMBA serial ports
  *
@@ -7,20 +8,6 @@
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
  *  Copyright (C) 2010 ST-Ericsson SA
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  * This is a generic driver for ARM AMBA-type serial ports.  They
  * have a lot of 16550-like features, but are not register compatible.
  * Note that although they do have CTS, DCD and DSR inputs, they do
@@ -281,7 +268,6 @@ struct uart_amba_port {
 	unsigned int		old_status;
 	unsigned int		fifosize;	/* vendor-specific */
 	unsigned int		old_cr;		/* state during shutdown */
-	bool			autorts;
 	unsigned int		fixed_baud;	/* vendor-set fixed baud rate */
 	char			type[12];
 #ifdef CONFIG_DMA_ENGINE
@@ -1078,9 +1064,9 @@ static inline void pl011_dma_rx_stop(struct uart_amba_port *uap)
  * Every polling, It checks the residue in the dma buffer and transfer
  * data to the tty. Also, last_residue is updated for the next polling.
  */
-static void pl011_dma_rx_poll(unsigned long args)
+static void pl011_dma_rx_poll(struct timer_list *t)
 {
-	struct uart_amba_port *uap = (struct uart_amba_port *)args;
+	struct uart_amba_port *uap = from_timer(uap, t, dmarx.timer);
 	struct tty_port *port = &uap->port.state->port;
 	struct pl011_dmarx_data *dmarx = &uap->dmarx;
 	struct dma_chan *rxchan = uap->dmarx.chan;
@@ -1192,9 +1178,7 @@ skip_rx:
 			dev_dbg(uap->port.dev, "could not trigger initial "
 				"RX DMA job, fall back to interrupt mode\n");
 		if (uap->dmarx.poll_rate) {
-			init_timer(&(uap->dmarx.timer));
-			uap->dmarx.timer.function = pl011_dma_rx_poll;
-			uap->dmarx.timer.data = (unsigned long)uap;
+			timer_setup(&uap->dmarx.timer, pl011_dma_rx_poll, 0);
 			mod_timer(&uap->dmarx.timer,
 				jiffies +
 				msecs_to_jiffies(uap->dmarx.poll_rate));
@@ -1588,7 +1572,7 @@ static void pl011_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	TIOCMBIT(TIOCM_OUT2, UART011_CR_OUT2);
 	TIOCMBIT(TIOCM_LOOP, UART011_CR_LBE);
 
-	if (uap->autorts) {
+	if (port->status & UPSTAT_AUTORTS) {
 		/* We need to disable auto-RTS if we want to turn RTS off */
 		TIOCMBIT(TIOCM_RTS, UART011_CR_RTSEN);
 	}
@@ -1842,7 +1826,7 @@ static void pl011_disable_uart(struct uart_amba_port *uap)
 {
 	unsigned int cr;
 
-	uap->autorts = false;
+	uap->port.status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS);
 	spin_lock_irq(&uap->port.lock);
 	cr = pl011_read(uap, REG_CR);
 	uap->old_cr = cr;
@@ -2028,10 +2012,10 @@ pl011_set_termios(struct uart_port *port, struct ktermios *termios,
 			old_cr |= UART011_CR_RTSEN;
 
 		old_cr |= UART011_CR_CTSEN;
-		uap->autorts = true;
+		port->status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS;
 	} else {
 		old_cr &= ~(UART011_CR_CTSEN | UART011_CR_RTSEN);
-		uap->autorts = false;
+		port->status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS);
 	}
 
 	if (uap->vendor->oversampling) {
diff --git a/drivers/tty/serial/amba-pl011.h b/drivers/tty/serial/amba-pl011.h
index 411c60e1f9a4..077eb12a3472 100644
--- a/drivers/tty/serial/amba-pl011.h
+++ b/drivers/tty/serial/amba-pl011.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AMBA_PL011_H
 #define AMBA_PL011_H
 
diff --git a/drivers/tty/serial/apbuart.c b/drivers/tty/serial/apbuart.c
index dd60ed96a0ad..60cd133ffbbc 100644
--- a/drivers/tty/serial/apbuart.c
+++ b/drivers/tty/serial/apbuart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Driver for GRLIB serial ports (APBUART)
  *
diff --git a/drivers/tty/serial/apbuart.h b/drivers/tty/serial/apbuart.h
index 5faf87c8d2bc..81baf007694f 100644
--- a/drivers/tty/serial/apbuart.h
+++ b/drivers/tty/serial/apbuart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GRLIB_APBUART_H__
 #define __GRLIB_APBUART_H__
 
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c
index decc7f3c1ab2..db5df3d54818 100644
--- a/drivers/tty/serial/ar933x_uart.c
+++ b/drivers/tty/serial/ar933x_uart.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Atheros AR933X SoC built-in UART driver
  *
  *  Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
  *
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c
index 77fe306690c4..2599f9ecccfe 100644
--- a/drivers/tty/serial/arc_uart.c
+++ b/drivers/tty/serial/arc_uart.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ARC On-Chip(fpga) UART Driver
  *
  * Copyright (C) 2010-2012 Synopsys, Inc. (www.synopsys.com)
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * vineetg: July 10th 2012
  *  -Decoupled the driver from arch/arc
  *    +Using platform_get_resource() for irq/membase (thx to bfin_uart.c)
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 7551cab438ff..efa25611ca0c 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for Atmel AT91 Serial ports
  *  Copyright (C) 2003 Rick Bronson
@@ -6,21 +7,6 @@
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *
  *  DMA support added by Chip Coldwell.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  */
 #include <linux/tty.h>
 #include <linux/ioport.h>
@@ -171,6 +157,7 @@ struct atmel_uart_port {
 	bool			has_hw_timer;
 	struct timer_list	uart_timer;
 
+	bool			tx_stopped;
 	bool			suspended;
 	unsigned int		pending;
 	unsigned int		pending_status;
@@ -380,6 +367,10 @@ static int atmel_config_rs485(struct uart_port *port,
  */
 static u_int atmel_tx_empty(struct uart_port *port)
 {
+	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
+
+	if (atmel_port->tx_stopped)
+		return TIOCSER_TEMT;
 	return (atmel_uart_readl(port, ATMEL_US_CSR) & ATMEL_US_TXEMPTY) ?
 		TIOCSER_TEMT :
 		0;
@@ -485,6 +476,7 @@ static void atmel_stop_tx(struct uart_port *port)
 	 * is fully transmitted.
 	 */
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS);
+	atmel_port->tx_stopped = true;
 
 	/* Disable interrupts */
 	atmel_uart_writel(port, ATMEL_US_IDR, atmel_port->tx_done_mask);
@@ -521,6 +513,7 @@ static void atmel_start_tx(struct uart_port *port)
 
 	/* re-enable the transmitter */
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
+	atmel_port->tx_stopped = false;
 }
 
 /*
@@ -1178,10 +1171,11 @@ chan_err:
 	return -EINVAL;
 }
 
-static void atmel_uart_timer_callback(unsigned long data)
+static void atmel_uart_timer_callback(struct timer_list *t)
 {
-	struct uart_port *port = (void *)data;
-	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
+	struct atmel_uart_port *atmel_port = from_timer(atmel_port, t,
+							uart_timer);
+	struct uart_port *port = &atmel_port->uart;
 
 	if (!atomic_read(&atmel_port->tasklet_shutdown)) {
 		tasklet_schedule(&atmel_port->tasklet_rx);
@@ -1667,29 +1661,6 @@ static void atmel_init_property(struct atmel_uart_port *atmel_port,
 	}
 }
 
-static void atmel_init_rs485(struct uart_port *port,
-				struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-
-	struct serial_rs485 *rs485conf = &port->rs485;
-	u32 rs485_delay[2];
-
-	/* rs485 properties */
-	if (of_property_read_u32_array(np, "rs485-rts-delay",
-				       rs485_delay, 2) == 0) {
-		rs485conf->delay_rts_before_send = rs485_delay[0];
-		rs485conf->delay_rts_after_send = rs485_delay[1];
-		rs485conf->flags = 0;
-	}
-
-	if (of_get_property(np, "rs485-rx-during-tx", NULL))
-		rs485conf->flags |= SER_RS485_RX_DURING_TX;
-
-	if (of_get_property(np, "linux,rs485-enabled-at-boot-time", NULL))
-		rs485conf->flags |= SER_RS485_ENABLED;
-}
-
 static void atmel_set_ops(struct uart_port *port)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
@@ -1866,10 +1837,9 @@ static int atmel_startup(struct uart_port *port)
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
 	/* enable xmit & rcvr */
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
+	atmel_port->tx_stopped = false;
 
-	setup_timer(&atmel_port->uart_timer,
-			atmel_uart_timer_callback,
-			(unsigned long)port);
+	timer_setup(&atmel_port->uart_timer, atmel_uart_timer_callback, 0);
 
 	if (atmel_use_pdc_rx(port)) {
 		/* set UART timeout */
@@ -2122,6 +2092,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	/* disable receiver and transmitter */
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXDIS | ATMEL_US_RXDIS);
+	atmel_port->tx_stopped = true;
 
 	/* mode */
 	if (port->rs485.flags & SER_RS485_ENABLED) {
@@ -2207,6 +2178,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
 	atmel_uart_writel(port, ATMEL_US_BRGR, quot);
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
+	atmel_port->tx_stopped = false;
 
 	/* restore interrupts */
 	atmel_uart_writel(port, ATMEL_US_IER, imr);
@@ -2373,7 +2345,7 @@ static int atmel_init_port(struct atmel_uart_port *atmel_port,
 	atmel_init_property(atmel_port, pdev);
 	atmel_set_ops(port);
 
-	atmel_init_rs485(port, pdev);
+	of_get_rs485_mode(pdev->dev.of_node, &port->rs485);
 
 	port->iotype		= UPIO_MEM;
 	port->flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP;
@@ -2450,6 +2422,7 @@ static void atmel_console_write(struct console *co, const char *s, u_int count)
 
 	/* Make sure that tx path is actually able to send characters */
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN);
+	atmel_port->tx_stopped = false;
 
 	uart_console_write(port, s, count, atmel_console_putchar);
 
@@ -2511,6 +2484,7 @@ static int __init atmel_console_setup(struct console *co, char *options)
 {
 	int ret;
 	struct uart_port *port = &atmel_ports[co->index].uart;
+	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	int baud = 115200;
 	int bits = 8;
 	int parity = 'n';
@@ -2528,6 +2502,7 @@ static int __init atmel_console_setup(struct console *co, char *options)
 	atmel_uart_writel(port, ATMEL_US_IDR, -1);
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_RSTSTA | ATMEL_US_RSTRX);
 	atmel_uart_writel(port, ATMEL_US_CR, ATMEL_US_TXEN | ATMEL_US_RXEN);
+	atmel_port->tx_stopped = false;
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
diff --git a/drivers/tty/serial/atmel_serial.h b/drivers/tty/serial/atmel_serial.h
index bd2560502f3c..ba3a2437cde4 100644
--- a/drivers/tty/serial/atmel_serial.h
+++ b/drivers/tty/serial/atmel_serial.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * include/linux/atmel_serial.h
  *
@@ -6,11 +7,6 @@
  *
  * USART registers.
  * Based on AT91RM9200 datasheet revision E.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef ATMEL_SERIAL_H
diff --git a/drivers/tty/serial/bcm63xx_uart.c b/drivers/tty/serial/bcm63xx_uart.c
index 583c9a0c7ecc..9d1b7bf7378c 100644
--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
  * Derived from many drivers using generic_serial interface.
  *
  * Copyright (C) 2008 Maxime Bizon <mbizon@freebox.fr>
@@ -507,9 +504,14 @@ static void bcm_uart_set_termios(struct uart_port *port,
 {
 	unsigned int ctl, baud, quot, ier;
 	unsigned long flags;
+	int tries;
 
 	spin_lock_irqsave(&port->lock, flags);
 
+	/* Drain the hot tub fully before we power it off for the winter. */
+	for (tries = 3; !bcm_uart_tx_empty(port) && tries; tries--)
+		mdelay(10);
+
 	/* disable uart while changing speed */
 	bcm_uart_disable(port);
 	bcm_uart_flush(port);
diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index 6b03fb12cd19..4ccca5d22f4f 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Blackfin On-Chip Sport Emulated UART Driver
  *
  * Copyright 2006-2009 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 /*
@@ -584,7 +583,7 @@ static void sport_set_termios(struct uart_port *port,
 	spin_unlock_irqrestore(&up->port.lock, flags);
 }
 
-struct uart_ops sport_uart_ops = {
+static const struct uart_ops sport_uart_ops = {
 	.tx_empty	= sport_tx_empty,
 	.set_mctrl	= sport_set_mctrl,
 	.get_mctrl	= sport_get_mctrl,
diff --git a/drivers/tty/serial/bfin_sport_uart.h b/drivers/tty/serial/bfin_sport_uart.h
index e4510ea135ce..4b12f45d6580 100644
--- a/drivers/tty/serial/bfin_sport_uart.h
+++ b/drivers/tty/serial/bfin_sport_uart.h
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Blackfin On-Chip Sport Emulated UART Driver
  *
  * Copyright 2006-2008 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 /*
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 293ecbb00684..4755fa696321 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Blackfin On-Chip Serial Driver
  *
  * Copyright 2006-2011 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -456,8 +455,9 @@ static void bfin_serial_dma_rx_chars(struct bfin_serial_port *uart)
 	tty_flip_buffer_push(&uart->port.state->port);
 }
 
-void bfin_serial_rx_dma_timeout(struct bfin_serial_port *uart)
+void bfin_serial_rx_dma_timeout(struct timer_list *t)
 {
+	struct bfin_serial_port *uart = from_timer(uart, t, rx_dma_timer);
 	int x_pos, pos;
 	unsigned long flags;
 
@@ -624,8 +624,6 @@ static int bfin_serial_startup(struct uart_port *port)
 	set_dma_start_addr(uart->rx_dma_channel, (unsigned long)uart->rx_dma_buf.buf);
 	enable_dma(uart->rx_dma_channel);
 
-	uart->rx_dma_timer.data = (unsigned long)(uart);
-	uart->rx_dma_timer.function = (void *)bfin_serial_rx_dma_timeout;
 	uart->rx_dma_timer.expires = jiffies + DMA_RX_FLUSH_JIFFIES;
 	add_timer(&(uart->rx_dma_timer));
 #else
@@ -1316,7 +1314,7 @@ static int bfin_serial_probe(struct platform_device *pdev)
 		}
 		uart->rx_dma_channel = res->start;
 
-		init_timer(&(uart->rx_dma_timer));
+		timer_setup(&uart->rx_dma_timer, bfin_serial_rx_dma_timeout, 0);
 #endif
 
 #if defined(SERIAL_BFIN_CTSRTS) || \
diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index ac1328629baa..98f193a83392 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for CLPS711x serial ports
  *
@@ -5,11 +6,6 @@
  *
  *  Copyright 1999 ARM Limited
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #if defined(CONFIG_SERIAL_CLPS711X_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart.h b/drivers/tty/serial/cpm_uart/cpm_uart.h
index 0ad027b95873..9f175a92fb5d 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart.h
+++ b/drivers/tty/serial/cpm_uart/cpm_uart.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Driver for CPM (SCC/SMC) serial ports
  *
@@ -5,11 +6,6 @@
  *
  *  2006 (c) MontaVista Software, Inc.
  *	Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- *
  */
 #ifndef CPM_UART_H
 #define CPM_UART_H
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 9ac142cfc1f1..24a5f05e769b 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for CPM (SCC/SMC) serial ports; core driver
  *
@@ -12,21 +13,6 @@
  *            (C) 2004 Intracom, S.A.
  *            (C) 2005-2006 MontaVista Software, Inc.
  *		Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
index 6d3b22e93246..4eba17f3d293 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for CPM (SCC/SMC) serial ports; CPM1 definitions
  *
@@ -8,21 +9,6 @@
  *            (C) 2004 Intracom, S.A.
  *            (C) 2006 MontaVista Software, Inc.
  *		Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.h b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.h
index 60c7e94cde1e..18ec0849918a 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.h
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Driver for CPM (SCC/SMC) serial ports
  *
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
index f46d2ca87209..e3bff068dc3c 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for CPM (SCC/SMC) serial ports; CPM2 definitions
  *
@@ -8,21 +9,6 @@
  *            (C) 2004 Intracom, S.A.
  *            (C) 2006 MontaVista Software, Inc.
  *		Vitaly Bordug <vbordug@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.h b/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.h
index 51e651a69938..051a8509c3e5 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.h
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Driver for CPM (SCC/SMC) serial ports
  *
diff --git a/drivers/tty/serial/crisv10.c b/drivers/tty/serial/crisv10.c
index 59a2a7e18b5a..1421804975e0 100644
--- a/drivers/tty/serial/crisv10.c
+++ b/drivers/tty/serial/crisv10.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Serial port driver for the ETRAX 100LX chip
  *
diff --git a/drivers/tty/serial/crisv10.h b/drivers/tty/serial/crisv10.h
index 15a52ee58251..79ba2bc95d3d 100644
--- a/drivers/tty/serial/crisv10.h
+++ b/drivers/tty/serial/crisv10.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * serial.h: Arch-dep definitions for the Etrax100 serial driver.
  *
diff --git a/drivers/tty/serial/digicolor-usart.c b/drivers/tty/serial/digicolor-usart.c
index 02ad6953b167..f460cca139e2 100644
--- a/drivers/tty/serial/digicolor-usart.c
+++ b/drivers/tty/serial/digicolor-usart.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for Conexant Digicolor serial ports (USART)
  *
  * Author: Baruch Siach <baruch@tkos.co.il>
  *
  * Copyright (C) 2014 Paradox Innovation Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/dz.c b/drivers/tty/serial/dz.c
index ff465ff43577..7b57e840e255 100644
--- a/drivers/tty/serial/dz.c
+++ b/drivers/tty/serial/dz.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dz.c: Serial port driver for DECstations equipped
  *       with the DZ chipset.
diff --git a/drivers/tty/serial/dz.h b/drivers/tty/serial/dz.h
index faf169ed27b3..3b3e31954f24 100644
--- a/drivers/tty/serial/dz.h
+++ b/drivers/tty/serial/dz.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dz.h: Serial port driver for DECstations equipped
  *       with the DZ chipset.
diff --git a/drivers/tty/serial/earlycon-arm-semihost.c b/drivers/tty/serial/earlycon-arm-semihost.c
index 6bbeb699777c..fa096c10b591 100644
--- a/drivers/tty/serial/earlycon-arm-semihost.c
+++ b/drivers/tty/serial/earlycon-arm-semihost.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2012 ARM Ltd.
  * Author: Marc Zyngier <marc.zyngier@arm.com>
@@ -5,18 +6,6 @@
  * Adapted for ARM and earlycon:
  * Copyright (C) 2014 Linaro Ltd.
  * Author: Rob Herring <robh@kernel.org>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/console.h>
diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
index 98928f082d87..4c8b80f1c688 100644
--- a/drivers/tty/serial/earlycon.c
+++ b/drivers/tty/serial/earlycon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Linaro Ltd.
  * Author: Rob Herring <robh@kernel.org>
@@ -5,10 +6,6 @@
  * Based on 8250 earlycon:
  * (c) Copyright 2004 Hewlett-Packard Development Company, L.P.
  *	Bjorn Helgaas <bjorn.helgaas@hp.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
diff --git a/drivers/tty/serial/efm32-uart.c b/drivers/tty/serial/efm32-uart.c
index 9fff25be87f9..d6b5e5463746 100644
--- a/drivers/tty/serial/efm32-uart.c
+++ b/drivers/tty/serial/efm32-uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #if defined(CONFIG_SERIAL_EFM32_UART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
 #define SUPPORT_SYSRQ
 #endif
diff --git a/drivers/tty/serial/etraxfs-uart.c b/drivers/tty/serial/etraxfs-uart.c
index 2f80bc7e44fb..24bf6bfb29b4 100644
--- a/drivers/tty/serial/etraxfs-uart.c
+++ b/drivers/tty/serial/etraxfs-uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/console.h>
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 849c1f9991ce..c84e6f0db54e 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Freescale lpuart serial port driver
  *
  *  Copyright 2012-2014 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #if defined(CONFIG_SERIAL_FSL_LPUART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -1276,7 +1272,6 @@ static void rx_dma_timer_init(struct lpuart_port *sport)
 static int lpuart_startup(struct uart_port *port)
 {
 	struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
-	int ret;
 	unsigned long flags;
 	unsigned char temp;
 
@@ -1291,11 +1286,6 @@ static int lpuart_startup(struct uart_port *port)
 	sport->rxfifo_size = 0x1 << (((temp >> UARTPFIFO_RXSIZE_OFF) &
 		UARTPFIFO_FIFOSIZE_MASK) + 1);
 
-	ret = devm_request_irq(port->dev, port->irq, lpuart_int, 0,
-				DRIVER_NAME, sport);
-	if (ret)
-		return ret;
-
 	spin_lock_irqsave(&sport->port.lock, flags);
 
 	lpuart_setup_watermark(sport);
@@ -1333,7 +1323,6 @@ static int lpuart_startup(struct uart_port *port)
 static int lpuart32_startup(struct uart_port *port)
 {
 	struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
-	int ret;
 	unsigned long flags;
 	unsigned long temp;
 
@@ -1346,11 +1335,6 @@ static int lpuart32_startup(struct uart_port *port)
 	sport->rxfifo_size = 0x1 << (((temp >> UARTFIFO_RXSIZE_OFF) &
 		UARTFIFO_FIFOSIZE_MASK) - 1);
 
-	ret = devm_request_irq(port->dev, port->irq, lpuart32_int, 0,
-				DRIVER_NAME, sport);
-	if (ret)
-		return ret;
-
 	spin_lock_irqsave(&sport->port.lock, flags);
 
 	lpuart32_setup_watermark(sport);
@@ -1380,8 +1364,6 @@ static void lpuart_shutdown(struct uart_port *port)
 
 	spin_unlock_irqrestore(&port->lock, flags);
 
-	devm_free_irq(port->dev, port->irq, sport);
-
 	if (sport->lpuart_dma_rx_use) {
 		del_timer_sync(&sport->lpuart_timer);
 		lpuart_dma_rx_free(&sport->port);
@@ -1400,7 +1382,6 @@ static void lpuart_shutdown(struct uart_port *port)
 
 static void lpuart32_shutdown(struct uart_port *port)
 {
-	struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
 	unsigned long temp;
 	unsigned long flags;
 
@@ -1413,8 +1394,6 @@ static void lpuart32_shutdown(struct uart_port *port)
 	lpuart32_write(port, temp, UARTCTRL);
 
 	spin_unlock_irqrestore(&port->lock, flags);
-
-	devm_free_irq(port->dev, port->irq, sport);
 }
 
 static void
@@ -1649,12 +1628,11 @@ lpuart32_set_termios(struct uart_port *port, struct ktermios *termios,
 {
 	struct lpuart_port *sport = container_of(port, struct lpuart_port, port);
 	unsigned long flags;
-	unsigned long ctrl, old_ctrl, bd, modem;
+	unsigned long ctrl, old_ctrl, modem;
 	unsigned int  baud;
 	unsigned int old_csize = old ? old->c_cflag & CSIZE : CS8;
 
 	ctrl = old_ctrl = lpuart32_read(&sport->port, UARTCTRL);
-	bd = lpuart32_read(&sport->port, UARTBAUD);
 	modem = lpuart32_read(&sport->port, UARTMODIR);
 	/*
 	 * only support CS8 and CS7, and for CS7 must enable PE.
@@ -2212,15 +2190,39 @@ static int lpuart_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, &sport->port);
 
-	if (lpuart_is_32(sport))
+	if (lpuart_is_32(sport)) {
 		lpuart_reg.cons = LPUART32_CONSOLE;
-	else
+		ret = devm_request_irq(&pdev->dev, sport->port.irq, lpuart32_int, 0,
+					DRIVER_NAME, sport);
+	} else {
 		lpuart_reg.cons = LPUART_CONSOLE;
+		ret = devm_request_irq(&pdev->dev, sport->port.irq, lpuart_int, 0,
+					DRIVER_NAME, sport);
+	}
+
+	if (ret)
+		goto failed_irq_request;
 
 	ret = uart_add_one_port(&lpuart_reg, &sport->port);
-	if (ret) {
-		clk_disable_unprepare(sport->clk);
-		return ret;
+	if (ret)
+		goto failed_attach_port;
+
+	of_get_rs485_mode(np, &sport->port.rs485);
+
+	if (sport->port.rs485.flags & SER_RS485_RX_DURING_TX) {
+		dev_err(&pdev->dev, "driver doesn't support RX during TX\n");
+		return -ENOSYS;
+	}
+
+	if (sport->port.rs485.delay_rts_before_send ||
+	    sport->port.rs485.delay_rts_after_send) {
+		dev_err(&pdev->dev, "driver doesn't support RTS delays\n");
+		return -ENOSYS;
+	}
+
+	if (sport->port.rs485.flags & SER_RS485_ENABLED) {
+		sport->port.rs485.flags |= SER_RS485_RTS_ON_SEND;
+		writeb(UARTMODEM_TXRTSE, sport->port.membase + UARTMODEM);
 	}
 
 	sport->dma_tx_chan = dma_request_slave_channel(sport->port.dev, "tx");
@@ -2233,13 +2235,12 @@ static int lpuart_probe(struct platform_device *pdev)
 		dev_info(sport->port.dev, "DMA rx channel request failed, "
 				"operating without rx DMA\n");
 
-	if (of_property_read_bool(np, "linux,rs485-enabled-at-boot-time")) {
-		sport->port.rs485.flags |= SER_RS485_ENABLED;
-		sport->port.rs485.flags |= SER_RS485_RTS_ON_SEND;
-		writeb(UARTMODEM_TXRTSE, sport->port.membase + UARTMODEM);
-	}
-
 	return 0;
+
+failed_attach_port:
+failed_irq_request:
+	clk_disable_unprepare(sport->clk);
+	return ret;
 }
 
 static int lpuart_remove(struct platform_device *pdev)
diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index fe92d74f4ea5..ad374f7c476d 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
   * icom.c
   *
@@ -6,21 +7,6 @@
   * Serial device driver.
   *
   * Based on code from serial.c
-  *
-  * This program is free software; you can redistribute it and/or modify
-  * it under the terms of the GNU General Public License as published by
-  * the Free Software Foundation; either version 2 of the License, or
-  * (at your option) any later version.
-  *
-  * This program is distributed in the hope that it will be useful,
-  * but WITHOUT ANY WARRANTY; without even the implied warranty of
-  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  * GNU General Public License for more details.
-  *
-  * You should have received a copy of the GNU General Public License
-  * along with this program; if not, write to the Free Software
-  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
-  *
   */
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/drivers/tty/serial/icom.h b/drivers/tty/serial/icom.h
index c8029e0025c9..8a77e739b333 100644
--- a/drivers/tty/serial/icom.h
+++ b/drivers/tty/serial/icom.h
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * icom.h
  *
  * Copyright (C) 2001 Michael Anderson, IBM Corporation
  *
  * Serial device driver include file.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
 #include <linux/serial_core.h>
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index f190a84a0246..473f4f81d690 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /****************************************************************************
  *
  * Driver for the IFX 6x60 spi modem.
@@ -10,20 +11,6 @@
  * Copyright (C) 2009, 2010 Intel Corp
  * Russ Gorby <russ.gorby@intel.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
- * USA
- *
  * Driver modified by Intel from Option gtm501l_spi.c
  *
  * Notes
@@ -1029,9 +1016,8 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
 	spin_lock_init(&ifx_dev->write_lock);
 	spin_lock_init(&ifx_dev->power_lock);
 	ifx_dev->power_status = 0;
-	init_timer(&ifx_dev->spi_timer);
-	ifx_dev->spi_timer.function = ifx_spi_timeout;
-	ifx_dev->spi_timer.data = (unsigned long)ifx_dev;
+	setup_timer(&ifx_dev->spi_timer, ifx_spi_timeout,
+		    (unsigned long)ifx_dev);
 	ifx_dev->modem = pl_data->modem_type;
 	ifx_dev->use_dma = pl_data->use_dma;
 	ifx_dev->max_hz = pl_data->max_hz;
diff --git a/drivers/tty/serial/ifx6x60.h b/drivers/tty/serial/ifx6x60.h
index 4fbddc297839..c5a2514212ff 100644
--- a/drivers/tty/serial/ifx6x60.h
+++ b/drivers/tty/serial/ifx6x60.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /****************************************************************************
  *
  * Driver for the IFX spi modem.
@@ -5,23 +6,6 @@
  * Copyright (C) 2009, 2010 Intel Corp
  * Jim Stanley <jim.stanley@intel.com>
  *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
- * USA
- *
- *
- *
  *****************************************************************************/
 #ifndef _IFX6X60_H
 #define _IFX6X60_H
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index dfeff3951f93..a67a606c38eb 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Motorola/Freescale IMX serial ports
  *
@@ -5,16 +6,6 @@
  *
  * Author: Sascha Hauer <sascha@saschahauer.de>
  * Copyright (C) 2004 Pengutronix
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #if defined(CONFIG_SERIAL_IMX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -334,7 +325,8 @@ static void imx_port_rts_active(struct imx_port *sport, unsigned long *ucr2)
 {
 	*ucr2 &= ~(UCR2_CTSC | UCR2_CTS);
 
-	mctrl_gpio_set(sport->gpios, sport->port.mctrl | TIOCM_RTS);
+	sport->port.mctrl |= TIOCM_RTS;
+	mctrl_gpio_set(sport->gpios, sport->port.mctrl);
 }
 
 static void imx_port_rts_inactive(struct imx_port *sport, unsigned long *ucr2)
@@ -342,7 +334,8 @@ static void imx_port_rts_inactive(struct imx_port *sport, unsigned long *ucr2)
 	*ucr2 &= ~UCR2_CTSC;
 	*ucr2 |= UCR2_CTS;
 
-	mctrl_gpio_set(sport->gpios, sport->port.mctrl & ~TIOCM_RTS);
+	sport->port.mctrl &= ~TIOCM_RTS;
+	mctrl_gpio_set(sport->gpios, sport->port.mctrl);
 }
 
 static void imx_port_rts_auto(struct imx_port *sport, unsigned long *ucr2)
@@ -714,8 +707,6 @@ static void imx_disable_rx_int(struct imx_port *sport)
 {
 	unsigned long temp;
 
-	sport->dma_is_rxing = 1;
-
 	/* disable the receiver ready and aging timer interrupts */
 	temp = readl(sport->port.membase + UCR1);
 	temp &= ~(UCR1_RRDYEN);
@@ -732,29 +723,6 @@ static void imx_disable_rx_int(struct imx_port *sport)
 }
 
 static void clear_rx_errors(struct imx_port *sport);
-static int start_rx_dma(struct imx_port *sport);
-/*
- * If the RXFIFO is filled with some data, and then we
- * arise a DMA operation to receive them.
- */
-static void imx_dma_rxint(struct imx_port *sport)
-{
-	unsigned long temp;
-	unsigned long flags;
-
-	spin_lock_irqsave(&sport->port.lock, flags);
-
-	temp = readl(sport->port.membase + USR2);
-	if ((temp & USR2_RDR) && !sport->dma_is_rxing) {
-
-		imx_disable_rx_int(sport);
-
-		/* tell the DMA to receive the data. */
-		start_rx_dma(sport);
-	}
-
-	spin_unlock_irqrestore(&sport->port.lock, flags);
-}
 
 /*
  * We have a modem side uart, so the meanings of RTS and CTS are inverted.
@@ -816,11 +784,8 @@ static irqreturn_t imx_int(int irq, void *dev_id)
 	sts = readl(sport->port.membase + USR1);
 	sts2 = readl(sport->port.membase + USR2);
 
-	if (sts & (USR1_RRDY | USR1_AGTIM)) {
-		if (sport->dma_is_enabled)
-			imx_dma_rxint(sport);
-		else
-			imx_rxint(irq, dev_id);
+	if (!sport->dma_is_enabled && (sts & (USR1_RRDY | USR1_AGTIM))) {
+		imx_rxint(irq, dev_id);
 		ret = IRQ_HANDLED;
 	}
 
@@ -1074,6 +1039,7 @@ static int start_rx_dma(struct imx_port *sport)
 	desc->callback_param = sport;
 
 	dev_dbg(dev, "RX: prepare for the DMA.\n");
+	sport->dma_is_rxing = 1;
 	sport->rx_cookie = dmaengine_submit(desc);
 	dma_async_issue_pending(chan);
 	return 0;
@@ -1165,7 +1131,7 @@ static int imx_uart_dma_init(struct imx_port *sport)
 		goto err;
 	}
 
-	sport->rx_buf = kzalloc(PAGE_SIZE, GFP_KERNEL);
+	sport->rx_buf = kzalloc(RX_BUF_SIZE, GFP_KERNEL);
 	if (!sport->rx_buf) {
 		ret = -ENOMEM;
 		goto err;
@@ -1207,10 +1173,6 @@ static void imx_enable_dma(struct imx_port *sport)
 	temp |= UCR1_RDMAEN | UCR1_TDMAEN | UCR1_ATDMAEN;
 	writel(temp, sport->port.membase + UCR1);
 
-	temp = readl(sport->port.membase + UCR2);
-	temp |= UCR2_ATEN;
-	writel(temp, sport->port.membase + UCR2);
-
 	imx_setup_ufcr(sport, TXTL_DMA, RXTL_DMA);
 
 	sport->dma_is_enabled = 1;
@@ -1411,15 +1373,19 @@ static void imx_flush_buffer(struct uart_port *port)
 		temp = readl(sport->port.membase + UCR1);
 		temp &= ~UCR1_TDMAEN;
 		writel(temp, sport->port.membase + UCR1);
-		sport->dma_is_txing = false;
+		sport->dma_is_txing = 0;
 	}
 
 	/*
 	 * According to the Reference Manual description of the UART SRST bit:
+	 *
 	 * "Reset the transmit and receive state machines,
 	 * all FIFOs and register USR1, USR2, UBIR, UBMR, UBRC, URXD, UTXD
-	 * and UTS[6-3]". As we don't need to restore the old values from
-	 * USR1, USR2, URXD, UTXD, only save/restore the other four registers
+	 * and UTS[6-3]".
+	 *
+	 * We don't need to restore the old values from USR1, USR2, URXD and
+	 * UTXD. UBRC is read only, so only save/restore the other three
+	 * registers.
 	 */
 	ubir = readl(sport->port.membase + UBIR);
 	ubmr = readl(sport->port.membase + UBMR);
@@ -2051,6 +2017,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 	if (of_get_property(np, "rts-gpios", NULL))
 		sport->have_rtsgpio = 1;
 
+	of_get_rs485_mode(np, &sport->port.rs485);
+
 	return 0;
 }
 #else
@@ -2112,12 +2080,9 @@ static int serial_imx_probe(struct platform_device *pdev)
 	sport->port.fifosize = 32;
 	sport->port.ops = &imx_pops;
 	sport->port.rs485_config = imx_rs485_config;
-	sport->port.rs485.flags =
-		SER_RS485_RTS_ON_SEND | SER_RS485_RX_DURING_TX;
+	sport->port.rs485.flags |= SER_RS485_RTS_ON_SEND;
 	sport->port.flags = UPF_BOOT_AUTOCONF;
-	init_timer(&sport->timer);
-	sport->timer.function = imx_timeout;
-	sport->timer.data     = (unsigned long)sport;
+	setup_timer(&sport->timer, imx_timeout, (unsigned long)sport);
 
 	sport->gpios = mctrl_gpio_init(&sport->port, 0);
 	if (IS_ERR(sport->gpios))
@@ -2346,11 +2311,39 @@ static int imx_serial_port_resume(struct device *dev)
 	return 0;
 }
 
+static int imx_serial_port_freeze(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct imx_port *sport = platform_get_drvdata(pdev);
+
+	uart_suspend_port(&imx_reg, &sport->port);
+
+	/* Needed to enable clock in suspend_noirq */
+	return clk_prepare(sport->clk_ipg);
+}
+
+static int imx_serial_port_thaw(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct imx_port *sport = platform_get_drvdata(pdev);
+
+	uart_resume_port(&imx_reg, &sport->port);
+
+	clk_unprepare(sport->clk_ipg);
+
+	return 0;
+}
+
 static const struct dev_pm_ops imx_serial_port_pm_ops = {
 	.suspend_noirq = imx_serial_port_suspend_noirq,
 	.resume_noirq = imx_serial_port_resume_noirq,
+	.freeze_noirq = imx_serial_port_suspend_noirq,
+	.restore_noirq = imx_serial_port_resume_noirq,
 	.suspend = imx_serial_port_suspend,
 	.resume = imx_serial_port_resume,
+	.freeze = imx_serial_port_freeze,
+	.thaw = imx_serial_port_thaw,
+	.restore = imx_serial_port_thaw,
 };
 
 static struct platform_driver serial_imx_driver = {
diff --git a/drivers/tty/serial/ioc3_serial.c b/drivers/tty/serial/ioc3_serial.c
index 906ee770ff4a..d8a1cdd6a53d 100644
--- a/drivers/tty/serial/ioc3_serial.c
+++ b/drivers/tty/serial/ioc3_serial.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
  * Copyright (C) 2005 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
diff --git a/drivers/tty/serial/ioc4_serial.c b/drivers/tty/serial/ioc4_serial.c
index 43d7d32eb150..db5b979e5a0c 100644
--- a/drivers/tty/serial/ioc4_serial.c
+++ b/drivers/tty/serial/ioc4_serial.c
@@ -1,8 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
  * Copyright (C) 2003-2006 Silicon Graphics, Inc.  All Rights Reserved.
  */
 
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index 7ddddb4c3844..8c810733df3d 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for Zilog serial chips found on SGI workstations and
  * servers.  This driver could actually be made more generic.
diff --git a/drivers/tty/serial/ip22zilog.h b/drivers/tty/serial/ip22zilog.h
index a59a9a8341d2..b52801fe2d0d 100644
--- a/drivers/tty/serial/ip22zilog.h
+++ b/drivers/tty/serial/ip22zilog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IP22_ZILOG_H
 #define _IP22_ZILOG_H
 
diff --git a/drivers/tty/serial/jsm/jsm.h b/drivers/tty/serial/jsm/jsm.h
index 0b79b87df47d..7a128aaa3a66 100644
--- a/drivers/tty/serial/jsm/jsm.h
+++ b/drivers/tty/serial/jsm/jsm.h
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  * Copyright 2003 Digi International (www.digi.com)
  *
  * Copyright (C) 2004 IBM Corporation. All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
  * Contact Information:
  * Scott H Kilau <Scott_Kilau@digi.com>
  * Wendy Xiong   <wendyx@us.ibm.com>
diff --git a/drivers/tty/serial/jsm/jsm_cls.c b/drivers/tty/serial/jsm/jsm_cls.c
index 4eb12a9cae76..c061a7b7bd23 100644
--- a/drivers/tty/serial/jsm/jsm_cls.c
+++ b/drivers/tty/serial/jsm/jsm_cls.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2003 Digi International (www.digi.com)
  *	Scott H Kilau <Scott_Kilau at digi dot com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
  *	NOTE TO LINUX KERNEL HACKERS:  DO NOT REFORMAT THIS CODE!
  *
  *	This is shared code between Digi's CVS archive and the
diff --git a/drivers/tty/serial/jsm/jsm_driver.c b/drivers/tty/serial/jsm/jsm_driver.c
index 102d499814ac..592e51d8944e 100644
--- a/drivers/tty/serial/jsm/jsm_driver.c
+++ b/drivers/tty/serial/jsm/jsm_driver.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  * Copyright 2003 Digi International (www.digi.com)
  *
  * Copyright (C) 2004 IBM Corporation. All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
  * Contact Information:
  * Scott H Kilau <Scott_Kilau@digi.com>
  * Wendy Xiong   <wendyx@us.ibm.com>
diff --git a/drivers/tty/serial/jsm/jsm_neo.c b/drivers/tty/serial/jsm/jsm_neo.c
index c6fdd6369534..4718560b8fdc 100644
--- a/drivers/tty/serial/jsm/jsm_neo.c
+++ b/drivers/tty/serial/jsm/jsm_neo.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  * Copyright 2003 Digi International (www.digi.com)
  *
  * Copyright (C) 2004 IBM Corporation. All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
  * Contact Information:
  * Scott H Kilau <Scott_Kilau@digi.com>
  * Wendy Xiong   <wendyx@us.ibm.com>
diff --git a/drivers/tty/serial/jsm/jsm_tty.c b/drivers/tty/serial/jsm/jsm_tty.c
index ec7d8383900f..469927d37b41 100644
--- a/drivers/tty/serial/jsm/jsm_tty.c
+++ b/drivers/tty/serial/jsm/jsm_tty.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  * Copyright 2003 Digi International (www.digi.com)
  *
  * Copyright (C) 2004 IBM Corporation. All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY, EXPRESS OR IMPLIED; without even the
- * implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
- * PURPOSE.  See the GNU General Public License for more details.
- *
  * Contact Information:
  * Scott H Kilau <Scott_Kilau@digi.com>
  * Ananda Venkatarman <mansarov@us.ibm.com>
@@ -36,7 +27,7 @@ static void jsm_carrier(struct jsm_channel *ch);
 static inline int jsm_get_mstat(struct jsm_channel *ch)
 {
 	unsigned char mstat;
-	unsigned result;
+	int result;
 
 	jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, "start\n");
 
@@ -124,6 +115,7 @@ static void jsm_tty_set_mctrl(struct uart_port *port, unsigned int mctrl)
 static void jsm_tty_write(struct uart_port *port)
 {
 	struct jsm_channel *channel;
+
 	channel = container_of(port, struct jsm_channel, uart_port);
 	channel->ch_bd->bd_ops->copy_data_from_queue_to_uart(channel);
 }
@@ -275,14 +267,12 @@ static int jsm_tty_open(struct uart_port *port)
 static void jsm_tty_close(struct uart_port *port)
 {
 	struct jsm_board *bd;
-	struct ktermios *ts;
 	struct jsm_channel *channel =
 		container_of(port, struct jsm_channel, uart_port);
 
 	jsm_dbg(CLOSE, &channel->ch_bd->pci_dev, "start\n");
 
 	bd = channel->ch_bd;
-	ts = &port->state->port.tty->termios;
 
 	channel->ch_flags &= ~(CH_STOPI);
 
@@ -473,12 +463,11 @@ int jsm_uart_port_init(struct jsm_board *brd)
 		} else
 			set_bit(line, linemap);
 		brd->channels[i]->uart_port.line = line;
-		rc = uart_add_one_port (&jsm_uart_driver, &brd->channels[i]->uart_port);
-		if (rc){
+		rc = uart_add_one_port(&jsm_uart_driver, &brd->channels[i]->uart_port);
+		if (rc) {
 			printk(KERN_INFO "jsm: Port %d failed. Aborting...\n", i);
 			return rc;
-		}
-		else
+		} else
 			printk(KERN_INFO "jsm: Port %d added\n", i);
 	}
 
@@ -541,7 +530,7 @@ void jsm_input(struct jsm_channel *ch)
 	tp = port->tty;
 
 	bd = ch->ch_bd;
-	if(!bd)
+	if (!bd)
 		return;
 
 	spin_lock_irqsave(&ch->ch_lock, lock_flags);
@@ -781,7 +770,7 @@ void jsm_check_queue_flow_control(struct jsm_channel *ch)
 	if (qleft < 256) {
 		/* HWFLOW */
 		if (ch->ch_c_cflag & CRTSCTS) {
-			if(!(ch->ch_flags & CH_RECEIVER_OFF)) {
+			if (!(ch->ch_flags & CH_RECEIVER_OFF)) {
 				bd_ops->disable_receiver(ch);
 				ch->ch_flags |= (CH_RECEIVER_OFF);
 				jsm_dbg(READ, &ch->ch_bd->pci_dev,
diff --git a/drivers/tty/serial/kgdb_nmi.c b/drivers/tty/serial/kgdb_nmi.c
index 117df151627d..ed2b03058627 100644
--- a/drivers/tty/serial/kgdb_nmi.c
+++ b/drivers/tty/serial/kgdb_nmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * KGDB NMI serial console
  *
@@ -6,10 +7,6 @@
  *		  Colin Cross <ccross@android.com>
  * Copyright 2012 Linaro Ltd.
  *		  Anton Vorontsov <anton.vorontsov@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
index a260cde743e2..ddb46fa2d07f 100644
--- a/drivers/tty/serial/kgdboc.c
+++ b/drivers/tty/serial/kgdboc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Based on the same principle as kgdboe using the NETPOLL api, this
  * driver uses a console polling api to implement a gdb serial inteface
@@ -6,10 +7,6 @@
  * Maintainer: Jason Wessel <jason.wessel@windriver.com>
  *
  * 2007-2008 (c) Jason Wessel - Wind River Systems, Inc.
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 #include <linux/kernel.h>
 #include <linux/ctype.h>
diff --git a/drivers/tty/serial/lantiq.c b/drivers/tty/serial/lantiq.c
index 22df94f107e5..044128277248 100644
--- a/drivers/tty/serial/lantiq.c
+++ b/drivers/tty/serial/lantiq.c
@@ -1,19 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  * Copyright (C) 2004 Infineon IFAP DC COM CPE
  * Copyright (C) 2007 Felix Fietkau <nbd@openwrt.org>
  * Copyright (C) 2007 John Crispin <john@phrozen.org>
diff --git a/drivers/tty/serial/lpc32xx_hs.c b/drivers/tty/serial/lpc32xx_hs.c
index cea57ff32c33..d1d73261575b 100644
--- a/drivers/tty/serial/lpc32xx_hs.c
+++ b/drivers/tty/serial/lpc32xx_hs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * High Speed Serial Ports on NXP LPC32xx SoC
  *
@@ -6,16 +7,6 @@
  *
  * Copyright (C) 2010 NXP Semiconductors
  * Copyright (C) 2012 Roland Stigge
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c
index 5b3bd9511993..7b83a8aab495 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/m32r_sio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  m32r_sio.c
  *
@@ -8,11 +9,6 @@
  *
  *  Copyright (C) 2001  Russell King.
  *  Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /*
@@ -511,9 +507,9 @@ static void serial_unlink_irq_chain(struct uart_sio_port *up)
 /*
  * This function is used to handle ports that do not have an interrupt.
  */
-static void m32r_sio_timeout(unsigned long data)
+static void m32r_sio_timeout(struct timer_list *t)
 {
-	struct uart_sio_port *up = (struct uart_sio_port *)data;
+	struct uart_sio_port *up = from_timer(up, t, timer);
 	unsigned int timeout;
 	unsigned int sts;
 
@@ -576,7 +572,6 @@ static int m32r_sio_startup(struct uart_port *port)
 
 		timeout = timeout > 6 ? (timeout / 2 - 2) : 1;
 
-		up->timer.data = (unsigned long)up;
 		mod_timer(&up->timer, jiffies + timeout);
 	} else {
 		retval = serial_link_irq_chain(up);
@@ -907,8 +902,7 @@ static void __init m32r_sio_register_ports(struct uart_driver *drv)
 
 		up->port.line = i;
 		up->port.ops = &m32r_sio_pops;
-		init_timer(&up->timer);
-		up->timer.function = m32r_sio_timeout;
+		timer_setup(&up->timer, m32r_sio_timeout, 0);
 
 		uart_add_one_port(drv, &up->port);
 	}
diff --git a/drivers/tty/serial/m32r_sio_reg.h b/drivers/tty/serial/m32r_sio_reg.h
index 4671473793e3..6eed48828f94 100644
--- a/drivers/tty/serial/m32r_sio_reg.h
+++ b/drivers/tty/serial/m32r_sio_reg.h
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * m32r_sio_reg.h
  *
  * Copyright (C) 1992, 1994 by Theodore Ts'o.
  * Copyright (C) 2004  Hirokazu Takata <takata at linux-m32r.org>
  *
- * Redistribution of this file is permitted under the terms of the GNU
- * Public License (GPL)
- *
  * These are the UART port assignments, expressed as offsets from the base
  * register.  These assignments should hold for any serial port based on
  * a 8250, 16450, or 16550(A).
diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c
index ace82645b123..27d6049eb6a9 100644
--- a/drivers/tty/serial/max3100.c
+++ b/drivers/tty/serial/max3100.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *
  *  Copyright (C) 2008 Christian Pellegrin <chripell@evolware.org>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- *
  * Notes: the MAX3100 doesn't provide an interrupt on CTS so we have
  * to use polling for flow control. TX empty IRQ is unusable, since
  * writing conf clears FIFO buffer and we cannot have this interrupt
@@ -263,7 +258,7 @@ static void max3100_work(struct work_struct *w)
 	struct max3100_port *s = container_of(w, struct max3100_port, work);
 	int rxchars;
 	u16 tx, rx;
-	int conf, cconf, rts, crts;
+	int conf, cconf, crts;
 	struct circ_buf *xmit = &s->port.state->xmit;
 
 	dev_dbg(&s->spi->dev, "%s\n", __func__);
@@ -274,7 +269,6 @@ static void max3100_work(struct work_struct *w)
 		conf = s->conf;
 		cconf = s->conf_commit;
 		s->conf_commit = 0;
-		rts = s->rts;
 		crts = s->rts_commit;
 		s->rts_commit = 0;
 		spin_unlock(&s->conf_lock);
@@ -436,7 +430,6 @@ max3100_set_termios(struct uart_port *port, struct ktermios *termios,
 	dev_dbg(&s->spi->dev, "%s\n", __func__);
 
 	cflag = termios->c_cflag;
-	param_new = 0;
 	param_mask = 0;
 
 	baud = tty_termios_baud_rate(termios);
@@ -787,9 +780,8 @@ static int max3100_probe(struct spi_device *spi)
 		max3100s[i]->poll_time = 1;
 	max3100s[i]->max3100_hw_suspend = pdata->max3100_hw_suspend;
 	max3100s[i]->minor = i;
-	init_timer(&max3100s[i]->timer);
-	max3100s[i]->timer.function = max3100_timeout;
-	max3100s[i]->timer.data = (unsigned long) max3100s[i];
+	setup_timer(&max3100s[i]->timer, max3100_timeout,
+		    (unsigned long)max3100s[i]);
 
 	dev_dbg(&spi->dev, "%s: adding port %d\n", __func__, i);
 	max3100s[i]->port.irq = max3100s[i]->irq;
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index 9dfedbe6c071..ecb6513a6505 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Maxim (Dallas) MAX3107/8/9, MAX14830 serial driver
  *
@@ -6,11 +7,6 @@
  *  Based on max3100.c, by Christian Pellegrin <chripell@evolware.org>
  *  Based on max3110.c, by Feng Tang <feng.tang@intel.com>
  *  Based on max3107.c, by Aavamobile
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/tty/serial/mcf.c b/drivers/tty/serial/mcf.c
index 02eb32217685..7dbfb4cde124 100644
--- a/drivers/tty/serial/mcf.c
+++ b/drivers/tty/serial/mcf.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /****************************************************************************/
 
 /*
  *	mcf.c -- Freescale ColdFire UART driver
  *
  *	(C) Copyright 2003-2007, Greg Ungerer <gerg@uclinux.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /****************************************************************************/
diff --git a/drivers/tty/serial/men_z135_uart.c b/drivers/tty/serial/men_z135_uart.c
index e72ea61c70db..ef89534dd760 100644
--- a/drivers/tty/serial/men_z135_uart.c
+++ b/drivers/tty/serial/men_z135_uart.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MEN 16z135 High Speed UART
  *
  * Copyright (C) 2014 MEN Mikroelektronik GmbH (www.men.de)
  * Author: Johannes Thumshirn <johannes.thumshirn@men.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; version 2 of the License.
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ":" fmt
 
diff --git a/drivers/tty/serial/meson_uart.c b/drivers/tty/serial/meson_uart.c
index 07c0f98be3ac..daafe60175da 100644
--- a/drivers/tty/serial/meson_uart.c
+++ b/drivers/tty/serial/meson_uart.c
@@ -1,19 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Based on meson_uart.c, by AMLOGIC, INC.
  *
  * Copyright (C) 2014 Carlo Caione <carlo@caione.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
+#if defined(CONFIG_SERIAL_MESON_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
+
 #include <linux/clk.h>
 #include <linux/console.h>
 #include <linux/delay.h>
@@ -183,12 +178,12 @@ static void meson_receive_chars(struct uart_port *port)
 {
 	struct tty_port *tport = &port->state->port;
 	char flag;
-	u32 status, ch, mode;
+	u32 ostatus, status, ch, mode;
 
 	do {
 		flag = TTY_NORMAL;
 		port->icount.rx++;
-		status = readl(port->membase + AML_UART_STATUS);
+		ostatus = status = readl(port->membase + AML_UART_STATUS);
 
 		if (status & AML_UART_ERR) {
 			if (status & AML_UART_TX_FIFO_WERR)
@@ -216,6 +211,16 @@ static void meson_receive_chars(struct uart_port *port)
 		ch = readl(port->membase + AML_UART_RFIFO);
 		ch &= 0xff;
 
+		if ((ostatus & AML_UART_FRAME_ERR) && (ch == 0)) {
+			port->icount.brk++;
+			flag = TTY_BREAK;
+			if (uart_handle_break(port))
+				continue;
+		}
+
+		if (uart_handle_sysrq_char(port, ch))
+			continue;
+
 		if ((status & port->ignore_status_mask) == 0)
 			tty_insert_flip_char(tport, ch, flag);
 
@@ -362,7 +367,7 @@ static void meson_uart_set_termios(struct uart_port *port,
 
 	writel(val, port->membase + AML_UART_CONTROL);
 
-	baud = uart_get_baud_rate(port, termios, old, 9600, 4000000);
+	baud = uart_get_baud_rate(port, termios, old, 50, 4000000);
 	meson_uart_change_speed(port, baud);
 
 	port->read_status_mask = AML_UART_TX_FIFO_WERR;
diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 791c4c74f6d6..3a75ee08d619 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the PSC of the Freescale MPC52xx PSCs configured as UARTs.
  *
@@ -23,10 +24,6 @@
  *                    Grant Likely <grant.likely@secretlab.ca>
  * Copyright (C) 2004-2006 Sylvain Munaut <tnt@246tNt.com>
  * Copyright (C) 2003 MontaVista, Software, Inc.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #undef DEBUG
diff --git a/drivers/tty/serial/mps2-uart.c b/drivers/tty/serial/mps2-uart.c
index 492ec4b375a0..9f8f63719126 100644
--- a/drivers/tty/serial/mps2-uart.c
+++ b/drivers/tty/serial/mps2-uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MPS2 UART driver
  *
@@ -5,10 +6,6 @@
  *
  * Author: Vladimir Murzin <vladimir.murzin@arm.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * TODO: support for SysRq
  */
 
diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 67ffecc50e42..1f60d6fe4ff2 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic driver for the MPSC (UART mode) on Marvell parts (e.g., GT64240,
  * GT64260, MV64340, MV64360, GT96100, ... ).
@@ -10,10 +11,7 @@
  * taken from PPCBoot (now U-Boot).  Also based on drivers/serial/8250.c
  * by Russell King.
  *
- * 2004 (c) MontaVista, Software, Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
+ * 2004 (c) MontaVista, Software, Inc.
  */
 /*
  * The MPSC interface is much like a typical network controller's interface.
diff --git a/drivers/tty/serial/msm_serial.c b/drivers/tty/serial/msm_serial.c
index 1db79ee8a886..ee96cf0d0057 100644
--- a/drivers/tty/serial/msm_serial.c
+++ b/drivers/tty/serial/msm_serial.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for msm7k serial device and console
  *
  * Copyright (C) 2007 Google, Inc.
  * Author: Robert Love <rlove@google.com>
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #if defined(CONFIG_SERIAL_MSM_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/mux.c b/drivers/tty/serial/mux.c
index 2bff69e70e4b..3b74369c262f 100644
--- a/drivers/tty/serial/mux.c
+++ b/drivers/tty/serial/mux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
 ** mux.c:
 **	serial driver for the Mux console found in some PA-RISC servers.
@@ -5,11 +6,6 @@
 **	(c) Copyright 2002 Ryan Bradetich
 **	(c) Copyright 2002 Hewlett-Packard Company
 **
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-**
 ** This Driver currently only supports the console (port 0) on the MUX.
 ** Additional work will be needed on this driver to enable the full
 ** functionality of the MUX.
@@ -576,8 +572,7 @@ static int __init mux_init(void)
 
 	if(port_cnt > 0) {
 		/* Start the Mux timer */
-		init_timer(&mux_timer);
-		mux_timer.function = mux_poll;
+		setup_timer(&mux_timer, mux_poll, 0UL);
 		mod_timer(&mux_timer, jiffies + MUX_POLL_DELAY);
 
 #ifdef CONFIG_SERIAL_MUX_CONSOLE
diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 45b57c294d13..a100e98259d7 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -1,21 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
 * ***************************************************************************
 * Marvell Armada-3700 Serial Driver
 * Author: Wilson Ding <dingwei@marvell.com>
 * Copyright (C) 2015 Marvell International Ltd.
 * ***************************************************************************
-* This program is free software: you can redistribute it and/or modify it
-* under the terms of the GNU General Public License as published by the Free
-* Software Foundation, either version 2 of the License, or any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program.  If not, see <http://www.gnu.org/licenses/>.
-* ***************************************************************************
 */
 
 #include <linux/clk.h>
@@ -38,46 +27,40 @@
 #include <linux/tty_flip.h>
 
 /* Register Map */
-#define UART_RBR		0x00
-#define  RBR_BRK_DET		BIT(15)
-#define  RBR_FRM_ERR_DET	BIT(14)
-#define  RBR_PAR_ERR_DET	BIT(13)
-#define  RBR_OVR_ERR_DET	BIT(12)
+#define UART_STD_RBR		0x00
+#define UART_EXT_RBR		0x18
 
-#define UART_TSH		0x04
+#define UART_STD_TSH		0x04
+#define UART_EXT_TSH		0x1C
 
-#define UART_CTRL		0x08
+#define UART_STD_CTRL1		0x08
+#define UART_EXT_CTRL1		0x04
 #define  CTRL_SOFT_RST		BIT(31)
 #define  CTRL_TXFIFO_RST	BIT(15)
 #define  CTRL_RXFIFO_RST	BIT(14)
-#define  CTRL_ST_MIRR_EN	BIT(13)
-#define  CTRL_LPBK_EN		BIT(12)
 #define  CTRL_SND_BRK_SEQ	BIT(11)
-#define  CTRL_PAR_EN		BIT(10)
-#define  CTRL_TWO_STOP		BIT(9)
-#define  CTRL_TX_HFL_INT	BIT(8)
-#define  CTRL_RX_HFL_INT	BIT(7)
-#define  CTRL_TX_EMP_INT	BIT(6)
-#define  CTRL_TX_RDY_INT	BIT(5)
-#define  CTRL_RX_RDY_INT	BIT(4)
 #define  CTRL_BRK_DET_INT	BIT(3)
 #define  CTRL_FRM_ERR_INT	BIT(2)
 #define  CTRL_PAR_ERR_INT	BIT(1)
 #define  CTRL_OVR_ERR_INT	BIT(0)
-#define  CTRL_RX_INT			(CTRL_RX_RDY_INT | CTRL_BRK_DET_INT |\
-	CTRL_FRM_ERR_INT | CTRL_PAR_ERR_INT | CTRL_OVR_ERR_INT)
+#define  CTRL_BRK_INT		(CTRL_BRK_DET_INT | CTRL_FRM_ERR_INT | \
+				CTRL_PAR_ERR_INT | CTRL_OVR_ERR_INT)
+
+#define UART_STD_CTRL2		UART_STD_CTRL1
+#define UART_EXT_CTRL2		0x20
+#define  CTRL_STD_TX_RDY_INT	BIT(5)
+#define  CTRL_EXT_TX_RDY_INT	BIT(6)
+#define  CTRL_STD_RX_RDY_INT	BIT(4)
+#define  CTRL_EXT_RX_RDY_INT	BIT(5)
 
-#define UART_STAT		0x0c
+#define UART_STAT		0x0C
 #define  STAT_TX_FIFO_EMP	BIT(13)
-#define  STAT_RX_FIFO_EMP	BIT(12)
 #define  STAT_TX_FIFO_FUL	BIT(11)
-#define  STAT_TX_FIFO_HFL	BIT(10)
-#define  STAT_RX_TOGL		BIT(9)
-#define  STAT_RX_FIFO_FUL	BIT(8)
-#define  STAT_RX_FIFO_HFL	BIT(7)
 #define  STAT_TX_EMP		BIT(6)
-#define  STAT_TX_RDY		BIT(5)
-#define  STAT_RX_RDY		BIT(4)
+#define  STAT_STD_TX_RDY	BIT(5)
+#define  STAT_EXT_TX_RDY	BIT(15)
+#define  STAT_STD_RX_RDY	BIT(4)
+#define  STAT_EXT_RX_RDY	BIT(14)
 #define  STAT_BRK_DET		BIT(3)
 #define  STAT_FRM_ERR		BIT(2)
 #define  STAT_PAR_ERR		BIT(1)
@@ -86,18 +69,73 @@
 				 | STAT_PAR_ERR | STAT_OVR_ERR)
 
 #define UART_BRDV		0x10
+#define  BRDV_BAUD_MASK         0x3FF
 
-#define MVEBU_NR_UARTS		1
+#define MVEBU_NR_UARTS		2
 
 #define MVEBU_UART_TYPE		"mvebu-uart"
+#define DRIVER_NAME		"mvebu_serial"
+
+enum {
+	/* Either there is only one summed IRQ... */
+	UART_IRQ_SUM = 0,
+	/* ...or there are two separate IRQ for RX and TX */
+	UART_RX_IRQ = 0,
+	UART_TX_IRQ,
+	UART_IRQ_COUNT
+};
 
-static struct uart_port mvebu_uart_ports[MVEBU_NR_UARTS];
+/* Diverging register offsets */
+struct uart_regs_layout {
+	unsigned int rbr;
+	unsigned int tsh;
+	unsigned int ctrl;
+	unsigned int intr;
+};
+
+/* Diverging flags */
+struct uart_flags {
+	unsigned int ctrl_tx_rdy_int;
+	unsigned int ctrl_rx_rdy_int;
+	unsigned int stat_tx_rdy;
+	unsigned int stat_rx_rdy;
+};
+
+/* Driver data, a structure for each UART port */
+struct mvebu_uart_driver_data {
+	bool is_ext;
+	struct uart_regs_layout regs;
+	struct uart_flags flags;
+};
 
-struct mvebu_uart_data {
+/* MVEBU UART driver structure */
+struct mvebu_uart {
 	struct uart_port *port;
-	struct clk       *clk;
+	struct clk *clk;
+	int irq[UART_IRQ_COUNT];
+	unsigned char __iomem *nb;
+	struct mvebu_uart_driver_data *data;
 };
 
+static struct mvebu_uart *to_mvuart(struct uart_port *port)
+{
+	return (struct mvebu_uart *)port->private_data;
+}
+
+#define IS_EXTENDED(port) (to_mvuart(port)->data->is_ext)
+
+#define UART_RBR(port) (to_mvuart(port)->data->regs.rbr)
+#define UART_TSH(port) (to_mvuart(port)->data->regs.tsh)
+#define UART_CTRL(port) (to_mvuart(port)->data->regs.ctrl)
+#define UART_INTR(port) (to_mvuart(port)->data->regs.intr)
+
+#define CTRL_TX_RDY_INT(port) (to_mvuart(port)->data->flags.ctrl_tx_rdy_int)
+#define CTRL_RX_RDY_INT(port) (to_mvuart(port)->data->flags.ctrl_rx_rdy_int)
+#define STAT_TX_RDY(port) (to_mvuart(port)->data->flags.stat_tx_rdy)
+#define STAT_RX_RDY(port) (to_mvuart(port)->data->flags.stat_rx_rdy)
+
+static struct uart_port mvebu_uart_ports[MVEBU_NR_UARTS];
+
 /* Core UART Driver Operations */
 static unsigned int mvebu_uart_tx_empty(struct uart_port *port)
 {
@@ -127,26 +165,39 @@ static void mvebu_uart_set_mctrl(struct uart_port *port,
 
 static void mvebu_uart_stop_tx(struct uart_port *port)
 {
-	unsigned int ctl = readl(port->membase + UART_CTRL);
+	unsigned int ctl = readl(port->membase + UART_INTR(port));
 
-	ctl &= ~CTRL_TX_RDY_INT;
-	writel(ctl, port->membase + UART_CTRL);
+	ctl &= ~CTRL_TX_RDY_INT(port);
+	writel(ctl, port->membase + UART_INTR(port));
 }
 
 static void mvebu_uart_start_tx(struct uart_port *port)
 {
-	unsigned int ctl = readl(port->membase + UART_CTRL);
+	unsigned int ctl;
+	struct circ_buf *xmit = &port->state->xmit;
+
+	if (IS_EXTENDED(port) && !uart_circ_empty(xmit)) {
+		writel(xmit->buf[xmit->tail], port->membase + UART_TSH(port));
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+	}
 
-	ctl |= CTRL_TX_RDY_INT;
-	writel(ctl, port->membase + UART_CTRL);
+	ctl = readl(port->membase + UART_INTR(port));
+	ctl |= CTRL_TX_RDY_INT(port);
+	writel(ctl, port->membase + UART_INTR(port));
 }
 
 static void mvebu_uart_stop_rx(struct uart_port *port)
 {
-	unsigned int ctl = readl(port->membase + UART_CTRL);
+	unsigned int ctl;
+
+	ctl = readl(port->membase + UART_CTRL(port));
+	ctl &= ~CTRL_BRK_INT;
+	writel(ctl, port->membase + UART_CTRL(port));
 
-	ctl &= ~CTRL_RX_INT;
-	writel(ctl, port->membase + UART_CTRL);
+	ctl = readl(port->membase + UART_INTR(port));
+	ctl &= ~CTRL_RX_RDY_INT(port);
+	writel(ctl, port->membase + UART_INTR(port));
 }
 
 static void mvebu_uart_break_ctl(struct uart_port *port, int brk)
@@ -155,12 +206,12 @@ static void mvebu_uart_break_ctl(struct uart_port *port, int brk)
 	unsigned long flags;
 
 	spin_lock_irqsave(&port->lock, flags);
-	ctl = readl(port->membase + UART_CTRL);
+	ctl = readl(port->membase + UART_CTRL(port));
 	if (brk == -1)
 		ctl |= CTRL_SND_BRK_SEQ;
 	else
 		ctl &= ~CTRL_SND_BRK_SEQ;
-	writel(ctl, port->membase + UART_CTRL);
+	writel(ctl, port->membase + UART_CTRL(port));
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -171,8 +222,8 @@ static void mvebu_uart_rx_chars(struct uart_port *port, unsigned int status)
 	char flag = 0;
 
 	do {
-		if (status & STAT_RX_RDY) {
-			ch = readl(port->membase + UART_RBR);
+		if (status & STAT_RX_RDY(port)) {
+			ch = readl(port->membase + UART_RBR(port));
 			ch &= 0xff;
 			flag = TTY_NORMAL;
 			port->icount.rx++;
@@ -198,7 +249,7 @@ static void mvebu_uart_rx_chars(struct uart_port *port, unsigned int status)
 			goto ignore_char;
 
 		if (status & port->ignore_status_mask & STAT_PAR_ERR)
-			status &= ~STAT_RX_RDY;
+			status &= ~STAT_RX_RDY(port);
 
 		status &= port->read_status_mask;
 
@@ -207,7 +258,7 @@ static void mvebu_uart_rx_chars(struct uart_port *port, unsigned int status)
 
 		status &= ~port->ignore_status_mask;
 
-		if (status & STAT_RX_RDY)
+		if (status & STAT_RX_RDY(port))
 			tty_insert_flip_char(tport, ch, flag);
 
 		if (status & STAT_BRK_DET)
@@ -221,7 +272,7 @@ static void mvebu_uart_rx_chars(struct uart_port *port, unsigned int status)
 
 ignore_char:
 		status = readl(port->membase + UART_STAT);
-	} while (status & (STAT_RX_RDY | STAT_BRK_DET));
+	} while (status & (STAT_RX_RDY(port) | STAT_BRK_DET));
 
 	tty_flip_buffer_push(tport);
 }
@@ -233,7 +284,7 @@ static void mvebu_uart_tx_chars(struct uart_port *port, unsigned int status)
 	unsigned int st;
 
 	if (port->x_char) {
-		writel(port->x_char, port->membase + UART_TSH);
+		writel(port->x_char, port->membase + UART_TSH(port));
 		port->icount.tx++;
 		port->x_char = 0;
 		return;
@@ -245,7 +296,7 @@ static void mvebu_uart_tx_chars(struct uart_port *port, unsigned int status)
 	}
 
 	for (count = 0; count < port->fifosize; count++) {
-		writel(xmit->buf[xmit->tail], port->membase + UART_TSH);
+		writel(xmit->buf[xmit->tail], port->membase + UART_TSH(port));
 		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
 		port->icount.tx++;
 
@@ -269,10 +320,34 @@ static irqreturn_t mvebu_uart_isr(int irq, void *dev_id)
 	struct uart_port *port = (struct uart_port *)dev_id;
 	unsigned int st = readl(port->membase + UART_STAT);
 
-	if (st & (STAT_RX_RDY | STAT_OVR_ERR | STAT_FRM_ERR | STAT_BRK_DET))
+	if (st & (STAT_RX_RDY(port) | STAT_OVR_ERR | STAT_FRM_ERR |
+		  STAT_BRK_DET))
 		mvebu_uart_rx_chars(port, st);
 
-	if (st & STAT_TX_RDY)
+	if (st & STAT_TX_RDY(port))
+		mvebu_uart_tx_chars(port, st);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t mvebu_uart_rx_isr(int irq, void *dev_id)
+{
+	struct uart_port *port = (struct uart_port *)dev_id;
+	unsigned int st = readl(port->membase + UART_STAT);
+
+	if (st & (STAT_RX_RDY(port) | STAT_OVR_ERR | STAT_FRM_ERR |
+			STAT_BRK_DET))
+		mvebu_uart_rx_chars(port, st);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t mvebu_uart_tx_isr(int irq, void *dev_id)
+{
+	struct uart_port *port = (struct uart_port *)dev_id;
+	unsigned int st = readl(port->membase + UART_STAT);
+
+	if (st & STAT_TX_RDY(port))
 		mvebu_uart_tx_chars(port, st);
 
 	return IRQ_HANDLED;
@@ -280,18 +355,57 @@ static irqreturn_t mvebu_uart_isr(int irq, void *dev_id)
 
 static int mvebu_uart_startup(struct uart_port *port)
 {
+	struct mvebu_uart *mvuart = to_mvuart(port);
+	unsigned int ctl;
 	int ret;
 
 	writel(CTRL_TXFIFO_RST | CTRL_RXFIFO_RST,
-	       port->membase + UART_CTRL);
+	       port->membase + UART_CTRL(port));
 	udelay(1);
-	writel(CTRL_RX_INT, port->membase + UART_CTRL);
 
-	ret = request_irq(port->irq, mvebu_uart_isr, port->irqflags, "serial",
-			  port);
-	if (ret) {
-		dev_err(port->dev, "failed to request irq\n");
-		return ret;
+	/* Clear the error bits of state register before IRQ request */
+	ret = readl(port->membase + UART_STAT);
+	ret |= STAT_BRK_ERR;
+	writel(ret, port->membase + UART_STAT);
+
+	writel(CTRL_BRK_INT, port->membase + UART_CTRL(port));
+
+	ctl = readl(port->membase + UART_INTR(port));
+	ctl |= CTRL_RX_RDY_INT(port);
+	writel(ctl, port->membase + UART_INTR(port));
+
+	if (!mvuart->irq[UART_TX_IRQ]) {
+		/* Old bindings with just one interrupt (UART0 only) */
+		ret = devm_request_irq(port->dev, mvuart->irq[UART_IRQ_SUM],
+				       mvebu_uart_isr, port->irqflags,
+				       dev_name(port->dev), port);
+		if (ret) {
+			dev_err(port->dev, "unable to request IRQ %d\n",
+				mvuart->irq[UART_IRQ_SUM]);
+			return ret;
+		}
+	} else {
+		/* New bindings with an IRQ for RX and TX (both UART) */
+		ret = devm_request_irq(port->dev, mvuart->irq[UART_RX_IRQ],
+				       mvebu_uart_rx_isr, port->irqflags,
+				       dev_name(port->dev), port);
+		if (ret) {
+			dev_err(port->dev, "unable to request IRQ %d\n",
+				mvuart->irq[UART_RX_IRQ]);
+			return ret;
+		}
+
+		ret = devm_request_irq(port->dev, mvuart->irq[UART_TX_IRQ],
+				       mvebu_uart_tx_isr, port->irqflags,
+				       dev_name(port->dev),
+				       port);
+		if (ret) {
+			dev_err(port->dev, "unable to request IRQ %d\n",
+				mvuart->irq[UART_TX_IRQ]);
+			devm_free_irq(port->dev, mvuart->irq[UART_RX_IRQ],
+				      port);
+			return ret;
+		}
 	}
 
 	return 0;
@@ -299,9 +413,41 @@ static int mvebu_uart_startup(struct uart_port *port)
 
 static void mvebu_uart_shutdown(struct uart_port *port)
 {
-	writel(0, port->membase + UART_CTRL);
+	struct mvebu_uart *mvuart = to_mvuart(port);
+
+	writel(0, port->membase + UART_INTR(port));
+
+	if (!mvuart->irq[UART_TX_IRQ]) {
+		devm_free_irq(port->dev, mvuart->irq[UART_IRQ_SUM], port);
+	} else {
+		devm_free_irq(port->dev, mvuart->irq[UART_RX_IRQ], port);
+		devm_free_irq(port->dev, mvuart->irq[UART_TX_IRQ], port);
+	}
+}
+
+static int mvebu_uart_baud_rate_set(struct uart_port *port, unsigned int baud)
+{
+	struct mvebu_uart *mvuart = to_mvuart(port);
+	unsigned int baud_rate_div;
+	u32 brdv;
+
+	if (IS_ERR(mvuart->clk))
+		return -PTR_ERR(mvuart->clk);
+
+	/*
+	 * The UART clock is divided by the value of the divisor to generate
+	 * UCLK_OUT clock, which is 16 times faster than the baudrate.
+	 * This prescaler can achieve all standard baudrates until 230400.
+	 * Higher baudrates could be achieved for the extended UART by using the
+	 * programmable oversampling stack (also called fractional divisor).
+	 */
+	baud_rate_div = DIV_ROUND_UP(port->uartclk, baud * 16);
+	brdv = readl(port->membase + UART_BRDV);
+	brdv &= ~BRDV_BAUD_MASK;
+	brdv |= baud_rate_div;
+	writel(brdv, port->membase + UART_BRDV);
 
-	free_irq(port->irq, port);
+	return 0;
 }
 
 static void mvebu_uart_set_termios(struct uart_port *port,
@@ -313,8 +459,8 @@ static void mvebu_uart_set_termios(struct uart_port *port,
 
 	spin_lock_irqsave(&port->lock, flags);
 
-	port->read_status_mask = STAT_RX_RDY | STAT_OVR_ERR |
-		STAT_TX_RDY | STAT_TX_FIFO_FUL;
+	port->read_status_mask = STAT_RX_RDY(port) | STAT_OVR_ERR |
+		STAT_TX_RDY(port) | STAT_TX_FIFO_FUL;
 
 	if (termios->c_iflag & INPCK)
 		port->read_status_mask |= STAT_FRM_ERR | STAT_PAR_ERR;
@@ -325,13 +471,32 @@ static void mvebu_uart_set_termios(struct uart_port *port,
 			STAT_FRM_ERR | STAT_PAR_ERR | STAT_OVR_ERR;
 
 	if ((termios->c_cflag & CREAD) == 0)
-		port->ignore_status_mask |= STAT_RX_RDY | STAT_BRK_ERR;
-
-	if (old)
-		tty_termios_copy_hw(termios, old);
+		port->ignore_status_mask |= STAT_RX_RDY(port) | STAT_BRK_ERR;
+
+	/*
+	 * Maximum achievable frequency with simple baudrate divisor is 230400.
+	 * Since the error per bit frame would be of more than 15%, achieving
+	 * higher frequencies would require to implement the fractional divisor
+	 * feature.
+	 */
+	baud = uart_get_baud_rate(port, termios, old, 0, 230400);
+	if (mvebu_uart_baud_rate_set(port, baud)) {
+		/* No clock available, baudrate cannot be changed */
+		if (old)
+			baud = uart_get_baud_rate(port, old, NULL, 0, 230400);
+	} else {
+		tty_termios_encode_baud_rate(termios, baud, baud);
+		uart_update_timeout(port, termios->c_cflag, baud);
+	}
 
-	baud = uart_get_baud_rate(port, termios, old, 0, 460800);
-	uart_update_timeout(port, termios->c_cflag, baud);
+	/* Only the following flag changes are supported */
+	if (old) {
+		termios->c_iflag &= INPCK | IGNPAR;
+		termios->c_iflag |= old->c_iflag & ~(INPCK | IGNPAR);
+		termios->c_cflag &= CREAD | CBAUD;
+		termios->c_cflag |= old->c_cflag & ~(CREAD | CBAUD);
+		termios->c_lflag = old->c_lflag;
+	}
 
 	spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -356,10 +521,10 @@ static int mvebu_uart_get_poll_char(struct uart_port *port)
 {
 	unsigned int st = readl(port->membase + UART_STAT);
 
-	if (!(st & STAT_RX_RDY))
+	if (!(st & STAT_RX_RDY(port)))
 		return NO_POLL_CHAR;
 
-	return readl(port->membase + UART_RBR);
+	return readl(port->membase + UART_RBR(port));
 }
 
 static void mvebu_uart_put_poll_char(struct uart_port *port, unsigned char c)
@@ -375,7 +540,7 @@ static void mvebu_uart_put_poll_char(struct uart_port *port, unsigned char c)
 		udelay(1);
 	}
 
-	writel(c, port->membase + UART_TSH);
+	writel(c, port->membase + UART_TSH(port));
 }
 #endif
 
@@ -413,7 +578,8 @@ static void mvebu_uart_putc(struct uart_port *port, int c)
 			break;
 	}
 
-	writel(c, port->membase + UART_TSH);
+	/* At early stage, DT is not parsed yet, only use UART0 */
+	writel(c, port->membase + UART_STD_TSH);
 
 	for (;;) {
 		st = readl(port->membase + UART_STAT);
@@ -458,7 +624,7 @@ static void wait_for_xmitr(struct uart_port *port)
 static void mvebu_uart_console_putchar(struct uart_port *port, int ch)
 {
 	wait_for_xmitr(port);
-	writel(ch, port->membase + UART_TSH);
+	writel(ch, port->membase + UART_TSH(port));
 }
 
 static void mvebu_uart_console_write(struct console *co, const char *s,
@@ -466,7 +632,7 @@ static void mvebu_uart_console_write(struct console *co, const char *s,
 {
 	struct uart_port *port = &mvebu_uart_ports[co->index];
 	unsigned long flags;
-	unsigned int ier;
+	unsigned int ier, intr, ctl;
 	int locked = 1;
 
 	if (oops_in_progress)
@@ -474,16 +640,23 @@ static void mvebu_uart_console_write(struct console *co, const char *s,
 	else
 		spin_lock_irqsave(&port->lock, flags);
 
-	ier = readl(port->membase + UART_CTRL) &
-		(CTRL_RX_INT | CTRL_TX_RDY_INT);
-	writel(0, port->membase + UART_CTRL);
+	ier = readl(port->membase + UART_CTRL(port)) & CTRL_BRK_INT;
+	intr = readl(port->membase + UART_INTR(port)) &
+		(CTRL_RX_RDY_INT(port) | CTRL_TX_RDY_INT(port));
+	writel(0, port->membase + UART_CTRL(port));
+	writel(0, port->membase + UART_INTR(port));
 
 	uart_console_write(port, s, count, mvebu_uart_console_putchar);
 
 	wait_for_xmitr(port);
 
 	if (ier)
-		writel(ier, port->membase + UART_CTRL);
+		writel(ier, port->membase + UART_CTRL(port));
+
+	if (intr) {
+		ctl = intr | readl(port->membase + UART_INTR(port));
+		writel(ctl, port->membase + UART_INTR(port));
+	}
 
 	if (locked)
 		spin_unlock_irqrestore(&port->lock, flags);
@@ -538,7 +711,7 @@ console_initcall(mvebu_uart_console_init);
 
 static struct uart_driver mvebu_uart_driver = {
 	.owner			= THIS_MODULE,
-	.driver_name		= "mvebu_serial",
+	.driver_name		= DRIVER_NAME,
 	.dev_name		= "ttyMV",
 	.nr			= MVEBU_NR_UARTS,
 #ifdef CONFIG_SERIAL_MVEBU_CONSOLE
@@ -546,20 +719,39 @@ static struct uart_driver mvebu_uart_driver = {
 #endif
 };
 
+static const struct of_device_id mvebu_uart_of_match[];
+
+/* Counter to keep track of each UART port id when not using CONFIG_OF */
+static int uart_num_counter;
+
 static int mvebu_uart_probe(struct platform_device *pdev)
 {
 	struct resource *reg = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	struct resource *irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	const struct of_device_id *match = of_match_device(mvebu_uart_of_match,
+							   &pdev->dev);
 	struct uart_port *port;
-	struct mvebu_uart_data *data;
-	int ret;
+	struct mvebu_uart *mvuart;
+	int ret, id, irq;
+
+	if (!reg) {
+		dev_err(&pdev->dev, "no registers defined\n");
+		return -EINVAL;
+	}
+
+	/* Assume that all UART ports have a DT alias or none has */
+	id = of_alias_get_id(pdev->dev.of_node, "serial");
+	if (!pdev->dev.of_node || id < 0)
+		pdev->id = uart_num_counter++;
+	else
+		pdev->id = id;
 
-	if (!reg || !irq) {
-		dev_err(&pdev->dev, "no registers/irq defined\n");
+	if (pdev->id >= MVEBU_NR_UARTS) {
+		dev_err(&pdev->dev, "cannot have more than %d UART ports\n",
+			MVEBU_NR_UARTS);
 		return -EINVAL;
 	}
 
-	port = &mvebu_uart_ports[0];
+	port = &mvebu_uart_ports[pdev->id];
 
 	spin_lock_init(&port->lock);
 
@@ -571,9 +763,14 @@ static int mvebu_uart_probe(struct platform_device *pdev)
 	port->fifosize   = 32;
 	port->iotype     = UPIO_MEM32;
 	port->flags      = UPF_FIXED_PORT;
-	port->line       = 0; /* single port: force line number to  0 */
-
-	port->irq        = irq->start;
+	port->line       = pdev->id;
+
+	/*
+	 * IRQ number is not stored in this structure because we may have two of
+	 * them per port (RX and TX). Instead, use the driver UART structure
+	 * array so called ->irq[].
+	 */
+	port->irq        = 0;
 	port->irqflags   = 0;
 	port->mapbase    = reg->start;
 
@@ -581,15 +778,70 @@ static int mvebu_uart_probe(struct platform_device *pdev)
 	if (IS_ERR(port->membase))
 		return -PTR_ERR(port->membase);
 
-	data = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_uart_data),
-			    GFP_KERNEL);
-	if (!data)
+	mvuart = devm_kzalloc(&pdev->dev, sizeof(struct mvebu_uart),
+			      GFP_KERNEL);
+	if (!mvuart)
 		return -ENOMEM;
 
-	data->port = port;
+	/* Get controller data depending on the compatible string */
+	mvuart->data = (struct mvebu_uart_driver_data *)match->data;
+	mvuart->port = port;
+
+	port->private_data = mvuart;
+	platform_set_drvdata(pdev, mvuart);
+
+	/* Get fixed clock frequency */
+	mvuart->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(mvuart->clk)) {
+		if (PTR_ERR(mvuart->clk) == -EPROBE_DEFER)
+			return PTR_ERR(mvuart->clk);
+
+		if (IS_EXTENDED(port)) {
+			dev_err(&pdev->dev, "unable to get UART clock\n");
+			return PTR_ERR(mvuart->clk);
+		}
+	} else {
+		if (!clk_prepare_enable(mvuart->clk))
+			port->uartclk = clk_get_rate(mvuart->clk);
+	}
+
+	/* Manage interrupts */
+	if (platform_irq_count(pdev) == 1) {
+		/* Old bindings: no name on the single unamed UART0 IRQ */
+		irq = platform_get_irq(pdev, 0);
+		if (irq < 0) {
+			dev_err(&pdev->dev, "unable to get UART IRQ\n");
+			return irq;
+		}
+
+		mvuart->irq[UART_IRQ_SUM] = irq;
+	} else {
+		/*
+		 * New bindings: named interrupts (RX, TX) for both UARTS,
+		 * only make use of uart-rx and uart-tx interrupts, do not use
+		 * uart-sum of UART0 port.
+		 */
+		irq = platform_get_irq_byname(pdev, "uart-rx");
+		if (irq < 0) {
+			dev_err(&pdev->dev, "unable to get 'uart-rx' IRQ\n");
+			return irq;
+		}
+
+		mvuart->irq[UART_RX_IRQ] = irq;
 
-	port->private_data = data;
-	platform_set_drvdata(pdev, data);
+		irq = platform_get_irq_byname(pdev, "uart-tx");
+		if (irq < 0) {
+			dev_err(&pdev->dev, "unable to get 'uart-tx' IRQ\n");
+			return irq;
+		}
+
+		mvuart->irq[UART_TX_IRQ] = irq;
+	}
+
+	/* UART Soft Reset*/
+	writel(CTRL_SOFT_RST, port->membase + UART_CTRL(port));
+	udelay(1);
+	writel(0, port->membase + UART_CTRL(port));
 
 	ret = uart_add_one_port(&mvebu_uart_driver, port);
 	if (ret)
@@ -597,9 +849,40 @@ static int mvebu_uart_probe(struct platform_device *pdev)
 	return 0;
 }
 
+static struct mvebu_uart_driver_data uart_std_driver_data = {
+	.is_ext = false,
+	.regs.rbr = UART_STD_RBR,
+	.regs.tsh = UART_STD_TSH,
+	.regs.ctrl = UART_STD_CTRL1,
+	.regs.intr = UART_STD_CTRL2,
+	.flags.ctrl_tx_rdy_int = CTRL_STD_TX_RDY_INT,
+	.flags.ctrl_rx_rdy_int = CTRL_STD_RX_RDY_INT,
+	.flags.stat_tx_rdy = STAT_STD_TX_RDY,
+	.flags.stat_rx_rdy = STAT_STD_RX_RDY,
+};
+
+static struct mvebu_uart_driver_data uart_ext_driver_data = {
+	.is_ext = true,
+	.regs.rbr = UART_EXT_RBR,
+	.regs.tsh = UART_EXT_TSH,
+	.regs.ctrl = UART_EXT_CTRL1,
+	.regs.intr = UART_EXT_CTRL2,
+	.flags.ctrl_tx_rdy_int = CTRL_EXT_TX_RDY_INT,
+	.flags.ctrl_rx_rdy_int = CTRL_EXT_RX_RDY_INT,
+	.flags.stat_tx_rdy = STAT_EXT_TX_RDY,
+	.flags.stat_rx_rdy = STAT_EXT_RX_RDY,
+};
+
 /* Match table for of_platform binding */
 static const struct of_device_id mvebu_uart_of_match[] = {
-	{ .compatible = "marvell,armada-3700-uart", },
+	{
+		.compatible = "marvell,armada-3700-uart",
+		.data = (void *)&uart_std_driver_data,
+	},
+	{
+		.compatible = "marvell,armada-3700-uart-ext",
+		.data = (void *)&uart_ext_driver_data,
+	},
 	{}
 };
 
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index be94246b6fcc..efb4fd3784ed 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Application UART driver for:
  *	Freescale STMP37XX/STMP378X
@@ -9,10 +10,6 @@
  *	Provide Alphascale ASM9260 support.
  * Copyright 2008-2010 Freescale Semiconductor, Inc.
  * Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
  */
 
 #if defined(CONFIG_SERIAL_MXS_AUART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/netx-serial.c b/drivers/tty/serial/netx-serial.c
index 207a0a032ed1..b3556863491f 100644
--- a/drivers/tty/serial/netx-serial.c
+++ b/drivers/tty/serial/netx-serial.c
@@ -1,18 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #if defined(CONFIG_SERIAL_NETX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7754053deeda..53d59e9b944a 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for OMAP-UART controller.
  * Based on drivers/serial/8250.c
@@ -8,11 +9,6 @@
  *	Govindraj R	<govindraj.raja@ti.com>
  *	Thara Gopinath	<thara@ti.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * Note: This driver is made separate from 8250 driver as we cannot
  * over load 8250 driver with omap platform specific configuration for
  * features like DMA, it makes easier to implement features like DMA and
@@ -610,7 +606,7 @@ static irqreturn_t serial_omap_irq(int irq, void *dev_id)
 		default:
 			break;
 		}
-	} while (!(iir & UART_IIR_NO_INT) && max_count--);
+	} while (max_count--);
 
 	spin_unlock(&up->port.lock);
 
@@ -693,7 +689,7 @@ static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	if ((mctrl & TIOCM_RTS) && (port->status & UPSTAT_AUTORTS))
 		up->efr |= UART_EFR_RTS;
 	else
-		up->efr &= UART_EFR_RTS;
+		up->efr &= ~UART_EFR_RTS;
 	serial_out(up, UART_EFR, up->efr);
 	serial_out(up, UART_LCR, lcr);
 
@@ -1606,7 +1602,6 @@ static int serial_omap_probe_rs485(struct uart_omap_port *up,
 				   struct device_node *np)
 {
 	struct serial_rs485 *rs485conf = &up->port.rs485;
-	u32 rs485_delay[2];
 	enum of_gpio_flags flags;
 	int ret;
 
@@ -1637,17 +1632,7 @@ static int serial_omap_probe_rs485(struct uart_omap_port *up,
 		up->rts_gpio = -EINVAL;
 	}
 
-	if (of_property_read_u32_array(np, "rs485-rts-delay",
-				    rs485_delay, 2) == 0) {
-		rs485conf->delay_rts_before_send = rs485_delay[0];
-		rs485conf->delay_rts_after_send = rs485_delay[1];
-	}
-
-	if (of_property_read_bool(np, "rs485-rx-during-tx"))
-		rs485conf->flags |= SER_RS485_RX_DURING_TX;
-
-	if (of_property_read_bool(np, "linux,rs485-enabled-at-boot-time"))
-		rs485conf->flags |= SER_RS485_ENABLED;
+	of_get_rs485_mode(np, rs485conf);
 
 	return 0;
 }
diff --git a/drivers/tty/serial/owl-uart.c b/drivers/tty/serial/owl-uart.c
index b9c859365334..29a6dc6a8d23 100644
--- a/drivers/tty/serial/owl-uart.c
+++ b/drivers/tty/serial/owl-uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Actions Semi Owl family serial console
  *
@@ -5,19 +6,6 @@
  * Author: Actions Semi, Inc.
  *
  * Copyright (c) 2016-2017 Andreas Färber
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index ae8cfc81ffc5..760d5dd0aada 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1,18 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
- *
- *This program is free software; you can redistribute it and/or modify
- *it under the terms of the GNU General Public License as published by
- *the Free Software Foundation; version 2 of the License.
- *
- *This program is distributed in the hope that it will be useful,
- *but WITHOUT ANY WARRANTY; without even the implied warranty of
- *MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *GNU General Public License for more details.
- *
- *You should have received a copy of the GNU General Public License
- *along with this program; if not, write to the Free Software
- *Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
  */
 #if defined(CONFIG_SERIAL_PCH_UART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
 #define SUPPORT_SYSRQ
@@ -371,7 +359,7 @@ static const struct file_operations port_regs_ops = {
 };
 #endif	/* CONFIG_DEBUG_FS */
 
-static struct dmi_system_id pch_uart_dmi_table[] = {
+static const struct dmi_system_id pch_uart_dmi_table[] = {
 	{
 		.ident = "CM-iTC",
 		{
diff --git a/drivers/tty/serial/pic32_uart.c b/drivers/tty/serial/pic32_uart.c
index 00a33eb859d3..fd80d999308d 100644
--- a/drivers/tty/serial/pic32_uart.c
+++ b/drivers/tty/serial/pic32_uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * PIC32 Integrated Serial Driver.
  *
@@ -5,8 +6,6 @@
  *
  * Authors:
  *   Sorin-Andrei Pistirica <andrei.pistirica@microchip.com>
- *
- * Licensed under GPLv2 or later.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/tty/serial/pic32_uart.h b/drivers/tty/serial/pic32_uart.h
index ec379da55ebb..2f2b56927dc6 100644
--- a/drivers/tty/serial/pic32_uart.h
+++ b/drivers/tty/serial/pic32_uart.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * PIC32 Integrated Serial Driver.
  *
@@ -5,8 +6,6 @@
  *
  * Authors:
  *   Sorin-Andrei Pistirica <andrei.pistirica@microchip.com>
- *
- * Licensed under GPLv2 or later.
  */
 #ifndef __DT_PIC32_UART_H__
 #define __DT_PIC32_UART_H__
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 6ccdd018fb45..3d21790d961e 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for PowerMac Z85c30 based ESCC cell found in the
  * "macio" ASICs of various PowerMac models
@@ -13,20 +14,6 @@
  * and once done, I expect that driver to remain fairly stable in
  * the long term, unless we change the driver model again...
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  * 2004-08-06 Harald Welte <laforge@gnumonks.org>
  *	- Enable BREAK interrupt
  *	- Add support for sysreq
diff --git a/drivers/tty/serial/pmac_zilog.h b/drivers/tty/serial/pmac_zilog.h
index 3483242ee3e0..bb874e76810e 100644
--- a/drivers/tty/serial/pmac_zilog.h
+++ b/drivers/tty/serial/pmac_zilog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PMAC_ZILOG_H__
 #define __PMAC_ZILOG_H__
 
diff --git a/drivers/tty/serial/pnx8xxx_uart.c b/drivers/tty/serial/pnx8xxx_uart.c
index dab2668d3879..f8812389b8a8 100644
--- a/drivers/tty/serial/pnx8xxx_uart.c
+++ b/drivers/tty/serial/pnx8xxx_uart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UART driver for PNX8XXX SoCs
  *
@@ -7,11 +8,6 @@
  *
  * Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  * Copyright (C) 2000 Deep Blue Solutions Ltd.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of
- * any kind, whether express or implied.
- *
  */
 
 #if defined(CONFIG_SERIAL_PNX8XXX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -666,9 +662,8 @@ static void __init pnx8xxx_init_ports(void)
 	first = 0;
 
 	for (i = 0; i < NR_PORTS; i++) {
-		init_timer(&pnx8xxx_ports[i].timer);
-		pnx8xxx_ports[i].timer.function = pnx8xxx_timeout;
-		pnx8xxx_ports[i].timer.data     = (unsigned long)&pnx8xxx_ports[i];
+		setup_timer(&pnx8xxx_ports[i].timer, pnx8xxx_timeout,
+			    (unsigned long)&pnx8xxx_ports[i]);
 		pnx8xxx_ports[i].port.ops = &pnx8xxx_pops;
 	}
 }
diff --git a/drivers/tty/serial/pxa.c b/drivers/tty/serial/pxa.c
index 905631df1f8b..baf552944d56 100644
--- a/drivers/tty/serial/pxa.c
+++ b/drivers/tty/serial/pxa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Based on drivers/serial/8250.c by Russell King.
  *
@@ -5,11 +6,6 @@
  *  Created:	Feb 20, 2003
  *  Copyright:	(C) 2003 Monta Vista Software, Inc.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * Note 1: This driver is made separate from the already too overloaded
  * 8250.c because it needs some kirks of its own and that'll make it
  * easier to add DMA support.
diff --git a/drivers/tty/serial/rp2.c b/drivers/tty/serial/rp2.c
index 056f91b3a4ca..520b43b23543 100644
--- a/drivers/tty/serial/rp2.c
+++ b/drivers/tty/serial/rp2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for Comtrol RocketPort EXPRESS/INFINITY cards
  *
@@ -10,10 +11,6 @@
  *
  *   rocketport_infinity_express-linux-1.20.tar.gz
  *     Copyright (C) 2004-2011 Comtrol, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c
index fd3d1329d48c..4e3f169b30cf 100644
--- a/drivers/tty/serial/sa1100.c
+++ b/drivers/tty/serial/sa1100.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for SA11x0 serial ports
  *
  *  Based on drivers/char/serial.c, by Linus Torvalds, Theodore Ts'o.
  *
  *  Copyright (C) 2000 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #if defined(CONFIG_SERIAL_SA1100_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -640,9 +627,8 @@ static void __init sa1100_init_ports(void)
 		sa1100_ports[i].port.fifosize  = 8;
 		sa1100_ports[i].port.line      = i;
 		sa1100_ports[i].port.iotype    = UPIO_MEM;
-		init_timer(&sa1100_ports[i].timer);
-		sa1100_ports[i].timer.function = sa1100_timeout;
-		sa1100_ports[i].timer.data     = (unsigned long)&sa1100_ports[i];
+		setup_timer(&sa1100_ports[i].timer, sa1100_timeout,
+			    (unsigned long)&sa1100_ports[i]);
 	}
 
 	/*
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 8aca18c4cdea..f9fecc5ed0ce 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver core for Samsung SoC onboard UARTs.
  *
  * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
  *	http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
 */
 
 /* Hote on 2410 error handling
diff --git a/drivers/tty/serial/samsung.h b/drivers/tty/serial/samsung.h
index 965199b6c16f..f93022113f59 100644
--- a/drivers/tty/serial/samsung.h
+++ b/drivers/tty/serial/samsung.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef __SAMSUNG_H
 #define __SAMSUNG_H
 
@@ -6,10 +7,6 @@
  *
  * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
  *	http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
 */
 
 #include <linux/dmaengine.h>
diff --git a/drivers/tty/serial/sb1250-duart.c b/drivers/tty/serial/sb1250-duart.c
index 041625cc24bb..329aced26bd8 100644
--- a/drivers/tty/serial/sb1250-duart.c
+++ b/drivers/tty/serial/sb1250-duart.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	Support for the asynchronous serial interface (DUART) included
  *	in the BCM1250 and derived System-On-a-Chip (SOC) devices.
@@ -9,11 +10,6 @@
  *
  *	Copyright (c) 2000, 2001, 2002, 2003, 2004  Broadcom Corporation
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
  *	References:
  *
  *	"BCM1250/BCM1125/BCM1125H User Manual", Broadcom Corporation
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index ca54ce074a5f..65792a3539d0 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * SC16IS7xx tty serial driver - Copyright (C) 2014 GridPoint
  * Author: Jon Ringle <jringle@gridpoint.com>
  *
  *  Based on max310x.c, by Alexander Shiyan <shc_work@mail.ru>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index cdd2f942317c..d6ae3086c2a2 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  NXP (Philips) SCC+++(SCN+++) serial driver
  *
  *  Copyright (C) 2012 Alexander Shiyan <shc_work@mail.ru>
  *
  *  Based on sc26xx.c, by Thomas Bogendörfer (tsbogend@alpha.franken.de)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #if defined(CONFIG_SERIAL_SCCNXP_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
@@ -465,9 +461,9 @@ static void sccnxp_handle_events(struct sccnxp_port *s)
 	} while (1);
 }
 
-static void sccnxp_timer(unsigned long data)
+static void sccnxp_timer(struct timer_list *t)
 {
-	struct sccnxp_port *s = (struct sccnxp_port *)data;
+	struct sccnxp_port *s = from_timer(s, t, timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&s->lock, flags);
@@ -889,7 +885,16 @@ static int sccnxp_probe(struct platform_device *pdev)
 			goto err_out;
 		uartclk = 0;
 	} else {
-		clk_prepare_enable(clk);
+		ret = clk_prepare_enable(clk);
+		if (ret)
+			goto err_out;
+
+		ret = devm_add_action_or_reset(&pdev->dev,
+				(void(*)(void *))clk_disable_unprepare,
+				clk);
+		if (ret)
+			goto err_out;
+
 		uartclk = clk_get_rate(clk);
 	}
 
@@ -978,8 +983,7 @@ static int sccnxp_probe(struct platform_device *pdev)
 
 		dev_err(&pdev->dev, "Unable to reguest IRQ %i\n", s->irq);
 	} else {
-		init_timer(&s->timer);
-		setup_timer(&s->timer, sccnxp_timer, (unsigned long)s);
+		timer_setup(&s->timer, sccnxp_timer, 0);
 		mod_timer(&s->timer, jiffies +
 			  usecs_to_jiffies(s->pdata.poll_time_us));
 		return 0;
@@ -988,7 +992,7 @@ static int sccnxp_probe(struct platform_device *pdev)
 	uart_unregister_driver(&s->uart);
 err_out:
 	if (!IS_ERR(s->regulator))
-		return regulator_disable(s->regulator);
+		regulator_disable(s->regulator);
 
 	return ret;
 }
diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index cf9b736f26f8..af2a29cfbbe9 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * serial_tegra.c
  *
@@ -6,18 +7,6 @@
  * Copyright (c) 2012-2013, NVIDIA CORPORATION.  All rights reserved.
  *
  * Author: Laxman Dewangan <ldewangan@nvidia.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 3a14cccbd7ff..854995e1cae7 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver core for serial ports
  *
@@ -5,20 +6,6 @@
  *
  *  Copyright 1999 ARM Limited
  *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 #include <linux/module.h>
 #include <linux/tty.h>
@@ -1482,10 +1469,10 @@ out:
 static void uart_close(struct tty_struct *tty, struct file *filp)
 {
 	struct uart_state *state = tty->driver_data;
-	struct tty_port *port;
 
 	if (!state) {
 		struct uart_driver *drv = tty->driver->driver_state;
+		struct tty_port *port;
 
 		state = drv->state + tty->index;
 		port = &state->port;
@@ -1495,7 +1482,6 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
 		return;
 	}
 
-	port = &state->port;
 	pr_debug("uart_close(%d) called\n", tty->index);
 
 	tty_port_close(tty->port, tty, filp);
@@ -3026,5 +3012,41 @@ EXPORT_SYMBOL(uart_resume_port);
 EXPORT_SYMBOL(uart_add_one_port);
 EXPORT_SYMBOL(uart_remove_one_port);
 
+/**
+ * of_get_rs485_mode() - Implement parsing rs485 properties
+ * @np: uart node
+ * @rs485conf: output parameter
+ *
+ * This function implements the device tree binding described in
+ * Documentation/devicetree/bindings/serial/rs485.txt.
+ */
+void of_get_rs485_mode(struct device_node *np, struct serial_rs485 *rs485conf)
+{
+	u32 rs485_delay[2];
+	int ret;
+
+	ret = of_property_read_u32_array(np, "rs485-rts-delay", rs485_delay, 2);
+	if (!ret) {
+		rs485conf->delay_rts_before_send = rs485_delay[0];
+		rs485conf->delay_rts_after_send = rs485_delay[1];
+	} else {
+		rs485conf->delay_rts_before_send = 0;
+		rs485conf->delay_rts_after_send = 0;
+	}
+
+	/*
+	 * clear full-duplex and enabled flags to get to a defined state with
+	 * the two following properties.
+	 */
+	rs485conf->flags &= ~(SER_RS485_RX_DURING_TX | SER_RS485_ENABLED);
+
+	if (of_property_read_bool(np, "rs485-rx-during-tx"))
+		rs485conf->flags |= SER_RS485_RX_DURING_TX;
+
+	if (of_property_read_bool(np, "linux,rs485-enabled-at-boot-time"))
+		rs485conf->flags |= SER_RS485_ENABLED;
+}
+EXPORT_SYMBOL_GPL(of_get_rs485_mode);
+
 MODULE_DESCRIPTION("Serial driver core");
 MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/serial_ks8695.c b/drivers/tty/serial/serial_ks8695.c
index 57f152394af5..b461d791188c 100644
--- a/drivers/tty/serial/serial_ks8695.c
+++ b/drivers/tty/serial/serial_ks8695.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for KS8695 serial ports
  *
  *  Based on drivers/serial/serial_amba.c, by Kam Lee.
  *
  *  Copyright 2002-2005 Micrel Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 #include <linux/module.h>
 #include <linux/tty.h>
diff --git a/drivers/tty/serial/serial_mctrl_gpio.c b/drivers/tty/serial/serial_mctrl_gpio.c
index d2da6aa7f27d..1c06325beaca 100644
--- a/drivers/tty/serial/serial_mctrl_gpio.c
+++ b/drivers/tty/serial/serial_mctrl_gpio.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Helpers for controlling modem lines via GPIO
  *
  * Copyright (C) 2014 Paratronic S.A.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/err.h>
diff --git a/drivers/tty/serial/serial_mctrl_gpio.h b/drivers/tty/serial/serial_mctrl_gpio.h
index fa000bcff217..b7d3cca48ede 100644
--- a/drivers/tty/serial/serial_mctrl_gpio.h
+++ b/drivers/tty/serial/serial_mctrl_gpio.h
@@ -1,18 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Helpers for controlling modem lines via GPIO
  *
  * Copyright (C) 2014 Paratronic S.A.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef __SERIAL_MCTRL_GPIO__
diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index f80fead6c5fc..1b4008d022bf 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Derived from many drivers using generic_serial interface,
  * especially serial_tx3912.c by Steven J. Hill and r39xx_serial.c
@@ -8,10 +9,6 @@
  *  Copyright (C) 2001 Steven J. Hill (sjhill@realitydiluted.com)
  *  Copyright (C) 2000-2002 Toshiba Corporation
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  *  Serial driver for TX3927/TX4927/TX4925/TX4938 internal SIO controller
  */
 
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 784dd42002ea..31fcc7072a90 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SuperH on-chip serial module support.  (SCI with no FIFO / with FIFO)
  *
@@ -13,10 +14,6 @@
  *   Modified to support SecureEdge. David McCullough (2002)
  *   Modified to support SH7300 SCIF. Takashi Kusuda (Jun 2003).
  *   Removed SH7300 support (Jul 2007).
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #if defined(CONFIG_SERIAL_SH_SCI_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
 #define SUPPORT_SYSRQ
@@ -40,6 +37,7 @@
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/scatterlist.h>
@@ -152,6 +150,7 @@ struct sci_port {
 	int				rx_trigger;
 	struct timer_list		rx_fifo_timer;
 	int				rx_fifo_timeout;
+	u16				hscif_tot;
 
 	bool has_rtscts;
 	bool autorts;
@@ -1107,8 +1106,14 @@ static ssize_t rx_fifo_timeout_show(struct device *dev,
 {
 	struct uart_port *port = dev_get_drvdata(dev);
 	struct sci_port *sci = to_sci_port(port);
+	int v;
+
+	if (port->type == PORT_HSCIF)
+		v = sci->hscif_tot >> HSSCR_TOT_SHIFT;
+	else
+		v = sci->rx_fifo_timeout;
 
-	return sprintf(buf, "%d\n", sci->rx_fifo_timeout);
+	return sprintf(buf, "%d\n", v);
 }
 
 static ssize_t rx_fifo_timeout_store(struct device *dev,
@@ -1124,11 +1129,19 @@ static ssize_t rx_fifo_timeout_store(struct device *dev,
 	ret = kstrtol(buf, 0, &r);
 	if (ret)
 		return ret;
-	sci->rx_fifo_timeout = r;
-	scif_set_rtrg(port, 1);
-	if (r > 0)
-		setup_timer(&sci->rx_fifo_timer, rx_fifo_timer_fn,
-			    (unsigned long)sci);
+
+	if (port->type == PORT_HSCIF) {
+		if (r < 0 || r > 3)
+			return -EINVAL;
+		sci->hscif_tot = r << HSSCR_TOT_SHIFT;
+	} else {
+		sci->rx_fifo_timeout = r;
+		scif_set_rtrg(port, 1);
+		if (r > 0)
+			setup_timer(&sci->rx_fifo_timer, rx_fifo_timer_fn,
+				    (unsigned long)sci);
+	}
+
 	return count;
 }
 
@@ -1210,8 +1223,11 @@ static void sci_rx_dma_release(struct sci_port *s, bool enable_pio)
 	dma_free_coherent(chan->device->dev, s->buf_len_rx * 2, s->rx_buf[0],
 			  sg_dma_address(&s->sg_rx[0]));
 	dma_release_channel(chan);
-	if (enable_pio)
+	if (enable_pio) {
+		spin_lock_irqsave(&port->lock, flags);
 		sci_start_rx(port);
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
 }
 
 static void sci_dma_rx_complete(void *arg)
@@ -1278,8 +1294,11 @@ static void sci_tx_dma_release(struct sci_port *s, bool enable_pio)
 	dma_unmap_single(chan->device->dev, s->tx_dma_addr, UART_XMIT_SIZE,
 			 DMA_TO_DEVICE);
 	dma_release_channel(chan);
-	if (enable_pio)
+	if (enable_pio) {
+		spin_lock_irqsave(&port->lock, flags);
 		sci_start_tx(port);
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
 }
 
 static void sci_submit_rx(struct sci_port *s)
@@ -1491,6 +1510,14 @@ static void sci_request_dma(struct uart_port *port)
 		return;
 
 	s->cookie_tx = -EINVAL;
+
+	/*
+	 * Don't request a dma channel if no channel was specified
+	 * in the device tree.
+	 */
+	if (!of_find_property(port->dev->of_node, "dmas", NULL))
+		return;
+
 	chan = sci_request_dma_chan(port, DMA_MEM_TO_DEV);
 	dev_dbg(port->dev, "%s: TX: got channel %p\n", __func__, chan);
 	if (chan) {
@@ -1980,6 +2007,7 @@ static void sci_enable_ms(struct uart_port *port)
 static void sci_break_ctl(struct uart_port *port, int break_state)
 {
 	unsigned short scscr, scsptr;
+	unsigned long flags;
 
 	/* check wheter the port has SCSPTR */
 	if (!sci_getreg(port, SCSPTR)->size) {
@@ -1990,6 +2018,7 @@ static void sci_break_ctl(struct uart_port *port, int break_state)
 		return;
 	}
 
+	spin_lock_irqsave(&port->lock, flags);
 	scsptr = serial_port_in(port, SCSPTR);
 	scscr = serial_port_in(port, SCSCR);
 
@@ -2003,6 +2032,7 @@ static void sci_break_ctl(struct uart_port *port, int break_state)
 
 	serial_port_out(port, SCSPTR, scsptr);
 	serial_port_out(port, SCSCR, scscr);
+	spin_unlock_irqrestore(&port->lock, flags);
 }
 
 static int sci_startup(struct uart_port *port)
@@ -2037,9 +2067,13 @@ static void sci_shutdown(struct uart_port *port)
 	spin_lock_irqsave(&port->lock, flags);
 	sci_stop_rx(port);
 	sci_stop_tx(port);
-	/* Stop RX and TX, disable related interrupts, keep clock source */
+	/*
+	 * Stop RX and TX, disable related interrupts, keep clock source
+	 * and HSCIF TOT bits
+	 */
 	scr = serial_port_in(port, SCSCR);
-	serial_port_out(port, SCSCR, scr & (SCSCR_CKE1 | SCSCR_CKE0));
+	serial_port_out(port, SCSCR, scr &
+			(SCSCR_CKE1 | SCSCR_CKE0 | s->hscif_tot));
 	spin_unlock_irqrestore(&port->lock, flags);
 
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
@@ -2186,7 +2220,7 @@ static void sci_reset(struct uart_port *port)
 	unsigned int status;
 	struct sci_port *s = to_sci_port(port);
 
-	serial_port_out(port, SCSCR, 0x00);	/* TE=0, RE=0, CKE1=0 */
+	serial_port_out(port, SCSCR, s->hscif_tot);	/* TE=0, RE=0, CKE1=0 */
 
 	reg = sci_getreg(port, SCFCR);
 	if (reg->size)
@@ -2227,6 +2261,7 @@ static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
 	int min_err = INT_MAX, err;
 	unsigned long max_freq = 0;
 	int best_clk = -1;
+	unsigned long flags;
 
 	if ((termios->c_cflag & CSIZE) == CS7)
 		smr_val |= SCSMR_CHR;
@@ -2336,6 +2371,8 @@ done:
 		serial_port_out(port, SCCKS, sccks);
 	}
 
+	spin_lock_irqsave(&port->lock, flags);
+
 	sci_reset(port);
 
 	uart_update_timeout(port, termios->c_cflag, baud);
@@ -2353,10 +2390,7 @@ done:
 			case 27: smr_val |= SCSMR_SRC_27; break;
 			}
 		smr_val |= cks;
-		dev_dbg(port->dev,
-			 "SCR 0x%x SMR 0x%x BRR %u CKS 0x%x DL %u SRR %u\n",
-			 scr_val, smr_val, brr, sccks, dl, srr);
-		serial_port_out(port, SCSCR, scr_val);
+		serial_port_out(port, SCSCR, scr_val | s->hscif_tot);
 		serial_port_out(port, SCSMR, smr_val);
 		serial_port_out(port, SCBRR, brr);
 		if (sci_getreg(port, HSSRR)->size)
@@ -2369,8 +2403,7 @@ done:
 		scr_val = s->cfg->scscr & (SCSCR_CKE1 | SCSCR_CKE0);
 		smr_val |= serial_port_in(port, SCSMR) &
 			   (SCSMR_CKEDG | SCSMR_SRC_MASK | SCSMR_CKS);
-		dev_dbg(port->dev, "SCR 0x%x SMR 0x%x\n", scr_val, smr_val);
-		serial_port_out(port, SCSCR, scr_val);
+		serial_port_out(port, SCSCR, scr_val | s->hscif_tot);
 		serial_port_out(port, SCSMR, smr_val);
 	}
 
@@ -2406,8 +2439,7 @@ done:
 
 	scr_val |= SCSCR_RE | SCSCR_TE |
 		   (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0));
-	dev_dbg(port->dev, "SCSCR 0x%x\n", scr_val);
-	serial_port_out(port, SCSCR, scr_val);
+	serial_port_out(port, SCSCR, scr_val | s->hscif_tot);
 	if ((srr + 1 == 5) &&
 	    (port->type == PORT_SCIFA || port->type == PORT_SCIFB)) {
 		/*
@@ -2453,8 +2485,6 @@ done:
 	s->rx_frame = (100 * bits * HZ) / (baud / 10);
 #ifdef CONFIG_SERIAL_SH_SCI_DMA
 	s->rx_timeout = DIV_ROUND_UP(s->buf_len_rx * 2 * s->rx_frame, 1000);
-	dev_dbg(port->dev, "DMA Rx t-out %ums, tty t-out %u jiffies\n",
-		s->rx_timeout * 1000 / HZ, port->timeout);
 	if (s->rx_timeout < msecs_to_jiffies(20))
 		s->rx_timeout = msecs_to_jiffies(20);
 #endif
@@ -2462,6 +2492,8 @@ done:
 	if ((termios->c_cflag & CREAD) != 0)
 		sci_start_rx(port);
 
+	spin_unlock_irqrestore(&port->lock, flags);
+
 	sci_port_disable(s);
 
 	if (UART_ENABLE_MS(port, termios->c_cflag))
@@ -2773,6 +2805,7 @@ static int sci_init_single(struct platform_device *dev,
 	}
 
 	sci_port->rx_fifo_timeout = 0;
+	sci_port->hscif_tot = 0;
 
 	/* SCIFA on sh7723 and sh7724 need a custom sampling rate that doesn't
 	 * match the SoC datasheet, this should be investigated. Let platform
@@ -2860,7 +2893,7 @@ static void serial_console_write(struct console *co, const char *s,
 	ctrl_temp = SCSCR_RE | SCSCR_TE |
 		    (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) |
 		    (ctrl & (SCSCR_CKE1 | SCSCR_CKE0));
-	serial_port_out(port, SCSCR, ctrl_temp);
+	serial_port_out(port, SCSCR, ctrl_temp | sci_port->hscif_tot);
 
 	uart_console_write(port, s, count, serial_console_putchar);
 
@@ -2988,7 +3021,8 @@ static int sci_remove(struct platform_device *dev)
 		sysfs_remove_file(&dev->dev.kobj,
 				  &dev_attr_rx_fifo_trigger.attr);
 	}
-	if (port->port.type == PORT_SCIFA || port->port.type == PORT_SCIFB) {
+	if (port->port.type == PORT_SCIFA || port->port.type == PORT_SCIFB ||
+	    port->port.type == PORT_HSCIF) {
 		sysfs_remove_file(&dev->dev.kobj,
 				  &dev_attr_rx_fifo_timeout.attr);
 	}
@@ -3044,17 +3078,15 @@ static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
 					  unsigned int *dev_id)
 {
 	struct device_node *np = pdev->dev.of_node;
-	const struct of_device_id *match;
 	struct plat_sci_port *p;
 	struct sci_port *sp;
+	const void *data;
 	int id;
 
 	if (!IS_ENABLED(CONFIG_OF) || !np)
 		return NULL;
 
-	match = of_match_node(of_sci_match, np);
-	if (!match)
-		return NULL;
+	data = of_device_get_match_data(&pdev->dev);
 
 	p = devm_kzalloc(&pdev->dev, sizeof(struct plat_sci_port), GFP_KERNEL);
 	if (!p)
@@ -3070,8 +3102,8 @@ static struct plat_sci_port *sci_parse_dt(struct platform_device *pdev,
 	sp = &sci_ports[id];
 	*dev_id = id;
 
-	p->type = SCI_OF_TYPE(match->data);
-	p->regtype = SCI_OF_REGTYPE(match->data);
+	p->type = SCI_OF_TYPE(data);
+	p->regtype = SCI_OF_REGTYPE(data);
 
 	sp->has_rtscts = of_property_read_bool(np, "uart-has-rtscts");
 
@@ -3173,7 +3205,8 @@ static int sci_probe(struct platform_device *dev)
 		if (ret)
 			return ret;
 	}
-	if (sp->port.type == PORT_SCIFA || sp->port.type ==  PORT_SCIFB) {
+	if (sp->port.type == PORT_SCIFA || sp->port.type == PORT_SCIFB ||
+	    sp->port.type == PORT_HSCIF) {
 		ret = sysfs_create_file(&dev->dev.kobj,
 				&dev_attr_rx_fifo_timeout.attr);
 		if (ret) {
@@ -3244,7 +3277,7 @@ early_platform_init_buffer("earlyprintk", &sci_driver,
 			   early_serial_buf, ARRAY_SIZE(early_serial_buf));
 #endif
 #ifdef CONFIG_SERIAL_SH_SCI_EARLYCON
-static struct __init plat_sci_port port_cfg;
+static struct plat_sci_port port_cfg __initdata;
 
 static int __init early_console_setup(struct earlycon_device *device,
 				      int type)
diff --git a/drivers/tty/serial/sh-sci.h b/drivers/tty/serial/sh-sci.h
index 971b2ab088d8..a5f792fd48d9 100644
--- a/drivers/tty/serial/sh-sci.h
+++ b/drivers/tty/serial/sh-sci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/bitops.h>
 #include <linux/serial_core.h>
 #include <linux/io.h>
@@ -62,6 +63,9 @@ enum {
 #define SCSCR_TDRQE	BIT(15)	/* Tx Data Transfer Request Enable */
 #define SCSCR_RDRQE	BIT(14)	/* Rx Data Transfer Request Enable */
 
+/* Serial Control Register, HSCIF-only bits */
+#define HSSCR_TOT_SHIFT	14
+
 /* SCxSR (Serial Status Register) on SCI */
 #define SCI_TDRE	BIT(7)	/* Transmit Data Register Empty */
 #define SCI_RDRF	BIT(6)	/* Receive Data Register Full */
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 684cb8dd8050..9925b00a9777 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for CSR SiRFprimaII onboard UARTs.
  *
  * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- *
- * Licensed under GPLv2 or later.
  */
 
 #include <linux/module.h>
diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h
index 43756bd9111c..004ca684d3ae 100644
--- a/drivers/tty/serial/sirfsoc_uart.h
+++ b/drivers/tty/serial/sirfsoc_uart.h
@@ -1,9 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Drivers for CSR SiRFprimaII onboard UARTs.
  *
  * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
- *
- * Licensed under GPLv2 or later.
  */
 #include <linux/bitops.h>
 #include <linux/log2.h>
diff --git a/drivers/tty/serial/sn_console.c b/drivers/tty/serial/sn_console.c
index 9e0e6586c698..ed78542c4c37 100644
--- a/drivers/tty/serial/sn_console.c
+++ b/drivers/tty/serial/sn_console.c
@@ -8,25 +8,6 @@
  *
  * Copyright (c) 2004-2006 Silicon Graphics, Inc.  All Rights Reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Further, this software is distributed without any warranty that it is
- * free of the rightful claim of any third person regarding infringement
- * or the like.  Any license provided herein, whether implied or
- * otherwise, applies only to this software file.  Patent licenses, if
- * any, provided herein do not apply to combinations of this program with
- * other software, or any other product whatsoever.
- *
- * You should have received a copy of the GNU General Public
- * License along with this program; if not, write the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
  * Contact information:  Silicon Graphics, Inc., 1500 Crittenden Lane,
  * Mountain View, CA  94043, or:
  *
@@ -687,9 +668,7 @@ static void __init sn_sal_switch_to_asynch(struct sn_cons_port *port)
 	 * timer to poll for input and push data from the console
 	 * buffer.
 	 */
-	init_timer(&port->sc_timer);
-	port->sc_timer.function = sn_sal_timer_poll;
-	port->sc_timer.data = (unsigned long)port;
+	setup_timer(&port->sc_timer, sn_sal_timer_poll, (unsigned long)port);
 
 	if (IS_RUNNING_ON_SIMULATOR())
 		port->sc_interrupt_timeout = 6;
diff --git a/drivers/tty/serial/sprd_serial.c b/drivers/tty/serial/sprd_serial.c
index e902494ebbd5..828f1143859c 100644
--- a/drivers/tty/serial/sprd_serial.c
+++ b/drivers/tty/serial/sprd_serial.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2012-2015 Spreadtrum Communications Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #if defined(CONFIG_SERIAL_SPRD_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/st-asc.c b/drivers/tty/serial/st-asc.c
index b313a792b149..c763253514e9 100644
--- a/drivers/tty/serial/st-asc.c
+++ b/drivers/tty/serial/st-asc.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * st-asc.c: ST Asynchronous serial controller (ASC) driver
  *
  * Copyright (C) 2003-2013 STMicroelectronics (R&D) Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 
 #if defined(CONFIG_SERIAL_ST_ASC_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 03a583264d9e..0fa735b60f2d 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -1,9 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
  * Copyright (C) STMicroelectronics SA 2017
  * Authors:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
  *	     Gerald Baeza <gerald.baeza@st.com>
- * License terms:  GNU General Public License (GPL), version 2
  *
  * Inspired by st-asc.c from STMicroelectronics (c)
  */
@@ -736,11 +736,8 @@ static struct stm32_port *stm32_of_get_stm32_port(struct platform_device *pdev)
 
 #ifdef CONFIG_OF
 static const struct of_device_id stm32_match[] = {
-	{ .compatible = "st,stm32-usart", .data = &stm32f4_info},
 	{ .compatible = "st,stm32-uart", .data = &stm32f4_info},
-	{ .compatible = "st,stm32f7-usart", .data = &stm32f7_info},
 	{ .compatible = "st,stm32f7-uart", .data = &stm32f7_info},
-	{ .compatible = "st,stm32h7-usart", .data = &stm32h7_info},
 	{ .compatible = "st,stm32h7-uart", .data = &stm32h7_info},
 	{},
 };
diff --git a/drivers/tty/serial/stm32-usart.h b/drivers/tty/serial/stm32-usart.h
index ffc0c5285e51..8a5ff54d0f42 100644
--- a/drivers/tty/serial/stm32-usart.h
+++ b/drivers/tty/serial/stm32-usart.h
@@ -1,9 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) Maxime Coquelin 2015
  * Copyright (C) STMicroelectronics SA 2017
  * Authors:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
  *	     Gerald Baeza <gerald_baeza@yahoo.fr>
- * License terms:  GNU General Public License (GPL), version 2
  */
 
 #define DRIVER_NAME "stm32-usart"
diff --git a/drivers/tty/serial/suncore.c b/drivers/tty/serial/suncore.c
index 127472bd6a7c..70a4ea4eaa6e 100644
--- a/drivers/tty/serial/suncore.c
+++ b/drivers/tty/serial/suncore.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* suncore.c
  *
  * Common SUN serial routines.  Based entirely
diff --git a/drivers/tty/serial/sunhv.c b/drivers/tty/serial/sunhv.c
index 46e46894e918..63e34d868de8 100644
--- a/drivers/tty/serial/sunhv.c
+++ b/drivers/tty/serial/sunhv.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sunhv.c: Serial driver for SUN4V hypervisor console.
  *
  * Copyright (C) 2006, 2007 David S. Miller (davem@davemloft.net)
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 653a076d89d3..b93d0225f8c9 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sunsab.c: ASYNC Driver for the SIEMENS SAB82532 DUSCC.
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
diff --git a/drivers/tty/serial/sunsab.h b/drivers/tty/serial/sunsab.h
index b78e1f7b8050..1644031aacda 100644
--- a/drivers/tty/serial/sunsab.h
+++ b/drivers/tty/serial/sunsab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sunsab.h: Register Definitions for the Siemens SAB82532 DUSCC
  *
  * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 95d34d7565c9..6cf3e9b0728f 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * su.c: Small serial driver for keyboard/mouse interface on sparc32/PCI
  *
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 252cea49c068..bc7af8b08a72 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sunzilog.c: Zilog serial driver for Sparc systems.
  *
  * Driver for Zilog serial chips found on Sun workstations and
diff --git a/drivers/tty/serial/sunzilog.h b/drivers/tty/serial/sunzilog.h
index 5dec7b47cc38..6d6764f0ac98 100644
--- a/drivers/tty/serial/sunzilog.h
+++ b/drivers/tty/serial/sunzilog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SUNZILOG_H
 #define _SUNZILOG_H
 
diff --git a/drivers/tty/serial/tilegx.c b/drivers/tty/serial/tilegx.c
index 453215f5420d..f0a3ae57f881 100644
--- a/drivers/tty/serial/tilegx.c
+++ b/drivers/tty/serial/tilegx.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2013 Tilera Corporation. All Rights Reserved.
  *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- *
  * TILEGx UART driver.
  */
 
diff --git a/drivers/tty/serial/timbuart.c b/drivers/tty/serial/timbuart.c
index 5da7fe40e391..19d38b504e27 100644
--- a/drivers/tty/serial/timbuart.c
+++ b/drivers/tty/serial/timbuart.c
@@ -1,19 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * timbuart.c timberdale FPGA UART driver
  * Copyright (c) 2009 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* Supports:
diff --git a/drivers/tty/serial/timbuart.h b/drivers/tty/serial/timbuart.h
index 7e566766bc43..fb00b172117d 100644
--- a/drivers/tty/serial/timbuart.h
+++ b/drivers/tty/serial/timbuart.h
@@ -1,19 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * timbuart.c timberdale FPGA GPIO driver
  * Copyright (c) 2009 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* Supports:
diff --git a/drivers/tty/serial/uartlite.c b/drivers/tty/serial/uartlite.c
index c9b8d702dadc..c47db7826189 100644
--- a/drivers/tty/serial/uartlite.c
+++ b/drivers/tty/serial/uartlite.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * uartlite.c: Serial driver for Xilinx uartlite serial controller
  *
  * Copyright (C) 2006 Peter Korsgaard <jacmet@sunsite.dk>
  * Copyright (C) 2007 Secret Lab Technologies Ltd.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2.  This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/platform_device.h>
@@ -739,7 +736,7 @@ static int __init ulite_init(void)
 err_plat:
 	uart_unregister_driver(&ulite_uart_driver);
 err_uart:
-	pr_err("registering uartlite driver failed: err=%i", ret);
+	pr_err("registering uartlite driver failed: err=%i\n", ret);
 	return ret;
 }
 
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 55b702775786..2b6376e6e5ad 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Freescale QUICC Engine UART device driver
  *
  * Author: Timur Tabi <timur@freescale.com>
  *
- * Copyright 2007 Freescale Semiconductor, Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
+ * Copyright 2007 Freescale Semiconductor, Inc.
  *
  * This driver adds support for UART devices via Freescale's QUICC Engine
  * found on some Freescale SOCs.
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index 439057e8107a..6d106e33f842 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  Driver for NEC VR4100 series Serial Interface Unit.
  *
  *  Copyright (C) 2004-2008  Yoichi Yuasa <yuasa@linux-mips.org>
  *
  *  Based on drivers/serial/8250.c, by Russell King.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #if defined(CONFIG_SERIAL_VR41XX_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/vt8500_serial.c b/drivers/tty/serial/vt8500_serial.c
index 435a6f3260be..3d58e9b34553 100644
--- a/drivers/tty/serial/vt8500_serial.c
+++ b/drivers/tty/serial/vt8500_serial.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2010 Alexey Charkov <alchark@gmail.com>
  *
  * Based on msm_serial.c, which is:
  * Copyright (C) 2007 Google, Inc.
  * Author: Robert Love <rlove@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #if defined(CONFIG_SERIAL_VT8500_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 31a630ae0870..b9b2bc76bcac 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Cadence UART driver (found in Xilinx Zynq)
  *
  * 2011 - 2014 (C) Xilinx Inc.
  *
- * This program is free software; you can redistribute it
- * and/or modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation;
- * either version 2 of the License, or (at your option) any
- * later version.
- *
  * This driver has originally been pushed by Xilinx using a Zynq-branding. This
  * still shows in the naming of this file, the kconfig symbols and some symbols
  * in the code.
@@ -1673,7 +1668,7 @@ static void __exit cdns_uart_exit(void)
 	uart_unregister_driver(&cdns_uart_uart_driver);
 }
 
-module_init(cdns_uart_init);
+arch_initcall(cdns_uart_init);
 module_exit(cdns_uart_exit);
 
 MODULE_DESCRIPTION("Driver for Cadence UART");
diff --git a/drivers/tty/serial/zs.c b/drivers/tty/serial/zs.c
index d32bd499d684..b03d3e458ea2 100644
--- a/drivers/tty/serial/zs.c
+++ b/drivers/tty/serial/zs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * zs.c: Serial port driver for IOASIC DECstations.
  *
diff --git a/drivers/tty/serial/zs.h b/drivers/tty/serial/zs.h
index aa921b57d827..26ef8eafa1c1 100644
--- a/drivers/tty/serial/zs.h
+++ b/drivers/tty/serial/zs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zs.h: Definitions for the DECstation Z85C30 serial driver.
  *
diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index 3be981101297..f2c34d656144 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * $Id: synclink.c,v 4.38 2005/11/07 16:30:34 paulkf Exp $
  *
@@ -13,8 +14,6 @@
  *
  * Original release 01/11/99
  *
- * This code is released under the GNU General Public License (GPL)
- *
  * This driver is primarily intended for use in synchronous
  * HDLC mode. Asynchronous mode is also provided.
  *
@@ -4098,8 +4097,7 @@ static int mgsl_claim_resources(struct mgsl_struct *info)
 		if (request_dma(info->dma_level,info->device_name) < 0){
 			printk( "%s(%d):Can't request DMA channel on device %s DMA=%d\n",
 				__FILE__,__LINE__,info->device_name, info->dma_level );
-			mgsl_release_resources( info );
-			return -ENODEV;
+			goto errout;
 		}
 		info->dma_requested = true;
 
diff --git a/drivers/tty/synclink_gt.c b/drivers/tty/synclink_gt.c
index 636b8ae29b46..06a03731bba7 100644
--- a/drivers/tty/synclink_gt.c
+++ b/drivers/tty/synclink_gt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Device driver for Microgate SyncLink GT serial adapters.
  *
@@ -6,8 +7,6 @@
  *
  * Microgate and SyncLink are trademarks of Microgate Corporation
  *
- * This code is released under the GNU General Public License (GPL)
- *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
diff --git a/drivers/tty/synclinkmp.c b/drivers/tty/synclinkmp.c
index 4fed9e7b281f..d45f234e1914 100644
--- a/drivers/tty/synclinkmp.c
+++ b/drivers/tty/synclinkmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * $Id: synclinkmp.c,v 4.38 2005/07/15 13:29:44 paulkf Exp $
  *
@@ -10,7 +11,6 @@
  * Microgate and SyncLink are trademarks of Microgate Corporation
  *
  * Derived from serial.c written by Theodore Ts'o and Linus Torvalds
- * This code is released under the GNU General Public License (GPL)
  *
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 3ffc1ce29023..b674793be478 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Linux Magic System Request Key Hacks
  *
@@ -245,8 +246,10 @@ static void sysrq_handle_showallcpus(int key)
 	 * architecture has no support for it:
 	 */
 	if (!trigger_all_cpu_backtrace()) {
-		struct pt_regs *regs = get_irq_regs();
+		struct pt_regs *regs = NULL;
 
+		if (in_irq())
+			regs = get_irq_regs();
 		if (regs) {
 			pr_info("CPU%d:\n", smp_processor_id());
 			show_regs(regs);
@@ -265,7 +268,10 @@ static struct sysrq_key_op sysrq_showallcpus_op = {
 
 static void sysrq_handle_showregs(int key)
 {
-	struct pt_regs *regs = get_irq_regs();
+	struct pt_regs *regs = NULL;
+
+	if (in_irq())
+		regs = get_irq_regs();
 	if (regs)
 		show_regs(regs);
 	perf_event_print_debug();
@@ -648,9 +654,9 @@ static void sysrq_parse_reset_sequence(struct sysrq_state *state)
 	state->reset_seq_version = sysrq_reset_seq_version;
 }
 
-static void sysrq_do_reset(unsigned long _state)
+static void sysrq_do_reset(struct timer_list *t)
 {
-	struct sysrq_state *state = (struct sysrq_state *) _state;
+	struct sysrq_state *state = from_timer(state, t, keyreset_timer);
 
 	state->reset_requested = true;
 
@@ -667,7 +673,7 @@ static void sysrq_handle_reset_request(struct sysrq_state *state)
 		mod_timer(&state->keyreset_timer,
 			jiffies + msecs_to_jiffies(sysrq_reset_downtime_ms));
 	else
-		sysrq_do_reset((unsigned long)state);
+		sysrq_do_reset(&state->keyreset_timer);
 }
 
 static void sysrq_detect_reset_sequence(struct sysrq_state *state,
@@ -903,8 +909,7 @@ static int sysrq_connect(struct input_handler *handler,
 	sysrq->handle.handler = handler;
 	sysrq->handle.name = "sysrq";
 	sysrq->handle.private = sysrq;
-	setup_timer(&sysrq->keyreset_timer,
-		    sysrq_do_reset, (unsigned long)sysrq);
+	timer_setup(&sysrq->keyreset_timer, sysrq_do_reset, 0);
 
 	error = input_register_handle(&sysrq->handle);
 	if (error) {
diff --git a/drivers/tty/tty_audit.c b/drivers/tty/tty_audit.c
index df2d735338e2..e30aa6bf9ff9 100644
--- a/drivers/tty/tty_audit.c
+++ b/drivers/tty/tty_audit.c
@@ -1,10 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Creating audit events from TTY input.
  *
- * Copyright (C) 2007 Red Hat, Inc.  All rights reserved.  This copyrighted
- * material is made available to anyone wishing to use, modify, copy, or
- * redistribute it subject to the terms and conditions of the GNU General
- * Public License v.2.
+ * Copyright (C) 2007 Red Hat, Inc.  All rights reserved.
  *
  * Authors: Miloslav Trmac <mitr@redhat.com>
  */
diff --git a/drivers/tty/tty_baudrate.c b/drivers/tty/tty_baudrate.c
index 5c33fd25676d..6ff8cdfc9d2a 100644
--- a/drivers/tty/tty_baudrate.c
+++ b/drivers/tty/tty_baudrate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
  */
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c
index f8eba1c5412f..c996b6859c5e 100644
--- a/drivers/tty/tty_buffer.c
+++ b/drivers/tty/tty_buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tty buffer allocation management
  */
@@ -446,7 +447,7 @@ EXPORT_SYMBOL_GPL(tty_prepare_flip_string);
  *	Callers other than flush_to_ldisc() need to exclude the kworker
  *	from concurrent use of the line discipline, see paste_selection().
  *
- *	Returns the number of bytes not processed
+ *	Returns the number of bytes processed
  */
 int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
 			  char *f, int count)
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 94cccb6efa32..dc60aeea87d8 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  */
diff --git a/drivers/tty/tty_ioctl.c b/drivers/tty/tty_ioctl.c
index efa96e6c4c1b..d9b561d89432 100644
--- a/drivers/tty/tty_ioctl.c
+++ b/drivers/tty/tty_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992, 1993, 1994  Linus Torvalds
  *
diff --git a/drivers/tty/tty_jobctrl.c b/drivers/tty/tty_jobctrl.c
index e7032309ee87..c4ecd66fafef 100644
--- a/drivers/tty/tty_jobctrl.c
+++ b/drivers/tty/tty_jobctrl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  */
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 2fe216b276e2..24ec5c7e6b20 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/kmod.h>
@@ -694,10 +695,8 @@ int tty_ldisc_reinit(struct tty_struct *tty, int disc)
 	tty_set_termios_ldisc(tty, disc);
 	retval = tty_ldisc_open(tty, tty->ldisc);
 	if (retval) {
-		if (!WARN_ON(disc == N_TTY)) {
-			tty_ldisc_put(tty->ldisc);
-			tty->ldisc = NULL;
-		}
+		tty_ldisc_put(tty->ldisc);
+		tty->ldisc = NULL;
 	}
 	return retval;
 }
@@ -752,8 +751,9 @@ void tty_ldisc_hangup(struct tty_struct *tty, bool reinit)
 
 	if (tty->ldisc) {
 		if (reinit) {
-			if (tty_ldisc_reinit(tty, tty->termios.c_line) < 0)
-				tty_ldisc_reinit(tty, N_TTY);
+			if (tty_ldisc_reinit(tty, tty->termios.c_line) < 0 &&
+			    tty_ldisc_reinit(tty, N_TTY) < 0)
+				WARN_ON(tty_ldisc_reinit(tty, N_NULL) < 0);
 		} else
 			tty_ldisc_kill(tty);
 	}
diff --git a/drivers/tty/tty_ldsem.c b/drivers/tty/tty_ldsem.c
index 52b7baef4f7a..37a91b3df980 100644
--- a/drivers/tty/tty_ldsem.c
+++ b/drivers/tty/tty_ldsem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ldisc rw semaphore
  *
@@ -22,9 +23,6 @@
  * Michel Lespinasse <walken@google.com>.
  *
  * Copyright (C) 2013 Peter Hurley <peter@hurleysoftware.com>
- *
- * This file may be redistributed under the terms of the GNU General Public
- * License v2.
  */
 
 #include <linux/list.h>
diff --git a/drivers/tty/tty_mutex.c b/drivers/tty/tty_mutex.c
index d8bae67a6174..2640635ee177 100644
--- a/drivers/tty/tty_mutex.c
+++ b/drivers/tty/tty_mutex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/tty.h>
 #include <linux/module.h>
 #include <linux/kallsyms.h>
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 6b137194069f..25d736880013 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tty port functions
  */
@@ -78,7 +79,7 @@ EXPORT_SYMBOL(tty_port_init);
  * @driver: tty_driver for this device
  * @index: index of the tty
  *
- * Provide the tty layer wit ha link from a tty (specified by @index) to a
+ * Provide the tty layer with a link from a tty (specified by @index) to a
  * tty_port (@port). Use this only if neither tty_port_register_device nor
  * tty_port_install is used in the driver. If used, this has to be called before
  * tty_register_driver.
@@ -235,7 +236,7 @@ EXPORT_SYMBOL(tty_port_free_xmit_buf);
 
 /**
  * tty_port_destroy -- destroy inited port
- * @port: tty port to be doestroyed
+ * @port: tty port to be destroyed
  *
  * When a port was initialized using tty_port_init, one has to destroy the
  * port by this function. Either indirectly by using tty_port refcounting
diff --git a/drivers/tty/vcc.c b/drivers/tty/vcc.c
index ef01d24858cd..58b454c34560 100644
--- a/drivers/tty/vcc.c
+++ b/drivers/tty/vcc.c
@@ -361,17 +361,13 @@ done:
 	return rv;
 }
 
-static void vcc_rx_timer(unsigned long index)
+static void vcc_rx_timer(struct timer_list *t)
 {
+	struct vcc_port *port = from_timer(port, t, rx_timer);
 	struct vio_driver_state *vio;
-	struct vcc_port *port;
 	unsigned long flags;
 	int rv;
 
-	port = vcc_get_ne(index);
-	if (!port)
-		return;
-
 	spin_lock_irqsave(&port->lock, flags);
 	port->rx_timer.expires = 0;
 
@@ -391,18 +387,14 @@ done:
 	vcc_put(port, false);
 }
 
-static void vcc_tx_timer(unsigned long index)
+static void vcc_tx_timer(struct timer_list *t)
 {
-	struct vcc_port *port;
+	struct vcc_port *port = from_timer(port, t, tx_timer);
 	struct vio_vcc *pkt;
 	unsigned long flags;
 	int tosend = 0;
 	int rv;
 
-	port = vcc_get_ne(index);
-	if (!port)
-		return;
-
 	spin_lock_irqsave(&port->lock, flags);
 	port->tx_timer.expires = 0;
 
@@ -645,13 +637,8 @@ static int vcc_probe(struct vio_dev *vdev, const struct vio_device_id *id)
 	if (rv)
 		goto free_domain;
 
-	init_timer(&port->rx_timer);
-	port->rx_timer.function = vcc_rx_timer;
-	port->rx_timer.data = port->index;
-
-	init_timer(&port->tx_timer);
-	port->tx_timer.function = vcc_tx_timer;
-	port->tx_timer.data = port->index;
+	timer_setup(&port->rx_timer, vcc_rx_timer, 0);
+	timer_setup(&port->tx_timer, vcc_tx_timer, 0);
 
 	dev_set_drvdata(&vdev->dev, port);
 
diff --git a/drivers/tty/vt/Makefile b/drivers/tty/vt/Makefile
index 17ae94cb29f8..edbbe0ccdb83 100644
--- a/drivers/tty/vt/Makefile
+++ b/drivers/tty/vt/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # This file contains the font map for the default (hardware) font
 #
diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index a5f88cf0f61d..722a6690c70d 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * consolemap.c
  *
diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index f4166263bb3a..c8d90d7e7e37 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Written for linux by Johan Myreen as a translation from
  * the assembly version by Linus (with diacriticals added)
@@ -250,7 +251,7 @@ static void kd_nosound(unsigned long ignored)
 	input_handler_for_each_handle(&kbd_handler, &zero, kd_sound_helper);
 }
 
-static DEFINE_TIMER(kd_mksound_timer, kd_nosound, 0, 0);
+static DEFINE_TIMER(kd_mksound_timer, kd_nosound);
 
 void kd_mksound(unsigned int hz, unsigned int ticks)
 {
diff --git a/drivers/tty/vt/selection.c b/drivers/tty/vt/selection.c
index accbd1257bc4..7a4c8022c023 100644
--- a/drivers/tty/vt/selection.c
+++ b/drivers/tty/vt/selection.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This module exports the functions:
  *
diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c
index 56dcff6059d3..85b6634f518a 100644
--- a/drivers/tty/vt/vc_screen.c
+++ b/drivers/tty/vt/vc_screen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Provide access to virtual console memory.
  * /dev/vcs0: the screen as it is being viewed right now (possibly scrolled)
diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 2ebaba16f785..bce4c71cb338 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1991, 1992  Linus Torvalds
  */
@@ -102,6 +103,7 @@
 #include <linux/uaccess.h>
 #include <linux/kdb.h>
 #include <linux/ctype.h>
+#include <linux/bsearch.h>
 
 #define MAX_NR_CON_DRIVER 16
 
@@ -228,7 +230,7 @@ static int scrollback_delta;
  */
 int (*console_blank_hook)(int);
 
-static DEFINE_TIMER(console_timer, blank_screen_t, 0, 0);
+static DEFINE_TIMER(console_timer, blank_screen_t);
 static int blank_state;
 static int blank_timer_expired;
 enum {
@@ -2142,22 +2144,15 @@ struct interval {
 	uint32_t last;
 };
 
-static int bisearch(uint32_t ucs, const struct interval *table, int max)
+static int ucs_cmp(const void *key, const void *elt)
 {
-	int min = 0;
-	int mid;
+	uint32_t ucs = *(uint32_t *)key;
+	struct interval e = *(struct interval *) elt;
 
-	if (ucs < table[0].first || ucs > table[max].last)
-		return 0;
-	while (max >= min) {
-		mid = (min + max) / 2;
-		if (ucs > table[mid].last)
-			min = mid + 1;
-		else if (ucs < table[mid].first)
-			max = mid - 1;
-		else
-			return 1;
-	}
+	if (ucs > e.last)
+		return 1;
+	else if (ucs < e.first)
+		return -1;
 	return 0;
 }
 
@@ -2169,7 +2164,12 @@ static int is_double_width(uint32_t ucs)
 		{ 0xFE10, 0xFE19 }, { 0xFE30, 0xFE6F }, { 0xFF00, 0xFF60 },
 		{ 0xFFE0, 0xFFE6 }, { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD }
 	};
-	return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1);
+	if (ucs < double_width[0].first ||
+	    ucs > double_width[ARRAY_SIZE(double_width) - 1].last)
+		return 0;
+
+	return bsearch(&ucs, double_width, ARRAY_SIZE(double_width),
+			sizeof(struct interval), ucs_cmp) != NULL;
 }
 
 static void con_flush(struct vc_data *vc, unsigned long draw_from,
@@ -2205,7 +2205,7 @@ static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int co
 	console_lock();
 	vc = tty->driver_data;
 	if (vc == NULL) {
-		printk(KERN_ERR "vt: argh, driver_data is NULL !\n");
+		pr_err("vt: argh, driver_data is NULL !\n");
 		console_unlock();
 		return 0;
 	}
@@ -3190,20 +3190,21 @@ static int do_bind_con_driver(const struct consw *csw, int first, int last,
 
 	pr_info("Console: switching ");
 	if (!deflt)
-		printk(KERN_CONT "consoles %d-%d ", first+1, last+1);
+		pr_cont("consoles %d-%d ", first + 1, last + 1);
 	if (j >= 0) {
 		struct vc_data *vc = vc_cons[j].d;
 
-		printk(KERN_CONT "to %s %s %dx%d\n",
-		       vc->vc_can_do_color ? "colour" : "mono",
-		       desc, vc->vc_cols, vc->vc_rows);
+		pr_cont("to %s %s %dx%d\n",
+			vc->vc_can_do_color ? "colour" : "mono",
+			desc, vc->vc_cols, vc->vc_rows);
 
 		if (k >= 0) {
 			vc = vc_cons[k].d;
 			update_screen(vc);
 		}
-	} else
-		printk(KERN_CONT "to %s\n", desc);
+	} else {
+		pr_cont("to %s\n", desc);
+	}
 
 	retval = 0;
 err:
@@ -3622,9 +3623,8 @@ static int do_register_con_driver(const struct consw *csw, int first, int last)
 					  con_driver, con_dev_groups,
 					  "vtcon%i", con_driver->node);
 	if (IS_ERR(con_driver->dev)) {
-		printk(KERN_WARNING "Unable to create device for %s; "
-		       "errno = %ld\n", con_driver->desc,
-		       PTR_ERR(con_driver->dev));
+		pr_warn("Unable to create device for %s; errno = %ld\n",
+			con_driver->desc, PTR_ERR(con_driver->dev));
 		con_driver->dev = NULL;
 	} else {
 		vtconsole_init_device(con_driver);
@@ -3761,8 +3761,8 @@ static int __init vtconsole_class_init(void)
 
 	vtconsole_class = class_create(THIS_MODULE, "vtconsole");
 	if (IS_ERR(vtconsole_class)) {
-		printk(KERN_WARNING "Unable to create vt console class; "
-		       "errno = %ld\n", PTR_ERR(vtconsole_class));
+		pr_warn("Unable to create vt console class; errno = %ld\n",
+			PTR_ERR(vtconsole_class));
 		vtconsole_class = NULL;
 	}
 
@@ -3778,9 +3778,8 @@ static int __init vtconsole_class_init(void)
 							  "vtcon%i", con->node);
 
 			if (IS_ERR(con->dev)) {
-				printk(KERN_WARNING "Unable to create "
-				       "device for %s; errno = %ld\n",
-				       con->desc, PTR_ERR(con->dev));
+				pr_warn("Unable to create device for %s; errno = %ld\n",
+					con->desc, PTR_ERR(con->dev));
 				con->dev = NULL;
 			} else {
 				vtconsole_init_device(con);
@@ -4121,37 +4120,45 @@ static int con_font_set(struct vc_data *vc, struct console_font_op *op)
 		return -EINVAL;
 	if (op->charcount > 512)
 		return -EINVAL;
+	if (op->width <= 0 || op->width > 32 || op->height > 32)
+		return -EINVAL;
+	size = (op->width+7)/8 * 32 * op->charcount;
+	if (size > max_font_size)
+		return -ENOSPC;
+
+	font.data = memdup_user(op->data, size);
+	if (IS_ERR(font.data))
+		return PTR_ERR(font.data);
+
 	if (!op->height) {		/* Need to guess font height [compat] */
 		int h, i;
-		u8 __user *charmap = op->data;
-		u8 tmp;
-		
-		/* If from KDFONTOP ioctl, don't allow things which can be done in userland,
-		   so that we can get rid of this soon */
-		if (!(op->flags & KD_FONT_FLAG_OLD))
+		u8 *charmap = font.data;
+
+		/*
+		 * If from KDFONTOP ioctl, don't allow things which can be done
+		 * in userland,so that we can get rid of this soon
+		 */
+		if (!(op->flags & KD_FONT_FLAG_OLD)) {
+			kfree(font.data);
 			return -EINVAL;
+		}
+
 		for (h = 32; h > 0; h--)
-			for (i = 0; i < op->charcount; i++) {
-				if (get_user(tmp, &charmap[32*i+h-1]))
-					return -EFAULT;
-				if (tmp)
+			for (i = 0; i < op->charcount; i++)
+				if (charmap[32*i+h-1])
 					goto nonzero;
-			}
+
+		kfree(font.data);
 		return -EINVAL;
+
 	nonzero:
 		op->height = h;
 	}
-	if (op->width <= 0 || op->width > 32 || op->height > 32)
-		return -EINVAL;
-	size = (op->width+7)/8 * 32 * op->charcount;
-	if (size > max_font_size)
-		return -ENOSPC;
+
 	font.charcount = op->charcount;
-	font.height = op->height;
 	font.width = op->width;
-	font.data = memdup_user(op->data, size);
-	if (IS_ERR(font.data))
-		return PTR_ERR(font.data);
+	font.height = op->height;
+
 	console_lock();
 	if (vc->vc_mode != KD_TEXT)
 		rc = -EINVAL;
diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c
index 96d389cb506c..2d2b420598b2 100644
--- a/drivers/tty/vt/vt_ioctl.c
+++ b/drivers/tty/vt/vt_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1992 obz under the linux copyright
  *
diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile
index e9663bb8a4c7..c285dd2a4539 100644
--- a/drivers/uio/Makefile
+++ b/drivers/uio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_UIO)	+= uio.o
 obj-$(CONFIG_UIO_CIF)	+= uio_cif.o
 obj-$(CONFIG_UIO_PDRV_GENIRQ)	+= uio_pdrv_genirq.o
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 939a63bca82f..f699abab1787 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -77,11 +77,12 @@ config USB_PCI
 	depends on PCI
 	default y
 	---help---
-	  A lot of embeded system SOC (e.g. freescale T2080) have both
-	  PCI and USB modules. But USB module is controlled by registers
-	  directly, it have no relationship with PCI module.
+	  Many embedded system SOCs (e.g. freescale T2080) have both
+	  PCI and USB modules with the USB module directly controlled by
+	  registers and having no relationship to the PCI module.
 
-	  When say N here it will not build PCI related code in USB driver.
+	  If you have such a device you may say N here and PCI related code
+	  will not be built in the USB driver.
 
 if USB
 
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 9650b351c26c..060643a1b5c8 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel USB device drivers.
 #
diff --git a/drivers/usb/atm/Makefile b/drivers/usb/atm/Makefile
index ac278946b06c..7ac65ce1aa8a 100644
--- a/drivers/usb/atm/Makefile
+++ b/drivers/usb/atm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB ATM/xDSL drivers
 #
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index 5160a4a966b3..6470d259b7d8 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /******************************************************************************
  *  cxacru.c  -  driver for USB ADSL modems based on
  *               Conexant AccessRunner chipset
@@ -6,21 +7,6 @@
  *  Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
  *  Copyright (C) 2007 Simon Arlott
  *  Copyright (C) 2009 Simon Arlott
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the Free
- *  Software Foundation; either version 2 of the License, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- *  more details.
- *
- *  You should have received a copy of the GNU General Public License along with
- *  this program; if not, write to the Free Software Foundation, Inc., 59
- *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
  ******************************************************************************/
 
 /*
@@ -424,6 +410,7 @@ static ssize_t cxacru_sysfs_store_adsl_state(struct device *dev,
 		case CXPOLL_STOPPING:
 			/* abort stop request */
 			instance->poll_state = CXPOLL_POLLING;
+			/* fall through */
 		case CXPOLL_POLLING:
 		case CXPOLL_SHUTDOWN:
 			/* don't start polling */
@@ -570,10 +557,8 @@ static int cxacru_start_wait_urb(struct urb *urb, struct completion *done,
 {
 	struct timer_list timer;
 
-	init_timer(&timer);
+	setup_timer(&timer, cxacru_timeout_kill, (unsigned long)urb);
 	timer.expires = jiffies + msecs_to_jiffies(CMD_TIMEOUT);
-	timer.data = (unsigned long) urb;
-	timer.function = cxacru_timeout_kill;
 	add_timer(&timer);
 	wait_for_completion(done);
 	del_timer_sync(&timer);
@@ -797,6 +782,7 @@ static int cxacru_atm_start(struct usbatm_data *usbatm_instance,
 	case CXPOLL_STOPPING:
 		/* abort stop request */
 		instance->poll_state = CXPOLL_POLLING;
+		/* fall through */
 	case CXPOLL_POLLING:
 	case CXPOLL_SHUTDOWN:
 		/* don't start polling */
diff --git a/drivers/usb/atm/speedtch.c b/drivers/usb/atm/speedtch.c
index 3676adb40d89..5a5e8c0aaa39 100644
--- a/drivers/usb/atm/speedtch.c
+++ b/drivers/usb/atm/speedtch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /******************************************************************************
  *  speedtch.c  -  Alcatel SpeedTouch USB xDSL modem driver
  *
@@ -6,21 +7,6 @@
  *  Copyright (C) 2004, David Woodhouse
  *
  *  Based on "modem_run.c", copyright (C) 2001, Benoit Papillault
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the Free
- *  Software Foundation; either version 2 of the License, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- *  more details.
- *
- *  You should have received a copy of the GNU General Public License along with
- *  this program; if not, write to the Free Software Foundation, Inc., 59
- *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
  ******************************************************************************/
 
 #include <asm/page.h>
@@ -874,16 +860,13 @@ static int speedtch_bind(struct usbatm_data *usbatm,
 	usbatm->flags |= (use_isoc ? UDSL_USE_ISOC : 0);
 
 	INIT_WORK(&instance->status_check_work, speedtch_check_status);
-	init_timer(&instance->status_check_timer);
-
-	instance->status_check_timer.function = speedtch_status_poll;
-	instance->status_check_timer.data = (unsigned long)instance;
+	setup_timer(&instance->status_check_timer, speedtch_status_poll,
+		    (unsigned long)instance);
 	instance->last_status = 0xff;
 	instance->poll_delay = MIN_POLL_DELAY;
 
-	init_timer(&instance->resubmit_timer);
-	instance->resubmit_timer.function = speedtch_resubmit_int;
-	instance->resubmit_timer.data = (unsigned long)instance;
+	setup_timer(&instance->resubmit_timer, speedtch_resubmit_int,
+		    (unsigned long)instance);
 
 	instance->int_urb = usb_alloc_urb(0, GFP_KERNEL);
 
diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c
index ba7616395db2..ab75690044bb 100644
--- a/drivers/usb/atm/ueagle-atm.c
+++ b/drivers/usb/atm/ueagle-atm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*-
  * Copyright (c) 2003, 2004
  *	Damien Bergamini <damien.bergamini@free.fr>. All rights reserved.
diff --git a/drivers/usb/atm/usbatm.c b/drivers/usb/atm/usbatm.c
index 8607af758bbd..044264aa1f96 100644
--- a/drivers/usb/atm/usbatm.c
+++ b/drivers/usb/atm/usbatm.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /******************************************************************************
  *  usbatm.c - Generic USB xDSL driver core
  *
  *  Copyright (C) 2001, Alcatel
  *  Copyright (C) 2003, Duncan Sands, SolNegro, Josep Comas
  *  Copyright (C) 2004, David Woodhouse, Roman Kagan
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the Free
- *  Software Foundation; either version 2 of the License, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- *  more details.
- *
- *  You should have received a copy of the GNU General Public License along with
- *  this program; if not, write to the Free Software Foundation, Inc., 59
- *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
  ******************************************************************************/
 
 /*
diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h
index f3eecd967a8a..d3bdc4cc47aa 100644
--- a/drivers/usb/atm/usbatm.h
+++ b/drivers/usb/atm/usbatm.h
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /******************************************************************************
  *  usbatm.h - Generic USB xDSL driver core
  *
  *  Copyright (C) 2001, Alcatel
  *  Copyright (C) 2003, Duncan Sands, SolNegro, Josep Comas
  *  Copyright (C) 2004, David Woodhouse
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the Free
- *  Software Foundation; either version 2 of the License, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- *  more details.
- *
- *  You should have received a copy of the GNU General Public License along with
- *  this program; if not, write to the Free Software Foundation, Inc., 59
- *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
  ******************************************************************************/
 
 #ifndef	_USBATM_H_
diff --git a/drivers/usb/atm/xusbatm.c b/drivers/usb/atm/xusbatm.c
index c73c1ec3005e..ffc9810070a3 100644
--- a/drivers/usb/atm/xusbatm.c
+++ b/drivers/usb/atm/xusbatm.c
@@ -1,22 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /******************************************************************************
  *  xusbatm.c -	dumb usbatm-based driver for modems initialized in userspace
  *
  *  Copyright (C) 2005 Duncan Sands, Roman Kagan (rkagan % mail ! ru)
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License as published by the Free
- *  Software Foundation; either version 2 of the License, or (at your option)
- *  any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- *  more details.
- *
- *  You should have received a copy of the GNU General Public License along with
- *  this program; if not, write to the Free Software Foundation, Inc., 59
- *  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
  ******************************************************************************/
 
 #include <linux/module.h>
diff --git a/drivers/usb/c67x00/Makefile b/drivers/usb/c67x00/Makefile
index da5f314a5de0..0cde62d06e5d 100644
--- a/drivers/usb/c67x00/Makefile
+++ b/drivers/usb/c67x00/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Cypress C67X00 USB Controller
 #
diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c
index 5796c8820514..53838e7d4eef 100644
--- a/drivers/usb/c67x00/c67x00-drv.c
+++ b/drivers/usb/c67x00/c67x00-drv.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * c67x00-drv.c: Cypress C67X00 USB Common infrastructure
  *
  * Copyright (C) 2006-2008 Barco N.V.
  *    Derived from the Cypress cy7c67200/300 ezusb linux driver and
  *    based on multiple host controller drivers inside the linux kernel.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301  USA.
  */
 
 /*
diff --git a/drivers/usb/c67x00/c67x00-hcd.c b/drivers/usb/c67x00/c67x00-hcd.c
index 30d3f346686e..c39eee17c0e4 100644
--- a/drivers/usb/c67x00/c67x00-hcd.c
+++ b/drivers/usb/c67x00/c67x00-hcd.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * c67x00-hcd.c: Cypress C67X00 USB Host Controller Driver
  *
  * Copyright (C) 2006-2008 Barco N.V.
  *    Derived from the Cypress cy7c67200/300 ezusb linux driver and
  *    based on multiple host controller drivers inside the linux kernel.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301  USA.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/c67x00/c67x00-hcd.h b/drivers/usb/c67x00/c67x00-hcd.h
index cf8a455a6403..3b181d4c7a03 100644
--- a/drivers/usb/c67x00/c67x00-hcd.h
+++ b/drivers/usb/c67x00/c67x00-hcd.h
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * c67x00-hcd.h: Cypress C67X00 USB HCD
  *
  * Copyright (C) 2006-2008 Barco N.V.
  *    Derived from the Cypress cy7c67200/300 ezusb linux driver and
  *    based on multiple host controller drivers inside the linux kernel.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301  USA.
  */
 
 #ifndef _USB_C67X00_HCD_H
diff --git a/drivers/usb/c67x00/c67x00-ll-hpi.c b/drivers/usb/c67x00/c67x00-ll-hpi.c
index b58151841e10..e1fe3603140a 100644
--- a/drivers/usb/c67x00/c67x00-ll-hpi.c
+++ b/drivers/usb/c67x00/c67x00-ll-hpi.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * c67x00-ll-hpi.c: Cypress C67X00 USB Low level interface using HPI
  *
  * Copyright (C) 2006-2008 Barco N.V.
  *    Derived from the Cypress cy7c67200/300 ezusb linux driver and
  *    based on multiple host controller drivers inside the linux kernel.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301  USA.
  */
 
 #include <asm/byteorder.h>
diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c
index 7311ed61e99a..633c52de3bb3 100644
--- a/drivers/usb/c67x00/c67x00-sched.c
+++ b/drivers/usb/c67x00/c67x00-sched.c
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * c67x00-sched.c: Cypress C67X00 USB Host Controller Driver - TD scheduling
  *
  * Copyright (C) 2006-2008 Barco N.V.
  *    Derived from the Cypress cy7c67200/300 ezusb linux driver and
  *    based on multiple host controller drivers inside the linux kernel.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301  USA.
  */
 
 #include <linux/kthread.h>
@@ -966,13 +952,11 @@ static void c67x00_handle_successful_td(struct c67x00_hcd *c67x00,
 static void c67x00_handle_isoc(struct c67x00_hcd *c67x00, struct c67x00_td *td)
 {
 	struct urb *urb = td->urb;
-	struct c67x00_urb_priv *urbp;
 	int cnt;
 
 	if (!urb)
 		return;
 
-	urbp = urb->hcpriv;
 	cnt = td->privdata;
 
 	if (td->status & TD_ERROR_MASK)
diff --git a/drivers/usb/c67x00/c67x00.h b/drivers/usb/c67x00/c67x00.h
index a26e9ded0f32..7ce10928b037 100644
--- a/drivers/usb/c67x00/c67x00.h
+++ b/drivers/usb/c67x00/c67x00.h
@@ -1,24 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * c67x00.h: Cypress C67X00 USB register and field definitions
  *
  * Copyright (C) 2006-2008 Barco N.V.
  *    Derived from the Cypress cy7c67200/300 ezusb linux driver and
  *    based on multiple host controller drivers inside the linux kernel.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA  02110-1301  USA.
  */
 
 #ifndef _USB_C67X00_H
diff --git a/drivers/usb/chipidea/Kconfig b/drivers/usb/chipidea/Kconfig
index 51f4157bbecf..785f0ed037f7 100644
--- a/drivers/usb/chipidea/Kconfig
+++ b/drivers/usb/chipidea/Kconfig
@@ -9,7 +9,7 @@ config USB_CHIPIDEA
 	  Dual-role switch (ID, OTG FSM, sysfs), Host-only, and
 	  Peripheral-only.
 
-	  When compiled dynamically, the module will be called ci-hdrc.ko.
+	  When compiled dynamically, the module will be called ci_hdrc.ko.
 
 if USB_CHIPIDEA
 
diff --git a/drivers/usb/chipidea/Makefile b/drivers/usb/chipidea/Makefile
index ddcbddf8361a..e3d5e728fa53 100644
--- a/drivers/usb/chipidea/Makefile
+++ b/drivers/usb/chipidea/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_CHIPIDEA)		+= ci_hdrc.o
 
 ci_hdrc-y				:= core.o otg.o debug.o
diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
index e462f55c8b99..98da99510be7 100644
--- a/drivers/usb/chipidea/bits.h
+++ b/drivers/usb/chipidea/bits.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bits.h - register bits of the ChipIdea USB IP core
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
  *
  * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __DRIVERS_USB_CHIPIDEA_BITS_H
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 6743f85b1b7a..98b7cb3d0064 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ci.h - common structures, functions, and macros of the ChipIdea driver
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
  *
  * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __DRIVERS_USB_CHIPIDEA_CI_H
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 5f4a8157fad8..3b45c25f296e 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -1,14 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2012 Freescale Semiconductor, Inc.
  * Copyright (C) 2012 Marek Vasut <marex@denx.de>
  * on behalf of DENX Software Engineering GmbH
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.h b/drivers/usb/chipidea/ci_hdrc_imx.h
index d666c9f036ba..204275f47573 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.h
+++ b/drivers/usb/chipidea/ci_hdrc_imx.h
@@ -1,12 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2012 Freescale Semiconductor, Inc.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
  */
 
 #ifndef __DRIVER_USB_CHIPIDEA_CI_HDRC_IMX_H
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index bb626120296f..3593ce0ec641 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -1,9 +1,5 @@
-/* Copyright (c) 2010, Code Aurora Forum. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- */
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2010, Code Aurora Forum. All rights reserved. */
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
diff --git a/drivers/usb/chipidea/ci_hdrc_pci.c b/drivers/usb/chipidea/ci_hdrc_pci.c
index 39414e4b2d81..49a61549cee6 100644
--- a/drivers/usb/chipidea/ci_hdrc_pci.c
+++ b/drivers/usb/chipidea/ci_hdrc_pci.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ci_hdrc_pci.c - MIPS USB IP core family device controller
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
  *
  * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/platform_device.h>
diff --git a/drivers/usb/chipidea/ci_hdrc_tegra.c b/drivers/usb/chipidea/ci_hdrc_tegra.c
index bfcee2702d50..7b65a1040d2c 100644
--- a/drivers/usb/chipidea/ci_hdrc_tegra.c
+++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016, NVIDIA Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/chipidea/ci_hdrc_usb2.c b/drivers/usb/chipidea/ci_hdrc_usb2.c
index 99425db9ba62..c044fba463e4 100644
--- a/drivers/usb/chipidea/ci_hdrc_usb2.c
+++ b/drivers/usb/chipidea/ci_hdrc_usb2.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Marvell Technology Group Ltd.
  *
  * Antoine Tenart <antoine.tenart@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/chipidea/ci_hdrc_zevio.c b/drivers/usb/chipidea/ci_hdrc_zevio.c
index 1264de505527..e1634da4a4b1 100644
--- a/drivers/usb/chipidea/ci_hdrc_zevio.c
+++ b/drivers/usb/chipidea/ci_hdrc_zevio.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Copyright (C) 2013 Daniel Tang <tangrs@tangrs.id.au>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2, as
- * published by the Free Software Foundation.
- *
  * Based off drivers/usb/chipidea/ci_hdrc_msm.c
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 43ea5fb87b9a..dd2dd9391bb7 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * core.c - ChipIdea USB IP core family device controller
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
  *
  * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 /*
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 1c31e8a08810..c9e1a165ed82 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <linux/types.h>
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 18cb8e46262d..19d60ed7e41f 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -1,22 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * host.c - ChipIdea USB host controller driver
  *
  * Copyright (c) 2012 Intel Corporation
  *
  * Author: Alexander Shishkin
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/chipidea/host.h b/drivers/usb/chipidea/host.h
index 0f12f131bdd3..70112cf0f195 100644
--- a/drivers/usb/chipidea/host.h
+++ b/drivers/usb/chipidea/host.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRIVERS_USB_CHIPIDEA_HOST_H
 #define __DRIVERS_USB_CHIPIDEA_HOST_H
 
diff --git a/drivers/usb/chipidea/otg.c b/drivers/usb/chipidea/otg.c
index 10236fe71522..db4ceffcf2a6 100644
--- a/drivers/usb/chipidea/otg.c
+++ b/drivers/usb/chipidea/otg.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * otg.c - ChipIdea USB IP core OTG driver
  *
  * Copyright (C) 2013 Freescale Semiconductor, Inc.
  *
  * Author: Peter Chen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 /*
diff --git a/drivers/usb/chipidea/otg.h b/drivers/usb/chipidea/otg.h
index 9ecb598e48f0..7e7428e48bfa 100644
--- a/drivers/usb/chipidea/otg.h
+++ b/drivers/usb/chipidea/otg.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013-2014 Freescale Semiconductor, Inc.
  *
  * Author: Peter Chen
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __DRIVERS_USB_CHIPIDEA_OTG_H
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 5ea0246f650d..9e2d300060bc 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * otg_fsm.c - ChipIdea USB IP core OTG FSM driver
  *
  * Copyright (C) 2014 Freescale Semiconductor, Inc.
  *
  * Author: Jun Li
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 /*
diff --git a/drivers/usb/chipidea/otg_fsm.h b/drivers/usb/chipidea/otg_fsm.h
index 6366fe398ba6..2b49d29bf2fb 100644
--- a/drivers/usb/chipidea/otg_fsm.h
+++ b/drivers/usb/chipidea/otg_fsm.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Freescale Semiconductor, Inc.
  *
  * Author: Jun Li
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __DRIVERS_USB_CHIPIDEA_OTG_FSM_H
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index fe8a90543ea3..9852ec5e6e01 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * udc.c - ChipIdea UDC driver
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
  *
  * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/delay.h>
@@ -1526,6 +1523,10 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
 		gadget_ready = 1;
 	spin_unlock_irqrestore(&ci->lock, flags);
 
+	if (ci->usb_phy)
+		usb_phy_set_charger_state(ci->usb_phy, is_active ?
+			USB_CHARGER_PRESENT : USB_CHARGER_ABSENT);
+
 	if (gadget_ready) {
 		if (is_active) {
 			pm_runtime_get_sync(&_gadget->dev);
diff --git a/drivers/usb/chipidea/udc.h b/drivers/usb/chipidea/udc.h
index 2ecd1174d66c..e023735d94b7 100644
--- a/drivers/usb/chipidea/udc.h
+++ b/drivers/usb/chipidea/udc.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * udc.h - ChipIdea UDC structures
  *
  * Copyright (C) 2008 Chipidea - MIPS Technologies, Inc. All rights reserved.
  *
  * Author: David Lopo
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __DRIVERS_USB_CHIPIDEA_UDC_H
diff --git a/drivers/usb/chipidea/ulpi.c b/drivers/usb/chipidea/ulpi.c
index 1219583dc1b2..6da42dcd2888 100644
--- a/drivers/usb/chipidea/ulpi.c
+++ b/drivers/usb/chipidea/ulpi.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016 Linaro Ltd.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 9f4a0185dd60..8cdf0af156c6 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -1,12 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2012 Freescale Semiconductor, Inc.
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/class/Makefile b/drivers/usb/class/Makefile
index 32e85277b5cf..5d393a28f7f2 100644
--- a/drivers/usb/class/Makefile
+++ b/drivers/usb/class/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB Class drivers
 # (one step up from the misc category)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 5e056064259c..8e0636c963a7 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * cdc-acm.c
  *
@@ -12,20 +13,6 @@
  * USB Abstract Control Model driver for USB modems and ISDN adapters
  *
  * Sponsored by SuSE
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  */
 
 #undef DEBUG
@@ -1832,6 +1819,9 @@ static const struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
 	.driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
 	},
+	{ USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */
+	.driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */
+	},
 
 	{ USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
 	.driver_info = CLEAR_HALT_CONDITIONS,
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index 7a2b3deafc90..eacc116e83da 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Includes for cdc-acm.c
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 5aacea1978a5..6c181a625daf 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cdc-wdm.c
  *
@@ -190,8 +191,10 @@ static void wdm_in_callback(struct urb *urb)
 	/*
 	 * only set a new error if there is no previous error.
 	 * Errors are only cleared during read/open
+	 * Avoid propagating -EPIPE (stall) to userspace since it is
+	 * better handled as an empty read
 	 */
-	if (desc->rerr  == 0)
+	if (desc->rerr == 0 && status != -EPIPE)
 		desc->rerr = status;
 
 	if (length + desc->length > desc->wMaxCommand) {
@@ -481,7 +484,7 @@ static ssize_t wdm_read
 	if (rv < 0)
 		return -ERESTARTSYS;
 
-	cntr = ACCESS_ONCE(desc->length);
+	cntr = READ_ONCE(desc->length);
 	if (cntr == 0) {
 		desc->read = 0;
 retry:
diff --git a/drivers/usb/class/usblp.c b/drivers/usb/class/usblp.c
index fb87c17ed6fa..c454885ef4a0 100644
--- a/drivers/usb/class/usblp.c
+++ b/drivers/usb/class/usblp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * usblp.c
  *
@@ -31,22 +32,6 @@
  *      none  - Maintained in Linux kernel after v0.13
  */
 
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/sched/signal.h>
diff --git a/drivers/usb/class/usbtmc.c b/drivers/usb/class/usbtmc.c
index 6ebfabfa0dc7..0b8b0f3bdd2f 100644
--- a/drivers/usb/class/usbtmc.c
+++ b/drivers/usb/class/usbtmc.c
@@ -1,22 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /**
  * drivers/usb/class/usbtmc.c - USB Test & Measurement class driver
  *
  * Copyright (C) 2007 Stefan Kopp, Gechingen, Germany
  * Copyright (C) 2008 Novell, Inc.
  * Copyright (C) 2008 Greg Kroah-Hartman <gregkh@suse.de>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * The GNU General Public License is available at
- * http://www.gnu.org/copyleft/gpl.html.
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -1343,6 +1331,7 @@ static void usbtmc_interrupt(struct urb *urb)
 	case -EOVERFLOW:
 		dev_err(dev, "overflow with length %d, actual length is %d\n",
 			data->iin_wMaxPacketSize, urb->actual_length);
+		/* fall through */
 	case -ECONNRESET:
 	case -ENOENT:
 	case -ESHUTDOWN:
diff --git a/drivers/usb/common/Makefile b/drivers/usb/common/Makefile
index 6bbb3ec17018..0a7c45e85481 100644
--- a/drivers/usb/common/Makefile
+++ b/drivers/usb/common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the usb common parts.
 #
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 552ff7ac5a6b..50a2362ed3ea 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Provides code common for host and device side USB.
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2.
- *
  * If either host side (ie. CONFIG_USB=y) or device side USB stack
  * (ie. CONFIG_USB_GADGET=y) is compiled in the kernel, this module is
  * compiled-in as well.  Otherwise, if either of the two stacks is
diff --git a/drivers/usb/common/led.c b/drivers/usb/common/led.c
index df23da00a901..7bd81166b77d 100644
--- a/drivers/usb/common/led.c
+++ b/drivers/usb/common/led.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * LED Triggers for USB Activity
  *
  * Copyright 2014 Michal Sojka <sojka@merica.cz>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 4aa5195db8ea..8b351444cc40 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * ulpi.c - USB ULPI PHY bus
  *
  * Copyright (C) 2015 Intel Corporation
  *
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/ulpi/interface.h>
diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c
index b8fe31e409a5..3740cf95560e 100644
--- a/drivers/usb/common/usb-otg-fsm.c
+++ b/drivers/usb/common/usb-otg-fsm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * OTG Finite State Machine from OTG spec
  *
@@ -5,20 +6,6 @@
  *
  * Author:	Li Yang <LeoLi@freescale.com>
  *		Jerry Huang <Chang-Ming.Huang@freescale.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/core/Makefile b/drivers/usb/core/Makefile
index 250ec1d662d9..92c9cefb4317 100644
--- a/drivers/usb/core/Makefile
+++ b/drivers/usb/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB Core files and filesystem
 #
diff --git a/drivers/usb/core/buffer.c b/drivers/usb/core/buffer.c
index b64568cf572c..77eef8acff94 100644
--- a/drivers/usb/core/buffer.c
+++ b/drivers/usb/core/buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DMA memory management for framework level HCD code (hc_driver)
  *
@@ -5,7 +6,6 @@
  * and should work with all USB controllers, regardless of bus type.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 4be52c602e9b..da8acd980fc6 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/usb.h>
@@ -643,15 +643,23 @@ static int usb_parse_configuration(struct usb_device *dev, int cfgidx,
 
 		} else if (header->bDescriptorType ==
 				USB_DT_INTERFACE_ASSOCIATION) {
+			struct usb_interface_assoc_descriptor *d;
+
+			d = (struct usb_interface_assoc_descriptor *)header;
+			if (d->bLength < USB_DT_INTERFACE_ASSOCIATION_SIZE) {
+				dev_warn(ddev,
+					 "config %d has an invalid interface association descriptor of length %d, skipping\n",
+					 cfgno, d->bLength);
+				continue;
+			}
+
 			if (iad_num == USB_MAXIADS) {
 				dev_warn(ddev, "found more Interface "
 					       "Association Descriptors "
 					       "than allocated for in "
 					       "configuration %d\n", cfgno);
 			} else {
-				config->intf_assoc[iad_num] =
-					(struct usb_interface_assoc_descriptor
-					*)header;
+				config->intf_assoc[iad_num] = d;
 				iad_num++;
 			}
 
@@ -852,7 +860,7 @@ int usb_get_configuration(struct usb_device *dev)
 		}
 
 		if (dev->quirks & USB_QUIRK_DELAY_INIT)
-			msleep(100);
+			msleep(200);
 
 		result = usb_get_descriptor(dev, USB_DT_CONFIG, cfgno,
 		    bigbuffer, length);
@@ -952,10 +960,12 @@ int usb_get_bos_descriptor(struct usb_device *dev)
 	for (i = 0; i < num; i++) {
 		buffer += length;
 		cap = (struct usb_dev_cap_header *)buffer;
-		length = cap->bLength;
 
-		if (total_len < length)
+		if (total_len < sizeof(*cap) || total_len < cap->bLength) {
+			dev->bos->desc->bNumDeviceCaps = i;
 			break;
+		}
+		length = cap->bLength;
 		total_len -= length;
 
 		if (cap->bDescriptorType != USB_DT_DEVICE_CAPABILITY) {
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 55dea2e7828f..c2cf62b7043a 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * devices.c
  * (C) Copyright 1999 Randy Dunlap.
@@ -5,20 +6,6 @@
  *     (proc file per device)
  * (C) Copyright 1999 Deti Fliegl (new USB architecture)
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  *************************************************************
  *
  * <mountpoint>/devices contains USB topology, device, config, class,
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 318bb3b96687..705c573d0257 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*****************************************************************************/
 
 /*
@@ -5,20 +6,6 @@
  *
  *      Copyright (C) 1999-2000  Thomas Sailer (sailer@ife.ee.ethz.ch)
  *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  *  This file implements the usbfs/x/y files, where
  *  x is the bus number and y the device number.
  *
@@ -140,6 +127,9 @@ module_param(usbfs_memory_mb, uint, 0644);
 MODULE_PARM_DESC(usbfs_memory_mb,
 		"maximum MB allowed for usbfs buffers (0 = no limit)");
 
+/* Hard limit, necessary to avoid arithmetic overflow */
+#define USBFS_XFER_MAX         (UINT_MAX / 2 - 1000000)
+
 static atomic64_t usbfs_memory_usage;	/* Total memory currently allocated */
 
 /* Check whether it's okay to allocate more memory for a transfer */
@@ -147,7 +137,7 @@ static int usbfs_increase_memory_usage(u64 amount)
 {
 	u64 lim;
 
-	lim = ACCESS_ONCE(usbfs_memory_mb);
+	lim = READ_ONCE(usbfs_memory_mb);
 	lim <<= 20;
 
 	atomic64_add(amount, &usbfs_memory_usage);
@@ -1460,6 +1450,8 @@ static int proc_do_submiturb(struct usb_dev_state *ps, struct usbdevfs_urb *uurb
 				USBDEVFS_URB_ZERO_PACKET |
 				USBDEVFS_URB_NO_INTERRUPT))
 		return -EINVAL;
+	if ((unsigned int)uurb->buffer_length >= USBFS_XFER_MAX)
+		return -EINVAL;
 	if (uurb->buffer_length > 0 && !uurb->buffer)
 		return -EINVAL;
 	if (!(uurb->type == USBDEVFS_URB_TYPE_CONTROL &&
@@ -1828,6 +1820,18 @@ static int proc_unlinkurb(struct usb_dev_state *ps, void __user *arg)
 	return 0;
 }
 
+static void compute_isochronous_actual_length(struct urb *urb)
+{
+	unsigned int i;
+
+	if (urb->number_of_packets > 0) {
+		urb->actual_length = 0;
+		for (i = 0; i < urb->number_of_packets; i++)
+			urb->actual_length +=
+					urb->iso_frame_desc[i].actual_length;
+	}
+}
+
 static int processcompl(struct async *as, void __user * __user *arg)
 {
 	struct urb *urb = as->urb;
@@ -1835,6 +1839,7 @@ static int processcompl(struct async *as, void __user * __user *arg)
 	void __user *addr = as->userurb;
 	unsigned int i;
 
+	compute_isochronous_actual_length(urb);
 	if (as->userbuffer && urb->actual_length) {
 		if (copy_urb_data_to_user(as->userbuffer, urb))
 			goto err_out;
@@ -2003,6 +2008,7 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
 	void __user *addr = as->userurb;
 	unsigned int i;
 
+	compute_isochronous_actual_length(urb);
 	if (as->userbuffer && urb->actual_length) {
 		if (copy_urb_data_to_user(as->userbuffer, urb))
 			return -EFAULT;
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index eb87a259d55c..64262a9a8829 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/driver.c - most of the driver model stuff for usb
  *
@@ -16,7 +17,6 @@
  *	(C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  *
  * NOTE! This is not actually a driver at all, rather this is
  * just a collection of helper routines that implement the
@@ -1340,8 +1340,8 @@ static int usb_suspend_both(struct usb_device *udev, pm_message_t msg)
 			int err;
 			u16 devstat;
 
-			err = usb_get_status(udev, USB_RECIP_DEVICE, 0,
-					     &devstat);
+			err = usb_get_std_status(udev, USB_RECIP_DEVICE, 0,
+						 &devstat);
 			if (err) {
 				dev_err(&udev->dev,
 					"Failed to suspend device, error %d\n",
@@ -1461,6 +1461,7 @@ static void choose_wakeup(struct usb_device *udev, pm_message_t msg)
 int usb_suspend(struct device *dev, pm_message_t msg)
 {
 	struct usb_device	*udev = to_usb_device(dev);
+	int r;
 
 	unbind_no_pm_drivers_interfaces(udev);
 
@@ -1469,7 +1470,14 @@ int usb_suspend(struct device *dev, pm_message_t msg)
 	 * so we may still need to unbind and rebind upon resume
 	 */
 	choose_wakeup(udev, msg);
-	return usb_suspend_both(udev, msg);
+	r = usb_suspend_both(udev, msg);
+	if (r)
+		return r;
+
+	if (udev->quirks & USB_QUIRK_DISCONNECT_SUSPEND)
+		usb_port_disable(udev);
+
+	return 0;
 }
 
 /* The device lock is held by the PM core */
diff --git a/drivers/usb/core/endpoint.c b/drivers/usb/core/endpoint.c
index a60bc830a056..1c2c04079676 100644
--- a/drivers/usb/core/endpoint.c
+++ b/drivers/usb/core/endpoint.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/endpoint.c
  *
@@ -6,7 +7,6 @@
  * (C) Copyright 2006 Novell Inc.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  *
  * Endpoint sysfs stuff
  */
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 87ad6b6bfee8..65de6f73b672 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/file.c
  *
@@ -14,7 +15,6 @@
  * (C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/core/generic.c b/drivers/usb/core/generic.c
index bd3e0c5a6db2..83c14dda6300 100644
--- a/drivers/usb/core/generic.c
+++ b/drivers/usb/core/generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/generic.c - generic driver for USB devices (not interfaces)
  *
@@ -16,7 +17,6 @@
  *	(C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/usb.h>
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index ea829ad798c0..66fe1b78d952 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright David Brownell 2000-2002
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 75ad6718858c..19b5c4afeef2 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright Linus Torvalds 1999
  * (C) Copyright Johannes Erdfelt 1999-2001
@@ -6,20 +7,6 @@
  * (C) Copyright Deti Fliegl 1999
  * (C) Copyright Randy Dunlap 2000
  * (C) Copyright David Brownell 2000-2002
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/bcd.h>
@@ -2558,9 +2545,7 @@ struct usb_hcd *__usb_create_hcd(const struct hc_driver *driver,
 	hcd->self.bus_name = bus_name;
 	hcd->self.uses_dma = (sysdev->dma_mask != NULL);
 
-	init_timer(&hcd->rh_timer);
-	hcd->rh_timer.function = rh_timer_func;
-	hcd->rh_timer.data = (unsigned long) hcd;
+	setup_timer(&hcd->rh_timer, rh_timer_func, (unsigned long)hcd);
 #ifdef CONFIG_PM
 	INIT_WORK(&hcd->wakeup_work, hcd_resume_work);
 #endif
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 41eaf0b52518..7ccdd3d4db84 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB hub driver.
  *
@@ -7,7 +8,6 @@
  * (C) Copyright 2001 Brad Hards (bhards@bigpond.net.au)
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/kernel.h>
@@ -1482,7 +1482,7 @@ static int hub_configure(struct usb_hub *hub,
 	/* power budgeting mostly matters with bus-powered hubs,
 	 * and battery-powered root hubs (may provide just 8 mA).
 	 */
-	ret = usb_get_status(hdev, USB_RECIP_DEVICE, 0, &hubstatus);
+	ret = usb_get_std_status(hdev, USB_RECIP_DEVICE, 0, &hubstatus);
 	if (ret) {
 		message = "can't get hub status";
 		goto fail;
@@ -2710,13 +2710,16 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1,
 	if (!(portstatus & USB_PORT_STAT_CONNECTION))
 		return -ENOTCONN;
 
-	/* bomb out completely if the connection bounced.  A USB 3.0
-	 * connection may bounce if multiple warm resets were issued,
+	/* Retry if connect change is set but status is still connected.
+	 * A USB 3.0 connection may bounce if multiple warm resets were issued,
 	 * but the device may have successfully re-connected. Ignore it.
 	 */
 	if (!hub_is_superspeed(hub->hdev) &&
-			(portchange & USB_PORT_STAT_C_CONNECTION))
-		return -ENOTCONN;
+	    (portchange & USB_PORT_STAT_C_CONNECTION)) {
+		usb_clear_port_feature(hub->hdev, port1,
+				       USB_PORT_FEAT_C_CONNECTION);
+		return -EAGAIN;
+	}
 
 	if (!(portstatus & USB_PORT_STAT_ENABLE))
 		return -EBUSY;
@@ -3276,7 +3279,7 @@ static int finish_port_resume(struct usb_device *udev)
 	 */
 	if (status == 0) {
 		devstatus = 0;
-		status = usb_get_status(udev, USB_RECIP_DEVICE, 0, &devstatus);
+		status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, &devstatus);
 
 		/* If a normal resume failed, try doing a reset-resume */
 		if (status && !udev->reset_resume && udev->persist_enabled) {
@@ -3300,7 +3303,7 @@ static int finish_port_resume(struct usb_device *udev)
 			if (devstatus & (1 << USB_DEVICE_REMOTE_WAKEUP))
 				status = usb_disable_remote_wakeup(udev);
 		} else {
-			status = usb_get_status(udev, USB_RECIP_INTERFACE, 0,
+			status = usb_get_std_status(udev, USB_RECIP_INTERFACE, 0,
 					&devstatus);
 			if (!status && devstatus & (USB_INTRF_STAT_FUNC_RW_CAP
 					| USB_INTRF_STAT_FUNC_RW))
@@ -4180,6 +4183,19 @@ static int hub_port_disable(struct usb_hub *hub, int port1, int set_state)
 	return ret;
 }
 
+/*
+ * usb_port_disable - disable a usb device's upstream port
+ * @udev: device to disable
+ * Context: @udev locked, must be able to sleep.
+ *
+ * Disables a USB device that isn't in active use.
+ */
+int usb_port_disable(struct usb_device *udev)
+{
+	struct usb_hub *hub = usb_hub_to_struct_hub(udev->parent);
+
+	return hub_port_disable(hub, udev->portnum, 0);
+}
 
 /* USB 2.0 spec, 7.1.7.3 / fig 7-29:
  *
@@ -4838,7 +4854,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 			goto loop;
 
 		if (udev->quirks & USB_QUIRK_DELAY_INIT)
-			msleep(1000);
+			msleep(2000);
 
 		/* consecutive bus-powered hubs aren't reliable; they can
 		 * violate the voltage drop budget.  if the new child has
@@ -4850,7 +4866,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
 				&& udev->bus_mA <= unit_load) {
 			u16	devstat;
 
-			status = usb_get_status(udev, USB_RECIP_DEVICE, 0,
+			status = usb_get_std_status(udev, USB_RECIP_DEVICE, 0,
 					&devstat);
 			if (status) {
 				dev_dbg(&udev->dev, "get status %d ?\n", status);
diff --git a/drivers/usb/core/hub.h b/drivers/usb/core/hub.h
index 34c1a7e22aae..2a700ccc868c 100644
--- a/drivers/usb/core/hub.h
+++ b/drivers/usb/core/hub.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usb hub driver head file
  *
@@ -8,15 +9,6 @@
  * Copyright (C) 2012 Intel Corp (tianyu.lan@intel.com)
  *
  *  move struct usb_hub to this file.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
  */
 
 #include <linux/usb.h>
diff --git a/drivers/usb/core/ledtrig-usbport.c b/drivers/usb/core/ledtrig-usbport.c
index 1af877942110..9dbb429cd471 100644
--- a/drivers/usb/core/ledtrig-usbport.c
+++ b/drivers/usb/core/ledtrig-usbport.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB port LED trigger
  *
  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 4c38ea41ae96..77001bcfc504 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1,8 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * message.c - synchronous message handling
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/pci.h>	/* for scatterlist macros */
@@ -918,7 +918,8 @@ int usb_get_device_descriptor(struct usb_device *dev, unsigned int size)
 /**
  * usb_get_status - issues a GET_STATUS call
  * @dev: the device whose status is being checked
- * @type: USB_RECIP_*; for device, interface, or endpoint
+ * @recip: USB_RECIP_*; for device, interface, or endpoint
+ * @type: USB_STATUS_TYPE_*; for standard or PTM status types
  * @target: zero (for device), else interface or endpoint number
  * @data: pointer to two bytes of bitmap data
  * Context: !in_interrupt ()
@@ -937,24 +938,58 @@ int usb_get_device_descriptor(struct usb_device *dev, unsigned int size)
  * Returns 0 and the status value in *@data (in host byte order) on success,
  * or else the status code from the underlying usb_control_msg() call.
  */
-int usb_get_status(struct usb_device *dev, int type, int target, void *data)
+int usb_get_status(struct usb_device *dev, int recip, int type, int target,
+		void *data)
 {
 	int ret;
-	__le16 *status = kmalloc(sizeof(*status), GFP_KERNEL);
+	void *status;
+	int length;
+
+	switch (type) {
+	case USB_STATUS_TYPE_STANDARD:
+		length = 2;
+		break;
+	case USB_STATUS_TYPE_PTM:
+		if (recip != USB_RECIP_DEVICE)
+			return -EINVAL;
+
+		length = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
 
+	status =  kmalloc(length, GFP_KERNEL);
 	if (!status)
 		return -ENOMEM;
 
 	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-		USB_REQ_GET_STATUS, USB_DIR_IN | type, 0, target, status,
-		sizeof(*status), USB_CTRL_GET_TIMEOUT);
+		USB_REQ_GET_STATUS, USB_DIR_IN | recip, USB_STATUS_TYPE_STANDARD,
+		target, status, length, USB_CTRL_GET_TIMEOUT);
+
+	switch (ret) {
+	case 4:
+		if (type != USB_STATUS_TYPE_PTM) {
+			ret = -EIO;
+			break;
+		}
 
-	if (ret == 2) {
-		*(u16 *) data = le16_to_cpu(*status);
+		*(u32 *) data = le32_to_cpu(*(__le32 *) status);
 		ret = 0;
-	} else if (ret >= 0) {
+		break;
+	case 2:
+		if (type != USB_STATUS_TYPE_STANDARD) {
+			ret = -EIO;
+			break;
+		}
+
+		*(u16 *) data = le16_to_cpu(*(__le16 *) status);
+		ret = 0;
+		break;
+	default:
 		ret = -EIO;
 	}
+
 	kfree(status);
 	return ret;
 }
@@ -2069,6 +2104,10 @@ int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
 			elength = 1;
 			goto next_desc;
 		}
+		if ((buflen < elength) || (elength < 3)) {
+			dev_err(&intf->dev, "invalid descriptor buffer length\n");
+			break;
+		}
 		if (buffer[1] != USB_DT_CS_INTERFACE) {
 			dev_err(&intf->dev, "skipping garbage\n");
 			goto next_desc;
diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
index b12a463a3e22..ab474b11523e 100644
--- a/drivers/usb/core/notify.c
+++ b/drivers/usb/core/notify.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * All the USB notify logic
  *
@@ -7,7 +8,6 @@
  * but fixed up to not be so broken.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 
diff --git a/drivers/usb/core/of.c b/drivers/usb/core/of.c
index 3863bb1ce8c5..2be968353257 100644
--- a/drivers/usb/core/of.c
+++ b/drivers/usb/core/of.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * of.c		The helpers for hcd device tree support
  *
  * Copyright (C) 2016 Freescale Semiconductor, Inc.
  * Author: Peter Chen <peter.chen@freescale.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/of.h>
diff --git a/drivers/usb/core/otg_whitelist.h b/drivers/usb/core/otg_whitelist.h
index 085049d37d7a..2ae90158ded7 100644
--- a/drivers/usb/core/otg_whitelist.h
+++ b/drivers/usb/core/otg_whitelist.h
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * drivers/usb/core/otg_whitelist.h
  *
  * Copyright (C) 2004 Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /*
diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c
index 460c855be0d0..1a01e9ad3804 100644
--- a/drivers/usb/core/port.c
+++ b/drivers/usb/core/port.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usb port device code
  *
  * Copyright (C) 2012 Intel Corp
  *
  * Author: Lan Tianyu <tianyu.lan@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
  */
 
 #include <linux/slab.h>
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 82806e311202..f1dbab6f798f 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB device quirk handling logic and table
  *
  * Copyright (c) 2007 Oliver Neukum
  * Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation, version 2.
- *
- *
  */
 
 #include <linux/usb.h>
@@ -203,6 +198,12 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
 			USB_QUIRK_STRING_FETCH_255 },
 
+	/* Huawei 4G LTE module */
+	{ USB_DEVICE(0x12d1, 0x15bb), .driver_info =
+			USB_QUIRK_DISCONNECT_SUSPEND },
+	{ USB_DEVICE(0x12d1, 0x15c3), .driver_info =
+			USB_QUIRK_DISCONNECT_SUSPEND },
+
 	/* SKYMEDI USB_DRIVE */
 	{ USB_DEVICE(0x1516, 0x8628), .driver_info = USB_QUIRK_RESET_RESUME },
 
@@ -221,6 +222,13 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Corsair Strafe RGB */
 	{ USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
 
+	/* Corsair K70 LUX */
+	{ USB_DEVICE(0x1b1c, 0x1b36), .driver_info = USB_QUIRK_DELAY_INIT },
+
+	/* MIDI keyboard WORLDE MINI */
+	{ USB_DEVICE(0x1c75, 0x0204), .driver_info =
+			USB_QUIRK_CONFIG_INTF_STRINGS },
+
 	/* Acer C120 LED Projector */
 	{ USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
 
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index d930bfda4010..27bb34043053 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/sysfs.c
  *
@@ -8,7 +9,6 @@
  * All of the sysfs file attributes for usb devices and interfaces.
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 
@@ -654,7 +654,8 @@ static int add_power_attributes(struct device *dev)
 		if (udev->usb2_hw_lpm_capable == 1)
 			rc = sysfs_merge_group(&dev->kobj,
 					&usb2_hardware_lpm_attr_group);
-		if (udev->speed == USB_SPEED_SUPER &&
+		if ((udev->speed == USB_SPEED_SUPER ||
+		     udev->speed == USB_SPEED_SUPER_PLUS) &&
 				udev->lpm_capable == 1)
 			rc = sysfs_merge_group(&dev->kobj,
 					&usb3_hardware_lpm_attr_group);
@@ -973,7 +974,7 @@ static ssize_t interface_show(struct device *dev, struct device_attribute *attr,
 	char *string;
 
 	intf = to_usb_interface(dev);
-	string = ACCESS_ONCE(intf->cur_altsetting->string);
+	string = READ_ONCE(intf->cur_altsetting->string);
 	if (!string)
 		return 0;
 	return sprintf(buf, "%s\n", string);
@@ -989,7 +990,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 
 	intf = to_usb_interface(dev);
 	udev = interface_to_usbdev(intf);
-	alt = ACCESS_ONCE(intf->cur_altsetting);
+	alt = READ_ONCE(intf->cur_altsetting);
 
 	return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02X"
 			"ic%02Xisc%02Xip%02Xin%02X\n",
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 47903d510955..f501af0b3079 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/module.h>
@@ -492,6 +492,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
 			if ((urb->interval < 6)
 				&& (xfertype == USB_ENDPOINT_XFER_INT))
 				return -EINVAL;
+			/* fall through */
 		default:
 			if (urb->interval <= 0)
 				return -EINVAL;
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index ef9cf4a21afe..84da17460568 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB-ACPI glue code
  *
  * Copyright 2012 Red Hat <mjg@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation, version 2.
- *
  */
 #include <linux/module.h>
 #include <linux/usb.h>
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 17681d5638ac..845286f08ab0 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/core/usb.c
  *
@@ -13,7 +14,6 @@
  * (C) Copyright Greg Kroah-Hartman 2002-2003
  *
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  *
  * NOTE! This is not actually a driver at all, rather this is
  * just a collection of helper routines that implement the
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index dc6949248823..2bee08d084ae 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -1,6 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Released under the GPLv2 only.
- * SPDX-License-Identifier: GPL-2.0
  */
 
 #include <linux/pm.h>
@@ -73,6 +73,7 @@ extern void usb_hub_cleanup(void);
 extern int usb_major_init(void);
 extern void usb_major_cleanup(void);
 extern int usb_device_supports_lpm(struct usb_device *udev);
+extern int usb_port_disable(struct usb_device *udev);
 
 #ifdef	CONFIG_PM
 
diff --git a/drivers/usb/dwc2/Makefile b/drivers/usb/dwc2/Makefile
index b9237e1e45d0..440320cc20a4 100644
--- a/drivers/usb/dwc2/Makefile
+++ b/drivers/usb/dwc2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_USB_DWC2_DEBUG)	+= -DDEBUG
 ccflags-$(CONFIG_USB_DWC2_VERBOSE)	+= -DVERBOSE_DEBUG
 
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c
index 1b6612c2cdda..82a7d98c3436 100644
--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * core.c - DesignWare HS OTG Controller common routines
  *
diff --git a/drivers/usb/dwc2/core.h b/drivers/usb/dwc2/core.h
index 8367d4f985c1..f66c94130cac 100644
--- a/drivers/usb/dwc2/core.h
+++ b/drivers/usb/dwc2/core.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * core.h - DesignWare HS OTG Controller common declarations
  *
@@ -395,6 +396,9 @@ enum dwc2_ep0_state {
  *                           (default when phy_type is UTMI+ or ULPI)
  *                       1 - 6 MHz
  *                           (default when phy_type is Full Speed)
+ * @oc_disable:		Flag to disable overcurrent condition.
+ *			0 - Allow overcurrent condition to get detected
+ *			1 - Disable overcurrent condtion to get detected
  * @ts_dline:           Enable Term Select Dline pulsing
  *                       0 - No (default)
  *                       1 - Yes
@@ -492,6 +496,7 @@ struct dwc2_core_params {
 	bool dma_desc_fs_enable;
 	bool host_support_fs_ls_low_power;
 	bool host_ls_low_power_phy_clk;
+	bool oc_disable;
 
 	u8 host_channels;
 	u16 host_rx_fifo_size;
diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c
index b8bcb007c92a..ab3fa1630853 100644
--- a/drivers/usb/dwc2/core_intr.c
+++ b/drivers/usb/dwc2/core_intr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * core_intr.c - DesignWare HS OTG Controller common interrupt handling
  *
diff --git a/drivers/usb/dwc2/debug.h b/drivers/usb/dwc2/debug.h
index 8222783e6822..6f23219c13cb 100644
--- a/drivers/usb/dwc2/debug.h
+++ b/drivers/usb/dwc2/debug.h
@@ -1,17 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * debug.h - Designware USB2 DRD controller debug header
  *
  * Copyright (C) 2015 Intel Corporation
  * Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include "core.h"
diff --git a/drivers/usb/dwc2/debugfs.c b/drivers/usb/dwc2/debugfs.c
index 794b959a7c8c..f4650a88be78 100644
--- a/drivers/usb/dwc2/debugfs.c
+++ b/drivers/usb/dwc2/debugfs.c
@@ -1,17 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * debugfs.c - Designware USB2 DRD controller debugfs
  *
  * Copyright (C) 2015 Intel Corporation
  * Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/spinlock.h>
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 0d8e09ccb59c..88529d092503 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com
@@ -8,10 +9,6 @@
  *      http://armlinux.simtec.co.uk/
  *
  * S3C USB2.0 High-speed / OtG driver
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -3202,6 +3199,8 @@ void dwc2_hsotg_disconnect(struct dwc2_hsotg *hsotg)
 
 	call_gadget(hsotg, disconnect);
 	hsotg->lx_state = DWC2_L3;
+
+	usb_gadget_set_state(&hsotg->gadget, USB_STATE_NOTATTACHED);
 }
 
 /**
@@ -4004,6 +4003,11 @@ static int dwc2_hsotg_ep_disable(struct usb_ep *ep)
 		return -EINVAL;
 	}
 
+	if (hsotg->op_state != OTG_STATE_B_PERIPHERAL) {
+		dev_err(hsotg->dev, "%s: called in host mode?\n", __func__);
+		return -EINVAL;
+	}
+
 	epctrl_reg = dir_in ? DIEPCTL(index) : DOEPCTL(index);
 
 	spin_lock_irqsave(&hsotg->lock, flags);
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index c2631145f404..69eb40cd1b47 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * hcd.c - DesignWare HS OTG Controller host-mode routines
  *
@@ -213,6 +214,11 @@ static int dwc2_hs_phy_init(struct dwc2_hsotg *hsotg, bool select_phy)
 		usbcfg &= ~(GUSBCFG_PHYIF16 | GUSBCFG_DDRSEL);
 		if (hsotg->params.phy_ulpi_ddr)
 			usbcfg |= GUSBCFG_DDRSEL;
+
+		/* Set external VBUS indicator as needed. */
+		if (hsotg->params.oc_disable)
+			usbcfg |= (GUSBCFG_ULPI_INT_VBUS_IND |
+				   GUSBCFG_INDICATORPASSTHROUGH);
 		break;
 	case DWC2_PHY_TYPE_PARAM_UTMI:
 		/* UTMI+ interface */
@@ -3277,7 +3283,6 @@ static void dwc2_conn_id_status_change(struct work_struct *work)
 		dwc2_core_init(hsotg, false);
 		dwc2_enable_global_interrupts(hsotg);
 		spin_lock_irqsave(&hsotg->lock, flags);
-		dwc2_hsotg_disconnect(hsotg);
 		dwc2_hsotg_core_init_disconnected(hsotg, false);
 		spin_unlock_irqrestore(&hsotg->lock, flags);
 		dwc2_hsotg_core_connect(hsotg);
@@ -3296,8 +3301,12 @@ host:
 		if (count > 250)
 			dev_err(hsotg->dev,
 				"Connection id status change timed out\n");
-		hsotg->op_state = OTG_STATE_A_HOST;
 
+		spin_lock_irqsave(&hsotg->lock, flags);
+		dwc2_hsotg_disconnect(hsotg);
+		spin_unlock_irqrestore(&hsotg->lock, flags);
+
+		hsotg->op_state = OTG_STATE_A_HOST;
 		/* Initialize the Core for Host mode */
 		dwc2_core_init(hsotg, false);
 		dwc2_enable_global_interrupts(hsotg);
diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h
index 11c3c145b793..78e9e01051b5 100644
--- a/drivers/usb/dwc2/hcd.h
+++ b/drivers/usb/dwc2/hcd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * hcd.h - DesignWare HS OTG Controller host-mode declarations
  *
diff --git a/drivers/usb/dwc2/hcd_ddma.c b/drivers/usb/dwc2/hcd_ddma.c
index b8bdf545c3a7..28c8898b3b66 100644
--- a/drivers/usb/dwc2/hcd_ddma.c
+++ b/drivers/usb/dwc2/hcd_ddma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * hcd_ddma.c - DesignWare HS OTG Controller descriptor DMA routines
  *
diff --git a/drivers/usb/dwc2/hcd_intr.c b/drivers/usb/dwc2/hcd_intr.c
index 28a8210710b1..916d991b96b8 100644
--- a/drivers/usb/dwc2/hcd_intr.c
+++ b/drivers/usb/dwc2/hcd_intr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * hcd_intr.c - DesignWare HS OTG Controller host-mode interrupt handling
  *
diff --git a/drivers/usb/dwc2/hcd_queue.c b/drivers/usb/dwc2/hcd_queue.c
index 3ae8b1bbaa55..f472de238ac2 100644
--- a/drivers/usb/dwc2/hcd_queue.c
+++ b/drivers/usb/dwc2/hcd_queue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * hcd_queue.c - DesignWare HS OTG Controller host queuing routines
  *
diff --git a/drivers/usb/dwc2/hw.h b/drivers/usb/dwc2/hw.h
index 4592012c4743..2c906d8ee465 100644
--- a/drivers/usb/dwc2/hw.h
+++ b/drivers/usb/dwc2/hw.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * hw.h - DesignWare HS OTG Controller hardware definitions
  *
diff --git a/drivers/usb/dwc2/params.c b/drivers/usb/dwc2/params.c
index a3ffe97170ff..ef73af6e03a9 100644
--- a/drivers/usb/dwc2/params.c
+++ b/drivers/usb/dwc2/params.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * Copyright (C) 2004-2016 Synopsys, Inc.
  *
@@ -136,6 +137,15 @@ static void dwc2_set_stm32f4x9_fsotg_params(struct dwc2_hsotg *hsotg)
 	p->activate_stm_fs_transceiver = true;
 }
 
+static void dwc2_set_stm32f7xx_hsotg_params(struct dwc2_hsotg *hsotg)
+{
+	struct dwc2_core_params *p = &hsotg->params;
+
+	p->host_rx_fifo_size = 622;
+	p->host_nperio_tx_fifo_size = 128;
+	p->host_perio_tx_fifo_size = 256;
+}
+
 const struct of_device_id dwc2_of_match_table[] = {
 	{ .compatible = "brcm,bcm2835-usb", .data = dwc2_set_bcm_params },
 	{ .compatible = "hisilicon,hi6220-usb", .data = dwc2_set_his_params  },
@@ -154,6 +164,8 @@ const struct of_device_id dwc2_of_match_table[] = {
 	{ .compatible = "st,stm32f4x9-fsotg",
 	  .data = dwc2_set_stm32f4x9_fsotg_params },
 	{ .compatible = "st,stm32f4x9-hsotg" },
+	{ .compatible = "st,stm32f7xx-hsotg",
+	  .data = dwc2_set_stm32f7xx_hsotg_params },
 	{},
 };
 MODULE_DEVICE_TABLE(of, dwc2_of_match_table);
@@ -335,6 +347,9 @@ static void dwc2_get_device_properties(struct dwc2_hsotg *hsotg)
 						       num);
 		}
 	}
+
+	if (of_find_property(hsotg->dev->of_node, "disable-over-current", NULL))
+		p->oc_disable = true;
 }
 
 static void dwc2_check_param_otg_cap(struct dwc2_hsotg *hsotg)
diff --git a/drivers/usb/dwc2/pci.c b/drivers/usb/dwc2/pci.c
index fdeb8c7bf30a..3ecc951a1aea 100644
--- a/drivers/usb/dwc2/pci.c
+++ b/drivers/usb/dwc2/pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * pci.c - DesignWare HS OTG Controller PCI driver
  *
diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c
index daf0d37acb37..3e26550d13dd 100644
--- a/drivers/usb/dwc2/platform.c
+++ b/drivers/usb/dwc2/platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * platform.c - DesignWare HS OTG Controller platform driver
  *
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index f15fabbd1e59..7ac725038f8d 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # define_trace.h needs to know how to find our header
 CFLAGS_trace.o				:= -I$(src)
 
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 03474d3575ab..07832509584f 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * core.c - DesignWare USB3 DRD Controller Core file
  *
@@ -5,18 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/version.h>
@@ -156,9 +145,8 @@ static void __dwc3_set_mode(struct work_struct *work)
 		} else {
 			if (dwc->usb2_phy)
 				otg_set_vbus(dwc->usb2_phy->otg, true);
-			if (dwc->usb2_generic_phy)
-				phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
-
+			phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
+			phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST);
 		}
 		break;
 	case DWC3_GCTL_PRTCAP_DEVICE:
@@ -166,8 +154,8 @@ static void __dwc3_set_mode(struct work_struct *work)
 
 		if (dwc->usb2_phy)
 			otg_set_vbus(dwc->usb2_phy->otg, false);
-		if (dwc->usb2_generic_phy)
-			phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE);
+		phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE);
+		phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_DEVICE);
 
 		ret = dwc3_gadget_init(dwc);
 		if (ret)
@@ -927,12 +915,13 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
 
 	switch (dwc->dr_mode) {
 	case USB_DR_MODE_PERIPHERAL:
+		dwc->current_dr_role = DWC3_GCTL_PRTCAP_DEVICE;
 		dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_DEVICE);
 
 		if (dwc->usb2_phy)
 			otg_set_vbus(dwc->usb2_phy->otg, false);
-		if (dwc->usb2_generic_phy)
-			phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE);
+		phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_DEVICE);
+		phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_DEVICE);
 
 		ret = dwc3_gadget_init(dwc);
 		if (ret) {
@@ -942,12 +931,13 @@ static int dwc3_core_init_mode(struct dwc3 *dwc)
 		}
 		break;
 	case USB_DR_MODE_HOST:
+		dwc->current_dr_role = DWC3_GCTL_PRTCAP_HOST;
 		dwc3_set_prtcap(dwc, DWC3_GCTL_PRTCAP_HOST);
 
 		if (dwc->usb2_phy)
 			otg_set_vbus(dwc->usb2_phy->otg, true);
-		if (dwc->usb2_generic_phy)
-			phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
+		phy_set_mode(dwc->usb2_generic_phy, PHY_MODE_USB_HOST);
+		phy_set_mode(dwc->usb3_generic_phy, PHY_MODE_USB_HOST);
 
 		ret = dwc3_host_init(dwc);
 		if (ret) {
@@ -1293,21 +1283,19 @@ static int dwc3_suspend_common(struct dwc3 *dwc)
 {
 	unsigned long	flags;
 
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-	case USB_DR_MODE_OTG:
+	switch (dwc->current_dr_role) {
+	case DWC3_GCTL_PRTCAP_DEVICE:
 		spin_lock_irqsave(&dwc->lock, flags);
 		dwc3_gadget_suspend(dwc);
 		spin_unlock_irqrestore(&dwc->lock, flags);
+		dwc3_core_exit(dwc);
 		break;
-	case USB_DR_MODE_HOST:
+	case DWC3_GCTL_PRTCAP_HOST:
 	default:
 		/* do nothing */
 		break;
 	}
 
-	dwc3_core_exit(dwc);
-
 	return 0;
 }
 
@@ -1316,18 +1304,17 @@ static int dwc3_resume_common(struct dwc3 *dwc)
 	unsigned long	flags;
 	int		ret;
 
-	ret = dwc3_core_init(dwc);
-	if (ret)
-		return ret;
+	switch (dwc->current_dr_role) {
+	case DWC3_GCTL_PRTCAP_DEVICE:
+		ret = dwc3_core_init(dwc);
+		if (ret)
+			return ret;
 
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-	case USB_DR_MODE_OTG:
 		spin_lock_irqsave(&dwc->lock, flags);
 		dwc3_gadget_resume(dwc);
 		spin_unlock_irqrestore(&dwc->lock, flags);
-		/* FALLTHROUGH */
-	case USB_DR_MODE_HOST:
+		break;
+	case DWC3_GCTL_PRTCAP_HOST:
 	default:
 		/* do nothing */
 		break;
@@ -1338,7 +1325,7 @@ static int dwc3_resume_common(struct dwc3 *dwc)
 
 static int dwc3_runtime_checks(struct dwc3 *dwc)
 {
-	switch (dwc->dr_mode) {
+	switch (dwc->current_dr_role) {
 	case USB_DR_MODE_PERIPHERAL:
 	case USB_DR_MODE_OTG:
 		if (dwc->connected)
@@ -1381,19 +1368,17 @@ static int dwc3_runtime_resume(struct device *dev)
 	if (ret)
 		return ret;
 
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-	case USB_DR_MODE_OTG:
+	switch (dwc->current_dr_role) {
+	case DWC3_GCTL_PRTCAP_DEVICE:
 		dwc3_gadget_process_pending_events(dwc);
 		break;
-	case USB_DR_MODE_HOST:
+	case DWC3_GCTL_PRTCAP_HOST:
 	default:
 		/* do nothing */
 		break;
 	}
 
 	pm_runtime_mark_last_busy(dev);
-	pm_runtime_put(dev);
 
 	return 0;
 }
@@ -1402,13 +1387,12 @@ static int dwc3_runtime_idle(struct device *dev)
 {
 	struct dwc3     *dwc = dev_get_drvdata(dev);
 
-	switch (dwc->dr_mode) {
-	case USB_DR_MODE_PERIPHERAL:
-	case USB_DR_MODE_OTG:
+	switch (dwc->current_dr_role) {
+	case DWC3_GCTL_PRTCAP_DEVICE:
 		if (dwc3_runtime_checks(dwc))
 			return -EBUSY;
 		break;
-	case USB_DR_MODE_HOST:
+	case DWC3_GCTL_PRTCAP_HOST:
 	default:
 		/* do nothing */
 		break;
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index ea910acb4bb0..4a4a4c98508c 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * core.h - DesignWare USB3 DRD Core Header
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #ifndef __DRIVERS_USB_DWC3_CORE_H
@@ -529,6 +521,7 @@ struct dwc3_event_buffer {
  * @number: endpoint number (1 - 15)
  * @type: set to bmAttributes & USB_ENDPOINT_XFERTYPE_MASK
  * @resource_index: Resource transfer index
+ * @frame_number: set to the frame number we want this transfer to start (ISOC)
  * @interval: the interval on which the ISOC transfer is started
  * @allocated_requests: number of requests allocated
  * @queued_requests: number of requests queued for transfer
@@ -581,6 +574,7 @@ struct dwc3_ep {
 	u8			resource_index;
 	u32			allocated_requests;
 	u32			queued_requests;
+	u32			frame_number;
 	u32			interval;
 
 	char			name[20];
diff --git a/drivers/usb/dwc3/debug.h b/drivers/usb/dwc3/debug.h
index 5e9c070ec874..368f8e59219a 100644
--- a/drivers/usb/dwc3/debug.h
+++ b/drivers/usb/dwc3/debug.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * debug.h - DesignWare USB3 DRD Controller Debug Header
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #ifndef __DWC3_DEBUG_H
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index 4e09be80e59f..00e65530c81e 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * debugfs.c - DesignWare USB3 DRD Controller DebugFS file
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c
index 2765c51c7ef5..cc8ab9a8e9d2 100644
--- a/drivers/usb/dwc3/drd.c
+++ b/drivers/usb/dwc3/drd.c
@@ -1,21 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * drd.c - DesignWare USB3 DRD Controller Dual-role support
  *
  * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com
  *
  * Authors: Roger Quadros <rogerq@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/extcon.h>
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index e089df72f766..a94fb1ba8f2c 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * dwc3-exynos.c - Samsung EXYNOS DWC3 Specific Glue layer
  *
@@ -5,15 +6,6 @@
  *		http://www.samsung.com
  *
  * Author: Anton Tikhomirov <av.tikhomirov@samsung.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/dwc3/dwc3-keystone.c b/drivers/usb/dwc3/dwc3-keystone.c
index d2ed9523e77c..193a9a88222a 100644
--- a/drivers/usb/dwc3/dwc3-keystone.c
+++ b/drivers/usb/dwc3/dwc3-keystone.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * dwc3-keystone.c - Keystone Specific Glue layer
  *
  * Copyright (C) 2010-2013 Texas Instruments Incorporated - http://www.ti.com
  *
  * Author: WingMan Kwok <w-kwok2@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c
index 4cef7d4f9cd0..c4a4d7bd2766 100644
--- a/drivers/usb/dwc3/dwc3-of-simple.c
+++ b/drivers/usb/dwc3/dwc3-of-simple.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * dwc3-of-simple.c - OF glue layer for simple integrations
  *
@@ -5,15 +6,6 @@
  *
  * Author: Felipe Balbi <balbi@ti.com>
  *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  * This is a combination of the old dwc3-qcom.c by Ivan T. Ivanov
  * <iivanov@mm-sol.com> and the original patch adding support for Xilinx' SoC
  * by Subbaraya Sundeep Bhatta <subbaraya.sundeep.bhatta@xilinx.com>
@@ -28,11 +20,13 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
+#include <linux/reset.h>
 
 struct dwc3_of_simple {
 	struct device		*dev;
 	struct clk		**clks;
 	int			num_clocks;
+	struct reset_control	*resets;
 };
 
 static int dwc3_of_simple_clk_init(struct dwc3_of_simple *simple, int count)
@@ -95,10 +89,21 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, simple);
 	simple->dev = dev;
 
+	simple->resets = of_reset_control_array_get_optional_exclusive(np);
+	if (IS_ERR(simple->resets)) {
+		ret = PTR_ERR(simple->resets);
+		dev_err(dev, "failed to get device resets, err=%d\n", ret);
+		return ret;
+	}
+
+	ret = reset_control_deassert(simple->resets);
+	if (ret)
+		goto err_resetc_put;
+
 	ret = dwc3_of_simple_clk_init(simple, of_count_phandle_with_args(np,
 						"clocks", "#clock-cells"));
 	if (ret)
-		return ret;
+		goto err_resetc_assert;
 
 	ret = of_platform_populate(np, NULL, NULL, dev);
 	if (ret) {
@@ -107,7 +112,7 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
 			clk_put(simple->clks[i]);
 		}
 
-		return ret;
+		goto err_resetc_assert;
 	}
 
 	pm_runtime_set_active(dev);
@@ -115,6 +120,13 @@ static int dwc3_of_simple_probe(struct platform_device *pdev)
 	pm_runtime_get_sync(dev);
 
 	return 0;
+
+err_resetc_assert:
+	reset_control_assert(simple->resets);
+
+err_resetc_put:
+	reset_control_put(simple->resets);
+	return ret;
 }
 
 static int dwc3_of_simple_remove(struct platform_device *pdev)
@@ -123,12 +135,15 @@ static int dwc3_of_simple_remove(struct platform_device *pdev)
 	struct device		*dev = &pdev->dev;
 	int			i;
 
+	of_platform_depopulate(dev);
+
 	for (i = 0; i < simple->num_clocks; i++) {
 		clk_disable_unprepare(simple->clks[i]);
 		clk_put(simple->clks[i]);
 	}
 
-	of_platform_depopulate(dev);
+	reset_control_assert(simple->resets);
+	reset_control_put(simple->resets);
 
 	pm_runtime_put_sync(dev);
 	pm_runtime_disable(dev);
@@ -177,6 +192,7 @@ static const struct of_device_id of_dwc3_simple_match[] = {
 	{ .compatible = "rockchip,rk3399-dwc3" },
 	{ .compatible = "xlnx,zynqmp-dwc3" },
 	{ .compatible = "cavium,octeon-7130-usb-uctl" },
+	{ .compatible = "sprd,sc9860-dwc3" },
 	{ /* Sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, of_dwc3_simple_match);
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 3530795bbb8f..a4719e853b85 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * dwc3-omap.c - OMAP Specific Glue layer
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 54343fbd85ee..3ba11136ebf0 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * dwc3-pci.c - PCI Specific glue layer
  *
@@ -5,21 +6,13 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/pci.h>
+#include <linux/workqueue.h>
 #include <linux/pm_runtime.h>
 #include <linux/platform_device.h>
 #include <linux/gpio/consumer.h>
@@ -61,6 +54,7 @@ struct dwc3_pci {
 	guid_t guid;
 
 	unsigned int has_dsm_for_pm:1;
+	struct work_struct wakeup_work;
 };
 
 static const struct acpi_gpio_params reset_gpios = { 0, 0, false };
@@ -174,6 +168,22 @@ static int dwc3_pci_quirks(struct dwc3_pci *dwc)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static void dwc3_pci_resume_work(struct work_struct *work)
+{
+	struct dwc3_pci *dwc = container_of(work, struct dwc3_pci, wakeup_work);
+	struct platform_device *dwc3 = dwc->dwc3;
+	int ret;
+
+	ret = pm_runtime_get_sync(&dwc3->dev);
+	if (ret)
+		return;
+
+	pm_runtime_mark_last_busy(&dwc3->dev);
+	pm_runtime_put_sync_autosuspend(&dwc3->dev);
+}
+#endif
+
 static int dwc3_pci_probe(struct pci_dev *pci,
 		const struct pci_device_id *id)
 {
@@ -232,6 +242,9 @@ static int dwc3_pci_probe(struct pci_dev *pci,
 	device_init_wakeup(dev, true);
 	pci_set_drvdata(pci, dwc);
 	pm_runtime_put(dev);
+#ifdef CONFIG_PM
+	INIT_WORK(&dwc->wakeup_work, dwc3_pci_resume_work);
+#endif
 
 	return 0;
 err:
@@ -243,6 +256,9 @@ static void dwc3_pci_remove(struct pci_dev *pci)
 {
 	struct dwc3_pci		*dwc = pci_get_drvdata(pci);
 
+#ifdef CONFIG_PM
+	cancel_work_sync(&dwc->wakeup_work);
+#endif
 	device_init_wakeup(&pci->dev, false);
 	pm_runtime_get(&pci->dev);
 	platform_device_unregister(dwc->dwc3);
@@ -318,14 +334,15 @@ static int dwc3_pci_runtime_suspend(struct device *dev)
 static int dwc3_pci_runtime_resume(struct device *dev)
 {
 	struct dwc3_pci		*dwc = dev_get_drvdata(dev);
-	struct platform_device	*dwc3 = dwc->dwc3;
 	int			ret;
 
 	ret = dwc3_pci_dsm(dwc, PCI_INTEL_BXT_STATE_D0);
 	if (ret)
 		return ret;
 
-	return pm_runtime_get(&dwc3->dev);
+	queue_work(pm_wq, &dwc->wakeup_work);
+
+	return 0;
 }
 #endif /* CONFIG_PM */
 
diff --git a/drivers/usb/dwc3/dwc3-st.c b/drivers/usb/dwc3/dwc3-st.c
index 505676fd3ba4..16081383c401 100644
--- a/drivers/usb/dwc3/dwc3-st.c
+++ b/drivers/usb/dwc3/dwc3-st.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /**
  * dwc3-st.c Support for dwc3 platform devices on ST Microelectronics platforms
  *
@@ -10,11 +11,6 @@
  * Contributors: Aymen Bouattay <aymen.bouattay@st.com>
  *               Peter Griffin <peter.griffin@linaro.org>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * Inspired by dwc3-omap.c and dwc3-exynos.c.
  */
 
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 827e376bfa97..fd3e7ad2eb0e 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ep0.c - DesignWare USB3 DRD Controller Endpoint 0 Handling
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
@@ -487,14 +479,10 @@ static int dwc3_ep0_handle_device(struct dwc3 *dwc,
 static int dwc3_ep0_handle_intf(struct dwc3 *dwc,
 		struct usb_ctrlrequest *ctrl, int set)
 {
-	enum usb_device_state	state;
 	u32			wValue;
-	u32			wIndex;
 	int			ret = 0;
 
 	wValue = le16_to_cpu(ctrl->wValue);
-	wIndex = le16_to_cpu(ctrl->wIndex);
-	state = dwc->gadget.state;
 
 	switch (wValue) {
 	case USB_INTRF_FUNC_SUSPEND:
@@ -517,14 +505,10 @@ static int dwc3_ep0_handle_endpoint(struct dwc3 *dwc,
 		struct usb_ctrlrequest *ctrl, int set)
 {
 	struct dwc3_ep		*dep;
-	enum usb_device_state	state;
 	u32			wValue;
-	u32			wIndex;
 	int			ret;
 
 	wValue = le16_to_cpu(ctrl->wValue);
-	wIndex = le16_to_cpu(ctrl->wIndex);
-	state = dwc->gadget.state;
 
 	switch (wValue) {
 	case USB_ENDPOINT_HALT:
@@ -551,10 +535,8 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
 {
 	u32			recip;
 	int			ret;
-	enum usb_device_state	state;
 
 	recip = ctrl->bRequestType & USB_RECIP_MASK;
-	state = dwc->gadget.state;
 
 	switch (recip) {
 	case USB_RECIP_DEVICE:
@@ -712,12 +694,10 @@ static int dwc3_ep0_set_sel(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
 	struct dwc3_ep	*dep;
 	enum usb_device_state state = dwc->gadget.state;
 	u16		wLength;
-	u16		wValue;
 
 	if (state == USB_STATE_DEFAULT)
 		return -EINVAL;
 
-	wValue = le16_to_cpu(ctrl->wValue);
 	wLength = le16_to_cpu(ctrl->wLength);
 
 	if (wLength != 6) {
@@ -842,9 +822,6 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 	struct usb_request	*ur;
 	struct dwc3_trb		*trb;
 	struct dwc3_ep		*ep0;
-	unsigned		maxp;
-	unsigned		remaining_ur_length;
-	void			*buf;
 	u32			transferred = 0;
 	u32			status;
 	u32			length;
@@ -871,11 +848,8 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 	}
 
 	ur = &r->request;
-	buf = ur->buf;
-	remaining_ur_length = ur->length;
 
 	length = trb->size & DWC3_TRB_SIZE_MASK;
-	maxp = ep0->endpoint.maxpacket;
 	transferred = ur->length - length;
 	ur->actual += transferred;
 
@@ -990,6 +964,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 					 DWC3_TRBCTL_CONTROL_DATA,
 					 true);
 
+		req->trb = &dwc->ep0_trb[dep->trb_enqueue - 1];
+
 		/* Now prepare one extra TRB to align transfer size */
 		dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr,
 					 maxpacket - rem,
@@ -999,7 +975,6 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 	} else if (IS_ALIGNED(req->request.length, dep->endpoint.maxpacket) &&
 		   req->request.length && req->request.zero) {
 		u32	maxpacket;
-		u32	rem;
 
 		ret = usb_gadget_map_request_by_dev(dwc->sysdev,
 				&req->request, dep->number);
@@ -1007,7 +982,6 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 			return;
 
 		maxpacket = dep->endpoint.maxpacket;
-		rem = req->request.length % maxpacket;
 
 		/* prepare normal TRB */
 		dwc3_ep0_prepare_one_trb(dep, req->request.dma,
@@ -1015,6 +989,8 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 					 DWC3_TRBCTL_CONTROL_DATA,
 					 true);
 
+		req->trb = &dwc->ep0_trb[dep->trb_enqueue - 1];
+
 		/* Now prepare one extra TRB to align transfer size */
 		dwc3_ep0_prepare_one_trb(dep, dwc->bounce_addr,
 					 0, DWC3_TRBCTL_CONTROL_DATA,
@@ -1029,6 +1005,9 @@ static void __dwc3_ep0_do_control_data(struct dwc3 *dwc,
 		dwc3_ep0_prepare_one_trb(dep, req->request.dma,
 				req->request.length, DWC3_TRBCTL_CONTROL_DATA,
 				false);
+
+		req->trb = &dwc->ep0_trb[dep->trb_enqueue];
+
 		ret = dwc3_ep0_start_trans(dep);
 	}
 
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index f064f1549333..981fd986cf82 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * gadget.c - DesignWare USB3 DRD Controller Gadget Framework Link
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
@@ -1151,9 +1143,6 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep)
 
 	BUILD_BUG_ON_NOT_POWER_OF_2(DWC3_TRB_NUM);
 
-	if (!dwc3_calc_trbs_left(dep))
-		return;
-
 	/*
 	 * We can get in a situation where there's a request in the started list
 	 * but there weren't enough TRBs to fully kick it in the first time
@@ -1194,7 +1183,7 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep)
 	}
 }
 
-static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param)
+static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep)
 {
 	struct dwc3_gadget_ep_cmd_params params;
 	struct dwc3_request		*req;
@@ -1202,6 +1191,9 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param)
 	int				ret;
 	u32				cmd;
 
+	if (!dwc3_calc_trbs_left(dep))
+		return 0;
+
 	starting = !(dep->flags & DWC3_EP_BUSY);
 
 	dwc3_prepare_trbs(dep);
@@ -1216,8 +1208,10 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param)
 	if (starting) {
 		params.param0 = upper_32_bits(req->trb_dma);
 		params.param1 = lower_32_bits(req->trb_dma);
-		cmd = DWC3_DEPCMD_STARTTRANSFER |
-			DWC3_DEPCMD_PARAM(cmd_param);
+		cmd = DWC3_DEPCMD_STARTTRANSFER;
+
+		if (usb_endpoint_xfer_isoc(dep->endpoint.desc))
+			cmd |= DWC3_DEPCMD_PARAM(dep->frame_number);
 	} else {
 		cmd = DWC3_DEPCMD_UPDATETRANSFER |
 			DWC3_DEPCMD_PARAM(dep->resource_index);
@@ -1258,8 +1252,6 @@ static int __dwc3_gadget_get_frame(struct dwc3 *dwc)
 static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
 		struct dwc3_ep *dep, u32 cur_uf)
 {
-	u32 uf;
-
 	if (list_empty(&dep->pending_list)) {
 		dev_info(dwc->dev, "%s: ran out of requests\n",
 				dep->name);
@@ -1271,9 +1263,8 @@ static void __dwc3_gadget_start_isoc(struct dwc3 *dwc,
 	 * Schedule the first trb for one interval in the future or at
 	 * least 4 microframes.
 	 */
-	uf = cur_uf + max_t(u32, 4, dep->interval);
-
-	__dwc3_gadget_kick_transfer(dep, uf);
+	dep->frame_number = cur_uf + max_t(u32, 4, dep->interval);
+	__dwc3_gadget_kick_transfer(dep);
 }
 
 static void dwc3_gadget_start_isoc(struct dwc3 *dwc,
@@ -1290,7 +1281,6 @@ static void dwc3_gadget_start_isoc(struct dwc3 *dwc,
 static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 {
 	struct dwc3		*dwc = dep->dwc;
-	int			ret = 0;
 
 	if (!dep->endpoint.desc) {
 		dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n",
@@ -1337,24 +1327,14 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 		}
 
 		if ((dep->flags & DWC3_EP_BUSY) &&
-		    !(dep->flags & DWC3_EP_MISSED_ISOC)) {
-			WARN_ON_ONCE(!dep->resource_index);
-			ret = __dwc3_gadget_kick_transfer(dep,
-							  dep->resource_index);
-		}
-
-		goto out;
-	}
+		    !(dep->flags & DWC3_EP_MISSED_ISOC))
+			goto out;
 
-	if (!dwc3_calc_trbs_left(dep))
 		return 0;
+	}
 
-	ret = __dwc3_gadget_kick_transfer(dep, 0);
 out:
-	if (ret == -EBUSY)
-		ret = 0;
-
-	return ret;
+	return __dwc3_gadget_kick_transfer(dep);
 }
 
 static int dwc3_gadget_ep_queue(struct usb_ep *ep, struct usb_request *request,
@@ -2347,7 +2327,7 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
 		req->request.actual = length - req->remaining;
 
 		if ((req->request.actual < length) && req->num_pending_sgs)
-			return __dwc3_gadget_kick_transfer(dep, 0);
+			return __dwc3_gadget_kick_transfer(dep);
 
 		dwc3_gadget_giveback(dep, req, status);
 
@@ -2440,13 +2420,8 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
 	if (!dep->endpoint.desc)
 		return;
 
-	if (!usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
-		int ret;
-
-		ret = __dwc3_gadget_kick_transfer(dep, 0);
-		if (!ret || ret == -EBUSY)
-			return;
-	}
+	if (!usb_endpoint_xfer_isoc(dep->endpoint.desc))
+		__dwc3_gadget_kick_transfer(dep);
 }
 
 static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
@@ -2487,15 +2462,10 @@ static void dwc3_endpoint_interrupt(struct dwc3 *dwc,
 		dwc3_endpoint_transfer_complete(dwc, dep, event);
 		break;
 	case DWC3_DEPEVT_XFERNOTREADY:
-		if (usb_endpoint_xfer_isoc(dep->endpoint.desc)) {
+		if (usb_endpoint_xfer_isoc(dep->endpoint.desc))
 			dwc3_gadget_start_isoc(dwc, dep, event);
-		} else {
-			int ret;
-
-			ret = __dwc3_gadget_kick_transfer(dep, 0);
-			if (!ret || ret == -EBUSY)
-				return;
-		}
+		else
+			__dwc3_gadget_kick_transfer(dep);
 
 		break;
 	case DWC3_DEPEVT_STREAMEVT:
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 4a3227543255..578aa856f986 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * gadget.h - DesignWare USB3 DRD Gadget Header
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #ifndef __DRIVERS_USB_DWC3_GADGET_H
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
index 76f0b0df37c1..1a3878a3be78 100644
--- a/drivers/usb/dwc3/host.c
+++ b/drivers/usb/dwc3/host.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * host.c - DesignWare USB3 DRD Controller Host Glue
  *
  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/platform_device.h>
diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h
index c69b06696824..70acdf94a0bf 100644
--- a/drivers/usb/dwc3/io.h
+++ b/drivers/usb/dwc3/io.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * io.h - DesignWare USB3 DRD IO Header
  *
@@ -5,15 +6,6 @@
  *
  * Authors: Felipe Balbi <balbi@ti.com>,
  *	    Sebastian Andrzej Siewior <bigeasy@linutronix.de>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #ifndef __DRIVERS_USB_DWC3_IO_H
diff --git a/drivers/usb/dwc3/trace.c b/drivers/usb/dwc3/trace.c
index 6cd166412ad0..f8886f3f3c9e 100644
--- a/drivers/usb/dwc3/trace.c
+++ b/drivers/usb/dwc3/trace.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * trace.c - DesignWare USB3 DRD Controller Trace Support
  *
  * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
  *
  * Author: Felipe Balbi <balbi@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #define CREATE_TRACE_POINTS
diff --git a/drivers/usb/dwc3/trace.h b/drivers/usb/dwc3/trace.h
index 6504b116da04..a9dd5c64e6c7 100644
--- a/drivers/usb/dwc3/trace.h
+++ b/drivers/usb/dwc3/trace.h
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * trace.h - DesignWare USB3 DRD Controller Trace Support
  *
  * Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com
  *
  * Author: Felipe Balbi <balbi@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #undef TRACE_SYSTEM
diff --git a/drivers/usb/dwc3/ulpi.c b/drivers/usb/dwc3/ulpi.c
index e87ce8e9edee..f62b5f3c2d67 100644
--- a/drivers/usb/dwc3/ulpi.c
+++ b/drivers/usb/dwc3/ulpi.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * ulpi.c - DesignWare USB3 Controller's ULPI PHY interface
  *
  * Copyright (C) 2015 Intel Corporation
  *
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/ulpi/regs.h>
diff --git a/drivers/usb/early/Makefile b/drivers/usb/early/Makefile
index fcde2286da1c..7b77b49d3b8c 100644
--- a/drivers/usb/early/Makefile
+++ b/drivers/usb/early/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for early USB devices
 #
diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index e2654443e8eb..d633c2abe5a4 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Standalone EHCI usb debug driver
  *
diff --git a/drivers/usb/early/xhci-dbc.c b/drivers/usb/early/xhci-dbc.c
index 12fe70beae69..8a700b45b9a9 100644
--- a/drivers/usb/early/xhci-dbc.c
+++ b/drivers/usb/early/xhci-dbc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * xhci-dbc.c - xHCI debug capability early driver
  *
  * Copyright (C) 2016 Intel Corporation
  *
  * Author: Lu Baolu <baolu.lu@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #define pr_fmt(fmt)	KBUILD_MODNAME ":%s: " fmt, __func__
diff --git a/drivers/usb/early/xhci-dbc.h b/drivers/usb/early/xhci-dbc.h
index 2df0f6e613fe..673686eeddd7 100644
--- a/drivers/usb/early/xhci-dbc.h
+++ b/drivers/usb/early/xhci-dbc.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xhci-dbc.h - xHCI debug capability early driver
  *
  * Copyright (C) 2016 Intel Corporation
  *
  * Author: Lu Baolu <baolu.lu@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __LINUX_XHCI_DBC_H
@@ -90,8 +87,8 @@ struct xdbc_context {
 
 #define XDBC_INFO_CONTEXT_SIZE		48
 #define XDBC_MAX_STRING_LENGTH		64
-#define XDBC_STRING_MANUFACTURER	"Linux"
-#define XDBC_STRING_PRODUCT		"Remote GDB"
+#define XDBC_STRING_MANUFACTURER	"Linux Foundation"
+#define XDBC_STRING_PRODUCT		"Linux USB GDB Target"
 #define XDBC_STRING_SERIAL		"0001"
 
 struct xdbc_strings {
@@ -103,7 +100,7 @@ struct xdbc_strings {
 
 #define XDBC_PROTOCOL		1	/* GNU Remote Debug Command Set */
 #define XDBC_VENDOR_ID		0x1d6b	/* Linux Foundation 0x1d6b */
-#define XDBC_PRODUCT_ID		0x0004	/* __le16 idProduct; device 0004 */
+#define XDBC_PRODUCT_ID		0x0011	/* __le16 idProduct; device 0011 */
 #define XDBC_DEVICE_REV		0x0010	/* 0.10 */
 
 /*
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 598a67d6ba05..130dad7130b6 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # USB peripheral controller drivers
 #
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index dd74c99d6ce1..eec14e6ed20b 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * composite.c - infrastructure for Composite USB Gadgets
  *
  * Copyright (C) 2006-2008 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -170,20 +166,20 @@ int config_ep_by_speed(struct usb_gadget *g,
 			want_comp_desc = 1;
 			break;
 		}
-		/* else: Fall trough */
+		/* fall through */
 	case USB_SPEED_SUPER:
 		if (gadget_is_superspeed(g)) {
 			speed_desc = f->ss_descriptors;
 			want_comp_desc = 1;
 			break;
 		}
-		/* else: Fall trough */
+		/* fall through */
 	case USB_SPEED_HIGH:
 		if (gadget_is_dualspeed(g)) {
 			speed_desc = f->hs_descriptors;
 			break;
 		}
-		/* else: fall through */
+		/* fall through */
 	default:
 		speed_desc = f->fs_descriptors;
 	}
@@ -224,6 +220,7 @@ ep_found:
 		case USB_ENDPOINT_XFER_ISOC:
 			/* mult: bits 1:0 of bmAttributes */
 			_ep->mult = (comp_desc->bmAttributes & 0x3) + 1;
+			/* fall through */
 		case USB_ENDPOINT_XFER_BULK:
 		case USB_ENDPOINT_XFER_INT:
 			_ep->maxburst = comp_desc->bMaxBurst + 1;
@@ -2026,6 +2023,8 @@ static DEVICE_ATTR_RO(suspended);
 static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver)
 {
 	struct usb_composite_dev	*cdev = get_gadget_data(gadget);
+	struct usb_gadget_strings	*gstr = cdev->driver->strings[0];
+	struct usb_string		*dev_str = gstr->strings;
 
 	/* composite_disconnect() must already have been called
 	 * by the underlying peripheral controller driver!
@@ -2045,6 +2044,9 @@ static void __composite_unbind(struct usb_gadget *gadget, bool unbind_driver)
 
 	composite_dev_cleanup(cdev);
 
+	if (dev_str[USB_GADGET_MANUFACTURER_IDX].s == cdev->def_manufacturer)
+		dev_str[USB_GADGET_MANUFACTURER_IDX].s = "";
+
 	kfree(cdev->def_manufacturer);
 	kfree(cdev);
 	set_gadget_data(gadget, NULL);
diff --git a/drivers/usb/gadget/config.c b/drivers/usb/gadget/config.c
index 17a6077b89a4..2d115353424c 100644
--- a/drivers/usb/gadget/config.c
+++ b/drivers/usb/gadget/config.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * usb/gadget/config.c -- simplify building config descriptors
  *
  * Copyright (C) 2003 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/errno.h>
diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index a22a892de7b7..efba66ca0719 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/configfs.h>
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -505,13 +506,13 @@ static struct configfs_attribute *gadget_config_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type gadget_config_type = {
+static const struct config_item_type gadget_config_type = {
 	.ct_item_ops	= &gadget_config_item_ops,
 	.ct_attrs	= gadget_config_attrs,
 	.ct_owner	= THIS_MODULE,
 };
 
-static struct config_item_type gadget_root_type = {
+static const struct config_item_type gadget_root_type = {
 	.ct_item_ops	= &gadget_root_item_ops,
 	.ct_attrs	= gadget_root_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -593,7 +594,7 @@ static struct configfs_group_operations functions_ops = {
 	.drop_item      = &function_drop,
 };
 
-static struct config_item_type functions_type = {
+static const struct config_item_type functions_type = {
 	.ct_group_ops   = &functions_ops,
 	.ct_owner       = THIS_MODULE,
 };
@@ -694,7 +695,7 @@ static struct configfs_group_operations config_desc_ops = {
 	.drop_item      = &config_desc_drop,
 };
 
-static struct config_item_type config_desc_type = {
+static const struct config_item_type config_desc_type = {
 	.ct_group_ops   = &config_desc_ops,
 	.ct_owner       = THIS_MODULE,
 };
@@ -1143,11 +1144,12 @@ static struct configfs_attribute *interf_grp_attrs[] = {
 	NULL
 };
 
-int usb_os_desc_prepare_interf_dir(struct config_group *parent,
-				   int n_interf,
-				   struct usb_os_desc **desc,
-				   char **names,
-				   struct module *owner)
+struct config_group *usb_os_desc_prepare_interf_dir(
+		struct config_group *parent,
+		int n_interf,
+		struct usb_os_desc **desc,
+		char **names,
+		struct module *owner)
 {
 	struct config_group *os_desc_group;
 	struct config_item_type *os_desc_type, *interface_type;
@@ -1159,7 +1161,7 @@ int usb_os_desc_prepare_interf_dir(struct config_group *parent,
 
 	char *vlabuf = kzalloc(vla_group_size(data_chunk), GFP_KERNEL);
 	if (!vlabuf)
-		return -ENOMEM;
+		return ERR_PTR(-ENOMEM);
 
 	os_desc_group = vla_ptr(vlabuf, data_chunk, os_desc_group);
 	os_desc_type = vla_ptr(vlabuf, data_chunk, os_desc_type);
@@ -1184,7 +1186,7 @@ int usb_os_desc_prepare_interf_dir(struct config_group *parent,
 		configfs_add_default_group(&d->group, os_desc_group);
 	}
 
-	return 0;
+	return os_desc_group;
 }
 EXPORT_SYMBOL(usb_os_desc_prepare_interf_dir);
 
@@ -1475,7 +1477,7 @@ static struct configfs_group_operations gadgets_ops = {
 	.drop_item      = &gadgets_drop,
 };
 
-static struct config_item_type gadgets_type = {
+static const struct config_item_type gadgets_type = {
 	.ct_group_ops   = &gadgets_ops,
 	.ct_owner       = THIS_MODULE,
 };
diff --git a/drivers/usb/gadget/configfs.h b/drivers/usb/gadget/configfs.h
index 36c468c4f5e9..3b6f5298b2e8 100644
--- a/drivers/usb/gadget/configfs.h
+++ b/drivers/usb/gadget/configfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef USB__GADGET__CONFIGFS__H
 #define USB__GADGET__CONFIGFS__H
 
@@ -5,11 +6,12 @@
 
 void unregister_gadget_item(struct config_item *item);
 
-int usb_os_desc_prepare_interf_dir(struct config_group *parent,
-				   int n_interf,
-				   struct usb_os_desc **desc,
-				   char **names,
-				   struct module *owner);
+struct config_group *usb_os_desc_prepare_interf_dir(
+		struct config_group *parent,
+		int n_interf,
+		struct usb_os_desc **desc,
+		char **names,
+		struct module *owner);
 
 static inline struct usb_os_desc *to_usb_os_desc(struct config_item *item)
 {
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 30fdab0ae383..71b15c65b90f 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * epautoconf.c -- endpoint autoconfiguration for usb gadget drivers
  *
  * Copyright (C) 2004 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/function/Makefile b/drivers/usb/gadget/function/Makefile
index 86e825269947..5d3a6cf02218 100644
--- a/drivers/usb/gadget/function/Makefile
+++ b/drivers/usb/gadget/function/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # USB peripheral controller drivers
 #
diff --git a/drivers/usb/gadget/function/f_acm.c b/drivers/usb/gadget/function/f_acm.c
index 5e3828d9dac7..9fc98de83624 100644
--- a/drivers/usb/gadget/function/f_acm.c
+++ b/drivers/usb/gadget/function/f_acm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_acm.c -- USB CDC serial (ACM) function driver
  *
@@ -6,10 +7,6 @@
  * Copyright (C) 2008 by Nokia Corporation
  * Copyright (C) 2009 by Samsung Electronics
  * Author: Michal Nazarewicz (mina86@mina86.com)
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * either version 2 of that License or (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -786,7 +783,7 @@ static struct configfs_attribute *acm_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type acm_func_type = {
+static const struct config_item_type acm_func_type = {
 	.ct_item_ops    = &acm_item_ops,
 	.ct_attrs	= acm_attrs,
 	.ct_owner       = THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_ecm.c b/drivers/usb/gadget/function/f_ecm.c
index 4c488d15b6f6..b104ed0c1ab5 100644
--- a/drivers/usb/gadget/function/f_ecm.c
+++ b/drivers/usb/gadget/function/f_ecm.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_ecm.c -- USB CDC Ethernet (ECM) link function driver
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -845,7 +841,7 @@ static struct configfs_attribute *ecm_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type ecm_func_type = {
+static const struct config_item_type ecm_func_type = {
 	.ct_item_ops	= &ecm_item_ops,
 	.ct_attrs	= ecm_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_eem.c b/drivers/usb/gadget/function/f_eem.c
index 007ec6e4a5d4..37557651b600 100644
--- a/drivers/usb/gadget/function/f_eem.c
+++ b/drivers/usb/gadget/function/f_eem.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_eem.c -- USB CDC Ethernet (EEM) link function driver
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2008 Nokia Corporation
  * Copyright (C) 2009 EF Johnson Technologies
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
@@ -556,7 +552,7 @@ static struct configfs_attribute *eem_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type eem_func_type = {
+static const struct config_item_type eem_func_type = {
 	.ct_item_ops	= &eem_item_ops,
 	.ct_attrs	= eem_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index 9990944a7245..97ea059a7aa4 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_fs.c -- user mode file system API for USB composite function controllers
  *
@@ -7,11 +8,6 @@
  * Based on inode.c (GadgetFS) which was:
  * Copyright (C) 2003-2004 David Brownell
  * Copyright (C) 2003 Agilent Technologies
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 
@@ -46,7 +42,8 @@
 static void ffs_data_get(struct ffs_data *ffs);
 static void ffs_data_put(struct ffs_data *ffs);
 /* Creates new ffs_data object. */
-static struct ffs_data *__must_check ffs_data_new(void) __attribute__((malloc));
+static struct ffs_data *__must_check ffs_data_new(const char *dev_name)
+	__attribute__((malloc));
 
 /* Opened counter handling. */
 static void ffs_data_opened(struct ffs_data *ffs);
@@ -780,11 +777,12 @@ static void ffs_epfile_async_io_complete(struct usb_ep *_ep,
 					 struct usb_request *req)
 {
 	struct ffs_io_data *io_data = req->context;
+	struct ffs_data *ffs = io_data->ffs;
 
 	ENTER();
 
 	INIT_WORK(&io_data->work, ffs_user_copy_worker);
-	schedule_work(&io_data->work);
+	queue_work(ffs->io_completion_wq, &io_data->work);
 }
 
 static void __ffs_epfile_read_buffer_free(struct ffs_epfile *epfile)
@@ -1500,7 +1498,7 @@ ffs_fs_mount(struct file_system_type *t, int flags,
 	if (unlikely(ret < 0))
 		return ERR_PTR(ret);
 
-	ffs = ffs_data_new();
+	ffs = ffs_data_new(dev_name);
 	if (unlikely(!ffs))
 		return ERR_PTR(-ENOMEM);
 	ffs->file_perms = data.perms;
@@ -1610,6 +1608,7 @@ static void ffs_data_put(struct ffs_data *ffs)
 		BUG_ON(waitqueue_active(&ffs->ev.waitq) ||
 		       waitqueue_active(&ffs->ep0req_completion.wait) ||
 		       waitqueue_active(&ffs->wait));
+		destroy_workqueue(ffs->io_completion_wq);
 		kfree(ffs->dev_name);
 		kfree(ffs);
 	}
@@ -1642,7 +1641,7 @@ static void ffs_data_closed(struct ffs_data *ffs)
 	ffs_data_put(ffs);
 }
 
-static struct ffs_data *ffs_data_new(void)
+static struct ffs_data *ffs_data_new(const char *dev_name)
 {
 	struct ffs_data *ffs = kzalloc(sizeof *ffs, GFP_KERNEL);
 	if (unlikely(!ffs))
@@ -1650,6 +1649,12 @@ static struct ffs_data *ffs_data_new(void)
 
 	ENTER();
 
+	ffs->io_completion_wq = alloc_ordered_workqueue("%s", 0, dev_name);
+	if (!ffs->io_completion_wq) {
+		kfree(ffs);
+		return NULL;
+	}
+
 	refcount_set(&ffs->ref, 1);
 	atomic_set(&ffs->opened, 0);
 	ffs->state = FFS_READ_DESCRIPTORS;
@@ -3376,7 +3381,7 @@ static struct configfs_item_operations ffs_item_ops = {
 	.release	= ffs_attr_release,
 };
 
-static struct config_item_type ffs_func_type = {
+static const struct config_item_type ffs_func_type = {
 	.ct_item_ops	= &ffs_item_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -3668,6 +3673,7 @@ static void ffs_closed(struct ffs_data *ffs)
 		goto done;
 
 	ffs_obj->desc_ready = false;
+	ffs_obj->ffs_data = NULL;
 
 	if (test_and_clear_bit(FFS_FL_CALL_CLOSED_CALLBACK, &ffs->flags) &&
 	    ffs_obj->ffs_closed_callback)
diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
index d8e359ef6eb1..daae35318a3a 100644
--- a/drivers/usb/gadget/function/f_hid.c
+++ b/drivers/usb/gadget/function/f_hid.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_hid.c -- USB HID function driver
  *
  * Copyright (C) 2010 Fabien Chouteau <fabien.chouteau@barco.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
@@ -992,7 +988,7 @@ static struct configfs_attribute *hid_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type hid_func_type = {
+static const struct config_item_type hid_func_type = {
 	.ct_item_ops	= &hidg_item_ops,
 	.ct_attrs	= hid_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_loopback.c b/drivers/usb/gadget/function/f_loopback.c
index e70093835e14..1803646b3678 100644
--- a/drivers/usb/gadget/function/f_loopback.c
+++ b/drivers/usb/gadget/function/f_loopback.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_loopback.c - USB peripheral loopback configuration driver
  *
  * Copyright (C) 2003-2008 David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -556,7 +552,7 @@ static struct configfs_attribute *lb_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type lb_func_type = {
+static const struct config_item_type lb_func_type = {
 	.ct_item_ops    = &lb_item_ops,
 	.ct_attrs	= lb_attrs,
 	.ct_owner       = THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_mass_storage.c b/drivers/usb/gadget/function/f_mass_storage.c
index f95bddd6513f..acecd13dcbd9 100644
--- a/drivers/usb/gadget/function/f_mass_storage.c
+++ b/drivers/usb/gadget/function/f_mass_storage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * f_mass_storage.c -- Mass Storage USB Composite Function
  *
@@ -307,8 +308,6 @@ struct fsg_common {
 	struct completion	thread_notifier;
 	struct task_struct	*thread_task;
 
-	/* Callback functions. */
-	const struct fsg_operations	*ops;
 	/* Gadget's private data. */
 	void			*private_data;
 
@@ -686,9 +685,8 @@ static int do_read(struct fsg_common *common)
 
 		/* Perform the read */
 		file_offset_tmp = file_offset;
-		nread = vfs_read(curlun->filp,
-				 (char __user *)bh->buf,
-				 amount, &file_offset_tmp);
+		nread = kernel_read(curlun->filp, bh->buf, amount,
+				&file_offset_tmp);
 		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
 		      (unsigned long long)file_offset, (int)nread);
 		if (signal_pending(current))
@@ -883,8 +881,8 @@ static int do_write(struct fsg_common *common)
 
 		/* Perform the write */
 		file_offset_tmp = file_offset;
-		nwritten = vfs_write(curlun->filp, (char __user *)bh->buf,
-				amount, &file_offset_tmp);
+		nwritten = kernel_write(curlun->filp, bh->buf, amount,
+				&file_offset_tmp);
 		VLDBG(curlun, "file write %u @ %llu -> %d\n", amount,
 				(unsigned long long)file_offset, (int)nwritten);
 		if (signal_pending(current))
@@ -1021,9 +1019,8 @@ static int do_verify(struct fsg_common *common)
 
 		/* Perform the read */
 		file_offset_tmp = file_offset;
-		nread = vfs_read(curlun->filp,
-				(char __user *) bh->buf,
-				amount, &file_offset_tmp);
+		nread = kernel_read(curlun->filp, bh->buf, amount,
+				&file_offset_tmp);
 		VLDBG(curlun, "file read %u @ %llu -> %d\n", amount,
 				(unsigned long long) file_offset,
 				(int) nread);
@@ -2440,6 +2437,7 @@ static void handle_exception(struct fsg_common *common)
 static int fsg_main_thread(void *common_)
 {
 	struct fsg_common	*common = common_;
+	int			i;
 
 	/*
 	 * Allow the thread to be killed by a signal, but set the signal mask
@@ -2453,13 +2451,6 @@ static int fsg_main_thread(void *common_)
 	/* Allow the thread to be frozen */
 	set_freezable();
 
-	/*
-	 * Arrange for userspace references to be interpreted as kernel
-	 * pointers.  That way we can pass a kernel pointer to a routine
-	 * that expects a __user pointer and it will work okay.
-	 */
-	set_fs(get_ds());
-
 	/* The main loop */
 	while (common->state != FSG_STATE_TERMINATED) {
 		if (exception_in_progress(common) || signal_pending(current)) {
@@ -2485,21 +2476,16 @@ static int fsg_main_thread(void *common_)
 	common->thread_task = NULL;
 	spin_unlock_irq(&common->lock);
 
-	if (!common->ops || !common->ops->thread_exits
-	 || common->ops->thread_exits(common) < 0) {
-		int i;
+	/* Eject media from all LUNs */
 
-		down_write(&common->filesem);
-		for (i = 0; i < ARRAY_SIZE(common->luns); i++) {
-			struct fsg_lun *curlun = common->luns[i];
-			if (!curlun || !fsg_lun_is_open(curlun))
-				continue;
+	down_write(&common->filesem);
+	for (i = 0; i < ARRAY_SIZE(common->luns); i++) {
+		struct fsg_lun *curlun = common->luns[i];
 
+		if (curlun && fsg_lun_is_open(curlun))
 			fsg_lun_close(curlun);
-			curlun->unit_attention_data = SS_MEDIUM_NOT_PRESENT;
-		}
-		up_write(&common->filesem);
 	}
+	up_write(&common->filesem);
 
 	/* Let fsg_unbind() know the thread has exited */
 	complete_and_exit(&common->thread_notifier, 0);
@@ -2690,13 +2676,6 @@ void fsg_common_remove_luns(struct fsg_common *common)
 }
 EXPORT_SYMBOL_GPL(fsg_common_remove_luns);
 
-void fsg_common_set_ops(struct fsg_common *common,
-			const struct fsg_operations *ops)
-{
-	common->ops = ops;
-}
-EXPORT_SYMBOL_GPL(fsg_common_set_ops);
-
 void fsg_common_free_buffers(struct fsg_common *common)
 {
 	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
@@ -3162,7 +3141,7 @@ static struct configfs_attribute *fsg_lun_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type fsg_lun_type = {
+static const struct config_item_type fsg_lun_type = {
 	.ct_item_ops	= &fsg_lun_item_ops,
 	.ct_attrs	= fsg_lun_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -3353,7 +3332,7 @@ static struct configfs_group_operations fsg_group_ops = {
 	.drop_item	= fsg_lun_drop,
 };
 
-static struct config_item_type fsg_func_type = {
+static const struct config_item_type fsg_func_type = {
 	.ct_item_ops	= &fsg_item_ops,
 	.ct_group_ops	= &fsg_group_ops,
 	.ct_attrs	= fsg_attrs,
diff --git a/drivers/usb/gadget/function/f_mass_storage.h b/drivers/usb/gadget/function/f_mass_storage.h
index d3902313b8ac..58857fcf199f 100644
--- a/drivers/usb/gadget/function/f_mass_storage.h
+++ b/drivers/usb/gadget/function/f_mass_storage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef USB_F_MASS_STORAGE_H
 #define USB_F_MASS_STORAGE_H
 
@@ -60,17 +61,6 @@ struct fsg_module_parameters {
 struct fsg_common;
 
 /* FSF callback functions */
-struct fsg_operations {
-	/*
-	 * Callback function to call when thread exits.  If no
-	 * callback is set or it returns value lower then zero MSF
-	 * will force eject all LUNs it operates on (including those
-	 * marked as non-removable or with prevent_medium_removal flag
-	 * set).
-	 */
-	int (*thread_exits)(struct fsg_common *common);
-};
-
 struct fsg_lun_opts {
 	struct config_group group;
 	struct fsg_lun *lun;
@@ -142,9 +132,6 @@ void fsg_common_remove_lun(struct fsg_lun *lun);
 
 void fsg_common_remove_luns(struct fsg_common *common);
 
-void fsg_common_set_ops(struct fsg_common *common,
-			const struct fsg_operations *ops);
-
 int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 			  unsigned int id, const char *name,
 			  const char **name_pfx);
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 5d3d7941d2c2..4eb96b91cc40 100644
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_midi.c -- USB MIDI class function driver
  *
@@ -15,8 +16,6 @@
  * and drivers/usb/gadget/midi.c,
  *   Copyright (C) 2006 Thumtronics Pty Ltd.
  *   Ben Williamson <ben.williamson@greyinnovation.com>
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/kernel.h>
@@ -1189,7 +1188,7 @@ static struct configfs_attribute *midi_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type midi_func_type = {
+static const struct config_item_type midi_func_type = {
 	.ct_item_ops	= &midi_item_ops,
 	.ct_attrs	= midi_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c
index 45b334ceaf2e..c5bce8e22983 100644
--- a/drivers/usb/gadget/function/f_ncm.c
+++ b/drivers/usb/gadget/function/f_ncm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_ncm.c -- USB CDC Network (NCM) link function driver
  *
@@ -8,11 +9,6 @@
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
@@ -1568,7 +1564,7 @@ static struct configfs_attribute *ncm_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type ncm_func_type = {
+static const struct config_item_type ncm_func_type = {
 	.ct_item_ops	= &ncm_item_ops,
 	.ct_attrs	= ncm_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_obex.c b/drivers/usb/gadget/function/f_obex.c
index d43e86cea74f..55b7f57d2dc7 100644
--- a/drivers/usb/gadget/function/f_obex.c
+++ b/drivers/usb/gadget/function/f_obex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_obex.c -- USB CDC OBEX function driver
  *
@@ -5,11 +6,6 @@
  * Contact: Felipe Balbi <felipe.balbi@nokia.com>
  *
  * Based on f_acm.c by Al Borchers and David Brownell.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -411,7 +407,7 @@ static struct configfs_attribute *acm_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type obex_func_type = {
+static const struct config_item_type obex_func_type = {
 	.ct_item_ops	= &obex_item_ops,
 	.ct_attrs	= acm_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_phonet.c b/drivers/usb/gadget/function/f_phonet.c
index 9c4c58e4a1a2..7889bcc0509a 100644
--- a/drivers/usb/gadget/function/f_phonet.c
+++ b/drivers/usb/gadget/function/f_phonet.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * f_phonet.c -- USB CDC Phonet function
  *
  * Copyright (C) 2007-2008 Nokia Corporation. All rights reserved.
  *
  * Author: Rémi Denis-Courmont
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #include <linux/mm.h>
@@ -215,6 +212,7 @@ static void pn_tx_complete(struct usb_ep *ep, struct usb_request *req)
 	case -ESHUTDOWN: /* disconnected */
 	case -ECONNRESET: /* disabled */
 		dev->stats.tx_aborted_errors++;
+		/* fall through */
 	default:
 		dev->stats.tx_errors++;
 	}
@@ -362,6 +360,7 @@ static void pn_rx_complete(struct usb_ep *ep, struct usb_request *req)
 	/* Do resubmit in these cases: */
 	case -EOVERFLOW: /* request buffer overflow */
 		dev->stats.rx_over_errors++;
+		/* fall through */
 	default:
 		dev->stats.rx_errors++;
 		break;
@@ -599,7 +598,7 @@ static struct configfs_attribute *phonet_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type phonet_func_type = {
+static const struct config_item_type phonet_func_type = {
 	.ct_item_ops	= &phonet_item_ops,
 	.ct_attrs	= phonet_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c
index 8df244fc9d80..dd607b99eb1d 100644
--- a/drivers/usb/gadget/function/f_printer.c
+++ b/drivers/usb/gadget/function/f_printer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_printer.c - USB printer function driver
  *
@@ -8,11 +9,6 @@
  *
  * Copyright (C) 2003-2005 David Brownell
  * Copyright (C) 2006 Craig W. Nadler
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/module.h>
@@ -555,6 +551,7 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 	size_t			size;	/* Amount of data in a TX request. */
 	size_t			bytes_copied = 0;
 	struct usb_request	*req;
+	int			value;
 
 	DBG(dev, "printer_write trying to send %d bytes\n", (int)len);
 
@@ -634,7 +631,11 @@ printer_write(struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 			return -EAGAIN;
 		}
 
-		if (usb_ep_queue(dev->in_ep, req, GFP_ATOMIC)) {
+		/* here, we unlock, and only unlock, to avoid deadlock. */
+		spin_unlock(&dev->lock);
+		value = usb_ep_queue(dev->in_ep, req, GFP_ATOMIC);
+		spin_lock(&dev->lock);
+		if (value) {
 			list_add(&req->list, &dev->tx_reqs);
 			spin_unlock_irqrestore(&dev->lock, flags);
 			mutex_unlock(&dev->lock_printer_io);
@@ -1256,7 +1257,7 @@ static struct configfs_attribute *printer_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type printer_func_type = {
+static const struct config_item_type printer_func_type = {
 	.ct_item_ops	= &printer_item_ops,
 	.ct_attrs	= printer_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_rndis.c b/drivers/usb/gadget/function/f_rndis.c
index e1d5853ef1e4..d48df36622b7 100644
--- a/drivers/usb/gadget/function/f_rndis.c
+++ b/drivers/usb/gadget/function/f_rndis.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_rndis.c -- RNDIS link function driver
  *
@@ -6,11 +7,6 @@
  * Copyright (C) 2008 Nokia Corporation
  * Copyright (C) 2009 Samsung Electronics
  *                    Author: Michal Nazarewicz (mina86@mina86.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -890,7 +886,7 @@ static struct configfs_attribute *rndis_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type rndis_func_type = {
+static const struct config_item_type rndis_func_type = {
 	.ct_item_ops	= &rndis_item_ops,
 	.ct_attrs	= rndis_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -908,6 +904,7 @@ static void rndis_free_inst(struct usb_function_instance *f)
 			free_netdev(opts->net);
 	}
 
+	kfree(opts->rndis_interf_group);	/* single VLA chunk */
 	kfree(opts);
 }
 
@@ -916,6 +913,7 @@ static struct usb_function_instance *rndis_alloc_inst(void)
 	struct f_rndis_opts *opts;
 	struct usb_os_desc *descs[1];
 	char *names[1];
+	struct config_group *rndis_interf_group;
 
 	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
 	if (!opts)
@@ -940,8 +938,14 @@ static struct usb_function_instance *rndis_alloc_inst(void)
 	names[0] = "rndis";
 	config_group_init_type_name(&opts->func_inst.group, "",
 				    &rndis_func_type);
-	usb_os_desc_prepare_interf_dir(&opts->func_inst.group, 1, descs,
-				       names, THIS_MODULE);
+	rndis_interf_group =
+		usb_os_desc_prepare_interf_dir(&opts->func_inst.group, 1, descs,
+					       names, THIS_MODULE);
+	if (IS_ERR(rndis_interf_group)) {
+		rndis_free_inst(&opts->func_inst);
+		return ERR_CAST(rndis_interf_group);
+	}
+	opts->rndis_interf_group = rndis_interf_group;
 
 	return &opts->func_inst;
 }
diff --git a/drivers/usb/gadget/function/f_serial.c b/drivers/usb/gadget/function/f_serial.c
index cb00ada21d9c..c860f30a0ea2 100644
--- a/drivers/usb/gadget/function/f_serial.c
+++ b/drivers/usb/gadget/function/f_serial.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_serial.c - generic USB serial function driver
  *
  * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
  * Copyright (C) 2008 by David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * either version 2 of that License or (at your option) any later version.
  */
 
 #include <linux/slab.h>
@@ -281,7 +278,7 @@ static struct configfs_attribute *acm_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type serial_func_type = {
+static const struct config_item_type serial_func_type = {
 	.ct_item_ops	= &serial_item_ops,
 	.ct_attrs	= acm_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 8784fa12ea2c..9cdef108fb1b 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_sourcesink.c - USB peripheral source/sink configuration driver
  *
  * Copyright (C) 2003-2008 David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -1230,7 +1226,7 @@ static struct configfs_attribute *ss_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type ss_func_type = {
+static const struct config_item_type ss_func_type = {
 	.ct_item_ops    = &ss_item_ops,
 	.ct_attrs	= ss_attrs,
 	.ct_owner       = THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_subset.c b/drivers/usb/gadget/function/f_subset.c
index 434b983f3b4c..4d945254905d 100644
--- a/drivers/usb/gadget/function/f_subset.c
+++ b/drivers/usb/gadget/function/f_subset.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_subset.c -- "CDC Subset" Ethernet link function driver
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/slab.h>
@@ -412,7 +408,7 @@ static struct configfs_attribute *gether_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type gether_func_type = {
+static const struct config_item_type gether_func_type = {
 	.ct_item_ops	= &gether_item_ops,
 	.ct_attrs	= gether_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_tcm.c b/drivers/usb/gadget/function/f_tcm.c
index a82e2bd5ea34..da81cf16b850 100644
--- a/drivers/usb/gadget/function/f_tcm.c
+++ b/drivers/usb/gadget/function/f_tcm.c
@@ -1,10 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Target based USB-Gadget
  *
  * UAS protocol handling, target callbacks, configfs handling,
  * BBB (USB Mass Storage Class Bulk-Only (BBB) and Transport protocol handling.
  *
  * Author: Sebastian Andrzej Siewior <bigeasy at linutronix dot de>
- * License: GPLv2 as published by FSF.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -1145,6 +1145,7 @@ static int usbg_submit_command(struct f_uas *fu,
 	default:
 		pr_debug_once("Unsupported prio_attr: %02x.\n",
 				cmd_iu->prio_attr);
+		/* fall through */
 	case UAS_SIMPLE_TAG:
 		cmd->prio_attr = TCM_SIMPLE_TAG;
 		break;
@@ -2166,7 +2167,7 @@ static struct configfs_item_operations tcm_item_ops = {
 	.release		= tcm_attr_release,
 };
 
-static struct config_item_type tcm_func_type = {
+static const struct config_item_type tcm_func_type = {
 	.ct_item_ops	= &tcm_item_ops,
 	.ct_owner	= THIS_MODULE,
 };
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 29efbedc91f9..2746a926a8d9 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_uac1.c -- USB Audio Class 1.0 Function (using u_audio API)
  *
@@ -10,11 +11,6 @@
  * This file is based on f_uac1.c which is
  *   Copyright (C) 2008 Bryan Wu <cooloney@kernel.org>
  *   Copyright (C) 2008 Analog Devices, Inc
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/usb/audio.h>
@@ -709,7 +705,7 @@ static struct configfs_attribute *f_uac1_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type f_uac1_func_type = {
+static const struct config_item_type f_uac1_func_type = {
 	.ct_item_ops	= &f_uac1_item_ops,
 	.ct_attrs	= f_uac1_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_uac1_legacy.c b/drivers/usb/gadget/function/f_uac1_legacy.c
index 5d229e72912e..04f4b2862256 100644
--- a/drivers/usb/gadget/function/f_uac1_legacy.c
+++ b/drivers/usb/gadget/function/f_uac1_legacy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_audio.c -- USB Audio class function driver
   *
@@ -5,8 +6,6 @@
  * Copyright (C) 2008 Analog Devices, Inc
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/slab.h>
@@ -921,7 +920,7 @@ static struct configfs_attribute *f_uac1_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type f_uac1_func_type = {
+static const struct config_item_type f_uac1_func_type = {
 	.ct_item_ops	= &f_uac1_item_ops,
 	.ct_attrs	= f_uac1_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_uac2.c b/drivers/usb/gadget/function/f_uac2.c
index f05c3f3e6103..11fe788b4308 100644
--- a/drivers/usb/gadget/function/f_uac2.c
+++ b/drivers/usb/gadget/function/f_uac2.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * f_uac2.c -- USB Audio Class 2.0 Function
  *
  * Copyright (C) 2011
  *    Yadwinder Singh (yadi.brar01@gmail.com)
  *    Jaswinder Singh (jaswinder.singh@linaro.org)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/usb/audio.h>
@@ -921,7 +917,7 @@ static struct configfs_attribute *f_uac2_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type f_uac2_func_type = {
+static const struct config_item_type f_uac2_func_type = {
 	.ct_item_ops	= &f_uac2_item_ops,
 	.ct_attrs	= f_uac2_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c
index f8a1881609a2..439eba660e95 100644
--- a/drivers/usb/gadget/function/f_uvc.c
+++ b/drivers/usb/gadget/function/f_uvc.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	uvc_gadget.c  --  USB Video Class Gadget driver
  *
  *	Copyright (C) 2009-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/function/f_uvc.h b/drivers/usb/gadget/function/f_uvc.h
index d0a73bdcbba1..81defe4557fe 100644
--- a/drivers/usb/gadget/function/f_uvc.h
+++ b/drivers/usb/gadget/function/f_uvc.h
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	f_uvc.h  --  USB Video Class Gadget driver
  *
  *	Copyright (C) 2009-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #ifndef _F_UVC_H_
diff --git a/drivers/usb/gadget/function/g_zero.h b/drivers/usb/gadget/function/g_zero.h
index 492924d0d599..98b8462ad538 100644
--- a/drivers/usb/gadget/function/g_zero.h
+++ b/drivers/usb/gadget/function/g_zero.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header declares the utility functions used by "Gadget Zero", plus
  * interfaces to its two single-configuration function drivers.
diff --git a/drivers/usb/gadget/function/rndis.c b/drivers/usb/gadget/function/rndis.c
index d6341045c631..51dd3e90b06c 100644
--- a/drivers/usb/gadget/function/rndis.c
+++ b/drivers/usb/gadget/function/rndis.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * RNDIS MSG parser
  *
  * Authors:	Benedikt Spranger, Pengutronix
  *		Robert Schwebel, Pengutronix
  *
- *              This program is free software; you can redistribute it and/or
- *              modify it under the terms of the GNU General Public License
- *              version 2, as published by the Free Software Foundation.
- *
  *		This software was originally developed in conformance with
  *		Microsoft's Remote NDIS Specification License Agreement.
  *
diff --git a/drivers/usb/gadget/function/rndis.h b/drivers/usb/gadget/function/rndis.h
index 21e0430ffb98..c7e3a70ce6c1 100644
--- a/drivers/usb/gadget/function/rndis.h
+++ b/drivers/usb/gadget/function/rndis.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * RNDIS	Definitions for Remote NDIS
  *
  * Authors:	Benedikt Spranger, Pengutronix
  *		Robert Schwebel, Pengutronix
  *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		version 2, as published by the Free Software Foundation.
- *
  *		This software was originally developed in conformance with
  *		Microsoft's Remote NDIS Specification License Agreement.
  */
diff --git a/drivers/usb/gadget/function/storage_common.c b/drivers/usb/gadget/function/storage_common.c
index 8fbf6861690d..f7e6c42558eb 100644
--- a/drivers/usb/gadget/function/storage_common.c
+++ b/drivers/usb/gadget/function/storage_common.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * storage_common.c -- Common definitions for mass storage functionality
  *
  * Copyright (C) 2003-2008 Alan Stern
  * Copyeight (C) 2009 Samsung Electronics
  * Author: Michal Nazarewicz (mina86@mina86.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /*
diff --git a/drivers/usb/gadget/function/storage_common.h b/drivers/usb/gadget/function/storage_common.h
index e0814a960132..e5e3a2553aaa 100644
--- a/drivers/usb/gadget/function/storage_common.h
+++ b/drivers/usb/gadget/function/storage_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef USB_STORAGE_COMMON_H
 #define USB_STORAGE_COMMON_H
 
diff --git a/drivers/usb/gadget/function/tcm.h b/drivers/usb/gadget/function/tcm.h
index a27e6e34db0b..3cd565794ad7 100644
--- a/drivers/usb/gadget/function/tcm.h
+++ b/drivers/usb/gadget/function/tcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TARGET_USB_GADGET_H__
 #define __TARGET_USB_GADGET_H__
 
diff --git a/drivers/usb/gadget/function/u_audio.c b/drivers/usb/gadget/function/u_audio.c
index 3971bbab88bd..a72295c953bb 100644
--- a/drivers/usb/gadget/function/u_audio.c
+++ b/drivers/usb/gadget/function/u_audio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_audio.c -- interface to USB gadget "ALSA sound card" utilities
  *
@@ -9,16 +10,6 @@
  *    Copyright (C) 2011
  *    Yadwinder Singh (yadi.brar01@gmail.com)
  *    Jaswinder Singh (jaswinder.singh@linaro.org)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/function/u_audio.h b/drivers/usb/gadget/function/u_audio.h
index 07e13784cbb8..81d3d4ed6dfb 100644
--- a/drivers/usb/gadget/function/u_audio.h
+++ b/drivers/usb/gadget/function/u_audio.h
@@ -1,19 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_audio.h -- interface to USB gadget "ALSA sound card" utilities
  *
  * Copyright (C) 2016
  * Author: Ruslan Bilovol <ruslan.bilovol@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef __U_AUDIO_H
diff --git a/drivers/usb/gadget/function/u_ecm.h b/drivers/usb/gadget/function/u_ecm.h
index 262cc03cc2c0..050aa672ee7f 100644
--- a/drivers/usb/gadget/function/u_ecm.h
+++ b/drivers/usb/gadget/function/u_ecm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_ecm.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_ECM_H
diff --git a/drivers/usb/gadget/function/u_eem.h b/drivers/usb/gadget/function/u_eem.h
index e3ae97874c4f..de3828d3e8f0 100644
--- a/drivers/usb/gadget/function/u_eem.h
+++ b/drivers/usb/gadget/function/u_eem.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_eem.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_EEM_H
diff --git a/drivers/usb/gadget/function/u_ether.c b/drivers/usb/gadget/function/u_ether.c
index bdbc3fdc7c4f..6fcda62f55ea 100644
--- a/drivers/usb/gadget/function/u_ether.c
+++ b/drivers/usb/gadget/function/u_ether.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_ether.c -- Ethernet-over-USB link layer utilities for Gadget stack
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
diff --git a/drivers/usb/gadget/function/u_ether.h b/drivers/usb/gadget/function/u_ether.h
index c77145bd6b5b..332307d54292 100644
--- a/drivers/usb/gadget/function/u_ether.h
+++ b/drivers/usb/gadget/function/u_ether.h
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_ether.h -- interface to USB gadget "ethernet link" utilities
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef __U_ETHER_H
diff --git a/drivers/usb/gadget/function/u_ether_configfs.h b/drivers/usb/gadget/function/u_ether_configfs.h
index e4c3f84af4c3..cd33cee4d78b 100644
--- a/drivers/usb/gadget/function/u_ether_configfs.h
+++ b/drivers/usb/gadget/function/u_ether_configfs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_ether_configfs.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __U_ETHER_CONFIGFS_H
diff --git a/drivers/usb/gadget/function/u_fs.h b/drivers/usb/gadget/function/u_fs.h
index 540f1c48c1a8..c3aba4dfa958 100644
--- a/drivers/usb/gadget/function/u_fs.h
+++ b/drivers/usb/gadget/function/u_fs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_fs.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_FFS_H
@@ -279,6 +276,7 @@ struct ffs_data {
 	}				file_perms;
 
 	struct eventfd_ctx *ffs_eventfd;
+	struct workqueue_struct *io_completion_wq;
 	bool no_disconnect;
 	struct work_struct reset_work;
 
diff --git a/drivers/usb/gadget/function/u_gether.h b/drivers/usb/gadget/function/u_gether.h
index d4078426ba5d..5b7e2eb90336 100644
--- a/drivers/usb/gadget/function/u_gether.h
+++ b/drivers/usb/gadget/function/u_gether.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_gether.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_GETHER_H
diff --git a/drivers/usb/gadget/function/u_hid.h b/drivers/usb/gadget/function/u_hid.h
index aaa0e368a159..2f5ca4bfa7ff 100644
--- a/drivers/usb/gadget/function/u_hid.h
+++ b/drivers/usb/gadget/function/u_hid.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_hid.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_HID_H
diff --git a/drivers/usb/gadget/function/u_midi.h b/drivers/usb/gadget/function/u_midi.h
index 22510189758e..5599aa5fc977 100644
--- a/drivers/usb/gadget/function/u_midi.h
+++ b/drivers/usb/gadget/function/u_midi.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_midi.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_MIDI_H
diff --git a/drivers/usb/gadget/function/u_ncm.h b/drivers/usb/gadget/function/u_ncm.h
index ce0f3a78ca13..67324f983343 100644
--- a/drivers/usb/gadget/function/u_ncm.h
+++ b/drivers/usb/gadget/function/u_ncm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_ncm.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_NCM_H
diff --git a/drivers/usb/gadget/function/u_phonet.h b/drivers/usb/gadget/function/u_phonet.h
index 98ced18779ea..12fb613f85d1 100644
--- a/drivers/usb/gadget/function/u_phonet.h
+++ b/drivers/usb/gadget/function/u_phonet.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_phonet.h - interface to Phonet
  *
  * Copyright (C) 2007-2008 by Nokia Corporation
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * either version 2 of that License or (at your option) any later version.
  */
 
 #ifndef __U_PHONET_H
diff --git a/drivers/usb/gadget/function/u_printer.h b/drivers/usb/gadget/function/u_printer.h
index 8d30b7577f87..6088ff744194 100644
--- a/drivers/usb/gadget/function/u_printer.h
+++ b/drivers/usb/gadget/function/u_printer.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_printer.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_PRINTER_H
diff --git a/drivers/usb/gadget/function/u_rndis.h b/drivers/usb/gadget/function/u_rndis.h
index a35ee3c2545d..d65fb4ebac3c 100644
--- a/drivers/usb/gadget/function/u_rndis.h
+++ b/drivers/usb/gadget/function/u_rndis.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_rndis.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_RNDIS_H
@@ -26,6 +23,7 @@ struct f_rndis_opts {
 	bool				bound;
 	bool				borrowed_net;
 
+	struct config_group		*rndis_interf_group;
 	struct usb_os_desc		rndis_os_desc;
 	char				rndis_ext_compat_id[16];
 
diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 4176216d54be..4d653d2960d4 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_serial.c - utilities for USB gadget "serial port"/TTY support
  *
@@ -9,10 +10,6 @@
  * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (C) 2000 Peter Berger (pberger@brimson.com)
  * Copyright (C) 2000 Al Borchers (alborchers@steinerpoint.com)
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * either version 2 of that License or (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -1078,6 +1075,7 @@ static void gs_complete_out(struct usb_ep *ep, struct usb_request *req)
 	default:
 		pr_warn("%s: unexpected %s status %d\n",
 			__func__, ep->name, req->status);
+		/* fall through */
 	case 0:
 		/* normal completion */
 		spin_lock(&info->con_lock);
diff --git a/drivers/usb/gadget/function/u_serial.h b/drivers/usb/gadget/function/u_serial.h
index c20210c0babd..9acaac1cbb75 100644
--- a/drivers/usb/gadget/function/u_serial.h
+++ b/drivers/usb/gadget/function/u_serial.h
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_serial.h - interface to USB gadget "serial port"/TTY utilities
  *
  * Copyright (C) 2008 David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * either version 2 of that License or (at your option) any later version.
  */
 
 #ifndef __U_SERIAL_H
diff --git a/drivers/usb/gadget/function/u_tcm.h b/drivers/usb/gadget/function/u_tcm.h
index 0bd751e0483f..3f7ccecb0f9b 100644
--- a/drivers/usb/gadget/function/u_tcm.h
+++ b/drivers/usb/gadget/function/u_tcm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_tcm.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_TCM_H
diff --git a/drivers/usb/gadget/function/u_uac1.h b/drivers/usb/gadget/function/u_uac1.h
index 6f188fd8633f..6f1a9d73defe 100644
--- a/drivers/usb/gadget/function/u_uac1.h
+++ b/drivers/usb/gadget/function/u_uac1.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_uac1.h - Utility definitions for UAC1 function
  *
  * Copyright (C) 2016 Ruslan Bilovol <ruslan.bilovol@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __U_UAC1_H
diff --git a/drivers/usb/gadget/function/u_uac1_legacy.c b/drivers/usb/gadget/function/u_uac1_legacy.c
index fa4684a1c54c..cbc868d117af 100644
--- a/drivers/usb/gadget/function/u_uac1_legacy.c
+++ b/drivers/usb/gadget/function/u_uac1_legacy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_uac1.c -- ALSA audio utilities for Gadget stack
  *
@@ -5,8 +6,6 @@
  * Copyright (C) 2008 Analog Devices, Inc
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/function/u_uac1_legacy.h b/drivers/usb/gadget/function/u_uac1_legacy.h
index d715b1af56a4..dd69e408a3d9 100644
--- a/drivers/usb/gadget/function/u_uac1_legacy.h
+++ b/drivers/usb/gadget/function/u_uac1_legacy.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * u_uac1.h -- interface to USB gadget "ALSA AUDIO" utilities
  *
@@ -5,8 +6,6 @@
  * Copyright (C) 2008 Analog Devices, Inc
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #ifndef __U_UAC1_LEGACY_H
diff --git a/drivers/usb/gadget/function/u_uac2.h b/drivers/usb/gadget/function/u_uac2.h
index 19eeb83538a5..8362ee572e1e 100644
--- a/drivers/usb/gadget/function/u_uac2.h
+++ b/drivers/usb/gadget/function/u_uac2.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_uac2.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_UAC2_H
diff --git a/drivers/usb/gadget/function/u_uvc.h b/drivers/usb/gadget/function/u_uvc.h
index 4676b60a5063..d00d3ded71c0 100644
--- a/drivers/usb/gadget/function/u_uvc.h
+++ b/drivers/usb/gadget/function/u_uvc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_uvc.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef U_UVC_H
diff --git a/drivers/usb/gadget/function/uvc.h b/drivers/usb/gadget/function/uvc.h
index 11d70dead32b..a64e07e61f8c 100644
--- a/drivers/usb/gadget/function/uvc.h
+++ b/drivers/usb/gadget/function/uvc.h
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	uvc_gadget.h  --  USB Video Class Gadget driver
  *
  *	Copyright (C) 2009-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #ifndef _UVC_GADGET_H_
diff --git a/drivers/usb/gadget/function/uvc_configfs.c b/drivers/usb/gadget/function/uvc_configfs.c
index 844cb738bafd..c9b8cc4aae5a 100644
--- a/drivers/usb/gadget/function/uvc_configfs.c
+++ b/drivers/usb/gadget/function/uvc_configfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * uvc_configfs.c
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include "u_uvc.h"
 #include "uvc_configfs.h"
@@ -127,7 +124,7 @@ static struct configfs_attribute *uvcg_control_header_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_control_header_type = {
+static const struct config_item_type uvcg_control_header_type = {
 	.ct_attrs	= uvcg_control_header_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -170,7 +167,7 @@ static struct configfs_group_operations uvcg_control_header_grp_ops = {
 	.drop_item		= uvcg_control_header_drop,
 };
 
-static struct config_item_type uvcg_control_header_grp_type = {
+static const struct config_item_type uvcg_control_header_grp_type = {
 	.ct_group_ops	= &uvcg_control_header_grp_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -265,7 +262,7 @@ static struct configfs_attribute *uvcg_default_processing_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_default_processing_type = {
+static const struct config_item_type uvcg_default_processing_type = {
 	.ct_attrs	= uvcg_default_processing_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -277,7 +274,7 @@ static struct uvcg_processing_grp {
 	struct config_group	group;
 } uvcg_processing_grp;
 
-static struct config_item_type uvcg_processing_grp_type = {
+static const struct config_item_type uvcg_processing_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -382,7 +379,7 @@ static struct configfs_attribute *uvcg_default_camera_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_default_camera_type = {
+static const struct config_item_type uvcg_default_camera_type = {
 	.ct_attrs	= uvcg_default_camera_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -394,7 +391,7 @@ static struct uvcg_camera_grp {
 	struct config_group	group;
 } uvcg_camera_grp;
 
-static struct config_item_type uvcg_camera_grp_type = {
+static const struct config_item_type uvcg_camera_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -460,7 +457,7 @@ static struct configfs_attribute *uvcg_default_output_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_default_output_type = {
+static const struct config_item_type uvcg_default_output_type = {
 	.ct_attrs	= uvcg_default_output_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -472,7 +469,7 @@ static struct uvcg_output_grp {
 	struct config_group	group;
 } uvcg_output_grp;
 
-static struct config_item_type uvcg_output_grp_type = {
+static const struct config_item_type uvcg_output_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -481,7 +478,7 @@ static struct uvcg_terminal_grp {
 	struct config_group	group;
 } uvcg_terminal_grp;
 
-static struct config_item_type uvcg_terminal_grp_type = {
+static const struct config_item_type uvcg_terminal_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -586,7 +583,7 @@ static struct configfs_item_operations uvcg_control_class_item_ops = {
 	.drop_link	= uvcg_control_class_drop_link,
 };
 
-static struct config_item_type uvcg_control_class_type = {
+static const struct config_item_type uvcg_control_class_type = {
 	.ct_item_ops	= &uvcg_control_class_item_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -596,7 +593,7 @@ static struct uvcg_control_class_grp {
 	struct config_group	group;
 } uvcg_control_class_grp;
 
-static struct config_item_type uvcg_control_class_grp_type = {
+static const struct config_item_type uvcg_control_class_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -605,7 +602,7 @@ static struct uvcg_control_grp {
 	struct config_group	group;
 } uvcg_control_grp;
 
-static struct config_item_type uvcg_control_grp_type = {
+static const struct config_item_type uvcg_control_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -857,7 +854,7 @@ static struct configfs_attribute *uvcg_streaming_header_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_streaming_header_type = {
+static const struct config_item_type uvcg_streaming_header_type = {
 	.ct_item_ops	= &uvcg_streaming_header_item_ops,
 	.ct_attrs	= uvcg_streaming_header_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -901,7 +898,7 @@ static struct configfs_group_operations uvcg_streaming_header_grp_ops = {
 	.drop_item		= uvcg_streaming_header_drop,
 };
 
-static struct config_item_type uvcg_streaming_header_grp_type = {
+static const struct config_item_type uvcg_streaming_header_grp_type = {
 	.ct_group_ops	= &uvcg_streaming_header_grp_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -1150,7 +1147,7 @@ static struct configfs_attribute *uvcg_frame_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_frame_type = {
+static const struct config_item_type uvcg_frame_type = {
 	.ct_attrs	= uvcg_frame_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -1419,7 +1416,7 @@ static struct configfs_attribute *uvcg_uncompressed_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_uncompressed_type = {
+static const struct config_item_type uvcg_uncompressed_type = {
 	.ct_group_ops	= &uvcg_uncompressed_group_ops,
 	.ct_attrs	= uvcg_uncompressed_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -1469,7 +1466,7 @@ static struct configfs_group_operations uvcg_uncompressed_grp_ops = {
 	.drop_item		= uvcg_uncompressed_drop,
 };
 
-static struct config_item_type uvcg_uncompressed_grp_type = {
+static const struct config_item_type uvcg_uncompressed_grp_type = {
 	.ct_group_ops	= &uvcg_uncompressed_grp_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -1619,7 +1616,7 @@ static struct configfs_attribute *uvcg_mjpeg_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_mjpeg_type = {
+static const struct config_item_type uvcg_mjpeg_type = {
 	.ct_group_ops	= &uvcg_mjpeg_group_ops,
 	.ct_attrs	= uvcg_mjpeg_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -1663,7 +1660,7 @@ static struct configfs_group_operations uvcg_mjpeg_grp_ops = {
 	.drop_item		= uvcg_mjpeg_drop,
 };
 
-static struct config_item_type uvcg_mjpeg_grp_type = {
+static const struct config_item_type uvcg_mjpeg_grp_type = {
 	.ct_group_ops	= &uvcg_mjpeg_grp_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -1728,7 +1725,7 @@ static struct configfs_attribute *uvcg_default_color_matching_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvcg_default_color_matching_type = {
+static const struct config_item_type uvcg_default_color_matching_type = {
 	.ct_attrs	= uvcg_default_color_matching_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -1740,7 +1737,7 @@ static struct uvcg_color_matching_grp {
 	struct config_group	group;
 } uvcg_color_matching_grp;
 
-static struct config_item_type uvcg_color_matching_grp_type = {
+static const struct config_item_type uvcg_color_matching_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -2085,7 +2082,7 @@ static struct configfs_item_operations uvcg_streaming_class_item_ops = {
 	.drop_link	= uvcg_streaming_class_drop_link,
 };
 
-static struct config_item_type uvcg_streaming_class_type = {
+static const struct config_item_type uvcg_streaming_class_type = {
 	.ct_item_ops	= &uvcg_streaming_class_item_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -2095,7 +2092,7 @@ static struct uvcg_streaming_class_grp {
 	struct config_group	group;
 } uvcg_streaming_class_grp;
 
-static struct config_item_type uvcg_streaming_class_grp_type = {
+static const struct config_item_type uvcg_streaming_class_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -2104,7 +2101,7 @@ static struct uvcg_streaming_grp {
 	struct config_group	group;
 } uvcg_streaming_grp;
 
-static struct config_item_type uvcg_streaming_grp_type = {
+static const struct config_item_type uvcg_streaming_grp_type = {
 	.ct_owner = THIS_MODULE,
 };
 
@@ -2190,7 +2187,7 @@ static struct configfs_attribute *uvc_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type uvc_func_type = {
+static const struct config_item_type uvc_func_type = {
 	.ct_item_ops	= &uvc_item_ops,
 	.ct_attrs	= uvc_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/drivers/usb/gadget/function/uvc_configfs.h b/drivers/usb/gadget/function/uvc_configfs.h
index 085e67be7c71..8549c0b27b9d 100644
--- a/drivers/usb/gadget/function/uvc_configfs.h
+++ b/drivers/usb/gadget/function/uvc_configfs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * uvc_configfs.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #ifndef UVC_CONFIGFS_H
 #define UVC_CONFIGFS_H
diff --git a/drivers/usb/gadget/function/uvc_queue.c b/drivers/usb/gadget/function/uvc_queue.c
index 6377e9fee6e5..278d50ff1eea 100644
--- a/drivers/usb/gadget/function/uvc_queue.c
+++ b/drivers/usb/gadget/function/uvc_queue.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	uvc_queue.c  --  USB Video Class driver - Buffers management
  *
  *	Copyright (C) 2005-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #include <linux/atomic.h>
diff --git a/drivers/usb/gadget/function/uvc_queue.h b/drivers/usb/gadget/function/uvc_queue.h
index ac461a9a1a70..51ee94e5cf2b 100644
--- a/drivers/usb/gadget/function/uvc_queue.h
+++ b/drivers/usb/gadget/function/uvc_queue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UVC_QUEUE_H_
 #define _UVC_QUEUE_H_
 
diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c
index 3e22b45687d3..f3069db6f08e 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.c
+++ b/drivers/usb/gadget/function/uvc_v4l2.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	uvc_v4l2.c  --  USB Video Class Gadget driver
  *
  *	Copyright (C) 2009-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #include <linux/kernel.h>
@@ -354,7 +350,7 @@ static unsigned long uvcg_v4l2_get_unmapped_area(struct file *file,
 }
 #endif
 
-struct v4l2_file_operations uvc_v4l2_fops = {
+const struct v4l2_file_operations uvc_v4l2_fops = {
 	.owner		= THIS_MODULE,
 	.open		= uvc_v4l2_open,
 	.release	= uvc_v4l2_release,
diff --git a/drivers/usb/gadget/function/uvc_v4l2.h b/drivers/usb/gadget/function/uvc_v4l2.h
index 2683b92fda65..a75e9c397446 100644
--- a/drivers/usb/gadget/function/uvc_v4l2.h
+++ b/drivers/usb/gadget/function/uvc_v4l2.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	uvc_v4l2.h  --  USB Video Class Gadget driver
  *
@@ -7,16 +8,12 @@
  * Copyright (c) 2013 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com
  *		Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __UVC_V4L2_H__
 #define __UVC_V4L2_H__
 
 extern const struct v4l2_ioctl_ops uvc_v4l2_ioctl_ops;
-extern struct v4l2_file_operations uvc_v4l2_fops;
+extern const struct v4l2_file_operations uvc_v4l2_fops;
 
 #endif /* __UVC_V4L2_H__ */
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c
index 0f01c04d7cbd..d3567b90343a 100644
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	uvc_video.c  --  USB Video Class Gadget driver
  *
  *	Copyright (C) 2009-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/function/uvc_video.h b/drivers/usb/gadget/function/uvc_video.h
index ef00f06fa00b..6c20aa75f966 100644
--- a/drivers/usb/gadget/function/uvc_video.h
+++ b/drivers/usb/gadget/function/uvc_video.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	uvc_video.h  --  USB Video Class Gadget driver
  *
@@ -7,10 +8,6 @@
  * Copyright (c) 2013 Samsung Electronics Co., Ltd.
  *		http://www.samsung.com
  *		Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #ifndef __UVC_VIDEO_H__
 #define __UVC_VIDEO_H__
diff --git a/drivers/usb/gadget/functions.c b/drivers/usb/gadget/functions.c
index b13f839e7368..203361a64212 100644
--- a/drivers/usb/gadget/functions.c
+++ b/drivers/usb/gadget/functions.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/legacy/Makefile b/drivers/usb/gadget/legacy/Makefile
index 7f485f25705e..abd0c3e66a05 100644
--- a/drivers/usb/gadget/legacy/Makefile
+++ b/drivers/usb/gadget/legacy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # USB gadget drivers
 #
diff --git a/drivers/usb/gadget/legacy/acm_ms.c b/drivers/usb/gadget/legacy/acm_ms.c
index c39de65a448b..af16672d5118 100644
--- a/drivers/usb/gadget/legacy/acm_ms.c
+++ b/drivers/usb/gadget/legacy/acm_ms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * acm_ms.c -- Composite driver, with ACM and mass storage support
  *
@@ -7,11 +8,6 @@
  * Modified: Klaus Schwarzkopf <schwarzkopf@sensortherm.de>
  *
  * Heavily based on multi.c and cdc2.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/legacy/audio.c b/drivers/usb/gadget/legacy/audio.c
index 1f5cdbe162df..7b11dce98b94 100644
--- a/drivers/usb/gadget/legacy/audio.c
+++ b/drivers/usb/gadget/legacy/audio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * audio.c -- Audio gadget driver
  *
@@ -5,8 +6,6 @@
  * Copyright (C) 2008 Analog Devices, Inc
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 /* #define VERBOSE_DEBUG */
diff --git a/drivers/usb/gadget/legacy/cdc2.c b/drivers/usb/gadget/legacy/cdc2.c
index 51c08682de84..da1c37933ca1 100644
--- a/drivers/usb/gadget/legacy/cdc2.c
+++ b/drivers/usb/gadget/legacy/cdc2.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * cdc2.c -- CDC Composite driver, with ECM and ACM support
  *
  * Copyright (C) 2008 David Brownell
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/legacy/dbgp.c b/drivers/usb/gadget/legacy/dbgp.c
index 99ca3dabc4f3..e1d566c9918a 100644
--- a/drivers/usb/gadget/legacy/dbgp.c
+++ b/drivers/usb/gadget/legacy/dbgp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dbgp.c -- EHCI Debug Port device gadget
  *
diff --git a/drivers/usb/gadget/legacy/ether.c b/drivers/usb/gadget/legacy/ether.c
index 25a2c2e48592..30313b233680 100644
--- a/drivers/usb/gadget/legacy/ether.c
+++ b/drivers/usb/gadget/legacy/ether.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ether.c -- Ethernet gadget driver, with CDC and non-CDC options
  *
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
diff --git a/drivers/usb/gadget/legacy/g_ffs.c b/drivers/usb/gadget/legacy/g_ffs.c
index 6da7316f8e87..b640ed3fcf70 100644
--- a/drivers/usb/gadget/legacy/g_ffs.c
+++ b/drivers/usb/gadget/legacy/g_ffs.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * g_ffs.c -- user mode file system API for USB composite function controllers
  *
  * Copyright (C) 2010 Samsung Electronics
  * Author: Michal Nazarewicz <mina86@mina86.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #define pr_fmt(fmt) "g_ffs: " fmt
diff --git a/drivers/usb/gadget/legacy/gmidi.c b/drivers/usb/gadget/legacy/gmidi.c
index 0bf39c3ccdb1..9eea2d18f2bf 100644
--- a/drivers/usb/gadget/legacy/gmidi.c
+++ b/drivers/usb/gadget/legacy/gmidi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * gmidi.c -- USB MIDI Gadget Driver
  *
@@ -5,9 +6,6 @@
  * Developed for Thumtronics by Grey Innovation
  * Ben Williamson <ben.williamson@greyinnovation.com>
  *
- * This software is distributed under the terms of the GNU General Public
- * License ("GPL") version 2, as published by the Free Software Foundation.
- *
  * This code is based in part on:
  *
  * Gadget Zero driver, Copyright (C) 2003-2004 David Brownell.
diff --git a/drivers/usb/gadget/legacy/hid.c b/drivers/usb/gadget/legacy/hid.c
index a71a884f79fc..c4eda7fe7ab4 100644
--- a/drivers/usb/gadget/legacy/hid.c
+++ b/drivers/usb/gadget/legacy/hid.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * hid.c -- HID Composite driver
  *
  * Based on multi.c
  *
  * Copyright (C) 2010 Fabien Chouteau <fabien.chouteau@barco.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 
diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 684900fcfe24..9343ec436485 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * inode.c -- user mode filesystem api for usb gadget controllers
  *
  * Copyright (C) 2003-2004 David Brownell
  * Copyright (C) 2003 Agilent Technologies
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 
@@ -28,7 +24,7 @@
 #include <linux/aio.h>
 #include <linux/uio.h>
 #include <linux/refcount.h>
-
+#include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/moduleparam.h>
 
@@ -116,6 +112,7 @@ enum ep0_state {
 struct dev_data {
 	spinlock_t			lock;
 	refcount_t			count;
+	int				udc_usage;
 	enum ep0_state			state;		/* P: lock */
 	struct usb_gadgetfs_event	event [N_EVENT];
 	unsigned			ev_next;
@@ -513,9 +510,9 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req)
 		INIT_WORK(&priv->work, ep_user_copy_worker);
 		schedule_work(&priv->work);
 	}
-	spin_unlock(&epdata->dev->lock);
 
 	usb_ep_free_request(ep, req);
+	spin_unlock(&epdata->dev->lock);
 	put_ep(epdata);
 }
 
@@ -939,9 +936,11 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 			struct usb_request	*req = dev->req;
 
 			if ((retval = setup_req (ep, req, 0)) == 0) {
+				++dev->udc_usage;
 				spin_unlock_irq (&dev->lock);
 				retval = usb_ep_queue (ep, req, GFP_KERNEL);
 				spin_lock_irq (&dev->lock);
+				--dev->udc_usage;
 			}
 			dev->state = STATE_DEV_CONNECTED;
 
@@ -983,11 +982,14 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr)
 				retval = -EIO;
 			else {
 				len = min (len, (size_t)dev->req->actual);
-// FIXME don't call this with the spinlock held ...
+				++dev->udc_usage;
+				spin_unlock_irq(&dev->lock);
 				if (copy_to_user (buf, dev->req->buf, len))
 					retval = -EFAULT;
 				else
 					retval = len;
+				spin_lock_irq(&dev->lock);
+				--dev->udc_usage;
 				clean_req (dev->gadget->ep0, dev->req);
 				/* NOTE userspace can't yet choose to stall */
 			}
@@ -1131,6 +1133,7 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 			retval = setup_req (dev->gadget->ep0, dev->req, len);
 			if (retval == 0) {
 				dev->state = STATE_DEV_CONNECTED;
+				++dev->udc_usage;
 				spin_unlock_irq (&dev->lock);
 				if (copy_from_user (dev->req->buf, buf, len))
 					retval = -EFAULT;
@@ -1142,6 +1145,7 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr)
 						GFP_KERNEL);
 				}
 				spin_lock_irq(&dev->lock);
+				--dev->udc_usage;
 				if (retval < 0) {
 					clean_req (dev->gadget->ep0, dev->req);
 				} else
@@ -1243,9 +1247,21 @@ static long dev_ioctl (struct file *fd, unsigned code, unsigned long value)
 	struct usb_gadget	*gadget = dev->gadget;
 	long ret = -ENOTTY;
 
-	if (gadget->ops->ioctl)
+	spin_lock_irq(&dev->lock);
+	if (dev->state == STATE_DEV_OPENED ||
+			dev->state == STATE_DEV_UNBOUND) {
+		/* Not bound to a UDC */
+	} else if (gadget->ops->ioctl) {
+		++dev->udc_usage;
+		spin_unlock_irq(&dev->lock);
+
 		ret = gadget->ops->ioctl (gadget, code, value);
 
+		spin_lock_irq(&dev->lock);
+		--dev->udc_usage;
+	}
+	spin_unlock_irq(&dev->lock);
+
 	return ret;
 }
 
@@ -1463,10 +1479,12 @@ delegate:
 				if (value < 0)
 					break;
 
+				++dev->udc_usage;
 				spin_unlock (&dev->lock);
 				value = usb_ep_queue (gadget->ep0, dev->req,
 							GFP_KERNEL);
 				spin_lock (&dev->lock);
+				--dev->udc_usage;
 				if (value < 0) {
 					clean_req (gadget->ep0, dev->req);
 					break;
@@ -1490,8 +1508,12 @@ delegate:
 		req->length = value;
 		req->zero = value < w_length;
 
+		++dev->udc_usage;
 		spin_unlock (&dev->lock);
 		value = usb_ep_queue (gadget->ep0, req, GFP_KERNEL);
+		spin_lock(&dev->lock);
+		--dev->udc_usage;
+		spin_unlock(&dev->lock);
 		if (value < 0) {
 			DBG (dev, "ep_queue --> %d\n", value);
 			req->status = 0;
@@ -1518,21 +1540,24 @@ static void destroy_ep_files (struct dev_data *dev)
 		/* break link to FS */
 		ep = list_first_entry (&dev->epfiles, struct ep_data, epfiles);
 		list_del_init (&ep->epfiles);
+		spin_unlock_irq (&dev->lock);
+
 		dentry = ep->dentry;
 		ep->dentry = NULL;
 		parent = d_inode(dentry->d_parent);
 
 		/* break link to controller */
+		mutex_lock(&ep->lock);
 		if (ep->state == STATE_EP_ENABLED)
 			(void) usb_ep_disable (ep->ep);
 		ep->state = STATE_EP_UNBOUND;
 		usb_ep_free_request (ep->ep, ep->req);
 		ep->ep = NULL;
+		mutex_unlock(&ep->lock);
+
 		wake_up (&ep->wait);
 		put_ep (ep);
 
-		spin_unlock_irq (&dev->lock);
-
 		/* break link to dcache */
 		inode_lock(parent);
 		d_delete (dentry);
@@ -1603,6 +1628,11 @@ gadgetfs_unbind (struct usb_gadget *gadget)
 
 	spin_lock_irq (&dev->lock);
 	dev->state = STATE_DEV_UNBOUND;
+	while (dev->udc_usage > 0) {
+		spin_unlock_irq(&dev->lock);
+		usleep_range(1000, 2000);
+		spin_lock_irq(&dev->lock);
+	}
 	spin_unlock_irq (&dev->lock);
 
 	destroy_ep_files (dev);
diff --git a/drivers/usb/gadget/legacy/mass_storage.c b/drivers/usb/gadget/legacy/mass_storage.c
index e99ab57ee3e5..ef3d25259b0e 100644
--- a/drivers/usb/gadget/legacy/mass_storage.c
+++ b/drivers/usb/gadget/legacy/mass_storage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * mass_storage.c -- Mass Storage USB Gadget
  *
@@ -5,11 +6,6 @@
  * Copyright (C) 2009 Samsung Electronics
  *                    Author: Michal Nazarewicz <mina86@mina86.com>
  * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 
@@ -107,15 +103,6 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
 
 FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);
 
-static unsigned long msg_registered;
-static void msg_cleanup(void);
-
-static int msg_thread_exits(struct fsg_common *common)
-{
-	msg_cleanup();
-	return 0;
-}
-
 static int msg_do_config(struct usb_configuration *c)
 {
 	struct fsg_opts *opts;
@@ -154,9 +141,6 @@ static struct usb_configuration msg_config_driver = {
 
 static int msg_bind(struct usb_composite_dev *cdev)
 {
-	static const struct fsg_operations ops = {
-		.thread_exits = msg_thread_exits,
-	};
 	struct fsg_opts *opts;
 	struct fsg_config config;
 	int status;
@@ -173,8 +157,6 @@ static int msg_bind(struct usb_composite_dev *cdev)
 	if (status)
 		goto fail;
 
-	fsg_common_set_ops(opts->common, &ops);
-
 	status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
 	if (status)
 		goto fail_set_cdev;
@@ -256,18 +238,12 @@ MODULE_LICENSE("GPL");
 
 static int __init msg_init(void)
 {
-	int ret;
-
-	ret = usb_composite_probe(&msg_driver);
-	set_bit(0, &msg_registered);
-
-	return ret;
+	return usb_composite_probe(&msg_driver);
 }
 module_init(msg_init);
 
-static void msg_cleanup(void)
+static void __exit msg_cleanup(void)
 {
-	if (test_and_clear_bit(0, &msg_registered))
-		usb_composite_unregister(&msg_driver);
+	usb_composite_unregister(&msg_driver);
 }
 module_exit(msg_cleanup);
diff --git a/drivers/usb/gadget/legacy/multi.c b/drivers/usb/gadget/legacy/multi.c
index a70a406580ea..50515f9e1022 100644
--- a/drivers/usb/gadget/legacy/multi.c
+++ b/drivers/usb/gadget/legacy/multi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * multi.c -- Multifunction Composite driver
  *
@@ -5,11 +6,6 @@
  * Copyright (C) 2008 Nokia Corporation
  * Copyright (C) 2009 Samsung Electronics
  * Author: Michal Nazarewicz (mina86@mina86.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 
diff --git a/drivers/usb/gadget/legacy/ncm.c b/drivers/usb/gadget/legacy/ncm.c
index 0aba68253e3d..fcee1ee0bf66 100644
--- a/drivers/usb/gadget/legacy/ncm.c
+++ b/drivers/usb/gadget/legacy/ncm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ncm.c -- NCM gadget driver
  *
@@ -9,11 +10,6 @@
  * Copyright (C) 2003-2005,2008 David Brownell
  * Copyright (C) 2003-2004 Robert Schwebel, Benedikt Spranger
  * Copyright (C) 2008 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define DEBUG */
diff --git a/drivers/usb/gadget/legacy/nokia.c b/drivers/usb/gadget/legacy/nokia.c
index b1e535f4022e..978c1a34a932 100644
--- a/drivers/usb/gadget/legacy/nokia.c
+++ b/drivers/usb/gadget/legacy/nokia.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * nokia.c -- Nokia Composite Gadget Driver
  *
@@ -9,10 +10,6 @@
  * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
  * Copyright (C) 2008 by David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * version 2 of that License.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/legacy/printer.c b/drivers/usb/gadget/legacy/printer.c
index 4c9cfff34a03..57858f0c2b6c 100644
--- a/drivers/usb/gadget/legacy/printer.c
+++ b/drivers/usb/gadget/legacy/printer.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * printer.c -- Printer gadget driver
  *
  * Copyright (C) 2003-2005 David Brownell
  * Copyright (C) 2006 Craig W. Nadler
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/legacy/serial.c b/drivers/usb/gadget/legacy/serial.c
index 9d89adce756d..de30d7628eef 100644
--- a/drivers/usb/gadget/legacy/serial.c
+++ b/drivers/usb/gadget/legacy/serial.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * serial.c -- USB gadget serial driver
  *
  * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
  * Copyright (C) 2008 by David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This software is distributed under the terms of the GNU General
- * Public License ("GPL") as published by the Free Software Foundation,
- * either version 2 of that License or (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
index 0b0bb98319cd..682bf99dcf76 100644
--- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c
@@ -1,10 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Target based USB-Gadget
  *
  * UAS protocol handling, target callbacks, configfs handling,
  * BBB (USB Mass Storage Class Bulk-Only (BBB) and Transport protocol handling.
  *
  * Author: Sebastian Andrzej Siewior <bigeasy at linutronix dot de>
- * License: GPLv2 as published by FSF.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/legacy/webcam.c b/drivers/usb/gadget/legacy/webcam.c
index 82c13fce9232..6b86568c9157 100644
--- a/drivers/usb/gadget/legacy/webcam.c
+++ b/drivers/usb/gadget/legacy/webcam.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	webcam.c -- USB webcam gadget driver
  *
  *	Copyright (C) 2009-2010
  *	    Laurent Pinchart (laurent.pinchart@ideasonboard.com)
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/legacy/zero.c b/drivers/usb/gadget/legacy/zero.c
index d02e2ce73ea5..6e84b44c8a3b 100644
--- a/drivers/usb/gadget/legacy/zero.c
+++ b/drivers/usb/gadget/legacy/zero.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * zero.c -- Gadget Zero, for USB development
  *
  * Copyright (C) 2003-2008 David Brownell
  * Copyright (C) 2008 by Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /*
@@ -154,10 +150,11 @@ static struct usb_gadget_strings *dev_strings[] = {
 /*-------------------------------------------------------------------------*/
 
 static struct timer_list	autoresume_timer;
+static struct usb_composite_dev *autoresume_cdev;
 
-static void zero_autoresume(unsigned long _c)
+static void zero_autoresume(struct timer_list *unused)
 {
-	struct usb_composite_dev	*cdev = (void *)_c;
+	struct usb_composite_dev	*cdev = autoresume_cdev;
 	struct usb_gadget		*g = cdev->gadget;
 
 	/* unconfigured devices can't issue wakeups */
@@ -282,7 +279,8 @@ static int zero_bind(struct usb_composite_dev *cdev)
 	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 	device_desc.iSerialNumber = strings_dev[USB_GADGET_SERIAL_IDX].id;
 
-	setup_timer(&autoresume_timer, zero_autoresume, (unsigned long) cdev);
+	autoresume_cdev = cdev;
+	timer_setup(&autoresume_timer, zero_autoresume, 0);
 
 	func_inst_ss = usb_get_function_instance("SourceSink");
 	if (IS_ERR(func_inst_ss))
diff --git a/drivers/usb/gadget/u_f.c b/drivers/usb/gadget/u_f.c
index 18839732c840..dbaa46eee853 100644
--- a/drivers/usb/gadget/u_f.c
+++ b/drivers/usb/gadget/u_f.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_f.c -- USB function utilities for Gadget stack
  *
@@ -5,10 +6,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include "u_f.h"
diff --git a/drivers/usb/gadget/u_f.h b/drivers/usb/gadget/u_f.h
index 7d53a4773d1a..c3fbef2bb5db 100644
--- a/drivers/usb/gadget/u_f.h
+++ b/drivers/usb/gadget/u_f.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_f.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __U_F_H__
diff --git a/drivers/usb/gadget/u_os_desc.h b/drivers/usb/gadget/u_os_desc.h
index 947b7ddff691..8acd21779ac8 100644
--- a/drivers/usb/gadget/u_os_desc.h
+++ b/drivers/usb/gadget/u_os_desc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * u_os_desc.h
  *
@@ -7,10 +8,6 @@
  *		http://www.samsung.com
  *
  * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __U_OS_DESC_H__
diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index 7cd5c969fcbe..1e9567091d86 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -273,6 +273,7 @@ config USB_SNP_CORE
 config USB_SNP_UDC_PLAT
 	tristate "Synopsys USB 2.0 Device controller"
 	depends on USB_GADGET && OF && HAS_DMA
+	depends on EXTCON || EXTCON=n
 	select USB_GADGET_DUALSPEED
 	select USB_SNP_CORE
 	default ARCH_BCM_IPROC
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index ea9e1c7f1923..ce865b129fd6 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # define_trace.h needs to know how to find our header
 CFLAGS_trace.o			:= -I$(src)
 
diff --git a/drivers/usb/gadget/udc/amd5536udc.h b/drivers/usb/gadget/udc/amd5536udc.h
index 4fe22d432af2..dfdef6a28904 100644
--- a/drivers/usb/gadget/udc/amd5536udc.h
+++ b/drivers/usb/gadget/udc/amd5536udc.h
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * amd5536.h -- header for AMD 5536 UDC high/full speed USB device controller
  *
  * Copyright (C) 2007 AMD (http://www.amd.com)
  * Author: Thomas Dahlmann
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef AMD5536UDC_H
diff --git a/drivers/usb/gadget/udc/amd5536udc_pci.c b/drivers/usb/gadget/udc/amd5536udc_pci.c
index 57a13f080a79..57b6f66331cf 100644
--- a/drivers/usb/gadget/udc/amd5536udc_pci.c
+++ b/drivers/usb/gadget/udc/amd5536udc_pci.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * amd5536udc_pci.c -- AMD 5536 UDC high/full speed USB device controller
  *
  * Copyright (C) 2005-2007 AMD (http://www.amd.com)
  * Author: Thomas Dahlmann
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /*
diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index 8bc78418d40e..bfe278294e88 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * at91_udc -- driver for at91-series USB peripheral controller
  *
  * Copyright (C) 2004 by Thomas Rathbone
  * Copyright (C) 2005 by HP Labs
  * Copyright (C) 2005 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #undef	VERBOSE_DEBUG
diff --git a/drivers/usb/gadget/udc/at91_udc.h b/drivers/usb/gadget/udc/at91_udc.h
index 9bbe72764f31..fd58c5b81826 100644
--- a/drivers/usb/gadget/udc/at91_udc.h
+++ b/drivers/usb/gadget/udc/at91_udc.h
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2004 by Thomas Rathbone, HP Labs
  * Copyright (C) 2005 by Ivan Kokshaysky
  * Copyright (C) 2006 by SAN People
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef AT91_UDC_H
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 98d71400f8a1..075eaaa8a408 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the Atmel USBA high speed USB device controller
  *
  * Copyright (C) 2005-2007 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
 #include <linux/clk/at91_pmc.h>
@@ -29,6 +26,8 @@
 #include <linux/of_gpio.h>
 
 #include "atmel_usba_udc.h"
+#define USBA_VBUS_IRQFLAGS (IRQF_ONESHOT \
+			   | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING)
 
 #ifdef CONFIG_USB_GADGET_DEBUG_FS
 #include <linux/debugfs.h>
@@ -2361,7 +2360,7 @@ static int usba_udc_probe(struct platform_device *pdev)
 					IRQ_NOAUTOEN);
 			ret = devm_request_threaded_irq(&pdev->dev,
 					gpio_to_irq(udc->vbus_pin), NULL,
-					usba_vbus_irq_thread, IRQF_ONESHOT,
+					usba_vbus_irq_thread, USBA_VBUS_IRQFLAGS,
 					"atmel_usba_udc", udc);
 			if (ret) {
 				udc->vbus_pin = -ENODEV;
diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.h b/drivers/usb/gadget/udc/atmel_usba_udc.h
index f8ebe0389bd4..860a00a6fdd0 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.h
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the Atmel USBA high speed USB device controller
  *
  * Copyright (C) 2005-2007 Atmel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #ifndef __LINUX_USB_GADGET_USBA_UDC_H__
 #define __LINUX_USB_GADGET_USBA_UDC_H__
diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index f78503203f42..29f254793592 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bcm63xx_udc.c -- BCM63xx UDC high/full speed USB device controller
  *
  * Copyright (C) 2012 Kevin Cernekee <cernekee@gmail.com>
  * Copyright (C) 2012 Broadcom Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/bitops.h>
diff --git a/drivers/usb/gadget/udc/bdc/Makefile b/drivers/usb/gadget/udc/bdc/Makefile
index 5cf6a3bcdf0f..52cb5ea48bbe 100644
--- a/drivers/usb/gadget/udc/bdc/Makefile
+++ b/drivers/usb/gadget/udc/bdc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_USB_BDC_UDC)	+= bdc.o
 bdc-y	:= bdc_core.o bdc_cmd.o bdc_ep.o bdc_udc.o
 
diff --git a/drivers/usb/gadget/udc/bdc/bdc.h b/drivers/usb/gadget/udc/bdc/bdc.h
index 6df0352cdc50..6e1e881dc51e 100644
--- a/drivers/usb/gadget/udc/bdc/bdc.h
+++ b/drivers/usb/gadget/udc/bdc/bdc.h
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc.h - header for the BRCM BDC USB3.0 device controller
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 
 #ifndef	__LINUX_BDC_H__
diff --git a/drivers/usb/gadget/udc/bdc/bdc_cmd.c b/drivers/usb/gadget/udc/bdc/bdc_cmd.c
index 6e920f1dce02..6305bf2c8b59 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_cmd.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_cmd.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_cmd.c - BRCM BDC USB3.0 device controller
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
diff --git a/drivers/usb/gadget/udc/bdc/bdc_cmd.h b/drivers/usb/gadget/udc/bdc/bdc_cmd.h
index 61d0e3bf9853..29cc988a671a 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_cmd.h
+++ b/drivers/usb/gadget/udc/bdc/bdc_cmd.h
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_cmd.h - header for the BDC debug functions
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #ifndef __LINUX_BDC_CMD_H__
 #define __LINUX_BDC_CMD_H__
diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c
index 7a8af4b916cf..d39f070acbd7 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_core.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_core.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_core.c - BRCM BDC USB3.0 device controller core operations
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/udc/bdc/bdc_dbg.c b/drivers/usb/gadget/udc/bdc/bdc_dbg.c
index ac98f6f681b7..7ba7448ad743 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_dbg.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_dbg.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_dbg.c - BRCM BDC USB3.0 device controller debug functions
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 
 #include "bdc.h"
diff --git a/drivers/usb/gadget/udc/bdc/bdc_dbg.h b/drivers/usb/gadget/udc/bdc/bdc_dbg.h
index 338a6c701315..373d5abffbb8 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_dbg.h
+++ b/drivers/usb/gadget/udc/bdc/bdc_dbg.h
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_dbg.h - header for the BDC debug functions
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #ifndef __LINUX_BDC_DBG_H__
 #define __LINUX_BDC_DBG_H__
diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c
index bfd8f7ade935..f40d4c13cfa4 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_ep.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_ep.c - BRCM BDC USB3.0 device controller endpoint related functions
  *
@@ -6,12 +7,6 @@
  * Author: Ashwini Pahuja
  *
  * Based on drivers under drivers/usb/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #include <linux/module.h>
 #include <linux/pci.h>
diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.h b/drivers/usb/gadget/udc/bdc/bdc_ep.h
index 8a6b36cbf2ea..a37ff8033b4f 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_ep.h
+++ b/drivers/usb/gadget/udc/bdc/bdc_ep.h
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_ep.h - header for the BDC debug functions
  *
  * Copyright (C) 2014 Broadcom Corporation
  *
  * Author: Ashwini Pahuja
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #ifndef __LINUX_BDC_EP_H__
 #define __LINUX_BDC_EP_H__
diff --git a/drivers/usb/gadget/udc/bdc/bdc_pci.c b/drivers/usb/gadget/udc/bdc/bdc_pci.c
index 02968842b359..1e940f054cb8 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_pci.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_pci.c - BRCM BDC USB3.0 device controller PCI interface file.
  *
@@ -6,12 +7,6 @@
  * Author: Ashwini Pahuja
  *
  * Based on drivers under drivers/usb/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/udc/bdc/bdc_udc.c b/drivers/usb/gadget/udc/bdc/bdc_udc.c
index c84346146456..7bfd58c846f7 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_udc.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * bdc_udc.c - BRCM BDC USB3.0 device controller gagdet ops
  *
@@ -6,12 +7,6 @@
  * Author: Ashwini Pahuja
  *
  * Based on drivers under drivers/usb/gadget/udc/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  */
 #include <linux/module.h>
 #include <linux/pci.h>
diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index 75c51ca4ee0f..61422d624ad0 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * udc.c - Core UDC Framework
  *
  * Copyright (C) 2010 Texas Instruments
  * Author: Felipe Balbi <balbi@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/kernel.h>
@@ -912,7 +901,7 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
 		return 0;
 
 	type = usb_endpoint_type(desc);
-	max = 0x7ff & usb_endpoint_maxp(desc);
+	max = usb_endpoint_maxp(desc);
 
 	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
 		return 0;
@@ -1320,8 +1309,7 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
 	udc->dev.driver = &driver->driver;
 	udc->gadget->dev.driver = &driver->driver;
 
-	if (driver->max_speed < udc->gadget->max_speed)
-		usb_gadget_udc_set_speed(udc, driver->max_speed);
+	usb_gadget_udc_set_speed(udc, driver->max_speed);
 
 	ret = driver->bind(udc->gadget, driver);
 	if (ret)
diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index a030d7923d7d..4f1b1809472c 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * dummy_hcd.c -- Dummy/Loopback USB host and device emulator driver.
  *
@@ -5,11 +6,6 @@
  *
  * Copyright (C) 2003 David Brownell
  * Copyright (C) 2003-2005 Alan Stern
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 
@@ -23,6 +19,8 @@
  *
  * Having this all in one kernel can help some stages of development,
  * bypassing some hardware (and driver) issues.  UML could help too.
+ *
+ * Note: The emulation does not include isochronous transfers!
  */
 
 #include <linux/module.h>
@@ -137,6 +135,9 @@ static const struct {
 		.caps = _caps, \
 	}
 
+/* we don't provide isochronous endpoints since we don't support them */
+#define TYPE_BULK_OR_INT	(USB_EP_CAPS_TYPE_BULK | USB_EP_CAPS_TYPE_INT)
+
 	/* everyone has ep0 */
 	EP_INFO(ep0name,
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
@@ -145,64 +146,72 @@ static const struct {
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep2out-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+/*
 	EP_INFO("ep3in-iso",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep4out-iso",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+*/
 	EP_INFO("ep5in-int",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep6in-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep7out-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+/*
 	EP_INFO("ep8in-iso",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep9out-iso",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+*/
 	EP_INFO("ep10in-int",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep11in-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep12out-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+/*
 	EP_INFO("ep13in-iso",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep14out-iso",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+*/
 	EP_INFO("ep15in-int",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+
 	/* or like sa1100: two fixed function endpoints */
 	EP_INFO("ep1out-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep2in-bulk",
 		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+
 	/* and now some generic EPs so we have enough in multi config */
 	EP_INFO("ep3out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep4in",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep5out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep6out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep7in",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep8out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep9in",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep10out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep11out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep12in",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep13out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 	EP_INFO("ep14in",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_IN)),
 	EP_INFO("ep15out",
-		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+		USB_EP_CAPS(TYPE_BULK_OR_INT, USB_EP_CAPS_DIR_OUT)),
 
 #undef EP_INFO
 };
@@ -237,6 +246,8 @@ struct dummy_hcd {
 
 	struct usb_device		*udev;
 	struct list_head		urbp_list;
+	struct urbp			*next_frame_urbp;
+
 	u32				stream_en_ep;
 	u8				num_stream[30 / 2];
 
@@ -253,11 +264,13 @@ struct dummy {
 	 */
 	struct dummy_ep			ep[DUMMY_ENDPOINTS];
 	int				address;
+	int				callback_usage;
 	struct usb_gadget		gadget;
 	struct usb_gadget_driver	*driver;
 	struct dummy_request		fifo_req;
 	u8				fifo_buf[FIFO_SIZE];
 	u16				devstatus;
+	unsigned			ints_enabled:1;
 	unsigned			udc_suspended:1;
 	unsigned			pullup:1;
 
@@ -375,11 +388,10 @@ static void set_link_state_by_speed(struct dummy_hcd *dum_hcd)
 			     USB_PORT_STAT_CONNECTION) == 0)
 				dum_hcd->port_status |=
 					(USB_PORT_STAT_C_CONNECTION << 16);
-			if ((dum_hcd->port_status &
-			     USB_PORT_STAT_ENABLE) == 1 &&
-				(dum_hcd->port_status &
-				 USB_SS_PORT_LS_U0) == 1 &&
-				dum_hcd->rh_state != DUMMY_RH_SUSPENDED)
+			if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) &&
+			    (dum_hcd->port_status &
+			     USB_PORT_STAT_LINK_STATE) == USB_SS_PORT_LS_U0 &&
+			    dum_hcd->rh_state != DUMMY_RH_SUSPENDED)
 				dum_hcd->active = 1;
 		}
 	} else {
@@ -416,6 +428,7 @@ static void set_link_state_by_speed(struct dummy_hcd *dum_hcd)
 static void set_link_state(struct dummy_hcd *dum_hcd)
 {
 	struct dummy *dum = dum_hcd->dum;
+	unsigned int power_bit;
 
 	dum_hcd->active = 0;
 	if (dum->pullup)
@@ -426,32 +439,43 @@ static void set_link_state(struct dummy_hcd *dum_hcd)
 			return;
 
 	set_link_state_by_speed(dum_hcd);
+	power_bit = (dummy_hcd_to_hcd(dum_hcd)->speed == HCD_USB3 ?
+			USB_SS_PORT_STAT_POWER : USB_PORT_STAT_POWER);
 
 	if ((dum_hcd->port_status & USB_PORT_STAT_ENABLE) == 0 ||
 	     dum_hcd->active)
 		dum_hcd->resuming = 0;
 
 	/* Currently !connected or in reset */
-	if ((dum_hcd->port_status & USB_PORT_STAT_CONNECTION) == 0 ||
+	if ((dum_hcd->port_status & power_bit) == 0 ||
 			(dum_hcd->port_status & USB_PORT_STAT_RESET) != 0) {
-		unsigned disconnect = USB_PORT_STAT_CONNECTION &
+		unsigned int disconnect = power_bit &
 				dum_hcd->old_status & (~dum_hcd->port_status);
-		unsigned reset = USB_PORT_STAT_RESET &
+		unsigned int reset = USB_PORT_STAT_RESET &
 				(~dum_hcd->old_status) & dum_hcd->port_status;
 
 		/* Report reset and disconnect events to the driver */
-		if (dum->driver && (disconnect || reset)) {
+		if (dum->ints_enabled && (disconnect || reset)) {
 			stop_activity(dum);
+			++dum->callback_usage;
+			spin_unlock(&dum->lock);
 			if (reset)
 				usb_gadget_udc_reset(&dum->gadget, dum->driver);
 			else
 				dum->driver->disconnect(&dum->gadget);
+			spin_lock(&dum->lock);
+			--dum->callback_usage;
 		}
-	} else if (dum_hcd->active != dum_hcd->old_active) {
+	} else if (dum_hcd->active != dum_hcd->old_active &&
+			dum->ints_enabled) {
+		++dum->callback_usage;
+		spin_unlock(&dum->lock);
 		if (dum_hcd->old_active && dum->driver->suspend)
 			dum->driver->suspend(&dum->gadget);
 		else if (!dum_hcd->old_active &&  dum->driver->resume)
 			dum->driver->resume(&dum->gadget);
+		spin_lock(&dum->lock);
+		--dum->callback_usage;
 	}
 
 	dum_hcd->old_status = dum_hcd->port_status;
@@ -541,10 +565,12 @@ static int dummy_enable(struct usb_ep *_ep,
 			if (max <= 1024)
 				break;
 			/* save a return statement */
+			/* fall through */
 		case USB_SPEED_FULL:
 			if (max <= 64)
 				break;
 			/* save a return statement */
+			/* fall through */
 		default:
 			if (max <= 8)
 				break;
@@ -562,6 +588,7 @@ static int dummy_enable(struct usb_ep *_ep,
 			if (max <= 1024)
 				break;
 			/* save a return statement */
+			/* fall through */
 		case USB_SPEED_FULL:
 			if (max <= 1023)
 				break;
@@ -972,8 +999,11 @@ static int dummy_udc_start(struct usb_gadget *g,
 	 * can't enumerate without help from the driver we're binding.
 	 */
 
+	spin_lock_irq(&dum->lock);
 	dum->devstatus = 0;
 	dum->driver = driver;
+	dum->ints_enabled = 1;
+	spin_unlock_irq(&dum->lock);
 
 	return 0;
 }
@@ -984,6 +1014,16 @@ static int dummy_udc_stop(struct usb_gadget *g)
 	struct dummy		*dum = dum_hcd->dum;
 
 	spin_lock_irq(&dum->lock);
+	dum->ints_enabled = 0;
+	stop_activity(dum);
+
+	/* emulate synchronize_irq(): wait for callbacks to finish */
+	while (dum->callback_usage > 0) {
+		spin_unlock_irq(&dum->lock);
+		usleep_range(1000, 2000);
+		spin_lock_irq(&dum->lock);
+	}
+
 	dum->driver = NULL;
 	spin_unlock_irq(&dum->lock);
 
@@ -1037,7 +1077,12 @@ static int dummy_udc_probe(struct platform_device *pdev)
 	memzero_explicit(&dum->gadget, sizeof(struct usb_gadget));
 	dum->gadget.name = gadget_name;
 	dum->gadget.ops = &dummy_ops;
-	dum->gadget.max_speed = USB_SPEED_SUPER;
+	if (mod_data.is_super_speed)
+		dum->gadget.max_speed = USB_SPEED_SUPER;
+	else if (mod_data.is_high_speed)
+		dum->gadget.max_speed = USB_SPEED_HIGH;
+	else
+		dum->gadget.max_speed = USB_SPEED_FULL;
 
 	dum->gadget.dev.parent = &pdev->dev;
 	init_dummy_udc_hw(dum);
@@ -1246,6 +1291,8 @@ static int dummy_urb_enqueue(
 
 	list_add_tail(&urbp->urbp_list, &dum_hcd->urbp_list);
 	urb->hcpriv = urbp;
+	if (!dum_hcd->next_frame_urbp)
+		dum_hcd->next_frame_urbp = urbp;
 	if (usb_pipetype(urb->pipe) == PIPE_CONTROL)
 		urb->error_count = 1;		/* mark as a new urb */
 
@@ -1521,6 +1568,8 @@ static struct dummy_ep *find_endpoint(struct dummy *dum, u8 address)
 	if (!is_active((dum->gadget.speed == USB_SPEED_SUPER ?
 			dum->ss_hcd : dum->hs_hcd)))
 		return NULL;
+	if (!dum->ints_enabled)
+		return NULL;
 	if ((address & ~USB_DIR_IN) == 0)
 		return &dum->ep[0];
 	for (i = 1; i < DUMMY_ENDPOINTS; i++) {
@@ -1732,6 +1781,7 @@ static void dummy_timer(unsigned long _dum_hcd)
 	int			i;
 
 	/* simplistic model for one frame's bandwidth */
+	/* FIXME: account for transaction and packet overhead */
 	switch (dum->gadget.speed) {
 	case USB_SPEED_LOW:
 		total = 8/*bytes*/ * 12/*packets*/;
@@ -1762,6 +1812,7 @@ static void dummy_timer(unsigned long _dum_hcd)
 		spin_unlock_irqrestore(&dum->lock, flags);
 		return;
 	}
+	dum_hcd->next_frame_urbp = NULL;
 
 	for (i = 0; i < DUMMY_ENDPOINTS; i++) {
 		if (!ep_info[i].name)
@@ -1775,22 +1826,21 @@ restart:
 		struct dummy_request	*req;
 		u8			address;
 		struct dummy_ep		*ep = NULL;
-		int			type;
 		int			status = -EINPROGRESS;
 
+		/* stop when we reach URBs queued after the timer interrupt */
+		if (urbp == dum_hcd->next_frame_urbp)
+			break;
+
 		urb = urbp->urb;
 		if (urb->unlinked)
 			goto return_urb;
 		else if (dum_hcd->rh_state != DUMMY_RH_RUNNING)
 			continue;
-		type = usb_pipetype(urb->pipe);
 
-		/* used up this frame's non-periodic bandwidth?
-		 * FIXME there's infinite bandwidth for control and
-		 * periodic transfers ... unrealistic.
-		 */
-		if (total <= 0 && type == PIPE_BULK)
-			continue;
+		/* Used up this frame's bandwidth? */
+		if (total <= 0)
+			break;
 
 		/* find the gadget's ep for this request (if configured) */
 		address = usb_pipeendpoint (urb->pipe);
@@ -1857,10 +1907,12 @@ restart:
 			 * until setup() returns; no reentrancy issues etc.
 			 */
 			if (value > 0) {
+				++dum->callback_usage;
 				spin_unlock(&dum->lock);
 				value = dum->driver->setup(&dum->gadget,
 						&setup);
 				spin_lock(&dum->lock);
+				--dum->callback_usage;
 
 				if (value >= 0) {
 					/* no delays (max 64KB data stage) */
@@ -1886,13 +1938,17 @@ restart:
 		limit = total;
 		switch (usb_pipetype(urb->pipe)) {
 		case PIPE_ISOCHRONOUS:
-			/* FIXME is it urb->interval since the last xfer?
-			 * use urb->iso_frame_desc[i].
-			 * complete whether or not ep has requests queued.
-			 * report random errors, to debug drivers.
+			/*
+			 * We don't support isochronous.  But if we did,
+			 * here are some of the issues we'd have to face:
+			 *
+			 * Is it urb->interval since the last xfer?
+			 * Use urb->iso_frame_desc[i].
+			 * Complete whether or not ep has requests queued.
+			 * Report random errors, to debug drivers.
 			 */
 			limit = max(limit, periodic_bytes(dum, ep));
-			status = -ENOSYS;
+			status = -EINVAL;	/* fail all xfers */
 			break;
 
 		case PIPE_INTERRUPT:
@@ -2389,9 +2445,7 @@ static DEVICE_ATTR_RO(urbs);
 
 static int dummy_start_ss(struct dummy_hcd *dum_hcd)
 {
-	init_timer(&dum_hcd->timer);
-	dum_hcd->timer.function = dummy_timer;
-	dum_hcd->timer.data = (unsigned long)dum_hcd;
+	setup_timer(&dum_hcd->timer, dummy_timer, (unsigned long)dum_hcd);
 	dum_hcd->rh_state = DUMMY_RH_RUNNING;
 	dum_hcd->stream_en_ep = 0;
 	INIT_LIST_HEAD(&dum_hcd->urbp_list);
@@ -2420,9 +2474,7 @@ static int dummy_start(struct usb_hcd *hcd)
 		return dummy_start_ss(dum_hcd);
 
 	spin_lock_init(&dum_hcd->dum->lock);
-	init_timer(&dum_hcd->timer);
-	dum_hcd->timer.function = dummy_timer;
-	dum_hcd->timer.data = (unsigned long)dum_hcd;
+	setup_timer(&dum_hcd->timer, dummy_timer, (unsigned long)dum_hcd);
 	dum_hcd->rh_state = DUMMY_RH_RUNNING;
 
 	INIT_LIST_HEAD(&dum_hcd->urbp_list);
@@ -2561,8 +2613,6 @@ static struct hc_driver dummy_hcd = {
 	.product_desc =		"Dummy host controller",
 	.hcd_priv_size =	sizeof(struct dummy_hcd),
 
-	.flags =		HCD_USB3 | HCD_SHARED,
-
 	.reset =		dummy_setup,
 	.start =		dummy_start,
 	.stop =			dummy_stop,
@@ -2591,8 +2641,12 @@ static int dummy_hcd_probe(struct platform_device *pdev)
 	dev_info(&pdev->dev, "%s, driver " DRIVER_VERSION "\n", driver_desc);
 	dum = *((void **)dev_get_platdata(&pdev->dev));
 
-	if (!mod_data.is_super_speed)
+	if (mod_data.is_super_speed)
+		dummy_hcd.flags = HCD_USB3 | HCD_SHARED;
+	else if (mod_data.is_high_speed)
 		dummy_hcd.flags = HCD_USB2;
+	else
+		dummy_hcd.flags = HCD_USB11;
 	hs_hcd = usb_create_hcd(&dummy_hcd, &pdev->dev, dev_name(&pdev->dev));
 	if (!hs_hcd)
 		return -ENOMEM;
diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index 78d0204e3e20..53a48f561458 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * FOTG210 UDC Driver supports Bulk transfer so far
  *
  * Copyright (C) 2013 Faraday Technology Corporation
  *
  * Author : Yuan-Hsin Chen <yhchen@faraday-tech.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/gadget/udc/fotg210.h b/drivers/usb/gadget/udc/fotg210.h
index bbf991bcbe7c..08c32957503b 100644
--- a/drivers/usb/gadget/udc/fotg210.h
+++ b/drivers/usb/gadget/udc/fotg210.h
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Faraday FOTG210 USB OTG controller
  *
  * Copyright (C) 2013 Faraday Technology Corporation
  * Author: Yuan-Hsin Chen <yhchen@faraday-tech.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/udc/fsl_mxc_udc.c b/drivers/usb/gadget/udc/fsl_mxc_udc.c
index f16e149c5b3e..f29cf5c6160c 100644
--- a/drivers/usb/gadget/udc/fsl_mxc_udc.c
+++ b/drivers/usb/gadget/udc/fsl_mxc_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2009
  * Guennadi Liakhovetski, DENX Software Engineering, <lg@denx.de>
@@ -5,11 +6,6 @@
  * Description:
  * Helper routines for i.MX3x SoCs from Freescale, needed by the fsl_usb2_udc.c
  * driver to function correctly on these systems.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 #include <linux/clk.h>
 #include <linux/delay.h>
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index a3e72d690eef..2707be628298 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * driver/usb/gadget/fsl_qe_udc.c
  *
@@ -11,11 +12,6 @@
  * Freescle QE/CPM USB Pheripheral Controller Driver
  * The controller can be found on MPC8360, MPC8272, and etc.
  * MPC8360 Rev 1.1 may need QE mircocode update
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation;  either version 2 of the License, or (at your
- * option) any later version.
  */
 
 #undef USB_TRACE
diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.h b/drivers/usb/gadget/udc/fsl_qe_udc.h
index 7026919fc901..2c537a904ee7 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.h
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * drivers/usb/gadget/qe_udc.h
  *
@@ -8,11 +9,6 @@
  *
  * Description:
  * Freescale USB device/endpoint management registers
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
  */
 
 #ifndef __FSL_QE_UDC_H
diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index 6f2f71c054be..d606d4f13098 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2004-2007,2011-2012 Freescale Semiconductor, Inc.
  * All rights reserved.
@@ -10,11 +11,6 @@
  * This can be found on MPC8349E/MPC8313E/MPC5121E cpus.
  * The driver is previously named as mpc_udc.  Based on bare board
  * code from Dave Liu and Shlomi Gridish.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #undef VERBOSE
diff --git a/drivers/usb/gadget/udc/fsl_usb2_udc.h b/drivers/usb/gadget/udc/fsl_usb2_udc.h
index e92b8408b6f6..4ba651ae9048 100644
--- a/drivers/usb/gadget/udc/fsl_usb2_udc.h
+++ b/drivers/usb/gadget/udc/fsl_usb2_udc.h
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2004,2012 Freescale Semiconductor, Inc
  * All rights reserved.
  *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
  * Freescale USB device/endpoint management registers
  */
 #ifndef __FSL_USB2_UDC_H
diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index e0c1b0099265..263804d154a7 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Fusb300 UDC (USB gadget)
  *
  * Copyright (C) 2010 Faraday Technology Corp.
  *
  * Author : Yuan-hsin Chen <yhchen@faraday-tech.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
diff --git a/drivers/usb/gadget/udc/fusb300_udc.h b/drivers/usb/gadget/udc/fusb300_udc.h
index ad39f892d200..eb3d6d379ba7 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.h
+++ b/drivers/usb/gadget/udc/fusb300_udc.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Fusb300 UDC (USB gadget)
  *
  * Copyright (C) 2010 Faraday Technology Corp.
  *
  * Author : Yuan-hsin Chen <yhchen@faraday-tech.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 8433c22900dc..4504d0b202db 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Toshiba TC86C001 ("Goku-S") USB Device Controller driver
  *
@@ -5,10 +6,6 @@
  *      by Stuart Lynne, Tom Rushworth, and Bruce Balden
  * Copyright (C) 2002 Toshiba Corporation
  * Copyright (C) 2003 MontaVista Software (source@mvista.com)
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 /*
@@ -127,11 +124,15 @@ goku_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc)
 	mode = 0;
 	max = get_unaligned_le16(&desc->wMaxPacketSize);
 	switch (max) {
-	case 64:	mode++;
-	case 32:	mode++;
-	case 16:	mode++;
-	case 8:		mode <<= 3;
-			break;
+	case 64:
+		mode++; /* fall through */
+	case 32:
+		mode++; /* fall through */
+	case 16:
+		mode++; /* fall through */
+	case 8:
+		mode <<= 3;
+		break;
 	default:
 		return -EINVAL;
 	}
diff --git a/drivers/usb/gadget/udc/goku_udc.h b/drivers/usb/gadget/udc/goku_udc.h
index 86d2adafe149..26601bf4e7a9 100644
--- a/drivers/usb/gadget/udc/goku_udc.h
+++ b/drivers/usb/gadget/udc/goku_udc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Toshiba TC86C001 ("Goku-S") USB Device Controller driver
  *
@@ -5,10 +6,6 @@
  *      by Stuart Lynne, Tom Rushworth, and Bruce Balden
  * Copyright (C) 2002 Toshiba Corporation
  * Copyright (C) 2003 MontaVista Software (source@mvista.com)
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 /*
diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index 1f9941145746..b3fb1bbdb854 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Peripheral Controller driver for Aeroflex Gaisler GRUSBDC.
  *
@@ -9,11 +10,6 @@
  * Full documentation of the GRUSBDC core can be found here:
  * http://www.gaisler.com/products/grlib/grip.pdf
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  * Contributors:
  * - Andreas Larsson <andreas@gaisler.com>
  * - Marko Isomaki
@@ -1261,7 +1257,7 @@ static int gr_handle_in_ep(struct gr_ep *ep)
 	if (!req->last_desc)
 		return 0;
 
-	if (ACCESS_ONCE(req->last_desc->ctrl) & GR_DESC_IN_CTRL_EN)
+	if (READ_ONCE(req->last_desc->ctrl) & GR_DESC_IN_CTRL_EN)
 		return 0; /* Not put in hardware buffers yet */
 
 	if (gr_read32(&ep->regs->epstat) & (GR_EPSTAT_B1 | GR_EPSTAT_B0))
@@ -1290,7 +1286,7 @@ static int gr_handle_out_ep(struct gr_ep *ep)
 	if (!req->curr_desc)
 		return 0;
 
-	ctrl = ACCESS_ONCE(req->curr_desc->ctrl);
+	ctrl = READ_ONCE(req->curr_desc->ctrl);
 	if (ctrl & GR_DESC_OUT_CTRL_EN)
 		return 0; /* Not received yet */
 
@@ -1538,7 +1534,7 @@ static int gr_ep_enable(struct usb_ep *_ep,
 	 * Bits 10-0 set the max payload. 12-11 set the number of
 	 * additional transactions.
 	 */
-	max = 0x7ff & usb_endpoint_maxp(desc);
+	max = usb_endpoint_maxp(desc);
 	nt = usb_endpoint_maxp_mult(desc) - 1;
 	buffer_size = GR_BUFFER_SIZE(epctrl);
 	if (nt && (mode == 0 || mode == 2)) {
diff --git a/drivers/usb/gadget/udc/gr_udc.h b/drivers/usb/gadget/udc/gr_udc.h
index 4297c4e8021f..3e913268c8c5 100644
--- a/drivers/usb/gadget/udc/gr_udc.h
+++ b/drivers/usb/gadget/udc/gr_udc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Peripheral Controller driver for Aeroflex Gaisler GRUSBDC.
  *
@@ -9,11 +10,6 @@
  * Full documentation of the GRUSBDC core can be found here:
  * http://www.gaisler.com/products/grlib/grip.pdf
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
  * Contributors:
  * - Andreas Larsson <andreas@gaisler.com>
  * - Marko Isomaki
diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 8f32b5ee7734..b0781771704e 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Gadget driver for LPC32xx
  *
@@ -12,20 +13,6 @@
  *
  * Note: This driver is based on original work done by Mike James for
  *       the LPC3180.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 46ce7bc15f2b..f19e6282a688 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * M66592 UDC (USB gadget)
  *
  * Copyright (C) 2006-2007 Renesas Solutions Corp.
  *
  * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/module.h>
@@ -1592,9 +1589,7 @@ static int m66592_probe(struct platform_device *pdev)
 	m66592->gadget.max_speed = USB_SPEED_HIGH;
 	m66592->gadget.name = udc_name;
 
-	init_timer(&m66592->timer);
-	m66592->timer.function = m66592_timer;
-	m66592->timer.data = (unsigned long)m66592;
+	setup_timer(&m66592->timer, m66592_timer, (unsigned long)m66592);
 	m66592->reg = reg;
 
 	ret = request_irq(ires->start, m66592_irq, IRQF_SHARED,
diff --git a/drivers/usb/gadget/udc/m66592-udc.h b/drivers/usb/gadget/udc/m66592-udc.h
index 96d49d7bfb6b..01a64685b8a3 100644
--- a/drivers/usb/gadget/udc/m66592-udc.h
+++ b/drivers/usb/gadget/udc/m66592-udc.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * M66592 UDC (USB gadget)
  *
  * Copyright (C) 2006-2007 Renesas Solutions Corp.
  *
  * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #ifndef __M66592_UDC_H__
diff --git a/drivers/usb/gadget/udc/mv_u3d.h b/drivers/usb/gadget/udc/mv_u3d.h
index e32a787ac373..982625b7197a 100644
--- a/drivers/usb/gadget/udc/mv_u3d.h
+++ b/drivers/usb/gadget/udc/mv_u3d.h
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
  */
 
 #ifndef __MV_U3D_H
diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c
index 772049afe166..35e02a8d0091 100644
--- a/drivers/usb/gadget/udc/mv_u3d_core.c
+++ b/drivers/usb/gadget/udc/mv_u3d_core.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/udc/mv_udc.h b/drivers/usb/gadget/udc/mv_udc.h
index be77f207dbaf..b3f759c0962c 100644
--- a/drivers/usb/gadget/udc/mv_udc.h
+++ b/drivers/usb/gadget/udc/mv_udc.h
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #ifndef __MV_UDC_H
diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
index 4103bf7cf52a..95f52232493b 100644
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/drivers/usb/gadget/udc/mv_udc_core.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
  * Author: Chao Xie <chao.xie@marvell.com>
  *	   Neil Zhang <zhangwm@marvell.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
index 8f85a51bd2b3..660878a19505 100644
--- a/drivers/usb/gadget/udc/net2272.c
+++ b/drivers/usb/gadget/udc/net2272.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for PLX NET2272 USB device controller
  *
  * Copyright (C) 2005-2006 PLX Technology, Inc.
  * Copyright (C) 2006-2011 Analog Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <linux/delay.h>
diff --git a/drivers/usb/gadget/udc/net2272.h b/drivers/usb/gadget/udc/net2272.h
index 69bc9c3c6ce4..8e644627992d 100644
--- a/drivers/usb/gadget/udc/net2272.h
+++ b/drivers/usb/gadget/udc/net2272.h
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * PLX NET2272 high/full speed USB device controller
  *
  * Copyright (C) 2005-2006 PLX Technology, Inc.
  * Copyright (C) 2006-2011 Analog Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #ifndef __NET2272_H__
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index f608c1f85e61..318246d8b2e2 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for the PLX NET2280 USB device controller.
  * Specs and errata are available from <http://www.plxtech.com>.
@@ -31,11 +32,6 @@
  *
  * Modified Ricardo Ribalda Qtechnology AS  to provide compatibility
  *	with usb 338x chip. Based on PLX driver
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/udc/net2280.h b/drivers/usb/gadget/udc/net2280.h
index 1088c3745999..b65a797544d7 100644
--- a/drivers/usb/gadget/udc/net2280.h
+++ b/drivers/usb/gadget/udc/net2280.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * NetChip 2280 high/full speed USB device controller.
  * Unlike many such controllers, this one talks PCI.
@@ -7,11 +8,6 @@
  * Copyright (C) 2002 NetChip Technology, Inc. (http://www.netchip.com)
  * Copyright (C) 2003 David Brownell
  * Copyright (C) 2014 Ricardo Ribalda - Qtechnology/AS
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/usb/net2280.h>
diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index f05ba6825bfe..fc7f810baef7 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * omap_udc.c -- for OMAP full speed udc; most chips support OTG.
  *
@@ -5,11 +6,6 @@
  * Copyright (C) 2004-2005 David Brownell
  *
  * OMAP2 & DMA support by Kyungmin Park <kyungmin.park@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #undef	DEBUG
diff --git a/drivers/usb/gadget/udc/omap_udc.h b/drivers/usb/gadget/udc/omap_udc.h
index 26974196cf44..00f9e608e755 100644
--- a/drivers/usb/gadget/udc/omap_udc.h
+++ b/drivers/usb/gadget/udc/omap_udc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * omap_udc.h -- for omap 3.2 udc, with OTG support
  *
diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c
index 84dcbcd756f0..afaea11ec771 100644
--- a/drivers/usb/gadget/udc/pch_udc.c
+++ b/drivers/usb/gadget/udc/pch_udc.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2011 LAPIS Semiconductor Co., Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index a238da906115..8f135d9fa245 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Intel PXA25x and IXP4xx on-chip full speed USB device controllers
  *
@@ -6,11 +7,6 @@
  * Copyright (C) 2003 Benedikt Spranger, Pengutronix
  * Copyright (C) 2003 David Brownell
  * Copyright (C) 2003 Joshua Wise
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /* #define VERBOSE_DEBUG */
@@ -2417,9 +2413,7 @@ static int pxa25x_udc_probe(struct platform_device *pdev)
 		gpio_direction_output(dev->mach->gpio_pullup, 0);
 	}
 
-	init_timer(&dev->timer);
-	dev->timer.function = udc_watchdog;
-	dev->timer.data = (unsigned long) dev;
+	setup_timer(&dev->timer, udc_watchdog, (unsigned long)dev);
 
 	the_controller = dev;
 	platform_set_drvdata(pdev, dev);
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.h b/drivers/usb/gadget/udc/pxa25x_udc.h
index a458bec2536d..ccc6b921f067 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.h
+++ b/drivers/usb/gadget/udc/pxa25x_udc.h
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Intel PXA25x on-chip full speed USB device controller
  *
  * Copyright (C) 2003 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
  * Copyright (C) 2003 David Brownell
- *
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef __LINUX_USB_GADGET_PXA25X_H
diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c
index d48e239660c3..be2761f1b3f5 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.c
+++ b/drivers/usb/gadget/udc/pxa27x_udc.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Handles the Intel 27x USB Device Controller (UDC)
  *
  * Inspired by original driver by Frank Becker, David Brownell, and others.
  * Copyright (C) 2008 Robert Jarzmik
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/drivers/usb/gadget/udc/pxa27x_udc.h b/drivers/usb/gadget/udc/pxa27x_udc.h
index cea2cb79b30c..1128d39a4255 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.h
+++ b/drivers/usb/gadget/udc/pxa27x_udc.h
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * linux/drivers/usb/gadget/pxa27x_udc.h
  * Intel PXA27x on-chip full speed USB device controller
  *
  * Inspired by original driver by Frank Becker, David Brownell, and others.
  * Copyright (C) 2008 Robert Jarzmik
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef __LINUX_USB_GADGET_PXA27X_H
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index 118ad70f1af0..143122ed3c66 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R8A66597 UDC (USB gadget)
  *
  * Copyright (C) 2006-2009 Renesas Solutions Corp.
  *
  * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #include <linux/module.h>
@@ -1877,9 +1874,7 @@ static int r8a66597_probe(struct platform_device *pdev)
 	r8a66597->gadget.max_speed = USB_SPEED_HIGH;
 	r8a66597->gadget.name = udc_name;
 
-	init_timer(&r8a66597->timer);
-	r8a66597->timer.function = r8a66597_timer;
-	r8a66597->timer.data = (unsigned long)r8a66597;
+	setup_timer(&r8a66597->timer, r8a66597_timer, (unsigned long)r8a66597);
 	r8a66597->reg = reg;
 
 	if (r8a66597->pdata->on_chip) {
diff --git a/drivers/usb/gadget/udc/r8a66597-udc.h b/drivers/usb/gadget/udc/r8a66597-udc.h
index 45c4b2df1785..9a115caba661 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.h
+++ b/drivers/usb/gadget/udc/r8a66597-udc.h
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R8A66597 UDC
  *
  * Copyright (C) 2007-2009 Renesas Solutions Corp.
  *
  * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
  */
 
 #ifndef __R8A66597_H__
diff --git a/drivers/usb/gadget/udc/renesas_usb3.c b/drivers/usb/gadget/udc/renesas_usb3.c
index df37c1e6e9d5..bc37f40baacf 100644
--- a/drivers/usb/gadget/udc/renesas_usb3.c
+++ b/drivers/usb/gadget/udc/renesas_usb3.c
@@ -1,22 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas USB3.0 Peripheral driver (USB gadget)
  *
- * Copyright (C) 2015  Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
+ * Copyright (C) 2015-2017  Renesas Electronics Corporation
  */
 
 #include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
+#include <linux/phy/phy.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/sizes.h>
@@ -334,6 +332,7 @@ struct renesas_usb3 {
 	struct usb_gadget_driver *driver;
 	struct extcon_dev *extcon;
 	struct work_struct extcon_work;
+	struct phy *phy;
 
 	struct renesas_usb3_ep *usb3_ep;
 	int num_usb3_eps;
@@ -1038,7 +1037,7 @@ static int usb3_write_pipe(struct renesas_usb3_ep *usb3_ep,
 			usb3_ep->ep.maxpacket);
 	u8 *buf = usb3_req->req.buf + usb3_req->req.actual;
 	u32 tmp = 0;
-	bool is_last;
+	bool is_last = !len ? true : false;
 
 	if (usb3_wait_pipe_status(usb3_ep, PX_STA_BUFSTS) < 0)
 		return -EBUSY;
@@ -1059,7 +1058,8 @@ static int usb3_write_pipe(struct renesas_usb3_ep *usb3_ep,
 		usb3_write(usb3, tmp, fifo_reg);
 	}
 
-	is_last = usb3_is_transfer_complete(usb3_ep, usb3_req);
+	if (!is_last)
+		is_last = usb3_is_transfer_complete(usb3_ep, usb3_req);
 	/* Send the data */
 	usb3_set_px_con_send(usb3_ep, len, is_last);
 
@@ -1150,7 +1150,8 @@ static void usb3_start_pipe0(struct renesas_usb3_ep *usb3_ep,
 		usb3_set_p0_con_for_ctrl_read_data(usb3);
 	} else {
 		usb3_clear_bit(usb3, P0_MOD_DIR, USB3_P0_MOD);
-		usb3_set_p0_con_for_ctrl_write_data(usb3);
+		if (usb3_req->req.length)
+			usb3_set_p0_con_for_ctrl_write_data(usb3);
 	}
 
 	usb3_p0_xfer(usb3_ep, usb3_req);
@@ -2053,7 +2054,16 @@ static u32 usb3_calc_ramarea(int ram_size)
 static u32 usb3_calc_rammap_val(struct renesas_usb3_ep *usb3_ep,
 				const struct usb_endpoint_descriptor *desc)
 {
-	return usb3_ep->rammap_val | PN_RAMMAP_MPKT(usb_endpoint_maxp(desc));
+	int i;
+	static const u32 max_packet_array[] = {8, 16, 32, 64, 512};
+	u32 mpkt = PN_RAMMAP_MPKT(1024);
+
+	for (i = 0; i < ARRAY_SIZE(max_packet_array); i++) {
+		if (usb_endpoint_maxp(desc) <= max_packet_array[i])
+			mpkt = PN_RAMMAP_MPKT(max_packet_array[i]);
+	}
+
+	return usb3_ep->rammap_val | mpkt;
 }
 
 static int usb3_enable_pipe_n(struct renesas_usb3_ep *usb3_ep,
@@ -2228,7 +2238,9 @@ static int renesas_usb3_start(struct usb_gadget *gadget,
 	/* hook up the driver */
 	usb3->driver = driver;
 
-	pm_runtime_enable(usb3_to_dev(usb3));
+	if (usb3->phy)
+		phy_init(usb3->phy);
+
 	pm_runtime_get_sync(usb3_to_dev(usb3));
 
 	renesas_usb3_init_controller(usb3);
@@ -2245,8 +2257,10 @@ static int renesas_usb3_stop(struct usb_gadget *gadget)
 	usb3->driver = NULL;
 	renesas_usb3_stop_controller(usb3);
 
+	if (usb3->phy)
+		phy_exit(usb3->phy);
+
 	pm_runtime_put(usb3_to_dev(usb3));
-	pm_runtime_disable(usb3_to_dev(usb3));
 
 	return 0;
 }
@@ -2394,6 +2408,9 @@ static int renesas_usb3_remove(struct platform_device *pdev)
 	renesas_usb3_dma_free_prd(usb3, &pdev->dev);
 
 	__renesas_usb3_ep_free_request(usb3->ep0_req);
+	if (usb3->phy)
+		phy_put(usb3->phy);
+	pm_runtime_disable(usb3_to_dev(usb3));
 
 	return 0;
 }
@@ -2549,20 +2566,15 @@ static int renesas_usb3_probe(struct platform_device *pdev)
 {
 	struct renesas_usb3 *usb3;
 	struct resource *res;
-	const struct of_device_id *match;
 	int irq, ret;
 	const struct renesas_usb3_priv *priv;
 	const struct soc_device_attribute *attr;
 
-	match = of_match_node(usb3_of_match, pdev->dev.of_node);
-	if (!match)
-		return -ENODEV;
-
 	attr = soc_device_match(renesas_usb3_quirks_match);
 	if (attr)
 		priv = attr->data;
 	else
-		priv = match->data;
+		priv = of_device_get_match_data(&pdev->dev);
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
@@ -2624,11 +2636,20 @@ static int renesas_usb3_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto err_dev_create;
 
+	/*
+	 * This is an optional. So, if this driver cannot get a phy,
+	 * this driver will not handle a phy anymore.
+	 */
+	usb3->phy = devm_phy_get(&pdev->dev, "usb");
+	if (IS_ERR(usb3->phy))
+		usb3->phy = NULL;
+
 	usb3->workaround_for_vbus = priv->workaround_for_vbus;
 
 	renesas_usb3_debugfs_init(usb3, &pdev->dev);
 
-	dev_info(&pdev->dev, "probed\n");
+	dev_info(&pdev->dev, "probed%s\n", usb3->phy ? " with phy" : "");
+	pm_runtime_enable(usb3_to_dev(usb3));
 
 	return 0;
 
@@ -2644,11 +2665,49 @@ err_alloc_prd:
 	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int renesas_usb3_suspend(struct device *dev)
+{
+	struct renesas_usb3 *usb3 = dev_get_drvdata(dev);
+
+	/* Not started */
+	if (!usb3->driver)
+		return 0;
+
+	renesas_usb3_stop_controller(usb3);
+	if (usb3->phy)
+		phy_exit(usb3->phy);
+	pm_runtime_put(dev);
+
+	return 0;
+}
+
+static int renesas_usb3_resume(struct device *dev)
+{
+	struct renesas_usb3 *usb3 = dev_get_drvdata(dev);
+
+	/* Not started */
+	if (!usb3->driver)
+		return 0;
+
+	if (usb3->phy)
+		phy_init(usb3->phy);
+	pm_runtime_get_sync(dev);
+	renesas_usb3_init_controller(usb3);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(renesas_usb3_pm_ops, renesas_usb3_suspend,
+			renesas_usb3_resume);
+
 static struct platform_driver renesas_usb3_driver = {
 	.probe		= renesas_usb3_probe,
 	.remove		= renesas_usb3_remove,
 	.driver		= {
 		.name =	(char *)udc_name,
+		.pm		= &renesas_usb3_pm_ops,
 		.of_match_table = of_match_ptr(usb3_of_match),
 	},
 };
diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c
index 42587b738a1f..31c7c5587cf9 100644
--- a/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* linux/drivers/usb/gadget/s3c-hsudc.c
  *
  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
@@ -8,11 +9,7 @@
  * The S3C24XX USB 2.0 high-speed USB controller supports upto 9 endpoints.
  * Each endpoint can be configured as either in or out endpoint. Endpoints
  * can be configured for Bulk or Interrupt transfer mode.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
+ */
 
 #include <linux/kernel.h>
 #include <linux/module.h>
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index 394abd5d65c0..f154f49e98c8 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * linux/drivers/usb/gadget/s3c2410_udc.c
  *
@@ -5,11 +6,6 @@
  *
  * Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard
  *	Additional cleanups by Ben Dooks <ben-linux@fluff.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #define pr_fmt(fmt) "s3c2410_udc: " fmt
diff --git a/drivers/usb/gadget/udc/s3c2410_udc.h b/drivers/usb/gadget/udc/s3c2410_udc.h
index 93bf225f1969..bdcaa8dd300f 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.h
+++ b/drivers/usb/gadget/udc/s3c2410_udc.h
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * linux/drivers/usb/gadget/s3c2410_udc.h
  * Samsung on-chip full speed USB device controllers
  *
  * Copyright (C) 2004-2007 Herbert Pötzl - Arnaud Patard
  *	Additional cleanups by Ben Dooks <ben-linux@fluff.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #ifndef _S3C2410_UDC_H
diff --git a/drivers/usb/gadget/udc/snps_udc_core.c b/drivers/usb/gadget/udc/snps_udc_core.c
index 38a165dbf924..d4da47f4f6f4 100644
--- a/drivers/usb/gadget/udc/snps_udc_core.c
+++ b/drivers/usb/gadget/udc/snps_udc_core.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * amd5536.c -- AMD 5536 UDC high/full speed USB device controller
  *
  * Copyright (C) 2005-2007 AMD (http://www.amd.com)
  * Author: Thomas Dahlmann
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 /*
@@ -1733,7 +1729,7 @@ static void udc_soft_reset(struct udc *dev)
 }
 
 /* RDE timer callback to set RDE bit */
-static void udc_timer_function(unsigned long v)
+static void udc_timer_function(struct timer_list *unused)
 {
 	u32 tmp;
 
@@ -1813,7 +1809,7 @@ static void udc_handle_halt_state(struct udc_ep *ep)
 }
 
 /* Stall timer callback to poll S bit and set it again after */
-static void udc_pollstall_timer_function(unsigned long v)
+static void udc_pollstall_timer_function(struct timer_list *unused)
 {
 	struct udc_ep *ep;
 	int halted = 0;
@@ -3067,14 +3063,12 @@ void udc_remove(struct udc *dev)
 	stop_timer++;
 	if (timer_pending(&udc_timer))
 		wait_for_completion(&on_exit);
-	if (udc_timer.data)
-		del_timer_sync(&udc_timer);
+	del_timer_sync(&udc_timer);
 	/* remove pollstall timer */
 	stop_pollstall_timer++;
 	if (timer_pending(&udc_pollstall_timer))
 		wait_for_completion(&on_pollstall_exit);
-	if (udc_pollstall_timer.data)
-		del_timer_sync(&udc_pollstall_timer);
+	del_timer_sync(&udc_pollstall_timer);
 	udc = NULL;
 }
 EXPORT_SYMBOL_GPL(udc_remove);
@@ -3164,10 +3158,6 @@ int udc_probe(struct udc *dev)
 	u32		reg;
 	int		retval;
 
-	/* mark timer as not initialized */
-	udc_timer.data = 0;
-	udc_pollstall_timer.data = 0;
-
 	/* device struct setup */
 	dev->gadget.ops = &udc_ops;
 
@@ -3207,13 +3197,8 @@ int udc_probe(struct udc *dev)
 		goto finished;
 
 	/* timer init */
-	init_timer(&udc_timer);
-	udc_timer.function = udc_timer_function;
-	udc_timer.data = 1;
-	/* timer pollstall init */
-	init_timer(&udc_pollstall_timer);
-	udc_pollstall_timer.function = udc_pollstall_timer_function;
-	udc_pollstall_timer.data = 1;
+	timer_setup(&udc_timer, udc_timer_function, 0);
+	timer_setup(&udc_pollstall_timer, udc_pollstall_timer_function, 0);
 
 	/* set SD */
 	reg = readl(&dev->regs->ctl);
diff --git a/drivers/usb/gadget/udc/snps_udc_plat.c b/drivers/usb/gadget/udc/snps_udc_plat.c
index e8a5fdaee37d..32f1d3e90c26 100644
--- a/drivers/usb/gadget/udc/snps_udc_plat.c
+++ b/drivers/usb/gadget/udc/snps_udc_plat.c
@@ -1,16 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * snps_udc_plat.c - Synopsys UDC Platform Driver
  *
  * Copyright (C) 2016 Broadcom
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/extcon.h>
diff --git a/drivers/usb/gadget/udc/trace.c b/drivers/usb/gadget/udc/trace.c
index 8c551ab91ad8..7430624c0bd7 100644
--- a/drivers/usb/gadget/udc/trace.c
+++ b/drivers/usb/gadget/udc/trace.c
@@ -1,17 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * trace.c - USB Gadget Framework Trace Support
  *
  * Copyright (C) 2016 Intel Corporation
  * Author: Felipe Balbi <felipe.balbi@linux.intel.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #define CREATE_TRACE_POINTS
diff --git a/drivers/usb/gadget/udc/trace.h b/drivers/usb/gadget/udc/trace.h
index da29874b5366..f07ddb3f4bb9 100644
--- a/drivers/usb/gadget/udc/trace.h
+++ b/drivers/usb/gadget/udc/trace.h
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * udc.c - Core UDC Framework
  *
  * Copyright (C) 2016 Intel Corporation
  * Author: Felipe Balbi <felipe.balbi@linux.intel.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #undef TRACE_SYSTEM
diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index de207a90571e..7da2b9ce8cb3 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Xilinx USB peripheral controller driver
  *
@@ -8,12 +9,6 @@
  *
  * Some parts of this driver code is based on the driver for at91-series
  * USB peripheral controller (at91_udc.c).
- *
- * This program is free software; you can redistribute it
- * and/or modify it under the terms of the GNU General Public
- * License as published by the Free Software Foundation;
- * either version 2 of the License, or (at your option) any
- * later version.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c
index 73a4dfba0edb..566ab261e8b7 100644
--- a/drivers/usb/gadget/usbstring.c
+++ b/drivers/usb/gadget/usbstring.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: LGPL-2.1+
 /*
  * Copyright (C) 2003 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published
- * by the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/errno.h>
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index fa5692dec832..b80a94e632af 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -45,12 +45,12 @@ config USB_XHCI_PLATFORM
 	  If unsure, say N.
 
 config USB_XHCI_MTK
-	tristate "xHCI support for Mediatek MT65xx/MT7621"
+	tristate "xHCI support for MediaTek SoCs"
 	select MFD_SYSCON
 	depends on (MIPS && SOC_MT7621) || ARCH_MEDIATEK || COMPILE_TEST
 	---help---
 	  Say 'Y' to enable the support for the xHCI host controller
-	  found in Mediatek MT65xx SoCs.
+	  found in MediaTek SoCs.
 	  If unsure, say N.
 
 config USB_XHCI_MVEBU
@@ -222,18 +222,6 @@ config USB_EHCI_HCD_AT91
           Enables support for the on-chip EHCI controller on
           Atmel chips.
 
-config USB_EHCI_MSM
-	tristate "Support for Qualcomm QSD/MSM on-chip EHCI USB controller"
-	depends on ARCH_QCOM
-	select USB_EHCI_ROOT_HUB_TT
-	---help---
-	  Enables support for the USB Host controller present on the
-	  Qualcomm chipsets. Root Hub has inbuilt TT.
-	  This driver depends on OTG driver for PHY initialization,
-	  clock management, powering up VBUS, and power management.
-	  This driver is not supported on boards like trout which
-	  has an external PHY.
-
 config USB_EHCI_TEGRA
        tristate "NVIDIA Tegra HCD support"
        depends on ARCH_TEGRA
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index cf2691fffcc0..32b036e2ffef 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB Host Controller Drivers
 #
@@ -25,6 +26,10 @@ ifneq ($(CONFIG_USB_XHCI_RCAR), )
 	xhci-plat-hcd-y		+= xhci-rcar.o
 endif
 
+ifneq ($(CONFIG_DEBUG_FS),)
+	xhci-hcd-y		+= xhci-debugfs.o
+endif
+
 obj-$(CONFIG_USB_WHCI_HCD)	+= whci/
 
 obj-$(CONFIG_USB_PCI)	+= pci-quirks.o
@@ -39,7 +44,6 @@ obj-$(CONFIG_USB_EHCI_HCD_SPEAR)	+= ehci-spear.o
 obj-$(CONFIG_USB_EHCI_HCD_STI)	+= ehci-st.o
 obj-$(CONFIG_USB_EHCI_EXYNOS)	+= ehci-exynos.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
-obj-$(CONFIG_USB_EHCI_MSM)	+= ehci-msm.o
 obj-$(CONFIG_USB_EHCI_TEGRA)	+= ehci-tegra.o
 obj-$(CONFIG_USB_W90X900_EHCI)	+= ehci-w90x900.o
 
diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index 5f425c89faf1..2400a826397a 100644
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Broadcom specific Advanced Microcontroller Bus
  * Broadcom USB-core driver (BCMA bus glue)
@@ -16,8 +17,6 @@
  *
  * Derived from the USBcore related parts of Broadcom-SB
  * Copyright 2005-2011 Broadcom Corporation
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 #include <linux/bcma/bcma.h>
 #include <linux/delay.h>
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 7440722bfbf0..3ba140ceaf52 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for EHCI UHP on Atmel chips
  *
@@ -5,10 +6,6 @@
  *                     Nicolas Ferre <nicolas.ferre@atmel.com>
  *
  *  Based on various ehci-*.c drivers
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive for
- * more details.
  */
 
 #include <linux/clk.h>
@@ -205,7 +202,8 @@ static int __maybe_unused ehci_atmel_drv_resume(struct device *dev)
 	struct atmel_ehci_priv *atmel_ehci = hcd_to_atmel_ehci_priv(hcd);
 
 	atmel_start_clock(atmel_ehci);
-	return ehci_resume(hcd, false);
+	ehci_resume(hcd, false);
+	return 0;
 }
 
 #ifdef CONFIG_OF
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index cbb9b8e12c3c..19f00424f53e 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -1,16 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2001-2002 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
  */
 
 /* this file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index 26b641100639..d9145a8f35d2 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * SAMSUNG EXYNOS USB HOST EHCI Controller
  *
  * Copyright (C) 2011 Samsung Electronics Co.Ltd
  * Author: Jingoo Han <jg1.han@samsung.com>
  * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index d025cc06dda7..c5094cb88cd5 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2005-2009 MontaVista Software, Inc.
  * Copyright 2008,2012,2015      Freescale Semiconductor, Inc.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  * Ported to 834x by Randy Vinson <rvinson@mvista.com> using code provided
  * by Hunter Wu.
  * Power Management support by Dave Liu <daveliu@freescale.com>,
diff --git a/drivers/usb/host/ehci-fsl.h b/drivers/usb/host/ehci-fsl.h
index 1a8a60a57cf2..cbc422032e50 100644
--- a/drivers/usb/host/ehci-fsl.h
+++ b/drivers/usb/host/ehci-fsl.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /* Copyright (C) 2005-2010,2012 Freescale Semiconductor, Inc.
  * Copyright (c) 2005 MontaVista Software
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #ifndef _EHCI_FSL_H
 #define _EHCI_FSL_H
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index 21650044b09e..656b8c08efc8 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Aeroflex Gaisler GRLIB GRUSBHC EHCI host controller
  *
@@ -9,20 +10,6 @@
  * (c) Valentine Barshak <vbarshak@ru.mvista.com>
  * and in turn based on "ehci-ppc-soc.c" by Stefan Roese <sr@denx.de>
  * and "ohci-ppc-of.c" by Sylvain Munaut <tnt@246tNt.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/err.h>
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 6e834b83a104..7f0737449df7 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Enhanced Host Controller Interface (EHCI) driver for USB.
  *
  * Maintainer: Alan Stern <stern@rowland.harvard.edu>
  *
  * Copyright (c) 2000-2004 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
@@ -1012,7 +999,7 @@ idle_timeout:
 			qh_destroy(ehci, qh);
 			break;
 		}
-		/* else FALL THROUGH */
+		/* fall through */
 	default:
 		/* caller was supposed to have unlinked any requests;
 		 * that's not our job.  just leak this memory.
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index df169c8e7225..facafdf8fb95 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2001-2004 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* this file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index 9b7e63977215..21307d862af6 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2001 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* this file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
deleted file mode 100644
index 2f8d3af811ce..000000000000
--- a/drivers/usb/host/ehci-msm.c
+++ /dev/null
@@ -1,265 +0,0 @@
-/* ehci-msm.c - HSUSB Host Controller Driver Implementation
- *
- * Copyright (c) 2008-2011, Code Aurora Forum. All rights reserved.
- *
- * Partly derived from ehci-fsl.c and ehci-hcd.c
- * Copyright (c) 2000-2004 by David Brownell
- * Copyright (c) 2005 MontaVista Software
- *
- * All source code in this file is licensed under the following license except
- * where indicated.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- *
- * See the GNU General Public License for more details.
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, you can find it at http://www.fsf.org
- */
-
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/usb/otg.h>
-#include <linux/usb/msm_hsusb_hw.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-#include <linux/acpi.h>
-
-#include "ehci.h"
-
-#define MSM_USB_BASE (hcd->regs)
-
-#define DRIVER_DESC "Qualcomm On-Chip EHCI Host Controller"
-
-static const char hcd_name[] = "ehci-msm";
-static struct hc_driver __read_mostly msm_hc_driver;
-
-static int ehci_msm_reset(struct usb_hcd *hcd)
-{
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-	int retval;
-
-	ehci->caps = USB_CAPLENGTH;
-	hcd->has_tt = 1;
-
-	retval = ehci_setup(hcd);
-	if (retval)
-		return retval;
-
-	/* select ULPI phy and clear other status/control bits in PORTSC */
-	writel(PORTSC_PTS_ULPI, USB_PORTSC);
-	/* bursts of unspecified length. */
-	writel(0, USB_AHBBURST);
-	/* Use the AHB transactor, allow posted data writes */
-	writel(0x8, USB_AHBMODE);
-	/* Disable streaming mode and select host mode */
-	writel(0x13, USB_USBMODE);
-	/* Disable ULPI_TX_PKT_EN_CLR_FIX which is valid only for HSIC */
-	writel(readl(USB_GENCONFIG_2) & ~ULPI_TX_PKT_EN_CLR_FIX, USB_GENCONFIG_2);
-
-	return 0;
-}
-
-static int ehci_msm_probe(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd;
-	struct resource *res;
-	struct usb_phy *phy;
-	int ret;
-
-	dev_dbg(&pdev->dev, "ehci_msm proble\n");
-
-	hcd = usb_create_hcd(&msm_hc_driver, &pdev->dev, dev_name(&pdev->dev));
-	if (!hcd) {
-		dev_err(&pdev->dev, "Unable to create HCD\n");
-		return  -ENOMEM;
-	}
-
-	ret = platform_get_irq(pdev, 0);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Unable to get IRQ resource\n");
-		goto put_hcd;
-	}
-	hcd->irq = ret;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Unable to get memory resource\n");
-		ret = -ENODEV;
-		goto put_hcd;
-	}
-
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-	hcd->regs = devm_ioremap(&pdev->dev, hcd->rsrc_start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		dev_err(&pdev->dev, "ioremap failed\n");
-		ret = -ENOMEM;
-		goto put_hcd;
-	}
-
-	/*
-	 * If there is an OTG driver, let it take care of PHY initialization,
-	 * clock management, powering up VBUS, mapping of registers address
-	 * space and power management.
-	 */
-	if (pdev->dev.of_node)
-		phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
-	else
-		phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
-
-	if (IS_ERR(phy)) {
-		if (PTR_ERR(phy) == -EPROBE_DEFER) {
-			dev_err(&pdev->dev, "unable to find transceiver\n");
-			ret = -EPROBE_DEFER;
-			goto put_hcd;
-		}
-		phy = NULL;
-	}
-
-	hcd->usb_phy = phy;
-	device_init_wakeup(&pdev->dev, 1);
-
-	if (phy && phy->otg) {
-		/*
-		 * MSM OTG driver takes care of adding the HCD and
-		 * placing hardware into low power mode via runtime PM.
-		 */
-		ret = otg_set_host(phy->otg, &hcd->self);
-		if (ret < 0) {
-			dev_err(&pdev->dev, "unable to register with transceiver\n");
-			goto put_hcd;
-		}
-
-		pm_runtime_no_callbacks(&pdev->dev);
-		pm_runtime_enable(&pdev->dev);
-	} else {
-		ret = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
-		if (ret)
-			goto put_hcd;
-	}
-
-	return 0;
-
-put_hcd:
-	usb_put_hcd(hcd);
-
-	return ret;
-}
-
-static int ehci_msm_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	device_init_wakeup(&pdev->dev, 0);
-	pm_runtime_disable(&pdev->dev);
-	pm_runtime_set_suspended(&pdev->dev);
-
-	if (hcd->usb_phy && hcd->usb_phy->otg)
-		otg_set_host(hcd->usb_phy->otg, NULL);
-	else
-		usb_remove_hcd(hcd);
-
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ehci_msm_pm_suspend(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-	bool do_wakeup = device_may_wakeup(dev);
-
-	dev_dbg(dev, "ehci-msm PM suspend\n");
-
-	/* Only call ehci_suspend if ehci_setup has been done */
-	if (ehci->sbrn)
-		return ehci_suspend(hcd, do_wakeup);
-
-	return 0;
-}
-
-static int ehci_msm_pm_resume(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
-
-	dev_dbg(dev, "ehci-msm PM resume\n");
-
-	/* Only call ehci_resume if ehci_setup has been done */
-	if (ehci->sbrn)
-		ehci_resume(hcd, false);
-
-	return 0;
-}
-
-#else
-#define ehci_msm_pm_suspend	NULL
-#define ehci_msm_pm_resume	NULL
-#endif
-
-static const struct dev_pm_ops ehci_msm_dev_pm_ops = {
-	.suspend         = ehci_msm_pm_suspend,
-	.resume          = ehci_msm_pm_resume,
-};
-
-static const struct acpi_device_id msm_ehci_acpi_ids[] = {
-	{ "QCOM8040", 0 },
-	{ }
-};
-MODULE_DEVICE_TABLE(acpi, msm_ehci_acpi_ids);
-
-static const struct of_device_id msm_ehci_dt_match[] = {
-	{ .compatible = "qcom,ehci-host", },
-	{}
-};
-MODULE_DEVICE_TABLE(of, msm_ehci_dt_match);
-
-static struct platform_driver ehci_msm_driver = {
-	.probe	= ehci_msm_probe,
-	.remove	= ehci_msm_remove,
-	.shutdown = usb_hcd_platform_shutdown,
-	.driver = {
-		   .name = "msm_hsusb_host",
-		   .pm = &ehci_msm_dev_pm_ops,
-		   .of_match_table = msm_ehci_dt_match,
-		   .acpi_match_table = ACPI_PTR(msm_ehci_acpi_ids),
-	},
-};
-
-static const struct ehci_driver_overrides msm_overrides __initconst = {
-	.reset = ehci_msm_reset,
-};
-
-static int __init ehci_msm_init(void)
-{
-	if (usb_disabled())
-		return -ENODEV;
-
-	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
-	ehci_init_driver(&msm_hc_driver, &msm_overrides);
-	return platform_driver_register(&ehci_msm_driver);
-}
-module_init(ehci_msm_init);
-
-static void __exit ehci_msm_cleanup(void)
-{
-	platform_driver_unregister(&ehci_msm_driver);
-}
-module_exit(ehci_msm_cleanup);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_ALIAS("platform:msm-ehci");
-MODULE_LICENSE("GPL");
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 849806a75f1c..de764459e05a 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
  * Author: Chao Xie <chao.xie@marvell.com>
  *        Neil Zhang <zhangwm@marvell.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index c7a9b31eeaef..c9f91e6c72b6 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -1,20 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2008 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
  * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 4d308533bc83..854b146a457d 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * ehci-omap.c - driver for USBHOST on OMAP3/4 processors
  *
@@ -14,21 +15,6 @@
  *	Contact: Felipe Balbi <felipe.balbi@nokia.com>
  *
  * Based on "ehci-fsl.c" and "ehci-au1xxx.c" ehci glue layers
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 1aec87ec68df..1ad72647a069 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/host/ehci-orion.c
  *
  * Tzachi Perelstein <tzachi@marvell.com>
- *
- * This file is licensed under  the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 93326974ff4b..fe9422d3bcdc 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * EHCI HCD (Host Controller Driver) PCI Bus Glue.
  *
  * Copyright (c) 2000-2004 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index f1908ea9fbd8..b065a960adc2 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic platform ehci driver
  *
@@ -16,8 +17,6 @@
  * Copyright 2000-2002 David Brownell
  * Copyright 1999 Linus Torvalds
  * Copyright 1999 Gregory P. Smith
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 #include <linux/acpi.h>
 #include <linux/clk.h>
@@ -40,12 +39,11 @@
 
 #define DRIVER_DESC "EHCI generic platform driver"
 #define EHCI_MAX_CLKS 4
-#define EHCI_MAX_RSTS 4
 #define hcd_to_ehci_priv(h) ((struct ehci_platform_priv *)hcd_to_ehci(h)->priv)
 
 struct ehci_platform_priv {
 	struct clk *clks[EHCI_MAX_CLKS];
-	struct reset_control *rsts[EHCI_MAX_RSTS];
+	struct reset_control *rsts;
 	struct phy **phys;
 	int num_phys;
 	bool reset_on_resume;
@@ -151,7 +149,7 @@ static int ehci_platform_probe(struct platform_device *dev)
 	struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev);
 	struct ehci_platform_priv *priv;
 	struct ehci_hcd *ehci;
-	int err, irq, phy_num, clk = 0, rst;
+	int err, irq, phy_num, clk = 0;
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -239,22 +237,16 @@ static int ehci_platform_probe(struct platform_device *dev)
 		}
 	}
 
-	for (rst = 0; rst < EHCI_MAX_RSTS; rst++) {
-		priv->rsts[rst] = devm_reset_control_get_shared_by_index(
-					&dev->dev, rst);
-		if (IS_ERR(priv->rsts[rst])) {
-			err = PTR_ERR(priv->rsts[rst]);
-			if (err == -EPROBE_DEFER)
-				goto err_reset;
-			priv->rsts[rst] = NULL;
-			break;
-		}
-
-		err = reset_control_deassert(priv->rsts[rst]);
-		if (err)
-			goto err_reset;
+	priv->rsts = devm_reset_control_array_get_optional_shared(&dev->dev);
+	if (IS_ERR(priv->rsts)) {
+		err = PTR_ERR(priv->rsts);
+		goto err_put_clks;
 	}
 
+	err = reset_control_deassert(priv->rsts);
+	if (err)
+		goto err_put_clks;
+
 	if (pdata->big_endian_desc)
 		ehci->big_endian_desc = 1;
 	if (pdata->big_endian_mmio)
@@ -310,8 +302,7 @@ err_power:
 	if (pdata->power_off)
 		pdata->power_off(dev);
 err_reset:
-	while (--rst >= 0)
-		reset_control_assert(priv->rsts[rst]);
+	reset_control_assert(priv->rsts);
 err_put_clks:
 	while (--clk >= 0)
 		clk_put(priv->clks[clk]);
@@ -329,15 +320,14 @@ static int ehci_platform_remove(struct platform_device *dev)
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
 	struct usb_ehci_pdata *pdata = dev_get_platdata(&dev->dev);
 	struct ehci_platform_priv *priv = hcd_to_ehci_priv(hcd);
-	int clk, rst;
+	int clk;
 
 	usb_remove_hcd(hcd);
 
 	if (pdata->power_off)
 		pdata->power_off(dev);
 
-	for (rst = 0; rst < EHCI_MAX_RSTS && priv->rsts[rst]; rst++)
-		reset_control_assert(priv->rsts[rst]);
+	reset_control_assert(priv->rsts);
 
 	for (clk = 0; clk < EHCI_MAX_CLKS && priv->clks[clk]; clk++)
 		clk_put(priv->clks[clk]);
diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c
index 342816a7f8b1..46e160370d6e 100644
--- a/drivers/usb/host/ehci-pmcmsp.c
+++ b/drivers/usb/host/ehci-pmcmsp.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PMC MSP EHCI (Host Controller Driver) for USB.
  *
  * (C) Copyright 2006-2010 PMC-Sierra Inc
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
  */
 
 /* includes */
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 1a10c8d542ca..576f7d79ad4e 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * EHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 7934ff9b35e1..8c733492d8fe 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  PS3 EHCI Host Controller driver
  *
  *  Copyright (C) 2006 Sony Computer Entertainment Inc.
  *  Copyright 2006 Sony Corp.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <asm/firmware.h>
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 8f3f055c05fa..88158324dcae 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2001-2004 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* this file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 6bc6304672bc..e56db44708bc 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1,20 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2001-2004 by David Brownell
  * Copyright (c) 2003 Michal Sojka, for high-speed iso transfers
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* this file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index 5caf88d679e4..a9ee767952c1 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SuperH EHCI host controller driver
  *
  * Copyright (C) 2010  Paul Mundt
  *
  * Based on ohci-sh.c and ehci-atmel.c.
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
  */
 #include <linux/platform_device.h>
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 1f25c7985f5b..add796c78561 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * Driver for EHCI HCD on SPEAr SOC
 *
@@ -5,10 +6,6 @@
 * Deepak Sikri <deepak.sikri@st.com>
 *
 * Based on various ehci-*.c drivers
-*
-* This file is subject to the terms and conditions of the GNU General Public
-* License. See the file COPYING in the main directory of this archive for
-* more details.
 */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ehci-st.c b/drivers/usb/host/ehci-st.c
index be4a2788fc58..3c1362ab70be 100644
--- a/drivers/usb/host/ehci-st.c
+++ b/drivers/usb/host/ehci-st.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ST EHCI driver
  *
@@ -6,10 +7,6 @@
  * Author: Peter Griffin <peter.griffin@linaro.org>
  *
  * Derived from ehci-platform.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ehci-sysfs.c b/drivers/usb/host/ehci-sysfs.c
index 5216f2b09d63..71fb61dd4a87 100644
--- a/drivers/usb/host/ehci-sysfs.c
+++ b/drivers/usb/host/ehci-sysfs.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007 by Alan Stern
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* this file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 9a3d7db5be57..c809f7d2f08f 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -1,19 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * EHCI-compliant USB host controller driver for NVIDIA Tegra SoCs
  *
  * Copyright (C) 2010 Google, Inc.
  * Copyright (C) 2009 - 2013 NVIDIA Corporation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c
index bdb93b6a356f..610ed437ed2c 100644
--- a/drivers/usb/host/ehci-tilegx.c
+++ b/drivers/usb/host/ehci-tilegx.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2012 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
  */
 
 /*
diff --git a/drivers/usb/host/ehci-timer.c b/drivers/usb/host/ehci-timer.c
index 0b6cdb723192..4fcebda4b79d 100644
--- a/drivers/usb/host/ehci-timer.c
+++ b/drivers/usb/host/ehci-timer.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 by Alan Stern
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
  */
 
 /* This file is part of ehci-hcd.c */
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index 63b9d0c67963..6d77ace1697b 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/driver/usb/host/ehci-w90x900.c
  *
  * Copyright (c) 2008 Nuvoton technology corporation.
  *
  * Wan ZongShun <mcuos.com@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation;version 2 of the License.
- *
  */
 
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c
index f54480850bb8..d2a27578e440 100644
--- a/drivers/usb/host/ehci-xilinx-of.c
+++ b/drivers/usb/host/ehci-xilinx-of.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * EHCI HCD (Host Controller Driver) for USB.
  *
@@ -8,21 +9,6 @@
  * Based on "ehci-ppc-of.c" by Valentine Barshak <vbarshak@ru.mvista.com>
  * and "ehci-ppc-soc.c" by Stefan Roese <sr@denx.de>
  * and "ohci-ppc-of.c" by Sylvain Munaut <tnt@246tNt.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #include <linux/err.h>
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index a8e36170d8b8..c8e9a48e1d51 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2001-2002 by David Brownell
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef __LINUX_EHCI_HCD_H
diff --git a/drivers/usb/host/fhci-dbg.c b/drivers/usb/host/fhci-dbg.c
index b58e7a60913a..fafa91189e45 100644
--- a/drivers/usb/host/fhci-dbg.c
+++ b/drivers/usb/host/fhci-dbg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 55a0ae6f2d74..48fe9e6c2465 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/host/fhci-hub.c b/drivers/usb/host/fhci-hub.c
index 60d55eb3de0d..c359dcdb9b13 100644
--- a/drivers/usb/host/fhci-hub.c
+++ b/drivers/usb/host/fhci-hub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/fhci-mem.c b/drivers/usb/host/fhci-mem.c
index b0b88f57a5ac..658aedc6adc1 100644
--- a/drivers/usb/host/fhci-mem.c
+++ b/drivers/usb/host/fhci-mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/fhci-q.c b/drivers/usb/host/fhci-q.c
index 03be7494a476..669c240523fe 100644
--- a/drivers/usb/host/fhci-q.c
+++ b/drivers/usb/host/fhci-q.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/fhci-sched.c b/drivers/usb/host/fhci-sched.c
index 2f162faabbca..3d12cdd5f999 100644
--- a/drivers/usb/host/fhci-sched.c
+++ b/drivers/usb/host/fhci-sched.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/fhci-tds.c b/drivers/usb/host/fhci-tds.c
index f82ad5df1b0d..3a4e8f616751 100644
--- a/drivers/usb/host/fhci-tds.c
+++ b/drivers/usb/host/fhci-tds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/fhci.h b/drivers/usb/host/fhci.h
index 3fc82c1c3c73..e7ec41d62410 100644
--- a/drivers/usb/host/fhci.h
+++ b/drivers/usb/host/fhci.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Freescale QUICC Engine USB Host Controller Driver
  *
@@ -8,11 +9,6 @@
  *               Peter Barada <peterb@logicpd.com>
  * Copyright (c) MontaVista Software, Inc. 2008.
  *               Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #ifndef __FHCI_H
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index 457cc6525abd..62fc955085a1 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /* Faraday FOTG210 EHCI-like driver
  *
  * Copyright (c) 2013 Faraday Technology Corporation
@@ -7,20 +8,6 @@
  *	   Po-Yu Chuang <ratbert.chuang@gmail.com>
  *
  * Most of code borrowed from the Linux-3.7 EHCI driver
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #include <linux/module.h>
 #include <linux/device.h>
@@ -5449,7 +5436,7 @@ idle_timeout:
 			qh_destroy(fotg210, qh);
 			break;
 		}
-		/* else FALL THROUGH */
+		/* fall through */
 	default:
 		/* caller was supposed to have unlinked any requests;
 		 * that's not our job.  just leak this memory.
diff --git a/drivers/usb/host/fotg210.h b/drivers/usb/host/fotg210.h
index b5cfa7aeb277..7fcd785c7bc8 100644
--- a/drivers/usb/host/fotg210.h
+++ b/drivers/usb/host/fotg210.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_FOTG210_H
 #define __LINUX_FOTG210_H
 
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index ba557cdba8ef..677f9d592109 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Setup platform devices needed by the Freescale multi-port host
  * and/or dual-role USB controller modules based on the description
  * in flat device tree.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index da3b18038d23..684d6f074c3a 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Host Wire Adapter:
  * Driver glue, HWA-specific functions, bridges to WAHC and WUSBHC
@@ -5,21 +6,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * The HWA driver is a simple layer that forwards requests to the WAHC
  * (Wire Adater Host Controller) or WUSBHC (Wireless USB Host
  * Controller) layers.
diff --git a/drivers/usb/host/imx21-dbg.c b/drivers/usb/host/imx21-dbg.c
index 4f320d050da7..b964f9a51d87 100644
--- a/drivers/usb/host/imx21-dbg.c
+++ b/drivers/usb/host/imx21-dbg.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2009 by Martin Fuzzey
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* this file is part of imx21-hcd.c */
diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c
index 39ae7fb64b6f..3a8bbfe43a8e 100644
--- a/drivers/usb/host/imx21-hcd.c
+++ b/drivers/usb/host/imx21-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Host Controller Driver for IMX21
  *
@@ -5,20 +6,6 @@
  * Copyright (C) 2009 Martin Fuzzey
  * Originally written by Jay Monkman <jtm@lopingdog.com>
  * Ported to 2.6.30, debugged and enhanced by Martin Fuzzey
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 
diff --git a/drivers/usb/host/imx21-hcd.h b/drivers/usb/host/imx21-hcd.h
index 05122f8a6983..7b9cf0a38d6e 100644
--- a/drivers/usb/host/imx21-hcd.h
+++ b/drivers/usb/host/imx21-hcd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Macros and prototypes for i.MX21
  *
@@ -5,20 +6,6 @@
  * Copyright (C) 2009 Martin Fuzzey
  * Originally written by Jay Monkman <jtm@lopingdog.com>
  * Ported to 2.6.30, debugged and enhanced by Martin Fuzzey
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef __LINUX_IMX21_HCD_H__
diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c
index 73fec38754f9..5f9234b9cf7b 100644
--- a/drivers/usb/host/isp116x-hcd.c
+++ b/drivers/usb/host/isp116x-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ISP116x HCD (Host Controller Driver) for USB.
  *
@@ -1018,6 +1019,7 @@ static int isp116x_hub_control(struct usb_hcd *hcd,
 			spin_lock_irqsave(&isp116x->lock, flags);
 			isp116x_write_reg32(isp116x, HCRHSTATUS, RH_HS_OCIC);
 			spin_unlock_irqrestore(&isp116x->lock, flags);
+			/* fall through */
 		case C_HUB_LOCAL_POWER:
 			DBG("C_HUB_LOCAL_POWER\n");
 			break;
@@ -1433,8 +1435,10 @@ static int isp116x_bus_suspend(struct usb_hcd *hcd)
 		isp116x_write_reg32(isp116x, HCCONTROL,
 				    (val & ~HCCONTROL_HCFS) |
 				    HCCONTROL_USB_RESET);
+		/* fall through */
 	case HCCONTROL_USB_RESET:
 		ret = -EBUSY;
+		/* fall through */
 	default:		/* HCCONTROL_USB_SUSPEND */
 		spin_unlock_irqrestore(&isp116x->lock, flags);
 		break;
diff --git a/drivers/usb/host/isp116x.h b/drivers/usb/host/isp116x.h
index dd34b7a33965..a5e929c10d53 100644
--- a/drivers/usb/host/isp116x.h
+++ b/drivers/usb/host/isp116x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ISP116x register declarations and HCD data structures
  *
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 9b7e307e2d54..b21c386e6a46 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ISP1362 HCD (Host Controller Driver) for USB.
  *
@@ -712,7 +713,7 @@ static inline void enable_istl_transfers(struct isp1362_hcd *isp1362_hcd, int fl
 static int submit_req(struct isp1362_hcd *isp1362_hcd, struct urb *urb,
 		      struct isp1362_ep *ep, struct isp1362_ep_queue *epq)
 {
-	int index = epq->free_ptd;
+	int index;
 
 	prepare_ptd(isp1362_hcd, urb, ep, epq, 0);
 	index = claim_ptd_buffers(epq, ep, ep->length);
@@ -1578,6 +1579,7 @@ static int isp1362_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			spin_lock_irqsave(&isp1362_hcd->lock, flags);
 			isp1362_write_reg32(isp1362_hcd, HCRHSTATUS, RH_HS_OCIC);
 			spin_unlock_irqrestore(&isp1362_hcd->lock, flags);
+			break;
 		case C_HUB_LOCAL_POWER:
 			DBG(0, "C_HUB_LOCAL_POWER\n");
 			break;
@@ -2251,7 +2253,6 @@ static int isp1362_mem_config(struct usb_hcd *hcd)
 		return -ENOMEM;
 	}
 
-	total = istl_size + intl_size + atl_size;
 	spin_lock_irqsave(&isp1362_hcd->lock, flags);
 
 	for (i = 0; i < 2; i++) {
diff --git a/drivers/usb/host/isp1362.h b/drivers/usb/host/isp1362.h
index 3b0b4847c3a9..da79e36ced89 100644
--- a/drivers/usb/host/isp1362.h
+++ b/drivers/usb/host/isp1362.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ISP1362 HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/max3421-hcd.c b/drivers/usb/host/max3421-hcd.c
index 0ece9a9341e5..afa321ab55fc 100644
--- a/drivers/usb/host/max3421-hcd.c
+++ b/drivers/usb/host/max3421-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MAX3421 Host Controller driver for USB.
  *
@@ -60,6 +61,7 @@
 #include <linux/spi/spi.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
+#include <linux/of.h>
 
 #include <linux/platform_data/max3421-hcd.h>
 
@@ -85,6 +87,8 @@
 			  USB_PORT_STAT_C_OVERCURRENT | \
 			  USB_PORT_STAT_C_RESET) << 16)
 
+#define MAX3421_GPOUT_COUNT	8
+
 enum max3421_rh_state {
 	MAX3421_RH_RESET,
 	MAX3421_RH_SUSPENDED,
@@ -1672,7 +1676,7 @@ max3421_gpout_set_value(struct usb_hcd *hcd, u8 pin_number, u8 value)
 	u8 mask, idx;
 
 	--pin_number;
-	if (pin_number > 7)
+	if (pin_number >= MAX3421_GPOUT_COUNT)
 		return;
 
 	mask = 1u << (pin_number % 4);
@@ -1696,10 +1700,10 @@ max3421_hub_control(struct usb_hcd *hcd, u16 type_req, u16 value, u16 index,
 	unsigned long flags;
 	int retval = 0;
 
-	spin_lock_irqsave(&max3421_hcd->lock, flags);
-
 	pdata = spi->dev.platform_data;
 
+	spin_lock_irqsave(&max3421_hcd->lock, flags);
+
 	switch (type_req) {
 	case ClearHubFeature:
 		break;
@@ -1832,10 +1836,34 @@ static const struct hc_driver max3421_hcd_desc = {
 };
 
 static int
+max3421_of_vbus_en_pin(struct device *dev, struct max3421_hcd_platform_data *pdata)
+{
+	int retval;
+	uint32_t value[2];
+
+	if (!pdata)
+		return -EINVAL;
+
+	retval = of_property_read_u32_array(dev->of_node, "maxim,vbus-en-pin", value, 2);
+	if (retval) {
+		dev_err(dev, "device tree node property 'maxim,vbus-en-pin' is missing\n");
+		return retval;
+	}
+	dev_info(dev, "property 'maxim,vbus-en-pin' value is <%d %d>\n", value[0], value[1]);
+
+	pdata->vbus_gpout = value[0];
+	pdata->vbus_active_level = value[1];
+
+	return 0;
+}
+
+static int
 max3421_probe(struct spi_device *spi)
 {
+	struct device *dev = &spi->dev;
 	struct max3421_hcd *max3421_hcd;
 	struct usb_hcd *hcd = NULL;
+	struct max3421_hcd_platform_data *pdata = NULL;
 	int retval = -ENOMEM;
 
 	if (spi_setup(spi) < 0) {
@@ -1843,6 +1871,41 @@ max3421_probe(struct spi_device *spi)
 		return -EFAULT;
 	}
 
+	if (!spi->irq) {
+		dev_err(dev, "Failed to get SPI IRQ");
+		return -EFAULT;
+	}
+
+	if (IS_ENABLED(CONFIG_OF) && dev->of_node) {
+		pdata = devm_kzalloc(&spi->dev, sizeof(*pdata), GFP_KERNEL);
+		if (!pdata) {
+			retval = -ENOMEM;
+			goto error;
+		}
+		retval = max3421_of_vbus_en_pin(dev, pdata);
+		if (retval)
+			goto error;
+
+		spi->dev.platform_data = pdata;
+	}
+
+	pdata = spi->dev.platform_data;
+	if (!pdata) {
+		dev_err(&spi->dev, "driver configuration data is not provided\n");
+		retval = -EFAULT;
+		goto error;
+	}
+	if (pdata->vbus_active_level > 1) {
+		dev_err(&spi->dev, "vbus active level value %d is out of range (0/1)\n", pdata->vbus_active_level);
+		retval = -EINVAL;
+		goto error;
+	}
+	if (pdata->vbus_gpout < 1 || pdata->vbus_gpout > MAX3421_GPOUT_COUNT) {
+		dev_err(&spi->dev, "vbus gpout value %d is out of range (1..8)\n", pdata->vbus_gpout);
+		retval = -EINVAL;
+		goto error;
+	}
+
 	hcd = usb_create_hcd(&max3421_hcd_desc, &spi->dev,
 			     dev_name(&spi->dev));
 	if (!hcd) {
@@ -1885,6 +1948,11 @@ max3421_probe(struct spi_device *spi)
 	return 0;
 
 error:
+	if (IS_ENABLED(CONFIG_OF) && dev->of_node && pdata) {
+		devm_kfree(&spi->dev, pdata);
+		spi->dev.platform_data = NULL;
+	}
+
 	if (hcd) {
 		kfree(max3421_hcd->tx);
 		kfree(max3421_hcd->rx);
@@ -1929,11 +1997,18 @@ max3421_remove(struct spi_device *spi)
 	return 0;
 }
 
+static const struct of_device_id max3421_of_match_table[] = {
+	{ .compatible = "maxim,max3421", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, max3421_of_match_table);
+
 static struct spi_driver max3421_driver = {
 	.probe		= max3421_probe,
 	.remove		= max3421_remove,
 	.driver		= {
 		.name	= "max3421-hcd",
+		.of_match_table = of_match_ptr(max3421_of_match_table),
 	},
 };
 
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 5302f988e7e6..5ad9e9bdc8ee 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 05da2cb59612..0c507a0cfe1f 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
@@ -5,10 +6,6 @@
  *
  * Derived from: ohci-omap.c and ohci-s3c2410.c
  * Copyright (C) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2. This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c
index c3eded317495..ac7d4ac34b02 100644
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 6865b919403f..a39fae41bc70 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -1,14 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * SAMSUNG EXYNOS USB HOST OHCI Controller
  *
  * Copyright (C) 2011 Samsung Electronics Co.Ltd
  * Author: Jingoo Han <jg1.han@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 44924824fa41..10887e09e9bc 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Open Host Controller Interface (OHCI) driver for USB.
  *
@@ -382,7 +383,7 @@ sanitize:
 			ed_free (ohci, ed);
 			break;
 		}
-		/* else FALL THROUGH */
+		/* fall through */
 	default:
 		/* caller was supposed to have unlinked any requests;
 		 * that's not our job.  can't recover; must leak ed.
@@ -785,7 +786,7 @@ static void io_watchdog_func(unsigned long _ohci)
 		}
 
 		/* find the last TD processed by the controller. */
-		head = hc32_to_cpu(ohci, ACCESS_ONCE(ed->hwHeadP)) & TD_MASK;
+		head = hc32_to_cpu(ohci, READ_ONCE(ed->hwHeadP)) & TD_MASK;
 		td_start = td;
 		td_next = list_prepare_entry(td, &ed->td_list, td_list);
 		list_for_each_entry_continue(td_next, &ed->td_list, td_list) {
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 248eb7702463..fb7aaa3b9d06 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-mem.c b/drivers/usb/host/ohci-mem.c
index ed8a762b8670..b3da3f12e5b1 100644
--- a/drivers/usb/host/ohci-mem.c
+++ b/drivers/usb/host/ohci-mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 6df8e2ed40fd..f5f532601092 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * driver for NXP USB Host devices
  *
@@ -13,10 +14,7 @@
  * NOTE: This driver does not have suspend/resume functionality
  * This driver is intended for engineering development purposes only
  *
- * 2005-2006 (c) MontaVista Software, Inc. This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
+ * 2005-2006 (c) MontaVista Software, Inc.
  */
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 91393ec7d850..0201c49bc4fc 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index a84aebe9b0a9..fbcd34911025 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 61fe2b985070..1e6c954f4b3f 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic platform ohci driver
  *
@@ -11,8 +12,6 @@
  * Copyright 2000-2002 David Brownell
  * Copyright 1999 Linus Torvalds
  * Copyright 1999 Gregory P. Smith
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 
 #include <linux/clk.h>
@@ -34,12 +33,11 @@
 
 #define DRIVER_DESC "OHCI generic platform driver"
 #define OHCI_MAX_CLKS 3
-#define OHCI_MAX_RESETS 2
 #define hcd_to_ohci_priv(h) ((struct ohci_platform_priv *)hcd_to_ohci(h)->priv)
 
 struct ohci_platform_priv {
 	struct clk *clks[OHCI_MAX_CLKS];
-	struct reset_control *resets[OHCI_MAX_RESETS];
+	struct reset_control *resets;
 	struct phy **phys;
 	int num_phys;
 };
@@ -119,7 +117,7 @@ static int ohci_platform_probe(struct platform_device *dev)
 	struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
 	struct ohci_platform_priv *priv;
 	struct ohci_hcd *ohci;
-	int err, irq, phy_num, clk = 0, rst = 0;
+	int err, irq, phy_num, clk = 0;
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -204,21 +202,17 @@ static int ohci_platform_probe(struct platform_device *dev)
 				break;
 			}
 		}
-		for (rst = 0; rst < OHCI_MAX_RESETS; rst++) {
-			priv->resets[rst] =
-				devm_reset_control_get_shared_by_index(
-								&dev->dev, rst);
-			if (IS_ERR(priv->resets[rst])) {
-				err = PTR_ERR(priv->resets[rst]);
-				if (err == -EPROBE_DEFER)
-					goto err_reset;
-				priv->resets[rst] = NULL;
-				break;
-			}
-			err = reset_control_deassert(priv->resets[rst]);
-			if (err)
-				goto err_reset;
+
+		priv->resets = devm_reset_control_array_get_optional_shared(
+								&dev->dev);
+		if (IS_ERR(priv->resets)) {
+			err = PTR_ERR(priv->resets);
+			goto err_put_clks;
 		}
+
+		err = reset_control_deassert(priv->resets);
+		if (err)
+			goto err_put_clks;
 	}
 
 	if (pdata->big_endian_desc)
@@ -279,8 +273,7 @@ err_power:
 		pdata->power_off(dev);
 err_reset:
 	pm_runtime_disable(&dev->dev);
-	while (--rst >= 0)
-		reset_control_assert(priv->resets[rst]);
+	reset_control_assert(priv->resets);
 err_put_clks:
 	while (--clk >= 0)
 		clk_put(priv->clks[clk]);
@@ -298,7 +291,7 @@ static int ohci_platform_remove(struct platform_device *dev)
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
 	struct usb_ohci_pdata *pdata = dev_get_platdata(&dev->dev);
 	struct ohci_platform_priv *priv = hcd_to_ohci_priv(hcd);
-	int clk, rst;
+	int clk;
 
 	pm_runtime_get_sync(&dev->dev);
 	usb_remove_hcd(hcd);
@@ -306,8 +299,7 @@ static int ohci_platform_remove(struct platform_device *dev)
 	if (pdata->power_off)
 		pdata->power_off(dev);
 
-	for (rst = 0; rst < OHCI_MAX_RESETS && priv->resets[rst]; rst++)
-		reset_control_assert(priv->resets[rst]);
+	reset_control_assert(priv->resets);
 
 	for (clk = 0; clk < OHCI_MAX_CLKS && priv->clks[clk]; clk++)
 		clk_put(priv->clks[clk]);
diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 4f87a5c61b08..76a9b40b08f1 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-ps3.c b/drivers/usb/host/ohci-ps3.c
index 71d8bc4c27f6..20a23d795adf 100644
--- a/drivers/usb/host/ohci-ps3.c
+++ b/drivers/usb/host/ohci-ps3.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  PS3 OHCI Host Controller driver
  *
  *  Copyright (C) 2006 Sony Computer Entertainment Inc.
  *  Copyright 2006 Sony Corp.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <asm/firmware.h>
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 21c010ffb03c..3e2474959735 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index 641fed609911..b2ec8c399363 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index b006b93126f7..4511e27e9da8 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c
index 3a9ea32508df..ebec9a7699e3 100644
--- a/drivers/usb/host/ohci-sa1111.c
+++ b/drivers/usb/host/ohci-sa1111.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
@@ -42,7 +43,7 @@
 #if 0
 static void dump_hci_status(struct usb_hcd *hcd, const char *label)
 {
-	unsigned long status = sa1111_readl(hcd->regs + USB_STATUS);
+	unsigned long status = readl_relaxed(hcd->regs + USB_STATUS);
 
 	printk(KERN_DEBUG "%s USB_STATUS = { %s%s%s%s%s}\n", label,
 	     ((status & USB_STATUS_IRQHCIRMTWKUP) ? "IRQHCIRMTWKUP " : ""),
@@ -134,7 +135,7 @@ static int sa1111_start_hc(struct sa1111_dev *dev)
 	 * Configure the power sense and control lines.  Place the USB
 	 * host controller in reset.
 	 */
-	sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
+	writel_relaxed(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
 		      dev->mapbase + USB_RESET);
 
 	/*
@@ -144,7 +145,7 @@ static int sa1111_start_hc(struct sa1111_dev *dev)
 	ret = sa1111_enable_device(dev);
 	if (ret == 0) {
 		udelay(11);
-		sa1111_writel(usb_rst, dev->mapbase + USB_RESET);
+		writel_relaxed(usb_rst, dev->mapbase + USB_RESET);
 	}
 
 	return ret;
@@ -159,8 +160,8 @@ static void sa1111_stop_hc(struct sa1111_dev *dev)
 	/*
 	 * Put the USB host controller into reset.
 	 */
-	usb_rst = sa1111_readl(dev->mapbase + USB_RESET);
-	sa1111_writel(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
+	usb_rst = readl_relaxed(dev->mapbase + USB_RESET);
+	writel_relaxed(usb_rst | USB_RESET_FORCEIFRESET | USB_RESET_FORCEHCRESET,
 		      dev->mapbase + USB_RESET);
 
 	/*
@@ -178,7 +179,7 @@ static void sa1111_stop_hc(struct sa1111_dev *dev)
 static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev)
 {
 	struct usb_hcd *hcd;
-	int ret;
+	int ret, irq;
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -196,6 +197,12 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev)
 	hcd->rsrc_start = dev->res.start;
 	hcd->rsrc_len = resource_size(&dev->res);
 
+	irq = sa1111_get_irq(dev, 1);
+	if (irq <= 0) {
+		ret = irq ? : -ENXIO;
+		goto err1;
+	}
+
 	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len, hcd_name)) {
 		dev_dbg(&dev->dev, "request_mem_region failed\n");
 		ret = -EBUSY;
@@ -208,7 +215,7 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev)
 	if (ret)
 		goto err2;
 
-	ret = usb_add_hcd(hcd, dev->irq[1], 0);
+	ret = usb_add_hcd(hcd, irq, 0);
 	if (ret == 0) {
 		device_wakeup_enable(hcd->self.controller);
 		return ret;
@@ -241,8 +248,9 @@ static int ohci_hcd_sa1111_remove(struct sa1111_dev *dev)
 	return 0;
 }
 
-static void ohci_hcd_sa1111_shutdown(struct sa1111_dev *dev)
+static void ohci_hcd_sa1111_shutdown(struct device *_dev)
 {
+	struct sa1111_dev *dev = to_sa1111_device(_dev);
 	struct usb_hcd *hcd = sa1111_get_drvdata(dev);
 
 	if (test_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags)) {
@@ -255,9 +263,9 @@ static struct sa1111_driver ohci_hcd_sa1111_driver = {
 	.drv = {
 		.name	= "sa1111-ohci",
 		.owner	= THIS_MODULE,
+		.shutdown = ohci_hcd_sa1111_shutdown,
 	},
 	.devid		= SA1111_DEVID_USB,
 	.probe		= ohci_hcd_sa1111_probe,
 	.remove		= ohci_hcd_sa1111_remove,
-	.shutdown	= ohci_hcd_sa1111_shutdown,
 };
diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index d4e0f7cd96fa..c9233cddf9a2 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 56478ed2f932..69fa04697793 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * OHCI HCD (Host Controller Driver) for USB.
 *
@@ -5,10 +6,6 @@
 * Deepak Sikri<deepak.sikri@st.com>
 *
 * Based on various ohci-*.c drivers
-*
-* This file is licensed under the terms of the GNU General Public
-* License version 2. This program is licensed "as is" without any
-* warranty of any kind, whether express or implied.
 */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ohci-st.c b/drivers/usb/host/ohci-st.c
index 02816a1515a1..992807c9850a 100644
--- a/drivers/usb/host/ohci-st.c
+++ b/drivers/usb/host/ohci-st.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ST OHCI driver
  *
@@ -6,10 +7,6 @@
  * Author: Peter Griffin <peter.griffin@linaro.org>
  *
  * Derived from ohci-platform.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/host/ohci-tilegx.c b/drivers/usb/host/ohci-tilegx.c
index e1b208da460a..d21ca3ce9a30 100644
--- a/drivers/usb/host/ohci-tilegx.c
+++ b/drivers/usb/host/ohci-tilegx.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2012 Tilera Corporation. All Rights Reserved.
- *
- *   This program is free software; you can redistribute it and/or
- *   modify it under the terms of the GNU General Public License
- *   as published by the Free Software Foundation, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
  */
 
 /*
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 16d081a093bb..a631dbb369d7 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OHCI HCD(Host Controller Driver) for USB.
  *
@@ -18,10 +19,6 @@
  * Written from sparse documentation from Toshiba and Sharp's driver
  * for the 2.4 kernel,
  *	usb-ohci-tc6393.c(C) Copyright 2004 Lineo Solutions, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 /*#include <linux/fs.h>
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index 12742d002d2d..508a803139dd 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * OHCI HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index ed20fb34c897..0bf7759aae78 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2008 Rodolfo Giometti <giometti@linux.it>
  * Copyright (c) 2008 Eurotech S.p.A. <info@eurtech.it>
  *
  * This code is *strongly* based on EHCI-HCD code by David Brownell since
  * the chip is a quasi-EHCI compatible.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
@@ -3040,7 +3027,7 @@ idle_timeout:
 			qh_put(qh);
 			break;
 		}
-		/* else FALL THROUGH */
+		/* fall through */
 	default:
 nogood:
 		/* caller was supposed to have unlinked any requests;
diff --git a/drivers/usb/host/oxu210hp.h b/drivers/usb/host/oxu210hp.h
index 1c216ad9aad2..437044147862 100644
--- a/drivers/usb/host/oxu210hp.h
+++ b/drivers/usb/host/oxu210hp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Host interface registers
  */
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 658d9d1f9ea3..161536717025 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains code to reset and initialize USB host controllers.
  * Some of it includes work-arounds for PCI hardware and BIOS quirks.
@@ -447,7 +448,7 @@ static int usb_asmedia_wait_write(struct pci_dev *pdev)
 		if ((value & ASMT_CONTROL_WRITE_BIT) == 0)
 			return 0;
 
-		usleep_range(40, 60);
+		udelay(50);
 	}
 
 	dev_warn(&pdev->dev, "%s: check_write_ready timeout", __func__);
@@ -841,7 +842,7 @@ static void quirk_usb_disable_ehci(struct pci_dev *pdev)
 			ehci_bios_handoff(pdev, op_reg_base, cap, offset);
 			break;
 		case 0: /* Illegal reserved cap, set cap=0 so we exit */
-			cap = 0; /* then fallthrough... */
+			cap = 0; /* fall through */
 		default:
 			dev_warn(&pdev->dev,
 				 "EHCI: unrecognized capability %02x\n",
@@ -1022,7 +1023,7 @@ EXPORT_SYMBOL_GPL(usb_disable_xhci_ports);
  *
  * Takes care of the handoff between the Pre-OS (i.e. BIOS) and the OS.
  * It signals to the BIOS that the OS wants control of the host controller,
- * and then waits 5 seconds for the BIOS to hand over control.
+ * and then waits 1 second for the BIOS to hand over control.
  * If we timeout, assume the BIOS is broken and take control anyway.
  */
 static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
@@ -1069,9 +1070,9 @@ static void quirk_usb_handoff_xhci(struct pci_dev *pdev)
 	if (val & XHCI_HC_BIOS_OWNED) {
 		writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset);
 
-		/* Wait for 5 seconds with 10 microsecond polling interval */
+		/* Wait for 1 second with 10 microsecond polling interval */
 		timeout = handshake(base + ext_cap_offset, XHCI_HC_BIOS_OWNED,
-				0, 5000, 10);
+				0, 1000000, 10);
 
 		/* Assume a buggy BIOS and take HC ownership anyway */
 		if (timeout) {
@@ -1100,7 +1101,7 @@ hc_init:
 	 * operational or runtime registers.  Wait 5 seconds and no more.
 	 */
 	timeout = handshake(op_reg_base + XHCI_STS_OFFSET, XHCI_STS_CNR, 0,
-			5000, 10);
+			5000000, 10);
 	/* Assume a buggy HC and start HC initialization anyway */
 	if (timeout) {
 		val = readl(op_reg_base + XHCI_STS_OFFSET);
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index 5582cbafecd4..b68dcb5dd0fd 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_PCI_QUIRKS_H
 #define __LINUX_USB_PCI_QUIRKS_H
 
diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c
index 5e5fc9d7d533..f3d9ba420a97 100644
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R8A66597 HCD (Host Controller Driver)
  *
@@ -7,20 +8,6 @@
  * Portions Copyright (C) 1999 Roman Weissgaerber
  *
  * Author : Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #include <linux/module.h>
@@ -1273,7 +1260,7 @@ static void set_td_timer(struct r8a66597 *r8a66597, struct r8a66597_td *td)
 			break;
 		}
 
-		mod_timer(&r8a66597->td_timer[td->pipenum],
+		mod_timer(&r8a66597->timers[td->pipenum].td,
 			  jiffies + msecs_to_jiffies(time));
 	}
 }
@@ -1733,9 +1720,10 @@ static void r8a66597_root_hub_control(struct r8a66597 *r8a66597, int port)
 	}
 }
 
-static void r8a66597_interval_timer(unsigned long _r8a66597)
+static void r8a66597_interval_timer(struct timer_list *t)
 {
-	struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
+	struct r8a66597_timers *timers = from_timer(timers, t, interval);
+	struct r8a66597 *r8a66597 = timers->r8a66597;
 	unsigned long flags;
 	u16 pipenum;
 	struct r8a66597_td *td;
@@ -1745,7 +1733,7 @@ static void r8a66597_interval_timer(unsigned long _r8a66597)
 	for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
 		if (!(r8a66597->interval_map & (1 << pipenum)))
 			continue;
-		if (timer_pending(&r8a66597->interval_timer[pipenum]))
+		if (timer_pending(&r8a66597->timers[pipenum].interval))
 			continue;
 
 		td = r8a66597_get_td(r8a66597, pipenum);
@@ -1756,9 +1744,10 @@ static void r8a66597_interval_timer(unsigned long _r8a66597)
 	spin_unlock_irqrestore(&r8a66597->lock, flags);
 }
 
-static void r8a66597_td_timer(unsigned long _r8a66597)
+static void r8a66597_td_timer(struct timer_list *t)
 {
-	struct r8a66597 *r8a66597 = (struct r8a66597 *)_r8a66597;
+	struct r8a66597_timers *timers = from_timer(timers, t, td);
+	struct r8a66597 *r8a66597 = timers->r8a66597;
 	unsigned long flags;
 	u16 pipenum;
 	struct r8a66597_td *td, *new_td = NULL;
@@ -1768,7 +1757,7 @@ static void r8a66597_td_timer(unsigned long _r8a66597)
 	for (pipenum = 0; pipenum < R8A66597_MAX_NUM_PIPE; pipenum++) {
 		if (!(r8a66597->timeout_map & (1 << pipenum)))
 			continue;
-		if (timer_pending(&r8a66597->td_timer[pipenum]))
+		if (timer_pending(&r8a66597->timers[pipenum].td))
 			continue;
 
 		td = r8a66597_get_td(r8a66597, pipenum);
@@ -1942,7 +1931,7 @@ static int r8a66597_urb_enqueue(struct usb_hcd *hcd,
 	if (request) {
 		if (td->pipe->info.timer_interval) {
 			r8a66597->interval_map |= 1 << td->pipenum;
-			mod_timer(&r8a66597->interval_timer[td->pipenum],
+			mod_timer(&r8a66597->timers[td->pipenum].interval,
 				  jiffies + msecs_to_jiffies(
 					td->pipe->info.timer_interval));
 		} else {
@@ -2495,11 +2484,10 @@ static int r8a66597_probe(struct platform_device *pdev)
 
 	for (i = 0; i < R8A66597_MAX_NUM_PIPE; i++) {
 		INIT_LIST_HEAD(&r8a66597->pipe_queue[i]);
-		setup_timer(&r8a66597->td_timer[i], r8a66597_td_timer,
-			    (unsigned long)r8a66597);
-		setup_timer(&r8a66597->interval_timer[i],
-				r8a66597_interval_timer,
-				(unsigned long)r8a66597);
+		r8a66597->timers[i].r8a66597 = r8a66597;
+		timer_setup(&r8a66597->timers[i].td, r8a66597_td_timer, 0);
+		timer_setup(&r8a66597->timers[i].interval,
+			    r8a66597_interval_timer, 0);
 	}
 	INIT_LIST_HEAD(&r8a66597->child_device);
 
diff --git a/drivers/usb/host/r8a66597.h b/drivers/usb/host/r8a66597.h
index 672cea307abb..51973a923526 100644
--- a/drivers/usb/host/r8a66597.h
+++ b/drivers/usb/host/r8a66597.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R8A66597 HCD (Host Controller Driver)
  *
@@ -7,20 +8,6 @@
  * Portions Copyright (C) 1999 Roman Weissgaerber
  *
  * Author : Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 
 #ifndef __R8A66597_H__
@@ -107,6 +94,14 @@ struct r8a66597_root_hub {
 	struct r8a66597_device	*dev;
 };
 
+struct r8a66597;
+
+struct r8a66597_timers {
+	struct timer_list td;
+	struct timer_list interval;
+	struct r8a66597 *r8a66597;
+};
+
 struct r8a66597 {
 	spinlock_t lock;
 	void __iomem *reg;
@@ -117,8 +112,7 @@ struct r8a66597 {
 	struct list_head		pipe_queue[R8A66597_MAX_NUM_PIPE];
 
 	struct timer_list rh_timer;
-	struct timer_list td_timer[R8A66597_MAX_NUM_PIPE];
-	struct timer_list interval_timer[R8A66597_MAX_NUM_PIPE];
+	struct r8a66597_timers timers[R8A66597_MAX_NUM_PIPE];
 
 	unsigned short address_map;
 	unsigned short timeout_map;
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 24ad1d6cec25..601fb00603cc 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SL811HS HCD (Host Controller Driver) for USB.
  *
diff --git a/drivers/usb/host/sl811.h b/drivers/usb/host/sl811.h
index 1e23ef49bec1..2abe51a5db44 100644
--- a/drivers/usb/host/sl811.h
+++ b/drivers/usb/host/sl811.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SL811HS register declarations and HCD data structures
  *
diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c
index 88a9bffe93df..72136373ffab 100644
--- a/drivers/usb/host/sl811_cs.c
+++ b/drivers/usb/host/sl811_cs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCMCIA driver for SL811HS (as found in REX-CFU1U)
  * Filename: sl811_cs.c
diff --git a/drivers/usb/host/ssb-hcd.c b/drivers/usb/host/ssb-hcd.c
index 62b6b7804c66..016987764afb 100644
--- a/drivers/usb/host/ssb-hcd.c
+++ b/drivers/usb/host/ssb-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Sonics Silicon Backplane
  * Broadcom USB-core driver  (SSB bus glue)
@@ -15,8 +16,6 @@
  *
  * Derived from the USBcore related parts of Broadcom-SB
  * Copyright 2005-2011 Broadcom Corporation
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 #include <linux/ssb/ssb.h>
 #include <linux/delay.h>
diff --git a/drivers/usb/host/u132-hcd.c b/drivers/usb/host/u132-hcd.c
index c38855aed62c..032b8652910a 100644
--- a/drivers/usb/host/u132-hcd.c
+++ b/drivers/usb/host/u132-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * Host Controller Driver for the Elan Digital Systems U132 adapter
 *
@@ -7,11 +8,6 @@
 * Author and Maintainer - Tony Olech - Elan Digital Systems
 * tony.olech@elandigitalsystems.com
 *
-* This program is free software;you can redistribute it and/or
-* modify it under the terms of the GNU General Public License as
-* published by the Free Software Foundation, version 2.
-*
-*
 * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
 * based on various USB host drivers in the 2.6.15 linux kernel
 * with constant reference to the 3rd Edition of Linux Device Drivers
diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index 9c6635d43db0..c4e67c4b51f6 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UHCI-specific debugging code. Invaluable when something
  * goes wrong, but don't get in my face.
diff --git a/drivers/usb/host/uhci-grlib.c b/drivers/usb/host/uhci-grlib.c
index 0342991c9507..2103b1ed0f8f 100644
--- a/drivers/usb/host/uhci-grlib.c
+++ b/drivers/usb/host/uhci-grlib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UHCI HCD (Host Controller Driver) for GRLIB GRUSBHC
  *
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index c3267a78c94e..babeefd84ffd 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Universal Host Controller Interface driver for USB.
  *
diff --git a/drivers/usb/host/uhci-hcd.h b/drivers/usb/host/uhci-hcd.h
index 91b22b2ea3aa..f1cc47292a59 100644
--- a/drivers/usb/host/uhci-hcd.h
+++ b/drivers/usb/host/uhci-hcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_UHCI_HCD_H
 #define __LINUX_UHCI_HCD_H
 
@@ -186,7 +187,7 @@ struct uhci_qh {
  * We need a special accessor for the element pointer because it is
  * subject to asynchronous updates by the controller.
  */
-#define qh_element(qh)		ACCESS_ONCE((qh)->element)
+#define qh_element(qh)		READ_ONCE((qh)->element)
 
 #define LINK_TO_QH(uhci, qh)	(UHCI_PTR_QH((uhci)) | \
 				cpu_to_hc32((uhci), (qh)->dma_handle))
@@ -274,7 +275,7 @@ struct uhci_td {
  * subject to asynchronous updates by the controller.
  */
 #define td_status(uhci, td)		hc32_to_cpu((uhci), \
-						ACCESS_ONCE((td)->status))
+						READ_ONCE((td)->status))
 
 #define LINK_TO_TD(uhci, td)		(cpu_to_hc32((uhci), (td)->dma_handle))
 
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index ece9e37e89fe..47106dd8ca7c 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Universal Host Controller Interface driver for USB.
  *
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index 49effdc0d857..0dd944277c99 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UHCI HCD (Host Controller Driver) PCI Bus Glue.
  *
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 1b4e086c33a0..6cb16d4b2257 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic UHCI HCD (Host Controller Driver) for Platform Devices
  *
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index c17ea1589b83..49d4edc03cc2 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Universal Host Controller Interface driver for USB.
  *
diff --git a/drivers/usb/host/whci/asl.c b/drivers/usb/host/whci/asl.c
index 773249306031..c5ac9efb076a 100644
--- a/drivers/usb/host/whci/asl.c
+++ b/drivers/usb/host/whci/asl.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) asynchronous schedule management.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/gfp.h>
diff --git a/drivers/usb/host/whci/debug.c b/drivers/usb/host/whci/debug.c
index 774b89d28fae..f154e5791bfd 100644
--- a/drivers/usb/host/whci/debug.c
+++ b/drivers/usb/host/whci/debug.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) debug.
  *
  * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/slab.h>
 #include <linux/kernel.h>
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index cf84269c3e6d..8af9dcfea127 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) driver.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
diff --git a/drivers/usb/host/whci/hw.c b/drivers/usb/host/whci/hw.c
index 6afa2e379160..22b3b7f7419d 100644
--- a/drivers/usb/host/whci/hw.c
+++ b/drivers/usb/host/whci/hw.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) hardware access helpers.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/host/whci/init.c b/drivers/usb/host/whci/init.c
index ad8eb575c30a..82416973f773 100644
--- a/drivers/usb/host/whci/init.c
+++ b/drivers/usb/host/whci/init.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) initialization.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/gfp.h>
diff --git a/drivers/usb/host/whci/int.c b/drivers/usb/host/whci/int.c
index 0c086b2790d1..7e4ad1b8f3e3 100644
--- a/drivers/usb/host/whci/int.c
+++ b/drivers/usb/host/whci/int.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) interrupt handling.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/uwb/umc.h>
diff --git a/drivers/usb/host/whci/pzl.c b/drivers/usb/host/whci/pzl.c
index 33c5580b4d25..bb84366f7bd3 100644
--- a/drivers/usb/host/whci/pzl.c
+++ b/drivers/usb/host/whci/pzl.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) periodic schedule management.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/gfp.h>
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index c0e6812426b3..925166a207aa 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) qset management.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h
index c80c7d93bc4a..139476997e7c 100644
--- a/drivers/usb/host/whci/whcd.h
+++ b/drivers/usb/host/whci/whcd.h
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) private header.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
  */
 #ifndef __WHCD_H
 #define __WHCD_H
diff --git a/drivers/usb/host/whci/whci-hc.h b/drivers/usb/host/whci/whci-hc.h
index 4d4cbc0730bf..5a86a57a80cc 100644
--- a/drivers/usb/host/whci/whci-hc.h
+++ b/drivers/usb/host/whci/whci-hc.h
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) data structures.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
  */
 #ifndef _WHCI_WHCI_HC_H
 #define _WHCI_WHCI_HC_H
diff --git a/drivers/usb/host/whci/wusb.c b/drivers/usb/host/whci/wusb.c
index 8d2762682869..8a4d805ff63a 100644
--- a/drivers/usb/host/whci/wusb.c
+++ b/drivers/usb/host/whci/wusb.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless Host Controller (WHC) WUSB operations.
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/uwb/umc.h>
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c
index 2c83b37ae8f2..584d7b9a3683 100644
--- a/drivers/usb/host/xhci-dbg.c
+++ b/drivers/usb/host/xhci-dbg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include "xhci.h"
diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c
new file mode 100644
index 000000000000..4f7895dbcf88
--- /dev/null
+++ b/drivers/usb/host/xhci-debugfs.c
@@ -0,0 +1,523 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * xhci-debugfs.c - xHCI debugfs interface
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author: Lu Baolu <baolu.lu@linux.intel.com>
+ */
+
+#include <linux/slab.h>
+
+#include "xhci.h"
+#include "xhci-debugfs.h"
+
+static const struct debugfs_reg32 xhci_cap_regs[] = {
+	dump_register(CAPLENGTH),
+	dump_register(HCSPARAMS1),
+	dump_register(HCSPARAMS2),
+	dump_register(HCSPARAMS3),
+	dump_register(HCCPARAMS1),
+	dump_register(DOORBELLOFF),
+	dump_register(RUNTIMEOFF),
+	dump_register(HCCPARAMS2),
+};
+
+static const struct debugfs_reg32 xhci_op_regs[] = {
+	dump_register(USBCMD),
+	dump_register(USBSTS),
+	dump_register(PAGESIZE),
+	dump_register(DNCTRL),
+	dump_register(CRCR),
+	dump_register(DCBAAP_LOW),
+	dump_register(DCBAAP_HIGH),
+	dump_register(CONFIG),
+};
+
+static const struct debugfs_reg32 xhci_runtime_regs[] = {
+	dump_register(MFINDEX),
+	dump_register(IR0_IMAN),
+	dump_register(IR0_IMOD),
+	dump_register(IR0_ERSTSZ),
+	dump_register(IR0_ERSTBA_LOW),
+	dump_register(IR0_ERSTBA_HIGH),
+	dump_register(IR0_ERDP_LOW),
+	dump_register(IR0_ERDP_HIGH),
+};
+
+static const struct debugfs_reg32 xhci_extcap_legsup[] = {
+	dump_register(EXTCAP_USBLEGSUP),
+	dump_register(EXTCAP_USBLEGCTLSTS),
+};
+
+static const struct debugfs_reg32 xhci_extcap_protocol[] = {
+	dump_register(EXTCAP_REVISION),
+	dump_register(EXTCAP_NAME),
+	dump_register(EXTCAP_PORTINFO),
+	dump_register(EXTCAP_PORTTYPE),
+	dump_register(EXTCAP_MANTISSA1),
+	dump_register(EXTCAP_MANTISSA2),
+	dump_register(EXTCAP_MANTISSA3),
+	dump_register(EXTCAP_MANTISSA4),
+	dump_register(EXTCAP_MANTISSA5),
+	dump_register(EXTCAP_MANTISSA6),
+};
+
+static const struct debugfs_reg32 xhci_extcap_dbc[] = {
+	dump_register(EXTCAP_DBC_CAPABILITY),
+	dump_register(EXTCAP_DBC_DOORBELL),
+	dump_register(EXTCAP_DBC_ERSTSIZE),
+	dump_register(EXTCAP_DBC_ERST_LOW),
+	dump_register(EXTCAP_DBC_ERST_HIGH),
+	dump_register(EXTCAP_DBC_ERDP_LOW),
+	dump_register(EXTCAP_DBC_ERDP_HIGH),
+	dump_register(EXTCAP_DBC_CONTROL),
+	dump_register(EXTCAP_DBC_STATUS),
+	dump_register(EXTCAP_DBC_PORTSC),
+	dump_register(EXTCAP_DBC_CONT_LOW),
+	dump_register(EXTCAP_DBC_CONT_HIGH),
+	dump_register(EXTCAP_DBC_DEVINFO1),
+	dump_register(EXTCAP_DBC_DEVINFO2),
+};
+
+static struct dentry *xhci_debugfs_root;
+
+static struct xhci_regset *xhci_debugfs_alloc_regset(struct xhci_hcd *xhci)
+{
+	struct xhci_regset	*regset;
+
+	regset = kzalloc(sizeof(*regset), GFP_KERNEL);
+	if (!regset)
+		return NULL;
+
+	/*
+	 * The allocation and free of regset are executed in order.
+	 * We needn't a lock here.
+	 */
+	INIT_LIST_HEAD(&regset->list);
+	list_add_tail(&regset->list, &xhci->regset_list);
+
+	return regset;
+}
+
+static void xhci_debugfs_free_regset(struct xhci_regset *regset)
+{
+	if (!regset)
+		return;
+
+	list_del(&regset->list);
+	kfree(regset);
+}
+
+static void xhci_debugfs_regset(struct xhci_hcd *xhci, u32 base,
+				const struct debugfs_reg32 *regs,
+				size_t nregs, struct dentry *parent,
+				const char *fmt, ...)
+{
+	struct xhci_regset	*rgs;
+	va_list			args;
+	struct debugfs_regset32	*regset;
+	struct usb_hcd		*hcd = xhci_to_hcd(xhci);
+
+	rgs = xhci_debugfs_alloc_regset(xhci);
+	if (!rgs)
+		return;
+
+	va_start(args, fmt);
+	vsnprintf(rgs->name, sizeof(rgs->name), fmt, args);
+	va_end(args);
+
+	regset = &rgs->regset;
+	regset->regs = regs;
+	regset->nregs = nregs;
+	regset->base = hcd->regs + base;
+
+	debugfs_create_regset32((const char *)rgs->name, 0444, parent, regset);
+}
+
+static void xhci_debugfs_extcap_regset(struct xhci_hcd *xhci, int cap_id,
+				       const struct debugfs_reg32 *regs,
+				       size_t n, const char *cap_name)
+{
+	u32			offset;
+	int			index = 0;
+	size_t			psic, nregs = n;
+	void __iomem		*base = &xhci->cap_regs->hc_capbase;
+
+	offset = xhci_find_next_ext_cap(base, 0, cap_id);
+	while (offset) {
+		if (cap_id == XHCI_EXT_CAPS_PROTOCOL) {
+			psic = XHCI_EXT_PORT_PSIC(readl(base + offset + 8));
+			nregs = min(4 + psic, n);
+		}
+
+		xhci_debugfs_regset(xhci, offset, regs, nregs,
+				    xhci->debugfs_root, "%s:%02d",
+				    cap_name, index);
+		offset = xhci_find_next_ext_cap(base, offset, cap_id);
+		index++;
+	}
+}
+
+static int xhci_ring_enqueue_show(struct seq_file *s, void *unused)
+{
+	dma_addr_t		dma;
+	struct xhci_ring	*ring = s->private;
+
+	dma = xhci_trb_virt_to_dma(ring->enq_seg, ring->enqueue);
+	seq_printf(s, "%pad\n", &dma);
+
+	return 0;
+}
+
+static int xhci_ring_dequeue_show(struct seq_file *s, void *unused)
+{
+	dma_addr_t		dma;
+	struct xhci_ring	*ring = s->private;
+
+	dma = xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
+	seq_printf(s, "%pad\n", &dma);
+
+	return 0;
+}
+
+static int xhci_ring_cycle_show(struct seq_file *s, void *unused)
+{
+	struct xhci_ring	*ring = s->private;
+
+	seq_printf(s, "%d\n", ring->cycle_state);
+
+	return 0;
+}
+
+static void xhci_ring_dump_segment(struct seq_file *s,
+				   struct xhci_segment *seg)
+{
+	int			i;
+	dma_addr_t		dma;
+	union xhci_trb		*trb;
+
+	for (i = 0; i < TRBS_PER_SEGMENT; i++) {
+		trb = &seg->trbs[i];
+		dma = seg->dma + i * sizeof(*trb);
+		seq_printf(s, "%pad: %s\n", &dma,
+			   xhci_decode_trb(trb->generic.field[0],
+					   trb->generic.field[1],
+					   trb->generic.field[2],
+					   trb->generic.field[3]));
+	}
+}
+
+static int xhci_ring_trb_show(struct seq_file *s, void *unused)
+{
+	int			i;
+	struct xhci_ring	*ring = s->private;
+	struct xhci_segment	*seg = ring->first_seg;
+
+	for (i = 0; i < ring->num_segs; i++) {
+		xhci_ring_dump_segment(s, seg);
+		seg = seg->next;
+	}
+
+	return 0;
+}
+
+static struct xhci_file_map ring_files[] = {
+	{"enqueue",		xhci_ring_enqueue_show, },
+	{"dequeue",		xhci_ring_dequeue_show, },
+	{"cycle",		xhci_ring_cycle_show, },
+	{"trbs",		xhci_ring_trb_show, },
+};
+
+static int xhci_ring_open(struct inode *inode, struct file *file)
+{
+	int			i;
+	struct xhci_file_map	*f_map;
+	const char		*file_name = file_dentry(file)->d_iname;
+
+	for (i = 0; i < ARRAY_SIZE(ring_files); i++) {
+		f_map = &ring_files[i];
+
+		if (strcmp(f_map->name, file_name) == 0)
+			break;
+	}
+
+	return single_open(file, f_map->show, inode->i_private);
+}
+
+static const struct file_operations xhci_ring_fops = {
+	.open			= xhci_ring_open,
+	.read			= seq_read,
+	.llseek			= seq_lseek,
+	.release		= single_release,
+};
+
+static int xhci_slot_context_show(struct seq_file *s, void *unused)
+{
+	struct xhci_hcd		*xhci;
+	struct xhci_slot_ctx	*slot_ctx;
+	struct xhci_slot_priv	*priv = s->private;
+	struct xhci_virt_device	*dev = priv->dev;
+
+	xhci = hcd_to_xhci(bus_to_hcd(dev->udev->bus));
+	slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx);
+	seq_printf(s, "%pad: %s\n", &dev->out_ctx->dma,
+		   xhci_decode_slot_context(slot_ctx->dev_info,
+					    slot_ctx->dev_info2,
+					    slot_ctx->tt_info,
+					    slot_ctx->dev_state));
+
+	return 0;
+}
+
+static int xhci_endpoint_context_show(struct seq_file *s, void *unused)
+{
+	int			dci;
+	dma_addr_t		dma;
+	struct xhci_hcd		*xhci;
+	struct xhci_ep_ctx	*ep_ctx;
+	struct xhci_slot_priv	*priv = s->private;
+	struct xhci_virt_device	*dev = priv->dev;
+
+	xhci = hcd_to_xhci(bus_to_hcd(dev->udev->bus));
+
+	for (dci = 1; dci < 32; dci++) {
+		ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, dci);
+		dma = dev->out_ctx->dma + dci * CTX_SIZE(xhci->hcc_params);
+		seq_printf(s, "%pad: %s\n", &dma,
+			   xhci_decode_ep_context(ep_ctx->ep_info,
+						  ep_ctx->ep_info2,
+						  ep_ctx->deq,
+						  ep_ctx->tx_info));
+	}
+
+	return 0;
+}
+
+static int xhci_device_name_show(struct seq_file *s, void *unused)
+{
+	struct xhci_slot_priv	*priv = s->private;
+	struct xhci_virt_device	*dev = priv->dev;
+
+	seq_printf(s, "%s\n", dev_name(&dev->udev->dev));
+
+	return 0;
+}
+
+static struct xhci_file_map context_files[] = {
+	{"name",		xhci_device_name_show, },
+	{"slot-context",	xhci_slot_context_show, },
+	{"ep-context",		xhci_endpoint_context_show, },
+};
+
+static int xhci_context_open(struct inode *inode, struct file *file)
+{
+	int			i;
+	struct xhci_file_map	*f_map;
+	const char		*file_name = file_dentry(file)->d_iname;
+
+	for (i = 0; i < ARRAY_SIZE(context_files); i++) {
+		f_map = &context_files[i];
+
+		if (strcmp(f_map->name, file_name) == 0)
+			break;
+	}
+
+	return single_open(file, f_map->show, inode->i_private);
+}
+
+static const struct file_operations xhci_context_fops = {
+	.open			= xhci_context_open,
+	.read			= seq_read,
+	.llseek			= seq_lseek,
+	.release		= single_release,
+};
+
+static void xhci_debugfs_create_files(struct xhci_hcd *xhci,
+				      struct xhci_file_map *files,
+				      size_t nentries, void *data,
+				      struct dentry *parent,
+				      const struct file_operations *fops)
+{
+	int			i;
+
+	for (i = 0; i < nentries; i++)
+		debugfs_create_file(files[i].name, 0444, parent, data, fops);
+}
+
+static struct dentry *xhci_debugfs_create_ring_dir(struct xhci_hcd *xhci,
+						   struct xhci_ring *ring,
+						   const char *name,
+						   struct dentry *parent)
+{
+	struct dentry		*dir;
+
+	dir = debugfs_create_dir(name, parent);
+	xhci_debugfs_create_files(xhci, ring_files, ARRAY_SIZE(ring_files),
+				  ring, dir, &xhci_ring_fops);
+
+	return dir;
+}
+
+static void xhci_debugfs_create_context_files(struct xhci_hcd *xhci,
+					      struct dentry *parent,
+					      int slot_id)
+{
+	struct xhci_virt_device	*dev = xhci->devs[slot_id];
+
+	xhci_debugfs_create_files(xhci, context_files,
+				  ARRAY_SIZE(context_files),
+				  dev->debugfs_private,
+				  parent, &xhci_context_fops);
+}
+
+void xhci_debugfs_create_endpoint(struct xhci_hcd *xhci,
+				  struct xhci_virt_device *dev,
+				  int ep_index)
+{
+	struct xhci_ep_priv	*epriv;
+	struct xhci_slot_priv	*spriv = dev->debugfs_private;
+
+	if (spriv->eps[ep_index])
+		return;
+
+	epriv = kzalloc(sizeof(*epriv), GFP_KERNEL);
+	if (!epriv)
+		return;
+
+	snprintf(epriv->name, sizeof(epriv->name), "ep%02d", ep_index);
+	epriv->root = xhci_debugfs_create_ring_dir(xhci,
+						   dev->eps[ep_index].new_ring,
+						   epriv->name,
+						   spriv->root);
+	spriv->eps[ep_index] = epriv;
+}
+
+void xhci_debugfs_remove_endpoint(struct xhci_hcd *xhci,
+				  struct xhci_virt_device *dev,
+				  int ep_index)
+{
+	struct xhci_ep_priv	*epriv;
+	struct xhci_slot_priv	*spriv = dev->debugfs_private;
+
+	if (!spriv || !spriv->eps[ep_index])
+		return;
+
+	epriv = spriv->eps[ep_index];
+	debugfs_remove_recursive(epriv->root);
+	spriv->eps[ep_index] = NULL;
+	kfree(epriv);
+}
+
+void xhci_debugfs_create_slot(struct xhci_hcd *xhci, int slot_id)
+{
+	struct xhci_slot_priv	*priv;
+	struct xhci_virt_device	*dev = xhci->devs[slot_id];
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return;
+
+	snprintf(priv->name, sizeof(priv->name), "%02d", slot_id);
+	priv->root = debugfs_create_dir(priv->name, xhci->debugfs_slots);
+	priv->dev = dev;
+	dev->debugfs_private = priv;
+
+	xhci_debugfs_create_ring_dir(xhci, dev->eps[0].ring,
+				     "ep00", priv->root);
+
+	xhci_debugfs_create_context_files(xhci, priv->root, slot_id);
+}
+
+void xhci_debugfs_remove_slot(struct xhci_hcd *xhci, int slot_id)
+{
+	int			i;
+	struct xhci_slot_priv	*priv;
+	struct xhci_virt_device	*dev = xhci->devs[slot_id];
+
+	if (!dev || !dev->debugfs_private)
+		return;
+
+	priv = dev->debugfs_private;
+
+	debugfs_remove_recursive(priv->root);
+
+	for (i = 0; i < 31; i++)
+		kfree(priv->eps[i]);
+
+	kfree(priv);
+	dev->debugfs_private = NULL;
+}
+
+void xhci_debugfs_init(struct xhci_hcd *xhci)
+{
+	struct device		*dev = xhci_to_hcd(xhci)->self.controller;
+
+	xhci->debugfs_root = debugfs_create_dir(dev_name(dev),
+						xhci_debugfs_root);
+
+	INIT_LIST_HEAD(&xhci->regset_list);
+
+	xhci_debugfs_regset(xhci,
+			    0,
+			    xhci_cap_regs, ARRAY_SIZE(xhci_cap_regs),
+			    xhci->debugfs_root, "reg-cap");
+
+	xhci_debugfs_regset(xhci,
+			    HC_LENGTH(readl(&xhci->cap_regs->hc_capbase)),
+			    xhci_op_regs, ARRAY_SIZE(xhci_op_regs),
+			    xhci->debugfs_root, "reg-op");
+
+	xhci_debugfs_regset(xhci,
+			    readl(&xhci->cap_regs->run_regs_off) & RTSOFF_MASK,
+			    xhci_runtime_regs, ARRAY_SIZE(xhci_runtime_regs),
+			    xhci->debugfs_root, "reg-runtime");
+
+	xhci_debugfs_extcap_regset(xhci, XHCI_EXT_CAPS_LEGACY,
+				   xhci_extcap_legsup,
+				   ARRAY_SIZE(xhci_extcap_legsup),
+				   "reg-ext-legsup");
+
+	xhci_debugfs_extcap_regset(xhci, XHCI_EXT_CAPS_PROTOCOL,
+				   xhci_extcap_protocol,
+				   ARRAY_SIZE(xhci_extcap_protocol),
+				   "reg-ext-protocol");
+
+	xhci_debugfs_extcap_regset(xhci, XHCI_EXT_CAPS_DEBUG,
+				   xhci_extcap_dbc,
+				   ARRAY_SIZE(xhci_extcap_dbc),
+				   "reg-ext-dbc");
+
+	xhci_debugfs_create_ring_dir(xhci, xhci->cmd_ring,
+				     "command-ring",
+				     xhci->debugfs_root);
+
+	xhci_debugfs_create_ring_dir(xhci, xhci->event_ring,
+				     "event-ring",
+				     xhci->debugfs_root);
+
+	xhci->debugfs_slots = debugfs_create_dir("devices", xhci->debugfs_root);
+}
+
+void xhci_debugfs_exit(struct xhci_hcd *xhci)
+{
+	struct xhci_regset	*rgs, *tmp;
+
+	debugfs_remove_recursive(xhci->debugfs_root);
+	xhci->debugfs_root = NULL;
+	xhci->debugfs_slots = NULL;
+
+	list_for_each_entry_safe(rgs, tmp, &xhci->regset_list, list)
+		xhci_debugfs_free_regset(rgs);
+}
+
+void __init xhci_debugfs_create_root(void)
+{
+	xhci_debugfs_root = debugfs_create_dir("xhci", usb_debug_root);
+}
+
+void __exit xhci_debugfs_remove_root(void)
+{
+	debugfs_remove_recursive(xhci_debugfs_root);
+	xhci_debugfs_root = NULL;
+}
diff --git a/drivers/usb/host/xhci-debugfs.h b/drivers/usb/host/xhci-debugfs.h
new file mode 100644
index 000000000000..ac5bc40f5c3a
--- /dev/null
+++ b/drivers/usb/host/xhci-debugfs.h
@@ -0,0 +1,134 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * xhci-debugfs.h - xHCI debugfs interface
+ *
+ * Copyright (C) 2017 Intel Corporation
+ *
+ * Author: Lu Baolu <baolu.lu@linux.intel.com>
+ */
+
+#ifndef __LINUX_XHCI_DEBUGFS_H
+#define __LINUX_XHCI_DEBUGFS_H
+
+#include <linux/debugfs.h>
+
+#define DEBUGFS_NAMELEN 32
+
+#define REG_CAPLENGTH					0x00
+#define REG_HCSPARAMS1					0x04
+#define REG_HCSPARAMS2					0x08
+#define REG_HCSPARAMS3					0x0c
+#define REG_HCCPARAMS1					0x10
+#define REG_DOORBELLOFF					0x14
+#define REG_RUNTIMEOFF					0x18
+#define REG_HCCPARAMS2					0x1c
+
+#define	REG_USBCMD					0x00
+#define REG_USBSTS					0x04
+#define REG_PAGESIZE					0x08
+#define REG_DNCTRL					0x14
+#define REG_CRCR					0x18
+#define REG_DCBAAP_LOW					0x30
+#define REG_DCBAAP_HIGH					0x34
+#define REG_CONFIG					0x38
+
+#define REG_MFINDEX					0x00
+#define REG_IR0_IMAN					0x20
+#define REG_IR0_IMOD					0x24
+#define REG_IR0_ERSTSZ					0x28
+#define REG_IR0_ERSTBA_LOW				0x30
+#define REG_IR0_ERSTBA_HIGH				0x34
+#define REG_IR0_ERDP_LOW				0x38
+#define REG_IR0_ERDP_HIGH				0x3c
+
+#define REG_EXTCAP_USBLEGSUP				0x00
+#define REG_EXTCAP_USBLEGCTLSTS				0x04
+
+#define REG_EXTCAP_REVISION				0x00
+#define REG_EXTCAP_NAME					0x04
+#define REG_EXTCAP_PORTINFO				0x08
+#define REG_EXTCAP_PORTTYPE				0x0c
+#define REG_EXTCAP_MANTISSA1				0x10
+#define REG_EXTCAP_MANTISSA2				0x14
+#define REG_EXTCAP_MANTISSA3				0x18
+#define REG_EXTCAP_MANTISSA4				0x1c
+#define REG_EXTCAP_MANTISSA5				0x20
+#define REG_EXTCAP_MANTISSA6				0x24
+
+#define REG_EXTCAP_DBC_CAPABILITY			0x00
+#define REG_EXTCAP_DBC_DOORBELL				0x04
+#define REG_EXTCAP_DBC_ERSTSIZE				0x08
+#define REG_EXTCAP_DBC_ERST_LOW				0x10
+#define REG_EXTCAP_DBC_ERST_HIGH			0x14
+#define REG_EXTCAP_DBC_ERDP_LOW				0x18
+#define REG_EXTCAP_DBC_ERDP_HIGH			0x1c
+#define REG_EXTCAP_DBC_CONTROL				0x20
+#define REG_EXTCAP_DBC_STATUS				0x24
+#define REG_EXTCAP_DBC_PORTSC				0x28
+#define REG_EXTCAP_DBC_CONT_LOW				0x30
+#define REG_EXTCAP_DBC_CONT_HIGH			0x34
+#define REG_EXTCAP_DBC_DEVINFO1				0x38
+#define REG_EXTCAP_DBC_DEVINFO2				0x3c
+
+#define dump_register(nm)				\
+{							\
+	.name	= __stringify(nm),			\
+	.offset	= REG_ ##nm,				\
+}
+
+struct xhci_regset {
+	char			name[DEBUGFS_NAMELEN];
+	struct debugfs_regset32	regset;
+	size_t			nregs;
+	struct dentry		*parent;
+	struct list_head	list;
+};
+
+struct xhci_file_map {
+	const char		*name;
+	int			(*show)(struct seq_file *s, void *unused);
+};
+
+struct xhci_ep_priv {
+	char			name[DEBUGFS_NAMELEN];
+	struct dentry		*root;
+};
+
+struct xhci_slot_priv {
+	char			name[DEBUGFS_NAMELEN];
+	struct dentry		*root;
+	struct xhci_ep_priv	*eps[31];
+	struct xhci_virt_device	*dev;
+};
+
+#ifdef CONFIG_DEBUG_FS
+void xhci_debugfs_init(struct xhci_hcd *xhci);
+void xhci_debugfs_exit(struct xhci_hcd *xhci);
+void __init xhci_debugfs_create_root(void);
+void __exit xhci_debugfs_remove_root(void);
+void xhci_debugfs_create_slot(struct xhci_hcd *xhci, int slot_id);
+void xhci_debugfs_remove_slot(struct xhci_hcd *xhci, int slot_id);
+void xhci_debugfs_create_endpoint(struct xhci_hcd *xhci,
+				  struct xhci_virt_device *virt_dev,
+				  int ep_index);
+void xhci_debugfs_remove_endpoint(struct xhci_hcd *xhci,
+				  struct xhci_virt_device *virt_dev,
+				  int ep_index);
+#else
+static inline void xhci_debugfs_init(struct xhci_hcd *xhci) { }
+static inline void xhci_debugfs_exit(struct xhci_hcd *xhci) { }
+static inline void __init xhci_debugfs_create_root(void) { }
+static inline void __exit xhci_debugfs_remove_root(void) { }
+static inline void xhci_debugfs_create_slot(struct xhci_hcd *x, int s) { }
+static inline void xhci_debugfs_remove_slot(struct xhci_hcd *x, int s) { }
+static inline void
+xhci_debugfs_create_endpoint(struct xhci_hcd *xhci,
+			     struct xhci_virt_device *virt_dev,
+			     int ep_index) { }
+static inline void
+xhci_debugfs_remove_endpoint(struct xhci_hcd *xhci,
+			     struct xhci_virt_device *virt_dev,
+			     int ep_index) { }
+#endif /* CONFIG_DEBUG_FS */
+
+#endif /* __LINUX_XHCI_DEBUGFS_H */
diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h
index 28deea584884..bf7316e130d3 100644
--- a/drivers/usb/host/xhci-ext-caps.h
+++ b/drivers/usb/host/xhci-ext-caps.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 /* Up to 16 ms to halt an HC */
 #define XHCI_MAX_HALT_USEC	(16*1000)
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index ad89a6d4111b..2a90229be7a6 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 
@@ -112,7 +100,7 @@ static int xhci_create_usb3_bos_desc(struct xhci_hcd *xhci, char *buf,
 
 	/* If PSI table exists, add the custom speed attributes from it */
 	if (usb3_1 && xhci->usb3_rhub.psi_count) {
-		u32 ssp_cap_base, bm_attrib, psi;
+		u32 ssp_cap_base, bm_attrib, psi, psi_mant, psi_exp;
 		int offset;
 
 		ssp_cap_base = USB_DT_BOS_SIZE + USB_DT_USB_SS_CAP_SIZE;
@@ -139,6 +127,15 @@ static int xhci_create_usb3_bos_desc(struct xhci_hcd *xhci, char *buf,
 		for (i = 0; i < xhci->usb3_rhub.psi_count; i++) {
 			psi = xhci->usb3_rhub.psi[i];
 			psi &= ~USB_SSP_SUBLINK_SPEED_RSVD;
+			psi_exp = XHCI_EXT_PORT_PSIE(psi);
+			psi_mant = XHCI_EXT_PORT_PSIM(psi);
+
+			/* Shift to Gbps and set SSP Link BIT(14) if 10Gpbs */
+			for (; psi_exp < 3; psi_exp++)
+				psi_mant /= 1000;
+			if (psi_mant >= 10)
+				psi |= BIT(14);
+
 			if ((psi & PLT_MASK) == PLT_SYM) {
 			/* Symmetric, create SSA RX and TX from one PSI entry */
 				put_unaligned_le32(psi, &buf[offset]);
@@ -411,14 +408,25 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 						     GFP_NOWAIT);
 			if (!command) {
 				spin_unlock_irqrestore(&xhci->lock, flags);
-				xhci_free_command(xhci, cmd);
-				return -ENOMEM;
+				ret = -ENOMEM;
+				goto cmd_cleanup;
+			}
+
+			ret = xhci_queue_stop_endpoint(xhci, command, slot_id,
+						       i, suspend);
+			if (ret) {
+				spin_unlock_irqrestore(&xhci->lock, flags);
+				xhci_free_command(xhci, command);
+				goto cmd_cleanup;
 			}
-			xhci_queue_stop_endpoint(xhci, command, slot_id, i,
-						 suspend);
 		}
 	}
-	xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+	ret = xhci_queue_stop_endpoint(xhci, cmd, slot_id, 0, suspend);
+	if (ret) {
+		spin_unlock_irqrestore(&xhci->lock, flags);
+		goto cmd_cleanup;
+	}
+
 	xhci_ring_cmd_db(xhci);
 	spin_unlock_irqrestore(&xhci->lock, flags);
 
@@ -430,6 +438,8 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 		xhci_warn(xhci, "Timeout while waiting for stop endpoint command\n");
 		ret = -ETIME;
 	}
+
+cmd_cleanup:
 	xhci_free_command(xhci, cmd);
 	return ret;
 }
@@ -612,7 +622,10 @@ static int xhci_enter_test_mode(struct xhci_hcd *xhci,
 	xhci_dbg(xhci, "Disable all slots\n");
 	spin_unlock_irqrestore(&xhci->lock, *flags);
 	for (i = 1; i <= HCS_MAX_SLOTS(xhci->hcs_params1); i++) {
-		retval = xhci_disable_slot(xhci, NULL, i);
+		if (!xhci->devs[i])
+			continue;
+
+		retval = xhci_disable_slot(xhci, i);
 		if (retval)
 			xhci_err(xhci, "Failed to disable slot %d, %d. Enter test mode anyway\n",
 				 i, retval);
@@ -1352,6 +1365,7 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			break;
 		case USB_PORT_FEAT_C_SUSPEND:
 			bus_state->port_c_suspend &= ~(1 << wIndex);
+			/* fall through */
 		case USB_PORT_FEAT_C_RESET:
 		case USB_PORT_FEAT_C_BH_PORT_RESET:
 		case USB_PORT_FEAT_C_CONNECTION:
@@ -1506,9 +1520,6 @@ int xhci_bus_suspend(struct usb_hcd *hcd)
 				t2 |= PORT_WKOC_E | PORT_WKCONN_E;
 				t2 &= ~PORT_WKDISC_E;
 			}
-			if ((xhci->quirks & XHCI_U2_DISABLE_WAKE) &&
-			    (hcd->speed < HCD_USB3))
-				t2 &= ~PORT_WAKE_BITS;
 		} else
 			t2 &= ~PORT_WAKE_BITS;
 
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 2a82c927ded2..e1fba4688509 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/usb.h>
@@ -28,6 +16,7 @@
 
 #include "xhci.h"
 #include "xhci-trace.h"
+#include "xhci-debugfs.h"
 
 /*
  * Allocates a generic ring segment from the ring pool, sets the dma address,
@@ -465,8 +454,6 @@ int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring,
 	return 0;
 }
 
-#define CTX_SIZE(_hcc) (HCC_64BYTE_CONTEXT(_hcc) ? 64 : 32)
-
 static struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
 						    int type, gfp_t flags)
 {
@@ -801,8 +788,8 @@ void xhci_free_stream_info(struct xhci_hcd *xhci,
 static void xhci_init_endpoint_timer(struct xhci_hcd *xhci,
 		struct xhci_virt_ep *ep)
 {
-	setup_timer(&ep->stop_cmd_timer, xhci_stop_endpoint_command_watchdog,
-		    (unsigned long)ep);
+	timer_setup(&ep->stop_cmd_timer, xhci_stop_endpoint_command_watchdog,
+		    0);
 	ep->xhci = xhci;
 }
 
@@ -961,6 +948,7 @@ void xhci_free_virt_devices_depth_first(struct xhci_hcd *xhci, int slot_id)
 		}
 	}
 	/* we are now at a leaf device */
+	xhci_debugfs_remove_slot(xhci, slot_id);
 	xhci_free_virt_device(xhci, slot_id);
 }
 
@@ -1311,6 +1299,7 @@ static unsigned int xhci_get_endpoint_interval(struct usb_device *udev,
 		 * since it uses the same rules as low speed interrupt
 		 * endpoints.
 		 */
+		/* fall through */
 
 	case USB_SPEED_LOW:
 		if (usb_endpoint_xfer_int(&ep->desc) ||
@@ -1496,7 +1485,6 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 	ep_ctx->tx_info = cpu_to_le32(EP_MAX_ESIT_PAYLOAD_LO(max_esit_payload) |
 				      EP_AVG_TRB_LENGTH(avg_trb_len));
 
-	/* FIXME Debug endpoint context */
 	return 0;
 }
 
diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 6e7ddf6cafae..eea7360a18fc 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015 MediaTek Inc.
  * Author:
  *  Zhigang.Wei <zhigang.wei@mediatek.com>
  *  Chunfeng.Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/kernel.h>
@@ -287,12 +278,13 @@ static bool need_bw_sch(struct usb_host_endpoint *ep,
 
 int xhci_mtk_sch_init(struct xhci_hcd_mtk *mtk)
 {
+	struct xhci_hcd *xhci = hcd_to_xhci(mtk->hcd);
 	struct mu3h_sch_bw_info *sch_array;
 	int num_usb_bus;
 	int i;
 
 	/* ss IN and OUT are separated */
-	num_usb_bus = mtk->num_u3_ports * 2 + mtk->num_u2_ports;
+	num_usb_bus = xhci->num_usb3_ports * 2 + xhci->num_usb2_ports;
 
 	sch_array = kcalloc(num_usb_bus, sizeof(*sch_array), GFP_KERNEL);
 	if (sch_array == NULL)
diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c
index 8fb60657ed4f..b62a1d23244b 100644
--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MediaTek xHCI Host Controller Driver
  *
  * Copyright (c) 2015 MediaTek Inc.
  * Author:
  *  Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/clk.h>
@@ -43,6 +34,7 @@
 
 /* ip_pw_sts1 register */
 #define STS1_IP_SLEEP_STS	BIT(30)
+#define STS1_U3_MAC_RST	BIT(16)
 #define STS1_XHCI_RST		BIT(11)
 #define STS1_SYS125_RST	BIT(10)
 #define STS1_REF_RST		BIT(8)
@@ -91,6 +83,7 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
 {
 	struct mu3c_ippc_regs __iomem *ippc = mtk->ippc_regs;
 	u32 value, check_val;
+	int u3_ports_disabed = 0;
 	int ret;
 	int i;
 
@@ -102,8 +95,13 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
 	value &= ~CTRL1_IP_HOST_PDN;
 	writel(value, &ippc->ip_pw_ctr1);
 
-	/* power on and enable all u3 ports */
+	/* power on and enable u3 ports except skipped ones */
 	for (i = 0; i < mtk->num_u3_ports; i++) {
+		if ((0x1 << i) & mtk->u3p_dis_msk) {
+			u3_ports_disabed++;
+			continue;
+		}
+
 		value = readl(&ippc->u3_ctrl_p[i]);
 		value &= ~(CTRL_U3_PORT_PDN | CTRL_U3_PORT_DIS);
 		value |= CTRL_U3_PORT_HOST_SEL;
@@ -125,6 +123,9 @@ static int xhci_mtk_host_enable(struct xhci_hcd_mtk *mtk)
 	check_val = STS1_SYSPLL_STABLE | STS1_REF_RST |
 			STS1_SYS125_RST | STS1_XHCI_RST;
 
+	if (mtk->num_u3_ports > u3_ports_disabed)
+		check_val |= STS1_U3_MAC_RST;
+
 	ret = readl_poll_timeout(&ippc->ip_pw_sts1, value,
 			  (check_val == (value & check_val)), 100, 20000);
 	if (ret) {
@@ -145,8 +146,11 @@ static int xhci_mtk_host_disable(struct xhci_hcd_mtk *mtk)
 	if (!mtk->has_ippc)
 		return 0;
 
-	/* power down all u3 ports */
+	/* power down u3 ports except skipped ones */
 	for (i = 0; i < mtk->num_u3_ports; i++) {
+		if ((0x1 << i) & mtk->u3p_dis_msk)
+			continue;
+
 		value = readl(&ippc->u3_ctrl_p[i]);
 		value |= CTRL_U3_PORT_PDN;
 		writel(value, &ippc->u3_ctrl_p[i]);
@@ -208,6 +212,41 @@ static int xhci_mtk_ssusb_config(struct xhci_hcd_mtk *mtk)
 	return xhci_mtk_host_enable(mtk);
 }
 
+/* ignore the error if the clock does not exist */
+static struct clk *optional_clk_get(struct device *dev, const char *id)
+{
+	struct clk *opt_clk;
+
+	opt_clk = devm_clk_get(dev, id);
+	/* ignore error number except EPROBE_DEFER */
+	if (IS_ERR(opt_clk) && (PTR_ERR(opt_clk) != -EPROBE_DEFER))
+		opt_clk = NULL;
+
+	return opt_clk;
+}
+
+static int xhci_mtk_clks_get(struct xhci_hcd_mtk *mtk)
+{
+	struct device *dev = mtk->dev;
+
+	mtk->sys_clk = devm_clk_get(dev, "sys_ck");
+	if (IS_ERR(mtk->sys_clk)) {
+		dev_err(dev, "fail to get sys_ck\n");
+		return PTR_ERR(mtk->sys_clk);
+	}
+
+	mtk->ref_clk = optional_clk_get(dev, "ref_ck");
+	if (IS_ERR(mtk->ref_clk))
+		return PTR_ERR(mtk->ref_clk);
+
+	mtk->mcu_clk = optional_clk_get(dev, "mcu_ck");
+	if (IS_ERR(mtk->mcu_clk))
+		return PTR_ERR(mtk->mcu_clk);
+
+	mtk->dma_clk = optional_clk_get(dev, "dma_ck");
+	return PTR_ERR_OR_ZERO(mtk->dma_clk);
+}
+
 static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk)
 {
 	int ret;
@@ -224,37 +263,34 @@ static int xhci_mtk_clks_enable(struct xhci_hcd_mtk *mtk)
 		goto sys_clk_err;
 	}
 
-	if (mtk->wakeup_src) {
-		ret = clk_prepare_enable(mtk->wk_deb_p0);
-		if (ret) {
-			dev_err(mtk->dev, "failed to enable wk_deb_p0\n");
-			goto usb_p0_err;
-		}
+	ret = clk_prepare_enable(mtk->mcu_clk);
+	if (ret) {
+		dev_err(mtk->dev, "failed to enable mcu_clk\n");
+		goto mcu_clk_err;
+	}
 
-		ret = clk_prepare_enable(mtk->wk_deb_p1);
-		if (ret) {
-			dev_err(mtk->dev, "failed to enable wk_deb_p1\n");
-			goto usb_p1_err;
-		}
+	ret = clk_prepare_enable(mtk->dma_clk);
+	if (ret) {
+		dev_err(mtk->dev, "failed to enable dma_clk\n");
+		goto dma_clk_err;
 	}
+
 	return 0;
 
-usb_p1_err:
-	clk_disable_unprepare(mtk->wk_deb_p0);
-usb_p0_err:
+dma_clk_err:
+	clk_disable_unprepare(mtk->mcu_clk);
+mcu_clk_err:
 	clk_disable_unprepare(mtk->sys_clk);
 sys_clk_err:
 	clk_disable_unprepare(mtk->ref_clk);
 ref_clk_err:
-	return -EINVAL;
+	return ret;
 }
 
 static void xhci_mtk_clks_disable(struct xhci_hcd_mtk *mtk)
 {
-	if (mtk->wakeup_src) {
-		clk_disable_unprepare(mtk->wk_deb_p1);
-		clk_disable_unprepare(mtk->wk_deb_p0);
-	}
+	clk_disable_unprepare(mtk->dma_clk);
+	clk_disable_unprepare(mtk->mcu_clk);
 	clk_disable_unprepare(mtk->sys_clk);
 	clk_disable_unprepare(mtk->ref_clk);
 }
@@ -358,18 +394,6 @@ static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk,
 	if (!mtk->wakeup_src)
 		return 0;
 
-	mtk->wk_deb_p0 = devm_clk_get(dev, "wakeup_deb_p0");
-	if (IS_ERR(mtk->wk_deb_p0)) {
-		dev_err(dev, "fail to get wakeup_deb_p0\n");
-		return PTR_ERR(mtk->wk_deb_p0);
-	}
-
-	mtk->wk_deb_p1 = devm_clk_get(dev, "wakeup_deb_p1");
-	if (IS_ERR(mtk->wk_deb_p1)) {
-		dev_err(dev, "fail to get wakeup_deb_p1\n");
-		return PTR_ERR(mtk->wk_deb_p1);
-	}
-
 	mtk->pericfg = syscon_regmap_lookup_by_phandle(dn,
 						"mediatek,syscon-wakeup");
 	if (IS_ERR(mtk->pericfg)) {
@@ -492,7 +516,6 @@ static void xhci_mtk_quirks(struct device *dev, struct xhci_hcd *xhci)
 /* called during probe() after chip reset completes */
 static int xhci_mtk_setup(struct usb_hcd *hcd)
 {
-	struct xhci_hcd *xhci = hcd_to_xhci(hcd);
 	struct xhci_hcd_mtk *mtk = hcd_to_mtk(hcd);
 	int ret;
 
@@ -507,8 +530,6 @@ static int xhci_mtk_setup(struct usb_hcd *hcd)
 		return ret;
 
 	if (usb_hcd_is_primary_hcd(hcd)) {
-		mtk->num_u3_ports = xhci->num_usb3_ports;
-		mtk->num_u2_ports = xhci->num_usb2_ports;
 		ret = xhci_mtk_sch_init(mtk);
 		if (ret)
 			return ret;
@@ -552,26 +573,14 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 		return PTR_ERR(mtk->vusb33);
 	}
 
-	mtk->sys_clk = devm_clk_get(dev, "sys_ck");
-	if (IS_ERR(mtk->sys_clk)) {
-		dev_err(dev, "fail to get sys_ck\n");
-		return PTR_ERR(mtk->sys_clk);
-	}
-
-	/*
-	 * reference clock is usually a "fixed-clock", make it optional
-	 * for backward compatibility and ignore the error if it does
-	 * not exist.
-	 */
-	mtk->ref_clk = devm_clk_get(dev, "ref_ck");
-	if (IS_ERR(mtk->ref_clk)) {
-		if (PTR_ERR(mtk->ref_clk) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
-
-		mtk->ref_clk = NULL;
-	}
+	ret = xhci_mtk_clks_get(mtk);
+	if (ret)
+		return ret;
 
 	mtk->lpm_support = of_property_read_bool(node, "usb3-lpm-capable");
+	/* optional property, ignore the error if it does not exist */
+	of_property_read_u32(node, "mediatek,u3p-dis-msk",
+			     &mtk->u3p_dis_msk);
 
 	ret = usb_wakeup_of_property_parse(mtk, node);
 	if (ret)
@@ -606,15 +615,10 @@ static int xhci_mtk_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize dma_mask and coherent_dma_mask to 32-bits */
-	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
 	if (ret)
 		goto disable_clk;
 
-	if (!dev->dma_mask)
-		dev->dma_mask = &dev->coherent_dma_mask;
-	else
-		dma_set_mask(dev, DMA_BIT_MASK(32));
-
 	hcd = usb_create_hcd(driver, dev, dev_name(dev));
 	if (!hcd) {
 		ret = -ENOMEM;
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index 3aa5e1d25064..6b74ce5b7564 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015 MediaTek Inc.
  * Author:
  *  Zhigang.Wei <zhigang.wei@mediatek.com>
  *  Chunfeng.Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef _XHCI_MTK_H_
@@ -121,12 +112,13 @@ struct xhci_hcd_mtk {
 	bool has_ippc;
 	int num_u2_ports;
 	int num_u3_ports;
+	int u3p_dis_msk;
 	struct regulator *vusb33;
 	struct regulator *vbus;
 	struct clk *sys_clk;	/* sys and mac clock */
 	struct clk *ref_clk;
-	struct clk *wk_deb_p0;	/* port0's wakeup debounce clock */
-	struct clk *wk_deb_p1;
+	struct clk *mcu_clk;
+	struct clk *dma_clk;
 	struct regmap *pericfg;
 	struct phy **phys;
 	int num_phys;
diff --git a/drivers/usb/host/xhci-mvebu.c b/drivers/usb/host/xhci-mvebu.c
index 85908a3ecb8f..32e158568788 100644
--- a/drivers/usb/host/xhci-mvebu.c
+++ b/drivers/usb/host/xhci-mvebu.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Marvell
  * Author: Gregory CLEMENT <gregory.clement@free-electrons.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #include <linux/io.h>
diff --git a/drivers/usb/host/xhci-mvebu.h b/drivers/usb/host/xhci-mvebu.h
index 301fc984cae6..09791df2cec0 100644
--- a/drivers/usb/host/xhci-mvebu.h
+++ b/drivers/usb/host/xhci-mvebu.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Marvell
  *
  * Gregory Clement <gregory.clement@free-electrons.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #ifndef __LINUX_XHCI_MVEBU_H
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 8071c8fdd15e..7ef1274ef7f7 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver PCI Bus Glue.
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/pci.h>
@@ -54,11 +42,6 @@
 #define PCI_DEVICE_ID_INTEL_APL_XHCI			0x5aa8
 #define PCI_DEVICE_ID_INTEL_DNV_XHCI			0x19d0
 
-#define PCI_DEVICE_ID_AMD_PROMONTORYA_4			0x43b9
-#define PCI_DEVICE_ID_AMD_PROMONTORYA_3			0x43ba
-#define PCI_DEVICE_ID_AMD_PROMONTORYA_2			0x43bb
-#define PCI_DEVICE_ID_AMD_PROMONTORYA_1			0x43bc
-
 #define PCI_DEVICE_ID_ASMEDIA_1042A_XHCI		0x1142
 
 static const char hcd_name[] = "xhci_hcd";
@@ -142,13 +125,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
 	if (pdev->vendor == PCI_VENDOR_ID_AMD)
 		xhci->quirks |= XHCI_TRUST_TX_LENGTH;
 
-	if ((pdev->vendor == PCI_VENDOR_ID_AMD) &&
-		((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) ||
-		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_3) ||
-		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_2) ||
-		(pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_1)))
-		xhci->quirks |= XHCI_U2_DISABLE_WAKE;
-
 	if (pdev->vendor == PCI_VENDOR_ID_INTEL) {
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 		xhci->quirks |= XHCI_INTEL_HOST;
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 163bafde709f..09f164f8cf8c 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xhci-plat.c - xHCI host controller driver platform Bus Glue.
  *
@@ -5,10 +6,6 @@
  * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
  *
  * A lot of code borrowed from the Linux xHCI driver.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>
@@ -16,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/usb/phy.h>
 #include <linux/slab.h>
@@ -152,7 +150,7 @@ MODULE_DEVICE_TABLE(of, usb_xhci_of_match);
 
 static int xhci_plat_probe(struct platform_device *pdev)
 {
-	const struct of_device_id *match;
+	const struct xhci_plat_priv *priv_match;
 	const struct hc_driver	*driver;
 	struct device		*sysdev;
 	struct xhci_hcd		*xhci;
@@ -178,14 +176,18 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	 * 2. xhci_plat is child of a device from firmware (dwc3-plat)
 	 * 3. xhci_plat is grandchild of a pci device (dwc3-pci)
 	 */
-	sysdev = &pdev->dev;
-	if (sysdev->parent && !sysdev->of_node && sysdev->parent->of_node)
-		sysdev = sysdev->parent;
+	for (sysdev = &pdev->dev; sysdev; sysdev = sysdev->parent) {
+		if (is_of_node(sysdev->fwnode) ||
+			is_acpi_device_node(sysdev->fwnode))
+			break;
 #ifdef CONFIG_PCI
-	else if (sysdev->parent && sysdev->parent->parent &&
-		 sysdev->parent->parent->bus == &pci_bus_type)
-		sysdev = sysdev->parent->parent;
+		else if (sysdev->bus == &pci_bus_type)
+			break;
 #endif
+	}
+
+	if (!sysdev)
+		sysdev = &pdev->dev;
 
 	/* Try to set 64-bit DMA first */
 	if (WARN_ON(!sysdev->dma_mask))
@@ -238,9 +240,8 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	}
 
 	xhci = hcd_to_xhci(hcd);
-	match = of_match_node(usb_xhci_of_match, pdev->dev.of_node);
-	if (match) {
-		const struct xhci_plat_priv *priv_match = match->data;
+	priv_match = of_device_get_match_data(&pdev->dev);
+	if (priv_match) {
 		struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd);
 
 		/* Just copy data for now */
@@ -259,6 +260,9 @@ static int xhci_plat_probe(struct platform_device *pdev)
 		goto disable_clk;
 	}
 
+	if (device_property_read_bool(sysdev, "usb2-lpm-disable"))
+		xhci->quirks |= XHCI_HW_LPM_DISABLE;
+
 	if (device_property_read_bool(sysdev, "usb3-lpm-capable"))
 		xhci->quirks |= XHCI_LPM_SUPPORT;
 
diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h
index 29b227895b07..ae29f22ff5bd 100644
--- a/drivers/usb/host/xhci-plat.h
+++ b/drivers/usb/host/xhci-plat.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xhci-plat.h - xHCI host controller driver platform Bus Glue.
  *
  * Copyright (C) 2015 Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #ifndef _XHCI_PLAT_H
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index 198bc188ab25..f0b559660007 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver for R-Car SoCs
  *
  * Copyright (C) 2014 Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #include <linux/firmware.h>
diff --git a/drivers/usb/host/xhci-rcar.h b/drivers/usb/host/xhci-rcar.h
index d247951147a1..804b6ab4246f 100644
--- a/drivers/usb/host/xhci-rcar.h
+++ b/drivers/usb/host/xhci-rcar.h
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/host/xhci-rcar.h
  *
  * Copyright (C) 2014 Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #ifndef _XHCI_RCAR_H
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index a9443651ce0f..c239c688076c 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
@@ -171,13 +159,13 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring)
 	if (ring->type == TYPE_EVENT) {
 		if (!last_trb_on_seg(ring->deq_seg, ring->dequeue)) {
 			ring->dequeue++;
-			return;
+			goto out;
 		}
 		if (last_trb_on_ring(ring, ring->deq_seg, ring->dequeue))
 			ring->cycle_state ^= 1;
 		ring->deq_seg = ring->deq_seg->next;
 		ring->dequeue = ring->deq_seg->trbs;
-		return;
+		goto out;
 	}
 
 	/* All other rings have link trbs */
@@ -190,6 +178,7 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring)
 		ring->dequeue = ring->deq_seg->trbs;
 	}
 
+out:
 	trace_xhci_inc_deq(ring);
 
 	return;
@@ -946,15 +935,12 @@ void xhci_hc_died(struct xhci_hcd *xhci)
  * Instead we use a combination of that flag and checking if a new timer is
  * pending.
  */
-void xhci_stop_endpoint_command_watchdog(unsigned long arg)
+void xhci_stop_endpoint_command_watchdog(struct timer_list *t)
 {
-	struct xhci_hcd *xhci;
-	struct xhci_virt_ep *ep;
+	struct xhci_virt_ep *ep = from_timer(ep, t, stop_cmd_timer);
+	struct xhci_hcd *xhci = ep->xhci;
 	unsigned long flags;
 
-	ep = (struct xhci_virt_ep *) arg;
-	xhci = ep->xhci;
-
 	spin_lock_irqsave(&xhci->lock, flags);
 
 	/* bail out if cmd completed but raced with stop ep watchdog timer.*/
@@ -1309,6 +1295,7 @@ static void xhci_complete_del_and_free_cmd(struct xhci_command *cmd, u32 status)
 void xhci_cleanup_command_queue(struct xhci_hcd *xhci)
 {
 	struct xhci_command *cur_cmd, *tmp_cmd;
+	xhci->current_cmd = NULL;
 	list_for_each_entry_safe(cur_cmd, tmp_cmd, &xhci->cmd_list, cmd_list)
 		xhci_complete_del_and_free_cmd(cur_cmd, COMP_COMMAND_ABORTED);
 }
@@ -1679,9 +1666,14 @@ static void handle_port_status(struct xhci_hcd *xhci,
 			bus_state->resume_done[faked_port_index] = jiffies +
 				msecs_to_jiffies(USB_RESUME_TIMEOUT);
 			set_bit(faked_port_index, &bus_state->resuming_ports);
+			/* Do the rest in GetPortStatus after resume time delay.
+			 * Avoid polling roothub status before that so that a
+			 * usb device auto-resume latency around ~40ms.
+			 */
+			set_bit(HCD_FLAG_POLL_RH, &hcd->flags);
 			mod_timer(&hcd->rh_timer,
 				  bus_state->resume_done[faked_port_index]);
-			/* Do the rest in GetPortStatus */
+			bogus_port_status = true;
 		}
 	}
 
@@ -2579,15 +2571,21 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 				(struct xhci_generic_trb *) ep_trb);
 
 		/*
-		 * No-op TRB should not trigger interrupts.
-		 * If ep_trb is a no-op TRB, it means the
-		 * corresponding TD has been cancelled. Just ignore
-		 * the TD.
+		 * No-op TRB could trigger interrupts in a case where
+		 * a URB was killed and a STALL_ERROR happens right
+		 * after the endpoint ring stopped. Reset the halted
+		 * endpoint. Otherwise, the endpoint remains stalled
+		 * indefinitely.
 		 */
 		if (trb_is_noop(ep_trb)) {
-			xhci_dbg(xhci,
-				 "ep_trb is a no-op TRB. Skip it for slot %u ep %u\n",
-				 slot_id, ep_index);
+			if (trb_comp_code == COMP_STALL_ERROR ||
+			    xhci_requires_manual_halt_cleanup(xhci, ep_ctx,
+							      trb_comp_code))
+				xhci_cleanup_halted_endpoint(xhci, slot_id,
+							     ep_index,
+							     ep_ring->stream_id,
+							     td, ep_trb,
+							     EP_HARD_RESET);
 			goto cleanup;
 		}
 
diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c
index 74436f8ca538..2c076ea80522 100644
--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NVIDIA Tegra xHCI host controller driver
  *
  * Copyright (C) 2014 NVIDIA Corporation
  * Copyright (C) 2014 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
  */
 
 #include <linux/clk.h>
@@ -771,7 +768,7 @@ static int tegra_xusb_load_firmware(struct tegra_xusb *tegra)
 	struct device *dev = tegra->dev;
 	const struct firmware *fw;
 	unsigned long timeout;
-	time_t timestamp;
+	time64_t timestamp;
 	struct tm time;
 	u64 address;
 	u32 value;
@@ -877,7 +874,7 @@ static int tegra_xusb_load_firmware(struct tegra_xusb *tegra)
 	}
 
 	timestamp = le32_to_cpu(header->fwimg_created_time);
-	time_to_tm(timestamp, 0, &time);
+	time64_to_tm(timestamp, 0, &time);
 
 	dev_info(dev, "Firmware timestamp: %ld-%02d-%02d %02d:%02d:%02d UTC\n",
 		 time.tm_year + 1900, time.tm_mon + 1, time.tm_mday,
diff --git a/drivers/usb/host/xhci-trace.c b/drivers/usb/host/xhci-trace.c
index 367b630bdb3c..d0070814d1ea 100644
--- a/drivers/usb/host/xhci-trace.c
+++ b/drivers/usb/host/xhci-trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,10 +6,6 @@
  *
  * Author: Xenia Ragiadakou
  * Email : burzalodowa@gmail.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #define CREATE_TRACE_POINTS
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index f20753b99624..a3b57c781db1 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,10 +6,6 @@
  *
  * Author: Xenia Ragiadakou
  * Email : burzalodowa@gmail.com
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #undef TRACE_SYSTEM
@@ -388,6 +385,11 @@ DEFINE_EVENT(xhci_log_slot_ctx, xhci_handle_cmd_set_deq,
 	TP_ARGS(ctx)
 );
 
+DEFINE_EVENT(xhci_log_slot_ctx, xhci_configure_endpoint,
+	TP_PROTO(struct xhci_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
 DECLARE_EVENT_CLASS(xhci_log_ring,
 	TP_PROTO(struct xhci_ring *ring),
 	TP_ARGS(ring),
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index b2ff1ff1a02f..327ba8b8a98b 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xHCI host controller driver
  *
@@ -5,19 +6,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/pci.h>
@@ -32,6 +20,7 @@
 #include "xhci.h"
 #include "xhci-trace.h"
 #include "xhci-mtk.h"
+#include "xhci-debugfs.h"
 
 #define DRIVER_AUTHOR "Sarah Sharp"
 #define DRIVER_DESC "'eXtensible' Host Controller (xHC) Driver"
@@ -632,6 +621,9 @@ int xhci_run(struct usb_hcd *hcd)
 	}
 	xhci_dbg_trace(xhci, trace_xhci_dbg_init,
 			"Finished xhci_run for USB2 roothub");
+
+	xhci_debugfs_init(xhci);
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(xhci_run);
@@ -660,6 +652,8 @@ static void xhci_stop(struct usb_hcd *hcd)
 		return;
 	}
 
+	xhci_debugfs_exit(xhci);
+
 	spin_lock_irq(&xhci->lock);
 	xhci->xhc_state |= XHCI_STATE_HALTED;
 	xhci->cmd_ring_state = CMD_RING_STATE_STOPPED;
@@ -1600,6 +1594,8 @@ static int xhci_drop_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 	ctrl_ctx->add_flags &= cpu_to_le32(~drop_flag);
 	new_add_flags = le32_to_cpu(ctrl_ctx->add_flags);
 
+	xhci_debugfs_remove_endpoint(xhci, xhci->devs[udev->slot_id], ep_index);
+
 	xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep);
 
 	if (xhci->quirks & XHCI_MTK_HOST)
@@ -1703,7 +1699,8 @@ static int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 	if (xhci->quirks & XHCI_MTK_HOST) {
 		ret = xhci_mtk_add_ep_quirk(hcd, udev, ep);
 		if (ret < 0) {
-			xhci_free_endpoint_ring(xhci, virt_dev, ep_index);
+			xhci_ring_free(xhci, virt_dev->eps[ep_index].new_ring);
+			virt_dev->eps[ep_index].new_ring = NULL;
 			return ret;
 		}
 	}
@@ -1722,6 +1719,8 @@ static int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 	/* Store the usb_device pointer for later use */
 	ep->hcpriv = udev;
 
+	xhci_debugfs_create_endpoint(xhci, virt_dev, ep_index);
+
 	xhci_dbg(xhci, "add ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x\n",
 			(unsigned int) ep->desc.bEndpointAddress,
 			udev->slot_id,
@@ -2554,6 +2553,7 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
 	unsigned long flags;
 	struct xhci_input_control_ctx *ctrl_ctx;
 	struct xhci_virt_device *virt_dev;
+	struct xhci_slot_ctx *slot_ctx;
 
 	if (!command)
 		return -EINVAL;
@@ -2592,6 +2592,9 @@ static int xhci_configure_endpoint(struct xhci_hcd *xhci,
 		return -ENOMEM;
 	}
 
+	slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx);
+	trace_xhci_configure_endpoint(slot_ctx);
+
 	if (!ctx_change)
 		ret = xhci_queue_configure_endpoint(xhci, command,
 				command->in_ctx->dma,
@@ -2772,6 +2775,7 @@ static void xhci_reset_bandwidth(struct usb_hcd *hcd, struct usb_device *udev)
 	/* Free any rings allocated for added endpoints */
 	for (i = 0; i < 31; i++) {
 		if (virt_dev->eps[i].new_ring) {
+			xhci_debugfs_remove_endpoint(xhci, virt_dev, i);
 			xhci_ring_free(xhci, virt_dev->eps[i].new_ring);
 			virt_dev->eps[i].new_ring = NULL;
 		}
@@ -3487,6 +3491,7 @@ static int xhci_discover_or_reset_device(struct usb_hcd *hcd,
 		}
 
 		if (ep->ring) {
+			xhci_debugfs_remove_endpoint(xhci, virt_dev, i);
 			xhci_free_endpoint_ring(xhci, virt_dev, i);
 			last_freed_endpoint = i;
 		}
@@ -3519,11 +3524,8 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	struct xhci_virt_device *virt_dev;
 	struct xhci_slot_ctx *slot_ctx;
 	int i, ret;
-	struct xhci_command *command;
 
-	command = xhci_alloc_command(xhci, false, false, GFP_KERNEL);
-	if (!command)
-		return;
+	xhci_debugfs_remove_slot(xhci, udev->slot_id);
 
 #ifndef CONFIG_USB_DEFAULT_PERSIST
 	/*
@@ -3539,10 +3541,8 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	/* If the host is halted due to driver unload, we still need to free the
 	 * device.
 	 */
-	if (ret <= 0 && ret != -ENODEV) {
-		kfree(command);
+	if (ret <= 0 && ret != -ENODEV)
 		return;
-	}
 
 	virt_dev = xhci->devs[udev->slot_id];
 	slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx);
@@ -3554,26 +3554,19 @@ static void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 		del_timer_sync(&virt_dev->eps[i].stop_cmd_timer);
 	}
 
-	xhci_disable_slot(xhci, command, udev->slot_id);
-	/*
-	 * Event command completion handler will free any data structures
-	 * associated with the slot.  XXX Can free sleep?
-	 */
+	ret = xhci_disable_slot(xhci, udev->slot_id);
+	if (ret)
+		xhci_free_virt_device(xhci, udev->slot_id);
 }
 
-int xhci_disable_slot(struct xhci_hcd *xhci, struct xhci_command *command,
-			u32 slot_id)
+int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id)
 {
+	struct xhci_command *command;
 	unsigned long flags;
 	u32 state;
 	int ret = 0;
-	struct xhci_virt_device *virt_dev;
 
-	virt_dev = xhci->devs[slot_id];
-	if (!virt_dev)
-		return -EINVAL;
-	if (!command)
-		command = xhci_alloc_command(xhci, false, false, GFP_KERNEL);
+	command = xhci_alloc_command(xhci, false, false, GFP_KERNEL);
 	if (!command)
 		return -ENOMEM;
 
@@ -3582,17 +3575,16 @@ int xhci_disable_slot(struct xhci_hcd *xhci, struct xhci_command *command,
 	state = readl(&xhci->op_regs->status);
 	if (state == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) ||
 			(xhci->xhc_state & XHCI_STATE_HALTED)) {
-		xhci_free_virt_device(xhci, slot_id);
 		spin_unlock_irqrestore(&xhci->lock, flags);
 		kfree(command);
-		return ret;
+		return -ENODEV;
 	}
 
 	ret = xhci_queue_slot_control(xhci, command, TRB_DISABLE_SLOT,
 				slot_id);
 	if (ret) {
 		spin_unlock_irqrestore(&xhci->lock, flags);
-		xhci_dbg(xhci, "FIXME: allocate a command ring segment\n");
+		kfree(command);
 		return ret;
 	}
 	xhci_ring_cmd_db(xhci);
@@ -3640,13 +3632,10 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 	if (!command)
 		return 0;
 
-	/* xhci->slot_id and xhci->addr_dev are not thread-safe */
-	mutex_lock(&xhci->mutex);
 	spin_lock_irqsave(&xhci->lock, flags);
 	ret = xhci_queue_slot_control(xhci, command, TRB_ENABLE_SLOT, 0);
 	if (ret) {
 		spin_unlock_irqrestore(&xhci->lock, flags);
-		mutex_unlock(&xhci->mutex);
 		xhci_dbg(xhci, "FIXME: allocate a command ring segment\n");
 		xhci_free_command(xhci, command);
 		return 0;
@@ -3656,7 +3645,6 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 
 	wait_for_completion(command->completion);
 	slot_id = command->slot_id;
-	mutex_unlock(&xhci->mutex);
 
 	if (!slot_id || command->status != COMP_SUCCESS) {
 		xhci_err(xhci, "Error while assigning device slot ID\n");
@@ -3667,6 +3655,8 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 		return 0;
 	}
 
+	xhci_free_command(xhci, command);
+
 	if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) {
 		spin_lock_irqsave(&xhci->lock, flags);
 		ret = xhci_reserve_host_control_ep_resources(xhci);
@@ -3693,6 +3683,8 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 
 	udev->slot_id = slot_id;
 
+	xhci_debugfs_create_slot(xhci, slot_id);
+
 #ifndef CONFIG_USB_DEFAULT_PERSIST
 	/*
 	 * If resetting upon resume, we can't put the controller into runtime
@@ -3702,18 +3694,16 @@ int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev)
 		pm_runtime_get_noresume(hcd->self.controller);
 #endif
 
-
-	xhci_free_command(xhci, command);
 	/* Is this a LS or FS device under a HS hub? */
 	/* Hub or peripherial? */
 	return 1;
 
 disable_slot:
-	/* Disable slot, if we can do it without mem alloc */
-	kfree(command->completion);
-	command->completion = NULL;
-	command->status = 0;
-	return xhci_disable_slot(xhci, command, udev->slot_id);
+	ret = xhci_disable_slot(xhci, udev->slot_id);
+	if (ret)
+		xhci_free_virt_device(xhci, udev->slot_id);
+
+	return 0;
 }
 
 /*
@@ -3837,8 +3827,14 @@ static int xhci_setup_device(struct usb_hcd *hcd, struct usb_device *udev,
 		break;
 	case COMP_USB_TRANSACTION_ERROR:
 		dev_warn(&udev->dev, "Device not responding to setup %s.\n", act);
-		ret = -EPROTO;
-		break;
+
+		mutex_unlock(&xhci->mutex);
+		ret = xhci_disable_slot(xhci, udev->slot_id);
+		if (!ret)
+			xhci_alloc_dev(hcd, udev);
+		kfree(command->completion);
+		kfree(command);
+		return -EPROTO;
 	case COMP_INCOMPATIBLE_DEVICE_ERROR:
 		dev_warn(&udev->dev,
 			 "ERROR: Incompatible device for setup %s command\n", act);
@@ -4087,7 +4083,7 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 	xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n",
 			enable ? "enable" : "disable", port_num + 1);
 
-	if (enable) {
+	if (enable && !(xhci->quirks & XHCI_HW_LPM_DISABLE)) {
 		/* Host supports BESL timeout instead of HIRD */
 		if (udev->usb2_hw_lpm_besl_capable) {
 			/* if device doesn't have a preferred BESL value use a
@@ -4286,6 +4282,7 @@ static unsigned long long xhci_calculate_intel_u1_timeout(
 			break;
 		}
 		/* Otherwise the calculation is the same as isoc eps */
+		/* fall through */
 	case USB_ENDPOINT_XFER_ISOC:
 		timeout_ns = xhci_service_interval_to_ns(desc);
 		timeout_ns = DIV_ROUND_UP_ULL(timeout_ns * 105, 100);
@@ -4804,7 +4801,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks)
 		 */
 		hcd->has_tt = 1;
 	} else {
-		if (xhci->sbrn == 0x31) {
+		/* Some 3.1 hosts return sbrn 0x30, can't rely on sbrn alone */
+		if (xhci->sbrn == 0x31 || xhci->usb3_rhub.min_rev >= 1) {
 			xhci_info(xhci, "Host supports USB 3.1 Enhanced SuperSpeed\n");
 			hcd->speed = HCD_USB31;
 			hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
@@ -5003,6 +5001,8 @@ static int __init xhci_hcd_init(void)
 	if (usb_disabled())
 		return -ENODEV;
 
+	xhci_debugfs_create_root();
+
 	return 0;
 }
 
@@ -5010,7 +5010,10 @@ static int __init xhci_hcd_init(void)
  * If an init function is provided, an exit function must also be provided
  * to allow module unload.
  */
-static void __exit xhci_hcd_fini(void) { }
+static void __exit xhci_hcd_fini(void)
+{
+	xhci_debugfs_remove_root();
+}
 
 module_init(xhci_hcd_init);
 module_exit(xhci_hcd_fini);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 2abaa4d6d39d..99a014a920d3 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  * xHCI host controller driver
@@ -6,19 +7,6 @@
  *
  * Author: Sarah Sharp
  * Some code borrowed from the Linux EHCI driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef __LINUX_XHCI_HCD_H
@@ -131,6 +119,8 @@ struct xhci_cap_regs {
 /* Extended Capabilities pointer from PCI base - section 5.3.6 */
 #define HCC_EXT_CAPS(p)		XHCI_HCC_EXT_CAPS(p)
 
+#define CTX_SIZE(_hcc)		(HCC_64BYTE_CONTEXT(_hcc) ? 64 : 32)
+
 /* db_off bitmask - bits 0:1 reserved */
 #define	DBOFF_MASK	(~0x3)
 
@@ -735,6 +725,8 @@ struct xhci_ep_ctx {
 #define EP_MAXPSTREAMS(p)	(((p) << 10) & EP_MAXPSTREAMS_MASK)
 /* Endpoint is set up with a Linear Stream Array (vs. Secondary Stream Array) */
 #define	EP_HAS_LSA		(1 << 15)
+/* hosts with LEC=1 use bits 31:24 as ESIT high bits. */
+#define CTX_TO_MAX_ESIT_PAYLOAD_HI(p)	(((p) >> 24) & 0xff)
 
 /* ep_info2 bitmasks */
 /*
@@ -1005,6 +997,8 @@ struct xhci_virt_device {
 	struct xhci_tt_bw_info		*tt_info;
 	/* The current max exit latency for the enabled USB3 link states. */
 	u16				current_mel;
+	/* Used for the debugfs interfaces. */
+	void				*debugfs_private;
 };
 
 /*
@@ -1681,7 +1675,7 @@ struct xhci_bus_state {
 
 static inline unsigned int hcd_index(struct usb_hcd *hcd)
 {
-	if (hcd->speed == HCD_USB3)
+	if (hcd->speed >= HCD_USB3)
 		return 0;
 	else
 		return 1;
@@ -1826,8 +1820,9 @@ struct xhci_hcd {
 /* For controller with a broken Port Disable implementation */
 #define XHCI_BROKEN_PORT_PED	(1 << 25)
 #define XHCI_LIMIT_ENDPOINT_INTERVAL_7	(1 << 26)
-#define XHCI_U2_DISABLE_WAKE	(1 << 27)
+/* Reserved. It was XHCI_U2_DISABLE_WAKE */
 #define XHCI_ASMEDIA_MODIFY_FLOWCONTROL	(1 << 28)
+#define XHCI_HW_LPM_DISABLE	(1 << 29)
 
 	unsigned int		num_active_eps;
 	unsigned int		limit_active_eps;
@@ -1857,6 +1852,10 @@ struct xhci_hcd {
 /* Compliance Mode Timer Triggered every 2 seconds */
 #define COMP_MODE_RCVRY_MSECS 2000
 
+	struct dentry		*debugfs_root;
+	struct dentry		*debugfs_slots;
+	struct list_head	regset_list;
+
 	/* platform-specific data -- must come last */
 	unsigned long		priv[0] __aligned(sizeof(s64));
 };
@@ -2010,8 +2009,7 @@ int xhci_run(struct usb_hcd *hcd);
 int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks);
 void xhci_init_driver(struct hc_driver *drv,
 		      const struct xhci_driver_overrides *over);
-int xhci_disable_slot(struct xhci_hcd *xhci,
-			struct xhci_command *command, u32 slot_id);
+int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id);
 
 int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup);
 int xhci_resume(struct xhci_hcd *xhci, bool hibernated);
@@ -2066,7 +2064,7 @@ void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
 		struct xhci_dequeue_state *deq_state);
 void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int ep_index,
 		unsigned int stream_id, struct xhci_td *td);
-void xhci_stop_endpoint_command_watchdog(unsigned long arg);
+void xhci_stop_endpoint_command_watchdog(struct timer_list *t);
 void xhci_handle_command_timeout(struct work_struct *work);
 
 void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
@@ -2105,6 +2103,7 @@ struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container
 struct xhci_ring *xhci_triad_to_transfer_ring(struct xhci_hcd *xhci,
 		unsigned int slot_id, unsigned int ep_index,
 		unsigned int stream_id);
+
 static inline struct xhci_ring *xhci_urb_to_transfer_ring(struct xhci_hcd *xhci,
 								struct urb *urb)
 {
@@ -2440,11 +2439,12 @@ static inline const char *xhci_decode_portsc(u32 portsc)
 	static char str[256];
 	int ret;
 
-	ret = sprintf(str, "%s %s %s Link:%s ",
+	ret = sprintf(str, "%s %s %s Link:%s PortSpeed:%d ",
 		      portsc & PORT_POWER	? "Powered" : "Powered-off",
 		      portsc & PORT_CONNECT	? "Connected" : "Not-connected",
 		      portsc & PORT_PE		? "Enabled" : "Disabled",
-		      xhci_portsc_link_state_string(portsc));
+		      xhci_portsc_link_state_string(portsc),
+		      DEV_PORT_SPEED(portsc));
 
 	if (portsc & PORT_OC)
 		ret += sprintf(str + ret, "OverCurrent ");
@@ -2540,8 +2540,8 @@ static inline const char *xhci_decode_ep_context(u32 info, u32 info2, u64 deq,
 	u8 lsa;
 	u8 hid;
 
-	esit = EP_MAX_ESIT_PAYLOAD_HI(info) << 16 |
-		EP_MAX_ESIT_PAYLOAD_LO(tx_info);
+	esit = CTX_TO_MAX_ESIT_PAYLOAD_HI(info) << 16 |
+		CTX_TO_MAX_ESIT_PAYLOAD(tx_info);
 
 	ep_state = info & EP_STATE_MASK;
 	max_pstr = info & EP_MAXPSTREAMS_MASK;
diff --git a/drivers/usb/image/Makefile b/drivers/usb/image/Makefile
index 4148ae306352..8997c81ba86b 100644
--- a/drivers/usb/image/Makefile
+++ b/drivers/usb/image/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB Image drivers
 #
diff --git a/drivers/usb/image/mdc800.c b/drivers/usb/image/mdc800.c
index e92540a21b6b..2388674042a9 100644
--- a/drivers/usb/image/mdc800.c
+++ b/drivers/usb/image/mdc800.c
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * copyright (C) 1999/2000 by Henning Zabel <henning@uni-paderborn.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 
@@ -893,6 +880,7 @@ static ssize_t mdc800_device_write (struct file *file, const char __user *buf, s
 						return -EIO;
 					}
 					mdc800->pic_len=-1;
+					/* fall through */
 
 				case 0x09: /* Download Thumbnail */
 					mdc800->download_left=answersize+64;
diff --git a/drivers/usb/image/microtek.c b/drivers/usb/image/microtek.c
index 0b21ba757bba..9f2f563c82ed 100644
--- a/drivers/usb/image/microtek.c
+++ b/drivers/usb/image/microtek.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Driver for Microtek Scanmaker X6 USB scanner, and possibly others.
  *
  * (C) Copyright 2000 John Fremlin <vii@penguinpowered.com>
diff --git a/drivers/usb/image/microtek.h b/drivers/usb/image/microtek.h
index 7e32ae787136..66685e59241a 100644
--- a/drivers/usb/image/microtek.h
+++ b/drivers/usb/image/microtek.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
  /*
  * Driver for Microtek Scanmaker X6 USB scanner and possibly others.
  * 
diff --git a/drivers/usb/isp1760/Makefile b/drivers/usb/isp1760/Makefile
index 2b741074ad2b..9bb09e8290c4 100644
--- a/drivers/usb/isp1760/Makefile
+++ b/drivers/usb/isp1760/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 isp1760-y := isp1760-core.o isp1760-if.o
 isp1760-$(CONFIG_USB_ISP1760_HCD) += isp1760-hcd.o
 isp1760-$(CONFIG_USB_ISP1761_UDC) += isp1760-udc.o
diff --git a/drivers/usb/isp1760/isp1760-core.c b/drivers/usb/isp1760/isp1760-core.c
index bfa402cf3a27..05d22589b5cc 100644
--- a/drivers/usb/isp1760/isp1760-core.c
+++ b/drivers/usb/isp1760/isp1760-core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the NXP ISP1760 chip
  *
@@ -7,10 +8,6 @@
  * Contacts:
  *	Sebastian Siewior <bigeasy@linutronix.de>
  *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #include <linux/delay.h>
diff --git a/drivers/usb/isp1760/isp1760-core.h b/drivers/usb/isp1760/isp1760-core.h
index c70f8368a794..97cb4d7a3e1c 100644
--- a/drivers/usb/isp1760/isp1760-core.h
+++ b/drivers/usb/isp1760/isp1760-core.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the NXP ISP1760 chip
  *
@@ -7,10 +8,6 @@
  * Contacts:
  *	Sebastian Siewior <bigeasy@linutronix.de>
  *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #ifndef _ISP1760_CORE_H_
diff --git a/drivers/usb/isp1760/isp1760-hcd.c b/drivers/usb/isp1760/isp1760-hcd.c
index 8e59e0c02b8a..42672d6ec525 100644
--- a/drivers/usb/isp1760/isp1760-hcd.c
+++ b/drivers/usb/isp1760/isp1760-hcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the NXP ISP1760 chip
  *
@@ -1258,10 +1259,11 @@ leave:
 #define SLOT_TIMEOUT 300
 #define SLOT_CHECK_PERIOD 200
 static struct timer_list errata2_timer;
+static struct usb_hcd *errata2_timer_hcd;
 
-static void errata2_function(unsigned long data)
+static void errata2_function(struct timer_list *unused)
 {
-	struct usb_hcd *hcd = (struct usb_hcd *) data;
+	struct usb_hcd *hcd = errata2_timer_hcd;
 	struct isp1760_hcd *priv = hcd_to_priv(hcd);
 	int slot;
 	struct ptd ptd;
@@ -1333,7 +1335,8 @@ static int isp1760_run(struct usb_hcd *hcd)
 	if (retval)
 		return retval;
 
-	setup_timer(&errata2_timer, errata2_function, (unsigned long)hcd);
+	errata2_timer_hcd = hcd;
+	timer_setup(&errata2_timer, errata2_function, 0);
 	errata2_timer.expires = jiffies + msecs_to_jiffies(SLOT_CHECK_PERIOD);
 	add_timer(&errata2_timer);
 
diff --git a/drivers/usb/isp1760/isp1760-hcd.h b/drivers/usb/isp1760/isp1760-hcd.h
index 0c1c98d6ea08..f1bb2deb1ccf 100644
--- a/drivers/usb/isp1760/isp1760-hcd.h
+++ b/drivers/usb/isp1760/isp1760-hcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ISP1760_HCD_H_
 #define _ISP1760_HCD_H_
 
diff --git a/drivers/usb/isp1760/isp1760-if.c b/drivers/usb/isp1760/isp1760-if.c
index bc68bbab7fa1..241a00d75027 100644
--- a/drivers/usb/isp1760/isp1760-if.c
+++ b/drivers/usb/isp1760/isp1760-if.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Glue code for the ISP1760 driver and bus
  * Currently there is support for
diff --git a/drivers/usb/isp1760/isp1760-regs.h b/drivers/usb/isp1760/isp1760-regs.h
index b67095c9a9d4..1f00c3850cf7 100644
--- a/drivers/usb/isp1760/isp1760-regs.h
+++ b/drivers/usb/isp1760/isp1760-regs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the NXP ISP1760 chip
  *
@@ -7,10 +8,6 @@
  * Contacts:
  *     Sebastian Siewior <bigeasy@linutronix.de>
  *     Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #ifndef _ISP1760_REGS_H_
diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c
index 69400f3da886..bac4ef5d9512 100644
--- a/drivers/usb/isp1760/isp1760-udc.c
+++ b/drivers/usb/isp1760/isp1760-udc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the NXP ISP1761 device controller
  *
@@ -5,10 +6,6 @@
  *
  * Contacts:
  *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #include <linux/interrupt.h>
@@ -1331,9 +1328,9 @@ static irqreturn_t isp1760_udc_irq(int irq, void *dev)
 	return status ? IRQ_HANDLED : IRQ_NONE;
 }
 
-static void isp1760_udc_vbus_poll(unsigned long data)
+static void isp1760_udc_vbus_poll(struct timer_list *t)
 {
-	struct isp1760_udc *udc = (struct isp1760_udc *)data;
+	struct isp1760_udc *udc = from_timer(udc, t, vbus_timer);
 	unsigned long flags;
 
 	spin_lock_irqsave(&udc->lock, flags);
@@ -1452,8 +1449,7 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq,
 	udc->regs = isp->regs;
 
 	spin_lock_init(&udc->lock);
-	setup_timer(&udc->vbus_timer, isp1760_udc_vbus_poll,
-		    (unsigned long)udc);
+	timer_setup(&udc->vbus_timer, isp1760_udc_vbus_poll, 0);
 
 	ret = isp1760_udc_init(udc);
 	if (ret < 0)
diff --git a/drivers/usb/isp1760/isp1760-udc.h b/drivers/usb/isp1760/isp1760-udc.h
index 26899ed81145..2d0b88747701 100644
--- a/drivers/usb/isp1760/isp1760-udc.h
+++ b/drivers/usb/isp1760/isp1760-udc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for the NXP ISP1761 device controller
  *
@@ -5,10 +6,6 @@
  *
  * Contacts:
  *	Laurent Pinchart <laurent.pinchart@ideasonboard.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
  */
 
 #ifndef _ISP1760_UDC_H_
diff --git a/drivers/usb/misc/Kconfig b/drivers/usb/misc/Kconfig
index 0f9f25db9163..68d2f2cd17dd 100644
--- a/drivers/usb/misc/Kconfig
+++ b/drivers/usb/misc/Kconfig
@@ -238,8 +238,8 @@ config USB_HUB_USB251XB
 	depends on I2C
 	help
 	  This option enables support for configuration via SMBus of the
-	  Microchip USB251xB/xBi USB 2.0 Hub Controller series.
-	  Configuration parameters may be set in devicetree or platform data.
+	  Microchip USB251x/xBi USB 2.0 Hub Controller series. Configuration
+	  parameters may be set in devicetree or platform data.
 	  Say Y or M here if you need to configure such a device via SMBus.
 
 config USB_HSIC_USB3503
diff --git a/drivers/usb/misc/Makefile b/drivers/usb/misc/Makefile
index 7fdb45fc976f..109f54f5b9aa 100644
--- a/drivers/usb/misc/Makefile
+++ b/drivers/usb/misc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the rest of the USB drivers
 # (the ones that don't fit into any other categories)
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 1c0ada75c35d..4b8712733fc7 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * adutux - driver for ADU devices from Ontrak Control Systems
  * This is an experimental driver. Use at your own risk.
@@ -5,11 +6,6 @@
  *
  * Copyright (c) 2003 John Homppi (SCO, leave this notice here)
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
  * derived from the Lego USB Tower driver 0.56:
  * Copyright (c) 2003 David Glance <davidgsf@sourceforge.net>
  *               2001 Juergen Stuber <stuber@loria.fr>
@@ -761,13 +757,11 @@ error:
 static void adu_disconnect(struct usb_interface *interface)
 {
 	struct adu_device *dev;
-	int minor;
 
 	dev = usb_get_intfdata(interface);
 
 	mutex_lock(&dev->mtx);	/* not interruptible */
 	dev->udev = NULL;	/* poison */
-	minor = dev->minor;
 	usb_deregister_dev(interface, &adu_class);
 	mutex_unlock(&dev->mtx);
 
diff --git a/drivers/usb/misc/appledisplay.c b/drivers/usb/misc/appledisplay.c
index 8efdc500e790..b3eb8b989bd4 100644
--- a/drivers/usb/misc/appledisplay.c
+++ b/drivers/usb/misc/appledisplay.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Apple Cinema Display driver
  *
  * Copyright (C) 2006  Michael Hanselmann (linux-kernel@hansmi.ch)
  *
  * Thanks to Caskey L. Dickson for his work with acdctl.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c
index abec6e604a62..b6a1b9331aa0 100644
--- a/drivers/usb/misc/chaoskey.c
+++ b/drivers/usb/misc/chaoskey.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * chaoskey - driver for ChaosKey device from Altus Metrum.
  *
@@ -11,15 +12,6 @@
  * bit stream.
  *
  * Copyright © 2015 Keith Packard <keithp@keithp.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the GNU
- * General Public License for more details.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/misc/cypress_cy7c63.c b/drivers/usb/misc/cypress_cy7c63.c
index 5c93a888c40e..bf4d2778907e 100644
--- a/drivers/usb/misc/cypress_cy7c63.c
+++ b/drivers/usb/misc/cypress_cy7c63.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * cypress_cy7c63.c
 *
@@ -23,10 +24,6 @@
 *
 *	For up-to-date information please visit:
 *	http://www.obock.de/kernel/cypress
-*
-*	This program is free software; you can redistribute it and/or
-*	modify it under the terms of the GNU General Public License as
-*	published by the Free Software Foundation, version 2.
 */
 
 #include <linux/module.h>
diff --git a/drivers/usb/misc/cytherm.c b/drivers/usb/misc/cytherm.c
index 63207c42acf6..66be86077292 100644
--- a/drivers/usb/misc/cytherm.c
+++ b/drivers/usb/misc/cytherm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* -*- linux-c -*-
  * Cypress USB Thermometer driver 
  * 
@@ -6,11 +7,6 @@
  * This driver works with Elektor magazine USB Interface as published in 
  * issue #291. It should also work with the original starter kit/demo board
  * from Cypress.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2.
- *
  */
 
 
diff --git a/drivers/usb/misc/ehset.c b/drivers/usb/misc/ehset.c
index c31b4a33e6bb..7895d61e733b 100644
--- a/drivers/usb/misc/ehset.c
+++ b/drivers/usb/misc/ehset.c
@@ -1,14 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2010-2013, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/misc/emi26.c b/drivers/usb/misc/emi26.c
index 8950fa5e973d..24d841850e05 100644
--- a/drivers/usb/misc/emi26.c
+++ b/drivers/usb/misc/emi26.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /* 
  * Emagic EMI 2|6 usb audio interface firmware loader.
  * Copyright (C) 2002
  * 	Tapio Laxström (tapio.laxstrom@iptime.fi)
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, as published by
- * the Free Software Foundation, version 2.
- * 
  * emi26.c,v 1.13 2002/03/08 13:10:26 tapio Exp
  */
 #include <linux/kernel.h>
diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c
index 1d9be4431b72..3eea60437f56 100644
--- a/drivers/usb/misc/emi62.c
+++ b/drivers/usb/misc/emi62.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /* 
  * Emagic EMI 2|6 usb audio interface firmware loader.
  * Copyright (C) 2002
  * 	Tapio Laxström (tapio.laxstrom@iptime.fi)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, as published by
- * the Free Software Foundation, version 2.
  */
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/usb/misc/ezusb.c b/drivers/usb/misc/ezusb.c
index 837208f14f86..f058d8029761 100644
--- a/drivers/usb/misc/ezusb.c
+++ b/drivers/usb/misc/ezusb.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * EZ-USB specific functions used by some of the USB to Serial drivers.
  *
  * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/misc/ftdi-elan.c b/drivers/usb/misc/ftdi-elan.c
index 424ff12f3b51..76c718ac8c78 100644
--- a/drivers/usb/misc/ftdi-elan.c
+++ b/drivers/usb/misc/ftdi-elan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB FTDI client driver for Elan Digital Systems's Uxxx adapters
  *
@@ -7,11 +8,6 @@
  * Author and Maintainer - Tony Olech - Elan Digital Systems
  * tony.olech@elandigitalsystems.com
  *
- * This program is free software;you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2.
- *
- *
  * This driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
  * based on various USB client drivers in the 2.6.15 linux kernel
  * with constant reference to the 3rd Edition of Linux Device Drivers
diff --git a/drivers/usb/misc/idmouse.c b/drivers/usb/misc/idmouse.c
index 39d8fedfaf3b..20b0f91a5d9b 100644
--- a/drivers/usb/misc/idmouse.c
+++ b/drivers/usb/misc/idmouse.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /* Siemens ID Mouse driver v0.6
 
-  This program is free software; you can redistribute it and/or
-  modify it under the terms of the GNU General Public License as
-  published by the Free Software Foundation; either version 2 of
-  the License, or (at your option) any later version.
-
   Copyright (C) 2004-5 by Florian 'Floe' Echtler  <echtler@fs.tum.de>
                       and Andreas  'ad'  Deresch <aderesch@fs.tum.de>
 
diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c
index be5881303681..ad3109490c0f 100644
--- a/drivers/usb/misc/iowarrior.c
+++ b/drivers/usb/misc/iowarrior.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Native support for the I/O-Warrior USB devices
  *
diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c
index 1c61830e96f9..4d30095d6ad2 100644
--- a/drivers/usb/misc/isight_firmware.c
+++ b/drivers/usb/misc/isight_firmware.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for loading USB isight firmware
  *
  * Copyright (C) 2008 Matthew Garrett <mjg@redhat.com>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation, version 2.
- *
  * The USB isight cameras in recent Apples are roughly compatible with the USB
  * video class specification, and can be driven by uvcvideo. However, they
  * need firmware to be loaded beforehand. After firmware loading, the device
diff --git a/drivers/usb/misc/ldusb.c b/drivers/usb/misc/ldusb.c
index 680bddb3ce05..5c1a3b852453 100644
--- a/drivers/usb/misc/ldusb.c
+++ b/drivers/usb/misc/ldusb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /**
  * Generic USB driver for report based interrupt in/out devices
  * like LD Didactic's USB devices. LD Didactic's USB devices are
@@ -12,11 +13,6 @@
  *
  * Copyright (C) 2005 Michael Hund <mhund@ld-didactic.de>
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation; either version 2 of
- *	the License, or (at your option) any later version.
- *
  * Derived from Lego USB Tower driver
  * Copyright (C) 2003 David Glance <advidgsf@sourceforge.net>
  *		 2001-2004 Juergen Stuber <starblue@users.sourceforge.net>
diff --git a/drivers/usb/misc/legousbtower.c b/drivers/usb/misc/legousbtower.c
index 5628f678ab59..c5be6e9e24a5 100644
--- a/drivers/usb/misc/legousbtower.c
+++ b/drivers/usb/misc/legousbtower.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * LEGO USB Tower driver
  *
  * Copyright (C) 2003 David Glance <davidgsf@sourceforge.net>
  *               2001-2004 Juergen Stuber <starblue@users.sourceforge.net>
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation; either version 2 of
- *	the License, or (at your option) any later version.
- *
  * derived from USB Skeleton driver - 0.5
  * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
  *
diff --git a/drivers/usb/misc/lvstest.c b/drivers/usb/misc/lvstest.c
index ddddd6387f66..e5c03c6d16e9 100644
--- a/drivers/usb/misc/lvstest.c
+++ b/drivers/usb/misc/lvstest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/usb/misc/lvstest.c
  *
@@ -5,10 +6,6 @@
  *
  * Copyright (C) 2014 ST Microelectronics
  * Pratyush Anand <pratyush.anand@gmail.com>
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
  */
 
 #include <linux/init.h>
diff --git a/drivers/usb/misc/rio500.c b/drivers/usb/misc/rio500.c
index ddfebb144aaa..7b9adeb3e7aa 100644
--- a/drivers/usb/misc/rio500.c
+++ b/drivers/usb/misc/rio500.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /* -*- linux-c -*- */
 
 /* 
@@ -6,20 +7,6 @@
  * Cesar Miquel (miquel@df.uba.ar)
  * 
  * based on hp_scanner.c by David E. Nelson (dnelson@jump.net)
- * 
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  *
  * Based upon mouse.c (Brad Keryan) and printer.c (Michael Gee).
  *
diff --git a/drivers/usb/misc/rio500_usb.h b/drivers/usb/misc/rio500_usb.h
index 359abc98e706..6db7a5863496 100644
--- a/drivers/usb/misc/rio500_usb.h
+++ b/drivers/usb/misc/rio500_usb.h
@@ -1,25 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*  ----------------------------------------------------------------------
-
     Copyright (C) 2000  Cesar Miquel  (miquel@df.uba.ar)
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
     ---------------------------------------------------------------------- */
 
-
-
 #define RIO_SEND_COMMAND			0x1
 #define RIO_RECV_COMMAND			0x2
 
diff --git a/drivers/usb/misc/sisusbvga/Makefile b/drivers/usb/misc/sisusbvga/Makefile
index 3142476ccc8e..6ed3a638261a 100644
--- a/drivers/usb/misc/sisusbvga/Makefile
+++ b/drivers/usb/misc/sisusbvga/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the sisusb driver (if driver is inside kernel tree).
 #
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 30774e0aeadd..3e65bdc2615c 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
  *
diff --git a/drivers/usb/misc/sisusbvga/sisusb.h b/drivers/usb/misc/sisusbvga/sisusb.h
index 55492a5930bd..20f03ad0ea16 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.h
+++ b/drivers/usb/misc/sisusbvga/sisusb.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * sisusb - usb kernel driver for Net2280/SiS315 based USB2VGA dongles
  *
diff --git a/drivers/usb/misc/sisusbvga/sisusb_con.c b/drivers/usb/misc/sisusbvga/sisusb_con.c
index f019d80ca9e4..73f7bde78e11 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_con.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_con.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
  *
diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.c b/drivers/usb/misc/sisusbvga/sisusb_init.c
index bf0032ca35ed..6a30e8bd9221 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_init.c
+++ b/drivers/usb/misc/sisusbvga/sisusb_init.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
 /*
  * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
  *
diff --git a/drivers/usb/misc/sisusbvga/sisusb_init.h b/drivers/usb/misc/sisusbvga/sisusb_init.h
index e79a616f0d26..1782c759c4ad 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_init.h
+++ b/drivers/usb/misc/sisusbvga/sisusb_init.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /* $XFree86$ */
 /* $XdotOrg$ */
 /*
diff --git a/drivers/usb/misc/sisusbvga/sisusb_struct.h b/drivers/usb/misc/sisusbvga/sisusb_struct.h
index 1c4240e802c1..706d77090e00 100644
--- a/drivers/usb/misc/sisusbvga/sisusb_struct.h
+++ b/drivers/usb/misc/sisusbvga/sisusb_struct.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
 /*
  * General structure definitions for universal mode switching modules
  *
diff --git a/drivers/usb/misc/trancevibrator.c b/drivers/usb/misc/trancevibrator.c
index 1862ed15ce28..d83af2a332e4 100644
--- a/drivers/usb/misc/trancevibrator.c
+++ b/drivers/usb/misc/trancevibrator.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * PlayStation 2 Trance Vibrator driver
  *
  * Copyright (C) 2006 Sam Hocevar <sam@zoy.org>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /* Standard include files */
diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c
index 135c91c434bf..a6efb9a72939 100644
--- a/drivers/usb/misc/usb251xb.c
+++ b/drivers/usb/misc/usb251xb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Microchip USB251xB USB 2.0 Hi-Speed Hub Controller
  * Configuration via SMBus.
@@ -7,25 +8,14 @@
  * This work is based on the USB3503 driver by Dongjin Kim and
  * a not-accepted patch by Fabien Lahoudere, see:
  * https://patchwork.kernel.org/patch/9257715/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/nls.h>
 #include <linux/of_device.h>
-#include <linux/of_gpio.h>
 #include <linux/slab.h>
 
 /* Internal Register Set Addresses & Default Values acc. to DS00001692C */
@@ -38,6 +28,7 @@
 #define USB251XB_DEF_PRODUCT_ID_12	0x2512 /* USB2512B/12Bi */
 #define USB251XB_DEF_PRODUCT_ID_13	0x2513 /* USB2513B/13Bi */
 #define USB251XB_DEF_PRODUCT_ID_14	0x2514 /* USB2514B/14Bi */
+#define USB251XB_DEF_PRODUCT_ID_17	0x2517 /* USB2517/17i */
 
 #define USB251XB_ADDR_DEVICE_ID_LSB	0x04
 #define USB251XB_ADDR_DEVICE_ID_MSB	0x05
@@ -82,7 +73,7 @@
 
 #define USB251XB_ADDR_PRODUCT_STRING_LEN	0x14
 #define USB251XB_ADDR_PRODUCT_STRING		0x54
-#define USB251XB_DEF_PRODUCT_STRING		"USB251xB/xBi"
+#define USB251XB_DEF_PRODUCT_STRING		"USB251xB/xBi/7i"
 
 #define USB251XB_ADDR_SERIAL_STRING_LEN		0x15
 #define USB251XB_ADDR_SERIAL_STRING		0x92
@@ -93,8 +84,10 @@
 
 #define USB251XB_ADDR_BOOST_UP	0xF6
 #define USB251XB_DEF_BOOST_UP	0x00
-#define USB251XB_ADDR_BOOST_X	0xF8
-#define USB251XB_DEF_BOOST_X	0x00
+#define USB251XB_ADDR_BOOST_57	0xF7
+#define USB251XB_DEF_BOOST_57	0x00
+#define USB251XB_ADDR_BOOST_14	0xF8
+#define USB251XB_DEF_BOOST_14	0x00
 
 #define USB251XB_ADDR_PORT_SWAP	0xFA
 #define USB251XB_DEF_PORT_SWAP	0x00
@@ -102,7 +95,11 @@
 #define USB251XB_ADDR_PORT_MAP_12	0xFB
 #define USB251XB_DEF_PORT_MAP_12	0x00
 #define USB251XB_ADDR_PORT_MAP_34	0xFC
-#define USB251XB_DEF_PORT_MAP_34	0x00 /* USB2513B/i & USB2514B/i only */
+#define USB251XB_DEF_PORT_MAP_34	0x00 /* USB251{3B/i,4B/i,7/i} only */
+#define USB251XB_ADDR_PORT_MAP_56	0xFD
+#define USB251XB_DEF_PORT_MAP_56	0x00 /* USB2517/i only */
+#define USB251XB_ADDR_PORT_MAP_7	0xFE
+#define USB251XB_DEF_PORT_MAP_7		0x00 /* USB2517/i only */
 
 #define USB251XB_ADDR_STATUS_COMMAND		0xFF
 #define USB251XB_STATUS_COMMAND_SMBUS_DOWN	0x04
@@ -119,7 +116,7 @@ struct usb251xb {
 	struct device *dev;
 	struct i2c_client *i2c;
 	u8 skip_config;
-	int gpio_reset;
+	struct gpio_desc *gpio_reset;
 	u16 vendor_id;
 	u16 product_id;
 	u16 device_id;
@@ -143,57 +140,97 @@ struct usb251xb {
 	char serial[USB251XB_STRING_BUFSIZE];
 	u8  bat_charge_en;
 	u8  boost_up;
-	u8  boost_x;
+	u8  boost_57;
+	u8  boost_14;
 	u8  port_swap;
 	u8  port_map12;
 	u8  port_map34;
+	u8  port_map56;
+	u8  port_map7;
 	u8  status;
 };
 
 struct usb251xb_data {
 	u16 product_id;
+	u8 port_cnt;
+	bool led_support;
+	bool bat_support;
 	char product_str[USB251XB_STRING_BUFSIZE / 2]; /* ASCII string */
 };
 
 static const struct usb251xb_data usb2512b_data = {
 	.product_id = 0x2512,
+	.port_cnt = 2,
+	.led_support = false,
+	.bat_support = true,
 	.product_str = "USB2512B",
 };
 
 static const struct usb251xb_data usb2512bi_data = {
 	.product_id = 0x2512,
+	.port_cnt = 2,
+	.led_support = false,
+	.bat_support = true,
 	.product_str = "USB2512Bi",
 };
 
 static const struct usb251xb_data usb2513b_data = {
 	.product_id = 0x2513,
+	.port_cnt = 3,
+	.led_support = false,
+	.bat_support = true,
 	.product_str = "USB2513B",
 };
 
 static const struct usb251xb_data usb2513bi_data = {
 	.product_id = 0x2513,
+	.port_cnt = 3,
+	.led_support = false,
+	.bat_support = true,
 	.product_str = "USB2513Bi",
 };
 
 static const struct usb251xb_data usb2514b_data = {
 	.product_id = 0x2514,
+	.port_cnt = 4,
+	.led_support = false,
+	.bat_support = true,
 	.product_str = "USB2514B",
 };
 
 static const struct usb251xb_data usb2514bi_data = {
 	.product_id = 0x2514,
+	.port_cnt = 4,
+	.led_support = false,
+	.bat_support = true,
 	.product_str = "USB2514Bi",
 };
 
+static const struct usb251xb_data usb2517_data = {
+	.product_id = 0x2517,
+	.port_cnt = 7,
+	.led_support = true,
+	.bat_support = false,
+	.product_str = "USB2517",
+};
+
+static const struct usb251xb_data usb2517i_data = {
+	.product_id = 0x2517,
+	.port_cnt = 7,
+	.led_support = true,
+	.bat_support = false,
+	.product_str = "USB2517i",
+};
+
 static void usb251xb_reset(struct usb251xb *hub, int state)
 {
-	if (!gpio_is_valid(hub->gpio_reset))
+	if (!hub->gpio_reset)
 		return;
 
-	gpio_set_value_cansleep(hub->gpio_reset, state);
+	gpiod_set_value_cansleep(hub->gpio_reset, state);
 
 	/* wait for hub recovery/stabilization */
-	if (state)
+	if (!state)
 		usleep_range(500, 750);	/* >=500us at power on */
 	else
 		usleep_range(1, 10);	/* >=1us at power down */
@@ -212,7 +249,7 @@ static int usb251xb_connect(struct usb251xb *hub)
 		i2c_wb[0] = 0x01;
 		i2c_wb[1] = USB251XB_STATUS_COMMAND_ATTACH;
 
-		usb251xb_reset(hub, 1);
+		usb251xb_reset(hub, 0);
 
 		err = i2c_smbus_write_i2c_block_data(hub->i2c,
 				USB251XB_ADDR_STATUS_COMMAND, 2, i2c_wb);
@@ -253,13 +290,16 @@ static int usb251xb_connect(struct usb251xb *hub)
 	       USB251XB_STRING_BUFSIZE);
 	i2c_wb[USB251XB_ADDR_BATTERY_CHARGING_ENABLE] = hub->bat_charge_en;
 	i2c_wb[USB251XB_ADDR_BOOST_UP]          = hub->boost_up;
-	i2c_wb[USB251XB_ADDR_BOOST_X]           = hub->boost_x;
+	i2c_wb[USB251XB_ADDR_BOOST_57]          = hub->boost_57;
+	i2c_wb[USB251XB_ADDR_BOOST_14]          = hub->boost_14;
 	i2c_wb[USB251XB_ADDR_PORT_SWAP]         = hub->port_swap;
 	i2c_wb[USB251XB_ADDR_PORT_MAP_12]       = hub->port_map12;
 	i2c_wb[USB251XB_ADDR_PORT_MAP_34]       = hub->port_map34;
+	i2c_wb[USB251XB_ADDR_PORT_MAP_56]       = hub->port_map56;
+	i2c_wb[USB251XB_ADDR_PORT_MAP_7]        = hub->port_map7;
 	i2c_wb[USB251XB_ADDR_STATUS_COMMAND] = USB251XB_STATUS_COMMAND_ATTACH;
 
-	usb251xb_reset(hub, 1);
+	usb251xb_reset(hub, 0);
 
 	/* write registers */
 	for (i = 0; i < (USB251XB_I2C_REG_SZ / USB251XB_I2C_WRITE_SZ); i++) {
@@ -297,7 +337,7 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 	struct device *dev = hub->dev;
 	struct device_node *np = dev->of_node;
 	int len, err, i;
-	u32 *property_u32 = NULL;
+	u32 property_u32 = 0;
 	const u32 *cproperty_u32;
 	const char *cproperty_char;
 	char str[USB251XB_STRING_BUFSIZE / 2];
@@ -312,19 +352,13 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 	else
 		hub->skip_config = 0;
 
-	hub->gpio_reset = of_get_named_gpio(np, "reset-gpios", 0);
-	if (hub->gpio_reset == -EPROBE_DEFER)
+	hub->gpio_reset = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_HIGH);
+	if (PTR_ERR(hub->gpio_reset) == -EPROBE_DEFER) {
 		return -EPROBE_DEFER;
-	if (gpio_is_valid(hub->gpio_reset)) {
-		err = devm_gpio_request_one(dev, hub->gpio_reset,
-					    GPIOF_OUT_INIT_LOW,
-					    "usb251xb reset");
-		if (err) {
-			dev_err(dev,
-				"unable to request GPIO %d as reset pin (%d)\n",
-				hub->gpio_reset, err);
-			return err;
-		}
+	} else if (IS_ERR(hub->gpio_reset)) {
+		err = PTR_ERR(hub->gpio_reset);
+		dev_err(dev, "unable to request GPIO reset pin (%d)\n", err);
+		return err;
 	}
 
 	if (of_property_read_u16_array(np, "vendor-id", &hub->vendor_id, 1))
@@ -374,16 +408,16 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 	if (of_get_property(np, "dynamic-power-switching", NULL))
 		hub->conf_data2 |= BIT(7);
 
-	if (!of_property_read_u32(np, "oc-delay-us", property_u32)) {
-		if (*property_u32 == 100) {
+	if (!of_property_read_u32(np, "oc-delay-us", &property_u32)) {
+		if (property_u32 == 100) {
 			/* 100 us*/
 			hub->conf_data2 &= ~BIT(5);
 			hub->conf_data2 &= ~BIT(4);
-		} else if (*property_u32 == 4000) {
+		} else if (property_u32 == 4000) {
 			/* 4 ms */
 			hub->conf_data2 &= ~BIT(5);
 			hub->conf_data2 |= BIT(4);
-		} else if (*property_u32 == 16000) {
+		} else if (property_u32 == 16000) {
 			/* 16 ms */
 			hub->conf_data2 |= BIT(5);
 			hub->conf_data2 |= BIT(4);
@@ -401,6 +435,9 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 	if (of_get_property(np, "port-mapping-mode", NULL))
 		hub->conf_data3 |= BIT(3);
 
+	if (data->led_support && of_get_property(np, "led-usb-mode", NULL))
+		hub->conf_data3 &= ~BIT(1);
+
 	if (of_get_property(np, "string-support", NULL))
 		hub->conf_data3 |= BIT(0);
 
@@ -410,8 +447,11 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 		for (i = 0; i < len / sizeof(u32); i++) {
 			u32 port = be32_to_cpu(cproperty_u32[i]);
 
-			if ((port >= 1) && (port <= 4))
+			if ((port >= 1) && (port <= data->port_cnt))
 				hub->non_rem_dev |= BIT(port);
+			else
+				dev_warn(dev, "NRD port %u doesn't exist\n",
+					port);
 		}
 	}
 
@@ -421,8 +461,11 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 		for (i = 0; i < len / sizeof(u32); i++) {
 			u32 port = be32_to_cpu(cproperty_u32[i]);
 
-			if ((port >= 1) && (port <= 4))
+			if ((port >= 1) && (port <= data->port_cnt))
 				hub->port_disable_sp |= BIT(port);
+			else
+				dev_warn(dev, "PDS port %u doesn't exist\n",
+					port);
 		}
 	}
 
@@ -432,14 +475,37 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 		for (i = 0; i < len / sizeof(u32); i++) {
 			u32 port = be32_to_cpu(cproperty_u32[i]);
 
-			if ((port >= 1) && (port <= 4))
+			if ((port >= 1) && (port <= data->port_cnt))
 				hub->port_disable_bp |= BIT(port);
+			else
+				dev_warn(dev, "PDB port %u doesn't exist\n",
+					port);
 		}
 	}
 
+	hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
+	if (!of_property_read_u32(np, "sp-max-total-current-microamp",
+	    &property_u32))
+		hub->max_power_sp = min_t(u8, property_u32 / 2000, 50);
+
+	hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
+	if (!of_property_read_u32(np, "bp-max-total-current-microamp",
+	    &property_u32))
+		hub->max_power_bp = min_t(u8, property_u32 / 2000, 255);
+
+	hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
+	if (!of_property_read_u32(np, "sp-max-removable-current-microamp",
+	    &property_u32))
+		hub->max_current_sp = min_t(u8, property_u32 / 2000, 50);
+
+	hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
+	if (!of_property_read_u32(np, "bp-max-removable-current-microamp",
+	    &property_u32))
+		hub->max_current_bp = min_t(u8, property_u32 / 2000, 255);
+
 	hub->power_on_time = USB251XB_DEF_POWER_ON_TIME;
-	if (!of_property_read_u32(np, "power-on-time-ms", property_u32))
-		hub->power_on_time = min_t(u8, *property_u32 / 2, 255);
+	if (!of_property_read_u32(np, "power-on-time-ms", &property_u32))
+		hub->power_on_time = min_t(u8, property_u32 / 2, 255);
 
 	if (of_property_read_u16_array(np, "language-id", &hub->lang_id, 1))
 		hub->lang_id = USB251XB_DEF_LANGUAGE_ID;
@@ -476,16 +542,15 @@ static int usb251xb_get_ofdata(struct usb251xb *hub,
 	/* The following parameters are currently not exposed to devicetree, but
 	 * may be as soon as needed.
 	 */
-	hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF;
-	hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS;
-	hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF;
-	hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS;
 	hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE;
 	hub->boost_up = USB251XB_DEF_BOOST_UP;
-	hub->boost_x = USB251XB_DEF_BOOST_X;
+	hub->boost_57 = USB251XB_DEF_BOOST_57;
+	hub->boost_14 = USB251XB_DEF_BOOST_14;
 	hub->port_swap = USB251XB_DEF_PORT_SWAP;
 	hub->port_map12 = USB251XB_DEF_PORT_MAP_12;
 	hub->port_map34 = USB251XB_DEF_PORT_MAP_34;
+	hub->port_map56 = USB251XB_DEF_PORT_MAP_56;
+	hub->port_map7  = USB251XB_DEF_PORT_MAP_7;
 
 	return 0;
 }
@@ -510,6 +575,12 @@ static const struct of_device_id usb251xb_of_match[] = {
 		.compatible = "microchip,usb2514bi",
 		.data = &usb2514bi_data,
 	}, {
+		.compatible = "microchip,usb2517",
+		.data = &usb2517_data,
+	}, {
+		.compatible = "microchip,usb2517i",
+		.data = &usb2517i_data,
+	}, {
 		/* sentinel */
 	}
 };
@@ -573,6 +644,8 @@ static const struct i2c_device_id usb251xb_id[] = {
 	{ "usb2513bi", 0 },
 	{ "usb2514b", 0 },
 	{ "usb2514bi", 0 },
+	{ "usb2517", 0 },
+	{ "usb2517i", 0 },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(i2c, usb251xb_id);
@@ -589,5 +662,5 @@ static struct i2c_driver usb251xb_i2c_driver = {
 module_i2c_driver(usb251xb_i2c_driver);
 
 MODULE_AUTHOR("Richard Leitner <richard.leitner@skidata.com>");
-MODULE_DESCRIPTION("USB251xB/xBi USB 2.0 Hub Controller Driver");
+MODULE_DESCRIPTION("USB251x/xBi USB 2.0 Hub Controller Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/usb/misc/usb3503.c b/drivers/usb/misc/usb3503.c
index 8e7737d7ac0a..465dbf68b463 100644
--- a/drivers/usb/misc/usb3503.c
+++ b/drivers/usb/misc/usb3503.c
@@ -1,21 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for SMSC USB3503 USB 2.0 hub controller driver
  *
  * Copyright (c) 2012-2013 Dongjin Kim (tobetter@gmail.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/misc/usb4604.c b/drivers/usb/misc/usb4604.c
index e9f37fb746ac..1b4de651e697 100644
--- a/drivers/usb/misc/usb4604.c
+++ b/drivers/usb/misc/usb4604.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for SMSC USB4604 USB HSIC 4-port 2.0 hub controller driver
  * Based on usb3503 driver
  *
  * Copyright (c) 2012-2013 Dongjin Kim (tobetter@gmail.com)
  * Copyright (c) 2016 Linaro Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/i2c.h>
diff --git a/drivers/usb/misc/usb_u132.h b/drivers/usb/misc/usb_u132.h
index dc2e5a31caec..4bf77736914f 100644
--- a/drivers/usb/misc/usb_u132.h
+++ b/drivers/usb/misc/usb_u132.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * Common Header File for the Elan Digital Systems U132 adapter
 * this file should be included by both the "ftdi-u132" and
@@ -9,11 +10,6 @@
 * Author and Maintainer - Tony Olech - Elan Digital Systems
 *(tony.olech@elandigitalsystems.com)
 *
-* This program is free software;you can redistribute it and/or
-* modify it under the terms of the GNU General Public License as
-* published by the Free Software Foundation, version 2.
-*
-*
 * The driver was written by Tony Olech(tony.olech@elandigitalsystems.com)
 * based on various USB client drivers in the 2.6.15 linux kernel
 * with constant reference to the 3rd Edition of Linux Device Drivers
diff --git a/drivers/usb/misc/usblcd.c b/drivers/usb/misc/usblcd.c
index 0f5ad896c7e3..9ba4a4e68d91 100644
--- a/drivers/usb/misc/usblcd.c
+++ b/drivers/usb/misc/usblcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*****************************************************************************
  *                          USBLCD Kernel Driver                             *
  *                            Version 1.05                                   *
diff --git a/drivers/usb/misc/usbsevseg.c b/drivers/usb/misc/usbsevseg.c
index 3f6a28045b53..12f7e94695a2 100644
--- a/drivers/usb/misc/usbsevseg.c
+++ b/drivers/usb/misc/usbsevseg.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB 7 Segment Driver
  *
  * Copyright (C) 2008 Harrison Metzger <harrisonmetz@gmail.com>
  * Based on usbled.c by Greg Kroah-Hartman (greg@kroah.com)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation, version 2.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index eee82ca55b7b..aedc9a7f149e 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/init.h>
@@ -202,12 +203,13 @@ found:
 			return tmp;
 	}
 
-	if (in) {
+	if (in)
 		dev->in_pipe = usb_rcvbulkpipe(udev,
 			in->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
+	if (out)
 		dev->out_pipe = usb_sndbulkpipe(udev,
 			out->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	}
+
 	if (iso_in) {
 		dev->iso_in = &iso_in->desc;
 		dev->in_iso_pipe = usb_rcvisocpipe(udev,
@@ -575,11 +577,16 @@ alloc_sglist(int nents, int max, int vary, struct usbtest_dev *dev, int pipe)
 	return sg;
 }
 
-static void sg_timeout(unsigned long _req)
+struct sg_timeout {
+	struct timer_list timer;
+	struct usb_sg_request *req;
+};
+
+static void sg_timeout(struct timer_list *t)
 {
-	struct usb_sg_request	*req = (struct usb_sg_request *) _req;
+	struct sg_timeout *timeout = from_timer(timeout, t, timer);
 
-	usb_sg_cancel(req);
+	usb_sg_cancel(timeout->req);
 }
 
 static int perform_sglist(
@@ -593,9 +600,11 @@ static int perform_sglist(
 {
 	struct usb_device	*udev = testdev_to_usbdev(tdev);
 	int			retval = 0;
-	struct timer_list	sg_timer;
+	struct sg_timeout	timeout = {
+		.req = req,
+	};
 
-	setup_timer_on_stack(&sg_timer, sg_timeout, (unsigned long) req);
+	timer_setup_on_stack(&timeout.timer, sg_timeout, 0);
 
 	while (retval == 0 && iterations-- > 0) {
 		retval = usb_sg_init(req, udev, pipe,
@@ -606,13 +615,14 @@ static int perform_sglist(
 
 		if (retval)
 			break;
-		mod_timer(&sg_timer, jiffies +
+		mod_timer(&timeout.timer, jiffies +
 				msecs_to_jiffies(SIMPLE_IO_TIMEOUT));
 		usb_sg_wait(req);
-		if (!del_timer_sync(&sg_timer))
+		if (!del_timer_sync(&timeout.timer))
 			retval = -ETIMEDOUT;
 		else
 			retval = req->status;
+		destroy_timer_on_stack(&timeout.timer);
 
 		/* FIXME check resulting data pattern */
 
@@ -1014,7 +1024,7 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 	/* FIXME fetch strings from at least the device descriptor */
 
 	/* [9.4.5] get_status always works */
-	retval = usb_get_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
+	retval = usb_get_std_status(udev, USB_RECIP_DEVICE, 0, dev->buf);
 	if (retval) {
 		dev_err(&iface->dev, "get dev status --> %d\n", retval);
 		return retval;
@@ -1024,7 +1034,7 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 	 * the device's remote wakeup feature ... if we can, test that here
 	 */
 
-	retval = usb_get_status(udev, USB_RECIP_INTERFACE,
+	retval = usb_get_std_status(udev, USB_RECIP_INTERFACE,
 			iface->altsetting[0].desc.bInterfaceNumber, dev->buf);
 	if (retval) {
 		dev_err(&iface->dev, "get interface status --> %d\n", retval);
@@ -1613,7 +1623,7 @@ static int verify_not_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
 	u16	status;
 
 	/* shouldn't look or act halted */
-	retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
+	retval = usb_get_std_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
 	if (retval < 0) {
 		ERROR(tdev, "ep %02x couldn't get no-halt status, %d\n",
 				ep, retval);
@@ -1635,7 +1645,7 @@ static int verify_halted(struct usbtest_dev *tdev, int ep, struct urb *urb)
 	u16	status;
 
 	/* should look and act halted */
-	retval = usb_get_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
+	retval = usb_get_std_status(urb->dev, USB_RECIP_ENDPOINT, ep, &status);
 	if (retval < 0) {
 		ERROR(tdev, "ep %02x couldn't get halt status, %d\n",
 				ep, retval);
@@ -1908,7 +1918,7 @@ static struct urb *iso_alloc_urb(
 
 	if (bytes < 0 || !desc)
 		return NULL;
-	maxp = 0x7ff & usb_endpoint_maxp(desc);
+	maxp = usb_endpoint_maxp(desc);
 	maxp *= usb_endpoint_maxp_mult(desc);
 	packets = DIV_ROUND_UP(bytes, maxp);
 
@@ -1964,6 +1974,9 @@ test_queue(struct usbtest_dev *dev, struct usbtest_param_32 *param,
 	int			status = 0;
 	struct urb		*urbs[param->sglen];
 
+	if (!param->sglen || param->iterations > UINT_MAX / param->sglen)
+		return -EINVAL;
+
 	memset(&context, 0, sizeof(context));
 	context.count = param->iterations * param->sglen;
 	context.dev = dev;
@@ -2087,6 +2100,8 @@ usbtest_do_ioctl(struct usb_interface *intf, struct usbtest_param_32 *param)
 
 	if (param->iterations <= 0)
 		return -EINVAL;
+	if (param->sglen > MAX_SGLEN)
+		return -EINVAL;
 	/*
 	 * Just a bunch of test cases that every HCD is expected to handle.
 	 *
diff --git a/drivers/usb/misc/uss720.c b/drivers/usb/misc/uss720.c
index 8a13b2fcf3e1..263c97fec708 100644
--- a/drivers/usb/misc/uss720.c
+++ b/drivers/usb/misc/uss720.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*****************************************************************************/
 
 /*
@@ -6,20 +7,6 @@
  *	Copyright (C) 1999, 2005, 2010
  *	    Thomas Sailer (t.sailer@alumni.ethz.ch)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
- *	This program is distributed in the hope that it will be useful,
- *	but WITHOUT ANY WARRANTY; without even the implied warranty of
- *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *	GNU General Public License for more details.
- *
- *	You should have received a copy of the GNU General Public License
- *	along with this program; if not, write to the Free Software
- *	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  *  Based on parport_pc.c
  *
  *  History:
diff --git a/drivers/usb/misc/yurex.c b/drivers/usb/misc/yurex.c
index 58abdf28620a..8abb6cbbd98a 100644
--- a/drivers/usb/misc/yurex.c
+++ b/drivers/usb/misc/yurex.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Driver for Meywa-Denki & KAYAC YUREX
  *
  * Copyright (C) 2010 Tomoki Sekiyama (tomoki.sekiyama@gmail.com)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation, version 2.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/mon/Makefile b/drivers/usb/mon/Makefile
index 8ed24ab08698..09f43e89633c 100644
--- a/drivers/usb/mon/Makefile
+++ b/drivers/usb/mon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for USB monitor
 #
diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c
index b6d8bf475c92..f6ae753ab99b 100644
--- a/drivers/usb/mon/mon_bin.c
+++ b/drivers/usb/mon/mon_bin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * The USB Monitor, inspired by Dave Harding's USBMon.
  *
diff --git a/drivers/usb/mon/mon_main.c b/drivers/usb/mon/mon_main.c
index 46847340b819..9812d102a005 100644
--- a/drivers/usb/mon/mon_main.c
+++ b/drivers/usb/mon/mon_main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * The USB Monitor, inspired by Dave Harding's USBMon.
  *
diff --git a/drivers/usb/mon/mon_stat.c b/drivers/usb/mon/mon_stat.c
index 5bdf73a57498..98ab0cc473d6 100644
--- a/drivers/usb/mon/mon_stat.c
+++ b/drivers/usb/mon/mon_stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * The USB Monitor, inspired by Dave Harding's USBMon.
  *
diff --git a/drivers/usb/mon/mon_text.c b/drivers/usb/mon/mon_text.c
index 19c416d69eb9..f5e1bb5e5217 100644
--- a/drivers/usb/mon/mon_text.c
+++ b/drivers/usb/mon/mon_text.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * The USB Monitor, inspired by Dave Harding's USBMon.
  *
diff --git a/drivers/usb/mon/usb_mon.h b/drivers/usb/mon/usb_mon.h
index df9a4df342c7..aa64efaba366 100644
--- a/drivers/usb/mon/usb_mon.h
+++ b/drivers/usb/mon/usb_mon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The USB Monitor, inspired by Dave Harding's USBMon.
  *
diff --git a/drivers/usb/mtu3/Makefile b/drivers/usb/mtu3/Makefile
index 60e0fff7a847..4a9715812bf9 100644
--- a/drivers/usb/mtu3/Makefile
+++ b/drivers/usb/mtu3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 ccflags-$(CONFIG_USB_MTU3_DEBUG)	+= -DDEBUG
 
diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h
index b26fffc58446..3c888d942a9f 100644
--- a/drivers/usb/mtu3/mtu3.h
+++ b/drivers/usb/mtu3/mtu3.h
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3.h - MediaTek USB3 DRD header
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef __MTU3_H__
@@ -46,6 +37,9 @@ struct mtu3_request;
 #define	MU3D_EP_RXCR1(epnum)	(U3D_RX1CSR1 + (((epnum) - 1) * 0x10))
 #define	MU3D_EP_RXCR2(epnum)	(U3D_RX1CSR2 + (((epnum) - 1) * 0x10))
 
+#define USB_QMU_TQHIAR(epnum)	(U3D_TXQHIAR1 + (((epnum) - 1) * 0x4))
+#define USB_QMU_RQHIAR(epnum)	(U3D_RXQHIAR1 + (((epnum) - 1) * 0x4))
+
 #define USB_QMU_RQCSR(epnum)	(U3D_RXQCSR1 + (((epnum) - 1) * 0x10))
 #define USB_QMU_RQSAR(epnum)	(U3D_RXQSAR1 + (((epnum) - 1) * 0x10))
 #define USB_QMU_RQCPR(epnum)	(U3D_RXQCPR1 + (((epnum) - 1) * 0x10))
@@ -91,6 +85,7 @@ enum mtu3_speed {
 	MTU3_SPEED_FULL = 1,
 	MTU3_SPEED_HIGH = 3,
 	MTU3_SPEED_SUPER = 4,
+	MTU3_SPEED_SUPER_PLUS = 5,
 };
 
 /**
@@ -112,6 +107,19 @@ enum mtu3_g_ep0_state {
 };
 
 /**
+ * MTU3_DR_FORCE_NONE: automatically switch host and periperal mode
+ *		by IDPIN signal.
+ * MTU3_DR_FORCE_HOST: force to enter host mode and override OTG
+ *		IDPIN signal.
+ * MTU3_DR_FORCE_DEVICE: force to enter peripheral mode.
+ */
+enum mtu3_dr_force_mode {
+	MTU3_DR_FORCE_NONE = 0,
+	MTU3_DR_FORCE_HOST,
+	MTU3_DR_FORCE_DEVICE,
+};
+
+/**
  * @base: the base address of fifo
  * @limit: the bitmap size in bits
  * @bitmap: fifo bitmap in unit of @MTU3_EP_FIFO_UNIT
@@ -138,23 +146,33 @@ struct mtu3_fifo_info {
  *	Checksum value is calculated over the 16 bytes of the GPD by default;
  * @data_buf_len (RX ONLY): This value indicates the length of
  *	the assigned data buffer
+ * @tx_ext_addr (TX ONLY): [3:0] are 4 extension bits of @buffer,
+ *	[7:4] are 4 extension bits of @next_gpd
  * @next_gpd: Physical address of the next GPD
  * @buffer: Physical address of the data buffer
  * @buf_len:
  *	(TX): This value indicates the length of the assigned data buffer
  *	(RX): The total length of data received
  * @ext_len: reserved
+ * @rx_ext_addr(RX ONLY): [3:0] are 4 extension bits of @buffer,
+ *	[7:4] are 4 extension bits of @next_gpd
  * @ext_flag:
  *	bit5 (TX ONLY): Zero Length Packet (ZLP),
  */
 struct qmu_gpd {
 	__u8 flag;
 	__u8 chksum;
-	__le16 data_buf_len;
+	union {
+		__le16 data_buf_len;
+		__le16 tx_ext_addr;
+	};
 	__le32 next_gpd;
 	__le32 buffer;
 	__le16 buf_len;
-	__u8 ext_len;
+	union {
+		__u8 ext_len;
+		__u8 rx_ext_addr;
+	};
 	__u8 ext_flag;
 } __packed;
 
@@ -183,7 +201,6 @@ struct mtu3_gpd_ring {
 *		xHCI driver initialization, it's necessary for system bootup
 *		as device.
 * @is_u3_drd: whether port0 supports usb3.0 dual-role device or not
-* @id_*: used to maually switch between host and device modes by idpin
 * @manual_drd_enabled: it's true when supports dual-role device by debugfs
 *		to switch host/device modes depending on user input.
 */
@@ -194,10 +211,6 @@ struct otg_switch_mtk {
 	struct notifier_block id_nb;
 	struct delayed_work extcon_reg_dwork;
 	bool is_u3_drd;
-	/* dual-role switch by debugfs */
-	struct pinctrl *id_pinctrl;
-	struct pinctrl_state *id_float;
-	struct pinctrl_state *id_ground;
 	bool manual_drd_enabled;
 };
 
@@ -206,14 +219,17 @@ struct otg_switch_mtk {
  * @ippc_base: register base address of IP Power and Clock interface (IPPC)
  * @vusb33: usb3.3V shared by device/host IP
  * @sys_clk: system clock of mtu3, shared by device/host IP
+ * @ref_clk: reference clock
+ * @mcu_clk: mcu_bus_ck clock for AHB bus etc
+ * @dma_clk: dma_bus_ck clock for AXI bus etc
  * @dr_mode: works in which mode:
  *		host only, device only or dual-role mode
  * @u2_ports: number of usb2.0 host ports
  * @u3_ports: number of usb3.0 host ports
+ * @u3p_dis_msk: mask of disabling usb3 ports, for example, bit0==1 to
+ *		disable u3port0, bit1==1 to disable u3port1,... etc
  * @dbgfs_root: only used when supports manual dual-role switch via debugfs
  * @wakeup_en: it's true when supports remote wakeup in host mode
- * @wk_deb_p0: port0's wakeup debounce clock
- * @wk_deb_p1: it's optional, and depends on port1 is supported or not
  */
 struct ssusb_mtk {
 	struct device *dev;
@@ -226,17 +242,18 @@ struct ssusb_mtk {
 	struct regulator *vusb33;
 	struct clk *sys_clk;
 	struct clk *ref_clk;
+	struct clk *mcu_clk;
+	struct clk *dma_clk;
 	/* otg */
 	struct otg_switch_mtk otg_switch;
 	enum usb_dr_mode dr_mode;
 	bool is_host;
 	int u2_ports;
 	int u3_ports;
+	int u3p_dis_msk;
 	struct dentry *dbgfs_root;
 	/* usb wakeup for host mode */
 	bool wakeup_en;
-	struct clk *wk_deb_p0;
-	struct clk *wk_deb_p1;
 	struct regmap *pericfg;
 };
 
diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c
index 99c65b0788ff..b1b99a8f6a7a 100644
--- a/drivers/usb/mtu3/mtu3_core.c
+++ b/drivers/usb/mtu3/mtu3_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_core.c - hardware access layer and gadget init/exit of
  *                     MediaTek usb3 Dual-Role Controller Driver
@@ -5,18 +6,9 @@
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
+#include <linux/dma-mapping.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
@@ -114,7 +106,9 @@ static int mtu3_device_enable(struct mtu3 *mtu)
 	mtu3_clrbits(ibase, SSUSB_U2_CTRL(0),
 		(SSUSB_U2_PORT_DIS | SSUSB_U2_PORT_PDN |
 		SSUSB_U2_PORT_HOST_SEL));
-	mtu3_setbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
+
+	if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG)
+		mtu3_setbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
 
 	return ssusb_check_clocks(mtu->ssusb, check_clk);
 }
@@ -129,7 +123,10 @@ static void mtu3_device_disable(struct mtu3 *mtu)
 
 	mtu3_setbits(ibase, SSUSB_U2_CTRL(0),
 		SSUSB_U2_PORT_DIS | SSUSB_U2_PORT_PDN);
-	mtu3_clrbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
+
+	if (mtu->ssusb->dr_mode == USB_DR_MODE_OTG)
+		mtu3_clrbits(ibase, SSUSB_U2_CTRL(0), SSUSB_U2_PORT_OTG_SEL);
+
 	mtu3_setbits(ibase, U3D_SSUSB_IP_PW_CTRL2, SSUSB_IP_DEV_PDN);
 }
 
@@ -236,7 +233,7 @@ void mtu3_ep_stall_set(struct mtu3_ep *mep, bool set)
 
 void mtu3_dev_on_off(struct mtu3 *mtu, int is_on)
 {
-	if (mtu->is_u3_ip && (mtu->max_speed == USB_SPEED_SUPER))
+	if (mtu->is_u3_ip && mtu->max_speed >= USB_SPEED_SUPER)
 		mtu3_ss_func_set(mtu, is_on);
 	else
 		mtu3_hs_softconn_set(mtu, is_on);
@@ -546,6 +543,9 @@ static void mtu3_set_speed(struct mtu3 *mtu)
 		mtu3_clrbits(mbase, U3D_USB3_CONFIG, USB3_EN);
 		/* HS/FS detected by HW */
 		mtu3_setbits(mbase, U3D_POWER_MANAGEMENT, HS_ENABLE);
+	} else if (mtu->max_speed == USB_SPEED_SUPER) {
+		mtu3_clrbits(mtu->ippc_base, SSUSB_U3_CTRL(0),
+			     SSUSB_U3_PORT_SSP_SPEED);
 	}
 
 	dev_info(mtu->dev, "max_speed: %s\n",
@@ -623,6 +623,10 @@ static irqreturn_t mtu3_link_isr(struct mtu3 *mtu)
 		udev_speed = USB_SPEED_SUPER;
 		maxpkt = 512;
 		break;
+	case MTU3_SPEED_SUPER_PLUS:
+		udev_speed = USB_SPEED_SUPER_PLUS;
+		maxpkt = 512;
+		break;
 	default:
 		udev_speed = USB_SPEED_UNKNOWN;
 		break;
@@ -759,7 +763,31 @@ static void mtu3_hw_exit(struct mtu3 *mtu)
 	mtu3_mem_free(mtu);
 }
 
-/*-------------------------------------------------------------------------*/
+/**
+ * we set 32-bit DMA mask by default, here check whether the controller
+ * supports 36-bit DMA or not, if it does, set 36-bit DMA mask.
+ */
+static int mtu3_set_dma_mask(struct mtu3 *mtu)
+{
+	struct device *dev = mtu->dev;
+	bool is_36bit = false;
+	int ret = 0;
+	u32 value;
+
+	value = mtu3_readl(mtu->mac_base, U3D_MISC_CTRL);
+	if (value & DMA_ADDR_36BIT) {
+		is_36bit = true;
+		ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(36));
+		/* If set 36-bit DMA mask fails, fall back to 32-bit DMA mask */
+		if (ret) {
+			is_36bit = false;
+			ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+		}
+	}
+	dev_info(dev, "dma mask: %s bits\n", is_36bit ? "36" : "32");
+
+	return ret;
+}
 
 int ssusb_gadget_init(struct ssusb_mtk *ssusb)
 {
@@ -774,9 +802,9 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb)
 		return -ENOMEM;
 
 	mtu->irq = platform_get_irq(pdev, 0);
-	if (mtu->irq <= 0) {
+	if (mtu->irq < 0) {
 		dev_err(dev, "fail to get irq number\n");
-		return -ENODEV;
+		return mtu->irq;
 	}
 	dev_info(dev, "irq %d\n", mtu->irq);
 
@@ -800,14 +828,15 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb)
 	case USB_SPEED_FULL:
 	case USB_SPEED_HIGH:
 	case USB_SPEED_SUPER:
+	case USB_SPEED_SUPER_PLUS:
 		break;
 	default:
 		dev_err(dev, "invalid max_speed: %s\n",
 			usb_speed_string(mtu->max_speed));
 		/* fall through */
 	case USB_SPEED_UNKNOWN:
-		/* default as SS */
-		mtu->max_speed = USB_SPEED_SUPER;
+		/* default as SSP */
+		mtu->max_speed = USB_SPEED_SUPER_PLUS;
 		break;
 	}
 
@@ -820,6 +849,12 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb)
 		return ret;
 	}
 
+	ret = mtu3_set_dma_mask(mtu);
+	if (ret) {
+		dev_err(dev, "mtu3 set dma_mask failed:%d\n", ret);
+		goto dma_mask_err;
+	}
+
 	ret = devm_request_irq(dev, mtu->irq, mtu3_irq, 0, dev_name(dev), mtu);
 	if (ret) {
 		dev_err(dev, "request irq %d failed!\n", mtu->irq);
@@ -845,6 +880,7 @@ int ssusb_gadget_init(struct ssusb_mtk *ssusb)
 gadget_err:
 	device_init_wakeup(dev, false);
 
+dma_mask_err:
 irq_err:
 	mtu3_hw_exit(mtu);
 	ssusb->u3d = NULL;
diff --git a/drivers/usb/mtu3/mtu3_dr.c b/drivers/usb/mtu3/mtu3_dr.c
index 560256115b23..db7562d99b95 100644
--- a/drivers/usb/mtu3/mtu3_dr.c
+++ b/drivers/usb/mtu3/mtu3_dr.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_dr.c - dual role switch and host glue layer
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/debugfs.h>
@@ -261,21 +252,22 @@ static void extcon_register_dwork(struct work_struct *work)
  * depending on user input.
  * This is useful in special cases, such as uses TYPE-A receptacle but also
  * wants to support dual-role mode.
- * It generates cable state changes by pulling up/down IDPIN and
- * notifies driver to switch mode by "extcon-usb-gpio".
- * NOTE: when use MICRO receptacle, should not enable this interface.
  */
 static void ssusb_mode_manual_switch(struct ssusb_mtk *ssusb, int to_host)
 {
 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
 
-	if (to_host)
-		pinctrl_select_state(otg_sx->id_pinctrl, otg_sx->id_ground);
-	else
-		pinctrl_select_state(otg_sx->id_pinctrl, otg_sx->id_float);
+	if (to_host) {
+		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST);
+		ssusb_set_mailbox(otg_sx, MTU3_VBUS_OFF);
+		ssusb_set_mailbox(otg_sx, MTU3_ID_GROUND);
+	} else {
+		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_DEVICE);
+		ssusb_set_mailbox(otg_sx, MTU3_ID_FLOAT);
+		ssusb_set_mailbox(otg_sx, MTU3_VBUS_VALID);
+	}
 }
 
-
 static int ssusb_mode_show(struct seq_file *sf, void *unused)
 {
 	struct ssusb_mtk *ssusb = sf->private;
@@ -388,17 +380,45 @@ static void ssusb_debugfs_exit(struct ssusb_mtk *ssusb)
 	debugfs_remove_recursive(ssusb->dbgfs_root);
 }
 
+void ssusb_set_force_mode(struct ssusb_mtk *ssusb,
+			  enum mtu3_dr_force_mode mode)
+{
+	u32 value;
+
+	value = mtu3_readl(ssusb->ippc_base, SSUSB_U2_CTRL(0));
+	switch (mode) {
+	case MTU3_DR_FORCE_DEVICE:
+		value |= SSUSB_U2_PORT_FORCE_IDDIG | SSUSB_U2_PORT_RG_IDDIG;
+		break;
+	case MTU3_DR_FORCE_HOST:
+		value |= SSUSB_U2_PORT_FORCE_IDDIG;
+		value &= ~SSUSB_U2_PORT_RG_IDDIG;
+		break;
+	case MTU3_DR_FORCE_NONE:
+		value &= ~(SSUSB_U2_PORT_FORCE_IDDIG | SSUSB_U2_PORT_RG_IDDIG);
+		break;
+	default:
+		return;
+	}
+	mtu3_writel(ssusb->ippc_base, SSUSB_U2_CTRL(0), value);
+}
+
 int ssusb_otg_switch_init(struct ssusb_mtk *ssusb)
 {
 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
 
-	INIT_DELAYED_WORK(&otg_sx->extcon_reg_dwork, extcon_register_dwork);
-
-	if (otg_sx->manual_drd_enabled)
+	if (otg_sx->manual_drd_enabled) {
 		ssusb_debugfs_init(ssusb);
-
-	/* It is enough to delay 1s for waiting for host initialization */
-	schedule_delayed_work(&otg_sx->extcon_reg_dwork, HZ);
+	} else {
+		INIT_DELAYED_WORK(&otg_sx->extcon_reg_dwork,
+				  extcon_register_dwork);
+
+		/*
+		 * It is enough to delay 1s for waiting for
+		 * host initialization
+		 */
+		schedule_delayed_work(&otg_sx->extcon_reg_dwork, HZ);
+	}
 
 	return 0;
 }
@@ -407,8 +427,8 @@ void ssusb_otg_switch_exit(struct ssusb_mtk *ssusb)
 {
 	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
 
-	cancel_delayed_work(&otg_sx->extcon_reg_dwork);
-
 	if (otg_sx->manual_drd_enabled)
 		ssusb_debugfs_exit(ssusb);
+	else
+		cancel_delayed_work(&otg_sx->extcon_reg_dwork);
 }
diff --git a/drivers/usb/mtu3/mtu3_dr.h b/drivers/usb/mtu3/mtu3_dr.h
index 9b228b5811b0..c179192408ba 100644
--- a/drivers/usb/mtu3/mtu3_dr.h
+++ b/drivers/usb/mtu3/mtu3_dr.h
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_dr.h - dual role switch and host glue layer header
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef _MTU3_DR_H_
@@ -87,6 +78,8 @@ static inline void ssusb_gadget_exit(struct ssusb_mtk *ssusb)
 int ssusb_otg_switch_init(struct ssusb_mtk *ssusb);
 void ssusb_otg_switch_exit(struct ssusb_mtk *ssusb);
 int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on);
+void ssusb_set_force_mode(struct ssusb_mtk *ssusb,
+			  enum mtu3_dr_force_mode mode);
 
 #else
 
@@ -103,6 +96,10 @@ static inline int ssusb_set_vbus(struct otg_switch_mtk *otg_sx, int is_on)
 	return 0;
 }
 
+static inline void
+ssusb_set_force_mode(struct ssusb_mtk *ssusb, enum mtu3_dr_force_mode mode)
+{}
+
 #endif
 
 #endif		/* _MTU3_DR_H_ */
diff --git a/drivers/usb/mtu3/mtu3_gadget.c b/drivers/usb/mtu3/mtu3_gadget.c
index 434fca58143c..f05f10f5c171 100644
--- a/drivers/usb/mtu3/mtu3_gadget.c
+++ b/drivers/usb/mtu3/mtu3_gadget.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_gadget.c - MediaTek usb3 DRD peripheral support
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include "mtu3.h"
@@ -89,6 +80,7 @@ static int mtu3_ep_enable(struct mtu3_ep *mep)
 
 	switch (mtu->g.speed) {
 	case USB_SPEED_SUPER:
+	case USB_SPEED_SUPER_PLUS:
 		if (usb_endpoint_xfer_int(desc) ||
 				usb_endpoint_xfer_isoc(desc)) {
 			interval = desc->bInterval;
@@ -456,7 +448,7 @@ static int mtu3_gadget_wakeup(struct usb_gadget *gadget)
 		return  -EOPNOTSUPP;
 
 	spin_lock_irqsave(&mtu->lock, flags);
-	if (mtu->g.speed == USB_SPEED_SUPER) {
+	if (mtu->g.speed >= USB_SPEED_SUPER) {
 		mtu3_setbits(mtu->mac_base, U3D_LINK_POWER_CONTROL, UX_EXIT);
 	} else {
 		mtu3_setbits(mtu->mac_base, U3D_POWER_MANAGEMENT, RESUME);
diff --git a/drivers/usb/mtu3/mtu3_gadget_ep0.c b/drivers/usb/mtu3/mtu3_gadget_ep0.c
index 958d74dd2b78..ebdcf7a38c29 100644
--- a/drivers/usb/mtu3/mtu3_gadget_ep0.c
+++ b/drivers/usb/mtu3/mtu3_gadget_ep0.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_gadget_ep0.c - MediaTek USB3 DRD peripheral driver ep0 handling
  *
  * Copyright (c) 2016 MediaTek Inc.
  *
  * Author:  Chunfeng.Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/usb/composite.h>
@@ -212,8 +203,8 @@ ep0_get_status(struct mtu3 *mtu, const struct usb_ctrlrequest *setup)
 	case USB_RECIP_DEVICE:
 		result[0] = mtu->is_self_powered << USB_DEVICE_SELF_POWERED;
 		result[0] |= mtu->may_wakeup << USB_DEVICE_REMOTE_WAKEUP;
-		/* superspeed only */
-		if (mtu->g.speed == USB_SPEED_SUPER) {
+
+		if (mtu->g.speed >= USB_SPEED_SUPER) {
 			result[0] |= mtu->u1_enable << USB_DEV_STAT_U1_ENABLED;
 			result[0] |= mtu->u2_enable << USB_DEV_STAT_U2_ENABLED;
 		}
@@ -329,8 +320,8 @@ static int ep0_handle_feature_dev(struct mtu3 *mtu,
 		handled = handle_test_mode(mtu, setup);
 		break;
 	case USB_DEVICE_U1_ENABLE:
-		if (mtu->g.speed != USB_SPEED_SUPER ||
-			mtu->g.state != USB_STATE_CONFIGURED)
+		if (mtu->g.speed < USB_SPEED_SUPER ||
+		    mtu->g.state != USB_STATE_CONFIGURED)
 			break;
 
 		lpc = mtu3_readl(mbase, U3D_LINK_POWER_CONTROL);
@@ -344,8 +335,8 @@ static int ep0_handle_feature_dev(struct mtu3 *mtu,
 		handled = 1;
 		break;
 	case USB_DEVICE_U2_ENABLE:
-		if (mtu->g.speed != USB_SPEED_SUPER ||
-			mtu->g.state != USB_STATE_CONFIGURED)
+		if (mtu->g.speed < USB_SPEED_SUPER ||
+		    mtu->g.state != USB_STATE_CONFIGURED)
 			break;
 
 		lpc = mtu3_readl(mbase, U3D_LINK_POWER_CONTROL);
@@ -384,8 +375,8 @@ static int ep0_handle_feature(struct mtu3 *mtu,
 		break;
 	case USB_RECIP_INTERFACE:
 		/* superspeed only */
-		if ((value == USB_INTRF_FUNC_SUSPEND)
-			&& (mtu->g.speed == USB_SPEED_SUPER)) {
+		if (value == USB_INTRF_FUNC_SUSPEND &&
+		    mtu->g.speed >= USB_SPEED_SUPER) {
 			/*
 			 * forward the request because function drivers
 			 * should handle it
diff --git a/drivers/usb/mtu3/mtu3_host.c b/drivers/usb/mtu3/mtu3_host.c
index e42d308b8dc2..d237d7e65c44 100644
--- a/drivers/usb/mtu3/mtu3_host.c
+++ b/drivers/usb/mtu3/mtu3_host.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_dr.c - dual role switch and host glue layer
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/clk.h>
@@ -79,20 +70,6 @@ int ssusb_wakeup_of_property_parse(struct ssusb_mtk *ssusb,
 	if (!ssusb->wakeup_en)
 		return 0;
 
-	ssusb->wk_deb_p0 = devm_clk_get(dev, "wakeup_deb_p0");
-	if (IS_ERR(ssusb->wk_deb_p0)) {
-		dev_err(dev, "fail to get wakeup_deb_p0\n");
-		return PTR_ERR(ssusb->wk_deb_p0);
-	}
-
-	if (of_property_read_bool(dn, "wakeup_deb_p1")) {
-		ssusb->wk_deb_p1 = devm_clk_get(dev, "wakeup_deb_p1");
-		if (IS_ERR(ssusb->wk_deb_p1)) {
-			dev_err(dev, "fail to get wakeup_deb_p1\n");
-			return PTR_ERR(ssusb->wk_deb_p1);
-		}
-	}
-
 	ssusb->pericfg = syscon_regmap_lookup_by_phandle(dn,
 						"mediatek,syscon-wakeup");
 	if (IS_ERR(ssusb->pericfg)) {
@@ -103,36 +80,6 @@ int ssusb_wakeup_of_property_parse(struct ssusb_mtk *ssusb,
 	return 0;
 }
 
-static int ssusb_wakeup_clks_enable(struct ssusb_mtk *ssusb)
-{
-	int ret;
-
-	ret = clk_prepare_enable(ssusb->wk_deb_p0);
-	if (ret) {
-		dev_err(ssusb->dev, "failed to enable wk_deb_p0\n");
-		goto usb_p0_err;
-	}
-
-	ret = clk_prepare_enable(ssusb->wk_deb_p1);
-	if (ret) {
-		dev_err(ssusb->dev, "failed to enable wk_deb_p1\n");
-		goto usb_p1_err;
-	}
-
-	return 0;
-
-usb_p1_err:
-	clk_disable_unprepare(ssusb->wk_deb_p0);
-usb_p0_err:
-	return -EINVAL;
-}
-
-static void ssusb_wakeup_clks_disable(struct ssusb_mtk *ssusb)
-{
-	clk_disable_unprepare(ssusb->wk_deb_p1);
-	clk_disable_unprepare(ssusb->wk_deb_p0);
-}
-
 static void host_ports_num_get(struct ssusb_mtk *ssusb)
 {
 	u32 xhci_cap;
@@ -151,6 +98,7 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb)
 	void __iomem *ibase = ssusb->ippc_base;
 	int num_u3p = ssusb->u3_ports;
 	int num_u2p = ssusb->u2_ports;
+	int u3_ports_disabed;
 	u32 check_clk;
 	u32 value;
 	int i;
@@ -158,8 +106,14 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb)
 	/* power on host ip */
 	mtu3_clrbits(ibase, U3D_SSUSB_IP_PW_CTRL1, SSUSB_IP_HOST_PDN);
 
-	/* power on and enable all u3 ports */
+	/* power on and enable u3 ports except skipped ones */
+	u3_ports_disabed = 0;
 	for (i = 0; i < num_u3p; i++) {
+		if ((0x1 << i) & ssusb->u3p_dis_msk) {
+			u3_ports_disabed++;
+			continue;
+		}
+
 		value = mtu3_readl(ibase, SSUSB_U3_CTRL(i));
 		value &= ~(SSUSB_U3_PORT_PDN | SSUSB_U3_PORT_DIS);
 		value |= SSUSB_U3_PORT_HOST_SEL;
@@ -175,7 +129,7 @@ int ssusb_host_enable(struct ssusb_mtk *ssusb)
 	}
 
 	check_clk = SSUSB_XHCI_RST_B_STS;
-	if (num_u3p)
+	if (num_u3p > u3_ports_disabed)
 		check_clk = SSUSB_U3_MAC_RST_B_STS;
 
 	return ssusb_check_clocks(ssusb, check_clk);
@@ -190,8 +144,11 @@ int ssusb_host_disable(struct ssusb_mtk *ssusb, bool suspend)
 	int ret;
 	int i;
 
-	/* power down and disable all u3 ports */
+	/* power down and disable u3 ports except skipped ones */
 	for (i = 0; i < num_u3p; i++) {
+		if ((0x1 << i) & ssusb->u3p_dis_msk)
+			continue;
+
 		value = mtu3_readl(ibase, SSUSB_U3_CTRL(i));
 		value |= SSUSB_U3_PORT_PDN;
 		value |= suspend ? 0 : SSUSB_U3_PORT_DIS;
@@ -223,6 +180,8 @@ int ssusb_host_disable(struct ssusb_mtk *ssusb, bool suspend)
 
 static void ssusb_host_setup(struct ssusb_mtk *ssusb)
 {
+	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
+
 	host_ports_num_get(ssusb);
 
 	/*
@@ -231,6 +190,9 @@ static void ssusb_host_setup(struct ssusb_mtk *ssusb)
 	 */
 	ssusb_host_enable(ssusb);
 
+	if (otg_sx->manual_drd_enabled)
+		ssusb_set_force_mode(ssusb, MTU3_DR_FORCE_HOST);
+
 	/* if port0 supports dual-role, works as host mode by default */
 	ssusb_set_vbus(&ssusb->otg_switch, 1);
 }
@@ -276,19 +238,14 @@ void ssusb_host_exit(struct ssusb_mtk *ssusb)
 
 int ssusb_wakeup_enable(struct ssusb_mtk *ssusb)
 {
-	int ret = 0;
-
-	if (ssusb->wakeup_en) {
-		ret = ssusb_wakeup_clks_enable(ssusb);
+	if (ssusb->wakeup_en)
 		ssusb_wakeup_ip_sleep_en(ssusb);
-	}
-	return ret;
+
+	return 0;
 }
 
 void ssusb_wakeup_disable(struct ssusb_mtk *ssusb)
 {
-	if (ssusb->wakeup_en) {
+	if (ssusb->wakeup_en)
 		ssusb_wakeup_ip_sleep_dis(ssusb);
-		ssusb_wakeup_clks_disable(ssusb);
-	}
 }
diff --git a/drivers/usb/mtu3/mtu3_hw_regs.h b/drivers/usb/mtu3/mtu3_hw_regs.h
index 06b29664470f..6ee371478d89 100644
--- a/drivers/usb/mtu3/mtu3_hw_regs.h
+++ b/drivers/usb/mtu3/mtu3_hw_regs.h
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_hw_regs.h - MediaTek USB3 DRD register and field definitions
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef _SSUSB_HW_REGS_H_
@@ -58,6 +49,8 @@
 #define U3D_QCR1		(SSUSB_DEV_BASE + 0x0404)
 #define U3D_QCR2		(SSUSB_DEV_BASE + 0x0408)
 #define U3D_QCR3		(SSUSB_DEV_BASE + 0x040C)
+#define U3D_TXQHIAR1		(SSUSB_DEV_BASE + 0x0484)
+#define U3D_RXQHIAR1		(SSUSB_DEV_BASE + 0x04C4)
 
 #define U3D_TXQCSR1		(SSUSB_DEV_BASE + 0x0510)
 #define U3D_TXQSAR1		(SSUSB_DEV_BASE + 0x0514)
@@ -189,6 +182,13 @@
 #define QMU_RX_COZ(x)		(BIT(16) << (x))
 #define QMU_RX_ZLP(x)		(BIT(0) << (x))
 
+/* U3D_TXQHIAR1 */
+/* U3D_RXQHIAR1 */
+#define QMU_LAST_DONE_PTR_HI(x)	(((x) >> 16) & 0xf)
+#define QMU_CUR_GPD_ADDR_HI(x)	(((x) >> 8) & 0xf)
+#define QMU_START_ADDR_HI_MSK	GENMASK(3, 0)
+#define QMU_START_ADDR_HI(x)	(((x) & 0xf) << 0)
+
 /* U3D_TXQCSR1 */
 /* U3D_RXQCSR1 */
 #define QMU_Q_ACTIVE		BIT(15)
@@ -225,6 +225,7 @@
 #define CAP_TX_EP_NUM(x)	((x) & 0x1f)
 
 /* U3D_MISC_CTRL */
+#define DMA_ADDR_36BIT		BIT(31)
 #define VBUS_ON			BIT(1)
 #define VBUS_FRC_EN		BIT(0)
 
@@ -457,11 +458,14 @@
 #define SSUSB_VBUS_CHG_INT_B_EN		BIT(6)
 
 /* U3D_SSUSB_U3_CTRL_0P */
+#define SSUSB_U3_PORT_SSP_SPEED	BIT(9)
 #define SSUSB_U3_PORT_HOST_SEL		BIT(2)
 #define SSUSB_U3_PORT_PDN		BIT(1)
 #define SSUSB_U3_PORT_DIS		BIT(0)
 
 /* U3D_SSUSB_U2_CTRL_0P */
+#define SSUSB_U2_PORT_RG_IDDIG		BIT(12)
+#define SSUSB_U2_PORT_FORCE_IDDIG	BIT(11)
 #define SSUSB_U2_PORT_VBUSVALID	BIT(9)
 #define SSUSB_U2_PORT_OTG_SEL		BIT(7)
 #define SSUSB_U2_PORT_HOST		BIT(2)
diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
index 088e3e685c4f..3650fd11fc49 100644
--- a/drivers/usb/mtu3/mtu3_plat.c
+++ b/drivers/usb/mtu3/mtu3_plat.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/clk.h>
@@ -21,7 +12,6 @@
 #include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/pinctrl/consumer.h>
 #include <linux/platform_device.h>
 
 #include "mtu3.h"
@@ -110,15 +100,9 @@ static void ssusb_phy_power_off(struct ssusb_mtk *ssusb)
 		phy_power_off(ssusb->phys[i]);
 }
 
-static int ssusb_rscs_init(struct ssusb_mtk *ssusb)
+static int ssusb_clks_enable(struct ssusb_mtk *ssusb)
 {
-	int ret = 0;
-
-	ret = regulator_enable(ssusb->vusb33);
-	if (ret) {
-		dev_err(ssusb->dev, "failed to enable vusb33\n");
-		goto vusb33_err;
-	}
+	int ret;
 
 	ret = clk_prepare_enable(ssusb->sys_clk);
 	if (ret) {
@@ -132,6 +116,52 @@ static int ssusb_rscs_init(struct ssusb_mtk *ssusb)
 		goto ref_clk_err;
 	}
 
+	ret = clk_prepare_enable(ssusb->mcu_clk);
+	if (ret) {
+		dev_err(ssusb->dev, "failed to enable mcu_clk\n");
+		goto mcu_clk_err;
+	}
+
+	ret = clk_prepare_enable(ssusb->dma_clk);
+	if (ret) {
+		dev_err(ssusb->dev, "failed to enable dma_clk\n");
+		goto dma_clk_err;
+	}
+
+	return 0;
+
+dma_clk_err:
+	clk_disable_unprepare(ssusb->mcu_clk);
+mcu_clk_err:
+	clk_disable_unprepare(ssusb->ref_clk);
+ref_clk_err:
+	clk_disable_unprepare(ssusb->sys_clk);
+sys_clk_err:
+	return ret;
+}
+
+static void ssusb_clks_disable(struct ssusb_mtk *ssusb)
+{
+	clk_disable_unprepare(ssusb->dma_clk);
+	clk_disable_unprepare(ssusb->mcu_clk);
+	clk_disable_unprepare(ssusb->ref_clk);
+	clk_disable_unprepare(ssusb->sys_clk);
+}
+
+static int ssusb_rscs_init(struct ssusb_mtk *ssusb)
+{
+	int ret = 0;
+
+	ret = regulator_enable(ssusb->vusb33);
+	if (ret) {
+		dev_err(ssusb->dev, "failed to enable vusb33\n");
+		goto vusb33_err;
+	}
+
+	ret = ssusb_clks_enable(ssusb);
+	if (ret)
+		goto clks_err;
+
 	ret = ssusb_phy_init(ssusb);
 	if (ret) {
 		dev_err(ssusb->dev, "failed to init phy\n");
@@ -149,20 +179,16 @@ static int ssusb_rscs_init(struct ssusb_mtk *ssusb)
 phy_err:
 	ssusb_phy_exit(ssusb);
 phy_init_err:
-	clk_disable_unprepare(ssusb->ref_clk);
-ref_clk_err:
-	clk_disable_unprepare(ssusb->sys_clk);
-sys_clk_err:
+	ssusb_clks_disable(ssusb);
+clks_err:
 	regulator_disable(ssusb->vusb33);
 vusb33_err:
-
 	return ret;
 }
 
 static void ssusb_rscs_exit(struct ssusb_mtk *ssusb)
 {
-	clk_disable_unprepare(ssusb->sys_clk);
-	clk_disable_unprepare(ssusb->ref_clk);
+	ssusb_clks_disable(ssusb);
 	regulator_disable(ssusb->vusb33);
 	ssusb_phy_power_off(ssusb);
 	ssusb_phy_exit(ssusb);
@@ -176,31 +202,17 @@ static void ssusb_ip_sw_reset(struct ssusb_mtk *ssusb)
 	mtu3_clrbits(ssusb->ippc_base, U3D_SSUSB_IP_PW_CTRL0, SSUSB_IP_SW_RST);
 }
 
-static int get_iddig_pinctrl(struct ssusb_mtk *ssusb)
+/* ignore the error if the clock does not exist */
+static struct clk *get_optional_clk(struct device *dev, const char *id)
 {
-	struct otg_switch_mtk *otg_sx = &ssusb->otg_switch;
-
-	otg_sx->id_pinctrl = devm_pinctrl_get(ssusb->dev);
-	if (IS_ERR(otg_sx->id_pinctrl)) {
-		dev_err(ssusb->dev, "Cannot find id pinctrl!\n");
-		return PTR_ERR(otg_sx->id_pinctrl);
-	}
-
-	otg_sx->id_float =
-		pinctrl_lookup_state(otg_sx->id_pinctrl, "id_float");
-	if (IS_ERR(otg_sx->id_float)) {
-		dev_err(ssusb->dev, "Cannot find pinctrl id_float!\n");
-		return PTR_ERR(otg_sx->id_float);
-	}
+	struct clk *opt_clk;
 
-	otg_sx->id_ground =
-		pinctrl_lookup_state(otg_sx->id_pinctrl, "id_ground");
-	if (IS_ERR(otg_sx->id_ground)) {
-		dev_err(ssusb->dev, "Cannot find pinctrl id_ground!\n");
-		return PTR_ERR(otg_sx->id_ground);
-	}
+	opt_clk = devm_clk_get(dev, id);
+	/* ignore error number except EPROBE_DEFER */
+	if (IS_ERR(opt_clk) && (PTR_ERR(opt_clk) != -EPROBE_DEFER))
+		opt_clk = NULL;
 
-	return 0;
+	return opt_clk;
 }
 
 static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
@@ -225,18 +237,17 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
 		return PTR_ERR(ssusb->sys_clk);
 	}
 
-	/*
-	 * reference clock is usually a "fixed-clock", make it optional
-	 * for backward compatibility and ignore the error if it does
-	 * not exist.
-	 */
-	ssusb->ref_clk = devm_clk_get(dev, "ref_ck");
-	if (IS_ERR(ssusb->ref_clk)) {
-		if (PTR_ERR(ssusb->ref_clk) == -EPROBE_DEFER)
-			return -EPROBE_DEFER;
+	ssusb->ref_clk = get_optional_clk(dev, "ref_ck");
+	if (IS_ERR(ssusb->ref_clk))
+		return PTR_ERR(ssusb->ref_clk);
 
-		ssusb->ref_clk = NULL;
-	}
+	ssusb->mcu_clk = get_optional_clk(dev, "mcu_ck");
+	if (IS_ERR(ssusb->mcu_clk))
+		return PTR_ERR(ssusb->mcu_clk);
+
+	ssusb->dma_clk = get_optional_clk(dev, "dma_ck");
+	if (IS_ERR(ssusb->dma_clk))
+		return PTR_ERR(ssusb->dma_clk);
 
 	ssusb->num_phys = of_count_phandle_with_args(node,
 			"phys", "#phy-cells");
@@ -263,10 +274,8 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
 		return PTR_ERR(ssusb->ippc_base);
 
 	ssusb->dr_mode = usb_get_dr_mode(dev);
-	if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN) {
-		dev_err(dev, "dr_mode is error\n");
-		return -EINVAL;
-	}
+	if (ssusb->dr_mode == USB_DR_MODE_UNKNOWN)
+		ssusb->dr_mode = USB_DR_MODE_OTG;
 
 	if (ssusb->dr_mode == USB_DR_MODE_PERIPHERAL)
 		return 0;
@@ -276,10 +285,10 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
 	if (ret)
 		return ret;
 
-	if (ssusb->dr_mode != USB_DR_MODE_OTG)
-		return 0;
+	/* optional property, ignore the error if it does not exist */
+	of_property_read_u32(node, "mediatek,u3p-dis-msk",
+			     &ssusb->u3p_dis_msk);
 
-	/* if dual-role mode is supported */
 	vbus = devm_regulator_get(&pdev->dev, "vbus");
 	if (IS_ERR(vbus)) {
 		dev_err(dev, "failed to get vbus\n");
@@ -287,6 +296,10 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
 	}
 	otg_sx->vbus = vbus;
 
+	if (ssusb->dr_mode == USB_DR_MODE_HOST)
+		return 0;
+
+	/* if dual-role mode is supported */
 	otg_sx->is_u3_drd = of_property_read_bool(node, "mediatek,usb3-drd");
 	otg_sx->manual_drd_enabled =
 		of_property_read_bool(node, "enable-manual-drd");
@@ -297,15 +310,11 @@ static int get_ssusb_rscs(struct platform_device *pdev, struct ssusb_mtk *ssusb)
 			dev_err(ssusb->dev, "couldn't get extcon device\n");
 			return -EPROBE_DEFER;
 		}
-		if (otg_sx->manual_drd_enabled) {
-			ret = get_iddig_pinctrl(ssusb);
-			if (ret)
-				return ret;
-		}
 	}
 
-	dev_info(dev, "dr_mode: %d, is_u3_dr: %d\n",
-		ssusb->dr_mode, otg_sx->is_u3_drd);
+	dev_info(dev, "dr_mode: %d, is_u3_dr: %d, u3p_dis_msk: %x, drd: %s\n",
+		ssusb->dr_mode, otg_sx->is_u3_drd, ssusb->u3p_dis_msk,
+		otg_sx->manual_drd_enabled ? "manual" : "auto");
 
 	return 0;
 }
@@ -447,8 +456,7 @@ static int __maybe_unused mtu3_suspend(struct device *dev)
 
 	ssusb_host_disable(ssusb, true);
 	ssusb_phy_power_off(ssusb);
-	clk_disable_unprepare(ssusb->sys_clk);
-	clk_disable_unprepare(ssusb->ref_clk);
+	ssusb_clks_disable(ssusb);
 	ssusb_wakeup_enable(ssusb);
 
 	return 0;
@@ -466,27 +474,21 @@ static int __maybe_unused mtu3_resume(struct device *dev)
 		return 0;
 
 	ssusb_wakeup_disable(ssusb);
-	ret = clk_prepare_enable(ssusb->sys_clk);
-	if (ret)
-		goto err_sys_clk;
-
-	ret = clk_prepare_enable(ssusb->ref_clk);
+	ret = ssusb_clks_enable(ssusb);
 	if (ret)
-		goto err_ref_clk;
+		goto clks_err;
 
 	ret = ssusb_phy_power_on(ssusb);
 	if (ret)
-		goto err_power_on;
+		goto phy_err;
 
 	ssusb_host_enable(ssusb);
 
 	return 0;
 
-err_power_on:
-	clk_disable_unprepare(ssusb->ref_clk);
-err_ref_clk:
-	clk_disable_unprepare(ssusb->sys_clk);
-err_sys_clk:
+phy_err:
+	ssusb_clks_disable(ssusb);
+clks_err:
 	return ret;
 }
 
diff --git a/drivers/usb/mtu3/mtu3_qmu.c b/drivers/usb/mtu3/mtu3_qmu.c
index 7d9ba8a52368..ff62ba232177 100644
--- a/drivers/usb/mtu3/mtu3_qmu.c
+++ b/drivers/usb/mtu3/mtu3_qmu.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_qmu.c - Queue Management Unit driver for device controller
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 /*
@@ -40,7 +31,58 @@
 #define GPD_FLAGS_IOC	BIT(7)
 
 #define GPD_EXT_FLAG_ZLP	BIT(5)
+#define GPD_EXT_NGP(x)		(((x) & 0xf) << 4)
+#define GPD_EXT_BUF(x)		(((x) & 0xf) << 0)
+
+#define HILO_GEN64(hi, lo) (((u64)(hi) << 32) + (lo))
+#define HILO_DMA(hi, lo)	\
+	((dma_addr_t)HILO_GEN64((le32_to_cpu(hi)), (le32_to_cpu(lo))))
+
+static dma_addr_t read_txq_cur_addr(void __iomem *mbase, u8 epnum)
+{
+	u32 txcpr;
+	u32 txhiar;
+
+	txcpr = mtu3_readl(mbase, USB_QMU_TQCPR(epnum));
+	txhiar = mtu3_readl(mbase, USB_QMU_TQHIAR(epnum));
 
+	return HILO_DMA(QMU_CUR_GPD_ADDR_HI(txhiar), txcpr);
+}
+
+static dma_addr_t read_rxq_cur_addr(void __iomem *mbase, u8 epnum)
+{
+	u32 rxcpr;
+	u32 rxhiar;
+
+	rxcpr = mtu3_readl(mbase, USB_QMU_RQCPR(epnum));
+	rxhiar = mtu3_readl(mbase, USB_QMU_RQHIAR(epnum));
+
+	return HILO_DMA(QMU_CUR_GPD_ADDR_HI(rxhiar), rxcpr);
+}
+
+static void write_txq_start_addr(void __iomem *mbase, u8 epnum, dma_addr_t dma)
+{
+	u32 tqhiar;
+
+	mtu3_writel(mbase, USB_QMU_TQSAR(epnum),
+		    cpu_to_le32(lower_32_bits(dma)));
+	tqhiar = mtu3_readl(mbase, USB_QMU_TQHIAR(epnum));
+	tqhiar &= ~QMU_START_ADDR_HI_MSK;
+	tqhiar |= QMU_START_ADDR_HI(upper_32_bits(dma));
+	mtu3_writel(mbase, USB_QMU_TQHIAR(epnum), tqhiar);
+}
+
+static void write_rxq_start_addr(void __iomem *mbase, u8 epnum, dma_addr_t dma)
+{
+	u32 rqhiar;
+
+	mtu3_writel(mbase, USB_QMU_RQSAR(epnum),
+		    cpu_to_le32(lower_32_bits(dma)));
+	rqhiar = mtu3_readl(mbase, USB_QMU_RQHIAR(epnum));
+	rqhiar &= ~QMU_START_ADDR_HI_MSK;
+	rqhiar |= QMU_START_ADDR_HI(upper_32_bits(dma));
+	mtu3_writel(mbase, USB_QMU_RQHIAR(epnum), rqhiar);
+}
 
 static struct qmu_gpd *gpd_dma_to_virt(struct mtu3_gpd_ring *ring,
 		dma_addr_t dma_addr)
@@ -193,21 +235,27 @@ static int mtu3_prepare_tx_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq)
 	struct mtu3_gpd_ring *ring = &mep->gpd_ring;
 	struct qmu_gpd *gpd = ring->enqueue;
 	struct usb_request *req = &mreq->request;
+	dma_addr_t enq_dma;
+	u16 ext_addr;
 
 	/* set all fields to zero as default value */
 	memset(gpd, 0, sizeof(*gpd));
 
-	gpd->buffer = cpu_to_le32((u32)req->dma);
+	gpd->buffer = cpu_to_le32(lower_32_bits(req->dma));
+	ext_addr = GPD_EXT_BUF(upper_32_bits(req->dma));
 	gpd->buf_len = cpu_to_le16(req->length);
 	gpd->flag |= GPD_FLAGS_IOC;
 
 	/* get the next GPD */
 	enq = advance_enq_gpd(ring);
-	dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p\n",
-		mep->epnum, gpd, enq);
+	enq_dma = gpd_virt_to_dma(ring, enq);
+	dev_dbg(mep->mtu->dev, "TX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
+		mep->epnum, gpd, enq, &enq_dma);
 
 	enq->flag &= ~GPD_FLAGS_HWO;
-	gpd->next_gpd = cpu_to_le32((u32)gpd_virt_to_dma(ring, enq));
+	gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
+	ext_addr |= GPD_EXT_NGP(upper_32_bits(enq_dma));
+	gpd->tx_ext_addr = cpu_to_le16(ext_addr);
 
 	if (req->zero)
 		gpd->ext_flag |= GPD_EXT_FLAG_ZLP;
@@ -226,21 +274,27 @@ static int mtu3_prepare_rx_gpd(struct mtu3_ep *mep, struct mtu3_request *mreq)
 	struct mtu3_gpd_ring *ring = &mep->gpd_ring;
 	struct qmu_gpd *gpd = ring->enqueue;
 	struct usb_request *req = &mreq->request;
+	dma_addr_t enq_dma;
+	u16 ext_addr;
 
 	/* set all fields to zero as default value */
 	memset(gpd, 0, sizeof(*gpd));
 
-	gpd->buffer = cpu_to_le32((u32)req->dma);
+	gpd->buffer = cpu_to_le32(lower_32_bits(req->dma));
+	ext_addr = GPD_EXT_BUF(upper_32_bits(req->dma));
 	gpd->data_buf_len = cpu_to_le16(req->length);
 	gpd->flag |= GPD_FLAGS_IOC;
 
 	/* get the next GPD */
 	enq = advance_enq_gpd(ring);
-	dev_dbg(mep->mtu->dev, "RX-EP%d queue gpd=%p, enq=%p\n",
-		mep->epnum, gpd, enq);
+	enq_dma = gpd_virt_to_dma(ring, enq);
+	dev_dbg(mep->mtu->dev, "RX-EP%d queue gpd=%p, enq=%p, qdma=%pad\n",
+		mep->epnum, gpd, enq, &enq_dma);
 
 	enq->flag &= ~GPD_FLAGS_HWO;
-	gpd->next_gpd = cpu_to_le32((u32)gpd_virt_to_dma(ring, enq));
+	gpd->next_gpd = cpu_to_le32(lower_32_bits(enq_dma));
+	ext_addr |= GPD_EXT_NGP(upper_32_bits(enq_dma));
+	gpd->rx_ext_addr = cpu_to_le16(ext_addr);
 	gpd->chksum = qmu_calc_checksum((u8 *)gpd);
 	gpd->flag |= GPD_FLAGS_HWO;
 
@@ -267,8 +321,8 @@ int mtu3_qmu_start(struct mtu3_ep *mep)
 
 	if (mep->is_in) {
 		/* set QMU start address */
-		mtu3_writel(mbase, USB_QMU_TQSAR(mep->epnum), ring->dma);
-		mtu3_setbits(mbase, MU3D_EP_TXCR0(mep->epnum), TX_DMAREQEN);
+		write_txq_start_addr(mbase, epnum, ring->dma);
+		mtu3_setbits(mbase, MU3D_EP_TXCR0(epnum), TX_DMAREQEN);
 		mtu3_setbits(mbase, U3D_QCR0, QMU_TX_CS_EN(epnum));
 		/* send zero length packet according to ZLP flag in GPD */
 		mtu3_setbits(mbase, U3D_QCR1, QMU_TX_ZLP(epnum));
@@ -282,8 +336,8 @@ int mtu3_qmu_start(struct mtu3_ep *mep)
 		mtu3_writel(mbase, USB_QMU_TQCSR(epnum), QMU_Q_START);
 
 	} else {
-		mtu3_writel(mbase, USB_QMU_RQSAR(mep->epnum), ring->dma);
-		mtu3_setbits(mbase, MU3D_EP_RXCR0(mep->epnum), RX_DMAREQEN);
+		write_rxq_start_addr(mbase, epnum, ring->dma);
+		mtu3_setbits(mbase, MU3D_EP_RXCR0(epnum), RX_DMAREQEN);
 		mtu3_setbits(mbase, U3D_QCR0, QMU_RX_CS_EN(epnum));
 		/* don't expect ZLP */
 		mtu3_clrbits(mbase, U3D_QCR3, QMU_RX_ZLP(epnum));
@@ -353,9 +407,9 @@ static void qmu_tx_zlp_error_handler(struct mtu3 *mtu, u8 epnum)
 	struct mtu3_gpd_ring *ring = &mep->gpd_ring;
 	void __iomem *mbase = mtu->mac_base;
 	struct qmu_gpd *gpd_current = NULL;
-	dma_addr_t gpd_dma = mtu3_readl(mbase, USB_QMU_TQCPR(epnum));
 	struct usb_request *req = NULL;
 	struct mtu3_request *mreq;
+	dma_addr_t cur_gpd_dma;
 	u32 txcsr = 0;
 	int ret;
 
@@ -365,7 +419,8 @@ static void qmu_tx_zlp_error_handler(struct mtu3 *mtu, u8 epnum)
 	else
 		return;
 
-	gpd_current = gpd_dma_to_virt(ring, gpd_dma);
+	cur_gpd_dma = read_txq_cur_addr(mbase, epnum);
+	gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma);
 
 	if (le16_to_cpu(gpd_current->buf_len) != 0) {
 		dev_err(mtu->dev, "TX EP%d buffer length error(!=0)\n", epnum);
@@ -408,12 +463,13 @@ static void qmu_done_tx(struct mtu3 *mtu, u8 epnum)
 	void __iomem *mbase = mtu->mac_base;
 	struct qmu_gpd *gpd = ring->dequeue;
 	struct qmu_gpd *gpd_current = NULL;
-	dma_addr_t gpd_dma = mtu3_readl(mbase, USB_QMU_TQCPR(epnum));
 	struct usb_request *request = NULL;
 	struct mtu3_request *mreq;
+	dma_addr_t cur_gpd_dma;
 
 	/*transfer phy address got from QMU register to virtual address */
-	gpd_current = gpd_dma_to_virt(ring, gpd_dma);
+	cur_gpd_dma = read_txq_cur_addr(mbase, epnum);
+	gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma);
 
 	dev_dbg(mtu->dev, "%s EP%d, last=%p, current=%p, enq=%p\n",
 		__func__, epnum, gpd, gpd_current, ring->enqueue);
@@ -446,11 +502,12 @@ static void qmu_done_rx(struct mtu3 *mtu, u8 epnum)
 	void __iomem *mbase = mtu->mac_base;
 	struct qmu_gpd *gpd = ring->dequeue;
 	struct qmu_gpd *gpd_current = NULL;
-	dma_addr_t gpd_dma = mtu3_readl(mbase, USB_QMU_RQCPR(epnum));
 	struct usb_request *req = NULL;
 	struct mtu3_request *mreq;
+	dma_addr_t cur_gpd_dma;
 
-	gpd_current = gpd_dma_to_virt(ring, gpd_dma);
+	cur_gpd_dma = read_rxq_cur_addr(mbase, epnum);
+	gpd_current = gpd_dma_to_virt(ring, cur_gpd_dma);
 
 	dev_dbg(mtu->dev, "%s EP%d, last=%p, current=%p, enq=%p\n",
 		__func__, epnum, gpd, gpd_current, ring->enqueue);
diff --git a/drivers/usb/mtu3/mtu3_qmu.h b/drivers/usb/mtu3/mtu3_qmu.h
index 4dafa16bf120..81f5151a55ed 100644
--- a/drivers/usb/mtu3/mtu3_qmu.h
+++ b/drivers/usb/mtu3/mtu3_qmu.h
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mtu3_qmu.h - Queue Management Unit driver header
  *
  * Copyright (C) 2016 MediaTek Inc.
  *
  * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef __MTK_QMU_H__
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index 689d42aba8a9..79d4d5439164 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # for USB OTG silicon based on Mentor Graphics INVENTRA designs
 #
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 02fbb4fe3745..0ad664efda6b 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  * Texas Instruments AM35x "glue layer"
@@ -8,23 +9,6 @@
  * Copyright (c) 2008-2009, MontaVista Software, Inc. <source@mvista.com>
  *
  * This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
@@ -133,11 +117,9 @@ static void am35x_musb_set_vbus(struct musb *musb, int is_on)
 
 #define	POLL_SECONDS	2
 
-static struct timer_list otg_workaround;
-
-static void otg_timer(unsigned long _musb)
+static void otg_timer(struct timer_list *t)
 {
-	struct musb		*musb = (void *)_musb;
+	struct musb		*musb = from_timer(musb, t, dev_timer);
 	void __iomem		*mregs = musb->mregs;
 	u8			devctl;
 	unsigned long		flags;
@@ -173,7 +155,7 @@ static void otg_timer(unsigned long _musb)
 	case OTG_STATE_B_IDLE:
 		devctl = musb_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 		else
 			musb->xceiv->otg->state = OTG_STATE_A_IDLE;
 		break;
@@ -195,12 +177,12 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
 				musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) {
 		dev_dbg(musb->controller, "%s active, deleting timer\n",
 			usb_otg_state_string(musb->xceiv->otg->state));
-		del_timer(&otg_workaround);
+		del_timer(&musb->dev_timer);
 		last_timer = jiffies;
 		return;
 	}
 
-	if (time_after(last_timer, timeout) && timer_pending(&otg_workaround)) {
+	if (time_after(last_timer, timeout) && timer_pending(&musb->dev_timer)) {
 		dev_dbg(musb->controller, "Longer idle timer already pending, ignoring...\n");
 		return;
 	}
@@ -209,7 +191,7 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
 	dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
 		usb_otg_state_string(musb->xceiv->otg->state),
 		jiffies_to_msecs(timeout - jiffies));
-	mod_timer(&otg_workaround, timeout);
+	mod_timer(&musb->dev_timer, timeout);
 }
 
 static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
@@ -278,14 +260,14 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
 			 */
 			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
 		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
 			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
-			del_timer(&otg_workaround);
+			del_timer(&musb->dev_timer);
 		} else {
 			musb->is_active = 0;
 			MUSB_DEV_MODE(musb);
@@ -324,7 +306,7 @@ eoi:
 
 	/* Poll for ID change */
 	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
-		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+		mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
 
@@ -365,7 +347,7 @@ static int am35x_musb_init(struct musb *musb)
 	if (IS_ERR_OR_NULL(musb->xceiv))
 		return -EPROBE_DEFER;
 
-	setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+	timer_setup(&musb->dev_timer, otg_timer, 0);
 
 	/* Reset the musb */
 	if (data->reset)
@@ -395,7 +377,7 @@ static int am35x_musb_exit(struct musb *musb)
 	struct musb_hdrc_platform_data *plat = dev_get_platdata(dev);
 	struct omap_musb_board_data *data = plat->board_data;
 
-	del_timer_sync(&otg_workaround);
+	del_timer_sync(&musb->dev_timer);
 
 	/* Shutdown the on-chip PHY and its PLL. */
 	if (data->set_phy_power)
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 4418574a36a1..0a98dcd66d19 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -1,11 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * MUSB OTG controller driver for Blackfin Processors
  *
  * Copyright 2006-2008 Analog Devices Inc.
  *
  * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
  */
 
 #include <linux/module.h>
@@ -223,7 +222,7 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
 	if ((musb->xceiv->otg->state == OTG_STATE_B_IDLE
 		|| musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON) ||
 		(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
-		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
+		mod_timer(&musb->dev_timer, jiffies + TIMER_DELAY);
 		musb->a_wait_bcon = TIMER_DELAY;
 	}
 
@@ -232,9 +231,9 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
 	return retval;
 }
 
-static void musb_conn_timer_handler(unsigned long _musb)
+static void musb_conn_timer_handler(struct timer_list *t)
 {
-	struct musb *musb = (void *)_musb;
+	struct musb *musb = from_timer(musb, t, dev_timer);
 	unsigned long flags;
 	u16 val;
 	static u8 toggle;
@@ -266,7 +265,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
 			musb_writeb(musb->mregs, MUSB_INTRUSB, val);
 			musb->xceiv->otg->state = OTG_STATE_B_IDLE;
 		}
-		mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
+		mod_timer(&musb->dev_timer, jiffies + TIMER_DELAY);
 		break;
 	case OTG_STATE_B_IDLE:
 		/*
@@ -310,7 +309,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
 			 * shortening it, if accelerating A-plug detection
 			 * is needed in OTG mode.
 			 */
-			mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY / 4);
+			mod_timer(&musb->dev_timer, jiffies + TIMER_DELAY / 4);
 		}
 		break;
 	default:
@@ -445,8 +444,7 @@ static int bfin_musb_init(struct musb *musb)
 
 	bfin_musb_reg_init(musb);
 
-	setup_timer(&musb_conn_timer, musb_conn_timer_handler,
-			(unsigned long) musb);
+	timer_setup(&musb->dev_timer, musb_conn_timer_handler, 0);
 
 	musb->xceiv->set_power = bfin_musb_set_power;
 
diff --git a/drivers/usb/musb/blackfin.h b/drivers/usb/musb/blackfin.h
index c84dae546dc6..5b149915b0f8 100644
--- a/drivers/usb/musb/blackfin.h
+++ b/drivers/usb/musb/blackfin.h
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2007 by Analog Devices, Inc.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
  */
 
 #ifndef __MUSB_BLACKFIN_H__
@@ -82,6 +78,4 @@ static void dump_fifo_data(u8 *buf, u16 len)
 /* Almost 1 second */
 #define TIMER_DELAY	(1 * HZ)
 
-static struct timer_list musb_conn_timer;
-
 #endif	/* __MUSB_BLACKFIN_H__ */
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index a13bd3625043..b4d6d9bb3239 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2006 by Texas Instruments
  *
diff --git a/drivers/usb/musb/cppi_dma.h b/drivers/usb/musb/cppi_dma.h
index 9bb7c5e45c85..16dd1ed44bb5 100644
--- a/drivers/usb/musb/cppi_dma.h
+++ b/drivers/usb/musb/cppi_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright (C) 2005-2006 by Texas Instruments */
 
 #ifndef _CPPI_DMA_H_
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index df88123274ca..0397606a211b 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Texas Instruments DA8xx/OMAP-L1x "glue layer"
  *
@@ -10,23 +11,6 @@
  * Copyright (c) 2016 Petr Kulhavy <petr@barix.com>
  *
  * This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
@@ -50,10 +34,7 @@
 #define DA8XX_USB_CTRL_REG	0x04
 #define DA8XX_USB_STAT_REG	0x08
 #define DA8XX_USB_EMULATION_REG 0x0c
-#define DA8XX_USB_MODE_REG	0x10	/* Transparent, CDC, [Generic] RNDIS */
-#define DA8XX_USB_AUTOREQ_REG	0x14
 #define DA8XX_USB_SRP_FIX_TIME_REG 0x18
-#define DA8XX_USB_TEARDOWN_REG	0x1c
 #define DA8XX_USB_INTR_SRC_REG	0x20
 #define DA8XX_USB_INTR_SRC_SET_REG 0x24
 #define DA8XX_USB_INTR_SRC_CLEAR_REG 0x28
@@ -138,11 +119,9 @@ static void da8xx_musb_set_vbus(struct musb *musb, int is_on)
 
 #define	POLL_SECONDS	2
 
-static struct timer_list otg_workaround;
-
-static void otg_timer(unsigned long _musb)
+static void otg_timer(struct timer_list *t)
 {
-	struct musb		*musb = (void *)_musb;
+	struct musb		*musb = from_timer(musb, t, dev_timer);
 	void __iomem		*mregs = musb->mregs;
 	u8			devctl;
 	unsigned long		flags;
@@ -178,7 +157,7 @@ static void otg_timer(unsigned long _musb)
 		 * VBUSERR got reported during enumeration" cases.
 		 */
 		if (devctl & MUSB_DEVCTL_VBUS) {
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 			break;
 		}
 		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
@@ -201,7 +180,7 @@ static void otg_timer(unsigned long _musb)
 		musb_writeb(mregs, MUSB_DEVCTL, devctl | MUSB_DEVCTL_SESSION);
 		devctl = musb_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 		else
 			musb->xceiv->otg->state = OTG_STATE_A_IDLE;
 		break;
@@ -223,12 +202,12 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
 				musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) {
 		dev_dbg(musb->controller, "%s active, deleting timer\n",
 			usb_otg_state_string(musb->xceiv->otg->state));
-		del_timer(&otg_workaround);
+		del_timer(&musb->dev_timer);
 		last_timer = jiffies;
 		return;
 	}
 
-	if (time_after(last_timer, timeout) && timer_pending(&otg_workaround)) {
+	if (time_after(last_timer, timeout) && timer_pending(&musb->dev_timer)) {
 		dev_dbg(musb->controller, "Longer idle timer already pending, ignoring...\n");
 		return;
 	}
@@ -237,7 +216,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
 	dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
 		usb_otg_state_string(musb->xceiv->otg->state),
 		jiffies_to_msecs(timeout - jiffies));
-	mod_timer(&otg_workaround, timeout);
+	mod_timer(&musb->dev_timer, timeout);
 }
 
 static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
@@ -297,14 +276,14 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 			 */
 			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
 		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
 			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
-			del_timer(&otg_workaround);
+			del_timer(&musb->dev_timer);
 		} else {
 			musb->is_active = 0;
 			MUSB_DEV_MODE(musb);
@@ -331,7 +310,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
 
 	/* Poll for ID change */
 	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
-		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+		mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
 
@@ -393,7 +372,7 @@ static int da8xx_musb_init(struct musb *musb)
 		goto fail;
 	}
 
-	setup_timer(&otg_workaround, otg_timer, (unsigned long)musb);
+	timer_setup(&musb->dev_timer, otg_timer, 0);
 
 	/* Reset the controller */
 	musb_writel(reg_base, DA8XX_USB_CTRL_REG, DA8XX_SOFT_RESET_MASK);
@@ -431,7 +410,7 @@ static int da8xx_musb_exit(struct musb *musb)
 {
 	struct da8xx_glue *glue = dev_get_drvdata(musb->controller->parent);
 
-	del_timer_sync(&otg_workaround);
+	del_timer_sync(&musb->dev_timer);
 
 	phy_power_off(glue->phy);
 	phy_exit(glue->phy);
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 52b491d3d5d8..2ad39dcd2f4c 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -1,24 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2006 by Texas Instruments
  *
  * This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA  02111-1307  USA
- *
  */
 
 #include <linux/module.h>
@@ -199,11 +183,9 @@ static void davinci_musb_set_vbus(struct musb *musb, int is_on)
 
 #define	POLL_SECONDS	2
 
-static struct timer_list otg_workaround;
-
-static void otg_timer(unsigned long _musb)
+static void otg_timer(struct timer_list *t)
 {
-	struct musb		*musb = (void *)_musb;
+	struct musb		*musb = from_timer(musb, t, dev_timer);
 	void __iomem		*mregs = musb->mregs;
 	u8			devctl;
 	unsigned long		flags;
@@ -224,7 +206,7 @@ static void otg_timer(unsigned long _musb)
 		 * VBUSERR got reported during enumeration" cases.
 		 */
 		if (devctl & MUSB_DEVCTL_VBUS) {
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 			break;
 		}
 		musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
@@ -248,7 +230,7 @@ static void otg_timer(unsigned long _musb)
 				devctl | MUSB_DEVCTL_SESSION);
 		devctl = musb_readb(mregs, MUSB_DEVCTL);
 		if (devctl & MUSB_DEVCTL_BDEVICE)
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 		else
 			musb->xceiv->otg->state = OTG_STATE_A_IDLE;
 		break;
@@ -325,14 +307,14 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 			 */
 			musb->int_usb &= ~MUSB_INTR_VBUSERROR;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
-			mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+			mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 			WARNING("VBUS error workaround (delay coming)\n");
 		} else if (drvvbus) {
 			MUSB_HST_MODE(musb);
 			otg->default_a = 1;
 			musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
 			portstate(musb->port1_status |= USB_PORT_STAT_POWER);
-			del_timer(&otg_workaround);
+			del_timer(&musb->dev_timer);
 		} else {
 			musb->is_active = 0;
 			MUSB_DEV_MODE(musb);
@@ -361,7 +343,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
 
 	/* poll for ID change */
 	if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
-		mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
+		mod_timer(&musb->dev_timer, jiffies + POLL_SECONDS * HZ);
 
 	spin_unlock_irqrestore(&musb->lock, flags);
 
@@ -393,7 +375,7 @@ static int davinci_musb_init(struct musb *musb)
 	if (revision == 0)
 		goto fail;
 
-	setup_timer(&otg_workaround, otg_timer, (unsigned long) musb);
+	timer_setup(&musb->dev_timer, otg_timer, 0);
 
 	davinci_musb_source_power(musb, 0, 1);
 
@@ -443,7 +425,7 @@ unregister:
 
 static int davinci_musb_exit(struct musb *musb)
 {
-	del_timer_sync(&otg_workaround);
+	del_timer_sync(&musb->dev_timer);
 
 	/* force VBUS off */
 	if (cpu_is_davinci_dm355()) {
diff --git a/drivers/usb/musb/davinci.h b/drivers/usb/musb/davinci.h
index 371baa0ee509..e021485c83ae 100644
--- a/drivers/usb/musb/davinci.h
+++ b/drivers/usb/musb/davinci.h
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2006 by Texas Instruments
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
  */
 
 #ifndef __MUSB_HDRDF_H__
diff --git a/drivers/usb/musb/jz4740.c b/drivers/usb/musb/jz4740.c
index 40c68c23d553..04d8b2bc205a 100644
--- a/drivers/usb/musb/jz4740.c
+++ b/drivers/usb/musb/jz4740.c
@@ -1,16 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Ingenic JZ4740 "glue layer"
  *
  * Copyright (C) 2013, Apelete Seketeli <apelete@seketeli.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/clk.h>
diff --git a/drivers/usb/musb/musb_am335x.c b/drivers/usb/musb/musb_am335x.c
index 1e58ed2361cc..5f04f8e3a640 100644
--- a/drivers/usb/musb/musb_am335x.c
+++ b/drivers/usb/musb/musb_am335x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/module.h>
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 029692053dd3..ea5013aa69e2 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver core code
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 /*
@@ -485,9 +460,9 @@ void musb_load_testpacket(struct musb *musb)
 /*
  * Handles OTG hnp timeouts, such as b_ase0_brst
  */
-static void musb_otg_timer_func(unsigned long data)
+static void musb_otg_timer_func(struct timer_list *t)
 {
-	struct musb	*musb = (struct musb *)data;
+	struct musb	*musb = from_timer(musb, t, otg_timer);
 	unsigned long	flags;
 
 	spin_lock_irqsave(&musb->lock, flags);
@@ -767,6 +742,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 		case OTG_STATE_B_IDLE:
 			if (!musb->is_active)
 				break;
+			/* fall through */
 		case OTG_STATE_B_PERIPHERAL:
 			musb_g_suspend(musb);
 			musb->is_active = musb->g.b_hnp_enable;
@@ -906,7 +882,7 @@ b_host:
 	 */
 	if (int_usb & MUSB_INTR_RESET) {
 		handled = IRQ_HANDLED;
-		if (devctl & MUSB_DEVCTL_HM) {
+		if (is_host_active(musb)) {
 			/*
 			 * When BABBLE happens what we can depends on which
 			 * platform MUSB is running, because some platforms
@@ -916,9 +892,7 @@ b_host:
 			 * drop the session.
 			 */
 			dev_err(musb->controller, "Babble\n");
-
-			if (is_host_active(musb))
-				musb_recover_from_babble(musb);
+			musb_recover_from_babble(musb);
 		} else {
 			musb_dbg(musb, "BUS RESET as %s",
 				usb_otg_state_string(musb->xceiv->otg->state));
@@ -1861,22 +1835,22 @@ static void musb_pm_runtime_check_session(struct musb *musb)
 		MUSB_DEVCTL_HR;
 	switch (devctl & ~s) {
 	case MUSB_QUIRK_B_INVALID_VBUS_91:
-		if (musb->quirk_retries--) {
+		if (musb->quirk_retries && !musb->flush_irq_work) {
 			musb_dbg(musb,
 				 "Poll devctl on invalid vbus, assume no session");
 			schedule_delayed_work(&musb->irq_work,
 					      msecs_to_jiffies(1000));
-
+			musb->quirk_retries--;
 			return;
 		}
 		/* fall through */
 	case MUSB_QUIRK_A_DISCONNECT_19:
-		if (musb->quirk_retries--) {
+		if (musb->quirk_retries && !musb->flush_irq_work) {
 			musb_dbg(musb,
 				 "Poll devctl on possible host mode disconnect");
 			schedule_delayed_work(&musb->irq_work,
 					      msecs_to_jiffies(1000));
-
+			musb->quirk_retries--;
 			return;
 		}
 		if (!musb->session)
@@ -2332,7 +2306,7 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	if (status < 0)
 		goto fail3;
 
-	setup_timer(&musb->otg_timer, musb_otg_timer_func, (unsigned long) musb);
+	timer_setup(&musb->otg_timer, musb_otg_timer_func, 0);
 
 	/* attach to the IRQ */
 	if (request_irq(nIrq, musb->isr, IRQF_SHARED, dev_name(dev), musb)) {
@@ -2681,8 +2655,15 @@ static int musb_suspend(struct device *dev)
 
 	musb_platform_disable(musb);
 	musb_disable_interrupts(musb);
+
+	musb->flush_irq_work = true;
+	while (flush_delayed_work(&musb->irq_work))
+		;
+	musb->flush_irq_work = false;
+
 	if (!(musb->io.quirks & MUSB_PRESERVE_SESSION))
 		musb_writeb(musb->mregs, MUSB_DEVCTL, 0);
+
 	WARN_ON(!list_empty(&musb->pending_list));
 
 	spin_lock_irqsave(&musb->lock, flags);
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index c748f4ac1154..385841ee6f46 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver defines
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef __MUSB_CORE_H__
@@ -345,6 +320,7 @@ struct musb {
 	struct list_head	pending_list;	/* pending work list */
 
 	struct timer_list	otg_timer;
+	struct timer_list	dev_timer;
 	struct notifier_block	nb;
 
 	struct dma_controller	*dma_controller;
@@ -428,6 +404,8 @@ struct musb {
 	unsigned		test_mode:1;
 	unsigned		softconnect:1;
 
+	unsigned		flush_irq_work:1;
+
 	u8			address;
 	u8			test_mode_nr;
 	u16			ackpend;		/* ep0 */
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index ba255280a624..d0dd4f470bbe 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/device.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
@@ -26,15 +27,28 @@
 
 #define MUSB_DMA_NUM_CHANNELS 15
 
+#define DA8XX_USB_MODE		0x10
+#define DA8XX_USB_AUTOREQ	0x14
+#define DA8XX_USB_TEARDOWN	0x1c
+
+#define DA8XX_DMA_NUM_CHANNELS 4
+
 struct cppi41_dma_controller {
 	struct dma_controller controller;
-	struct cppi41_dma_channel rx_channel[MUSB_DMA_NUM_CHANNELS];
-	struct cppi41_dma_channel tx_channel[MUSB_DMA_NUM_CHANNELS];
+	struct cppi41_dma_channel *rx_channel;
+	struct cppi41_dma_channel *tx_channel;
 	struct hrtimer early_tx;
 	struct list_head early_tx_list;
 	u32 rx_mode;
 	u32 tx_mode;
 	u32 auto_req;
+
+	u32 tdown_reg;
+	u32 autoreq_reg;
+
+	void (*set_dma_mode)(struct cppi41_dma_channel *cppi41_channel,
+			     unsigned int mode);
+	u8 num_channels;
 };
 
 static void save_rx_toggle(struct cppi41_dma_channel *cppi41_channel)
@@ -349,6 +363,32 @@ static void cppi41_set_dma_mode(struct cppi41_dma_channel *cppi41_channel,
 	}
 }
 
+static void da8xx_set_dma_mode(struct cppi41_dma_channel *cppi41_channel,
+		unsigned int mode)
+{
+	struct cppi41_dma_controller *controller = cppi41_channel->controller;
+	struct musb *musb = controller->controller.musb;
+	unsigned int shift;
+	u32 port;
+	u32 new_mode;
+	u32 old_mode;
+
+	old_mode = controller->tx_mode;
+	port = cppi41_channel->port_num;
+
+	shift = (port - 1) * 4;
+	if (!cppi41_channel->is_tx)
+		shift += 16;
+	new_mode = old_mode & ~(3 << shift);
+	new_mode |= mode << shift;
+
+	if (new_mode == old_mode)
+		return;
+	controller->tx_mode = new_mode;
+	musb_writel(musb->ctrl_base, DA8XX_USB_MODE, new_mode);
+}
+
+
 static void cppi41_set_autoreq_mode(struct cppi41_dma_channel *cppi41_channel,
 		unsigned mode)
 {
@@ -364,8 +404,8 @@ static void cppi41_set_autoreq_mode(struct cppi41_dma_channel *cppi41_channel,
 	if (new_mode == old_mode)
 		return;
 	controller->auto_req = new_mode;
-	musb_writel(controller->controller.musb->ctrl_base, USB_CTRL_AUTOREQ,
-		    new_mode);
+	musb_writel(controller->controller.musb->ctrl_base,
+		    controller->autoreq_reg, new_mode);
 }
 
 static bool cppi41_configure_channel(struct dma_channel *channel,
@@ -373,6 +413,7 @@ static bool cppi41_configure_channel(struct dma_channel *channel,
 				dma_addr_t dma_addr, u32 len)
 {
 	struct cppi41_dma_channel *cppi41_channel = channel->private_data;
+	struct cppi41_dma_controller *controller = cppi41_channel->controller;
 	struct dma_chan *dc = cppi41_channel->dc;
 	struct dma_async_tx_descriptor *dma_desc;
 	enum dma_transfer_direction direction;
@@ -398,7 +439,7 @@ static bool cppi41_configure_channel(struct dma_channel *channel,
 			musb_writel(musb->ctrl_base,
 				RNDIS_REG(cppi41_channel->port_num), len);
 			/* gen rndis */
-			cppi41_set_dma_mode(cppi41_channel,
+			controller->set_dma_mode(cppi41_channel,
 					EP_MODE_DMA_GEN_RNDIS);
 
 			/* auto req */
@@ -407,14 +448,15 @@ static bool cppi41_configure_channel(struct dma_channel *channel,
 		} else {
 			musb_writel(musb->ctrl_base,
 					RNDIS_REG(cppi41_channel->port_num), 0);
-			cppi41_set_dma_mode(cppi41_channel,
+			controller->set_dma_mode(cppi41_channel,
 					EP_MODE_DMA_TRANSPARENT);
 			cppi41_set_autoreq_mode(cppi41_channel,
 					EP_MODE_AUTOREQ_NONE);
 		}
 	} else {
 		/* fallback mode */
-		cppi41_set_dma_mode(cppi41_channel, EP_MODE_DMA_TRANSPARENT);
+		controller->set_dma_mode(cppi41_channel,
+				EP_MODE_DMA_TRANSPARENT);
 		cppi41_set_autoreq_mode(cppi41_channel, EP_MODE_AUTOREQ_NONE);
 		len = min_t(u32, packet_sz, len);
 	}
@@ -445,7 +487,7 @@ static struct dma_channel *cppi41_dma_channel_allocate(struct dma_controller *c,
 	struct cppi41_dma_channel *cppi41_channel = NULL;
 	u8 ch_num = hw_ep->epnum - 1;
 
-	if (ch_num >= MUSB_DMA_NUM_CHANNELS)
+	if (ch_num >= controller->num_channels)
 		return NULL;
 
 	if (is_tx)
@@ -581,12 +623,13 @@ static int cppi41_dma_channel_abort(struct dma_channel *channel)
 
 	do {
 		if (is_tx)
-			musb_writel(musb->ctrl_base, USB_TDOWN, tdbit);
+			musb_writel(musb->ctrl_base, controller->tdown_reg,
+				    tdbit);
 		ret = dmaengine_terminate_all(cppi41_channel->dc);
 	} while (ret == -EAGAIN);
 
 	if (is_tx) {
-		musb_writel(musb->ctrl_base, USB_TDOWN, tdbit);
+		musb_writel(musb->ctrl_base, controller->tdown_reg, tdbit);
 
 		csr = musb_readw(epio, MUSB_TXCSR);
 		if (csr & MUSB_TXCSR_TXPKTRDY) {
@@ -604,7 +647,7 @@ static void cppi41_release_all_dma_chans(struct cppi41_dma_controller *ctrl)
 	struct dma_chan *dc;
 	int i;
 
-	for (i = 0; i < MUSB_DMA_NUM_CHANNELS; i++) {
+	for (i = 0; i < ctrl->num_channels; i++) {
 		dc = ctrl->tx_channel[i].dc;
 		if (dc)
 			dma_release_channel(dc);
@@ -656,7 +699,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
 			goto err;
 
 		ret = -EINVAL;
-		if (port > MUSB_DMA_NUM_CHANNELS || !port)
+		if (port > controller->num_channels || !port)
 			goto err;
 		if (is_tx)
 			cppi41_channel = &controller->tx_channel[port - 1];
@@ -697,6 +740,8 @@ void cppi41_dma_controller_destroy(struct dma_controller *c)
 
 	hrtimer_cancel(&controller->early_tx);
 	cppi41_dma_controller_stop(controller);
+	kfree(controller->rx_channel);
+	kfree(controller->tx_channel);
 	kfree(controller);
 }
 EXPORT_SYMBOL_GPL(cppi41_dma_controller_destroy);
@@ -705,6 +750,7 @@ struct dma_controller *
 cppi41_dma_controller_create(struct musb *musb, void __iomem *base)
 {
 	struct cppi41_dma_controller *controller;
+	int channel_size;
 	int ret = 0;
 
 	if (!musb->controller->parent->of_node) {
@@ -727,12 +773,37 @@ cppi41_dma_controller_create(struct musb *musb, void __iomem *base)
 	controller->controller.is_compatible = cppi41_is_compatible;
 	controller->controller.musb = musb;
 
+	if (musb->io.quirks & MUSB_DA8XX) {
+		controller->tdown_reg = DA8XX_USB_TEARDOWN;
+		controller->autoreq_reg = DA8XX_USB_AUTOREQ;
+		controller->set_dma_mode = da8xx_set_dma_mode;
+		controller->num_channels = DA8XX_DMA_NUM_CHANNELS;
+	} else {
+		controller->tdown_reg = USB_TDOWN;
+		controller->autoreq_reg = USB_CTRL_AUTOREQ;
+		controller->set_dma_mode = cppi41_set_dma_mode;
+		controller->num_channels = MUSB_DMA_NUM_CHANNELS;
+	}
+
+	channel_size = controller->num_channels *
+			sizeof(struct cppi41_dma_channel);
+	controller->rx_channel = kzalloc(channel_size, GFP_KERNEL);
+	if (!controller->rx_channel)
+		goto rx_channel_alloc_fail;
+	controller->tx_channel = kzalloc(channel_size, GFP_KERNEL);
+	if (!controller->tx_channel)
+		goto tx_channel_alloc_fail;
+
 	ret = cppi41_dma_controller_start(controller);
 	if (ret)
 		goto plat_get_fail;
 	return &controller->controller;
 
 plat_get_fail:
+	kfree(controller->tx_channel);
+tx_channel_alloc_fail:
+	kfree(controller->rx_channel);
+rx_channel_alloc_fail:
 	kfree(controller);
 kzalloc_fail:
 	if (ret == -EPROBE_DEFER)
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index 9a78877a8afe..5e0f079dde21 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver debug defines
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef __MUSB_LINUX_DEBUG_H__
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 952733ceaac8..7cf5a1bbdaff 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -1,34 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver debugfs support
  *
  * Copyright 2010 Nokia Corporation
  * Contact: Felipe Balbi <felipe.balbi@nokia.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/musb/musb_dma.h b/drivers/usb/musb/musb_dma.h
index 04c3bd86bd62..a4241f4d430e 100644
--- a/drivers/usb/musb/musb_dma.h
+++ b/drivers/usb/musb/musb_dma.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver DMA controller abstraction
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef __MUSB_DMA_H__
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index f6b526606ad1..05a679d5e3a2 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Texas Instruments DSPS platforms "glue layer"
  *
@@ -7,22 +8,6 @@
  *
  * This file is part of the Inventra Controller Driver for Linux.
  *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA  02111-1307  USA
- *
  * musb_dsps.c will be a common file for all the TI DSPS platforms
  * such as dm64x, dm36x, dm35x, da8x, am35x and ti81x.
  * For now only ti81x is using this and in future davinci.c, am35x.c
@@ -119,7 +104,6 @@ struct dsps_glue {
 	struct platform_device *musb;	/* child musb pdev */
 	const struct dsps_musb_wrapper *wrp; /* wrapper register offsets */
 	int vbus_irq;			/* optional vbus irq */
-	struct timer_list timer;	/* otg_workaround timer */
 	unsigned long last_timer;    /* last timer data for each instance */
 	bool sw_babble_enabled;
 	void __iomem *usbss_base;
@@ -149,6 +133,7 @@ static const struct debugfs_reg32 dsps_musb_regs[] = {
 
 static void dsps_mod_timer(struct dsps_glue *glue, int wait_ms)
 {
+	struct musb *musb = platform_get_drvdata(glue->musb);
 	int wait;
 
 	if (wait_ms < 0)
@@ -156,7 +141,7 @@ static void dsps_mod_timer(struct dsps_glue *glue, int wait_ms)
 	else
 		wait = msecs_to_jiffies(wait_ms);
 
-	mod_timer(&glue->timer, jiffies + wait);
+	mod_timer(&musb->dev_timer, jiffies + wait);
 }
 
 /*
@@ -216,7 +201,7 @@ static void dsps_musb_disable(struct musb *musb)
 	musb_writel(reg_base, wrp->coreintr_clear, wrp->usb_bitmap);
 	musb_writel(reg_base, wrp->epintr_clear,
 			 wrp->txep_bitmap | wrp->rxep_bitmap);
-	del_timer_sync(&glue->timer);
+	del_timer_sync(&musb->dev_timer);
 }
 
 /* Caller must take musb->lock */
@@ -230,7 +215,7 @@ static int dsps_check_status(struct musb *musb, void *unused)
 	int skip_session = 0;
 
 	if (glue->vbus_irq)
-		del_timer(&glue->timer);
+		del_timer(&musb->dev_timer);
 
 	/*
 	 * We poll because DSPS IP's won't expose several OTG-critical
@@ -282,9 +267,9 @@ static int dsps_check_status(struct musb *musb, void *unused)
 	return 0;
 }
 
-static void otg_timer(unsigned long _musb)
+static void otg_timer(struct timer_list *t)
 {
-	struct musb *musb = (void *)_musb;
+	struct musb *musb = from_timer(musb, t, dev_timer);
 	struct device *dev = musb->controller;
 	unsigned long flags;
 	int err;
@@ -480,7 +465,7 @@ static int dsps_musb_init(struct musb *musb)
 		}
 	}
 
-	setup_timer(&glue->timer, otg_timer, (unsigned long) musb);
+	timer_setup(&musb->dev_timer, otg_timer, 0);
 
 	/* Reset the musb */
 	musb_writel(reg_base, wrp->control, (1 << wrp->reset));
@@ -515,7 +500,7 @@ static int dsps_musb_exit(struct musb *musb)
 	struct device *dev = musb->controller;
 	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
 
-	del_timer_sync(&glue->timer);
+	del_timer_sync(&musb->dev_timer);
 	usb_phy_shutdown(musb->xceiv);
 	phy_power_off(musb->phy);
 	phy_exit(musb->phy);
@@ -1027,7 +1012,7 @@ static int dsps_suspend(struct device *dev)
 		return ret;
 	}
 
-	del_timer_sync(&glue->timer);
+	del_timer_sync(&musb->dev_timer);
 
 	mbase = musb->ctrl_base;
 	glue->context.control = musb_readl(mbase, wrp->control);
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index bc6d1717c9ec..293e5b8da565 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver peripheral support
  *
@@ -5,32 +6,6 @@
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
  * Copyright (C) 2009 MontaVista Software, Inc. <source@mvista.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/musb/musb_gadget.h b/drivers/usb/musb/musb_gadget.h
index 0314dfc770c7..9c34aca06db6 100644
--- a/drivers/usb/musb/musb_gadget.h
+++ b/drivers/usb/musb/musb_gadget.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver peripheral defines
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef __MUSB_GADGET_H
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 844a309fe895..18da4873e52e 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG peripheral driver ep0 handling
  *
@@ -5,32 +6,6 @@
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
  * Copyright (C) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index b17450a59882..2627363fb4fe 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver host support
  *
@@ -5,32 +6,6 @@
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
  * Copyright (C) 2008-2009 MontaVista Software, Inc. <source@mvista.com>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/musb/musb_host.h b/drivers/usb/musb/musb_host.h
index 7bbf01bf4bb0..72392bbcd0a4 100644
--- a/drivers/usb/musb/musb_host.h
+++ b/drivers/usb/musb/musb_host.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver host defines
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef _MUSB_HOST_H
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index 17a80ae20674..b7025b2e6e00 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver register I/O
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h
index cff5bcf0d00f..a4beba184798 100644
--- a/drivers/usb/musb/musb_regs.h
+++ b/drivers/usb/musb/musb_regs.h
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver register defines
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef __MUSB_REGS_H__
diff --git a/drivers/usb/musb/musb_trace.c b/drivers/usb/musb/musb_trace.c
index 70973d901a21..476872adce80 100644
--- a/drivers/usb/musb/musb_trace.c
+++ b/drivers/usb/musb/musb_trace.c
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * musb_trace.c - MUSB Controller Trace Support
  *
  * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
  *
  * Author: Bin Liu <b-liu@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #define CREATE_TRACE_POINTS
diff --git a/drivers/usb/musb/musb_trace.h b/drivers/usb/musb/musb_trace.h
index f031c9e74322..a97d618fe8ff 100644
--- a/drivers/usb/musb/musb_trace.h
+++ b/drivers/usb/musb/musb_trace.h
@@ -1,18 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * musb_trace.h - MUSB Controller Trace Support
  *
  * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com
  *
  * Author: Bin Liu <b-liu@ti.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2  of
- * the License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #undef TRACE_SYSTEM
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index 0b4595439d51..5165d2b07ade 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -1,35 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver virtual root hub support
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2006 by Texas Instruments
  * Copyright (C) 2006-2007 Nokia Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 3620073da58c..21fb9e6622f3 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -1,34 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver - support for Mentor's DMA controller
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2007 by Texas Instruments
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 #include <linux/device.h>
 #include <linux/interrupt.h>
diff --git a/drivers/usb/musb/musbhsdma.h b/drivers/usb/musb/musbhsdma.h
index a3dcbd55e436..44f7983df0a1 100644
--- a/drivers/usb/musb/musbhsdma.h
+++ b/drivers/usb/musb/musbhsdma.h
@@ -1,34 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * MUSB OTG driver - support for Mentor's DMA controller
  *
  * Copyright 2005 Mentor Graphics Corporation
  * Copyright (C) 2005-2007 by Texas Instruments
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
- * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
  */
 
 #ifndef CONFIG_BLACKFIN
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 456f3e6ecf03..5d705930ef47 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2007 by Texas Instruments
  * Some code has been taken from tusb6010.c
@@ -6,23 +7,6 @@
  * Tony Lindgren <tony@atomide.com>
  *
  * This file is part of the Inventra Controller Driver for Linux.
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
- *
- * The Inventra Controller Driver for Linux is distributed in
- * the hope that it will be useful, but WITHOUT ANY WARRANTY;
- * without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
- * License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with The Inventra Controller Driver for Linux ; if not,
- * write to the Free Software Foundation, Inc., 59 Temple Place,
- * Suite 330, Boston, MA  02111-1307  USA
- *
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/drivers/usb/musb/omap2430.h b/drivers/usb/musb/omap2430.h
index 1b5e83a9840e..859008fa0e3c 100644
--- a/drivers/usb/musb/omap2430.h
+++ b/drivers/usb/musb/omap2430.h
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2006 by Texas Instruments
- *
- * The Inventra Controller Driver for Linux is free software; you
- * can redistribute it and/or modify it under the terms of the GNU
- * General Public License version 2 as published by the Free Software
- * Foundation.
  */
 
 #ifndef __MUSB_OMAP243X_H__
diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c
index c9a09b5bb6e5..2d201219ecff 100644
--- a/drivers/usb/musb/sunxi.c
+++ b/drivers/usb/musb/sunxi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Allwinner sun4i MUSB Glue Layer
  *
@@ -5,16 +6,6 @@
  *
  * Based on code from
  * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #include <linux/clk.h>
@@ -297,6 +288,8 @@ static int sunxi_musb_exit(struct musb *musb)
 	if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
 		sunxi_sram_release(musb->controller->parent);
 
+	devm_usb_put_phy(glue->dev, glue->xceiv);
+
 	return 0;
 }
 
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 4eb640c54f2c..39453287b5c3 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * TUSB6010 USB 2.0 OTG Dual Role controller
  *
  * Copyright (C) 2006 Nokia Corporation
  * Tony Lindgren <tony@atomide.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  * Notes:
  * - Driver assumes that interface to external host (main CPU) is
  *   configured for NOR FLASH interface instead of VLYNQ serial
@@ -452,11 +449,9 @@ static int tusb_musb_vbus_status(struct musb *musb)
 	return ret;
 }
 
-static struct timer_list musb_idle_timer;
-
-static void musb_do_idle(unsigned long _musb)
+static void musb_do_idle(struct timer_list *t)
 {
-	struct musb	*musb = (void *)_musb;
+	struct musb	*musb = from_timer(musb, t, dev_timer);
 	unsigned long	flags;
 
 	spin_lock_irqsave(&musb->lock, flags);
@@ -523,13 +518,13 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)
 			&& (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) {
 		dev_dbg(musb->controller, "%s active, deleting timer\n",
 			usb_otg_state_string(musb->xceiv->otg->state));
-		del_timer(&musb_idle_timer);
+		del_timer(&musb->dev_timer);
 		last_timer = jiffies;
 		return;
 	}
 
 	if (time_after(last_timer, timeout)) {
-		if (!timer_pending(&musb_idle_timer))
+		if (!timer_pending(&musb->dev_timer))
 			last_timer = timeout;
 		else {
 			dev_dbg(musb->controller, "Longer idle timer already pending, ignoring\n");
@@ -541,7 +536,7 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)
 	dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
 		usb_otg_state_string(musb->xceiv->otg->state),
 		(unsigned long)jiffies_to_msecs(timeout - jiffies));
-	mod_timer(&musb_idle_timer, timeout);
+	mod_timer(&musb->dev_timer, timeout);
 }
 
 /* ticks of 60 MHz clock */
@@ -873,7 +868,7 @@ static irqreturn_t tusb_musb_interrupt(int irq, void *__hci)
 	}
 
 	if (int_src & TUSB_INT_SRC_USB_IP_CONN)
-		del_timer(&musb_idle_timer);
+		del_timer(&musb->dev_timer);
 
 	/* OTG state change reports (annoyingly) not issued by Mentor core */
 	if (int_src & (TUSB_INT_SRC_VBUS_SENSE_CHNG
@@ -982,7 +977,7 @@ static void tusb_musb_disable(struct musb *musb)
 	musb_writel(tbase, TUSB_DMA_INT_MASK, 0x7fffffff);
 	musb_writel(tbase, TUSB_GPIO_INT_MASK, 0x1ff);
 
-	del_timer(&musb_idle_timer);
+	del_timer(&musb->dev_timer);
 
 	if (is_dma_capable() && !dma_off) {
 		printk(KERN_WARNING "%s %s: dma still active\n",
@@ -1142,7 +1137,7 @@ static int tusb_musb_init(struct musb *musb)
 	musb->xceiv->set_power = tusb_draw_power;
 	the_musb = musb;
 
-	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
+	timer_setup(&musb->dev_timer, musb_do_idle, 0);
 
 done:
 	if (ret < 0) {
@@ -1156,7 +1151,7 @@ done:
 
 static int tusb_musb_exit(struct musb *musb)
 {
-	del_timer_sync(&musb_idle_timer);
+	del_timer_sync(&musb->dev_timer);
 	the_musb = NULL;
 
 	if (musb->board_set_power)
diff --git a/drivers/usb/musb/tusb6010.h b/drivers/usb/musb/tusb6010.h
index 72cdad23ced9..fd8025bbece7 100644
--- a/drivers/usb/musb/tusb6010.h
+++ b/drivers/usb/musb/tusb6010.h
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Definitions for TUSB6010 USB 2.0 OTG Dual Role controller
  *
  * Copyright (C) 2006 Nokia Corporation
  * Tony Lindgren <tony@atomide.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #ifndef __TUSB6010_H__
diff --git a/drivers/usb/musb/tusb6010_omap.c b/drivers/usb/musb/tusb6010_omap.c
index e8060e49b0f4..60a93b8bbe3c 100644
--- a/drivers/usb/musb/tusb6010_omap.c
+++ b/drivers/usb/musb/tusb6010_omap.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * TUSB6010 USB 2.0 OTG Dual Role controller OMAP DMA interface
  *
  * Copyright (C) 2006 Nokia Corporation
  * Tony Lindgren <tony@atomide.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 #include <linux/module.h>
 #include <linux/kernel.h>
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index 5a572500c418..27b4a77a9e23 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2010 ST-Ericsson AB
  * Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
  *
  * Based on omap2430.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index c92a295049ad..d19bb3e89da6 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * drivers/usb/musb/ux500_dma.c
  *
@@ -9,19 +10,6 @@
  *	Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
  *	Praveena Nadahally <praveen.nadahally@stericsson.com>
  *	Rajaram Regupathy <ragupathy.rajaram@stericsson.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index aff702c0eb9f..0f8ab981d572 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -137,35 +137,6 @@ config USB_ISP1301
 	  To compile this driver as a module, choose M here: the
 	  module will be called phy-isp1301.
 
-config USB_MSM_OTG
-	tristate "Qualcomm on-chip USB OTG controller support"
-	depends on (USB || USB_GADGET) && (ARCH_QCOM || COMPILE_TEST)
-	depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'
-	depends on RESET_CONTROLLER
-	select USB_PHY
-	help
-	  Enable this to support the USB OTG transceiver on Qualcomm chips. It
-	  handles PHY initialization, clock management, and workarounds
-	  required after resetting the hardware and power management.
-	  This driver is required even for peripheral only or host only
-	  mode configurations.
-	  This driver is not supported on boards like trout which
-	  has an external PHY.
-
-config USB_QCOM_8X16_PHY
-	tristate "Qualcomm APQ8016/MSM8916 on-chip USB PHY controller support"
-	depends on ARCH_QCOM || COMPILE_TEST
-	depends on RESET_CONTROLLER
-	select USB_PHY
-	select USB_ULPI_VIEWPORT
-	help
-	  Enable this to support the USB transceiver on Qualcomm 8x16 chipsets.
-	  It handles PHY initialization, clock management, power management,
-	  and workarounds required after resetting the hardware.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called phy-qcom-8x16-usb.
-
 config USB_MV_OTG
 	tristate "Marvell USB OTG support"
 	depends on USB_EHCI_MV && USB_MV_UDC && PM && USB_OTG
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index e7c9ca8cafb0..25e579fb92b8 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for physical layer USB drivers
 #
@@ -18,8 +19,6 @@ obj-$(CONFIG_TWL6030_USB)		+= phy-twl6030-usb.o
 obj-$(CONFIG_USB_EHCI_TEGRA)		+= phy-tegra-usb.o
 obj-$(CONFIG_USB_GPIO_VBUS)		+= phy-gpio-vbus-usb.o
 obj-$(CONFIG_USB_ISP1301)		+= phy-isp1301.o
-obj-$(CONFIG_USB_MSM_OTG)		+= phy-msm-usb.o
-obj-$(CONFIG_USB_QCOM_8X16_PHY)	+= phy-qcom-8x16-usb.o
 obj-$(CONFIG_USB_MV_OTG)		+= phy-mv-usb.o
 obj-$(CONFIG_USB_MXS_PHY)		+= phy-mxs-usb.o
 obj-$(CONFIG_USB_ULPI)			+= phy-ulpi.o
diff --git a/drivers/usb/phy/of.c b/drivers/usb/phy/of.c
index 66ffa82457a8..1ab134f45d67 100644
--- a/drivers/usb/phy/of.c
+++ b/drivers/usb/phy/of.c
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB of helper code
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 61bf2285d5b1..87295313a10c 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB transceiver driver for AB8500 family chips
  *
@@ -5,21 +6,6 @@
  * Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
  * Avinash Kumar <avinash.kumar@stericsson.com>
  * Thirupathi Chippakurthy <thirupathi.chippakurthy@stericsson.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c
index 5f5f19813fde..a3cb25cb74f8 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/err.h>
diff --git a/drivers/usb/phy/phy-am335x-control.h b/drivers/usb/phy/phy-am335x-control.h
index e86b3165d69d..cd4acfc6e360 100644
--- a/drivers/usb/phy/phy-am335x-control.h
+++ b/drivers/usb/phy/phy-am335x-control.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AM335x_PHY_CONTROL_H_
 #define _AM335x_PHY_CONTROL_H_
 
diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index 7e5aece769da..b36fa8b953d0 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index cf8f40ae6e01..900875f326d7 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2007,2008 Freescale semiconductor, Inc.
  *
@@ -5,20 +6,6 @@
  *         Jerry Huang <Chang-Ming.Huang@freescale.com>
  *
  * Initialization based on code from Shlomi Gridish.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h
index 23149954a09c..43d410f6641b 100644
--- a/drivers/usb/phy/phy-fsl-usb.h
+++ b/drivers/usb/phy/phy-fsl-usb.h
@@ -1,19 +1,5 @@
-/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the  GNU General Public License along
- * with this program; if not, write  to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (C) 2007,2008 Freescale Semiconductor, Inc. */
 
 #include <linux/usb/otg-fsm.h>
 #include <linux/usb/otg.h>
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 89d6e7a5fdb7..74ba88297991 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * NOP USB transceiver for all USB transceiver which are either built-in
  * into USB IP or which are mostly autonomous.
@@ -5,20 +6,6 @@
  * Copyright (C) 2009 Texas Instruments Inc
  * Author: Ajay Kumar Gupta <ajay.gupta@ti.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  * Current status:
  *	This provides a "nop" transceiver for PHYs which are
  *	autonomous such as isp1504, isp1707, etc.
@@ -224,7 +211,7 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
 	int err = 0;
 
 	u32 clk_rate = 0;
-	bool needs_vcc = false;
+	bool needs_vcc = false, needs_clk = false;
 
 	if (dev->of_node) {
 		struct device_node *node = dev->of_node;
@@ -233,6 +220,7 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
 			clk_rate = 0;
 
 		needs_vcc = of_property_read_bool(node, "vcc-supply");
+		needs_clk = of_property_read_bool(node, "clocks");
 		nop->gpiod_reset = devm_gpiod_get_optional(dev, "reset",
 							   GPIOD_ASIS);
 		err = PTR_ERR_OR_ZERO(nop->gpiod_reset);
@@ -275,6 +263,8 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
 	if (IS_ERR(nop->clk)) {
 		dev_dbg(dev, "Can't get phy clock: %ld\n",
 					PTR_ERR(nop->clk));
+		if (needs_clk)
+			return PTR_ERR(nop->clk);
 	}
 
 	if (!IS_ERR(nop->clk) && clk_rate) {
diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h
index 0d0eadd54ed9..97289627561d 100644
--- a/drivers/usb/phy/phy-generic.h
+++ b/drivers/usb/phy/phy-generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PHY_GENERIC_H_
 #define _PHY_GENERIC_H_
 
diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index f66120db8a41..553e2573c74f 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * gpio-vbus.c - simple GPIO VBUS sensing driver for B peripheral devices
  *
  * Copyright (c) 2008 Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c
index c6052c814bcc..7041ba030052 100644
--- a/drivers/usb/phy/phy-isp1301-omap.c
+++ b/drivers/usb/phy/phy-isp1301-omap.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * isp1301_omap - ISP 1301 USB transceiver, talking to OMAP OTG controller
  *
  * Copyright (C) 2004 Texas Instruments
  * Copyright (C) 2004 David Brownell
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
@@ -1183,9 +1170,11 @@ static irqreturn_t isp1301_irq(int irq, void *isp)
 	return IRQ_HANDLED;
 }
 
-static void isp1301_timer(unsigned long _isp)
+static void isp1301_timer(struct timer_list *t)
 {
-	isp1301_defer_work((void *)_isp, WORK_TIMER);
+	struct isp1301 *isp = from_timer(isp, t, timer);
+
+	isp1301_defer_work(isp, WORK_TIMER);
 }
 
 /*-------------------------------------------------------------------------*/
@@ -1222,7 +1211,6 @@ static int isp1301_remove(struct i2c_client *i2c)
 	if (machine_is_omap_h2())
 		gpio_free(2);
 
-	isp->timer.data = 0;
 	set_bit(WORK_STOP, &isp->todo);
 	del_timer_sync(&isp->timer);
 	flush_work(&isp->work);
@@ -1507,9 +1495,7 @@ isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
 	}
 
 	INIT_WORK(&isp->work, isp1301_work);
-	init_timer(&isp->timer);
-	isp->timer.function = isp1301_timer;
-	isp->timer.data = (unsigned long) isp;
+	timer_setup(&isp->timer, isp1301_timer, 0);
 
 	i2c_set_clientdata(i2c, isp);
 	isp->client = i2c;
diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c
index f333024660b4..93b7d6a30aad 100644
--- a/drivers/usb/phy/phy-isp1301.c
+++ b/drivers/usb/phy/phy-isp1301.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NXP ISP1301 USB transceiver driver
  *
  * Copyright (C) 2012 Roland Stigge
  *
  * Author: Roland Stigge <stigge@antcom.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/phy/phy-keystone.c b/drivers/usb/phy/phy-keystone.c
index 01d4e4cdbc79..19871266312d 100644
--- a/drivers/usb/phy/phy-keystone.c
+++ b/drivers/usb/phy/phy-keystone.c
@@ -1,19 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * phy-keystone - USB PHY, talking to dwc3 controller in Keystone.
  *
  * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  *
  * Author: WingMan Kwok <w-kwok2@ti.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
deleted file mode 100644
index 3d0dd2f97415..000000000000
--- a/drivers/usb/phy/phy-msm-usb.c
+++ /dev/null
@@ -1,2085 +0,0 @@
-/* Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/extcon.h>
-#include <linux/gpio/consumer.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/err.h>
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/uaccess.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-#include <linux/pm_runtime.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/reboot.h>
-#include <linux/reset.h>
-#include <linux/types.h>
-#include <linux/usb/otg.h>
-
-#include <linux/usb.h>
-#include <linux/usb/otg.h>
-#include <linux/usb/of.h>
-#include <linux/usb/ulpi.h>
-#include <linux/usb/gadget.h>
-#include <linux/usb/hcd.h>
-#include <linux/usb/msm_hsusb_hw.h>
-#include <linux/regulator/consumer.h>
-
-/**
- * OTG control
- *
- * OTG_NO_CONTROL	Id/VBUS notifications not required. Useful in host
- *                      only configuration.
- * OTG_PHY_CONTROL	Id/VBUS notifications comes form USB PHY.
- * OTG_PMIC_CONTROL	Id/VBUS notifications comes from PMIC hardware.
- * OTG_USER_CONTROL	Id/VBUS notifcations comes from User via sysfs.
- *
- */
-enum otg_control_type {
-	OTG_NO_CONTROL = 0,
-	OTG_PHY_CONTROL,
-	OTG_PMIC_CONTROL,
-	OTG_USER_CONTROL,
-};
-
-/**
- * PHY used in
- *
- * INVALID_PHY			Unsupported PHY
- * CI_45NM_INTEGRATED_PHY	Chipidea 45nm integrated PHY
- * SNPS_28NM_INTEGRATED_PHY	Synopsis 28nm integrated PHY
- *
- */
-enum msm_usb_phy_type {
-	INVALID_PHY = 0,
-	CI_45NM_INTEGRATED_PHY,
-	SNPS_28NM_INTEGRATED_PHY,
-};
-
-#define IDEV_CHG_MAX	1500
-#define IUNIT		100
-
-/**
- * Different states involved in USB charger detection.
- *
- * USB_CHG_STATE_UNDEFINED	USB charger is not connected or detection
- *                              process is not yet started.
- * USB_CHG_STATE_WAIT_FOR_DCD	Waiting for Data pins contact.
- * USB_CHG_STATE_DCD_DONE	Data pin contact is detected.
- * USB_CHG_STATE_PRIMARY_DONE	Primary detection is completed (Detects
- *                              between SDP and DCP/CDP).
- * USB_CHG_STATE_SECONDARY_DONE	Secondary detection is completed (Detects
- *                              between DCP and CDP).
- * USB_CHG_STATE_DETECTED	USB charger type is determined.
- *
- */
-enum usb_chg_state {
-	USB_CHG_STATE_UNDEFINED = 0,
-	USB_CHG_STATE_WAIT_FOR_DCD,
-	USB_CHG_STATE_DCD_DONE,
-	USB_CHG_STATE_PRIMARY_DONE,
-	USB_CHG_STATE_SECONDARY_DONE,
-	USB_CHG_STATE_DETECTED,
-};
-
-/**
- * USB charger types
- *
- * USB_INVALID_CHARGER	Invalid USB charger.
- * USB_SDP_CHARGER	Standard downstream port. Refers to a downstream port
- *                      on USB2.0 compliant host/hub.
- * USB_DCP_CHARGER	Dedicated charger port (AC charger/ Wall charger).
- * USB_CDP_CHARGER	Charging downstream port. Enumeration can happen and
- *                      IDEV_CHG_MAX can be drawn irrespective of USB state.
- *
- */
-enum usb_chg_type {
-	USB_INVALID_CHARGER = 0,
-	USB_SDP_CHARGER,
-	USB_DCP_CHARGER,
-	USB_CDP_CHARGER,
-};
-
-/**
- * struct msm_otg_platform_data - platform device data
- *              for msm_otg driver.
- * @phy_init_seq: PHY configuration sequence values. Value of -1 is reserved as
- *              "do not overwrite default vaule at this address".
- * @phy_init_sz: PHY configuration sequence size.
- * @vbus_power: VBUS power on/off routine.
- * @power_budget: VBUS power budget in mA (0 will be treated as 500mA).
- * @mode: Supported mode (OTG/peripheral/host).
- * @otg_control: OTG switch controlled by user/Id pin
- */
-struct msm_otg_platform_data {
-	int *phy_init_seq;
-	int phy_init_sz;
-	void (*vbus_power)(bool on);
-	unsigned power_budget;
-	enum usb_dr_mode mode;
-	enum otg_control_type otg_control;
-	enum msm_usb_phy_type phy_type;
-	void (*setup_gpio)(enum usb_otg_state state);
-};
-
-/**
- * struct msm_otg: OTG driver data. Shared by HCD and DCD.
- * @otg: USB OTG Transceiver structure.
- * @pdata: otg device platform data.
- * @irq: IRQ number assigned for HSUSB controller.
- * @clk: clock struct of usb_hs_clk.
- * @pclk: clock struct of usb_hs_pclk.
- * @core_clk: clock struct of usb_hs_core_clk.
- * @regs: ioremapped register base address.
- * @inputs: OTG state machine inputs(Id, SessValid etc).
- * @sm_work: OTG state machine work.
- * @in_lpm: indicates low power mode (LPM) state.
- * @async_int: Async interrupt arrived.
- * @cur_power: The amount of mA available from downstream port.
- * @chg_work: Charger detection work.
- * @chg_state: The state of charger detection process.
- * @chg_type: The type of charger attached.
- * @dcd_retires: The retry count used to track Data contact
- *               detection process.
- * @manual_pullup: true if VBUS is not routed to USB controller/phy
- *	and controller driver therefore enables pull-up explicitly before
- *	starting controller using usbcmd run/stop bit.
- * @vbus: VBUS signal state trakining, using extcon framework
- * @id: ID signal state trakining, using extcon framework
- * @switch_gpio: Descriptor for GPIO used to control external Dual
- *               SPDT USB Switch.
- * @reboot: Used to inform the driver to route USB D+/D- line to Device
- *	    connector
- */
-struct msm_otg {
-	struct usb_phy phy;
-	struct msm_otg_platform_data *pdata;
-	int irq;
-	struct clk *clk;
-	struct clk *pclk;
-	struct clk *core_clk;
-	void __iomem *regs;
-#define ID		0
-#define B_SESS_VLD	1
-	unsigned long inputs;
-	struct work_struct sm_work;
-	atomic_t in_lpm;
-	int async_int;
-	unsigned cur_power;
-	int phy_number;
-	struct delayed_work chg_work;
-	enum usb_chg_state chg_state;
-	enum usb_chg_type chg_type;
-	u8 dcd_retries;
-	struct regulator *v3p3;
-	struct regulator *v1p8;
-	struct regulator *vddcx;
-	struct regulator_bulk_data supplies[3];
-
-	struct reset_control *phy_rst;
-	struct reset_control *link_rst;
-	int vdd_levels[3];
-
-	bool manual_pullup;
-
-	struct gpio_desc *switch_gpio;
-	struct notifier_block reboot;
-};
-
-#define MSM_USB_BASE	(motg->regs)
-#define DRIVER_NAME	"msm_otg"
-
-#define ULPI_IO_TIMEOUT_USEC	(10 * 1000)
-#define LINK_RESET_TIMEOUT_USEC	(250 * 1000)
-
-#define USB_PHY_3P3_VOL_MIN	3050000 /* uV */
-#define USB_PHY_3P3_VOL_MAX	3300000 /* uV */
-#define USB_PHY_3P3_HPM_LOAD	50000	/* uA */
-#define USB_PHY_3P3_LPM_LOAD	4000	/* uA */
-
-#define USB_PHY_1P8_VOL_MIN	1800000 /* uV */
-#define USB_PHY_1P8_VOL_MAX	1800000 /* uV */
-#define USB_PHY_1P8_HPM_LOAD	50000	/* uA */
-#define USB_PHY_1P8_LPM_LOAD	4000	/* uA */
-
-#define USB_PHY_VDD_DIG_VOL_MIN	1000000 /* uV */
-#define USB_PHY_VDD_DIG_VOL_MAX	1320000 /* uV */
-#define USB_PHY_SUSP_DIG_VOL	500000  /* uV */
-
-enum vdd_levels {
-	VDD_LEVEL_NONE = 0,
-	VDD_LEVEL_MIN,
-	VDD_LEVEL_MAX,
-};
-
-static int msm_hsusb_init_vddcx(struct msm_otg *motg, int init)
-{
-	int ret = 0;
-
-	if (init) {
-		ret = regulator_set_voltage(motg->vddcx,
-				motg->vdd_levels[VDD_LEVEL_MIN],
-				motg->vdd_levels[VDD_LEVEL_MAX]);
-		if (ret) {
-			dev_err(motg->phy.dev, "Cannot set vddcx voltage\n");
-			return ret;
-		}
-
-		ret = regulator_enable(motg->vddcx);
-		if (ret)
-			dev_err(motg->phy.dev, "unable to enable hsusb vddcx\n");
-	} else {
-		ret = regulator_set_voltage(motg->vddcx, 0,
-				motg->vdd_levels[VDD_LEVEL_MAX]);
-		if (ret)
-			dev_err(motg->phy.dev, "Cannot set vddcx voltage\n");
-		ret = regulator_disable(motg->vddcx);
-		if (ret)
-			dev_err(motg->phy.dev, "unable to disable hsusb vddcx\n");
-	}
-
-	return ret;
-}
-
-static int msm_hsusb_ldo_init(struct msm_otg *motg, int init)
-{
-	int rc = 0;
-
-	if (init) {
-		rc = regulator_set_voltage(motg->v3p3, USB_PHY_3P3_VOL_MIN,
-				USB_PHY_3P3_VOL_MAX);
-		if (rc) {
-			dev_err(motg->phy.dev, "Cannot set v3p3 voltage\n");
-			goto exit;
-		}
-		rc = regulator_enable(motg->v3p3);
-		if (rc) {
-			dev_err(motg->phy.dev, "unable to enable the hsusb 3p3\n");
-			goto exit;
-		}
-		rc = regulator_set_voltage(motg->v1p8, USB_PHY_1P8_VOL_MIN,
-				USB_PHY_1P8_VOL_MAX);
-		if (rc) {
-			dev_err(motg->phy.dev, "Cannot set v1p8 voltage\n");
-			goto disable_3p3;
-		}
-		rc = regulator_enable(motg->v1p8);
-		if (rc) {
-			dev_err(motg->phy.dev, "unable to enable the hsusb 1p8\n");
-			goto disable_3p3;
-		}
-
-		return 0;
-	}
-
-	regulator_disable(motg->v1p8);
-disable_3p3:
-	regulator_disable(motg->v3p3);
-exit:
-	return rc;
-}
-
-static int msm_hsusb_ldo_set_mode(struct msm_otg *motg, int on)
-{
-	int ret = 0;
-
-	if (on) {
-		ret = regulator_set_load(motg->v1p8, USB_PHY_1P8_HPM_LOAD);
-		if (ret < 0) {
-			pr_err("Could not set HPM for v1p8\n");
-			return ret;
-		}
-		ret = regulator_set_load(motg->v3p3, USB_PHY_3P3_HPM_LOAD);
-		if (ret < 0) {
-			pr_err("Could not set HPM for v3p3\n");
-			regulator_set_load(motg->v1p8, USB_PHY_1P8_LPM_LOAD);
-			return ret;
-		}
-	} else {
-		ret = regulator_set_load(motg->v1p8, USB_PHY_1P8_LPM_LOAD);
-		if (ret < 0)
-			pr_err("Could not set LPM for v1p8\n");
-		ret = regulator_set_load(motg->v3p3, USB_PHY_3P3_LPM_LOAD);
-		if (ret < 0)
-			pr_err("Could not set LPM for v3p3\n");
-	}
-
-	pr_debug("reg (%s)\n", on ? "HPM" : "LPM");
-	return ret < 0 ? ret : 0;
-}
-
-static int ulpi_read(struct usb_phy *phy, u32 reg)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	int cnt = 0;
-
-	/* initiate read operation */
-	writel(ULPI_RUN | ULPI_READ | ULPI_ADDR(reg),
-	       USB_ULPI_VIEWPORT);
-
-	/* wait for completion */
-	while (cnt < ULPI_IO_TIMEOUT_USEC) {
-		if (!(readl(USB_ULPI_VIEWPORT) & ULPI_RUN))
-			break;
-		udelay(1);
-		cnt++;
-	}
-
-	if (cnt >= ULPI_IO_TIMEOUT_USEC) {
-		dev_err(phy->dev, "ulpi_read: timeout %08x\n",
-			readl(USB_ULPI_VIEWPORT));
-		return -ETIMEDOUT;
-	}
-	return ULPI_DATA_READ(readl(USB_ULPI_VIEWPORT));
-}
-
-static int ulpi_write(struct usb_phy *phy, u32 val, u32 reg)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	int cnt = 0;
-
-	/* initiate write operation */
-	writel(ULPI_RUN | ULPI_WRITE |
-	       ULPI_ADDR(reg) | ULPI_DATA(val),
-	       USB_ULPI_VIEWPORT);
-
-	/* wait for completion */
-	while (cnt < ULPI_IO_TIMEOUT_USEC) {
-		if (!(readl(USB_ULPI_VIEWPORT) & ULPI_RUN))
-			break;
-		udelay(1);
-		cnt++;
-	}
-
-	if (cnt >= ULPI_IO_TIMEOUT_USEC) {
-		dev_err(phy->dev, "ulpi_write: timeout\n");
-		return -ETIMEDOUT;
-	}
-	return 0;
-}
-
-static struct usb_phy_io_ops msm_otg_io_ops = {
-	.read = ulpi_read,
-	.write = ulpi_write,
-};
-
-static void ulpi_init(struct msm_otg *motg)
-{
-	struct msm_otg_platform_data *pdata = motg->pdata;
-	int *seq = pdata->phy_init_seq, idx;
-	u32 addr = ULPI_EXT_VENDOR_SPECIFIC;
-
-	for (idx = 0; idx < pdata->phy_init_sz; idx++) {
-		if (seq[idx] == -1)
-			continue;
-
-		dev_vdbg(motg->phy.dev, "ulpi: write 0x%02x to 0x%02x\n",
-				seq[idx], addr + idx);
-		ulpi_write(&motg->phy, seq[idx], addr + idx);
-	}
-}
-
-static int msm_phy_notify_disconnect(struct usb_phy *phy,
-				   enum usb_device_speed speed)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	int val;
-
-	if (motg->manual_pullup) {
-		val = ULPI_MISC_A_VBUSVLDEXT | ULPI_MISC_A_VBUSVLDEXTSEL;
-		usb_phy_io_write(phy, val, ULPI_CLR(ULPI_MISC_A));
-	}
-
-	/*
-	 * Put the transceiver in non-driving mode. Otherwise host
-	 * may not detect soft-disconnection.
-	 */
-	val = ulpi_read(phy, ULPI_FUNC_CTRL);
-	val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-	val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
-	ulpi_write(phy, val, ULPI_FUNC_CTRL);
-
-	return 0;
-}
-
-static int msm_otg_link_clk_reset(struct msm_otg *motg, bool assert)
-{
-	int ret;
-
-	if (assert)
-		ret = reset_control_assert(motg->link_rst);
-	else
-		ret = reset_control_deassert(motg->link_rst);
-
-	if (ret)
-		dev_err(motg->phy.dev, "usb link clk reset %s failed\n",
-			assert ? "assert" : "deassert");
-
-	return ret;
-}
-
-static int msm_otg_phy_clk_reset(struct msm_otg *motg)
-{
-	int ret = 0;
-
-	if (motg->phy_rst)
-		ret = reset_control_reset(motg->phy_rst);
-
-	if (ret)
-		dev_err(motg->phy.dev, "usb phy clk reset failed\n");
-
-	return ret;
-}
-
-static int msm_link_reset(struct msm_otg *motg)
-{
-	u32 val;
-	int ret;
-
-	ret = msm_otg_link_clk_reset(motg, 1);
-	if (ret)
-		return ret;
-
-	/* wait for 1ms delay as suggested in HPG. */
-	usleep_range(1000, 1200);
-
-	ret = msm_otg_link_clk_reset(motg, 0);
-	if (ret)
-		return ret;
-
-	if (motg->phy_number)
-		writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2);
-
-	/* put transceiver in serial mode as part of reset */
-	val = readl(USB_PORTSC) & ~PORTSC_PTS_MASK;
-	writel(val | PORTSC_PTS_SERIAL, USB_PORTSC);
-
-	return 0;
-}
-
-static int msm_otg_reset(struct usb_phy *phy)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	int cnt = 0;
-
-	writel(USBCMD_RESET, USB_USBCMD);
-	while (cnt < LINK_RESET_TIMEOUT_USEC) {
-		if (!(readl(USB_USBCMD) & USBCMD_RESET))
-			break;
-		udelay(1);
-		cnt++;
-	}
-	if (cnt >= LINK_RESET_TIMEOUT_USEC)
-		return -ETIMEDOUT;
-
-	/* select ULPI phy and clear other status/control bits in PORTSC */
-	writel(PORTSC_PTS_ULPI, USB_PORTSC);
-
-	writel(0x0, USB_AHBBURST);
-	writel(0x08, USB_AHBMODE);
-
-	if (motg->phy_number)
-		writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2);
-	return 0;
-}
-
-static void msm_phy_reset(struct msm_otg *motg)
-{
-	void __iomem *addr;
-
-	if (motg->pdata->phy_type != SNPS_28NM_INTEGRATED_PHY) {
-		msm_otg_phy_clk_reset(motg);
-		return;
-	}
-
-	addr = USB_PHY_CTRL;
-	if (motg->phy_number)
-		addr = USB_PHY_CTRL2;
-
-	/* Assert USB PHY_POR */
-	writel(readl(addr) | PHY_POR_ASSERT, addr);
-
-	/*
-	 * wait for minimum 10 microseconds as suggested in HPG.
-	 * Use a slightly larger value since the exact value didn't
-	 * work 100% of the time.
-	 */
-	udelay(12);
-
-	/* Deassert USB PHY_POR */
-	writel(readl(addr) & ~PHY_POR_ASSERT, addr);
-}
-
-static int msm_usb_reset(struct usb_phy *phy)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	int ret;
-
-	if (!IS_ERR(motg->core_clk))
-		clk_prepare_enable(motg->core_clk);
-
-	ret = msm_link_reset(motg);
-	if (ret) {
-		dev_err(phy->dev, "phy_reset failed\n");
-		return ret;
-	}
-
-	ret = msm_otg_reset(&motg->phy);
-	if (ret) {
-		dev_err(phy->dev, "link reset failed\n");
-		return ret;
-	}
-
-	msleep(100);
-
-	/* Reset USB PHY after performing USB Link RESET */
-	msm_phy_reset(motg);
-
-	if (!IS_ERR(motg->core_clk))
-		clk_disable_unprepare(motg->core_clk);
-
-	return 0;
-}
-
-static int msm_phy_init(struct usb_phy *phy)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	struct msm_otg_platform_data *pdata = motg->pdata;
-	u32 val, ulpi_val = 0;
-
-	/* Program USB PHY Override registers. */
-	ulpi_init(motg);
-
-	/*
-	 * It is recommended in HPG to reset USB PHY after programming
-	 * USB PHY Override registers.
-	 */
-	msm_phy_reset(motg);
-
-	if (pdata->otg_control == OTG_PHY_CONTROL) {
-		val = readl(USB_OTGSC);
-		if (pdata->mode == USB_DR_MODE_OTG) {
-			ulpi_val = ULPI_INT_IDGRD | ULPI_INT_SESS_VALID;
-			val |= OTGSC_IDIE | OTGSC_BSVIE;
-		} else if (pdata->mode == USB_DR_MODE_PERIPHERAL) {
-			ulpi_val = ULPI_INT_SESS_VALID;
-			val |= OTGSC_BSVIE;
-		}
-		writel(val, USB_OTGSC);
-		ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_RISE);
-		ulpi_write(phy, ulpi_val, ULPI_USB_INT_EN_FALL);
-	}
-
-	if (motg->manual_pullup) {
-		val = ULPI_MISC_A_VBUSVLDEXTSEL | ULPI_MISC_A_VBUSVLDEXT;
-		ulpi_write(phy, val, ULPI_SET(ULPI_MISC_A));
-
-		val = readl(USB_GENCONFIG_2);
-		val |= GENCONFIG_2_SESS_VLD_CTRL_EN;
-		writel(val, USB_GENCONFIG_2);
-
-		val = readl(USB_USBCMD);
-		val |= USBCMD_SESS_VLD_CTRL;
-		writel(val, USB_USBCMD);
-
-		val = ulpi_read(phy, ULPI_FUNC_CTRL);
-		val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-		val |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
-		ulpi_write(phy, val, ULPI_FUNC_CTRL);
-	}
-
-	if (motg->phy_number)
-		writel(readl(USB_PHY_CTRL2) | BIT(16), USB_PHY_CTRL2);
-
-	return 0;
-}
-
-#define PHY_SUSPEND_TIMEOUT_USEC	(500 * 1000)
-#define PHY_RESUME_TIMEOUT_USEC	(100 * 1000)
-
-#ifdef CONFIG_PM
-
-static int msm_hsusb_config_vddcx(struct msm_otg *motg, int high)
-{
-	int max_vol = motg->vdd_levels[VDD_LEVEL_MAX];
-	int min_vol;
-	int ret;
-
-	if (high)
-		min_vol = motg->vdd_levels[VDD_LEVEL_MIN];
-	else
-		min_vol = motg->vdd_levels[VDD_LEVEL_NONE];
-
-	ret = regulator_set_voltage(motg->vddcx, min_vol, max_vol);
-	if (ret) {
-		pr_err("Cannot set vddcx voltage\n");
-		return ret;
-	}
-
-	pr_debug("%s: min_vol:%d max_vol:%d\n", __func__, min_vol, max_vol);
-
-	return ret;
-}
-
-static int msm_otg_suspend(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	struct usb_bus *bus = phy->otg->host;
-	struct msm_otg_platform_data *pdata = motg->pdata;
-	void __iomem *addr;
-	int cnt = 0;
-
-	if (atomic_read(&motg->in_lpm))
-		return 0;
-
-	disable_irq(motg->irq);
-	/*
-	 * Chipidea 45-nm PHY suspend sequence:
-	 *
-	 * Interrupt Latch Register auto-clear feature is not present
-	 * in all PHY versions. Latch register is clear on read type.
-	 * Clear latch register to avoid spurious wakeup from
-	 * low power mode (LPM).
-	 *
-	 * PHY comparators are disabled when PHY enters into low power
-	 * mode (LPM). Keep PHY comparators ON in LPM only when we expect
-	 * VBUS/Id notifications from USB PHY. Otherwise turn off USB
-	 * PHY comparators. This save significant amount of power.
-	 *
-	 * PLL is not turned off when PHY enters into low power mode (LPM).
-	 * Disable PLL for maximum power savings.
-	 */
-
-	if (motg->pdata->phy_type == CI_45NM_INTEGRATED_PHY) {
-		ulpi_read(phy, 0x14);
-		if (pdata->otg_control == OTG_PHY_CONTROL)
-			ulpi_write(phy, 0x01, 0x30);
-		ulpi_write(phy, 0x08, 0x09);
-	}
-
-	/*
-	 * PHY may take some time or even fail to enter into low power
-	 * mode (LPM). Hence poll for 500 msec and reset the PHY and link
-	 * in failure case.
-	 */
-	writel(readl(USB_PORTSC) | PORTSC_PHCD, USB_PORTSC);
-	while (cnt < PHY_SUSPEND_TIMEOUT_USEC) {
-		if (readl(USB_PORTSC) & PORTSC_PHCD)
-			break;
-		udelay(1);
-		cnt++;
-	}
-
-	if (cnt >= PHY_SUSPEND_TIMEOUT_USEC) {
-		dev_err(phy->dev, "Unable to suspend PHY\n");
-		msm_otg_reset(phy);
-		enable_irq(motg->irq);
-		return -ETIMEDOUT;
-	}
-
-	/*
-	 * PHY has capability to generate interrupt asynchronously in low
-	 * power mode (LPM). This interrupt is level triggered. So USB IRQ
-	 * line must be disabled till async interrupt enable bit is cleared
-	 * in USBCMD register. Assert STP (ULPI interface STOP signal) to
-	 * block data communication from PHY.
-	 */
-	writel(readl(USB_USBCMD) | ASYNC_INTR_CTRL | ULPI_STP_CTRL, USB_USBCMD);
-
-	addr = USB_PHY_CTRL;
-	if (motg->phy_number)
-		addr = USB_PHY_CTRL2;
-
-	if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
-			motg->pdata->otg_control == OTG_PMIC_CONTROL)
-		writel(readl(addr) | PHY_RETEN, addr);
-
-	clk_disable_unprepare(motg->pclk);
-	clk_disable_unprepare(motg->clk);
-	if (!IS_ERR(motg->core_clk))
-		clk_disable_unprepare(motg->core_clk);
-
-	if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
-			motg->pdata->otg_control == OTG_PMIC_CONTROL) {
-		msm_hsusb_ldo_set_mode(motg, 0);
-		msm_hsusb_config_vddcx(motg, 0);
-	}
-
-	if (device_may_wakeup(phy->dev))
-		enable_irq_wake(motg->irq);
-	if (bus)
-		clear_bit(HCD_FLAG_HW_ACCESSIBLE, &(bus_to_hcd(bus))->flags);
-
-	atomic_set(&motg->in_lpm, 1);
-	enable_irq(motg->irq);
-
-	dev_info(phy->dev, "USB in low power mode\n");
-
-	return 0;
-}
-
-static int msm_otg_resume(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	struct usb_bus *bus = phy->otg->host;
-	void __iomem *addr;
-	int cnt = 0;
-	unsigned temp;
-
-	if (!atomic_read(&motg->in_lpm))
-		return 0;
-
-	clk_prepare_enable(motg->pclk);
-	clk_prepare_enable(motg->clk);
-	if (!IS_ERR(motg->core_clk))
-		clk_prepare_enable(motg->core_clk);
-
-	if (motg->pdata->phy_type == SNPS_28NM_INTEGRATED_PHY &&
-			motg->pdata->otg_control == OTG_PMIC_CONTROL) {
-
-		addr = USB_PHY_CTRL;
-		if (motg->phy_number)
-			addr = USB_PHY_CTRL2;
-
-		msm_hsusb_ldo_set_mode(motg, 1);
-		msm_hsusb_config_vddcx(motg, 1);
-		writel(readl(addr) & ~PHY_RETEN, addr);
-	}
-
-	temp = readl(USB_USBCMD);
-	temp &= ~ASYNC_INTR_CTRL;
-	temp &= ~ULPI_STP_CTRL;
-	writel(temp, USB_USBCMD);
-
-	/*
-	 * PHY comes out of low power mode (LPM) in case of wakeup
-	 * from asynchronous interrupt.
-	 */
-	if (!(readl(USB_PORTSC) & PORTSC_PHCD))
-		goto skip_phy_resume;
-
-	writel(readl(USB_PORTSC) & ~PORTSC_PHCD, USB_PORTSC);
-	while (cnt < PHY_RESUME_TIMEOUT_USEC) {
-		if (!(readl(USB_PORTSC) & PORTSC_PHCD))
-			break;
-		udelay(1);
-		cnt++;
-	}
-
-	if (cnt >= PHY_RESUME_TIMEOUT_USEC) {
-		/*
-		 * This is a fatal error. Reset the link and
-		 * PHY. USB state can not be restored. Re-insertion
-		 * of USB cable is the only way to get USB working.
-		 */
-		dev_err(phy->dev, "Unable to resume USB. Re-plugin the cable\n");
-		msm_otg_reset(phy);
-	}
-
-skip_phy_resume:
-	if (device_may_wakeup(phy->dev))
-		disable_irq_wake(motg->irq);
-	if (bus)
-		set_bit(HCD_FLAG_HW_ACCESSIBLE, &(bus_to_hcd(bus))->flags);
-
-	atomic_set(&motg->in_lpm, 0);
-
-	if (motg->async_int) {
-		motg->async_int = 0;
-		pm_runtime_put(phy->dev);
-		enable_irq(motg->irq);
-	}
-
-	dev_info(phy->dev, "USB exited from low power mode\n");
-
-	return 0;
-}
-#endif
-
-static void msm_otg_notify_charger(struct msm_otg *motg, unsigned mA)
-{
-	if (motg->cur_power == mA)
-		return;
-
-	/* TODO: Notify PMIC about available current */
-	dev_info(motg->phy.dev, "Avail curr from USB = %u\n", mA);
-	motg->cur_power = mA;
-}
-
-static void msm_otg_start_host(struct usb_phy *phy, int on)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	struct msm_otg_platform_data *pdata = motg->pdata;
-	struct usb_hcd *hcd;
-
-	if (!phy->otg->host)
-		return;
-
-	hcd = bus_to_hcd(phy->otg->host);
-
-	if (on) {
-		dev_dbg(phy->dev, "host on\n");
-
-		if (pdata->vbus_power)
-			pdata->vbus_power(1);
-		/*
-		 * Some boards have a switch cotrolled by gpio
-		 * to enable/disable internal HUB. Enable internal
-		 * HUB before kicking the host.
-		 */
-		if (pdata->setup_gpio)
-			pdata->setup_gpio(OTG_STATE_A_HOST);
-#ifdef CONFIG_USB
-		usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
-		device_wakeup_enable(hcd->self.controller);
-#endif
-	} else {
-		dev_dbg(phy->dev, "host off\n");
-
-#ifdef CONFIG_USB
-		usb_remove_hcd(hcd);
-#endif
-		if (pdata->setup_gpio)
-			pdata->setup_gpio(OTG_STATE_UNDEFINED);
-		if (pdata->vbus_power)
-			pdata->vbus_power(0);
-	}
-}
-
-static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
-{
-	struct msm_otg *motg = container_of(otg->usb_phy, struct msm_otg, phy);
-	struct usb_hcd *hcd;
-
-	/*
-	 * Fail host registration if this board can support
-	 * only peripheral configuration.
-	 */
-	if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL) {
-		dev_info(otg->usb_phy->dev, "Host mode is not supported\n");
-		return -ENODEV;
-	}
-
-	if (!host) {
-		if (otg->state == OTG_STATE_A_HOST) {
-			pm_runtime_get_sync(otg->usb_phy->dev);
-			msm_otg_start_host(otg->usb_phy, 0);
-			otg->host = NULL;
-			otg->state = OTG_STATE_UNDEFINED;
-			schedule_work(&motg->sm_work);
-		} else {
-			otg->host = NULL;
-		}
-
-		return 0;
-	}
-
-	hcd = bus_to_hcd(host);
-	hcd->power_budget = motg->pdata->power_budget;
-
-	otg->host = host;
-	dev_dbg(otg->usb_phy->dev, "host driver registered w/ tranceiver\n");
-
-	pm_runtime_get_sync(otg->usb_phy->dev);
-	schedule_work(&motg->sm_work);
-
-	return 0;
-}
-
-static void msm_otg_start_peripheral(struct usb_phy *phy, int on)
-{
-	struct msm_otg *motg = container_of(phy, struct msm_otg, phy);
-	struct msm_otg_platform_data *pdata = motg->pdata;
-
-	if (!phy->otg->gadget)
-		return;
-
-	if (on) {
-		dev_dbg(phy->dev, "gadget on\n");
-		/*
-		 * Some boards have a switch cotrolled by gpio
-		 * to enable/disable internal HUB. Disable internal
-		 * HUB before kicking the gadget.
-		 */
-		if (pdata->setup_gpio)
-			pdata->setup_gpio(OTG_STATE_B_PERIPHERAL);
-		usb_gadget_vbus_connect(phy->otg->gadget);
-	} else {
-		dev_dbg(phy->dev, "gadget off\n");
-		usb_gadget_vbus_disconnect(phy->otg->gadget);
-		if (pdata->setup_gpio)
-			pdata->setup_gpio(OTG_STATE_UNDEFINED);
-	}
-
-}
-
-static int msm_otg_set_peripheral(struct usb_otg *otg,
-					struct usb_gadget *gadget)
-{
-	struct msm_otg *motg = container_of(otg->usb_phy, struct msm_otg, phy);
-
-	/*
-	 * Fail peripheral registration if this board can support
-	 * only host configuration.
-	 */
-	if (motg->pdata->mode == USB_DR_MODE_HOST) {
-		dev_info(otg->usb_phy->dev, "Peripheral mode is not supported\n");
-		return -ENODEV;
-	}
-
-	if (!gadget) {
-		if (otg->state == OTG_STATE_B_PERIPHERAL) {
-			pm_runtime_get_sync(otg->usb_phy->dev);
-			msm_otg_start_peripheral(otg->usb_phy, 0);
-			otg->gadget = NULL;
-			otg->state = OTG_STATE_UNDEFINED;
-			schedule_work(&motg->sm_work);
-		} else {
-			otg->gadget = NULL;
-		}
-
-		return 0;
-	}
-	otg->gadget = gadget;
-	dev_dbg(otg->usb_phy->dev,
-		"peripheral driver registered w/ tranceiver\n");
-
-	pm_runtime_get_sync(otg->usb_phy->dev);
-	schedule_work(&motg->sm_work);
-
-	return 0;
-}
-
-static bool msm_chg_check_secondary_det(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 chg_det;
-	bool ret = false;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		ret = chg_det & (1 << 4);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x87);
-		ret = chg_det & 1;
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static void msm_chg_enable_secondary_det(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 chg_det;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		/* Turn off charger block */
-		chg_det |= ~(1 << 1);
-		ulpi_write(phy, chg_det, 0x34);
-		udelay(20);
-		/* control chg block via ULPI */
-		chg_det &= ~(1 << 3);
-		ulpi_write(phy, chg_det, 0x34);
-		/* put it in host mode for enabling D- source */
-		chg_det &= ~(1 << 2);
-		ulpi_write(phy, chg_det, 0x34);
-		/* Turn on chg detect block */
-		chg_det &= ~(1 << 1);
-		ulpi_write(phy, chg_det, 0x34);
-		udelay(20);
-		/* enable chg detection */
-		chg_det &= ~(1 << 0);
-		ulpi_write(phy, chg_det, 0x34);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		/*
-		 * Configure DM as current source, DP as current sink
-		 * and enable battery charging comparators.
-		 */
-		ulpi_write(phy, 0x8, 0x85);
-		ulpi_write(phy, 0x2, 0x85);
-		ulpi_write(phy, 0x1, 0x85);
-		break;
-	default:
-		break;
-	}
-}
-
-static bool msm_chg_check_primary_det(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 chg_det;
-	bool ret = false;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		ret = chg_det & (1 << 4);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x87);
-		ret = chg_det & 1;
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static void msm_chg_enable_primary_det(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 chg_det;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		/* enable chg detection */
-		chg_det &= ~(1 << 0);
-		ulpi_write(phy, chg_det, 0x34);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		/*
-		 * Configure DP as current source, DM as current sink
-		 * and enable battery charging comparators.
-		 */
-		ulpi_write(phy, 0x2, 0x85);
-		ulpi_write(phy, 0x1, 0x85);
-		break;
-	default:
-		break;
-	}
-}
-
-static bool msm_chg_check_dcd(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 line_state;
-	bool ret = false;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		line_state = ulpi_read(phy, 0x15);
-		ret = !(line_state & 1);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		line_state = ulpi_read(phy, 0x87);
-		ret = line_state & 2;
-		break;
-	default:
-		break;
-	}
-	return ret;
-}
-
-static void msm_chg_disable_dcd(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 chg_det;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		chg_det &= ~(1 << 5);
-		ulpi_write(phy, chg_det, 0x34);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		ulpi_write(phy, 0x10, 0x86);
-		break;
-	default:
-		break;
-	}
-}
-
-static void msm_chg_enable_dcd(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 chg_det;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		/* Turn on D+ current source */
-		chg_det |= (1 << 5);
-		ulpi_write(phy, chg_det, 0x34);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		/* Data contact detection enable */
-		ulpi_write(phy, 0x10, 0x85);
-		break;
-	default:
-		break;
-	}
-}
-
-static void msm_chg_block_on(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 func_ctrl, chg_det;
-
-	/* put the controller in non-driving mode */
-	func_ctrl = ulpi_read(phy, ULPI_FUNC_CTRL);
-	func_ctrl &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-	func_ctrl |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
-	ulpi_write(phy, func_ctrl, ULPI_FUNC_CTRL);
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		/* control chg block via ULPI */
-		chg_det &= ~(1 << 3);
-		ulpi_write(phy, chg_det, 0x34);
-		/* Turn on chg detect block */
-		chg_det &= ~(1 << 1);
-		ulpi_write(phy, chg_det, 0x34);
-		udelay(20);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		/* Clear charger detecting control bits */
-		ulpi_write(phy, 0x3F, 0x86);
-		/* Clear alt interrupt latch and enable bits */
-		ulpi_write(phy, 0x1F, 0x92);
-		ulpi_write(phy, 0x1F, 0x95);
-		udelay(100);
-		break;
-	default:
-		break;
-	}
-}
-
-static void msm_chg_block_off(struct msm_otg *motg)
-{
-	struct usb_phy *phy = &motg->phy;
-	u32 func_ctrl, chg_det;
-
-	switch (motg->pdata->phy_type) {
-	case CI_45NM_INTEGRATED_PHY:
-		chg_det = ulpi_read(phy, 0x34);
-		/* Turn off charger block */
-		chg_det |= ~(1 << 1);
-		ulpi_write(phy, chg_det, 0x34);
-		break;
-	case SNPS_28NM_INTEGRATED_PHY:
-		/* Clear charger detecting control bits */
-		ulpi_write(phy, 0x3F, 0x86);
-		/* Clear alt interrupt latch and enable bits */
-		ulpi_write(phy, 0x1F, 0x92);
-		ulpi_write(phy, 0x1F, 0x95);
-		break;
-	default:
-		break;
-	}
-
-	/* put the controller in normal mode */
-	func_ctrl = ulpi_read(phy, ULPI_FUNC_CTRL);
-	func_ctrl &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-	func_ctrl |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
-	ulpi_write(phy, func_ctrl, ULPI_FUNC_CTRL);
-}
-
-#define MSM_CHG_DCD_POLL_TIME		(100 * HZ/1000) /* 100 msec */
-#define MSM_CHG_DCD_MAX_RETRIES		6 /* Tdcd_tmout = 6 * 100 msec */
-#define MSM_CHG_PRIMARY_DET_TIME	(40 * HZ/1000) /* TVDPSRC_ON */
-#define MSM_CHG_SECONDARY_DET_TIME	(40 * HZ/1000) /* TVDMSRC_ON */
-static void msm_chg_detect_work(struct work_struct *w)
-{
-	struct msm_otg *motg = container_of(w, struct msm_otg, chg_work.work);
-	struct usb_phy *phy = &motg->phy;
-	bool is_dcd, tmout, vout;
-	unsigned long delay;
-
-	dev_dbg(phy->dev, "chg detection work\n");
-	switch (motg->chg_state) {
-	case USB_CHG_STATE_UNDEFINED:
-		pm_runtime_get_sync(phy->dev);
-		msm_chg_block_on(motg);
-		msm_chg_enable_dcd(motg);
-		motg->chg_state = USB_CHG_STATE_WAIT_FOR_DCD;
-		motg->dcd_retries = 0;
-		delay = MSM_CHG_DCD_POLL_TIME;
-		break;
-	case USB_CHG_STATE_WAIT_FOR_DCD:
-		is_dcd = msm_chg_check_dcd(motg);
-		tmout = ++motg->dcd_retries == MSM_CHG_DCD_MAX_RETRIES;
-		if (is_dcd || tmout) {
-			msm_chg_disable_dcd(motg);
-			msm_chg_enable_primary_det(motg);
-			delay = MSM_CHG_PRIMARY_DET_TIME;
-			motg->chg_state = USB_CHG_STATE_DCD_DONE;
-		} else {
-			delay = MSM_CHG_DCD_POLL_TIME;
-		}
-		break;
-	case USB_CHG_STATE_DCD_DONE:
-		vout = msm_chg_check_primary_det(motg);
-		if (vout) {
-			msm_chg_enable_secondary_det(motg);
-			delay = MSM_CHG_SECONDARY_DET_TIME;
-			motg->chg_state = USB_CHG_STATE_PRIMARY_DONE;
-		} else {
-			motg->chg_type = USB_SDP_CHARGER;
-			motg->chg_state = USB_CHG_STATE_DETECTED;
-			delay = 0;
-		}
-		break;
-	case USB_CHG_STATE_PRIMARY_DONE:
-		vout = msm_chg_check_secondary_det(motg);
-		if (vout)
-			motg->chg_type = USB_DCP_CHARGER;
-		else
-			motg->chg_type = USB_CDP_CHARGER;
-		motg->chg_state = USB_CHG_STATE_SECONDARY_DONE;
-		/* fall through */
-	case USB_CHG_STATE_SECONDARY_DONE:
-		motg->chg_state = USB_CHG_STATE_DETECTED;
-	case USB_CHG_STATE_DETECTED:
-		msm_chg_block_off(motg);
-		dev_dbg(phy->dev, "charger = %d\n", motg->chg_type);
-		schedule_work(&motg->sm_work);
-		return;
-	default:
-		return;
-	}
-
-	schedule_delayed_work(&motg->chg_work, delay);
-}
-
-/*
- * We support OTG, Peripheral only and Host only configurations. In case
- * of OTG, mode switch (host-->peripheral/peripheral-->host) can happen
- * via Id pin status or user request (debugfs). Id/BSV interrupts are not
- * enabled when switch is controlled by user and default mode is supplied
- * by board file, which can be changed by userspace later.
- */
-static void msm_otg_init_sm(struct msm_otg *motg)
-{
-	struct msm_otg_platform_data *pdata = motg->pdata;
-	u32 otgsc = readl(USB_OTGSC);
-
-	switch (pdata->mode) {
-	case USB_DR_MODE_OTG:
-		if (pdata->otg_control == OTG_PHY_CONTROL) {
-			if (otgsc & OTGSC_ID)
-				set_bit(ID, &motg->inputs);
-			else
-				clear_bit(ID, &motg->inputs);
-
-			if (otgsc & OTGSC_BSV)
-				set_bit(B_SESS_VLD, &motg->inputs);
-			else
-				clear_bit(B_SESS_VLD, &motg->inputs);
-		} else if (pdata->otg_control == OTG_USER_CONTROL) {
-				set_bit(ID, &motg->inputs);
-				clear_bit(B_SESS_VLD, &motg->inputs);
-		}
-		break;
-	case USB_DR_MODE_HOST:
-		clear_bit(ID, &motg->inputs);
-		break;
-	case USB_DR_MODE_PERIPHERAL:
-		set_bit(ID, &motg->inputs);
-		if (otgsc & OTGSC_BSV)
-			set_bit(B_SESS_VLD, &motg->inputs);
-		else
-			clear_bit(B_SESS_VLD, &motg->inputs);
-		break;
-	default:
-		break;
-	}
-}
-
-static void msm_otg_sm_work(struct work_struct *w)
-{
-	struct msm_otg *motg = container_of(w, struct msm_otg, sm_work);
-	struct usb_otg *otg = motg->phy.otg;
-
-	switch (otg->state) {
-	case OTG_STATE_UNDEFINED:
-		dev_dbg(otg->usb_phy->dev, "OTG_STATE_UNDEFINED state\n");
-		msm_otg_reset(otg->usb_phy);
-		msm_otg_init_sm(motg);
-		otg->state = OTG_STATE_B_IDLE;
-		/* FALL THROUGH */
-	case OTG_STATE_B_IDLE:
-		dev_dbg(otg->usb_phy->dev, "OTG_STATE_B_IDLE state\n");
-		if (!test_bit(ID, &motg->inputs) && otg->host) {
-			/* disable BSV bit */
-			writel(readl(USB_OTGSC) & ~OTGSC_BSVIE, USB_OTGSC);
-			msm_otg_start_host(otg->usb_phy, 1);
-			otg->state = OTG_STATE_A_HOST;
-		} else if (test_bit(B_SESS_VLD, &motg->inputs)) {
-			switch (motg->chg_state) {
-			case USB_CHG_STATE_UNDEFINED:
-				msm_chg_detect_work(&motg->chg_work.work);
-				break;
-			case USB_CHG_STATE_DETECTED:
-				switch (motg->chg_type) {
-				case USB_DCP_CHARGER:
-					msm_otg_notify_charger(motg,
-							IDEV_CHG_MAX);
-					break;
-				case USB_CDP_CHARGER:
-					msm_otg_notify_charger(motg,
-							IDEV_CHG_MAX);
-					msm_otg_start_peripheral(otg->usb_phy,
-								 1);
-					otg->state
-						= OTG_STATE_B_PERIPHERAL;
-					break;
-				case USB_SDP_CHARGER:
-					msm_otg_notify_charger(motg, IUNIT);
-					msm_otg_start_peripheral(otg->usb_phy,
-								 1);
-					otg->state
-						= OTG_STATE_B_PERIPHERAL;
-					break;
-				default:
-					break;
-				}
-				break;
-			default:
-				break;
-			}
-		} else {
-			/*
-			 * If charger detection work is pending, decrement
-			 * the pm usage counter to balance with the one that
-			 * is incremented in charger detection work.
-			 */
-			if (cancel_delayed_work_sync(&motg->chg_work)) {
-				pm_runtime_put_sync(otg->usb_phy->dev);
-				msm_otg_reset(otg->usb_phy);
-			}
-			msm_otg_notify_charger(motg, 0);
-			motg->chg_state = USB_CHG_STATE_UNDEFINED;
-			motg->chg_type = USB_INVALID_CHARGER;
-		}
-
-		if (otg->state == OTG_STATE_B_IDLE)
-			pm_runtime_put_sync(otg->usb_phy->dev);
-		break;
-	case OTG_STATE_B_PERIPHERAL:
-		dev_dbg(otg->usb_phy->dev, "OTG_STATE_B_PERIPHERAL state\n");
-		if (!test_bit(B_SESS_VLD, &motg->inputs) ||
-				!test_bit(ID, &motg->inputs)) {
-			msm_otg_notify_charger(motg, 0);
-			msm_otg_start_peripheral(otg->usb_phy, 0);
-			motg->chg_state = USB_CHG_STATE_UNDEFINED;
-			motg->chg_type = USB_INVALID_CHARGER;
-			otg->state = OTG_STATE_B_IDLE;
-			msm_otg_reset(otg->usb_phy);
-			schedule_work(w);
-		}
-		break;
-	case OTG_STATE_A_HOST:
-		dev_dbg(otg->usb_phy->dev, "OTG_STATE_A_HOST state\n");
-		if (test_bit(ID, &motg->inputs)) {
-			msm_otg_start_host(otg->usb_phy, 0);
-			otg->state = OTG_STATE_B_IDLE;
-			msm_otg_reset(otg->usb_phy);
-			schedule_work(w);
-		}
-		break;
-	default:
-		break;
-	}
-}
-
-static irqreturn_t msm_otg_irq(int irq, void *data)
-{
-	struct msm_otg *motg = data;
-	struct usb_phy *phy = &motg->phy;
-	u32 otgsc = 0;
-
-	if (atomic_read(&motg->in_lpm)) {
-		disable_irq_nosync(irq);
-		motg->async_int = 1;
-		pm_runtime_get(phy->dev);
-		return IRQ_HANDLED;
-	}
-
-	otgsc = readl(USB_OTGSC);
-	if (!(otgsc & (OTGSC_IDIS | OTGSC_BSVIS)))
-		return IRQ_NONE;
-
-	if ((otgsc & OTGSC_IDIS) && (otgsc & OTGSC_IDIE)) {
-		if (otgsc & OTGSC_ID)
-			set_bit(ID, &motg->inputs);
-		else
-			clear_bit(ID, &motg->inputs);
-		dev_dbg(phy->dev, "ID set/clear\n");
-		pm_runtime_get_noresume(phy->dev);
-	} else if ((otgsc & OTGSC_BSVIS) && (otgsc & OTGSC_BSVIE)) {
-		if (otgsc & OTGSC_BSV)
-			set_bit(B_SESS_VLD, &motg->inputs);
-		else
-			clear_bit(B_SESS_VLD, &motg->inputs);
-		dev_dbg(phy->dev, "BSV set/clear\n");
-		pm_runtime_get_noresume(phy->dev);
-	}
-
-	writel(otgsc, USB_OTGSC);
-	schedule_work(&motg->sm_work);
-	return IRQ_HANDLED;
-}
-
-static int msm_otg_mode_show(struct seq_file *s, void *unused)
-{
-	struct msm_otg *motg = s->private;
-	struct usb_otg *otg = motg->phy.otg;
-
-	switch (otg->state) {
-	case OTG_STATE_A_HOST:
-		seq_puts(s, "host\n");
-		break;
-	case OTG_STATE_B_PERIPHERAL:
-		seq_puts(s, "peripheral\n");
-		break;
-	default:
-		seq_puts(s, "none\n");
-		break;
-	}
-
-	return 0;
-}
-
-static int msm_otg_mode_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, msm_otg_mode_show, inode->i_private);
-}
-
-static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
-				size_t count, loff_t *ppos)
-{
-	struct seq_file *s = file->private_data;
-	struct msm_otg *motg = s->private;
-	char buf[16];
-	struct usb_otg *otg = motg->phy.otg;
-	int status = count;
-	enum usb_dr_mode req_mode;
-
-	memset(buf, 0x00, sizeof(buf));
-
-	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count))) {
-		status = -EFAULT;
-		goto out;
-	}
-
-	if (!strncmp(buf, "host", 4)) {
-		req_mode = USB_DR_MODE_HOST;
-	} else if (!strncmp(buf, "peripheral", 10)) {
-		req_mode = USB_DR_MODE_PERIPHERAL;
-	} else if (!strncmp(buf, "none", 4)) {
-		req_mode = USB_DR_MODE_UNKNOWN;
-	} else {
-		status = -EINVAL;
-		goto out;
-	}
-
-	switch (req_mode) {
-	case USB_DR_MODE_UNKNOWN:
-		switch (otg->state) {
-		case OTG_STATE_A_HOST:
-		case OTG_STATE_B_PERIPHERAL:
-			set_bit(ID, &motg->inputs);
-			clear_bit(B_SESS_VLD, &motg->inputs);
-			break;
-		default:
-			goto out;
-		}
-		break;
-	case USB_DR_MODE_PERIPHERAL:
-		switch (otg->state) {
-		case OTG_STATE_B_IDLE:
-		case OTG_STATE_A_HOST:
-			set_bit(ID, &motg->inputs);
-			set_bit(B_SESS_VLD, &motg->inputs);
-			break;
-		default:
-			goto out;
-		}
-		break;
-	case USB_DR_MODE_HOST:
-		switch (otg->state) {
-		case OTG_STATE_B_IDLE:
-		case OTG_STATE_B_PERIPHERAL:
-			clear_bit(ID, &motg->inputs);
-			break;
-		default:
-			goto out;
-		}
-		break;
-	default:
-		goto out;
-	}
-
-	pm_runtime_get_sync(otg->usb_phy->dev);
-	schedule_work(&motg->sm_work);
-out:
-	return status;
-}
-
-static const struct file_operations msm_otg_mode_fops = {
-	.open = msm_otg_mode_open,
-	.read = seq_read,
-	.write = msm_otg_mode_write,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static struct dentry *msm_otg_dbg_root;
-static struct dentry *msm_otg_dbg_mode;
-
-static int msm_otg_debugfs_init(struct msm_otg *motg)
-{
-	msm_otg_dbg_root = debugfs_create_dir("msm_otg", NULL);
-
-	if (!msm_otg_dbg_root || IS_ERR(msm_otg_dbg_root))
-		return -ENODEV;
-
-	msm_otg_dbg_mode = debugfs_create_file("mode", S_IRUGO | S_IWUSR,
-				msm_otg_dbg_root, motg, &msm_otg_mode_fops);
-	if (!msm_otg_dbg_mode) {
-		debugfs_remove(msm_otg_dbg_root);
-		msm_otg_dbg_root = NULL;
-		return -ENODEV;
-	}
-
-	return 0;
-}
-
-static void msm_otg_debugfs_cleanup(void)
-{
-	debugfs_remove(msm_otg_dbg_mode);
-	debugfs_remove(msm_otg_dbg_root);
-}
-
-static const struct of_device_id msm_otg_dt_match[] = {
-	{
-		.compatible = "qcom,usb-otg-ci",
-		.data = (void *) CI_45NM_INTEGRATED_PHY
-	},
-	{
-		.compatible = "qcom,usb-otg-snps",
-		.data = (void *) SNPS_28NM_INTEGRATED_PHY
-	},
-	{ }
-};
-MODULE_DEVICE_TABLE(of, msm_otg_dt_match);
-
-static int msm_otg_vbus_notifier(struct notifier_block *nb, unsigned long event,
-				void *ptr)
-{
-	struct usb_phy *usb_phy = container_of(nb, struct usb_phy, vbus_nb);
-	struct msm_otg *motg = container_of(usb_phy, struct msm_otg, phy);
-
-	if (event)
-		set_bit(B_SESS_VLD, &motg->inputs);
-	else
-		clear_bit(B_SESS_VLD, &motg->inputs);
-
-	if (test_bit(B_SESS_VLD, &motg->inputs)) {
-		/* Switch D+/D- lines to Device connector */
-		gpiod_set_value_cansleep(motg->switch_gpio, 0);
-	} else {
-		/* Switch D+/D- lines to Hub */
-		gpiod_set_value_cansleep(motg->switch_gpio, 1);
-	}
-
-	schedule_work(&motg->sm_work);
-
-	return NOTIFY_DONE;
-}
-
-static int msm_otg_id_notifier(struct notifier_block *nb, unsigned long event,
-				void *ptr)
-{
-	struct usb_phy *usb_phy = container_of(nb, struct usb_phy, id_nb);
-	struct msm_otg *motg = container_of(usb_phy, struct msm_otg, phy);
-
-	if (event)
-		clear_bit(ID, &motg->inputs);
-	else
-		set_bit(ID, &motg->inputs);
-
-	schedule_work(&motg->sm_work);
-
-	return NOTIFY_DONE;
-}
-
-static int msm_otg_read_dt(struct platform_device *pdev, struct msm_otg *motg)
-{
-	struct msm_otg_platform_data *pdata;
-	struct device_node *node = pdev->dev.of_node;
-	struct property *prop;
-	int len, ret, words;
-	u32 val, tmp[3];
-
-	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return -ENOMEM;
-
-	motg->pdata = pdata;
-
-	pdata->phy_type = (enum msm_usb_phy_type)of_device_get_match_data(&pdev->dev);
-	if (!pdata->phy_type)
-		return 1;
-
-	motg->link_rst = devm_reset_control_get(&pdev->dev, "link");
-	if (IS_ERR(motg->link_rst))
-		return PTR_ERR(motg->link_rst);
-
-	motg->phy_rst = devm_reset_control_get(&pdev->dev, "phy");
-	if (IS_ERR(motg->phy_rst))
-		motg->phy_rst = NULL;
-
-	pdata->mode = usb_get_dr_mode(&pdev->dev);
-	if (pdata->mode == USB_DR_MODE_UNKNOWN)
-		pdata->mode = USB_DR_MODE_OTG;
-
-	pdata->otg_control = OTG_PHY_CONTROL;
-	if (!of_property_read_u32(node, "qcom,otg-control", &val))
-		if (val == OTG_PMIC_CONTROL)
-			pdata->otg_control = val;
-
-	if (!of_property_read_u32(node, "qcom,phy-num", &val) && val < 2)
-		motg->phy_number = val;
-
-	motg->vdd_levels[VDD_LEVEL_NONE] = USB_PHY_SUSP_DIG_VOL;
-	motg->vdd_levels[VDD_LEVEL_MIN] = USB_PHY_VDD_DIG_VOL_MIN;
-	motg->vdd_levels[VDD_LEVEL_MAX] = USB_PHY_VDD_DIG_VOL_MAX;
-
-	if (of_get_property(node, "qcom,vdd-levels", &len) &&
-	    len == sizeof(tmp)) {
-		of_property_read_u32_array(node, "qcom,vdd-levels",
-					   tmp, len / sizeof(*tmp));
-		motg->vdd_levels[VDD_LEVEL_NONE] = tmp[VDD_LEVEL_NONE];
-		motg->vdd_levels[VDD_LEVEL_MIN] = tmp[VDD_LEVEL_MIN];
-		motg->vdd_levels[VDD_LEVEL_MAX] = tmp[VDD_LEVEL_MAX];
-	}
-
-	motg->manual_pullup = of_property_read_bool(node, "qcom,manual-pullup");
-
-	motg->switch_gpio = devm_gpiod_get_optional(&pdev->dev, "switch",
-						    GPIOD_OUT_LOW);
-	if (IS_ERR(motg->switch_gpio))
-		return PTR_ERR(motg->switch_gpio);
-
-	prop = of_find_property(node, "qcom,phy-init-sequence", &len);
-	if (!prop || !len)
-		return 0;
-
-	words = len / sizeof(u32);
-
-	if (words >= ULPI_EXT_VENDOR_SPECIFIC) {
-		dev_warn(&pdev->dev, "Too big PHY init sequence %d\n", words);
-		return 0;
-	}
-
-	pdata->phy_init_seq = devm_kzalloc(&pdev->dev, len, GFP_KERNEL);
-	if (!pdata->phy_init_seq)
-		return 0;
-
-	ret = of_property_read_u32_array(node, "qcom,phy-init-sequence",
-					 pdata->phy_init_seq, words);
-	if (!ret)
-		pdata->phy_init_sz = words;
-
-	return 0;
-}
-
-static int msm_otg_reboot_notify(struct notifier_block *this,
-				 unsigned long code, void *unused)
-{
-	struct msm_otg *motg = container_of(this, struct msm_otg, reboot);
-
-	/*
-	 * Ensure that D+/D- lines are routed to uB connector, so
-	 * we could load bootloader/kernel at next reboot
-	 */
-	gpiod_set_value_cansleep(motg->switch_gpio, 0);
-	return NOTIFY_DONE;
-}
-
-static int msm_otg_probe(struct platform_device *pdev)
-{
-	int ret = 0;
-	struct device_node *np = pdev->dev.of_node;
-	struct msm_otg_platform_data *pdata;
-	struct resource *res;
-	struct msm_otg *motg;
-	struct usb_phy *phy;
-	void __iomem *phy_select;
-
-	motg = devm_kzalloc(&pdev->dev, sizeof(struct msm_otg), GFP_KERNEL);
-	if (!motg)
-		return -ENOMEM;
-
-	motg->phy.otg = devm_kzalloc(&pdev->dev, sizeof(struct usb_otg),
-				     GFP_KERNEL);
-	if (!motg->phy.otg)
-		return -ENOMEM;
-
-	phy = &motg->phy;
-	phy->dev = &pdev->dev;
-
-	motg->clk = devm_clk_get(&pdev->dev, np ? "core" : "usb_hs_clk");
-	if (IS_ERR(motg->clk)) {
-		dev_err(&pdev->dev, "failed to get usb_hs_clk\n");
-		return PTR_ERR(motg->clk);
-	}
-
-	/*
-	 * If USB Core is running its protocol engine based on CORE CLK,
-	 * CORE CLK  must be running at >55Mhz for correct HSUSB
-	 * operation and USB core cannot tolerate frequency changes on
-	 * CORE CLK.
-	 */
-	motg->pclk = devm_clk_get(&pdev->dev, np ? "iface" : "usb_hs_pclk");
-	if (IS_ERR(motg->pclk)) {
-		dev_err(&pdev->dev, "failed to get usb_hs_pclk\n");
-		return PTR_ERR(motg->pclk);
-	}
-
-	/*
-	 * USB core clock is not present on all MSM chips. This
-	 * clock is introduced to remove the dependency on AXI
-	 * bus frequency.
-	 */
-	motg->core_clk = devm_clk_get(&pdev->dev,
-				      np ? "alt_core" : "usb_hs_core_clk");
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -EINVAL;
-	motg->regs = devm_ioremap(&pdev->dev, res->start, resource_size(res));
-	if (!motg->regs)
-		return -ENOMEM;
-
-	pdata = dev_get_platdata(&pdev->dev);
-	if (!pdata) {
-		if (!np)
-			return -ENXIO;
-		ret = msm_otg_read_dt(pdev, motg);
-		if (ret)
-			return ret;
-	}
-
-	/*
-	 * NOTE: The PHYs can be multiplexed between the chipidea controller
-	 * and the dwc3 controller, using a single bit. It is important that
-	 * the dwc3 driver does not set this bit in an incompatible way.
-	 */
-	if (motg->phy_number) {
-		phy_select = devm_ioremap_nocache(&pdev->dev, USB2_PHY_SEL, 4);
-		if (!phy_select)
-			return -ENOMEM;
-
-		/* Enable second PHY with the OTG port */
-		writel(0x1, phy_select);
-	}
-
-	dev_info(&pdev->dev, "OTG regs = %p\n", motg->regs);
-
-	motg->irq = platform_get_irq(pdev, 0);
-	if (motg->irq < 0) {
-		dev_err(&pdev->dev, "platform_get_irq failed\n");
-		ret = motg->irq;
-		return motg->irq;
-	}
-
-	motg->supplies[0].supply = "vddcx";
-	motg->supplies[1].supply = "v3p3";
-	motg->supplies[2].supply = "v1p8";
-
-	ret = devm_regulator_bulk_get(motg->phy.dev, ARRAY_SIZE(motg->supplies),
-				      motg->supplies);
-	if (ret)
-		return ret;
-
-	motg->vddcx = motg->supplies[0].consumer;
-	motg->v3p3  = motg->supplies[1].consumer;
-	motg->v1p8  = motg->supplies[2].consumer;
-
-	clk_set_rate(motg->clk, 60000000);
-
-	clk_prepare_enable(motg->clk);
-	clk_prepare_enable(motg->pclk);
-
-	if (!IS_ERR(motg->core_clk))
-		clk_prepare_enable(motg->core_clk);
-
-	ret = msm_hsusb_init_vddcx(motg, 1);
-	if (ret) {
-		dev_err(&pdev->dev, "hsusb vddcx configuration failed\n");
-		goto disable_clks;
-	}
-
-	ret = msm_hsusb_ldo_init(motg, 1);
-	if (ret) {
-		dev_err(&pdev->dev, "hsusb vreg configuration failed\n");
-		goto disable_vddcx;
-	}
-	ret = msm_hsusb_ldo_set_mode(motg, 1);
-	if (ret) {
-		dev_err(&pdev->dev, "hsusb vreg enable failed\n");
-		goto disable_ldo;
-	}
-
-	writel(0, USB_USBINTR);
-	writel(0, USB_OTGSC);
-
-	INIT_WORK(&motg->sm_work, msm_otg_sm_work);
-	INIT_DELAYED_WORK(&motg->chg_work, msm_chg_detect_work);
-	ret = devm_request_irq(&pdev->dev, motg->irq, msm_otg_irq, IRQF_SHARED,
-					"msm_otg", motg);
-	if (ret) {
-		dev_err(&pdev->dev, "request irq failed\n");
-		goto disable_ldo;
-	}
-
-	phy->init = msm_phy_init;
-	phy->notify_disconnect = msm_phy_notify_disconnect;
-	phy->type = USB_PHY_TYPE_USB2;
-	phy->vbus_nb.notifier_call = msm_otg_vbus_notifier;
-	phy->id_nb.notifier_call = msm_otg_id_notifier;
-
-	phy->io_ops = &msm_otg_io_ops;
-
-	phy->otg->usb_phy = &motg->phy;
-	phy->otg->set_host = msm_otg_set_host;
-	phy->otg->set_peripheral = msm_otg_set_peripheral;
-
-	msm_usb_reset(phy);
-
-	ret = usb_add_phy_dev(&motg->phy);
-	if (ret) {
-		dev_err(&pdev->dev, "usb_add_phy failed\n");
-		goto disable_ldo;
-	}
-
-	ret = extcon_get_state(phy->edev, EXTCON_USB);
-	if (ret)
-		set_bit(B_SESS_VLD, &motg->inputs);
-	else
-		clear_bit(B_SESS_VLD, &motg->inputs);
-
-	ret = extcon_get_state(phy->id_edev, EXTCON_USB_HOST);
-	if (ret)
-		clear_bit(ID, &motg->inputs);
-	else
-		set_bit(ID, &motg->inputs);
-
-	platform_set_drvdata(pdev, motg);
-	device_init_wakeup(&pdev->dev, 1);
-
-	if (motg->pdata->mode == USB_DR_MODE_OTG &&
-		motg->pdata->otg_control == OTG_USER_CONTROL) {
-		ret = msm_otg_debugfs_init(motg);
-		if (ret)
-			dev_dbg(&pdev->dev, "Can not create mode change file\n");
-	}
-
-	if (test_bit(B_SESS_VLD, &motg->inputs)) {
-		/* Switch D+/D- lines to Device connector */
-		gpiod_set_value_cansleep(motg->switch_gpio, 0);
-	} else {
-		/* Switch D+/D- lines to Hub */
-		gpiod_set_value_cansleep(motg->switch_gpio, 1);
-	}
-
-	motg->reboot.notifier_call = msm_otg_reboot_notify;
-	register_reboot_notifier(&motg->reboot);
-
-	pm_runtime_set_active(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
-
-	return 0;
-
-disable_ldo:
-	msm_hsusb_ldo_init(motg, 0);
-disable_vddcx:
-	msm_hsusb_init_vddcx(motg, 0);
-disable_clks:
-	clk_disable_unprepare(motg->pclk);
-	clk_disable_unprepare(motg->clk);
-	if (!IS_ERR(motg->core_clk))
-		clk_disable_unprepare(motg->core_clk);
-
-	return ret;
-}
-
-static int msm_otg_remove(struct platform_device *pdev)
-{
-	struct msm_otg *motg = platform_get_drvdata(pdev);
-	struct usb_phy *phy = &motg->phy;
-	int cnt = 0;
-
-	if (phy->otg->host || phy->otg->gadget)
-		return -EBUSY;
-
-	unregister_reboot_notifier(&motg->reboot);
-
-	/*
-	 * Ensure that D+/D- lines are routed to uB connector, so
-	 * we could load bootloader/kernel at next reboot
-	 */
-	gpiod_set_value_cansleep(motg->switch_gpio, 0);
-
-	msm_otg_debugfs_cleanup();
-	cancel_delayed_work_sync(&motg->chg_work);
-	cancel_work_sync(&motg->sm_work);
-
-	pm_runtime_resume(&pdev->dev);
-
-	device_init_wakeup(&pdev->dev, 0);
-	pm_runtime_disable(&pdev->dev);
-
-	usb_remove_phy(phy);
-	disable_irq(motg->irq);
-
-	/*
-	 * Put PHY in low power mode.
-	 */
-	ulpi_read(phy, 0x14);
-	ulpi_write(phy, 0x08, 0x09);
-
-	writel(readl(USB_PORTSC) | PORTSC_PHCD, USB_PORTSC);
-	while (cnt < PHY_SUSPEND_TIMEOUT_USEC) {
-		if (readl(USB_PORTSC) & PORTSC_PHCD)
-			break;
-		udelay(1);
-		cnt++;
-	}
-	if (cnt >= PHY_SUSPEND_TIMEOUT_USEC)
-		dev_err(phy->dev, "Unable to suspend PHY\n");
-
-	clk_disable_unprepare(motg->pclk);
-	clk_disable_unprepare(motg->clk);
-	if (!IS_ERR(motg->core_clk))
-		clk_disable_unprepare(motg->core_clk);
-	msm_hsusb_ldo_init(motg, 0);
-
-	pm_runtime_set_suspended(&pdev->dev);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int msm_otg_runtime_idle(struct device *dev)
-{
-	struct msm_otg *motg = dev_get_drvdata(dev);
-	struct usb_otg *otg = motg->phy.otg;
-
-	dev_dbg(dev, "OTG runtime idle\n");
-
-	/*
-	 * It is observed some times that a spurious interrupt
-	 * comes when PHY is put into LPM immediately after PHY reset.
-	 * This 1 sec delay also prevents entering into LPM immediately
-	 * after asynchronous interrupt.
-	 */
-	if (otg->state != OTG_STATE_UNDEFINED)
-		pm_schedule_suspend(dev, 1000);
-
-	return -EAGAIN;
-}
-
-static int msm_otg_runtime_suspend(struct device *dev)
-{
-	struct msm_otg *motg = dev_get_drvdata(dev);
-
-	dev_dbg(dev, "OTG runtime suspend\n");
-	return msm_otg_suspend(motg);
-}
-
-static int msm_otg_runtime_resume(struct device *dev)
-{
-	struct msm_otg *motg = dev_get_drvdata(dev);
-
-	dev_dbg(dev, "OTG runtime resume\n");
-	return msm_otg_resume(motg);
-}
-#endif
-
-#ifdef CONFIG_PM_SLEEP
-static int msm_otg_pm_suspend(struct device *dev)
-{
-	struct msm_otg *motg = dev_get_drvdata(dev);
-
-	dev_dbg(dev, "OTG PM suspend\n");
-	return msm_otg_suspend(motg);
-}
-
-static int msm_otg_pm_resume(struct device *dev)
-{
-	struct msm_otg *motg = dev_get_drvdata(dev);
-	int ret;
-
-	dev_dbg(dev, "OTG PM resume\n");
-
-	ret = msm_otg_resume(motg);
-	if (ret)
-		return ret;
-
-	/*
-	 * Runtime PM Documentation recommends bringing the
-	 * device to full powered state upon resume.
-	 */
-	pm_runtime_disable(dev);
-	pm_runtime_set_active(dev);
-	pm_runtime_enable(dev);
-
-	return 0;
-}
-#endif
-
-static const struct dev_pm_ops msm_otg_dev_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(msm_otg_pm_suspend, msm_otg_pm_resume)
-	SET_RUNTIME_PM_OPS(msm_otg_runtime_suspend, msm_otg_runtime_resume,
-				msm_otg_runtime_idle)
-};
-
-static struct platform_driver msm_otg_driver = {
-	.probe = msm_otg_probe,
-	.remove = msm_otg_remove,
-	.driver = {
-		.name = DRIVER_NAME,
-		.pm = &msm_otg_dev_pm_ops,
-		.of_match_table = msm_otg_dt_match,
-	},
-};
-
-module_platform_driver(msm_otg_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("MSM USB transceiver driver");
diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
index 0e315694adc9..554b72282276 100644
--- a/drivers/usb/phy/phy-mv-usb.c
+++ b/drivers/usb/phy/phy-mv-usb.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
  * Author: Chao Xie <chao.xie@marvell.com>
  *	   Neil Zhang <zhangwm@marvell.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #include <linux/module.h>
@@ -87,9 +83,10 @@ static void mv_otg_run_state_machine(struct mv_otg *mvotg,
 	queue_delayed_work(mvotg->qwork, &mvotg->work, delay);
 }
 
-static void mv_otg_timer_await_bcon(unsigned long data)
+static void mv_otg_timer_await_bcon(struct timer_list *t)
 {
-	struct mv_otg *mvotg = (struct mv_otg *) data;
+	struct mv_otg *mvotg = from_timer(mvotg, t,
+					  otg_ctrl.timer[A_WAIT_BCON_TIMER]);
 
 	mvotg->otg_ctrl.a_wait_bcon_timeout = 1;
 
@@ -117,8 +114,7 @@ static int mv_otg_cancel_timer(struct mv_otg *mvotg, unsigned int id)
 }
 
 static int mv_otg_set_timer(struct mv_otg *mvotg, unsigned int id,
-			    unsigned long interval,
-			    void (*callback) (unsigned long))
+			    unsigned long interval)
 {
 	struct timer_list *timer;
 
@@ -131,9 +127,6 @@ static int mv_otg_set_timer(struct mv_otg *mvotg, unsigned int id,
 		return -EBUSY;
 	}
 
-	init_timer(timer);
-	timer->data = (unsigned long) mvotg;
-	timer->function = callback;
 	timer->expires = jiffies + interval;
 	add_timer(timer);
 
@@ -459,8 +452,7 @@ run:
 			if (old_state != OTG_STATE_A_HOST)
 				mv_otg_start_host(mvotg, 1);
 			mv_otg_set_timer(mvotg, A_WAIT_BCON_TIMER,
-					 T_A_WAIT_BCON,
-					 mv_otg_timer_await_bcon);
+					 T_A_WAIT_BCON);
 			/*
 			 * Now, we directly enter A_HOST. So set b_conn = 1
 			 * here. In fact, it need host driver to notify us.
@@ -722,7 +714,8 @@ static int mv_otg_probe(struct platform_device *pdev)
 	otg->set_vbus = mv_otg_set_vbus;
 
 	for (i = 0; i < OTG_TIMER_NUM; i++)
-		init_timer(&mvotg->otg_ctrl.timer[i]);
+		timer_setup(&mvotg->otg_ctrl.timer[i],
+			    mv_otg_timer_await_bcon, 0);
 
 	r = platform_get_resource_byname(mvotg->pdev,
 					 IORESOURCE_MEM, "phyregs");
diff --git a/drivers/usb/phy/phy-mv-usb.h b/drivers/usb/phy/phy-mv-usb.h
index 551da6eb0ba8..96701a1229ad 100644
--- a/drivers/usb/phy/phy-mv-usb.h
+++ b/drivers/usb/phy/phy-mv-usb.h
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
  */
 
 #ifndef	__MV_USB_OTG_CONTROLLER__
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c
index 0e2f1a36d315..da031c45395a 100644
--- a/drivers/usb/phy/phy-mxs-usb.c
+++ b/drivers/usb/phy/phy-mxs-usb.c
@@ -1,14 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2012-2014 Freescale Semiconductor, Inc.
  * Copyright (C) 2012 Marek Vasut <marex@denx.de>
  * on behalf of DENX Software Engineering GmbH
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
  */
 
 #include <linux/module.h>
@@ -67,11 +61,26 @@
 #define ANADIG_ANA_MISC0_SET			0x154
 #define ANADIG_ANA_MISC0_CLR			0x158
 
+#define ANADIG_USB1_CHRG_DETECT_SET		0x1b4
+#define ANADIG_USB1_CHRG_DETECT_CLR		0x1b8
+#define ANADIG_USB1_CHRG_DETECT_EN_B		BIT(20)
+#define ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B	BIT(19)
+#define ANADIG_USB1_CHRG_DETECT_CHK_CONTACT	BIT(18)
+
 #define ANADIG_USB1_VBUS_DET_STAT		0x1c0
+#define ANADIG_USB1_VBUS_DET_STAT_VBUS_VALID	BIT(3)
+
+#define ANADIG_USB1_CHRG_DET_STAT		0x1d0
+#define ANADIG_USB1_CHRG_DET_STAT_DM_STATE	BIT(2)
+#define ANADIG_USB1_CHRG_DET_STAT_CHRG_DETECTED	BIT(1)
+#define ANADIG_USB1_CHRG_DET_STAT_PLUG_CONTACT	BIT(0)
+
 #define ANADIG_USB2_VBUS_DET_STAT		0x220
 
 #define ANADIG_USB1_LOOPBACK_SET		0x1e4
 #define ANADIG_USB1_LOOPBACK_CLR		0x1e8
+#define ANADIG_USB1_LOOPBACK_UTMI_TESTSTART	BIT(0)
+
 #define ANADIG_USB2_LOOPBACK_SET		0x244
 #define ANADIG_USB2_LOOPBACK_CLR		0x248
 
@@ -479,6 +488,144 @@ static int mxs_phy_on_disconnect(struct usb_phy *phy,
 	return 0;
 }
 
+#define MXS_USB_CHARGER_DATA_CONTACT_TIMEOUT	100
+static int mxs_charger_data_contact_detect(struct mxs_phy *x)
+{
+	struct regmap *regmap = x->regmap_anatop;
+	int i, stable_contact_count = 0;
+	u32 val;
+
+	/* Check if vbus is valid */
+	regmap_read(regmap, ANADIG_USB1_VBUS_DET_STAT, &val);
+	if (!(val & ANADIG_USB1_VBUS_DET_STAT_VBUS_VALID)) {
+		dev_err(x->phy.dev, "vbus is not valid\n");
+		return -EINVAL;
+	}
+
+	/* Enable charger detector */
+	regmap_write(regmap, ANADIG_USB1_CHRG_DETECT_CLR,
+				ANADIG_USB1_CHRG_DETECT_EN_B);
+	/*
+	 * - Do not check whether a charger is connected to the USB port
+	 * - Check whether the USB plug has been in contact with each other
+	 */
+	regmap_write(regmap, ANADIG_USB1_CHRG_DETECT_SET,
+			ANADIG_USB1_CHRG_DETECT_CHK_CONTACT |
+			ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B);
+
+	/* Check if plug is connected */
+	for (i = 0; i < MXS_USB_CHARGER_DATA_CONTACT_TIMEOUT; i++) {
+		regmap_read(regmap, ANADIG_USB1_CHRG_DET_STAT, &val);
+		if (val & ANADIG_USB1_CHRG_DET_STAT_PLUG_CONTACT) {
+			stable_contact_count++;
+			if (stable_contact_count > 5)
+				/* Data pin makes contact */
+				break;
+			else
+				usleep_range(5000, 10000);
+		} else {
+			stable_contact_count = 0;
+			usleep_range(5000, 6000);
+		}
+	}
+
+	if (i == MXS_USB_CHARGER_DATA_CONTACT_TIMEOUT) {
+		dev_err(x->phy.dev,
+			"Data pin can't make good contact.\n");
+		/* Disable charger detector */
+		regmap_write(regmap, ANADIG_USB1_CHRG_DETECT_SET,
+				ANADIG_USB1_CHRG_DETECT_EN_B |
+				ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B);
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static enum usb_charger_type mxs_charger_primary_detection(struct mxs_phy *x)
+{
+	struct regmap *regmap = x->regmap_anatop;
+	enum usb_charger_type chgr_type = UNKNOWN_TYPE;
+	u32 val;
+
+	/*
+	 * - Do check whether a charger is connected to the USB port
+	 * - Do not Check whether the USB plug has been in contact with
+	 *   each other
+	 */
+	regmap_write(regmap, ANADIG_USB1_CHRG_DETECT_CLR,
+			ANADIG_USB1_CHRG_DETECT_CHK_CONTACT |
+			ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B);
+
+	msleep(100);
+
+	/* Check if it is a charger */
+	regmap_read(regmap, ANADIG_USB1_CHRG_DET_STAT, &val);
+	if (!(val & ANADIG_USB1_CHRG_DET_STAT_CHRG_DETECTED)) {
+		chgr_type = SDP_TYPE;
+		dev_dbg(x->phy.dev, "It is a stardard downstream port\n");
+	}
+
+	/* Disable charger detector */
+	regmap_write(regmap, ANADIG_USB1_CHRG_DETECT_SET,
+			ANADIG_USB1_CHRG_DETECT_EN_B |
+			ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B);
+
+	return chgr_type;
+}
+
+/*
+ * It must be called after DP is pulled up, which is used to
+ * differentiate DCP and CDP.
+ */
+enum usb_charger_type mxs_charger_secondary_detection(struct mxs_phy *x)
+{
+	struct regmap *regmap = x->regmap_anatop;
+	int val;
+
+	msleep(80);
+
+	regmap_read(regmap, ANADIG_USB1_CHRG_DET_STAT, &val);
+	if (val & ANADIG_USB1_CHRG_DET_STAT_DM_STATE) {
+		dev_dbg(x->phy.dev, "It is a dedicate charging port\n");
+		return DCP_TYPE;
+	} else {
+		dev_dbg(x->phy.dev, "It is a charging downstream port\n");
+		return CDP_TYPE;
+	}
+}
+
+static enum usb_charger_type mxs_phy_charger_detect(struct usb_phy *phy)
+{
+	struct mxs_phy *mxs_phy = to_mxs_phy(phy);
+	struct regmap *regmap = mxs_phy->regmap_anatop;
+	void __iomem *base = phy->io_priv;
+	enum usb_charger_type chgr_type = UNKNOWN_TYPE;
+
+	if (mxs_charger_data_contact_detect(mxs_phy))
+		return chgr_type;
+
+	chgr_type = mxs_charger_primary_detection(mxs_phy);
+
+	if (chgr_type != SDP_TYPE) {
+		/* Pull up DP via test */
+		writel_relaxed(BM_USBPHY_DEBUG_CLKGATE,
+				base + HW_USBPHY_DEBUG_CLR);
+		regmap_write(regmap, ANADIG_USB1_LOOPBACK_SET,
+				ANADIG_USB1_LOOPBACK_UTMI_TESTSTART);
+
+		chgr_type = mxs_charger_secondary_detection(mxs_phy);
+
+		/* Stop the test */
+		regmap_write(regmap, ANADIG_USB1_LOOPBACK_CLR,
+				ANADIG_USB1_LOOPBACK_UTMI_TESTSTART);
+		writel_relaxed(BM_USBPHY_DEBUG_CLKGATE,
+				base + HW_USBPHY_DEBUG_SET);
+	}
+
+	return chgr_type;
+}
+
 static int mxs_phy_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -567,6 +714,7 @@ static int mxs_phy_probe(struct platform_device *pdev)
 	mxs_phy->phy.notify_disconnect	= mxs_phy_on_disconnect;
 	mxs_phy->phy.type		= USB_PHY_TYPE_USB2;
 	mxs_phy->phy.set_wakeup		= mxs_phy_set_wakeup;
+	mxs_phy->phy.charger_detect	= mxs_phy_charger_detect;
 
 	mxs_phy->clk = clk;
 	mxs_phy->data = of_id->data;
diff --git a/drivers/usb/phy/phy-omap-otg.c b/drivers/usb/phy/phy-omap-otg.c
index 800d1d90753d..ee0863c6553e 100644
--- a/drivers/usb/phy/phy-omap-otg.c
+++ b/drivers/usb/phy/phy-omap-otg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OMAP OTG controller driver
  *
@@ -6,15 +7,6 @@
  * Copyright (C) 2005-2006 Nokia Corporation
  * Copyright (C) 2004 Texas Instruments
  * Copyright (C) 2004 David Brownell
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 #include <linux/io.h>
diff --git a/drivers/usb/phy/phy-qcom-8x16-usb.c b/drivers/usb/phy/phy-qcom-8x16-usb.c
deleted file mode 100644
index 679afeaaa9a8..000000000000
--- a/drivers/usb/phy/phy-qcom-8x16-usb.c
+++ /dev/null
@@ -1,366 +0,0 @@
-/*
- * Copyright (c) 2015, Linaro Limited
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/err.h>
-#include <linux/extcon.h>
-#include <linux/gpio/consumer.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/platform_device.h>
-#include <linux/reboot.h>
-#include <linux/regulator/consumer.h>
-#include <linux/reset.h>
-#include <linux/slab.h>
-#include <linux/usb.h>
-#include <linux/usb/ulpi.h>
-
-#define HSPHY_AHBBURST			0x0090
-#define HSPHY_AHBMODE			0x0098
-#define HSPHY_GENCONFIG			0x009c
-#define HSPHY_GENCONFIG_2		0x00a0
-
-#define HSPHY_USBCMD			0x0140
-#define HSPHY_ULPI_VIEWPORT		0x0170
-#define HSPHY_CTRL			0x0240
-
-#define HSPHY_TXFIFO_IDLE_FORCE_DIS	BIT(4)
-#define HSPHY_SESS_VLD_CTRL_EN		BIT(7)
-#define HSPHY_POR_ASSERT		BIT(0)
-#define HSPHY_RETEN			BIT(1)
-
-#define HSPHY_SESS_VLD_CTRL		BIT(25)
-
-#define ULPI_PWR_CLK_MNG_REG		0x88
-#define ULPI_PWR_OTG_COMP_DISABLE	BIT(0)
-
-#define ULPI_MISC_A			0x96
-#define ULPI_MISC_A_VBUSVLDEXTSEL	BIT(1)
-#define ULPI_MISC_A_VBUSVLDEXT		BIT(0)
-
-#define HSPHY_3P3_MIN			3050000 /* uV */
-#define HSPHY_3P3_MAX			3300000 /* uV */
-
-#define HSPHY_1P8_MIN			1800000 /* uV */
-#define HSPHY_1P8_MAX			1800000 /* uV */
-
-#define HSPHY_VDD_MIN			5
-#define HSPHY_VDD_MAX			7
-
-struct phy_8x16 {
-	struct usb_phy			phy;
-	void __iomem			*regs;
-	struct clk			*core_clk;
-	struct clk			*iface_clk;
-	struct regulator_bulk_data	regulator[3];
-
-	struct reset_control		*phy_reset;
-
-	struct gpio_desc		*switch_gpio;
-	struct notifier_block		reboot_notify;
-};
-
-static int phy_8x16_notify_connect(struct usb_phy *phy,
-				   enum usb_device_speed speed)
-{
-	struct phy_8x16 *qphy = container_of(phy, struct phy_8x16, phy);
-	u32 val;
-
-	val = ULPI_MISC_A_VBUSVLDEXTSEL | ULPI_MISC_A_VBUSVLDEXT;
-	usb_phy_io_write(&qphy->phy, val, ULPI_SET(ULPI_MISC_A));
-
-	val = readl(qphy->regs + HSPHY_USBCMD);
-	val |= HSPHY_SESS_VLD_CTRL;
-	writel(val, qphy->regs + HSPHY_USBCMD);
-
-	return 0;
-}
-
-static int phy_8x16_notify_disconnect(struct usb_phy *phy,
-				      enum usb_device_speed speed)
-{
-	struct phy_8x16 *qphy = container_of(phy, struct phy_8x16, phy);
-	u32 val;
-
-	val = ULPI_MISC_A_VBUSVLDEXT | ULPI_MISC_A_VBUSVLDEXTSEL;
-	usb_phy_io_write(&qphy->phy, val, ULPI_CLR(ULPI_MISC_A));
-
-	val = readl(qphy->regs + HSPHY_USBCMD);
-	val &= ~HSPHY_SESS_VLD_CTRL;
-	writel(val, qphy->regs + HSPHY_USBCMD);
-
-	return 0;
-}
-
-static int phy_8x16_vbus_on(struct phy_8x16 *qphy)
-{
-	phy_8x16_notify_connect(&qphy->phy, USB_SPEED_UNKNOWN);
-
-	/* Switch D+/D- lines to Device connector */
-	gpiod_set_value_cansleep(qphy->switch_gpio, 0);
-
-	return 0;
-}
-
-static int phy_8x16_vbus_off(struct phy_8x16 *qphy)
-{
-	phy_8x16_notify_disconnect(&qphy->phy, USB_SPEED_UNKNOWN);
-
-	/* Switch D+/D- lines to USB HUB */
-	gpiod_set_value_cansleep(qphy->switch_gpio, 1);
-
-	return 0;
-}
-
-static int phy_8x16_vbus_notify(struct notifier_block *nb, unsigned long event,
-				void *ptr)
-{
-	struct usb_phy *usb_phy = container_of(nb, struct usb_phy, vbus_nb);
-	struct phy_8x16 *qphy = container_of(usb_phy, struct phy_8x16, phy);
-
-	if (event)
-		phy_8x16_vbus_on(qphy);
-	else
-		phy_8x16_vbus_off(qphy);
-
-	return NOTIFY_DONE;
-}
-
-static int phy_8x16_init(struct usb_phy *phy)
-{
-	struct phy_8x16 *qphy = container_of(phy, struct phy_8x16, phy);
-	u32 val, init[] = {0x44, 0x6B, 0x24, 0x13};
-	u32 addr = ULPI_EXT_VENDOR_SPECIFIC;
-	int idx, state;
-
-	for (idx = 0; idx < ARRAY_SIZE(init); idx++)
-		usb_phy_io_write(phy, init[idx], addr + idx);
-
-	reset_control_reset(qphy->phy_reset);
-
-	/* Assert USB HSPHY_POR */
-	val = readl(qphy->regs + HSPHY_CTRL);
-	val |= HSPHY_POR_ASSERT;
-	writel(val, qphy->regs + HSPHY_CTRL);
-
-	/*
-	 * wait for minimum 10 microseconds as suggested in HPG.
-	 * Use a slightly larger value since the exact value didn't
-	 * work 100% of the time.
-	 */
-	usleep_range(12, 15);
-
-	/* Deassert USB HSPHY_POR */
-	val = readl(qphy->regs + HSPHY_CTRL);
-	val &= ~HSPHY_POR_ASSERT;
-	writel(val, qphy->regs + HSPHY_CTRL);
-
-	usleep_range(10, 15);
-
-	writel(0x00, qphy->regs + HSPHY_AHBBURST);
-	writel(0x08, qphy->regs + HSPHY_AHBMODE);
-
-	/* workaround for rx buffer collision issue */
-	val = readl(qphy->regs + HSPHY_GENCONFIG);
-	val &= ~HSPHY_TXFIFO_IDLE_FORCE_DIS;
-	writel(val, qphy->regs + HSPHY_GENCONFIG);
-
-	val = readl(qphy->regs + HSPHY_GENCONFIG_2);
-	val |= HSPHY_SESS_VLD_CTRL_EN;
-	writel(val, qphy->regs + HSPHY_GENCONFIG_2);
-
-	val = ULPI_PWR_OTG_COMP_DISABLE;
-	usb_phy_io_write(phy, val, ULPI_SET(ULPI_PWR_CLK_MNG_REG));
-
-	state = extcon_get_state(qphy->phy.edev, EXTCON_USB);
-	if (state)
-		phy_8x16_vbus_on(qphy);
-	else
-		phy_8x16_vbus_off(qphy);
-
-	val = usb_phy_io_read(&qphy->phy, ULPI_FUNC_CTRL);
-	val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-	val |= ULPI_FUNC_CTRL_OPMODE_NORMAL;
-	usb_phy_io_write(&qphy->phy, val, ULPI_FUNC_CTRL);
-
-	return 0;
-}
-
-static void phy_8x16_shutdown(struct usb_phy *phy)
-{
-	u32 val;
-
-	/* Put the controller in non-driving mode */
-	val = usb_phy_io_read(phy, ULPI_FUNC_CTRL);
-	val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
-	val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
-	usb_phy_io_write(phy, val, ULPI_FUNC_CTRL);
-}
-
-static int phy_8x16_read_devicetree(struct phy_8x16 *qphy)
-{
-	struct device *dev = qphy->phy.dev;
-	int ret;
-
-	qphy->core_clk = devm_clk_get(dev, "core");
-	if (IS_ERR(qphy->core_clk))
-		return PTR_ERR(qphy->core_clk);
-
-	qphy->iface_clk = devm_clk_get(dev, "iface");
-	if (IS_ERR(qphy->iface_clk))
-		return PTR_ERR(qphy->iface_clk);
-
-	qphy->regulator[0].supply = "v3p3";
-	qphy->regulator[1].supply = "v1p8";
-	qphy->regulator[2].supply = "vddcx";
-
-	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(qphy->regulator),
-				      qphy->regulator);
-	if (ret)
-		return ret;
-
-	qphy->phy_reset = devm_reset_control_get(dev, "phy");
-	if (IS_ERR(qphy->phy_reset))
-		return PTR_ERR(qphy->phy_reset);
-
-	qphy->switch_gpio = devm_gpiod_get_optional(dev, "switch",
-						   GPIOD_OUT_LOW);
-	return PTR_ERR_OR_ZERO(qphy->switch_gpio);
-}
-
-static int phy_8x16_reboot_notify(struct notifier_block *this,
-				  unsigned long code, void *unused)
-{
-	struct phy_8x16 *qphy;
-
-	qphy = container_of(this, struct phy_8x16, reboot_notify);
-
-	/*
-	 * Ensure that D+/D- lines are routed to uB connector, so
-	 * we could load bootloader/kernel at next reboot_notify
-	 */
-	gpiod_set_value_cansleep(qphy->switch_gpio, 0);
-	return NOTIFY_DONE;
-}
-
-static int phy_8x16_probe(struct platform_device *pdev)
-{
-	struct phy_8x16 *qphy;
-	struct resource *res;
-	struct usb_phy *phy;
-	int ret;
-
-	qphy = devm_kzalloc(&pdev->dev, sizeof(*qphy), GFP_KERNEL);
-	if (!qphy)
-		return -ENOMEM;
-
-	platform_set_drvdata(pdev, qphy);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	qphy->regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(qphy->regs))
-		return PTR_ERR(qphy->regs);
-
-	phy			= &qphy->phy;
-	phy->dev		= &pdev->dev;
-	phy->label		= dev_name(&pdev->dev);
-	phy->init		= phy_8x16_init;
-	phy->shutdown		= phy_8x16_shutdown;
-	phy->notify_connect	= phy_8x16_notify_connect;
-	phy->notify_disconnect	= phy_8x16_notify_disconnect;
-	phy->io_priv		= qphy->regs + HSPHY_ULPI_VIEWPORT;
-	phy->io_ops		= &ulpi_viewport_access_ops;
-	phy->type		= USB_PHY_TYPE_USB2;
-	phy->vbus_nb.notifier_call = phy_8x16_vbus_notify;
-	phy->id_nb.notifier_call = NULL;
-
-	ret = phy_8x16_read_devicetree(qphy);
-	if (ret < 0)
-		return ret;
-
-	ret = clk_set_rate(qphy->core_clk, INT_MAX);
-	if (ret < 0)
-		dev_dbg(phy->dev, "Can't boost core clock\n");
-
-	ret = clk_prepare_enable(qphy->core_clk);
-	if (ret < 0)
-		return ret;
-
-	ret = clk_prepare_enable(qphy->iface_clk);
-	if (ret < 0)
-		goto off_core;
-
-	ret = regulator_bulk_enable(ARRAY_SIZE(qphy->regulator),
-				    qphy->regulator);
-	if (WARN_ON(ret))
-		goto off_clks;
-
-	ret = usb_add_phy_dev(&qphy->phy);
-	if (ret)
-		goto off_power;
-
-	qphy->reboot_notify.notifier_call = phy_8x16_reboot_notify;
-	register_reboot_notifier(&qphy->reboot_notify);
-
-	return 0;
-
-off_power:
-	regulator_bulk_disable(ARRAY_SIZE(qphy->regulator), qphy->regulator);
-off_clks:
-	clk_disable_unprepare(qphy->iface_clk);
-off_core:
-	clk_disable_unprepare(qphy->core_clk);
-	return ret;
-}
-
-static int phy_8x16_remove(struct platform_device *pdev)
-{
-	struct phy_8x16 *qphy = platform_get_drvdata(pdev);
-
-	unregister_reboot_notifier(&qphy->reboot_notify);
-
-	/*
-	 * Ensure that D+/D- lines are routed to uB connector, so
-	 * we could load bootloader/kernel at next reboot_notify
-	 */
-	gpiod_set_value_cansleep(qphy->switch_gpio, 0);
-
-	usb_remove_phy(&qphy->phy);
-
-	clk_disable_unprepare(qphy->iface_clk);
-	clk_disable_unprepare(qphy->core_clk);
-	regulator_bulk_disable(ARRAY_SIZE(qphy->regulator), qphy->regulator);
-	return 0;
-}
-
-static const struct of_device_id phy_8x16_dt_match[] = {
-	{ .compatible = "qcom,usb-8x16-phy" },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, phy_8x16_dt_match);
-
-static struct platform_driver phy_8x16_driver = {
-	.probe	= phy_8x16_probe,
-	.remove = phy_8x16_remove,
-	.driver = {
-		.name = "phy-qcom-8x16-usb",
-		.of_match_table = phy_8x16_dt_match,
-	},
-};
-module_platform_driver(phy_8x16_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("Qualcomm APQ8016/MSM8916 chipsets USB transceiver driver");
diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c
index 8babd318c0ed..b3ce42edb373 100644
--- a/drivers/usb/phy/phy-tahvo.c
+++ b/drivers/usb/phy/phy-tahvo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tahvo USB transceiver driver
  *
@@ -9,21 +10,12 @@
  *
  * Original driver written by Juha Yrjölä, Tony Lindgren and Timo Teräs.
  * Modified for Retu/Tahvo MFD by Aaro Koskinen.
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License. See the file "COPYING" in the main directory of this
- * archive for more details.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
  */
 
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/usb.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/usb/otg.h>
@@ -368,7 +360,8 @@ static int tahvo_usb_probe(struct platform_device *pdev)
 	tu->extcon = devm_extcon_dev_allocate(&pdev->dev, tahvo_cable);
 	if (IS_ERR(tu->extcon)) {
 		dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
-		return -ENOMEM;
+		ret = PTR_ERR(tu->extcon);
+		goto err_disable_clk;
 	}
 
 	ret = devm_extcon_dev_register(&pdev->dev, tu->extcon);
diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index 5fe4a5704bde..f668bfb708d3 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2010 Google, Inc.
  * Copyright (C) 2013 NVIDIA Corporation
@@ -6,16 +7,6 @@
  *	Erik Gilling <konkers@google.com>
  *	Benoit Goby <benoit@android.com>
  *	Venu Byravarasu <vbyravarasu@nvidia.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/resource.h>
@@ -329,6 +320,14 @@ static void utmi_phy_clk_disable(struct tegra_usb_phy *phy)
 	unsigned long val;
 	void __iomem *base = phy->regs;
 
+	/*
+	 * The USB driver may have already initiated the phy clock
+	 * disable so wait to see if the clock turns off and if not
+	 * then proceed with gating the clock.
+	 */
+	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID, 0) == 0)
+		return;
+
 	if (phy->is_legacy_phy) {
 		val = readl(base + USB_SUSP_CTRL);
 		val |= USB_SUSP_SET;
@@ -351,6 +350,15 @@ static void utmi_phy_clk_enable(struct tegra_usb_phy *phy)
 	unsigned long val;
 	void __iomem *base = phy->regs;
 
+	/*
+	 * The USB driver may have already initiated the phy clock
+	 * enable so wait to see if the clock turns on and if not
+	 * then proceed with ungating the clock.
+	 */
+	if (utmi_wait_register(base + USB_SUSP_CTRL, USB_PHY_CLK_VALID,
+			       USB_PHY_CLK_VALID) == 0)
+		return;
+
 	if (phy->is_legacy_phy) {
 		val = readl(base + USB_SUSP_CTRL);
 		val |= USB_SUSP_CLR;
diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index b5dc077ed7d3..e78ed52339e6 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * twl6030_usb - TWL6030 USB transceiver, talking to OMAP OTG driver.
  *
  * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  *
  * Author: Hema HK <hemahk@ti.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/phy/phy-ulpi-viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c
index 18bb8264b5a0..7a14e0e3b635 100644
--- a/drivers/usb/phy/phy-ulpi-viewport.c
+++ b/drivers/usb/phy/phy-ulpi-viewport.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/export.h>
diff --git a/drivers/usb/phy/phy-ulpi.c b/drivers/usb/phy/phy-ulpi.c
index f48a7a21e3c2..a43c49369a60 100644
--- a/drivers/usb/phy/phy-ulpi.c
+++ b/drivers/usb/phy/phy-ulpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Generic ULPI USB transceiver support
  *
@@ -7,20 +8,6 @@
  *
  *   Sascha Hauer <s.hauer@pengutronix.de>
  *   Freescale Semiconductors
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index 89f4ac4cd93e..f97cb47577fc 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * phy.c -- USB phy handling
  *
  * Copyright (C) 2004-2013 Texas Instruments
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 #include <linux/kernel.h>
 #include <linux/export.h>
diff --git a/drivers/usb/renesas_usbhs/Makefile b/drivers/usb/renesas_usbhs/Makefile
index d787d05f6546..fac147a3ad23 100644
--- a/drivers/usb/renesas_usbhs/Makefile
+++ b/drivers/usb/renesas_usbhs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # for Renesas USB
 #
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index f0ce304c5aaf..56079bb6759a 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #include <linux/err.h>
 #include <linux/gpio.h>
@@ -486,6 +477,10 @@ static const struct of_device_id usbhs_of_match[] = {
 		.data = (void *)USBHS_TYPE_RCAR_GEN3,
 	},
 	{
+		.compatible = "renesas,usbhs-r8a77995",
+		.data = (void *)USBHS_TYPE_RCAR_GEN3_WITH_PLL,
+	},
+	{
 		.compatible = "renesas,rcar-gen2-usbhs",
 		.data = (void *)USBHS_TYPE_RCAR_GEN2,
 	},
@@ -501,7 +496,6 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
 {
 	struct renesas_usbhs_platform_info *info;
 	struct renesas_usbhs_driver_param *dparam;
-	const struct of_device_id *of_id = of_match_device(usbhs_of_match, dev);
 	u32 tmp;
 	int gpio;
 
@@ -510,7 +504,7 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
 		return NULL;
 
 	dparam = &info->driver_param;
-	dparam->type = of_id ? (uintptr_t)of_id->data : 0;
+	dparam->type = (uintptr_t)of_device_get_match_data(dev);
 	if (!of_property_read_u32(dev->of_node, "renesas,buswait", &tmp))
 		dparam->buswait_bwait = tmp;
 	gpio = of_get_named_gpio_flags(dev->of_node, "renesas,enable-gpio", 0,
@@ -519,15 +513,19 @@ static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev)
 		dparam->enable_gpio = gpio;
 
 	if (dparam->type == USBHS_TYPE_RCAR_GEN2 ||
-	    dparam->type == USBHS_TYPE_RCAR_GEN3)
+	    dparam->type == USBHS_TYPE_RCAR_GEN3 ||
+	    dparam->type == USBHS_TYPE_RCAR_GEN3_WITH_PLL) {
 		dparam->has_usb_dmac = 1;
+		dparam->pipe_configs = usbhsc_new_pipe;
+		dparam->pipe_size = ARRAY_SIZE(usbhsc_new_pipe);
+	}
 
 	return info;
 }
 
 static int usbhs_probe(struct platform_device *pdev)
 {
-	struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev);
+	struct renesas_usbhs_platform_info *info = renesas_usbhs_get_info(pdev);
 	struct renesas_usbhs_driver_callback *dfunc;
 	struct usbhs_priv *priv;
 	struct resource *res, *irq_res;
@@ -577,17 +575,12 @@ static int usbhs_probe(struct platform_device *pdev)
 	switch (priv->dparam.type) {
 	case USBHS_TYPE_RCAR_GEN2:
 		priv->pfunc = usbhs_rcar2_ops;
-		if (!priv->dparam.pipe_configs) {
-			priv->dparam.pipe_configs = usbhsc_new_pipe;
-			priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_new_pipe);
-		}
 		break;
 	case USBHS_TYPE_RCAR_GEN3:
 		priv->pfunc = usbhs_rcar3_ops;
-		if (!priv->dparam.pipe_configs) {
-			priv->dparam.pipe_configs = usbhsc_new_pipe;
-			priv->dparam.pipe_size = ARRAY_SIZE(usbhsc_new_pipe);
-		}
+		break;
+	case USBHS_TYPE_RCAR_GEN3_WITH_PLL:
+		priv->pfunc = usbhs_rcar3_with_pll_ops;
 		break;
 	default:
 		if (!info->platform_callback.get_id) {
@@ -710,7 +703,7 @@ probe_end_pipe_exit:
 static int usbhs_remove(struct platform_device *pdev)
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
-	struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev);
+	struct renesas_usbhs_platform_info *info = renesas_usbhs_get_info(pdev);
 	struct renesas_usbhs_driver_callback *dfunc = &info->driver_callback;
 
 	dev_dbg(&pdev->dev, "usb remove\n");
diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index 8c5fc12ad778..64797784a6df 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #ifndef RENESAS_USB_DRIVER_H
 #define RENESAS_USB_DRIVER_H
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index d1af831f43eb..2d24ef3076ef 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #include <linux/delay.h>
 #include <linux/io.h>
@@ -282,11 +273,26 @@ static void usbhsf_fifo_clear(struct usbhs_pipe *pipe,
 			      struct usbhs_fifo *fifo)
 {
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
+	int ret = 0;
 
-	if (!usbhs_pipe_is_dcp(pipe))
-		usbhsf_fifo_barrier(priv, fifo);
+	if (!usbhs_pipe_is_dcp(pipe)) {
+		/*
+		 * This driver checks the pipe condition first to avoid -EBUSY
+		 * from usbhsf_fifo_barrier() with about 10 msec delay in
+		 * the interrupt handler if the pipe is RX direction and empty.
+		 */
+		if (usbhs_pipe_is_dir_in(pipe))
+			ret = usbhs_pipe_is_accessible(pipe);
+		if (!ret)
+			ret = usbhsf_fifo_barrier(priv, fifo);
+	}
 
-	usbhs_write(priv, fifo->ctr, BCLR);
+	/*
+	 * if non-DCP pipe, this driver should set BCLR when
+	 * usbhsf_fifo_barrier() returns 0.
+	 */
+	if (!ret)
+		usbhs_write(priv, fifo->ctr, BCLR);
 }
 
 static int usbhsf_fifo_rcv_len(struct usbhs_priv *priv,
@@ -842,9 +848,9 @@ static void xfer_work(struct work_struct *work)
 		fifo->name, usbhs_pipe_number(pipe), pkt->length, pkt->zero);
 
 	usbhs_pipe_running(pipe, 1);
-	usbhsf_dma_start(pipe, fifo);
 	usbhs_pipe_set_trans_count_if_bulk(pipe, pkt->trans);
 	dma_async_issue_pending(chan);
+	usbhsf_dma_start(pipe, fifo);
 	usbhs_pipe_enable(pipe);
 
 xfer_work_end:
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h
index 8b98507d7abc..88d1816bcda2 100644
--- a/drivers/usb/renesas_usbhs/fifo.h
+++ b/drivers/usb/renesas_usbhs/fifo.h
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #ifndef RENESAS_USB_FIFO_H
 #define RENESAS_USB_FIFO_H
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index 28965ef4f824..7475c4f64724 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #include <linux/interrupt.h>
 
diff --git a/drivers/usb/renesas_usbhs/mod.h b/drivers/usb/renesas_usbhs/mod.h
index 1ef5bf604070..a4a61d6b82a1 100644
--- a/drivers/usb/renesas_usbhs/mod.h
+++ b/drivers/usb/renesas_usbhs/mod.h
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #ifndef RENESAS_USB_MOD_H
 #define RENESAS_USB_MOD_H
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index c068b673420b..34ee9ebe12a3 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index e256351cb72d..4e59c649db81 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #include <linux/io.h>
 #include <linux/list.h>
diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index d811f0550c04..093cd8e87335 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #include <linux/delay.h>
 #include <linux/slab.h>
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index 95185fdb29b1..d3d002244891 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver
  *
  * Copyright (C) 2011 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
  */
 #ifndef RENESAS_USB_PIPE_H
 #define RENESAS_USB_PIPE_H
diff --git a/drivers/usb/renesas_usbhs/rcar2.c b/drivers/usb/renesas_usbhs/rcar2.c
index 277160bc6f25..85a0e0933917 100644
--- a/drivers/usb/renesas_usbhs/rcar2.c
+++ b/drivers/usb/renesas_usbhs/rcar2.c
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB driver R-Car Gen. 2 initialization and power control
  *
  * Copyright (C) 2014 Ulrich Hecht
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/gpio.h>
diff --git a/drivers/usb/renesas_usbhs/rcar2.h b/drivers/usb/renesas_usbhs/rcar2.h
index f07f10d9b3b2..45e3526cedeb 100644
--- a/drivers/usb/renesas_usbhs/rcar2.h
+++ b/drivers/usb/renesas_usbhs/rcar2.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "common.h"
 
 extern const struct renesas_usbhs_platform_callback
diff --git a/drivers/usb/renesas_usbhs/rcar3.c b/drivers/usb/renesas_usbhs/rcar3.c
index 02b67abfc2a1..c929d296c77b 100644
--- a/drivers/usb/renesas_usbhs/rcar3.c
+++ b/drivers/usb/renesas_usbhs/rcar3.c
@@ -1,12 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas USB driver R-Car Gen. 3 initialization and power control
  *
  * Copyright (C) 2016 Renesas Electronics Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
  */
 
 #include <linux/delay.h>
@@ -15,24 +11,39 @@
 #include "rcar3.h"
 
 #define LPSTS		0x102
+#define UGCTRL		0x180	/* 32-bit register */
 #define UGCTRL2		0x184	/* 32-bit register */
+#define UGSTS		0x188	/* 32-bit register */
 
 /* Low Power Status register (LPSTS) */
 #define LPSTS_SUSPM	0x4000
 
+/* R-Car D3 only: USB General control register (UGCTRL) */
+#define UGCTRL_PLLRESET		0x00000001
+#define UGCTRL_CONNECT		0x00000004
+
 /*
  * USB General control register 2 (UGCTRL2)
  * Remarks: bit[31:11] and bit[9:6] should be 0
  */
 #define UGCTRL2_RESERVED_3	0x00000001	/* bit[3:0] should be B'0001 */
+#define UGCTRL2_USB0SEL_HSUSB	0x00000020
 #define UGCTRL2_USB0SEL_OTG	0x00000030
 #define UGCTRL2_VBUSSEL		0x00000400
 
+/* R-Car D3 only: USB General status register (UGSTS) */
+#define UGSTS_LOCK		0x00000100
+
 static void usbhs_write32(struct usbhs_priv *priv, u32 reg, u32 data)
 {
 	iowrite32(data, priv->base + reg);
 }
 
+static u32 usbhs_read32(struct usbhs_priv *priv, u32 reg)
+{
+	return ioread32(priv->base + reg);
+}
+
 static int usbhs_rcar3_power_ctrl(struct platform_device *pdev,
 				void __iomem *base, int enable)
 {
@@ -52,6 +63,34 @@ static int usbhs_rcar3_power_ctrl(struct platform_device *pdev,
 	return 0;
 }
 
+/* R-Car D3 needs to release UGCTRL.PLLRESET */
+static int usbhs_rcar3_power_and_pll_ctrl(struct platform_device *pdev,
+					  void __iomem *base, int enable)
+{
+	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
+	u32 val;
+	int timeout = 1000;
+
+	if (enable) {
+		usbhs_write32(priv, UGCTRL, 0);	/* release PLLRESET */
+		usbhs_write32(priv, UGCTRL2, UGCTRL2_RESERVED_3 |
+			      UGCTRL2_USB0SEL_HSUSB);
+
+		usbhs_bset(priv, LPSTS, LPSTS_SUSPM, LPSTS_SUSPM);
+		do {
+			val = usbhs_read32(priv, UGSTS);
+			udelay(1);
+		} while (!(val & UGSTS_LOCK) && timeout--);
+		usbhs_write32(priv, UGCTRL, UGCTRL_CONNECT);
+	} else {
+		usbhs_write32(priv, UGCTRL, 0);
+		usbhs_bset(priv, LPSTS, LPSTS_SUSPM, 0);
+		usbhs_write32(priv, UGCTRL, UGCTRL_PLLRESET);
+	}
+
+	return 0;
+}
+
 static int usbhs_rcar3_get_id(struct platform_device *pdev)
 {
 	return USBHS_GADGET;
@@ -61,3 +100,8 @@ const struct renesas_usbhs_platform_callback usbhs_rcar3_ops = {
 	.power_ctrl = usbhs_rcar3_power_ctrl,
 	.get_id = usbhs_rcar3_get_id,
 };
+
+const struct renesas_usbhs_platform_callback usbhs_rcar3_with_pll_ops = {
+	.power_ctrl = usbhs_rcar3_power_and_pll_ctrl,
+	.get_id = usbhs_rcar3_get_id,
+};
diff --git a/drivers/usb/renesas_usbhs/rcar3.h b/drivers/usb/renesas_usbhs/rcar3.h
index 5f850b23ff18..49e535a31771 100644
--- a/drivers/usb/renesas_usbhs/rcar3.h
+++ b/drivers/usb/renesas_usbhs/rcar3.h
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "common.h"
 
 extern const struct renesas_usbhs_platform_callback usbhs_rcar3_ops;
+extern const struct renesas_usbhs_platform_callback usbhs_rcar3_with_pll_ops;
diff --git a/drivers/usb/serial/Makefile b/drivers/usb/serial/Makefile
index 5a21a82390e1..2d491e434f11 100644
--- a/drivers/usb/serial/Makefile
+++ b/drivers/usb/serial/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the USB serial device drivers.
 #
diff --git a/drivers/usb/serial/Makefile-keyspan_pda_fw b/drivers/usb/serial/Makefile-keyspan_pda_fw
index c20baf728011..503b472d85f2 100644
--- a/drivers/usb/serial/Makefile-keyspan_pda_fw
+++ b/drivers/usb/serial/Makefile-keyspan_pda_fw
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 # some rules to handle the quirks of the 'as31' assembler, like
 # insisting upon fixed suffixes for the input and output files,
diff --git a/drivers/usb/serial/aircable.c b/drivers/usb/serial/aircable.c
index 569c2200ba42..84d52953dd0a 100644
--- a/drivers/usb/serial/aircable.c
+++ b/drivers/usb/serial/aircable.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * AIRcable USB Bluetooth Dongle Driver.
  *
  * Copyright (C) 2010 Johan Hovold <jhovold@gmail.com>
  * Copyright (C) 2006 Manuel Francisco Naranjo (naranjo.manuel@gmail.com)
  *
- * This program is free software; you can redistribute it and/or modify it under
- * the terms of the GNU General Public License version 2 as published by the
- * Free Software Foundation.
- *
  * The device works as an standard CDC device, it has 2 interfaces, the first
  * one is for firmware access and the second is the serial one.
  * The protocol is very simply, there are two possibilities reading or writing.
@@ -161,4 +158,4 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 0adbd38b4eea..3c544782f60b 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2009 by Bart Hartgers (bart.hartgers+ark3116@gmail.com)
  * Original version:
@@ -15,11 +16,6 @@
  * into the old ark3116.c driver and suddenly realized the ark3116 is
  * a 16450 with a USB interface glued to it. See comments at the
  * bottom of this file.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index 15bc71853db5..c1235d5b9fba 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Belkin USB Serial Adapter Driver
  *
@@ -9,11 +10,6 @@
  *  and associated source files.  Please see the usb/serial files for
  *  individual credits and copyrights.
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
diff --git a/drivers/usb/serial/belkin_sa.h b/drivers/usb/serial/belkin_sa.h
index c74b58ab56f9..51bc06287603 100644
--- a/drivers/usb/serial/belkin_sa.h
+++ b/drivers/usb/serial/belkin_sa.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Definitions for Belkin USB Serial Adapter Driver
  *
@@ -8,11 +9,6 @@
  *  and associated source files.  Please see the usb/serial files for
  *  individual credits and copyrights.
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
diff --git a/drivers/usb/serial/bus.c b/drivers/usb/serial/bus.c
index 8936a83c96cd..9e265eb92611 100644
--- a/drivers/usb/serial/bus.c
+++ b/drivers/usb/serial/bus.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter Bus specific functions
  *
  * Copyright (C) 2002 Greg Kroah-Hartman (greg@kroah.com)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 351745aec0e1..bdd7a5ad3bf1 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2007, Frank A Kingswood <frank@kingswood-consulting.co.uk>
  * Copyright 2007, Werner Cornelius <werner@cornelius-consult.de>
@@ -9,10 +10,6 @@
  * serial port, an IEEE-1284 parallel printer port or a memory-like
  * interface. In all cases the CH341 supports an I2C interface as well.
  * This driver only supports the asynchronous serial interface.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -644,4 +641,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 
 module_usb_serial_driver(serial_drivers, id_table);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/console.c b/drivers/usb/serial/console.c
index fdf89800ebc3..17940589c647 100644
--- a/drivers/usb/serial/console.c
+++ b/drivers/usb/serial/console.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Console driver
  *
  * Copyright (C) 2001 - 2002 Greg Kroah-Hartman (greg@kroah.com)
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  * Thanks to Randy Dunlap for the original version of this code.
  *
  */
@@ -186,6 +183,7 @@ static int usb_console_setup(struct console *co, char *options)
 	tty_kref_put(tty);
  reset_open_count:
 	port->port.count = 0;
+	info->port = NULL;
 	usb_autopm_put_interface(serial->interface);
  error_get_interface:
 	usb_serial_put(serial);
@@ -265,7 +263,7 @@ static struct console usbcons = {
 
 void usb_serial_console_disconnect(struct usb_serial *serial)
 {
-	if (serial->port[0] == usbcons_info.port) {
+	if (serial->port[0] && serial->port[0] == usbcons_info.port) {
 		usb_serial_console_exit();
 		usb_serial_put(serial);
 	}
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index 2d945c9f975c..7c6273bf5beb 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Silicon Laboratories CP210x USB to RS232 serial adaptor driver
  *
  * Copyright (C) 2005 Craig Shelley (craig@microtron.org.uk)
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  * Support to set flow control line levels using TIOCMGET and TIOCMSET
  * thanks to Karl Hiramoto karl@hiramoto.org. RTSCTS hardware flow
  * control thanks to Munir Nassar nassarmu@real-time.com
@@ -177,6 +174,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */
 	{ USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */
 	{ USB_DEVICE(0x18EF, 0xE025) }, /* ELV Marble Sound Board 1 */
+	{ USB_DEVICE(0x18EF, 0xE032) }, /* ELV TFD500 Data Logger */
 	{ USB_DEVICE(0x1901, 0x0190) }, /* GE B850 CP2105 Recorder interface */
 	{ USB_DEVICE(0x1901, 0x0193) }, /* GE B650 CP2104 PMC interface */
 	{ USB_DEVICE(0x1901, 0x0194) },	/* GE Healthcare Remote Alarm Box */
@@ -352,6 +350,7 @@ static struct usb_serial_driver * const serial_drivers[] = {
 #define CP210X_PARTNUM_CP2104	0x04
 #define CP210X_PARTNUM_CP2105	0x05
 #define CP210X_PARTNUM_CP2108	0x08
+#define CP210X_PARTNUM_UNKNOWN	0xFF
 
 /* CP210X_GET_COMM_STATUS returns these 0x13 bytes */
 struct cp210x_comm_status {
@@ -1491,8 +1490,11 @@ static int cp210x_attach(struct usb_serial *serial)
 	result = cp210x_read_vendor_block(serial, REQTYPE_DEVICE_TO_HOST,
 					  CP210X_GET_PARTNUM, &priv->partnum,
 					  sizeof(priv->partnum));
-	if (result < 0)
-		goto err_free_priv;
+	if (result < 0) {
+		dev_warn(&serial->interface->dev,
+			 "querying part number failed\n");
+		priv->partnum = CP210X_PARTNUM_UNKNOWN;
+	}
 
 	usb_set_serial_data(serial, priv);
 
@@ -1505,10 +1507,6 @@ static int cp210x_attach(struct usb_serial *serial)
 	}
 
 	return 0;
-err_free_priv:
-	kfree(priv);
-
-	return result;
 }
 
 static void cp210x_disconnect(struct usb_serial *serial)
@@ -1528,4 +1526,4 @@ static void cp210x_release(struct usb_serial *serial)
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 47fbd9f0c0c7..dc67a2eb98d7 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  REINER SCT cyberJack pinpad/e-com USB Chipcard Reader Driver
  *
@@ -10,11 +11,6 @@
  *  and associated source files.  Please see the usb/serial files for
  *  individual credits and copyrights.
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
  *  Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
  *  patience.
  *
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 90110de715e0..e0035c023120 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Cypress M8 driver
  *
@@ -6,11 +7,6 @@
  *	Copyright (C) 2003,2004
  *	    Neil Whelchel (koyama@firstlight.net)
  *
- * 	This program is free software; you can redistribute it and/or modify
- * 	it under the terms of the GNU General Public License as published by
- * 	the Free Software Foundation; either version 2 of the License, or
- * 	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index 119d2e17077b..35e223751c0e 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CYPRESS_M8_H
 #define CYPRESS_M8_H
 
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index 2ce39af32cfa..b0526786fb02 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
 *  Digi AccelePort USB-4 and USB-2 Serial Converters
 *
 *  Copyright 2000 by Digi International
 *
-*  This program is free software; you can redistribute it and/or modify
-*  it under the terms of the GNU General Public License as published by
-*  the Free Software Foundation; either version 2 of the License, or
-*  (at your option) any later version.
-*
 *  Shamelessly based on Brian Warner's keyspan_pda.c and Greg Kroah-Hartman's
 *  usb-serial driver.
 *
diff --git a/drivers/usb/serial/empeg.c b/drivers/usb/serial/empeg.c
index 90e603d5f660..d680bec62547 100644
--- a/drivers/usb/serial/empeg.c
+++ b/drivers/usb/serial/empeg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Empeg empeg-car player driver
  *
@@ -7,10 +8,6 @@
  *	Copyright (C) 1999 - 2001
  *	    Greg Kroah-Hartman (greg@kroah.com)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License, as published by
- *	the Free Software Foundation, version 2.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  */
@@ -126,4 +123,4 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/ezusb_convert.pl b/drivers/usb/serial/ezusb_convert.pl
index 13f11469116e..40d23f21ec74 100644
--- a/drivers/usb/serial/ezusb_convert.pl
+++ b/drivers/usb/serial/ezusb_convert.pl
@@ -1,4 +1,5 @@
 #! /usr/bin/perl -w
+# SPDX-License-Identifier: GPL-2.0
 
 
 # convert an Intel HEX file into a set of C records usable by the firmware
diff --git a/drivers/usb/serial/f81232.c b/drivers/usb/serial/f81232.c
index 972f5a5fe577..96036f87b1de 100644
--- a/drivers/usb/serial/f81232.c
+++ b/drivers/usb/serial/f81232.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Fintek F81232 USB to serial adaptor driver
  *
  * Copyright (C) 2012 Greg Kroah-Hartman (gregkh@linuxfoundation.org)
  * Copyright (C) 2012 Linux Foundation
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/f81534.c b/drivers/usb/serial/f81534.c
index 3d616a2a9f96..e4573b4c8935 100644
--- a/drivers/usb/serial/f81534.c
+++ b/drivers/usb/serial/f81534.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * F81532/F81534 USB to Serial Ports Bridge
  *
  * F81532 => 2 Serial Ports
  * F81534 => 4 Serial Ports
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * Copyright (C) 2016 Feature Integration Technology Inc., (Fintek)
  * Copyright (C) 2016 Tom Tsai (Tom_Tsai@fintek.com.tw)
  * Copyright (C) 2016 Peter Hong (Peter_Hong@fintek.com.tw)
@@ -39,9 +35,11 @@
 #define F81534_UART_OFFSET		0x10
 #define F81534_DIVISOR_LSB_REG		(0x00 + F81534_UART_BASE_ADDRESS)
 #define F81534_DIVISOR_MSB_REG		(0x01 + F81534_UART_BASE_ADDRESS)
+#define F81534_INTERRUPT_ENABLE_REG	(0x01 + F81534_UART_BASE_ADDRESS)
 #define F81534_FIFO_CONTROL_REG		(0x02 + F81534_UART_BASE_ADDRESS)
 #define F81534_LINE_CONTROL_REG		(0x03 + F81534_UART_BASE_ADDRESS)
 #define F81534_MODEM_CONTROL_REG	(0x04 + F81534_UART_BASE_ADDRESS)
+#define F81534_LINE_STATUS_REG		(0x05 + F81534_UART_BASE_ADDRESS)
 #define F81534_MODEM_STATUS_REG		(0x06 + F81534_UART_BASE_ADDRESS)
 #define F81534_CONFIG1_REG		(0x09 + F81534_UART_BASE_ADDRESS)
 
@@ -126,9 +124,13 @@ struct f81534_serial_private {
 
 struct f81534_port_private {
 	struct mutex mcr_mutex;
+	struct mutex lcr_mutex;
+	struct work_struct lsr_work;
+	struct usb_serial_port *port;
 	unsigned long tx_empty;
 	spinlock_t msr_lock;
 	u8 shadow_mcr;
+	u8 shadow_lcr;
 	u8 shadow_msr;
 	u8 phy_num;
 };
@@ -461,6 +463,7 @@ static u32 f81534_calc_baud_divisor(u32 baudrate, u32 clockrate)
 static int f81534_set_port_config(struct usb_serial_port *port, u32 baudrate,
 					u8 lcr)
 {
+	struct f81534_port_private *port_priv = usb_get_serial_port_data(port);
 	u32 divisor;
 	int status;
 	u8 value;
@@ -489,35 +492,65 @@ static int f81534_set_port_config(struct usb_serial_port *port, u32 baudrate,
 	}
 
 	divisor = f81534_calc_baud_divisor(baudrate, F81534_MAX_BAUDRATE);
+
+	mutex_lock(&port_priv->lcr_mutex);
+
 	value = UART_LCR_DLAB;
 	status = f81534_set_port_register(port, F81534_LINE_CONTROL_REG,
 						value);
 	if (status) {
 		dev_err(&port->dev, "%s: set LCR failed\n", __func__);
-		return status;
+		goto out_unlock;
 	}
 
 	value = divisor & 0xff;
 	status = f81534_set_port_register(port, F81534_DIVISOR_LSB_REG, value);
 	if (status) {
 		dev_err(&port->dev, "%s: set DLAB LSB failed\n", __func__);
-		return status;
+		goto out_unlock;
 	}
 
 	value = (divisor >> 8) & 0xff;
 	status = f81534_set_port_register(port, F81534_DIVISOR_MSB_REG, value);
 	if (status) {
 		dev_err(&port->dev, "%s: set DLAB MSB failed\n", __func__);
-		return status;
+		goto out_unlock;
 	}
 
-	status = f81534_set_port_register(port, F81534_LINE_CONTROL_REG, lcr);
+	value = lcr | (port_priv->shadow_lcr & UART_LCR_SBC);
+	status = f81534_set_port_register(port, F81534_LINE_CONTROL_REG,
+						value);
 	if (status) {
 		dev_err(&port->dev, "%s: set LCR failed\n", __func__);
-		return status;
+		goto out_unlock;
 	}
 
-	return 0;
+	port_priv->shadow_lcr = value;
+out_unlock:
+	mutex_unlock(&port_priv->lcr_mutex);
+
+	return status;
+}
+
+static void f81534_break_ctl(struct tty_struct *tty, int break_state)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct f81534_port_private *port_priv = usb_get_serial_port_data(port);
+	int status;
+
+	mutex_lock(&port_priv->lcr_mutex);
+
+	if (break_state)
+		port_priv->shadow_lcr |= UART_LCR_SBC;
+	else
+		port_priv->shadow_lcr &= ~UART_LCR_SBC;
+
+	status = f81534_set_port_register(port, F81534_LINE_CONTROL_REG,
+					port_priv->shadow_lcr);
+	if (status)
+		dev_err(&port->dev, "set break failed: %d\n", status);
+
+	mutex_unlock(&port_priv->lcr_mutex);
 }
 
 static int f81534_update_mctrl(struct usb_serial_port *port, unsigned int set,
@@ -1015,6 +1048,8 @@ static void f81534_process_per_serial_block(struct usb_serial_port *port,
 				tty_insert_flip_char(&port->port, 0,
 						TTY_OVERRUN);
 			}
+
+			schedule_work(&port_priv->lsr_work);
 		}
 
 		if (port->port.console && port->sysrq) {
@@ -1162,6 +1197,21 @@ static int f81534_attach(struct usb_serial *serial)
 	return 0;
 }
 
+static void f81534_lsr_worker(struct work_struct *work)
+{
+	struct f81534_port_private *port_priv;
+	struct usb_serial_port *port;
+	int status;
+	u8 tmp;
+
+	port_priv = container_of(work, struct f81534_port_private, lsr_work);
+	port = port_priv->port;
+
+	status = f81534_get_port_register(port, F81534_LINE_STATUS_REG, &tmp);
+	if (status)
+		dev_warn(&port->dev, "read LSR failed: %d\n", status);
+}
+
 static int f81534_port_probe(struct usb_serial_port *port)
 {
 	struct f81534_port_private *port_priv;
@@ -1173,6 +1223,8 @@ static int f81534_port_probe(struct usb_serial_port *port)
 
 	spin_lock_init(&port_priv->msr_lock);
 	mutex_init(&port_priv->mcr_mutex);
+	mutex_init(&port_priv->lcr_mutex);
+	INIT_WORK(&port_priv->lsr_work, f81534_lsr_worker);
 
 	/* Assign logic-to-phy mapping */
 	ret = f81534_logic_to_phy_port(port->serial, port);
@@ -1180,10 +1232,30 @@ static int f81534_port_probe(struct usb_serial_port *port)
 		return ret;
 
 	port_priv->phy_num = ret;
+	port_priv->port = port;
 	usb_set_serial_port_data(port, port_priv);
 	dev_dbg(&port->dev, "%s: port_number: %d, phy_num: %d\n", __func__,
 			port->port_number, port_priv->phy_num);
 
+	/*
+	 * The F81532/534 will hang-up when enable LSR interrupt in IER and
+	 * occur data overrun. So we'll disable the LSR interrupt in probe()
+	 * and submit the LSR worker to clear LSR state when reported LSR error
+	 * bit with bulk-in data in f81534_process_per_serial_block().
+	 */
+	ret = f81534_set_port_register(port, F81534_INTERRUPT_ENABLE_REG,
+			UART_IER_RDI | UART_IER_THRI | UART_IER_MSI);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int f81534_port_remove(struct usb_serial_port *port)
+{
+	struct f81534_port_private *port_priv = usb_get_serial_port_data(port);
+
+	flush_work(&port_priv->lsr_work);
 	return 0;
 }
 
@@ -1317,6 +1389,8 @@ static struct usb_serial_driver f81534_device = {
 	.calc_num_ports =	f81534_calc_num_ports,
 	.attach =		f81534_attach,
 	.port_probe =		f81534_port_probe,
+	.port_remove =		f81534_port_remove,
+	.break_ctl =		f81534_break_ctl,
 	.dtr_rts =		f81534_dtr_rts,
 	.process_read_urb =	f81534_process_read_urb,
 	.ioctl =		f81534_ioctl,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 1cec03799cdf..1aba9105b369 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB FTDI SIO driver
  *
@@ -9,11 +10,6 @@
  *	Copyright (C) 2002
  *	    Kuba Ober (kuba@mareimbrium.org)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
@@ -1015,6 +1011,8 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(WICED_VID, WICED_USB20706V2_PID) },
 	{ USB_DEVICE(TI_VID, TI_CC3200_LAUNCHPAD_PID),
 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+	{ USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_BT_USB_PID) },
+	{ USB_DEVICE(CYPRESS_VID, CYPRESS_WICED_WL_USB_PID) },
 	{ }					/* Terminating entry */
 };
 
diff --git a/drivers/usb/serial/ftdi_sio.h b/drivers/usb/serial/ftdi_sio.h
index bbcc13df11ac..dcd0b6e05baf 100644
--- a/drivers/usb/serial/ftdi_sio.h
+++ b/drivers/usb/serial/ftdi_sio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Driver definitions for the FTDI USB Single Port Serial Converter -
  * known as FTDI_SIO (Serial Input/Output application of the chipset)
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 4fcf1cecb6d7..4faa09fe308c 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * vendor/product IDs (VID/PID) of devices using FTDI USB serial converters.
  * Please keep numerically sorted within individual areas, thanks!
@@ -610,6 +611,13 @@
 #define ADI_GNICEPLUS_PID	0xF001
 
 /*
+ * Cypress WICED USB UART
+ */
+#define CYPRESS_VID			0x04B4
+#define CYPRESS_WICED_BT_USB_PID	0x009B
+#define CYPRESS_WICED_WL_USB_PID	0xF900
+
+/*
  * Microchip Technology, Inc.
  *
  * MICROCHIP_VID (0x04D8) and MICROCHIP_USB_BOARD_PID (0x000A) are
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index b2f2e87aed94..633550ec3025 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Garmin GPS driver
  *
@@ -7,20 +8,6 @@
  * http://sourceforge.net/projects/garmin-gps/
  *
  * This driver has been derived from v2.1 of the visor driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111 USA
  */
 
 #include <linux/kernel.h>
@@ -138,6 +125,7 @@ struct garmin_data {
 	__u8   privpkt[4*6];
 	spinlock_t lock;
 	struct list_head pktlist;
+	struct usb_anchor write_urbs;
 };
 
 
@@ -875,42 +863,38 @@ static int garmin_clear(struct garmin_data *garmin_data_p)
 
 static int garmin_init_session(struct usb_serial_port *port)
 {
-	struct usb_serial *serial = port->serial;
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
-	int status = 0;
-	int i = 0;
+	int status;
+	int i;
 
-	if (status == 0) {
-		usb_kill_urb(port->interrupt_in_urb);
+	usb_kill_urb(port->interrupt_in_urb);
 
-		dev_dbg(&serial->dev->dev, "%s - adding interrupt input\n", __func__);
-		status = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
-		if (status)
-			dev_err(&serial->dev->dev,
-			  "%s - failed submitting interrupt urb, error %d\n",
-							__func__, status);
+	status = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
+	if (status) {
+		dev_err(&port->dev, "failed to submit interrupt urb: %d\n",
+				status);
+		return status;
 	}
 
 	/*
 	 * using the initialization method from gpsbabel. See comments in
 	 * gpsbabel/jeeps/gpslibusb.c gusb_reset_toggles()
 	 */
-	if (status == 0) {
-		dev_dbg(&serial->dev->dev, "%s - starting session ...\n", __func__);
-		garmin_data_p->state = STATE_ACTIVE;
+	dev_dbg(&port->dev, "%s - starting session ...\n", __func__);
+	garmin_data_p->state = STATE_ACTIVE;
 
-		for (i = 0; i < 3; i++) {
-			status = garmin_write_bulk(port,
-					GARMIN_START_SESSION_REQ,
-					sizeof(GARMIN_START_SESSION_REQ), 0);
+	for (i = 0; i < 3; i++) {
+		status = garmin_write_bulk(port, GARMIN_START_SESSION_REQ,
+				sizeof(GARMIN_START_SESSION_REQ), 0);
+		if (status < 0)
+			goto err_kill_urbs;
+	}
 
-			if (status < 0)
-				break;
-		}
+	return 0;
 
-		if (status > 0)
-			status = 0;
-	}
+err_kill_urbs:
+	usb_kill_anchored_urbs(&garmin_data_p->write_urbs);
+	usb_kill_urb(port->interrupt_in_urb);
 
 	return status;
 }
@@ -930,7 +914,6 @@ static int garmin_open(struct tty_struct *tty, struct usb_serial_port *port)
 	spin_unlock_irqrestore(&garmin_data_p->lock, flags);
 
 	/* shutdown any bulk reads that might be going on */
-	usb_kill_urb(port->write_urb);
 	usb_kill_urb(port->read_urb);
 
 	if (garmin_data_p->state == STATE_RESET)
@@ -953,7 +936,7 @@ static void garmin_close(struct usb_serial_port *port)
 
 	/* shutdown our urbs */
 	usb_kill_urb(port->read_urb);
-	usb_kill_urb(port->write_urb);
+	usb_kill_anchored_urbs(&garmin_data_p->write_urbs);
 
 	/* keep reset state so we know that we must start a new session */
 	if (garmin_data_p->state != STATE_RESET)
@@ -1037,12 +1020,14 @@ static int garmin_write_bulk(struct usb_serial_port *port,
 	}
 
 	/* send it down the pipe */
+	usb_anchor_urb(urb, &garmin_data_p->write_urbs);
 	status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status) {
 		dev_err(&port->dev,
 		   "%s - usb_submit_urb(write bulk) failed with status = %d\n",
 				__func__, status);
 		count = status;
+		usb_unanchor_urb(urb);
 		kfree(buffer);
 	}
 
@@ -1370,9 +1355,9 @@ static void garmin_unthrottle(struct tty_struct *tty)
  * the tty in cases where the protocol provides no own handshaking
  * to initiate the transfer.
  */
-static void timeout_handler(unsigned long data)
+static void timeout_handler(struct timer_list *t)
 {
-	struct garmin_data *garmin_data_p = (struct garmin_data *) data;
+	struct garmin_data *garmin_data_p = from_timer(garmin_data_p, t, timer);
 
 	/* send the next queued packet to the tty port */
 	if (garmin_data_p->mode == MODE_NATIVE)
@@ -1391,19 +1376,23 @@ static int garmin_port_probe(struct usb_serial_port *port)
 	if (!garmin_data_p)
 		return -ENOMEM;
 
-	init_timer(&garmin_data_p->timer);
+	timer_setup(&garmin_data_p->timer, timeout_handler, 0);
 	spin_lock_init(&garmin_data_p->lock);
 	INIT_LIST_HEAD(&garmin_data_p->pktlist);
-	/* garmin_data_p->timer.expires = jiffies + session_timeout; */
-	garmin_data_p->timer.data = (unsigned long)garmin_data_p;
-	garmin_data_p->timer.function = timeout_handler;
 	garmin_data_p->port = port;
 	garmin_data_p->state = 0;
 	garmin_data_p->flags = 0;
 	garmin_data_p->count = 0;
+	init_usb_anchor(&garmin_data_p->write_urbs);
 	usb_set_serial_port_data(port, garmin_data_p);
 
 	status = garmin_init_session(port);
+	if (status)
+		goto err_free;
+
+	return 0;
+err_free:
+	kfree(garmin_data_p);
 
 	return status;
 }
@@ -1413,6 +1402,7 @@ static int garmin_port_remove(struct usb_serial_port *port)
 {
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 
+	usb_kill_anchored_urbs(&garmin_data_p->write_urbs);
 	usb_kill_urb(port->interrupt_in_urb);
 	del_timer_sync(&garmin_data_p->timer);
 	kfree(garmin_data_p);
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 35cb8c0e584f..2274d9625f63 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter Generic functions
  *
  * Copyright (C) 2010 - 2013 Johan Hovold (jhovold@gmail.com)
  * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/io_16654.h b/drivers/usb/serial/io_16654.h
index a53abc9530ff..4980f72dc56f 100644
--- a/drivers/usb/serial/io_16654.h
+++ b/drivers/usb/serial/io_16654.h
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	16654.H		Definitions for 16C654 UART used on EdgePorts
  *
  *	Copyright (C) 1998 Inside Out Networks, Inc.
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  *
  ************************************************************************/
 
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index bdf8bd814a9a..219265ce3711 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Edgeport USB Serial Converter driver
  *
  * Copyright (C) 2000 Inside Out Networks, All rights reserved.
  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * Supports the following devices:
  *	Edgeport/4
  *	Edgeport/4t
diff --git a/drivers/usb/serial/io_edgeport.h b/drivers/usb/serial/io_edgeport.h
index ad9c1d47a619..2e7fedbaf2ff 100644
--- a/drivers/usb/serial/io_edgeport.h
+++ b/drivers/usb/serial/io_edgeport.h
@@ -1,15 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	io_edgeport.h	Edgeport Linux Interface definitions
  *
  *	Copyright (C) 2000 Inside Out Networks, Inc.
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
- *
  ************************************************************************/
 
 #if !defined(_IO_EDGEPORT_H_)
diff --git a/drivers/usb/serial/io_ionsp.h b/drivers/usb/serial/io_ionsp.h
index 5cc591bae54d..4b8e4823bd45 100644
--- a/drivers/usb/serial/io_ionsp.h
+++ b/drivers/usb/serial/io_ionsp.h
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	IONSP.H		Definitions for I/O Networks Serial Protocol
  *
  *	Copyright (C) 1997-1998 Inside Out Networks, Inc.
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  *	These definitions are used by both kernel-mode driver and the
  *	peripheral firmware and MUST be kept in sync.
  *
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 6cefb9cb133d..0fbadb37c104 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Edgeport USB Serial Converter driver
  *
  * Copyright (C) 2000-2002 Inside Out Networks, All rights reserved.
  * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com>
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * Supports the following devices:
  *	EP/1 EP/2 EP/4 EP/21 EP/22 EP/221 EP/42 EP/421 WATCHPORT
  *
diff --git a/drivers/usb/serial/io_ti.h b/drivers/usb/serial/io_ti.h
index 1bd67b24f916..e53c68261017 100644
--- a/drivers/usb/serial/io_ti.h
+++ b/drivers/usb/serial/io_ti.h
@@ -1,13 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*****************************************************************************
  *
  *	Copyright (C) 1997-2002 Inside Out Networks, Inc.
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
- *
  *	Feb-16-2001	DMI	Added I2C structure definitions
  *	May-29-2002	gkh	Ported to Linux
  *
diff --git a/drivers/usb/serial/io_usbvend.h b/drivers/usb/serial/io_usbvend.h
index 6f6a856bc37c..c38e87ac5ea9 100644
--- a/drivers/usb/serial/io_usbvend.h
+++ b/drivers/usb/serial/io_usbvend.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /************************************************************************
  *
  *	USBVEND.H		Vendor-specific USB definitions
@@ -8,10 +9,6 @@
  ************************************************************************
  *
  *	Copyright (C) 1998 Inside Out Networks, Inc.
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  *
  ************************************************************************/
 
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index cde0dcdce9c4..f81746c3c26c 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Compaq iPAQ driver
  *
  *	Copyright (C) 2001 - 2002
  *	    Ganesh Varadarajan <ganesh@veritas.com>
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/ipw.c b/drivers/usb/serial/ipw.c
index 8b1cf18a668b..d04c7cc5c1c2 100644
--- a/drivers/usb/serial/ipw.c
+++ b/drivers/usb/serial/ipw.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * IPWireless 3G UMTS TDD Modem driver (USB connected)
  *
  *   Copyright (C) 2004 Roelf Diedericks <roelfd@inet.co.za>
  *   Copyright (C) 2004 Greg Kroah-Hartman <greg@kroah.com>
  *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * All information about the device was acquired using SnoopyPro
  * on MSFT's O/S, and examing the MSFT drivers' debug output
  * (insanely left _on_ in the enduser version)
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index f9734a96d516..24b06c7e5e2d 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB IR Dongle driver
  *
@@ -5,11 +6,6 @@
  *	Copyright (C) 2002	Gary Brubaker (xavyer@ix.netcom.com)
  *	Copyright (C) 2010	Johan Hovold (jhovold@gmail.com)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * This driver allows a USB IrDA device to be used as a "dumb" serial device.
  * This can be useful if you do not have access to a full IrDA stack on the
  * other side of the connection.  If you do have an IrDA stack on both devices,
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 18fc992a245f..397a8012ffa3 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Infinity Unlimited USB Phoenix driver
  *
@@ -7,13 +8,7 @@
  *
  * Original code taken from iuutool (Copyright (C) 2006 Juan Carlos Borrás)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  *  And tested with help of WB Electronics
- *
  */
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/usb/serial/iuu_phoenix.h b/drivers/usb/serial/iuu_phoenix.h
index b82630a3b8fd..b400b262f72e 100644
--- a/drivers/usb/serial/iuu_phoenix.h
+++ b/drivers/usb/serial/iuu_phoenix.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Infinity Unlimited USB Phoenix driver
  *
@@ -6,13 +7,7 @@
  *
  * Original code taken from iuutool ( Copyright (C) 2006 Juan Carlos Borrás )
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  *  And tested with help of WB Electronics
- *
  */
 
 #define   IUU_USB_VENDOR_ID  0x104f
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 5662d324edd2..d34779fe4a8d 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
   Keyspan USB to Serial Converter driver
 
   (C) Copyright (C) 2000-2001	Hugh Blemings <hugh@blemings.org>
   (C) Copyright (C) 2002	Greg Kroah-Hartman <greg@kroah.com>
 
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
   See http://blemings.org/hugh/keyspan.html for more information.
 
   Code in this driver inspired by and in a number of places taken
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index 196908dd25a1..5169624d8b11 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Keyspan PDA / Xircom / Entrega Converter driver
  *
@@ -5,11 +6,6 @@
  * Copyright (C) 1999, 2000 Brian Warner	<warner@lothar.com>
  * Copyright (C) 2000 Al Borchers		<borchers@steinerpoint.com>
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  */
diff --git a/drivers/usb/serial/kl5kusb105.c b/drivers/usb/serial/kl5kusb105.c
index 595415e59d5d..5046ffd53cde 100644
--- a/drivers/usb/serial/kl5kusb105.c
+++ b/drivers/usb/serial/kl5kusb105.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * KLSI KL5KUSB105 chip RS232 converter driver
  *
  *   Copyright (C) 2010 Johan Hovold <jhovold@gmail.com>
  *   Copyright (C) 2001 Utz-Uwe Haus <haus@uuhaus.de>
  *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * All information about the device was acquired using SniffUSB ans snoopUSB
  * on Windows98.
  * It was written out of frustration with the PalmConnect USB Serial adapter
diff --git a/drivers/usb/serial/kl5kusb105.h b/drivers/usb/serial/kl5kusb105.h
index 22a90badc86b..41c9bf60fbf0 100644
--- a/drivers/usb/serial/kl5kusb105.h
+++ b/drivers/usb/serial/kl5kusb105.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for the KLSI KL5KUSB105 serial port adapter
  */
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index 3024b9b25360..a31ea7e194dd 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *  KOBIL USB Smart Card Terminal Driver
  *
@@ -10,11 +11,6 @@
  *  and associated source files.  Please see the usb/serial files for
  *  individual credits and copyrights.
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
  *  Thanks to Greg Kroah-Hartman (greg@kroah.com) for his help and
  *  patience.
  *
@@ -491,6 +487,7 @@ static void kobil_set_termios(struct tty_struct *tty,
 		break;
 	default:
 		speed = 9600;
+		/* fall through */
 	case 9600:
 		urb_val = SUSBCR_SBR_9600;
 		break;
diff --git a/drivers/usb/serial/kobil_sct.h b/drivers/usb/serial/kobil_sct.h
index be207f7156fe..030c1b426611 100644
--- a/drivers/usb/serial/kobil_sct.h
+++ b/drivers/usb/serial/kobil_sct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define SUSBCRequest_SetBaudRateParityAndStopBits       1
 #define SUSBCR_SBR_MASK				0xFF00
 #define SUSBCR_SBR_1200				0x0100
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index 70f346f1aa86..7887c312d9a9 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * MCT (Magic Control Technology Corp.) USB RS232 Converter Driver
  *
  *   Copyright (C) 2000 Wolfgang Grandegger (wolfgang@ces.ch)
  *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * This program is largely derived from the Belkin USB Serial Adapter Driver
  * (see belkin_sa.[ch]). All of the information about the device was acquired
  * by using SniffUSB on Windows98. For technical details see mct_u232.h.
diff --git a/drivers/usb/serial/mct_u232.h b/drivers/usb/serial/mct_u232.h
index d325bb8cb583..0084edf518e8 100644
--- a/drivers/usb/serial/mct_u232.h
+++ b/drivers/usb/serial/mct_u232.h
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Definitions for MCT (Magic Control Technology) USB-RS232 Converter Driver
  *
  *   Copyright (C) 2000 Wolfgang Grandegger (wolfgang@ces.ch)
  *
- *   This program is free software; you can redistribute it and/or modify
- *   it under the terms of the GNU General Public License as published by
- *   the Free Software Foundation; either version 2 of the License, or
- *   (at your option) any later version.
- *
  * This driver is for the device MCT USB-RS232 Converter (25 pin, Model No.
  * U232-P25) from Magic Control Technology Corp. (there is also a 9 pin
  * Model No. U232-P9). See http://www.mct.com.tw/products/product_us232.html 
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index cc84da8dbb84..e63cea02cfd8 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   Some of this code is credited to Linux USB open source files that are
   distributed with Linux.
@@ -45,6 +46,7 @@ struct metrousb_private {
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) },
 	{ USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) },
+	{ USB_DEVICE_INTERFACE_CLASS(0x0c2e, 0x0730, 0xff) },	/* MS7820 */
 	{ }, /* Terminating entry. */
 };
 MODULE_DEVICE_TABLE(usb, id_table);
@@ -53,21 +55,33 @@ MODULE_DEVICE_TABLE(usb, id_table);
 #define UNI_CMD_OPEN	0x80
 #define UNI_CMD_CLOSE	0xFF
 
-static inline int metrousb_is_unidirectional_mode(struct usb_serial_port *port)
+static int metrousb_is_unidirectional_mode(struct usb_serial *serial)
 {
-	__u16 product_id = le16_to_cpu(
-		port->serial->dev->descriptor.idProduct);
+	u16 product_id = le16_to_cpu(serial->dev->descriptor.idProduct);
 
 	return product_id == FOCUS_PRODUCT_ID_UNI;
 }
 
+static int metrousb_calc_num_ports(struct usb_serial *serial,
+				   struct usb_serial_endpoints *epds)
+{
+	if (metrousb_is_unidirectional_mode(serial)) {
+		if (epds->num_interrupt_out == 0) {
+			dev_err(&serial->interface->dev, "interrupt-out endpoint missing\n");
+			return -ENODEV;
+		}
+	}
+
+	return 1;
+}
+
 static int metrousb_send_unidirectional_cmd(u8 cmd, struct usb_serial_port *port)
 {
 	int ret;
 	int actual_len;
 	u8 *buffer_cmd = NULL;
 
-	if (!metrousb_is_unidirectional_mode(port))
+	if (!metrousb_is_unidirectional_mode(port->serial))
 		return 0;
 
 	buffer_cmd = kzalloc(sizeof(cmd), GFP_KERNEL);
@@ -160,13 +174,6 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)
 	unsigned long flags = 0;
 	int result = 0;
 
-	/* Make sure the urb is initialized. */
-	if (!port->interrupt_in_urb) {
-		dev_err(&port->dev, "%s - interrupt urb not initialized\n",
-			__func__);
-		return -ENODEV;
-	}
-
 	/* Set the private data information for the port. */
 	spin_lock_irqsave(&metro_priv->lock, flags);
 	metro_priv->control_state = 0;
@@ -188,7 +195,7 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)
 		dev_err(&port->dev,
 			"%s - failed submitting interrupt in urb, error code=%d\n",
 			__func__, result);
-		goto exit;
+		return result;
 	}
 
 	/* Send activate cmd to device */
@@ -197,9 +204,14 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port)
 		dev_err(&port->dev,
 			"%s - failed to configure device, error code=%d\n",
 			__func__, result);
-		goto exit;
+		goto err_kill_urb;
 	}
-exit:
+
+	return 0;
+
+err_kill_urb:
+	usb_kill_urb(port->interrupt_in_urb);
+
 	return result;
 }
 
@@ -336,7 +348,8 @@ static struct usb_serial_driver metrousb_device = {
 	},
 	.description		= "Metrologic USB to Serial",
 	.id_table		= id_table,
-	.num_ports		= 1,
+	.num_interrupt_in	= 1,
+	.calc_num_ports		= metrousb_calc_num_ports,
 	.open			= metrousb_open,
 	.close			= metrousb_cleanup,
 	.read_int_callback	= metrousb_read_int_callback,
@@ -355,7 +368,7 @@ static struct usb_serial_driver * const serial_drivers[] = {
 
 module_usb_serial_driver(serial_drivers, id_table);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Philip Nicastro");
 MODULE_AUTHOR("Aleksey Babahin <tamerlan311@gmail.com>");
 MODULE_DESCRIPTION(DRIVER_DESC);
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index a453965f9e9a..f4df3d5bf69c 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mos7720.c
  *   Controls the Moschip 7720 usb to dual port serial converter
  *
  * Copyright 2006 Moschip Semiconductor Tech. Ltd.
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, version 2 of the License.
- *
  * Developed by:
  * 	Vijaya Kumar <vijaykumar.gn@gmail.com>
  *	Ajay Kumar <naanuajay@yahoo.com>
@@ -2043,4 +2040,4 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index e8669aae14b3..a859c2d33c29 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1,18 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
  * Clean ups from Moschip version and a few ioctl implementations by:
  *	Paul B Schroeder <pschroeder "at" uplogix "dot" com>
  *
diff --git a/drivers/usb/serial/mxuport.c b/drivers/usb/serial/mxuport.c
index 3aef091fe88b..2513ee902779 100644
--- a/drivers/usb/serial/mxuport.c
+++ b/drivers/usb/serial/mxuport.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  *	mxuport.c - MOXA UPort series driver
  *
  *	Copyright (c) 2006 Moxa Technologies Co., Ltd.
  *	Copyright (c) 2013 Andrew Lunn <andrew@lunn.ch>
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  *	Supports the following Moxa USB to serial converters:
  *	 2 ports : UPort 1250, UPort 1250I
  *	 4 ports : UPort 1410, UPort 1450, UPort 1450I
diff --git a/drivers/usb/serial/navman.c b/drivers/usb/serial/navman.c
index 2a97cdc078d5..20277c52dded 100644
--- a/drivers/usb/serial/navman.c
+++ b/drivers/usb/serial/navman.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Navman Serial USB driver
  *
  * Copyright (C) 2006 Greg Kroah-Hartman <gregkh@suse.de>
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	version 2 as published by the Free Software Foundation.
- *
  * TODO:
  *	Add termios method that uses copy_hw but also kills all echo
  *	flags as the navman is rx only so cannot echo.
@@ -115,4 +112,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 
 module_usb_serial_driver(serial_drivers, id_table);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index efcd7feed6f4..e51c9464ea42 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB ZyXEL omni.net LCD PLUS driver
  *
  * Copyright (C) 2013,2017 Johan Hovold <johan@kernel.org>
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
@@ -179,4 +176,4 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index 58657d64678b..caa0746326fd 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Opticon USB barcode to serial driver
  *
@@ -5,10 +6,6 @@
  * Copyright (C) 2011 Martin Jansen <martin.jansen@opticon.com>
  * Copyright (C) 2008 - 2009 Greg Kroah-Hartman <gregkh@suse.de>
  * Copyright (C) 2008 - 2009 Novell Inc.
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -420,4 +417,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 54bfef13966a..aaa7d901a06d 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   USB Driver for GSM modems
 
   Copyright (C) 2005  Matthias Urlichs <smurf@smurf.noris.de>
 
-  This driver is free software; you can redistribute it and/or modify
-  it under the terms of Version 2 of the GNU General Public License as
-  published by the Free Software Foundation.
-
   Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
 
   History: see the git log.
@@ -522,6 +519,7 @@ static void option_instat_callback(struct urb *urb);
 
 /* TP-LINK Incorporated products */
 #define TPLINK_VENDOR_ID			0x2357
+#define TPLINK_PRODUCT_LTE			0x000D
 #define TPLINK_PRODUCT_MA180			0x0201
 
 /* Changhong products */
@@ -2011,6 +2009,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600A) },
 	{ USB_DEVICE(PETATEL_VENDOR_ID, PETATEL_PRODUCT_NP10T_600E) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, TPLINK_PRODUCT_LTE, 0xff, 0x00, 0x00) },	/* TP-Link LTE Module */
 	{ USB_DEVICE(TPLINK_VENDOR_ID, TPLINK_PRODUCT_MA180),
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(TPLINK_VENDOR_ID, 0x9000),					/* TP-Link MA260 */
@@ -2204,4 +2203,4 @@ static void option_instat_callback(struct urb *urb)
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index b11eead469ee..ae9cb15ee02d 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ours Technology Inc. OTi-6858 USB to serial adapter driver.
  *
@@ -21,10 +22,6 @@
  * So, THIS CODE CAN DESTROY OTi-6858 AND ANY OTHER DEVICES, THAT ARE
  * CONNECTED TO IT!
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
@@ -847,4 +844,4 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(OTI6858_DESCRIPTION);
 MODULE_AUTHOR(OTI6858_AUTHOR);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/oti6858.h b/drivers/usb/serial/oti6858.h
index 704ac3a532b3..1226bf2347eb 100644
--- a/drivers/usb/serial/oti6858.h
+++ b/drivers/usb/serial/oti6858.h
@@ -1,10 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Ours Technology Inc. OTi-6858 USB to serial adapter driver.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
  */
 #ifndef __LINUX_USB_SERIAL_OTI6858_H
 #define __LINUX_USB_SERIAL_OTI6858_H
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index a585b477415d..57ae832a49ff 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Prolific PL2303 USB to serial adaptor driver
  *
@@ -6,10 +7,6 @@
  *
  * Original driver for 2.2.x by anonymous
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  */
@@ -1025,4 +1022,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION("Prolific PL2303 USB to serial adaptor driver");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index 3b5a15d1dc0d..f98fd84890de 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -1,11 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Prolific PL2303 USB to serial adaptor driver header file
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  */
 
 #define BENQ_VENDOR_ID			0x04a5
diff --git a/drivers/usb/serial/qcaux.c b/drivers/usb/serial/qcaux.c
index 6e9f8af96959..929ffba663f2 100644
--- a/drivers/usb/serial/qcaux.c
+++ b/drivers/usb/serial/qcaux.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Qualcomm USB Auxiliary Serial Port driver
  *
  * Copyright (C) 2008 Greg Kroah-Hartman <greg@kroah.com>
  * Copyright (C) 2010 Dan Williams <dcbw@redhat.com>
  *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- *
  * Devices listed here usually provide a CDC ACM port on which normal modem
  * AT commands and PPP can be used.  But when that port is in-use by PPP it
  * cannot be used simultaneously for status or signal strength.  Instead, the
@@ -87,4 +84,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 };
 
 module_usb_serial_driver(serial_drivers, id_table);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index ebc0beea69d6..e3892541a489 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Qualcomm Serial USB driver
  *
  *	Copyright (c) 2008 QUALCOMM Incorporated.
  *	Copyright (c) 2009 Greg Kroah-Hartman <gregkh@suse.de>
  *	Copyright (c) 2009 Novell Inc.
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  */
 
 #include <linux/tty.h>
@@ -148,6 +144,7 @@ static const struct usb_device_id id_table[] = {
 	{DEVICE_SWI(0x1199, 0x68a2)},	/* Sierra Wireless MC7710 */
 	{DEVICE_SWI(0x1199, 0x68c0)},	/* Sierra Wireless MC7304/MC7354 */
 	{DEVICE_SWI(0x1199, 0x901c)},	/* Sierra Wireless EM7700 */
+	{DEVICE_SWI(0x1199, 0x901e)},	/* Sierra Wireless EM7355 QDL */
 	{DEVICE_SWI(0x1199, 0x901f)},	/* Sierra Wireless EM7355 */
 	{DEVICE_SWI(0x1199, 0x9040)},	/* Sierra Wireless Modem */
 	{DEVICE_SWI(0x1199, 0x9041)},	/* Sierra Wireless MC7305/MC7355 */
@@ -174,6 +171,10 @@ static const struct usb_device_id id_table[] = {
 	{DEVICE_SWI(0x413c, 0x81b3)},	/* Dell Wireless 5809e Gobi(TM) 4G LTE Mobile Broadband Card (rev3) */
 	{DEVICE_SWI(0x413c, 0x81b5)},	/* Dell Wireless 5811e QDL */
 	{DEVICE_SWI(0x413c, 0x81b6)},	/* Dell Wireless 5811e QDL */
+	{DEVICE_SWI(0x413c, 0x81cf)},   /* Dell Wireless 5819 */
+	{DEVICE_SWI(0x413c, 0x81d0)},   /* Dell Wireless 5819 */
+	{DEVICE_SWI(0x413c, 0x81d1)},   /* Dell Wireless 5818 */
+	{DEVICE_SWI(0x413c, 0x81d2)},   /* Dell Wireless 5818 */
 
 	/* Huawei devices */
 	{DEVICE_HWI(0x03f0, 0x581d)},	/* HP lt4112 LTE/HSPA+ Gobi 4G Modem (Huawei me906e) */
diff --git a/drivers/usb/serial/quatech2.c b/drivers/usb/serial/quatech2.c
index 60e17d1444c3..958e12e1e7c7 100644
--- a/drivers/usb/serial/quatech2.c
+++ b/drivers/usb/serial/quatech2.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usb-serial driver for Quatech USB 2 devices
  *
  * Copyright (C) 2012 Bill Pemberton (wfp5p@virginia.edu)
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
- *
  *  These devices all have only 1 bulk in and 1 bulk out that is shared
  *  for all serial ports.
  *
@@ -1027,4 +1023,4 @@ static struct usb_serial_driver *const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c
index 27d7a7016298..6accbecb6318 100644
--- a/drivers/usb/serial/safe_serial.c
+++ b/drivers/usb/serial/safe_serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Safe Encapsulated USB Serial Driver
  *
@@ -5,11 +6,6 @@
  *      Copyright (C) 2001 Lineo
  *      Copyright (C) 2001 Hewlett-Packard
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * By:
  *      Stuart Lynne <sl@lineo.com>, Tom Rushworth <tbr@lineo.com>
  */
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index 4c4ac4705ac0..d189f953c891 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   USB Driver for Sierra Wireless
 
@@ -9,10 +10,6 @@
   IMPORTANT DISCLAIMER: This driver is not commercially supported by
   Sierra Wireless. Use at your own risk.
 
-  This driver is free software; you can redistribute it and/or modify
-  it under the terms of Version 2 of the GNU General Public License as
-  published by the Free Software Foundation.
-
   Portions based on the option driver by Matthias Urlichs <smurf@smurf.noris.de>
   Whom based his on the Keyspan driver by Hugh Blemings <hugh@blemings.org>
 */
@@ -1078,7 +1075,7 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
 
 module_param(nmea, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(nmea, "NMEA streaming");
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index 5167b6564c8b..b42714855364 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * spcp8x5 USB to serial adaptor driver
  *
@@ -8,11 +9,6 @@
  * Original driver for 2.6.10 pl2303 driver by
  *   Greg Kroah-Hartman (greg@kroah.com)
  * Changes for 2.6.20 by Harald Klein <hari@vt100.at>
- *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
  */
 #include <linux/kernel.h>
 #include <linux/errno.h>
diff --git a/drivers/usb/serial/ssu100.c b/drivers/usb/serial/ssu100.c
index 5aa7bbbeba3d..2083c267787b 100644
--- a/drivers/usb/serial/ssu100.c
+++ b/drivers/usb/serial/ssu100.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usb-serial driver for Quatech SSU-100
  *
@@ -576,4 +577,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 0d1727232d0c..cd2f8dc8b58c 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Symbol USB barcode to serial driver
  *
  * Copyright (C) 2013 Johan Hovold <jhovold@gmail.com>
  * Copyright (C) 2009 Greg Kroah-Hartman <gregkh@suse.de>
  * Copyright (C) 2009 Novell Inc.
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -194,4 +191,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 
 module_usb_serial_driver(serial_drivers, id_table);
 
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index 8fc3854e5e69..6b22857f6e52 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * TI 3410/5052 USB Serial Driver
  *
@@ -7,11 +8,6 @@
  *   Copyright (C) 2000-2002 Inside Out Networks
  *   Copyright (C) 2001-2002 Greg Kroah-Hartman
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  * For questions or problems with this driver, contact Texas Instruments
  * technical support, or Al Borchers <alborchers@steinerpoint.com>, or
  * Peter Berger <pberger@brimson.com>.
diff --git a/drivers/usb/serial/upd78f0730.c b/drivers/usb/serial/upd78f0730.c
index 6819a3486e5d..1ba1401d27d7 100644
--- a/drivers/usb/serial/upd78f0730.c
+++ b/drivers/usb/serial/upd78f0730.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Renesas Electronics uPD78F0730 USB to serial converter driver
  *
  * Copyright (C) 2014,2016 Maksim Salau <maksim.salau@gmail.com>
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2
- * as published by the Free Software Foundation.
- *
  * Protocol of the adaptor is described in the application note U19660EJ1V0AN00
  * μPD78F0730 8-bit Single-Chip Microcontroller
  * USB-to-Serial Conversion Software
diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
index e98b6e57b703..74172fe158df 100644
--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial "Simple" driver
  *
@@ -8,10 +9,6 @@
  * Copyright (C) 2010 Zilogic Systems <code@zilogic.com>
  * Copyright (C) 2013 Wei Shuai <cpuwolf@gmail.com>
  * Copyright (C) 2013 Linux Foundation
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -134,4 +131,4 @@ static const struct usb_device_id id_table[] = {
 MODULE_DEVICE_TABLE(usb, id_table);
 
 module_usb_serial_driver(serial_drivers, id_table);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index bb34f9f7eaf4..790e0cbe3da9 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter driver
  *
@@ -6,10 +7,6 @@
  * Copyright (C) 2000 Peter Berger (pberger@brimson.com)
  * Copyright (C) 2000 Al Borchers (borchers@steinerpoint.com)
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  * This driver was originally based on the ACM driver by Armin Fuerst (which was
  * based on a driver by Brad Keryan)
  *
@@ -1201,17 +1198,6 @@ static const struct tty_operations serial_ops = {
 
 struct tty_driver *usb_serial_tty_driver;
 
-/* Driver structure we register with the USB core */
-static struct usb_driver usb_serial_driver = {
-	.name =		"usbserial",
-	.probe =	usb_serial_probe,
-	.disconnect =	usb_serial_disconnect,
-	.suspend =	usb_serial_suspend,
-	.resume =	usb_serial_resume,
-	.no_dynamic_id =	1,
-	.supports_autosuspend =	1,
-};
-
 static int __init usb_serial_init(void)
 {
 	int result;
@@ -1247,13 +1233,6 @@ static int __init usb_serial_init(void)
 		goto exit_reg_driver;
 	}
 
-	/* register the USB driver */
-	result = usb_register(&usb_serial_driver);
-	if (result < 0) {
-		pr_err("%s - usb_register failed\n", __func__);
-		goto exit_tty;
-	}
-
 	/* register the generic driver, if we should */
 	result = usb_serial_generic_register();
 	if (result < 0) {
@@ -1264,9 +1243,6 @@ static int __init usb_serial_init(void)
 	return result;
 
 exit_generic:
-	usb_deregister(&usb_serial_driver);
-
-exit_tty:
 	tty_unregister_driver(usb_serial_tty_driver);
 
 exit_reg_driver:
@@ -1285,7 +1261,6 @@ static void __exit usb_serial_exit(void)
 
 	usb_serial_generic_deregister();
 
-	usb_deregister(&usb_serial_driver);
 	tty_unregister_driver(usb_serial_tty_driver);
 	put_tty_driver(usb_serial_tty_driver);
 	bus_unregister(&usb_serial_bus_type);
@@ -1460,4 +1435,4 @@ EXPORT_SYMBOL_GPL(usb_serial_deregister_drivers);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/usb-wwan.h b/drivers/usb/serial/usb-wwan.h
index 44b25c08c68a..d28dab4b9eff 100644
--- a/drivers/usb/serial/usb-wwan.h
+++ b/drivers/usb/serial/usb-wwan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for USB serial mobile broadband cards
  */
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index 12f4c5a91e62..ab5a2ac4993a 100644
--- a/drivers/usb/serial/usb_debug.c
+++ b/drivers/usb/serial/usb_debug.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Debug cable driver
  *
  * Copyright (C) 2006 Greg Kroah-Hartman <greg@kroah.com>
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
  */
 
 #include <linux/gfp.h>
@@ -34,13 +31,13 @@ static const struct usb_device_id id_table[] = {
 };
 
 static const struct usb_device_id dbc_id_table[] = {
-	{ USB_DEVICE(0x1d6b, 0x0004) },
+	{ USB_DEVICE(0x1d6b, 0x0011) },
 	{ },
 };
 
 static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(0x0525, 0x127a) },
-	{ USB_DEVICE(0x1d6b, 0x0004) },
+	{ USB_DEVICE(0x1d6b, 0x0011) },
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table_combined);
@@ -98,4 +95,4 @@ static struct usb_serial_driver * const serial_drivers[] = {
 };
 
 module_usb_serial_driver(serial_drivers, id_table_combined);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/usb_wwan.c b/drivers/usb/serial/usb_wwan.c
index 59bfcb3da116..107e64c42e94 100644
--- a/drivers/usb/serial/usb_wwan.c
+++ b/drivers/usb/serial/usb_wwan.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   USB Driver layer for GSM modems
 
   Copyright (C) 2005  Matthias Urlichs <smurf@smurf.noris.de>
 
-  This driver is free software; you can redistribute it and/or modify
-  it under the terms of Version 2 of the GNU General Public License as
-  published by the Free Software Foundation.
-
   Portions copied from the Keyspan driver by Hugh Blemings <hugh@blemings.org>
 
   History: see the git log.
@@ -723,4 +720,4 @@ EXPORT_SYMBOL(usb_wwan_resume);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 9f3317a940ef..f5373ed2cd45 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB HandSpring Visor, Palm m50x, and Sony Clie driver
  * (supports all of the Palm OS USB devices)
@@ -5,10 +6,6 @@
  *	Copyright (C) 1999 - 2004
  *	    Greg Kroah-Hartman (greg@kroah.com)
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License version
- *	2 as published by the Free Software Foundation.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
@@ -579,4 +576,4 @@ module_usb_serial_driver(serial_drivers, id_table_combined);
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/serial/visor.h b/drivers/usb/serial/visor.h
index 4c456dd69ce5..fe290243f1ce 100644
--- a/drivers/usb/serial/visor.h
+++ b/drivers/usb/serial/visor.h
@@ -1,14 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB HandSpring Visor driver
  *
  *	Copyright (C) 1999 - 2003
  *	    Greg Kroah-Hartman (greg@kroah.com)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver.
  *
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 55cebc1e6fec..1c7b46a8620c 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB ConnectTech WhiteHEAT driver
  *
@@ -7,11 +8,6 @@
  *	Copyright (C) 1999 - 2001
  *	    Greg Kroah-Hartman (greg@kroah.com)
  *
- *	This program is free software; you can redistribute it and/or modify
- *	it under the terms of the GNU General Public License as published by
- *	the Free Software Foundation; either version 2 of the License, or
- *	(at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  */
diff --git a/drivers/usb/serial/whiteheat.h b/drivers/usb/serial/whiteheat.h
index 38065df4d2d8..72c1b0cf4063 100644
--- a/drivers/usb/serial/whiteheat.h
+++ b/drivers/usb/serial/whiteheat.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB ConnectTech WhiteHEAT driver
  *
@@ -7,11 +8,6 @@
  *      Copyright (C) 1999, 2000
  *          Greg Kroah-Hartman (greg@kroah.com)
  *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
  *
diff --git a/drivers/usb/serial/wishbone-serial.c b/drivers/usb/serial/wishbone-serial.c
index 4fed4a0bd702..ff4092f9b33c 100644
--- a/drivers/usb/serial/wishbone-serial.c
+++ b/drivers/usb/serial/wishbone-serial.c
@@ -1,13 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Wishbone-Serial adapter driver
  *
  * Copyright (C) 2013 Wesley W. Terpstra <w.terpstra@gsi.de>
  * Copyright (C) 2013 GSI Helmholtz Centre for Heavy Ion Research GmbH
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/xsens_mt.c b/drivers/usb/serial/xsens_mt.c
index 3837d5113bb2..cf262c9a9638 100644
--- a/drivers/usb/serial/xsens_mt.c
+++ b/drivers/usb/serial/xsens_mt.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xsens MT USB driver
  *
  * Copyright (C) 2013 Xsens <info@xsens.com>
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License version
- *  2 as published by the Free Software Foundation.
  */
 
 #include <linux/kernel.h>
@@ -69,4 +66,4 @@ module_usb_serial_driver(serial_drivers, id_table);
 
 MODULE_AUTHOR("Frans Klaver <frans.klaver@xsens.com>");
 MODULE_DESCRIPTION("USB-serial driver for Xsens motion trackers");
-MODULE_LICENSE("GPL");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/storage/Makefile b/drivers/usb/storage/Makefile
index 4cd55481b309..c5126a4cd954 100644
--- a/drivers/usb/storage/Makefile
+++ b/drivers/usb/storage/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the USB Mass Storage device drivers.
 #
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 878b4b8761f5..900591df8bb2 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Alauda-based card readers
  *
@@ -15,20 +16,6 @@
  * (very old) vendor-supplied GPL sma03 driver.
  *
  * For protocol info, see http://alauda.sourceforge.net
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index 5e4af44d7d9f..4825902377eb 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Support for emulating SAT (ata pass through) on devices based
  *       on the Cypress USB/ATA bridge supporting ATACB.
  *
  * Copyright (c) 2008 Matthieu Castet (castet.matthieu@free.fr)
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c
index 723197af6ec5..09353be199be 100644
--- a/drivers/usb/storage/datafab.c
+++ b/drivers/usb/storage/datafab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Datafab USB Compact Flash reader
  *
@@ -18,20 +19,6 @@
  *
  * Other contributors:
  *   (c) 2002 Alan Stern <stern@rowland.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
diff --git a/drivers/usb/storage/debug.c b/drivers/usb/storage/debug.c
index 8d20804a59e6..e5a4969d15ae 100644
--- a/drivers/usb/storage/debug.c
+++ b/drivers/usb/storage/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * Debugging Functions Source Code File
@@ -27,20 +28,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/storage/debug.h b/drivers/usb/storage/debug.h
index 8ab73299b650..8833cd4f78b6 100644
--- a/drivers/usb/storage/debug.h
+++ b/drivers/usb/storage/debug.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * Debugging Functions Header File
@@ -24,20 +25,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef _DEBUG_H_
diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c
index 28100374f7bd..93cf57ac47d6 100644
--- a/drivers/usb/storage/ene_ub6250.c
+++ b/drivers/usb/storage/ene_ub6250.c
@@ -1,19 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
+// SPDX-License-Identifier: GPL-2.0+
 #include <linux/jiffies.h>
 #include <linux/errno.h>
 #include <linux/module.h>
diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c
index c0a5d954414b..ec4d92c92762 100644
--- a/drivers/usb/storage/freecom.c
+++ b/drivers/usb/storage/freecom.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Freecom USB/IDE adaptor
  *
@@ -8,20 +9,6 @@
  * Current development and maintenance by:
  *   (C) 2000 David Brown <usb-storage@davidb.org>
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  * This driver was developed with information provided in FREECOM's USB
  * Programmers Reference Guide.  For further information contact Freecom
  * (http://www.freecom.de/)
diff --git a/drivers/usb/storage/initializers.c b/drivers/usb/storage/initializers.c
index d9d8c17e05d1..93a6bcf77806 100644
--- a/drivers/usb/storage/initializers.c
+++ b/drivers/usb/storage/initializers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Special Initializers for certain USB Mass Storage devices
  *
@@ -20,20 +21,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/errno.h>
diff --git a/drivers/usb/storage/initializers.h b/drivers/usb/storage/initializers.h
index 039abf4d1cb7..e4cf28efb4a7 100644
--- a/drivers/usb/storage/initializers.h
+++ b/drivers/usb/storage/initializers.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Header file for Special Initializers for certain USB Mass Storage devices
  *
@@ -20,20 +21,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include "usb.h"
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 6a7720e66595..f5e4500d9970 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Transport & Protocol Driver for In-System Design, Inc. ISD200 ASIC
  *
@@ -14,20 +15,6 @@
  * does implement an interface, the ATA Command Block (ATACB) which provides
  * a means of passing ATA commands and ATA register accesses to a device.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- *
  * History:
  *
  *  2002-10-19: Removed the specialized transfer routines.
diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c
index 011e5270690a..917f170c4124 100644
--- a/drivers/usb/storage/jumpshot.c
+++ b/drivers/usb/storage/jumpshot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Lexar "Jumpshot" Compact Flash reader
  *
@@ -19,20 +20,6 @@
  * Developed with the assistance of:
  *
  *   (C) 2002 Alan Stern <stern@rowland.org>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
  
  /*
diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c
index b05ba4929f00..edcf2be0e0eb 100644
--- a/drivers/usb/storage/karma.c
+++ b/drivers/usb/storage/karma.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Rio Karma
  *
  *   (c) 2006 Bob Copeland <me@bobcopeland.com>
  *   (c) 2006 Keith Bennett <keith@mcs.st-and.ac.uk>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index acc3d03d8c1e..39a5009a41a6 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Support for the Maxtor OneTouch USB hard drive's button
  *
@@ -10,24 +11,6 @@
  * Based on usbmouse.c (Vojtech Pavlik) and xpad.c (Marko Friedemann)
  *
  */
-
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
 #include <linux/kernel.h>
 #include <linux/input.h>
 #include <linux/slab.h>
diff --git a/drivers/usb/storage/option_ms.c b/drivers/usb/storage/option_ms.c
index 57282f12317b..7c0b05a36554 100644
--- a/drivers/usb/storage/option_ms.c
+++ b/drivers/usb/storage/option_ms.c
@@ -1,23 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Option High Speed Mobile Devices.
  *
  *   (c) 2008 Dan Williams <dcbw@redhat.com>
  *
  * Inspiration taken from sierra_ms.c by Kevin Lloyd <klloyd@sierrawireless.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/usb.h>
@@ -41,7 +28,7 @@ MODULE_PARM_DESC(option_zero_cd, "ZeroCD mode (1=Force Modem (default),"
 
 static int option_rezero(struct us_data *us)
 {
-	const unsigned char rezero_msg[] = {
+	static const unsigned char rezero_msg[] = {
 	  0x55, 0x53, 0x42, 0x43, 0x78, 0x56, 0x34, 0x12,
 	  0x01, 0x00, 0x00, 0x00, 0x80, 0x00, 0x06, 0x01,
 	  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
@@ -87,7 +74,7 @@ out:
 
 static int option_inquiry(struct us_data *us)
 {
-	const unsigned char inquiry_msg[] = {
+	static const unsigned char inquiry_msg[] = {
 	  0x55, 0x53, 0x42, 0x43, 0x12, 0x34, 0x56, 0x78,
 	  0x24, 0x00, 0x00, 0x00, 0x80, 0x00, 0x06, 0x12,
 	  0x00, 0x00, 0x00, 0x24, 0x00, 0x00, 0x00, 0x00,
diff --git a/drivers/usb/storage/option_ms.h b/drivers/usb/storage/option_ms.h
index b6e448cab039..6439992184fa 100644
--- a/drivers/usb/storage/option_ms.h
+++ b/drivers/usb/storage/option_ms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OPTION_MS_H_
 #define _OPTION_MS_H_
 extern int option_ms_init(struct us_data *us);
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c
index 74c38870a17e..f3f2a93f52e1 100644
--- a/drivers/usb/storage/protocol.c
+++ b/drivers/usb/storage/protocol.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  *
@@ -27,20 +28,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/highmem.h>
diff --git a/drivers/usb/storage/protocol.h b/drivers/usb/storage/protocol.h
index a55666880b7b..9198396e8c6e 100644
--- a/drivers/usb/storage/protocol.h
+++ b/drivers/usb/storage/protocol.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * Protocol Functions Header File
@@ -21,20 +22,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef _PROTOCOL_H_
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index ec83b3b5efa9..48e2e32c97e8 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Realtek RTS51xx USB card reader
  *
  * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, see <http://www.gnu.org/licenses/>.
- *
  * Author:
  *   wwang (wei_wang@realsil.com.cn)
  *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c
index 8cd2926fb1fe..585efd120193 100644
--- a/drivers/usb/storage/scsiglue.c
+++ b/drivers/usb/storage/scsiglue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * SCSI layer glue code
@@ -28,20 +29,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/module.h>
diff --git a/drivers/usb/storage/scsiglue.h b/drivers/usb/storage/scsiglue.h
index d0a331dd9bc5..bf99c6201331 100644
--- a/drivers/usb/storage/scsiglue.h
+++ b/drivers/usb/storage/scsiglue.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * SCSI Connecting Glue Header File
@@ -21,20 +22,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef _SCSIGLUE_H_
diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c
index 44f8ffccd031..1cf7dbfe277c 100644
--- a/drivers/usb/storage/sddr09.c
+++ b/drivers/usb/storage/sddr09.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for SanDisk SDDR-09 SmartMedia reader
  *
@@ -11,20 +12,6 @@
  * been programmed to obey a certain limited set of SCSI commands.
  * This driver translates the "real" SCSI commands to the SDDR-09 SCSI
  * commands.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c
index 147c50b3e00f..8c814b2ec9b2 100644
--- a/drivers/usb/storage/sddr55.c
+++ b/drivers/usb/storage/sddr55.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for SanDisk SDDR-55 SmartMedia reader
  *
@@ -7,20 +8,6 @@
  *
  * Current development and maintenance by:
  *   (c) 2002 Simon Munton
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/jiffies.h>
@@ -604,6 +591,7 @@ static unsigned long sddr55_get_capacity(struct us_data *us) {
 	case 0x64:
 		info->pageshift = 8;
 		info->smallpageshift = 1;
+		/* fall through */
 	case 0x5d: // 5d is a ROM card with pagesize 512.
 		return 0x00200000;
 
diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c
index 3b0294e4df93..854498e1012c 100644
--- a/drivers/usb/storage/shuttle_usbat.c
+++ b/drivers/usb/storage/shuttle_usbat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable
  *
@@ -26,20 +27,6 @@
  *
  * See the Kconfig help text for a list of devices known to be supported by
  * this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/errno.h>
diff --git a/drivers/usb/storage/sierra_ms.c b/drivers/usb/storage/sierra_ms.c
index 9a51019ac7b2..daf62448483f 100644
--- a/drivers/usb/storage/sierra_ms.c
+++ b/drivers/usb/storage/sierra_ms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
diff --git a/drivers/usb/storage/sierra_ms.h b/drivers/usb/storage/sierra_ms.h
index bb48634ac1fc..3e9da537d54a 100644
--- a/drivers/usb/storage/sierra_ms.h
+++ b/drivers/usb/storage/sierra_ms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SIERRA_MS_H_
 #define _SIERRA_MS_H_
 extern int sierra_ms_init(struct us_data *us);
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index 1a59f335b063..d947957f3635 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  *
@@ -28,20 +29,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/sched.h>
@@ -834,13 +821,25 @@ Retry_Sense:
 			if (result == USB_STOR_TRANSPORT_GOOD) {
 				srb->result = SAM_STAT_GOOD;
 				srb->sense_buffer[0] = 0x0;
+			}
+
+			/*
+			 * ATA-passthru commands use sense data to report
+			 * the command completion status, and often devices
+			 * return Check Condition status when nothing is
+			 * wrong.
+			 */
+			else if (srb->cmnd[0] == ATA_16 ||
+					srb->cmnd[0] == ATA_12) {
+				/* leave the data alone */
+			}
 
 			/*
 			 * If there was a problem, report an unspecified
 			 * hardware error to prevent the higher layers from
 			 * entering an infinite retry loop.
 			 */
-			} else {
+			else {
 				srb->result = DID_ERROR << 16;
 				if ((sshdr.response_code & 0x72) == 0x72)
 					srb->sense_buffer[1] = HARDWARE_ERROR;
diff --git a/drivers/usb/storage/transport.h b/drivers/usb/storage/transport.h
index dae3ecd2e6cf..f559dc575f4f 100644
--- a/drivers/usb/storage/transport.h
+++ b/drivers/usb/storage/transport.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * Transport Functions Header File
@@ -21,20 +22,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef _TRANSPORT_H_
diff --git a/drivers/usb/storage/uas-detect.h b/drivers/usb/storage/uas-detect.h
index f58caa9e6a27..1fcd758a961f 100644
--- a/drivers/usb/storage/uas-detect.h
+++ b/drivers/usb/storage/uas-detect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
 #include "usb.h"
@@ -9,7 +10,8 @@ static int uas_is_interface(struct usb_host_interface *intf)
 		intf->desc.bInterfaceProtocol == USB_PR_UAS);
 }
 
-static int uas_find_uas_alt_setting(struct usb_interface *intf)
+static struct usb_host_interface *uas_find_uas_alt_setting(
+		struct usb_interface *intf)
 {
 	int i;
 
@@ -17,10 +19,10 @@ static int uas_find_uas_alt_setting(struct usb_interface *intf)
 		struct usb_host_interface *alt = &intf->altsetting[i];
 
 		if (uas_is_interface(alt))
-			return alt->desc.bAlternateSetting;
+			return alt;
 	}
 
-	return -ENODEV;
+	return NULL;
 }
 
 static int uas_find_endpoints(struct usb_host_interface *alt,
@@ -58,14 +60,14 @@ static int uas_use_uas_driver(struct usb_interface *intf,
 	struct usb_device *udev = interface_to_usbdev(intf);
 	struct usb_hcd *hcd = bus_to_hcd(udev->bus);
 	unsigned long flags = id->driver_info;
-	int r, alt;
-
+	struct usb_host_interface *alt;
+	int r;
 
 	alt = uas_find_uas_alt_setting(intf);
-	if (alt < 0)
+	if (!alt)
 		return 0;
 
-	r = uas_find_endpoints(&intf->altsetting[alt], eps);
+	r = uas_find_endpoints(alt, eps);
 	if (r < 0)
 		return 0;
 
diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index cfb1e3bbd434..5d04c40ee40a 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Attached SCSI
  * Note that this is not the same as the USB Mass Storage driver
@@ -5,8 +6,6 @@
  * Copyright Hans de Goede <hdegoede@redhat.com> for Red Hat, Inc. 2013 - 2016
  * Copyright Matthew Wilcox for Intel Corp, 2010
  * Copyright Sarah Sharp for Intel Corp, 2010
- *
- * Distributed under the terms of the GNU GPL, version two.
  */
 
 #include <linux/blkdev.h>
@@ -668,6 +667,7 @@ static int uas_queuecommand_lck(struct scsi_cmnd *cmnd,
 		break;
 	case DMA_BIDIRECTIONAL:
 		cmdinfo->state |= ALLOC_DATA_IN_URB | SUBMIT_DATA_IN_URB;
+		/* fall through */
 	case DMA_TO_DEVICE:
 		cmdinfo->state |= ALLOC_DATA_OUT_URB | SUBMIT_DATA_OUT_URB;
 	case DMA_NONE:
@@ -873,14 +873,14 @@ MODULE_DEVICE_TABLE(usb, uas_usb_ids);
 static int uas_switch_interface(struct usb_device *udev,
 				struct usb_interface *intf)
 {
-	int alt;
+	struct usb_host_interface *alt;
 
 	alt = uas_find_uas_alt_setting(intf);
-	if (alt < 0)
-		return alt;
+	if (!alt)
+		return -ENODEV;
 
-	return usb_set_interface(udev,
-			intf->altsetting[0].desc.bInterfaceNumber, alt);
+	return usb_set_interface(udev, alt->desc.bInterfaceNumber,
+			alt->desc.bAlternateSetting);
 }
 
 static int uas_configure_endpoints(struct uas_dev_info *devinfo)
diff --git a/drivers/usb/storage/unusual_alauda.h b/drivers/usb/storage/unusual_alauda.h
index 763bc03032a1..0ec8c99a4976 100644
--- a/drivers/usb/storage/unusual_alauda.h
+++ b/drivers/usb/storage/unusual_alauda.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for the Alauda-based card readers
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_ALAUDA) || \
diff --git a/drivers/usb/storage/unusual_cypress.h b/drivers/usb/storage/unusual_cypress.h
index e9a2eb88869a..fb99e526cd48 100644
--- a/drivers/usb/storage/unusual_cypress.h
+++ b/drivers/usb/storage/unusual_cypress.h
@@ -1,20 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for devices based on the Cypress USB/ATA bridge
  *	with support for ATACB
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_CYPRESS_ATACB) || \
diff --git a/drivers/usb/storage/unusual_datafab.h b/drivers/usb/storage/unusual_datafab.h
index 5049b6bbe5d5..fdab5e7d68ca 100644
--- a/drivers/usb/storage/unusual_datafab.h
+++ b/drivers/usb/storage/unusual_datafab.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for the Datafab USB Compact Flash reader
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_DATAFAB) || \
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index 5a70c33ef0e0..2968046e7c05 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * Unusual Devices File
@@ -10,20 +11,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
@@ -1459,6 +1446,13 @@ UNUSUAL_DEV( 0x0bc2, 0x3010, 0x0000, 0x0000,
 		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
 		US_FL_SANE_SENSE ),
 
+/* Reported by Kris Lindgren <kris.lindgren@gmail.com> */
+UNUSUAL_DEV( 0x0bc2, 0x3332, 0x0000, 0x9999,
+		"Seagate",
+		"External",
+		USB_SC_DEVICE, USB_PR_DEVICE, NULL,
+		US_FL_NO_WP_DETECT ),
+
 UNUSUAL_DEV(  0x0d49, 0x7310, 0x0000, 0x9999,
 		"Maxtor",
 		"USB to SATA",
diff --git a/drivers/usb/storage/unusual_ene_ub6250.h b/drivers/usb/storage/unusual_ene_ub6250.h
index 5667f5d365c6..9134b91fbd73 100644
--- a/drivers/usb/storage/unusual_ene_ub6250.h
+++ b/drivers/usb/storage/unusual_ene_ub6250.h
@@ -1,20 +1,4 @@
-/*
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
+// SPDX-License-Identifier: GPL-2.0+
 #if defined(CONFIG_USB_STORAGE_ENE_UB6250) || \
 		defined(CONFIG_USB_STORAGE_ENE_UB6250_MODULE)
 
diff --git a/drivers/usb/storage/unusual_freecom.h b/drivers/usb/storage/unusual_freecom.h
index 1f5aab42ece2..949231c7a36b 100644
--- a/drivers/usb/storage/unusual_freecom.h
+++ b/drivers/usb/storage/unusual_freecom.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for the Freecom USB/IDE adaptor
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_FREECOM) || \
diff --git a/drivers/usb/storage/unusual_isd200.h b/drivers/usb/storage/unusual_isd200.h
index 9b6862ec3d4f..d03a02cc904e 100644
--- a/drivers/usb/storage/unusual_isd200.h
+++ b/drivers/usb/storage/unusual_isd200.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for In-System Design, Inc. ISD200 ASIC
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_ISD200) || \
diff --git a/drivers/usb/storage/unusual_jumpshot.h b/drivers/usb/storage/unusual_jumpshot.h
index 413e64fa6b95..c323338881ef 100644
--- a/drivers/usb/storage/unusual_jumpshot.h
+++ b/drivers/usb/storage/unusual_jumpshot.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for the Lexar "Jumpshot" Compact Flash reader
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_JUMPSHOT) || \
diff --git a/drivers/usb/storage/unusual_karma.h b/drivers/usb/storage/unusual_karma.h
index e6fad3aeae20..8f1eebd71d2c 100644
--- a/drivers/usb/storage/unusual_karma.h
+++ b/drivers/usb/storage/unusual_karma.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for the Rio Karma
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_KARMA) || \
diff --git a/drivers/usb/storage/unusual_onetouch.h b/drivers/usb/storage/unusual_onetouch.h
index 425dc22f345a..c76d4e990f7b 100644
--- a/drivers/usb/storage/unusual_onetouch.h
+++ b/drivers/usb/storage/unusual_onetouch.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for the Maxtor OneTouch USB hard drive's button
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_ONETOUCH) || \
diff --git a/drivers/usb/storage/unusual_realtek.h b/drivers/usb/storage/unusual_realtek.h
index 8fe624ad302a..d17cd95b55bb 100644
--- a/drivers/usb/storage/unusual_realtek.h
+++ b/drivers/usb/storage/unusual_realtek.h
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for Realtek RTS51xx USB card reader
  *
  * Copyright(c) 2009 Realtek Semiconductor Corp. All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, see <http://www.gnu.org/licenses/>.
- *
  * Author:
  *   wwang (wei_wang@realsil.com.cn)
  *   No. 450, Shenhu Road, Suzhou Industry Park, Suzhou, China
diff --git a/drivers/usb/storage/unusual_sddr09.h b/drivers/usb/storage/unusual_sddr09.h
index d9d38ac4abf9..650cf2862754 100644
--- a/drivers/usb/storage/unusual_sddr09.h
+++ b/drivers/usb/storage/unusual_sddr09.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for SanDisk SDDR-09 SmartMedia reader
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_SDDR09) || \
diff --git a/drivers/usb/storage/unusual_sddr55.h b/drivers/usb/storage/unusual_sddr55.h
index ebb1d1c6c467..e89df2cea7bd 100644
--- a/drivers/usb/storage/unusual_sddr55.h
+++ b/drivers/usb/storage/unusual_sddr55.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for SanDisk SDDR-55 SmartMedia reader
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_SDDR55) || \
diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h
index cde115359793..d520374a824e 100644
--- a/drivers/usb/storage/unusual_uas.h
+++ b/drivers/usb/storage/unusual_uas.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Attached SCSI devices - Unusual Devices File
  *
@@ -6,20 +7,6 @@
  * Based on the same file for the usb-storage driver, which is:
  *   (c) 2000-2002 Matthew Dharm (mdharm-usb@one-eyed-alien.net)
  *   (c) 2000 Adam J. Richter (adam@yggdrasil.com), Yggdrasil Computing, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 /*
diff --git a/drivers/usb/storage/unusual_usbat.h b/drivers/usb/storage/unusual_usbat.h
index 2044ad5ef5e4..05abf6870b8f 100644
--- a/drivers/usb/storage/unusual_usbat.h
+++ b/drivers/usb/storage/unusual_usbat.h
@@ -1,19 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Unusual Devices File for SCM Microsystems (a.k.a. Shuttle) USB-ATAPI cable
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #if defined(CONFIG_USB_STORAGE_USBAT) || \
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index 0dceb9fa3a06..a0c07e05a8f1 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  *
@@ -30,20 +31,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifdef CONFIG_USB_STORAGE_DEBUG
@@ -332,7 +319,7 @@ static int usb_stor_control_thread(void * __us)
 
 		/* When we are called with no command pending, we're done */
 		srb = us->srb;
-		if (us->srb == NULL) {
+		if (srb == NULL) {
 			scsi_unlock(host);
 			mutex_unlock(&us->dev_mutex);
 			usb_stor_dbg(us, "-- exiting\n");
@@ -341,7 +328,7 @@ static int usb_stor_control_thread(void * __us)
 
 		/* has the command timed out *already* ? */
 		if (test_bit(US_FLIDX_TIMED_OUT, &us->dflags)) {
-			us->srb->result = DID_ABORT << 16;
+			srb->result = DID_ABORT << 16;
 			goto SkipForAbort;
 		}
 
@@ -351,35 +338,35 @@ static int usb_stor_control_thread(void * __us)
 		 * reject the command if the direction indicator
 		 * is UNKNOWN
 		 */
-		if (us->srb->sc_data_direction == DMA_BIDIRECTIONAL) {
+		if (srb->sc_data_direction == DMA_BIDIRECTIONAL) {
 			usb_stor_dbg(us, "UNKNOWN data direction\n");
-			us->srb->result = DID_ERROR << 16;
+			srb->result = DID_ERROR << 16;
 		}
 
 		/*
 		 * reject if target != 0 or if LUN is higher than
 		 * the maximum known LUN
 		 */
-		else if (us->srb->device->id &&
+		else if (srb->device->id &&
 				!(us->fflags & US_FL_SCM_MULT_TARG)) {
 			usb_stor_dbg(us, "Bad target number (%d:%llu)\n",
-				     us->srb->device->id,
-				     us->srb->device->lun);
-			us->srb->result = DID_BAD_TARGET << 16;
+				     srb->device->id,
+				     srb->device->lun);
+			srb->result = DID_BAD_TARGET << 16;
 		}
 
-		else if (us->srb->device->lun > us->max_lun) {
+		else if (srb->device->lun > us->max_lun) {
 			usb_stor_dbg(us, "Bad LUN (%d:%llu)\n",
-				     us->srb->device->id,
-				     us->srb->device->lun);
-			us->srb->result = DID_BAD_TARGET << 16;
+				     srb->device->id,
+				     srb->device->lun);
+			srb->result = DID_BAD_TARGET << 16;
 		}
 
 		/*
 		 * Handle those devices which need us to fake
 		 * their inquiry data
 		 */
-		else if ((us->srb->cmnd[0] == INQUIRY) &&
+		else if ((srb->cmnd[0] == INQUIRY) &&
 			    (us->fflags & US_FL_FIX_INQUIRY)) {
 			unsigned char data_ptr[36] = {
 			    0x00, 0x80, 0x02, 0x02,
@@ -387,13 +374,13 @@ static int usb_stor_control_thread(void * __us)
 
 			usb_stor_dbg(us, "Faking INQUIRY command\n");
 			fill_inquiry_response(us, data_ptr, 36);
-			us->srb->result = SAM_STAT_GOOD;
+			srb->result = SAM_STAT_GOOD;
 		}
 
 		/* we've got a command, let's do it! */
 		else {
-			US_DEBUG(usb_stor_show_command(us, us->srb));
-			us->proto_handler(us->srb, us);
+			US_DEBUG(usb_stor_show_command(us, srb));
+			us->proto_handler(srb, us);
 			usb_mark_last_busy(us->pusb_dev);
 		}
 
@@ -401,7 +388,7 @@ static int usb_stor_control_thread(void * __us)
 		scsi_lock(host);
 
 		/* was the command aborted? */
-		if (us->srb->result == DID_ABORT << 16) {
+		if (srb->result == DID_ABORT << 16) {
 SkipForAbort:
 			usb_stor_dbg(us, "scsi command aborted\n");
 			srb = NULL;	/* Don't call srb->scsi_done() */
diff --git a/drivers/usb/storage/usb.h b/drivers/usb/storage/usb.h
index 8fae28b40bb4..90133e16bec5 100644
--- a/drivers/usb/storage/usb.h
+++ b/drivers/usb/storage/usb.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage compliant devices
  * Main Header File
@@ -24,20 +25,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #ifndef _USB_H_
diff --git a/drivers/usb/storage/usual-tables.c b/drivers/usb/storage/usual-tables.c
index 499669bcf700..83ad01747eed 100644
--- a/drivers/usb/storage/usual-tables.c
+++ b/drivers/usb/storage/usual-tables.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Driver for USB Mass Storage devices
  * Usual Tables File for usb-storage and libusual
@@ -6,20 +7,6 @@
  *
  * Please see http://www.one-eyed-alien.net/~mdharm/linux-usb for more
  * information about this driver.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index bc1b7745f1d4..465d7da849c3 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -4,6 +4,18 @@ menu "USB Power Delivery and Type-C drivers"
 config TYPEC
 	tristate
 
+config TYPEC_TCPM
+	tristate "USB Type-C Port Controller Manager"
+	depends on USB
+	select TYPEC
+	help
+	  The Type-C Port Controller Manager provides a USB PD and USB Type-C
+	  state machine for use with Type-C Port Controllers.
+
+if TYPEC_TCPM
+
+source "drivers/usb/typec/fusb302/Kconfig"
+
 config TYPEC_WCOVE
 	tristate "Intel WhiskeyCove PMIC USB Type-C PHY driver"
 	depends on ACPI
@@ -19,6 +31,19 @@ config TYPEC_WCOVE
 	  To compile this driver as module, choose M here: the module will be
 	  called typec_wcove
 
+endif
+
 source "drivers/usb/typec/ucsi/Kconfig"
 
+config TYPEC_TPS6598X
+	tristate "TI TPS6598x USB Power Delivery controller driver"
+	depends on I2C
+	select TYPEC
+	help
+	  Say Y or M here if your system has TI TPS65982 or TPS65983 USB Power
+	  Delivery controller.
+
+	  If you choose to build this driver as a dynamically linked module, the
+	  module will be called tps6598x.ko.
+
 endmenu
diff --git a/drivers/usb/typec/Makefile b/drivers/usb/typec/Makefile
index bc214f15f1b5..bb3138a6eaac 100644
--- a/drivers/usb/typec/Makefile
+++ b/drivers/usb/typec/Makefile
@@ -1,3 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TYPEC)		+= typec.o
+obj-$(CONFIG_TYPEC_TCPM)	+= tcpm.o
+obj-y				+= fusb302/
 obj-$(CONFIG_TYPEC_WCOVE)	+= typec_wcove.o
 obj-$(CONFIG_TYPEC_UCSI)	+= ucsi/
+obj-$(CONFIG_TYPEC_TPS6598X)	+= tps6598x.o
diff --git a/drivers/staging/typec/fusb302/Kconfig b/drivers/usb/typec/fusb302/Kconfig
index 48a4f2fcee03..48a4f2fcee03 100644
--- a/drivers/staging/typec/fusb302/Kconfig
+++ b/drivers/usb/typec/fusb302/Kconfig
diff --git a/drivers/staging/typec/fusb302/Makefile b/drivers/usb/typec/fusb302/Makefile
index 207efa5fbab8..3b51b33631a0 100644
--- a/drivers/staging/typec/fusb302/Makefile
+++ b/drivers/usb/typec/fusb302/Makefile
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_TYPEC_FUSB302)	+= fusb302.o
diff --git a/drivers/staging/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c
index fc6a3cf74eb3..72cb060b3fca 100644
--- a/drivers/staging/typec/fusb302/fusb302.c
+++ b/drivers/usb/typec/fusb302/fusb302.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2016-2017 Google, Inc
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  * Fairchild FUSB302 Type-C Chip Driver
  */
 
@@ -37,11 +28,11 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <linux/usb/typec.h>
+#include <linux/usb/tcpm.h>
+#include <linux/usb/pd.h>
 #include <linux/workqueue.h>
 
 #include "fusb302_reg.h"
-#include "../tcpm.h"
-#include "../pd.h"
 
 /*
  * When the device is SNK, BC_LVL interrupt is used to monitor cc pins
diff --git a/drivers/staging/typec/fusb302/fusb302_reg.h b/drivers/usb/typec/fusb302/fusb302_reg.h
index 0682e63de773..00b39d365478 100644
--- a/drivers/staging/typec/fusb302/fusb302_reg.h
+++ b/drivers/usb/typec/fusb302/fusb302_reg.h
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2016-2017 Google, Inc
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  * Fairchild FUSB302 Type-C Chip Driver
  */
 
diff --git a/drivers/staging/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index 8af62e74d54c..c166fc77dfb8 100644
--- a/drivers/staging/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -1,16 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2015-2017 Google, Inc
  *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  * USB Power Delivery protocol stack.
  */
 
@@ -26,14 +17,13 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
+#include <linux/usb/pd.h>
+#include <linux/usb/pd_bdo.h>
+#include <linux/usb/pd_vdo.h>
+#include <linux/usb/tcpm.h>
 #include <linux/usb/typec.h>
 #include <linux/workqueue.h>
 
-#include "pd.h"
-#include "pd_vdo.h"
-#include "pd_bdo.h"
-#include "tcpm.h"
-
 #define FOREACH_STATE(S)			\
 	S(INVALID_STATE),			\
 	S(DRP_TOGGLING),			\
@@ -908,27 +898,6 @@ static void svdm_consume_identity(struct tcpm_port *port, const __le32 *payload,
 
 	memset(&port->mode_data, 0, sizeof(port->mode_data));
 
-#if 0 /* Not really a match */
-	switch (PD_IDH_PTYPE(vdo)) {
-	case IDH_PTYPE_UNDEF:
-		port->partner.type = TYPEC_PARTNER_NONE; /* no longer exists */
-		break;
-	case IDH_PTYPE_HUB:
-		break;
-	case IDH_PTYPE_PERIPH:
-		break;
-	case IDH_PTYPE_PCABLE:
-		break;
-	case IDH_PTYPE_ACABLE:
-		break;
-	case IDH_PTYPE_AMA:
-		port->partner.type = TYPEC_PARTNER_ALTMODE;
-		break;
-	default:
-		break;
-	}
-#endif
-
 	port->partner_ident.id_header = vdo;
 	port->partner_ident.cert_stat = le32_to_cpu(payload[VDO_INDEX_CSTAT]);
 	port->partner_ident.product = product;
@@ -1008,7 +977,7 @@ static void svdm_consume_modes(struct tcpm_port *port, const __le32 *payload,
 	}
 	port->partner_altmode[pmdata->altmodes] =
 		typec_partner_register_altmode(port->partner, paltmode);
-	if (port->partner_altmode[pmdata->altmodes] == NULL) {
+	if (!port->partner_altmode[pmdata->altmodes]) {
 		tcpm_log(port,
 			 "Failed to register alternate modes for SVID 0x%04x",
 			 paltmode->svid);
@@ -1103,11 +1072,7 @@ static int tcpm_pd_svdm(struct tcpm_port *port, const __le32 *payload, int cnt,
 				response[0] = VDO(svid, 1, CMD_DISCOVER_MODES);
 				rlen = 1;
 			} else {
-#if 0
-				response[0] = pd_dfp_enter_mode(port, 0, 0);
-				if (response[0])
-					rlen = 1;
-#endif
+				/* enter alternate mode if/when implemented */
 			}
 			break;
 		case CMD_ENTER_MODE:
@@ -1145,10 +1110,6 @@ static void tcpm_handle_vdm_request(struct tcpm_port *port,
 
 	if (PD_VDO_SVDM(p0))
 		rlen = tcpm_pd_svdm(port, payload, cnt, response);
-#if 0
-	else
-		rlen = tcpm_pd_custom_vdm(port, cnt, payload, response);
-#endif
 
 	if (rlen > 0) {
 		tcpm_queue_vdm(port, response[0], &response[1], rlen - 1);
@@ -2442,7 +2403,6 @@ static void run_state_machine(struct tcpm_port *port)
 			tcpm_set_state(port, SNK_STARTUP, 0);
 		break;
 	case SNK_STARTUP:
-		/* XXX: callback into infrastructure */
 		opmode =  tcpm_get_pwr_opmode(port->polarity ?
 					      port->cc2 : port->cc1);
 		typec_set_pwr_opmode(port->typec_port, opmode);
@@ -3589,11 +3549,6 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
 
 	port->partner_desc.identity = &port->partner_ident;
 	port->port_type = tcpc->config->type;
-	/*
-	 * TODO:
-	 *  - alt_modes, set_alt_mode
-	 *  - {debug,audio}_accessory
-	 */
 
 	port->typec_port = typec_register_port(port->dev, &port->typec_caps);
 	if (!port->typec_port) {
@@ -3638,6 +3593,7 @@ void tcpm_unregister_port(struct tcpm_port *port)
 {
 	int i;
 
+	tcpm_reset_port(port);
 	for (i = 0; i < ARRAY_SIZE(port->port_altmode); i++)
 		typec_unregister_altmode(port->port_altmode[i]);
 	typec_unregister_port(port->typec_port);
diff --git a/drivers/usb/typec/tps6598x.c b/drivers/usb/typec/tps6598x.c
new file mode 100644
index 000000000000..2719f5d382f7
--- /dev/null
+++ b/drivers/usb/typec/tps6598x.c
@@ -0,0 +1,473 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Driver for TI TPS6598x USB Power Delivery controller family
+ *
+ * Copyright (C) 2017, Intel Corporation
+ * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/interrupt.h>
+#include <linux/usb/typec.h>
+
+/* Register offsets */
+#define TPS_REG_CMD1			0x08
+#define TPS_REG_DATA1			0x09
+#define TPS_REG_INT_EVENT1		0x14
+#define TPS_REG_INT_EVENT2		0x15
+#define TPS_REG_INT_MASK1		0x16
+#define TPS_REG_INT_MASK2		0x17
+#define TPS_REG_INT_CLEAR1		0x18
+#define TPS_REG_INT_CLEAR2		0x19
+#define TPS_REG_STATUS			0x1a
+#define TPS_REG_SYSTEM_CONF		0x28
+#define TPS_REG_CTRL_CONF		0x29
+#define TPS_REG_POWER_STATUS		0x3f
+#define TPS_REG_RX_IDENTITY_SOP		0x48
+
+/* TPS_REG_INT_* bits */
+#define TPS_REG_INT_PLUG_EVENT		BIT(3)
+
+/* TPS_REG_STATUS bits */
+#define TPS_STATUS_PLUG_PRESENT		BIT(0)
+#define TPS_STATUS_ORIENTATION		BIT(4)
+#define TPS_STATUS_PORTROLE(s)		(!!((s) & BIT(5)))
+#define TPS_STATUS_DATAROLE(s)		(!!((s) & BIT(6)))
+#define TPS_STATUS_VCONN(s)		(!!((s) & BIT(7)))
+
+/* TPS_REG_SYSTEM_CONF bits */
+#define TPS_SYSCONF_PORTINFO(c)		((c) & 3)
+
+enum {
+	TPS_PORTINFO_SINK,
+	TPS_PORTINFO_SINK_ACCESSORY,
+	TPS_PORTINFO_DRP_UFP,
+	TPS_PORTINFO_DRP_UFP_DRD,
+	TPS_PORTINFO_DRP_DFP,
+	TPS_PORTINFO_DRP_DFP_DRD,
+	TPS_PORTINFO_SOURCE,
+};
+
+/* TPS_REG_POWER_STATUS bits */
+#define TPS_POWER_STATUS_SOURCESINK	BIT(1)
+#define TPS_POWER_STATUS_PWROPMODE(p)	(((p) & GENMASK(3, 2)) >> 2)
+
+/* TPS_REG_RX_IDENTITY_SOP */
+struct tps6598x_rx_identity_reg {
+	u8 status;
+	struct usb_pd_identity identity;
+	u32 vdo[3];
+} __packed;
+
+/* Standard Task return codes */
+#define TPS_TASK_TIMEOUT		1
+#define TPS_TASK_REJECTED		3
+
+/* Unrecognized commands will be replaced with "!CMD" */
+#define INVALID_CMD(_cmd_)		(_cmd_ == 0x444d4321)
+
+struct tps6598x {
+	struct device *dev;
+	struct regmap *regmap;
+	struct mutex lock; /* device lock */
+
+	struct typec_port *port;
+	struct typec_partner *partner;
+	struct usb_pd_identity partner_identity;
+	struct typec_capability typec_cap;
+};
+
+static inline int tps6598x_read16(struct tps6598x *tps, u8 reg, u16 *val)
+{
+	return regmap_raw_read(tps->regmap, reg, val, sizeof(u16));
+}
+
+static inline int tps6598x_read32(struct tps6598x *tps, u8 reg, u32 *val)
+{
+	return regmap_raw_read(tps->regmap, reg, val, sizeof(u32));
+}
+
+static inline int tps6598x_read64(struct tps6598x *tps, u8 reg, u64 *val)
+{
+	return regmap_raw_read(tps->regmap, reg, val, sizeof(u64));
+}
+
+static inline int tps6598x_write16(struct tps6598x *tps, u8 reg, u16 val)
+{
+	return regmap_raw_write(tps->regmap, reg, &val, sizeof(u16));
+}
+
+static inline int tps6598x_write32(struct tps6598x *tps, u8 reg, u32 val)
+{
+	return regmap_raw_write(tps->regmap, reg, &val, sizeof(u32));
+}
+
+static inline int tps6598x_write64(struct tps6598x *tps, u8 reg, u64 val)
+{
+	return regmap_raw_write(tps->regmap, reg, &val, sizeof(u64));
+}
+
+static inline int
+tps6598x_write_4cc(struct tps6598x *tps, u8 reg, const char *val)
+{
+	return regmap_raw_write(tps->regmap, reg, &val, sizeof(u32));
+}
+
+static int tps6598x_read_partner_identity(struct tps6598x *tps)
+{
+	struct tps6598x_rx_identity_reg id;
+	int ret;
+
+	ret = regmap_raw_read(tps->regmap, TPS_REG_RX_IDENTITY_SOP,
+			      &id, sizeof(id));
+	if (ret)
+		return ret;
+
+	tps->partner_identity = id.identity;
+
+	return 0;
+}
+
+static int tps6598x_connect(struct tps6598x *tps, u32 status)
+{
+	struct typec_partner_desc desc;
+	enum typec_pwr_opmode mode;
+	u16 pwr_status;
+	int ret;
+
+	if (tps->partner)
+		return 0;
+
+	ret = tps6598x_read16(tps, TPS_REG_POWER_STATUS, &pwr_status);
+	if (ret < 0)
+		return ret;
+
+	mode = TPS_POWER_STATUS_PWROPMODE(pwr_status);
+
+	desc.usb_pd = mode == TYPEC_PWR_MODE_PD;
+	desc.accessory = TYPEC_ACCESSORY_NONE; /* XXX: handle accessories */
+	desc.identity = NULL;
+
+	if (desc.usb_pd) {
+		ret = tps6598x_read_partner_identity(tps);
+		if (ret)
+			return ret;
+		desc.identity = &tps->partner_identity;
+	}
+
+	tps->partner = typec_register_partner(tps->port, &desc);
+	if (!tps->partner)
+		return -ENODEV;
+
+	typec_set_pwr_opmode(tps->port, mode);
+	typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status));
+	typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status));
+	typec_set_data_role(tps->port, TPS_STATUS_DATAROLE(status));
+
+	if (desc.identity)
+		typec_partner_set_identity(tps->partner);
+
+	return 0;
+}
+
+static void tps6598x_disconnect(struct tps6598x *tps, u32 status)
+{
+	typec_unregister_partner(tps->partner);
+	tps->partner = NULL;
+	typec_set_pwr_opmode(tps->port, TYPEC_PWR_MODE_USB);
+	typec_set_pwr_role(tps->port, TPS_STATUS_PORTROLE(status));
+	typec_set_vconn_role(tps->port, TPS_STATUS_VCONN(status));
+	typec_set_data_role(tps->port, TPS_STATUS_DATAROLE(status));
+}
+
+static int tps6598x_exec_cmd(struct tps6598x *tps, const char *cmd,
+			     size_t in_len, u8 *in_data,
+			     size_t out_len, u8 *out_data)
+{
+	unsigned long timeout;
+	u32 val;
+	int ret;
+
+	ret = tps6598x_read32(tps, TPS_REG_CMD1, &val);
+	if (ret)
+		return ret;
+	if (val && !INVALID_CMD(val))
+		return -EBUSY;
+
+	if (in_len) {
+		ret = regmap_raw_write(tps->regmap, TPS_REG_DATA1,
+				       in_data, in_len);
+		if (ret)
+			return ret;
+	}
+
+	ret = tps6598x_write_4cc(tps, TPS_REG_CMD1, cmd);
+	if (ret < 0)
+		return ret;
+
+	/* XXX: Using 1s for now, but it may not be enough for every command. */
+	timeout = jiffies + msecs_to_jiffies(1000);
+
+	do {
+		ret = tps6598x_read32(tps, TPS_REG_CMD1, &val);
+		if (ret)
+			return ret;
+		if (INVALID_CMD(val))
+			return -EINVAL;
+
+		if (time_is_before_jiffies(timeout))
+			return -ETIMEDOUT;
+	} while (val);
+
+	if (out_len) {
+		ret = regmap_raw_read(tps->regmap, TPS_REG_DATA1,
+				      out_data, out_len);
+		if (ret)
+			return ret;
+		val = out_data[0];
+	} else {
+		ret = regmap_read(tps->regmap, TPS_REG_DATA1, &val);
+		if (ret)
+			return ret;
+	}
+
+	switch (val) {
+	case TPS_TASK_TIMEOUT:
+		return -ETIMEDOUT;
+	case TPS_TASK_REJECTED:
+		return -EPERM;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int
+tps6598x_dr_set(const struct typec_capability *cap, enum typec_data_role role)
+{
+	struct tps6598x *tps = container_of(cap, struct tps6598x, typec_cap);
+	const char *cmd = (role == TYPEC_DEVICE) ? "SWUF" : "SWDF";
+	u32 status;
+	int ret;
+
+	mutex_lock(&tps->lock);
+
+	ret = tps6598x_exec_cmd(tps, cmd, 0, NULL, 0, NULL);
+	if (ret)
+		goto out_unlock;
+
+	ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
+	if (ret)
+		goto out_unlock;
+
+	if (role != TPS_STATUS_DATAROLE(status)) {
+		ret = -EPROTO;
+		goto out_unlock;
+	}
+
+	typec_set_data_role(tps->port, role);
+
+out_unlock:
+	mutex_unlock(&tps->lock);
+
+	return ret;
+}
+
+static int
+tps6598x_pr_set(const struct typec_capability *cap, enum typec_role role)
+{
+	struct tps6598x *tps = container_of(cap, struct tps6598x, typec_cap);
+	const char *cmd = (role == TYPEC_SINK) ? "SWSk" : "SWSr";
+	u32 status;
+	int ret;
+
+	mutex_lock(&tps->lock);
+
+	ret = tps6598x_exec_cmd(tps, cmd, 0, NULL, 0, NULL);
+	if (ret)
+		goto out_unlock;
+
+	ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
+	if (ret)
+		goto out_unlock;
+
+	if (role != TPS_STATUS_PORTROLE(status)) {
+		ret = -EPROTO;
+		goto out_unlock;
+	}
+
+	typec_set_pwr_role(tps->port, role);
+
+out_unlock:
+	mutex_unlock(&tps->lock);
+
+	return ret;
+}
+
+static irqreturn_t tps6598x_interrupt(int irq, void *data)
+{
+	struct tps6598x *tps = data;
+	u64 event1;
+	u64 event2;
+	u32 status;
+	int ret;
+
+	mutex_lock(&tps->lock);
+
+	ret = tps6598x_read64(tps, TPS_REG_INT_EVENT1, &event1);
+	ret |= tps6598x_read64(tps, TPS_REG_INT_EVENT2, &event2);
+	if (ret) {
+		dev_err(tps->dev, "%s: failed to read events\n", __func__);
+		goto err_unlock;
+	}
+
+	ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
+	if (ret) {
+		dev_err(tps->dev, "%s: failed to read status\n", __func__);
+		goto err_clear_ints;
+	}
+
+	/* Handle plug insert or removal */
+	if ((event1 | event2) & TPS_REG_INT_PLUG_EVENT) {
+		if (status & TPS_STATUS_PLUG_PRESENT) {
+			ret = tps6598x_connect(tps, status);
+			if (ret)
+				dev_err(tps->dev,
+					"failed to register partner\n");
+		} else {
+			tps6598x_disconnect(tps, status);
+		}
+	}
+
+err_clear_ints:
+	tps6598x_write64(tps, TPS_REG_INT_CLEAR1, event1);
+	tps6598x_write64(tps, TPS_REG_INT_CLEAR2, event2);
+
+err_unlock:
+	mutex_unlock(&tps->lock);
+
+	return IRQ_HANDLED;
+}
+
+static const struct regmap_config tps6598x_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = 0x7F,
+};
+
+static int tps6598x_probe(struct i2c_client *client)
+{
+	struct tps6598x *tps;
+	u32 status;
+	u32 conf;
+	u32 vid;
+	int ret;
+
+	tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+	if (!tps)
+		return -ENOMEM;
+
+	mutex_init(&tps->lock);
+	tps->dev = &client->dev;
+
+	tps->regmap = devm_regmap_init_i2c(client, &tps6598x_regmap_config);
+	if (IS_ERR(tps->regmap))
+		return PTR_ERR(tps->regmap);
+
+	ret = tps6598x_read32(tps, 0, &vid);
+	if (ret < 0)
+		return ret;
+	if (!vid)
+		return -ENODEV;
+
+	ret = tps6598x_read32(tps, TPS_REG_STATUS, &status);
+	if (ret < 0)
+		return ret;
+
+	ret = tps6598x_read32(tps, TPS_REG_SYSTEM_CONF, &conf);
+	if (ret < 0)
+		return ret;
+
+	switch (TPS_SYSCONF_PORTINFO(conf)) {
+	case TPS_PORTINFO_SINK_ACCESSORY:
+	case TPS_PORTINFO_SINK:
+		tps->typec_cap.type = TYPEC_PORT_UFP;
+		break;
+	case TPS_PORTINFO_DRP_UFP_DRD:
+	case TPS_PORTINFO_DRP_DFP_DRD:
+		tps->typec_cap.dr_set = tps6598x_dr_set;
+		/* fall through */
+	case TPS_PORTINFO_DRP_UFP:
+	case TPS_PORTINFO_DRP_DFP:
+		tps->typec_cap.pr_set = tps6598x_pr_set;
+		tps->typec_cap.type = TYPEC_PORT_DRP;
+		break;
+	case TPS_PORTINFO_SOURCE:
+		tps->typec_cap.type = TYPEC_PORT_DFP;
+		break;
+	default:
+		return -ENODEV;
+	}
+
+	tps->typec_cap.revision = USB_TYPEC_REV_1_2;
+	tps->typec_cap.pd_revision = 0x200;
+	tps->typec_cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
+
+	tps->port = typec_register_port(&client->dev, &tps->typec_cap);
+	if (!tps->port)
+		return -ENODEV;
+
+	if (status & TPS_STATUS_PLUG_PRESENT) {
+		ret = tps6598x_connect(tps, status);
+		if (ret)
+			dev_err(&client->dev, "failed to register partner\n");
+	}
+
+	ret = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+					tps6598x_interrupt,
+					IRQF_SHARED | IRQF_ONESHOT,
+					dev_name(&client->dev), tps);
+	if (ret) {
+		tps6598x_disconnect(tps, 0);
+		typec_unregister_port(tps->port);
+		return ret;
+	}
+
+	i2c_set_clientdata(client, tps);
+
+	return 0;
+}
+
+static int tps6598x_remove(struct i2c_client *client)
+{
+	struct tps6598x *tps = i2c_get_clientdata(client);
+
+	tps6598x_disconnect(tps, 0);
+	typec_unregister_port(tps->port);
+
+	return 0;
+}
+
+static const struct acpi_device_id tps6598x_acpi_match[] = {
+	{ "INT3515", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, tps6598x_acpi_match);
+
+static struct i2c_driver tps6598x_i2c_driver = {
+	.driver = {
+		.name = "tps6598x",
+		.acpi_match_table = tps6598x_acpi_match,
+	},
+	.probe_new = tps6598x_probe,
+	.remove = tps6598x_remove,
+};
+module_i2c_driver(tps6598x_i2c_driver);
+
+MODULE_AUTHOR("Heikki Krogerus <heikki.krogerus@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("TI TPS6598x USB Power Delivery Controller Driver");
diff --git a/drivers/usb/typec/typec.c b/drivers/usb/typec/typec.c
index 24e355ba109d..735726ced602 100644
--- a/drivers/usb/typec/typec.c
+++ b/drivers/usb/typec/typec.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Type-C Connector Class
  *
  * Copyright (C) 2017, Intel Corporation
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/typec/typec_wcove.c b/drivers/usb/typec/typec_wcove.c
index e9c4e784a9cb..a8d479eb221a 100644
--- a/drivers/usb/typec/typec_wcove.c
+++ b/drivers/usb/typec/typec_wcove.c
@@ -1,24 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * typec_wcove.c - WhiskeyCove PMIC USB Type-C PHY driver
  *
  * Copyright (C) 2017 Intel Corporation
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/acpi.h>
 #include <linux/module.h>
+#include <linux/usb/tcpm.h>
 #include <linux/interrupt.h>
-#include <linux/usb/typec.h>
 #include <linux/platform_device.h>
 #include <linux/mfd/intel_soc_pmic.h>
 
 /* Register offsets */
 #define WCOVE_CHGRIRQ0		0x4e09
-#define WCOVE_PHYCTRL		0x5e07
 
 #define USBC_CONTROL1		0x7001
 #define USBC_CONTROL2		0x7002
@@ -28,22 +24,57 @@
 #define USBC_STATUS1		0x7007
 #define USBC_STATUS2		0x7008
 #define USBC_STATUS3		0x7009
+#define USBC_CC1		0x700a
+#define USBC_CC2		0x700b
+#define USBC_CC1_STATUS		0x700c
+#define USBC_CC2_STATUS		0x700d
 #define USBC_IRQ1		0x7015
 #define USBC_IRQ2		0x7016
 #define USBC_IRQMASK1		0x7017
 #define USBC_IRQMASK2		0x7018
+#define USBC_PDCFG2		0x701a
+#define USBC_PDCFG3		0x701b
+#define USBC_PDSTATUS		0x701c
+#define USBC_RXSTATUS		0x701d
+#define USBC_RXINFO		0x701e
+#define USBC_TXCMD		0x701f
+#define USBC_TXINFO		0x7020
+#define USBC_RX_DATA		0x7028
+#define USBC_TX_DATA		0x7047
 
 /* Register bits */
 
-#define USBC_CONTROL1_MODE_DRP(r)	(((r) & ~0x7) | 4)
+#define USBC_CONTROL1_MODE_MASK		0x3
+#define   USBC_CONTROL1_MODE_SNK	0
+#define   USBC_CONTROL1_MODE_SNKACC	1
+#define   USBC_CONTROL1_MODE_SRC	2
+#define   USBC_CONTROL1_MODE_SRCACC	3
+#define   USBC_CONTROL1_MODE_DRP	4
+#define   USBC_CONTROL1_MODE_DRPACC	5
+#define   USBC_CONTROL1_MODE_TEST	7
+#define USBC_CONTROL1_CURSRC_MASK	0xc
+#define   USBC_CONTROL1_CURSRC_UA_0	(0 << 3)
+#define   USBC_CONTROL1_CURSRC_UA_80	(1 << 3)
+#define   USBC_CONTROL1_CURSRC_UA_180	(2 << 3)
+#define   USBC_CONTROL1_CURSRC_UA_330	(3 << 3)
+#define USBC_CONTROL1_DRPTOGGLE_RANDOM	0xe0
 
 #define USBC_CONTROL2_UNATT_SNK		BIT(0)
 #define USBC_CONTROL2_UNATT_SRC		BIT(1)
 #define USBC_CONTROL2_DIS_ST		BIT(2)
 
+#define USBC_CONTROL3_DET_DIS		BIT(0)
 #define USBC_CONTROL3_PD_DIS		BIT(1)
+#define USBC_CONTROL3_RESETPHY		BIT(2)
 
+#define USBC_CC_CTRL_PU_EN		BIT(0)
 #define USBC_CC_CTRL_VCONN_EN		BIT(1)
+#define USBC_CC_CTRL_TX_EN		BIT(2)
+#define USBC_CC_CTRL_PD_EN		BIT(3)
+#define USBC_CC_CTRL_CDET_EN		BIT(4)
+#define USBC_CC_CTRL_RDET_EN		BIT(5)
+#define USBC_CC_CTRL_ADC_EN		BIT(6)
+#define USBC_CC_CTRL_VBUSOK		BIT(7)
 
 #define USBC_STATUS1_DET_ONGOING	BIT(6)
 #define USBC_STATUS1_RSLT(r)		((r) & 0xf)
@@ -61,6 +92,15 @@
 
 #define USBC_STATUS2_VBUS_REQ		BIT(5)
 
+#define UCSC_CC_STATUS_SNK_RP		BIT(0)
+#define UCSC_CC_STATUS_PWRDEFSNK	BIT(1)
+#define UCSC_CC_STATUS_PWR_1P5A_SNK	BIT(2)
+#define UCSC_CC_STATUS_PWR_3A_SNK	BIT(3)
+#define UCSC_CC_STATUS_SRC_RP		BIT(4)
+#define UCSC_CC_STATUS_RX(r)		(((r) >> 5) & 0x3)
+#define   USBC_CC_STATUS_RD		1
+#define   USBC_CC_STATUS_RA		2
+
 #define USBC_IRQ1_ADCDONE1		BIT(2)
 #define USBC_IRQ1_OVERTEMP		BIT(1)
 #define USBC_IRQ1_SHORT			BIT(0)
@@ -79,15 +119,44 @@
 				 USBC_IRQ2_RX_HR | USBC_IRQ2_RX_CR | \
 				 USBC_IRQ2_TX_SUCCESS | USBC_IRQ2_TX_FAIL)
 
+#define USBC_PDCFG2_SOP			BIT(0)
+#define USBC_PDCFG2_SOP_P		BIT(1)
+#define USBC_PDCFG2_SOP_PP		BIT(2)
+#define USBC_PDCFG2_SOP_P_DEBUG		BIT(3)
+#define USBC_PDCFG2_SOP_PP_DEBUG	BIT(4)
+
+#define USBC_PDCFG3_DATAROLE_SHIFT	1
+#define USBC_PDCFG3_SOP_SHIFT		2
+
+#define USBC_RXSTATUS_RXCLEAR		BIT(0)
+#define USBC_RXSTATUS_RXDATA		BIT(7)
+
+#define USBC_RXINFO_RXBYTES(i)		(((i) >> 3) & 0x1f)
+
+#define USBC_TXCMD_BUF_RDY		BIT(0)
+#define USBC_TXCMD_START		BIT(1)
+#define USBC_TXCMD_NOP			(0 << 5)
+#define USBC_TXCMD_MSG			(1 << 5)
+#define USBC_TXCMD_CR			(2 << 5)
+#define USBC_TXCMD_HR			(3 << 5)
+#define USBC_TXCMD_BIST			(4 << 5)
+
+#define USBC_TXINFO_RETRIES(d)		(d << 3)
+
 struct wcove_typec {
 	struct mutex lock; /* device lock */
 	struct device *dev;
 	struct regmap *regmap;
-	struct typec_port *port;
-	struct typec_capability cap;
-	struct typec_partner *partner;
+	guid_t guid;
+
+	bool vbus;
+
+	struct tcpc_dev tcpc;
+	struct tcpm_port *tcpm;
 };
 
+#define tcpc_to_wcove(_tcpc_) container_of(_tcpc_, struct wcove_typec, tcpc)
+
 enum wcove_typec_func {
 	WCOVE_FUNC_DRIVE_VBUS = 1,
 	WCOVE_FUNC_ORIENTATION,
@@ -105,8 +174,7 @@ enum wcove_typec_role {
 	WCOVE_ROLE_DEVICE,
 };
 
-static guid_t guid = GUID_INIT(0x482383f0, 0x2876, 0x4e49,
-			       0x86, 0x85, 0xdb, 0x66, 0x21, 0x1a, 0xf0, 0x37);
+#define WCOVE_DSM_UUID		"482383f0-2876-4e49-8685-db66211af037"
 
 static int wcove_typec_func(struct wcove_typec *wcove,
 			    enum wcove_typec_func func, int param)
@@ -118,7 +186,7 @@ static int wcove_typec_func(struct wcove_typec *wcove,
 	tmp.type = ACPI_TYPE_INTEGER;
 	tmp.integer.value = param;
 
-	obj = acpi_evaluate_dsm(ACPI_HANDLE(wcove->dev), &guid, 1, func,
+	obj = acpi_evaluate_dsm(ACPI_HANDLE(wcove->dev), &wcove->guid, 1, func,
 				&argv4);
 	if (!obj) {
 		dev_err(wcove->dev, "%s: failed to evaluate _DSM\n", __func__);
@@ -129,158 +197,349 @@ static int wcove_typec_func(struct wcove_typec *wcove,
 	return 0;
 }
 
-static irqreturn_t wcove_typec_irq(int irq, void *data)
+static int wcove_init(struct tcpc_dev *tcpc)
 {
-	enum typec_role role = TYPEC_SINK;
-	struct typec_partner_desc partner;
-	struct wcove_typec *wcove = data;
-	unsigned int cc1_ctrl;
-	unsigned int cc2_ctrl;
-	unsigned int cc_irq1;
-	unsigned int cc_irq2;
-	unsigned int status1;
-	unsigned int status2;
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
 	int ret;
 
-	mutex_lock(&wcove->lock);
-
-	ret = regmap_read(wcove->regmap, USBC_IRQ1, &cc_irq1);
+	/* Unmask everything */
+	ret = regmap_write(wcove->regmap, USBC_IRQMASK1, 0);
 	if (ret)
-		goto err;
+		return ret;
 
-	ret = regmap_read(wcove->regmap, USBC_IRQ2, &cc_irq2);
-	if (ret)
-		goto err;
+	return regmap_write(wcove->regmap, USBC_IRQMASK2, 0);
+}
 
-	ret = regmap_read(wcove->regmap, USBC_STATUS1, &status1);
-	if (ret)
-		goto err;
+static int wcove_get_vbus(struct tcpc_dev *tcpc)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+	unsigned int cc1ctrl;
+	int ret;
 
-	ret = regmap_read(wcove->regmap, USBC_STATUS2, &status2);
+	ret = regmap_read(wcove->regmap, USBC_CC1_CTRL, &cc1ctrl);
 	if (ret)
-		goto err;
+		return ret;
 
-	ret = regmap_read(wcove->regmap, USBC_CC1_CTRL, &cc1_ctrl);
-	if (ret)
-		goto err;
+	wcove->vbus = !!(cc1ctrl & USBC_CC_CTRL_VBUSOK);
 
-	ret = regmap_read(wcove->regmap, USBC_CC2_CTRL, &cc2_ctrl);
-	if (ret)
-		goto err;
+	return wcove->vbus;
+}
 
-	if (cc_irq1) {
-		if (cc_irq1 & USBC_IRQ1_OVERTEMP)
-			dev_err(wcove->dev, "VCONN Switch Over Temperature!\n");
-		if (cc_irq1 & USBC_IRQ1_SHORT)
-			dev_err(wcove->dev, "VCONN Switch Short Circuit!\n");
-		ret = regmap_write(wcove->regmap, USBC_IRQ1, cc_irq1);
-		if (ret)
-			goto err;
-	}
+static int wcove_set_vbus(struct tcpc_dev *tcpc, bool on, bool sink)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
 
-	if (cc_irq2) {
-		ret = regmap_write(wcove->regmap, USBC_IRQ2, cc_irq2);
-		if (ret)
-			goto err;
-		/*
-		 * Ignoring any PD communication interrupts until the PD support
-		 * is available
-		 */
-		if (cc_irq2 & ~USBC_IRQ2_CC_CHANGE) {
-			dev_WARN(wcove->dev, "USB PD handling missing\n");
-			goto err;
+	return wcove_typec_func(wcove, WCOVE_FUNC_DRIVE_VBUS, on);
+}
+
+static int wcove_set_vconn(struct tcpc_dev *tcpc, bool on)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+
+	return wcove_typec_func(wcove, WCOVE_FUNC_DRIVE_VCONN, on);
+}
+
+static enum typec_cc_status wcove_to_typec_cc(unsigned int cc)
+{
+	if (cc & UCSC_CC_STATUS_SNK_RP) {
+		if (cc & UCSC_CC_STATUS_PWRDEFSNK)
+			return TYPEC_CC_RP_DEF;
+		else if (cc & UCSC_CC_STATUS_PWR_1P5A_SNK)
+			return TYPEC_CC_RP_1_5;
+		else if (cc & UCSC_CC_STATUS_PWR_3A_SNK)
+			return TYPEC_CC_RP_3_0;
+	} else {
+		switch (UCSC_CC_STATUS_RX(cc)) {
+		case USBC_CC_STATUS_RD:
+			return TYPEC_CC_RD;
+		case USBC_CC_STATUS_RA:
+			return TYPEC_CC_RA;
+		default:
+			break;
 		}
 	}
+	return TYPEC_CC_OPEN;
+}
 
-	if (status1 & USBC_STATUS1_DET_ONGOING)
-		goto out;
+static int wcove_get_cc(struct tcpc_dev *tcpc, enum typec_cc_status *cc1,
+			enum typec_cc_status *cc2)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+	unsigned int cc1_status;
+	unsigned int cc2_status;
+	int ret;
 
-	if (USBC_STATUS1_RSLT(status1) == USBC_RSLT_NOTHING) {
-		if (wcove->partner) {
-			typec_unregister_partner(wcove->partner);
-			wcove->partner = NULL;
-		}
+	ret = regmap_read(wcove->regmap, USBC_CC1_STATUS, &cc1_status);
+	if (ret)
+		return ret;
 
-		wcove_typec_func(wcove, WCOVE_FUNC_ORIENTATION,
-				 WCOVE_ORIENTATION_NORMAL);
+	ret = regmap_read(wcove->regmap, USBC_CC2_STATUS, &cc2_status);
+	if (ret)
+		return ret;
 
-		/* This makes sure the device controller is disconnected */
-		wcove_typec_func(wcove, WCOVE_FUNC_ROLE, WCOVE_ROLE_HOST);
+	*cc1 = wcove_to_typec_cc(cc1_status);
+	*cc2 = wcove_to_typec_cc(cc2_status);
 
-		/* Port to default role */
-		typec_set_data_role(wcove->port, TYPEC_DEVICE);
-		typec_set_pwr_role(wcove->port, TYPEC_SINK);
-		typec_set_pwr_opmode(wcove->port, TYPEC_PWR_MODE_USB);
+	return 0;
+}
 
-		goto out;
-	}
+static int wcove_set_cc(struct tcpc_dev *tcpc, enum typec_cc_status cc)
+{
+	/* XXX: Relying on the HW FSM to configure things correctly for now */
+	return 0;
+}
 
-	if (wcove->partner)
-		goto out;
+static int wcove_set_polarity(struct tcpc_dev *tcpc, enum typec_cc_polarity pol)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
 
-	switch (USBC_STATUS1_ORIENT(status1)) {
-	case USBC_ORIENT_NORMAL:
-		wcove_typec_func(wcove, WCOVE_FUNC_ORIENTATION,
-				 WCOVE_ORIENTATION_NORMAL);
-		break;
-	case USBC_ORIENT_REVERSE:
-		wcove_typec_func(wcove, WCOVE_FUNC_ORIENTATION,
-				 WCOVE_ORIENTATION_REVERSE);
-	default:
-		break;
+	return wcove_typec_func(wcove, WCOVE_FUNC_ORIENTATION, pol);
+}
+
+static int wcove_set_current_limit(struct tcpc_dev *tcpc, u32 max_ma, u32 mv)
+{
+	return 0;
+}
+
+static int wcove_set_roles(struct tcpc_dev *tcpc, bool attached,
+			   enum typec_role role, enum typec_data_role data)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+	unsigned int val;
+	int ret;
+
+	ret = wcove_typec_func(wcove, WCOVE_FUNC_ROLE, data == TYPEC_HOST ?
+			       WCOVE_ROLE_HOST : WCOVE_ROLE_DEVICE);
+	if (ret)
+		return ret;
+
+	val = role;
+	val |= data << USBC_PDCFG3_DATAROLE_SHIFT;
+	val |= PD_REV20 << USBC_PDCFG3_SOP_SHIFT;
+
+	return regmap_write(wcove->regmap, USBC_PDCFG3, val);
+}
+
+static int wcove_set_pd_rx(struct tcpc_dev *tcpc, bool on)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+
+	return regmap_write(wcove->regmap, USBC_PDCFG2,
+			    on ? USBC_PDCFG2_SOP : 0);
+}
+
+static int wcove_pd_transmit(struct tcpc_dev *tcpc,
+			     enum tcpm_transmit_type type,
+			     const struct pd_message *msg)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+	unsigned int info = 0;
+	unsigned int cmd;
+	int ret;
+
+	ret = regmap_read(wcove->regmap, USBC_TXCMD, &cmd);
+	if (ret)
+		return ret;
+
+	if (!(cmd & USBC_TXCMD_BUF_RDY)) {
+		dev_warn(wcove->dev, "%s: Last transmission still ongoing!",
+			 __func__);
+		return -EBUSY;
 	}
 
-	memset(&partner, 0, sizeof(partner));
+	if (msg) {
+		const u8 *data = (void *)msg;
+		int i;
+
+		for (i = 0; i < pd_header_cnt(msg->header) * 4 + 2; i++) {
+			ret = regmap_write(wcove->regmap, USBC_TX_DATA + i,
+					   data[i]);
+			if (ret)
+				return ret;
+		}
+	}
 
-	switch (USBC_STATUS1_RSLT(status1)) {
-	case USBC_RSLT_SRC_DEFAULT:
-		typec_set_pwr_opmode(wcove->port, TYPEC_PWR_MODE_USB);
+	switch (type) {
+	case TCPC_TX_SOP:
+	case TCPC_TX_SOP_PRIME:
+	case TCPC_TX_SOP_PRIME_PRIME:
+	case TCPC_TX_SOP_DEBUG_PRIME:
+	case TCPC_TX_SOP_DEBUG_PRIME_PRIME:
+		info = type + 1;
+		cmd = USBC_TXCMD_MSG;
 		break;
-	case USBC_RSLT_SRC_1_5A:
-		typec_set_pwr_opmode(wcove->port, TYPEC_PWR_MODE_1_5A);
+	case TCPC_TX_HARD_RESET:
+		cmd = USBC_TXCMD_HR;
 		break;
-	case USBC_RSLT_SRC_3_0A:
-		typec_set_pwr_opmode(wcove->port, TYPEC_PWR_MODE_3_0A);
+	case TCPC_TX_CABLE_RESET:
+		cmd = USBC_TXCMD_CR;
 		break;
-	case USBC_RSLT_SNK:
-		role = TYPEC_SOURCE;
+	case TCPC_TX_BIST_MODE_2:
+		cmd = USBC_TXCMD_BIST;
 		break;
-	case USBC_RSLT_DEBUG_ACC:
-		partner.accessory = TYPEC_ACCESSORY_DEBUG;
+	default:
+		return -EINVAL;
+	}
+
+	/* NOTE Setting maximum number of retries (7) */
+	ret = regmap_write(wcove->regmap, USBC_TXINFO,
+			   info | USBC_TXINFO_RETRIES(7));
+	if (ret)
+		return ret;
+
+	return regmap_write(wcove->regmap, USBC_TXCMD, cmd | USBC_TXCMD_START);
+}
+
+static int wcove_start_drp_toggling(struct tcpc_dev *tcpc,
+				    enum typec_cc_status cc)
+{
+	struct wcove_typec *wcove = tcpc_to_wcove(tcpc);
+	unsigned int usbc_ctrl;
+
+	usbc_ctrl = USBC_CONTROL1_MODE_DRP | USBC_CONTROL1_DRPTOGGLE_RANDOM;
+
+	switch (cc) {
+	case TYPEC_CC_RP_1_5:
+		usbc_ctrl |= USBC_CONTROL1_CURSRC_UA_180;
 		break;
-	case USBC_RSLT_AUDIO_ACC:
-		partner.accessory = TYPEC_ACCESSORY_AUDIO;
+	case TYPEC_CC_RP_3_0:
+		usbc_ctrl |= USBC_CONTROL1_CURSRC_UA_330;
 		break;
 	default:
-		dev_WARN(wcove->dev, "%s Undefined result\n", __func__);
-		goto err;
+		usbc_ctrl |= USBC_CONTROL1_CURSRC_UA_80;
+		break;
 	}
 
-	if (role == TYPEC_SINK) {
-		wcove_typec_func(wcove, WCOVE_FUNC_ROLE, WCOVE_ROLE_DEVICE);
-		typec_set_data_role(wcove->port, TYPEC_DEVICE);
-		typec_set_pwr_role(wcove->port, TYPEC_SINK);
-	} else {
-		wcove_typec_func(wcove, WCOVE_FUNC_ROLE, WCOVE_ROLE_HOST);
-		typec_set_pwr_role(wcove->port, TYPEC_SOURCE);
-		typec_set_data_role(wcove->port, TYPEC_HOST);
+	return regmap_write(wcove->regmap, USBC_CONTROL1, usbc_ctrl);
+}
+
+static int wcove_read_rx_buffer(struct wcove_typec *wcove, void *msg)
+{
+	unsigned int info;
+	int ret;
+	int i;
+
+	ret = regmap_read(wcove->regmap, USBC_RXINFO, &info);
+	if (ret)
+		return ret;
+
+	/* FIXME: Check that USBC_RXINFO_RXBYTES(info) matches the header */
+
+	for (i = 0; i < USBC_RXINFO_RXBYTES(info); i++) {
+		ret = regmap_read(wcove->regmap, USBC_RX_DATA + i, msg + i);
+		if (ret)
+			return ret;
 	}
 
-	wcove->partner = typec_register_partner(wcove->port, &partner);
-	if (!wcove->partner)
-		dev_err(wcove->dev, "failed register partner\n");
-out:
-	/* If either CC pins is requesting VCONN, we turn it on */
-	if ((cc1_ctrl & USBC_CC_CTRL_VCONN_EN) ||
-	    (cc2_ctrl &	USBC_CC_CTRL_VCONN_EN))
-		wcove_typec_func(wcove, WCOVE_FUNC_DRIVE_VCONN, true);
-	else
+	return regmap_write(wcove->regmap, USBC_RXSTATUS,
+			    USBC_RXSTATUS_RXCLEAR);
+}
+
+static irqreturn_t wcove_typec_irq(int irq, void *data)
+{
+	struct wcove_typec *wcove = data;
+	unsigned int usbc_irq1 = 0;
+	unsigned int usbc_irq2 = 0;
+	unsigned int cc1ctrl;
+	int ret;
+
+	mutex_lock(&wcove->lock);
+
+	/* Read.. */
+	ret = regmap_read(wcove->regmap, USBC_IRQ1, &usbc_irq1);
+	if (ret)
+		goto err;
+
+	ret = regmap_read(wcove->regmap, USBC_IRQ2, &usbc_irq2);
+	if (ret)
+		goto err;
+
+	ret = regmap_read(wcove->regmap, USBC_CC1_CTRL, &cc1ctrl);
+	if (ret)
+		goto err;
+
+	if (!wcove->tcpm)
+		goto err;
+
+	/* ..check.. */
+	if (usbc_irq1 & USBC_IRQ1_OVERTEMP) {
+		dev_err(wcove->dev, "VCONN Switch Over Temperature!\n");
+		wcove_typec_func(wcove, WCOVE_FUNC_DRIVE_VCONN, false);
+		/* REVISIT: Report an error? */
+	}
+
+	if (usbc_irq1 & USBC_IRQ1_SHORT) {
+		dev_err(wcove->dev, "VCONN Switch Short Circuit!\n");
 		wcove_typec_func(wcove, WCOVE_FUNC_DRIVE_VCONN, false);
+		/* REVISIT: Report an error? */
+	}
+
+	if (wcove->vbus != !!(cc1ctrl & USBC_CC_CTRL_VBUSOK))
+		tcpm_vbus_change(wcove->tcpm);
+
+	/* REVISIT: See if tcpm code can be made to consider Type-C HW FSMs */
+	if (usbc_irq2 & USBC_IRQ2_CC_CHANGE)
+		tcpm_cc_change(wcove->tcpm);
+
+	if (usbc_irq2 & USBC_IRQ2_RX_PD) {
+		unsigned int status;
+
+		/*
+		 * FIXME: Need to check if TX is ongoing and report
+		 * TX_DIREGARDED if needed?
+		 */
+
+		ret = regmap_read(wcove->regmap, USBC_RXSTATUS, &status);
+		if (ret)
+			goto err;
+
+		/* Flush all buffers */
+		while (status & USBC_RXSTATUS_RXDATA) {
+			struct pd_message msg;
+
+			ret = wcove_read_rx_buffer(wcove, &msg);
+			if (ret) {
+				dev_err(wcove->dev, "%s: RX read failed\n",
+					__func__);
+				goto err;
+			}
+
+			tcpm_pd_receive(wcove->tcpm, &msg);
+
+			ret = regmap_read(wcove->regmap, USBC_RXSTATUS,
+					  &status);
+			if (ret)
+				goto err;
+		}
+	}
+
+	if (usbc_irq2 & USBC_IRQ2_RX_HR)
+		tcpm_pd_hard_reset(wcove->tcpm);
+
+	/* REVISIT: if (usbc_irq2 & USBC_IRQ2_RX_CR) */
+
+	if (usbc_irq2 & USBC_IRQ2_TX_SUCCESS)
+		tcpm_pd_transmit_complete(wcove->tcpm, TCPC_TX_SUCCESS);
+
+	if (usbc_irq2 & USBC_IRQ2_TX_FAIL)
+		tcpm_pd_transmit_complete(wcove->tcpm, TCPC_TX_FAILED);
 
-	/* Relying on the FSM to know when we need to drive VBUS. */
-	wcove_typec_func(wcove, WCOVE_FUNC_DRIVE_VBUS,
-			 !!(status2 & USBC_STATUS2_VBUS_REQ));
 err:
+	/* ..and clear. */
+	if (usbc_irq1) {
+		ret = regmap_write(wcove->regmap, USBC_IRQ1, usbc_irq1);
+		if (ret)
+			dev_WARN(wcove->dev, "%s failed to clear IRQ1\n",
+				 __func__);
+	}
+
+	if (usbc_irq2) {
+		ret = regmap_write(wcove->regmap, USBC_IRQ2, usbc_irq2);
+		if (ret)
+			dev_WARN(wcove->dev, "%s failed to clear IRQ2\n",
+				 __func__);
+	}
+
 	/* REVISIT: Clear WhiskeyCove CHGR Type-C interrupt */
 	regmap_write(wcove->regmap, WCOVE_CHGRIRQ0, BIT(5));
 
@@ -288,11 +547,41 @@ err:
 	return IRQ_HANDLED;
 }
 
+/*
+ * The following power levels should be safe to use with Joule board.
+ */
+static const u32 src_pdo[] = {
+	PDO_FIXED(5000, 1500, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |
+		  PDO_FIXED_USB_COMM),
+};
+
+static const u32 snk_pdo[] = {
+	PDO_FIXED(12000, 3000, PDO_FIXED_DUAL_ROLE | PDO_FIXED_DATA_SWAP |
+		  PDO_FIXED_USB_COMM),
+	PDO_BATT(4750, 12000, 15000),
+	PDO_VAR(4750, 12000, 3000),
+};
+
+static struct tcpc_config wcove_typec_config = {
+	.src_pdo = src_pdo,
+	.nr_src_pdo = ARRAY_SIZE(src_pdo),
+	.snk_pdo = snk_pdo,
+	.nr_snk_pdo = ARRAY_SIZE(snk_pdo),
+
+	.max_snk_mv = 12000,
+	.max_snk_ma = 3000,
+	.max_snk_mw = 36000,
+	.operating_snk_mw = 15000,
+
+	.type = TYPEC_PORT_DRP,
+	.default_role = TYPEC_SINK,
+};
+
 static int wcove_typec_probe(struct platform_device *pdev)
 {
 	struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);
 	struct wcove_typec *wcove;
-	unsigned int val;
+	int irq;
 	int ret;
 
 	wcove = devm_kzalloc(&pdev->dev, sizeof(*wcove), GFP_KERNEL);
@@ -303,43 +592,47 @@ static int wcove_typec_probe(struct platform_device *pdev)
 	wcove->dev = &pdev->dev;
 	wcove->regmap = pmic->regmap;
 
-	ret = regmap_irq_get_virq(pmic->irq_chip_data_chgr,
+	irq = regmap_irq_get_virq(pmic->irq_chip_data_chgr,
 				  platform_get_irq(pdev, 0));
-	if (ret < 0)
-		return ret;
+	if (irq < 0)
+		return irq;
 
-	ret = devm_request_threaded_irq(&pdev->dev, ret, NULL,
-					wcove_typec_irq, IRQF_ONESHOT,
-					"wcove_typec", wcove);
+	ret = guid_parse(WCOVE_DSM_UUID, &wcove->guid);
 	if (ret)
 		return ret;
 
-	if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), &guid, 0, 0x1f)) {
+	if (!acpi_check_dsm(ACPI_HANDLE(&pdev->dev), &wcove->guid, 0, 0x1f)) {
 		dev_err(&pdev->dev, "Missing _DSM functions\n");
 		return -ENODEV;
 	}
 
-	wcove->cap.type = TYPEC_PORT_DRP;
-	wcove->cap.revision = USB_TYPEC_REV_1_1;
-	wcove->cap.prefer_role = TYPEC_NO_PREFERRED_ROLE;
+	wcove->tcpc.init = wcove_init;
+	wcove->tcpc.get_vbus = wcove_get_vbus;
+	wcove->tcpc.set_vbus = wcove_set_vbus;
+	wcove->tcpc.set_cc = wcove_set_cc;
+	wcove->tcpc.get_cc = wcove_get_cc;
+	wcove->tcpc.set_polarity = wcove_set_polarity;
+	wcove->tcpc.set_vconn = wcove_set_vconn;
+	wcove->tcpc.set_current_limit = wcove_set_current_limit;
+	wcove->tcpc.start_drp_toggling = wcove_start_drp_toggling;
 
-	/* Make sure the PD PHY is disabled until USB PD is available */
-	regmap_read(wcove->regmap, USBC_CONTROL3, &val);
-	regmap_write(wcove->regmap, USBC_CONTROL3, val | USBC_CONTROL3_PD_DIS);
+	wcove->tcpc.set_pd_rx = wcove_set_pd_rx;
+	wcove->tcpc.set_roles = wcove_set_roles;
+	wcove->tcpc.pd_transmit = wcove_pd_transmit;
 
-	/* DRP mode without accessory support */
-	regmap_read(wcove->regmap, USBC_CONTROL1, &val);
-	regmap_write(wcove->regmap, USBC_CONTROL1, USBC_CONTROL1_MODE_DRP(val));
+	wcove->tcpc.config = &wcove_typec_config;
 
-	wcove->port = typec_register_port(&pdev->dev, &wcove->cap);
-	if (!wcove->port)
-		return -ENODEV;
+	wcove->tcpm = tcpm_register_port(wcove->dev, &wcove->tcpc);
+	if (IS_ERR(wcove->tcpm))
+		return PTR_ERR(wcove->tcpm);
 
-	/* Unmask everything */
-	regmap_read(wcove->regmap, USBC_IRQMASK1, &val);
-	regmap_write(wcove->regmap, USBC_IRQMASK1, val & ~USBC_IRQMASK1_ALL);
-	regmap_read(wcove->regmap, USBC_IRQMASK2, &val);
-	regmap_write(wcove->regmap, USBC_IRQMASK2, val & ~USBC_IRQMASK2_ALL);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wcove_typec_irq, IRQF_ONESHOT,
+					"wcove_typec", wcove);
+	if (ret) {
+		tcpm_unregister_port(wcove->tcpm);
+		return ret;
+	}
 
 	platform_set_drvdata(pdev, wcove);
 	return 0;
@@ -356,8 +649,8 @@ static int wcove_typec_remove(struct platform_device *pdev)
 	regmap_read(wcove->regmap, USBC_IRQMASK2, &val);
 	regmap_write(wcove->regmap, USBC_IRQMASK2, val | USBC_IRQMASK2_ALL);
 
-	typec_unregister_partner(wcove->partner);
-	typec_unregister_port(wcove->port);
+	tcpm_unregister_port(wcove->tcpm);
+
 	return 0;
 }
 
diff --git a/drivers/usb/typec/ucsi/Makefile b/drivers/usb/typec/ucsi/Makefile
index 8372fc22f9b3..b57891c1fd31 100644
--- a/drivers/usb/typec/ucsi/Makefile
+++ b/drivers/usb/typec/ucsi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS_trace.o			:= -I$(src)
 
 obj-$(CONFIG_TYPEC_UCSI)	+= typec_ucsi.o
diff --git a/drivers/usb/typec/ucsi/debug.h b/drivers/usb/typec/ucsi/debug.h
index e4d8fc763e6c..fdeff39df120 100644
--- a/drivers/usb/typec/ucsi/debug.h
+++ b/drivers/usb/typec/ucsi/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UCSI_DEBUG_H
 #define __UCSI_DEBUG_H
 
diff --git a/drivers/usb/typec/ucsi/trace.c b/drivers/usb/typec/ucsi/trace.c
index 006f65c72a34..d9a6ff6e673c 100644
--- a/drivers/usb/typec/ucsi/trace.c
+++ b/drivers/usb/typec/ucsi/trace.c
@@ -1,2 +1,3 @@
+// SPDX-License-Identifier: GPL-2.0
 #define CREATE_TRACE_POINTS
 #include "trace.h"
diff --git a/drivers/usb/typec/ucsi/trace.h b/drivers/usb/typec/ucsi/trace.h
index 98b404404834..d5092446ecc6 100644
--- a/drivers/usb/typec/ucsi/trace.h
+++ b/drivers/usb/typec/ucsi/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ucsi
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index 714c5bcedf2b..79046fe66426 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Type-C Connector System Software Interface driver
  *
  * Copyright (C) 2017, Intel Corporation
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/completion.h>
diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
index 8a88f45822e3..53b80f40a908 100644
--- a/drivers/usb/typec/ucsi/ucsi.h
+++ b/drivers/usb/typec/ucsi/ucsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __DRIVER_USB_TYPEC_UCSI_H
 #define __DRIVER_USB_TYPEC_UCSI_H
diff --git a/drivers/usb/typec/ucsi/ucsi_acpi.c b/drivers/usb/typec/ucsi/ucsi_acpi.c
index cabd47612b0a..44eb4e1ea817 100644
--- a/drivers/usb/typec/ucsi/ucsi_acpi.c
+++ b/drivers/usb/typec/ucsi/ucsi_acpi.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UCSI ACPI driver
  *
  * Copyright (C) 2017, Intel Corporation
  * Author: Heikki Krogerus <heikki.krogerus@linux.intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
  */
 
 #include <linux/platform_device.h>
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index bb0bd732e29a..26ca0ec01fd5 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -1,15 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Skeleton driver - 2.2
  *
  * Copyright (C) 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
  *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation, version 2.
- *
  * This driver is based on the 2.6.3 version of drivers/usb/usb-skeleton.c
  * but has been rewritten to be easier to read and use.
- *
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/usbip/Makefile b/drivers/usb/usbip/Makefile
index d843a9e68852..f4c8f3840262 100644
--- a/drivers/usb/usbip/Makefile
+++ b/drivers/usb/usbip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_USBIP_DEBUG) := -DDEBUG
 
 obj-$(CONFIG_USBIP_CORE) += usbip-core.o
diff --git a/drivers/usb/usbip/stub.h b/drivers/usb/usbip/stub.h
index 910f027773aa..14a72357800a 100644
--- a/drivers/usb/usbip/stub.h
+++ b/drivers/usb/usbip/stub.h
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #ifndef __USBIP_STUB_H
diff --git a/drivers/usb/usbip/stub_dev.c b/drivers/usb/usbip/stub_dev.c
index c653ce533430..a3df8ee82faf 100644
--- a/drivers/usb/usbip/stub_dev.c
+++ b/drivers/usb/usbip/stub_dev.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
index 7170404e8979..4f48b306713f 100644
--- a/drivers/usb/usbip/stub_main.c
+++ b/drivers/usb/usbip/stub_main.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/string.h>
diff --git a/drivers/usb/usbip/stub_rx.c b/drivers/usb/usbip/stub_rx.c
index 191b176ffedf..536e037f541f 100644
--- a/drivers/usb/usbip/stub_rx.c
+++ b/drivers/usb/usbip/stub_rx.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <asm/byteorder.h>
diff --git a/drivers/usb/usbip/stub_tx.c b/drivers/usb/usbip/stub_tx.c
index be50cef645d8..b18bce96c212 100644
--- a/drivers/usb/usbip/stub_tx.c
+++ b/drivers/usb/usbip/stub_tx.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/kthread.h>
diff --git a/drivers/usb/usbip/usbip_common.c b/drivers/usb/usbip/usbip_common.c
index 2281f3562870..f7978933b402 100644
--- a/drivers/usb/usbip/usbip_common.c
+++ b/drivers/usb/usbip/usbip_common.c
@@ -1,22 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Krzysztof Opasiak <k.opasiak@samsung.com>
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <asm/byteorder.h>
diff --git a/drivers/usb/usbip/usbip_common.h b/drivers/usb/usbip/usbip_common.h
index 3050fc99a417..e5de35c8c505 100644
--- a/drivers/usb/usbip/usbip_common.h
+++ b/drivers/usb/usbip/usbip_common.h
@@ -1,22 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Krzysztof Opasiak <k.opasiak@samsung.com>
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #ifndef __USBIP_COMMON_H
diff --git a/drivers/usb/usbip/usbip_event.c b/drivers/usb/usbip/usbip_event.c
index f1635662c299..5b4c0864ad92 100644
--- a/drivers/usb/usbip/usbip_event.c
+++ b/drivers/usb/usbip/usbip_event.c
@@ -1,21 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
  * Copyright (C) 2015 Nobuo Iwata
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/kthread.h>
diff --git a/drivers/usb/usbip/vhci.h b/drivers/usb/usbip/vhci.h
index 5cfb59e98e44..5659dce1526e 100644
--- a/drivers/usb/usbip/vhci.h
+++ b/drivers/usb/usbip/vhci.h
@@ -1,12 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
  * Copyright (C) 2015 Nobuo Iwata
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
  */
 
 #ifndef __USBIP_VHCI_H
diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
index 11b9a22799cc..713e94170963 100644
--- a/drivers/usb/usbip/vhci_hcd.c
+++ b/drivers/usb/usbip/vhci_hcd.c
@@ -1,21 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
  * Copyright (C) 2015-2016 Nobuo Iwata
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/init.h>
diff --git a/drivers/usb/usbip/vhci_rx.c b/drivers/usb/usbip/vhci_rx.c
index ef2f2d5ca6b2..90577e8b2282 100644
--- a/drivers/usb/usbip/vhci_rx.c
+++ b/drivers/usb/usbip/vhci_rx.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/kthread.h>
diff --git a/drivers/usb/usbip/vhci_sysfs.c b/drivers/usb/usbip/vhci_sysfs.c
index 1b9f60a22e0b..e78f7472cac4 100644
--- a/drivers/usb/usbip/vhci_sysfs.c
+++ b/drivers/usb/usbip/vhci_sysfs.c
@@ -1,21 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
  * Copyright (C) 2015-2016 Nobuo Iwata
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/kthread.h>
diff --git a/drivers/usb/usbip/vhci_tx.c b/drivers/usb/usbip/vhci_tx.c
index 3e7878fe2fd4..d625a2ff4b71 100644
--- a/drivers/usb/usbip/vhci_tx.c
+++ b/drivers/usb/usbip/vhci_tx.c
@@ -1,20 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2003-2008 Takahiro Hirofuchi
- *
- * This is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- * USA.
  */
 
 #include <linux/kthread.h>
diff --git a/drivers/usb/usbip/vudc.h b/drivers/usb/usbip/vudc.h
index 25e01b09c4c3..cf968192e59f 100644
--- a/drivers/usb/usbip/vudc.h
+++ b/drivers/usb/usbip/vudc.h
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
  *               Krzysztof Opasiak <k.opasiak@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #ifndef __USBIP_VUDC_H
@@ -104,7 +92,7 @@ struct vudc {
 
 	struct usbip_device ud;
 	struct transfer_timer tr_timer;
-	struct timeval start_time;
+	struct timespec64 start_time;
 
 	struct list_head urb_queue;
 
diff --git a/drivers/usb/usbip/vudc_dev.c b/drivers/usb/usbip/vudc_dev.c
index 968471b62cbc..1b9a4f87db59 100644
--- a/drivers/usb/usbip/vudc_dev.c
+++ b/drivers/usb/usbip/vudc_dev.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
  *               Krzysztof Opasiak <k.opasiak@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/device.h>
@@ -135,16 +123,15 @@ struct vep *vudc_find_endpoint(struct vudc *udc, u8 address)
 
 /* gadget ops */
 
-/* FIXME - this will probably misbehave when suspend/resume is added */
 static int vgadget_get_frame(struct usb_gadget *_gadget)
 {
-	struct timeval now;
+	struct timespec64 now;
 	struct vudc *udc = usb_gadget_to_vudc(_gadget);
 
-	do_gettimeofday(&now);
+	ktime_get_ts64(&now);
 	return ((now.tv_sec - udc->start_time.tv_sec) * 1000 +
-			(now.tv_usec - udc->start_time.tv_usec) / 1000)
-			% 0x7FF;
+		(now.tv_nsec - udc->start_time.tv_nsec) / NSEC_PER_MSEC)
+			& 0x7FF;
 }
 
 static int vgadget_set_selfpowered(struct usb_gadget *_gadget, int value)
diff --git a/drivers/usb/usbip/vudc_main.c b/drivers/usb/usbip/vudc_main.c
index 9e655714e389..3fc22037a82f 100644
--- a/drivers/usb/usbip/vudc_main.c
+++ b/drivers/usb/usbip/vudc_main.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
  *               Krzysztof Opasiak <k.opasiak@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/device.h>
diff --git a/drivers/usb/usbip/vudc_rx.c b/drivers/usb/usbip/vudc_rx.c
index e429b59f6f8a..df1e30989148 100644
--- a/drivers/usb/usbip/vudc_rx.c
+++ b/drivers/usb/usbip/vudc_rx.c
@@ -1,20 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <net/sock.h>
diff --git a/drivers/usb/usbip/vudc_sysfs.c b/drivers/usb/usbip/vudc_sysfs.c
index 0f98f2c7475f..1adc8af292ec 100644
--- a/drivers/usb/usbip/vudc_sysfs.c
+++ b/drivers/usb/usbip/vudc_sysfs.c
@@ -1,21 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
  *               Krzysztof Opasiak <k.opasiak@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/device.h>
@@ -161,7 +149,7 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
 		udc->ud.status = SDEV_ST_USED;
 		spin_unlock_irq(&udc->ud.lock);
 
-		do_gettimeofday(&udc->start_time);
+		ktime_get_ts64(&udc->start_time);
 		v_start_timer(udc);
 		udc->connected = 1;
 	} else {
diff --git a/drivers/usb/usbip/vudc_transfer.c b/drivers/usb/usbip/vudc_transfer.c
index 4cfd475ee865..c9db846ee4f6 100644
--- a/drivers/usb/usbip/vudc_transfer.c
+++ b/drivers/usb/usbip/vudc_transfer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
@@ -6,19 +7,6 @@
  * Based on dummy_hcd.c, which is:
  * Copyright (C) 2003 David Brownell
  * Copyright (C) 2003-2005 Alan Stern
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <linux/usb.h>
@@ -311,9 +299,9 @@ top:
 	return sent;
 }
 
-static void v_timer(unsigned long _vudc)
+static void v_timer(struct timer_list *t)
 {
-	struct vudc *udc = (struct vudc *) _vudc;
+	struct vudc *udc = from_timer(udc, t, tr_timer.timer);
 	struct transfer_timer *timer = &udc->tr_timer;
 	struct urbp *urb_p, *tmp;
 	unsigned long flags;
@@ -459,7 +447,7 @@ void v_init_timer(struct vudc *udc)
 {
 	struct transfer_timer *t = &udc->tr_timer;
 
-	setup_timer(&t->timer, v_timer, (unsigned long) udc);
+	timer_setup(&t->timer, v_timer, 0);
 	t->state = VUDC_TR_STOPPED;
 }
 
diff --git a/drivers/usb/usbip/vudc_tx.c b/drivers/usb/usbip/vudc_tx.c
index 234661782fa0..1440ae0919ec 100644
--- a/drivers/usb/usbip/vudc_tx.c
+++ b/drivers/usb/usbip/vudc_tx.c
@@ -1,20 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2015 Karol Kosik <karo9@interia.eu>
  * Copyright (C) 2015-2016 Samsung Electronics
  *               Igor Kotrasinski <i.kotrasinsk@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <net/sock.h>
diff --git a/drivers/usb/wusbcore/Makefile b/drivers/usb/wusbcore/Makefile
index b3bd313032b1..d604ccdd916f 100644
--- a/drivers/usb/wusbcore/Makefile
+++ b/drivers/usb/wusbcore/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_USB_WUSB_CBAF_DEBUG) := -DDEBUG
 
 obj-$(CONFIG_USB_WUSB)		+= wusbcore.o
diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c
index aa4e440e9975..222228c5c1e1 100644
--- a/drivers/usb/wusbcore/cbaf.c
+++ b/drivers/usb/wusbcore/cbaf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB - Cable Based Association
  *
@@ -6,21 +7,6 @@
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * WUSB devices have to be paired (associated in WUSB lingo) so
  * that they can connect to the system.
  *
diff --git a/drivers/usb/wusbcore/crypto.c b/drivers/usb/wusbcore/crypto.c
index 062c205f0046..4c00be2d1993 100644
--- a/drivers/usb/wusbcore/crypto.c
+++ b/drivers/usb/wusbcore/crypto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ultra Wide Band
  * AES-128 CCM Encryption
@@ -5,21 +6,6 @@
  * Copyright (C) 2007 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * We don't do any encryption here; we use the Linux Kernel's AES-128
  * crypto modules to construct keys and payload blocks in a way
  * defined by WUSB1.0[6]. Check the erratas, as typos are are patched
diff --git a/drivers/usb/wusbcore/dev-sysfs.c b/drivers/usb/wusbcore/dev-sysfs.c
index 78212f8180ce..85a1acf3a729 100644
--- a/drivers/usb/wusbcore/dev-sysfs.c
+++ b/drivers/usb/wusbcore/dev-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB devices
  * sysfs bindings
@@ -5,21 +6,6 @@
  * Copyright (C) 2007 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * Get them out of the way...
  */
 
diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index bf9551735938..fcb06aef2675 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8])
  * Device Connect handling
@@ -5,21 +6,6 @@
  * Copyright (C) 2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * FIXME: docs
  * FIXME: this file needs to be broken up, it's grown too big
  *
diff --git a/drivers/usb/wusbcore/mmc.c b/drivers/usb/wusbcore/mmc.c
index 3f485df96226..acce0d551eb2 100644
--- a/drivers/usb/wusbcore/mmc.c
+++ b/drivers/usb/wusbcore/mmc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8])
  * MMC (Microscheduled Management Command) handling
@@ -5,21 +6,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * WUIEs and MMC IEs...well, they are almost the same at the end. MMC
  * IEs are Wireless USB IEs that go into the MMC period...[what is
  * that? look in Design-overview.txt].
diff --git a/drivers/usb/wusbcore/pal.c b/drivers/usb/wusbcore/pal.c
index 090f27371a8f..30f569131471 100644
--- a/drivers/usb/wusbcore/pal.c
+++ b/drivers/usb/wusbcore/pal.c
@@ -1,20 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Host Controller
  * UWB Protocol Adaptation Layer (PAL) glue.
  *
  * Copyright (C) 2008 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include "wusbhc.h"
 
diff --git a/drivers/usb/wusbcore/reservation.c b/drivers/usb/wusbcore/reservation.c
index 7b1b2e2fb673..6dcfc6825f55 100644
--- a/drivers/usb/wusbcore/reservation.c
+++ b/drivers/usb/wusbcore/reservation.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB cluster reservation management
  *
  * Copyright (C) 2007 Cambridge Silicon Radio Ltd.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/kernel.h>
 #include <linux/uwb.h>
diff --git a/drivers/usb/wusbcore/rh.c b/drivers/usb/wusbcore/rh.c
index a082fe62b1f0..20c08cd9dcbf 100644
--- a/drivers/usb/wusbcore/rh.c
+++ b/drivers/usb/wusbcore/rh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Host Controller
  * Root Hub operations
@@ -6,21 +7,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * We fake a root hub that has fake ports (as many as simultaneous
  * devices the Wireless USB Host Controller can deal with). For each
  * port we keep an state in @wusbhc->port[index] identical to the one
diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c
index 170f2c38de9b..33d2f5d7f33b 100644
--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Host Controller
  * Security support: encryption enablement, etc
@@ -5,21 +6,6 @@
  * Copyright (C) 2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * FIXME: docs
  */
 #include <linux/types.h>
@@ -28,6 +14,7 @@
 #include <linux/random.h>
 #include <linux/export.h>
 #include "wusbhc.h"
+#include <asm/unaligned.h>
 
 static void wusbhc_gtk_rekey_work(struct work_struct *work);
 
@@ -367,7 +354,6 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev,
 	struct usb_device *usb_dev = wusb_dev->usb_dev;
 	struct device *dev = &usb_dev->dev;
 	u32 tkid;
-	__le32 tkid_le;
 	struct usb_handshake *hs;
 	struct aes_ccm_nonce ccm_n;
 	u8 mic[8];
@@ -385,11 +371,10 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev,
 		goto error_dev_set_encryption;
 
 	tkid = wusbhc_next_tkid(wusbhc, wusb_dev);
-	tkid_le = cpu_to_le32(tkid);
 
 	hs[0].bMessageNumber = 1;
 	hs[0].bStatus = 0;
-	memcpy(hs[0].tTKID, &tkid_le, sizeof(hs[0].tTKID));
+	put_unaligned_le32(tkid, hs[0].tTKID);
 	hs[0].bReserved = 0;
 	memcpy(hs[0].CDID, &wusb_dev->cdid, sizeof(hs[0].CDID));
 	get_random_bytes(&hs[0].nonce, sizeof(hs[0].nonce));
@@ -441,7 +426,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev,
 
 	/* Setup the CCM nonce */
 	memset(&ccm_n.sfn, 0, sizeof(ccm_n.sfn)); /* Per WUSB1.0[6.5.2] */
-	memcpy(ccm_n.tkid, &tkid_le, sizeof(ccm_n.tkid));
+	put_unaligned_le32(tkid, ccm_n.tkid);
 	ccm_n.src_addr = wusbhc->uwb_rc->uwb_dev.dev_addr;
 	ccm_n.dest_addr.data[0] = wusb_dev->addr;
 	ccm_n.dest_addr.data[1] = 0;
@@ -472,7 +457,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev,
 	/* Send Handshake3 */
 	hs[2].bMessageNumber = 3;
 	hs[2].bStatus = 0;
-	memcpy(hs[2].tTKID, &tkid_le, sizeof(hs[2].tTKID));
+	put_unaligned_le32(tkid, hs[2].tTKID);
 	hs[2].bReserved = 0;
 	memcpy(hs[2].CDID, &wusb_dev->cdid, sizeof(hs[2].CDID));
 	memcpy(hs[2].nonce, hs[0].nonce, sizeof(hs[2].nonce));
diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c
index d01496fd27fe..6827075fb8a1 100644
--- a/drivers/usb/wusbcore/wa-hc.c
+++ b/drivers/usb/wusbcore/wa-hc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wire Adapter Host Controller Driver
  * Common items to HWA and DWA based HCDs
@@ -5,21 +6,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * FIXME: docs
  */
 #include <linux/slab.h>
diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index edc7267157f3..ec90fff21deb 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * HWA Host Controller Driver
  * Wire Adapter Control/Data Streaming Iface (WUSB1.0[8])
@@ -5,21 +6,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * This driver implements a USB Host Controller (struct usb_hcd) for a
  * Wireless USB Host Controller based on the Wireless USB 1.0
  * Host-Wire-Adapter specification (in layman terms, a USB-dongle that
diff --git a/drivers/usb/wusbcore/wa-nep.c b/drivers/usb/wusbcore/wa-nep.c
index e3819fc182b0..9fdcb6b84abf 100644
--- a/drivers/usb/wusbcore/wa-nep.c
+++ b/drivers/usb/wusbcore/wa-nep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB Wire Adapter: Control/Data Streaming Interface (WUSB[8])
  * Notification EndPoint support
@@ -5,21 +6,6 @@
  * Copyright (C) 2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * This part takes care of getting the notification from the hw
  * only and dispatching through wusbwad into
  * wa_notif_dispatch. Handling is done there.
diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index c7ecdbe19a32..d0f1a6698460 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB Wire Adapter
  * rpipe management
@@ -5,21 +6,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * FIXME: docs
  *
  * RPIPE
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index e70322b1dd02..7fca4e7e556d 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * WUSB Wire Adapter
  * Data transfer and URB enqueing
@@ -5,21 +6,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * How transfers work: get a buffer, break it up in segments (segment
  * size is a multiple of the maxpacket size). For each segment issue a
  * segment request (struct wa_xfer_*), then send the data buffer if
@@ -2156,6 +2142,7 @@ static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer,
 		 * do not increment RPIPE avail for the WA_SEG_DELAYED case
 		 * since it has not been submitted to the RPIPE.
 		 */
+		/* fall through */
 		case WA_SEG_DELAYED:
 			xfer->segs_done++;
 			current_seg->status = status;
diff --git a/drivers/usb/wusbcore/wusbhc.c b/drivers/usb/wusbcore/wusbhc.c
index 5338e42533c8..e5ba6140c1ba 100644
--- a/drivers/usb/wusbcore/wusbhc.c
+++ b/drivers/usb/wusbcore/wusbhc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Host Controller
  * sysfs glue, wusbcore module support and life cycle management
@@ -6,21 +7,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * Creation/destruction of wusbhc is split in two parts; that that
  * doesn't require the HCD to be added (wusbhc_{create,destroy}) and
  * the one that requires (phase B, wusbhc_b_{create,destroy}).
diff --git a/drivers/usb/wusbcore/wusbhc.h b/drivers/usb/wusbcore/wusbhc.h
index 8c5bd000739b..7681d796ca5b 100644
--- a/drivers/usb/wusbcore/wusbhc.h
+++ b/drivers/usb/wusbcore/wusbhc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Host Controller
  * Common infrastructure for WHCI and HWA WUSB-HC drivers
@@ -6,21 +7,6 @@
  * Copyright (C) 2005-2006 Intel Corporation
  * Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
  *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
  * This driver implements parts common to all Wireless USB Host
  * Controllers (struct wusbhc, embedding a struct usb_hcd) and is used
  * by:
diff --git a/drivers/uwb/Makefile b/drivers/uwb/Makefile
index d47dd6e2942c..32f4de7afbd6 100644
--- a/drivers/uwb/Makefile
+++ b/drivers/uwb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_UWB)		+= uwb.o
 obj-$(CONFIG_UWB_WHCI)		+= umc.o whci.o whc-rc.o
 obj-$(CONFIG_UWB_HWA)		+= hwa-rc.o
diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c
index 35a1e777b449..9a53912bdfe9 100644
--- a/drivers/uwb/hwa-rc.c
+++ b/drivers/uwb/hwa-rc.c
@@ -825,6 +825,8 @@ static int hwarc_probe(struct usb_interface *iface,
 
 	if (iface->cur_altsetting->desc.bNumEndpoints < 1)
 		return -ENODEV;
+	if (!usb_endpoint_xfer_int(&iface->cur_altsetting->endpoint[0].desc))
+		return -ENODEV;
 
 	result = -ENOMEM;
 	uwb_rc = uwb_rc_alloc();
diff --git a/drivers/uwb/i1480/dfu/Makefile b/drivers/uwb/i1480/dfu/Makefile
index bd1b9f25424c..4739fdac5922 100644
--- a/drivers/uwb/i1480/dfu/Makefile
+++ b/drivers/uwb/i1480/dfu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_UWB_I1480U)	+= i1480-dfu-usb.o
 
 i1480-dfu-usb-objs := \
diff --git a/drivers/uwb/uwbd.c b/drivers/uwb/uwbd.c
index 01c20a260a8b..39dd4ef53c77 100644
--- a/drivers/uwb/uwbd.c
+++ b/drivers/uwb/uwbd.c
@@ -302,18 +302,22 @@ static int uwbd(void *param)
 /** Start the UWB daemon */
 void uwbd_start(struct uwb_rc *rc)
 {
-	rc->uwbd.task = kthread_run(uwbd, rc, "uwbd");
-	if (rc->uwbd.task == NULL)
+	struct task_struct *task = kthread_run(uwbd, rc, "uwbd");
+	if (IS_ERR(task)) {
+		rc->uwbd.task = NULL;
 		printk(KERN_ERR "UWB: Cannot start management daemon; "
 		       "UWB won't work\n");
-	else
+	} else {
+		rc->uwbd.task = task;
 		rc->uwbd.pid = rc->uwbd.task->pid;
+	}
 }
 
 /* Stop the UWB daemon and free any unprocessed events */
 void uwbd_stop(struct uwb_rc *rc)
 {
-	kthread_stop(rc->uwbd.task);
+	if (rc->uwbd.task)
+		kthread_stop(rc->uwbd.task);
 	uwbd_flush(rc);
 }
 
diff --git a/drivers/vfio/Makefile b/drivers/vfio/Makefile
index 4a23c13b6be4..de67c4725cce 100644
--- a/drivers/vfio/Makefile
+++ b/drivers/vfio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vfio_virqfd-y := virqfd.o
 
 obj-$(CONFIG_VFIO) += vfio.o
diff --git a/drivers/vfio/platform/Makefile b/drivers/vfio/platform/Makefile
index 41a6224f5e6b..3f3a24e7c4ef 100644
--- a/drivers/vfio/platform/Makefile
+++ b/drivers/vfio/platform/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vfio-platform-base-y := vfio_platform_common.o vfio_platform_irq.o
 vfio-platform-y := vfio_platform.o
 
diff --git a/drivers/vfio/platform/reset/Makefile b/drivers/vfio/platform/reset/Makefile
index 93f4e232697b..90ba20b646da 100644
--- a/drivers/vfio/platform/reset/Makefile
+++ b/drivers/vfio/platform/reset/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 vfio-platform-calxedaxgmac-y := vfio_platform_calxedaxgmac.o
 vfio-platform-amdxgbe-y := vfio_platform_amdxgbe.o
 
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index f5a86f651f38..2bc3705a99bd 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -665,7 +665,7 @@ static int vfio_dev_viable(struct device *dev, void *data)
 {
 	struct vfio_group *group = data;
 	struct vfio_device *device;
-	struct device_driver *drv = ACCESS_ONCE(dev->driver);
+	struct device_driver *drv = READ_ONCE(dev->driver);
 	struct vfio_unbound_dev *unbound;
 	int ret = -EINVAL;
 
diff --git a/drivers/vhost/Makefile b/drivers/vhost/Makefile
index 6b012b986b57..6c6df24f770c 100644
--- a/drivers/vhost/Makefile
+++ b/drivers/vhost/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VHOST_NET) += vhost_net.o
 vhost_net-y := net.o
 
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 046f6d280af5..35e929f132e8 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -929,7 +929,7 @@ vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
 			continue;
 		}
 
-		tpg = ACCESS_ONCE(vs_tpg[*target]);
+		tpg = READ_ONCE(vs_tpg[*target]);
 		if (unlikely(!tpg)) {
 			/* Target does not exist, fail the request */
 			vhost_scsi_send_bad_target(vs, vq, head, out);
diff --git a/drivers/vhost/test.h b/drivers/vhost/test.h
index 1fef5df82153..7dd265bfdf81 100644
--- a/drivers/vhost/test.h
+++ b/drivers/vhost/test.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_VHOST_TEST_H
 #define LINUX_VHOST_TEST_H
 
diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
index d59a9cc65f9d..79c6e7a60a5e 100644
--- a/drivers/vhost/vhost.h
+++ b/drivers/vhost/vhost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VHOST_H
 #define _VHOST_H
 
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 445b2c230b56..df7650adede9 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VGASTATE)            += vgastate.o
 obj-$(CONFIG_HDMI)                += hdmi.o
 
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 8905129691e8..5e28f01c8391 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Backlight & LCD drivers
 
 obj-$(CONFIG_LCD_AMS369FG06)		+= ams369fg06.o
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 84a110a719cb..96312c3afc07 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -78,7 +78,7 @@ static struct kb3886bl_machinfo *bl_machinfo;
 static unsigned long kb3886bl_flags;
 #define KB3886BL_SUSPENDED     0x01
 
-static struct dmi_system_id kb3886bl_device_table[] __initdata = {
+static const struct dmi_system_id kb3886bl_device_table[] __initconst = {
 	{
 		.ident = "Sahara Touch-iT",
 		.matches = {
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 2111d06f8c81..7f1f1fbcef9e 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -117,7 +117,7 @@ config DUMMY_CONSOLE_ROWS
           Select 25 if you use a 640x480 resolution by default.
 
 config FRAMEBUFFER_CONSOLE
-	tristate "Framebuffer Console support"
+	bool "Framebuffer Console support"
 	depends on FB && !UML
 	select VT_HW_CONSOLE_BINDING
 	select CRC32
diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile
index 43bfa485db96..db07b784bd2c 100644
--- a/drivers/video/console/Makefile
+++ b/drivers/video/console/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux graphics to console drivers.
 # 5 Aug 1999, James Simmons, <mailto:jsimmons@users.sf.net>
 # Rewritten to use lists instead of if-statements.
@@ -7,13 +8,5 @@ obj-$(CONFIG_SGI_NEWPORT_CONSOLE) += newport_con.o
 obj-$(CONFIG_STI_CONSOLE)         += sticon.o sticore.o
 obj-$(CONFIG_VGA_CONSOLE)         += vgacon.o
 obj-$(CONFIG_MDA_CONSOLE)         += mdacon.o
-obj-$(CONFIG_FRAMEBUFFER_CONSOLE) += fbcon.o bitblit.o softcursor.o
-ifeq ($(CONFIG_FB_TILEBLITTING),y)
-obj-$(CONFIG_FRAMEBUFFER_CONSOLE)     += tileblit.o
-endif
-ifeq ($(CONFIG_FRAMEBUFFER_CONSOLE_ROTATION),y)
-obj-$(CONFIG_FRAMEBUFFER_CONSOLE)     += fbcon_rotate.o fbcon_cw.o fbcon_ud.o \
-                                         fbcon_ccw.o
-endif
 
 obj-$(CONFIG_FB_STI)              += sticore.o
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index dc06cb6a15dc..445b1dc5d441 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -398,9 +398,8 @@ static const char *vgacon_startup(void)
 #endif
 	}
 
-	/* boot_params.screen_info initialized? */
-	if ((screen_info.orig_video_mode  == 0) &&
-	    (screen_info.orig_video_lines == 0) &&
+	/* boot_params.screen_info reasonably initialized? */
+	if ((screen_info.orig_video_lines == 0) ||
 	    (screen_info.orig_video_cols  == 0))
 		goto no_vga;
 
diff --git a/drivers/video/fbdev/68328fb.c b/drivers/video/fbdev/68328fb.c
index c0c6b88d3839..d48e96088f76 100644
--- a/drivers/video/fbdev/68328fb.c
+++ b/drivers/video/fbdev/68328fb.c
@@ -72,7 +72,7 @@ static struct fb_var_screeninfo mc68x328fb_default __initdata = {
       	.vmode =	FB_VMODE_NONINTERLACED,
 };
 
-static struct fb_fix_screeninfo mc68x328fb_fix __initdata = {
+static const struct fb_fix_screeninfo mc68x328fb_fix __initconst = {
 	.id =		"68328fb",
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.xpanstep =	1,
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 5c6696bb56da..5e58f5ec0a28 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -2173,7 +2173,7 @@ config FB_PS3_DEFAULT_SIZE_M
 
 config FB_XILINX
 	tristate "Xilinx frame buffer support"
-	depends on FB && (XILINX_VIRTEX || MICROBLAZE || ARCH_ZYNQ)
+	depends on FB && (XILINX_VIRTEX || MICROBLAZE || ARCH_ZYNQ || ARCH_ZYNQMP)
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
diff --git a/drivers/video/fbdev/Makefile b/drivers/video/fbdev/Makefile
index ee8c81405a7f..8895536a20d6 100644
--- a/drivers/video/fbdev/Makefile
+++ b/drivers/video/fbdev/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux video drivers.
 # 5 Aug 1999, James Simmons, <mailto:jsimmons@users.sf.net>
 # Rewritten to use lists instead of if-statements.
diff --git a/drivers/video/fbdev/amba-clcd-nomadik.h b/drivers/video/fbdev/amba-clcd-nomadik.h
index a24032c8156e..462c31381fa1 100644
--- a/drivers/video/fbdev/amba-clcd-nomadik.h
+++ b/drivers/video/fbdev/amba-clcd-nomadik.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AMBA_CLCD_NOMADIK_H
 #define _AMBA_CLCD_NOMADIK_H
 
diff --git a/drivers/video/fbdev/amba-clcd-versatile.h b/drivers/video/fbdev/amba-clcd-versatile.h
index 4692c3092823..b20baa47e6ad 100644
--- a/drivers/video/fbdev/amba-clcd-versatile.h
+++ b/drivers/video/fbdev/amba-clcd-versatile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Special local versatile callbacks
  */
diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c
index ffc2c33c6cef..36d25190b48c 100644
--- a/drivers/video/fbdev/amba-clcd.c
+++ b/drivers/video/fbdev/amba-clcd.c
@@ -1035,7 +1035,7 @@ static struct clcd_vendor_data vendor_nomadik = {
 	.init_panel = nomadik_clcd_init_panel,
 };
 
-static struct amba_id clcdfb_id_table[] = {
+static const struct amba_id clcdfb_id_table[] = {
 	{
 		.id	= 0x00041110,
 		.mask	= 0x000ffffe,
diff --git a/drivers/video/fbdev/arkfb.c b/drivers/video/fbdev/arkfb.c
index 6a317de7082c..13ba371e70aa 100644
--- a/drivers/video/fbdev/arkfb.c
+++ b/drivers/video/fbdev/arkfb.c
@@ -1157,7 +1157,7 @@ fail:
 
 /* List of boards that we are trying to support */
 
-static struct pci_device_id ark_devices[] = {
+static const struct pci_device_id ark_devices[] = {
 	{PCI_DEVICE(0xEDD8, 0xA099)},
 	{0, 0, 0, 0, 0, 0, 0}
 };
diff --git a/drivers/video/fbdev/asiliantfb.c b/drivers/video/fbdev/asiliantfb.c
index 91eea4583382..ea31054a28ca 100644
--- a/drivers/video/fbdev/asiliantfb.c
+++ b/drivers/video/fbdev/asiliantfb.c
@@ -592,7 +592,7 @@ static void asiliantfb_remove(struct pci_dev *dp)
 	framebuffer_release(p);
 }
 
-static struct pci_device_id asiliantfb_pci_tbl[] = {
+static const struct pci_device_id asiliantfb_pci_tbl[] = {
 	{ PCI_VENDOR_ID_CT, PCI_DEVICE_ID_CT_69000, PCI_ANY_ID, PCI_ANY_ID },
 	{ 0 }
 };
diff --git a/drivers/video/fbdev/atafb.h b/drivers/video/fbdev/atafb.h
index 014e05906cb1..2b2675980087 100644
--- a/drivers/video/fbdev/atafb.h
+++ b/drivers/video/fbdev/atafb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VIDEO_ATAFB_H
 #define _VIDEO_ATAFB_H
 
diff --git a/drivers/video/fbdev/atafb_utils.h b/drivers/video/fbdev/atafb_utils.h
index ac9e19dc5057..8f3396ea8ae5 100644
--- a/drivers/video/fbdev/atafb_utils.h
+++ b/drivers/video/fbdev/atafb_utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VIDEO_ATAFB_UTILS_H
 #define _VIDEO_ATAFB_UTILS_H
 
diff --git a/drivers/video/fbdev/atmel_lcdfb.c b/drivers/video/fbdev/atmel_lcdfb.c
index 669ecc755fa9..e06358da4b99 100644
--- a/drivers/video/fbdev/atmel_lcdfb.c
+++ b/drivers/video/fbdev/atmel_lcdfb.c
@@ -320,7 +320,7 @@ static inline void atmel_lcdfb_power_control(struct atmel_lcdfb_info *sinfo, int
 	}
 }
 
-static struct fb_fix_screeninfo atmel_lcdfb_fix __initdata = {
+static const struct fb_fix_screeninfo atmel_lcdfb_fix __initconst = {
 	.type		= FB_TYPE_PACKED_PIXELS,
 	.visual		= FB_VISUAL_TRUECOLOR,
 	.xpanstep	= 0,
diff --git a/drivers/video/fbdev/aty/Makefile b/drivers/video/fbdev/aty/Makefile
index a6cc0e9ec790..069465c82d6d 100644
--- a/drivers/video/fbdev/aty/Makefile
+++ b/drivers/video/fbdev/aty/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FB_ATY) += atyfb.o
 obj-$(CONFIG_FB_ATY128) += aty128fb.o
 obj-$(CONFIG_FB_RADEON) += radeonfb.o
diff --git a/drivers/video/fbdev/aty/ati_ids.h b/drivers/video/fbdev/aty/ati_ids.h
index 3e9d28bcd9f8..2b589d687b4c 100644
--- a/drivers/video/fbdev/aty/ati_ids.h
+++ b/drivers/video/fbdev/aty/ati_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ATI PCI IDs from XFree86, kept here to make sync'ing with
  * XFree much simpler. Currently, this list is only used by
diff --git a/drivers/video/fbdev/aty/aty128fb.c b/drivers/video/fbdev/aty/aty128fb.c
index fa07242a78d2..db18474607c9 100644
--- a/drivers/video/fbdev/aty/aty128fb.c
+++ b/drivers/video/fbdev/aty/aty128fb.c
@@ -116,7 +116,7 @@ static const struct fb_var_screeninfo default_var = {
 
 /* default modedb mode */
 /* 640x480, 60 Hz, Non-Interlaced (25.172 MHz dotclock) */
-static struct fb_videomode defaultmode = {
+static const struct fb_videomode defaultmode = {
 	.refresh =	60,
 	.xres =		640,
 	.yres =		480,
@@ -166,7 +166,7 @@ static int aty128_pci_resume(struct pci_dev *pdev);
 static int aty128_do_resume(struct pci_dev *pdev);
 
 /* supported Rage128 chipsets */
-static struct pci_device_id aty128_pci_tbl[] = {
+static const struct pci_device_id aty128_pci_tbl[] = {
 	{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LE,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, rage_M3_pci },
 	{ PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_RAGE128_LF,
diff --git a/drivers/video/fbdev/aty/atyfb.h b/drivers/video/fbdev/aty/atyfb.h
index 63c4842eb224..8235b285dbb2 100644
--- a/drivers/video/fbdev/aty/atyfb.h
+++ b/drivers/video/fbdev/aty/atyfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ATI Frame Buffer Device Driver Core Definitions
  */
diff --git a/drivers/video/fbdev/aty/atyfb_base.c b/drivers/video/fbdev/aty/atyfb_base.c
index b55fdac9c9f5..3ec72f19114b 100644
--- a/drivers/video/fbdev/aty/atyfb_base.c
+++ b/drivers/video/fbdev/aty/atyfb_base.c
@@ -274,7 +274,7 @@ static struct fb_var_screeninfo default_var = {
 	0, FB_VMODE_NONINTERLACED
 };
 
-static struct fb_videomode defmode = {
+static const struct fb_videomode defmode = {
 	/* 640x480 @ 60 Hz, 31.5 kHz hsync */
 	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
 	0, FB_VMODE_NONINTERLACED
@@ -1855,7 +1855,7 @@ static int atyfb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
 	case ATYIO_CLKR:
 		if (M64_HAS(INTEGRATED)) {
-			struct atyclk clk;
+			struct atyclk clk = { 0 };
 			union aty_pll *pll = &par->pll;
 			u32 dsp_config = pll->ct.dsp_config;
 			u32 dsp_on_off = pll->ct.dsp_on_off;
@@ -3756,7 +3756,7 @@ static void atyfb_pci_remove(struct pci_dev *pdev)
 	atyfb_remove(info);
 }
 
-static struct pci_device_id atyfb_pci_tbl[] = {
+static const struct pci_device_id atyfb_pci_tbl[] = {
 #ifdef CONFIG_FB_ATY_GX
 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64GX) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_ATI, PCI_CHIP_MACH64CX) },
diff --git a/drivers/video/fbdev/aty/mach64_accel.c b/drivers/video/fbdev/aty/mach64_accel.c
index 182bd680141f..2541a0e0de76 100644
--- a/drivers/video/fbdev/aty/mach64_accel.c
+++ b/drivers/video/fbdev/aty/mach64_accel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  *  ATI Mach64 Hardware Acceleration
diff --git a/drivers/video/fbdev/aty/mach64_ct.c b/drivers/video/fbdev/aty/mach64_ct.c
index 51f29d627ceb..7d3bd723d3d5 100644
--- a/drivers/video/fbdev/aty/mach64_ct.c
+++ b/drivers/video/fbdev/aty/mach64_ct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  *  ATI Mach64 CT/VT/GT/LT Support
diff --git a/drivers/video/fbdev/aty/mach64_cursor.c b/drivers/video/fbdev/aty/mach64_cursor.c
index 2fa0317ab3c7..4cde25eab8e8 100644
--- a/drivers/video/fbdev/aty/mach64_cursor.c
+++ b/drivers/video/fbdev/aty/mach64_cursor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  ATI Mach64 CT/VT/GT/LT Cursor Support
  */
diff --git a/drivers/video/fbdev/aty/mach64_gx.c b/drivers/video/fbdev/aty/mach64_gx.c
index 10c988aef58e..27cb65fa2ba2 100644
--- a/drivers/video/fbdev/aty/mach64_gx.c
+++ b/drivers/video/fbdev/aty/mach64_gx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  *  ATI Mach64 GX Support
diff --git a/drivers/video/fbdev/aty/radeon_accel.c b/drivers/video/fbdev/aty/radeon_accel.c
index a469a3d6edcb..bb147d8bf82d 100644
--- a/drivers/video/fbdev/aty/radeon_accel.c
+++ b/drivers/video/fbdev/aty/radeon_accel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "radeonfb.h"
 
 /* the accelerated functions here are patterned after the 
diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c
index 6b4c7872b375..1e2ec360f8c1 100644
--- a/drivers/video/fbdev/aty/radeon_base.c
+++ b/drivers/video/fbdev/aty/radeon_base.c
@@ -96,7 +96,7 @@
 #define CHIP_DEF(id, family, flags)					\
 	{ PCI_VENDOR_ID_ATI, id, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (flags) | (CHIP_FAMILY_##family) }
 
-static struct pci_device_id radeonfb_pci_table[] = {
+static const struct pci_device_id radeonfb_pci_table[] = {
         /* Radeon Xpress 200m */
 	CHIP_DEF(PCI_CHIP_RS480_5955,   RS480,  CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
 	CHIP_DEF(PCI_CHIP_RS482_5975,	RS480,	CHIP_HAS_CRTC2 | CHIP_IS_IGP | CHIP_IS_MOBILITY),
@@ -2241,7 +2241,7 @@ static ssize_t radeon_show_edid2(struct file *filp, struct kobject *kobj,
 	return radeon_show_one_edid(buf, off, count, rinfo->mon2_EDID);
 }
 
-static struct bin_attribute edid1_attr = {
+static const struct bin_attribute edid1_attr = {
 	.attr   = {
 		.name	= "edid1",
 		.mode	= 0444,
@@ -2250,7 +2250,7 @@ static struct bin_attribute edid1_attr = {
 	.read	= radeon_show_edid1,
 };
 
-static struct bin_attribute edid2_attr = {
+static const struct bin_attribute edid2_attr = {
 	.attr   = {
 		.name	= "edid2",
 		.mode	= 0444,
diff --git a/drivers/video/fbdev/aty/radeon_i2c.c b/drivers/video/fbdev/aty/radeon_i2c.c
index ab1d0fd76316..269b12ebb673 100644
--- a/drivers/video/fbdev/aty/radeon_i2c.c
+++ b/drivers/video/fbdev/aty/radeon_i2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "radeonfb.h"
 
 #include <linux/module.h>
diff --git a/drivers/video/fbdev/aty/radeon_monitor.c b/drivers/video/fbdev/aty/radeon_monitor.c
index dd823f5fe4c9..9966c58aa26c 100644
--- a/drivers/video/fbdev/aty/radeon_monitor.c
+++ b/drivers/video/fbdev/aty/radeon_monitor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "radeonfb.h"
 
 #include <linux/slab.h>
diff --git a/drivers/video/fbdev/aty/radeon_pm.c b/drivers/video/fbdev/aty/radeon_pm.c
index 1417542738fc..f7c253dd5899 100644
--- a/drivers/video/fbdev/aty/radeon_pm.c
+++ b/drivers/video/fbdev/aty/radeon_pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	drivers/video/aty/radeon_pm.c
  *
diff --git a/drivers/video/fbdev/aty/radeonfb.h b/drivers/video/fbdev/aty/radeonfb.h
index 962e31263225..131b34dd65af 100644
--- a/drivers/video/fbdev/aty/radeonfb.h
+++ b/drivers/video/fbdev/aty/radeonfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RADEONFB_H__
 #define __RADEONFB_H__
 
diff --git a/drivers/video/fbdev/bfin-lq035q1-fb.c b/drivers/video/fbdev/bfin-lq035q1-fb.c
index b594a58ff21d..b459354ad940 100644
--- a/drivers/video/fbdev/bfin-lq035q1-fb.c
+++ b/drivers/video/fbdev/bfin-lq035q1-fb.c
@@ -841,7 +841,7 @@ static int bfin_lq035q1_resume(struct device *dev)
 	return 0;
 }
 
-static struct dev_pm_ops bfin_lq035q1_dev_pm_ops = {
+static const struct dev_pm_ops bfin_lq035q1_dev_pm_ops = {
 	.suspend = bfin_lq035q1_suspend,
 	.resume  = bfin_lq035q1_resume,
 };
diff --git a/drivers/video/fbdev/bw2.c b/drivers/video/fbdev/bw2.c
index 8c5b281f0b29..7aa972072357 100644
--- a/drivers/video/fbdev/bw2.c
+++ b/drivers/video/fbdev/bw2.c
@@ -333,8 +333,8 @@ static int bw2_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: bwtwo at %lx:%lx\n",
-	       dp->full_name, par->which_io, info->fix.smem_start);
+	printk(KERN_INFO "%pOF: bwtwo at %lx:%lx\n",
+	       dp, par->which_io, info->fix.smem_start);
 
 	return 0;
 
diff --git a/drivers/video/fbdev/carminefb.h b/drivers/video/fbdev/carminefb.h
index 05306de0c6b6..297688eba469 100644
--- a/drivers/video/fbdev/carminefb.h
+++ b/drivers/video/fbdev/carminefb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CARMINE_CARMINE_H
 #define CARMINE_CARMINE_H
 
diff --git a/drivers/video/fbdev/carminefb_regs.h b/drivers/video/fbdev/carminefb_regs.h
index 045215600b73..ae18318d2fc2 100644
--- a/drivers/video/fbdev/carminefb_regs.h
+++ b/drivers/video/fbdev/carminefb_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CARMINEFB_REGS_H
 #define _CARMINEFB_REGS_H
 
diff --git a/drivers/video/fbdev/cg14.c b/drivers/video/fbdev/cg14.c
index 43e915eaf606..8de88b129b62 100644
--- a/drivers/video/fbdev/cg14.c
+++ b/drivers/video/fbdev/cg14.c
@@ -553,8 +553,8 @@ static int cg14_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: cgfourteen at %lx:%lx, %dMB\n",
-	       dp->full_name,
+	printk(KERN_INFO "%pOF: cgfourteen at %lx:%lx, %dMB\n",
+	       dp,
 	       par->iospace, info->fix.smem_start,
 	       par->ramsize >> 20);
 
diff --git a/drivers/video/fbdev/cg3.c b/drivers/video/fbdev/cg3.c
index 716391f22e75..6c334260cf53 100644
--- a/drivers/video/fbdev/cg3.c
+++ b/drivers/video/fbdev/cg3.c
@@ -412,8 +412,8 @@ static int cg3_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: cg3 at %lx:%lx\n",
-	       dp->full_name, par->which_io, info->fix.smem_start);
+	printk(KERN_INFO "%pOF: cg3 at %lx:%lx\n",
+	       dp, par->which_io, info->fix.smem_start);
 
 	return 0;
 
diff --git a/drivers/video/fbdev/cg6.c b/drivers/video/fbdev/cg6.c
index bdf901ed5291..0296c21acc78 100644
--- a/drivers/video/fbdev/cg6.c
+++ b/drivers/video/fbdev/cg6.c
@@ -810,8 +810,8 @@ static int cg6_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: CGsix [%s] at %lx:%lx\n",
-	       dp->full_name, info->fix.id,
+	printk(KERN_INFO "%pOF: CGsix [%s] at %lx:%lx\n",
+	       dp, info->fix.id,
 	       par->which_io, info->fix.smem_start);
 
 	return 0;
diff --git a/drivers/video/fbdev/chipsfb.c b/drivers/video/fbdev/chipsfb.c
index 59abdc6a97f6..f103665cad43 100644
--- a/drivers/video/fbdev/chipsfb.c
+++ b/drivers/video/fbdev/chipsfb.c
@@ -292,7 +292,7 @@ static void chips_hw_init(void)
 		write_fr(chips_init_fr[i].addr, chips_init_fr[i].data);
 }
 
-static struct fb_fix_screeninfo chipsfb_fix = {
+static const struct fb_fix_screeninfo chipsfb_fix = {
 	.id =		"C&T 65550",
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.visual =	FB_VISUAL_PSEUDOCOLOR,
@@ -309,7 +309,7 @@ static struct fb_fix_screeninfo chipsfb_fix = {
 	.smem_len =	0x100000,	/* 1MB */
 };
 
-static struct fb_var_screeninfo chipsfb_var = {
+static const struct fb_var_screeninfo chipsfb_var = {
 	.xres = 800,
 	.yres = 600,
 	.xres_virtual = 800,
diff --git a/drivers/video/fbdev/cobalt_lcdfb.c b/drivers/video/fbdev/cobalt_lcdfb.c
index 9da90bd242f4..0ef633e278a1 100644
--- a/drivers/video/fbdev/cobalt_lcdfb.c
+++ b/drivers/video/fbdev/cobalt_lcdfb.c
@@ -126,7 +126,7 @@ static void lcd_clear(struct fb_info *info)
 	lcd_write_control(info, LCD_RESET);
 }
 
-static struct fb_fix_screeninfo cobalt_lcdfb_fix = {
+static const struct fb_fix_screeninfo cobalt_lcdfb_fix = {
 	.id		= "cobalt-lcd",
 	.type		= FB_TYPE_TEXT,
 	.type_aux	= FB_AUX_TEXT_MDA,
diff --git a/drivers/video/fbdev/core/Makefile b/drivers/video/fbdev/core/Makefile
index 9e3ddf225393..d34fd182ca68 100644
--- a/drivers/video/fbdev/core/Makefile
+++ b/drivers/video/fbdev/core/Makefile
@@ -1,9 +1,24 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FB_CMDLINE)          += fb_cmdline.o
 obj-$(CONFIG_FB_NOTIFY)           += fb_notify.o
 obj-$(CONFIG_FB)                  += fb.o
 fb-y                              := fbmem.o fbmon.o fbcmap.o fbsysfs.o \
                                      modedb.o fbcvt.o
 fb-$(CONFIG_FB_DEFERRED_IO)       += fb_defio.o
+
+ifeq ($(CONFIG_FRAMEBUFFER_CONSOLE),y)
+fb-y				  += fbcon.o bitblit.o softcursor.o
+ifeq ($(CONFIG_FB_TILEBLITTING),y)
+fb-y				  += tileblit.o
+endif
+ifeq ($(CONFIG_FRAMEBUFFER_CONSOLE_ROTATION),y)
+fb-y				  += fbcon_rotate.o fbcon_cw.o fbcon_ud.o \
+				     fbcon_ccw.o
+endif
+ifeq ($(CONFIG_DMI),y)
+fb-y				  += fbcon_dmi_quirks.o
+endif
+endif
 fb-objs                           := $(fb-y)
 
 obj-$(CONFIG_FB_CFB_FILLRECT)  += cfbfillrect.o
diff --git a/drivers/video/console/bitblit.c b/drivers/video/fbdev/core/bitblit.c
index dbfe4eecf12e..790900d646c0 100644
--- a/drivers/video/console/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -203,7 +203,7 @@ static void bit_putcs(struct vc_data *vc, struct fb_info *info,
 }
 
 static void bit_clear_margins(struct vc_data *vc, struct fb_info *info,
-			      int bottom_only)
+			      int color, int bottom_only)
 {
 	unsigned int cw = vc->vc_font.width;
 	unsigned int ch = vc->vc_font.height;
@@ -213,7 +213,7 @@ static void bit_clear_margins(struct vc_data *vc, struct fb_info *info,
 	unsigned int bs = info->var.yres - bh;
 	struct fb_fillrect region;
 
-	region.color = 0;
+	region.color = color;
 	region.rop = ROP_COPY;
 
 	if (rw && !bottom_only) {
@@ -416,7 +416,3 @@ void fbcon_set_bitops(struct fbcon_ops *ops)
 
 EXPORT_SYMBOL(fbcon_set_bitops);
 
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Bit Blitting Operation");
-MODULE_LICENSE("GPL");
-
diff --git a/drivers/video/fbdev/core/fb_draw.h b/drivers/video/fbdev/core/fb_draw.h
index 624ee115f129..e0d829873930 100644
--- a/drivers/video/fbdev/core/fb_draw.h
+++ b/drivers/video/fbdev/core/fb_draw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FB_DRAW_H
 #define _FB_DRAW_H
 
diff --git a/drivers/video/console/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 12ded23f1aaf..04612f938bab 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -68,6 +68,7 @@
 #include <linux/kd.h>
 #include <linux/slab.h>
 #include <linux/fb.h>
+#include <linux/fbcon.h>
 #include <linux/vt_kern.h>
 #include <linux/selection.h>
 #include <linux/font.h>
@@ -135,8 +136,9 @@ static char fontname[40];
 static int info_idx = -1;
 
 /* console rotation */
-static int initial_rotation;
+static int initial_rotation = -1;
 static int fbcon_has_sysfs;
+static int margin_color;
 
 static const struct consw fb_con;
 
@@ -491,6 +493,13 @@ static int __init fb_console_setup(char *this_opt)
 				initial_rotation = 0;
 			continue;
 		}
+
+		if (!strncmp(options, "margin:", 7)) {
+			options += 7;
+			if (*options)
+				margin_color = simple_strtoul(options, &options, 0);
+			continue;
+		}
 	}
 	return 1;
 }
@@ -563,7 +572,7 @@ static void fbcon_prepare_logo(struct vc_data *vc, struct fb_info *info,
 	unsigned short *save = NULL, *r, *q;
 	int logo_height;
 
-	if (info->flags & FBINFO_MODULE) {
+	if (info->fbops->owner) {
 		logo_shown = FBCON_LOGO_DONTSHOW;
 		return;
 	}
@@ -954,7 +963,10 @@ static const char *fbcon_startup(void)
 	ops->cur_rotate = -1;
 	ops->cur_blink_jiffies = HZ / 5;
 	info->fbcon_par = ops;
-	p->con_rotate = initial_rotation;
+	if (initial_rotation != -1)
+		p->con_rotate = initial_rotation;
+	else
+		p->con_rotate = fbcon_platform_get_rotate(info);
 	set_blitting_type(vc, info);
 
 	if (info->fix.type != FB_TYPE_TEXT) {
@@ -1091,7 +1103,10 @@ static void fbcon_init(struct vc_data *vc, int init)
 
 	ops = info->fbcon_par;
 	ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);
-	p->con_rotate = initial_rotation;
+	if (initial_rotation != -1)
+		p->con_rotate = initial_rotation;
+	else
+		p->con_rotate = fbcon_platform_get_rotate(info);
 	set_blitting_type(vc, info);
 
 	cols = vc->vc_cols;
@@ -1299,7 +1314,7 @@ static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
 	struct fbcon_ops *ops = info->fbcon_par;
 
 	if (!fbcon_is_inactive(vc, info))
-		ops->clear_margins(vc, info, bottom_only);
+		ops->clear_margins(vc, info, margin_color, bottom_only);
 }
 
 static void fbcon_cursor(struct vc_data *vc, int mode)
@@ -3606,7 +3621,7 @@ static void fbcon_exit(void)
 	fbcon_has_exited = 1;
 }
 
-static int __init fb_console_init(void)
+void __init fb_console_init(void)
 {
 	int i;
 
@@ -3628,11 +3643,8 @@ static int __init fb_console_init(void)
 
 	console_unlock();
 	fbcon_start();
-	return 0;
 }
 
-fs_initcall(fb_console_init);
-
 #ifdef MODULE
 
 static void __exit fbcon_deinit_device(void)
@@ -3647,7 +3659,7 @@ static void __exit fbcon_deinit_device(void)
 	}
 }
 
-static void __exit fb_console_exit(void)
+void __exit fb_console_exit(void)
 {
 	console_lock();
 	fb_unregister_client(&fbcon_event_notifier);
@@ -3657,9 +3669,4 @@ static void __exit fb_console_exit(void)
 	do_unregister_con_driver(&fb_con);
 	console_unlock();
 }	
-
-module_exit(fb_console_exit);
-
 #endif
-
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/console/fbcon.h b/drivers/video/fbdev/core/fbcon.h
index 7aaa4eabbba0..18f3ac144237 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/fbdev/core/fbcon.h
@@ -60,7 +60,7 @@ struct fbcon_ops {
 		      const unsigned short *s, int count, int yy, int xx,
 		      int fg, int bg);
 	void (*clear_margins)(struct vc_data *vc, struct fb_info *info,
-			      int bottom_only);
+			      int color, int bottom_only);
 	void (*cursor)(struct vc_data *vc, struct fb_info *info, int mode,
 		       int softback_lines, int fg, int bg);
 	int  (*update_start)(struct fb_info *info);
@@ -261,5 +261,10 @@ extern void fbcon_set_rotate(struct fbcon_ops *ops);
 #define fbcon_set_rotate(x) do {} while(0)
 #endif /* CONFIG_FRAMEBUFFER_CONSOLE_ROTATION */
 
-#endif /* _VIDEO_FBCON_H */
+#ifdef CONFIG_DMI
+int fbcon_platform_get_rotate(struct fb_info *info);
+#else
+#define fbcon_platform_get_rotate(i) FB_ROTATE_UR
+#endif /* CONFIG_DMI */
 
+#endif /* _VIDEO_FBCON_H */
diff --git a/drivers/video/console/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c
index 5a3cbf6dff4d..37a8b0b22566 100644
--- a/drivers/video/console/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -189,7 +189,7 @@ static void ccw_putcs(struct vc_data *vc, struct fb_info *info,
 }
 
 static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info,
-			     int bottom_only)
+			      int color, int bottom_only)
 {
 	unsigned int cw = vc->vc_font.width;
 	unsigned int ch = vc->vc_font.height;
@@ -198,7 +198,7 @@ static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info,
 	unsigned int bs = vc->vc_rows*ch;
 	struct fb_fillrect region;
 
-	region.color = 0;
+	region.color = color;
 	region.rop = ROP_COPY;
 
 	if (rw && !bottom_only) {
@@ -418,7 +418,3 @@ void fbcon_rotate_ccw(struct fbcon_ops *ops)
 	ops->update_start = ccw_update_start;
 }
 EXPORT_SYMBOL(fbcon_rotate_ccw);
-
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Console Rotation (270 degrees) Support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/console/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c
index e7ee44db4e98..1888f8c866e8 100644
--- a/drivers/video/console/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -172,7 +172,7 @@ static void cw_putcs(struct vc_data *vc, struct fb_info *info,
 }
 
 static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
-			     int bottom_only)
+			     int color, int bottom_only)
 {
 	unsigned int cw = vc->vc_font.width;
 	unsigned int ch = vc->vc_font.height;
@@ -181,7 +181,7 @@ static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
 	unsigned int rs = info->var.yres - rw;
 	struct fb_fillrect region;
 
-	region.color = 0;
+	region.color = color;
 	region.rop = ROP_COPY;
 
 	if (rw && !bottom_only) {
@@ -401,7 +401,3 @@ void fbcon_rotate_cw(struct fbcon_ops *ops)
 	ops->update_start = cw_update_start;
 }
 EXPORT_SYMBOL(fbcon_rotate_cw);
-
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Console Rotation (90 degrees) Support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/fbdev/core/fbcon_dmi_quirks.c b/drivers/video/fbdev/core/fbcon_dmi_quirks.c
new file mode 100644
index 000000000000..6904e47d1e51
--- /dev/null
+++ b/drivers/video/fbdev/core/fbcon_dmi_quirks.c
@@ -0,0 +1,145 @@
+/*
+ *  fbcon_dmi_quirks.c -- DMI based quirk detection for fbcon
+ *
+ *	Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License.  See the file COPYING in the main directory of this archive for
+ *  more details.
+ */
+
+#include <linux/dmi.h>
+#include <linux/fb.h>
+#include <linux/kernel.h>
+#include "fbcon.h"
+
+/*
+ * Some x86 clamshell design devices use portrait tablet screens and a display
+ * engine which cannot rotate in hardware, so we need to rotate the fbcon to
+ * compensate. Unfortunately these (cheap) devices also typically have quite
+ * generic DMI data, so we match on a combination of DMI data, screen resolution
+ * and a list of known BIOS dates to avoid false positives.
+ */
+
+struct fbcon_dmi_rotate_data {
+	int width;
+	int height;
+	const char * const *bios_dates;
+	int rotate;
+};
+
+static const struct fbcon_dmi_rotate_data rotate_data_asus_t100ha = {
+	.width = 800,
+	.height = 1280,
+	.rotate = FB_ROTATE_CCW,
+};
+
+static const struct fbcon_dmi_rotate_data rotate_data_gpd_pocket = {
+	.width = 1200,
+	.height = 1920,
+	.bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
+		"07/05/2017", "08/07/2017", NULL },
+	.rotate = FB_ROTATE_CW,
+};
+
+static const struct fbcon_dmi_rotate_data rotate_data_gpd_win = {
+	.width = 720,
+	.height = 1280,
+	.bios_dates = (const char * const []){
+		"10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
+		"02/21/2017", "03/20/2017", "05/25/2017", NULL },
+	.rotate = FB_ROTATE_CW,
+};
+
+static const struct fbcon_dmi_rotate_data rotate_data_itworks_tw891 = {
+	.width = 800,
+	.height = 1280,
+	.bios_dates = (const char * const []){ "10/16/2015", NULL },
+	.rotate = FB_ROTATE_CW,
+};
+
+static const struct fbcon_dmi_rotate_data rotate_data_vios_lth17 = {
+	.width = 800,
+	.height = 1280,
+	.rotate = FB_ROTATE_CW,
+};
+
+static const struct dmi_system_id rotate_data[] = {
+	{	/* Asus T100HA */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
+		},
+		.driver_data = (void *)&rotate_data_asus_t100ha,
+	}, {	/*
+		 * GPD Pocket, note that the the DMI data is less generic then
+		 * it seems, devices with a board-vendor of "AMI Corporation"
+		 * are quite rare, as are devices which have both board- *and*
+		 * product-id set to "Default String"
+		 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+		  DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		},
+		.driver_data = (void *)&rotate_data_gpd_pocket,
+	}, {	/* GPD Win (same note on DMI match as GPD Pocket) */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
+		  DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
+		},
+		.driver_data = (void *)&rotate_data_gpd_win,
+	}, {	/* I.T.Works TW891 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
+		},
+		.driver_data = (void *)&rotate_data_itworks_tw891,
+	}, {	/* VIOS LTH17 */
+		.matches = {
+		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
+		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
+		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "VIOS"),
+		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "LTH17"),
+		},
+		.driver_data = (void *)&rotate_data_vios_lth17,
+	},
+	{}
+};
+
+int fbcon_platform_get_rotate(struct fb_info *info)
+{
+	const struct dmi_system_id *match;
+	const struct fbcon_dmi_rotate_data *data;
+	const char *bios_date;
+	int i;
+
+	for (match = dmi_first_match(rotate_data);
+	     match;
+	     match = dmi_first_match(match + 1)) {
+		data = match->driver_data;
+
+		if (data->width != info->var.xres ||
+		    data->height != info->var.yres)
+			continue;
+
+		if (!data->bios_dates)
+			return data->rotate;
+
+		bios_date = dmi_get_system_info(DMI_BIOS_DATE);
+		if (!bios_date)
+			continue;
+
+		for (i = 0; data->bios_dates[i]; i++) {
+			if (!strcmp(data->bios_dates[i], bios_date))
+				return data->rotate;
+		}
+	}
+
+	return FB_ROTATE_UR;
+}
diff --git a/drivers/video/console/fbcon_rotate.c b/drivers/video/fbdev/core/fbcon_rotate.c
index db6528f2d3f2..8a51e4d95cc5 100644
--- a/drivers/video/console/fbcon_rotate.c
+++ b/drivers/video/fbdev/core/fbcon_rotate.c
@@ -110,7 +110,3 @@ void fbcon_set_rotate(struct fbcon_ops *ops)
 	}
 }
 EXPORT_SYMBOL(fbcon_set_rotate);
-
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Console Rotation Support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/console/fbcon_rotate.h b/drivers/video/fbdev/core/fbcon_rotate.h
index e233444cda66..e233444cda66 100644
--- a/drivers/video/console/fbcon_rotate.h
+++ b/drivers/video/fbdev/core/fbcon_rotate.h
diff --git a/drivers/video/console/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c
index 19e3714abfe8..f98eee263597 100644
--- a/drivers/video/console/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -220,7 +220,7 @@ static void ud_putcs(struct vc_data *vc, struct fb_info *info,
 }
 
 static void ud_clear_margins(struct vc_data *vc, struct fb_info *info,
-			     int bottom_only)
+			     int color, int bottom_only)
 {
 	unsigned int cw = vc->vc_font.width;
 	unsigned int ch = vc->vc_font.height;
@@ -228,7 +228,7 @@ static void ud_clear_margins(struct vc_data *vc, struct fb_info *info,
 	unsigned int bh = info->var.yres - (vc->vc_rows*ch);
 	struct fb_fillrect region;
 
-	region.color = 0;
+	region.color = color;
 	region.rop = ROP_COPY;
 
 	if (rw && !bottom_only) {
@@ -446,7 +446,3 @@ void fbcon_rotate_ud(struct fbcon_ops *ops)
 	ops->update_start = ud_update_start;
 }
 EXPORT_SYMBOL(fbcon_rotate_ud);
-
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Console Rotation (180 degrees) Support");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c
index 25e862c487f6..f741ba8df01b 100644
--- a/drivers/video/fbdev/core/fbmem.c
+++ b/drivers/video/fbdev/core/fbmem.c
@@ -32,6 +32,7 @@
 #include <linux/device.h>
 #include <linux/efi.h>
 #include <linux/fb.h>
+#include <linux/fbcon.h>
 #include <linux/mem_encrypt.h>
 
 #include <asm/fb.h>
@@ -316,7 +317,7 @@ static void fb_set_logo(struct fb_info *info,
 		for (i = 0; i < logo->height; i++) {
 			for (j = 0; j < logo->width; src++) {
 				d = *src ^ xor;
-				for (k = 7; k >= 0; k--) {
+				for (k = 7; k >= 0 && j < logo->width; k--) {
 					*dst++ = ((d >> k) & 1) ? fg : 0;
 					j++;
 				}
@@ -463,7 +464,7 @@ static int fb_show_logo_line(struct fb_info *info, int rotate,
 
 	/* Return if the frame buffer is not mapped or suspended */
 	if (logo == NULL || info->state != FBINFO_STATE_RUNNING ||
-	    info->flags & FBINFO_MODULE)
+	    info->fbops->owner)
 		return 0;
 
 	image.depth = 8;
@@ -601,7 +602,7 @@ int fb_prepare_logo(struct fb_info *info, int rotate)
 	memset(&fb_logo, 0, sizeof(struct logo_data));
 
 	if (info->flags & FBINFO_MISC_TILEBLITTING ||
-	    info->flags & FBINFO_MODULE)
+	    info->fbops->owner)
 		return 0;
 
 	if (info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
@@ -1892,6 +1893,9 @@ fbmem_init(void)
 		fb_class = NULL;
 		goto err_class;
 	}
+
+	fb_console_init();
+
 	return 0;
 
 err_class:
@@ -1906,6 +1910,8 @@ module_init(fbmem_init);
 static void __exit
 fbmem_exit(void)
 {
+	fb_console_exit();
+
 	remove_proc_entry("fb", NULL);
 	class_destroy(fb_class);
 	unregister_chrdev(FB_MAJOR, "fb");
diff --git a/drivers/video/fbdev/core/fbmon.c b/drivers/video/fbdev/core/fbmon.c
index 41d7979d81c5..2b2d67328514 100644
--- a/drivers/video/fbdev/core/fbmon.c
+++ b/drivers/video/fbdev/core/fbmon.c
@@ -1479,8 +1479,8 @@ int of_get_fb_videomode(struct device_node *np, struct fb_videomode *fb,
 	if (ret)
 		return ret;
 
-	pr_debug("%s: got %dx%d display mode from %s\n",
-		of_node_full_name(np), vm.hactive, vm.vactive, np->name);
+	pr_debug("%pOF: got %dx%d display mode from %s\n",
+		np, vm.hactive, vm.vactive, np->name);
 	dump_fb_videomode(fb);
 
 	return 0;
diff --git a/drivers/video/console/softcursor.c b/drivers/video/fbdev/core/softcursor.c
index 46dd8f5d2e9e..fc93f254498e 100644
--- a/drivers/video/console/softcursor.c
+++ b/drivers/video/fbdev/core/softcursor.c
@@ -76,7 +76,3 @@ int soft_cursor(struct fb_info *info, struct fb_cursor *cursor)
 }
 
 EXPORT_SYMBOL(soft_cursor);
-
-MODULE_AUTHOR("James Simmons <jsimmons@users.sf.net>");
-MODULE_DESCRIPTION("Generic software cursor");
-MODULE_LICENSE("GPL");
diff --git a/drivers/video/console/tileblit.c b/drivers/video/fbdev/core/tileblit.c
index 15e8e1a89c45..93390312957f 100644
--- a/drivers/video/console/tileblit.c
+++ b/drivers/video/fbdev/core/tileblit.c
@@ -74,7 +74,7 @@ static void tile_putcs(struct vc_data *vc, struct fb_info *info,
 }
 
 static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
-			       int bottom_only)
+			       int color, int bottom_only)
 {
 	return;
 }
@@ -152,8 +152,3 @@ void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info)
 }
 
 EXPORT_SYMBOL(fbcon_set_tileops);
-
-MODULE_AUTHOR("Antonino Daplas <adaplas@pol.net>");
-MODULE_DESCRIPTION("Tile Blitting Operation");
-MODULE_LICENSE("GPL");
-
diff --git a/drivers/video/fbdev/cyber2000fb.c b/drivers/video/fbdev/cyber2000fb.c
index 99acf538a8b8..9a5751cb4e16 100644
--- a/drivers/video/fbdev/cyber2000fb.c
+++ b/drivers/video/fbdev/cyber2000fb.c
@@ -1336,7 +1336,7 @@ static void cyber2000fb_i2c_unregister(struct cfb_info *cfb)
  * These parameters give
  * 640x480, hsync 31.5kHz, vsync 60Hz
  */
-static struct fb_videomode cyber2000fb_default_mode = {
+static const struct fb_videomode cyber2000fb_default_mode = {
 	.refresh	= 60,
 	.xres		= 640,
 	.yres		= 480,
diff --git a/drivers/video/fbdev/da8xx-fb.c b/drivers/video/fbdev/da8xx-fb.c
index c229b1a0d13b..a74096c53cb5 100644
--- a/drivers/video/fbdev/da8xx-fb.c
+++ b/drivers/video/fbdev/da8xx-fb.c
@@ -1341,7 +1341,7 @@ static int fb_probe(struct platform_device *device)
 {
 	struct da8xx_lcdc_platform_data *fb_pdata =
 						dev_get_platdata(&device->dev);
-	static struct resource *lcdc_regs;
+	struct resource *lcdc_regs;
 	struct lcd_ctrl_config *lcd_cfg;
 	struct fb_videomode *lcdc_info;
 	struct fb_info *da8xx_fb_info;
diff --git a/drivers/video/fbdev/dnfb.c b/drivers/video/fbdev/dnfb.c
index 3526899da61b..7b1492d34e98 100644
--- a/drivers/video/fbdev/dnfb.c
+++ b/drivers/video/fbdev/dnfb.c
@@ -126,7 +126,7 @@ struct fb_var_screeninfo dnfb_var = {
 	.vmode		= FB_VMODE_NONINTERLACED,
 };
 
-static struct fb_fix_screeninfo dnfb_fix = {
+static const struct fb_fix_screeninfo dnfb_fix = {
 	.id		= "Apollo Mono",
 	.smem_start	= (FRAME_BUFFER_START + IO_BASE),
 	.smem_len	= FRAME_BUFFER_LEN,
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 3a010641f630..d1bf9c2a78a7 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Framebuffer driver for EFI/UEFI based system
  *
diff --git a/drivers/video/fbdev/fb-puv3.c b/drivers/video/fbdev/fb-puv3.c
index 88fa2e70a0bb..d9e816d53531 100644
--- a/drivers/video/fbdev/fb-puv3.c
+++ b/drivers/video/fbdev/fb-puv3.c
@@ -69,7 +69,7 @@ static const struct fb_videomode unifb_modes[] = {
 	  0, FB_VMODE_NONINTERLACED, FB_MODE_IS_VESA },
 };
 
-static struct fb_var_screeninfo unifb_default = {
+static const struct fb_var_screeninfo unifb_default = {
 	.xres =		640,
 	.yres =		480,
 	.xres_virtual =	640,
diff --git a/drivers/video/fbdev/ffb.c b/drivers/video/fbdev/ffb.c
index dda31e0a45af..6b1915872af1 100644
--- a/drivers/video/fbdev/ffb.c
+++ b/drivers/video/fbdev/ffb.c
@@ -997,9 +997,9 @@ static int ffb_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: %s at %016lx, type %d, "
+	printk(KERN_INFO "%pOF: %s at %016lx, type %d, "
 	       "DAC pnum[%x] rev[%d] manuf_rev[%d]\n",
-	       dp->full_name,
+	       dp,
 	       ((par->flags & FFB_FLAG_AFB) ? "AFB" : "FFB"),
 	       par->physbase, par->board_type,
 	       dac_pnum, dac_rev, dac_mrev);
diff --git a/drivers/video/fbdev/fm2fb.c b/drivers/video/fbdev/fm2fb.c
index e69d47af9932..ac7a4ebfd390 100644
--- a/drivers/video/fbdev/fm2fb.c
+++ b/drivers/video/fbdev/fm2fb.c
@@ -213,7 +213,7 @@ static int fm2fb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 
 static int fm2fb_probe(struct zorro_dev *z, const struct zorro_device_id *id);
 
-static struct zorro_device_id fm2fb_devices[] = {
+static const struct zorro_device_id fm2fb_devices[] = {
 	{ ZORRO_PROD_BSC_FRAMEMASTER_II },
 	{ ZORRO_PROD_HELFRICH_RAINBOW_II },
 	{ 0 }
diff --git a/drivers/video/fbdev/geode/Makefile b/drivers/video/fbdev/geode/Makefile
index 5c98da126883..16ba8a71dc52 100644
--- a/drivers/video/fbdev/geode/Makefile
+++ b/drivers/video/fbdev/geode/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Geode family framebuffer drivers
 
 obj-$(CONFIG_FB_GEODE_GX1) += gx1fb.o
diff --git a/drivers/video/fbdev/geode/gxfb_core.c b/drivers/video/fbdev/geode/gxfb_core.c
index ec9fc9ac23de..f4f76373b2a8 100644
--- a/drivers/video/fbdev/geode/gxfb_core.c
+++ b/drivers/video/fbdev/geode/gxfb_core.c
@@ -474,7 +474,7 @@ static void gxfb_remove(struct pci_dev *pdev)
 	framebuffer_release(info);
 }
 
-static struct pci_device_id gxfb_id_table[] = {
+static const struct pci_device_id gxfb_id_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NS, PCI_DEVICE_ID_NS_GX_VIDEO) },
 	{ 0, }
 };
diff --git a/drivers/video/fbdev/grvga.c b/drivers/video/fbdev/grvga.c
index b471f92969b1..8fc8f46dadeb 100644
--- a/drivers/video/fbdev/grvga.c
+++ b/drivers/video/fbdev/grvga.c
@@ -70,7 +70,7 @@ static const struct fb_videomode grvga_modedb[] = {
     }
  };
 
-static struct fb_fix_screeninfo grvga_fix = {
+static const struct fb_fix_screeninfo grvga_fix = {
 	.id =		"AG SVGACTRL",
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.visual =       FB_VISUAL_PSEUDOCOLOR,
diff --git a/drivers/video/fbdev/i810/Makefile b/drivers/video/fbdev/i810/Makefile
index 96e08c8ded97..3e466510fe05 100644
--- a/drivers/video/fbdev/i810/Makefile
+++ b/drivers/video/fbdev/i810/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Intel 810/815 framebuffer driver
 #
diff --git a/drivers/video/fbdev/i810/i810_main.c b/drivers/video/fbdev/i810/i810_main.c
index 2488baab7c89..d18f7b31932c 100644
--- a/drivers/video/fbdev/i810/i810_main.c
+++ b/drivers/video/fbdev/i810/i810_main.c
@@ -107,7 +107,7 @@ static const char * const i810_pci_list[] = {
 	"Intel(R) 815 (Internal Graphics with AGP) Framebuffer Device"
 };
 
-static struct pci_device_id i810fb_pci_tbl[] = {
+static const struct pci_device_id i810fb_pci_tbl[] = {
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG1,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82810_IG3,
@@ -1542,7 +1542,7 @@ static int i810fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 	return 0;
 }
 
-static struct fb_ops i810fb_ops = {
+static const struct fb_ops i810fb_ops = {
 	.owner =             THIS_MODULE,
 	.fb_open =           i810fb_open,
 	.fb_release =        i810fb_release,
diff --git a/drivers/video/fbdev/imsttfb.c b/drivers/video/fbdev/imsttfb.c
index 4363c64d74e8..ecdcf358ad5e 100644
--- a/drivers/video/fbdev/imsttfb.c
+++ b/drivers/video/fbdev/imsttfb.c
@@ -1318,7 +1318,7 @@ imsttfb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 	}
 }
 
-static struct pci_device_id imsttfb_pci_tbl[] = {
+static const struct pci_device_id imsttfb_pci_tbl[] = {
 	{ PCI_VENDOR_ID_IMS, PCI_DEVICE_ID_IMS_TT128,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, IBM },
 	{ PCI_VENDOR_ID_IMS, PCI_DEVICE_ID_IMS_TT3D,
diff --git a/drivers/video/fbdev/intelfb/Makefile b/drivers/video/fbdev/intelfb/Makefile
index f7d631ebee8e..7ff2debb31af 100644
--- a/drivers/video/fbdev/intelfb/Makefile
+++ b/drivers/video/fbdev/intelfb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FB_INTEL) += intelfb.o
 
 intelfb-y := intelfbdrv.o intelfbhw.o
diff --git a/drivers/video/fbdev/intelfb/intelfb.h b/drivers/video/fbdev/intelfb/intelfb.h
index 37f8339ea88c..b54db05f028d 100644
--- a/drivers/video/fbdev/intelfb/intelfb.h
+++ b/drivers/video/fbdev/intelfb/intelfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INTELFB_H
 #define _INTELFB_H
 
diff --git a/drivers/video/fbdev/intelfb/intelfbdrv.c b/drivers/video/fbdev/intelfb/intelfbdrv.c
index ffc391208b27..d7463a2a5d83 100644
--- a/drivers/video/fbdev/intelfb/intelfbdrv.c
+++ b/drivers/video/fbdev/intelfb/intelfbdrv.c
@@ -173,7 +173,7 @@ static int intelfb_set_fbinfo(struct intelfb_info *dinfo);
 #define INTELFB_CLASS_MASK 0
 #endif
 
-static struct pci_device_id intelfb_pci_table[] = {
+static const struct pci_device_id intelfb_pci_table[] = {
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G },
 	{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM },
diff --git a/drivers/video/fbdev/kyro/fbdev.c b/drivers/video/fbdev/kyro/fbdev.c
index f77478fb3d14..a7bd9f25911b 100644
--- a/drivers/video/fbdev/kyro/fbdev.c
+++ b/drivers/video/fbdev/kyro/fbdev.c
@@ -633,7 +633,7 @@ static int kyrofb_ioctl(struct fb_info *info,
 	return 0;
 }
 
-static struct pci_device_id kyrofb_pci_tbl[] = {
+static const struct pci_device_id kyrofb_pci_tbl[] = {
 	{ PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ 0, }
diff --git a/drivers/video/fbdev/leo.c b/drivers/video/fbdev/leo.c
index 62e59dc90ee6..71862188f528 100644
--- a/drivers/video/fbdev/leo.c
+++ b/drivers/video/fbdev/leo.c
@@ -619,8 +619,8 @@ static int leo_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: leo at %lx:%lx\n",
-	       dp->full_name,
+	printk(KERN_INFO "%pOF: leo at %lx:%lx\n",
+	       dp,
 	       par->which_io, info->fix.smem_start);
 
 	return 0;
diff --git a/drivers/video/fbdev/matrox/g450_pll.h b/drivers/video/fbdev/matrox/g450_pll.h
index aac615d18440..5303336c6547 100644
--- a/drivers/video/fbdev/matrox/g450_pll.h
+++ b/drivers/video/fbdev/matrox/g450_pll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __G450_PLL_H__
 #define __G450_PLL_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_DAC1064.h b/drivers/video/fbdev/matrox/matroxfb_DAC1064.h
index 1e6e45b57b78..3b2a6fd35fff 100644
--- a/drivers/video/fbdev/matrox/matroxfb_DAC1064.h
+++ b/drivers/video/fbdev/matrox/matroxfb_DAC1064.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_DAC1064_H__
 #define __MATROXFB_DAC1064_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_Ti3026.h b/drivers/video/fbdev/matrox/matroxfb_Ti3026.h
index 27872aaa0a17..faee149d0ba0 100644
--- a/drivers/video/fbdev/matrox/matroxfb_Ti3026.h
+++ b/drivers/video/fbdev/matrox/matroxfb_Ti3026.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_TI3026_H__
 #define __MATROXFB_TI3026_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_accel.h b/drivers/video/fbdev/matrox/matroxfb_accel.h
index 1e418e62c22d..a7aa9a1d26c0 100644
--- a/drivers/video/fbdev/matrox/matroxfb_accel.h
+++ b/drivers/video/fbdev/matrox/matroxfb_accel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_ACCEL_H__
 #define __MATROXFB_ACCEL_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.c b/drivers/video/fbdev/matrox/matroxfb_base.c
index f6a0b9af97a9..b9b284d79631 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.c
+++ b/drivers/video/fbdev/matrox/matroxfb_base.c
@@ -1198,7 +1198,7 @@ static int matroxfb_blank(int blank, struct fb_info *info)
 	return 0;
 }
 
-static struct fb_ops matroxfb_ops = {
+static const struct fb_ops matroxfb_ops = {
 	.owner =	THIS_MODULE,
 	.fb_open =	matroxfb_open,
 	.fb_release =	matroxfb_release,
@@ -1573,14 +1573,14 @@ static struct board {
 		NULL}};
 
 #ifndef MODULE
-static struct fb_videomode defaultmode = {
+static const struct fb_videomode defaultmode = {
 	/* 640x480 @ 60Hz, 31.5 kHz */
 	NULL, 60, 640, 480, 39721, 40, 24, 32, 11, 96, 2,
 	0, FB_VMODE_NONINTERLACED
 };
-#endif /* !MODULE */
 
 static int hotplug = 0;
+#endif /* !MODULE */
 
 static void setDefaultOutputs(struct matrox_fb_info *minfo)
 {
@@ -1623,7 +1623,7 @@ static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
 	unsigned int memsize;
 	int err;
 
-	static struct pci_device_id intel_82437[] = {
+	static const struct pci_device_id intel_82437[] = {
 		{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82437) },
 		{ },
 	};
@@ -1794,9 +1794,7 @@ static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
 	minfo->fbops = matroxfb_ops;
 	minfo->fbcon.fbops = &minfo->fbops;
 	minfo->fbcon.pseudo_palette = minfo->cmap;
-	/* after __init time we are like module... no logo */
-	minfo->fbcon.flags = hotplug ? FBINFO_FLAG_MODULE : FBINFO_FLAG_DEFAULT;
-	minfo->fbcon.flags |= FBINFO_PARTIAL_PAN_OK | 	 /* Prefer panning for scroll under MC viewer/edit */
+	minfo->fbcon.flags = FBINFO_PARTIAL_PAN_OK | 	 /* Prefer panning for scroll under MC viewer/edit */
 				      FBINFO_HWACCEL_COPYAREA |  /* We have hw-assisted bmove */
 				      FBINFO_HWACCEL_FILLRECT |  /* And fillrect */
 				      FBINFO_HWACCEL_IMAGEBLIT | /* And imageblit */
@@ -2116,7 +2114,7 @@ static void pci_remove_matrox(struct pci_dev* pdev) {
 	matroxfb_remove(minfo, 1);
 }
 
-static struct pci_device_id matroxfb_devices[] = {
+static const struct pci_device_id matroxfb_devices[] = {
 #ifdef CONFIG_FB_MATROX_MILLENIUM
 	{PCI_VENDOR_ID_MATROX,	PCI_DEVICE_ID_MATROX_MIL,
 		PCI_ANY_ID,	PCI_ANY_ID,	0, 0, 0},
diff --git a/drivers/video/fbdev/matrox/matroxfb_base.h b/drivers/video/fbdev/matrox/matroxfb_base.h
index 7a90ea2c4613..f85ad25659e5 100644
--- a/drivers/video/fbdev/matrox/matroxfb_base.h
+++ b/drivers/video/fbdev/matrox/matroxfb_base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Hardware accelerated Matrox Millennium I, II, Mystique, G100, G200, G400 and G450
diff --git a/drivers/video/fbdev/matrox/matroxfb_crtc2.h b/drivers/video/fbdev/matrox/matroxfb_crtc2.h
index 1005582e843e..23e90e210905 100644
--- a/drivers/video/fbdev/matrox/matroxfb_crtc2.h
+++ b/drivers/video/fbdev/matrox/matroxfb_crtc2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_CRTC2_H__
 #define __MATROXFB_CRTC2_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_g450.h b/drivers/video/fbdev/matrox/matroxfb_g450.h
index 3a3e654444b8..b5f17b86eae5 100644
--- a/drivers/video/fbdev/matrox/matroxfb_g450.h
+++ b/drivers/video/fbdev/matrox/matroxfb_g450.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_G450_H__
 #define __MATROXFB_G450_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_maven.h b/drivers/video/fbdev/matrox/matroxfb_maven.h
index 99eddec9f30c..f896b78836b1 100644
--- a/drivers/video/fbdev/matrox/matroxfb_maven.h
+++ b/drivers/video/fbdev/matrox/matroxfb_maven.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_MAVEN_H__
 #define __MATROXFB_MAVEN_H__
 
diff --git a/drivers/video/fbdev/matrox/matroxfb_misc.h b/drivers/video/fbdev/matrox/matroxfb_misc.h
index 351c823f1f74..9cb6686d309e 100644
--- a/drivers/video/fbdev/matrox/matroxfb_misc.h
+++ b/drivers/video/fbdev/matrox/matroxfb_misc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MATROXFB_MISC_H__
 #define __MATROXFB_MISC_H__
 
diff --git a/drivers/video/fbdev/maxinefb.c b/drivers/video/fbdev/maxinefb.c
index cab7333208ea..5bb1b5c308a7 100644
--- a/drivers/video/fbdev/maxinefb.c
+++ b/drivers/video/fbdev/maxinefb.c
@@ -39,7 +39,7 @@
 
 static struct fb_info fb_info;
 
-static struct fb_var_screeninfo maxinefb_defined = {
+static const struct fb_var_screeninfo maxinefb_defined = {
 	.xres =		1024,
 	.yres =		768,
 	.xres_virtual =	1024,
diff --git a/drivers/video/fbdev/mb862xx/mb862xx_reg.h b/drivers/video/fbdev/mb862xx/mb862xx_reg.h
index 9df48b8edc94..e6d0513958c2 100644
--- a/drivers/video/fbdev/mb862xx/mb862xx_reg.h
+++ b/drivers/video/fbdev/mb862xx/mb862xx_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Fujitsu MB862xx Graphics Controller Registers/Bits
  */
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb.h b/drivers/video/fbdev/mb862xx/mb862xxfb.h
index 8550630c1e01..50bc9b584ca1 100644
--- a/drivers/video/fbdev/mb862xx/mb862xxfb.h
+++ b/drivers/video/fbdev/mb862xx/mb862xxfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MB862XX_H__
 #define __MB862XX_H__
 
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h
index 96a2dfef0f60..3a2549f9a48f 100644
--- a/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h
+++ b/drivers/video/fbdev/mb862xx/mb862xxfb_accel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MB826XXFB_ACCEL_H__
 #define __MB826XXFB_ACCEL_H__
 
diff --git a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
index f9ec5c0484fa..cd372527c9e4 100644
--- a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
+++ b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
@@ -982,7 +982,7 @@ static inline int mb862xx_pci_gdc_init(struct mb862xxfb_par *par)
 #define CHIP_ID(id)	\
 	{ PCI_DEVICE(PCI_VENDOR_ID_FUJITSU_LIMITED, id) }
 
-static struct pci_device_id mb862xx_pci_tbl[] = {
+static const struct pci_device_id mb862xx_pci_tbl[] = {
 	/* MB86295/MB86296 */
 	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALP),
 	CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALPA),
diff --git a/drivers/video/fbdev/mbx/mbxdebugfs.c b/drivers/video/fbdev/mbx/mbxdebugfs.c
index 2528d3e609a4..2bd328883178 100644
--- a/drivers/video/fbdev/mbx/mbxdebugfs.c
+++ b/drivers/video/fbdev/mbx/mbxdebugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/debugfs.h>
 #include <linux/slab.h>
 
diff --git a/drivers/video/fbdev/mbx/mbxfb.c b/drivers/video/fbdev/mbx/mbxfb.c
index 698df9543e30..539b85da0897 100644
--- a/drivers/video/fbdev/mbx/mbxfb.c
+++ b/drivers/video/fbdev/mbx/mbxfb.c
@@ -79,7 +79,7 @@ struct mbxfb_info {
 
 };
 
-static struct fb_var_screeninfo mbxfb_default = {
+static const struct fb_var_screeninfo mbxfb_default = {
 	.xres = 640,
 	.yres = 480,
 	.xres_virtual = 640,
@@ -102,7 +102,7 @@ static struct fb_var_screeninfo mbxfb_default = {
 	.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 };
 
-static struct fb_fix_screeninfo mbxfb_fix = {
+static const struct fb_fix_screeninfo mbxfb_fix = {
 	.id = "MBX",
 	.type = FB_TYPE_PACKED_PIXELS,
 	.visual = FB_VISUAL_TRUECOLOR,
diff --git a/drivers/video/fbdev/mbx/reg_bits.h b/drivers/video/fbdev/mbx/reg_bits.h
index 5f14b4befd71..6607f353639b 100644
--- a/drivers/video/fbdev/mbx/reg_bits.h
+++ b/drivers/video/fbdev/mbx/reg_bits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REG_BITS_2700G_
 #define __REG_BITS_2700G_
 
diff --git a/drivers/video/fbdev/mbx/regs.h b/drivers/video/fbdev/mbx/regs.h
index 063099d48839..591fc9d26084 100644
--- a/drivers/video/fbdev/mbx/regs.h
+++ b/drivers/video/fbdev/mbx/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REGS_2700G_
 #define __REGS_2700G_
 
diff --git a/drivers/video/fbdev/mmp/panel/Kconfig b/drivers/video/fbdev/mmp/panel/Kconfig
index 4b2c4f457b11..808890f7064b 100644
--- a/drivers/video/fbdev/mmp/panel/Kconfig
+++ b/drivers/video/fbdev/mmp/panel/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config MMP_PANEL_TPOHVGA
 	bool "tpohvga panel TJ032MD01BW support"
 	depends on SPI_MASTER
diff --git a/drivers/video/fbdev/neofb.c b/drivers/video/fbdev/neofb.c
index db023a97d1ea..5d3a444083f7 100644
--- a/drivers/video/fbdev/neofb.c
+++ b/drivers/video/fbdev/neofb.c
@@ -2138,7 +2138,7 @@ static void neofb_remove(struct pci_dev *dev)
 	}
 }
 
-static struct pci_device_id neofb_devices[] = {
+static const struct pci_device_id neofb_devices[] = {
 	{PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2070,
 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2070},
 
diff --git a/drivers/video/fbdev/nvidia/Makefile b/drivers/video/fbdev/nvidia/Makefile
index 917d3eb05feb..cdd6e8ac454a 100644
--- a/drivers/video/fbdev/nvidia/Makefile
+++ b/drivers/video/fbdev/nvidia/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the nVidia framebuffer driver
 #
diff --git a/drivers/video/fbdev/nvidia/nv_proto.h b/drivers/video/fbdev/nvidia/nv_proto.h
index 878a5ce02299..fb9c5ebf2958 100644
--- a/drivers/video/fbdev/nvidia/nv_proto.h
+++ b/drivers/video/fbdev/nvidia/nv_proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_proto.h,v 1.10 2003/07/31 20:24:29 mvojkovi Exp $ */
 
 #ifndef __NV_PROTO_H__
diff --git a/drivers/video/fbdev/nvidia/nv_type.h b/drivers/video/fbdev/nvidia/nv_type.h
index 6ff321a36813..d7a1d4363d5f 100644
--- a/drivers/video/fbdev/nvidia/nv_type.h
+++ b/drivers/video/fbdev/nvidia/nv_type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NV_TYPE_H__
 #define __NV_TYPE_H__
 
diff --git a/drivers/video/fbdev/nvidia/nvidia.c b/drivers/video/fbdev/nvidia/nvidia.c
index ce7dab7299fe..418a2d0d06a9 100644
--- a/drivers/video/fbdev/nvidia/nvidia.c
+++ b/drivers/video/fbdev/nvidia/nvidia.c
@@ -55,7 +55,7 @@
 /* HW cursor parameters */
 #define MAX_CURS		32
 
-static struct pci_device_id nvidiafb_pci_tbl[] = {
+static const struct pci_device_id nvidiafb_pci_tbl[] = {
 	{PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 	 PCI_BASE_CLASS_DISPLAY << 16, 0xff0000, 0},
 	{ 0, }
diff --git a/drivers/video/fbdev/offb.c b/drivers/video/fbdev/offb.c
index 9be884b0c778..90d38de34479 100644
--- a/drivers/video/fbdev/offb.c
+++ b/drivers/video/fbdev/offb.c
@@ -383,7 +383,7 @@ static void offb_init_palette_hacks(struct fb_info *info, struct device_node *dp
 		FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_STATIC_PSEUDOCOLOR;
 }
 
-static void __init offb_init_fb(const char *name, const char *full_name,
+static void __init offb_init_fb(const char *name,
 				int width, int height, int depth,
 				int pitch, unsigned long address,
 				int foreign_endian, struct device_node *dp)
@@ -402,14 +402,13 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 	       "Using unsupported %dx%d %s at %lx, depth=%d, pitch=%d\n",
 	       width, height, name, address, depth, pitch);
 	if (depth != 8 && depth != 15 && depth != 16 && depth != 32) {
-		printk(KERN_ERR "%s: can't use depth = %d\n", full_name,
-		       depth);
+		printk(KERN_ERR "%pOF: can't use depth = %d\n", dp, depth);
 		release_mem_region(res_start, res_size);
 		return;
 	}
 
 	info = framebuffer_alloc(sizeof(u32) * 16, NULL);
-	
+
 	if (info == 0) {
 		release_mem_region(res_start, res_size);
 		return;
@@ -515,7 +514,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 	if (register_framebuffer(info) < 0)
 		goto out_err;
 
-	fb_info(info, "Open Firmware frame buffer device on %s\n", full_name);
+	fb_info(info, "Open Firmware frame buffer device on %pOF\n", dp);
 	return;
 
 out_err:
@@ -644,7 +643,6 @@ static void __init offb_init_nodriver(struct device_node *dp, int no_real_node)
 		if (strcmp(dp->name, "valkyrie") == 0)
 			address += 0x1000;
 		offb_init_fb(no_real_node ? "bootx" : dp->name,
-			     no_real_node ? "display" : dp->full_name,
 			     width, height, depth, pitch, address,
 			     foreign_endian, no_real_node ? NULL : dp);
 	}
diff --git a/drivers/video/fbdev/omap/Makefile b/drivers/video/fbdev/omap/Makefile
index 732e0718be53..daaa73a94e7f 100644
--- a/drivers/video/fbdev/omap/Makefile
+++ b/drivers/video/fbdev/omap/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the OMAP1 framebuffer device driver
 #
diff --git a/drivers/video/fbdev/omap/lcd_mipid.c b/drivers/video/fbdev/omap/lcd_mipid.c
index df9e6ebcfad5..e3a85432f926 100644
--- a/drivers/video/fbdev/omap/lcd_mipid.c
+++ b/drivers/video/fbdev/omap/lcd_mipid.c
@@ -496,7 +496,7 @@ static void mipid_cleanup(struct lcd_panel *panel)
 		mipid_esd_stop_check(md);
 }
 
-static struct lcd_panel mipid_panel = {
+static const struct lcd_panel mipid_panel = {
 	.config		= OMAP_LCDC_PANEL_TFT,
 
 	.bpp		= 16,
diff --git a/drivers/video/fbdev/omap/lcdc.h b/drivers/video/fbdev/omap/lcdc.h
index 845222270db3..8a7607d861c1 100644
--- a/drivers/video/fbdev/omap/lcdc.h
+++ b/drivers/video/fbdev/omap/lcdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LCDC_H
 #define LCDC_H
 
diff --git a/drivers/video/fbdev/omap2/omapfb/Makefile b/drivers/video/fbdev/omap2/omapfb/Makefile
index ad68ecf141af..602edfed09df 100644
--- a/drivers/video/fbdev/omap2/omapfb/Makefile
+++ b/drivers/video/fbdev/omap2/omapfb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_OMAP2_VRFB) += vrfb.o
 obj-y += dss/
 obj-y += displays/
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/Makefile b/drivers/video/fbdev/omap2/omapfb/displays/Makefile
index 4f7459272256..f801762ce455 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/Makefile
+++ b/drivers/video/fbdev/omap2/omapfb/displays/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FB_OMAP2_ENCODER_OPA362) += encoder-opa362.o
 obj-$(CONFIG_FB_OMAP2_ENCODER_TFP410) += encoder-tfp410.o
 obj-$(CONFIG_FB_OMAP2_ENCODER_TPD12S015) += encoder-tpd12s015.o
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
index f14691ce8d02..6cd759c01037 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-lgphilips-lb035q02.c
@@ -18,7 +18,7 @@
 
 #include <video/omapfb_dss.h>
 
-static struct omap_video_timings lb035q02_timings = {
+static const struct omap_video_timings lb035q02_timings = {
 	.x_res = 320,
 	.y_res = 240,
 
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
index 468560a6daae..f2c2fef3db74 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-sony-acx565akm.c
@@ -509,7 +509,7 @@ static struct attribute *bldev_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group bldev_attr_group = {
+static const struct attribute_group bldev_attr_group = {
 	.attrs = bldev_attrs,
 };
 
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c
index b529a8c2b652..57e9e146ff74 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td028ttec1.c
@@ -41,7 +41,7 @@ struct panel_drv_data {
 	struct spi_device *spi_dev;
 };
 
-static struct omap_video_timings td028ttec1_panel_timings = {
+static const struct omap_video_timings td028ttec1_panel_timings = {
 	.x_res		= 480,
 	.y_res		= 640,
 	.pixelclock	= 22153000,
diff --git a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
index 51e628b85f4a..ea8c79a42b41 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/panel-tpo-td043mtea1.c
@@ -282,7 +282,7 @@ static struct attribute *tpo_td043_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group tpo_td043_attr_group = {
+static const struct attribute_group tpo_td043_attr_group = {
 	.attrs = tpo_td043_attrs,
 };
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/Kconfig b/drivers/video/fbdev/omap2/omapfb/dss/Kconfig
index 27d220212870..6d0bb27e4f85 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/Kconfig
+++ b/drivers/video/fbdev/omap2/omapfb/dss/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 config FB_OMAP2_DSS_INIT
 	bool
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/Makefile b/drivers/video/fbdev/omap2/omapfb/dss/Makefile
index 02308e24f3ef..7318d5260e8d 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/Makefile
+++ b/drivers/video/fbdev/omap2/omapfb/dss/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FB_OMAP2_DSS_INIT) += omapdss-boot-init.o
 obj-$(CONFIG_FB_OMAP2_DSS) += omapdss.o
 # Core DSS files
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c
index d356a252ab4a..f1eb8b0f8a2a 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/dss-of.c
@@ -16,6 +16,7 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_graph.h>
 #include <linux/seq_file.h>
 
 #include <video/omapfb_dss.h>
@@ -128,7 +129,7 @@ static struct device_node *omapdss_of_get_remote_port(const struct device_node *
 {
 	struct device_node *np;
 
-	np = of_parse_phandle(node, "remote-endpoint", 0);
+	np = of_graph_get_remote_endpoint(node);
 	if (!np)
 		return NULL;
 
diff --git a/drivers/video/fbdev/omap2/omapfb/dss/hdmi_common.c b/drivers/video/fbdev/omap2/omapfb/dss/hdmi_common.c
index 189a5ad125a3..f13d7639826d 100644
--- a/drivers/video/fbdev/omap2/omapfb/dss/hdmi_common.c
+++ b/drivers/video/fbdev/omap2/omapfb/dss/hdmi_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #define DSS_SUBSYS_NAME "HDMI"
 
diff --git a/drivers/video/fbdev/p9100.c b/drivers/video/fbdev/p9100.c
index 1f6ee76af878..64de5cda541d 100644
--- a/drivers/video/fbdev/p9100.c
+++ b/drivers/video/fbdev/p9100.c
@@ -304,8 +304,8 @@ static int p9100_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: p9100 at %lx:%lx\n",
-	       dp->full_name,
+	printk(KERN_INFO "%pOF: p9100 at %lx:%lx\n",
+	       dp,
 	       par->which_io, info->fix.smem_start);
 
 	return 0;
diff --git a/drivers/video/fbdev/pm2fb.c b/drivers/video/fbdev/pm2fb.c
index 1a4070f719c2..bd6c2f5f6095 100644
--- a/drivers/video/fbdev/pm2fb.c
+++ b/drivers/video/fbdev/pm2fb.c
@@ -1732,7 +1732,7 @@ static void pm2fb_remove(struct pci_dev *pdev)
 	framebuffer_release(info);
 }
 
-static struct pci_device_id pm2fb_id_table[] = {
+static const struct pci_device_id pm2fb_id_table[] = {
 	{ PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TVP4020,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ PCI_VENDOR_ID_3DLABS, PCI_DEVICE_ID_3DLABS_PERMEDIA2,
diff --git a/drivers/video/fbdev/pm3fb.c b/drivers/video/fbdev/pm3fb.c
index 6ff5077a2e15..6130aa56a1e9 100644
--- a/drivers/video/fbdev/pm3fb.c
+++ b/drivers/video/fbdev/pm3fb.c
@@ -1479,7 +1479,7 @@ static void pm3fb_remove(struct pci_dev *dev)
 	}
 }
 
-static struct pci_device_id pm3fb_id_table[] = {
+static const struct pci_device_id pm3fb_id_table[] = {
 	{ PCI_VENDOR_ID_3DLABS, 0x0a,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ 0, }
diff --git a/drivers/video/fbdev/pmag-aa-fb.c b/drivers/video/fbdev/pmag-aa-fb.c
index 39922f072db4..ca7e9390d1e7 100644
--- a/drivers/video/fbdev/pmag-aa-fb.c
+++ b/drivers/video/fbdev/pmag-aa-fb.c
@@ -67,7 +67,7 @@ struct aafb_par {
 	struct bt431_regs __iomem *bt431;
 };
 
-static struct fb_var_screeninfo aafb_defined = {
+static const struct fb_var_screeninfo aafb_defined = {
 	.xres		= 1280,
 	.yres		= 1024,
 	.xres_virtual	= 2048,
@@ -90,7 +90,7 @@ static struct fb_var_screeninfo aafb_defined = {
 	.vmode		= FB_VMODE_NONINTERLACED,
 };
 
-static struct fb_fix_screeninfo aafb_fix = {
+static const struct fb_fix_screeninfo aafb_fix = {
 	.id		= "PMAG-AA",
 	.smem_len	= (2048 * 1024),
 	.type		= FB_TYPE_PACKED_PIXELS,
diff --git a/drivers/video/fbdev/pmag-ba-fb.c b/drivers/video/fbdev/pmag-ba-fb.c
index 1fd02f40708e..3b9249449ea6 100644
--- a/drivers/video/fbdev/pmag-ba-fb.c
+++ b/drivers/video/fbdev/pmag-ba-fb.c
@@ -43,7 +43,7 @@ struct pmagbafb_par {
 };
 
 
-static struct fb_var_screeninfo pmagbafb_defined = {
+static const struct fb_var_screeninfo pmagbafb_defined = {
 	.xres		= 1024,
 	.yres		= 864,
 	.xres_virtual	= 1024,
@@ -67,7 +67,7 @@ static struct fb_var_screeninfo pmagbafb_defined = {
 	.vmode		= FB_VMODE_NONINTERLACED,
 };
 
-static struct fb_fix_screeninfo pmagbafb_fix = {
+static const struct fb_fix_screeninfo pmagbafb_fix = {
 	.id		= "PMAG-BA",
 	.smem_len	= (1024 * 1024),
 	.type		= FB_TYPE_PACKED_PIXELS,
diff --git a/drivers/video/fbdev/pmagb-b-fb.c b/drivers/video/fbdev/pmagb-b-fb.c
index 46e96c451506..e58df36233c4 100644
--- a/drivers/video/fbdev/pmagb-b-fb.c
+++ b/drivers/video/fbdev/pmagb-b-fb.c
@@ -44,7 +44,7 @@ struct pmagbbfb_par {
 };
 
 
-static struct fb_var_screeninfo pmagbbfb_defined = {
+static const struct fb_var_screeninfo pmagbbfb_defined = {
 	.bits_per_pixel	= 8,
 	.red.length	= 8,
 	.green.length	= 8,
@@ -57,7 +57,7 @@ static struct fb_var_screeninfo pmagbbfb_defined = {
 	.vmode		= FB_VMODE_NONINTERLACED,
 };
 
-static struct fb_fix_screeninfo pmagbbfb_fix = {
+static const struct fb_fix_screeninfo pmagbbfb_fix = {
 	.id		= "PMAGB-BA",
 	.smem_len	= (2048 * 1024),
 	.type		= FB_TYPE_PACKED_PIXELS,
diff --git a/drivers/video/fbdev/ps3fb.c b/drivers/video/fbdev/ps3fb.c
index b269abd932aa..5ed2db39d823 100644
--- a/drivers/video/fbdev/ps3fb.c
+++ b/drivers/video/fbdev/ps3fb.c
@@ -952,7 +952,7 @@ static struct fb_ops ps3fb_ops = {
 	.fb_compat_ioctl = ps3fb_ioctl
 };
 
-static struct fb_fix_screeninfo ps3fb_fix = {
+static const struct fb_fix_screeninfo ps3fb_fix = {
 	.id =		DEVICE_NAME,
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.visual =	FB_VISUAL_TRUECOLOR,
diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c
index a2564ab91e62..867c5218968f 100644
--- a/drivers/video/fbdev/pvr2fb.c
+++ b/drivers/video/fbdev/pvr2fb.c
@@ -154,7 +154,7 @@ static struct fb_fix_screeninfo pvr2_fix = {
 	.accel =	FB_ACCEL_NONE,
 };
 
-static struct fb_var_screeninfo pvr2_var = {
+static const struct fb_var_screeninfo pvr2_var = {
 	.xres =		640,
 	.yres =		480,
 	.xres_virtual =	640,
@@ -966,7 +966,7 @@ static void pvr2fb_pci_remove(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 }
 
-static struct pci_device_id pvr2fb_pci_tbl[] = {
+static const struct pci_device_id pvr2fb_pci_tbl[] = {
 	{ PCI_VENDOR_ID_NEC, PCI_DEVICE_ID_NEC_NEON250,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ 0, },
diff --git a/drivers/video/fbdev/pxa168fb.h b/drivers/video/fbdev/pxa168fb.h
index eee09279c524..2aba90de1360 100644
--- a/drivers/video/fbdev/pxa168fb.h
+++ b/drivers/video/fbdev/pxa168fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PXA168FB_H__
 #define __PXA168FB_H__
 
diff --git a/drivers/video/fbdev/pxa3xx-gcu.c b/drivers/video/fbdev/pxa3xx-gcu.c
index 50bce45e7f3d..933619da1a94 100644
--- a/drivers/video/fbdev/pxa3xx-gcu.c
+++ b/drivers/video/fbdev/pxa3xx-gcu.c
@@ -626,8 +626,8 @@ static int pxa3xx_gcu_probe(struct platform_device *pdev)
 	/* request the IRQ */
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
-		dev_err(dev, "no IRQ defined\n");
-		return -ENODEV;
+		dev_err(dev, "no IRQ defined: %d\n", irq);
+		return irq;
 	}
 
 	ret = devm_request_irq(dev, irq, pxa3xx_gcu_handle_irq,
diff --git a/drivers/video/fbdev/pxa3xx-gcu.h b/drivers/video/fbdev/pxa3xx-gcu.h
index 0428ed03dc49..ea9489d16de5 100644
--- a/drivers/video/fbdev/pxa3xx-gcu.h
+++ b/drivers/video/fbdev/pxa3xx-gcu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PXA3XX_GCU_H__
 #define __PXA3XX_GCU_H__
 
diff --git a/drivers/video/fbdev/q40fb.c b/drivers/video/fbdev/q40fb.c
index 04ea330ccf5d..0b93aa964d43 100644
--- a/drivers/video/fbdev/q40fb.c
+++ b/drivers/video/fbdev/q40fb.c
@@ -36,7 +36,7 @@ static struct fb_fix_screeninfo q40fb_fix = {
 	.accel		= FB_ACCEL_NONE,
 };
 
-static struct fb_var_screeninfo q40fb_var = {
+static const struct fb_var_screeninfo q40fb_var = {
 	.xres		= 1024,
 	.yres		= 512,
 	.xres_virtual	= 1024,
diff --git a/drivers/video/fbdev/riva/Makefile b/drivers/video/fbdev/riva/Makefile
index 8898c9915b02..bdbdd6eb80ec 100644
--- a/drivers/video/fbdev/riva/Makefile
+++ b/drivers/video/fbdev/riva/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Riva framebuffer driver
 #
diff --git a/drivers/video/fbdev/riva/fbdev.c b/drivers/video/fbdev/riva/fbdev.c
index 2ef26ad99341..1ea78bb911fb 100644
--- a/drivers/video/fbdev/riva/fbdev.c
+++ b/drivers/video/fbdev/riva/fbdev.c
@@ -101,7 +101,7 @@ static int rivafb_blank(int blank, struct fb_info *info);
  *
  * ------------------------------------------------------------------------- */
 
-static struct pci_device_id rivafb_pci_tbl[] = {
+static const struct pci_device_id rivafb_pci_tbl[] = {
 	{ PCI_VENDOR_ID_NVIDIA_SGS, PCI_DEVICE_ID_NVIDIA_SGS_RIVA128,
 	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_TNT,
diff --git a/drivers/video/fbdev/riva/nv_type.h b/drivers/video/fbdev/riva/nv_type.h
index a69480c9a67c..51937a0ae0a4 100644
--- a/drivers/video/fbdev/riva/nv_type.h
+++ b/drivers/video/fbdev/riva/nv_type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/nv/nv_type.h,v 1.35 2002/08/05 20:47:06 mvojkovi Exp $ */
 
 #ifndef __NV_STRUCT_H__
diff --git a/drivers/video/fbdev/riva/rivafb.h b/drivers/video/fbdev/riva/rivafb.h
index 61fd37ca490a..593297ca2b20 100644
--- a/drivers/video/fbdev/riva/rivafb.h
+++ b/drivers/video/fbdev/riva/rivafb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RIVAFB_H
 #define __RIVAFB_H
 
diff --git a/drivers/video/fbdev/s3fb.c b/drivers/video/fbdev/s3fb.c
index 13b109073c63..d63f23e26f7d 100644
--- a/drivers/video/fbdev/s3fb.c
+++ b/drivers/video/fbdev/s3fb.c
@@ -1483,7 +1483,7 @@ static int s3_pci_resume(struct pci_dev* dev)
 
 /* List of boards that we are trying to support */
 
-static struct pci_device_id s3_devices[] = {
+static const struct pci_device_id s3_devices[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8810), .driver_data = CHIP_XXX_TRIO},
 	{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8811), .driver_data = CHIP_XXX_TRIO},
 	{PCI_DEVICE(PCI_VENDOR_ID_S3, 0x8812), .driver_data = CHIP_M65_AURORA64VP},
diff --git a/drivers/video/fbdev/savage/savagefb_driver.c b/drivers/video/fbdev/savage/savagefb_driver.c
index c30a91c1137c..c20468362f11 100644
--- a/drivers/video/fbdev/savage/savagefb_driver.c
+++ b/drivers/video/fbdev/savage/savagefb_driver.c
@@ -2429,7 +2429,7 @@ static int savagefb_resume(struct pci_dev* dev)
 }
 
 
-static struct pci_device_id savagefb_devices[] = {
+static const struct pci_device_id savagefb_devices[] = {
 	{PCI_VENDOR_ID_S3, PCI_CHIP_SUPSAV_MX128,
 	 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_SUPERSAVAGE},
 
diff --git a/drivers/video/fbdev/sbuslib.c b/drivers/video/fbdev/sbuslib.c
index a350209ffbd3..af6fc97f4ba4 100644
--- a/drivers/video/fbdev/sbuslib.c
+++ b/drivers/video/fbdev/sbuslib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* sbuslib.c: Helper library for SBUS framebuffer drivers.
  *
  * Copyright (C) 2003 David S. Miller (davem@redhat.com)
diff --git a/drivers/video/fbdev/sbuslib.h b/drivers/video/fbdev/sbuslib.h
index 7ba3250236bd..a6b9a2467646 100644
--- a/drivers/video/fbdev/sbuslib.h
+++ b/drivers/video/fbdev/sbuslib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sbuslib.h: SBUS fb helper library interfaces */
 #ifndef _SBUSLIB_H
 #define _SBUSLIB_H
diff --git a/drivers/video/fbdev/sh_mobile_lcdcfb.h b/drivers/video/fbdev/sh_mobile_lcdcfb.h
index f839adef1d90..cc52c74721fe 100644
--- a/drivers/video/fbdev/sh_mobile_lcdcfb.h
+++ b/drivers/video/fbdev/sh_mobile_lcdcfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SH_MOBILE_LCDCFB_H
 #define SH_MOBILE_LCDCFB_H
 
diff --git a/drivers/video/fbdev/sis/init301.c b/drivers/video/fbdev/sis/init301.c
index 20f7234e809e..1ec9c3e0e1d8 100644
--- a/drivers/video/fbdev/sis/init301.c
+++ b/drivers/video/fbdev/sis/init301.c
@@ -6848,8 +6848,6 @@ SiS_SetGroup2(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short
 	   if(SiS_Pr->SiS_VGAHDE >= 1280) {
               tempch = 20;
               tempbx &= ~0x20;
-           } else if(SiS_Pr->SiS_VGAHDE >= 1024) {
-              tempch = 25;
            } else {
 	      tempch = 25; /* OK */
 	   }
@@ -7964,14 +7962,9 @@ SiS_SetCHTVReg(struct SiS_Private *SiS_Pr, unsigned short ModeNo, unsigned short
             }
          }
       } else {						/* ---- PAL ---- */
-         /* We don't play around with FSCI in PAL mode */
-         if(resindex == 0x04) {
-            SiS_SetCH70xxANDOR(SiS_Pr,0x20,0x00,0xEF);	/* loop filter off */
-            SiS_SetCH70xxANDOR(SiS_Pr,0x21,0x01,0xFE);	/* ACIV on */
-         } else {
-            SiS_SetCH70xxANDOR(SiS_Pr,0x20,0x00,0xEF);	/* loop filter off */
-            SiS_SetCH70xxANDOR(SiS_Pr,0x21,0x01,0xFE);	/* ACIV on */
-         }
+	/* We don't play around with FSCI in PAL mode */
+	SiS_SetCH70xxANDOR(SiS_Pr, 0x20, 0x00, 0xEF);	/* loop filter off */
+	SiS_SetCH70xxANDOR(SiS_Pr, 0x21, 0x01, 0xFE);	/* ACIV on */
       }
 
 #endif  /* 300 */
@@ -9657,8 +9650,6 @@ SetDelayComp(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
 	      delay = 0x0a;
 	   } else if(IS_SIS740) {
 	      delay = 0x00;
-	   } else if(SiS_Pr->ChipType < SIS_330) {
-	      delay = 0x0c;
 	   } else {
 	      delay = 0x0c;
 	   }
diff --git a/drivers/video/fbdev/skeletonfb.c b/drivers/video/fbdev/skeletonfb.c
index e219a0a22077..7f4e908330bf 100644
--- a/drivers/video/fbdev/skeletonfb.c
+++ b/drivers/video/fbdev/skeletonfb.c
@@ -84,7 +84,7 @@ struct xxx_par;
  * if we don't use modedb. If we do use modedb see xxxfb_init how to use it
  * to get a fb_var_screeninfo. Otherwise define a default var as well. 
  */
-static struct fb_fix_screeninfo xxxfb_fix = {
+static const struct fb_fix_screeninfo xxxfb_fix = {
 	.id =		"FB's name", 
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.visual =	FB_VISUAL_PSEUDOCOLOR,
@@ -866,7 +866,7 @@ static int xxxfb_resume(struct pci_dev *dev)
 #define xxxfb_resume NULL
 #endif /* CONFIG_PM */
 
-static struct pci_device_id xxxfb_id_table[] = {
+static const struct pci_device_id xxxfb_id_table[] = {
 	{ PCI_VENDOR_ID_XXX, PCI_DEVICE_ID_XXX,
 	  PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
 	  PCI_CLASS_MASK, 0 },
diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c
index 67e314fdd947..076dd2711630 100644
--- a/drivers/video/fbdev/sm501fb.c
+++ b/drivers/video/fbdev/sm501fb.c
@@ -46,7 +46,7 @@
 static char *fb_mode = "640x480-16@60";
 static unsigned long default_bpp = 16;
 
-static struct fb_videomode sm501_default_mode = {
+static const struct fb_videomode sm501_default_mode = {
 	.refresh	= 60,
 	.xres		= 640,
 	.yres		= 480,
diff --git a/drivers/video/fbdev/sm712fb.c b/drivers/video/fbdev/sm712fb.c
index 73cb4ffff3c5..502d0de2feec 100644
--- a/drivers/video/fbdev/sm712fb.c
+++ b/drivers/video/fbdev/sm712fb.c
@@ -33,8 +33,8 @@
 #include "sm712.h"
 
 /*
-* Private structure
-*/
+ * Private structure
+ */
 struct smtcfb_info {
 	struct pci_dev *pdev;
 	struct fb_info *fb;
@@ -785,7 +785,7 @@ static void __init sm7xx_vga_setup(char *options)
 	smtc_scr_info.lfb_height = 0;
 	smtc_scr_info.lfb_depth = 0;
 
-	pr_debug("sm7xx_vga_setup = %s\n", options);
+	pr_debug("%s = %s\n", __func__, options);
 
 	for (i = 0; i < ARRAY_SIZE(vesa_mode_table); i++) {
 		if (strstr(options, vesa_mode_table[i].index)) {
@@ -798,8 +798,8 @@ static void __init sm7xx_vga_setup(char *options)
 	}
 }
 
-static void sm712_setpalette(int regno, unsigned red, unsigned green,
-			     unsigned blue, struct fb_info *info)
+static void sm712_setpalette(int regno, unsigned int red, unsigned int green,
+			     unsigned int blue, struct fb_info *info)
 {
 	/* set bit 5:4 = 01 (write LCD RAM only) */
 	smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
@@ -896,8 +896,9 @@ static int smtc_blank(int blank_mode, struct fb_info *info)
 	return 0;
 }
 
-static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
-			  unsigned blue, unsigned trans, struct fb_info *info)
+static int smtc_setcolreg(unsigned int regno, unsigned int red,
+			  unsigned int green, unsigned int blue,
+			  unsigned int trans, struct fb_info *info)
 {
 	struct smtcfb_info *sfb;
 	u32 val;
@@ -1477,7 +1478,7 @@ static int smtcfb_pci_probe(struct pci_dev *pdev,
 	}
 
 	/* can support 32 bpp */
-	if (15 == sfb->fb->var.bits_per_pixel)
+	if (sfb->fb->var.bits_per_pixel == 15)
 		sfb->fb->var.bits_per_pixel = 16;
 
 	sfb->fb->var.xres_virtual = sfb->fb->var.xres;
diff --git a/drivers/video/fbdev/smscufx.c b/drivers/video/fbdev/smscufx.c
index 449fceaf79d5..2275e80b5776 100644
--- a/drivers/video/fbdev/smscufx.c
+++ b/drivers/video/fbdev/smscufx.c
@@ -122,7 +122,7 @@ static const u32 smscufx_info_flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
 	FBINFO_VIRTFB |	FBINFO_HWACCEL_IMAGEBLIT | FBINFO_HWACCEL_FILLRECT |
 	FBINFO_HWACCEL_COPYAREA | FBINFO_MISC_ALWAYS_SETPAR;
 
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
 	{USB_DEVICE(0x0424, 0x9d00),},
 	{USB_DEVICE(0x0424, 0x9d01),},
 	{},
diff --git a/drivers/video/fbdev/sticore.h b/drivers/video/fbdev/sticore.h
index af1619536ac8..fb8f58f9867a 100644
--- a/drivers/video/fbdev/sticore.h
+++ b/drivers/video/fbdev/sticore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef STICORE_H
 #define STICORE_H
 
diff --git a/drivers/video/fbdev/sunxvr1000.c b/drivers/video/fbdev/sunxvr1000.c
index fb37f6e05391..8fe37c0ef2f5 100644
--- a/drivers/video/fbdev/sunxvr1000.c
+++ b/drivers/video/fbdev/sunxvr1000.c
@@ -33,8 +33,8 @@ static int gfb_get_props(struct gfb_info *gp)
 	gp->depth = of_getintprop_default(gp->of_node, "depth", 32);
 
 	if (!gp->width || !gp->height) {
-		printk(KERN_ERR "gfb: Critical properties missing for %s\n",
-		       gp->of_node->full_name);
+		printk(KERN_ERR "gfb: Critical properties missing for %pOF\n",
+		       gp->of_node);
 		return -EINVAL;
 	}
 
@@ -151,12 +151,12 @@ static int gfb_probe(struct platform_device *op)
 	if (err)
 		goto err_unmap_fb;
 
-	printk("gfb: Found device at %s\n", dp->full_name);
+	printk("gfb: Found device at %pOF\n", dp);
 
 	err = register_framebuffer(info);
 	if (err < 0) {
-		printk(KERN_ERR "gfb: Could not register framebuffer %s\n",
-		       dp->full_name);
+		printk(KERN_ERR "gfb: Could not register framebuffer %pOF\n",
+		       dp);
 		goto err_unmap_fb;
 	}
 
diff --git a/drivers/video/fbdev/sunxvr2500.c b/drivers/video/fbdev/sunxvr2500.c
index 1a053292f2eb..544465ba1dc0 100644
--- a/drivers/video/fbdev/sunxvr2500.c
+++ b/drivers/video/fbdev/sunxvr2500.c
@@ -220,7 +220,7 @@ err_out:
 	return err;
 }
 
-static struct pci_device_id s3d_pci_table[] = {
+static const struct pci_device_id s3d_pci_table[] = {
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002c),	},
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002d),	},
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x002e),	},
diff --git a/drivers/video/fbdev/sunxvr500.c b/drivers/video/fbdev/sunxvr500.c
index dc0d886e4e7e..bc595937df08 100644
--- a/drivers/video/fbdev/sunxvr500.c
+++ b/drivers/video/fbdev/sunxvr500.c
@@ -393,7 +393,7 @@ err_out:
 	return err;
 }
 
-static struct pci_device_id e3d_pci_table[] = {
+static const struct pci_device_id e3d_pci_table[] = {
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x7a0),	},
 	{	PCI_DEVICE(0x1091, 0x7a0),			},
 	{	PCI_DEVICE(PCI_VENDOR_ID_3DLABS, 0x7a2),	},
diff --git a/drivers/video/fbdev/tcx.c b/drivers/video/fbdev/tcx.c
index 54ad08854c94..c98d8a569ccd 100644
--- a/drivers/video/fbdev/tcx.c
+++ b/drivers/video/fbdev/tcx.c
@@ -467,8 +467,8 @@ static int tcx_probe(struct platform_device *op)
 
 	dev_set_drvdata(&op->dev, info);
 
-	printk(KERN_INFO "%s: TCX at %lx:%lx, %s\n",
-	       dp->full_name,
+	printk(KERN_INFO "%pOF: TCX at %lx:%lx, %s\n",
+	       dp,
 	       par->which_io,
 	       info->fix.smem_start,
 	       par->lowdepth ? "8-bit only" : "24-bit depth");
diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index d5fa313806fe..dec1fed9880e 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c
@@ -120,7 +120,7 @@ static const struct fb_var_screeninfo tdfx_var = {
 static int tdfxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id);
 static void tdfxfb_remove(struct pci_dev *pdev);
 
-static struct pci_device_id tdfxfb_id_table[] = {
+static const struct pci_device_id tdfxfb_id_table[] = {
 	{ PCI_VENDOR_ID_3DFX, PCI_DEVICE_ID_3DFX_BANSHEE,
 	  PCI_ANY_ID, PCI_ANY_ID, PCI_BASE_CLASS_DISPLAY << 16,
 	  0xff0000, 0 },
diff --git a/drivers/video/fbdev/tridentfb.c b/drivers/video/fbdev/tridentfb.c
index 8a5bbc13082e..284706184b1b 100644
--- a/drivers/video/fbdev/tridentfb.c
+++ b/drivers/video/fbdev/tridentfb.c
@@ -1737,7 +1737,7 @@ static void trident_pci_remove(struct pci_dev *dev)
 }
 
 /* List of boards that we are trying to support */
-static struct pci_device_id trident_devices[] = {
+static const struct pci_device_id trident_devices[] = {
 	{PCI_VENDOR_ID_TRIDENT,	BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_TRIDENT,	CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
 	{PCI_VENDOR_ID_TRIDENT,	CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
diff --git a/drivers/video/fbdev/udlfb.c b/drivers/video/fbdev/udlfb.c
index 05ef657235df..ef08a104fb42 100644
--- a/drivers/video/fbdev/udlfb.c
+++ b/drivers/video/fbdev/udlfb.c
@@ -54,7 +54,7 @@ static const u32 udlfb_info_flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
  * which is compatible with all known USB 2.0 era graphics chips and firmware,
  * but allows DisplayLink to increment those for any future incompatible chips
  */
-static struct usb_device_id id_table[] = {
+static const struct usb_device_id id_table[] = {
 	{.idVendor = 0x17e9,
 	 .bInterfaceClass = 0xff,
 	 .bInterfaceSubClass = 0x00,
@@ -1465,7 +1465,7 @@ static ssize_t metrics_reset_store(struct device *fbdev,
 	return count;
 }
 
-static struct bin_attribute edid_attr = {
+static const struct bin_attribute edid_attr = {
 	.attr.name = "edid",
 	.attr.mode = 0666,
 	.size = EDID_LENGTH,
@@ -1655,7 +1655,6 @@ static int dlfb_usb_probe(struct usb_interface *interface,
 error:
 	if (dev) {
 
-		kref_put(&dev->kref, dlfb_free); /* ref for framebuffer */
 		kref_put(&dev->kref, dlfb_free); /* last ref from kref_init */
 
 		/* dev has been deallocated. Do not dereference */
diff --git a/drivers/video/fbdev/uvesafb.c b/drivers/video/fbdev/uvesafb.c
index 6f8c0b9fc558..73676eb0244a 100644
--- a/drivers/video/fbdev/uvesafb.c
+++ b/drivers/video/fbdev/uvesafb.c
@@ -1666,7 +1666,7 @@ static struct attribute *uvesafb_dev_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group uvesafb_dev_attgrp = {
+static const struct attribute_group uvesafb_dev_attgrp = {
 	.name = NULL,
 	.attrs = uvesafb_dev_attrs,
 };
diff --git a/drivers/video/fbdev/vermilion/vermilion.c b/drivers/video/fbdev/vermilion/vermilion.c
index ce4c4729a5e8..6f8d444eb0e3 100644
--- a/drivers/video/fbdev/vermilion/vermilion.c
+++ b/drivers/video/fbdev/vermilion/vermilion.c
@@ -55,7 +55,7 @@ static struct list_head global_has_mode;
 static struct fb_ops vmlfb_ops;
 static struct vml_sys *subsys = NULL;
 static char *vml_default_mode = "1024x768@60";
-static struct fb_videomode defaultmode = {
+static const struct fb_videomode defaultmode = {
 	NULL, 60, 1024, 768, 12896, 144, 24, 29, 3, 136, 6,
 	0, FB_VMODE_NONINTERLACED
 };
@@ -1044,7 +1044,7 @@ static struct fb_ops vmlfb_ops = {
 	.fb_setcolreg = vmlfb_setcolreg
 };
 
-static struct pci_device_id vml_ids[] = {
+static const struct pci_device_id vml_ids[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, VML_DEVICE_VDC)},
 	{0}
 };
diff --git a/drivers/video/fbdev/via/Makefile b/drivers/video/fbdev/via/Makefile
index 159f26e6adb5..771a0eee7fb4 100644
--- a/drivers/video/fbdev/via/Makefile
+++ b/drivers/video/fbdev/via/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the VIA framebuffer driver (for Linux Kernel 2.6)
 #
diff --git a/drivers/video/fbdev/via/via-core.c b/drivers/video/fbdev/via/via-core.c
index 1d28e16888e9..77774d8abf94 100644
--- a/drivers/video/fbdev/via/via-core.c
+++ b/drivers/video/fbdev/via/via-core.c
@@ -724,7 +724,7 @@ static void via_pci_remove(struct pci_dev *pdev)
 }
 
 
-static struct pci_device_id via_pci_table[] = {
+static const struct pci_device_id via_pci_table[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CLE266_DID),
 	  .driver_data = UNICHROME_CLE266 },
 	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K400_DID),
diff --git a/drivers/video/fbdev/vt8623fb.c b/drivers/video/fbdev/vt8623fb.c
index dd0f18e42d3e..5cac871db3ee 100644
--- a/drivers/video/fbdev/vt8623fb.c
+++ b/drivers/video/fbdev/vt8623fb.c
@@ -81,7 +81,7 @@ static struct vga_regset vt8623_line_compare_regs[]  = {{0x18, 0, 7}, {0x07, 4,
 static struct vga_regset vt8623_fetch_count_regs[]   = {{0x1C, 0, 7}, {0x1D, 0, 1}, VGA_REGSET_END};
 static struct vga_regset vt8623_start_address_regs[] = {{0x0d, 0, 7}, {0x0c, 0, 7}, {0x34, 0, 7}, {0x48, 0, 1}, VGA_REGSET_END};
 
-static struct svga_timing_regs vt8623_timing_regs     = {
+static const struct svga_timing_regs vt8623_timing_regs     = {
 	vt8623_h_total_regs, vt8623_h_display_regs, vt8623_h_blank_start_regs,
 	vt8623_h_blank_end_regs, vt8623_h_sync_start_regs, vt8623_h_sync_end_regs,
 	vt8623_v_total_regs, vt8623_v_display_regs, vt8623_v_blank_start_regs,
@@ -888,7 +888,7 @@ fail:
 
 /* List of boards that we are trying to support */
 
-static struct pci_device_id vt8623_devices[] = {
+static const struct pci_device_id vt8623_devices[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_VIA, 0x3122)},
 	{0, 0, 0, 0, 0, 0, 0}
 };
diff --git a/drivers/video/fbdev/wmt_ge_rops.h b/drivers/video/fbdev/wmt_ge_rops.h
index f73ec6377a46..8d9ed8a51a79 100644
--- a/drivers/video/fbdev/wmt_ge_rops.h
+++ b/drivers/video/fbdev/wmt_ge_rops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_FB_WMT_GE_ROPS
 
 extern void wmt_ge_fillrect(struct fb_info *info,
diff --git a/drivers/video/fbdev/xilinxfb.c b/drivers/video/fbdev/xilinxfb.c
index 17dc119c7a98..8628829b470d 100644
--- a/drivers/video/fbdev/xilinxfb.c
+++ b/drivers/video/fbdev/xilinxfb.c
@@ -41,7 +41,6 @@
 
 #define DRIVER_NAME		"xilinxfb"
 
-
 /*
  * Xilinx calls it "TFT LCD Controller" though it can also be used for
  * the VGA port on the Xilinx ML40x board. This is a hardware display
@@ -92,15 +91,16 @@ struct xilinxfb_platform_data {
 	u32 xvirt, yvirt;       /* resolution of memory buffer */
 
 	/* Physical address of framebuffer memory; If non-zero, driver
-	* will use provided memory address instead of allocating one from
-	* the consistent pool. */
+	 * will use provided memory address instead of allocating one from
+	 * the consistent pool.
+	 */
 	u32 fb_phys;
 };
 
 /*
  * Default xilinxfb configuration
  */
-static struct xilinxfb_platform_data xilinx_fb_default_pdata = {
+static const struct xilinxfb_platform_data xilinx_fb_default_pdata = {
 	.xres = 640,
 	.yres = 480,
 	.xvirt = 1024,
@@ -110,14 +110,14 @@ static struct xilinxfb_platform_data xilinx_fb_default_pdata = {
 /*
  * Here are the default fb_fix_screeninfo and fb_var_screeninfo structures
  */
-static struct fb_fix_screeninfo xilinx_fb_fix = {
+static const struct fb_fix_screeninfo xilinx_fb_fix = {
 	.id =		"Xilinx",
 	.type =		FB_TYPE_PACKED_PIXELS,
 	.visual =	FB_VISUAL_TRUECOLOR,
 	.accel =	FB_ACCEL_NONE
 };
 
-static struct fb_var_screeninfo xilinx_fb_var = {
+static const struct fb_var_screeninfo xilinx_fb_var = {
 	.bits_per_pixel =	BITS_PER_PIXEL,
 
 	.red =		{ RED_SHIFT, 8, 0 },
@@ -128,18 +128,18 @@ static struct fb_var_screeninfo xilinx_fb_var = {
 	.activate =	FB_ACTIVATE_NOW
 };
 
-
 #define BUS_ACCESS_FLAG		0x1 /* 1 = BUS, 0 = DCR */
 #define LITTLE_ENDIAN_ACCESS	0x2 /* LITTLE ENDIAN IO functions */
 
 struct xilinxfb_drvdata {
-
 	struct fb_info	info;		/* FB driver info record */
 
 	phys_addr_t	regs_phys;	/* phys. address of the control
-						registers */
+					 * registers
+					 */
 	void __iomem	*regs;		/* virt. address of the control
-						registers */
+					 * registers
+					 */
 #ifdef CONFIG_PPC_DCR
 	dcr_host_t      dcr_host;
 	unsigned int    dcr_len;
@@ -148,7 +148,7 @@ struct xilinxfb_drvdata {
 	dma_addr_t	fb_phys;	/* phys. address of the frame buffer */
 	int		fb_alloced;	/* Flag, was the fb memory alloced? */
 
-	u8 		flags;		/* features of the driver */
+	u8		flags;		/* features of the driver */
 
 	u32		reg_ctrl_default;
 
@@ -165,7 +165,7 @@ struct xilinxfb_drvdata {
  * which bus its connected and call the appropriate write API.
  */
 static void xilinx_fb_out32(struct xilinxfb_drvdata *drvdata, u32 offset,
-				u32 val)
+			    u32 val)
 {
 	if (drvdata->flags & BUS_ACCESS_FLAG) {
 		if (drvdata->flags & LITTLE_ENDIAN_ACCESS)
@@ -195,8 +195,8 @@ static u32 xilinx_fb_in32(struct xilinxfb_drvdata *drvdata, u32 offset)
 }
 
 static int
-xilinx_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
-	unsigned transp, struct fb_info *fbi)
+xilinx_fb_setcolreg(unsigned int regno, unsigned int red, unsigned int green,
+		    unsigned int blue, unsigned int transp, struct fb_info *fbi)
 {
 	u32 *palette = fbi->pseudo_palette;
 
@@ -205,9 +205,11 @@ xilinx_fb_setcolreg(unsigned regno, unsigned red, unsigned green, unsigned blue,
 
 	if (fbi->var.grayscale) {
 		/* Convert color to grayscale.
-		 * grayscale = 0.30*R + 0.59*G + 0.11*B */
-		red = green = blue =
-			(red * 77 + green * 151 + blue * 28 + 127) >> 8;
+		 * grayscale = 0.30*R + 0.59*G + 0.11*B
+		 */
+		blue = (red * 77 + green * 151 + blue * 28 + 127) >> 8;
+		green = blue;
+		red = green;
 	}
 
 	/* fbi->fix.visual is always FB_VISUAL_TRUECOLOR */
@@ -241,13 +243,11 @@ xilinx_fb_blank(int blank_mode, struct fb_info *fbi)
 		xilinx_fb_out32(drvdata, REG_CTRL, 0);
 	default:
 		break;
-
 	}
 	return 0; /* success */
 }
 
-static struct fb_ops xilinxfb_ops =
-{
+static struct fb_ops xilinxfb_ops = {
 	.owner			= THIS_MODULE,
 	.fb_setcolreg		= xilinx_fb_setcolreg,
 	.fb_blank		= xilinx_fb_blank,
@@ -286,7 +286,8 @@ static int xilinxfb_assign(struct platform_device *pdev,
 	} else {
 		drvdata->fb_alloced = 1;
 		drvdata->fb_virt = dma_alloc_coherent(dev, PAGE_ALIGN(fbsize),
-					&drvdata->fb_phys, GFP_KERNEL);
+						      &drvdata->fb_phys,
+						      GFP_KERNEL);
 	}
 
 	if (!drvdata->fb_virt) {
@@ -300,7 +301,7 @@ static int xilinxfb_assign(struct platform_device *pdev,
 	/* Tell the hardware where the frame buffer is */
 	xilinx_fb_out32(drvdata, REG_FB_ADDR, drvdata->fb_phys);
 	rc = xilinx_fb_in32(drvdata, REG_FB_ADDR);
-	/* Endianess detection */
+	/* Endianness detection */
 	if (rc != drvdata->fb_phys) {
 		drvdata->flags |= LITTLE_ENDIAN_ACCESS;
 		xilinx_fb_out32(drvdata, REG_FB_ADDR, drvdata->fb_phys);
@@ -310,8 +311,7 @@ static int xilinxfb_assign(struct platform_device *pdev,
 	drvdata->reg_ctrl_default = REG_CTRL_ENABLE;
 	if (pdata->rotate_screen)
 		drvdata->reg_ctrl_default |= REG_CTRL_ROTATE;
-	xilinx_fb_out32(drvdata, REG_CTRL,
-					drvdata->reg_ctrl_default);
+	xilinx_fb_out32(drvdata, REG_CTRL, drvdata->reg_ctrl_default);
 
 	/* Fill struct fb_info */
 	drvdata->info.device = dev;
@@ -364,7 +364,7 @@ err_regfb:
 err_cmap:
 	if (drvdata->fb_alloced)
 		dma_free_coherent(dev, PAGE_ALIGN(fbsize), drvdata->fb_virt,
-			drvdata->fb_phys);
+				  drvdata->fb_phys);
 	else
 		iounmap(drvdata->fb_virt);
 
@@ -435,12 +435,12 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
 	 * Fill the resource structure if its direct BUS interface
 	 * otherwise fill the dcr_host structure.
 	 */
-	if (tft_access) {
+	if (tft_access)
 		drvdata->flags |= BUS_ACCESS_FLAG;
-	}
 #ifdef CONFIG_PPC_DCR
 	else {
 		int start;
+
 		start = dcr_resource_start(pdev->dev.of_node, 0);
 		drvdata->dcr_len = dcr_resource_len(pdev->dev.of_node, 0);
 		drvdata->dcr_host = dcr_map(pdev->dev.of_node, start, drvdata->dcr_len);
@@ -452,19 +452,19 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
 #endif
 
 	prop = of_get_property(pdev->dev.of_node, "phys-size", &size);
-	if ((prop) && (size >= sizeof(u32)*2)) {
+	if ((prop) && (size >= sizeof(u32) * 2)) {
 		pdata.screen_width_mm = prop[0];
 		pdata.screen_height_mm = prop[1];
 	}
 
 	prop = of_get_property(pdev->dev.of_node, "resolution", &size);
-	if ((prop) && (size >= sizeof(u32)*2)) {
+	if ((prop) && (size >= sizeof(u32) * 2)) {
 		pdata.xres = prop[0];
 		pdata.yres = prop[1];
 	}
 
 	prop = of_get_property(pdev->dev.of_node, "virtual-resolution", &size);
-	if ((prop) && (size >= sizeof(u32)*2)) {
+	if ((prop) && (size >= sizeof(u32) * 2)) {
 		pdata.xvirt = prop[0];
 		pdata.yvirt = prop[1];
 	}
@@ -482,7 +482,7 @@ static int xilinxfb_of_remove(struct platform_device *op)
 }
 
 /* Match table for of_platform binding */
-static struct of_device_id xilinxfb_of_match[] = {
+static const struct of_device_id xilinxfb_of_match[] = {
 	{ .compatible = "xlnx,xps-tft-1.00.a", },
 	{ .compatible = "xlnx,xps-tft-2.00.a", },
 	{ .compatible = "xlnx,xps-tft-2.01.a", },
diff --git a/drivers/video/logo/Makefile b/drivers/video/logo/Makefile
index 3b437813584c..6194373ee424 100644
--- a/drivers/video/logo/Makefile
+++ b/drivers/video/logo/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux logos
 
 obj-$(CONFIG_LOGO)			+= logo.o
diff --git a/drivers/video/of_display_timing.c b/drivers/video/of_display_timing.c
index 32b0a7543433..8ce0a99bf17c 100644
--- a/drivers/video/of_display_timing.c
+++ b/drivers/video/of_display_timing.c
@@ -31,8 +31,7 @@ static int parse_timing_property(const struct device_node *np, const char *name,
 
 	prop = of_find_property(np, name, &length);
 	if (!prop) {
-		pr_err("%s: could not find property %s\n",
-			of_node_full_name(np), name);
+		pr_err("%pOF: could not find property %s\n", np, name);
 		return -EINVAL;
 	}
 
@@ -44,8 +43,7 @@ static int parse_timing_property(const struct device_node *np, const char *name,
 	} else if (cells == 3) {
 		ret = of_property_read_u32_array(np, name, &result->min, cells);
 	} else {
-		pr_err("%s: illegal timing specification in %s\n",
-			of_node_full_name(np), name);
+		pr_err("%pOF: illegal timing specification in %s\n", np, name);
 		return -EINVAL;
 	}
 
@@ -105,8 +103,7 @@ static int of_parse_display_timing(const struct device_node *np,
 		dt->flags |= DISPLAY_FLAGS_DOUBLECLK;
 
 	if (ret) {
-		pr_err("%s: error reading timing properties\n",
-			of_node_full_name(np));
+		pr_err("%pOF: error reading timing properties\n", np);
 		return -EINVAL;
 	}
 
@@ -129,8 +126,7 @@ int of_get_display_timing(const struct device_node *np, const char *name,
 
 	timing_np = of_get_child_by_name(np, name);
 	if (!timing_np) {
-		pr_err("%s: could not find node '%s'\n",
-			of_node_full_name(np), name);
+		pr_err("%pOF: could not find node '%s'\n", np, name);
 		return -ENOENT;
 	}
 
@@ -154,15 +150,13 @@ struct display_timings *of_get_display_timings(const struct device_node *np)
 
 	timings_np = of_get_child_by_name(np, "display-timings");
 	if (!timings_np) {
-		pr_err("%s: could not find display-timings node\n",
-			of_node_full_name(np));
+		pr_err("%pOF: could not find display-timings node\n", np);
 		return NULL;
 	}
 
 	disp = kzalloc(sizeof(*disp), GFP_KERNEL);
 	if (!disp) {
-		pr_err("%s: could not allocate struct disp'\n",
-			of_node_full_name(np));
+		pr_err("%pOF: could not allocate struct disp'\n", np);
 		goto dispfail;
 	}
 
@@ -172,28 +166,25 @@ struct display_timings *of_get_display_timings(const struct device_node *np)
 		entry = of_get_next_child(timings_np, NULL);
 	/* if there is no child, it is useless to go on */
 	if (!entry) {
-		pr_err("%s: no timing specifications given\n",
-			of_node_full_name(np));
+		pr_err("%pOF: no timing specifications given\n", np);
 		goto entryfail;
 	}
 
-	pr_debug("%s: using %s as default timing\n",
-		of_node_full_name(np), entry->name);
+	pr_debug("%pOF: using %s as default timing\n", np, entry->name);
 
 	native_mode = entry;
 
 	disp->num_timings = of_get_child_count(timings_np);
 	if (disp->num_timings == 0) {
 		/* should never happen, as entry was already found above */
-		pr_err("%s: no timings specified\n", of_node_full_name(np));
+		pr_err("%pOF: no timings specified\n", np);
 		goto entryfail;
 	}
 
 	disp->timings = kzalloc(sizeof(struct display_timing *) *
 				disp->num_timings, GFP_KERNEL);
 	if (!disp->timings) {
-		pr_err("%s: could not allocate timings array\n",
-			of_node_full_name(np));
+		pr_err("%pOF: could not allocate timings array\n", np);
 		goto entryfail;
 	}
 
@@ -206,8 +197,8 @@ struct display_timings *of_get_display_timings(const struct device_node *np)
 
 		dt = kzalloc(sizeof(*dt), GFP_KERNEL);
 		if (!dt) {
-			pr_err("%s: could not allocate display_timing struct\n",
-					of_node_full_name(np));
+			pr_err("%pOF: could not allocate display_timing struct\n",
+				np);
 			goto timingfail;
 		}
 
@@ -217,8 +208,8 @@ struct display_timings *of_get_display_timings(const struct device_node *np)
 			 * to not encourage wrong devicetrees, fail in case of
 			 * an error
 			 */
-			pr_err("%s: error in timing %d\n",
-				of_node_full_name(np), disp->num_timings + 1);
+			pr_err("%pOF: error in timing %d\n",
+				np, disp->num_timings + 1);
 			kfree(dt);
 			goto timingfail;
 		}
@@ -236,8 +227,8 @@ struct display_timings *of_get_display_timings(const struct device_node *np)
 	 */
 	of_node_put(native_mode);
 
-	pr_debug("%s: got %d timings. Using timing #%d as default\n",
-		of_node_full_name(np), disp->num_timings,
+	pr_debug("%pOF: got %d timings. Using timing #%d as default\n",
+		np, disp->num_timings,
 		disp->native_mode + 1);
 
 	return disp;
diff --git a/drivers/video/of_videomode.c b/drivers/video/of_videomode.c
index b5102aa6090d..9b5f9de88fec 100644
--- a/drivers/video/of_videomode.c
+++ b/drivers/video/of_videomode.c
@@ -36,7 +36,7 @@ int of_get_videomode(struct device_node *np, struct videomode *vm,
 
 	disp = of_get_display_timings(np);
 	if (!disp) {
-		pr_err("%s: no timings specified\n", of_node_full_name(np));
+		pr_err("%pOF: no timings specified\n", np);
 		return -EINVAL;
 	}
 
diff --git a/drivers/virtio/Makefile b/drivers/virtio/Makefile
index 41e30e3dc842..3a2b5c5dcf46 100644
--- a/drivers/virtio/Makefile
+++ b/drivers/virtio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VIRTIO) += virtio.o virtio_ring.o
 obj-$(CONFIG_VIRTIO_MMIO) += virtio_mmio.o
 obj-$(CONFIG_VIRTIO_PCI) += virtio_pci.o
diff --git a/drivers/vme/vme_bridge.h b/drivers/vme/vme_bridge.h
index 2662e916b96a..42ecf961004e 100644
--- a/drivers/vme/vme_bridge.h
+++ b/drivers/vme/vme_bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VME_BRIDGE_H_
 #define _VME_BRIDGE_H_
 
diff --git a/drivers/w1/masters/Makefile b/drivers/w1/masters/Makefile
index c5a3e96fcbab..18954cae4256 100644
--- a/drivers/w1/masters/Makefile
+++ b/drivers/w1/masters/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for 1-wire bus master drivers.
 #
diff --git a/drivers/w1/slaves/Makefile b/drivers/w1/slaves/Makefile
index 36b22fb2d3a1..79c611ce5f18 100644
--- a/drivers/w1/slaves/Makefile
+++ b/drivers/w1/slaves/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Dallas's 1-wire slaves.
 #
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 56adf9fa67d0..715a21078e0c 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the WatchDog device drivers.
 #
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index 665e0e7dfe1e..18e896eeca62 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -71,7 +71,7 @@ MODULE_PARM_DESC(use_gpio,
 		"Use the gpio watchdog (required by old cobalt boards).");
 
 static void wdt_timer_ping(unsigned long);
-static DEFINE_TIMER(timer, wdt_timer_ping, 0, 1);
+static DEFINE_TIMER(timer, wdt_timer_ping);
 static unsigned long next_heartbeat;
 static unsigned long wdt_is_open;
 static char wdt_expect_close;
@@ -87,7 +87,7 @@ MODULE_PARM_DESC(nowayout,
  *	Whack the dog
  */
 
-static void wdt_timer_ping(unsigned long data)
+static void wdt_timer_ping(unsigned long unused)
 {
 	/* If we got a heartbeat pulse within the WDT_US_INTERVAL
 	 * we agree to ping the WDT
diff --git a/drivers/watchdog/asm9260_wdt.c b/drivers/watchdog/asm9260_wdt.c
index 53da001f0838..7dd0da644a7f 100644
--- a/drivers/watchdog/asm9260_wdt.c
+++ b/drivers/watchdog/asm9260_wdt.c
@@ -82,7 +82,7 @@ static unsigned int asm9260_wdt_gettimeleft(struct watchdog_device *wdd)
 
 	counter = ioread32(priv->iobase + HW_WDTV);
 
-	return DIV_ROUND_CLOSEST(counter, priv->wdt_freq);
+	return counter / priv->wdt_freq;
 }
 
 static int asm9260_wdt_updatetimeout(struct watchdog_device *wdd)
@@ -296,7 +296,7 @@ static int asm9260_wdt_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	priv->rst = devm_reset_control_get(&pdev->dev, "wdt_rst");
+	priv->rst = devm_reset_control_get_exclusive(&pdev->dev, "wdt_rst");
 	if (IS_ERR(priv->rst))
 		return PTR_ERR(priv->rst);
 
diff --git a/drivers/watchdog/aspeed_wdt.c b/drivers/watchdog/aspeed_wdt.c
index 1c652582de40..79cc766cd30f 100644
--- a/drivers/watchdog/aspeed_wdt.c
+++ b/drivers/watchdog/aspeed_wdt.c
@@ -23,9 +23,21 @@ struct aspeed_wdt {
 	u32			ctrl;
 };
 
+struct aspeed_wdt_config {
+	u32 ext_pulse_width_mask;
+};
+
+static const struct aspeed_wdt_config ast2400_config = {
+	.ext_pulse_width_mask = 0xff,
+};
+
+static const struct aspeed_wdt_config ast2500_config = {
+	.ext_pulse_width_mask = 0xfffff,
+};
+
 static const struct of_device_id aspeed_wdt_of_table[] = {
-	{ .compatible = "aspeed,ast2400-wdt" },
-	{ .compatible = "aspeed,ast2500-wdt" },
+	{ .compatible = "aspeed,ast2400-wdt", .data = &ast2400_config },
+	{ .compatible = "aspeed,ast2500-wdt", .data = &ast2500_config },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, aspeed_wdt_of_table);
@@ -36,12 +48,45 @@ MODULE_DEVICE_TABLE(of, aspeed_wdt_of_table);
 #define WDT_CTRL		0x0C
 #define   WDT_CTRL_RESET_MODE_SOC	(0x00 << 5)
 #define   WDT_CTRL_RESET_MODE_FULL_CHIP	(0x01 << 5)
+#define   WDT_CTRL_RESET_MODE_ARM_CPU	(0x10 << 5)
 #define   WDT_CTRL_1MHZ_CLK		BIT(4)
 #define   WDT_CTRL_WDT_EXT		BIT(3)
 #define   WDT_CTRL_WDT_INTR		BIT(2)
 #define   WDT_CTRL_RESET_SYSTEM		BIT(1)
 #define   WDT_CTRL_ENABLE		BIT(0)
 
+/*
+ * WDT_RESET_WIDTH controls the characteristics of the external pulse (if
+ * enabled), specifically:
+ *
+ * * Pulse duration
+ * * Drive mode: push-pull vs open-drain
+ * * Polarity: Active high or active low
+ *
+ * Pulse duration configuration is available on both the AST2400 and AST2500,
+ * though the field changes between SoCs:
+ *
+ * AST2400: Bits 7:0
+ * AST2500: Bits 19:0
+ *
+ * This difference is captured in struct aspeed_wdt_config.
+ *
+ * The AST2500 exposes the drive mode and polarity options, but not in a
+ * regular fashion. For read purposes, bit 31 represents active high or low,
+ * and bit 30 represents push-pull or open-drain. With respect to write, magic
+ * values need to be written to the top byte to change the state of the drive
+ * mode and polarity bits. Any other value written to the top byte has no
+ * effect on the state of the drive mode or polarity bits. However, the pulse
+ * width value must be preserved (as desired) if written.
+ */
+#define WDT_RESET_WIDTH		0x18
+#define   WDT_RESET_WIDTH_ACTIVE_HIGH	BIT(31)
+#define     WDT_ACTIVE_HIGH_MAGIC	(0xA5 << 24)
+#define     WDT_ACTIVE_LOW_MAGIC	(0x5A << 24)
+#define   WDT_RESET_WIDTH_PUSH_PULL	BIT(30)
+#define     WDT_PUSH_PULL_MAGIC		(0xA8 << 24)
+#define     WDT_OPEN_DRAIN_MAGIC	(0x8A << 24)
+
 #define WDT_RESTART_MAGIC	0x4755
 
 /* 32 bits at 1MHz, in milliseconds */
@@ -138,8 +183,13 @@ static const struct watchdog_info aspeed_wdt_info = {
 
 static int aspeed_wdt_probe(struct platform_device *pdev)
 {
+	const struct aspeed_wdt_config *config;
+	const struct of_device_id *ofdid;
 	struct aspeed_wdt *wdt;
 	struct resource *res;
+	struct device_node *np;
+	const char *reset_type;
+	u32 duration;
 	int ret;
 
 	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
@@ -164,20 +214,88 @@ static int aspeed_wdt_probe(struct platform_device *pdev)
 	wdt->wdd.timeout = WDT_DEFAULT_TIMEOUT;
 	watchdog_init_timeout(&wdt->wdd, 0, &pdev->dev);
 
+	np = pdev->dev.of_node;
+
+	ofdid = of_match_node(aspeed_wdt_of_table, np);
+	if (!ofdid)
+		return -EINVAL;
+	config = ofdid->data;
+
+	wdt->ctrl = WDT_CTRL_1MHZ_CLK;
+
 	/*
 	 * Control reset on a per-device basis to ensure the
-	 * host is not affected by a BMC reboot, so only reset
-	 * the SOC and not the full chip
+	 * host is not affected by a BMC reboot
 	 */
-	wdt->ctrl = WDT_CTRL_RESET_MODE_SOC |
-		WDT_CTRL_1MHZ_CLK |
-		WDT_CTRL_RESET_SYSTEM;
+	ret = of_property_read_string(np, "aspeed,reset-type", &reset_type);
+	if (ret) {
+		wdt->ctrl |= WDT_CTRL_RESET_MODE_SOC | WDT_CTRL_RESET_SYSTEM;
+	} else {
+		if (!strcmp(reset_type, "cpu"))
+			wdt->ctrl |= WDT_CTRL_RESET_MODE_ARM_CPU;
+		else if (!strcmp(reset_type, "soc"))
+			wdt->ctrl |= WDT_CTRL_RESET_MODE_SOC;
+		else if (!strcmp(reset_type, "system"))
+			wdt->ctrl |= WDT_CTRL_RESET_SYSTEM;
+		else if (strcmp(reset_type, "none"))
+			return -EINVAL;
+	}
+	if (of_property_read_bool(np, "aspeed,external-signal"))
+		wdt->ctrl |= WDT_CTRL_WDT_EXT;
+
+	writel(wdt->ctrl, wdt->base + WDT_CTRL);
 
 	if (readl(wdt->base + WDT_CTRL) & WDT_CTRL_ENABLE)  {
 		aspeed_wdt_start(&wdt->wdd);
 		set_bit(WDOG_HW_RUNNING, &wdt->wdd.status);
 	}
 
+	if (of_device_is_compatible(np, "aspeed,ast2500-wdt")) {
+		u32 reg = readl(wdt->base + WDT_RESET_WIDTH);
+
+		reg &= config->ext_pulse_width_mask;
+		if (of_property_read_bool(np, "aspeed,ext-push-pull"))
+			reg |= WDT_PUSH_PULL_MAGIC;
+		else
+			reg |= WDT_OPEN_DRAIN_MAGIC;
+
+		writel(reg, wdt->base + WDT_RESET_WIDTH);
+
+		reg &= config->ext_pulse_width_mask;
+		if (of_property_read_bool(np, "aspeed,ext-active-high"))
+			reg |= WDT_ACTIVE_HIGH_MAGIC;
+		else
+			reg |= WDT_ACTIVE_LOW_MAGIC;
+
+		writel(reg, wdt->base + WDT_RESET_WIDTH);
+	}
+
+	if (!of_property_read_u32(np, "aspeed,ext-pulse-duration", &duration)) {
+		u32 max_duration = config->ext_pulse_width_mask + 1;
+
+		if (duration == 0 || duration > max_duration) {
+			dev_err(&pdev->dev, "Invalid pulse duration: %uus\n",
+					duration);
+			duration = max(1U, min(max_duration, duration));
+			dev_info(&pdev->dev, "Pulse duration set to %uus\n",
+					duration);
+		}
+
+		/*
+		 * The watchdog is always configured with a 1MHz source, so
+		 * there is no need to scale the microsecond value. However we
+		 * need to offset it - from the datasheet:
+		 *
+		 * "This register decides the asserting duration of wdt_ext and
+		 * wdt_rstarm signal. The default value is 0xFF. It means the
+		 * default asserting duration of wdt_ext and wdt_rstarm is
+		 * 256us."
+		 *
+		 * This implies a value of 0 gives a 1us pulse.
+		 */
+		writel(duration - 1, wdt->base + WDT_RESET_WIDTH);
+	}
+
 	ret = devm_watchdog_register_device(&pdev->dev, &wdt->wdd);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register\n");
diff --git a/drivers/watchdog/bcm7038_wdt.c b/drivers/watchdog/bcm7038_wdt.c
index c1b8e534fb55..f88f546e8050 100644
--- a/drivers/watchdog/bcm7038_wdt.c
+++ b/drivers/watchdog/bcm7038_wdt.c
@@ -136,7 +136,9 @@ static int bcm7038_wdt_probe(struct platform_device *pdev)
 	wdt->clk = devm_clk_get(dev, NULL);
 	/* If unable to get clock, use default frequency */
 	if (!IS_ERR(wdt->clk)) {
-		clk_prepare_enable(wdt->clk);
+		err = clk_prepare_enable(wdt->clk);
+		if (err)
+			return err;
 		wdt->rate = clk_get_rate(wdt->clk);
 		/* Prevent divide-by-zero exception */
 		if (!wdt->rate)
diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c
index 05c000081e9d..064cf7b6c1c5 100644
--- a/drivers/watchdog/cadence_wdt.c
+++ b/drivers/watchdog/cadence_wdt.c
@@ -52,12 +52,12 @@
 static int wdt_timeout;
 static int nowayout = WATCHDOG_NOWAYOUT;
 
-module_param(wdt_timeout, int, 0);
+module_param(wdt_timeout, int, 0644);
 MODULE_PARM_DESC(wdt_timeout,
 		 "Watchdog time in seconds. (default="
 		 __MODULE_STRING(CDNS_WDT_DEFAULT_TIMEOUT) ")");
 
-module_param(nowayout, int, 0);
+module_param(nowayout, int, 0644);
 MODULE_PARM_DESC(nowayout,
 		 "Watchdog cannot be stopped once started (default="
 		 __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
@@ -368,7 +368,7 @@ static int cdns_wdt_probe(struct platform_device *pdev)
 	}
 	platform_set_drvdata(pdev, wdt);
 
-	dev_dbg(&pdev->dev, "Xilinx Watchdog Timer at %p with timeout %ds%s\n",
+	dev_info(&pdev->dev, "Xilinx Watchdog Timer at %p with timeout %ds%s\n",
 		 wdt->regs, cdns_wdt_device->timeout,
 		 nowayout ? ", nowayout" : "");
 
diff --git a/drivers/watchdog/coh901327_wdt.c b/drivers/watchdog/coh901327_wdt.c
index 38dd60f0cfcc..4410337f4f7f 100644
--- a/drivers/watchdog/coh901327_wdt.c
+++ b/drivers/watchdog/coh901327_wdt.c
@@ -218,7 +218,7 @@ static const struct watchdog_info coh901327_ident = {
 	.identity = DRV_NAME,
 };
 
-static struct watchdog_ops coh901327_ops = {
+static const struct watchdog_ops coh901327_ops = {
 	.owner = THIS_MODULE,
 	.start = coh901327_start,
 	.stop = coh901327_stop,
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 3d43775548e5..aee0b25cf10d 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -230,9 +230,9 @@ static void cpwd_resetbrokentimer(struct cpwd *p, int index)
  * interrupts within the PLD so me must continually
  * reset the timers ad infinitum.
  */
-static void cpwd_brokentimer(unsigned long data)
+static void cpwd_brokentimer(struct timer_list *unused)
 {
-	struct cpwd *p = (struct cpwd *) data;
+	struct cpwd *p = cpwd_device;
 	int id, tripped = 0;
 
 	/* kill a running timer instance, in case we
@@ -275,7 +275,7 @@ static void cpwd_stoptimer(struct cpwd *p, int index)
 
 		if (p->broken) {
 			p->devs[index].runstatus |= WD_STAT_BSTOP;
-			cpwd_brokentimer((unsigned long) p);
+			cpwd_brokentimer(NULL);
 		}
 	}
 }
@@ -608,7 +608,7 @@ static int cpwd_probe(struct platform_device *op)
 	}
 
 	if (p->broken) {
-		setup_timer(&cpwd_timer, cpwd_brokentimer, (unsigned long)p);
+		timer_setup(&cpwd_timer, cpwd_brokentimer, 0);
 		cpwd_timer.expires	= WD_BTIMEOUT;
 
 		pr_info("PLD defect workaround enabled for model %s\n",
diff --git a/drivers/watchdog/da9063_wdt.c b/drivers/watchdog/da9063_wdt.c
index 4691c5509129..2a20fc163ed0 100644
--- a/drivers/watchdog/da9063_wdt.c
+++ b/drivers/watchdog/da9063_wdt.c
@@ -36,11 +36,6 @@ static const unsigned int wdt_timeout[] = { 0, 2, 4, 8, 16, 32, 65, 131 };
 #define DA9063_WDG_TIMEOUT		wdt_timeout[3]
 #define DA9063_RESET_PROTECTION_MS	256
 
-struct da9063_watchdog {
-	struct da9063 *da9063;
-	struct watchdog_device wdtdev;
-};
-
 static unsigned int da9063_wdt_timeout_to_sel(unsigned int secs)
 {
 	unsigned int i;
@@ -61,14 +56,14 @@ static int _da9063_wdt_set_timeout(struct da9063 *da9063, unsigned int regval)
 
 static int da9063_wdt_start(struct watchdog_device *wdd)
 {
-	struct da9063_watchdog *wdt = watchdog_get_drvdata(wdd);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 	unsigned int selector;
 	int ret;
 
-	selector = da9063_wdt_timeout_to_sel(wdt->wdtdev.timeout);
-	ret = _da9063_wdt_set_timeout(wdt->da9063, selector);
+	selector = da9063_wdt_timeout_to_sel(wdd->timeout);
+	ret = _da9063_wdt_set_timeout(da9063, selector);
 	if (ret)
-		dev_err(wdt->da9063->dev, "Watchdog failed to start (err = %d)\n",
+		dev_err(da9063->dev, "Watchdog failed to start (err = %d)\n",
 			ret);
 
 	return ret;
@@ -76,13 +71,13 @@ static int da9063_wdt_start(struct watchdog_device *wdd)
 
 static int da9063_wdt_stop(struct watchdog_device *wdd)
 {
-	struct da9063_watchdog *wdt = watchdog_get_drvdata(wdd);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 	int ret;
 
-	ret = regmap_update_bits(wdt->da9063->regmap, DA9063_REG_CONTROL_D,
+	ret = regmap_update_bits(da9063->regmap, DA9063_REG_CONTROL_D,
 				 DA9063_TWDSCALE_MASK, DA9063_TWDSCALE_DISABLE);
 	if (ret)
-		dev_alert(wdt->da9063->dev, "Watchdog failed to stop (err = %d)\n",
+		dev_alert(da9063->dev, "Watchdog failed to stop (err = %d)\n",
 			  ret);
 
 	return ret;
@@ -90,13 +85,13 @@ static int da9063_wdt_stop(struct watchdog_device *wdd)
 
 static int da9063_wdt_ping(struct watchdog_device *wdd)
 {
-	struct da9063_watchdog *wdt = watchdog_get_drvdata(wdd);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 	int ret;
 
-	ret = regmap_write(wdt->da9063->regmap, DA9063_REG_CONTROL_F,
+	ret = regmap_write(da9063->regmap, DA9063_REG_CONTROL_F,
 			   DA9063_WATCHDOG);
 	if (ret)
-		dev_alert(wdt->da9063->dev, "Failed to ping the watchdog (err = %d)\n",
+		dev_alert(da9063->dev, "Failed to ping the watchdog (err = %d)\n",
 			  ret);
 
 	return ret;
@@ -105,14 +100,14 @@ static int da9063_wdt_ping(struct watchdog_device *wdd)
 static int da9063_wdt_set_timeout(struct watchdog_device *wdd,
 				  unsigned int timeout)
 {
-	struct da9063_watchdog *wdt = watchdog_get_drvdata(wdd);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 	unsigned int selector;
 	int ret;
 
 	selector = da9063_wdt_timeout_to_sel(timeout);
-	ret = _da9063_wdt_set_timeout(wdt->da9063, selector);
+	ret = _da9063_wdt_set_timeout(da9063, selector);
 	if (ret)
-		dev_err(wdt->da9063->dev, "Failed to set watchdog timeout (err = %d)\n",
+		dev_err(da9063->dev, "Failed to set watchdog timeout (err = %d)\n",
 			ret);
 	else
 		wdd->timeout = wdt_timeout[selector];
@@ -123,13 +118,13 @@ static int da9063_wdt_set_timeout(struct watchdog_device *wdd,
 static int da9063_wdt_restart(struct watchdog_device *wdd, unsigned long action,
 			      void *data)
 {
-	struct da9063_watchdog *wdt = watchdog_get_drvdata(wdd);
+	struct da9063 *da9063 = watchdog_get_drvdata(wdd);
 	int ret;
 
-	ret = regmap_write(wdt->da9063->regmap, DA9063_REG_CONTROL_F,
+	ret = regmap_write(da9063->regmap, DA9063_REG_CONTROL_F,
 			   DA9063_SHUTDOWN);
 	if (ret)
-		dev_alert(wdt->da9063->dev, "Failed to shutdown (err = %d)\n",
+		dev_alert(da9063->dev, "Failed to shutdown (err = %d)\n",
 			  ret);
 
 	return ret;
@@ -152,7 +147,7 @@ static const struct watchdog_ops da9063_watchdog_ops = {
 static int da9063_wdt_probe(struct platform_device *pdev)
 {
 	struct da9063 *da9063;
-	struct da9063_watchdog *wdt;
+	struct watchdog_device *wdd;
 
 	if (!pdev->dev.parent)
 		return -EINVAL;
@@ -161,27 +156,25 @@ static int da9063_wdt_probe(struct platform_device *pdev)
 	if (!da9063)
 		return -EINVAL;
 
-	wdt = devm_kzalloc(&pdev->dev, sizeof(*wdt), GFP_KERNEL);
-	if (!wdt)
+	wdd = devm_kzalloc(&pdev->dev, sizeof(*wdd), GFP_KERNEL);
+	if (!wdd)
 		return -ENOMEM;
 
-	wdt->da9063 = da9063;
-
-	wdt->wdtdev.info = &da9063_watchdog_info;
-	wdt->wdtdev.ops = &da9063_watchdog_ops;
-	wdt->wdtdev.min_timeout = DA9063_WDT_MIN_TIMEOUT;
-	wdt->wdtdev.max_timeout = DA9063_WDT_MAX_TIMEOUT;
-	wdt->wdtdev.min_hw_heartbeat_ms = DA9063_RESET_PROTECTION_MS;
-	wdt->wdtdev.timeout = DA9063_WDG_TIMEOUT;
-	wdt->wdtdev.parent = &pdev->dev;
+	wdd->info = &da9063_watchdog_info;
+	wdd->ops = &da9063_watchdog_ops;
+	wdd->min_timeout = DA9063_WDT_MIN_TIMEOUT;
+	wdd->max_timeout = DA9063_WDT_MAX_TIMEOUT;
+	wdd->min_hw_heartbeat_ms = DA9063_RESET_PROTECTION_MS;
+	wdd->timeout = DA9063_WDG_TIMEOUT;
+	wdd->parent = &pdev->dev;
 
-	wdt->wdtdev.status = WATCHDOG_NOWAYOUT_INIT_STATUS;
+	wdd->status = WATCHDOG_NOWAYOUT_INIT_STATUS;
 
-	watchdog_set_restart_priority(&wdt->wdtdev, 128);
+	watchdog_set_restart_priority(wdd, 128);
 
-	watchdog_set_drvdata(&wdt->wdtdev, wdt);
+	watchdog_set_drvdata(wdd, da9063);
 
-	return devm_watchdog_register_device(&pdev->dev, &wdt->wdtdev);
+	return devm_watchdog_register_device(&pdev->dev, wdd);
 }
 
 static struct platform_driver da9063_wdt_driver = {
diff --git a/drivers/watchdog/diag288_wdt.c b/drivers/watchdog/diag288_wdt.c
index 6f591084bb7a..806a04a676b7 100644
--- a/drivers/watchdog/diag288_wdt.c
+++ b/drivers/watchdog/diag288_wdt.c
@@ -213,7 +213,7 @@ static const struct watchdog_ops wdt_ops = {
 	.set_timeout = wdt_set_timeout,
 };
 
-static struct watchdog_info wdt_info = {
+static const struct watchdog_info wdt_info = {
 	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
 	.firmware_version = 0,
 	.identity = "z Watchdog",
diff --git a/drivers/watchdog/iTCO_vendor.h b/drivers/watchdog/iTCO_vendor.h
index 3c57b45537a2..7b82a7c6e7c3 100644
--- a/drivers/watchdog/iTCO_vendor.h
+++ b/drivers/watchdog/iTCO_vendor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* iTCO Vendor Specific Support hooks */
 #ifdef CONFIG_ITCO_VENDOR_SUPPORT
 extern void iTCO_vendor_pre_start(struct resource *, unsigned int);
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index c4f65873bfa4..347f0389b089 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -306,15 +306,16 @@ static int iTCO_wdt_ping(struct watchdog_device *wd_dev)
 
 	iTCO_vendor_pre_keepalive(p->smi_res, wd_dev->timeout);
 
-	/* Reset the timeout status bit so that the timer
-	 * needs to count down twice again before rebooting */
-	outw(0x0008, TCO1_STS(p));	/* write 1 to clear bit */
-
 	/* Reload the timer by writing to the TCO Timer Counter register */
-	if (p->iTCO_version >= 2)
+	if (p->iTCO_version >= 2) {
 		outw(0x01, TCO_RLD(p));
-	else if (p->iTCO_version == 1)
+	} else if (p->iTCO_version == 1) {
+		/* Reset the timeout status bit so that the timer
+		 * needs to count down twice again before rebooting */
+		outw(0x0008, TCO1_STS(p));	/* write 1 to clear bit */
+
 		outb(0x01, TCO_RLD(p));
+	}
 
 	spin_unlock(&p->io_lock);
 	return 0;
@@ -327,8 +328,11 @@ static int iTCO_wdt_set_timeout(struct watchdog_device *wd_dev, unsigned int t)
 	unsigned char val8;
 	unsigned int tmrval;
 
-	/* The timer counts down twice before rebooting */
-	tmrval = seconds_to_ticks(p, t) / 2;
+	tmrval = seconds_to_ticks(p, t);
+
+	/* For TCO v1 the timer counts down twice before rebooting */
+	if (p->iTCO_version == 1)
+		tmrval /= 2;
 
 	/* from the specs: */
 	/* "Values of 0h-3h are ignored and should not be attempted" */
@@ -381,8 +385,6 @@ static unsigned int iTCO_wdt_get_timeleft(struct watchdog_device *wd_dev)
 		spin_lock(&p->io_lock);
 		val16 = inw(TCO_RLD(p));
 		val16 &= 0x3ff;
-		if (!(inw(TCO1_STS(p)) & 0x0008))
-			val16 += (inw(TCOv2_TMR(p)) & 0x3ff);
 		spin_unlock(&p->io_lock);
 
 		time_left = ticks_to_seconds(p, val16);
diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
index dd1e7eaef50f..e96faea24925 100644
--- a/drivers/watchdog/it87_wdt.c
+++ b/drivers/watchdog/it87_wdt.c
@@ -253,7 +253,7 @@ static const struct watchdog_info ident = {
 	.identity = WATCHDOG_NAME,
 };
 
-static struct watchdog_ops wdt_ops = {
+static const struct watchdog_ops wdt_ops = {
 	.owner = THIS_MODULE,
 	.start = wdt_start,
 	.stop = wdt_stop,
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index e0823677d8c1..7f43cefa0eae 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -4,6 +4,7 @@
  *  by the Free Software Foundation.
  *
  *  Copyright (C) 2010 John Crispin <john@phrozen.org>
+ *  Copyright (C) 2017 Hauke Mehrtens <hauke@hauke-m.de>
  *  Based on EP93xx wdt driver
  */
 
@@ -17,9 +18,20 @@
 #include <linux/uaccess.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
 
 #include <lantiq_soc.h>
 
+#define LTQ_XRX_RCU_RST_STAT		0x0014
+#define LTQ_XRX_RCU_RST_STAT_WDT	BIT(31)
+
+/* CPU0 Reset Source Register */
+#define LTQ_FALCON_SYS1_CPU0RS		0x0060
+/* reset cause mask */
+#define LTQ_FALCON_SYS1_CPU0RS_MASK	0x0007
+#define LTQ_FALCON_SYS1_CPU0RS_WDT	0x02
+
 /*
  * Section 3.4 of the datasheet
  * The password sequence protects the WDT control register from unintended
@@ -186,16 +198,70 @@ static struct miscdevice ltq_wdt_miscdev = {
 	.fops	= &ltq_wdt_fops,
 };
 
+typedef int (*ltq_wdt_bootstatus_set)(struct platform_device *pdev);
+
+static int ltq_wdt_bootstatus_xrx(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct regmap *rcu_regmap;
+	u32 val;
+	int err;
+
+	rcu_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "regmap");
+	if (IS_ERR(rcu_regmap))
+		return PTR_ERR(rcu_regmap);
+
+	err = regmap_read(rcu_regmap, LTQ_XRX_RCU_RST_STAT, &val);
+	if (err)
+		return err;
+
+	if (val & LTQ_XRX_RCU_RST_STAT_WDT)
+		ltq_wdt_bootstatus = WDIOF_CARDRESET;
+
+	return 0;
+}
+
+static int ltq_wdt_bootstatus_falcon(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct regmap *rcu_regmap;
+	u32 val;
+	int err;
+
+	rcu_regmap = syscon_regmap_lookup_by_phandle(dev->of_node,
+						     "lantiq,rcu");
+	if (IS_ERR(rcu_regmap))
+		return PTR_ERR(rcu_regmap);
+
+	err = regmap_read(rcu_regmap, LTQ_FALCON_SYS1_CPU0RS, &val);
+	if (err)
+		return err;
+
+	if ((val & LTQ_FALCON_SYS1_CPU0RS_MASK) == LTQ_FALCON_SYS1_CPU0RS_WDT)
+		ltq_wdt_bootstatus = WDIOF_CARDRESET;
+
+	return 0;
+}
+
 static int
 ltq_wdt_probe(struct platform_device *pdev)
 {
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct clk *clk;
+	ltq_wdt_bootstatus_set ltq_wdt_bootstatus_set;
+	int ret;
 
 	ltq_wdt_membase = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(ltq_wdt_membase))
 		return PTR_ERR(ltq_wdt_membase);
 
+	ltq_wdt_bootstatus_set = of_device_get_match_data(&pdev->dev);
+	if (ltq_wdt_bootstatus_set) {
+		ret = ltq_wdt_bootstatus_set(pdev);
+		if (ret)
+			return ret;
+	}
+
 	/* we do not need to enable the clock as it is always running */
 	clk = clk_get_io();
 	if (IS_ERR(clk)) {
@@ -205,10 +271,6 @@ ltq_wdt_probe(struct platform_device *pdev)
 	ltq_io_region_clk_rate = clk_get_rate(clk);
 	clk_put(clk);
 
-	/* find out if the watchdog caused the last reboot */
-	if (ltq_reset_cause() == LTQ_RST_CAUSE_WDTRST)
-		ltq_wdt_bootstatus = WDIOF_CARDRESET;
-
 	dev_info(&pdev->dev, "Init done\n");
 	return misc_register(&ltq_wdt_miscdev);
 }
@@ -222,7 +284,9 @@ ltq_wdt_remove(struct platform_device *pdev)
 }
 
 static const struct of_device_id ltq_wdt_match[] = {
-	{ .compatible = "lantiq,wdt" },
+	{ .compatible = "lantiq,wdt", .data = NULL},
+	{ .compatible = "lantiq,xrx100-wdt", .data = ltq_wdt_bootstatus_xrx },
+	{ .compatible = "lantiq,falcon-wdt", .data = ltq_wdt_bootstatus_falcon },
 	{},
 };
 MODULE_DEVICE_TABLE(of, ltq_wdt_match);
diff --git a/drivers/watchdog/lpc18xx_wdt.c b/drivers/watchdog/lpc18xx_wdt.c
index 3b8bb59adf02..b4221f43cd94 100644
--- a/drivers/watchdog/lpc18xx_wdt.c
+++ b/drivers/watchdog/lpc18xx_wdt.c
@@ -78,10 +78,10 @@ static int lpc18xx_wdt_feed(struct watchdog_device *wdt_dev)
 	return 0;
 }
 
-static void lpc18xx_wdt_timer_feed(unsigned long data)
+static void lpc18xx_wdt_timer_feed(struct timer_list *t)
 {
-	struct watchdog_device *wdt_dev = (struct watchdog_device *)data;
-	struct lpc18xx_wdt_dev *lpc18xx_wdt = watchdog_get_drvdata(wdt_dev);
+	struct lpc18xx_wdt_dev *lpc18xx_wdt = from_timer(lpc18xx_wdt, t, timer);
+	struct watchdog_device *wdt_dev = &lpc18xx_wdt->wdt_dev;
 
 	lpc18xx_wdt_feed(wdt_dev);
 
@@ -96,7 +96,9 @@ static void lpc18xx_wdt_timer_feed(unsigned long data)
  */
 static int lpc18xx_wdt_stop(struct watchdog_device *wdt_dev)
 {
-	lpc18xx_wdt_timer_feed((unsigned long)wdt_dev);
+	struct lpc18xx_wdt_dev *lpc18xx_wdt = watchdog_get_drvdata(wdt_dev);
+
+	lpc18xx_wdt_timer_feed(&lpc18xx_wdt->timer);
 
 	return 0;
 }
@@ -267,8 +269,7 @@ static int lpc18xx_wdt_probe(struct platform_device *pdev)
 
 	__lpc18xx_wdt_set_timeout(lpc18xx_wdt);
 
-	setup_timer(&lpc18xx_wdt->timer, lpc18xx_wdt_timer_feed,
-		    (unsigned long)&lpc18xx_wdt->wdt_dev);
+	timer_setup(&lpc18xx_wdt->timer, lpc18xx_wdt_timer_feed, 0);
 
 	watchdog_set_nowayout(&lpc18xx_wdt->wdt_dev, nowayout);
 	watchdog_set_restart_priority(&lpc18xx_wdt->wdt_dev, 128);
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
index 9826b59ef734..8a616a57bb90 100644
--- a/drivers/watchdog/machzwd.c
+++ b/drivers/watchdog/machzwd.c
@@ -127,7 +127,7 @@ static int zf_action = GEN_RESET;
 static unsigned long zf_is_open;
 static char zf_expect_close;
 static DEFINE_SPINLOCK(zf_port_lock);
-static DEFINE_TIMER(zf_timer, zf_ping, 0, 0);
+static DEFINE_TIMER(zf_timer, zf_ping);
 static unsigned long next_heartbeat;
 
 
diff --git a/drivers/watchdog/max77620_wdt.c b/drivers/watchdog/max77620_wdt.c
index 68c41fa2be27..2c9f53eaff4f 100644
--- a/drivers/watchdog/max77620_wdt.c
+++ b/drivers/watchdog/max77620_wdt.c
@@ -201,7 +201,7 @@ static int max77620_wdt_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct platform_device_id max77620_wdt_devtype[] = {
+static const struct platform_device_id max77620_wdt_devtype[] = {
 	{ .name = "max77620-watchdog", },
 	{ },
 };
diff --git a/drivers/watchdog/mei_wdt.c b/drivers/watchdog/mei_wdt.c
index b29c6fde7473..ea60b29494fb 100644
--- a/drivers/watchdog/mei_wdt.c
+++ b/drivers/watchdog/mei_wdt.c
@@ -670,7 +670,7 @@ static int mei_wdt_remove(struct mei_cl_device *cldev)
 #define MEI_UUID_WD UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, \
 			    0x89, 0x9D, 0xA9, 0x15, 0x14, 0xCB, 0x32, 0xAB)
 
-static struct mei_cl_device_id mei_wdt_tbl[] = {
+static const struct mei_cl_device_id mei_wdt_tbl[] = {
 	{ .uuid = MEI_UUID_WD, .version = MEI_CL_VERSION_ANY },
 	/* required last entry */
 	{ }
diff --git a/drivers/watchdog/meson_wdt.c b/drivers/watchdog/meson_wdt.c
index 491b9bf13d84..304274c67735 100644
--- a/drivers/watchdog/meson_wdt.c
+++ b/drivers/watchdog/meson_wdt.c
@@ -155,7 +155,9 @@ static const struct watchdog_ops meson_wdt_ops = {
 
 static const struct of_device_id meson_wdt_dt_ids[] = {
 	{ .compatible = "amlogic,meson6-wdt", .data = &meson6_wdt_data },
+	{ .compatible = "amlogic,meson8-wdt", .data = &meson6_wdt_data },
 	{ .compatible = "amlogic,meson8b-wdt", .data = &meson8b_wdt_data },
+	{ .compatible = "amlogic,meson8m2-wdt", .data = &meson8b_wdt_data },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, meson_wdt_dt_ids);
diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c
index be86ea359eee..c9e38096ea91 100644
--- a/drivers/watchdog/mixcomwd.c
+++ b/drivers/watchdog/mixcomwd.c
@@ -105,7 +105,7 @@ static unsigned long mixcomwd_opened; /* long req'd for setbit --RR */
 
 static int watchdog_port;
 static int mixcomwd_timer_alive;
-static DEFINE_TIMER(mixcomwd_timer, mixcomwd_timerfun, 0, 0);
+static DEFINE_TIMER(mixcomwd_timer, mixcomwd_timerfun);
 static char expect_close;
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
diff --git a/drivers/watchdog/mt7621_wdt.c b/drivers/watchdog/mt7621_wdt.c
index 48a06067075d..db38f8017218 100644
--- a/drivers/watchdog/mt7621_wdt.c
+++ b/drivers/watchdog/mt7621_wdt.c
@@ -105,7 +105,7 @@ static int mt7621_wdt_bootcause(void)
 	return 0;
 }
 
-static struct watchdog_info mt7621_wdt_info = {
+static const struct watchdog_info mt7621_wdt_info = {
 	.identity = "Mediatek Watchdog",
 	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
 };
@@ -135,7 +135,7 @@ static int mt7621_wdt_probe(struct platform_device *pdev)
 	if (IS_ERR(mt7621_wdt_base))
 		return PTR_ERR(mt7621_wdt_base);
 
-	mt7621_wdt_reset = devm_reset_control_get(&pdev->dev, NULL);
+	mt7621_wdt_reset = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (!IS_ERR(mt7621_wdt_reset))
 		reset_control_deassert(mt7621_wdt_reset);
 
diff --git a/drivers/watchdog/octeon-wdt-main.c b/drivers/watchdog/octeon-wdt-main.c
index b5cdceb36cff..0ec419a3f7ed 100644
--- a/drivers/watchdog/octeon-wdt-main.c
+++ b/drivers/watchdog/octeon-wdt-main.c
@@ -1,7 +1,7 @@
 /*
  * Octeon Watchdog driver
  *
- * Copyright (C) 2007, 2008, 2009, 2010 Cavium Networks
+ * Copyright (C) 2007-2017 Cavium, Inc.
  *
  * Converted to use WATCHDOG_CORE by Aaro Koskinen <aaro.koskinen@iki.fi>.
  *
@@ -59,20 +59,23 @@
 #include <linux/interrupt.h>
 #include <linux/watchdog.h>
 #include <linux/cpumask.h>
-#include <linux/bitops.h>
-#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/string.h>
 #include <linux/delay.h>
 #include <linux/cpu.h>
-#include <linux/smp.h>
-#include <linux/fs.h>
 #include <linux/irq.h>
 
 #include <asm/mipsregs.h>
 #include <asm/uasm.h>
 
 #include <asm/octeon/octeon.h>
+#include <asm/octeon/cvmx-boot-vector.h>
+#include <asm/octeon/cvmx-ciu2-defs.h>
+#include <asm/octeon/cvmx-rst-defs.h>
+
+/* Watchdog interrupt major block number (8 MSBs of intsn) */
+#define WD_BLOCK_NUMBER		0x01
+
+static int divisor;
 
 /* The count needed to achieve timeout_sec. */
 static unsigned int timeout_cnt;
@@ -84,7 +87,7 @@ static unsigned int max_timeout_sec;
 static unsigned int timeout_sec;
 
 /* Set to non-zero when userspace countdown mode active */
-static int do_coundown;
+static bool do_countdown;
 static unsigned int countdown_reset;
 static unsigned int per_cpu_countdown[NR_CPUS];
 
@@ -92,152 +95,38 @@ static cpumask_t irq_enabled_cpus;
 
 #define WD_TIMO 60			/* Default heartbeat = 60 seconds */
 
+#define CVMX_GSERX_SCRATCH(offset) (CVMX_ADD_IO_SEG(0x0001180090000020ull) + ((offset) & 15) * 0x1000000ull)
+
 static int heartbeat = WD_TIMO;
-module_param(heartbeat, int, S_IRUGO);
+module_param(heartbeat, int, 0444);
 MODULE_PARM_DESC(heartbeat,
 	"Watchdog heartbeat in seconds. (0 < heartbeat, default="
 				__MODULE_STRING(WD_TIMO) ")");
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, bool, S_IRUGO);
+module_param(nowayout, bool, 0444);
 MODULE_PARM_DESC(nowayout,
 	"Watchdog cannot be stopped once started (default="
 				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
-static u32 nmi_stage1_insns[64] __initdata;
-/* We need one branch and therefore one relocation per target label. */
-static struct uasm_label labels[5] __initdata;
-static struct uasm_reloc relocs[5] __initdata;
-
-enum lable_id {
-	label_enter_bootloader = 1
-};
+static int disable;
+module_param(disable, int, 0444);
+MODULE_PARM_DESC(disable,
+	"Disable the watchdog entirely (default=0)");
 
-/* Some CP0 registers */
-#define K0		26
-#define C0_CVMMEMCTL 11, 7
-#define C0_STATUS 12, 0
-#define C0_EBASE 15, 1
-#define C0_DESAVE 31, 0
+static struct cvmx_boot_vector_element *octeon_wdt_bootvector;
 
 void octeon_wdt_nmi_stage2(void);
 
-static void __init octeon_wdt_build_stage1(void)
-{
-	int i;
-	int len;
-	u32 *p = nmi_stage1_insns;
-#ifdef CONFIG_HOTPLUG_CPU
-	struct uasm_label *l = labels;
-	struct uasm_reloc *r = relocs;
-#endif
-
-	/*
-	 * For the next few instructions running the debugger may
-	 * cause corruption of k0 in the saved registers. Since we're
-	 * about to crash, nobody probably cares.
-	 *
-	 * Save K0 into the debug scratch register
-	 */
-	uasm_i_dmtc0(&p, K0, C0_DESAVE);
-
-	uasm_i_mfc0(&p, K0, C0_STATUS);
-#ifdef CONFIG_HOTPLUG_CPU
-	if (octeon_bootloader_entry_addr)
-		uasm_il_bbit0(&p, &r, K0, ilog2(ST0_NMI),
-			      label_enter_bootloader);
-#endif
-	/* Force 64-bit addressing enabled */
-	uasm_i_ori(&p, K0, K0, ST0_UX | ST0_SX | ST0_KX);
-	uasm_i_mtc0(&p, K0, C0_STATUS);
-
-#ifdef CONFIG_HOTPLUG_CPU
-	if (octeon_bootloader_entry_addr) {
-		uasm_i_mfc0(&p, K0, C0_EBASE);
-		/* Coreid number in K0 */
-		uasm_i_andi(&p, K0, K0, 0xf);
-		/* 8 * coreid in bits 16-31 */
-		uasm_i_dsll_safe(&p, K0, K0, 3 + 16);
-		uasm_i_ori(&p, K0, K0, 0x8001);
-		uasm_i_dsll_safe(&p, K0, K0, 16);
-		uasm_i_ori(&p, K0, K0, 0x0700);
-		uasm_i_drotr_safe(&p, K0, K0, 32);
-		/*
-		 * Should result in: 0x8001,0700,0000,8*coreid which is
-		 * CVMX_CIU_WDOGX(coreid) - 0x0500
-		 *
-		 * Now ld K0, CVMX_CIU_WDOGX(coreid)
-		 */
-		uasm_i_ld(&p, K0, 0x500, K0);
-		/*
-		 * If bit one set handle the NMI as a watchdog event.
-		 * otherwise transfer control to bootloader.
-		 */
-		uasm_il_bbit0(&p, &r, K0, 1, label_enter_bootloader);
-		uasm_i_nop(&p);
-	}
-#endif
-
-	/* Clear Dcache so cvmseg works right. */
-	uasm_i_cache(&p, 1, 0, 0);
-
-	/* Use K0 to do a read/modify/write of CVMMEMCTL */
-	uasm_i_dmfc0(&p, K0, C0_CVMMEMCTL);
-	/* Clear out the size of CVMSEG	*/
-	uasm_i_dins(&p, K0, 0, 0, 6);
-	/* Set CVMSEG to its largest value */
-	uasm_i_ori(&p, K0, K0, 0x1c0 | 54);
-	/* Store the CVMMEMCTL value */
-	uasm_i_dmtc0(&p, K0, C0_CVMMEMCTL);
-
-	/* Load the address of the second stage handler */
-	UASM_i_LA(&p, K0, (long)octeon_wdt_nmi_stage2);
-	uasm_i_jr(&p, K0);
-	uasm_i_dmfc0(&p, K0, C0_DESAVE);
-
-#ifdef CONFIG_HOTPLUG_CPU
-	if (octeon_bootloader_entry_addr) {
-		uasm_build_label(&l, p, label_enter_bootloader);
-		/* Jump to the bootloader and restore K0 */
-		UASM_i_LA(&p, K0, (long)octeon_bootloader_entry_addr);
-		uasm_i_jr(&p, K0);
-		uasm_i_dmfc0(&p, K0, C0_DESAVE);
-	}
-#endif
-	uasm_resolve_relocs(relocs, labels);
-
-	len = (int)(p - nmi_stage1_insns);
-	pr_debug("Synthesized NMI stage 1 handler (%d instructions)\n", len);
-
-	pr_debug("\t.set push\n");
-	pr_debug("\t.set noreorder\n");
-	for (i = 0; i < len; i++)
-		pr_debug("\t.word 0x%08x\n", nmi_stage1_insns[i]);
-	pr_debug("\t.set pop\n");
-
-	if (len > 32)
-		panic("NMI stage 1 handler exceeds 32 instructions, was %d\n",
-		      len);
-}
-
 static int cpu2core(int cpu)
 {
 #ifdef CONFIG_SMP
-	return cpu_logical_map(cpu);
+	return cpu_logical_map(cpu) & 0x3f;
 #else
 	return cvmx_get_core_num();
 #endif
 }
 
-static int core2cpu(int coreid)
-{
-#ifdef CONFIG_SMP
-	return cpu_number_map(coreid);
-#else
-	return 0;
-#endif
-}
-
 /**
  * Poke the watchdog when an interrupt is received
  *
@@ -248,13 +137,14 @@ static int core2cpu(int coreid)
  */
 static irqreturn_t octeon_wdt_poke_irq(int cpl, void *dev_id)
 {
-	unsigned int core = cvmx_get_core_num();
-	int cpu = core2cpu(core);
+	int cpu = raw_smp_processor_id();
+	unsigned int core = cpu2core(cpu);
+	int node = cpu_to_node(cpu);
 
-	if (do_coundown) {
+	if (do_countdown) {
 		if (per_cpu_countdown[cpu] > 0) {
 			/* We're alive, poke the watchdog */
-			cvmx_write_csr(CVMX_CIU_PP_POKEX(core), 1);
+			cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(core), 1);
 			per_cpu_countdown[cpu]--;
 		} else {
 			/* Bad news, you are about to reboot. */
@@ -263,7 +153,7 @@ static irqreturn_t octeon_wdt_poke_irq(int cpl, void *dev_id)
 		}
 	} else {
 		/* Not open, just ping away... */
-		cvmx_write_csr(CVMX_CIU_PP_POKEX(core), 1);
+		cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(core), 1);
 	}
 	return IRQ_HANDLED;
 }
@@ -338,10 +228,10 @@ void octeon_wdt_nmi_stage3(u64 reg[32])
 	u64 cp0_epc = read_c0_epc();
 
 	/* Delay so output from all cores output is not jumbled together. */
-	__delay(100000000ull * coreid);
+	udelay(85000 * coreid);
 
 	octeon_wdt_write_string("\r\n*** NMI Watchdog interrupt on Core 0x");
-	octeon_wdt_write_hex(coreid, 1);
+	octeon_wdt_write_hex(coreid, 2);
 	octeon_wdt_write_string(" ***\r\n");
 	for (i = 0; i < 32; i++) {
 		octeon_wdt_write_string("\t");
@@ -364,33 +254,98 @@ void octeon_wdt_nmi_stage3(u64 reg[32])
 	octeon_wdt_write_hex(cp0_cause, 16);
 	octeon_wdt_write_string("\r\n");
 
-	octeon_wdt_write_string("\tsum0\t0x");
-	octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU_INTX_SUM0(coreid * 2)), 16);
-	octeon_wdt_write_string("\ten0\t0x");
-	octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2)), 16);
-	octeon_wdt_write_string("\r\n");
+	/* The CIU register is different for each Octeon model. */
+	if (OCTEON_IS_MODEL(OCTEON_CN68XX)) {
+		octeon_wdt_write_string("\tsrc_wd\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU2_SRC_PPX_IP2_WDOG(coreid)), 16);
+		octeon_wdt_write_string("\ten_wd\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU2_EN_PPX_IP2_WDOG(coreid)), 16);
+		octeon_wdt_write_string("\r\n");
+		octeon_wdt_write_string("\tsrc_rml\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU2_SRC_PPX_IP2_RML(coreid)), 16);
+		octeon_wdt_write_string("\ten_rml\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU2_EN_PPX_IP2_RML(coreid)), 16);
+		octeon_wdt_write_string("\r\n");
+		octeon_wdt_write_string("\tsum\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU2_SUM_PPX_IP2(coreid)), 16);
+		octeon_wdt_write_string("\r\n");
+	} else if (!octeon_has_feature(OCTEON_FEATURE_CIU3)) {
+		octeon_wdt_write_string("\tsum0\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU_INTX_SUM0(coreid * 2)), 16);
+		octeon_wdt_write_string("\ten0\t0x");
+		octeon_wdt_write_hex(cvmx_read_csr(CVMX_CIU_INTX_EN0(coreid * 2)), 16);
+		octeon_wdt_write_string("\r\n");
+	}
 
 	octeon_wdt_write_string("*** Chip soft reset soon ***\r\n");
+
+	/*
+	 * G-30204: We must trigger a soft reset before watchdog
+	 * does an incomplete job of doing it.
+	 */
+	if (OCTEON_IS_OCTEON3() && !OCTEON_IS_MODEL(OCTEON_CN70XX)) {
+		u64 scr;
+		unsigned int node = cvmx_get_node_num();
+		unsigned int lcore = cvmx_get_local_core_num();
+		union cvmx_ciu_wdogx ciu_wdog;
+
+		/*
+		 * Wait for other cores to print out information, but
+		 * not too long.  Do the soft reset before watchdog
+		 * can trigger it.
+		 */
+		do {
+			ciu_wdog.u64 = cvmx_read_csr_node(node, CVMX_CIU_WDOGX(lcore));
+		} while (ciu_wdog.s.cnt > 0x10000);
+
+		scr = cvmx_read_csr_node(0, CVMX_GSERX_SCRATCH(0));
+		scr |= 1 << 11; /* Indicate watchdog in bit 11 */
+		cvmx_write_csr_node(0, CVMX_GSERX_SCRATCH(0), scr);
+		cvmx_write_csr_node(0, CVMX_RST_SOFT_RST, 1);
+	}
+}
+
+static int octeon_wdt_cpu_to_irq(int cpu)
+{
+	unsigned int coreid;
+	int node;
+	int irq;
+
+	coreid = cpu2core(cpu);
+	node = cpu_to_node(cpu);
+
+	if (octeon_has_feature(OCTEON_FEATURE_CIU3)) {
+		struct irq_domain *domain;
+		int hwirq;
+
+		domain = octeon_irq_get_block_domain(node,
+						     WD_BLOCK_NUMBER);
+		hwirq = WD_BLOCK_NUMBER << 12 | 0x200 | coreid;
+		irq = irq_find_mapping(domain, hwirq);
+	} else {
+		irq = OCTEON_IRQ_WDOG0 + coreid;
+	}
+	return irq;
 }
 
 static int octeon_wdt_cpu_pre_down(unsigned int cpu)
 {
 	unsigned int core;
-	unsigned int irq;
+	int node;
 	union cvmx_ciu_wdogx ciu_wdog;
 
 	core = cpu2core(cpu);
 
-	irq = OCTEON_IRQ_WDOG0 + core;
+	node = cpu_to_node(cpu);
 
 	/* Poke the watchdog to clear out its state */
-	cvmx_write_csr(CVMX_CIU_PP_POKEX(core), 1);
+	cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(core), 1);
 
 	/* Disable the hardware. */
 	ciu_wdog.u64 = 0;
-	cvmx_write_csr(CVMX_CIU_WDOGX(core), ciu_wdog.u64);
+	cvmx_write_csr_node(node, CVMX_CIU_WDOGX(core), ciu_wdog.u64);
 
-	free_irq(irq, octeon_wdt_poke_irq);
+	free_irq(octeon_wdt_cpu_to_irq(cpu), octeon_wdt_poke_irq);
 	return 0;
 }
 
@@ -399,31 +354,56 @@ static int octeon_wdt_cpu_online(unsigned int cpu)
 	unsigned int core;
 	unsigned int irq;
 	union cvmx_ciu_wdogx ciu_wdog;
+	int node;
+	struct irq_domain *domain;
+	int hwirq;
 
 	core = cpu2core(cpu);
+	node = cpu_to_node(cpu);
+
+	octeon_wdt_bootvector[core].target_ptr = (u64)octeon_wdt_nmi_stage2;
 
 	/* Disable it before doing anything with the interrupts. */
 	ciu_wdog.u64 = 0;
-	cvmx_write_csr(CVMX_CIU_WDOGX(core), ciu_wdog.u64);
+	cvmx_write_csr_node(node, CVMX_CIU_WDOGX(core), ciu_wdog.u64);
 
 	per_cpu_countdown[cpu] = countdown_reset;
 
-	irq = OCTEON_IRQ_WDOG0 + core;
+	if (octeon_has_feature(OCTEON_FEATURE_CIU3)) {
+		/* Must get the domain for the watchdog block */
+		domain = octeon_irq_get_block_domain(node, WD_BLOCK_NUMBER);
+
+		/* Get a irq for the wd intsn (hardware interrupt) */
+		hwirq = WD_BLOCK_NUMBER << 12 | 0x200 | core;
+		irq = irq_create_mapping(domain, hwirq);
+		irqd_set_trigger_type(irq_get_irq_data(irq),
+				      IRQ_TYPE_EDGE_RISING);
+	} else
+		irq = OCTEON_IRQ_WDOG0 + core;
 
 	if (request_irq(irq, octeon_wdt_poke_irq,
 			IRQF_NO_THREAD, "octeon_wdt", octeon_wdt_poke_irq))
 		panic("octeon_wdt: Couldn't obtain irq %d", irq);
 
+	/* Must set the irq affinity here */
+	if (octeon_has_feature(OCTEON_FEATURE_CIU3)) {
+		cpumask_t mask;
+
+		cpumask_clear(&mask);
+		cpumask_set_cpu(cpu, &mask);
+		irq_set_affinity(irq, &mask);
+	}
+
 	cpumask_set_cpu(cpu, &irq_enabled_cpus);
 
 	/* Poke the watchdog to clear out its state */
-	cvmx_write_csr(CVMX_CIU_PP_POKEX(core), 1);
+	cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(core), 1);
 
 	/* Finally enable the watchdog now that all handlers are installed */
 	ciu_wdog.u64 = 0;
 	ciu_wdog.s.len = timeout_cnt;
 	ciu_wdog.s.mode = 3;	/* 3 = Interrupt + NMI + Soft-Reset */
-	cvmx_write_csr(CVMX_CIU_WDOGX(core), ciu_wdog.u64);
+	cvmx_write_csr_node(node, CVMX_CIU_WDOGX(core), ciu_wdog.u64);
 
 	return 0;
 }
@@ -432,17 +412,20 @@ static int octeon_wdt_ping(struct watchdog_device __always_unused *wdog)
 {
 	int cpu;
 	int coreid;
+	int node;
+
+	if (disable)
+		return 0;
 
 	for_each_online_cpu(cpu) {
 		coreid = cpu2core(cpu);
-		cvmx_write_csr(CVMX_CIU_PP_POKEX(coreid), 1);
+		node = cpu_to_node(cpu);
+		cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(coreid), 1);
 		per_cpu_countdown[cpu] = countdown_reset;
-		if ((countdown_reset || !do_coundown) &&
+		if ((countdown_reset || !do_countdown) &&
 		    !cpumask_test_cpu(cpu, &irq_enabled_cpus)) {
 			/* We have to enable the irq */
-			int irq = OCTEON_IRQ_WDOG0 + coreid;
-
-			enable_irq(irq);
+			enable_irq(octeon_wdt_cpu_to_irq(cpu));
 			cpumask_set_cpu(cpu, &irq_enabled_cpus);
 		}
 	}
@@ -472,7 +455,7 @@ static void octeon_wdt_calc_parameters(int t)
 
 	countdown_reset = periods > 2 ? periods - 2 : 0;
 	heartbeat = t;
-	timeout_cnt = ((octeon_get_io_clock_rate() >> 8) * timeout_sec) >> 8;
+	timeout_cnt = ((octeon_get_io_clock_rate() / divisor) * timeout_sec) >> 8;
 }
 
 static int octeon_wdt_set_timeout(struct watchdog_device *wdog,
@@ -481,20 +464,25 @@ static int octeon_wdt_set_timeout(struct watchdog_device *wdog,
 	int cpu;
 	int coreid;
 	union cvmx_ciu_wdogx ciu_wdog;
+	int node;
 
 	if (t <= 0)
 		return -1;
 
 	octeon_wdt_calc_parameters(t);
 
+	if (disable)
+		return 0;
+
 	for_each_online_cpu(cpu) {
 		coreid = cpu2core(cpu);
-		cvmx_write_csr(CVMX_CIU_PP_POKEX(coreid), 1);
+		node = cpu_to_node(cpu);
+		cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(coreid), 1);
 		ciu_wdog.u64 = 0;
 		ciu_wdog.s.len = timeout_cnt;
 		ciu_wdog.s.mode = 3;	/* 3 = Interrupt + NMI + Soft-Reset */
-		cvmx_write_csr(CVMX_CIU_WDOGX(coreid), ciu_wdog.u64);
-		cvmx_write_csr(CVMX_CIU_PP_POKEX(coreid), 1);
+		cvmx_write_csr_node(node, CVMX_CIU_WDOGX(coreid), ciu_wdog.u64);
+		cvmx_write_csr_node(node, CVMX_CIU_PP_POKEX(coreid), 1);
 	}
 	octeon_wdt_ping(wdog); /* Get the irqs back on. */
 	return 0;
@@ -503,13 +491,13 @@ static int octeon_wdt_set_timeout(struct watchdog_device *wdog,
 static int octeon_wdt_start(struct watchdog_device *wdog)
 {
 	octeon_wdt_ping(wdog);
-	do_coundown = 1;
+	do_countdown = 1;
 	return 0;
 }
 
 static int octeon_wdt_stop(struct watchdog_device *wdog)
 {
-	do_coundown = 0;
+	do_countdown = 0;
 	octeon_wdt_ping(wdog);
 	return 0;
 }
@@ -540,14 +528,25 @@ static enum cpuhp_state octeon_wdt_online;
  */
 static int __init octeon_wdt_init(void)
 {
-	int i;
 	int ret;
-	u64 *ptr;
+
+	octeon_wdt_bootvector = cvmx_boot_vector_get();
+	if (!octeon_wdt_bootvector) {
+		pr_err("Error: Cannot allocate boot vector.\n");
+		return -ENOMEM;
+	}
+
+	if (OCTEON_IS_MODEL(OCTEON_CN68XX))
+		divisor = 0x200;
+	else if (OCTEON_IS_MODEL(OCTEON_CN78XX))
+		divisor = 0x400;
+	else
+		divisor = 0x100;
 
 	/*
 	 * Watchdog time expiration length = The 16 bits of LEN
 	 * represent the most significant bits of a 24 bit decrementer
-	 * that decrements every 256 cycles.
+	 * that decrements every divisor cycle.
 	 *
 	 * Try for a timeout of 5 sec, if that fails a smaller number
 	 * of even seconds,
@@ -555,8 +554,7 @@ static int __init octeon_wdt_init(void)
 	max_timeout_sec = 6;
 	do {
 		max_timeout_sec--;
-		timeout_cnt = ((octeon_get_io_clock_rate() >> 8) *
-			      max_timeout_sec) >> 8;
+		timeout_cnt = ((octeon_get_io_clock_rate() / divisor) * max_timeout_sec) >> 8;
 	} while (timeout_cnt > 65535);
 
 	BUG_ON(timeout_cnt == 0);
@@ -576,16 +574,10 @@ static int __init octeon_wdt_init(void)
 		return ret;
 	}
 
-	/* Build the NMI handler ... */
-	octeon_wdt_build_stage1();
-
-	/* ... and install it. */
-	ptr = (u64 *) nmi_stage1_insns;
-	for (i = 0; i < 16; i++) {
-		cvmx_write_csr(CVMX_MIO_BOOT_LOC_ADR, i * 8);
-		cvmx_write_csr(CVMX_MIO_BOOT_LOC_DAT, ptr[i]);
+	if (disable) {
+		pr_notice("disabled\n");
+		return 0;
 	}
-	cvmx_write_csr(CVMX_MIO_BOOT_LOC_CFGX(0), 0x81fc0000);
 
 	cpumask_clear(&irq_enabled_cpus);
 
@@ -607,6 +599,10 @@ err:
 static void __exit octeon_wdt_cleanup(void)
 {
 	watchdog_unregister_device(&octeon_wdt);
+
+	if (disable)
+		return;
+
 	cpuhp_remove_state(octeon_wdt_online);
 
 	/*
@@ -617,7 +613,7 @@ static void __exit octeon_wdt_cleanup(void)
 }
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Cavium Networks <support@caviumnetworks.com>");
-MODULE_DESCRIPTION("Cavium Networks Octeon Watchdog driver.");
+MODULE_AUTHOR("Cavium Inc. <support@cavium.com>");
+MODULE_DESCRIPTION("Cavium Inc. OCTEON Watchdog driver.");
 module_init(octeon_wdt_init);
 module_exit(octeon_wdt_cleanup);
diff --git a/drivers/watchdog/octeon-wdt-nmi.S b/drivers/watchdog/octeon-wdt-nmi.S
index 8a900a5e3233..97f6eb7b5a8e 100644
--- a/drivers/watchdog/octeon-wdt-nmi.S
+++ b/drivers/watchdog/octeon-wdt-nmi.S
@@ -3,20 +3,40 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2007 Cavium Networks
+ * Copyright (C) 2007-2017 Cavium, Inc.
  */
 #include <asm/asm.h>
 #include <asm/regdef.h>
 
-#define SAVE_REG(r)	sd $r, -32768+6912-(32-r)*8($0)
+#define CVMSEG_BASE	-32768
+#define CVMSEG_SIZE	6912
+#define SAVE_REG(r)	sd $r, CVMSEG_BASE + CVMSEG_SIZE - ((32 - r) * 8)($0)
 
         NESTED(octeon_wdt_nmi_stage2, 0, sp)
 	.set 	push
 	.set 	noreorder
 	.set 	noat
-	/* Save all registers to the top CVMSEG. This shouldn't
+	/* Clear Dcache so cvmseg works right. */
+	cache	1,0($0)
+	/* Use K0 to do a read/modify/write of CVMMEMCTL */
+	dmfc0	k0, $11, 7
+	/* Clear out the size of CVMSEG	*/
+	dins	k0, $0, 0, 6
+	/* Set CVMSEG to its largest value */
+	ori	k0, k0, 0x1c0 | 54
+	/* Store the CVMMEMCTL value */
+	dmtc0	k0, $11, 7
+	/*
+	 * Restore K0 from the debug scratch register, it was saved in
+	 * the boot-vector code.
+	 */
+	dmfc0	k0, $31
+
+	/*
+	 * Save all registers to the top CVMSEG. This shouldn't
 	 * corrupt any state used by the kernel. Also all registers
-	 * should have the value right before the NMI. */
+	 * should have the value right before the NMI.
+	 */
 	SAVE_REG(0)
 	SAVE_REG(1)
 	SAVE_REG(2)
@@ -49,16 +69,22 @@
 	SAVE_REG(29)
 	SAVE_REG(30)
 	SAVE_REG(31)
+	/* Write zero to all CVMSEG locations per Core-15169 */
+	dli	a0, CVMSEG_SIZE - (33 * 8)
+1:	sd	zero, CVMSEG_BASE(a0)
+	daddiu	a0, a0, -8
+	bgez	a0, 1b
+	nop
 	/* Set the stack to begin right below the registers */
-	li	sp, -32768+6912-32*8
+	dli	sp, CVMSEG_BASE + CVMSEG_SIZE - (32 * 8)
 	/* Load the address of the third stage handler */
-	dla	a0, octeon_wdt_nmi_stage3
+	dla	$25, octeon_wdt_nmi_stage3
 	/* Call the third stage handler */
-	jal	a0
+	jal	$25
 	/* a0 is the address of the saved registers */
 	 move	a0, sp
 	/* Loop forvever if we get here. */
-1:	b	1b
+2:	b	2b
 	nop
 	.set pop
 	END(octeon_wdt_nmi_stage2)
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index fae7fe929ea3..1cf286945b7a 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -51,9 +51,16 @@ struct xwdt_device {
 
 static int xilinx_wdt_start(struct watchdog_device *wdd)
 {
+	int ret;
 	u32 control_status_reg;
 	struct xwdt_device *xdev = watchdog_get_drvdata(wdd);
 
+	ret = clk_enable(xdev->clk);
+	if (ret) {
+		dev_err(wdd->parent, "Failed to enable clock\n");
+		return ret;
+	}
+
 	spin_lock(&xdev->spinlock);
 
 	/* Clean previous status and enable the watchdog timer */
@@ -85,6 +92,9 @@ static int xilinx_wdt_stop(struct watchdog_device *wdd)
 	iowrite32(0, xdev->base + XWT_TWCSR1_OFFSET);
 
 	spin_unlock(&xdev->spinlock);
+
+	clk_disable(xdev->clk);
+
 	pr_info("Stopped!\n");
 
 	return 0;
@@ -167,11 +177,6 @@ static int xwdt_probe(struct platform_device *pdev)
 	if (IS_ERR(xdev->base))
 		return PTR_ERR(xdev->base);
 
-	rc = of_property_read_u32(pdev->dev.of_node, "clock-frequency", &pfreq);
-	if (rc)
-		dev_warn(&pdev->dev,
-			 "The watchdog clock frequency cannot be obtained\n");
-
 	rc = of_property_read_u32(pdev->dev.of_node, "xlnx,wdt-interval",
 				  &xdev->wdt_interval);
 	if (rc)
@@ -186,6 +191,26 @@ static int xwdt_probe(struct platform_device *pdev)
 
 	watchdog_set_nowayout(xilinx_wdt_wdd, enable_once);
 
+	xdev->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(xdev->clk)) {
+		if (PTR_ERR(xdev->clk) != -ENOENT)
+			return PTR_ERR(xdev->clk);
+
+		/*
+		 * Clock framework support is optional, continue on
+		 * anyways if we don't find a matching clock.
+		 */
+		xdev->clk = NULL;
+
+		rc = of_property_read_u32(pdev->dev.of_node, "clock-frequency",
+					  &pfreq);
+		if (rc)
+			dev_warn(&pdev->dev,
+				 "The watchdog clock freq cannot be obtained\n");
+	} else {
+		pfreq = clk_get_rate(xdev->clk);
+	}
+
 	/*
 	 * Twice of the 2^wdt_interval / freq  because the first wdt overflow is
 	 * ignored (interrupt), reset is only generated at second wdt overflow
@@ -197,14 +222,6 @@ static int xwdt_probe(struct platform_device *pdev)
 	spin_lock_init(&xdev->spinlock);
 	watchdog_set_drvdata(xilinx_wdt_wdd, xdev);
 
-	xdev->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(xdev->clk)) {
-		if (PTR_ERR(xdev->clk) == -ENOENT)
-			xdev->clk = NULL;
-		else
-			return PTR_ERR(xdev->clk);
-	}
-
 	rc = clk_prepare_enable(xdev->clk);
 	if (rc) {
 		dev_err(&pdev->dev, "unable to enable clock\n");
@@ -223,6 +240,8 @@ static int xwdt_probe(struct platform_device *pdev)
 		goto err_clk_disable;
 	}
 
+	clk_disable(xdev->clk);
+
 	dev_info(&pdev->dev, "Xilinx Watchdog Timer at %p with timeout %ds\n",
 		 xdev->base, xilinx_wdt_wdd->timeout);
 
@@ -245,6 +264,43 @@ static int xwdt_remove(struct platform_device *pdev)
 	return 0;
 }
 
+/**
+ * xwdt_suspend - Suspend the device.
+ *
+ * @dev: handle to the device structure.
+ * Return: 0 always.
+ */
+static int __maybe_unused xwdt_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct xwdt_device *xdev = platform_get_drvdata(pdev);
+
+	if (watchdog_active(&xdev->xilinx_wdt_wdd))
+		xilinx_wdt_stop(&xdev->xilinx_wdt_wdd);
+
+	return 0;
+}
+
+/**
+ * xwdt_resume - Resume the device.
+ *
+ * @dev: handle to the device structure.
+ * Return: 0 on success, errno otherwise.
+ */
+static int __maybe_unused xwdt_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct xwdt_device *xdev = platform_get_drvdata(pdev);
+	int ret = 0;
+
+	if (watchdog_active(&xdev->xilinx_wdt_wdd))
+		ret = xilinx_wdt_start(&xdev->xilinx_wdt_wdd);
+
+	return ret;
+}
+
+static SIMPLE_DEV_PM_OPS(xwdt_pm_ops, xwdt_suspend, xwdt_resume);
+
 /* Match table for of_platform binding */
 static const struct of_device_id xwdt_of_match[] = {
 	{ .compatible = "xlnx,xps-timebase-wdt-1.00.a", },
@@ -259,6 +315,7 @@ static struct platform_driver xwdt_driver = {
 	.driver = {
 		.name  = WATCHDOG_NAME,
 		.of_match_table = xwdt_of_match,
+		.pm = &xwdt_pm_ops,
 	},
 };
 
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 5615f4013924..b9e376c8e2e3 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -74,7 +74,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 #define USB_PCWD_PRODUCT_ID	0x1140
 
 /* table of devices that work with this driver */
-static struct usb_device_id usb_pcwd_table[] = {
+static const struct usb_device_id usb_pcwd_table[] = {
 	{ USB_DEVICE(USB_PCWD_VENDOR_ID, USB_PCWD_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
diff --git a/drivers/watchdog/qcom-wdt.c b/drivers/watchdog/qcom-wdt.c
index 4f47b5e90956..780971318810 100644
--- a/drivers/watchdog/qcom-wdt.c
+++ b/drivers/watchdog/qcom-wdt.c
@@ -162,6 +162,8 @@ static int qcom_wdt_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENOMEM;
 
 	/* We use CPU0's DGT for the watchdog */
 	if (of_property_read_u32(np, "cpu-offset", &percpu_offset))
diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index cf61c92f7ecd..831ef83f6de1 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -1,8 +1,8 @@
 /*
  * Watchdog driver for Renesas WDT watchdog
  *
- * Copyright (C) 2015-16 Wolfram Sang, Sang Engineering <wsa@sang-engineering.com>
- * Copyright (C) 2015-16 Renesas Electronics Corporation
+ * Copyright (C) 2015-17 Wolfram Sang, Sang Engineering <wsa@sang-engineering.com>
+ * Copyright (C) 2015-17 Renesas Electronics Corporation
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 as published by
@@ -23,10 +23,22 @@
 #define RWTCSRA_WOVF	BIT(4)
 #define RWTCSRA_WRFLG	BIT(5)
 #define RWTCSRA_TME	BIT(7)
+#define RWTCSRB		8
 
 #define RWDT_DEFAULT_TIMEOUT 60U
 
-static const unsigned int clk_divs[] = { 1, 4, 16, 32, 64, 128, 1024 };
+/*
+ * In probe, clk_rate is checked to be not more than 16 bit * biggest clock
+ * divider (12 bits). d is only a factor to fully utilize the WDT counter and
+ * will not exceed its 16 bits. Thus, no overflow, we stay below 32 bits.
+ */
+#define MUL_BY_CLKS_PER_SEC(p, d) \
+	DIV_ROUND_UP((d) * (p)->clk_rate, clk_divs[(p)->cks])
+
+/* d is 16 bit, clk_divs 12 bit -> no 32 bit overflow */
+#define DIV_BY_CLKS_PER_SEC(p, d) ((d) * clk_divs[(p)->cks] / (p)->clk_rate)
+
+static const unsigned int clk_divs[] = { 1, 4, 16, 32, 64, 128, 1024, 4096 };
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
 module_param(nowayout, bool, 0);
@@ -36,8 +48,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 struct rwdt_priv {
 	void __iomem *base;
 	struct watchdog_device wdev;
-	struct clk *clk;
-	unsigned int clks_per_sec;
+	unsigned long clk_rate;
 	u8 cks;
 };
 
@@ -55,7 +66,7 @@ static int rwdt_init_timeout(struct watchdog_device *wdev)
 {
 	struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
 
-	rwdt_write(priv, 65536 - wdev->timeout * priv->clks_per_sec, RWTCNT);
+	rwdt_write(priv, 65536 - MUL_BY_CLKS_PER_SEC(priv, wdev->timeout), RWTCNT);
 
 	return 0;
 }
@@ -64,8 +75,9 @@ static int rwdt_start(struct watchdog_device *wdev)
 {
 	struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
 
-	clk_prepare_enable(priv->clk);
+	pm_runtime_get_sync(wdev->parent);
 
+	rwdt_write(priv, 0, RWTCSRB);
 	rwdt_write(priv, priv->cks, RWTCSRA);
 	rwdt_init_timeout(wdev);
 
@@ -82,7 +94,7 @@ static int rwdt_stop(struct watchdog_device *wdev)
 	struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
 
 	rwdt_write(priv, priv->cks, RWTCSRA);
-	clk_disable_unprepare(priv->clk);
+	pm_runtime_put(wdev->parent);
 
 	return 0;
 }
@@ -92,7 +104,7 @@ static unsigned int rwdt_get_timeleft(struct watchdog_device *wdev)
 	struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
 	u16 val = readw_relaxed(priv->base + RWTCNT);
 
-	return DIV_ROUND_CLOSEST(65536 - val, priv->clks_per_sec);
+	return DIV_BY_CLKS_PER_SEC(priv, 65536 - val);
 }
 
 static const struct watchdog_info rwdt_ident = {
@@ -112,8 +124,8 @@ static int rwdt_probe(struct platform_device *pdev)
 {
 	struct rwdt_priv *priv;
 	struct resource *res;
-	unsigned long rate;
-	unsigned int clks_per_sec;
+	struct clk *clk;
+	unsigned long clks_per_sec;
 	int ret, i;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
@@ -125,36 +137,40 @@ static int rwdt_probe(struct platform_device *pdev)
 	if (IS_ERR(priv->base))
 		return PTR_ERR(priv->base);
 
-	priv->clk = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(priv->clk))
-		return PTR_ERR(priv->clk);
+	clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk))
+		return PTR_ERR(clk);
+
+	pm_runtime_enable(&pdev->dev);
 
-	rate = clk_get_rate(priv->clk);
-	if (!rate)
-		return -ENOENT;
+	pm_runtime_get_sync(&pdev->dev);
+	priv->clk_rate = clk_get_rate(clk);
+	pm_runtime_put(&pdev->dev);
+
+	if (!priv->clk_rate) {
+		ret = -ENOENT;
+		goto out_pm_disable;
+	}
 
 	for (i = ARRAY_SIZE(clk_divs) - 1; i >= 0; i--) {
-		clks_per_sec = DIV_ROUND_UP(rate, clk_divs[i]);
-		if (clks_per_sec) {
-			priv->clks_per_sec = clks_per_sec;
+		clks_per_sec = priv->clk_rate / clk_divs[i];
+		if (clks_per_sec && clks_per_sec < 65536) {
 			priv->cks = i;
 			break;
 		}
 	}
 
-	if (!clks_per_sec) {
+	if (i < 0) {
 		dev_err(&pdev->dev, "Can't find suitable clock divider\n");
-		return -ERANGE;
+		ret = -ERANGE;
+		goto out_pm_disable;
 	}
 
-	pm_runtime_enable(&pdev->dev);
-	pm_runtime_get_sync(&pdev->dev);
-
 	priv->wdev.info = &rwdt_ident,
 	priv->wdev.ops = &rwdt_ops,
 	priv->wdev.parent = &pdev->dev;
 	priv->wdev.min_timeout = 1;
-	priv->wdev.max_timeout = 65536 / clks_per_sec;
+	priv->wdev.max_timeout = DIV_BY_CLKS_PER_SEC(priv, 65536);
 	priv->wdev.timeout = min(priv->wdev.max_timeout, RWDT_DEFAULT_TIMEOUT);
 
 	platform_set_drvdata(pdev, priv);
@@ -167,13 +183,14 @@ static int rwdt_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev, "Specified timeout value invalid, using default\n");
 
 	ret = watchdog_register_device(&priv->wdev);
-	if (ret < 0) {
-		pm_runtime_put(&pdev->dev);
-		pm_runtime_disable(&pdev->dev);
-		return ret;
-	}
+	if (ret < 0)
+		goto out_pm_disable;
 
 	return 0;
+
+ out_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
 }
 
 static int rwdt_remove(struct platform_device *pdev)
@@ -181,7 +198,6 @@ static int rwdt_remove(struct platform_device *pdev)
 	struct rwdt_priv *priv = platform_get_drvdata(pdev);
 
 	watchdog_unregister_device(&priv->wdev);
-	pm_runtime_put(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	return 0;
diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c
index 05524baf7dcc..98967f0a7d10 100644
--- a/drivers/watchdog/rt2880_wdt.c
+++ b/drivers/watchdog/rt2880_wdt.c
@@ -119,7 +119,7 @@ static int rt288x_wdt_bootcause(void)
 	return 0;
 }
 
-static struct watchdog_info rt288x_wdt_info = {
+static const struct watchdog_info rt288x_wdt_info = {
 	.identity = "Ralink Watchdog",
 	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
 };
@@ -152,7 +152,7 @@ static int rt288x_wdt_probe(struct platform_device *pdev)
 	if (IS_ERR(rt288x_wdt_clk))
 		return PTR_ERR(rt288x_wdt_clk);
 
-	rt288x_wdt_reset = devm_reset_control_get(&pdev->dev, NULL);
+	rt288x_wdt_reset = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (!IS_ERR(rt288x_wdt_reset))
 		reset_control_deassert(rt288x_wdt_reset);
 
diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c
index 2eef58a0cf05..8d589939bc84 100644
--- a/drivers/watchdog/sbc60xxwdt.c
+++ b/drivers/watchdog/sbc60xxwdt.c
@@ -113,7 +113,7 @@ MODULE_PARM_DESC(nowayout,
 				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
 static void wdt_timer_ping(unsigned long);
-static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
+static DEFINE_TIMER(timer, wdt_timer_ping);
 static unsigned long next_heartbeat;
 static unsigned long wdt_is_open;
 static char wdt_expect_close;
diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
index b34d3d5ba632..8e4e2fc13f87 100644
--- a/drivers/watchdog/sc1200wdt.c
+++ b/drivers/watchdog/sc1200wdt.c
@@ -342,7 +342,7 @@ static int __init sc1200wdt_probe(void)
 
 #if defined CONFIG_PNP
 
-static struct pnp_device_id scl200wdt_pnp_devices[] = {
+static const struct pnp_device_id scl200wdt_pnp_devices[] = {
 	/* National Semiconductor PC87307/PC97307 watchdog component */
 	{.id = "NSC0800", .driver_data = 0},
 	{.id = ""},
diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c
index 1cfd3f6a13d5..3e9bbaa37bf4 100644
--- a/drivers/watchdog/sc520_wdt.c
+++ b/drivers/watchdog/sc520_wdt.c
@@ -124,7 +124,7 @@ MODULE_PARM_DESC(nowayout,
 static __u16 __iomem *wdtmrctl;
 
 static void wdt_timer_ping(unsigned long);
-static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
+static DEFINE_TIMER(timer, wdt_timer_ping);
 static unsigned long next_heartbeat;
 static unsigned long wdt_is_open;
 static char wdt_expect_close;
diff --git a/drivers/watchdog/sp5100_tco.h b/drivers/watchdog/sp5100_tco.h
index 2b28c00da0df..1af4dee71337 100644
--- a/drivers/watchdog/sp5100_tco.h
+++ b/drivers/watchdog/sp5100_tco.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	sp5100_tco:	TCO timer driver for sp5100 chipsets.
  *
diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index e7a715e82021..03805bc5d67a 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -281,7 +281,7 @@ static int __maybe_unused sp805_wdt_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(sp805_wdt_dev_pm_ops, sp805_wdt_suspend,
 		sp805_wdt_resume);
 
-static struct amba_id sp805_wdt_ids[] = {
+static const struct amba_id sp805_wdt_ids[] = {
 	{
 		.id	= 0x00141805,
 		.mask	= 0x00ffffff,
diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c
index 6c501b7dba29..be64a8699de3 100644
--- a/drivers/watchdog/stm32_iwdg.c
+++ b/drivers/watchdog/stm32_iwdg.c
@@ -140,7 +140,7 @@ static const struct watchdog_info stm32_iwdg_info = {
 	.identity	= "STM32 Independent Watchdog",
 };
 
-static struct watchdog_ops stm32_iwdg_ops = {
+static const struct watchdog_ops stm32_iwdg_ops = {
 	.owner		= THIS_MODULE,
 	.start		= stm32_iwdg_start,
 	.ping		= stm32_iwdg_ping,
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 17c25daebcce..811e43c39ec4 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -112,7 +112,7 @@ static const struct watchdog_info ts72xx_wdt_ident = {
 	.identity		= "TS-72XX WDT",
 };
 
-static struct watchdog_ops ts72xx_wdt_ops = {
+static const struct watchdog_ops ts72xx_wdt_ops = {
 	.owner		= THIS_MODULE,
 	.start		= ts72xx_wdt_start,
 	.stop		= ts72xx_wdt_stop,
diff --git a/drivers/watchdog/via_wdt.c b/drivers/watchdog/via_wdt.c
index 5f9cbc37520d..ad3c3be13b40 100644
--- a/drivers/watchdog/via_wdt.c
+++ b/drivers/watchdog/via_wdt.c
@@ -68,7 +68,7 @@ static struct resource wdt_res;
 static void __iomem *wdt_mem;
 static unsigned int mmio;
 static void wdt_timer_tick(unsigned long data);
-static DEFINE_TIMER(timer, wdt_timer_tick, 0, 0);
+static DEFINE_TIMER(timer, wdt_timer_tick);
 					/* The timer that pings the watchdog */
 static unsigned long next_heartbeat;	/* the next_heartbeat for the timer */
 
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index d9ba0496713c..7817836bff55 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -429,7 +429,7 @@ static int __init wdt_init(void)
 {
 	int ret;
 	int chip;
-	const char * const chip_name[] = {
+	static const char * const chip_name[] = {
 		"W83627HF",
 		"W83627S",
 		"W83697HF",
diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c
index f0483c75ed32..ba6b680af100 100644
--- a/drivers/watchdog/w83877f_wdt.c
+++ b/drivers/watchdog/w83877f_wdt.c
@@ -98,7 +98,7 @@ MODULE_PARM_DESC(nowayout,
 				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
 
 static void wdt_timer_ping(unsigned long);
-static DEFINE_TIMER(timer, wdt_timer_ping, 0, 0);
+static DEFINE_TIMER(timer, wdt_timer_ping);
 static unsigned long next_heartbeat;
 static unsigned long wdt_is_open;
 static char wdt_expect_close;
diff --git a/drivers/watchdog/watchdog_pretimeout.h b/drivers/watchdog/watchdog_pretimeout.h
index a5a32b39c56d..a3f1abc68839 100644
--- a/drivers/watchdog/watchdog_pretimeout.h
+++ b/drivers/watchdog/watchdog_pretimeout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WATCHDOG_PRETIMEOUT_H
 #define __WATCHDOG_PRETIMEOUT_H
 
diff --git a/drivers/watchdog/ziirave_wdt.c b/drivers/watchdog/ziirave_wdt.c
index b4e0cea5a64e..d3594aa3a374 100644
--- a/drivers/watchdog/ziirave_wdt.c
+++ b/drivers/watchdog/ziirave_wdt.c
@@ -737,7 +737,7 @@ static int ziirave_wdt_remove(struct i2c_client *client)
 	return 0;
 }
 
-static struct i2c_device_id ziirave_wdt_id[] = {
+static const struct i2c_device_id ziirave_wdt_id[] = {
 	{ "rave-wdt", 0 },
 	{ }
 };
diff --git a/drivers/watchdog/zx2967_wdt.c b/drivers/watchdog/zx2967_wdt.c
index 69ec5855584b..9261f7c77f6d 100644
--- a/drivers/watchdog/zx2967_wdt.c
+++ b/drivers/watchdog/zx2967_wdt.c
@@ -229,7 +229,7 @@ static int zx2967_wdt_probe(struct platform_device *pdev)
 	}
 	clk_set_rate(wdt->clock, ZX2967_WDT_CLK_FREQ);
 
-	rstc = devm_reset_control_get(dev, NULL);
+	rstc = devm_reset_control_get_exclusive(dev, NULL);
 	if (IS_ERR(rstc)) {
 		dev_err(dev, "failed to get rstc");
 		ret = PTR_ERR(rstc);
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index caaa15dc37bc..d3930ecaf11d 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_HOTPLUG_CPU)		+= cpu_hotplug.o
 obj-$(CONFIG_X86)			+= fallback.o
 obj-y	+= grant-table.o features.o balloon.o manage.o preempt.o time.o
diff --git a/drivers/xen/biomerge.c b/drivers/xen/biomerge.c
index 1bdd02a6d6ac..30d7f52eb7ca 100644
--- a/drivers/xen/biomerge.c
+++ b/drivers/xen/biomerge.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bio.h>
 #include <linux/io.h>
 #include <linux/export.h>
diff --git a/drivers/xen/cpu_hotplug.c b/drivers/xen/cpu_hotplug.c
index 0003912a8111..d4265c8ebb22 100644
--- a/drivers/xen/cpu_hotplug.c
+++ b/drivers/xen/cpu_hotplug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) "xen:" KBUILD_MODNAME ": " fmt
 
 #include <linux/notifier.h>
diff --git a/drivers/xen/events/events_2l.c b/drivers/xen/events/events_2l.c
index bdff01095f54..8edef51c92e5 100644
--- a/drivers/xen/events/events_2l.c
+++ b/drivers/xen/events/events_2l.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xen event channels (2-level ABI)
  *
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index 1bf55a32a4b3..3fa40c723e8e 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -294,7 +294,7 @@ static long gntalloc_ioctl_alloc(struct gntalloc_file_private_data *priv,
 		goto out;
 	}
 
-	gref_ids = kcalloc(op.count, sizeof(gref_ids[0]), GFP_TEMPORARY);
+	gref_ids = kcalloc(op.count, sizeof(gref_ids[0]), GFP_KERNEL);
 	if (!gref_ids) {
 		rc = -ENOMEM;
 		goto out;
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index 82360594fa8e..57efbd3b053b 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -1024,6 +1024,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
 	mutex_unlock(&priv->lock);
 
 	if (use_ptemod) {
+		map->pages_vm_start = vma->vm_start;
 		err = apply_to_page_range(vma->vm_mm, vma->vm_start,
 					  vma->vm_end - vma->vm_start,
 					  find_grant_ptes, map);
@@ -1061,7 +1062,6 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma)
 					    set_grant_ptes_as_special, NULL);
 		}
 #endif
-		map->pages_vm_start = vma->vm_start;
 	}
 
 	return 0;
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 2c6a9114d332..a8721d718186 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -305,7 +305,7 @@ struct deferred_entry {
 };
 static LIST_HEAD(deferred_list);
 static void gnttab_handle_deferred(unsigned long);
-static DEFINE_TIMER(deferred_timer, gnttab_handle_deferred, 0, 0);
+static DEFINE_TIMER(deferred_timer, gnttab_handle_deferred);
 
 static void gnttab_handle_deferred(unsigned long unused)
 {
diff --git a/drivers/xen/time.c b/drivers/xen/time.c
index ac5f23fcafc2..a63fedbdcbe9 100644
--- a/drivers/xen/time.c
+++ b/drivers/xen/time.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Xen stolen ticks accounting.
  */
diff --git a/drivers/xen/xen-balloon.c b/drivers/xen/xen-balloon.c
index e89136ab851e..b437fccd4e62 100644
--- a/drivers/xen/xen-balloon.c
+++ b/drivers/xen/xen-balloon.c
@@ -57,7 +57,7 @@ static int register_balloon(struct device *dev);
 static void watch_target(struct xenbus_watch *watch,
 			 const char *path, const char *token)
 {
-	unsigned long long new_target;
+	unsigned long long new_target, static_max;
 	int err;
 	static bool watch_fired;
 	static long target_diff;
@@ -72,13 +72,20 @@ static void watch_target(struct xenbus_watch *watch,
 	 * pages. PAGE_SHIFT converts bytes to pages, hence PAGE_SHIFT - 10.
 	 */
 	new_target >>= PAGE_SHIFT - 10;
-	if (watch_fired) {
-		balloon_set_new_target(new_target - target_diff);
-		return;
+
+	if (!watch_fired) {
+		watch_fired = true;
+		err = xenbus_scanf(XBT_NIL, "memory", "static-max", "%llu",
+				   &static_max);
+		if (err != 1)
+			static_max = new_target;
+		else
+			static_max >>= PAGE_SHIFT - 10;
+		target_diff = xen_pv_domain() ? 0
+				: static_max - balloon_stats.target_pages;
 	}
 
-	watch_fired = true;
-	target_diff = new_target - balloon_stats.target_pages;
+	balloon_set_new_target(new_target - target_diff);
 }
 static struct xenbus_watch target_watch = {
 	.node = "memory/target",
diff --git a/drivers/xen/xen-pciback/Makefile b/drivers/xen/xen-pciback/Makefile
index ffe0ad3438bd..e8d981d43235 100644
--- a/drivers/xen/xen-pciback/Makefile
+++ b/drivers/xen/xen-pciback/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_XEN_PCIDEV_BACKEND) += xen-pciback.o
 
 xen-pciback-y := pci_stub.o pciback_ops.o xenbus.o
diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c
index 9e9286d0872e..60111719b01f 100644
--- a/drivers/xen/xen-pciback/conf_space.c
+++ b/drivers/xen/xen-pciback/conf_space.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend - Functions for creating a virtual configuration space for
  *               exported PCI Devices.
diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h
index 62461a8ba1d6..22db630717ea 100644
--- a/drivers/xen/xen-pciback/conf_space.h
+++ b/drivers/xen/xen-pciback/conf_space.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PCI Backend - Common data structures for overriding the configuration space
  *
diff --git a/drivers/xen/xen-pciback/conf_space_capability.c b/drivers/xen/xen-pciback/conf_space_capability.c
index 7f83e9083e9d..73427d8e0116 100644
--- a/drivers/xen/xen-pciback/conf_space_capability.c
+++ b/drivers/xen/xen-pciback/conf_space_capability.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend - Handles the virtual fields found on the capability lists
  *               in the configuration space.
diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c
index 5fbfd9cfb6d6..10ae24b5a76e 100644
--- a/drivers/xen/xen-pciback/conf_space_header.c
+++ b/drivers/xen/xen-pciback/conf_space_header.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend - Handles the virtual fields in the configuration space headers.
  *
@@ -169,6 +170,9 @@ static int rom_write(struct pci_dev *dev, int offset, u32 value, void *data)
 static int bar_write(struct pci_dev *dev, int offset, u32 value, void *data)
 {
 	struct pci_bar_info *bar = data;
+	unsigned int pos = (offset - PCI_BASE_ADDRESS_0) / 4;
+	const struct resource *res = dev->resource;
+	u32 mask;
 
 	if (unlikely(!bar)) {
 		pr_warn(DRV_NAME ": driver data not found for %s\n",
@@ -179,7 +183,13 @@ static int bar_write(struct pci_dev *dev, int offset, u32 value, void *data)
 	/* A write to obtain the length must happen as a 32-bit write.
 	 * This does not (yet) support writing individual bytes
 	 */
-	if (value == ~0)
+	if (res[pos].flags & IORESOURCE_IO)
+		mask = ~PCI_BASE_ADDRESS_IO_MASK;
+	else if (pos && (res[pos - 1].flags & IORESOURCE_MEM_64))
+		mask = 0;
+	else
+		mask = ~PCI_BASE_ADDRESS_MEM_MASK;
+	if ((value | mask) == ~0U)
 		bar->which = 1;
 	else {
 		u32 tmpval;
diff --git a/drivers/xen/xen-pciback/conf_space_quirks.c b/drivers/xen/xen-pciback/conf_space_quirks.c
index 7476791cab40..89d9744ece61 100644
--- a/drivers/xen/xen-pciback/conf_space_quirks.c
+++ b/drivers/xen/xen-pciback/conf_space_quirks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend - Handle special overlays for broken devices.
  *
diff --git a/drivers/xen/xen-pciback/conf_space_quirks.h b/drivers/xen/xen-pciback/conf_space_quirks.h
index cfcc517e4570..d873abe35bf6 100644
--- a/drivers/xen/xen-pciback/conf_space_quirks.h
+++ b/drivers/xen/xen-pciback/conf_space_quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PCI Backend - Data structures for special overlays for broken devices.
  *
diff --git a/drivers/xen/xen-pciback/passthrough.c b/drivers/xen/xen-pciback/passthrough.c
index f16a30e2a110..66e9b814cc86 100644
--- a/drivers/xen/xen-pciback/passthrough.c
+++ b/drivers/xen/xen-pciback/passthrough.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend - Provides restricted access to the real PCI bus topology
  *               to the frontend
diff --git a/drivers/xen/xen-pciback/pciback.h b/drivers/xen/xen-pciback/pciback.h
index 7af369b6aaa2..263c059bff90 100644
--- a/drivers/xen/xen-pciback/pciback.h
+++ b/drivers/xen/xen-pciback/pciback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PCI Backend Common Data Structures & Function Declarations
  *
diff --git a/drivers/xen/xen-pciback/pciback_ops.c b/drivers/xen/xen-pciback/pciback_ops.c
index f8c77751f330..ee2c891b55c6 100644
--- a/drivers/xen/xen-pciback/pciback_ops.c
+++ b/drivers/xen/xen-pciback/pciback_ops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend Operations - respond to PCI requests from Frontend
  *
diff --git a/drivers/xen/xen-pciback/vpci.c b/drivers/xen/xen-pciback/vpci.c
index c99f8bb1c56c..f6ba18191c0f 100644
--- a/drivers/xen/xen-pciback/vpci.c
+++ b/drivers/xen/xen-pciback/vpci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend - Provides a Virtual PCI bus (with real devices)
  *               to the frontend
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index 3814b44bf1f7..581c4e1a8b82 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PCI Backend Xenbus Setup - handles setup with frontend and xend
  *
diff --git a/drivers/xen/xen-selfballoon.c b/drivers/xen/xen-selfballoon.c
index a67e955cacd1..55988b8418ee 100644
--- a/drivers/xen/xen-selfballoon.c
+++ b/drivers/xen/xen-selfballoon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /******************************************************************************
  * Xen selfballoon driver (and optional frontswap self-shrinking driver)
  *
diff --git a/drivers/xen/xenbus/Makefile b/drivers/xen/xenbus/Makefile
index 31e2e9050c7a..0c7532110815 100644
--- a/drivers/xen/xenbus/Makefile
+++ b/drivers/xen/xenbus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y	+= xenbus.o
 obj-y	+= xenbus_dev_frontend.o
 
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index 82a8866758ee..a1c17000129b 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -519,64 +519,6 @@ static int __xenbus_map_ring(struct xenbus_device *dev,
 	return err;
 }
 
-static int xenbus_map_ring_valloc_pv(struct xenbus_device *dev,
-				     grant_ref_t *gnt_refs,
-				     unsigned int nr_grefs,
-				     void **vaddr)
-{
-	struct xenbus_map_node *node;
-	struct vm_struct *area;
-	pte_t *ptes[XENBUS_MAX_RING_GRANTS];
-	phys_addr_t phys_addrs[XENBUS_MAX_RING_GRANTS];
-	int err = GNTST_okay;
-	int i;
-	bool leaked;
-
-	*vaddr = NULL;
-
-	if (nr_grefs > XENBUS_MAX_RING_GRANTS)
-		return -EINVAL;
-
-	node = kzalloc(sizeof(*node), GFP_KERNEL);
-	if (!node)
-		return -ENOMEM;
-
-	area = alloc_vm_area(XEN_PAGE_SIZE * nr_grefs, ptes);
-	if (!area) {
-		kfree(node);
-		return -ENOMEM;
-	}
-
-	for (i = 0; i < nr_grefs; i++)
-		phys_addrs[i] = arbitrary_virt_to_machine(ptes[i]).maddr;
-
-	err = __xenbus_map_ring(dev, gnt_refs, nr_grefs, node->handles,
-				phys_addrs,
-				GNTMAP_host_map | GNTMAP_contains_pte,
-				&leaked);
-	if (err)
-		goto failed;
-
-	node->nr_handles = nr_grefs;
-	node->pv.area = area;
-
-	spin_lock(&xenbus_valloc_lock);
-	list_add(&node->next, &xenbus_valloc_pages);
-	spin_unlock(&xenbus_valloc_lock);
-
-	*vaddr = area->addr;
-	return 0;
-
-failed:
-	if (!leaked)
-		free_vm_area(area);
-	else
-		pr_alert("leaking VM area %p size %u page(s)", area, nr_grefs);
-
-	kfree(node);
-	return err;
-}
-
 struct map_ring_valloc_hvm
 {
 	unsigned int idx;
@@ -725,6 +667,65 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
 }
 EXPORT_SYMBOL_GPL(xenbus_unmap_ring_vfree);
 
+#ifdef CONFIG_XEN_PV
+static int xenbus_map_ring_valloc_pv(struct xenbus_device *dev,
+				     grant_ref_t *gnt_refs,
+				     unsigned int nr_grefs,
+				     void **vaddr)
+{
+	struct xenbus_map_node *node;
+	struct vm_struct *area;
+	pte_t *ptes[XENBUS_MAX_RING_GRANTS];
+	phys_addr_t phys_addrs[XENBUS_MAX_RING_GRANTS];
+	int err = GNTST_okay;
+	int i;
+	bool leaked;
+
+	*vaddr = NULL;
+
+	if (nr_grefs > XENBUS_MAX_RING_GRANTS)
+		return -EINVAL;
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
+
+	area = alloc_vm_area(XEN_PAGE_SIZE * nr_grefs, ptes);
+	if (!area) {
+		kfree(node);
+		return -ENOMEM;
+	}
+
+	for (i = 0; i < nr_grefs; i++)
+		phys_addrs[i] = arbitrary_virt_to_machine(ptes[i]).maddr;
+
+	err = __xenbus_map_ring(dev, gnt_refs, nr_grefs, node->handles,
+				phys_addrs,
+				GNTMAP_host_map | GNTMAP_contains_pte,
+				&leaked);
+	if (err)
+		goto failed;
+
+	node->nr_handles = nr_grefs;
+	node->pv.area = area;
+
+	spin_lock(&xenbus_valloc_lock);
+	list_add(&node->next, &xenbus_valloc_pages);
+	spin_unlock(&xenbus_valloc_lock);
+
+	*vaddr = area->addr;
+	return 0;
+
+failed:
+	if (!leaked)
+		free_vm_area(area);
+	else
+		pr_alert("leaking VM area %p size %u page(s)", area, nr_grefs);
+
+	kfree(node);
+	return err;
+}
+
 static int xenbus_unmap_ring_vfree_pv(struct xenbus_device *dev, void *vaddr)
 {
 	struct xenbus_map_node *node;
@@ -788,6 +789,12 @@ static int xenbus_unmap_ring_vfree_pv(struct xenbus_device *dev, void *vaddr)
 	return err;
 }
 
+static const struct xenbus_ring_ops ring_ops_pv = {
+	.map = xenbus_map_ring_valloc_pv,
+	.unmap = xenbus_unmap_ring_vfree_pv,
+};
+#endif
+
 struct unmap_ring_vfree_hvm
 {
 	unsigned int idx;
@@ -916,11 +923,6 @@ enum xenbus_state xenbus_read_driver_state(const char *path)
 }
 EXPORT_SYMBOL_GPL(xenbus_read_driver_state);
 
-static const struct xenbus_ring_ops ring_ops_pv = {
-	.map = xenbus_map_ring_valloc_pv,
-	.unmap = xenbus_unmap_ring_vfree_pv,
-};
-
 static const struct xenbus_ring_ops ring_ops_hvm = {
 	.map = xenbus_map_ring_valloc_hvm,
 	.unmap = xenbus_unmap_ring_vfree_hvm,
@@ -928,8 +930,10 @@ static const struct xenbus_ring_ops ring_ops_hvm = {
 
 void __init xenbus_ring_ops_init(void)
 {
+#ifdef CONFIG_XEN_PV
 	if (!xen_feature(XENFEAT_auto_translated_physmap))
 		ring_ops = &ring_ops_pv;
 	else
+#endif
 		ring_ops = &ring_ops_hvm;
 }
diff --git a/drivers/xen/xenbus/xenbus_dev_backend.c b/drivers/xen/xenbus/xenbus_dev_backend.c
index 1126701e212e..edba5fecde4d 100644
--- a/drivers/xen/xenbus/xenbus_dev_backend.c
+++ b/drivers/xen/xenbus/xenbus_dev_backend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/slab.h>
diff --git a/drivers/xen/xenfs/xenfs.h b/drivers/xen/xenfs/xenfs.h
index 2c5934ea9b1e..cfe4874b83a7 100644
--- a/drivers/xen/xenfs/xenfs.h
+++ b/drivers/xen/xenfs/xenfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XENFS_XENBUS_H
 #define _XENFS_XENBUS_H
 
diff --git a/drivers/xen/xenfs/xenstored.c b/drivers/xen/xenfs/xenstored.c
index 82fd2a396d96..f59235f9f8a2 100644
--- a/drivers/xen/xenfs/xenstored.c
+++ b/drivers/xen/xenfs/xenstored.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/mm.h>
diff --git a/drivers/xen/xenfs/xensyms.c b/drivers/xen/xenfs/xensyms.c
index c6e2b4a542ea..c6c73a33c44d 100644
--- a/drivers/xen/xenfs/xensyms.c
+++ b/drivers/xen/xenfs/xensyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/seq_file.h>
 #include <linux/fs.h>
diff --git a/drivers/zorro/Makefile b/drivers/zorro/Makefile
index 7dc5332ff984..b360ac4ea846 100644
--- a/drivers/zorro/Makefile
+++ b/drivers/zorro/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Zorro bus specific drivers.
 #
diff --git a/drivers/zorro/gen-devlist.c b/drivers/zorro/gen-devlist.c
index 16fe206f9998..e325c5ce995b 100644
--- a/drivers/zorro/gen-devlist.c
+++ b/drivers/zorro/gen-devlist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Generate devlist.h from the Zorro ID file.
  *
diff --git a/drivers/zorro/names.c b/drivers/zorro/names.c
index 83eedddbb794..fa3c83dbe843 100644
--- a/drivers/zorro/names.c
+++ b/drivers/zorro/names.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Zorro Device Name Tables
  *
diff --git a/drivers/zorro/proc.c b/drivers/zorro/proc.c
index 05397305fccd..df05a26ab8d8 100644
--- a/drivers/zorro/proc.c
+++ b/drivers/zorro/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Procfs interface for the Zorro bus.
  *
diff --git a/drivers/zorro/zorro.h b/drivers/zorro/zorro.h
index 4f805c01cfbc..ac0bab3412d9 100644
--- a/drivers/zorro/zorro.h
+++ b/drivers/zorro/zorro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifdef CONFIG_ZORRO_NAMES
 extern void zorro_name_device(struct zorro_dev *z);
diff --git a/firmware/3com/typhoon.bin.ihex b/firmware/3com/typhoon.bin.ihex
deleted file mode 100644
index d7a83bea0c3b..000000000000
--- a/firmware/3com/typhoon.bin.ihex
+++ /dev/null
@@ -1,2819 +0,0 @@
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-/* ver 03.001.008 */
-/*
- * Copyright 1999-2004 3Com Corporation.  All Rights Reserved.
- *
- * Redistribution and use in source and binary forms of the 3c990img.h
- * microcode software are permitted provided that the following conditions
- * are met:
- * 1. Redistribution of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistribution in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of 3Com may not be used to endorse or promote products
- *    derived from this software without specific prior written permission
- *
- * THIS SOFTWARE IS PROVIDED BY 3COM ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * USER ACKNOWLEDGES AND AGREES THAT PURCHASE OR USE OF THE 3c990img.h
- * MICROCODE SOFTWARE WILL NOT CREATE OR GIVE GROUNDS FOR A LICENSE BY
- * IMPLICATION, ESTOPPEL, OR OTHERWISE IN ANY INTELLECTUAL PROPERTY RIGHTS
- * (PATENT, COPYRIGHT, TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT)
- * EMBODIED IN ANY OTHER 3COM HARDWARE OR SOFTWARE EITHER SOLELY OR IN
- * COMBINATION WITH THE 3c990img.h MICROCODE SOFTWARE
- */
diff --git a/firmware/Makefile b/firmware/Makefile
index fa3e81c2a97b..168094a3fae7 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # kbuild file for firmware/
 #
@@ -9,144 +10,6 @@ fwabs := $(addprefix $(srctree)/,$(filter-out /%,$(fwdir)))$(filter /%,$(fwdir))
 
 fw-external-y := $(subst $(quote),,$(CONFIG_EXTRA_FIRMWARE))
 
-# There are three cases to care about:
-# 1. Building kernel with CONFIG_FIRMWARE_IN_KERNEL=y -- $(fw-shipped-y) should
-#    include the firmware files to include, according to .config
-# 2. 'make modules_install', which will install firmware for modules, and 
-#    _also_ for the in-kernel drivers when CONFIG_FIRMWARE_IN_KERNEL=n
-# 3. 'make firmware_install', which installs all firmware, unconditionally.
-
-# For the former two cases we want $(fw-shipped-y) and $(fw-shipped-m) to be
-# accurate. In the latter case it doesn't matter -- it'll use $(fw-shipped-all).
-# But be aware that the config file might not be included at all.
-
-ifdef CONFIG_ACENIC_OMIT_TIGON_I
-acenic-objs := acenic/tg2.bin
-fw-shipped- += acenic/tg1.bin
-else
-acenic-objs := acenic/tg1.bin acenic/tg2.bin
-endif
-fw-shipped-$(CONFIG_ACENIC) += $(acenic-objs)
-fw-shipped-$(CONFIG_ADAPTEC_STARFIRE) += adaptec/starfire_rx.bin \
-					 adaptec/starfire_tx.bin
-fw-shipped-$(CONFIG_ATARI_DSP56K) += dsp56k/bootstrap.bin
-fw-shipped-$(CONFIG_ATM_AMBASSADOR) += atmsar11.fw
-fw-shipped-$(CONFIG_BNX2X) += bnx2x/bnx2x-e1-6.2.9.0.fw \
-			      bnx2x/bnx2x-e1h-6.2.9.0.fw \
-			      bnx2x/bnx2x-e2-6.2.9.0.fw
-fw-shipped-$(CONFIG_BNX2) += bnx2/bnx2-mips-09-6.2.1a.fw \
-			     bnx2/bnx2-rv2p-09-6.0.17.fw \
-			     bnx2/bnx2-rv2p-09ax-6.0.17.fw \
-			     bnx2/bnx2-mips-06-6.2.1.fw \
-			     bnx2/bnx2-rv2p-06-6.0.15.fw
-fw-shipped-$(CONFIG_CASSINI) += sun/cassini.bin
-fw-shipped-$(CONFIG_CHELSIO_T3) += cxgb3/t3b_psram-1.1.0.bin \
-				   cxgb3/t3c_psram-1.1.0.bin \
-				   cxgb3/ael2005_opt_edc.bin \
-				   cxgb3/ael2005_twx_edc.bin \
-				   cxgb3/ael2020_twx_edc.bin
-fw-shipped-$(CONFIG_DRM_MGA) += matrox/g200_warp.fw matrox/g400_warp.fw
-fw-shipped-$(CONFIG_DRM_R128) += r128/r128_cce.bin
-fw-shipped-$(CONFIG_DRM_RADEON) += radeon/R100_cp.bin radeon/R200_cp.bin \
-				   radeon/R300_cp.bin radeon/R420_cp.bin \
-				   radeon/RS690_cp.bin radeon/RS600_cp.bin \
-				   radeon/R520_cp.bin \
-				   radeon/R600_pfp.bin radeon/R600_me.bin \
-				   radeon/RV610_pfp.bin radeon/RV610_me.bin \
-				   radeon/RV630_pfp.bin radeon/RV630_me.bin \
-				   radeon/RV620_pfp.bin radeon/RV620_me.bin \
-				   radeon/RV635_pfp.bin radeon/RV635_me.bin \
-				   radeon/RV670_pfp.bin radeon/RV670_me.bin \
-				   radeon/RS780_pfp.bin radeon/RS780_me.bin \
-				   radeon/RV770_pfp.bin radeon/RV770_me.bin \
-				   radeon/RV730_pfp.bin radeon/RV730_me.bin \
-				   radeon/RV710_pfp.bin radeon/RV710_me.bin
-fw-shipped-$(CONFIG_DVB_AV7110) += av7110/bootcode.bin
-fw-shipped-$(CONFIG_DVB_TTUSB_BUDGET) += ttusb-budget/dspbootcode.bin
-fw-shipped-$(CONFIG_E100) += e100/d101m_ucode.bin e100/d101s_ucode.bin \
-			     e100/d102e_ucode.bin
-fw-shipped-$(CONFIG_MYRI_SBUS) += myricom/lanai.bin
-fw-shipped-$(CONFIG_PCMCIA_PCNET) += cis/LA-PCM.cis cis/PCMLM28.cis \
-				     cis/DP83903.cis cis/NE2K.cis \
-				     cis/tamarack.cis cis/PE-200.cis \
-				     cis/PE520.cis
-fw-shipped-$(CONFIG_PCMCIA_3C589) += cis/3CXEM556.cis
-fw-shipped-$(CONFIG_PCMCIA_3C574) += cis/3CCFEM556.cis
-fw-shipped-$(CONFIG_SERIAL_8250_CS) += cis/MT5634ZLX.cis cis/RS-COM-2P.cis \
-				       cis/COMpad2.cis cis/COMpad4.cis \
-				       cis/SW_555_SER.cis cis/SW_7xx_SER.cis \
-				       cis/SW_8xx_SER.cis
-fw-shipped-$(CONFIG_PCMCIA_SMC91C92) += ositech/Xilinx7OD.bin
-fw-shipped-$(CONFIG_SCSI_ADVANSYS) += advansys/mcode.bin advansys/38C1600.bin \
-				      advansys/3550.bin advansys/38C0800.bin
-fw-shipped-$(CONFIG_SCSI_QLOGIC_1280) += qlogic/1040.bin qlogic/1280.bin \
-					 qlogic/12160.bin
-fw-shipped-$(CONFIG_SCSI_QLOGICPTI) += qlogic/isp1000.bin
-fw-shipped-$(CONFIG_INFINIBAND_QIB) += qlogic/sd7220.fw
-fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp
-fw-shipped-$(CONFIG_SND_MAESTRO3) += ess/maestro3_assp_kernel.fw \
-				     ess/maestro3_assp_minisrc.fw
-fw-shipped-$(CONFIG_SND_SB16_CSP) += sb16/mulaw_main.csp sb16/alaw_main.csp \
-				     sb16/ima_adpcm_init.csp \
-				     sb16/ima_adpcm_playback.csp \
-				     sb16/ima_adpcm_capture.csp
-fw-shipped-$(CONFIG_SND_YMFPCI) += yamaha/ds1_ctrl.fw yamaha/ds1_dsp.fw \
-				   yamaha/ds1e_ctrl.fw
-fw-shipped-$(CONFIG_SND_WAVEFRONT) += yamaha/yss225_registers.bin
-fw-shipped-$(CONFIG_TEHUTI) += tehuti/bdx.bin
-fw-shipped-$(CONFIG_TIGON3) += tigon/tg3.bin tigon/tg3_tso.bin \
-			       tigon/tg3_tso5.bin
-fw-shipped-$(CONFIG_TYPHOON) += 3com/typhoon.bin
-fw-shipped-$(CONFIG_USB_EMI26) += emi26/loader.fw emi26/firmware.fw \
-				  emi26/bitstream.fw
-fw-shipped-$(CONFIG_USB_EMI62) += emi62/loader.fw emi62/bitstream.fw \
-				  emi62/spdif.fw emi62/midi.fw
-fw-shipped-$(CONFIG_USB_KAWETH) += kaweth/new_code.bin kaweth/trigger_code.bin \
-				   kaweth/new_code_fix.bin \
-				   kaweth/trigger_code_fix.bin
-ifdef CONFIG_FIRMWARE_IN_KERNEL
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_MPR) += keyspan/mpr.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA18X) += keyspan/usa18x.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19) += keyspan/usa19.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19QI) += keyspan/usa19qi.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19QW) += keyspan/usa19qw.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA19W) += keyspan/usa19w.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28) += keyspan/usa28.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28XA) += keyspan/usa28xa.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28XB) += keyspan/usa28xb.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA28X) += keyspan/usa28x.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA49W) += keyspan/usa49w.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_USA49WLC) += keyspan/usa49wlc.fw
-else
-fw-shipped- += keyspan/mpr.fw keyspan/usa18x.fw keyspan/usa19.fw	\
-	keyspan/usa19qi.fw keyspan/usa19qw.fw keyspan/usa19w.fw		\
-	keyspan/usa28.fw keyspan/usa28xa.fw keyspan/usa28xb.fw		\
-	keyspan/usa28x.fw keyspan/usa49w.fw keyspan/usa49wlc.fw
-endif
-fw-shipped-$(CONFIG_USB_SERIAL_TI) += ti_3410.fw ti_5052.fw \
-				      mts_cdma.fw mts_gsm.fw mts_edge.fw
-fw-shipped-$(CONFIG_USB_SERIAL_EDGEPORT) += edgeport/boot.fw edgeport/boot2.fw \
-					    edgeport/down.fw edgeport/down2.fw
-fw-shipped-$(CONFIG_USB_SERIAL_EDGEPORT_TI) += edgeport/down3.bin
-fw-shipped-$(CONFIG_USB_SERIAL_WHITEHEAT) += whiteheat_loader.fw whiteheat.fw \
-					   # whiteheat_loader_debug.fw
-fw-shipped-$(CONFIG_USB_SERIAL_KEYSPAN_PDA) += keyspan_pda/keyspan_pda.fw
-fw-shipped-$(CONFIG_USB_SERIAL_XIRCOM) += keyspan_pda/xircom_pgs.fw
-fw-shipped-$(CONFIG_USB_VICAM) += vicam/firmware.fw
-fw-shipped-$(CONFIG_VIDEO_CPIA2) += cpia2/stv0672_vp4.bin
-fw-shipped-$(CONFIG_YAM) += yam/1200.bin yam/9600.bin
-
-fw-shipped-all := $(fw-shipped-y) $(fw-shipped-m) $(fw-shipped-)
-
-quiet_cmd_ihex  = IHEX    $@
-      cmd_ihex  = $(OBJCOPY) -Iihex -Obinary $< $@
-
-quiet_cmd_ihex2fw  = IHEX2FW $@
-      cmd_ihex2fw  = $(objtree)/$(obj)/ihex2fw $< $@
-
-quiet_cmd_h16tofw  = H16TOFW $@
-      cmd_h16tofw  = $(objtree)/$(obj)/ihex2fw -w $< $@
-
 quiet_cmd_fwbin = MK_FW   $@
       cmd_fwbin = FWNAME="$(patsubst firmware/%.gen.S,%,$@)";		     \
 		  FWSTR="$(subst /,_,$(subst .,_,$(subst -,_,$(patsubst	     \
@@ -179,46 +42,14 @@ wordsize_deps := $(wildcard include/config/64bit.h include/config/32bit.h \
 		include/config/x86_32.h include/config/x86_64.h \
 		firmware/Makefile)
 
-$(patsubst %,$(obj)/%.gen.S, $(fw-shipped-y)): %: $(wordsize_deps)
-	$(call cmd,fwbin,$(patsubst %.gen.S,%,$@))
 $(patsubst %,$(obj)/%.gen.S, $(fw-external-y)): %: $(wordsize_deps) \
 		include/config/extra/firmware/dir.h
 	$(call cmd,fwbin,$(fwabs)/$(patsubst $(obj)/%.gen.S,%,$@))
 
 # The .o files depend on the binaries directly; the .S files don't.
-$(patsubst %,$(obj)/%.gen.o, $(fw-shipped-y)): %.gen.o: %
 $(patsubst %,$(obj)/%.gen.o, $(fw-external-y)): $(obj)/%.gen.o: $(fwdir)/%
 
-# .ihex is used just as a simple way to hold binary files in a source tree
-# where binaries are frowned upon. They are directly converted with objcopy.
-$(obj)/%: $(obj)/%.ihex
-	$(call cmd,ihex)
-
-# Don't depend on ihex2fw if we're installing and it already exists.
-# Putting it after | in the dependencies doesn't seem sufficient when
-# we're installing after a cross-compile, because ihex2fw has dependencies
-# on stuff like /usr/lib/gcc/ppc64-redhat-linux/4.3.0/include/stddef.h and 
-# thus wants to be rebuilt. Which it can't be, if the prebuilt kernel tree
-# is exported read-only for someone to run 'make install'.
-ifeq ($(INSTALL):$(wildcard $(obj)/ihex2fw),install:$(obj)/ihex2fw)
-ihex2fw_dep :=
-else
-ihex2fw_dep := $(obj)/ihex2fw
-endif
-
-# .HEX is also Intel HEX, but where the offset and length in each record
-# is actually meaningful, because the firmware has to be loaded in a certain
-# order rather than as a single binary blob. Thus, we convert them into our
-# more compact binary representation of ihex records (<linux/ihex.h>)
-$(obj)/%.fw: $(obj)/%.HEX $(ihex2fw_dep)
-	$(call cmd,ihex2fw)
-
-# .H16 is our own modified form of Intel HEX, with 16-bit length for records.
-$(obj)/%.fw: $(obj)/%.H16 $(ihex2fw_dep)
-	$(call cmd,h16tofw)
-
 obj-y				 += $(patsubst %,%.gen.o, $(fw-external-y))
-obj-$(CONFIG_FIRMWARE_IN_KERNEL) += $(patsubst %,%.gen.o, $(fw-shipped-y))
 
 ifeq ($(KBUILD_SRC),)
 # Makefile.build only creates subdirectories for O= builds, but external
@@ -226,13 +57,8 @@ ifeq ($(KBUILD_SRC),)
 _dummy := $(foreach d,$(addprefix $(obj)/,$(dir $(fw-external-y))), $(shell [ -d $(d) ] || mkdir -p $(d)))
 endif
 
-# Remove .S files and binaries created from ihex
-# (during 'make clean' .config isn't included so they're all in $(fw-shipped-))
-targets := $(fw-shipped-) $(patsubst $(obj)/%,%, \
-				$(shell find $(obj) -name \*.gen.S 2>/dev/null))
-
+targets := $(patsubst $(obj)/%,%, \
+                                $(shell find $(obj) -name \*.gen.S 2>/dev/null))
 # Without this, built-in.o won't be created when it's empty, and the
 # final vmlinux link will fail.
 obj- := dummy
-
-hostprogs-y := ihex2fw
diff --git a/firmware/README.AddingFirmware b/firmware/README.AddingFirmware
deleted file mode 100644
index bcb5f46aff83..000000000000
--- a/firmware/README.AddingFirmware
+++ /dev/null
@@ -1,45 +0,0 @@
-
-	DO NOT ADD FIRMWARE TO THIS DIRECTORY.
-	======================================
-
-This directory is only here to contain firmware images extracted from old
-device drivers which predate the common use of request_firmware().
-
-As we update those drivers to use request_firmware() and keep a clean
-separation between code and firmware, we put the extracted firmware
-here.
-
-This directory is _NOT_ for adding arbitrary new firmware images. The
-place to add those is the separate linux-firmware repository:
-
-    git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git
-
-That repository contains all these firmware images which have been
-extracted from older drivers, as well various new firmware images which
-we were never permitted to include in a GPL'd work, but which we _have_
-been permitted to redistribute under separate cover.
-
-To submit firmware to that repository, please send either a git binary
-diff or preferably a git pull request to:
-      linux-firmware@kernel.org
-and also cc: to related mailing lists.
-
-Your commit should include an update to the WHENCE file clearly
-identifying the licence under which the firmware is available, and
-that it is redistributable. If the licence is long and involved, it's
-permitted to include it in a separate file and refer to it from the
-WHENCE file.
-And if it were possible, a changelog of the firmware itself.
-
-Ideally, your commit should contain a Signed-Off-By: from someone
-authoritative on the licensing of the firmware in question (i.e. from
-within the company that owns the code).
-
-
-WARNING:
-=======
-
-Don't send any "CONFIDENTIALITY STATEMENT" in your e-mail, patch or
-request. Otherwise your firmware _will never be accepted_.
-
-Maintainers are really busy, so don't expect a prompt reply.
diff --git a/firmware/WHENCE b/firmware/WHENCE
deleted file mode 100644
index de6f22e008f1..000000000000
--- a/firmware/WHENCE
+++ /dev/null
@@ -1,854 +0,0 @@
-             **********
-             * WHENCE *
-             **********
-
-This file attempts to document the origin and licensing information,
-if known, for each piece of firmware distributed for use with the Linux
-kernel.
-
---------------------------------------------------------------------------
-
-Driver: ambassador -- Madge Ambassador (Collage PCI 155 Server) ATM NIC.
-
-File: firmware/atmsar11.fw
-
-Licence: Allegedly GPLv2+, but no source visible. Marked:
-
-  Madge Ambassador ATM Adapter microcode.
-  Copyright (C) 1995-1999  Madge Networks Ltd.
-
-  This microcode data is placed under the terms of the GNU General
-  Public License. The GPL is contained in /usr/doc/copyright/GPL on a
-  Debian system and in the file COPYING in the Linux kernel source.
-
-  We would prefer you not to distribute modified versions without
-  consultation and not to ask for assembly/other microcode source.
-
---------------------------------------------------------------------------
-
-Driver: korg1212 -- Korg 1212 IO audio device
-
-File: korg/k1212.dsp
-
-Licence: Unknown
-
-Found in alsa-firmware package in hex form; no licensing information.
-
---------------------------------------------------------------------------
-
-Driver: maestro3 -- ESS Allegro Maestro3 audio device
-
-File: ess/maestro3_assp_kernel.fw
-File: ess/maestro3_assp_minisrc.fw
-
-Licence: Unknown
-
-Found in alsa-firmware package in hex form with a comment claiming to
-be GPLv2+, but without source -- and with another comment saying "ESS
-drops binary dsp code images on our heads, but we don't get to see
-specs on the dsp."
-
---------------------------------------------------------------------------
-
-Driver: ymfpci -- Yamaha YMF724/740/744/754 audio devices
-
-File: yamaha/ds1_ctrl.fw
-File: yamaha/ds1_dsp.fw
-File: yamaha/ds1e_ctrl.fw
-
-Licence: Unknown
-
-Found alsa-firmware package in hex form, with the following comment:
-   Copyright (c) 1997-1999 Yamaha Corporation. All Rights Reserved.
-
---------------------------------------------------------------------------
-
-Driver: SCSI_ADVANSYS - AdvanSys SCSI
-
-File: advansys/mcode.bin
-File: advansys/3550.bin
-File: advansys/38C0800.bin
-File: advansys/38C1600.bin
-
-Licence: BSD, no source available.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: SCSI_QLOGIC_1280 - Qlogic QLA 1240/1x80/1x160 SCSI support
-
-File: qlogic/1040.bin
-File: qlogic/1280.bin
-File: qlogic/12160.bin
-
-Licence: Allegedly GPLv2+, but no source visible. Marked:
-
-                   QLOGIC LINUX SOFTWARE
-  QLogic ISP1280/ device driver for Linux 2.2.x and 2.4.x
-  Copyright (C) 2001 Qlogic Corporation (www.qlogic.com)
-
---------------------------------------------------------------------------
-
-Driver: kaweth -- USB KLSI KL5USB101-based Ethernet device
-
-File: kaweth/new_code.bin
-File: kaweth/new_code_fix.bin
-File: kaweth/trigger_code.bin
-File: kaweth/trigger_code_fix.bin
-
-Licence: Unknown
-
-Found in hex form in the kernel source.
-
---------------------------------------------------------------------------
-
-Driver: ttusb-budget -- Technotrend/Hauppauge Nova-USB devices
-
-File: ttusb-budget/dspbootcode.bin
-
-Licence: Unknown
-
-Found in hex form in the kernel source.
-
---------------------------------------------------------------------------
-
-Driver: keyspan -- USB Keyspan USA-xxx serial device
-
-File: keyspan/mpr.fw
-File: keyspan/usa18x.fw
-File: keyspan/usa19.fw
-File: keyspan/usa19qi.fw
-File: keyspan/usa19qw.fw
-File: keyspan/usa19w.fw
-File: keyspan/usa28.fw
-File: keyspan/usa28xa.fw
-File: keyspan/usa28xb.fw
-File: keyspan/usa28x.fw
-File: keyspan/usa49w.fw
-File: keyspan/usa49wlc.fw
-
-Converted from Intel HEX files, used in our binary representation of ihex.
-
-Original licence information:
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
-
---------------------------------------------------------------------------
-
-Driver: keyspan_pda -- USB Keyspan PDA single-port serial device
-
-File: keyspan_pda/keyspan_pda.fw
-Source: keyspan_pda/keyspan_pda.S
-
-File: keyspan_pda/xircom_pgs.fw
-Source: keyspan_pda/xircom_pgs.S
-
-Licence: GPLv2+
-
-Compiled from original 8051 source into Intel HEX, used in our binary ihex form.
-
---------------------------------------------------------------------------
-
-Driver: emi26 -- EMI 2|6 USB Audio interface
-
-File: emi26/bitstream.fw
-Info: VERSION=1.1.1.131 DATE=2001dec06
-
-File: emi26/firmware.fw
-Info: VERSION=1.0.2.916 DATE=12.02.2002
-
-File: emi26/loader.fw
-
-Converted from Intel HEX files, used in our binary representation of ihex.
-
-Original licence information:
-/*
- * This firmware is for the Emagic EMI 2|6 Audio Interface
- *
- * The firmware contained herein is Copyright (c) 1999-2002 Emagic
- * as an unpublished work. This notice does not imply unrestricted
- * or public access to this firmware which is a trade secret of Emagic,
- * and which may not be reproduced, used, sold or transferred to
- * any third party without Emagic's written consent. All Rights Reserved.
- *
- * Permission is hereby granted for the distribution of this firmware
- * image as part of a Linux or other Open Source operating system kernel
- * in text or binary form as required.
- *
- * This firmware may not be modified and may only be used with the
- * Emagic EMI 2|6 Audio Interface. Distribution and/or Modification of
- * any driver which includes this firmware, in whole or in part,
- * requires the inclusion of this statement.
- */
-
---------------------------------------------------------------------------
-
-Driver: emi62 -- EMI 6|2m USB Audio interface
-
-File: emi62/bitstream.fw
-Info: VERSION=1.0.0.191 DATE= 2002oct28
-
-File: emi62/loader.fw
-Source: EMILOAD.HEX
-Info: VERSION=1.0.2.002 DATE=10.01.2002
-
-File: emi62/midi.fw
-Source: EMI62MFW.HEX
-Info: VERSION=1.04.062 DATE=16.10.2002
-
-File: emi62/spdif.fw
-Source: EMI62SFW.HEX
-Info: VERSION=1.04.062 DATE=16.10.2002
-
-Converted from Intel HEX files, used in our binary representation of ihex.
-
-Original licence information: None
-
---------------------------------------------------------------------------
-
-Driver: ti_usb_3410_5052 -- USB TI 3410/5052 serial device
-
-File: ti_3410.fw
-Info: firmware 9/10/04 FW3410_Special_StartWdogOnStartPort
-
-File: ti_5052.fw
-Info: firmware 9/18/04
-
-Licence: Allegedly GPLv2+, but no source visible. Marked:
-	 Copyright (C) 2004 Texas Instruments
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: ti_usb_3410_5052 -- Multi-Tech USB cell modems
-
-File: mts_cdma.fw
-File: mts_gsm.fw
-File: mts_edge.fw
-
-Licence: "all firmware components are redistributable in binary form"
-         per support@multitech.com
-	 Copyright (C) 2005 Multi-Tech Systems, Inc.
-
-Found in hex form in ftp://ftp.multitech.com/wireless/wireless_linux.zip
-
---------------------------------------------------------------------------
-
-Driver: whiteheat -- USB ConnectTech WhiteHEAT serial device
-
-File: whiteheat.fw
-Version: 4.06
-
-File: whiteheat_loader.fw
-File: whiteheat_loader_debug.fw
-
-Licence: Allegedly GPLv2, but no source visible. Marked:
-	 Copyright (C) 2000-2002  ConnectTech Inc
-
-Debug loader claims the following behaviour:
-	Port 1 LED flashes when the vend_ax program is running
-	Port 2 LED flashes when any SETUP command arrives
-	Port 3 LED flashes when any valid VENDOR request occurs
-	Port 4 LED flashes when the EXTERNAL RAM DOWNLOAD request occurs
-
-Converted from Intel HEX files, used in our binary representation of ihex.
-
---------------------------------------------------------------------------
-
-Driver: CPiA2 -- cameras based on Vision's CPiA2
-
-File: cpia2/stv0672_vp4.bin
-
-Licence: Allegedly GPLv2+, but no source visible. Marked:
-	Copyright (C) 2001 STMicroelectronics, Inc.
-	Contact:  steve.miller@st.com
-	Description: This file contains patch data for the CPiA2 (stv0672) VP4.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: DABUSB -- Digital Audio Broadcasting (DAB) Receiver for USB and Linux
-
-File: dabusb/firmware.fw
-File: dabusb/bitstream.bin
-
-Licence: Distributable
-
- * Copyright (C) 1999 BayCom GmbH
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that redistributions of source
- * code retain the above copyright notice and this comment without
- * modification.
-
---------------------------------------------------------------------------
-
-Driver: USB_VICAM -- USB 3com HomeConnect (aka vicam)
-
-File: vicam/firmware.fw
-
-Licence: Unknown
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: USB_SERIAL_EDGEPORT - USB Inside Out Edgeport Serial Driver
-
-File: edgeport/boot.fw
-File: edgeport/boot2.fw
-File: edgeport/down.fw
-File: edgeport/down2.fw
-
-Licence: Allegedly GPLv2+, but no source visible. Marked:
-//**************************************************************
-//* Edgeport/4 Binary Image
-//* Generated by HEX2C v1.06
-//* Copyright (C) 1998 Inside Out Networks, All rights reserved.
-//**************************************************************
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: USB_SERIAL_EDGEPORT_TI - USB Inside Out Edgeport Serial Driver
-(TI Devices)
-
-File: edgeport/down3.bin
-
-Licence:
-//**************************************************************
-//* Edgeport Binary Image (for TI based products)
-//* Generated by TIBin2C v2.00 (watchport)
-//* Copyright (C) 2001 Inside Out Networks, All rights reserved.
-//**************************************************************
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: ATARI_DSP56K - Atari DSP56k support
-
-File: dsp56k/bootstrap.bin
-Source: dsp56k/bootstrap.asm
-
-Licence: GPLv2 or later
-
-DSP56001 assembler, possibly buildable with a56 from 
-http://www.zdomain.com/a56.html
-
---------------------------------------------------------------------------
-
-Driver: SND_SB16_CSP - Sound Blaster 16/AWE CSP support
-
-File: sb16/mulaw_main.csp
-File: sb16/alaw_main.csp
-File: sb16/ima_adpcm_init.csp
-File: sb16/ima_adpcm_playback.csp
-File: sb16/ima_adpcm_capture.csp
-
-Licence: Allegedly GPLv2+, but no source visible. Marked:
-/*
- *  Copyright (c) 1994 Creative Technology Ltd.
- *  Microcode files for SB16 Advanced Signal Processor
- */
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: CASSINI - Sun Cassini
-
-File: sun/cassini.bin
-
-Licence: Unknown
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: cxgb3 - Chelsio Terminator 3 1G/10G Ethernet adapter
-
-File: cxgb3/t3b_psram-1.1.0.bin.ihex
-File: cxgb3/t3c_psram-1.1.0.bin.ihex
-file: cxgb3/t3fw-7.4.0.bin.ihex
-
-License: GPLv2 or OpenIB.org BSD license, no source visible
-
---------------------------------------------------------------------------
-
-Driver: cxgb3 - Chelsio Terminator 3 1G/10G Ethernet adapter
-
-File: cxgb3/ael2005_opt_edc.bin.ihex
-File: cxgb3/ael2005_twx_edc.bin.ihex
-File: cxgb3/ael2020_twx_edc.bin.ihex
-
-Licence:
- *	Copyright (c) 2007-2009 NetLogic Microsystems, Inc.
- *
- *	Permission is hereby granted for the distribution of this firmware
- *	data in hexadecimal or equivalent format, provided this copyright
- *	notice is accompanying it.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: e100 -- Intel PRO/100 Ethernet NIC
-
-File: e100/d101m_ucode.bin
-File: e100/d101s_ucode.bin
-File: e100/d102e_ucode.bin
-
-Licence: Unknown
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: acenic -- Alteon AceNIC Gigabit Ethernet card
-
-File: acenic/tg1.bin
-File: acenic/tg2.bin
-
-Licence: Unknown
-
-Found in hex form in kernel source, but source allegedly available at
-http://alteon.shareable.org/
-
---------------------------------------------------------------------------
-
-Driver: tigon3 -- Broadcom Tigon3 based gigabit Ethernet cards
-
-File: tigon/tg3.bin
-File: tigon/tg3_tso.bin
-File: tigon/tg3_tso5.bin
-
-Licence:
- * Firmware is:
- *	Derived from proprietary unpublished source code,
- *	Copyright (C) 2000-2003 Broadcom Corporation.
- *
- *	Permission is hereby granted for the distribution of this firmware
- *	data in hexadecimal or equivalent format, provided this copyright
- *	notice is accompanying it.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: ADAPTEC_STARFIRE - Adaptec Starfire/DuraLAN support
-
-File: adaptec/starfire_rx.bin
-File: adaptec/starfire_tx.bin
-
-Licence: Allegedly GPLv2, but no source visible.
-
-Found in hex form in kernel source, with the following notice:
-
- BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE IT IS LICENSED "AS IS" AND
- THERE IS NO WARRANTY FOR THE PROGRAM, INCLUDING BUT NOT LIMITED TO THE
- IMPLIED WARRANTIES OF MERCHANTIBILITY OR FITNESS FOR A PARTICULAR PURPOSE
- (TO THE EXTENT PERMITTED BY APPLICABLE LAW). USE OF THE PROGRAM IS AT YOUR
- OWN RISK. IN NO EVENT WILL ADAPTEC OR ITS LICENSORS BE LIABLE TO YOU FOR
- DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
- ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM.
-
---------------------------------------------------------------------------
-
-Driver: TEHUTI - Tehuti Networks 10G Ethernet
-
-File: tehuti/bdx.bin
-
-Licence:
-
- Copyright (C) 2007 Tehuti Networks Ltd.
-
- Permission is hereby granted for the distribution of this firmware data
- in hexadecimal or equivalent format, provided this copyright notice is
- accompanying it.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: TYPHOON - 3cr990 series Typhoon
-
-File: 3com/typhoon.bin
-
-Licence:
-/*
- * Copyright 1999-2004 3Com Corporation.  All Rights Reserved.
- *
- * Redistribution and use in source and binary forms of the 3c990img.h
- * microcode software are permitted provided that the following conditions
- * are met:
- * 1. Redistribution of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistribution in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. The name of 3Com may not be used to endorse or promote products
- *    derived from this software without specific prior written permission
- *
- * THIS SOFTWARE IS PROVIDED BY 3COM ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * USER ACKNOWLEDGES AND AGREES THAT PURCHASE OR USE OF THE 3c990img.h
- * MICROCODE SOFTWARE WILL NOT CREATE OR GIVE GROUNDS FOR A LICENSE BY
- * IMPLICATION, ESTOPPEL, OR OTHERWISE IN ANY INTELLECTUAL PROPERTY RIGHTS
- * (PATENT, COPYRIGHT, TRADE SECRET, MASK WORK, OR OTHER PROPRIETARY RIGHT)
- * EMBODIED IN ANY OTHER 3COM HARDWARE OR SOFTWARE EITHER SOLELY OR IN
- * COMBINATION WITH THE 3c990img.h MICROCODE SOFTWARE
- */
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: YAM - YAM driver for AX.25
-
-File: yam/1200.bin
-File: yam/9600.bin
-
-Licence:
- * (C) F6FBB 1998
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: PCMCIA_PCNET - NE2000 compatible PCMCIA adapter
-
-File: cis/LA-PCM.cis
-      cis/PCMLM28.cis
-      cis/DP83903.cis
-      cis/NE2K.cis
-      cis/tamarack.cis
-      cis/PE-200.cis
-      cis/PE520.cis
-
-Licence: GPL
-
-Originally developed by the pcmcia-cs project
-
---------------------------------------------------------------------------
-
-Driver: PCMCIA_3C589 - 3Com PCMCIA adapter
-
-File: cis/3CXEM556.cis
-
-Licence: GPL
-
-Originally developed by the pcmcia-cs project
-
---------------------------------------------------------------------------
-
-Driver: PCMCIA_3C574 - 3Com PCMCIA adapter
-
-File: cis/3CCFEM556.cis
-
-Licence: GPL
-
-Originally developed by the pcmcia-cs project
-
---------------------------------------------------------------------------
-
-Driver: SERIAL_8250_CS - Serial PCMCIA adapter
-
-File: cis/MT5634ZLX.cis
-      cis/RS-COM-2P.cis
-      cis/COMpad2.cis
-      cis/COMpad4.cis
-      cis/SW_555_SER.cis
-      cis/SW_7xx_SER.cis
-      cis/SW_8xx_SER.cis
-
-Licence: GPL
-
-Originally developed by the pcmcia-cs project
-
---------------------------------------------------------------------------
-
-Driver: PCMCIA_SMC91C92 - SMC 91Cxx PCMCIA
-
-File: ositech/Xilinx7OD.bin
-
-Licence: Allegedly GPL, but no source visible. Marked:
-    This file contains the firmware of Seven of Diamonds from OSITECH.
-    (Special thanks to Kevin MacPherson of OSITECH)
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: SCSI_QLOGICPTI - PTI Qlogic, ISP Driver
-
-File: qlogic/isp1000.bin
-
-Licence: Unknown
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: MYRI_SBUS - MyriCOM Gigabit Ethernet
-
-File: myricom/lanai.bin
-
-Licence: Unknown
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: bnx2x: Broadcom Everest
-
-File: bnx2x/bnx2x-e1-6.2.9.0.fw
-File: bnx2x/bnx2x-e1h-6.2.9.0.fw
-File: bnx2x/bnx2x-e2-6.2.9.0.fw
-
-License:
-  Copyright (c) 2007-2011 Broadcom Corporation
-
-  This file contains firmware data derived from proprietary unpublished
-  source code, Copyright (c) 2007-2011 Broadcom Corporation.
-
-  Permission is hereby granted for the distribution of this firmware data
-  in hexadecimal or equivalent format, provided this copyright notice is
-  accompanying it.
-
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: BNX2 - Broadcom NetXtremeII
-
-File: bnx2/bnx2-mips-06-6.2.1.fw
-File: bnx2/bnx2-rv2p-06-6.0.15.fw
-File: bnx2/bnx2-mips-09-6.2.1a.fw
-File: bnx2/bnx2-rv2p-09-6.0.17.fw
-File: bnx2/bnx2-rv2p-09ax-6.0.17.fw
-
-Licence:
-
- This file contains firmware data derived from proprietary unpublished
- source code, Copyright (c) 2004 - 2010 Broadcom Corporation.
-
- Permission is hereby granted for the distribution of this firmware data
- in hexadecimal or equivalent format, provided this copyright notice is
- accompanying it.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: DVB AV7110 -- AV7110 cards
-
-File: av7110/bootcode.bin
-
-Licence: GPLv2 or later
-
-ARM assembly source code available at https://linuxtv.org/downloads/firmware/Boot.S
-
---------------------------------------------------------------------------
-
-Driver: wavefront - ISA WaveFront sound card
-
-File: yamaha/yss225_registers.bin
-
-Licence: Allegedly GPLv2+, but no source visible.
-
-Found in hex form in kernel source, with the following comment:
-   Copyright (c) 1998-2002 by Paul Davis <pbd@op.net>
-
---------------------------------------------------------------------------
-
-Driver: mga - Matrox G200/G400/G550
-
-File: matrox/g200_warp.fw
-File: matrox/g400_warp.fw
-
-Licence:
-
-Copyright 1999 Matrox Graphics Inc.
-All Rights Reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a
-copy of this software and associated documentation files (the "Software"),
-to deal in the Software without restriction, including without limitation
-the rights to use, copy, modify, merge, publish, distribute, sublicense,
-and/or sell copies of the Software, and to permit persons to whom the
-Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included
-in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-MATROX GRAPHICS INC., OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
-DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
-OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
-OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: r128 - ATI Rage 128
-
-File: r128/r128_cce.bin
-
-Licence:
-
-Copyright 2000 Advanced Micro Devices, Inc.
-
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
-
-Found in decimal form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: radeon - ATI Radeon
-
-File: radeon/R100_cp.bin
-File: radeon/R200_cp.bin
-File: radeon/R300_cp.bin
-File: radeon/R420_cp.bin
-File: radeon/RS600_cp.bin
-File: radeon/RS690_cp.bin
-File: radeon/R520_cp.bin
-File: radeon/R600_pfp.bin
-File: radeon/R600_me.bin
-File: radeon/RV610_pfp.bin
-File: radeon/RV610_me.bin
-File: radeon/RV630_pfp.bin
-File: radeon/RV630_me.bin
-File: radeon/RV620_pfp.bin
-File: radeon/RV620_me.bin
-File: radeon/RV635_pfp.bin
-File: radeon/RV635_me.bin
-File: radeon/RV670_pfp.bin
-File: radeon/RV670_me.bin
-File: radeon/RS780_pfp.bin
-File: radeon/RS780_me.bin
-File: radeon/RV770_pfp.bin
-File: radeon/RV770_me.bin
-File: radeon/RV730_pfp.bin
-File: radeon/RV730_me.bin
-File: radeon/RV710_pfp.bin
-File: radeon/RV710_me.bin
-
-Licence:
-
- * Copyright 2007-2009 Advanced Micro Devices, Inc.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice (including the next
- * paragraph) shall be included in all copies or substantial portions of the
- * Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
-
-Driver: ib_qib - QLogic Infiniband
-
-File: qlogic/sd7220.fw
-
-Licence:
-
- * Copyright (c) 2007, 2008 QLogic Corporation. All rights reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the
- * OpenIB.org BSD license below:
- *
- *     Redistribution and use in source and binary forms, with or
- *     without modification, are permitted provided that the following
- *     conditions are met:
- *
- *      - Redistributions of source code must retain the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer.
- *
- *      - Redistributions in binary form must reproduce the above
- *        copyright notice, this list of conditions and the following
- *        disclaimer in the documentation and/or other materials
- *        provided with the distribution.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
- * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
- * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
- * SOFTWARE.
-
-Found in hex form in kernel source.
-
---------------------------------------------------------------------------
diff --git a/firmware/acenic/tg1.bin.ihex b/firmware/acenic/tg1.bin.ihex
deleted file mode 100644
index bef2659d3645..000000000000
--- a/firmware/acenic/tg1.bin.ihex
+++ /dev/null
@@ -1,4573 +0,0 @@
-:100000000C040B0000004000000040001000000342
-:10001000000000000000000D0000000D3C1D00016C
-:100020008FBD5C5403A0F0213C100000261040005E
-:100030000C00100C000000000000000D27BDFFD8D0
-:100040003C1CC0003C1B0013377BD8000000D021B3
-:100050003C17001336F7541802E02021340583E8DA
-:10006000AFBF00240C002488AFB000200C0023E8B0
-:10007000000000003C040001248451A42405000178
-:1000800002E03021000038213C10000126107E5093
-:10009000AFB000100C002403AFBB00143C02000FF3
-:1000A0003442FFFF020210240362102B10400009AB
-:1000B000240500033C040001248451B002003021D7
-:1000C000036038213C020010AFA200100C00240392
-:1000D000AFA00014000020213405C0003C01000145
-:1000E00000370821A02083B03C010001003708211F
-:1000F000A02083B23C01000100370821A02083B377
-:100100003C01000100370821AC2083B4A2E004D8F0
-:10011000000418C02484000100771021AC40727CD8
-:1001200000771021AC40728002E31021A445727C5C
-:100130002C8200201440FFF7000418C0000020218A
-:100140003405C000000418C0248400010077102189
-:10015000AC40737C00771021AC40738002E3102127
-:10016000A445737C2C8200805440FFF7000418C023
-:10017000AF800054AF80011C8F82004434420040A5
-:10018000AF8200448F82004434420020AF8200449A
-:100190008F420218304200021040000900000000A7
-:1001A0008F4202203C030002346300040043102508
-:1001B000AEE204C48F42021C0800107434420004F2
-:1001C0008F4202203C0300023463000600431025E6
-:1001D000AEE204C48F42021C34420006AEE204CCFC
-:1001E0008F420218304200101040000A0000000048
-:1001F0008F42021C34420004AEE204C88F42022047
-:100200003C03000A34630004004310250800108AF0
-:10021000AEE204C08F4202203C03000A34630006B1
-:1002200000431025AEE204C08F42021C3442000697
-:10023000AEE204C88F4202183042020010400003B0
-:100240002402000108001091A2E27248A2E0724864
-:1002500024020001AF8200A0AF8200B08F8300545F
-:100260008F82005408001099246300648F82005428
-:10027000006210232C4200651440FFFC00000000C7
-:10028000AF8000448F4202088F43020CAEE20010A0
-:10029000AEE300148EE400108EE5001426E2003078
-:1002A000AEE2002824020490AEE20018AF84009071
-:1002B000AF8500948EE20028AF8200B496E2001A67
-:1002C000AF82009C8F8200B08EE304CC00431025E7
-:1002D000AF8200B08F8200B0304200041440FFFDB6
-:1002E000000000008EE204508EE30454AEE304FCF0
-:1002F0008EE204FC2442E0002C4220011440000D58
-:1003000026E400308EE204508EE304543C040001E5
-:10031000248451BC3C050001AFA00010AFA0001424
-:100320008EE704FC34A5F0000C00240300603021AB
-:1003300026E400300C0024882405040027440080B3
-:100340000C0024882405008026E4777C0C00248897
-:10035000240504008F42025C26E40094AEE20060B3
-:100360008F4202602745020024060008AEE20068C2
-:10037000240200060C00249AAEE200643C023B9A80
-:100380003442CA000000202124030002AEE30074BE
-:10039000AEE30070AEE2006C240203E8AEE20104BA
-:1003A00024020001AEE30100AEE2010C3C030001B7
-:1003B0000064182190635C2002E410212484000171
-:1003C000A043009C2C82000F1440FFF800000000A6
-:1003D0008F82004002E418212484000100021702E9
-:1003E00024420030A062009C02E41021A040009C46
-:1003F00096E2046A30420003144000090000000045
-:1004000096E2047A30420003504001313C03080078
-:1004100096E2046A304200031040002A3C020700C2
-:1004200096E2047A30420003104000263C020700A6
-:1004300096E3047A96E2046A146200223C02070002
-:100440008EE204C024030001A2E34E2034420E00D9
-:10045000AEE204C08F420218304201001040000595
-:10046000000000003C0200012442E1680800111D68
-:10047000000211003C0200012442D35C0002110082
-:10048000000211823C030800004310253C010001DA
-:10049000AC2212383C0200012442F6800002110016
-:1004A000000211823C030800004310253C010001BA
-:1004B000AC2212788EE2000034424000080012386C
-:1004C000AEE2000034423000AFA200188EE206080F
-:1004D0008F43022824420001304900FF512300E2EB
-:1004E000AFA000108EE20608000210C000571021D5
-:1004F0008FA300188FA4001CAC43060CAC4406105C
-:100500008F8701202762380024E800200102102B89
-:1005100050400001276830008F820128110200043A
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-/* tg1 firmware v12.4.11 */
diff --git a/firmware/acenic/tg2.bin.ihex b/firmware/acenic/tg2.bin.ihex
deleted file mode 100644
index a9ff4f431f22..000000000000
--- a/firmware/acenic/tg2.bin.ihex
+++ /dev/null
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-/* tg2 firmware v12.4.11 */
diff --git a/firmware/adaptec/starfire_rx.bin.ihex b/firmware/adaptec/starfire_rx.bin.ihex
deleted file mode 100644
index 6b1fae0d18eb..000000000000
--- a/firmware/adaptec/starfire_rx.bin.ihex
+++ /dev/null
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diff --git a/firmware/adaptec/starfire_tx.bin.ihex b/firmware/adaptec/starfire_tx.bin.ihex
deleted file mode 100644
index 6b1fae0d18eb..000000000000
--- a/firmware/adaptec/starfire_tx.bin.ihex
+++ /dev/null
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diff --git a/firmware/advansys/3550.bin.ihex b/firmware/advansys/3550.bin.ihex
deleted file mode 100644
index 6809b0d84e4f..000000000000
--- a/firmware/advansys/3550.bin.ihex
+++ /dev/null
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-/* Microcode buffer is kept after initialization for error recovery. */
diff --git a/firmware/advansys/38C0800.bin.ihex b/firmware/advansys/38C0800.bin.ihex
deleted file mode 100644
index a60b447ff74a..000000000000
--- a/firmware/advansys/38C0800.bin.ihex
+++ /dev/null
@@ -1,336 +0,0 @@
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-/* Microcode buffer is kept after initialization for error recovery. */
diff --git a/firmware/advansys/38C1600.bin.ihex b/firmware/advansys/38C1600.bin.ihex
deleted file mode 100644
index 18c7c4862046..000000000000
--- a/firmware/advansys/38C1600.bin.ihex
+++ /dev/null
@@ -1,398 +0,0 @@
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-:0E18B00004FE8383330B770EA802FF66000050
-:00000001FF
-/* Microcode buffer is kept after initialization for error recovery. */
diff --git a/firmware/advansys/mcode.bin.ihex b/firmware/advansys/mcode.bin.ihex
deleted file mode 100644
index cd160d938667..000000000000
--- a/firmware/advansys/mcode.bin.ihex
+++ /dev/null
@@ -1,147 +0,0 @@
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-:04090000A001E684E8
-:00000001FF
-/* Microcode buffer is kept after initialization for error recovery. */
diff --git a/firmware/atmsar11.HEX b/firmware/atmsar11.HEX
deleted file mode 100644
index dfddc190ac24..000000000000
--- a/firmware/atmsar11.HEX
+++ /dev/null
@@ -1,204 +0,0 @@
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-/*
-  Madge Ambassador ATM Adapter microcode.
-  Copyright (C) 1995-1999  Madge Networks Ltd.
-
-  This microcode data is placed under the terms of the GNU General
-  Public License. The GPL is contained in /usr/doc/copyright/GPL on a
-  Debian system and in the file COPYING in the Linux kernel source.
-
-  We would prefer you not to distribute modified versions without
-  consultation and not to ask for assembly/other microcode source.
-*/
-
-First record is start address in a __be32.
diff --git a/firmware/av7110/Boot.S b/firmware/av7110/Boot.S
deleted file mode 100644
index d562fdc2908f..000000000000
--- a/firmware/av7110/Boot.S
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
-   Boot.S: boot loader for Siemens DVB-S card
-
-   Copyright (C) 2001 Convergence integrated media GmbH
-	              Written by Ralph Metzler
-		                 <rjkm@convergence.de>
-   Copyright (C) 2006 Matthieu CASTET <castet.mattheiu@free.fr>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-
-*/
-
-/*
-	check AV711x_3_1.pdf for some hardware infos
-	build it with :
-	$ cc -mbig-endian -c Boot.S
-	$ ld -Ttext 0x2c000000 -EB -o Boot Boot.o
-	$ objcopy -Obinary Boot
-*/
-
-	.text
-	.align
-	.globl _start
-_start:
-	b reset			// reset vector
-	movs  pc, r14           // undefined
-	subs  pc, r14, #4       // SWI
-	subs  pc, r14, #4       // prefetch abort
-	subs  pc, r14, #8       // data abort
-	subs  pc, r14, #4       // reserved
-	subs  pc, r14, #4       // IRQ
-	subs  pc, r14, #4       // FIQ
-
-	.word tbl               // table needed by firmware ROM
-tbl:	.word (endtbl - tbl)
-	.word 0
-  	.word conf
-endtbl:	.word 0
-conf:	.word 0xa5a55a5a
-	.word 0x001f1555
-	.word 0x00000009
-
-reset:	ldr	r13, buffer
-	ldr	r4, flag
-	mov	r0, #0
-	str	r0, [r4]
-	str	r0, [r4, #4]
-
-	ldr		r1, wait_address
-	ldr		r2, flag_address
-	ldr		r3, sram
-
-copycode: // copy the code HW Sram
-	ldmia	r1!, {r5-r12}
-	stmia	r3!, {r5-r12}
-	cmp		r1, r2
-	ble 	copycode
-	ldr		pc, sram // jump to the copied code
-
-wait:	ldrh	r1, [r4]        // wait for flag!=0
- 	cmp	r1, #0
-	beq	wait
-
-	mov	r1, r13         // buffer address
- 	ldr	r3, [r4,#4]     // destaddr
-
- 	ldrh	r2, [r4,#2]     // get segment length
-	add     r2, r2, #63     // round length to next 64 bytes
-	movs	r2, r2, lsr #6  // and divide by 64
-	moveq	r0, #2          // if 0, set flag to 2, else signal
-	strh	r0, [r4]        // that buffer is accepted by setting to 0
-        beq wait
-	
-copyloop:
-	ldmia	r1!, {r5-r12}
-	stmia	r3!, {r5-r12}
-	ldmia	r1!, {r5-r12}
-	stmia	r3!, {r5-r12}
- 	subs	r2, r2, #1
- 	bne	copyloop
-
-	eor     r13, r13, #0x1400    // switch to other buffer
-	b	wait
-
-// flag is stored at 0x2c0003f8, length at 0x2c0003fa,
-// destaddr at 0x2c0003fc
-
-flag:	.word	0x2c0003f8
-
-
-// buffer 1 is at 0x2c000400, buffer 2 at 0x2c001000
-
-buffer:	.word	0x2c000400
-
-sram: .word   0x9e000800
-wait_address: .word   wait
-flag_address: .word   flag
diff --git a/firmware/av7110/bootcode.bin.ihex b/firmware/av7110/bootcode.bin.ihex
deleted file mode 100644
index 26a2993e0723..000000000000
--- a/firmware/av7110/bootcode.bin.ihex
+++ /dev/null
@@ -1,15 +0,0 @@
-:10000000EA00000EE1B0F00EE25EF004E25EF00401
-:10001000E25EF008E25EF004E25EF004E25EF0040C
-:100020002C0000240000000C000000002C00003414
-:1000300000000000A5A55A5A001F15550000000930
-:10004000E59FD07CE59F4074E3A00000E5840000BC
-:10005000E5840004E59F1070E59F2070E59F306403
-:10006000E8B11FE0E8A31FE0E1510002DAFFFFFB67
-:10007000E59FF050E1D410B0E35100000AFFFFFC0F
-:10008000E1A0100DE5943004E1D420B2E282203FDB
-:10009000E1B0232203A00002E1C400B00AFFFFF494
-:1000A000E8B11FE0E8A31FE0E8B11FE0E8A31FE00C
-:1000B000E25220011AFFFFF9E22DDB05EAFFFFEC17
-:1000C0002C0003F82C0004009E0008002C00007493
-:0400D0002C0000C040
-:00000001FF
diff --git a/firmware/bnx2/bnx2-mips-06-6.2.1.fw.ihex b/firmware/bnx2/bnx2-mips-06-6.2.1.fw.ihex
deleted file mode 100644
index 4c43b26af0a6..000000000000
--- a/firmware/bnx2/bnx2-mips-06-6.2.1.fw.ihex
+++ /dev/null
@@ -1,5818 +0,0 @@
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-/*
- * This file contains firmware data derived from proprietary unpublished
- * source code, Copyright (c) 2004 - 2009 Broadcom Corporation.
- *
- * Permission is hereby granted for the distribution of this firmware data
- * in hexadecimal or equivalent format, provided this copyright notice is
- * accompanying it.
- */
diff --git a/firmware/bnx2/bnx2-mips-09-6.2.1a.fw.ihex b/firmware/bnx2/bnx2-mips-09-6.2.1a.fw.ihex
deleted file mode 100644
index 05e710248d2c..000000000000
--- a/firmware/bnx2/bnx2-mips-09-6.2.1a.fw.ihex
+++ /dev/null
@@ -1,6512 +0,0 @@
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-:00000001FF
-/*
- * This file contains firmware data derived from proprietary unpublished
- * source code, Copyright (c) 2004 - 2009 Broadcom Corporation.
- *
- * Permission is hereby granted for the distribution of this firmware data
- * in hexadecimal or equivalent format, provided this copyright notice is
- * accompanying it.
- */
diff --git a/firmware/bnx2/bnx2-rv2p-06-6.0.15.fw.ihex b/firmware/bnx2/bnx2-rv2p-06-6.0.15.fw.ihex
deleted file mode 100644
index dcc443e210f5..000000000000
--- a/firmware/bnx2/bnx2-rv2p-06-6.0.15.fw.ihex
+++ /dev/null
@@ -1,366 +0,0 @@
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-:00000001FF
-/*
- * This file contains firmware data derived from proprietary unpublished
- * source code, Copyright (c) 2004 - 2009 Broadcom Corporation.
- *
- * Permission is hereby granted for the distribution of this firmware data
- * in hexadecimal or equivalent format, provided this copyright notice is
- * accompanying it.
- */
diff --git a/firmware/bnx2/bnx2-rv2p-09-6.0.17.fw.ihex b/firmware/bnx2/bnx2-rv2p-09-6.0.17.fw.ihex
deleted file mode 100644
index 435203d64305..000000000000
--- a/firmware/bnx2/bnx2-rv2p-09-6.0.17.fw.ihex
+++ /dev/null
@@ -1,392 +0,0 @@
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-:00000001FF
-/*
- * This file contains firmware data derived from proprietary unpublished
- * source code, Copyright (c) 2004 - 2009 Broadcom Corporation.
- *
- * Permission is hereby granted for the distribution of this firmware data
- * in hexadecimal or equivalent format, provided this copyright notice is
- * accompanying it.
- */
diff --git a/firmware/bnx2/bnx2-rv2p-09ax-6.0.17.fw.ihex b/firmware/bnx2/bnx2-rv2p-09ax-6.0.17.fw.ihex
deleted file mode 100644
index d2f275788f16..000000000000
--- a/firmware/bnx2/bnx2-rv2p-09ax-6.0.17.fw.ihex
+++ /dev/null
@@ -1,425 +0,0 @@
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-:00000001FF
-/*
- * This file contains firmware data derived from proprietary unpublished
- * source code, Copyright (c) 2004 - 2009 Broadcom Corporation.
- *
- * Permission is hereby granted for the distribution of this firmware data
- * in hexadecimal or equivalent format, provided this copyright notice is
- * accompanying it.
- */
diff --git a/firmware/bnx2x/bnx2x-e1-6.2.9.0.fw.ihex b/firmware/bnx2x/bnx2x-e1-6.2.9.0.fw.ihex
deleted file mode 100644
index 0ed7f5891184..000000000000
--- a/firmware/bnx2x/bnx2x-e1-6.2.9.0.fw.ihex
+++ /dev/null
@@ -1,9484 +0,0 @@
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diff --git a/firmware/bnx2x/bnx2x-e1h-6.2.9.0.fw.ihex b/firmware/bnx2x/bnx2x-e1h-6.2.9.0.fw.ihex
deleted file mode 100644
index ba1ce53df1d8..000000000000
--- a/firmware/bnx2x/bnx2x-e1h-6.2.9.0.fw.ihex
+++ /dev/null
@@ -1,13192 +0,0 @@
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diff --git a/firmware/bnx2x/bnx2x-e2-6.2.9.0.fw.ihex b/firmware/bnx2x/bnx2x-e2-6.2.9.0.fw.ihex
deleted file mode 100644
index 8405e719e7fb..000000000000
--- a/firmware/bnx2x/bnx2x-e2-6.2.9.0.fw.ihex
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diff --git a/firmware/cis/.gitignore b/firmware/cis/.gitignore
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index 1de39847f261..000000000000
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diff --git a/firmware/cis/3CCFEM556.cis.ihex b/firmware/cis/3CCFEM556.cis.ihex
deleted file mode 100644
index e4d92b173e17..000000000000
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+++ /dev/null
@@ -1,13 +0,0 @@
-:1000000001030000FF152D050033436F6D004D65A2
-:100010006761686572747A2033434346454D3535D0
-:1000200036004C414E202B2035366B204D6F6465D9
-:100030006D0000FF20040101560521020000060B9F
-:1000400002004D000000006B000000FF001303439E
-:100050004953210206001A060507001067021B0912
-:1000600087011901556430FFFFFF00130343495313
-:10007000210202001A060527001177021B09A701B9
-:090080001901552330FFFFFF00B8
-:00000001FF
-#
-# This card is MFC-compliant, but identifies itself as single function
-#
diff --git a/firmware/cis/3CXEM556.cis.ihex b/firmware/cis/3CXEM556.cis.ihex
deleted file mode 100644
index 895010b230ff..000000000000
--- a/firmware/cis/3CXEM556.cis.ihex
+++ /dev/null
@@ -1,13 +0,0 @@
-:1000000001030000FF152C050033436F6D004D65A3
-:100010006761686572747A20334358454D353536CB
-:10002000004C414E202B2035366B204D6F64656DA2
-:100030000000FF20040101350021020000060B0230
-:10004000004C0000000069000000FF00130343495A
-:1000500053210206001A0501070008631B098701E6
-:100060001901556430FFFFFF001303434953210278
-:1000700002001A0501270009631B09A70119015590
-:060080002330FFFFFF002A
-:00000001FF
-#
-# This card is MFC-compliant, but identifies itself as single function
-#
diff --git a/firmware/cis/COMpad2.cis.ihex b/firmware/cis/COMpad2.cis.ihex
deleted file mode 100644
index 1671c5e48caa..000000000000
--- a/firmware/cis/COMpad2.cis.ihex
+++ /dev/null
@@ -1,11 +0,0 @@
-:1000000001030000FF151F0401414456414E5445B1
-:10001000434800434F4D7061642D33322F38350013
-:10002000312E300000FF210202011A0501050001F6
-:10003000031B0EC18118AA61E80207E8030730B864
-:100040009E1B08820108AA6030030F1B0883010869
-:10005000AA6040030F1B08840108AA6050030F1B0D
-:0D00600008850108AA6060030F1400FF006E
-:00000001FF
-#
-# Replacement CIS for Advantech COMpad-32/85
-#
diff --git a/firmware/cis/COMpad4.cis.ihex b/firmware/cis/COMpad4.cis.ihex
deleted file mode 100644
index 27bbec1921b3..000000000000
--- a/firmware/cis/COMpad4.cis.ihex
+++ /dev/null
@@ -1,9 +0,0 @@
-:1000000001030000FF151F0401414456414E5445B1
-:10001000434800434F4D7061642D33322F383542D1
-:100020002D34000000FF210202011A050102000127
-:10003000011B0BC18118AA6040021F30B89E1B082B
-:0C004000820108AA6040031F1400FF00AA
-:00000001FF
-#
-# Replacement CIS for Advantech COMpad-32/85B-4
-#
diff --git a/firmware/cis/DP83903.cis.ihex b/firmware/cis/DP83903.cis.ihex
deleted file mode 100644
index 6d73ea3cf1b8..000000000000
--- a/firmware/cis/DP83903.cis.ihex
+++ /dev/null
@@ -1,14 +0,0 @@
-:1000000001030000FF152904014D756C74696675C4
-:100010006E6374696F6E20436172640000004E531A
-:1000200043204D46204C414E2F4D6F64656D00FFBF
-:1000300020047501000021020000060B02004900A7
-:100040000000006A000000FF00130343495321022F
-:1000500006001A060517201077021B0C970179017C
-:10006000556530FFFF284000FF001303434953212B
-:100070000202001A060507401077021B09870119C2
-:0800800001552330FFFFFF00D2
-:00000001FF
-#
-# This CIS is for cards based on the National Semiconductor
-# DP83903 Multiple Function Interface Chip
-#
diff --git a/firmware/cis/LA-PCM.cis.ihex b/firmware/cis/LA-PCM.cis.ihex
deleted file mode 100644
index a0ff0c7b393d..000000000000
--- a/firmware/cis/LA-PCM.cis.ihex
+++ /dev/null
@@ -1,20 +0,0 @@
-:100000000105D4F953E9FF17035338FF20040FC04B
-:1000100002002102060315390401416C6C69656414
-:100020002054656C657369732C4B2E4B00457468C6
-:1000300065726E6574204C414E20436172640043CA
-:10004000656E747265434F4D004C412D50434D0019
-:10005000FF1A0602100000020B1B08810108E06075
-:1000600000021F1B08820108E06020021F1B08839A
-:100070000108E06040021F1B08840108E060600284
-:100080001F1B08850108E06080021F1B088601080D
-:10009000E060A0021F1B08870108E060C0021F1B70
-:1000A00008880108E060E0021F1B08890108E06081
-:1000B00000031F1B088A0108E06020031F1B088B38
-:1000C0000108E06040031F1B088C0108E06060032A
-:1000D0001F1B088D0108E06080031F1B088E0108AC
-:1000E000E060A0031F1B088F0108E060C0031F1B16
-:0D00F00008900108E060E0031F1400FF000D
-:00000001FF
-#
-# Replacement CIS for Allied Telesis LA-PCM
-#
diff --git a/firmware/cis/MT5634ZLX.cis.ihex b/firmware/cis/MT5634ZLX.cis.ihex
deleted file mode 100644
index 72500b9d95d8..000000000000
--- a/firmware/cis/MT5634ZLX.cis.ihex
+++ /dev/null
@@ -1,11 +0,0 @@
-:100000000101FF152204014D756C74695465636824
-:100010000050434D4349412035364B2044617461C3
-:10002000466178000000FF20040002010021020266
-:10003000001A05012780FF671B0FCF418B01550177
-:10004000550155AA60F80307281B08970108AA6004
-:10005000F802071B089F0108AA60E803071B08A70E
-:0B0060000108AA60E802071400FF007E
-:00000001FF
-#
-# Replacement CIS for Multitech MT5634ZLX modems
-#
diff --git a/firmware/cis/NE2K.cis.ihex b/firmware/cis/NE2K.cis.ihex
deleted file mode 100644
index 1bb40fc4759f..000000000000
--- a/firmware/cis/NE2K.cis.ihex
+++ /dev/null
@@ -1,8 +0,0 @@
-:1000000001030000FF1515040150434D4349410011
-:1000100045746865726E6574000000FF2102060079
-:100020001A050120F803031B09E001190155653089
-:06003000FFFF1400FF00B9
-:00000001FF
-#
-# Replacement CIS for various busted NE2000-compatible cards
-#
diff --git a/firmware/cis/PCMLM28.cis.ihex b/firmware/cis/PCMLM28.cis.ihex
deleted file mode 100644
index ffdfe8522ef5..000000000000
--- a/firmware/cis/PCMLM28.cis.ihex
+++ /dev/null
@@ -1,18 +0,0 @@
-:1000000001030000FF151504014C494E4B53595391
-:100010000050434D4C4D3238000000FF2004430196
-:10002000ABC0210200001A05012FF803031B10E4E6
-:1000300001190155E06100031FF8020730FFFF1BA3
-:100040000BA50108E06120031FF802071B0BA601A6
-:1000500008E06140031FF802071B0BA70108E061DD
-:1000600060031FF802071B0BA80108E06100031FD3
-:10007000E803071B0BA90108E06120031FE8030741
-:100080001B0BAA0108E06140031FE803071B0BAB31
-:100090000108E06160031FE803071B0BAC0108E0E7
-:1000A0006100031FE802071B0BAD0108E06120039C
-:1000B0001FE802071B0BAE0108E06140031FE802C6
-:1000C000071B0BAF0108E06160031FE80207140083
-:0200D000FF002F
-:00000001FF
-#
-# The on-card CIS says it is MFC-compliant, but it is not
-#
diff --git a/firmware/cis/PE-200.cis.ihex b/firmware/cis/PE-200.cis.ihex
deleted file mode 100644
index e6dbdab6eb79..000000000000
--- a/firmware/cis/PE-200.cis.ihex
+++ /dev/null
@@ -1,9 +0,0 @@
-:1000000001030000FF151E0401504D582020200060
-:1000100050452D3230300045544845524E4554002D
-:1000200052303100FF210206031A050101000101CF
-:100030001B0EC181190155E051000F100F30FFFF59
-:040040001400FF00A9
-:00000001FF
-#
-# Replacement CIS for PE-200 ethernet card
-#
diff --git a/firmware/cis/PE520.cis.ihex b/firmware/cis/PE520.cis.ihex
deleted file mode 100644
index 97a745b5496e..000000000000
--- a/firmware/cis/PE520.cis.ihex
+++ /dev/null
@@ -1,9 +0,0 @@
-:1000000001030000FF152304014B544900504535FE
-:10001000323020504C55530050434D434941204508
-:10002000746865726E65740000FF20046101100041
-:10003000210206001A050101D00F0B1B09C101198D
-:0A00400001556530FFFF1400FF00BA
-:00000001FF
-#
-# Replacement CIS for PE520 ethernet card
-#
diff --git a/firmware/cis/RS-COM-2P.cis.ihex b/firmware/cis/RS-COM-2P.cis.ihex
deleted file mode 100644
index 0801ca5da80a..000000000000
--- a/firmware/cis/RS-COM-2P.cis.ihex
+++ /dev/null
@@ -1,10 +0,0 @@
-:1000000001030000FF1516040150434D4349410010
-:1000100052532D434F4D203250000000FF21020269
-:10002000011A0501030001011B0EC18118AA61E834
-:100030000307E8020730B89E1B0B820108AA615033
-:1000400002075802071B0B830108AA6160020768B8
-:0600500002071400FF008E
-:00000001FF
-#
-# Replacement CIS for dual-serial-port IO card
-#
diff --git a/firmware/cis/SW_555_SER.cis.ihex b/firmware/cis/SW_555_SER.cis.ihex
deleted file mode 100644
index 9b9348acee7b..000000000000
--- a/firmware/cis/SW_555_SER.cis.ihex
+++ /dev/null
@@ -1,12 +0,0 @@
-:100000000101FF17034100FF20043F0110072102F7
-:100010000200152A070053696572726120576972E0
-:10002000656C657373004169724361726420353594
-:1000300035004135353500526576203100FF1A050F
-:1000400001030007731B0BE00118A360F8030730DE
-:10005000BC3F1B08A10108A360F802071B08A2010E
-:1000600008A360E803071B08A30108A360E80207D0
-:0A0070001B04A40108231400FF0084
-:00000001FF
-#
-# Replacement CIS for AC555 provided by Sierra Wireless
-#
diff --git a/firmware/cis/SW_7xx_SER.cis.ihex b/firmware/cis/SW_7xx_SER.cis.ihex
deleted file mode 100644
index 11e44ad86437..000000000000
--- a/firmware/cis/SW_7xx_SER.cis.ihex
+++ /dev/null
@@ -1,13 +0,0 @@
-:100000000101FF17034100FF2004920110072102A4
-:1000100002001537070053696572726120576972D3
-:10002000656C6573730041433731302F4143373579
-:10003000300047505253204E6574776F726B2041E9
-:1000400064617074657200523100FF1A050103008B
-:1000500007731B10E00119784D555D25A360F80367
-:100060000730BC861B08A10108A360F802071B0823
-:10007000A20108A360E803071B08A30108A360E826
-:0C00800002071B04A40108231400FF0069
-:00000001FF
-#
-# Replacement CIS for AC7xx provided by Sierra Wireless
-#
diff --git a/firmware/cis/SW_8xx_SER.cis.ihex b/firmware/cis/SW_8xx_SER.cis.ihex
deleted file mode 100644
index bbcfe6348328..000000000000
--- a/firmware/cis/SW_8xx_SER.cis.ihex
+++ /dev/null
@@ -1,13 +0,0 @@
-:100000000101FF17034100FF2004920110072102A4
-:100010000200152F070053696572726120576972DB
-:10002000656C657373004143383530003347204EAB
-:100030006574776F726B20416461707465720052F1
-:100040003100FF1A0501030007731B10E001197846
-:100050004D555D25A360F8480730BC861B08A101FB
-:1000600008A360F847071B08A20108A360E8480737
-:100070001B08A30108A360E847071B04A401082389
-:040080001400FF0069
-:00000001FF
-#
-# Replacement CIS for AC8xx provided by Sierra Wireless
-#
diff --git a/firmware/cis/tamarack.cis.ihex b/firmware/cis/tamarack.cis.ihex
deleted file mode 100644
index 1e86547fb361..000000000000
--- a/firmware/cis/tamarack.cis.ihex
+++ /dev/null
@@ -1,10 +0,0 @@
-:100000000103D400FF17034100FF152404015441EC
-:100010004D415241434B0045746865726E657400F2
-:10002000410030303437343331313830303100FF33
-:10003000210206001A050120F803031B14E08119B0
-:100040003F554D5D06864626E551000F100F30FFE7
-:05005000FF1400FF0099
-:00000001FF
-#
-# Replacement CIS for Surecom, Tamarack NE2000 cards
-#
diff --git a/firmware/cpia2/stv0672_vp4.bin.ihex b/firmware/cpia2/stv0672_vp4.bin.ihex
deleted file mode 100644
index bd0b9cf65640..000000000000
--- a/firmware/cpia2/stv0672_vp4.bin.ihex
+++ /dev/null
@@ -1,73 +0,0 @@
-:1000000001BCE302E303E304E305E306E3079344EF
-:1000100056D4934E5651934E51D6934E4F54934EC1
-:10002000924F92A4930592F4931B929291E692368A
-:100030009274924A928C928EC8D00B4202A0CA92BD
-:100040000902C9100A0A0A81E3B8E3B0E3A8E3A0F1
-:10005000E398E390E100CFD70A12CC9508B20A18D2
-:10006000E10001EE0C084A12C818F09AC022F31CF5
-:100070004A13F314C8A0F214F21CEB13D3A26316B4
-:10008000489EF018A403F393C058F713519CE9203D
-:10009000CFEF63F9922ED35F63FA922ED36763FB9F
-:1000A000922ED36FE91A631648A7F020A406F394A2
-:1000B000C027F714F513519DF6136318C420CBEF36
-:1000C00063FC922ED37763FD922ED37F63FE922E34
-:1000D000D38763FF922ED38F6438922ED3976439DF
-:1000E000922ED39FE100F53AF43BF7BFF2BCF23D0C
-:1000F000E1008087908051D5022202324BD3F71164
-:100100000BDAE1000E0202400DB5E3024855E5129C
-:10011000A401E81BE390F018A401E8BF8DB84BD10F
-:100120004BD80BCB0BC2E100E302E30352D360597F
-:10013000E6930D2252D4E6930D2AE398E390E10072
-:10014000025D0263E302C81202CAC85202C2826898
-:10015000E302C81402CAC89002C20AD0C9930ADADC
-:10016000CCD20AE2631202DA0A980AA00AA8E39043
-:10017000E100E3020AD0C9930ADACCD20AE26312A0
-:1001800002DA0A980AA00AA84991E56AA404C812EA
-:1001900002CAC8528289C81402CAC89002C2E39037
-:1001A000E1000860E1004853E897085AE100E302E3
-:1001B000E30354D36059E6930D52E398E390E100D2
-:1001C000029CE3025513931755139317E390E10034
-:1001D0007530E302E30355556059E6930DB2E39899
-:1001E000E390E10002AEE792E918EA9AE898E81095
-:1001F000E811E851D2DAD2F3E813D2FAE850D2EAA1
-:10020000E8D0E8D1D30A03094823E52CA003482409
-:10021000EA1C0308D2E3D303D313E10002CB059316
-:100220005793F09AAC0BE30792EAE29FE506E3B03E
-:10023000A002EB1E82D7EA1EE23B859BE91EC89016
-:10024000859402DE05805793F0BAAC0692EAE2BFCD
-:10025000E506A001EBBF8588E93EC8908581E93EAF
-:10026000F0BAF339F03A6017F03AC090F0BAE10012
-:10027000003FE302E30358106059E6930DA25812C1
-:10028000E6930DAAE398E390E1000301E100030384
-:100290009B7D8B8BE302E30358566059E6930DBABE
-:1002A000E398E390E100030F9311E100E3024A11A8
-:1002B0000B4291AFE390E100F291F091A3FEE100D7
-:1002C0006092C05FF013F013595BE213F0115A19FA
-:1002D000E213E10000000327686176616E610006A9
-:1002E000032CE302E303E9385915595AF29ABC0B7F
-:1002F000A40A591EF311F01AE2BB5915F011192A7C
-:10030000E502A401EBBFE398E390E1000342192862
-:10031000E100E9306079E100E303E3076079934E9F
-:10032000E3B8E398E100E91AF01FE233F091E292BA
-:08033000E032F031E1000000B1
-:00000001FF
-
-  Copyright 2001, STMicrolectronics, Inc.
-  Contact:  steve.miller@st.com
-
-  Description:
-     This file contains patch data for the CPiA2 (stv0672) VP4.
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License
-  along with this program; if not, write to the Free Software
-  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
diff --git a/firmware/cxgb3/ael2005_opt_edc.bin.ihex b/firmware/cxgb3/ael2005_opt_edc.bin.ihex
deleted file mode 100644
index c1d6e5d3bea7..000000000000
--- a/firmware/cxgb3/ael2005_opt_edc.bin.ihex
+++ /dev/null
@@ -1,69 +0,0 @@
-:10000000CC002FF4CC013CD4CC022015CC0331051C
-:10001000CC046524CC0527FFCC06300FCC072C8BF5
-:10002000CC08300BCC094009CC0A400ECC0B2F7207
-:10003000CC0C3002CC0D1002CC0E2172CC0F301241
-:10004000CC101002CC1125D2CC123012CC131002DD
-:10005000CC14D01ECC1527D2CC163012CC171002DF
-:10006000CC182004CC193C84CC1A6436CC1B200755
-:10007000CC1C3F87CC1D8676CC1E40B7CC1FA74634
-:10008000CC204047CC215673CC222982CC2330028D
-:10009000CC2413D2CC258BBDCC262862CC273012A1
-:1000A000CC281002CC292092CC2A3012CC2B100262
-:1000B000CC2C5CC3CC2D0314CC2E2942CC2F300287
-:1000C000CC301002CC31D019CC322032CC333012AB
-:1000D000CC341002CC352A04CC363C74CC37643591
-:1000E000CC382FA4CC393CD4CC3A6624CC3B5563D5
-:1000F000CC3C2D42CC3D3002CC3E13D2CC3F464DC1
-:10010000CC402862CC413012CC421002CC43203289
-:10011000CC443012CC451002CC462FB4CC473CD452
-:10012000CC486624CC495563CC4A2D42CC4B300296
-:10013000CC4C13D2CC4D2ED2CC4E3002CC4F100230
-:10014000CC502FD2CC513002CC521002CC530004F0
-:10015000CC542942CC553002CC561002CC572092B8
-:10016000CC583012CC591002CC5A5CC3CC5B03176C
-:10017000CC5C2F72CC5D3002CC5E1002CC5F294289
-:10018000CC603002CC611002CC6222CDCC63301D39
-:10019000CC642862CC653012CC661002CC672ED2BB
-:1001A000CC683002CC691002CC6A2D72CC6B300264
-:1001B000CC6C1002CC6D628FCC6E2112CC6F3012E1
-:1001C000CC701002CC715AA3CC722DC2CC73300209
-:1001D000CC741312CC756F72CC761002CC772807D2
-:1001E000CC7831A7CC7920C4CC7A3C24CC7B672452
-:1001F000CC7C1002CC7D2807CC7E3187CC7F20C4FC
-:10020000CC803C24CC816724CC821002CC83251482
-:10021000CC843C64CC856436CC86DFF4CC876436F1
-:10022000CC881002CC8940A4CC8A643CCC8B40168C
-:10023000CC8C8C6CCC8D2B24CC8E3C24CC8F643518
-:10024000CC901002CC912B24CC923C24CC93643AD9
-:10025000CC944025CC958A5ACC961002CC97273165
-:10026000CC983011CC991001CC9AC7A0CC9B01003E
-:10027000CC9CC502CC9D53ACCC9EC503CC9FD5D5A0
-:10028000CCA0C600CCA12A6DCCA2C601CCA32A4C1E
-:10029000CCA4C602CCA50111CCA6C60CCCA7590093
-:1002A000CCA8C710CCA90700CCAAC718CCAB0700B4
-:1002B000CCACC720CCAD4700CCAEC801CCAF7F5092
-:1002C000CCB0C802CCB17760CCB2C803CCB37FCE7F
-:1002D000CCB4C804CCB55700CCB6C805CCB75F11B8
-:1002E000CCB8C806CCB94751CCBAC807CCBB57E18B
-:1002F000CCBCC808CCBD2700CCBEC809CCBF000010
-:10030000CCC0C821CCC10002CCC2C822CCC30014CE
-:10031000CCC4C832CCC51186CCC6C847CCC71E02D7
-:10032000CCC8C013CCC9F341CCCAC01ACCCB04464C
-:10033000CCCCC024CCCD1000CCCEC025CCCF0A0074
-:10034000CCD0C026CCD10C0CCCD2C027CCD30C0C3A
-:10035000CCD4C029CCD500A0CCD6C030CCD70A0094
-:10036000CCD8C03CCCD9001CCCDAC005CCDB7A069A
-:10037000CCDC0000CCDD2731CCDE3011CCDF10012D
-:10038000CCE0C620CCE10000CCE2C621CCE3003FAB
-:10039000CCE4C622CCE50000CCE6C623CCE70000C6
-:1003A000CCE8C624CCE90000CCEAC625CCEB0000A2
-:1003B000CCECC627CCED0000CCEEC628CCEF00007C
-:1003C000CCF0C62CCCF10000CCF20000CCF3280617
-:1003D000CCF43CB6CCF5C161CCF66134CCF76135D8
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diff --git a/firmware/cxgb3/ael2005_twx_edc.bin.ihex b/firmware/cxgb3/ael2005_twx_edc.bin.ihex
deleted file mode 100644
index 9b5e9e51fcb7..000000000000
--- a/firmware/cxgb3/ael2005_twx_edc.bin.ihex
+++ /dev/null
@@ -1,93 +0,0 @@
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diff --git a/firmware/cxgb3/ael2020_twx_edc.bin.ihex b/firmware/cxgb3/ael2020_twx_edc.bin.ihex
deleted file mode 100644
index 8b1337f4c329..000000000000
--- a/firmware/cxgb3/ael2020_twx_edc.bin.ihex
+++ /dev/null
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deleted file mode 100644
index 140893005171..000000000000
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diff --git a/firmware/cxgb3/t3c_psram-1.1.0.bin.ihex b/firmware/cxgb3/t3c_psram-1.1.0.bin.ihex
deleted file mode 100644
index c6504803852f..000000000000
--- a/firmware/cxgb3/t3c_psram-1.1.0.bin.ihex
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diff --git a/firmware/dsp56k/bootstrap.asm b/firmware/dsp56k/bootstrap.asm
deleted file mode 100644
index a411047e6db3..000000000000
--- a/firmware/dsp56k/bootstrap.asm
+++ /dev/null
@@ -1,98 +0,0 @@
-; Author: Frederik Noring <noring@nocrew.org>
-;
-; This file is subject to the terms and conditions of the GNU General Public
-; License.  See the file COPYING in the main directory of this archive
-; for more details.
-
-; DSP56k loader
-
-; Host Interface
-M_BCR   EQU     $FFFE           ; Port A Bus Control Register
-M_PBC   EQU     $FFE0           ; Port B Control Register
-M_PBDDR EQU     $FFE2           ; Port B Data Direction Register
-M_PBD   EQU     $FFE4           ; Port B Data Register
-M_PCC   EQU     $FFE1           ; Port C Control Register
-M_PCDDR EQU     $FFE3           ; Port C Data Direction Register
-M_PCD   EQU     $FFE5           ; Port C Data Register
-
-M_HCR   EQU     $FFE8           ; Host Control Register
-M_HSR   EQU     $FFE9           ; Host Status Register
-M_HRX   EQU     $FFEB           ; Host Receive Data Register
-M_HTX   EQU     $FFEB           ; Host Transmit Data Register
-
-; SSI, Synchronous Serial Interface
-M_RX    EQU     $FFEF           ; Serial Receive Data Register
-M_TX    EQU     $FFEF           ; Serial Transmit Data Register
-M_CRA   EQU     $FFEC           ; SSI Control Register A
-M_CRB   EQU     $FFED           ; SSI Control Register B
-M_SR    EQU     $FFEE           ; SSI Status Register
-M_TSR   EQU     $FFEE           ; SSI Time Slot Register
-
-; Exception Processing
-M_IPR   EQU     $FFFF           ; Interrupt Priority Register
-
-        org     P:$0
-start   jmp     <$40
-
-        org     P:$40
-;       ; Zero 16384 DSP X and Y words
-;       clr     A #0,r0
-;       clr     B #0,r4
-;       do      #64,<_block1
-;       rep     #256
-;       move    A,X:(r0)+ B,Y:(r4)+
-;_block1        ; Zero (32768-512) Program words
-;       clr     A #512,r0
-;       do      #126,<_block2
-;       rep     #256
-;       move    A,P:(r0)+
-;_block2
-
-        ; Copy DSP program control
-        move    #real,r0
-        move    #upload,r1
-        do      #upload_end-upload,_copy
-        movem    P:(r0)+,x0
-        movem    x0,P:(r1)+
-_copy   movep   #4,X:<<M_HCR
-        movep   #$c00,X:<<M_IPR
-        and     #<$fe,mr
-        jmp     upload
-
-real
-        org     P:$7ea9
-upload
-        movep   #1,X:<<M_PBC
-        movep   #0,X:<<M_BCR
-
-next    jclr    #0,X:<<M_HSR,*
-        movep   X:<<M_HRX,A
-        move    #>3,x0
-        cmp     x0,A #>1,x0
-        jeq     <$0
-_get_address
-        jclr    #0,X:<<M_HSR,_get_address
-        movep   X:<<M_HRX,r0
-_get_length
-        jclr    #0,X:<<M_HSR,_get_length
-        movep   X:<<M_HRX,y0
-        cmp     x0,A #>2,x0
-        jeq     load_X
-        cmp     x0,A
-        jeq     load_Y
-
-load_P  do      y0,_load_P
-        jclr    #0,X:<<M_HSR,*
-        movep   X:<<M_HRX,P:(r0)+
-_load_P jmp     next
-load_X  do      y0,_load_X
-        jclr    #0,X:<<M_HSR,*
-        movep   X:<<M_HRX,X:(r0)+
-_load_X jmp     next
-load_Y  do      y0,_load_Y
-        jclr    #0,X:<<M_HSR,*
-        movep   X:<<M_HRX,Y:(r0)+
-_load_Y jmp     next
-
-upload_end
-        end
diff --git a/firmware/dsp56k/bootstrap.bin.ihex b/firmware/dsp56k/bootstrap.bin.ihex
deleted file mode 100644
index 233f21fe72b0..000000000000
--- a/firmware/dsp56k/bootstrap.bin.ihex
+++ /dev/null
@@ -1,26 +0,0 @@
-:100000000C004000000000000000000000000000A4
-:1000100000000000000000000000000000000000E0
-:1000200000000000000000000000000000000000D0
-:1000300000000000000000000000000000000000C0
-:1000400000000000000000000000000000000000B0
-:1000500000000000000000000000000000000000A0
-:100060000000000000000000000000000000000090
-:100070000000000000000000000000000000000080
-:100080000000000000000000000000000000000070
-:100090000000000000000000000000000000000060
-:1000A0000000000000000000000000000000000050
-:1000B0000000000000000000000000000000000040
-:1000C00060F40000004F61F400007EA9062E80005D
-:1000D000004707D88407598408F4A800000408F4EE
-:1000E000BF000C0000FEB80AF080007EA908F4A052
-:1000F00000000108F4BE0000000AA980007EAD08DF
-:100100004E2B44F40000000344F4450000010EA00F
-:10011000000AA980007EB508502B0AA980007EB88D
-:1001200008462B44F4450000020AF0AA007EC920CC
-:1001300000450AF0AA007ED006C600007EC60AA9C5
-:1001400080007EC408586B0AF080007EAD06C600B1
-:10015000007ECD0AA980007ECB0858AB0AF0800053
-:100160007EAD06C600007ED40AA980007ED2085863
-:07017000EB0AF080007EADF8
-:00000001FF
-/* DSP56001 bootstrap code */
diff --git a/firmware/e100/d101m_ucode.bin.ihex b/firmware/e100/d101m_ucode.bin.ihex
deleted file mode 100644
index 12971ed458a6..000000000000
--- a/firmware/e100/d101m_ucode.bin.ihex
+++ /dev/null
@@ -1,38 +0,0 @@
-:10000000150255003704FFFFFFFFFFFF8907A70612
-:10001000FFFFFFFFFFFF580501000C001213100047
-:1000200008000C00160238009C001000564020000A
-:10003000CC802300560038009C0010000B4C24009C
-:1000400000080000184812003804380000000000C2
-:1000500000001400550538000080300062061000D2
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-:10007000933010000080300024061000610510004D
-:1000800008040E00610810007E000C00212C2200E4
-:1000900002000C00933010007A0C380000000800B9
-:1000A000903010007A0C38000000000000000000C2
-:1000B00000000000000000009C0010002D4C2400F7
-:1000C000040001000010040037043A00104004004E
-:1000D0008A07380000000000990010007A6C2000A8
-:1000E0009C001000484C24002408130001000C0060
-:1000F00013121000750C260000100400040001000B
-:100100002608130006000C00A806220026C91300CA
-:1001100013131000A80638000000000000000000C3
-:1001200000000000000000000000000000000000CF
-:10013000000000000000000000060800101B100076
-:10014000040005002608100010121000340C3800BE
-:1001500000000000000000005B1521009900100065
-:10016000596520009C0010005945240036081300F2
-:1001700000000C00620C220001000C00131B100098
-:100180000E9C22000E0C21000E6C22000E6C210031
-:100190000EFC22000E5C21000E4C2100550538009B
-:1001A0000400010000100400678C27000008040010
-:1001B0000081010037043A002608130001000C00FA
-:1001C00059052200131310005905380000000000E3
-:1001D000000000000000000000000000000000001F
-:1001E00000000000000000000000000031081300C3
-:1001F0000B0910001348120080FF0C00AB0626000C
-:100200000010040004000100A806380000000000EF
-:0B02100000000000000000004E417ED6
-:00000001FF
-/********************************************************/
-/*  Micro code for 8086:1229 Rev 8                      */
-/********************************************************/
diff --git a/firmware/e100/d101s_ucode.bin.ihex b/firmware/e100/d101s_ucode.bin.ihex
deleted file mode 100644
index 102c7feb666e..000000000000
--- a/firmware/e100/d101s_ucode.bin.ihex
+++ /dev/null
@@ -1,38 +0,0 @@
-:10000000420255007E04FFFFFFFFFFFF1808FF06B6
-:10001000FFFFFFFFFFFFA60501000C0012131000F9
-:1000200008000C00430238009C00100056402000DD
-:10003000D0802300560038009C0010008B4F240015
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-:10007000933010000080300024061000610510004D
-:1000800008040E00610810007E000C00A12F220061
-:1000900002000C0093301000900F380000000800A0
-:1000A00090301000900F38000000000000000000A9
-:1000B00000000000000000009C001000AD4F240074
-:1000C00004000100001004007E043A001040040007
-:1000D000190838000000000099001000FD6F200092
-:1000E0009A001000FDAF20009C001000C84F2400B3
-:1000F0002408130001000C0013121000F70F260053
-:1001000000100400040001002608130006000C0083
-:100110000007220026C9130013131000000738003F
-:1001200000000000000000000000000000000000CF
-:10013000000000000000000000060800101B100076
-:10014000040005002608100010121000B60F380039
-:100150000000000000000000A91521009900100017
-:10016000A76520009A001000A7A520009C001000A1
-:10017000A74524003608130000000C00E40F2200FD
-:1001800001000C00131B10008E9F22008E0F210017
-:100190008E6F22008E6F21008EFF22008E5F210065
-:1001A0008E4F2100A3053800040001000010040058
-:1001B000E98F270000080400008101007E043A0056
-:1001C0002608130001000C00A705220013131000DD
-:1001D000A70538000000000000000000000000003B
-:1001E000000000000000000000000000000000000F
-:1001F00000000000310813000B0910001348120022
-:1002000080FF0C000307260000100400040001001A
-:0B02100000073800000000004E438093
-:00000001FF
-/********************************************************/
-/*  Micro code for 8086:1229 Rev 9                      */
-/********************************************************/
diff --git a/firmware/e100/d102e_ucode.bin.ihex b/firmware/e100/d102e_ucode.bin.ihex
deleted file mode 100644
index 9e806da854de..000000000000
--- a/firmware/e100/d102e_ucode.bin.ihex
+++ /dev/null
@@ -1,38 +0,0 @@
-:100000008F027D00F904420E850CED14E914FA14F8
-:10001000360EF70EFF1FFF1FB914E00000000000AE
-:100020000000000000000000BD14E000000000001F
-:100030000000000000000000D514E00000000000F7
-:1000400000000000000000000000000000000000B0
-:100050000000000000000000C114E00000000000EB
-:100060000000000000000000000000000000000090
-:100070000000000000000000000000000000000080
-:100080000000000000000000000000000000000070
-:100090000000000000000000C814E00000000000A4
-:1000A000000000000000000000062000EE14E00048
-:1000B000000000000000000080FF3000460E9400A9
-:1000C0000082030000201000430EE000000000004A
-:1000D000000000000000000006003000FB14E000FB
-:1000E0000000000000000000000000000000000010
-:1000F0000000000000000000000000000000000000
-:1001000000000000000000000000000000000000EF
-:100110000000000000000000416E90003C0E8000D6
-:10012000390EE00000000000FD6E9000FD0E900012
-:10013000F80EE000000000000000000000000000D9
-:1001400000000000000000000000000000000000AF
-:10015000000000000000000000000000000000009F
-:10016000000000000000000000000000000000008F
-:10017000000000000000000000000000000000007F
-:10018000000000000000000000000000000000006F
-:10019000000000000000000000000000000000005F
-:1001A000000000000000000000000000000000004F
-:1001B000000000000000000000000000000000003F
-:1001C000000000000000000000000000000000002F
-:1001D000000000000000000000000000000000001F
-:1001E000000000000000000000000000000000000F
-:1001F00000000000000000000000000000000000FF
-:1002000000000000000000000000000000000000EE
-:0B02100000000000000000002A362E55
-:00000001FF
-/********************************************************/
-/*  Micro code for the 8086:1229 Rev F/10               */
-/********************************************************/
diff --git a/firmware/edgeport/boot.H16 b/firmware/edgeport/boot.H16
deleted file mode 100644
index 4bf8e91a975a..000000000000
--- a/firmware/edgeport/boot.H16
+++ /dev/null
@@ -1,29 +0,0 @@
-:0004000000010C0002ED
-:000200000400FFFB
-:000600000002008002000373
-:0003000B0002000BE5
-:00030013000201B82F
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-:0003002300020023B5
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-:0003004B000201D0DF
-:000300530002012186
-:0003007B0002007B05
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-:0000000001FF
-//**************************************************************
-//* Edgeport/4 Binary Image
-//* Generated by HEX2C v1.06
-//* Copyright (C) 1998 Inside Out Networks, All rights reserved.
-//*	This program is free software; you can redistribute it and/or modify
-//*	it under the terms of the GNU General Public License as published by
-//*	the Free Software Foundation; either version 2 of the License, or
-//*	(at your option) any later version.
-//**************************************************************
diff --git a/firmware/edgeport/boot2.H16 b/firmware/edgeport/boot2.H16
deleted file mode 100644
index 8b14295e1f3e..000000000000
--- a/firmware/edgeport/boot2.H16
+++ /dev/null
@@ -1,28 +0,0 @@
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-:000600000002008002000373
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-:0000000001FF
-//**************************************************************
-//* Edgeport/4 Binary Image
-//* Generated by HEX2C v1.06
-//* Copyright (C) 1998 Inside Out Networks, All rights reserved.
-//*	This program is free software; you can redistribute it and/or modify
-//*	it under the terms of the GNU General Public License as published by
-//*	the Free Software Foundation; either version 2 of the License, or
-//*	(at your option) any later version.
-//**************************************************************
diff --git a/firmware/edgeport/down.H16 b/firmware/edgeport/down.H16
deleted file mode 100644
index 7e36fe1f2182..000000000000
--- a/firmware/edgeport/down.H16
+++ /dev/null
@@ -1,29 +0,0 @@
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-:0000000001FF
-//**************************************************************
-//* Edgeport/4 Binary Image
-//* Generated by HEX2C v1.06
-//* Copyright (C) 1998 Inside Out Networks, All rights reserved.
-//*	This program is free software; you can redistribute it and/or modify
-//*	it under the terms of the GNU General Public License as published by
-//*	the Free Software Foundation; either version 2 of the License, or
-//*	(at your option) any later version.
-//**************************************************************
diff --git a/firmware/edgeport/down2.H16 b/firmware/edgeport/down2.H16
deleted file mode 100644
index 2f4b4ff3ab7b..000000000000
--- a/firmware/edgeport/down2.H16
+++ /dev/null
@@ -1,29 +0,0 @@
-:000400000002000003F7
-:000200000400FFFB
-:00060000000200800245141D
-:0003000B000244A507
-:00030013000263ABDA
-:0003001B0002001BC5
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-:0003002B0002002BA5
-:000300330002003395
-:0003003B0002003B85
-:000300430002004375
-:0003004B0002004B65
-:000300530002675FE2
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-:0000000001FF
-//**************************************************************
-//* Edgeport/4 Binary Image
-//* Generated by HEX2C v1.06
-//* Copyright (C) 1998 Inside Out Networks, All rights reserved.
-//*	This program is free software; you can redistribute it and/or modify
-//*	it under the terms of the GNU General Public License as published by
-//*	the Free Software Foundation; either version 2 of the License, or
-//*	(at your option) any later version.
-//**************************************************************
diff --git a/firmware/edgeport/down3.bin.ihex b/firmware/edgeport/down3.bin.ihex
deleted file mode 100644
index 7935e520878a..000000000000
--- a/firmware/edgeport/down3.bin.ihex
+++ /dev/null
@@ -1,815 +0,0 @@
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-//**************************************************************
-//* Edgeport Binary Image (for TI based products)
-//* Generated by TIBin2C v2.00 (watchport)
-//* Copyright (C) 2001 Inside Out Networks, All rights reserved.
-//**************************************************************
diff --git a/firmware/emi26/bitstream.HEX b/firmware/emi26/bitstream.HEX
deleted file mode 100644
index 044d3f664385..000000000000
--- a/firmware/emi26/bitstream.HEX
+++ /dev/null
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-/*
- * This firmware is for the Emagic EMI 2|6 Audio Interface
- *
- * The firmware contained herein is Copyright (c) 1999-2002 Emagic
- * as an unpublished work. This notice does not imply unrestricted
- * or public access to this firmware which is a trade secret of Emagic,
- * and which may not be reproduced, used, sold or transferred to
- * any third party without Emagic's written consent. All Rights Reserved.
- *
- * Permission is hereby granted for the distribution of this firmware
- * image as part of a Linux or other Open Source operating system kernel
- * in text or binary form as required.
- *
- * This firmware may not be modified and may only be used with the
- * Emagic EMI 2|6 Audio Interface. Distribution and/or Modification of
- * any driver which includes this firmware, in whole or in part,
- * requires the inclusion of this statement.
- *
-/// VERSION=1.1.1.131
-// DATE=2001dec06
-// PRODUCT=EMI 2|6
diff --git a/firmware/emi26/firmware.HEX b/firmware/emi26/firmware.HEX
deleted file mode 100644
index 1ca400eb1413..000000000000
--- a/firmware/emi26/firmware.HEX
+++ /dev/null
@@ -1,1261 +0,0 @@
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-:00000001FF
-/*
- * This firmware is for the Emagic EMI 2|6 Audio Interface
- *
- * The firmware contained herein is Copyright (c) 1999-2002 Emagic
- * as an unpublished work. This notice does not imply unrestricted
- * or public access to this firmware which is a trade secret of Emagic,
- * and which may not be reproduced, used, sold or transferred to
- * any third party without Emagic's written consent. All Rights Reserved.
- *
- * This firmware may not be modified and may only be used with the
- * Emagic EMI 2|6 Audio Interface. Distribution and/or Modification of
- * any driver which includes this firmware, in whole or in part,
- * requires the inclusion of this statement.
- */
-/*
-VERSION=1.0.2.916
-DATE=12.02.2002
-*/
diff --git a/firmware/emi26/loader.HEX b/firmware/emi26/loader.HEX
deleted file mode 100644
index 77c439f6565b..000000000000
--- a/firmware/emi26/loader.HEX
+++ /dev/null
@@ -1,116 +0,0 @@
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-:0211D00000001D
-:00000001FF
-/*
- * This firmware is for the Emagic EMI 2|6 Audio Interface
- *
- * The firmware contained herein is Copyright (c) 1999-2002 Emagic
- * as an unpublished work. This notice does not imply unrestricted
- * or public access to this firmware which is a trade secret of Emagic,
- * and which may not be reproduced, used, sold or transferred to
- * any third party without Emagic's written consent. All Rights Reserved.
- *
- * This firmware may not be modified and may only be used with the
- * Emagic EMI 2|6 Audio Interface. Distribution and/or Modification of
- * any driver which includes this firmware, in whole or in part,
- * requires the inclusion of this statement.
- */
diff --git a/firmware/emi62/bitstream.HEX b/firmware/emi62/bitstream.HEX
deleted file mode 100644
index a0f4f570f076..000000000000
--- a/firmware/emi62/bitstream.HEX
+++ /dev/null
@@ -1,6107 +0,0 @@
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-// DATE= 2002oct28
diff --git a/firmware/emi62/loader.HEX b/firmware/emi62/loader.HEX
deleted file mode 100644
index 0edb2dc310eb..000000000000
--- a/firmware/emi62/loader.HEX
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-/*
-Source: EMILOAD.HEX
-VERSION=1.0.2.002
-DATE=10.01.2002
-EMI26_62
-*/
diff --git a/firmware/emi62/midi.HEX b/firmware/emi62/midi.HEX
deleted file mode 100644
index 32a0d65176ba..000000000000
--- a/firmware/emi62/midi.HEX
+++ /dev/null
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-/*
-Source: EMI62MFW.HEX
-VERSION=1.04.062
-DATE=16.10.2002
-*/
diff --git a/firmware/emi62/spdif.HEX b/firmware/emi62/spdif.HEX
deleted file mode 100644
index 322d50c9cf4d..000000000000
--- a/firmware/emi62/spdif.HEX
+++ /dev/null
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-/*
-Source: EMI62SFW.HEX
-VERSION=1.04.062
-DATE=16.10.2002
-*/
diff --git a/firmware/ess/maestro3_assp_kernel.fw.ihex b/firmware/ess/maestro3_assp_kernel.fw.ihex
deleted file mode 100644
index 933c4c375c2f..000000000000
--- a/firmware/ess/maestro3_assp_kernel.fw.ihex
+++ /dev/null
@@ -1,120 +0,0 @@
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-:100460008A0301BF43BE776988E34E0261AE4D1037
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-:10052000B0BF000C88E3B602A0BF000888E3B202A7
-:100530001269B0BF000CA0BF000488E3A3020969E0
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-:100560008079ED0209690B908079B8020BAF0540E4
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-:100580001269B0BF000C88E3E702A0BF000888E34F
-:10059000E3021269B0BF000CA0BF000488E3D402DC
-:1005A0000D6910908079D60210AF05400169059061
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-:1005C00011908079ED020D6910908079E90210AFE9
-:1005D000054005AF034006AF044020BC7069719030
-:1005E000807A7800716970908079A10320BC6103E2
-:1005F0008B8B806988EF7202720304787190710DA1
-:100600008A8B0B0003B90988C6BE0903A869AB90A1
-:10061000A869AA9010080A6644E30F0309001008AD
-:100620000C6688E314030B8020BC616901B86190FB
-:100630008079F702807A8A03355D0100346901B858
-:1006400034900ABF9E108A8B80AF1480804872AEAF
-:10065000500500F572AE100561AE5110807AF602B9
-:100660008079A103807A8A03355D02005E6901B852
-:100670005E900ABF9E108A8B80AF1480804772AE56
-:10068000580500F572AE180561AE5C10807AF6026E
-:100690008079A1031C00888B806988EF1D901D0D57
-:1006A0000F1010668CE358030E6910660F620D661A
-:1006B0000FBA01E37A0310048A8B03B90988C6BE16
-:1006C0006C038C6AAA61AB988C6AAB61AD988C6A3A
-:1006D000AD61A9988C6AA961AA98047C8B8B047C73
-:1006E0008D8B047C898B047C14080E6608E37903E7
-:1006F0000D04108421BC1C6901B81C9080794A0348
-:1007000003B909888A8BC6BE8803AC5403BE8C61CA
-:10071000AA9800EF20BC46BE09086B900A086C90AE
-:100720000B086D901A0862901B0863901E08649075
-:1007300059BE1E88658066816782688369846A8580
-:1007400000EF20BC6B6909886C690A886D690B88A9
-:1007500062691A8863691B8864691E88650066017E
-:0A0760006702680369046A053ABEE7
-:00000001FF
diff --git a/firmware/ess/maestro3_assp_minisrc.fw.ihex b/firmware/ess/maestro3_assp_minisrc.fw.ihex
deleted file mode 100644
index d2c0031dadf2..000000000000
--- a/firmware/ess/maestro3_assp_minisrc.fw.ihex
+++ /dev/null
@@ -1,51 +0,0 @@
-:1000000080BF1E106E906E00888B806988EF6F90A5
-:100010006F0D006908EB120420BC6E6901B86E9088
-:10002000807903040EB9078843BE01BF47BE41BEB5
-:10003000807A2A0040BE2930CCEF41BE807A280069
-:1000400040BE2830CCEF076908E32A0409692C90E8
-:1000500080792C040D692C9009101A880A1001BAB5
-:100060001B880D101C880E1001BA1D8880BFED0082
-:100070001E880C05240104B92790186908E3B3040D
-:100080002D901369A0BF987504F72DAEFF008D8BDE
-:10009000196908E363041A6908E3560407B9098873
-:1000A000C6BE5304A910AD9080797C0403B90988B9
-:1000B000C6BE60048918226CAD90A910236E226C14
-:1000C000AD9080797C041A1008E36F0403B90988A5
-:1000D000C6BE6C04A910A090AD9080797C0401B9D3
-:1000E0000988C6BE7B048918226CA090AD90A91027
-:1000F000236E226CA090AD902D6908E39C0424012E
-:1001000003B702B91888898B2C028A10047CA0904E
-:100110002B691F88807E5B052A690988898BA099D5
-:100120008A10A0902B691F88807E5B052A69098848
-:10013000898BAF99997B840424010F061B1013202F
-:100140001B90A0BFFF7F44E3AC041B90898B807A97
-:100150001A05276901BA2790807A2305276908E3E1
-:100160009E0480790F052406261013202690A0BF38
-:10017000FF7F04E3C0048D8B807A1A058079B40474
-:100180002690131026301B908D8B807A1A05807A6A
-:100190002305271001BA279008E3B40424010F06B1
-:1001A000898B1A6908E3EA04196988E3E00403B952
-:1001B0000988C6BEDD04A01FAE2FA99880790F055F
-:1001C00001B9188807B90988C6BEE704EE10A990DE
-:1001D00080790F05196908E3FE0403B9098846BE52
-:1001E000C6BEFA04A0171EBEAE1FBFBF00FF13BEDF
-:1001F000DFBF8080A99947BE80790F0501B90988C2
-:10020000C6BE0E05A016A026B7BF00FF1EBEA01ECC
-:10021000AE2EBFBF00FF13BEDFBF8080A9990C8543
-:100220000F86076988E31605070D108559BE1E88DD
-:100230004ABE00EF1E101C901F101D90A0101E90B3
-:10024000A0101F9000EF1E101C3020901B73205434
-:1002500003BE259825101C2025902573145403BE39
-:100260008E8B80982F6988E3390559BE07BB806162
-:100270008098A08B1F101D3021901B73215403BE4A
-:100280002E982E101D202E902E73155403BE80988C
-:100290002F6988E34F0559BE07BB80618098A08B0A
-:1002A000186908EF2573165403BEA0982E731754CF
-:1002B00003BEA09800EFA08BC6BE6B0559BE04BB61
-:1002C00090AA04BE1EBEE099E08BA069D090A06900
-:1002D000D0901F0805B81F88908BA069D090A069A6
-:1002E0009090D08BD88B1FBE00EF00000000000064
-:1002F00000000000000000000000000000000000FE
-:1003000000000000000000000000000000000000ED
-:020310000000EB
-:00000001FF
diff --git a/firmware/ihex2fw.c b/firmware/ihex2fw.c
deleted file mode 100644
index 08d90e25abf0..000000000000
--- a/firmware/ihex2fw.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Parser/loader for IHEX formatted data.
- *
- * Copyright © 2008 David Woodhouse <dwmw2@infradead.org>
- * Copyright © 2005 Jan Harkes <jaharkes@cs.cmu.edu>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <stdint.h>
-#include <arpa/inet.h>
-#include <stdio.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/mman.h>
-#include <fcntl.h>
-#include <string.h>
-#include <unistd.h>
-#include <stdlib.h>
-#define _GNU_SOURCE
-#include <getopt.h>
-
-
-struct ihex_binrec {
-	struct ihex_binrec *next; /* not part of the real data structure */
-        uint32_t addr;
-        uint16_t len;
-        uint8_t data[];
-};
-
-/**
- * nybble/hex are little helpers to parse hexadecimal numbers to a byte value
- **/
-static uint8_t nybble(const uint8_t n)
-{
-       if      (n >= '0' && n <= '9') return n - '0';
-       else if (n >= 'A' && n <= 'F') return n - ('A' - 10);
-       else if (n >= 'a' && n <= 'f') return n - ('a' - 10);
-       return 0;
-}
-
-static uint8_t hex(const uint8_t *data, uint8_t *crc)
-{
-       uint8_t val = (nybble(data[0]) << 4) | nybble(data[1]);
-       *crc += val;
-       return val;
-}
-
-static int process_ihex(uint8_t *data, ssize_t size);
-static void file_record(struct ihex_binrec *record);
-static int output_records(int outfd);
-
-static int sort_records = 0;
-static int wide_records = 0;
-static int include_jump = 0;
-
-static int usage(void)
-{
-	fprintf(stderr, "ihex2fw: Convert ihex files into binary "
-		"representation for use by Linux kernel\n");
-	fprintf(stderr, "usage: ihex2fw [<options>] <src.HEX> <dst.fw>\n");
-	fprintf(stderr, "       -w: wide records (16-bit length)\n");
-	fprintf(stderr, "       -s: sort records by address\n");
-	fprintf(stderr, "       -j: include records for CS:IP/EIP address\n");
-	return 1;
-}
-
-int main(int argc, char **argv)
-{
-	int infd, outfd;
-	struct stat st;
-	uint8_t *data;
-	int opt;
-
-	while ((opt = getopt(argc, argv, "wsj")) != -1) {
-		switch (opt) {
-		case 'w':
-			wide_records = 1;
-			break;
-		case 's':
-			sort_records = 1;
-			break;
-		case 'j':
-			include_jump = 1;
-			break;
-		default:
-			return usage();
-		}
-	}
-
-	if (optind + 2 != argc)
-		return usage();
-
-	if (!strcmp(argv[optind], "-"))
-	    infd = 0;
-	else
-		infd = open(argv[optind], O_RDONLY);
-	if (infd == -1) {
-		fprintf(stderr, "Failed to open source file: %s",
-			strerror(errno));
-		return usage();
-	}
-	if (fstat(infd, &st)) {
-		perror("stat");
-		return 1;
-	}
-	data = mmap(NULL, st.st_size, PROT_READ, MAP_SHARED, infd, 0);
-	if (data == MAP_FAILED) {
-		perror("mmap");
-		return 1;
-	}
-
-	if (!strcmp(argv[optind+1], "-"))
-	    outfd = 1;
-	else
-		outfd = open(argv[optind+1], O_TRUNC|O_CREAT|O_WRONLY, 0644);
-	if (outfd == -1) {
-		fprintf(stderr, "Failed to open destination file: %s",
-			strerror(errno));
-		return usage();
-	}
-	if (process_ihex(data, st.st_size))
-		return 1;
-
-	return output_records(outfd);
-}
-
-static int process_ihex(uint8_t *data, ssize_t size)
-{
-	struct ihex_binrec *record;
-	uint32_t offset = 0;
-	uint32_t data32;
-	uint8_t type, crc = 0, crcbyte = 0;
-	int i, j;
-	int line = 1;
-	int len;
-
-	i = 0;
-next_record:
-	/* search for the start of record character */
-	while (i < size) {
-		if (data[i] == '\n') line++;
-		if (data[i++] == ':') break;
-	}
-
-	/* Minimum record length would be about 10 characters */
-	if (i + 10 > size) {
-		fprintf(stderr, "Can't find valid record at line %d\n", line);
-		return -EINVAL;
-	}
-
-	len = hex(data + i, &crc); i += 2;
-	if (wide_records) {
-		len <<= 8;
-		len += hex(data + i, &crc); i += 2;
-	}
-	record = malloc((sizeof (*record) + len + 3) & ~3);
-	if (!record) {
-		fprintf(stderr, "out of memory for records\n");
-		return -ENOMEM;
-	}
-	memset(record, 0, (sizeof(*record) + len + 3) & ~3);
-	record->len = len;
-
-	/* now check if we have enough data to read everything */
-	if (i + 8 + (record->len * 2) > size) {
-		fprintf(stderr, "Not enough data to read complete record at line %d\n",
-			line);
-		return -EINVAL;
-	}
-
-	record->addr  = hex(data + i, &crc) << 8; i += 2;
-	record->addr |= hex(data + i, &crc); i += 2;
-	type = hex(data + i, &crc); i += 2;
-
-	for (j = 0; j < record->len; j++, i += 2)
-		record->data[j] = hex(data + i, &crc);
-
-	/* check CRC */
-	crcbyte = hex(data + i, &crc); i += 2;
-	if (crc != 0) {
-		fprintf(stderr, "CRC failure at line %d: got 0x%X, expected 0x%X\n",
-			line, crcbyte, (unsigned char)(crcbyte-crc));
-		return -EINVAL;
-	}
-
-	/* Done reading the record */
-	switch (type) {
-	case 0:
-		/* old style EOF record? */
-		if (!record->len)
-			break;
-
-		record->addr += offset;
-		file_record(record);
-		goto next_record;
-
-	case 1: /* End-Of-File Record */
-		if (record->addr || record->len) {
-			fprintf(stderr, "Bad EOF record (type 01) format at line %d",
-				line);
-			return -EINVAL;
-		}
-		break;
-
-	case 2: /* Extended Segment Address Record (HEX86) */
-	case 4: /* Extended Linear Address Record (HEX386) */
-		if (record->addr || record->len != 2) {
-			fprintf(stderr, "Bad HEX86/HEX386 record (type %02X) at line %d\n",
-				type, line);
-			return -EINVAL;
-		}
-
-		/* We shouldn't really be using the offset for HEX86 because
-		 * the wraparound case is specified quite differently. */
-		offset = record->data[0] << 8 | record->data[1];
-		offset <<= (type == 2 ? 4 : 16);
-		goto next_record;
-
-	case 3: /* Start Segment Address Record */
-	case 5: /* Start Linear Address Record */
-		if (record->addr || record->len != 4) {
-			fprintf(stderr, "Bad Start Address record (type %02X) at line %d\n",
-				type, line);
-			return -EINVAL;
-		}
-
-		memcpy(&data32, &record->data[0], sizeof(data32));
-		data32 = htonl(data32);
-		memcpy(&record->data[0], &data32, sizeof(data32));
-
-		/* These records contain the CS/IP or EIP where execution
-		 * starts. If requested output this as a record. */
-		if (include_jump)
-			file_record(record);
-		goto next_record;
-
-	default:
-		fprintf(stderr, "Unknown record (type %02X)\n", type);
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static struct ihex_binrec *records;
-
-static void file_record(struct ihex_binrec *record)
-{
-	struct ihex_binrec **p = &records;
-
-	while ((*p) && (!sort_records || (*p)->addr < record->addr))
-		p = &((*p)->next);
-
-	record->next = *p;
-	*p = record;
-}
-
-static int output_records(int outfd)
-{
-	unsigned char zeroes[6] = {0, 0, 0, 0, 0, 0};
-	struct ihex_binrec *p = records;
-
-	while (p) {
-		uint16_t writelen = (p->len + 9) & ~3;
-
-		p->addr = htonl(p->addr);
-		p->len = htons(p->len);
-		if (write(outfd, &p->addr, writelen) != writelen)
-			return 1;
-		p = p->next;
-	}
-	/* EOF record is zero length, since we don't bother to represent
-	   the type field in the binary version */
-	if (write(outfd, zeroes, 6) != 6)
-		return 1;
-	return 0;
-}
diff --git a/firmware/kaweth/new_code.bin.ihex b/firmware/kaweth/new_code.bin.ihex
deleted file mode 100644
index 292d40f4f334..000000000000
--- a/firmware/kaweth/new_code.bin.ihex
+++ /dev/null
@@ -1,206 +0,0 @@
-:10000000B6C3AABBCCDD9FCFDE06E7570000C4060F
-:1000100097C1E767FF1F28C0E787000424C0E76790
-:10002000FFF922C097CFD70900C0E709A2C0BE06DA
-:100030009FAF3600E70500C0A7CFBC0697CFE757B4
-:100040000000B806A7A1B80697CFE757000014082C
-:100050000AC0E7570000A4C0A7C07A069FAF920766
-:10006000E70700001408E757FFFFBA069FA0380013
-:10007000E759BA06BE069FA03800C809CA0608623A
-:100080009FA13608C00976060060A7C07A069FAF18
-:10009000CC02E7570000B806A7C17A069FAF04005C
-:1000A000E75700008E060AC1E70920C01008E7D014
-:1000B0001008E767400010089FAF920CC009D006F7
-:1000C000006005C4C059BE0602C09FAFEC009FAFE0
-:1000D0003402E7570000A6069FA07A02A7CF7A064F
-:1000E0004802E709BE06D006C83704009FAF0803E0
-:1000F00097CFE7570000CE0697C0D70900C0C1DFF1
-:10010000C809C606086214C02704C6061094F00782
-:1001100010080200C107010070000400F007300160
-:10012000060050AFE707FFFFD006E7070000CE0646
-:10013000E70500C097CFD70900C0C1DF4802D0094A
-:10014000C6062702C606E70500C097CF4802C83793
-:100150000400000C0C00006021C0C0373E0023C921
-:10016000C057B4051BC8C0173F00C067C0FF3000B0
-:100170000800F007000004000002C0174C00300027
-:100180000600F007A0010A004802C1070200D709D3
-:1001900000C0C1DF51AFE70500C097CF9FAF080394
-:1001A0009FAF7A0297CF9FAF7A02C9370400C1DFB1
-:1001B000C809A20650026702A206D107000027D88C
-:1001C000AA06C0DF9FAFC40197CFE7570000D20651
-:1001D00097C1E7570100A80697C0C809A0060862A2
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deleted file mode 100644
index fb35d3d0c924..000000000000
--- a/firmware/kaweth/new_code_fix.bin.ihex
+++ /dev/null
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diff --git a/firmware/kaweth/trigger_code.bin.ihex b/firmware/kaweth/trigger_code.bin.ihex
deleted file mode 100644
index c3e1658c2803..000000000000
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diff --git a/firmware/kaweth/trigger_code_fix.bin.ihex b/firmware/kaweth/trigger_code_fix.bin.ihex
deleted file mode 100644
index 7712f73faeda..000000000000
--- a/firmware/kaweth/trigger_code_fix.bin.ihex
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diff --git a/firmware/keyspan/mpr.HEX b/firmware/keyspan/mpr.HEX
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-:3D0F860008F0301A04E04402F07FF47E01120003907FD6E054F7F0E04404F0227400F58690FDA57C05A3E582458370F922907FD6E04480F04387010000000000222C
-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
-
-static char theFirmwareDate53[] =
-	"04/26/2002  02:47p              11,570 USA53";
-
diff --git a/firmware/keyspan/usa18x.HEX b/firmware/keyspan/usa18x.HEX
deleted file mode 100644
index a9ff70eadfe7..000000000000
--- a/firmware/keyspan/usa18x.HEX
+++ /dev/null
@@ -1,141 +0,0 @@
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-:401906000040CD06120100000102000209027400010100A032090400000EFF0000000705010240000007050202400000070503024000000705040240000007050502400074
-:4019460000070506024000000705070240000007058102400001070582024000010705830240000107058402400001070585024000010705860240000107058702400001F3
-:401986000403090448034B00650079007300700061006E002C002000610020006400690076006900730069006F006E0020006F006600200049006E006E006F005300790040
-:4019C6007300200049006E0063002E0036034B00650079007300700061006E0020005500530042002000530065007200690061006C002000410064006100700074006500F9
-:141A06007200100330003000300030003000300030000000F7
-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa19.HEX b/firmware/keyspan/usa19.HEX
deleted file mode 100644
index c5d1496e8714..000000000000
--- a/firmware/keyspan/usa19.HEX
+++ /dev/null
@@ -1,101 +0,0 @@
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-:400F460022907FD6E04480F04387010000000000220000000000000000000000000012011001FF000040CD0607010100010200020902430001010080320904000007FF008A
-:400F86000000070501024000000705020240000007050302400000070581024000010705820240000107058302400001070584024000010403090410034B00650079007332
-:170FC60000700061006E000E03530065007200690061006C00000064
-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa19qi.HEX b/firmware/keyspan/usa19qi.HEX
deleted file mode 100644
index 353bfcfefb9c..000000000000
--- a/firmware/keyspan/usa19qi.HEX
+++ /dev/null
@@ -1,101 +0,0 @@
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-:090FC600E703120FA5120CB12281
-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa19qw.HEX b/firmware/keyspan/usa19qw.HEX
deleted file mode 100644
index 8a891023bf51..000000000000
--- a/firmware/keyspan/usa19qw.HEX
+++ /dev/null
@@ -1,142 +0,0 @@
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-:041A0600720000006A
-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa19w.HEX b/firmware/keyspan/usa19w.HEX
deleted file mode 100644
index a3b84313f2ca..000000000000
--- a/firmware/keyspan/usa19w.HEX
+++ /dev/null
@@ -1,141 +0,0 @@
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-:041A0600720000006A
-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa28.HEX b/firmware/keyspan/usa28.HEX
deleted file mode 100644
index 000c97863c01..000000000000
--- a/firmware/keyspan/usa28.HEX
+++ /dev/null
@@ -1,148 +0,0 @@
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-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa28x.HEX b/firmware/keyspan/usa28x.HEX
deleted file mode 100644
index 9f0f7fac7609..000000000000
--- a/firmware/keyspan/usa28x.HEX
+++ /dev/null
@@ -1,141 +0,0 @@
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-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa28xa.HEX b/firmware/keyspan/usa28xa.HEX
deleted file mode 100644
index f14932efbafb..000000000000
--- a/firmware/keyspan/usa28xa.HEX
+++ /dev/null
@@ -1,141 +0,0 @@
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-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa28xb.HEX b/firmware/keyspan/usa28xb.HEX
deleted file mode 100644
index 07cb708f1956..000000000000
--- a/firmware/keyspan/usa28xb.HEX
+++ /dev/null
@@ -1,142 +0,0 @@
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-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa49w.HEX b/firmware/keyspan/usa49w.HEX
deleted file mode 100644
index 5e5b3d13dd5f..000000000000
--- a/firmware/keyspan/usa49w.HEX
+++ /dev/null
@@ -1,145 +0,0 @@
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-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2001
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
diff --git a/firmware/keyspan/usa49wlc.HEX b/firmware/keyspan/usa49wlc.HEX
deleted file mode 100644
index 8406eb1bf373..000000000000
--- a/firmware/keyspan/usa49wlc.HEX
+++ /dev/null
@@ -1,153 +0,0 @@
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-:00000001FF
-
-	The firmware contained herein is
-
-		Copyright (C) 1999-2003
-		Keyspan, A division of InnoSys Incorporated ("Keyspan")
-
-	as an unpublished work. This notice does not imply unrestricted or
-	public access to the source code from which this firmware image is
-	derived.  Except as noted below this firmware image may not be
-	reproduced, used, sold or transferred to any third party without
-	Keyspan's prior written consent.  All Rights Reserved.
-
-	Permission is hereby granted for the distribution of this firmware
-	image as part of a Linux or other Open Source operating system kernel
-	in text or binary form as required.
-
-	This firmware may not be modified and may only be used with
-	Keyspan hardware.  Distribution and/or Modification of the
-	keyspan.c driver which includes this firmware, in whole or in
-	part, requires the inclusion of this statement."
-
-static char theFirmwareDate49[] =
-        "02/14/2002  02:37p              19,347 USA49";
-
-static char theFirmwareDate65[] =
-        "01/31/2003  09:34a              19,331 USA65";
-
diff --git a/firmware/keyspan_pda/keyspan_pda.HEX b/firmware/keyspan_pda/keyspan_pda.HEX
deleted file mode 100644
index 6fcf02bb4b2d..000000000000
--- a/firmware/keyspan_pda/keyspan_pda.HEX
+++ /dev/null
@@ -1,83 +0,0 @@
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-:10043000053400F583E0F5CBF5CDA3E0F5CAF5CCA6
-:10044000C322D322B94111EB64FF5484FB907F98FF
-:10045000E0547B4BF0020402907F9BE064FF0203B8
-:10046000DEC086C082C083C084C085C0E0E591C282
-:10047000E4F591907FA97404F01205A0D0E0D08536
-:10048000D084D083D082D08632C086C082C083C060
-:1004900084C085C0E0E591C2E4F591907FAA740420
-:1004A000F0907FC9E0F9E4F586907DC075851085F0
-:1004B0003284E005860584F0E584B53302800905C1
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-:1004E000BCE020E14B907D00E532F0A3E533F0A3C2
-:1004F000E530F0A3E531F0A3E430000104F0A305FA
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diff --git a/firmware/keyspan_pda/keyspan_pda.S b/firmware/keyspan_pda/keyspan_pda.S
deleted file mode 100644
index f3acc197a5ef..000000000000
--- a/firmware/keyspan_pda/keyspan_pda.S
+++ /dev/null
@@ -1,1124 +0,0 @@
-/*  $Id: loop.s,v 1.23 2000/03/20 09:49:06 warner Exp $
- * 
- *  Firmware for the Keyspan PDA Serial Adapter, a USB serial port based on
- *  the EzUSB microcontroller.
- * 
- *  (C) Copyright 2000 Brian Warner <warner@lothar.com>
- * 
- * 	This program is free software; you can redistribute it and/or modify
- * 	it under the terms of the GNU General Public License as published by
- * 	the Free Software Foundation; either version 2 of the License, or
- * 	(at your option) any later version.
- * 
- *  "Keyspan PDA Serial Adapter" is probably a copyright of Keyspan, the
- *  company.
- * 
- *  This serial adapter is basically an EzUSB chip and an RS-232 line driver
- *  in a little widget that has a DB-9 on one end and a USB plug on the other.
- *  It uses the EzUSB's internal UART0 (using the pins from Port C) and timer2
- *  as a baud-rate generator. The wiring is:
- *   PC0/RxD0 <- rxd (DB9 pin 2)         PC4 <- dsr pin 6
- *   PC1/TxD0 -> txd pin 3               PC5 <- ri  pin 9
- *   PC2      -> rts pin 7               PC6 <- dcd pin 1
- *   PC3      <- cts pin 8               PC7 -> dtr pin 4
- *   PB1 -> line driver standby
- *
- *  The EzUSB register constants below come from their excellent documentation
- *  and sample code (which used to be available at www.anchorchips.com, but
- *  that has now been absorbed into Cypress' site and the CD-ROM contents
- *  don't appear to be available online anymore). If we get multiple
- *  EzUSB-based drivers into the kernel, it might be useful to pull them out
- *  into a separate .h file.
- * 
- * THEORY OF OPERATION:
- *
- *   There are two 256-byte ring buffers, one for tx, one for rx.
- *
- *   EP2out is pure tx data. When it appears, the data is copied into the tx
- *   ring and serial transmission is started if it wasn't already running. The
- *   "tx buffer empty" interrupt may kick off another character if the ring
- *   still has data. If the host is tx-blocked because the ring filled up,
- *   it will request a "tx unthrottle" interrupt. If sending a serial character
- *   empties the ring below the desired threshold, we set a bit that will send
- *   up the tx unthrottle message as soon as the rx buffer becomes free.
- *
- *   EP2in (interrupt) is used to send both rx chars and rx status messages
- *   (only "tx unthrottle" at this time) back up to the host. The first byte
- *   of the rx message indicates data (0) or status msg (1). Status messages
- *   are sent before any data.
- *
- *   Incoming serial characters are put into the rx ring by the serial
- *   interrupt, and the EP2in buffer sent if it wasn't already in transit.
- *   When the EP2in buffer returns, the interrupt prompts us to send more
- *   rx chars (or status messages) if they are pending.
- *
- *   Device control happens through "vendor specific" control messages on EP0.
- *   All messages are destined for the "Interface" (with the index always 0,
- *   so that if their two-port device might someday use similar firmware, we
- *   can use index=1 to refer to the second port). The messages defined are:
- *
- *    bRequest = 0 : set baud/bits/parity
- *               1 : unused
- *               2 : reserved for setting HW flow control (CTSRTS)
- *               3 : get/set "modem info" (pin states: DTR, RTS, DCD, RI, etc)
- *               4 : set break (on/off)
- *               5 : reserved for requesting interrupts on pin state change
- *               6 : query buffer room or chars in tx buffer
- *               7 : request tx unthrottle interrupt
- *
- *  The host-side driver is set to recognize the device ID values stashed in
- *  serial EEPROM (0x06cd, 0x0103), program this firmware into place, then
- *  start it running. This firmware will use EzUSB's "renumeration" trick by
- *  simulating a bus disconnect, then reconnect with a different device ID
- *  (encoded in the desc_device descriptor below). The host driver then
- *  recognizes the new device ID and glues it to the real serial driver code.
- *
- * USEFUL DOCS:
- *  EzUSB Technical Reference Manual: <http://www.cypress.com/>
- *  8051 manuals: everywhere, but try www.dalsemi.com because the EzUSB is
- *   basically the Dallas enhanced 8051 code. Remember that the EzUSB IO ports
- *   use totally different registers!
- *  USB 1.1 spec: www.usb.org
- *
- * HOW TO BUILD:
- *  gcc -x assembler-with-cpp -P -E -o keyspan_pda.asm keyspan_pda.s
- *  as31 -l keyspan_pda.asm
- *  mv keyspan_pda.obj keyspan_pda.hex
- *  perl ezusb_convert.pl keyspan_pda < keyspan_pda.hex > keyspan_pda_fw.h
- * Get as31 from <http://www.pjrc.com/tech/8051/index.html>, and hack on it
- * a bit to make it build.
- *
- * THANKS:
- *  Greg Kroah-Hartman, for coordinating the whole usb-serial thing.
- *  AnchorChips, for making such an incredibly useful little microcontroller.
- *  KeySpan, for making a handy, cheap ($40) widget that was so easy to take
- *           apart and trace with an ohmmeter.
- *
- * TODO:
- *  lots. grep for TODO. Interrupt safety needs stress-testing. Better flow
- *  control. Interrupting host upon change in DCD, etc, counting transitions.
- *  Need to find a safe device id to use (the one used by the Keyspan firmware
- *  under Windows would be ideal.. can anyone figure out what it is?). Parity.
- *  More baud rates. Oh, and the string-descriptor-length silicon bug
- *  workaround should be implemented, but I'm lazy, and the consequence is
- *  that the device name strings that show up in your kernel log will have
- *  lots of trailing binary garbage in them (appears as ????). Device strings
- *  should be made more accurate.
- *
- * Questions, bugs, patches to Brian.
- *
- *  -Brian Warner <warner@lothar.com>
- *
- */
-	
-#define HIGH(x) (((x) & 0xff00) / 256)
-#define LOW(x) ((x) & 0xff)
-
-#define dpl1 0x84
-#define dph1 0x85
-#define dps 0x86
-
-;;; our bit assignments
-#define TX_RUNNING 0
-#define DO_TX_UNTHROTTLE 1
-	
-	;; stack from 0x60 to 0x7f: should really set SP to 0x60-1, not 0x60
-#define STACK #0x60-1
-
-#define EXIF 0x91
-#define EIE 0xe8
-	.flag EUSB, EIE.0
-	.flag ES0, IE.4
-
-#define EP0CS #0x7fb4
-#define EP0STALLbit #0x01
-#define IN0BUF #0x7f00
-#define IN0BC #0x7fb5
-#define OUT0BUF #0x7ec0
-#define OUT0BC #0x7fc5		
-#define IN2BUF #0x7e00
-#define IN2BC #0x7fb9
-#define IN2CS #0x7fb8
-#define OUT2BC #0x7fc9
-#define OUT2CS #0x7fc8
-#define OUT2BUF #0x7dc0
-#define IN4BUF #0x7d00
-#define IN4BC #0x7fbd
-#define IN4CS #0x7fbc
-#define OEB #0x7f9d
-#define OUTB #0x7f97
-#define OEC #0x7f9e
-#define OUTC #0x7f98
-#define PINSC #0x7f9b
-#define PORTCCFG #0x7f95
-#define IN07IRQ #0x7fa9
-#define OUT07IRQ #0x7faa
-#define IN07IEN #0x7fac
-#define OUT07IEN #0x7fad
-#define USBIRQ #0x7fab
-#define USBIEN #0x7fae
-#define USBBAV #0x7faf
-#define USBCS #0x7fd6
-#define SUDPTRH #0x7fd4
-#define SUDPTRL #0x7fd5
-#define SETUPDAT #0x7fe8
-		
-	;; usb interrupt : enable is EIE.0 (0xe8), flag is EXIF.4 (0x91)
-
-	.org 0
-	ljmp start
-	;; interrupt vectors
-	.org 23H
-	ljmp serial_int
-	.byte 0
-	
-	.org 43H
-	ljmp USB_Jump_Table
-	.byte 0			; filled in by the USB core
-
-;;; local variables. These are not initialized properly: do it by hand.
-	.org 30H
-rx_ring_in:	.byte 0
-rx_ring_out:	.byte 0
-tx_ring_in:	.byte 0
-tx_ring_out:	.byte 0
-tx_unthrottle_threshold:	.byte 0
-		
-	.org 0x100H		; wants to be on a page boundary
-USB_Jump_Table:
-	ljmp	ISR_Sudav	; Setup Data Available
-	.byte 0
-	ljmp	0		; Start of Frame
-	.byte 0
-	ljmp	0		; Setup Data Loading
-	.byte 0
-	ljmp	0		; Global Suspend
-	.byte 	0
-	ljmp	0		; USB Reset  	
-	.byte	0
-	ljmp	0		; Reserved
-	.byte	0
-	ljmp	0		; End Point 0 In
-	.byte	0
-	ljmp	0		; End Point 0 Out
-	.byte	0
-	ljmp	0		; End Point 1 In
-	.byte	0
-	ljmp	0		; End Point 1 Out
-	.byte	0
-	ljmp	ISR_Ep2in
-	.byte	0
-	ljmp	ISR_Ep2out
-	.byte	0
-
-
-	.org 0x200
-		
-start:	mov SP,STACK-1 ; set stack
-	;; clear local variables
-	clr a
-	mov tx_ring_in, a
-	mov tx_ring_out, a
-	mov rx_ring_in, a
-	mov rx_ring_out, a
-	mov tx_unthrottle_threshold, a
-	clr TX_RUNNING
-	clr DO_TX_UNTHROTTLE
-	
-	;; clear fifo with "fe"
-	mov r1, 0
-	mov a, #0xfe
-	mov dptr, #tx_ring
-clear_tx_ring_loop:
-	movx @dptr, a
-	inc dptr
-	djnz r1, clear_tx_ring_loop
-
-	mov a, #0xfd
-	mov dptr, #rx_ring
-clear_rx_ring_loop:
-	movx @dptr, a
-	inc dptr
-	djnz r1, clear_rx_ring_loop
-
-;;; turn on the RS-232 driver chip (bring the STANDBY pin low)
-	;; set OEB.1
-	mov a, #02H
-	mov dptr,OEB
-	movx @dptr,a
-	;; clear PB1
-	mov a, #00H
-	mov dptr,OUTB
-	movx @dptr,a
-	;; set OEC.[127]
-	mov a, #0x86
-	mov dptr,OEC
-	movx @dptr,a
-	;; set PORTCCFG.[01] to route TxD0,RxD0 to serial port
-	mov dptr, PORTCCFG
-	mov a, #0x03
-	movx @dptr, a
-	
-	;; set up interrupts, autovectoring
-	mov dptr, USBBAV
-	movx a,@dptr
-	setb acc.0		; AVEN bit to 0
-	movx @dptr, a
-
-	mov a,#0x01		; enable SUDAV:	setup data available (for ep0)
-	mov dptr, USBIRQ
-	movx @dptr, a		; clear SUDAVI
-	mov dptr, USBIEN
-	movx @dptr, a
-	
-	mov dptr, IN07IEN
-	mov a,#0x04		; enable IN2 int
-	movx @dptr, a
-	
-	mov dptr, OUT07IEN
-	mov a,#0x04		; enable OUT2 int
-	movx @dptr, a
-	mov dptr, OUT2BC
-	movx @dptr, a		; arm OUT2
-
-	mov a, #0x84		; turn on RTS, DTR
-	mov dptr,OUTC
-	movx @dptr, a
-	;; setup the serial port. 9600 8N1.
-	mov a,#01010011		; mode 1, enable rx, clear int
-	mov SCON, a
-	;;  using timer2, in 16-bit baud-rate-generator mode
-	;;   (xtal 12MHz, internal fosc 24MHz)
-	;;  RCAP2H,RCAP2L = 65536 - fosc/(32*baud)
-	;;  57600: 0xFFF2.F, say 0xFFF3
-	;;   9600: 0xFFB1.E, say 0xFFB2
-	;;    300: 0xF63C
-#define BAUD 9600
-#define BAUD_TIMEOUT(rate) (65536 - (24 * 1000 * 1000) / (32 * rate))
-#define BAUD_HIGH(rate) HIGH(BAUD_TIMEOUT(rate))
-#define BAUD_LOW(rate) LOW(BAUD_TIMEOUT(rate))
-		
-	mov T2CON, #030h	; rclk=1,tclk=1,cp=0,tr2=0(enable later)
-	mov r3, #5
-	acall set_baud
-	setb TR2
-	mov SCON, #050h
-	
-#if 0
-	mov r1, #0x40
-	mov a, #0x41
-send:	
-	mov SBUF, a
-	inc a
-	anl a, #0x3F
-	orl a, #0x40
-;	xrl a, #0x02
-wait1:	
-	jnb TI, wait1
-	clr TI
-	djnz r1, send
-;done:	sjmp done
-
-#endif
-	
-	setb EUSB
-	setb EA
-	setb ES0
-	;acall dump_stat
-
-	;; hey, what say we RENUMERATE! (TRM p.62)
-	mov a, #0
-	mov dps, a
-	mov dptr, USBCS
-	mov a, #0x02		; DISCON=0, DISCOE=0, RENUM=1
-	movx @dptr, a
-	;; now presence pin is floating, simulating disconnect. wait 0.5s
-	mov r1, #46
-renum_wait1:
-	mov r2, #0
-renum_wait2:
-	mov r3, #0
-renum_wait3:
-	djnz r3, renum_wait3
-	djnz r2, renum_wait2
-	djnz r1, renum_wait1	; wait about n*(256^2) 6MHz clocks
-	mov a, #0x06		; DISCON=0, DISCOE=1, RENUM=1
-	movx @dptr, a
-	;; we are back online. the host device will now re-query us
-	
-	
-main:	sjmp main
-
-	
-
-ISR_Sudav:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	mov a,EXIF
-	clr acc.4
-	mov EXIF,a		; clear INT2 first
-	mov dptr, USBIRQ	; clear USB int
-	mov a,#01h
-	movx @dptr,a
-
-	;; get request type
-	mov dptr, SETUPDAT
-	movx a, @dptr
-	mov r1, a		; r1 = bmRequestType
-	inc dptr
-	movx a, @dptr
-	mov r2, a		; r2 = bRequest
-	inc dptr
-	movx a, @dptr
-	mov r3, a		; r3 = wValueL
-	inc dptr
-	movx a, @dptr
-	mov r4, a		; r4 = wValueH
-
-	;; main switch on bmRequest.type: standard or vendor
-	mov a, r1
-	anl a, #0x60
-	cjne a, #0x00, setup_bmreq_type_not_standard
-	;; standard request: now main switch is on bRequest
-	ljmp setup_bmreq_is_standard
-	
-setup_bmreq_type_not_standard:	
-	;; a still has bmreq&0x60
-	cjne a, #0x40, setup_bmreq_type_not_vendor
-	;; Anchor reserves bRequest 0xa0-0xaf, we use small ones
-	;; switch on bRequest. bmRequest will always be 0x41 or 0xc1
-	cjne r2, #0x00, setup_ctrl_not_00
-	;; 00 is set baud, wValue[0] has baud rate index
-	lcall set_baud		; index in r3, carry set if error
-	jc setup_bmreq_type_not_standard__do_stall
-	ljmp setup_done_ack
-setup_bmreq_type_not_standard__do_stall:
-	ljmp setup_stall
-setup_ctrl_not_00:
-	cjne r2, #0x01, setup_ctrl_not_01
-	;; 01 is reserved for set bits (parity). TODO
-	ljmp setup_stall
-setup_ctrl_not_01:
-	cjne r2, #0x02, setup_ctrl_not_02
-	;; 02 is set HW flow control. TODO
-	ljmp setup_stall
-setup_ctrl_not_02:
-	cjne r2, #0x03, setup_ctrl_not_03
-	;; 03 is control pins (RTS, DTR).
-	ljmp control_pins	; will jump to setup_done_ack,
-				;  or setup_return_one_byte
-setup_ctrl_not_03:
-	cjne r2, #0x04, setup_ctrl_not_04
-	;; 04 is send break (really "turn break on/off"). TODO
-	cjne r3, #0x00, setup_ctrl_do_break_on
-	;; do break off: restore PORTCCFG.1 to reconnect TxD0 to serial port
-	mov dptr, PORTCCFG
-	movx a, @dptr
-	orl a, #0x02
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_ctrl_do_break_on:
-	;; do break on: clear PORTCCFG.0, set TxD high(?) (b1 low)
-	mov dptr, OUTC
-	movx a, @dptr
-	anl a, #0xfd		; ~0x02
-	movx @dptr, a
-	mov dptr, PORTCCFG
-	movx a, @dptr
-	anl a, #0xfd		; ~0x02
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_ctrl_not_04:
-	cjne r2, #0x05, setup_ctrl_not_05
-	;; 05 is set desired interrupt bitmap. TODO
-	ljmp setup_stall
-setup_ctrl_not_05:
-	cjne r2, #0x06, setup_ctrl_not_06
-	;; 06 is query room
-	cjne r3, #0x00, setup_ctrl_06_not_00
-	;; 06, wValue[0]=0 is query write_room
-	mov a, tx_ring_out
-	setb c
-	subb a, tx_ring_in	; out-1-in = 255 - (in-out)
-	ljmp setup_return_one_byte
-setup_ctrl_06_not_00:
-	cjne r3, #0x01, setup_ctrl_06_not_01
-	;; 06, wValue[0]=1 is query chars_in_buffer
-	mov a, tx_ring_in
-	clr c
-	subb a, tx_ring_out	; in-out
-	ljmp setup_return_one_byte
-setup_ctrl_06_not_01:	
-	ljmp setup_stall
-setup_ctrl_not_06:
-	cjne r2, #0x07, setup_ctrl_not_07
-	;; 07 is request tx unthrottle interrupt
-	mov tx_unthrottle_threshold, r3; wValue[0] is threshold value
-	ljmp setup_done_ack
-setup_ctrl_not_07:
-	ljmp setup_stall
-	
-setup_bmreq_type_not_vendor:
-	ljmp setup_stall
-
-
-setup_bmreq_is_standard:	
-	cjne r2, #0x00, setup_breq_not_00
-	;; 00:	Get_Status (sub-switch on bmRequestType: device, ep, int)
-	cjne r1, #0x80, setup_Get_Status_not_device
-	;; Get_Status(device)
-	;;  are we self-powered? no. can we do remote wakeup? no
-	;;   so return two zero bytes. This is reusable
-setup_return_two_zero_bytes:
-	mov dptr, IN0BUF
-	clr a
-	movx @dptr, a
-	inc dptr
-	movx @dptr, a
-	mov dptr, IN0BC
-	mov a, #2
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_Get_Status_not_device:
-	cjne r1, #0x82, setup_Get_Status_not_endpoint
-	;; Get_Status(endpoint)
-	;;  must get stall bit for ep[wIndexL], return two bytes, bit in lsb 0
-	;; for now: cheat. TODO
-	sjmp setup_return_two_zero_bytes
-setup_Get_Status_not_endpoint:
-	cjne r1, #0x81, setup_Get_Status_not_interface
-	;; Get_Status(interface): return two zeros
-	sjmp setup_return_two_zero_bytes
-setup_Get_Status_not_interface:	
-	ljmp setup_stall
-	
-setup_breq_not_00:
-	cjne r2, #0x01, setup_breq_not_01
-	;; 01:	Clear_Feature (sub-switch on wValueL: stall, remote wakeup)
-	cjne r3, #0x00, setup_Clear_Feature_not_stall
-	;; Clear_Feature(stall). should clear a stall bit. TODO
-	ljmp setup_stall
-setup_Clear_Feature_not_stall:
-	cjne r3, #0x01, setup_Clear_Feature_not_rwake
-	;; Clear_Feature(remote wakeup). ignored.
-	ljmp setup_done_ack
-setup_Clear_Feature_not_rwake:
-	ljmp setup_stall
-	
-setup_breq_not_01:
-	cjne r2, #0x03, setup_breq_not_03
-	;; 03:	Set_Feature (sub-switch on wValueL: stall, remote wakeup)
-	cjne r3, #0x00, setup_Set_Feature_not_stall
-	;; Set_Feature(stall). Should set a stall bit. TODO
-	ljmp setup_stall
-setup_Set_Feature_not_stall:
-	cjne r3, #0x01, setup_Set_Feature_not_rwake
-	;; Set_Feature(remote wakeup). ignored.
-	ljmp setup_done_ack
-setup_Set_Feature_not_rwake:
-	ljmp setup_stall
-	
-setup_breq_not_03:	
-	cjne r2, #0x06, setup_breq_not_06
-	;; 06:	Get_Descriptor (s-switch on wValueH: dev, config[n], string[n])
-	cjne r4, #0x01, setup_Get_Descriptor_not_device
-	;; Get_Descriptor(device)
-	mov dptr, SUDPTRH
-	mov a, #HIGH(desc_device)
-	movx @dptr, a
-	mov dptr, SUDPTRL
-	mov a, #LOW(desc_device)
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_Get_Descriptor_not_device:
-	cjne r4, #0x02, setup_Get_Descriptor_not_config
-	;; Get_Descriptor(config[n])
-	cjne r3, #0x00, setup_stall; only handle n==0
-	;; Get_Descriptor(config[0])
-	mov dptr, SUDPTRH
-	mov a, #HIGH(desc_config1)
-	movx @dptr, a
-	mov dptr, SUDPTRL
-	mov a, #LOW(desc_config1)
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_Get_Descriptor_not_config:
-	cjne r4, #0x03, setup_Get_Descriptor_not_string
-	;; Get_Descriptor(string[wValueL])
-	;;  if (wValueL >= maxstrings) stall
-	mov a, #((desc_strings_end-desc_strings)/2)
-	clr c
-	subb a,r3		; a=4, r3 = 0..3 . if a<=0 then stall
-	jc  setup_stall
-	jz  setup_stall
-	mov a, r3
-	add a, r3		; a = 2*wValueL
-	mov dptr, #desc_strings
-	add a, dpl
-	mov dpl, a
-	mov a, #0
-	addc a, dph
-	mov dph, a		; dph = desc_strings[a]. big endian! (handy)
-	;; it looks like my adapter uses a revision of the EZUSB that
-	;; contains "rev D errata number 8", as hinted in the EzUSB example
-	;; code. I cannot find an actual errata description on the Cypress
-	;; web site, but from the example code it looks like this bug causes
-	;; the length of string descriptors to be read incorrectly, possibly
-	;; sending back more characters than the descriptor has. The workaround
-	;; is to manually send out all of the data. The consequence of not
-	;; using the workaround is that the strings gathered by the kernel
-	;; driver are too long and are filled with trailing garbage (including
-	;; leftover strings). Writing this out by hand is a nuisance, so for
-	;; now I will just live with the bug.
-	movx a, @dptr
-	mov r1, a
-	inc dptr
-	movx a, @dptr
-	mov r2, a
-	mov dptr, SUDPTRH
-	mov a, r1
-	movx @dptr, a
-	mov dptr, SUDPTRL
-	mov a, r2
-	movx @dptr, a
-	;; done
-	ljmp setup_done_ack
-	
-setup_Get_Descriptor_not_string:
-	ljmp setup_stall
-	
-setup_breq_not_06:
-	cjne r2, #0x08, setup_breq_not_08
-	;; Get_Configuration. always 1. return one byte.
-	;; this is reusable
-	mov a, #1
-setup_return_one_byte:	
-	mov dptr, IN0BUF
-	movx @dptr, a
-	mov a, #1
-	mov dptr, IN0BC
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_breq_not_08:
-	cjne r2, #0x09, setup_breq_not_09
-	;; 09: Set_Configuration. ignored.
-	ljmp setup_done_ack
-setup_breq_not_09:
-	cjne r2, #0x0a, setup_breq_not_0a
-	;; 0a: Get_Interface. get the current altsetting for int[wIndexL]
-	;;  since we only have one interface, ignore wIndexL, return a 0
-	mov a, #0
-	ljmp setup_return_one_byte
-setup_breq_not_0a:
-	cjne r2, #0x0b, setup_breq_not_0b
-	;; 0b: Set_Interface. set altsetting for interface[wIndexL]. ignored
-	ljmp setup_done_ack
-setup_breq_not_0b:
-	ljmp setup_stall
-
-		
-setup_done_ack:	
-	;; now clear HSNAK
-	mov dptr, EP0CS
-	mov a, #0x02
-	movx @dptr, a
-	sjmp setup_done
-setup_stall:	
-	;; unhandled. STALL
-	;EP0CS |= bmEPSTALL
-	mov dptr, EP0CS
-	movx a, @dptr
-	orl a, EP0STALLbit
-	movx @dptr, a
-	sjmp setup_done
-	
-setup_done:	
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-;;; ==============================================================
-	
-set_baud:			; baud index in r3
-	;; verify a < 10
-	mov a, r3
-	jb ACC.7, set_baud__badbaud
-	clr c
-	subb a, #10
-	jnc set_baud__badbaud
-	mov a, r3
-	rl a			; a = index*2
-	add a, #LOW(baud_table)
-	mov dpl, a
-	mov a, #HIGH(baud_table)
-	addc a, #0
-	mov dph, a
-	;; TODO: shut down xmit/receive
-	;; TODO: wait for current xmit char to leave
-	;; TODO: shut down timer to avoid partial-char glitch
-	movx a,@dptr		; BAUD_HIGH
-	mov RCAP2H, a
-	mov TH2, a
-	inc dptr
-	movx a,@dptr		; BAUD_LOW
-	mov RCAP2L, a
-	mov TL2, a
-	;; TODO: restart xmit/receive
-	;; TODO: reenable interrupts, resume tx if pending
-	clr c			; c=0: success
-	ret
-set_baud__badbaud:
-	setb c			; c=1: failure
-	ret
-	
-;;; ==================================================
-control_pins:
-	cjne r1, #0x41, control_pins_in
-control_pins_out:
-	mov a, r3 ; wValue[0] holds new bits:	b7 is new DTR, b2 is new RTS
-	xrl a, #0xff		; 1 means active, 0V, +12V ?
-	anl a, #0x84
-	mov r3, a
-	mov dptr, OUTC
-	movx a, @dptr		; only change bits 7 and 2
-	anl a, #0x7b		; ~0x84
-	orl a, r3
-	movx @dptr, a		; other pins are inputs, bits ignored
-	ljmp setup_done_ack
-control_pins_in:
-	mov dptr, PINSC
-	movx a, @dptr
-	xrl a, #0xff
-	ljmp setup_return_one_byte
-
-;;; ========================================
-	
-ISR_Ep2in:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	mov a,EXIF
-	clr acc.4
-	mov EXIF,a		; clear INT2 first
-	mov dptr, IN07IRQ	; clear USB int
-	mov a,#04h
-	movx @dptr,a
-
-	;; do stuff
-	lcall start_in
-	
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-ISR_Ep2out:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	mov a,EXIF
-	clr acc.4
-	mov EXIF,a		; clear INT2 first
-	mov dptr, OUT07IRQ	; clear USB int
-	mov a,#04h
-	movx @dptr,a
-
-	;; do stuff
-
-	;; copy data into buffer. for now, assume we will have enough space
-	mov dptr, OUT2BC	; get byte count
-	movx a,@dptr
-	mov r1, a
-	clr a
-	mov dps, a
-	mov dptr, OUT2BUF	; load DPTR0 with source
-	mov dph1, #HIGH(tx_ring)	; load DPTR1 with target
-	mov dpl1, tx_ring_in
-OUT_loop:
-	movx a,@dptr		; read
-	inc dps			; switch to DPTR1: target
-	inc dpl1		; target = tx_ring_in+1
-	movx @dptr,a		; store
-	mov a,dpl1
-	cjne a, tx_ring_out, OUT_no_overflow
-	sjmp OUT_overflow
-OUT_no_overflow:	
-	inc tx_ring_in		; tx_ring_in++
-	inc dps			; switch to DPTR0: source
-	inc dptr
-	djnz r1, OUT_loop
-	sjmp OUT_done
-OUT_overflow:
-	;; signal overflow
-	;; fall through
-OUT_done:	
-	;; ack
-	mov dptr,OUT2BC
-	movx @dptr,a
-
-	;; start tx
-	acall maybe_start_tx
-	;acall dump_stat
-	
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-dump_stat:
-	;; fill in EP4in with a debugging message:
-	;;   tx_ring_in, tx_ring_out, rx_ring_in, rx_ring_out
-	;;   tx_active
-	;;   tx_ring[0..15]
-	;;   0xfc
-	;;   rx_ring[0..15]
-	clr a
-	mov dps, a
-	
-	mov dptr, IN4CS
-	movx a, @dptr
-	jb acc.1, dump_stat__done; busy: cannot dump, old one still pending
-	mov dptr, IN4BUF
-	
-	mov a, tx_ring_in
-	movx @dptr, a
-	inc dptr
-	mov a, tx_ring_out
-	movx @dptr, a
-	inc dptr
-
-	mov a, rx_ring_in
-	movx @dptr, a
-	inc dptr
-	mov a, rx_ring_out
-	movx @dptr, a
-	inc dptr
-	
-	clr a
-	jnb TX_RUNNING, dump_stat__no_tx_running
-	inc a
-dump_stat__no_tx_running:
-	movx @dptr, a
-	inc dptr
-	;; tx_ring[0..15]
-	inc dps
-	mov dptr, #tx_ring	; DPTR1: source
-	mov r1, #16
-dump_stat__tx_ring_loop:
-	movx a, @dptr
-	inc dptr
-	inc dps
-	movx @dptr, a
-	inc dptr
-	inc dps
-	djnz r1, dump_stat__tx_ring_loop
-	inc dps
-	
-	mov a, #0xfc
-	movx @dptr, a
-	inc dptr
-	
-	;; rx_ring[0..15]
-	inc dps
-	mov dptr, #rx_ring	; DPTR1: source
-	mov r1, #16
-dump_stat__rx_ring_loop:
-	movx a, @dptr
-	inc dptr
-	inc dps
-	movx @dptr, a
-	inc dptr
-	inc dps
-	djnz r1, dump_stat__rx_ring_loop
-	
-	;; now send it
-	clr a
-	mov dps, a
-	mov dptr, IN4BC
-	mov a, #38
-	movx @dptr, a
-dump_stat__done:	
-	ret
-		
-;;; ============================================================
-	
-maybe_start_tx:
-	;; make sure the tx process is running.
-	jb TX_RUNNING, start_tx_done
-start_tx:
-	;; is there work to be done?
-	mov a, tx_ring_in
-	cjne a,tx_ring_out, start_tx__work
-	ret			; no work
-start_tx__work:	
-	;; tx was not running. send the first character, setup the TI int
-	inc tx_ring_out		; [++tx_ring_out]
-	mov dph, #HIGH(tx_ring)
-	mov dpl, tx_ring_out
-	movx a, @dptr
-	mov sbuf, a
-	setb TX_RUNNING
-start_tx_done:
-	;; can we unthrottle the host tx process?
-	;;  step 1: do we care?
-	mov a, #0
-	cjne a, tx_unthrottle_threshold, start_tx__maybe_unthrottle_tx
-	;; nope
-start_tx_really_done:
-	ret
-start_tx__maybe_unthrottle_tx:
-	;;  step 2: is there now room?
-	mov a, tx_ring_out
-	setb c
-	subb a, tx_ring_in
-	;; a is now write_room. If thresh >= a, we can unthrottle
-	clr c
-	subb a, tx_unthrottle_threshold
-	jc start_tx_really_done	; nope
-	;; yes, we can unthrottle. remove the threshold and mark a request
-	mov tx_unthrottle_threshold, #0
-	setb DO_TX_UNTHROTTLE
-	;; prod rx, which will actually send the message when in2 becomes free
-	ljmp start_in
-	
-
-serial_int:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	jnb TI, serial_int__not_tx
-	;; tx finished. send another character if we have one
-	clr TI			; clear int
-	clr TX_RUNNING
-	lcall start_tx
-serial_int__not_tx:
-	jnb RI, serial_int__not_rx
-	lcall get_rx_char
-	clr RI			; clear int
-serial_int__not_rx:	
-	;; return
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-get_rx_char:
-	mov dph, #HIGH(rx_ring)
-	mov dpl, rx_ring_in
-	inc dpl			; target = rx_ring_in+1
-	mov a, sbuf
-	movx @dptr, a
-	;; check for overflow before incrementing rx_ring_in
-	mov a, dpl
-	cjne a, rx_ring_out, get_rx_char__no_overflow
-	;; signal overflow
-	ret
-get_rx_char__no_overflow:	
-	inc rx_ring_in
-	;; kick off USB INpipe
-	acall start_in
-	ret
-
-start_in:
-	;; check if the inpipe is already running.
-	mov dptr, IN2CS
-	movx a, @dptr
-	jb acc.1, start_in__done; int will handle it
-	jb DO_TX_UNTHROTTLE, start_in__do_tx_unthrottle
-	;; see if there is any work to do. a serial interrupt might occur
-	;; during this sequence?
-	mov a, rx_ring_in
-	cjne a, rx_ring_out, start_in__have_work
-	ret			; nope
-start_in__have_work:	
-	;; now copy as much data as possible into the pipe. 63 bytes max.
-	clr a
-	mov dps, a
-	mov dph, #HIGH(rx_ring)	; load DPTR0 with source
-	inc dps
-	mov dptr, IN2BUF	; load DPTR1 with target
-	movx @dptr, a		; in[0] signals that rest of IN is rx data
-	inc dptr
-	inc dps
-	;; loop until we run out of data, or we have copied 64 bytes
-	mov r1, #1		; INbuf size counter
-start_in__loop:
-	mov a, rx_ring_in
-	cjne a, rx_ring_out, start_inlocal_irq_enablell_copying
-	sjmp start_in__kick
-start_inlocal_irq_enablell_copying:
-	inc rx_ring_out
-	mov dpl, rx_ring_out
-	movx a, @dptr
-	inc dps
-	movx @dptr, a		; write into IN buffer
-	inc dptr
-	inc dps
-	inc r1
-	cjne r1, #64, start_in__loop; loop
-start_in__kick:
-	;; either we ran out of data, or we copied 64 bytes. r1 has byte count
-	;; kick off IN
-	mov dptr, IN2BC
-	mov a, r1
-	jz start_in__done
-	movx @dptr, a
-	;; done
-start_in__done:
-	;acall dump_stat
-	ret
-start_in__do_tx_unthrottle:
-	;; special sequence: send a tx unthrottle message
-	clr DO_TX_UNTHROTTLE
-	clr a
-	mov dps, a
-	mov dptr, IN2BUF
-	mov a, #1
-	movx @dptr, a
-	inc dptr
-	mov a, #2
-	movx @dptr, a
-	mov dptr, IN2BC
-	movx @dptr, a
-	ret
-	
-putchar:
-	clr TI
-	mov SBUF, a
-putchar_wait:
-	jnb TI, putchar_wait
-	clr TI
-	ret
-
-	
-baud_table:			; baud_high, then baud_low
-	;; baud[0]: 110
-	.byte BAUD_HIGH(110)
-	.byte BAUD_LOW(110)
-	;; baud[1]: 300
-	.byte BAUD_HIGH(300)
-	.byte BAUD_LOW(300)
-	;; baud[2]: 1200
-	.byte BAUD_HIGH(1200)
-	.byte BAUD_LOW(1200)
-	;; baud[3]: 2400
-	.byte BAUD_HIGH(2400)
-	.byte BAUD_LOW(2400)
-	;; baud[4]: 4800
-	.byte BAUD_HIGH(4800)
-	.byte BAUD_LOW(4800)
-	;; baud[5]: 9600
-	.byte BAUD_HIGH(9600)
-	.byte BAUD_LOW(9600)
-	;; baud[6]: 19200
-	.byte BAUD_HIGH(19200)
-	.byte BAUD_LOW(19200)
-	;; baud[7]: 38400
-	.byte BAUD_HIGH(38400)
-	.byte BAUD_LOW(38400)
-	;; baud[8]: 57600
-	.byte BAUD_HIGH(57600)
-	.byte BAUD_LOW(57600)
-	;; baud[9]: 115200
-	.byte BAUD_HIGH(115200)
-	.byte BAUD_LOW(115200)
-
-desc_device:
-	.byte 0x12, 0x01, 0x00, 0x01, 0xff, 0xff, 0xff, 0x40
-	.byte 0xcd, 0x06, 0x04, 0x01, 0x89, 0xab, 1, 2, 3, 0x01
-;;; The "real" device id, which must match the host driver, is that
-;;; "0xcd 0x06 0x04 0x01" sequence, which is 0x06cd, 0x0104
-	
-desc_config1:
-	.byte 0x09, 0x02, 0x20, 0x00, 0x01, 0x01, 0x00, 0x80, 0x32
-	.byte 0x09, 0x04, 0x00, 0x00, 0x02, 0xff, 0xff, 0xff, 0x00
-	.byte 0x07, 0x05, 0x82, 0x03, 0x40, 0x00, 0x01
-	.byte 0x07, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00
-
-desc_strings:
-	.word string_langids, string_mfg, string_product, string_serial
-desc_strings_end:
-
-string_langids:	.byte string_langids_end-string_langids
-	.byte 3
-	.word 0
-string_langids_end:
-
-	;; sigh. These strings are Unicode, meaning UTF16? 2 bytes each. Now
-	;; *that* is a pain in the ass to encode. And they are little-endian
-	;; too. Use this perl snippet to get the bytecodes:
-	/* while (<>) {
-	    @c = split(//);
-	    foreach $c (@c) {
-	     printf("0x%02x, 0x00, ", ord($c));
-	    }
-	   }
-	*/
-
-string_mfg:	.byte string_mfg_end-string_mfg
-	.byte 3
-;	.byte "ACME usb widgets"
-	.byte 0x41, 0x00, 0x43, 0x00, 0x4d, 0x00, 0x45, 0x00, 0x20, 0x00, 0x75, 0x00, 0x73, 0x00, 0x62, 0x00, 0x20, 0x00, 0x77, 0x00, 0x69, 0x00, 0x64, 0x00, 0x67, 0x00, 0x65, 0x00, 0x74, 0x00, 0x73, 0x00
-string_mfg_end:
-	
-string_product:	.byte string_product_end-string_product
-	.byte 3
-;	.byte "ACME USB serial widget"
-	.byte 0x41, 0x00, 0x43, 0x00, 0x4d, 0x00, 0x45, 0x00, 0x20, 0x00, 0x55, 0x00, 0x53, 0x00, 0x42, 0x00, 0x20, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x69, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x20, 0x00, 0x77, 0x00, 0x69, 0x00, 0x64, 0x00, 0x67, 0x00, 0x65, 0x00, 0x74, 0x00
-string_product_end:
-	
-string_serial:	.byte string_serial_end-string_serial
-	.byte 3
-;	.byte "47"
-	.byte 0x34, 0x00, 0x37, 0x00
-string_serial_end:
-		
-;;; ring buffer memory
-	;; tx_ring_in+1 is where the next input byte will go
-	;; [tx_ring_out] has been sent
-	;; if tx_ring_in == tx_ring_out, theres no work to do
-	;; there are (tx_ring_in - tx_ring_out) chars to be written
-	;; dont let _in lap _out
-	;;   cannot inc if tx_ring_in+1 == tx_ring_out
-	;;  write [tx_ring_in+1] then tx_ring_in++
-	;;   if (tx_ring_in+1 == tx_ring_out), overflow
-	;;   else tx_ring_in++
-	;;  read/send [tx_ring_out+1], then tx_ring_out++
-
-	;; rx_ring_in works the same way
-	
-	.org 0x1000
-tx_ring:
-	.skip 0x100		; 256 bytes
-rx_ring:
-	.skip 0x100		; 256 bytes
-	
-	
-	.END
-	
diff --git a/firmware/keyspan_pda/xircom_pgs.HEX b/firmware/keyspan_pda/xircom_pgs.HEX
deleted file mode 100644
index e9b00d70282f..000000000000
--- a/firmware/keyspan_pda/xircom_pgs.HEX
+++ /dev/null
@@ -1,87 +0,0 @@
-:03000000020200F9
-:0400230002059B0037
-:050030000000000000CB
-:0400430002010000B6
-:100100000202BA000200000002000000020000002B
-:1001100002000000020000000200000002000000D7
-:100120000200000002000000020485000204B90081
-:1002000075815EE4F532F533F530F531F534C20031
-:10021000C201A90074FE901000F0A3D9FC74FD90F7
-:100220001100F0A3D9FC907F9474BFF0907F957477
-:10023000EFF07410907F9EF07400907F98F07440FF
-:10024000907F9DF07400907F97F07482907F9EF075
-:10025000907F957403F0907FAFE0D2E0F07401904E
-:100260007FABF0907FAEF0907FAC7404F0907FADE8
-:100270007404F0907FC9F07407907FAFF074209001
-:100280007F9CF07480907F98F07453F59875C83017
-:100290007B059144D2CA759850D2E8D2AFD2AC74E3
-:1002A00000F586907FD67402F0792E7A007B00DB11
-:1002B000FEDAFAD9F67406F080FEC086C082C083EA
-:1002C000C084C085C0E0E591C2E4F591907FAB7435
-:1002D00001F0907FE8E0F9A3E0FAA3E0FBA3E0FCE3
-:1002E000E95460B4000302035DB4406EBA000B121F
-:1002F0000444400302042602042EBA010302042E21
-:10030000BA020302042EBA0303020468BA041EBB35
-:10031000000A907F95E04402F0020426907F98E066
-:1003200054FDF0907F95E054FDF0020426BA0503D9
-:1003300002042EBA0619BB0008E533D39532020435
-:1003400002BB0108E532C3953302040202042EBA4F
-:1003500007058B3402042602042E02042EBA002064
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diff --git a/firmware/keyspan_pda/xircom_pgs.S b/firmware/keyspan_pda/xircom_pgs.S
deleted file mode 100644
index 0b79bbf0ae15..000000000000
--- a/firmware/keyspan_pda/xircom_pgs.S
+++ /dev/null
@@ -1,1192 +0,0 @@
-/*  $Id: loop.s,v 1.23 2000/03/20 09:49:06 warner Exp $
- * 
- *  Firmware for the Keyspan PDA Serial Adapter, a USB serial port based on
- *  the EzUSB microcontroller.
- * 
- *  (C) Copyright 2000 Brian Warner <warner@lothar.com>
- * 
- * 	This program is free software; you can redistribute it and/or modify
- * 	it under the terms of the GNU General Public License as published by
- * 	the Free Software Foundation; either version 2 of the License, or
- * 	(at your option) any later version.
- * 
- *  "Keyspan PDA Serial Adapter" is probably a copyright of Keyspan, the
- *  company.
- * 
- *  This serial adapter is basically an EzUSB chip and an RS-232 line driver
- *  in a little widget that has a DB-9 on one end and a USB plug on the other.
- *  It uses the EzUSB's internal UART0 (using the pins from Port C) and timer2
- *  as a baud-rate generator. The wiring is:
- *   PC0/RxD0 <- rxd (DB9 pin 2)         PC4 <- dsr pin 6
- *   PC1/TxD0 -> txd pin 3               PC5 <- ri  pin 9
- *   PC2      -> rts pin 7               PC6 <- dcd pin 1
- *   PC3      <- cts pin 8               PC7 -> dtr pin 4
- *   PB1 -> line driver standby
- *
- *  The EzUSB register constants below come from their excellent documentation
- *  and sample code (which used to be available at www.anchorchips.com, but
- *  that has now been absorbed into Cypress' site and the CD-ROM contents
- *  don't appear to be available online anymore). If we get multiple
- *  EzUSB-based drivers into the kernel, it might be useful to pull them out
- *  into a separate .h file.
- * 
- * THEORY OF OPERATION:
- *
- *   There are two 256-byte ring buffers, one for tx, one for rx.
- *
- *   EP2out is pure tx data. When it appears, the data is copied into the tx
- *   ring and serial transmission is started if it wasn't already running. The
- *   "tx buffer empty" interrupt may kick off another character if the ring
- *   still has data. If the host is tx-blocked because the ring filled up,
- *   it will request a "tx unthrottle" interrupt. If sending a serial character
- *   empties the ring below the desired threshold, we set a bit that will send
- *   up the tx unthrottle message as soon as the rx buffer becomes free.
- *
- *   EP2in (interrupt) is used to send both rx chars and rx status messages
- *   (only "tx unthrottle" at this time) back up to the host. The first byte
- *   of the rx message indicates data (0) or status msg (1). Status messages
- *   are sent before any data.
- *
- *   Incoming serial characters are put into the rx ring by the serial
- *   interrupt, and the EP2in buffer sent if it wasn't already in transit.
- *   When the EP2in buffer returns, the interrupt prompts us to send more
- *   rx chars (or status messages) if they are pending.
- *
- *   Device control happens through "vendor specific" control messages on EP0.
- *   All messages are destined for the "Interface" (with the index always 0,
- *   so that if their two-port device might someday use similar firmware, we
- *   can use index=1 to refer to the second port). The messages defined are:
- *
- *    bRequest = 0 : set baud/bits/parity
- *               1 : unused
- *               2 : reserved for setting HW flow control (CTSRTS)
- *               3 : get/set "modem info" (pin states: DTR, RTS, DCD, RI, etc)
- *               4 : set break (on/off)
- *               5 : reserved for requesting interrupts on pin state change
- *               6 : query buffer room or chars in tx buffer
- *               7 : request tx unthrottle interrupt
- *
- *  The host-side driver is set to recognize the device ID values stashed in
- *  serial EEPROM (0x06cd, 0x0103), program this firmware into place, then
- *  start it running. This firmware will use EzUSB's "renumeration" trick by
- *  simulating a bus disconnect, then reconnect with a different device ID
- *  (encoded in the desc_device descriptor below). The host driver then
- *  recognizes the new device ID and glues it to the real serial driver code.
- *
- * USEFUL DOCS:
- *  EzUSB Technical Reference Manual: <http://www.cypress.com/>
- *  8051 manuals: everywhere, but try www.dalsemi.com because the EzUSB is
- *   basically the Dallas enhanced 8051 code. Remember that the EzUSB IO ports
- *   use totally different registers!
- *  USB 1.1 spec: www.usb.org
- *
- * HOW TO BUILD:
- *  gcc -x assembler-with-cpp -P -E -o keyspan_pda.asm keyspan_pda.s
- *  as31 -l keyspan_pda.asm
- *  mv keyspan_pda.obj keyspan_pda.hex
- *  perl ezusb_convert.pl keyspan_pda < keyspan_pda.hex > keyspan_pda_fw.h
- * Get as31 from <http://www.pjrc.com/tech/8051/index.html>, and hack on it
- * a bit to make it build.
- *
- * THANKS:
- *  Greg Kroah-Hartman, for coordinating the whole usb-serial thing.
- *  AnchorChips, for making such an incredibly useful little microcontroller.
- *  KeySpan, for making a handy, cheap ($40) widget that was so easy to take
- *           apart and trace with an ohmmeter.
- *
- * TODO:
- *  lots. grep for TODO. Interrupt safety needs stress-testing. Better flow
- *  control. Interrupting host upon change in DCD, etc, counting transitions.
- *  Need to find a safe device id to use (the one used by the Keyspan firmware
- *  under Windows would be ideal.. can anyone figure out what it is?). Parity.
- *  More baud rates. Oh, and the string-descriptor-length silicon bug
- *  workaround should be implemented, but I'm lazy, and the consequence is
- *  that the device name strings that show up in your kernel log will have
- *  lots of trailing binary garbage in them (appears as ????). Device strings
- *  should be made more accurate.
- *
- * Questions, bugs, patches to Brian.
- *
- *  -Brian Warner <warner@lothar.com>
- *
- */
-	
-#define HIGH(x) (((x) & 0xff00) / 256)
-#define LOW(x) ((x) & 0xff)
-
-#define dpl1 0x84
-#define dph1 0x85
-#define dps 0x86
-
-;;; our bit assignments
-#define TX_RUNNING 0
-#define DO_TX_UNTHROTTLE 1
-	
-	;; stack from 0x60 to 0x7f: should really set SP to 0x60-1, not 0x60
-#define STACK #0x60-1
-
-#define EXIF 0x91
-#define EIE 0xe8
-	.flag EUSB, EIE.0
-	.flag ES0, IE.4
-
-#define EP0CS #0x7fb4
-#define EP0STALLbit #0x01
-#define IN0BUF #0x7f00
-#define IN0BC #0x7fb5
-#define OUT0BUF #0x7ec0
-#define OUT0BC #0x7fc5		
-#define IN2BUF #0x7e00
-#define IN2BC #0x7fb9
-#define IN2CS #0x7fb8
-#define OUT2BC #0x7fc9
-#define OUT2CS #0x7fc8
-#define OUT2BUF #0x7dc0
-#define IN4BUF #0x7d00
-#define IN4BC #0x7fbd
-#define IN4CS #0x7fbc
-#define OEB #0x7f9d
-#define OUTB #0x7f97
-#define OEC #0x7f9e
-#define OUTC #0x7f98
-#define PINSC #0x7f9b
-#define PORTBCFG #0x7f94
-#define PORTCCFG #0x7f95
-#define OEA	#0x7f9c
-#define IN07IRQ #0x7fa9
-#define OUT07IRQ #0x7faa
-#define IN07IEN #0x7fac
-#define OUT07IEN #0x7fad
-#define USBIRQ #0x7fab
-#define USBIEN #0x7fae
-#define USBBAV #0x7faf
-#define USBCS #0x7fd6
-#define SUDPTRH #0x7fd4
-#define SUDPTRL #0x7fd5
-#define SETUPDAT #0x7fe8
-		
-	;; usb interrupt : enable is EIE.0 (0xe8), flag is EXIF.4 (0x91)
-
-	.org 0
-	ljmp start
-	;; interrupt vectors
-	.org 23H
-	ljmp serial_int
-	.byte 0
-	
-	.org 43H
-	ljmp USB_Jump_Table
-	.byte 0			; filled in by the USB core
-
-;;; local variables. These are not initialized properly: do it by hand.
-	.org 30H
-rx_ring_in:	.byte 0
-rx_ring_out:	.byte 0
-tx_ring_in:	.byte 0
-tx_ring_out:	.byte 0
-tx_unthrottle_threshold:	.byte 0
-		
-	.org 0x100H		; wants to be on a page boundary
-USB_Jump_Table:
-	ljmp	ISR_Sudav	; Setup Data Available
-	.byte 0
-	ljmp	0		; Start of Frame
-	.byte 0
-	ljmp	0		; Setup Data Loading
-	.byte 0
-	ljmp	0		; Global Suspend
-	.byte 	0
-	ljmp	0		; USB Reset  	
-	.byte	0
-	ljmp	0		; Reserved
-	.byte	0
-	ljmp	0		; End Point 0 In
-	.byte	0
-	ljmp	0		; End Point 0 Out
-	.byte	0
-	ljmp	0		; End Point 1 In
-	.byte	0
-	ljmp	0		; End Point 1 Out
-	.byte	0
-	ljmp	ISR_Ep2in
-	.byte	0
-	ljmp	ISR_Ep2out
-	.byte	0
-
-
-	.org 0x200
-		
-start:	mov SP,STACK-1 ; set stack
-	;; clear local variables
-	clr a
-	mov tx_ring_in, a
-	mov tx_ring_out, a
-	mov rx_ring_in, a
-	mov rx_ring_out, a
-	mov tx_unthrottle_threshold, a
-	clr TX_RUNNING
-	clr DO_TX_UNTHROTTLE
-	
-	;; clear fifo with "fe"
-	mov r1, 0
-	mov a, #0xfe
-	mov dptr, #tx_ring
-clear_tx_ring_loop:
-	movx @dptr, a
-	inc dptr
-	djnz r1, clear_tx_ring_loop
-
-	mov a, #0xfd
-	mov dptr, #rx_ring
-clear_rx_ring_loop:
-	movx @dptr, a
-	inc dptr
-	djnz r1, clear_rx_ring_loop
-
-;;; turn on the RS-232 driver chip (bring the STANDBY pin low)
-;;; on Xircom the STANDBY is wired to PB6 and PC4 
-	mov dptr, PORTBCFG
-        mov a, #0xBf
-        movx @dptr, a
-	mov dptr, PORTCCFG
-        mov a, #0xef
-        movx @dptr, a
-	
-	;; set OEC.4
-        mov a, #0x10
-        mov dptr,OEC
-        movx @dptr,a
-
-        ;; clear PC4
-        mov a, #0x00
-        mov dptr,OUTC
-        movx @dptr,a
-
-	;; set OEB.6
-	mov a, #0x40
-	mov dptr,OEB
-	movx @dptr,a
-
-	;; clear PB6
-	mov a, #0x00
-	mov dptr,OUTB
-	movx @dptr,a
-
-	;; set OEC.[17]
-	mov a, #0x82
-	mov dptr,OEC
-	movx @dptr,a
-
-
-	;; set PORTCCFG.[01] to route TxD0,RxD0 to serial port
-	mov dptr, PORTCCFG
-	mov a, #0x03
-	movx @dptr, a
-	
-	;; set up interrupts, autovectoring
-	;; set BKPT
-	mov dptr, USBBAV
-	movx a,@dptr
-	setb acc.0		; AVEN bit to 0
-	movx @dptr, a
-
-	mov a,#0x01		; enable SUDAV:	setup data available (for ep0)
-	mov dptr, USBIRQ
-	movx @dptr, a		; clear SUDAVI
-	mov dptr, USBIEN
-	movx @dptr, a
-	
-	mov dptr, IN07IEN
-	mov a,#0x04		; enable IN2 int
-	movx @dptr, a
-	
-	mov dptr, OUT07IEN
-	mov a,#0x04		; enable OUT2 int
-	movx @dptr, a
-	mov dptr, OUT2BC
-	movx @dptr, a		; arm OUT2
-
-;;	mov a, #0x84		; turn on RTS, DTR
-;;	mov dptr,OUTC
-;;	movx @dptr, a
-
-	mov a, #0x7             ; turn on  DTR
-        mov dptr,USBBAV
-        movx @dptr, a
-
-	mov a, #0x20             ; turn on the RED led 
-        mov dptr,OEA
-        movx @dptr, a
-
-	mov a, #0x80            ; turn on  RTS
-        mov dptr,OUTC
-        movx @dptr, a
-
-	;; setup the serial port. 9600 8N1.
-	mov a,#0x53		; mode 1, enable rx, clear int
-	mov SCON, a
-	;;  using timer2, in 16-bit baud-rate-generator mode
-	;;   (xtal 12MHz, internal fosc 24MHz)
-	;;  RCAP2H,RCAP2L = 65536 - fosc/(32*baud)
-	;;  57600: 0xFFF2.F, say 0xFFF3
-	;;   9600: 0xFFB1.E, say 0xFFB2
-	;;    300: 0xF63C
-#define BAUD 9600
-#define BAUD_TIMEOUT(rate) (65536 - (24 * 1000 * 1000) / (32 * rate))
-#define BAUD_HIGH(rate) HIGH(BAUD_TIMEOUT(rate))
-#define BAUD_LOW(rate) LOW(BAUD_TIMEOUT(rate))
-		
-	mov T2CON, #030h	; rclk=1,tclk=1,cp=0,tr2=0(enable later)
-	mov r3, #5
-	acall set_baud
-	setb TR2
-	mov SCON, #050h
-	
-#if 0
-	mov r1, #0x40
-	mov a, #0x41
-send:	
-	mov SBUF, a
-	inc a
-	anl a, #0x3F
-	orl a, #0x40
-;	xrl a, #0x02
-wait1:	
-	jnb TI, wait1
-	clr TI
-	djnz r1, send
-;done:	sjmp done
-
-#endif
-	
-	setb EUSB
-	setb EA
-	setb ES0
-	;acall dump_stat
-
-	;; hey, what say we RENUMERATE! (TRM p.62)
-	mov a, #0
-	mov dps, a
-	mov dptr, USBCS
-	mov a, #0x02		; DISCON=0, DISCOE=0, RENUM=1
-	movx @dptr, a
-	;; now presence pin is floating, simulating disconnect. wait 0.5s
-	mov r1, #46
-renum_wait1:
-	mov r2, #0
-renum_wait2:
-	mov r3, #0
-renum_wait3:
-	djnz r3, renum_wait3
-	djnz r2, renum_wait2
-	djnz r1, renum_wait1	; wait about n*(256^2) 6MHz clocks
-	mov a, #0x06		; DISCON=0, DISCOE=1, RENUM=1
-	movx @dptr, a
-	;; we are back online. the host device will now re-query us
-	
-	
-main:	sjmp main
-
-	
-
-ISR_Sudav:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	mov a,EXIF
-	clr acc.4
-	mov EXIF,a		; clear INT2 first
-	mov dptr, USBIRQ	; clear USB int
-	mov a,#01h
-	movx @dptr,a
-
-	;; get request type
-	mov dptr, SETUPDAT
-	movx a, @dptr
-	mov r1, a		; r1 = bmRequestType
-	inc dptr
-	movx a, @dptr
-	mov r2, a		; r2 = bRequest
-	inc dptr
-	movx a, @dptr
-	mov r3, a		; r3 = wValueL
-	inc dptr
-	movx a, @dptr
-	mov r4, a		; r4 = wValueH
-
-	;; main switch on bmRequest.type: standard or vendor
-	mov a, r1
-	anl a, #0x60
-	cjne a, #0x00, setup_bmreq_type_not_standard
-	;; standard request: now main switch is on bRequest
-	ljmp setup_bmreq_is_standard
-	
-setup_bmreq_type_not_standard:	
-	;; a still has bmreq&0x60
-	cjne a, #0x40, setup_bmreq_type_not_vendor
-	;; Anchor reserves bRequest 0xa0-0xaf, we use small ones
-	;; switch on bRequest. bmRequest will always be 0x41 or 0xc1
-	cjne r2, #0x00, setup_ctrl_not_00
-	;; 00 is set baud, wValue[0] has baud rate index
-	lcall set_baud		; index in r3, carry set if error
-	jc setup_bmreq_type_not_standard__do_stall
-	ljmp setup_done_ack
-setup_bmreq_type_not_standard__do_stall:
-	ljmp setup_stall
-setup_ctrl_not_00:
-	cjne r2, #0x01, setup_ctrl_not_01
-	;; 01 is reserved for set bits (parity). TODO
-	ljmp setup_stall
-setup_ctrl_not_01:
-	cjne r2, #0x02, setup_ctrl_not_02
-	;; 02 is set HW flow control. TODO
-	ljmp setup_stall
-setup_ctrl_not_02:
-	cjne r2, #0x03, setup_ctrl_not_03
-	;; 03 is control pins (RTS, DTR).
-	ljmp control_pins	; will jump to setup_done_ack,
-				;  or setup_return_one_byte
-setup_ctrl_not_03:
-	cjne r2, #0x04, setup_ctrl_not_04
-	;; 04 is send break (really "turn break on/off"). TODO
-	cjne r3, #0x00, setup_ctrl_do_break_on
-	;; do break off: restore PORTCCFG.1 to reconnect TxD0 to serial port
-	mov dptr, PORTCCFG
-	movx a, @dptr
-	orl a, #0x02
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_ctrl_do_break_on:
-	;; do break on: clear PORTCCFG.0, set TxD high(?) (b1 low)
-	mov dptr, OUTC
-	movx a, @dptr
-	anl a, #0xfd		; ~0x02
-	movx @dptr, a
-	mov dptr, PORTCCFG
-	movx a, @dptr
-	anl a, #0xfd		; ~0x02
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_ctrl_not_04:
-	cjne r2, #0x05, setup_ctrl_not_05
-	;; 05 is set desired interrupt bitmap. TODO
-	ljmp setup_stall
-setup_ctrl_not_05:
-	cjne r2, #0x06, setup_ctrl_not_06
-	;; 06 is query room
-	cjne r3, #0x00, setup_ctrl_06_not_00
-	;; 06, wValue[0]=0 is query write_room
-	mov a, tx_ring_out
-	setb c
-	subb a, tx_ring_in	; out-1-in = 255 - (in-out)
-	ljmp setup_return_one_byte
-setup_ctrl_06_not_00:
-	cjne r3, #0x01, setup_ctrl_06_not_01
-	;; 06, wValue[0]=1 is query chars_in_buffer
-	mov a, tx_ring_in
-	clr c
-	subb a, tx_ring_out	; in-out
-	ljmp setup_return_one_byte
-setup_ctrl_06_not_01:	
-	ljmp setup_stall
-setup_ctrl_not_06:
-	cjne r2, #0x07, setup_ctrl_not_07
-	;; 07 is request tx unthrottle interrupt
-	mov tx_unthrottle_threshold, r3; wValue[0] is threshold value
-	ljmp setup_done_ack
-setup_ctrl_not_07:
-	ljmp setup_stall
-	
-setup_bmreq_type_not_vendor:
-	ljmp setup_stall
-
-
-setup_bmreq_is_standard:	
-	cjne r2, #0x00, setup_breq_not_00
-	;; 00:	Get_Status (sub-switch on bmRequestType: device, ep, int)
-	cjne r1, #0x80, setup_Get_Status_not_device
-	;; Get_Status(device)
-	;;  are we self-powered? no. can we do remote wakeup? no
-	;;   so return two zero bytes. This is reusable
-setup_return_two_zero_bytes:
-	mov dptr, IN0BUF
-	clr a
-	movx @dptr, a
-	inc dptr
-	movx @dptr, a
-	mov dptr, IN0BC
-	mov a, #2
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_Get_Status_not_device:
-	cjne r1, #0x82, setup_Get_Status_not_endpoint
-	;; Get_Status(endpoint)
-	;;  must get stall bit for ep[wIndexL], return two bytes, bit in lsb 0
-	;; for now: cheat. TODO
-	sjmp setup_return_two_zero_bytes
-setup_Get_Status_not_endpoint:
-	cjne r1, #0x81, setup_Get_Status_not_interface
-	;; Get_Status(interface): return two zeros
-	sjmp setup_return_two_zero_bytes
-setup_Get_Status_not_interface:	
-	ljmp setup_stall
-	
-setup_breq_not_00:
-	cjne r2, #0x01, setup_breq_not_01
-	;; 01:	Clear_Feature (sub-switch on wValueL: stall, remote wakeup)
-	cjne r3, #0x00, setup_Clear_Feature_not_stall
-	;; Clear_Feature(stall). should clear a stall bit. TODO
-	ljmp setup_stall
-setup_Clear_Feature_not_stall:
-	cjne r3, #0x01, setup_Clear_Feature_not_rwake
-	;; Clear_Feature(remote wakeup). ignored.
-	ljmp setup_done_ack
-setup_Clear_Feature_not_rwake:
-	ljmp setup_stall
-	
-setup_breq_not_01:
-	cjne r2, #0x03, setup_breq_not_03
-	;; 03:	Set_Feature (sub-switch on wValueL: stall, remote wakeup)
-	cjne r3, #0x00, setup_Set_Feature_not_stall
-	;; Set_Feature(stall). Should set a stall bit. TODO
-	ljmp setup_stall
-setup_Set_Feature_not_stall:
-	cjne r3, #0x01, setup_Set_Feature_not_rwake
-	;; Set_Feature(remote wakeup). ignored.
-	ljmp setup_done_ack
-setup_Set_Feature_not_rwake:
-	ljmp setup_stall
-	
-setup_breq_not_03:	
-	cjne r2, #0x06, setup_breq_not_06
-	;; 06:	Get_Descriptor (s-switch on wValueH: dev, config[n], string[n])
-	cjne r4, #0x01, setup_Get_Descriptor_not_device
-	;; Get_Descriptor(device)
-	mov dptr, SUDPTRH
-	mov a, #HIGH(desc_device)
-	movx @dptr, a
-	mov dptr, SUDPTRL
-	mov a, #LOW(desc_device)
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_Get_Descriptor_not_device:
-	cjne r4, #0x02, setup_Get_Descriptor_not_config
-	;; Get_Descriptor(config[n])
-	cjne r3, #0x00, setup_stall; only handle n==0
-	;; Get_Descriptor(config[0])
-	mov dptr, SUDPTRH
-	mov a, #HIGH(desc_config1)
-	movx @dptr, a
-	mov dptr, SUDPTRL
-	mov a, #LOW(desc_config1)
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_Get_Descriptor_not_config:
-	cjne r4, #0x03, setup_Get_Descriptor_not_string
-	;; Get_Descriptor(string[wValueL])
-	;;  if (wValueL >= maxstrings) stall
-	mov a, #((desc_strings_end-desc_strings)/2)
-	clr c
-	subb a,r3		; a=4, r3 = 0..3 . if a<=0 then stall
-	jc  setup_stall
-	jz  setup_stall
-	mov a, r3
-	add a, r3		; a = 2*wValueL
-	mov dptr, #desc_strings
-	add a, dpl
-	mov dpl, a
-	mov a, #0
-	addc a, dph
-	mov dph, a		; dph = desc_strings[a]. big endian! (handy)
-	;; it looks like my adapter uses a revision of the EZUSB that
-	;; contains "rev D errata number 8", as hinted in the EzUSB example
-	;; code. I cannot find an actual errata description on the Cypress
-	;; web site, but from the example code it looks like this bug causes
-	;; the length of string descriptors to be read incorrectly, possibly
-	;; sending back more characters than the descriptor has. The workaround
-	;; is to manually send out all of the data. The consequence of not
-	;; using the workaround is that the strings gathered by the kernel
-	;; driver are too long and are filled with trailing garbage (including
-	;; leftover strings). Writing this out by hand is a nuisance, so for
-	;; now I will just live with the bug.
-	movx a, @dptr
-	mov r1, a
-	inc dptr
-	movx a, @dptr
-	mov r2, a
-	mov dptr, SUDPTRH
-	mov a, r1
-	movx @dptr, a
-	mov dptr, SUDPTRL
-	mov a, r2
-	movx @dptr, a
-	;; done
-	ljmp setup_done_ack
-	
-setup_Get_Descriptor_not_string:
-	ljmp setup_stall
-	
-setup_breq_not_06:
-	cjne r2, #0x08, setup_breq_not_08
-	;; Get_Configuration. always 1. return one byte.
-	;; this is reusable
-	mov a, #1
-setup_return_one_byte:	
-	mov dptr, IN0BUF
-	movx @dptr, a
-	mov a, #1
-	mov dptr, IN0BC
-	movx @dptr, a
-	ljmp setup_done_ack
-setup_breq_not_08:
-	cjne r2, #0x09, setup_breq_not_09
-	;; 09: Set_Configuration. ignored.
-	ljmp setup_done_ack
-setup_breq_not_09:
-	cjne r2, #0x0a, setup_breq_not_0a
-	;; 0a: Get_Interface. get the current altsetting for int[wIndexL]
-	;;  since we only have one interface, ignore wIndexL, return a 0
-	mov a, #0
-	ljmp setup_return_one_byte
-setup_breq_not_0a:
-	cjne r2, #0x0b, setup_breq_not_0b
-	;; 0b: Set_Interface. set altsetting for interface[wIndexL]. ignored
-	ljmp setup_done_ack
-setup_breq_not_0b:
-	ljmp setup_stall
-
-		
-setup_done_ack:	
-	;; now clear HSNAK
-	mov dptr, EP0CS
-	mov a, #0x02
-	movx @dptr, a
-	sjmp setup_done
-setup_stall:	
-	;; unhandled. STALL
-	;EP0CS |= bmEPSTALL
-	mov dptr, EP0CS
-	movx a, @dptr
-	orl a, EP0STALLbit
-	movx @dptr, a
-	sjmp setup_done
-	
-setup_done:	
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-;;; ==============================================================
-	
-set_baud:			; baud index in r3
-	;; verify a < 10
-	mov a, r3
-	jb ACC.7, set_baud__badbaud
-	clr c
-	subb a, #10
-	jnc set_baud__badbaud
-	mov a, r3
-	rl a			; a = index*2
-	add a, #LOW(baud_table)
-	mov dpl, a
-	mov a, #HIGH(baud_table)
-	addc a, #0
-	mov dph, a
-	;; TODO: shut down xmit/receive
-	;; TODO: wait for current xmit char to leave
-	;; TODO: shut down timer to avoid partial-char glitch
-	movx a,@dptr		; BAUD_HIGH
-	mov RCAP2H, a
-	mov TH2, a
-	inc dptr
-	movx a,@dptr		; BAUD_LOW
-	mov RCAP2L, a
-	mov TL2, a
-	;; TODO: restart xmit/receive
-	;; TODO: reenable interrupts, resume tx if pending
-	clr c			; c=0: success
-	ret
-set_baud__badbaud:
-	setb c			; c=1: failure
-	ret
-	
-;;; ==================================================
-control_pins:
-	cjne r1, #0x41, control_pins_in
-control_pins_out:
-		;TODO BKPT is DTR
-	mov a, r3 ; wValue[0] holds new bits:	b7 is new RTS
-	xrl a, #0xff		; 1 means active, 0V, +12V ?
-	anl a, #0x80
-	mov r3, a
-	mov dptr, OUTC
-	movx a, @dptr		; only change bit 7 
-	anl a, #0x7F		; ~0x84
-	orl a, r3
-	movx @dptr, a		; other pins are inputs, bits ignored
-	ljmp setup_done_ack
-control_pins_in:
-	mov dptr, PINSC
-	movx a, @dptr
-	xrl a, #0xff
-	ljmp setup_return_one_byte
-
-;;; ========================================
-	
-ISR_Ep2in:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	mov a,EXIF
-	clr acc.4
-	mov EXIF,a		; clear INT2 first
-	mov dptr, IN07IRQ	; clear USB int
-	mov a,#04h
-	movx @dptr,a
-
-	mov a, #0x20             ; Turn off the green LED
-        mov dptr,OEA
-        movx @dptr, a
-
-
-	;; do stuff
-	lcall start_in
-
-	mov a, #0x20             ; Turn off the green LED
-        mov dptr,OEA
-        movx @dptr, a
-
-
-	
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-ISR_Ep2out:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-
-        mov a, #0x10             ; Turn the green LED
-        mov dptr,OEA
-        movx @dptr, a
-
-
-
-	mov a,EXIF
-	clr acc.4
-	mov EXIF,a		; clear INT2 first
-	mov dptr, OUT07IRQ	; clear USB int
-	mov a,#04h
-	movx @dptr,a
-
-	;; do stuff
-
-	;; copy data into buffer. for now, assume we will have enough space
-	mov dptr, OUT2BC	; get byte count
-	movx a,@dptr
-	mov r1, a
-	clr a
-	mov dps, a
-	mov dptr, OUT2BUF	; load DPTR0 with source
-	mov dph1, #HIGH(tx_ring)	; load DPTR1 with target
-	mov dpl1, tx_ring_in
-OUT_loop:
-	movx a,@dptr		; read
-	inc dps			; switch to DPTR1: target
-	inc dpl1		; target = tx_ring_in+1
-	movx @dptr,a		; store
-	mov a,dpl1
-	cjne a, tx_ring_out, OUT_no_overflow
-	sjmp OUT_overflow
-OUT_no_overflow:	
-	inc tx_ring_in		; tx_ring_in++
-	inc dps			; switch to DPTR0: source
-	inc dptr
-	djnz r1, OUT_loop
-	sjmp OUT_done
-OUT_overflow:
-	;; signal overflow
-	;; fall through
-OUT_done:	
-	;; ack
-	mov dptr,OUT2BC
-	movx @dptr,a
-
-	;; start tx
-	acall maybe_start_tx
-	;acall dump_stat
-
-        mov a, #0x20             ; Turn off the green LED
-        mov dptr,OEA
-        movx @dptr, a
-	
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-dump_stat:
-	;; fill in EP4in with a debugging message:
-	;;   tx_ring_in, tx_ring_out, rx_ring_in, rx_ring_out
-	;;   tx_active
-	;;   tx_ring[0..15]
-	;;   0xfc
-	;;   rx_ring[0..15]
-	clr a
-	mov dps, a
-	
-	mov dptr, IN4CS
-	movx a, @dptr
-	jb acc.1, dump_stat__done; busy: cannot dump, old one still pending
-	mov dptr, IN4BUF
-	
-	mov a, tx_ring_in
-	movx @dptr, a
-	inc dptr
-	mov a, tx_ring_out
-	movx @dptr, a
-	inc dptr
-
-	mov a, rx_ring_in
-	movx @dptr, a
-	inc dptr
-	mov a, rx_ring_out
-	movx @dptr, a
-	inc dptr
-	
-	clr a
-	jnb TX_RUNNING, dump_stat__no_tx_running
-	inc a
-dump_stat__no_tx_running:
-	movx @dptr, a
-	inc dptr
-	;; tx_ring[0..15]
-	inc dps
-	mov dptr, #tx_ring	; DPTR1: source
-	mov r1, #16
-dump_stat__tx_ring_loop:
-	movx a, @dptr
-	inc dptr
-	inc dps
-	movx @dptr, a
-	inc dptr
-	inc dps
-	djnz r1, dump_stat__tx_ring_loop
-	inc dps
-	
-	mov a, #0xfc
-	movx @dptr, a
-	inc dptr
-	
-	;; rx_ring[0..15]
-	inc dps
-	mov dptr, #rx_ring	; DPTR1: source
-	mov r1, #16
-dump_stat__rx_ring_loop:
-	movx a, @dptr
-	inc dptr
-	inc dps
-	movx @dptr, a
-	inc dptr
-	inc dps
-	djnz r1, dump_stat__rx_ring_loop
-	
-	;; now send it
-	clr a
-	mov dps, a
-	mov dptr, IN4BC
-	mov a, #38
-	movx @dptr, a
-dump_stat__done:	
-	ret
-		
-;;; ============================================================
-	
-maybe_start_tx:
-	;; make sure the tx process is running.
-	jb TX_RUNNING, start_tx_done
-start_tx:
-	;; is there work to be done?
-	mov a, tx_ring_in
-	cjne a,tx_ring_out, start_tx__work
-	ret			; no work
-start_tx__work:	
-	;; tx was not running. send the first character, setup the TI int
-	inc tx_ring_out		; [++tx_ring_out]
-	mov dph, #HIGH(tx_ring)
-	mov dpl, tx_ring_out
-	movx a, @dptr
-	mov sbuf, a
-	setb TX_RUNNING
-start_tx_done:
-	;; can we unthrottle the host tx process?
-	;;  step 1: do we care?
-	mov a, #0
-	cjne a, tx_unthrottle_threshold, start_tx__maybe_unthrottle_tx
-	;; nope
-start_tx_really_done:
-	ret
-start_tx__maybe_unthrottle_tx:
-	;;  step 2: is there now room?
-	mov a, tx_ring_out
-	setb c
-	subb a, tx_ring_in
-	;; a is now write_room. If thresh >= a, we can unthrottle
-	clr c
-	subb a, tx_unthrottle_threshold
-	jc start_tx_really_done	; nope
-	;; yes, we can unthrottle. remove the threshold and mark a request
-	mov tx_unthrottle_threshold, #0
-	setb DO_TX_UNTHROTTLE
-	;; prod rx, which will actually send the message when in2 becomes free
-	ljmp start_in
-	
-
-serial_int:
-	push dps
-	push dpl
-	push dph
-	push dpl1
-	push dph1
-	push acc
-	jnb TI, serial_int__not_tx
-	;; tx finished. send another character if we have one
-	clr TI			; clear int
-	clr TX_RUNNING
-	lcall start_tx
-serial_int__not_tx:
-	jnb RI, serial_int__not_rx
-	lcall get_rx_char
-	clr RI			; clear int
-serial_int__not_rx:	
-	;; return
-	pop acc
-	pop dph1
-	pop dpl1
-	pop dph
-	pop dpl
-	pop dps
-	reti
-
-get_rx_char:
-	mov dph, #HIGH(rx_ring)
-	mov dpl, rx_ring_in
-	inc dpl			; target = rx_ring_in+1
-	mov a, sbuf
-	movx @dptr, a
-	;; check for overflow before incrementing rx_ring_in
-	mov a, dpl
-	cjne a, rx_ring_out, get_rx_char__no_overflow
-	;; signal overflow
-	ret
-get_rx_char__no_overflow:	
-	inc rx_ring_in
-	;; kick off USB INpipe
-	acall start_in
-	ret
-
-start_in:
-	;; check if the inpipe is already running.
-	mov  a,#0x10
-	mov dptr, OEA
-	movx @dptr,a
-
-	mov dptr, IN2CS
-	movx a, @dptr
-	jb acc.1, start_in__done; int will handle it
-	jb DO_TX_UNTHROTTLE, start_in__do_tx_unthrottle
-	;; see if there is any work to do. a serial interrupt might occur
-	;; during this sequence?
-	mov a, rx_ring_in
-	cjne a, rx_ring_out, start_in__have_work
-	ret			; nope
-start_in__have_work:	
-	;; now copy as much data as possible into the pipe. 63 bytes max.
-	clr a
-	mov dps, a
-	mov dph, #HIGH(rx_ring)	; load DPTR0 with source
-	inc dps
-	mov dptr, IN2BUF	; load DPTR1 with target
-	movx @dptr, a		; in[0] signals that rest of IN is rx data
-	inc dptr
-	inc dps
-	;; loop until we run out of data, or we have copied 64 bytes
-	mov r1, #1		; INbuf size counter
-start_in__loop:
-	mov a, rx_ring_in
-	cjne a, rx_ring_out, start_inlocal_irq_enablell_copying
-	sjmp start_in__kick
-start_inlocal_irq_enablell_copying:
-	inc rx_ring_out
-	mov dpl, rx_ring_out
-	movx a, @dptr
-	inc dps
-	movx @dptr, a		; write into IN buffer
-	inc dptr
-	inc dps
-	inc r1
-	cjne r1, #64, start_in__loop; loop
-start_in__kick:
-	;; either we ran out of data, or we copied 64 bytes. r1 has byte count
-	;; kick off IN
-	mov a, #0x10             ; Turn the green LED
-        mov dptr,OEA
-        movx @dptr, a
-	mov dptr, IN2BC
-	mov a, r1
-	jz start_in__done
-	movx @dptr, a
-	;; done
-start_in__done:
-	;acall dump_stat
-	ret
-start_in__do_tx_unthrottle:
-	;; special sequence: send a tx unthrottle message
-	clr DO_TX_UNTHROTTLE
-	clr a
-	mov dps, a
-	mov dptr, IN2BUF
-	mov a, #1
-	movx @dptr, a
-	inc dptr
-	mov a, #2
-	movx @dptr, a
-	mov dptr, IN2BC
-	movx @dptr, a
-	ret
-	
-putchar:
-	clr TI
-	mov SBUF, a
-putchar_wait:
-	jnb TI, putchar_wait
-	clr TI
-	ret
-
-	
-baud_table:			; baud_high, then baud_low
-	;; baud[0]: 110
-	.byte BAUD_HIGH(110)
-	.byte BAUD_LOW(110)
-	;; baud[1]: 300
-	.byte BAUD_HIGH(300)
-	.byte BAUD_LOW(300)
-	;; baud[2]: 1200
-	.byte BAUD_HIGH(1200)
-	.byte BAUD_LOW(1200)
-	;; baud[3]: 2400
-	.byte BAUD_HIGH(2400)
-	.byte BAUD_LOW(2400)
-	;; baud[4]: 4800
-	.byte BAUD_HIGH(4800)
-	.byte BAUD_LOW(4800)
-	;; baud[5]: 9600
-	.byte BAUD_HIGH(9600)
-	.byte BAUD_LOW(9600)
-	;; baud[6]: 19200
-	.byte BAUD_HIGH(19200)
-	.byte BAUD_LOW(19200)
-	;; baud[7]: 38400
-	.byte BAUD_HIGH(38400)
-	.byte BAUD_LOW(38400)
-	;; baud[8]: 57600
-	.byte BAUD_HIGH(57600)
-	.byte BAUD_LOW(57600)
-	;; baud[9]: 115200
-	.byte BAUD_HIGH(115200)
-	.byte BAUD_LOW(115200)
-
-desc_device:
-	.byte 0x12, 0x01, 0x00, 0x01, 0xff, 0xff, 0xff, 0x40
-	.byte 0xcd, 0x06, 0x04, 0x01, 0x89, 0xab, 1, 2, 3, 0x01
-;;; The "real" device id, which must match the host driver, is that
-;;; "0xcd 0x06 0x04 0x01" sequence, which is 0x06cd, 0x0104
-	
-desc_config1:
-	.byte 0x09, 0x02, 0x20, 0x00, 0x01, 0x01, 0x00, 0x80, 0x32
-	.byte 0x09, 0x04, 0x00, 0x00, 0x02, 0xff, 0xff, 0xff, 0x00
-	.byte 0x07, 0x05, 0x82, 0x03, 0x40, 0x00, 0x01
-	.byte 0x07, 0x05, 0x02, 0x02, 0x40, 0x00, 0x00
-
-desc_strings:
-	.word string_langids, string_mfg, string_product, string_serial
-desc_strings_end:
-
-string_langids:	.byte string_langids_end-string_langids
-	.byte 3
-	.word 0
-string_langids_end:
-
-	;; sigh. These strings are Unicode, meaning UTF16? 2 bytes each. Now
-	;; *that* is a pain in the ass to encode. And they are little-endian
-	;; too. Use this perl snippet to get the bytecodes:
-	/* while (<>) {
-	    @c = split(//);
-	    foreach $c (@c) {
-	     printf("0x%02x, 0x00, ", ord($c));
-	    }
-	   }
-	*/
-
-string_mfg:	.byte string_mfg_end-string_mfg
-	.byte 3
-;	.byte "ACME usb widgets"
-	.byte 0x41, 0x00, 0x43, 0x00, 0x4d, 0x00, 0x45, 0x00, 0x20, 0x00, 0x75, 0x00, 0x73, 0x00, 0x62, 0x00, 0x20, 0x00, 0x77, 0x00, 0x69, 0x00, 0x64, 0x00, 0x67, 0x00, 0x65, 0x00, 0x74, 0x00, 0x73, 0x00
-string_mfg_end:
-	
-string_product:	.byte string_product_end-string_product
-	.byte 3
-;	.byte "ACME USB serial widget"
-	.byte 0x41, 0x00, 0x43, 0x00, 0x4d, 0x00, 0x45, 0x00, 0x20, 0x00, 0x55, 0x00, 0x53, 0x00, 0x42, 0x00, 0x20, 0x00, 0x73, 0x00, 0x65, 0x00, 0x72, 0x00, 0x69, 0x00, 0x61, 0x00, 0x6c, 0x00, 0x20, 0x00, 0x77, 0x00, 0x69, 0x00, 0x64, 0x00, 0x67, 0x00, 0x65, 0x00, 0x74, 0x00
-string_product_end:
-	
-string_serial:	.byte string_serial_end-string_serial
-	.byte 3
-;	.byte "47"
-	.byte 0x34, 0x00, 0x37, 0x00
-string_serial_end:
-		
-;;; ring buffer memory
-	;; tx_ring_in+1 is where the next input byte will go
-	;; [tx_ring_out] has been sent
-	;; if tx_ring_in == tx_ring_out, theres no work to do
-	;; there are (tx_ring_in - tx_ring_out) chars to be written
-	;; dont let _in lap _out
-	;;   cannot inc if tx_ring_in+1 == tx_ring_out
-	;;  write [tx_ring_in+1] then tx_ring_in++
-	;;   if (tx_ring_in+1 == tx_ring_out), overflow
-	;;   else tx_ring_in++
-	;;  read/send [tx_ring_out+1], then tx_ring_out++
-
-	;; rx_ring_in works the same way
-	
-	.org 0x1000
-tx_ring:
-	.skip 0x100		; 256 bytes
-rx_ring:
-	.skip 0x100		; 256 bytes
-	
-	
-	.END
-	
diff --git a/firmware/korg/k1212.dsp.ihex b/firmware/korg/k1212.dsp.ihex
deleted file mode 100644
index b151997b380c..000000000000
--- a/firmware/korg/k1212.dsp.ihex
+++ /dev/null
@@ -1,987 +0,0 @@
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diff --git a/firmware/matrox/g200_warp.H16 b/firmware/matrox/g200_warp.H16
deleted file mode 100644
index 5064b6f01bb4..000000000000
--- a/firmware/matrox/g200_warp.H16
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * WARP pipes are named according to the functions they perform, where
- *
- *   - T stands for computation of texture stage 0
- *   - T2 stands for computation of both texture stage 0 and texture stage 1
- *   - G stands for computation of triangle intensity (Gouraud interpolation)
- *   - Z stands for computation of Z buffer interpolation
- *   - S stands for computation of specular highlight
- *   - A stands for computation of the alpha channel
- *   - F stands for computation of vertex fog interpolation
- */
-/* TGZ */
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
-/* TGZF */
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
-/* TGZA */
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
-/* TGZAF */
-:0568000000008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E80098A0E94040D8ECFF80C0E9008000E81FD718BD3FD722BD8104890401040904C941C0EC110400E041CC41CD49CC49CDD141C0EC51CC51CD80041004080400E000CCC0CDD149C0EC8A1F20E98B3F20E9413C41AD493C49AD10CC10CD08CC08CDB94149BB1FF041CD513C51AD009880E9838007EA241F20E9214580E81A4D80E8315580E8008000E8154149BD1D4151BD2E412AB83453A0E815301D3058E300E0B54048BD3D4050BD2443A0E82C4BA0E8157209E300E01D723530B530BD303D309C97579F008000E86C64C8EC98E1B505BD052E3032C0A0E833C0A0E87464C8EC403C40AD326A2A302073336A00E028731C7283E26F8015EAB83D28DF303520DF403000E0CCE26472254252BF2D424ABF302E30DF382E38DF181D45E91E1545E92B4951BD00E01F73383840AF303040AF241F24DF1D3220E92C1F2CDF1A3320E9B01008E34010B81026F030CD2FF038CD2B8020E92A8020E9A62088E200E0AF20282A26AF202AC0AF341F34DF462446DF283080BF203880BF472447DF4E2C4EDF4F2C4FDF563456DF281528DF201D20DF573457DF00E01D05048010EA89E22B303FC11DBD008000E8008000E8008000E8A068BF25008000E820C020AF2805977400E02A1016C020E9048010EA8CE2950528C128AD1FC115BD008000E8008000E8A8679F6B008000E828C028AD1D252005283280AD402A40BD1C8020E9203320AD207300E0B64951BB262FB0E8192020E9352035DF3D203DDF152015DF1D201DDF26D026CD29492AB8264080BD3B4850BD3E54579F00E082E11EAF599F008000E826302930483C48AD2B72C2E12CC044C2052434BF0D242CBF2D464EBF254656BF201D6F8F323E5FE93E50569F00E03B301E8F519F331E5FE9054454B20D444CB219C0B0E834C044C4337300E03E62579F1EAF599F00E00D20843E58E9281D6F8F052000E0851E58E99B3B33DF202042AF3042569F803E57E93F8F519F30805FE9282824AF811E57E9054757BF0D474FBF888058E91B291BDF301D6F8F3A304FE91C3026DF09E33B053E50569F3B3F4FE91E8F519F00E0AC202D444CB42C1CC0AF254454B400E0C830304630AF1B1B48AF00E02520382C4FE9868057E9381D6F8F287400E00D444CB0054454B02D209B10823E57E932F01BCD1EBD599F831E57E9384738AF34202A3000E00D2032200520878057E91F54579F1742569F00E03B6A3F8F519F371E4FE937322AAF00E03200008000E827C044C0361F4FE91F1F26DF371B37BF172617DF3E174FE93F3F4FE9341F34AF2B05A720332B37DF2717C0AF34804FE9008000E80D211AB6052131B62D444CB6254454B603802AEA17C12BBD0D2005202FC021C6B3689725008000E833C033AF3C274FE900E0252007C044C61750569F00E02D20370F5C9F00E02F201F62579F00E007203F3D5D9F008000E8008000E8281960ECB30500E0172617DF233B33AD35174FE91F261FDF9D1F4FE99E3F4FE939374FE92F2F17AF008000E807071FAF008000E831804FE9008000E89C804FE9008000E8008000E8573920E9162820E91D3B20E91E2B20E92B3220E91C2320E9573620E90080A0E94040D8ECFF80C0E990E200E074FF20EA19C8C1CD1FD718BD3FD722BD9F4149BD008000E8254149BD2D4151BD0D8007EA008000E8354048BD3D4050BD008000E825302D303530B530BD303D309CA75B9F008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E8008000E873FF0AEA008000E8C941C8EC42E100E071FF20EA008000E8008000E8008000E8C840C0EC008000E86EFF20EA008000E8008000E8008000E830
-/* TGZS */
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-/* TGZSF */
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
-/* TGZSA */
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-/* TGZAF */
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
-:0000000001FF
diff --git a/firmware/matrox/g400_warp.H16 b/firmware/matrox/g400_warp.H16
deleted file mode 100644
index b432d1074d8d..000000000000
--- a/firmware/matrox/g400_warp.H16
+++ /dev/null
@@ -1,44 +0,0 @@
-/*
- * WARP pipes are named according to the functions they perform, where
- *
- *   - T stands for computation of texture stage 0
- *   - T2 stands for computation of both texture stage 0 and texture stage 1
- *   - G stands for computation of triangle intensity (Gouraud interpolation)
- *   - Z stands for computation of Z buffer interpolation
- *   - S stands for computation of specular highlight
- *   - A stands for computation of the alpha channel
- *   - F stands for computation of vertex fog interpolation
- */
-/* TGZ */
-:0338000000008898E9008000E80080A0E90000D8ECFF80C0E9008000E8224048BF2A4050BF324149BF3A4151BFC36BCB6B008898E9737BC8EC96E241047B43A0E8734BA0E8ADEE299F00E0490490E251043146B1E84941C0EC3957B1E8000446E27353A0E85141C0EC31003900588015EA080410045149C0EC2F4160EA312039201F42A0E82A424ABF274AA0E81A4252BF1E4960EA737BC8EC265160EA324048BD224050BD124149BD3A4151BDBF2F26BD00E07B723220222012203A20463146BF4E314EBFB3E22D9F008000E8563156BF473947BF4F394FBF573957BF4A8007EA244120E94273F8EC00E02D7333720CE3A52F1EBD43432DDF4B4B2DDFAE1E26BD58E3336653532DDF008000E8B83833BF00E059E31E1241E91A2241E92B403DE93F4BA0E82D73307605803DEA3743A0E83D53A0E84870F8EC2B483CE91F27BCE8008000E8008000E8008000E815C020E915C020E915C020E915C020E9183A41E91D3241E92A4020E9563D56DF463746DF4E3F4EDF163020E94F3F4FDF32322DDF22222DDF12122DDF3A3A2DDF473747DF573D57DF3DCF74C037CF74C431532F9F348020E939E52C9F3C3D20E90A444CB0024454B02A444CB21A4454B21D803AEA0A2002203DCF74C22A201A2030502E9F32315FE938212C9F33395FE931532F9F008000E82A444CB41A4454B439E52C9F383D20E988735EE92A201A202A464EBF1A4656BF31532F9F3E304FE939E52C9F3F384FE90A474FBF024757BF31532F9F3A314FE939E52C9F3B394FE92A434BBF1A4353BF30502E9F36314FE938212C9F37394FE931532F9F803157E939E52C9F813957E9374850BD8A3620E9867657E98B3E20E9823057E9877757E9833857E9354951BD84315EE9301F5FE985395EE9572520E92B4820E91D37E1EA1E35E1EA00E02677244920E9AFFF20EA162620E9572EBFEA1C46A0E8234EA0E82B56A0E81D47A0E8244FA0E82C57A0E81C0023002B0000E01D0024002C0000E01C6523652B6500E01D6524652C6500E01C2360EC36D736AD2B8060EC1D2460EC3ED73EAD2C8060EC1C2BDEE82380DEE8368036BD3E803EBD33D71CBD3BD723BD468046CF4F804FCF563356CF473B47CFD6FF20EA008000E84E334ECF573B57CF9DFF20EA57C0BFEA0080A0E90000D8EC59
-/* TGZF */
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
-/* TGZA */
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-/* TGZAF */
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
-/* TGZS */
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
-/* TGZSF */
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
-/* TGZSA */
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
-/* TGZSAF */
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-/* T2GZ */
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-/* T2GZF */
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-/* T2GZA */
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-/* T2GZAF */
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-/* T2GZS */
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-/* T2GZSF */
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-/* T2GZSA */
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-/* T2GZSAF */
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-:0000000001FF
diff --git a/firmware/mts_cdma.fw.ihex b/firmware/mts_cdma.fw.ihex
deleted file mode 100644
index f6ad0cbd30cb..000000000000
--- a/firmware/mts_cdma.fw.ihex
+++ /dev/null
@@ -1,867 +0,0 @@
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diff --git a/firmware/mts_edge.fw.ihex b/firmware/mts_edge.fw.ihex
deleted file mode 100644
index d14ebd647846..000000000000
--- a/firmware/mts_edge.fw.ihex
+++ /dev/null
@@ -1,881 +0,0 @@
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diff --git a/firmware/mts_gsm.fw.ihex b/firmware/mts_gsm.fw.ihex
deleted file mode 100644
index f6ad0cbd30cb..000000000000
--- a/firmware/mts_gsm.fw.ihex
+++ /dev/null
@@ -1,867 +0,0 @@
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diff --git a/firmware/myricom/lanai.bin.ihex b/firmware/myricom/lanai.bin.ihex
deleted file mode 100644
index bf47f4c74940..000000000000
--- a/firmware/myricom/lanai.bin.ihex
+++ /dev/null
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-:00000001FF
-/* This is the Myrinet MCP code for LANai4.x */
-/* Generated by  cat $MYRI_HOME/lib/lanai/mcp4.dat > myri_code4.h */
diff --git a/firmware/ositech/Xilinx7OD.bin.ihex b/firmware/ositech/Xilinx7OD.bin.ihex
deleted file mode 100644
index 03e80857a549..000000000000
--- a/firmware/ositech/Xilinx7OD.bin.ihex
+++ /dev/null
@@ -1,177 +0,0 @@
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-This file contains the firmware of Seven of Diamonds from OSITECH.
-(Special thanks to Kevin MacPherson of OSITECH)
diff --git a/firmware/qlogic/1040.bin.ihex b/firmware/qlogic/1040.bin.ihex
deleted file mode 100644
index d1213307f713..000000000000
--- a/firmware/qlogic/1040.bin.ihex
+++ /dev/null
@@ -1,2111 +0,0 @@
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-/**************************************************************************
- *                  QLOGIC LINUX SOFTWARE
- *
- * Copyright (C) 2004 QLogic Corporation
- * (www.qlogic.com)
- *
- *************************************************************************/
-
-/************************************************************************
- *									*
- * 	        --- ISP1040 Initiator/Target Firmware ---               *
- *			    32 LUN Support				*
- *									*
- ************************************************************************/
-
-/*
- *	Firmware Version 7.65.06 (14:38 Jan 07, 2002)
- */
diff --git a/firmware/qlogic/12160.bin.ihex b/firmware/qlogic/12160.bin.ihex
deleted file mode 100644
index dc800ecdaf3a..000000000000
--- a/firmware/qlogic/12160.bin.ihex
+++ /dev/null
@@ -1,1771 +0,0 @@
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-/*****************************************************************************
- *                  QLOGIC LINUX SOFTWARE
- *
- * QLogic ISP12160 device driver for Linux 2.2.x and 2.4.x
- * Copyright (C) 2002 Qlogic Corporation (www.qlogic.com)
- *
- *****************************************************************************/
-
-/************************************************************************
- * 	           --- ISP12160A Initiator Firmware ---                 *
- *			      32 LUN Support                            *
- ************************************************************************/
-
-/*
- *	Firmware Version 10.04.42 (15:44 Apr 18, 2003)
- */
diff --git a/firmware/qlogic/1280.bin.ihex b/firmware/qlogic/1280.bin.ihex
deleted file mode 100644
index 612c2633f8cd..000000000000
--- a/firmware/qlogic/1280.bin.ihex
+++ /dev/null
@@ -1,2008 +0,0 @@
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-/*****************************************************************************
- *                  QLOGIC LINUX SOFTWARE
- *
- * QLogic ISP1280/ device driver for Linux 2.2.x and 2.4.x
- * Copyright (C) 2001 Qlogic Corporation (www.qlogic.com)
- *
- *****************************************************************************/
-
-/************************************************************************
- * 	         --- ISP1240/1080/1280 Initiator Firmware ---           *
- *			      32 LUN Support				*
- ************************************************************************/
-
-/*
- *	Firmware Version 8.15.11 (10:20 Jan 02, 2002)
- */
diff --git a/firmware/qlogic/isp1000.bin.ihex b/firmware/qlogic/isp1000.bin.ihex
deleted file mode 100644
index a5c242cda220..000000000000
--- a/firmware/qlogic/isp1000.bin.ihex
+++ /dev/null
@@ -1,1158 +0,0 @@
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-/* Version 1.31.00 ISP1000 Initiator RISC firmware */
diff --git a/firmware/qlogic/sd7220.fw.ihex b/firmware/qlogic/sd7220.fw.ihex
deleted file mode 100644
index a33636319112..000000000000
--- a/firmware/qlogic/sd7220.fw.ihex
+++ /dev/null
@@ -1,513 +0,0 @@
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diff --git a/firmware/r128/r128_cce.bin.ihex b/firmware/r128/r128_cce.bin.ihex
deleted file mode 100644
index 4831315d7b99..000000000000
--- a/firmware/r128/r128_cce.bin.ihex
+++ /dev/null
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diff --git a/firmware/radeon/R200_cp.bin.ihex b/firmware/radeon/R200_cp.bin.ihex
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diff --git a/firmware/radeon/R300_cp.bin.ihex b/firmware/radeon/R300_cp.bin.ihex
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diff --git a/firmware/radeon/RS690_cp.bin.ihex b/firmware/radeon/RS690_cp.bin.ihex
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diff --git a/firmware/radeon/RS780_me.bin.ihex b/firmware/radeon/RS780_me.bin.ihex
deleted file mode 100644
index 6479c106b91f..000000000000
--- a/firmware/radeon/RS780_me.bin.ihex
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diff --git a/firmware/radeon/RS780_pfp.bin.ihex b/firmware/radeon/RS780_pfp.bin.ihex
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diff --git a/firmware/radeon/RV610_me.bin.ihex b/firmware/radeon/RV610_me.bin.ihex
deleted file mode 100644
index ba19ed892920..000000000000
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diff --git a/firmware/radeon/RV710_pfp.bin.ihex b/firmware/radeon/RV710_pfp.bin.ihex
deleted file mode 100644
index 3d811ff0a1a8..000000000000
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diff --git a/firmware/radeon/RV730_me.bin.ihex b/firmware/radeon/RV730_me.bin.ihex
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-/*
- *  Copyright (c) 1994 Creative Technology Ltd.
- *  Microcode files for SB16 Advanced Signal Processor
- */
diff --git a/firmware/sb16/ima_adpcm_capture.csp.ihex b/firmware/sb16/ima_adpcm_capture.csp.ihex
deleted file mode 100644
index 9a50a58564ae..000000000000
--- a/firmware/sb16/ima_adpcm_capture.csp.ihex
+++ /dev/null
@@ -1,121 +0,0 @@
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-/*
- *  Copyright (c) 1994 Creative Technology Ltd.
- *  Microcode files for SB16 Advanced Signal Processor
- */
diff --git a/firmware/sb16/ima_adpcm_init.csp.ihex b/firmware/sb16/ima_adpcm_init.csp.ihex
deleted file mode 100644
index a899a9e743f4..000000000000
--- a/firmware/sb16/ima_adpcm_init.csp.ihex
+++ /dev/null
@@ -1,70 +0,0 @@
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-/*
- *  Copyright (c) 1994 Creative Technology Ltd.
- *  Microcode files for SB16 Advanced Signal Processor
- */
diff --git a/firmware/sb16/ima_adpcm_playback.csp.ihex b/firmware/sb16/ima_adpcm_playback.csp.ihex
deleted file mode 100644
index f09f18cf35e2..000000000000
--- a/firmware/sb16/ima_adpcm_playback.csp.ihex
+++ /dev/null
@@ -1,122 +0,0 @@
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-:100730000000838020047A802001338000008380C1
-:1007400020007A80200300800000004616CE1100B1
-:00000001FF
-/*
- *  Copyright (c) 1994 Creative Technology Ltd.
- *  Microcode files for SB16 Advanced Signal Processor
- */
diff --git a/firmware/sb16/mulaw_main.csp.ihex b/firmware/sb16/mulaw_main.csp.ihex
deleted file mode 100644
index b64b565f2296..000000000000
--- a/firmware/sb16/mulaw_main.csp.ihex
+++ /dev/null
@@ -1,84 +0,0 @@
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-:1004D0000E00C80A0CE80454CE0004190000404580
-:0804E0002010718B093F070099
-:00000001FF
-/*
- *  Copyright (c) 1994 Creative Technology Ltd.
- *  Microcode files for SB16 Advanced Signal Processor
- */
diff --git a/firmware/sun/cassini.bin.ihex b/firmware/sun/cassini.bin.ihex
deleted file mode 100644
index 5cd7ae70e71f..000000000000
--- a/firmware/sun/cassini.bin.ihex
+++ /dev/null
@@ -1,143 +0,0 @@
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-/* firmware patch for NS_DP83065 */
diff --git a/firmware/tehuti/bdx.bin.ihex b/firmware/tehuti/bdx.bin.ihex
deleted file mode 100644
index b029e4c85795..000000000000
--- a/firmware/tehuti/bdx.bin.ihex
+++ /dev/null
@@ -1,2678 +0,0 @@
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-:00000001FF
-/* Loading Firmware */
-/* INT_MEM Ver */
- * Tehuti Networks(R) Network Driver
- * Copyright (C) 2007 Tehuti Networks Ltd. All rights reserved
diff --git a/firmware/ti_3410.fw.ihex b/firmware/ti_3410.fw.ihex
deleted file mode 100644
index b22c0425980e..000000000000
--- a/firmware/ti_3410.fw.ihex
+++ /dev/null
@@ -1,862 +0,0 @@
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diff --git a/firmware/ti_5052.fw.ihex b/firmware/ti_5052.fw.ihex
deleted file mode 100644
index b529e07cd6ec..000000000000
--- a/firmware/ti_5052.fw.ihex
+++ /dev/null
@@ -1,862 +0,0 @@
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diff --git a/firmware/tigon/tg3.bin.ihex b/firmware/tigon/tg3.bin.ihex
deleted file mode 100644
index d842d7cc91b5..000000000000
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- * Firmware is:
- *	Derived from proprietary unpublished source code,
- *	Copyright (C) 2000-2003 Broadcom Corporation.
- *
- *	Permission is hereby granted for the distribution of this firmware
- *	data in hexadecimal or equivalent format, provided this copyright
- *	notice is accompanying it.
diff --git a/firmware/tigon/tg3_tso.bin.ihex b/firmware/tigon/tg3_tso.bin.ihex
deleted file mode 100644
index f10c4ef90513..000000000000
--- a/firmware/tigon/tg3_tso.bin.ihex
+++ /dev/null
@@ -1,446 +0,0 @@
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- * Firmware is:
- *	Derived from proprietary unpublished source code,
- *	Copyright (C) 2000-2003 Broadcom Corporation.
- *
- *	Permission is hereby granted for the distribution of this firmware
- *	data in hexadecimal or equivalent format, provided this copyright
- *	notice is accompanying it.
diff --git a/firmware/tigon/tg3_tso5.bin.ihex b/firmware/tigon/tg3_tso5.bin.ihex
deleted file mode 100644
index 33672514eab3..000000000000
--- a/firmware/tigon/tg3_tso5.bin.ihex
+++ /dev/null
@@ -1,252 +0,0 @@
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-:00000001FF
- * Firmware is:
- *	Derived from proprietary unpublished source code,
- *	Copyright (C) 2000-2003 Broadcom Corporation.
- *
- *	Permission is hereby granted for the distribution of this firmware
- *	data in hexadecimal or equivalent format, provided this copyright
- *	notice is accompanying it.
-/* 5705 needs a special version of the TSO firmware.  */
diff --git a/firmware/ttusb-budget/dspbootcode.bin.ihex b/firmware/ttusb-budget/dspbootcode.bin.ihex
deleted file mode 100644
index b4b2247077c4..000000000000
--- a/firmware/ttusb-budget/dspbootcode.bin.ihex
+++ /dev/null
@@ -1,820 +0,0 @@
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diff --git a/firmware/vicam/firmware.H16 b/firmware/vicam/firmware.H16
deleted file mode 100644
index cac0cba68cc7..000000000000
--- a/firmware/vicam/firmware.H16
+++ /dev/null
@@ -1,7 +0,0 @@
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diff --git a/firmware/whiteheat.HEX b/firmware/whiteheat.HEX
deleted file mode 100644
index 8dae60295d55..000000000000
--- a/firmware/whiteheat.HEX
+++ /dev/null
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-/*****************************************************************************
- *
- *      whiteheat.h  --  ConnectTech WhiteHEAT Firmware.
- *
- *      Copyright (C) 2000-2002  ConnectTech Inc (http://www.connecttech.com/)
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (10/09/2002) Stuart MacDonald
- *	Firmware 4.06
- *
- * (04/09/2000) gkh
- *	Updated the firmware with the latest provided by ConnectTech.
- *
- * (01/16/2000) gkh
- *	Fixed my intel hex processing tool, so now the firmware actually
- *	matches the original file (this was causing a few problems...)
- *
- * (01/15/2000) gkh
- *	Added debug loader firmware if DEBUG is #defined:
- *		Port 1 LED flashes when the vend_ax program is running
- *		Port 2 LED flashes when any SETUP command arrives
- *		Port 3 LED flashes when any valid VENDOR request occurs
- *		Port 4 LED flashes when the EXTERNAL RAM DOWNLOAD request occurs
- *
- * version 1.0 (01/09/2000) gkh
- *	Original firmware from ConnectTech massaged a little to be program
- *	readable.
- *
- *****************************************************************************/
-
-#define whiteheat_DATE "20000106"
diff --git a/firmware/whiteheat_loader.HEX b/firmware/whiteheat_loader.HEX
deleted file mode 100644
index 5f663f6a2849..000000000000
--- a/firmware/whiteheat_loader.HEX
+++ /dev/null
@@ -1,314 +0,0 @@
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-/*****************************************************************************
- *
- *      whiteheat.h  --  ConnectTech WhiteHEAT Firmware.
- *
- *      Copyright (C) 2000-2002  ConnectTech Inc (http://www.connecttech.com/)
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (10/09/2002) Stuart MacDonald
- *	Firmware 4.06
- *
- * (04/09/2000) gkh
- *	Updated the firmware with the latest provided by ConnectTech.
- *
- * (01/16/2000) gkh
- *	Fixed my intel hex processing tool, so now the firmware actually
- *	matches the original file (this was causing a few problems...)
- *
- * (01/15/2000) gkh
- *	Added debug loader firmware if DEBUG is #defined:
- *		Port 1 LED flashes when the vend_ax program is running
- *		Port 2 LED flashes when any SETUP command arrives
- *		Port 3 LED flashes when any valid VENDOR request occurs
- *		Port 4 LED flashes when the EXTERNAL RAM DOWNLOAD request occurs
- *
- * version 1.0 (01/09/2000) gkh
- *	Original firmware from ConnectTech massaged a little to be program
- *	readable.
- *
- *****************************************************************************/
-
-#define whiteheat_DATE "20000106"
diff --git a/firmware/whiteheat_loader_debug.HEX b/firmware/whiteheat_loader_debug.HEX
deleted file mode 100644
index 5633d588613e..000000000000
--- a/firmware/whiteheat_loader_debug.HEX
+++ /dev/null
@@ -1,403 +0,0 @@
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-/*****************************************************************************
- *
- *      whiteheat.h  --  ConnectTech WhiteHEAT Firmware.
- *
- *      Copyright (C) 2000-2002  ConnectTech Inc (http://www.connecttech.com/)
- *
- *      This program is free software; you can redistribute it and/or modify
- *      it under the terms of the GNU General Public License as published by
- *      the Free Software Foundation; either version 2 of the License, or
- *      (at your option) any later version.
- *
- *      This program is distributed in the hope that it will be useful,
- *      but WITHOUT ANY WARRANTY; without even the implied warranty of
- *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *      GNU General Public License for more details.
- *
- *      You should have received a copy of the GNU General Public License
- *      along with this program; if not, write to the Free Software
- *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * (10/09/2002) Stuart MacDonald
- *	Firmware 4.06
- *
- * (04/09/2000) gkh
- *	Updated the firmware with the latest provided by ConnectTech.
- *
- * (01/16/2000) gkh
- *	Fixed my intel hex processing tool, so now the firmware actually
- *	matches the original file (this was causing a few problems...)
- *
- * (01/15/2000) gkh
- *	Added debug loader firmware if DEBUG is #defined:
- *		Port 1 LED flashes when the vend_ax program is running
- *		Port 2 LED flashes when any SETUP command arrives
- *		Port 3 LED flashes when any valid VENDOR request occurs
- *		Port 4 LED flashes when the EXTERNAL RAM DOWNLOAD request occurs
- *
- * version 1.0 (01/09/2000) gkh
- *	Original firmware from ConnectTech massaged a little to be program
- *	readable.
- *
- *****************************************************************************/
-
-#define whiteheat_DATE "20000106"
diff --git a/firmware/yam/1200.bin.ihex b/firmware/yam/1200.bin.ihex
deleted file mode 100644
index 9d34e5680e38..000000000000
--- a/firmware/yam/1200.bin.ihex
+++ /dev/null
@@ -1,342 +0,0 @@
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-/*
- *
- * File yam1k2b5.mcs converted to h format by mcs2h
- *
- * (C) F6FBB 1998
- *
- * Tue Aug 25 20:24:08 1998
- *
- */
diff --git a/firmware/yam/9600.bin.ihex b/firmware/yam/9600.bin.ihex
deleted file mode 100644
index 817a34be22cc..000000000000
--- a/firmware/yam/9600.bin.ihex
+++ /dev/null
@@ -1,342 +0,0 @@
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-/*
- *
- * File yam111.mcs converted to h format by mcs2h
- *
- * (C) F6FBB 1998
- *
- * Tue Aug 25 20:23:03 1998
- *
- */
diff --git a/firmware/yamaha/ds1_ctrl.fw.ihex b/firmware/yamaha/ds1_ctrl.fw.ihex
deleted file mode 100644
index aa9b1d7dcb0b..000000000000
--- a/firmware/yamaha/ds1_ctrl.fw.ihex
+++ /dev/null
@@ -1,769 +0,0 @@
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diff --git a/firmware/yamaha/ds1_dsp.fw.ihex b/firmware/yamaha/ds1_dsp.fw.ihex
deleted file mode 100644
index acb0ba48f112..000000000000
--- a/firmware/yamaha/ds1_dsp.fw.ihex
+++ /dev/null
@@ -1,9 +0,0 @@
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diff --git a/firmware/yamaha/ds1e_ctrl.fw.ihex b/firmware/yamaha/ds1e_ctrl.fw.ihex
deleted file mode 100644
index 597f429ee31a..000000000000
--- a/firmware/yamaha/ds1e_ctrl.fw.ihex
+++ /dev/null
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diff --git a/firmware/yamaha/yss225_registers.bin.ihex b/firmware/yamaha/yss225_registers.bin.ihex
deleted file mode 100644
index 6dd3d8c4de2b..000000000000
--- a/firmware/yamaha/yss225_registers.bin.ihex
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-:103E30000A4E0D0F0CD70B070A4C0D0F0CFF0B078A
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diff --git a/fs/9p/Makefile b/fs/9p/Makefile
index 9619ccadd2fc..e7800a5c7395 100644
--- a/fs/9p/Makefile
+++ b/fs/9p/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_9P_FS) := 9p.o
 
 9p-objs := \
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index adaf6f6dd858..e1cbdfdb7c68 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -310,9 +310,13 @@ static int v9fs_write_end(struct file *filp, struct address_space *mapping,
 
 	p9_debug(P9_DEBUG_VFS, "filp %p, mapping %p\n", filp, mapping);
 
-	if (unlikely(copied < len && !PageUptodate(page))) {
-		copied = 0;
-		goto out;
+	if (!PageUptodate(page)) {
+		if (unlikely(copied < len)) {
+			copied = 0;
+			goto out;
+		} else if (len == PAGE_SIZE) {
+			SetPageUptodate(page);
+		}
 	}
 	/*
 	 * No need to use i_size_read() here, the i_size
diff --git a/fs/Makefile b/fs/Makefile
index 7bbaca9c67b1..ef772f1eaff8 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux filesystems.
 #
diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index fadf408bdd46..c76db75f02aa 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fs.h>
 #include <linux/adfs_fs.h>
 
diff --git a/fs/adfs/file.c b/fs/adfs/file.c
index 46c0d5671cd5..754afb14a6ff 100644
--- a/fs/adfs/file.c
+++ b/fs/adfs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/adfs/file.c
  *
diff --git a/fs/affs/affs.h b/fs/affs/affs.h
index 773749be8290..a92eb6ae2ae2 100644
--- a/fs/affs/affs.h
+++ b/fs/affs/affs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef pr_fmt
 #undef pr_fmt
 #endif
diff --git a/fs/affs/amigaffs.c b/fs/affs/amigaffs.c
index b573c3b9a328..185d5ab7e986 100644
--- a/fs/affs/amigaffs.c
+++ b/fs/affs/amigaffs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/amigaffs.c
  *
@@ -450,7 +451,7 @@ affs_error(struct super_block *sb, const char *function, const char *fmt, ...)
 	vaf.fmt = fmt;
 	vaf.va = &args;
 	pr_crit("error (device %s): %s(): %pV\n", sb->s_id, function, &vaf);
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		pr_warn("Remounting filesystem read-only\n");
 	sb->s_flags |= MS_RDONLY;
 	va_end(args);
diff --git a/fs/affs/amigaffs.h b/fs/affs/amigaffs.h
index 43b41c06aa37..f9bef9056659 100644
--- a/fs/affs/amigaffs.h
+++ b/fs/affs/amigaffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AMIGAFFS_H
 #define AMIGAFFS_H
 
diff --git a/fs/affs/bitmap.c b/fs/affs/bitmap.c
index 675148950fed..2b1399611d9e 100644
--- a/fs/affs/bitmap.c
+++ b/fs/affs/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/bitmap.c
  *
@@ -19,7 +20,7 @@ affs_count_free_blocks(struct super_block *sb)
 
 	pr_debug("%s()\n", __func__);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	mutex_lock(&AFFS_SB(sb)->s_bmlock);
diff --git a/fs/affs/dir.c b/fs/affs/dir.c
index 591ecd7f3063..a105e77df2c1 100644
--- a/fs/affs/dir.c
+++ b/fs/affs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/dir.c
  *
diff --git a/fs/affs/file.c b/fs/affs/file.c
index 00331810f690..a85817f54483 100644
--- a/fs/affs/file.c
+++ b/fs/affs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/file.c
  *
diff --git a/fs/affs/inode.c b/fs/affs/inode.c
index fd4ef3c40e40..73598bff8506 100644
--- a/fs/affs/inode.c
+++ b/fs/affs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/inode.c
  *
diff --git a/fs/affs/namei.c b/fs/affs/namei.c
index 46d3ace6761d..d8aa0ae3d037 100644
--- a/fs/affs/namei.c
+++ b/fs/affs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/namei.c
  *
diff --git a/fs/affs/super.c b/fs/affs/super.c
index 7bf47a41cb4f..884bedab7266 100644
--- a/fs/affs/super.c
+++ b/fs/affs/super.c
@@ -80,7 +80,7 @@ void affs_mark_sb_dirty(struct super_block *sb)
 	struct affs_sb_info *sbi = AFFS_SB(sb);
 	unsigned long delay;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 	       return;
 
 	spin_lock(&sbi->work_lock);
@@ -464,7 +464,7 @@ got_root:
 	 * not recommended.
 	 */
 	if ((chksum == FS_DCFFS || chksum == MUFS_DCFFS || chksum == FS_DCOFS
-	     || chksum == MUFS_DCOFS) && !(sb->s_flags & MS_RDONLY)) {
+	     || chksum == MUFS_DCOFS) && !sb_rdonly(sb)) {
 		pr_notice("Dircache FS - mounting %s read only\n", sb->s_id);
 		sb->s_flags |= MS_RDONLY;
 	}
@@ -596,7 +596,7 @@ affs_remount(struct super_block *sb, int *flags, char *data)
 	memcpy(sbi->s_volume, volume, 32);
 	spin_unlock(&sbi->symlink_lock);
 
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		return 0;
 
 	if (*flags & MS_RDONLY)
diff --git a/fs/affs/symlink.c b/fs/affs/symlink.c
index ae622cdce142..a7531b26e8f0 100644
--- a/fs/affs/symlink.c
+++ b/fs/affs/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/affs/symlink.c
  *
diff --git a/fs/afs/Makefile b/fs/afs/Makefile
index 095c54165dfd..641148208e90 100644
--- a/fs/afs/Makefile
+++ b/fs/afs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Red Hat Linux AFS client.
 #
diff --git a/fs/afs/netdevices.c b/fs/afs/netdevices.c
index 40b2bab3e401..50bd5bb1c4fb 100644
--- a/fs/afs/netdevices.c
+++ b/fs/afs/netdevices.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* AFS network device helpers
  *
  * Copyright (c) 2007 Patrick McHardy <kaber@trash.net>
diff --git a/fs/aio.c b/fs/aio.c
index b5d69f28d8b1..e6de7715228c 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -576,7 +576,7 @@ static int kiocb_cancel(struct aio_kiocb *kiocb)
 	 * actually has a cancel function, hence the cmpxchg()
 	 */
 
-	cancel = ACCESS_ONCE(kiocb->ki_cancel);
+	cancel = READ_ONCE(kiocb->ki_cancel);
 	do {
 		if (!cancel || cancel == KIOCB_CANCELLED)
 			return -EINVAL;
@@ -1606,12 +1606,6 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
 		goto out_put_req;
 	}
 
-	if ((req->common.ki_flags & IOCB_NOWAIT) &&
-			!(req->common.ki_flags & IOCB_DIRECT)) {
-		ret = -EOPNOTSUPP;
-		goto out_put_req;
-	}
-
 	ret = put_user(KIOCB_KEY, &user_iocb->aio_key);
 	if (unlikely(ret)) {
 		pr_debug("EFAULT: aio_key\n");
diff --git a/fs/attr.c b/fs/attr.c
index 135304146120..12ffdb6fb63c 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/attr.c
  *
diff --git a/fs/autofs4/waitq.c b/fs/autofs4/waitq.c
index 24a58bf9ca72..4ac49d038bf3 100644
--- a/fs/autofs4/waitq.c
+++ b/fs/autofs4/waitq.c
@@ -56,19 +56,14 @@ static int autofs4_write(struct autofs_sb_info *sbi,
 			 struct file *file, const void *addr, int bytes)
 {
 	unsigned long sigpipe, flags;
-	mm_segment_t fs;
 	const char *data = (const char *)addr;
 	ssize_t wr = 0;
 
 	sigpipe = sigismember(&current->pending.signal, SIGPIPE);
 
-	/* Save pointer to user space and point back to kernel space */
-	fs = get_fs();
-	set_fs(KERNEL_DS);
-
 	mutex_lock(&sbi->pipe_mutex);
 	while (bytes) {
-		wr = __vfs_write(file, data, bytes, &file->f_pos);
+		wr = __kernel_write(file, data, bytes, &file->f_pos);
 		if (wr <= 0)
 			break;
 		data += wr;
@@ -76,8 +71,6 @@ static int autofs4_write(struct autofs_sb_info *sbi,
 	}
 	mutex_unlock(&sbi->pipe_mutex);
 
-	set_fs(fs);
-
 	/* Keep the currently executing process from receiving a
 	 * SIGPIPE unless it was already supposed to get one
 	 */
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index bb53728c7a31..213b51dbbb60 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/bad_inode.c
  *
diff --git a/fs/befs/befs.h b/fs/befs/befs.h
index b914cfb03820..7cd47245694d 100644
--- a/fs/befs/befs.h
+++ b/fs/befs/befs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * befs.h
  *
diff --git a/fs/befs/befs_fs_types.h b/fs/befs/befs_fs_types.h
index 69c9d8cde955..8019fde814b7 100644
--- a/fs/befs/befs_fs_types.h
+++ b/fs/befs/befs_fs_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fs/befs/befs_fs_types.h
  *
diff --git a/fs/befs/btree.h b/fs/befs/btree.h
index 60c6c728e64e..a253a6276d8e 100644
--- a/fs/befs/btree.h
+++ b/fs/befs/btree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * btree.h
  *
diff --git a/fs/befs/datastream.c b/fs/befs/datastream.c
index 720b3bc5c16a..97719a7c7e40 100644
--- a/fs/befs/datastream.c
+++ b/fs/befs/datastream.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/befs/datastream.c
  *
diff --git a/fs/befs/datastream.h b/fs/befs/datastream.h
index 7ff9ff09ec6e..39b1d4766ccf 100644
--- a/fs/befs/datastream.h
+++ b/fs/befs/datastream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * datastream.h
  *
diff --git a/fs/befs/debug.c b/fs/befs/debug.c
index 36656c86f50e..eb7bd6c692c7 100644
--- a/fs/befs/debug.c
+++ b/fs/befs/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/befs/debug.c
  *
diff --git a/fs/befs/endian.h b/fs/befs/endian.h
index 27223878ba9f..bb55a54c24c0 100644
--- a/fs/befs/endian.h
+++ b/fs/befs/endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/befs/endian.h
  *
diff --git a/fs/befs/inode.c b/fs/befs/inode.c
index 5367a6470a69..791b46a6f2f9 100644
--- a/fs/befs/inode.c
+++ b/fs/befs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * inode.c
  *
diff --git a/fs/befs/io.c b/fs/befs/io.c
index 227cb86e07fe..2caf50a4abbe 100644
--- a/fs/befs/io.c
+++ b/fs/befs/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/befs/io.c
  *
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index 4a4a5a366158..a92355cc453b 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -838,7 +838,7 @@ befs_fill_super(struct super_block *sb, void *data, int silent)
 
 	befs_debug(sb, "---> %s", __func__);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		befs_warning(sb,
 			     "No write support. Marking filesystem read-only");
 		sb->s_flags |= MS_RDONLY;
diff --git a/fs/bfs/bfs.h b/fs/bfs/bfs.h
index f40006db36df..67aef3bb89e4 100644
--- a/fs/bfs/bfs.h
+++ b/fs/bfs/bfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	fs/bfs/bfs.h
  *	Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
diff --git a/fs/bfs/dir.c b/fs/bfs/dir.c
index 3e5ac30e8b6f..ee832ca5f734 100644
--- a/fs/bfs/dir.c
+++ b/fs/bfs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	fs/bfs/dir.c
  *	BFS directory operations.
diff --git a/fs/bfs/file.c b/fs/bfs/file.c
index 97f1b5160155..1476cdd90cfb 100644
--- a/fs/bfs/file.c
+++ b/fs/bfs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	fs/bfs/file.c
  *	BFS file operations.
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 9be82c4e14a4..ce1824f47ba6 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -341,11 +341,12 @@ static int load_aout_library(struct file *file)
 	unsigned long error;
 	int retval;
 	struct exec ex;
+	loff_t pos = 0;
 
 	inode = file_inode(file);
 
 	retval = -ENOEXEC;
-	error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
+	error = kernel_read(file, &ex, sizeof(ex), &pos);
 	if (error != sizeof(ex))
 		goto out;
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index ec45d24875b1..73b01e474fdc 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -409,6 +409,7 @@ static struct elf_phdr *load_elf_phdrs(struct elfhdr *elf_ex,
 {
 	struct elf_phdr *elf_phdata = NULL;
 	int retval, size, err = -1;
+	loff_t pos = elf_ex->e_phoff;
 
 	/*
 	 * If the size of this structure has changed, then punt, since
@@ -432,8 +433,7 @@ static struct elf_phdr *load_elf_phdrs(struct elfhdr *elf_ex,
 		goto out;
 
 	/* Read in the program headers */
-	retval = kernel_read(elf_file, elf_ex->e_phoff,
-			     (char *)elf_phdata, size);
+	retval = kernel_read(elf_file, elf_phdata, size, &pos);
 	if (retval != size) {
 		err = (retval < 0) ? retval : -EIO;
 		goto out;
@@ -698,6 +698,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		struct elfhdr interp_elf_ex;
 	} *loc;
 	struct arch_elf_state arch_state = INIT_ARCH_ELF_STATE;
+	loff_t pos;
 
 	loc = kmalloc(sizeof(*loc), GFP_KERNEL);
 	if (!loc) {
@@ -750,9 +751,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
 			if (!elf_interpreter)
 				goto out_free_ph;
 
-			retval = kernel_read(bprm->file, elf_ppnt->p_offset,
-					     elf_interpreter,
-					     elf_ppnt->p_filesz);
+			pos = elf_ppnt->p_offset;
+			retval = kernel_read(bprm->file, elf_interpreter,
+					     elf_ppnt->p_filesz, &pos);
 			if (retval != elf_ppnt->p_filesz) {
 				if (retval >= 0)
 					retval = -EIO;
@@ -776,9 +777,9 @@ static int load_elf_binary(struct linux_binprm *bprm)
 			would_dump(bprm, interpreter);
 
 			/* Get the exec headers */
-			retval = kernel_read(interpreter, 0,
-					     (void *)&loc->interp_elf_ex,
-					     sizeof(loc->interp_elf_ex));
+			pos = 0;
+			retval = kernel_read(interpreter, &loc->interp_elf_ex,
+					     sizeof(loc->interp_elf_ex), &pos);
 			if (retval != sizeof(loc->interp_elf_ex)) {
 				if (retval >= 0)
 					retval = -EIO;
@@ -1175,9 +1176,10 @@ static int load_elf_library(struct file *file)
 	unsigned long elf_bss, bss, len;
 	int retval, error, i, j;
 	struct elfhdr elf_ex;
+	loff_t pos = 0;
 
 	error = -ENOEXEC;
-	retval = kernel_read(file, 0, (char *)&elf_ex, sizeof(elf_ex));
+	retval = kernel_read(file, &elf_ex, sizeof(elf_ex), &pos);
 	if (retval != sizeof(elf_ex))
 		goto out;
 
@@ -1201,7 +1203,8 @@ static int load_elf_library(struct file *file)
 
 	eppnt = elf_phdata;
 	error = -ENOEXEC;
-	retval = kernel_read(file, elf_ex.e_phoff, (char *)eppnt, j);
+	pos =  elf_ex.e_phoff;
+	retval = kernel_read(file, eppnt, j, &pos);
 	if (retval != j)
 		goto out_free_ph;
 
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 5aa9199dfb13..e70c039ac190 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -145,6 +145,7 @@ static int elf_fdpic_fetch_phdrs(struct elf_fdpic_params *params,
 	struct elf32_phdr *phdr;
 	unsigned long size;
 	int retval, loop;
+	loff_t pos = params->hdr.e_phoff;
 
 	if (params->hdr.e_phentsize != sizeof(struct elf_phdr))
 		return -ENOMEM;
@@ -156,8 +157,7 @@ static int elf_fdpic_fetch_phdrs(struct elf_fdpic_params *params,
 	if (!params->phdrs)
 		return -ENOMEM;
 
-	retval = kernel_read(file, params->hdr.e_phoff,
-			     (char *) params->phdrs, size);
+	retval = kernel_read(file, params->phdrs, size, &pos);
 	if (unlikely(retval != size))
 		return retval < 0 ? retval : -ENOEXEC;
 
@@ -199,6 +199,7 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
 	char *interpreter_name = NULL;
 	int executable_stack;
 	int retval, i;
+	loff_t pos;
 
 	kdebug("____ LOAD %d ____", current->pid);
 
@@ -246,10 +247,9 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
 			if (!interpreter_name)
 				goto error;
 
-			retval = kernel_read(bprm->file,
-					     phdr->p_offset,
-					     interpreter_name,
-					     phdr->p_filesz);
+			pos = phdr->p_offset;
+			retval = kernel_read(bprm->file, interpreter_name,
+					     phdr->p_filesz, &pos);
 			if (unlikely(retval != phdr->p_filesz)) {
 				if (retval >= 0)
 					retval = -ENOEXEC;
@@ -277,8 +277,9 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm)
 			 */
 			would_dump(bprm, interpreter);
 
-			retval = kernel_read(interpreter, 0, bprm->buf,
-					     BINPRM_BUF_SIZE);
+			pos = 0;
+			retval = kernel_read(interpreter, bprm->buf,
+					BINPRM_BUF_SIZE, &pos);
 			if (unlikely(retval != BINPRM_BUF_SIZE)) {
 				if (retval >= 0)
 					retval = -ENOEXEC;
diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index ce6537c50ec1..5d6b94475f27 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /****************************************************************************/
 /*
  *  linux/fs/binfmt_flat.c
@@ -176,19 +177,14 @@ static int create_flat_tables(struct linux_binprm *bprm, unsigned long arg_start
 #define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
 #define RESERVED     0xC0 /* bit 6,7:   reserved */
 
-static int decompress_exec(
-	struct linux_binprm *bprm,
-	unsigned long offset,
-	char *dst,
-	long len,
-	int fd)
+static int decompress_exec(struct linux_binprm *bprm, loff_t fpos, char *dst,
+		long len, int fd)
 {
 	unsigned char *buf;
 	z_stream strm;
-	loff_t fpos;
 	int ret, retval;
 
-	pr_debug("decompress_exec(offset=%lx,buf=%p,len=%lx)\n", offset, dst, len);
+	pr_debug("decompress_exec(offset=%llx,buf=%p,len=%lx)\n", fpos, dst, len);
 
 	memset(&strm, 0, sizeof(strm));
 	strm.workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
@@ -202,13 +198,11 @@ static int decompress_exec(
 	}
 
 	/* Read in first chunk of data and parse gzip header. */
-	fpos = offset;
-	ret = kernel_read(bprm->file, offset, buf, LBUFSIZE);
+	ret = kernel_read(bprm->file, buf, LBUFSIZE, &fpos);
 
 	strm.next_in = buf;
 	strm.avail_in = ret;
 	strm.total_in = 0;
-	fpos += ret;
 
 	retval = -ENOEXEC;
 
@@ -274,7 +268,7 @@ static int decompress_exec(
 	}
 
 	while ((ret = zlib_inflate(&strm, Z_NO_FLUSH)) == Z_OK) {
-		ret = kernel_read(bprm->file, fpos, buf, LBUFSIZE);
+		ret = kernel_read(bprm->file, buf, LBUFSIZE, &fpos);
 		if (ret <= 0)
 			break;
 		len -= ret;
@@ -282,7 +276,6 @@ static int decompress_exec(
 		strm.next_in = buf;
 		strm.avail_in = ret;
 		strm.total_in = 0;
-		fpos += ret;
 	}
 
 	if (ret < 0) {
diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c
index f4718098ac31..a7c5a9861bef 100644
--- a/fs/binfmt_misc.c
+++ b/fs/binfmt_misc.c
@@ -54,7 +54,7 @@ typedef struct {
 	int size;			/* size of magic/mask */
 	char *magic;			/* magic or filename extension */
 	char *mask;			/* mask, NULL for exact match */
-	char *interpreter;		/* filename of interpreter */
+	const char *interpreter;	/* filename of interpreter */
 	char *name;
 	struct dentry *dentry;
 	struct file *interp_file;
@@ -131,27 +131,26 @@ static int load_misc_binary(struct linux_binprm *bprm)
 {
 	Node *fmt;
 	struct file *interp_file = NULL;
-	char iname[BINPRM_BUF_SIZE];
-	const char *iname_addr = iname;
 	int retval;
 	int fd_binary = -1;
 
 	retval = -ENOEXEC;
 	if (!enabled)
-		goto ret;
+		return retval;
 
 	/* to keep locking time low, we copy the interpreter string */
 	read_lock(&entries_lock);
 	fmt = check_file(bprm);
 	if (fmt)
-		strlcpy(iname, fmt->interpreter, BINPRM_BUF_SIZE);
+		dget(fmt->dentry);
 	read_unlock(&entries_lock);
 	if (!fmt)
-		goto ret;
+		return retval;
 
 	/* Need to be able to load the file after exec */
+	retval = -ENOENT;
 	if (bprm->interp_flags & BINPRM_FLAGS_PATH_INACCESSIBLE)
-		return -ENOENT;
+		goto ret;
 
 	if (!(fmt->flags & MISC_FMT_PRESERVE_ARGV0)) {
 		retval = remove_arg_zero(bprm);
@@ -195,22 +194,22 @@ static int load_misc_binary(struct linux_binprm *bprm)
 	bprm->argc++;
 
 	/* add the interp as argv[0] */
-	retval = copy_strings_kernel(1, &iname_addr, bprm);
+	retval = copy_strings_kernel(1, &fmt->interpreter, bprm);
 	if (retval < 0)
 		goto error;
 	bprm->argc++;
 
 	/* Update interp in case binfmt_script needs it. */
-	retval = bprm_change_interp(iname, bprm);
+	retval = bprm_change_interp(fmt->interpreter, bprm);
 	if (retval < 0)
 		goto error;
 
-	if (fmt->flags & MISC_FMT_OPEN_FILE && fmt->interp_file) {
+	if (fmt->flags & MISC_FMT_OPEN_FILE) {
 		interp_file = filp_clone_open(fmt->interp_file);
 		if (!IS_ERR(interp_file))
 			deny_write_access(interp_file);
 	} else {
-		interp_file = open_exec(iname);
+		interp_file = open_exec(fmt->interpreter);
 	}
 	retval = PTR_ERR(interp_file);
 	if (IS_ERR(interp_file))
@@ -218,12 +217,15 @@ static int load_misc_binary(struct linux_binprm *bprm)
 
 	bprm->file = interp_file;
 	if (fmt->flags & MISC_FMT_CREDENTIALS) {
+		loff_t pos = 0;
+
 		/*
 		 * No need to call prepare_binprm(), it's already been
 		 * done.  bprm->buf is stale, update from interp_file.
 		 */
 		memset(bprm->buf, 0, BINPRM_BUF_SIZE);
-		retval = kernel_read(bprm->file, 0, bprm->buf, BINPRM_BUF_SIZE);
+		retval = kernel_read(bprm->file, bprm->buf, BINPRM_BUF_SIZE,
+				&pos);
 	} else
 		retval = prepare_binprm(bprm);
 
@@ -235,6 +237,7 @@ static int load_misc_binary(struct linux_binprm *bprm)
 		goto error;
 
 ret:
+	dput(fmt->dentry);
 	return retval;
 error:
 	if (fd_binary > 0)
@@ -591,8 +594,13 @@ static struct inode *bm_get_inode(struct super_block *sb, int mode)
 
 static void bm_evict_inode(struct inode *inode)
 {
+	Node *e = inode->i_private;
+
+	if (e && e->flags & MISC_FMT_OPEN_FILE)
+		filp_close(e->interp_file, NULL);
+
 	clear_inode(inode);
-	kfree(inode->i_private);
+	kfree(e);
 }
 
 static void kill_node(Node *e)
@@ -600,24 +608,14 @@ static void kill_node(Node *e)
 	struct dentry *dentry;
 
 	write_lock(&entries_lock);
-	dentry = e->dentry;
-	if (dentry) {
-		list_del_init(&e->list);
-		e->dentry = NULL;
-	}
+	list_del_init(&e->list);
 	write_unlock(&entries_lock);
 
-	if ((e->flags & MISC_FMT_OPEN_FILE) && e->interp_file) {
-		filp_close(e->interp_file, NULL);
-		e->interp_file = NULL;
-	}
-
-	if (dentry) {
-		drop_nlink(d_inode(dentry));
-		d_drop(dentry);
-		dput(dentry);
-		simple_release_fs(&bm_mnt, &entry_count);
-	}
+	dentry = e->dentry;
+	drop_nlink(d_inode(dentry));
+	d_drop(dentry);
+	dput(dentry);
+	simple_release_fs(&bm_mnt, &entry_count);
 }
 
 /* /<entry> */
@@ -662,7 +660,8 @@ static ssize_t bm_entry_write(struct file *file, const char __user *buffer,
 		root = file_inode(file)->i_sb->s_root;
 		inode_lock(d_inode(root));
 
-		kill_node(e);
+		if (!list_empty(&e->list))
+			kill_node(e);
 
 		inode_unlock(d_inode(root));
 		break;
@@ -791,7 +790,7 @@ static ssize_t bm_status_write(struct file *file, const char __user *buffer,
 		inode_lock(d_inode(root));
 
 		while (!list_empty(&entries))
-			kill_node(list_entry(entries.next, Node, list));
+			kill_node(list_first_entry(&entries, Node, list));
 
 		inode_unlock(d_inode(root));
 		break;
diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
index afdf4e3cafc2..7cde3f46ad26 100644
--- a/fs/binfmt_script.c
+++ b/fs/binfmt_script.c
@@ -19,7 +19,6 @@ static int load_script(struct linux_binprm *bprm)
 	const char *i_arg, *i_name;
 	char *cp;
 	struct file *file;
-	char interp[BINPRM_BUF_SIZE];
 	int retval;
 
 	if ((bprm->buf[0] != '#') || (bprm->buf[1] != '!'))
@@ -55,7 +54,7 @@ static int load_script(struct linux_binprm *bprm)
 			break;
 	}
 	for (cp = bprm->buf+2; (*cp == ' ') || (*cp == '\t'); cp++);
-	if (*cp == '\0') 
+	if (*cp == '\0')
 		return -ENOEXEC; /* No interpreter name found */
 	i_name = cp;
 	i_arg = NULL;
@@ -65,7 +64,6 @@ static int load_script(struct linux_binprm *bprm)
 		*cp++ = '\0';
 	if (*cp)
 		i_arg = cp;
-	strcpy (interp, i_name);
 	/*
 	 * OK, we've parsed out the interpreter name and
 	 * (optional) argument.
@@ -80,24 +78,27 @@ static int load_script(struct linux_binprm *bprm)
 	if (retval)
 		return retval;
 	retval = copy_strings_kernel(1, &bprm->interp, bprm);
-	if (retval < 0) return retval; 
+	if (retval < 0)
+		return retval;
 	bprm->argc++;
 	if (i_arg) {
 		retval = copy_strings_kernel(1, &i_arg, bprm);
-		if (retval < 0) return retval; 
+		if (retval < 0)
+			return retval;
 		bprm->argc++;
 	}
 	retval = copy_strings_kernel(1, &i_name, bprm);
-	if (retval) return retval; 
+	if (retval)
+		return retval;
 	bprm->argc++;
-	retval = bprm_change_interp(interp, bprm);
+	retval = bprm_change_interp(i_name, bprm);
 	if (retval < 0)
 		return retval;
 
 	/*
 	 * OK, now restart the process with the interpreter's dentry.
 	 */
-	file = open_exec(interp);
+	file = open_exec(i_name);
 	if (IS_ERR(file))
 		return PTR_ERR(file);
 
diff --git a/fs/block_dev.c b/fs/block_dev.c
index bb715b2fcfb8..4a181fcb5175 100644
--- a/fs/block_dev.c
+++ b/fs/block_dev.c
@@ -54,18 +54,6 @@ struct block_device *I_BDEV(struct inode *inode)
 }
 EXPORT_SYMBOL(I_BDEV);
 
-void __vfs_msg(struct super_block *sb, const char *prefix, const char *fmt, ...)
-{
-	struct va_format vaf;
-	va_list args;
-
-	va_start(args, fmt);
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	printk_ratelimited("%sVFS (%s): %pV\n", prefix, sb->s_id, &vaf);
-	va_end(args);
-}
-
 static void bdev_write_inode(struct block_device *bdev)
 {
 	struct inode *inode = bdev->bd_inode;
@@ -249,7 +237,7 @@ __blkdev_direct_IO_simple(struct kiocb *iocb, struct iov_iter *iter,
 		if (!READ_ONCE(bio.bi_private))
 			break;
 		if (!(iocb->ki_flags & IOCB_HIPRI) ||
-		    !blk_mq_poll(bdev_get_queue(bdev), qc))
+		    !blk_poll(bdev_get_queue(bdev), qc))
 			io_schedule();
 	}
 	__set_current_state(TASK_RUNNING);
@@ -414,7 +402,7 @@ __blkdev_direct_IO(struct kiocb *iocb, struct iov_iter *iter, int nr_pages)
 			break;
 
 		if (!(iocb->ki_flags & IOCB_HIPRI) ||
-		    !blk_mq_poll(bdev_get_queue(bdev), qc))
+		    !blk_poll(bdev_get_queue(bdev), qc))
 			io_schedule();
 	}
 	__set_current_state(TASK_RUNNING);
@@ -674,7 +662,7 @@ int bdev_read_page(struct block_device *bdev, sector_t sector,
 	if (!ops->rw_page || bdev_get_integrity(bdev))
 		return result;
 
-	result = blk_queue_enter(bdev->bd_queue, false);
+	result = blk_queue_enter(bdev->bd_queue, 0);
 	if (result)
 		return result;
 	result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, false);
@@ -710,16 +698,18 @@ int bdev_write_page(struct block_device *bdev, sector_t sector,
 
 	if (!ops->rw_page || bdev_get_integrity(bdev))
 		return -EOPNOTSUPP;
-	result = blk_queue_enter(bdev->bd_queue, false);
+	result = blk_queue_enter(bdev->bd_queue, 0);
 	if (result)
 		return result;
 
 	set_page_writeback(page);
 	result = ops->rw_page(bdev, sector + get_start_sect(bdev), page, true);
-	if (result)
+	if (result) {
 		end_page_writeback(page);
-	else
+	} else {
+		clean_page_buffers(page);
 		unlock_page(page);
+	}
 	blk_queue_exit(bdev->bd_queue);
 	return result;
 }
@@ -1740,6 +1730,8 @@ static int blkdev_open(struct inode * inode, struct file * filp)
 	 */
 	filp->f_flags |= O_LARGEFILE;
 
+	filp->f_mode |= FMODE_NOWAIT;
+
 	if (filp->f_flags & O_NDELAY)
 		filp->f_mode |= FMODE_NDELAY;
 	if (filp->f_flags & O_EXCL)
@@ -1892,6 +1884,9 @@ ssize_t blkdev_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	if (iocb->ki_pos >= size)
 		return -ENOSPC;
 
+	if ((iocb->ki_flags & (IOCB_NOWAIT | IOCB_DIRECT)) == IOCB_NOWAIT)
+		return -EOPNOTSUPP;
+
 	iov_iter_truncate(from, size - iocb->ki_pos);
 
 	blk_start_plug(&plug);
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 80e9c18ea64f..2e558227931a 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -6,6 +6,8 @@ config BTRFS_FS
 	select ZLIB_DEFLATE
 	select LZO_COMPRESS
 	select LZO_DECOMPRESS
+	select ZSTD_COMPRESS
+	select ZSTD_DECOMPRESS
 	select RAID6_PQ
 	select XOR_BLOCKS
 	select SRCU
@@ -89,3 +91,14 @@ config BTRFS_ASSERT
 	  any of the assertions trip.  This is meant for btrfs developers only.
 
 	  If unsure, say N.
+
+config BTRFS_FS_REF_VERIFY
+	bool "Btrfs with the ref verify tool compiled in"
+	depends on BTRFS_FS
+	default n
+	help
+	  Enable run-time extent reference verification instrumentation.  This
+	  is meant to be used by btrfs developers for tracking down extent
+	  reference problems or verifying they didn't break something.
+
+	  If unsure, say N.
diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index 128ce17a80b0..6fe881d5cb38 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_BTRFS_FS) := btrfs.o
 
@@ -6,13 +7,14 @@ btrfs-y += super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
 	   transaction.o inode.o file.o tree-defrag.o \
 	   extent_map.o sysfs.o struct-funcs.o xattr.o ordered-data.o \
 	   extent_io.o volumes.o async-thread.o ioctl.o locking.o orphan.o \
-	   export.o tree-log.o free-space-cache.o zlib.o lzo.o \
+	   export.o tree-log.o free-space-cache.o zlib.o lzo.o zstd.o \
 	   compression.o delayed-ref.o relocation.o delayed-inode.o scrub.o \
 	   reada.o backref.o ulist.o qgroup.o send.o dev-replace.o raid56.o \
-	   uuid-tree.o props.o hash.o free-space-tree.o
+	   uuid-tree.o props.o hash.o free-space-tree.o tree-checker.o
 
 btrfs-$(CONFIG_BTRFS_FS_POSIX_ACL) += acl.o
 btrfs-$(CONFIG_BTRFS_FS_CHECK_INTEGRITY) += check-integrity.o
+btrfs-$(CONFIG_BTRFS_FS_REF_VERIFY) += ref-verify.o
 
 btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o \
 	tests/extent-buffer-tests.o tests/btrfs-tests.o \
diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index e00c8a9fd5bb..d5540749f0e5 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -67,7 +67,7 @@ struct btrfs_workqueue {
 static void normal_work_helper(struct btrfs_work *work);
 
 #define BTRFS_WORK_HELPER(name)					\
-void btrfs_##name(struct work_struct *arg)				\
+noinline_for_stack void btrfs_##name(struct work_struct *arg)		\
 {									\
 	struct btrfs_work *work = container_of(arg, struct btrfs_work,	\
 					       normal_work);		\
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index b517ef1477ea..7d0dc100a09a 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -40,12 +40,14 @@ static int check_extent_in_eb(const struct btrfs_key *key,
 			      const struct extent_buffer *eb,
 			      const struct btrfs_file_extent_item *fi,
 			      u64 extent_item_pos,
-			      struct extent_inode_elem **eie)
+			      struct extent_inode_elem **eie,
+			      bool ignore_offset)
 {
 	u64 offset = 0;
 	struct extent_inode_elem *e;
 
-	if (!btrfs_file_extent_compression(eb, fi) &&
+	if (!ignore_offset &&
+	    !btrfs_file_extent_compression(eb, fi) &&
 	    !btrfs_file_extent_encryption(eb, fi) &&
 	    !btrfs_file_extent_other_encoding(eb, fi)) {
 		u64 data_offset;
@@ -84,7 +86,8 @@ static void free_inode_elem_list(struct extent_inode_elem *eie)
 
 static int find_extent_in_eb(const struct extent_buffer *eb,
 			     u64 wanted_disk_byte, u64 extent_item_pos,
-			     struct extent_inode_elem **eie)
+			     struct extent_inode_elem **eie,
+			     bool ignore_offset)
 {
 	u64 disk_byte;
 	struct btrfs_key key;
@@ -113,7 +116,7 @@ static int find_extent_in_eb(const struct extent_buffer *eb,
 		if (disk_byte != wanted_disk_byte)
 			continue;
 
-		ret = check_extent_in_eb(&key, eb, fi, extent_item_pos, eie);
+		ret = check_extent_in_eb(&key, eb, fi, extent_item_pos, eie, ignore_offset);
 		if (ret < 0)
 			return ret;
 	}
@@ -419,7 +422,7 @@ static int add_indirect_ref(const struct btrfs_fs_info *fs_info,
 static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path,
 			   struct ulist *parents, struct prelim_ref *ref,
 			   int level, u64 time_seq, const u64 *extent_item_pos,
-			   u64 total_refs)
+			   u64 total_refs, bool ignore_offset)
 {
 	int ret = 0;
 	int slot;
@@ -472,7 +475,7 @@ static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path,
 			if (extent_item_pos) {
 				ret = check_extent_in_eb(&key, eb, fi,
 						*extent_item_pos,
-						&eie);
+						&eie, ignore_offset);
 				if (ret < 0)
 					break;
 			}
@@ -510,7 +513,8 @@ next:
 static int resolve_indirect_ref(struct btrfs_fs_info *fs_info,
 				struct btrfs_path *path, u64 time_seq,
 				struct prelim_ref *ref, struct ulist *parents,
-				const u64 *extent_item_pos, u64 total_refs)
+				const u64 *extent_item_pos, u64 total_refs,
+				bool ignore_offset)
 {
 	struct btrfs_root *root;
 	struct btrfs_key root_key;
@@ -581,7 +585,7 @@ static int resolve_indirect_ref(struct btrfs_fs_info *fs_info,
 	}
 
 	ret = add_all_parents(root, path, parents, ref, level, time_seq,
-			      extent_item_pos, total_refs);
+			      extent_item_pos, total_refs, ignore_offset);
 out:
 	path->lowest_level = 0;
 	btrfs_release_path(path);
@@ -616,7 +620,7 @@ static int resolve_indirect_refs(struct btrfs_fs_info *fs_info,
 				 struct btrfs_path *path, u64 time_seq,
 				 struct preftrees *preftrees,
 				 const u64 *extent_item_pos, u64 total_refs,
-				 struct share_check *sc)
+				 struct share_check *sc, bool ignore_offset)
 {
 	int err;
 	int ret = 0;
@@ -661,7 +665,7 @@ static int resolve_indirect_refs(struct btrfs_fs_info *fs_info,
 		}
 		err = resolve_indirect_ref(fs_info, path, time_seq, ref,
 					   parents, extent_item_pos,
-					   total_refs);
+					   total_refs, ignore_offset);
 		/*
 		 * we can only tolerate ENOENT,otherwise,we should catch error
 		 * and return directly.
@@ -769,6 +773,7 @@ static int add_delayed_refs(const struct btrfs_fs_info *fs_info,
 	struct btrfs_key key;
 	struct btrfs_key tmp_op_key;
 	struct btrfs_key *op_key = NULL;
+	struct rb_node *n;
 	int count;
 	int ret = 0;
 
@@ -778,7 +783,9 @@ static int add_delayed_refs(const struct btrfs_fs_info *fs_info,
 	}
 
 	spin_lock(&head->lock);
-	list_for_each_entry(node, &head->ref_list, list) {
+	for (n = rb_first(&head->ref_tree); n; n = rb_next(n)) {
+		node = rb_entry(n, struct btrfs_delayed_ref_node,
+				ref_node);
 		if (node->seq > seq)
 			continue;
 
@@ -1107,13 +1114,17 @@ static int add_keyed_refs(struct btrfs_fs_info *fs_info,
  *
  * Otherwise this returns 0 for success and <0 for an error.
  *
+ * If ignore_offset is set to false, only extent refs whose offsets match
+ * extent_item_pos are returned.  If true, every extent ref is returned
+ * and extent_item_pos is ignored.
+ *
  * FIXME some caching might speed things up
  */
 static int find_parent_nodes(struct btrfs_trans_handle *trans,
 			     struct btrfs_fs_info *fs_info, u64 bytenr,
 			     u64 time_seq, struct ulist *refs,
 			     struct ulist *roots, const u64 *extent_item_pos,
-			     struct share_check *sc)
+			     struct share_check *sc, bool ignore_offset)
 {
 	struct btrfs_key key;
 	struct btrfs_path *path;
@@ -1178,7 +1189,7 @@ again:
 		head = btrfs_find_delayed_ref_head(delayed_refs, bytenr);
 		if (head) {
 			if (!mutex_trylock(&head->mutex)) {
-				refcount_inc(&head->node.refs);
+				refcount_inc(&head->refs);
 				spin_unlock(&delayed_refs->lock);
 
 				btrfs_release_path(path);
@@ -1189,7 +1200,7 @@ again:
 				 */
 				mutex_lock(&head->mutex);
 				mutex_unlock(&head->mutex);
-				btrfs_put_delayed_ref(&head->node);
+				btrfs_put_delayed_ref_head(head);
 				goto again;
 			}
 			spin_unlock(&delayed_refs->lock);
@@ -1235,7 +1246,7 @@ again:
 	WARN_ON(!RB_EMPTY_ROOT(&preftrees.indirect_missing_keys.root));
 
 	ret = resolve_indirect_refs(fs_info, path, time_seq, &preftrees,
-				    extent_item_pos, total_refs, sc);
+				    extent_item_pos, total_refs, sc, ignore_offset);
 	if (ret)
 		goto out;
 
@@ -1282,7 +1293,7 @@ again:
 				btrfs_tree_read_lock(eb);
 				btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
 				ret = find_extent_in_eb(eb, bytenr,
-							*extent_item_pos, &eie);
+							*extent_item_pos, &eie, ignore_offset);
 				btrfs_tree_read_unlock_blocking(eb);
 				free_extent_buffer(eb);
 				if (ret < 0)
@@ -1350,7 +1361,7 @@ static void free_leaf_list(struct ulist *blocks)
 static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans,
 				struct btrfs_fs_info *fs_info, u64 bytenr,
 				u64 time_seq, struct ulist **leafs,
-				const u64 *extent_item_pos)
+				const u64 *extent_item_pos, bool ignore_offset)
 {
 	int ret;
 
@@ -1359,7 +1370,7 @@ static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans,
 		return -ENOMEM;
 
 	ret = find_parent_nodes(trans, fs_info, bytenr, time_seq,
-				*leafs, NULL, extent_item_pos, NULL);
+				*leafs, NULL, extent_item_pos, NULL, ignore_offset);
 	if (ret < 0 && ret != -ENOENT) {
 		free_leaf_list(*leafs);
 		return ret;
@@ -1383,7 +1394,8 @@ static int btrfs_find_all_leafs(struct btrfs_trans_handle *trans,
  */
 static int btrfs_find_all_roots_safe(struct btrfs_trans_handle *trans,
 				     struct btrfs_fs_info *fs_info, u64 bytenr,
-				     u64 time_seq, struct ulist **roots)
+				     u64 time_seq, struct ulist **roots,
+				     bool ignore_offset)
 {
 	struct ulist *tmp;
 	struct ulist_node *node = NULL;
@@ -1402,7 +1414,7 @@ static int btrfs_find_all_roots_safe(struct btrfs_trans_handle *trans,
 	ULIST_ITER_INIT(&uiter);
 	while (1) {
 		ret = find_parent_nodes(trans, fs_info, bytenr, time_seq,
-					tmp, *roots, NULL, NULL);
+					tmp, *roots, NULL, NULL, ignore_offset);
 		if (ret < 0 && ret != -ENOENT) {
 			ulist_free(tmp);
 			ulist_free(*roots);
@@ -1421,14 +1433,15 @@ static int btrfs_find_all_roots_safe(struct btrfs_trans_handle *trans,
 
 int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
 			 struct btrfs_fs_info *fs_info, u64 bytenr,
-			 u64 time_seq, struct ulist **roots)
+			 u64 time_seq, struct ulist **roots,
+			 bool ignore_offset)
 {
 	int ret;
 
 	if (!trans)
 		down_read(&fs_info->commit_root_sem);
 	ret = btrfs_find_all_roots_safe(trans, fs_info, bytenr,
-					time_seq, roots);
+					time_seq, roots, ignore_offset);
 	if (!trans)
 		up_read(&fs_info->commit_root_sem);
 	return ret;
@@ -1483,7 +1496,7 @@ int btrfs_check_shared(struct btrfs_root *root, u64 inum, u64 bytenr)
 	ULIST_ITER_INIT(&uiter);
 	while (1) {
 		ret = find_parent_nodes(trans, fs_info, bytenr, elem.seq, tmp,
-					roots, NULL, &shared);
+					roots, NULL, &shared, false);
 		if (ret == BACKREF_FOUND_SHARED) {
 			/* this is the only condition under which we return 1 */
 			ret = 1;
@@ -1877,7 +1890,8 @@ static int iterate_leaf_refs(struct btrfs_fs_info *fs_info,
 int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
 				u64 extent_item_objectid, u64 extent_item_pos,
 				int search_commit_root,
-				iterate_extent_inodes_t *iterate, void *ctx)
+				iterate_extent_inodes_t *iterate, void *ctx,
+				bool ignore_offset)
 {
 	int ret;
 	struct btrfs_trans_handle *trans = NULL;
@@ -1903,14 +1917,15 @@ int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
 
 	ret = btrfs_find_all_leafs(trans, fs_info, extent_item_objectid,
 				   tree_mod_seq_elem.seq, &refs,
-				   &extent_item_pos);
+				   &extent_item_pos, ignore_offset);
 	if (ret)
 		goto out;
 
 	ULIST_ITER_INIT(&ref_uiter);
 	while (!ret && (ref_node = ulist_next(refs, &ref_uiter))) {
 		ret = btrfs_find_all_roots_safe(trans, fs_info, ref_node->val,
-						tree_mod_seq_elem.seq, &roots);
+						tree_mod_seq_elem.seq, &roots,
+						ignore_offset);
 		if (ret)
 			break;
 		ULIST_ITER_INIT(&root_uiter);
@@ -1943,7 +1958,8 @@ out:
 
 int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info,
 				struct btrfs_path *path,
-				iterate_extent_inodes_t *iterate, void *ctx)
+				iterate_extent_inodes_t *iterate, void *ctx,
+				bool ignore_offset)
 {
 	int ret;
 	u64 extent_item_pos;
@@ -1961,7 +1977,7 @@ int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info,
 	extent_item_pos = logical - found_key.objectid;
 	ret = iterate_extent_inodes(fs_info, found_key.objectid,
 					extent_item_pos, search_commit_root,
-					iterate, ctx);
+					iterate, ctx, ignore_offset);
 
 	return ret;
 }
diff --git a/fs/btrfs/backref.h b/fs/btrfs/backref.h
index e410335841aa..0c2fab8514ff 100644
--- a/fs/btrfs/backref.h
+++ b/fs/btrfs/backref.h
@@ -43,17 +43,19 @@ int tree_backref_for_extent(unsigned long *ptr, struct extent_buffer *eb,
 int iterate_extent_inodes(struct btrfs_fs_info *fs_info,
 				u64 extent_item_objectid,
 				u64 extent_offset, int search_commit_root,
-				iterate_extent_inodes_t *iterate, void *ctx);
+				iterate_extent_inodes_t *iterate, void *ctx,
+				bool ignore_offset);
 
 int iterate_inodes_from_logical(u64 logical, struct btrfs_fs_info *fs_info,
 				struct btrfs_path *path,
-				iterate_extent_inodes_t *iterate, void *ctx);
+				iterate_extent_inodes_t *iterate, void *ctx,
+				bool ignore_offset);
 
 int paths_from_inode(u64 inum, struct inode_fs_paths *ipath);
 
 int btrfs_find_all_roots(struct btrfs_trans_handle *trans,
 			 struct btrfs_fs_info *fs_info, u64 bytenr,
-			 u64 time_seq, struct ulist **roots);
+			 u64 time_seq, struct ulist **roots, bool ignore_offset);
 char *btrfs_ref_to_path(struct btrfs_root *fs_root, struct btrfs_path *path,
 			u32 name_len, unsigned long name_off,
 			struct extent_buffer *eb_in, u64 parent,
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index eccadb5f62a5..63f0ccc92a71 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -36,14 +36,13 @@
 #define BTRFS_INODE_ORPHAN_META_RESERVED	1
 #define BTRFS_INODE_DUMMY			2
 #define BTRFS_INODE_IN_DEFRAG			3
-#define BTRFS_INODE_DELALLOC_META_RESERVED	4
-#define BTRFS_INODE_HAS_ORPHAN_ITEM		5
-#define BTRFS_INODE_HAS_ASYNC_EXTENT		6
-#define BTRFS_INODE_NEEDS_FULL_SYNC		7
-#define BTRFS_INODE_COPY_EVERYTHING		8
-#define BTRFS_INODE_IN_DELALLOC_LIST		9
-#define BTRFS_INODE_READDIO_NEED_LOCK		10
-#define BTRFS_INODE_HAS_PROPS		        11
+#define BTRFS_INODE_HAS_ORPHAN_ITEM		4
+#define BTRFS_INODE_HAS_ASYNC_EXTENT		5
+#define BTRFS_INODE_NEEDS_FULL_SYNC		6
+#define BTRFS_INODE_COPY_EVERYTHING		7
+#define BTRFS_INODE_IN_DELALLOC_LIST		8
+#define BTRFS_INODE_READDIO_NEED_LOCK		9
+#define BTRFS_INODE_HAS_PROPS		        10
 
 /* in memory btrfs inode */
 struct btrfs_inode {
@@ -176,7 +175,8 @@ struct btrfs_inode {
 	 * of extent items we've reserved metadata for.
 	 */
 	unsigned outstanding_extents;
-	unsigned reserved_extents;
+
+	struct btrfs_block_rsv block_rsv;
 
 	/*
 	 * Cached values of inode properties
@@ -267,6 +267,17 @@ static inline bool btrfs_is_free_space_inode(struct btrfs_inode *inode)
 	return false;
 }
 
+static inline void btrfs_mod_outstanding_extents(struct btrfs_inode *inode,
+						 int mod)
+{
+	lockdep_assert_held(&inode->lock);
+	inode->outstanding_extents += mod;
+	if (btrfs_is_free_space_inode(inode))
+		return;
+	trace_btrfs_inode_mod_outstanding_extents(inode->root, btrfs_ino(inode),
+						  mod);
+}
+
 static inline int btrfs_inode_in_log(struct btrfs_inode *inode, u64 generation)
 {
 	int ret = 0;
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 7d5a9b51f0d7..7d51b5a5b505 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -613,7 +613,7 @@ static void btrfsic_dev_state_hashtable_add(
 		struct btrfsic_dev_state_hashtable *h)
 {
 	const unsigned int hashval =
-	    (((unsigned int)((uintptr_t)ds->bdev)) &
+	    (((unsigned int)((uintptr_t)ds->bdev->bd_dev)) &
 	     (BTRFSIC_DEV2STATE_HASHTABLE_SIZE - 1));
 
 	list_add(&ds->collision_resolving_node, h->table + hashval);
@@ -2803,7 +2803,7 @@ static void __btrfsic_submit_bio(struct bio *bio)
 	mutex_lock(&btrfsic_mutex);
 	/* since btrfsic_submit_bio() is also called before
 	 * btrfsic_mount(), this might return NULL */
-	dev_state = btrfsic_dev_state_lookup(bio_dev(bio));
+	dev_state = btrfsic_dev_state_lookup(bio_dev(bio) + bio->bi_partno);
 	if (NULL != dev_state &&
 	    (bio_op(bio) == REQ_OP_WRITE) && bio_has_data(bio)) {
 		unsigned int i = 0;
@@ -2913,7 +2913,7 @@ int btrfsic_mount(struct btrfs_fs_info *fs_info,
 	state = kvzalloc(sizeof(*state), GFP_KERNEL);
 	if (!state) {
 		pr_info("btrfs check-integrity: allocation failed!\n");
-		return -1;
+		return -ENOMEM;
 	}
 
 	if (!btrfsic_is_initialized) {
@@ -2945,7 +2945,7 @@ int btrfsic_mount(struct btrfs_fs_info *fs_info,
 		if (NULL == ds) {
 			pr_info("btrfs check-integrity: kmalloc() failed!\n");
 			mutex_unlock(&btrfsic_mutex);
-			return -1;
+			return -ENOMEM;
 		}
 		ds->bdev = device->bdev;
 		ds->state = state;
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 883ecc58fd0d..b35ce16b3df3 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -33,6 +33,8 @@
 #include <linux/bit_spinlock.h>
 #include <linux/slab.h>
 #include <linux/sched/mm.h>
+#include <linux/sort.h>
+#include <linux/log2.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
@@ -107,7 +109,8 @@ static void end_compressed_bio_read(struct bio *bio)
 	struct inode *inode;
 	struct page *page;
 	unsigned long index;
-	int ret;
+	unsigned int mirror = btrfs_io_bio(bio)->mirror_num;
+	int ret = 0;
 
 	if (bio->bi_status)
 		cb->errors = 1;
@@ -118,6 +121,21 @@ static void end_compressed_bio_read(struct bio *bio)
 	if (!refcount_dec_and_test(&cb->pending_bios))
 		goto out;
 
+	/*
+	 * Record the correct mirror_num in cb->orig_bio so that
+	 * read-repair can work properly.
+	 */
+	ASSERT(btrfs_io_bio(cb->orig_bio));
+	btrfs_io_bio(cb->orig_bio)->mirror_num = mirror;
+	cb->mirror_num = mirror;
+
+	/*
+	 * Some IO in this cb have failed, just skip checksum as there
+	 * is no way it could be correct.
+	 */
+	if (cb->errors == 1)
+		goto csum_failed;
+
 	inode = cb->inode;
 	ret = check_compressed_csum(BTRFS_I(inode), cb,
 				    (u64)bio->bi_iter.bi_sector << 9);
@@ -239,7 +257,8 @@ static void end_compressed_bio_write(struct bio *bio)
 					 cb->start,
 					 cb->start + cb->len - 1,
 					 NULL,
-					 bio->bi_status ? 0 : 1);
+					 bio->bi_status ?
+					 BLK_STS_OK : BLK_STS_NOTSUPP);
 	cb->compressed_pages[0]->mapping = NULL;
 
 	end_compressed_writeback(inode, cb);
@@ -690,7 +709,86 @@ out:
 	return ret;
 }
 
-static struct {
+/*
+ * Heuristic uses systematic sampling to collect data from the input data
+ * range, the logic can be tuned by the following constants:
+ *
+ * @SAMPLING_READ_SIZE - how many bytes will be copied from for each sample
+ * @SAMPLING_INTERVAL  - range from which the sampled data can be collected
+ */
+#define SAMPLING_READ_SIZE	(16)
+#define SAMPLING_INTERVAL	(256)
+
+/*
+ * For statistical analysis of the input data we consider bytes that form a
+ * Galois Field of 256 objects. Each object has an attribute count, ie. how
+ * many times the object appeared in the sample.
+ */
+#define BUCKET_SIZE		(256)
+
+/*
+ * The size of the sample is based on a statistical sampling rule of thumb.
+ * The common way is to perform sampling tests as long as the number of
+ * elements in each cell is at least 5.
+ *
+ * Instead of 5, we choose 32 to obtain more accurate results.
+ * If the data contain the maximum number of symbols, which is 256, we obtain a
+ * sample size bound by 8192.
+ *
+ * For a sample of at most 8KB of data per data range: 16 consecutive bytes
+ * from up to 512 locations.
+ */
+#define MAX_SAMPLE_SIZE		(BTRFS_MAX_UNCOMPRESSED *		\
+				 SAMPLING_READ_SIZE / SAMPLING_INTERVAL)
+
+struct bucket_item {
+	u32 count;
+};
+
+struct heuristic_ws {
+	/* Partial copy of input data */
+	u8 *sample;
+	u32 sample_size;
+	/* Buckets store counters for each byte value */
+	struct bucket_item *bucket;
+	struct list_head list;
+};
+
+static void free_heuristic_ws(struct list_head *ws)
+{
+	struct heuristic_ws *workspace;
+
+	workspace = list_entry(ws, struct heuristic_ws, list);
+
+	kvfree(workspace->sample);
+	kfree(workspace->bucket);
+	kfree(workspace);
+}
+
+static struct list_head *alloc_heuristic_ws(void)
+{
+	struct heuristic_ws *ws;
+
+	ws = kzalloc(sizeof(*ws), GFP_KERNEL);
+	if (!ws)
+		return ERR_PTR(-ENOMEM);
+
+	ws->sample = kvmalloc(MAX_SAMPLE_SIZE, GFP_KERNEL);
+	if (!ws->sample)
+		goto fail;
+
+	ws->bucket = kcalloc(BUCKET_SIZE, sizeof(*ws->bucket), GFP_KERNEL);
+	if (!ws->bucket)
+		goto fail;
+
+	INIT_LIST_HEAD(&ws->list);
+	return &ws->list;
+fail:
+	free_heuristic_ws(&ws->list);
+	return ERR_PTR(-ENOMEM);
+}
+
+struct workspaces_list {
 	struct list_head idle_ws;
 	spinlock_t ws_lock;
 	/* Number of free workspaces */
@@ -699,20 +797,39 @@ static struct {
 	atomic_t total_ws;
 	/* Waiters for a free workspace */
 	wait_queue_head_t ws_wait;
-} btrfs_comp_ws[BTRFS_COMPRESS_TYPES];
+};
+
+static struct workspaces_list btrfs_comp_ws[BTRFS_COMPRESS_TYPES];
+
+static struct workspaces_list btrfs_heuristic_ws;
 
 static const struct btrfs_compress_op * const btrfs_compress_op[] = {
 	&btrfs_zlib_compress,
 	&btrfs_lzo_compress,
+	&btrfs_zstd_compress,
 };
 
 void __init btrfs_init_compress(void)
 {
+	struct list_head *workspace;
 	int i;
 
-	for (i = 0; i < BTRFS_COMPRESS_TYPES; i++) {
-		struct list_head *workspace;
+	INIT_LIST_HEAD(&btrfs_heuristic_ws.idle_ws);
+	spin_lock_init(&btrfs_heuristic_ws.ws_lock);
+	atomic_set(&btrfs_heuristic_ws.total_ws, 0);
+	init_waitqueue_head(&btrfs_heuristic_ws.ws_wait);
+
+	workspace = alloc_heuristic_ws();
+	if (IS_ERR(workspace)) {
+		pr_warn(
+	"BTRFS: cannot preallocate heuristic workspace, will try later\n");
+	} else {
+		atomic_set(&btrfs_heuristic_ws.total_ws, 1);
+		btrfs_heuristic_ws.free_ws = 1;
+		list_add(workspace, &btrfs_heuristic_ws.idle_ws);
+	}
 
+	for (i = 0; i < BTRFS_COMPRESS_TYPES; i++) {
 		INIT_LIST_HEAD(&btrfs_comp_ws[i].idle_ws);
 		spin_lock_init(&btrfs_comp_ws[i].ws_lock);
 		atomic_set(&btrfs_comp_ws[i].total_ws, 0);
@@ -739,18 +856,32 @@ void __init btrfs_init_compress(void)
  * Preallocation makes a forward progress guarantees and we do not return
  * errors.
  */
-static struct list_head *find_workspace(int type)
+static struct list_head *__find_workspace(int type, bool heuristic)
 {
 	struct list_head *workspace;
 	int cpus = num_online_cpus();
 	int idx = type - 1;
 	unsigned nofs_flag;
+	struct list_head *idle_ws;
+	spinlock_t *ws_lock;
+	atomic_t *total_ws;
+	wait_queue_head_t *ws_wait;
+	int *free_ws;
+
+	if (heuristic) {
+		idle_ws	 = &btrfs_heuristic_ws.idle_ws;
+		ws_lock	 = &btrfs_heuristic_ws.ws_lock;
+		total_ws = &btrfs_heuristic_ws.total_ws;
+		ws_wait	 = &btrfs_heuristic_ws.ws_wait;
+		free_ws	 = &btrfs_heuristic_ws.free_ws;
+	} else {
+		idle_ws	 = &btrfs_comp_ws[idx].idle_ws;
+		ws_lock	 = &btrfs_comp_ws[idx].ws_lock;
+		total_ws = &btrfs_comp_ws[idx].total_ws;
+		ws_wait	 = &btrfs_comp_ws[idx].ws_wait;
+		free_ws	 = &btrfs_comp_ws[idx].free_ws;
+	}
 
-	struct list_head *idle_ws	= &btrfs_comp_ws[idx].idle_ws;
-	spinlock_t *ws_lock		= &btrfs_comp_ws[idx].ws_lock;
-	atomic_t *total_ws		= &btrfs_comp_ws[idx].total_ws;
-	wait_queue_head_t *ws_wait	= &btrfs_comp_ws[idx].ws_wait;
-	int *free_ws			= &btrfs_comp_ws[idx].free_ws;
 again:
 	spin_lock(ws_lock);
 	if (!list_empty(idle_ws)) {
@@ -780,7 +911,10 @@ again:
 	 * context of btrfs_compress_bio/btrfs_compress_pages
 	 */
 	nofs_flag = memalloc_nofs_save();
-	workspace = btrfs_compress_op[idx]->alloc_workspace();
+	if (heuristic)
+		workspace = alloc_heuristic_ws();
+	else
+		workspace = btrfs_compress_op[idx]->alloc_workspace();
 	memalloc_nofs_restore(nofs_flag);
 
 	if (IS_ERR(workspace)) {
@@ -811,18 +945,38 @@ again:
 	return workspace;
 }
 
+static struct list_head *find_workspace(int type)
+{
+	return __find_workspace(type, false);
+}
+
 /*
  * put a workspace struct back on the list or free it if we have enough
  * idle ones sitting around
  */
-static void free_workspace(int type, struct list_head *workspace)
+static void __free_workspace(int type, struct list_head *workspace,
+			     bool heuristic)
 {
 	int idx = type - 1;
-	struct list_head *idle_ws	= &btrfs_comp_ws[idx].idle_ws;
-	spinlock_t *ws_lock		= &btrfs_comp_ws[idx].ws_lock;
-	atomic_t *total_ws		= &btrfs_comp_ws[idx].total_ws;
-	wait_queue_head_t *ws_wait	= &btrfs_comp_ws[idx].ws_wait;
-	int *free_ws			= &btrfs_comp_ws[idx].free_ws;
+	struct list_head *idle_ws;
+	spinlock_t *ws_lock;
+	atomic_t *total_ws;
+	wait_queue_head_t *ws_wait;
+	int *free_ws;
+
+	if (heuristic) {
+		idle_ws	 = &btrfs_heuristic_ws.idle_ws;
+		ws_lock	 = &btrfs_heuristic_ws.ws_lock;
+		total_ws = &btrfs_heuristic_ws.total_ws;
+		ws_wait	 = &btrfs_heuristic_ws.ws_wait;
+		free_ws	 = &btrfs_heuristic_ws.free_ws;
+	} else {
+		idle_ws	 = &btrfs_comp_ws[idx].idle_ws;
+		ws_lock	 = &btrfs_comp_ws[idx].ws_lock;
+		total_ws = &btrfs_comp_ws[idx].total_ws;
+		ws_wait	 = &btrfs_comp_ws[idx].ws_wait;
+		free_ws	 = &btrfs_comp_ws[idx].free_ws;
+	}
 
 	spin_lock(ws_lock);
 	if (*free_ws <= num_online_cpus()) {
@@ -833,7 +987,10 @@ static void free_workspace(int type, struct list_head *workspace)
 	}
 	spin_unlock(ws_lock);
 
-	btrfs_compress_op[idx]->free_workspace(workspace);
+	if (heuristic)
+		free_heuristic_ws(workspace);
+	else
+		btrfs_compress_op[idx]->free_workspace(workspace);
 	atomic_dec(total_ws);
 wake:
 	/*
@@ -844,6 +1001,11 @@ wake:
 		wake_up(ws_wait);
 }
 
+static void free_workspace(int type, struct list_head *ws)
+{
+	return __free_workspace(type, ws, false);
+}
+
 /*
  * cleanup function for module exit
  */
@@ -852,6 +1014,13 @@ static void free_workspaces(void)
 	struct list_head *workspace;
 	int i;
 
+	while (!list_empty(&btrfs_heuristic_ws.idle_ws)) {
+		workspace = btrfs_heuristic_ws.idle_ws.next;
+		list_del(workspace);
+		free_heuristic_ws(workspace);
+		atomic_dec(&btrfs_heuristic_ws.total_ws);
+	}
+
 	for (i = 0; i < BTRFS_COMPRESS_TYPES; i++) {
 		while (!list_empty(&btrfs_comp_ws[i].idle_ws)) {
 			workspace = btrfs_comp_ws[i].idle_ws.next;
@@ -866,6 +1035,11 @@ static void free_workspaces(void)
  * Given an address space and start and length, compress the bytes into @pages
  * that are allocated on demand.
  *
+ * @type_level is encoded algorithm and level, where level 0 means whatever
+ * default the algorithm chooses and is opaque here;
+ * - compression algo are 0-3
+ * - the level are bits 4-7
+ *
  * @out_pages is an in/out parameter, holds maximum number of pages to allocate
  * and returns number of actually allocated pages
  *
@@ -880,7 +1054,7 @@ static void free_workspaces(void)
  * @max_out tells us the max number of bytes that we're allowed to
  * stuff into pages
  */
-int btrfs_compress_pages(int type, struct address_space *mapping,
+int btrfs_compress_pages(unsigned int type_level, struct address_space *mapping,
 			 u64 start, struct page **pages,
 			 unsigned long *out_pages,
 			 unsigned long *total_in,
@@ -888,9 +1062,11 @@ int btrfs_compress_pages(int type, struct address_space *mapping,
 {
 	struct list_head *workspace;
 	int ret;
+	int type = type_level & 0xF;
 
 	workspace = find_workspace(type);
 
+	btrfs_compress_op[type - 1]->set_level(workspace, type_level);
 	ret = btrfs_compress_op[type-1]->compress_pages(workspace, mapping,
 						      start, pages,
 						      out_pages,
@@ -1049,6 +1225,211 @@ int btrfs_decompress_buf2page(const char *buf, unsigned long buf_start,
 }
 
 /*
+ * Shannon Entropy calculation
+ *
+ * Pure byte distribution analysis fails to determine compressiability of data.
+ * Try calculating entropy to estimate the average minimum number of bits
+ * needed to encode the sampled data.
+ *
+ * For convenience, return the percentage of needed bits, instead of amount of
+ * bits directly.
+ *
+ * @ENTROPY_LVL_ACEPTABLE - below that threshold, sample has low byte entropy
+ *			    and can be compressible with high probability
+ *
+ * @ENTROPY_LVL_HIGH - data are not compressible with high probability
+ *
+ * Use of ilog2() decreases precision, we lower the LVL to 5 to compensate.
+ */
+#define ENTROPY_LVL_ACEPTABLE		(65)
+#define ENTROPY_LVL_HIGH		(80)
+
+/*
+ * For increasead precision in shannon_entropy calculation,
+ * let's do pow(n, M) to save more digits after comma:
+ *
+ * - maximum int bit length is 64
+ * - ilog2(MAX_SAMPLE_SIZE)	-> 13
+ * - 13 * 4 = 52 < 64		-> M = 4
+ *
+ * So use pow(n, 4).
+ */
+static inline u32 ilog2_w(u64 n)
+{
+	return ilog2(n * n * n * n);
+}
+
+static u32 shannon_entropy(struct heuristic_ws *ws)
+{
+	const u32 entropy_max = 8 * ilog2_w(2);
+	u32 entropy_sum = 0;
+	u32 p, p_base, sz_base;
+	u32 i;
+
+	sz_base = ilog2_w(ws->sample_size);
+	for (i = 0; i < BUCKET_SIZE && ws->bucket[i].count > 0; i++) {
+		p = ws->bucket[i].count;
+		p_base = ilog2_w(p);
+		entropy_sum += p * (sz_base - p_base);
+	}
+
+	entropy_sum /= ws->sample_size;
+	return entropy_sum * 100 / entropy_max;
+}
+
+/* Compare buckets by size, ascending */
+static int bucket_comp_rev(const void *lv, const void *rv)
+{
+	const struct bucket_item *l = (const struct bucket_item *)lv;
+	const struct bucket_item *r = (const struct bucket_item *)rv;
+
+	return r->count - l->count;
+}
+
+/*
+ * Size of the core byte set - how many bytes cover 90% of the sample
+ *
+ * There are several types of structured binary data that use nearly all byte
+ * values. The distribution can be uniform and counts in all buckets will be
+ * nearly the same (eg. encrypted data). Unlikely to be compressible.
+ *
+ * Other possibility is normal (Gaussian) distribution, where the data could
+ * be potentially compressible, but we have to take a few more steps to decide
+ * how much.
+ *
+ * @BYTE_CORE_SET_LOW  - main part of byte values repeated frequently,
+ *                       compression algo can easy fix that
+ * @BYTE_CORE_SET_HIGH - data have uniform distribution and with high
+ *                       probability is not compressible
+ */
+#define BYTE_CORE_SET_LOW		(64)
+#define BYTE_CORE_SET_HIGH		(200)
+
+static int byte_core_set_size(struct heuristic_ws *ws)
+{
+	u32 i;
+	u32 coreset_sum = 0;
+	const u32 core_set_threshold = ws->sample_size * 90 / 100;
+	struct bucket_item *bucket = ws->bucket;
+
+	/* Sort in reverse order */
+	sort(bucket, BUCKET_SIZE, sizeof(*bucket), &bucket_comp_rev, NULL);
+
+	for (i = 0; i < BYTE_CORE_SET_LOW; i++)
+		coreset_sum += bucket[i].count;
+
+	if (coreset_sum > core_set_threshold)
+		return i;
+
+	for (; i < BYTE_CORE_SET_HIGH && bucket[i].count > 0; i++) {
+		coreset_sum += bucket[i].count;
+		if (coreset_sum > core_set_threshold)
+			break;
+	}
+
+	return i;
+}
+
+/*
+ * Count byte values in buckets.
+ * This heuristic can detect textual data (configs, xml, json, html, etc).
+ * Because in most text-like data byte set is restricted to limited number of
+ * possible characters, and that restriction in most cases makes data easy to
+ * compress.
+ *
+ * @BYTE_SET_THRESHOLD - consider all data within this byte set size:
+ *	less - compressible
+ *	more - need additional analysis
+ */
+#define BYTE_SET_THRESHOLD		(64)
+
+static u32 byte_set_size(const struct heuristic_ws *ws)
+{
+	u32 i;
+	u32 byte_set_size = 0;
+
+	for (i = 0; i < BYTE_SET_THRESHOLD; i++) {
+		if (ws->bucket[i].count > 0)
+			byte_set_size++;
+	}
+
+	/*
+	 * Continue collecting count of byte values in buckets.  If the byte
+	 * set size is bigger then the threshold, it's pointless to continue,
+	 * the detection technique would fail for this type of data.
+	 */
+	for (; i < BUCKET_SIZE; i++) {
+		if (ws->bucket[i].count > 0) {
+			byte_set_size++;
+			if (byte_set_size > BYTE_SET_THRESHOLD)
+				return byte_set_size;
+		}
+	}
+
+	return byte_set_size;
+}
+
+static bool sample_repeated_patterns(struct heuristic_ws *ws)
+{
+	const u32 half_of_sample = ws->sample_size / 2;
+	const u8 *data = ws->sample;
+
+	return memcmp(&data[0], &data[half_of_sample], half_of_sample) == 0;
+}
+
+static void heuristic_collect_sample(struct inode *inode, u64 start, u64 end,
+				     struct heuristic_ws *ws)
+{
+	struct page *page;
+	u64 index, index_end;
+	u32 i, curr_sample_pos;
+	u8 *in_data;
+
+	/*
+	 * Compression handles the input data by chunks of 128KiB
+	 * (defined by BTRFS_MAX_UNCOMPRESSED)
+	 *
+	 * We do the same for the heuristic and loop over the whole range.
+	 *
+	 * MAX_SAMPLE_SIZE - calculated under assumption that heuristic will
+	 * process no more than BTRFS_MAX_UNCOMPRESSED at a time.
+	 */
+	if (end - start > BTRFS_MAX_UNCOMPRESSED)
+		end = start + BTRFS_MAX_UNCOMPRESSED;
+
+	index = start >> PAGE_SHIFT;
+	index_end = end >> PAGE_SHIFT;
+
+	/* Don't miss unaligned end */
+	if (!IS_ALIGNED(end, PAGE_SIZE))
+		index_end++;
+
+	curr_sample_pos = 0;
+	while (index < index_end) {
+		page = find_get_page(inode->i_mapping, index);
+		in_data = kmap(page);
+		/* Handle case where the start is not aligned to PAGE_SIZE */
+		i = start % PAGE_SIZE;
+		while (i < PAGE_SIZE - SAMPLING_READ_SIZE) {
+			/* Don't sample any garbage from the last page */
+			if (start > end - SAMPLING_READ_SIZE)
+				break;
+			memcpy(&ws->sample[curr_sample_pos], &in_data[i],
+					SAMPLING_READ_SIZE);
+			i += SAMPLING_INTERVAL;
+			start += SAMPLING_INTERVAL;
+			curr_sample_pos += SAMPLING_READ_SIZE;
+		}
+		kunmap(page);
+		put_page(page);
+
+		index++;
+	}
+
+	ws->sample_size = curr_sample_pos;
+}
+
+/*
  * Compression heuristic.
  *
  * For now is's a naive and optimistic 'return true', we'll extend the logic to
@@ -1065,18 +1446,87 @@ int btrfs_decompress_buf2page(const char *buf, unsigned long buf_start,
  */
 int btrfs_compress_heuristic(struct inode *inode, u64 start, u64 end)
 {
-	u64 index = start >> PAGE_SHIFT;
-	u64 end_index = end >> PAGE_SHIFT;
-	struct page *page;
-	int ret = 1;
+	struct list_head *ws_list = __find_workspace(0, true);
+	struct heuristic_ws *ws;
+	u32 i;
+	u8 byte;
+	int ret = 0;
 
-	while (index <= end_index) {
-		page = find_get_page(inode->i_mapping, index);
-		kmap(page);
-		kunmap(page);
-		put_page(page);
-		index++;
+	ws = list_entry(ws_list, struct heuristic_ws, list);
+
+	heuristic_collect_sample(inode, start, end, ws);
+
+	if (sample_repeated_patterns(ws)) {
+		ret = 1;
+		goto out;
+	}
+
+	memset(ws->bucket, 0, sizeof(*ws->bucket)*BUCKET_SIZE);
+
+	for (i = 0; i < ws->sample_size; i++) {
+		byte = ws->sample[i];
+		ws->bucket[byte].count++;
+	}
+
+	i = byte_set_size(ws);
+	if (i < BYTE_SET_THRESHOLD) {
+		ret = 2;
+		goto out;
+	}
+
+	i = byte_core_set_size(ws);
+	if (i <= BYTE_CORE_SET_LOW) {
+		ret = 3;
+		goto out;
+	}
+
+	if (i >= BYTE_CORE_SET_HIGH) {
+		ret = 0;
+		goto out;
+	}
+
+	i = shannon_entropy(ws);
+	if (i <= ENTROPY_LVL_ACEPTABLE) {
+		ret = 4;
+		goto out;
+	}
+
+	/*
+	 * For the levels below ENTROPY_LVL_HIGH, additional analysis would be
+	 * needed to give green light to compression.
+	 *
+	 * For now just assume that compression at that level is not worth the
+	 * resources because:
+	 *
+	 * 1. it is possible to defrag the data later
+	 *
+	 * 2. the data would turn out to be hardly compressible, eg. 150 byte
+	 * values, every bucket has counter at level ~54. The heuristic would
+	 * be confused. This can happen when data have some internal repeated
+	 * patterns like "abbacbbc...". This can be detected by analyzing
+	 * pairs of bytes, which is too costly.
+	 */
+	if (i < ENTROPY_LVL_HIGH) {
+		ret = 5;
+		goto out;
+	} else {
+		ret = 0;
+		goto out;
 	}
 
+out:
+	__free_workspace(0, ws_list, true);
 	return ret;
 }
+
+unsigned int btrfs_compress_str2level(const char *str)
+{
+	if (strncmp(str, "zlib", 4) != 0)
+		return 0;
+
+	/* Accepted form: zlib:1 up to zlib:9 and nothing left after the number */
+	if (str[4] == ':' && '1' <= str[5] && str[5] <= '9' && str[6] == 0)
+		return str[5] - '0';
+
+	return 0;
+}
diff --git a/fs/btrfs/compression.h b/fs/btrfs/compression.h
index 3b1b0ac15fdc..da20755ebf21 100644
--- a/fs/btrfs/compression.h
+++ b/fs/btrfs/compression.h
@@ -76,7 +76,7 @@ struct compressed_bio {
 void btrfs_init_compress(void);
 void btrfs_exit_compress(void);
 
-int btrfs_compress_pages(int type, struct address_space *mapping,
+int btrfs_compress_pages(unsigned int type_level, struct address_space *mapping,
 			 u64 start, struct page **pages,
 			 unsigned long *out_pages,
 			 unsigned long *total_in,
@@ -95,11 +95,14 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start,
 blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
 				 int mirror_num, unsigned long bio_flags);
 
+unsigned btrfs_compress_str2level(const char *str);
+
 enum btrfs_compression_type {
 	BTRFS_COMPRESS_NONE  = 0,
 	BTRFS_COMPRESS_ZLIB  = 1,
 	BTRFS_COMPRESS_LZO   = 2,
-	BTRFS_COMPRESS_TYPES = 2,
+	BTRFS_COMPRESS_ZSTD  = 3,
+	BTRFS_COMPRESS_TYPES = 3,
 };
 
 struct btrfs_compress_op {
@@ -123,10 +126,13 @@ struct btrfs_compress_op {
 			  struct page *dest_page,
 			  unsigned long start_byte,
 			  size_t srclen, size_t destlen);
+
+	void (*set_level)(struct list_head *ws, unsigned int type);
 };
 
 extern const struct btrfs_compress_op btrfs_zlib_compress;
 extern const struct btrfs_compress_op btrfs_lzo_compress;
+extern const struct btrfs_compress_op btrfs_zstd_compress;
 
 int btrfs_compress_heuristic(struct inode *inode, u64 start, u64 end);
 
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 6d49db7d86be..531e0a8645b0 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -192,7 +192,7 @@ struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root)
  * tree until you end up with a lock on the root.  A locked buffer
  * is returned, with a reference held.
  */
-static struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root)
+struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root)
 {
 	struct extent_buffer *eb;
 
@@ -5496,8 +5496,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
 			goto out;
 		} else if (left_end_reached) {
 			if (right_level == 0) {
-				ret = changed_cb(left_root, right_root,
-						left_path, right_path,
+				ret = changed_cb(left_path, right_path,
 						&right_key,
 						BTRFS_COMPARE_TREE_DELETED,
 						ctx);
@@ -5508,8 +5507,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
 			continue;
 		} else if (right_end_reached) {
 			if (left_level == 0) {
-				ret = changed_cb(left_root, right_root,
-						left_path, right_path,
+				ret = changed_cb(left_path, right_path,
 						&left_key,
 						BTRFS_COMPARE_TREE_NEW,
 						ctx);
@@ -5523,8 +5521,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
 		if (left_level == 0 && right_level == 0) {
 			cmp = btrfs_comp_cpu_keys(&left_key, &right_key);
 			if (cmp < 0) {
-				ret = changed_cb(left_root, right_root,
-						left_path, right_path,
+				ret = changed_cb(left_path, right_path,
 						&left_key,
 						BTRFS_COMPARE_TREE_NEW,
 						ctx);
@@ -5532,8 +5529,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
 					goto out;
 				advance_left = ADVANCE;
 			} else if (cmp > 0) {
-				ret = changed_cb(left_root, right_root,
-						left_path, right_path,
+				ret = changed_cb(left_path, right_path,
 						&right_key,
 						BTRFS_COMPARE_TREE_DELETED,
 						ctx);
@@ -5550,8 +5546,7 @@ int btrfs_compare_trees(struct btrfs_root *left_root,
 					result = BTRFS_COMPARE_TREE_CHANGED;
 				else
 					result = BTRFS_COMPARE_TREE_SAME;
-				ret = changed_cb(left_root, right_root,
-						 left_path, right_path,
+				ret = changed_cb(left_path, right_path,
 						 &left_key, result, ctx);
 				if (ret < 0)
 					goto out;
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 2add002662f4..f7df5536ab61 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -270,6 +270,7 @@ struct btrfs_super_block {
 	 BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS |		\
 	 BTRFS_FEATURE_INCOMPAT_BIG_METADATA |		\
 	 BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO |		\
+	 BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD |		\
 	 BTRFS_FEATURE_INCOMPAT_RAID56 |		\
 	 BTRFS_FEATURE_INCOMPAT_EXTENDED_IREF |		\
 	 BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA |	\
@@ -522,7 +523,7 @@ struct btrfs_caching_control {
 };
 
 /* Once caching_thread() finds this much free space, it will wake up waiters. */
-#define CACHING_CTL_WAKE_UP (1024 * 1024 * 2)
+#define CACHING_CTL_WAKE_UP SZ_2M
 
 struct btrfs_io_ctl {
 	void *cur, *orig;
@@ -708,7 +709,6 @@ struct btrfs_delayed_root;
 #define BTRFS_FS_OPEN				5
 #define BTRFS_FS_QUOTA_ENABLED			6
 #define BTRFS_FS_QUOTA_ENABLING			7
-#define BTRFS_FS_QUOTA_DISABLING		8
 #define BTRFS_FS_UPDATE_UUID_TREE_GEN		9
 #define BTRFS_FS_CREATING_FREE_SPACE_TREE	10
 #define BTRFS_FS_BTREE_ERR			11
@@ -722,7 +722,7 @@ struct btrfs_delayed_root;
  * Indicate that a whole-filesystem exclusive operation is running
  * (device replace, resize, device add/delete, balance)
  */
-#define BTRFS_FS_EXCL_OP			14
+#define BTRFS_FS_EXCL_OP			16
 
 struct btrfs_fs_info {
 	u8 fsid[BTRFS_FSID_SIZE];
@@ -763,8 +763,6 @@ struct btrfs_fs_info {
 	 * delayed dir index item
 	 */
 	struct btrfs_block_rsv global_block_rsv;
-	/* block reservation for delay allocation */
-	struct btrfs_block_rsv delalloc_block_rsv;
 	/* block reservation for metadata operations */
 	struct btrfs_block_rsv trans_block_rsv;
 	/* block reservation for chunk tree */
@@ -790,6 +788,7 @@ struct btrfs_fs_info {
 	 */
 	unsigned long pending_changes;
 	unsigned long compress_type:4;
+	unsigned int compress_level;
 	int commit_interval;
 	/*
 	 * It is a suggestive number, the read side is safe even it gets a
@@ -878,9 +877,6 @@ struct btrfs_fs_info {
 	rwlock_t tree_mod_log_lock;
 	struct rb_root tree_mod_log;
 
-	atomic_t nr_async_submits;
-	atomic_t async_submit_draining;
-	atomic_t nr_async_bios;
 	atomic_t async_delalloc_pages;
 	atomic_t open_ioctl_trans;
 
@@ -1100,6 +1096,11 @@ struct btrfs_fs_info {
 	u32 nodesize;
 	u32 sectorsize;
 	u32 stripesize;
+
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+	spinlock_t ref_verify_lock;
+	struct rb_root block_tree;
+#endif
 };
 
 static inline struct btrfs_fs_info *btrfs_sb(struct super_block *sb)
@@ -1338,6 +1339,7 @@ static inline u32 BTRFS_MAX_XATTR_SIZE(const struct btrfs_fs_info *info)
 #define BTRFS_MOUNT_FRAGMENT_METADATA	(1 << 25)
 #define BTRFS_MOUNT_FREE_SPACE_TREE	(1 << 26)
 #define BTRFS_MOUNT_NOLOGREPLAY		(1 << 27)
+#define BTRFS_MOUNT_REF_VERIFY		(1 << 28)
 
 #define BTRFS_DEFAULT_COMMIT_INTERVAL	(30)
 #define BTRFS_DEFAULT_MAX_INLINE	(2048)
@@ -2639,7 +2641,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
 			   struct extent_buffer *buf,
 			   u64 parent, int last_ref);
 int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
-				     u64 root_objectid, u64 owner,
+				     struct btrfs_root *root, u64 owner,
 				     u64 offset, u64 ram_bytes,
 				     struct btrfs_key *ins);
 int btrfs_alloc_logged_file_extent(struct btrfs_trans_handle *trans,
@@ -2658,7 +2660,7 @@ int btrfs_set_disk_extent_flags(struct btrfs_trans_handle *trans,
 				u64 bytenr, u64 num_bytes, u64 flags,
 				int level, int is_data);
 int btrfs_free_extent(struct btrfs_trans_handle *trans,
-		      struct btrfs_fs_info *fs_info,
+		      struct btrfs_root *root,
 		      u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid,
 		      u64 owner, u64 offset);
 
@@ -2670,7 +2672,7 @@ void btrfs_prepare_extent_commit(struct btrfs_fs_info *fs_info);
 int btrfs_finish_extent_commit(struct btrfs_trans_handle *trans,
 			       struct btrfs_fs_info *fs_info);
 int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
-			 struct btrfs_fs_info *fs_info,
+			 struct btrfs_root *root,
 			 u64 bytenr, u64 num_bytes, u64 parent,
 			 u64 root_objectid, u64 owner, u64 offset);
 
@@ -2744,6 +2746,8 @@ int btrfs_subvolume_reserve_metadata(struct btrfs_root *root,
 				     u64 *qgroup_reserved, bool use_global_rsv);
 void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
 				      struct btrfs_block_rsv *rsv);
+void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes);
+
 int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes);
 void btrfs_delalloc_release_metadata(struct btrfs_inode *inode, u64 num_bytes);
 int btrfs_delalloc_reserve_space(struct inode *inode,
@@ -2751,6 +2755,9 @@ int btrfs_delalloc_reserve_space(struct inode *inode,
 void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type);
 struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info,
 					      unsigned short type);
+void btrfs_init_metadata_block_rsv(struct btrfs_fs_info *fs_info,
+				   struct btrfs_block_rsv *rsv,
+				   unsigned short type);
 void btrfs_free_block_rsv(struct btrfs_fs_info *fs_info,
 			  struct btrfs_block_rsv *rsv);
 void __btrfs_free_block_rsv(struct btrfs_block_rsv *rsv);
@@ -2809,6 +2816,7 @@ void btrfs_set_item_key_safe(struct btrfs_fs_info *fs_info,
 			     const struct btrfs_key *new_key);
 struct extent_buffer *btrfs_root_node(struct btrfs_root *root);
 struct extent_buffer *btrfs_lock_root_node(struct btrfs_root *root);
+struct extent_buffer *btrfs_read_lock_root_node(struct btrfs_root *root);
 int btrfs_find_next_key(struct btrfs_root *root, struct btrfs_path *path,
 			struct btrfs_key *key, int lowest_level,
 			u64 min_trans);
@@ -2821,9 +2829,7 @@ enum btrfs_compare_tree_result {
 	BTRFS_COMPARE_TREE_CHANGED,
 	BTRFS_COMPARE_TREE_SAME,
 };
-typedef int (*btrfs_changed_cb_t)(struct btrfs_root *left_root,
-				  struct btrfs_root *right_root,
-				  struct btrfs_path *left_path,
+typedef int (*btrfs_changed_cb_t)(struct btrfs_path *left_path,
 				  struct btrfs_path *right_path,
 				  struct btrfs_key *key,
 				  enum btrfs_compare_tree_result result,
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 19e4ad2f3f2e..5d73f79ded8b 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -581,7 +581,6 @@ static int btrfs_delayed_inode_reserve_metadata(
 	struct btrfs_block_rsv *dst_rsv;
 	u64 num_bytes;
 	int ret;
-	bool release = false;
 
 	src_rsv = trans->block_rsv;
 	dst_rsv = &fs_info->delayed_block_rsv;
@@ -589,36 +588,13 @@ static int btrfs_delayed_inode_reserve_metadata(
 	num_bytes = btrfs_calc_trans_metadata_size(fs_info, 1);
 
 	/*
-	 * If our block_rsv is the delalloc block reserve then check and see if
-	 * we have our extra reservation for updating the inode.  If not fall
-	 * through and try to reserve space quickly.
-	 *
-	 * We used to try and steal from the delalloc block rsv or the global
-	 * reserve, but we'd steal a full reservation, which isn't kind.  We are
-	 * here through delalloc which means we've likely just cowed down close
-	 * to the leaf that contains the inode, so we would steal less just
-	 * doing the fallback inode update, so if we do end up having to steal
-	 * from the global block rsv we hopefully only steal one or two blocks
-	 * worth which is less likely to hurt us.
-	 */
-	if (src_rsv && src_rsv->type == BTRFS_BLOCK_RSV_DELALLOC) {
-		spin_lock(&inode->lock);
-		if (test_and_clear_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
-				       &inode->runtime_flags))
-			release = true;
-		else
-			src_rsv = NULL;
-		spin_unlock(&inode->lock);
-	}
-
-	/*
 	 * btrfs_dirty_inode will update the inode under btrfs_join_transaction
 	 * which doesn't reserve space for speed.  This is a problem since we
 	 * still need to reserve space for this update, so try to reserve the
 	 * space.
 	 *
 	 * Now if src_rsv == delalloc_block_rsv we'll let it just steal since
-	 * we're accounted for.
+	 * we always reserve enough to update the inode item.
 	 */
 	if (!src_rsv || (!trans->bytes_reserved &&
 			 src_rsv->type != BTRFS_BLOCK_RSV_DELALLOC)) {
@@ -643,32 +619,12 @@ static int btrfs_delayed_inode_reserve_metadata(
 	}
 
 	ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes, 1);
-
-	/*
-	 * Migrate only takes a reservation, it doesn't touch the size of the
-	 * block_rsv.  This is to simplify people who don't normally have things
-	 * migrated from their block rsv.  If they go to release their
-	 * reservation, that will decrease the size as well, so if migrate
-	 * reduced size we'd end up with a negative size.  But for the
-	 * delalloc_meta_reserved stuff we will only know to drop 1 reservation,
-	 * but we could in fact do this reserve/migrate dance several times
-	 * between the time we did the original reservation and we'd clean it
-	 * up.  So to take care of this, release the space for the meta
-	 * reservation here.  I think it may be time for a documentation page on
-	 * how block rsvs. work.
-	 */
 	if (!ret) {
 		trace_btrfs_space_reservation(fs_info, "delayed_inode",
 					      btrfs_ino(inode), num_bytes, 1);
 		node->bytes_reserved = num_bytes;
 	}
 
-	if (release) {
-		trace_btrfs_space_reservation(fs_info, "delalloc",
-					      btrfs_ino(inode), num_bytes, 0);
-		btrfs_block_rsv_release(fs_info, src_rsv, num_bytes);
-	}
-
 	return ret;
 }
 
diff --git a/fs/btrfs/delayed-ref.c b/fs/btrfs/delayed-ref.c
index 93ffa898df6d..83be8f9fd906 100644
--- a/fs/btrfs/delayed-ref.c
+++ b/fs/btrfs/delayed-ref.c
@@ -40,10 +40,10 @@ struct kmem_cache *btrfs_delayed_extent_op_cachep;
 /*
  * compare two delayed tree backrefs with same bytenr and type
  */
-static int comp_tree_refs(struct btrfs_delayed_tree_ref *ref2,
-			  struct btrfs_delayed_tree_ref *ref1, int type)
+static int comp_tree_refs(struct btrfs_delayed_tree_ref *ref1,
+			  struct btrfs_delayed_tree_ref *ref2)
 {
-	if (type == BTRFS_TREE_BLOCK_REF_KEY) {
+	if (ref1->node.type == BTRFS_TREE_BLOCK_REF_KEY) {
 		if (ref1->root < ref2->root)
 			return -1;
 		if (ref1->root > ref2->root)
@@ -60,8 +60,8 @@ static int comp_tree_refs(struct btrfs_delayed_tree_ref *ref2,
 /*
  * compare two delayed data backrefs with same bytenr and type
  */
-static int comp_data_refs(struct btrfs_delayed_data_ref *ref2,
-			  struct btrfs_delayed_data_ref *ref1)
+static int comp_data_refs(struct btrfs_delayed_data_ref *ref1,
+			  struct btrfs_delayed_data_ref *ref2)
 {
 	if (ref1->node.type == BTRFS_EXTENT_DATA_REF_KEY) {
 		if (ref1->root < ref2->root)
@@ -85,6 +85,34 @@ static int comp_data_refs(struct btrfs_delayed_data_ref *ref2,
 	return 0;
 }
 
+static int comp_refs(struct btrfs_delayed_ref_node *ref1,
+		     struct btrfs_delayed_ref_node *ref2,
+		     bool check_seq)
+{
+	int ret = 0;
+
+	if (ref1->type < ref2->type)
+		return -1;
+	if (ref1->type > ref2->type)
+		return 1;
+	if (ref1->type == BTRFS_TREE_BLOCK_REF_KEY ||
+	    ref1->type == BTRFS_SHARED_BLOCK_REF_KEY)
+		ret = comp_tree_refs(btrfs_delayed_node_to_tree_ref(ref1),
+				     btrfs_delayed_node_to_tree_ref(ref2));
+	else
+		ret = comp_data_refs(btrfs_delayed_node_to_data_ref(ref1),
+				     btrfs_delayed_node_to_data_ref(ref2));
+	if (ret)
+		return ret;
+	if (check_seq) {
+		if (ref1->seq < ref2->seq)
+			return -1;
+		if (ref1->seq > ref2->seq)
+			return 1;
+	}
+	return 0;
+}
+
 /* insert a new ref to head ref rbtree */
 static struct btrfs_delayed_ref_head *htree_insert(struct rb_root *root,
 						   struct rb_node *node)
@@ -96,15 +124,43 @@ static struct btrfs_delayed_ref_head *htree_insert(struct rb_root *root,
 	u64 bytenr;
 
 	ins = rb_entry(node, struct btrfs_delayed_ref_head, href_node);
-	bytenr = ins->node.bytenr;
+	bytenr = ins->bytenr;
 	while (*p) {
 		parent_node = *p;
 		entry = rb_entry(parent_node, struct btrfs_delayed_ref_head,
 				 href_node);
 
-		if (bytenr < entry->node.bytenr)
+		if (bytenr < entry->bytenr)
+			p = &(*p)->rb_left;
+		else if (bytenr > entry->bytenr)
+			p = &(*p)->rb_right;
+		else
+			return entry;
+	}
+
+	rb_link_node(node, parent_node, p);
+	rb_insert_color(node, root);
+	return NULL;
+}
+
+static struct btrfs_delayed_ref_node* tree_insert(struct rb_root *root,
+		struct btrfs_delayed_ref_node *ins)
+{
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *node = &ins->ref_node;
+	struct rb_node *parent_node = NULL;
+	struct btrfs_delayed_ref_node *entry;
+
+	while (*p) {
+		int comp;
+
+		parent_node = *p;
+		entry = rb_entry(parent_node, struct btrfs_delayed_ref_node,
+				 ref_node);
+		comp = comp_refs(ins, entry, true);
+		if (comp < 0)
 			p = &(*p)->rb_left;
-		else if (bytenr > entry->node.bytenr)
+		else if (comp > 0)
 			p = &(*p)->rb_right;
 		else
 			return entry;
@@ -133,15 +189,15 @@ find_ref_head(struct rb_root *root, u64 bytenr,
 	while (n) {
 		entry = rb_entry(n, struct btrfs_delayed_ref_head, href_node);
 
-		if (bytenr < entry->node.bytenr)
+		if (bytenr < entry->bytenr)
 			n = n->rb_left;
-		else if (bytenr > entry->node.bytenr)
+		else if (bytenr > entry->bytenr)
 			n = n->rb_right;
 		else
 			return entry;
 	}
 	if (entry && return_bigger) {
-		if (bytenr > entry->node.bytenr) {
+		if (bytenr > entry->bytenr) {
 			n = rb_next(&entry->href_node);
 			if (!n)
 				n = rb_first(root);
@@ -164,17 +220,17 @@ int btrfs_delayed_ref_lock(struct btrfs_trans_handle *trans,
 	if (mutex_trylock(&head->mutex))
 		return 0;
 
-	refcount_inc(&head->node.refs);
+	refcount_inc(&head->refs);
 	spin_unlock(&delayed_refs->lock);
 
 	mutex_lock(&head->mutex);
 	spin_lock(&delayed_refs->lock);
-	if (!head->node.in_tree) {
+	if (RB_EMPTY_NODE(&head->href_node)) {
 		mutex_unlock(&head->mutex);
-		btrfs_put_delayed_ref(&head->node);
+		btrfs_put_delayed_ref_head(head);
 		return -EAGAIN;
 	}
-	btrfs_put_delayed_ref(&head->node);
+	btrfs_put_delayed_ref_head(head);
 	return 0;
 }
 
@@ -183,15 +239,11 @@ static inline void drop_delayed_ref(struct btrfs_trans_handle *trans,
 				    struct btrfs_delayed_ref_head *head,
 				    struct btrfs_delayed_ref_node *ref)
 {
-	if (btrfs_delayed_ref_is_head(ref)) {
-		head = btrfs_delayed_node_to_head(ref);
-		rb_erase(&head->href_node, &delayed_refs->href_root);
-	} else {
-		assert_spin_locked(&head->lock);
-		list_del(&ref->list);
-		if (!list_empty(&ref->add_list))
-			list_del(&ref->add_list);
-	}
+	assert_spin_locked(&head->lock);
+	rb_erase(&ref->ref_node, &head->ref_tree);
+	RB_CLEAR_NODE(&ref->ref_node);
+	if (!list_empty(&ref->add_list))
+		list_del(&ref->add_list);
 	ref->in_tree = 0;
 	btrfs_put_delayed_ref(ref);
 	atomic_dec(&delayed_refs->num_entries);
@@ -206,36 +258,18 @@ static bool merge_ref(struct btrfs_trans_handle *trans,
 		      u64 seq)
 {
 	struct btrfs_delayed_ref_node *next;
+	struct rb_node *node = rb_next(&ref->ref_node);
 	bool done = false;
 
-	next = list_first_entry(&head->ref_list, struct btrfs_delayed_ref_node,
-				list);
-	while (!done && &next->list != &head->ref_list) {
+	while (!done && node) {
 		int mod;
-		struct btrfs_delayed_ref_node *next2;
-
-		next2 = list_next_entry(next, list);
-
-		if (next == ref)
-			goto next;
 
+		next = rb_entry(node, struct btrfs_delayed_ref_node, ref_node);
+		node = rb_next(node);
 		if (seq && next->seq >= seq)
-			goto next;
-
-		if (next->type != ref->type)
-			goto next;
-
-		if ((ref->type == BTRFS_TREE_BLOCK_REF_KEY ||
-		     ref->type == BTRFS_SHARED_BLOCK_REF_KEY) &&
-		    comp_tree_refs(btrfs_delayed_node_to_tree_ref(ref),
-				   btrfs_delayed_node_to_tree_ref(next),
-				   ref->type))
-			goto next;
-		if ((ref->type == BTRFS_EXTENT_DATA_REF_KEY ||
-		     ref->type == BTRFS_SHARED_DATA_REF_KEY) &&
-		    comp_data_refs(btrfs_delayed_node_to_data_ref(ref),
-				   btrfs_delayed_node_to_data_ref(next)))
-			goto next;
+			break;
+		if (comp_refs(ref, next, false))
+			break;
 
 		if (ref->action == next->action) {
 			mod = next->ref_mod;
@@ -259,8 +293,6 @@ static bool merge_ref(struct btrfs_trans_handle *trans,
 			WARN_ON(ref->type == BTRFS_TREE_BLOCK_REF_KEY ||
 				ref->type == BTRFS_SHARED_BLOCK_REF_KEY);
 		}
-next:
-		next = next2;
 	}
 
 	return done;
@@ -272,11 +304,12 @@ void btrfs_merge_delayed_refs(struct btrfs_trans_handle *trans,
 			      struct btrfs_delayed_ref_head *head)
 {
 	struct btrfs_delayed_ref_node *ref;
+	struct rb_node *node;
 	u64 seq = 0;
 
 	assert_spin_locked(&head->lock);
 
-	if (list_empty(&head->ref_list))
+	if (RB_EMPTY_ROOT(&head->ref_tree))
 		return;
 
 	/* We don't have too many refs to merge for data. */
@@ -293,22 +326,13 @@ void btrfs_merge_delayed_refs(struct btrfs_trans_handle *trans,
 	}
 	spin_unlock(&fs_info->tree_mod_seq_lock);
 
-	ref = list_first_entry(&head->ref_list, struct btrfs_delayed_ref_node,
-			       list);
-	while (&ref->list != &head->ref_list) {
+again:
+	for (node = rb_first(&head->ref_tree); node; node = rb_next(node)) {
+		ref = rb_entry(node, struct btrfs_delayed_ref_node, ref_node);
 		if (seq && ref->seq >= seq)
-			goto next;
-
-		if (merge_ref(trans, delayed_refs, head, ref, seq)) {
-			if (list_empty(&head->ref_list))
-				break;
-			ref = list_first_entry(&head->ref_list,
-					       struct btrfs_delayed_ref_node,
-					       list);
 			continue;
-		}
-next:
-		ref = list_next_entry(ref, list);
+		if (merge_ref(trans, delayed_refs, head, ref, seq))
+			goto again;
 	}
 }
 
@@ -380,8 +404,8 @@ again:
 	head->processing = 1;
 	WARN_ON(delayed_refs->num_heads_ready == 0);
 	delayed_refs->num_heads_ready--;
-	delayed_refs->run_delayed_start = head->node.bytenr +
-		head->node.num_bytes;
+	delayed_refs->run_delayed_start = head->bytenr +
+		head->num_bytes;
 	return head;
 }
 
@@ -391,37 +415,19 @@ again:
  * Return 0 for insert.
  * Return >0 for merge.
  */
-static int
-add_delayed_ref_tail_merge(struct btrfs_trans_handle *trans,
-			   struct btrfs_delayed_ref_root *root,
-			   struct btrfs_delayed_ref_head *href,
-			   struct btrfs_delayed_ref_node *ref)
+static int insert_delayed_ref(struct btrfs_trans_handle *trans,
+			      struct btrfs_delayed_ref_root *root,
+			      struct btrfs_delayed_ref_head *href,
+			      struct btrfs_delayed_ref_node *ref)
 {
 	struct btrfs_delayed_ref_node *exist;
 	int mod;
 	int ret = 0;
 
 	spin_lock(&href->lock);
-	/* Check whether we can merge the tail node with ref */
-	if (list_empty(&href->ref_list))
-		goto add_tail;
-	exist = list_entry(href->ref_list.prev, struct btrfs_delayed_ref_node,
-			   list);
-	/* No need to compare bytenr nor is_head */
-	if (exist->type != ref->type || exist->seq != ref->seq)
-		goto add_tail;
-
-	if ((exist->type == BTRFS_TREE_BLOCK_REF_KEY ||
-	     exist->type == BTRFS_SHARED_BLOCK_REF_KEY) &&
-	    comp_tree_refs(btrfs_delayed_node_to_tree_ref(exist),
-			   btrfs_delayed_node_to_tree_ref(ref),
-			   ref->type))
-		goto add_tail;
-	if ((exist->type == BTRFS_EXTENT_DATA_REF_KEY ||
-	     exist->type == BTRFS_SHARED_DATA_REF_KEY) &&
-	    comp_data_refs(btrfs_delayed_node_to_data_ref(exist),
-			   btrfs_delayed_node_to_data_ref(ref)))
-		goto add_tail;
+	exist = tree_insert(&href->ref_tree, ref);
+	if (!exist)
+		goto inserted;
 
 	/* Now we are sure we can merge */
 	ret = 1;
@@ -452,9 +458,7 @@ add_delayed_ref_tail_merge(struct btrfs_trans_handle *trans,
 		drop_delayed_ref(trans, root, href, exist);
 	spin_unlock(&href->lock);
 	return ret;
-
-add_tail:
-	list_add_tail(&ref->list, &href->ref_list);
+inserted:
 	if (ref->action == BTRFS_ADD_DELAYED_REF)
 		list_add_tail(&ref->add_list, &href->ref_add_list);
 	atomic_inc(&root->num_entries);
@@ -469,20 +473,16 @@ add_tail:
  */
 static noinline void
 update_existing_head_ref(struct btrfs_delayed_ref_root *delayed_refs,
-			 struct btrfs_delayed_ref_node *existing,
-			 struct btrfs_delayed_ref_node *update,
+			 struct btrfs_delayed_ref_head *existing,
+			 struct btrfs_delayed_ref_head *update,
 			 int *old_ref_mod_ret)
 {
-	struct btrfs_delayed_ref_head *existing_ref;
-	struct btrfs_delayed_ref_head *ref;
 	int old_ref_mod;
 
-	existing_ref = btrfs_delayed_node_to_head(existing);
-	ref = btrfs_delayed_node_to_head(update);
-	BUG_ON(existing_ref->is_data != ref->is_data);
+	BUG_ON(existing->is_data != update->is_data);
 
-	spin_lock(&existing_ref->lock);
-	if (ref->must_insert_reserved) {
+	spin_lock(&existing->lock);
+	if (update->must_insert_reserved) {
 		/* if the extent was freed and then
 		 * reallocated before the delayed ref
 		 * entries were processed, we can end up
@@ -490,7 +490,7 @@ update_existing_head_ref(struct btrfs_delayed_ref_root *delayed_refs,
 		 * the must_insert_reserved flag set.
 		 * Set it again here
 		 */
-		existing_ref->must_insert_reserved = ref->must_insert_reserved;
+		existing->must_insert_reserved = update->must_insert_reserved;
 
 		/*
 		 * update the num_bytes so we make sure the accounting
@@ -500,22 +500,22 @@ update_existing_head_ref(struct btrfs_delayed_ref_root *delayed_refs,
 
 	}
 
-	if (ref->extent_op) {
-		if (!existing_ref->extent_op) {
-			existing_ref->extent_op = ref->extent_op;
+	if (update->extent_op) {
+		if (!existing->extent_op) {
+			existing->extent_op = update->extent_op;
 		} else {
-			if (ref->extent_op->update_key) {
-				memcpy(&existing_ref->extent_op->key,
-				       &ref->extent_op->key,
-				       sizeof(ref->extent_op->key));
-				existing_ref->extent_op->update_key = true;
+			if (update->extent_op->update_key) {
+				memcpy(&existing->extent_op->key,
+				       &update->extent_op->key,
+				       sizeof(update->extent_op->key));
+				existing->extent_op->update_key = true;
 			}
-			if (ref->extent_op->update_flags) {
-				existing_ref->extent_op->flags_to_set |=
-					ref->extent_op->flags_to_set;
-				existing_ref->extent_op->update_flags = true;
+			if (update->extent_op->update_flags) {
+				existing->extent_op->flags_to_set |=
+					update->extent_op->flags_to_set;
+				existing->extent_op->update_flags = true;
 			}
-			btrfs_free_delayed_extent_op(ref->extent_op);
+			btrfs_free_delayed_extent_op(update->extent_op);
 		}
 	}
 	/*
@@ -523,23 +523,23 @@ update_existing_head_ref(struct btrfs_delayed_ref_root *delayed_refs,
 	 * only need the lock for this case cause we could be processing it
 	 * currently, for refs we just added we know we're a-ok.
 	 */
-	old_ref_mod = existing_ref->total_ref_mod;
+	old_ref_mod = existing->total_ref_mod;
 	if (old_ref_mod_ret)
 		*old_ref_mod_ret = old_ref_mod;
 	existing->ref_mod += update->ref_mod;
-	existing_ref->total_ref_mod += update->ref_mod;
+	existing->total_ref_mod += update->ref_mod;
 
 	/*
 	 * If we are going to from a positive ref mod to a negative or vice
 	 * versa we need to make sure to adjust pending_csums accordingly.
 	 */
-	if (existing_ref->is_data) {
-		if (existing_ref->total_ref_mod >= 0 && old_ref_mod < 0)
+	if (existing->is_data) {
+		if (existing->total_ref_mod >= 0 && old_ref_mod < 0)
 			delayed_refs->pending_csums -= existing->num_bytes;
-		if (existing_ref->total_ref_mod < 0 && old_ref_mod >= 0)
+		if (existing->total_ref_mod < 0 && old_ref_mod >= 0)
 			delayed_refs->pending_csums += existing->num_bytes;
 	}
-	spin_unlock(&existing_ref->lock);
+	spin_unlock(&existing->lock);
 }
 
 /*
@@ -550,14 +550,13 @@ update_existing_head_ref(struct btrfs_delayed_ref_root *delayed_refs,
 static noinline struct btrfs_delayed_ref_head *
 add_delayed_ref_head(struct btrfs_fs_info *fs_info,
 		     struct btrfs_trans_handle *trans,
-		     struct btrfs_delayed_ref_node *ref,
+		     struct btrfs_delayed_ref_head *head_ref,
 		     struct btrfs_qgroup_extent_record *qrecord,
 		     u64 bytenr, u64 num_bytes, u64 ref_root, u64 reserved,
 		     int action, int is_data, int *qrecord_inserted_ret,
 		     int *old_ref_mod, int *new_ref_mod)
 {
 	struct btrfs_delayed_ref_head *existing;
-	struct btrfs_delayed_ref_head *head_ref = NULL;
 	struct btrfs_delayed_ref_root *delayed_refs;
 	int count_mod = 1;
 	int must_insert_reserved = 0;
@@ -593,26 +592,21 @@ add_delayed_ref_head(struct btrfs_fs_info *fs_info,
 
 	delayed_refs = &trans->transaction->delayed_refs;
 
-	/* first set the basic ref node struct up */
-	refcount_set(&ref->refs, 1);
-	ref->bytenr = bytenr;
-	ref->num_bytes = num_bytes;
-	ref->ref_mod = count_mod;
-	ref->type  = 0;
-	ref->action  = 0;
-	ref->is_head = 1;
-	ref->in_tree = 1;
-	ref->seq = 0;
-
-	head_ref = btrfs_delayed_node_to_head(ref);
+	refcount_set(&head_ref->refs, 1);
+	head_ref->bytenr = bytenr;
+	head_ref->num_bytes = num_bytes;
+	head_ref->ref_mod = count_mod;
 	head_ref->must_insert_reserved = must_insert_reserved;
 	head_ref->is_data = is_data;
-	INIT_LIST_HEAD(&head_ref->ref_list);
+	head_ref->ref_tree = RB_ROOT;
 	INIT_LIST_HEAD(&head_ref->ref_add_list);
+	RB_CLEAR_NODE(&head_ref->href_node);
 	head_ref->processing = 0;
 	head_ref->total_ref_mod = count_mod;
 	head_ref->qgroup_reserved = 0;
 	head_ref->qgroup_ref_root = 0;
+	spin_lock_init(&head_ref->lock);
+	mutex_init(&head_ref->mutex);
 
 	/* Record qgroup extent info if provided */
 	if (qrecord) {
@@ -632,17 +626,14 @@ add_delayed_ref_head(struct btrfs_fs_info *fs_info,
 			qrecord_inserted = 1;
 	}
 
-	spin_lock_init(&head_ref->lock);
-	mutex_init(&head_ref->mutex);
-
-	trace_add_delayed_ref_head(fs_info, ref, head_ref, action);
+	trace_add_delayed_ref_head(fs_info, head_ref, action);
 
 	existing = htree_insert(&delayed_refs->href_root,
 				&head_ref->href_node);
 	if (existing) {
 		WARN_ON(ref_root && reserved && existing->qgroup_ref_root
 			&& existing->qgroup_reserved);
-		update_existing_head_ref(delayed_refs, &existing->node, ref,
+		update_existing_head_ref(delayed_refs, existing, head_ref,
 					 old_ref_mod);
 		/*
 		 * we've updated the existing ref, free the newly
@@ -699,7 +690,7 @@ add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
 	ref->is_head = 0;
 	ref->in_tree = 1;
 	ref->seq = seq;
-	INIT_LIST_HEAD(&ref->list);
+	RB_CLEAR_NODE(&ref->ref_node);
 	INIT_LIST_HEAD(&ref->add_list);
 
 	full_ref = btrfs_delayed_node_to_tree_ref(ref);
@@ -713,7 +704,7 @@ add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
 
 	trace_add_delayed_tree_ref(fs_info, ref, full_ref, action);
 
-	ret = add_delayed_ref_tail_merge(trans, delayed_refs, head_ref, ref);
+	ret = insert_delayed_ref(trans, delayed_refs, head_ref, ref);
 
 	/*
 	 * XXX: memory should be freed at the same level allocated.
@@ -756,7 +747,7 @@ add_delayed_data_ref(struct btrfs_fs_info *fs_info,
 	ref->is_head = 0;
 	ref->in_tree = 1;
 	ref->seq = seq;
-	INIT_LIST_HEAD(&ref->list);
+	RB_CLEAR_NODE(&ref->ref_node);
 	INIT_LIST_HEAD(&ref->add_list);
 
 	full_ref = btrfs_delayed_node_to_data_ref(ref);
@@ -772,8 +763,7 @@ add_delayed_data_ref(struct btrfs_fs_info *fs_info,
 
 	trace_add_delayed_data_ref(fs_info, ref, full_ref, action);
 
-	ret = add_delayed_ref_tail_merge(trans, delayed_refs, head_ref, ref);
-
+	ret = insert_delayed_ref(trans, delayed_refs, head_ref, ref);
 	if (ret > 0)
 		kmem_cache_free(btrfs_delayed_data_ref_cachep, full_ref);
 }
@@ -821,7 +811,7 @@ int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
 	 * insert both the head node and the new ref without dropping
 	 * the spin lock
 	 */
-	head_ref = add_delayed_ref_head(fs_info, trans, &head_ref->node, record,
+	head_ref = add_delayed_ref_head(fs_info, trans, head_ref, record,
 					bytenr, num_bytes, 0, 0, action, 0,
 					&qrecord_inserted, old_ref_mod,
 					new_ref_mod);
@@ -888,7 +878,7 @@ int btrfs_add_delayed_data_ref(struct btrfs_fs_info *fs_info,
 	 * insert both the head node and the new ref without dropping
 	 * the spin lock
 	 */
-	head_ref = add_delayed_ref_head(fs_info, trans, &head_ref->node, record,
+	head_ref = add_delayed_ref_head(fs_info, trans, head_ref, record,
 					bytenr, num_bytes, ref_root, reserved,
 					action, 1, &qrecord_inserted,
 					old_ref_mod, new_ref_mod);
@@ -920,7 +910,7 @@ int btrfs_add_delayed_extent_op(struct btrfs_fs_info *fs_info,
 	delayed_refs = &trans->transaction->delayed_refs;
 	spin_lock(&delayed_refs->lock);
 
-	add_delayed_ref_head(fs_info, trans, &head_ref->node, NULL, bytenr,
+	add_delayed_ref_head(fs_info, trans, head_ref, NULL, bytenr,
 			     num_bytes, 0, 0, BTRFS_UPDATE_DELAYED_HEAD,
 			     extent_op->is_data, NULL, NULL, NULL);
 
diff --git a/fs/btrfs/delayed-ref.h b/fs/btrfs/delayed-ref.h
index ce88e4ac5276..a43af432f859 100644
--- a/fs/btrfs/delayed-ref.h
+++ b/fs/btrfs/delayed-ref.h
@@ -26,18 +26,8 @@
 #define BTRFS_ADD_DELAYED_EXTENT 3 /* record a full extent allocation */
 #define BTRFS_UPDATE_DELAYED_HEAD 4 /* not changing ref count on head ref */
 
-/*
- * XXX: Qu: I really hate the design that ref_head and tree/data ref shares the
- * same ref_node structure.
- * Ref_head is in a higher logic level than tree/data ref, and duplicated
- * bytenr/num_bytes in ref_node is really a waste or memory, they should be
- * referred from ref_head.
- * This gets more disgusting after we use list to store tree/data ref in
- * ref_head. Must clean this mess up later.
- */
 struct btrfs_delayed_ref_node {
-	/*data/tree ref use list, stored in ref_head->ref_list. */
-	struct list_head list;
+	struct rb_node ref_node;
 	/*
 	 * If action is BTRFS_ADD_DELAYED_REF, also link this node to
 	 * ref_head->ref_add_list, then we do not need to iterate the
@@ -91,8 +81,9 @@ struct btrfs_delayed_extent_op {
  * reference count modifications we've queued up.
  */
 struct btrfs_delayed_ref_head {
-	struct btrfs_delayed_ref_node node;
-
+	u64 bytenr;
+	u64 num_bytes;
+	refcount_t refs;
 	/*
 	 * the mutex is held while running the refs, and it is also
 	 * held when checking the sum of reference modifications.
@@ -100,7 +91,7 @@ struct btrfs_delayed_ref_head {
 	struct mutex mutex;
 
 	spinlock_t lock;
-	struct list_head ref_list;
+	struct rb_root ref_tree;
 	/* accumulate add BTRFS_ADD_DELAYED_REF nodes to this ref_add_list. */
 	struct list_head ref_add_list;
 
@@ -116,6 +107,14 @@ struct btrfs_delayed_ref_head {
 	int total_ref_mod;
 
 	/*
+	 * This is the current outstanding mod references for this bytenr.  This
+	 * is used with lookup_extent_info to get an accurate reference count
+	 * for a bytenr, so it is adjusted as delayed refs are run so that any
+	 * on disk reference count + ref_mod is accurate.
+	 */
+	int ref_mod;
+
+	/*
 	 * For qgroup reserved space freeing.
 	 *
 	 * ref_root and reserved will be recorded after
@@ -234,15 +233,18 @@ static inline void btrfs_put_delayed_ref(struct btrfs_delayed_ref_node *ref)
 		case BTRFS_SHARED_DATA_REF_KEY:
 			kmem_cache_free(btrfs_delayed_data_ref_cachep, ref);
 			break;
-		case 0:
-			kmem_cache_free(btrfs_delayed_ref_head_cachep, ref);
-			break;
 		default:
 			BUG();
 		}
 	}
 }
 
+static inline void btrfs_put_delayed_ref_head(struct btrfs_delayed_ref_head *head)
+{
+	if (refcount_dec_and_test(&head->refs))
+		kmem_cache_free(btrfs_delayed_ref_head_cachep, head);
+}
+
 int btrfs_add_delayed_tree_ref(struct btrfs_fs_info *fs_info,
 			       struct btrfs_trans_handle *trans,
 			       u64 bytenr, u64 num_bytes, u64 parent,
@@ -283,35 +285,17 @@ int btrfs_check_delayed_seq(struct btrfs_fs_info *fs_info,
 			    u64 seq);
 
 /*
- * a node might live in a head or a regular ref, this lets you
- * test for the proper type to use.
- */
-static int btrfs_delayed_ref_is_head(struct btrfs_delayed_ref_node *node)
-{
-	return node->is_head;
-}
-
-/*
  * helper functions to cast a node into its container
  */
 static inline struct btrfs_delayed_tree_ref *
 btrfs_delayed_node_to_tree_ref(struct btrfs_delayed_ref_node *node)
 {
-	WARN_ON(btrfs_delayed_ref_is_head(node));
 	return container_of(node, struct btrfs_delayed_tree_ref, node);
 }
 
 static inline struct btrfs_delayed_data_ref *
 btrfs_delayed_node_to_data_ref(struct btrfs_delayed_ref_node *node)
 {
-	WARN_ON(btrfs_delayed_ref_is_head(node));
 	return container_of(node, struct btrfs_delayed_data_ref, node);
 }
-
-static inline struct btrfs_delayed_ref_head *
-btrfs_delayed_node_to_head(struct btrfs_delayed_ref_node *node)
-{
-	WARN_ON(!btrfs_delayed_ref_is_head(node));
-	return container_of(node, struct btrfs_delayed_ref_head, node);
-}
 #endif
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 7a93a3e1a847..7c655f9a7a50 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -704,7 +704,7 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
 	u64 result;
 	int ret;
 
-	if (fs_info->sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(fs_info->sb))
 		return -EROFS;
 
 	mutex_lock(&dev_replace->lock_finishing_cancel_unmount);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 46329524dd5f..efce9a2fa9be 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -50,6 +50,8 @@
 #include "sysfs.h"
 #include "qgroup.h"
 #include "compression.h"
+#include "tree-checker.h"
+#include "ref-verify.h"
 
 #ifdef CONFIG_X86
 #include <asm/cpufeature.h>
@@ -543,146 +545,6 @@ static int check_tree_block_fsid(struct btrfs_fs_info *fs_info,
 	return ret;
 }
 
-#define CORRUPT(reason, eb, root, slot)					\
-	btrfs_crit(root->fs_info,					\
-		   "corrupt %s, %s: block=%llu, root=%llu, slot=%d",	\
-		   btrfs_header_level(eb) == 0 ? "leaf" : "node",	\
-		   reason, btrfs_header_bytenr(eb), root->objectid, slot)
-
-static noinline int check_leaf(struct btrfs_root *root,
-			       struct extent_buffer *leaf)
-{
-	struct btrfs_fs_info *fs_info = root->fs_info;
-	struct btrfs_key key;
-	struct btrfs_key leaf_key;
-	u32 nritems = btrfs_header_nritems(leaf);
-	int slot;
-
-	/*
-	 * Extent buffers from a relocation tree have a owner field that
-	 * corresponds to the subvolume tree they are based on. So just from an
-	 * extent buffer alone we can not find out what is the id of the
-	 * corresponding subvolume tree, so we can not figure out if the extent
-	 * buffer corresponds to the root of the relocation tree or not. So skip
-	 * this check for relocation trees.
-	 */
-	if (nritems == 0 && !btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_RELOC)) {
-		struct btrfs_root *check_root;
-
-		key.objectid = btrfs_header_owner(leaf);
-		key.type = BTRFS_ROOT_ITEM_KEY;
-		key.offset = (u64)-1;
-
-		check_root = btrfs_get_fs_root(fs_info, &key, false);
-		/*
-		 * The only reason we also check NULL here is that during
-		 * open_ctree() some roots has not yet been set up.
-		 */
-		if (!IS_ERR_OR_NULL(check_root)) {
-			struct extent_buffer *eb;
-
-			eb = btrfs_root_node(check_root);
-			/* if leaf is the root, then it's fine */
-			if (leaf != eb) {
-				CORRUPT("non-root leaf's nritems is 0",
-					leaf, check_root, 0);
-				free_extent_buffer(eb);
-				return -EIO;
-			}
-			free_extent_buffer(eb);
-		}
-		return 0;
-	}
-
-	if (nritems == 0)
-		return 0;
-
-	/* Check the 0 item */
-	if (btrfs_item_offset_nr(leaf, 0) + btrfs_item_size_nr(leaf, 0) !=
-	    BTRFS_LEAF_DATA_SIZE(fs_info)) {
-		CORRUPT("invalid item offset size pair", leaf, root, 0);
-		return -EIO;
-	}
-
-	/*
-	 * Check to make sure each items keys are in the correct order and their
-	 * offsets make sense.  We only have to loop through nritems-1 because
-	 * we check the current slot against the next slot, which verifies the
-	 * next slot's offset+size makes sense and that the current's slot
-	 * offset is correct.
-	 */
-	for (slot = 0; slot < nritems - 1; slot++) {
-		btrfs_item_key_to_cpu(leaf, &leaf_key, slot);
-		btrfs_item_key_to_cpu(leaf, &key, slot + 1);
-
-		/* Make sure the keys are in the right order */
-		if (btrfs_comp_cpu_keys(&leaf_key, &key) >= 0) {
-			CORRUPT("bad key order", leaf, root, slot);
-			return -EIO;
-		}
-
-		/*
-		 * Make sure the offset and ends are right, remember that the
-		 * item data starts at the end of the leaf and grows towards the
-		 * front.
-		 */
-		if (btrfs_item_offset_nr(leaf, slot) !=
-			btrfs_item_end_nr(leaf, slot + 1)) {
-			CORRUPT("slot offset bad", leaf, root, slot);
-			return -EIO;
-		}
-
-		/*
-		 * Check to make sure that we don't point outside of the leaf,
-		 * just in case all the items are consistent to each other, but
-		 * all point outside of the leaf.
-		 */
-		if (btrfs_item_end_nr(leaf, slot) >
-		    BTRFS_LEAF_DATA_SIZE(fs_info)) {
-			CORRUPT("slot end outside of leaf", leaf, root, slot);
-			return -EIO;
-		}
-	}
-
-	return 0;
-}
-
-static int check_node(struct btrfs_root *root, struct extent_buffer *node)
-{
-	unsigned long nr = btrfs_header_nritems(node);
-	struct btrfs_key key, next_key;
-	int slot;
-	u64 bytenr;
-	int ret = 0;
-
-	if (nr == 0 || nr > BTRFS_NODEPTRS_PER_BLOCK(root->fs_info)) {
-		btrfs_crit(root->fs_info,
-			   "corrupt node: block %llu root %llu nritems %lu",
-			   node->start, root->objectid, nr);
-		return -EIO;
-	}
-
-	for (slot = 0; slot < nr - 1; slot++) {
-		bytenr = btrfs_node_blockptr(node, slot);
-		btrfs_node_key_to_cpu(node, &key, slot);
-		btrfs_node_key_to_cpu(node, &next_key, slot + 1);
-
-		if (!bytenr) {
-			CORRUPT("invalid item slot", node, root, slot);
-			ret = -EIO;
-			goto out;
-		}
-
-		if (btrfs_comp_cpu_keys(&key, &next_key) >= 0) {
-			CORRUPT("bad key order", node, root, slot);
-			ret = -EIO;
-			goto out;
-		}
-	}
-out:
-	return ret;
-}
-
 static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
 				      u64 phy_offset, struct page *page,
 				      u64 start, u64 end, int mirror)
@@ -748,12 +610,12 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
 	 * that we don't try and read the other copies of this block, just
 	 * return -EIO.
 	 */
-	if (found_level == 0 && check_leaf(root, eb)) {
+	if (found_level == 0 && btrfs_check_leaf(root, eb)) {
 		set_bit(EXTENT_BUFFER_CORRUPT, &eb->bflags);
 		ret = -EIO;
 	}
 
-	if (found_level > 0 && check_node(root, eb))
+	if (found_level > 0 && btrfs_check_node(root, eb))
 		ret = -EIO;
 
 	if (!ret)
@@ -879,22 +741,9 @@ static void run_one_async_start(struct btrfs_work *work)
 
 static void run_one_async_done(struct btrfs_work *work)
 {
-	struct btrfs_fs_info *fs_info;
 	struct async_submit_bio *async;
-	int limit;
 
 	async = container_of(work, struct  async_submit_bio, work);
-	fs_info = async->fs_info;
-
-	limit = btrfs_async_submit_limit(fs_info);
-	limit = limit * 2 / 3;
-
-	/*
-	 * atomic_dec_return implies a barrier for waitqueue_active
-	 */
-	if (atomic_dec_return(&fs_info->nr_async_submits) < limit &&
-	    waitqueue_active(&fs_info->async_submit_wait))
-		wake_up(&fs_info->async_submit_wait);
 
 	/* If an error occurred we just want to clean up the bio and move on */
 	if (async->status) {
@@ -942,19 +791,10 @@ blk_status_t btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
 
 	async->status = 0;
 
-	atomic_inc(&fs_info->nr_async_submits);
-
 	if (op_is_sync(bio->bi_opf))
 		btrfs_set_work_high_priority(&async->work);
 
 	btrfs_queue_work(fs_info->workers, &async->work);
-
-	while (atomic_read(&fs_info->async_submit_draining) &&
-	      atomic_read(&fs_info->nr_async_submits)) {
-		wait_event(fs_info->async_submit_wait,
-			   (atomic_read(&fs_info->nr_async_submits) == 0));
-	}
-
 	return 0;
 }
 
@@ -1005,9 +845,9 @@ static blk_status_t __btree_submit_bio_done(void *private_data, struct bio *bio,
 	return ret;
 }
 
-static int check_async_write(unsigned long bio_flags)
+static int check_async_write(struct btrfs_inode *bi)
 {
-	if (bio_flags & EXTENT_BIO_TREE_LOG)
+	if (atomic_read(&bi->sync_writers))
 		return 0;
 #ifdef CONFIG_X86
 	if (static_cpu_has(X86_FEATURE_XMM4_2))
@@ -1022,7 +862,7 @@ static blk_status_t btree_submit_bio_hook(void *private_data, struct bio *bio,
 {
 	struct inode *inode = private_data;
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
-	int async = check_async_write(bio_flags);
+	int async = check_async_write(BTRFS_I(inode));
 	blk_status_t ret;
 
 	if (bio_op(bio) != REQ_OP_WRITE) {
@@ -2478,7 +2318,7 @@ static int btrfs_replay_log(struct btrfs_fs_info *fs_info,
 		return ret;
 	}
 
-	if (fs_info->sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(fs_info->sb)) {
 		ret = btrfs_commit_super(fs_info);
 		if (ret)
 			return ret;
@@ -2607,14 +2447,6 @@ int open_ctree(struct super_block *sb,
 		goto fail_delalloc_bytes;
 	}
 
-	fs_info->btree_inode = new_inode(sb);
-	if (!fs_info->btree_inode) {
-		err = -ENOMEM;
-		goto fail_bio_counter;
-	}
-
-	mapping_set_gfp_mask(fs_info->btree_inode->i_mapping, GFP_NOFS);
-
 	INIT_RADIX_TREE(&fs_info->fs_roots_radix, GFP_ATOMIC);
 	INIT_RADIX_TREE(&fs_info->buffer_radix, GFP_ATOMIC);
 	INIT_LIST_HEAD(&fs_info->trans_list);
@@ -2647,17 +2479,12 @@ int open_ctree(struct super_block *sb,
 	btrfs_mapping_init(&fs_info->mapping_tree);
 	btrfs_init_block_rsv(&fs_info->global_block_rsv,
 			     BTRFS_BLOCK_RSV_GLOBAL);
-	btrfs_init_block_rsv(&fs_info->delalloc_block_rsv,
-			     BTRFS_BLOCK_RSV_DELALLOC);
 	btrfs_init_block_rsv(&fs_info->trans_block_rsv, BTRFS_BLOCK_RSV_TRANS);
 	btrfs_init_block_rsv(&fs_info->chunk_block_rsv, BTRFS_BLOCK_RSV_CHUNK);
 	btrfs_init_block_rsv(&fs_info->empty_block_rsv, BTRFS_BLOCK_RSV_EMPTY);
 	btrfs_init_block_rsv(&fs_info->delayed_block_rsv,
 			     BTRFS_BLOCK_RSV_DELOPS);
-	atomic_set(&fs_info->nr_async_submits, 0);
 	atomic_set(&fs_info->async_delalloc_pages, 0);
-	atomic_set(&fs_info->async_submit_draining, 0);
-	atomic_set(&fs_info->nr_async_bios, 0);
 	atomic_set(&fs_info->defrag_running, 0);
 	atomic_set(&fs_info->qgroup_op_seq, 0);
 	atomic_set(&fs_info->reada_works_cnt, 0);
@@ -2673,12 +2500,21 @@ int open_ctree(struct super_block *sb,
 	/* readahead state */
 	INIT_RADIX_TREE(&fs_info->reada_tree, GFP_NOFS & ~__GFP_DIRECT_RECLAIM);
 	spin_lock_init(&fs_info->reada_lock);
+	btrfs_init_ref_verify(fs_info);
 
 	fs_info->thread_pool_size = min_t(unsigned long,
 					  num_online_cpus() + 2, 8);
 
 	INIT_LIST_HEAD(&fs_info->ordered_roots);
 	spin_lock_init(&fs_info->ordered_root_lock);
+
+	fs_info->btree_inode = new_inode(sb);
+	if (!fs_info->btree_inode) {
+		err = -ENOMEM;
+		goto fail_bio_counter;
+	}
+	mapping_set_gfp_mask(fs_info->btree_inode->i_mapping, GFP_NOFS);
+
 	fs_info->delayed_root = kmalloc(sizeof(struct btrfs_delayed_root),
 					GFP_KERNEL);
 	if (!fs_info->delayed_root) {
@@ -2828,6 +2664,8 @@ int open_ctree(struct super_block *sb,
 	features |= BTRFS_FEATURE_INCOMPAT_MIXED_BACKREF;
 	if (fs_info->compress_type == BTRFS_COMPRESS_LZO)
 		features |= BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO;
+	else if (fs_info->compress_type == BTRFS_COMPRESS_ZSTD)
+		features |= BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD;
 
 	if (features & BTRFS_FEATURE_INCOMPAT_SKINNY_METADATA)
 		btrfs_info(fs_info, "has skinny extents");
@@ -2874,7 +2712,7 @@ int open_ctree(struct super_block *sb,
 
 	features = btrfs_super_compat_ro_flags(disk_super) &
 		~BTRFS_FEATURE_COMPAT_RO_SUPP;
-	if (!(sb->s_flags & MS_RDONLY) && features) {
+	if (!sb_rdonly(sb) && features) {
 		btrfs_err(fs_info,
 	"cannot mount read-write because of unsupported optional features (%llx)",
 		       features);
@@ -2893,12 +2731,13 @@ int open_ctree(struct super_block *sb,
 	sb->s_bdi->congested_fn = btrfs_congested_fn;
 	sb->s_bdi->congested_data = fs_info;
 	sb->s_bdi->capabilities |= BDI_CAP_CGROUP_WRITEBACK;
-	sb->s_bdi->ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_SIZE;
+	sb->s_bdi->ra_pages = VM_MAX_READAHEAD * SZ_1K / PAGE_SIZE;
 	sb->s_bdi->ra_pages *= btrfs_super_num_devices(disk_super);
 	sb->s_bdi->ra_pages = max(sb->s_bdi->ra_pages, SZ_4M / PAGE_SIZE);
 
 	sb->s_blocksize = sectorsize;
 	sb->s_blocksize_bits = blksize_bits(sectorsize);
+	memcpy(&sb->s_uuid, fs_info->fsid, BTRFS_FSID_SIZE);
 
 	mutex_lock(&fs_info->chunk_mutex);
 	ret = btrfs_read_sys_array(fs_info);
@@ -3036,7 +2875,7 @@ retry_root_backup:
 		goto fail_sysfs;
 	}
 
-	if (!(sb->s_flags & MS_RDONLY) && !btrfs_check_rw_degradable(fs_info)) {
+	if (!sb_rdonly(sb) && !btrfs_check_rw_degradable(fs_info)) {
 		btrfs_warn(fs_info,
 		"writeable mount is not allowed due to too many missing devices");
 		goto fail_sysfs;
@@ -3081,6 +2920,9 @@ retry_root_backup:
 	if (ret)
 		goto fail_trans_kthread;
 
+	if (btrfs_build_ref_tree(fs_info))
+		btrfs_err(fs_info, "couldn't build ref tree");
+
 	/* do not make disk changes in broken FS or nologreplay is given */
 	if (btrfs_super_log_root(disk_super) != 0 &&
 	    !btrfs_test_opt(fs_info, NOLOGREPLAY)) {
@@ -3095,7 +2937,7 @@ retry_root_backup:
 	if (ret)
 		goto fail_qgroup;
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		ret = btrfs_cleanup_fs_roots(fs_info);
 		if (ret)
 			goto fail_qgroup;
@@ -3121,7 +2963,7 @@ retry_root_backup:
 		goto fail_qgroup;
 	}
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	if (btrfs_test_opt(fs_info, CLEAR_CACHE) &&
@@ -3641,7 +3483,14 @@ int write_all_supers(struct btrfs_fs_info *fs_info, int max_mirrors)
 	u64 flags;
 
 	do_barriers = !btrfs_test_opt(fs_info, NOBARRIER);
-	backup_super_roots(fs_info);
+
+	/*
+	 * max_mirrors == 0 indicates we're from commit_transaction,
+	 * not from fsync where the tree roots in fs_info have not
+	 * been consistent on disk.
+	 */
+	if (max_mirrors == 0)
+		backup_super_roots(fs_info);
 
 	sb = fs_info->super_for_commit;
 	dev_item = &sb->dev_item;
@@ -3876,7 +3725,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
 
 	cancel_work_sync(&fs_info->async_reclaim_work);
 
-	if (!(fs_info->sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(fs_info->sb)) {
 		/*
 		 * If the cleaner thread is stopped and there are
 		 * block groups queued for removal, the deletion will be
@@ -3939,6 +3788,7 @@ void close_ctree(struct btrfs_fs_info *fs_info)
 	cleanup_srcu_struct(&fs_info->subvol_srcu);
 
 	btrfs_free_stripe_hash_table(fs_info);
+	btrfs_free_ref_cache(fs_info);
 
 	__btrfs_free_block_rsv(root->orphan_block_rsv);
 	root->orphan_block_rsv = NULL;
@@ -3998,7 +3848,7 @@ void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
 					 buf->len,
 					 fs_info->dirty_metadata_batch);
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
-	if (btrfs_header_level(buf) == 0 && check_leaf(root, buf)) {
+	if (btrfs_header_level(buf) == 0 && btrfs_check_leaf(root, buf)) {
 		btrfs_print_leaf(buf);
 		ASSERT(0);
 	}
@@ -4263,26 +4113,28 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 
 	while ((node = rb_first(&delayed_refs->href_root)) != NULL) {
 		struct btrfs_delayed_ref_head *head;
-		struct btrfs_delayed_ref_node *tmp;
+		struct rb_node *n;
 		bool pin_bytes = false;
 
 		head = rb_entry(node, struct btrfs_delayed_ref_head,
 				href_node);
 		if (!mutex_trylock(&head->mutex)) {
-			refcount_inc(&head->node.refs);
+			refcount_inc(&head->refs);
 			spin_unlock(&delayed_refs->lock);
 
 			mutex_lock(&head->mutex);
 			mutex_unlock(&head->mutex);
-			btrfs_put_delayed_ref(&head->node);
+			btrfs_put_delayed_ref_head(head);
 			spin_lock(&delayed_refs->lock);
 			continue;
 		}
 		spin_lock(&head->lock);
-		list_for_each_entry_safe_reverse(ref, tmp, &head->ref_list,
-						 list) {
+		while ((n = rb_first(&head->ref_tree)) != NULL) {
+			ref = rb_entry(n, struct btrfs_delayed_ref_node,
+				       ref_node);
 			ref->in_tree = 0;
-			list_del(&ref->list);
+			rb_erase(&ref->ref_node, &head->ref_tree);
+			RB_CLEAR_NODE(&ref->ref_node);
 			if (!list_empty(&ref->add_list))
 				list_del(&ref->add_list);
 			atomic_dec(&delayed_refs->num_entries);
@@ -4295,16 +4147,16 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 		if (head->processing == 0)
 			delayed_refs->num_heads_ready--;
 		atomic_dec(&delayed_refs->num_entries);
-		head->node.in_tree = 0;
 		rb_erase(&head->href_node, &delayed_refs->href_root);
+		RB_CLEAR_NODE(&head->href_node);
 		spin_unlock(&head->lock);
 		spin_unlock(&delayed_refs->lock);
 		mutex_unlock(&head->mutex);
 
 		if (pin_bytes)
-			btrfs_pin_extent(fs_info, head->node.bytenr,
-					 head->node.num_bytes, 1);
-		btrfs_put_delayed_ref(&head->node);
+			btrfs_pin_extent(fs_info, head->bytenr,
+					 head->num_bytes, 1);
+		btrfs_put_delayed_ref_head(head);
 		cond_resched();
 		spin_lock(&delayed_refs->lock);
 	}
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index fa66980726c9..3aeb5770f896 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/types.h>
 #include "ctree.h"
diff --git a/fs/btrfs/export.h b/fs/btrfs/export.h
index 074348a95841..91b3908e7c54 100644
--- a/fs/btrfs/export.h
+++ b/fs/btrfs/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BTRFS_EXPORT_H
 #define BTRFS_EXPORT_H
 
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index e2d7e86b51d1..673ac4e01dd0 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -26,6 +26,7 @@
 #include <linux/slab.h>
 #include <linux/ratelimit.h>
 #include <linux/percpu_counter.h>
+#include <linux/lockdep.h>
 #include "hash.h"
 #include "tree-log.h"
 #include "disk-io.h"
@@ -38,6 +39,7 @@
 #include "math.h"
 #include "sysfs.h"
 #include "qgroup.h"
+#include "ref-verify.h"
 
 #undef SCRAMBLE_DELAYED_REFS
 
@@ -61,9 +63,6 @@ enum {
 	CHUNK_ALLOC_FORCE = 2,
 };
 
-static int update_block_group(struct btrfs_trans_handle *trans,
-			      struct btrfs_fs_info *fs_info, u64 bytenr,
-			      u64 num_bytes, int alloc);
 static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 			       struct btrfs_fs_info *fs_info,
 				struct btrfs_delayed_ref_node *node, u64 parent,
@@ -91,17 +90,8 @@ static int find_next_key(struct btrfs_path *path, int level,
 static void dump_space_info(struct btrfs_fs_info *fs_info,
 			    struct btrfs_space_info *info, u64 bytes,
 			    int dump_block_groups);
-static int btrfs_add_reserved_bytes(struct btrfs_block_group_cache *cache,
-				    u64 ram_bytes, u64 num_bytes, int delalloc);
-static int btrfs_free_reserved_bytes(struct btrfs_block_group_cache *cache,
-				     u64 num_bytes, int delalloc);
 static int block_rsv_use_bytes(struct btrfs_block_rsv *block_rsv,
 			       u64 num_bytes);
-static int __reserve_metadata_bytes(struct btrfs_fs_info *fs_info,
-				    struct btrfs_space_info *space_info,
-				    u64 orig_bytes,
-				    enum btrfs_reserve_flush_enum flush,
-				    bool system_chunk);
 static void space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
 				     struct btrfs_space_info *space_info,
 				     u64 num_bytes);
@@ -652,7 +642,7 @@ static int cache_block_group(struct btrfs_block_group_cache *cache,
 	cache->cached = BTRFS_CACHE_FAST;
 	spin_unlock(&cache->lock);
 
-	if (fs_info->mount_opt & BTRFS_MOUNT_SPACE_CACHE) {
+	if (btrfs_test_opt(fs_info, SPACE_CACHE)) {
 		mutex_lock(&caching_ctl->mutex);
 		ret = load_free_space_cache(fs_info, cache);
 
@@ -923,7 +913,7 @@ search_again:
 	head = btrfs_find_delayed_ref_head(delayed_refs, bytenr);
 	if (head) {
 		if (!mutex_trylock(&head->mutex)) {
-			refcount_inc(&head->node.refs);
+			refcount_inc(&head->refs);
 			spin_unlock(&delayed_refs->lock);
 
 			btrfs_release_path(path);
@@ -934,7 +924,7 @@ search_again:
 			 */
 			mutex_lock(&head->mutex);
 			mutex_unlock(&head->mutex);
-			btrfs_put_delayed_ref(&head->node);
+			btrfs_put_delayed_ref_head(head);
 			goto search_again;
 		}
 		spin_lock(&head->lock);
@@ -943,7 +933,7 @@ search_again:
 		else
 			BUG_ON(num_refs == 0);
 
-		num_refs += head->node.ref_mod;
+		num_refs += head->ref_mod;
 		spin_unlock(&head->lock);
 		mutex_unlock(&head->mutex);
 	}
@@ -2189,16 +2179,20 @@ int btrfs_discard_extent(struct btrfs_fs_info *fs_info, u64 bytenr,
 
 /* Can return -ENOMEM */
 int btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
-			 struct btrfs_fs_info *fs_info,
+			 struct btrfs_root *root,
 			 u64 bytenr, u64 num_bytes, u64 parent,
 			 u64 root_objectid, u64 owner, u64 offset)
 {
+	struct btrfs_fs_info *fs_info = root->fs_info;
 	int old_ref_mod, new_ref_mod;
 	int ret;
 
 	BUG_ON(owner < BTRFS_FIRST_FREE_OBJECTID &&
 	       root_objectid == BTRFS_TREE_LOG_OBJECTID);
 
+	btrfs_ref_tree_mod(root, bytenr, num_bytes, parent, root_objectid,
+			   owner, offset, BTRFS_ADD_DELAYED_REF);
+
 	if (owner < BTRFS_FIRST_FREE_OBJECTID) {
 		ret = btrfs_add_delayed_tree_ref(fs_info, trans, bytenr,
 						 num_bytes, parent,
@@ -2344,7 +2338,7 @@ static void __run_delayed_extent_op(struct btrfs_delayed_extent_op *extent_op,
 
 static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
 				 struct btrfs_fs_info *fs_info,
-				 struct btrfs_delayed_ref_node *node,
+				 struct btrfs_delayed_ref_head *head,
 				 struct btrfs_delayed_extent_op *extent_op)
 {
 	struct btrfs_key key;
@@ -2366,14 +2360,14 @@ static int run_delayed_extent_op(struct btrfs_trans_handle *trans,
 	if (!path)
 		return -ENOMEM;
 
-	key.objectid = node->bytenr;
+	key.objectid = head->bytenr;
 
 	if (metadata) {
 		key.type = BTRFS_METADATA_ITEM_KEY;
 		key.offset = extent_op->level;
 	} else {
 		key.type = BTRFS_EXTENT_ITEM_KEY;
-		key.offset = node->num_bytes;
+		key.offset = head->num_bytes;
 	}
 
 again:
@@ -2390,17 +2384,17 @@ again:
 				path->slots[0]--;
 				btrfs_item_key_to_cpu(path->nodes[0], &key,
 						      path->slots[0]);
-				if (key.objectid == node->bytenr &&
+				if (key.objectid == head->bytenr &&
 				    key.type == BTRFS_EXTENT_ITEM_KEY &&
-				    key.offset == node->num_bytes)
+				    key.offset == head->num_bytes)
 					ret = 0;
 			}
 			if (ret > 0) {
 				btrfs_release_path(path);
 				metadata = 0;
 
-				key.objectid = node->bytenr;
-				key.offset = node->num_bytes;
+				key.objectid = head->bytenr;
+				key.offset = head->num_bytes;
 				key.type = BTRFS_EXTENT_ITEM_KEY;
 				goto again;
 			}
@@ -2507,44 +2501,6 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans,
 		return 0;
 	}
 
-	if (btrfs_delayed_ref_is_head(node)) {
-		struct btrfs_delayed_ref_head *head;
-		/*
-		 * we've hit the end of the chain and we were supposed
-		 * to insert this extent into the tree.  But, it got
-		 * deleted before we ever needed to insert it, so all
-		 * we have to do is clean up the accounting
-		 */
-		BUG_ON(extent_op);
-		head = btrfs_delayed_node_to_head(node);
-		trace_run_delayed_ref_head(fs_info, node, head, node->action);
-
-		if (head->total_ref_mod < 0) {
-			struct btrfs_block_group_cache *cache;
-
-			cache = btrfs_lookup_block_group(fs_info, node->bytenr);
-			ASSERT(cache);
-			percpu_counter_add(&cache->space_info->total_bytes_pinned,
-					   -node->num_bytes);
-			btrfs_put_block_group(cache);
-		}
-
-		if (insert_reserved) {
-			btrfs_pin_extent(fs_info, node->bytenr,
-					 node->num_bytes, 1);
-			if (head->is_data) {
-				ret = btrfs_del_csums(trans, fs_info,
-						      node->bytenr,
-						      node->num_bytes);
-			}
-		}
-
-		/* Also free its reserved qgroup space */
-		btrfs_qgroup_free_delayed_ref(fs_info, head->qgroup_ref_root,
-					      head->qgroup_reserved);
-		return ret;
-	}
-
 	if (node->type == BTRFS_TREE_BLOCK_REF_KEY ||
 	    node->type == BTRFS_SHARED_BLOCK_REF_KEY)
 		ret = run_delayed_tree_ref(trans, fs_info, node, extent_op,
@@ -2563,7 +2519,7 @@ select_delayed_ref(struct btrfs_delayed_ref_head *head)
 {
 	struct btrfs_delayed_ref_node *ref;
 
-	if (list_empty(&head->ref_list))
+	if (RB_EMPTY_ROOT(&head->ref_tree))
 		return NULL;
 
 	/*
@@ -2576,12 +2532,114 @@ select_delayed_ref(struct btrfs_delayed_ref_head *head)
 		return list_first_entry(&head->ref_add_list,
 				struct btrfs_delayed_ref_node, add_list);
 
-	ref = list_first_entry(&head->ref_list, struct btrfs_delayed_ref_node,
-			       list);
+	ref = rb_entry(rb_first(&head->ref_tree),
+		       struct btrfs_delayed_ref_node, ref_node);
 	ASSERT(list_empty(&ref->add_list));
 	return ref;
 }
 
+static void unselect_delayed_ref_head(struct btrfs_delayed_ref_root *delayed_refs,
+				      struct btrfs_delayed_ref_head *head)
+{
+	spin_lock(&delayed_refs->lock);
+	head->processing = 0;
+	delayed_refs->num_heads_ready++;
+	spin_unlock(&delayed_refs->lock);
+	btrfs_delayed_ref_unlock(head);
+}
+
+static int cleanup_extent_op(struct btrfs_trans_handle *trans,
+			     struct btrfs_fs_info *fs_info,
+			     struct btrfs_delayed_ref_head *head)
+{
+	struct btrfs_delayed_extent_op *extent_op = head->extent_op;
+	int ret;
+
+	if (!extent_op)
+		return 0;
+	head->extent_op = NULL;
+	if (head->must_insert_reserved) {
+		btrfs_free_delayed_extent_op(extent_op);
+		return 0;
+	}
+	spin_unlock(&head->lock);
+	ret = run_delayed_extent_op(trans, fs_info, head, extent_op);
+	btrfs_free_delayed_extent_op(extent_op);
+	return ret ? ret : 1;
+}
+
+static int cleanup_ref_head(struct btrfs_trans_handle *trans,
+			    struct btrfs_fs_info *fs_info,
+			    struct btrfs_delayed_ref_head *head)
+{
+	struct btrfs_delayed_ref_root *delayed_refs;
+	int ret;
+
+	delayed_refs = &trans->transaction->delayed_refs;
+
+	ret = cleanup_extent_op(trans, fs_info, head);
+	if (ret < 0) {
+		unselect_delayed_ref_head(delayed_refs, head);
+		btrfs_debug(fs_info, "run_delayed_extent_op returned %d", ret);
+		return ret;
+	} else if (ret) {
+		return ret;
+	}
+
+	/*
+	 * Need to drop our head ref lock and re-acquire the delayed ref lock
+	 * and then re-check to make sure nobody got added.
+	 */
+	spin_unlock(&head->lock);
+	spin_lock(&delayed_refs->lock);
+	spin_lock(&head->lock);
+	if (!RB_EMPTY_ROOT(&head->ref_tree) || head->extent_op) {
+		spin_unlock(&head->lock);
+		spin_unlock(&delayed_refs->lock);
+		return 1;
+	}
+	delayed_refs->num_heads--;
+	rb_erase(&head->href_node, &delayed_refs->href_root);
+	RB_CLEAR_NODE(&head->href_node);
+	spin_unlock(&delayed_refs->lock);
+	spin_unlock(&head->lock);
+	atomic_dec(&delayed_refs->num_entries);
+
+	trace_run_delayed_ref_head(fs_info, head, 0);
+
+	if (head->total_ref_mod < 0) {
+		struct btrfs_block_group_cache *cache;
+
+		cache = btrfs_lookup_block_group(fs_info, head->bytenr);
+		ASSERT(cache);
+		percpu_counter_add(&cache->space_info->total_bytes_pinned,
+				   -head->num_bytes);
+		btrfs_put_block_group(cache);
+
+		if (head->is_data) {
+			spin_lock(&delayed_refs->lock);
+			delayed_refs->pending_csums -= head->num_bytes;
+			spin_unlock(&delayed_refs->lock);
+		}
+	}
+
+	if (head->must_insert_reserved) {
+		btrfs_pin_extent(fs_info, head->bytenr,
+				 head->num_bytes, 1);
+		if (head->is_data) {
+			ret = btrfs_del_csums(trans, fs_info, head->bytenr,
+					      head->num_bytes);
+		}
+	}
+
+	/* Also free its reserved qgroup space */
+	btrfs_qgroup_free_delayed_ref(fs_info, head->qgroup_ref_root,
+				      head->qgroup_reserved);
+	btrfs_delayed_ref_unlock(head);
+	btrfs_put_delayed_ref_head(head);
+	return 0;
+}
+
 /*
  * Returns 0 on success or if called with an already aborted transaction.
  * Returns -ENOMEM or -EIO on failure and will abort the transaction.
@@ -2655,11 +2713,7 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
 		if (ref && ref->seq &&
 		    btrfs_check_delayed_seq(fs_info, delayed_refs, ref->seq)) {
 			spin_unlock(&locked_ref->lock);
-			spin_lock(&delayed_refs->lock);
-			locked_ref->processing = 0;
-			delayed_refs->num_heads_ready++;
-			spin_unlock(&delayed_refs->lock);
-			btrfs_delayed_ref_unlock(locked_ref);
+			unselect_delayed_ref_head(delayed_refs, locked_ref);
 			locked_ref = NULL;
 			cond_resched();
 			count++;
@@ -2667,102 +2721,55 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
 		}
 
 		/*
-		 * record the must insert reserved flag before we
-		 * drop the spin lock.
+		 * We're done processing refs in this ref_head, clean everything
+		 * up and move on to the next ref_head.
 		 */
-		must_insert_reserved = locked_ref->must_insert_reserved;
-		locked_ref->must_insert_reserved = 0;
-
-		extent_op = locked_ref->extent_op;
-		locked_ref->extent_op = NULL;
-
 		if (!ref) {
-
-
-			/* All delayed refs have been processed, Go ahead
-			 * and send the head node to run_one_delayed_ref,
-			 * so that any accounting fixes can happen
-			 */
-			ref = &locked_ref->node;
-
-			if (extent_op && must_insert_reserved) {
-				btrfs_free_delayed_extent_op(extent_op);
-				extent_op = NULL;
-			}
-
-			if (extent_op) {
-				spin_unlock(&locked_ref->lock);
-				ret = run_delayed_extent_op(trans, fs_info,
-							    ref, extent_op);
-				btrfs_free_delayed_extent_op(extent_op);
-
-				if (ret) {
-					/*
-					 * Need to reset must_insert_reserved if
-					 * there was an error so the abort stuff
-					 * can cleanup the reserved space
-					 * properly.
-					 */
-					if (must_insert_reserved)
-						locked_ref->must_insert_reserved = 1;
-					spin_lock(&delayed_refs->lock);
-					locked_ref->processing = 0;
-					delayed_refs->num_heads_ready++;
-					spin_unlock(&delayed_refs->lock);
-					btrfs_debug(fs_info,
-						    "run_delayed_extent_op returned %d",
-						    ret);
-					btrfs_delayed_ref_unlock(locked_ref);
-					return ret;
-				}
+			ret = cleanup_ref_head(trans, fs_info, locked_ref);
+			if (ret > 0 ) {
+				/* We dropped our lock, we need to loop. */
+				ret = 0;
 				continue;
+			} else if (ret) {
+				return ret;
 			}
+			locked_ref = NULL;
+			count++;
+			continue;
+		}
 
-			/*
-			 * Need to drop our head ref lock and re-acquire the
-			 * delayed ref lock and then re-check to make sure
-			 * nobody got added.
-			 */
-			spin_unlock(&locked_ref->lock);
-			spin_lock(&delayed_refs->lock);
-			spin_lock(&locked_ref->lock);
-			if (!list_empty(&locked_ref->ref_list) ||
-			    locked_ref->extent_op) {
-				spin_unlock(&locked_ref->lock);
-				spin_unlock(&delayed_refs->lock);
-				continue;
-			}
-			ref->in_tree = 0;
-			delayed_refs->num_heads--;
-			rb_erase(&locked_ref->href_node,
-				 &delayed_refs->href_root);
-			spin_unlock(&delayed_refs->lock);
-		} else {
-			actual_count++;
-			ref->in_tree = 0;
-			list_del(&ref->list);
-			if (!list_empty(&ref->add_list))
-				list_del(&ref->add_list);
+		actual_count++;
+		ref->in_tree = 0;
+		rb_erase(&ref->ref_node, &locked_ref->ref_tree);
+		RB_CLEAR_NODE(&ref->ref_node);
+		if (!list_empty(&ref->add_list))
+			list_del(&ref->add_list);
+		/*
+		 * When we play the delayed ref, also correct the ref_mod on
+		 * head
+		 */
+		switch (ref->action) {
+		case BTRFS_ADD_DELAYED_REF:
+		case BTRFS_ADD_DELAYED_EXTENT:
+			locked_ref->ref_mod -= ref->ref_mod;
+			break;
+		case BTRFS_DROP_DELAYED_REF:
+			locked_ref->ref_mod += ref->ref_mod;
+			break;
+		default:
+			WARN_ON(1);
 		}
 		atomic_dec(&delayed_refs->num_entries);
 
-		if (!btrfs_delayed_ref_is_head(ref)) {
-			/*
-			 * when we play the delayed ref, also correct the
-			 * ref_mod on head
-			 */
-			switch (ref->action) {
-			case BTRFS_ADD_DELAYED_REF:
-			case BTRFS_ADD_DELAYED_EXTENT:
-				locked_ref->node.ref_mod -= ref->ref_mod;
-				break;
-			case BTRFS_DROP_DELAYED_REF:
-				locked_ref->node.ref_mod += ref->ref_mod;
-				break;
-			default:
-				WARN_ON(1);
-			}
-		}
+		/*
+		 * Record the must-insert_reserved flag before we drop the spin
+		 * lock.
+		 */
+		must_insert_reserved = locked_ref->must_insert_reserved;
+		locked_ref->must_insert_reserved = 0;
+
+		extent_op = locked_ref->extent_op;
+		locked_ref->extent_op = NULL;
 		spin_unlock(&locked_ref->lock);
 
 		ret = run_one_delayed_ref(trans, fs_info, ref, extent_op,
@@ -2770,33 +2777,13 @@ static noinline int __btrfs_run_delayed_refs(struct btrfs_trans_handle *trans,
 
 		btrfs_free_delayed_extent_op(extent_op);
 		if (ret) {
-			spin_lock(&delayed_refs->lock);
-			locked_ref->processing = 0;
-			delayed_refs->num_heads_ready++;
-			spin_unlock(&delayed_refs->lock);
-			btrfs_delayed_ref_unlock(locked_ref);
+			unselect_delayed_ref_head(delayed_refs, locked_ref);
 			btrfs_put_delayed_ref(ref);
 			btrfs_debug(fs_info, "run_one_delayed_ref returned %d",
 				    ret);
 			return ret;
 		}
 
-		/*
-		 * If this node is a head, that means all the refs in this head
-		 * have been dealt with, and we will pick the next head to deal
-		 * with, so we must unlock the head and drop it from the cluster
-		 * list before we release it.
-		 */
-		if (btrfs_delayed_ref_is_head(ref)) {
-			if (locked_ref->is_data &&
-			    locked_ref->total_ref_mod < 0) {
-				spin_lock(&delayed_refs->lock);
-				delayed_refs->pending_csums -= ref->num_bytes;
-				spin_unlock(&delayed_refs->lock);
-			}
-			btrfs_delayed_ref_unlock(locked_ref);
-			locked_ref = NULL;
-		}
 		btrfs_put_delayed_ref(ref);
 		count++;
 		cond_resched();
@@ -3100,33 +3087,16 @@ again:
 			spin_unlock(&delayed_refs->lock);
 			goto out;
 		}
+		head = rb_entry(node, struct btrfs_delayed_ref_head,
+				href_node);
+		refcount_inc(&head->refs);
+		spin_unlock(&delayed_refs->lock);
 
-		while (node) {
-			head = rb_entry(node, struct btrfs_delayed_ref_head,
-					href_node);
-			if (btrfs_delayed_ref_is_head(&head->node)) {
-				struct btrfs_delayed_ref_node *ref;
-
-				ref = &head->node;
-				refcount_inc(&ref->refs);
-
-				spin_unlock(&delayed_refs->lock);
-				/*
-				 * Mutex was contended, block until it's
-				 * released and try again
-				 */
-				mutex_lock(&head->mutex);
-				mutex_unlock(&head->mutex);
+		/* Mutex was contended, block until it's released and retry. */
+		mutex_lock(&head->mutex);
+		mutex_unlock(&head->mutex);
 
-				btrfs_put_delayed_ref(ref);
-				cond_resched();
-				goto again;
-			} else {
-				WARN_ON(1);
-			}
-			node = rb_next(node);
-		}
-		spin_unlock(&delayed_refs->lock);
+		btrfs_put_delayed_ref_head(head);
 		cond_resched();
 		goto again;
 	}
@@ -3169,6 +3139,7 @@ static noinline int check_delayed_ref(struct btrfs_root *root,
 	struct btrfs_delayed_data_ref *data_ref;
 	struct btrfs_delayed_ref_root *delayed_refs;
 	struct btrfs_transaction *cur_trans;
+	struct rb_node *node;
 	int ret = 0;
 
 	cur_trans = root->fs_info->running_transaction;
@@ -3184,7 +3155,7 @@ static noinline int check_delayed_ref(struct btrfs_root *root,
 	}
 
 	if (!mutex_trylock(&head->mutex)) {
-		refcount_inc(&head->node.refs);
+		refcount_inc(&head->refs);
 		spin_unlock(&delayed_refs->lock);
 
 		btrfs_release_path(path);
@@ -3195,13 +3166,18 @@ static noinline int check_delayed_ref(struct btrfs_root *root,
 		 */
 		mutex_lock(&head->mutex);
 		mutex_unlock(&head->mutex);
-		btrfs_put_delayed_ref(&head->node);
+		btrfs_put_delayed_ref_head(head);
 		return -EAGAIN;
 	}
 	spin_unlock(&delayed_refs->lock);
 
 	spin_lock(&head->lock);
-	list_for_each_entry(ref, &head->ref_list, list) {
+	/*
+	 * XXX: We should replace this with a proper search function in the
+	 * future.
+	 */
+	for (node = rb_first(&head->ref_tree); node; node = rb_next(node)) {
+		ref = rb_entry(node, struct btrfs_delayed_ref_node, ref_node);
 		/* If it's a shared ref we know a cross reference exists */
 		if (ref->type != BTRFS_EXTENT_DATA_REF_KEY) {
 			ret = 1;
@@ -3351,7 +3327,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
 	int level;
 	int ret = 0;
 	int (*process_func)(struct btrfs_trans_handle *,
-			    struct btrfs_fs_info *,
+			    struct btrfs_root *,
 			    u64, u64, u64, u64, u64, u64);
 
 
@@ -3391,7 +3367,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
 
 			num_bytes = btrfs_file_extent_disk_num_bytes(buf, fi);
 			key.offset -= btrfs_file_extent_offset(buf, fi);
-			ret = process_func(trans, fs_info, bytenr, num_bytes,
+			ret = process_func(trans, root, bytenr, num_bytes,
 					   parent, ref_root, key.objectid,
 					   key.offset);
 			if (ret)
@@ -3399,7 +3375,7 @@ static int __btrfs_mod_ref(struct btrfs_trans_handle *trans,
 		} else {
 			bytenr = btrfs_node_blockptr(buf, i);
 			num_bytes = fs_info->nodesize;
-			ret = process_func(trans, fs_info, bytenr, num_bytes,
+			ret = process_func(trans, root, bytenr, num_bytes,
 					   parent, ref_root, level - 1, 0);
 			if (ret)
 				goto fail;
@@ -4843,7 +4819,6 @@ static inline u64 calc_reclaim_items_nr(struct btrfs_fs_info *fs_info,
 static void shrink_delalloc(struct btrfs_fs_info *fs_info, u64 to_reclaim,
 			    u64 orig, bool wait_ordered)
 {
-	struct btrfs_block_rsv *block_rsv;
 	struct btrfs_space_info *space_info;
 	struct btrfs_trans_handle *trans;
 	u64 delalloc_bytes;
@@ -4859,8 +4834,7 @@ static void shrink_delalloc(struct btrfs_fs_info *fs_info, u64 to_reclaim,
 	to_reclaim = items * EXTENT_SIZE_PER_ITEM;
 
 	trans = (struct btrfs_trans_handle *)current->journal_info;
-	block_rsv = &fs_info->delalloc_block_rsv;
-	space_info = block_rsv->space_info;
+	space_info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA);
 
 	delalloc_bytes = percpu_counter_sum_positive(
 						&fs_info->delalloc_bytes);
@@ -4919,6 +4893,13 @@ skip_async:
 	}
 }
 
+struct reserve_ticket {
+	u64 bytes;
+	int error;
+	struct list_head list;
+	wait_queue_head_t wait;
+};
+
 /**
  * maybe_commit_transaction - possibly commit the transaction if its ok to
  * @root - the root we're allocating for
@@ -4930,18 +4911,29 @@ skip_async:
  * will return -ENOSPC.
  */
 static int may_commit_transaction(struct btrfs_fs_info *fs_info,
-				  struct btrfs_space_info *space_info,
-				  u64 bytes, int force)
+				  struct btrfs_space_info *space_info)
 {
+	struct reserve_ticket *ticket = NULL;
 	struct btrfs_block_rsv *delayed_rsv = &fs_info->delayed_block_rsv;
 	struct btrfs_trans_handle *trans;
+	u64 bytes;
 
 	trans = (struct btrfs_trans_handle *)current->journal_info;
 	if (trans)
 		return -EAGAIN;
 
-	if (force)
-		goto commit;
+	spin_lock(&space_info->lock);
+	if (!list_empty(&space_info->priority_tickets))
+		ticket = list_first_entry(&space_info->priority_tickets,
+					  struct reserve_ticket, list);
+	else if (!list_empty(&space_info->tickets))
+		ticket = list_first_entry(&space_info->tickets,
+					  struct reserve_ticket, list);
+	bytes = (ticket) ? ticket->bytes : 0;
+	spin_unlock(&space_info->lock);
+
+	if (!bytes)
+		return 0;
 
 	/* See if there is enough pinned space to make this reservation */
 	if (percpu_counter_compare(&space_info->total_bytes_pinned,
@@ -4956,8 +4948,12 @@ static int may_commit_transaction(struct btrfs_fs_info *fs_info,
 		return -ENOSPC;
 
 	spin_lock(&delayed_rsv->lock);
+	if (delayed_rsv->size > bytes)
+		bytes = 0;
+	else
+		bytes -= delayed_rsv->size;
 	if (percpu_counter_compare(&space_info->total_bytes_pinned,
-				   bytes - delayed_rsv->size) < 0) {
+				   bytes) < 0) {
 		spin_unlock(&delayed_rsv->lock);
 		return -ENOSPC;
 	}
@@ -4971,13 +4967,6 @@ commit:
 	return btrfs_commit_transaction(trans);
 }
 
-struct reserve_ticket {
-	u64 bytes;
-	int error;
-	struct list_head list;
-	wait_queue_head_t wait;
-};
-
 /*
  * Try to flush some data based on policy set by @state. This is only advisory
  * and may fail for various reasons. The caller is supposed to examine the
@@ -5027,8 +5016,7 @@ static void flush_space(struct btrfs_fs_info *fs_info,
 			ret = 0;
 		break;
 	case COMMIT_TRANS:
-		ret = may_commit_transaction(fs_info, space_info,
-					     num_bytes, 0);
+		ret = may_commit_transaction(fs_info, space_info);
 		break;
 	default:
 		ret = -ENOSPC;
@@ -5582,11 +5570,12 @@ again:
 	}
 }
 
-static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
+static u64 block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
 				    struct btrfs_block_rsv *block_rsv,
 				    struct btrfs_block_rsv *dest, u64 num_bytes)
 {
 	struct btrfs_space_info *space_info = block_rsv->space_info;
+	u64 ret;
 
 	spin_lock(&block_rsv->lock);
 	if (num_bytes == (u64)-1)
@@ -5601,6 +5590,7 @@ static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
 	}
 	spin_unlock(&block_rsv->lock);
 
+	ret = num_bytes;
 	if (num_bytes > 0) {
 		if (dest) {
 			spin_lock(&dest->lock);
@@ -5620,6 +5610,7 @@ static void block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
 			space_info_add_old_bytes(fs_info, space_info,
 						 num_bytes);
 	}
+	return ret;
 }
 
 int btrfs_block_rsv_migrate(struct btrfs_block_rsv *src,
@@ -5643,6 +5634,15 @@ void btrfs_init_block_rsv(struct btrfs_block_rsv *rsv, unsigned short type)
 	rsv->type = type;
 }
 
+void btrfs_init_metadata_block_rsv(struct btrfs_fs_info *fs_info,
+				   struct btrfs_block_rsv *rsv,
+				   unsigned short type)
+{
+	btrfs_init_block_rsv(rsv, type);
+	rsv->space_info = __find_space_info(fs_info,
+					    BTRFS_BLOCK_GROUP_METADATA);
+}
+
 struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info,
 					      unsigned short type)
 {
@@ -5652,9 +5652,7 @@ struct btrfs_block_rsv *btrfs_alloc_block_rsv(struct btrfs_fs_info *fs_info,
 	if (!block_rsv)
 		return NULL;
 
-	btrfs_init_block_rsv(block_rsv, type);
-	block_rsv->space_info = __find_space_info(fs_info,
-						  BTRFS_BLOCK_GROUP_METADATA);
+	btrfs_init_metadata_block_rsv(fs_info, block_rsv, type);
 	return block_rsv;
 }
 
@@ -5737,6 +5735,66 @@ int btrfs_block_rsv_refill(struct btrfs_root *root,
 	return ret;
 }
 
+/**
+ * btrfs_inode_rsv_refill - refill the inode block rsv.
+ * @inode - the inode we are refilling.
+ * @flush - the flusing restriction.
+ *
+ * Essentially the same as btrfs_block_rsv_refill, except it uses the
+ * block_rsv->size as the minimum size.  We'll either refill the missing amount
+ * or return if we already have enough space.  This will also handle the resreve
+ * tracepoint for the reserved amount.
+ */
+int btrfs_inode_rsv_refill(struct btrfs_inode *inode,
+			   enum btrfs_reserve_flush_enum flush)
+{
+	struct btrfs_root *root = inode->root;
+	struct btrfs_block_rsv *block_rsv = &inode->block_rsv;
+	u64 num_bytes = 0;
+	int ret = -ENOSPC;
+
+	spin_lock(&block_rsv->lock);
+	if (block_rsv->reserved < block_rsv->size)
+		num_bytes = block_rsv->size - block_rsv->reserved;
+	spin_unlock(&block_rsv->lock);
+
+	if (num_bytes == 0)
+		return 0;
+
+	ret = reserve_metadata_bytes(root, block_rsv, num_bytes, flush);
+	if (!ret) {
+		block_rsv_add_bytes(block_rsv, num_bytes, 0);
+		trace_btrfs_space_reservation(root->fs_info, "delalloc",
+					      btrfs_ino(inode), num_bytes, 1);
+	}
+	return ret;
+}
+
+/**
+ * btrfs_inode_rsv_release - release any excessive reservation.
+ * @inode - the inode we need to release from.
+ *
+ * This is the same as btrfs_block_rsv_release, except that it handles the
+ * tracepoint for the reservation.
+ */
+void btrfs_inode_rsv_release(struct btrfs_inode *inode)
+{
+	struct btrfs_fs_info *fs_info = inode->root->fs_info;
+	struct btrfs_block_rsv *global_rsv = &fs_info->global_block_rsv;
+	struct btrfs_block_rsv *block_rsv = &inode->block_rsv;
+	u64 released = 0;
+
+	/*
+	 * Since we statically set the block_rsv->size we just want to say we
+	 * are releasing 0 bytes, and then we'll just get the reservation over
+	 * the size free'd.
+	 */
+	released = block_rsv_release_bytes(fs_info, block_rsv, global_rsv, 0);
+	if (released > 0)
+		trace_btrfs_space_reservation(fs_info, "delalloc",
+					      btrfs_ino(inode), released, 0);
+}
+
 void btrfs_block_rsv_release(struct btrfs_fs_info *fs_info,
 			     struct btrfs_block_rsv *block_rsv,
 			     u64 num_bytes)
@@ -5808,7 +5866,6 @@ static void init_global_block_rsv(struct btrfs_fs_info *fs_info)
 
 	space_info = __find_space_info(fs_info, BTRFS_BLOCK_GROUP_METADATA);
 	fs_info->global_block_rsv.space_info = space_info;
-	fs_info->delalloc_block_rsv.space_info = space_info;
 	fs_info->trans_block_rsv.space_info = space_info;
 	fs_info->empty_block_rsv.space_info = space_info;
 	fs_info->delayed_block_rsv.space_info = space_info;
@@ -5828,8 +5885,6 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info)
 {
 	block_rsv_release_bytes(fs_info, &fs_info->global_block_rsv, NULL,
 				(u64)-1);
-	WARN_ON(fs_info->delalloc_block_rsv.size > 0);
-	WARN_ON(fs_info->delalloc_block_rsv.reserved > 0);
 	WARN_ON(fs_info->trans_block_rsv.size > 0);
 	WARN_ON(fs_info->trans_block_rsv.reserved > 0);
 	WARN_ON(fs_info->chunk_block_rsv.size > 0);
@@ -5841,12 +5896,15 @@ static void release_global_block_rsv(struct btrfs_fs_info *fs_info)
 void btrfs_trans_release_metadata(struct btrfs_trans_handle *trans,
 				  struct btrfs_fs_info *fs_info)
 {
-	if (!trans->block_rsv)
+	if (!trans->block_rsv) {
+		ASSERT(!trans->bytes_reserved);
 		return;
+	}
 
 	if (!trans->bytes_reserved)
 		return;
 
+	ASSERT(trans->block_rsv == &fs_info->trans_block_rsv);
 	trace_btrfs_space_reservation(fs_info, "transaction",
 				      trans->transid, trans->bytes_reserved, 0);
 	btrfs_block_rsv_release(fs_info, trans->block_rsv,
@@ -5968,104 +6026,37 @@ void btrfs_subvolume_release_metadata(struct btrfs_fs_info *fs_info,
 	btrfs_block_rsv_release(fs_info, rsv, (u64)-1);
 }
 
-/**
- * drop_outstanding_extent - drop an outstanding extent
- * @inode: the inode we're dropping the extent for
- * @num_bytes: the number of bytes we're releasing.
- *
- * This is called when we are freeing up an outstanding extent, either called
- * after an error or after an extent is written.  This will return the number of
- * reserved extents that need to be freed.  This must be called with
- * BTRFS_I(inode)->lock held.
- */
-static unsigned drop_outstanding_extent(struct btrfs_inode *inode,
-		u64 num_bytes)
-{
-	unsigned drop_inode_space = 0;
-	unsigned dropped_extents = 0;
-	unsigned num_extents;
-
-	num_extents = count_max_extents(num_bytes);
-	ASSERT(num_extents);
-	ASSERT(inode->outstanding_extents >= num_extents);
-	inode->outstanding_extents -= num_extents;
-
-	if (inode->outstanding_extents == 0 &&
-	    test_and_clear_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
-			       &inode->runtime_flags))
-		drop_inode_space = 1;
-
-	/*
-	 * If we have more or the same amount of outstanding extents than we have
-	 * reserved then we need to leave the reserved extents count alone.
-	 */
-	if (inode->outstanding_extents >= inode->reserved_extents)
-		return drop_inode_space;
-
-	dropped_extents = inode->reserved_extents - inode->outstanding_extents;
-	inode->reserved_extents -= dropped_extents;
-	return dropped_extents + drop_inode_space;
-}
-
-/**
- * calc_csum_metadata_size - return the amount of metadata space that must be
- *	reserved/freed for the given bytes.
- * @inode: the inode we're manipulating
- * @num_bytes: the number of bytes in question
- * @reserve: 1 if we are reserving space, 0 if we are freeing space
- *
- * This adjusts the number of csum_bytes in the inode and then returns the
- * correct amount of metadata that must either be reserved or freed.  We
- * calculate how many checksums we can fit into one leaf and then divide the
- * number of bytes that will need to be checksumed by this value to figure out
- * how many checksums will be required.  If we are adding bytes then the number
- * may go up and we will return the number of additional bytes that must be
- * reserved.  If it is going down we will return the number of bytes that must
- * be freed.
- *
- * This must be called with BTRFS_I(inode)->lock held.
- */
-static u64 calc_csum_metadata_size(struct btrfs_inode *inode, u64 num_bytes,
-				   int reserve)
+static void btrfs_calculate_inode_block_rsv_size(struct btrfs_fs_info *fs_info,
+						 struct btrfs_inode *inode)
 {
-	struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);
-	u64 old_csums, num_csums;
-
-	if (inode->flags & BTRFS_INODE_NODATASUM && inode->csum_bytes == 0)
-		return 0;
-
-	old_csums = btrfs_csum_bytes_to_leaves(fs_info, inode->csum_bytes);
-	if (reserve)
-		inode->csum_bytes += num_bytes;
-	else
-		inode->csum_bytes -= num_bytes;
-	num_csums = btrfs_csum_bytes_to_leaves(fs_info, inode->csum_bytes);
-
-	/* No change, no need to reserve more */
-	if (old_csums == num_csums)
-		return 0;
+	struct btrfs_block_rsv *block_rsv = &inode->block_rsv;
+	u64 reserve_size = 0;
+	u64 csum_leaves;
+	unsigned outstanding_extents;
 
-	if (reserve)
-		return btrfs_calc_trans_metadata_size(fs_info,
-						      num_csums - old_csums);
+	lockdep_assert_held(&inode->lock);
+	outstanding_extents = inode->outstanding_extents;
+	if (outstanding_extents)
+		reserve_size = btrfs_calc_trans_metadata_size(fs_info,
+						outstanding_extents + 1);
+	csum_leaves = btrfs_csum_bytes_to_leaves(fs_info,
+						 inode->csum_bytes);
+	reserve_size += btrfs_calc_trans_metadata_size(fs_info,
+						       csum_leaves);
 
-	return btrfs_calc_trans_metadata_size(fs_info, old_csums - num_csums);
+	spin_lock(&block_rsv->lock);
+	block_rsv->size = reserve_size;
+	spin_unlock(&block_rsv->lock);
 }
 
 int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes)
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);
 	struct btrfs_root *root = inode->root;
-	struct btrfs_block_rsv *block_rsv = &fs_info->delalloc_block_rsv;
-	u64 to_reserve = 0;
-	u64 csum_bytes;
 	unsigned nr_extents;
 	enum btrfs_reserve_flush_enum flush = BTRFS_RESERVE_FLUSH_ALL;
 	int ret = 0;
 	bool delalloc_lock = true;
-	u64 to_free = 0;
-	unsigned dropped;
-	bool release_extra = false;
 
 	/* If we are a free space inode we need to not flush since we will be in
 	 * the middle of a transaction commit.  We also don't need the delalloc
@@ -6091,19 +6082,12 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes)
 
 	num_bytes = ALIGN(num_bytes, fs_info->sectorsize);
 
+	/* Add our new extents and calculate the new rsv size. */
 	spin_lock(&inode->lock);
 	nr_extents = count_max_extents(num_bytes);
-	inode->outstanding_extents += nr_extents;
-
-	nr_extents = 0;
-	if (inode->outstanding_extents > inode->reserved_extents)
-		nr_extents += inode->outstanding_extents -
-			inode->reserved_extents;
-
-	/* We always want to reserve a slot for updating the inode. */
-	to_reserve = btrfs_calc_trans_metadata_size(fs_info, nr_extents + 1);
-	to_reserve += calc_csum_metadata_size(inode, num_bytes, 1);
-	csum_bytes = inode->csum_bytes;
+	btrfs_mod_outstanding_extents(inode, nr_extents);
+	inode->csum_bytes += num_bytes;
+	btrfs_calculate_inode_block_rsv_size(fs_info, inode);
 	spin_unlock(&inode->lock);
 
 	if (test_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags)) {
@@ -6113,92 +6097,26 @@ int btrfs_delalloc_reserve_metadata(struct btrfs_inode *inode, u64 num_bytes)
 			goto out_fail;
 	}
 
-	ret = btrfs_block_rsv_add(root, block_rsv, to_reserve, flush);
+	ret = btrfs_inode_rsv_refill(inode, flush);
 	if (unlikely(ret)) {
 		btrfs_qgroup_free_meta(root,
 				       nr_extents * fs_info->nodesize);
 		goto out_fail;
 	}
 
-	spin_lock(&inode->lock);
-	if (test_and_set_bit(BTRFS_INODE_DELALLOC_META_RESERVED,
-			     &inode->runtime_flags)) {
-		to_reserve -= btrfs_calc_trans_metadata_size(fs_info, 1);
-		release_extra = true;
-	}
-	inode->reserved_extents += nr_extents;
-	spin_unlock(&inode->lock);
-
 	if (delalloc_lock)
 		mutex_unlock(&inode->delalloc_mutex);
-
-	if (to_reserve)
-		trace_btrfs_space_reservation(fs_info, "delalloc",
-					      btrfs_ino(inode), to_reserve, 1);
-	if (release_extra)
-		btrfs_block_rsv_release(fs_info, block_rsv,
-				btrfs_calc_trans_metadata_size(fs_info, 1));
 	return 0;
 
 out_fail:
 	spin_lock(&inode->lock);
-	dropped = drop_outstanding_extent(inode, num_bytes);
-	/*
-	 * If the inodes csum_bytes is the same as the original
-	 * csum_bytes then we know we haven't raced with any free()ers
-	 * so we can just reduce our inodes csum bytes and carry on.
-	 */
-	if (inode->csum_bytes == csum_bytes) {
-		calc_csum_metadata_size(inode, num_bytes, 0);
-	} else {
-		u64 orig_csum_bytes = inode->csum_bytes;
-		u64 bytes;
-
-		/*
-		 * This is tricky, but first we need to figure out how much we
-		 * freed from any free-ers that occurred during this
-		 * reservation, so we reset ->csum_bytes to the csum_bytes
-		 * before we dropped our lock, and then call the free for the
-		 * number of bytes that were freed while we were trying our
-		 * reservation.
-		 */
-		bytes = csum_bytes - inode->csum_bytes;
-		inode->csum_bytes = csum_bytes;
-		to_free = calc_csum_metadata_size(inode, bytes, 0);
-
-
-		/*
-		 * Now we need to see how much we would have freed had we not
-		 * been making this reservation and our ->csum_bytes were not
-		 * artificially inflated.
-		 */
-		inode->csum_bytes = csum_bytes - num_bytes;
-		bytes = csum_bytes - orig_csum_bytes;
-		bytes = calc_csum_metadata_size(inode, bytes, 0);
-
-		/*
-		 * Now reset ->csum_bytes to what it should be.  If bytes is
-		 * more than to_free then we would have freed more space had we
-		 * not had an artificially high ->csum_bytes, so we need to free
-		 * the remainder.  If bytes is the same or less then we don't
-		 * need to do anything, the other free-ers did the correct
-		 * thing.
-		 */
-		inode->csum_bytes = orig_csum_bytes - num_bytes;
-		if (bytes > to_free)
-			to_free = bytes - to_free;
-		else
-			to_free = 0;
-	}
+	nr_extents = count_max_extents(num_bytes);
+	btrfs_mod_outstanding_extents(inode, -nr_extents);
+	inode->csum_bytes -= num_bytes;
+	btrfs_calculate_inode_block_rsv_size(fs_info, inode);
 	spin_unlock(&inode->lock);
-	if (dropped)
-		to_free += btrfs_calc_trans_metadata_size(fs_info, dropped);
 
-	if (to_free) {
-		btrfs_block_rsv_release(fs_info, block_rsv, to_free);
-		trace_btrfs_space_reservation(fs_info, "delalloc",
-					      btrfs_ino(inode), to_free, 0);
-	}
+	btrfs_inode_rsv_release(inode);
 	if (delalloc_lock)
 		mutex_unlock(&inode->delalloc_mutex);
 	return ret;
@@ -6206,36 +6124,55 @@ out_fail:
 
 /**
  * btrfs_delalloc_release_metadata - release a metadata reservation for an inode
- * @inode: the inode to release the reservation for
- * @num_bytes: the number of bytes we're releasing
+ * @inode: the inode to release the reservation for.
+ * @num_bytes: the number of bytes we are releasing.
  *
  * This will release the metadata reservation for an inode.  This can be called
  * once we complete IO for a given set of bytes to release their metadata
- * reservations.
+ * reservations, or on error for the same reason.
  */
 void btrfs_delalloc_release_metadata(struct btrfs_inode *inode, u64 num_bytes)
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);
-	u64 to_free = 0;
-	unsigned dropped;
 
 	num_bytes = ALIGN(num_bytes, fs_info->sectorsize);
 	spin_lock(&inode->lock);
-	dropped = drop_outstanding_extent(inode, num_bytes);
-
-	if (num_bytes)
-		to_free = calc_csum_metadata_size(inode, num_bytes, 0);
+	inode->csum_bytes -= num_bytes;
+	btrfs_calculate_inode_block_rsv_size(fs_info, inode);
 	spin_unlock(&inode->lock);
-	if (dropped > 0)
-		to_free += btrfs_calc_trans_metadata_size(fs_info, dropped);
 
 	if (btrfs_is_testing(fs_info))
 		return;
 
-	trace_btrfs_space_reservation(fs_info, "delalloc", btrfs_ino(inode),
-				      to_free, 0);
+	btrfs_inode_rsv_release(inode);
+}
+
+/**
+ * btrfs_delalloc_release_extents - release our outstanding_extents
+ * @inode: the inode to balance the reservation for.
+ * @num_bytes: the number of bytes we originally reserved with
+ *
+ * When we reserve space we increase outstanding_extents for the extents we may
+ * add.  Once we've set the range as delalloc or created our ordered extents we
+ * have outstanding_extents to track the real usage, so we use this to free our
+ * temporarily tracked outstanding_extents.  This _must_ be used in conjunction
+ * with btrfs_delalloc_reserve_metadata.
+ */
+void btrfs_delalloc_release_extents(struct btrfs_inode *inode, u64 num_bytes)
+{
+	struct btrfs_fs_info *fs_info = btrfs_sb(inode->vfs_inode.i_sb);
+	unsigned num_extents;
+
+	spin_lock(&inode->lock);
+	num_extents = count_max_extents(num_bytes);
+	btrfs_mod_outstanding_extents(inode, -num_extents);
+	btrfs_calculate_inode_block_rsv_size(fs_info, inode);
+	spin_unlock(&inode->lock);
+
+	if (btrfs_is_testing(fs_info))
+		return;
 
-	btrfs_block_rsv_release(fs_info, &fs_info->delalloc_block_rsv, to_free);
+	btrfs_inode_rsv_release(inode);
 }
 
 /**
@@ -6282,10 +6219,7 @@ int btrfs_delalloc_reserve_space(struct inode *inode,
  * @inode: inode we're releasing space for
  * @start: start position of the space already reserved
  * @len: the len of the space already reserved
- *
- * This must be matched with a call to btrfs_delalloc_reserve_space.  This is
- * called in the case that we don't need the metadata AND data reservations
- * anymore.  So if there is an error or we insert an inline extent.
+ * @release_bytes: the len of the space we consumed or didn't use
  *
  * This function will release the metadata space that was not used and will
  * decrement ->delalloc_bytes and remove it from the fs_info delalloc_inodes
@@ -6293,7 +6227,8 @@ int btrfs_delalloc_reserve_space(struct inode *inode,
  * Also it will handle the qgroup reserved space.
  */
 void btrfs_delalloc_release_space(struct inode *inode,
-			struct extent_changeset *reserved, u64 start, u64 len)
+				  struct extent_changeset *reserved,
+				  u64 start, u64 len)
 {
 	btrfs_delalloc_release_metadata(BTRFS_I(inode), len);
 	btrfs_free_reserved_data_space(inode, reserved, start, len);
@@ -6958,7 +6893,7 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 	BUG_ON(!is_data && refs_to_drop != 1);
 
 	if (is_data)
-		skinny_metadata = 0;
+		skinny_metadata = false;
 
 	ret = lookup_extent_backref(trans, info, path, &iref,
 				    bytenr, num_bytes, parent,
@@ -7213,7 +7148,7 @@ static noinline int check_ref_cleanup(struct btrfs_trans_handle *trans,
 		goto out_delayed_unlock;
 
 	spin_lock(&head->lock);
-	if (!list_empty(&head->ref_list))
+	if (!RB_EMPTY_ROOT(&head->ref_tree))
 		goto out;
 
 	if (head->extent_op) {
@@ -7234,9 +7169,8 @@ static noinline int check_ref_cleanup(struct btrfs_trans_handle *trans,
 	 * at this point we have a head with no other entries.  Go
 	 * ahead and process it.
 	 */
-	head->node.in_tree = 0;
 	rb_erase(&head->href_node, &delayed_refs->href_root);
-
+	RB_CLEAR_NODE(&head->href_node);
 	atomic_dec(&delayed_refs->num_entries);
 
 	/*
@@ -7255,7 +7189,7 @@ static noinline int check_ref_cleanup(struct btrfs_trans_handle *trans,
 		ret = 1;
 
 	mutex_unlock(&head->mutex);
-	btrfs_put_delayed_ref(&head->node);
+	btrfs_put_delayed_ref_head(head);
 	return ret;
 out:
 	spin_unlock(&head->lock);
@@ -7277,6 +7211,10 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
 	if (root->root_key.objectid != BTRFS_TREE_LOG_OBJECTID) {
 		int old_ref_mod, new_ref_mod;
 
+		btrfs_ref_tree_mod(root, buf->start, buf->len, parent,
+				   root->root_key.objectid,
+				   btrfs_header_level(buf), 0,
+				   BTRFS_DROP_DELAYED_REF);
 		ret = btrfs_add_delayed_tree_ref(fs_info, trans, buf->start,
 						 buf->len, parent,
 						 root->root_key.objectid,
@@ -7329,16 +7267,21 @@ out:
 
 /* Can return -ENOMEM */
 int btrfs_free_extent(struct btrfs_trans_handle *trans,
-		      struct btrfs_fs_info *fs_info,
+		      struct btrfs_root *root,
 		      u64 bytenr, u64 num_bytes, u64 parent, u64 root_objectid,
 		      u64 owner, u64 offset)
 {
+	struct btrfs_fs_info *fs_info = root->fs_info;
 	int old_ref_mod, new_ref_mod;
 	int ret;
 
 	if (btrfs_is_testing(fs_info))
 		return 0;
 
+	if (root_objectid != BTRFS_TREE_LOG_OBJECTID)
+		btrfs_ref_tree_mod(root, bytenr, num_bytes, parent,
+				   root_objectid, owner, offset,
+				   BTRFS_DROP_DELAYED_REF);
 
 	/*
 	 * tree log blocks never actually go into the extent allocation
@@ -8306,17 +8249,22 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
 }
 
 int btrfs_alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
-				     u64 root_objectid, u64 owner,
+				     struct btrfs_root *root, u64 owner,
 				     u64 offset, u64 ram_bytes,
 				     struct btrfs_key *ins)
 {
-	struct btrfs_fs_info *fs_info = trans->fs_info;
+	struct btrfs_fs_info *fs_info = root->fs_info;
 	int ret;
 
-	BUG_ON(root_objectid == BTRFS_TREE_LOG_OBJECTID);
+	BUG_ON(root->root_key.objectid == BTRFS_TREE_LOG_OBJECTID);
+
+	btrfs_ref_tree_mod(root, ins->objectid, ins->offset, 0,
+			   root->root_key.objectid, owner, offset,
+			   BTRFS_ADD_DELAYED_EXTENT);
 
 	ret = btrfs_add_delayed_data_ref(fs_info, trans, ins->objectid,
-					 ins->offset, 0, root_objectid, owner,
+					 ins->offset, 0,
+					 root->root_key.objectid, owner,
 					 offset, ram_bytes,
 					 BTRFS_ADD_DELAYED_EXTENT, NULL, NULL);
 	return ret;
@@ -8538,6 +8486,9 @@ struct extent_buffer *btrfs_alloc_tree_block(struct btrfs_trans_handle *trans,
 		extent_op->is_data = false;
 		extent_op->level = level;
 
+		btrfs_ref_tree_mod(root, ins.objectid, ins.offset, parent,
+				   root_objectid, level, 0,
+				   BTRFS_ADD_DELAYED_EXTENT);
 		ret = btrfs_add_delayed_tree_ref(fs_info, trans, ins.objectid,
 						 ins.offset, parent,
 						 root_objectid, level,
@@ -8894,7 +8845,7 @@ skip:
 					     ret);
 			}
 		}
-		ret = btrfs_free_extent(trans, fs_info, bytenr, blocksize,
+		ret = btrfs_free_extent(trans, root, bytenr, blocksize,
 					parent, root->root_key.objectid,
 					level - 1, 0);
 		if (ret)
@@ -9311,7 +9262,7 @@ out:
 	 * don't have it in the radix (like when we recover after a power fail
 	 * or unmount) so we don't leak memory.
 	 */
-	if (!for_reloc && root_dropped == false)
+	if (!for_reloc && !root_dropped)
 		btrfs_add_dead_root(root);
 	if (err && err != -EAGAIN)
 		btrfs_handle_fs_error(fs_info, err, NULL);
@@ -9968,9 +9919,9 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
 	return 0;
 }
 
-static void __link_block_group(struct btrfs_space_info *space_info,
-			       struct btrfs_block_group_cache *cache)
+static void link_block_group(struct btrfs_block_group_cache *cache)
 {
+	struct btrfs_space_info *space_info = cache->space_info;
 	int index = get_block_group_index(cache);
 	bool first = false;
 
@@ -10178,7 +10129,7 @@ int btrfs_read_block_groups(struct btrfs_fs_info *info)
 
 		cache->space_info = space_info;
 
-		__link_block_group(space_info, cache);
+		link_block_group(cache);
 
 		set_avail_alloc_bits(info, cache->flags);
 		if (btrfs_chunk_readonly(info, cache->key.objectid)) {
@@ -10337,7 +10288,7 @@ int btrfs_make_block_group(struct btrfs_trans_handle *trans,
 				cache->bytes_super, &cache->space_info);
 	update_global_block_rsv(fs_info);
 
-	__link_block_group(cache->space_info, cache);
+	link_block_group(cache);
 
 	list_add_tail(&cache->bg_list, &trans->new_bgs);
 
@@ -10387,6 +10338,8 @@ int btrfs_remove_block_group(struct btrfs_trans_handle *trans,
 	 * remove it.
 	 */
 	free_excluded_extents(fs_info, block_group);
+	btrfs_free_ref_tree_range(fs_info, block_group->key.objectid,
+				  block_group->key.offset);
 
 	memcpy(&key, &block_group->key, sizeof(key));
 	index = get_block_group_index(block_group);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 0f077c5db58e..adbbc017191c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <linux/slab.h>
 #include <linux/bio.h>
@@ -109,7 +110,6 @@ struct extent_page_data {
 	struct bio *bio;
 	struct extent_io_tree *tree;
 	get_extent_t *get_extent;
-	unsigned long bio_flags;
 
 	/* tells writepage not to lock the state bits for this range
 	 * it still does the unlocking
@@ -2060,7 +2060,7 @@ int repair_eb_io_failure(struct btrfs_fs_info *fs_info,
 	unsigned long i, num_pages = num_extent_pages(eb->start, eb->len);
 	int ret = 0;
 
-	if (fs_info->sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(fs_info->sb))
 		return -EROFS;
 
 	for (i = 0; i < num_pages; i++) {
@@ -2110,7 +2110,7 @@ int clean_io_failure(struct btrfs_fs_info *fs_info,
 			failrec->start);
 		goto out;
 	}
-	if (fs_info->sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(fs_info->sb))
 		goto out;
 
 	spin_lock(&io_tree->lock);
@@ -2761,8 +2761,8 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page,
  */
 static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
 			      struct writeback_control *wbc,
-			      struct page *page, sector_t sector,
-			      size_t size, unsigned long offset,
+			      struct page *page, u64 offset,
+			      size_t size, unsigned long pg_offset,
 			      struct block_device *bdev,
 			      struct bio **bio_ret,
 			      bio_end_io_t end_io_func,
@@ -2776,6 +2776,7 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
 	int contig = 0;
 	int old_compressed = prev_bio_flags & EXTENT_BIO_COMPRESSED;
 	size_t page_size = min_t(size_t, size, PAGE_SIZE);
+	sector_t sector = offset >> 9;
 
 	if (bio_ret && *bio_ret) {
 		bio = *bio_ret;
@@ -2786,8 +2787,8 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
 
 		if (prev_bio_flags != bio_flags || !contig ||
 		    force_bio_submit ||
-		    merge_bio(tree, page, offset, page_size, bio, bio_flags) ||
-		    bio_add_page(bio, page, page_size, offset) < page_size) {
+		    merge_bio(tree, page, pg_offset, page_size, bio, bio_flags) ||
+		    bio_add_page(bio, page, page_size, pg_offset) < page_size) {
 			ret = submit_one_bio(bio, mirror_num, prev_bio_flags);
 			if (ret < 0) {
 				*bio_ret = NULL;
@@ -2801,8 +2802,8 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
 		}
 	}
 
-	bio = btrfs_bio_alloc(bdev, sector << 9);
-	bio_add_page(bio, page, page_size, offset);
+	bio = btrfs_bio_alloc(bdev, offset);
+	bio_add_page(bio, page, page_size, pg_offset);
 	bio->bi_end_io = end_io_func;
 	bio->bi_private = tree;
 	bio->bi_write_hint = page->mapping->host->i_write_hint;
@@ -2892,7 +2893,6 @@ static int __do_readpage(struct extent_io_tree *tree,
 	u64 last_byte = i_size_read(inode);
 	u64 block_start;
 	u64 cur_end;
-	sector_t sector;
 	struct extent_map *em;
 	struct block_device *bdev;
 	int ret = 0;
@@ -2928,6 +2928,7 @@ static int __do_readpage(struct extent_io_tree *tree,
 	}
 	while (cur <= end) {
 		bool force_bio_submit = false;
+		u64 offset;
 
 		if (cur >= last_byte) {
 			char *userpage;
@@ -2967,9 +2968,9 @@ static int __do_readpage(struct extent_io_tree *tree,
 		iosize = ALIGN(iosize, blocksize);
 		if (this_bio_flag & EXTENT_BIO_COMPRESSED) {
 			disk_io_size = em->block_len;
-			sector = em->block_start >> 9;
+			offset = em->block_start;
 		} else {
-			sector = (em->block_start + extent_offset) >> 9;
+			offset = em->block_start + extent_offset;
 			disk_io_size = iosize;
 		}
 		bdev = em->bdev;
@@ -3062,8 +3063,8 @@ static int __do_readpage(struct extent_io_tree *tree,
 		}
 
 		ret = submit_extent_page(REQ_OP_READ | read_flags, tree, NULL,
-					 page, sector, disk_io_size, pg_offset,
-					 bdev, bio,
+					 page, offset, disk_io_size,
+					 pg_offset, bdev, bio,
 					 end_bio_extent_readpage, mirror_num,
 					 *bio_flags,
 					 this_bio_flag,
@@ -3324,7 +3325,6 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
 	u64 extent_offset;
 	u64 block_start;
 	u64 iosize;
-	sector_t sector;
 	struct extent_map *em;
 	struct block_device *bdev;
 	size_t pg_offset = 0;
@@ -3367,6 +3367,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
 
 	while (cur <= end) {
 		u64 em_end;
+		u64 offset;
 
 		if (cur >= i_size) {
 			if (tree->ops && tree->ops->writepage_end_io_hook)
@@ -3388,7 +3389,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
 		BUG_ON(end < cur);
 		iosize = min(em_end - cur, end - cur + 1);
 		iosize = ALIGN(iosize, blocksize);
-		sector = (em->block_start + extent_offset) >> 9;
+		offset = em->block_start + extent_offset;
 		bdev = em->bdev;
 		block_start = em->block_start;
 		compressed = test_bit(EXTENT_FLAG_COMPRESSED, &em->flags);
@@ -3431,7 +3432,7 @@ static noinline_for_stack int __extent_writepage_io(struct inode *inode,
 		}
 
 		ret = submit_extent_page(REQ_OP_WRITE | write_flags, tree, wbc,
-					 page, sector, iosize, pg_offset,
+					 page, offset, iosize, pg_offset,
 					 bdev, &epd->bio,
 					 end_bio_extent_writepage,
 					 0, 0, 0, false);
@@ -3471,8 +3472,7 @@ static int __extent_writepage(struct page *page, struct writeback_control *wbc,
 	unsigned int write_flags = 0;
 	unsigned long nr_written = 0;
 
-	if (wbc->sync_mode == WB_SYNC_ALL)
-		write_flags = REQ_SYNC;
+	write_flags = wbc_to_write_flags(wbc);
 
 	trace___extent_writepage(page, inode, wbc);
 
@@ -3716,16 +3716,13 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
 	u64 offset = eb->start;
 	u32 nritems;
 	unsigned long i, num_pages;
-	unsigned long bio_flags = 0;
 	unsigned long start, end;
-	unsigned int write_flags = (epd->sync_io ? REQ_SYNC : 0) | REQ_META;
+	unsigned int write_flags = wbc_to_write_flags(wbc) | REQ_META;
 	int ret = 0;
 
 	clear_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags);
 	num_pages = num_extent_pages(eb->start, eb->len);
 	atomic_set(&eb->io_pages, num_pages);
-	if (btrfs_header_owner(eb) == BTRFS_TREE_LOG_OBJECTID)
-		bio_flags = EXTENT_BIO_TREE_LOG;
 
 	/* set btree blocks beyond nritems with 0 to avoid stale content. */
 	nritems = btrfs_header_nritems(eb);
@@ -3749,11 +3746,10 @@ static noinline_for_stack int write_one_eb(struct extent_buffer *eb,
 		clear_page_dirty_for_io(p);
 		set_page_writeback(p);
 		ret = submit_extent_page(REQ_OP_WRITE | write_flags, tree, wbc,
-					 p, offset >> 9, PAGE_SIZE, 0, bdev,
+					 p, offset, PAGE_SIZE, 0, bdev,
 					 &epd->bio,
 					 end_bio_extent_buffer_writepage,
-					 0, epd->bio_flags, bio_flags, false);
-		epd->bio_flags = bio_flags;
+					 0, 0, 0, false);
 		if (ret) {
 			set_btree_ioerr(p);
 			if (PageWriteback(p))
@@ -3790,7 +3786,6 @@ int btree_write_cache_pages(struct address_space *mapping,
 		.tree = tree,
 		.extent_locked = 0,
 		.sync_io = wbc->sync_mode == WB_SYNC_ALL,
-		.bio_flags = 0,
 	};
 	int ret = 0;
 	int done = 0;
@@ -4063,10 +4058,7 @@ static void flush_epd_write_bio(struct extent_page_data *epd)
 	if (epd->bio) {
 		int ret;
 
-		bio_set_op_attrs(epd->bio, REQ_OP_WRITE,
-				 epd->sync_io ? REQ_SYNC : 0);
-
-		ret = submit_one_bio(epd->bio, 0, epd->bio_flags);
+		ret = submit_one_bio(epd->bio, 0, 0);
 		BUG_ON(ret < 0); /* -ENOMEM */
 		epd->bio = NULL;
 	}
@@ -4089,7 +4081,6 @@ int extent_write_full_page(struct extent_io_tree *tree, struct page *page,
 		.get_extent = get_extent,
 		.extent_locked = 0,
 		.sync_io = wbc->sync_mode == WB_SYNC_ALL,
-		.bio_flags = 0,
 	};
 
 	ret = __extent_writepage(page, wbc, &epd);
@@ -4114,7 +4105,6 @@ int extent_write_locked_range(struct extent_io_tree *tree, struct inode *inode,
 		.get_extent = get_extent,
 		.extent_locked = 1,
 		.sync_io = mode == WB_SYNC_ALL,
-		.bio_flags = 0,
 	};
 	struct writeback_control wbc_writepages = {
 		.sync_mode	= mode,
@@ -4154,7 +4144,6 @@ int extent_writepages(struct extent_io_tree *tree,
 		.get_extent = get_extent,
 		.extent_locked = 0,
 		.sync_io = wbc->sync_mode == WB_SYNC_ALL,
-		.bio_flags = 0,
 	};
 
 	ret = extent_write_cache_pages(mapping, wbc, __extent_writepage, &epd,
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index faffa28ba707..4a8861379d3e 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __EXTENTIO__
 #define __EXTENTIO__
 
@@ -33,7 +34,6 @@
  * type for this bio
  */
 #define EXTENT_BIO_COMPRESSED 1
-#define EXTENT_BIO_TREE_LOG 2
 #define EXTENT_BIO_FLAG_SHIFT 16
 
 /* these are bit numbers for test/set bit */
diff --git a/fs/btrfs/extent_map.c b/fs/btrfs/extent_map.c
index 69850155870c..2e348fb0b280 100644
--- a/fs/btrfs/extent_map.c
+++ b/fs/btrfs/extent_map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index a67b2def5413..64365bbc9b16 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __EXTENTMAP__
 #define __EXTENTMAP__
 
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 74fd7756cff3..f80254d82f40 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -856,7 +856,7 @@ next_slot:
 			btrfs_mark_buffer_dirty(leaf);
 
 			if (update_refs && disk_bytenr > 0) {
-				ret = btrfs_inc_extent_ref(trans, fs_info,
+				ret = btrfs_inc_extent_ref(trans, root,
 						disk_bytenr, num_bytes, 0,
 						root->root_key.objectid,
 						new_key.objectid,
@@ -940,7 +940,7 @@ delete_extent_item:
 				extent_end = ALIGN(extent_end,
 						   fs_info->sectorsize);
 			} else if (update_refs && disk_bytenr > 0) {
-				ret = btrfs_free_extent(trans, fs_info,
+				ret = btrfs_free_extent(trans, root,
 						disk_bytenr, num_bytes, 0,
 						root->root_key.objectid,
 						key.objectid, key.offset -
@@ -1234,7 +1234,7 @@ again:
 						extent_end - split);
 		btrfs_mark_buffer_dirty(leaf);
 
-		ret = btrfs_inc_extent_ref(trans, fs_info, bytenr, num_bytes,
+		ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes,
 					   0, root->root_key.objectid,
 					   ino, orig_offset);
 		if (ret) {
@@ -1268,7 +1268,7 @@ again:
 		extent_end = other_end;
 		del_slot = path->slots[0] + 1;
 		del_nr++;
-		ret = btrfs_free_extent(trans, fs_info, bytenr, num_bytes,
+		ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
 					0, root->root_key.objectid,
 					ino, orig_offset);
 		if (ret) {
@@ -1288,7 +1288,7 @@ again:
 		key.offset = other_start;
 		del_slot = path->slots[0];
 		del_nr++;
-		ret = btrfs_free_extent(trans, fs_info, bytenr, num_bytes,
+		ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
 					0, root->root_key.objectid,
 					ino, orig_offset);
 		if (ret) {
@@ -1590,7 +1590,6 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
 	int ret = 0;
 	bool only_release_metadata = false;
 	bool force_page_uptodate = false;
-	bool need_unlock;
 
 	nrptrs = min(DIV_ROUND_UP(iov_iter_count(i), PAGE_SIZE),
 			PAGE_SIZE / (sizeof(struct page *)));
@@ -1613,6 +1612,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
 		size_t copied;
 		size_t dirty_sectors;
 		size_t num_sectors;
+		int extents_locked;
 
 		WARN_ON(num_pages > nrptrs);
 
@@ -1656,6 +1656,7 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
 			}
 		}
 
+		WARN_ON(reserve_bytes == 0);
 		ret = btrfs_delalloc_reserve_metadata(BTRFS_I(inode),
 				reserve_bytes);
 		if (ret) {
@@ -1669,7 +1670,6 @@ static noinline ssize_t __btrfs_buffered_write(struct file *file,
 		}
 
 		release_bytes = reserve_bytes;
-		need_unlock = false;
 again:
 		/*
 		 * This is going to setup the pages array with the number of
@@ -1679,19 +1679,23 @@ again:
 		ret = prepare_pages(inode, pages, num_pages,
 				    pos, write_bytes,
 				    force_page_uptodate);
-		if (ret)
+		if (ret) {
+			btrfs_delalloc_release_extents(BTRFS_I(inode),
+						       reserve_bytes);
 			break;
+		}
 
-		ret = lock_and_cleanup_extent_if_need(BTRFS_I(inode), pages,
+		extents_locked = lock_and_cleanup_extent_if_need(
+				BTRFS_I(inode), pages,
 				num_pages, pos, write_bytes, &lockstart,
 				&lockend, &cached_state);
-		if (ret < 0) {
-			if (ret == -EAGAIN)
+		if (extents_locked < 0) {
+			if (extents_locked == -EAGAIN)
 				goto again;
+			btrfs_delalloc_release_extents(BTRFS_I(inode),
+						       reserve_bytes);
+			ret = extents_locked;
 			break;
-		} else if (ret > 0) {
-			need_unlock = true;
-			ret = 0;
 		}
 
 		copied = btrfs_copy_from_user(pos, write_bytes, pages, i);
@@ -1718,23 +1722,10 @@ again:
 						   PAGE_SIZE);
 		}
 
-		/*
-		 * If we had a short copy we need to release the excess delaloc
-		 * bytes we reserved.  We need to increment outstanding_extents
-		 * because btrfs_delalloc_release_space and
-		 * btrfs_delalloc_release_metadata will decrement it, but
-		 * we still have an outstanding extent for the chunk we actually
-		 * managed to copy.
-		 */
 		if (num_sectors > dirty_sectors) {
 			/* release everything except the sectors we dirtied */
 			release_bytes -= dirty_sectors <<
 						fs_info->sb->s_blocksize_bits;
-			if (copied > 0) {
-				spin_lock(&BTRFS_I(inode)->lock);
-				BTRFS_I(inode)->outstanding_extents++;
-				spin_unlock(&BTRFS_I(inode)->lock);
-			}
 			if (only_release_metadata) {
 				btrfs_delalloc_release_metadata(BTRFS_I(inode),
 								release_bytes);
@@ -1756,10 +1747,11 @@ again:
 		if (copied > 0)
 			ret = btrfs_dirty_pages(inode, pages, dirty_pages,
 						pos, copied, NULL);
-		if (need_unlock)
+		if (extents_locked)
 			unlock_extent_cached(&BTRFS_I(inode)->io_tree,
 					     lockstart, lockend, &cached_state,
 					     GFP_NOFS);
+		btrfs_delalloc_release_extents(BTRFS_I(inode), reserve_bytes);
 		if (ret) {
 			btrfs_drop_pages(pages, num_pages);
 			break;
@@ -1886,6 +1878,10 @@ static ssize_t btrfs_file_write_iter(struct kiocb *iocb,
 	loff_t oldsize;
 	int clean_page = 0;
 
+	if (!(iocb->ki_flags & IOCB_DIRECT) &&
+	    (iocb->ki_flags & IOCB_NOWAIT))
+		return -EOPNOTSUPP;
+
 	if (!inode_trylock(inode)) {
 		if (iocb->ki_flags & IOCB_NOWAIT)
 			return -EAGAIN;
@@ -2042,7 +2038,7 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 	struct btrfs_trans_handle *trans;
 	struct btrfs_log_ctx ctx;
 	int ret = 0, err;
-	bool full_sync = 0;
+	bool full_sync = false;
 	u64 len;
 
 	/*
@@ -3112,7 +3108,7 @@ out:
 
 static int btrfs_file_open(struct inode *inode, struct file *filp)
 {
-	filp->f_mode |= FMODE_AIO_NOWAIT;
+	filp->f_mode |= FMODE_NOWAIT;
 	return generic_file_open(inode, filp);
 }
 
diff --git a/fs/btrfs/free-space-tree.c b/fs/btrfs/free-space-tree.c
index 684f12247db7..fe5e0324dca9 100644
--- a/fs/btrfs/free-space-tree.c
+++ b/fs/btrfs/free-space-tree.c
@@ -1286,12 +1286,8 @@ static int __add_block_group_free_space(struct btrfs_trans_handle *trans,
 					struct btrfs_block_group_cache *block_group,
 					struct btrfs_path *path)
 {
-	u64 start, end;
 	int ret;
 
-	start = block_group->key.objectid;
-	end = block_group->key.objectid + block_group->key.offset;
-
 	block_group->needs_free_space = 0;
 
 	ret = add_new_free_space_info(trans, fs_info, block_group, path);
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index d02019747d00..022b19336fee 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -500,11 +500,12 @@ again:
 	ret = btrfs_prealloc_file_range_trans(inode, trans, 0, 0, prealloc,
 					      prealloc, prealloc, &alloc_hint);
 	if (ret) {
-		btrfs_delalloc_release_metadata(BTRFS_I(inode), prealloc);
+		btrfs_delalloc_release_extents(BTRFS_I(inode), prealloc);
 		goto out_put;
 	}
 
 	ret = btrfs_write_out_ino_cache(root, trans, path, inode);
+	btrfs_delalloc_release_extents(BTRFS_I(inode), prealloc);
 out_put:
 	iput(inode);
 out_release:
diff --git a/fs/btrfs/inode-map.h b/fs/btrfs/inode-map.h
index c8e864b2d530..6734ec92a1e9 100644
--- a/fs/btrfs/inode-map.h
+++ b/fs/btrfs/inode-map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BTRFS_INODE_MAP
 #define __BTRFS_INODE_MAP
 
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 17ad018da0a2..b93fe05a39c7 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -42,6 +42,7 @@
 #include <linux/blkdev.h>
 #include <linux/posix_acl_xattr.h>
 #include <linux/uio.h>
+#include <linux/magic.h>
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
@@ -67,7 +68,6 @@ struct btrfs_iget_args {
 };
 
 struct btrfs_dio_data {
-	u64 outstanding_extents;
 	u64 reserve;
 	u64 unsubmitted_oe_range_start;
 	u64 unsubmitted_oe_range_end;
@@ -135,6 +135,18 @@ static inline void btrfs_cleanup_ordered_extents(struct inode *inode,
 						 const u64 offset,
 						 const u64 bytes)
 {
+	unsigned long index = offset >> PAGE_SHIFT;
+	unsigned long end_index = (offset + bytes - 1) >> PAGE_SHIFT;
+	struct page *page;
+
+	while (index <= end_index) {
+		page = find_get_page(inode->i_mapping, index);
+		index++;
+		if (!page)
+			continue;
+		ClearPagePrivate2(page);
+		put_page(page);
+	}
 	return __endio_write_update_ordered(inode, offset + PAGE_SIZE,
 					    bytes - PAGE_SIZE, false);
 }
@@ -304,7 +316,7 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
 		btrfs_free_path(path);
 		return PTR_ERR(trans);
 	}
-	trans->block_rsv = &fs_info->delalloc_block_rsv;
+	trans->block_rsv = &BTRFS_I(inode)->block_rsv;
 
 	if (compressed_size && compressed_pages)
 		extent_item_size = btrfs_file_extent_calc_inline_size(
@@ -336,7 +348,6 @@ static noinline int cow_file_range_inline(struct btrfs_root *root,
 	}
 
 	set_bit(BTRFS_INODE_NEEDS_FULL_SYNC, &BTRFS_I(inode)->runtime_flags);
-	btrfs_delalloc_release_metadata(BTRFS_I(inode), end + 1 - start);
 	btrfs_drop_extent_cache(BTRFS_I(inode), start, aligned_end - 1, 0);
 out:
 	/*
@@ -446,7 +457,6 @@ static noinline void compress_file_range(struct inode *inode,
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
 	struct btrfs_root *root = BTRFS_I(inode)->root;
-	u64 num_bytes;
 	u64 blocksize = fs_info->sectorsize;
 	u64 actual_end;
 	u64 isize = i_size_read(inode);
@@ -496,8 +506,6 @@ again:
 
 	total_compressed = min_t(unsigned long, total_compressed,
 			BTRFS_MAX_UNCOMPRESSED);
-	num_bytes = ALIGN(end - start + 1, blocksize);
-	num_bytes = max(blocksize,  num_bytes);
 	total_in = 0;
 	ret = 0;
 
@@ -530,7 +538,10 @@ again:
 		 */
 		extent_range_clear_dirty_for_io(inode, start, end);
 		redirty = 1;
-		ret = btrfs_compress_pages(compress_type,
+
+		/* Compression level is applied here and only here */
+		ret = btrfs_compress_pages(
+			compress_type | (fs_info->compress_level << 4),
 					   inode->i_mapping, start,
 					   pages,
 					   &nr_pages,
@@ -558,7 +569,7 @@ again:
 cont:
 	if (start == 0) {
 		/* lets try to make an inline extent */
-		if (ret || total_in < (actual_end - start)) {
+		if (ret || total_in < actual_end) {
 			/* we didn't compress the entire range, try
 			 * to make an uncompressed inline extent.
 			 */
@@ -572,16 +583,21 @@ cont:
 		}
 		if (ret <= 0) {
 			unsigned long clear_flags = EXTENT_DELALLOC |
-				EXTENT_DELALLOC_NEW | EXTENT_DEFRAG;
+				EXTENT_DELALLOC_NEW | EXTENT_DEFRAG |
+				EXTENT_DO_ACCOUNTING;
 			unsigned long page_error_op;
 
-			clear_flags |= (ret < 0) ? EXTENT_DO_ACCOUNTING : 0;
 			page_error_op = ret < 0 ? PAGE_SET_ERROR : 0;
 
 			/*
 			 * inline extent creation worked or returned error,
 			 * we don't need to create any more async work items.
 			 * Unlock and free up our temp pages.
+			 *
+			 * We use DO_ACCOUNTING here because we need the
+			 * delalloc_release_metadata to be done _after_ we drop
+			 * our outstanding extent for clearing delalloc for this
+			 * range.
 			 */
 			extent_clear_unlock_delalloc(inode, start, end, end,
 						     NULL, clear_flags,
@@ -590,10 +606,6 @@ cont:
 						     PAGE_SET_WRITEBACK |
 						     page_error_op |
 						     PAGE_END_WRITEBACK);
-			if (ret == 0)
-				btrfs_free_reserved_data_space_noquota(inode,
-							       start,
-							       end - start + 1);
 			goto free_pages_out;
 		}
 	}
@@ -613,7 +625,6 @@ cont:
 		 */
 		total_in = ALIGN(total_in, PAGE_SIZE);
 		if (total_compressed + blocksize <= total_in) {
-			num_bytes = total_in;
 			*num_added += 1;
 
 			/*
@@ -621,12 +632,12 @@ cont:
 			 * allocation on disk for these compressed pages, and
 			 * will submit them to the elevator.
 			 */
-			add_async_extent(async_cow, start, num_bytes,
+			add_async_extent(async_cow, start, total_in,
 					total_compressed, pages, nr_pages,
 					compress_type);
 
-			if (start + num_bytes < end) {
-				start += num_bytes;
+			if (start + total_in < end) {
+				start += total_in;
 				pages = NULL;
 				cond_resched();
 				goto again;
@@ -970,15 +981,19 @@ static noinline int cow_file_range(struct inode *inode,
 		ret = cow_file_range_inline(root, inode, start, end, 0,
 					BTRFS_COMPRESS_NONE, NULL);
 		if (ret == 0) {
+			/*
+			 * We use DO_ACCOUNTING here because we need the
+			 * delalloc_release_metadata to be run _after_ we drop
+			 * our outstanding extent for clearing delalloc for this
+			 * range.
+			 */
 			extent_clear_unlock_delalloc(inode, start, end,
 				     delalloc_end, NULL,
 				     EXTENT_LOCKED | EXTENT_DELALLOC |
-				     EXTENT_DELALLOC_NEW |
-				     EXTENT_DEFRAG, PAGE_UNLOCK |
+				     EXTENT_DELALLOC_NEW | EXTENT_DEFRAG |
+				     EXTENT_DO_ACCOUNTING, PAGE_UNLOCK |
 				     PAGE_CLEAR_DIRTY | PAGE_SET_WRITEBACK |
 				     PAGE_END_WRITEBACK);
-			btrfs_free_reserved_data_space_noquota(inode, start,
-						end - start + 1);
 			*nr_written = *nr_written +
 			     (end - start + PAGE_SIZE) / PAGE_SIZE;
 			*page_started = 1;
@@ -1214,13 +1229,6 @@ static int cow_file_range_async(struct inode *inode, struct page *locked_page,
 
 		btrfs_queue_work(fs_info->delalloc_workers, &async_cow->work);
 
-		while (atomic_read(&fs_info->async_submit_draining) &&
-		       atomic_read(&fs_info->async_delalloc_pages)) {
-			wait_event(fs_info->async_submit_wait,
-				   (atomic_read(&fs_info->async_delalloc_pages) ==
-				    0));
-		}
-
 		*nr_written += nr_pages;
 		start = cur_end + 1;
 	}
@@ -1623,7 +1631,7 @@ static void btrfs_split_extent_hook(void *private_data,
 	}
 
 	spin_lock(&BTRFS_I(inode)->lock);
-	BTRFS_I(inode)->outstanding_extents++;
+	btrfs_mod_outstanding_extents(BTRFS_I(inode), 1);
 	spin_unlock(&BTRFS_I(inode)->lock);
 }
 
@@ -1653,7 +1661,7 @@ static void btrfs_merge_extent_hook(void *private_data,
 	/* we're not bigger than the max, unreserve the space and go */
 	if (new_size <= BTRFS_MAX_EXTENT_SIZE) {
 		spin_lock(&BTRFS_I(inode)->lock);
-		BTRFS_I(inode)->outstanding_extents--;
+		btrfs_mod_outstanding_extents(BTRFS_I(inode), -1);
 		spin_unlock(&BTRFS_I(inode)->lock);
 		return;
 	}
@@ -1684,7 +1692,7 @@ static void btrfs_merge_extent_hook(void *private_data,
 		return;
 
 	spin_lock(&BTRFS_I(inode)->lock);
-	BTRFS_I(inode)->outstanding_extents--;
+	btrfs_mod_outstanding_extents(BTRFS_I(inode), -1);
 	spin_unlock(&BTRFS_I(inode)->lock);
 }
 
@@ -1754,15 +1762,12 @@ static void btrfs_set_bit_hook(void *private_data,
 	if (!(state->state & EXTENT_DELALLOC) && (*bits & EXTENT_DELALLOC)) {
 		struct btrfs_root *root = BTRFS_I(inode)->root;
 		u64 len = state->end + 1 - state->start;
+		u32 num_extents = count_max_extents(len);
 		bool do_list = !btrfs_is_free_space_inode(BTRFS_I(inode));
 
-		if (*bits & EXTENT_FIRST_DELALLOC) {
-			*bits &= ~EXTENT_FIRST_DELALLOC;
-		} else {
-			spin_lock(&BTRFS_I(inode)->lock);
-			BTRFS_I(inode)->outstanding_extents++;
-			spin_unlock(&BTRFS_I(inode)->lock);
-		}
+		spin_lock(&BTRFS_I(inode)->lock);
+		btrfs_mod_outstanding_extents(BTRFS_I(inode), num_extents);
+		spin_unlock(&BTRFS_I(inode)->lock);
 
 		/* For sanity tests */
 		if (btrfs_is_testing(fs_info))
@@ -1816,13 +1821,9 @@ static void btrfs_clear_bit_hook(void *private_data,
 		struct btrfs_root *root = inode->root;
 		bool do_list = !btrfs_is_free_space_inode(inode);
 
-		if (*bits & EXTENT_FIRST_DELALLOC) {
-			*bits &= ~EXTENT_FIRST_DELALLOC;
-		} else if (!(*bits & EXTENT_CLEAR_META_RESV)) {
-			spin_lock(&inode->lock);
-			inode->outstanding_extents -= num_extents;
-			spin_unlock(&inode->lock);
-		}
+		spin_lock(&inode->lock);
+		btrfs_mod_outstanding_extents(inode, -num_extents);
+		spin_unlock(&inode->lock);
 
 		/*
 		 * We don't reserve metadata space for space cache inodes so we
@@ -2093,6 +2094,7 @@ again:
 				  0);
 	ClearPageChecked(page);
 	set_page_dirty(page);
+	btrfs_delalloc_release_extents(BTRFS_I(inode), PAGE_SIZE);
 out:
 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, page_start, page_end,
 			     &cached_state, GFP_NOFS);
@@ -2217,8 +2219,9 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
 	if (ret < 0)
 		goto out;
 	qg_released = ret;
-	ret = btrfs_alloc_reserved_file_extent(trans, root->root_key.objectid,
-			btrfs_ino(BTRFS_I(inode)), file_pos, qg_released, &ins);
+	ret = btrfs_alloc_reserved_file_extent(trans, root,
+					       btrfs_ino(BTRFS_I(inode)),
+					       file_pos, qg_released, &ins);
 out:
 	btrfs_free_path(path);
 
@@ -2452,7 +2455,7 @@ static noinline bool record_extent_backrefs(struct btrfs_path *path,
 		ret = iterate_inodes_from_logical(old->bytenr +
 						  old->extent_offset, fs_info,
 						  path, record_one_backref,
-						  old);
+						  old, false);
 		if (ret < 0 && ret != -ENOENT)
 			return false;
 
@@ -2670,7 +2673,7 @@ again:
 	inode_add_bytes(inode, len);
 	btrfs_release_path(path);
 
-	ret = btrfs_inc_extent_ref(trans, fs_info, new->bytenr,
+	ret = btrfs_inc_extent_ref(trans, root, new->bytenr,
 			new->disk_len, 0,
 			backref->root_id, backref->inum,
 			new->file_pos);	/* start - extent_offset */
@@ -2952,7 +2955,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
 			trans = NULL;
 			goto out;
 		}
-		trans->block_rsv = &fs_info->delalloc_block_rsv;
+		trans->block_rsv = &BTRFS_I(inode)->block_rsv;
 		ret = btrfs_update_inode_fallback(trans, root, inode);
 		if (ret) /* -ENOMEM or corruption */
 			btrfs_abort_transaction(trans, ret);
@@ -2988,7 +2991,7 @@ static int btrfs_finish_ordered_io(struct btrfs_ordered_extent *ordered_extent)
 		goto out;
 	}
 
-	trans->block_rsv = &fs_info->delalloc_block_rsv;
+	trans->block_rsv = &BTRFS_I(inode)->block_rsv;
 
 	if (test_bit(BTRFS_ORDERED_COMPRESSED, &ordered_extent->flags))
 		compress_type = ordered_extent->compress_type;
@@ -3046,9 +3049,6 @@ out:
 				 0, &cached_state, GFP_NOFS);
 	}
 
-	if (root != fs_info->tree_root)
-		btrfs_delalloc_release_metadata(BTRFS_I(inode),
-				ordered_extent->len);
 	if (trans)
 		btrfs_end_transaction(trans);
 
@@ -4360,47 +4360,11 @@ static int truncate_space_check(struct btrfs_trans_handle *trans,
 
 }
 
-static int truncate_inline_extent(struct inode *inode,
-				  struct btrfs_path *path,
-				  struct btrfs_key *found_key,
-				  const u64 item_end,
-				  const u64 new_size)
-{
-	struct extent_buffer *leaf = path->nodes[0];
-	int slot = path->slots[0];
-	struct btrfs_file_extent_item *fi;
-	u32 size = (u32)(new_size - found_key->offset);
-	struct btrfs_root *root = BTRFS_I(inode)->root;
-
-	fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);
-
-	if (btrfs_file_extent_compression(leaf, fi) != BTRFS_COMPRESS_NONE) {
-		loff_t offset = new_size;
-		loff_t page_end = ALIGN(offset, PAGE_SIZE);
-
-		/*
-		 * Zero out the remaining of the last page of our inline extent,
-		 * instead of directly truncating our inline extent here - that
-		 * would be much more complex (decompressing all the data, then
-		 * compressing the truncated data, which might be bigger than
-		 * the size of the inline extent, resize the extent, etc).
-		 * We release the path because to get the page we might need to
-		 * read the extent item from disk (data not in the page cache).
-		 */
-		btrfs_release_path(path);
-		return btrfs_truncate_block(inode, offset, page_end - offset,
-					0);
-	}
-
-	btrfs_set_file_extent_ram_bytes(leaf, fi, size);
-	size = btrfs_file_extent_calc_inline_size(size);
-	btrfs_truncate_item(root->fs_info, path, size, 1);
-
-	if (test_bit(BTRFS_ROOT_REF_COWS, &root->state))
-		inode_sub_bytes(inode, item_end + 1 - new_size);
-
-	return 0;
-}
+/*
+ * Return this if we need to call truncate_block for the last bit of the
+ * truncate.
+ */
+#define NEED_TRUNCATE_BLOCK 1
 
 /*
  * this can truncate away extent items, csum items and directory items.
@@ -4439,9 +4403,9 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
 	int err = 0;
 	u64 ino = btrfs_ino(BTRFS_I(inode));
 	u64 bytes_deleted = 0;
-	bool be_nice = 0;
-	bool should_throttle = 0;
-	bool should_end = 0;
+	bool be_nice = false;
+	bool should_throttle = false;
+	bool should_end = false;
 
 	BUG_ON(new_size > 0 && min_type != BTRFS_EXTENT_DATA_KEY);
 
@@ -4451,7 +4415,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
 	 */
 	if (!btrfs_is_free_space_inode(BTRFS_I(inode)) &&
 	    test_bit(BTRFS_ROOT_REF_COWS, &root->state))
-		be_nice = 1;
+		be_nice = true;
 
 	path = btrfs_alloc_path();
 	if (!path)
@@ -4561,11 +4525,6 @@ search_again:
 		if (found_type != BTRFS_EXTENT_DATA_KEY)
 			goto delete;
 
-		if (del_item)
-			last_size = found_key.offset;
-		else
-			last_size = new_size;
-
 		if (extent_type != BTRFS_FILE_EXTENT_INLINE) {
 			u64 num_dec;
 			extent_start = btrfs_file_extent_disk_bytenr(leaf, fi);
@@ -4607,40 +4566,30 @@ search_again:
 			 */
 			if (!del_item &&
 			    btrfs_file_extent_encryption(leaf, fi) == 0 &&
-			    btrfs_file_extent_other_encoding(leaf, fi) == 0) {
-
+			    btrfs_file_extent_other_encoding(leaf, fi) == 0 &&
+			    btrfs_file_extent_compression(leaf, fi) == 0) {
+				u32 size = (u32)(new_size - found_key.offset);
+
+				btrfs_set_file_extent_ram_bytes(leaf, fi, size);
+				size = btrfs_file_extent_calc_inline_size(size);
+				btrfs_truncate_item(root->fs_info, path, size, 1);
+			} else if (!del_item) {
 				/*
-				 * Need to release path in order to truncate a
-				 * compressed extent. So delete any accumulated
-				 * extent items so far.
+				 * We have to bail so the last_size is set to
+				 * just before this extent.
 				 */
-				if (btrfs_file_extent_compression(leaf, fi) !=
-				    BTRFS_COMPRESS_NONE && pending_del_nr) {
-					err = btrfs_del_items(trans, root, path,
-							      pending_del_slot,
-							      pending_del_nr);
-					if (err) {
-						btrfs_abort_transaction(trans,
-									err);
-						goto error;
-					}
-					pending_del_nr = 0;
-				}
+				err = NEED_TRUNCATE_BLOCK;
+				break;
+			}
 
-				err = truncate_inline_extent(inode, path,
-							     &found_key,
-							     item_end,
-							     new_size);
-				if (err) {
-					btrfs_abort_transaction(trans, err);
-					goto error;
-				}
-			} else if (test_bit(BTRFS_ROOT_REF_COWS,
-					    &root->state)) {
+			if (test_bit(BTRFS_ROOT_REF_COWS, &root->state))
 				inode_sub_bytes(inode, item_end + 1 - new_size);
-			}
 		}
 delete:
+		if (del_item)
+			last_size = found_key.offset;
+		else
+			last_size = new_size;
 		if (del_item) {
 			if (!pending_del_nr) {
 				/* no pending yet, add ourselves */
@@ -4657,14 +4606,14 @@ delete:
 		} else {
 			break;
 		}
-		should_throttle = 0;
+		should_throttle = false;
 
 		if (found_extent &&
 		    (test_bit(BTRFS_ROOT_REF_COWS, &root->state) ||
 		     root == fs_info->tree_root)) {
 			btrfs_set_path_blocking(path);
 			bytes_deleted += extent_num_bytes;
-			ret = btrfs_free_extent(trans, fs_info, extent_start,
+			ret = btrfs_free_extent(trans, root, extent_start,
 						extent_num_bytes, 0,
 						btrfs_header_owner(leaf),
 						ino, extent_offset);
@@ -4676,11 +4625,11 @@ delete:
 			if (be_nice) {
 				if (truncate_space_check(trans, root,
 							 extent_num_bytes)) {
-					should_end = 1;
+					should_end = true;
 				}
 				if (btrfs_should_throttle_delayed_refs(trans,
 								       fs_info))
-					should_throttle = 1;
+					should_throttle = true;
 			}
 		}
 
@@ -4789,8 +4738,11 @@ int btrfs_truncate_block(struct inode *inode, loff_t from, loff_t len,
 	    (!len || ((len & (blocksize - 1)) == 0)))
 		goto out;
 
+	block_start = round_down(from, blocksize);
+	block_end = block_start + blocksize - 1;
+
 	ret = btrfs_delalloc_reserve_space(inode, &data_reserved,
-			round_down(from, blocksize), blocksize);
+					   block_start, blocksize);
 	if (ret)
 		goto out;
 
@@ -4798,15 +4750,12 @@ again:
 	page = find_or_create_page(mapping, index, mask);
 	if (!page) {
 		btrfs_delalloc_release_space(inode, data_reserved,
-				round_down(from, blocksize),
-				blocksize);
+					     block_start, blocksize);
+		btrfs_delalloc_release_extents(BTRFS_I(inode), blocksize);
 		ret = -ENOMEM;
 		goto out;
 	}
 
-	block_start = round_down(from, blocksize);
-	block_end = block_start + blocksize - 1;
-
 	if (!PageUptodate(page)) {
 		ret = btrfs_readpage(NULL, page);
 		lock_page(page);
@@ -4871,6 +4820,7 @@ out_unlock:
 	if (ret)
 		btrfs_delalloc_release_space(inode, data_reserved, block_start,
 					     blocksize);
+	btrfs_delalloc_release_extents(BTRFS_I(inode), blocksize);
 	unlock_page(page);
 	put_page(page);
 out:
@@ -5821,7 +5771,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, struct dentry *dentry)
 
 	if (!IS_ERR(inode) && root != sub_root) {
 		down_read(&fs_info->cleanup_work_sem);
-		if (!(inode->i_sb->s_flags & MS_RDONLY))
+		if (!sb_rdonly(inode->i_sb))
 			ret = btrfs_orphan_cleanup(sub_root);
 		up_read(&fs_info->cleanup_work_sem);
 		if (ret) {
@@ -7785,33 +7735,6 @@ static struct extent_map *create_io_em(struct inode *inode, u64 start, u64 len,
 	return em;
 }
 
-static void adjust_dio_outstanding_extents(struct inode *inode,
-					   struct btrfs_dio_data *dio_data,
-					   const u64 len)
-{
-	unsigned num_extents = count_max_extents(len);
-
-	/*
-	 * If we have an outstanding_extents count still set then we're
-	 * within our reservation, otherwise we need to adjust our inode
-	 * counter appropriately.
-	 */
-	if (dio_data->outstanding_extents >= num_extents) {
-		dio_data->outstanding_extents -= num_extents;
-	} else {
-		/*
-		 * If dio write length has been split due to no large enough
-		 * contiguous space, we need to compensate our inode counter
-		 * appropriately.
-		 */
-		u64 num_needed = num_extents - dio_data->outstanding_extents;
-
-		spin_lock(&BTRFS_I(inode)->lock);
-		BTRFS_I(inode)->outstanding_extents += num_needed;
-		spin_unlock(&BTRFS_I(inode)->lock);
-	}
-}
-
 static int btrfs_get_blocks_direct(struct inode *inode, sector_t iblock,
 				   struct buffer_head *bh_result, int create)
 {
@@ -7973,7 +7896,6 @@ unlock:
 		if (!dio_data->overwrite && start + len > i_size_read(inode))
 			i_size_write(inode, start + len);
 
-		adjust_dio_outstanding_extents(inode, dio_data, len);
 		WARN_ON(dio_data->reserve < len);
 		dio_data->reserve -= len;
 		dio_data->unsubmitted_oe_range_end = start + len;
@@ -8003,14 +7925,6 @@ unlock_err:
 err:
 	if (dio_data)
 		current->journal_info = dio_data;
-	/*
-	 * Compensate the delalloc release we do in btrfs_direct_IO() when we
-	 * write less data then expected, so that we don't underflow our inode's
-	 * outstanding extents counter.
-	 */
-	if (create && dio_data)
-		adjust_dio_outstanding_extents(inode, dio_data, len);
-
 	return ret;
 }
 
@@ -8357,11 +8271,8 @@ static void btrfs_endio_direct_read(struct bio *bio)
 	struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
 	blk_status_t err = bio->bi_status;
 
-	if (dip->flags & BTRFS_DIO_ORIG_BIO_SUBMITTED) {
+	if (dip->flags & BTRFS_DIO_ORIG_BIO_SUBMITTED)
 		err = btrfs_subio_endio_read(inode, io_bio, err);
-		if (!err)
-			bio->bi_status = 0;
-	}
 
 	unlock_extent(&BTRFS_I(inode)->io_tree, dip->logical_offset,
 		      dip->logical_offset + dip->bytes - 1);
@@ -8369,7 +8280,7 @@ static void btrfs_endio_direct_read(struct bio *bio)
 
 	kfree(dip);
 
-	dio_bio->bi_status = bio->bi_status;
+	dio_bio->bi_status = err;
 	dio_end_io(dio_bio);
 
 	if (io_bio->end_io)
@@ -8387,6 +8298,7 @@ static void __endio_write_update_ordered(struct inode *inode,
 	btrfs_work_func_t func;
 	u64 ordered_offset = offset;
 	u64 ordered_bytes = bytes;
+	u64 last_offset;
 	int ret;
 
 	if (btrfs_is_free_space_inode(BTRFS_I(inode))) {
@@ -8398,6 +8310,7 @@ static void __endio_write_update_ordered(struct inode *inode,
 	}
 
 again:
+	last_offset = ordered_offset;
 	ret = btrfs_dec_test_first_ordered_pending(inode, &ordered,
 						   &ordered_offset,
 						   ordered_bytes,
@@ -8409,6 +8322,12 @@ again:
 	btrfs_queue_work(wq, &ordered->work);
 out_test:
 	/*
+	 * If btrfs_dec_test_ordered_pending does not find any ordered extent
+	 * in the range, we can exit.
+	 */
+	if (ordered_offset == last_offset)
+		return;
+	/*
 	 * our bio might span multiple ordered extents.  If we haven't
 	 * completed the accounting for the whole dio, go back and try again
 	 */
@@ -8478,7 +8397,7 @@ static void btrfs_end_dio_bio(struct bio *bio)
 	if (dip->errors) {
 		bio_io_error(dip->orig_bio);
 	} else {
-		dip->dio_bio->bi_status = 0;
+		dip->dio_bio->bi_status = BLK_STS_OK;
 		bio_endio(dip->orig_bio);
 	}
 out:
@@ -8560,7 +8479,7 @@ __btrfs_submit_dio_bio(struct bio *bio, struct inode *inode, u64 file_offset,
 			goto err;
 	}
 map:
-	ret = btrfs_map_bio(fs_info, bio, 0, async_submit);
+	ret = btrfs_map_bio(fs_info, bio, 0, 0);
 err:
 	bio_put(bio);
 	return ret;
@@ -8769,7 +8688,6 @@ free_ordered:
 }
 
 static ssize_t check_direct_IO(struct btrfs_fs_info *fs_info,
-			       struct kiocb *iocb,
 			       const struct iov_iter *iter, loff_t offset)
 {
 	int seg;
@@ -8816,7 +8734,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 	bool relock = false;
 	ssize_t ret;
 
-	if (check_direct_IO(fs_info, iocb, iter, offset))
+	if (check_direct_IO(fs_info, iter, offset))
 		return 0;
 
 	inode_dio_begin(inode);
@@ -8851,7 +8769,6 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 						   offset, count);
 		if (ret)
 			goto out;
-		dio_data.outstanding_extents = count_max_extents(count);
 
 		/*
 		 * We need to know how many extents we reserved so that we can
@@ -8898,6 +8815,7 @@ static ssize_t btrfs_direct_IO(struct kiocb *iocb, struct iov_iter *iter)
 		} else if (ret >= 0 && (size_t)ret < count)
 			btrfs_delalloc_release_space(inode, data_reserved,
 					offset, count - (size_t)ret);
+		btrfs_delalloc_release_extents(BTRFS_I(inode), count);
 	}
 out:
 	if (wakeup)
@@ -9215,9 +9133,6 @@ again:
 					  fs_info->sectorsize);
 		if (reserved_space < PAGE_SIZE) {
 			end = page_start + reserved_space - 1;
-			spin_lock(&BTRFS_I(inode)->lock);
-			BTRFS_I(inode)->outstanding_extents++;
-			spin_unlock(&BTRFS_I(inode)->lock);
 			btrfs_delalloc_release_space(inode, data_reserved,
 					page_start, PAGE_SIZE - reserved_space);
 		}
@@ -9269,12 +9184,14 @@ again:
 
 out_unlock:
 	if (!ret) {
+		btrfs_delalloc_release_extents(BTRFS_I(inode), PAGE_SIZE);
 		sb_end_pagefault(inode->i_sb);
 		extent_changeset_free(data_reserved);
 		return VM_FAULT_LOCKED;
 	}
 	unlock_page(page);
 out:
+	btrfs_delalloc_release_extents(BTRFS_I(inode), PAGE_SIZE);
 	btrfs_delalloc_release_space(inode, data_reserved, page_start,
 				     reserved_space);
 out_noreserve:
@@ -9370,12 +9287,12 @@ static int btrfs_truncate(struct inode *inode)
 		ret = btrfs_truncate_inode_items(trans, root, inode,
 						 inode->i_size,
 						 BTRFS_EXTENT_DATA_KEY);
+		trans->block_rsv = &fs_info->trans_block_rsv;
 		if (ret != -ENOSPC && ret != -EAGAIN) {
 			err = ret;
 			break;
 		}
 
-		trans->block_rsv = &fs_info->trans_block_rsv;
 		ret = btrfs_update_inode(trans, root, inode);
 		if (ret) {
 			err = ret;
@@ -9399,6 +9316,27 @@ static int btrfs_truncate(struct inode *inode)
 		trans->block_rsv = rsv;
 	}
 
+	/*
+	 * We can't call btrfs_truncate_block inside a trans handle as we could
+	 * deadlock with freeze, if we got NEED_TRUNCATE_BLOCK then we know
+	 * we've truncated everything except the last little bit, and can do
+	 * btrfs_truncate_block and then update the disk_i_size.
+	 */
+	if (ret == NEED_TRUNCATE_BLOCK) {
+		btrfs_end_transaction(trans);
+		btrfs_btree_balance_dirty(fs_info);
+
+		ret = btrfs_truncate_block(inode, inode->i_size, 0, 0);
+		if (ret)
+			goto out;
+		trans = btrfs_start_transaction(root, 1);
+		if (IS_ERR(trans)) {
+			ret = PTR_ERR(trans);
+			goto out;
+		}
+		btrfs_ordered_update_i_size(inode, inode->i_size, NULL);
+	}
+
 	if (ret == 0 && inode->i_nlink > 0) {
 		trans->block_rsv = root->orphan_block_rsv;
 		ret = btrfs_orphan_del(trans, BTRFS_I(inode));
@@ -9463,6 +9401,7 @@ int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
 
 struct inode *btrfs_alloc_inode(struct super_block *sb)
 {
+	struct btrfs_fs_info *fs_info = btrfs_sb(sb);
 	struct btrfs_inode *ei;
 	struct inode *inode;
 
@@ -9489,8 +9428,9 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
 
 	spin_lock_init(&ei->lock);
 	ei->outstanding_extents = 0;
-	ei->reserved_extents = 0;
-
+	if (sb->s_magic != BTRFS_TEST_MAGIC)
+		btrfs_init_metadata_block_rsv(fs_info, &ei->block_rsv,
+					      BTRFS_BLOCK_RSV_DELALLOC);
 	ei->runtime_flags = 0;
 	ei->prop_compress = BTRFS_COMPRESS_NONE;
 	ei->defrag_compress = BTRFS_COMPRESS_NONE;
@@ -9540,8 +9480,9 @@ void btrfs_destroy_inode(struct inode *inode)
 
 	WARN_ON(!hlist_empty(&inode->i_dentry));
 	WARN_ON(inode->i_data.nrpages);
+	WARN_ON(BTRFS_I(inode)->block_rsv.reserved);
+	WARN_ON(BTRFS_I(inode)->block_rsv.size);
 	WARN_ON(BTRFS_I(inode)->outstanding_extents);
-	WARN_ON(BTRFS_I(inode)->reserved_extents);
 	WARN_ON(BTRFS_I(inode)->delalloc_bytes);
 	WARN_ON(BTRFS_I(inode)->new_delalloc_bytes);
 	WARN_ON(BTRFS_I(inode)->csum_bytes);
@@ -10320,19 +10261,6 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
 	ret = __start_delalloc_inodes(root, delay_iput, -1);
 	if (ret > 0)
 		ret = 0;
-	/*
-	 * the filemap_flush will queue IO into the worker threads, but
-	 * we have to make sure the IO is actually started and that
-	 * ordered extents get created before we return
-	 */
-	atomic_inc(&fs_info->async_submit_draining);
-	while (atomic_read(&fs_info->nr_async_submits) ||
-	       atomic_read(&fs_info->async_delalloc_pages)) {
-		wait_event(fs_info->async_submit_wait,
-			   (atomic_read(&fs_info->nr_async_submits) == 0 &&
-			    atomic_read(&fs_info->async_delalloc_pages) == 0));
-	}
-	atomic_dec(&fs_info->async_submit_draining);
 	return ret;
 }
 
@@ -10374,14 +10302,6 @@ int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int delay_iput,
 	spin_unlock(&fs_info->delalloc_root_lock);
 
 	ret = 0;
-	atomic_inc(&fs_info->async_submit_draining);
-	while (atomic_read(&fs_info->nr_async_submits) ||
-	      atomic_read(&fs_info->async_delalloc_pages)) {
-		wait_event(fs_info->async_submit_wait,
-		   (atomic_read(&fs_info->nr_async_submits) == 0 &&
-		    atomic_read(&fs_info->async_delalloc_pages) == 0));
-	}
-	atomic_dec(&fs_info->async_submit_draining);
 out:
 	if (!list_empty_careful(&splice)) {
 		spin_lock(&fs_info->delalloc_root_lock);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index ae8fbf9d3de2..fd172a93d11a 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -86,6 +86,19 @@ struct btrfs_ioctl_received_subvol_args_32 {
 				struct btrfs_ioctl_received_subvol_args_32)
 #endif
 
+#if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT)
+struct btrfs_ioctl_send_args_32 {
+	__s64 send_fd;			/* in */
+	__u64 clone_sources_count;	/* in */
+	compat_uptr_t clone_sources;	/* in */
+	__u64 parent_root;		/* in */
+	__u64 flags;			/* in */
+	__u64 reserved[4];		/* in */
+} __attribute__ ((__packed__));
+
+#define BTRFS_IOC_SEND_32 _IOW(BTRFS_IOCTL_MAGIC, 38, \
+			       struct btrfs_ioctl_send_args_32)
+#endif
 
 static int btrfs_clone(struct inode *src, struct inode *inode,
 		       u64 off, u64 olen, u64 olen_aligned, u64 destoff,
@@ -296,8 +309,10 @@ static int btrfs_ioctl_setflags(struct file *file, void __user *arg)
 
 		if (fs_info->compress_type == BTRFS_COMPRESS_LZO)
 			comp = "lzo";
-		else
+		else if (fs_info->compress_type == BTRFS_COMPRESS_ZLIB)
 			comp = "zlib";
+		else
+			comp = "zstd";
 		ret = btrfs_set_prop(inode, "btrfs.compression",
 				     comp, strlen(comp), 0);
 		if (ret)
@@ -607,23 +622,6 @@ fail_free:
 	return ret;
 }
 
-static void btrfs_wait_for_no_snapshotting_writes(struct btrfs_root *root)
-{
-	s64 writers;
-	DEFINE_WAIT(wait);
-
-	do {
-		prepare_to_wait(&root->subv_writers->wait, &wait,
-				TASK_UNINTERRUPTIBLE);
-
-		writers = percpu_counter_sum(&root->subv_writers->counter);
-		if (writers)
-			schedule();
-
-		finish_wait(&root->subv_writers->wait, &wait);
-	} while (writers);
-}
-
 static int create_snapshot(struct btrfs_root *root, struct inode *dir,
 			   struct dentry *dentry,
 			   u64 *async_transid, bool readonly,
@@ -652,7 +650,9 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
 
 	atomic_inc(&root->will_be_snapshotted);
 	smp_mb__after_atomic();
-	btrfs_wait_for_no_snapshotting_writes(root);
+	/* wait for no snapshot writes */
+	wait_event(root->subv_writers->wait,
+		   percpu_counter_sum(&root->subv_writers->counter) == 0);
 
 	ret = btrfs_start_delalloc_inodes(root, 0);
 	if (ret)
@@ -1217,6 +1217,7 @@ again:
 		unlock_page(pages[i]);
 		put_page(pages[i]);
 	}
+	btrfs_delalloc_release_extents(BTRFS_I(inode), page_cnt << PAGE_SHIFT);
 	extent_changeset_free(data_reserved);
 	return i_done;
 out:
@@ -1227,6 +1228,7 @@ out:
 	btrfs_delalloc_release_space(inode, data_reserved,
 			start_index << PAGE_SHIFT,
 			page_cnt << PAGE_SHIFT);
+	btrfs_delalloc_release_extents(BTRFS_I(inode), page_cnt << PAGE_SHIFT);
 	extent_changeset_free(data_reserved);
 	return ret;
 
@@ -1418,23 +1420,10 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
 			filemap_flush(inode->i_mapping);
 	}
 
-	if (do_compress) {
-		/* the filemap_flush will queue IO into the worker threads, but
-		 * we have to make sure the IO is actually started and that
-		 * ordered extents get created before we return
-		 */
-		atomic_inc(&fs_info->async_submit_draining);
-		while (atomic_read(&fs_info->nr_async_submits) ||
-		       atomic_read(&fs_info->async_delalloc_pages)) {
-			wait_event(fs_info->async_submit_wait,
-				   (atomic_read(&fs_info->nr_async_submits) == 0 &&
-				    atomic_read(&fs_info->async_delalloc_pages) == 0));
-		}
-		atomic_dec(&fs_info->async_submit_draining);
-	}
-
 	if (range->compress_type == BTRFS_COMPRESS_LZO) {
 		btrfs_set_fs_incompat(fs_info, COMPRESS_LZO);
+	} else if (range->compress_type == BTRFS_COMPRESS_ZSTD) {
+		btrfs_set_fs_incompat(fs_info, COMPRESS_ZSTD);
 	}
 
 	ret = defrag_count;
@@ -1838,8 +1827,13 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
 
 	ret = btrfs_update_root(trans, fs_info->tree_root,
 				&root->root_key, &root->root_item);
+	if (ret < 0) {
+		btrfs_end_transaction(trans);
+		goto out_reset;
+	}
+
+	ret = btrfs_commit_transaction(trans);
 
-	btrfs_commit_transaction(trans);
 out_reset:
 	if (ret)
 		btrfs_set_root_flags(&root->root_item, root_flags);
@@ -2175,7 +2169,7 @@ static noinline int btrfs_ioctl_tree_search_v2(struct file *file,
 
 	inode = file_inode(file);
 	ret = search_ioctl(inode, &args.key, &buf_size,
-			   (char *)(&uarg->buf[0]));
+			   (char __user *)(&uarg->buf[0]));
 	if (ret == 0 && copy_to_user(&uarg->key, &args.key, sizeof(args.key)))
 		ret = -EFAULT;
 	else if (ret == -EOVERFLOW &&
@@ -2769,9 +2763,9 @@ static long btrfs_ioctl_fs_info(struct btrfs_fs_info *fs_info,
 	}
 	mutex_unlock(&fs_devices->device_list_mutex);
 
-	fi_args->nodesize = fs_info->super_copy->nodesize;
-	fi_args->sectorsize = fs_info->super_copy->sectorsize;
-	fi_args->clone_alignment = fs_info->super_copy->sectorsize;
+	fi_args->nodesize = fs_info->nodesize;
+	fi_args->sectorsize = fs_info->sectorsize;
+	fi_args->clone_alignment = fs_info->sectorsize;
 
 	if (copy_to_user(arg, fi_args, sizeof(*fi_args)))
 		ret = -EFAULT;
@@ -3028,7 +3022,7 @@ static int btrfs_cmp_data_prepare(struct inode *src, u64 loff,
 out:
 	if (ret)
 		btrfs_cmp_data_free(cmp);
-	return 0;
+	return ret;
 }
 
 static int btrfs_cmp_data(u64 len, struct cmp_pages *cmp)
@@ -3702,7 +3696,7 @@ process_slot:
 				if (disko) {
 					inode_add_bytes(inode, datal);
 					ret = btrfs_inc_extent_ref(trans,
-							fs_info,
+							root,
 							disko, diskl, 0,
 							root->root_key.objectid,
 							btrfs_ino(BTRFS_I(inode)),
@@ -4057,6 +4051,10 @@ static long btrfs_ioctl_default_subvol(struct file *file, void __user *argp)
 		ret = PTR_ERR(new_root);
 		goto out;
 	}
+	if (!is_fstree(new_root->objectid)) {
+		ret = -ENOENT;
+		goto out;
+	}
 
 	path = btrfs_alloc_path();
 	if (!path) {
@@ -4121,10 +4119,12 @@ static long btrfs_ioctl_space_info(struct btrfs_fs_info *fs_info,
 	struct btrfs_ioctl_space_info *dest_orig;
 	struct btrfs_ioctl_space_info __user *user_dest;
 	struct btrfs_space_info *info;
-	u64 types[] = {BTRFS_BLOCK_GROUP_DATA,
-		       BTRFS_BLOCK_GROUP_SYSTEM,
-		       BTRFS_BLOCK_GROUP_METADATA,
-		       BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_METADATA};
+	static const u64 types[] = {
+		BTRFS_BLOCK_GROUP_DATA,
+		BTRFS_BLOCK_GROUP_SYSTEM,
+		BTRFS_BLOCK_GROUP_METADATA,
+		BTRFS_BLOCK_GROUP_DATA | BTRFS_BLOCK_GROUP_METADATA
+	};
 	int num_types = 4;
 	int alloc_size;
 	int ret = 0;
@@ -4422,7 +4422,7 @@ static long btrfs_ioctl_dev_replace(struct btrfs_fs_info *fs_info,
 
 	switch (p->cmd) {
 	case BTRFS_IOCTL_DEV_REPLACE_CMD_START:
-		if (fs_info->sb->s_flags & MS_RDONLY) {
+		if (sb_rdonly(fs_info->sb)) {
 			ret = -EROFS;
 			goto out;
 		}
@@ -4496,8 +4496,8 @@ static long btrfs_ioctl_ino_to_path(struct btrfs_root *root, void __user *arg)
 		ipath->fspath->val[i] = rel_ptr;
 	}
 
-	ret = copy_to_user((void *)(unsigned long)ipa->fspath,
-			   (void *)(unsigned long)ipath->fspath, size);
+	ret = copy_to_user((void __user *)(unsigned long)ipa->fspath,
+			   ipath->fspath, size);
 	if (ret) {
 		ret = -EFAULT;
 		goto out;
@@ -4532,13 +4532,14 @@ static int build_ino_list(u64 inum, u64 offset, u64 root, void *ctx)
 }
 
 static long btrfs_ioctl_logical_to_ino(struct btrfs_fs_info *fs_info,
-					void __user *arg)
+					void __user *arg, int version)
 {
 	int ret = 0;
 	int size;
 	struct btrfs_ioctl_logical_ino_args *loi;
 	struct btrfs_data_container *inodes = NULL;
 	struct btrfs_path *path = NULL;
+	bool ignore_offset;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
@@ -4547,13 +4548,30 @@ static long btrfs_ioctl_logical_to_ino(struct btrfs_fs_info *fs_info,
 	if (IS_ERR(loi))
 		return PTR_ERR(loi);
 
+	if (version == 1) {
+		ignore_offset = false;
+		size = min_t(u32, loi->size, SZ_64K);
+	} else {
+		/* All reserved bits must be 0 for now */
+		if (memchr_inv(loi->reserved, 0, sizeof(loi->reserved))) {
+			ret = -EINVAL;
+			goto out_loi;
+		}
+		/* Only accept flags we have defined so far */
+		if (loi->flags & ~(BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET)) {
+			ret = -EINVAL;
+			goto out_loi;
+		}
+		ignore_offset = loi->flags & BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET;
+		size = min_t(u32, loi->size, SZ_16M);
+	}
+
 	path = btrfs_alloc_path();
 	if (!path) {
 		ret = -ENOMEM;
 		goto out;
 	}
 
-	size = min_t(u32, loi->size, SZ_64K);
 	inodes = init_data_container(size);
 	if (IS_ERR(inodes)) {
 		ret = PTR_ERR(inodes);
@@ -4562,20 +4580,21 @@ static long btrfs_ioctl_logical_to_ino(struct btrfs_fs_info *fs_info,
 	}
 
 	ret = iterate_inodes_from_logical(loi->logical, fs_info, path,
-					  build_ino_list, inodes);
+					  build_ino_list, inodes, ignore_offset);
 	if (ret == -EINVAL)
 		ret = -ENOENT;
 	if (ret < 0)
 		goto out;
 
-	ret = copy_to_user((void *)(unsigned long)loi->inodes,
-			   (void *)(unsigned long)inodes, size);
+	ret = copy_to_user((void __user *)(unsigned long)loi->inodes, inodes,
+			   size);
 	if (ret)
 		ret = -EFAULT;
 
 out:
 	btrfs_free_path(path);
 	kvfree(inodes);
+out_loi:
 	kfree(loi);
 
 	return ret;
@@ -5152,15 +5171,11 @@ static long _btrfs_ioctl_set_received_subvol(struct file *file,
 					  root->root_key.objectid);
 		if (ret < 0 && ret != -EEXIST) {
 			btrfs_abort_transaction(trans, ret);
+			btrfs_end_transaction(trans);
 			goto out;
 		}
 	}
 	ret = btrfs_commit_transaction(trans);
-	if (ret < 0) {
-		btrfs_abort_transaction(trans, ret);
-		goto out;
-	}
-
 out:
 	up_write(&fs_info->subvol_sem);
 	mnt_drop_write_file(file);
@@ -5482,6 +5497,41 @@ out_drop_write:
 	return ret;
 }
 
+static int _btrfs_ioctl_send(struct file *file, void __user *argp, bool compat)
+{
+	struct btrfs_ioctl_send_args *arg;
+	int ret;
+
+	if (compat) {
+#if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT)
+		struct btrfs_ioctl_send_args_32 args32;
+
+		ret = copy_from_user(&args32, argp, sizeof(args32));
+		if (ret)
+			return -EFAULT;
+		arg = kzalloc(sizeof(*arg), GFP_KERNEL);
+		if (!arg)
+			return -ENOMEM;
+		arg->send_fd = args32.send_fd;
+		arg->clone_sources_count = args32.clone_sources_count;
+		arg->clone_sources = compat_ptr(args32.clone_sources);
+		arg->parent_root = args32.parent_root;
+		arg->flags = args32.flags;
+		memcpy(arg->reserved, args32.reserved,
+		       sizeof(args32.reserved));
+#else
+		return -ENOTTY;
+#endif
+	} else {
+		arg = memdup_user(argp, sizeof(*arg));
+		if (IS_ERR(arg))
+			return PTR_ERR(arg);
+	}
+	ret = btrfs_ioctl_send(file, arg);
+	kfree(arg);
+	return ret;
+}
+
 long btrfs_ioctl(struct file *file, unsigned int
 		cmd, unsigned long arg)
 {
@@ -5546,7 +5596,9 @@ long btrfs_ioctl(struct file *file, unsigned int
 	case BTRFS_IOC_INO_PATHS:
 		return btrfs_ioctl_ino_to_path(root, argp);
 	case BTRFS_IOC_LOGICAL_INO:
-		return btrfs_ioctl_logical_to_ino(fs_info, argp);
+		return btrfs_ioctl_logical_to_ino(fs_info, argp, 1);
+	case BTRFS_IOC_LOGICAL_INO_V2:
+		return btrfs_ioctl_logical_to_ino(fs_info, argp, 2);
 	case BTRFS_IOC_SPACE_INFO:
 		return btrfs_ioctl_space_info(fs_info, argp);
 	case BTRFS_IOC_SYNC: {
@@ -5587,7 +5639,11 @@ long btrfs_ioctl(struct file *file, unsigned int
 		return btrfs_ioctl_set_received_subvol_32(file, argp);
 #endif
 	case BTRFS_IOC_SEND:
-		return btrfs_ioctl_send(file, argp);
+		return _btrfs_ioctl_send(file, argp, false);
+#if defined(CONFIG_64BIT) && defined(CONFIG_COMPAT)
+	case BTRFS_IOC_SEND_32:
+		return _btrfs_ioctl_send(file, argp, true);
+#endif
 	case BTRFS_IOC_GET_DEV_STATS:
 		return btrfs_ioctl_get_dev_stats(fs_info, argp);
 	case BTRFS_IOC_QUOTA_CTL:
diff --git a/fs/btrfs/lzo.c b/fs/btrfs/lzo.c
index d433e75d489a..6c7f18cd3b61 100644
--- a/fs/btrfs/lzo.c
+++ b/fs/btrfs/lzo.c
@@ -430,10 +430,15 @@ out:
 	return ret;
 }
 
+static void lzo_set_level(struct list_head *ws, unsigned int type)
+{
+}
+
 const struct btrfs_compress_op btrfs_lzo_compress = {
 	.alloc_workspace	= lzo_alloc_workspace,
 	.free_workspace		= lzo_free_workspace,
 	.compress_pages		= lzo_compress_pages,
 	.decompress_bio		= lzo_decompress_bio,
 	.decompress		= lzo_decompress,
+	.set_level		= lzo_set_level,
 };
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index a3aca495e33e..5b311aeddcc8 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -242,6 +242,15 @@ static int __btrfs_add_ordered_extent(struct inode *inode, u64 file_offset,
 	}
 	spin_unlock(&root->ordered_extent_lock);
 
+	/*
+	 * We don't need the count_max_extents here, we can assume that all of
+	 * that work has been done at higher layers, so this is truly the
+	 * smallest the extent is going to get.
+	 */
+	spin_lock(&BTRFS_I(inode)->lock);
+	btrfs_mod_outstanding_extents(BTRFS_I(inode), 1);
+	spin_unlock(&BTRFS_I(inode)->lock);
+
 	return 0;
 }
 
@@ -591,11 +600,19 @@ void btrfs_remove_ordered_extent(struct inode *inode,
 {
 	struct btrfs_fs_info *fs_info = btrfs_sb(inode->i_sb);
 	struct btrfs_ordered_inode_tree *tree;
-	struct btrfs_root *root = BTRFS_I(inode)->root;
+	struct btrfs_inode *btrfs_inode = BTRFS_I(inode);
+	struct btrfs_root *root = btrfs_inode->root;
 	struct rb_node *node;
 	bool dec_pending_ordered = false;
 
-	tree = &BTRFS_I(inode)->ordered_tree;
+	/* This is paired with btrfs_add_ordered_extent. */
+	spin_lock(&btrfs_inode->lock);
+	btrfs_mod_outstanding_extents(btrfs_inode, -1);
+	spin_unlock(&btrfs_inode->lock);
+	if (root != fs_info->tree_root)
+		btrfs_delalloc_release_metadata(btrfs_inode, entry->len);
+
+	tree = &btrfs_inode->ordered_tree;
 	spin_lock_irq(&tree->lock);
 	node = &entry->rb_node;
 	rb_erase(node, &tree->tree);
diff --git a/fs/btrfs/props.c b/fs/btrfs/props.c
index 09c0266f248d..f6a05f836629 100644
--- a/fs/btrfs/props.c
+++ b/fs/btrfs/props.c
@@ -390,6 +390,8 @@ static int prop_compression_validate(const char *value, size_t len)
 		return 0;
 	else if (!strncmp("zlib", value, len))
 		return 0;
+	else if (!strncmp("zstd", value, len))
+		return 0;
 
 	return -EINVAL;
 }
@@ -412,6 +414,8 @@ static int prop_compression_apply(struct inode *inode,
 		type = BTRFS_COMPRESS_LZO;
 	else if (!strncmp("zlib", value, 4))
 		type = BTRFS_COMPRESS_ZLIB;
+	else if (!strncmp("zstd", value, len))
+		type = BTRFS_COMPRESS_ZSTD;
 	else
 		return -EINVAL;
 
@@ -429,6 +433,8 @@ static const char *prop_compression_extract(struct inode *inode)
 		return "zlib";
 	case BTRFS_COMPRESS_LZO:
 		return "lzo";
+	case BTRFS_COMPRESS_ZSTD:
+		return "zstd";
 	}
 
 	return NULL;
diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index 5c8b61c86e61..168fd03ca3ac 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -807,7 +807,6 @@ static int btrfs_clean_quota_tree(struct btrfs_trans_handle *trans,
 	}
 	ret = 0;
 out:
-	set_bit(BTRFS_FS_QUOTA_DISABLING, &root->fs_info->flags);
 	btrfs_free_path(path);
 	return ret;
 }
@@ -953,7 +952,6 @@ int btrfs_quota_disable(struct btrfs_trans_handle *trans,
 	if (!fs_info->quota_root)
 		goto out;
 	clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
-	set_bit(BTRFS_FS_QUOTA_DISABLING, &fs_info->flags);
 	btrfs_qgroup_wait_for_completion(fs_info, false);
 	spin_lock(&fs_info->qgroup_lock);
 	quota_root = fs_info->quota_root;
@@ -1307,6 +1305,8 @@ int btrfs_remove_qgroup(struct btrfs_trans_handle *trans,
 		}
 	}
 	ret = del_qgroup_item(trans, quota_root, qgroupid);
+	if (ret && ret != -ENOENT)
+		goto out;
 
 	while (!list_empty(&qgroup->groups)) {
 		list = list_first_entry(&qgroup->groups,
@@ -1441,7 +1441,7 @@ int btrfs_qgroup_trace_extent_post(struct btrfs_fs_info *fs_info,
 	u64 bytenr = qrecord->bytenr;
 	int ret;
 
-	ret = btrfs_find_all_roots(NULL, fs_info, bytenr, 0, &old_root);
+	ret = btrfs_find_all_roots(NULL, fs_info, bytenr, 0, &old_root, false);
 	if (ret < 0)
 		return ret;
 
@@ -2031,7 +2031,7 @@ int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans,
 				/* Search commit root to find old_roots */
 				ret = btrfs_find_all_roots(NULL, fs_info,
 						record->bytenr, 0,
-						&record->old_roots);
+						&record->old_roots, false);
 				if (ret < 0)
 					goto cleanup;
 			}
@@ -2042,7 +2042,7 @@ int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans,
 			 * root. It's safe inside commit_transaction().
 			 */
 			ret = btrfs_find_all_roots(trans, fs_info,
-					record->bytenr, SEQ_LAST, &new_roots);
+				record->bytenr, SEQ_LAST, &new_roots, false);
 			if (ret < 0)
 				goto cleanup;
 			if (qgroup_to_skip) {
@@ -2086,8 +2086,6 @@ int btrfs_run_qgroups(struct btrfs_trans_handle *trans,
 
 	if (test_and_clear_bit(BTRFS_FS_QUOTA_ENABLING, &fs_info->flags))
 		set_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
-	if (test_and_clear_bit(BTRFS_FS_QUOTA_DISABLING, &fs_info->flags))
-		clear_bit(BTRFS_FS_QUOTA_ENABLED, &fs_info->flags);
 
 	spin_lock(&fs_info->qgroup_lock);
 	while (!list_empty(&fs_info->dirty_qgroups)) {
@@ -2572,7 +2570,7 @@ qgroup_rescan_leaf(struct btrfs_fs_info *fs_info, struct btrfs_path *path,
 			num_bytes = found.offset;
 
 		ret = btrfs_find_all_roots(NULL, fs_info, found.objectid, 0,
-					   &roots);
+					   &roots, false);
 		if (ret < 0)
 			goto out;
 		/* For rescan, just pass old_roots as NULL */
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index 24a62224b24b..a7f79254ecca 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -1326,6 +1326,9 @@ write_data:
 
 cleanup:
 	rbio_orig_end_io(rbio, BLK_STS_IOERR);
+
+	while ((bio = bio_list_pop(&bio_list)))
+		bio_put(bio);
 }
 
 /*
@@ -1582,6 +1585,10 @@ static int raid56_rmw_stripe(struct btrfs_raid_bio *rbio)
 
 cleanup:
 	rbio_orig_end_io(rbio, BLK_STS_IOERR);
+
+	while ((bio = bio_list_pop(&bio_list)))
+		bio_put(bio);
+
 	return -EIO;
 
 finish:
@@ -2107,6 +2114,10 @@ cleanup:
 	if (rbio->operation == BTRFS_RBIO_READ_REBUILD ||
 	    rbio->operation == BTRFS_RBIO_REBUILD_MISSING)
 		rbio_orig_end_io(rbio, BLK_STS_IOERR);
+
+	while ((bio = bio_list_pop(&bio_list)))
+		bio_put(bio);
+
 	return -EIO;
 }
 
@@ -2231,12 +2242,18 @@ raid56_parity_alloc_scrub_rbio(struct btrfs_fs_info *fs_info, struct bio *bio,
 	ASSERT(!bio->bi_iter.bi_size);
 	rbio->operation = BTRFS_RBIO_PARITY_SCRUB;
 
-	for (i = 0; i < rbio->real_stripes; i++) {
+	/*
+	 * After mapping bbio with BTRFS_MAP_WRITE, parities have been sorted
+	 * to the end position, so this search can start from the first parity
+	 * stripe.
+	 */
+	for (i = rbio->nr_data; i < rbio->real_stripes; i++) {
 		if (bbio->stripes[i].dev == scrub_dev) {
 			rbio->scrubp = i;
 			break;
 		}
 	}
+	ASSERT(i < rbio->real_stripes);
 
 	/* Now we just support the sectorsize equals to page size */
 	ASSERT(fs_info->sectorsize == PAGE_SIZE);
@@ -2454,6 +2471,9 @@ submit_write:
 
 cleanup:
 	rbio_orig_end_io(rbio, BLK_STS_IOERR);
+
+	while ((bio = bio_list_pop(&bio_list)))
+		bio_put(bio);
 }
 
 static inline int is_data_stripe(struct btrfs_raid_bio *rbio, int stripe)
@@ -2563,12 +2583,12 @@ static void raid56_parity_scrub_stripe(struct btrfs_raid_bio *rbio)
 	int stripe;
 	struct bio *bio;
 
+	bio_list_init(&bio_list);
+
 	ret = alloc_rbio_essential_pages(rbio);
 	if (ret)
 		goto cleanup;
 
-	bio_list_init(&bio_list);
-
 	atomic_set(&rbio->error, 0);
 	/*
 	 * build a list of bios to read all the missing parts of this
@@ -2636,6 +2656,10 @@ static void raid56_parity_scrub_stripe(struct btrfs_raid_bio *rbio)
 
 cleanup:
 	rbio_orig_end_io(rbio, BLK_STS_IOERR);
+
+	while ((bio = bio_list_pop(&bio_list)))
+		bio_put(bio);
+
 	return;
 
 finish:
diff --git a/fs/btrfs/ref-verify.c b/fs/btrfs/ref-verify.c
new file mode 100644
index 000000000000..34878699d363
--- /dev/null
+++ b/fs/btrfs/ref-verify.c
@@ -0,0 +1,1031 @@
+/*
+ * Copyright (C) 2014 Facebook.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/sched.h>
+#include <linux/stacktrace.h>
+#include "ctree.h"
+#include "disk-io.h"
+#include "locking.h"
+#include "delayed-ref.h"
+#include "ref-verify.h"
+
+/*
+ * Used to keep track the roots and number of refs each root has for a given
+ * bytenr.  This just tracks the number of direct references, no shared
+ * references.
+ */
+struct root_entry {
+	u64 root_objectid;
+	u64 num_refs;
+	struct rb_node node;
+};
+
+/*
+ * These are meant to represent what should exist in the extent tree, these can
+ * be used to verify the extent tree is consistent as these should all match
+ * what the extent tree says.
+ */
+struct ref_entry {
+	u64 root_objectid;
+	u64 parent;
+	u64 owner;
+	u64 offset;
+	u64 num_refs;
+	struct rb_node node;
+};
+
+#define MAX_TRACE	16
+
+/*
+ * Whenever we add/remove a reference we record the action.  The action maps
+ * back to the delayed ref action.  We hold the ref we are changing in the
+ * action so we can account for the history properly, and we record the root we
+ * were called with since it could be different from ref_root.  We also store
+ * stack traces because thats how I roll.
+ */
+struct ref_action {
+	int action;
+	u64 root;
+	struct ref_entry ref;
+	struct list_head list;
+	unsigned long trace[MAX_TRACE];
+	unsigned int trace_len;
+};
+
+/*
+ * One of these for every block we reference, it holds the roots and references
+ * to it as well as all of the ref actions that have occured to it.  We never
+ * free it until we unmount the file system in order to make sure re-allocations
+ * are happening properly.
+ */
+struct block_entry {
+	u64 bytenr;
+	u64 len;
+	u64 num_refs;
+	int metadata;
+	int from_disk;
+	struct rb_root roots;
+	struct rb_root refs;
+	struct rb_node node;
+	struct list_head actions;
+};
+
+static struct block_entry *insert_block_entry(struct rb_root *root,
+					      struct block_entry *be)
+{
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *parent_node = NULL;
+	struct block_entry *entry;
+
+	while (*p) {
+		parent_node = *p;
+		entry = rb_entry(parent_node, struct block_entry, node);
+		if (entry->bytenr > be->bytenr)
+			p = &(*p)->rb_left;
+		else if (entry->bytenr < be->bytenr)
+			p = &(*p)->rb_right;
+		else
+			return entry;
+	}
+
+	rb_link_node(&be->node, parent_node, p);
+	rb_insert_color(&be->node, root);
+	return NULL;
+}
+
+static struct block_entry *lookup_block_entry(struct rb_root *root, u64 bytenr)
+{
+	struct rb_node *n;
+	struct block_entry *entry = NULL;
+
+	n = root->rb_node;
+	while (n) {
+		entry = rb_entry(n, struct block_entry, node);
+		if (entry->bytenr < bytenr)
+			n = n->rb_right;
+		else if (entry->bytenr > bytenr)
+			n = n->rb_left;
+		else
+			return entry;
+	}
+	return NULL;
+}
+
+static struct root_entry *insert_root_entry(struct rb_root *root,
+					    struct root_entry *re)
+{
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *parent_node = NULL;
+	struct root_entry *entry;
+
+	while (*p) {
+		parent_node = *p;
+		entry = rb_entry(parent_node, struct root_entry, node);
+		if (entry->root_objectid > re->root_objectid)
+			p = &(*p)->rb_left;
+		else if (entry->root_objectid < re->root_objectid)
+			p = &(*p)->rb_right;
+		else
+			return entry;
+	}
+
+	rb_link_node(&re->node, parent_node, p);
+	rb_insert_color(&re->node, root);
+	return NULL;
+
+}
+
+static int comp_refs(struct ref_entry *ref1, struct ref_entry *ref2)
+{
+	if (ref1->root_objectid < ref2->root_objectid)
+		return -1;
+	if (ref1->root_objectid > ref2->root_objectid)
+		return 1;
+	if (ref1->parent < ref2->parent)
+		return -1;
+	if (ref1->parent > ref2->parent)
+		return 1;
+	if (ref1->owner < ref2->owner)
+		return -1;
+	if (ref1->owner > ref2->owner)
+		return 1;
+	if (ref1->offset < ref2->offset)
+		return -1;
+	if (ref1->offset > ref2->offset)
+		return 1;
+	return 0;
+}
+
+static struct ref_entry *insert_ref_entry(struct rb_root *root,
+					  struct ref_entry *ref)
+{
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *parent_node = NULL;
+	struct ref_entry *entry;
+	int cmp;
+
+	while (*p) {
+		parent_node = *p;
+		entry = rb_entry(parent_node, struct ref_entry, node);
+		cmp = comp_refs(entry, ref);
+		if (cmp > 0)
+			p = &(*p)->rb_left;
+		else if (cmp < 0)
+			p = &(*p)->rb_right;
+		else
+			return entry;
+	}
+
+	rb_link_node(&ref->node, parent_node, p);
+	rb_insert_color(&ref->node, root);
+	return NULL;
+
+}
+
+static struct root_entry *lookup_root_entry(struct rb_root *root, u64 objectid)
+{
+	struct rb_node *n;
+	struct root_entry *entry = NULL;
+
+	n = root->rb_node;
+	while (n) {
+		entry = rb_entry(n, struct root_entry, node);
+		if (entry->root_objectid < objectid)
+			n = n->rb_right;
+		else if (entry->root_objectid > objectid)
+			n = n->rb_left;
+		else
+			return entry;
+	}
+	return NULL;
+}
+
+#ifdef CONFIG_STACKTRACE
+static void __save_stack_trace(struct ref_action *ra)
+{
+	struct stack_trace stack_trace;
+
+	stack_trace.max_entries = MAX_TRACE;
+	stack_trace.nr_entries = 0;
+	stack_trace.entries = ra->trace;
+	stack_trace.skip = 2;
+	save_stack_trace(&stack_trace);
+	ra->trace_len = stack_trace.nr_entries;
+}
+
+static void __print_stack_trace(struct btrfs_fs_info *fs_info,
+				struct ref_action *ra)
+{
+	struct stack_trace trace;
+
+	if (ra->trace_len == 0) {
+		btrfs_err(fs_info, "  ref-verify: no stacktrace");
+		return;
+	}
+	trace.nr_entries = ra->trace_len;
+	trace.entries = ra->trace;
+	print_stack_trace(&trace, 2);
+}
+#else
+static void inline __save_stack_trace(struct ref_action *ra)
+{
+}
+
+static void inline __print_stack_trace(struct btrfs_fs_info *fs_info,
+				       struct ref_action *ra)
+{
+	btrfs_err(fs_info, "  ref-verify: no stacktrace support");
+}
+#endif
+
+static void free_block_entry(struct block_entry *be)
+{
+	struct root_entry *re;
+	struct ref_entry *ref;
+	struct ref_action *ra;
+	struct rb_node *n;
+
+	while ((n = rb_first(&be->roots))) {
+		re = rb_entry(n, struct root_entry, node);
+		rb_erase(&re->node, &be->roots);
+		kfree(re);
+	}
+
+	while((n = rb_first(&be->refs))) {
+		ref = rb_entry(n, struct ref_entry, node);
+		rb_erase(&ref->node, &be->refs);
+		kfree(ref);
+	}
+
+	while (!list_empty(&be->actions)) {
+		ra = list_first_entry(&be->actions, struct ref_action,
+				      list);
+		list_del(&ra->list);
+		kfree(ra);
+	}
+	kfree(be);
+}
+
+static struct block_entry *add_block_entry(struct btrfs_fs_info *fs_info,
+					   u64 bytenr, u64 len,
+					   u64 root_objectid)
+{
+	struct block_entry *be = NULL, *exist;
+	struct root_entry *re = NULL;
+
+	re = kzalloc(sizeof(struct root_entry), GFP_KERNEL);
+	be = kzalloc(sizeof(struct block_entry), GFP_KERNEL);
+	if (!be || !re) {
+		kfree(re);
+		kfree(be);
+		return ERR_PTR(-ENOMEM);
+	}
+	be->bytenr = bytenr;
+	be->len = len;
+
+	re->root_objectid = root_objectid;
+	re->num_refs = 0;
+
+	spin_lock(&fs_info->ref_verify_lock);
+	exist = insert_block_entry(&fs_info->block_tree, be);
+	if (exist) {
+		if (root_objectid) {
+			struct root_entry *exist_re;
+
+			exist_re = insert_root_entry(&exist->roots, re);
+			if (exist_re)
+				kfree(re);
+		}
+		kfree(be);
+		return exist;
+	}
+
+	be->num_refs = 0;
+	be->metadata = 0;
+	be->from_disk = 0;
+	be->roots = RB_ROOT;
+	be->refs = RB_ROOT;
+	INIT_LIST_HEAD(&be->actions);
+	if (root_objectid)
+		insert_root_entry(&be->roots, re);
+	else
+		kfree(re);
+	return be;
+}
+
+static int add_tree_block(struct btrfs_fs_info *fs_info, u64 ref_root,
+			  u64 parent, u64 bytenr, int level)
+{
+	struct block_entry *be;
+	struct root_entry *re;
+	struct ref_entry *ref = NULL, *exist;
+
+	ref = kmalloc(sizeof(struct ref_entry), GFP_KERNEL);
+	if (!ref)
+		return -ENOMEM;
+
+	if (parent)
+		ref->root_objectid = 0;
+	else
+		ref->root_objectid = ref_root;
+	ref->parent = parent;
+	ref->owner = level;
+	ref->offset = 0;
+	ref->num_refs = 1;
+
+	be = add_block_entry(fs_info, bytenr, fs_info->nodesize, ref_root);
+	if (IS_ERR(be)) {
+		kfree(ref);
+		return PTR_ERR(be);
+	}
+	be->num_refs++;
+	be->from_disk = 1;
+	be->metadata = 1;
+
+	if (!parent) {
+		ASSERT(ref_root);
+		re = lookup_root_entry(&be->roots, ref_root);
+		ASSERT(re);
+		re->num_refs++;
+	}
+	exist = insert_ref_entry(&be->refs, ref);
+	if (exist) {
+		exist->num_refs++;
+		kfree(ref);
+	}
+	spin_unlock(&fs_info->ref_verify_lock);
+
+	return 0;
+}
+
+static int add_shared_data_ref(struct btrfs_fs_info *fs_info,
+			       u64 parent, u32 num_refs, u64 bytenr,
+			       u64 num_bytes)
+{
+	struct block_entry *be;
+	struct ref_entry *ref;
+
+	ref = kzalloc(sizeof(struct ref_entry), GFP_KERNEL);
+	if (!ref)
+		return -ENOMEM;
+	be = add_block_entry(fs_info, bytenr, num_bytes, 0);
+	if (IS_ERR(be)) {
+		kfree(ref);
+		return PTR_ERR(be);
+	}
+	be->num_refs += num_refs;
+
+	ref->parent = parent;
+	ref->num_refs = num_refs;
+	if (insert_ref_entry(&be->refs, ref)) {
+		spin_unlock(&fs_info->ref_verify_lock);
+		btrfs_err(fs_info, "existing shared ref when reading from disk?");
+		kfree(ref);
+		return -EINVAL;
+	}
+	spin_unlock(&fs_info->ref_verify_lock);
+	return 0;
+}
+
+static int add_extent_data_ref(struct btrfs_fs_info *fs_info,
+			       struct extent_buffer *leaf,
+			       struct btrfs_extent_data_ref *dref,
+			       u64 bytenr, u64 num_bytes)
+{
+	struct block_entry *be;
+	struct ref_entry *ref;
+	struct root_entry *re;
+	u64 ref_root = btrfs_extent_data_ref_root(leaf, dref);
+	u64 owner = btrfs_extent_data_ref_objectid(leaf, dref);
+	u64 offset = btrfs_extent_data_ref_offset(leaf, dref);
+	u32 num_refs = btrfs_extent_data_ref_count(leaf, dref);
+
+	ref = kzalloc(sizeof(struct ref_entry), GFP_KERNEL);
+	if (!ref)
+		return -ENOMEM;
+	be = add_block_entry(fs_info, bytenr, num_bytes, ref_root);
+	if (IS_ERR(be)) {
+		kfree(ref);
+		return PTR_ERR(be);
+	}
+	be->num_refs += num_refs;
+
+	ref->parent = 0;
+	ref->owner = owner;
+	ref->root_objectid = ref_root;
+	ref->offset = offset;
+	ref->num_refs = num_refs;
+	if (insert_ref_entry(&be->refs, ref)) {
+		spin_unlock(&fs_info->ref_verify_lock);
+		btrfs_err(fs_info, "existing ref when reading from disk?");
+		kfree(ref);
+		return -EINVAL;
+	}
+
+	re = lookup_root_entry(&be->roots, ref_root);
+	if (!re) {
+		spin_unlock(&fs_info->ref_verify_lock);
+		btrfs_err(fs_info, "missing root in new block entry?");
+		return -EINVAL;
+	}
+	re->num_refs += num_refs;
+	spin_unlock(&fs_info->ref_verify_lock);
+	return 0;
+}
+
+static int process_extent_item(struct btrfs_fs_info *fs_info,
+			       struct btrfs_path *path, struct btrfs_key *key,
+			       int slot, int *tree_block_level)
+{
+	struct btrfs_extent_item *ei;
+	struct btrfs_extent_inline_ref *iref;
+	struct btrfs_extent_data_ref *dref;
+	struct btrfs_shared_data_ref *sref;
+	struct extent_buffer *leaf = path->nodes[0];
+	u32 item_size = btrfs_item_size_nr(leaf, slot);
+	unsigned long end, ptr;
+	u64 offset, flags, count;
+	int type, ret;
+
+	ei = btrfs_item_ptr(leaf, slot, struct btrfs_extent_item);
+	flags = btrfs_extent_flags(leaf, ei);
+
+	if ((key->type == BTRFS_EXTENT_ITEM_KEY) &&
+	    flags & BTRFS_EXTENT_FLAG_TREE_BLOCK) {
+		struct btrfs_tree_block_info *info;
+
+		info = (struct btrfs_tree_block_info *)(ei + 1);
+		*tree_block_level = btrfs_tree_block_level(leaf, info);
+		iref = (struct btrfs_extent_inline_ref *)(info + 1);
+	} else {
+		if (key->type == BTRFS_METADATA_ITEM_KEY)
+			*tree_block_level = key->offset;
+		iref = (struct btrfs_extent_inline_ref *)(ei + 1);
+	}
+
+	ptr = (unsigned long)iref;
+	end = (unsigned long)ei + item_size;
+	while (ptr < end) {
+		iref = (struct btrfs_extent_inline_ref *)ptr;
+		type = btrfs_extent_inline_ref_type(leaf, iref);
+		offset = btrfs_extent_inline_ref_offset(leaf, iref);
+		switch (type) {
+		case BTRFS_TREE_BLOCK_REF_KEY:
+			ret = add_tree_block(fs_info, offset, 0, key->objectid,
+					     *tree_block_level);
+			break;
+		case BTRFS_SHARED_BLOCK_REF_KEY:
+			ret = add_tree_block(fs_info, 0, offset, key->objectid,
+					     *tree_block_level);
+			break;
+		case BTRFS_EXTENT_DATA_REF_KEY:
+			dref = (struct btrfs_extent_data_ref *)(&iref->offset);
+			ret = add_extent_data_ref(fs_info, leaf, dref,
+						  key->objectid, key->offset);
+			break;
+		case BTRFS_SHARED_DATA_REF_KEY:
+			sref = (struct btrfs_shared_data_ref *)(iref + 1);
+			count = btrfs_shared_data_ref_count(leaf, sref);
+			ret = add_shared_data_ref(fs_info, offset, count,
+						  key->objectid, key->offset);
+			break;
+		default:
+			btrfs_err(fs_info, "invalid key type in iref");
+			ret = -EINVAL;
+			break;
+		}
+		if (ret)
+			break;
+		ptr += btrfs_extent_inline_ref_size(type);
+	}
+	return ret;
+}
+
+static int process_leaf(struct btrfs_root *root,
+			struct btrfs_path *path, u64 *bytenr, u64 *num_bytes)
+{
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct extent_buffer *leaf = path->nodes[0];
+	struct btrfs_extent_data_ref *dref;
+	struct btrfs_shared_data_ref *sref;
+	u32 count;
+	int i = 0, tree_block_level = 0, ret;
+	struct btrfs_key key;
+	int nritems = btrfs_header_nritems(leaf);
+
+	for (i = 0; i < nritems; i++) {
+		btrfs_item_key_to_cpu(leaf, &key, i);
+		switch (key.type) {
+		case BTRFS_EXTENT_ITEM_KEY:
+			*num_bytes = key.offset;
+		case BTRFS_METADATA_ITEM_KEY:
+			*bytenr = key.objectid;
+			ret = process_extent_item(fs_info, path, &key, i,
+						  &tree_block_level);
+			break;
+		case BTRFS_TREE_BLOCK_REF_KEY:
+			ret = add_tree_block(fs_info, key.offset, 0,
+					     key.objectid, tree_block_level);
+			break;
+		case BTRFS_SHARED_BLOCK_REF_KEY:
+			ret = add_tree_block(fs_info, 0, key.offset,
+					     key.objectid, tree_block_level);
+			break;
+		case BTRFS_EXTENT_DATA_REF_KEY:
+			dref = btrfs_item_ptr(leaf, i,
+					      struct btrfs_extent_data_ref);
+			ret = add_extent_data_ref(fs_info, leaf, dref, *bytenr,
+						  *num_bytes);
+			break;
+		case BTRFS_SHARED_DATA_REF_KEY:
+			sref = btrfs_item_ptr(leaf, i,
+					      struct btrfs_shared_data_ref);
+			count = btrfs_shared_data_ref_count(leaf, sref);
+			ret = add_shared_data_ref(fs_info, key.offset, count,
+						  *bytenr, *num_bytes);
+			break;
+		default:
+			break;
+		}
+		if (ret)
+			break;
+	}
+	return ret;
+}
+
+/* Walk down to the leaf from the given level */
+static int walk_down_tree(struct btrfs_root *root, struct btrfs_path *path,
+			  int level, u64 *bytenr, u64 *num_bytes)
+{
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct extent_buffer *eb;
+	u64 block_bytenr, gen;
+	int ret = 0;
+
+	while (level >= 0) {
+		if (level) {
+			block_bytenr = btrfs_node_blockptr(path->nodes[level],
+							   path->slots[level]);
+			gen = btrfs_node_ptr_generation(path->nodes[level],
+							path->slots[level]);
+			eb = read_tree_block(fs_info, block_bytenr, gen);
+			if (IS_ERR(eb))
+				return PTR_ERR(eb);
+			if (!extent_buffer_uptodate(eb)) {
+				free_extent_buffer(eb);
+				return -EIO;
+			}
+			btrfs_tree_read_lock(eb);
+			btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+			path->nodes[level-1] = eb;
+			path->slots[level-1] = 0;
+			path->locks[level-1] = BTRFS_READ_LOCK_BLOCKING;
+		} else {
+			ret = process_leaf(root, path, bytenr, num_bytes);
+			if (ret)
+				break;
+		}
+		level--;
+	}
+	return ret;
+}
+
+/* Walk up to the next node that needs to be processed */
+static int walk_up_tree(struct btrfs_root *root, struct btrfs_path *path,
+			int *level)
+{
+	int l;
+
+	for (l = 0; l < BTRFS_MAX_LEVEL; l++) {
+		if (!path->nodes[l])
+			continue;
+		if (l) {
+			path->slots[l]++;
+			if (path->slots[l] <
+			    btrfs_header_nritems(path->nodes[l])) {
+				*level = l;
+				return 0;
+			}
+		}
+		btrfs_tree_unlock_rw(path->nodes[l], path->locks[l]);
+		free_extent_buffer(path->nodes[l]);
+		path->nodes[l] = NULL;
+		path->slots[l] = 0;
+		path->locks[l] = 0;
+	}
+
+	return 1;
+}
+
+static void dump_ref_action(struct btrfs_fs_info *fs_info,
+			    struct ref_action *ra)
+{
+	btrfs_err(fs_info,
+"  Ref action %d, root %llu, ref_root %llu, parent %llu, owner %llu, offset %llu, num_refs %llu",
+		  ra->action, ra->root, ra->ref.root_objectid, ra->ref.parent,
+		  ra->ref.owner, ra->ref.offset, ra->ref.num_refs);
+	__print_stack_trace(fs_info, ra);
+}
+
+/*
+ * Dumps all the information from the block entry to printk, it's going to be
+ * awesome.
+ */
+static void dump_block_entry(struct btrfs_fs_info *fs_info,
+			     struct block_entry *be)
+{
+	struct ref_entry *ref;
+	struct root_entry *re;
+	struct ref_action *ra;
+	struct rb_node *n;
+
+	btrfs_err(fs_info,
+"dumping block entry [%llu %llu], num_refs %llu, metadata %d, from disk %d",
+		  be->bytenr, be->len, be->num_refs, be->metadata,
+		  be->from_disk);
+
+	for (n = rb_first(&be->refs); n; n = rb_next(n)) {
+		ref = rb_entry(n, struct ref_entry, node);
+		btrfs_err(fs_info,
+"  ref root %llu, parent %llu, owner %llu, offset %llu, num_refs %llu",
+			  ref->root_objectid, ref->parent, ref->owner,
+			  ref->offset, ref->num_refs);
+	}
+
+	for (n = rb_first(&be->roots); n; n = rb_next(n)) {
+		re = rb_entry(n, struct root_entry, node);
+		btrfs_err(fs_info, "  root entry %llu, num_refs %llu",
+			  re->root_objectid, re->num_refs);
+	}
+
+	list_for_each_entry(ra, &be->actions, list)
+		dump_ref_action(fs_info, ra);
+}
+
+/*
+ * btrfs_ref_tree_mod: called when we modify a ref for a bytenr
+ * @root: the root we are making this modification from.
+ * @bytenr: the bytenr we are modifying.
+ * @num_bytes: number of bytes.
+ * @parent: the parent bytenr.
+ * @ref_root: the original root owner of the bytenr.
+ * @owner: level in the case of metadata, inode in the case of data.
+ * @offset: 0 for metadata, file offset for data.
+ * @action: the action that we are doing, this is the same as the delayed ref
+ *	action.
+ *
+ * This will add an action item to the given bytenr and do sanity checks to make
+ * sure we haven't messed something up.  If we are making a new allocation and
+ * this block entry has history we will delete all previous actions as long as
+ * our sanity checks pass as they are no longer needed.
+ */
+int btrfs_ref_tree_mod(struct btrfs_root *root, u64 bytenr, u64 num_bytes,
+		       u64 parent, u64 ref_root, u64 owner, u64 offset,
+		       int action)
+{
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct ref_entry *ref = NULL, *exist;
+	struct ref_action *ra = NULL;
+	struct block_entry *be = NULL;
+	struct root_entry *re = NULL;
+	int ret = 0;
+	bool metadata = owner < BTRFS_FIRST_FREE_OBJECTID;
+
+	if (!btrfs_test_opt(root->fs_info, REF_VERIFY))
+		return 0;
+
+	ref = kzalloc(sizeof(struct ref_entry), GFP_NOFS);
+	ra = kmalloc(sizeof(struct ref_action), GFP_NOFS);
+	if (!ra || !ref) {
+		kfree(ref);
+		kfree(ra);
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	if (parent) {
+		ref->parent = parent;
+	} else {
+		ref->root_objectid = ref_root;
+		ref->owner = owner;
+		ref->offset = offset;
+	}
+	ref->num_refs = (action == BTRFS_DROP_DELAYED_REF) ? -1 : 1;
+
+	memcpy(&ra->ref, ref, sizeof(struct ref_entry));
+	/*
+	 * Save the extra info from the delayed ref in the ref action to make it
+	 * easier to figure out what is happening.  The real ref's we add to the
+	 * ref tree need to reflect what we save on disk so it matches any
+	 * on-disk refs we pre-loaded.
+	 */
+	ra->ref.owner = owner;
+	ra->ref.offset = offset;
+	ra->ref.root_objectid = ref_root;
+	__save_stack_trace(ra);
+
+	INIT_LIST_HEAD(&ra->list);
+	ra->action = action;
+	ra->root = root->objectid;
+
+	/*
+	 * This is an allocation, preallocate the block_entry in case we haven't
+	 * used it before.
+	 */
+	ret = -EINVAL;
+	if (action == BTRFS_ADD_DELAYED_EXTENT) {
+		/*
+		 * For subvol_create we'll just pass in whatever the parent root
+		 * is and the new root objectid, so let's not treat the passed
+		 * in root as if it really has a ref for this bytenr.
+		 */
+		be = add_block_entry(root->fs_info, bytenr, num_bytes, ref_root);
+		if (IS_ERR(be)) {
+			kfree(ra);
+			ret = PTR_ERR(be);
+			goto out;
+		}
+		be->num_refs++;
+		if (metadata)
+			be->metadata = 1;
+
+		if (be->num_refs != 1) {
+			btrfs_err(fs_info,
+			"re-allocated a block that still has references to it!");
+			dump_block_entry(fs_info, be);
+			dump_ref_action(fs_info, ra);
+			goto out_unlock;
+		}
+
+		while (!list_empty(&be->actions)) {
+			struct ref_action *tmp;
+
+			tmp = list_first_entry(&be->actions, struct ref_action,
+					       list);
+			list_del(&tmp->list);
+			kfree(tmp);
+		}
+	} else {
+		struct root_entry *tmp;
+
+		if (!parent) {
+			re = kmalloc(sizeof(struct root_entry), GFP_NOFS);
+			if (!re) {
+				kfree(ref);
+				kfree(ra);
+				ret = -ENOMEM;
+				goto out;
+			}
+			/*
+			 * This is the root that is modifying us, so it's the
+			 * one we want to lookup below when we modify the
+			 * re->num_refs.
+			 */
+			ref_root = root->objectid;
+			re->root_objectid = root->objectid;
+			re->num_refs = 0;
+		}
+
+		spin_lock(&root->fs_info->ref_verify_lock);
+		be = lookup_block_entry(&root->fs_info->block_tree, bytenr);
+		if (!be) {
+			btrfs_err(fs_info,
+"trying to do action %d to bytenr %llu num_bytes %llu but there is no existing entry!",
+				  action, (unsigned long long)bytenr,
+				  (unsigned long long)num_bytes);
+			dump_ref_action(fs_info, ra);
+			kfree(ref);
+			kfree(ra);
+			goto out_unlock;
+		}
+
+		if (!parent) {
+			tmp = insert_root_entry(&be->roots, re);
+			if (tmp) {
+				kfree(re);
+				re = tmp;
+			}
+		}
+	}
+
+	exist = insert_ref_entry(&be->refs, ref);
+	if (exist) {
+		if (action == BTRFS_DROP_DELAYED_REF) {
+			if (exist->num_refs == 0) {
+				btrfs_err(fs_info,
+"dropping a ref for a existing root that doesn't have a ref on the block");
+				dump_block_entry(fs_info, be);
+				dump_ref_action(fs_info, ra);
+				kfree(ra);
+				goto out_unlock;
+			}
+			exist->num_refs--;
+			if (exist->num_refs == 0) {
+				rb_erase(&exist->node, &be->refs);
+				kfree(exist);
+			}
+		} else if (!be->metadata) {
+			exist->num_refs++;
+		} else {
+			btrfs_err(fs_info,
+"attempting to add another ref for an existing ref on a tree block");
+			dump_block_entry(fs_info, be);
+			dump_ref_action(fs_info, ra);
+			kfree(ra);
+			goto out_unlock;
+		}
+		kfree(ref);
+	} else {
+		if (action == BTRFS_DROP_DELAYED_REF) {
+			btrfs_err(fs_info,
+"dropping a ref for a root that doesn't have a ref on the block");
+			dump_block_entry(fs_info, be);
+			dump_ref_action(fs_info, ra);
+			kfree(ra);
+			goto out_unlock;
+		}
+	}
+
+	if (!parent && !re) {
+		re = lookup_root_entry(&be->roots, ref_root);
+		if (!re) {
+			/*
+			 * This shouldn't happen because we will add our re
+			 * above when we lookup the be with !parent, but just in
+			 * case catch this case so we don't panic because I
+			 * didn't thik of some other corner case.
+			 */
+			btrfs_err(fs_info, "failed to find root %llu for %llu",
+				  root->objectid, be->bytenr);
+			dump_block_entry(fs_info, be);
+			dump_ref_action(fs_info, ra);
+			kfree(ra);
+			goto out_unlock;
+		}
+	}
+	if (action == BTRFS_DROP_DELAYED_REF) {
+		if (re)
+			re->num_refs--;
+		be->num_refs--;
+	} else if (action == BTRFS_ADD_DELAYED_REF) {
+		be->num_refs++;
+		if (re)
+			re->num_refs++;
+	}
+	list_add_tail(&ra->list, &be->actions);
+	ret = 0;
+out_unlock:
+	spin_unlock(&root->fs_info->ref_verify_lock);
+out:
+	if (ret)
+		btrfs_clear_opt(fs_info->mount_opt, REF_VERIFY);
+	return ret;
+}
+
+/* Free up the ref cache */
+void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info)
+{
+	struct block_entry *be;
+	struct rb_node *n;
+
+	if (!btrfs_test_opt(fs_info, REF_VERIFY))
+		return;
+
+	spin_lock(&fs_info->ref_verify_lock);
+	while ((n = rb_first(&fs_info->block_tree))) {
+		be = rb_entry(n, struct block_entry, node);
+		rb_erase(&be->node, &fs_info->block_tree);
+		free_block_entry(be);
+		cond_resched_lock(&fs_info->ref_verify_lock);
+	}
+	spin_unlock(&fs_info->ref_verify_lock);
+}
+
+void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info, u64 start,
+			       u64 len)
+{
+	struct block_entry *be = NULL, *entry;
+	struct rb_node *n;
+
+	if (!btrfs_test_opt(fs_info, REF_VERIFY))
+		return;
+
+	spin_lock(&fs_info->ref_verify_lock);
+	n = fs_info->block_tree.rb_node;
+	while (n) {
+		entry = rb_entry(n, struct block_entry, node);
+		if (entry->bytenr < start) {
+			n = n->rb_right;
+		} else if (entry->bytenr > start) {
+			n = n->rb_left;
+		} else {
+			be = entry;
+			break;
+		}
+		/* We want to get as close to start as possible */
+		if (be == NULL ||
+		    (entry->bytenr < start && be->bytenr > start) ||
+		    (entry->bytenr < start && entry->bytenr > be->bytenr))
+			be = entry;
+	}
+
+	/*
+	 * Could have an empty block group, maybe have something to check for
+	 * this case to verify we were actually empty?
+	 */
+	if (!be) {
+		spin_unlock(&fs_info->ref_verify_lock);
+		return;
+	}
+
+	n = &be->node;
+	while (n) {
+		be = rb_entry(n, struct block_entry, node);
+		n = rb_next(n);
+		if (be->bytenr < start && be->bytenr + be->len > start) {
+			btrfs_err(fs_info,
+				"block entry overlaps a block group [%llu,%llu]!",
+				start, len);
+			dump_block_entry(fs_info, be);
+			continue;
+		}
+		if (be->bytenr < start)
+			continue;
+		if (be->bytenr >= start + len)
+			break;
+		if (be->bytenr + be->len > start + len) {
+			btrfs_err(fs_info,
+				"block entry overlaps a block group [%llu,%llu]!",
+				start, len);
+			dump_block_entry(fs_info, be);
+		}
+		rb_erase(&be->node, &fs_info->block_tree);
+		free_block_entry(be);
+	}
+	spin_unlock(&fs_info->ref_verify_lock);
+}
+
+/* Walk down all roots and build the ref tree, meant to be called at mount */
+int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info)
+{
+	struct btrfs_path *path;
+	struct btrfs_root *root;
+	struct extent_buffer *eb;
+	u64 bytenr = 0, num_bytes = 0;
+	int ret, level;
+
+	if (!btrfs_test_opt(fs_info, REF_VERIFY))
+		return 0;
+
+	path = btrfs_alloc_path();
+	if (!path)
+		return -ENOMEM;
+
+	eb = btrfs_read_lock_root_node(fs_info->extent_root);
+	btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
+	level = btrfs_header_level(eb);
+	path->nodes[level] = eb;
+	path->slots[level] = 0;
+	path->locks[level] = BTRFS_READ_LOCK_BLOCKING;
+
+	while (1) {
+		/*
+		 * We have to keep track of the bytenr/num_bytes we last hit
+		 * because we could have run out of space for an inline ref, and
+		 * would have had to added a ref key item which may appear on a
+		 * different leaf from the original extent item.
+		 */
+		ret = walk_down_tree(fs_info->extent_root, path, level,
+				     &bytenr, &num_bytes);
+		if (ret)
+			break;
+		ret = walk_up_tree(root, path, &level);
+		if (ret < 0)
+			break;
+		if (ret > 0) {
+			ret = 0;
+			break;
+		}
+	}
+	if (ret) {
+		btrfs_clear_opt(fs_info->mount_opt, REF_VERIFY);
+		btrfs_free_ref_cache(fs_info);
+	}
+	btrfs_free_path(path);
+	return ret;
+}
diff --git a/fs/btrfs/ref-verify.h b/fs/btrfs/ref-verify.h
new file mode 100644
index 000000000000..3bf02ce0e1e2
--- /dev/null
+++ b/fs/btrfs/ref-verify.h
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2014 Facebook.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+#ifndef __REF_VERIFY__
+#define __REF_VERIFY__
+
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info);
+void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info);
+int btrfs_ref_tree_mod(struct btrfs_root *root, u64 bytenr, u64 num_bytes,
+		       u64 parent, u64 ref_root, u64 owner, u64 offset,
+		       int action);
+void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info, u64 start,
+			       u64 len);
+
+static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
+{
+	spin_lock_init(&fs_info->ref_verify_lock);
+	fs_info->block_tree = RB_ROOT;
+}
+#else
+static inline int btrfs_build_ref_tree(struct btrfs_fs_info *fs_info)
+{
+	return 0;
+}
+
+static inline void btrfs_free_ref_cache(struct btrfs_fs_info *fs_info)
+{
+}
+
+static inline int btrfs_ref_tree_mod(struct btrfs_root *root, u64 bytenr,
+				     u64 num_bytes, u64 parent, u64 ref_root,
+				     u64 owner, u64 offset, int action)
+{
+	return 0;
+}
+
+static inline void btrfs_free_ref_tree_range(struct btrfs_fs_info *fs_info,
+					     u64 start, u64 len)
+{
+}
+
+static inline void btrfs_init_ref_verify(struct btrfs_fs_info *fs_info)
+{
+}
+
+#endif /* CONFIG_BTRFS_FS_REF_VERIFY */
+#endif /* _REF_VERIFY__ */
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 3a49a3c2fca4..4cf2eb67eba6 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1742,7 +1742,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
 		dirty = 1;
 
 		key.offset -= btrfs_file_extent_offset(leaf, fi);
-		ret = btrfs_inc_extent_ref(trans, fs_info, new_bytenr,
+		ret = btrfs_inc_extent_ref(trans, root, new_bytenr,
 					   num_bytes, parent,
 					   btrfs_header_owner(leaf),
 					   key.objectid, key.offset);
@@ -1751,7 +1751,7 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
 			break;
 		}
 
-		ret = btrfs_free_extent(trans, fs_info, bytenr, num_bytes,
+		ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
 					parent, btrfs_header_owner(leaf),
 					key.objectid, key.offset);
 		if (ret) {
@@ -1952,21 +1952,21 @@ again:
 					      path->slots[level], old_ptr_gen);
 		btrfs_mark_buffer_dirty(path->nodes[level]);
 
-		ret = btrfs_inc_extent_ref(trans, fs_info, old_bytenr,
+		ret = btrfs_inc_extent_ref(trans, src, old_bytenr,
 					blocksize, path->nodes[level]->start,
 					src->root_key.objectid, level - 1, 0);
 		BUG_ON(ret);
-		ret = btrfs_inc_extent_ref(trans, fs_info, new_bytenr,
+		ret = btrfs_inc_extent_ref(trans, dest, new_bytenr,
 					blocksize, 0, dest->root_key.objectid,
 					level - 1, 0);
 		BUG_ON(ret);
 
-		ret = btrfs_free_extent(trans, fs_info, new_bytenr, blocksize,
+		ret = btrfs_free_extent(trans, src, new_bytenr, blocksize,
 					path->nodes[level]->start,
 					src->root_key.objectid, level - 1, 0);
 		BUG_ON(ret);
 
-		ret = btrfs_free_extent(trans, fs_info, old_bytenr, blocksize,
+		ret = btrfs_free_extent(trans, dest, old_bytenr, blocksize,
 					0, dest->root_key.objectid, level - 1,
 					0);
 		BUG_ON(ret);
@@ -2400,11 +2400,11 @@ void free_reloc_roots(struct list_head *list)
 	while (!list_empty(list)) {
 		reloc_root = list_entry(list->next, struct btrfs_root,
 					root_list);
+		__del_reloc_root(reloc_root);
 		free_extent_buffer(reloc_root->node);
 		free_extent_buffer(reloc_root->commit_root);
 		reloc_root->node = NULL;
 		reloc_root->commit_root = NULL;
-		__del_reloc_root(reloc_root);
 	}
 }
 
@@ -2808,7 +2808,7 @@ static int do_relocation(struct btrfs_trans_handle *trans,
 						      trans->transid);
 			btrfs_mark_buffer_dirty(upper->eb);
 
-			ret = btrfs_inc_extent_ref(trans, root->fs_info,
+			ret = btrfs_inc_extent_ref(trans, root,
 						node->eb->start, blocksize,
 						upper->eb->start,
 						btrfs_header_owner(upper->eb),
@@ -3246,6 +3246,8 @@ static int relocate_file_extent_cluster(struct inode *inode,
 				put_page(page);
 				btrfs_delalloc_release_metadata(BTRFS_I(inode),
 							PAGE_SIZE);
+				btrfs_delalloc_release_extents(BTRFS_I(inode),
+							       PAGE_SIZE);
 				ret = -EIO;
 				goto out;
 			}
@@ -3275,6 +3277,7 @@ static int relocate_file_extent_cluster(struct inode *inode,
 		put_page(page);
 
 		index++;
+		btrfs_delalloc_release_extents(BTRFS_I(inode), PAGE_SIZE);
 		balance_dirty_pages_ratelimited(inode->i_mapping);
 		btrfs_throttle(fs_info);
 	}
diff --git a/fs/btrfs/root-tree.c b/fs/btrfs/root-tree.c
index 9fb9896610e0..3338407ef0f0 100644
--- a/fs/btrfs/root-tree.c
+++ b/fs/btrfs/root-tree.c
@@ -226,10 +226,6 @@ int btrfs_find_orphan_roots(struct btrfs_fs_info *fs_info)
 	struct btrfs_root *root;
 	int err = 0;
 	int ret;
-	bool can_recover = true;
-
-	if (fs_info->sb->s_flags & MS_RDONLY)
-		can_recover = false;
 
 	path = btrfs_alloc_path();
 	if (!path)
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index e3f6c49e5c4d..b2f871d80982 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -231,7 +231,7 @@ struct scrub_warning {
 	struct btrfs_path	*path;
 	u64			extent_item_size;
 	const char		*errstr;
-	sector_t		sector;
+	u64			physical;
 	u64			logical;
 	struct btrfs_device	*dev;
 };
@@ -797,10 +797,10 @@ static int scrub_print_warning_inode(u64 inum, u64 offset, u64 root,
 	 */
 	for (i = 0; i < ipath->fspath->elem_cnt; ++i)
 		btrfs_warn_in_rcu(fs_info,
-				  "%s at logical %llu on dev %s, sector %llu, root %llu, inode %llu, offset %llu, length %llu, links %u (path: %s)",
+"%s at logical %llu on dev %s, physical %llu, root %llu, inode %llu, offset %llu, length %llu, links %u (path: %s)",
 				  swarn->errstr, swarn->logical,
 				  rcu_str_deref(swarn->dev->name),
-				  (unsigned long long)swarn->sector,
+				  swarn->physical,
 				  root, inum, offset,
 				  min(isize - offset, (u64)PAGE_SIZE), nlink,
 				  (char *)(unsigned long)ipath->fspath->val[i]);
@@ -810,10 +810,10 @@ static int scrub_print_warning_inode(u64 inum, u64 offset, u64 root,
 
 err:
 	btrfs_warn_in_rcu(fs_info,
-			  "%s at logical %llu on dev %s, sector %llu, root %llu, inode %llu, offset %llu: path resolving failed with ret=%d",
+			  "%s at logical %llu on dev %s, physical %llu, root %llu, inode %llu, offset %llu: path resolving failed with ret=%d",
 			  swarn->errstr, swarn->logical,
 			  rcu_str_deref(swarn->dev->name),
-			  (unsigned long long)swarn->sector,
+			  swarn->physical,
 			  root, inum, offset, ret);
 
 	free_ipath(ipath);
@@ -845,7 +845,7 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
 	if (!path)
 		return;
 
-	swarn.sector = (sblock->pagev[0]->physical) >> 9;
+	swarn.physical = sblock->pagev[0]->physical;
 	swarn.logical = sblock->pagev[0]->logical;
 	swarn.errstr = errstr;
 	swarn.dev = NULL;
@@ -868,10 +868,10 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
 						      item_size, &ref_root,
 						      &ref_level);
 			btrfs_warn_in_rcu(fs_info,
-				"%s at logical %llu on dev %s, sector %llu: metadata %s (level %d) in tree %llu",
+"%s at logical %llu on dev %s, physical %llu: metadata %s (level %d) in tree %llu",
 				errstr, swarn.logical,
 				rcu_str_deref(dev->name),
-				(unsigned long long)swarn.sector,
+				swarn.physical,
 				ref_level ? "node" : "leaf",
 				ret < 0 ? -1 : ref_level,
 				ret < 0 ? -1 : ref_root);
@@ -883,7 +883,7 @@ static void scrub_print_warning(const char *errstr, struct scrub_block *sblock)
 		swarn.dev = dev;
 		iterate_extent_inodes(fs_info, found_key.objectid,
 					extent_item_pos, 1,
-					scrub_print_warning_inode, &swarn);
+					scrub_print_warning_inode, &swarn, false);
 	}
 
 out:
@@ -1047,7 +1047,7 @@ static void scrub_fixup_nodatasum(struct btrfs_work *work)
 	 * can be found.
 	 */
 	ret = iterate_inodes_from_logical(fixup->logical, fs_info, path,
-					  scrub_fixup_readpage, fixup);
+					  scrub_fixup_readpage, fixup, false);
 	if (ret < 0) {
 		uncorrectable = 1;
 		goto out;
@@ -4390,7 +4390,7 @@ static void copy_nocow_pages_worker(struct btrfs_work *work)
 	}
 
 	ret = iterate_inodes_from_logical(logical, fs_info, path,
-					  record_inode_for_nocow, nocow_ctx);
+			record_inode_for_nocow, nocow_ctx, false);
 	if (ret != 0 && ret != -ENOENT) {
 		btrfs_warn(fs_info,
 			   "iterate_inodes_from_logical() failed: log %llu, phys %llu, len %llu, mir %u, ret %d",
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 8f1d3d6e7087..c10e4c70f02d 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -26,6 +26,7 @@
 #include <linux/radix-tree.h>
 #include <linux/vmalloc.h>
 #include <linux/string.h>
+#include <linux/compat.h>
 
 #include "send.h"
 #include "backref.h"
@@ -539,33 +540,23 @@ static struct btrfs_path *alloc_path_for_send(void)
 static int write_buf(struct file *filp, const void *buf, u32 len, loff_t *off)
 {
 	int ret;
-	mm_segment_t old_fs;
 	u32 pos = 0;
 
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-
 	while (pos < len) {
-		ret = vfs_write(filp, (__force const char __user *)buf + pos,
-				len - pos, off);
+		ret = kernel_write(filp, buf + pos, len - pos, off);
 		/* TODO handle that correctly */
 		/*if (ret == -ERESTARTSYS) {
 			continue;
 		}*/
 		if (ret < 0)
-			goto out;
+			return ret;
 		if (ret == 0) {
-			ret = -EIO;
-			goto out;
+			return -EIO;
 		}
 		pos += ret;
 	}
 
-	ret = 0;
-
-out:
-	set_fs(old_fs);
-	return ret;
+	return 0;
 }
 
 static int tlv_put(struct send_ctx *sctx, u16 attr, const void *data, int len)
@@ -1002,7 +993,6 @@ typedef int (*iterate_dir_item_t)(int num, struct btrfs_key *di_key,
  * path must point to the dir item when called.
  */
 static int iterate_dir_item(struct btrfs_root *root, struct btrfs_path *path,
-			    struct btrfs_key *found_key,
 			    iterate_dir_item_t iterate, void *ctx)
 {
 	int ret = 0;
@@ -1281,12 +1271,6 @@ static int __iterate_backrefs(u64 ino, u64 offset, u64 root, void *ctx_)
 		 */
 		if (ino >= bctx->cur_objectid)
 			return 0;
-#if 0
-		if (ino > bctx->cur_objectid)
-			return 0;
-		if (offset + bctx->extent_len > bctx->cur_offset)
-			return 0;
-#endif
 	}
 
 	bctx->found++;
@@ -1439,7 +1423,7 @@ static int find_extent_clone(struct send_ctx *sctx,
 		extent_item_pos = 0;
 	ret = iterate_extent_inodes(fs_info, found_key.objectid,
 				    extent_item_pos, 1, __iterate_backrefs,
-				    backref_ctx);
+				    backref_ctx, false);
 
 	if (ret < 0)
 		goto out;
@@ -2640,7 +2624,7 @@ static int send_create_inode(struct send_ctx *sctx, u64 ino)
 	} else {
 		btrfs_warn(sctx->send_root->fs_info, "unexpected inode type %o",
 				(int)(mode & S_IFMT));
-		ret = -ENOTSUPP;
+		ret = -EOPNOTSUPP;
 		goto out;
 	}
 
@@ -4116,8 +4100,8 @@ out:
 	return ret;
 }
 
-static int record_ref(struct btrfs_root *root, int num, u64 dir, int index,
-		      struct fs_path *name, void *ctx, struct list_head *refs)
+static int record_ref(struct btrfs_root *root, u64 dir, struct fs_path *name,
+		      void *ctx, struct list_head *refs)
 {
 	int ret = 0;
 	struct send_ctx *sctx = ctx;
@@ -4153,8 +4137,7 @@ static int __record_new_ref(int num, u64 dir, int index,
 			    void *ctx)
 {
 	struct send_ctx *sctx = ctx;
-	return record_ref(sctx->send_root, num, dir, index, name,
-			  ctx, &sctx->new_refs);
+	return record_ref(sctx->send_root, dir, name, ctx, &sctx->new_refs);
 }
 
 
@@ -4163,8 +4146,8 @@ static int __record_deleted_ref(int num, u64 dir, int index,
 				void *ctx)
 {
 	struct send_ctx *sctx = ctx;
-	return record_ref(sctx->parent_root, num, dir, index, name,
-			  ctx, &sctx->deleted_refs);
+	return record_ref(sctx->parent_root, dir, name, ctx,
+			  &sctx->deleted_refs);
 }
 
 static int record_new_ref(struct send_ctx *sctx)
@@ -4508,7 +4491,7 @@ static int process_new_xattr(struct send_ctx *sctx)
 	int ret = 0;
 
 	ret = iterate_dir_item(sctx->send_root, sctx->left_path,
-			       sctx->cmp_key, __process_new_xattr, sctx);
+			       __process_new_xattr, sctx);
 
 	return ret;
 }
@@ -4516,7 +4499,7 @@ static int process_new_xattr(struct send_ctx *sctx)
 static int process_deleted_xattr(struct send_ctx *sctx)
 {
 	return iterate_dir_item(sctx->parent_root, sctx->right_path,
-				sctx->cmp_key, __process_deleted_xattr, sctx);
+				__process_deleted_xattr, sctx);
 }
 
 struct find_xattr_ctx {
@@ -4561,7 +4544,7 @@ static int find_xattr(struct btrfs_root *root,
 	ctx.found_data = NULL;
 	ctx.found_data_len = 0;
 
-	ret = iterate_dir_item(root, path, key, __find_xattr, &ctx);
+	ret = iterate_dir_item(root, path, __find_xattr, &ctx);
 	if (ret < 0)
 		return ret;
 
@@ -4631,11 +4614,11 @@ static int process_changed_xattr(struct send_ctx *sctx)
 	int ret = 0;
 
 	ret = iterate_dir_item(sctx->send_root, sctx->left_path,
-			sctx->cmp_key, __process_changed_new_xattr, sctx);
+			__process_changed_new_xattr, sctx);
 	if (ret < 0)
 		goto out;
 	ret = iterate_dir_item(sctx->parent_root, sctx->right_path,
-			sctx->cmp_key, __process_changed_deleted_xattr, sctx);
+			__process_changed_deleted_xattr, sctx);
 
 out:
 	return ret;
@@ -4685,8 +4668,7 @@ static int process_all_new_xattrs(struct send_ctx *sctx)
 			goto out;
 		}
 
-		ret = iterate_dir_item(root, path, &found_key,
-				       __process_new_xattr, sctx);
+		ret = iterate_dir_item(root, path, __process_new_xattr, sctx);
 		if (ret < 0)
 			goto out;
 
@@ -4733,16 +4715,27 @@ static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
 	/* initial readahead */
 	memset(&sctx->ra, 0, sizeof(struct file_ra_state));
 	file_ra_state_init(&sctx->ra, inode->i_mapping);
-	page_cache_sync_readahead(inode->i_mapping, &sctx->ra, NULL, index,
-		       last_index - index + 1);
 
 	while (index <= last_index) {
 		unsigned cur_len = min_t(unsigned, len,
 					 PAGE_SIZE - pg_offset);
-		page = find_or_create_page(inode->i_mapping, index, GFP_KERNEL);
+
+		page = find_lock_page(inode->i_mapping, index);
 		if (!page) {
-			ret = -ENOMEM;
-			break;
+			page_cache_sync_readahead(inode->i_mapping, &sctx->ra,
+				NULL, index, last_index + 1 - index);
+
+			page = find_or_create_page(inode->i_mapping, index,
+					GFP_KERNEL);
+			if (!page) {
+				ret = -ENOMEM;
+				break;
+			}
+		}
+
+		if (PageReadahead(page)) {
+			page_cache_async_readahead(inode->i_mapping, &sctx->ra,
+				NULL, page, index, last_index + 1 - index);
 		}
 
 		if (!PageUptodate(page)) {
@@ -6172,9 +6165,7 @@ out:
  * Updates compare related fields in sctx and simply forwards to the actual
  * changed_xxx functions.
  */
-static int changed_cb(struct btrfs_root *left_root,
-		      struct btrfs_root *right_root,
-		      struct btrfs_path *left_path,
+static int changed_cb(struct btrfs_path *left_path,
 		      struct btrfs_path *right_path,
 		      struct btrfs_key *key,
 		      enum btrfs_compare_tree_result result,
@@ -6256,8 +6247,8 @@ static int full_send_tree(struct send_ctx *sctx)
 		slot = path->slots[0];
 		btrfs_item_key_to_cpu(eb, &found_key, slot);
 
-		ret = changed_cb(send_root, NULL, path, NULL,
-				&found_key, BTRFS_COMPARE_TREE_NEW, sctx);
+		ret = changed_cb(path, NULL, &found_key,
+				 BTRFS_COMPARE_TREE_NEW, sctx);
 		if (ret < 0)
 			goto out;
 
@@ -6375,13 +6366,12 @@ static void btrfs_root_dec_send_in_progress(struct btrfs_root* root)
 	spin_unlock(&root->root_item_lock);
 }
 
-long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
+long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
 {
 	int ret = 0;
 	struct btrfs_root *send_root = BTRFS_I(file_inode(mnt_file))->root;
 	struct btrfs_fs_info *fs_info = send_root->fs_info;
 	struct btrfs_root *clone_root;
-	struct btrfs_ioctl_send_args *arg = NULL;
 	struct btrfs_key key;
 	struct send_ctx *sctx = NULL;
 	u32 i;
@@ -6417,13 +6407,6 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
 		goto out;
 	}
 
-	arg = memdup_user(arg_, sizeof(*arg));
-	if (IS_ERR(arg)) {
-		ret = PTR_ERR(arg);
-		arg = NULL;
-		goto out;
-	}
-
 	/*
 	 * Check that we don't overflow at later allocations, we request
 	 * clone_sources_count + 1 items, and compare to unsigned long inside
@@ -6664,7 +6647,6 @@ out:
 	if (sctx && !IS_ERR_OR_NULL(sctx->parent_root))
 		btrfs_root_dec_send_in_progress(sctx->parent_root);
 
-	kfree(arg);
 	kvfree(clone_sources_tmp);
 
 	if (sctx) {
diff --git a/fs/btrfs/send.h b/fs/btrfs/send.h
index 02e00166c4da..3aa4bc55754f 100644
--- a/fs/btrfs/send.h
+++ b/fs/btrfs/send.h
@@ -130,5 +130,5 @@ enum {
 #define BTRFS_SEND_A_MAX (__BTRFS_SEND_A_MAX - 1)
 
 #ifdef __KERNEL__
-long btrfs_ioctl_send(struct file *mnt_file, void __user *arg);
+long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg);
 #endif
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 0b7a1d8cd08b..65af029559b5 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -103,7 +103,7 @@ static void btrfs_handle_error(struct btrfs_fs_info *fs_info)
 {
 	struct super_block *sb = fs_info->sb;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	if (test_bit(BTRFS_FS_STATE_ERROR, &fs_info->fs_state)) {
@@ -139,7 +139,7 @@ void __btrfs_handle_fs_error(struct btrfs_fs_info *fs_info, const char *function
 	 * Special case: if the error is EROFS, and we're already
 	 * under MS_RDONLY, then it is safe here.
 	 */
-	if (errno == -EROFS && (sb->s_flags & MS_RDONLY))
+	if (errno == -EROFS && sb_rdonly(sb))
   		return;
 
 #ifdef CONFIG_PRINTK
@@ -202,7 +202,6 @@ static struct ratelimit_state printk_limits[] = {
 
 void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
 {
-	struct super_block *sb = fs_info->sb;
 	char lvl[PRINTK_MAX_SINGLE_HEADER_LEN + 1] = "\0";
 	struct va_format vaf;
 	va_list args;
@@ -228,7 +227,8 @@ void btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
 	vaf.va = &args;
 
 	if (__ratelimit(ratelimit))
-		printk("%sBTRFS %s (device %s): %pV\n", lvl, type, sb->s_id, &vaf);
+		printk("%sBTRFS %s (device %s): %pV\n", lvl, type,
+			fs_info ? fs_info->sb->s_id : "<unknown>", &vaf);
 
 	va_end(args);
 }
@@ -292,7 +292,7 @@ void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function,
 	vaf.va = &args;
 
 	errstr = btrfs_decode_error(errno);
-	if (fs_info && (fs_info->mount_opt & BTRFS_MOUNT_PANIC_ON_FATAL_ERROR))
+	if (fs_info && (btrfs_test_opt(fs_info, PANIC_ON_FATAL_ERROR)))
 		panic(KERN_CRIT "BTRFS panic (device %s) in %s:%d: %pV (errno=%d %s)\n",
 			s_id, function, line, &vaf, errno, errstr);
 
@@ -326,6 +326,9 @@ enum {
 #ifdef CONFIG_BTRFS_DEBUG
 	Opt_fragment_data, Opt_fragment_metadata, Opt_fragment_all,
 #endif
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+	Opt_ref_verify,
+#endif
 	Opt_err,
 };
 
@@ -387,6 +390,9 @@ static const match_table_t tokens = {
 	{Opt_fragment_metadata, "fragment=metadata"},
 	{Opt_fragment_all, "fragment=all"},
 #endif
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+	{Opt_ref_verify, "ref_verify"},
+#endif
 	{Opt_err, NULL},
 };
 
@@ -502,6 +508,8 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
 			    strncmp(args[0].from, "zlib", 4) == 0) {
 				compress_type = "zlib";
 				info->compress_type = BTRFS_COMPRESS_ZLIB;
+				info->compress_level =
+					btrfs_compress_str2level(args[0].from);
 				btrfs_set_opt(info->mount_opt, COMPRESS);
 				btrfs_clear_opt(info->mount_opt, NODATACOW);
 				btrfs_clear_opt(info->mount_opt, NODATASUM);
@@ -514,6 +522,14 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
 				btrfs_clear_opt(info->mount_opt, NODATASUM);
 				btrfs_set_fs_incompat(info, COMPRESS_LZO);
 				no_compress = 0;
+			} else if (strcmp(args[0].from, "zstd") == 0) {
+				compress_type = "zstd";
+				info->compress_type = BTRFS_COMPRESS_ZSTD;
+				btrfs_set_opt(info->mount_opt, COMPRESS);
+				btrfs_clear_opt(info->mount_opt, NODATACOW);
+				btrfs_clear_opt(info->mount_opt, NODATASUM);
+				btrfs_set_fs_incompat(info, COMPRESS_ZSTD);
+				no_compress = 0;
 			} else if (strncmp(args[0].from, "no", 2) == 0) {
 				compress_type = "no";
 				btrfs_clear_opt(info->mount_opt, COMPRESS);
@@ -541,9 +557,9 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
 			      compress_force != saved_compress_force)) ||
 			    (!btrfs_test_opt(info, COMPRESS) &&
 			     no_compress == 1)) {
-				btrfs_info(info, "%s %s compression",
+				btrfs_info(info, "%s %s compression, level %d",
 					   (compress_force) ? "force" : "use",
-					   compress_type);
+					   compress_type, info->compress_level);
 			}
 			compress_force = false;
 			break;
@@ -817,6 +833,12 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options,
 			btrfs_set_opt(info->mount_opt, FRAGMENT_DATA);
 			break;
 #endif
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+		case Opt_ref_verify:
+			btrfs_info(info, "doing ref verification");
+			btrfs_set_opt(info->mount_opt, REF_VERIFY);
+			break;
+#endif
 		case Opt_err:
 			btrfs_info(info, "unrecognized mount option '%s'", p);
 			ret = -EINVAL;
@@ -1127,7 +1149,7 @@ static int btrfs_fill_super(struct super_block *sb,
 #ifdef CONFIG_BTRFS_FS_POSIX_ACL
 	sb->s_flags |= MS_POSIXACL;
 #endif
-	sb->s_flags |= MS_I_VERSION;
+	sb->s_flags |= SB_I_VERSION;
 	sb->s_iflags |= SB_I_CGROUPWB;
 
 	err = super_setup_bdi(sb);
@@ -1197,8 +1219,8 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
 			 * happens. The pending operations are delayed to the
 			 * next commit after thawing.
 			 */
-			if (__sb_start_write(sb, SB_FREEZE_WRITE, false))
-				__sb_end_write(sb, SB_FREEZE_WRITE);
+			if (sb_start_write_trylock(sb))
+				sb_end_write(sb);
 			else
 				return 0;
 			trans = btrfs_start_transaction(root, 0);
@@ -1230,12 +1252,16 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
 	if (btrfs_test_opt(info, COMPRESS)) {
 		if (info->compress_type == BTRFS_COMPRESS_ZLIB)
 			compress_type = "zlib";
-		else
+		else if (info->compress_type == BTRFS_COMPRESS_LZO)
 			compress_type = "lzo";
+		else
+			compress_type = "zstd";
 		if (btrfs_test_opt(info, FORCE_COMPRESS))
 			seq_printf(seq, ",compress-force=%s", compress_type);
 		else
 			seq_printf(seq, ",compress=%s", compress_type);
+		if (info->compress_level)
+			seq_printf(seq, ":%d", info->compress_level);
 	}
 	if (btrfs_test_opt(info, NOSSD))
 		seq_puts(seq, ",nossd");
@@ -1295,6 +1321,8 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry)
 	if (btrfs_test_opt(info, FRAGMENT_METADATA))
 		seq_puts(seq, ",fragment=metadata");
 #endif
+	if (btrfs_test_opt(info, REF_VERIFY))
+		seq_puts(seq, ",ref_verify");
 	seq_printf(seq, ",subvolid=%llu",
 		  BTRFS_I(d_inode(dentry))->root->root_key.objectid);
 	seq_puts(seq, ",subvol=");
@@ -1691,8 +1719,7 @@ static inline void btrfs_remount_cleanup(struct btrfs_fs_info *fs_info,
 	 * close or the filesystem is read only.
 	 */
 	if (btrfs_raw_test_opt(old_opts, AUTO_DEFRAG) &&
-	    (!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) ||
-	     (fs_info->sb->s_flags & MS_RDONLY))) {
+	    (!btrfs_raw_test_opt(fs_info->mount_opt, AUTO_DEFRAG) || sb_rdonly(fs_info->sb))) {
 		btrfs_cleanup_defrag_inodes(fs_info);
 	}
 
@@ -1739,7 +1766,7 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
 	btrfs_resize_thread_pool(fs_info,
 		fs_info->thread_pool_size, old_thread_pool_size);
 
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		goto out;
 
 	if (*flags & MS_RDONLY) {
@@ -1840,7 +1867,7 @@ out:
 
 restore:
 	/* We've hit an error - don't reset MS_RDONLY */
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		old_flags |= MS_RDONLY;
 	sb->s_flags = old_flags;
 	fs_info->mount_opt = old_opts;
@@ -2103,7 +2130,7 @@ static int btrfs_statfs(struct dentry *dentry, struct kstatfs *buf)
 	 * succeed even if the Avail is zero. But this is better than the other
 	 * way around.
 	 */
-	thresh = 4 * 1024 * 1024;
+	thresh = SZ_4M;
 
 	if (!mixed && total_free_meta - thresh < block_rsv->size)
 		buf->f_bavail = 0;
@@ -2310,6 +2337,9 @@ static void btrfs_print_mod_info(void)
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
 			", integrity-checker=on"
 #endif
+#ifdef CONFIG_BTRFS_FS_REF_VERIFY
+			", ref-verify=on"
+#endif
 			"\n",
 			btrfs_crc32c_impl());
 }
diff --git a/fs/btrfs/sysfs.c b/fs/btrfs/sysfs.c
index c2d5f3580b4c..a28bba801264 100644
--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -120,7 +120,7 @@ static ssize_t btrfs_feature_attr_store(struct kobject *kobj,
 	if (!fs_info)
 		return -EPERM;
 
-	if (fs_info->sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(fs_info->sb))
 		return -EROFS;
 
 	ret = kstrtoul(skip_spaces(buf), 0, &val);
@@ -200,6 +200,7 @@ BTRFS_FEAT_ATTR_INCOMPAT(mixed_backref, MIXED_BACKREF);
 BTRFS_FEAT_ATTR_INCOMPAT(default_subvol, DEFAULT_SUBVOL);
 BTRFS_FEAT_ATTR_INCOMPAT(mixed_groups, MIXED_GROUPS);
 BTRFS_FEAT_ATTR_INCOMPAT(compress_lzo, COMPRESS_LZO);
+BTRFS_FEAT_ATTR_INCOMPAT(compress_zstd, COMPRESS_ZSTD);
 BTRFS_FEAT_ATTR_INCOMPAT(big_metadata, BIG_METADATA);
 BTRFS_FEAT_ATTR_INCOMPAT(extended_iref, EXTENDED_IREF);
 BTRFS_FEAT_ATTR_INCOMPAT(raid56, RAID56);
@@ -212,6 +213,7 @@ static struct attribute *btrfs_supported_feature_attrs[] = {
 	BTRFS_FEAT_ATTR_PTR(default_subvol),
 	BTRFS_FEAT_ATTR_PTR(mixed_groups),
 	BTRFS_FEAT_ATTR_PTR(compress_lzo),
+	BTRFS_FEAT_ATTR_PTR(compress_zstd),
 	BTRFS_FEAT_ATTR_PTR(big_metadata),
 	BTRFS_FEAT_ATTR_PTR(extended_iref),
 	BTRFS_FEAT_ATTR_PTR(raid56),
@@ -245,7 +247,7 @@ static ssize_t global_rsv_size_show(struct kobject *kobj,
 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
 	return btrfs_show_u64(&block_rsv->size, &block_rsv->lock, buf);
 }
-BTRFS_ATTR(global_rsv_size, global_rsv_size_show);
+BTRFS_ATTR(allocation, global_rsv_size, global_rsv_size_show);
 
 static ssize_t global_rsv_reserved_show(struct kobject *kobj,
 					struct kobj_attribute *a, char *buf)
@@ -254,15 +256,15 @@ static ssize_t global_rsv_reserved_show(struct kobject *kobj,
 	struct btrfs_block_rsv *block_rsv = &fs_info->global_block_rsv;
 	return btrfs_show_u64(&block_rsv->reserved, &block_rsv->lock, buf);
 }
-BTRFS_ATTR(global_rsv_reserved, global_rsv_reserved_show);
+BTRFS_ATTR(allocation, global_rsv_reserved, global_rsv_reserved_show);
 
 #define to_space_info(_kobj) container_of(_kobj, struct btrfs_space_info, kobj)
 #define to_raid_kobj(_kobj) container_of(_kobj, struct raid_kobject, kobj)
 
 static ssize_t raid_bytes_show(struct kobject *kobj,
 			       struct kobj_attribute *attr, char *buf);
-BTRFS_RAID_ATTR(total_bytes, raid_bytes_show);
-BTRFS_RAID_ATTR(used_bytes, raid_bytes_show);
+BTRFS_ATTR(raid, total_bytes, raid_bytes_show);
+BTRFS_ATTR(raid, used_bytes, raid_bytes_show);
 
 static ssize_t raid_bytes_show(struct kobject *kobj,
 			       struct kobj_attribute *attr, char *buf)
@@ -275,7 +277,7 @@ static ssize_t raid_bytes_show(struct kobject *kobj,
 
 	down_read(&sinfo->groups_sem);
 	list_for_each_entry(block_group, &sinfo->block_groups[index], list) {
-		if (&attr->attr == BTRFS_RAID_ATTR_PTR(total_bytes))
+		if (&attr->attr == BTRFS_ATTR_PTR(raid, total_bytes))
 			val += block_group->key.offset;
 		else
 			val += btrfs_block_group_used(&block_group->item);
@@ -285,8 +287,8 @@ static ssize_t raid_bytes_show(struct kobject *kobj,
 }
 
 static struct attribute *raid_attributes[] = {
-	BTRFS_RAID_ATTR_PTR(total_bytes),
-	BTRFS_RAID_ATTR_PTR(used_bytes),
+	BTRFS_ATTR_PTR(raid, total_bytes),
+	BTRFS_ATTR_PTR(raid, used_bytes),
 	NULL
 };
 
@@ -309,7 +311,7 @@ static ssize_t btrfs_space_info_show_##field(struct kobject *kobj,	\
 	struct btrfs_space_info *sinfo = to_space_info(kobj);		\
 	return btrfs_show_u64(&sinfo->field, &sinfo->lock, buf);	\
 }									\
-BTRFS_ATTR(field, btrfs_space_info_show_##field)
+BTRFS_ATTR(space_info, field, btrfs_space_info_show_##field)
 
 static ssize_t btrfs_space_info_show_total_bytes_pinned(struct kobject *kobj,
 						       struct kobj_attribute *a,
@@ -329,19 +331,20 @@ SPACE_INFO_ATTR(bytes_may_use);
 SPACE_INFO_ATTR(bytes_readonly);
 SPACE_INFO_ATTR(disk_used);
 SPACE_INFO_ATTR(disk_total);
-BTRFS_ATTR(total_bytes_pinned, btrfs_space_info_show_total_bytes_pinned);
+BTRFS_ATTR(space_info, total_bytes_pinned,
+	   btrfs_space_info_show_total_bytes_pinned);
 
 static struct attribute *space_info_attrs[] = {
-	BTRFS_ATTR_PTR(flags),
-	BTRFS_ATTR_PTR(total_bytes),
-	BTRFS_ATTR_PTR(bytes_used),
-	BTRFS_ATTR_PTR(bytes_pinned),
-	BTRFS_ATTR_PTR(bytes_reserved),
-	BTRFS_ATTR_PTR(bytes_may_use),
-	BTRFS_ATTR_PTR(bytes_readonly),
-	BTRFS_ATTR_PTR(disk_used),
-	BTRFS_ATTR_PTR(disk_total),
-	BTRFS_ATTR_PTR(total_bytes_pinned),
+	BTRFS_ATTR_PTR(space_info, flags),
+	BTRFS_ATTR_PTR(space_info, total_bytes),
+	BTRFS_ATTR_PTR(space_info, bytes_used),
+	BTRFS_ATTR_PTR(space_info, bytes_pinned),
+	BTRFS_ATTR_PTR(space_info, bytes_reserved),
+	BTRFS_ATTR_PTR(space_info, bytes_may_use),
+	BTRFS_ATTR_PTR(space_info, bytes_readonly),
+	BTRFS_ATTR_PTR(space_info, disk_used),
+	BTRFS_ATTR_PTR(space_info, disk_total),
+	BTRFS_ATTR_PTR(space_info, total_bytes_pinned),
 	NULL,
 };
 
@@ -359,8 +362,8 @@ struct kobj_type space_info_ktype = {
 };
 
 static const struct attribute *allocation_attrs[] = {
-	BTRFS_ATTR_PTR(global_rsv_reserved),
-	BTRFS_ATTR_PTR(global_rsv_size),
+	BTRFS_ATTR_PTR(allocation, global_rsv_reserved),
+	BTRFS_ATTR_PTR(allocation, global_rsv_size),
 	NULL,
 };
 
@@ -388,7 +391,7 @@ static ssize_t btrfs_label_store(struct kobject *kobj,
 	if (!fs_info)
 		return -EPERM;
 
-	if (fs_info->sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(fs_info->sb))
 		return -EROFS;
 
 	/*
@@ -413,7 +416,7 @@ static ssize_t btrfs_label_store(struct kobject *kobj,
 
 	return len;
 }
-BTRFS_ATTR_RW(label, btrfs_label_show, btrfs_label_store);
+BTRFS_ATTR_RW(, label, btrfs_label_show, btrfs_label_store);
 
 static ssize_t btrfs_nodesize_show(struct kobject *kobj,
 				struct kobj_attribute *a, char *buf)
@@ -423,7 +426,7 @@ static ssize_t btrfs_nodesize_show(struct kobject *kobj,
 	return snprintf(buf, PAGE_SIZE, "%u\n", fs_info->super_copy->nodesize);
 }
 
-BTRFS_ATTR(nodesize, btrfs_nodesize_show);
+BTRFS_ATTR(, nodesize, btrfs_nodesize_show);
 
 static ssize_t btrfs_sectorsize_show(struct kobject *kobj,
 				struct kobj_attribute *a, char *buf)
@@ -434,7 +437,7 @@ static ssize_t btrfs_sectorsize_show(struct kobject *kobj,
 			fs_info->super_copy->sectorsize);
 }
 
-BTRFS_ATTR(sectorsize, btrfs_sectorsize_show);
+BTRFS_ATTR(, sectorsize, btrfs_sectorsize_show);
 
 static ssize_t btrfs_clone_alignment_show(struct kobject *kobj,
 				struct kobj_attribute *a, char *buf)
@@ -445,7 +448,7 @@ static ssize_t btrfs_clone_alignment_show(struct kobject *kobj,
 			fs_info->super_copy->sectorsize);
 }
 
-BTRFS_ATTR(clone_alignment, btrfs_clone_alignment_show);
+BTRFS_ATTR(, clone_alignment, btrfs_clone_alignment_show);
 
 static ssize_t quota_override_show(struct kobject *kobj,
 				   struct kobj_attribute *a, char *buf)
@@ -485,14 +488,14 @@ static ssize_t quota_override_store(struct kobject *kobj,
 	return len;
 }
 
-BTRFS_ATTR_RW(quota_override, quota_override_show, quota_override_store);
+BTRFS_ATTR_RW(, quota_override, quota_override_show, quota_override_store);
 
 static const struct attribute *btrfs_attrs[] = {
-	BTRFS_ATTR_PTR(label),
-	BTRFS_ATTR_PTR(nodesize),
-	BTRFS_ATTR_PTR(sectorsize),
-	BTRFS_ATTR_PTR(clone_alignment),
-	BTRFS_ATTR_PTR(quota_override),
+	BTRFS_ATTR_PTR(, label),
+	BTRFS_ATTR_PTR(, nodesize),
+	BTRFS_ATTR_PTR(, sectorsize),
+	BTRFS_ATTR_PTR(, clone_alignment),
+	BTRFS_ATTR_PTR(, quota_override),
 	NULL,
 };
 
diff --git a/fs/btrfs/sysfs.h b/fs/btrfs/sysfs.h
index d7da1a4c2f6c..80457f31c29f 100644
--- a/fs/btrfs/sysfs.h
+++ b/fs/btrfs/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BTRFS_SYSFS_H_
 #define _BTRFS_SYSFS_H_
 
@@ -20,21 +21,16 @@ enum btrfs_feature_set {
 	.store	= _store,						\
 }
 
-#define BTRFS_ATTR_RW(_name, _show, _store)			\
-	static struct kobj_attribute btrfs_attr_##_name =		\
+#define BTRFS_ATTR_RW(_prefix, _name, _show, _store)			\
+	static struct kobj_attribute btrfs_attr_##_prefix##_##_name =	\
 			__INIT_KOBJ_ATTR(_name, 0644, _show, _store)
 
-#define BTRFS_ATTR(_name, _show)					\
-	static struct kobj_attribute btrfs_attr_##_name =		\
+#define BTRFS_ATTR(_prefix, _name, _show)				\
+	static struct kobj_attribute btrfs_attr_##_prefix##_##_name =	\
 			__INIT_KOBJ_ATTR(_name, 0444, _show, NULL)
 
-#define BTRFS_ATTR_PTR(_name)    (&btrfs_attr_##_name.attr)
-
-#define BTRFS_RAID_ATTR(_name, _show)					\
-	static struct kobj_attribute btrfs_raid_attr_##_name =		\
-			__INIT_KOBJ_ATTR(_name, 0444, _show, NULL)
-
-#define BTRFS_RAID_ATTR_PTR(_name)    (&btrfs_raid_attr_##_name.attr)
+#define BTRFS_ATTR_PTR(_prefix, _name)					\
+	(&btrfs_attr_##_prefix##_##_name.attr)
 
 
 struct btrfs_feature_attr {
@@ -43,15 +39,16 @@ struct btrfs_feature_attr {
 	u64 feature_bit;
 };
 
-#define BTRFS_FEAT_ATTR(_name, _feature_set, _prefix, _feature_bit)	     \
-static struct btrfs_feature_attr btrfs_attr_##_name = {			     \
+#define BTRFS_FEAT_ATTR(_name, _feature_set, _feature_prefix, _feature_bit)  \
+static struct btrfs_feature_attr btrfs_attr_features_##_name = {	     \
 	.kobj_attr = __INIT_KOBJ_ATTR(_name, S_IRUGO,			     \
 				      btrfs_feature_attr_show,		     \
 				      btrfs_feature_attr_store),	     \
 	.feature_set	= _feature_set,					     \
-	.feature_bit	= _prefix ##_## _feature_bit,			     \
+	.feature_bit	= _feature_prefix ##_## _feature_bit,		     \
 }
-#define BTRFS_FEAT_ATTR_PTR(_name)    (&btrfs_attr_##_name.kobj_attr.attr)
+#define BTRFS_FEAT_ATTR_PTR(_name)					     \
+	(&btrfs_attr_features_##_name.kobj_attr.attr)
 
 #define BTRFS_FEAT_ATTR_COMPAT(name, feature) \
 	BTRFS_FEAT_ATTR(name, FEAT_COMPAT, BTRFS_FEATURE_COMPAT, feature)
diff --git a/fs/btrfs/tests/free-space-tree-tests.c b/fs/btrfs/tests/free-space-tree-tests.c
index 1458bb0ea124..8444a018cca2 100644
--- a/fs/btrfs/tests/free-space-tree-tests.c
+++ b/fs/btrfs/tests/free-space-tree-tests.c
@@ -500,7 +500,8 @@ static int run_test(test_func_t test_func, int bitmaps, u32 sectorsize,
 	path = btrfs_alloc_path();
 	if (!path) {
 		test_msg("Couldn't allocate path\n");
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto out;
 	}
 
 	ret = add_block_group_free_space(&trans, root->fs_info, cache);
diff --git a/fs/btrfs/tests/inode-tests.c b/fs/btrfs/tests/inode-tests.c
index 8c91d03cc82d..f797642c013d 100644
--- a/fs/btrfs/tests/inode-tests.c
+++ b/fs/btrfs/tests/inode-tests.c
@@ -770,7 +770,7 @@ static noinline int test_btrfs_get_extent(u32 sectorsize, u32 nodesize)
 	offset = em->start + em->len;
 	free_extent_map(em);
 
-	em = btrfs_get_extent(BTRFS_I(inode), NULL, 0, offset, 4096 * 1024, 0);
+	em = btrfs_get_extent(BTRFS_I(inode), NULL, 0, offset, SZ_4M, 0);
 	if (IS_ERR(em)) {
 		test_msg("Got an error when we shouldn't have\n");
 		goto out;
@@ -968,7 +968,6 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 	btrfs_test_inode_set_ops(inode);
 
 	/* [BTRFS_MAX_EXTENT_SIZE] */
-	BTRFS_I(inode)->outstanding_extents++;
 	ret = btrfs_set_extent_delalloc(inode, 0, BTRFS_MAX_EXTENT_SIZE - 1,
 					NULL, 0);
 	if (ret) {
@@ -983,7 +982,6 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 	}
 
 	/* [BTRFS_MAX_EXTENT_SIZE][sectorsize] */
-	BTRFS_I(inode)->outstanding_extents++;
 	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE,
 					BTRFS_MAX_EXTENT_SIZE + sectorsize - 1,
 					NULL, 0);
@@ -1003,7 +1001,7 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 			       BTRFS_MAX_EXTENT_SIZE >> 1,
 			       (BTRFS_MAX_EXTENT_SIZE >> 1) + sectorsize - 1,
 			       EXTENT_DELALLOC | EXTENT_DIRTY |
-			       EXTENT_UPTODATE | EXTENT_DO_ACCOUNTING, 0, 0,
+			       EXTENT_UPTODATE, 0, 0,
 			       NULL, GFP_KERNEL);
 	if (ret) {
 		test_msg("clear_extent_bit returned %d\n", ret);
@@ -1017,7 +1015,6 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 	}
 
 	/* [BTRFS_MAX_EXTENT_SIZE][sectorsize] */
-	BTRFS_I(inode)->outstanding_extents++;
 	ret = btrfs_set_extent_delalloc(inode, BTRFS_MAX_EXTENT_SIZE >> 1,
 					(BTRFS_MAX_EXTENT_SIZE >> 1)
 					+ sectorsize - 1,
@@ -1035,12 +1032,7 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 
 	/*
 	 * [BTRFS_MAX_EXTENT_SIZE+sectorsize][sectorsize HOLE][BTRFS_MAX_EXTENT_SIZE+sectorsize]
-	 *
-	 * I'm artificially adding 2 to outstanding_extents because in the
-	 * buffered IO case we'd add things up as we go, but I don't feel like
-	 * doing that here, this isn't the interesting case we want to test.
 	 */
-	BTRFS_I(inode)->outstanding_extents += 2;
 	ret = btrfs_set_extent_delalloc(inode,
 			BTRFS_MAX_EXTENT_SIZE + 2 * sectorsize,
 			(BTRFS_MAX_EXTENT_SIZE << 1) + 3 * sectorsize - 1,
@@ -1059,7 +1051,6 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 	/*
 	* [BTRFS_MAX_EXTENT_SIZE+sectorsize][sectorsize][BTRFS_MAX_EXTENT_SIZE+sectorsize]
 	*/
-	BTRFS_I(inode)->outstanding_extents++;
 	ret = btrfs_set_extent_delalloc(inode,
 			BTRFS_MAX_EXTENT_SIZE + sectorsize,
 			BTRFS_MAX_EXTENT_SIZE + 2 * sectorsize - 1, NULL, 0);
@@ -1079,7 +1070,7 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 			       BTRFS_MAX_EXTENT_SIZE + sectorsize,
 			       BTRFS_MAX_EXTENT_SIZE + 2 * sectorsize - 1,
 			       EXTENT_DIRTY | EXTENT_DELALLOC |
-			       EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+			       EXTENT_UPTODATE, 0, 0,
 			       NULL, GFP_KERNEL);
 	if (ret) {
 		test_msg("clear_extent_bit returned %d\n", ret);
@@ -1096,7 +1087,6 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 	 * Refill the hole again just for good measure, because I thought it
 	 * might fail and I'd rather satisfy my paranoia at this point.
 	 */
-	BTRFS_I(inode)->outstanding_extents++;
 	ret = btrfs_set_extent_delalloc(inode,
 			BTRFS_MAX_EXTENT_SIZE + sectorsize,
 			BTRFS_MAX_EXTENT_SIZE + 2 * sectorsize - 1, NULL, 0);
@@ -1114,7 +1104,7 @@ static int test_extent_accounting(u32 sectorsize, u32 nodesize)
 	/* Empty */
 	ret = clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1,
 			       EXTENT_DIRTY | EXTENT_DELALLOC |
-			       EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+			       EXTENT_UPTODATE, 0, 0,
 			       NULL, GFP_KERNEL);
 	if (ret) {
 		test_msg("clear_extent_bit returned %d\n", ret);
@@ -1131,7 +1121,7 @@ out:
 	if (ret)
 		clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, (u64)-1,
 				 EXTENT_DIRTY | EXTENT_DELALLOC |
-				 EXTENT_DO_ACCOUNTING | EXTENT_UPTODATE, 0, 0,
+				 EXTENT_UPTODATE, 0, 0,
 				 NULL, GFP_KERNEL);
 	iput(inode);
 	btrfs_free_dummy_root(root);
diff --git a/fs/btrfs/tests/qgroup-tests.c b/fs/btrfs/tests/qgroup-tests.c
index 0f4ce970d195..90204b166643 100644
--- a/fs/btrfs/tests/qgroup-tests.c
+++ b/fs/btrfs/tests/qgroup-tests.c
@@ -240,7 +240,8 @@ static int test_no_shared_qgroup(struct btrfs_root *root,
 	 * we can only call btrfs_qgroup_account_extent() directly to test
 	 * quota.
 	 */
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		test_msg("Couldn't find old roots: %d\n", ret);
@@ -252,7 +253,8 @@ static int test_no_shared_qgroup(struct btrfs_root *root,
 	if (ret)
 		return ret;
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		ulist_free(new_roots);
@@ -275,7 +277,8 @@ static int test_no_shared_qgroup(struct btrfs_root *root,
 	old_roots = NULL;
 	new_roots = NULL;
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		test_msg("Couldn't find old roots: %d\n", ret);
@@ -286,7 +289,8 @@ static int test_no_shared_qgroup(struct btrfs_root *root,
 	if (ret)
 		return -EINVAL;
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		ulist_free(new_roots);
@@ -337,7 +341,8 @@ static int test_multiple_refs(struct btrfs_root *root,
 		return ret;
 	}
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		test_msg("Couldn't find old roots: %d\n", ret);
@@ -349,7 +354,8 @@ static int test_multiple_refs(struct btrfs_root *root,
 	if (ret)
 		return ret;
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		ulist_free(new_roots);
@@ -370,7 +376,8 @@ static int test_multiple_refs(struct btrfs_root *root,
 		return -EINVAL;
 	}
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		test_msg("Couldn't find old roots: %d\n", ret);
@@ -382,7 +389,8 @@ static int test_multiple_refs(struct btrfs_root *root,
 	if (ret)
 		return ret;
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		ulist_free(new_roots);
@@ -409,7 +417,8 @@ static int test_multiple_refs(struct btrfs_root *root,
 		return -EINVAL;
 	}
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &old_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		test_msg("Couldn't find old roots: %d\n", ret);
@@ -421,7 +430,8 @@ static int test_multiple_refs(struct btrfs_root *root,
 	if (ret)
 		return ret;
 
-	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots);
+	ret = btrfs_find_all_roots(&trans, fs_info, nodesize, 0, &new_roots,
+			false);
 	if (ret) {
 		ulist_free(old_roots);
 		ulist_free(new_roots);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index f615d59b0489..5a8c2649af2f 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -797,8 +797,7 @@ static int should_end_transaction(struct btrfs_trans_handle *trans)
 {
 	struct btrfs_fs_info *fs_info = trans->fs_info;
 
-	if (fs_info->global_block_rsv.space_info->full &&
-	    btrfs_check_space_for_delayed_refs(trans, fs_info))
+	if (btrfs_check_space_for_delayed_refs(trans, fs_info))
 		return 1;
 
 	return !!btrfs_block_rsv_check(&fs_info->global_block_rsv, 5);
@@ -950,6 +949,7 @@ int btrfs_write_marked_extents(struct btrfs_fs_info *fs_info,
 	u64 start = 0;
 	u64 end;
 
+	atomic_inc(&BTRFS_I(fs_info->btree_inode)->sync_writers);
 	while (!find_first_extent_bit(dirty_pages, start, &start, &end,
 				      mark, &cached_state)) {
 		bool wait_writeback = false;
@@ -985,6 +985,7 @@ int btrfs_write_marked_extents(struct btrfs_fs_info *fs_info,
 		cond_resched();
 		start = end + 1;
 	}
+	atomic_dec(&BTRFS_I(fs_info->btree_inode)->sync_writers);
 	return werr;
 }
 
@@ -1915,8 +1916,17 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
 
 static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)
 {
+	/*
+	 * We use writeback_inodes_sb here because if we used
+	 * btrfs_start_delalloc_roots we would deadlock with fs freeze.
+	 * Currently are holding the fs freeze lock, if we do an async flush
+	 * we'll do btrfs_join_transaction() and deadlock because we need to
+	 * wait for the fs freeze lock.  Using the direct flushing we benefit
+	 * from already being in a transaction and our join_transaction doesn't
+	 * have to re-take the fs freeze lock.
+	 */
 	if (btrfs_test_opt(fs_info, FLUSHONCOMMIT))
-		return btrfs_start_delalloc_roots(fs_info, 1, -1);
+		writeback_inodes_sb(fs_info->sb, WB_REASON_SYNC);
 	return 0;
 }
 
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
new file mode 100644
index 000000000000..114fc5f0ecc5
--- /dev/null
+++ b/fs/btrfs/tree-checker.c
@@ -0,0 +1,425 @@
+/*
+ * Copyright (C) Qu Wenruo 2017.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program.
+ */
+
+/*
+ * The module is used to catch unexpected/corrupted tree block data.
+ * Such behavior can be caused either by a fuzzed image or bugs.
+ *
+ * The objective is to do leaf/node validation checks when tree block is read
+ * from disk, and check *every* possible member, so other code won't
+ * need to checking them again.
+ *
+ * Due to the potential and unwanted damage, every checker needs to be
+ * carefully reviewed otherwise so it does not prevent mount of valid images.
+ */
+
+#include "ctree.h"
+#include "tree-checker.h"
+#include "disk-io.h"
+#include "compression.h"
+
+/*
+ * Error message should follow the following format:
+ * corrupt <type>: <identifier>, <reason>[, <bad_value>]
+ *
+ * @type:	leaf or node
+ * @identifier:	the necessary info to locate the leaf/node.
+ * 		It's recommened to decode key.objecitd/offset if it's
+ * 		meaningful.
+ * @reason:	describe the error
+ * @bad_value:	optional, it's recommened to output bad value and its
+ *		expected value (range).
+ *
+ * Since comma is used to separate the components, only space is allowed
+ * inside each component.
+ */
+
+/*
+ * Append generic "corrupt leaf/node root=%llu block=%llu slot=%d: " to @fmt.
+ * Allows callers to customize the output.
+ */
+__printf(4, 5)
+static void generic_err(const struct btrfs_root *root,
+			const struct extent_buffer *eb, int slot,
+			const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	btrfs_crit(root->fs_info,
+		"corrupt %s: root=%llu block=%llu slot=%d, %pV",
+		btrfs_header_level(eb) == 0 ? "leaf" : "node",
+		root->objectid, btrfs_header_bytenr(eb), slot, &vaf);
+	va_end(args);
+}
+
+/*
+ * Customized reporter for extent data item, since its key objectid and
+ * offset has its own meaning.
+ */
+__printf(4, 5)
+static void file_extent_err(const struct btrfs_root *root,
+			    const struct extent_buffer *eb, int slot,
+			    const char *fmt, ...)
+{
+	struct btrfs_key key;
+	struct va_format vaf;
+	va_list args;
+
+	btrfs_item_key_to_cpu(eb, &key, slot);
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	btrfs_crit(root->fs_info,
+	"corrupt %s: root=%llu block=%llu slot=%d ino=%llu file_offset=%llu, %pV",
+		btrfs_header_level(eb) == 0 ? "leaf" : "node", root->objectid,
+		btrfs_header_bytenr(eb), slot, key.objectid, key.offset, &vaf);
+	va_end(args);
+}
+
+/*
+ * Return 0 if the btrfs_file_extent_##name is aligned to @alignment
+ * Else return 1
+ */
+#define CHECK_FE_ALIGNED(root, leaf, slot, fi, name, alignment)		      \
+({									      \
+	if (!IS_ALIGNED(btrfs_file_extent_##name((leaf), (fi)), (alignment))) \
+		file_extent_err((root), (leaf), (slot),			      \
+	"invalid %s for file extent, have %llu, should be aligned to %u",     \
+			(#name), btrfs_file_extent_##name((leaf), (fi)),      \
+			(alignment));					      \
+	(!IS_ALIGNED(btrfs_file_extent_##name((leaf), (fi)), (alignment)));   \
+})
+
+static int check_extent_data_item(struct btrfs_root *root,
+				  struct extent_buffer *leaf,
+				  struct btrfs_key *key, int slot)
+{
+	struct btrfs_file_extent_item *fi;
+	u32 sectorsize = root->fs_info->sectorsize;
+	u32 item_size = btrfs_item_size_nr(leaf, slot);
+
+	if (!IS_ALIGNED(key->offset, sectorsize)) {
+		file_extent_err(root, leaf, slot,
+"unaligned file_offset for file extent, have %llu should be aligned to %u",
+			key->offset, sectorsize);
+		return -EUCLEAN;
+	}
+
+	fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);
+
+	if (btrfs_file_extent_type(leaf, fi) > BTRFS_FILE_EXTENT_TYPES) {
+		file_extent_err(root, leaf, slot,
+		"invalid type for file extent, have %u expect range [0, %u]",
+			btrfs_file_extent_type(leaf, fi),
+			BTRFS_FILE_EXTENT_TYPES);
+		return -EUCLEAN;
+	}
+
+	/*
+	 * Support for new compression/encrption must introduce incompat flag,
+	 * and must be caught in open_ctree().
+	 */
+	if (btrfs_file_extent_compression(leaf, fi) > BTRFS_COMPRESS_TYPES) {
+		file_extent_err(root, leaf, slot,
+	"invalid compression for file extent, have %u expect range [0, %u]",
+			btrfs_file_extent_compression(leaf, fi),
+			BTRFS_COMPRESS_TYPES);
+		return -EUCLEAN;
+	}
+	if (btrfs_file_extent_encryption(leaf, fi)) {
+		file_extent_err(root, leaf, slot,
+			"invalid encryption for file extent, have %u expect 0",
+			btrfs_file_extent_encryption(leaf, fi));
+		return -EUCLEAN;
+	}
+	if (btrfs_file_extent_type(leaf, fi) == BTRFS_FILE_EXTENT_INLINE) {
+		/* Inline extent must have 0 as key offset */
+		if (key->offset) {
+			file_extent_err(root, leaf, slot,
+		"invalid file_offset for inline file extent, have %llu expect 0",
+				key->offset);
+			return -EUCLEAN;
+		}
+
+		/* Compressed inline extent has no on-disk size, skip it */
+		if (btrfs_file_extent_compression(leaf, fi) !=
+		    BTRFS_COMPRESS_NONE)
+			return 0;
+
+		/* Uncompressed inline extent size must match item size */
+		if (item_size != BTRFS_FILE_EXTENT_INLINE_DATA_START +
+		    btrfs_file_extent_ram_bytes(leaf, fi)) {
+			file_extent_err(root, leaf, slot,
+	"invalid ram_bytes for uncompressed inline extent, have %u expect %llu",
+				item_size, BTRFS_FILE_EXTENT_INLINE_DATA_START +
+				btrfs_file_extent_ram_bytes(leaf, fi));
+			return -EUCLEAN;
+		}
+		return 0;
+	}
+
+	/* Regular or preallocated extent has fixed item size */
+	if (item_size != sizeof(*fi)) {
+		file_extent_err(root, leaf, slot,
+	"invalid item size for reg/prealloc file extent, have %u expect %zu",
+			item_size, sizeof(*fi));
+		return -EUCLEAN;
+	}
+	if (CHECK_FE_ALIGNED(root, leaf, slot, fi, ram_bytes, sectorsize) ||
+	    CHECK_FE_ALIGNED(root, leaf, slot, fi, disk_bytenr, sectorsize) ||
+	    CHECK_FE_ALIGNED(root, leaf, slot, fi, disk_num_bytes, sectorsize) ||
+	    CHECK_FE_ALIGNED(root, leaf, slot, fi, offset, sectorsize) ||
+	    CHECK_FE_ALIGNED(root, leaf, slot, fi, num_bytes, sectorsize))
+		return -EUCLEAN;
+	return 0;
+}
+
+static int check_csum_item(struct btrfs_root *root, struct extent_buffer *leaf,
+			   struct btrfs_key *key, int slot)
+{
+	u32 sectorsize = root->fs_info->sectorsize;
+	u32 csumsize = btrfs_super_csum_size(root->fs_info->super_copy);
+
+	if (key->objectid != BTRFS_EXTENT_CSUM_OBJECTID) {
+		generic_err(root, leaf, slot,
+		"invalid key objectid for csum item, have %llu expect %llu",
+			key->objectid, BTRFS_EXTENT_CSUM_OBJECTID);
+		return -EUCLEAN;
+	}
+	if (!IS_ALIGNED(key->offset, sectorsize)) {
+		generic_err(root, leaf, slot,
+	"unaligned key offset for csum item, have %llu should be aligned to %u",
+			key->offset, sectorsize);
+		return -EUCLEAN;
+	}
+	if (!IS_ALIGNED(btrfs_item_size_nr(leaf, slot), csumsize)) {
+		generic_err(root, leaf, slot,
+	"unaligned item size for csum item, have %u should be aligned to %u",
+			btrfs_item_size_nr(leaf, slot), csumsize);
+		return -EUCLEAN;
+	}
+	return 0;
+}
+
+/*
+ * Common point to switch the item-specific validation.
+ */
+static int check_leaf_item(struct btrfs_root *root,
+			   struct extent_buffer *leaf,
+			   struct btrfs_key *key, int slot)
+{
+	int ret = 0;
+
+	switch (key->type) {
+	case BTRFS_EXTENT_DATA_KEY:
+		ret = check_extent_data_item(root, leaf, key, slot);
+		break;
+	case BTRFS_EXTENT_CSUM_KEY:
+		ret = check_csum_item(root, leaf, key, slot);
+		break;
+	}
+	return ret;
+}
+
+int btrfs_check_leaf(struct btrfs_root *root, struct extent_buffer *leaf)
+{
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	/* No valid key type is 0, so all key should be larger than this key */
+	struct btrfs_key prev_key = {0, 0, 0};
+	struct btrfs_key key;
+	u32 nritems = btrfs_header_nritems(leaf);
+	int slot;
+
+	/*
+	 * Extent buffers from a relocation tree have a owner field that
+	 * corresponds to the subvolume tree they are based on. So just from an
+	 * extent buffer alone we can not find out what is the id of the
+	 * corresponding subvolume tree, so we can not figure out if the extent
+	 * buffer corresponds to the root of the relocation tree or not. So
+	 * skip this check for relocation trees.
+	 */
+	if (nritems == 0 && !btrfs_header_flag(leaf, BTRFS_HEADER_FLAG_RELOC)) {
+		struct btrfs_root *check_root;
+
+		key.objectid = btrfs_header_owner(leaf);
+		key.type = BTRFS_ROOT_ITEM_KEY;
+		key.offset = (u64)-1;
+
+		check_root = btrfs_get_fs_root(fs_info, &key, false);
+		/*
+		 * The only reason we also check NULL here is that during
+		 * open_ctree() some roots has not yet been set up.
+		 */
+		if (!IS_ERR_OR_NULL(check_root)) {
+			struct extent_buffer *eb;
+
+			eb = btrfs_root_node(check_root);
+			/* if leaf is the root, then it's fine */
+			if (leaf != eb) {
+				generic_err(check_root, leaf, 0,
+		"invalid nritems, have %u should not be 0 for non-root leaf",
+					nritems);
+				free_extent_buffer(eb);
+				return -EUCLEAN;
+			}
+			free_extent_buffer(eb);
+		}
+		return 0;
+	}
+
+	if (nritems == 0)
+		return 0;
+
+	/*
+	 * Check the following things to make sure this is a good leaf, and
+	 * leaf users won't need to bother with similar sanity checks:
+	 *
+	 * 1) key ordering
+	 * 2) item offset and size
+	 *    No overlap, no hole, all inside the leaf.
+	 * 3) item content
+	 *    If possible, do comprehensive sanity check.
+	 *    NOTE: All checks must only rely on the item data itself.
+	 */
+	for (slot = 0; slot < nritems; slot++) {
+		u32 item_end_expected;
+		int ret;
+
+		btrfs_item_key_to_cpu(leaf, &key, slot);
+
+		/* Make sure the keys are in the right order */
+		if (btrfs_comp_cpu_keys(&prev_key, &key) >= 0) {
+			generic_err(root, leaf, slot,
+	"bad key order, prev (%llu %u %llu) current (%llu %u %llu)",
+				prev_key.objectid, prev_key.type,
+				prev_key.offset, key.objectid, key.type,
+				key.offset);
+			return -EUCLEAN;
+		}
+
+		/*
+		 * Make sure the offset and ends are right, remember that the
+		 * item data starts at the end of the leaf and grows towards the
+		 * front.
+		 */
+		if (slot == 0)
+			item_end_expected = BTRFS_LEAF_DATA_SIZE(fs_info);
+		else
+			item_end_expected = btrfs_item_offset_nr(leaf,
+								 slot - 1);
+		if (btrfs_item_end_nr(leaf, slot) != item_end_expected) {
+			generic_err(root, leaf, slot,
+				"unexpected item end, have %u expect %u",
+				btrfs_item_end_nr(leaf, slot),
+				item_end_expected);
+			return -EUCLEAN;
+		}
+
+		/*
+		 * Check to make sure that we don't point outside of the leaf,
+		 * just in case all the items are consistent to each other, but
+		 * all point outside of the leaf.
+		 */
+		if (btrfs_item_end_nr(leaf, slot) >
+		    BTRFS_LEAF_DATA_SIZE(fs_info)) {
+			generic_err(root, leaf, slot,
+			"slot end outside of leaf, have %u expect range [0, %u]",
+				btrfs_item_end_nr(leaf, slot),
+				BTRFS_LEAF_DATA_SIZE(fs_info));
+			return -EUCLEAN;
+		}
+
+		/* Also check if the item pointer overlaps with btrfs item. */
+		if (btrfs_item_nr_offset(slot) + sizeof(struct btrfs_item) >
+		    btrfs_item_ptr_offset(leaf, slot)) {
+			generic_err(root, leaf, slot,
+		"slot overlaps with its data, item end %lu data start %lu",
+				btrfs_item_nr_offset(slot) +
+				sizeof(struct btrfs_item),
+				btrfs_item_ptr_offset(leaf, slot));
+			return -EUCLEAN;
+		}
+
+		/* Check if the item size and content meet other criteria */
+		ret = check_leaf_item(root, leaf, &key, slot);
+		if (ret < 0)
+			return ret;
+
+		prev_key.objectid = key.objectid;
+		prev_key.type = key.type;
+		prev_key.offset = key.offset;
+	}
+
+	return 0;
+}
+
+int btrfs_check_node(struct btrfs_root *root, struct extent_buffer *node)
+{
+	unsigned long nr = btrfs_header_nritems(node);
+	struct btrfs_key key, next_key;
+	int slot;
+	u64 bytenr;
+	int ret = 0;
+
+	if (nr == 0 || nr > BTRFS_NODEPTRS_PER_BLOCK(root->fs_info)) {
+		btrfs_crit(root->fs_info,
+"corrupt node: root=%llu block=%llu, nritems too %s, have %lu expect range [1,%u]",
+			   root->objectid, node->start,
+			   nr == 0 ? "small" : "large", nr,
+			   BTRFS_NODEPTRS_PER_BLOCK(root->fs_info));
+		return -EUCLEAN;
+	}
+
+	for (slot = 0; slot < nr - 1; slot++) {
+		bytenr = btrfs_node_blockptr(node, slot);
+		btrfs_node_key_to_cpu(node, &key, slot);
+		btrfs_node_key_to_cpu(node, &next_key, slot + 1);
+
+		if (!bytenr) {
+			generic_err(root, node, slot,
+				"invalid NULL node pointer");
+			ret = -EUCLEAN;
+			goto out;
+		}
+		if (!IS_ALIGNED(bytenr, root->fs_info->sectorsize)) {
+			generic_err(root, node, slot,
+			"unaligned pointer, have %llu should be aligned to %u",
+				bytenr, root->fs_info->sectorsize);
+			ret = -EUCLEAN;
+			goto out;
+		}
+
+		if (btrfs_comp_cpu_keys(&key, &next_key) >= 0) {
+			generic_err(root, node, slot,
+	"bad key order, current (%llu %u %llu) next (%llu %u %llu)",
+				key.objectid, key.type, key.offset,
+				next_key.objectid, next_key.type,
+				next_key.offset);
+			ret = -EUCLEAN;
+			goto out;
+		}
+	}
+out:
+	return ret;
+}
diff --git a/fs/btrfs/tree-checker.h b/fs/btrfs/tree-checker.h
new file mode 100644
index 000000000000..96c486e95d70
--- /dev/null
+++ b/fs/btrfs/tree-checker.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) Qu Wenruo 2017.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program.
+ */
+
+#ifndef __BTRFS_TREE_CHECKER__
+#define __BTRFS_TREE_CHECKER__
+
+#include "ctree.h"
+#include "extent_io.h"
+
+int btrfs_check_leaf(struct btrfs_root *root, struct extent_buffer *leaf);
+int btrfs_check_node(struct btrfs_root *root, struct extent_buffer *node);
+
+#endif
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index ad7f4bab640b..aa7c71cff575 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -717,7 +717,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
 			ret = btrfs_lookup_data_extent(fs_info, ins.objectid,
 						ins.offset);
 			if (ret == 0) {
-				ret = btrfs_inc_extent_ref(trans, fs_info,
+				ret = btrfs_inc_extent_ref(trans, root,
 						ins.objectid, ins.offset,
 						0, root->root_key.objectid,
 						key->objectid, offset);
@@ -2699,34 +2699,36 @@ static void wait_log_commit(struct btrfs_root *root, int transid)
 	 * so we know that if ours is more than 2 older than the
 	 * current transaction, we're done
 	 */
-	do {
+	for (;;) {
 		prepare_to_wait(&root->log_commit_wait[index],
 				&wait, TASK_UNINTERRUPTIBLE);
-		mutex_unlock(&root->log_mutex);
 
-		if (root->log_transid_committed < transid &&
-		    atomic_read(&root->log_commit[index]))
-			schedule();
+		if (!(root->log_transid_committed < transid &&
+		      atomic_read(&root->log_commit[index])))
+			break;
 
-		finish_wait(&root->log_commit_wait[index], &wait);
+		mutex_unlock(&root->log_mutex);
+		schedule();
 		mutex_lock(&root->log_mutex);
-	} while (root->log_transid_committed < transid &&
-		 atomic_read(&root->log_commit[index]));
+	}
+	finish_wait(&root->log_commit_wait[index], &wait);
 }
 
 static void wait_for_writer(struct btrfs_root *root)
 {
 	DEFINE_WAIT(wait);
 
-	while (atomic_read(&root->log_writers)) {
-		prepare_to_wait(&root->log_writer_wait,
-				&wait, TASK_UNINTERRUPTIBLE);
+	for (;;) {
+		prepare_to_wait(&root->log_writer_wait, &wait,
+				TASK_UNINTERRUPTIBLE);
+		if (!atomic_read(&root->log_writers))
+			break;
+
 		mutex_unlock(&root->log_mutex);
-		if (atomic_read(&root->log_writers))
-			schedule();
-		finish_wait(&root->log_writer_wait, &wait);
+		schedule();
 		mutex_lock(&root->log_mutex);
 	}
+	finish_wait(&root->log_writer_wait, &wait);
 }
 
 static inline void btrfs_remove_log_ctx(struct btrfs_root *root,
@@ -4181,6 +4183,7 @@ static int btrfs_log_changed_extents(struct btrfs_trans_handle *trans,
 	struct extent_map *em, *n;
 	struct list_head extents;
 	struct extent_map_tree *tree = &inode->extent_tree;
+	u64 logged_start, logged_end;
 	u64 test_gen;
 	int ret = 0;
 	int num = 0;
@@ -4190,10 +4193,11 @@ static int btrfs_log_changed_extents(struct btrfs_trans_handle *trans,
 	down_write(&inode->dio_sem);
 	write_lock(&tree->lock);
 	test_gen = root->fs_info->last_trans_committed;
+	logged_start = start;
+	logged_end = end;
 
 	list_for_each_entry_safe(em, n, &tree->modified_extents, list) {
 		list_del_init(&em->list);
-
 		/*
 		 * Just an arbitrary number, this can be really CPU intensive
 		 * once we start getting a lot of extents, and really once we
@@ -4208,6 +4212,12 @@ static int btrfs_log_changed_extents(struct btrfs_trans_handle *trans,
 
 		if (em->generation <= test_gen)
 			continue;
+
+		if (em->start < logged_start)
+			logged_start = em->start;
+		if ((em->start + em->len - 1) > logged_end)
+			logged_end = em->start + em->len - 1;
+
 		/* Need a ref to keep it from getting evicted from cache */
 		refcount_inc(&em->refs);
 		set_bit(EXTENT_FLAG_LOGGING, &em->flags);
@@ -4216,7 +4226,7 @@ static int btrfs_log_changed_extents(struct btrfs_trans_handle *trans,
 	}
 
 	list_sort(NULL, &extents, extent_cmp);
-	btrfs_get_logged_extents(inode, logged_list, start, end);
+	btrfs_get_logged_extents(inode, logged_list, logged_start, logged_end);
 	/*
 	 * Some ordered extents started by fsync might have completed
 	 * before we could collect them into the list logged_list, which
@@ -4637,7 +4647,6 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
 	struct btrfs_key min_key;
 	struct btrfs_key max_key;
 	struct btrfs_root *log = root->log_root;
-	struct extent_buffer *src = NULL;
 	LIST_HEAD(logged_list);
 	u64 last_extent = 0;
 	int err = 0;
@@ -4880,7 +4889,6 @@ again:
 			goto next_slot;
 		}
 
-		src = path->nodes[0];
 		if (ins_nr && ins_start_slot + ins_nr == path->slots[0]) {
 			ins_nr++;
 			goto next_slot;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index c188256a367c..f1ecb938ba4d 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -360,7 +360,6 @@ static noinline void run_scheduled_bios(struct btrfs_device *device)
 	int again = 0;
 	unsigned long num_run;
 	unsigned long batch_run = 0;
-	unsigned long limit;
 	unsigned long last_waited = 0;
 	int force_reg = 0;
 	int sync_pending = 0;
@@ -375,8 +374,6 @@ static noinline void run_scheduled_bios(struct btrfs_device *device)
 	blk_start_plug(&plug);
 
 	bdi = device->bdev->bd_bdi;
-	limit = btrfs_async_submit_limit(fs_info);
-	limit = limit * 2 / 3;
 
 loop:
 	spin_lock(&device->io_lock);
@@ -443,13 +440,6 @@ loop_lock:
 		pending = pending->bi_next;
 		cur->bi_next = NULL;
 
-		/*
-		 * atomic_dec_return implies a barrier for waitqueue_active
-		 */
-		if (atomic_dec_return(&fs_info->nr_async_bios) < limit &&
-		    waitqueue_active(&fs_info->async_submit_wait))
-			wake_up(&fs_info->async_submit_wait);
-
 		BUG_ON(atomic_read(&cur->__bi_cnt) == 0);
 
 		/*
@@ -517,12 +507,6 @@ loop_lock:
 					 &device->work);
 			goto done;
 		}
-		/* unplug every 64 requests just for good measure */
-		if (batch_run % 64 == 0) {
-			blk_finish_plug(&plug);
-			blk_start_plug(&plug);
-			sync_pending = 0;
-		}
 	}
 
 	cond_resched();
@@ -547,7 +531,7 @@ static void pending_bios_fn(struct btrfs_work *work)
 }
 
 
-void btrfs_free_stale_device(struct btrfs_device *cur_dev)
+static void btrfs_free_stale_device(struct btrfs_device *cur_dev)
 {
 	struct btrfs_fs_devices *fs_devs;
 	struct btrfs_device *dev;
@@ -1068,14 +1052,15 @@ int btrfs_open_devices(struct btrfs_fs_devices *fs_devices,
 	return ret;
 }
 
-void btrfs_release_disk_super(struct page *page)
+static void btrfs_release_disk_super(struct page *page)
 {
 	kunmap(page);
 	put_page(page);
 }
 
-int btrfs_read_disk_super(struct block_device *bdev, u64 bytenr,
-		struct page **page, struct btrfs_super_block **disk_super)
+static int btrfs_read_disk_super(struct block_device *bdev, u64 bytenr,
+				 struct page **page,
+				 struct btrfs_super_block **disk_super)
 {
 	void *p;
 	pgoff_t index;
@@ -1817,8 +1802,8 @@ static int btrfs_check_raid_min_devices(struct btrfs_fs_info *fs_info,
 	return 0;
 }
 
-struct btrfs_device *btrfs_find_next_active_device(struct btrfs_fs_devices *fs_devs,
-					struct btrfs_device *device)
+static struct btrfs_device * btrfs_find_next_active_device(
+		struct btrfs_fs_devices *fs_devs, struct btrfs_device *device)
 {
 	struct btrfs_device *next_device;
 
@@ -2031,19 +2016,20 @@ void btrfs_rm_dev_replace_free_srcdev(struct btrfs_fs_info *fs_info,
 	}
 
 	btrfs_close_bdev(srcdev);
-
 	call_rcu(&srcdev->rcu, free_device);
 
-	/*
-	 * unless fs_devices is seed fs, num_devices shouldn't go
-	 * zero
-	 */
-	BUG_ON(!fs_devices->num_devices && !fs_devices->seeding);
-
 	/* if this is no devs we rather delete the fs_devices */
 	if (!fs_devices->num_devices) {
 		struct btrfs_fs_devices *tmp_fs_devices;
 
+		/*
+		 * On a mounted FS, num_devices can't be zero unless it's a
+		 * seed. In case of a seed device being replaced, the replace
+		 * target added to the sprout FS, so there will be no more
+		 * device left under the seed FS.
+		 */
+		ASSERT(fs_devices->seeding);
+
 		tmp_fs_devices = fs_info->fs_devices;
 		while (tmp_fs_devices) {
 			if (tmp_fs_devices->seed == fs_devices) {
@@ -2323,8 +2309,9 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	u64 tmp;
 	int seeding_dev = 0;
 	int ret = 0;
+	bool unlocked = false;
 
-	if ((sb->s_flags & MS_RDONLY) && !fs_info->fs_devices->seeding)
+	if (sb_rdonly(sb) && !fs_info->fs_devices->seeding)
 		return -EROFS;
 
 	bdev = blkdev_get_by_path(device_path, FMODE_WRITE | FMODE_EXCL,
@@ -2399,7 +2386,10 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	if (seeding_dev) {
 		sb->s_flags &= ~MS_RDONLY;
 		ret = btrfs_prepare_sprout(fs_info);
-		BUG_ON(ret); /* -ENOMEM */
+		if (ret) {
+			btrfs_abort_transaction(trans, ret);
+			goto error_trans;
+		}
 	}
 
 	device->fs_devices = fs_info->fs_devices;
@@ -2445,14 +2435,14 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 		mutex_unlock(&fs_info->chunk_mutex);
 		if (ret) {
 			btrfs_abort_transaction(trans, ret);
-			goto error_trans;
+			goto error_sysfs;
 		}
 	}
 
 	ret = btrfs_add_device(trans, fs_info, device);
 	if (ret) {
 		btrfs_abort_transaction(trans, ret);
-		goto error_trans;
+		goto error_sysfs;
 	}
 
 	if (seeding_dev) {
@@ -2461,7 +2451,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 		ret = btrfs_finish_sprout(trans, fs_info);
 		if (ret) {
 			btrfs_abort_transaction(trans, ret);
-			goto error_trans;
+			goto error_sysfs;
 		}
 
 		/* Sprouting would change fsid of the mounted root,
@@ -2479,6 +2469,7 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	if (seeding_dev) {
 		mutex_unlock(&uuid_mutex);
 		up_write(&sb->s_umount);
+		unlocked = true;
 
 		if (ret) /* transaction commit */
 			return ret;
@@ -2491,7 +2482,9 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 		if (IS_ERR(trans)) {
 			if (PTR_ERR(trans) == -ENOENT)
 				return 0;
-			return PTR_ERR(trans);
+			ret = PTR_ERR(trans);
+			trans = NULL;
+			goto error_sysfs;
 		}
 		ret = btrfs_commit_transaction(trans);
 	}
@@ -2500,14 +2493,18 @@ int btrfs_init_new_device(struct btrfs_fs_info *fs_info, const char *device_path
 	update_dev_time(device_path);
 	return ret;
 
+error_sysfs:
+	btrfs_sysfs_rm_device_link(fs_info->fs_devices, device);
 error_trans:
-	btrfs_end_transaction(trans);
+	if (seeding_dev)
+		sb->s_flags |= MS_RDONLY;
+	if (trans)
+		btrfs_end_transaction(trans);
 	rcu_string_free(device->name);
-	btrfs_sysfs_rm_device_link(fs_info->fs_devices, device);
 	kfree(device);
 error:
 	blkdev_put(bdev, FMODE_EXCL);
-	if (seeding_dev) {
+	if (seeding_dev && !unlocked) {
 		mutex_unlock(&uuid_mutex);
 		up_write(&sb->s_umount);
 	}
@@ -4053,7 +4050,7 @@ int btrfs_pause_balance(struct btrfs_fs_info *fs_info)
 
 int btrfs_cancel_balance(struct btrfs_fs_info *fs_info)
 {
-	if (fs_info->sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(fs_info->sb))
 		return -EROFS;
 
 	mutex_lock(&fs_info->balance_mutex);
@@ -4813,16 +4810,16 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
 	em_tree = &info->mapping_tree.map_tree;
 	write_lock(&em_tree->lock);
 	ret = add_extent_mapping(em_tree, em, 0);
-	if (!ret) {
-		list_add_tail(&em->list, &trans->transaction->pending_chunks);
-		refcount_inc(&em->refs);
-	}
-	write_unlock(&em_tree->lock);
 	if (ret) {
+		write_unlock(&em_tree->lock);
 		free_extent_map(em);
 		goto error;
 	}
 
+	list_add_tail(&em->list, &trans->transaction->pending_chunks);
+	refcount_inc(&em->refs);
+	write_unlock(&em_tree->lock);
+
 	ret = btrfs_make_block_group(trans, info, 0, type, start, num_bytes);
 	if (ret)
 		goto error_del_extent;
@@ -5695,10 +5692,10 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info,
 	if (map->type & BTRFS_BLOCK_GROUP_RAID0) {
 		stripe_nr = div_u64_rem(stripe_nr, map->num_stripes,
 				&stripe_index);
-		if (op != BTRFS_MAP_WRITE && op != BTRFS_MAP_GET_READ_MIRRORS)
+		if (!need_full_stripe(op))
 			mirror_num = 1;
 	} else if (map->type & BTRFS_BLOCK_GROUP_RAID1) {
-		if (op == BTRFS_MAP_WRITE || op == BTRFS_MAP_GET_READ_MIRRORS)
+		if (need_full_stripe(op))
 			num_stripes = map->num_stripes;
 		else if (mirror_num)
 			stripe_index = mirror_num - 1;
@@ -5711,7 +5708,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info,
 		}
 
 	} else if (map->type & BTRFS_BLOCK_GROUP_DUP) {
-		if (op == BTRFS_MAP_WRITE || op == BTRFS_MAP_GET_READ_MIRRORS) {
+		if (need_full_stripe(op)) {
 			num_stripes = map->num_stripes;
 		} else if (mirror_num) {
 			stripe_index = mirror_num - 1;
@@ -5725,7 +5722,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info,
 		stripe_nr = div_u64_rem(stripe_nr, factor, &stripe_index);
 		stripe_index *= map->sub_stripes;
 
-		if (op == BTRFS_MAP_WRITE || op == BTRFS_MAP_GET_READ_MIRRORS)
+		if (need_full_stripe(op))
 			num_stripes = map->sub_stripes;
 		else if (mirror_num)
 			stripe_index += mirror_num - 1;
@@ -5740,9 +5737,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info,
 		}
 
 	} else if (map->type & BTRFS_BLOCK_GROUP_RAID56_MASK) {
-		if (need_raid_map &&
-		    (op == BTRFS_MAP_WRITE || op == BTRFS_MAP_GET_READ_MIRRORS ||
-		     mirror_num > 1)) {
+		if (need_raid_map && (need_full_stripe(op) || mirror_num > 1)) {
 			/* push stripe_nr back to the start of the full stripe */
 			stripe_nr = div64_u64(raid56_full_stripe_start,
 					stripe_len * nr_data_stripes(map));
@@ -5769,9 +5764,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info,
 			/* We distribute the parity blocks across stripes */
 			div_u64_rem(stripe_nr + stripe_index, map->num_stripes,
 					&stripe_index);
-			if ((op != BTRFS_MAP_WRITE &&
-			     op != BTRFS_MAP_GET_READ_MIRRORS) &&
-			    mirror_num <= 1)
+			if (!need_full_stripe(op) && mirror_num <= 1)
 				mirror_num = 1;
 		}
 	} else {
@@ -6033,7 +6026,7 @@ static void btrfs_end_bio(struct bio *bio)
 			 * this bio is actually up to date, we didn't
 			 * go over the max number of errors
 			 */
-			bio->bi_status = 0;
+			bio->bi_status = BLK_STS_OK;
 		}
 
 		btrfs_end_bbio(bbio, bio);
@@ -6069,13 +6062,6 @@ static noinline void btrfs_schedule_bio(struct btrfs_device *device,
 		return;
 	}
 
-	/*
-	 * nr_async_bios allows us to reliably return congestion to the
-	 * higher layers.  Otherwise, the async bio makes it appear we have
-	 * made progress against dirty pages when we've really just put it
-	 * on a queue for later
-	 */
-	atomic_inc(&fs_info->nr_async_bios);
 	WARN_ON(bio->bi_next);
 	bio->bi_next = NULL;
 
@@ -6144,7 +6130,10 @@ static void bbio_error(struct btrfs_bio *bbio, struct bio *bio, u64 logical)
 
 		btrfs_io_bio(bio)->mirror_num = bbio->mirror_num;
 		bio->bi_iter.bi_sector = logical >> 9;
-		bio->bi_status = BLK_STS_IOERR;
+		if (atomic_read(&bbio->error) > bbio->max_errors)
+			bio->bi_status = BLK_STS_IOERR;
+		else
+			bio->bi_status = BLK_STS_OK;
 		btrfs_end_bbio(bbio, bio);
 	}
 }
@@ -6166,7 +6155,7 @@ blk_status_t btrfs_map_bio(struct btrfs_fs_info *fs_info, struct bio *bio,
 	map_length = length;
 
 	btrfs_bio_counter_inc_blocked(fs_info);
-	ret = __btrfs_map_block(fs_info, bio_op(bio), logical,
+	ret = __btrfs_map_block(fs_info, btrfs_op(bio), logical,
 				&map_length, &bbio, mirror_num, 1);
 	if (ret) {
 		btrfs_bio_counter_dec(fs_info);
@@ -6249,7 +6238,7 @@ static struct btrfs_device *add_missing_dev(struct btrfs_fs_devices *fs_devices,
 
 	device = btrfs_alloc_device(NULL, &devid, dev_uuid);
 	if (IS_ERR(device))
-		return NULL;
+		return device;
 
 	list_add(&device->dev_list, &fs_devices->devices);
 	device->fs_devices = fs_devices;
@@ -6377,6 +6366,17 @@ static int btrfs_check_chunk_valid(struct btrfs_fs_info *fs_info,
 	return 0;
 }
 
+static void btrfs_report_missing_device(struct btrfs_fs_info *fs_info,
+					u64 devid, u8 *uuid, bool error)
+{
+	if (error)
+		btrfs_err_rl(fs_info, "devid %llu uuid %pU is missing",
+			      devid, uuid);
+	else
+		btrfs_warn_rl(fs_info, "devid %llu uuid %pU is missing",
+			      devid, uuid);
+}
+
 static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
 			  struct extent_buffer *leaf,
 			  struct btrfs_chunk *chunk)
@@ -6447,18 +6447,21 @@ static int read_one_chunk(struct btrfs_fs_info *fs_info, struct btrfs_key *key,
 		if (!map->stripes[i].dev &&
 		    !btrfs_test_opt(fs_info, DEGRADED)) {
 			free_extent_map(em);
-			btrfs_report_missing_device(fs_info, devid, uuid);
-			return -EIO;
+			btrfs_report_missing_device(fs_info, devid, uuid, true);
+			return -ENOENT;
 		}
 		if (!map->stripes[i].dev) {
 			map->stripes[i].dev =
 				add_missing_dev(fs_info->fs_devices, devid,
 						uuid);
-			if (!map->stripes[i].dev) {
+			if (IS_ERR(map->stripes[i].dev)) {
 				free_extent_map(em);
-				return -EIO;
+				btrfs_err(fs_info,
+					"failed to init missing dev %llu: %ld",
+					devid, PTR_ERR(map->stripes[i].dev));
+				return PTR_ERR(map->stripes[i].dev);
 			}
-			btrfs_report_missing_device(fs_info, devid, uuid);
+			btrfs_report_missing_device(fs_info, devid, uuid, false);
 		}
 		map->stripes[i].dev->in_fs_metadata = 1;
 	}
@@ -6577,19 +6580,28 @@ static int read_one_dev(struct btrfs_fs_info *fs_info,
 	device = btrfs_find_device(fs_info, devid, dev_uuid, fs_uuid);
 	if (!device) {
 		if (!btrfs_test_opt(fs_info, DEGRADED)) {
-			btrfs_report_missing_device(fs_info, devid, dev_uuid);
-			return -EIO;
+			btrfs_report_missing_device(fs_info, devid,
+							dev_uuid, true);
+			return -ENOENT;
 		}
 
 		device = add_missing_dev(fs_devices, devid, dev_uuid);
-		if (!device)
-			return -ENOMEM;
-		btrfs_report_missing_device(fs_info, devid, dev_uuid);
+		if (IS_ERR(device)) {
+			btrfs_err(fs_info,
+				"failed to add missing dev %llu: %ld",
+				devid, PTR_ERR(device));
+			return PTR_ERR(device);
+		}
+		btrfs_report_missing_device(fs_info, devid, dev_uuid, false);
 	} else {
 		if (!device->bdev) {
-			btrfs_report_missing_device(fs_info, devid, dev_uuid);
-			if (!btrfs_test_opt(fs_info, DEGRADED))
-				return -EIO;
+			if (!btrfs_test_opt(fs_info, DEGRADED)) {
+				btrfs_report_missing_device(fs_info,
+						devid, dev_uuid, true);
+				return -ENOENT;
+			}
+			btrfs_report_missing_device(fs_info, devid,
+							dev_uuid, false);
 		}
 
 		if(!device->bdev && !device->missing) {
@@ -6756,12 +6768,6 @@ out_short_read:
 	return -EIO;
 }
 
-void btrfs_report_missing_device(struct btrfs_fs_info *fs_info, u64 devid,
-				 u8 *uuid)
-{
-	btrfs_warn_rl(fs_info, "devid %llu uuid %pU is missing", devid, uuid);
-}
-
 /*
  * Check if all chunks in the fs are OK for read-write degraded mount
  *
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 6108fdfec67f..ff15208344a7 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -542,7 +542,5 @@ void btrfs_set_fs_info_ptr(struct btrfs_fs_info *fs_info);
 void btrfs_reset_fs_info_ptr(struct btrfs_fs_info *fs_info);
 
 bool btrfs_check_rw_degradable(struct btrfs_fs_info *fs_info);
-void btrfs_report_missing_device(struct btrfs_fs_info *fs_info, u64 devid,
-				 u8 *uuid);
 
 #endif
diff --git a/fs/btrfs/zlib.c b/fs/btrfs/zlib.c
index c248f9286366..2b52950dc2c6 100644
--- a/fs/btrfs/zlib.c
+++ b/fs/btrfs/zlib.c
@@ -37,6 +37,7 @@ struct workspace {
 	z_stream strm;
 	char *buf;
 	struct list_head list;
+	int level;
 };
 
 static void zlib_free_workspace(struct list_head *ws)
@@ -96,7 +97,7 @@ static int zlib_compress_pages(struct list_head *ws,
 	*total_out = 0;
 	*total_in = 0;
 
-	if (Z_OK != zlib_deflateInit(&workspace->strm, 3)) {
+	if (Z_OK != zlib_deflateInit(&workspace->strm, workspace->level)) {
 		pr_warn("BTRFS: deflateInit failed\n");
 		ret = -EIO;
 		goto out;
@@ -402,10 +403,22 @@ next:
 	return ret;
 }
 
+static void zlib_set_level(struct list_head *ws, unsigned int type)
+{
+	struct workspace *workspace = list_entry(ws, struct workspace, list);
+	unsigned level = (type & 0xF0) >> 4;
+
+	if (level > 9)
+		level = 9;
+
+	workspace->level = level > 0 ? level : 3;
+}
+
 const struct btrfs_compress_op btrfs_zlib_compress = {
 	.alloc_workspace	= zlib_alloc_workspace,
 	.free_workspace		= zlib_free_workspace,
 	.compress_pages		= zlib_compress_pages,
 	.decompress_bio		= zlib_decompress_bio,
 	.decompress		= zlib_decompress,
+	.set_level              = zlib_set_level,
 };
diff --git a/fs/btrfs/zstd.c b/fs/btrfs/zstd.c
new file mode 100644
index 000000000000..17f2dd8fddb8
--- /dev/null
+++ b/fs/btrfs/zstd.c
@@ -0,0 +1,437 @@
+/*
+ * Copyright (c) 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+#include <linux/bio.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/refcount.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/zstd.h>
+#include "compression.h"
+
+#define ZSTD_BTRFS_MAX_WINDOWLOG 17
+#define ZSTD_BTRFS_MAX_INPUT (1 << ZSTD_BTRFS_MAX_WINDOWLOG)
+#define ZSTD_BTRFS_DEFAULT_LEVEL 3
+
+static ZSTD_parameters zstd_get_btrfs_parameters(size_t src_len)
+{
+	ZSTD_parameters params = ZSTD_getParams(ZSTD_BTRFS_DEFAULT_LEVEL,
+						src_len, 0);
+
+	if (params.cParams.windowLog > ZSTD_BTRFS_MAX_WINDOWLOG)
+		params.cParams.windowLog = ZSTD_BTRFS_MAX_WINDOWLOG;
+	WARN_ON(src_len > ZSTD_BTRFS_MAX_INPUT);
+	return params;
+}
+
+struct workspace {
+	void *mem;
+	size_t size;
+	char *buf;
+	struct list_head list;
+};
+
+static void zstd_free_workspace(struct list_head *ws)
+{
+	struct workspace *workspace = list_entry(ws, struct workspace, list);
+
+	kvfree(workspace->mem);
+	kfree(workspace->buf);
+	kfree(workspace);
+}
+
+static struct list_head *zstd_alloc_workspace(void)
+{
+	ZSTD_parameters params =
+			zstd_get_btrfs_parameters(ZSTD_BTRFS_MAX_INPUT);
+	struct workspace *workspace;
+
+	workspace = kzalloc(sizeof(*workspace), GFP_KERNEL);
+	if (!workspace)
+		return ERR_PTR(-ENOMEM);
+
+	workspace->size = max_t(size_t,
+			ZSTD_CStreamWorkspaceBound(params.cParams),
+			ZSTD_DStreamWorkspaceBound(ZSTD_BTRFS_MAX_INPUT));
+	workspace->mem = kvmalloc(workspace->size, GFP_KERNEL);
+	workspace->buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!workspace->mem || !workspace->buf)
+		goto fail;
+
+	INIT_LIST_HEAD(&workspace->list);
+
+	return &workspace->list;
+fail:
+	zstd_free_workspace(&workspace->list);
+	return ERR_PTR(-ENOMEM);
+}
+
+static int zstd_compress_pages(struct list_head *ws,
+		struct address_space *mapping,
+		u64 start,
+		struct page **pages,
+		unsigned long *out_pages,
+		unsigned long *total_in,
+		unsigned long *total_out)
+{
+	struct workspace *workspace = list_entry(ws, struct workspace, list);
+	ZSTD_CStream *stream;
+	int ret = 0;
+	int nr_pages = 0;
+	struct page *in_page = NULL;  /* The current page to read */
+	struct page *out_page = NULL; /* The current page to write to */
+	ZSTD_inBuffer in_buf = { NULL, 0, 0 };
+	ZSTD_outBuffer out_buf = { NULL, 0, 0 };
+	unsigned long tot_in = 0;
+	unsigned long tot_out = 0;
+	unsigned long len = *total_out;
+	const unsigned long nr_dest_pages = *out_pages;
+	unsigned long max_out = nr_dest_pages * PAGE_SIZE;
+	ZSTD_parameters params = zstd_get_btrfs_parameters(len);
+
+	*out_pages = 0;
+	*total_out = 0;
+	*total_in = 0;
+
+	/* Initialize the stream */
+	stream = ZSTD_initCStream(params, len, workspace->mem,
+			workspace->size);
+	if (!stream) {
+		pr_warn("BTRFS: ZSTD_initCStream failed\n");
+		ret = -EIO;
+		goto out;
+	}
+
+	/* map in the first page of input data */
+	in_page = find_get_page(mapping, start >> PAGE_SHIFT);
+	in_buf.src = kmap(in_page);
+	in_buf.pos = 0;
+	in_buf.size = min_t(size_t, len, PAGE_SIZE);
+
+
+	/* Allocate and map in the output buffer */
+	out_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
+	if (out_page == NULL) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	pages[nr_pages++] = out_page;
+	out_buf.dst = kmap(out_page);
+	out_buf.pos = 0;
+	out_buf.size = min_t(size_t, max_out, PAGE_SIZE);
+
+	while (1) {
+		size_t ret2;
+
+		ret2 = ZSTD_compressStream(stream, &out_buf, &in_buf);
+		if (ZSTD_isError(ret2)) {
+			pr_debug("BTRFS: ZSTD_compressStream returned %d\n",
+					ZSTD_getErrorCode(ret2));
+			ret = -EIO;
+			goto out;
+		}
+
+		/* Check to see if we are making it bigger */
+		if (tot_in + in_buf.pos > 8192 &&
+				tot_in + in_buf.pos <
+				tot_out + out_buf.pos) {
+			ret = -E2BIG;
+			goto out;
+		}
+
+		/* We've reached the end of our output range */
+		if (out_buf.pos >= max_out) {
+			tot_out += out_buf.pos;
+			ret = -E2BIG;
+			goto out;
+		}
+
+		/* Check if we need more output space */
+		if (out_buf.pos == out_buf.size) {
+			tot_out += PAGE_SIZE;
+			max_out -= PAGE_SIZE;
+			kunmap(out_page);
+			if (nr_pages == nr_dest_pages) {
+				out_page = NULL;
+				ret = -E2BIG;
+				goto out;
+			}
+			out_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
+			if (out_page == NULL) {
+				ret = -ENOMEM;
+				goto out;
+			}
+			pages[nr_pages++] = out_page;
+			out_buf.dst = kmap(out_page);
+			out_buf.pos = 0;
+			out_buf.size = min_t(size_t, max_out, PAGE_SIZE);
+		}
+
+		/* We've reached the end of the input */
+		if (in_buf.pos >= len) {
+			tot_in += in_buf.pos;
+			break;
+		}
+
+		/* Check if we need more input */
+		if (in_buf.pos == in_buf.size) {
+			tot_in += PAGE_SIZE;
+			kunmap(in_page);
+			put_page(in_page);
+
+			start += PAGE_SIZE;
+			len -= PAGE_SIZE;
+			in_page = find_get_page(mapping, start >> PAGE_SHIFT);
+			in_buf.src = kmap(in_page);
+			in_buf.pos = 0;
+			in_buf.size = min_t(size_t, len, PAGE_SIZE);
+		}
+	}
+	while (1) {
+		size_t ret2;
+
+		ret2 = ZSTD_endStream(stream, &out_buf);
+		if (ZSTD_isError(ret2)) {
+			pr_debug("BTRFS: ZSTD_endStream returned %d\n",
+					ZSTD_getErrorCode(ret2));
+			ret = -EIO;
+			goto out;
+		}
+		if (ret2 == 0) {
+			tot_out += out_buf.pos;
+			break;
+		}
+		if (out_buf.pos >= max_out) {
+			tot_out += out_buf.pos;
+			ret = -E2BIG;
+			goto out;
+		}
+
+		tot_out += PAGE_SIZE;
+		max_out -= PAGE_SIZE;
+		kunmap(out_page);
+		if (nr_pages == nr_dest_pages) {
+			out_page = NULL;
+			ret = -E2BIG;
+			goto out;
+		}
+		out_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
+		if (out_page == NULL) {
+			ret = -ENOMEM;
+			goto out;
+		}
+		pages[nr_pages++] = out_page;
+		out_buf.dst = kmap(out_page);
+		out_buf.pos = 0;
+		out_buf.size = min_t(size_t, max_out, PAGE_SIZE);
+	}
+
+	if (tot_out >= tot_in) {
+		ret = -E2BIG;
+		goto out;
+	}
+
+	ret = 0;
+	*total_in = tot_in;
+	*total_out = tot_out;
+out:
+	*out_pages = nr_pages;
+	/* Cleanup */
+	if (in_page) {
+		kunmap(in_page);
+		put_page(in_page);
+	}
+	if (out_page)
+		kunmap(out_page);
+	return ret;
+}
+
+static int zstd_decompress_bio(struct list_head *ws, struct compressed_bio *cb)
+{
+	struct workspace *workspace = list_entry(ws, struct workspace, list);
+	struct page **pages_in = cb->compressed_pages;
+	u64 disk_start = cb->start;
+	struct bio *orig_bio = cb->orig_bio;
+	size_t srclen = cb->compressed_len;
+	ZSTD_DStream *stream;
+	int ret = 0;
+	unsigned long page_in_index = 0;
+	unsigned long total_pages_in = DIV_ROUND_UP(srclen, PAGE_SIZE);
+	unsigned long buf_start;
+	unsigned long total_out = 0;
+	ZSTD_inBuffer in_buf = { NULL, 0, 0 };
+	ZSTD_outBuffer out_buf = { NULL, 0, 0 };
+
+	stream = ZSTD_initDStream(
+			ZSTD_BTRFS_MAX_INPUT, workspace->mem, workspace->size);
+	if (!stream) {
+		pr_debug("BTRFS: ZSTD_initDStream failed\n");
+		ret = -EIO;
+		goto done;
+	}
+
+	in_buf.src = kmap(pages_in[page_in_index]);
+	in_buf.pos = 0;
+	in_buf.size = min_t(size_t, srclen, PAGE_SIZE);
+
+	out_buf.dst = workspace->buf;
+	out_buf.pos = 0;
+	out_buf.size = PAGE_SIZE;
+
+	while (1) {
+		size_t ret2;
+
+		ret2 = ZSTD_decompressStream(stream, &out_buf, &in_buf);
+		if (ZSTD_isError(ret2)) {
+			pr_debug("BTRFS: ZSTD_decompressStream returned %d\n",
+					ZSTD_getErrorCode(ret2));
+			ret = -EIO;
+			goto done;
+		}
+		buf_start = total_out;
+		total_out += out_buf.pos;
+		out_buf.pos = 0;
+
+		ret = btrfs_decompress_buf2page(out_buf.dst, buf_start,
+				total_out, disk_start, orig_bio);
+		if (ret == 0)
+			break;
+
+		if (in_buf.pos >= srclen)
+			break;
+
+		/* Check if we've hit the end of a frame */
+		if (ret2 == 0)
+			break;
+
+		if (in_buf.pos == in_buf.size) {
+			kunmap(pages_in[page_in_index++]);
+			if (page_in_index >= total_pages_in) {
+				in_buf.src = NULL;
+				ret = -EIO;
+				goto done;
+			}
+			srclen -= PAGE_SIZE;
+			in_buf.src = kmap(pages_in[page_in_index]);
+			in_buf.pos = 0;
+			in_buf.size = min_t(size_t, srclen, PAGE_SIZE);
+		}
+	}
+	ret = 0;
+	zero_fill_bio(orig_bio);
+done:
+	if (in_buf.src)
+		kunmap(pages_in[page_in_index]);
+	return ret;
+}
+
+static int zstd_decompress(struct list_head *ws, unsigned char *data_in,
+		struct page *dest_page,
+		unsigned long start_byte,
+		size_t srclen, size_t destlen)
+{
+	struct workspace *workspace = list_entry(ws, struct workspace, list);
+	ZSTD_DStream *stream;
+	int ret = 0;
+	size_t ret2;
+	ZSTD_inBuffer in_buf = { NULL, 0, 0 };
+	ZSTD_outBuffer out_buf = { NULL, 0, 0 };
+	unsigned long total_out = 0;
+	unsigned long pg_offset = 0;
+	char *kaddr;
+
+	stream = ZSTD_initDStream(
+			ZSTD_BTRFS_MAX_INPUT, workspace->mem, workspace->size);
+	if (!stream) {
+		pr_warn("BTRFS: ZSTD_initDStream failed\n");
+		ret = -EIO;
+		goto finish;
+	}
+
+	destlen = min_t(size_t, destlen, PAGE_SIZE);
+
+	in_buf.src = data_in;
+	in_buf.pos = 0;
+	in_buf.size = srclen;
+
+	out_buf.dst = workspace->buf;
+	out_buf.pos = 0;
+	out_buf.size = PAGE_SIZE;
+
+	ret2 = 1;
+	while (pg_offset < destlen && in_buf.pos < in_buf.size) {
+		unsigned long buf_start;
+		unsigned long buf_offset;
+		unsigned long bytes;
+
+		/* Check if the frame is over and we still need more input */
+		if (ret2 == 0) {
+			pr_debug("BTRFS: ZSTD_decompressStream ended early\n");
+			ret = -EIO;
+			goto finish;
+		}
+		ret2 = ZSTD_decompressStream(stream, &out_buf, &in_buf);
+		if (ZSTD_isError(ret2)) {
+			pr_debug("BTRFS: ZSTD_decompressStream returned %d\n",
+					ZSTD_getErrorCode(ret2));
+			ret = -EIO;
+			goto finish;
+		}
+
+		buf_start = total_out;
+		total_out += out_buf.pos;
+		out_buf.pos = 0;
+
+		if (total_out <= start_byte)
+			continue;
+
+		if (total_out > start_byte && buf_start < start_byte)
+			buf_offset = start_byte - buf_start;
+		else
+			buf_offset = 0;
+
+		bytes = min_t(unsigned long, destlen - pg_offset,
+				out_buf.size - buf_offset);
+
+		kaddr = kmap_atomic(dest_page);
+		memcpy(kaddr + pg_offset, out_buf.dst + buf_offset, bytes);
+		kunmap_atomic(kaddr);
+
+		pg_offset += bytes;
+	}
+	ret = 0;
+finish:
+	if (pg_offset < destlen) {
+		kaddr = kmap_atomic(dest_page);
+		memset(kaddr + pg_offset, 0, destlen - pg_offset);
+		kunmap_atomic(kaddr);
+	}
+	return ret;
+}
+
+static void zstd_set_level(struct list_head *ws, unsigned int type)
+{
+}
+
+const struct btrfs_compress_op btrfs_zstd_compress = {
+	.alloc_workspace = zstd_alloc_workspace,
+	.free_workspace = zstd_free_workspace,
+	.compress_pages = zstd_compress_pages,
+	.decompress_bio = zstd_decompress_bio,
+	.decompress = zstd_decompress,
+	.set_level = zstd_set_level,
+};
diff --git a/fs/buffer.c b/fs/buffer.c
index 170df856bdb9..1c18a22a6013 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -253,27 +253,6 @@ out:
 }
 
 /*
- * Kick the writeback threads then try to free up some ZONE_NORMAL memory.
- */
-static void free_more_memory(void)
-{
-	struct zoneref *z;
-	int nid;
-
-	wakeup_flusher_threads(1024, WB_REASON_FREE_MORE_MEM);
-	yield();
-
-	for_each_online_node(nid) {
-
-		z = first_zones_zonelist(node_zonelist(nid, GFP_NOFS),
-						gfp_zone(GFP_NOFS), NULL);
-		if (z->zone)
-			try_to_free_pages(node_zonelist(nid, GFP_NOFS), 0,
-						GFP_NOFS, NULL);
-	}
-}
-
-/*
  * I/O completion handler for block_read_full_page() - pages
  * which come unlocked at the end of I/O.
  */
@@ -861,16 +840,19 @@ int remove_inode_buffers(struct inode *inode)
  * which may not fail from ordinary buffer allocations.
  */
 struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,
-		int retry)
+		bool retry)
 {
 	struct buffer_head *bh, *head;
+	gfp_t gfp = GFP_NOFS;
 	long offset;
 
-try_again:
+	if (retry)
+		gfp |= __GFP_NOFAIL;
+
 	head = NULL;
 	offset = PAGE_SIZE;
 	while ((offset -= size) >= 0) {
-		bh = alloc_buffer_head(GFP_NOFS);
+		bh = alloc_buffer_head(gfp);
 		if (!bh)
 			goto no_grow;
 
@@ -896,23 +878,7 @@ no_grow:
 		} while (head);
 	}
 
-	/*
-	 * Return failure for non-async IO requests.  Async IO requests
-	 * are not allowed to fail, so we have to wait until buffer heads
-	 * become available.  But we don't want tasks sleeping with 
-	 * partially complete buffers, so all were released above.
-	 */
-	if (!retry)
-		return NULL;
-
-	/* We're _really_ low on memory. Now we just
-	 * wait for old buffer heads to become free due to
-	 * finishing IO.  Since this is an async request and
-	 * the reserve list is empty, we're sure there are 
-	 * async buffer heads in use.
-	 */
-	free_more_memory();
-	goto try_again;
+	return NULL;
 }
 EXPORT_SYMBOL_GPL(alloc_page_buffers);
 
@@ -1001,8 +967,6 @@ grow_dev_page(struct block_device *bdev, sector_t block,
 	gfp_mask |= __GFP_NOFAIL;
 
 	page = find_or_create_page(inode->i_mapping, index, gfp_mask);
-	if (!page)
-		return ret;
 
 	BUG_ON(!PageLocked(page));
 
@@ -1021,9 +985,7 @@ grow_dev_page(struct block_device *bdev, sector_t block,
 	/*
 	 * Allocate some buffers for this page
 	 */
-	bh = alloc_page_buffers(page, size, 0);
-	if (!bh)
-		goto failed;
+	bh = alloc_page_buffers(page, size, true);
 
 	/*
 	 * Link the page to the buffers and initialise them.  Take the
@@ -1103,8 +1065,6 @@ __getblk_slow(struct block_device *bdev, sector_t block,
 		ret = grow_buffers(bdev, block, size, gfp);
 		if (ret < 0)
 			return NULL;
-		if (ret == 0)
-			free_more_memory();
 	}
 }
 
@@ -1575,7 +1535,7 @@ void create_empty_buffers(struct page *page,
 {
 	struct buffer_head *bh, *head, *tail;
 
-	head = alloc_page_buffers(page, blocksize, 1);
+	head = alloc_page_buffers(page, blocksize, true);
 	bh = head;
 	do {
 		bh->b_state |= b_state;
@@ -1692,7 +1652,8 @@ static struct buffer_head *create_page_buffers(struct page *page, struct inode *
 	BUG_ON(!PageLocked(page));
 
 	if (!page_has_buffers(page))
-		create_empty_buffers(page, 1 << ACCESS_ONCE(inode->i_blkbits), b_state);
+		create_empty_buffers(page, 1 << READ_ONCE(inode->i_blkbits),
+				     b_state);
 	return page_buffers(page);
 }
 
@@ -1978,8 +1939,8 @@ iomap_to_bh(struct inode *inode, sector_t block, struct buffer_head *bh,
 	case IOMAP_MAPPED:
 		if (offset >= i_size_read(inode))
 			set_buffer_new(bh);
-		bh->b_blocknr = (iomap->blkno >> (inode->i_blkbits - 9)) +
-				((offset - iomap->offset) >> inode->i_blkbits);
+		bh->b_blocknr = (iomap->addr + offset - iomap->offset) >>
+				inode->i_blkbits;
 		set_buffer_mapped(bh);
 		break;
 	}
@@ -2638,7 +2599,7 @@ int nobh_write_begin(struct address_space *mapping,
 	 * Be careful: the buffer linked list is a NULL terminated one, rather
 	 * than the circular one we're used to.
 	 */
-	head = alloc_page_buffers(page, blocksize, 0);
+	head = alloc_page_buffers(page, blocksize, false);
 	if (!head) {
 		ret = -ENOMEM;
 		goto out_release;
@@ -3055,8 +3016,16 @@ void guard_bio_eod(int op, struct bio *bio)
 	sector_t maxsector;
 	struct bio_vec *bvec = &bio->bi_io_vec[bio->bi_vcnt - 1];
 	unsigned truncated_bytes;
+	struct hd_struct *part;
+
+	rcu_read_lock();
+	part = __disk_get_part(bio->bi_disk, bio->bi_partno);
+	if (part)
+		maxsector = part_nr_sects_read(part);
+	else
+		maxsector = get_capacity(bio->bi_disk);
+	rcu_read_unlock();
 
-	maxsector = get_capacity(bio->bi_disk);
 	if (!maxsector)
 		return;
 
diff --git a/fs/cachefiles/Makefile b/fs/cachefiles/Makefile
index 32cbab0ffce3..891dedda5905 100644
--- a/fs/cachefiles/Makefile
+++ b/fs/cachefiles/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for caching in a mounted filesystem
 #
diff --git a/fs/cachefiles/bind.c b/fs/cachefiles/bind.c
index 3ff867f87d73..d9f001078e08 100644
--- a/fs/cachefiles/bind.c
+++ b/fs/cachefiles/bind.c
@@ -133,7 +133,7 @@ static int cachefiles_daemon_add_cache(struct cachefiles_cache *cache)
 		goto error_unsupported;
 
 	ret = -EROFS;
-	if (root->d_sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(root->d_sb))
 		goto error_unsupported;
 
 	/* determine the security of the on-disk cache as this governs
diff --git a/fs/ceph/Makefile b/fs/ceph/Makefile
index 85a4230b9bff..174f5709e508 100644
--- a/fs/ceph/Makefile
+++ b/fs/ceph/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for CEPH filesystem.
 #
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index b3e3edc09d80..4d622654bfbc 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/backing-dev.h>
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 157fe59fbabe..ff5d32cf9578 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/fs.h>
@@ -1991,6 +1992,7 @@ static int try_flush_caps(struct inode *inode, u64 *ptid)
 retry:
 	spin_lock(&ci->i_ceph_lock);
 	if (ci->i_ceph_flags & CEPH_I_NOFLUSH) {
+		spin_unlock(&ci->i_ceph_lock);
 		dout("try_flush_caps skipping %p I_NOFLUSH set\n", inode);
 		goto out;
 	}
@@ -2008,8 +2010,10 @@ retry:
 			mutex_lock(&session->s_mutex);
 			goto retry;
 		}
-		if (cap->session->s_state < CEPH_MDS_SESSION_OPEN)
+		if (cap->session->s_state < CEPH_MDS_SESSION_OPEN) {
+			spin_unlock(&ci->i_ceph_lock);
 			goto out;
+		}
 
 		flushing = __mark_caps_flushing(inode, session, true,
 						&flush_tid, &oldest_flush_tid);
diff --git a/fs/ceph/ceph_frag.c b/fs/ceph/ceph_frag.c
index bdce8b1fbd06..6f67d5b884a0 100644
--- a/fs/ceph/ceph_frag.c
+++ b/fs/ceph/ceph_frag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ceph 'frag' type
  */
diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c
index d635496ea189..644def813754 100644
--- a/fs/ceph/debugfs.c
+++ b/fs/ceph/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/device.h>
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 019c2036d36f..8a5266699b67 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/spinlock.h>
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index 7df550c13d7f..3c59ad180ef0 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/exportfs.h>
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index 65a6fa12c857..5c17125f45c7 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/module.h>
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 373dab5173ca..f2550a076edc 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/module.h>
diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c
index 4c9c72f26eb9..851aa69ec8f0 100644
--- a/fs/ceph/ioctl.c
+++ b/fs/ceph/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 #include <linux/in.h>
 
diff --git a/fs/ceph/ioctl.h b/fs/ceph/ioctl.h
index c77028afb1e1..51f7f1d39a94 100644
--- a/fs/ceph/ioctl.h
+++ b/fs/ceph/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_CEPH_IOCTL_H
 #define FS_CEPH_IOCTL_H
 
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index 8cd63e8123d8..e7cce412f2cf 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/file.h>
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 9dd6b836ac9e..0687ab3c3267 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/fs.h>
@@ -7,7 +8,6 @@
 #include <linux/sched.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
-#include <linux/utsname.h>
 #include <linux/ratelimit.h>
 
 #include "super.h"
@@ -735,12 +735,13 @@ static int __choose_mds(struct ceph_mds_client *mdsc,
 			inode = req->r_inode;
 			ihold(inode);
 		} else {
-			/* req->r_dentry is non-null for LSSNAP request.
-			 * fall-thru */
-			WARN_ON_ONCE(!req->r_dentry);
+			/* req->r_dentry is non-null for LSSNAP request */
+			rcu_read_lock();
+			inode = get_nonsnap_parent(req->r_dentry);
+			rcu_read_unlock();
+			dout("__choose_mds using snapdir's parent %p\n", inode);
 		}
-	}
-	if (!inode && req->r_dentry) {
+	} else if (req->r_dentry) {
 		/* ignore race with rename; old or new d_parent is okay */
 		struct dentry *parent;
 		struct inode *dir;
@@ -884,8 +885,8 @@ static struct ceph_msg *create_session_open_msg(struct ceph_mds_client *mdsc, u6
 	void *p;
 
 	const char* metadata[][2] = {
-		{"hostname", utsname()->nodename},
-		{"kernel_version", utsname()->release},
+		{"hostname", mdsc->nodename},
+		{"kernel_version", init_utsname()->release},
 		{"entity_id", opt->name ? : ""},
 		{"root", fsopt->server_path ? : "/"},
 		{NULL, NULL}
@@ -3539,6 +3540,8 @@ int ceph_mdsc_init(struct ceph_fs_client *fsc)
 	init_rwsem(&mdsc->pool_perm_rwsem);
 	mdsc->pool_perm_tree = RB_ROOT;
 
+	strncpy(mdsc->nodename, utsname()->nodename,
+		sizeof(mdsc->nodename) - 1);
 	return 0;
 }
 
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index db57ae98ed34..837ac4b087a0 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MDS_CLIENT_H
 #define _FS_CEPH_MDS_CLIENT_H
 
@@ -8,6 +9,7 @@
 #include <linux/rbtree.h>
 #include <linux/spinlock.h>
 #include <linux/refcount.h>
+#include <linux/utsname.h>
 
 #include <linux/ceph/types.h>
 #include <linux/ceph/messenger.h>
@@ -368,6 +370,8 @@ struct ceph_mds_client {
 
 	struct rw_semaphore     pool_perm_rwsem;
 	struct rb_root		pool_perm_tree;
+
+	char nodename[__NEW_UTS_LEN + 1];
 };
 
 extern const char *ceph_mds_op_name(int op);
diff --git a/fs/ceph/mdsmap.c b/fs/ceph/mdsmap.c
index 33ced4c22732..44e53abeb32a 100644
--- a/fs/ceph/mdsmap.c
+++ b/fs/ceph/mdsmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/bug.h>
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 1ffc8b426c1c..8a2ca41e4b97 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/sort.h>
@@ -374,12 +375,10 @@ static int build_snap_context(struct ceph_snap_realm *realm,
 	     realm->ino, realm, snapc, snapc->seq,
 	     (unsigned int) snapc->num_snaps);
 
-	if (realm->cached_context) {
-		ceph_put_snap_context(realm->cached_context);
-		/* queue realm for cap_snap creation */
-		list_add_tail(&realm->dirty_item, dirty_realms);
-	}
+	ceph_put_snap_context(realm->cached_context);
 	realm->cached_context = snapc;
+	/* queue realm for cap_snap creation */
+	list_add_tail(&realm->dirty_item, dirty_realms);
 	return 0;
 
 fail:
diff --git a/fs/ceph/strings.c b/fs/ceph/strings.c
index 913dea163d5c..4a79f3632260 100644
--- a/fs/ceph/strings.c
+++ b/fs/ceph/strings.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ceph fs string constants
  */
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 279a2f401cf5..3e27a28aa44a 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_SUPER_H
 #define _FS_CEPH_SUPER_H
 
diff --git a/fs/ceph/xattr.c b/fs/ceph/xattr.c
index 3542b2c364cf..e1c4e0b12b4c 100644
--- a/fs/ceph/xattr.c
+++ b/fs/ceph/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 #include <linux/ceph/pagelist.h>
 
diff --git a/fs/char_dev.c b/fs/char_dev.c
index ebcc8fb3fa66..a65e4a56318c 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/char_dev.c
  *
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index f7243617316c..d5b2e12b5d02 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -5,9 +5,14 @@ config CIFS
 	select CRYPTO
 	select CRYPTO_MD4
 	select CRYPTO_MD5
+	select CRYPTO_SHA256
+	select CRYPTO_CMAC
 	select CRYPTO_HMAC
 	select CRYPTO_ARC4
+	select CRYPTO_AEAD2
+	select CRYPTO_CCM
 	select CRYPTO_ECB
+	select CRYPTO_AES
 	select CRYPTO_DES
 	help
 	  This is the client VFS module for the SMB3 family of NAS protocols,
diff --git a/fs/cifs/Makefile b/fs/cifs/Makefile
index 5e853a395b92..7134f182720b 100644
--- a/fs/cifs/Makefile
+++ b/fs/cifs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Linux CIFS VFS client 
 #
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c
index 9727e1dcacd5..cbb9534b89b4 100644
--- a/fs/cifs/cifs_debug.c
+++ b/fs/cifs/cifs_debug.c
@@ -160,8 +160,13 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v)
 			if ((ses->serverDomain == NULL) ||
 				(ses->serverOS == NULL) ||
 				(ses->serverNOS == NULL)) {
-				seq_printf(m, "\n%d) entry for %s not fully "
-					   "displayed\n\t", i, ses->serverName);
+				seq_printf(m, "\n%d) Name: %s Uses: %d Capability: 0x%x\tSession Status: %d\t",
+					i, ses->serverName, ses->ses_count,
+					ses->capabilities, ses->status);
+				if (ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
+					seq_printf(m, "Guest\t");
+				else if (ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)
+					seq_printf(m, "Anonymous\t");
 			} else {
 				seq_printf(m,
 				    "\n%d) Name: %s  Domain: %s Uses: %d OS:"
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 180b3356ff86..8c8b75d33f31 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -461,6 +461,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root)
 		seq_puts(s, ",nocase");
 	if (tcon->retry)
 		seq_puts(s, ",hard");
+	else
+		seq_puts(s, ",soft");
 	if (tcon->use_persistent)
 		seq_puts(s, ",persistenthandles");
 	else if (tcon->use_resilient)
@@ -1447,7 +1449,7 @@ exit_cifs(void)
 	exit_cifs_idmap();
 #endif
 #ifdef CONFIG_CIFS_UPCALL
-	unregister_key_type(&cifs_spnego_key_type);
+	exit_cifs_spnego();
 #endif
 	cifs_destroy_request_bufs();
 	cifs_destroy_mids();
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 30bf89b1fd9a..5a10e566f0e6 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -149,5 +149,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg);
 extern const struct export_operations cifs_export_ops;
 #endif /* CONFIG_CIFS_NFSD_EXPORT */
 
-#define CIFS_VERSION   "2.09"
+#define CIFS_VERSION   "2.10"
 #endif				/* _CIFSFS_H */
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 808486c29f0d..e185b2853eab 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -188,6 +188,8 @@ enum smb_version {
 #ifdef CONFIG_CIFS_SMB311
 	Smb_311,
 #endif /* SMB311 */
+	Smb_3any,
+	Smb_default,
 	Smb_version_err
 };
 
@@ -659,7 +661,9 @@ struct TCP_Server_Info {
 #endif
 	unsigned int	max_read;
 	unsigned int	max_write;
-	__u8		preauth_hash[512];
+#ifdef CONFIG_CIFS_SMB311
+	__u8	preauth_sha_hash[64]; /* save initital negprot hash */
+#endif /* 3.1.1 */
 	struct delayed_work reconnect; /* reconnect workqueue job */
 	struct mutex reconnect_mutex; /* prevent simultaneous reconnects */
 	unsigned long echo_interval;
@@ -847,7 +851,9 @@ struct cifs_ses {
 	__u8 smb3signingkey[SMB3_SIGN_KEY_SIZE];
 	__u8 smb3encryptionkey[SMB3_SIGN_KEY_SIZE];
 	__u8 smb3decryptionkey[SMB3_SIGN_KEY_SIZE];
-	__u8 preauth_hash[512];
+#ifdef CONFIG_CIFS_SMB311
+	__u8 preauth_sha_hash[64];
+#endif /* 3.1.1 */
 };
 
 static inline bool
@@ -1701,6 +1707,10 @@ extern struct smb_version_values smb20_values;
 #define SMB21_VERSION_STRING	"2.1"
 extern struct smb_version_operations smb21_operations;
 extern struct smb_version_values smb21_values;
+#define SMBDEFAULT_VERSION_STRING "default"
+extern struct smb_version_values smbdefault_values;
+#define SMB3ANY_VERSION_STRING "3"
+extern struct smb_version_values smb3any_values;
 #define SMB30_VERSION_STRING	"3.0"
 extern struct smb_version_operations smb30_operations;
 extern struct smb_version_values smb30_values;
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 5aa2d278ca84..0bfc2280436d 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -301,6 +301,8 @@ static const match_table_t cifs_smb_version_tokens = {
 	{ Smb_311, SMB311_VERSION_STRING },
 	{ Smb_311, ALT_SMB311_VERSION_STRING },
 #endif /* SMB311 */
+	{ Smb_3any, SMB3ANY_VERSION_STRING },
+	{ Smb_default, SMBDEFAULT_VERSION_STRING },
 	{ Smb_version_err, NULL }
 };
 
@@ -1148,6 +1150,14 @@ cifs_parse_smb_version(char *value, struct smb_vol *vol)
 		vol->vals = &smb311_values;
 		break;
 #endif /* SMB311 */
+	case Smb_3any:
+		vol->ops = &smb30_operations; /* currently identical with 3.0 */
+		vol->vals = &smb3any_values;
+		break;
+	case Smb_default:
+		vol->ops = &smb30_operations; /* currently identical with 3.0 */
+		vol->vals = &smbdefault_values;
+		break;
 	default:
 		cifs_dbg(VFS, "Unknown vers= option specified: %s\n", value);
 		return 1;
@@ -1274,9 +1284,9 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 
 	vol->actimeo = CIFS_DEF_ACTIMEO;
 
-	/* FIXME: add autonegotiation for SMB3 or later rather than just SMB3 */
-	vol->ops = &smb30_operations; /* both secure and accepted widely */
-	vol->vals = &smb30_values;
+	/* offer SMB2.1 and later (SMB3 etc). Secure and widely accepted */
+	vol->ops = &smb30_operations;
+	vol->vals = &smbdefault_values;
 
 	vol->echo_interval = SMB_ECHO_INTERVAL_DEFAULT;
 
@@ -1988,11 +1998,10 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
 
 	if (got_version == false)
 		pr_warn("No dialect specified on mount. Default has changed to "
-			"a more secure dialect, SMB3 (vers=3.0), from CIFS "
+			"a more secure dialect, SMB2.1 or later (e.g. SMB3), from CIFS "
 			"(SMB1). To use the less secure SMB1 dialect to access "
-			"old servers which do not support SMB3 specify vers=1.0"
-			" on mount. For somewhat newer servers such as Windows "
-			"7 try vers=2.1.\n");
+			"old servers which do not support SMB3 (or SMB2.1) specify vers=1.0"
+			" on mount.\n");
 
 	kfree(mountdata_copy);
 	return 0;
@@ -2133,6 +2142,7 @@ static int match_server(struct TCP_Server_Info *server, struct smb_vol *vol)
 	if (vol->nosharesock)
 		return 0;
 
+	/* BB update this for smb3any and default case */
 	if ((server->vals != vol->vals) || (server->ops != vol->ops))
 		return 0;
 
@@ -4144,6 +4154,14 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 	cifs_dbg(FYI, "Security Mode: 0x%x Capabilities: 0x%x TimeAdjust: %d\n",
 		 server->sec_mode, server->capabilities, server->timeAdj);
 
+	if (ses->auth_key.response) {
+		cifs_dbg(VFS, "Free previous auth_key.response = %p\n",
+			 ses->auth_key.response);
+		kfree(ses->auth_key.response);
+		ses->auth_key.response = NULL;
+		ses->auth_key.len = 0;
+	}
+
 	if (server->ops->sess_setup)
 		rc = server->ops->sess_setup(xid, ses, nls_info);
 
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index e702d48bd023..81ba6e0d88d8 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -204,7 +204,8 @@ check_name(struct dentry *direntry, struct cifs_tcon *tcon)
 	struct cifs_sb_info *cifs_sb = CIFS_SB(direntry->d_sb);
 	int i;
 
-	if (unlikely(direntry->d_name.len >
+	if (unlikely(tcon->fsAttrInfo.MaxPathNameComponentLength &&
+		     direntry->d_name.len >
 		     le32_to_cpu(tcon->fsAttrInfo.MaxPathNameComponentLength)))
 		return -ENAMETOOLONG;
 
@@ -520,7 +521,7 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
 
 	rc = check_name(direntry, tcon);
 	if (rc)
-		goto out_free_xid;
+		goto out;
 
 	server = tcon->ses->server;
 
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 0786f19d288f..92fdf9c35de2 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -224,6 +224,13 @@ cifs_nt_open(char *full_path, struct inode *inode, struct cifs_sb_info *cifs_sb,
 	if (backup_cred(cifs_sb))
 		create_options |= CREATE_OPEN_BACKUP_INTENT;
 
+	/* O_SYNC also has bit for O_DSYNC so following check picks up either */
+	if (f_flags & O_SYNC)
+		create_options |= CREATE_WRITE_THROUGH;
+
+	if (f_flags & O_DIRECT)
+		create_options |= CREATE_NO_BUFFER;
+
 	oparms.tcon = tcon;
 	oparms.cifs_sb = cifs_sb;
 	oparms.desired_access = desired_access;
@@ -1102,8 +1109,10 @@ cifs_push_mandatory_locks(struct cifsFileInfo *cfile)
 	struct cifs_tcon *tcon;
 	unsigned int num, max_num, max_buf;
 	LOCKING_ANDX_RANGE *buf, *cur;
-	int types[] = {LOCKING_ANDX_LARGE_FILES,
-		       LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES};
+	static const int types[] = {
+		LOCKING_ANDX_LARGE_FILES,
+		LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES
+	};
 	int i;
 
 	xid = get_xid();
@@ -1434,8 +1443,10 @@ cifs_unlock_range(struct cifsFileInfo *cfile, struct file_lock *flock,
 		  unsigned int xid)
 {
 	int rc = 0, stored_rc;
-	int types[] = {LOCKING_ANDX_LARGE_FILES,
-		       LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES};
+	static const int types[] = {
+		LOCKING_ANDX_LARGE_FILES,
+		LOCKING_ANDX_SHARED_LOCK | LOCKING_ANDX_LARGE_FILES
+	};
 	unsigned int i;
 	unsigned int max_num, num, max_buf;
 	LOCKING_ANDX_RANGE *buf, *cur;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index a8693632235f..7c732cb44164 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -234,6 +234,8 @@ cifs_unix_basic_to_fattr(struct cifs_fattr *fattr, FILE_UNIX_BASIC_INFO *info,
 	fattr->cf_atime = cifs_NTtimeToUnix(info->LastAccessTime);
 	fattr->cf_mtime = cifs_NTtimeToUnix(info->LastModificationTime);
 	fattr->cf_ctime = cifs_NTtimeToUnix(info->LastStatusChange);
+	/* old POSIX extensions don't get create time */
+
 	fattr->cf_mode = le64_to_cpu(info->Permissions);
 
 	/*
@@ -2024,6 +2026,19 @@ int cifs_getattr(const struct path *path, struct kstat *stat,
 	stat->blksize = CIFS_MAX_MSGSIZE;
 	stat->ino = CIFS_I(inode)->uniqueid;
 
+	/* old CIFS Unix Extensions doesn't return create time */
+	if (CIFS_I(inode)->createtime) {
+		stat->result_mask |= STATX_BTIME;
+		stat->btime =
+		      cifs_NTtimeToUnix(cpu_to_le64(CIFS_I(inode)->createtime));
+	}
+
+	stat->attributes_mask |= (STATX_ATTR_COMPRESSED | STATX_ATTR_ENCRYPTED);
+	if (CIFS_I(inode)->cifsAttrs & FILE_ATTRIBUTE_COMPRESSED)
+		stat->attributes |= STATX_ATTR_COMPRESSED;
+	if (CIFS_I(inode)->cifsAttrs & FILE_ATTRIBUTE_ENCRYPTED)
+		stat->attributes |= STATX_ATTR_ENCRYPTED;
+
 	/*
 	 * If on a multiuser mount without unix extensions or cifsacl being
 	 * enabled, and the admin hasn't overridden them, set the ownership
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 7ca9808a0daa..62c88dfed57b 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -214,7 +214,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
 	{STATUS_DATATYPE_MISALIGNMENT, -EIO, "STATUS_DATATYPE_MISALIGNMENT"},
 	{STATUS_BREAKPOINT, -EIO, "STATUS_BREAKPOINT"},
 	{STATUS_SINGLE_STEP, -EIO, "STATUS_SINGLE_STEP"},
-	{STATUS_BUFFER_OVERFLOW, -EIO, "STATUS_BUFFER_OVERFLOW"},
+	{STATUS_BUFFER_OVERFLOW, -E2BIG, "STATUS_BUFFER_OVERFLOW"},
 	{STATUS_NO_MORE_FILES, -ENODATA, "STATUS_NO_MORE_FILES"},
 	{STATUS_WAKE_SYSTEM_DEBUGGER, -EIO, "STATUS_WAKE_SYSTEM_DEBUGGER"},
 	{STATUS_HANDLES_CLOSED, -EIO, "STATUS_HANDLES_CLOSED"},
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index fb2934b9b97c..e06740436b92 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -426,6 +426,7 @@ smb2_query_file_info(const unsigned int xid, struct cifs_tcon *tcon,
 	return rc;
 }
 
+#ifdef CONFIG_CIFS_XATTR
 static ssize_t
 move_smb2_ea_to_cifs(char *dst, size_t dst_size,
 		     struct smb2_file_full_ea_info *src, size_t src_size,
@@ -521,6 +522,7 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
 	struct cifs_open_parms oparms;
 	struct cifs_fid fid;
 	struct smb2_file_full_ea_info *smb2_data;
+	int ea_buf_size = SMB2_MIN_EA_BUF;
 
 	utf16_path = cifs_convert_path_to_utf16(path, cifs_sb);
 	if (!utf16_path)
@@ -540,14 +542,32 @@ smb2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
 		return rc;
 	}
 
-	smb2_data = kzalloc(SMB2_MAX_EA_BUF, GFP_KERNEL);
-	if (smb2_data == NULL) {
-		SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
-		return -ENOMEM;
+	while (1) {
+		smb2_data = kzalloc(ea_buf_size, GFP_KERNEL);
+		if (smb2_data == NULL) {
+			SMB2_close(xid, tcon, fid.persistent_fid,
+				   fid.volatile_fid);
+			return -ENOMEM;
+		}
+
+		rc = SMB2_query_eas(xid, tcon, fid.persistent_fid,
+				    fid.volatile_fid,
+				    ea_buf_size, smb2_data);
+
+		if (rc != -E2BIG)
+			break;
+
+		kfree(smb2_data);
+		ea_buf_size <<= 1;
+
+		if (ea_buf_size > SMB2_MAX_EA_BUF) {
+			cifs_dbg(VFS, "EA size is too large\n");
+			SMB2_close(xid, tcon, fid.persistent_fid,
+				   fid.volatile_fid);
+			return -ENOMEM;
+		}
 	}
 
-	rc = SMB2_query_eas(xid, tcon, fid.persistent_fid, fid.volatile_fid,
-			    smb2_data);
 	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
 
 	if (!rc)
@@ -613,6 +633,7 @@ smb2_set_ea(const unsigned int xid, struct cifs_tcon *tcon,
 
 	return rc;
 }
+#endif
 
 static bool
 smb2_can_echo(struct TCP_Server_Info *server)
@@ -2066,22 +2087,6 @@ init_sg(struct smb_rqst *rqst, u8 *sign)
 	return sg;
 }
 
-struct cifs_crypt_result {
-	int err;
-	struct completion completion;
-};
-
-static void cifs_crypt_complete(struct crypto_async_request *req, int err)
-{
-	struct cifs_crypt_result *res = req->data;
-
-	if (err == -EINPROGRESS)
-		return;
-
-	res->err = err;
-	complete(&res->completion);
-}
-
 static int
 smb2_get_enc_key(struct TCP_Server_Info *server, __u64 ses_id, int enc, u8 *key)
 {
@@ -2122,12 +2127,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc)
 	struct aead_request *req;
 	char *iv;
 	unsigned int iv_len;
-	struct cifs_crypt_result result = {0, };
+	DECLARE_CRYPTO_WAIT(wait);
 	struct crypto_aead *tfm;
 	unsigned int crypt_len = le32_to_cpu(tr_hdr->OriginalMessageSize);
 
-	init_completion(&result.completion);
-
 	rc = smb2_get_enc_key(server, tr_hdr->SessionId, enc, key);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not get %scryption key\n", __func__,
@@ -2187,14 +2190,10 @@ crypt_message(struct TCP_Server_Info *server, struct smb_rqst *rqst, int enc)
 	aead_request_set_ad(req, assoc_data_len);
 
 	aead_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
-				  cifs_crypt_complete, &result);
-
-	rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
+				  crypto_req_done, &wait);
 
-	if (rc == -EINPROGRESS || rc == -EBUSY) {
-		wait_for_completion(&result.completion);
-		rc = result.err;
-	}
+	rc = crypto_wait_req(enc ? crypto_aead_encrypt(req)
+				: crypto_aead_decrypt(req), &wait);
 
 	if (!rc && enc)
 		memcpy(&tr_hdr->Signature, sign, SMB2_SIGNATURE_SIZE);
@@ -3110,6 +3109,46 @@ struct smb_version_values smb21_values = {
 	.create_lease_size = sizeof(struct create_lease),
 };
 
+struct smb_version_values smb3any_values = {
+	.version_string = SMB3ANY_VERSION_STRING,
+	.protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */
+	.req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+	.large_lock_type = 0,
+	.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
+	.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
+	.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
+	.header_size = sizeof(struct smb2_hdr),
+	.max_header_size = MAX_SMB2_HDR_SIZE,
+	.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
+	.lock_cmd = SMB2_LOCK,
+	.cap_unix = 0,
+	.cap_nt_find = SMB2_NT_FIND,
+	.cap_large_files = SMB2_LARGE_FILES,
+	.signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
+	.signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
+	.create_lease_size = sizeof(struct create_lease_v2),
+};
+
+struct smb_version_values smbdefault_values = {
+	.version_string = SMBDEFAULT_VERSION_STRING,
+	.protocol_id = SMB302_PROT_ID, /* doesn't matter, send protocol array */
+	.req_capabilities = SMB2_GLOBAL_CAP_DFS | SMB2_GLOBAL_CAP_LEASING | SMB2_GLOBAL_CAP_LARGE_MTU | SMB2_GLOBAL_CAP_PERSISTENT_HANDLES | SMB2_GLOBAL_CAP_ENCRYPTION,
+	.large_lock_type = 0,
+	.exclusive_lock_type = SMB2_LOCKFLAG_EXCLUSIVE_LOCK,
+	.shared_lock_type = SMB2_LOCKFLAG_SHARED_LOCK,
+	.unlock_lock_type = SMB2_LOCKFLAG_UNLOCK,
+	.header_size = sizeof(struct smb2_hdr),
+	.max_header_size = MAX_SMB2_HDR_SIZE,
+	.read_rsp_size = sizeof(struct smb2_read_rsp) - 1,
+	.lock_cmd = SMB2_LOCK,
+	.cap_unix = 0,
+	.cap_nt_find = SMB2_NT_FIND,
+	.cap_large_files = SMB2_LARGE_FILES,
+	.signing_enabled = SMB2_NEGOTIATE_SIGNING_ENABLED | SMB2_NEGOTIATE_SIGNING_REQUIRED,
+	.signing_required = SMB2_NEGOTIATE_SIGNING_REQUIRED,
+	.create_lease_size = sizeof(struct create_lease_v2),
+};
+
 struct smb_version_values smb30_values = {
 	.version_string = SMB30_VERSION_STRING,
 	.protocol_id = SMB30_PROT_ID,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 5531e7ee1210..5331631386a2 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -439,7 +439,7 @@ assemble_neg_contexts(struct smb2_negotiate_req *req)
 	build_encrypt_ctxt((struct smb2_encryption_neg_context *)pneg_ctxt);
 	req->NegotiateContextOffset = cpu_to_le32(OFFSET_OF_NEG_CONTEXT);
 	req->NegotiateContextCount = cpu_to_le16(2);
-	inc_rfc1001_len(req, 4 + sizeof(struct smb2_preauth_neg_context) + 2
+	inc_rfc1001_len(req, 4 + sizeof(struct smb2_preauth_neg_context)
 			+ sizeof(struct smb2_encryption_neg_context)); /* calculate hash */
 }
 #else
@@ -491,10 +491,25 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
 
 	req->hdr.sync_hdr.SessionId = 0;
 
-	req->Dialects[0] = cpu_to_le16(ses->server->vals->protocol_id);
-
-	req->DialectCount = cpu_to_le16(1); /* One vers= at a time for now */
-	inc_rfc1001_len(req, 2);
+	if (strcmp(ses->server->vals->version_string,
+		   SMB3ANY_VERSION_STRING) == 0) {
+		req->Dialects[0] = cpu_to_le16(SMB30_PROT_ID);
+		req->Dialects[1] = cpu_to_le16(SMB302_PROT_ID);
+		req->DialectCount = cpu_to_le16(2);
+		inc_rfc1001_len(req, 4);
+	} else if (strcmp(ses->server->vals->version_string,
+		   SMBDEFAULT_VERSION_STRING) == 0) {
+		req->Dialects[0] = cpu_to_le16(SMB21_PROT_ID);
+		req->Dialects[1] = cpu_to_le16(SMB30_PROT_ID);
+		req->Dialects[2] = cpu_to_le16(SMB302_PROT_ID);
+		req->DialectCount = cpu_to_le16(3);
+		inc_rfc1001_len(req, 6);
+	} else {
+		/* otherwise send specific dialect */
+		req->Dialects[0] = cpu_to_le16(ses->server->vals->protocol_id);
+		req->DialectCount = cpu_to_le16(1);
+		inc_rfc1001_len(req, 2);
+	}
 
 	/* only one of SMB2 signing flags may be set in SMB2 request */
 	if (ses->sign)
@@ -528,16 +543,43 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
 	 */
 	if (rc == -EOPNOTSUPP) {
 		cifs_dbg(VFS, "Dialect not supported by server. Consider "
-			"specifying vers=1.0 or vers=2.1 on mount for accessing"
+			"specifying vers=1.0 or vers=2.0 on mount for accessing"
 			" older servers\n");
 		goto neg_exit;
 	} else if (rc != 0)
 		goto neg_exit;
 
+	if (strcmp(ses->server->vals->version_string,
+		   SMB3ANY_VERSION_STRING) == 0) {
+		if (rsp->DialectRevision == cpu_to_le16(SMB20_PROT_ID)) {
+			cifs_dbg(VFS,
+				"SMB2 dialect returned but not requested\n");
+			return -EIO;
+		} else if (rsp->DialectRevision == cpu_to_le16(SMB21_PROT_ID)) {
+			cifs_dbg(VFS,
+				"SMB2.1 dialect returned but not requested\n");
+			return -EIO;
+		}
+	} else if (strcmp(ses->server->vals->version_string,
+		   SMBDEFAULT_VERSION_STRING) == 0) {
+		if (rsp->DialectRevision == cpu_to_le16(SMB20_PROT_ID)) {
+			cifs_dbg(VFS,
+				"SMB2 dialect returned but not requested\n");
+			return -EIO;
+		} else if (rsp->DialectRevision == cpu_to_le16(SMB21_PROT_ID)) {
+			/* ops set to 3.0 by default for default so update */
+			ses->server->ops = &smb21_operations;
+		}
+	} else if (le16_to_cpu(rsp->DialectRevision) !=
+				ses->server->vals->protocol_id) {
+		/* if requested single dialect ensure returned dialect matched */
+		cifs_dbg(VFS, "Illegal 0x%x dialect returned: not requested\n",
+			le16_to_cpu(rsp->DialectRevision));
+		return -EIO;
+	}
+
 	cifs_dbg(FYI, "mode 0x%x\n", rsp->SecurityMode);
 
-	/* BB we may eventually want to match the negotiated vs. requested
-	   dialect, even though we are only requesting one at a time */
 	if (rsp->DialectRevision == cpu_to_le16(SMB20_PROT_ID))
 		cifs_dbg(FYI, "negotiated smb2.0 dialect\n");
 	else if (rsp->DialectRevision == cpu_to_le16(SMB21_PROT_ID))
@@ -558,6 +600,8 @@ SMB2_negotiate(const unsigned int xid, struct cifs_ses *ses)
 	}
 	server->dialect = le16_to_cpu(rsp->DialectRevision);
 
+	/* BB: add check that dialect was valid given dialect(s) we asked for */
+
 	/* SMB2 only has an extended negflavor */
 	server->negflavor = CIFS_NEGFLAVOR_EXTENDED;
 	/* set it to the maximum buffer size value we can send with 1 credit */
@@ -604,22 +648,30 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
 {
 	int rc = 0;
 	struct validate_negotiate_info_req vneg_inbuf;
-	struct validate_negotiate_info_rsp *pneg_rsp;
+	struct validate_negotiate_info_rsp *pneg_rsp = NULL;
 	u32 rsplen;
+	u32 inbuflen; /* max of 4 dialects */
 
 	cifs_dbg(FYI, "validate negotiate\n");
 
 	/*
 	 * validation ioctl must be signed, so no point sending this if we
-	 * can not sign it.  We could eventually change this to selectively
+	 * can not sign it (ie are not known user).  Even if signing is not
+	 * required (enabled but not negotiated), in those cases we selectively
 	 * sign just this, the first and only signed request on a connection.
-	 * This is good enough for now since a user who wants better security
-	 * would also enable signing on the mount. Having validation of
-	 * negotiate info for signed connections helps reduce attack vectors
+	 * Having validation of negotiate info  helps reduce attack vectors.
 	 */
-	if (tcon->ses->server->sign == false)
+	if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST)
 		return 0; /* validation requires signing */
 
+	if (tcon->ses->user_name == NULL) {
+		cifs_dbg(FYI, "Can't validate negotiate: null user mount\n");
+		return 0; /* validation requires signing */
+	}
+
+	if (tcon->ses->session_flags & SMB2_SESSION_FLAG_IS_NULL)
+		cifs_dbg(VFS, "Unexpected null user (anonymous) auth flag sent by server\n");
+
 	vneg_inbuf.Capabilities =
 			cpu_to_le32(tcon->ses->server->vals->req_capabilities);
 	memcpy(vneg_inbuf.Guid, tcon->ses->server->client_guid,
@@ -634,9 +686,30 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
 	else
 		vneg_inbuf.SecurityMode = 0;
 
-	vneg_inbuf.DialectCount = cpu_to_le16(1);
-	vneg_inbuf.Dialects[0] =
-		cpu_to_le16(tcon->ses->server->vals->protocol_id);
+
+	if (strcmp(tcon->ses->server->vals->version_string,
+		SMB3ANY_VERSION_STRING) == 0) {
+		vneg_inbuf.Dialects[0] = cpu_to_le16(SMB30_PROT_ID);
+		vneg_inbuf.Dialects[1] = cpu_to_le16(SMB302_PROT_ID);
+		vneg_inbuf.DialectCount = cpu_to_le16(2);
+		/* structure is big enough for 3 dialects, sending only 2 */
+		inbuflen = sizeof(struct validate_negotiate_info_req) - 2;
+	} else if (strcmp(tcon->ses->server->vals->version_string,
+		SMBDEFAULT_VERSION_STRING) == 0) {
+		vneg_inbuf.Dialects[0] = cpu_to_le16(SMB21_PROT_ID);
+		vneg_inbuf.Dialects[1] = cpu_to_le16(SMB30_PROT_ID);
+		vneg_inbuf.Dialects[2] = cpu_to_le16(SMB302_PROT_ID);
+		vneg_inbuf.DialectCount = cpu_to_le16(3);
+		/* structure is big enough for 3 dialects */
+		inbuflen = sizeof(struct validate_negotiate_info_req);
+	} else {
+		/* otherwise specific dialect was requested */
+		vneg_inbuf.Dialects[0] =
+			cpu_to_le16(tcon->ses->server->vals->protocol_id);
+		vneg_inbuf.DialectCount = cpu_to_le16(1);
+		/* structure is big enough for 3 dialects, sending only 1 */
+		inbuflen = sizeof(struct validate_negotiate_info_req) - 4;
+	}
 
 	rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
 		FSCTL_VALIDATE_NEGOTIATE_INFO, true /* is_fsctl */,
@@ -654,8 +727,9 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
 			 rsplen);
 
 		/* relax check since Mac returns max bufsize allowed on ioctl */
-		if (rsplen > CIFSMaxBufSize)
-			return -EIO;
+		if ((rsplen > CIFSMaxBufSize)
+		     || (rsplen < sizeof(struct validate_negotiate_info_rsp)))
+			goto err_rsp_free;
 	}
 
 	/* check validate negotiate info response matches what we got earlier */
@@ -674,10 +748,13 @@ int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
 
 	/* validate negotiate successful */
 	cifs_dbg(FYI, "validate negotiate info successful\n");
+	kfree(pneg_rsp);
 	return 0;
 
 vneg_out:
 	cifs_dbg(VFS, "protocol revalidation - security settings mismatch\n");
+err_rsp_free:
+	kfree(pneg_rsp);
 	return -EIO;
 }
 
@@ -1110,6 +1187,8 @@ SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
 	while (sess_data->func)
 		sess_data->func(sess_data);
 
+	if ((ses->session_flags & SMB2_SESSION_FLAG_IS_GUEST) && (ses->sign))
+		cifs_dbg(VFS, "signing requested but authenticated as guest\n");
 	rc = sess_data->result;
 out:
 	kfree(sess_data);
@@ -1180,7 +1259,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
 	struct smb2_tree_connect_req *req;
 	struct smb2_tree_connect_rsp *rsp = NULL;
 	struct kvec iov[2];
-	struct kvec rsp_iov;
+	struct kvec rsp_iov = { NULL, 0 };
 	int rc = 0;
 	int resp_buftype;
 	int unc_path_len;
@@ -1297,7 +1376,7 @@ tcon_exit:
 	return rc;
 
 tcon_error_exit:
-	if (rsp->hdr.sync_hdr.Status == STATUS_BAD_NETWORK_NAME) {
+	if (rsp && rsp->hdr.sync_hdr.Status == STATUS_BAD_NETWORK_NAME) {
 		cifs_dbg(VFS, "BAD_NETWORK_NAME: %s\n", tree);
 	}
 	goto tcon_exit;
@@ -1634,7 +1713,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
 	struct cifs_tcon *tcon = oparms->tcon;
 	struct cifs_ses *ses = tcon->ses;
 	struct kvec iov[4];
-	struct kvec rsp_iov;
+	struct kvec rsp_iov = {NULL, 0};
 	int resp_buftype;
 	int uni_path_len;
 	__le16 *copy_path = NULL;
@@ -1763,7 +1842,7 @@ SMB2_open(const unsigned int xid, struct cifs_open_parms *oparms, __le16 *path,
 
 	if (rc != 0) {
 		cifs_stats_fail_inc(tcon, SMB2_CREATE_HE);
-		if (err_buf)
+		if (err_buf && rsp)
 			*err_buf = kmemdup(rsp, get_rfc1002_length(rsp) + 4,
 					   GFP_KERNEL);
 		goto creat_exit;
@@ -1900,6 +1979,9 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 	} else
 		iov[0].iov_len = get_rfc1002_length(req) + 4;
 
+	/* validate negotiate request must be signed - see MS-SMB2 3.2.5.5 */
+	if (opcode == FSCTL_VALIDATE_NEGOTIATE_INFO)
+		req->hdr.sync_hdr.Flags |= SMB2_FLAGS_SIGNED;
 
 	rc = SendReceive2(xid, ses, iov, n_iov, &resp_buftype, flags, &rsp_iov);
 	cifs_small_buf_release(req);
@@ -2116,9 +2198,13 @@ query_info(const unsigned int xid, struct cifs_tcon *tcon,
 	req->PersistentFileId = persistent_fid;
 	req->VolatileFileId = volatile_fid;
 	req->AdditionalInformation = cpu_to_le32(additional_info);
-	/* 4 for rfc1002 length field and 1 for Buffer */
-	req->InputBufferOffset =
-		cpu_to_le16(sizeof(struct smb2_query_info_req) - 1 - 4);
+
+	/*
+	 * We do not use the input buffer (do not send extra byte)
+	 */
+	req->InputBufferOffset = 0;
+	inc_rfc1001_len(req, -1);
+
 	req->OutputBufferLength = cpu_to_le32(output_len);
 
 	iov[0].iov_base = (char *)req;
@@ -2158,12 +2244,12 @@ qinf_exit:
 }
 
 int SMB2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
-	u64 persistent_fid, u64 volatile_fid,
-	struct smb2_file_full_ea_info *data)
+		   u64 persistent_fid, u64 volatile_fid,
+		   int ea_buf_size, struct smb2_file_full_ea_info *data)
 {
 	return query_info(xid, tcon, persistent_fid, volatile_fid,
 			  FILE_FULL_EA_INFORMATION, SMB2_O_INFO_FILE, 0,
-			  SMB2_MAX_EA_BUF,
+			  ea_buf_size,
 			  sizeof(struct smb2_file_full_ea_info),
 			  (void **)&data,
 			  NULL);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 393ed5f4e1b6..c2ec934be968 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -716,7 +716,7 @@ struct validate_negotiate_info_req {
 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
 	__le16 SecurityMode;
 	__le16 DialectCount;
-	__le16 Dialects[1]; /* dialect (someday maybe list) client asked for */
+	__le16 Dialects[3]; /* BB expand this if autonegotiate > 3 dialects */
 } __packed;
 
 struct validate_negotiate_info_rsp {
@@ -832,7 +832,7 @@ struct smb2_flush_rsp {
 /* Channel field for read and write: exactly one of following flags can be set*/
 #define SMB2_CHANNEL_NONE		0x00000000
 #define SMB2_CHANNEL_RDMA_V1		0x00000001 /* SMB3 or later */
-#define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000001 /* SMB3.02 or later */
+#define SMB2_CHANNEL_RDMA_V1_INVALIDATE 0x00000002 /* SMB3.02 or later */
 
 /* SMB2 read request without RFC1001 length at the beginning */
 struct smb2_read_plain_req {
@@ -1178,7 +1178,8 @@ struct smb2_file_link_info { /* encoding of request for level 11 */
 	char   FileName[0];     /* Name to be assigned to new link */
 } __packed; /* level 11 Set */
 
-#define SMB2_MAX_EA_BUF 2048
+#define SMB2_MIN_EA_BUF  2048
+#define SMB2_MAX_EA_BUF 65536
 
 struct smb2_file_full_ea_info { /* encoding of response for level 15 */
 	__le32 next_entry_offset;
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 003217099ef3..e9ab5227e7a8 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -134,6 +134,7 @@ extern int SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon,
 		      u64 persistent_file_id, u64 volatile_file_id);
 extern int SMB2_query_eas(const unsigned int xid, struct cifs_tcon *tcon,
 			  u64 persistent_file_id, u64 volatile_file_id,
+			  int ea_buf_size,
 			  struct smb2_file_full_ea_info *data);
 extern int SMB2_query_info(const unsigned int xid, struct cifs_tcon *tcon,
 			   u64 persistent_file_id, u64 volatile_file_id,
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 67367cf1f8cd..99493946e2f9 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -390,6 +390,7 @@ generate_smb30signingkey(struct cifs_ses *ses)
 	return generate_smb3signingkey(ses, &triplet);
 }
 
+#ifdef CONFIG_CIFS_SMB311
 int
 generate_smb311signingkey(struct cifs_ses *ses)
 
@@ -398,25 +399,26 @@ generate_smb311signingkey(struct cifs_ses *ses)
 	struct derivation *d;
 
 	d = &triplet.signing;
-	d->label.iov_base = "SMB2AESCMAC";
-	d->label.iov_len = 12;
-	d->context.iov_base = "SmbSign";
-	d->context.iov_len = 8;
+	d->label.iov_base = "SMBSigningKey";
+	d->label.iov_len = 14;
+	d->context.iov_base = ses->preauth_sha_hash;
+	d->context.iov_len = 64;
 
 	d = &triplet.encryption;
-	d->label.iov_base = "SMB2AESCCM";
-	d->label.iov_len = 11;
-	d->context.iov_base = "ServerIn ";
-	d->context.iov_len = 10;
+	d->label.iov_base = "SMBC2SCipherKey";
+	d->label.iov_len = 16;
+	d->context.iov_base = ses->preauth_sha_hash;
+	d->context.iov_len = 64;
 
 	d = &triplet.decryption;
-	d->label.iov_base = "SMB2AESCCM";
-	d->label.iov_len = 11;
-	d->context.iov_base = "ServerOut";
-	d->context.iov_len = 10;
+	d->label.iov_base = "SMBS2CCipherKey";
+	d->label.iov_len = 16;
+	d->context.iov_base = ses->preauth_sha_hash;
+	d->context.iov_len = 64;
 
 	return generate_smb3signingkey(ses, &triplet);
 }
+#endif /* 311 */
 
 int
 smb3_calc_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
diff --git a/fs/coda/cache.c b/fs/coda/cache.c
index 5bb630a769e0..201fc08a8b4f 100644
--- a/fs/coda/cache.c
+++ b/fs/coda/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Cache operations for Coda.
  * For Linux 2.1: (C) 1997 Carnegie Mellon University
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
index f13e09057c6b..845b5a66952a 100644
--- a/fs/coda/cnode.c
+++ b/fs/coda/cnode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* cnode related routines for the coda kernel code
    (C) 1996 Peter Braam
    */
diff --git a/fs/coda/coda_cache.h b/fs/coda/coda_cache.h
index c910b5eb1ceb..c9f7a77c013e 100644
--- a/fs/coda/coda_cache.h
+++ b/fs/coda/coda_cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Coda filesystem -- Linux Minicache
  *
  * Copyright (C) 1989 - 1997 Carnegie Mellon University
diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h
index c64075213218..d702ba1a2bf9 100644
--- a/fs/coda/coda_fs_i.h
+++ b/fs/coda/coda_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  coda_fs_i.h
  *
diff --git a/fs/coda/coda_int.h b/fs/coda/coda_int.h
index 381c993b1427..bb0b3e0ed6c2 100644
--- a/fs/coda/coda_int.h
+++ b/fs/coda/coda_int.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CODA_INT_
 #define _CODA_INT_
 
diff --git a/fs/coda/coda_linux.c b/fs/coda/coda_linux.c
index f1714cfb589c..ca599df0dcb1 100644
--- a/fs/coda/coda_linux.c
+++ b/fs/coda/coda_linux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Inode operations for Coda filesystem
  * Original version: (C) 1996 P. Braam and M. Callahan
diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index d3c361883c28..126155cadfa9 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * Coda File System, Linux Kernel module
  * 
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index c0474ac6cbf2..00876ddadb43 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  * Directory operations for Coda filesystem
@@ -368,9 +369,10 @@ static int coda_venus_readdir(struct file *coda_file, struct dir_context *ctx)
 		goto out;
 
 	while (1) {
+		loff_t pos = ctx->pos - 2;
+
 		/* read entries from the directory file */
-		ret = kernel_read(host_file, ctx->pos - 2, (char *)vdir,
-				  sizeof(*vdir));
+		ret = kernel_read(host_file, vdir, sizeof(*vdir), &pos);
 		if (ret < 0) {
 			pr_err("%s: read dir %s failed %d\n",
 			       __func__, coda_f2s(&cii->c_fid), ret);
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 363402fcb3ed..1cbc1f2298ee 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * File operations for Coda.
  * Original version: (C) 1996 Peter Braam 
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 6058df380cc0..6f0a6a4d5faa 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Super block/filesystem wide operations
  *
diff --git a/fs/coda/pioctl.c b/fs/coda/pioctl.c
index b0b9cda41928..e0c17b7dccce 100644
--- a/fs/coda/pioctl.c
+++ b/fs/coda/pioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Pioctl operations for Coda.
  * Original version: (C) 1996 Peter Braam
diff --git a/fs/coda/symlink.c b/fs/coda/symlink.c
index 03736e20d720..202297d156df 100644
--- a/fs/coda/symlink.c
+++ b/fs/coda/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Symlink inode operations for Coda filesystem
  * Original version: (C) 1996 P. Braam and M. Callahan
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index 34218a8a28cd..0301d45000a8 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Sysctl operations for Coda filesystem
  * Original version: (C) 1996 P. Braam and M. Callahan
diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c
index e82357c89979..a37f003530d7 100644
--- a/fs/coda/upcall.c
+++ b/fs/coda/upcall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Mostly platform independent upcall operations to Venus:
  *  -- upcalls
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index d27b326d96f4..bd5d91e119ca 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
  *
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 56fb26127fef..577cff24707b 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -584,7 +584,7 @@ static void detach_attrs(struct config_item * item)
 
 static int populate_attrs(struct config_item *item)
 {
-	struct config_item_type *t = item->ci_type;
+	const struct config_item_type *t = item->ci_type;
 	struct configfs_attribute *attr;
 	struct configfs_bin_attribute *bin_attr;
 	int error = 0;
@@ -901,7 +901,7 @@ static void configfs_detach_group(struct config_item *item)
 static void client_disconnect_notify(struct config_item *parent_item,
 				     struct config_item *item)
 {
-	struct config_item_type *type;
+	const struct config_item_type *type;
 
 	type = parent_item->ci_type;
 	BUG_ON(!type);
@@ -920,7 +920,7 @@ static void client_disconnect_notify(struct config_item *parent_item,
 static void client_drop_item(struct config_item *parent_item,
 			     struct config_item *item)
 {
-	struct config_item_type *type;
+	const struct config_item_type *type;
 
 	type = parent_item->ci_type;
 	BUG_ON(!type);
@@ -1260,7 +1260,7 @@ static int configfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
 	struct config_item *parent_item;
 	struct configfs_subsystem *subsys;
 	struct configfs_dirent *sd;
-	struct config_item_type *type;
+	const struct config_item_type *type;
 	struct module *subsys_owner = NULL, *new_item_owner = NULL;
 	char *name;
 
@@ -1810,7 +1810,7 @@ EXPORT_SYMBOL(configfs_unregister_group);
 struct config_group *
 configfs_register_default_group(struct config_group *parent_group,
 				const char *name,
-				struct config_item_type *item_type)
+				const struct config_item_type *item_type)
 {
 	int ret;
 	struct config_group *group;
diff --git a/fs/configfs/file.c b/fs/configfs/file.c
index 39da1103d341..62580dba3552 100644
--- a/fs/configfs/file.c
+++ b/fs/configfs/file.c
@@ -166,7 +166,7 @@ configfs_read_bin_file(struct file *file, char __user *buf,
 		retval = -ETXTBSY;
 		goto out;
 	}
-	buffer->read_in_progress = 1;
+	buffer->read_in_progress = true;
 
 	if (buffer->needs_read_fill) {
 		/* perform first read with buf == NULL to get extent */
@@ -325,7 +325,7 @@ configfs_write_bin_file(struct file *file, const char __user *buf,
 		len = -ETXTBSY;
 		goto out;
 	}
-	buffer->write_in_progress = 1;
+	buffer->write_in_progress = true;
 
 	/* buffer grows? */
 	if (*ppos + count > buffer->bin_buffer_size) {
@@ -429,8 +429,8 @@ static int check_perm(struct inode * inode, struct file * file, int type)
 	}
 	mutex_init(&buffer->mutex);
 	buffer->needs_read_fill = 1;
-	buffer->read_in_progress = 0;
-	buffer->write_in_progress = 0;
+	buffer->read_in_progress = false;
+	buffer->write_in_progress = false;
 	buffer->ops = ops;
 	file->private_data = buffer;
 	goto Done;
@@ -488,10 +488,10 @@ static int configfs_release_bin_file(struct inode *inode, struct file *filp)
 	ssize_t len = 0;
 	int ret;
 
-	buffer->read_in_progress = 0;
+	buffer->read_in_progress = false;
 
 	if (buffer->write_in_progress) {
-		buffer->write_in_progress = 0;
+		buffer->write_in_progress = false;
 
 		len = bin_attr->write(item, buffer->bin_buffer,
 				buffer->bin_buffer_size);
diff --git a/fs/configfs/item.c b/fs/configfs/item.c
index a66f6624d899..88f266efc09b 100644
--- a/fs/configfs/item.c
+++ b/fs/configfs/item.c
@@ -113,7 +113,7 @@ EXPORT_SYMBOL(config_item_set_name);
 
 void config_item_init_type_name(struct config_item *item,
 				const char *name,
-				struct config_item_type *type)
+				const struct config_item_type *type)
 {
 	config_item_set_name(item, "%s", name);
 	item->ci_type = type;
@@ -122,7 +122,7 @@ void config_item_init_type_name(struct config_item *item,
 EXPORT_SYMBOL(config_item_init_type_name);
 
 void config_group_init_type_name(struct config_group *group, const char *name,
-			 struct config_item_type *type)
+			 const struct config_item_type *type)
 {
 	config_item_set_name(&group->cg_item, "%s", name);
 	group->cg_item.ci_type = type;
@@ -148,7 +148,7 @@ EXPORT_SYMBOL(config_item_get_unless_zero);
 
 static void config_item_cleanup(struct config_item *item)
 {
-	struct config_item_type *t = item->ci_type;
+	const struct config_item_type *t = item->ci_type;
 	struct config_group *s = item->ci_group;
 	struct config_item *parent = item->ci_parent;
 
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index c8aabba502f6..78ffc2699993 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -138,7 +138,7 @@ int configfs_symlink(struct inode *dir, struct dentry *dentry, const char *symna
 	struct configfs_dirent *sd;
 	struct config_item *parent_item;
 	struct config_item *target_item = NULL;
-	struct config_item_type *type;
+	const struct config_item_type *type;
 
 	sd = dentry->d_parent->d_fsdata;
 	/*
@@ -186,7 +186,7 @@ int configfs_unlink(struct inode *dir, struct dentry *dentry)
 	struct configfs_dirent *sd = dentry->d_fsdata;
 	struct configfs_symlink *sl;
 	struct config_item *parent_item;
-	struct config_item_type *type;
+	const struct config_item_type *type;
 	int ret;
 
 	ret = -EPERM;  /* What lack-of-symlink returns */
diff --git a/fs/coredump.c b/fs/coredump.c
index 592683711c64..52c63d6c9143 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/file.h>
 #include <linux/fdtable.h>
@@ -161,7 +162,7 @@ static int cn_print_exe_file(struct core_name *cn)
 	if (!exe_file)
 		return cn_esc_printf(cn, "%s (path unknown)", current->comm);
 
-	pathbuf = kmalloc(PATH_MAX, GFP_TEMPORARY);
+	pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
 	if (!pathbuf) {
 		ret = -ENOMEM;
 		goto put_exe_file;
diff --git a/fs/cramfs/uncompress.c b/fs/cramfs/uncompress.c
index ec4f1d4fdad0..975d98fc26b5 100644
--- a/fs/cramfs/uncompress.c
+++ b/fs/cramfs/uncompress.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * uncompress.c
  *
diff --git a/fs/crypto/Makefile b/fs/crypto/Makefile
index 9f6607f17b53..cb496989a6b6 100644
--- a/fs/crypto/Makefile
+++ b/fs/crypto/Makefile
@@ -1,4 +1,4 @@
 obj-$(CONFIG_FS_ENCRYPTION)	+= fscrypto.o
 
-fscrypto-y := crypto.o fname.o policy.o keyinfo.o
+fscrypto-y := crypto.o fname.o hooks.o keyinfo.o policy.o
 fscrypto-$(CONFIG_BLOCK) += bio.o
diff --git a/fs/crypto/bio.c b/fs/crypto/bio.c
index 483784d5eb73..0d5e6a569d58 100644
--- a/fs/crypto/bio.c
+++ b/fs/crypto/bio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This contains encryption functions for per-file encryption.
  *
diff --git a/fs/crypto/crypto.c b/fs/crypto/crypto.c
index c7835df7e7b8..732a786cce9d 100644
--- a/fs/crypto/crypto.c
+++ b/fs/crypto/crypto.c
@@ -126,21 +126,6 @@ struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode, gfp_t gfp_flags)
 }
 EXPORT_SYMBOL(fscrypt_get_ctx);
 
-/**
- * page_crypt_complete() - completion callback for page crypto
- * @req: The asynchronous cipher request context
- * @res: The result of the cipher operation
- */
-static void page_crypt_complete(struct crypto_async_request *req, int res)
-{
-	struct fscrypt_completion_result *ecr = req->data;
-
-	if (res == -EINPROGRESS)
-		return;
-	ecr->res = res;
-	complete(&ecr->completion);
-}
-
 int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
 			   u64 lblk_num, struct page *src_page,
 			   struct page *dest_page, unsigned int len,
@@ -151,7 +136,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
 		u8 padding[FS_IV_SIZE - sizeof(__le64)];
 	} iv;
 	struct skcipher_request *req = NULL;
-	DECLARE_FS_COMPLETION_RESULT(ecr);
+	DECLARE_CRYPTO_WAIT(wait);
 	struct scatterlist dst, src;
 	struct fscrypt_info *ci = inode->i_crypt_info;
 	struct crypto_skcipher *tfm = ci->ci_ctfm;
@@ -179,7 +164,7 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
 
 	skcipher_request_set_callback(
 		req, CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
-		page_crypt_complete, &ecr);
+		crypto_req_done, &wait);
 
 	sg_init_table(&dst, 1);
 	sg_set_page(&dst, dest_page, len, offs);
@@ -187,14 +172,9 @@ int fscrypt_do_page_crypto(const struct inode *inode, fscrypt_direction_t rw,
 	sg_set_page(&src, src_page, len, offs);
 	skcipher_request_set_crypt(req, &src, &dst, len, &iv);
 	if (rw == FS_DECRYPT)
-		res = crypto_skcipher_decrypt(req);
+		res = crypto_wait_req(crypto_skcipher_decrypt(req), &wait);
 	else
-		res = crypto_skcipher_encrypt(req);
-	if (res == -EINPROGRESS || res == -EBUSY) {
-		BUG_ON(req->base.data != &ecr);
-		wait_for_completion(&ecr.completion);
-		res = ecr.res;
-	}
+		res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
 	skcipher_request_free(req);
 	if (res) {
 		printk_ratelimited(KERN_ERR
@@ -340,7 +320,7 @@ static int fscrypt_d_revalidate(struct dentry *dentry, unsigned int flags)
 		return -ECHILD;
 
 	dir = dget_parent(dentry);
-	if (!d_inode(dir)->i_sb->s_cop->is_encrypted(d_inode(dir))) {
+	if (!IS_ENCRYPTED(d_inode(dir))) {
 		dput(dir);
 		return 0;
 	}
@@ -410,11 +390,8 @@ int fscrypt_initialize(unsigned int cop_flags)
 {
 	int i, res = -ENOMEM;
 
-	/*
-	 * No need to allocate a bounce page pool if there already is one or
-	 * this FS won't use it.
-	 */
-	if (cop_flags & FS_CFLG_OWN_PAGES || fscrypt_bounce_page_pool)
+	/* No need to allocate a bounce page pool if this FS won't use it. */
+	if (cop_flags & FS_CFLG_OWN_PAGES)
 		return 0;
 
 	mutex_lock(&fscrypt_init_mutex);
diff --git a/fs/crypto/fname.c b/fs/crypto/fname.c
index ad9f814fdead..305541bcd108 100644
--- a/fs/crypto/fname.c
+++ b/fs/crypto/fname.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This contains functions for filename crypto management
  *
@@ -15,21 +16,6 @@
 #include "fscrypt_private.h"
 
 /**
- * fname_crypt_complete() - completion callback for filename crypto
- * @req: The asynchronous cipher request context
- * @res: The result of the cipher operation
- */
-static void fname_crypt_complete(struct crypto_async_request *req, int res)
-{
-	struct fscrypt_completion_result *ecr = req->data;
-
-	if (res == -EINPROGRESS)
-		return;
-	ecr->res = res;
-	complete(&ecr->completion);
-}
-
-/**
  * fname_encrypt() - encrypt a filename
  *
  * The caller must have allocated sufficient memory for the @oname string.
@@ -40,7 +26,7 @@ static int fname_encrypt(struct inode *inode,
 			const struct qstr *iname, struct fscrypt_str *oname)
 {
 	struct skcipher_request *req = NULL;
-	DECLARE_FS_COMPLETION_RESULT(ecr);
+	DECLARE_CRYPTO_WAIT(wait);
 	struct fscrypt_info *ci = inode->i_crypt_info;
 	struct crypto_skcipher *tfm = ci->ci_ctfm;
 	int res = 0;
@@ -76,17 +62,12 @@ static int fname_encrypt(struct inode *inode,
 	}
 	skcipher_request_set_callback(req,
 			CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
-			fname_crypt_complete, &ecr);
+			crypto_req_done, &wait);
 	sg_init_one(&sg, oname->name, cryptlen);
 	skcipher_request_set_crypt(req, &sg, &sg, cryptlen, iv);
 
 	/* Do the encryption */
-	res = crypto_skcipher_encrypt(req);
-	if (res == -EINPROGRESS || res == -EBUSY) {
-		/* Request is being completed asynchronously; wait for it */
-		wait_for_completion(&ecr.completion);
-		res = ecr.res;
-	}
+	res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
 	skcipher_request_free(req);
 	if (res < 0) {
 		printk_ratelimited(KERN_ERR
@@ -110,7 +91,7 @@ static int fname_decrypt(struct inode *inode,
 				struct fscrypt_str *oname)
 {
 	struct skcipher_request *req = NULL;
-	DECLARE_FS_COMPLETION_RESULT(ecr);
+	DECLARE_CRYPTO_WAIT(wait);
 	struct scatterlist src_sg, dst_sg;
 	struct fscrypt_info *ci = inode->i_crypt_info;
 	struct crypto_skcipher *tfm = ci->ci_ctfm;
@@ -131,7 +112,7 @@ static int fname_decrypt(struct inode *inode,
 	}
 	skcipher_request_set_callback(req,
 		CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
-		fname_crypt_complete, &ecr);
+		crypto_req_done, &wait);
 
 	/* Initialize IV */
 	memset(iv, 0, FS_CRYPTO_BLOCK_SIZE);
@@ -140,11 +121,7 @@ static int fname_decrypt(struct inode *inode,
 	sg_init_one(&src_sg, iname->name, iname->len);
 	sg_init_one(&dst_sg, oname->name, oname->len);
 	skcipher_request_set_crypt(req, &src_sg, &dst_sg, iname->len, iv);
-	res = crypto_skcipher_decrypt(req);
-	if (res == -EINPROGRESS || res == -EBUSY) {
-		wait_for_completion(&ecr.completion);
-		res = ecr.res;
-	}
+	res = crypto_wait_req(crypto_skcipher_decrypt(req), &wait);
 	skcipher_request_free(req);
 	if (res < 0) {
 		printk_ratelimited(KERN_ERR
@@ -382,8 +359,7 @@ int fscrypt_setup_filename(struct inode *dir, const struct qstr *iname,
 	memset(fname, 0, sizeof(struct fscrypt_name));
 	fname->usr_fname = iname;
 
-	if (!dir->i_sb->s_cop->is_encrypted(dir) ||
-				fscrypt_is_dot_dotdot(iname)) {
+	if (!IS_ENCRYPTED(dir) || fscrypt_is_dot_dotdot(iname)) {
 		fname->disk_name.name = (unsigned char *)iname->name;
 		fname->disk_name.len = iname->len;
 		return 0;
diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h
index a1d5021c31ef..c0b4f5597e1a 100644
--- a/fs/crypto/fscrypt_private.h
+++ b/fs/crypto/fscrypt_private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fscrypt_private.h
  *
@@ -11,7 +12,8 @@
 #ifndef _FSCRYPT_PRIVATE_H
 #define _FSCRYPT_PRIVATE_H
 
-#include <linux/fscrypt_supp.h>
+#define __FS_HAS_ENCRYPTION 1
+#include <linux/fscrypt.h>
 #include <crypto/hash.h>
 
 /* Encryption parameters */
@@ -69,16 +71,6 @@ typedef enum {
 #define FS_CTX_REQUIRES_FREE_ENCRYPT_FL		0x00000001
 #define FS_CTX_HAS_BOUNCE_BUFFER_FL		0x00000002
 
-struct fscrypt_completion_result {
-	struct completion completion;
-	int res;
-};
-
-#define DECLARE_FS_COMPLETION_RESULT(ecr) \
-	struct fscrypt_completion_result ecr = { \
-		COMPLETION_INITIALIZER_ONSTACK((ecr).completion), 0 }
-
-
 /* crypto.c */
 extern int fscrypt_initialize(unsigned int cop_flags);
 extern struct workqueue_struct *fscrypt_read_workqueue;
diff --git a/fs/crypto/hooks.c b/fs/crypto/hooks.c
new file mode 100644
index 000000000000..9f5fb2eb9cf7
--- /dev/null
+++ b/fs/crypto/hooks.c
@@ -0,0 +1,112 @@
+/*
+ * fs/crypto/hooks.c
+ *
+ * Encryption hooks for higher-level filesystem operations.
+ */
+
+#include <linux/ratelimit.h>
+#include "fscrypt_private.h"
+
+/**
+ * fscrypt_file_open - prepare to open a possibly-encrypted regular file
+ * @inode: the inode being opened
+ * @filp: the struct file being set up
+ *
+ * Currently, an encrypted regular file can only be opened if its encryption key
+ * is available; access to the raw encrypted contents is not supported.
+ * Therefore, we first set up the inode's encryption key (if not already done)
+ * and return an error if it's unavailable.
+ *
+ * We also verify that if the parent directory (from the path via which the file
+ * is being opened) is encrypted, then the inode being opened uses the same
+ * encryption policy.  This is needed as part of the enforcement that all files
+ * in an encrypted directory tree use the same encryption policy, as a
+ * protection against certain types of offline attacks.  Note that this check is
+ * needed even when opening an *unencrypted* file, since it's forbidden to have
+ * an unencrypted file in an encrypted directory.
+ *
+ * Return: 0 on success, -ENOKEY if the key is missing, or another -errno code
+ */
+int fscrypt_file_open(struct inode *inode, struct file *filp)
+{
+	int err;
+	struct dentry *dir;
+
+	err = fscrypt_require_key(inode);
+	if (err)
+		return err;
+
+	dir = dget_parent(file_dentry(filp));
+	if (IS_ENCRYPTED(d_inode(dir)) &&
+	    !fscrypt_has_permitted_context(d_inode(dir), inode)) {
+		pr_warn_ratelimited("fscrypt: inconsistent encryption contexts: %lu/%lu",
+				    d_inode(dir)->i_ino, inode->i_ino);
+		err = -EPERM;
+	}
+	dput(dir);
+	return err;
+}
+EXPORT_SYMBOL_GPL(fscrypt_file_open);
+
+int __fscrypt_prepare_link(struct inode *inode, struct inode *dir)
+{
+	int err;
+
+	err = fscrypt_require_key(dir);
+	if (err)
+		return err;
+
+	if (!fscrypt_has_permitted_context(dir, inode))
+		return -EPERM;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__fscrypt_prepare_link);
+
+int __fscrypt_prepare_rename(struct inode *old_dir, struct dentry *old_dentry,
+			     struct inode *new_dir, struct dentry *new_dentry,
+			     unsigned int flags)
+{
+	int err;
+
+	err = fscrypt_require_key(old_dir);
+	if (err)
+		return err;
+
+	err = fscrypt_require_key(new_dir);
+	if (err)
+		return err;
+
+	if (old_dir != new_dir) {
+		if (IS_ENCRYPTED(new_dir) &&
+		    !fscrypt_has_permitted_context(new_dir,
+						   d_inode(old_dentry)))
+			return -EPERM;
+
+		if ((flags & RENAME_EXCHANGE) &&
+		    IS_ENCRYPTED(old_dir) &&
+		    !fscrypt_has_permitted_context(old_dir,
+						   d_inode(new_dentry)))
+			return -EPERM;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__fscrypt_prepare_rename);
+
+int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry)
+{
+	int err = fscrypt_get_encryption_info(dir);
+
+	if (err)
+		return err;
+
+	if (fscrypt_has_encryption_key(dir)) {
+		spin_lock(&dentry->d_lock);
+		dentry->d_flags |= DCACHE_ENCRYPTED_WITH_KEY;
+		spin_unlock(&dentry->d_lock);
+	}
+
+	d_set_d_op(dentry, &fscrypt_d_ops);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(__fscrypt_prepare_lookup);
diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index 018c588c7ac3..5e6e846f5a24 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * key management facility for FS encryption support.
  *
@@ -17,17 +18,6 @@
 
 static struct crypto_shash *essiv_hash_tfm;
 
-static void derive_crypt_complete(struct crypto_async_request *req, int rc)
-{
-	struct fscrypt_completion_result *ecr = req->data;
-
-	if (rc == -EINPROGRESS)
-		return;
-
-	ecr->res = rc;
-	complete(&ecr->completion);
-}
-
 /**
  * derive_key_aes() - Derive a key using AES-128-ECB
  * @deriving_key: Encryption key used for derivation.
@@ -42,7 +32,7 @@ static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE],
 {
 	int res = 0;
 	struct skcipher_request *req = NULL;
-	DECLARE_FS_COMPLETION_RESULT(ecr);
+	DECLARE_CRYPTO_WAIT(wait);
 	struct scatterlist src_sg, dst_sg;
 	struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0);
 
@@ -59,7 +49,7 @@ static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE],
 	}
 	skcipher_request_set_callback(req,
 			CRYPTO_TFM_REQ_MAY_BACKLOG | CRYPTO_TFM_REQ_MAY_SLEEP,
-			derive_crypt_complete, &ecr);
+			crypto_req_done, &wait);
 	res = crypto_skcipher_setkey(tfm, deriving_key,
 					FS_AES_128_ECB_KEY_SIZE);
 	if (res < 0)
@@ -69,11 +59,7 @@ static int derive_key_aes(u8 deriving_key[FS_AES_128_ECB_KEY_SIZE],
 	sg_init_one(&dst_sg, derived_raw_key, source_key->size);
 	skcipher_request_set_crypt(req, &src_sg, &dst_sg, source_key->size,
 				   NULL);
-	res = crypto_skcipher_encrypt(req);
-	if (res == -EINPROGRESS || res == -EBUSY) {
-		wait_for_completion(&ecr.completion);
-		res = ecr.res;
-	}
+	res = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
 out:
 	skcipher_request_free(req);
 	crypto_free_skcipher(tfm);
@@ -109,6 +95,11 @@ static int validate_user_key(struct fscrypt_info *crypt_info,
 		goto out;
 	}
 	ukp = user_key_payload_locked(keyring_key);
+	if (!ukp) {
+		/* key was revoked before we acquired its semaphore */
+		res = -EKEYREVOKED;
+		goto out;
+	}
 	if (ukp->datalen != sizeof(struct fscrypt_key)) {
 		res = -EINVAL;
 		goto out;
@@ -268,7 +259,7 @@ int fscrypt_get_encryption_info(struct inode *inode)
 	res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
 	if (res < 0) {
 		if (!fscrypt_dummy_context_enabled(inode) ||
-		    inode->i_sb->s_cop->is_encrypted(inode))
+		    IS_ENCRYPTED(inode))
 			return res;
 		/* Fake up a context for an unencrypted directory */
 		memset(&ctx, 0, sizeof(ctx));
@@ -368,7 +359,7 @@ void fscrypt_put_encryption_info(struct inode *inode, struct fscrypt_info *ci)
 	struct fscrypt_info *prev;
 
 	if (ci == NULL)
-		ci = ACCESS_ONCE(inode->i_crypt_info);
+		ci = READ_ONCE(inode->i_crypt_info);
 	if (ci == NULL)
 		return;
 
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index ce07a86200f3..c6d431a5cce9 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Encryption policy functions for per-file encryption support.
  *
@@ -109,7 +110,7 @@ int fscrypt_ioctl_get_policy(struct file *filp, void __user *arg)
 	struct fscrypt_policy policy;
 	int res;
 
-	if (!inode->i_sb->s_cop->is_encrypted(inode))
+	if (!IS_ENCRYPTED(inode))
 		return -ENODATA;
 
 	res = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
@@ -166,11 +167,11 @@ int fscrypt_has_permitted_context(struct inode *parent, struct inode *child)
 		return 1;
 
 	/* No restrictions if the parent directory is unencrypted */
-	if (!cops->is_encrypted(parent))
+	if (!IS_ENCRYPTED(parent))
 		return 1;
 
 	/* Encrypted directories must not contain unencrypted files */
-	if (!cops->is_encrypted(child))
+	if (!IS_ENCRYPTED(child))
 		return 0;
 
 	/*
diff --git a/fs/dax.c b/fs/dax.c
index 6afcacb3a87b..f3a44a7c14b3 100644
--- a/fs/dax.c
+++ b/fs/dax.c
@@ -734,7 +734,7 @@ static int dax_writeback_one(struct block_device *bdev,
 	}
 
 	dax_mapping_entry_mkclean(mapping, index, pfn_t_to_pfn(pfn));
-	dax_flush(dax_dev, pgoff, kaddr, size);
+	dax_flush(dax_dev, kaddr, size);
 	/*
 	 * After we have flushed the cache, we can clear the dirty tag. There
 	 * cannot be new dirty data in the pfn after the flush has completed as
@@ -929,7 +929,7 @@ int __dax_zero_page_range(struct block_device *bdev,
 			return rc;
 		}
 		memset(kaddr + offset, 0, size);
-		dax_flush(dax_dev, pgoff, kaddr + offset, size);
+		dax_flush(dax_dev, kaddr + offset, size);
 		dax_read_unlock(id);
 	}
 	return 0;
@@ -938,7 +938,7 @@ EXPORT_SYMBOL_GPL(__dax_zero_page_range);
 
 static sector_t dax_iomap_sector(struct iomap *iomap, loff_t pos)
 {
-	return iomap->blkno + (((pos & PAGE_MASK) - iomap->offset) >> 9);
+	return (iomap->addr + (pos & PAGE_MASK) - iomap->offset) >> 9;
 }
 
 static loff_t
diff --git a/fs/dcache.c b/fs/dcache.c
index f90141387f01..bcc9f6981569 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -231,7 +231,7 @@ static inline int dentry_cmp(const struct dentry *dentry, const unsigned char *c
 {
 	/*
 	 * Be careful about RCU walk racing with rename:
-	 * use 'lockless_dereference' to fetch the name pointer.
+	 * use 'READ_ONCE' to fetch the name pointer.
 	 *
 	 * NOTE! Even if a rename will mean that the length
 	 * was not loaded atomically, we don't care. The
@@ -245,7 +245,7 @@ static inline int dentry_cmp(const struct dentry *dentry, const unsigned char *c
 	 * early because the data cannot match (there can
 	 * be no NUL in the ct/tcount data)
 	 */
-	const unsigned char *cs = lockless_dereference(dentry->d_name.name);
+	const unsigned char *cs = READ_ONCE(dentry->d_name.name);
 
 	return dentry_string_cmp(cs, ct, tcount);
 }
@@ -630,7 +630,7 @@ static inline struct dentry *lock_parent(struct dentry *dentry)
 	rcu_read_lock();
 	spin_unlock(&dentry->d_lock);
 again:
-	parent = ACCESS_ONCE(dentry->d_parent);
+	parent = READ_ONCE(dentry->d_parent);
 	spin_lock(&parent->d_lock);
 	/*
 	 * We can't blindly lock dentry until we are sure
@@ -721,7 +721,7 @@ static inline bool fast_dput(struct dentry *dentry)
 	 * around with a zero refcount.
 	 */
 	smp_rmb();
-	d_flags = ACCESS_ONCE(dentry->d_flags);
+	d_flags = READ_ONCE(dentry->d_flags);
 	d_flags &= DCACHE_REFERENCED | DCACHE_LRU_LIST | DCACHE_DISCONNECTED;
 
 	/* Nothing to do? Dropping the reference was all we needed? */
@@ -850,11 +850,11 @@ struct dentry *dget_parent(struct dentry *dentry)
 	 * locking.
 	 */
 	rcu_read_lock();
-	ret = ACCESS_ONCE(dentry->d_parent);
+	ret = READ_ONCE(dentry->d_parent);
 	gotref = lockref_get_not_zero(&ret->d_lockref);
 	rcu_read_unlock();
 	if (likely(gotref)) {
-		if (likely(ret == ACCESS_ONCE(dentry->d_parent)))
+		if (likely(ret == READ_ONCE(dentry->d_parent)))
 			return ret;
 		dput(ret);
 	}
@@ -3040,7 +3040,7 @@ static int prepend(char **buffer, int *buflen, const char *str, int namelen)
  * @buflen: allocated length of the buffer
  * @name:   name string and length qstr structure
  *
- * With RCU path tracing, it may race with d_move(). Use ACCESS_ONCE() to
+ * With RCU path tracing, it may race with d_move(). Use READ_ONCE() to
  * make sure that either the old or the new name pointer and length are
  * fetched. However, there may be mismatch between length and pointer.
  * The length cannot be trusted, we need to copy it byte-by-byte until
@@ -3054,8 +3054,8 @@ static int prepend(char **buffer, int *buflen, const char *str, int namelen)
  */
 static int prepend_name(char **buffer, int *buflen, const struct qstr *name)
 {
-	const char *dname = ACCESS_ONCE(name->name);
-	u32 dlen = ACCESS_ONCE(name->len);
+	const char *dname = READ_ONCE(name->name);
+	u32 dlen = READ_ONCE(name->len);
 	char *p;
 
 	smp_read_barrier_depends();
@@ -3120,7 +3120,7 @@ restart:
 		struct dentry * parent;
 
 		if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
-			struct mount *parent = ACCESS_ONCE(mnt->mnt_parent);
+			struct mount *parent = READ_ONCE(mnt->mnt_parent);
 			/* Escaped? */
 			if (dentry != vfsmnt->mnt_root) {
 				bptr = *buffer;
@@ -3130,7 +3130,7 @@ restart:
 			}
 			/* Global root? */
 			if (mnt != parent) {
-				dentry = ACCESS_ONCE(mnt->mnt_mountpoint);
+				dentry = READ_ONCE(mnt->mnt_mountpoint);
 				mnt = parent;
 				vfsmnt = &mnt->mnt;
 				continue;
diff --git a/fs/direct-io.c b/fs/direct-io.c
index 5fa2211e49ae..3aafb3343a65 100644
--- a/fs/direct-io.c
+++ b/fs/direct-io.c
@@ -45,6 +45,12 @@
 #define DIO_PAGES	64
 
 /*
+ * Flags for dio_complete()
+ */
+#define DIO_COMPLETE_ASYNC		0x01	/* This is async IO */
+#define DIO_COMPLETE_INVALIDATE		0x02	/* Can invalidate pages */
+
+/*
  * This code generally works in units of "dio_blocks".  A dio_block is
  * somewhere between the hard sector size and the filesystem block size.  it
  * is determined on a per-invocation basis.   When talking to the filesystem
@@ -225,10 +231,11 @@ static inline struct page *dio_get_page(struct dio *dio,
  * filesystems can use it to hold additional state between get_block calls and
  * dio_complete.
  */
-static ssize_t dio_complete(struct dio *dio, ssize_t ret, bool is_async)
+static ssize_t dio_complete(struct dio *dio, ssize_t ret, unsigned int flags)
 {
 	loff_t offset = dio->iocb->ki_pos;
 	ssize_t transferred = 0;
+	int err;
 
 	/*
 	 * AIO submission can race with bio completion to get here while
@@ -259,18 +266,37 @@ static ssize_t dio_complete(struct dio *dio, ssize_t ret, bool is_async)
 		ret = transferred;
 
 	if (dio->end_io) {
-		int err;
-
 		// XXX: ki_pos??
 		err = dio->end_io(dio->iocb, offset, ret, dio->private);
 		if (err)
 			ret = err;
 	}
 
+	/*
+	 * Try again to invalidate clean pages which might have been cached by
+	 * non-direct readahead, or faulted in by get_user_pages() if the source
+	 * of the write was an mmap'ed region of the file we're writing.  Either
+	 * one is a pretty crazy thing to do, so we don't support it 100%.  If
+	 * this invalidation fails, tough, the write still worked...
+	 *
+	 * And this page cache invalidation has to be after dio->end_io(), as
+	 * some filesystems convert unwritten extents to real allocations in
+	 * end_io() when necessary, otherwise a racing buffer read would cache
+	 * zeros from unwritten extents.
+	 */
+	if (flags & DIO_COMPLETE_INVALIDATE &&
+	    ret > 0 && dio->op == REQ_OP_WRITE &&
+	    dio->inode->i_mapping->nrpages) {
+		err = invalidate_inode_pages2_range(dio->inode->i_mapping,
+					offset >> PAGE_SHIFT,
+					(offset + ret - 1) >> PAGE_SHIFT);
+		WARN_ON_ONCE(err);
+	}
+
 	if (!(dio->flags & DIO_SKIP_DIO_COUNT))
 		inode_dio_end(dio->inode);
 
-	if (is_async) {
+	if (flags & DIO_COMPLETE_ASYNC) {
 		/*
 		 * generic_write_sync expects ki_pos to have been updated
 		 * already, but the submission path only does this for
@@ -291,7 +317,7 @@ static void dio_aio_complete_work(struct work_struct *work)
 {
 	struct dio *dio = container_of(work, struct dio, complete_work);
 
-	dio_complete(dio, 0, true);
+	dio_complete(dio, 0, DIO_COMPLETE_ASYNC | DIO_COMPLETE_INVALIDATE);
 }
 
 static blk_status_t dio_bio_complete(struct dio *dio, struct bio *bio);
@@ -304,6 +330,7 @@ static void dio_bio_end_aio(struct bio *bio)
 	struct dio *dio = bio->bi_private;
 	unsigned long remaining;
 	unsigned long flags;
+	bool defer_completion = false;
 
 	/* cleanup the bio */
 	dio_bio_complete(dio, bio);
@@ -315,12 +342,24 @@ static void dio_bio_end_aio(struct bio *bio)
 	spin_unlock_irqrestore(&dio->bio_lock, flags);
 
 	if (remaining == 0) {
-		if (dio->result && dio->defer_completion) {
+		/*
+		 * Defer completion when defer_completion is set or
+		 * when the inode has pages mapped and this is AIO write.
+		 * We need to invalidate those pages because there is a
+		 * chance they contain stale data in the case buffered IO
+		 * went in between AIO submission and completion into the
+		 * same region.
+		 */
+		if (dio->result)
+			defer_completion = dio->defer_completion ||
+					   (dio->op == REQ_OP_WRITE &&
+					    dio->inode->i_mapping->nrpages);
+		if (defer_completion) {
 			INIT_WORK(&dio->complete_work, dio_aio_complete_work);
 			queue_work(dio->inode->i_sb->s_dio_done_wq,
 				   &dio->complete_work);
 		} else {
-			dio_complete(dio, 0, true);
+			dio_complete(dio, 0, DIO_COMPLETE_ASYNC);
 		}
 	}
 }
@@ -458,7 +497,7 @@ static struct bio *dio_await_one(struct dio *dio)
 		dio->waiter = current;
 		spin_unlock_irqrestore(&dio->bio_lock, flags);
 		if (!(dio->iocb->ki_flags & IOCB_HIPRI) ||
-		    !blk_mq_poll(dio->bio_disk->queue, dio->bio_cookie))
+		    !blk_poll(dio->bio_disk->queue, dio->bio_cookie))
 			io_schedule();
 		/* wake up sets us TASK_RUNNING */
 		spin_lock_irqsave(&dio->bio_lock, flags);
@@ -838,7 +877,8 @@ out:
 	 */
 	if (sdio->boundary) {
 		ret = dio_send_cur_page(dio, sdio, map_bh);
-		dio_bio_submit(dio, sdio);
+		if (sdio->bio)
+			dio_bio_submit(dio, sdio);
 		put_page(sdio->cur_page);
 		sdio->cur_page = NULL;
 	}
@@ -1112,7 +1152,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
 		      get_block_t get_block, dio_iodone_t end_io,
 		      dio_submit_t submit_io, int flags)
 {
-	unsigned i_blkbits = ACCESS_ONCE(inode->i_blkbits);
+	unsigned i_blkbits = READ_ONCE(inode->i_blkbits);
 	unsigned blkbits = i_blkbits;
 	unsigned blocksize_mask = (1 << blkbits) - 1;
 	ssize_t retval = -EINVAL;
@@ -1210,10 +1250,19 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
 	 * For AIO O_(D)SYNC writes we need to defer completions to a workqueue
 	 * so that we can call ->fsync.
 	 */
-	if (dio->is_async && iov_iter_rw(iter) == WRITE &&
-	    ((iocb->ki_filp->f_flags & O_DSYNC) ||
-	     IS_SYNC(iocb->ki_filp->f_mapping->host))) {
-		retval = dio_set_defer_completion(dio);
+	if (dio->is_async && iov_iter_rw(iter) == WRITE) {
+		retval = 0;
+		if ((iocb->ki_filp->f_flags & O_DSYNC) ||
+		    IS_SYNC(iocb->ki_filp->f_mapping->host))
+			retval = dio_set_defer_completion(dio);
+		else if (!dio->inode->i_sb->s_dio_done_wq) {
+			/*
+			 * In case of AIO write racing with buffered read we
+			 * need to defer completion. We can't decide this now,
+			 * however the workqueue needs to be initialized here.
+			 */
+			retval = sb_init_dio_done_wq(dio->inode->i_sb);
+		}
 		if (retval) {
 			/*
 			 * We grab i_mutex only for reads so we don't have
@@ -1322,7 +1371,7 @@ do_blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
 		dio_await_completion(dio);
 
 	if (drop_refcount(dio) == 0) {
-		retval = dio_complete(dio, retval, false);
+		retval = dio_complete(dio, retval, DIO_COMPLETE_INVALIDATE);
 	} else
 		BUG_ON(retval != -EIOCBQUEUED);
 
diff --git a/fs/dlm/Makefile b/fs/dlm/Makefile
index ca1c9124c8ce..3545fdafc6fb 100644
--- a/fs/dlm/Makefile
+++ b/fs/dlm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_DLM) +=		dlm.o
 dlm-y :=			ast.o \
 				config.o \
diff --git a/fs/dlm/ast.c b/fs/dlm/ast.c
index 07fed838d8fd..562fa8c3edff 100644
--- a/fs/dlm/ast.c
+++ b/fs/dlm/ast.c
@@ -181,6 +181,8 @@ void dlm_add_cb(struct dlm_lkb *lkb, uint32_t flags, int mode, int status,
 
 	spin_lock(&dlm_cb_seq_spin);
 	new_seq = ++dlm_cb_seq;
+	if (!dlm_cb_seq)
+		new_seq = ++dlm_cb_seq;
 	spin_unlock(&dlm_cb_seq_spin);
 
 	if (lkb->lkb_flags & DLM_IFL_USER) {
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 7211e826d90d..1270551d24e3 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -282,44 +282,44 @@ static struct configfs_item_operations node_ops = {
 	.release = release_node,
 };
 
-static struct config_item_type clusters_type = {
+static const struct config_item_type clusters_type = {
 	.ct_group_ops = &clusters_ops,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type cluster_type = {
+static const struct config_item_type cluster_type = {
 	.ct_item_ops = &cluster_ops,
 	.ct_attrs = cluster_attrs,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type spaces_type = {
+static const struct config_item_type spaces_type = {
 	.ct_group_ops = &spaces_ops,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type space_type = {
+static const struct config_item_type space_type = {
 	.ct_item_ops = &space_ops,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type comms_type = {
+static const struct config_item_type comms_type = {
 	.ct_group_ops = &comms_ops,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type comm_type = {
+static const struct config_item_type comm_type = {
 	.ct_item_ops = &comm_ops,
 	.ct_attrs = comm_attrs,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type nodes_type = {
+static const struct config_item_type nodes_type = {
 	.ct_group_ops = &nodes_ops,
 	.ct_owner = THIS_MODULE,
 };
 
-static struct config_item_type node_type = {
+static const struct config_item_type node_type = {
 	.ct_item_ops = &node_ops,
 	.ct_attrs = node_attrs,
 	.ct_owner = THIS_MODULE,
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index d4aaddec1b16..cc91963683de 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -1003,7 +1003,6 @@ int dlm_master_lookup(struct dlm_ls *ls, int from_nodeid, char *name, int len,
 		if (r->res_master_nodeid == our_nodeid) {
 			log_error(ls, "from_master %d our_master", from_nodeid);
 			dlm_dump_rsb(r);
-			dlm_send_rcom_lookup_dump(r, from_nodeid);
 			goto out_found;
 		}
 
@@ -2465,14 +2464,12 @@ static int can_be_granted(struct dlm_rsb *r, struct dlm_lkb *lkb, int now,
 		if (lkb->lkb_exflags & DLM_LKF_CONVDEADLK) {
 			lkb->lkb_grmode = DLM_LOCK_NL;
 			lkb->lkb_sbflags |= DLM_SBF_DEMOTED;
-		} else if (!(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) {
-			if (err)
-				*err = -EDEADLK;
-			else {
-				log_print("can_be_granted deadlock %x now %d",
-					  lkb->lkb_id, now);
-				dlm_dump_rsb(r);
-			}
+		} else if (err) {
+			*err = -EDEADLK;
+		} else {
+			log_print("can_be_granted deadlock %x now %d",
+				  lkb->lkb_id, now);
+			dlm_dump_rsb(r);
 		}
 		goto out;
 	}
@@ -2501,13 +2498,6 @@ static int can_be_granted(struct dlm_rsb *r, struct dlm_lkb *lkb, int now,
 	return rv;
 }
 
-/* FIXME: I don't think that can_be_granted() can/will demote or find deadlock
-   for locks pending on the convert list.  Once verified (watch for these
-   log_prints), we should be able to just call _can_be_granted() and not
-   bother with the demote/deadlk cases here (and there's no easy way to deal
-   with a deadlk here, we'd have to generate something like grant_lock with
-   the deadlk error.) */
-
 /* Returns the highest requested mode of all blocked conversions; sets
    cw if there's a blocked conversion to DLM_LOCK_CW. */
 
@@ -2545,9 +2535,22 @@ static int grant_pending_convert(struct dlm_rsb *r, int high, int *cw,
 		}
 
 		if (deadlk) {
-			log_print("WARN: pending deadlock %x node %d %s",
-				  lkb->lkb_id, lkb->lkb_nodeid, r->res_name);
-			dlm_dump_rsb(r);
+			/*
+			 * If DLM_LKB_NODLKWT flag is set and conversion
+			 * deadlock is detected, we request blocking AST and
+			 * down (or cancel) conversion.
+			 */
+			if (lkb->lkb_exflags & DLM_LKF_NODLCKWT) {
+				if (lkb->lkb_highbast < lkb->lkb_rqmode) {
+					queue_bast(r, lkb, lkb->lkb_rqmode);
+					lkb->lkb_highbast = lkb->lkb_rqmode;
+				}
+			} else {
+				log_print("WARN: pending deadlock %x node %d %s",
+					  lkb->lkb_id, lkb->lkb_nodeid,
+					  r->res_name);
+				dlm_dump_rsb(r);
+			}
 			continue;
 		}
 
@@ -3123,7 +3126,7 @@ static int do_convert(struct dlm_rsb *r, struct dlm_lkb *lkb)
 	   deadlock, so we leave it on the granted queue and return EDEADLK in
 	   the ast for the convert. */
 
-	if (deadlk) {
+	if (deadlk && !(lkb->lkb_exflags & DLM_LKF_NODLCKWT)) {
 		/* it's left on the granted queue */
 		revert_lock(r, lkb);
 		queue_cast(r, lkb, -EDEADLK);
diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 4813d0e0cd9b..05707850f93a 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -107,11 +107,11 @@ struct connection {
 	unsigned long flags;
 #define CF_READ_PENDING 1
 #define CF_WRITE_PENDING 2
-#define CF_CONNECT_PENDING 3
 #define CF_INIT_PENDING 4
 #define CF_IS_OTHERCON 5
 #define CF_CLOSE 6
 #define CF_APP_LIMITED 7
+#define CF_CLOSING 8
 	struct list_head writequeue;  /* List of outgoing writequeue_entries */
 	spinlock_t writequeue_lock;
 	int (*rx_action) (struct connection *);	/* What to do when active */
@@ -124,10 +124,6 @@ struct connection {
 	struct connection *othercon;
 	struct work_struct rwork; /* Receive workqueue */
 	struct work_struct swork; /* Send workqueue */
-	void (*orig_error_report)(struct sock *);
-	void (*orig_data_ready)(struct sock *);
-	void (*orig_state_change)(struct sock *);
-	void (*orig_write_space)(struct sock *);
 };
 #define sock2con(x) ((struct connection *)(x)->sk_user_data)
 
@@ -150,6 +146,13 @@ struct dlm_node_addr {
 	struct sockaddr_storage *addr[DLM_MAX_ADDR_COUNT];
 };
 
+static struct listen_sock_callbacks {
+	void (*sk_error_report)(struct sock *);
+	void (*sk_data_ready)(struct sock *);
+	void (*sk_state_change)(struct sock *);
+	void (*sk_write_space)(struct sock *);
+} listen_sock;
+
 static LIST_HEAD(dlm_node_addrs);
 static DEFINE_SPINLOCK(dlm_node_addrs_spin);
 
@@ -408,17 +411,23 @@ int dlm_lowcomms_addr(int nodeid, struct sockaddr_storage *addr, int len)
 /* Data available on socket or listen socket received a connect */
 static void lowcomms_data_ready(struct sock *sk)
 {
-	struct connection *con = sock2con(sk);
+	struct connection *con;
+
+	read_lock_bh(&sk->sk_callback_lock);
+	con = sock2con(sk);
 	if (con && !test_and_set_bit(CF_READ_PENDING, &con->flags))
 		queue_work(recv_workqueue, &con->rwork);
+	read_unlock_bh(&sk->sk_callback_lock);
 }
 
 static void lowcomms_write_space(struct sock *sk)
 {
-	struct connection *con = sock2con(sk);
+	struct connection *con;
 
+	read_lock_bh(&sk->sk_callback_lock);
+	con = sock2con(sk);
 	if (!con)
-		return;
+		goto out;
 
 	clear_bit(SOCK_NOSPACE, &con->sock->flags);
 
@@ -427,16 +436,17 @@ static void lowcomms_write_space(struct sock *sk)
 		clear_bit(SOCKWQ_ASYNC_NOSPACE, &con->sock->flags);
 	}
 
-	if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags))
-		queue_work(send_workqueue, &con->swork);
+	queue_work(send_workqueue, &con->swork);
+out:
+	read_unlock_bh(&sk->sk_callback_lock);
 }
 
 static inline void lowcomms_connect_sock(struct connection *con)
 {
 	if (test_bit(CF_CLOSE, &con->flags))
 		return;
-	if (!test_and_set_bit(CF_CONNECT_PENDING, &con->flags))
-		queue_work(send_workqueue, &con->swork);
+	queue_work(send_workqueue, &con->swork);
+	cond_resched();
 }
 
 static void lowcomms_state_change(struct sock *sk)
@@ -480,7 +490,7 @@ static void lowcomms_error_report(struct sock *sk)
 	if (con == NULL)
 		goto out;
 
-	orig_report = con->orig_error_report;
+	orig_report = listen_sock.sk_error_report;
 	if (con->sock == NULL ||
 	    kernel_getpeername(con->sock, (struct sockaddr *)&saddr, &buflen)) {
 		printk_ratelimited(KERN_ERR "dlm: node %d: socket error "
@@ -517,27 +527,31 @@ out:
 }
 
 /* Note: sk_callback_lock must be locked before calling this function. */
-static void save_callbacks(struct connection *con, struct sock *sk)
+static void save_listen_callbacks(struct socket *sock)
 {
-	con->orig_data_ready = sk->sk_data_ready;
-	con->orig_state_change = sk->sk_state_change;
-	con->orig_write_space = sk->sk_write_space;
-	con->orig_error_report = sk->sk_error_report;
+	struct sock *sk = sock->sk;
+
+	listen_sock.sk_data_ready = sk->sk_data_ready;
+	listen_sock.sk_state_change = sk->sk_state_change;
+	listen_sock.sk_write_space = sk->sk_write_space;
+	listen_sock.sk_error_report = sk->sk_error_report;
 }
 
-static void restore_callbacks(struct connection *con, struct sock *sk)
+static void restore_callbacks(struct socket *sock)
 {
+	struct sock *sk = sock->sk;
+
 	write_lock_bh(&sk->sk_callback_lock);
 	sk->sk_user_data = NULL;
-	sk->sk_data_ready = con->orig_data_ready;
-	sk->sk_state_change = con->orig_state_change;
-	sk->sk_write_space = con->orig_write_space;
-	sk->sk_error_report = con->orig_error_report;
+	sk->sk_data_ready = listen_sock.sk_data_ready;
+	sk->sk_state_change = listen_sock.sk_state_change;
+	sk->sk_write_space = listen_sock.sk_write_space;
+	sk->sk_error_report = listen_sock.sk_error_report;
 	write_unlock_bh(&sk->sk_callback_lock);
 }
 
 /* Make a socket active */
-static void add_sock(struct socket *sock, struct connection *con, bool save_cb)
+static void add_sock(struct socket *sock, struct connection *con)
 {
 	struct sock *sk = sock->sk;
 
@@ -545,8 +559,6 @@ static void add_sock(struct socket *sock, struct connection *con, bool save_cb)
 	con->sock = sock;
 
 	sk->sk_user_data = con;
-	if (save_cb)
-		save_callbacks(con, sk);
 	/* Install a data_ready callback */
 	sk->sk_data_ready = lowcomms_data_ready;
 	sk->sk_write_space = lowcomms_write_space;
@@ -579,17 +591,20 @@ static void make_sockaddr(struct sockaddr_storage *saddr, uint16_t port,
 static void close_connection(struct connection *con, bool and_other,
 			     bool tx, bool rx)
 {
-	clear_bit(CF_CONNECT_PENDING, &con->flags);
-	clear_bit(CF_WRITE_PENDING, &con->flags);
-	if (tx && cancel_work_sync(&con->swork))
+	bool closing = test_and_set_bit(CF_CLOSING, &con->flags);
+
+	if (tx && !closing && cancel_work_sync(&con->swork)) {
 		log_print("canceled swork for node %d", con->nodeid);
-	if (rx && cancel_work_sync(&con->rwork))
+		clear_bit(CF_WRITE_PENDING, &con->flags);
+	}
+	if (rx && !closing && cancel_work_sync(&con->rwork)) {
 		log_print("canceled rwork for node %d", con->nodeid);
+		clear_bit(CF_READ_PENDING, &con->flags);
+	}
 
 	mutex_lock(&con->sock_mutex);
 	if (con->sock) {
-		if (!test_bit(CF_IS_OTHERCON, &con->flags))
-			restore_callbacks(con, con->sock->sk);
+		restore_callbacks(con->sock);
 		sock_release(con->sock);
 		con->sock = NULL;
 	}
@@ -604,6 +619,7 @@ static void close_connection(struct connection *con, bool and_other,
 
 	con->retries = 0;
 	mutex_unlock(&con->sock_mutex);
+	clear_bit(CF_CLOSING, &con->flags);
 }
 
 /* Data received from remote end */
@@ -700,7 +716,7 @@ out_resched:
 out_close:
 	mutex_unlock(&con->sock_mutex);
 	if (ret != -EAGAIN) {
-		close_connection(con, false, true, false);
+		close_connection(con, true, true, false);
 		/* Reconnect when there is something to send */
 	}
 	/* Don't return success if we really got EOF */
@@ -728,22 +744,14 @@ static int tcp_accept_from_sock(struct connection *con)
 	}
 	mutex_unlock(&connections_lock);
 
-	memset(&peeraddr, 0, sizeof(peeraddr));
-	result = sock_create_lite(dlm_local_addr[0]->ss_family,
-				  SOCK_STREAM, IPPROTO_TCP, &newsock);
-	if (result < 0)
-		return -ENOMEM;
-
 	mutex_lock_nested(&con->sock_mutex, 0);
 
-	result = -ENOTCONN;
-	if (con->sock == NULL)
-		goto accept_err;
-
-	newsock->type = con->sock->type;
-	newsock->ops = con->sock->ops;
+	if (!con->sock) {
+		mutex_unlock(&con->sock_mutex);
+		return -ENOTCONN;
+	}
 
-	result = con->sock->ops->accept(con->sock, newsock, O_NONBLOCK, true);
+	result = kernel_accept(con->sock, &newsock, O_NONBLOCK);
 	if (result < 0)
 		goto accept_err;
 
@@ -794,31 +802,33 @@ static int tcp_accept_from_sock(struct connection *con)
 			othercon->nodeid = nodeid;
 			othercon->rx_action = receive_from_sock;
 			mutex_init(&othercon->sock_mutex);
+			INIT_LIST_HEAD(&othercon->writequeue);
+			spin_lock_init(&othercon->writequeue_lock);
 			INIT_WORK(&othercon->swork, process_send_sockets);
 			INIT_WORK(&othercon->rwork, process_recv_sockets);
 			set_bit(CF_IS_OTHERCON, &othercon->flags);
 		}
+		mutex_lock_nested(&othercon->sock_mutex, 2);
 		if (!othercon->sock) {
 			newcon->othercon = othercon;
-			othercon->sock = newsock;
-			newsock->sk->sk_user_data = othercon;
-			add_sock(newsock, othercon, false);
+			add_sock(newsock, othercon);
 			addcon = othercon;
+			mutex_unlock(&othercon->sock_mutex);
 		}
 		else {
 			printk("Extra connection from node %d attempted\n", nodeid);
 			result = -EAGAIN;
+			mutex_unlock(&othercon->sock_mutex);
 			mutex_unlock(&newcon->sock_mutex);
 			goto accept_err;
 		}
 	}
 	else {
-		newsock->sk->sk_user_data = newcon;
 		newcon->rx_action = receive_from_sock;
 		/* accept copies the sk after we've saved the callbacks, so we
 		   don't want to save them a second time or comm errors will
 		   result in calling sk_error_report recursively. */
-		add_sock(newsock, newcon, false);
+		add_sock(newsock, newcon);
 		addcon = newcon;
 	}
 
@@ -837,7 +847,8 @@ static int tcp_accept_from_sock(struct connection *con)
 
 accept_err:
 	mutex_unlock(&con->sock_mutex);
-	sock_release(newsock);
+	if (newsock)
+		sock_release(newsock);
 
 	if (result != -EAGAIN)
 		log_print("error accepting connection from node: %d", result);
@@ -911,26 +922,28 @@ static int sctp_accept_from_sock(struct connection *con)
 			othercon->nodeid = nodeid;
 			othercon->rx_action = receive_from_sock;
 			mutex_init(&othercon->sock_mutex);
+			INIT_LIST_HEAD(&othercon->writequeue);
+			spin_lock_init(&othercon->writequeue_lock);
 			INIT_WORK(&othercon->swork, process_send_sockets);
 			INIT_WORK(&othercon->rwork, process_recv_sockets);
 			set_bit(CF_IS_OTHERCON, &othercon->flags);
 		}
+		mutex_lock_nested(&othercon->sock_mutex, 2);
 		if (!othercon->sock) {
 			newcon->othercon = othercon;
-			othercon->sock = newsock;
-			newsock->sk->sk_user_data = othercon;
-			add_sock(newsock, othercon, false);
+			add_sock(newsock, othercon);
 			addcon = othercon;
+			mutex_unlock(&othercon->sock_mutex);
 		} else {
 			printk("Extra connection from node %d attempted\n", nodeid);
 			ret = -EAGAIN;
+			mutex_unlock(&othercon->sock_mutex);
 			mutex_unlock(&newcon->sock_mutex);
 			goto accept_err;
 		}
 	} else {
-		newsock->sk->sk_user_data = newcon;
 		newcon->rx_action = receive_from_sock;
-		add_sock(newsock, newcon, false);
+		add_sock(newsock, newcon);
 		addcon = newcon;
 	}
 
@@ -1055,10 +1068,9 @@ static void sctp_connect_to_sock(struct connection *con)
 	if (result < 0)
 		goto socket_err;
 
-	sock->sk->sk_user_data = con;
 	con->rx_action = receive_from_sock;
 	con->connect_action = sctp_connect_to_sock;
-	add_sock(sock, con, true);
+	add_sock(sock, con);
 
 	/* Bind to all addresses. */
 	if (sctp_bind_addrs(con, 0))
@@ -1079,7 +1091,6 @@ static void sctp_connect_to_sock(struct connection *con)
 	if (result == 0)
 		goto out;
 
-
 bind_err:
 	con->sock = NULL;
 	sock_release(sock);
@@ -1098,14 +1109,12 @@ socket_err:
 			  con->retries, result);
 		mutex_unlock(&con->sock_mutex);
 		msleep(1000);
-		clear_bit(CF_CONNECT_PENDING, &con->flags);
 		lowcomms_connect_sock(con);
 		return;
 	}
 
 out:
 	mutex_unlock(&con->sock_mutex);
-	set_bit(CF_WRITE_PENDING, &con->flags);
 }
 
 /* Connect a new socket to its peer */
@@ -1143,10 +1152,9 @@ static void tcp_connect_to_sock(struct connection *con)
 		goto out_err;
 	}
 
-	sock->sk->sk_user_data = con;
 	con->rx_action = receive_from_sock;
 	con->connect_action = tcp_connect_to_sock;
-	add_sock(sock, con, true);
+	add_sock(sock, con);
 
 	/* Bind to our cluster-known address connecting to avoid
 	   routing problems */
@@ -1194,13 +1202,11 @@ out_err:
 			  con->retries, result);
 		mutex_unlock(&con->sock_mutex);
 		msleep(1000);
-		clear_bit(CF_CONNECT_PENDING, &con->flags);
 		lowcomms_connect_sock(con);
 		return;
 	}
 out:
 	mutex_unlock(&con->sock_mutex);
-	set_bit(CF_WRITE_PENDING, &con->flags);
 	return;
 }
 
@@ -1235,10 +1241,12 @@ static struct socket *tcp_create_listen_sock(struct connection *con,
 	if (result < 0) {
 		log_print("Failed to set SO_REUSEADDR on socket: %d", result);
 	}
+	write_lock_bh(&sock->sk->sk_callback_lock);
 	sock->sk->sk_user_data = con;
-
+	save_listen_callbacks(sock);
 	con->rx_action = tcp_accept_from_sock;
 	con->connect_action = tcp_connect_to_sock;
+	write_unlock_bh(&sock->sk->sk_callback_lock);
 
 	/* Bind to our port */
 	make_sockaddr(saddr, dlm_config.ci_tcp_port, &addr_len);
@@ -1320,6 +1328,7 @@ static int sctp_listen_for_all(void)
 	write_lock_bh(&sock->sk->sk_callback_lock);
 	/* Init con struct */
 	sock->sk->sk_user_data = con;
+	save_listen_callbacks(sock);
 	con->sock = sock;
 	con->sock->sk->sk_data_ready = lowcomms_data_ready;
 	con->rx_action = sctp_accept_from_sock;
@@ -1366,7 +1375,7 @@ static int tcp_listen_for_all(void)
 
 	sock = tcp_create_listen_sock(con, dlm_local_addr[0]);
 	if (sock) {
-		add_sock(sock, con, true);
+		add_sock(sock, con);
 		result = 0;
 	}
 	else {
@@ -1456,9 +1465,7 @@ void dlm_lowcomms_commit_buffer(void *mh)
 	e->len = e->end - e->offset;
 	spin_unlock(&con->writequeue_lock);
 
-	if (!test_and_set_bit(CF_WRITE_PENDING, &con->flags)) {
-		queue_work(send_workqueue, &con->swork);
-	}
+	queue_work(send_workqueue, &con->swork);
 	return;
 
 out:
@@ -1527,13 +1534,16 @@ out:
 
 send_error:
 	mutex_unlock(&con->sock_mutex);
-	close_connection(con, false, false, true);
-	lowcomms_connect_sock(con);
+	close_connection(con, true, false, true);
+	/* Requeue the send work. When the work daemon runs again, it will try
+	   a new connection, then call this function again. */
+	queue_work(send_workqueue, &con->swork);
 	return;
 
 out_connect:
 	mutex_unlock(&con->sock_mutex);
-	lowcomms_connect_sock(con);
+	queue_work(send_workqueue, &con->swork);
+	cond_resched();
 }
 
 static void clean_one_writequeue(struct connection *con)
@@ -1593,9 +1603,10 @@ static void process_send_sockets(struct work_struct *work)
 {
 	struct connection *con = container_of(work, struct connection, swork);
 
-	if (test_and_clear_bit(CF_CONNECT_PENDING, &con->flags))
+	clear_bit(CF_WRITE_PENDING, &con->flags);
+	if (con->sock == NULL) /* not mutex protected so check it inside too */
 		con->connect_action(con);
-	if (test_and_clear_bit(CF_WRITE_PENDING, &con->flags))
+	if (!list_empty(&con->writequeue))
 		send_to_sock(con);
 }
 
@@ -1632,11 +1643,25 @@ static int work_start(void)
 	return 0;
 }
 
-static void stop_conn(struct connection *con)
+static void _stop_conn(struct connection *con, bool and_other)
 {
-	con->flags |= 0x0F;
-	if (con->sock && con->sock->sk)
+	mutex_lock(&con->sock_mutex);
+	set_bit(CF_CLOSE, &con->flags);
+	set_bit(CF_READ_PENDING, &con->flags);
+	set_bit(CF_WRITE_PENDING, &con->flags);
+	if (con->sock && con->sock->sk) {
+		write_lock_bh(&con->sock->sk->sk_callback_lock);
 		con->sock->sk->sk_user_data = NULL;
+		write_unlock_bh(&con->sock->sk->sk_callback_lock);
+	}
+	if (con->othercon && and_other)
+		_stop_conn(con->othercon, false);
+	mutex_unlock(&con->sock_mutex);
+}
+
+static void stop_conn(struct connection *con)
+{
+	_stop_conn(con, true);
 }
 
 static void free_conn(struct connection *con)
@@ -1648,6 +1673,36 @@ static void free_conn(struct connection *con)
 	kmem_cache_free(con_cache, con);
 }
 
+static void work_flush(void)
+{
+	int ok;
+	int i;
+	struct hlist_node *n;
+	struct connection *con;
+
+	flush_workqueue(recv_workqueue);
+	flush_workqueue(send_workqueue);
+	do {
+		ok = 1;
+		foreach_conn(stop_conn);
+		flush_workqueue(recv_workqueue);
+		flush_workqueue(send_workqueue);
+		for (i = 0; i < CONN_HASH_SIZE && ok; i++) {
+			hlist_for_each_entry_safe(con, n,
+						  &connection_hash[i], list) {
+				ok &= test_bit(CF_READ_PENDING, &con->flags);
+				ok &= test_bit(CF_WRITE_PENDING, &con->flags);
+				if (con->othercon) {
+					ok &= test_bit(CF_READ_PENDING,
+						       &con->othercon->flags);
+					ok &= test_bit(CF_WRITE_PENDING,
+						       &con->othercon->flags);
+				}
+			}
+		}
+	} while (!ok);
+}
+
 void dlm_lowcomms_stop(void)
 {
 	/* Set all the flags to prevent any
@@ -1655,11 +1710,10 @@ void dlm_lowcomms_stop(void)
 	*/
 	mutex_lock(&connections_lock);
 	dlm_allow_conn = 0;
-	foreach_conn(stop_conn);
+	mutex_unlock(&connections_lock);
+	work_flush();
 	clean_writequeues();
 	foreach_conn(free_conn);
-	mutex_unlock(&connections_lock);
-
 	work_stop();
 
 	kmem_cache_destroy(con_cache);
diff --git a/fs/dlm/rcom.c b/fs/dlm/rcom.c
index f3f5e72a29ba..70c625999d36 100644
--- a/fs/dlm/rcom.c
+++ b/fs/dlm/rcom.c
@@ -155,6 +155,7 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags)
 		goto out;
 	}
 
+retry:
 	error = create_rcom(ls, nodeid, DLM_RCOM_STATUS,
 			    sizeof(struct rcom_status), &rc, &mh);
 	if (error)
@@ -169,6 +170,8 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags)
 
 	error = dlm_wait_function(ls, &rcom_response);
 	disallow_sync_reply(ls);
+	if (error == -ETIMEDOUT)
+		goto retry;
 	if (error)
 		goto out;
 
@@ -276,6 +279,7 @@ int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name, int last_len)
 
 	ls->ls_recover_nodeid = nodeid;
 
+retry:
 	error = create_rcom(ls, nodeid, DLM_RCOM_NAMES, last_len, &rc, &mh);
 	if (error)
 		goto out;
@@ -288,6 +292,8 @@ int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name, int last_len)
 
 	error = dlm_wait_function(ls, &rcom_response);
 	disallow_sync_reply(ls);
+	if (error == -ETIMEDOUT)
+		goto retry;
  out:
 	return error;
 }
@@ -332,25 +338,6 @@ int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid)
 	return error;
 }
 
-int dlm_send_rcom_lookup_dump(struct dlm_rsb *r, int to_nodeid)
-{
-	struct dlm_rcom *rc;
-	struct dlm_mhandle *mh;
-	struct dlm_ls *ls = r->res_ls;
-	int error;
-
-	error = create_rcom(ls, to_nodeid, DLM_RCOM_LOOKUP, r->res_length,
-			    &rc, &mh);
-	if (error)
-		goto out;
-	memcpy(rc->rc_buf, r->res_name, r->res_length);
-	rc->rc_id = 0xFFFFFFFF;
-
-	send_rcom(ls, mh, rc);
- out:
-	return error;
-}
-
 static void receive_rcom_lookup(struct dlm_ls *ls, struct dlm_rcom *rc_in)
 {
 	struct dlm_rcom *rc;
@@ -362,6 +349,7 @@ static void receive_rcom_lookup(struct dlm_ls *ls, struct dlm_rcom *rc_in)
 	if (error)
 		return;
 
+	/* Old code would send this special id to trigger a debug dump. */
 	if (rc_in->rc_id == 0xFFFFFFFF) {
 		log_error(ls, "receive_rcom_lookup dump from %d", nodeid);
 		dlm_dump_rsb_name(ls, rc_in->rc_buf, len);
diff --git a/fs/dlm/rcom.h b/fs/dlm/rcom.h
index f8e243463c15..206723ab744d 100644
--- a/fs/dlm/rcom.h
+++ b/fs/dlm/rcom.h
@@ -17,7 +17,6 @@
 int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags);
 int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name,int last_len);
 int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid);
-int dlm_send_rcom_lookup_dump(struct dlm_rsb *r, int to_nodeid);
 int dlm_send_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb);
 void dlm_receive_rcom(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid);
 int dlm_send_ls_not_ready(int nodeid, struct dlm_rcom *rc_in);
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index eaea789bf97d..ce2aa54ca2e2 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -52,6 +52,10 @@ int dlm_wait_function(struct dlm_ls *ls, int (*testfn) (struct dlm_ls *ls))
 					dlm_config.ci_recover_timer * HZ);
 		if (rv)
 			break;
+		if (test_bit(LSFL_RCOM_WAIT, &ls->ls_flags)) {
+			log_debug(ls, "dlm_wait_function timed out");
+			return -ETIMEDOUT;
+		}
 	}
 
 	if (dlm_recovery_stopped(ls)) {
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index 6859b4bf971e..6f4e1d42d733 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -287,11 +287,23 @@ static int dlm_recoverd(void *arg)
 	set_bit(LSFL_RECOVER_LOCK, &ls->ls_flags);
 	wake_up(&ls->ls_recover_lock_wait);
 
-	while (!kthread_should_stop()) {
+	while (1) {
+		/*
+		 * We call kthread_should_stop() after set_current_state().
+		 * This is because it works correctly if kthread_stop() is
+		 * called just before set_current_state().
+		 */
 		set_current_state(TASK_INTERRUPTIBLE);
+		if (kthread_should_stop()) {
+			set_current_state(TASK_RUNNING);
+			break;
+		}
 		if (!test_bit(LSFL_RECOVER_WORK, &ls->ls_flags) &&
-		    !test_bit(LSFL_RECOVER_DOWN, &ls->ls_flags))
+		    !test_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) {
+			if (kthread_should_stop())
+				break;
 			schedule();
+		}
 		set_current_state(TASK_RUNNING);
 
 		if (test_and_clear_bit(LSFL_RECOVER_DOWN, &ls->ls_flags)) {
diff --git a/fs/drop_caches.c b/fs/drop_caches.c
index d72d52b90433..82377017130f 100644
--- a/fs/drop_caches.c
+++ b/fs/drop_caches.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement the manual drop-all-pagecache function
  */
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index 9c351bf757b2..3fbc0ff79699 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -84,11 +84,16 @@ struct ecryptfs_page_crypt_context {
 static inline struct ecryptfs_auth_tok *
 ecryptfs_get_encrypted_key_payload_data(struct key *key)
 {
-	if (key->type == &key_type_encrypted)
-		return (struct ecryptfs_auth_tok *)
-			(&((struct encrypted_key_payload *)key->payload.data[0])->payload_data);
-	else
+	struct encrypted_key_payload *payload;
+
+	if (key->type != &key_type_encrypted)
 		return NULL;
+
+	payload = key->payload.data[0];
+	if (!payload)
+		return ERR_PTR(-EKEYREVOKED);
+
+	return (struct ecryptfs_auth_tok *)payload->payload_data;
 }
 
 static inline struct key *ecryptfs_get_encrypted_key(char *sig)
@@ -114,12 +119,17 @@ static inline struct ecryptfs_auth_tok *
 ecryptfs_get_key_payload_data(struct key *key)
 {
 	struct ecryptfs_auth_tok *auth_tok;
+	struct user_key_payload *ukp;
 
 	auth_tok = ecryptfs_get_encrypted_key_payload_data(key);
-	if (!auth_tok)
-		return (struct ecryptfs_auth_tok *)user_key_payload_locked(key)->data;
-	else
+	if (auth_tok)
 		return auth_tok;
+
+	ukp = user_key_payload_locked(key);
+	if (!ukp)
+		return ERR_PTR(-EKEYREVOKED);
+
+	return (struct ecryptfs_auth_tok *)ukp->data;
 }
 
 #define ECRYPTFS_MAX_KEYSET_SIZE 1024
diff --git a/fs/ecryptfs/keystore.c b/fs/ecryptfs/keystore.c
index 3cf1546dca82..fa218cd64f74 100644
--- a/fs/ecryptfs/keystore.c
+++ b/fs/ecryptfs/keystore.c
@@ -459,7 +459,8 @@ out:
  * @auth_tok_key: key containing the authentication token
  * @auth_tok: authentication token
  *
- * Returns zero on valid auth tok; -EINVAL otherwise
+ * Returns zero on valid auth tok; -EINVAL if the payload is invalid; or
+ * -EKEYREVOKED if the key was revoked before we acquired its semaphore.
  */
 static int
 ecryptfs_verify_auth_tok_from_key(struct key *auth_tok_key,
@@ -468,6 +469,12 @@ ecryptfs_verify_auth_tok_from_key(struct key *auth_tok_key,
 	int rc = 0;
 
 	(*auth_tok) = ecryptfs_get_key_payload_data(auth_tok_key);
+	if (IS_ERR(*auth_tok)) {
+		rc = PTR_ERR(*auth_tok);
+		*auth_tok = NULL;
+		goto out;
+	}
+
 	if (ecryptfs_verify_version((*auth_tok)->version)) {
 		printk(KERN_ERR "Data structure version mismatch. Userspace "
 		       "tools must match eCryptfs kernel module with major "
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index 9014479d0160..6b801186baa5 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -568,8 +568,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
 	 *   1) The lower mount is ro
 	 *   2) The ecryptfs_encrypted_view mount option is specified
 	 */
-	if (path.dentry->d_sb->s_flags & MS_RDONLY ||
-	    mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
+	if (sb_rdonly(path.dentry->d_sb) || mount_crypt_stat->flags & ECRYPTFS_ENCRYPTED_VIEW_ENABLED)
 		s->s_flags |= MS_RDONLY;
 
 	s->s_maxbytes = path.dentry->d_sb->s_maxbytes;
diff --git a/fs/ecryptfs/read_write.c b/fs/ecryptfs/read_write.c
index 039e627194a9..c596e7c03424 100644
--- a/fs/ecryptfs/read_write.c
+++ b/fs/ecryptfs/read_write.c
@@ -47,7 +47,7 @@ int ecryptfs_write_lower(struct inode *ecryptfs_inode, char *data,
 	lower_file = ecryptfs_inode_to_private(ecryptfs_inode)->lower_file;
 	if (!lower_file)
 		return -EIO;
-	rc = kernel_write(lower_file, data, size, offset);
+	rc = kernel_write(lower_file, data, size, &offset);
 	mark_inode_dirty_sync(ecryptfs_inode);
 	return rc;
 }
@@ -237,7 +237,7 @@ int ecryptfs_read_lower(char *data, loff_t offset, size_t size,
 	lower_file = ecryptfs_inode_to_private(ecryptfs_inode)->lower_file;
 	if (!lower_file)
 		return -EIO;
-	return kernel_read(lower_file, offset, data, size);
+	return kernel_read(lower_file, data, size, &offset);
 }
 
 /**
diff --git a/fs/efs/dir.c b/fs/efs/dir.c
index a7be96e5f1cb..f892ac7c2a35 100644
--- a/fs/efs/dir.c
+++ b/fs/efs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dir.c
  *
diff --git a/fs/efs/efs.h b/fs/efs/efs.h
index 70f5d4f9a945..13a4d9622633 100644
--- a/fs/efs/efs.h
+++ b/fs/efs/efs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 1999 Al Smith
  *
diff --git a/fs/efs/file.c b/fs/efs/file.c
index a37dcee46866..9e641da6fab2 100644
--- a/fs/efs/file.c
+++ b/fs/efs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * file.c
  *
diff --git a/fs/efs/namei.c b/fs/efs/namei.c
index d34a40edcdb2..38961ee1d1af 100644
--- a/fs/efs/namei.c
+++ b/fs/efs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * namei.c
  *
diff --git a/fs/efs/super.c b/fs/efs/super.c
index 368f7dd21c61..65b59009555b 100644
--- a/fs/efs/super.c
+++ b/fs/efs/super.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * super.c
  *
@@ -306,7 +307,7 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
 	}
 	brelse(bh);
 
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 #ifdef DEBUG
 		pr_info("forcing read-only mode\n");
 #endif
diff --git a/fs/efs/symlink.c b/fs/efs/symlink.c
index 4870cc82deb0..923eb91654d5 100644
--- a/fs/efs/symlink.c
+++ b/fs/efs/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * symlink.c
  *
diff --git a/fs/exec.c b/fs/exec.c
index 01a9fb9d8ac3..1d6243d9f2b6 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -885,23 +885,6 @@ struct file *open_exec(const char *name)
 }
 EXPORT_SYMBOL(open_exec);
 
-int kernel_read(struct file *file, loff_t offset,
-		char *addr, unsigned long count)
-{
-	mm_segment_t old_fs;
-	loff_t pos = offset;
-	int result;
-
-	old_fs = get_fs();
-	set_fs(get_ds());
-	/* The cast to a user pointer is valid due to the set_fs() */
-	result = vfs_read(file, (void __user *)addr, count, &pos);
-	set_fs(old_fs);
-	return result;
-}
-
-EXPORT_SYMBOL(kernel_read);
-
 int kernel_read_file(struct file *file, void **buf, loff_t *size,
 		     loff_t max_size, enum kernel_read_file_id id)
 {
@@ -939,8 +922,7 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size,
 
 	pos = 0;
 	while (pos < i_size) {
-		bytes = kernel_read(file, pos, (char *)(*buf) + pos,
-				    i_size - pos);
+		bytes = kernel_read(file, *buf + pos, i_size - pos, &pos);
 		if (bytes < 0) {
 			ret = bytes;
 			goto out;
@@ -948,7 +930,6 @@ int kernel_read_file(struct file *file, void **buf, loff_t *size,
 
 		if (bytes == 0)
 			break;
-		pos += bytes;
 	}
 
 	if (pos != i_size) {
@@ -974,7 +955,7 @@ out:
 }
 EXPORT_SYMBOL_GPL(kernel_read_file);
 
-int kernel_read_file_from_path(char *path, void **buf, loff_t *size,
+int kernel_read_file_from_path(const char *path, void **buf, loff_t *size,
 			       loff_t max_size, enum kernel_read_file_id id)
 {
 	struct file *file;
@@ -1429,7 +1410,7 @@ static void free_bprm(struct linux_binprm *bprm)
 	kfree(bprm);
 }
 
-int bprm_change_interp(char *interp, struct linux_binprm *bprm)
+int bprm_change_interp(const char *interp, struct linux_binprm *bprm)
 {
 	/* If a binfmt changed the interp, free it first. */
 	if (bprm->interp != bprm->filename)
@@ -1567,6 +1548,7 @@ static void bprm_fill_uid(struct linux_binprm *bprm)
 int prepare_binprm(struct linux_binprm *bprm)
 {
 	int retval;
+	loff_t pos = 0;
 
 	bprm_fill_uid(bprm);
 
@@ -1577,7 +1559,7 @@ int prepare_binprm(struct linux_binprm *bprm)
 	bprm->called_set_creds = 1;
 
 	memset(bprm->buf, 0, BINPRM_BUF_SIZE);
-	return kernel_read(bprm->file, 0, bprm->buf, BINPRM_BUF_SIZE);
+	return kernel_read(bprm->file, bprm->buf, BINPRM_BUF_SIZE, &pos);
 }
 
 EXPORT_SYMBOL(prepare_binprm);
@@ -1763,9 +1745,9 @@ static int do_execveat_common(int fd, struct filename *filename,
 		bprm->filename = filename->name;
 	} else {
 		if (filename->name[0] == '\0')
-			pathbuf = kasprintf(GFP_TEMPORARY, "/dev/fd/%d", fd);
+			pathbuf = kasprintf(GFP_KERNEL, "/dev/fd/%d", fd);
 		else
-			pathbuf = kasprintf(GFP_TEMPORARY, "/dev/fd/%d/%s",
+			pathbuf = kasprintf(GFP_KERNEL, "/dev/fd/%d/%s",
 					    fd, filename->name);
 		if (!pathbuf) {
 			retval = -ENOMEM;
@@ -1820,6 +1802,7 @@ static int do_execveat_common(int fd, struct filename *filename,
 	/* execve succeeded */
 	current->fs->in_exec = 0;
 	current->in_execve = 0;
+	membarrier_execve(current);
 	acct_update_integrals(current);
 	task_numa_free(current);
 	free_bprm(bprm);
@@ -1928,7 +1911,7 @@ void set_dumpable(struct mm_struct *mm, int value)
 		return;
 
 	do {
-		old = ACCESS_ONCE(mm->flags);
+		old = READ_ONCE(mm->flags);
 		new = (old & ~MMF_DUMPABLE_MASK) | value;
 	} while (cmpxchg(&mm->flags, old, new) != old);
 }
diff --git a/fs/ext2/Makefile b/fs/ext2/Makefile
index 445b0e996a12..311479d864a7 100644
--- a/fs/ext2/Makefile
+++ b/fs/ext2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux ext2-filesystem routines.
 #
diff --git a/fs/ext2/acl.c b/fs/ext2/acl.c
index 51f0aea70cb4..224c04abb2e5 100644
--- a/fs/ext2/acl.c
+++ b/fs/ext2/acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/acl.c
  *
diff --git a/fs/ext2/acl.h b/fs/ext2/acl.h
index 44937f9fcf32..0f01c759daac 100644
--- a/fs/ext2/acl.h
+++ b/fs/ext2/acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: fs/ext2/acl.h
 
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index d0bdb74f0e15..e1b3724bebf2 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext2/balloc.c
  *
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c
index e2709695b177..987647986f47 100644
--- a/fs/ext2/dir.c
+++ b/fs/ext2/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext2/dir.c
  *
diff --git a/fs/ext2/ext2.h b/fs/ext2/ext2.h
index 28de3edd4f4d..032295e1d386 100644
--- a/fs/ext2/ext2.h
+++ b/fs/ext2/ext2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1992, 1993, 1994, 1995
  * Remy Card (card@masi.ibp.fr)
diff --git a/fs/ext2/file.c b/fs/ext2/file.c
index ff3a3636a5ca..c67b486488fd 100644
--- a/fs/ext2/file.c
+++ b/fs/ext2/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext2/file.c
  *
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index 395fc074c0db..a1fc3dabca41 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext2/ialloc.c
  *
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 4dca6f348714..9b2ac55ac34f 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext2/inode.c
  *
@@ -820,11 +821,11 @@ static int ext2_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 
 	if (ret == 0) {
 		iomap->type = IOMAP_HOLE;
-		iomap->blkno = IOMAP_NULL_BLOCK;
+		iomap->addr = IOMAP_NULL_ADDR;
 		iomap->length = 1 << blkbits;
 	} else {
 		iomap->type = IOMAP_MAPPED;
-		iomap->blkno = (sector_t)bno << (blkbits - 9);
+		iomap->addr = (u64)bno << blkbits;
 		iomap->length = (u64)ret << blkbits;
 		iomap->flags |= IOMAP_F_MERGED;
 	}
diff --git a/fs/ext2/ioctl.c b/fs/ext2/ioctl.c
index 087f122cca42..0367c0039e68 100644
--- a/fs/ext2/ioctl.c
+++ b/fs/ext2/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/ioctl.c
  *
diff --git a/fs/ext2/namei.c b/fs/ext2/namei.c
index 814e405a2da6..e078075dc66f 100644
--- a/fs/ext2/namei.c
+++ b/fs/ext2/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/namei.c
  *
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index fc18edd81815..e2b6be03e69b 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -52,7 +52,7 @@ void ext2_error(struct super_block *sb, const char *function,
 	struct ext2_sb_info *sbi = EXT2_SB(sb);
 	struct ext2_super_block *es = sbi->s_es;
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		spin_lock(&sbi->s_lock);
 		sbi->s_mount_state |= EXT2_ERROR_FS;
 		es->s_state |= cpu_to_le16(EXT2_ERROR_FS);
@@ -151,7 +151,7 @@ static void ext2_put_super (struct super_block * sb)
 		ext2_xattr_destroy_cache(sbi->s_ea_block_cache);
 		sbi->s_ea_block_cache = NULL;
 	}
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		struct ext2_super_block *es = sbi->s_es;
 
 		spin_lock(&sbi->s_lock);
@@ -479,10 +479,10 @@ static const match_table_t tokens = {
 	{Opt_err, NULL}
 };
 
-static int parse_options(char *options, struct super_block *sb)
+static int parse_options(char *options, struct super_block *sb,
+			 struct ext2_mount_options *opts)
 {
 	char *p;
-	struct ext2_sb_info *sbi = EXT2_SB(sb);
 	substring_t args[MAX_OPT_ARGS];
 	int option;
 	kuid_t uid;
@@ -499,16 +499,16 @@ static int parse_options(char *options, struct super_block *sb)
 		token = match_token(p, tokens, args);
 		switch (token) {
 		case Opt_bsd_df:
-			clear_opt (sbi->s_mount_opt, MINIX_DF);
+			clear_opt (opts->s_mount_opt, MINIX_DF);
 			break;
 		case Opt_minix_df:
-			set_opt (sbi->s_mount_opt, MINIX_DF);
+			set_opt (opts->s_mount_opt, MINIX_DF);
 			break;
 		case Opt_grpid:
-			set_opt (sbi->s_mount_opt, GRPID);
+			set_opt (opts->s_mount_opt, GRPID);
 			break;
 		case Opt_nogrpid:
-			clear_opt (sbi->s_mount_opt, GRPID);
+			clear_opt (opts->s_mount_opt, GRPID);
 			break;
 		case Opt_resuid:
 			if (match_int(&args[0], &option))
@@ -519,7 +519,7 @@ static int parse_options(char *options, struct super_block *sb)
 				return 0;
 
 			}
-			sbi->s_resuid = uid;
+			opts->s_resuid = uid;
 			break;
 		case Opt_resgid:
 			if (match_int(&args[0], &option))
@@ -529,51 +529,51 @@ static int parse_options(char *options, struct super_block *sb)
 				ext2_msg(sb, KERN_ERR, "Invalid gid value %d", option);
 				return 0;
 			}
-			sbi->s_resgid = gid;
+			opts->s_resgid = gid;
 			break;
 		case Opt_sb:
 			/* handled by get_sb_block() instead of here */
 			/* *sb_block = match_int(&args[0]); */
 			break;
 		case Opt_err_panic:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			set_opt (sbi->s_mount_opt, ERRORS_PANIC);
+			clear_opt (opts->s_mount_opt, ERRORS_CONT);
+			clear_opt (opts->s_mount_opt, ERRORS_RO);
+			set_opt (opts->s_mount_opt, ERRORS_PANIC);
 			break;
 		case Opt_err_ro:
-			clear_opt (sbi->s_mount_opt, ERRORS_CONT);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_RO);
+			clear_opt (opts->s_mount_opt, ERRORS_CONT);
+			clear_opt (opts->s_mount_opt, ERRORS_PANIC);
+			set_opt (opts->s_mount_opt, ERRORS_RO);
 			break;
 		case Opt_err_cont:
-			clear_opt (sbi->s_mount_opt, ERRORS_RO);
-			clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
-			set_opt (sbi->s_mount_opt, ERRORS_CONT);
+			clear_opt (opts->s_mount_opt, ERRORS_RO);
+			clear_opt (opts->s_mount_opt, ERRORS_PANIC);
+			set_opt (opts->s_mount_opt, ERRORS_CONT);
 			break;
 		case Opt_nouid32:
-			set_opt (sbi->s_mount_opt, NO_UID32);
+			set_opt (opts->s_mount_opt, NO_UID32);
 			break;
 		case Opt_nocheck:
-			clear_opt (sbi->s_mount_opt, CHECK);
+			clear_opt (opts->s_mount_opt, CHECK);
 			break;
 		case Opt_debug:
-			set_opt (sbi->s_mount_opt, DEBUG);
+			set_opt (opts->s_mount_opt, DEBUG);
 			break;
 		case Opt_oldalloc:
-			set_opt (sbi->s_mount_opt, OLDALLOC);
+			set_opt (opts->s_mount_opt, OLDALLOC);
 			break;
 		case Opt_orlov:
-			clear_opt (sbi->s_mount_opt, OLDALLOC);
+			clear_opt (opts->s_mount_opt, OLDALLOC);
 			break;
 		case Opt_nobh:
-			set_opt (sbi->s_mount_opt, NOBH);
+			set_opt (opts->s_mount_opt, NOBH);
 			break;
 #ifdef CONFIG_EXT2_FS_XATTR
 		case Opt_user_xattr:
-			set_opt (sbi->s_mount_opt, XATTR_USER);
+			set_opt (opts->s_mount_opt, XATTR_USER);
 			break;
 		case Opt_nouser_xattr:
-			clear_opt (sbi->s_mount_opt, XATTR_USER);
+			clear_opt (opts->s_mount_opt, XATTR_USER);
 			break;
 #else
 		case Opt_user_xattr:
@@ -584,10 +584,10 @@ static int parse_options(char *options, struct super_block *sb)
 #endif
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
 		case Opt_acl:
-			set_opt(sbi->s_mount_opt, POSIX_ACL);
+			set_opt(opts->s_mount_opt, POSIX_ACL);
 			break;
 		case Opt_noacl:
-			clear_opt(sbi->s_mount_opt, POSIX_ACL);
+			clear_opt(opts->s_mount_opt, POSIX_ACL);
 			break;
 #else
 		case Opt_acl:
@@ -598,13 +598,13 @@ static int parse_options(char *options, struct super_block *sb)
 #endif
 		case Opt_xip:
 			ext2_msg(sb, KERN_INFO, "use dax instead of xip");
-			set_opt(sbi->s_mount_opt, XIP);
+			set_opt(opts->s_mount_opt, XIP);
 			/* Fall through */
 		case Opt_dax:
 #ifdef CONFIG_FS_DAX
 			ext2_msg(sb, KERN_WARNING,
 		"DAX enabled. Warning: EXPERIMENTAL, use at your own risk");
-			set_opt(sbi->s_mount_opt, DAX);
+			set_opt(opts->s_mount_opt, DAX);
 #else
 			ext2_msg(sb, KERN_INFO, "dax option not supported");
 #endif
@@ -613,11 +613,11 @@ static int parse_options(char *options, struct super_block *sb)
 #if defined(CONFIG_QUOTA)
 		case Opt_quota:
 		case Opt_usrquota:
-			set_opt(sbi->s_mount_opt, USRQUOTA);
+			set_opt(opts->s_mount_opt, USRQUOTA);
 			break;
 
 		case Opt_grpquota:
-			set_opt(sbi->s_mount_opt, GRPQUOTA);
+			set_opt(opts->s_mount_opt, GRPQUOTA);
 			break;
 #else
 		case Opt_quota:
@@ -629,11 +629,11 @@ static int parse_options(char *options, struct super_block *sb)
 #endif
 
 		case Opt_reservation:
-			set_opt(sbi->s_mount_opt, RESERVATION);
+			set_opt(opts->s_mount_opt, RESERVATION);
 			ext2_msg(sb, KERN_INFO, "reservations ON");
 			break;
 		case Opt_noreservation:
-			clear_opt(sbi->s_mount_opt, RESERVATION);
+			clear_opt(opts->s_mount_opt, RESERVATION);
 			ext2_msg(sb, KERN_INFO, "reservations OFF");
 			break;
 		case Opt_ignore:
@@ -830,6 +830,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	int i, j;
 	__le32 features;
 	int err;
+	struct ext2_mount_options opts;
 
 	err = -ENOMEM;
 	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
@@ -890,35 +891,39 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	/* Set defaults before we parse the mount options */
 	def_mount_opts = le32_to_cpu(es->s_default_mount_opts);
 	if (def_mount_opts & EXT2_DEFM_DEBUG)
-		set_opt(sbi->s_mount_opt, DEBUG);
+		set_opt(opts.s_mount_opt, DEBUG);
 	if (def_mount_opts & EXT2_DEFM_BSDGROUPS)
-		set_opt(sbi->s_mount_opt, GRPID);
+		set_opt(opts.s_mount_opt, GRPID);
 	if (def_mount_opts & EXT2_DEFM_UID16)
-		set_opt(sbi->s_mount_opt, NO_UID32);
+		set_opt(opts.s_mount_opt, NO_UID32);
 #ifdef CONFIG_EXT2_FS_XATTR
 	if (def_mount_opts & EXT2_DEFM_XATTR_USER)
-		set_opt(sbi->s_mount_opt, XATTR_USER);
+		set_opt(opts.s_mount_opt, XATTR_USER);
 #endif
 #ifdef CONFIG_EXT2_FS_POSIX_ACL
 	if (def_mount_opts & EXT2_DEFM_ACL)
-		set_opt(sbi->s_mount_opt, POSIX_ACL);
+		set_opt(opts.s_mount_opt, POSIX_ACL);
 #endif
 	
 	if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_PANIC)
-		set_opt(sbi->s_mount_opt, ERRORS_PANIC);
+		set_opt(opts.s_mount_opt, ERRORS_PANIC);
 	else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_CONTINUE)
-		set_opt(sbi->s_mount_opt, ERRORS_CONT);
+		set_opt(opts.s_mount_opt, ERRORS_CONT);
 	else
-		set_opt(sbi->s_mount_opt, ERRORS_RO);
+		set_opt(opts.s_mount_opt, ERRORS_RO);
 
-	sbi->s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));
-	sbi->s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));
+	opts.s_resuid = make_kuid(&init_user_ns, le16_to_cpu(es->s_def_resuid));
+	opts.s_resgid = make_kgid(&init_user_ns, le16_to_cpu(es->s_def_resgid));
 	
-	set_opt(sbi->s_mount_opt, RESERVATION);
+	set_opt(opts.s_mount_opt, RESERVATION);
 
-	if (!parse_options((char *) data, sb))
+	if (!parse_options((char *) data, sb, &opts))
 		goto failed_mount;
 
+	sbi->s_mount_opt = opts.s_mount_opt;
+	sbi->s_resuid = opts.s_resuid;
+	sbi->s_resgid = opts.s_resgid;
+
 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
 		((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
 		 MS_POSIXACL : 0);
@@ -943,8 +948,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 			le32_to_cpu(features));
 		goto failed_mount;
 	}
-	if (!(sb->s_flags & MS_RDONLY) &&
-	    (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
+	if (!sb_rdonly(sb) && (features = EXT2_HAS_RO_COMPAT_FEATURE(sb, ~EXT2_FEATURE_RO_COMPAT_SUPP))){
 		ext2_msg(sb, KERN_ERR, "error: couldn't mount RDWR because of "
 		       "unsupported optional features (%x)",
 		       le32_to_cpu(features));
@@ -1173,7 +1177,7 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	if (EXT2_HAS_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL))
 		ext2_msg(sb, KERN_WARNING,
 			"warning: mounting ext3 filesystem as ext2");
-	if (ext2_setup_super (sb, es, sb->s_flags & MS_RDONLY))
+	if (ext2_setup_super (sb, es, sb_rdonly(sb)))
 		sb->s_flags |= MS_RDONLY;
 	ext2_write_super(sb);
 	return 0;
@@ -1305,7 +1309,7 @@ static int ext2_unfreeze(struct super_block *sb)
 
 static void ext2_write_super(struct super_block *sb)
 {
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		ext2_sync_fs(sb, 1);
 }
 
@@ -1313,46 +1317,36 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 {
 	struct ext2_sb_info * sbi = EXT2_SB(sb);
 	struct ext2_super_block * es;
-	struct ext2_mount_options old_opts;
-	unsigned long old_sb_flags;
+	struct ext2_mount_options new_opts;
 	int err;
 
 	sync_filesystem(sb);
-	spin_lock(&sbi->s_lock);
 
-	/* Store the old options */
-	old_sb_flags = sb->s_flags;
-	old_opts.s_mount_opt = sbi->s_mount_opt;
-	old_opts.s_resuid = sbi->s_resuid;
-	old_opts.s_resgid = sbi->s_resgid;
+	spin_lock(&sbi->s_lock);
+	new_opts.s_mount_opt = sbi->s_mount_opt;
+	new_opts.s_resuid = sbi->s_resuid;
+	new_opts.s_resgid = sbi->s_resgid;
+	spin_unlock(&sbi->s_lock);
 
 	/*
 	 * Allow the "check" option to be passed as a remount option.
 	 */
-	if (!parse_options(data, sb)) {
-		err = -EINVAL;
-		goto restore_opts;
-	}
-
-	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
-		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+	if (!parse_options(data, sb, &new_opts))
+		return -EINVAL;
 
+	spin_lock(&sbi->s_lock);
 	es = sbi->s_es;
-	if ((sbi->s_mount_opt ^ old_opts.s_mount_opt) & EXT2_MOUNT_DAX) {
+	if ((sbi->s_mount_opt ^ new_opts.s_mount_opt) & EXT2_MOUNT_DAX) {
 		ext2_msg(sb, KERN_WARNING, "warning: refusing change of "
 			 "dax flag with busy inodes while remounting");
-		sbi->s_mount_opt ^= EXT2_MOUNT_DAX;
-	}
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
-		spin_unlock(&sbi->s_lock);
-		return 0;
+		new_opts.s_mount_opt ^= EXT2_MOUNT_DAX;
 	}
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
+		goto out_set;
 	if (*flags & MS_RDONLY) {
 		if (le16_to_cpu(es->s_state) & EXT2_VALID_FS ||
-		    !(sbi->s_mount_state & EXT2_VALID_FS)) {
-			spin_unlock(&sbi->s_lock);
-			return 0;
-		}
+		    !(sbi->s_mount_state & EXT2_VALID_FS))
+			goto out_set;
 
 		/*
 		 * OK, we are remounting a valid rw partition rdonly, so set
@@ -1363,22 +1357,20 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 		spin_unlock(&sbi->s_lock);
 
 		err = dquot_suspend(sb, -1);
-		if (err < 0) {
-			spin_lock(&sbi->s_lock);
-			goto restore_opts;
-		}
+		if (err < 0)
+			return err;
 
 		ext2_sync_super(sb, es, 1);
 	} else {
 		__le32 ret = EXT2_HAS_RO_COMPAT_FEATURE(sb,
 					       ~EXT2_FEATURE_RO_COMPAT_SUPP);
 		if (ret) {
+			spin_unlock(&sbi->s_lock);
 			ext2_msg(sb, KERN_WARNING,
 				"warning: couldn't remount RDWR because of "
 				"unsupported optional features (%x).",
 				le32_to_cpu(ret));
-			err = -EROFS;
-			goto restore_opts;
+			return -EROFS;
 		}
 		/*
 		 * Mounting a RDONLY partition read-write, so reread and
@@ -1395,14 +1387,16 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
 		dquot_resume(sb, -1);
 	}
 
-	return 0;
-restore_opts:
-	sbi->s_mount_opt = old_opts.s_mount_opt;
-	sbi->s_resuid = old_opts.s_resuid;
-	sbi->s_resgid = old_opts.s_resgid;
-	sb->s_flags = old_sb_flags;
+	spin_lock(&sbi->s_lock);
+out_set:
+	sbi->s_mount_opt = new_opts.s_mount_opt;
+	sbi->s_resuid = new_opts.s_resuid;
+	sbi->s_resgid = new_opts.s_resgid;
+	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
 	spin_unlock(&sbi->s_lock);
-	return err;
+
+	return 0;
 }
 
 static int ext2_statfs (struct dentry * dentry, struct kstatfs * buf)
diff --git a/fs/ext2/symlink.c b/fs/ext2/symlink.c
index eeffb0138a17..d5589ddcc281 100644
--- a/fs/ext2/symlink.c
+++ b/fs/ext2/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext2/symlink.c
  *
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index 1b9b1268d418..62d9a659a8ff 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/xattr.c
  *
diff --git a/fs/ext2/xattr.h b/fs/ext2/xattr.h
index 6f82ab1b00ca..cee888cdc235 100644
--- a/fs/ext2/xattr.h
+++ b/fs/ext2/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/ext2_xattr.h
 
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index 7b9e9c1842d5..9a682e440acb 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/xattr_security.c
  * Handler for storing security labels as extended attributes.
diff --git a/fs/ext2/xattr_trusted.c b/fs/ext2/xattr_trusted.c
index 65049b71af13..49add1107850 100644
--- a/fs/ext2/xattr_trusted.c
+++ b/fs/ext2/xattr_trusted.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/xattr_trusted.c
  * Handler for trusted extended attributes.
diff --git a/fs/ext2/xattr_user.c b/fs/ext2/xattr_user.c
index fb2f992ae763..c243a3b4d69d 100644
--- a/fs/ext2/xattr_user.c
+++ b/fs/ext2/xattr_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext2/xattr_user.c
  * Handler for extended user attributes.
diff --git a/fs/ext4/Kconfig b/fs/ext4/Kconfig
index e38039fd96ff..73b850f5659c 100644
--- a/fs/ext4/Kconfig
+++ b/fs/ext4/Kconfig
@@ -37,6 +37,7 @@ config EXT4_FS
 	select CRC16
 	select CRYPTO
 	select CRYPTO_CRC32C
+	select FS_IOMAP
 	help
 	  This is the next generation of the ext3 filesystem.
 
diff --git a/fs/ext4/Makefile b/fs/ext4/Makefile
index d9beca1653c5..8fdfcd3c3e04 100644
--- a/fs/ext4/Makefile
+++ b/fs/ext4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux ext4-filesystem routines.
 #
diff --git a/fs/ext4/acl.c b/fs/ext4/acl.c
index 46ff2229ff5e..fb50f9aa6ead 100644
--- a/fs/ext4/acl.c
+++ b/fs/ext4/acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/acl.c
  *
diff --git a/fs/ext4/acl.h b/fs/ext4/acl.h
index da2c79577d72..a48fc5ae2701 100644
--- a/fs/ext4/acl.h
+++ b/fs/ext4/acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: fs/ext4/acl.h
 
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index e04ec868e37e..a943e568292e 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/balloc.c
  *
@@ -600,22 +601,21 @@ int ext4_claim_free_clusters(struct ext4_sb_info *sbi,
  * ext4_should_retry_alloc() is called when ENOSPC is returned, and if
  * it is profitable to retry the operation, this function will wait
  * for the current or committing transaction to complete, and then
- * return TRUE.
- *
- * if the total number of retries exceed three times, return FALSE.
+ * return TRUE.  We will only retry once.
  */
 int ext4_should_retry_alloc(struct super_block *sb, int *retries)
 {
 	if (!ext4_has_free_clusters(EXT4_SB(sb), 1, 0) ||
-	    (*retries)++ > 3 ||
+	    (*retries)++ > 1 ||
 	    !EXT4_SB(sb)->s_journal)
 		return 0;
 
-	jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
-
 	smp_mb();
-	if (EXT4_SB(sb)->s_mb_free_pending)
-		jbd2_journal_force_commit_nested(EXT4_SB(sb)->s_journal);
+	if (EXT4_SB(sb)->s_mb_free_pending == 0)
+		return 0;
+
+	jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
+	jbd2_journal_force_commit_nested(EXT4_SB(sb)->s_journal);
 	return 1;
 }
 
diff --git a/fs/ext4/bitmap.c b/fs/ext4/bitmap.c
index 4a606afb171f..f63e028c638c 100644
--- a/fs/ext4/bitmap.c
+++ b/fs/ext4/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/bitmap.c
  *
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index fdb19543af1e..bee888e0e2db 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/block_validity.c
  *
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c
index b04e882179c6..d5babc9f222b 100644
--- a/fs/ext4/dir.c
+++ b/fs/ext4/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/dir.c
  *
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index e2abe01c8c6b..4e091eae38b1 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ext4.h
  *
@@ -33,17 +34,15 @@
 #include <linux/percpu_counter.h>
 #include <linux/ratelimit.h>
 #include <crypto/hash.h>
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-#include <linux/fscrypt_supp.h>
-#else
-#include <linux/fscrypt_notsupp.h>
-#endif
 #include <linux/falloc.h>
 #include <linux/percpu-rwsem.h>
 #ifdef __KERNEL__
 #include <linux/compat.h>
 #endif
 
+#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_EXT4_FS_ENCRYPTION)
+#include <linux/fscrypt.h>
+
 /*
  * The fourth extended filesystem constants/structures
  */
@@ -545,8 +544,8 @@ struct ext4_new_group_data {
 	__u64 inode_table;
 	__u32 blocks_count;
 	__u16 reserved_blocks;
-	__u16 unused;
-	__u32 free_blocks_count;
+	__u16 mdata_blocks;
+	__u32 free_clusters_count;
 };
 
 /* Indexes used to index group tables in ext4_new_group_data */
@@ -644,43 +643,6 @@ enum {
 #define EXT4_IOC_GET_ENCRYPTION_PWSALT	FS_IOC_GET_ENCRYPTION_PWSALT
 #define EXT4_IOC_GET_ENCRYPTION_POLICY	FS_IOC_GET_ENCRYPTION_POLICY
 
-#ifndef FS_IOC_FSGETXATTR
-/* Until the uapi changes get merged for project quota... */
-
-#define FS_IOC_FSGETXATTR		_IOR('X', 31, struct fsxattr)
-#define FS_IOC_FSSETXATTR		_IOW('X', 32, struct fsxattr)
-
-/*
- * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.
- */
-struct fsxattr {
-	__u32		fsx_xflags;	/* xflags field value (get/set) */
-	__u32		fsx_extsize;	/* extsize field value (get/set)*/
-	__u32		fsx_nextents;	/* nextents field value (get)	*/
-	__u32		fsx_projid;	/* project identifier (get/set) */
-	unsigned char	fsx_pad[12];
-};
-
-/*
- * Flags for the fsx_xflags field
- */
-#define FS_XFLAG_REALTIME	0x00000001	/* data in realtime volume */
-#define FS_XFLAG_PREALLOC	0x00000002	/* preallocated file extents */
-#define FS_XFLAG_IMMUTABLE	0x00000008	/* file cannot be modified */
-#define FS_XFLAG_APPEND		0x00000010	/* all writes append */
-#define FS_XFLAG_SYNC		0x00000020	/* all writes synchronous */
-#define FS_XFLAG_NOATIME	0x00000040	/* do not update access time */
-#define FS_XFLAG_NODUMP		0x00000080	/* do not include in backups */
-#define FS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */
-#define FS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */
-#define FS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */
-#define FS_XFLAG_EXTSIZE	0x00000800	/* extent size allocator hint */
-#define FS_XFLAG_EXTSZINHERIT	0x00001000	/* inherit inode extent size */
-#define FS_XFLAG_NODEFRAG	0x00002000  	/* do not defragment */
-#define FS_XFLAG_FILESTREAM	0x00004000	/* use filestream allocator */
-#define FS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this */
-#endif /* !defined(FS_IOC_FSGETXATTR) */
-
 #define EXT4_IOC_FSGETXATTR		FS_IOC_FSGETXATTR
 #define EXT4_IOC_FSSETXATTR		FS_IOC_FSSETXATTR
 
@@ -1392,8 +1354,6 @@ struct ext4_sb_info {
 	int s_first_ino;
 	unsigned int s_inode_readahead_blks;
 	unsigned int s_inode_goal;
-	spinlock_t s_next_gen_lock;
-	u32 s_next_generation;
 	u32 s_hash_seed[4];
 	int s_def_hash_version;
 	int s_hash_unsigned;	/* 3 if hash should be signed, 0 if not */
@@ -2515,9 +2475,6 @@ extern void ext4_da_update_reserve_space(struct inode *inode,
 					int used, int quota_claim);
 extern int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk,
 			      ext4_fsblk_t pblk, ext4_lblk_t len);
-extern int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk,
-				unsigned int map_len,
-				struct extent_status *result);
 
 /* indirect.c */
 extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
@@ -3048,6 +3005,10 @@ extern struct buffer_head *ext4_get_first_inline_block(struct inode *inode,
 extern int ext4_inline_data_fiemap(struct inode *inode,
 				   struct fiemap_extent_info *fieinfo,
 				   int *has_inline, __u64 start, __u64 len);
+
+struct iomap;
+extern int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap);
+
 extern int ext4_try_to_evict_inline_data(handle_t *handle,
 					 struct inode *inode,
 					 int needed);
diff --git a/fs/ext4/ext4_jbd2.c b/fs/ext4/ext4_jbd2.c
index dd106b1d5d89..2d593201cf7a 100644
--- a/fs/ext4/ext4_jbd2.c
+++ b/fs/ext4/ext4_jbd2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Interface between ext4 and JBD
  */
@@ -47,7 +48,7 @@ static int ext4_journal_check_start(struct super_block *sb)
 	if (unlikely(ext4_forced_shutdown(EXT4_SB(sb))))
 		return -EIO;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return -EROFS;
 	WARN_ON(sb->s_writers.frozen == SB_FREEZE_COMPLETE);
 	journal = EXT4_SB(sb)->s_journal;
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 97f0fd06728d..07bca11749d4 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4794,7 +4794,8 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 	}
 
 	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
-	     offset + len > i_size_read(inode)) {
+	    (offset + len > i_size_read(inode) ||
+	     offset + len > EXT4_I(inode)->i_disksize)) {
 		new_size = offset + len;
 		ret = inode_newsize_ok(inode, new_size);
 		if (ret)
@@ -4965,7 +4966,8 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 	}
 
 	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
-	     offset + len > i_size_read(inode)) {
+	    (offset + len > i_size_read(inode) ||
+	     offset + len > EXT4_I(inode)->i_disksize)) {
 		new_size = offset + len;
 		ret = inode_newsize_ok(inode, new_size);
 		if (ret)
diff --git a/fs/ext4/extents_status.c b/fs/ext4/extents_status.c
index e7f12a204cbc..763ef185dd17 100644
--- a/fs/ext4/extents_status.c
+++ b/fs/ext4/extents_status.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/ext4/extents_status.c
  *
diff --git a/fs/ext4/extents_status.h b/fs/ext4/extents_status.h
index f7aa24f4642d..ca90fc96f47e 100644
--- a/fs/ext4/extents_status.h
+++ b/fs/ext4/extents_status.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  fs/ext4/extents_status.h
  *
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 57dcaea762c3..ad204d2724ac 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/file.c
  *
@@ -20,6 +21,7 @@
 
 #include <linux/time.h>
 #include <linux/fs.h>
+#include <linux/iomap.h>
 #include <linux/mount.h>
 #include <linux/path.h>
 #include <linux/dax.h>
@@ -223,6 +225,8 @@ ext4_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
 	if (IS_DAX(inode))
 		return ext4_dax_write_iter(iocb, from);
 #endif
+	if (!o_direct && (iocb->ki_flags & IOCB_NOWAIT))
+		return -EOPNOTSUPP;
 
 	if (!inode_trylock(inode)) {
 		if (iocb->ki_flags & IOCB_NOWAIT)
@@ -362,7 +366,6 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 	struct super_block *sb = inode->i_sb;
 	struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 	struct vfsmount *mnt = filp->f_path.mnt;
-	struct dentry *dir;
 	struct path path;
 	char buf[64], *cp;
 	int ret;
@@ -371,7 +374,7 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 		return -EIO;
 
 	if (unlikely(!(sbi->s_mount_flags & EXT4_MF_MNTDIR_SAMPLED) &&
-		     !(sb->s_flags & MS_RDONLY))) {
+		     !sb_rdonly(sb))) {
 		sbi->s_mount_flags |= EXT4_MF_MNTDIR_SAMPLED;
 		/*
 		 * Sample where the filesystem has been mounted and
@@ -402,25 +405,11 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 			ext4_journal_stop(handle);
 		}
 	}
-	if (ext4_encrypted_inode(inode)) {
-		ret = fscrypt_get_encryption_info(inode);
-		if (ret)
-			return -EACCES;
-		if (!fscrypt_has_encryption_key(inode))
-			return -ENOKEY;
-	}
 
-	dir = dget_parent(file_dentry(filp));
-	if (ext4_encrypted_inode(d_inode(dir)) &&
-			!fscrypt_has_permitted_context(d_inode(dir), inode)) {
-		ext4_warning(inode->i_sb,
-			     "Inconsistent encryption contexts: %lu/%lu",
-			     (unsigned long) d_inode(dir)->i_ino,
-			     (unsigned long) inode->i_ino);
-		dput(dir);
-		return -EPERM;
-	}
-	dput(dir);
+	ret = fscrypt_file_open(inode, filp);
+	if (ret)
+		return ret;
+
 	/*
 	 * Set up the jbd2_inode if we are opening the inode for
 	 * writing and the journal is present
@@ -431,255 +420,11 @@ static int ext4_file_open(struct inode * inode, struct file * filp)
 			return ret;
 	}
 
-	/* Set the flags to support nowait AIO */
-	filp->f_mode |= FMODE_AIO_NOWAIT;
-
+	filp->f_mode |= FMODE_NOWAIT;
 	return dquot_file_open(inode, filp);
 }
 
 /*
- * Here we use ext4_map_blocks() to get a block mapping for a extent-based
- * file rather than ext4_ext_walk_space() because we can introduce
- * SEEK_DATA/SEEK_HOLE for block-mapped and extent-mapped file at the same
- * function.  When extent status tree has been fully implemented, it will
- * track all extent status for a file and we can directly use it to
- * retrieve the offset for SEEK_DATA/SEEK_HOLE.
- */
-
-/*
- * When we retrieve the offset for SEEK_DATA/SEEK_HOLE, we would need to
- * lookup page cache to check whether or not there has some data between
- * [startoff, endoff] because, if this range contains an unwritten extent,
- * we determine this extent as a data or a hole according to whether the
- * page cache has data or not.
- */
-static int ext4_find_unwritten_pgoff(struct inode *inode,
-				     int whence,
-				     ext4_lblk_t end_blk,
-				     loff_t *offset)
-{
-	struct pagevec pvec;
-	unsigned int blkbits;
-	pgoff_t index;
-	pgoff_t end;
-	loff_t endoff;
-	loff_t startoff;
-	loff_t lastoff;
-	int found = 0;
-
-	blkbits = inode->i_sb->s_blocksize_bits;
-	startoff = *offset;
-	lastoff = startoff;
-	endoff = (loff_t)end_blk << blkbits;
-
-	index = startoff >> PAGE_SHIFT;
-	end = (endoff - 1) >> PAGE_SHIFT;
-
-	pagevec_init(&pvec, 0);
-	do {
-		int i;
-		unsigned long nr_pages;
-
-		nr_pages = pagevec_lookup_range(&pvec, inode->i_mapping,
-					&index, end);
-		if (nr_pages == 0)
-			break;
-
-		for (i = 0; i < nr_pages; i++) {
-			struct page *page = pvec.pages[i];
-			struct buffer_head *bh, *head;
-
-			/*
-			 * If current offset is smaller than the page offset,
-			 * there is a hole at this offset.
-			 */
-			if (whence == SEEK_HOLE && lastoff < endoff &&
-			    lastoff < page_offset(pvec.pages[i])) {
-				found = 1;
-				*offset = lastoff;
-				goto out;
-			}
-
-			lock_page(page);
-
-			if (unlikely(page->mapping != inode->i_mapping)) {
-				unlock_page(page);
-				continue;
-			}
-
-			if (!page_has_buffers(page)) {
-				unlock_page(page);
-				continue;
-			}
-
-			if (page_has_buffers(page)) {
-				lastoff = page_offset(page);
-				bh = head = page_buffers(page);
-				do {
-					if (lastoff + bh->b_size <= startoff)
-						goto next;
-					if (buffer_uptodate(bh) ||
-					    buffer_unwritten(bh)) {
-						if (whence == SEEK_DATA)
-							found = 1;
-					} else {
-						if (whence == SEEK_HOLE)
-							found = 1;
-					}
-					if (found) {
-						*offset = max_t(loff_t,
-							startoff, lastoff);
-						unlock_page(page);
-						goto out;
-					}
-next:
-					lastoff += bh->b_size;
-					bh = bh->b_this_page;
-				} while (bh != head);
-			}
-
-			lastoff = page_offset(page) + PAGE_SIZE;
-			unlock_page(page);
-		}
-
-		pagevec_release(&pvec);
-	} while (index <= end);
-
-	/* There are no pages upto endoff - that would be a hole in there. */
-	if (whence == SEEK_HOLE && lastoff < endoff) {
-		found = 1;
-		*offset = lastoff;
-	}
-out:
-	pagevec_release(&pvec);
-	return found;
-}
-
-/*
- * ext4_seek_data() retrieves the offset for SEEK_DATA.
- */
-static loff_t ext4_seek_data(struct file *file, loff_t offset, loff_t maxsize)
-{
-	struct inode *inode = file->f_mapping->host;
-	struct extent_status es;
-	ext4_lblk_t start, last, end;
-	loff_t dataoff, isize;
-	int blkbits;
-	int ret;
-
-	inode_lock(inode);
-
-	isize = i_size_read(inode);
-	if (offset < 0 || offset >= isize) {
-		inode_unlock(inode);
-		return -ENXIO;
-	}
-
-	blkbits = inode->i_sb->s_blocksize_bits;
-	start = offset >> blkbits;
-	last = start;
-	end = isize >> blkbits;
-	dataoff = offset;
-
-	do {
-		ret = ext4_get_next_extent(inode, last, end - last + 1, &es);
-		if (ret <= 0) {
-			/* No extent found -> no data */
-			if (ret == 0)
-				ret = -ENXIO;
-			inode_unlock(inode);
-			return ret;
-		}
-
-		last = es.es_lblk;
-		if (last != start)
-			dataoff = (loff_t)last << blkbits;
-		if (!ext4_es_is_unwritten(&es))
-			break;
-
-		/*
-		 * If there is a unwritten extent at this offset,
-		 * it will be as a data or a hole according to page
-		 * cache that has data or not.
-		 */
-		if (ext4_find_unwritten_pgoff(inode, SEEK_DATA,
-					      es.es_lblk + es.es_len, &dataoff))
-			break;
-		last += es.es_len;
-		dataoff = (loff_t)last << blkbits;
-		cond_resched();
-	} while (last <= end);
-
-	inode_unlock(inode);
-
-	if (dataoff > isize)
-		return -ENXIO;
-
-	return vfs_setpos(file, dataoff, maxsize);
-}
-
-/*
- * ext4_seek_hole() retrieves the offset for SEEK_HOLE.
- */
-static loff_t ext4_seek_hole(struct file *file, loff_t offset, loff_t maxsize)
-{
-	struct inode *inode = file->f_mapping->host;
-	struct extent_status es;
-	ext4_lblk_t start, last, end;
-	loff_t holeoff, isize;
-	int blkbits;
-	int ret;
-
-	inode_lock(inode);
-
-	isize = i_size_read(inode);
-	if (offset < 0 || offset >= isize) {
-		inode_unlock(inode);
-		return -ENXIO;
-	}
-
-	blkbits = inode->i_sb->s_blocksize_bits;
-	start = offset >> blkbits;
-	last = start;
-	end = isize >> blkbits;
-	holeoff = offset;
-
-	do {
-		ret = ext4_get_next_extent(inode, last, end - last + 1, &es);
-		if (ret < 0) {
-			inode_unlock(inode);
-			return ret;
-		}
-		/* Found a hole? */
-		if (ret == 0 || es.es_lblk > last) {
-			if (last != start)
-				holeoff = (loff_t)last << blkbits;
-			break;
-		}
-		/*
-		 * If there is a unwritten extent at this offset,
-		 * it will be as a data or a hole according to page
-		 * cache that has data or not.
-		 */
-		if (ext4_es_is_unwritten(&es) &&
-		    ext4_find_unwritten_pgoff(inode, SEEK_HOLE,
-					      last + es.es_len, &holeoff))
-			break;
-
-		last += es.es_len;
-		holeoff = (loff_t)last << blkbits;
-		cond_resched();
-	} while (last <= end);
-
-	inode_unlock(inode);
-
-	if (holeoff > isize)
-		holeoff = isize;
-
-	return vfs_setpos(file, holeoff, maxsize);
-}
-
-/*
  * ext4_llseek() handles both block-mapped and extent-mapped maxbytes values
  * by calling generic_file_llseek_size() with the appropriate maxbytes
  * value for each.
@@ -695,18 +440,24 @@ loff_t ext4_llseek(struct file *file, loff_t offset, int whence)
 		maxbytes = inode->i_sb->s_maxbytes;
 
 	switch (whence) {
-	case SEEK_SET:
-	case SEEK_CUR:
-	case SEEK_END:
+	default:
 		return generic_file_llseek_size(file, offset, whence,
 						maxbytes, i_size_read(inode));
-	case SEEK_DATA:
-		return ext4_seek_data(file, offset, maxbytes);
 	case SEEK_HOLE:
-		return ext4_seek_hole(file, offset, maxbytes);
+		inode_lock_shared(inode);
+		offset = iomap_seek_hole(inode, offset, &ext4_iomap_ops);
+		inode_unlock_shared(inode);
+		break;
+	case SEEK_DATA:
+		inode_lock_shared(inode);
+		offset = iomap_seek_data(inode, offset, &ext4_iomap_ops);
+		inode_unlock_shared(inode);
+		break;
 	}
 
-	return -EINVAL;
+	if (offset < 0)
+		return offset;
+	return vfs_setpos(file, offset, maxbytes);
 }
 
 const struct file_operations ext4_file_operations = {
diff --git a/fs/ext4/fsync.c b/fs/ext4/fsync.c
index aae2c3971cef..26a7fe5c4fd3 100644
--- a/fs/ext4/fsync.c
+++ b/fs/ext4/fsync.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/fsync.c
  *
@@ -107,7 +108,7 @@ int ext4_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 
 	trace_ext4_sync_file_enter(file, datasync);
 
-	if (inode->i_sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(inode->i_sb)) {
 		/* Make sure that we read updated s_mount_flags value */
 		smp_rmb();
 		if (EXT4_SB(inode->i_sb)->s_mount_flags & EXT4_MF_FS_ABORTED)
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 71e93a23cec3..b4267d72f249 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/ialloc.c
  *
@@ -1138,9 +1139,7 @@ got:
 			   inode->i_ino);
 		goto out;
 	}
-	spin_lock(&sbi->s_next_gen_lock);
-	inode->i_generation = sbi->s_next_generation++;
-	spin_unlock(&sbi->s_next_gen_lock);
+	inode->i_generation = prandom_u32();
 
 	/* Precompute checksum seed for inode metadata */
 	if (ext4_has_metadata_csum(sb)) {
@@ -1382,7 +1381,7 @@ int ext4_init_inode_table(struct super_block *sb, ext4_group_t group,
 	int num, ret = 0, used_blks = 0;
 
 	/* This should not happen, but just to be sure check this */
-	if (sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(sb)) {
 		ret = 1;
 		goto out;
 	}
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 7ffa290cbb8e..c32802c956d5 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/indirect.c
  *
diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index 28c5c3abddb3..1367553c43bb 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -12,6 +12,7 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/iomap.h>
 #include <linux/fiemap.h>
 
 #include "ext4_jbd2.h"
@@ -302,11 +303,6 @@ static int ext4_create_inline_data(handle_t *handle,
 	EXT4_I(inode)->i_inline_size = len + EXT4_MIN_INLINE_DATA_SIZE;
 	ext4_clear_inode_flag(inode, EXT4_INODE_EXTENTS);
 	ext4_set_inode_flag(inode, EXT4_INODE_INLINE_DATA);
-	/*
-	 * Propagate changes to inode->i_flags as well - e.g. S_DAX may
-	 * get cleared
-	 */
-	ext4_set_inode_flags(inode);
 	get_bh(is.iloc.bh);
 	error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
 
@@ -451,11 +447,6 @@ static int ext4_destroy_inline_data_nolock(handle_t *handle,
 		}
 	}
 	ext4_clear_inode_flag(inode, EXT4_INODE_INLINE_DATA);
-	/*
-	 * Propagate changes to inode->i_flags as well - e.g. S_DAX may
-	 * get set.
-	 */
-	ext4_set_inode_flags(inode);
 
 	get_bh(is.iloc.bh);
 	error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
@@ -1827,6 +1818,38 @@ int ext4_destroy_inline_data(handle_t *handle, struct inode *inode)
 	return ret;
 }
 
+int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap)
+{
+	__u64 addr;
+	int error = -EAGAIN;
+	struct ext4_iloc iloc;
+
+	down_read(&EXT4_I(inode)->xattr_sem);
+	if (!ext4_has_inline_data(inode))
+		goto out;
+
+	error = ext4_get_inode_loc(inode, &iloc);
+	if (error)
+		goto out;
+
+	addr = (__u64)iloc.bh->b_blocknr << inode->i_sb->s_blocksize_bits;
+	addr += (char *)ext4_raw_inode(&iloc) - iloc.bh->b_data;
+	addr += offsetof(struct ext4_inode, i_block);
+
+	brelse(iloc.bh);
+
+	iomap->addr = addr;
+	iomap->offset = 0;
+	iomap->length = min_t(loff_t, ext4_get_inline_size(inode),
+			      i_size_read(inode));
+	iomap->type = 0;
+	iomap->flags = IOMAP_F_DATA_INLINE;
+
+out:
+	up_read(&EXT4_I(inode)->xattr_sem);
+	return error;
+}
+
 int ext4_inline_data_fiemap(struct inode *inode,
 			    struct fiemap_extent_info *fieinfo,
 			    int *has_inline, __u64 start, __u64 len)
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 31db875bc7a1..2633150e41b9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/inode.c
  *
@@ -3393,7 +3394,6 @@ static int ext4_releasepage(struct page *page, gfp_t wait)
 		return try_to_free_buffers(page);
 }
 
-#ifdef CONFIG_FS_DAX
 static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 			    unsigned flags, struct iomap *iomap)
 {
@@ -3402,17 +3402,54 @@ static int ext4_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
 	unsigned long first_block = offset >> blkbits;
 	unsigned long last_block = (offset + length - 1) >> blkbits;
 	struct ext4_map_blocks map;
+	bool delalloc = false;
 	int ret;
 
-	if (WARN_ON_ONCE(ext4_has_inline_data(inode)))
-		return -ERANGE;
+
+	if (flags & IOMAP_REPORT) {
+		if (ext4_has_inline_data(inode)) {
+			ret = ext4_inline_data_iomap(inode, iomap);
+			if (ret != -EAGAIN) {
+				if (ret == 0 && offset >= iomap->length)
+					ret = -ENOENT;
+				return ret;
+			}
+		}
+	} else {
+		if (WARN_ON_ONCE(ext4_has_inline_data(inode)))
+			return -ERANGE;
+	}
 
 	map.m_lblk = first_block;
 	map.m_len = last_block - first_block + 1;
 
-	if (!(flags & IOMAP_WRITE)) {
+	if (flags & IOMAP_REPORT) {
 		ret = ext4_map_blocks(NULL, inode, &map, 0);
-	} else {
+		if (ret < 0)
+			return ret;
+
+		if (ret == 0) {
+			ext4_lblk_t end = map.m_lblk + map.m_len - 1;
+			struct extent_status es;
+
+			ext4_es_find_delayed_extent_range(inode, map.m_lblk, end, &es);
+
+			if (!es.es_len || es.es_lblk > end) {
+				/* entire range is a hole */
+			} else if (es.es_lblk > map.m_lblk) {
+				/* range starts with a hole */
+				map.m_len = es.es_lblk - map.m_lblk;
+			} else {
+				ext4_lblk_t offs = 0;
+
+				if (es.es_lblk < map.m_lblk)
+					offs = map.m_lblk - es.es_lblk;
+				map.m_lblk = es.es_lblk + offs;
+				map.m_len = es.es_len - offs;
+				delalloc = true;
+			}
+		}
+	} else if (flags & IOMAP_WRITE) {
 		int dio_credits;
 		handle_t *handle;
 		int retries = 0;
@@ -3463,17 +3500,21 @@ retry:
 			}
 		}
 		ext4_journal_stop(handle);
+	} else {
+		ret = ext4_map_blocks(NULL, inode, &map, 0);
+		if (ret < 0)
+			return ret;
 	}
 
 	iomap->flags = 0;
 	iomap->bdev = inode->i_sb->s_bdev;
 	iomap->dax_dev = sbi->s_daxdev;
 	iomap->offset = first_block << blkbits;
+	iomap->length = (u64)map.m_len << blkbits;
 
 	if (ret == 0) {
-		iomap->type = IOMAP_HOLE;
-		iomap->blkno = IOMAP_NULL_BLOCK;
-		iomap->length = (u64)map.m_len << blkbits;
+		iomap->type = delalloc ? IOMAP_DELALLOC : IOMAP_HOLE;
+		iomap->addr = IOMAP_NULL_ADDR;
 	} else {
 		if (map.m_flags & EXT4_MAP_MAPPED) {
 			iomap->type = IOMAP_MAPPED;
@@ -3483,12 +3524,12 @@ retry:
 			WARN_ON_ONCE(1);
 			return -EIO;
 		}
-		iomap->blkno = (sector_t)map.m_pblk << (blkbits - 9);
-		iomap->length = (u64)map.m_len << blkbits;
+		iomap->addr = (u64)map.m_pblk << blkbits;
 	}
 
 	if (map.m_flags & EXT4_MAP_NEW)
 		iomap->flags |= IOMAP_F_NEW;
+
 	return 0;
 }
 
@@ -3549,8 +3590,6 @@ const struct iomap_ops ext4_iomap_ops = {
 	.iomap_end		= ext4_iomap_end,
 };
 
-#endif
-
 static int ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
 			    ssize_t size, void *private)
 {
@@ -4572,6 +4611,21 @@ int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
 		!ext4_test_inode_state(inode, EXT4_STATE_XATTR));
 }
 
+static bool ext4_should_use_dax(struct inode *inode)
+{
+	if (!test_opt(inode->i_sb, DAX))
+		return false;
+	if (!S_ISREG(inode->i_mode))
+		return false;
+	if (ext4_should_journal_data(inode))
+		return false;
+	if (ext4_has_inline_data(inode))
+		return false;
+	if (ext4_encrypted_inode(inode))
+		return false;
+	return true;
+}
+
 void ext4_set_inode_flags(struct inode *inode)
 {
 	unsigned int flags = EXT4_I(inode)->i_flags;
@@ -4587,12 +4641,13 @@ void ext4_set_inode_flags(struct inode *inode)
 		new_fl |= S_NOATIME;
 	if (flags & EXT4_DIRSYNC_FL)
 		new_fl |= S_DIRSYNC;
-	if (test_opt(inode->i_sb, DAX) && S_ISREG(inode->i_mode) &&
-	    !ext4_should_journal_data(inode) && !ext4_has_inline_data(inode) &&
-	    !ext4_encrypted_inode(inode))
+	if (ext4_should_use_dax(inode))
 		new_fl |= S_DAX;
+	if (flags & EXT4_ENCRYPT_FL)
+		new_fl |= S_ENCRYPTED;
 	inode_set_flags(inode, new_fl,
-			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_DAX);
+			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|S_DAX|
+			S_ENCRYPTED);
 }
 
 static blkcnt_t ext4_inode_blocks(struct ext4_inode *raw_inode,
@@ -5308,6 +5363,10 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 	if (error)
 		return error;
 
+	error = fscrypt_prepare_setattr(dentry, attr);
+	if (error)
+		return error;
+
 	if (is_quota_modification(inode, attr)) {
 		error = dquot_initialize(inode);
 		if (error)
@@ -5353,14 +5412,6 @@ int ext4_setattr(struct dentry *dentry, struct iattr *attr)
 		loff_t oldsize = inode->i_size;
 		int shrink = (attr->ia_size <= inode->i_size);
 
-		if (ext4_encrypted_inode(inode)) {
-			error = fscrypt_get_encryption_info(inode);
-			if (error)
-				return error;
-			if (!fscrypt_has_encryption_key(inode))
-				return -ENOKEY;
-		}
-
 		if (!(ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS))) {
 			struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
 
@@ -5966,11 +6017,6 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
 		ext4_clear_inode_flag(inode, EXT4_INODE_JOURNAL_DATA);
 	}
 	ext4_set_aops(inode);
-	/*
-	 * Update inode->i_flags after EXT4_INODE_JOURNAL_DATA was updated.
-	 * E.g. S_DAX may get cleared / set.
-	 */
-	ext4_set_inode_flags(inode);
 
 	jbd2_journal_unlock_updates(journal);
 	percpu_up_write(&sbi->s_journal_flag_rwsem);
@@ -6106,70 +6152,3 @@ int ext4_filemap_fault(struct vm_fault *vmf)
 
 	return err;
 }
-
-/*
- * Find the first extent at or after @lblk in an inode that is not a hole.
- * Search for @map_len blocks at most. The extent is returned in @result.
- *
- * The function returns 1 if we found an extent. The function returns 0 in
- * case there is no extent at or after @lblk and in that case also sets
- * @result->es_len to 0. In case of error, the error code is returned.
- */
-int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk,
-			 unsigned int map_len, struct extent_status *result)
-{
-	struct ext4_map_blocks map;
-	struct extent_status es = {};
-	int ret;
-
-	map.m_lblk = lblk;
-	map.m_len = map_len;
-
-	/*
-	 * For non-extent based files this loop may iterate several times since
-	 * we do not determine full hole size.
-	 */
-	while (map.m_len > 0) {
-		ret = ext4_map_blocks(NULL, inode, &map, 0);
-		if (ret < 0)
-			return ret;
-		/* There's extent covering m_lblk? Just return it. */
-		if (ret > 0) {
-			int status;
-
-			ext4_es_store_pblock(result, map.m_pblk);
-			result->es_lblk = map.m_lblk;
-			result->es_len = map.m_len;
-			if (map.m_flags & EXT4_MAP_UNWRITTEN)
-				status = EXTENT_STATUS_UNWRITTEN;
-			else
-				status = EXTENT_STATUS_WRITTEN;
-			ext4_es_store_status(result, status);
-			return 1;
-		}
-		ext4_es_find_delayed_extent_range(inode, map.m_lblk,
-						  map.m_lblk + map.m_len - 1,
-						  &es);
-		/* Is delalloc data before next block in extent tree? */
-		if (es.es_len && es.es_lblk < map.m_lblk + map.m_len) {
-			ext4_lblk_t offset = 0;
-
-			if (es.es_lblk < lblk)
-				offset = lblk - es.es_lblk;
-			result->es_lblk = es.es_lblk + offset;
-			ext4_es_store_pblock(result,
-					     ext4_es_pblock(&es) + offset);
-			result->es_len = es.es_len - offset;
-			ext4_es_store_status(result, ext4_es_status(&es));
-
-			return 1;
-		}
-		/* There's a hole at m_lblk, advance us after it */
-		map.m_lblk += map.m_len;
-		map_len -= map.m_len;
-		map.m_len = map_len;
-		cond_resched();
-	}
-	result->es_len = 0;
-	return 0;
-}
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index afb66d4ab5cf..b7558f292420 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/ioctl.c
  *
@@ -14,6 +15,7 @@
 #include <linux/mount.h>
 #include <linux/file.h>
 #include <linux/quotaops.h>
+#include <linux/random.h>
 #include <linux/uuid.h>
 #include <linux/uaccess.h>
 #include <linux/delay.h>
@@ -98,7 +100,6 @@ static long swap_inode_boot_loader(struct super_block *sb,
 	int err;
 	struct inode *inode_bl;
 	struct ext4_inode_info *ei_bl;
-	struct ext4_sb_info *sbi = EXT4_SB(sb);
 
 	if (inode->i_nlink != 1 || !S_ISREG(inode->i_mode))
 		return -EINVAL;
@@ -157,10 +158,8 @@ static long swap_inode_boot_loader(struct super_block *sb,
 
 	inode->i_ctime = inode_bl->i_ctime = current_time(inode);
 
-	spin_lock(&sbi->s_next_gen_lock);
-	inode->i_generation = sbi->s_next_generation++;
-	inode_bl->i_generation = sbi->s_next_generation++;
-	spin_unlock(&sbi->s_next_gen_lock);
+	inode->i_generation = prandom_u32();
+	inode_bl->i_generation = prandom_u32();
 
 	ext4_discard_preallocations(inode);
 
@@ -290,10 +289,20 @@ flags_err:
 	if (err)
 		goto flags_out;
 
-	if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL))
+	if ((jflag ^ oldflags) & (EXT4_JOURNAL_DATA_FL)) {
+		/*
+		 * Changes to the journaling mode can cause unsafe changes to
+		 * S_DAX if we are using the DAX mount option.
+		 */
+		if (test_opt(inode->i_sb, DAX)) {
+			err = -EBUSY;
+			goto flags_out;
+		}
+
 		err = ext4_change_inode_journal_flag(inode, jflag);
-	if (err)
-		goto flags_out;
+		if (err)
+			goto flags_out;
+	}
 	if (migrate) {
 		if (flags & EXT4_EXTENTS_FL)
 			err = ext4_ext_migrate(inode);
@@ -861,12 +870,6 @@ group_add_out:
 		int err = 0, err2 = 0;
 		ext4_group_t o_group = EXT4_SB(sb)->s_groups_count;
 
-		if (ext4_has_feature_bigalloc(sb)) {
-			ext4_msg(sb, KERN_ERR,
-				 "Online resizing not (yet) supported with bigalloc");
-			return -EOPNOTSUPP;
-		}
-
 		if (copy_from_user(&n_blocks_count, (__u64 __user *)arg,
 				   sizeof(__u64))) {
 			return -EFAULT;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index 701085620cd8..d9f8b90a93ed 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4994,8 +4994,11 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
 	struct ext4_group_desc *desc;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_buddy e4b;
-	int err = 0, ret, blk_free_count;
-	ext4_grpblk_t blocks_freed;
+	int err = 0, ret, free_clusters_count;
+	ext4_grpblk_t clusters_freed;
+	ext4_fsblk_t first_cluster = EXT4_B2C(sbi, block);
+	ext4_fsblk_t last_cluster = EXT4_B2C(sbi, block + count - 1);
+	unsigned long cluster_count = last_cluster - first_cluster + 1;
 
 	ext4_debug("Adding block(s) %llu-%llu\n", block, block + count - 1);
 
@@ -5007,8 +5010,8 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
 	 * Check to see if we are freeing blocks across a group
 	 * boundary.
 	 */
-	if (bit + count > EXT4_BLOCKS_PER_GROUP(sb)) {
-		ext4_warning(sb, "too much blocks added to group %u",
+	if (bit + cluster_count > EXT4_CLUSTERS_PER_GROUP(sb)) {
+		ext4_warning(sb, "too many blocks added to group %u",
 			     block_group);
 		err = -EINVAL;
 		goto error_return;
@@ -5054,14 +5057,14 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
 	if (err)
 		goto error_return;
 
-	for (i = 0, blocks_freed = 0; i < count; i++) {
+	for (i = 0, clusters_freed = 0; i < cluster_count; i++) {
 		BUFFER_TRACE(bitmap_bh, "clear bit");
 		if (!mb_test_bit(bit + i, bitmap_bh->b_data)) {
 			ext4_error(sb, "bit already cleared for block %llu",
 				   (ext4_fsblk_t)(block + i));
 			BUFFER_TRACE(bitmap_bh, "bit already cleared");
 		} else {
-			blocks_freed++;
+			clusters_freed++;
 		}
 	}
 
@@ -5075,19 +5078,20 @@ int ext4_group_add_blocks(handle_t *handle, struct super_block *sb,
 	 * them with group lock_held
 	 */
 	ext4_lock_group(sb, block_group);
-	mb_clear_bits(bitmap_bh->b_data, bit, count);
-	mb_free_blocks(NULL, &e4b, bit, count);
-	blk_free_count = blocks_freed + ext4_free_group_clusters(sb, desc);
-	ext4_free_group_clusters_set(sb, desc, blk_free_count);
+	mb_clear_bits(bitmap_bh->b_data, bit, cluster_count);
+	mb_free_blocks(NULL, &e4b, bit, cluster_count);
+	free_clusters_count = clusters_freed +
+		ext4_free_group_clusters(sb, desc);
+	ext4_free_group_clusters_set(sb, desc, free_clusters_count);
 	ext4_block_bitmap_csum_set(sb, block_group, desc, bitmap_bh);
 	ext4_group_desc_csum_set(sb, block_group, desc);
 	ext4_unlock_group(sb, block_group);
 	percpu_counter_add(&sbi->s_freeclusters_counter,
-			   EXT4_NUM_B2C(sbi, blocks_freed));
+			   clusters_freed);
 
 	if (sbi->s_log_groups_per_flex) {
 		ext4_group_t flex_group = ext4_flex_group(sbi, block_group);
-		atomic64_add(EXT4_NUM_B2C(sbi, blocks_freed),
+		atomic64_add(clusters_freed,
 			     &sbi->s_flex_groups[flex_group].free_clusters);
 	}
 
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index 009300ee1561..dcf52540f379 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  fs/ext4/mballoc.h
  *
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 77cdce1f17ce..27b9a76a0dfa 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/random.h>
 #include <linux/buffer_head.h>
@@ -185,7 +186,7 @@ static int kmmpd(void *data)
 			goto exit_thread;
 		}
 
-		if (sb->s_flags & MS_RDONLY) {
+		if (sb_rdonly(sb)) {
 			ext4_warning(sb, "kmmpd being stopped since filesystem "
 				     "has been remounted as readonly.");
 			goto exit_thread;
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index c1cf020d1889..798b3ac680db 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/namei.c
  *
@@ -1538,24 +1539,14 @@ static struct dentry *ext4_lookup(struct inode *dir, struct dentry *dentry, unsi
 	struct inode *inode;
 	struct ext4_dir_entry_2 *de;
 	struct buffer_head *bh;
+	int err;
 
-	if (ext4_encrypted_inode(dir)) {
-		int res = fscrypt_get_encryption_info(dir);
-
-		/*
-		 * DCACHE_ENCRYPTED_WITH_KEY is set if the dentry is
-		 * created while the directory was encrypted and we
-		 * have access to the key.
-		 */
-		if (fscrypt_has_encryption_key(dir))
-			fscrypt_set_encrypted_dentry(dentry);
-		fscrypt_set_d_op(dentry);
-		if (res && res != -ENOKEY)
-			return ERR_PTR(res);
-	}
+	err = fscrypt_prepare_lookup(dir, dentry, flags);
+	if (err)
+		return ERR_PTR(err);
 
-       if (dentry->d_name.len > EXT4_NAME_LEN)
-	       return ERR_PTR(-ENAMETOOLONG);
+	if (dentry->d_name.len > EXT4_NAME_LEN)
+		return ERR_PTR(-ENAMETOOLONG);
 
 	bh = ext4_find_entry(dir, &dentry->d_name, &de, NULL);
 	if (IS_ERR(bh))
@@ -3221,9 +3212,10 @@ static int ext4_link(struct dentry *old_dentry,
 
 	if (inode->i_nlink >= EXT4_LINK_MAX)
 		return -EMLINK;
-	if (ext4_encrypted_inode(dir) &&
-			!fscrypt_has_permitted_context(dir, inode))
-		return -EPERM;
+
+	err = fscrypt_prepare_link(old_dentry, dir, dentry);
+	if (err)
+		return err;
 
        if ((ext4_test_inode_flag(dir, EXT4_INODE_PROJINHERIT)) &&
 	   (!projid_eq(EXT4_I(dir)->i_projid,
@@ -3515,12 +3507,6 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 			EXT4_I(old_dentry->d_inode)->i_projid)))
 		return -EXDEV;
 
-	if ((ext4_encrypted_inode(old_dir) &&
-	     !fscrypt_has_encryption_key(old_dir)) ||
-	    (ext4_encrypted_inode(new_dir) &&
-	     !fscrypt_has_encryption_key(new_dir)))
-		return -ENOKEY;
-
 	retval = dquot_initialize(old.dir);
 	if (retval)
 		return retval;
@@ -3549,13 +3535,6 @@ static int ext4_rename(struct inode *old_dir, struct dentry *old_dentry,
 	if (!old.bh || le32_to_cpu(old.de->inode) != old.inode->i_ino)
 		goto end_rename;
 
-	if ((old.dir != new.dir) &&
-	    ext4_encrypted_inode(new.dir) &&
-	    !fscrypt_has_permitted_context(new.dir, old.inode)) {
-		retval = -EPERM;
-		goto end_rename;
-	}
-
 	new.bh = ext4_find_entry(new.dir, &new.dentry->d_name,
 				 &new.de, &new.inlined);
 	if (IS_ERR(new.bh)) {
@@ -3721,19 +3700,6 @@ static int ext4_cross_rename(struct inode *old_dir, struct dentry *old_dentry,
 	int retval;
 	struct timespec ctime;
 
-	if ((ext4_encrypted_inode(old_dir) &&
-	     !fscrypt_has_encryption_key(old_dir)) ||
-	    (ext4_encrypted_inode(new_dir) &&
-	     !fscrypt_has_encryption_key(new_dir)))
-		return -ENOKEY;
-
-	if ((ext4_encrypted_inode(old_dir) ||
-	     ext4_encrypted_inode(new_dir)) &&
-	    (old_dir != new_dir) &&
-	    (!fscrypt_has_permitted_context(new_dir, old.inode) ||
-	     !fscrypt_has_permitted_context(old_dir, new.inode)))
-		return -EPERM;
-
 	if ((ext4_test_inode_flag(new_dir, EXT4_INODE_PROJINHERIT) &&
 	     !projid_eq(EXT4_I(new_dir)->i_projid,
 			EXT4_I(old_dentry->d_inode)->i_projid)) ||
@@ -3860,12 +3826,19 @@ static int ext4_rename2(struct inode *old_dir, struct dentry *old_dentry,
 			struct inode *new_dir, struct dentry *new_dentry,
 			unsigned int flags)
 {
+	int err;
+
 	if (unlikely(ext4_forced_shutdown(EXT4_SB(old_dir->i_sb))))
 		return -EIO;
 
 	if (flags & ~(RENAME_NOREPLACE | RENAME_EXCHANGE | RENAME_WHITEOUT))
 		return -EINVAL;
 
+	err = fscrypt_prepare_rename(old_dir, old_dentry, new_dir, new_dentry,
+				     flags);
+	if (err)
+		return err;
+
 	if (flags & RENAME_EXCHANGE) {
 		return ext4_cross_rename(old_dir, old_dentry,
 					 new_dir, new_dentry);
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 55ad7dd149d0..db7590178dfc 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/page-io.c
  *
diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index 04c90643af7a..9ffa6fad18db 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/readpage.c
  *
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 035cd3f4785e..50443bda8e98 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/resize.c
  *
@@ -106,7 +107,7 @@ static int verify_group_input(struct super_block *sb,
 
 	overhead = ext4_group_overhead_blocks(sb, group);
 	metaend = start + overhead;
-	input->free_blocks_count = free_blocks_count =
+	input->free_clusters_count = free_blocks_count =
 		input->blocks_count - 2 - overhead - sbi->s_itb_per_group;
 
 	if (test_opt(sb, DEBUG))
@@ -257,6 +258,7 @@ static int ext4_alloc_group_tables(struct super_block *sb,
 	ext4_group_t last_group;
 	unsigned overhead;
 	__u16 uninit_mask = (flexbg_size > 1) ? ~EXT4_BG_BLOCK_UNINIT : ~0;
+	int i;
 
 	BUG_ON(flex_gd->count == 0 || group_data == NULL);
 
@@ -293,7 +295,7 @@ next_group:
 		group_data[bb_index].block_bitmap = start_blk++;
 		group = ext4_get_group_number(sb, start_blk - 1);
 		group -= group_data[0].group;
-		group_data[group].free_blocks_count--;
+		group_data[group].mdata_blocks++;
 		flex_gd->bg_flags[group] &= uninit_mask;
 	}
 
@@ -304,7 +306,7 @@ next_group:
 		group_data[ib_index].inode_bitmap = start_blk++;
 		group = ext4_get_group_number(sb, start_blk - 1);
 		group -= group_data[0].group;
-		group_data[group].free_blocks_count--;
+		group_data[group].mdata_blocks++;
 		flex_gd->bg_flags[group] &= uninit_mask;
 	}
 
@@ -323,15 +325,22 @@ next_group:
 		if (start_blk + itb > next_group_start) {
 			flex_gd->bg_flags[group + 1] &= uninit_mask;
 			overhead = start_blk + itb - next_group_start;
-			group_data[group + 1].free_blocks_count -= overhead;
+			group_data[group + 1].mdata_blocks += overhead;
 			itb -= overhead;
 		}
 
-		group_data[group].free_blocks_count -= itb;
+		group_data[group].mdata_blocks += itb;
 		flex_gd->bg_flags[group] &= uninit_mask;
 		start_blk += EXT4_SB(sb)->s_itb_per_group;
 	}
 
+	/* Update free clusters count to exclude metadata blocks */
+	for (i = 0; i < flex_gd->count; i++) {
+		group_data[i].free_clusters_count -=
+				EXT4_NUM_B2C(EXT4_SB(sb),
+					     group_data[i].mdata_blocks);
+	}
+
 	if (test_opt(sb, DEBUG)) {
 		int i;
 		group = group_data[0].group;
@@ -341,12 +350,13 @@ next_group:
 		       flexbg_size);
 
 		for (i = 0; i < flex_gd->count; i++) {
-			printk(KERN_DEBUG "adding %s group %u: %u "
-			       "blocks (%d free)\n",
+			ext4_debug(
+			       "adding %s group %u: %u blocks (%d free, %d mdata blocks)\n",
 			       ext4_bg_has_super(sb, group + i) ? "normal" :
 			       "no-super", group + i,
 			       group_data[i].blocks_count,
-			       group_data[i].free_blocks_count);
+			       group_data[i].free_clusters_count,
+			       group_data[i].mdata_blocks);
 		}
 	}
 	return 0;
@@ -398,7 +408,7 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh)
 }
 
 /*
- * set_flexbg_block_bitmap() mark @count blocks starting from @block used.
+ * set_flexbg_block_bitmap() mark clusters [@first_cluster, @last_cluster] used.
  *
  * Helper function for ext4_setup_new_group_blocks() which set .
  *
@@ -408,22 +418,26 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh)
  */
 static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 			struct ext4_new_flex_group_data *flex_gd,
-			ext4_fsblk_t block, ext4_group_t count)
+			ext4_fsblk_t first_cluster, ext4_fsblk_t last_cluster)
 {
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	ext4_group_t count = last_cluster - first_cluster + 1;
 	ext4_group_t count2;
 
-	ext4_debug("mark blocks [%llu/%u] used\n", block, count);
-	for (count2 = count; count > 0; count -= count2, block += count2) {
+	ext4_debug("mark clusters [%llu-%llu] used\n", first_cluster,
+		   last_cluster);
+	for (count2 = count; count > 0;
+	     count -= count2, first_cluster += count2) {
 		ext4_fsblk_t start;
 		struct buffer_head *bh;
 		ext4_group_t group;
 		int err;
 
-		group = ext4_get_group_number(sb, block);
-		start = ext4_group_first_block_no(sb, group);
+		group = ext4_get_group_number(sb, EXT4_C2B(sbi, first_cluster));
+		start = EXT4_B2C(sbi, ext4_group_first_block_no(sb, group));
 		group -= flex_gd->groups[0].group;
 
-		count2 = EXT4_BLOCKS_PER_GROUP(sb) - (block - start);
+		count2 = EXT4_CLUSTERS_PER_GROUP(sb) - (first_cluster - start);
 		if (count2 > count)
 			count2 = count;
 
@@ -444,9 +458,9 @@ static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
 		err = ext4_journal_get_write_access(handle, bh);
 		if (err)
 			return err;
-		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
-			   block - start, count2);
-		ext4_set_bits(bh->b_data, block - start, count2);
+		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n",
+			   first_cluster, first_cluster - start, count2);
+		ext4_set_bits(bh->b_data, first_cluster - start, count2);
 
 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
 		if (unlikely(err))
@@ -595,9 +609,10 @@ handle_bb:
 		if (overhead != 0) {
 			ext4_debug("mark backup superblock %#04llx (+0)\n",
 				   start);
-			ext4_set_bits(bh->b_data, 0, overhead);
+			ext4_set_bits(bh->b_data, 0,
+				      EXT4_NUM_B2C(sbi, overhead));
 		}
-		ext4_mark_bitmap_end(group_data[i].blocks_count,
+		ext4_mark_bitmap_end(EXT4_B2C(sbi, group_data[i].blocks_count),
 				     sb->s_blocksize * 8, bh->b_data);
 		err = ext4_handle_dirty_metadata(handle, NULL, bh);
 		if (err)
@@ -642,7 +657,11 @@ handle_ib:
 				continue;
 			}
 			err = set_flexbg_block_bitmap(sb, handle,
-						flex_gd, start, count);
+						      flex_gd,
+						      EXT4_B2C(sbi, start),
+						      EXT4_B2C(sbi,
+							       start + count
+							       - 1));
 			if (err)
 				goto out;
 			count = group_table_count[j];
@@ -652,7 +671,11 @@ handle_ib:
 
 		if (count) {
 			err = set_flexbg_block_bitmap(sb, handle,
-						flex_gd, start, count);
+						      flex_gd,
+						      EXT4_B2C(sbi, start),
+						      EXT4_B2C(sbi,
+							       start + count
+							       - 1));
 			if (err)
 				goto out;
 		}
@@ -840,7 +863,8 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 		ext4_std_error(sb, err);
 		goto exit_inode;
 	}
-	inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >> 9;
+	inode->i_blocks -= (gdbackups + 1) * sb->s_blocksize >>
+			   (9 - EXT4_SB(sb)->s_cluster_bits);
 	ext4_mark_iloc_dirty(handle, inode, &iloc);
 	memset(gdb_bh->b_data, 0, sb->s_blocksize);
 	err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
@@ -935,6 +959,7 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
 {
 	struct super_block *sb = inode->i_sb;
 	int reserved_gdb =le16_to_cpu(EXT4_SB(sb)->s_es->s_reserved_gdt_blocks);
+	int cluster_bits = EXT4_SB(sb)->s_cluster_bits;
 	struct buffer_head **primary;
 	struct buffer_head *dind;
 	struct ext4_iloc iloc;
@@ -1010,7 +1035,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
 		if (!err)
 			err = err2;
 	}
-	inode->i_blocks += reserved_gdb * sb->s_blocksize >> 9;
+
+	inode->i_blocks += reserved_gdb * sb->s_blocksize >> (9 - cluster_bits);
 	ext4_mark_iloc_dirty(handle, inode, &iloc);
 
 exit_bh:
@@ -1244,7 +1270,7 @@ static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
 	ext4_group_t			group;
 	__u16				*bg_flags = flex_gd->bg_flags;
 	int				i, gdb_off, gdb_num, err = 0;
-	
+
 
 	for (i = 0; i < flex_gd->count; i++, group_data++, bg_flags++) {
 		group = group_data->group;
@@ -1271,7 +1297,7 @@ static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
 
 		ext4_inode_table_set(sb, gdp, group_data->inode_table);
 		ext4_free_group_clusters_set(sb, gdp,
-			EXT4_NUM_B2C(sbi, group_data->free_blocks_count));
+					     group_data->free_clusters_count);
 		ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
 		if (ext4_has_group_desc_csum(sb))
 			ext4_itable_unused_set(sb, gdp,
@@ -1327,7 +1353,7 @@ static void ext4_update_super(struct super_block *sb,
 	 */
 	for (i = 0; i < flex_gd->count; i++) {
 		blocks_count += group_data[i].blocks_count;
-		free_blocks += group_data[i].free_blocks_count;
+		free_blocks += EXT4_C2B(sbi, group_data[i].free_clusters_count);
 	}
 
 	reserved_blocks = ext4_r_blocks_count(es) * 100;
@@ -1499,17 +1525,18 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
 				    ext4_fsblk_t n_blocks_count,
 				    unsigned long flexbg_size)
 {
-	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
 	struct ext4_new_group_data *group_data = flex_gd->groups;
 	ext4_fsblk_t o_blocks_count;
 	ext4_group_t n_group;
 	ext4_group_t group;
 	ext4_group_t last_group;
 	ext4_grpblk_t last;
-	ext4_grpblk_t blocks_per_group;
+	ext4_grpblk_t clusters_per_group;
 	unsigned long i;
 
-	blocks_per_group = EXT4_BLOCKS_PER_GROUP(sb);
+	clusters_per_group = EXT4_CLUSTERS_PER_GROUP(sb);
 
 	o_blocks_count = ext4_blocks_count(es);
 
@@ -1530,9 +1557,10 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
 		int overhead;
 
 		group_data[i].group = group + i;
-		group_data[i].blocks_count = blocks_per_group;
+		group_data[i].blocks_count = EXT4_BLOCKS_PER_GROUP(sb);
 		overhead = ext4_group_overhead_blocks(sb, group + i);
-		group_data[i].free_blocks_count = blocks_per_group - overhead;
+		group_data[i].mdata_blocks = overhead;
+		group_data[i].free_clusters_count = EXT4_CLUSTERS_PER_GROUP(sb);
 		if (ext4_has_group_desc_csum(sb)) {
 			flex_gd->bg_flags[i] = EXT4_BG_BLOCK_UNINIT |
 					       EXT4_BG_INODE_UNINIT;
@@ -1546,10 +1574,10 @@ static int ext4_setup_next_flex_gd(struct super_block *sb,
 		/* We need to initialize block bitmap of last group. */
 		flex_gd->bg_flags[i - 1] &= ~EXT4_BG_BLOCK_UNINIT;
 
-	if ((last_group == n_group) && (last != blocks_per_group - 1)) {
-		group_data[i - 1].blocks_count = last + 1;
-		group_data[i - 1].free_blocks_count -= blocks_per_group-
-					last - 1;
+	if ((last_group == n_group) && (last != clusters_per_group - 1)) {
+		group_data[i - 1].blocks_count = EXT4_C2B(sbi, last + 1);
+		group_data[i - 1].free_clusters_count -= clusters_per_group -
+						       last - 1;
 	}
 
 	return 1;
@@ -1796,7 +1824,8 @@ static int ext4_convert_meta_bg(struct super_block *sb, struct inode *inode)
 		}
 
 		/* Do a quick sanity check of the resize inode */
-		if (inode->i_blocks != 1 << (inode->i_blkbits - 9))
+		if (inode->i_blocks != 1 << (inode->i_blkbits -
+					     (9 - sbi->s_cluster_bits)))
 			goto invalid_resize_inode;
 		for (i = 0; i < EXT4_N_BLOCKS; i++) {
 			if (i == EXT4_DIND_BLOCK) {
@@ -1959,7 +1988,7 @@ retry:
 	if (n_group == o_group)
 		add = n_blocks_count - o_blocks_count;
 	else
-		add = EXT4_BLOCKS_PER_GROUP(sb) - (offset + 1);
+		add = EXT4_C2B(sbi, EXT4_CLUSTERS_PER_GROUP(sb) - (offset + 1));
 	if (add > 0) {
 		err = ext4_group_extend_no_check(sb, o_blocks_count, add);
 		if (err)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 71b9a667e1bc..0556cd036b69 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -405,7 +405,7 @@ static void ext4_journal_commit_callback(journal_t *journal, transaction_t *txn)
 
 static void ext4_handle_error(struct super_block *sb)
 {
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	if (!test_opt(sb, ERRORS_CONT)) {
@@ -587,8 +587,7 @@ void __ext4_std_error(struct super_block *sb, const char *function,
 	/* Special case: if the error is EROFS, and we're not already
 	 * inside a transaction, then there's really no point in logging
 	 * an error. */
-	if (errno == -EROFS && journal_current_handle() == NULL &&
-	    (sb->s_flags & MS_RDONLY))
+	if (errno == -EROFS && journal_current_handle() == NULL && sb_rdonly(sb))
 		return;
 
 	if (ext4_error_ratelimit(sb)) {
@@ -628,7 +627,7 @@ void __ext4_abort(struct super_block *sb, const char *function,
 	       sb->s_id, function, line, &vaf);
 	va_end(args);
 
-	if ((sb->s_flags & MS_RDONLY) == 0) {
+	if (sb_rdonly(sb) == 0) {
 		ext4_msg(sb, KERN_CRIT, "Remounting filesystem read-only");
 		EXT4_SB(sb)->s_mount_flags |= EXT4_MF_FS_ABORTED;
 		/*
@@ -889,11 +888,11 @@ static void ext4_put_super(struct super_block *sb)
 	ext4_mb_release(sb);
 	ext4_ext_release(sb);
 
-	if (!(sb->s_flags & MS_RDONLY) && !aborted) {
+	if (!sb_rdonly(sb) && !aborted) {
 		ext4_clear_feature_journal_needs_recovery(sb);
 		es->s_state = cpu_to_le16(sbi->s_mount_state);
 	}
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		ext4_commit_super(sb, 1);
 
 	for (i = 0; i < sbi->s_gdb_count; i++)
@@ -1160,6 +1159,9 @@ static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
 	if (inode->i_ino == EXT4_ROOT_INO)
 		return -EPERM;
 
+	if (WARN_ON_ONCE(IS_DAX(inode) && i_size_read(inode)))
+		return -EINVAL;
+
 	res = ext4_convert_inline_data(inode);
 	if (res)
 		return res;
@@ -1182,7 +1184,8 @@ static int ext4_set_context(struct inode *inode, const void *ctx, size_t len,
 			ext4_clear_inode_state(inode,
 					EXT4_STATE_MAY_INLINE_DATA);
 			/*
-			 * Update inode->i_flags - e.g. S_DAX may get disabled
+			 * Update inode->i_flags - S_ENCRYPTED will be enabled,
+			 * S_DAX may be disabled
 			 */
 			ext4_set_inode_flags(inode);
 		}
@@ -1207,7 +1210,10 @@ retry:
 				    ctx, len, 0);
 	if (!res) {
 		ext4_set_inode_flag(inode, EXT4_INODE_ENCRYPT);
-		/* Update inode->i_flags - e.g. S_DAX may get disabled */
+		/*
+		 * Update inode->i_flags - S_ENCRYPTED will be enabled,
+		 * S_DAX may be disabled
+		 */
 		ext4_set_inode_flags(inode);
 		res = ext4_mark_inode_dirty(handle, inode);
 		if (res)
@@ -1238,14 +1244,9 @@ static const struct fscrypt_operations ext4_cryptops = {
 	.get_context		= ext4_get_context,
 	.set_context		= ext4_set_context,
 	.dummy_context		= ext4_dummy_context,
-	.is_encrypted		= ext4_encrypted_inode,
 	.empty_dir		= ext4_empty_dir,
 	.max_namelen		= ext4_max_namelen,
 };
-#else
-static const struct fscrypt_operations ext4_cryptops = {
-	.is_encrypted		= ext4_encrypted_inode,
-};
 #endif
 
 #ifdef CONFIG_QUOTA
@@ -1678,7 +1679,7 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token,
 		sbi->s_mount_flags |= EXT4_MF_FS_ABORTED;
 		return 1;
 	case Opt_i_version:
-		sb->s_flags |= MS_I_VERSION;
+		sb->s_flags |= SB_I_VERSION;
 		return 1;
 	case Opt_lazytime:
 		sb->s_flags |= MS_LAZYTIME;
@@ -2061,7 +2062,7 @@ static int _ext4_show_options(struct seq_file *seq, struct super_block *sb,
 		SEQ_OPTS_PRINT("min_batch_time=%u", sbi->s_min_batch_time);
 	if (nodefs || sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME)
 		SEQ_OPTS_PRINT("max_batch_time=%u", sbi->s_max_batch_time);
-	if (sb->s_flags & MS_I_VERSION)
+	if (sb->s_flags & SB_I_VERSION)
 		SEQ_OPTS_PUTS("i_version");
 	if (nodefs || sbi->s_stripe)
 		SEQ_OPTS_PRINT("stripe=%lu", sbi->s_stripe);
@@ -2100,7 +2101,7 @@ int ext4_seq_options_show(struct seq_file *seq, void *offset)
 	struct super_block *sb = seq->private;
 	int rc;
 
-	seq_puts(seq, (sb->s_flags & MS_RDONLY) ? "ro" : "rw");
+	seq_puts(seq, sb_rdonly(sb) ? "ro" : "rw");
 	rc = _ext4_show_options(seq, sb, 1);
 	seq_puts(seq, "\n");
 	return rc;
@@ -2368,7 +2369,7 @@ static int ext4_check_descriptors(struct super_block *sb,
 				 "Checksum for group %u failed (%u!=%u)",
 				 i, le16_to_cpu(ext4_group_desc_csum(sb, i,
 				     gdp)), le16_to_cpu(gdp->bg_checksum));
-			if (!(sb->s_flags & MS_RDONLY)) {
+			if (!sb_rdonly(sb)) {
 				ext4_unlock_group(sb, i);
 				return 0;
 			}
@@ -2792,14 +2793,11 @@ static int ext4_feature_set_ok(struct super_block *sb, int readonly)
  * This function is called once a day if we have errors logged
  * on the file system
  */
-static void print_daily_error_info(unsigned long arg)
+static void print_daily_error_info(struct timer_list *t)
 {
-	struct super_block *sb = (struct super_block *) arg;
-	struct ext4_sb_info *sbi;
-	struct ext4_super_block *es;
-
-	sbi = EXT4_SB(sb);
-	es = sbi->s_es;
+	struct ext4_sb_info *sbi = from_timer(sbi, t, s_err_report);
+	struct super_block *sb = sbi->s_sb;
+	struct ext4_super_block *es = sbi->s_es;
 
 	if (es->s_error_count)
 		/* fsck newer than v1.41.13 is needed to clean this condition. */
@@ -3136,8 +3134,7 @@ int ext4_register_li_request(struct super_block *sb,
 		goto out;
 	}
 
-	if (first_not_zeroed == ngroups ||
-	    (sb->s_flags & MS_RDONLY) ||
+	if (first_not_zeroed == ngroups || sb_rdonly(sb) ||
 	    !test_opt(sb, INIT_INODE_TABLE))
 		goto out;
 
@@ -3683,7 +3680,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	 * previously didn't change the revision level when setting the flags,
 	 * so there is a chance incompat flags are set on a rev 0 filesystem.
 	 */
-	if (!ext4_feature_set_ok(sb, (sb->s_flags & MS_RDONLY)))
+	if (!ext4_feature_set_ok(sb, (sb_rdonly(sb))))
 		goto failed_mount;
 
 	blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
@@ -3710,6 +3707,11 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	if (sbi->s_mount_opt & EXT4_MOUNT_DAX) {
+		if (ext4_has_feature_inline_data(sb)) {
+			ext4_msg(sb, KERN_ERR, "Cannot use DAX on a filesystem"
+					" that may contain inline data");
+			goto failed_mount;
+		}
 		err = bdev_dax_supported(sb, blocksize);
 		if (err)
 			goto failed_mount;
@@ -3812,12 +3814,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 			sbi->s_hash_unsigned = 3;
 		else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) {
 #ifdef __CHAR_UNSIGNED__
-			if (!(sb->s_flags & MS_RDONLY))
+			if (!sb_rdonly(sb))
 				es->s_flags |=
 					cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH);
 			sbi->s_hash_unsigned = 3;
 #else
-			if (!(sb->s_flags & MS_RDONLY))
+			if (!sb_rdonly(sb))
 				es->s_flags |=
 					cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
 #endif
@@ -3979,11 +3981,8 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	sbi->s_gdb_count = db_count;
-	get_random_bytes(&sbi->s_next_generation, sizeof(u32));
-	spin_lock_init(&sbi->s_next_gen_lock);
 
-	setup_timer(&sbi->s_err_report, print_daily_error_info,
-		(unsigned long) sb);
+	timer_setup(&sbi->s_err_report, print_daily_error_info, 0);
 
 	/* Register extent status tree shrinker */
 	if (ext4_es_register_shrinker(sbi))
@@ -3998,7 +3997,9 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_op = &ext4_sops;
 	sb->s_export_op = &ext4_export_ops;
 	sb->s_xattr = ext4_xattr_handlers;
+#ifdef CONFIG_EXT4_FS_ENCRYPTION
 	sb->s_cop = &ext4_cryptops;
+#endif
 #ifdef CONFIG_QUOTA
 	sb->dq_op = &ext4_quota_operations;
 	if (ext4_has_feature_quota(sb))
@@ -4017,7 +4018,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	needs_recovery = (es->s_last_orphan != 0 ||
 			  ext4_has_feature_journal_needs_recovery(sb));
 
-	if (ext4_has_feature_mmp(sb) && !(sb->s_flags & MS_RDONLY))
+	if (ext4_has_feature_mmp(sb) && !sb_rdonly(sb))
 		if (ext4_multi_mount_protect(sb, le64_to_cpu(es->s_mmp_block)))
 			goto failed_mount3a;
 
@@ -4029,7 +4030,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 		err = ext4_load_journal(sb, es, journal_devnum);
 		if (err)
 			goto failed_mount3a;
-	} else if (test_opt(sb, NOLOAD) && !(sb->s_flags & MS_RDONLY) &&
+	} else if (test_opt(sb, NOLOAD) && !sb_rdonly(sb) &&
 		   ext4_has_feature_journal_needs_recovery(sb)) {
 		ext4_msg(sb, KERN_ERR, "required journal recovery "
 		       "suppressed and not mounted read-only");
@@ -4143,7 +4144,7 @@ no_journal:
 		goto failed_mount_wq;
 	}
 
-	if (DUMMY_ENCRYPTION_ENABLED(sbi) && !(sb->s_flags & MS_RDONLY) &&
+	if (DUMMY_ENCRYPTION_ENABLED(sbi) && !sb_rdonly(sb) &&
 	    !ext4_has_feature_encrypt(sb)) {
 		ext4_set_feature_encrypt(sb);
 		ext4_commit_super(sb, 1);
@@ -4197,7 +4198,7 @@ no_journal:
 		goto failed_mount4;
 	}
 
-	if (ext4_setup_super(sb, es, sb->s_flags & MS_RDONLY))
+	if (ext4_setup_super(sb, es, sb_rdonly(sb)))
 		sb->s_flags |= MS_RDONLY;
 
 	/* determine the minimum size of new large inodes, if present */
@@ -4285,7 +4286,7 @@ no_journal:
 
 #ifdef CONFIG_QUOTA
 	/* Enable quota usage during mount. */
-	if (ext4_has_feature_quota(sb) && !(sb->s_flags & MS_RDONLY)) {
+	if (ext4_has_feature_quota(sb) && !sb_rdonly(sb)) {
 		err = ext4_enable_quotas(sb);
 		if (err)
 			goto failed_mount8;
@@ -4609,12 +4610,13 @@ static int ext4_load_journal(struct super_block *sb,
 	 * can get read-write access to the device.
 	 */
 	if (ext4_has_feature_journal_needs_recovery(sb)) {
-		if (sb->s_flags & MS_RDONLY) {
+		if (sb_rdonly(sb)) {
 			ext4_msg(sb, KERN_INFO, "INFO: recovery "
 					"required on readonly filesystem");
 			if (really_read_only) {
 				ext4_msg(sb, KERN_ERR, "write access "
-					"unavailable, cannot proceed");
+					"unavailable, cannot proceed "
+					"(try mounting with noload)");
 				return -EROFS;
 			}
 			ext4_msg(sb, KERN_INFO, "write access will "
@@ -4764,8 +4766,7 @@ static void ext4_mark_recovery_complete(struct super_block *sb,
 	if (jbd2_journal_flush(journal) < 0)
 		goto out;
 
-	if (ext4_has_feature_journal_needs_recovery(sb) &&
-	    sb->s_flags & MS_RDONLY) {
+	if (ext4_has_feature_journal_needs_recovery(sb) && sb_rdonly(sb)) {
 		ext4_clear_feature_journal_needs_recovery(sb);
 		ext4_commit_super(sb, 1);
 	}
@@ -4821,7 +4822,7 @@ int ext4_force_commit(struct super_block *sb)
 {
 	journal_t *journal;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	journal = EXT4_SB(sb)->s_journal;
@@ -4886,7 +4887,7 @@ static int ext4_freeze(struct super_block *sb)
 	int error = 0;
 	journal_t *journal;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	journal = EXT4_SB(sb)->s_journal;
@@ -4921,7 +4922,7 @@ out:
  */
 static int ext4_unfreeze(struct super_block *sb)
 {
-	if ((sb->s_flags & MS_RDONLY) || ext4_forced_shutdown(EXT4_SB(sb)))
+	if (sb_rdonly(sb) || ext4_forced_shutdown(EXT4_SB(sb)))
 		return 0;
 
 	if (EXT4_SB(sb)->s_journal) {
@@ -5059,7 +5060,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 	if (*flags & MS_LAZYTIME)
 		sb->s_flags |= MS_LAZYTIME;
 
-	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
+	if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
 		if (sbi->s_mount_flags & EXT4_MF_FS_ABORTED) {
 			err = -EROFS;
 			goto restore_opts;
@@ -5154,7 +5155,7 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
 	 * Reinitialize lazy itable initialization thread based on
 	 * current settings
 	 */
-	if ((sb->s_flags & MS_RDONLY) || !test_opt(sb, INIT_INODE_TABLE))
+	if (sb_rdonly(sb) || !test_opt(sb, INIT_INODE_TABLE))
 		ext4_unregister_li_request(sb);
 	else {
 		ext4_group_t first_not_zeroed;
@@ -5731,7 +5732,7 @@ static inline int ext2_feature_set_ok(struct super_block *sb)
 {
 	if (ext4_has_unknown_ext2_incompat_features(sb))
 		return 0;
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 1;
 	if (ext4_has_unknown_ext2_ro_compat_features(sb))
 		return 0;
@@ -5762,7 +5763,7 @@ static inline int ext3_feature_set_ok(struct super_block *sb)
 		return 0;
 	if (!ext4_has_feature_journal(sb))
 		return 0;
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 1;
 	if (ext4_has_unknown_ext3_ro_compat_features(sb))
 		return 0;
diff --git a/fs/ext4/symlink.c b/fs/ext4/symlink.c
index 5c8fc53cb0e5..a2006c9af1d9 100644
--- a/fs/ext4/symlink.c
+++ b/fs/ext4/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/symlink.c
  *
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 48c7a7d55ed3..e21afd52e7d7 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ext4/sysfs.c
  *
diff --git a/fs/ext4/truncate.h b/fs/ext4/truncate.h
index c70d06a383e2..b64a9fa0ff41 100644
--- a/fs/ext4/truncate.h
+++ b/fs/ext4/truncate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/ext4/truncate.h
  *
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 3b69330a4250..218a7ba57819 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/xattr.c
  *
diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h
index 0d2dde1fa87a..f8cc07588ac9 100644
--- a/fs/ext4/xattr.h
+++ b/fs/ext4/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: fs/ext4/xattr.h
 
diff --git a/fs/ext4/xattr_security.c b/fs/ext4/xattr_security.c
index a8921112030d..629001b28632 100644
--- a/fs/ext4/xattr_security.c
+++ b/fs/ext4/xattr_security.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/xattr_security.c
  * Handler for storing security labels as extended attributes.
diff --git a/fs/ext4/xattr_trusted.c b/fs/ext4/xattr_trusted.c
index c7765c735714..e9389e5d75c3 100644
--- a/fs/ext4/xattr_trusted.c
+++ b/fs/ext4/xattr_trusted.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/xattr_trusted.c
  * Handler for trusted extended attributes.
diff --git a/fs/ext4/xattr_user.c b/fs/ext4/xattr_user.c
index ca20e423034b..d4546184b34b 100644
--- a/fs/ext4/xattr_user.c
+++ b/fs/ext4/xattr_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ext4/xattr_user.c
  * Handler for extended user attributes.
diff --git a/fs/f2fs/Makefile b/fs/f2fs/Makefile
index a0dc559b1b47..776c4b936504 100644
--- a/fs/f2fs/Makefile
+++ b/fs/f2fs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_F2FS_FS) += f2fs.o
 
 f2fs-y		:= dir.o file.o inode.o namei.o hash.o super.o inline.o
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 9a7c90386947..115204fdefcc 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -23,13 +23,11 @@
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 #include <linux/quotaops.h>
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
-#include <linux/fscrypt_supp.h>
-#else
-#include <linux/fscrypt_notsupp.h>
-#endif
 #include <crypto/hash.h>
 
+#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_F2FS_FS_ENCRYPTION)
+#include <linux/fscrypt.h>
+
 #ifdef CONFIG_F2FS_CHECK_FS
 #define f2fs_bug_on(sbi, condition)	BUG_ON(condition)
 #else
@@ -2525,7 +2523,7 @@ void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr);
 bool is_checkpointed_data(struct f2fs_sb_info *sbi, block_t blkaddr);
 void refresh_sit_entry(struct f2fs_sb_info *sbi, block_t old, block_t new);
 void stop_discard_thread(struct f2fs_sb_info *sbi);
-void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi);
+void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi, bool umount);
 void clear_prefree_segments(struct f2fs_sb_info *sbi, struct cp_control *cpc);
 void release_discard_addrs(struct f2fs_sb_info *sbi);
 int npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
@@ -2949,6 +2947,7 @@ static inline void f2fs_set_encrypted_inode(struct inode *inode)
 {
 #ifdef CONFIG_F2FS_FS_ENCRYPTION
 	file_set_encrypt(inode);
+	inode->i_flags |= S_ENCRYPTED;
 #endif
 }
 
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 50c88e37ed66..53fb08810ee9 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -43,8 +43,11 @@ void f2fs_set_inode_flags(struct inode *inode)
 		new_fl |= S_NOATIME;
 	if (flags & FS_DIRSYNC_FL)
 		new_fl |= S_DIRSYNC;
+	if (f2fs_encrypted_inode(inode))
+		new_fl |= S_ENCRYPTED;
 	inode_set_flags(inode, new_fl,
-			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
+			S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
+			S_ENCRYPTED);
 }
 
 static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 621b9b3d320b..c695ff462ee6 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1210,11 +1210,11 @@ void stop_discard_thread(struct f2fs_sb_info *sbi)
 }
 
 /* This comes from f2fs_put_super and f2fs_trim_fs */
-void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi)
+void f2fs_wait_discard_bios(struct f2fs_sb_info *sbi, bool umount)
 {
 	__issue_discard_cmd(sbi, false);
 	__drop_discard_cmd(sbi);
-	__wait_discard_cmd(sbi, false);
+	__wait_discard_cmd(sbi, !umount);
 }
 
 static void mark_discard_range_all(struct f2fs_sb_info *sbi)
@@ -2244,7 +2244,7 @@ int f2fs_trim_fs(struct f2fs_sb_info *sbi, struct fstrim_range *range)
 	}
 	/* It's time to issue all the filed discards */
 	mark_discard_range_all(sbi);
-	f2fs_wait_discard_bios(sbi);
+	f2fs_wait_discard_bios(sbi, false);
 out:
 	range->len = F2FS_BLK_TO_BYTES(cpc.trimmed);
 	return err;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 89f61eb3d167..97e03c637e90 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -801,7 +801,7 @@ static void f2fs_put_super(struct super_block *sb)
 	}
 
 	/* be sure to wait for any on-going discard commands */
-	f2fs_wait_discard_bios(sbi);
+	f2fs_wait_discard_bios(sbi, true);
 
 	if (f2fs_discard_en(sbi) && !sbi->discard_blks) {
 		struct cp_control cpc = {
@@ -1594,14 +1594,9 @@ static const struct fscrypt_operations f2fs_cryptops = {
 	.key_prefix	= "f2fs:",
 	.get_context	= f2fs_get_context,
 	.set_context	= f2fs_set_context,
-	.is_encrypted	= f2fs_encrypted_inode,
 	.empty_dir	= f2fs_empty_dir,
 	.max_namelen	= f2fs_max_namelen,
 };
-#else
-static const struct fscrypt_operations f2fs_cryptops = {
-	.is_encrypted	= f2fs_encrypted_inode,
-};
 #endif
 
 static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
@@ -2320,7 +2315,9 @@ try_onemore:
 #endif
 
 	sb->s_op = &f2fs_sops;
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
 	sb->s_cop = &f2fs_cryptops;
+#endif
 	sb->s_xattr = f2fs_xattr_handlers;
 	sb->s_export_op = &f2fs_export_ops;
 	sb->s_magic = F2FS_SUPER_MAGIC;
diff --git a/fs/fat/Makefile b/fs/fat/Makefile
index 964b634f6667..70645ce2f7fc 100644
--- a/fs/fat/Makefile
+++ b/fs/fat/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux fat filesystem support.
 #
diff --git a/fs/fat/cache.c b/fs/fat/cache.c
index 5d384921524d..e9bed49df6b7 100644
--- a/fs/fat/cache.c
+++ b/fs/fat/cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/fat/cache.c
  *
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 051dac1ce3be..8fc1093da47d 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FAT_H
 #define _FAT_H
 
diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c
index 1d9a8c4e9de0..48b2336692f9 100644
--- a/fs/fat/fatent.c
+++ b/fs/fat/fatent.c
@@ -309,7 +309,7 @@ static void mark_fsinfo_dirty(struct super_block *sb)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(sb);
 
-	if (sb->s_flags & MS_RDONLY || sbi->fat_bits != 32)
+	if (sb_rdonly(sb) || sbi->fat_bits != 32)
 		return;
 
 	__mark_inode_dirty(sbi->fsinfo_inode, I_DIRTY_SYNC);
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index a2c05f2ada6d..30c52394a7ad 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -657,7 +657,7 @@ static void fat_set_state(struct super_block *sb,
 	struct msdos_sb_info *sbi = MSDOS_SB(sb);
 
 	/* do not change any thing if mounted read only */
-	if ((sb->s_flags & MS_RDONLY) && !force)
+	if (sb_rdonly(sb) && !force)
 		return;
 
 	/* do not change state if fs was dirty */
@@ -787,7 +787,7 @@ static int fat_remount(struct super_block *sb, int *flags, char *data)
 
 	/* make sure we update state on remount. */
 	new_rdonly = *flags & MS_RDONLY;
-	if (new_rdonly != (sb->s_flags & MS_RDONLY)) {
+	if (new_rdonly != sb_rdonly(sb)) {
 		if (new_rdonly)
 			fat_set_state(sb, 0, 0);
 		else
diff --git a/fs/fat/misc.c b/fs/fat/misc.c
index 8a8698119ff7..acc3aa30ee54 100644
--- a/fs/fat/misc.c
+++ b/fs/fat/misc.c
@@ -32,7 +32,7 @@ void __fat_fs_error(struct super_block *sb, int report, const char *fmt, ...)
 
 	if (opts->errors == FAT_ERRORS_PANIC)
 		panic("FAT-fs (%s): fs panic from previous error\n", sb->s_id);
-	else if (opts->errors == FAT_ERRORS_RO && !(sb->s_flags & MS_RDONLY)) {
+	else if (opts->errors == FAT_ERRORS_RO && !sb_rdonly(sb)) {
 		sb->s_flags |= MS_RDONLY;
 		fat_msg(sb, KERN_ERR, "Filesystem has been set read-only");
 	}
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 0491da3b28c3..30f47d0f74a0 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/fcntl.c
  *
@@ -724,7 +725,7 @@ static void send_sigio_to_task(struct task_struct *p,
 	 * F_SETSIG can change ->signum lockless in parallel, make
 	 * sure we read it once and use the same value throughout.
 	 */
-	int signum = ACCESS_ONCE(fown->signum);
+	int signum = READ_ONCE(fown->signum);
 
 	if (!sigio_perm(p, fown, signum))
 		return;
@@ -749,7 +750,7 @@ static void send_sigio_to_task(struct task_struct *p,
 			 * specific si_codes.  In that case use SI_SIGIO instead
 			 * to remove the ambiguity.
 			 */
-			if (sig_specific_sicodes(signum))
+			if ((signum != SIGPOLL) && sig_specific_sicodes(signum))
 				si.si_code = SI_SIGIO;
 
 			/* Make sure we are called with one of the POLL_*
diff --git a/fs/fhandle.c b/fs/fhandle.c
index 58a61f55e0d0..474adc8d2a3a 100644
--- a/fs/fhandle.c
+++ b/fs/fhandle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/syscalls.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
diff --git a/fs/file.c b/fs/file.c
index 1fc7fbbb4510..4eecbf4244a5 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/file.c
  *
diff --git a/fs/file_table.c b/fs/file_table.c
index 72e861a35a7f..49e1f2f1a4cb 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -201,11 +201,11 @@ static void __fput(struct file *file)
 	eventpoll_release(file);
 	locks_remove_file(file);
 
+	ima_file_free(file);
 	if (unlikely(file->f_flags & FASYNC)) {
 		if (file->f_op->fasync)
 			file->f_op->fasync(-1, file, 0);
 	}
-	ima_file_free(file);
 	if (file->f_op->release)
 		file->f_op->release(inode, file);
 	security_file_free(file);
@@ -233,12 +233,10 @@ static LLIST_HEAD(delayed_fput_list);
 static void delayed_fput(struct work_struct *unused)
 {
 	struct llist_node *node = llist_del_all(&delayed_fput_list);
-	struct llist_node *next;
+	struct file *f, *t;
 
-	for (; node; node = next) {
-		next = llist_next(node);
-		__fput(llist_entry(node, struct file, f_u.fu_llist));
-	}
+	llist_for_each_entry_safe(f, t, node, f_u.fu_llist)
+		__fput(f);
 }
 
 static void ____fput(struct callback_head *work)
@@ -312,7 +310,7 @@ void put_filp(struct file *file)
 }
 
 void __init files_init(void)
-{ 
+{
 	filp_cachep = kmem_cache_create("filp", sizeof(struct file), 0,
 			SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL);
 	percpu_counter_init(&nr_files, 0, GFP_KERNEL);
@@ -331,4 +329,4 @@ void __init files_maxfiles_init(void)
 	n = ((totalram_pages - memreserve) * (PAGE_SIZE / 1024)) / 10;
 
 	files_stat.max_files = max_t(unsigned long, n, NR_FILE);
-} 
+}
diff --git a/fs/filesystems.c b/fs/filesystems.c
index a920ad2629ac..f2728a4a03a1 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/filesystems.c
  *
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 245c430a2e41..08f5debd07d1 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -933,33 +933,36 @@ static void bdi_split_work_to_wbs(struct backing_dev_info *bdi,
 
 #endif	/* CONFIG_CGROUP_WRITEBACK */
 
-void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
-			bool range_cyclic, enum wb_reason reason)
+/*
+ * Add in the number of potentially dirty inodes, because each inode
+ * write can dirty pagecache in the underlying blockdev.
+ */
+static unsigned long get_nr_dirty_pages(void)
 {
-	struct wb_writeback_work *work;
+	return global_node_page_state(NR_FILE_DIRTY) +
+		global_node_page_state(NR_UNSTABLE_NFS) +
+		get_nr_dirty_inodes();
+}
 
+static void wb_start_writeback(struct bdi_writeback *wb, enum wb_reason reason)
+{
 	if (!wb_has_dirty_io(wb))
 		return;
 
 	/*
-	 * This is WB_SYNC_NONE writeback, so if allocation fails just
-	 * wakeup the thread for old dirty data writeback
+	 * All callers of this function want to start writeback of all
+	 * dirty pages. Places like vmscan can call this at a very
+	 * high frequency, causing pointless allocations of tons of
+	 * work items and keeping the flusher threads busy retrieving
+	 * that work. Ensure that we only allow one of them pending and
+	 * inflight at the time.
 	 */
-	work = kzalloc(sizeof(*work),
-		       GFP_NOWAIT | __GFP_NOMEMALLOC | __GFP_NOWARN);
-	if (!work) {
-		trace_writeback_nowork(wb);
-		wb_wakeup(wb);
+	if (test_bit(WB_start_all, &wb->state) ||
+	    test_and_set_bit(WB_start_all, &wb->state))
 		return;
-	}
-
-	work->sync_mode	= WB_SYNC_NONE;
-	work->nr_pages	= nr_pages;
-	work->range_cyclic = range_cyclic;
-	work->reason	= reason;
-	work->auto_free	= 1;
 
-	wb_queue_work(wb, work);
+	wb->start_all_reason = reason;
+	wb_wakeup(wb);
 }
 
 /**
@@ -1814,17 +1817,6 @@ static struct wb_writeback_work *get_next_work_item(struct bdi_writeback *wb)
 	return work;
 }
 
-/*
- * Add in the number of potentially dirty inodes, because each inode
- * write can dirty pagecache in the underlying blockdev.
- */
-static unsigned long get_nr_dirty_pages(void)
-{
-	return global_node_page_state(NR_FILE_DIRTY) +
-		global_node_page_state(NR_UNSTABLE_NFS) +
-		get_nr_dirty_inodes();
-}
-
 static long wb_check_background_flush(struct bdi_writeback *wb)
 {
 	if (wb_over_bg_thresh(wb)) {
@@ -1877,6 +1869,30 @@ static long wb_check_old_data_flush(struct bdi_writeback *wb)
 	return 0;
 }
 
+static long wb_check_start_all(struct bdi_writeback *wb)
+{
+	long nr_pages;
+
+	if (!test_bit(WB_start_all, &wb->state))
+		return 0;
+
+	nr_pages = get_nr_dirty_pages();
+	if (nr_pages) {
+		struct wb_writeback_work work = {
+			.nr_pages	= wb_split_bdi_pages(wb, nr_pages),
+			.sync_mode	= WB_SYNC_NONE,
+			.range_cyclic	= 1,
+			.reason		= wb->start_all_reason,
+		};
+
+		nr_pages = wb_writeback(wb, &work);
+	}
+
+	clear_bit(WB_start_all, &wb->state);
+	return nr_pages;
+}
+
+
 /*
  * Retrieve work items and do the writeback they describe
  */
@@ -1893,6 +1909,11 @@ static long wb_do_writeback(struct bdi_writeback *wb)
 	}
 
 	/*
+	 * Check for a flush-everything request
+	 */
+	wrote += wb_check_start_all(wb);
+
+	/*
 	 * Check for periodic writeback, kupdated() style
 	 */
 	wrote += wb_check_old_data_flush(wb);
@@ -1947,10 +1968,33 @@ void wb_workfn(struct work_struct *work)
 }
 
 /*
- * Start writeback of `nr_pages' pages.  If `nr_pages' is zero, write back
- * the whole world.
+ * Start writeback of `nr_pages' pages on this bdi. If `nr_pages' is zero,
+ * write back the whole world.
  */
-void wakeup_flusher_threads(long nr_pages, enum wb_reason reason)
+static void __wakeup_flusher_threads_bdi(struct backing_dev_info *bdi,
+					 enum wb_reason reason)
+{
+	struct bdi_writeback *wb;
+
+	if (!bdi_has_dirty_io(bdi))
+		return;
+
+	list_for_each_entry_rcu(wb, &bdi->wb_list, bdi_node)
+		wb_start_writeback(wb, reason);
+}
+
+void wakeup_flusher_threads_bdi(struct backing_dev_info *bdi,
+				enum wb_reason reason)
+{
+	rcu_read_lock();
+	__wakeup_flusher_threads_bdi(bdi, reason);
+	rcu_read_unlock();
+}
+
+/*
+ * Wakeup the flusher threads to start writeback of all currently dirty pages
+ */
+void wakeup_flusher_threads(enum wb_reason reason)
 {
 	struct backing_dev_info *bdi;
 
@@ -1960,20 +2004,9 @@ void wakeup_flusher_threads(long nr_pages, enum wb_reason reason)
 	if (blk_needs_flush_plug(current))
 		blk_schedule_flush_plug(current);
 
-	if (!nr_pages)
-		nr_pages = get_nr_dirty_pages();
-
 	rcu_read_lock();
-	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list) {
-		struct bdi_writeback *wb;
-
-		if (!bdi_has_dirty_io(bdi))
-			continue;
-
-		list_for_each_entry_rcu(wb, &bdi->wb_list, bdi_node)
-			wb_start_writeback(wb, wb_split_bdi_pages(wb, nr_pages),
-					   false, reason);
-	}
+	list_for_each_entry_rcu(bdi, &bdi_list, bdi_list)
+		__wakeup_flusher_threads_bdi(bdi, reason);
 	rcu_read_unlock();
 }
 
@@ -2343,37 +2376,19 @@ void writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
 EXPORT_SYMBOL(writeback_inodes_sb);
 
 /**
- * try_to_writeback_inodes_sb_nr - try to start writeback if none underway
+ * try_to_writeback_inodes_sb - try to start writeback if none underway
  * @sb: the superblock
- * @nr: the number of pages to write
- * @reason: the reason of writeback
+ * @reason: reason why some writeback work was initiated
  *
- * Invoke writeback_inodes_sb_nr if no writeback is currently underway.
- * Returns 1 if writeback was started, 0 if not.
+ * Invoke __writeback_inodes_sb_nr if no writeback is currently underway.
  */
-bool try_to_writeback_inodes_sb_nr(struct super_block *sb, unsigned long nr,
-				   enum wb_reason reason)
+void try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
 {
 	if (!down_read_trylock(&sb->s_umount))
-		return false;
+		return;
 
-	__writeback_inodes_sb_nr(sb, nr, reason, true);
+	__writeback_inodes_sb_nr(sb, get_nr_dirty_pages(), reason, true);
 	up_read(&sb->s_umount);
-	return true;
-}
-EXPORT_SYMBOL(try_to_writeback_inodes_sb_nr);
-
-/**
- * try_to_writeback_inodes_sb - try to start writeback if none underway
- * @sb: the superblock
- * @reason: reason why some writeback work was initiated
- *
- * Implement by try_to_writeback_inodes_sb_nr()
- * Returns 1 if writeback was started, 0 if not.
- */
-bool try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason)
-{
-	return try_to_writeback_inodes_sb_nr(sb, get_nr_dirty_pages(), reason);
 }
 EXPORT_SYMBOL(try_to_writeback_inodes_sb);
 
diff --git a/fs/fs_pin.c b/fs/fs_pin.c
index e747b3d720ee..a6497cf8ae53 100644
--- a/fs/fs_pin.c
+++ b/fs/fs_pin.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -78,7 +79,7 @@ void mnt_pin_kill(struct mount *m)
 	while (1) {
 		struct hlist_node *p;
 		rcu_read_lock();
-		p = ACCESS_ONCE(m->mnt_pins.first);
+		p = READ_ONCE(m->mnt_pins.first);
 		if (!p) {
 			rcu_read_unlock();
 			break;
@@ -92,7 +93,7 @@ void group_pin_kill(struct hlist_head *p)
 	while (1) {
 		struct hlist_node *q;
 		rcu_read_lock();
-		q = ACCESS_ONCE(p->first);
+		q = READ_ONCE(p->first);
 		if (!q) {
 			rcu_read_unlock();
 			break;
diff --git a/fs/fscache/Makefile b/fs/fscache/Makefile
index 6d561531cb36..79e08e05ef84 100644
--- a/fs/fscache/Makefile
+++ b/fs/fscache/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for general filesystem caching code
 #
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
index 67f940892ef8..0438d4cd91ef 100644
--- a/fs/fscache/object-list.c
+++ b/fs/fscache/object-list.c
@@ -262,7 +262,8 @@ static int fscache_objlist_show(struct seq_file *m, void *v)
 			type = "DT";
 			break;
 		default:
-			sprintf(_type, "%02u", cookie->def->type);
+			snprintf(_type, sizeof(_type), "%02u",
+				 cookie->def->type);
 			type = _type;
 			break;
 		}
@@ -330,6 +331,13 @@ static void fscache_objlist_config(struct fscache_objlist_data *data)
 	rcu_read_lock();
 
 	confkey = user_key_payload_rcu(key);
+	if (!confkey) {
+		/* key was revoked */
+		rcu_read_unlock();
+		key_put(key);
+		goto no_config;
+	}
+
 	buf = confkey->data;
 
 	for (len = confkey->datalen - 1; len >= 0; len--) {
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c
index 13c65dd2d37d..a42d89371748 100644
--- a/fs/fuse/dev.c
+++ b/fs/fuse/dev.c
@@ -33,7 +33,7 @@ static struct fuse_dev *fuse_get_dev(struct file *file)
 	 * Lockless access is OK, because file->private data is set
 	 * once during mount and is valid until the file is released.
 	 */
-	return ACCESS_ONCE(file->private_data);
+	return READ_ONCE(file->private_data);
 }
 
 static void fuse_request_init(struct fuse_req *req, struct page **pages,
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 622081b97426..24967382a7b1 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1308,7 +1308,8 @@ static int parse_dirplusfile(char *buf, size_t nbytes, struct file *file,
 			*/
 			over = !dir_emit(ctx, dirent->name, dirent->namelen,
 				       dirent->ino, dirent->type);
-			ctx->pos = dirent->off;
+			if (!over)
+				ctx->pos = dirent->off;
 		}
 
 		buf += reclen;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 65c88379a3a1..94a745acaef8 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -1059,7 +1059,7 @@ static int fuse_fill_super(struct super_block *sb, void *data, int silent)
 	if (sb->s_flags & MS_MANDLOCK)
 		goto err;
 
-	sb->s_flags &= ~(MS_NOSEC | MS_I_VERSION);
+	sb->s_flags &= ~(MS_NOSEC | SB_I_VERSION);
 
 	if (!parse_fuse_opt(data, &d, is_bdev))
 		goto err;
diff --git a/fs/gfs2/Kconfig b/fs/gfs2/Kconfig
index 90c6a8faaecb..43c827a7cce5 100644
--- a/fs/gfs2/Kconfig
+++ b/fs/gfs2/Kconfig
@@ -4,6 +4,7 @@ config GFS2_FS
 	select FS_POSIX_ACL
 	select CRC32
 	select QUOTACTL
+	select FS_IOMAP
 	help
 	  A cluster filesystem.
 
diff --git a/fs/gfs2/Makefile b/fs/gfs2/Makefile
index 86128202384f..41b2aa4bc3bf 100644
--- a/fs/gfs2/Makefile
+++ b/fs/gfs2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -I$(src)
 obj-$(CONFIG_GFS2_FS) += gfs2.o
 gfs2-y := acl.o bmap.o dir.o xattr.o glock.o \
diff --git a/fs/gfs2/acl.c b/fs/gfs2/acl.c
index 9d5eecb123de..776717f1eeea 100644
--- a/fs/gfs2/acl.c
+++ b/fs/gfs2/acl.c
@@ -141,6 +141,7 @@ int gfs2_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 
 	ret = __gfs2_set_acl(inode, acl, type);
 	if (!ret && mode != inode->i_mode) {
+		inode->i_ctime = current_time(inode);
 		inode->i_mode = mode;
 		mark_inode_dirty(inode);
 	}
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 3dd0cceefa43..d5f0d96169c5 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -13,6 +13,7 @@
 #include <linux/blkdev.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
+#include <linux/iomap.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -36,6 +37,8 @@
 struct metapath {
 	struct buffer_head *mp_bh[GFS2_MAX_META_HEIGHT];
 	__u16 mp_list[GFS2_MAX_META_HEIGHT];
+	int mp_fheight; /* find_metapath height */
+	int mp_aheight; /* actual height (lookup height) */
 };
 
 /**
@@ -235,9 +238,9 @@ static void find_metapath(const struct gfs2_sbd *sdp, u64 block,
 {
 	unsigned int i;
 
+	mp->mp_fheight = height;
 	for (i = height; i--;)
 		mp->mp_list[i] = do_div(block, sdp->sd_inptrs);
-
 }
 
 static inline unsigned int metapath_branch_start(const struct metapath *mp)
@@ -248,7 +251,7 @@ static inline unsigned int metapath_branch_start(const struct metapath *mp)
 }
 
 /**
- * metaptr1 - Return the first possible metadata pointer in a metaath buffer
+ * metaptr1 - Return the first possible metadata pointer in a metapath buffer
  * @height: The metadata height (0 = dinode)
  * @mp: The metapath
  */
@@ -345,10 +348,13 @@ static int lookup_metapath(struct gfs2_inode *ip, struct metapath *mp)
 	for (x = 0; x < end_of_metadata; x++) {
 		ret = lookup_mp_height(ip, mp, x);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
-	return ip->i_height;
+	ret = ip->i_height;
+out:
+	mp->mp_aheight = ret;
+	return ret;
 }
 
 /**
@@ -480,10 +486,11 @@ static inline unsigned int hptrs(struct gfs2_sbd *sdp, const unsigned int hgt)
  * @inode: The GFS2 inode
  * @lblock: The logical starting block of the extent
  * @bh_map: This is used to return the mapping details
- * @mp: The metapath
- * @sheight: The starting height (i.e. whats already mapped)
- * @height: The height to build to
+ * @zero_new: True if newly allocated blocks should be zeroed
+ * @mp: The metapath, with proper height information calculated
  * @maxlen: The max number of data blocks to alloc
+ * @dblock: Pointer to return the resulting new block
+ * @dblks: Pointer to return the number of blocks allocated
  *
  * In this routine we may have to alloc:
  *   i) Indirect blocks to grow the metadata tree height
@@ -499,63 +506,63 @@ static inline unsigned int hptrs(struct gfs2_sbd *sdp, const unsigned int hgt)
  * Returns: errno on error
  */
 
-static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
-			   struct buffer_head *bh_map, struct metapath *mp,
-			   const unsigned int sheight,
-			   const unsigned int height,
-			   const size_t maxlen)
+static int gfs2_iomap_alloc(struct inode *inode, struct iomap *iomap,
+			    unsigned flags, struct metapath *mp)
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct super_block *sb = sdp->sd_vfs;
 	struct buffer_head *dibh = mp->mp_bh[0];
-	u64 bn, dblock = 0;
+	u64 bn;
 	unsigned n, i, blks, alloced = 0, iblks = 0, branch_start = 0;
 	unsigned dblks = 0;
 	unsigned ptrs_per_blk;
-	const unsigned end_of_metadata = height - 1;
+	const unsigned end_of_metadata = mp->mp_fheight - 1;
 	int ret;
-	int eob = 0;
 	enum alloc_state state;
 	__be64 *ptr;
 	__be64 zero_bn = 0;
+	size_t maxlen = iomap->length >> inode->i_blkbits;
 
-	BUG_ON(sheight < 1);
+	BUG_ON(mp->mp_aheight < 1);
 	BUG_ON(dibh == NULL);
 
 	gfs2_trans_add_meta(ip->i_gl, dibh);
 
-	if (height == sheight) {
+	if (mp->mp_fheight == mp->mp_aheight) {
 		struct buffer_head *bh;
+		int eob;
+
 		/* Bottom indirect block exists, find unalloced extent size */
 		ptr = metapointer(end_of_metadata, mp);
 		bh = mp->mp_bh[end_of_metadata];
-		dblks = gfs2_extent_length(bh->b_data, bh->b_size, ptr, maxlen,
-					   &eob);
+		dblks = gfs2_extent_length(bh->b_data, bh->b_size, ptr,
+					   maxlen, &eob);
 		BUG_ON(dblks < 1);
 		state = ALLOC_DATA;
 	} else {
 		/* Need to allocate indirect blocks */
-		ptrs_per_blk = height > 1 ? sdp->sd_inptrs : sdp->sd_diptrs;
+		ptrs_per_blk = mp->mp_fheight > 1 ? sdp->sd_inptrs :
+			sdp->sd_diptrs;
 		dblks = min(maxlen, (size_t)(ptrs_per_blk -
 					     mp->mp_list[end_of_metadata]));
-		if (height == ip->i_height) {
+		if (mp->mp_fheight == ip->i_height) {
 			/* Writing into existing tree, extend tree down */
-			iblks = height - sheight;
+			iblks = mp->mp_fheight - mp->mp_aheight;
 			state = ALLOC_GROW_DEPTH;
 		} else {
 			/* Building up tree height */
 			state = ALLOC_GROW_HEIGHT;
-			iblks = height - ip->i_height;
+			iblks = mp->mp_fheight - ip->i_height;
 			branch_start = metapath_branch_start(mp);
-			iblks += (height - branch_start);
+			iblks += (mp->mp_fheight - branch_start);
 		}
 	}
 
 	/* start of the second part of the function (state machine) */
 
 	blks = dblks + iblks;
-	i = sheight;
+	i = mp->mp_aheight;
 	do {
 		int error;
 		n = blks - alloced;
@@ -573,9 +580,10 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
 						 sizeof(struct gfs2_dinode));
 				zero_bn = *ptr;
 			}
-			for (; i - 1 < height - ip->i_height && n > 0; i++, n--)
+			for (; i - 1 < mp->mp_fheight - ip->i_height && n > 0;
+			     i++, n--)
 				gfs2_indirect_init(mp, ip->i_gl, i, 0, bn++);
-			if (i - 1 == height - ip->i_height) {
+			if (i - 1 == mp->mp_fheight - ip->i_height) {
 				i--;
 				gfs2_buffer_copy_tail(mp->mp_bh[i],
 						sizeof(struct gfs2_meta_header),
@@ -587,7 +595,7 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
 					sizeof(struct gfs2_meta_header));
 				*ptr = zero_bn;
 				state = ALLOC_GROW_DEPTH;
-				for(i = branch_start; i < height; i++) {
+				for(i = branch_start; i < mp->mp_fheight; i++) {
 					if (mp->mp_bh[i] == NULL)
 						break;
 					brelse(mp->mp_bh[i]);
@@ -599,12 +607,12 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
 				break;
 		/* Branching from existing tree */
 		case ALLOC_GROW_DEPTH:
-			if (i > 1 && i < height)
+			if (i > 1 && i < mp->mp_fheight)
 				gfs2_trans_add_meta(ip->i_gl, mp->mp_bh[i-1]);
-			for (; i < height && n > 0; i++, n--)
+			for (; i < mp->mp_fheight && n > 0; i++, n--)
 				gfs2_indirect_init(mp, ip->i_gl, i,
 						   mp->mp_list[i-1], bn++);
-			if (i == height)
+			if (i == mp->mp_fheight)
 				state = ALLOC_DATA;
 			if (n == 0)
 				break;
@@ -615,119 +623,269 @@ static int gfs2_bmap_alloc(struct inode *inode, const sector_t lblock,
 			gfs2_trans_add_meta(ip->i_gl, mp->mp_bh[end_of_metadata]);
 			dblks = n;
 			ptr = metapointer(end_of_metadata, mp);
-			dblock = bn;
+			iomap->addr = bn << inode->i_blkbits;
+			iomap->flags |= IOMAP_F_NEW;
 			while (n-- > 0)
 				*ptr++ = cpu_to_be64(bn++);
-			if (buffer_zeronew(bh_map)) {
-				ret = sb_issue_zeroout(sb, dblock, dblks,
-						       GFP_NOFS);
+			if (flags & IOMAP_ZERO) {
+				ret = sb_issue_zeroout(sb, iomap->addr >> inode->i_blkbits,
+						       dblks, GFP_NOFS);
 				if (ret) {
 					fs_err(sdp,
 					       "Failed to zero data buffers\n");
-					clear_buffer_zeronew(bh_map);
+					flags &= ~IOMAP_ZERO;
 				}
 			}
 			break;
 		}
-	} while ((state != ALLOC_DATA) || !dblock);
+	} while (iomap->addr == IOMAP_NULL_ADDR);
 
-	ip->i_height = height;
+	iomap->length = (u64)dblks << inode->i_blkbits;
+	ip->i_height = mp->mp_fheight;
 	gfs2_add_inode_blocks(&ip->i_inode, alloced);
 	gfs2_dinode_out(ip, mp->mp_bh[0]->b_data);
-	map_bh(bh_map, inode->i_sb, dblock);
-	bh_map->b_size = dblks << inode->i_blkbits;
-	set_buffer_new(bh_map);
 	return 0;
 }
 
 /**
- * gfs2_block_map - Map a block from an inode to a disk block
+ * hole_size - figure out the size of a hole
  * @inode: The inode
- * @lblock: The logical block number
- * @bh_map: The bh to be mapped
- * @create: True if its ok to alloc blocks to satify the request
+ * @lblock: The logical starting block number
+ * @mp: The metapath
  *
- * Sets buffer_mapped() if successful, sets buffer_boundary() if a
- * read of metadata will be required before the next block can be
- * mapped. Sets buffer_new() if new blocks were allocated.
+ * Returns: The hole size in bytes
  *
- * Returns: errno
  */
+static u64 hole_size(struct inode *inode, sector_t lblock, struct metapath *mp)
+{
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_sbd *sdp = GFS2_SB(inode);
+	struct metapath mp_eof;
+	u64 factor = 1;
+	int hgt;
+	u64 holesz = 0;
+	const __be64 *first, *end, *ptr;
+	const struct buffer_head *bh;
+	u64 lblock_stop = (i_size_read(inode) - 1) >> inode->i_blkbits;
+	int zeroptrs;
+	bool done = false;
+
+	/* Get another metapath, to the very last byte */
+	find_metapath(sdp, lblock_stop, &mp_eof, ip->i_height);
+	for (hgt = ip->i_height - 1; hgt >= 0 && !done; hgt--) {
+		bh = mp->mp_bh[hgt];
+		if (bh) {
+			zeroptrs = 0;
+			first = metapointer(hgt, mp);
+			end = (const __be64 *)(bh->b_data + bh->b_size);
+
+			for (ptr = first; ptr < end; ptr++) {
+				if (*ptr) {
+					done = true;
+					break;
+				} else {
+					zeroptrs++;
+				}
+			}
+		} else {
+			zeroptrs = sdp->sd_inptrs;
+		}
+		if (factor * zeroptrs >= lblock_stop - lblock + 1) {
+			holesz = lblock_stop - lblock + 1;
+			break;
+		}
+		holesz += factor * zeroptrs;
 
-int gfs2_block_map(struct inode *inode, sector_t lblock,
-		   struct buffer_head *bh_map, int create)
+		factor *= sdp->sd_inptrs;
+		if (hgt && (mp->mp_list[hgt - 1] < mp_eof.mp_list[hgt - 1]))
+			(mp->mp_list[hgt - 1])++;
+	}
+	return holesz << inode->i_blkbits;
+}
+
+static void gfs2_stuffed_iomap(struct inode *inode, struct iomap *iomap)
+{
+	struct gfs2_inode *ip = GFS2_I(inode);
+
+	iomap->addr = (ip->i_no_addr << inode->i_blkbits) +
+		      sizeof(struct gfs2_dinode);
+	iomap->offset = 0;
+	iomap->length = i_size_read(inode);
+	iomap->type = IOMAP_MAPPED;
+	iomap->flags = IOMAP_F_DATA_INLINE;
+}
+
+/**
+ * gfs2_iomap_begin - Map blocks from an inode to disk blocks
+ * @inode: The inode
+ * @pos: Starting position in bytes
+ * @length: Length to map, in bytes
+ * @flags: iomap flags
+ * @iomap: The iomap structure
+ *
+ * Returns: errno
+ */
+int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
+		     unsigned flags, struct iomap *iomap)
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
-	unsigned int bsize = sdp->sd_sb.sb_bsize;
-	const size_t maxlen = bh_map->b_size >> inode->i_blkbits;
+	struct metapath mp = { .mp_aheight = 1, };
+	unsigned int factor = sdp->sd_sb.sb_bsize;
 	const u64 *arr = sdp->sd_heightsize;
 	__be64 *ptr;
-	u64 size;
-	struct metapath mp;
+	sector_t lblock;
+	sector_t lend;
 	int ret;
 	int eob;
 	unsigned int len;
 	struct buffer_head *bh;
 	u8 height;
 
-	BUG_ON(maxlen == 0);
+	trace_gfs2_iomap_start(ip, pos, length, flags);
+	if (!length) {
+		ret = -EINVAL;
+		goto out;
+	}
 
-	memset(&mp, 0, sizeof(mp));
-	bmap_lock(ip, create);
-	clear_buffer_mapped(bh_map);
-	clear_buffer_new(bh_map);
-	clear_buffer_boundary(bh_map);
-	trace_gfs2_bmap(ip, bh_map, lblock, create, 1);
+	if ((flags & IOMAP_REPORT) && gfs2_is_stuffed(ip)) {
+		gfs2_stuffed_iomap(inode, iomap);
+		if (pos >= iomap->length)
+			return -ENOENT;
+		ret = 0;
+		goto out;
+	}
+
+	lblock = pos >> inode->i_blkbits;
+	lend = (pos + length + sdp->sd_sb.sb_bsize - 1) >> inode->i_blkbits;
+
+	iomap->offset = lblock << inode->i_blkbits;
+	iomap->addr = IOMAP_NULL_ADDR;
+	iomap->type = IOMAP_HOLE;
+	iomap->length = (u64)(lend - lblock) << inode->i_blkbits;
+	iomap->flags = IOMAP_F_MERGED;
+	bmap_lock(ip, 0);
+
+	/*
+	 * Directory data blocks have a struct gfs2_meta_header header, so the
+	 * remaining size is smaller than the filesystem block size.  Logical
+	 * block numbers for directories are in units of this remaining size!
+	 */
 	if (gfs2_is_dir(ip)) {
-		bsize = sdp->sd_jbsize;
+		factor = sdp->sd_jbsize;
 		arr = sdp->sd_jheightsize;
 	}
 
 	ret = gfs2_meta_inode_buffer(ip, &mp.mp_bh[0]);
 	if (ret)
-		goto out;
+		goto out_release;
 
 	height = ip->i_height;
-	size = (lblock + 1) * bsize;
-	while (size > arr[height])
+	while ((lblock + 1) * factor > arr[height])
 		height++;
 	find_metapath(sdp, lblock, &mp, height);
-	ret = 1;
 	if (height > ip->i_height || gfs2_is_stuffed(ip))
 		goto do_alloc;
+
 	ret = lookup_metapath(ip, &mp);
 	if (ret < 0)
-		goto out;
-	if (ret != ip->i_height)
+		goto out_release;
+
+	if (mp.mp_aheight != ip->i_height)
 		goto do_alloc;
+
 	ptr = metapointer(ip->i_height - 1, &mp);
 	if (*ptr == 0)
 		goto do_alloc;
-	map_bh(bh_map, inode->i_sb, be64_to_cpu(*ptr));
+
+	iomap->type = IOMAP_MAPPED;
+	iomap->addr = be64_to_cpu(*ptr) << inode->i_blkbits;
+
 	bh = mp.mp_bh[ip->i_height - 1];
-	len = gfs2_extent_length(bh->b_data, bh->b_size, ptr, maxlen, &eob);
-	bh_map->b_size = (len << inode->i_blkbits);
+	len = gfs2_extent_length(bh->b_data, bh->b_size, ptr, lend - lblock, &eob);
 	if (eob)
-		set_buffer_boundary(bh_map);
+		iomap->flags |= IOMAP_F_BOUNDARY;
+	iomap->length = (u64)len << inode->i_blkbits;
+
 	ret = 0;
-out:
+
+out_release:
 	release_metapath(&mp);
-	trace_gfs2_bmap(ip, bh_map, lblock, create, ret);
-	bmap_unlock(ip, create);
+	bmap_unlock(ip, 0);
+out:
+	trace_gfs2_iomap_end(ip, iomap, ret);
 	return ret;
 
 do_alloc:
-	/* All allocations are done here, firstly check create flag */
-	if (!create) {
-		BUG_ON(gfs2_is_stuffed(ip));
+	if (!(flags & IOMAP_WRITE)) {
+		if (pos >= i_size_read(inode)) {
+			ret = -ENOENT;
+			goto out_release;
+		}
 		ret = 0;
+		iomap->length = hole_size(inode, lblock, &mp);
+		goto out_release;
+	}
+
+	ret = gfs2_iomap_alloc(inode, iomap, flags, &mp);
+	goto out_release;
+}
+
+/**
+ * gfs2_block_map - Map a block from an inode to a disk block
+ * @inode: The inode
+ * @lblock: The logical block number
+ * @bh_map: The bh to be mapped
+ * @create: True if its ok to alloc blocks to satify the request
+ *
+ * Sets buffer_mapped() if successful, sets buffer_boundary() if a
+ * read of metadata will be required before the next block can be
+ * mapped. Sets buffer_new() if new blocks were allocated.
+ *
+ * Returns: errno
+ */
+
+int gfs2_block_map(struct inode *inode, sector_t lblock,
+		   struct buffer_head *bh_map, int create)
+{
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct iomap iomap;
+	int ret, flags = 0;
+
+	clear_buffer_mapped(bh_map);
+	clear_buffer_new(bh_map);
+	clear_buffer_boundary(bh_map);
+	trace_gfs2_bmap(ip, bh_map, lblock, create, 1);
+
+	if (create)
+		flags |= IOMAP_WRITE;
+	if (buffer_zeronew(bh_map))
+		flags |= IOMAP_ZERO;
+	ret = gfs2_iomap_begin(inode, (loff_t)lblock << inode->i_blkbits,
+			       bh_map->b_size, flags, &iomap);
+	if (ret) {
+		if (!create && ret == -ENOENT) {
+			/* Return unmapped buffer beyond the end of file.  */
+			ret = 0;
+		}
 		goto out;
 	}
 
-	/* At this point ret is the tree depth of already allocated blocks */
-	ret = gfs2_bmap_alloc(inode, lblock, bh_map, &mp, ret, height, maxlen);
-	goto out;
+	if (iomap.length > bh_map->b_size) {
+		iomap.length = bh_map->b_size;
+		iomap.flags &= ~IOMAP_F_BOUNDARY;
+	}
+	if (iomap.addr != IOMAP_NULL_ADDR)
+		map_bh(bh_map, inode->i_sb, iomap.addr >> inode->i_blkbits);
+	bh_map->b_size = iomap.length;
+	if (iomap.flags & IOMAP_F_BOUNDARY)
+		set_buffer_boundary(bh_map);
+	if (iomap.flags & IOMAP_F_NEW)
+		set_buffer_new(bh_map);
+
+out:
+	trace_gfs2_bmap(ip, bh_map, lblock, create, ret);
+	return ret;
 }
 
 /*
diff --git a/fs/gfs2/bmap.h b/fs/gfs2/bmap.h
index 81ded5e2aaa2..443cc182cf18 100644
--- a/fs/gfs2/bmap.h
+++ b/fs/gfs2/bmap.h
@@ -10,6 +10,8 @@
 #ifndef __BMAP_DOT_H__
 #define __BMAP_DOT_H__
 
+#include <linux/iomap.h>
+
 #include "inode.h"
 
 struct inode;
@@ -47,6 +49,8 @@ static inline void gfs2_write_calc_reserv(const struct gfs2_inode *ip,
 extern int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
 extern int gfs2_block_map(struct inode *inode, sector_t lblock,
 			  struct buffer_head *bh, int create);
+extern int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
+			    unsigned flags, struct iomap *iomap);
 extern int gfs2_extent_map(struct inode *inode, u64 lblock, int *new,
 			   u64 *dblock, unsigned *extlen);
 extern int gfs2_setattr_size(struct inode *inode, u64 size);
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 33a0cb5701a3..58705ef8643a 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -60,9 +60,7 @@ static loff_t gfs2_llseek(struct file *file, loff_t offset, int whence)
 	loff_t error;
 
 	switch (whence) {
-	case SEEK_END: /* These reference inode->i_size */
-	case SEEK_DATA:
-	case SEEK_HOLE:
+	case SEEK_END:
 		error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY,
 					   &i_gh);
 		if (!error) {
@@ -70,8 +68,21 @@ static loff_t gfs2_llseek(struct file *file, loff_t offset, int whence)
 			gfs2_glock_dq_uninit(&i_gh);
 		}
 		break;
+
+	case SEEK_DATA:
+		error = gfs2_seek_data(file, offset);
+		break;
+
+	case SEEK_HOLE:
+		error = gfs2_seek_hole(file, offset);
+		break;
+
 	case SEEK_CUR:
 	case SEEK_SET:
+		/*
+		 * These don't reference inode->i_size and don't depend on the
+		 * block mapping, so we don't need the glock.
+		 */
 		error = generic_file_llseek(file, offset, whence);
 		break;
 	default:
@@ -108,45 +119,22 @@ static int gfs2_readdir(struct file *file, struct dir_context *ctx)
 }
 
 /**
- * fsflags_cvt
- * @table: A table of 32 u32 flags
- * @val: a 32 bit value to convert
- *
- * This function can be used to convert between fsflags values and
- * GFS2's own flags values.
+ * fsflag_gfs2flag
  *
- * Returns: the converted flags
+ * The FS_JOURNAL_DATA_FL flag maps to GFS2_DIF_INHERIT_JDATA for directories,
+ * and to GFS2_DIF_JDATA for non-directories.
  */
-static u32 fsflags_cvt(const u32 *table, u32 val)
-{
-	u32 res = 0;
-	while(val) {
-		if (val & 1)
-			res |= *table;
-		table++;
-		val >>= 1;
-	}
-	return res;
-}
-
-static const u32 fsflags_to_gfs2[32] = {
-	[3] = GFS2_DIF_SYNC,
-	[4] = GFS2_DIF_IMMUTABLE,
-	[5] = GFS2_DIF_APPENDONLY,
-	[7] = GFS2_DIF_NOATIME,
-	[12] = GFS2_DIF_EXHASH,
-	[14] = GFS2_DIF_INHERIT_JDATA,
-	[17] = GFS2_DIF_TOPDIR,
-};
-
-static const u32 gfs2_to_fsflags[32] = {
-	[gfs2fl_Sync] = FS_SYNC_FL,
-	[gfs2fl_Immutable] = FS_IMMUTABLE_FL,
-	[gfs2fl_AppendOnly] = FS_APPEND_FL,
-	[gfs2fl_NoAtime] = FS_NOATIME_FL,
-	[gfs2fl_ExHash] = FS_INDEX_FL,
-	[gfs2fl_TopLevel] = FS_TOPDIR_FL,
-	[gfs2fl_InheritJdata] = FS_JOURNAL_DATA_FL,
+static struct {
+	u32 fsflag;
+	u32 gfsflag;
+} fsflag_gfs2flag[] = {
+	{FS_SYNC_FL, GFS2_DIF_SYNC},
+	{FS_IMMUTABLE_FL, GFS2_DIF_IMMUTABLE},
+	{FS_APPEND_FL, GFS2_DIF_APPENDONLY},
+	{FS_NOATIME_FL, GFS2_DIF_NOATIME},
+	{FS_INDEX_FL, GFS2_DIF_EXHASH},
+	{FS_TOPDIR_FL, GFS2_DIF_TOPDIR},
+	{FS_JOURNAL_DATA_FL, GFS2_DIF_JDATA | GFS2_DIF_INHERIT_JDATA},
 };
 
 static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
@@ -154,17 +142,23 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
 	struct inode *inode = file_inode(filp);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_holder gh;
-	int error;
-	u32 fsflags;
+	int i, error;
+	u32 gfsflags, fsflags = 0;
 
 	gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
 	error = gfs2_glock_nq(&gh);
 	if (error)
 		goto out_uninit;
 
-	fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_diskflags);
-	if (!S_ISDIR(inode->i_mode) && ip->i_diskflags & GFS2_DIF_JDATA)
-		fsflags |= FS_JOURNAL_DATA_FL;
+	gfsflags = ip->i_diskflags;
+	if (S_ISDIR(inode->i_mode))
+		gfsflags &= ~GFS2_DIF_JDATA;
+	else
+		gfsflags &= ~GFS2_DIF_INHERIT_JDATA;
+	for (i = 0; i < ARRAY_SIZE(fsflag_gfs2flag); i++)
+		if (gfsflags & fsflag_gfs2flag[i].gfsflag)
+			fsflags |= fsflag_gfs2flag[i].fsflag;
+
 	if (put_user(fsflags, ptr))
 		error = -EFAULT;
 
@@ -199,7 +193,6 @@ void gfs2_set_inode_flags(struct inode *inode)
 			     GFS2_DIF_APPENDONLY|		\
 			     GFS2_DIF_NOATIME|			\
 			     GFS2_DIF_SYNC|			\
-			     GFS2_DIF_SYSTEM|			\
 			     GFS2_DIF_TOPDIR|			\
 			     GFS2_DIF_INHERIT_JDATA)
 
@@ -238,10 +231,6 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 	if ((new_flags ^ flags) == 0)
 		goto out;
 
-	error = -EINVAL;
-	if ((new_flags ^ flags) & ~GFS2_FLAGS_USER_SET)
-		goto out;
-
 	error = -EPERM;
 	if (IS_IMMUTABLE(inode) && (new_flags & GFS2_DIF_IMMUTABLE))
 		goto out;
@@ -256,7 +245,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 			goto out;
 	}
 	if ((flags ^ new_flags) & GFS2_DIF_JDATA) {
-		if (flags & GFS2_DIF_JDATA)
+		if (new_flags & GFS2_DIF_JDATA)
 			gfs2_log_flush(sdp, ip->i_gl, NORMAL_FLUSH);
 		error = filemap_fdatawrite(inode->i_mapping);
 		if (error)
@@ -264,6 +253,8 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 		error = filemap_fdatawait(inode->i_mapping);
 		if (error)
 			goto out;
+		if (new_flags & GFS2_DIF_JDATA)
+			gfs2_ordered_del_inode(ip);
 	}
 	error = gfs2_trans_begin(sdp, RES_DINODE, 0);
 	if (error)
@@ -271,6 +262,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
 	error = gfs2_meta_inode_buffer(ip, &bh);
 	if (error)
 		goto out_trans_end;
+	inode->i_ctime = current_time(inode);
 	gfs2_trans_add_meta(ip->i_gl, bh);
 	ip->i_diskflags = new_flags;
 	gfs2_dinode_out(ip, bh->b_data);
@@ -289,19 +281,33 @@ out_drop_write:
 static int gfs2_set_flags(struct file *filp, u32 __user *ptr)
 {
 	struct inode *inode = file_inode(filp);
-	u32 fsflags, gfsflags;
+	u32 fsflags, gfsflags = 0;
+	u32 mask;
+	int i;
 
 	if (get_user(fsflags, ptr))
 		return -EFAULT;
 
-	gfsflags = fsflags_cvt(fsflags_to_gfs2, fsflags);
-	if (!S_ISDIR(inode->i_mode)) {
-		gfsflags &= ~GFS2_DIF_TOPDIR;
-		if (gfsflags & GFS2_DIF_INHERIT_JDATA)
-			gfsflags ^= (GFS2_DIF_JDATA | GFS2_DIF_INHERIT_JDATA);
-		return do_gfs2_set_flags(filp, gfsflags, ~GFS2_DIF_SYSTEM);
+	for (i = 0; i < ARRAY_SIZE(fsflag_gfs2flag); i++) {
+		if (fsflags & fsflag_gfs2flag[i].fsflag) {
+			fsflags &= ~fsflag_gfs2flag[i].fsflag;
+			gfsflags |= fsflag_gfs2flag[i].gfsflag;
+		}
+	}
+	if (fsflags || gfsflags & ~GFS2_FLAGS_USER_SET)
+		return -EINVAL;
+
+	mask = GFS2_FLAGS_USER_SET;
+	if (S_ISDIR(inode->i_mode)) {
+		mask &= ~GFS2_DIF_JDATA;
+	} else {
+		/* The GFS2_DIF_TOPDIR flag is only valid for directories. */
+		if (gfsflags & GFS2_DIF_TOPDIR)
+			return -EINVAL;
+		mask &= ~(GFS2_DIF_TOPDIR | GFS2_DIF_INHERIT_JDATA);
 	}
-	return do_gfs2_set_flags(filp, gfsflags, ~(GFS2_DIF_SYSTEM | GFS2_DIF_JDATA));
+
+	return do_gfs2_set_flags(filp, gfsflags, mask);
 }
 
 static long gfs2_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 98e845b7841b..11066d8647d2 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1945,13 +1945,9 @@ static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)
 {
 	struct gfs2_glock_iter *gi = seq->private;
 	loff_t n = *pos;
-	int ret;
-
-	if (gi->last_pos <= *pos)
-		n = (*pos - gi->last_pos);
 
-	ret = rhashtable_walk_start(&gi->hti);
-	if (ret)
+	rhashtable_walk_enter(&gl_hash_table, &gi->hti);
+	if (rhashtable_walk_start(&gi->hti) != 0)
 		return NULL;
 
 	do {
@@ -1959,6 +1955,7 @@ static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)
 	} while (gi->gl && n--);
 
 	gi->last_pos = *pos;
+
 	return gi->gl;
 }
 
@@ -1970,6 +1967,7 @@ static void *gfs2_glock_seq_next(struct seq_file *seq, void *iter_ptr,
 	(*pos)++;
 	gi->last_pos = *pos;
 	gfs2_glock_iter_next(gi);
+
 	return gi->gl;
 }
 
@@ -1980,6 +1978,7 @@ static void gfs2_glock_seq_stop(struct seq_file *seq, void *iter_ptr)
 
 	gi->gl = NULL;
 	rhashtable_walk_stop(&gi->hti);
+	rhashtable_walk_exit(&gi->hti);
 }
 
 static int gfs2_glock_seq_show(struct seq_file *seq, void *iter_ptr)
@@ -2042,12 +2041,10 @@ static int __gfs2_glocks_open(struct inode *inode, struct file *file,
 		struct gfs2_glock_iter *gi = seq->private;
 
 		gi->sdp = inode->i_private;
-		gi->last_pos = 0;
 		seq->buf = kmalloc(GFS2_SEQ_GOODSIZE, GFP_KERNEL | __GFP_NOWARN);
 		if (seq->buf)
 			seq->size = GFS2_SEQ_GOODSIZE;
 		gi->gl = NULL;
-		rhashtable_walk_enter(&gl_hash_table, &gi->hti);
 	}
 	return ret;
 }
@@ -2063,7 +2060,6 @@ static int gfs2_glocks_release(struct inode *inode, struct file *file)
 	struct gfs2_glock_iter *gi = seq->private;
 
 	gi->gl = NULL;
-	rhashtable_walk_exit(&gi->hti);
 	return seq_release_private(inode, file);
 }
 
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index dac6559e2195..cdd1c5f06f45 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -554,7 +554,7 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
 	struct gfs2_inode *ip = gl->gl_object;
 	struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
 
-	if (!remote || (sdp->sd_vfs->s_flags & MS_RDONLY))
+	if (!remote || sb_rdonly(sdp->sd_vfs))
 		return;
 
 	if (gl->gl_demote_state == LM_ST_UNLOCKED &&
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 863749e29bf9..4e971b1c7f92 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -18,7 +18,7 @@
 #include <linux/posix_acl.h>
 #include <linux/gfs2_ondisk.h>
 #include <linux/crc32.h>
-#include <linux/fiemap.h>
+#include <linux/iomap.h>
 #include <linux/security.h>
 #include <linux/uaccess.h>
 
@@ -189,7 +189,8 @@ struct inode *gfs2_inode_lookup(struct super_block *sb, unsigned int type,
 
 		gfs2_set_iop(inode);
 
-		inode->i_atime.tv_sec = 0;
+		/* Lowest possible timestamp; will be overwritten in gfs2_dinode_in. */
+		inode->i_atime.tv_sec = 1LL << (8 * sizeof(inode->i_atime.tv_sec) - 1);
 		inode->i_atime.tv_nsec = 0;
 
 		unlock_new_inode(inode);
@@ -1986,6 +1987,7 @@ static int gfs2_getattr(const struct path *path, struct kstat *stat,
 	struct inode *inode = d_inode(path->dentry);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_holder gh;
+	u32 gfsflags;
 	int error;
 
 	gfs2_holder_mark_uninitialized(&gh);
@@ -1995,13 +1997,30 @@ static int gfs2_getattr(const struct path *path, struct kstat *stat,
 			return error;
 	}
 
+	gfsflags = ip->i_diskflags;
+	if (gfsflags & GFS2_DIF_APPENDONLY)
+		stat->attributes |= STATX_ATTR_APPEND;
+	if (gfsflags & GFS2_DIF_IMMUTABLE)
+		stat->attributes |= STATX_ATTR_IMMUTABLE;
+
+	stat->attributes_mask |= (STATX_ATTR_APPEND |
+				  STATX_ATTR_COMPRESSED |
+				  STATX_ATTR_ENCRYPTED |
+				  STATX_ATTR_IMMUTABLE |
+				  STATX_ATTR_NODUMP);
+
 	generic_fillattr(inode, stat);
+
 	if (gfs2_holder_initialized(&gh))
 		gfs2_glock_dq_uninit(&gh);
 
 	return 0;
 }
 
+const struct iomap_ops gfs2_iomap_ops = {
+	.iomap_begin = gfs2_iomap_begin,
+};
+
 static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		       u64 start, u64 len)
 {
@@ -2009,41 +2028,59 @@ static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 	struct gfs2_holder gh;
 	int ret;
 
-	ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
-	if (ret)
-		return ret;
-
-	inode_lock(inode);
+	inode_lock_shared(inode);
 
 	ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
 	if (ret)
 		goto out;
 
-	if (gfs2_is_stuffed(ip)) {
-		u64 phys = ip->i_no_addr << inode->i_blkbits;
-		u64 size = i_size_read(inode);
-		u32 flags = FIEMAP_EXTENT_LAST|FIEMAP_EXTENT_NOT_ALIGNED|
-			    FIEMAP_EXTENT_DATA_INLINE;
-		phys += sizeof(struct gfs2_dinode);
-		phys += start;
-		if (start + len > size)
-			len = size - start;
-		if (start < size)
-			ret = fiemap_fill_next_extent(fieinfo, start, phys,
-						      len, flags);
-		if (ret == 1)
-			ret = 0;
-	} else {
-		ret = __generic_block_fiemap(inode, fieinfo, start, len,
-					     gfs2_block_map);
-	}
+	ret = iomap_fiemap(inode, fieinfo, start, len, &gfs2_iomap_ops);
 
 	gfs2_glock_dq_uninit(&gh);
+
 out:
-	inode_unlock(inode);
+	inode_unlock_shared(inode);
 	return ret;
 }
 
+loff_t gfs2_seek_data(struct file *file, loff_t offset)
+{
+	struct inode *inode = file->f_mapping->host;
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_holder gh;
+	loff_t ret;
+
+	inode_lock_shared(inode);
+	ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
+	if (!ret)
+		ret = iomap_seek_data(inode, offset, &gfs2_iomap_ops);
+	gfs2_glock_dq_uninit(&gh);
+	inode_unlock_shared(inode);
+
+	if (ret < 0)
+		return ret;
+	return vfs_setpos(file, ret, inode->i_sb->s_maxbytes);
+}
+
+loff_t gfs2_seek_hole(struct file *file, loff_t offset)
+{
+	struct inode *inode = file->f_mapping->host;
+	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_holder gh;
+	loff_t ret;
+
+	inode_lock_shared(inode);
+	ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
+	if (!ret)
+		ret = iomap_seek_hole(inode, offset, &gfs2_iomap_ops);
+	gfs2_glock_dq_uninit(&gh);
+	inode_unlock_shared(inode);
+
+	if (ret < 0)
+		return ret;
+	return vfs_setpos(file, ret, inode->i_sb->s_maxbytes);
+}
+
 const struct inode_operations gfs2_file_iops = {
 	.permission = gfs2_permission,
 	.setattr = gfs2_setattr,
diff --git a/fs/gfs2/inode.h b/fs/gfs2/inode.h
index aace8ce34a18..b5b6341a4f5c 100644
--- a/fs/gfs2/inode.h
+++ b/fs/gfs2/inode.h
@@ -109,6 +109,8 @@ extern int gfs2_setattr_simple(struct inode *inode, struct iattr *attr);
 extern struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
 extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
 extern int gfs2_open_common(struct inode *inode, struct file *file);
+extern loff_t gfs2_seek_data(struct file *file, loff_t offset);
+extern loff_t gfs2_seek_hole(struct file *file, loff_t offset);
 
 extern const struct inode_operations gfs2_file_iops;
 extern const struct inode_operations gfs2_dir_iops;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 84593587691d..a3711f543405 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -1037,7 +1037,7 @@ void gfs2_online_uevent(struct gfs2_sbd *sdp)
 	char ro[20];
 	char spectator[20];
 	char *envp[] = { ro, spectator, NULL };
-	sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
+	sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
 	sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
 	kobject_uevent_env(&sdp->sd_kobj, KOBJ_ONLINE, envp);
 }
@@ -1179,7 +1179,7 @@ static int fill_super(struct super_block *sb, struct gfs2_args *args, int silent
 		goto fail_per_node;
 	}
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		error = gfs2_make_fs_rw(sdp);
 		if (error) {
 			fs_err(sdp, "can't make FS RW: %d\n", error);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index e647938432bd..e700fb162664 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -452,7 +452,7 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 
 	*qdp = NULL;
 
-	if (sdp->sd_vfs->s_flags & MS_RDONLY)
+	if (sb_rdonly(sdp->sd_vfs))
 		return 0;
 
 	spin_lock(&qd_lock);
diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index 113b6095a58d..9395a3db1a60 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -522,7 +522,7 @@ void gfs2_recover_func(struct work_struct *work)
 			if (!test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags))
 				ro = 1;
 		} else {
-			if (sdp->sd_vfs->s_flags & MS_RDONLY) {
+			if (sb_rdonly(sdp->sd_vfs)) {
 				/* check if device itself is read-only */
 				ro = bdev_read_only(sdp->sd_vfs->s_bdev);
 				if (!ro) {
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index 769841185ce5..9cb5c9a97d69 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -754,14 +754,15 @@ static int gfs2_write_inode(struct inode *inode, struct writeback_control *wbc)
 	struct address_space *metamapping = gfs2_glock2aspace(ip->i_gl);
 	struct backing_dev_info *bdi = inode_to_bdi(metamapping->host);
 	int ret = 0;
+	bool flush_all = (wbc->sync_mode == WB_SYNC_ALL || gfs2_is_jdata(ip));
 
-	if (wbc->sync_mode == WB_SYNC_ALL)
+	if (flush_all)
 		gfs2_log_flush(GFS2_SB(inode), ip->i_gl, NORMAL_FLUSH);
 	if (bdi->wb.dirty_exceeded)
 		gfs2_ail1_flush(sdp, wbc);
 	else
 		filemap_fdatawrite(metamapping);
-	if (wbc->sync_mode == WB_SYNC_ALL)
+	if (flush_all)
 		ret = filemap_fdatawait(metamapping);
 	if (ret)
 		mark_inode_dirty_sync(inode);
@@ -893,7 +894,7 @@ restart:
 	}
 	spin_unlock(&sdp->sd_jindex_spin);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		error = gfs2_make_fs_ro(sdp);
 		if (error)
 			gfs2_io_error(sdp);
@@ -1569,7 +1570,7 @@ static void gfs2_evict_inode(struct inode *inode)
 		return;
 	}
 
-	if (inode->i_nlink || (sb->s_flags & MS_RDONLY))
+	if (inode->i_nlink || sb_rdonly(sb))
 		goto out;
 
 	if (test_bit(GIF_ALLOC_FAILED, &ip->i_flags)) {
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index ca1f97ff898c..9eb9d0a1abd9 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -645,7 +645,7 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
 	char *envp[] = { ro, spectator, NULL };
 	int sysfs_frees_sdp = 0;
 
-	sprintf(ro, "RDONLY=%d", (sb->s_flags & MS_RDONLY) ? 1 : 0);
+	sprintf(ro, "RDONLY=%d", sb_rdonly(sb));
 	sprintf(spectator, "SPECTATOR=%d", sdp->sd_args.ar_spectator ? 1 : 0);
 
 	sdp->sd_kobj.kset = gfs2_kset;
diff --git a/fs/gfs2/trace_gfs2.h b/fs/gfs2/trace_gfs2.h
index 49ac55da4e33..f67a709589d3 100644
--- a/fs/gfs2/trace_gfs2.h
+++ b/fs/gfs2/trace_gfs2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM gfs2
 
@@ -12,6 +13,7 @@
 #include <linux/gfs2_ondisk.h>
 #include <linux/writeback.h>
 #include <linux/ktime.h>
+#include <linux/iomap.h>
 #include "incore.h"
 #include "glock.h"
 #include "rgrp.h"
@@ -469,6 +471,70 @@ TRACE_EVENT(gfs2_bmap,
 		  __entry->errno)
 );
 
+TRACE_EVENT(gfs2_iomap_start,
+
+	TP_PROTO(const struct gfs2_inode *ip, loff_t pos, ssize_t length,
+		 u16 flags),
+
+	TP_ARGS(ip, pos, length, flags),
+
+	TP_STRUCT__entry(
+		__field(        dev_t,  dev                     )
+		__field(	u64,	inum			)
+		__field(	loff_t, pos			)
+		__field(	ssize_t, length			)
+		__field(	u16,	flags			)
+	),
+
+	TP_fast_assign(
+		__entry->dev            = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev;
+		__entry->inum		= ip->i_no_addr;
+		__entry->pos		= pos;
+		__entry->length		= length;
+		__entry->flags		= flags;
+	),
+
+	TP_printk("%u,%u bmap %llu iomap start %llu/%lu flags:%08x",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long long)__entry->inum,
+		  (unsigned long long)__entry->pos,
+		  (unsigned long)__entry->length, (u16)__entry->flags)
+);
+
+TRACE_EVENT(gfs2_iomap_end,
+
+	TP_PROTO(const struct gfs2_inode *ip, struct iomap *iomap, int ret),
+
+	TP_ARGS(ip, iomap, ret),
+
+	TP_STRUCT__entry(
+		__field(        dev_t,  dev                     )
+		__field(	u64,	inum			)
+		__field(	loff_t, offset			)
+		__field(	ssize_t, length			)
+		__field(	u16,	flags			)
+		__field(	u16,	type			)
+		__field(	int,	ret			)
+	),
+
+	TP_fast_assign(
+		__entry->dev            = ip->i_gl->gl_name.ln_sbd->sd_vfs->s_dev;
+		__entry->inum		= ip->i_no_addr;
+		__entry->offset		= iomap->offset;
+		__entry->length		= iomap->length;
+		__entry->flags		= iomap->flags;
+		__entry->type		= iomap->type;
+		__entry->ret		= ret;
+	),
+
+	TP_printk("%u,%u bmap %llu iomap end %llu/%lu ty:%d flags:%08x rc:%d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  (unsigned long long)__entry->inum,
+		  (unsigned long long)__entry->offset,
+		  (unsigned long)__entry->length, (u16)__entry->type,
+		  (u16)__entry->flags, __entry->ret)
+);
+
 /* Keep track of blocks as they are allocated/freed */
 TRACE_EVENT(gfs2_block_alloc,
 
diff --git a/fs/gfs2/trans.c b/fs/gfs2/trans.c
index affef3c066e0..a85ca8b2c9ba 100644
--- a/fs/gfs2/trans.c
+++ b/fs/gfs2/trans.c
@@ -145,7 +145,7 @@ static struct gfs2_bufdata *gfs2_alloc_bufdata(struct gfs2_glock *gl,
  *
  * This is used in two distinct cases:
  * i) In ordered write mode
- *    We put the data buffer on a list so that we can ensure that its
+ *    We put the data buffer on a list so that we can ensure that it's
  *    synced to disk at the right time
  * ii) In journaled data mode
  *    We need to journal the data block in the same way as metadata in
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index ea09e41dbb49..05de20954659 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -231,7 +231,6 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 	struct gfs2_rgrpd *rgd;
 	struct gfs2_holder rg_gh;
-	struct buffer_head *dibh;
 	__be64 *dataptrs;
 	u64 bn = 0;
 	u64 bstart = 0;
@@ -308,13 +307,8 @@ static int ea_dealloc_unstuffed(struct gfs2_inode *ip, struct buffer_head *bh,
 		ea->ea_num_ptrs = 0;
 	}
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		ip->i_inode.i_ctime = current_time(&ip->i_inode);
-		gfs2_trans_add_meta(ip->i_gl, dibh);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
+	ip->i_inode.i_ctime = current_time(&ip->i_inode);
+	__mark_inode_dirty(&ip->i_inode, I_DIRTY_SYNC | I_DIRTY_DATASYNC);
 
 	gfs2_trans_end(sdp);
 
@@ -616,7 +610,6 @@ static int gfs2_xattr_get(const struct xattr_handler *handler,
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_holder gh;
-	bool need_unlock = false;
 	int ret;
 
 	/* During lookup, SELinux calls this function with the glock locked. */
@@ -625,10 +618,11 @@ static int gfs2_xattr_get(const struct xattr_handler *handler,
 		ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY, &gh);
 		if (ret)
 			return ret;
-		need_unlock = true;
+	} else {
+		gfs2_holder_mark_uninitialized(&gh);
 	}
 	ret = __gfs2_xattr_get(inode, name, buffer, size, handler->flags);
-	if (need_unlock)
+	if (gfs2_holder_initialized(&gh))
 		gfs2_glock_dq_uninit(&gh);
 	return ret;
 }
@@ -749,7 +743,6 @@ static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 			     ea_skeleton_call_t skeleton_call, void *private)
 {
 	struct gfs2_alloc_parms ap = { .target = blks };
-	struct buffer_head *dibh;
 	int error;
 
 	error = gfs2_rindex_update(GFS2_SB(&ip->i_inode));
@@ -774,13 +767,8 @@ static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 	if (error)
 		goto out_end_trans;
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		ip->i_inode.i_ctime = current_time(&ip->i_inode);
-		gfs2_trans_add_meta(ip->i_gl, dibh);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
+	ip->i_inode.i_ctime = current_time(&ip->i_inode);
+	__mark_inode_dirty(&ip->i_inode, I_DIRTY_SYNC | I_DIRTY_DATASYNC);
 
 out_end_trans:
 	gfs2_trans_end(GFS2_SB(&ip->i_inode));
@@ -891,7 +879,6 @@ static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh,
 				 struct gfs2_ea_header *ea, struct ea_set *es)
 {
 	struct gfs2_ea_request *er = es->es_er;
-	struct buffer_head *dibh;
 	int error;
 
 	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + 2 * RES_EATTR, 0);
@@ -908,14 +895,9 @@ static int ea_set_simple_noalloc(struct gfs2_inode *ip, struct buffer_head *bh,
 	if (es->es_el)
 		ea_set_remove_stuffed(ip, es->es_el);
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (error)
-		goto out;
 	ip->i_inode.i_ctime = current_time(&ip->i_inode);
-	gfs2_trans_add_meta(ip->i_gl, dibh);
-	gfs2_dinode_out(ip, dibh->b_data);
-	brelse(dibh);
-out:
+	__mark_inode_dirty(&ip->i_inode, I_DIRTY_SYNC | I_DIRTY_DATASYNC);
+
 	gfs2_trans_end(GFS2_SB(&ip->i_inode));
 	return error;
 }
@@ -1111,7 +1093,6 @@ static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
 {
 	struct gfs2_ea_header *ea = el->el_ea;
 	struct gfs2_ea_header *prev = el->el_prev;
-	struct buffer_head *dibh;
 	int error;
 
 	error = gfs2_trans_begin(GFS2_SB(&ip->i_inode), RES_DINODE + RES_EATTR, 0);
@@ -1132,13 +1113,8 @@ static int ea_remove_stuffed(struct gfs2_inode *ip, struct gfs2_ea_location *el)
 		ea->ea_type = GFS2_EATYPE_UNUSED;
 	}
 
-	error = gfs2_meta_inode_buffer(ip, &dibh);
-	if (!error) {
-		ip->i_inode.i_ctime = current_time(&ip->i_inode);
-		gfs2_trans_add_meta(ip->i_gl, dibh);
-		gfs2_dinode_out(ip, dibh->b_data);
-		brelse(dibh);
-	}
+	ip->i_inode.i_ctime = current_time(&ip->i_inode);
+	__mark_inode_dirty(&ip->i_inode, I_DIRTY_SYNC | I_DIRTY_DATASYNC);
 
 	gfs2_trans_end(GFS2_SB(&ip->i_inode));
 
@@ -1268,11 +1244,20 @@ static int gfs2_xattr_set(const struct xattr_handler *handler,
 	if (ret)
 		return ret;
 
-	ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
-	if (ret)
-		return ret;
+	/* May be called from gfs_setattr with the glock locked. */
+
+	if (!gfs2_glock_is_locked_by_me(ip->i_gl)) {
+		ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
+		if (ret)
+			return ret;
+	} else {
+		if (WARN_ON_ONCE(ip->i_gl->gl_state != LM_ST_EXCLUSIVE))
+			return -EIO;
+		gfs2_holder_mark_uninitialized(&gh);
+	}
 	ret = __gfs2_xattr_set(inode, name, value, size, flags, handler->flags);
-	gfs2_glock_dq_uninit(&gh);
+	if (gfs2_holder_initialized(&gh))
+		gfs2_glock_dq_uninit(&gh);
 	return ret;
 }
 
diff --git a/fs/hfs/attr.c b/fs/hfs/attr.c
index 0933600e11c8..74fa62643136 100644
--- a/fs/hfs/attr.c
+++ b/fs/hfs/attr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfs/attr.c
  *
diff --git a/fs/hfs/bfind.c b/fs/hfs/bfind.c
index de69d8a24f6d..4af318fbda77 100644
--- a/fs/hfs/bfind.c
+++ b/fs/hfs/bfind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfs/bfind.c
  *
diff --git a/fs/hfs/bnode.c b/fs/hfs/bnode.c
index d77d844b668b..8aec5e732abf 100644
--- a/fs/hfs/bnode.c
+++ b/fs/hfs/bnode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfs/bnode.c
  *
diff --git a/fs/hfs/brec.c b/fs/hfs/brec.c
index 6fc766df0461..ad04a5741016 100644
--- a/fs/hfs/brec.c
+++ b/fs/hfs/brec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfs/brec.c
  *
diff --git a/fs/hfs/btree.c b/fs/hfs/btree.c
index 37cdd955eceb..374b5688e29e 100644
--- a/fs/hfs/btree.c
+++ b/fs/hfs/btree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfs/btree.c
  *
diff --git a/fs/hfs/btree.h b/fs/hfs/btree.h
index f6bd266d70b5..c8b252dbb26c 100644
--- a/fs/hfs/btree.h
+++ b/fs/hfs/btree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/fs/hfs/btree.h
  *
diff --git a/fs/hfs/mdb.c b/fs/hfs/mdb.c
index 482081bcdf70..894994d2c885 100644
--- a/fs/hfs/mdb.c
+++ b/fs/hfs/mdb.c
@@ -210,7 +210,7 @@ int hfs_mdb_get(struct super_block *sb)
 		pr_warn("filesystem is marked locked, mounting read-only.\n");
 		sb->s_flags |= MS_RDONLY;
 	}
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		/* Mark the volume uncleanly unmounted in case we crash */
 		attrib &= cpu_to_be16(~HFS_SB_ATTRIB_UNMNT);
 		attrib |= cpu_to_be16(HFS_SB_ATTRIB_INCNSTNT);
@@ -259,7 +259,7 @@ void hfs_mdb_commit(struct super_block *sb)
 {
 	struct hfs_mdb *mdb = HFS_SB(sb)->mdb;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	lock_buffer(HFS_SB(sb)->mdb_bh);
@@ -334,7 +334,7 @@ void hfs_mdb_commit(struct super_block *sb)
 void hfs_mdb_close(struct super_block *sb)
 {
 	/* update volume attributes */
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 	HFS_SB(sb)->mdb->drAtrb |= cpu_to_be16(HFS_SB_ATTRIB_UNMNT);
 	HFS_SB(sb)->mdb->drAtrb &= cpu_to_be16(~HFS_SB_ATTRIB_INCNSTNT);
diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index bf6304a350a6..7e0d65e9586c 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -71,7 +71,7 @@ void hfs_mark_mdb_dirty(struct super_block *sb)
 	struct hfs_sb_info *sbi = HFS_SB(sb);
 	unsigned long delay;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	spin_lock(&sbi->work_lock);
@@ -115,7 +115,7 @@ static int hfs_remount(struct super_block *sb, int *flags, char *data)
 {
 	sync_filesystem(sb);
 	*flags |= MS_NODIRATIME;
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		return 0;
 	if (!(*flags & MS_RDONLY)) {
 		if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
diff --git a/fs/hfsplus/Makefile b/fs/hfsplus/Makefile
index 683fca2e5e65..f6a56542f8d7 100644
--- a/fs/hfsplus/Makefile
+++ b/fs/hfsplus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 ## Makefile for the linux hfsplus filesystem routines.
 #
diff --git a/fs/hfsplus/acl.h b/fs/hfsplus/acl.h
index 95c8ed9ec17f..488c2b75cf41 100644
--- a/fs/hfsplus/acl.h
+++ b/fs/hfsplus/acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/hfsplus/acl.h
  *
diff --git a/fs/hfsplus/attributes.c b/fs/hfsplus/attributes.c
index e5b221de7de6..2bab6b3cdba4 100644
--- a/fs/hfsplus/attributes.c
+++ b/fs/hfsplus/attributes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/attributes.c
  *
diff --git a/fs/hfsplus/bfind.c b/fs/hfsplus/bfind.c
index 528e38b5af7f..ca2ba8c9f82e 100644
--- a/fs/hfsplus/bfind.c
+++ b/fs/hfsplus/bfind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/bfind.c
  *
diff --git a/fs/hfsplus/bitmap.c b/fs/hfsplus/bitmap.c
index c0ae274c0a22..cebce0cfe340 100644
--- a/fs/hfsplus/bitmap.c
+++ b/fs/hfsplus/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/bitmap.c
  *
diff --git a/fs/hfsplus/bnode.c b/fs/hfsplus/bnode.c
index ce014ceb89ef..d77015c3f22c 100644
--- a/fs/hfsplus/bnode.c
+++ b/fs/hfsplus/bnode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/bnode.c
  *
diff --git a/fs/hfsplus/brec.c b/fs/hfsplus/brec.c
index 754fdf8c6356..808f4d8c859c 100644
--- a/fs/hfsplus/brec.c
+++ b/fs/hfsplus/brec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/brec.c
  *
diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index d9d1a36ba826..de14b2b6881b 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/btree.c
  *
diff --git a/fs/hfsplus/catalog.c b/fs/hfsplus/catalog.c
index a5e00f7a4c14..a196369ba779 100644
--- a/fs/hfsplus/catalog.c
+++ b/fs/hfsplus/catalog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/catalog.c
  *
diff --git a/fs/hfsplus/dir.c b/fs/hfsplus/dir.c
index 31d5e3f1fe17..e8120a282435 100644
--- a/fs/hfsplus/dir.c
+++ b/fs/hfsplus/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/dir.c
  *
diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index a3eb640b4f8f..e8770935ce6d 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/extents.c
  *
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index a3f03b247463..a015044daa05 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/hfsplus_fs.h
  *
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index 8298d0985f81..456e87aec7fd 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/hfsplus_raw.h
  *
diff --git a/fs/hfsplus/inode.c b/fs/hfsplus/inode.c
index 4f26b6877130..190c60efbc99 100644
--- a/fs/hfsplus/inode.c
+++ b/fs/hfsplus/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/inode.c
  *
diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c
index 0a156d84e67d..5e6502ef7415 100644
--- a/fs/hfsplus/ioctl.c
+++ b/fs/hfsplus/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/ioctl.c
  *
diff --git a/fs/hfsplus/options.c b/fs/hfsplus/options.c
index bb806e58c977..047e05c57560 100644
--- a/fs/hfsplus/options.c
+++ b/fs/hfsplus/options.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/options.c
  *
diff --git a/fs/hfsplus/posix_acl.c b/fs/hfsplus/posix_acl.c
index 6bb5d7c42888..066114dcc3a2 100644
--- a/fs/hfsplus/posix_acl.c
+++ b/fs/hfsplus/posix_acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/posix_acl.c
  *
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 67aedf4c2e7c..e5bb2de2262a 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -264,7 +264,7 @@ void hfsplus_mark_mdb_dirty(struct super_block *sb)
 	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
 	unsigned long delay;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	spin_lock(&sbi->work_lock);
@@ -284,7 +284,7 @@ static void hfsplus_put_super(struct super_block *sb)
 
 	cancel_delayed_work_sync(&sbi->sync_work);
 
-	if (!(sb->s_flags & MS_RDONLY) && sbi->s_vhdr) {
+	if (!sb_rdonly(sb) && sbi->s_vhdr) {
 		struct hfsplus_vh *vhdr = sbi->s_vhdr;
 
 		vhdr->modify_date = hfsp_now2mt();
@@ -329,7 +329,7 @@ static int hfsplus_statfs(struct dentry *dentry, struct kstatfs *buf)
 static int hfsplus_remount(struct super_block *sb, int *flags, char *data)
 {
 	sync_filesystem(sb);
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		return 0;
 	if (!(*flags & MS_RDONLY)) {
 		struct hfsplus_vh *vhdr = HFSPLUS_SB(sb)->s_vhdr;
@@ -462,7 +462,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 		pr_warn("Filesystem is marked locked, mounting read-only.\n");
 		sb->s_flags |= MS_RDONLY;
 	} else if ((vhdr->attributes & cpu_to_be32(HFSPLUS_VOL_JOURNALED)) &&
-			!(sb->s_flags & MS_RDONLY)) {
+			!sb_rdonly(sb)) {
 		pr_warn("write access to a journaled filesystem is not supported, use the force option at your own risk, mounting read-only.\n");
 		sb->s_flags |= MS_RDONLY;
 	}
@@ -535,7 +535,7 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 	} else
 		hfs_find_exit(&fd);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		/*
 		 * H+LX == hfsplusutils, H+Lx == this driver, H+lx is unused
 		 * all three are registered with Apple for our use
diff --git a/fs/hfsplus/tables.c b/fs/hfsplus/tables.c
index 1b911730a0c1..a5fb8ee7d019 100644
--- a/fs/hfsplus/tables.c
+++ b/fs/hfsplus/tables.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/tables.c
  *
diff --git a/fs/hfsplus/unicode.c b/fs/hfsplus/unicode.c
index e563939882f3..dfa90c21948f 100644
--- a/fs/hfsplus/unicode.c
+++ b/fs/hfsplus/unicode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/unicode.c
  *
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index 10032b919a85..08c1580bdf7a 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hfsplus/wrapper.c
  *
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index d37bb88dc746..e538b758c448 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/xattr.c
  *
diff --git a/fs/hfsplus/xattr.h b/fs/hfsplus/xattr.h
index 68f6b539371f..a4e611d69710 100644
--- a/fs/hfsplus/xattr.h
+++ b/fs/hfsplus/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/hfsplus/xattr.h
  *
diff --git a/fs/hfsplus/xattr_security.c b/fs/hfsplus/xattr_security.c
index 37b3efa733ef..f5550b006e88 100644
--- a/fs/hfsplus/xattr_security.c
+++ b/fs/hfsplus/xattr_security.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/xattr_trusted.c
  *
diff --git a/fs/hfsplus/xattr_trusted.c b/fs/hfsplus/xattr_trusted.c
index 94519d6c627d..fbad91e1dada 100644
--- a/fs/hfsplus/xattr_trusted.c
+++ b/fs/hfsplus/xattr_trusted.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/xattr_trusted.c
  *
diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c
index fae6c0ea0030..74d19faf255e 100644
--- a/fs/hfsplus/xattr_user.c
+++ b/fs/hfsplus/xattr_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/hfsplus/xattr_user.c
  *
diff --git a/fs/hostfs/hostfs.h b/fs/hostfs/hostfs.h
index 91e19f9dffe5..ffaec2e7526c 100644
--- a/fs/hostfs/hostfs.h
+++ b/fs/hostfs/hostfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UM_FS_HOSTFS
 #define __UM_FS_HOSTFS
 
diff --git a/fs/hpfs/alloc.c b/fs/hpfs/alloc.c
index d6a4b55d2ab0..66617b1557c6 100644
--- a/fs/hpfs/alloc.c
+++ b/fs/hpfs/alloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/alloc.c
  *
@@ -538,7 +539,7 @@ int hpfs_trim_fs(struct super_block *s, u64 start, u64 end, u64 minlen, unsigned
 		return 0;
 	if (start < sbi->sb_dirband_start + sbi->sb_dirband_size && end > sbi->sb_dirband_start) {
 		hpfs_lock(s);
-		if (s->s_flags & MS_RDONLY) {
+		if (sb_rdonly(s)) {
 			err = -EROFS;
 			goto unlock_1;
 		}
@@ -559,7 +560,7 @@ unlock_1:
 	end_bmp = (end + 0x3fff) >> 14;
 	while (start_bmp < end_bmp && !err) {
 		hpfs_lock(s);
-		if (s->s_flags & MS_RDONLY) {
+		if (sb_rdonly(s)) {
 			err = -EROFS;
 			goto unlock_2;
 		}
diff --git a/fs/hpfs/anode.c b/fs/hpfs/anode.c
index 2d5b254ad9e2..c14c9a035ee0 100644
--- a/fs/hpfs/anode.c
+++ b/fs/hpfs/anode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/anode.c
  *
diff --git a/fs/hpfs/buffer.c b/fs/hpfs/buffer.c
index f626114449e4..e285d6b3bba4 100644
--- a/fs/hpfs/buffer.c
+++ b/fs/hpfs/buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/buffer.c
  *
diff --git a/fs/hpfs/dentry.c b/fs/hpfs/dentry.c
index bb87d65f0d97..89a36fdc68cb 100644
--- a/fs/hpfs/dentry.c
+++ b/fs/hpfs/dentry.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/dentry.c
  *
diff --git a/fs/hpfs/dir.c b/fs/hpfs/dir.c
index 7b9150c2e75c..8d6b7e35faf9 100644
--- a/fs/hpfs/dir.c
+++ b/fs/hpfs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/dir.c
  *
@@ -264,7 +265,7 @@ struct dentry *hpfs_lookup(struct inode *dir, struct dentry *dentry, unsigned in
 	hpfs_result = hpfs_i(result);
 	if (!de->directory) hpfs_result->i_parent_dir = dir->i_ino;
 
-	if (de->has_acl || de->has_xtd_perm) if (!(dir->i_sb->s_flags & MS_RDONLY)) {
+	if (de->has_acl || de->has_xtd_perm) if (!sb_rdonly(dir->i_sb)) {
 		hpfs_error(result->i_sb, "ACLs or XPERM found. This is probably HPFS386. This driver doesn't support it now. Send me some info on these structures");
 		goto bail1;
 	}
diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
index 86ab7e790b4e..3b834563b1f1 100644
--- a/fs/hpfs/dnode.c
+++ b/fs/hpfs/dnode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/dnode.c
  *
diff --git a/fs/hpfs/ea.c b/fs/hpfs/ea.c
index ce3f98ba993a..102ba18e561f 100644
--- a/fs/hpfs/ea.c
+++ b/fs/hpfs/ea.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/ea.c
  *
diff --git a/fs/hpfs/file.c b/fs/hpfs/file.c
index f26138425b16..1ecec124e76f 100644
--- a/fs/hpfs/file.c
+++ b/fs/hpfs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/file.c
  *
diff --git a/fs/hpfs/hpfs.h b/fs/hpfs/hpfs.h
index cce025aff1b1..823a328791c0 100644
--- a/fs/hpfs/hpfs.h
+++ b/fs/hpfs/hpfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/fs/hpfs/hpfs.h
  *
diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index d352f3a6af7f..2577ef1034ef 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/fs/hpfs/hpfs_fn.h
  *
diff --git a/fs/hpfs/inode.c b/fs/hpfs/inode.c
index b9c724ed1e7e..eb8b4baf0f2e 100644
--- a/fs/hpfs/inode.c
+++ b/fs/hpfs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/inode.c
  *
diff --git a/fs/hpfs/map.c b/fs/hpfs/map.c
index a136929189f0..e0e60b148400 100644
--- a/fs/hpfs/map.c
+++ b/fs/hpfs/map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/map.c
  *
diff --git a/fs/hpfs/name.c b/fs/hpfs/name.c
index b00d396d22c6..ef7ba77f36b8 100644
--- a/fs/hpfs/name.c
+++ b/fs/hpfs/name.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/name.c
  *
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index f30c14414518..a3615e4c730d 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/hpfs/namei.c
  *
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 82067ca22f2b..1516fb4e28f4 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -21,7 +21,7 @@
 
 static void mark_dirty(struct super_block *s, int remount)
 {
-	if (hpfs_sb(s)->sb_chkdsk && (remount || !(s->s_flags & MS_RDONLY))) {
+	if (hpfs_sb(s)->sb_chkdsk && (remount || !sb_rdonly(s))) {
 		struct buffer_head *bh;
 		struct hpfs_spare_block *sb;
 		if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
@@ -41,7 +41,7 @@ static void unmark_dirty(struct super_block *s)
 {
 	struct buffer_head *bh;
 	struct hpfs_spare_block *sb;
-	if (s->s_flags & MS_RDONLY) return;
+	if (sb_rdonly(s)) return;
 	sync_blockdev(s->s_bdev);
 	if ((sb = hpfs_map_sector(s, 17, &bh, 0))) {
 		sb->dirty = hpfs_sb(s)->sb_chkdsk > 1 - hpfs_sb(s)->sb_was_error;
@@ -73,14 +73,14 @@ void hpfs_error(struct super_block *s, const char *fmt, ...)
 			mark_dirty(s, 0);
 			panic("HPFS panic");
 		} else if (hpfs_sb(s)->sb_err == 1) {
-			if (s->s_flags & MS_RDONLY)
+			if (sb_rdonly(s))
 				pr_cont("; already mounted read-only\n");
 			else {
 				pr_cont("; remounting read-only\n");
 				mark_dirty(s, 0);
 				s->s_flags |= MS_RDONLY;
 			}
-		} else if (s->s_flags & MS_RDONLY)
+		} else if (sb_rdonly(s))
 				pr_cont("; going on - but anything won't be destroyed because it's read-only\n");
 		else
 			pr_cont("; corrupted filesystem mounted read/write - your computer will explode within 20 seconds ... but you wanted it so!\n");
@@ -607,8 +607,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	}
 
 	/* Check version */
-	if (!(s->s_flags & MS_RDONLY) &&
-	      superblock->funcversion != 2 && superblock->funcversion != 3) {
+	if (!sb_rdonly(s) && superblock->funcversion != 2 && superblock->funcversion != 3) {
 		pr_err("Bad version %d,%d. Mount readonly to go around\n",
 			(int)superblock->version, (int)superblock->funcversion);
 		pr_err("please try recent version of HPFS driver at http://artax.karlin.mff.cuni.cz/~mikulas/vyplody/hpfs/index-e.cgi and if it still can't understand this format, contact author - mikulas@artax.karlin.mff.cuni.cz\n");
@@ -666,7 +665,7 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 		hpfs_error(s, "improperly stopped");
 	}
 
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 		spareblock->dirty = 1;
 		spareblock->old_wrote = 0;
 		mark_buffer_dirty(bh2);
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 59073e9f01a4..ed113ea17aff 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -842,9 +842,12 @@ static int hugetlbfs_error_remove_page(struct address_space *mapping,
 				struct page *page)
 {
 	struct inode *inode = mapping->host;
+	pgoff_t index = page->index;
 
 	remove_huge_page(page);
-	hugetlb_fix_reserve_counts(inode);
+	if (unlikely(hugetlb_unreserve_pages(inode, index, index + 1, 1)))
+		hugetlb_fix_reserve_counts(inode);
+
 	return 0;
 }
 
diff --git a/fs/inode.c b/fs/inode.c
index d1e35b53bb23..fd401028a309 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -2090,7 +2090,7 @@ void inode_set_flags(struct inode *inode, unsigned int flags,
 
 	WARN_ON_ONCE(flags & ~mask);
 	do {
-		old_flags = ACCESS_ONCE(inode->i_flags);
+		old_flags = READ_ONCE(inode->i_flags);
 		new_flags = (old_flags & ~mask) | flags;
 	} while (unlikely(cmpxchg(&inode->i_flags, old_flags,
 				  new_flags) != old_flags));
diff --git a/fs/ioctl.c b/fs/ioctl.c
index 569db68d02b3..5ace7efb0d04 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ioctl.c
  *
diff --git a/fs/iomap.c b/fs/iomap.c
index 269b24a01f32..b9f74803e56c 100644
--- a/fs/iomap.c
+++ b/fs/iomap.c
@@ -350,8 +350,8 @@ static int iomap_zero(struct inode *inode, loff_t pos, unsigned offset,
 static int iomap_dax_zero(loff_t pos, unsigned offset, unsigned bytes,
 		struct iomap *iomap)
 {
-	sector_t sector = iomap->blkno +
-		(((pos & ~(PAGE_SIZE - 1)) - iomap->offset) >> 9);
+	sector_t sector = (iomap->addr +
+			   (pos & PAGE_MASK) - iomap->offset) >> 9;
 
 	return __dax_zero_page_range(iomap->bdev, iomap->dax_dev, sector,
 			offset, bytes);
@@ -510,11 +510,12 @@ static int iomap_to_fiemap(struct fiemap_extent_info *fi,
 		flags |= FIEMAP_EXTENT_MERGED;
 	if (iomap->flags & IOMAP_F_SHARED)
 		flags |= FIEMAP_EXTENT_SHARED;
+	if (iomap->flags & IOMAP_F_DATA_INLINE)
+		flags |= FIEMAP_EXTENT_DATA_INLINE;
 
 	return fiemap_fill_next_extent(fi, iomap->offset,
-			iomap->blkno != IOMAP_NULL_BLOCK ? iomap->blkno << 9: 0,
+			iomap->addr != IOMAP_NULL_ADDR ? iomap->addr : 0,
 			iomap->length, flags);
-
 }
 
 static loff_t
@@ -713,6 +714,8 @@ struct iomap_dio {
 static ssize_t iomap_dio_complete(struct iomap_dio *dio)
 {
 	struct kiocb *iocb = dio->iocb;
+	struct inode *inode = file_inode(iocb->ki_filp);
+	loff_t offset = iocb->ki_pos;
 	ssize_t ret;
 
 	if (dio->end_io) {
@@ -726,12 +729,33 @@ static ssize_t iomap_dio_complete(struct iomap_dio *dio)
 	if (likely(!ret)) {
 		ret = dio->size;
 		/* check for short read */
-		if (iocb->ki_pos + ret > dio->i_size &&
+		if (offset + ret > dio->i_size &&
 		    !(dio->flags & IOMAP_DIO_WRITE))
-			ret = dio->i_size - iocb->ki_pos;
+			ret = dio->i_size - offset;
 		iocb->ki_pos += ret;
 	}
 
+	/*
+	 * Try again to invalidate clean pages which might have been cached by
+	 * non-direct readahead, or faulted in by get_user_pages() if the source
+	 * of the write was an mmap'ed region of the file we're writing.  Either
+	 * one is a pretty crazy thing to do, so we don't support it 100%.  If
+	 * this invalidation fails, tough, the write still worked...
+	 *
+	 * And this page cache invalidation has to be after dio->end_io(), as
+	 * some filesystems convert unwritten extents to real allocations in
+	 * end_io() when necessary, otherwise a racing buffer read would cache
+	 * zeros from unwritten extents.
+	 */
+	if (!dio->error &&
+	    (dio->flags & IOMAP_DIO_WRITE) && inode->i_mapping->nrpages) {
+		int err;
+		err = invalidate_inode_pages2_range(inode->i_mapping,
+				offset >> PAGE_SHIFT,
+				(offset + dio->size - 1) >> PAGE_SHIFT);
+		WARN_ON_ONCE(err);
+	}
+
 	inode_dio_end(file_inode(iocb->ki_filp));
 	kfree(dio);
 
@@ -807,7 +831,7 @@ iomap_dio_zero(struct iomap_dio *dio, struct iomap *iomap, loff_t pos,
 	bio = bio_alloc(GFP_KERNEL, 1);
 	bio_set_dev(bio, iomap->bdev);
 	bio->bi_iter.bi_sector =
-		iomap->blkno + ((pos - iomap->offset) >> 9);
+		(iomap->addr + pos - iomap->offset) >> 9;
 	bio->bi_private = dio;
 	bio->bi_end_io = iomap_dio_bio_end_io;
 
@@ -886,7 +910,7 @@ iomap_dio_actor(struct inode *inode, loff_t pos, loff_t length,
 		bio = bio_alloc(GFP_KERNEL, nr_pages);
 		bio_set_dev(bio, iomap->bdev);
 		bio->bi_iter.bi_sector =
-			iomap->blkno + ((pos - iomap->offset) >> 9);
+			(iomap->addr + pos - iomap->offset) >> 9;
 		bio->bi_write_hint = dio->iocb->ki_hint;
 		bio->bi_private = dio;
 		bio->bi_end_io = iomap_dio_bio_end_io;
@@ -993,6 +1017,13 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
 	WARN_ON_ONCE(ret);
 	ret = 0;
 
+	if (iov_iter_rw(iter) == WRITE && !is_sync_kiocb(iocb) &&
+	    !inode->i_sb->s_dio_done_wq) {
+		ret = sb_init_dio_done_wq(inode->i_sb);
+		if (ret < 0)
+			goto out_free_dio;
+	}
+
 	inode_dio_begin(inode);
 
 	blk_start_plug(&plug);
@@ -1015,13 +1046,6 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
 	if (ret < 0)
 		iomap_dio_set_error(dio, ret);
 
-	if (ret >= 0 && iov_iter_rw(iter) == WRITE && !is_sync_kiocb(iocb) &&
-			!inode->i_sb->s_dio_done_wq) {
-		ret = sb_init_dio_done_wq(inode->i_sb);
-		if (ret < 0)
-			iomap_dio_set_error(dio, ret);
-	}
-
 	if (!atomic_dec_and_test(&dio->ref)) {
 		if (!is_sync_kiocb(iocb))
 			return -EIOCBQUEUED;
@@ -1033,7 +1057,7 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
 
 			if (!(iocb->ki_flags & IOCB_HIPRI) ||
 			    !dio->submit.last_queue ||
-			    !blk_mq_poll(dio->submit.last_queue,
+			    !blk_poll(dio->submit.last_queue,
 					 dio->submit.cookie))
 				io_schedule();
 		}
@@ -1042,19 +1066,6 @@ iomap_dio_rw(struct kiocb *iocb, struct iov_iter *iter,
 
 	ret = iomap_dio_complete(dio);
 
-	/*
-	 * Try again to invalidate clean pages which might have been cached by
-	 * non-direct readahead, or faulted in by get_user_pages() if the source
-	 * of the write was an mmap'ed region of the file we're writing.  Either
-	 * one is a pretty crazy thing to do, so we don't support it 100%.  If
-	 * this invalidation fails, tough, the write still worked...
-	 */
-	if (iov_iter_rw(iter) == WRITE) {
-		int err = invalidate_inode_pages2_range(mapping,
-				start >> PAGE_SHIFT, end >> PAGE_SHIFT);
-		WARN_ON_ONCE(err);
-	}
-
 	return ret;
 
 out_free_dio:
diff --git a/fs/isofs/Makefile b/fs/isofs/Makefile
index bf162f0942d5..6498fd2b0f60 100644
--- a/fs/isofs/Makefile
+++ b/fs/isofs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux isofs filesystem routines.
 #
diff --git a/fs/isofs/dir.c b/fs/isofs/dir.c
index e7599615e4e0..947ce22f5b3c 100644
--- a/fs/isofs/dir.c
+++ b/fs/isofs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/isofs/dir.c
  *
diff --git a/fs/isofs/export.c b/fs/isofs/export.c
index 0c5f721b4e91..85a9093769a9 100644
--- a/fs/isofs/export.c
+++ b/fs/isofs/export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fs/isofs/export.c
  *
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index f1ed935322db..447a24d77b89 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -514,9 +514,11 @@ static int isofs_show_options(struct seq_file *m, struct dentry *root)
 	if (sbi->s_fmode != ISOFS_INVALID_MODE)
 		seq_printf(m, ",fmode=%o", sbi->s_fmode);
 
+#ifdef CONFIG_JOLIET
 	if (sbi->s_nls_iocharset &&
 	    strcmp(sbi->s_nls_iocharset->charset, CONFIG_NLS_DEFAULT) != 0)
 		seq_printf(m, ",iocharset=%s", sbi->s_nls_iocharset->charset);
+#endif
 	return 0;
 }
 
@@ -737,7 +739,7 @@ static int isofs_fill_super(struct super_block *s, void *data, int silent)
 
 root_found:
 	/* We don't support read-write mounts */
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 		error = -EACCES;
 		goto out_freebh;
 	}
diff --git a/fs/isofs/isofs.h b/fs/isofs/isofs.h
index 133a456b0425..055ec6c586f7 100644
--- a/fs/isofs/isofs.h
+++ b/fs/isofs/isofs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fs.h>
 #include <linux/buffer_head.h>
 #include <linux/exportfs.h>
@@ -72,41 +73,41 @@ static inline struct iso_inode_info *ISOFS_I(struct inode *inode)
 	return container_of(inode, struct iso_inode_info, vfs_inode);
 }
 
-static inline int isonum_711(char *p)
+static inline int isonum_711(u8 *p)
 {
-	return *(u8 *)p;
+	return *p;
 }
-static inline int isonum_712(char *p)
+static inline int isonum_712(s8 *p)
 {
-	return *(s8 *)p;
+	return *p;
 }
-static inline unsigned int isonum_721(char *p)
+static inline unsigned int isonum_721(u8 *p)
 {
 	return get_unaligned_le16(p);
 }
-static inline unsigned int isonum_722(char *p)
+static inline unsigned int isonum_722(u8 *p)
 {
 	return get_unaligned_be16(p);
 }
-static inline unsigned int isonum_723(char *p)
+static inline unsigned int isonum_723(u8 *p)
 {
 	/* Ignore bigendian datum due to broken mastering programs */
 	return get_unaligned_le16(p);
 }
-static inline unsigned int isonum_731(char *p)
+static inline unsigned int isonum_731(u8 *p)
 {
 	return get_unaligned_le32(p);
 }
-static inline unsigned int isonum_732(char *p)
+static inline unsigned int isonum_732(u8 *p)
 {
 	return get_unaligned_be32(p);
 }
-static inline unsigned int isonum_733(char *p)
+static inline unsigned int isonum_733(u8 *p)
 {
 	/* Ignore bigendian datum due to broken mastering programs */
 	return get_unaligned_le32(p);
 }
-extern int iso_date(char *, int);
+extern int iso_date(u8 *, int);
 
 struct inode;		/* To make gcc happy */
 
diff --git a/fs/isofs/joliet.c b/fs/isofs/joliet.c
index a048de81c093..be8b6a9d0b92 100644
--- a/fs/isofs/joliet.c
+++ b/fs/isofs/joliet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/isofs/joliet.c
  *
diff --git a/fs/isofs/namei.c b/fs/isofs/namei.c
index aee592767f1d..cac468f04820 100644
--- a/fs/isofs/namei.c
+++ b/fs/isofs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/isofs/namei.c
  *
diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 0ec137310320..94ef92fe806c 100644
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/isofs/rock.c
  *
diff --git a/fs/isofs/rock.h b/fs/isofs/rock.h
index ed09e2b08637..1558cf22ef8a 100644
--- a/fs/isofs/rock.h
+++ b/fs/isofs/rock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * These structs are used by the system-use-sharing protocol, in which the
  * Rock Ridge extensions are embedded.  It is quite possible that other
@@ -6,78 +7,78 @@
  */
 
 struct SU_SP_s {
-	unsigned char magic[2];
-	unsigned char skip;
+	__u8 magic[2];
+	__u8 skip;
 } __attribute__ ((packed));
 
 struct SU_CE_s {
-	char extent[8];
-	char offset[8];
-	char size[8];
+	__u8 extent[8];
+	__u8 offset[8];
+	__u8 size[8];
 };
 
 struct SU_ER_s {
-	unsigned char len_id;
-	unsigned char len_des;
-	unsigned char len_src;
-	unsigned char ext_ver;
-	char data[0];
+	__u8 len_id;
+	__u8 len_des;
+	__u8 len_src;
+	__u8 ext_ver;
+	__u8 data[0];
 } __attribute__ ((packed));
 
 struct RR_RR_s {
-	char flags[1];
+	__u8 flags[1];
 } __attribute__ ((packed));
 
 struct RR_PX_s {
-	char mode[8];
-	char n_links[8];
-	char uid[8];
-	char gid[8];
+	__u8 mode[8];
+	__u8 n_links[8];
+	__u8 uid[8];
+	__u8 gid[8];
 };
 
 struct RR_PN_s {
-	char dev_high[8];
-	char dev_low[8];
+	__u8 dev_high[8];
+	__u8 dev_low[8];
 };
 
 struct SL_component {
-	unsigned char flags;
-	unsigned char len;
-	char text[0];
+	__u8 flags;
+	__u8 len;
+	__u8 text[0];
 } __attribute__ ((packed));
 
 struct RR_SL_s {
-	unsigned char flags;
+	__u8 flags;
 	struct SL_component link;
 } __attribute__ ((packed));
 
 struct RR_NM_s {
-	unsigned char flags;
+	__u8 flags;
 	char name[0];
 } __attribute__ ((packed));
 
 struct RR_CL_s {
-	char location[8];
+	__u8 location[8];
 };
 
 struct RR_PL_s {
-	char location[8];
+	__u8 location[8];
 };
 
 struct stamp {
-	char time[7];
+	__u8 time[7];		/* actually 6 unsigned, 1 signed */
 } __attribute__ ((packed));
 
 struct RR_TF_s {
-	char flags;
+	__u8 flags;
 	struct stamp times[0];	/* Variable number of these beasts */
 } __attribute__ ((packed));
 
 /* Linux-specific extension for transparent decompression */
 struct RR_ZF_s {
-	char algorithm[2];
-	char parms[2];
-	char real_size[8];
+	__u8 algorithm[2];
+	__u8 parms[2];
+	__u8 real_size[8];
 };
 
 /*
@@ -93,9 +94,9 @@ struct RR_ZF_s {
 #define TF_LONG_FORM 128
 
 struct rock_ridge {
-	char signature[2];
-	unsigned char len;
-	unsigned char version;
+	__u8 signature[2];
+	__u8 len;
+	__u8 version;
 	union {
 		struct SU_SP_s SP;
 		struct SU_CE_s CE;
diff --git a/fs/isofs/util.c b/fs/isofs/util.c
index 005a15cfd30a..e88dba721661 100644
--- a/fs/isofs/util.c
+++ b/fs/isofs/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/isofs/util.c
  */
@@ -15,7 +16,7 @@
  * to GMT.  Thus  we should always be correct.
  */
 
-int iso_date(char * p, int flag)
+int iso_date(u8 *p, int flag)
 {
 	int year, month, day, hour, minute, second, tz;
 	int crtime;
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 7d5ef3bf3f3e..d2a85c9720e9 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -165,11 +165,11 @@ static void jbd2_superblock_csum_set(journal_t *j, journal_superblock_t *sb)
  * Helper function used to manage commit timeouts
  */
 
-static void commit_timeout(unsigned long __data)
+static void commit_timeout(struct timer_list *t)
 {
-	struct task_struct * p = (struct task_struct *) __data;
+	journal_t *journal = from_timer(journal, t, j_commit_timer);
 
-	wake_up_process(p);
+	wake_up_process(journal->j_task);
 }
 
 /*
@@ -197,8 +197,7 @@ static int kjournald2(void *arg)
 	 * Set up an interval timer which can be used to trigger a commit wakeup
 	 * after the commit interval expires
 	 */
-	setup_timer(&journal->j_commit_timer, commit_timeout,
-			(unsigned long)current);
+	timer_setup(&journal->j_commit_timer, commit_timeout, 0);
 
 	set_freezable();
 
diff --git a/fs/jffs2/Makefile b/fs/jffs2/Makefile
index 60e5d49ca03e..5294969d5bf9 100644
--- a/fs/jffs2/Makefile
+++ b/fs/jffs2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Journalling Flash File System v2 (JFFS2)
 #
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 76fa814df3d1..e96c6b05e43e 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -395,14 +395,14 @@ int jffs2_do_remount_fs(struct super_block *sb, int *flags, char *data)
 {
 	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
 
-	if (c->flags & JFFS2_SB_FLAG_RO && !(sb->s_flags & MS_RDONLY))
+	if (c->flags & JFFS2_SB_FLAG_RO && !sb_rdonly(sb))
 		return -EROFS;
 
 	/* We stop if it was running, then restart if it needs to.
 	   This also catches the case where it was stopped and this
 	   is just a remount to restart it.
 	   Flush the writebuffer, if neccecary, else we loose it */
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		jffs2_stop_garbage_collect_thread(c);
 		mutex_lock(&c->alloc_sem);
 		jffs2_flush_wbuf_pad(c);
@@ -590,7 +590,7 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_blocksize = PAGE_SIZE;
 	sb->s_blocksize_bits = PAGE_SHIFT;
 	sb->s_magic = JFFS2_SUPER_MAGIC;
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		jffs2_start_garbage_collect_thread(c);
 	return 0;
 
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 5ef21f4c4c77..153f1c6eb169 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -342,7 +342,7 @@ static void jffs2_put_super (struct super_block *sb)
 static void jffs2_kill_sb(struct super_block *sb)
 {
 	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		jffs2_stop_garbage_collect_thread(c);
 	kill_mtd_super(sb);
 	kfree(c);
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index 48d9522e209c..2cfe487708e0 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -1162,7 +1162,7 @@ static void delayed_wbuf_sync(struct work_struct *work)
 	struct jffs2_sb_info *c = work_to_sb(work);
 	struct super_block *sb = OFNI_BS_2SFFJ(c);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		jffs2_dbg(1, "%s()\n", __func__);
 		jffs2_flush_wbuf_gc(c, 0);
 	}
@@ -1173,7 +1173,7 @@ void jffs2_dirty_trigger(struct jffs2_sb_info *c)
 	struct super_block *sb = OFNI_BS_2SFFJ(c);
 	unsigned long delay;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	delay = msecs_to_jiffies(dirty_writeback_interval * 10);
diff --git a/fs/jfs/Makefile b/fs/jfs/Makefile
index d20d4737b3ef..285ec189ed5c 100644
--- a/fs/jfs/Makefile
+++ b/fs/jfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux JFS filesystem routines.
 #
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index 5c5ac5b3aec3..ba34dae8bd9f 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/jfs/ioctl.c
  *
diff --git a/fs/jfs/jfs_metapage.c b/fs/jfs/jfs_metapage.c
index 1c4b9ad4d7ab..1a3b0cc22ad3 100644
--- a/fs/jfs/jfs_metapage.c
+++ b/fs/jfs/jfs_metapage.c
@@ -663,6 +663,8 @@ struct metapage *__get_metapage(struct inode *inode, unsigned long lblock,
 	} else {
 		INCREMENT(mpStat.pagealloc);
 		mp = alloc_metapage(GFP_NOFS);
+		if (!mp)
+			goto unlock;
 		mp->page = page;
 		mp->sb = inode->i_sb;
 		mp->flag = 0;
diff --git a/fs/jfs/jfs_mount.c b/fs/jfs/jfs_mount.c
index 9895595fd2f2..d8658607bf46 100644
--- a/fs/jfs/jfs_mount.c
+++ b/fs/jfs/jfs_mount.c
@@ -362,7 +362,7 @@ static int chkSuper(struct super_block *sb)
 
 	/* validate fs state */
 	if (j_sb->s_state != cpu_to_le32(FM_CLEAN) &&
-	    !(sb->s_flags & MS_RDONLY)) {
+	    !sb_rdonly(sb)) {
 		jfs_err("jfs_mount: Mount Failure: File System Dirty.");
 		rc = -EINVAL;
 		goto out;
diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 60726ae7cf26..2f7b3af5b8b7 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -76,7 +76,7 @@ static void jfs_handle_error(struct super_block *sb)
 {
 	struct jfs_sb_info *sbi = JFS_SBI(sb);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	updateSuper(sb, FM_DIRTY);
@@ -468,7 +468,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 		return -EINVAL;
 
 	if (newLVSize) {
-		if (sb->s_flags & MS_RDONLY) {
+		if (sb_rdonly(sb)) {
 			pr_err("JFS: resize requires volume to be mounted read-write\n");
 			return -EROFS;
 		}
@@ -477,7 +477,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 			return rc;
 	}
 
-	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
+	if (sb_rdonly(sb) && !(*flags & MS_RDONLY)) {
 		/*
 		 * Invalidate any previously read metadata.  fsck may have
 		 * changed the on-disk data since we mounted r/o
@@ -493,7 +493,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 		dquot_resume(sb, -1);
 		return ret;
 	}
-	if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb) && (*flags & MS_RDONLY)) {
 		rc = dquot_suspend(sb, -1);
 		if (rc < 0)
 			return rc;
@@ -502,7 +502,7 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 		return rc;
 	}
 	if ((JFS_SBI(sb)->flag & JFS_NOINTEGRITY) != (flag & JFS_NOINTEGRITY))
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			rc = jfs_umount_rw(sb);
 			if (rc)
 				return rc;
@@ -592,7 +592,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 			jfs_err("jfs_mount failed w/return code = %d", rc);
 		goto out_mount_failed;
 	}
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		sbi->log = NULL;
 	else {
 		rc = jfs_mount_rw(sb, 0);
@@ -652,7 +652,7 @@ static int jfs_freeze(struct super_block *sb)
 	struct jfs_log *log = sbi->log;
 	int rc = 0;
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		txQuiesce(sb);
 		rc = lmLogShutdown(log);
 		if (rc) {
@@ -682,7 +682,7 @@ static int jfs_unfreeze(struct super_block *sb)
 	struct jfs_log *log = sbi->log;
 	int rc = 0;
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		rc = updateSuper(sb, FM_MOUNT);
 		if (rc) {
 			jfs_error(sb, "updateSuper failed\n");
@@ -853,7 +853,6 @@ out:
 	}
 	if (inode->i_size < off+len-towrite)
 		i_size_write(inode, off+len-towrite);
-	inode->i_version++;
 	inode->i_mtime = inode->i_ctime = current_time(inode);
 	mark_inode_dirty(inode);
 	inode_unlock(inode);
diff --git a/fs/lockd/Makefile b/fs/lockd/Makefile
index 9b320cc2a8cf..6d5e83ed4476 100644
--- a/fs/lockd/Makefile
+++ b/fs/lockd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux lock manager stuff
 #
diff --git a/fs/lockd/clnt4xdr.c b/fs/lockd/clnt4xdr.c
index c349fc0f9b80..00d5ef5f99f7 100644
--- a/fs/lockd/clnt4xdr.c
+++ b/fs/lockd/clnt4xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/clnt4xdr.c
  *
diff --git a/fs/lockd/clntxdr.c b/fs/lockd/clntxdr.c
index 3b4724a6c4ee..2c6176387143 100644
--- a/fs/lockd/clntxdr.c
+++ b/fs/lockd/clntxdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/clntxdr.c
  *
diff --git a/fs/lockd/host.c b/fs/lockd/host.c
index d716c9993a26..0d4e590e0549 100644
--- a/fs/lockd/host.c
+++ b/fs/lockd/host.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/host.c
  *
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 9d8166c39c54..9fbbd11f9ecb 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/mon.c
  *
diff --git a/fs/lockd/netns.h b/fs/lockd/netns.h
index fb8cac88251a..5bec78c8e431 100644
--- a/fs/lockd/netns.h
+++ b/fs/lockd/netns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LOCKD_NETNS_H__
 #define __LOCKD_NETNS_H__
 
diff --git a/fs/lockd/procfs.c b/fs/lockd/procfs.c
index 8f72cb237ef3..ca9228a56d65 100644
--- a/fs/lockd/procfs.c
+++ b/fs/lockd/procfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Procfs support for lockd
  *
diff --git a/fs/lockd/procfs.h b/fs/lockd/procfs.h
index 184a15edd18d..ba9a82f4ce28 100644
--- a/fs/lockd/procfs.h
+++ b/fs/lockd/procfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Procfs support for lockd
  *
diff --git a/fs/lockd/svc4proc.c b/fs/lockd/svc4proc.c
index 82925f17ec45..1bddf70d9656 100644
--- a/fs/lockd/svc4proc.c
+++ b/fs/lockd/svc4proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/svc4proc.c
  *
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index 3507c80d1d4b..3701bccab478 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/svclock.c
  *
diff --git a/fs/lockd/svcproc.c b/fs/lockd/svcproc.c
index 07915162581d..0d670c5c378f 100644
--- a/fs/lockd/svcproc.c
+++ b/fs/lockd/svcproc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/svcproc.c
  *
diff --git a/fs/lockd/svcshare.c b/fs/lockd/svcshare.c
index b0ae07008700..ade4931b2da2 100644
--- a/fs/lockd/svcshare.c
+++ b/fs/lockd/svcshare.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/svcshare.c
  *
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index 442bbd0b0b29..7147e4aebecc 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/xdr.c
  *
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index 2a0cd5679c49..7ed9edf9aed4 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/lockd/xdr4.c
  *
diff --git a/fs/minix/bitmap.c b/fs/minix/bitmap.c
index c2c3fd3277b5..f4e5e5181a14 100644
--- a/fs/minix/bitmap.c
+++ b/fs/minix/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/minix/bitmap.c
  *
diff --git a/fs/minix/dir.c b/fs/minix/dir.c
index baa9721f1299..dcfe5b25378b 100644
--- a/fs/minix/dir.c
+++ b/fs/minix/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/minix/dir.c
  *
diff --git a/fs/minix/file.c b/fs/minix/file.c
index a6a4797aa0d4..c50b0a20fcd9 100644
--- a/fs/minix/file.c
+++ b/fs/minix/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/minix/file.c
  *
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index 6ac76b0434e9..b6829d679643 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -42,7 +42,7 @@ static void minix_put_super(struct super_block *sb)
 	int i;
 	struct minix_sb_info *sbi = minix_sb(sb);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		if (sbi->s_version != MINIX_V3)	 /* s_state is now out from V3 sb */
 			sbi->s_ms->s_state = sbi->s_mount_state;
 		mark_buffer_dirty(sbi->s_sbh);
@@ -125,7 +125,7 @@ static int minix_remount (struct super_block * sb, int * flags, char * data)
 
 	sync_filesystem(sb);
 	ms = sbi->s_ms;
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		return 0;
 	if (*flags & MS_RDONLY) {
 		if (ms->s_state & MINIX_VALID_FS ||
@@ -293,7 +293,7 @@ static int minix_fill_super(struct super_block *s, void *data, int silent)
 	if (!s->s_root)
 		goto out_no_root;
 
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 		if (sbi->s_version != MINIX_V3) /* s_state is now out from V3 sb */
 			ms->s_state &= ~MINIX_VALID_FS;
 		mark_buffer_dirty(bh);
diff --git a/fs/minix/itree_common.c b/fs/minix/itree_common.c
index 2d1ca08870f7..043c3fdbc8e7 100644
--- a/fs/minix/itree_common.c
+++ b/fs/minix/itree_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Generic part */
 
 typedef struct {
diff --git a/fs/minix/itree_v1.c b/fs/minix/itree_v1.c
index 46ca39d6c735..046cc96ee7ad 100644
--- a/fs/minix/itree_v1.c
+++ b/fs/minix/itree_v1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/buffer_head.h>
 #include <linux/slab.h>
 #include "minix.h"
diff --git a/fs/minix/itree_v2.c b/fs/minix/itree_v2.c
index 1ee101352586..f7fc7ecccccc 100644
--- a/fs/minix/itree_v2.c
+++ b/fs/minix/itree_v2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/buffer_head.h>
 #include "minix.h"
 
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index 663d66138d06..df081e8afcc3 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_MINIX_H
 #define FS_MINIX_H
 
diff --git a/fs/minix/namei.c b/fs/minix/namei.c
index 1e0f11f5dac9..ccf0f00030bf 100644
--- a/fs/minix/namei.c
+++ b/fs/minix/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/minix/namei.c
  *
diff --git a/fs/mount.h b/fs/mount.h
index 6790767d1883..f39bc9da4d73 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/mount.h>
 #include <linux/seq_file.h>
 #include <linux/poll.h>
diff --git a/fs/mpage.c b/fs/mpage.c
index 37bb77c1302c..b7e7f570733a 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fs/mpage.c
  *
@@ -468,6 +469,16 @@ static void clean_buffers(struct page *page, unsigned first_unmapped)
 		try_to_free_buffers(page);
 }
 
+/*
+ * For situations where we want to clean all buffers attached to a page.
+ * We don't need to calculate how many buffers are attached to the page,
+ * we just need to specify a number larger than the maximum number of buffers.
+ */
+void clean_page_buffers(struct page *page)
+{
+	clean_buffers(page, ~0U);
+}
+
 static int __mpage_writepage(struct page *page, struct writeback_control *wbc,
 		      void *data)
 {
@@ -605,10 +616,8 @@ alloc_new:
 	if (bio == NULL) {
 		if (first_unmapped == blocks_per_page) {
 			if (!bdev_write_page(bdev, blocks[0] << (blkbits - 9),
-								page, wbc)) {
-				clean_buffers(page, first_unmapped);
+								page, wbc))
 				goto out;
-			}
 		}
 		bio = mpage_alloc(bdev, blocks[0] << (blkbits - 9),
 				BIO_MAX_PAGES, GFP_NOFS|__GFP_HIGH);
diff --git a/fs/namei.c b/fs/namei.c
index 1180f9c58093..5424b10cfdc4 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/namei.c
  *
@@ -447,8 +448,7 @@ static int sb_permission(struct super_block *sb, struct inode *inode, int mask)
 		umode_t mode = inode->i_mode;
 
 		/* Nobody gets write access to a read-only fs. */
-		if ((sb->s_flags & MS_RDONLY) &&
-		    (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
+		if (sb_rdonly(sb) && (S_ISREG(mode) || S_ISDIR(mode) || S_ISLNK(mode)))
 			return -EROFS;
 	}
 	return 0;
@@ -1210,7 +1210,7 @@ static int follow_managed(struct path *path, struct nameidata *nd)
 	/* Given that we're not holding a lock here, we retain the value in a
 	 * local variable for each dentry as we look at it so that we don't see
 	 * the components of that value change under us */
-	while (managed = ACCESS_ONCE(path->dentry->d_flags),
+	while (managed = READ_ONCE(path->dentry->d_flags),
 	       managed &= DCACHE_MANAGED_DENTRY,
 	       unlikely(managed != 0)) {
 		/* Allow the filesystem to manage the transit without i_mutex
@@ -1395,7 +1395,7 @@ int follow_down(struct path *path)
 	unsigned managed;
 	int ret;
 
-	while (managed = ACCESS_ONCE(path->dentry->d_flags),
+	while (managed = READ_ONCE(path->dentry->d_flags),
 	       unlikely(managed & DCACHE_MANAGED_DENTRY)) {
 		/* Allow the filesystem to manage the transit without i_mutex
 		 * being held.
diff --git a/fs/namespace.c b/fs/namespace.c
index df0f7521979a..e158ec6b527b 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -275,7 +275,7 @@ int __mnt_is_readonly(struct vfsmount *mnt)
 {
 	if (mnt->mnt_flags & MNT_READONLY)
 		return 1;
-	if (mnt->mnt_sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(mnt->mnt_sb))
 		return 1;
 	return 0;
 }
@@ -353,7 +353,7 @@ int __mnt_want_write(struct vfsmount *m)
 	 * incremented count after it has set MNT_WRITE_HOLD.
 	 */
 	smp_mb();
-	while (ACCESS_ONCE(mnt->mnt.mnt_flags) & MNT_WRITE_HOLD)
+	while (READ_ONCE(mnt->mnt.mnt_flags) & MNT_WRITE_HOLD)
 		cpu_relax();
 	/*
 	 * After the slowpath clears MNT_WRITE_HOLD, mnt_is_readonly will
@@ -468,7 +468,9 @@ static inline int may_write_real(struct file *file)
 
 	/* File refers to upper, writable layer? */
 	upperdentry = d_real(dentry, NULL, 0, D_REAL_UPPER);
-	if (upperdentry && file_inode(file) == d_inode(upperdentry))
+	if (upperdentry &&
+	    (file_inode(file) == d_inode(upperdentry) ||
+	     file_inode(file) == d_inode(dentry)))
 		return 0;
 
 	/* Lower layer: can't write to real file, sorry... */
@@ -1029,7 +1031,7 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
 	if (!mnt)
 		return ERR_PTR(-ENOMEM);
 
-	if (flags & MS_KERNMOUNT)
+	if (flags & SB_KERNMOUNT)
 		mnt->mnt.mnt_flags = MNT_INTERNAL;
 
 	root = mount_fs(type, flags, name, data);
@@ -1061,7 +1063,7 @@ vfs_submount(const struct dentry *mountpoint, struct file_system_type *type,
 	if (mountpoint->d_sb->s_user_ns != &init_user_ns)
 		return ERR_PTR(-EPERM);
 
-	return vfs_kern_mount(type, MS_SUBMOUNT, name, data);
+	return vfs_kern_mount(type, SB_SUBMOUNT, name, data);
 }
 EXPORT_SYMBOL_GPL(vfs_submount);
 
@@ -1182,12 +1184,10 @@ static LLIST_HEAD(delayed_mntput_list);
 static void delayed_mntput(struct work_struct *unused)
 {
 	struct llist_node *node = llist_del_all(&delayed_mntput_list);
-	struct llist_node *next;
+	struct mount *m, *t;
 
-	for (; node; node = next) {
-		next = llist_next(node);
-		cleanup_mnt(llist_entry(node, struct mount, mnt_llist));
-	}
+	llist_for_each_entry_safe(m, t, node, mnt_llist)
+		cleanup_mnt(m);
 }
 static DECLARE_DELAYED_WORK(delayed_mntput_work, delayed_mntput);
 
@@ -1592,8 +1592,8 @@ static int do_umount(struct mount *mnt, int flags)
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
 		down_write(&sb->s_umount);
-		if (!(sb->s_flags & MS_RDONLY))
-			retval = do_remount_sb(sb, MS_RDONLY, NULL, 0);
+		if (!sb_rdonly(sb))
+			retval = do_remount_sb(sb, SB_RDONLY, NULL, 0);
 		up_write(&sb->s_umount);
 		return retval;
 	}
@@ -2117,7 +2117,7 @@ static void unlock_mount(struct mountpoint *where)
 
 static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)
 {
-	if (mnt->mnt.mnt_sb->s_flags & MS_NOUSER)
+	if (mnt->mnt.mnt_sb->s_flags & SB_NOUSER)
 		return -EINVAL;
 
 	if (d_is_dir(mp->m_dentry) !=
@@ -2131,9 +2131,9 @@ static int graft_tree(struct mount *mnt, struct mount *p, struct mountpoint *mp)
  * Sanity check the flags to change_mnt_propagation.
  */
 
-static int flags_to_propagation_type(int flags)
+static int flags_to_propagation_type(int ms_flags)
 {
-	int type = flags & ~(MS_REC | MS_SILENT);
+	int type = ms_flags & ~(MS_REC | MS_SILENT);
 
 	/* Fail if any non-propagation flags are set */
 	if (type & ~(MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
@@ -2147,18 +2147,18 @@ static int flags_to_propagation_type(int flags)
 /*
  * recursively change the type of the mountpoint.
  */
-static int do_change_type(struct path *path, int flag)
+static int do_change_type(struct path *path, int ms_flags)
 {
 	struct mount *m;
 	struct mount *mnt = real_mount(path->mnt);
-	int recurse = flag & MS_REC;
+	int recurse = ms_flags & MS_REC;
 	int type;
 	int err = 0;
 
 	if (path->dentry != path->mnt->mnt_root)
 		return -EINVAL;
 
-	type = flags_to_propagation_type(flag);
+	type = flags_to_propagation_type(ms_flags);
 	if (!type)
 		return -EINVAL;
 
@@ -2280,8 +2280,8 @@ static int change_mount_flags(struct vfsmount *mnt, int ms_flags)
  * If you've mounted a non-root directory somewhere and want to do remount
  * on it - tough luck.
  */
-static int do_remount(struct path *path, int flags, int mnt_flags,
-		      void *data)
+static int do_remount(struct path *path, int ms_flags, int sb_flags,
+		      int mnt_flags, void *data)
 {
 	int err;
 	struct super_block *sb = path->mnt->mnt_sb;
@@ -2325,12 +2325,12 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
 		return err;
 
 	down_write(&sb->s_umount);
-	if (flags & MS_BIND)
-		err = change_mount_flags(path->mnt, flags);
+	if (ms_flags & MS_BIND)
+		err = change_mount_flags(path->mnt, ms_flags);
 	else if (!capable(CAP_SYS_ADMIN))
 		err = -EPERM;
 	else
-		err = do_remount_sb(sb, flags, data, 0);
+		err = do_remount_sb(sb, sb_flags, data, 0);
 	if (!err) {
 		lock_mount_hash();
 		mnt_flags |= mnt->mnt.mnt_flags & ~MNT_USER_SETTABLE_MASK;
@@ -2495,7 +2495,7 @@ static bool mount_too_revealing(struct vfsmount *mnt, int *new_mnt_flags);
  * create a new mount for userspace and request it to be added into the
  * namespace's tree
  */
-static int do_new_mount(struct path *path, const char *fstype, int flags,
+static int do_new_mount(struct path *path, const char *fstype, int sb_flags,
 			int mnt_flags, const char *name, void *data)
 {
 	struct file_system_type *type;
@@ -2509,7 +2509,7 @@ static int do_new_mount(struct path *path, const char *fstype, int flags,
 	if (!type)
 		return -ENODEV;
 
-	mnt = vfs_kern_mount(type, flags, name, data);
+	mnt = vfs_kern_mount(type, sb_flags, name, data);
 	if (!IS_ERR(mnt) && (type->fs_flags & FS_HAS_SUBTYPE) &&
 	    !mnt->mnt_sb->s_subtype)
 		mnt = fs_set_subtype(mnt, fstype);
@@ -2764,8 +2764,8 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 		const char *type_page, unsigned long flags, void *data_page)
 {
 	struct path path;
+	unsigned int mnt_flags = 0, sb_flags;
 	int retval = 0;
-	int mnt_flags = 0;
 
 	/* Discard magic */
 	if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
@@ -2775,6 +2775,9 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 	if (data_page)
 		((char *)data_page)[PAGE_SIZE - 1] = 0;
 
+	if (flags & MS_NOUSER)
+		return -EINVAL;
+
 	/* ... and get the mountpoint */
 	retval = user_path(dir_name, &path);
 	if (retval)
@@ -2784,7 +2787,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 				   type_page, flags, data_page);
 	if (!retval && !may_mount())
 		retval = -EPERM;
-	if (!retval && (flags & MS_MANDLOCK) && !may_mandlock())
+	if (!retval && (flags & SB_MANDLOCK) && !may_mandlock())
 		retval = -EPERM;
 	if (retval)
 		goto dput_out;
@@ -2806,7 +2809,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 		mnt_flags |= MNT_NODIRATIME;
 	if (flags & MS_STRICTATIME)
 		mnt_flags &= ~(MNT_RELATIME | MNT_NOATIME);
-	if (flags & MS_RDONLY)
+	if (flags & SB_RDONLY)
 		mnt_flags |= MNT_READONLY;
 
 	/* The default atime for remount is preservation */
@@ -2817,12 +2820,16 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 		mnt_flags |= path.mnt->mnt_flags & MNT_ATIME_MASK;
 	}
 
-	flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE | MS_BORN |
-		   MS_NOATIME | MS_NODIRATIME | MS_RELATIME| MS_KERNMOUNT |
-		   MS_STRICTATIME | MS_NOREMOTELOCK | MS_SUBMOUNT);
+	sb_flags = flags & (SB_RDONLY |
+			    SB_SYNCHRONOUS |
+			    SB_MANDLOCK |
+			    SB_DIRSYNC |
+			    SB_SILENT |
+			    SB_POSIXACL |
+			    SB_I_VERSION);
 
 	if (flags & MS_REMOUNT)
-		retval = do_remount(&path, flags & ~MS_REMOUNT, mnt_flags,
+		retval = do_remount(&path, flags, sb_flags, mnt_flags,
 				    data_page);
 	else if (flags & MS_BIND)
 		retval = do_loopback(&path, dev_name, flags & MS_REC);
@@ -2831,7 +2838,7 @@ long do_mount(const char *dev_name, const char __user *dir_name,
 	else if (flags & MS_MOVE)
 		retval = do_move_mount(&path, dev_name);
 	else
-		retval = do_new_mount(&path, type_page, flags, mnt_flags,
+		retval = do_new_mount(&path, type_page, sb_flags, mnt_flags,
 				      dev_name, data_page);
 dput_out:
 	path_put(&path);
@@ -3281,7 +3288,7 @@ void put_mnt_ns(struct mnt_namespace *ns)
 struct vfsmount *kern_mount_data(struct file_system_type *type, void *data)
 {
 	struct vfsmount *mnt;
-	mnt = vfs_kern_mount(type, MS_KERNMOUNT, type->name, data);
+	mnt = vfs_kern_mount(type, SB_KERNMOUNT, type->name, data);
 	if (!IS_ERR(mnt)) {
 		/*
 		 * it is a longterm mount, don't release mnt until
@@ -3358,7 +3365,7 @@ static bool mnt_already_visible(struct mnt_namespace *ns, struct vfsmount *new,
 		mnt_flags = mnt->mnt.mnt_flags;
 
 		/* Don't miss readonly hidden in the superblock flags */
-		if (mnt->mnt.mnt_sb->s_flags & MS_RDONLY)
+		if (sb_rdonly(mnt->mnt.mnt_sb))
 			mnt_flags |= MNT_LOCK_READONLY;
 
 		/* Verify the mount flags are equal to or more permissive
diff --git a/fs/ncpfs/Makefile b/fs/ncpfs/Makefile
index c66af563f2ce..66fe5f878817 100644
--- a/fs/ncpfs/Makefile
+++ b/fs/ncpfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux ncp filesystem routines.
 #
diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 088f52484d6e..0c57c5c5d40a 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  dir.c
  *
@@ -119,10 +120,6 @@ static inline int ncp_case_sensitive(const struct inode *i)
 /*
  * Note: leave the hash unchanged if the directory
  * is case-sensitive.
- *
- * Accessing the parent inode can be racy under RCU pathwalking.
- * Use ACCESS_ONCE() to make sure we use _one_ particular inode,
- * the callers will handle races.
  */
 static int 
 ncp_hash_dentry(const struct dentry *dentry, struct qstr *this)
@@ -147,11 +144,6 @@ ncp_hash_dentry(const struct dentry *dentry, struct qstr *this)
 	return 0;
 }
 
-/*
- * Accessing the parent inode can be racy under RCU pathwalking.
- * Use ACCESS_ONCE() to make sure we use _one_ particular inode,
- * the callers will handle races.
- */
 static int
 ncp_compare_dentry(const struct dentry *dentry,
 		unsigned int len, const char *str, const struct qstr *name)
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
index a06c07619ee6..8f8cc0334ddd 100644
--- a/fs/ncpfs/file.c
+++ b/fs/ncpfs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  file.c
  *
diff --git a/fs/ncpfs/getopt.c b/fs/ncpfs/getopt.c
index 344889cd120e..5c941bef14c4 100644
--- a/fs/ncpfs/getopt.c
+++ b/fs/ncpfs/getopt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * getopt.c
  */
diff --git a/fs/ncpfs/getopt.h b/fs/ncpfs/getopt.h
index cccc007dcaf9..30f0da317670 100644
--- a/fs/ncpfs/getopt.h
+++ b/fs/ncpfs/getopt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GETOPT_H
 #define _LINUX_GETOPT_H
 
diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 6d0f14c86099..129f1937fa2c 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -618,7 +618,7 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
 	server->tx.creq		= NULL;
 	server->rcv.creq	= NULL;
 
-	init_timer(&server->timeout_tm);
+	timer_setup(&server->timeout_tm, ncpdgram_timeout_call, 0);
 #undef NCP_PACKET_SIZE
 #define NCP_PACKET_SIZE 131072
 	error = -ENOMEM;
@@ -650,8 +650,6 @@ static int ncp_fill_super(struct super_block *sb, void *raw_data, int silent)
 	} else {
 		INIT_WORK(&server->rcv.tq, ncpdgram_rcv_proc);
 		INIT_WORK(&server->timeout_tq, ncpdgram_timeout_proc);
-		server->timeout_tm.data = (unsigned long)server;
-		server->timeout_tm.function = ncpdgram_timeout_call;
 	}
 	release_sock(sock->sk);
 
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index 12550c2320cc..d378b98cd7b6 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  ioctl.c
  *
diff --git a/fs/ncpfs/mmap.c b/fs/ncpfs/mmap.c
index 6719c0be674d..a5c5cf2ff007 100644
--- a/fs/ncpfs/mmap.c
+++ b/fs/ncpfs/mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  mmap.c
  *
diff --git a/fs/ncpfs/ncp_fs.h b/fs/ncpfs/ncp_fs.h
index b9f69e1b1f43..bdd262b6c198 100644
--- a/fs/ncpfs/ncp_fs.h
+++ b/fs/ncpfs/ncp_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/ncp_fs.h>
 #include "ncp_fs_i.h"
 #include "ncp_fs_sb.h"
diff --git a/fs/ncpfs/ncp_fs_i.h b/fs/ncpfs/ncp_fs_i.h
index c4794504f843..3432bafb53a5 100644
--- a/fs/ncpfs/ncp_fs_i.h
+++ b/fs/ncpfs/ncp_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ncp_fs_i.h
  *
diff --git a/fs/ncpfs/ncp_fs_sb.h b/fs/ncpfs/ncp_fs_sb.h
index 366fd63cc506..f06cde4adf71 100644
--- a/fs/ncpfs/ncp_fs_sb.h
+++ b/fs/ncpfs/ncp_fs_sb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ncp_fs_sb.h
  *
@@ -149,7 +150,7 @@ extern void ncp_tcp_rcv_proc(struct work_struct *work);
 extern void ncp_tcp_tx_proc(struct work_struct *work);
 extern void ncpdgram_rcv_proc(struct work_struct *work);
 extern void ncpdgram_timeout_proc(struct work_struct *work);
-extern void ncpdgram_timeout_call(unsigned long server);
+extern void ncpdgram_timeout_call(struct timer_list *t);
 extern void ncp_tcp_data_ready(struct sock* sk);
 extern void ncp_tcp_write_space(struct sock* sk);
 extern void ncp_tcp_error_report(struct sock* sk);
diff --git a/fs/ncpfs/ncplib_kernel.c b/fs/ncpfs/ncplib_kernel.c
index 88dbbc9fcf4d..804adfebba2f 100644
--- a/fs/ncpfs/ncplib_kernel.c
+++ b/fs/ncpfs/ncplib_kernel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  ncplib_kernel.c
  *
diff --git a/fs/ncpfs/ncplib_kernel.h b/fs/ncpfs/ncplib_kernel.h
index b4c87cfcee95..aaae8aa9bf7d 100644
--- a/fs/ncpfs/ncplib_kernel.h
+++ b/fs/ncpfs/ncplib_kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ncplib_kernel.h
  *
diff --git a/fs/ncpfs/ncpsign_kernel.c b/fs/ncpfs/ncpsign_kernel.c
index 08907599dcd2..8085b1a3ba47 100644
--- a/fs/ncpfs/ncpsign_kernel.c
+++ b/fs/ncpfs/ncpsign_kernel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  ncpsign_kernel.c
  *
diff --git a/fs/ncpfs/ncpsign_kernel.h b/fs/ncpfs/ncpsign_kernel.h
index d9a1438bb1f6..57ff0a0650b8 100644
--- a/fs/ncpfs/ncpsign_kernel.h
+++ b/fs/ncpfs/ncpsign_kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ncpsign_kernel.h
  *
diff --git a/fs/ncpfs/sock.c b/fs/ncpfs/sock.c
index 98b6db0ed63e..efb176b1751a 100644
--- a/fs/ncpfs/sock.c
+++ b/fs/ncpfs/sock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ncpfs/sock.c
  *
@@ -116,10 +117,10 @@ void ncp_tcp_write_space(struct sock *sk)
 		schedule_work(&server->tx.tq);
 }
 
-void ncpdgram_timeout_call(unsigned long v)
+void ncpdgram_timeout_call(struct timer_list *t)
 {
-	struct ncp_server *server = (void*)v;
-	
+	struct ncp_server *server = from_timer(server, t, timeout_tm);
+
 	schedule_work(&server->timeout_tq);
 }
 
diff --git a/fs/ncpfs/symlink.c b/fs/ncpfs/symlink.c
index a6d26b46fc05..b6e16da4837a 100644
--- a/fs/ncpfs/symlink.c
+++ b/fs/ncpfs/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ncpfs/symlink.c
  *
diff --git a/fs/nfs/Makefile b/fs/nfs/Makefile
index 1fb118902d57..c587e3c4c6a6 100644
--- a/fs/nfs/Makefile
+++ b/fs/nfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux nfs filesystem routines.
 #
diff --git a/fs/nfs/blocklayout/dev.c b/fs/nfs/blocklayout/dev.c
index a69ef4e9c24c..95f74bd2c067 100644
--- a/fs/nfs/blocklayout/dev.c
+++ b/fs/nfs/blocklayout/dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014-2016 Christoph Hellwig.
  */
diff --git a/fs/nfs/blocklayout/extent_tree.c b/fs/nfs/blocklayout/extent_tree.c
index c85fbfd2d0d9..7a57ff2528af 100644
--- a/fs/nfs/blocklayout/extent_tree.c
+++ b/fs/nfs/blocklayout/extent_tree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014-2016 Christoph Hellwig.
  */
diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
index 2ae676f93e6b..b60627bcfc62 100644
--- a/fs/nfs/cache_lib.c
+++ b/fs/nfs/cache_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/cache_lib.c
  *
diff --git a/fs/nfs/cache_lib.h b/fs/nfs/cache_lib.h
index 4116d2c3f52f..4e6236a86cf7 100644
--- a/fs/nfs/cache_lib.h
+++ b/fs/nfs/cache_lib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Helper routines for the NFS client caches
  *
diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 2cddf7f437e6..cd9d992feb2e 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/callback.c
  *
diff --git a/fs/nfs/callback.h b/fs/nfs/callback.h
index 3dc54d7cb19c..a20a0bce40a4 100644
--- a/fs/nfs/callback.h
+++ b/fs/nfs/callback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/nfs/callback.h
  *
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 14358de173fb..19151f6c0e97 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/callback_proc.c
  *
diff --git a/fs/nfs/callback_xdr.c b/fs/nfs/callback_xdr.c
index 681dd642f119..123c069429a7 100644
--- a/fs/nfs/callback_xdr.c
+++ b/fs/nfs/callback_xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/callback_xdr.c
  *
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index efebe6cf4378..22880ef6d8dd 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -218,7 +218,6 @@ static void nfs_cb_idr_remove_locked(struct nfs_client *clp)
 static void pnfs_init_server(struct nfs_server *server)
 {
 	rpc_init_wait_queue(&server->roc_rpcwaitq, "pNFS ROC");
-	rpc_init_wait_queue(&server->uoc_rpcwaitq, "NFS UOC");
 }
 
 #else
@@ -888,6 +887,7 @@ struct nfs_server *nfs_alloc_server(void)
 	ida_init(&server->openowner_id);
 	ida_init(&server->lockowner_id);
 	pnfs_init_server(server);
+	rpc_init_wait_queue(&server->uoc_rpcwaitq, "NFS UOC");
 
 	return server;
 }
diff --git a/fs/nfs/delegation.h b/fs/nfs/delegation.h
index e9d555796873..ddaf2644cf13 100644
--- a/fs/nfs/delegation.h
+++ b/fs/nfs/delegation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/nfs/delegation.h
  *
diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 5ceaeb1f6fb6..f439f1c45008 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1081,7 +1081,7 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 	int error;
 
 	if (flags & LOOKUP_RCU) {
-		parent = ACCESS_ONCE(dentry->d_parent);
+		parent = READ_ONCE(dentry->d_parent);
 		dir = d_inode_rcu(parent);
 		if (!dir)
 			return -ECHILD;
@@ -1168,7 +1168,7 @@ out_set_verifier:
 	nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
  out_valid:
 	if (flags & LOOKUP_RCU) {
-		if (parent != ACCESS_ONCE(dentry->d_parent))
+		if (parent != READ_ONCE(dentry->d_parent))
 			return -ECHILD;
 	} else
 		dput(parent);
@@ -1582,7 +1582,7 @@ static int nfs4_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 		struct inode *dir;
 
 		if (flags & LOOKUP_RCU) {
-			parent = ACCESS_ONCE(dentry->d_parent);
+			parent = READ_ONCE(dentry->d_parent);
 			dir = d_inode_rcu(parent);
 			if (!dir)
 				return -ECHILD;
@@ -1596,7 +1596,7 @@ static int nfs4_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 			ret = -ECHILD;
 		if (!(flags & LOOKUP_RCU))
 			dput(parent);
-		else if (parent != ACCESS_ONCE(dentry->d_parent))
+		else if (parent != READ_ONCE(dentry->d_parent))
 			return -ECHILD;
 		goto out;
 	}
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index d25f10fb4926..060c658eab66 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/dns_resolve.c
  *
diff --git a/fs/nfs/dns_resolve.h b/fs/nfs/dns_resolve.h
index 2e4f596d2923..576ff4b54c82 100644
--- a/fs/nfs/dns_resolve.h
+++ b/fs/nfs/dns_resolve.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Resolve DNS hostnames into valid ip addresses
  */
diff --git a/fs/nfs/export.c b/fs/nfs/export.c
index 249cb96cc5b5..83fd09fc8f77 100644
--- a/fs/nfs/export.c
+++ b/fs/nfs/export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015, Primary Data, Inc. All rights reserved.
  *
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index a385d1c3f146..0214dd1e1060 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -208,21 +208,19 @@ EXPORT_SYMBOL_GPL(nfs_file_mmap);
  * fall back to doing a synchronous write.
  */
 static int
-nfs_file_fsync_commit(struct file *file, loff_t start, loff_t end, int datasync)
+nfs_file_fsync_commit(struct file *file, int datasync)
 {
 	struct nfs_open_context *ctx = nfs_file_open_context(file);
 	struct inode *inode = file_inode(file);
-	int have_error, do_resend, status;
+	int do_resend, status;
 	int ret = 0;
 
 	dprintk("NFS: fsync file(%pD2) datasync %d\n", file, datasync);
 
 	nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
 	do_resend = test_and_clear_bit(NFS_CONTEXT_RESEND_WRITES, &ctx->flags);
-	have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
 	status = nfs_commit_inode(inode, FLUSH_SYNC);
-	have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
-	if (have_error) {
+	if (test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags)) {
 		ret = xchg(&ctx->error, 0);
 		if (ret)
 			goto out;
@@ -247,10 +245,16 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	trace_nfs_fsync_enter(inode);
 
 	do {
+		struct nfs_open_context *ctx = nfs_file_open_context(file);
 		ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+		if (test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags)) {
+			int ret2 = xchg(&ctx->error, 0);
+			if (ret2)
+				ret = ret2;
+		}
 		if (ret != 0)
 			break;
-		ret = nfs_file_fsync_commit(file, start, end, datasync);
+		ret = nfs_file_fsync_commit(file, datasync);
 		if (!ret)
 			ret = pnfs_sync_inode(inode, !!datasync);
 		/*
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 44c638b7876c..508126eb49f9 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -745,7 +745,8 @@ filelayout_free_lseg(struct pnfs_layout_segment *lseg)
 	struct nfs4_filelayout_segment *fl = FILELAYOUT_LSEG(lseg);
 
 	dprintk("--> %s\n", __func__);
-	nfs4_fl_put_deviceid(fl->dsaddr);
+	if (fl->dsaddr != NULL)
+		nfs4_fl_put_deviceid(fl->dsaddr);
 	/* This assumes a single RW lseg */
 	if (lseg->pls_range.iomode == IOMODE_RW) {
 		struct nfs4_filelayout *flo;
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h
index 98b34c9b0564..679cb087ef3f 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.h
+++ b/fs/nfs/flexfilelayout/flexfilelayout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFSv4 flexfile layout driver data structures.
  *
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index f32c58bbe556..d62279d3fc5d 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Device operations for the pnfs nfs4 file layout driver.
  *
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 68cc22083639..f9a4a5524bd5 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFS internal definitions
  */
@@ -768,3 +769,10 @@ static inline bool nfs_error_is_fatal(int err)
 		return false;
 	}
 }
+
+static inline void nfs_context_set_write_error(struct nfs_open_context *ctx, int error)
+{
+	ctx->error = error;
+	smp_wmb();
+	set_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
+}
diff --git a/fs/nfs/io.c b/fs/nfs/io.c
index 1fc5d1ce327e..20fef85d2bb1 100644
--- a/fs/nfs/io.c
+++ b/fs/nfs/io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016 Trond Myklebust
  *
diff --git a/fs/nfs/iostat.h b/fs/nfs/iostat.h
index 0cb806fbd4c4..2ddaab1ac653 100644
--- a/fs/nfs/iostat.h
+++ b/fs/nfs/iostat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/fs/nfs/iostat.h
  *
diff --git a/fs/nfs/mount_clnt.c b/fs/nfs/mount_clnt.c
index 60bad882c123..d979ff4fee7e 100644
--- a/fs/nfs/mount_clnt.c
+++ b/fs/nfs/mount_clnt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * In-kernel MOUNT protocol client
  *
diff --git a/fs/nfs/netns.h b/fs/nfs/netns.h
index 5fbd2bde91ba..fc9978c58265 100644
--- a/fs/nfs/netns.h
+++ b/fs/nfs/netns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFS-private data for each "struct net".  Accessed with net_generic().
  */
diff --git a/fs/nfs/nfs.h b/fs/nfs/nfs.h
index 43679df56cd0..5ba00610aede 100644
--- a/fs/nfs/nfs.h
+++ b/fs/nfs/nfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2012 Netapp, Inc. All rights reserved.
  *
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index fe68dabfbde6..85e4b4a233f9 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/nfs2xdr.c
  *
diff --git a/fs/nfs/nfs3_fs.h b/fs/nfs/nfs3_fs.h
index e134d6548ab7..f82e11c4cb56 100644
--- a/fs/nfs/nfs3_fs.h
+++ b/fs/nfs/nfs3_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2014 Anna Schumaker.
  *
diff --git a/fs/nfs/nfs3acl.c b/fs/nfs/nfs3acl.c
index 720d92f5abfb..7173a4ee862c 100644
--- a/fs/nfs/nfs3acl.c
+++ b/fs/nfs/nfs3acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/gfp.h>
 #include <linux/nfs.h>
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index d1e87ec0df84..bc673fb47fb3 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/nfs/nfs3proc.c
  *
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index e82c9e553224..6cd33bd5da87 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/nfs3xdr.c
  *
diff --git a/fs/nfs/nfs42.h b/fs/nfs/nfs42.h
index b6cd15314bab..19ec38f85ce0 100644
--- a/fs/nfs/nfs42.h
+++ b/fs/nfs/nfs42.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com>
  */
diff --git a/fs/nfs/nfs42proc.c b/fs/nfs/nfs42proc.c
index 6c2db51e67a7..9c374441f660 100644
--- a/fs/nfs/nfs42proc.c
+++ b/fs/nfs/nfs42proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com>
  */
diff --git a/fs/nfs/nfs42xdr.c b/fs/nfs/nfs42xdr.c
index 5ee1b0f0d904..5966e1e7b1f5 100644
--- a/fs/nfs/nfs42xdr.c
+++ b/fs/nfs/nfs42xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014 Anna Schumaker <Anna.Schumaker@Netapp.com>
  */
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index ac4f10b7f6c1..dcfcf7fd7438 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/fs/nfs/nfs4_fs.h
  *
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 0efba77789b9..626d1382002e 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/nfs/file.c
  *
diff --git a/fs/nfs/nfs4getroot.c b/fs/nfs/nfs4getroot.c
index ac8406018962..1a69479a3a59 100644
--- a/fs/nfs/nfs4getroot.c
+++ b/fs/nfs/nfs4getroot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
 * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
 * Written by David Howells (dhowells@redhat.com)
diff --git a/fs/nfs/nfs4idmap.c b/fs/nfs/nfs4idmap.c
index dd5d27da8c0c..30426c1a1bbd 100644
--- a/fs/nfs/nfs4idmap.c
+++ b/fs/nfs/nfs4idmap.c
@@ -274,7 +274,7 @@ static struct key *nfs_idmap_request_key(const char *name, size_t namelen,
 	ssize_t ret;
 
 	ret = nfs_idmap_get_desc(name, namelen, type, strlen(type), &desc);
-	if (ret <= 0)
+	if (ret < 0)
 		return ERR_PTR(ret);
 
 	rkey = request_key(&key_type_id_resolver, desc, "");
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 7d531da1bae3..8c3f327d858d 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/nfs4namespace.c
  *
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6c61e2b99635..f90090e8c959 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -8399,8 +8399,7 @@ nfs4_layoutget_handle_exception(struct rpc_task *task,
 		lo = NFS_I(inode)->layout;
 		/* If the open stateid was bad, then recover it. */
 		if (!lo || test_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags) ||
-		    nfs4_stateid_match_other(&lgp->args.stateid,
-					&lgp->args.ctx->state->stateid)) {
+		    !nfs4_stateid_match_other(&lgp->args.stateid, &lo->plh_stateid)) {
 			spin_unlock(&inode->i_lock);
 			exception->state = lgp->args.ctx->state;
 			exception->stateid = &lgp->args.stateid;
diff --git a/fs/nfs/nfs4session.h b/fs/nfs/nfs4session.h
index dfae4880eacb..3c550f297561 100644
--- a/fs/nfs/nfs4session.h
+++ b/fs/nfs/nfs4session.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fs/nfs/nfs4session.h
  *
diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c
index 8693d77c45ea..0d91d84e5822 100644
--- a/fs/nfs/nfs4sysctl.c
+++ b/fs/nfs/nfs4sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/nfs4sysctl.c
  *
diff --git a/fs/nfs/nfs4trace.c b/fs/nfs/nfs4trace.c
index 2850bce19244..e9fb3e50a999 100644
--- a/fs/nfs/nfs4trace.c
+++ b/fs/nfs/nfs4trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2013 Trond Myklebust <Trond.Myklebust@netapp.com>
  */
diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h
index be1da19c65d6..e7c6275519b0 100644
--- a/fs/nfs/nfs4trace.h
+++ b/fs/nfs/nfs4trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2013 Trond Myklebust <Trond.Myklebust@netapp.com>
  */
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 37c8af003275..14ed9791ec9c 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1842,8 +1842,8 @@ static void encode_create_session(struct xdr_stream *xdr,
 	 * Assumes OPEN is the biggest non-idempotent compound.
 	 * 2 is the verifier.
 	 */
-	max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE +
-			      RPC_MAX_AUTH_SIZE + 2) * XDR_UNIT;
+	max_resp_sz_cached = (NFS4_dec_open_sz + RPC_REPHDRSIZE + 2)
+				* XDR_UNIT + RPC_MAX_AUTH_SIZE;
 
 	encode_op_hdr(xdr, OP_CREATE_SESSION, decode_create_session_maxsz, hdr);
 	p = reserve_space(xdr, 16 + 2*28 + 20 + clnt->cl_nodelen + 12);
diff --git a/fs/nfs/nfsroot.c b/fs/nfs/nfsroot.c
index 89a15dbe5efc..effaa4247b91 100644
--- a/fs/nfs/nfsroot.c
+++ b/fs/nfs/nfsroot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Copyright (C) 1995, 1996  Gero Kuhlmann <gero@gkminix.han.de>
  *
diff --git a/fs/nfs/nfstrace.c b/fs/nfs/nfstrace.c
index c74f7af23d77..b60d5fbd7727 100644
--- a/fs/nfs/nfstrace.c
+++ b/fs/nfs/nfstrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2013 Trond Myklebust <Trond.Myklebust@netapp.com>
  */
diff --git a/fs/nfs/nfstrace.h b/fs/nfs/nfstrace.h
index 2ca9167bc97d..093290c42d7c 100644
--- a/fs/nfs/nfstrace.h
+++ b/fs/nfs/nfstrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2013 Trond Myklebust <Trond.Myklebust@netapp.com>
  */
@@ -719,6 +720,254 @@ TRACE_EVENT(nfs_sillyrename_unlink,
 			__get_str(name)
 		)
 );
+
+TRACE_EVENT(nfs_initiate_read,
+		TP_PROTO(
+			const struct inode *inode,
+			loff_t offset, unsigned long count
+		),
+
+		TP_ARGS(inode, offset, count),
+
+		TP_STRUCT__entry(
+			__field(loff_t, offset)
+			__field(unsigned long, count)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+		),
+
+		TP_fast_assign(
+			const struct nfs_inode *nfsi = NFS_I(inode);
+
+			__entry->offset = offset;
+			__entry->count = count;
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld count=%lu",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			__entry->offset, __entry->count
+		)
+);
+
+TRACE_EVENT(nfs_readpage_done,
+		TP_PROTO(
+			const struct inode *inode,
+			int status, loff_t offset, bool eof
+		),
+
+		TP_ARGS(inode, status, offset, eof),
+
+		TP_STRUCT__entry(
+			__field(int, status)
+			__field(loff_t, offset)
+			__field(bool, eof)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+		),
+
+		TP_fast_assign(
+			const struct nfs_inode *nfsi = NFS_I(inode);
+
+			__entry->status = status;
+			__entry->offset = offset;
+			__entry->eof = eof;
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld status=%d%s",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			__entry->offset, __entry->status,
+			__entry->eof ? " eof" : ""
+		)
+);
+
+/*
+ * XXX: I tried using NFS_UNSTABLE and friends in this table, but they
+ * all evaluate to 0 for some reason, even if I include linux/nfs.h.
+ */
+#define nfs_show_stable(stable) \
+	__print_symbolic(stable, \
+			{ 0, " (UNSTABLE)" }, \
+			{ 1, " (DATA_SYNC)" }, \
+			{ 2, " (FILE_SYNC)" })
+
+TRACE_EVENT(nfs_initiate_write,
+		TP_PROTO(
+			const struct inode *inode,
+			loff_t offset, unsigned long count,
+			enum nfs3_stable_how stable
+		),
+
+		TP_ARGS(inode, offset, count, stable),
+
+		TP_STRUCT__entry(
+			__field(loff_t, offset)
+			__field(unsigned long, count)
+			__field(enum nfs3_stable_how, stable)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+		),
+
+		TP_fast_assign(
+			const struct nfs_inode *nfsi = NFS_I(inode);
+
+			__entry->offset = offset;
+			__entry->count = count;
+			__entry->stable = stable;
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld count=%lu stable=%d%s",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			__entry->offset, __entry->count,
+			__entry->stable, nfs_show_stable(__entry->stable)
+		)
+);
+
+TRACE_EVENT(nfs_writeback_done,
+		TP_PROTO(
+			const struct inode *inode,
+			int status,
+			loff_t offset,
+			struct nfs_writeverf *writeverf
+		),
+
+		TP_ARGS(inode, status, offset, writeverf),
+
+		TP_STRUCT__entry(
+			__field(int, status)
+			__field(loff_t, offset)
+			__field(enum nfs3_stable_how, stable)
+			__field(unsigned long long, verifier)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+		),
+
+		TP_fast_assign(
+			const struct nfs_inode *nfsi = NFS_I(inode);
+
+			__entry->status = status;
+			__entry->offset = offset;
+			__entry->stable = writeverf->committed;
+			memcpy(&__entry->verifier, &writeverf->verifier,
+			       sizeof(__entry->verifier));
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld status=%d stable=%d%s "
+			"verifier 0x%016llx",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			__entry->offset, __entry->status,
+			__entry->stable, nfs_show_stable(__entry->stable),
+			__entry->verifier
+		)
+);
+
+TRACE_EVENT(nfs_initiate_commit,
+		TP_PROTO(
+			const struct nfs_commit_data *data
+		),
+
+		TP_ARGS(data),
+
+		TP_STRUCT__entry(
+			__field(loff_t, offset)
+			__field(unsigned long, count)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+		),
+
+		TP_fast_assign(
+			const struct inode *inode = data->inode;
+			const struct nfs_inode *nfsi = NFS_I(inode);
+
+			__entry->offset = data->args.offset;
+			__entry->count = data->args.count;
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld count=%lu",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			__entry->offset, __entry->count
+		)
+);
+
+TRACE_EVENT(nfs_commit_done,
+		TP_PROTO(
+			const struct nfs_commit_data *data
+		),
+
+		TP_ARGS(data),
+
+		TP_STRUCT__entry(
+			__field(int, status)
+			__field(loff_t, offset)
+			__field(unsigned long long, verifier)
+			__field(dev_t, dev)
+			__field(u32, fhandle)
+			__field(u64, fileid)
+		),
+
+		TP_fast_assign(
+			const struct inode *inode = data->inode;
+			const struct nfs_inode *nfsi = NFS_I(inode);
+
+			__entry->status = data->res.op_status;
+			__entry->offset = data->args.offset;
+			memcpy(&__entry->verifier, &data->verf.verifier,
+			       sizeof(__entry->verifier));
+			__entry->dev = inode->i_sb->s_dev;
+			__entry->fileid = nfsi->fileid;
+			__entry->fhandle = nfs_fhandle_hash(&nfsi->fh);
+		),
+
+		TP_printk(
+			"fileid=%02x:%02x:%llu fhandle=0x%08x "
+			"offset=%lld status=%d verifier 0x%016llx",
+			MAJOR(__entry->dev), MINOR(__entry->dev),
+			(unsigned long long)__entry->fileid,
+			__entry->fhandle,
+			__entry->offset, __entry->status,
+			__entry->verifier
+		)
+);
+
 #endif /* _TRACE_NFS_H */
 
 #undef TRACE_INCLUDE_PATH
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index bec120ec1967..d0543e19098a 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -1170,8 +1170,8 @@ out_failed:
 
 		/* remember fatal errors */
 		if (nfs_error_is_fatal(desc->pg_error))
-			mapping_set_error(desc->pg_inode->i_mapping,
-					  desc->pg_error);
+			nfs_context_set_write_error(req->wb_context,
+						    desc->pg_error);
 
 		func = desc->pg_completion_ops->error_cleanup;
 		for (midx = 0; midx < desc->pg_mirror_count; midx++) {
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 7879ed8ceb76..3bcd669a3152 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1664,7 +1664,7 @@ pnfs_update_layout(struct inode *ino,
 		.offset = pos,
 		.length = count,
 	};
-	unsigned pg_offset, seq;
+	unsigned pg_offset;
 	struct nfs_server *server = NFS_SERVER(ino);
 	struct nfs_client *clp = server->nfs_client;
 	struct pnfs_layout_hdr *lo = NULL;
@@ -1754,10 +1754,14 @@ lookup_again:
 		}
 
 		first = true;
-		do {
-			seq = read_seqbegin(&ctx->state->seqlock);
-			nfs4_stateid_copy(&stateid, &ctx->state->stateid);
-		} while (read_seqretry(&ctx->state->seqlock, seq));
+		if (nfs4_select_rw_stateid(ctx->state,
+					iomode == IOMODE_RW ? FMODE_WRITE : FMODE_READ,
+					NULL, &stateid, NULL) != 0) {
+			trace_pnfs_update_layout(ino, pos, count,
+					iomode, lo, lseg,
+					PNFS_UPDATE_LAYOUT_INVALID_OPEN);
+			goto out_unlock;
+		}
 	} else {
 		nfs4_stateid_copy(&stateid, &lo->plh_stateid);
 	}
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index 7962e49097c3..f7fd9192d4bc 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/nfs/proc.c
  *
diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index 0d42573d423d..48d7277c60a9 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -25,6 +25,7 @@
 #include "iostat.h"
 #include "fscache.h"
 #include "pnfs.h"
+#include "nfstrace.h"
 
 #define NFSDBG_FACILITY		NFSDBG_PAGECACHE
 
@@ -200,6 +201,7 @@ static void nfs_initiate_read(struct nfs_pgio_header *hdr,
 
 	task_setup_data->flags |= swap_flags;
 	rpc_ops->read_setup(hdr, msg);
+	trace_nfs_initiate_read(inode, hdr->io_start, hdr->good_bytes);
 }
 
 static void
@@ -232,6 +234,8 @@ static int nfs_readpage_done(struct rpc_task *task,
 		return status;
 
 	nfs_add_stats(inode, NFSIOS_SERVERREADBYTES, hdr->res.count);
+	trace_nfs_readpage_done(inode, task->tk_status,
+				hdr->args.offset, hdr->res.eof);
 
 	if (task->tk_status == -ESTALE) {
 		set_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 6b179af59b92..c9d24bae3025 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -812,7 +812,7 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
 	 * Display all mount option settings
 	 */
 	seq_printf(m, "\n\topts:\t");
-	seq_puts(m, root->d_sb->s_flags & MS_RDONLY ? "ro" : "rw");
+	seq_puts(m, sb_rdonly(root->d_sb) ? "ro" : "rw");
 	seq_puts(m, root->d_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
 	seq_puts(m, root->d_sb->s_flags & MS_NOATIME ? ",noatime" : "");
 	seq_puts(m, root->d_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
diff --git a/fs/nfs/symlink.c b/fs/nfs/symlink.c
index 5a1d0ded8979..06eb44b47885 100644
--- a/fs/nfs/symlink.c
+++ b/fs/nfs/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/nfs/symlink.c
  *
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index bb6ed810fa6f..7aea195ddb35 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/nfs/sysctl.c
  *
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index e3949d93085c..630b4a3c1a93 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/nfs/unlink.c
  *
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index f68083db63c8..babebbccae2a 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -145,13 +145,6 @@ static void nfs_io_completion_put(struct nfs_io_completion *ioc)
 		kref_put(&ioc->refcount, nfs_io_completion_release);
 }
 
-static void nfs_context_set_write_error(struct nfs_open_context *ctx, int error)
-{
-	ctx->error = error;
-	smp_wmb();
-	set_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
-}
-
 static struct nfs_page *
 nfs_page_private_request(struct page *page)
 {
@@ -1383,6 +1376,8 @@ static void nfs_initiate_write(struct nfs_pgio_header *hdr,
 
 	task_setup_data->priority = priority;
 	rpc_ops->write_setup(hdr, msg);
+	trace_nfs_initiate_write(hdr->inode, hdr->io_start, hdr->good_bytes,
+				 hdr->args.stable);
 
 	nfs4_state_protect_write(NFS_SERVER(hdr->inode)->nfs_client,
 				 &task_setup_data->rpc_client, msg, hdr);
@@ -1540,7 +1535,10 @@ static int nfs_writeback_done(struct rpc_task *task,
 	status = NFS_PROTO(inode)->write_done(task, hdr);
 	if (status != 0)
 		return status;
+
 	nfs_add_stats(inode, NFSIOS_SERVERWRITTENBYTES, hdr->res.count);
+	trace_nfs_writeback_done(inode, task->tk_status,
+				 hdr->args.offset, hdr->res.verf);
 
 	if (hdr->res.verf->committed < hdr->args.stable &&
 	    task->tk_status >= 0) {
@@ -1669,6 +1667,7 @@ int nfs_initiate_commit(struct rpc_clnt *clnt, struct nfs_commit_data *data,
 	};
 	/* Set up the initial task struct.  */
 	nfs_ops->commit_setup(data, &msg);
+	trace_nfs_initiate_commit(data);
 
 	dprintk("NFS: initiated commit call\n");
 
@@ -1793,6 +1792,7 @@ static void nfs_commit_done(struct rpc_task *task, void *calldata)
 
 	/* Call the NFS version-specific code */
 	NFS_PROTO(data->inode)->commit_done(task, data);
+	trace_nfs_commit_done(data);
 }
 
 static void nfs_commit_release_pages(struct nfs_commit_data *data)
diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index 5f5d3a76980c..2bfb58eefad1 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux nfs server
 #
diff --git a/fs/nfsd/auth.c b/fs/nfsd/auth.c
index 62469c60be23..697f8ae7792d 100644
--- a/fs/nfsd/auth.c
+++ b/fs/nfsd/auth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> */
 
 #include <linux/sched.h>
diff --git a/fs/nfsd/auth.h b/fs/nfsd/auth.h
index 53325a12ba62..dbd66424f600 100644
--- a/fs/nfsd/auth.h
+++ b/fs/nfsd/auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * nfsd-specific authentication stuff.
  *
diff --git a/fs/nfsd/blocklayout.c b/fs/nfsd/blocklayout.c
index c862c2489df0..70b8bf781fce 100644
--- a/fs/nfsd/blocklayout.c
+++ b/fs/nfsd/blocklayout.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014-2016 Christoph Hellwig.
  */
@@ -65,7 +66,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
 			bex->es = PNFS_BLOCK_READ_DATA;
 		else
 			bex->es = PNFS_BLOCK_READWRITE_DATA;
-		bex->soff = (iomap.blkno << 9);
+		bex->soff = iomap.addr;
 		break;
 	case IOMAP_UNWRITTEN:
 		if (seg->iomode & IOMODE_RW) {
@@ -78,7 +79,7 @@ nfsd4_block_proc_layoutget(struct inode *inode, const struct svc_fh *fhp,
 			}
 
 			bex->es = PNFS_BLOCK_INVALID_DATA;
-			bex->soff = (iomap.blkno << 9);
+			bex->soff = iomap.addr;
 			break;
 		}
 		/*FALLTHRU*/
diff --git a/fs/nfsd/blocklayoutxdr.c b/fs/nfsd/blocklayoutxdr.c
index ac6f54546fdd..442543304930 100644
--- a/fs/nfsd/blocklayoutxdr.c
+++ b/fs/nfsd/blocklayoutxdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014-2016 Christoph Hellwig.
  */
diff --git a/fs/nfsd/blocklayoutxdr.h b/fs/nfsd/blocklayoutxdr.h
index 397bc7563a49..bc5166bfe46b 100644
--- a/fs/nfsd/blocklayoutxdr.h
+++ b/fs/nfsd/blocklayoutxdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFSD_BLOCKLAYOUTXDR_H
 #define _NFSD_BLOCKLAYOUTXDR_H 1
 
diff --git a/fs/nfsd/cache.h b/fs/nfsd/cache.h
index dd96a3830004..046b3f048757 100644
--- a/fs/nfsd/cache.h
+++ b/fs/nfsd/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Request reply cache. This was heavily inspired by the
  * implementation in 4.3BSD/4.4BSD.
diff --git a/fs/nfsd/current_stateid.h b/fs/nfsd/current_stateid.h
index 34075cee573a..c28540d86742 100644
--- a/fs/nfsd/current_stateid.h
+++ b/fs/nfsd/current_stateid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFSD4_CURRENT_STATE_H
 #define _NFSD4_CURRENT_STATE_H
 
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 3bc08c394a3f..46b48dbbdd32 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NFS exporting and validation.
  *
diff --git a/fs/nfsd/export.h b/fs/nfsd/export.h
index 730f15eeb7ed..c8b74126ddaa 100644
--- a/fs/nfsd/export.h
+++ b/fs/nfsd/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
  */
diff --git a/fs/nfsd/fault_inject.c b/fs/nfsd/fault_inject.c
index 34c1c449fddf..6dfede6d172a 100644
--- a/fs/nfsd/fault_inject.c
+++ b/fs/nfsd/fault_inject.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2011 Bryan Schumaker <bjschuma@netapp.com>
  *
diff --git a/fs/nfsd/flexfilelayout.c b/fs/nfsd/flexfilelayout.c
index b67287383010..db7ef07ae50c 100644
--- a/fs/nfsd/flexfilelayout.c
+++ b/fs/nfsd/flexfilelayout.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
  *
diff --git a/fs/nfsd/flexfilelayoutxdr.c b/fs/nfsd/flexfilelayoutxdr.c
index 5e3fd7fc1a9f..e81d2a5cf381 100644
--- a/fs/nfsd/flexfilelayoutxdr.c
+++ b/fs/nfsd/flexfilelayoutxdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
  */
diff --git a/fs/nfsd/flexfilelayoutxdr.h b/fs/nfsd/flexfilelayoutxdr.h
index 467defd4e563..8e195aeca023 100644
--- a/fs/nfsd/flexfilelayoutxdr.h
+++ b/fs/nfsd/flexfilelayoutxdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2016 Tom Haynes <loghyr@primarydata.com>
  */
diff --git a/fs/nfsd/lockd.c b/fs/nfsd/lockd.c
index 1a03bc3059e8..3f5b3d7b62b7 100644
--- a/fs/nfsd/lockd.c
+++ b/fs/nfsd/lockd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains all the stubs needed when communicating with lockd.
  * This level of indirection is necessary so we can run nfsd+lockd without
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
index 6276ec8608b0..cbab1d2d8a75 100644
--- a/fs/nfsd/nfs2acl.c
+++ b/fs/nfsd/nfs2acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Process version 2 NFSACL requests.
  *
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
index 01976529f042..13bca4a2f89d 100644
--- a/fs/nfsd/nfs3acl.c
+++ b/fs/nfsd/nfs3acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Process version 3 NFSACL requests.
  *
diff --git a/fs/nfsd/nfs3proc.c b/fs/nfsd/nfs3proc.c
index 2cb56a0d6625..1d0ce3c57d93 100644
--- a/fs/nfsd/nfs3proc.c
+++ b/fs/nfsd/nfs3proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Process version 3 NFS requests.
  *
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index bf444b664011..f38acd905441 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XDR support for nfsd/protocol version 3.
  *
diff --git a/fs/nfsd/nfs4layouts.c b/fs/nfsd/nfs4layouts.c
index e122da696f1b..ea45d954e8d7 100644
--- a/fs/nfsd/nfs4layouts.c
+++ b/fs/nfsd/nfs4layouts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014 Christoph Hellwig.
  */
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 3c69db7d4905..8487486ec496 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -927,6 +927,13 @@ nfsd4_secinfo_release(union nfsd4_op_u *u)
 		exp_put(u->secinfo.si_exp);
 }
 
+static void
+nfsd4_secinfo_no_name_release(union nfsd4_op_u *u)
+{
+	if (u->secinfo_no_name.sin_exp)
+		exp_put(u->secinfo_no_name.sin_exp);
+}
+
 static __be32
 nfsd4_setattr(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	      union nfsd4_op_u *u)
@@ -2375,7 +2382,7 @@ static const struct nfsd4_operation nfsd4_ops[] = {
 	},
 	[OP_SECINFO_NO_NAME] = {
 		.op_func = nfsd4_secinfo_no_name,
-		.op_release = nfsd4_secinfo_release,
+		.op_release = nfsd4_secinfo_no_name_release,
 		.op_flags = OP_HANDLES_WRONGSEC,
 		.op_name = "OP_SECINFO_NO_NAME",
 		.op_rsize_bop = nfsd4_secinfo_rsize,
diff --git a/fs/nfsd/nfscache.c b/fs/nfsd/nfscache.c
index 96fd15979cbd..334f2ad60704 100644
--- a/fs/nfsd/nfscache.c
+++ b/fs/nfsd/nfscache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Request reply cache. This is currently a global cache, but this may
  * change in the future and be a per-client cache.
diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index b9c538ab7a59..3fce905d0365 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Hodge-podge collection of knfsd-related stuff.
  * I will sort this out later.
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index cfe7500d5847..8aa011820c4a 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NFS server file handle treatment.
  *
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index e47cf6c2ac28..43f31cf49bae 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1995, 1996, 1997 Olaf Kirch <okir@monad.swb.de>
  *
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 5076ae2b8258..43c0419b8ddb 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Process version 2 NFS requests.
  *
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 7e3af3ef0917..e02bd2783124 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Central processing for nfsd.
  *
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index e4da2717982d..644a0342f0e0 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * XDR support for nfsd
  *
diff --git a/fs/nfsd/pnfs.h b/fs/nfsd/pnfs.h
index d27a5aa60022..4f4282d4eeca 100644
--- a/fs/nfsd/pnfs.h
+++ b/fs/nfsd/pnfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_NFSD_PNFS_H
 #define _FS_NFSD_PNFS_H 1
 
diff --git a/fs/nfsd/stats.c b/fs/nfsd/stats.c
index d97338bb6a39..9bce3b913189 100644
--- a/fs/nfsd/stats.c
+++ b/fs/nfsd/stats.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * procfs-based user access to knfsd statistics
  *
diff --git a/fs/nfsd/stats.h b/fs/nfsd/stats.h
index a5c944b771c6..b23fdac69820 100644
--- a/fs/nfsd/stats.h
+++ b/fs/nfsd/stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Statistics for NFS server.
  *
diff --git a/fs/nfsd/trace.h b/fs/nfsd/trace.h
index 3287041905da..8b2f1d92c579 100644
--- a/fs/nfsd/trace.h
+++ b/fs/nfsd/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2014 Christoph Hellwig.
  */
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index bc69d40c4e8b..a3c9bfa77def 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * File operations used by nfsd. Some of these have been ripped from
  * other parts of the kernel because they weren't exported, others
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index 1bbdccecbf3d..be6d8e00453f 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de>
  */
diff --git a/fs/nfsd/xdr.h b/fs/nfsd/xdr.h
index 457ce45e5084..2f4f22e6b8cb 100644
--- a/fs/nfsd/xdr.h
+++ b/fs/nfsd/xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* XDR types for nfsd. This is mainly a typing exercise. */
 
 #ifndef LINUX_NFSD_H
diff --git a/fs/nfsd/xdr3.h b/fs/nfsd/xdr3.h
index 80d7da620e91..056bf8a7364e 100644
--- a/fs/nfsd/xdr3.h
+++ b/fs/nfsd/xdr3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * XDR types for NFSv3 in nfsd.
  *
diff --git a/fs/nfsd/xdr4cb.h b/fs/nfsd/xdr4cb.h
index 49b719dfef95..517239af0302 100644
--- a/fs/nfsd/xdr4cb.h
+++ b/fs/nfsd/xdr4cb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define NFS4_MAXTAGLEN		20
 
 #define NFS4_enc_cb_null_sz		0
diff --git a/fs/nilfs2/Makefile b/fs/nilfs2/Makefile
index fc603e0431bb..43b60b8a4d07 100644
--- a/fs/nilfs2/Makefile
+++ b/fs/nilfs2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NILFS2_FS) += nilfs2.o
 nilfs2-y := inode.o file.o dir.o super.o namei.o page.o mdt.o \
 	btnode.o bmap.o btree.o direct.o dat.o recovery.o \
diff --git a/fs/nilfs2/export.h b/fs/nilfs2/export.h
index 00107fdb9343..d29fd837c42c 100644
--- a/fs/nilfs2/export.h
+++ b/fs/nilfs2/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef NILFS_EXPORT_H
 #define NILFS_EXPORT_H
 
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 7ffe71a8dfb9..6a612d832e7d 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -174,7 +174,7 @@ static int nilfs_writepages(struct address_space *mapping,
 	struct inode *inode = mapping->host;
 	int err = 0;
 
-	if (inode->i_sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(inode->i_sb)) {
 		nilfs_clear_dirty_pages(mapping, false);
 		return -EROFS;
 	}
@@ -191,7 +191,7 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
 	struct inode *inode = page->mapping->host;
 	int err;
 
-	if (inode->i_sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(inode->i_sb)) {
 		/*
 		 * It means that filesystem was remounted in read-only
 		 * mode because of error or metadata corruption. But we
diff --git a/fs/nilfs2/mdt.c b/fs/nilfs2/mdt.c
index 98835ed6bef4..c6bc1033e7d2 100644
--- a/fs/nilfs2/mdt.c
+++ b/fs/nilfs2/mdt.c
@@ -413,7 +413,7 @@ nilfs_mdt_write_page(struct page *page, struct writeback_control *wbc)
 	struct super_block *sb;
 	int err = 0;
 
-	if (inode && (inode->i_sb->s_flags & MS_RDONLY)) {
+	if (inode && sb_rdonly(inode->i_sb)) {
 		/*
 		 * It means that filesystem was remounted in read-only
 		 * mode because of error or metadata corruption. But we
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index 926682981d61..4fc018dfcfae 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -136,7 +136,7 @@ void __nilfs_error(struct super_block *sb, const char *function,
 
 	va_end(args);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		nilfs_set_error(sb);
 
 		if (nilfs_test_opt(nilfs, ERRORS_RO)) {
@@ -478,7 +478,7 @@ static void nilfs_put_super(struct super_block *sb)
 
 	nilfs_detach_log_writer(sb);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		down_write(&nilfs->ns_sem);
 		nilfs_cleanup_super(sb);
 		up_write(&nilfs->ns_sem);
@@ -578,7 +578,7 @@ static int nilfs_freeze(struct super_block *sb)
 	struct the_nilfs *nilfs = sb->s_fs_info;
 	int err;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	/* Mark super block clean */
@@ -592,7 +592,7 @@ static int nilfs_unfreeze(struct super_block *sb)
 {
 	struct the_nilfs *nilfs = sb->s_fs_info;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	down_write(&nilfs->ns_sem);
@@ -898,7 +898,7 @@ int nilfs_check_feature_compatibility(struct super_block *sb,
 	}
 	features = le64_to_cpu(sbp->s_feature_compat_ro) &
 		~NILFS_FEATURE_COMPAT_RO_SUPP;
-	if (!(sb->s_flags & MS_RDONLY) && features) {
+	if (!sb_rdonly(sb) && features) {
 		nilfs_msg(sb, KERN_ERR,
 			  "couldn't mount RDWR because of unsupported optional features (%llx)",
 			  (unsigned long long)features);
@@ -1083,7 +1083,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
 		goto failed_unload;
 	}
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		err = nilfs_attach_log_writer(sb, fsroot);
 		if (err)
 			goto failed_checkpoint;
@@ -1095,7 +1095,7 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	nilfs_put_root(fsroot);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		down_write(&nilfs->ns_sem);
 		nilfs_setup_super(sb, true);
 		up_write(&nilfs->ns_sem);
@@ -1144,7 +1144,7 @@ static int nilfs_remount(struct super_block *sb, int *flags, char *data)
 		goto restore_opts;
 	}
 
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		goto out;
 	if (*flags & MS_RDONLY) {
 		/* Shutting down log writer */
@@ -1338,8 +1338,7 @@ nilfs_mount(struct file_system_type *fs_type, int flags,
 			if ((flags ^ s->s_flags) & MS_RDONLY) {
 				nilfs_msg(s, KERN_ERR,
 					  "the device already has a %s mount.",
-					  (s->s_flags & MS_RDONLY) ?
-					  "read-only" : "read/write");
+					  sb_rdonly(s) ? "read-only" : "read/write");
 				err = -EBUSY;
 				goto failed_super;
 			}
diff --git a/fs/nls/Makefile b/fs/nls/Makefile
index 8ae37c1b5249..ac54db297128 100644
--- a/fs/nls/Makefile
+++ b/fs/nls/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for native language support
 #
diff --git a/fs/notify/Makefile b/fs/notify/Makefile
index 3e969ae91b60..63a4b8828df4 100644
--- a/fs/notify/Makefile
+++ b/fs/notify/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_FSNOTIFY)		+= fsnotify.o notification.o group.o mark.o \
 				   fdinfo.o
 
diff --git a/fs/notify/dnotify/dnotify.c b/fs/notify/dnotify/dnotify.c
index cba328315929..63a1ca4b9dee 100644
--- a/fs/notify/dnotify/dnotify.c
+++ b/fs/notify/dnotify/dnotify.c
@@ -319,7 +319,11 @@ int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
 		dn_mark = container_of(fsn_mark, struct dnotify_mark, fsn_mark);
 		spin_lock(&fsn_mark->lock);
 	} else {
-		fsnotify_add_mark_locked(new_fsn_mark, inode, NULL, 0);
+		error = fsnotify_add_mark_locked(new_fsn_mark, inode, NULL, 0);
+		if (error) {
+			mutex_unlock(&dnotify_group->mark_mutex);
+			goto out_err;
+		}
 		spin_lock(&new_fsn_mark->lock);
 		fsn_mark = new_fsn_mark;
 		dn_mark = new_dn_mark;
@@ -345,6 +349,7 @@ int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
 		 */
 		if (dn_mark == new_dn_mark)
 			destroy = 1;
+		error = 0;
 		goto out;
 	}
 
diff --git a/fs/notify/fanotify/fanotify.c b/fs/notify/fanotify/fanotify.c
index 2fa99aeaa095..6702a6a0bbb5 100644
--- a/fs/notify/fanotify/fanotify.c
+++ b/fs/notify/fanotify/fanotify.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fanotify.h>
 #include <linux/fdtable.h>
 #include <linux/fsnotify_backend.h>
@@ -9,6 +10,7 @@
 #include <linux/sched/user.h>
 #include <linux/types.h>
 #include <linux/wait.h>
+#include <linux/audit.h>
 
 #include "fanotify.h"
 
@@ -35,15 +37,13 @@ static int fanotify_merge(struct list_head *list, struct fsnotify_event *event)
 
 	pr_debug("%s: list=%p event=%p\n", __func__, list, event);
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 	/*
 	 * Don't merge a permission event with any other event so that we know
 	 * the event structure we have created in fanotify_handle_event() is the
 	 * one we should check for permission response.
 	 */
-	if (event->mask & FAN_ALL_PERM_EVENTS)
+	if (fanotify_is_perm_event(event->mask))
 		return 0;
-#endif
 
 	list_for_each_entry_reverse(test_event, list, list) {
 		if (should_merge(test_event, event)) {
@@ -55,7 +55,6 @@ static int fanotify_merge(struct list_head *list, struct fsnotify_event *event)
 	return 0;
 }
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 static int fanotify_get_response(struct fsnotify_group *group,
 				 struct fanotify_perm_event_info *event,
 				 struct fsnotify_iter_info *iter_info)
@@ -64,21 +63,10 @@ static int fanotify_get_response(struct fsnotify_group *group,
 
 	pr_debug("%s: group=%p event=%p\n", __func__, group, event);
 
-	/*
-	 * fsnotify_prepare_user_wait() fails if we race with mark deletion.
-	 * Just let the operation pass in that case.
-	 */
-	if (!fsnotify_prepare_user_wait(iter_info)) {
-		event->response = FAN_ALLOW;
-		goto out;
-	}
-
 	wait_event(group->fanotify_data.access_waitq, event->response);
 
-	fsnotify_finish_user_wait(iter_info);
-out:
 	/* userspace responded, convert to something usable */
-	switch (event->response) {
+	switch (event->response & ~FAN_AUDIT) {
 	case FAN_ALLOW:
 		ret = 0;
 		break;
@@ -86,6 +74,11 @@ out:
 	default:
 		ret = -EPERM;
 	}
+
+	/* Check if the response should be audited */
+	if (event->response & FAN_AUDIT)
+		audit_fanotify(event->response & ~FAN_AUDIT);
+
 	event->response = 0;
 
 	pr_debug("%s: group=%p event=%p about to return ret=%d\n", __func__,
@@ -93,7 +86,6 @@ out:
 	
 	return ret;
 }
-#endif
 
 static bool fanotify_should_send_event(struct fsnotify_mark *inode_mark,
 				       struct fsnotify_mark *vfsmnt_mark,
@@ -152,8 +144,7 @@ struct fanotify_event_info *fanotify_alloc_event(struct inode *inode, u32 mask,
 {
 	struct fanotify_event_info *event;
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-	if (mask & FAN_ALL_PERM_EVENTS) {
+	if (fanotify_is_perm_event(mask)) {
 		struct fanotify_perm_event_info *pevent;
 
 		pevent = kmem_cache_alloc(fanotify_perm_event_cachep,
@@ -164,7 +155,6 @@ struct fanotify_event_info *fanotify_alloc_event(struct inode *inode, u32 mask,
 		pevent->response = 0;
 		goto init;
 	}
-#endif
 	event = kmem_cache_alloc(fanotify_event_cachep, GFP_KERNEL);
 	if (!event)
 		return NULL;
@@ -211,9 +201,19 @@ static int fanotify_handle_event(struct fsnotify_group *group,
 	pr_debug("%s: group=%p inode=%p mask=%x\n", __func__, group, inode,
 		 mask);
 
+	if (fanotify_is_perm_event(mask)) {
+		/*
+		 * fsnotify_prepare_user_wait() fails if we race with mark
+		 * deletion.  Just let the operation pass in that case.
+		 */
+		if (!fsnotify_prepare_user_wait(iter_info))
+			return 0;
+	}
+
 	event = fanotify_alloc_event(inode, mask, data);
+	ret = -ENOMEM;
 	if (unlikely(!event))
-		return -ENOMEM;
+		goto finish;
 
 	fsn_event = &event->fse;
 	ret = fsnotify_add_event(group, fsn_event, fanotify_merge);
@@ -223,16 +223,16 @@ static int fanotify_handle_event(struct fsnotify_group *group,
 		/* Our event wasn't used in the end. Free it. */
 		fsnotify_destroy_event(group, fsn_event);
 
-		return 0;
-	}
-
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-	if (mask & FAN_ALL_PERM_EVENTS) {
+		ret = 0;
+	} else if (fanotify_is_perm_event(mask)) {
 		ret = fanotify_get_response(group, FANOTIFY_PE(fsn_event),
 					    iter_info);
 		fsnotify_destroy_event(group, fsn_event);
 	}
-#endif
+finish:
+	if (fanotify_is_perm_event(mask))
+		fsnotify_finish_user_wait(iter_info);
+
 	return ret;
 }
 
@@ -252,13 +252,11 @@ static void fanotify_free_event(struct fsnotify_event *fsn_event)
 	event = FANOTIFY_E(fsn_event);
 	path_put(&event->path);
 	put_pid(event->tgid);
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-	if (fsn_event->mask & FAN_ALL_PERM_EVENTS) {
+	if (fanotify_is_perm_event(fsn_event->mask)) {
 		kmem_cache_free(fanotify_perm_event_cachep,
 				FANOTIFY_PE(fsn_event));
 		return;
 	}
-#endif
 	kmem_cache_free(fanotify_event_cachep, event);
 }
 
diff --git a/fs/notify/fanotify/fanotify.h b/fs/notify/fanotify/fanotify.h
index 4eb6f5efa282..256d9d1ddea9 100644
--- a/fs/notify/fanotify/fanotify.h
+++ b/fs/notify/fanotify/fanotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fsnotify_backend.h>
 #include <linux/path.h>
 #include <linux/slab.h>
@@ -21,7 +22,6 @@ struct fanotify_event_info {
 	struct pid *tgid;
 };
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 /*
  * Structure for permission fanotify events. It gets allocated and freed in
  * fanotify_handle_event() since we wait there for user response. When the
@@ -40,7 +40,12 @@ FANOTIFY_PE(struct fsnotify_event *fse)
 {
 	return container_of(fse, struct fanotify_perm_event_info, fae.fse);
 }
-#endif
+
+static inline bool fanotify_is_perm_event(u32 mask)
+{
+	return IS_ENABLED(CONFIG_FANOTIFY_ACCESS_PERMISSIONS) &&
+		mask & FAN_ALL_PERM_EVENTS;
+}
 
 static inline struct fanotify_event_info *FANOTIFY_E(struct fsnotify_event *fse)
 {
diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 907a481ac781..d0d4bc4c4b70 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fanotify.h>
 #include <linux/fcntl.h>
 #include <linux/file.h>
@@ -142,7 +143,6 @@ static int fill_event_metadata(struct fsnotify_group *group,
 	return ret;
 }
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 static struct fanotify_perm_event_info *dequeue_event(
 				struct fsnotify_group *group, int fd)
 {
@@ -179,7 +179,7 @@ static int process_access_response(struct fsnotify_group *group,
 	 * userspace can send a valid response or we will clean it up after the
 	 * timeout
 	 */
-	switch (response) {
+	switch (response & ~FAN_AUDIT) {
 	case FAN_ALLOW:
 	case FAN_DENY:
 		break;
@@ -190,6 +190,9 @@ static int process_access_response(struct fsnotify_group *group,
 	if (fd < 0)
 		return -EINVAL;
 
+	if ((response & FAN_AUDIT) && !group->fanotify_data.audit)
+		return -EINVAL;
+
 	event = dequeue_event(group, fd);
 	if (!event)
 		return -ENOENT;
@@ -199,7 +202,6 @@ static int process_access_response(struct fsnotify_group *group,
 
 	return 0;
 }
-#endif
 
 static ssize_t copy_event_to_user(struct fsnotify_group *group,
 				  struct fsnotify_event *event,
@@ -221,10 +223,8 @@ static ssize_t copy_event_to_user(struct fsnotify_group *group,
 			 fanotify_event_metadata.event_len))
 		goto out_close_fd;
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-	if (event->mask & FAN_ALL_PERM_EVENTS)
+	if (fanotify_is_perm_event(event->mask))
 		FANOTIFY_PE(event)->fd = fd;
-#endif
 
 	if (fd != FAN_NOFD)
 		fd_install(fd, f);
@@ -309,10 +309,9 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
 		 * Permission events get queued to wait for response.  Other
 		 * events can be destroyed now.
 		 */
-		if (!(kevent->mask & FAN_ALL_PERM_EVENTS)) {
+		if (!fanotify_is_perm_event(kevent->mask)) {
 			fsnotify_destroy_event(group, kevent);
 		} else {
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 			if (ret <= 0) {
 				FANOTIFY_PE(kevent)->response = FAN_DENY;
 				wake_up(&group->fanotify_data.access_waitq);
@@ -322,7 +321,6 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
 					&group->fanotify_data.access_list);
 				spin_unlock(&group->notification_lock);
 			}
-#endif
 		}
 		if (ret < 0)
 			break;
@@ -338,11 +336,13 @@ static ssize_t fanotify_read(struct file *file, char __user *buf,
 
 static ssize_t fanotify_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
 {
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 	struct fanotify_response response = { .fd = -1, .response = -1 };
 	struct fsnotify_group *group;
 	int ret;
 
+	if (!IS_ENABLED(CONFIG_FANOTIFY_ACCESS_PERMISSIONS))
+		return -EINVAL;
+
 	group = file->private_data;
 
 	if (count > sizeof(response))
@@ -358,16 +358,11 @@ static ssize_t fanotify_write(struct file *file, const char __user *buf, size_t
 		count = ret;
 
 	return count;
-#else
-	return -EINVAL;
-#endif
 }
 
 static int fanotify_release(struct inode *ignored, struct file *file)
 {
 	struct fsnotify_group *group = file->private_data;
-
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 	struct fanotify_perm_event_info *event, *next;
 	struct fsnotify_event *fsn_event;
 
@@ -403,14 +398,14 @@ static int fanotify_release(struct inode *ignored, struct file *file)
 			spin_unlock(&group->notification_lock);
 			fsnotify_destroy_event(group, fsn_event);
 			spin_lock(&group->notification_lock);
-		} else
+		} else {
 			FANOTIFY_PE(fsn_event)->response = FAN_ALLOW;
+		}
 	}
 	spin_unlock(&group->notification_lock);
 
 	/* Response for all permission events it set, wakeup waiters */
 	wake_up(&group->fanotify_data.access_waitq);
-#endif
 
 	/* matches the fanotify_init->fsnotify_alloc_group */
 	fsnotify_destroy_group(group);
@@ -721,7 +716,11 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
+#ifdef CONFIG_AUDITSYSCALL
+	if (flags & ~(FAN_ALL_INIT_FLAGS | FAN_ENABLE_AUDIT))
+#else
 	if (flags & ~FAN_ALL_INIT_FLAGS)
+#endif
 		return -EINVAL;
 
 	if (event_f_flags & ~FANOTIFY_INIT_ALL_EVENT_F_BITS)
@@ -768,10 +767,8 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
 	if (force_o_largefile())
 		event_f_flags |= O_LARGEFILE;
 	group->fanotify_data.f_flags = event_f_flags;
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 	init_waitqueue_head(&group->fanotify_data.access_waitq);
 	INIT_LIST_HEAD(&group->fanotify_data.access_list);
-#endif
 	switch (flags & FAN_ALL_CLASS_BITS) {
 	case FAN_CLASS_NOTIF:
 		group->priority = FS_PRIO_0;
@@ -805,6 +802,13 @@ SYSCALL_DEFINE2(fanotify_init, unsigned int, flags, unsigned int, event_f_flags)
 		group->fanotify_data.max_marks = FANOTIFY_DEFAULT_MAX_MARKS;
 	}
 
+	if (flags & FAN_ENABLE_AUDIT) {
+		fd = -EPERM;
+		if (!capable(CAP_AUDIT_WRITE))
+			goto out_destroy_group;
+		group->fanotify_data.audit = true;
+	}
+
 	fd = anon_inode_getfd("[fanotify]", &fanotify_fops, group, f_flags);
 	if (fd < 0)
 		goto out_destroy_group;
@@ -825,6 +829,7 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
 	struct fsnotify_group *group;
 	struct fd f;
 	struct path path;
+	u32 valid_mask = FAN_ALL_EVENTS | FAN_EVENT_ON_CHILD;
 	int ret;
 
 	pr_debug("%s: fanotify_fd=%d flags=%x dfd=%d pathname=%p mask=%llx\n",
@@ -855,11 +860,10 @@ SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
 		mask &= ~FAN_ONDIR;
 	}
 
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-	if (mask & ~(FAN_ALL_EVENTS | FAN_ALL_PERM_EVENTS | FAN_EVENT_ON_CHILD))
-#else
-	if (mask & ~(FAN_ALL_EVENTS | FAN_EVENT_ON_CHILD))
-#endif
+	if (IS_ENABLED(CONFIG_FANOTIFY_ACCESS_PERMISSIONS))
+		valid_mask |= FAN_ALL_PERM_EVENTS;
+
+	if (mask & ~valid_mask)
 		return -EINVAL;
 
 	f = fdget(fanotify_fd);
@@ -949,10 +953,10 @@ static int __init fanotify_user_setup(void)
 {
 	fanotify_mark_cache = KMEM_CACHE(fsnotify_mark, SLAB_PANIC);
 	fanotify_event_cachep = KMEM_CACHE(fanotify_event_info, SLAB_PANIC);
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
-	fanotify_perm_event_cachep = KMEM_CACHE(fanotify_perm_event_info,
-						SLAB_PANIC);
-#endif
+	if (IS_ENABLED(CONFIG_FANOTIFY_ACCESS_PERMISSIONS)) {
+		fanotify_perm_event_cachep =
+			KMEM_CACHE(fanotify_perm_event_info, SLAB_PANIC);
+	}
 
 	return 0;
 }
diff --git a/fs/notify/fdinfo.c b/fs/notify/fdinfo.c
index dd63aa9a6f9a..d478629c728b 100644
--- a/fs/notify/fdinfo.c
+++ b/fs/notify/fdinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/file.h>
 #include <linux/fs.h>
 #include <linux/fsnotify_backend.h>
@@ -156,6 +157,9 @@ void fanotify_show_fdinfo(struct seq_file *m, struct file *f)
 	if (group->fanotify_data.max_marks == UINT_MAX)
 		flags |= FAN_UNLIMITED_MARKS;
 
+	if (group->fanotify_data.audit)
+		flags |= FAN_ENABLE_AUDIT;
+
 	seq_printf(m, "fanotify flags:%x event-flags:%x\n",
 		   flags, group->fanotify_data.f_flags);
 
diff --git a/fs/notify/fdinfo.h b/fs/notify/fdinfo.h
index 9664c4904d6b..5c9937e02e21 100644
--- a/fs/notify/fdinfo.h
+++ b/fs/notify/fdinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FSNOTIFY_FDINFO_H__
 #define __FSNOTIFY_FDINFO_H__
 
diff --git a/fs/notify/fsnotify.c b/fs/notify/fsnotify.c
index 0c4583b61717..81d8959b6aef 100644
--- a/fs/notify/fsnotify.c
+++ b/fs/notify/fsnotify.c
@@ -243,6 +243,29 @@ static int send_to_group(struct inode *to_tell,
 					file_name, cookie, iter_info);
 }
 
+static struct fsnotify_mark *fsnotify_first_mark(struct fsnotify_mark_connector **connp)
+{
+	struct fsnotify_mark_connector *conn;
+	struct hlist_node *node = NULL;
+
+	conn = srcu_dereference(*connp, &fsnotify_mark_srcu);
+	if (conn)
+		node = srcu_dereference(conn->list.first, &fsnotify_mark_srcu);
+
+	return hlist_entry_safe(node, struct fsnotify_mark, obj_list);
+}
+
+static struct fsnotify_mark *fsnotify_next_mark(struct fsnotify_mark *mark)
+{
+	struct hlist_node *node = NULL;
+
+	if (mark)
+		node = srcu_dereference(mark->obj_list.next,
+					&fsnotify_mark_srcu);
+
+	return hlist_entry_safe(node, struct fsnotify_mark, obj_list);
+}
+
 /*
  * This is the main call to fsnotify.  The VFS calls into hook specific functions
  * in linux/fsnotify.h.  Those functions then in turn call here.  Here will call
@@ -252,11 +275,7 @@ static int send_to_group(struct inode *to_tell,
 int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
 	     const unsigned char *file_name, u32 cookie)
 {
-	struct hlist_node *inode_node = NULL, *vfsmount_node = NULL;
-	struct fsnotify_mark *inode_mark = NULL, *vfsmount_mark = NULL;
-	struct fsnotify_group *inode_group, *vfsmount_group;
-	struct fsnotify_mark_connector *inode_conn, *vfsmount_conn;
-	struct fsnotify_iter_info iter_info;
+	struct fsnotify_iter_info iter_info = {};
 	struct mount *mnt;
 	int ret = 0;
 	/* global tests shouldn't care about events on child only the specific event */
@@ -291,26 +310,16 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
 
 	if ((mask & FS_MODIFY) ||
 	    (test_mask & to_tell->i_fsnotify_mask)) {
-		inode_conn = srcu_dereference(to_tell->i_fsnotify_marks,
-					      &fsnotify_mark_srcu);
-		if (inode_conn)
-			inode_node = srcu_dereference(inode_conn->list.first,
-						      &fsnotify_mark_srcu);
+		iter_info.inode_mark =
+			fsnotify_first_mark(&to_tell->i_fsnotify_marks);
 	}
 
 	if (mnt && ((mask & FS_MODIFY) ||
 		    (test_mask & mnt->mnt_fsnotify_mask))) {
-		inode_conn = srcu_dereference(to_tell->i_fsnotify_marks,
-					      &fsnotify_mark_srcu);
-		if (inode_conn)
-			inode_node = srcu_dereference(inode_conn->list.first,
-						      &fsnotify_mark_srcu);
-		vfsmount_conn = srcu_dereference(mnt->mnt_fsnotify_marks,
-					         &fsnotify_mark_srcu);
-		if (vfsmount_conn)
-			vfsmount_node = srcu_dereference(
-						vfsmount_conn->list.first,
-						&fsnotify_mark_srcu);
+		iter_info.inode_mark =
+			fsnotify_first_mark(&to_tell->i_fsnotify_marks);
+		iter_info.vfsmount_mark =
+			fsnotify_first_mark(&mnt->mnt_fsnotify_marks);
 	}
 
 	/*
@@ -318,39 +327,19 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
 	 * ignore masks are properly reflected for mount mark notifications.
 	 * That's why this traversal is so complicated...
 	 */
-	while (inode_node || vfsmount_node) {
-		inode_group = NULL;
-		inode_mark = NULL;
-		vfsmount_group = NULL;
-		vfsmount_mark = NULL;
-
-		if (inode_node) {
-			inode_mark = hlist_entry(srcu_dereference(inode_node, &fsnotify_mark_srcu),
-						 struct fsnotify_mark, obj_list);
-			inode_group = inode_mark->group;
-		}
-
-		if (vfsmount_node) {
-			vfsmount_mark = hlist_entry(srcu_dereference(vfsmount_node, &fsnotify_mark_srcu),
-						    struct fsnotify_mark, obj_list);
-			vfsmount_group = vfsmount_mark->group;
-		}
-
-		if (inode_group && vfsmount_group) {
-			int cmp = fsnotify_compare_groups(inode_group,
-							  vfsmount_group);
-			if (cmp > 0) {
-				inode_group = NULL;
+	while (iter_info.inode_mark || iter_info.vfsmount_mark) {
+		struct fsnotify_mark *inode_mark = iter_info.inode_mark;
+		struct fsnotify_mark *vfsmount_mark = iter_info.vfsmount_mark;
+
+		if (inode_mark && vfsmount_mark) {
+			int cmp = fsnotify_compare_groups(inode_mark->group,
+							  vfsmount_mark->group);
+			if (cmp > 0)
 				inode_mark = NULL;
-			} else if (cmp < 0) {
-				vfsmount_group = NULL;
+			else if (cmp < 0)
 				vfsmount_mark = NULL;
-			}
 		}
 
-		iter_info.inode_mark = inode_mark;
-		iter_info.vfsmount_mark = vfsmount_mark;
-
 		ret = send_to_group(to_tell, inode_mark, vfsmount_mark, mask,
 				    data, data_is, cookie, file_name,
 				    &iter_info);
@@ -358,12 +347,12 @@ int fsnotify(struct inode *to_tell, __u32 mask, const void *data, int data_is,
 		if (ret && (mask & ALL_FSNOTIFY_PERM_EVENTS))
 			goto out;
 
-		if (inode_group)
-			inode_node = srcu_dereference(inode_node->next,
-						      &fsnotify_mark_srcu);
-		if (vfsmount_group)
-			vfsmount_node = srcu_dereference(vfsmount_node->next,
-							 &fsnotify_mark_srcu);
+		if (inode_mark)
+			iter_info.inode_mark =
+				fsnotify_next_mark(iter_info.inode_mark);
+		if (vfsmount_mark)
+			iter_info.vfsmount_mark =
+				fsnotify_next_mark(iter_info.vfsmount_mark);
 	}
 	ret = 0;
 out:
diff --git a/fs/notify/fsnotify.h b/fs/notify/fsnotify.h
index bf012e8ecd14..60f365dc1408 100644
--- a/fs/notify/fsnotify.h
+++ b/fs/notify/fsnotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_NOTIFY_FSNOTIFY_H_
 #define __FS_NOTIFY_FSNOTIFY_H_
 
diff --git a/fs/notify/group.c b/fs/notify/group.c
index 32357534de18..b7a4b6a69efa 100644
--- a/fs/notify/group.c
+++ b/fs/notify/group.c
@@ -107,7 +107,7 @@ void fsnotify_destroy_group(struct fsnotify_group *group)
  */
 void fsnotify_get_group(struct fsnotify_group *group)
 {
-	atomic_inc(&group->refcnt);
+	refcount_inc(&group->refcnt);
 }
 
 /*
@@ -115,7 +115,7 @@ void fsnotify_get_group(struct fsnotify_group *group)
  */
 void fsnotify_put_group(struct fsnotify_group *group)
 {
-	if (atomic_dec_and_test(&group->refcnt))
+	if (refcount_dec_and_test(&group->refcnt))
 		fsnotify_final_destroy_group(group);
 }
 
@@ -131,7 +131,7 @@ struct fsnotify_group *fsnotify_alloc_group(const struct fsnotify_ops *ops)
 		return ERR_PTR(-ENOMEM);
 
 	/* set to 0 when there a no external references to this group */
-	atomic_set(&group->refcnt, 1);
+	refcount_set(&group->refcnt, 1);
 	atomic_set(&group->num_marks, 0);
 	atomic_set(&group->user_waits, 0);
 
diff --git a/fs/notify/inotify/inotify.h b/fs/notify/inotify/inotify.h
index 9ff67b61da8a..c00d2caca894 100644
--- a/fs/notify/inotify/inotify.h
+++ b/fs/notify/inotify/inotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fsnotify_backend.h>
 #include <linux/inotify.h>
 #include <linux/slab.h> /* struct kmem_cache */
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 7cc7d3fb1862..d3c20e0bb046 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -376,7 +376,7 @@ static struct inotify_inode_mark *inotify_idr_find_locked(struct fsnotify_group
 
 		fsnotify_get_mark(fsn_mark);
 		/* One ref for being in the idr, one ref we just took */
-		BUG_ON(atomic_read(&fsn_mark->refcnt) < 2);
+		BUG_ON(refcount_read(&fsn_mark->refcnt) < 2);
 	}
 
 	return i_mark;
@@ -446,7 +446,7 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
 	 * One ref for being in the idr
 	 * one ref grabbed by inotify_idr_find
 	 */
-	if (unlikely(atomic_read(&i_mark->fsn_mark.refcnt) < 2)) {
+	if (unlikely(refcount_read(&i_mark->fsn_mark.refcnt) < 2)) {
 		printk(KERN_ERR "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p\n",
 			 __func__, i_mark, i_mark->wd, i_mark->fsn_mark.group);
 		/* we can't really recover with bad ref cnting.. */
diff --git a/fs/notify/mark.c b/fs/notify/mark.c
index 9991f8826734..e9191b416434 100644
--- a/fs/notify/mark.c
+++ b/fs/notify/mark.c
@@ -105,18 +105,8 @@ static DECLARE_WORK(connector_reaper_work, fsnotify_connector_destroy_workfn);
 
 void fsnotify_get_mark(struct fsnotify_mark *mark)
 {
-	WARN_ON_ONCE(!atomic_read(&mark->refcnt));
-	atomic_inc(&mark->refcnt);
-}
-
-/*
- * Get mark reference when we found the mark via lockless traversal of object
- * list. Mark can be already removed from the list by now and on its way to be
- * destroyed once SRCU period ends.
- */
-static bool fsnotify_get_mark_safe(struct fsnotify_mark *mark)
-{
-	return atomic_inc_not_zero(&mark->refcnt);
+	WARN_ON_ONCE(!refcount_read(&mark->refcnt));
+	refcount_inc(&mark->refcnt);
 }
 
 static void __fsnotify_recalc_mask(struct fsnotify_mark_connector *conn)
@@ -211,7 +201,7 @@ void fsnotify_put_mark(struct fsnotify_mark *mark)
 
 	/* Catch marks that were actually never attached to object */
 	if (!mark->connector) {
-		if (atomic_dec_and_test(&mark->refcnt))
+		if (refcount_dec_and_test(&mark->refcnt))
 			fsnotify_final_mark_destroy(mark);
 		return;
 	}
@@ -220,7 +210,7 @@ void fsnotify_put_mark(struct fsnotify_mark *mark)
 	 * We have to be careful so that traversals of obj_list under lock can
 	 * safely grab mark reference.
 	 */
-	if (!atomic_dec_and_lock(&mark->refcnt, &mark->connector->lock))
+	if (!refcount_dec_and_lock(&mark->refcnt, &mark->connector->lock))
 		return;
 
 	conn = mark->connector;
@@ -256,32 +246,60 @@ void fsnotify_put_mark(struct fsnotify_mark *mark)
 			   FSNOTIFY_REAPER_DELAY);
 }
 
-bool fsnotify_prepare_user_wait(struct fsnotify_iter_info *iter_info)
+/*
+ * Get mark reference when we found the mark via lockless traversal of object
+ * list. Mark can be already removed from the list by now and on its way to be
+ * destroyed once SRCU period ends.
+ *
+ * Also pin the group so it doesn't disappear under us.
+ */
+static bool fsnotify_get_mark_safe(struct fsnotify_mark *mark)
 {
-	struct fsnotify_group *group;
-
-	if (WARN_ON_ONCE(!iter_info->inode_mark && !iter_info->vfsmount_mark))
-		return false;
-
-	if (iter_info->inode_mark)
-		group = iter_info->inode_mark->group;
-	else
-		group = iter_info->vfsmount_mark->group;
+	if (!mark)
+		return true;
+
+	if (refcount_inc_not_zero(&mark->refcnt)) {
+		spin_lock(&mark->lock);
+		if (mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED) {
+			/* mark is attached, group is still alive then */
+			atomic_inc(&mark->group->user_waits);
+			spin_unlock(&mark->lock);
+			return true;
+		}
+		spin_unlock(&mark->lock);
+		fsnotify_put_mark(mark);
+	}
+	return false;
+}
 
-	/*
-	 * Since acquisition of mark reference is an atomic op as well, we can
-	 * be sure this inc is seen before any effect of refcount increment.
-	 */
-	atomic_inc(&group->user_waits);
+/*
+ * Puts marks and wakes up group destruction if necessary.
+ *
+ * Pairs with fsnotify_get_mark_safe()
+ */
+static void fsnotify_put_mark_wake(struct fsnotify_mark *mark)
+{
+	if (mark) {
+		struct fsnotify_group *group = mark->group;
 
-	if (iter_info->inode_mark) {
-		/* This can fail if mark is being removed */
-		if (!fsnotify_get_mark_safe(iter_info->inode_mark))
-			goto out_wait;
+		fsnotify_put_mark(mark);
+		/*
+		 * We abuse notification_waitq on group shutdown for waiting for
+		 * all marks pinned when waiting for userspace.
+		 */
+		if (atomic_dec_and_test(&group->user_waits) && group->shutdown)
+			wake_up(&group->notification_waitq);
 	}
-	if (iter_info->vfsmount_mark) {
-		if (!fsnotify_get_mark_safe(iter_info->vfsmount_mark))
-			goto out_inode;
+}
+
+bool fsnotify_prepare_user_wait(struct fsnotify_iter_info *iter_info)
+{
+	/* This can fail if mark is being removed */
+	if (!fsnotify_get_mark_safe(iter_info->inode_mark))
+		return false;
+	if (!fsnotify_get_mark_safe(iter_info->vfsmount_mark)) {
+		fsnotify_put_mark_wake(iter_info->inode_mark);
+		return false;
 	}
 
 	/*
@@ -292,34 +310,13 @@ bool fsnotify_prepare_user_wait(struct fsnotify_iter_info *iter_info)
 	srcu_read_unlock(&fsnotify_mark_srcu, iter_info->srcu_idx);
 
 	return true;
-out_inode:
-	if (iter_info->inode_mark)
-		fsnotify_put_mark(iter_info->inode_mark);
-out_wait:
-	if (atomic_dec_and_test(&group->user_waits) && group->shutdown)
-		wake_up(&group->notification_waitq);
-	return false;
 }
 
 void fsnotify_finish_user_wait(struct fsnotify_iter_info *iter_info)
 {
-	struct fsnotify_group *group = NULL;
-
 	iter_info->srcu_idx = srcu_read_lock(&fsnotify_mark_srcu);
-	if (iter_info->inode_mark) {
-		group = iter_info->inode_mark->group;
-		fsnotify_put_mark(iter_info->inode_mark);
-	}
-	if (iter_info->vfsmount_mark) {
-		group = iter_info->vfsmount_mark->group;
-		fsnotify_put_mark(iter_info->vfsmount_mark);
-	}
-	/*
-	 * We abuse notification_waitq on group shutdown for waiting for all
-	 * marks pinned when waiting for userspace.
-	 */
-	if (atomic_dec_and_test(&group->user_waits) && group->shutdown)
-		wake_up(&group->notification_waitq);
+	fsnotify_put_mark_wake(iter_info->inode_mark);
+	fsnotify_put_mark_wake(iter_info->vfsmount_mark);
 }
 
 /*
@@ -338,7 +335,7 @@ void fsnotify_detach_mark(struct fsnotify_mark *mark)
 
 	WARN_ON_ONCE(!mutex_is_locked(&group->mark_mutex));
 	WARN_ON_ONCE(!srcu_read_lock_held(&fsnotify_mark_srcu) &&
-		     atomic_read(&mark->refcnt) < 1 +
+		     refcount_read(&mark->refcnt) < 1 +
 			!!(mark->flags & FSNOTIFY_MARK_FLAG_ATTACHED));
 
 	spin_lock(&mark->lock);
@@ -599,9 +596,11 @@ int fsnotify_add_mark_locked(struct fsnotify_mark *mark, struct inode *inode,
 
 	return ret;
 err:
+	spin_lock(&mark->lock);
 	mark->flags &= ~(FSNOTIFY_MARK_FLAG_ALIVE |
 			 FSNOTIFY_MARK_FLAG_ATTACHED);
 	list_del_init(&mark->g_list);
+	spin_unlock(&mark->lock);
 	atomic_dec(&group->num_marks);
 
 	fsnotify_put_mark(mark);
@@ -738,7 +737,7 @@ void fsnotify_init_mark(struct fsnotify_mark *mark,
 {
 	memset(mark, 0, sizeof(*mark));
 	spin_lock_init(&mark->lock);
-	atomic_set(&mark->refcnt, 1);
+	refcount_set(&mark->refcnt, 1);
 	fsnotify_get_group(group);
 	mark->group = group;
 }
diff --git a/fs/nsfs.c b/fs/nsfs.c
index 08127a2b8559..ef243e14b6eb 100644
--- a/fs/nsfs.c
+++ b/fs/nsfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mount.h>
 #include <linux/file.h>
 #include <linux/fs.h>
diff --git a/fs/ntfs/Makefile b/fs/ntfs/Makefile
index 2ff263e6d363..3e736572ed00 100644
--- a/fs/ntfs/Makefile
+++ b/fs/ntfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Rules for making the NTFS driver.
 
 obj-$(CONFIG_NTFS_FS) += ntfs.o
diff --git a/fs/ntfs/aops.c b/fs/ntfs/aops.c
index cc91856b5e2d..3a2e509c77c5 100644
--- a/fs/ntfs/aops.c
+++ b/fs/ntfs/aops.c
@@ -1739,7 +1739,7 @@ void mark_ntfs_record_dirty(struct page *page, const unsigned int ofs) {
 	spin_lock(&mapping->private_lock);
 	if (unlikely(!page_has_buffers(page))) {
 		spin_unlock(&mapping->private_lock);
-		bh = head = alloc_page_buffers(page, bh_size, 1);
+		bh = head = alloc_page_buffers(page, bh_size, true);
 		spin_lock(&mapping->private_lock);
 		if (likely(!page_has_buffers(page))) {
 			struct buffer_head *tail;
diff --git a/fs/ntfs/mft.c b/fs/ntfs/mft.c
index b6f402194f02..ee8392aee9f6 100644
--- a/fs/ntfs/mft.c
+++ b/fs/ntfs/mft.c
@@ -507,7 +507,7 @@ int ntfs_sync_mft_mirror(ntfs_volume *vol, const unsigned long mft_no,
 	if (unlikely(!page_has_buffers(page))) {
 		struct buffer_head *tail;
 
-		bh = head = alloc_page_buffers(page, blocksize, 1);
+		bh = head = alloc_page_buffers(page, blocksize, true);
 		do {
 			set_buffer_uptodate(bh);
 			tail = bh;
diff --git a/fs/ntfs/super.c b/fs/ntfs/super.c
index ecb49870a680..3f70f041dbe9 100644
--- a/fs/ntfs/super.c
+++ b/fs/ntfs/super.c
@@ -487,7 +487,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt)
 	 * When remounting read-only, mark the volume clean if no volume errors
 	 * have occurred.
 	 */
-	if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
+	if (sb_rdonly(sb) && !(*flags & MS_RDONLY)) {
 		static const char *es = ".  Cannot remount read-write.";
 
 		/* Remounting read-write. */
@@ -548,7 +548,7 @@ static int ntfs_remount(struct super_block *sb, int *flags, char *opt)
 			NVolSetErrors(vol);
 			return -EROFS;
 		}
-	} else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) {
+	} else if (!sb_rdonly(sb) && (*flags & MS_RDONLY)) {
 		/* Remounting read-only. */
 		if (!NVolErrors(vol)) {
 			if (ntfs_clear_volume_flags(vol, VOLUME_IS_DIRTY))
@@ -732,7 +732,7 @@ hotfix_primary_boot_sector:
 		 * on a large sector device contains the whole boot loader or
 		 * just the first 512 bytes).
 		 */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			ntfs_warning(sb, "Hot-fix: Recovering invalid primary "
 					"boot sector from backup copy.");
 			memcpy(bh_primary->b_data, bh_backup->b_data,
@@ -1789,7 +1789,7 @@ static bool load_system_files(ntfs_volume *vol)
 		static const char *es3 = ".  Run ntfsfix and/or chkdsk.";
 
 		/* If a read-write mount, convert it to a read-only mount. */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
 					ON_ERRORS_CONTINUE))) {
 				ntfs_error(sb, "%s and neither on_errors="
@@ -1928,7 +1928,7 @@ get_ctx_vol_failed:
 					(unsigned)le16_to_cpu(vol->vol_flags));
 		}
 		/* If a read-write mount, convert it to a read-only mount. */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
 					ON_ERRORS_CONTINUE))) {
 				ntfs_error(sb, "%s and neither on_errors="
@@ -1961,7 +1961,7 @@ get_ctx_vol_failed:
 
 		es1 = !vol->logfile_ino ? es1a : es1b;
 		/* If a read-write mount, convert it to a read-only mount. */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
 					ON_ERRORS_CONTINUE))) {
 				ntfs_error(sb, "%s and neither on_errors="
@@ -2010,7 +2010,7 @@ get_ctx_vol_failed:
 
 		es1 = err < 0 ? es1a : es1b;
 		/* If a read-write mount, convert it to a read-only mount. */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
 					ON_ERRORS_CONTINUE))) {
 				ntfs_error(sb, "%s and neither on_errors="
@@ -2028,8 +2028,7 @@ get_ctx_vol_failed:
 		NVolSetErrors(vol);
 	}
 	/* If (still) a read-write mount, mark the volume dirty. */
-	if (!(sb->s_flags & MS_RDONLY) &&
-			ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) {
+	if (!sb_rdonly(sb) && ntfs_set_volume_flags(vol, VOLUME_IS_DIRTY)) {
 		static const char *es1 = "Failed to set dirty bit in volume "
 				"information flags";
 		static const char *es2 = ".  Run chkdsk.";
@@ -2075,8 +2074,7 @@ get_ctx_vol_failed:
 	}
 #endif
 	/* If (still) a read-write mount, empty the logfile. */
-	if (!(sb->s_flags & MS_RDONLY) &&
-			!ntfs_empty_logfile(vol->logfile_ino)) {
+	if (!sb_rdonly(sb) && !ntfs_empty_logfile(vol->logfile_ino)) {
 		static const char *es1 = "Failed to empty $LogFile";
 		static const char *es2 = ".  Mount in Windows.";
 
@@ -2121,7 +2119,7 @@ get_ctx_vol_failed:
 		static const char *es2 = ".  Run chkdsk.";
 
 		/* If a read-write mount, convert it to a read-only mount. */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
 					ON_ERRORS_CONTINUE))) {
 				ntfs_error(sb, "%s and neither on_errors="
@@ -2139,8 +2137,7 @@ get_ctx_vol_failed:
 		NVolSetErrors(vol);
 	}
 	/* If (still) a read-write mount, mark the quotas out of date. */
-	if (!(sb->s_flags & MS_RDONLY) &&
-			!ntfs_mark_quotas_out_of_date(vol)) {
+	if (!sb_rdonly(sb) && !ntfs_mark_quotas_out_of_date(vol)) {
 		static const char *es1 = "Failed to mark quotas out of date";
 		static const char *es2 = ".  Run chkdsk.";
 
@@ -2165,7 +2162,7 @@ get_ctx_vol_failed:
 		static const char *es2 = ".  Run chkdsk.";
 
 		/* If a read-write mount, convert it to a read-only mount. */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!(vol->on_errors & (ON_ERRORS_REMOUNT_RO |
 					ON_ERRORS_CONTINUE))) {
 				ntfs_error(sb, "%s and neither on_errors="
@@ -2183,7 +2180,7 @@ get_ctx_vol_failed:
 		NVolSetErrors(vol);
 	}
 	/* If (still) a read-write mount, stamp the transaction log. */
-	if (!(sb->s_flags & MS_RDONLY) && !ntfs_stamp_usnjrnl(vol)) {
+	if (!sb_rdonly(sb) && !ntfs_stamp_usnjrnl(vol)) {
 		static const char *es1 = "Failed to stamp transaction log "
 				"($UsnJrnl)";
 		static const char *es2 = ".  Run chkdsk.";
@@ -2314,7 +2311,7 @@ static void ntfs_put_super(struct super_block *sb)
 	 * If a read-write mount and no volume errors have occurred, mark the
 	 * volume clean.  Also, re-commit all affected inodes.
 	 */
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		if (!NVolErrors(vol)) {
 			if (ntfs_clear_volume_flags(vol, VOLUME_IS_DIRTY))
 				ntfs_warning(sb, "Failed to clear dirty bit "
diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile
index 4342c7ee7d20..99ee093182cb 100644
--- a/fs/ocfs2/Makefile
+++ b/fs/ocfs2/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -Ifs/ocfs2
 
 obj-$(CONFIG_OCFS2_FS) += 	\
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index a177eae3aa1a..addd7c5f2d3e 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -7304,13 +7304,24 @@ out:
 
 static int ocfs2_trim_extent(struct super_block *sb,
 			     struct ocfs2_group_desc *gd,
-			     u32 start, u32 count)
+			     u64 group, u32 start, u32 count)
 {
 	u64 discard, bcount;
+	struct ocfs2_super *osb = OCFS2_SB(sb);
 
 	bcount = ocfs2_clusters_to_blocks(sb, count);
-	discard = le64_to_cpu(gd->bg_blkno) +
-			ocfs2_clusters_to_blocks(sb, start);
+	discard = ocfs2_clusters_to_blocks(sb, start);
+
+	/*
+	 * For the first cluster group, the gd->bg_blkno is not at the start
+	 * of the group, but at an offset from the start. If we add it while
+	 * calculating discard for first group, we will wrongly start fstrim a
+	 * few blocks after the desried start block and the range can cross
+	 * over into the next cluster group. So, add it only if this is not
+	 * the first cluster group.
+	 */
+	if (group != osb->first_cluster_group_blkno)
+		discard += le64_to_cpu(gd->bg_blkno);
 
 	trace_ocfs2_trim_extent(sb, (unsigned long long)discard, bcount);
 
@@ -7318,7 +7329,7 @@ static int ocfs2_trim_extent(struct super_block *sb,
 }
 
 static int ocfs2_trim_group(struct super_block *sb,
-			    struct ocfs2_group_desc *gd,
+			    struct ocfs2_group_desc *gd, u64 group,
 			    u32 start, u32 max, u32 minbits)
 {
 	int ret = 0, count = 0, next;
@@ -7337,7 +7348,7 @@ static int ocfs2_trim_group(struct super_block *sb,
 		next = ocfs2_find_next_bit(bitmap, max, start);
 
 		if ((next - start) >= minbits) {
-			ret = ocfs2_trim_extent(sb, gd,
+			ret = ocfs2_trim_extent(sb, gd, group,
 						start, next - start);
 			if (ret < 0) {
 				mlog_errno(ret);
@@ -7435,7 +7446,8 @@ int ocfs2_trim_fs(struct super_block *sb, struct fstrim_range *range)
 		}
 
 		gd = (struct ocfs2_group_desc *)gd_bh->b_data;
-		cnt = ocfs2_trim_group(sb, gd, first_bit, last_bit, minlen);
+		cnt = ocfs2_trim_group(sb, gd, group,
+				       first_bit, last_bit, minlen);
 		brelse(gd_bh);
 		gd_bh = NULL;
 		if (cnt < 0) {
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index d0206042d068..ea8c551bcd7e 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -2025,7 +2025,7 @@ static struct configfs_item_operations o2hb_region_item_ops = {
 	.release		= o2hb_region_release,
 };
 
-static struct config_item_type o2hb_region_type = {
+static const struct config_item_type o2hb_region_type = {
 	.ct_item_ops	= &o2hb_region_item_ops,
 	.ct_attrs	= o2hb_region_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -2310,7 +2310,7 @@ static struct configfs_group_operations o2hb_heartbeat_group_group_ops = {
 	.drop_item	= o2hb_heartbeat_group_drop_item,
 };
 
-static struct config_item_type o2hb_heartbeat_group_type = {
+static const struct config_item_type o2hb_heartbeat_group_type = {
 	.ct_group_ops	= &o2hb_heartbeat_group_group_ops,
 	.ct_attrs	= o2hb_heartbeat_group_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/fs/ocfs2/cluster/nodemanager.c b/fs/ocfs2/cluster/nodemanager.c
index b17d180bdc16..a51200ece93d 100644
--- a/fs/ocfs2/cluster/nodemanager.c
+++ b/fs/ocfs2/cluster/nodemanager.c
@@ -378,7 +378,7 @@ static struct configfs_item_operations o2nm_node_item_ops = {
 	.release		= o2nm_node_release,
 };
 
-static struct config_item_type o2nm_node_type = {
+static const struct config_item_type o2nm_node_type = {
 	.ct_item_ops	= &o2nm_node_item_ops,
 	.ct_attrs	= o2nm_node_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -619,7 +619,7 @@ static struct configfs_group_operations o2nm_node_group_group_ops = {
 	.drop_item	= o2nm_node_group_drop_item,
 };
 
-static struct config_item_type o2nm_node_group_type = {
+static const struct config_item_type o2nm_node_group_type = {
 	.ct_group_ops	= &o2nm_node_group_group_ops,
 	.ct_owner	= THIS_MODULE,
 };
@@ -637,7 +637,7 @@ static struct configfs_item_operations o2nm_cluster_item_ops = {
 	.release	= o2nm_cluster_release,
 };
 
-static struct config_item_type o2nm_cluster_type = {
+static const struct config_item_type o2nm_cluster_type = {
 	.ct_item_ops	= &o2nm_cluster_item_ops,
 	.ct_attrs	= o2nm_cluster_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -722,7 +722,7 @@ static struct configfs_group_operations o2nm_cluster_group_group_ops = {
 	.drop_item	= o2nm_cluster_group_drop_item,
 };
 
-static struct config_item_type o2nm_cluster_group_type = {
+static const struct config_item_type o2nm_cluster_group_type = {
 	.ct_group_ops	= &o2nm_cluster_group_group_ops,
 	.ct_owner	= THIS_MODULE,
 };
diff --git a/fs/ocfs2/ioctl.c b/fs/ocfs2/ioctl.c
index 4506ec5ec2ea..ab30c005cc4b 100644
--- a/fs/ocfs2/ioctl.c
+++ b/fs/ocfs2/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ocfs2/ioctl.c
  *
diff --git a/fs/ocfs2/ioctl.h b/fs/ocfs2/ioctl.h
index 0cd5323bd3f0..9f5e4d95e37f 100644
--- a/fs/ocfs2/ioctl.h
+++ b/fs/ocfs2/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ioctl.h
  *
diff --git a/fs/ocfs2/mmap.h b/fs/ocfs2/mmap.h
index 1274ee0f1fe2..1051507cc684 100644
--- a/fs/ocfs2/mmap.h
+++ b/fs/ocfs2/mmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef OCFS2_MMAP_H
 #define OCFS2_MMAP_H
 
diff --git a/fs/ocfs2/ocfs2_trace.h b/fs/ocfs2/ocfs2_trace.h
index 0b58abcf1c6d..a0b5d00ef0a9 100644
--- a/fs/ocfs2/ocfs2_trace.h
+++ b/fs/ocfs2/ocfs2_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ocfs2
 
diff --git a/fs/ocfs2/quota.h b/fs/ocfs2/quota.h
index d153e6e31529..ebb5c99f490e 100644
--- a/fs/ocfs2/quota.h
+++ b/fs/ocfs2/quota.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * quota.h for OCFS2
  *
diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c
index c94b6baaa551..b39d14cbfa34 100644
--- a/fs/ocfs2/quota_global.c
+++ b/fs/ocfs2/quota_global.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Implementation of operations over global quota file
  */
diff --git a/fs/ocfs2/quota_local.c b/fs/ocfs2/quota_local.c
index aa700fd10610..16c42ed0dca8 100644
--- a/fs/ocfs2/quota_local.c
+++ b/fs/ocfs2/quota_local.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Implementation of operations over local quota file
  */
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index 3f936be379a9..80733496b22a 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -675,7 +675,7 @@ static int ocfs2_remount(struct super_block *sb, int *flags, char *data)
 	}
 
 	/* We're going to/from readonly mode. */
-	if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY)) {
+	if ((bool)(*flags & MS_RDONLY) != sb_rdonly(sb)) {
 		/* Disable quota accounting before remounting RO */
 		if (*flags & MS_RDONLY) {
 			ret = ocfs2_susp_quotas(osb, 0);
@@ -1063,7 +1063,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 	/* Hard readonly mode only if: bdev_read_only, MS_RDONLY,
 	 * heartbeat=none */
 	if (bdev_read_only(sb->s_bdev)) {
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			status = -EACCES;
 			mlog(ML_ERROR, "Readonly device detected but readonly "
 			     "mount was not specified.\n");
@@ -1098,7 +1098,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	if (!ocfs2_is_hard_readonly(osb)) {
-		if (sb->s_flags & MS_RDONLY)
+		if (sb_rdonly(sb))
 			ocfs2_set_ro_flag(osb, 0);
 	}
 
@@ -1179,7 +1179,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 	/* Now we can initialize quotas because we can afford to wait
 	 * for cluster locks recovery now. That also means that truncation
 	 * log recovery can happen but that waits for proper quota setup */
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		status = ocfs2_enable_quotas(osb);
 		if (status < 0) {
 			/* We have to err-out specially here because
@@ -2180,8 +2180,7 @@ static int ocfs2_initialize_super(struct super_block *sb,
 		status = -EINVAL;
 		goto bail;
 	}
-	if (!(osb->sb->s_flags & MS_RDONLY) &&
-	    (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {
+	if (!sb_rdonly(osb->sb) && (i = OCFS2_HAS_RO_COMPAT_FEATURE(osb->sb, ~OCFS2_FEATURE_RO_COMPAT_SUPP))) {
 		mlog(ML_ERROR, "couldn't mount RDWR because of "
 		     "unsupported optional features (%x).\n", i);
 		status = -EINVAL;
@@ -2567,9 +2566,7 @@ static int ocfs2_handle_error(struct super_block *sb)
 		rv = -EIO;
 	} else { /* default option */
 		rv = -EROFS;
-		if (sb->s_flags & MS_RDONLY &&
-				(ocfs2_is_soft_readonly(osb) ||
-				 ocfs2_is_hard_readonly(osb)))
+		if (sb_rdonly(sb) && (ocfs2_is_soft_readonly(osb) || ocfs2_is_hard_readonly(osb)))
 			return rv;
 
 		pr_crit("OCFS2: File system is now read-only.\n");
diff --git a/fs/omfs/bitmap.c b/fs/omfs/bitmap.c
index 83f4e76511c2..7147ba6a6afc 100644
--- a/fs/omfs/bitmap.c
+++ b/fs/omfs/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/fs.h>
 #include <linux/buffer_head.h>
diff --git a/fs/omfs/omfs.h b/fs/omfs/omfs.h
index f0f8bc75e609..4008be73de54 100644
--- a/fs/omfs/omfs.h
+++ b/fs/omfs/omfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OMFS_H
 #define _OMFS_H
 
diff --git a/fs/omfs/omfs_fs.h b/fs/omfs/omfs_fs.h
index 83a98330ed66..caecb3d5a344 100644
--- a/fs/omfs/omfs_fs.h
+++ b/fs/omfs/omfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OMFS_FS_H
 #define _OMFS_FS_H
 
diff --git a/fs/orangefs/Makefile b/fs/orangefs/Makefile
index a9d6a968fe6d..9b6c50bb173b 100644
--- a/fs/orangefs/Makefile
+++ b/fs/orangefs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ORANGEFS filesystem.
 #
diff --git a/fs/orangefs/acl.c b/fs/orangefs/acl.c
index 7a3754488312..c2d8233b1e82 100644
--- a/fs/orangefs/acl.c
+++ b/fs/orangefs/acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
@@ -35,7 +36,7 @@ struct posix_acl *orangefs_get_acl(struct inode *inode, int type)
 	 * I don't do that for now.
 	 */
 	value = kmalloc(ORANGEFS_MAX_XATTR_VALUELEN, GFP_KERNEL);
-	if (value == NULL)
+	if (!value)
 		return ERR_PTR(-ENOMEM);
 
 	gossip_debug(GOSSIP_ACL_DEBUG,
@@ -61,9 +62,9 @@ struct posix_acl *orangefs_get_acl(struct inode *inode, int type)
 	return acl;
 }
 
-int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+static int __orangefs_set_acl(struct inode *inode, struct posix_acl *acl,
+			      int type)
 {
-	struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
 	int error = 0;
 	void *value = NULL;
 	size_t size = 0;
@@ -72,22 +73,6 @@ int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 	switch (type) {
 	case ACL_TYPE_ACCESS:
 		name = XATTR_NAME_POSIX_ACL_ACCESS;
-		if (acl) {
-			umode_t mode;
-
-			error = posix_acl_update_mode(inode, &mode, &acl);
-			if (error) {
-				gossip_err("%s: posix_acl_update_mode err: %d\n",
-					   __func__,
-					   error);
-				return error;
-			}
-
-			if (inode->i_mode != mode)
-				SetModeFlag(orangefs_inode);
-			inode->i_mode = mode;
-			mark_inode_dirty_sync(inode);
-		}
 		break;
 	case ACL_TYPE_DEFAULT:
 		name = XATTR_NAME_POSIX_ACL_DEFAULT;
@@ -132,6 +117,42 @@ out:
 	return error;
 }
 
+int orangefs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
+{
+	int error;
+	struct iattr iattr;
+	int rc;
+
+	if (type == ACL_TYPE_ACCESS && acl) {
+		/*
+		 * posix_acl_update_mode checks to see if the permissions
+		 * described by the ACL can be encoded into the
+		 * object's mode. If so, it sets "acl" to NULL
+		 * and "mode" to the new desired value. It is up to
+		 * us to propagate the new mode back to the server...
+		 */
+		error = posix_acl_update_mode(inode, &iattr.ia_mode, &acl);
+		if (error) {
+			gossip_err("%s: posix_acl_update_mode err: %d\n",
+				   __func__,
+				   error);
+			return error;
+		}
+
+		if (acl) {
+			rc = __orangefs_set_acl(inode, acl, type);
+		} else {
+			iattr.ia_valid = ATTR_MODE;
+			rc = orangefs_inode_setattr(inode, &iattr);
+		}
+
+		return rc;
+
+	} else {
+		return -EINVAL;
+	}
+}
+
 int orangefs_init_acl(struct inode *inode, struct inode *dir)
 {
 	struct orangefs_inode_s *orangefs_inode = ORANGEFS_I(inode);
@@ -146,13 +167,14 @@ int orangefs_init_acl(struct inode *inode, struct inode *dir)
 		return error;
 
 	if (default_acl) {
-		error = orangefs_set_acl(inode, default_acl, ACL_TYPE_DEFAULT);
+		error = __orangefs_set_acl(inode, default_acl,
+					   ACL_TYPE_DEFAULT);
 		posix_acl_release(default_acl);
 	}
 
 	if (acl) {
 		if (!error)
-			error = orangefs_set_acl(inode, acl, ACL_TYPE_ACCESS);
+			error = __orangefs_set_acl(inode, acl, ACL_TYPE_ACCESS);
 		posix_acl_release(acl);
 	}
 
diff --git a/fs/orangefs/dcache.c b/fs/orangefs/dcache.c
index 5355efba4bc8..ae782df5c063 100644
--- a/fs/orangefs/dcache.c
+++ b/fs/orangefs/dcache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/devorangefs-req.c b/fs/orangefs/devorangefs-req.c
index c19f0787c9c6..ded456f17de6 100644
--- a/fs/orangefs/devorangefs-req.c
+++ b/fs/orangefs/devorangefs-req.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
@@ -461,13 +462,10 @@ static ssize_t orangefs_devreq_write_iter(struct kiocb *iocb,
 	if (op->downcall.type != ORANGEFS_VFS_OP_READDIR)
 		goto wakeup;
 
-	op->downcall.trailer_buf =
-		vmalloc(op->downcall.trailer_size);
-	if (op->downcall.trailer_buf == NULL) {
-		gossip_err("%s: failed trailer vmalloc.\n",
-			   __func__);
+	op->downcall.trailer_buf = vmalloc(op->downcall.trailer_size);
+	if (!op->downcall.trailer_buf)
 		goto Enomem;
-	}
+
 	memset(op->downcall.trailer_buf, 0, op->downcall.trailer_size);
 	if (!copy_from_iter_full(op->downcall.trailer_buf,
 			         op->downcall.trailer_size, iter)) {
diff --git a/fs/orangefs/dir.c b/fs/orangefs/dir.c
index d327cbd17756..a8cc588d6224 100644
--- a/fs/orangefs/dir.c
+++ b/fs/orangefs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2017 Omnibond Systems, L.L.C.
  */
diff --git a/fs/orangefs/downcall.h b/fs/orangefs/downcall.h
index 163001c95501..ea2332e16af9 100644
--- a/fs/orangefs/downcall.h
+++ b/fs/orangefs/downcall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/file.c b/fs/orangefs/file.c
index 28f38d813ad2..e4a8e6a7eb17 100644
--- a/fs/orangefs/file.c
+++ b/fs/orangefs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
@@ -646,14 +647,11 @@ static int orangefs_fsync(struct file *file,
 		       loff_t end,
 		       int datasync)
 {
-	int ret = -EINVAL;
+	int ret;
 	struct orangefs_inode_s *orangefs_inode =
 		ORANGEFS_I(file_inode(file));
 	struct orangefs_kernel_op_s *new_op = NULL;
 
-	/* required call */
-	filemap_write_and_wait_range(file->f_mapping, start, end);
-
 	new_op = op_alloc(ORANGEFS_VFS_OP_FSYNC);
 	if (!new_op)
 		return -ENOMEM;
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 9428ea0aac16..28825a5b6d09 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/namei.c b/fs/orangefs/namei.c
index 478e88bd7f9d..7e9e5d0ea3bc 100644
--- a/fs/orangefs/namei.c
+++ b/fs/orangefs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/orangefs-bufmap.c b/fs/orangefs/orangefs-bufmap.c
index 038d67545d9f..59f444dced9b 100644
--- a/fs/orangefs/orangefs-bufmap.c
+++ b/fs/orangefs/orangefs-bufmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
@@ -244,20 +245,14 @@ orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
 
 	bufmap->buffer_index_array =
 		kzalloc(DIV_ROUND_UP(bufmap->desc_count, BITS_PER_LONG), GFP_KERNEL);
-	if (!bufmap->buffer_index_array) {
-		gossip_err("orangefs: could not allocate %d buffer indices\n",
-				bufmap->desc_count);
+	if (!bufmap->buffer_index_array)
 		goto out_free_bufmap;
-	}
 
 	bufmap->desc_array =
 		kcalloc(bufmap->desc_count, sizeof(struct orangefs_bufmap_desc),
 			GFP_KERNEL);
-	if (!bufmap->desc_array) {
-		gossip_err("orangefs: could not allocate %d descriptors\n",
-				bufmap->desc_count);
+	if (!bufmap->desc_array)
 		goto out_free_index_array;
-	}
 
 	bufmap->page_count = bufmap->total_size / PAGE_SIZE;
 
diff --git a/fs/orangefs/orangefs-bufmap.h b/fs/orangefs/orangefs-bufmap.h
index 71f64f4057b5..c2c3c5a0eeab 100644
--- a/fs/orangefs/orangefs-bufmap.h
+++ b/fs/orangefs/orangefs-bufmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/orangefs-cache.c b/fs/orangefs/orangefs-cache.c
index aa3830b741c7..3b6982bf6bcf 100644
--- a/fs/orangefs/orangefs-cache.c
+++ b/fs/orangefs/orangefs-cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/orangefs-debug.h b/fs/orangefs/orangefs-debug.h
index 387db17cde2b..b6001bb28f5a 100644
--- a/fs/orangefs/orangefs-debug.h
+++ b/fs/orangefs/orangefs-debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/orangefs-debugfs.c b/fs/orangefs/orangefs-debugfs.c
index 716ed337f166..1c59dff530de 100644
--- a/fs/orangefs/orangefs-debugfs.c
+++ b/fs/orangefs/orangefs-debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * What:		/sys/kernel/debug/orangefs/debug-help
  * Date:		June 2015
@@ -571,11 +572,8 @@ static int orangefs_prepare_cdm_array(char *debug_array_string)
 		goto out;
 	}
 
-	cdm_array =
-		kzalloc(cdm_element_count * sizeof(struct client_debug_mask),
-			GFP_KERNEL);
+	cdm_array = kcalloc(cdm_element_count, sizeof(*cdm_array), GFP_KERNEL);
 	if (!cdm_array) {
-		pr_info("malloc failed for cdm_array!\n");
 		rc = -ENOMEM;
 		goto out;
 	}
diff --git a/fs/orangefs/orangefs-debugfs.h b/fs/orangefs/orangefs-debugfs.h
index 803517269ba6..b5fd9cd4960f 100644
--- a/fs/orangefs/orangefs-debugfs.h
+++ b/fs/orangefs/orangefs-debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 int orangefs_debugfs_init(int);
 void orangefs_debugfs_cleanup(void);
 int orangefs_client_debug_init(void);
diff --git a/fs/orangefs/orangefs-dev-proto.h b/fs/orangefs/orangefs-dev-proto.h
index efe08c763e56..dc6609824965 100644
--- a/fs/orangefs/orangefs-dev-proto.h
+++ b/fs/orangefs/orangefs-dev-proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h
index ea0ce507a6ab..004af348fb80 100644
--- a/fs/orangefs/orangefs-kernel.h
+++ b/fs/orangefs/orangefs-kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/orangefs-mod.c b/fs/orangefs/orangefs-mod.c
index c1b5174cb5a9..85ef87245a87 100644
--- a/fs/orangefs/orangefs-mod.c
+++ b/fs/orangefs/orangefs-mod.c
@@ -98,7 +98,6 @@ static int __init orangefs_init(void)
 	orangefs_htable_ops_in_progress =
 	    kcalloc(hash_table_size, sizeof(struct list_head), GFP_KERNEL);
 	if (!orangefs_htable_ops_in_progress) {
-		gossip_err("Failed to initialize op hashtable");
 		ret = -ENOMEM;
 		goto cleanup_inode;
 	}
diff --git a/fs/orangefs/orangefs-sysfs.c b/fs/orangefs/orangefs-sysfs.c
index afd2f523b283..079a465796f3 100644
--- a/fs/orangefs/orangefs-sysfs.c
+++ b/fs/orangefs/orangefs-sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Documentation/ABI/stable/orangefs-sysfs:
  *
diff --git a/fs/orangefs/orangefs-utils.c b/fs/orangefs/orangefs-utils.c
index aab6f1842963..f82336496311 100644
--- a/fs/orangefs/orangefs-utils.c
+++ b/fs/orangefs/orangefs-utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/protocol.h b/fs/orangefs/protocol.h
index 48bcc1bbe415..e0bf5e4dce0d 100644
--- a/fs/orangefs/protocol.h
+++ b/fs/orangefs/protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/spinlock_types.h>
diff --git a/fs/orangefs/super.c b/fs/orangefs/super.c
index 5a1bed6c8c6a..47ebd9bfd1a1 100644
--- a/fs/orangefs/super.c
+++ b/fs/orangefs/super.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
@@ -107,10 +108,8 @@ static struct inode *orangefs_alloc_inode(struct super_block *sb)
 	struct orangefs_inode_s *orangefs_inode;
 
 	orangefs_inode = kmem_cache_alloc(orangefs_inode_cache, GFP_KERNEL);
-	if (orangefs_inode == NULL) {
-		gossip_err("Failed to allocate orangefs_inode\n");
+	if (!orangefs_inode)
 		return NULL;
-	}
 
 	/*
 	 * We want to clear everything except for rw_semaphore and the
diff --git a/fs/orangefs/symlink.c b/fs/orangefs/symlink.c
index 02b1bbdbcc42..d856cdf91763 100644
--- a/fs/orangefs/symlink.c
+++ b/fs/orangefs/symlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/upcall.h b/fs/orangefs/upcall.h
index b8249f8fdd80..16118452aa12 100644
--- a/fs/orangefs/upcall.h
+++ b/fs/orangefs/upcall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
diff --git a/fs/orangefs/waitqueue.c b/fs/orangefs/waitqueue.c
index 61e2ca7fec55..835c6e148afc 100644
--- a/fs/orangefs/waitqueue.c
+++ b/fs/orangefs/waitqueue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  * (C) 2011 Omnibond Systems
diff --git a/fs/orangefs/xattr.c b/fs/orangefs/xattr.c
index 237c9c04dc3b..03bcb871544d 100644
--- a/fs/orangefs/xattr.c
+++ b/fs/orangefs/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * (C) 2001 Clemson University and The University of Chicago
  *
@@ -76,7 +77,7 @@ ssize_t orangefs_inode_getxattr(struct inode *inode, const char *name,
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
 
-	if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
+	if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN)
 		return -EINVAL;
 
 	fsuid = from_kuid(&init_user_ns, current_fsuid());
@@ -169,7 +170,7 @@ static int orangefs_inode_removexattr(struct inode *inode, const char *name,
 	struct orangefs_kernel_op_s *new_op = NULL;
 	int ret = -ENOMEM;
 
-	if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
+	if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN)
 		return -EINVAL;
 
 	down_write(&orangefs_inode->xattr_sem);
@@ -233,13 +234,13 @@ int orangefs_inode_setxattr(struct inode *inode, const char *name,
 
 	if (size > ORANGEFS_MAX_XATTR_VALUELEN)
 		return -EINVAL;
-	if (strlen(name) > ORANGEFS_MAX_XATTR_NAMELEN)
+	if (strlen(name) >= ORANGEFS_MAX_XATTR_NAMELEN)
 		return -EINVAL;
 
 	internal_flag = convert_to_internal_xattr_flags(flags);
 
 	/* This is equivalent to a removexattr */
-	if (size == 0 && value == NULL) {
+	if (size == 0 && !value) {
 		gossip_debug(GOSSIP_XATTR_DEBUG,
 			     "removing xattr (%s)\n",
 			     name);
@@ -311,7 +312,7 @@ ssize_t orangefs_listxattr(struct dentry *dentry, char *buffer, size_t size)
 	int i = 0;
 	int returned_count = 0;
 
-	if (size > 0 && buffer == NULL) {
+	if (size > 0 && !buffer) {
 		gossip_err("%s: bogus NULL pointers\n", __func__);
 		return -EINVAL;
 	}
@@ -442,7 +443,7 @@ static int orangefs_xattr_get_default(const struct xattr_handler *handler,
 
 }
 
-static struct xattr_handler orangefs_xattr_default_handler = {
+static const struct xattr_handler orangefs_xattr_default_handler = {
 	.prefix = "",  /* match any name => handlers called with full name */
 	.get = orangefs_xattr_get_default,
 	.set = orangefs_xattr_set_default,
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index acb6f97deb97..c441f9387a1b 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -241,7 +241,7 @@ struct ovl_fh *ovl_encode_fh(struct dentry *lower, bool is_upper)
 	int buflen = MAX_HANDLE_SZ;
 	uuid_t *uuid = &lower->d_sb->s_uuid;
 
-	buf = kmalloc(buflen, GFP_TEMPORARY);
+	buf = kmalloc(buflen, GFP_KERNEL);
 	if (!buf)
 		return ERR_PTR(-ENOMEM);
 
@@ -561,10 +561,8 @@ static int ovl_do_copy_up(struct ovl_copy_up_ctx *c)
 		c->tmpfile = true;
 		err = ovl_copy_up_locked(c);
 	} else {
-		err = -EIO;
-		if (lock_rename(c->workdir, c->destdir) != NULL) {
-			pr_err("overlayfs: failed to lock workdir+upperdir\n");
-		} else {
+		err = ovl_lock_rename_workdir(c->workdir, c->destdir);
+		if (!err) {
 			err = ovl_copy_up_locked(c);
 			unlock_rename(c->workdir, c->destdir);
 		}
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 9cb0c80e5967..cc961a3bd3bd 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -216,26 +216,6 @@ out_unlock:
 	return err;
 }
 
-static int ovl_lock_rename_workdir(struct dentry *workdir,
-				   struct dentry *upperdir)
-{
-	/* Workdir should not be the same as upperdir */
-	if (workdir == upperdir)
-		goto err;
-
-	/* Workdir should not be subdir of upperdir and vice versa */
-	if (lock_rename(workdir, upperdir) != NULL)
-		goto err_unlock;
-
-	return 0;
-
-err_unlock:
-	unlock_rename(workdir, upperdir);
-err:
-	pr_err("overlayfs: failed to lock workdir+upperdir\n");
-	return -EIO;
-}
-
 static struct dentry *ovl_clear_empty(struct dentry *dentry,
 				      struct list_head *list)
 {
@@ -833,7 +813,7 @@ static char *ovl_get_redirect(struct dentry *dentry, bool samedir)
 		goto out;
 	}
 
-	buf = ret = kmalloc(buflen, GFP_TEMPORARY);
+	buf = ret = kmalloc(buflen, GFP_KERNEL);
 	if (!buf)
 		goto out;
 
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index a619addecafc..321511ed8c42 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -598,18 +598,30 @@ static bool ovl_verify_inode(struct inode *inode, struct dentry *lowerdentry,
 	return true;
 }
 
-struct inode *ovl_get_inode(struct dentry *dentry, struct dentry *upperdentry)
+struct inode *ovl_get_inode(struct dentry *dentry, struct dentry *upperdentry,
+			    struct dentry *index)
 {
 	struct dentry *lowerdentry = ovl_dentry_lower(dentry);
 	struct inode *realinode = upperdentry ? d_inode(upperdentry) : NULL;
 	struct inode *inode;
+	/* Already indexed or could be indexed on copy up? */
+	bool indexed = (index || (ovl_indexdir(dentry->d_sb) && !upperdentry));
+
+	if (WARN_ON(upperdentry && indexed && !lowerdentry))
+		return ERR_PTR(-EIO);
 
 	if (!realinode)
 		realinode = d_inode(lowerdentry);
 
-	if (!S_ISDIR(realinode->i_mode) &&
-	    (upperdentry || (lowerdentry && ovl_indexdir(dentry->d_sb)))) {
-		struct inode *key = d_inode(lowerdentry ?: upperdentry);
+	/*
+	 * Copy up origin (lower) may exist for non-indexed upper, but we must
+	 * not use lower as hash key in that case.
+	 * Hash inodes that are or could be indexed by origin inode and
+	 * non-indexed upper inodes that could be hard linked by upper inode.
+	 */
+	if (!S_ISDIR(realinode->i_mode) && (upperdentry || indexed)) {
+		struct inode *key = d_inode(indexed ? lowerdentry :
+						      upperdentry);
 		unsigned int nlink;
 
 		inode = iget5_locked(dentry->d_sb, (unsigned long) key,
diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c
index 8aef2b304b2d..a12dc10bf726 100644
--- a/fs/overlayfs/namei.c
+++ b/fs/overlayfs/namei.c
@@ -38,7 +38,7 @@ static int ovl_check_redirect(struct dentry *dentry, struct ovl_lookup_data *d,
 			return 0;
 		goto fail;
 	}
-	buf = kzalloc(prelen + res + strlen(post) + 1, GFP_TEMPORARY);
+	buf = kzalloc(prelen + res + strlen(post) + 1, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
 
@@ -103,7 +103,7 @@ static struct ovl_fh *ovl_get_origin_fh(struct dentry *dentry)
 	if (res == 0)
 		return NULL;
 
-	fh = kzalloc(res, GFP_TEMPORARY);
+	fh  = kzalloc(res, GFP_KERNEL);
 	if (!fh)
 		return ERR_PTR(-ENOMEM);
 
@@ -309,7 +309,7 @@ static int ovl_check_origin(struct dentry *upperdentry,
 
 	BUG_ON(*ctrp);
 	if (!*stackp)
-		*stackp = kmalloc(sizeof(struct path), GFP_TEMPORARY);
+		*stackp = kmalloc(sizeof(struct path), GFP_KERNEL);
 	if (!*stackp) {
 		dput(origin);
 		return -ENOMEM;
@@ -405,20 +405,19 @@ int ovl_verify_index(struct dentry *index, struct path *lowerstack,
 	 * be treated as stale (i.e. after unlink of the overlay inode).
 	 * We don't know the verification rules for directory and whiteout
 	 * index entries, because they have not been implemented yet, so return
-	 * EROFS if those entries are found to avoid corrupting an index that
-	 * was created by a newer kernel.
+	 * EINVAL if those entries are found to abort the mount to avoid
+	 * corrupting an index that was created by a newer kernel.
 	 */
-	err = -EROFS;
+	err = -EINVAL;
 	if (d_is_dir(index) || ovl_is_whiteout(index))
 		goto fail;
 
-	err = -EINVAL;
 	if (index->d_name.len < sizeof(struct ovl_fh)*2)
 		goto fail;
 
 	err = -ENOMEM;
 	len = index->d_name.len / 2;
-	fh = kzalloc(len, GFP_TEMPORARY);
+	fh = kzalloc(len, GFP_KERNEL);
 	if (!fh)
 		goto fail;
 
@@ -478,7 +477,7 @@ int ovl_get_index_name(struct dentry *origin, struct qstr *name)
 		return PTR_ERR(fh);
 
 	err = -ENOMEM;
-	n = kzalloc(fh->len * 2, GFP_TEMPORARY);
+	n = kzalloc(fh->len * 2, GFP_KERNEL);
 	if (n) {
 		s  = bin2hex(n, fh, fh->len);
 		*name = (struct qstr) QSTR_INIT(n, s - n);
@@ -506,6 +505,11 @@ static struct dentry *ovl_lookup_index(struct dentry *dentry,
 
 	index = lookup_one_len_unlocked(name.name, ofs->indexdir, name.len);
 	if (IS_ERR(index)) {
+		err = PTR_ERR(index);
+		if (err == -ENOENT) {
+			index = NULL;
+			goto out;
+		}
 		pr_warn_ratelimited("overlayfs: failed inode index lookup (ino=%lu, key=%*s, err=%i);\n"
 				    "overlayfs: mount with '-o index=off' to disable inodes index.\n",
 				    d_inode(origin)->i_ino, name.len, name.name,
@@ -515,18 +519,9 @@ static struct dentry *ovl_lookup_index(struct dentry *dentry,
 
 	inode = d_inode(index);
 	if (d_is_negative(index)) {
-		if (upper && d_inode(origin)->i_nlink > 1) {
-			pr_warn_ratelimited("overlayfs: hard link with origin but no index (ino=%lu).\n",
-					    d_inode(origin)->i_ino);
-			goto fail;
-		}
-
-		dput(index);
-		index = NULL;
+		goto out_dput;
 	} else if (upper && d_inode(upper) != inode) {
-		pr_warn_ratelimited("overlayfs: wrong index found (index=%pd2, ino=%lu, upper ino=%lu).\n",
-				    index, inode->i_ino, d_inode(upper)->i_ino);
-		goto fail;
+		goto out_dput;
 	} else if (ovl_dentry_weird(index) || ovl_is_whiteout(index) ||
 		   ((inode->i_mode ^ d_inode(origin)->i_mode) & S_IFMT)) {
 		/*
@@ -546,6 +541,11 @@ out:
 	kfree(name.name);
 	return index;
 
+out_dput:
+	dput(index);
+	index = NULL;
+	goto out;
+
 fail:
 	dput(index);
 	index = ERR_PTR(-EIO);
@@ -634,6 +634,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 		}
 
 		if (d.redirect) {
+			err = -ENOMEM;
 			upperredirect = kstrdup(d.redirect, GFP_KERNEL);
 			if (!upperredirect)
 				goto out_put_upper;
@@ -646,7 +647,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 	if (!d.stop && poe->numlower) {
 		err = -ENOMEM;
 		stack = kcalloc(ofs->numlower, sizeof(struct path),
-				GFP_TEMPORARY);
+				GFP_KERNEL);
 		if (!stack)
 			goto out_put_upper;
 	}
@@ -708,7 +709,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry,
 		upperdentry = dget(index);
 
 	if (upperdentry || ctr) {
-		inode = ovl_get_inode(dentry, upperdentry);
+		inode = ovl_get_inode(dentry, upperdentry, index);
 		err = PTR_ERR(inode);
 		if (IS_ERR(inode))
 			goto out_free_oe;
diff --git a/fs/overlayfs/overlayfs.h b/fs/overlayfs/overlayfs.h
index d4e8c1a08fb0..d9a0edd4e57e 100644
--- a/fs/overlayfs/overlayfs.h
+++ b/fs/overlayfs/overlayfs.h
@@ -235,6 +235,7 @@ bool ovl_inuse_trylock(struct dentry *dentry);
 void ovl_inuse_unlock(struct dentry *dentry);
 int ovl_nlink_start(struct dentry *dentry, bool *locked);
 void ovl_nlink_end(struct dentry *dentry, bool locked);
+int ovl_lock_rename_workdir(struct dentry *workdir, struct dentry *upperdir);
 
 static inline bool ovl_is_impuredir(struct dentry *dentry)
 {
@@ -285,7 +286,8 @@ int ovl_update_time(struct inode *inode, struct timespec *ts, int flags);
 bool ovl_is_private_xattr(const char *name);
 
 struct inode *ovl_new_inode(struct super_block *sb, umode_t mode, dev_t rdev);
-struct inode *ovl_get_inode(struct dentry *dentry, struct dentry *upperdentry);
+struct inode *ovl_get_inode(struct dentry *dentry, struct dentry *upperdentry,
+			    struct dentry *index);
 static inline void ovl_copyattr(struct inode *from, struct inode *to)
 {
 	to->i_uid = from->i_uid;
diff --git a/fs/overlayfs/ovl_entry.h b/fs/overlayfs/ovl_entry.h
index 878a750986dd..36b49bd09264 100644
--- a/fs/overlayfs/ovl_entry.h
+++ b/fs/overlayfs/ovl_entry.h
@@ -37,6 +37,9 @@ struct ovl_fs {
 	bool noxattr;
 	/* sb common to all layers */
 	struct super_block *same_sb;
+	/* Did we take the inuse lock? */
+	bool upperdir_locked;
+	bool workdir_locked;
 };
 
 /* private information held for every overlayfs dentry */
@@ -74,5 +77,5 @@ static inline struct ovl_inode *OVL_I(struct inode *inode)
 
 static inline struct dentry *ovl_upperdentry_dereference(struct ovl_inode *oi)
 {
-	return lockless_dereference(oi->__upperdentry);
+	return READ_ONCE(oi->__upperdentry);
 }
diff --git a/fs/overlayfs/readdir.c b/fs/overlayfs/readdir.c
index 62e9b22a2077..c310e3ff7f3f 100644
--- a/fs/overlayfs/readdir.c
+++ b/fs/overlayfs/readdir.c
@@ -754,7 +754,7 @@ static int ovl_dir_fsync(struct file *file, loff_t start, loff_t end,
 	if (!od->is_upper && OVL_TYPE_UPPER(ovl_path_type(dentry))) {
 		struct inode *inode = file_inode(file);
 
-		realfile = lockless_dereference(od->upperfile);
+		realfile = READ_ONCE(od->upperfile);
 		if (!realfile) {
 			struct path upperpath;
 
@@ -988,6 +988,7 @@ int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt,
 			 struct path *lowerstack, unsigned int numlower)
 {
 	int err;
+	struct dentry *index = NULL;
 	struct inode *dir = dentry->d_inode;
 	struct path path = { .mnt = mnt, .dentry = dentry };
 	LIST_HEAD(list);
@@ -1007,8 +1008,6 @@ int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt,
 
 	inode_lock_nested(dir, I_MUTEX_PARENT);
 	list_for_each_entry(p, &list, l_node) {
-		struct dentry *index;
-
 		if (p->name[0] == '.') {
 			if (p->len == 1)
 				continue;
@@ -1018,18 +1017,20 @@ int ovl_indexdir_cleanup(struct dentry *dentry, struct vfsmount *mnt,
 		index = lookup_one_len(p->name, dentry, p->len);
 		if (IS_ERR(index)) {
 			err = PTR_ERR(index);
+			index = NULL;
 			break;
 		}
 		err = ovl_verify_index(index, lowerstack, numlower);
-		if (err) {
-			if (err == -EROFS)
-				break;
+		/* Cleanup stale and orphan index entries */
+		if (err && (err == -ESTALE || err == -ENOENT))
 			err = ovl_cleanup(dir, index);
-			if (err)
-				break;
-		}
+		if (err)
+			break;
+
 		dput(index);
+		index = NULL;
 	}
+	dput(index);
 	inode_unlock(dir);
 out:
 	ovl_cache_free(&list);
diff --git a/fs/overlayfs/super.c b/fs/overlayfs/super.c
index cd49c0298ddf..f5738e96a052 100644
--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -174,6 +174,9 @@ static struct inode *ovl_alloc_inode(struct super_block *sb)
 {
 	struct ovl_inode *oi = kmem_cache_alloc(ovl_inode_cachep, GFP_KERNEL);
 
+	if (!oi)
+		return NULL;
+
 	oi->cache = NULL;
 	oi->redirect = NULL;
 	oi->version = 0;
@@ -211,9 +214,10 @@ static void ovl_put_super(struct super_block *sb)
 
 	dput(ufs->indexdir);
 	dput(ufs->workdir);
-	ovl_inuse_unlock(ufs->workbasedir);
+	if (ufs->workdir_locked)
+		ovl_inuse_unlock(ufs->workbasedir);
 	dput(ufs->workbasedir);
-	if (ufs->upper_mnt)
+	if (ufs->upper_mnt && ufs->upperdir_locked)
 		ovl_inuse_unlock(ufs->upper_mnt->mnt_root);
 	mntput(ufs->upper_mnt);
 	for (i = 0; i < ufs->numlower; i++)
@@ -870,7 +874,7 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 			goto out_free_config;
 
 		/* Upper fs should not be r/o */
-		if (upperpath.mnt->mnt_sb->s_flags & MS_RDONLY) {
+		if (sb_rdonly(upperpath.mnt->mnt_sb)) {
 			pr_err("overlayfs: upper fs is r/o, try multi-lower layers mount\n");
 			err = -EINVAL;
 			goto out_put_upperpath;
@@ -881,9 +885,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 			goto out_put_upperpath;
 
 		err = -EBUSY;
-		if (!ovl_inuse_trylock(upperpath.dentry)) {
-			pr_err("overlayfs: upperdir is in-use by another mount\n");
+		if (ovl_inuse_trylock(upperpath.dentry)) {
+			ufs->upperdir_locked = true;
+		} else if (ufs->config.index) {
+			pr_err("overlayfs: upperdir is in-use by another mount, mount with '-o index=off' to override exclusive upperdir protection.\n");
 			goto out_put_upperpath;
+		} else {
+			pr_warn("overlayfs: upperdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
 		}
 
 		err = ovl_mount_dir(ufs->config.workdir, &workpath);
@@ -901,9 +909,13 @@ static int ovl_fill_super(struct super_block *sb, void *data, int silent)
 		}
 
 		err = -EBUSY;
-		if (!ovl_inuse_trylock(workpath.dentry)) {
-			pr_err("overlayfs: workdir is in-use by another mount\n");
+		if (ovl_inuse_trylock(workpath.dentry)) {
+			ufs->workdir_locked = true;
+		} else if (ufs->config.index) {
+			pr_err("overlayfs: workdir is in-use by another mount, mount with '-o index=off' to override exclusive workdir protection.\n");
 			goto out_put_workpath;
+		} else {
+			pr_warn("overlayfs: workdir is in-use by another mount, accessing files from both mounts will result in undefined behavior.\n");
 		}
 
 		ufs->workbasedir = workpath.dentry;
@@ -1156,11 +1168,13 @@ out_put_lowerpath:
 out_free_lowertmp:
 	kfree(lowertmp);
 out_unlock_workdentry:
-	ovl_inuse_unlock(workpath.dentry);
+	if (ufs->workdir_locked)
+		ovl_inuse_unlock(workpath.dentry);
 out_put_workpath:
 	path_put(&workpath);
 out_unlock_upperdentry:
-	ovl_inuse_unlock(upperpath.dentry);
+	if (ufs->upperdir_locked)
+		ovl_inuse_unlock(upperpath.dentry);
 out_put_upperpath:
 	path_put(&upperpath);
 out_free_config:
diff --git a/fs/overlayfs/util.c b/fs/overlayfs/util.c
index 117794582f9f..b9b239fa5cfd 100644
--- a/fs/overlayfs/util.c
+++ b/fs/overlayfs/util.c
@@ -430,7 +430,7 @@ void ovl_inuse_unlock(struct dentry *dentry)
 	}
 }
 
-/* Called must hold OVL_I(inode)->oi_lock */
+/* Caller must hold OVL_I(inode)->lock */
 static void ovl_cleanup_index(struct dentry *dentry)
 {
 	struct inode *dir = ovl_indexdir(dentry->d_sb)->d_inode;
@@ -469,6 +469,9 @@ static void ovl_cleanup_index(struct dentry *dentry)
 	err = PTR_ERR(index);
 	if (!IS_ERR(index))
 		err = ovl_cleanup(dir, index);
+	else
+		index = NULL;
+
 	inode_unlock(dir);
 	if (err)
 		goto fail;
@@ -557,3 +560,22 @@ void ovl_nlink_end(struct dentry *dentry, bool locked)
 		mutex_unlock(&OVL_I(d_inode(dentry))->lock);
 	}
 }
+
+int ovl_lock_rename_workdir(struct dentry *workdir, struct dentry *upperdir)
+{
+	/* Workdir should not be the same as upperdir */
+	if (workdir == upperdir)
+		goto err;
+
+	/* Workdir should not be subdir of upperdir and vice versa */
+	if (lock_rename(workdir, upperdir) != NULL)
+		goto err_unlock;
+
+	return 0;
+
+err_unlock:
+	unlock_rename(workdir, upperdir);
+err:
+	pr_err("overlayfs: failed to lock workdir+upperdir\n");
+	return -EIO;
+}
diff --git a/fs/pipe.c b/fs/pipe.c
index 97e5be897753..349c9d56d4b3 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/pipe.c
  *
diff --git a/fs/proc/Makefile b/fs/proc/Makefile
index 12c6922c913c..f7456c4e7d0f 100644
--- a/fs/proc/Makefile
+++ b/fs/proc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux proc filesystem routines.
 #
diff --git a/fs/proc/array.c b/fs/proc/array.c
index 88c355574aa0..6f6fc1672ad1 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/proc/array.c
  *
@@ -62,6 +63,7 @@
 #include <linux/mman.h>
 #include <linux/sched/mm.h>
 #include <linux/sched/numa_balancing.h>
+#include <linux/sched/task_stack.h>
 #include <linux/sched/task.h>
 #include <linux/sched/cputime.h>
 #include <linux/proc_fs.h>
@@ -118,30 +120,25 @@ static inline void task_name(struct seq_file *m, struct task_struct *p)
  * simple bit tests.
  */
 static const char * const task_state_array[] = {
-	"R (running)",		/*   0 */
-	"S (sleeping)",		/*   1 */
-	"D (disk sleep)",	/*   2 */
-	"T (stopped)",		/*   4 */
-	"t (tracing stop)",	/*   8 */
-	"X (dead)",		/*  16 */
-	"Z (zombie)",		/*  32 */
+
+	/* states in TASK_REPORT: */
+	"R (running)",		/* 0x00 */
+	"S (sleeping)",		/* 0x01 */
+	"D (disk sleep)",	/* 0x02 */
+	"T (stopped)",		/* 0x04 */
+	"t (tracing stop)",	/* 0x08 */
+	"X (dead)",		/* 0x10 */
+	"Z (zombie)",		/* 0x20 */
+	"P (parked)",		/* 0x40 */
+
+	/* states beyond TASK_REPORT: */
+	"I (idle)",		/* 0x80 */
 };
 
 static inline const char *get_task_state(struct task_struct *tsk)
 {
-	unsigned int state = (tsk->state | tsk->exit_state) & TASK_REPORT;
-
-	/*
-	 * Parked tasks do not run; they sit in __kthread_parkme().
-	 * Without this check, we would report them as running, which is
-	 * clearly wrong, so we report them as sleeping instead.
-	 */
-	if (tsk->state == TASK_PARKED)
-		state = TASK_INTERRUPTIBLE;
-
-	BUILD_BUG_ON(1 + ilog2(TASK_REPORT) != ARRAY_SIZE(task_state_array)-1);
-
-	return task_state_array[fls(state)];
+	BUILD_BUG_ON(1 + ilog2(TASK_REPORT_MAX) != ARRAY_SIZE(task_state_array));
+	return task_state_array[task_state_index(tsk)];
 }
 
 static inline int get_task_umask(struct task_struct *tsk)
@@ -421,7 +418,15 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 		 * esp and eip are intentionally zeroed out.  There is no
 		 * non-racy way to read them without freezing the task.
 		 * Programs that need reliable values can use ptrace(2).
+		 *
+		 * The only exception is if the task is core dumping because
+		 * a program is not able to use ptrace(2) in that case. It is
+		 * safe because the task has stopped executing permanently.
 		 */
+		if (permitted && (task->flags & PF_DUMPCORE)) {
+			eip = KSTK_EIP(task);
+			esp = KSTK_ESP(task);
+		}
 	}
 
 	get_task_comm(tcomm, task);
@@ -449,7 +454,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
 		cutime = sig->cutime;
 		cstime = sig->cstime;
 		cgtime = sig->cgtime;
-		rsslim = ACCESS_ONCE(sig->rlim[RLIMIT_RSS].rlim_cur);
+		rsslim = READ_ONCE(sig->rlim[RLIMIT_RSS].rlim_cur);
 
 		/* add up live thread stats at the group level */
 		if (whole) {
diff --git a/fs/proc/base.c b/fs/proc/base.c
index e5d89a0d0b8a..9d357b2ea6cb 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/proc/base.c
  *
@@ -232,7 +233,7 @@ static ssize_t proc_pid_cmdline_read(struct file *file, char __user *buf,
 		goto out_mmput;
 	}
 
-	page = (char *)__get_free_page(GFP_TEMPORARY);
+	page = (char *)__get_free_page(GFP_KERNEL);
 	if (!page) {
 		rv = -ENOMEM;
 		goto out_mmput;
@@ -813,7 +814,7 @@ static ssize_t mem_rw(struct file *file, char __user *buf,
 	if (!mm)
 		return 0;
 
-	page = (char *)__get_free_page(GFP_TEMPORARY);
+	page = (char *)__get_free_page(GFP_KERNEL);
 	if (!page)
 		return -ENOMEM;
 
@@ -918,7 +919,7 @@ static ssize_t environ_read(struct file *file, char __user *buf,
 	if (!mm || !mm->env_end)
 		return 0;
 
-	page = (char *)__get_free_page(GFP_TEMPORARY);
+	page = (char *)__get_free_page(GFP_KERNEL);
 	if (!page)
 		return -ENOMEM;
 
@@ -1630,7 +1631,7 @@ out:
 
 static int do_proc_readlink(struct path *path, char __user *buffer, int buflen)
 {
-	char *tmp = (char*)__get_free_page(GFP_TEMPORARY);
+	char *tmp = (char *)__get_free_page(GFP_KERNEL);
 	char *pathname;
 	int len;
 
diff --git a/fs/proc/cmdline.c b/fs/proc/cmdline.c
index cbd82dff7e81..403cbb12a6e9 100644
--- a/fs/proc/cmdline.c
+++ b/fs/proc/cmdline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
diff --git a/fs/proc/cpuinfo.c b/fs/proc/cpuinfo.c
index 06f4d31e0396..e0f867cd8553 100644
--- a/fs/proc/cpuinfo.c
+++ b/fs/proc/cpuinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
diff --git a/fs/proc/devices.c b/fs/proc/devices.c
index e5709343feb7..2c7f22b14489 100644
--- a/fs/proc/devices.c
+++ b/fs/proc/devices.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
diff --git a/fs/proc/fd.c b/fs/proc/fd.c
index c330495c3115..96fc70225e54 100644
--- a/fs/proc/fd.c
+++ b/fs/proc/fd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched/signal.h>
 #include <linux/errno.h>
 #include <linux/dcache.h>
diff --git a/fs/proc/fd.h b/fs/proc/fd.h
index 46dafadd0083..f371a602bf58 100644
--- a/fs/proc/fd.h
+++ b/fs/proc/fd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PROCFS_FD_H__
 #define __PROCFS_FD_H__
 
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index e250910cffc8..225f541f7078 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/proc/inode.c
  *
diff --git a/fs/proc/interrupts.c b/fs/proc/interrupts.c
index a352d5703b41..6a6bee9c603c 100644
--- a/fs/proc/interrupts.c
+++ b/fs/proc/interrupts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 45629f4b5402..4bc85cb8be6a 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	fs/proc/kcore.c kernel ELF core dumper
  *
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index f9387bb7631b..e0f8774acd65 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/proc/kmsg.c
  *
diff --git a/fs/proc/loadavg.c b/fs/proc/loadavg.c
index 983fce5c2418..9bc5c58c00ee 100644
--- a/fs/proc/loadavg.c
+++ b/fs/proc/loadavg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/pid_namespace.h>
diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index cdd979724c74..6bb20f864259 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index 3803b24ca220..59b17e509f46 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/proc_fs.h>
 #include <linux/nsproxy.h>
 #include <linux/ptrace.h>
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 2726536489b1..1491918a33c3 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bootmem.h>
 #include <linux/compiler.h>
 #include <linux/fs.h>
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 8f479229b349..c5cbbdff3c3d 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * /proc/sys support
  */
diff --git a/fs/proc/proc_tty.c b/fs/proc/proc_tty.c
index 901bd06f437d..d0cf1c50bb6c 100644
--- a/fs/proc/proc_tty.c
+++ b/fs/proc/proc_tty.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * proc_tty.c -- handles /proc/tty
  *
@@ -14,6 +15,7 @@
 #include <linux/tty.h>
 #include <linux/seq_file.h>
 #include <linux/bitops.h>
+#include "internal.h"
 
 /*
  * The /proc/tty directory inodes...
@@ -164,7 +166,7 @@ void proc_tty_unregister_driver(struct tty_driver *driver)
 	if (!ent)
 		return;
 		
-	remove_proc_entry(driver->driver_name, proc_tty_driver);
+	remove_proc_entry(ent->name, proc_tty_driver);
 	
 	driver->proc_entry = NULL;
 }
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 926fb27f4ca2..4e42aba97f2e 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/proc/root.c
  *
diff --git a/fs/proc/self.c b/fs/proc/self.c
index 39857f6db5cf..31326bb23b8b 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/pid_namespace.h>
diff --git a/fs/proc/softirqs.c b/fs/proc/softirqs.c
index ad8a77f94beb..24072cc06e65 100644
--- a/fs/proc/softirqs.c
+++ b/fs/proc/softirqs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/kernel_stat.h>
 #include <linux/proc_fs.h>
diff --git a/fs/proc/stat.c b/fs/proc/stat.c
index bd4e55f4aa20..59749dfaef67 100644
--- a/fs/proc/stat.c
+++ b/fs/proc/stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cpumask.h>
 #include <linux/fs.h>
 #include <linux/init.h>
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 7b40e11ede9b..6744bd706ecf 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/vmacache.h>
 #include <linux/hugetlb.h>
@@ -1310,13 +1311,15 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end,
 		pmd_t pmd = *pmdp;
 		struct page *page = NULL;
 
-		if ((vma->vm_flags & VM_SOFTDIRTY) || pmd_soft_dirty(pmd))
+		if (vma->vm_flags & VM_SOFTDIRTY)
 			flags |= PM_SOFT_DIRTY;
 
 		if (pmd_present(pmd)) {
 			page = pmd_page(pmd);
 
 			flags |= PM_PRESENT;
+			if (pmd_soft_dirty(pmd))
+				flags |= PM_SOFT_DIRTY;
 			if (pm->show_pfn)
 				frame = pmd_pfn(pmd) +
 					((addr & ~PMD_MASK) >> PAGE_SHIFT);
@@ -1328,6 +1331,8 @@ static int pagemap_pmd_range(pmd_t *pmdp, unsigned long addr, unsigned long end,
 			frame = swp_type(entry) |
 				(swp_offset(entry) << MAX_SWAPFILES_SHIFT);
 			flags |= PM_SWAP;
+			if (pmd_swp_soft_dirty(pmd))
+				flags |= PM_SOFT_DIRTY;
 			VM_BUG_ON(!is_pmd_migration_entry(pmd));
 			page = migration_entry_to_page(entry);
 		}
@@ -1474,7 +1479,7 @@ static ssize_t pagemap_read(struct file *file, char __user *buf,
 	pm.show_pfn = file_ns_capable(file, &init_user_ns, CAP_SYS_ADMIN);
 
 	pm.len = (PAGEMAP_WALK_SIZE >> PAGE_SHIFT);
-	pm.buffer = kmalloc(pm.len * PM_ENTRY_BYTES, GFP_TEMPORARY);
+	pm.buffer = kmalloc(pm.len * PM_ENTRY_BYTES, GFP_KERNEL);
 	ret = -ENOMEM;
 	if (!pm.buffer)
 		goto out_mm;
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index dea90b566a6e..5b62f57bd9bc 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/mm.h>
 #include <linux/file.h>
@@ -145,7 +146,6 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
 			  int is_pid)
 {
 	struct mm_struct *mm = vma->vm_mm;
-	struct proc_maps_private *priv = m->private;
 	unsigned long ino = 0;
 	struct file *file;
 	dev_t dev = 0;
diff --git a/fs/proc/thread_self.c b/fs/proc/thread_self.c
index 20614b62a9b7..b813e3b529f2 100644
--- a/fs/proc/thread_self.c
+++ b/fs/proc/thread_self.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/pid_namespace.h>
diff --git a/fs/proc/uptime.c b/fs/proc/uptime.c
index 7981c4ffe787..95a708d83721 100644
--- a/fs/proc/uptime.c
+++ b/fs/proc/uptime.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/proc_fs.h>
diff --git a/fs/proc/version.c b/fs/proc/version.c
index d2154eb6d78f..94901e8e700d 100644
--- a/fs/proc/version.c
+++ b/fs/proc/version.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index b5713fefb4c1..7b635d173213 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fs/proc_namespace.c - handling of /proc/<pid>/{mounts,mountinfo,mountstats}
  *
@@ -27,7 +28,7 @@ static unsigned mounts_poll(struct file *file, poll_table *wait)
 
 	poll_wait(file, &p->ns->poll, wait);
 
-	event = ACCESS_ONCE(ns->event);
+	event = READ_ONCE(ns->event);
 	if (m->poll_event != event) {
 		m->poll_event = event;
 		res |= POLLERR | POLLPRI;
@@ -178,7 +179,7 @@ static int show_mountinfo(struct seq_file *m, struct vfsmount *mnt)
 	} else {
 		mangle(m, r->mnt_devname ? r->mnt_devname : "none");
 	}
-	seq_puts(m, sb->s_flags & MS_RDONLY ? " ro" : " rw");
+	seq_puts(m, sb_rdonly(sb) ? " ro" : " rw");
 	err = show_sb_opts(m, sb);
 	if (err)
 		goto out;
diff --git a/fs/pstore/Makefile b/fs/pstore/Makefile
index b8803cc07fce..967b5891f325 100644
--- a/fs/pstore/Makefile
+++ b/fs/pstore/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux pstorefs routines.
 #
diff --git a/fs/pstore/internal.h b/fs/pstore/internal.h
index 7f4e48c8d188..c029314478fa 100644
--- a/fs/pstore/internal.h
+++ b/fs/pstore/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PSTORE_INTERNAL_H__
 #define __PSTORE_INTERNAL_H__
 
diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index 2b21d180157c..086e491faf04 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -62,7 +62,7 @@ MODULE_PARM_DESC(update_ms, "milliseconds before pstore updates its content "
 static int pstore_new_entry;
 
 static void pstore_timefunc(unsigned long);
-static DEFINE_TIMER(pstore_timer, pstore_timefunc, 0, 0);
+static DEFINE_TIMER(pstore_timer, pstore_timefunc);
 
 static void pstore_dowork(struct work_struct *);
 static DECLARE_WORK(pstore_work, pstore_dowork);
@@ -482,10 +482,7 @@ void pstore_record_init(struct pstore_record *record,
 	record->psi = psinfo;
 
 	/* Report zeroed timestamp if called before timekeeping has resumed. */
-	if (__getnstimeofday(&record->time)) {
-		record->time.tv_sec = 0;
-		record->time.tv_nsec = 0;
-	}
+	record->time = ns_to_timespec(ktime_get_real_fast_ns());
 }
 
 /*
diff --git a/fs/qnx4/bitmap.c b/fs/qnx4/bitmap.c
index 76a7a697b778..163afc4ba4b2 100644
--- a/fs/qnx4/bitmap.c
+++ b/fs/qnx4/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * QNX4 file system, Linux implementation.
  *
diff --git a/fs/qnx4/dir.c b/fs/qnx4/dir.c
index 781056a0480f..a6ee23aadd28 100644
--- a/fs/qnx4/dir.c
+++ b/fs/qnx4/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * QNX4 file system, Linux implementation.
  *
diff --git a/fs/qnx4/namei.c b/fs/qnx4/namei.c
index e62c8183777a..eca27878079d 100644
--- a/fs/qnx4/namei.c
+++ b/fs/qnx4/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* 
  * QNX4 file system, Linux implementation.
  * 
diff --git a/fs/qnx4/qnx4.h b/fs/qnx4/qnx4.h
index c9b1be2c164d..6283705466a4 100644
--- a/fs/qnx4/qnx4.h
+++ b/fs/qnx4/qnx4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fs.h>
 #include <linux/qnx4_fs.h>
 
diff --git a/fs/qnx6/dir.c b/fs/qnx6/dir.c
index 27637e0bdc9f..c1cfb8a19e9d 100644
--- a/fs/qnx6/dir.c
+++ b/fs/qnx6/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * QNX6 file system, Linux implementation.
  *
diff --git a/fs/qnx6/namei.c b/fs/qnx6/namei.c
index 6c1a323137dd..72c2770830be 100644
--- a/fs/qnx6/namei.c
+++ b/fs/qnx6/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * QNX6 file system, Linux implementation.
  *
diff --git a/fs/qnx6/qnx6.h b/fs/qnx6/qnx6.h
index f23b5c4a66ad..34a6b126a3a9 100644
--- a/fs/qnx6/qnx6.h
+++ b/fs/qnx6/qnx6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * QNX6 file system, Linux implementation.
  *
diff --git a/fs/qnx6/super_mmi.c b/fs/qnx6/super_mmi.c
index 62aaf3e3126a..d282c2c73404 100644
--- a/fs/qnx6/super_mmi.c
+++ b/fs/qnx6/super_mmi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * QNX6 file system, Linux implementation.
  *
diff --git a/fs/quota/Makefile b/fs/quota/Makefile
index c66c37cdaa39..f2b49d0f0287 100644
--- a/fs/quota/Makefile
+++ b/fs/quota/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_QUOTA)		+= dquot.o
 obj-$(CONFIG_QFMT_V1)		+= quota_v1.o
 obj-$(CONFIG_QFMT_V2)		+= quota_v2.o
diff --git a/fs/quota/compat.c b/fs/quota/compat.c
index fb1892fe3e56..779caed4f078 100644
--- a/fs/quota/compat.c
+++ b/fs/quota/compat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/syscalls.h>
 #include <linux/compat.h>
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index 8381db9db6d9..39f1b0b0c76f 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of the diskquota system for the LINUX operating system. QUOTA
  * is implemented using the BSD system call interface as the means of
@@ -644,8 +645,15 @@ int dquot_writeback_dquots(struct super_block *sb, int type)
 			spin_unlock(&dq_list_lock);
 			dqstats_inc(DQST_LOOKUPS);
 			err = sb->dq_op->write_dquot(dquot);
-			if (!ret && err)
-				ret = err;
+			if (err) {
+				/*
+				 * Clear dirty bit anyway to avoid infinite
+				 * loop here.
+				 */
+				clear_dquot_dirty(dquot);
+				if (!ret)
+					ret = err;
+			}
 			dqput(dquot);
 			spin_lock(&dq_list_lock);
 		}
@@ -1297,21 +1305,18 @@ static int dquot_add_space(struct dquot *dquot, qsize_t space,
 	spin_lock(&dquot->dq_dqb_lock);
 	if (!sb_has_quota_limits_enabled(sb, dquot->dq_id.type) ||
 	    test_bit(DQ_FAKE_B, &dquot->dq_flags))
-		goto add;
+		goto finish;
 
 	tspace = dquot->dq_dqb.dqb_curspace + dquot->dq_dqb.dqb_rsvspace
 		+ space + rsv_space;
 
-	if (flags & DQUOT_SPACE_NOFAIL)
-		goto add;
-
 	if (dquot->dq_dqb.dqb_bhardlimit &&
 	    tspace > dquot->dq_dqb.dqb_bhardlimit &&
             !ignore_hardlimit(dquot)) {
 		if (flags & DQUOT_SPACE_WARN)
 			prepare_warning(warn, dquot, QUOTA_NL_BHARDWARN);
 		ret = -EDQUOT;
-		goto out;
+		goto finish;
 	}
 
 	if (dquot->dq_dqb.dqb_bsoftlimit &&
@@ -1322,7 +1327,7 @@ static int dquot_add_space(struct dquot *dquot, qsize_t space,
 		if (flags & DQUOT_SPACE_WARN)
 			prepare_warning(warn, dquot, QUOTA_NL_BSOFTLONGWARN);
 		ret = -EDQUOT;
-		goto out;
+		goto finish;
 	}
 
 	if (dquot->dq_dqb.dqb_bsoftlimit &&
@@ -1338,13 +1343,21 @@ static int dquot_add_space(struct dquot *dquot, qsize_t space,
 			 * be always printed
 			 */
 			ret = -EDQUOT;
-			goto out;
+			goto finish;
 		}
 	}
-add:
-	dquot->dq_dqb.dqb_rsvspace += rsv_space;
-	dquot->dq_dqb.dqb_curspace += space;
-out:
+finish:
+	/*
+	 * We have to be careful and go through warning generation & grace time
+	 * setting even if DQUOT_SPACE_NOFAIL is set. That's why we check it
+	 * only here...
+	 */
+	if (flags & DQUOT_SPACE_NOFAIL)
+		ret = 0;
+	if (!ret) {
+		dquot->dq_dqb.dqb_rsvspace += rsv_space;
+		dquot->dq_dqb.dqb_curspace += space;
+	}
 	spin_unlock(&dquot->dq_dqb_lock);
 	return ret;
 }
@@ -1980,7 +1993,9 @@ int __dquot_transfer(struct inode *inode, struct dquot **transfer_to)
 		ret = dquot_add_space(transfer_to[cnt], cur_space, rsv_space, 0,
 				      &warn_to[cnt]);
 		if (ret) {
+			spin_lock(&transfer_to[cnt]->dq_dqb_lock);
 			dquot_decr_inodes(transfer_to[cnt], inode_usage);
+			spin_unlock(&transfer_to[cnt]->dq_dqb_lock);
 			goto over_quota;
 		}
 	}
@@ -2131,7 +2146,7 @@ int dquot_file_open(struct inode *inode, struct file *file)
 
 	error = generic_file_open(inode, file);
 	if (!error && (file->f_mode & FMODE_WRITE))
-		dquot_initialize(inode);
+		error = dquot_initialize(inode);
 	return error;
 }
 EXPORT_SYMBOL(dquot_file_open);
diff --git a/fs/quota/kqid.c b/fs/quota/kqid.c
index ebc5e6285800..f814fa90af38 100644
--- a/fs/quota/kqid.c
+++ b/fs/quota/kqid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fs.h>
 #include <linux/quota.h>
 #include <linux/export.h>
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index e99b1a72d9a7..95acdae391b4 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cred.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index 07e08c7d05ca..43612e2a73af 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Quota code necessary even when VFS quota support is not compiled
  * into the kernel.  The interesting stuff is over in dquot.c, here
@@ -753,7 +754,7 @@ static int do_quotactl(struct super_block *sb, int type, int cmd, qid_t id,
 	case Q_XGETNEXTQUOTA:
 		return quota_getnextxquota(sb, type, id, addr);
 	case Q_XQUOTASYNC:
-		if (sb->s_flags & MS_RDONLY)
+		if (sb_rdonly(sb))
 			return -EROFS;
 		/* XFS quotas are fully coherent now, making this call a noop */
 		return 0;
diff --git a/fs/quota/quota_tree.h b/fs/quota/quota_tree.h
index a1ab8db81a51..31cf27e0e9e0 100644
--- a/fs/quota/quota_tree.h
+++ b/fs/quota/quota_tree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Definitions of structures for vfsv0 quota format
  */
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index c0187cda2c1e..a73e5b34db41 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -328,12 +328,16 @@ static int v2_write_dquot(struct dquot *dquot)
 	if (!dquot->dq_off) {
 		alloc = true;
 		down_write(&dqopt->dqio_sem);
+	} else {
+		down_read(&dqopt->dqio_sem);
 	}
 	ret = qtree_write_dquot(
 			sb_dqinfo(dquot->dq_sb, dquot->dq_id.type)->dqi_priv,
 			dquot);
 	if (alloc)
 		up_write(&dqopt->dqio_sem);
+	else
+		up_read(&dqopt->dqio_sem);
 	return ret;
 }
 
diff --git a/fs/quota/quotaio_v1.h b/fs/quota/quotaio_v1.h
index 746654b5de70..bd11e2c08119 100644
--- a/fs/quota/quotaio_v1.h
+++ b/fs/quota/quotaio_v1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_QUOTAIO_V1_H
 #define _LINUX_QUOTAIO_V1_H
 
diff --git a/fs/quota/quotaio_v2.h b/fs/quota/quotaio_v2.h
index 4e95430093d9..43cf0f0e2902 100644
--- a/fs/quota/quotaio_v2.h
+++ b/fs/quota/quotaio_v2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Definitions of structures for vfsv0 quota format
  */
diff --git a/fs/read_write.c b/fs/read_write.c
index 61b58c7b6531..0046d72efe94 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/read_write.c
  *
@@ -112,7 +113,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int whence,
 		 * In the generic case the entire file is data, so as long as
 		 * offset isn't at the end of the file then the offset is data.
 		 */
-		if (offset >= eof)
+		if ((unsigned long long)offset >= eof)
 			return -ENXIO;
 		break;
 	case SEEK_HOLE:
@@ -120,7 +121,7 @@ generic_file_llseek_size(struct file *file, loff_t offset, int whence,
 		 * There is a virtual hole at the end of the file, so as long as
 		 * offset isn't i_size or larger, return i_size.
 		 */
-		if (offset >= eof)
+		if ((unsigned long long)offset >= eof)
 			return -ENXIO;
 		offset = eof;
 		break;
@@ -413,7 +414,20 @@ ssize_t __vfs_read(struct file *file, char __user *buf, size_t count,
 	else
 		return -EINVAL;
 }
-EXPORT_SYMBOL(__vfs_read);
+
+ssize_t kernel_read(struct file *file, void *buf, size_t count, loff_t *pos)
+{
+	mm_segment_t old_fs;
+	ssize_t result;
+
+	old_fs = get_fs();
+	set_fs(get_ds());
+	/* The cast to a user pointer is valid due to the set_fs() */
+	result = vfs_read(file, (void __user *)buf, count, pos);
+	set_fs(old_fs);
+	return result;
+}
+EXPORT_SYMBOL(kernel_read);
 
 ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
 {
@@ -441,8 +455,6 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
 	return ret;
 }
 
-EXPORT_SYMBOL(vfs_read);
-
 static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos)
 {
 	struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len };
@@ -471,9 +483,8 @@ ssize_t __vfs_write(struct file *file, const char __user *p, size_t count,
 	else
 		return -EINVAL;
 }
-EXPORT_SYMBOL(__vfs_write);
 
-ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t *pos)
+ssize_t __kernel_write(struct file *file, const void *buf, size_t count, loff_t *pos)
 {
 	mm_segment_t old_fs;
 	const char __user *p;
@@ -496,9 +507,24 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
 	inc_syscw(current);
 	return ret;
 }
-
 EXPORT_SYMBOL(__kernel_write);
 
+ssize_t kernel_write(struct file *file, const void *buf, size_t count,
+			    loff_t *pos)
+{
+	mm_segment_t old_fs;
+	ssize_t res;
+
+	old_fs = get_fs();
+	set_fs(get_ds());
+	/* The cast to a user pointer is valid due to the set_fs() */
+	res = vfs_write(file, (__force const char __user *)buf, count, pos);
+	set_fs(old_fs);
+
+	return res;
+}
+EXPORT_SYMBOL(kernel_write);
+
 ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_t *pos)
 {
 	ssize_t ret;
@@ -527,8 +553,6 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_
 	return ret;
 }
 
-EXPORT_SYMBOL(vfs_write);
-
 static inline loff_t file_pos_read(struct file *file)
 {
 	return file->f_pos;
@@ -959,9 +983,8 @@ ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,
 
 	return ret;
 }
-EXPORT_SYMBOL(vfs_readv);
 
-ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,
+static ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,
 		   unsigned long vlen, loff_t *pos, rwf_t flags)
 {
 	struct iovec iovstack[UIO_FASTIOV];
@@ -978,7 +1001,6 @@ ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,
 	}
 	return ret;
 }
-EXPORT_SYMBOL(vfs_writev);
 
 static ssize_t do_readv(unsigned long fd, const struct iovec __user *vec,
 			unsigned long vlen, rwf_t flags)
diff --git a/fs/readdir.c b/fs/readdir.c
index 89659549c09d..1b83b0ad183b 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/readdir.c
  *
@@ -36,13 +37,12 @@ int iterate_dir(struct file *file, struct dir_context *ctx)
 	if (res)
 		goto out;
 
-	if (shared) {
-		inode_lock_shared(inode);
-	} else {
+	if (shared)
+		res = down_read_killable(&inode->i_rwsem);
+	else
 		res = down_write_killable(&inode->i_rwsem);
-		if (res)
-			goto out;
-	}
+	if (res)
+		goto out;
 
 	res = -ENOENT;
 	if (!IS_DEADDIR(inode)) {
diff --git a/fs/reiserfs/Makefile b/fs/reiserfs/Makefile
index 3c3b00165114..a39a562c1c10 100644
--- a/fs/reiserfs/Makefile
+++ b/fs/reiserfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux reiser-filesystem routines.
 #
diff --git a/fs/reiserfs/acl.h b/fs/reiserfs/acl.h
index 4a211f5b34b8..0c1c847f992f 100644
--- a/fs/reiserfs/acl.h
+++ b/fs/reiserfs/acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/init.h>
 #include <linux/posix_acl.h>
 
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 873fc04e9403..11a48affa882 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1776,7 +1776,7 @@ int reiserfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 	struct reiserfs_transaction_handle th;
 	int jbegin_count = 1;
 
-	if (inode->i_sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(inode->i_sb))
 		return -EROFS;
 	/*
 	 * memory pressure can sometimes initiate write_inode calls with
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index 0c882a0e2a6e..69ff280bdfe8 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Write ahead logging implementation copyright Chris Mason 2000
  *
@@ -1918,7 +1919,7 @@ static int do_journal_release(struct reiserfs_transaction_handle *th,
 	 * we only want to flush out transactions if we were
 	 * called with error == 0
 	 */
-	if (!error && !(sb->s_flags & MS_RDONLY)) {
+	if (!error && !sb_rdonly(sb)) {
 		/* end the current trans */
 		BUG_ON(!th->t_trans_id);
 		do_journal_end(th, FLUSH_ALL);
diff --git a/fs/reiserfs/lock.c b/fs/reiserfs/lock.c
index 045b83ef9fd9..46bd7bd63a71 100644
--- a/fs/reiserfs/lock.c
+++ b/fs/reiserfs/lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "reiserfs.h"
 #include <linux/mutex.h>
 
diff --git a/fs/reiserfs/prints.c b/fs/reiserfs/prints.c
index 4f3f928076f3..64f49cafbc5b 100644
--- a/fs/reiserfs/prints.c
+++ b/fs/reiserfs/prints.c
@@ -386,7 +386,7 @@ void __reiserfs_error(struct super_block *sb, const char *id,
 		printk(KERN_CRIT "REISERFS error (device %s): %s: %s\n",
 		       sb->s_id, function, error_buf);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return;
 
 	reiserfs_info(sb, "Remounting filesystem read-only\n");
diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index 1d34377fef97..48835a659948 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 1996, 1997, 1998 Hans Reiser, see reiserfs/README for
  * licensing and copyright details
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 306e4e9d172d..5464ec517702 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -121,7 +121,7 @@ void reiserfs_schedule_old_flush(struct super_block *s)
 	 * Avoid scheduling flush when sb is being shut down. It can race
 	 * with journal shutdown and free still queued delayed work.
 	 */
-	if (s->s_flags & MS_RDONLY || !(s->s_flags & MS_ACTIVE))
+	if (sb_rdonly(s) || !(s->s_flags & MS_ACTIVE))
 		return;
 
 	spin_lock(&sbi->old_work_lock);
@@ -151,7 +151,7 @@ static int reiserfs_freeze(struct super_block *s)
 	reiserfs_cancel_old_flush(s);
 
 	reiserfs_write_lock(s);
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 		int err = journal_begin(&th, s, 1);
 		if (err) {
 			reiserfs_block_writes(&th);
@@ -599,7 +599,7 @@ static void reiserfs_put_super(struct super_block *s)
 	 * change file system state to current state if it was mounted
 	 * with read-write permissions
 	 */
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 		if (!journal_begin(&th, s, 10)) {
 			reiserfs_prepare_for_journal(s, SB_BUFFER_WITH_SB(s),
 						     1);
@@ -700,7 +700,7 @@ static void reiserfs_dirty_inode(struct inode *inode, int flags)
 
 	int err = 0;
 
-	if (inode->i_sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(inode->i_sb)) {
 		reiserfs_warning(inode->i_sb, "clm-6006",
 				 "writing inode %lu on readonly FS",
 				 inode->i_ino);
@@ -1525,7 +1525,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
 		reiserfs_write_unlock(s);
 		reiserfs_xattr_init(s, *mount_flags);
 		/* remount read-only */
-		if (s->s_flags & MS_RDONLY)
+		if (sb_rdonly(s))
 			/* it is read-only already */
 			goto out_ok_unlocked;
 
@@ -1551,7 +1551,7 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
 		journal_mark_dirty(&th, SB_BUFFER_WITH_SB(s));
 	} else {
 		/* remount read-write */
-		if (!(s->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(s)) {
 			reiserfs_write_unlock(s);
 			reiserfs_xattr_init(s, *mount_flags);
 			goto out_ok_unlocked;	/* We are read-write already */
@@ -1855,7 +1855,7 @@ static int what_hash(struct super_block *s)
 	 * the super
 	 */
 	if (code != UNSET_HASH &&
-	    !(s->s_flags & MS_RDONLY) &&
+	    !sb_rdonly(s) &&
 	    code != sb_hash_function_code(SB_DISK_SUPER_BLOCK(s))) {
 		set_sb_hash_function_code(SB_DISK_SUPER_BLOCK(s), code);
 	}
@@ -2052,7 +2052,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	if (replay_only(s))
 		goto error_unlocked;
 
-	if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
+	if (bdev_read_only(s->s_bdev) && !sb_rdonly(s)) {
 		SWARN(silent, s, "clm-7000",
 		      "Detected readonly device, marking FS readonly");
 		s->s_flags |= MS_RDONLY;
@@ -2101,7 +2101,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	else
 		set_bit(REISERFS_3_6, &sbi->s_properties);
 
-	if (!(s->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(s)) {
 
 		errval = journal_begin(&th, s, 1);
 		if (errval) {
diff --git a/fs/reiserfs/tail_conversion.c b/fs/reiserfs/tail_conversion.c
index 2d5489b0a269..b0ae088dffc7 100644
--- a/fs/reiserfs/tail_conversion.c
+++ b/fs/reiserfs/tail_conversion.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 1999 Hans Reiser, see reiserfs/README for licensing and copyright
  * details
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index e87aa21c30de..46492fb37a4c 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/reiserfs/xattr.c
  *
diff --git a/fs/reiserfs/xattr.h b/fs/reiserfs/xattr.h
index 613ff5aef94e..c764352447ba 100644
--- a/fs/reiserfs/xattr.h
+++ b/fs/reiserfs/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/reiserfs_xattr.h>
 #include <linux/init.h>
 #include <linux/list.h>
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 54415f0e3d18..aa9380bac196 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/capability.h>
 #include <linux/fs.h>
 #include <linux/posix_acl.h>
diff --git a/fs/reiserfs/xattr_security.c b/fs/reiserfs/xattr_security.c
index e4cbb7719906..20be9a0e5870 100644
--- a/fs/reiserfs/xattr_security.c
+++ b/fs/reiserfs/xattr_security.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "reiserfs.h"
 #include <linux/errno.h>
 #include <linux/fs.h>
diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c
index f15a5f9e84ce..5ed48da3d02b 100644
--- a/fs/reiserfs/xattr_trusted.c
+++ b/fs/reiserfs/xattr_trusted.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "reiserfs.h"
 #include <linux/capability.h>
 #include <linux/errno.h>
diff --git a/fs/reiserfs/xattr_user.c b/fs/reiserfs/xattr_user.c
index dc59df43b2db..a573ca45bacc 100644
--- a/fs/reiserfs/xattr_user.c
+++ b/fs/reiserfs/xattr_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "reiserfs.h"
 #include <linux/errno.h>
 #include <linux/fs.h>
diff --git a/fs/romfs/Makefile b/fs/romfs/Makefile
index 420beb7d495c..844928f15711 100644
--- a/fs/romfs/Makefile
+++ b/fs/romfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux RomFS filesystem routines.
 #
diff --git a/fs/select.c b/fs/select.c
index c6362e38ae92..063067e606ca 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains the procedures for the handling of select and poll
  *
diff --git a/fs/seq_file.c b/fs/seq_file.c
index dc7c2be963ed..4be761c1a03d 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/seq_file.c
  *
diff --git a/fs/signalfd.c b/fs/signalfd.c
index d2c434112f42..1c667af86da5 100644
--- a/fs/signalfd.c
+++ b/fs/signalfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/signalfd.c
  *
diff --git a/fs/splice.c b/fs/splice.c
index ae41201d0325..39e2dc01ac12 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -253,7 +253,7 @@ EXPORT_SYMBOL(add_to_pipe);
  */
 int splice_grow_spd(const struct pipe_inode_info *pipe, struct splice_pipe_desc *spd)
 {
-	unsigned int buffers = ACCESS_ONCE(pipe->buffers);
+	unsigned int buffers = READ_ONCE(pipe->buffers);
 
 	spd->nr_pages_max = buffers;
 	if (buffers <= PIPE_DEF_BUFFERS)
@@ -364,22 +364,6 @@ static ssize_t kernel_readv(struct file *file, const struct kvec *vec,
 	return res;
 }
 
-ssize_t kernel_write(struct file *file, const char *buf, size_t count,
-			    loff_t pos)
-{
-	mm_segment_t old_fs;
-	ssize_t res;
-
-	old_fs = get_fs();
-	set_fs(get_ds());
-	/* The cast to a user pointer is valid due to the set_fs() */
-	res = vfs_write(file, (__force const char __user *)buf, count, &pos);
-	set_fs(old_fs);
-
-	return res;
-}
-EXPORT_SYMBOL(kernel_write);
-
 static ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
 				 struct pipe_inode_info *pipe, size_t len,
 				 unsigned int flags)
diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index ffb093e72b6c..1adb3346b9d6 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -165,6 +165,20 @@ config SQUASHFS_XZ
 
 	  If unsure, say N.
 
+config SQUASHFS_ZSTD
+	bool "Include support for ZSTD compressed file systems"
+	depends on SQUASHFS
+	select ZSTD_DECOMPRESS
+	help
+	  Saying Y here includes support for reading Squashfs file systems
+	  compressed with ZSTD compression.  ZSTD gives better compression than
+	  the default ZLIB compression, while using less CPU.
+
+	  ZSTD is not the standard compression used in Squashfs and so most
+	  file systems will be readable without selecting this option.
+
+	  If unsure, say N.
+
 config SQUASHFS_4K_DEVBLK_SIZE
 	bool "Use 4K device block size?"
 	depends on SQUASHFS
diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index 246a6f329d89..7bd9b8b856d0 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux squashfs routines.
 #
@@ -15,3 +16,4 @@ squashfs-$(CONFIG_SQUASHFS_LZ4) += lz4_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_LZO) += lzo_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_XZ) += xz_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_ZLIB) += zlib_wrapper.o
+squashfs-$(CONFIG_SQUASHFS_ZSTD) += zstd_wrapper.o
diff --git a/fs/squashfs/decompressor.c b/fs/squashfs/decompressor.c
index d2bc13636f79..836639810ea0 100644
--- a/fs/squashfs/decompressor.c
+++ b/fs/squashfs/decompressor.c
@@ -65,6 +65,12 @@ static const struct squashfs_decompressor squashfs_zlib_comp_ops = {
 };
 #endif
 
+#ifndef CONFIG_SQUASHFS_ZSTD
+static const struct squashfs_decompressor squashfs_zstd_comp_ops = {
+	NULL, NULL, NULL, NULL, ZSTD_COMPRESSION, "zstd", 0
+};
+#endif
+
 static const struct squashfs_decompressor squashfs_unknown_comp_ops = {
 	NULL, NULL, NULL, NULL, 0, "unknown", 0
 };
@@ -75,6 +81,7 @@ static const struct squashfs_decompressor *decompressor[] = {
 	&squashfs_lzo_comp_ops,
 	&squashfs_xz_comp_ops,
 	&squashfs_lzma_unsupported_comp_ops,
+	&squashfs_zstd_comp_ops,
 	&squashfs_unknown_comp_ops
 };
 
diff --git a/fs/squashfs/decompressor.h b/fs/squashfs/decompressor.h
index a25713c031a5..0f5a8e4e58da 100644
--- a/fs/squashfs/decompressor.h
+++ b/fs/squashfs/decompressor.h
@@ -58,4 +58,8 @@ extern const struct squashfs_decompressor squashfs_lzo_comp_ops;
 extern const struct squashfs_decompressor squashfs_zlib_comp_ops;
 #endif
 
+#ifdef CONFIG_SQUASHFS_ZSTD
+extern const struct squashfs_decompressor squashfs_zstd_comp_ops;
+#endif
+
 #endif
diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h
index 506f4ba5b983..24d12fd14177 100644
--- a/fs/squashfs/squashfs_fs.h
+++ b/fs/squashfs/squashfs_fs.h
@@ -241,6 +241,7 @@ struct meta_index {
 #define LZO_COMPRESSION		3
 #define XZ_COMPRESSION		4
 #define LZ4_COMPRESSION		5
+#define ZSTD_COMPRESSION	6
 
 struct squashfs_super_block {
 	__le32			s_magic;
diff --git a/fs/squashfs/zstd_wrapper.c b/fs/squashfs/zstd_wrapper.c
new file mode 100644
index 000000000000..eeaabf881159
--- /dev/null
+++ b/fs/squashfs/zstd_wrapper.c
@@ -0,0 +1,151 @@
+/*
+ * Squashfs - a compressed read only filesystem for Linux
+ *
+ * Copyright (c) 2016-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2,
+ * or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * zstd_wrapper.c
+ */
+
+#include <linux/mutex.h>
+#include <linux/buffer_head.h>
+#include <linux/slab.h>
+#include <linux/zstd.h>
+#include <linux/vmalloc.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "squashfs.h"
+#include "decompressor.h"
+#include "page_actor.h"
+
+struct workspace {
+	void *mem;
+	size_t mem_size;
+	size_t window_size;
+};
+
+static void *zstd_init(struct squashfs_sb_info *msblk, void *buff)
+{
+	struct workspace *wksp = kmalloc(sizeof(*wksp), GFP_KERNEL);
+
+	if (wksp == NULL)
+		goto failed;
+	wksp->window_size = max_t(size_t,
+			msblk->block_size, SQUASHFS_METADATA_SIZE);
+	wksp->mem_size = ZSTD_DStreamWorkspaceBound(wksp->window_size);
+	wksp->mem = vmalloc(wksp->mem_size);
+	if (wksp->mem == NULL)
+		goto failed;
+
+	return wksp;
+
+failed:
+	ERROR("Failed to allocate zstd workspace\n");
+	kfree(wksp);
+	return ERR_PTR(-ENOMEM);
+}
+
+
+static void zstd_free(void *strm)
+{
+	struct workspace *wksp = strm;
+
+	if (wksp)
+		vfree(wksp->mem);
+	kfree(wksp);
+}
+
+
+static int zstd_uncompress(struct squashfs_sb_info *msblk, void *strm,
+	struct buffer_head **bh, int b, int offset, int length,
+	struct squashfs_page_actor *output)
+{
+	struct workspace *wksp = strm;
+	ZSTD_DStream *stream;
+	size_t total_out = 0;
+	size_t zstd_err;
+	int k = 0;
+	ZSTD_inBuffer in_buf = { NULL, 0, 0 };
+	ZSTD_outBuffer out_buf = { NULL, 0, 0 };
+
+	stream = ZSTD_initDStream(wksp->window_size, wksp->mem, wksp->mem_size);
+
+	if (!stream) {
+		ERROR("Failed to initialize zstd decompressor\n");
+		goto out;
+	}
+
+	out_buf.size = PAGE_SIZE;
+	out_buf.dst = squashfs_first_page(output);
+
+	do {
+		if (in_buf.pos == in_buf.size && k < b) {
+			int avail = min(length, msblk->devblksize - offset);
+
+			length -= avail;
+			in_buf.src = bh[k]->b_data + offset;
+			in_buf.size = avail;
+			in_buf.pos = 0;
+			offset = 0;
+		}
+
+		if (out_buf.pos == out_buf.size) {
+			out_buf.dst = squashfs_next_page(output);
+			if (out_buf.dst == NULL) {
+				/* Shouldn't run out of pages
+				 * before stream is done.
+				 */
+				squashfs_finish_page(output);
+				goto out;
+			}
+			out_buf.pos = 0;
+			out_buf.size = PAGE_SIZE;
+		}
+
+		total_out -= out_buf.pos;
+		zstd_err = ZSTD_decompressStream(stream, &out_buf, &in_buf);
+		total_out += out_buf.pos; /* add the additional data produced */
+
+		if (in_buf.pos == in_buf.size && k < b)
+			put_bh(bh[k++]);
+	} while (zstd_err != 0 && !ZSTD_isError(zstd_err));
+
+	squashfs_finish_page(output);
+
+	if (ZSTD_isError(zstd_err)) {
+		ERROR("zstd decompression error: %d\n",
+				(int)ZSTD_getErrorCode(zstd_err));
+		goto out;
+	}
+
+	if (k < b)
+		goto out;
+
+	return (int)total_out;
+
+out:
+	for (; k < b; k++)
+		put_bh(bh[k]);
+
+	return -EIO;
+}
+
+const struct squashfs_decompressor squashfs_zstd_comp_ops = {
+	.init = zstd_init,
+	.free = zstd_free,
+	.decompress = zstd_uncompress,
+	.id = ZSTD_COMPRESSION,
+	.name = "zstd",
+	.supported = 1
+};
diff --git a/fs/stat.c b/fs/stat.c
index 8a6aa8caf891..873785dae022 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/stat.c
  *
diff --git a/fs/statfs.c b/fs/statfs.c
index fab9b6a3c116..c25dd9a26cc1 100644
--- a/fs/statfs.c
+++ b/fs/statfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/syscalls.h>
 #include <linux/export.h>
 #include <linux/fs.h>
diff --git a/fs/super.c b/fs/super.c
index 221cfa1f4e92..994db21f59bf 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/super.c
  *
@@ -360,7 +361,7 @@ static int grab_super(struct super_block *s) __releases(sb_lock)
 	s->s_count++;
 	spin_unlock(&sb_lock);
 	down_write(&s->s_umount);
-	if ((s->s_flags & MS_BORN) && atomic_inc_not_zero(&s->s_active)) {
+	if ((s->s_flags & SB_BORN) && atomic_inc_not_zero(&s->s_active)) {
 		put_super(s);
 		return 1;
 	}
@@ -390,7 +391,7 @@ bool trylock_super(struct super_block *sb)
 {
 	if (down_read_trylock(&sb->s_umount)) {
 		if (!hlist_unhashed(&sb->s_instances) &&
-		    sb->s_root && (sb->s_flags & MS_BORN))
+		    sb->s_root && (sb->s_flags & SB_BORN))
 			return true;
 		up_read(&sb->s_umount);
 	}
@@ -419,7 +420,7 @@ void generic_shutdown_super(struct super_block *sb)
 	if (sb->s_root) {
 		shrink_dcache_for_umount(sb);
 		sync_filesystem(sb);
-		sb->s_flags &= ~MS_ACTIVE;
+		sb->s_flags &= ~SB_ACTIVE;
 
 		fsnotify_unmount_inodes(sb);
 		cgroup_writeback_umount();
@@ -472,7 +473,7 @@ struct super_block *sget_userns(struct file_system_type *type,
 	struct super_block *old;
 	int err;
 
-	if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) &&
+	if (!(flags & (SB_KERNMOUNT|SB_SUBMOUNT)) &&
 	    !(type->fs_flags & FS_USERNS_MOUNT) &&
 	    !capable(CAP_SYS_ADMIN))
 		return ERR_PTR(-EPERM);
@@ -502,7 +503,7 @@ retry:
 	}
 	if (!s) {
 		spin_unlock(&sb_lock);
-		s = alloc_super(type, (flags & ~MS_SUBMOUNT), user_ns);
+		s = alloc_super(type, (flags & ~SB_SUBMOUNT), user_ns);
 		if (!s)
 			return ERR_PTR(-ENOMEM);
 		goto retry;
@@ -547,11 +548,11 @@ struct super_block *sget(struct file_system_type *type,
 	 * mount through to here so always use &init_user_ns
 	 * until that changes.
 	 */
-	if (flags & MS_SUBMOUNT)
+	if (flags & SB_SUBMOUNT)
 		user_ns = &init_user_ns;
 
 	/* Ensure the requestor has permissions over the target filesystem */
-	if (!(flags & (MS_KERNMOUNT|MS_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN))
+	if (!(flags & (SB_KERNMOUNT|SB_SUBMOUNT)) && !ns_capable(user_ns, CAP_SYS_ADMIN))
 		return ERR_PTR(-EPERM);
 
 	return sget_userns(type, test, set, flags, user_ns, data);
@@ -594,7 +595,7 @@ void iterate_supers(void (*f)(struct super_block *, void *), void *arg)
 		spin_unlock(&sb_lock);
 
 		down_read(&sb->s_umount);
-		if (sb->s_root && (sb->s_flags & MS_BORN))
+		if (sb->s_root && (sb->s_flags & SB_BORN))
 			f(sb, arg);
 		up_read(&sb->s_umount);
 
@@ -628,7 +629,7 @@ void iterate_supers_type(struct file_system_type *type,
 		spin_unlock(&sb_lock);
 
 		down_read(&sb->s_umount);
-		if (sb->s_root && (sb->s_flags & MS_BORN))
+		if (sb->s_root && (sb->s_flags & SB_BORN))
 			f(sb, arg);
 		up_read(&sb->s_umount);
 
@@ -664,7 +665,7 @@ rescan:
 			else
 				down_write(&sb->s_umount);
 			/* still alive? */
-			if (sb->s_root && (sb->s_flags & MS_BORN))
+			if (sb->s_root && (sb->s_flags & SB_BORN))
 				return sb;
 			if (!excl)
 				up_read(&sb->s_umount);
@@ -785,7 +786,7 @@ rescan:
 			spin_unlock(&sb_lock);
 			down_read(&sb->s_umount);
 			/* still alive? */
-			if (sb->s_root && (sb->s_flags & MS_BORN))
+			if (sb->s_root && (sb->s_flags & SB_BORN))
 				return sb;
 			up_read(&sb->s_umount);
 			/* nope, got unmounted */
@@ -801,13 +802,13 @@ rescan:
 /**
  *	do_remount_sb - asks filesystem to change mount options.
  *	@sb:	superblock in question
- *	@flags:	numeric part of options
+ *	@sb_flags: revised superblock flags
  *	@data:	the rest of options
  *      @force: whether or not to force the change
  *
  *	Alters the mount options of a mounted file system.
  */
-int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
+int do_remount_sb(struct super_block *sb, int sb_flags, void *data, int force)
 {
 	int retval;
 	int remount_ro;
@@ -816,11 +817,11 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 		return -EBUSY;
 
 #ifdef CONFIG_BLOCK
-	if (!(flags & MS_RDONLY) && bdev_read_only(sb->s_bdev))
+	if (!(sb_flags & SB_RDONLY) && bdev_read_only(sb->s_bdev))
 		return -EACCES;
 #endif
 
-	remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
+	remount_ro = (sb_flags & SB_RDONLY) && !sb_rdonly(sb);
 
 	if (remount_ro) {
 		if (!hlist_empty(&sb->s_pins)) {
@@ -831,7 +832,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 				return 0;
 			if (sb->s_writers.frozen != SB_UNFROZEN)
 				return -EBUSY;
-			remount_ro = (flags & MS_RDONLY) && !(sb->s_flags & MS_RDONLY);
+			remount_ro = (sb_flags & SB_RDONLY) && !sb_rdonly(sb);
 		}
 	}
 	shrink_dcache_sb(sb);
@@ -850,7 +851,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 	}
 
 	if (sb->s_op->remount_fs) {
-		retval = sb->s_op->remount_fs(sb, &flags, data);
+		retval = sb->s_op->remount_fs(sb, &sb_flags, data);
 		if (retval) {
 			if (!force)
 				goto cancel_readonly;
@@ -859,7 +860,7 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 			     sb->s_type->name, retval);
 		}
 	}
-	sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (flags & MS_RMT_MASK);
+	sb->s_flags = (sb->s_flags & ~MS_RMT_MASK) | (sb_flags & MS_RMT_MASK);
 	/* Needs to be ordered wrt mnt_is_readonly() */
 	smp_wmb();
 	sb->s_readonly_remount = 0;
@@ -892,12 +893,12 @@ static void do_emergency_remount(struct work_struct *work)
 		sb->s_count++;
 		spin_unlock(&sb_lock);
 		down_write(&sb->s_umount);
-		if (sb->s_root && sb->s_bdev && (sb->s_flags & MS_BORN) &&
-		    !(sb->s_flags & MS_RDONLY)) {
+		if (sb->s_root && sb->s_bdev && (sb->s_flags & SB_BORN) &&
+		    !sb_rdonly(sb)) {
 			/*
 			 * What lock protects sb->s_flags??
 			 */
-			do_remount_sb(sb, MS_RDONLY, NULL, 1);
+			do_remount_sb(sb, SB_RDONLY, NULL, 1);
 		}
 		up_write(&sb->s_umount);
 		spin_lock(&sb_lock);
@@ -1023,7 +1024,7 @@ struct dentry *mount_ns(struct file_system_type *fs_type,
 	/* Don't allow mounting unless the caller has CAP_SYS_ADMIN
 	 * over the namespace.
 	 */
-	if (!(flags & MS_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN))
+	if (!(flags & SB_KERNMOUNT) && !ns_capable(user_ns, CAP_SYS_ADMIN))
 		return ERR_PTR(-EPERM);
 
 	sb = sget_userns(fs_type, ns_test_super, ns_set_super, flags,
@@ -1033,13 +1034,13 @@ struct dentry *mount_ns(struct file_system_type *fs_type,
 
 	if (!sb->s_root) {
 		int err;
-		err = fill_super(sb, data, flags & MS_SILENT ? 1 : 0);
+		err = fill_super(sb, data, flags & SB_SILENT ? 1 : 0);
 		if (err) {
 			deactivate_locked_super(sb);
 			return ERR_PTR(err);
 		}
 
-		sb->s_flags |= MS_ACTIVE;
+		sb->s_flags |= SB_ACTIVE;
 	}
 
 	return dget(sb->s_root);
@@ -1071,7 +1072,7 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
 	fmode_t mode = FMODE_READ | FMODE_EXCL;
 	int error = 0;
 
-	if (!(flags & MS_RDONLY))
+	if (!(flags & SB_RDONLY))
 		mode |= FMODE_WRITE;
 
 	bdev = blkdev_get_by_path(dev_name, mode, fs_type);
@@ -1089,14 +1090,14 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
 		error = -EBUSY;
 		goto error_bdev;
 	}
-	s = sget(fs_type, test_bdev_super, set_bdev_super, flags | MS_NOSEC,
+	s = sget(fs_type, test_bdev_super, set_bdev_super, flags | SB_NOSEC,
 		 bdev);
 	mutex_unlock(&bdev->bd_fsfreeze_mutex);
 	if (IS_ERR(s))
 		goto error_s;
 
 	if (s->s_root) {
-		if ((flags ^ s->s_flags) & MS_RDONLY) {
+		if ((flags ^ s->s_flags) & SB_RDONLY) {
 			deactivate_locked_super(s);
 			error = -EBUSY;
 			goto error_bdev;
@@ -1116,13 +1117,13 @@ struct dentry *mount_bdev(struct file_system_type *fs_type,
 		s->s_mode = mode;
 		snprintf(s->s_id, sizeof(s->s_id), "%pg", bdev);
 		sb_set_blocksize(s, block_size(bdev));
-		error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
+		error = fill_super(s, data, flags & SB_SILENT ? 1 : 0);
 		if (error) {
 			deactivate_locked_super(s);
 			goto error;
 		}
 
-		s->s_flags |= MS_ACTIVE;
+		s->s_flags |= SB_ACTIVE;
 		bdev->bd_super = s;
 	}
 
@@ -1162,12 +1163,12 @@ struct dentry *mount_nodev(struct file_system_type *fs_type,
 	if (IS_ERR(s))
 		return ERR_CAST(s);
 
-	error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
+	error = fill_super(s, data, flags & SB_SILENT ? 1 : 0);
 	if (error) {
 		deactivate_locked_super(s);
 		return ERR_PTR(error);
 	}
-	s->s_flags |= MS_ACTIVE;
+	s->s_flags |= SB_ACTIVE;
 	return dget(s->s_root);
 }
 EXPORT_SYMBOL(mount_nodev);
@@ -1188,12 +1189,12 @@ struct dentry *mount_single(struct file_system_type *fs_type,
 	if (IS_ERR(s))
 		return ERR_CAST(s);
 	if (!s->s_root) {
-		error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
+		error = fill_super(s, data, flags & SB_SILENT ? 1 : 0);
 		if (error) {
 			deactivate_locked_super(s);
 			return ERR_PTR(error);
 		}
-		s->s_flags |= MS_ACTIVE;
+		s->s_flags |= SB_ACTIVE;
 	} else {
 		do_remount_sb(s, flags, data, 0);
 	}
@@ -1227,7 +1228,7 @@ mount_fs(struct file_system_type *type, int flags, const char *name, void *data)
 	sb = root->d_sb;
 	BUG_ON(!sb);
 	WARN_ON(!sb->s_bdi);
-	sb->s_flags |= MS_BORN;
+	sb->s_flags |= SB_BORN;
 
 	error = security_sb_kern_mount(sb, flags, secdata);
 	if (error)
@@ -1434,12 +1435,12 @@ int freeze_super(struct super_block *sb)
 		return -EBUSY;
 	}
 
-	if (!(sb->s_flags & MS_BORN)) {
+	if (!(sb->s_flags & SB_BORN)) {
 		up_write(&sb->s_umount);
 		return 0;	/* sic - it's "nothing to do" */
 	}
 
-	if (sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(sb)) {
 		/* Nothing to do really... */
 		sb->s_writers.frozen = SB_FREEZE_COMPLETE;
 		up_write(&sb->s_umount);
@@ -1502,7 +1503,7 @@ int thaw_super(struct super_block *sb)
 		return -EINVAL;
 	}
 
-	if (sb->s_flags & MS_RDONLY) {
+	if (sb_rdonly(sb)) {
 		sb->s_writers.frozen = SB_UNFROZEN;
 		goto out;
 	}
diff --git a/fs/sync.c b/fs/sync.c
index 2e3fd7d94d2d..6e0a2cbaf6de 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * High-level sync()-related operations
  */
@@ -57,7 +58,7 @@ int sync_filesystem(struct super_block *sb)
 	/*
 	 * No point in syncing out anything if the filesystem is read-only.
 	 */
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return 0;
 
 	ret = __sync_filesystem(sb, 0);
@@ -69,13 +70,13 @@ EXPORT_SYMBOL(sync_filesystem);
 
 static void sync_inodes_one_sb(struct super_block *sb, void *arg)
 {
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		sync_inodes_sb(sb);
 }
 
 static void sync_fs_one_sb(struct super_block *sb, void *arg)
 {
-	if (!(sb->s_flags & MS_RDONLY) && sb->s_op->sync_fs)
+	if (!sb_rdonly(sb) && sb->s_op->sync_fs)
 		sb->s_op->sync_fs(sb, *(int *)arg);
 }
 
@@ -108,7 +109,7 @@ SYSCALL_DEFINE0(sync)
 {
 	int nowait = 0, wait = 1;
 
-	wakeup_flusher_threads(0, WB_REASON_SYNC);
+	wakeup_flusher_threads(WB_REASON_SYNC);
 	iterate_supers(sync_inodes_one_sb, NULL);
 	iterate_supers(sync_fs_one_sb, &nowait);
 	iterate_supers(sync_fs_one_sb, &wait);
diff --git a/fs/sysv/balloc.c b/fs/sysv/balloc.c
index 921c053fc052..0e69dbdf7277 100644
--- a/fs/sysv/balloc.c
+++ b/fs/sysv/balloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/balloc.c
  *
@@ -231,7 +232,7 @@ trust_sb:
 Ecount:
 	printk("sysv_count_free_blocks: free block count was %d, "
 		"correcting to %d\n", sb_count, count);
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		*sbi->s_free_blocks = cpu_to_fs32(sbi, count);
 		dirty_sb(sb);
 	}
diff --git a/fs/sysv/dir.c b/fs/sysv/dir.c
index f5191cb2c947..88e38cd8f5c9 100644
--- a/fs/sysv/dir.c
+++ b/fs/sysv/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/dir.c
  *
diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index 7ba997e31aeb..45fc79a18594 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/file.c
  *
diff --git a/fs/sysv/ialloc.c b/fs/sysv/ialloc.c
index 53f1b78996dd..6c9801986af6 100644
--- a/fs/sysv/ialloc.c
+++ b/fs/sysv/ialloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/ialloc.c
  *
@@ -220,7 +221,7 @@ Einval:
 	printk("sysv_count_free_inodes: "
 		"free inode count was %d, correcting to %d\n",
 		sb_count, count);
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		*sbi->s_sb_total_free_inodes = cpu_to_fs16(SYSV_SB(sb), count);
 		dirty_sb(sb);
 	}
diff --git a/fs/sysv/inode.c b/fs/sysv/inode.c
index 858fb72f9e0f..3c47b7d5d4cf 100644
--- a/fs/sysv/inode.c
+++ b/fs/sysv/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/inode.c
  *
@@ -70,7 +71,7 @@ static void sysv_put_super(struct super_block *sb)
 {
 	struct sysv_sb_info *sbi = SYSV_SB(sb);
 
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		/* XXX ext2 also updates the state here */
 		mark_buffer_dirty(sbi->s_bh1);
 		if (sbi->s_bh1 != sbi->s_bh2)
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 83809f5b5eca..bcb67b0cabe7 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/itree.c
  *
diff --git a/fs/sysv/namei.c b/fs/sysv/namei.c
index d8817f139763..250b0755b908 100644
--- a/fs/sysv/namei.c
+++ b/fs/sysv/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/sysv/namei.c
  *
diff --git a/fs/sysv/super.c b/fs/sysv/super.c
index eda10959714f..0d56e486b392 100644
--- a/fs/sysv/super.c
+++ b/fs/sysv/super.c
@@ -216,7 +216,7 @@ static int detect_sysv(struct sysv_sb_info *sbi, struct buffer_head *bh)
  	if (fs16_to_cpu(sbi, sbd->s_nfree) == 0xffff) {
  		sbi->s_type = FSTYPE_AFS;
 		sbi->s_forced_ro = 1;
- 		if (!(sb->s_flags & MS_RDONLY)) {
+ 		if (!sb_rdonly(sb)) {
  			printk("SysV FS: SCO EAFS on %s detected, " 
  				"forcing read-only mode.\n", 
  				sb->s_id);
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 1e7e27c729af..e913698779c0 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SYSV_H
 #define _SYSV_H
 
diff --git a/fs/timerfd.c b/fs/timerfd.c
index ece0c02d7e63..040612ec9598 100644
--- a/fs/timerfd.c
+++ b/fs/timerfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  fs/timerfd.c
  *
diff --git a/fs/ubifs/Makefile b/fs/ubifs/Makefile
index 6f3251c2bf08..9758f709c736 100644
--- a/fs/ubifs/Makefile
+++ b/fs/ubifs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_UBIFS_FS) += ubifs.o
 
 ubifs-y += shrinker.o journal.o file.o dir.o super.o sb.o io.o
diff --git a/fs/ubifs/crypto.c b/fs/ubifs/crypto.c
index 114ba455bac3..616a688f5d8f 100644
--- a/fs/ubifs/crypto.c
+++ b/fs/ubifs/crypto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "ubifs.h"
 
 static int ubifs_crypt_get_context(struct inode *inode, void *ctx, size_t len)
@@ -87,7 +88,6 @@ const struct fscrypt_operations ubifs_crypt_operations = {
 	.key_prefix		= "ubifs:",
 	.get_context		= ubifs_crypt_get_context,
 	.set_context		= ubifs_crypt_set_context,
-	.is_encrypted		= __ubifs_crypt_is_encrypted,
 	.empty_dir		= ubifs_crypt_empty_dir,
 	.max_namelen		= ubifs_crypt_max_namelen,
 };
diff --git a/fs/ubifs/ioctl.c b/fs/ubifs/ioctl.c
index fdc311246807..0164bcc827f8 100644
--- a/fs/ubifs/ioctl.c
+++ b/fs/ubifs/ioctl.c
@@ -38,7 +38,8 @@ void ubifs_set_inode_flags(struct inode *inode)
 {
 	unsigned int flags = ubifs_inode(inode)->flags;
 
-	inode->i_flags &= ~(S_SYNC | S_APPEND | S_IMMUTABLE | S_DIRSYNC);
+	inode->i_flags &= ~(S_SYNC | S_APPEND | S_IMMUTABLE | S_DIRSYNC |
+			    S_ENCRYPTED);
 	if (flags & UBIFS_SYNC_FL)
 		inode->i_flags |= S_SYNC;
 	if (flags & UBIFS_APPEND_FL)
@@ -47,6 +48,8 @@ void ubifs_set_inode_flags(struct inode *inode)
 		inode->i_flags |= S_IMMUTABLE;
 	if (flags & UBIFS_DIRSYNC_FL)
 		inode->i_flags |= S_DIRSYNC;
+	if (flags & UBIFS_CRYPT_FL)
+		inode->i_flags |= S_ENCRYPTED;
 }
 
 /*
diff --git a/fs/ubifs/misc.c b/fs/ubifs/misc.c
index 486a2844949f..586fd5b578a7 100644
--- a/fs/ubifs/misc.c
+++ b/fs/ubifs/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include "ubifs.h"
 
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index bffadbb67e47..7503e7cdf870 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1159,7 +1159,7 @@ static int mount_ubifs(struct ubifs_info *c)
 	long long x, y;
 	size_t sz;
 
-	c->ro_mount = !!(c->vfs_sb->s_flags & MS_RDONLY);
+	c->ro_mount = !!sb_rdonly(c->vfs_sb);
 	/* Suppress error messages while probing if MS_SILENT is set */
 	c->probing = !!(c->vfs_sb->s_flags & MS_SILENT);
 
@@ -2007,12 +2007,6 @@ static struct ubifs_info *alloc_ubifs_info(struct ubi_volume_desc *ubi)
 	return c;
 }
 
-#ifndef CONFIG_UBIFS_FS_ENCRYPTION
-const struct fscrypt_operations ubifs_crypt_operations = {
-	.is_encrypted		= __ubifs_crypt_is_encrypted,
-};
-#endif
-
 static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 {
 	struct ubifs_info *c = sb->s_fs_info;
@@ -2055,7 +2049,9 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 		sb->s_maxbytes = c->max_inode_sz = MAX_LFS_FILESIZE;
 	sb->s_op = &ubifs_super_operations;
 	sb->s_xattr = ubifs_xattr_handlers;
+#ifdef CONFIG_UBIFS_FS_ENCRYPTION
 	sb->s_cop = &ubifs_crypt_operations;
+#endif
 
 	mutex_lock(&c->umount_mutex);
 	err = mount_ubifs(c);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index cd43651f1731..63c7468147eb 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -38,12 +38,11 @@
 #include <linux/backing-dev.h>
 #include <linux/security.h>
 #include <linux/xattr.h>
-#ifdef CONFIG_UBIFS_FS_ENCRYPTION
-#include <linux/fscrypt_supp.h>
-#else
-#include <linux/fscrypt_notsupp.h>
-#endif
 #include <linux/random.h>
+
+#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_UBIFS_FS_ENCRYPTION)
+#include <linux/fscrypt.h>
+
 #include "ubifs-media.h"
 
 /* Version of this UBIFS implementation */
@@ -1835,18 +1834,13 @@ int ubifs_decrypt(const struct inode *inode, struct ubifs_data_node *dn,
 
 extern const struct fscrypt_operations ubifs_crypt_operations;
 
-static inline bool __ubifs_crypt_is_encrypted(struct inode *inode)
+static inline bool ubifs_crypt_is_encrypted(const struct inode *inode)
 {
-	struct ubifs_inode *ui = ubifs_inode(inode);
+	const struct ubifs_inode *ui = ubifs_inode(inode);
 
 	return ui->flags & UBIFS_CRYPT_FL;
 }
 
-static inline bool ubifs_crypt_is_encrypted(const struct inode *inode)
-{
-	return __ubifs_crypt_is_encrypted((struct inode *)inode);
-}
-
 /* Normal UBIFS messages */
 __printf(2, 3)
 void ubifs_msg(const struct ubifs_info *c, const char *fmt, ...);
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index c13eae819cbc..5ddc89d564fd 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -170,6 +170,7 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 	err = ubifs_jnl_update(c, host, nm, inode, 0, 1);
 	if (err)
 		goto out_cancel;
+	ubifs_set_inode_flags(host);
 	mutex_unlock(&host_ui->ui_mutex);
 
 	ubifs_release_budget(c, &req);
diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index e0fd65fe73e8..1b961b1d9699 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -58,7 +58,7 @@ static int __load_block_bitmap(struct super_block *sb,
 	int nr_groups = bitmap->s_nr_groups;
 
 	if (block_group >= nr_groups) {
-		udf_debug("block_group (%d) > nr_groups (%d)\n",
+		udf_debug("block_group (%u) > nr_groups (%d)\n",
 			  block_group, nr_groups);
 	}
 
@@ -122,7 +122,7 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
 	partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
 	if (bloc->logicalBlockNum + count < count ||
 	    (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
-		udf_debug("%d < %d || %d + %d > %d\n",
+		udf_debug("%u < %d || %u + %u > %u\n",
 			  bloc->logicalBlockNum, 0,
 			  bloc->logicalBlockNum, count,
 			  partmap->s_partition_len);
@@ -151,9 +151,9 @@ static void udf_bitmap_free_blocks(struct super_block *sb,
 		bh = bitmap->s_block_bitmap[bitmap_nr];
 		for (i = 0; i < count; i++) {
 			if (udf_set_bit(bit + i, bh->b_data)) {
-				udf_debug("bit %ld already set\n", bit + i);
+				udf_debug("bit %lu already set\n", bit + i);
 				udf_debug("byte=%2x\n",
-					  ((char *)bh->b_data)[(bit + i) >> 3]);
+					  ((__u8 *)bh->b_data)[(bit + i) >> 3]);
 			}
 		}
 		udf_add_free_space(sb, sbi->s_partition, count);
@@ -218,16 +218,18 @@ out:
 	return alloc_count;
 }
 
-static int udf_bitmap_new_block(struct super_block *sb,
+static udf_pblk_t udf_bitmap_new_block(struct super_block *sb,
 				struct udf_bitmap *bitmap, uint16_t partition,
 				uint32_t goal, int *err)
 {
 	struct udf_sb_info *sbi = UDF_SB(sb);
-	int newbit, bit = 0, block, block_group, group_start;
+	int newbit, bit = 0;
+	udf_pblk_t block;
+	int block_group, group_start;
 	int end_goal, nr_groups, bitmap_nr, i;
 	struct buffer_head *bh = NULL;
 	char *ptr;
-	int newblock = 0;
+	udf_pblk_t newblock = 0;
 
 	*err = -ENOSPC;
 	mutex_lock(&sbi->s_alloc_mutex);
@@ -362,7 +364,7 @@ static void udf_table_free_blocks(struct super_block *sb,
 	partmap = &sbi->s_partmaps[bloc->partitionReferenceNum];
 	if (bloc->logicalBlockNum + count < count ||
 	    (bloc->logicalBlockNum + count) > partmap->s_partition_len) {
-		udf_debug("%d < %d || %d + %d > %d\n",
+		udf_debug("%u < %d || %u + %u > %u\n",
 			  bloc->logicalBlockNum, 0,
 			  bloc->logicalBlockNum, count,
 			  partmap->s_partition_len);
@@ -515,7 +517,7 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
 
 	while (first_block != eloc.logicalBlockNum &&
 	       (etype = udf_next_aext(table, &epos, &eloc, &elen, 1)) != -1) {
-		udf_debug("eloc=%d, elen=%d, first_block=%d\n",
+		udf_debug("eloc=%u, elen=%u, first_block=%u\n",
 			  eloc.logicalBlockNum, elen, first_block);
 		; /* empty loop body */
 	}
@@ -545,13 +547,14 @@ static int udf_table_prealloc_blocks(struct super_block *sb,
 	return alloc_count;
 }
 
-static int udf_table_new_block(struct super_block *sb,
+static udf_pblk_t udf_table_new_block(struct super_block *sb,
 			       struct inode *table, uint16_t partition,
 			       uint32_t goal, int *err)
 {
 	struct udf_sb_info *sbi = UDF_SB(sb);
 	uint32_t spread = 0xFFFFFFFF, nspread = 0xFFFFFFFF;
-	uint32_t newblock = 0, adsize;
+	udf_pblk_t newblock = 0;
+	uint32_t adsize;
 	uint32_t elen, goal_elen = 0;
 	struct kernel_lb_addr eloc, uninitialized_var(goal_eloc);
 	struct extent_position epos, goal_epos;
@@ -700,12 +703,12 @@ inline int udf_prealloc_blocks(struct super_block *sb,
 	return allocated;
 }
 
-inline int udf_new_block(struct super_block *sb,
+inline udf_pblk_t udf_new_block(struct super_block *sb,
 			 struct inode *inode,
 			 uint16_t partition, uint32_t goal, int *err)
 {
 	struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];
-	int block;
+	udf_pblk_t block;
 
 	if (map->s_partition_flags & UDF_PART_FLAG_UNALLOC_BITMAP)
 		block = udf_bitmap_new_block(sb,
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 2d0e028067eb..c19dba45aa20 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -43,7 +43,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 	struct udf_fileident_bh fibh = { .sbh = NULL, .ebh = NULL};
 	struct fileIdentDesc *fi = NULL;
 	struct fileIdentDesc cfi;
-	int block, iblock;
+	udf_pblk_t block, iblock;
 	loff_t nf_pos;
 	int flen;
 	unsigned char *fname = NULL, *copy_name = NULL;
diff --git a/fs/udf/directory.c b/fs/udf/directory.c
index 7aa48bd7cbaf..0a98a2369738 100644
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -26,7 +26,8 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
 					 sector_t *offset)
 {
 	struct fileIdentDesc *fi;
-	int i, num, block;
+	int i, num;
+	udf_pblk_t block;
 	struct buffer_head *tmp, *bha[16];
 	struct udf_inode_info *iinfo = UDF_I(dir);
 
@@ -51,7 +52,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
 	}
 
 	if (fibh->eoffset == dir->i_sb->s_blocksize) {
-		int lextoffset = epos->offset;
+		uint32_t lextoffset = epos->offset;
 		unsigned char blocksize_bits = dir->i_sb->s_blocksize_bits;
 
 		if (udf_next_aext(dir, epos, eloc, elen, 1) !=
@@ -110,7 +111,7 @@ struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
 		memcpy((uint8_t *)cfi, (uint8_t *)fi,
 		       sizeof(struct fileIdentDesc));
 	} else if (fibh->eoffset > dir->i_sb->s_blocksize) {
-		int lextoffset = epos->offset;
+		uint32_t lextoffset = epos->offset;
 
 		if (udf_next_aext(dir, epos, eloc, elen, 1) !=
 		    (EXT_RECORDED_ALLOCATED >> 30))
@@ -175,7 +176,7 @@ struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
 	if (fi->descTag.tagIdent != cpu_to_le16(TAG_IDENT_FID)) {
 		udf_debug("0x%x != TAG_IDENT_FID\n",
 			  le16_to_cpu(fi->descTag.tagIdent));
-		udf_debug("offset: %u sizeof: %lu bufsize: %u\n",
+		udf_debug("offset: %d sizeof: %lu bufsize: %d\n",
 			  *offset, (unsigned long)sizeof(struct fileIdentDesc),
 			  bufsize);
 		return NULL;
diff --git a/fs/udf/ialloc.c b/fs/udf/ialloc.c
index c1ed18a10ce4..b6e420c1bfeb 100644
--- a/fs/udf/ialloc.c
+++ b/fs/udf/ialloc.c
@@ -50,7 +50,7 @@ struct inode *udf_new_inode(struct inode *dir, umode_t mode)
 	struct super_block *sb = dir->i_sb;
 	struct udf_sb_info *sbi = UDF_SB(sb);
 	struct inode *inode;
-	int block;
+	udf_pblk_t block;
 	uint32_t start = UDF_I(dir)->i_location.logicalBlockNum;
 	struct udf_inode_info *iinfo;
 	struct udf_inode_info *dinfo = UDF_I(dir);
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 8dacf4f57414..c23744d5ae5c 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -52,7 +52,7 @@ static int udf_alloc_i_data(struct inode *inode, size_t size);
 static sector_t inode_getblk(struct inode *, sector_t, int *, int *);
 static int8_t udf_insert_aext(struct inode *, struct extent_position,
 			      struct kernel_lb_addr, uint32_t);
-static void udf_split_extents(struct inode *, int *, int, int,
+static void udf_split_extents(struct inode *, int *, int, udf_pblk_t,
 			      struct kernel_long_ad *, int *);
 static void udf_prealloc_extents(struct inode *, int, int,
 				 struct kernel_long_ad *, int *);
@@ -316,10 +316,10 @@ int udf_expand_file_adinicb(struct inode *inode)
 	return err;
 }
 
-struct buffer_head *udf_expand_dir_adinicb(struct inode *inode, int *block,
-					   int *err)
+struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
+					    udf_pblk_t *block, int *err)
 {
-	int newblock;
+	udf_pblk_t newblock;
 	struct buffer_head *dbh = NULL;
 	struct kernel_lb_addr eloc;
 	uint8_t alloctype;
@@ -446,7 +446,7 @@ abort:
 	return err;
 }
 
-static struct buffer_head *udf_getblk(struct inode *inode, long block,
+static struct buffer_head *udf_getblk(struct inode *inode, udf_pblk_t block,
 				      int create, int *err)
 {
 	struct buffer_head *bh;
@@ -480,7 +480,7 @@ static int udf_do_extend_file(struct inode *inode,
 	int count = 0, fake = !(last_ext->extLength & UDF_EXTENT_LENGTH_MASK);
 	struct super_block *sb = inode->i_sb;
 	struct kernel_lb_addr prealloc_loc = {};
-	int prealloc_len = 0;
+	uint32_t prealloc_len = 0;
 	struct udf_inode_info *iinfo;
 	int err;
 
@@ -663,11 +663,11 @@ static sector_t inode_getblk(struct inode *inode, sector_t block,
 	struct kernel_lb_addr eloc, tmpeloc;
 	int c = 1;
 	loff_t lbcount = 0, b_off = 0;
-	uint32_t newblocknum, newblock;
+	udf_pblk_t newblocknum, newblock;
 	sector_t offset = 0;
 	int8_t etype;
 	struct udf_inode_info *iinfo = UDF_I(inode);
-	int goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
+	udf_pblk_t goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
 	int lastblock = 0;
 	bool isBeyondEOF;
 
@@ -879,8 +879,8 @@ out_free:
 }
 
 static void udf_split_extents(struct inode *inode, int *c, int offset,
-			      int newblocknum, struct kernel_long_ad *laarr,
-			      int *endnum)
+			       udf_pblk_t newblocknum,
+			       struct kernel_long_ad *laarr, int *endnum)
 {
 	unsigned long blocksize = inode->i_sb->s_blocksize;
 	unsigned char blocksize_bits = inode->i_sb->s_blocksize_bits;
@@ -1166,7 +1166,7 @@ static void udf_update_extents(struct inode *inode, struct kernel_long_ad *laarr
 	}
 }
 
-struct buffer_head *udf_bread(struct inode *inode, int block,
+struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
 			      int create, int *err)
 {
 	struct buffer_head *bh = NULL;
@@ -1193,7 +1193,7 @@ int udf_setsize(struct inode *inode, loff_t newsize)
 {
 	int err;
 	struct udf_inode_info *iinfo;
-	int bsize = i_blocksize(inode);
+	unsigned int bsize = i_blocksize(inode);
 
 	if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
 	      S_ISLNK(inode->i_mode)))
@@ -1278,14 +1278,14 @@ static int udf_read_inode(struct inode *inode, bool hidden_inode)
 
 reread:
 	if (iloc->partitionReferenceNum >= sbi->s_partitions) {
-		udf_debug("partition reference: %d > logical volume partitions: %d\n",
+		udf_debug("partition reference: %u > logical volume partitions: %u\n",
 			  iloc->partitionReferenceNum, sbi->s_partitions);
 		return -EIO;
 	}
 
 	if (iloc->logicalBlockNum >=
 	    sbi->s_partmaps[iloc->partitionReferenceNum].s_partition_len) {
-		udf_debug("block=%d, partition=%d out of range\n",
+		udf_debug("block=%u, partition=%u out of range\n",
 			  iloc->logicalBlockNum, iloc->partitionReferenceNum);
 		return -EIO;
 	}
@@ -1304,13 +1304,13 @@ reread:
 	 */
 	bh = udf_read_ptagged(inode->i_sb, iloc, 0, &ident);
 	if (!bh) {
-		udf_err(inode->i_sb, "(ino %ld) failed !bh\n", inode->i_ino);
+		udf_err(inode->i_sb, "(ino %lu) failed !bh\n", inode->i_ino);
 		return -EIO;
 	}
 
 	if (ident != TAG_IDENT_FE && ident != TAG_IDENT_EFE &&
 	    ident != TAG_IDENT_USE) {
-		udf_err(inode->i_sb, "(ino %ld) failed ident=%d\n",
+		udf_err(inode->i_sb, "(ino %lu) failed ident=%u\n",
 			inode->i_ino, ident);
 		goto out;
 	}
@@ -1346,7 +1346,7 @@ reread:
 		}
 		brelse(ibh);
 	} else if (fe->icbTag.strategyType != cpu_to_le16(4)) {
-		udf_err(inode->i_sb, "unsupported strategy type: %d\n",
+		udf_err(inode->i_sb, "unsupported strategy type: %u\n",
 			le16_to_cpu(fe->icbTag.strategyType));
 		goto out;
 	}
@@ -1547,7 +1547,7 @@ reread:
 		udf_debug("METADATA BITMAP FILE-----\n");
 		break;
 	default:
-		udf_err(inode->i_sb, "(ino %ld) failed unknown file type=%d\n",
+		udf_err(inode->i_sb, "(ino %lu) failed unknown file type=%u\n",
 			inode->i_ino, fe->icbTag.fileType);
 		goto out;
 	}
@@ -1852,7 +1852,7 @@ struct inode *__udf_iget(struct super_block *sb, struct kernel_lb_addr *ino,
 	return inode;
 }
 
-int udf_setup_indirect_aext(struct inode *inode, int block,
+int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block,
 			    struct extent_position *epos)
 {
 	struct super_block *sb = inode->i_sb;
@@ -1994,7 +1994,7 @@ int udf_add_aext(struct inode *inode, struct extent_position *epos,
 
 	if (epos->offset + (2 * adsize) > sb->s_blocksize) {
 		int err;
-		int new_block;
+		udf_pblk_t new_block;
 
 		new_block = udf_new_block(sb, NULL,
 					  epos->block.partitionReferenceNum,
@@ -2076,7 +2076,7 @@ int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
 
 	while ((etype = udf_current_aext(inode, epos, eloc, elen, inc)) ==
 	       (EXT_NEXT_EXTENT_ALLOCDECS >> 30)) {
-		int block;
+		udf_pblk_t block;
 
 		if (++indirections > UDF_MAX_INDIR_EXTS) {
 			udf_err(inode->i_sb,
@@ -2091,7 +2091,7 @@ int8_t udf_next_aext(struct inode *inode, struct extent_position *epos,
 		block = udf_get_lb_pblock(inode->i_sb, &epos->block, 0);
 		epos->bh = udf_tread(inode->i_sb, block);
 		if (!epos->bh) {
-			udf_debug("reading block %d failed!\n", block);
+			udf_debug("reading block %u failed!\n", block);
 			return -1;
 		}
 	}
@@ -2146,7 +2146,7 @@ int8_t udf_current_aext(struct inode *inode, struct extent_position *epos,
 		*elen = le32_to_cpu(lad->extLength) & UDF_EXTENT_LENGTH_MASK;
 		break;
 	default:
-		udf_debug("alloc_type = %d unsupported\n", iinfo->i_alloc_type);
+		udf_debug("alloc_type = %u unsupported\n", iinfo->i_alloc_type);
 		return -1;
 	}
 
@@ -2289,13 +2289,13 @@ int8_t inode_bmap(struct inode *inode, sector_t block,
 	return etype;
 }
 
-long udf_block_map(struct inode *inode, sector_t block)
+udf_pblk_t udf_block_map(struct inode *inode, sector_t block)
 {
 	struct kernel_lb_addr eloc;
 	uint32_t elen;
 	sector_t offset;
 	struct extent_position epos = {};
-	int ret;
+	udf_pblk_t ret;
 
 	down_read(&UDF_I(inode)->i_data_sem);
 
diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 3949c4bec3a3..401e64cde1be 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -28,7 +28,7 @@
 #include "udf_i.h"
 #include "udf_sb.h"
 
-struct buffer_head *udf_tgetblk(struct super_block *sb, int block)
+struct buffer_head *udf_tgetblk(struct super_block *sb, udf_pblk_t block)
 {
 	if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV))
 		return sb_getblk(sb, udf_fixed_to_variable(block));
@@ -36,7 +36,7 @@ struct buffer_head *udf_tgetblk(struct super_block *sb, int block)
 		return sb_getblk(sb, block);
 }
 
-struct buffer_head *udf_tread(struct super_block *sb, int block)
+struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block)
 {
 	if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV))
 		return sb_bread(sb, udf_fixed_to_variable(block));
@@ -209,7 +209,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
 
 	bh = udf_tread(sb, block);
 	if (!bh) {
-		udf_err(sb, "read failed, block=%u, location=%d\n",
+		udf_err(sb, "read failed, block=%u, location=%u\n",
 			block, location);
 		return NULL;
 	}
@@ -247,7 +247,7 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
 					le16_to_cpu(tag_p->descCRCLength)))
 		return bh;
 
-	udf_debug("Crc failure block %d: crc = %d, crclen = %d\n", block,
+	udf_debug("Crc failure block %u: crc = %u, crclen = %u\n", block,
 		  le16_to_cpu(tag_p->descCRC),
 		  le16_to_cpu(tag_p->descCRCLength));
 error_out:
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 885198dfd9f8..0458dd47e105 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -164,7 +164,8 @@ static struct fileIdentDesc *udf_find_entry(struct inode *dir,
 {
 	struct fileIdentDesc *fi = NULL;
 	loff_t f_pos;
-	int block, flen;
+	udf_pblk_t block;
+	int flen;
 	unsigned char *fname = NULL, *copy_name = NULL;
 	unsigned char *nameptr;
 	uint8_t lfi;
@@ -352,7 +353,7 @@ static struct fileIdentDesc *udf_add_entry(struct inode *dir,
 	int nfidlen;
 	uint8_t lfi;
 	uint16_t liu;
-	int block;
+	udf_pblk_t block;
 	struct kernel_lb_addr eloc;
 	uint32_t elen = 0;
 	sector_t offset;
@@ -749,7 +750,7 @@ static int empty_dir(struct inode *dir)
 	struct udf_fileident_bh fibh;
 	loff_t f_pos;
 	loff_t size = udf_ext0_offset(dir) + dir->i_size;
-	int block;
+	udf_pblk_t block;
 	struct kernel_lb_addr eloc;
 	uint32_t elen;
 	sector_t offset;
@@ -839,7 +840,7 @@ static int udf_rmdir(struct inode *dir, struct dentry *dentry)
 	if (retval)
 		goto end_rmdir;
 	if (inode->i_nlink != 2)
-		udf_warn(inode->i_sb, "empty directory has nlink != 2 (%d)\n",
+		udf_warn(inode->i_sb, "empty directory has nlink != 2 (%u)\n",
 			 inode->i_nlink);
 	clear_nlink(inode);
 	inode->i_size = 0;
@@ -881,7 +882,7 @@ static int udf_unlink(struct inode *dir, struct dentry *dentry)
 		goto end_unlink;
 
 	if (!inode->i_nlink) {
-		udf_debug("Deleting nonexistent file (%lu), %d\n",
+		udf_debug("Deleting nonexistent file (%lu), %u\n",
 			  inode->i_ino, inode->i_nlink);
 		set_nlink(inode, 1);
 	}
@@ -913,7 +914,7 @@ static int udf_symlink(struct inode *dir, struct dentry *dentry,
 	int eoffset, elen = 0;
 	uint8_t *ea;
 	int err;
-	int block;
+	udf_pblk_t block;
 	unsigned char *name = NULL;
 	int namelen;
 	struct udf_inode_info *iinfo;
diff --git a/fs/udf/partition.c b/fs/udf/partition.c
index 888c364b2fe9..090baff83990 100644
--- a/fs/udf/partition.c
+++ b/fs/udf/partition.c
@@ -32,7 +32,7 @@ uint32_t udf_get_pblock(struct super_block *sb, uint32_t block,
 	struct udf_sb_info *sbi = UDF_SB(sb);
 	struct udf_part_map *map;
 	if (partition >= sbi->s_partitions) {
-		udf_debug("block=%d, partition=%d, offset=%d: invalid partition\n",
+		udf_debug("block=%u, partition=%u, offset=%u: invalid partition\n",
 			  block, partition, offset);
 		return 0xFFFFFFFF;
 	}
@@ -59,7 +59,7 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
 	vdata = &map->s_type_specific.s_virtual;
 
 	if (block > vdata->s_num_entries) {
-		udf_debug("Trying to access block beyond end of VAT (%d max %d)\n",
+		udf_debug("Trying to access block beyond end of VAT (%u max %u)\n",
 			  block, vdata->s_num_entries);
 		return 0xFFFFFFFF;
 	}
@@ -83,7 +83,7 @@ uint32_t udf_get_pblock_virt15(struct super_block *sb, uint32_t block,
 
 	bh = sb_bread(sb, loc);
 	if (!bh) {
-		udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%d,%d) VAT: %d[%d]\n",
+		udf_debug("get_pblock(UDF_VIRTUAL_MAP:%p,%u,%u) VAT: %u[%u]\n",
 			  sb, block, partition, loc, index);
 		return 0xFFFFFFFF;
 	}
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 93c59630512b..f80e0a0f24d3 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -366,7 +366,7 @@ static int udf_show_options(struct seq_file *seq, struct dentry *root)
 	if (sbi->s_dmode != UDF_INVALID_MODE)
 		seq_printf(seq, ",dmode=%ho", sbi->s_dmode);
 	if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET))
-		seq_printf(seq, ",session=%u", sbi->s_session);
+		seq_printf(seq, ",session=%d", sbi->s_session);
 	if (UDF_QUERY_FLAG(sb, UDF_FLAG_LASTBLOCK_SET))
 		seq_printf(seq, ",lastblock=%u", sbi->s_last_block);
 	if (sbi->s_anchor != 0)
@@ -673,7 +673,7 @@ static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
 	sbi->s_dmode = uopt.dmode;
 	write_unlock(&sbi->s_cred_lock);
 
-	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
+	if ((bool)(*flags & MS_RDONLY) == sb_rdonly(sb))
 		goto out_unlock;
 
 	if (*flags & MS_RDONLY)
@@ -703,9 +703,9 @@ static loff_t udf_check_vsd(struct super_block *sb)
 	else
 		sectorsize = sb->s_blocksize;
 
-	sector += (sbi->s_session << sb->s_blocksize_bits);
+	sector += (((loff_t)sbi->s_session) << sb->s_blocksize_bits);
 
-	udf_debug("Starting at sector %u (%ld byte sectors)\n",
+	udf_debug("Starting at sector %u (%lu byte sectors)\n",
 		  (unsigned int)(sector >> sb->s_blocksize_bits),
 		  sb->s_blocksize);
 	/* Process the sequence (if applicable). The hard limit on the sector
@@ -868,7 +868,7 @@ static int udf_find_fileset(struct super_block *sb,
 
 	if ((fileset->logicalBlockNum != 0xFFFFFFFF ||
 	     fileset->partitionReferenceNum != 0xFFFF) && bh) {
-		udf_debug("Fileset at block=%d, partition=%d\n",
+		udf_debug("Fileset at block=%u, partition=%u\n",
 			  fileset->logicalBlockNum,
 			  fileset->partitionReferenceNum);
 
@@ -981,14 +981,14 @@ static int udf_load_metadata_files(struct super_block *sb, int partition,
 	mdata->s_phys_partition_ref = type1_index;
 
 	/* metadata address */
-	udf_debug("Metadata file location: block = %d part = %d\n",
+	udf_debug("Metadata file location: block = %u part = %u\n",
 		  mdata->s_meta_file_loc, mdata->s_phys_partition_ref);
 
 	fe = udf_find_metadata_inode_efe(sb, mdata->s_meta_file_loc,
 					 mdata->s_phys_partition_ref);
 	if (IS_ERR(fe)) {
 		/* mirror file entry */
-		udf_debug("Mirror metadata file location: block = %d part = %d\n",
+		udf_debug("Mirror metadata file location: block = %u part = %u\n",
 			  mdata->s_mirror_file_loc, mdata->s_phys_partition_ref);
 
 		fe = udf_find_metadata_inode_efe(sb, mdata->s_mirror_file_loc,
@@ -1012,12 +1012,12 @@ static int udf_load_metadata_files(struct super_block *sb, int partition,
 		addr.logicalBlockNum = mdata->s_bitmap_file_loc;
 		addr.partitionReferenceNum = mdata->s_phys_partition_ref;
 
-		udf_debug("Bitmap file location: block = %d part = %d\n",
+		udf_debug("Bitmap file location: block = %u part = %u\n",
 			  addr.logicalBlockNum, addr.partitionReferenceNum);
 
 		fe = udf_iget_special(sb, &addr);
 		if (IS_ERR(fe)) {
-			if (sb->s_flags & MS_RDONLY)
+			if (sb_rdonly(sb))
 				udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n");
 			else {
 				udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n");
@@ -1042,7 +1042,7 @@ static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
 
 	UDF_SB(sb)->s_serial_number = le16_to_cpu(fset->descTag.tagSerialNum);
 
-	udf_debug("Rootdir at block=%d, partition=%d\n",
+	udf_debug("Rootdir at block=%u, partition=%u\n",
 		  root->logicalBlockNum, root->partitionReferenceNum);
 }
 
@@ -1097,7 +1097,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
 	if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_OVERWRITABLE))
 		map->s_partition_flags |= UDF_PART_FLAG_OVERWRITABLE;
 
-	udf_debug("Partition (%d type %x) starts at physical %d, block length %d\n",
+	udf_debug("Partition (%d type %x) starts at physical %u, block length %u\n",
 		  p_index, map->s_partition_type,
 		  map->s_partition_root, map->s_partition_len);
 
@@ -1122,7 +1122,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
 		}
 		map->s_uspace.s_table = inode;
 		map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
-		udf_debug("unallocSpaceTable (part %d) @ %ld\n",
+		udf_debug("unallocSpaceTable (part %d) @ %lu\n",
 			  p_index, map->s_uspace.s_table->i_ino);
 	}
 
@@ -1134,7 +1134,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
 		bitmap->s_extPosition = le32_to_cpu(
 				phd->unallocSpaceBitmap.extPosition);
 		map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
-		udf_debug("unallocSpaceBitmap (part %d) @ %d\n",
+		udf_debug("unallocSpaceBitmap (part %d) @ %u\n",
 			  p_index, bitmap->s_extPosition);
 	}
 
@@ -1157,7 +1157,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
 		}
 		map->s_fspace.s_table = inode;
 		map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
-		udf_debug("freedSpaceTable (part %d) @ %ld\n",
+		udf_debug("freedSpaceTable (part %d) @ %lu\n",
 			  p_index, map->s_fspace.s_table->i_ino);
 	}
 
@@ -1169,7 +1169,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
 		bitmap->s_extPosition = le32_to_cpu(
 				phd->freedSpaceBitmap.extPosition);
 		map->s_partition_flags |= UDF_PART_FLAG_FREED_BITMAP;
-		udf_debug("freedSpaceBitmap (part %d) @ %d\n",
+		udf_debug("freedSpaceBitmap (part %d) @ %u\n",
 			  p_index, bitmap->s_extPosition);
 	}
 	return 0;
@@ -1282,7 +1282,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
 	/* First scan for TYPE1 and SPARABLE partitions */
 	for (i = 0; i < sbi->s_partitions; i++) {
 		map = &sbi->s_partmaps[i];
-		udf_debug("Searching map: (%d == %d)\n",
+		udf_debug("Searching map: (%u == %u)\n",
 			  map->s_partition_num, partitionNumber);
 		if (map->s_partition_num == partitionNumber &&
 		    (map->s_partition_type == UDF_TYPE1_MAP15 ||
@@ -1291,7 +1291,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
 	}
 
 	if (i >= sbi->s_partitions) {
-		udf_debug("Partition (%d) not found in partition map\n",
+		udf_debug("Partition (%u) not found in partition map\n",
 			  partitionNumber);
 		ret = 0;
 		goto out_bh;
@@ -1341,7 +1341,7 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
 		 * writing to it (we overwrite blocks instead of relocating
 		 * them).
 		 */
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			ret = -EACCES;
 			goto out_bh;
 		}
@@ -1483,7 +1483,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
 				struct metadataPartitionMap *mdm =
 						(struct metadataPartitionMap *)
 						&(lvd->partitionMaps[offset]);
-				udf_debug("Parsing Logical vol part %d type %d  id=%s\n",
+				udf_debug("Parsing Logical vol part %d type %u  id=%s\n",
 					  i, type, UDF_ID_METADATA);
 
 				map->s_partition_type = UDF_METADATA_MAP25;
@@ -1505,17 +1505,17 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
 				udf_debug("Metadata Ident suffix=0x%x\n",
 					  le16_to_cpu(*(__le16 *)
 						      mdm->partIdent.identSuffix));
-				udf_debug("Metadata part num=%d\n",
+				udf_debug("Metadata part num=%u\n",
 					  le16_to_cpu(mdm->partitionNum));
-				udf_debug("Metadata part alloc unit size=%d\n",
+				udf_debug("Metadata part alloc unit size=%u\n",
 					  le32_to_cpu(mdm->allocUnitSize));
-				udf_debug("Metadata file loc=%d\n",
+				udf_debug("Metadata file loc=%u\n",
 					  le32_to_cpu(mdm->metadataFileLoc));
-				udf_debug("Mirror file loc=%d\n",
+				udf_debug("Mirror file loc=%u\n",
 					  le32_to_cpu(mdm->metadataMirrorFileLoc));
-				udf_debug("Bitmap file loc=%d\n",
+				udf_debug("Bitmap file loc=%u\n",
 					  le32_to_cpu(mdm->metadataBitmapFileLoc));
-				udf_debug("Flags: %d %d\n",
+				udf_debug("Flags: %d %u\n",
 					  mdata->s_flags, mdm->flags);
 			} else {
 				udf_debug("Unknown ident: %s\n",
@@ -1525,7 +1525,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
 			map->s_volumeseqnum = le16_to_cpu(upm2->volSeqNum);
 			map->s_partition_num = le16_to_cpu(upm2->partitionNum);
 		}
-		udf_debug("Partition (%d:%d) type %d on volume %d\n",
+		udf_debug("Partition (%d:%u) type %u on volume %u\n",
 			  i, map->s_partition_num, type, map->s_volumeseqnum);
 	}
 
@@ -1533,7 +1533,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
 		struct long_ad *la = (struct long_ad *)&(lvd->logicalVolContentsUse[0]);
 
 		*fileset = lelb_to_cpu(la->extLocation);
-		udf_debug("FileSet found in LogicalVolDesc at block=%d, partition=%d\n",
+		udf_debug("FileSet found in LogicalVolDesc at block=%u, partition=%u\n",
 			  fileset->logicalBlockNum,
 			  fileset->partitionReferenceNum);
 	}
@@ -2159,7 +2159,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
 			ret = udf_load_vrs(sb, &uopt, silent, &fileset);
 			if (ret < 0) {
 				if (!silent && ret != -EACCES) {
-					pr_notice("Scanning with blocksize %d failed\n",
+					pr_notice("Scanning with blocksize %u failed\n",
 						  uopt.blocksize);
 				}
 				brelse(sbi->s_lvid_bh);
@@ -2184,7 +2184,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
 		goto error_out;
 	}
 
-	udf_debug("Lastblock=%d\n", sbi->s_last_block);
+	udf_debug("Lastblock=%u\n", sbi->s_last_block);
 
 	if (sbi->s_lvid_bh) {
 		struct logicalVolIntegrityDescImpUse *lvidiu =
@@ -2205,7 +2205,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
 			ret = -EINVAL;
 			goto error_out;
 		} else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION &&
-			   !(sb->s_flags & MS_RDONLY)) {
+			   !sb_rdonly(sb)) {
 			ret = -EACCES;
 			goto error_out;
 		}
@@ -2226,7 +2226,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
 
 	if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
 			UDF_PART_FLAG_READ_ONLY &&
-	    !(sb->s_flags & MS_RDONLY)) {
+	    !sb_rdonly(sb)) {
 		ret = -EACCES;
 		goto error_out;
 	}
@@ -2245,7 +2245,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
 			 le16_to_cpu(ts.year), ts.month, ts.day,
 			 ts.hour, ts.minute, le16_to_cpu(ts.typeAndTimezone));
 	}
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		udf_open_lvid(sb);
 		lvid_open = true;
 	}
@@ -2255,7 +2255,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
 	/* perhaps it's not extensible enough, but for now ... */
 	inode = udf_iget(sb, &rootdir);
 	if (IS_ERR(inode)) {
-		udf_err(sb, "Error in udf_iget, block=%d, partition=%d\n",
+		udf_err(sb, "Error in udf_iget, block=%u, partition=%u\n",
 		       rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
 		ret = PTR_ERR(inode);
 		goto error_out;
@@ -2332,7 +2332,7 @@ static void udf_put_super(struct super_block *sb)
 	if (UDF_QUERY_FLAG(sb, UDF_FLAG_NLS_MAP))
 		unload_nls(sbi->s_nls_map);
 #endif
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		udf_close_lvid(sb);
 	brelse(sbi->s_lvid_bh);
 	udf_sb_free_partitions(sb);
@@ -2389,7 +2389,7 @@ static unsigned int udf_count_free_bitmap(struct super_block *sb,
 	struct buffer_head *bh = NULL;
 	unsigned int accum = 0;
 	int index;
-	int block = 0, newblock;
+	udf_pblk_t block = 0, newblock;
 	struct kernel_lb_addr loc;
 	uint32_t bytes;
 	uint8_t *ptr;
diff --git a/fs/udf/truncate.c b/fs/udf/truncate.c
index 42b8c57795cb..b647f0bd150c 100644
--- a/fs/udf/truncate.c
+++ b/fs/udf/truncate.c
@@ -48,7 +48,7 @@ static void extent_trunc(struct inode *inode, struct extent_position *epos,
 
 	if (elen != nelen) {
 		udf_write_aext(inode, epos, &neloc, nelen, 0);
-		if (last_block - first_block > 0) {
+		if (last_block > first_block) {
 			if (etype == (EXT_RECORDED_ALLOCATED >> 30))
 				mark_inode_dirty(inode);
 
diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index b1b9a63d8cf3..630426ffb775 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UDF_I_H
 #define _UDF_I_H
 
diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h
index c13875d669c0..68c9f1d618f5 100644
--- a/fs/udf/udf_sb.h
+++ b/fs/udf/udf_sb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_UDF_SB_H
 #define __LINUX_UDF_SB_H
 
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index 63b034984378..f5e0fe78979e 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UDF_DECL_H
 #define __UDF_DECL_H
 
@@ -73,6 +74,8 @@ static inline size_t udf_ext0_offset(struct inode *inode)
 /* computes tag checksum */
 u8 udf_tag_checksum(const struct tag *t);
 
+typedef uint32_t udf_pblk_t;
+
 struct dentry;
 struct inode;
 struct task_struct;
@@ -144,15 +147,17 @@ static inline struct inode *udf_iget(struct super_block *sb,
 	return __udf_iget(sb, ino, false);
 }
 extern int udf_expand_file_adinicb(struct inode *);
-extern struct buffer_head *udf_expand_dir_adinicb(struct inode *, int *, int *);
-extern struct buffer_head *udf_bread(struct inode *, int, int, int *);
+extern struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
+						  udf_pblk_t *block, int *err);
+extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
+				      int create, int *err);
 extern int udf_setsize(struct inode *, loff_t);
 extern void udf_evict_inode(struct inode *);
 extern int udf_write_inode(struct inode *, struct writeback_control *wbc);
-extern long udf_block_map(struct inode *, sector_t);
+extern udf_pblk_t udf_block_map(struct inode *inode, sector_t block);
 extern int8_t inode_bmap(struct inode *, sector_t, struct extent_position *,
 			 struct kernel_lb_addr *, uint32_t *, sector_t *);
-extern int udf_setup_indirect_aext(struct inode *inode, int block,
+extern int udf_setup_indirect_aext(struct inode *inode, udf_pblk_t block,
 				   struct extent_position *epos);
 extern int __udf_add_aext(struct inode *inode, struct extent_position *epos,
 			  struct kernel_lb_addr *eloc, uint32_t elen, int inc);
@@ -168,8 +173,9 @@ extern int8_t udf_current_aext(struct inode *, struct extent_position *,
 			       struct kernel_lb_addr *, uint32_t *, int);
 
 /* misc.c */
-extern struct buffer_head *udf_tgetblk(struct super_block *, int);
-extern struct buffer_head *udf_tread(struct super_block *, int);
+extern struct buffer_head *udf_tgetblk(struct super_block *sb,
+					udf_pblk_t block);
+extern struct buffer_head *udf_tread(struct super_block *sb, udf_pblk_t block);
 extern struct genericFormat *udf_add_extendedattr(struct inode *, uint32_t,
 						  uint32_t, uint8_t);
 extern struct genericFormat *udf_get_extendedattr(struct inode *, uint32_t,
@@ -228,8 +234,8 @@ extern void udf_free_blocks(struct super_block *, struct inode *,
 			    struct kernel_lb_addr *, uint32_t, uint32_t);
 extern int udf_prealloc_blocks(struct super_block *, struct inode *, uint16_t,
 			       uint32_t, uint32_t);
-extern int udf_new_block(struct super_block *, struct inode *, uint16_t,
-			 uint32_t, int *);
+extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode,
+				 uint16_t partition, uint32_t goal, int *err);
 
 /* directory.c */
 extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
diff --git a/fs/udf/udfend.h b/fs/udf/udfend.h
index 6a9f3a9cc428..a4363ac2cfeb 100644
--- a/fs/udf/udfend.h
+++ b/fs/udf/udfend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UDF_ENDIAN_H
 #define __UDF_ENDIAN_H
 
diff --git a/fs/udf/unicode.c b/fs/udf/unicode.c
index 695389a4fc23..f897e55f2cd0 100644
--- a/fs/udf/unicode.c
+++ b/fs/udf/unicode.c
@@ -200,7 +200,7 @@ static int udf_name_from_CS0(uint8_t *str_o, int str_max_len,
 	cmp_id = ocu[0];
 	if (cmp_id != 8 && cmp_id != 16) {
 		memset(str_o, 0, str_max_len);
-		pr_err("unknown compression code (%d)\n", cmp_id);
+		pr_err("unknown compression code (%u)\n", cmp_id);
 		return -EINVAL;
 	}
 	u_ch = cmp_id >> 3;
diff --git a/fs/ufs/balloc.c b/fs/ufs/balloc.c
index f80be4c5df9d..b5cd79065ef9 100644
--- a/fs/ufs/balloc.c
+++ b/fs/ufs/balloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/balloc.c
  *
diff --git a/fs/ufs/cylinder.c b/fs/ufs/cylinder.c
index b4676322ddb6..1abe5454de47 100644
--- a/fs/ufs/cylinder.c
+++ b/fs/ufs/cylinder.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/cylinder.c
  *
diff --git a/fs/ufs/dir.c b/fs/ufs/dir.c
index 48609f1d9580..2edc1755b7c5 100644
--- a/fs/ufs/dir.c
+++ b/fs/ufs/dir.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/ufs_dir.c
  *
diff --git a/fs/ufs/file.c b/fs/ufs/file.c
index 042ddbf110cc..7e087581be7e 100644
--- a/fs/ufs/file.c
+++ b/fs/ufs/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/file.c
  *
diff --git a/fs/ufs/ialloc.c b/fs/ufs/ialloc.c
index d1dd8cc33179..916b4a428933 100644
--- a/fs/ufs/ialloc.c
+++ b/fs/ufs/ialloc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/ialloc.c
  *
diff --git a/fs/ufs/inode.c b/fs/ufs/inode.c
index f36d6a53687d..afb601c0dda0 100644
--- a/fs/ufs/inode.c
+++ b/fs/ufs/inode.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/inode.c
  *
diff --git a/fs/ufs/namei.c b/fs/ufs/namei.c
index 8eca4eda8450..32545cd00ceb 100644
--- a/fs/ufs/namei.c
+++ b/fs/ufs/namei.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/fs/ufs/namei.c
  *
diff --git a/fs/ufs/super.c b/fs/ufs/super.c
index 0a4f58a5073c..6440003f8ddc 100644
--- a/fs/ufs/super.c
+++ b/fs/ufs/super.c
@@ -278,7 +278,7 @@ void ufs_error (struct super_block * sb, const char * function,
 	uspi = UFS_SB(sb)->s_uspi;
 	usb1 = ubh_get_usb_first(uspi);
 	
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		usb1->fs_clean = UFS_FSBAD;
 		ubh_mark_buffer_dirty(USPI_UBH(uspi));
 		ufs_mark_sb_dirty(sb);
@@ -312,7 +312,7 @@ void ufs_panic (struct super_block * sb, const char * function,
 	uspi = UFS_SB(sb)->s_uspi;
 	usb1 = ubh_get_usb_first(uspi);
 	
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		usb1->fs_clean = UFS_FSBAD;
 		ubh_mark_buffer_dirty(USPI_UBH(uspi));
 		ufs_mark_sb_dirty(sb);
@@ -742,7 +742,7 @@ static void ufs_put_super(struct super_block *sb)
 
 	UFSD("ENTER\n");
 
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		ufs_put_super_internal(sb);
 	cancel_delayed_work_sync(&sbi->sync_work);
 
@@ -793,7 +793,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 	UFSD("ENTER\n");
 
 #ifndef CONFIG_UFS_FS_WRITE
-	if (!(sb->s_flags & MS_RDONLY)) {
+	if (!sb_rdonly(sb)) {
 		pr_err("ufs was compiled with read-only support, can't be mounted as read-write\n");
 		return -EROFS;
 	}
@@ -805,7 +805,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_fs_info = sbi;
 	sbi->sb = sb;
 
-	UFSD("flag %u\n", (int)(sb->s_flags & MS_RDONLY));
+	UFSD("flag %u\n", (int)(sb_rdonly(sb)));
 	
 	mutex_init(&sbi->s_lock);
 	spin_lock_init(&sbi->work_lock);
@@ -902,7 +902,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		uspi->s_sbsize = super_block_size = 2048;
 		uspi->s_sbbase = 0;
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!silent)
 				pr_info("ufstype=old is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
@@ -918,7 +918,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		uspi->s_sbbase = 0;
 		uspi->s_dirblksize = 1024;
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!silent)
 				pr_info("ufstype=nextstep is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
@@ -934,7 +934,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		uspi->s_sbbase = 0;
 		uspi->s_dirblksize = 1024;
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!silent)
 				pr_info("ufstype=nextstep-cd is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
@@ -950,7 +950,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		uspi->s_sbbase = 0;
 		uspi->s_dirblksize = 1024;
 		flags |= UFS_DE_44BSD | UFS_UID_44BSD | UFS_ST_44BSD | UFS_CG_44BSD;
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!silent)
 				pr_info("ufstype=openstep is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
@@ -965,7 +965,7 @@ static int ufs_fill_super(struct super_block *sb, void *data, int silent)
 		uspi->s_sbsize = super_block_size = 2048;
 		uspi->s_sbbase = 0;
 		flags |= UFS_DE_OLD | UFS_UID_OLD | UFS_ST_OLD | UFS_CG_OLD;
-		if (!(sb->s_flags & MS_RDONLY)) {
+		if (!sb_rdonly(sb)) {
 			if (!silent)
 				pr_info("ufstype=hp is supported read-only\n");
 			sb->s_flags |= MS_RDONLY;
@@ -1273,7 +1273,7 @@ magic_found:
 	/*
 	 * Read cylinder group structures
 	 */
-	if (!(sb->s_flags & MS_RDONLY))
+	if (!sb_rdonly(sb))
 		if (!ufs_read_cylinder_structures(sb))
 			goto failed;
 
@@ -1328,7 +1328,7 @@ static int ufs_remount (struct super_block *sb, int *mount_flags, char *data)
 		return -EINVAL;
 	}
 
-	if ((*mount_flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) {
+	if ((bool)(*mount_flags & MS_RDONLY) == sb_rdonly(sb)) {
 		UFS_SB(sb)->s_mount_opt = new_mount_opt;
 		mutex_unlock(&UFS_SB(sb)->s_lock);
 		return 0;
diff --git a/fs/ufs/swab.h b/fs/ufs/swab.h
index 8d974c4fd18b..a0e1d8c827f4 100644
--- a/fs/ufs/swab.h
+++ b/fs/ufs/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/fs/ufs/swab.h
  *
diff --git a/fs/ufs/ufs.h b/fs/ufs/ufs.h
index c87f4c3fa9dd..b49e0efdf3d7 100644
--- a/fs/ufs/ufs.h
+++ b/fs/ufs/ufs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UFS_UFS_H
 #define _UFS_UFS_H 1
 
diff --git a/fs/ufs/ufs_fs.h b/fs/ufs/ufs_fs.h
index 150eef6f1233..ef9ead44776a 100644
--- a/fs/ufs/ufs_fs.h
+++ b/fs/ufs/ufs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/ufs_fs.h
  *
diff --git a/fs/ufs/util.c b/fs/ufs/util.c
index 02497a492eb2..4fa633f84274 100644
--- a/fs/ufs/util.c
+++ b/fs/ufs/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/fs/ufs/util.c
  *
diff --git a/fs/ufs/util.h b/fs/ufs/util.h
index 9fc7119a1551..1907be6d5808 100644
--- a/fs/ufs/util.h
+++ b/fs/ufs/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/fs/ufs/util.h
  *
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index ef4b48d1ea42..f46d133c0949 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -381,7 +381,7 @@ int handle_userfault(struct vm_fault *vmf, unsigned long reason)
 	 * in __get_user_pages if userfaultfd_release waits on the
 	 * caller of handle_userfault to release the mmap_sem.
 	 */
-	if (unlikely(ACCESS_ONCE(ctx->released))) {
+	if (unlikely(READ_ONCE(ctx->released))) {
 		/*
 		 * Don't return VM_FAULT_SIGBUS in this case, so a non
 		 * cooperative manager can close the uffd after the
@@ -477,7 +477,7 @@ int handle_userfault(struct vm_fault *vmf, unsigned long reason)
 						       vmf->flags, reason);
 	up_read(&mm->mmap_sem);
 
-	if (likely(must_wait && !ACCESS_ONCE(ctx->released) &&
+	if (likely(must_wait && !READ_ONCE(ctx->released) &&
 		   (return_to_userland ? !signal_pending(current) :
 		    !fatal_signal_pending(current)))) {
 		wake_up_poll(&ctx->fd_wqh, POLLIN);
@@ -586,8 +586,14 @@ static void userfaultfd_event_wait_completion(struct userfaultfd_ctx *ctx,
 		set_current_state(TASK_KILLABLE);
 		if (ewq->msg.event == 0)
 			break;
-		if (ACCESS_ONCE(ctx->released) ||
+		if (READ_ONCE(ctx->released) ||
 		    fatal_signal_pending(current)) {
+			/*
+			 * &ewq->wq may be queued in fork_event, but
+			 * __remove_wait_queue ignores the head
+			 * parameter. It would be a problem if it
+			 * didn't.
+			 */
 			__remove_wait_queue(&ctx->event_wqh, &ewq->wq);
 			if (ewq->msg.event == UFFD_EVENT_FORK) {
 				struct userfaultfd_ctx *new;
@@ -827,7 +833,7 @@ static int userfaultfd_release(struct inode *inode, struct file *file)
 	struct userfaultfd_wake_range range = { .len = 0, };
 	unsigned long new_flags;
 
-	ACCESS_ONCE(ctx->released) = true;
+	WRITE_ONCE(ctx->released, true);
 
 	if (!mmget_not_zero(mm))
 		goto wakeup;
@@ -1061,6 +1067,12 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 					(unsigned long)
 					uwq->msg.arg.reserved.reserved1;
 				list_move(&uwq->wq.entry, &fork_event);
+				/*
+				 * fork_nctx can be freed as soon as
+				 * we drop the lock, unless we take a
+				 * reference on it.
+				 */
+				userfaultfd_ctx_get(fork_nctx);
 				spin_unlock(&ctx->event_wqh.lock);
 				ret = 0;
 				break;
@@ -1091,19 +1103,53 @@ static ssize_t userfaultfd_ctx_read(struct userfaultfd_ctx *ctx, int no_wait,
 
 	if (!ret && msg->event == UFFD_EVENT_FORK) {
 		ret = resolve_userfault_fork(ctx, fork_nctx, msg);
+		spin_lock(&ctx->event_wqh.lock);
+		if (!list_empty(&fork_event)) {
+			/*
+			 * The fork thread didn't abort, so we can
+			 * drop the temporary refcount.
+			 */
+			userfaultfd_ctx_put(fork_nctx);
+
+			uwq = list_first_entry(&fork_event,
+					       typeof(*uwq),
+					       wq.entry);
+			/*
+			 * If fork_event list wasn't empty and in turn
+			 * the event wasn't already released by fork
+			 * (the event is allocated on fork kernel
+			 * stack), put the event back to its place in
+			 * the event_wq. fork_event head will be freed
+			 * as soon as we return so the event cannot
+			 * stay queued there no matter the current
+			 * "ret" value.
+			 */
+			list_del(&uwq->wq.entry);
+			__add_wait_queue(&ctx->event_wqh, &uwq->wq);
 
-		if (!ret) {
-			spin_lock(&ctx->event_wqh.lock);
-			if (!list_empty(&fork_event)) {
-				uwq = list_first_entry(&fork_event,
-						       typeof(*uwq),
-						       wq.entry);
-				list_del(&uwq->wq.entry);
-				__add_wait_queue(&ctx->event_wqh, &uwq->wq);
+			/*
+			 * Leave the event in the waitqueue and report
+			 * error to userland if we failed to resolve
+			 * the userfault fork.
+			 */
+			if (likely(!ret))
 				userfaultfd_event_complete(ctx, uwq);
-			}
-			spin_unlock(&ctx->event_wqh.lock);
+		} else {
+			/*
+			 * Here the fork thread aborted and the
+			 * refcount from the fork thread on fork_nctx
+			 * has already been released. We still hold
+			 * the reference we took before releasing the
+			 * lock above. If resolve_userfault_fork
+			 * failed we've to drop it because the
+			 * fork_nctx has to be freed in such case. If
+			 * it succeeded we'll hold it because the new
+			 * uffd references it.
+			 */
+			if (ret)
+				userfaultfd_ctx_put(fork_nctx);
 		}
+		spin_unlock(&ctx->event_wqh.lock);
 	}
 
 	return ret;
diff --git a/fs/utimes.c b/fs/utimes.c
index 6571d8c848a0..e4b3d7c2c9f5 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/file.h>
 #include <linux/mount.h>
 #include <linux/namei.h>
@@ -22,7 +23,7 @@
  */
 SYSCALL_DEFINE2(utime, char __user *, filename, struct utimbuf __user *, times)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if (times) {
 		if (get_user(tv[0].tv_sec, &times->actime) ||
@@ -44,7 +45,7 @@ static bool nsec_valid(long nsec)
 	return nsec >= 0 && nsec <= 999999999;
 }
 
-static int utimes_common(const struct path *path, struct timespec *times)
+static int utimes_common(const struct path *path, struct timespec64 *times)
 {
 	int error;
 	struct iattr newattrs;
@@ -115,7 +116,7 @@ out:
  * must be owner or have write permission.
  * Else, update from *times, must be owner or super user.
  */
-long do_utimes(int dfd, const char __user *filename, struct timespec *times,
+long do_utimes(int dfd, const char __user *filename, struct timespec64 *times,
 	       int flags)
 {
 	int error = -EINVAL;
@@ -167,10 +168,11 @@ out:
 SYSCALL_DEFINE4(utimensat, int, dfd, const char __user *, filename,
 		struct timespec __user *, utimes, int, flags)
 {
-	struct timespec tstimes[2];
+	struct timespec64 tstimes[2];
 
 	if (utimes) {
-		if (copy_from_user(&tstimes, utimes, sizeof(tstimes)))
+		if ((get_timespec64(&tstimes[0], &utimes[0]) ||
+			get_timespec64(&tstimes[1], &utimes[1])))
 			return -EFAULT;
 
 		/* Nothing to do, we must not even check the path.  */
@@ -186,7 +188,7 @@ SYSCALL_DEFINE3(futimesat, int, dfd, const char __user *, filename,
 		struct timeval __user *, utimes)
 {
 	struct timeval times[2];
-	struct timespec tstimes[2];
+	struct timespec64 tstimes[2];
 
 	if (utimes) {
 		if (copy_from_user(&times, utimes, sizeof(times)))
@@ -224,7 +226,7 @@ SYSCALL_DEFINE2(utimes, char __user *, filename,
 COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
 		       struct compat_utimbuf __user *, t)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if (t) {
 		if (get_user(tv[0].tv_sec, &t->actime) ||
@@ -238,11 +240,11 @@ COMPAT_SYSCALL_DEFINE2(utime, const char __user *, filename,
 
 COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filename, struct compat_timespec __user *, t, int, flags)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if  (t) {
-		if (compat_get_timespec(&tv[0], &t[0]) ||
-		    compat_get_timespec(&tv[1], &t[1]))
+		if (compat_get_timespec64(&tv[0], &t[0]) ||
+		    compat_get_timespec64(&tv[1], &t[1]))
 			return -EFAULT;
 
 		if (tv[0].tv_nsec == UTIME_OMIT && tv[1].tv_nsec == UTIME_OMIT)
@@ -253,7 +255,7 @@ COMPAT_SYSCALL_DEFINE4(utimensat, unsigned int, dfd, const char __user *, filena
 
 COMPAT_SYSCALL_DEFINE3(futimesat, unsigned int, dfd, const char __user *, filename, struct compat_timeval __user *, t)
 {
-	struct timespec tv[2];
+	struct timespec64 tv[2];
 
 	if (t) {
 		if (get_user(tv[0].tv_sec, &t[0].tv_sec) ||
diff --git a/fs/xattr.c b/fs/xattr.c
index 4424f7fecf14..61cd28ba25f3 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -250,7 +250,7 @@ xattr_getsecurity(struct inode *inode, const char *name, void *value,
 	}
 	memcpy(value, buffer, len);
 out:
-	security_release_secctx(buffer, len);
+	kfree(buffer);
 out_noalloc:
 	return len;
 }
diff --git a/fs/xfs/Kconfig b/fs/xfs/Kconfig
index 1b98cfa342ab..f42fcf1b5465 100644
--- a/fs/xfs/Kconfig
+++ b/fs/xfs/Kconfig
@@ -71,6 +71,23 @@ config XFS_RT
 
 	  If unsure, say N.
 
+config XFS_ONLINE_SCRUB
+	bool "XFS online metadata check support"
+	default n
+	depends on XFS_FS
+	help
+	  If you say Y here you will be able to check metadata on a
+	  mounted XFS filesystem.  This feature is intended to reduce
+	  filesystem downtime by supplementing xfs_repair.  The key
+	  advantage here is to look for problems proactively so that
+	  they can be dealt with in a controlled manner.
+
+	  This feature is considered EXPERIMENTAL.  Use with caution!
+
+	  See the xfs_scrub man page in section 8 for additional information.
+
+	  If unsure, say N.
+
 config XFS_WARN
 	bool "XFS Verbose Warnings"
 	depends on XFS_FS && !XFS_DEBUG
diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index a6e955bfead8..7ceb41a9786a 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -49,6 +49,7 @@ xfs-y				+= $(addprefix libxfs/, \
 				   xfs_dquot_buf.o \
 				   xfs_ialloc.o \
 				   xfs_ialloc_btree.o \
+				   xfs_iext_tree.o \
 				   xfs_inode_fork.o \
 				   xfs_inode_buf.o \
 				   xfs_log_rlimit.o \
@@ -135,3 +136,31 @@ xfs-$(CONFIG_XFS_POSIX_ACL)	+= xfs_acl.o
 xfs-$(CONFIG_SYSCTL)		+= xfs_sysctl.o
 xfs-$(CONFIG_COMPAT)		+= xfs_ioctl32.o
 xfs-$(CONFIG_EXPORTFS_BLOCK_OPS)	+= xfs_pnfs.o
+
+# online scrub/repair
+ifeq ($(CONFIG_XFS_ONLINE_SCRUB),y)
+
+# Tracepoints like to blow up, so build that before everything else
+
+xfs-y				+= $(addprefix scrub/, \
+				   trace.o \
+				   agheader.o \
+				   alloc.o \
+				   attr.o \
+				   bmap.o \
+				   btree.o \
+				   common.o \
+				   dabtree.o \
+				   dir.o \
+				   ialloc.o \
+				   inode.o \
+				   parent.o \
+				   refcount.o \
+				   rmap.o \
+				   scrub.o \
+				   symlink.o \
+				   )
+
+xfs-$(CONFIG_XFS_RT)		+= scrub/rtbitmap.o
+xfs-$(CONFIG_XFS_QUOTA)		+= scrub/quota.o
+endif
diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
index 4d85992d75b2..758f37ac5ad3 100644
--- a/fs/xfs/kmem.h
+++ b/fs/xfs/kmem.h
@@ -119,8 +119,7 @@ kmem_zone_free(kmem_zone_t *zone, void *ptr)
 static inline void
 kmem_zone_destroy(kmem_zone_t *zone)
 {
-	if (zone)
-		kmem_cache_destroy(zone);
+	kmem_cache_destroy(zone);
 }
 
 extern void *kmem_zone_alloc(kmem_zone_t *, xfs_km_flags_t);
diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index b008ff3250eb..2291f4224e24 100644
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -27,6 +27,7 @@
 #include "xfs_mount.h"
 #include "xfs_defer.h"
 #include "xfs_alloc.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
@@ -156,7 +157,8 @@ __xfs_ag_resv_free(
 	trace_xfs_ag_resv_free(pag, type, 0);
 
 	resv = xfs_perag_resv(pag, type);
-	pag->pag_mount->m_ag_max_usable += resv->ar_asked;
+	if (pag->pag_agno == 0)
+		pag->pag_mount->m_ag_max_usable += resv->ar_asked;
 	/*
 	 * AGFL blocks are always considered "free", so whatever
 	 * was reserved at mount time must be given back at umount.
@@ -216,7 +218,14 @@ __xfs_ag_resv_init(
 		return error;
 	}
 
-	mp->m_ag_max_usable -= ask;
+	/*
+	 * Reduce the maximum per-AG allocation length by however much we're
+	 * trying to reserve for an AG.  Since this is a filesystem-wide
+	 * counter, we only make the adjustment for AG 0.  This assumes that
+	 * there aren't any AGs hungrier for per-AG reservation than AG 0.
+	 */
+	if (pag->pag_agno == 0)
+		mp->m_ag_max_usable -= ask;
 
 	resv = xfs_perag_resv(pag, type);
 	resv->ar_asked = ask;
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 744dcaec34cc..0da80019a917 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -31,6 +31,7 @@
 #include "xfs_alloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_extent_busy.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
@@ -1584,6 +1585,10 @@ xfs_alloc_ag_vextent_small(
 
 				bp = xfs_btree_get_bufs(args->mp, args->tp,
 					args->agno, fbno, 0);
+				if (!bp) {
+					error = -EFSCORRUPTED;
+					goto error0;
+				}
 				xfs_trans_binval(args->tp, bp);
 			}
 			args->len = 1;
@@ -2141,6 +2146,10 @@ xfs_alloc_fix_freelist(
 		if (error)
 			goto out_agbp_relse;
 		bp = xfs_btree_get_bufs(mp, tp, args->agno, bno, 0);
+		if (!bp) {
+			error = -EFSCORRUPTED;
+			goto out_agbp_relse;
+		}
 		xfs_trans_binval(tp, bp);
 	}
 
@@ -2923,3 +2932,52 @@ xfs_alloc_query_all(
 	query.fn = fn;
 	return xfs_btree_query_all(cur, xfs_alloc_query_range_helper, &query);
 }
+
+/* Find the size of the AG, in blocks. */
+xfs_agblock_t
+xfs_ag_block_count(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		agno)
+{
+	ASSERT(agno < mp->m_sb.sb_agcount);
+
+	if (agno < mp->m_sb.sb_agcount - 1)
+		return mp->m_sb.sb_agblocks;
+	return mp->m_sb.sb_dblocks - (agno * mp->m_sb.sb_agblocks);
+}
+
+/*
+ * Verify that an AG block number pointer neither points outside the AG
+ * nor points at static metadata.
+ */
+bool
+xfs_verify_agbno(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		agno,
+	xfs_agblock_t		agbno)
+{
+	xfs_agblock_t		eoag;
+
+	eoag = xfs_ag_block_count(mp, agno);
+	if (agbno >= eoag)
+		return false;
+	if (agbno <= XFS_AGFL_BLOCK(mp))
+		return false;
+	return true;
+}
+
+/*
+ * Verify that an FS block number pointer neither points outside the
+ * filesystem nor points at static AG metadata.
+ */
+bool
+xfs_verify_fsbno(
+	struct xfs_mount	*mp,
+	xfs_fsblock_t		fsbno)
+{
+	xfs_agnumber_t		agno = XFS_FSB_TO_AGNO(mp, fsbno);
+
+	if (agno >= mp->m_sb.sb_agcount)
+		return false;
+	return xfs_verify_agbno(mp, agno, XFS_FSB_TO_AGBNO(mp, fsbno));
+}
diff --git a/fs/xfs/libxfs/xfs_alloc.h b/fs/xfs/libxfs/xfs_alloc.h
index ef26edc2e938..7ba2d129d504 100644
--- a/fs/xfs/libxfs/xfs_alloc.h
+++ b/fs/xfs/libxfs/xfs_alloc.h
@@ -232,5 +232,9 @@ int xfs_alloc_query_range(struct xfs_btree_cur *cur,
 		xfs_alloc_query_range_fn fn, void *priv);
 int xfs_alloc_query_all(struct xfs_btree_cur *cur, xfs_alloc_query_range_fn fn,
 		void *priv);
+xfs_agblock_t xfs_ag_block_count(struct xfs_mount *mp, xfs_agnumber_t agno);
+bool xfs_verify_agbno(struct xfs_mount *mp, xfs_agnumber_t agno,
+		xfs_agblock_t agbno);
+bool xfs_verify_fsbno(struct xfs_mount *mp, xfs_fsblock_t fsbno);
 
 #endif	/* __XFS_ALLOC_H__ */
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index 5c16db86b38f..53cc8b986eac 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -397,13 +397,9 @@ xfs_attr_shortform_bytesfit(xfs_inode_t *dp, int bytes)
 	/* rounded down */
 	offset = (XFS_LITINO(mp, dp->i_d.di_version) - bytes) >> 3;
 
-	switch (dp->i_d.di_format) {
-	case XFS_DINODE_FMT_DEV:
+	if (dp->i_d.di_format == XFS_DINODE_FMT_DEV) {
 		minforkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
 		return (offset >= minforkoff) ? minforkoff : 0;
-	case XFS_DINODE_FMT_UUID:
-		minforkoff = roundup(sizeof(uuid_t), 8) >> 3;
-		return (offset >= minforkoff) ? minforkoff : 0;
 	}
 
 	/*
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 459f4b4f08fe..08df809e2315 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -38,6 +38,7 @@
 #include "xfs_bmap_util.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_rtalloc.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
 #include "xfs_trans_space.h"
@@ -49,7 +50,6 @@
 #include "xfs_rmap.h"
 #include "xfs_ag_resv.h"
 #include "xfs_refcount.h"
-#include "xfs_rmap_btree.h"
 #include "xfs_icache.h"
 
 
@@ -113,28 +113,21 @@ xfs_bmap_compute_maxlevels(
 STATIC int				/* error */
 xfs_bmbt_lookup_eq(
 	struct xfs_btree_cur	*cur,
-	xfs_fileoff_t		off,
-	xfs_fsblock_t		bno,
-	xfs_filblks_t		len,
+	struct xfs_bmbt_irec	*irec,
 	int			*stat)	/* success/failure */
 {
-	cur->bc_rec.b.br_startoff = off;
-	cur->bc_rec.b.br_startblock = bno;
-	cur->bc_rec.b.br_blockcount = len;
+	cur->bc_rec.b = *irec;
 	return xfs_btree_lookup(cur, XFS_LOOKUP_EQ, stat);
 }
 
 STATIC int				/* error */
-xfs_bmbt_lookup_ge(
+xfs_bmbt_lookup_first(
 	struct xfs_btree_cur	*cur,
-	xfs_fileoff_t		off,
-	xfs_fsblock_t		bno,
-	xfs_filblks_t		len,
 	int			*stat)	/* success/failure */
 {
-	cur->bc_rec.b.br_startoff = off;
-	cur->bc_rec.b.br_startblock = bno;
-	cur->bc_rec.b.br_blockcount = len;
+	cur->bc_rec.b.br_startoff = 0;
+	cur->bc_rec.b.br_startblock = 0;
+	cur->bc_rec.b.br_blockcount = 0;
 	return xfs_btree_lookup(cur, XFS_LOOKUP_GE, stat);
 }
 
@@ -161,21 +154,17 @@ static inline bool xfs_bmap_wants_extents(struct xfs_inode *ip, int whichfork)
 }
 
 /*
- * Update the record referred to by cur to the value given
- * by [off, bno, len, state].
+ * Update the record referred to by cur to the value given by irec
  * This either works (return 0) or gets an EFSCORRUPTED error.
  */
 STATIC int
 xfs_bmbt_update(
 	struct xfs_btree_cur	*cur,
-	xfs_fileoff_t		off,
-	xfs_fsblock_t		bno,
-	xfs_filblks_t		len,
-	xfs_exntst_t		state)
+	struct xfs_bmbt_irec	*irec)
 {
 	union xfs_btree_rec	rec;
 
-	xfs_bmbt_disk_set_allf(&rec.bmbt, off, bno, len, state);
+	xfs_bmbt_disk_set_all(&rec.bmbt, irec);
 	return xfs_btree_update(cur, &rec);
 }
 
@@ -192,12 +181,8 @@ xfs_bmap_worst_indlen(
 	int		maxrecs;	/* maximum record count at this level */
 	xfs_mount_t	*mp;		/* mount structure */
 	xfs_filblks_t	rval;		/* return value */
-	xfs_filblks_t   orig_len;
 
 	mp = ip->i_mount;
-
-	/* Calculate the worst-case size of the bmbt. */
-	orig_len = len;
 	maxrecs = mp->m_bmap_dmxr[0];
 	for (level = 0, rval = 0;
 	     level < XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK);
@@ -205,20 +190,12 @@ xfs_bmap_worst_indlen(
 		len += maxrecs - 1;
 		do_div(len, maxrecs);
 		rval += len;
-		if (len == 1) {
-			rval += XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
+		if (len == 1)
+			return rval + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
 				level - 1;
-			break;
-		}
 		if (level == 0)
 			maxrecs = mp->m_bmap_dmxr[1];
 	}
-
-	/* Calculate the worst-case size of the rmapbt. */
-	if (xfs_sb_version_hasrmapbt(&mp->m_sb))
-		rval += 1 + xfs_rmapbt_calc_size(mp, orig_len) +
-				mp->m_rmap_maxlevels;
-
 	return rval;
 }
 
@@ -255,7 +232,6 @@ xfs_bmap_forkoff_reset(
 {
 	if (whichfork == XFS_ATTR_FORK &&
 	    ip->i_d.di_format != XFS_DINODE_FMT_DEV &&
-	    ip->i_d.di_format != XFS_DINODE_FMT_UUID &&
 	    ip->i_d.di_format != XFS_DINODE_FMT_BTREE) {
 		uint	dfl_forkoff = xfs_default_attroffset(ip) >> 3;
 
@@ -512,31 +488,6 @@ error_norelse:
 }
 
 /*
- * Add bmap trace insert entries for all the contents of the extent records.
- */
-void
-xfs_bmap_trace_exlist(
-	xfs_inode_t	*ip,		/* incore inode pointer */
-	xfs_extnum_t	cnt,		/* count of entries in the list */
-	int		whichfork,	/* data or attr or cow fork */
-	unsigned long	caller_ip)
-{
-	xfs_extnum_t	idx;		/* extent record index */
-	xfs_ifork_t	*ifp;		/* inode fork pointer */
-	int		state = 0;
-
-	if (whichfork == XFS_ATTR_FORK)
-		state |= BMAP_ATTRFORK;
-	else if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
-
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-	ASSERT(cnt == xfs_iext_count(ifp));
-	for (idx = 0; idx < cnt; idx++)
-		trace_xfs_extlist(ip, idx, state, caller_ip);
-}
-
-/*
  * Validate that the bmbt_irecs being returned from bmapi are valid
  * given the caller's original parameters.  Specifically check the
  * ranges of the returned irecs to ensure that they only extend beyond
@@ -670,8 +621,8 @@ xfs_bmap_btree_to_extents(
 	cbno = be64_to_cpu(*pp);
 	*logflagsp = 0;
 #ifdef DEBUG
-	if ((error = xfs_btree_check_lptr(cur, cbno, 1)))
-		return error;
+	XFS_WANT_CORRUPTED_RETURN(cur->bc_mp,
+			xfs_btree_check_lptr(cur, cbno, 1));
 #endif
 	error = xfs_btree_read_bufl(mp, tp, cbno, 0, &cbp, XFS_BMAP_BTREE_REF,
 				&xfs_bmbt_buf_ops);
@@ -716,14 +667,14 @@ xfs_bmap_extents_to_btree(
 	xfs_bmbt_rec_t		*arp;		/* child record pointer */
 	struct xfs_btree_block	*block;		/* btree root block */
 	xfs_btree_cur_t		*cur;		/* bmap btree cursor */
-	xfs_bmbt_rec_host_t	*ep;		/* extent record pointer */
 	int			error;		/* error return value */
-	xfs_extnum_t		i, cnt;		/* extent record index */
 	xfs_ifork_t		*ifp;		/* inode fork pointer */
 	xfs_bmbt_key_t		*kp;		/* root block key pointer */
 	xfs_mount_t		*mp;		/* mount structure */
-	xfs_extnum_t		nextents;	/* number of file extents */
 	xfs_bmbt_ptr_t		*pp;		/* root block address pointer */
+	struct xfs_iext_cursor	icur;
+	struct xfs_bmbt_irec	rec;
+	xfs_extnum_t		cnt = 0;
 
 	mp = ip->i_mount;
 	ASSERT(whichfork != XFS_COW_FORK);
@@ -802,15 +753,12 @@ xfs_bmap_extents_to_btree(
 				XFS_BTNUM_BMAP, 0, 0, ip->i_ino,
 				XFS_BTREE_LONG_PTRS);
 
-	arp = XFS_BMBT_REC_ADDR(mp, ablock, 1);
-	nextents =  xfs_iext_count(ifp);
-	for (cnt = i = 0; i < nextents; i++) {
-		ep = xfs_iext_get_ext(ifp, i);
-		if (!isnullstartblock(xfs_bmbt_get_startblock(ep))) {
-			arp->l0 = cpu_to_be64(ep->l0);
-			arp->l1 = cpu_to_be64(ep->l1);
-			arp++; cnt++;
-		}
+	for_each_xfs_iext(ifp, &icur, &rec) {
+		if (isnullstartblock(rec.br_startblock))
+			continue;
+		arp = XFS_BMBT_REC_ADDR(mp, ablock, 1 + cnt);
+		xfs_bmbt_disk_set_all(arp, &rec);
+		cnt++;
 	}
 	ASSERT(cnt == XFS_IFORK_NEXTENTS(ip, whichfork));
 	xfs_btree_set_numrecs(ablock, cnt);
@@ -858,6 +806,8 @@ xfs_bmap_local_to_extents_empty(
 	xfs_bmap_forkoff_reset(ip, whichfork);
 	ifp->if_flags &= ~XFS_IFINLINE;
 	ifp->if_flags |= XFS_IFEXTENTS;
+	ifp->if_u1.if_root = NULL;
+	ifp->if_height = 0;
 	XFS_IFORK_FMT_SET(ip, whichfork, XFS_DINODE_FMT_EXTENTS);
 }
 
@@ -881,6 +831,7 @@ xfs_bmap_local_to_extents(
 	xfs_alloc_arg_t	args;		/* allocation arguments */
 	xfs_buf_t	*bp;		/* buffer for extent block */
 	struct xfs_bmbt_irec rec;
+	struct xfs_iext_cursor icur;
 
 	/*
 	 * We don't want to deal with the case of keeping inode data inline yet.
@@ -898,8 +849,7 @@ xfs_bmap_local_to_extents(
 
 	flags = 0;
 	error = 0;
-	ASSERT((ifp->if_flags & (XFS_IFINLINE|XFS_IFEXTENTS|XFS_IFEXTIREC)) ==
-								XFS_IFINLINE);
+	ASSERT((ifp->if_flags & (XFS_IFINLINE|XFS_IFEXTENTS)) == XFS_IFINLINE);
 	memset(&args, 0, sizeof(args));
 	args.tp = tp;
 	args.mp = ip->i_mount;
@@ -943,15 +893,16 @@ xfs_bmap_local_to_extents(
 	xfs_bmap_local_to_extents_empty(ip, whichfork);
 	flags |= XFS_ILOG_CORE;
 
+	ifp->if_u1.if_root = NULL;
+	ifp->if_height = 0;
+
 	rec.br_startoff = 0;
 	rec.br_startblock = args.fsbno;
 	rec.br_blockcount = 1;
 	rec.br_state = XFS_EXT_NORM;
-	xfs_iext_insert(ip, 0, 1, &rec, 0);
+	xfs_iext_first(ifp, &icur);
+	xfs_iext_insert(ip, &icur, &rec, 0);
 
-	trace_xfs_bmap_post_update(ip, 0,
-			whichfork == XFS_ATTR_FORK ? BMAP_ATTRFORK : 0,
-			_THIS_IP_);
 	XFS_IFORK_NEXT_SET(ip, whichfork, 1);
 	ip->i_d.di_nblocks = 1;
 	xfs_trans_mod_dquot_byino(tp, ip,
@@ -986,7 +937,8 @@ xfs_bmap_add_attrfork_btree(
 		cur = xfs_bmbt_init_cursor(mp, tp, ip, XFS_DATA_FORK);
 		cur->bc_private.b.dfops = dfops;
 		cur->bc_private.b.firstblock = *firstblock;
-		if ((error = xfs_bmbt_lookup_ge(cur, 0, 0, 0, &stat)))
+		error = xfs_bmbt_lookup_first(cur, &stat);
+		if (error)
 			goto error0;
 		/* must be at least one entry */
 		XFS_WANT_CORRUPTED_GOTO(mp, stat == 1, error0);
@@ -1137,9 +1089,6 @@ xfs_bmap_add_attrfork(
 	case XFS_DINODE_FMT_DEV:
 		ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
 		break;
-	case XFS_DINODE_FMT_UUID:
-		ip->i_d.di_forkoff = roundup(sizeof(uuid_t), 8) >> 3;
-		break;
 	case XFS_DINODE_FMT_LOCAL:
 	case XFS_DINODE_FMT_EXTENTS:
 	case XFS_DINODE_FMT_BTREE:
@@ -1219,32 +1168,35 @@ trans_cancel:
  */
 
 /*
- * Read in the extents to if_extents.
- * All inode fields are set up by caller, we just traverse the btree
- * and copy the records in. If the file system cannot contain unwritten
- * extents, the records are checked for no "state" flags.
+ * Read in extents from a btree-format inode.
  */
-int					/* error */
-xfs_bmap_read_extents(
-	xfs_trans_t		*tp,	/* transaction pointer */
-	xfs_inode_t		*ip,	/* incore inode */
-	int			whichfork) /* data or attr fork */
+int
+xfs_iread_extents(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	int			whichfork)
 {
-	struct xfs_btree_block	*block;	/* current btree block */
-	xfs_fsblock_t		bno;	/* block # of "block" */
-	xfs_buf_t		*bp;	/* buffer for "block" */
-	int			error;	/* error return value */
-	xfs_extnum_t		i, j;	/* index into the extents list */
-	xfs_ifork_t		*ifp;	/* fork structure */
-	int			level;	/* btree level, for checking */
-	xfs_mount_t		*mp;	/* file system mount structure */
-	__be64			*pp;	/* pointer to block address */
-	/* REFERENCED */
-	xfs_extnum_t		room;	/* number of entries there's room for */
+	struct xfs_mount	*mp = ip->i_mount;
+	int			state = xfs_bmap_fork_to_state(whichfork);
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	xfs_extnum_t		nextents = XFS_IFORK_NEXTENTS(ip, whichfork);
+	struct xfs_btree_block	*block = ifp->if_broot;
+	struct xfs_iext_cursor	icur;
+	struct xfs_bmbt_irec	new;
+	xfs_fsblock_t		bno;
+	struct xfs_buf		*bp;
+	xfs_extnum_t		i, j;
+	int			level;
+	__be64			*pp;
+	int			error;
+
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
+	if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
+		XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp);
+		return -EFSCORRUPTED;
+	}
 
-	mp = ip->i_mount;
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-	block = ifp->if_broot;
 	/*
 	 * Root level must use BMAP_BROOT_PTR_ADDR macro to get ptr out.
 	 */
@@ -1261,21 +1213,23 @@ xfs_bmap_read_extents(
 		error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp,
 				XFS_BMAP_BTREE_REF, &xfs_bmbt_buf_ops);
 		if (error)
-			return error;
+			goto out;
 		block = XFS_BUF_TO_BLOCK(bp);
 		if (level == 0)
 			break;
 		pp = XFS_BMBT_PTR_ADDR(mp, block, 1, mp->m_bmap_dmxr[1]);
 		bno = be64_to_cpu(*pp);
 		XFS_WANT_CORRUPTED_GOTO(mp,
-			XFS_FSB_SANITY_CHECK(mp, bno), error0);
+			XFS_FSB_SANITY_CHECK(mp, bno), out_brelse);
 		xfs_trans_brelse(tp, bp);
 	}
+
 	/*
 	 * Here with bp and block set to the leftmost leaf node in the tree.
 	 */
-	room = xfs_iext_count(ifp);
 	i = 0;
+	xfs_iext_first(ifp, &icur);
+
 	/*
 	 * Loop over all leaf nodes.  Copy information to the extent records.
 	 */
@@ -1285,14 +1239,15 @@ xfs_bmap_read_extents(
 		xfs_extnum_t	num_recs;
 
 		num_recs = xfs_btree_get_numrecs(block);
-		if (unlikely(i + num_recs > room)) {
-			ASSERT(i + num_recs <= room);
+		if (unlikely(i + num_recs > nextents)) {
+			ASSERT(i + num_recs <= nextents);
 			xfs_warn(ip->i_mount,
 				"corrupt dinode %Lu, (btree extents).",
 				(unsigned long long) ip->i_ino);
-			XFS_CORRUPTION_ERROR("xfs_bmap_read_extents(1)",
+			XFS_CORRUPTION_ERROR(__func__,
 				XFS_ERRLEVEL_LOW, ip->i_mount, block);
-			goto error0;
+			error = -EFSCORRUPTED;
+			goto out_brelse;
 		}
 		/*
 		 * Read-ahead the next leaf block, if any.
@@ -1305,15 +1260,17 @@ xfs_bmap_read_extents(
 		 * Copy records into the extent records.
 		 */
 		frp = XFS_BMBT_REC_ADDR(mp, block, 1);
-		for (j = 0; j < num_recs; j++, i++, frp++) {
-			xfs_bmbt_rec_host_t *trp = xfs_iext_get_ext(ifp, i);
-			trp->l0 = be64_to_cpu(frp->l0);
-			trp->l1 = be64_to_cpu(frp->l1);
-			if (!xfs_bmbt_validate_extent(mp, whichfork, trp)) {
+		for (j = 0; j < num_recs; j++, frp++, i++) {
+			xfs_bmbt_disk_get_all(frp, &new);
+			if (!xfs_bmbt_validate_extent(mp, whichfork, &new)) {
 				XFS_ERROR_REPORT("xfs_bmap_read_extents(2)",
 						 XFS_ERRLEVEL_LOW, mp);
-				goto error0;
+				error = -EFSCORRUPTED;
+				goto out_brelse;
 			}
+			xfs_iext_insert(ip, &icur, &new, state);
+			trace_xfs_read_extent(ip, &icur, state, _THIS_IP_);
+			xfs_iext_next(ifp, &icur);
 		}
 		xfs_trans_brelse(tp, bp);
 		bno = nextbno;
@@ -1325,71 +1282,74 @@ xfs_bmap_read_extents(
 		error = xfs_btree_read_bufl(mp, tp, bno, 0, &bp,
 				XFS_BMAP_BTREE_REF, &xfs_bmbt_buf_ops);
 		if (error)
-			return error;
+			goto out;
 		block = XFS_BUF_TO_BLOCK(bp);
 	}
-	if (i != XFS_IFORK_NEXTENTS(ip, whichfork))
-		return -EFSCORRUPTED;
+
+	if (i != XFS_IFORK_NEXTENTS(ip, whichfork)) {
+		error = -EFSCORRUPTED;
+		goto out;
+	}
 	ASSERT(i == xfs_iext_count(ifp));
-	XFS_BMAP_TRACE_EXLIST(ip, i, whichfork);
+
+	ifp->if_flags |= XFS_IFEXTENTS;
 	return 0;
-error0:
+
+out_brelse:
 	xfs_trans_brelse(tp, bp);
-	return -EFSCORRUPTED;
+out:
+	xfs_iext_destroy(ifp);
+	return error;
 }
 
 /*
- * Returns the file-relative block number of the first unused block(s)
- * in the file with at least "len" logically contiguous blocks free.
- * This is the lowest-address hole if the file has holes, else the first block
- * past the end of file.
- * Return 0 if the file is currently local (in-inode).
+ * Returns the relative block number of the first unused block(s) in the given
+ * fork with at least "len" logically contiguous blocks free.  This is the
+ * lowest-address hole if the fork has holes, else the first block past the end
+ * of fork.  Return 0 if the fork is currently local (in-inode).
  */
 int						/* error */
 xfs_bmap_first_unused(
-	xfs_trans_t	*tp,			/* transaction pointer */
-	xfs_inode_t	*ip,			/* incore inode */
-	xfs_extlen_t	len,			/* size of hole to find */
-	xfs_fileoff_t	*first_unused,		/* unused block */
-	int		whichfork)		/* data or attr fork */
+	struct xfs_trans	*tp,		/* transaction pointer */
+	struct xfs_inode	*ip,		/* incore inode */
+	xfs_extlen_t		len,		/* size of hole to find */
+	xfs_fileoff_t		*first_unused,	/* unused block */
+	int			whichfork)	/* data or attr fork */
 {
-	int		error;			/* error return value */
-	int		idx;			/* extent record index */
-	xfs_ifork_t	*ifp;			/* inode fork pointer */
-	xfs_fileoff_t	lastaddr;		/* last block number seen */
-	xfs_fileoff_t	lowest;			/* lowest useful block */
-	xfs_fileoff_t	max;			/* starting useful block */
-	xfs_extnum_t	nextents;		/* number of extent entries */
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	struct xfs_bmbt_irec	got;
+	struct xfs_iext_cursor	icur;
+	xfs_fileoff_t		lastaddr = 0;
+	xfs_fileoff_t		lowest, max;
+	int			error;
 
 	ASSERT(XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_BTREE ||
 	       XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS ||
 	       XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL);
+
 	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
 		*first_unused = 0;
 		return 0;
 	}
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-	if (!(ifp->if_flags & XFS_IFEXTENTS) &&
-	    (error = xfs_iread_extents(tp, ip, whichfork)))
-		return error;
-	lowest = *first_unused;
-	nextents = xfs_iext_count(ifp);
-	for (idx = 0, lastaddr = 0, max = lowest; idx < nextents; idx++) {
-		struct xfs_bmbt_irec got;
 
-		xfs_iext_get_extent(ifp, idx, &got);
+	if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+		error = xfs_iread_extents(tp, ip, whichfork);
+		if (error)
+			return error;
+	}
 
+	lowest = max = *first_unused;
+	for_each_xfs_iext(ifp, &icur, &got) {
 		/*
 		 * See if the hole before this extent will work.
 		 */
 		if (got.br_startoff >= lowest + len &&
-		    got.br_startoff - max >= len) {
-			*first_unused = max;
-			return 0;
-		}
+		    got.br_startoff - max >= len)
+			break;
 		lastaddr = got.br_startoff + got.br_blockcount;
 		max = XFS_FILEOFF_MAX(lastaddr, lowest);
 	}
+
 	*first_unused = max;
 	return 0;
 }
@@ -1409,7 +1369,7 @@ xfs_bmap_last_before(
 {
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
 	struct xfs_bmbt_irec	got;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 	int			error;
 
 	switch (XFS_IFORK_FORMAT(ip, whichfork)) {
@@ -1429,17 +1389,8 @@ xfs_bmap_last_before(
 			return error;
 	}
 
-	if (xfs_iext_lookup_extent(ip, ifp, *last_block - 1, &idx, &got)) {
-		if (got.br_startoff <= *last_block - 1)
-			return 0;
-	}
-
-	if (xfs_iext_get_extent(ifp, idx - 1, &got)) {
-		*last_block = got.br_startoff + got.br_blockcount;
-		return 0;
-	}
-
-	*last_block = 0;
+	if (!xfs_iext_lookup_extent_before(ip, ifp, last_block, &icur, &got))
+		*last_block = 0;
 	return 0;
 }
 
@@ -1452,8 +1403,8 @@ xfs_bmap_last_extent(
 	int			*is_empty)
 {
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	struct xfs_iext_cursor	icur;
 	int			error;
-	int			nextents;
 
 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {
 		error = xfs_iread_extents(tp, ip, whichfork);
@@ -1461,14 +1412,11 @@ xfs_bmap_last_extent(
 			return error;
 	}
 
-	nextents = xfs_iext_count(ifp);
-	if (nextents == 0) {
+	xfs_iext_last(ifp, &icur);
+	if (!xfs_iext_get_extent(ifp, &icur, rec))
 		*is_empty = 1;
-		return 0;
-	}
-
-	xfs_bmbt_get_all(xfs_iext_get_ext(ifp, nextents - 1), rec);
-	*is_empty = 0;
+	else
+		*is_empty = 0;
 	return 0;
 }
 
@@ -1490,14 +1438,14 @@ xfs_bmap_isaeof(
 	int			is_empty;
 	int			error;
 
-	bma->aeof = 0;
+	bma->aeof = false;
 	error = xfs_bmap_last_extent(NULL, bma->ip, whichfork, &rec,
 				     &is_empty);
 	if (error)
 		return error;
 
 	if (is_empty) {
-		bma->aeof = 1;
+		bma->aeof = true;
 		return 0;
 	}
 
@@ -1553,10 +1501,10 @@ xfs_bmap_one_block(
 	xfs_inode_t	*ip,		/* incore inode */
 	int		whichfork)	/* data or attr fork */
 {
-	xfs_bmbt_rec_host_t *ep;	/* ptr to fork's extent */
 	xfs_ifork_t	*ifp;		/* inode fork pointer */
 	int		rval;		/* return value */
 	xfs_bmbt_irec_t	s;		/* internal version of extent */
+	struct xfs_iext_cursor icur;
 
 #ifndef DEBUG
 	if (whichfork == XFS_DATA_FORK)
@@ -1568,8 +1516,8 @@ xfs_bmap_one_block(
 		return 0;
 	ifp = XFS_IFORK_PTR(ip, whichfork);
 	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
-	ep = xfs_iext_get_ext(ifp, 0);
-	xfs_bmbt_get_all(ep, &s);
+	xfs_iext_first(ifp, &icur);
+	xfs_iext_get_extent(ifp, &icur, &s);
 	rval = s.br_startoff == 0 && s.br_blockcount == 1;
 	if (rval && whichfork == XFS_DATA_FORK)
 		ASSERT(XFS_ISIZE(ip) == ip->i_mount->m_sb.sb_blocksize);
@@ -1589,8 +1537,6 @@ xfs_bmap_add_extent_delay_real(
 	int			whichfork)
 {
 	struct xfs_bmbt_irec	*new = &bma->got;
-	int			diff;	/* temp value */
-	xfs_bmbt_rec_host_t	*ep;	/* extent entry for idx */
 	int			error;	/* error return value */
 	int			i;	/* temp state */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
@@ -1598,14 +1544,14 @@ xfs_bmap_add_extent_delay_real(
 	xfs_bmbt_irec_t		r[3];	/* neighbor extent entries */
 					/* left is 0, right is 1, prev is 2 */
 	int			rval=0;	/* return value (logging flags) */
-	int			state = 0;/* state bits, accessed thru macros */
+	int			state = xfs_bmap_fork_to_state(whichfork);
 	xfs_filblks_t		da_new; /* new count del alloc blocks used */
 	xfs_filblks_t		da_old; /* old count del alloc blocks used */
 	xfs_filblks_t		temp=0;	/* value for da_new calculations */
-	xfs_filblks_t		temp2=0;/* value for da_new calculations */
 	int			tmp_rval;	/* partial logging flags */
 	struct xfs_mount	*mp;
 	xfs_extnum_t		*nextents;
+	struct xfs_bmbt_irec	old;
 
 	mp = bma->ip->i_mount;
 	ifp = XFS_IFORK_PTR(bma->ip, whichfork);
@@ -1613,8 +1559,6 @@ xfs_bmap_add_extent_delay_real(
 	nextents = (whichfork == XFS_COW_FORK ? &bma->ip->i_cnextents :
 						&bma->ip->i_d.di_nextents);
 
-	ASSERT(bma->idx >= 0);
-	ASSERT(bma->idx <= xfs_iext_count(ifp));
 	ASSERT(!isnullstartblock(new->br_startblock));
 	ASSERT(!bma->cur ||
 	       (bma->cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL));
@@ -1625,15 +1569,12 @@ xfs_bmap_add_extent_delay_real(
 #define	RIGHT		r[1]
 #define	PREV		r[2]
 
-	if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
-
 	/*
 	 * Set up a bunch of variables to make the tests simpler.
 	 */
-	ep = xfs_iext_get_ext(ifp, bma->idx);
-	xfs_bmbt_get_all(ep, &PREV);
+	xfs_iext_get_extent(ifp, &bma->icur, &PREV);
 	new_endoff = new->br_startoff + new->br_blockcount;
+	ASSERT(isnullstartblock(PREV.br_startblock));
 	ASSERT(PREV.br_startoff <= new->br_startoff);
 	ASSERT(PREV.br_startoff + PREV.br_blockcount >= new_endoff);
 
@@ -1653,10 +1594,8 @@ xfs_bmap_add_extent_delay_real(
 	 * Check and set flags if this segment has a left neighbor.
 	 * Don't set contiguous if the combined extent would be too large.
 	 */
-	if (bma->idx > 0) {
+	if (xfs_iext_peek_prev_extent(ifp, &bma->icur, &LEFT)) {
 		state |= BMAP_LEFT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx - 1), &LEFT);
-
 		if (isnullstartblock(LEFT.br_startblock))
 			state |= BMAP_LEFT_DELAY;
 	}
@@ -1673,10 +1612,8 @@ xfs_bmap_add_extent_delay_real(
 	 * Don't set contiguous if the combined extent would be too large.
 	 * Also check for all-three-contiguous being too large.
 	 */
-	if (bma->idx < xfs_iext_count(ifp) - 1) {
+	if (xfs_iext_peek_next_extent(ifp, &bma->icur, &RIGHT)) {
 		state |= BMAP_RIGHT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx + 1), &RIGHT);
-
 		if (isnullstartblock(RIGHT.br_startblock))
 			state |= BMAP_RIGHT_DELAY;
 	}
@@ -1706,22 +1643,19 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in all of a previously delayed allocation extent.
 		 * The left and right neighbors are both contiguous with new.
 		 */
-		bma->idx--;
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, bma->idx),
-			LEFT.br_blockcount + PREV.br_blockcount +
-			RIGHT.br_blockcount);
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
-
-		xfs_iext_remove(bma->ip, bma->idx + 1, 2, state);
+		LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;
+
+		xfs_iext_remove(bma->ip, &bma->icur, state);
+		xfs_iext_remove(bma->ip, &bma->icur, state);
+		xfs_iext_prev(ifp, &bma->icur);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);
 		(*nextents)--;
+
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(bma->cur, RIGHT.br_startoff,
-					RIGHT.br_startblock,
-					RIGHT.br_blockcount, &i);
+			error = xfs_bmbt_lookup_eq(bma->cur, &RIGHT, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@@ -1733,11 +1667,7 @@ xfs_bmap_add_extent_delay_real(
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(bma->cur, LEFT.br_startoff,
-					LEFT.br_startblock,
-					LEFT.br_blockcount +
-					PREV.br_blockcount +
-					RIGHT.br_blockcount, LEFT.br_state);
+			error = xfs_bmbt_update(bma->cur, &LEFT);
 			if (error)
 				goto done;
 		}
@@ -1748,28 +1678,22 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in all of a previously delayed allocation extent.
 		 * The left neighbor is contiguous, the right is not.
 		 */
-		bma->idx--;
+		old = LEFT;
+		LEFT.br_blockcount += PREV.br_blockcount;
 
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, bma->idx),
-			LEFT.br_blockcount + PREV.br_blockcount);
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
+		xfs_iext_remove(bma->ip, &bma->icur, state);
+		xfs_iext_prev(ifp, &bma->icur);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);
 
-		xfs_iext_remove(bma->ip, bma->idx + 1, 1, state);
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			error = xfs_bmbt_lookup_eq(bma->cur, LEFT.br_startoff,
-					LEFT.br_startblock, LEFT.br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(bma->cur, LEFT.br_startoff,
-					LEFT.br_startblock,
-					LEFT.br_blockcount +
-					PREV.br_blockcount, LEFT.br_state);
+			error = xfs_bmbt_update(bma->cur, &LEFT);
 			if (error)
 				goto done;
 		}
@@ -1780,27 +1704,23 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in all of a previously delayed allocation extent.
 		 * The right neighbor is contiguous, the left is not.
 		 */
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_startblock(ep, new->br_startblock);
-		xfs_bmbt_set_blockcount(ep,
-			PREV.br_blockcount + RIGHT.br_blockcount);
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
+		PREV.br_startblock = new->br_startblock;
+		PREV.br_blockcount += RIGHT.br_blockcount;
+
+		xfs_iext_next(ifp, &bma->icur);
+		xfs_iext_remove(bma->ip, &bma->icur, state);
+		xfs_iext_prev(ifp, &bma->icur);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);
 
-		xfs_iext_remove(bma->ip, bma->idx + 1, 1, state);
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			error = xfs_bmbt_lookup_eq(bma->cur, RIGHT.br_startoff,
-					RIGHT.br_startblock,
-					RIGHT.br_blockcount, &i);
+			error = xfs_bmbt_lookup_eq(bma->cur, &RIGHT, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(bma->cur, PREV.br_startoff,
-					new->br_startblock,
-					PREV.br_blockcount +
-					RIGHT.br_blockcount, PREV.br_state);
+			error = xfs_bmbt_update(bma->cur, &PREV);
 			if (error)
 				goto done;
 		}
@@ -1812,23 +1732,19 @@ xfs_bmap_add_extent_delay_real(
 		 * Neither the left nor right neighbors are contiguous with
 		 * the new one.
 		 */
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_startblock(ep, new->br_startblock);
-		xfs_bmbt_set_state(ep, new->br_state);
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
+		PREV.br_startblock = new->br_startblock;
+		PREV.br_state = new->br_state;
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);
 
 		(*nextents)++;
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			error = xfs_btree_insert(bma->cur, &i);
 			if (error)
 				goto done;
@@ -1841,40 +1757,33 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in the first part of a previous delayed allocation.
 		 * The left neighbor is contiguous.
 		 */
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx - 1, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, bma->idx - 1),
-			LEFT.br_blockcount + new->br_blockcount);
-		xfs_bmbt_set_startoff(ep,
-			PREV.br_startoff + new->br_blockcount);
-		trace_xfs_bmap_post_update(bma->ip, bma->idx - 1, state, _THIS_IP_);
-
+		old = LEFT;
 		temp = PREV.br_blockcount - new->br_blockcount;
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep, temp);
+		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),
+				startblockval(PREV.br_startblock));
+
+		LEFT.br_blockcount += new->br_blockcount;
+
+		PREV.br_blockcount = temp;
+		PREV.br_startoff += new->br_blockcount;
+		PREV.br_startblock = nullstartblock(da_new);
+
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);
+		xfs_iext_prev(ifp, &bma->icur);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &LEFT);
+
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			error = xfs_bmbt_lookup_eq(bma->cur, LEFT.br_startoff,
-					LEFT.br_startblock, LEFT.br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(bma->cur, LEFT.br_startoff,
-					LEFT.br_startblock,
-					LEFT.br_blockcount +
-					new->br_blockcount,
-					LEFT.br_state);
+			error = xfs_bmbt_update(bma->cur, &LEFT);
 			if (error)
 				goto done;
 		}
-		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),
-			startblockval(PREV.br_startblock));
-		xfs_bmbt_set_startblock(ep, nullstartblock(da_new));
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
-
-		bma->idx--;
 		break;
 
 	case BMAP_LEFT_FILLING:
@@ -1882,23 +1791,16 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in the first part of a previous delayed allocation.
 		 * The left neighbor is not contiguous.
 		 */
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_startoff(ep, new_endoff);
-		temp = PREV.br_blockcount - new->br_blockcount;
-		xfs_bmbt_set_blockcount(ep, temp);
-		xfs_iext_insert(bma->ip, bma->idx, 1, new, state);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, new);
 		(*nextents)++;
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			error = xfs_btree_insert(bma->cur, &i);
 			if (error)
 				goto done;
@@ -1913,12 +1815,18 @@ xfs_bmap_add_extent_delay_real(
 			if (error)
 				goto done;
 		}
+
+		temp = PREV.br_blockcount - new->br_blockcount;
 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),
 			startblockval(PREV.br_startblock) -
 			(bma->cur ? bma->cur->bc_private.b.allocated : 0));
-		ep = xfs_iext_get_ext(ifp, bma->idx + 1);
-		xfs_bmbt_set_startblock(ep, nullstartblock(da_new));
-		trace_xfs_bmap_post_update(bma->ip, bma->idx + 1, state, _THIS_IP_);
+
+		PREV.br_startoff = new_endoff;
+		PREV.br_blockcount = temp;
+		PREV.br_startblock = nullstartblock(da_new);
+		xfs_iext_next(ifp, &bma->icur);
+		xfs_iext_insert(bma->ip, &bma->icur, &PREV, state);
+		xfs_iext_prev(ifp, &bma->icur);
 		break;
 
 	case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
@@ -1926,40 +1834,34 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in the last part of a previous delayed allocation.
 		 * The right neighbor is contiguous with the new allocation.
 		 */
-		temp = PREV.br_blockcount - new->br_blockcount;
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx + 1, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep, temp);
-		xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, bma->idx + 1),
-			new->br_startoff, new->br_startblock,
-			new->br_blockcount + RIGHT.br_blockcount,
-			RIGHT.br_state);
-		trace_xfs_bmap_post_update(bma->ip, bma->idx + 1, state, _THIS_IP_);
+		old = RIGHT;
+		RIGHT.br_startoff = new->br_startoff;
+		RIGHT.br_startblock = new->br_startblock;
+		RIGHT.br_blockcount += new->br_blockcount;
+
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			error = xfs_bmbt_lookup_eq(bma->cur, RIGHT.br_startoff,
-					RIGHT.br_startblock,
-					RIGHT.br_blockcount, &i);
+			error = xfs_bmbt_lookup_eq(bma->cur, &old, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(bma->cur, new->br_startoff,
-					new->br_startblock,
-					new->br_blockcount +
-					RIGHT.br_blockcount,
-					RIGHT.br_state);
+			error = xfs_bmbt_update(bma->cur, &RIGHT);
 			if (error)
 				goto done;
 		}
 
+		temp = PREV.br_blockcount - new->br_blockcount;
 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),
 			startblockval(PREV.br_startblock));
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_startblock(ep, nullstartblock(da_new));
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
 
-		bma->idx++;
+		PREV.br_blockcount = temp;
+		PREV.br_startblock = nullstartblock(da_new);
+
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);
+		xfs_iext_next(ifp, &bma->icur);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &RIGHT);
 		break;
 
 	case BMAP_RIGHT_FILLING:
@@ -1967,22 +1869,16 @@ xfs_bmap_add_extent_delay_real(
 		 * Filling in the last part of a previous delayed allocation.
 		 * The right neighbor is not contiguous.
 		 */
-		temp = PREV.br_blockcount - new->br_blockcount;
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep, temp);
-		xfs_iext_insert(bma->ip, bma->idx + 1, 1, new, state);
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, new);
 		(*nextents)++;
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			error = xfs_btree_insert(bma->cur, &i);
 			if (error)
 				goto done;
@@ -1997,14 +1893,16 @@ xfs_bmap_add_extent_delay_real(
 			if (error)
 				goto done;
 		}
+
+		temp = PREV.br_blockcount - new->br_blockcount;
 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(bma->ip, temp),
 			startblockval(PREV.br_startblock) -
 			(bma->cur ? bma->cur->bc_private.b.allocated : 0));
-		ep = xfs_iext_get_ext(ifp, bma->idx);
-		xfs_bmbt_set_startblock(ep, nullstartblock(da_new));
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
 
-		bma->idx++;
+		PREV.br_startblock = nullstartblock(da_new);
+		PREV.br_blockcount = temp;
+		xfs_iext_insert(bma->ip, &bma->icur, &PREV, state);
+		xfs_iext_next(ifp, &bma->icur);
 		break;
 
 	case 0:
@@ -2028,30 +1926,40 @@ xfs_bmap_add_extent_delay_real(
 		 *  PREV @ idx          LEFT              RIGHT
 		 *                      inserted at idx + 1
 		 */
-		temp = new->br_startoff - PREV.br_startoff;
-		temp2 = PREV.br_startoff + PREV.br_blockcount - new_endoff;
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx, 0, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep, temp);	/* truncate PREV */
+		old = PREV;
+
+		/* LEFT is the new middle */
 		LEFT = *new;
+
+		/* RIGHT is the new right */
 		RIGHT.br_state = PREV.br_state;
-		RIGHT.br_startblock = nullstartblock(
-				(int)xfs_bmap_worst_indlen(bma->ip, temp2));
 		RIGHT.br_startoff = new_endoff;
-		RIGHT.br_blockcount = temp2;
-		/* insert LEFT (r[0]) and RIGHT (r[1]) at the same time */
-		xfs_iext_insert(bma->ip, bma->idx + 1, 2, &LEFT, state);
+		RIGHT.br_blockcount =
+			PREV.br_startoff + PREV.br_blockcount - new_endoff;
+		RIGHT.br_startblock =
+			nullstartblock(xfs_bmap_worst_indlen(bma->ip,
+					RIGHT.br_blockcount));
+
+		/* truncate PREV */
+		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;
+		PREV.br_startblock =
+			nullstartblock(xfs_bmap_worst_indlen(bma->ip,
+					PREV.br_blockcount));
+		xfs_iext_update_extent(bma->ip, state, &bma->icur, &PREV);
+
+		xfs_iext_next(ifp, &bma->icur);
+		xfs_iext_insert(bma->ip, &bma->icur, &RIGHT, state);
+		xfs_iext_insert(bma->ip, &bma->icur, &LEFT, state);
 		(*nextents)++;
+
 		if (bma->cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(bma->cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(bma->cur, new, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			bma->cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			error = xfs_btree_insert(bma->cur, &i);
 			if (error)
 				goto done;
@@ -2066,30 +1974,9 @@ xfs_bmap_add_extent_delay_real(
 			if (error)
 				goto done;
 		}
-		temp = xfs_bmap_worst_indlen(bma->ip, temp);
-		temp2 = xfs_bmap_worst_indlen(bma->ip, temp2);
-		diff = (int)(temp + temp2 -
-			     (startblockval(PREV.br_startblock) -
-			      (bma->cur ?
-			       bma->cur->bc_private.b.allocated : 0)));
-		if (diff > 0) {
-			error = xfs_mod_fdblocks(bma->ip->i_mount,
-						 -((int64_t)diff), false);
-			ASSERT(!error);
-			if (error)
-				goto done;
-		}
 
-		ep = xfs_iext_get_ext(ifp, bma->idx);
-		xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
-		trace_xfs_bmap_post_update(bma->ip, bma->idx, state, _THIS_IP_);
-		trace_xfs_bmap_pre_update(bma->ip, bma->idx + 2, state, _THIS_IP_);
-		xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, bma->idx + 2),
-			nullstartblock((int)temp2));
-		trace_xfs_bmap_post_update(bma->ip, bma->idx + 2, state, _THIS_IP_);
-
-		bma->idx++;
-		da_new = temp + temp2;
+		da_new = startblockval(PREV.br_startblock) +
+			 startblockval(RIGHT.br_startblock);
 		break;
 
 	case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
@@ -2123,19 +2010,17 @@ xfs_bmap_add_extent_delay_real(
 			goto done;
 	}
 
-	/* adjust for changes in reserved delayed indirect blocks */
-	if (da_old || da_new) {
-		temp = da_new;
-		if (bma->cur)
-			temp += bma->cur->bc_private.b.allocated;
-		if (temp < da_old)
-			xfs_mod_fdblocks(bma->ip->i_mount,
-					(int64_t)(da_old - temp), false);
+	if (bma->cur) {
+		da_new += bma->cur->bc_private.b.allocated;
+		bma->cur->bc_private.b.allocated = 0;
 	}
 
-	/* clear out the allocated field, done with it now in any case. */
-	if (bma->cur)
-		bma->cur->bc_private.b.allocated = 0;
+	/* adjust for changes in reserved delayed indirect blocks */
+	if (da_new != da_old) {
+		ASSERT(state == 0 || da_new < da_old);
+		error = xfs_mod_fdblocks(mp, (int64_t)(da_old - da_new),
+				false);
+	}
 
 	xfs_bmap_check_leaf_extents(bma->cur, bma->ip, whichfork);
 done:
@@ -2155,7 +2040,7 @@ xfs_bmap_add_extent_unwritten_real(
 	struct xfs_trans	*tp,
 	xfs_inode_t		*ip,	/* incore inode pointer */
 	int			whichfork,
-	xfs_extnum_t		*idx,	/* extent number to update/insert */
+	struct xfs_iext_cursor	*icur,
 	xfs_btree_cur_t		**curp,	/* if *curp is null, not a btree */
 	xfs_bmbt_irec_t		*new,	/* new data to add to file extents */
 	xfs_fsblock_t		*first,	/* pointer to firstblock variable */
@@ -2163,28 +2048,22 @@ xfs_bmap_add_extent_unwritten_real(
 	int			*logflagsp) /* inode logging flags */
 {
 	xfs_btree_cur_t		*cur;	/* btree cursor */
-	xfs_bmbt_rec_host_t	*ep;	/* extent entry for idx */
 	int			error;	/* error return value */
 	int			i;	/* temp state */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
 	xfs_fileoff_t		new_endoff;	/* end offset of new entry */
-	xfs_exntst_t		newext;	/* new extent state */
-	xfs_exntst_t		oldext;	/* old extent state */
 	xfs_bmbt_irec_t		r[3];	/* neighbor extent entries */
 					/* left is 0, right is 1, prev is 2 */
 	int			rval=0;	/* return value (logging flags) */
-	int			state = 0;/* state bits, accessed thru macros */
+	int			state = xfs_bmap_fork_to_state(whichfork);
 	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_bmbt_irec	old;
 
 	*logflagsp = 0;
 
 	cur = *curp;
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
 
-	ASSERT(*idx >= 0);
-	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(!isnullstartblock(new->br_startblock));
 
 	XFS_STATS_INC(mp, xs_add_exlist);
@@ -2197,12 +2076,8 @@ xfs_bmap_add_extent_unwritten_real(
 	 * Set up a bunch of variables to make the tests simpler.
 	 */
 	error = 0;
-	ep = xfs_iext_get_ext(ifp, *idx);
-	xfs_bmbt_get_all(ep, &PREV);
-	newext = new->br_state;
-	oldext = (newext == XFS_EXT_UNWRITTEN) ?
-		XFS_EXT_NORM : XFS_EXT_UNWRITTEN;
-	ASSERT(PREV.br_state == oldext);
+	xfs_iext_get_extent(ifp, icur, &PREV);
+	ASSERT(new->br_state != PREV.br_state);
 	new_endoff = new->br_startoff + new->br_blockcount;
 	ASSERT(PREV.br_startoff <= new->br_startoff);
 	ASSERT(PREV.br_startoff + PREV.br_blockcount >= new_endoff);
@@ -2220,10 +2095,8 @@ xfs_bmap_add_extent_unwritten_real(
 	 * Check and set flags if this segment has a left neighbor.
 	 * Don't set contiguous if the combined extent would be too large.
 	 */
-	if (*idx > 0) {
+	if (xfs_iext_peek_prev_extent(ifp, icur, &LEFT)) {
 		state |= BMAP_LEFT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx - 1), &LEFT);
-
 		if (isnullstartblock(LEFT.br_startblock))
 			state |= BMAP_LEFT_DELAY;
 	}
@@ -2231,7 +2104,7 @@ xfs_bmap_add_extent_unwritten_real(
 	if ((state & BMAP_LEFT_VALID) && !(state & BMAP_LEFT_DELAY) &&
 	    LEFT.br_startoff + LEFT.br_blockcount == new->br_startoff &&
 	    LEFT.br_startblock + LEFT.br_blockcount == new->br_startblock &&
-	    LEFT.br_state == newext &&
+	    LEFT.br_state == new->br_state &&
 	    LEFT.br_blockcount + new->br_blockcount <= MAXEXTLEN)
 		state |= BMAP_LEFT_CONTIG;
 
@@ -2240,9 +2113,8 @@ xfs_bmap_add_extent_unwritten_real(
 	 * Don't set contiguous if the combined extent would be too large.
 	 * Also check for all-three-contiguous being too large.
 	 */
-	if (*idx < xfs_iext_count(ifp) - 1) {
+	if (xfs_iext_peek_next_extent(ifp, icur, &RIGHT)) {
 		state |= BMAP_RIGHT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx + 1), &RIGHT);
 		if (isnullstartblock(RIGHT.br_startblock))
 			state |= BMAP_RIGHT_DELAY;
 	}
@@ -2250,7 +2122,7 @@ xfs_bmap_add_extent_unwritten_real(
 	if ((state & BMAP_RIGHT_VALID) && !(state & BMAP_RIGHT_DELAY) &&
 	    new_endoff == RIGHT.br_startoff &&
 	    new->br_startblock + new->br_blockcount == RIGHT.br_startblock &&
-	    newext == RIGHT.br_state &&
+	    new->br_state == RIGHT.br_state &&
 	    new->br_blockcount + RIGHT.br_blockcount <= MAXEXTLEN &&
 	    ((state & (BMAP_LEFT_CONTIG | BMAP_LEFT_FILLING |
 		       BMAP_RIGHT_FILLING)) !=
@@ -2271,24 +2143,20 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting all of a previous oldext extent to newext.
 		 * The left and right neighbors are both contiguous with new.
 		 */
-		--*idx;
+		LEFT.br_blockcount += PREV.br_blockcount + RIGHT.br_blockcount;
 
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx),
-			LEFT.br_blockcount + PREV.br_blockcount +
-			RIGHT.br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-
-		xfs_iext_remove(ip, *idx + 1, 2, state);
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &LEFT);
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 				XFS_IFORK_NEXTENTS(ip, whichfork) - 2);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
-					RIGHT.br_startblock,
-					RIGHT.br_blockcount, &i)))
+			error = xfs_bmbt_lookup_eq(cur, &RIGHT, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
 			if ((error = xfs_btree_delete(cur, &i)))
@@ -2303,10 +2171,8 @@ xfs_bmap_add_extent_unwritten_real(
 			if ((error = xfs_btree_decrement(cur, 0, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
-				LEFT.br_startblock,
-				LEFT.br_blockcount + PREV.br_blockcount +
-				RIGHT.br_blockcount, LEFT.br_state)))
+			error = xfs_bmbt_update(cur, &LEFT);
+			if (error)
 				goto done;
 		}
 		break;
@@ -2316,23 +2182,19 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting all of a previous oldext extent to newext.
 		 * The left neighbor is contiguous, the right is not.
 		 */
-		--*idx;
-
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx),
-			LEFT.br_blockcount + PREV.br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		LEFT.br_blockcount += PREV.br_blockcount;
 
-		xfs_iext_remove(ip, *idx + 1, 1, state);
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &LEFT);
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 				XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
-					PREV.br_startblock, PREV.br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, &PREV, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
 			if ((error = xfs_btree_delete(cur, &i)))
@@ -2341,10 +2203,8 @@ xfs_bmap_add_extent_unwritten_real(
 			if ((error = xfs_btree_decrement(cur, 0, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur, LEFT.br_startoff,
-				LEFT.br_startblock,
-				LEFT.br_blockcount + PREV.br_blockcount,
-				LEFT.br_state)))
+			error = xfs_bmbt_update(cur, &LEFT);
+			if (error)
 				goto done;
 		}
 		break;
@@ -2354,21 +2214,22 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting all of a previous oldext extent to newext.
 		 * The right neighbor is contiguous, the left is not.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep,
-			PREV.br_blockcount + RIGHT.br_blockcount);
-		xfs_bmbt_set_state(ep, newext);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-		xfs_iext_remove(ip, *idx + 1, 1, state);
+		PREV.br_blockcount += RIGHT.br_blockcount;
+		PREV.br_state = new->br_state;
+
+		xfs_iext_next(ifp, icur);
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &PREV);
+
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 				XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			if ((error = xfs_bmbt_lookup_eq(cur, RIGHT.br_startoff,
-					RIGHT.br_startblock,
-					RIGHT.br_blockcount, &i)))
+			error = xfs_bmbt_lookup_eq(cur, &RIGHT, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
 			if ((error = xfs_btree_delete(cur, &i)))
@@ -2377,10 +2238,8 @@ xfs_bmap_add_extent_unwritten_real(
 			if ((error = xfs_btree_decrement(cur, 0, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur, new->br_startoff,
-				new->br_startblock,
-				new->br_blockcount + RIGHT.br_blockcount,
-				newext)))
+			error = xfs_bmbt_update(cur, &PREV);
+			if (error)
 				goto done;
 		}
 		break;
@@ -2391,22 +2250,19 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Neither the left nor right neighbors are contiguous with
 		 * the new one.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_state(ep, newext);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		PREV.br_state = new->br_state;
+		xfs_iext_update_extent(ip, state, icur, &PREV);
 
 		if (cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, new, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur, new->br_startoff,
-				new->br_startblock, new->br_blockcount,
-				newext)))
+			error = xfs_bmbt_update(cur, &PREV);
+			if (error)
 				goto done;
 		}
 		break;
@@ -2416,43 +2272,32 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting the first part of a previous oldext extent to newext.
 		 * The left neighbor is contiguous.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx - 1, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx - 1),
-			LEFT.br_blockcount + new->br_blockcount);
-		xfs_bmbt_set_startoff(ep,
-			PREV.br_startoff + new->br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx - 1, state, _THIS_IP_);
-
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_startblock(ep,
-			new->br_startblock + new->br_blockcount);
-		xfs_bmbt_set_blockcount(ep,
-			PREV.br_blockcount - new->br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-
-		--*idx;
+		LEFT.br_blockcount += new->br_blockcount;
+
+		old = PREV;
+		PREV.br_startoff += new->br_blockcount;
+		PREV.br_startblock += new->br_blockcount;
+		PREV.br_blockcount -= new->br_blockcount;
+
+		xfs_iext_update_extent(ip, state, icur, &PREV);
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &LEFT);
 
 		if (cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
-					PREV.br_startblock, PREV.br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur,
-				PREV.br_startoff + new->br_blockcount,
-				PREV.br_startblock + new->br_blockcount,
-				PREV.br_blockcount - new->br_blockcount,
-				oldext)))
+			error = xfs_bmbt_update(cur, &PREV);
+			if (error)
 				goto done;
-			if ((error = xfs_btree_decrement(cur, 0, &i)))
+			error = xfs_btree_decrement(cur, 0, &i);
+			if (error)
 				goto done;
-			error = xfs_bmbt_update(cur, LEFT.br_startoff,
-				LEFT.br_startblock,
-				LEFT.br_blockcount + new->br_blockcount,
-				LEFT.br_state);
+			error = xfs_bmbt_update(cur, &LEFT);
 			if (error)
 				goto done;
 		}
@@ -2463,32 +2308,25 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting the first part of a previous oldext extent to newext.
 		 * The left neighbor is not contiguous.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		ASSERT(ep && xfs_bmbt_get_state(ep) == oldext);
-		xfs_bmbt_set_startoff(ep, new_endoff);
-		xfs_bmbt_set_blockcount(ep,
-			PREV.br_blockcount - new->br_blockcount);
-		xfs_bmbt_set_startblock(ep,
-			new->br_startblock + new->br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-
-		xfs_iext_insert(ip, *idx, 1, new, state);
+		old = PREV;
+		PREV.br_startoff += new->br_blockcount;
+		PREV.br_startblock += new->br_blockcount;
+		PREV.br_blockcount -= new->br_blockcount;
+
+		xfs_iext_update_extent(ip, state, icur, &PREV);
+		xfs_iext_insert(ip, icur, new, state);
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 				XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
 		if (cur == NULL)
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
-					PREV.br_startblock, PREV.br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur,
-				PREV.br_startoff + new->br_blockcount,
-				PREV.br_startblock + new->br_blockcount,
-				PREV.br_blockcount - new->br_blockcount,
-				oldext)))
+			error = xfs_bmbt_update(cur, &PREV);
+			if (error)
 				goto done;
 			cur->bc_rec.b = *new;
 			if ((error = xfs_btree_insert(cur, &i)))
@@ -2502,39 +2340,33 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting the last part of a previous oldext extent to newext.
 		 * The right neighbor is contiguous with the new allocation.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep,
-			PREV.br_blockcount - new->br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		old = PREV;
+		PREV.br_blockcount -= new->br_blockcount;
 
-		++*idx;
+		RIGHT.br_startoff = new->br_startoff;
+		RIGHT.br_startblock = new->br_startblock;
+		RIGHT.br_blockcount += new->br_blockcount;
 
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, *idx),
-			new->br_startoff, new->br_startblock,
-			new->br_blockcount + RIGHT.br_blockcount, newext);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		xfs_iext_update_extent(ip, state, icur, &PREV);
+		xfs_iext_next(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &RIGHT);
 
 		if (cur == NULL)
 			rval = XFS_ILOG_DEXT;
 		else {
 			rval = 0;
-			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
-					PREV.br_startblock,
-					PREV.br_blockcount, &i)))
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
-				PREV.br_startblock,
-				PREV.br_blockcount - new->br_blockcount,
-				oldext)))
+			error = xfs_bmbt_update(cur, &PREV);
+			if (error)
 				goto done;
-			if ((error = xfs_btree_increment(cur, 0, &i)))
+			error = xfs_btree_increment(cur, 0, &i);
+			if (error)
 				goto done;
-			if ((error = xfs_bmbt_update(cur, new->br_startoff,
-				new->br_startblock,
-				new->br_blockcount + RIGHT.br_blockcount,
-				newext)))
+			error = xfs_bmbt_update(cur, &RIGHT);
+			if (error)
 				goto done;
 		}
 		break;
@@ -2544,13 +2376,12 @@ xfs_bmap_add_extent_unwritten_real(
 		 * Setting the last part of a previous oldext extent to newext.
 		 * The right neighbor is not contiguous.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep,
-			PREV.br_blockcount - new->br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		old = PREV;
+		PREV.br_blockcount -= new->br_blockcount;
 
-		++*idx;
-		xfs_iext_insert(ip, *idx, 1, new, state);
+		xfs_iext_update_extent(ip, state, icur, &PREV);
+		xfs_iext_next(ifp, icur);
+		xfs_iext_insert(ip, icur, new, state);
 
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 				XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
@@ -2558,22 +2389,17 @@ xfs_bmap_add_extent_unwritten_real(
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
-					PREV.br_startblock, PREV.br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			if ((error = xfs_bmbt_update(cur, PREV.br_startoff,
-				PREV.br_startblock,
-				PREV.br_blockcount - new->br_blockcount,
-				oldext)))
+			error = xfs_bmbt_update(cur, &PREV);
+			if (error)
 				goto done;
-			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, new, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			cur->bc_rec.b.br_state = XFS_EXT_NORM;
 			if ((error = xfs_btree_insert(cur, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@@ -2586,20 +2412,20 @@ xfs_bmap_add_extent_unwritten_real(
 		 * newext.  Contiguity is impossible here.
 		 * One extent becomes three extents.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep,
-			new->br_startoff - PREV.br_startoff);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		old = PREV;
+		PREV.br_blockcount = new->br_startoff - PREV.br_startoff;
 
 		r[0] = *new;
 		r[1].br_startoff = new_endoff;
 		r[1].br_blockcount =
-			PREV.br_startoff + PREV.br_blockcount - new_endoff;
+			old.br_startoff + old.br_blockcount - new_endoff;
 		r[1].br_startblock = new->br_startblock + new->br_blockcount;
-		r[1].br_state = oldext;
+		r[1].br_state = PREV.br_state;
 
-		++*idx;
-		xfs_iext_insert(ip, *idx, 2, &r[0], state);
+		xfs_iext_update_extent(ip, state, icur, &PREV);
+		xfs_iext_next(ifp, icur);
+		xfs_iext_insert(ip, icur, &r[1], state);
+		xfs_iext_insert(ip, icur, &r[0], state);
 
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 				XFS_IFORK_NEXTENTS(ip, whichfork) + 2);
@@ -2607,20 +2433,16 @@ xfs_bmap_add_extent_unwritten_real(
 			rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
 		else {
 			rval = XFS_ILOG_CORE;
-			if ((error = xfs_bmbt_lookup_eq(cur, PREV.br_startoff,
-					PREV.br_startblock, PREV.br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
 			/* new right extent - oldext */
-			if ((error = xfs_bmbt_update(cur, r[1].br_startoff,
-				r[1].br_startblock, r[1].br_blockcount,
-				r[1].br_state)))
+			error = xfs_bmbt_update(cur, &r[1]);
+			if (error)
 				goto done;
 			/* new left extent - oldext */
 			cur->bc_rec.b = PREV;
-			cur->bc_rec.b.br_blockcount =
-				new->br_startoff - PREV.br_startoff;
 			if ((error = xfs_btree_insert(cur, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@@ -2629,13 +2451,11 @@ xfs_bmap_add_extent_unwritten_real(
 			 * we are about to insert as we can't trust it after
 			 * the previous insert.
 			 */
-			if ((error = xfs_bmbt_lookup_eq(cur, new->br_startoff,
-					new->br_startblock, new->br_blockcount,
-					&i)))
+			error = xfs_bmbt_lookup_eq(cur, new, &i);
+			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
 			/* new middle extent - newext */
-			cur->bc_rec.b.br_state = new->br_state;
 			if ((error = xfs_btree_insert(cur, &i)))
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@@ -2694,7 +2514,7 @@ STATIC void
 xfs_bmap_add_extent_hole_delay(
 	xfs_inode_t		*ip,	/* incore inode pointer */
 	int			whichfork,
-	xfs_extnum_t		*idx,	/* extent number to update/insert */
+	struct xfs_iext_cursor	*icur,
 	xfs_bmbt_irec_t		*new)	/* new data to add to file extents */
 {
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
@@ -2702,22 +2522,17 @@ xfs_bmap_add_extent_hole_delay(
 	xfs_filblks_t		newlen=0;	/* new indirect size */
 	xfs_filblks_t		oldlen=0;	/* old indirect size */
 	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
-	int			state;  /* state bits, accessed thru macros */
-	xfs_filblks_t		temp=0;	/* temp for indirect calculations */
+	int			state = xfs_bmap_fork_to_state(whichfork);
+	xfs_filblks_t		temp;	 /* temp for indirect calculations */
 
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	state = 0;
-	if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
 	ASSERT(isnullstartblock(new->br_startblock));
 
 	/*
 	 * Check and set flags if this segment has a left neighbor
 	 */
-	if (*idx > 0) {
+	if (xfs_iext_peek_prev_extent(ifp, icur, &left)) {
 		state |= BMAP_LEFT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx - 1), &left);
-
 		if (isnullstartblock(left.br_startblock))
 			state |= BMAP_LEFT_DELAY;
 	}
@@ -2726,10 +2541,8 @@ xfs_bmap_add_extent_hole_delay(
 	 * Check and set flags if the current (right) segment exists.
 	 * If it doesn't exist, we're converting the hole at end-of-file.
 	 */
-	if (*idx < xfs_iext_count(ifp)) {
+	if (xfs_iext_get_extent(ifp, icur, &right)) {
 		state |= BMAP_RIGHT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx), &right);
-
 		if (isnullstartblock(right.br_startblock))
 			state |= BMAP_RIGHT_DELAY;
 	}
@@ -2761,22 +2574,20 @@ xfs_bmap_add_extent_hole_delay(
 		 * on the left and on the right.
 		 * Merge all three into a single extent record.
 		 */
-		--*idx;
 		temp = left.br_blockcount + new->br_blockcount +
 			right.br_blockcount;
 
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx), temp);
 		oldlen = startblockval(left.br_startblock) +
 			startblockval(new->br_startblock) +
 			startblockval(right.br_startblock);
 		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
 					 oldlen);
-		xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, *idx),
-			nullstartblock((int)newlen));
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		left.br_startblock = nullstartblock(newlen);
+		left.br_blockcount = temp;
 
-		xfs_iext_remove(ip, *idx + 1, 1, state);
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &left);
 		break;
 
 	case BMAP_LEFT_CONTIG:
@@ -2785,18 +2596,17 @@ xfs_bmap_add_extent_hole_delay(
 		 * on the left.
 		 * Merge the new allocation with the left neighbor.
 		 */
-		--*idx;
 		temp = left.br_blockcount + new->br_blockcount;
 
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx), temp);
 		oldlen = startblockval(left.br_startblock) +
 			startblockval(new->br_startblock);
 		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
 					 oldlen);
-		xfs_bmbt_set_startblock(xfs_iext_get_ext(ifp, *idx),
-			nullstartblock((int)newlen));
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		left.br_blockcount = temp;
+		left.br_startblock = nullstartblock(newlen);
+
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &left);
 		break;
 
 	case BMAP_RIGHT_CONTIG:
@@ -2805,16 +2615,15 @@ xfs_bmap_add_extent_hole_delay(
 		 * on the right.
 		 * Merge the new allocation with the right neighbor.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
 		temp = new->br_blockcount + right.br_blockcount;
 		oldlen = startblockval(new->br_startblock) +
 			startblockval(right.br_startblock);
 		newlen = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
 					 oldlen);
-		xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, *idx),
-			new->br_startoff,
-			nullstartblock((int)newlen), temp, right.br_state);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		right.br_startoff = new->br_startoff;
+		right.br_startblock = nullstartblock(newlen);
+		right.br_blockcount = temp;
+		xfs_iext_update_extent(ip, state, icur, &right);
 		break;
 
 	case 0:
@@ -2824,7 +2633,7 @@ xfs_bmap_add_extent_hole_delay(
 		 * Insert a new entry.
 		 */
 		oldlen = newlen = 0;
-		xfs_iext_insert(ip, *idx, 1, new, state);
+		xfs_iext_insert(ip, icur, new, state);
 		break;
 	}
 	if (oldlen != newlen) {
@@ -2845,7 +2654,7 @@ xfs_bmap_add_extent_hole_real(
 	struct xfs_trans	*tp,
 	struct xfs_inode	*ip,
 	int			whichfork,
-	xfs_extnum_t		*idx,
+	struct xfs_iext_cursor	*icur,
 	struct xfs_btree_cur	**curp,
 	struct xfs_bmbt_irec	*new,
 	xfs_fsblock_t		*first,
@@ -2860,27 +2669,19 @@ xfs_bmap_add_extent_hole_real(
 	xfs_bmbt_irec_t		left;	/* left neighbor extent entry */
 	xfs_bmbt_irec_t		right;	/* right neighbor extent entry */
 	int			rval=0;	/* return value (logging flags) */
-	int			state;	/* state bits, accessed thru macros */
+	int			state = xfs_bmap_fork_to_state(whichfork);
+	struct xfs_bmbt_irec	old;
 
-	ASSERT(*idx >= 0);
-	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(!isnullstartblock(new->br_startblock));
 	ASSERT(!cur || !(cur->bc_private.b.flags & XFS_BTCUR_BPRV_WASDEL));
 
 	XFS_STATS_INC(mp, xs_add_exlist);
 
-	state = 0;
-	if (whichfork == XFS_ATTR_FORK)
-		state |= BMAP_ATTRFORK;
-	if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
-
 	/*
 	 * Check and set flags if this segment has a left neighbor.
 	 */
-	if (*idx > 0) {
+	if (xfs_iext_peek_prev_extent(ifp, icur, &left)) {
 		state |= BMAP_LEFT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx - 1), &left);
 		if (isnullstartblock(left.br_startblock))
 			state |= BMAP_LEFT_DELAY;
 	}
@@ -2889,9 +2690,8 @@ xfs_bmap_add_extent_hole_real(
 	 * Check and set flags if this segment has a current value.
 	 * Not true if we're inserting into the "hole" at eof.
 	 */
-	if (*idx < xfs_iext_count(ifp)) {
+	if (xfs_iext_get_extent(ifp, icur, &right)) {
 		state |= BMAP_RIGHT_VALID;
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *idx), &right);
 		if (isnullstartblock(right.br_startblock))
 			state |= BMAP_RIGHT_DELAY;
 	}
@@ -2928,14 +2728,11 @@ xfs_bmap_add_extent_hole_real(
 		 * left and on the right.
 		 * Merge all three into a single extent record.
 		 */
-		--*idx;
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx),
-			left.br_blockcount + new->br_blockcount +
-			right.br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		left.br_blockcount += new->br_blockcount + right.br_blockcount;
 
-		xfs_iext_remove(ip, *idx + 1, 1, state);
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &left);
 
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 			XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
@@ -2943,9 +2740,7 @@ xfs_bmap_add_extent_hole_real(
 			rval = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
 		} else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(cur, right.br_startoff,
-					right.br_startblock, right.br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(cur, &right, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
@@ -2957,12 +2752,7 @@ xfs_bmap_add_extent_hole_real(
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(cur, left.br_startoff,
-					left.br_startblock,
-					left.br_blockcount +
-						new->br_blockcount +
-						right.br_blockcount,
-					left.br_state);
+			error = xfs_bmbt_update(cur, &left);
 			if (error)
 				goto done;
 		}
@@ -2974,27 +2764,21 @@ xfs_bmap_add_extent_hole_real(
 		 * on the left.
 		 * Merge the new allocation with the left neighbor.
 		 */
-		--*idx;
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(xfs_iext_get_ext(ifp, *idx),
-			left.br_blockcount + new->br_blockcount);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		old = left;
+		left.br_blockcount += new->br_blockcount;
+
+		xfs_iext_prev(ifp, icur);
+		xfs_iext_update_extent(ip, state, icur, &left);
 
 		if (cur == NULL) {
 			rval = xfs_ilog_fext(whichfork);
 		} else {
 			rval = 0;
-			error = xfs_bmbt_lookup_eq(cur, left.br_startoff,
-					left.br_startblock, left.br_blockcount,
-					&i);
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(cur, left.br_startoff,
-					left.br_startblock,
-					left.br_blockcount +
-						new->br_blockcount,
-					left.br_state);
+			error = xfs_bmbt_update(cur, &left);
 			if (error)
 				goto done;
 		}
@@ -3006,29 +2790,22 @@ xfs_bmap_add_extent_hole_real(
 		 * on the right.
 		 * Merge the new allocation with the right neighbor.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_allf(xfs_iext_get_ext(ifp, *idx),
-			new->br_startoff, new->br_startblock,
-			new->br_blockcount + right.br_blockcount,
-			right.br_state);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		old = right;
+
+		right.br_startoff = new->br_startoff;
+		right.br_startblock = new->br_startblock;
+		right.br_blockcount += new->br_blockcount;
+		xfs_iext_update_extent(ip, state, icur, &right);
 
 		if (cur == NULL) {
 			rval = xfs_ilog_fext(whichfork);
 		} else {
 			rval = 0;
-			error = xfs_bmbt_lookup_eq(cur,
-					right.br_startoff,
-					right.br_startblock,
-					right.br_blockcount, &i);
+			error = xfs_bmbt_lookup_eq(cur, &old, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			error = xfs_bmbt_update(cur, new->br_startoff,
-					new->br_startblock,
-					new->br_blockcount +
-						right.br_blockcount,
-					right.br_state);
+			error = xfs_bmbt_update(cur, &right);
 			if (error)
 				goto done;
 		}
@@ -3040,21 +2817,17 @@ xfs_bmap_add_extent_hole_real(
 		 * real allocation.
 		 * Insert a new entry.
 		 */
-		xfs_iext_insert(ip, *idx, 1, new, state);
+		xfs_iext_insert(ip, icur, new, state);
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 			XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
 		if (cur == NULL) {
 			rval = XFS_ILOG_CORE | xfs_ilog_fext(whichfork);
 		} else {
 			rval = XFS_ILOG_CORE;
-			error = xfs_bmbt_lookup_eq(cur,
-					new->br_startoff,
-					new->br_startblock,
-					new->br_blockcount, &i);
+			error = xfs_bmbt_lookup_eq(cur, new, &i);
 			if (error)
 				goto done;
 			XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
-			cur->bc_rec.b.br_state = new->br_state;
 			error = xfs_btree_insert(cur, &i);
 			if (error)
 				goto done;
@@ -3865,6 +3638,17 @@ xfs_trim_extent(
 	}
 }
 
+/* trim extent to within eof */
+void
+xfs_trim_extent_eof(
+	struct xfs_bmbt_irec	*irec,
+	struct xfs_inode	*ip)
+
+{
+	xfs_trim_extent(irec, 0, XFS_B_TO_FSB(ip->i_mount,
+					      i_size_read(VFS_I(ip))));
+}
+
 /*
  * Trim the returned map to the required bounds
  */
@@ -3983,7 +3767,7 @@ xfs_bmapi_read(
 	struct xfs_bmbt_irec	got;
 	xfs_fileoff_t		obno;
 	xfs_fileoff_t		end;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 	int			error;
 	bool			eof = false;
 	int			n = 0;
@@ -4025,7 +3809,7 @@ xfs_bmapi_read(
 			return error;
 	}
 
-	if (!xfs_iext_lookup_extent(ip, ifp, bno, &idx, &got))
+	if (!xfs_iext_lookup_extent(ip, ifp, bno, &icur, &got))
 		eof = true;
 	end = bno + len;
 	obno = bno;
@@ -4057,7 +3841,7 @@ xfs_bmapi_read(
 			break;
 
 		/* Else go on to the next record. */
-		if (!xfs_iext_get_extent(ifp, ++idx, &got))
+		if (!xfs_iext_next_extent(ifp, &icur, &got))
 			eof = true;
 	}
 	*nmap = n;
@@ -4085,7 +3869,7 @@ xfs_bmapi_reserve_delalloc(
 	xfs_filblks_t		len,
 	xfs_filblks_t		prealloc,
 	struct xfs_bmbt_irec	*got,
-	xfs_extnum_t		*lastx,
+	struct xfs_iext_cursor	*icur,
 	int			eof)
 {
 	struct xfs_mount	*mp = ip->i_mount;
@@ -4115,7 +3899,7 @@ xfs_bmapi_reserve_delalloc(
 	if (extsz) {
 		struct xfs_bmbt_irec	prev;
 
-		if (!xfs_iext_get_extent(ifp, *lastx - 1, &prev))
+		if (!xfs_iext_peek_prev_extent(ifp, icur, &prev))
 			prev.br_startoff = NULLFILEOFF;
 
 		error = xfs_bmap_extsize_align(mp, got, &prev, extsz, rt, eof,
@@ -4164,7 +3948,7 @@ xfs_bmapi_reserve_delalloc(
 	got->br_blockcount = alen;
 	got->br_state = XFS_EXT_NORM;
 
-	xfs_bmap_add_extent_hole_delay(ip, whichfork, lastx, got);
+	xfs_bmap_add_extent_hole_delay(ip, whichfork, icur, got);
 
 	/*
 	 * Tag the inode if blocks were preallocated. Note that COW fork
@@ -4209,10 +3993,7 @@ xfs_bmapi_allocate(
 	if (bma->wasdel) {
 		bma->length = (xfs_extlen_t)bma->got.br_blockcount;
 		bma->offset = bma->got.br_startoff;
-		if (bma->idx) {
-			xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx - 1),
-					 &bma->prev);
-		}
+		xfs_iext_peek_prev_extent(ifp, &bma->icur, &bma->prev);
 	} else {
 		bma->length = XFS_FILBLKS_MIN(bma->length, MAXEXTLEN);
 		if (!bma->eof)
@@ -4297,7 +4078,7 @@ xfs_bmapi_allocate(
 		error = xfs_bmap_add_extent_delay_real(bma, whichfork);
 	else
 		error = xfs_bmap_add_extent_hole_real(bma->tp, bma->ip,
-				whichfork, &bma->idx, &bma->cur, &bma->got,
+				whichfork, &bma->icur, &bma->cur, &bma->got,
 				bma->firstblock, bma->dfops, &bma->logflags);
 
 	bma->logflags |= tmp_logflags;
@@ -4309,7 +4090,7 @@ xfs_bmapi_allocate(
 	 * or xfs_bmap_add_extent_hole_real might have merged it into one of
 	 * the neighbouring ones.
 	 */
-	xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx), &bma->got);
+	xfs_iext_get_extent(ifp, &bma->icur, &bma->got);
 
 	ASSERT(bma->got.br_startoff <= bma->offset);
 	ASSERT(bma->got.br_startoff + bma->got.br_blockcount >=
@@ -4367,8 +4148,8 @@ xfs_bmapi_convert_unwritten(
 	}
 
 	error = xfs_bmap_add_extent_unwritten_real(bma->tp, bma->ip, whichfork,
-			&bma->idx, &bma->cur, mval, bma->firstblock, bma->dfops,
-			&tmp_logflags);
+			&bma->icur, &bma->cur, mval, bma->firstblock,
+			bma->dfops, &tmp_logflags);
 	/*
 	 * Log the inode core unconditionally in the unwritten extent conversion
 	 * path because the conversion might not have done so (e.g., if the
@@ -4390,7 +4171,7 @@ xfs_bmapi_convert_unwritten(
 	 * xfs_bmap_add_extent_unwritten_real might have merged it into one
 	 * of the neighbouring ones.
 	 */
-	xfs_bmbt_get_all(xfs_iext_get_ext(ifp, bma->idx), &bma->got);
+	xfs_iext_get_extent(ifp, &bma->icur, &bma->got);
 
 	/*
 	 * We may have combined previously unwritten space with written space,
@@ -4509,9 +4290,9 @@ xfs_bmapi_write(
 	end = bno + len;
 	obno = bno;
 
-	if (!xfs_iext_lookup_extent(ip, ifp, bno, &bma.idx, &bma.got))
+	if (!xfs_iext_lookup_extent(ip, ifp, bno, &bma.icur, &bma.got))
 		eof = true;
-	if (!xfs_iext_get_extent(ifp, bma.idx - 1, &bma.prev))
+	if (!xfs_iext_peek_prev_extent(ifp, &bma.icur, &bma.prev))
 		bma.prev.br_startoff = NULLFILEOFF;
 	bma.tp = tp;
 	bma.ip = ip;
@@ -4553,7 +4334,8 @@ xfs_bmapi_write(
 		 * First, deal with the hole before the allocated space
 		 * that we found, if any.
 		 */
-		if (need_alloc || wasdelay) {
+		if ((need_alloc || wasdelay) &&
+		    !(flags & XFS_BMAPI_CONVERT_ONLY)) {
 			bma.eof = eof;
 			bma.conv = !!(flags & XFS_BMAPI_CONVERT);
 			bma.wasdel = wasdelay;
@@ -4616,7 +4398,7 @@ xfs_bmapi_write(
 
 		/* Else go on to the next record. */
 		bma.prev = bma.got;
-		if (!xfs_iext_get_extent(ifp, ++bma.idx, &bma.got))
+		if (!xfs_iext_next_extent(ifp, &bma.icur, &bma.got))
 			eof = true;
 	}
 	*nmap = n;
@@ -4689,7 +4471,7 @@ xfs_bmapi_remap(
 	struct xfs_btree_cur	*cur = NULL;
 	xfs_fsblock_t		firstblock = NULLFSBLOCK;
 	struct xfs_bmbt_irec	got;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 	int			logflags = 0, error;
 
 	ASSERT(len > 0);
@@ -4713,7 +4495,7 @@ xfs_bmapi_remap(
 			return error;
 	}
 
-	if (xfs_iext_lookup_extent(ip, ifp, bno, &idx, &got)) {
+	if (xfs_iext_lookup_extent(ip, ifp, bno, &icur, &got)) {
 		/* make sure we only reflink into a hole. */
 		ASSERT(got.br_startoff > bno);
 		ASSERT(got.br_startoff - bno >= len);
@@ -4734,8 +4516,8 @@ xfs_bmapi_remap(
 	got.br_blockcount = len;
 	got.br_state = XFS_EXT_NORM;
 
-	error = xfs_bmap_add_extent_hole_real(tp, ip, XFS_DATA_FORK, &idx, &cur,
-			&got, &firstblock, dfops, &logflags);
+	error = xfs_bmap_add_extent_hole_real(tp, ip, XFS_DATA_FORK, &icur,
+			&cur, &got, &firstblock, dfops, &logflags);
 	if (error)
 		goto error0;
 
@@ -4851,7 +4633,7 @@ int
 xfs_bmap_del_extent_delay(
 	struct xfs_inode	*ip,
 	int			whichfork,
-	xfs_extnum_t		*idx,
+	struct xfs_iext_cursor	*icur,
 	struct xfs_bmbt_irec	*got,
 	struct xfs_bmbt_irec	*del)
 {
@@ -4861,7 +4643,8 @@ xfs_bmap_del_extent_delay(
 	int64_t			da_old, da_new, da_diff = 0;
 	xfs_fileoff_t		del_endoff, got_endoff;
 	xfs_filblks_t		got_indlen, new_indlen, stolen;
-	int			error = 0, state = 0;
+	int			state = xfs_bmap_fork_to_state(whichfork);
+	int			error = 0;
 	bool			isrt;
 
 	XFS_STATS_INC(mp, xs_del_exlist);
@@ -4872,8 +4655,6 @@ xfs_bmap_del_extent_delay(
 	da_old = startblockval(got->br_startblock);
 	da_new = 0;
 
-	ASSERT(*idx >= 0);
-	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(del->br_blockcount > 0);
 	ASSERT(got->br_startoff <= del->br_startoff);
 	ASSERT(got_endoff >= del_endoff);
@@ -4897,46 +4678,39 @@ xfs_bmap_del_extent_delay(
 		return error;
 	ip->i_delayed_blks -= del->br_blockcount;
 
-	if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
-
 	if (got->br_startoff == del->br_startoff)
-		state |= BMAP_LEFT_CONTIG;
+		state |= BMAP_LEFT_FILLING;
 	if (got_endoff == del_endoff)
-		state |= BMAP_RIGHT_CONTIG;
+		state |= BMAP_RIGHT_FILLING;
 
-	switch (state & (BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG)) {
-	case BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
+	switch (state & (BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING)) {
+	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
 		/*
 		 * Matches the whole extent.  Delete the entry.
 		 */
-		xfs_iext_remove(ip, *idx, 1, state);
-		--*idx;
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
 		break;
-	case BMAP_LEFT_CONTIG:
+	case BMAP_LEFT_FILLING:
 		/*
 		 * Deleting the first part of the extent.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
 		got->br_startoff = del_endoff;
 		got->br_blockcount -= del->br_blockcount;
 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip,
 				got->br_blockcount), da_old);
 		got->br_startblock = nullstartblock((int)da_new);
-		xfs_iext_update_extent(ifp, *idx, got);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		xfs_iext_update_extent(ip, state, icur, got);
 		break;
-	case BMAP_RIGHT_CONTIG:
+	case BMAP_RIGHT_FILLING:
 		/*
 		 * Deleting the last part of the extent.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
 		got->br_blockcount = got->br_blockcount - del->br_blockcount;
 		da_new = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip,
 				got->br_blockcount), da_old);
 		got->br_startblock = nullstartblock((int)da_new);
-		xfs_iext_update_extent(ifp, *idx, got);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		xfs_iext_update_extent(ip, state, icur, got);
 		break;
 	case 0:
 		/*
@@ -4948,8 +4722,6 @@ xfs_bmap_del_extent_delay(
 		 * Warn if either of the new indlen reservations is zero as this
 		 * can lead to delalloc problems.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-
 		got->br_blockcount = del->br_startoff - got->br_startoff;
 		got_indlen = xfs_bmap_worst_indlen(ip, got->br_blockcount);
 
@@ -4961,15 +4733,14 @@ xfs_bmap_del_extent_delay(
 						       del->br_blockcount);
 
 		got->br_startblock = nullstartblock((int)got_indlen);
-		xfs_iext_update_extent(ifp, *idx, got);
-		trace_xfs_bmap_post_update(ip, *idx, 0, _THIS_IP_);
 
 		new.br_startoff = del_endoff;
 		new.br_state = got->br_state;
 		new.br_startblock = nullstartblock((int)new_indlen);
 
-		++*idx;
-		xfs_iext_insert(ip, *idx, 1, &new, state);
+		xfs_iext_update_extent(ip, state, icur, got);
+		xfs_iext_next(ifp, icur);
+		xfs_iext_insert(ip, icur, &new, state);
 
 		da_new = got_indlen + new_indlen - stolen;
 		del->br_blockcount -= stolen;
@@ -4988,7 +4759,7 @@ xfs_bmap_del_extent_delay(
 void
 xfs_bmap_del_extent_cow(
 	struct xfs_inode	*ip,
-	xfs_extnum_t		*idx,
+	struct xfs_iext_cursor	*icur,
 	struct xfs_bmbt_irec	*got,
 	struct xfs_bmbt_irec	*del)
 {
@@ -5003,75 +4774,67 @@ xfs_bmap_del_extent_cow(
 	del_endoff = del->br_startoff + del->br_blockcount;
 	got_endoff = got->br_startoff + got->br_blockcount;
 
-	ASSERT(*idx >= 0);
-	ASSERT(*idx <= xfs_iext_count(ifp));
 	ASSERT(del->br_blockcount > 0);
 	ASSERT(got->br_startoff <= del->br_startoff);
 	ASSERT(got_endoff >= del_endoff);
 	ASSERT(!isnullstartblock(got->br_startblock));
 
 	if (got->br_startoff == del->br_startoff)
-		state |= BMAP_LEFT_CONTIG;
+		state |= BMAP_LEFT_FILLING;
 	if (got_endoff == del_endoff)
-		state |= BMAP_RIGHT_CONTIG;
+		state |= BMAP_RIGHT_FILLING;
 
-	switch (state & (BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG)) {
-	case BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
+	switch (state & (BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING)) {
+	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
 		/*
 		 * Matches the whole extent.  Delete the entry.
 		 */
-		xfs_iext_remove(ip, *idx, 1, state);
-		--*idx;
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
 		break;
-	case BMAP_LEFT_CONTIG:
+	case BMAP_LEFT_FILLING:
 		/*
 		 * Deleting the first part of the extent.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
 		got->br_startoff = del_endoff;
 		got->br_blockcount -= del->br_blockcount;
 		got->br_startblock = del->br_startblock + del->br_blockcount;
-		xfs_iext_update_extent(ifp, *idx, got);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		xfs_iext_update_extent(ip, state, icur, got);
 		break;
-	case BMAP_RIGHT_CONTIG:
+	case BMAP_RIGHT_FILLING:
 		/*
 		 * Deleting the last part of the extent.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
 		got->br_blockcount -= del->br_blockcount;
-		xfs_iext_update_extent(ifp, *idx, got);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		xfs_iext_update_extent(ip, state, icur, got);
 		break;
 	case 0:
 		/*
 		 * Deleting the middle of the extent.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
 		got->br_blockcount = del->br_startoff - got->br_startoff;
-		xfs_iext_update_extent(ifp, *idx, got);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
 
 		new.br_startoff = del_endoff;
 		new.br_blockcount = got_endoff - del_endoff;
 		new.br_state = got->br_state;
 		new.br_startblock = del->br_startblock + del->br_blockcount;
 
-		++*idx;
-		xfs_iext_insert(ip, *idx, 1, &new, state);
+		xfs_iext_update_extent(ip, state, icur, got);
+		xfs_iext_next(ifp, icur);
+		xfs_iext_insert(ip, icur, &new, state);
 		break;
 	}
 }
 
 /*
  * Called by xfs_bmapi to update file extent records and the btree
- * after removing space (or undoing a delayed allocation).
+ * after removing space.
  */
 STATIC int				/* error */
-xfs_bmap_del_extent(
+xfs_bmap_del_extent_real(
 	xfs_inode_t		*ip,	/* incore inode pointer */
 	xfs_trans_t		*tp,	/* current transaction pointer */
-	xfs_extnum_t		*idx,	/* extent number to update/delete */
+	struct xfs_iext_cursor	*icur,
 	struct xfs_defer_ops	*dfops,	/* list of extents to be freed */
 	xfs_btree_cur_t		*cur,	/* if null, not a btree */
 	xfs_bmbt_irec_t		*del,	/* data to remove from extents */
@@ -5079,16 +4842,12 @@ xfs_bmap_del_extent(
 	int			whichfork, /* data or attr fork */
 	int			bflags)	/* bmapi flags */
 {
-	xfs_filblks_t		da_new;	/* new delay-alloc indirect blocks */
-	xfs_filblks_t		da_old;	/* old delay-alloc indirect blocks */
 	xfs_fsblock_t		del_endblock=0;	/* first block past del */
 	xfs_fileoff_t		del_endoff;	/* first offset past del */
-	int			delay;	/* current block is delayed allocated */
 	int			do_fx;	/* free extent at end of routine */
-	xfs_bmbt_rec_host_t	*ep;	/* current extent entry pointer */
 	int			error;	/* error return value */
-	int			flags;	/* inode logging flags */
-	xfs_bmbt_irec_t		got;	/* current extent entry */
+	int			flags = 0;/* inode logging flags */
+	struct xfs_bmbt_irec	got;	/* current extent entry */
 	xfs_fileoff_t		got_endoff;	/* first offset past got */
 	int			i;	/* temp state */
 	xfs_ifork_t		*ifp;	/* inode fork pointer */
@@ -5097,103 +4856,81 @@ xfs_bmap_del_extent(
 	xfs_bmbt_irec_t		new;	/* new record to be inserted */
 	/* REFERENCED */
 	uint			qfield;	/* quota field to update */
-	xfs_filblks_t		temp;	/* for indirect length calculations */
-	xfs_filblks_t		temp2;	/* for indirect length calculations */
-	int			state = 0;
+	int			state = xfs_bmap_fork_to_state(whichfork);
+	struct xfs_bmbt_irec	old;
 
 	mp = ip->i_mount;
 	XFS_STATS_INC(mp, xs_del_exlist);
 
-	if (whichfork == XFS_ATTR_FORK)
-		state |= BMAP_ATTRFORK;
-	else if (whichfork == XFS_COW_FORK)
-		state |= BMAP_COWFORK;
-
 	ifp = XFS_IFORK_PTR(ip, whichfork);
-	ASSERT((*idx >= 0) && (*idx < xfs_iext_count(ifp)));
 	ASSERT(del->br_blockcount > 0);
-	ep = xfs_iext_get_ext(ifp, *idx);
-	xfs_bmbt_get_all(ep, &got);
+	xfs_iext_get_extent(ifp, icur, &got);
 	ASSERT(got.br_startoff <= del->br_startoff);
 	del_endoff = del->br_startoff + del->br_blockcount;
 	got_endoff = got.br_startoff + got.br_blockcount;
 	ASSERT(got_endoff >= del_endoff);
-	delay = isnullstartblock(got.br_startblock);
-	ASSERT(isnullstartblock(del->br_startblock) == delay);
-	flags = 0;
+	ASSERT(!isnullstartblock(got.br_startblock));
 	qfield = 0;
 	error = 0;
+
 	/*
-	 * If deleting a real allocation, must free up the disk space.
+	 * If it's the case where the directory code is running with no block
+	 * reservation, and the deleted block is in the middle of its extent,
+	 * and the resulting insert of an extent would cause transformation to
+	 * btree format, then reject it.  The calling code will then swap blocks
+	 * around instead.  We have to do this now, rather than waiting for the
+	 * conversion to btree format, since the transaction will be dirty then.
 	 */
-	if (!delay) {
-		flags = XFS_ILOG_CORE;
-		/*
-		 * Realtime allocation.  Free it and record di_nblocks update.
-		 */
-		if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {
-			xfs_fsblock_t	bno;
-			xfs_filblks_t	len;
-
-			ASSERT(do_mod(del->br_blockcount,
-				      mp->m_sb.sb_rextsize) == 0);
-			ASSERT(do_mod(del->br_startblock,
-				      mp->m_sb.sb_rextsize) == 0);
-			bno = del->br_startblock;
-			len = del->br_blockcount;
-			do_div(bno, mp->m_sb.sb_rextsize);
-			do_div(len, mp->m_sb.sb_rextsize);
-			error = xfs_rtfree_extent(tp, bno, (xfs_extlen_t)len);
-			if (error)
-				goto done;
-			do_fx = 0;
-			nblks = len * mp->m_sb.sb_rextsize;
-			qfield = XFS_TRANS_DQ_RTBCOUNT;
-		}
-		/*
-		 * Ordinary allocation.
-		 */
-		else {
-			do_fx = 1;
-			nblks = del->br_blockcount;
-			qfield = XFS_TRANS_DQ_BCOUNT;
-		}
-		/*
-		 * Set up del_endblock and cur for later.
-		 */
-		del_endblock = del->br_startblock + del->br_blockcount;
-		if (cur) {
-			if ((error = xfs_bmbt_lookup_eq(cur, got.br_startoff,
-					got.br_startblock, got.br_blockcount,
-					&i)))
-				goto done;
-			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-		}
-		da_old = da_new = 0;
-	} else {
-		da_old = startblockval(got.br_startblock);
-		da_new = 0;
-		nblks = 0;
+	if (tp->t_blk_res == 0 &&
+	    XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_NEXTENTS(ip, whichfork) >=
+			XFS_IFORK_MAXEXT(ip, whichfork) &&
+	    del->br_startoff > got.br_startoff && del_endoff < got_endoff)
+		return -ENOSPC;
+
+	flags = XFS_ILOG_CORE;
+	if (whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip)) {
+		xfs_fsblock_t	bno;
+		xfs_filblks_t	len;
+
+		ASSERT(do_mod(del->br_blockcount, mp->m_sb.sb_rextsize) == 0);
+		ASSERT(do_mod(del->br_startblock, mp->m_sb.sb_rextsize) == 0);
+		bno = del->br_startblock;
+		len = del->br_blockcount;
+		do_div(bno, mp->m_sb.sb_rextsize);
+		do_div(len, mp->m_sb.sb_rextsize);
+		error = xfs_rtfree_extent(tp, bno, (xfs_extlen_t)len);
+		if (error)
+			goto done;
 		do_fx = 0;
+		nblks = len * mp->m_sb.sb_rextsize;
+		qfield = XFS_TRANS_DQ_RTBCOUNT;
+	} else {
+		do_fx = 1;
+		nblks = del->br_blockcount;
+		qfield = XFS_TRANS_DQ_BCOUNT;
 	}
 
-	/*
-	 * Set flag value to use in switch statement.
-	 * Left-contig is 2, right-contig is 1.
-	 */
-	switch (((got.br_startoff == del->br_startoff) << 1) |
-		(got_endoff == del_endoff)) {
-	case 3:
+	del_endblock = del->br_startblock + del->br_blockcount;
+	if (cur) {
+		error = xfs_bmbt_lookup_eq(cur, &got, &i);
+		if (error)
+			goto done;
+		XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
+	}
+
+	if (got.br_startoff == del->br_startoff)
+		state |= BMAP_LEFT_FILLING;
+	if (got_endoff == del_endoff)
+		state |= BMAP_RIGHT_FILLING;
+
+	switch (state & (BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING)) {
+	case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
 		/*
 		 * Matches the whole extent.  Delete the entry.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_iext_remove(ip, *idx, 1,
-				whichfork == XFS_ATTR_FORK ? BMAP_ATTRFORK : 0);
-		--*idx;
-		if (delay)
-			break;
-
+		xfs_iext_remove(ip, icur, state);
+		xfs_iext_prev(ifp, icur);
 		XFS_IFORK_NEXT_SET(ip, whichfork,
 			XFS_IFORK_NEXTENTS(ip, whichfork) - 1);
 		flags |= XFS_ILOG_CORE;
@@ -5205,168 +4942,106 @@ xfs_bmap_del_extent(
 			goto done;
 		XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
 		break;
-
-	case 2:
+	case BMAP_LEFT_FILLING:
 		/*
 		 * Deleting the first part of the extent.
 		 */
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_startoff(ep, del_endoff);
-		temp = got.br_blockcount - del->br_blockcount;
-		xfs_bmbt_set_blockcount(ep, temp);
-		if (delay) {
-			temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
-				da_old);
-			xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
-			trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-			da_new = temp;
-			break;
-		}
-		xfs_bmbt_set_startblock(ep, del_endblock);
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		got.br_startoff = del_endoff;
+		got.br_startblock = del_endblock;
+		got.br_blockcount -= del->br_blockcount;
+		xfs_iext_update_extent(ip, state, icur, &got);
 		if (!cur) {
 			flags |= xfs_ilog_fext(whichfork);
 			break;
 		}
-		if ((error = xfs_bmbt_update(cur, del_endoff, del_endblock,
-				got.br_blockcount - del->br_blockcount,
-				got.br_state)))
+		error = xfs_bmbt_update(cur, &got);
+		if (error)
 			goto done;
 		break;
-
-	case 1:
+	case BMAP_RIGHT_FILLING:
 		/*
 		 * Deleting the last part of the extent.
 		 */
-		temp = got.br_blockcount - del->br_blockcount;
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep, temp);
-		if (delay) {
-			temp = XFS_FILBLKS_MIN(xfs_bmap_worst_indlen(ip, temp),
-				da_old);
-			xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
-			trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-			da_new = temp;
-			break;
-		}
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
+		got.br_blockcount -= del->br_blockcount;
+		xfs_iext_update_extent(ip, state, icur, &got);
 		if (!cur) {
 			flags |= xfs_ilog_fext(whichfork);
 			break;
 		}
-		if ((error = xfs_bmbt_update(cur, got.br_startoff,
-				got.br_startblock,
-				got.br_blockcount - del->br_blockcount,
-				got.br_state)))
+		error = xfs_bmbt_update(cur, &got);
+		if (error)
 			goto done;
 		break;
-
 	case 0:
 		/*
 		 * Deleting the middle of the extent.
 		 */
-		temp = del->br_startoff - got.br_startoff;
-		trace_xfs_bmap_pre_update(ip, *idx, state, _THIS_IP_);
-		xfs_bmbt_set_blockcount(ep, temp);
+		old = got;
+
+		got.br_blockcount = del->br_startoff - got.br_startoff;
+		xfs_iext_update_extent(ip, state, icur, &got);
+
 		new.br_startoff = del_endoff;
-		temp2 = got_endoff - del_endoff;
-		new.br_blockcount = temp2;
+		new.br_blockcount = got_endoff - del_endoff;
 		new.br_state = got.br_state;
-		if (!delay) {
-			new.br_startblock = del_endblock;
-			flags |= XFS_ILOG_CORE;
-			if (cur) {
-				if ((error = xfs_bmbt_update(cur,
-						got.br_startoff,
-						got.br_startblock, temp,
-						got.br_state)))
-					goto done;
-				if ((error = xfs_btree_increment(cur, 0, &i)))
-					goto done;
-				cur->bc_rec.b = new;
-				error = xfs_btree_insert(cur, &i);
-				if (error && error != -ENOSPC)
-					goto done;
+		new.br_startblock = del_endblock;
+
+		flags |= XFS_ILOG_CORE;
+		if (cur) {
+			error = xfs_bmbt_update(cur, &got);
+			if (error)
+				goto done;
+			error = xfs_btree_increment(cur, 0, &i);
+			if (error)
+				goto done;
+			cur->bc_rec.b = new;
+			error = xfs_btree_insert(cur, &i);
+			if (error && error != -ENOSPC)
+				goto done;
+			/*
+			 * If get no-space back from btree insert, it tried a
+			 * split, and we have a zero block reservation.  Fix up
+			 * our state and return the error.
+			 */
+			if (error == -ENOSPC) {
 				/*
-				 * If get no-space back from btree insert,
-				 * it tried a split, and we have a zero
-				 * block reservation.
-				 * Fix up our state and return the error.
+				 * Reset the cursor, don't trust it after any
+				 * insert operation.
 				 */
-				if (error == -ENOSPC) {
-					/*
-					 * Reset the cursor, don't trust
-					 * it after any insert operation.
-					 */
-					if ((error = xfs_bmbt_lookup_eq(cur,
-							got.br_startoff,
-							got.br_startblock,
-							temp, &i)))
-						goto done;
-					XFS_WANT_CORRUPTED_GOTO(mp,
-								i == 1, done);
-					/*
-					 * Update the btree record back
-					 * to the original value.
-					 */
-					if ((error = xfs_bmbt_update(cur,
-							got.br_startoff,
-							got.br_startblock,
-							got.br_blockcount,
-							got.br_state)))
-						goto done;
-					/*
-					 * Reset the extent record back
-					 * to the original value.
-					 */
-					xfs_bmbt_set_blockcount(ep,
-						got.br_blockcount);
-					flags = 0;
-					error = -ENOSPC;
+				error = xfs_bmbt_lookup_eq(cur, &got, &i);
+				if (error)
 					goto done;
-				}
 				XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
-			} else
-				flags |= xfs_ilog_fext(whichfork);
-			XFS_IFORK_NEXT_SET(ip, whichfork,
-				XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
-		} else {
-			xfs_filblks_t	stolen;
-			ASSERT(whichfork == XFS_DATA_FORK);
-
-			/*
-			 * Distribute the original indlen reservation across the
-			 * two new extents. Steal blocks from the deleted extent
-			 * if necessary. Stealing blocks simply fudges the
-			 * fdblocks accounting in xfs_bunmapi().
-			 */
-			temp = xfs_bmap_worst_indlen(ip, got.br_blockcount);
-			temp2 = xfs_bmap_worst_indlen(ip, new.br_blockcount);
-			stolen = xfs_bmap_split_indlen(da_old, &temp, &temp2,
-						       del->br_blockcount);
-			da_new = temp + temp2 - stolen;
-			del->br_blockcount -= stolen;
-
-			/*
-			 * Set the reservation for each extent. Warn if either
-			 * is zero as this can lead to delalloc problems.
-			 */
-			WARN_ON_ONCE(!temp || !temp2);
-			xfs_bmbt_set_startblock(ep, nullstartblock((int)temp));
-			new.br_startblock = nullstartblock((int)temp2);
-		}
-		trace_xfs_bmap_post_update(ip, *idx, state, _THIS_IP_);
-		xfs_iext_insert(ip, *idx + 1, 1, &new, state);
-		++*idx;
+				/*
+				 * Update the btree record back
+				 * to the original value.
+				 */
+				error = xfs_bmbt_update(cur, &old);
+				if (error)
+					goto done;
+				/*
+				 * Reset the extent record back
+				 * to the original value.
+				 */
+				xfs_iext_update_extent(ip, state, icur, &old);
+				flags = 0;
+				error = -ENOSPC;
+				goto done;
+			}
+			XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);
+		} else
+			flags |= xfs_ilog_fext(whichfork);
+		XFS_IFORK_NEXT_SET(ip, whichfork,
+			XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
+		xfs_iext_next(ifp, icur);
+		xfs_iext_insert(ip, icur, &new, state);
 		break;
 	}
 
 	/* remove reverse mapping */
-	if (!delay) {
-		error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, del);
-		if (error)
-			goto done;
-	}
+	error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, del);
+	if (error)
+		goto done;
 
 	/*
 	 * If we need to, add to list of extents to delete.
@@ -5392,13 +5067,6 @@ xfs_bmap_del_extent(
 	if (qfield && !(bflags & XFS_BMAPI_REMAP))
 		xfs_trans_mod_dquot_byino(tp, ip, qfield, (long)-nblks);
 
-	/*
-	 * Account for change in delayed indirect blocks.
-	 * Nothing to do for disk quota accounting here.
-	 */
-	ASSERT(da_old >= da_new);
-	if (da_old > da_new)
-		xfs_mod_fdblocks(mp, (int64_t)(da_old - da_new), false);
 done:
 	*logflagsp = flags;
 	return error;
@@ -5414,7 +5082,7 @@ int						/* error */
 __xfs_bunmapi(
 	xfs_trans_t		*tp,		/* transaction pointer */
 	struct xfs_inode	*ip,		/* incore inode */
-	xfs_fileoff_t		bno,		/* starting offset to unmap */
+	xfs_fileoff_t		start,		/* first file offset deleted */
 	xfs_filblks_t		*rlen,		/* i/o: amount remaining */
 	int			flags,		/* misc flags */
 	xfs_extnum_t		nexts,		/* number of extents max */
@@ -5429,11 +5097,9 @@ __xfs_bunmapi(
 	xfs_bmbt_irec_t		got;		/* current extent record */
 	xfs_ifork_t		*ifp;		/* inode fork pointer */
 	int			isrt;		/* freeing in rt area */
-	xfs_extnum_t		lastx;		/* last extent index used */
 	int			logflags;	/* transaction logging flags */
 	xfs_extlen_t		mod;		/* rt extent offset */
 	xfs_mount_t		*mp;		/* mount structure */
-	xfs_fileoff_t		start;		/* first file offset deleted */
 	int			tmp_logflags;	/* partial logging flags */
 	int			wasdel;		/* was a delayed alloc extent */
 	int			whichfork;	/* data or attribute fork */
@@ -5441,8 +5107,11 @@ __xfs_bunmapi(
 	xfs_filblks_t		len = *rlen;	/* length to unmap in file */
 	xfs_fileoff_t		max_len;
 	xfs_agnumber_t		prev_agno = NULLAGNUMBER, agno;
+	xfs_fileoff_t		end;
+	struct xfs_iext_cursor	icur;
+	bool			done = false;
 
-	trace_xfs_bunmap(ip, bno, len, flags, _RET_IP_);
+	trace_xfs_bunmap(ip, start, len, flags, _RET_IP_);
 
 	whichfork = xfs_bmapi_whichfork(flags);
 	ASSERT(whichfork != XFS_COW_FORK);
@@ -5481,18 +5150,13 @@ __xfs_bunmapi(
 	}
 	XFS_STATS_INC(mp, xs_blk_unmap);
 	isrt = (whichfork == XFS_DATA_FORK) && XFS_IS_REALTIME_INODE(ip);
-	start = bno;
-	bno = start + len - 1;
+	end = start + len;
 
-	/*
-	 * Check to see if the given block number is past the end of the
-	 * file, back up to the last block if so...
-	 */
-	if (!xfs_iext_lookup_extent(ip, ifp, bno, &lastx, &got)) {
-		ASSERT(lastx > 0);
-		xfs_iext_get_extent(ifp, --lastx, &got);
-		bno = got.br_startoff + got.br_blockcount - 1;
+	if (!xfs_iext_lookup_extent_before(ip, ifp, &end, &icur, &got)) {
+		*rlen = 0;
+		return 0;
 	}
+	end--;
 
 	logflags = 0;
 	if (ifp->if_flags & XFS_IFBROOT) {
@@ -5515,24 +5179,24 @@ __xfs_bunmapi(
 	}
 
 	extno = 0;
-	while (bno != (xfs_fileoff_t)-1 && bno >= start && lastx >= 0 &&
+	while (end != (xfs_fileoff_t)-1 && end >= start &&
 	       (nexts == 0 || extno < nexts) && max_len > 0) {
 		/*
-		 * Is the found extent after a hole in which bno lives?
+		 * Is the found extent after a hole in which end lives?
 		 * Just back up to the previous extent, if so.
 		 */
-		if (got.br_startoff > bno) {
-			if (--lastx < 0)
-				break;
-			xfs_iext_get_extent(ifp, lastx, &got);
+		if (got.br_startoff > end &&
+		    !xfs_iext_prev_extent(ifp, &icur, &got)) {
+			done = true;
+			break;
 		}
 		/*
 		 * Is the last block of this extent before the range
 		 * we're supposed to delete?  If so, we're done.
 		 */
-		bno = XFS_FILEOFF_MIN(bno,
+		end = XFS_FILEOFF_MIN(end,
 			got.br_startoff + got.br_blockcount - 1);
-		if (bno < start)
+		if (end < start)
 			break;
 		/*
 		 * Then deal with the (possibly delayed) allocated space
@@ -5557,8 +5221,8 @@ __xfs_bunmapi(
 			if (!wasdel)
 				del.br_startblock += start - got.br_startoff;
 		}
-		if (del.br_startoff + del.br_blockcount > bno + 1)
-			del.br_blockcount = bno + 1 - del.br_startoff;
+		if (del.br_startoff + del.br_blockcount > end + 1)
+			del.br_blockcount = end + 1 - del.br_startoff;
 
 		/* How much can we safely unmap? */
 		if (max_len < del.br_blockcount) {
@@ -5584,13 +5248,13 @@ __xfs_bunmapi(
 				 * This piece is unwritten, or we're not
 				 * using unwritten extents.  Skip over it.
 				 */
-				ASSERT(bno >= mod);
-				bno -= mod > del.br_blockcount ?
+				ASSERT(end >= mod);
+				end -= mod > del.br_blockcount ?
 					del.br_blockcount : mod;
-				if (bno < got.br_startoff) {
-					if (--lastx >= 0)
-						xfs_bmbt_get_all(xfs_iext_get_ext(
-							ifp, lastx), &got);
+				if (end < got.br_startoff &&
+				    !xfs_iext_prev_extent(ifp, &icur, &got)) {
+					done = true;
+					break;
 				}
 				continue;
 			}
@@ -5611,7 +5275,7 @@ __xfs_bunmapi(
 			}
 			del.br_state = XFS_EXT_UNWRITTEN;
 			error = xfs_bmap_add_extent_unwritten_real(tp, ip,
-					whichfork, &lastx, &cur, &del,
+					whichfork, &icur, &cur, &del,
 					firstblock, dfops, &logflags);
 			if (error)
 				goto error0;
@@ -5636,10 +5300,13 @@ __xfs_bunmapi(
 				 * Can't make it unwritten.  There isn't
 				 * a full extent here so just skip it.
 				 */
-				ASSERT(bno >= del.br_blockcount);
-				bno -= del.br_blockcount;
-				if (got.br_startoff > bno && --lastx >= 0)
-					xfs_iext_get_extent(ifp, lastx, &got);
+				ASSERT(end >= del.br_blockcount);
+				end -= del.br_blockcount;
+				if (got.br_startoff > end &&
+				    !xfs_iext_prev_extent(ifp, &icur, &got)) {
+					done = true;
+					break;
+				}
 				continue;
 			} else if (del.br_state == XFS_EXT_UNWRITTEN) {
 				struct xfs_bmbt_irec	prev;
@@ -5650,8 +5317,8 @@ __xfs_bunmapi(
 				 * Unwrite the killed part of that one and
 				 * try again.
 				 */
-				ASSERT(lastx > 0);
-				xfs_iext_get_extent(ifp, lastx - 1, &prev);
+				if (!xfs_iext_prev_extent(ifp, &icur, &prev))
+					ASSERT(0);
 				ASSERT(prev.br_state == XFS_EXT_NORM);
 				ASSERT(!isnullstartblock(prev.br_startblock));
 				ASSERT(del.br_startblock ==
@@ -5663,9 +5330,8 @@ __xfs_bunmapi(
 					prev.br_startoff = start;
 				}
 				prev.br_state = XFS_EXT_UNWRITTEN;
-				lastx--;
 				error = xfs_bmap_add_extent_unwritten_real(tp,
-						ip, whichfork, &lastx, &cur,
+						ip, whichfork, &icur, &cur,
 						&prev, firstblock, dfops,
 						&logflags);
 				if (error)
@@ -5675,7 +5341,7 @@ __xfs_bunmapi(
 				ASSERT(del.br_state == XFS_EXT_NORM);
 				del.br_state = XFS_EXT_UNWRITTEN;
 				error = xfs_bmap_add_extent_unwritten_real(tp,
-						ip, whichfork, &lastx, &cur,
+						ip, whichfork, &icur, &cur,
 						&del, firstblock, dfops,
 						&logflags);
 				if (error)
@@ -5684,85 +5350,39 @@ __xfs_bunmapi(
 			}
 		}
 
-		/*
-		 * If it's the case where the directory code is running
-		 * with no block reservation, and the deleted block is in
-		 * the middle of its extent, and the resulting insert
-		 * of an extent would cause transformation to btree format,
-		 * then reject it.  The calling code will then swap
-		 * blocks around instead.
-		 * We have to do this now, rather than waiting for the
-		 * conversion to btree format, since the transaction
-		 * will be dirty.
-		 */
-		if (!wasdel && tp->t_blk_res == 0 &&
-		    XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_EXTENTS &&
-		    XFS_IFORK_NEXTENTS(ip, whichfork) >= /* Note the >= */
-			XFS_IFORK_MAXEXT(ip, whichfork) &&
-		    del.br_startoff > got.br_startoff &&
-		    del.br_startoff + del.br_blockcount <
-		    got.br_startoff + got.br_blockcount) {
-			error = -ENOSPC;
-			goto error0;
+		if (wasdel) {
+			error = xfs_bmap_del_extent_delay(ip, whichfork, &icur,
+					&got, &del);
+		} else {
+			error = xfs_bmap_del_extent_real(ip, tp, &icur, dfops,
+					cur, &del, &tmp_logflags, whichfork,
+					flags);
+			logflags |= tmp_logflags;
 		}
 
-		/*
-		 * Unreserve quota and update realtime free space, if
-		 * appropriate. If delayed allocation, update the inode delalloc
-		 * counter now and wait to update the sb counters as
-		 * xfs_bmap_del_extent() might need to borrow some blocks.
-		 */
-		if (wasdel) {
-			ASSERT(startblockval(del.br_startblock) > 0);
-			if (isrt) {
-				xfs_filblks_t rtexts;
-
-				rtexts = XFS_FSB_TO_B(mp, del.br_blockcount);
-				do_div(rtexts, mp->m_sb.sb_rextsize);
-				xfs_mod_frextents(mp, (int64_t)rtexts);
-				(void)xfs_trans_reserve_quota_nblks(NULL,
-					ip, -((long)del.br_blockcount), 0,
-					XFS_QMOPT_RES_RTBLKS);
-			} else {
-				(void)xfs_trans_reserve_quota_nblks(NULL,
-					ip, -((long)del.br_blockcount), 0,
-					XFS_QMOPT_RES_REGBLKS);
-			}
-			ip->i_delayed_blks -= del.br_blockcount;
-			if (cur)
-				cur->bc_private.b.flags |=
-					XFS_BTCUR_BPRV_WASDEL;
-		} else if (cur)
-			cur->bc_private.b.flags &= ~XFS_BTCUR_BPRV_WASDEL;
-
-		error = xfs_bmap_del_extent(ip, tp, &lastx, dfops, cur, &del,
-				&tmp_logflags, whichfork, flags);
-		logflags |= tmp_logflags;
 		if (error)
 			goto error0;
 
-		if (!isrt && wasdel)
-			xfs_mod_fdblocks(mp, (int64_t)del.br_blockcount, false);
-
 		max_len -= del.br_blockcount;
-		bno = del.br_startoff - 1;
+		end = del.br_startoff - 1;
 nodelete:
 		/*
 		 * If not done go on to the next (previous) record.
 		 */
-		if (bno != (xfs_fileoff_t)-1 && bno >= start) {
-			if (lastx >= 0) {
-				xfs_iext_get_extent(ifp, lastx, &got);
-				if (got.br_startoff > bno && --lastx >= 0)
-					xfs_iext_get_extent(ifp, lastx, &got);
+		if (end != (xfs_fileoff_t)-1 && end >= start) {
+			if (!xfs_iext_get_extent(ifp, &icur, &got) ||
+			    (got.br_startoff > end &&
+			     !xfs_iext_prev_extent(ifp, &icur, &got))) {
+				done = true;
+				break;
 			}
 			extno++;
 		}
 	}
-	if (bno == (xfs_fileoff_t)-1 || bno < start || lastx < 0)
+	if (done || end == (xfs_fileoff_t)-1 || end < start)
 		*rlen = 0;
 	else
-		*rlen = bno - start + 1;
+		*rlen = end - start + 1;
 
 	/*
 	 * Convert to a btree if necessary.
@@ -5880,14 +5500,13 @@ xfs_bmse_merge(
 	struct xfs_inode		*ip,
 	int				whichfork,
 	xfs_fileoff_t			shift,		/* shift fsb */
-	int				current_ext,	/* idx of gotp */
+	struct xfs_iext_cursor		*icur,
 	struct xfs_bmbt_irec		*got,		/* extent to shift */
 	struct xfs_bmbt_irec		*left,		/* preceding extent */
 	struct xfs_btree_cur		*cur,
 	int				*logflags,	/* output */
 	struct xfs_defer_ops		*dfops)
 {
-	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, whichfork);
 	struct xfs_bmbt_irec		new;
 	xfs_filblks_t			blockcount;
 	int				error, i;
@@ -5915,8 +5534,7 @@ xfs_bmse_merge(
 	}
 
 	/* lookup and remove the extent to merge */
-	error = xfs_bmbt_lookup_eq(cur, got->br_startoff, got->br_startblock,
-				   got->br_blockcount, &i);
+	error = xfs_bmbt_lookup_eq(cur, got, &i);
 	if (error)
 		return error;
 	XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
@@ -5927,20 +5545,20 @@ xfs_bmse_merge(
 	XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
 
 	/* lookup and update size of the previous extent */
-	error = xfs_bmbt_lookup_eq(cur, left->br_startoff, left->br_startblock,
-				   left->br_blockcount, &i);
+	error = xfs_bmbt_lookup_eq(cur, left, &i);
 	if (error)
 		return error;
 	XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
 
-	error = xfs_bmbt_update(cur, new.br_startoff, new.br_startblock,
-			        new.br_blockcount, new.br_state);
+	error = xfs_bmbt_update(cur, &new);
 	if (error)
 		return error;
 
 done:
-	xfs_iext_update_extent(ifp, current_ext - 1, &new);
-	xfs_iext_remove(ip, current_ext, 1, 0);
+	xfs_iext_remove(ip, icur, 0);
+	xfs_iext_prev(XFS_IFORK_PTR(ip, whichfork), icur);
+	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), icur,
+			&new);
 
 	/* update reverse mapping. rmap functions merge the rmaps for us */
 	error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, got);
@@ -5951,183 +5569,83 @@ done:
 	return xfs_rmap_map_extent(mp, dfops, ip, whichfork, &new);
 }
 
-/*
- * Shift a single extent.
- */
-STATIC int
-xfs_bmse_shift_one(
-	struct xfs_inode		*ip,
-	int				whichfork,
-	xfs_fileoff_t			offset_shift_fsb,
-	int				*current_ext,
-	struct xfs_bmbt_irec		*got,
-	struct xfs_btree_cur		*cur,
-	int				*logflags,
-	enum shift_direction		direction,
-	struct xfs_defer_ops		*dfops)
+static int
+xfs_bmap_shift_update_extent(
+	struct xfs_inode	*ip,
+	int			whichfork,
+	struct xfs_iext_cursor	*icur,
+	struct xfs_bmbt_irec	*got,
+	struct xfs_btree_cur	*cur,
+	int			*logflags,
+	struct xfs_defer_ops	*dfops,
+	xfs_fileoff_t		startoff)
 {
-	struct xfs_ifork		*ifp;
-	struct xfs_mount		*mp;
-	xfs_fileoff_t			startoff;
-	struct xfs_bmbt_irec		adj_irec, new;
-	int				error;
-	int				i;
-	int				total_extents;
-
-	mp = ip->i_mount;
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-	total_extents = xfs_iext_count(ifp);
-
-	/* delalloc extents should be prevented by caller */
-	XFS_WANT_CORRUPTED_RETURN(mp, !isnullstartblock(got->br_startblock));
-
-	if (direction == SHIFT_LEFT) {
-		startoff = got->br_startoff - offset_shift_fsb;
-
-		/*
-		 * Check for merge if we've got an extent to the left,
-		 * otherwise make sure there's enough room at the start
-		 * of the file for the shift.
-		 */
-		if (!*current_ext) {
-			if (got->br_startoff < offset_shift_fsb)
-				return -EINVAL;
-			goto update_current_ext;
-		}
-
-		/*
-		 * grab the left extent and check for a large enough hole.
-		 */
-		xfs_iext_get_extent(ifp, *current_ext - 1, &adj_irec);
-		if (startoff < adj_irec.br_startoff + adj_irec.br_blockcount)
-			return -EINVAL;
-
-		/* check whether to merge the extent or shift it down */
-		if (xfs_bmse_can_merge(&adj_irec, got, offset_shift_fsb)) {
-			return xfs_bmse_merge(ip, whichfork, offset_shift_fsb,
-					      *current_ext, got, &adj_irec,
-					      cur, logflags, dfops);
-		}
-	} else {
-		startoff = got->br_startoff + offset_shift_fsb;
-		/* nothing to move if this is the last extent */
-		if (*current_ext >= (total_extents - 1))
-			goto update_current_ext;
-
-		/*
-		 * If this is not the last extent in the file, make sure there
-		 * is enough room between current extent and next extent for
-		 * accommodating the shift.
-		 */
-		xfs_iext_get_extent(ifp, *current_ext + 1, &adj_irec);
-		if (startoff + got->br_blockcount > adj_irec.br_startoff)
-			return -EINVAL;
-
-		/*
-		 * Unlike a left shift (which involves a hole punch),
-		 * a right shift does not modify extent neighbors
-		 * in any way. We should never find mergeable extents
-		 * in this scenario. Check anyways and warn if we
-		 * encounter two extents that could be one.
-		 */
-		if (xfs_bmse_can_merge(got, &adj_irec, offset_shift_fsb))
-			WARN_ON_ONCE(1);
-	}
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_bmbt_irec	prev = *got;
+	int			error, i;
 
-	/*
-	 * Increment the extent index for the next iteration, update the start
-	 * offset of the in-core extent and update the btree if applicable.
-	 */
-update_current_ext:
 	*logflags |= XFS_ILOG_CORE;
 
-	new = *got;
-	new.br_startoff = startoff;
+	got->br_startoff = startoff;
 
 	if (cur) {
-		error = xfs_bmbt_lookup_eq(cur, got->br_startoff,
-				got->br_startblock, got->br_blockcount, &i);
+		error = xfs_bmbt_lookup_eq(cur, &prev, &i);
 		if (error)
 			return error;
 		XFS_WANT_CORRUPTED_RETURN(mp, i == 1);
 
-		error = xfs_bmbt_update(cur, new.br_startoff,
-				new.br_startblock, new.br_blockcount,
-				new.br_state);
+		error = xfs_bmbt_update(cur, got);
 		if (error)
 			return error;
 	} else {
 		*logflags |= XFS_ILOG_DEXT;
 	}
 
-	xfs_iext_update_extent(ifp, *current_ext, &new);
-
-	if (direction == SHIFT_LEFT)
-		(*current_ext)++;
-	else
-		(*current_ext)--;
+	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), icur,
+			got);
 
 	/* update reverse mapping */
-	error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, got);
+	error = xfs_rmap_unmap_extent(mp, dfops, ip, whichfork, &prev);
 	if (error)
 		return error;
-	return xfs_rmap_map_extent(mp, dfops, ip, whichfork, &new);
+	return xfs_rmap_map_extent(mp, dfops, ip, whichfork, got);
 }
 
-/*
- * Shift extent records to the left/right to cover/create a hole.
- *
- * The maximum number of extents to be shifted in a single operation is
- * @num_exts. @stop_fsb specifies the file offset at which to stop shift and the
- * file offset where we've left off is returned in @next_fsb. @offset_shift_fsb
- * is the length by which each extent is shifted. If there is no hole to shift
- * the extents into, this will be considered invalid operation and we abort
- * immediately.
- */
 int
-xfs_bmap_shift_extents(
+xfs_bmap_collapse_extents(
 	struct xfs_trans	*tp,
 	struct xfs_inode	*ip,
 	xfs_fileoff_t		*next_fsb,
 	xfs_fileoff_t		offset_shift_fsb,
-	int			*done,
+	bool			*done,
 	xfs_fileoff_t		stop_fsb,
 	xfs_fsblock_t		*firstblock,
-	struct xfs_defer_ops	*dfops,
-	enum shift_direction	direction,
-	int			num_exts)
+	struct xfs_defer_ops	*dfops)
 {
-	struct xfs_btree_cur		*cur = NULL;
-	struct xfs_bmbt_irec            got;
-	struct xfs_mount		*mp = ip->i_mount;
-	struct xfs_ifork		*ifp;
-	xfs_extnum_t			nexts = 0;
-	xfs_extnum_t			current_ext;
-	xfs_extnum_t			total_extents;
-	xfs_extnum_t			stop_extent;
-	int				error = 0;
-	int				whichfork = XFS_DATA_FORK;
-	int				logflags = 0;
+	int			whichfork = XFS_DATA_FORK;
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	struct xfs_btree_cur	*cur = NULL;
+	struct xfs_bmbt_irec	got, prev;
+	struct xfs_iext_cursor	icur;
+	xfs_fileoff_t		new_startoff;
+	int			error = 0;
+	int			logflags = 0;
 
 	if (unlikely(XFS_TEST_ERROR(
 	    (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
 	     XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
 	     mp, XFS_ERRTAG_BMAPIFORMAT))) {
-		XFS_ERROR_REPORT("xfs_bmap_shift_extents",
-				 XFS_ERRLEVEL_LOW, mp);
+		XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp);
 		return -EFSCORRUPTED;
 	}
 
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return -EIO;
 
-	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-	ASSERT(direction == SHIFT_LEFT || direction == SHIFT_RIGHT);
+	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));
 
-	ifp = XFS_IFORK_PTR(ip, whichfork);
 	if (!(ifp->if_flags & XFS_IFEXTENTS)) {
-		/* Read in all the extents */
 		error = xfs_iread_extents(tp, ip, whichfork);
 		if (error)
 			return error;
@@ -6140,107 +5658,165 @@ xfs_bmap_shift_extents(
 		cur->bc_private.b.flags = 0;
 	}
 
-	/*
-	 * There may be delalloc extents in the data fork before the range we
-	 * are collapsing out, so we cannot use the count of real extents here.
-	 * Instead we have to calculate it from the incore fork.
-	 */
-	total_extents = xfs_iext_count(ifp);
-	if (total_extents == 0) {
-		*done = 1;
+	if (!xfs_iext_lookup_extent(ip, ifp, *next_fsb, &icur, &got)) {
+		*done = true;
 		goto del_cursor;
 	}
+	XFS_WANT_CORRUPTED_RETURN(mp, !isnullstartblock(got.br_startblock));
 
-	/*
-	 * In case of first right shift, we need to initialize next_fsb
-	 */
-	if (*next_fsb == NULLFSBLOCK) {
-		ASSERT(direction == SHIFT_RIGHT);
-
-		current_ext = total_extents - 1;
-		xfs_iext_get_extent(ifp, current_ext, &got);
-		if (stop_fsb > got.br_startoff) {
-			*done = 1;
+	new_startoff = got.br_startoff - offset_shift_fsb;
+	if (xfs_iext_peek_prev_extent(ifp, &icur, &prev)) {
+		if (new_startoff < prev.br_startoff + prev.br_blockcount) {
+			error = -EINVAL;
 			goto del_cursor;
 		}
-		*next_fsb = got.br_startoff;
+
+		if (xfs_bmse_can_merge(&prev, &got, offset_shift_fsb)) {
+			error = xfs_bmse_merge(ip, whichfork, offset_shift_fsb,
+					&icur, &got, &prev, cur, &logflags,
+					dfops);
+			if (error)
+				goto del_cursor;
+			goto done;
+		}
 	} else {
-		/*
-		 * Look up the extent index for the fsb where we start shifting. We can
-		 * henceforth iterate with current_ext as extent list changes are locked
-		 * out via ilock.
-		 *
-		 * If next_fsb lies in a hole beyond which there are no extents we are
-		 * done.
-		 */
-		if (!xfs_iext_lookup_extent(ip, ifp, *next_fsb, &current_ext,
-				&got)) {
-			*done = 1;
+		if (got.br_startoff < offset_shift_fsb) {
+			error = -EINVAL;
 			goto del_cursor;
 		}
 	}
 
-	/* Lookup the extent index at which we have to stop */
-	if (direction == SHIFT_RIGHT) {
-		struct xfs_bmbt_irec s;
+	error = xfs_bmap_shift_update_extent(ip, whichfork, &icur, &got, cur,
+			&logflags, dfops, new_startoff);
+	if (error)
+		goto del_cursor;
+
+done:
+	if (!xfs_iext_next_extent(ifp, &icur, &got)) {
+		*done = true;
+		goto del_cursor;
+	}
 
-		xfs_iext_lookup_extent(ip, ifp, stop_fsb, &stop_extent, &s);
-		/* Make stop_extent exclusive of shift range */
-		stop_extent--;
-		if (current_ext <= stop_extent) {
-			error = -EIO;
+	*next_fsb = got.br_startoff;
+del_cursor:
+	if (cur)
+		xfs_btree_del_cursor(cur,
+			error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
+	if (logflags)
+		xfs_trans_log_inode(tp, ip, logflags);
+	return error;
+}
+
+int
+xfs_bmap_insert_extents(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	xfs_fileoff_t		*next_fsb,
+	xfs_fileoff_t		offset_shift_fsb,
+	bool			*done,
+	xfs_fileoff_t		stop_fsb,
+	xfs_fsblock_t		*firstblock,
+	struct xfs_defer_ops	*dfops)
+{
+	int			whichfork = XFS_DATA_FORK;
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	struct xfs_btree_cur	*cur = NULL;
+	struct xfs_bmbt_irec	got, next;
+	struct xfs_iext_cursor	icur;
+	xfs_fileoff_t		new_startoff;
+	int			error = 0;
+	int			logflags = 0;
+
+	if (unlikely(XFS_TEST_ERROR(
+	    (XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+	     XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE),
+	     mp, XFS_ERRTAG_BMAPIFORMAT))) {
+		XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, mp);
+		return -EFSCORRUPTED;
+	}
+
+	if (XFS_FORCED_SHUTDOWN(mp))
+		return -EIO;
+
+	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL | XFS_ILOCK_EXCL));
+
+	if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+		error = xfs_iread_extents(tp, ip, whichfork);
+		if (error)
+			return error;
+	}
+
+	if (ifp->if_flags & XFS_IFBROOT) {
+		cur = xfs_bmbt_init_cursor(mp, tp, ip, whichfork);
+		cur->bc_private.b.firstblock = *firstblock;
+		cur->bc_private.b.dfops = dfops;
+		cur->bc_private.b.flags = 0;
+	}
+
+	if (*next_fsb == NULLFSBLOCK) {
+		xfs_iext_last(ifp, &icur);
+		if (!xfs_iext_get_extent(ifp, &icur, &got) ||
+		    stop_fsb > got.br_startoff) {
+			*done = true;
 			goto del_cursor;
 		}
 	} else {
-		stop_extent = total_extents;
-		if (current_ext >= stop_extent) {
-			error = -EIO;
+		if (!xfs_iext_lookup_extent(ip, ifp, *next_fsb, &icur, &got)) {
+			*done = true;
 			goto del_cursor;
 		}
 	}
+	XFS_WANT_CORRUPTED_RETURN(mp, !isnullstartblock(got.br_startblock));
 
-	while (nexts++ < num_exts) {
-		error = xfs_bmse_shift_one(ip, whichfork, offset_shift_fsb,
-					   &current_ext, &got, cur, &logflags,
-					   direction, dfops);
-		if (error)
+	if (stop_fsb >= got.br_startoff + got.br_blockcount) {
+		error = -EIO;
+		goto del_cursor;
+	}
+
+	new_startoff = got.br_startoff + offset_shift_fsb;
+	if (xfs_iext_peek_next_extent(ifp, &icur, &next)) {
+		if (new_startoff + got.br_blockcount > next.br_startoff) {
+			error = -EINVAL;
 			goto del_cursor;
-		/*
-		 * If there was an extent merge during the shift, the extent
-		 * count can change. Update the total and grade the next record.
-		 */
-		if (direction == SHIFT_LEFT) {
-			total_extents = xfs_iext_count(ifp);
-			stop_extent = total_extents;
 		}
 
-		if (current_ext == stop_extent) {
-			*done = 1;
-			*next_fsb = NULLFSBLOCK;
-			break;
-		}
-		xfs_iext_get_extent(ifp, current_ext, &got);
+		/*
+		 * Unlike a left shift (which involves a hole punch), a right
+		 * shift does not modify extent neighbors in any way.  We should
+		 * never find mergeable extents in this scenario.  Check anyways
+		 * and warn if we encounter two extents that could be one.
+		 */
+		if (xfs_bmse_can_merge(&got, &next, offset_shift_fsb))
+			WARN_ON_ONCE(1);
 	}
 
-	if (!*done)
-		*next_fsb = got.br_startoff;
+	error = xfs_bmap_shift_update_extent(ip, whichfork, &icur, &got, cur,
+			&logflags, dfops, new_startoff);
+	if (error)
+		goto del_cursor;
+
+	if (!xfs_iext_prev_extent(ifp, &icur, &got) ||
+	    stop_fsb >= got.br_startoff + got.br_blockcount) {
+		*done = true;
+		goto del_cursor;
+	}
 
+	*next_fsb = got.br_startoff;
 del_cursor:
 	if (cur)
 		xfs_btree_del_cursor(cur,
 			error ? XFS_BTREE_ERROR : XFS_BTREE_NOERROR);
-
 	if (logflags)
 		xfs_trans_log_inode(tp, ip, logflags);
-
 	return error;
 }
 
 /*
- * Splits an extent into two extents at split_fsb block such that it is
- * the first block of the current_ext. @current_ext is a target extent
- * to be split. @split_fsb is a block where the extents is split.
- * If split_fsb lies in a hole or the first block of extents, just return 0.
+ * Splits an extent into two extents at split_fsb block such that it is the
+ * first block of the current_ext. @ext is a target extent to be split.
+ * @split_fsb is a block where the extents is split.  If split_fsb lies in a
+ * hole or the first block of extents, just return 0.
  */
 STATIC int
 xfs_bmap_split_extent_at(
@@ -6257,7 +5833,7 @@ xfs_bmap_split_extent_at(
 	struct xfs_mount		*mp = ip->i_mount;
 	struct xfs_ifork		*ifp;
 	xfs_fsblock_t			gotblkcnt; /* new block count for got */
-	xfs_extnum_t			current_ext;
+	struct xfs_iext_cursor		icur;
 	int				error = 0;
 	int				logflags = 0;
 	int				i = 0;
@@ -6285,7 +5861,7 @@ xfs_bmap_split_extent_at(
 	/*
 	 * If there are not extents, or split_fsb lies in a hole we are done.
 	 */
-	if (!xfs_iext_lookup_extent(ip, ifp, split_fsb, &current_ext, &got) ||
+	if (!xfs_iext_lookup_extent(ip, ifp, split_fsb, &icur, &got) ||
 	    got.br_startoff >= split_fsb)
 		return 0;
 
@@ -6300,44 +5876,35 @@ xfs_bmap_split_extent_at(
 		cur->bc_private.b.firstblock = *firstfsb;
 		cur->bc_private.b.dfops = dfops;
 		cur->bc_private.b.flags = 0;
-		error = xfs_bmbt_lookup_eq(cur, got.br_startoff,
-				got.br_startblock,
-				got.br_blockcount,
-				&i);
+		error = xfs_bmbt_lookup_eq(cur, &got, &i);
 		if (error)
 			goto del_cursor;
 		XFS_WANT_CORRUPTED_GOTO(mp, i == 1, del_cursor);
 	}
 
 	got.br_blockcount = gotblkcnt;
-	xfs_iext_update_extent(ifp, current_ext, &got);
+	xfs_iext_update_extent(ip, xfs_bmap_fork_to_state(whichfork), &icur,
+			&got);
 
 	logflags = XFS_ILOG_CORE;
 	if (cur) {
-		error = xfs_bmbt_update(cur, got.br_startoff,
-				got.br_startblock,
-				got.br_blockcount,
-				got.br_state);
+		error = xfs_bmbt_update(cur, &got);
 		if (error)
 			goto del_cursor;
 	} else
 		logflags |= XFS_ILOG_DEXT;
 
 	/* Add new extent */
-	current_ext++;
-	xfs_iext_insert(ip, current_ext, 1, &new, 0);
+	xfs_iext_next(ifp, &icur);
+	xfs_iext_insert(ip, &icur, &new, 0);
 	XFS_IFORK_NEXT_SET(ip, whichfork,
 			   XFS_IFORK_NEXTENTS(ip, whichfork) + 1);
 
 	if (cur) {
-		error = xfs_bmbt_lookup_eq(cur, new.br_startoff,
-				new.br_startblock, new.br_blockcount,
-				&i);
+		error = xfs_bmbt_lookup_eq(cur, &new, &i);
 		if (error)
 			goto del_cursor;
 		XFS_WANT_CORRUPTED_GOTO(mp, i == 0, del_cursor);
-		cur->bc_rec.b.br_state = new.br_state;
-
 		error = xfs_btree_insert(cur, &i);
 		if (error)
 			goto del_cursor;
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index 851982a5dfbc..e36d75799cd5 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -43,7 +43,7 @@ struct xfs_bmalloca {
 	xfs_fsblock_t		blkno;	/* starting block of new extent */
 
 	struct xfs_btree_cur	*cur;	/* btree cursor */
-	xfs_extnum_t		idx;	/* current extent index */
+	struct xfs_iext_cursor	icur;	/* incore extent cursor */
 	int			nallocs;/* number of extents alloc'd */
 	int			logflags;/* flags for transaction logging */
 
@@ -113,6 +113,9 @@ struct xfs_extent_free_item
 /* Only convert delalloc space, don't allocate entirely new extents */
 #define XFS_BMAPI_DELALLOC	0x400
 
+/* Only convert unwritten extents, don't allocate new blocks */
+#define XFS_BMAPI_CONVERT_ONLY	0x800
+
 #define XFS_BMAPI_FLAGS \
 	{ XFS_BMAPI_ENTIRE,	"ENTIRE" }, \
 	{ XFS_BMAPI_METADATA,	"METADATA" }, \
@@ -124,7 +127,8 @@ struct xfs_extent_free_item
 	{ XFS_BMAPI_ZERO,	"ZERO" }, \
 	{ XFS_BMAPI_REMAP,	"REMAP" }, \
 	{ XFS_BMAPI_COWFORK,	"COWFORK" }, \
-	{ XFS_BMAPI_DELALLOC,	"DELALLOC" }
+	{ XFS_BMAPI_DELALLOC,	"DELALLOC" }, \
+	{ XFS_BMAPI_CONVERT_ONLY, "CONVERT_ONLY" }
 
 
 static inline int xfs_bmapi_aflag(int w)
@@ -183,31 +187,9 @@ static inline bool xfs_bmap_is_real_extent(struct xfs_bmbt_irec *irec)
 		!isnullstartblock(irec->br_startblock);
 }
 
-/*
- * This macro is used to determine how many extents will be shifted
- * in one write transaction. We could require two splits,
- * an extent move on the first and an extent merge on the second,
- * So it is proper that one extent is shifted inside write transaction
- * at a time.
- */
-#define XFS_BMAP_MAX_SHIFT_EXTENTS	1
-
-enum shift_direction {
-	SHIFT_LEFT = 0,
-	SHIFT_RIGHT,
-};
-
-#ifdef DEBUG
-void	xfs_bmap_trace_exlist(struct xfs_inode *ip, xfs_extnum_t cnt,
-		int whichfork, unsigned long caller_ip);
-#define	XFS_BMAP_TRACE_EXLIST(ip,c,w)	\
-	xfs_bmap_trace_exlist(ip,c,w, _THIS_IP_)
-#else
-#define	XFS_BMAP_TRACE_EXLIST(ip,c,w)
-#endif
-
 void	xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno,
 		xfs_filblks_t len);
+void	xfs_trim_extent_eof(struct xfs_bmbt_irec *, struct xfs_inode *);
 int	xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd);
 void	xfs_bmap_local_to_extents_empty(struct xfs_inode *ip, int whichfork);
 void	xfs_bmap_add_free(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
@@ -221,8 +203,6 @@ int	xfs_bmap_last_before(struct xfs_trans *tp, struct xfs_inode *ip,
 int	xfs_bmap_last_offset(struct xfs_inode *ip, xfs_fileoff_t *unused,
 		int whichfork);
 int	xfs_bmap_one_block(struct xfs_inode *ip, int whichfork);
-int	xfs_bmap_read_extents(struct xfs_trans *tp, struct xfs_inode *ip,
-		int whichfork);
 int	xfs_bmapi_read(struct xfs_inode *ip, xfs_fileoff_t bno,
 		xfs_filblks_t len, struct xfs_bmbt_irec *mval,
 		int *nmap, int flags);
@@ -240,20 +220,25 @@ int	xfs_bunmapi(struct xfs_trans *tp, struct xfs_inode *ip,
 		xfs_extnum_t nexts, xfs_fsblock_t *firstblock,
 		struct xfs_defer_ops *dfops, int *done);
 int	xfs_bmap_del_extent_delay(struct xfs_inode *ip, int whichfork,
-		xfs_extnum_t *idx, struct xfs_bmbt_irec *got,
+		struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *got,
+		struct xfs_bmbt_irec *del);
+void	xfs_bmap_del_extent_cow(struct xfs_inode *ip,
+		struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *got,
 		struct xfs_bmbt_irec *del);
-void	xfs_bmap_del_extent_cow(struct xfs_inode *ip, xfs_extnum_t *idx,
-		struct xfs_bmbt_irec *got, struct xfs_bmbt_irec *del);
 uint	xfs_default_attroffset(struct xfs_inode *ip);
-int	xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip,
+int	xfs_bmap_collapse_extents(struct xfs_trans *tp, struct xfs_inode *ip,
+		xfs_fileoff_t *next_fsb, xfs_fileoff_t offset_shift_fsb,
+		bool *done, xfs_fileoff_t stop_fsb, xfs_fsblock_t *firstblock,
+		struct xfs_defer_ops *dfops);
+int	xfs_bmap_insert_extents(struct xfs_trans *tp, struct xfs_inode *ip,
 		xfs_fileoff_t *next_fsb, xfs_fileoff_t offset_shift_fsb,
-		int *done, xfs_fileoff_t stop_fsb, xfs_fsblock_t *firstblock,
-		struct xfs_defer_ops *dfops, enum shift_direction direction,
-		int num_exts);
+		bool *done, xfs_fileoff_t stop_fsb, xfs_fsblock_t *firstblock,
+		struct xfs_defer_ops *dfops);
 int	xfs_bmap_split_extent(struct xfs_inode *ip, xfs_fileoff_t split_offset);
 int	xfs_bmapi_reserve_delalloc(struct xfs_inode *ip, int whichfork,
 		xfs_fileoff_t off, xfs_filblks_t len, xfs_filblks_t prealloc,
-		struct xfs_bmbt_irec *got, xfs_extnum_t *lastx, int eof);
+		struct xfs_bmbt_irec *got, struct xfs_iext_cursor *cur,
+		int eof);
 
 enum xfs_bmap_intent_type {
 	XFS_BMAP_MAP = 1,
@@ -277,4 +262,16 @@ int	xfs_bmap_map_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
 int	xfs_bmap_unmap_extent(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
 		struct xfs_inode *ip, struct xfs_bmbt_irec *imap);
 
+static inline int xfs_bmap_fork_to_state(int whichfork)
+{
+	switch (whichfork) {
+	case XFS_ATTR_FORK:
+		return BMAP_ATTRFORK;
+	case XFS_COW_FORK:
+		return BMAP_COWFORK;
+	default:
+		return 0;
+	}
+}
+
 #endif	/* __XFS_BMAP_H__ */
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c
index a6331ffa51e3..c10aecaaae44 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.c
+++ b/fs/xfs/libxfs/xfs_bmap_btree.c
@@ -38,22 +38,6 @@
 #include "xfs_rmap.h"
 
 /*
- * Determine the extent state.
- */
-/* ARGSUSED */
-STATIC xfs_exntst_t
-xfs_extent_state(
-	xfs_filblks_t		blks,
-	int			extent_flag)
-{
-	if (extent_flag) {
-		ASSERT(blks != 0);	/* saved for DMIG */
-		return XFS_EXT_UNWRITTEN;
-	}
-	return XFS_EXT_NORM;
-}
-
-/*
  * Convert on-disk form of btree root to in-memory form.
  */
 void
@@ -87,84 +71,21 @@ xfs_bmdr_to_bmbt(
 	memcpy(tpp, fpp, sizeof(*fpp) * dmxr);
 }
 
-/*
- * Convert a compressed bmap extent record to an uncompressed form.
- * This code must be in sync with the routines xfs_bmbt_get_startoff,
- * xfs_bmbt_get_startblock, xfs_bmbt_get_blockcount and xfs_bmbt_get_state.
- */
-STATIC void
-__xfs_bmbt_get_all(
-		uint64_t l0,
-		uint64_t l1,
-		xfs_bmbt_irec_t *s)
-{
-	int	ext_flag;
-	xfs_exntst_t st;
-
-	ext_flag = (int)(l0 >> (64 - BMBT_EXNTFLAG_BITLEN));
-	s->br_startoff = ((xfs_fileoff_t)l0 &
-			   xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
-	s->br_startblock = (((xfs_fsblock_t)l0 & xfs_mask64lo(9)) << 43) |
-			   (((xfs_fsblock_t)l1) >> 21);
-	s->br_blockcount = (xfs_filblks_t)(l1 & xfs_mask64lo(21));
-	/* This is xfs_extent_state() in-line */
-	if (ext_flag) {
-		ASSERT(s->br_blockcount != 0);	/* saved for DMIG */
-		st = XFS_EXT_UNWRITTEN;
-	} else
-		st = XFS_EXT_NORM;
-	s->br_state = st;
-}
-
 void
-xfs_bmbt_get_all(
-	xfs_bmbt_rec_host_t *r,
-	xfs_bmbt_irec_t *s)
-{
-	__xfs_bmbt_get_all(r->l0, r->l1, s);
-}
-
-/*
- * Extract the blockcount field from an in memory bmap extent record.
- */
-xfs_filblks_t
-xfs_bmbt_get_blockcount(
-	xfs_bmbt_rec_host_t	*r)
-{
-	return (xfs_filblks_t)(r->l1 & xfs_mask64lo(21));
-}
-
-/*
- * Extract the startblock field from an in memory bmap extent record.
- */
-xfs_fsblock_t
-xfs_bmbt_get_startblock(
-	xfs_bmbt_rec_host_t	*r)
-{
-	return (((xfs_fsblock_t)r->l0 & xfs_mask64lo(9)) << 43) |
-	       (((xfs_fsblock_t)r->l1) >> 21);
-}
-
-/*
- * Extract the startoff field from an in memory bmap extent record.
- */
-xfs_fileoff_t
-xfs_bmbt_get_startoff(
-	xfs_bmbt_rec_host_t	*r)
-{
-	return ((xfs_fileoff_t)r->l0 &
-		 xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
-}
-
-xfs_exntst_t
-xfs_bmbt_get_state(
-	xfs_bmbt_rec_host_t	*r)
-{
-	int	ext_flag;
-
-	ext_flag = (int)((r->l0) >> (64 - BMBT_EXNTFLAG_BITLEN));
-	return xfs_extent_state(xfs_bmbt_get_blockcount(r),
-				ext_flag);
+xfs_bmbt_disk_get_all(
+	struct xfs_bmbt_rec	*rec,
+	struct xfs_bmbt_irec	*irec)
+{
+	uint64_t		l0 = get_unaligned_be64(&rec->l0);
+	uint64_t		l1 = get_unaligned_be64(&rec->l1);
+
+	irec->br_startoff = (l0 & xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
+	irec->br_startblock = ((l0 & xfs_mask64lo(9)) << 43) | (l1 >> 21);
+	irec->br_blockcount = l1 & xfs_mask64lo(21);
+	if (l0 >> (64 - BMBT_EXNTFLAG_BITLEN))
+		irec->br_state = XFS_EXT_UNWRITTEN;
+	else
+		irec->br_state = XFS_EXT_NORM;
 }
 
 /*
@@ -188,142 +109,29 @@ xfs_bmbt_disk_get_startoff(
 		 xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN)) >> 9;
 }
 
-
-/*
- * Set all the fields in a bmap extent record from the arguments.
- */
-void
-xfs_bmbt_set_allf(
-	xfs_bmbt_rec_host_t	*r,
-	xfs_fileoff_t		startoff,
-	xfs_fsblock_t		startblock,
-	xfs_filblks_t		blockcount,
-	xfs_exntst_t		state)
-{
-	int		extent_flag = (state == XFS_EXT_NORM) ? 0 : 1;
-
-	ASSERT(state == XFS_EXT_NORM || state == XFS_EXT_UNWRITTEN);
-	ASSERT((startoff & xfs_mask64hi(64-BMBT_STARTOFF_BITLEN)) == 0);
-	ASSERT((blockcount & xfs_mask64hi(64-BMBT_BLOCKCOUNT_BITLEN)) == 0);
-
-	ASSERT((startblock & xfs_mask64hi(64-BMBT_STARTBLOCK_BITLEN)) == 0);
-
-	r->l0 = ((xfs_bmbt_rec_base_t)extent_flag << 63) |
-		((xfs_bmbt_rec_base_t)startoff << 9) |
-		((xfs_bmbt_rec_base_t)startblock >> 43);
-	r->l1 = ((xfs_bmbt_rec_base_t)startblock << 21) |
-		((xfs_bmbt_rec_base_t)blockcount &
-		(xfs_bmbt_rec_base_t)xfs_mask64lo(21));
-}
-
 /*
  * Set all the fields in a bmap extent record from the uncompressed form.
  */
 void
-xfs_bmbt_set_all(
-	xfs_bmbt_rec_host_t *r,
-	xfs_bmbt_irec_t	*s)
-{
-	xfs_bmbt_set_allf(r, s->br_startoff, s->br_startblock,
-			     s->br_blockcount, s->br_state);
-}
-
-
-/*
- * Set all the fields in a disk format bmap extent record from the arguments.
- */
-void
-xfs_bmbt_disk_set_allf(
-	xfs_bmbt_rec_t		*r,
-	xfs_fileoff_t		startoff,
-	xfs_fsblock_t		startblock,
-	xfs_filblks_t		blockcount,
-	xfs_exntst_t		state)
-{
-	int			extent_flag = (state == XFS_EXT_NORM) ? 0 : 1;
-
-	ASSERT(state == XFS_EXT_NORM || state == XFS_EXT_UNWRITTEN);
-	ASSERT((startoff & xfs_mask64hi(64-BMBT_STARTOFF_BITLEN)) == 0);
-	ASSERT((blockcount & xfs_mask64hi(64-BMBT_BLOCKCOUNT_BITLEN)) == 0);
-	ASSERT((startblock & xfs_mask64hi(64-BMBT_STARTBLOCK_BITLEN)) == 0);
-
-	r->l0 = cpu_to_be64(
-		((xfs_bmbt_rec_base_t)extent_flag << 63) |
-		 ((xfs_bmbt_rec_base_t)startoff << 9) |
-		 ((xfs_bmbt_rec_base_t)startblock >> 43));
-	r->l1 = cpu_to_be64(
-		((xfs_bmbt_rec_base_t)startblock << 21) |
-		 ((xfs_bmbt_rec_base_t)blockcount &
-		  (xfs_bmbt_rec_base_t)xfs_mask64lo(21)));
-}
-
-/*
- * Set all the fields in a bmap extent record from the uncompressed form.
- */
-STATIC void
 xfs_bmbt_disk_set_all(
-	xfs_bmbt_rec_t	*r,
-	xfs_bmbt_irec_t *s)
-{
-	xfs_bmbt_disk_set_allf(r, s->br_startoff, s->br_startblock,
-				  s->br_blockcount, s->br_state);
-}
-
-/*
- * Set the blockcount field in a bmap extent record.
- */
-void
-xfs_bmbt_set_blockcount(
-	xfs_bmbt_rec_host_t *r,
-	xfs_filblks_t	v)
+	struct xfs_bmbt_rec	*r,
+	struct xfs_bmbt_irec	*s)
 {
-	ASSERT((v & xfs_mask64hi(43)) == 0);
-	r->l1 = (r->l1 & (xfs_bmbt_rec_base_t)xfs_mask64hi(43)) |
-		  (xfs_bmbt_rec_base_t)(v & xfs_mask64lo(21));
-}
-
-/*
- * Set the startblock field in a bmap extent record.
- */
-void
-xfs_bmbt_set_startblock(
-	xfs_bmbt_rec_host_t *r,
-	xfs_fsblock_t	v)
-{
-	ASSERT((v & xfs_mask64hi(12)) == 0);
-	r->l0 = (r->l0 & (xfs_bmbt_rec_base_t)xfs_mask64hi(55)) |
-		  (xfs_bmbt_rec_base_t)(v >> 43);
-	r->l1 = (r->l1 & (xfs_bmbt_rec_base_t)xfs_mask64lo(21)) |
-		  (xfs_bmbt_rec_base_t)(v << 21);
-}
+	int			extent_flag = (s->br_state != XFS_EXT_NORM);
 
-/*
- * Set the startoff field in a bmap extent record.
- */
-void
-xfs_bmbt_set_startoff(
-	xfs_bmbt_rec_host_t *r,
-	xfs_fileoff_t	v)
-{
-	ASSERT((v & xfs_mask64hi(9)) == 0);
-	r->l0 = (r->l0 & (xfs_bmbt_rec_base_t) xfs_mask64hi(1)) |
-		((xfs_bmbt_rec_base_t)v << 9) |
-		  (r->l0 & (xfs_bmbt_rec_base_t)xfs_mask64lo(9));
-}
+	ASSERT(s->br_state == XFS_EXT_NORM || s->br_state == XFS_EXT_UNWRITTEN);
+	ASSERT(!(s->br_startoff & xfs_mask64hi(64-BMBT_STARTOFF_BITLEN)));
+	ASSERT(!(s->br_blockcount & xfs_mask64hi(64-BMBT_BLOCKCOUNT_BITLEN)));
+	ASSERT(!(s->br_startblock & xfs_mask64hi(64-BMBT_STARTBLOCK_BITLEN)));
 
-/*
- * Set the extent state field in a bmap extent record.
- */
-void
-xfs_bmbt_set_state(
-	xfs_bmbt_rec_host_t *r,
-	xfs_exntst_t	v)
-{
-	ASSERT(v == XFS_EXT_NORM || v == XFS_EXT_UNWRITTEN);
-	if (v == XFS_EXT_NORM)
-		r->l0 &= xfs_mask64lo(64 - BMBT_EXNTFLAG_BITLEN);
-	else
-		r->l0 |= xfs_mask64hi(BMBT_EXNTFLAG_BITLEN);
+	put_unaligned_be64(
+		((xfs_bmbt_rec_base_t)extent_flag << 63) |
+		 ((xfs_bmbt_rec_base_t)s->br_startoff << 9) |
+		 ((xfs_bmbt_rec_base_t)s->br_startblock >> 43), &r->l0);
+	put_unaligned_be64(
+		((xfs_bmbt_rec_base_t)s->br_startblock << 21) |
+		 ((xfs_bmbt_rec_base_t)s->br_blockcount &
+		  (xfs_bmbt_rec_base_t)xfs_mask64lo(21)), &r->l1);
 }
 
 /*
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.h b/fs/xfs/libxfs/xfs_bmap_btree.h
index 9da5a8d4f184..135b8c56d23e 100644
--- a/fs/xfs/libxfs/xfs_bmap_btree.h
+++ b/fs/xfs/libxfs/xfs_bmap_btree.h
@@ -98,25 +98,11 @@ struct xfs_trans;
  */
 extern void xfs_bmdr_to_bmbt(struct xfs_inode *, xfs_bmdr_block_t *, int,
 			struct xfs_btree_block *, int);
-extern void xfs_bmbt_get_all(xfs_bmbt_rec_host_t *r, xfs_bmbt_irec_t *s);
-extern xfs_filblks_t xfs_bmbt_get_blockcount(xfs_bmbt_rec_host_t *r);
-extern xfs_fsblock_t xfs_bmbt_get_startblock(xfs_bmbt_rec_host_t *r);
-extern xfs_fileoff_t xfs_bmbt_get_startoff(xfs_bmbt_rec_host_t *r);
-extern xfs_exntst_t xfs_bmbt_get_state(xfs_bmbt_rec_host_t *r);
 
+void xfs_bmbt_disk_set_all(struct xfs_bmbt_rec *r, struct xfs_bmbt_irec *s);
 extern xfs_filblks_t xfs_bmbt_disk_get_blockcount(xfs_bmbt_rec_t *r);
 extern xfs_fileoff_t xfs_bmbt_disk_get_startoff(xfs_bmbt_rec_t *r);
-
-extern void xfs_bmbt_set_all(xfs_bmbt_rec_host_t *r, xfs_bmbt_irec_t *s);
-extern void xfs_bmbt_set_allf(xfs_bmbt_rec_host_t *r, xfs_fileoff_t o,
-			xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v);
-extern void xfs_bmbt_set_blockcount(xfs_bmbt_rec_host_t *r, xfs_filblks_t v);
-extern void xfs_bmbt_set_startblock(xfs_bmbt_rec_host_t *r, xfs_fsblock_t v);
-extern void xfs_bmbt_set_startoff(xfs_bmbt_rec_host_t *r, xfs_fileoff_t v);
-extern void xfs_bmbt_set_state(xfs_bmbt_rec_host_t *r, xfs_exntst_t v);
-
-extern void xfs_bmbt_disk_set_allf(xfs_bmbt_rec_t *r, xfs_fileoff_t o,
-			xfs_fsblock_t b, xfs_filblks_t c, xfs_exntst_t v);
+extern void xfs_bmbt_disk_get_all(xfs_bmbt_rec_t *r, xfs_bmbt_irec_t *s);
 
 extern void xfs_bmbt_to_bmdr(struct xfs_mount *, struct xfs_btree_block *, int,
 			xfs_bmdr_block_t *, int);
@@ -136,9 +122,9 @@ extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *,
  * Check that the extent does not contain an invalid unwritten extent flag.
  */
 static inline bool xfs_bmbt_validate_extent(struct xfs_mount *mp, int whichfork,
-		struct xfs_bmbt_rec_host *ep)
+		struct xfs_bmbt_irec *irec)
 {
-	if (ep->l0 >> (64 - BMBT_EXNTFLAG_BITLEN) == 0)
+	if (irec->br_state == XFS_EXT_NORM)
 		return true;
 	if (whichfork == XFS_DATA_FORK &&
 	    xfs_sb_version_hasextflgbit(&mp->m_sb))
diff --git a/fs/xfs/libxfs/xfs_btree.c b/fs/xfs/libxfs/xfs_btree.c
index 5bfb88261c7e..5f33adf8eecb 100644
--- a/fs/xfs/libxfs/xfs_btree.c
+++ b/fs/xfs/libxfs/xfs_btree.c
@@ -29,6 +29,7 @@
 #include "xfs_inode_item.h"
 #include "xfs_buf_item.h"
 #include "xfs_btree.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
@@ -63,44 +64,63 @@ xfs_btree_magic(
 	return magic;
 }
 
-STATIC int				/* error (0 or EFSCORRUPTED) */
-xfs_btree_check_lblock(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	struct xfs_btree_block	*block,	/* btree long form block pointer */
-	int			level,	/* level of the btree block */
-	struct xfs_buf		*bp)	/* buffer for block, if any */
+/*
+ * Check a long btree block header.  Return the address of the failing check,
+ * or NULL if everything is ok.
+ */
+xfs_failaddr_t
+__xfs_btree_check_lblock(
+	struct xfs_btree_cur	*cur,
+	struct xfs_btree_block	*block,
+	int			level,
+	struct xfs_buf		*bp)
 {
-	int			lblock_ok = 1; /* block passes checks */
-	struct xfs_mount	*mp;	/* file system mount point */
+	struct xfs_mount	*mp = cur->bc_mp;
 	xfs_btnum_t		btnum = cur->bc_btnum;
-	int			crc;
-
-	mp = cur->bc_mp;
-	crc = xfs_sb_version_hascrc(&mp->m_sb);
+	int			crc = xfs_sb_version_hascrc(&mp->m_sb);
 
 	if (crc) {
-		lblock_ok = lblock_ok &&
-			uuid_equal(&block->bb_u.l.bb_uuid,
-				   &mp->m_sb.sb_meta_uuid) &&
-			block->bb_u.l.bb_blkno == cpu_to_be64(
-				bp ? bp->b_bn : XFS_BUF_DADDR_NULL);
+		if (!uuid_equal(&block->bb_u.l.bb_uuid, &mp->m_sb.sb_meta_uuid))
+			return __this_address;
+		if (block->bb_u.l.bb_blkno !=
+		    cpu_to_be64(bp ? bp->b_bn : XFS_BUF_DADDR_NULL))
+			return __this_address;
+		if (block->bb_u.l.bb_pad != cpu_to_be32(0))
+			return __this_address;
 	}
 
-	lblock_ok = lblock_ok &&
-		be32_to_cpu(block->bb_magic) == xfs_btree_magic(crc, btnum) &&
-		be16_to_cpu(block->bb_level) == level &&
-		be16_to_cpu(block->bb_numrecs) <=
-			cur->bc_ops->get_maxrecs(cur, level) &&
-		block->bb_u.l.bb_leftsib &&
-		(block->bb_u.l.bb_leftsib == cpu_to_be64(NULLFSBLOCK) ||
-		 XFS_FSB_SANITY_CHECK(mp,
-			be64_to_cpu(block->bb_u.l.bb_leftsib))) &&
-		block->bb_u.l.bb_rightsib &&
-		(block->bb_u.l.bb_rightsib == cpu_to_be64(NULLFSBLOCK) ||
-		 XFS_FSB_SANITY_CHECK(mp,
-			be64_to_cpu(block->bb_u.l.bb_rightsib)));
-
-	if (unlikely(XFS_TEST_ERROR(!lblock_ok, mp,
+	if (be32_to_cpu(block->bb_magic) != xfs_btree_magic(crc, btnum))
+		return __this_address;
+	if (be16_to_cpu(block->bb_level) != level)
+		return __this_address;
+	if (be16_to_cpu(block->bb_numrecs) >
+	    cur->bc_ops->get_maxrecs(cur, level))
+		return __this_address;
+	if (block->bb_u.l.bb_leftsib != cpu_to_be64(NULLFSBLOCK) &&
+	    !xfs_btree_check_lptr(cur, be64_to_cpu(block->bb_u.l.bb_leftsib),
+			level + 1))
+		return __this_address;
+	if (block->bb_u.l.bb_rightsib != cpu_to_be64(NULLFSBLOCK) &&
+	    !xfs_btree_check_lptr(cur, be64_to_cpu(block->bb_u.l.bb_rightsib),
+			level + 1))
+		return __this_address;
+
+	return NULL;
+}
+
+/* Check a long btree block header. */
+static int
+xfs_btree_check_lblock(
+	struct xfs_btree_cur	*cur,
+	struct xfs_btree_block	*block,
+	int			level,
+	struct xfs_buf		*bp)
+{
+	struct xfs_mount	*mp = cur->bc_mp;
+	xfs_failaddr_t		fa;
+
+	fa = __xfs_btree_check_lblock(cur, block, level, bp);
+	if (unlikely(XFS_TEST_ERROR(fa != NULL, mp,
 			XFS_ERRTAG_BTREE_CHECK_LBLOCK))) {
 		if (bp)
 			trace_xfs_btree_corrupt(bp, _RET_IP_);
@@ -110,48 +130,61 @@ xfs_btree_check_lblock(
 	return 0;
 }
 
-STATIC int				/* error (0 or EFSCORRUPTED) */
-xfs_btree_check_sblock(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	struct xfs_btree_block	*block,	/* btree short form block pointer */
-	int			level,	/* level of the btree block */
-	struct xfs_buf		*bp)	/* buffer containing block */
+/*
+ * Check a short btree block header.  Return the address of the failing check,
+ * or NULL if everything is ok.
+ */
+xfs_failaddr_t
+__xfs_btree_check_sblock(
+	struct xfs_btree_cur	*cur,
+	struct xfs_btree_block	*block,
+	int			level,
+	struct xfs_buf		*bp)
 {
-	struct xfs_mount	*mp;	/* file system mount point */
-	struct xfs_buf		*agbp;	/* buffer for ag. freespace struct */
-	struct xfs_agf		*agf;	/* ag. freespace structure */
-	xfs_agblock_t		agflen;	/* native ag. freespace length */
-	int			sblock_ok = 1; /* block passes checks */
+	struct xfs_mount	*mp = cur->bc_mp;
 	xfs_btnum_t		btnum = cur->bc_btnum;
-	int			crc;
-
-	mp = cur->bc_mp;
-	crc = xfs_sb_version_hascrc(&mp->m_sb);
-	agbp = cur->bc_private.a.agbp;
-	agf = XFS_BUF_TO_AGF(agbp);
-	agflen = be32_to_cpu(agf->agf_length);
+	int			crc = xfs_sb_version_hascrc(&mp->m_sb);
 
 	if (crc) {
-		sblock_ok = sblock_ok &&
-			uuid_equal(&block->bb_u.s.bb_uuid,
-				   &mp->m_sb.sb_meta_uuid) &&
-			block->bb_u.s.bb_blkno == cpu_to_be64(
-				bp ? bp->b_bn : XFS_BUF_DADDR_NULL);
+		if (!uuid_equal(&block->bb_u.s.bb_uuid, &mp->m_sb.sb_meta_uuid))
+			return __this_address;
+		if (block->bb_u.s.bb_blkno !=
+		    cpu_to_be64(bp ? bp->b_bn : XFS_BUF_DADDR_NULL))
+			return __this_address;
 	}
 
-	sblock_ok = sblock_ok &&
-		be32_to_cpu(block->bb_magic) == xfs_btree_magic(crc, btnum) &&
-		be16_to_cpu(block->bb_level) == level &&
-		be16_to_cpu(block->bb_numrecs) <=
-			cur->bc_ops->get_maxrecs(cur, level) &&
-		(block->bb_u.s.bb_leftsib == cpu_to_be32(NULLAGBLOCK) ||
-		 be32_to_cpu(block->bb_u.s.bb_leftsib) < agflen) &&
-		block->bb_u.s.bb_leftsib &&
-		(block->bb_u.s.bb_rightsib == cpu_to_be32(NULLAGBLOCK) ||
-		 be32_to_cpu(block->bb_u.s.bb_rightsib) < agflen) &&
-		block->bb_u.s.bb_rightsib;
-
-	if (unlikely(XFS_TEST_ERROR(!sblock_ok, mp,
+	if (be32_to_cpu(block->bb_magic) != xfs_btree_magic(crc, btnum))
+		return __this_address;
+	if (be16_to_cpu(block->bb_level) != level)
+		return __this_address;
+	if (be16_to_cpu(block->bb_numrecs) >
+	    cur->bc_ops->get_maxrecs(cur, level))
+		return __this_address;
+	if (block->bb_u.s.bb_leftsib != cpu_to_be32(NULLAGBLOCK) &&
+	    !xfs_btree_check_sptr(cur, be32_to_cpu(block->bb_u.s.bb_leftsib),
+			level + 1))
+		return __this_address;
+	if (block->bb_u.s.bb_rightsib != cpu_to_be32(NULLAGBLOCK) &&
+	    !xfs_btree_check_sptr(cur, be32_to_cpu(block->bb_u.s.bb_rightsib),
+			level + 1))
+		return __this_address;
+
+	return NULL;
+}
+
+/* Check a short btree block header. */
+STATIC int
+xfs_btree_check_sblock(
+	struct xfs_btree_cur	*cur,
+	struct xfs_btree_block	*block,
+	int			level,
+	struct xfs_buf		*bp)
+{
+	struct xfs_mount	*mp = cur->bc_mp;
+	xfs_failaddr_t		fa;
+
+	fa = __xfs_btree_check_sblock(cur, block, level, bp);
+	if (unlikely(XFS_TEST_ERROR(fa != NULL, mp,
 			XFS_ERRTAG_BTREE_CHECK_SBLOCK))) {
 		if (bp)
 			trace_xfs_btree_corrupt(bp, _RET_IP_);
@@ -177,59 +210,53 @@ xfs_btree_check_block(
 		return xfs_btree_check_sblock(cur, block, level, bp);
 }
 
-/*
- * Check that (long) pointer is ok.
- */
-int					/* error (0 or EFSCORRUPTED) */
+/* Check that this long pointer is valid and points within the fs. */
+bool
 xfs_btree_check_lptr(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	xfs_fsblock_t		bno,	/* btree block disk address */
-	int			level)	/* btree block level */
+	struct xfs_btree_cur	*cur,
+	xfs_fsblock_t		fsbno,
+	int			level)
 {
-	XFS_WANT_CORRUPTED_RETURN(cur->bc_mp,
-		level > 0 &&
-		bno != NULLFSBLOCK &&
-		XFS_FSB_SANITY_CHECK(cur->bc_mp, bno));
-	return 0;
+	if (level <= 0)
+		return false;
+	return xfs_verify_fsbno(cur->bc_mp, fsbno);
 }
 
-#ifdef DEBUG
-/*
- * Check that (short) pointer is ok.
- */
-STATIC int				/* error (0 or EFSCORRUPTED) */
+/* Check that this short pointer is valid and points within the AG. */
+bool
 xfs_btree_check_sptr(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	xfs_agblock_t		bno,	/* btree block disk address */
-	int			level)	/* btree block level */
+	struct xfs_btree_cur	*cur,
+	xfs_agblock_t		agbno,
+	int			level)
 {
-	xfs_agblock_t		agblocks = cur->bc_mp->m_sb.sb_agblocks;
-
-	XFS_WANT_CORRUPTED_RETURN(cur->bc_mp,
-		level > 0 &&
-		bno != NULLAGBLOCK &&
-		bno != 0 &&
-		bno < agblocks);
-	return 0;
+	if (level <= 0)
+		return false;
+	return xfs_verify_agbno(cur->bc_mp, cur->bc_private.a.agno, agbno);
 }
 
+#ifdef DEBUG
 /*
- * Check that block ptr is ok.
+ * Check that a given (indexed) btree pointer at a certain level of a
+ * btree is valid and doesn't point past where it should.
  */
-STATIC int				/* error (0 or EFSCORRUPTED) */
+static int
 xfs_btree_check_ptr(
-	struct xfs_btree_cur	*cur,	/* btree cursor */
-	union xfs_btree_ptr	*ptr,	/* btree block disk address */
-	int			index,	/* offset from ptr to check */
-	int			level)	/* btree block level */
+	struct xfs_btree_cur	*cur,
+	union xfs_btree_ptr	*ptr,
+	int			index,
+	int			level)
 {
 	if (cur->bc_flags & XFS_BTREE_LONG_PTRS) {
-		return xfs_btree_check_lptr(cur,
-				be64_to_cpu((&ptr->l)[index]), level);
+		XFS_WANT_CORRUPTED_RETURN(cur->bc_mp,
+				xfs_btree_check_lptr(cur,
+					be64_to_cpu((&ptr->l)[index]), level));
 	} else {
-		return xfs_btree_check_sptr(cur,
-				be32_to_cpu((&ptr->s)[index]), level);
+		XFS_WANT_CORRUPTED_RETURN(cur->bc_mp,
+				xfs_btree_check_sptr(cur,
+					be32_to_cpu((&ptr->s)[index]), level));
 	}
+
+	return 0;
 }
 #endif
 
@@ -1027,7 +1054,7 @@ xfs_btree_setbuf(
 	}
 }
 
-STATIC int
+bool
 xfs_btree_ptr_is_null(
 	struct xfs_btree_cur	*cur,
 	union xfs_btree_ptr	*ptr)
@@ -1052,7 +1079,7 @@ xfs_btree_set_ptr_null(
 /*
  * Get/set/init sibling pointers
  */
-STATIC void
+void
 xfs_btree_get_sibling(
 	struct xfs_btree_cur	*cur,
 	struct xfs_btree_block	*block,
@@ -2001,7 +2028,7 @@ error0:
 }
 
 /* Find the high key storage area from a regular key. */
-STATIC union xfs_btree_key *
+union xfs_btree_key *
 xfs_btree_high_key_from_key(
 	struct xfs_btree_cur	*cur,
 	union xfs_btree_key	*key)
@@ -2075,7 +2102,7 @@ xfs_btree_get_node_keys(
 }
 
 /* Derive the keys for any btree block. */
-STATIC void
+void
 xfs_btree_get_keys(
 	struct xfs_btree_cur	*cur,
 	struct xfs_btree_block	*block,
@@ -4914,3 +4941,15 @@ xfs_btree_count_blocks(
 	return xfs_btree_visit_blocks(cur, xfs_btree_count_blocks_helper,
 			blocks);
 }
+
+/* Compare two btree pointers. */
+int64_t
+xfs_btree_diff_two_ptrs(
+	struct xfs_btree_cur		*cur,
+	const union xfs_btree_ptr	*a,
+	const union xfs_btree_ptr	*b)
+{
+	if (cur->bc_flags & XFS_BTREE_LONG_PTRS)
+		return (int64_t)be64_to_cpu(a->l) - be64_to_cpu(b->l);
+	return (int64_t)be32_to_cpu(a->s) - be32_to_cpu(b->s);
+}
diff --git a/fs/xfs/libxfs/xfs_btree.h b/fs/xfs/libxfs/xfs_btree.h
index f2a88c3b1159..b57501c6f71d 100644
--- a/fs/xfs/libxfs/xfs_btree.h
+++ b/fs/xfs/libxfs/xfs_btree.h
@@ -255,6 +255,14 @@ typedef struct xfs_btree_cur
  */
 #define	XFS_BUF_TO_BLOCK(bp)	((struct xfs_btree_block *)((bp)->b_addr))
 
+/*
+ * Internal long and short btree block checks.  They return NULL if the
+ * block is ok or the address of the failed check otherwise.
+ */
+xfs_failaddr_t __xfs_btree_check_lblock(struct xfs_btree_cur *cur,
+		struct xfs_btree_block *block, int level, struct xfs_buf *bp);
+xfs_failaddr_t __xfs_btree_check_sblock(struct xfs_btree_cur *cur,
+		struct xfs_btree_block *block, int level, struct xfs_buf *bp);
 
 /*
  * Check that block header is ok.
@@ -269,10 +277,19 @@ xfs_btree_check_block(
 /*
  * Check that (long) pointer is ok.
  */
-int					/* error (0 or EFSCORRUPTED) */
+bool					/* error (0 or EFSCORRUPTED) */
 xfs_btree_check_lptr(
 	struct xfs_btree_cur	*cur,	/* btree cursor */
-	xfs_fsblock_t		ptr,	/* btree block disk address */
+	xfs_fsblock_t		fsbno,	/* btree block disk address */
+	int			level);	/* btree block level */
+
+/*
+ * Check that (short) pointer is ok.
+ */
+bool					/* error (0 or EFSCORRUPTED) */
+xfs_btree_check_sptr(
+	struct xfs_btree_cur	*cur,	/* btree cursor */
+	xfs_agblock_t		agbno,	/* btree block disk address */
 	int			level);	/* btree block level */
 
 /*
@@ -517,5 +534,16 @@ int xfs_btree_lookup_get_block(struct xfs_btree_cur *cur, int level,
 		union xfs_btree_ptr *pp, struct xfs_btree_block **blkp);
 struct xfs_btree_block *xfs_btree_get_block(struct xfs_btree_cur *cur,
 		int level, struct xfs_buf **bpp);
+bool xfs_btree_ptr_is_null(struct xfs_btree_cur *cur, union xfs_btree_ptr *ptr);
+int64_t xfs_btree_diff_two_ptrs(struct xfs_btree_cur *cur,
+				const union xfs_btree_ptr *a,
+				const union xfs_btree_ptr *b);
+void xfs_btree_get_sibling(struct xfs_btree_cur *cur,
+			   struct xfs_btree_block *block,
+			   union xfs_btree_ptr *ptr, int lr);
+void xfs_btree_get_keys(struct xfs_btree_cur *cur,
+		struct xfs_btree_block *block, union xfs_btree_key *key);
+union xfs_btree_key *xfs_btree_high_key_from_key(struct xfs_btree_cur *cur,
+		union xfs_btree_key *key);
 
 #endif	/* __XFS_BTREE_H__ */
diff --git a/fs/xfs/libxfs/xfs_cksum.h b/fs/xfs/libxfs/xfs_cksum.h
index 8211f48b98e6..999a290cfd72 100644
--- a/fs/xfs/libxfs/xfs_cksum.h
+++ b/fs/xfs/libxfs/xfs_cksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XFS_CKSUM_H
 #define _XFS_CKSUM_H 1
 
diff --git a/fs/xfs/libxfs/xfs_da_btree.c b/fs/xfs/libxfs/xfs_da_btree.c
index 6d4335815c3f..651611530d2f 100644
--- a/fs/xfs/libxfs/xfs_da_btree.c
+++ b/fs/xfs/libxfs/xfs_da_btree.c
@@ -1466,6 +1466,7 @@ xfs_da3_node_lookup_int(
 	int			max;
 	int			error;
 	int			retval;
+	unsigned int		expected_level = 0;
 	struct xfs_inode	*dp = state->args->dp;
 
 	args = state->args;
@@ -1474,7 +1475,7 @@ xfs_da3_node_lookup_int(
 	 * Descend thru the B-tree searching each level for the right
 	 * node to use, until the right hashval is found.
 	 */
-	blkno = (args->whichfork == XFS_DATA_FORK)? args->geo->leafblk : 0;
+	blkno = args->geo->leafblk;
 	for (blk = &state->path.blk[0], state->path.active = 1;
 			 state->path.active <= XFS_DA_NODE_MAXDEPTH;
 			 blk++, state->path.active++) {
@@ -1517,6 +1518,18 @@ xfs_da3_node_lookup_int(
 		dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 		btree = dp->d_ops->node_tree_p(node);
 
+		/* Tree taller than we can handle; bail out! */
+		if (nodehdr.level >= XFS_DA_NODE_MAXDEPTH)
+			return -EFSCORRUPTED;
+
+		/* Check the level from the root. */
+		if (blkno == args->geo->leafblk)
+			expected_level = nodehdr.level - 1;
+		else if (expected_level != nodehdr.level)
+			return -EFSCORRUPTED;
+		else
+			expected_level--;
+
 		max = nodehdr.count;
 		blk->hashval = be32_to_cpu(btree[max - 1].hashval);
 
@@ -1562,8 +1575,15 @@ xfs_da3_node_lookup_int(
 			blk->index = probe;
 			blkno = be32_to_cpu(btree[probe].before);
 		}
+
+		/* We can't point back to the root. */
+		if (blkno == args->geo->leafblk)
+			return -EFSCORRUPTED;
 	}
 
+	if (expected_level != 0)
+		return -EFSCORRUPTED;
+
 	/*
 	 * A leaf block that ends in the hashval that we are interested in
 	 * (final hashval == search hashval) means that the next block may
diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
index ccf9783fd3f0..e10778c102ea 100644
--- a/fs/xfs/libxfs/xfs_dir2.c
+++ b/fs/xfs/libxfs/xfs_dir2.c
@@ -30,6 +30,8 @@
 #include "xfs_bmap.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
+#include "xfs_ialloc.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 
@@ -38,7 +40,9 @@ struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
 /*
  * Convert inode mode to directory entry filetype
  */
-unsigned char xfs_mode_to_ftype(int mode)
+unsigned char
+xfs_mode_to_ftype(
+	int		mode)
 {
 	switch (mode & S_IFMT) {
 	case S_IFREG:
@@ -202,22 +206,8 @@ xfs_dir_ino_validate(
 	xfs_mount_t	*mp,
 	xfs_ino_t	ino)
 {
-	xfs_agblock_t	agblkno;
-	xfs_agino_t	agino;
-	xfs_agnumber_t	agno;
-	int		ino_ok;
-	int		ioff;
-
-	agno = XFS_INO_TO_AGNO(mp, ino);
-	agblkno = XFS_INO_TO_AGBNO(mp, ino);
-	ioff = XFS_INO_TO_OFFSET(mp, ino);
-	agino = XFS_OFFBNO_TO_AGINO(mp, agblkno, ioff);
-	ino_ok =
-		agno < mp->m_sb.sb_agcount &&
-		agblkno < mp->m_sb.sb_agblocks &&
-		agblkno != 0 &&
-		ioff < (1 << mp->m_sb.sb_inopblog) &&
-		XFS_AGINO_TO_INO(mp, agno, agino) == ino;
+	bool		ino_ok = xfs_verify_dir_ino(mp, ino);
+
 	if (unlikely(XFS_TEST_ERROR(!ino_ok, mp, XFS_ERRTAG_DIR_INO_VALIDATE))) {
 		xfs_warn(mp, "Invalid inode number 0x%Lx",
 				(unsigned long long) ino);
diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
index 21c8f8bf94d5..1a8f2cf977ca 100644
--- a/fs/xfs/libxfs/xfs_dir2.h
+++ b/fs/xfs/libxfs/xfs_dir2.h
@@ -324,4 +324,21 @@ xfs_dir2_leaf_tail_p(struct xfs_da_geometry *geo, struct xfs_dir2_leaf *lp)
 		  sizeof(struct xfs_dir2_leaf_tail));
 }
 
+/*
+ * The Linux API doesn't pass down the total size of the buffer
+ * we read into down to the filesystem.  With the filldir concept
+ * it's not needed for correct information, but the XFS dir2 leaf
+ * code wants an estimate of the buffer size to calculate it's
+ * readahead window and size the buffers used for mapping to
+ * physical blocks.
+ *
+ * Try to give it an estimate that's good enough, maybe at some
+ * point we can change the ->readdir prototype to include the
+ * buffer size.  For now we use the current glibc buffer size.
+ * musl libc hardcodes 2k and dietlibc uses PAGE_SIZE.
+ */
+#define XFS_READDIR_BUFSIZE	(32768)
+
+unsigned char xfs_dir3_get_dtype(struct xfs_mount *mp, uint8_t filetype);
+
 #endif	/* __XFS_DIR2_H__ */
diff --git a/fs/xfs/libxfs/xfs_errortag.h b/fs/xfs/libxfs/xfs_errortag.h
new file mode 100644
index 000000000000..bc1789d95152
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_errortag.h
@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
+ * Copyright (C) 2017 Oracle.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __XFS_ERRORTAG_H_
+#define __XFS_ERRORTAG_H_
+
+/*
+ * error injection tags - the labels can be anything you want
+ * but each tag should have its own unique number
+ */
+
+#define XFS_ERRTAG_NOERROR				0
+#define XFS_ERRTAG_IFLUSH_1				1
+#define XFS_ERRTAG_IFLUSH_2				2
+#define XFS_ERRTAG_IFLUSH_3				3
+#define XFS_ERRTAG_IFLUSH_4				4
+#define XFS_ERRTAG_IFLUSH_5				5
+#define XFS_ERRTAG_IFLUSH_6				6
+#define XFS_ERRTAG_DA_READ_BUF				7
+#define XFS_ERRTAG_BTREE_CHECK_LBLOCK			8
+#define XFS_ERRTAG_BTREE_CHECK_SBLOCK			9
+#define XFS_ERRTAG_ALLOC_READ_AGF			10
+#define XFS_ERRTAG_IALLOC_READ_AGI			11
+#define XFS_ERRTAG_ITOBP_INOTOBP			12
+#define XFS_ERRTAG_IUNLINK				13
+#define XFS_ERRTAG_IUNLINK_REMOVE			14
+#define XFS_ERRTAG_DIR_INO_VALIDATE			15
+#define XFS_ERRTAG_BULKSTAT_READ_CHUNK			16
+#define XFS_ERRTAG_IODONE_IOERR				17
+#define XFS_ERRTAG_STRATREAD_IOERR			18
+#define XFS_ERRTAG_STRATCMPL_IOERR			19
+#define XFS_ERRTAG_DIOWRITE_IOERR			20
+#define XFS_ERRTAG_BMAPIFORMAT				21
+#define XFS_ERRTAG_FREE_EXTENT				22
+#define XFS_ERRTAG_RMAP_FINISH_ONE			23
+#define XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE		24
+#define XFS_ERRTAG_REFCOUNT_FINISH_ONE			25
+#define XFS_ERRTAG_BMAP_FINISH_ONE			26
+#define XFS_ERRTAG_AG_RESV_CRITICAL			27
+/*
+ * DEBUG mode instrumentation to test and/or trigger delayed allocation
+ * block killing in the event of failed writes. When enabled, all
+ * buffered writes are silenty dropped and handled as if they failed.
+ * All delalloc blocks in the range of the write (including pre-existing
+ * delalloc blocks!) are tossed as part of the write failure error
+ * handling sequence.
+ */
+#define XFS_ERRTAG_DROP_WRITES				28
+#define XFS_ERRTAG_LOG_BAD_CRC				29
+#define XFS_ERRTAG_LOG_ITEM_PIN				30
+#define XFS_ERRTAG_BUF_LRU_REF				31
+#define XFS_ERRTAG_MAX					32
+
+/*
+ * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
+ */
+#define XFS_RANDOM_DEFAULT				100
+#define XFS_RANDOM_IFLUSH_1				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_2				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_3				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_4				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_5				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IFLUSH_6				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_DA_READ_BUF				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_BTREE_CHECK_LBLOCK			(XFS_RANDOM_DEFAULT/4)
+#define XFS_RANDOM_BTREE_CHECK_SBLOCK			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_ALLOC_READ_AGF			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IALLOC_READ_AGI			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_ITOBP_INOTOBP			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IUNLINK				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IUNLINK_REMOVE			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_DIR_INO_VALIDATE			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_BULKSTAT_READ_CHUNK			XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_IODONE_IOERR				(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_STRATREAD_IOERR			(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_STRATCMPL_IOERR			(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_DIOWRITE_IOERR			(XFS_RANDOM_DEFAULT/10)
+#define XFS_RANDOM_BMAPIFORMAT				XFS_RANDOM_DEFAULT
+#define XFS_RANDOM_FREE_EXTENT				1
+#define XFS_RANDOM_RMAP_FINISH_ONE			1
+#define XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE		1
+#define XFS_RANDOM_REFCOUNT_FINISH_ONE			1
+#define XFS_RANDOM_BMAP_FINISH_ONE			1
+#define XFS_RANDOM_AG_RESV_CRITICAL			4
+#define XFS_RANDOM_DROP_WRITES				1
+#define XFS_RANDOM_LOG_BAD_CRC				1
+#define XFS_RANDOM_LOG_ITEM_PIN				1
+#define XFS_RANDOM_BUF_LRU_REF				2
+
+#endif /* __XFS_ERRORTAG_H_ */
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index 23229f0c5b15..1acb584fc5f7 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -315,6 +315,11 @@ static inline bool xfs_sb_good_version(struct xfs_sb *sbp)
 	return false;
 }
 
+static inline bool xfs_sb_version_hasrealtime(struct xfs_sb *sbp)
+{
+	return sbp->sb_rblocks > 0;
+}
+
 /*
  * Detect a mismatched features2 field.  Older kernels read/wrote
  * this into the wrong slot, so to be safe we keep them in sync.
@@ -500,12 +505,12 @@ xfs_sb_has_incompat_log_feature(
 /*
  * V5 superblock specific feature checks
  */
-static inline int xfs_sb_version_hascrc(struct xfs_sb *sbp)
+static inline bool xfs_sb_version_hascrc(struct xfs_sb *sbp)
 {
 	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
 }
 
-static inline int xfs_sb_version_has_pquotino(struct xfs_sb *sbp)
+static inline bool xfs_sb_version_has_pquotino(struct xfs_sb *sbp)
 {
 	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
 }
@@ -518,7 +523,7 @@ static inline int xfs_sb_version_hasftype(struct xfs_sb *sbp)
 		 (sbp->sb_features2 & XFS_SB_VERSION2_FTYPE));
 }
 
-static inline int xfs_sb_version_hasfinobt(xfs_sb_t *sbp)
+static inline bool xfs_sb_version_hasfinobt(xfs_sb_t *sbp)
 {
 	return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5) &&
 		(sbp->sb_features_ro_compat & XFS_SB_FEAT_RO_COMPAT_FINOBT);
@@ -941,7 +946,7 @@ typedef enum xfs_dinode_fmt {
 	XFS_DINODE_FMT_LOCAL,		/* bulk data */
 	XFS_DINODE_FMT_EXTENTS,		/* struct xfs_bmbt_rec */
 	XFS_DINODE_FMT_BTREE,		/* struct xfs_bmdr_block */
-	XFS_DINODE_FMT_UUID		/* uuid_t */
+	XFS_DINODE_FMT_UUID		/* added long ago, but never used */
 } xfs_dinode_fmt_t;
 
 /*
@@ -1142,7 +1147,7 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev)
  * Dquot and dquot block format definitions
  */
 #define XFS_DQUOT_MAGIC		0x4451		/* 'DQ' */
-#define XFS_DQUOT_VERSION	(u_int8_t)0x01	/* latest version number */
+#define XFS_DQUOT_VERSION	(uint8_t)0x01	/* latest version number */
 
 /*
  * This is the main portion of the on-disk representation of quota
@@ -1548,10 +1553,6 @@ typedef struct xfs_bmbt_rec {
 typedef uint64_t	xfs_bmbt_rec_base_t;	/* use this for casts */
 typedef xfs_bmbt_rec_t xfs_bmdr_rec_t;
 
-typedef struct xfs_bmbt_rec_host {
-	uint64_t		l0, l1;
-} xfs_bmbt_rec_host_t;
-
 /*
  * Values and macros for delayed-allocation startblock fields.
  */
@@ -1577,24 +1578,6 @@ static inline xfs_filblks_t startblockval(xfs_fsblock_t x)
 }
 
 /*
- * Possible extent states.
- */
-typedef enum {
-	XFS_EXT_NORM, XFS_EXT_UNWRITTEN,
-} xfs_exntst_t;
-
-/*
- * Incore version of above.
- */
-typedef struct xfs_bmbt_irec
-{
-	xfs_fileoff_t	br_startoff;	/* starting file offset */
-	xfs_fsblock_t	br_startblock;	/* starting block number */
-	xfs_filblks_t	br_blockcount;	/* number of blocks */
-	xfs_exntst_t	br_state;	/* extent state */
-} xfs_bmbt_irec_t;
-
-/*
  * Key structure for non-leaf levels of the tree.
  */
 typedef struct xfs_bmbt_key {
diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
index 8c61f21535d4..b90924104596 100644
--- a/fs/xfs/libxfs/xfs_fs.h
+++ b/fs/xfs/libxfs/xfs_fs.h
@@ -468,6 +468,82 @@ typedef struct xfs_swapext
 #define XFS_FSOP_GOING_FLAGS_LOGFLUSH		0x1	/* flush log but not data */
 #define XFS_FSOP_GOING_FLAGS_NOLOGFLUSH		0x2	/* don't flush log nor data */
 
+/* metadata scrubbing */
+struct xfs_scrub_metadata {
+	__u32 sm_type;		/* What to check? */
+	__u32 sm_flags;		/* flags; see below. */
+	__u64 sm_ino;		/* inode number. */
+	__u32 sm_gen;		/* inode generation. */
+	__u32 sm_agno;		/* ag number. */
+	__u64 sm_reserved[5];	/* pad to 64 bytes */
+};
+
+/*
+ * Metadata types and flags for scrub operation.
+ */
+
+/* Scrub subcommands. */
+#define XFS_SCRUB_TYPE_PROBE	0	/* presence test ioctl */
+#define XFS_SCRUB_TYPE_SB	1	/* superblock */
+#define XFS_SCRUB_TYPE_AGF	2	/* AG free header */
+#define XFS_SCRUB_TYPE_AGFL	3	/* AG free list */
+#define XFS_SCRUB_TYPE_AGI	4	/* AG inode header */
+#define XFS_SCRUB_TYPE_BNOBT	5	/* freesp by block btree */
+#define XFS_SCRUB_TYPE_CNTBT	6	/* freesp by length btree */
+#define XFS_SCRUB_TYPE_INOBT	7	/* inode btree */
+#define XFS_SCRUB_TYPE_FINOBT	8	/* free inode btree */
+#define XFS_SCRUB_TYPE_RMAPBT	9	/* reverse mapping btree */
+#define XFS_SCRUB_TYPE_REFCNTBT	10	/* reference count btree */
+#define XFS_SCRUB_TYPE_INODE	11	/* inode record */
+#define XFS_SCRUB_TYPE_BMBTD	12	/* data fork block mapping */
+#define XFS_SCRUB_TYPE_BMBTA	13	/* attr fork block mapping */
+#define XFS_SCRUB_TYPE_BMBTC	14	/* CoW fork block mapping */
+#define XFS_SCRUB_TYPE_DIR	15	/* directory */
+#define XFS_SCRUB_TYPE_XATTR	16	/* extended attribute */
+#define XFS_SCRUB_TYPE_SYMLINK	17	/* symbolic link */
+#define XFS_SCRUB_TYPE_PARENT	18	/* parent pointers */
+#define XFS_SCRUB_TYPE_RTBITMAP	19	/* realtime bitmap */
+#define XFS_SCRUB_TYPE_RTSUM	20	/* realtime summary */
+#define XFS_SCRUB_TYPE_UQUOTA	21	/* user quotas */
+#define XFS_SCRUB_TYPE_GQUOTA	22	/* group quotas */
+#define XFS_SCRUB_TYPE_PQUOTA	23	/* project quotas */
+
+/* Number of scrub subcommands. */
+#define XFS_SCRUB_TYPE_NR	24
+
+/* i: Repair this metadata. */
+#define XFS_SCRUB_IFLAG_REPAIR		(1 << 0)
+
+/* o: Metadata object needs repair. */
+#define XFS_SCRUB_OFLAG_CORRUPT		(1 << 1)
+
+/*
+ * o: Metadata object could be optimized.  It's not corrupt, but
+ *    we could improve on it somehow.
+ */
+#define XFS_SCRUB_OFLAG_PREEN		(1 << 2)
+
+/* o: Cross-referencing failed. */
+#define XFS_SCRUB_OFLAG_XFAIL		(1 << 3)
+
+/* o: Metadata object disagrees with cross-referenced metadata. */
+#define XFS_SCRUB_OFLAG_XCORRUPT	(1 << 4)
+
+/* o: Scan was not complete. */
+#define XFS_SCRUB_OFLAG_INCOMPLETE	(1 << 5)
+
+/* o: Metadata object looked funny but isn't corrupt. */
+#define XFS_SCRUB_OFLAG_WARNING		(1 << 6)
+
+#define XFS_SCRUB_FLAGS_IN	(XFS_SCRUB_IFLAG_REPAIR)
+#define XFS_SCRUB_FLAGS_OUT	(XFS_SCRUB_OFLAG_CORRUPT | \
+				 XFS_SCRUB_OFLAG_PREEN | \
+				 XFS_SCRUB_OFLAG_XFAIL | \
+				 XFS_SCRUB_OFLAG_XCORRUPT | \
+				 XFS_SCRUB_OFLAG_INCOMPLETE | \
+				 XFS_SCRUB_OFLAG_WARNING)
+#define XFS_SCRUB_FLAGS_ALL	(XFS_SCRUB_FLAGS_IN | XFS_SCRUB_FLAGS_OUT)
+
 /*
  * ioctl limits
  */
@@ -511,6 +587,7 @@ typedef struct xfs_swapext
 #define XFS_IOC_ZERO_RANGE	_IOW ('X', 57, struct xfs_flock64)
 #define XFS_IOC_FREE_EOFBLOCKS	_IOR ('X', 58, struct xfs_fs_eofblocks)
 /*	XFS_IOC_GETFSMAP ------ hoisted 59         */
+#define XFS_IOC_SCRUB_METADATA	_IOWR('X', 60, struct xfs_scrub_metadata)
 
 /*
  * ioctl commands that replace IRIX syssgi()'s
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index 988bb3f31446..de3f04a98656 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -31,6 +31,7 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_bmap.h"
 #include "xfs_cksum.h"
@@ -1962,7 +1963,7 @@ xfs_difree_inobt(
 	if (!(mp->m_flags & XFS_MOUNT_IKEEP) &&
 	    rec.ir_free == XFS_INOBT_ALL_FREE &&
 	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK) {
-		xic->deleted = 1;
+		xic->deleted = true;
 		xic->first_ino = XFS_AGINO_TO_INO(mp, agno, rec.ir_startino);
 		xic->alloc = xfs_inobt_irec_to_allocmask(&rec);
 
@@ -1989,7 +1990,7 @@ xfs_difree_inobt(
 
 		xfs_difree_inode_chunk(mp, agno, &rec, dfops);
 	} else {
-		xic->deleted = 0;
+		xic->deleted = false;
 
 		error = xfs_inobt_update(cur, &rec);
 		if (error) {
@@ -2664,3 +2665,93 @@ xfs_ialloc_pagi_init(
 		xfs_trans_brelse(tp, bp);
 	return 0;
 }
+
+/* Calculate the first and last possible inode number in an AG. */
+void
+xfs_ialloc_agino_range(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		agno,
+	xfs_agino_t		*first,
+	xfs_agino_t		*last)
+{
+	xfs_agblock_t		bno;
+	xfs_agblock_t		eoag;
+
+	eoag = xfs_ag_block_count(mp, agno);
+
+	/*
+	 * Calculate the first inode, which will be in the first
+	 * cluster-aligned block after the AGFL.
+	 */
+	bno = round_up(XFS_AGFL_BLOCK(mp) + 1,
+			xfs_ialloc_cluster_alignment(mp));
+	*first = XFS_OFFBNO_TO_AGINO(mp, bno, 0);
+
+	/*
+	 * Calculate the last inode, which will be at the end of the
+	 * last (aligned) cluster that can be allocated in the AG.
+	 */
+	bno = round_down(eoag, xfs_ialloc_cluster_alignment(mp));
+	*last = XFS_OFFBNO_TO_AGINO(mp, bno, 0) - 1;
+}
+
+/*
+ * Verify that an AG inode number pointer neither points outside the AG
+ * nor points at static metadata.
+ */
+bool
+xfs_verify_agino(
+	struct xfs_mount	*mp,
+	xfs_agnumber_t		agno,
+	xfs_agino_t		agino)
+{
+	xfs_agino_t		first;
+	xfs_agino_t		last;
+
+	xfs_ialloc_agino_range(mp, agno, &first, &last);
+	return agino >= first && agino <= last;
+}
+
+/*
+ * Verify that an FS inode number pointer neither points outside the
+ * filesystem nor points at static AG metadata.
+ */
+bool
+xfs_verify_ino(
+	struct xfs_mount	*mp,
+	xfs_ino_t		ino)
+{
+	xfs_agnumber_t		agno = XFS_INO_TO_AGNO(mp, ino);
+	xfs_agino_t		agino = XFS_INO_TO_AGINO(mp, ino);
+
+	if (agno >= mp->m_sb.sb_agcount)
+		return false;
+	if (XFS_AGINO_TO_INO(mp, agno, agino) != ino)
+		return false;
+	return xfs_verify_agino(mp, agno, agino);
+}
+
+/* Is this an internal inode number? */
+bool
+xfs_internal_inum(
+	struct xfs_mount	*mp,
+	xfs_ino_t		ino)
+{
+	return ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
+		(xfs_sb_version_hasquota(&mp->m_sb) &&
+		 xfs_is_quota_inode(&mp->m_sb, ino));
+}
+
+/*
+ * Verify that a directory entry's inode number doesn't point at an internal
+ * inode, empty space, or static AG metadata.
+ */
+bool
+xfs_verify_dir_ino(
+	struct xfs_mount	*mp,
+	xfs_ino_t		ino)
+{
+	if (xfs_internal_inum(mp, ino))
+		return false;
+	return xfs_verify_ino(mp, ino);
+}
diff --git a/fs/xfs/libxfs/xfs_ialloc.h b/fs/xfs/libxfs/xfs_ialloc.h
index b32cfb5aeb5b..d2bdcd5e7312 100644
--- a/fs/xfs/libxfs/xfs_ialloc.h
+++ b/fs/xfs/libxfs/xfs_ialloc.h
@@ -173,5 +173,12 @@ void xfs_inobt_btrec_to_irec(struct xfs_mount *mp, union xfs_btree_rec *rec,
 		struct xfs_inobt_rec_incore *irec);
 
 int xfs_ialloc_cluster_alignment(struct xfs_mount *mp);
+void xfs_ialloc_agino_range(struct xfs_mount *mp, xfs_agnumber_t agno,
+		xfs_agino_t *first, xfs_agino_t *last);
+bool xfs_verify_agino(struct xfs_mount *mp, xfs_agnumber_t agno,
+		xfs_agino_t agino);
+bool xfs_verify_ino(struct xfs_mount *mp, xfs_ino_t ino);
+bool xfs_internal_inum(struct xfs_mount *mp, xfs_ino_t ino);
+bool xfs_verify_dir_ino(struct xfs_mount *mp, xfs_ino_t ino);
 
 #endif	/* __XFS_IALLOC_H__ */
diff --git a/fs/xfs/libxfs/xfs_iext_tree.c b/fs/xfs/libxfs/xfs_iext_tree.c
new file mode 100644
index 000000000000..343a94246f5b
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_iext_tree.c
@@ -0,0 +1,1043 @@
+/*
+ * Copyright (c) 2017 Christoph Hellwig.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+
+#include <linux/cache.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include "xfs.h"
+#include "xfs_format.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_inode.h"
+#include "xfs_inode_fork.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_trace.h"
+
+/*
+ * In-core extent record layout:
+ *
+ * +-------+----------------------------+
+ * | 00:53 | all 54 bits of startoff    |
+ * | 54:63 | low 10 bits of startblock  |
+ * +-------+----------------------------+
+ * | 00:20 | all 21 bits of length      |
+ * |    21 | unwritten extent bit       |
+ * | 22:63 | high 42 bits of startblock |
+ * +-------+----------------------------+
+ */
+#define XFS_IEXT_STARTOFF_MASK		xfs_mask64lo(BMBT_STARTOFF_BITLEN)
+#define XFS_IEXT_LENGTH_MASK		xfs_mask64lo(BMBT_BLOCKCOUNT_BITLEN)
+#define XFS_IEXT_STARTBLOCK_MASK	xfs_mask64lo(BMBT_STARTBLOCK_BITLEN)
+
+struct xfs_iext_rec {
+	uint64_t			lo;
+	uint64_t			hi;
+};
+
+/*
+ * Given that the length can't be a zero, only an empty hi value indicates an
+ * unused record.
+ */
+static bool xfs_iext_rec_is_empty(struct xfs_iext_rec *rec)
+{
+	return rec->hi == 0;
+}
+
+static inline void xfs_iext_rec_clear(struct xfs_iext_rec *rec)
+{
+	rec->lo = 0;
+	rec->hi = 0;
+}
+
+static void
+xfs_iext_set(
+	struct xfs_iext_rec	*rec,
+	struct xfs_bmbt_irec	*irec)
+{
+	ASSERT((irec->br_startoff & ~XFS_IEXT_STARTOFF_MASK) == 0);
+	ASSERT((irec->br_blockcount & ~XFS_IEXT_LENGTH_MASK) == 0);
+	ASSERT((irec->br_startblock & ~XFS_IEXT_STARTBLOCK_MASK) == 0);
+
+	rec->lo = irec->br_startoff & XFS_IEXT_STARTOFF_MASK;
+	rec->hi = irec->br_blockcount & XFS_IEXT_LENGTH_MASK;
+
+	rec->lo |= (irec->br_startblock << 54);
+	rec->hi |= ((irec->br_startblock & ~xfs_mask64lo(10)) << (22 - 10));
+
+	if (irec->br_state == XFS_EXT_UNWRITTEN)
+		rec->hi |= (1 << 21);
+}
+
+static void
+xfs_iext_get(
+	struct xfs_bmbt_irec	*irec,
+	struct xfs_iext_rec	*rec)
+{
+	irec->br_startoff = rec->lo & XFS_IEXT_STARTOFF_MASK;
+	irec->br_blockcount = rec->hi & XFS_IEXT_LENGTH_MASK;
+
+	irec->br_startblock = rec->lo >> 54;
+	irec->br_startblock |= (rec->hi & xfs_mask64hi(42)) >> (22 - 10);
+
+	if (rec->hi & (1 << 21))
+		irec->br_state = XFS_EXT_UNWRITTEN;
+	else
+		irec->br_state = XFS_EXT_NORM;
+}
+
+enum {
+	NODE_SIZE	= 256,
+	KEYS_PER_NODE	= NODE_SIZE / (sizeof(uint64_t) + sizeof(void *)),
+	RECS_PER_LEAF	= (NODE_SIZE - (2 * sizeof(struct xfs_iext_leaf *))) /
+				sizeof(struct xfs_iext_rec),
+};
+
+/*
+ * In-core extent btree block layout:
+ *
+ * There are two types of blocks in the btree: leaf and inner (non-leaf) blocks.
+ *
+ * The leaf blocks are made up by %KEYS_PER_NODE extent records, which each
+ * contain the startoffset, blockcount, startblock and unwritten extent flag.
+ * See above for the exact format, followed by pointers to the previous and next
+ * leaf blocks (if there are any).
+ *
+ * The inner (non-leaf) blocks first contain KEYS_PER_NODE lookup keys, followed
+ * by an equal number of pointers to the btree blocks at the next lower level.
+ *
+ *		+-------+-------+-------+-------+-------+----------+----------+
+ * Leaf:	| rec 1 | rec 2 | rec 3 | rec 4 | rec N | prev-ptr | next-ptr |
+ *		+-------+-------+-------+-------+-------+----------+----------+
+ *
+ *		+-------+-------+-------+-------+-------+-------+------+-------+
+ * Inner:	| key 1 | key 2 | key 3 | key N | ptr 1 | ptr 2 | ptr3 | ptr N |
+ *		+-------+-------+-------+-------+-------+-------+------+-------+
+ */
+struct xfs_iext_node {
+	uint64_t		keys[KEYS_PER_NODE];
+#define XFS_IEXT_KEY_INVALID	(1ULL << 63)
+	void			*ptrs[KEYS_PER_NODE];
+};
+
+struct xfs_iext_leaf {
+	struct xfs_iext_rec	recs[RECS_PER_LEAF];
+	struct xfs_iext_leaf	*prev;
+	struct xfs_iext_leaf	*next;
+};
+
+inline xfs_extnum_t xfs_iext_count(struct xfs_ifork *ifp)
+{
+	return ifp->if_bytes / sizeof(struct xfs_iext_rec);
+}
+
+static inline int xfs_iext_max_recs(struct xfs_ifork *ifp)
+{
+	if (ifp->if_height == 1)
+		return xfs_iext_count(ifp);
+	return RECS_PER_LEAF;
+}
+
+static inline struct xfs_iext_rec *cur_rec(struct xfs_iext_cursor *cur)
+{
+	return &cur->leaf->recs[cur->pos];
+}
+
+static inline bool xfs_iext_valid(struct xfs_ifork *ifp,
+		struct xfs_iext_cursor *cur)
+{
+	if (!cur->leaf)
+		return false;
+	if (cur->pos < 0 || cur->pos >= xfs_iext_max_recs(ifp))
+		return false;
+	if (xfs_iext_rec_is_empty(cur_rec(cur)))
+		return false;
+	return true;
+}
+
+static void *
+xfs_iext_find_first_leaf(
+	struct xfs_ifork	*ifp)
+{
+	struct xfs_iext_node	*node = ifp->if_u1.if_root;
+	int			height;
+
+	if (!ifp->if_height)
+		return NULL;
+
+	for (height = ifp->if_height; height > 1; height--) {
+		node = node->ptrs[0];
+		ASSERT(node);
+	}
+
+	return node;
+}
+
+static void *
+xfs_iext_find_last_leaf(
+	struct xfs_ifork	*ifp)
+{
+	struct xfs_iext_node	*node = ifp->if_u1.if_root;
+	int			height, i;
+
+	if (!ifp->if_height)
+		return NULL;
+
+	for (height = ifp->if_height; height > 1; height--) {
+		for (i = 1; i < KEYS_PER_NODE; i++)
+			if (!node->ptrs[i])
+				break;
+		node = node->ptrs[i - 1];
+		ASSERT(node);
+	}
+
+	return node;
+}
+
+void
+xfs_iext_first(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur)
+{
+	cur->pos = 0;
+	cur->leaf = xfs_iext_find_first_leaf(ifp);
+}
+
+void
+xfs_iext_last(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur)
+{
+	int			i;
+
+	cur->leaf = xfs_iext_find_last_leaf(ifp);
+	if (!cur->leaf) {
+		cur->pos = 0;
+		return;
+	}
+
+	for (i = 1; i < xfs_iext_max_recs(ifp); i++) {
+		if (xfs_iext_rec_is_empty(&cur->leaf->recs[i]))
+			break;
+	}
+	cur->pos = i - 1;
+}
+
+void
+xfs_iext_next(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur)
+{
+	if (!cur->leaf) {
+		ASSERT(cur->pos <= 0 || cur->pos >= RECS_PER_LEAF);
+		xfs_iext_first(ifp, cur);
+		return;
+	}
+
+	ASSERT(cur->pos >= 0);
+	ASSERT(cur->pos < xfs_iext_max_recs(ifp));
+
+	cur->pos++;
+	if (ifp->if_height > 1 && !xfs_iext_valid(ifp, cur) &&
+	    cur->leaf->next) {
+		cur->leaf = cur->leaf->next;
+		cur->pos = 0;
+	}
+}
+
+void
+xfs_iext_prev(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur)
+{
+	if (!cur->leaf) {
+		ASSERT(cur->pos <= 0 || cur->pos >= RECS_PER_LEAF);
+		xfs_iext_last(ifp, cur);
+		return;
+	}
+
+	ASSERT(cur->pos >= 0);
+	ASSERT(cur->pos <= RECS_PER_LEAF);
+
+recurse:
+	do {
+		cur->pos--;
+		if (xfs_iext_valid(ifp, cur))
+			return;
+	} while (cur->pos > 0);
+
+	if (ifp->if_height > 1 && cur->leaf->prev) {
+		cur->leaf = cur->leaf->prev;
+		cur->pos = RECS_PER_LEAF;
+		goto recurse;
+	}
+}
+
+static inline int
+xfs_iext_key_cmp(
+	struct xfs_iext_node	*node,
+	int			n,
+	xfs_fileoff_t		offset)
+{
+	if (node->keys[n] > offset)
+		return 1;
+	if (node->keys[n] < offset)
+		return -1;
+	return 0;
+}
+
+static inline int
+xfs_iext_rec_cmp(
+	struct xfs_iext_rec	*rec,
+	xfs_fileoff_t		offset)
+{
+	uint64_t		rec_offset = rec->lo & XFS_IEXT_STARTOFF_MASK;
+	u32			rec_len = rec->hi & XFS_IEXT_LENGTH_MASK;
+
+	if (rec_offset > offset)
+		return 1;
+	if (rec_offset + rec_len <= offset)
+		return -1;
+	return 0;
+}
+
+static void *
+xfs_iext_find_level(
+	struct xfs_ifork	*ifp,
+	xfs_fileoff_t		offset,
+	int			level)
+{
+	struct xfs_iext_node	*node = ifp->if_u1.if_root;
+	int			height, i;
+
+	if (!ifp->if_height)
+		return NULL;
+
+	for (height = ifp->if_height; height > level; height--) {
+		for (i = 1; i < KEYS_PER_NODE; i++)
+			if (xfs_iext_key_cmp(node, i, offset) > 0)
+				break;
+
+		node = node->ptrs[i - 1];
+		if (!node)
+			break;
+	}
+
+	return node;
+}
+
+static int
+xfs_iext_node_pos(
+	struct xfs_iext_node	*node,
+	xfs_fileoff_t		offset)
+{
+	int			i;
+
+	for (i = 1; i < KEYS_PER_NODE; i++) {
+		if (xfs_iext_key_cmp(node, i, offset) > 0)
+			break;
+	}
+
+	return i - 1;
+}
+
+static int
+xfs_iext_node_insert_pos(
+	struct xfs_iext_node	*node,
+	xfs_fileoff_t		offset)
+{
+	int			i;
+
+	for (i = 0; i < KEYS_PER_NODE; i++) {
+		if (xfs_iext_key_cmp(node, i, offset) > 0)
+			return i;
+	}
+
+	return KEYS_PER_NODE;
+}
+
+static int
+xfs_iext_node_nr_entries(
+	struct xfs_iext_node	*node,
+	int			start)
+{
+	int			i;
+
+	for (i = start; i < KEYS_PER_NODE; i++) {
+		if (node->keys[i] == XFS_IEXT_KEY_INVALID)
+			break;
+	}
+
+	return i;
+}
+
+static int
+xfs_iext_leaf_nr_entries(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_leaf	*leaf,
+	int			start)
+{
+	int			i;
+
+	for (i = start; i < xfs_iext_max_recs(ifp); i++) {
+		if (xfs_iext_rec_is_empty(&leaf->recs[i]))
+			break;
+	}
+
+	return i;
+}
+
+static inline uint64_t
+xfs_iext_leaf_key(
+	struct xfs_iext_leaf	*leaf,
+	int			n)
+{
+	return leaf->recs[n].lo & XFS_IEXT_STARTOFF_MASK;
+}
+
+static void
+xfs_iext_grow(
+	struct xfs_ifork	*ifp)
+{
+	struct xfs_iext_node	*node = kmem_zalloc(NODE_SIZE, KM_NOFS);
+	int			i;
+
+	if (ifp->if_height == 1) {
+		struct xfs_iext_leaf *prev = ifp->if_u1.if_root;
+
+		node->keys[0] = xfs_iext_leaf_key(prev, 0);
+		node->ptrs[0] = prev;
+	} else  {
+		struct xfs_iext_node *prev = ifp->if_u1.if_root;
+
+		ASSERT(ifp->if_height > 1);
+
+		node->keys[0] = prev->keys[0];
+		node->ptrs[0] = prev;
+	}
+
+	for (i = 1; i < KEYS_PER_NODE; i++)
+		node->keys[i] = XFS_IEXT_KEY_INVALID;
+
+	ifp->if_u1.if_root = node;
+	ifp->if_height++;
+}
+
+static void
+xfs_iext_update_node(
+	struct xfs_ifork	*ifp,
+	xfs_fileoff_t		old_offset,
+	xfs_fileoff_t		new_offset,
+	int			level,
+	void			*ptr)
+{
+	struct xfs_iext_node	*node = ifp->if_u1.if_root;
+	int			height, i;
+
+	for (height = ifp->if_height; height > level; height--) {
+		for (i = 0; i < KEYS_PER_NODE; i++) {
+			if (i > 0 && xfs_iext_key_cmp(node, i, old_offset) > 0)
+				break;
+			if (node->keys[i] == old_offset)
+				node->keys[i] = new_offset;
+		}
+		node = node->ptrs[i - 1];
+		ASSERT(node);
+	}
+
+	ASSERT(node == ptr);
+}
+
+static struct xfs_iext_node *
+xfs_iext_split_node(
+	struct xfs_iext_node	**nodep,
+	int			*pos,
+	int			*nr_entries)
+{
+	struct xfs_iext_node	*node = *nodep;
+	struct xfs_iext_node	*new = kmem_zalloc(NODE_SIZE, KM_NOFS);
+	const int		nr_move = KEYS_PER_NODE / 2;
+	int			nr_keep = nr_move + (KEYS_PER_NODE & 1);
+	int			i = 0;
+
+	/* for sequential append operations just spill over into the new node */
+	if (*pos == KEYS_PER_NODE) {
+		*nodep = new;
+		*pos = 0;
+		*nr_entries = 0;
+		goto done;
+	}
+
+
+	for (i = 0; i < nr_move; i++) {
+		new->keys[i] = node->keys[nr_keep + i];
+		new->ptrs[i] = node->ptrs[nr_keep + i];
+
+		node->keys[nr_keep + i] = XFS_IEXT_KEY_INVALID;
+		node->ptrs[nr_keep + i] = NULL;
+	}
+
+	if (*pos >= nr_keep) {
+		*nodep = new;
+		*pos -= nr_keep;
+		*nr_entries = nr_move;
+	} else {
+		*nr_entries = nr_keep;
+	}
+done:
+	for (; i < KEYS_PER_NODE; i++)
+		new->keys[i] = XFS_IEXT_KEY_INVALID;
+	return new;
+}
+
+static void
+xfs_iext_insert_node(
+	struct xfs_ifork	*ifp,
+	uint64_t		offset,
+	void			*ptr,
+	int			level)
+{
+	struct xfs_iext_node	*node, *new;
+	int			i, pos, nr_entries;
+
+again:
+	if (ifp->if_height < level)
+		xfs_iext_grow(ifp);
+
+	new = NULL;
+	node = xfs_iext_find_level(ifp, offset, level);
+	pos = xfs_iext_node_insert_pos(node, offset);
+	nr_entries = xfs_iext_node_nr_entries(node, pos);
+
+	ASSERT(pos >= nr_entries || xfs_iext_key_cmp(node, pos, offset) != 0);
+	ASSERT(nr_entries <= KEYS_PER_NODE);
+
+	if (nr_entries == KEYS_PER_NODE)
+		new = xfs_iext_split_node(&node, &pos, &nr_entries);
+
+	/*
+	 * Update the pointers in higher levels if the first entry changes
+	 * in an existing node.
+	 */
+	if (node != new && pos == 0 && nr_entries > 0)
+		xfs_iext_update_node(ifp, node->keys[0], offset, level, node);
+
+	for (i = nr_entries; i > pos; i--) {
+		node->keys[i] = node->keys[i - 1];
+		node->ptrs[i] = node->ptrs[i - 1];
+	}
+	node->keys[pos] = offset;
+	node->ptrs[pos] = ptr;
+
+	if (new) {
+		offset = new->keys[0];
+		ptr = new;
+		level++;
+		goto again;
+	}
+}
+
+static struct xfs_iext_leaf *
+xfs_iext_split_leaf(
+	struct xfs_iext_cursor	*cur,
+	int			*nr_entries)
+{
+	struct xfs_iext_leaf	*leaf = cur->leaf;
+	struct xfs_iext_leaf	*new = kmem_zalloc(NODE_SIZE, KM_NOFS);
+	const int		nr_move = RECS_PER_LEAF / 2;
+	int			nr_keep = nr_move + (RECS_PER_LEAF & 1);
+	int			i;
+
+	/* for sequential append operations just spill over into the new node */
+	if (cur->pos == RECS_PER_LEAF) {
+		cur->leaf = new;
+		cur->pos = 0;
+		*nr_entries = 0;
+		goto done;
+	}
+
+	for (i = 0; i < nr_move; i++) {
+		new->recs[i] = leaf->recs[nr_keep + i];
+		xfs_iext_rec_clear(&leaf->recs[nr_keep + i]);
+	}
+
+	if (cur->pos >= nr_keep) {
+		cur->leaf = new;
+		cur->pos -= nr_keep;
+		*nr_entries = nr_move;
+	} else {
+		*nr_entries = nr_keep;
+	}
+done:
+	if (leaf->next)
+		leaf->next->prev = new;
+	new->next = leaf->next;
+	new->prev = leaf;
+	leaf->next = new;
+	return new;
+}
+
+static void
+xfs_iext_alloc_root(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur)
+{
+	ASSERT(ifp->if_bytes == 0);
+
+	ifp->if_u1.if_root = kmem_zalloc(sizeof(struct xfs_iext_rec), KM_NOFS);
+	ifp->if_height = 1;
+
+	/* now that we have a node step into it */
+	cur->leaf = ifp->if_u1.if_root;
+	cur->pos = 0;
+}
+
+static void
+xfs_iext_realloc_root(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur)
+{
+	size_t new_size = ifp->if_bytes + sizeof(struct xfs_iext_rec);
+	void *new;
+
+	/* account for the prev/next pointers */
+	if (new_size / sizeof(struct xfs_iext_rec) == RECS_PER_LEAF)
+		new_size = NODE_SIZE;
+
+	new = kmem_realloc(ifp->if_u1.if_root, new_size, KM_NOFS);
+	memset(new + ifp->if_bytes, 0, new_size - ifp->if_bytes);
+	ifp->if_u1.if_root = new;
+	cur->leaf = new;
+}
+
+void
+xfs_iext_insert(
+	struct xfs_inode	*ip,
+	struct xfs_iext_cursor	*cur,
+	struct xfs_bmbt_irec	*irec,
+	int			state)
+{
+	struct xfs_ifork	*ifp = xfs_iext_state_to_fork(ip, state);
+	xfs_fileoff_t		offset = irec->br_startoff;
+	struct xfs_iext_leaf	*new = NULL;
+	int			nr_entries, i;
+
+	trace_xfs_iext_insert(ip, cur, state, _RET_IP_);
+
+	if (ifp->if_height == 0)
+		xfs_iext_alloc_root(ifp, cur);
+	else if (ifp->if_height == 1)
+		xfs_iext_realloc_root(ifp, cur);
+
+	nr_entries = xfs_iext_leaf_nr_entries(ifp, cur->leaf, cur->pos);
+	ASSERT(nr_entries <= RECS_PER_LEAF);
+	ASSERT(cur->pos >= nr_entries ||
+	       xfs_iext_rec_cmp(cur_rec(cur), irec->br_startoff) != 0);
+
+	if (nr_entries == RECS_PER_LEAF)
+		new = xfs_iext_split_leaf(cur, &nr_entries);
+
+	/*
+	 * Update the pointers in higher levels if the first entry changes
+	 * in an existing node.
+	 */
+	if (cur->leaf != new && cur->pos == 0 && nr_entries > 0) {
+		xfs_iext_update_node(ifp, xfs_iext_leaf_key(cur->leaf, 0),
+				offset, 1, cur->leaf);
+	}
+
+	for (i = nr_entries; i > cur->pos; i--)
+		cur->leaf->recs[i] = cur->leaf->recs[i - 1];
+	xfs_iext_set(cur_rec(cur), irec);
+	ifp->if_bytes += sizeof(struct xfs_iext_rec);
+
+	if (new)
+		xfs_iext_insert_node(ifp, xfs_iext_leaf_key(new, 0), new, 2);
+}
+
+static struct xfs_iext_node *
+xfs_iext_rebalance_node(
+	struct xfs_iext_node	*parent,
+	int			*pos,
+	struct xfs_iext_node	*node,
+	int			nr_entries)
+{
+	/*
+	 * If the neighbouring nodes are completely full, or have different
+	 * parents, we might never be able to merge our node, and will only
+	 * delete it once the number of entries hits zero.
+	 */
+	if (nr_entries == 0)
+		return node;
+
+	if (*pos > 0) {
+		struct xfs_iext_node *prev = parent->ptrs[*pos - 1];
+		int nr_prev = xfs_iext_node_nr_entries(prev, 0), i;
+
+		if (nr_prev + nr_entries <= KEYS_PER_NODE) {
+			for (i = 0; i < nr_entries; i++) {
+				prev->keys[nr_prev + i] = node->keys[i];
+				prev->ptrs[nr_prev + i] = node->ptrs[i];
+			}
+			return node;
+		}
+	}
+
+	if (*pos + 1 < xfs_iext_node_nr_entries(parent, *pos)) {
+		struct xfs_iext_node *next = parent->ptrs[*pos + 1];
+		int nr_next = xfs_iext_node_nr_entries(next, 0), i;
+
+		if (nr_entries + nr_next <= KEYS_PER_NODE) {
+			/*
+			 * Merge the next node into this node so that we don't
+			 * have to do an additional update of the keys in the
+			 * higher levels.
+			 */
+			for (i = 0; i < nr_next; i++) {
+				node->keys[nr_entries + i] = next->keys[i];
+				node->ptrs[nr_entries + i] = next->ptrs[i];
+			}
+
+			++*pos;
+			return next;
+		}
+	}
+
+	return NULL;
+}
+
+static void
+xfs_iext_remove_node(
+	struct xfs_ifork	*ifp,
+	xfs_fileoff_t		offset,
+	void			*victim)
+{
+	struct xfs_iext_node	*node, *parent;
+	int			level = 2, pos, nr_entries, i;
+
+	ASSERT(level <= ifp->if_height);
+	node = xfs_iext_find_level(ifp, offset, level);
+	pos = xfs_iext_node_pos(node, offset);
+again:
+	ASSERT(node->ptrs[pos]);
+	ASSERT(node->ptrs[pos] == victim);
+	kmem_free(victim);
+
+	nr_entries = xfs_iext_node_nr_entries(node, pos) - 1;
+	offset = node->keys[0];
+	for (i = pos; i < nr_entries; i++) {
+		node->keys[i] = node->keys[i + 1];
+		node->ptrs[i] = node->ptrs[i + 1];
+	}
+	node->keys[nr_entries] = XFS_IEXT_KEY_INVALID;
+	node->ptrs[nr_entries] = NULL;
+
+	if (pos == 0 && nr_entries > 0) {
+		xfs_iext_update_node(ifp, offset, node->keys[0], level, node);
+		offset = node->keys[0];
+	}
+
+	if (nr_entries >= KEYS_PER_NODE / 2)
+		return;
+
+	if (level < ifp->if_height) {
+		/*
+		 * If we aren't at the root yet try to find a neighbour node to
+		 * merge with (or delete the node if it is empty), and then
+		 * recurse up to the next level.
+		 */
+		level++;
+		parent = xfs_iext_find_level(ifp, offset, level);
+		pos = xfs_iext_node_pos(parent, offset);
+
+		ASSERT(pos != KEYS_PER_NODE);
+		ASSERT(parent->ptrs[pos] == node);
+
+		node = xfs_iext_rebalance_node(parent, &pos, node, nr_entries);
+		if (node) {
+			victim = node;
+			node = parent;
+			goto again;
+		}
+	} else if (nr_entries == 1) {
+		/*
+		 * If we are at the root and only one entry is left we can just
+		 * free this node and update the root pointer.
+		 */
+		ASSERT(node == ifp->if_u1.if_root);
+		ifp->if_u1.if_root = node->ptrs[0];
+		ifp->if_height--;
+		kmem_free(node);
+	}
+}
+
+static void
+xfs_iext_rebalance_leaf(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur,
+	struct xfs_iext_leaf	*leaf,
+	xfs_fileoff_t		offset,
+	int			nr_entries)
+{
+	/*
+	 * If the neighbouring nodes are completely full we might never be able
+	 * to merge our node, and will only delete it once the number of
+	 * entries hits zero.
+	 */
+	if (nr_entries == 0)
+		goto remove_node;
+
+	if (leaf->prev) {
+		int nr_prev = xfs_iext_leaf_nr_entries(ifp, leaf->prev, 0), i;
+
+		if (nr_prev + nr_entries <= RECS_PER_LEAF) {
+			for (i = 0; i < nr_entries; i++)
+				leaf->prev->recs[nr_prev + i] = leaf->recs[i];
+
+			if (cur->leaf == leaf) {
+				cur->leaf = leaf->prev;
+				cur->pos += nr_prev;
+			}
+			goto remove_node;
+		}
+	}
+
+	if (leaf->next) {
+		int nr_next = xfs_iext_leaf_nr_entries(ifp, leaf->next, 0), i;
+
+		if (nr_entries + nr_next <= RECS_PER_LEAF) {
+			/*
+			 * Merge the next node into this node so that we don't
+			 * have to do an additional update of the keys in the
+			 * higher levels.
+			 */
+			for (i = 0; i < nr_next; i++) {
+				leaf->recs[nr_entries + i] =
+					leaf->next->recs[i];
+			}
+
+			if (cur->leaf == leaf->next) {
+				cur->leaf = leaf;
+				cur->pos += nr_entries;
+			}
+
+			offset = xfs_iext_leaf_key(leaf->next, 0);
+			leaf = leaf->next;
+			goto remove_node;
+		}
+	}
+
+	return;
+remove_node:
+	if (leaf->prev)
+		leaf->prev->next = leaf->next;
+	if (leaf->next)
+		leaf->next->prev = leaf->prev;
+	xfs_iext_remove_node(ifp, offset, leaf);
+}
+
+static void
+xfs_iext_free_last_leaf(
+	struct xfs_ifork	*ifp)
+{
+	ifp->if_u1.if_root = NULL;
+	ifp->if_height--;
+	kmem_free(ifp->if_u1.if_root);
+}
+
+void
+xfs_iext_remove(
+	struct xfs_inode	*ip,
+	struct xfs_iext_cursor	*cur,
+	int			state)
+{
+	struct xfs_ifork	*ifp = xfs_iext_state_to_fork(ip, state);
+	struct xfs_iext_leaf	*leaf = cur->leaf;
+	xfs_fileoff_t		offset = xfs_iext_leaf_key(leaf, 0);
+	int			i, nr_entries;
+
+	trace_xfs_iext_remove(ip, cur, state, _RET_IP_);
+
+	ASSERT(ifp->if_height > 0);
+	ASSERT(ifp->if_u1.if_root != NULL);
+	ASSERT(xfs_iext_valid(ifp, cur));
+
+	nr_entries = xfs_iext_leaf_nr_entries(ifp, leaf, cur->pos) - 1;
+	for (i = cur->pos; i < nr_entries; i++)
+		leaf->recs[i] = leaf->recs[i + 1];
+	xfs_iext_rec_clear(&leaf->recs[nr_entries]);
+	ifp->if_bytes -= sizeof(struct xfs_iext_rec);
+
+	if (cur->pos == 0 && nr_entries > 0) {
+		xfs_iext_update_node(ifp, offset, xfs_iext_leaf_key(leaf, 0), 1,
+				leaf);
+		offset = xfs_iext_leaf_key(leaf, 0);
+	} else if (cur->pos == nr_entries) {
+		if (ifp->if_height > 1 && leaf->next)
+			cur->leaf = leaf->next;
+		else
+			cur->leaf = NULL;
+		cur->pos = 0;
+	}
+
+	if (nr_entries >= RECS_PER_LEAF / 2)
+		return;
+
+	if (ifp->if_height > 1)
+		xfs_iext_rebalance_leaf(ifp, cur, leaf, offset, nr_entries);
+	else if (nr_entries == 0)
+		xfs_iext_free_last_leaf(ifp);
+}
+
+/*
+ * Lookup the extent covering bno.
+ *
+ * If there is an extent covering bno return the extent index, and store the
+ * expanded extent structure in *gotp, and the extent cursor in *cur.
+ * If there is no extent covering bno, but there is an extent after it (e.g.
+ * it lies in a hole) return that extent in *gotp and its cursor in *cur
+ * instead.
+ * If bno is beyond the last extent return false, and return an invalid
+ * cursor value.
+ */
+bool
+xfs_iext_lookup_extent(
+	struct xfs_inode	*ip,
+	struct xfs_ifork	*ifp,
+	xfs_fileoff_t		offset,
+	struct xfs_iext_cursor	*cur,
+	struct xfs_bmbt_irec	*gotp)
+{
+	XFS_STATS_INC(ip->i_mount, xs_look_exlist);
+
+	cur->leaf = xfs_iext_find_level(ifp, offset, 1);
+	if (!cur->leaf) {
+		cur->pos = 0;
+		return false;
+	}
+
+	for (cur->pos = 0; cur->pos < xfs_iext_max_recs(ifp); cur->pos++) {
+		struct xfs_iext_rec *rec = cur_rec(cur);
+
+		if (xfs_iext_rec_is_empty(rec))
+			break;
+		if (xfs_iext_rec_cmp(rec, offset) >= 0)
+			goto found;
+	}
+
+	/* Try looking in the next node for an entry > offset */
+	if (ifp->if_height == 1 || !cur->leaf->next)
+		return false;
+	cur->leaf = cur->leaf->next;
+	cur->pos = 0;
+	if (!xfs_iext_valid(ifp, cur))
+		return false;
+found:
+	xfs_iext_get(gotp, cur_rec(cur));
+	return true;
+}
+
+/*
+ * Returns the last extent before end, and if this extent doesn't cover
+ * end, update end to the end of the extent.
+ */
+bool
+xfs_iext_lookup_extent_before(
+	struct xfs_inode	*ip,
+	struct xfs_ifork	*ifp,
+	xfs_fileoff_t		*end,
+	struct xfs_iext_cursor	*cur,
+	struct xfs_bmbt_irec	*gotp)
+{
+	/* could be optimized to not even look up the next on a match.. */
+	if (xfs_iext_lookup_extent(ip, ifp, *end - 1, cur, gotp) &&
+	    gotp->br_startoff <= *end - 1)
+		return true;
+	if (!xfs_iext_prev_extent(ifp, cur, gotp))
+		return false;
+	*end = gotp->br_startoff + gotp->br_blockcount;
+	return true;
+}
+
+void
+xfs_iext_update_extent(
+	struct xfs_inode	*ip,
+	int			state,
+	struct xfs_iext_cursor	*cur,
+	struct xfs_bmbt_irec	*new)
+{
+	struct xfs_ifork	*ifp = xfs_iext_state_to_fork(ip, state);
+
+	if (cur->pos == 0) {
+		struct xfs_bmbt_irec	old;
+
+		xfs_iext_get(&old, cur_rec(cur));
+		if (new->br_startoff != old.br_startoff) {
+			xfs_iext_update_node(ifp, old.br_startoff,
+					new->br_startoff, 1, cur->leaf);
+		}
+	}
+
+	trace_xfs_bmap_pre_update(ip, cur, state, _RET_IP_);
+	xfs_iext_set(cur_rec(cur), new);
+	trace_xfs_bmap_post_update(ip, cur, state, _RET_IP_);
+}
+
+/*
+ * Return true if the cursor points at an extent and return the extent structure
+ * in gotp.  Else return false.
+ */
+bool
+xfs_iext_get_extent(
+	struct xfs_ifork	*ifp,
+	struct xfs_iext_cursor	*cur,
+	struct xfs_bmbt_irec	*gotp)
+{
+	if (!xfs_iext_valid(ifp, cur))
+		return false;
+	xfs_iext_get(gotp, cur_rec(cur));
+	return true;
+}
+
+/*
+ * This is a recursive function, because of that we need to be extremely
+ * careful with stack usage.
+ */
+static void
+xfs_iext_destroy_node(
+	struct xfs_iext_node	*node,
+	int			level)
+{
+	int			i;
+
+	if (level > 1) {
+		for (i = 0; i < KEYS_PER_NODE; i++) {
+			if (node->keys[i] == XFS_IEXT_KEY_INVALID)
+				break;
+			xfs_iext_destroy_node(node->ptrs[i], level - 1);
+		}
+	}
+
+	kmem_free(node);
+}
+
+void
+xfs_iext_destroy(
+	struct xfs_ifork	*ifp)
+{
+	xfs_iext_destroy_node(ifp->if_u1.if_root, ifp->if_height);
+
+	ifp->if_bytes = 0;
+	ifp->if_height = 0;
+	ifp->if_u1.if_root = NULL;
+}
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index 378f8fbc91a7..6b7989038d75 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -24,6 +24,7 @@
 #include "xfs_mount.h"
 #include "xfs_defer.h"
 #include "xfs_inode.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_cksum.h"
 #include "xfs_icache.h"
diff --git a/fs/xfs/libxfs/xfs_inode_fork.c b/fs/xfs/libxfs/xfs_inode_fork.c
index 31840ca24018..1c90ec41e9df 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.c
+++ b/fs/xfs/libxfs/xfs_inode_fork.c
@@ -42,21 +42,27 @@ STATIC int xfs_iformat_local(xfs_inode_t *, xfs_dinode_t *, int, int);
 STATIC int xfs_iformat_extents(xfs_inode_t *, xfs_dinode_t *, int);
 STATIC int xfs_iformat_btree(xfs_inode_t *, xfs_dinode_t *, int);
 
+static inline dev_t xfs_to_linux_dev_t(xfs_dev_t dev)
+{
+	return MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
+}
+
 /*
- * Move inode type and inode format specific information from the
- * on-disk inode to the in-core inode.  For fifos, devs, and sockets
- * this means set if_rdev to the proper value.  For files, directories,
- * and symlinks this means to bring in the in-line data or extent
- * pointers.  For a file in B-tree format, only the root is immediately
- * brought in-core.  The rest will be in-lined in if_extents when it
- * is first referenced (see xfs_iread_extents()).
+ * Copy inode type and data and attr format specific information from the
+ * on-disk inode to the in-core inode and fork structures.  For fifos, devices,
+ * and sockets this means set i_rdev to the proper value.  For files,
+ * directories, and symlinks this means to bring in the in-line data or extent
+ * pointers as well as the attribute fork.  For a fork in B-tree format, only
+ * the root is immediately brought in-core.  The rest will be read in later when
+ * first referenced (see xfs_iread_extents()).
  */
 int
 xfs_iformat_fork(
-	xfs_inode_t		*ip,
-	xfs_dinode_t		*dip)
+	struct xfs_inode	*ip,
+	struct xfs_dinode	*dip)
 {
-	xfs_attr_shortform_t	*atp;
+	struct inode		*inode = VFS_I(ip);
+	struct xfs_attr_shortform *atp;
 	int			size;
 	int			error = 0;
 	xfs_fsize_t             di_size;
@@ -95,8 +101,7 @@ xfs_iformat_fork(
 		return -EFSCORRUPTED;
 	}
 
-	if (unlikely(xfs_is_reflink_inode(ip) &&
-	    (VFS_I(ip)->i_mode & S_IFMT) != S_IFREG)) {
+	if (unlikely(xfs_is_reflink_inode(ip) && !S_ISREG(inode->i_mode))) {
 		xfs_warn(ip->i_mount,
 			"corrupt dinode %llu, wrong file type for reflink.",
 			ip->i_ino);
@@ -115,7 +120,7 @@ xfs_iformat_fork(
 		return -EFSCORRUPTED;
 	}
 
-	switch (VFS_I(ip)->i_mode & S_IFMT) {
+	switch (inode->i_mode & S_IFMT) {
 	case S_IFIFO:
 	case S_IFCHR:
 	case S_IFBLK:
@@ -126,7 +131,7 @@ xfs_iformat_fork(
 			return -EFSCORRUPTED;
 		}
 		ip->i_d.di_size = 0;
-		ip->i_df.if_u2.if_rdev = xfs_dinode_get_rdev(dip);
+		inode->i_rdev = xfs_to_linux_dev_t(xfs_dinode_get_rdev(dip));
 		break;
 
 	case S_IFREG:
@@ -184,8 +189,7 @@ xfs_iformat_fork(
 		return error;
 
 	/* Check inline dir contents. */
-	if (S_ISDIR(VFS_I(ip)->i_mode) &&
-	    dip->di_format == XFS_DINODE_FMT_LOCAL) {
+	if (S_ISDIR(inode->i_mode) && dip->di_format == XFS_DINODE_FMT_LOCAL) {
 		error = xfs_dir2_sf_verify(ip);
 		if (error) {
 			xfs_idestroy_fork(ip, XFS_DATA_FORK);
@@ -265,19 +269,14 @@ xfs_init_local_fork(
 	if (zero_terminate)
 		mem_size++;
 
-	if (size == 0)
-		ifp->if_u1.if_data = NULL;
-	else if (mem_size <= sizeof(ifp->if_u2.if_inline_data))
-		ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
-	else {
+	if (size) {
 		real_size = roundup(mem_size, 4);
 		ifp->if_u1.if_data = kmem_alloc(real_size, KM_SLEEP | KM_NOFS);
-	}
-
-	if (size) {
 		memcpy(ifp->if_u1.if_data, data, size);
 		if (zero_terminate)
 			ifp->if_u1.if_data[size] = '\0';
+	} else {
+		ifp->if_u1.if_data = NULL;
 	}
 
 	ifp->if_bytes = size;
@@ -288,13 +287,6 @@ xfs_init_local_fork(
 
 /*
  * The file is in-lined in the on-disk inode.
- * If it fits into if_inline_data, then copy
- * it there, otherwise allocate a buffer for it
- * and copy the data there.  Either way, set
- * if_data to point at the data.
- * If we allocate a buffer for the data, make
- * sure that its size is a multiple of 4 and
- * record the real size in i_real_bytes.
  */
 STATIC int
 xfs_iformat_local(
@@ -324,9 +316,7 @@ xfs_iformat_local(
 
 /*
  * The file consists of a set of extents all of which fit into the on-disk
- * inode.  If there are few enough extents to fit into the if_inline_ext, then
- * copy them there.  Otherwise allocate a buffer for them and copy them into it.
- * Either way, set if_extents to point at the extents.
+ * inode.
  */
 STATIC int
 xfs_iformat_extents(
@@ -336,9 +326,12 @@ xfs_iformat_extents(
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	int			state = xfs_bmap_fork_to_state(whichfork);
 	int			nex = XFS_DFORK_NEXTENTS(dip, whichfork);
 	int			size = nex * sizeof(xfs_bmbt_rec_t);
+	struct xfs_iext_cursor	icur;
 	struct xfs_bmbt_rec	*dp;
+	struct xfs_bmbt_irec	new;
 	int			i;
 
 	/*
@@ -354,27 +347,25 @@ xfs_iformat_extents(
 	}
 
 	ifp->if_real_bytes = 0;
-	if (nex == 0)
-		ifp->if_u1.if_extents = NULL;
-	else if (nex <= XFS_INLINE_EXTS)
-		ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
-	else
-		xfs_iext_add(ifp, 0, nex);
-
-	ifp->if_bytes = size;
+	ifp->if_bytes = 0;
+	ifp->if_u1.if_root = NULL;
+	ifp->if_height = 0;
 	if (size) {
 		dp = (xfs_bmbt_rec_t *) XFS_DFORK_PTR(dip, whichfork);
+
+		xfs_iext_first(ifp, &icur);
 		for (i = 0; i < nex; i++, dp++) {
-			xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i);
-			ep->l0 = get_unaligned_be64(&dp->l0);
-			ep->l1 = get_unaligned_be64(&dp->l1);
-			if (!xfs_bmbt_validate_extent(mp, whichfork, ep)) {
+			xfs_bmbt_disk_get_all(dp, &new);
+			if (!xfs_bmbt_validate_extent(mp, whichfork, &new)) {
 				XFS_ERROR_REPORT("xfs_iformat_extents(2)",
 						 XFS_ERRLEVEL_LOW, mp);
 				return -EFSCORRUPTED;
 			}
+
+			xfs_iext_insert(ip, &icur, &new, state);
+			trace_xfs_read_extent(ip, &icur, state, _THIS_IP_);
+			xfs_iext_next(ifp, &icur);
 		}
-		XFS_BMAP_TRACE_EXLIST(ip, nex, whichfork);
 	}
 	ifp->if_flags |= XFS_IFEXTENTS;
 	return 0;
@@ -440,47 +431,14 @@ xfs_iformat_btree(
 	ifp->if_flags &= ~XFS_IFEXTENTS;
 	ifp->if_flags |= XFS_IFBROOT;
 
+	ifp->if_real_bytes = 0;
+	ifp->if_bytes = 0;
+	ifp->if_u1.if_root = NULL;
+	ifp->if_height = 0;
 	return 0;
 }
 
 /*
- * Read in extents from a btree-format inode.
- * Allocate and fill in if_extents.  Real work is done in xfs_bmap.c.
- */
-int
-xfs_iread_extents(
-	xfs_trans_t	*tp,
-	xfs_inode_t	*ip,
-	int		whichfork)
-{
-	int		error;
-	xfs_ifork_t	*ifp;
-	xfs_extnum_t	nextents;
-
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-
-	if (unlikely(XFS_IFORK_FORMAT(ip, whichfork) != XFS_DINODE_FMT_BTREE)) {
-		XFS_ERROR_REPORT("xfs_iread_extents", XFS_ERRLEVEL_LOW,
-				 ip->i_mount);
-		return -EFSCORRUPTED;
-	}
-	nextents = XFS_IFORK_NEXTENTS(ip, whichfork);
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-
-	/*
-	 * We know that the size is valid (it's checked in iformat_btree)
-	 */
-	ifp->if_bytes = ifp->if_real_bytes = 0;
-	xfs_iext_add(ifp, 0, nextents);
-	error = xfs_bmap_read_extents(tp, ip, whichfork);
-	if (error) {
-		xfs_iext_destroy(ifp);
-		return error;
-	}
-	ifp->if_flags |= XFS_IFEXTENTS;
-	return 0;
-}
-/*
  * Reallocate the space for if_broot based on the number of records
  * being added or deleted as indicated in rec_diff.  Move the records
  * and pointers in if_broot to fit the new size.  When shrinking this
@@ -644,26 +602,9 @@ xfs_idata_realloc(
 	ASSERT(new_size >= 0);
 
 	if (new_size == 0) {
-		if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
-			kmem_free(ifp->if_u1.if_data);
-		}
+		kmem_free(ifp->if_u1.if_data);
 		ifp->if_u1.if_data = NULL;
 		real_size = 0;
-	} else if (new_size <= sizeof(ifp->if_u2.if_inline_data)) {
-		/*
-		 * If the valid extents/data can fit in if_inline_ext/data,
-		 * copy them from the malloc'd vector and free it.
-		 */
-		if (ifp->if_u1.if_data == NULL) {
-			ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
-		} else if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
-			ASSERT(ifp->if_real_bytes != 0);
-			memcpy(ifp->if_u2.if_inline_data, ifp->if_u1.if_data,
-			      new_size);
-			kmem_free(ifp->if_u1.if_data);
-			ifp->if_u1.if_data = ifp->if_u2.if_inline_data;
-		}
-		real_size = 0;
 	} else {
 		/*
 		 * Stuck with malloc/realloc.
@@ -677,7 +618,7 @@ xfs_idata_realloc(
 			ASSERT(ifp->if_real_bytes == 0);
 			ifp->if_u1.if_data = kmem_alloc(real_size,
 							KM_SLEEP | KM_NOFS);
-		} else if (ifp->if_u1.if_data != ifp->if_u2.if_inline_data) {
+		} else {
 			/*
 			 * Only do the realloc if the underlying size
 			 * is really changing.
@@ -688,12 +629,6 @@ xfs_idata_realloc(
 							real_size,
 							KM_SLEEP | KM_NOFS);
 			}
-		} else {
-			ASSERT(ifp->if_real_bytes == 0);
-			ifp->if_u1.if_data = kmem_alloc(real_size,
-							KM_SLEEP | KM_NOFS);
-			memcpy(ifp->if_u1.if_data, ifp->if_u2.if_inline_data,
-				ifp->if_bytes);
 		}
 	}
 	ifp->if_real_bytes = real_size;
@@ -721,23 +656,18 @@ xfs_idestroy_fork(
 	 * so check and free it up if we do.
 	 */
 	if (XFS_IFORK_FORMAT(ip, whichfork) == XFS_DINODE_FMT_LOCAL) {
-		if ((ifp->if_u1.if_data != ifp->if_u2.if_inline_data) &&
-		    (ifp->if_u1.if_data != NULL)) {
+		if (ifp->if_u1.if_data != NULL) {
 			ASSERT(ifp->if_real_bytes != 0);
 			kmem_free(ifp->if_u1.if_data);
 			ifp->if_u1.if_data = NULL;
 			ifp->if_real_bytes = 0;
 		}
-	} else if ((ifp->if_flags & XFS_IFEXTENTS) &&
-		   ((ifp->if_flags & XFS_IFEXTIREC) ||
-		    ((ifp->if_u1.if_extents != NULL) &&
-		     (ifp->if_u1.if_extents != ifp->if_u2.if_inline_ext)))) {
-		ASSERT(ifp->if_real_bytes != 0);
+	} else if ((ifp->if_flags & XFS_IFEXTENTS) && ifp->if_height) {
 		xfs_iext_destroy(ifp);
 	}
-	ASSERT(ifp->if_u1.if_extents == NULL ||
-	       ifp->if_u1.if_extents == ifp->if_u2.if_inline_ext);
+
 	ASSERT(ifp->if_real_bytes == 0);
+
 	if (whichfork == XFS_ATTR_FORK) {
 		kmem_zone_free(xfs_ifork_zone, ip->i_afp);
 		ip->i_afp = NULL;
@@ -747,19 +677,9 @@ xfs_idestroy_fork(
 	}
 }
 
-/* Count number of incore extents based on if_bytes */
-xfs_extnum_t
-xfs_iext_count(struct xfs_ifork *ifp)
-{
-	return ifp->if_bytes / (uint)sizeof(xfs_bmbt_rec_t);
-}
-
 /*
  * Convert in-core extents to on-disk form
  *
- * For either the data or attr fork in extent format, we need to endian convert
- * the in-core extent as we place them into the on-disk inode.
- *
  * In the case of the data fork, the in-core and on-disk fork sizes can be
  * different due to delayed allocation extents. We only copy on-disk extents
  * here, so callers must always use the physical fork size to determine the
@@ -768,53 +688,32 @@ xfs_iext_count(struct xfs_ifork *ifp)
  */
 int
 xfs_iextents_copy(
-	xfs_inode_t		*ip,
-	xfs_bmbt_rec_t		*dp,
+	struct xfs_inode	*ip,
+	struct xfs_bmbt_rec	*dp,
 	int			whichfork)
 {
-	int			copied;
-	int			i;
-	xfs_ifork_t		*ifp;
-	int			nrecs;
-	xfs_fsblock_t		start_block;
+	int			state = xfs_bmap_fork_to_state(whichfork);
+	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, whichfork);
+	struct xfs_iext_cursor	icur;
+	struct xfs_bmbt_irec	rec;
+	int			copied = 0;
 
-	ifp = XFS_IFORK_PTR(ip, whichfork);
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL|XFS_ILOCK_SHARED));
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED));
 	ASSERT(ifp->if_bytes > 0);
 
-	nrecs = xfs_iext_count(ifp);
-	XFS_BMAP_TRACE_EXLIST(ip, nrecs, whichfork);
-	ASSERT(nrecs > 0);
-
-	/*
-	 * There are some delayed allocation extents in the
-	 * inode, so copy the extents one at a time and skip
-	 * the delayed ones.  There must be at least one
-	 * non-delayed extent.
-	 */
-	copied = 0;
-	for (i = 0; i < nrecs; i++) {
-		xfs_bmbt_rec_host_t *ep = xfs_iext_get_ext(ifp, i);
-
-		ASSERT(xfs_bmbt_validate_extent(ip->i_mount, whichfork, ep));
-
-		start_block = xfs_bmbt_get_startblock(ep);
-		if (isnullstartblock(start_block)) {
-			/*
-			 * It's a delayed allocation extent, so skip it.
-			 */
+	for_each_xfs_iext(ifp, &icur, &rec) {
+		if (isnullstartblock(rec.br_startblock))
 			continue;
-		}
-
-		/* Translate to on disk format */
-		put_unaligned_be64(ep->l0, &dp->l0);
-		put_unaligned_be64(ep->l1, &dp->l1);
+		ASSERT(xfs_bmbt_validate_extent(ip->i_mount, whichfork, &rec));
+		xfs_bmbt_disk_set_all(dp, &rec);
+		trace_xfs_write_extent(ip, &icur, state, _RET_IP_);
+		copied += sizeof(struct xfs_bmbt_rec);
 		dp++;
-		copied++;
 	}
-	ASSERT(copied != 0);
 
-	return (copied * (uint)sizeof(xfs_bmbt_rec_t));
+	ASSERT(copied > 0);
+	ASSERT(copied <= ifp->if_bytes);
+	return copied;
 }
 
 /*
@@ -872,7 +771,6 @@ xfs_iflush_fork(
 		       !(iip->ili_fields & extflag[whichfork]));
 		if ((iip->ili_fields & extflag[whichfork]) &&
 		    (ifp->if_bytes > 0)) {
-			ASSERT(xfs_iext_get_ext(ifp, 0));
 			ASSERT(XFS_IFORK_NEXTENTS(ip, whichfork) > 0);
 			(void)xfs_iextents_copy(ip, (xfs_bmbt_rec_t *)cp,
 				whichfork);
@@ -894,16 +792,7 @@ xfs_iflush_fork(
 	case XFS_DINODE_FMT_DEV:
 		if (iip->ili_fields & XFS_ILOG_DEV) {
 			ASSERT(whichfork == XFS_DATA_FORK);
-			xfs_dinode_put_rdev(dip, ip->i_df.if_u2.if_rdev);
-		}
-		break;
-
-	case XFS_DINODE_FMT_UUID:
-		if (iip->ili_fields & XFS_ILOG_UUID) {
-			ASSERT(whichfork == XFS_DATA_FORK);
-			memcpy(XFS_DFORK_DPTR(dip),
-			       &ip->i_df.if_u2.if_uuid,
-			       sizeof(uuid_t));
+			xfs_dinode_put_rdev(dip, sysv_encode_dev(VFS_I(ip)->i_rdev));
 		}
 		break;
 
@@ -913,33 +802,6 @@ xfs_iflush_fork(
 	}
 }
 
-/*
- * Return a pointer to the extent record at file index idx.
- */
-xfs_bmbt_rec_host_t *
-xfs_iext_get_ext(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	idx)		/* index of target extent */
-{
-	ASSERT(idx >= 0);
-	ASSERT(idx < xfs_iext_count(ifp));
-
-	if ((ifp->if_flags & XFS_IFEXTIREC) && (idx == 0)) {
-		return ifp->if_u1.if_ext_irec->er_extbuf;
-	} else if (ifp->if_flags & XFS_IFEXTIREC) {
-		xfs_ext_irec_t	*erp;		/* irec pointer */
-		int		erp_idx = 0;	/* irec index */
-		xfs_extnum_t	page_idx = idx;	/* ext index in target list */
-
-		erp = xfs_iext_idx_to_irec(ifp, &page_idx, &erp_idx, 0);
-		return &erp->er_extbuf[page_idx];
-	} else if (ifp->if_bytes) {
-		return &ifp->if_u1.if_extents[idx];
-	} else {
-		return NULL;
-	}
-}
-
 /* Convert bmap state flags to an inode fork. */
 struct xfs_ifork *
 xfs_iext_state_to_fork(
@@ -954,1011 +816,6 @@ xfs_iext_state_to_fork(
 }
 
 /*
- * Insert new item(s) into the extent records for incore inode
- * fork 'ifp'.  'count' new items are inserted at index 'idx'.
- */
-void
-xfs_iext_insert(
-	xfs_inode_t	*ip,		/* incore inode pointer */
-	xfs_extnum_t	idx,		/* starting index of new items */
-	xfs_extnum_t	count,		/* number of inserted items */
-	xfs_bmbt_irec_t	*new,		/* items to insert */
-	int		state)		/* type of extent conversion */
-{
-	xfs_ifork_t	*ifp = xfs_iext_state_to_fork(ip, state);
-	xfs_extnum_t	i;		/* extent record index */
-
-	trace_xfs_iext_insert(ip, idx, new, state, _RET_IP_);
-
-	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
-	xfs_iext_add(ifp, idx, count);
-	for (i = idx; i < idx + count; i++, new++)
-		xfs_bmbt_set_all(xfs_iext_get_ext(ifp, i), new);
-}
-
-/*
- * This is called when the amount of space required for incore file
- * extents needs to be increased. The ext_diff parameter stores the
- * number of new extents being added and the idx parameter contains
- * the extent index where the new extents will be added. If the new
- * extents are being appended, then we just need to (re)allocate and
- * initialize the space. Otherwise, if the new extents are being
- * inserted into the middle of the existing entries, a bit more work
- * is required to make room for the new extents to be inserted. The
- * caller is responsible for filling in the new extent entries upon
- * return.
- */
-void
-xfs_iext_add(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	idx,		/* index to begin adding exts */
-	int		ext_diff)	/* number of extents to add */
-{
-	int		byte_diff;	/* new bytes being added */
-	int		new_size;	/* size of extents after adding */
-	xfs_extnum_t	nextents;	/* number of extents in file */
-
-	nextents = xfs_iext_count(ifp);
-	ASSERT((idx >= 0) && (idx <= nextents));
-	byte_diff = ext_diff * sizeof(xfs_bmbt_rec_t);
-	new_size = ifp->if_bytes + byte_diff;
-	/*
-	 * If the new number of extents (nextents + ext_diff)
-	 * fits inside the inode, then continue to use the inline
-	 * extent buffer.
-	 */
-	if (nextents + ext_diff <= XFS_INLINE_EXTS) {
-		if (idx < nextents) {
-			memmove(&ifp->if_u2.if_inline_ext[idx + ext_diff],
-				&ifp->if_u2.if_inline_ext[idx],
-				(nextents - idx) * sizeof(xfs_bmbt_rec_t));
-			memset(&ifp->if_u2.if_inline_ext[idx], 0, byte_diff);
-		}
-		ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
-		ifp->if_real_bytes = 0;
-	}
-	/*
-	 * Otherwise use a linear (direct) extent list.
-	 * If the extents are currently inside the inode,
-	 * xfs_iext_realloc_direct will switch us from
-	 * inline to direct extent allocation mode.
-	 */
-	else if (nextents + ext_diff <= XFS_LINEAR_EXTS) {
-		xfs_iext_realloc_direct(ifp, new_size);
-		if (idx < nextents) {
-			memmove(&ifp->if_u1.if_extents[idx + ext_diff],
-				&ifp->if_u1.if_extents[idx],
-				(nextents - idx) * sizeof(xfs_bmbt_rec_t));
-			memset(&ifp->if_u1.if_extents[idx], 0, byte_diff);
-		}
-	}
-	/* Indirection array */
-	else {
-		xfs_ext_irec_t	*erp;
-		int		erp_idx = 0;
-		int		page_idx = idx;
-
-		ASSERT(nextents + ext_diff > XFS_LINEAR_EXTS);
-		if (ifp->if_flags & XFS_IFEXTIREC) {
-			erp = xfs_iext_idx_to_irec(ifp, &page_idx, &erp_idx, 1);
-		} else {
-			xfs_iext_irec_init(ifp);
-			ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-			erp = ifp->if_u1.if_ext_irec;
-		}
-		/* Extents fit in target extent page */
-		if (erp && erp->er_extcount + ext_diff <= XFS_LINEAR_EXTS) {
-			if (page_idx < erp->er_extcount) {
-				memmove(&erp->er_extbuf[page_idx + ext_diff],
-					&erp->er_extbuf[page_idx],
-					(erp->er_extcount - page_idx) *
-					sizeof(xfs_bmbt_rec_t));
-				memset(&erp->er_extbuf[page_idx], 0, byte_diff);
-			}
-			erp->er_extcount += ext_diff;
-			xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, ext_diff);
-		}
-		/* Insert a new extent page */
-		else if (erp) {
-			xfs_iext_add_indirect_multi(ifp,
-				erp_idx, page_idx, ext_diff);
-		}
-		/*
-		 * If extent(s) are being appended to the last page in
-		 * the indirection array and the new extent(s) don't fit
-		 * in the page, then erp is NULL and erp_idx is set to
-		 * the next index needed in the indirection array.
-		 */
-		else {
-			uint	count = ext_diff;
-
-			while (count) {
-				erp = xfs_iext_irec_new(ifp, erp_idx);
-				erp->er_extcount = min(count, XFS_LINEAR_EXTS);
-				count -= erp->er_extcount;
-				if (count)
-					erp_idx++;
-			}
-		}
-	}
-	ifp->if_bytes = new_size;
-}
-
-/*
- * This is called when incore extents are being added to the indirection
- * array and the new extents do not fit in the target extent list. The
- * erp_idx parameter contains the irec index for the target extent list
- * in the indirection array, and the idx parameter contains the extent
- * index within the list. The number of extents being added is stored
- * in the count parameter.
- *
- *    |-------|   |-------|
- *    |       |   |       |    idx - number of extents before idx
- *    |  idx  |   | count |
- *    |       |   |       |    count - number of extents being inserted at idx
- *    |-------|   |-------|
- *    | count |   | nex2  |    nex2 - number of extents after idx + count
- *    |-------|   |-------|
- */
-void
-xfs_iext_add_indirect_multi(
-	xfs_ifork_t	*ifp,			/* inode fork pointer */
-	int		erp_idx,		/* target extent irec index */
-	xfs_extnum_t	idx,			/* index within target list */
-	int		count)			/* new extents being added */
-{
-	int		byte_diff;		/* new bytes being added */
-	xfs_ext_irec_t	*erp;			/* pointer to irec entry */
-	xfs_extnum_t	ext_diff;		/* number of extents to add */
-	xfs_extnum_t	ext_cnt;		/* new extents still needed */
-	xfs_extnum_t	nex2;			/* extents after idx + count */
-	xfs_bmbt_rec_t	*nex2_ep = NULL;	/* temp list for nex2 extents */
-	int		nlists;			/* number of irec's (lists) */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	erp = &ifp->if_u1.if_ext_irec[erp_idx];
-	nex2 = erp->er_extcount - idx;
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-
-	/*
-	 * Save second part of target extent list
-	 * (all extents past */
-	if (nex2) {
-		byte_diff = nex2 * sizeof(xfs_bmbt_rec_t);
-		nex2_ep = (xfs_bmbt_rec_t *) kmem_alloc(byte_diff, KM_NOFS);
-		memmove(nex2_ep, &erp->er_extbuf[idx], byte_diff);
-		erp->er_extcount -= nex2;
-		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, -nex2);
-		memset(&erp->er_extbuf[idx], 0, byte_diff);
-	}
-
-	/*
-	 * Add the new extents to the end of the target
-	 * list, then allocate new irec record(s) and
-	 * extent buffer(s) as needed to store the rest
-	 * of the new extents.
-	 */
-	ext_cnt = count;
-	ext_diff = MIN(ext_cnt, (int)XFS_LINEAR_EXTS - erp->er_extcount);
-	if (ext_diff) {
-		erp->er_extcount += ext_diff;
-		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, ext_diff);
-		ext_cnt -= ext_diff;
-	}
-	while (ext_cnt) {
-		erp_idx++;
-		erp = xfs_iext_irec_new(ifp, erp_idx);
-		ext_diff = MIN(ext_cnt, (int)XFS_LINEAR_EXTS);
-		erp->er_extcount = ext_diff;
-		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, ext_diff);
-		ext_cnt -= ext_diff;
-	}
-
-	/* Add nex2 extents back to indirection array */
-	if (nex2) {
-		xfs_extnum_t	ext_avail;
-		int		i;
-
-		byte_diff = nex2 * sizeof(xfs_bmbt_rec_t);
-		ext_avail = XFS_LINEAR_EXTS - erp->er_extcount;
-		i = 0;
-		/*
-		 * If nex2 extents fit in the current page, append
-		 * nex2_ep after the new extents.
-		 */
-		if (nex2 <= ext_avail) {
-			i = erp->er_extcount;
-		}
-		/*
-		 * Otherwise, check if space is available in the
-		 * next page.
-		 */
-		else if ((erp_idx < nlists - 1) &&
-			 (nex2 <= (ext_avail = XFS_LINEAR_EXTS -
-			  ifp->if_u1.if_ext_irec[erp_idx+1].er_extcount))) {
-			erp_idx++;
-			erp++;
-			/* Create a hole for nex2 extents */
-			memmove(&erp->er_extbuf[nex2], erp->er_extbuf,
-				erp->er_extcount * sizeof(xfs_bmbt_rec_t));
-		}
-		/*
-		 * Final choice, create a new extent page for
-		 * nex2 extents.
-		 */
-		else {
-			erp_idx++;
-			erp = xfs_iext_irec_new(ifp, erp_idx);
-		}
-		memmove(&erp->er_extbuf[i], nex2_ep, byte_diff);
-		kmem_free(nex2_ep);
-		erp->er_extcount += nex2;
-		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, nex2);
-	}
-}
-
-/*
- * This is called when the amount of space required for incore file
- * extents needs to be decreased. The ext_diff parameter stores the
- * number of extents to be removed and the idx parameter contains
- * the extent index where the extents will be removed from.
- *
- * If the amount of space needed has decreased below the linear
- * limit, XFS_IEXT_BUFSZ, then switch to using the contiguous
- * extent array.  Otherwise, use kmem_realloc() to adjust the
- * size to what is needed.
- */
-void
-xfs_iext_remove(
-	xfs_inode_t	*ip,		/* incore inode pointer */
-	xfs_extnum_t	idx,		/* index to begin removing exts */
-	int		ext_diff,	/* number of extents to remove */
-	int		state)		/* type of extent conversion */
-{
-	xfs_ifork_t	*ifp = xfs_iext_state_to_fork(ip, state);
-	xfs_extnum_t	nextents;	/* number of extents in file */
-	int		new_size;	/* size of extents after removal */
-
-	trace_xfs_iext_remove(ip, idx, state, _RET_IP_);
-
-	ASSERT(ext_diff > 0);
-	nextents = xfs_iext_count(ifp);
-	new_size = (nextents - ext_diff) * sizeof(xfs_bmbt_rec_t);
-
-	if (new_size == 0) {
-		xfs_iext_destroy(ifp);
-	} else if (ifp->if_flags & XFS_IFEXTIREC) {
-		xfs_iext_remove_indirect(ifp, idx, ext_diff);
-	} else if (ifp->if_real_bytes) {
-		xfs_iext_remove_direct(ifp, idx, ext_diff);
-	} else {
-		xfs_iext_remove_inline(ifp, idx, ext_diff);
-	}
-	ifp->if_bytes = new_size;
-}
-
-/*
- * This removes ext_diff extents from the inline buffer, beginning
- * at extent index idx.
- */
-void
-xfs_iext_remove_inline(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	idx,		/* index to begin removing exts */
-	int		ext_diff)	/* number of extents to remove */
-{
-	int		nextents;	/* number of extents in file */
-
-	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC));
-	ASSERT(idx < XFS_INLINE_EXTS);
-	nextents = xfs_iext_count(ifp);
-	ASSERT(((nextents - ext_diff) > 0) &&
-		(nextents - ext_diff) < XFS_INLINE_EXTS);
-
-	if (idx + ext_diff < nextents) {
-		memmove(&ifp->if_u2.if_inline_ext[idx],
-			&ifp->if_u2.if_inline_ext[idx + ext_diff],
-			(nextents - (idx + ext_diff)) *
-			 sizeof(xfs_bmbt_rec_t));
-		memset(&ifp->if_u2.if_inline_ext[nextents - ext_diff],
-			0, ext_diff * sizeof(xfs_bmbt_rec_t));
-	} else {
-		memset(&ifp->if_u2.if_inline_ext[idx], 0,
-			ext_diff * sizeof(xfs_bmbt_rec_t));
-	}
-}
-
-/*
- * This removes ext_diff extents from a linear (direct) extent list,
- * beginning at extent index idx. If the extents are being removed
- * from the end of the list (ie. truncate) then we just need to re-
- * allocate the list to remove the extra space. Otherwise, if the
- * extents are being removed from the middle of the existing extent
- * entries, then we first need to move the extent records beginning
- * at idx + ext_diff up in the list to overwrite the records being
- * removed, then remove the extra space via kmem_realloc.
- */
-void
-xfs_iext_remove_direct(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	idx,		/* index to begin removing exts */
-	int		ext_diff)	/* number of extents to remove */
-{
-	xfs_extnum_t	nextents;	/* number of extents in file */
-	int		new_size;	/* size of extents after removal */
-
-	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC));
-	new_size = ifp->if_bytes -
-		(ext_diff * sizeof(xfs_bmbt_rec_t));
-	nextents = xfs_iext_count(ifp);
-
-	if (new_size == 0) {
-		xfs_iext_destroy(ifp);
-		return;
-	}
-	/* Move extents up in the list (if needed) */
-	if (idx + ext_diff < nextents) {
-		memmove(&ifp->if_u1.if_extents[idx],
-			&ifp->if_u1.if_extents[idx + ext_diff],
-			(nextents - (idx + ext_diff)) *
-			 sizeof(xfs_bmbt_rec_t));
-	}
-	memset(&ifp->if_u1.if_extents[nextents - ext_diff],
-		0, ext_diff * sizeof(xfs_bmbt_rec_t));
-	/*
-	 * Reallocate the direct extent list. If the extents
-	 * will fit inside the inode then xfs_iext_realloc_direct
-	 * will switch from direct to inline extent allocation
-	 * mode for us.
-	 */
-	xfs_iext_realloc_direct(ifp, new_size);
-	ifp->if_bytes = new_size;
-}
-
-/*
- * This is called when incore extents are being removed from the
- * indirection array and the extents being removed span multiple extent
- * buffers. The idx parameter contains the file extent index where we
- * want to begin removing extents, and the count parameter contains
- * how many extents need to be removed.
- *
- *    |-------|   |-------|
- *    | nex1  |   |       |    nex1 - number of extents before idx
- *    |-------|   | count |
- *    |       |   |       |    count - number of extents being removed at idx
- *    | count |   |-------|
- *    |       |   | nex2  |    nex2 - number of extents after idx + count
- *    |-------|   |-------|
- */
-void
-xfs_iext_remove_indirect(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	idx,		/* index to begin removing extents */
-	int		count)		/* number of extents to remove */
-{
-	xfs_ext_irec_t	*erp;		/* indirection array pointer */
-	int		erp_idx = 0;	/* indirection array index */
-	xfs_extnum_t	ext_cnt;	/* extents left to remove */
-	xfs_extnum_t	ext_diff;	/* extents to remove in current list */
-	xfs_extnum_t	nex1;		/* number of extents before idx */
-	xfs_extnum_t	nex2;		/* extents after idx + count */
-	int		page_idx = idx;	/* index in target extent list */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	erp = xfs_iext_idx_to_irec(ifp,  &page_idx, &erp_idx, 0);
-	ASSERT(erp != NULL);
-	nex1 = page_idx;
-	ext_cnt = count;
-	while (ext_cnt) {
-		nex2 = MAX((erp->er_extcount - (nex1 + ext_cnt)), 0);
-		ext_diff = MIN(ext_cnt, (erp->er_extcount - nex1));
-		/*
-		 * Check for deletion of entire list;
-		 * xfs_iext_irec_remove() updates extent offsets.
-		 */
-		if (ext_diff == erp->er_extcount) {
-			xfs_iext_irec_remove(ifp, erp_idx);
-			ext_cnt -= ext_diff;
-			nex1 = 0;
-			if (ext_cnt) {
-				ASSERT(erp_idx < ifp->if_real_bytes /
-					XFS_IEXT_BUFSZ);
-				erp = &ifp->if_u1.if_ext_irec[erp_idx];
-				nex1 = 0;
-				continue;
-			} else {
-				break;
-			}
-		}
-		/* Move extents up (if needed) */
-		if (nex2) {
-			memmove(&erp->er_extbuf[nex1],
-				&erp->er_extbuf[nex1 + ext_diff],
-				nex2 * sizeof(xfs_bmbt_rec_t));
-		}
-		/* Zero out rest of page */
-		memset(&erp->er_extbuf[nex1 + nex2], 0, (XFS_IEXT_BUFSZ -
-			((nex1 + nex2) * sizeof(xfs_bmbt_rec_t))));
-		/* Update remaining counters */
-		erp->er_extcount -= ext_diff;
-		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1, -ext_diff);
-		ext_cnt -= ext_diff;
-		nex1 = 0;
-		erp_idx++;
-		erp++;
-	}
-	ifp->if_bytes -= count * sizeof(xfs_bmbt_rec_t);
-	xfs_iext_irec_compact(ifp);
-}
-
-/*
- * Create, destroy, or resize a linear (direct) block of extents.
- */
-void
-xfs_iext_realloc_direct(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		new_size)	/* new size of extents after adding */
-{
-	int		rnew_size;	/* real new size of extents */
-
-	rnew_size = new_size;
-
-	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC) ||
-		((new_size >= 0) && (new_size <= XFS_IEXT_BUFSZ) &&
-		 (new_size != ifp->if_real_bytes)));
-
-	/* Free extent records */
-	if (new_size == 0) {
-		xfs_iext_destroy(ifp);
-	}
-	/* Resize direct extent list and zero any new bytes */
-	else if (ifp->if_real_bytes) {
-		/* Check if extents will fit inside the inode */
-		if (new_size <= XFS_INLINE_EXTS * sizeof(xfs_bmbt_rec_t)) {
-			xfs_iext_direct_to_inline(ifp, new_size /
-				(uint)sizeof(xfs_bmbt_rec_t));
-			ifp->if_bytes = new_size;
-			return;
-		}
-		if (!is_power_of_2(new_size)){
-			rnew_size = roundup_pow_of_two(new_size);
-		}
-		if (rnew_size != ifp->if_real_bytes) {
-			ifp->if_u1.if_extents =
-				kmem_realloc(ifp->if_u1.if_extents,
-						rnew_size, KM_NOFS);
-		}
-		if (rnew_size > ifp->if_real_bytes) {
-			memset(&ifp->if_u1.if_extents[ifp->if_bytes /
-				(uint)sizeof(xfs_bmbt_rec_t)], 0,
-				rnew_size - ifp->if_real_bytes);
-		}
-	}
-	/* Switch from the inline extent buffer to a direct extent list */
-	else {
-		if (!is_power_of_2(new_size)) {
-			rnew_size = roundup_pow_of_two(new_size);
-		}
-		xfs_iext_inline_to_direct(ifp, rnew_size);
-	}
-	ifp->if_real_bytes = rnew_size;
-	ifp->if_bytes = new_size;
-}
-
-/*
- * Switch from linear (direct) extent records to inline buffer.
- */
-void
-xfs_iext_direct_to_inline(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	nextents)	/* number of extents in file */
-{
-	ASSERT(ifp->if_flags & XFS_IFEXTENTS);
-	ASSERT(nextents <= XFS_INLINE_EXTS);
-	/*
-	 * The inline buffer was zeroed when we switched
-	 * from inline to direct extent allocation mode,
-	 * so we don't need to clear it here.
-	 */
-	memcpy(ifp->if_u2.if_inline_ext, ifp->if_u1.if_extents,
-		nextents * sizeof(xfs_bmbt_rec_t));
-	kmem_free(ifp->if_u1.if_extents);
-	ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
-	ifp->if_real_bytes = 0;
-}
-
-/*
- * Switch from inline buffer to linear (direct) extent records.
- * new_size should already be rounded up to the next power of 2
- * by the caller (when appropriate), so use new_size as it is.
- * However, since new_size may be rounded up, we can't update
- * if_bytes here. It is the caller's responsibility to update
- * if_bytes upon return.
- */
-void
-xfs_iext_inline_to_direct(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		new_size)	/* number of extents in file */
-{
-	ifp->if_u1.if_extents = kmem_alloc(new_size, KM_NOFS);
-	memset(ifp->if_u1.if_extents, 0, new_size);
-	if (ifp->if_bytes) {
-		memcpy(ifp->if_u1.if_extents, ifp->if_u2.if_inline_ext,
-			ifp->if_bytes);
-		memset(ifp->if_u2.if_inline_ext, 0, XFS_INLINE_EXTS *
-			sizeof(xfs_bmbt_rec_t));
-	}
-	ifp->if_real_bytes = new_size;
-}
-
-/*
- * Resize an extent indirection array to new_size bytes.
- */
-STATIC void
-xfs_iext_realloc_indirect(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		new_size)	/* new indirection array size */
-{
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	ASSERT(ifp->if_real_bytes);
-	ASSERT((new_size >= 0) &&
-	       (new_size != ((ifp->if_real_bytes / XFS_IEXT_BUFSZ) *
-			     sizeof(xfs_ext_irec_t))));
-	if (new_size == 0) {
-		xfs_iext_destroy(ifp);
-	} else {
-		ifp->if_u1.if_ext_irec =
-			kmem_realloc(ifp->if_u1.if_ext_irec, new_size, KM_NOFS);
-	}
-}
-
-/*
- * Switch from indirection array to linear (direct) extent allocations.
- */
-STATIC void
-xfs_iext_indirect_to_direct(
-	 xfs_ifork_t	*ifp)		/* inode fork pointer */
-{
-	xfs_bmbt_rec_host_t *ep;	/* extent record pointer */
-	xfs_extnum_t	nextents;	/* number of extents in file */
-	int		size;		/* size of file extents */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nextents = xfs_iext_count(ifp);
-	ASSERT(nextents <= XFS_LINEAR_EXTS);
-	size = nextents * sizeof(xfs_bmbt_rec_t);
-
-	xfs_iext_irec_compact_pages(ifp);
-	ASSERT(ifp->if_real_bytes == XFS_IEXT_BUFSZ);
-
-	ep = ifp->if_u1.if_ext_irec->er_extbuf;
-	kmem_free(ifp->if_u1.if_ext_irec);
-	ifp->if_flags &= ~XFS_IFEXTIREC;
-	ifp->if_u1.if_extents = ep;
-	ifp->if_bytes = size;
-	if (nextents < XFS_LINEAR_EXTS) {
-		xfs_iext_realloc_direct(ifp, size);
-	}
-}
-
-/*
- * Remove all records from the indirection array.
- */
-STATIC void
-xfs_iext_irec_remove_all(
-	struct xfs_ifork *ifp)
-{
-	int		nlists;
-	int		i;
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	for (i = 0; i < nlists; i++)
-		kmem_free(ifp->if_u1.if_ext_irec[i].er_extbuf);
-	kmem_free(ifp->if_u1.if_ext_irec);
-	ifp->if_flags &= ~XFS_IFEXTIREC;
-}
-
-/*
- * Free incore file extents.
- */
-void
-xfs_iext_destroy(
-	xfs_ifork_t	*ifp)		/* inode fork pointer */
-{
-	if (ifp->if_flags & XFS_IFEXTIREC) {
-		xfs_iext_irec_remove_all(ifp);
-	} else if (ifp->if_real_bytes) {
-		kmem_free(ifp->if_u1.if_extents);
-	} else if (ifp->if_bytes) {
-		memset(ifp->if_u2.if_inline_ext, 0, XFS_INLINE_EXTS *
-			sizeof(xfs_bmbt_rec_t));
-	}
-	ifp->if_u1.if_extents = NULL;
-	ifp->if_real_bytes = 0;
-	ifp->if_bytes = 0;
-}
-
-/*
- * Return a pointer to the extent record for file system block bno.
- */
-xfs_bmbt_rec_host_t *			/* pointer to found extent record */
-xfs_iext_bno_to_ext(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_fileoff_t	bno,		/* block number to search for */
-	xfs_extnum_t	*idxp)		/* index of target extent */
-{
-	xfs_bmbt_rec_host_t *base;	/* pointer to first extent */
-	xfs_filblks_t	blockcount = 0;	/* number of blocks in extent */
-	xfs_bmbt_rec_host_t *ep = NULL;	/* pointer to target extent */
-	xfs_ext_irec_t	*erp = NULL;	/* indirection array pointer */
-	int		high;		/* upper boundary in search */
-	xfs_extnum_t	idx = 0;	/* index of target extent */
-	int		low;		/* lower boundary in search */
-	xfs_extnum_t	nextents;	/* number of file extents */
-	xfs_fileoff_t	startoff = 0;	/* start offset of extent */
-
-	nextents = xfs_iext_count(ifp);
-	if (nextents == 0) {
-		*idxp = 0;
-		return NULL;
-	}
-	low = 0;
-	if (ifp->if_flags & XFS_IFEXTIREC) {
-		/* Find target extent list */
-		int	erp_idx = 0;
-		erp = xfs_iext_bno_to_irec(ifp, bno, &erp_idx);
-		base = erp->er_extbuf;
-		high = erp->er_extcount - 1;
-	} else {
-		base = ifp->if_u1.if_extents;
-		high = nextents - 1;
-	}
-	/* Binary search extent records */
-	while (low <= high) {
-		idx = (low + high) >> 1;
-		ep = base + idx;
-		startoff = xfs_bmbt_get_startoff(ep);
-		blockcount = xfs_bmbt_get_blockcount(ep);
-		if (bno < startoff) {
-			high = idx - 1;
-		} else if (bno >= startoff + blockcount) {
-			low = idx + 1;
-		} else {
-			/* Convert back to file-based extent index */
-			if (ifp->if_flags & XFS_IFEXTIREC) {
-				idx += erp->er_extoff;
-			}
-			*idxp = idx;
-			return ep;
-		}
-	}
-	/* Convert back to file-based extent index */
-	if (ifp->if_flags & XFS_IFEXTIREC) {
-		idx += erp->er_extoff;
-	}
-	if (bno >= startoff + blockcount) {
-		if (++idx == nextents) {
-			ep = NULL;
-		} else {
-			ep = xfs_iext_get_ext(ifp, idx);
-		}
-	}
-	*idxp = idx;
-	return ep;
-}
-
-/*
- * Return a pointer to the indirection array entry containing the
- * extent record for filesystem block bno. Store the index of the
- * target irec in *erp_idxp.
- */
-xfs_ext_irec_t *			/* pointer to found extent record */
-xfs_iext_bno_to_irec(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_fileoff_t	bno,		/* block number to search for */
-	int		*erp_idxp)	/* irec index of target ext list */
-{
-	xfs_ext_irec_t	*erp = NULL;	/* indirection array pointer */
-	xfs_ext_irec_t	*erp_next;	/* next indirection array entry */
-	int		erp_idx;	/* indirection array index */
-	int		nlists;		/* number of extent irec's (lists) */
-	int		high;		/* binary search upper limit */
-	int		low;		/* binary search lower limit */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	erp_idx = 0;
-	low = 0;
-	high = nlists - 1;
-	while (low <= high) {
-		erp_idx = (low + high) >> 1;
-		erp = &ifp->if_u1.if_ext_irec[erp_idx];
-		erp_next = erp_idx < nlists - 1 ? erp + 1 : NULL;
-		if (bno < xfs_bmbt_get_startoff(erp->er_extbuf)) {
-			high = erp_idx - 1;
-		} else if (erp_next && bno >=
-			   xfs_bmbt_get_startoff(erp_next->er_extbuf)) {
-			low = erp_idx + 1;
-		} else {
-			break;
-		}
-	}
-	*erp_idxp = erp_idx;
-	return erp;
-}
-
-/*
- * Return a pointer to the indirection array entry containing the
- * extent record at file extent index *idxp. Store the index of the
- * target irec in *erp_idxp and store the page index of the target
- * extent record in *idxp.
- */
-xfs_ext_irec_t *
-xfs_iext_idx_to_irec(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	xfs_extnum_t	*idxp,		/* extent index (file -> page) */
-	int		*erp_idxp,	/* pointer to target irec */
-	int		realloc)	/* new bytes were just added */
-{
-	xfs_ext_irec_t	*prev;		/* pointer to previous irec */
-	xfs_ext_irec_t	*erp = NULL;	/* pointer to current irec */
-	int		erp_idx;	/* indirection array index */
-	int		nlists;		/* number of irec's (ex lists) */
-	int		high;		/* binary search upper limit */
-	int		low;		/* binary search lower limit */
-	xfs_extnum_t	page_idx = *idxp; /* extent index in target list */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	ASSERT(page_idx >= 0);
-	ASSERT(page_idx <= xfs_iext_count(ifp));
-	ASSERT(page_idx < xfs_iext_count(ifp) || realloc);
-
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	erp_idx = 0;
-	low = 0;
-	high = nlists - 1;
-
-	/* Binary search extent irec's */
-	while (low <= high) {
-		erp_idx = (low + high) >> 1;
-		erp = &ifp->if_u1.if_ext_irec[erp_idx];
-		prev = erp_idx > 0 ? erp - 1 : NULL;
-		if (page_idx < erp->er_extoff || (page_idx == erp->er_extoff &&
-		     realloc && prev && prev->er_extcount < XFS_LINEAR_EXTS)) {
-			high = erp_idx - 1;
-		} else if (page_idx > erp->er_extoff + erp->er_extcount ||
-			   (page_idx == erp->er_extoff + erp->er_extcount &&
-			    !realloc)) {
-			low = erp_idx + 1;
-		} else if (page_idx == erp->er_extoff + erp->er_extcount &&
-			   erp->er_extcount == XFS_LINEAR_EXTS) {
-			ASSERT(realloc);
-			page_idx = 0;
-			erp_idx++;
-			erp = erp_idx < nlists ? erp + 1 : NULL;
-			break;
-		} else {
-			page_idx -= erp->er_extoff;
-			break;
-		}
-	}
-	*idxp = page_idx;
-	*erp_idxp = erp_idx;
-	return erp;
-}
-
-/*
- * Allocate and initialize an indirection array once the space needed
- * for incore extents increases above XFS_IEXT_BUFSZ.
- */
-void
-xfs_iext_irec_init(
-	xfs_ifork_t	*ifp)		/* inode fork pointer */
-{
-	xfs_ext_irec_t	*erp;		/* indirection array pointer */
-	xfs_extnum_t	nextents;	/* number of extents in file */
-
-	ASSERT(!(ifp->if_flags & XFS_IFEXTIREC));
-	nextents = xfs_iext_count(ifp);
-	ASSERT(nextents <= XFS_LINEAR_EXTS);
-
-	erp = kmem_alloc(sizeof(xfs_ext_irec_t), KM_NOFS);
-
-	if (nextents == 0) {
-		ifp->if_u1.if_extents = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
-	} else if (!ifp->if_real_bytes) {
-		xfs_iext_inline_to_direct(ifp, XFS_IEXT_BUFSZ);
-	} else if (ifp->if_real_bytes < XFS_IEXT_BUFSZ) {
-		xfs_iext_realloc_direct(ifp, XFS_IEXT_BUFSZ);
-	}
-	erp->er_extbuf = ifp->if_u1.if_extents;
-	erp->er_extcount = nextents;
-	erp->er_extoff = 0;
-
-	ifp->if_flags |= XFS_IFEXTIREC;
-	ifp->if_real_bytes = XFS_IEXT_BUFSZ;
-	ifp->if_bytes = nextents * sizeof(xfs_bmbt_rec_t);
-	ifp->if_u1.if_ext_irec = erp;
-
-	return;
-}
-
-/*
- * Allocate and initialize a new entry in the indirection array.
- */
-xfs_ext_irec_t *
-xfs_iext_irec_new(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		erp_idx)	/* index for new irec */
-{
-	xfs_ext_irec_t	*erp;		/* indirection array pointer */
-	int		i;		/* loop counter */
-	int		nlists;		/* number of irec's (ex lists) */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-
-	/* Resize indirection array */
-	xfs_iext_realloc_indirect(ifp, ++nlists *
-				  sizeof(xfs_ext_irec_t));
-	/*
-	 * Move records down in the array so the
-	 * new page can use erp_idx.
-	 */
-	erp = ifp->if_u1.if_ext_irec;
-	for (i = nlists - 1; i > erp_idx; i--) {
-		memmove(&erp[i], &erp[i-1], sizeof(xfs_ext_irec_t));
-	}
-	ASSERT(i == erp_idx);
-
-	/* Initialize new extent record */
-	erp = ifp->if_u1.if_ext_irec;
-	erp[erp_idx].er_extbuf = kmem_alloc(XFS_IEXT_BUFSZ, KM_NOFS);
-	ifp->if_real_bytes = nlists * XFS_IEXT_BUFSZ;
-	memset(erp[erp_idx].er_extbuf, 0, XFS_IEXT_BUFSZ);
-	erp[erp_idx].er_extcount = 0;
-	erp[erp_idx].er_extoff = erp_idx > 0 ?
-		erp[erp_idx-1].er_extoff + erp[erp_idx-1].er_extcount : 0;
-	return (&erp[erp_idx]);
-}
-
-/*
- * Remove a record from the indirection array.
- */
-void
-xfs_iext_irec_remove(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		erp_idx)	/* irec index to remove */
-{
-	xfs_ext_irec_t	*erp;		/* indirection array pointer */
-	int		i;		/* loop counter */
-	int		nlists;		/* number of irec's (ex lists) */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	erp = &ifp->if_u1.if_ext_irec[erp_idx];
-	if (erp->er_extbuf) {
-		xfs_iext_irec_update_extoffs(ifp, erp_idx + 1,
-			-erp->er_extcount);
-		kmem_free(erp->er_extbuf);
-	}
-	/* Compact extent records */
-	erp = ifp->if_u1.if_ext_irec;
-	for (i = erp_idx; i < nlists - 1; i++) {
-		memmove(&erp[i], &erp[i+1], sizeof(xfs_ext_irec_t));
-	}
-	/*
-	 * Manually free the last extent record from the indirection
-	 * array.  A call to xfs_iext_realloc_indirect() with a size
-	 * of zero would result in a call to xfs_iext_destroy() which
-	 * would in turn call this function again, creating a nasty
-	 * infinite loop.
-	 */
-	if (--nlists) {
-		xfs_iext_realloc_indirect(ifp,
-			nlists * sizeof(xfs_ext_irec_t));
-	} else {
-		kmem_free(ifp->if_u1.if_ext_irec);
-	}
-	ifp->if_real_bytes = nlists * XFS_IEXT_BUFSZ;
-}
-
-/*
- * This is called to clean up large amounts of unused memory allocated
- * by the indirection array.  Before compacting anything though, verify
- * that the indirection array is still needed and switch back to the
- * linear extent list (or even the inline buffer) if possible.  The
- * compaction policy is as follows:
- *
- *    Full Compaction: Extents fit into a single page (or inline buffer)
- * Partial Compaction: Extents occupy less than 50% of allocated space
- *      No Compaction: Extents occupy at least 50% of allocated space
- */
-void
-xfs_iext_irec_compact(
-	xfs_ifork_t	*ifp)		/* inode fork pointer */
-{
-	xfs_extnum_t	nextents;	/* number of extents in file */
-	int		nlists;		/* number of irec's (ex lists) */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	nextents = xfs_iext_count(ifp);
-
-	if (nextents == 0) {
-		xfs_iext_destroy(ifp);
-	} else if (nextents <= XFS_INLINE_EXTS) {
-		xfs_iext_indirect_to_direct(ifp);
-		xfs_iext_direct_to_inline(ifp, nextents);
-	} else if (nextents <= XFS_LINEAR_EXTS) {
-		xfs_iext_indirect_to_direct(ifp);
-	} else if (nextents < (nlists * XFS_LINEAR_EXTS) >> 1) {
-		xfs_iext_irec_compact_pages(ifp);
-	}
-}
-
-/*
- * Combine extents from neighboring extent pages.
- */
-void
-xfs_iext_irec_compact_pages(
-	xfs_ifork_t	*ifp)		/* inode fork pointer */
-{
-	xfs_ext_irec_t	*erp, *erp_next;/* pointers to irec entries */
-	int		erp_idx = 0;	/* indirection array index */
-	int		nlists;		/* number of irec's (ex lists) */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	while (erp_idx < nlists - 1) {
-		erp = &ifp->if_u1.if_ext_irec[erp_idx];
-		erp_next = erp + 1;
-		if (erp_next->er_extcount <=
-		    (XFS_LINEAR_EXTS - erp->er_extcount)) {
-			memcpy(&erp->er_extbuf[erp->er_extcount],
-				erp_next->er_extbuf, erp_next->er_extcount *
-				sizeof(xfs_bmbt_rec_t));
-			erp->er_extcount += erp_next->er_extcount;
-			/*
-			 * Free page before removing extent record
-			 * so er_extoffs don't get modified in
-			 * xfs_iext_irec_remove.
-			 */
-			kmem_free(erp_next->er_extbuf);
-			erp_next->er_extbuf = NULL;
-			xfs_iext_irec_remove(ifp, erp_idx + 1);
-			nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-		} else {
-			erp_idx++;
-		}
-	}
-}
-
-/*
- * This is called to update the er_extoff field in the indirection
- * array when extents have been added or removed from one of the
- * extent lists. erp_idx contains the irec index to begin updating
- * at and ext_diff contains the number of extents that were added
- * or removed.
- */
-void
-xfs_iext_irec_update_extoffs(
-	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		erp_idx,	/* irec index to update */
-	int		ext_diff)	/* number of new extents */
-{
-	int		i;		/* loop counter */
-	int		nlists;		/* number of irec's (ex lists */
-
-	ASSERT(ifp->if_flags & XFS_IFEXTIREC);
-	nlists = ifp->if_real_bytes / XFS_IEXT_BUFSZ;
-	for (i = erp_idx; i < nlists; i++) {
-		ifp->if_u1.if_ext_irec[i].er_extoff += ext_diff;
-	}
-}
-
-/*
  * Initialize an inode's copy-on-write fork.
  */
 void
@@ -1974,61 +831,3 @@ xfs_ifork_init_cow(
 	ip->i_cformat = XFS_DINODE_FMT_EXTENTS;
 	ip->i_cnextents = 0;
 }
-
-/*
- * Lookup the extent covering bno.
- *
- * If there is an extent covering bno return the extent index, and store the
- * expanded extent structure in *gotp, and the extent index in *idx.
- * If there is no extent covering bno, but there is an extent after it (e.g.
- * it lies in a hole) return that extent in *gotp and its index in *idx
- * instead.
- * If bno is beyond the last extent return false, and return the index after
- * the last valid index in *idxp.
- */
-bool
-xfs_iext_lookup_extent(
-	struct xfs_inode	*ip,
-	struct xfs_ifork	*ifp,
-	xfs_fileoff_t		bno,
-	xfs_extnum_t		*idxp,
-	struct xfs_bmbt_irec	*gotp)
-{
-	struct xfs_bmbt_rec_host *ep;
-
-	XFS_STATS_INC(ip->i_mount, xs_look_exlist);
-
-	ep = xfs_iext_bno_to_ext(ifp, bno, idxp);
-	if (!ep)
-		return false;
-	xfs_bmbt_get_all(ep, gotp);
-	return true;
-}
-
-/*
- * Return true if there is an extent at index idx, and return the expanded
- * extent structure at idx in that case.  Else return false.
- */
-bool
-xfs_iext_get_extent(
-	struct xfs_ifork	*ifp,
-	xfs_extnum_t		idx,
-	struct xfs_bmbt_irec	*gotp)
-{
-	if (idx < 0 || idx >= xfs_iext_count(ifp))
-		return false;
-	xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), gotp);
-	return true;
-}
-
-void
-xfs_iext_update_extent(
-	struct xfs_ifork	*ifp,
-	xfs_extnum_t		idx,
-	struct xfs_bmbt_irec	*gotp)
-{
-	ASSERT(idx >= 0);
-	ASSERT(idx < xfs_iext_count(ifp));
-
-	xfs_bmbt_set_all(xfs_iext_get_ext(ifp, idx), gotp);
-}
diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h
index 11af705219f6..b9f0098e33b8 100644
--- a/fs/xfs/libxfs/xfs_inode_fork.h
+++ b/fs/xfs/libxfs/xfs_inode_fork.h
@@ -22,56 +22,19 @@ struct xfs_inode_log_item;
 struct xfs_dinode;
 
 /*
- * The following xfs_ext_irec_t struct introduces a second (top) level
- * to the in-core extent allocation scheme. These structs are allocated
- * in a contiguous block, creating an indirection array where each entry
- * (irec) contains a pointer to a buffer of in-core extent records which
- * it manages. Each extent buffer is 4k in size, since 4k is the system
- * page size on Linux i386 and systems with larger page sizes don't seem
- * to gain much, if anything, by using their native page size as the
- * extent buffer size. Also, using 4k extent buffers everywhere provides
- * a consistent interface for CXFS across different platforms.
- *
- * There is currently no limit on the number of irec's (extent lists)
- * allowed, so heavily fragmented files may require an indirection array
- * which spans multiple system pages of memory. The number of extents
- * which would require this amount of contiguous memory is very large
- * and should not cause problems in the foreseeable future. However,
- * if the memory needed for the contiguous array ever becomes a problem,
- * it is possible that a third level of indirection may be required.
- */
-typedef struct xfs_ext_irec {
-	xfs_bmbt_rec_host_t *er_extbuf;	/* block of extent records */
-	xfs_extnum_t	er_extoff;	/* extent offset in file */
-	xfs_extnum_t	er_extcount;	/* number of extents in page/block */
-} xfs_ext_irec_t;
-
-/*
  * File incore extent information, present for each of data & attr forks.
  */
-#define	XFS_IEXT_BUFSZ		4096
-#define	XFS_LINEAR_EXTS		(XFS_IEXT_BUFSZ / (uint)sizeof(xfs_bmbt_rec_t))
-#define	XFS_INLINE_EXTS		2
-#define	XFS_INLINE_DATA		32
 typedef struct xfs_ifork {
 	int			if_bytes;	/* bytes in if_u1 */
 	int			if_real_bytes;	/* bytes allocated in if_u1 */
 	struct xfs_btree_block	*if_broot;	/* file's incore btree root */
 	short			if_broot_bytes;	/* bytes allocated for root */
 	unsigned char		if_flags;	/* per-fork flags */
+	int			if_height;	/* height of the extent tree */
 	union {
-		xfs_bmbt_rec_host_t *if_extents;/* linear map file exts */
-		xfs_ext_irec_t	*if_ext_irec;	/* irec map file exts */
+		void		*if_root;	/* extent tree root */
 		char		*if_data;	/* inline file data */
 	} if_u1;
-	union {
-		xfs_bmbt_rec_host_t if_inline_ext[XFS_INLINE_EXTS];
-						/* very small file extents */
-		char		if_inline_data[XFS_INLINE_DATA];
-						/* very small file data */
-		xfs_dev_t	if_rdev;	/* dev number if special */
-		uuid_t		if_uuid;	/* mount point value */
-	} if_u2;
 } xfs_ifork_t;
 
 /*
@@ -80,7 +43,6 @@ typedef struct xfs_ifork {
 #define	XFS_IFINLINE	0x01	/* Inline data is read in */
 #define	XFS_IFEXTENTS	0x02	/* All extent pointers are read in */
 #define	XFS_IFBROOT	0x04	/* i_broot points to the bmap b-tree root */
-#define	XFS_IFEXTIREC	0x08	/* Indirection array of extent blocks */
 
 /*
  * Fork handling.
@@ -150,45 +112,75 @@ int		xfs_iextents_copy(struct xfs_inode *, struct xfs_bmbt_rec *,
 				  int);
 void		xfs_init_local_fork(struct xfs_inode *, int, const void *, int);
 
-struct xfs_bmbt_rec_host *
-		xfs_iext_get_ext(struct xfs_ifork *, xfs_extnum_t);
-xfs_extnum_t	xfs_iext_count(struct xfs_ifork *);
-void		xfs_iext_insert(struct xfs_inode *, xfs_extnum_t, xfs_extnum_t,
-				struct xfs_bmbt_irec *, int);
-void		xfs_iext_add(struct xfs_ifork *, xfs_extnum_t, int);
-void		xfs_iext_add_indirect_multi(struct xfs_ifork *, int,
-					    xfs_extnum_t, int);
-void		xfs_iext_remove(struct xfs_inode *, xfs_extnum_t, int, int);
-void		xfs_iext_remove_inline(struct xfs_ifork *, xfs_extnum_t, int);
-void		xfs_iext_remove_direct(struct xfs_ifork *, xfs_extnum_t, int);
-void		xfs_iext_remove_indirect(struct xfs_ifork *, xfs_extnum_t, int);
-void		xfs_iext_realloc_direct(struct xfs_ifork *, int);
-void		xfs_iext_direct_to_inline(struct xfs_ifork *, xfs_extnum_t);
-void		xfs_iext_inline_to_direct(struct xfs_ifork *, int);
+xfs_extnum_t	xfs_iext_count(struct xfs_ifork *ifp);
+void		xfs_iext_insert(struct xfs_inode *, struct xfs_iext_cursor *cur,
+			struct xfs_bmbt_irec *, int);
+void		xfs_iext_remove(struct xfs_inode *, struct xfs_iext_cursor *,
+			int);
 void		xfs_iext_destroy(struct xfs_ifork *);
-struct xfs_bmbt_rec_host *
-		xfs_iext_bno_to_ext(struct xfs_ifork *, xfs_fileoff_t, int *);
-struct xfs_ext_irec *
-		xfs_iext_bno_to_irec(struct xfs_ifork *, xfs_fileoff_t, int *);
-struct xfs_ext_irec *
-		xfs_iext_idx_to_irec(struct xfs_ifork *, xfs_extnum_t *, int *,
-				     int);
-void		xfs_iext_irec_init(struct xfs_ifork *);
-struct xfs_ext_irec *
-		xfs_iext_irec_new(struct xfs_ifork *, int);
-void		xfs_iext_irec_remove(struct xfs_ifork *, int);
-void		xfs_iext_irec_compact(struct xfs_ifork *);
-void		xfs_iext_irec_compact_pages(struct xfs_ifork *);
-void		xfs_iext_irec_compact_full(struct xfs_ifork *);
-void		xfs_iext_irec_update_extoffs(struct xfs_ifork *, int, int);
 
 bool		xfs_iext_lookup_extent(struct xfs_inode *ip,
 			struct xfs_ifork *ifp, xfs_fileoff_t bno,
-			xfs_extnum_t *idxp, struct xfs_bmbt_irec *gotp);
-bool		xfs_iext_get_extent(struct xfs_ifork *ifp, xfs_extnum_t idx,
+			struct xfs_iext_cursor *cur,
 			struct xfs_bmbt_irec *gotp);
-void		xfs_iext_update_extent(struct xfs_ifork *ifp, xfs_extnum_t idx,
+bool		xfs_iext_lookup_extent_before(struct xfs_inode *ip,
+			struct xfs_ifork *ifp, xfs_fileoff_t *end,
+			struct xfs_iext_cursor *cur,
 			struct xfs_bmbt_irec *gotp);
+bool		xfs_iext_get_extent(struct xfs_ifork *ifp,
+			struct xfs_iext_cursor *cur,
+			struct xfs_bmbt_irec *gotp);
+void		xfs_iext_update_extent(struct xfs_inode *ip, int state,
+			struct xfs_iext_cursor *cur,
+			struct xfs_bmbt_irec *gotp);
+
+void		xfs_iext_first(struct xfs_ifork *, struct xfs_iext_cursor *);
+void		xfs_iext_last(struct xfs_ifork *, struct xfs_iext_cursor *);
+void		xfs_iext_next(struct xfs_ifork *, struct xfs_iext_cursor *);
+void		xfs_iext_prev(struct xfs_ifork *, struct xfs_iext_cursor *);
+
+static inline bool xfs_iext_next_extent(struct xfs_ifork *ifp,
+		struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *gotp)
+{
+	xfs_iext_next(ifp, cur);
+	return xfs_iext_get_extent(ifp, cur, gotp);
+}
+
+static inline bool xfs_iext_prev_extent(struct xfs_ifork *ifp,
+		struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *gotp)
+{
+	xfs_iext_prev(ifp, cur);
+	return xfs_iext_get_extent(ifp, cur, gotp);
+}
+
+/*
+ * Return the extent after cur in gotp without updating the cursor.
+ */
+static inline bool xfs_iext_peek_next_extent(struct xfs_ifork *ifp,
+		struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *gotp)
+{
+	struct xfs_iext_cursor ncur = *cur;
+
+	xfs_iext_next(ifp, &ncur);
+	return xfs_iext_get_extent(ifp, &ncur, gotp);
+}
+
+/*
+ * Return the extent before cur in gotp without updating the cursor.
+ */
+static inline bool xfs_iext_peek_prev_extent(struct xfs_ifork *ifp,
+		struct xfs_iext_cursor *cur, struct xfs_bmbt_irec *gotp)
+{
+	struct xfs_iext_cursor ncur = *cur;
+
+	xfs_iext_prev(ifp, &ncur);
+	return xfs_iext_get_extent(ifp, &ncur, gotp);
+}
+
+#define for_each_xfs_iext(ifp, ext, got)		\
+	for (xfs_iext_first((ifp), (ext));		\
+	     xfs_iext_get_extent((ifp), (ext), (got));	\
+	     xfs_iext_next((ifp), (ext)))
 
 extern struct kmem_zone	*xfs_ifork_zone;
 
diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h
index 8372e9bcd7b6..996f035ee205 100644
--- a/fs/xfs/libxfs/xfs_log_format.h
+++ b/fs/xfs/libxfs/xfs_log_format.h
@@ -264,54 +264,43 @@ typedef struct xfs_trans_header {
  * (if any) is indicated in the ilf_dsize field.  Changes to this structure
  * must be added on to the end.
  */
-typedef struct xfs_inode_log_format {
-	uint16_t		ilf_type;	/* inode log item type */
-	uint16_t		ilf_size;	/* size of this item */
-	uint32_t		ilf_fields;	/* flags for fields logged */
-	uint16_t		ilf_asize;	/* size of attr d/ext/root */
-	uint16_t		ilf_dsize;	/* size of data/ext/root */
-	uint64_t		ilf_ino;	/* inode number */
-	union {
-		uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
-		uuid_t		ilfu_uuid;	/* mount point value */
-	} ilf_u;
-	int64_t			ilf_blkno;	/* blkno of inode buffer */
-	int32_t			ilf_len;	/* len of inode buffer */
-	int32_t			ilf_boffset;	/* off of inode in buffer */
-} xfs_inode_log_format_t;
-
-typedef struct xfs_inode_log_format_32 {
+struct xfs_inode_log_format {
 	uint16_t		ilf_type;	/* inode log item type */
 	uint16_t		ilf_size;	/* size of this item */
 	uint32_t		ilf_fields;	/* flags for fields logged */
 	uint16_t		ilf_asize;	/* size of attr d/ext/root */
 	uint16_t		ilf_dsize;	/* size of data/ext/root */
+	uint32_t		ilf_pad;	/* pad for 64 bit boundary */
 	uint64_t		ilf_ino;	/* inode number */
 	union {
 		uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
-		uuid_t		ilfu_uuid;	/* mount point value */
+		u8		__pad[16];	/* unused */
 	} ilf_u;
 	int64_t			ilf_blkno;	/* blkno of inode buffer */
 	int32_t			ilf_len;	/* len of inode buffer */
 	int32_t			ilf_boffset;	/* off of inode in buffer */
-} __attribute__((packed)) xfs_inode_log_format_32_t;
+};
 
-typedef struct xfs_inode_log_format_64 {
+/*
+ * Old 32 bit systems will log in this format without the 64 bit
+ * alignment padding. Recovery will detect this and convert it to the
+ * correct format.
+ */
+struct xfs_inode_log_format_32 {
 	uint16_t		ilf_type;	/* inode log item type */
 	uint16_t		ilf_size;	/* size of this item */
 	uint32_t		ilf_fields;	/* flags for fields logged */
 	uint16_t		ilf_asize;	/* size of attr d/ext/root */
 	uint16_t		ilf_dsize;	/* size of data/ext/root */
-	uint32_t		ilf_pad;	/* pad for 64 bit boundary */
 	uint64_t		ilf_ino;	/* inode number */
 	union {
 		uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
-		uuid_t		ilfu_uuid;	/* mount point value */
+		u8		__pad[16];	/* unused */
 	} ilf_u;
 	int64_t			ilf_blkno;	/* blkno of inode buffer */
 	int32_t			ilf_len;	/* len of inode buffer */
 	int32_t			ilf_boffset;	/* off of inode in buffer */
-} xfs_inode_log_format_64_t;
+} __attribute__((packed));
 
 
 /*
@@ -322,7 +311,7 @@ typedef struct xfs_inode_log_format_64 {
 #define	XFS_ILOG_DEXT	0x004	/* log i_df.if_extents */
 #define	XFS_ILOG_DBROOT	0x008	/* log i_df.i_broot */
 #define	XFS_ILOG_DEV	0x010	/* log the dev field */
-#define	XFS_ILOG_UUID	0x020	/* log the uuid field */
+#define	XFS_ILOG_UUID	0x020	/* added long ago, but never used */
 #define	XFS_ILOG_ADATA	0x040	/* log i_af.if_data */
 #define	XFS_ILOG_AEXT	0x080	/* log i_af.if_extents */
 #define	XFS_ILOG_ABROOT	0x100	/* log i_af.i_broot */
@@ -340,9 +329,9 @@ typedef struct xfs_inode_log_format_64 {
 
 #define	XFS_ILOG_NONCORE	(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
 				 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
-				 XFS_ILOG_UUID | XFS_ILOG_ADATA | \
-				 XFS_ILOG_AEXT | XFS_ILOG_ABROOT | \
-				 XFS_ILOG_DOWNER | XFS_ILOG_AOWNER)
+				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
+				 XFS_ILOG_ABROOT | XFS_ILOG_DOWNER | \
+				 XFS_ILOG_AOWNER)
 
 #define	XFS_ILOG_DFORK		(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
 				 XFS_ILOG_DBROOT)
@@ -352,10 +341,10 @@ typedef struct xfs_inode_log_format_64 {
 
 #define	XFS_ILOG_ALL		(XFS_ILOG_CORE | XFS_ILOG_DDATA | \
 				 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
-				 XFS_ILOG_DEV | XFS_ILOG_UUID | \
-				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
-				 XFS_ILOG_ABROOT | XFS_ILOG_TIMESTAMP | \
-				 XFS_ILOG_DOWNER | XFS_ILOG_AOWNER)
+				 XFS_ILOG_DEV | XFS_ILOG_ADATA | \
+				 XFS_ILOG_AEXT | XFS_ILOG_ABROOT | \
+				 XFS_ILOG_TIMESTAMP | XFS_ILOG_DOWNER | \
+				 XFS_ILOG_AOWNER)
 
 static inline int xfs_ilog_fbroot(int w)
 {
diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c
index 9d5406b4f663..585b35d34142 100644
--- a/fs/xfs/libxfs/xfs_refcount.c
+++ b/fs/xfs/libxfs/xfs_refcount.c
@@ -30,6 +30,7 @@
 #include "xfs_bmap.h"
 #include "xfs_refcount_btree.h"
 #include "xfs_alloc.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index 55c88a732690..dd019cee1b3b 100644
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -34,6 +34,7 @@
 #include "xfs_rmap_btree.h"
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_extent_busy.h"
 #include "xfs_bmap.h"
diff --git a/fs/xfs/libxfs/xfs_rtbitmap.c b/fs/xfs/libxfs/xfs_rtbitmap.c
index 5d4e43ef4eea..3fb29a5ea915 100644
--- a/fs/xfs/libxfs/xfs_rtbitmap.c
+++ b/fs/xfs/libxfs/xfs_rtbitmap.c
@@ -672,7 +672,6 @@ xfs_rtmodify_range(
 		/*
 		 * Compute a mask of relevant bits.
 		 */
-		bit = 0;
 		mask = ((xfs_rtword_t)1 << lastbit) - 1;
 		/*
 		 * Set/clear the active bits.
@@ -1086,3 +1085,15 @@ xfs_rtalloc_query_all(
 
 	return xfs_rtalloc_query_range(tp, &keys[0], &keys[1], fn, priv);
 }
+
+/*
+ * Verify that an realtime block number pointer doesn't point off the
+ * end of the realtime device.
+ */
+bool
+xfs_verify_rtbno(
+	struct xfs_mount	*mp,
+	xfs_rtblock_t		rtbno)
+{
+	return rtbno < mp->m_sb.sb_rblocks;
+}
diff --git a/fs/xfs/libxfs/xfs_types.h b/fs/xfs/libxfs/xfs_types.h
index 0220159bd463..3c560695c546 100644
--- a/fs/xfs/libxfs/xfs_types.h
+++ b/fs/xfs/libxfs/xfs_types.h
@@ -48,6 +48,12 @@ typedef int64_t		xfs_srtblock_t;	/* signed version of xfs_rtblock_t */
 typedef int64_t		xfs_sfiloff_t;	/* signed block number in a file */
 
 /*
+ * New verifiers will return the instruction address of the failing check.
+ * NULL means everything is ok.
+ */
+typedef void *		xfs_failaddr_t;
+
+/*
  * Null values for the types.
  */
 #define	NULLFSBLOCK	((xfs_fsblock_t)-1)
@@ -136,5 +142,21 @@ typedef uint32_t	xfs_dqid_t;
 #define	XFS_NBWORD	(1 << XFS_NBWORDLOG)
 #define	XFS_WORDMASK	((1 << XFS_WORDLOG) - 1)
 
+struct xfs_iext_cursor {
+	struct xfs_iext_leaf	*leaf;
+	int			pos;
+};
+
+typedef enum {
+	XFS_EXT_NORM, XFS_EXT_UNWRITTEN,
+} xfs_exntst_t;
+
+typedef struct xfs_bmbt_irec
+{
+	xfs_fileoff_t	br_startoff;	/* starting file offset */
+	xfs_fsblock_t	br_startblock;	/* starting block number */
+	xfs_filblks_t	br_blockcount;	/* number of blocks */
+	xfs_exntst_t	br_state;	/* extent state */
+} xfs_bmbt_irec_t;
 
 #endif	/* __XFS_TYPES_H__ */
diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
new file mode 100644
index 000000000000..2a9b4f9e93c6
--- /dev/null
+++ b/fs/xfs/scrub/agheader.c
@@ -0,0 +1,658 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+
+/*
+ * Set up scrub to check all the static metadata in each AG.
+ * This means the SB, AGF, AGI, and AGFL headers.
+ */
+int
+xfs_scrub_setup_ag_header(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	struct xfs_mount		*mp = sc->mp;
+
+	if (sc->sm->sm_agno >= mp->m_sb.sb_agcount ||
+	    sc->sm->sm_ino || sc->sm->sm_gen)
+		return -EINVAL;
+	return xfs_scrub_setup_fs(sc, ip);
+}
+
+/* Walk all the blocks in the AGFL. */
+int
+xfs_scrub_walk_agfl(
+	struct xfs_scrub_context	*sc,
+	int				(*fn)(struct xfs_scrub_context *,
+					      xfs_agblock_t bno, void *),
+	void				*priv)
+{
+	struct xfs_agf			*agf;
+	__be32				*agfl_bno;
+	struct xfs_mount		*mp = sc->mp;
+	unsigned int			flfirst;
+	unsigned int			fllast;
+	int				i;
+	int				error;
+
+	agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
+	agfl_bno = XFS_BUF_TO_AGFL_BNO(mp, sc->sa.agfl_bp);
+	flfirst = be32_to_cpu(agf->agf_flfirst);
+	fllast = be32_to_cpu(agf->agf_fllast);
+
+	/* Nothing to walk in an empty AGFL. */
+	if (agf->agf_flcount == cpu_to_be32(0))
+		return 0;
+
+	/* first to last is a consecutive list. */
+	if (fllast >= flfirst) {
+		for (i = flfirst; i <= fllast; i++) {
+			error = fn(sc, be32_to_cpu(agfl_bno[i]), priv);
+			if (error)
+				return error;
+			if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+				return error;
+		}
+
+		return 0;
+	}
+
+	/* first to the end */
+	for (i = flfirst; i < XFS_AGFL_SIZE(mp); i++) {
+		error = fn(sc, be32_to_cpu(agfl_bno[i]), priv);
+		if (error)
+			return error;
+		if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+			return error;
+	}
+
+	/* the start to last. */
+	for (i = 0; i <= fllast; i++) {
+		error = fn(sc, be32_to_cpu(agfl_bno[i]), priv);
+		if (error)
+			return error;
+		if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+			return error;
+	}
+
+	return 0;
+}
+
+/* Superblock */
+
+/*
+ * Scrub the filesystem superblock.
+ *
+ * Note: We do /not/ attempt to check AG 0's superblock.  Mount is
+ * responsible for validating all the geometry information in sb 0, so
+ * if the filesystem is capable of initiating online scrub, then clearly
+ * sb 0 is ok and we can use its information to check everything else.
+ */
+int
+xfs_scrub_superblock(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_buf			*bp;
+	struct xfs_dsb			*sb;
+	xfs_agnumber_t			agno;
+	uint32_t			v2_ok;
+	__be32				features_mask;
+	int				error;
+	__be16				vernum_mask;
+
+	agno = sc->sm->sm_agno;
+	if (agno == 0)
+		return 0;
+
+	error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp,
+		  XFS_AGB_TO_DADDR(mp, agno, XFS_SB_BLOCK(mp)),
+		  XFS_FSS_TO_BB(mp, 1), 0, &bp, &xfs_sb_buf_ops);
+	if (!xfs_scrub_process_error(sc, agno, XFS_SB_BLOCK(mp), &error))
+		return error;
+
+	sb = XFS_BUF_TO_SBP(bp);
+
+	/*
+	 * Verify the geometries match.  Fields that are permanently
+	 * set by mkfs are checked; fields that can be updated later
+	 * (and are not propagated to backup superblocks) are preen
+	 * checked.
+	 */
+	if (sb->sb_blocksize != cpu_to_be32(mp->m_sb.sb_blocksize))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_dblocks != cpu_to_be64(mp->m_sb.sb_dblocks))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_rblocks != cpu_to_be64(mp->m_sb.sb_rblocks))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_rextents != cpu_to_be64(mp->m_sb.sb_rextents))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (!uuid_equal(&sb->sb_uuid, &mp->m_sb.sb_uuid))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_logstart != cpu_to_be64(mp->m_sb.sb_logstart))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_rootino != cpu_to_be64(mp->m_sb.sb_rootino))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_rbmino != cpu_to_be64(mp->m_sb.sb_rbmino))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_rsumino != cpu_to_be64(mp->m_sb.sb_rsumino))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_rextsize != cpu_to_be32(mp->m_sb.sb_rextsize))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_agblocks != cpu_to_be32(mp->m_sb.sb_agblocks))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_agcount != cpu_to_be32(mp->m_sb.sb_agcount))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_rbmblocks != cpu_to_be32(mp->m_sb.sb_rbmblocks))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_logblocks != cpu_to_be32(mp->m_sb.sb_logblocks))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	/* Check sb_versionnum bits that are set at mkfs time. */
+	vernum_mask = cpu_to_be16(~XFS_SB_VERSION_OKBITS |
+				  XFS_SB_VERSION_NUMBITS |
+				  XFS_SB_VERSION_ALIGNBIT |
+				  XFS_SB_VERSION_DALIGNBIT |
+				  XFS_SB_VERSION_SHAREDBIT |
+				  XFS_SB_VERSION_LOGV2BIT |
+				  XFS_SB_VERSION_SECTORBIT |
+				  XFS_SB_VERSION_EXTFLGBIT |
+				  XFS_SB_VERSION_DIRV2BIT);
+	if ((sb->sb_versionnum & vernum_mask) !=
+	    (cpu_to_be16(mp->m_sb.sb_versionnum) & vernum_mask))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	/* Check sb_versionnum bits that can be set after mkfs time. */
+	vernum_mask = cpu_to_be16(XFS_SB_VERSION_ATTRBIT |
+				  XFS_SB_VERSION_NLINKBIT |
+				  XFS_SB_VERSION_QUOTABIT);
+	if ((sb->sb_versionnum & vernum_mask) !=
+	    (cpu_to_be16(mp->m_sb.sb_versionnum) & vernum_mask))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_sectsize != cpu_to_be16(mp->m_sb.sb_sectsize))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_inodesize != cpu_to_be16(mp->m_sb.sb_inodesize))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_inopblock != cpu_to_be16(mp->m_sb.sb_inopblock))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (memcmp(sb->sb_fname, mp->m_sb.sb_fname, sizeof(sb->sb_fname)))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_blocklog != mp->m_sb.sb_blocklog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_sectlog != mp->m_sb.sb_sectlog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_inodelog != mp->m_sb.sb_inodelog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_inopblog != mp->m_sb.sb_inopblog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_agblklog != mp->m_sb.sb_agblklog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_rextslog != mp->m_sb.sb_rextslog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_imax_pct != mp->m_sb.sb_imax_pct)
+		xfs_scrub_block_set_preen(sc, bp);
+
+	/*
+	 * Skip the summary counters since we track them in memory anyway.
+	 * sb_icount, sb_ifree, sb_fdblocks, sb_frexents
+	 */
+
+	if (sb->sb_uquotino != cpu_to_be64(mp->m_sb.sb_uquotino))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_gquotino != cpu_to_be64(mp->m_sb.sb_gquotino))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	/*
+	 * Skip the quota flags since repair will force quotacheck.
+	 * sb_qflags
+	 */
+
+	if (sb->sb_flags != mp->m_sb.sb_flags)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_shared_vn != mp->m_sb.sb_shared_vn)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_inoalignmt != cpu_to_be32(mp->m_sb.sb_inoalignmt))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_unit != cpu_to_be32(mp->m_sb.sb_unit))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_width != cpu_to_be32(mp->m_sb.sb_width))
+		xfs_scrub_block_set_preen(sc, bp);
+
+	if (sb->sb_dirblklog != mp->m_sb.sb_dirblklog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_logsectlog != mp->m_sb.sb_logsectlog)
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_logsectsize != cpu_to_be16(mp->m_sb.sb_logsectsize))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (sb->sb_logsunit != cpu_to_be32(mp->m_sb.sb_logsunit))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	/* Do we see any invalid bits in sb_features2? */
+	if (!xfs_sb_version_hasmorebits(&mp->m_sb)) {
+		if (sb->sb_features2 != 0)
+			xfs_scrub_block_set_corrupt(sc, bp);
+	} else {
+		v2_ok = XFS_SB_VERSION2_OKBITS;
+		if (XFS_SB_VERSION_NUM(&mp->m_sb) >= XFS_SB_VERSION_5)
+			v2_ok |= XFS_SB_VERSION2_CRCBIT;
+
+		if (!!(sb->sb_features2 & cpu_to_be32(~v2_ok)))
+			xfs_scrub_block_set_corrupt(sc, bp);
+
+		if (sb->sb_features2 != sb->sb_bad_features2)
+			xfs_scrub_block_set_preen(sc, bp);
+	}
+
+	/* Check sb_features2 flags that are set at mkfs time. */
+	features_mask = cpu_to_be32(XFS_SB_VERSION2_LAZYSBCOUNTBIT |
+				    XFS_SB_VERSION2_PROJID32BIT |
+				    XFS_SB_VERSION2_CRCBIT |
+				    XFS_SB_VERSION2_FTYPE);
+	if ((sb->sb_features2 & features_mask) !=
+	    (cpu_to_be32(mp->m_sb.sb_features2) & features_mask))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	/* Check sb_features2 flags that can be set after mkfs time. */
+	features_mask = cpu_to_be32(XFS_SB_VERSION2_ATTR2BIT);
+	if ((sb->sb_features2 & features_mask) !=
+	    (cpu_to_be32(mp->m_sb.sb_features2) & features_mask))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	if (!xfs_sb_version_hascrc(&mp->m_sb)) {
+		/* all v5 fields must be zero */
+		if (memchr_inv(&sb->sb_features_compat, 0,
+				sizeof(struct xfs_dsb) -
+				offsetof(struct xfs_dsb, sb_features_compat)))
+			xfs_scrub_block_set_corrupt(sc, bp);
+	} else {
+		/* Check compat flags; all are set at mkfs time. */
+		features_mask = cpu_to_be32(XFS_SB_FEAT_COMPAT_UNKNOWN);
+		if ((sb->sb_features_compat & features_mask) !=
+		    (cpu_to_be32(mp->m_sb.sb_features_compat) & features_mask))
+			xfs_scrub_block_set_corrupt(sc, bp);
+
+		/* Check ro compat flags; all are set at mkfs time. */
+		features_mask = cpu_to_be32(XFS_SB_FEAT_RO_COMPAT_UNKNOWN |
+					    XFS_SB_FEAT_RO_COMPAT_FINOBT |
+					    XFS_SB_FEAT_RO_COMPAT_RMAPBT |
+					    XFS_SB_FEAT_RO_COMPAT_REFLINK);
+		if ((sb->sb_features_ro_compat & features_mask) !=
+		    (cpu_to_be32(mp->m_sb.sb_features_ro_compat) &
+		     features_mask))
+			xfs_scrub_block_set_corrupt(sc, bp);
+
+		/* Check incompat flags; all are set at mkfs time. */
+		features_mask = cpu_to_be32(XFS_SB_FEAT_INCOMPAT_UNKNOWN |
+					    XFS_SB_FEAT_INCOMPAT_FTYPE |
+					    XFS_SB_FEAT_INCOMPAT_SPINODES |
+					    XFS_SB_FEAT_INCOMPAT_META_UUID);
+		if ((sb->sb_features_incompat & features_mask) !=
+		    (cpu_to_be32(mp->m_sb.sb_features_incompat) &
+		     features_mask))
+			xfs_scrub_block_set_corrupt(sc, bp);
+
+		/* Check log incompat flags; all are set at mkfs time. */
+		features_mask = cpu_to_be32(XFS_SB_FEAT_INCOMPAT_LOG_UNKNOWN);
+		if ((sb->sb_features_log_incompat & features_mask) !=
+		    (cpu_to_be32(mp->m_sb.sb_features_log_incompat) &
+		     features_mask))
+			xfs_scrub_block_set_corrupt(sc, bp);
+
+		/* Don't care about sb_crc */
+
+		if (sb->sb_spino_align != cpu_to_be32(mp->m_sb.sb_spino_align))
+			xfs_scrub_block_set_corrupt(sc, bp);
+
+		if (sb->sb_pquotino != cpu_to_be64(mp->m_sb.sb_pquotino))
+			xfs_scrub_block_set_preen(sc, bp);
+
+		/* Don't care about sb_lsn */
+	}
+
+	if (xfs_sb_version_hasmetauuid(&mp->m_sb)) {
+		/* The metadata UUID must be the same for all supers */
+		if (!uuid_equal(&sb->sb_meta_uuid, &mp->m_sb.sb_meta_uuid))
+			xfs_scrub_block_set_corrupt(sc, bp);
+	}
+
+	/* Everything else must be zero. */
+	if (memchr_inv(sb + 1, 0,
+			BBTOB(bp->b_length) - sizeof(struct xfs_dsb)))
+		xfs_scrub_block_set_corrupt(sc, bp);
+
+	return error;
+}
+
+/* AGF */
+
+/* Scrub the AGF. */
+int
+xfs_scrub_agf(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_agf			*agf;
+	xfs_agnumber_t			agno;
+	xfs_agblock_t			agbno;
+	xfs_agblock_t			eoag;
+	xfs_agblock_t			agfl_first;
+	xfs_agblock_t			agfl_last;
+	xfs_agblock_t			agfl_count;
+	xfs_agblock_t			fl_count;
+	int				level;
+	int				error = 0;
+
+	agno = sc->sa.agno = sc->sm->sm_agno;
+	error = xfs_scrub_ag_read_headers(sc, agno, &sc->sa.agi_bp,
+			&sc->sa.agf_bp, &sc->sa.agfl_bp);
+	if (!xfs_scrub_process_error(sc, agno, XFS_AGF_BLOCK(sc->mp), &error))
+		goto out;
+
+	agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
+
+	/* Check the AG length */
+	eoag = be32_to_cpu(agf->agf_length);
+	if (eoag != xfs_ag_block_count(mp, agno))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+	/* Check the AGF btree roots and levels */
+	agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_BNO]);
+	if (!xfs_verify_agbno(mp, agno, agbno))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+	agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_CNT]);
+	if (!xfs_verify_agbno(mp, agno, agbno))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+	level = be32_to_cpu(agf->agf_levels[XFS_BTNUM_BNO]);
+	if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+	level = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]);
+	if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
+		agbno = be32_to_cpu(agf->agf_roots[XFS_BTNUM_RMAP]);
+		if (!xfs_verify_agbno(mp, agno, agbno))
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+		level = be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]);
+		if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+	}
+
+	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+		agbno = be32_to_cpu(agf->agf_refcount_root);
+		if (!xfs_verify_agbno(mp, agno, agbno))
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+		level = be32_to_cpu(agf->agf_refcount_level);
+		if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+	}
+
+	/* Check the AGFL counters */
+	agfl_first = be32_to_cpu(agf->agf_flfirst);
+	agfl_last = be32_to_cpu(agf->agf_fllast);
+	agfl_count = be32_to_cpu(agf->agf_flcount);
+	if (agfl_last > agfl_first)
+		fl_count = agfl_last - agfl_first + 1;
+	else
+		fl_count = XFS_AGFL_SIZE(mp) - agfl_first + agfl_last + 1;
+	if (agfl_count != 0 && fl_count != agfl_count)
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+
+out:
+	return error;
+}
+
+/* AGFL */
+
+struct xfs_scrub_agfl_info {
+	unsigned int			sz_entries;
+	unsigned int			nr_entries;
+	xfs_agblock_t			*entries;
+};
+
+/* Scrub an AGFL block. */
+STATIC int
+xfs_scrub_agfl_block(
+	struct xfs_scrub_context	*sc,
+	xfs_agblock_t			agbno,
+	void				*priv)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_scrub_agfl_info	*sai = priv;
+	xfs_agnumber_t			agno = sc->sa.agno;
+
+	if (xfs_verify_agbno(mp, agno, agbno) &&
+	    sai->nr_entries < sai->sz_entries)
+		sai->entries[sai->nr_entries++] = agbno;
+	else
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agfl_bp);
+
+	return 0;
+}
+
+static int
+xfs_scrub_agblock_cmp(
+	const void		*pa,
+	const void		*pb)
+{
+	const xfs_agblock_t	*a = pa;
+	const xfs_agblock_t	*b = pb;
+
+	return (int)*a - (int)*b;
+}
+
+/* Scrub the AGFL. */
+int
+xfs_scrub_agfl(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_scrub_agfl_info	sai = { 0 };
+	struct xfs_agf			*agf;
+	xfs_agnumber_t			agno;
+	unsigned int			agflcount;
+	unsigned int			i;
+	int				error;
+
+	agno = sc->sa.agno = sc->sm->sm_agno;
+	error = xfs_scrub_ag_read_headers(sc, agno, &sc->sa.agi_bp,
+			&sc->sa.agf_bp, &sc->sa.agfl_bp);
+	if (!xfs_scrub_process_error(sc, agno, XFS_AGFL_BLOCK(sc->mp), &error))
+		goto out;
+	if (!sc->sa.agf_bp)
+		return -EFSCORRUPTED;
+
+	/* Allocate buffer to ensure uniqueness of AGFL entries. */
+	agf = XFS_BUF_TO_AGF(sc->sa.agf_bp);
+	agflcount = be32_to_cpu(agf->agf_flcount);
+	if (agflcount > XFS_AGFL_SIZE(sc->mp)) {
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+		goto out;
+	}
+	sai.sz_entries = agflcount;
+	sai.entries = kmem_zalloc(sizeof(xfs_agblock_t) * agflcount, KM_NOFS);
+	if (!sai.entries) {
+		error = -ENOMEM;
+		goto out;
+	}
+
+	/* Check the blocks in the AGFL. */
+	error = xfs_scrub_walk_agfl(sc, xfs_scrub_agfl_block, &sai);
+	if (error)
+		goto out_free;
+
+	if (agflcount != sai.nr_entries) {
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+		goto out_free;
+	}
+
+	/* Sort entries, check for duplicates. */
+	sort(sai.entries, sai.nr_entries, sizeof(sai.entries[0]),
+			xfs_scrub_agblock_cmp, NULL);
+	for (i = 1; i < sai.nr_entries; i++) {
+		if (sai.entries[i] == sai.entries[i - 1]) {
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agf_bp);
+			break;
+		}
+	}
+
+out_free:
+	kmem_free(sai.entries);
+out:
+	return error;
+}
+
+/* AGI */
+
+/* Scrub the AGI. */
+int
+xfs_scrub_agi(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_agi			*agi;
+	xfs_agnumber_t			agno;
+	xfs_agblock_t			agbno;
+	xfs_agblock_t			eoag;
+	xfs_agino_t			agino;
+	xfs_agino_t			first_agino;
+	xfs_agino_t			last_agino;
+	xfs_agino_t			icount;
+	int				i;
+	int				level;
+	int				error = 0;
+
+	agno = sc->sa.agno = sc->sm->sm_agno;
+	error = xfs_scrub_ag_read_headers(sc, agno, &sc->sa.agi_bp,
+			&sc->sa.agf_bp, &sc->sa.agfl_bp);
+	if (!xfs_scrub_process_error(sc, agno, XFS_AGI_BLOCK(sc->mp), &error))
+		goto out;
+
+	agi = XFS_BUF_TO_AGI(sc->sa.agi_bp);
+
+	/* Check the AG length */
+	eoag = be32_to_cpu(agi->agi_length);
+	if (eoag != xfs_ag_block_count(mp, agno))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+	/* Check btree roots and levels */
+	agbno = be32_to_cpu(agi->agi_root);
+	if (!xfs_verify_agbno(mp, agno, agbno))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+	level = be32_to_cpu(agi->agi_level);
+	if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+	if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
+		agbno = be32_to_cpu(agi->agi_free_root);
+		if (!xfs_verify_agbno(mp, agno, agbno))
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+		level = be32_to_cpu(agi->agi_free_level);
+		if (level <= 0 || level > XFS_BTREE_MAXLEVELS)
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+	}
+
+	/* Check inode counters */
+	xfs_ialloc_agino_range(mp, agno, &first_agino, &last_agino);
+	icount = be32_to_cpu(agi->agi_count);
+	if (icount > last_agino - first_agino + 1 ||
+	    icount < be32_to_cpu(agi->agi_freecount))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+	/* Check inode pointers */
+	agino = be32_to_cpu(agi->agi_newino);
+	if (agino != NULLAGINO && !xfs_verify_agino(mp, agno, agino))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+	agino = be32_to_cpu(agi->agi_dirino);
+	if (agino != NULLAGINO && !xfs_verify_agino(mp, agno, agino))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+	/* Check unlinked inode buckets */
+	for (i = 0; i < XFS_AGI_UNLINKED_BUCKETS; i++) {
+		agino = be32_to_cpu(agi->agi_unlinked[i]);
+		if (agino == NULLAGINO)
+			continue;
+		if (!xfs_verify_agino(mp, agno, agino))
+			xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+	}
+
+	if (agi->agi_pad32 != cpu_to_be32(0))
+		xfs_scrub_block_set_corrupt(sc, sc->sa.agi_bp);
+
+out:
+	return error;
+}
diff --git a/fs/xfs/scrub/alloc.c b/fs/xfs/scrub/alloc.c
new file mode 100644
index 000000000000..059663e13414
--- /dev/null
+++ b/fs/xfs/scrub/alloc.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_alloc.h"
+#include "xfs_rmap.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/btree.h"
+#include "scrub/trace.h"
+
+/*
+ * Set us up to scrub free space btrees.
+ */
+int
+xfs_scrub_setup_ag_allocbt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_setup_ag_btree(sc, ip, false);
+}
+
+/* Free space btree scrubber. */
+
+/* Scrub a bnobt/cntbt record. */
+STATIC int
+xfs_scrub_allocbt_rec(
+	struct xfs_scrub_btree		*bs,
+	union xfs_btree_rec		*rec)
+{
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	xfs_agnumber_t			agno = bs->cur->bc_private.a.agno;
+	xfs_agblock_t			bno;
+	xfs_extlen_t			len;
+	int				error = 0;
+
+	bno = be32_to_cpu(rec->alloc.ar_startblock);
+	len = be32_to_cpu(rec->alloc.ar_blockcount);
+
+	if (bno + len <= bno ||
+	    !xfs_verify_agbno(mp, agno, bno) ||
+	    !xfs_verify_agbno(mp, agno, bno + len - 1))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	return error;
+}
+
+/* Scrub the freespace btrees for some AG. */
+STATIC int
+xfs_scrub_allocbt(
+	struct xfs_scrub_context	*sc,
+	xfs_btnum_t			which)
+{
+	struct xfs_owner_info		oinfo;
+	struct xfs_btree_cur		*cur;
+
+	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_AG);
+	cur = which == XFS_BTNUM_BNO ? sc->sa.bno_cur : sc->sa.cnt_cur;
+	return xfs_scrub_btree(sc, cur, xfs_scrub_allocbt_rec, &oinfo, NULL);
+}
+
+int
+xfs_scrub_bnobt(
+	struct xfs_scrub_context	*sc)
+{
+	return xfs_scrub_allocbt(sc, XFS_BTNUM_BNO);
+}
+
+int
+xfs_scrub_cntbt(
+	struct xfs_scrub_context	*sc)
+{
+	return xfs_scrub_allocbt(sc, XFS_BTNUM_CNT);
+}
diff --git a/fs/xfs/scrub/attr.c b/fs/xfs/scrub/attr.c
new file mode 100644
index 000000000000..4ed80474f545
--- /dev/null
+++ b/fs/xfs/scrub/attr.c
@@ -0,0 +1,471 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2.h"
+#include "xfs_attr.h"
+#include "xfs_attr_leaf.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/dabtree.h"
+#include "scrub/trace.h"
+
+#include <linux/posix_acl_xattr.h>
+#include <linux/xattr.h>
+
+/* Set us up to scrub an inode's extended attributes. */
+int
+xfs_scrub_setup_xattr(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	size_t				sz;
+
+	/*
+	 * Allocate the buffer without the inode lock held.  We need enough
+	 * space to read every xattr value in the file or enough space to
+	 * hold three copies of the xattr free space bitmap.  (Not both at
+	 * the same time.)
+	 */
+	sz = max_t(size_t, XATTR_SIZE_MAX, 3 * sizeof(long) *
+			BITS_TO_LONGS(sc->mp->m_attr_geo->blksize));
+	sc->buf = kmem_zalloc_large(sz, KM_SLEEP);
+	if (!sc->buf)
+		return -ENOMEM;
+
+	return xfs_scrub_setup_inode_contents(sc, ip, 0);
+}
+
+/* Extended Attributes */
+
+struct xfs_scrub_xattr {
+	struct xfs_attr_list_context	context;
+	struct xfs_scrub_context	*sc;
+};
+
+/*
+ * Check that an extended attribute key can be looked up by hash.
+ *
+ * We use the XFS attribute list iterator (i.e. xfs_attr_list_int_ilocked)
+ * to call this function for every attribute key in an inode.  Once
+ * we're here, we load the attribute value to see if any errors happen,
+ * or if we get more or less data than we expected.
+ */
+static void
+xfs_scrub_xattr_listent(
+	struct xfs_attr_list_context	*context,
+	int				flags,
+	unsigned char			*name,
+	int				namelen,
+	int				valuelen)
+{
+	struct xfs_scrub_xattr		*sx;
+	struct xfs_da_args		args = { NULL };
+	int				error = 0;
+
+	sx = container_of(context, struct xfs_scrub_xattr, context);
+
+	if (flags & XFS_ATTR_INCOMPLETE) {
+		/* Incomplete attr key, just mark the inode for preening. */
+		xfs_scrub_ino_set_preen(sx->sc, context->dp->i_ino, NULL);
+		return;
+	}
+
+	args.flags = ATTR_KERNOTIME;
+	if (flags & XFS_ATTR_ROOT)
+		args.flags |= ATTR_ROOT;
+	else if (flags & XFS_ATTR_SECURE)
+		args.flags |= ATTR_SECURE;
+	args.geo = context->dp->i_mount->m_attr_geo;
+	args.whichfork = XFS_ATTR_FORK;
+	args.dp = context->dp;
+	args.name = name;
+	args.namelen = namelen;
+	args.hashval = xfs_da_hashname(args.name, args.namelen);
+	args.trans = context->tp;
+	args.value = sx->sc->buf;
+	args.valuelen = XATTR_SIZE_MAX;
+
+	error = xfs_attr_get_ilocked(context->dp, &args);
+	if (error == -EEXIST)
+		error = 0;
+	if (!xfs_scrub_fblock_process_error(sx->sc, XFS_ATTR_FORK, args.blkno,
+			&error))
+		goto fail_xref;
+	if (args.valuelen != valuelen)
+		xfs_scrub_fblock_set_corrupt(sx->sc, XFS_ATTR_FORK,
+					     args.blkno);
+
+fail_xref:
+	return;
+}
+
+/*
+ * Mark a range [start, start+len) in this map.  Returns true if the
+ * region was free, and false if there's a conflict or a problem.
+ *
+ * Within a char, the lowest bit of the char represents the byte with
+ * the smallest address
+ */
+STATIC bool
+xfs_scrub_xattr_set_map(
+	struct xfs_scrub_context	*sc,
+	unsigned long			*map,
+	unsigned int			start,
+	unsigned int			len)
+{
+	unsigned int			mapsize = sc->mp->m_attr_geo->blksize;
+	bool				ret = true;
+
+	if (start >= mapsize)
+		return false;
+	if (start + len > mapsize) {
+		len = mapsize - start;
+		ret = false;
+	}
+
+	if (find_next_bit(map, mapsize, start) < start + len)
+		ret = false;
+	bitmap_set(map, start, len);
+
+	return ret;
+}
+
+/*
+ * Check the leaf freemap from the usage bitmap.  Returns false if the
+ * attr freemap has problems or points to used space.
+ */
+STATIC bool
+xfs_scrub_xattr_check_freemap(
+	struct xfs_scrub_context	*sc,
+	unsigned long			*map,
+	struct xfs_attr3_icleaf_hdr	*leafhdr)
+{
+	unsigned long			*freemap;
+	unsigned long			*dstmap;
+	unsigned int			mapsize = sc->mp->m_attr_geo->blksize;
+	int				i;
+
+	/* Construct bitmap of freemap contents. */
+	freemap = (unsigned long *)sc->buf + BITS_TO_LONGS(mapsize);
+	bitmap_zero(freemap, mapsize);
+	for (i = 0; i < XFS_ATTR_LEAF_MAPSIZE; i++) {
+		if (!xfs_scrub_xattr_set_map(sc, freemap,
+				leafhdr->freemap[i].base,
+				leafhdr->freemap[i].size))
+			return false;
+	}
+
+	/* Look for bits that are set in freemap and are marked in use. */
+	dstmap = freemap + BITS_TO_LONGS(mapsize);
+	return bitmap_and(dstmap, freemap, map, mapsize) == 0;
+}
+
+/*
+ * Check this leaf entry's relations to everything else.
+ * Returns the number of bytes used for the name/value data.
+ */
+STATIC void
+xfs_scrub_xattr_entry(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	char				*buf_end,
+	struct xfs_attr_leafblock	*leaf,
+	struct xfs_attr3_icleaf_hdr	*leafhdr,
+	unsigned long			*usedmap,
+	struct xfs_attr_leaf_entry	*ent,
+	int				idx,
+	unsigned int			*usedbytes,
+	__u32				*last_hashval)
+{
+	struct xfs_mount		*mp = ds->state->mp;
+	char				*name_end;
+	struct xfs_attr_leaf_name_local	*lentry;
+	struct xfs_attr_leaf_name_remote *rentry;
+	unsigned int			nameidx;
+	unsigned int			namesize;
+
+	if (ent->pad2 != 0)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	/* Hash values in order? */
+	if (be32_to_cpu(ent->hashval) < *last_hashval)
+		xfs_scrub_da_set_corrupt(ds, level);
+	*last_hashval = be32_to_cpu(ent->hashval);
+
+	nameidx = be16_to_cpu(ent->nameidx);
+	if (nameidx < leafhdr->firstused ||
+	    nameidx >= mp->m_attr_geo->blksize) {
+		xfs_scrub_da_set_corrupt(ds, level);
+		return;
+	}
+
+	/* Check the name information. */
+	if (ent->flags & XFS_ATTR_LOCAL) {
+		lentry = xfs_attr3_leaf_name_local(leaf, idx);
+		namesize = xfs_attr_leaf_entsize_local(lentry->namelen,
+				be16_to_cpu(lentry->valuelen));
+		name_end = (char *)lentry + namesize;
+		if (lentry->namelen == 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+	} else {
+		rentry = xfs_attr3_leaf_name_remote(leaf, idx);
+		namesize = xfs_attr_leaf_entsize_remote(rentry->namelen);
+		name_end = (char *)rentry + namesize;
+		if (rentry->namelen == 0 || rentry->valueblk == 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+	}
+	if (name_end > buf_end)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	if (!xfs_scrub_xattr_set_map(ds->sc, usedmap, nameidx, namesize))
+		xfs_scrub_da_set_corrupt(ds, level);
+	if (!(ds->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
+		*usedbytes += namesize;
+}
+
+/* Scrub an attribute leaf. */
+STATIC int
+xfs_scrub_xattr_block(
+	struct xfs_scrub_da_btree	*ds,
+	int				level)
+{
+	struct xfs_attr3_icleaf_hdr	leafhdr;
+	struct xfs_mount		*mp = ds->state->mp;
+	struct xfs_da_state_blk		*blk = &ds->state->path.blk[level];
+	struct xfs_buf			*bp = blk->bp;
+	xfs_dablk_t			*last_checked = ds->private;
+	struct xfs_attr_leafblock	*leaf = bp->b_addr;
+	struct xfs_attr_leaf_entry	*ent;
+	struct xfs_attr_leaf_entry	*entries;
+	unsigned long			*usedmap = ds->sc->buf;
+	char				*buf_end;
+	size_t				off;
+	__u32				last_hashval = 0;
+	unsigned int			usedbytes = 0;
+	unsigned int			hdrsize;
+	int				i;
+
+	if (*last_checked == blk->blkno)
+		return 0;
+	*last_checked = blk->blkno;
+	bitmap_zero(usedmap, mp->m_attr_geo->blksize);
+
+	/* Check all the padding. */
+	if (xfs_sb_version_hascrc(&ds->sc->mp->m_sb)) {
+		struct xfs_attr3_leafblock	*leaf = bp->b_addr;
+
+		if (leaf->hdr.pad1 != 0 || leaf->hdr.pad2 != 0 ||
+		    leaf->hdr.info.hdr.pad != 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+	} else {
+		if (leaf->hdr.pad1 != 0 || leaf->hdr.info.pad != 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+	}
+
+	/* Check the leaf header */
+	xfs_attr3_leaf_hdr_from_disk(mp->m_attr_geo, &leafhdr, leaf);
+	hdrsize = xfs_attr3_leaf_hdr_size(leaf);
+
+	if (leafhdr.usedbytes > mp->m_attr_geo->blksize)
+		xfs_scrub_da_set_corrupt(ds, level);
+	if (leafhdr.firstused > mp->m_attr_geo->blksize)
+		xfs_scrub_da_set_corrupt(ds, level);
+	if (leafhdr.firstused < hdrsize)
+		xfs_scrub_da_set_corrupt(ds, level);
+	if (!xfs_scrub_xattr_set_map(ds->sc, usedmap, 0, hdrsize))
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	if (ds->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	entries = xfs_attr3_leaf_entryp(leaf);
+	if ((char *)&entries[leafhdr.count] > (char *)leaf + leafhdr.firstused)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	buf_end = (char *)bp->b_addr + mp->m_attr_geo->blksize;
+	for (i = 0, ent = entries; i < leafhdr.count; ent++, i++) {
+		/* Mark the leaf entry itself. */
+		off = (char *)ent - (char *)leaf;
+		if (!xfs_scrub_xattr_set_map(ds->sc, usedmap, off,
+				sizeof(xfs_attr_leaf_entry_t))) {
+			xfs_scrub_da_set_corrupt(ds, level);
+			goto out;
+		}
+
+		/* Check the entry and nameval. */
+		xfs_scrub_xattr_entry(ds, level, buf_end, leaf, &leafhdr,
+				usedmap, ent, i, &usedbytes, &last_hashval);
+
+		if (ds->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+			goto out;
+	}
+
+	if (!xfs_scrub_xattr_check_freemap(ds->sc, usedmap, &leafhdr))
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	if (leafhdr.usedbytes != usedbytes)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+out:
+	return 0;
+}
+
+/* Scrub a attribute btree record. */
+STATIC int
+xfs_scrub_xattr_rec(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	void				*rec)
+{
+	struct xfs_mount		*mp = ds->state->mp;
+	struct xfs_attr_leaf_entry	*ent = rec;
+	struct xfs_da_state_blk		*blk;
+	struct xfs_attr_leaf_name_local	*lentry;
+	struct xfs_attr_leaf_name_remote	*rentry;
+	struct xfs_buf			*bp;
+	xfs_dahash_t			calc_hash;
+	xfs_dahash_t			hash;
+	int				nameidx;
+	int				hdrsize;
+	unsigned int			badflags;
+	int				error;
+
+	blk = &ds->state->path.blk[level];
+
+	/* Check the whole block, if necessary. */
+	error = xfs_scrub_xattr_block(ds, level);
+	if (error)
+		goto out;
+	if (ds->sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Check the hash of the entry. */
+	error = xfs_scrub_da_btree_hash(ds, level, &ent->hashval);
+	if (error)
+		goto out;
+
+	/* Find the attr entry's location. */
+	bp = blk->bp;
+	hdrsize = xfs_attr3_leaf_hdr_size(bp->b_addr);
+	nameidx = be16_to_cpu(ent->nameidx);
+	if (nameidx < hdrsize || nameidx >= mp->m_attr_geo->blksize) {
+		xfs_scrub_da_set_corrupt(ds, level);
+		goto out;
+	}
+
+	/* Retrieve the entry and check it. */
+	hash = be32_to_cpu(ent->hashval);
+	badflags = ~(XFS_ATTR_LOCAL | XFS_ATTR_ROOT | XFS_ATTR_SECURE |
+			XFS_ATTR_INCOMPLETE);
+	if ((ent->flags & badflags) != 0)
+		xfs_scrub_da_set_corrupt(ds, level);
+	if (ent->flags & XFS_ATTR_LOCAL) {
+		lentry = (struct xfs_attr_leaf_name_local *)
+				(((char *)bp->b_addr) + nameidx);
+		if (lentry->namelen <= 0) {
+			xfs_scrub_da_set_corrupt(ds, level);
+			goto out;
+		}
+		calc_hash = xfs_da_hashname(lentry->nameval, lentry->namelen);
+	} else {
+		rentry = (struct xfs_attr_leaf_name_remote *)
+				(((char *)bp->b_addr) + nameidx);
+		if (rentry->namelen <= 0) {
+			xfs_scrub_da_set_corrupt(ds, level);
+			goto out;
+		}
+		calc_hash = xfs_da_hashname(rentry->name, rentry->namelen);
+	}
+	if (calc_hash != hash)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+out:
+	return error;
+}
+
+/* Scrub the extended attribute metadata. */
+int
+xfs_scrub_xattr(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_scrub_xattr		sx;
+	struct attrlist_cursor_kern	cursor = { 0 };
+	xfs_dablk_t			last_checked = -1U;
+	int				error = 0;
+
+	if (!xfs_inode_hasattr(sc->ip))
+		return -ENOENT;
+
+	memset(&sx, 0, sizeof(sx));
+	/* Check attribute tree structure */
+	error = xfs_scrub_da_btree(sc, XFS_ATTR_FORK, xfs_scrub_xattr_rec,
+			&last_checked);
+	if (error)
+		goto out;
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Check that every attr key can also be looked up by hash. */
+	sx.context.dp = sc->ip;
+	sx.context.cursor = &cursor;
+	sx.context.resynch = 1;
+	sx.context.put_listent = xfs_scrub_xattr_listent;
+	sx.context.tp = sc->tp;
+	sx.context.flags = ATTR_INCOMPLETE;
+	sx.sc = sc;
+
+	/*
+	 * Look up every xattr in this file by name.
+	 *
+	 * Use the backend implementation of xfs_attr_list to call
+	 * xfs_scrub_xattr_listent on every attribute key in this inode.
+	 * In other words, we use the same iterator/callback mechanism
+	 * that listattr uses to scrub extended attributes, though in our
+	 * _listent function, we check the value of the attribute.
+	 *
+	 * The VFS only locks i_rwsem when modifying attrs, so keep all
+	 * three locks held because that's the only way to ensure we're
+	 * the only thread poking into the da btree.  We traverse the da
+	 * btree while holding a leaf buffer locked for the xattr name
+	 * iteration, which doesn't really follow the usual buffer
+	 * locking order.
+	 */
+	error = xfs_attr_list_int_ilocked(&sx.context);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_ATTR_FORK, 0, &error))
+		goto out;
+out:
+	return error;
+}
diff --git a/fs/xfs/scrub/bmap.c b/fs/xfs/scrub/bmap.c
new file mode 100644
index 000000000000..42fec0bcd9e1
--- /dev/null
+++ b/fs/xfs/scrub/bmap.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_inode_fork.h"
+#include "xfs_alloc.h"
+#include "xfs_rtalloc.h"
+#include "xfs_bmap.h"
+#include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_rmap.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/btree.h"
+#include "scrub/trace.h"
+
+/* Set us up with an inode's bmap. */
+int
+xfs_scrub_setup_inode_bmap(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	struct xfs_mount		*mp = sc->mp;
+	int				error;
+
+	error = xfs_scrub_get_inode(sc, ip);
+	if (error)
+		goto out;
+
+	sc->ilock_flags = XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL;
+	xfs_ilock(sc->ip, sc->ilock_flags);
+
+	/*
+	 * We don't want any ephemeral data fork updates sitting around
+	 * while we inspect block mappings, so wait for directio to finish
+	 * and flush dirty data if we have delalloc reservations.
+	 */
+	if (S_ISREG(VFS_I(sc->ip)->i_mode) &&
+	    sc->sm->sm_type == XFS_SCRUB_TYPE_BMBTD) {
+		inode_dio_wait(VFS_I(sc->ip));
+		error = filemap_write_and_wait(VFS_I(sc->ip)->i_mapping);
+		if (error)
+			goto out;
+	}
+
+	/* Got the inode, lock it and we're ready to go. */
+	error = xfs_scrub_trans_alloc(sc->sm, mp, &sc->tp);
+	if (error)
+		goto out;
+	sc->ilock_flags |= XFS_ILOCK_EXCL;
+	xfs_ilock(sc->ip, XFS_ILOCK_EXCL);
+
+out:
+	/* scrub teardown will unlock and release the inode */
+	return error;
+}
+
+/*
+ * Inode fork block mapping (BMBT) scrubber.
+ * More complex than the others because we have to scrub
+ * all the extents regardless of whether or not the fork
+ * is in btree format.
+ */
+
+struct xfs_scrub_bmap_info {
+	struct xfs_scrub_context	*sc;
+	xfs_fileoff_t			lastoff;
+	bool				is_rt;
+	bool				is_shared;
+	int				whichfork;
+};
+
+/* Scrub a single extent record. */
+STATIC int
+xfs_scrub_bmap_extent(
+	struct xfs_inode		*ip,
+	struct xfs_btree_cur		*cur,
+	struct xfs_scrub_bmap_info	*info,
+	struct xfs_bmbt_irec		*irec)
+{
+	struct xfs_mount		*mp = info->sc->mp;
+	struct xfs_buf			*bp = NULL;
+	int				error = 0;
+
+	if (cur)
+		xfs_btree_get_block(cur, 0, &bp);
+
+	/*
+	 * Check for out-of-order extents.  This record could have come
+	 * from the incore list, for which there is no ordering check.
+	 */
+	if (irec->br_startoff < info->lastoff)
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+
+	/* There should never be a "hole" extent in either extent list. */
+	if (irec->br_startblock == HOLESTARTBLOCK)
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+
+	/*
+	 * Check for delalloc extents.  We never iterate the ones in the
+	 * in-core extent scan, and we should never see these in the bmbt.
+	 */
+	if (isnullstartblock(irec->br_startblock))
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+
+	/* Make sure the extent points to a valid place. */
+	if (irec->br_startblock + irec->br_blockcount <= irec->br_startblock)
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+	if (info->is_rt &&
+	    (!xfs_verify_rtbno(mp, irec->br_startblock) ||
+	     !xfs_verify_rtbno(mp, irec->br_startblock +
+				irec->br_blockcount - 1)))
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+	if (!info->is_rt &&
+	    (!xfs_verify_fsbno(mp, irec->br_startblock) ||
+	     !xfs_verify_fsbno(mp, irec->br_startblock +
+				irec->br_blockcount - 1)))
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+
+	/* We don't allow unwritten extents on attr forks. */
+	if (irec->br_state == XFS_EXT_UNWRITTEN &&
+	    info->whichfork == XFS_ATTR_FORK)
+		xfs_scrub_fblock_set_corrupt(info->sc, info->whichfork,
+				irec->br_startoff);
+
+	info->lastoff = irec->br_startoff + irec->br_blockcount;
+	return error;
+}
+
+/* Scrub a bmbt record. */
+STATIC int
+xfs_scrub_bmapbt_rec(
+	struct xfs_scrub_btree		*bs,
+	union xfs_btree_rec		*rec)
+{
+	struct xfs_bmbt_irec		irec;
+	struct xfs_scrub_bmap_info	*info = bs->private;
+	struct xfs_inode		*ip = bs->cur->bc_private.b.ip;
+	struct xfs_buf			*bp = NULL;
+	struct xfs_btree_block		*block;
+	uint64_t			owner;
+	int				i;
+
+	/*
+	 * Check the owners of the btree blocks up to the level below
+	 * the root since the verifiers don't do that.
+	 */
+	if (xfs_sb_version_hascrc(&bs->cur->bc_mp->m_sb) &&
+	    bs->cur->bc_ptrs[0] == 1) {
+		for (i = 0; i < bs->cur->bc_nlevels - 1; i++) {
+			block = xfs_btree_get_block(bs->cur, i, &bp);
+			owner = be64_to_cpu(block->bb_u.l.bb_owner);
+			if (owner != ip->i_ino)
+				xfs_scrub_fblock_set_corrupt(bs->sc,
+						info->whichfork, 0);
+		}
+	}
+
+	/* Set up the in-core record and scrub it. */
+	xfs_bmbt_disk_get_all(&rec->bmbt, &irec);
+	return xfs_scrub_bmap_extent(ip, bs->cur, info, &irec);
+}
+
+/* Scan the btree records. */
+STATIC int
+xfs_scrub_bmap_btree(
+	struct xfs_scrub_context	*sc,
+	int				whichfork,
+	struct xfs_scrub_bmap_info	*info)
+{
+	struct xfs_owner_info		oinfo;
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_inode		*ip = sc->ip;
+	struct xfs_btree_cur		*cur;
+	int				error;
+
+	cur = xfs_bmbt_init_cursor(mp, sc->tp, ip, whichfork);
+	xfs_rmap_ino_bmbt_owner(&oinfo, ip->i_ino, whichfork);
+	error = xfs_scrub_btree(sc, cur, xfs_scrub_bmapbt_rec, &oinfo, info);
+	xfs_btree_del_cursor(cur, error ? XFS_BTREE_ERROR :
+					  XFS_BTREE_NOERROR);
+	return error;
+}
+
+/*
+ * Scrub an inode fork's block mappings.
+ *
+ * First we scan every record in every btree block, if applicable.
+ * Then we unconditionally scan the incore extent cache.
+ */
+STATIC int
+xfs_scrub_bmap(
+	struct xfs_scrub_context	*sc,
+	int				whichfork)
+{
+	struct xfs_bmbt_irec		irec;
+	struct xfs_scrub_bmap_info	info = { NULL };
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_inode		*ip = sc->ip;
+	struct xfs_ifork		*ifp;
+	xfs_fileoff_t			endoff;
+	struct xfs_iext_cursor		icur;
+	bool				found;
+	int				error = 0;
+
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+
+	info.is_rt = whichfork == XFS_DATA_FORK && XFS_IS_REALTIME_INODE(ip);
+	info.whichfork = whichfork;
+	info.is_shared = whichfork == XFS_DATA_FORK && xfs_is_reflink_inode(ip);
+	info.sc = sc;
+
+	switch (whichfork) {
+	case XFS_COW_FORK:
+		/* Non-existent CoW forks are ignorable. */
+		if (!ifp)
+			goto out;
+		/* No CoW forks on non-reflink inodes/filesystems. */
+		if (!xfs_is_reflink_inode(ip)) {
+			xfs_scrub_ino_set_corrupt(sc, sc->ip->i_ino, NULL);
+			goto out;
+		}
+		break;
+	case XFS_ATTR_FORK:
+		if (!ifp)
+			goto out;
+		if (!xfs_sb_version_hasattr(&mp->m_sb) &&
+		    !xfs_sb_version_hasattr2(&mp->m_sb))
+			xfs_scrub_ino_set_corrupt(sc, sc->ip->i_ino, NULL);
+		break;
+	default:
+		ASSERT(whichfork == XFS_DATA_FORK);
+		break;
+	}
+
+	/* Check the fork values */
+	switch (XFS_IFORK_FORMAT(ip, whichfork)) {
+	case XFS_DINODE_FMT_UUID:
+	case XFS_DINODE_FMT_DEV:
+	case XFS_DINODE_FMT_LOCAL:
+		/* No mappings to check. */
+		goto out;
+	case XFS_DINODE_FMT_EXTENTS:
+		if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+			xfs_scrub_fblock_set_corrupt(sc, whichfork, 0);
+			goto out;
+		}
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		if (whichfork == XFS_COW_FORK) {
+			xfs_scrub_fblock_set_corrupt(sc, whichfork, 0);
+			goto out;
+		}
+
+		error = xfs_scrub_bmap_btree(sc, whichfork, &info);
+		if (error)
+			goto out;
+		break;
+	default:
+		xfs_scrub_fblock_set_corrupt(sc, whichfork, 0);
+		goto out;
+	}
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Now try to scrub the in-memory extent list. */
+        if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+		error = xfs_iread_extents(sc->tp, ip, whichfork);
+		if (!xfs_scrub_fblock_process_error(sc, whichfork, 0, &error))
+			goto out;
+	}
+
+	/* Find the offset of the last extent in the mapping. */
+	error = xfs_bmap_last_offset(ip, &endoff, whichfork);
+	if (!xfs_scrub_fblock_process_error(sc, whichfork, 0, &error))
+		goto out;
+
+	/* Scrub extent records. */
+	info.lastoff = 0;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
+	for (found = xfs_iext_lookup_extent(ip, ifp, 0, &icur, &irec);
+	     found != 0;
+	     found = xfs_iext_next_extent(ifp, &icur, &irec)) {
+		if (xfs_scrub_should_terminate(sc, &error))
+			break;
+		if (isnullstartblock(irec.br_startblock))
+			continue;
+		if (irec.br_startoff >= endoff) {
+			xfs_scrub_fblock_set_corrupt(sc, whichfork,
+					irec.br_startoff);
+			goto out;
+		}
+		error = xfs_scrub_bmap_extent(ip, NULL, &info, &irec);
+		if (error)
+			goto out;
+	}
+
+out:
+	return error;
+}
+
+/* Scrub an inode's data fork. */
+int
+xfs_scrub_bmap_data(
+	struct xfs_scrub_context	*sc)
+{
+	return xfs_scrub_bmap(sc, XFS_DATA_FORK);
+}
+
+/* Scrub an inode's attr fork. */
+int
+xfs_scrub_bmap_attr(
+	struct xfs_scrub_context	*sc)
+{
+	return xfs_scrub_bmap(sc, XFS_ATTR_FORK);
+}
+
+/* Scrub an inode's CoW fork. */
+int
+xfs_scrub_bmap_cow(
+	struct xfs_scrub_context	*sc)
+{
+	if (!xfs_is_reflink_inode(sc->ip))
+		return -ENOENT;
+
+	return xfs_scrub_bmap(sc, XFS_COW_FORK);
+}
diff --git a/fs/xfs/scrub/btree.c b/fs/xfs/scrub/btree.c
new file mode 100644
index 000000000000..df0766132ace
--- /dev/null
+++ b/fs/xfs/scrub/btree.c
@@ -0,0 +1,516 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/btree.h"
+#include "scrub/trace.h"
+
+/* btree scrubbing */
+
+/*
+ * Check for btree operation errors.  See the section about handling
+ * operational errors in common.c.
+ */
+bool
+xfs_scrub_btree_process_error(
+	struct xfs_scrub_context	*sc,
+	struct xfs_btree_cur		*cur,
+	int				level,
+	int				*error)
+{
+	if (*error == 0)
+		return true;
+
+	switch (*error) {
+	case -EDEADLOCK:
+		/* Used to restart an op with deadlock avoidance. */
+		trace_xfs_scrub_deadlock_retry(sc->ip, sc->sm, *error);
+		break;
+	case -EFSBADCRC:
+	case -EFSCORRUPTED:
+		/* Note the badness but don't abort. */
+		sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+		*error = 0;
+		/* fall through */
+	default:
+		if (cur->bc_flags & XFS_BTREE_ROOT_IN_INODE)
+			trace_xfs_scrub_ifork_btree_op_error(sc, cur, level,
+					*error, __return_address);
+		else
+			trace_xfs_scrub_btree_op_error(sc, cur, level,
+					*error, __return_address);
+		break;
+	}
+	return false;
+}
+
+/* Record btree block corruption. */
+void
+xfs_scrub_btree_set_corrupt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_btree_cur		*cur,
+	int				level)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+
+	if (cur->bc_flags & XFS_BTREE_ROOT_IN_INODE)
+		trace_xfs_scrub_ifork_btree_error(sc, cur, level,
+				__return_address);
+	else
+		trace_xfs_scrub_btree_error(sc, cur, level,
+				__return_address);
+}
+
+/*
+ * Make sure this record is in order and doesn't stray outside of the parent
+ * keys.
+ */
+STATIC void
+xfs_scrub_btree_rec(
+	struct xfs_scrub_btree	*bs)
+{
+	struct xfs_btree_cur	*cur = bs->cur;
+	union xfs_btree_rec	*rec;
+	union xfs_btree_key	key;
+	union xfs_btree_key	hkey;
+	union xfs_btree_key	*keyp;
+	struct xfs_btree_block	*block;
+	struct xfs_btree_block	*keyblock;
+	struct xfs_buf		*bp;
+
+	block = xfs_btree_get_block(cur, 0, &bp);
+	rec = xfs_btree_rec_addr(cur, cur->bc_ptrs[0], block);
+
+	trace_xfs_scrub_btree_rec(bs->sc, cur, 0);
+
+	/* If this isn't the first record, are they in order? */
+	if (!bs->firstrec && !cur->bc_ops->recs_inorder(cur, &bs->lastrec, rec))
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, 0);
+	bs->firstrec = false;
+	memcpy(&bs->lastrec, rec, cur->bc_ops->rec_len);
+
+	if (cur->bc_nlevels == 1)
+		return;
+
+	/* Is this at least as large as the parent low key? */
+	cur->bc_ops->init_key_from_rec(&key, rec);
+	keyblock = xfs_btree_get_block(cur, 1, &bp);
+	keyp = xfs_btree_key_addr(cur, cur->bc_ptrs[1], keyblock);
+	if (cur->bc_ops->diff_two_keys(cur, &key, keyp) < 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, 1);
+
+	if (!(cur->bc_flags & XFS_BTREE_OVERLAPPING))
+		return;
+
+	/* Is this no larger than the parent high key? */
+	cur->bc_ops->init_high_key_from_rec(&hkey, rec);
+	keyp = xfs_btree_high_key_addr(cur, cur->bc_ptrs[1], keyblock);
+	if (cur->bc_ops->diff_two_keys(cur, keyp, &hkey) < 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, 1);
+}
+
+/*
+ * Make sure this key is in order and doesn't stray outside of the parent
+ * keys.
+ */
+STATIC void
+xfs_scrub_btree_key(
+	struct xfs_scrub_btree	*bs,
+	int			level)
+{
+	struct xfs_btree_cur	*cur = bs->cur;
+	union xfs_btree_key	*key;
+	union xfs_btree_key	*keyp;
+	struct xfs_btree_block	*block;
+	struct xfs_btree_block	*keyblock;
+	struct xfs_buf		*bp;
+
+	block = xfs_btree_get_block(cur, level, &bp);
+	key = xfs_btree_key_addr(cur, cur->bc_ptrs[level], block);
+
+	trace_xfs_scrub_btree_key(bs->sc, cur, level);
+
+	/* If this isn't the first key, are they in order? */
+	if (!bs->firstkey[level] &&
+	    !cur->bc_ops->keys_inorder(cur, &bs->lastkey[level], key))
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, level);
+	bs->firstkey[level] = false;
+	memcpy(&bs->lastkey[level], key, cur->bc_ops->key_len);
+
+	if (level + 1 >= cur->bc_nlevels)
+		return;
+
+	/* Is this at least as large as the parent low key? */
+	keyblock = xfs_btree_get_block(cur, level + 1, &bp);
+	keyp = xfs_btree_key_addr(cur, cur->bc_ptrs[level + 1], keyblock);
+	if (cur->bc_ops->diff_two_keys(cur, key, keyp) < 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, level);
+
+	if (!(cur->bc_flags & XFS_BTREE_OVERLAPPING))
+		return;
+
+	/* Is this no larger than the parent high key? */
+	key = xfs_btree_high_key_addr(cur, cur->bc_ptrs[level], block);
+	keyp = xfs_btree_high_key_addr(cur, cur->bc_ptrs[level + 1], keyblock);
+	if (cur->bc_ops->diff_two_keys(cur, keyp, key) < 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, level);
+}
+
+/*
+ * Check a btree pointer.  Returns true if it's ok to use this pointer.
+ * Callers do not need to set the corrupt flag.
+ */
+static bool
+xfs_scrub_btree_ptr_ok(
+	struct xfs_scrub_btree		*bs,
+	int				level,
+	union xfs_btree_ptr		*ptr)
+{
+	bool				res;
+
+	/* A btree rooted in an inode has no block pointer to the root. */
+	if ((bs->cur->bc_flags & XFS_BTREE_ROOT_IN_INODE) &&
+	    level == bs->cur->bc_nlevels)
+		return true;
+
+	/* Otherwise, check the pointers. */
+	if (bs->cur->bc_flags & XFS_BTREE_LONG_PTRS)
+		res = xfs_btree_check_lptr(bs->cur, be64_to_cpu(ptr->l), level);
+	else
+		res = xfs_btree_check_sptr(bs->cur, be32_to_cpu(ptr->s), level);
+	if (!res)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, level);
+
+	return res;
+}
+
+/* Check that a btree block's sibling matches what we expect it. */
+STATIC int
+xfs_scrub_btree_block_check_sibling(
+	struct xfs_scrub_btree		*bs,
+	int				level,
+	int				direction,
+	union xfs_btree_ptr		*sibling)
+{
+	struct xfs_btree_cur		*cur = bs->cur;
+	struct xfs_btree_block		*pblock;
+	struct xfs_buf			*pbp;
+	struct xfs_btree_cur		*ncur = NULL;
+	union xfs_btree_ptr		*pp;
+	int				success;
+	int				error;
+
+	error = xfs_btree_dup_cursor(cur, &ncur);
+	if (!xfs_scrub_btree_process_error(bs->sc, cur, level + 1, &error) ||
+	    !ncur)
+		return error;
+
+	/*
+	 * If the pointer is null, we shouldn't be able to move the upper
+	 * level pointer anywhere.
+	 */
+	if (xfs_btree_ptr_is_null(cur, sibling)) {
+		if (direction > 0)
+			error = xfs_btree_increment(ncur, level + 1, &success);
+		else
+			error = xfs_btree_decrement(ncur, level + 1, &success);
+		if (error == 0 && success)
+			xfs_scrub_btree_set_corrupt(bs->sc, cur, level);
+		error = 0;
+		goto out;
+	}
+
+	/* Increment upper level pointer. */
+	if (direction > 0)
+		error = xfs_btree_increment(ncur, level + 1, &success);
+	else
+		error = xfs_btree_decrement(ncur, level + 1, &success);
+	if (!xfs_scrub_btree_process_error(bs->sc, cur, level + 1, &error))
+		goto out;
+	if (!success) {
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, level + 1);
+		goto out;
+	}
+
+	/* Compare upper level pointer to sibling pointer. */
+	pblock = xfs_btree_get_block(ncur, level + 1, &pbp);
+	pp = xfs_btree_ptr_addr(ncur, ncur->bc_ptrs[level + 1], pblock);
+	if (!xfs_scrub_btree_ptr_ok(bs, level + 1, pp))
+		goto out;
+
+	if (xfs_btree_diff_two_ptrs(cur, pp, sibling))
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, level);
+out:
+	xfs_btree_del_cursor(ncur, XFS_BTREE_ERROR);
+	return error;
+}
+
+/* Check the siblings of a btree block. */
+STATIC int
+xfs_scrub_btree_block_check_siblings(
+	struct xfs_scrub_btree		*bs,
+	struct xfs_btree_block		*block)
+{
+	struct xfs_btree_cur		*cur = bs->cur;
+	union xfs_btree_ptr		leftsib;
+	union xfs_btree_ptr		rightsib;
+	int				level;
+	int				error = 0;
+
+	xfs_btree_get_sibling(cur, block, &leftsib, XFS_BB_LEFTSIB);
+	xfs_btree_get_sibling(cur, block, &rightsib, XFS_BB_RIGHTSIB);
+	level = xfs_btree_get_level(block);
+
+	/* Root block should never have siblings. */
+	if (level == cur->bc_nlevels - 1) {
+		if (!xfs_btree_ptr_is_null(cur, &leftsib) ||
+		    !xfs_btree_ptr_is_null(cur, &rightsib))
+			xfs_scrub_btree_set_corrupt(bs->sc, cur, level);
+		goto out;
+	}
+
+	/*
+	 * Does the left & right sibling pointers match the adjacent
+	 * parent level pointers?
+	 * (These function absorbs error codes for us.)
+	 */
+	error = xfs_scrub_btree_block_check_sibling(bs, level, -1, &leftsib);
+	if (error)
+		return error;
+	error = xfs_scrub_btree_block_check_sibling(bs, level, 1, &rightsib);
+	if (error)
+		return error;
+out:
+	return error;
+}
+
+/*
+ * Grab and scrub a btree block given a btree pointer.  Returns block
+ * and buffer pointers (if applicable) if they're ok to use.
+ */
+STATIC int
+xfs_scrub_btree_get_block(
+	struct xfs_scrub_btree		*bs,
+	int				level,
+	union xfs_btree_ptr		*pp,
+	struct xfs_btree_block		**pblock,
+	struct xfs_buf			**pbp)
+{
+	void				*failed_at;
+	int				error;
+
+	*pblock = NULL;
+	*pbp = NULL;
+
+	error = xfs_btree_lookup_get_block(bs->cur, level, pp, pblock);
+	if (!xfs_scrub_btree_process_error(bs->sc, bs->cur, level, &error) ||
+	    !*pblock)
+		return error;
+
+	xfs_btree_get_block(bs->cur, level, pbp);
+	if (bs->cur->bc_flags & XFS_BTREE_LONG_PTRS)
+		failed_at = __xfs_btree_check_lblock(bs->cur, *pblock,
+				level, *pbp);
+	else
+		failed_at = __xfs_btree_check_sblock(bs->cur, *pblock,
+				 level, *pbp);
+	if (failed_at) {
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, level);
+		return 0;
+	}
+
+	/*
+	 * Check the block's siblings; this function absorbs error codes
+	 * for us.
+	 */
+	return xfs_scrub_btree_block_check_siblings(bs, *pblock);
+}
+
+/*
+ * Check that the low and high keys of this block match the keys stored
+ * in the parent block.
+ */
+STATIC void
+xfs_scrub_btree_block_keys(
+	struct xfs_scrub_btree		*bs,
+	int				level,
+	struct xfs_btree_block		*block)
+{
+	union xfs_btree_key		block_keys;
+	struct xfs_btree_cur		*cur = bs->cur;
+	union xfs_btree_key		*high_bk;
+	union xfs_btree_key		*parent_keys;
+	union xfs_btree_key		*high_pk;
+	struct xfs_btree_block		*parent_block;
+	struct xfs_buf			*bp;
+
+	if (level >= cur->bc_nlevels - 1)
+		return;
+
+	/* Calculate the keys for this block. */
+	xfs_btree_get_keys(cur, block, &block_keys);
+
+	/* Obtain the parent's copy of the keys for this block. */
+	parent_block = xfs_btree_get_block(cur, level + 1, &bp);
+	parent_keys = xfs_btree_key_addr(cur, cur->bc_ptrs[level + 1],
+			parent_block);
+
+	if (cur->bc_ops->diff_two_keys(cur, &block_keys, parent_keys) != 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, 1);
+
+	if (!(cur->bc_flags & XFS_BTREE_OVERLAPPING))
+		return;
+
+	/* Get high keys */
+	high_bk = xfs_btree_high_key_from_key(cur, &block_keys);
+	high_pk = xfs_btree_high_key_addr(cur, cur->bc_ptrs[level + 1],
+			parent_block);
+
+	if (cur->bc_ops->diff_two_keys(cur, high_bk, high_pk) != 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, cur, 1);
+}
+
+/*
+ * Visit all nodes and leaves of a btree.  Check that all pointers and
+ * records are in order, that the keys reflect the records, and use a callback
+ * so that the caller can verify individual records.
+ */
+int
+xfs_scrub_btree(
+	struct xfs_scrub_context	*sc,
+	struct xfs_btree_cur		*cur,
+	xfs_scrub_btree_rec_fn		scrub_fn,
+	struct xfs_owner_info		*oinfo,
+	void				*private)
+{
+	struct xfs_scrub_btree		bs = { NULL };
+	union xfs_btree_ptr		ptr;
+	union xfs_btree_ptr		*pp;
+	union xfs_btree_rec		*recp;
+	struct xfs_btree_block		*block;
+	int				level;
+	struct xfs_buf			*bp;
+	int				i;
+	int				error = 0;
+
+	/* Initialize scrub state */
+	bs.cur = cur;
+	bs.scrub_rec = scrub_fn;
+	bs.oinfo = oinfo;
+	bs.firstrec = true;
+	bs.private = private;
+	bs.sc = sc;
+	for (i = 0; i < XFS_BTREE_MAXLEVELS; i++)
+		bs.firstkey[i] = true;
+	INIT_LIST_HEAD(&bs.to_check);
+
+	/* Don't try to check a tree with a height we can't handle. */
+	if (cur->bc_nlevels > XFS_BTREE_MAXLEVELS) {
+		xfs_scrub_btree_set_corrupt(sc, cur, 0);
+		goto out;
+	}
+
+	/*
+	 * Load the root of the btree.  The helper function absorbs
+	 * error codes for us.
+	 */
+	level = cur->bc_nlevels - 1;
+	cur->bc_ops->init_ptr_from_cur(cur, &ptr);
+	if (!xfs_scrub_btree_ptr_ok(&bs, cur->bc_nlevels, &ptr))
+		goto out;
+	error = xfs_scrub_btree_get_block(&bs, level, &ptr, &block, &bp);
+	if (error || !block)
+		goto out;
+
+	cur->bc_ptrs[level] = 1;
+
+	while (level < cur->bc_nlevels) {
+		block = xfs_btree_get_block(cur, level, &bp);
+
+		if (level == 0) {
+			/* End of leaf, pop back towards the root. */
+			if (cur->bc_ptrs[level] >
+			    be16_to_cpu(block->bb_numrecs)) {
+				xfs_scrub_btree_block_keys(&bs, level, block);
+				if (level < cur->bc_nlevels - 1)
+					cur->bc_ptrs[level + 1]++;
+				level++;
+				continue;
+			}
+
+			/* Records in order for scrub? */
+			xfs_scrub_btree_rec(&bs);
+
+			/* Call out to the record checker. */
+			recp = xfs_btree_rec_addr(cur, cur->bc_ptrs[0], block);
+			error = bs.scrub_rec(&bs, recp);
+			if (error)
+				break;
+			if (xfs_scrub_should_terminate(sc, &error) ||
+			    (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
+				break;
+
+			cur->bc_ptrs[level]++;
+			continue;
+		}
+
+		/* End of node, pop back towards the root. */
+		if (cur->bc_ptrs[level] > be16_to_cpu(block->bb_numrecs)) {
+			xfs_scrub_btree_block_keys(&bs, level, block);
+			if (level < cur->bc_nlevels - 1)
+				cur->bc_ptrs[level + 1]++;
+			level++;
+			continue;
+		}
+
+		/* Keys in order for scrub? */
+		xfs_scrub_btree_key(&bs, level);
+
+		/* Drill another level deeper. */
+		pp = xfs_btree_ptr_addr(cur, cur->bc_ptrs[level], block);
+		if (!xfs_scrub_btree_ptr_ok(&bs, level, pp)) {
+			cur->bc_ptrs[level]++;
+			continue;
+		}
+		level--;
+		error = xfs_scrub_btree_get_block(&bs, level, pp, &block, &bp);
+		if (error || !block)
+			goto out;
+
+		cur->bc_ptrs[level] = 1;
+	}
+
+out:
+	return error;
+}
diff --git a/fs/xfs/scrub/btree.h b/fs/xfs/scrub/btree.h
new file mode 100644
index 000000000000..4de825a626d1
--- /dev/null
+++ b/fs/xfs/scrub/btree.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __XFS_SCRUB_BTREE_H__
+#define __XFS_SCRUB_BTREE_H__
+
+/* btree scrub */
+
+/* Check for btree operation errors. */
+bool xfs_scrub_btree_process_error(struct xfs_scrub_context *sc,
+		struct xfs_btree_cur *cur, int level, int *error);
+
+/* Check for btree corruption. */
+void xfs_scrub_btree_set_corrupt(struct xfs_scrub_context *sc,
+		struct xfs_btree_cur *cur, int level);
+
+struct xfs_scrub_btree;
+typedef int (*xfs_scrub_btree_rec_fn)(
+	struct xfs_scrub_btree	*bs,
+	union xfs_btree_rec	*rec);
+
+struct xfs_scrub_btree {
+	/* caller-provided scrub state */
+	struct xfs_scrub_context	*sc;
+	struct xfs_btree_cur		*cur;
+	xfs_scrub_btree_rec_fn		scrub_rec;
+	struct xfs_owner_info		*oinfo;
+	void				*private;
+
+	/* internal scrub state */
+	union xfs_btree_rec		lastrec;
+	bool				firstrec;
+	union xfs_btree_key		lastkey[XFS_BTREE_MAXLEVELS];
+	bool				firstkey[XFS_BTREE_MAXLEVELS];
+	struct list_head		to_check;
+};
+int xfs_scrub_btree(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		    xfs_scrub_btree_rec_fn scrub_fn,
+		    struct xfs_owner_info *oinfo, void *private);
+
+#endif /* __XFS_SCRUB_BTREE_H__ */
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
new file mode 100644
index 000000000000..ac95fe911d96
--- /dev/null
+++ b/fs/xfs/scrub/common.c
@@ -0,0 +1,574 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_icache.h"
+#include "xfs_itable.h"
+#include "xfs_alloc.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_refcount.h"
+#include "xfs_refcount_btree.h"
+#include "xfs_rmap.h"
+#include "xfs_rmap_btree.h"
+#include "xfs_log.h"
+#include "xfs_trans_priv.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+#include "scrub/btree.h"
+
+/* Common code for the metadata scrubbers. */
+
+/*
+ * Handling operational errors.
+ *
+ * The *_process_error() family of functions are used to process error return
+ * codes from functions called as part of a scrub operation.
+ *
+ * If there's no error, we return true to tell the caller that it's ok
+ * to move on to the next check in its list.
+ *
+ * For non-verifier errors (e.g. ENOMEM) we return false to tell the
+ * caller that something bad happened, and we preserve *error so that
+ * the caller can return the *error up the stack to userspace.
+ *
+ * Verifier errors (EFSBADCRC/EFSCORRUPTED) are recorded by setting
+ * OFLAG_CORRUPT in sm_flags and the *error is cleared.  In other words,
+ * we track verifier errors (and failed scrub checks) via OFLAG_CORRUPT,
+ * not via return codes.  We return false to tell the caller that
+ * something bad happened.  Since the error has been cleared, the caller
+ * will (presumably) return that zero and scrubbing will move on to
+ * whatever's next.
+ *
+ * ftrace can be used to record the precise metadata location and the
+ * approximate code location of the failed operation.
+ */
+
+/* Check for operational errors. */
+bool
+xfs_scrub_process_error(
+	struct xfs_scrub_context	*sc,
+	xfs_agnumber_t			agno,
+	xfs_agblock_t			bno,
+	int				*error)
+{
+	switch (*error) {
+	case 0:
+		return true;
+	case -EDEADLOCK:
+		/* Used to restart an op with deadlock avoidance. */
+		trace_xfs_scrub_deadlock_retry(sc->ip, sc->sm, *error);
+		break;
+	case -EFSBADCRC:
+	case -EFSCORRUPTED:
+		/* Note the badness but don't abort. */
+		sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+		*error = 0;
+		/* fall through */
+	default:
+		trace_xfs_scrub_op_error(sc, agno, bno, *error,
+				__return_address);
+		break;
+	}
+	return false;
+}
+
+/* Check for operational errors for a file offset. */
+bool
+xfs_scrub_fblock_process_error(
+	struct xfs_scrub_context	*sc,
+	int				whichfork,
+	xfs_fileoff_t			offset,
+	int				*error)
+{
+	switch (*error) {
+	case 0:
+		return true;
+	case -EDEADLOCK:
+		/* Used to restart an op with deadlock avoidance. */
+		trace_xfs_scrub_deadlock_retry(sc->ip, sc->sm, *error);
+		break;
+	case -EFSBADCRC:
+	case -EFSCORRUPTED:
+		/* Note the badness but don't abort. */
+		sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+		*error = 0;
+		/* fall through */
+	default:
+		trace_xfs_scrub_file_op_error(sc, whichfork, offset, *error,
+				__return_address);
+		break;
+	}
+	return false;
+}
+
+/*
+ * Handling scrub corruption/optimization/warning checks.
+ *
+ * The *_set_{corrupt,preen,warning}() family of functions are used to
+ * record the presence of metadata that is incorrect (corrupt), could be
+ * optimized somehow (preen), or should be flagged for administrative
+ * review but is not incorrect (warn).
+ *
+ * ftrace can be used to record the precise metadata location and
+ * approximate code location of the failed check.
+ */
+
+/* Record a block which could be optimized. */
+void
+xfs_scrub_block_set_preen(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_PREEN;
+	trace_xfs_scrub_block_preen(sc, bp->b_bn, __return_address);
+}
+
+/*
+ * Record an inode which could be optimized.  The trace data will
+ * include the block given by bp if bp is given; otherwise it will use
+ * the block location of the inode record itself.
+ */
+void
+xfs_scrub_ino_set_preen(
+	struct xfs_scrub_context	*sc,
+	xfs_ino_t			ino,
+	struct xfs_buf			*bp)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_PREEN;
+	trace_xfs_scrub_ino_preen(sc, ino, bp ? bp->b_bn : 0,
+			__return_address);
+}
+
+/* Record a corrupt block. */
+void
+xfs_scrub_block_set_corrupt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+	trace_xfs_scrub_block_error(sc, bp->b_bn, __return_address);
+}
+
+/*
+ * Record a corrupt inode.  The trace data will include the block given
+ * by bp if bp is given; otherwise it will use the block location of the
+ * inode record itself.
+ */
+void
+xfs_scrub_ino_set_corrupt(
+	struct xfs_scrub_context	*sc,
+	xfs_ino_t			ino,
+	struct xfs_buf			*bp)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+	trace_xfs_scrub_ino_error(sc, ino, bp ? bp->b_bn : 0, __return_address);
+}
+
+/* Record corruption in a block indexed by a file fork. */
+void
+xfs_scrub_fblock_set_corrupt(
+	struct xfs_scrub_context	*sc,
+	int				whichfork,
+	xfs_fileoff_t			offset)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+	trace_xfs_scrub_fblock_error(sc, whichfork, offset, __return_address);
+}
+
+/*
+ * Warn about inodes that need administrative review but is not
+ * incorrect.
+ */
+void
+xfs_scrub_ino_set_warning(
+	struct xfs_scrub_context	*sc,
+	xfs_ino_t			ino,
+	struct xfs_buf			*bp)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_WARNING;
+	trace_xfs_scrub_ino_warning(sc, ino, bp ? bp->b_bn : 0,
+			__return_address);
+}
+
+/* Warn about a block indexed by a file fork that needs review. */
+void
+xfs_scrub_fblock_set_warning(
+	struct xfs_scrub_context	*sc,
+	int				whichfork,
+	xfs_fileoff_t			offset)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_WARNING;
+	trace_xfs_scrub_fblock_warning(sc, whichfork, offset, __return_address);
+}
+
+/* Signal an incomplete scrub. */
+void
+xfs_scrub_set_incomplete(
+	struct xfs_scrub_context	*sc)
+{
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_INCOMPLETE;
+	trace_xfs_scrub_incomplete(sc, __return_address);
+}
+
+/*
+ * AG scrubbing
+ *
+ * These helpers facilitate locking an allocation group's header
+ * buffers, setting up cursors for all btrees that are present, and
+ * cleaning everything up once we're through.
+ */
+
+/* Decide if we want to return an AG header read failure. */
+static inline bool
+want_ag_read_header_failure(
+	struct xfs_scrub_context	*sc,
+	unsigned int			type)
+{
+	/* Return all AG header read failures when scanning btrees. */
+	if (sc->sm->sm_type != XFS_SCRUB_TYPE_AGF &&
+	    sc->sm->sm_type != XFS_SCRUB_TYPE_AGFL &&
+	    sc->sm->sm_type != XFS_SCRUB_TYPE_AGI)
+		return true;
+	/*
+	 * If we're scanning a given type of AG header, we only want to
+	 * see read failures from that specific header.  We'd like the
+	 * other headers to cross-check them, but this isn't required.
+	 */
+	if (sc->sm->sm_type == type)
+		return true;
+	return false;
+}
+
+/*
+ * Grab all the headers for an AG.
+ *
+ * The headers should be released by xfs_scrub_ag_free, but as a fail
+ * safe we attach all the buffers we grab to the scrub transaction so
+ * they'll all be freed when we cancel it.
+ */
+int
+xfs_scrub_ag_read_headers(
+	struct xfs_scrub_context	*sc,
+	xfs_agnumber_t			agno,
+	struct xfs_buf			**agi,
+	struct xfs_buf			**agf,
+	struct xfs_buf			**agfl)
+{
+	struct xfs_mount		*mp = sc->mp;
+	int				error;
+
+	error = xfs_ialloc_read_agi(mp, sc->tp, agno, agi);
+	if (error && want_ag_read_header_failure(sc, XFS_SCRUB_TYPE_AGI))
+		goto out;
+
+	error = xfs_alloc_read_agf(mp, sc->tp, agno, 0, agf);
+	if (error && want_ag_read_header_failure(sc, XFS_SCRUB_TYPE_AGF))
+		goto out;
+
+	error = xfs_alloc_read_agfl(mp, sc->tp, agno, agfl);
+	if (error && want_ag_read_header_failure(sc, XFS_SCRUB_TYPE_AGFL))
+		goto out;
+
+out:
+	return error;
+}
+
+/* Release all the AG btree cursors. */
+void
+xfs_scrub_ag_btcur_free(
+	struct xfs_scrub_ag		*sa)
+{
+	if (sa->refc_cur)
+		xfs_btree_del_cursor(sa->refc_cur, XFS_BTREE_ERROR);
+	if (sa->rmap_cur)
+		xfs_btree_del_cursor(sa->rmap_cur, XFS_BTREE_ERROR);
+	if (sa->fino_cur)
+		xfs_btree_del_cursor(sa->fino_cur, XFS_BTREE_ERROR);
+	if (sa->ino_cur)
+		xfs_btree_del_cursor(sa->ino_cur, XFS_BTREE_ERROR);
+	if (sa->cnt_cur)
+		xfs_btree_del_cursor(sa->cnt_cur, XFS_BTREE_ERROR);
+	if (sa->bno_cur)
+		xfs_btree_del_cursor(sa->bno_cur, XFS_BTREE_ERROR);
+
+	sa->refc_cur = NULL;
+	sa->rmap_cur = NULL;
+	sa->fino_cur = NULL;
+	sa->ino_cur = NULL;
+	sa->bno_cur = NULL;
+	sa->cnt_cur = NULL;
+}
+
+/* Initialize all the btree cursors for an AG. */
+int
+xfs_scrub_ag_btcur_init(
+	struct xfs_scrub_context	*sc,
+	struct xfs_scrub_ag		*sa)
+{
+	struct xfs_mount		*mp = sc->mp;
+	xfs_agnumber_t			agno = sa->agno;
+
+	if (sa->agf_bp) {
+		/* Set up a bnobt cursor for cross-referencing. */
+		sa->bno_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
+				agno, XFS_BTNUM_BNO);
+		if (!sa->bno_cur)
+			goto err;
+
+		/* Set up a cntbt cursor for cross-referencing. */
+		sa->cnt_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
+				agno, XFS_BTNUM_CNT);
+		if (!sa->cnt_cur)
+			goto err;
+	}
+
+	/* Set up a inobt cursor for cross-referencing. */
+	if (sa->agi_bp) {
+		sa->ino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
+					agno, XFS_BTNUM_INO);
+		if (!sa->ino_cur)
+			goto err;
+	}
+
+	/* Set up a finobt cursor for cross-referencing. */
+	if (sa->agi_bp && xfs_sb_version_hasfinobt(&mp->m_sb)) {
+		sa->fino_cur = xfs_inobt_init_cursor(mp, sc->tp, sa->agi_bp,
+				agno, XFS_BTNUM_FINO);
+		if (!sa->fino_cur)
+			goto err;
+	}
+
+	/* Set up a rmapbt cursor for cross-referencing. */
+	if (sa->agf_bp && xfs_sb_version_hasrmapbt(&mp->m_sb)) {
+		sa->rmap_cur = xfs_rmapbt_init_cursor(mp, sc->tp, sa->agf_bp,
+				agno);
+		if (!sa->rmap_cur)
+			goto err;
+	}
+
+	/* Set up a refcountbt cursor for cross-referencing. */
+	if (sa->agf_bp && xfs_sb_version_hasreflink(&mp->m_sb)) {
+		sa->refc_cur = xfs_refcountbt_init_cursor(mp, sc->tp,
+				sa->agf_bp, agno, NULL);
+		if (!sa->refc_cur)
+			goto err;
+	}
+
+	return 0;
+err:
+	return -ENOMEM;
+}
+
+/* Release the AG header context and btree cursors. */
+void
+xfs_scrub_ag_free(
+	struct xfs_scrub_context	*sc,
+	struct xfs_scrub_ag		*sa)
+{
+	xfs_scrub_ag_btcur_free(sa);
+	if (sa->agfl_bp) {
+		xfs_trans_brelse(sc->tp, sa->agfl_bp);
+		sa->agfl_bp = NULL;
+	}
+	if (sa->agf_bp) {
+		xfs_trans_brelse(sc->tp, sa->agf_bp);
+		sa->agf_bp = NULL;
+	}
+	if (sa->agi_bp) {
+		xfs_trans_brelse(sc->tp, sa->agi_bp);
+		sa->agi_bp = NULL;
+	}
+	sa->agno = NULLAGNUMBER;
+}
+
+/*
+ * For scrub, grab the AGI and the AGF headers, in that order.  Locking
+ * order requires us to get the AGI before the AGF.  We use the
+ * transaction to avoid deadlocking on crosslinked metadata buffers;
+ * either the caller passes one in (bmap scrub) or we have to create a
+ * transaction ourselves.
+ */
+int
+xfs_scrub_ag_init(
+	struct xfs_scrub_context	*sc,
+	xfs_agnumber_t			agno,
+	struct xfs_scrub_ag		*sa)
+{
+	int				error;
+
+	sa->agno = agno;
+	error = xfs_scrub_ag_read_headers(sc, agno, &sa->agi_bp,
+			&sa->agf_bp, &sa->agfl_bp);
+	if (error)
+		return error;
+
+	return xfs_scrub_ag_btcur_init(sc, sa);
+}
+
+/* Per-scrubber setup functions */
+
+/* Set us up with a transaction and an empty context. */
+int
+xfs_scrub_setup_fs(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_trans_alloc(sc->sm, sc->mp, &sc->tp);
+}
+
+/* Set us up with AG headers and btree cursors. */
+int
+xfs_scrub_setup_ag_btree(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip,
+	bool				force_log)
+{
+	struct xfs_mount		*mp = sc->mp;
+	int				error;
+
+	/*
+	 * If the caller asks us to checkpont the log, do so.  This
+	 * expensive operation should be performed infrequently and only
+	 * as a last resort.  Any caller that sets force_log should
+	 * document why they need to do so.
+	 */
+	if (force_log) {
+		error = xfs_scrub_checkpoint_log(mp);
+		if (error)
+			return error;
+	}
+
+	error = xfs_scrub_setup_ag_header(sc, ip);
+	if (error)
+		return error;
+
+	return xfs_scrub_ag_init(sc, sc->sm->sm_agno, &sc->sa);
+}
+
+/* Push everything out of the log onto disk. */
+int
+xfs_scrub_checkpoint_log(
+	struct xfs_mount	*mp)
+{
+	int			error;
+
+	error = _xfs_log_force(mp, XFS_LOG_SYNC, NULL);
+	if (error)
+		return error;
+	xfs_ail_push_all_sync(mp->m_ail);
+	return 0;
+}
+
+/*
+ * Given an inode and the scrub control structure, grab either the
+ * inode referenced in the control structure or the inode passed in.
+ * The inode is not locked.
+ */
+int
+xfs_scrub_get_inode(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip_in)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_inode		*ip = NULL;
+	int				error;
+
+	/*
+	 * If userspace passed us an AG number or a generation number
+	 * without an inode number, they haven't got a clue so bail out
+	 * immediately.
+	 */
+	if (sc->sm->sm_agno || (sc->sm->sm_gen && !sc->sm->sm_ino))
+		return -EINVAL;
+
+	/* We want to scan the inode we already had opened. */
+	if (sc->sm->sm_ino == 0 || sc->sm->sm_ino == ip_in->i_ino) {
+		sc->ip = ip_in;
+		return 0;
+	}
+
+	/* Look up the inode, see if the generation number matches. */
+	if (xfs_internal_inum(mp, sc->sm->sm_ino))
+		return -ENOENT;
+	error = xfs_iget(mp, NULL, sc->sm->sm_ino,
+			XFS_IGET_UNTRUSTED | XFS_IGET_DONTCACHE, 0, &ip);
+	if (error == -ENOENT || error == -EINVAL) {
+		/* inode doesn't exist... */
+		return -ENOENT;
+	} else if (error) {
+		trace_xfs_scrub_op_error(sc,
+				XFS_INO_TO_AGNO(mp, sc->sm->sm_ino),
+				XFS_INO_TO_AGBNO(mp, sc->sm->sm_ino),
+				error, __return_address);
+		return error;
+	}
+	if (VFS_I(ip)->i_generation != sc->sm->sm_gen) {
+		iput(VFS_I(ip));
+		return -ENOENT;
+	}
+
+	sc->ip = ip;
+	return 0;
+}
+
+/* Set us up to scrub a file's contents. */
+int
+xfs_scrub_setup_inode_contents(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip,
+	unsigned int			resblks)
+{
+	struct xfs_mount		*mp = sc->mp;
+	int				error;
+
+	error = xfs_scrub_get_inode(sc, ip);
+	if (error)
+		return error;
+
+	/* Got the inode, lock it and we're ready to go. */
+	sc->ilock_flags = XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL;
+	xfs_ilock(sc->ip, sc->ilock_flags);
+	error = xfs_scrub_trans_alloc(sc->sm, mp, &sc->tp);
+	if (error)
+		goto out;
+	sc->ilock_flags |= XFS_ILOCK_EXCL;
+	xfs_ilock(sc->ip, XFS_ILOCK_EXCL);
+
+out:
+	/* scrub teardown will unlock and release the inode for us */
+	return error;
+}
diff --git a/fs/xfs/scrub/common.h b/fs/xfs/scrub/common.h
new file mode 100644
index 000000000000..5c043855570e
--- /dev/null
+++ b/fs/xfs/scrub/common.h
@@ -0,0 +1,144 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __XFS_SCRUB_COMMON_H__
+#define __XFS_SCRUB_COMMON_H__
+
+/*
+ * We /could/ terminate a scrub/repair operation early.  If we're not
+ * in a good place to continue (fatal signal, etc.) then bail out.
+ * Note that we're careful not to make any judgements about *error.
+ */
+static inline bool
+xfs_scrub_should_terminate(
+	struct xfs_scrub_context	*sc,
+	int				*error)
+{
+	if (fatal_signal_pending(current)) {
+		if (*error == 0)
+			*error = -EAGAIN;
+		return true;
+	}
+	return false;
+}
+
+/*
+ * Grab an empty transaction so that we can re-grab locked buffers if
+ * one of our btrees turns out to be cyclic.
+ */
+static inline int
+xfs_scrub_trans_alloc(
+	struct xfs_scrub_metadata	*sm,
+	struct xfs_mount		*mp,
+	struct xfs_trans		**tpp)
+{
+	return xfs_trans_alloc_empty(mp, tpp);
+}
+
+bool xfs_scrub_process_error(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
+		xfs_agblock_t bno, int *error);
+bool xfs_scrub_fblock_process_error(struct xfs_scrub_context *sc, int whichfork,
+		xfs_fileoff_t offset, int *error);
+
+void xfs_scrub_block_set_preen(struct xfs_scrub_context *sc,
+		struct xfs_buf *bp);
+void xfs_scrub_ino_set_preen(struct xfs_scrub_context *sc, xfs_ino_t ino,
+		struct xfs_buf *bp);
+
+void xfs_scrub_block_set_corrupt(struct xfs_scrub_context *sc,
+		struct xfs_buf *bp);
+void xfs_scrub_ino_set_corrupt(struct xfs_scrub_context *sc, xfs_ino_t ino,
+		struct xfs_buf *bp);
+void xfs_scrub_fblock_set_corrupt(struct xfs_scrub_context *sc, int whichfork,
+		xfs_fileoff_t offset);
+
+void xfs_scrub_ino_set_warning(struct xfs_scrub_context *sc, xfs_ino_t ino,
+		struct xfs_buf *bp);
+void xfs_scrub_fblock_set_warning(struct xfs_scrub_context *sc, int whichfork,
+		xfs_fileoff_t offset);
+
+void xfs_scrub_set_incomplete(struct xfs_scrub_context *sc);
+int xfs_scrub_checkpoint_log(struct xfs_mount *mp);
+
+/* Setup functions */
+int xfs_scrub_setup_fs(struct xfs_scrub_context *sc, struct xfs_inode *ip);
+int xfs_scrub_setup_ag_header(struct xfs_scrub_context *sc,
+			      struct xfs_inode *ip);
+int xfs_scrub_setup_ag_allocbt(struct xfs_scrub_context *sc,
+			       struct xfs_inode *ip);
+int xfs_scrub_setup_ag_iallocbt(struct xfs_scrub_context *sc,
+				struct xfs_inode *ip);
+int xfs_scrub_setup_ag_rmapbt(struct xfs_scrub_context *sc,
+			      struct xfs_inode *ip);
+int xfs_scrub_setup_ag_refcountbt(struct xfs_scrub_context *sc,
+				  struct xfs_inode *ip);
+int xfs_scrub_setup_inode(struct xfs_scrub_context *sc,
+			  struct xfs_inode *ip);
+int xfs_scrub_setup_inode_bmap(struct xfs_scrub_context *sc,
+			       struct xfs_inode *ip);
+int xfs_scrub_setup_inode_bmap_data(struct xfs_scrub_context *sc,
+				    struct xfs_inode *ip);
+int xfs_scrub_setup_directory(struct xfs_scrub_context *sc,
+			      struct xfs_inode *ip);
+int xfs_scrub_setup_xattr(struct xfs_scrub_context *sc,
+			  struct xfs_inode *ip);
+int xfs_scrub_setup_symlink(struct xfs_scrub_context *sc,
+			    struct xfs_inode *ip);
+int xfs_scrub_setup_parent(struct xfs_scrub_context *sc,
+			   struct xfs_inode *ip);
+#ifdef CONFIG_XFS_RT
+int xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip);
+#else
+static inline int
+xfs_scrub_setup_rt(struct xfs_scrub_context *sc, struct xfs_inode *ip)
+{
+	return -ENOENT;
+}
+#endif
+#ifdef CONFIG_XFS_QUOTA
+int xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip);
+#else
+static inline int
+xfs_scrub_setup_quota(struct xfs_scrub_context *sc, struct xfs_inode *ip)
+{
+	return -ENOENT;
+}
+#endif
+
+void xfs_scrub_ag_free(struct xfs_scrub_context *sc, struct xfs_scrub_ag *sa);
+int xfs_scrub_ag_init(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
+		      struct xfs_scrub_ag *sa);
+int xfs_scrub_ag_read_headers(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
+			      struct xfs_buf **agi, struct xfs_buf **agf,
+			      struct xfs_buf **agfl);
+void xfs_scrub_ag_btcur_free(struct xfs_scrub_ag *sa);
+int xfs_scrub_ag_btcur_init(struct xfs_scrub_context *sc,
+			    struct xfs_scrub_ag *sa);
+int xfs_scrub_walk_agfl(struct xfs_scrub_context *sc,
+			int (*fn)(struct xfs_scrub_context *, xfs_agblock_t bno,
+				  void *),
+			void *priv);
+
+int xfs_scrub_setup_ag_btree(struct xfs_scrub_context *sc,
+			     struct xfs_inode *ip, bool force_log);
+int xfs_scrub_get_inode(struct xfs_scrub_context *sc, struct xfs_inode *ip_in);
+int xfs_scrub_setup_inode_contents(struct xfs_scrub_context *sc,
+				   struct xfs_inode *ip, unsigned int resblks);
+
+#endif	/* __XFS_SCRUB_COMMON_H__ */
diff --git a/fs/xfs/scrub/dabtree.c b/fs/xfs/scrub/dabtree.c
new file mode 100644
index 000000000000..d94edd93cba8
--- /dev/null
+++ b/fs/xfs/scrub/dabtree.c
@@ -0,0 +1,591 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_inode_fork.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2.h"
+#include "xfs_dir2_priv.h"
+#include "xfs_attr_leaf.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+#include "scrub/dabtree.h"
+
+/* Directory/Attribute Btree */
+
+/*
+ * Check for da btree operation errors.  See the section about handling
+ * operational errors in common.c.
+ */
+bool
+xfs_scrub_da_process_error(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	int				*error)
+{
+	struct xfs_scrub_context	*sc = ds->sc;
+
+	if (*error == 0)
+		return true;
+
+	switch (*error) {
+	case -EDEADLOCK:
+		/* Used to restart an op with deadlock avoidance. */
+		trace_xfs_scrub_deadlock_retry(sc->ip, sc->sm, *error);
+		break;
+	case -EFSBADCRC:
+	case -EFSCORRUPTED:
+		/* Note the badness but don't abort. */
+		sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+		*error = 0;
+		/* fall through */
+	default:
+		trace_xfs_scrub_file_op_error(sc, ds->dargs.whichfork,
+				xfs_dir2_da_to_db(ds->dargs.geo,
+					ds->state->path.blk[level].blkno),
+				*error, __return_address);
+		break;
+	}
+	return false;
+}
+
+/*
+ * Check for da btree corruption.  See the section about handling
+ * operational errors in common.c.
+ */
+void
+xfs_scrub_da_set_corrupt(
+	struct xfs_scrub_da_btree	*ds,
+	int				level)
+{
+	struct xfs_scrub_context	*sc = ds->sc;
+
+	sc->sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+
+	trace_xfs_scrub_fblock_error(sc, ds->dargs.whichfork,
+			xfs_dir2_da_to_db(ds->dargs.geo,
+				ds->state->path.blk[level].blkno),
+			__return_address);
+}
+
+/* Find an entry at a certain level in a da btree. */
+STATIC void *
+xfs_scrub_da_btree_entry(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	int				rec)
+{
+	char				*ents;
+	struct xfs_da_state_blk		*blk;
+	void				*baddr;
+
+	/* Dispatch the entry finding function. */
+	blk = &ds->state->path.blk[level];
+	baddr = blk->bp->b_addr;
+	switch (blk->magic) {
+	case XFS_ATTR_LEAF_MAGIC:
+	case XFS_ATTR3_LEAF_MAGIC:
+		ents = (char *)xfs_attr3_leaf_entryp(baddr);
+		return ents + (rec * sizeof(struct xfs_attr_leaf_entry));
+	case XFS_DIR2_LEAFN_MAGIC:
+	case XFS_DIR3_LEAFN_MAGIC:
+		ents = (char *)ds->dargs.dp->d_ops->leaf_ents_p(baddr);
+		return ents + (rec * sizeof(struct xfs_dir2_leaf_entry));
+	case XFS_DIR2_LEAF1_MAGIC:
+	case XFS_DIR3_LEAF1_MAGIC:
+		ents = (char *)ds->dargs.dp->d_ops->leaf_ents_p(baddr);
+		return ents + (rec * sizeof(struct xfs_dir2_leaf_entry));
+	case XFS_DA_NODE_MAGIC:
+	case XFS_DA3_NODE_MAGIC:
+		ents = (char *)ds->dargs.dp->d_ops->node_tree_p(baddr);
+		return ents + (rec * sizeof(struct xfs_da_node_entry));
+	}
+
+	return NULL;
+}
+
+/* Scrub a da btree hash (key). */
+int
+xfs_scrub_da_btree_hash(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	__be32				*hashp)
+{
+	struct xfs_da_state_blk		*blks;
+	struct xfs_da_node_entry	*entry;
+	xfs_dahash_t			hash;
+	xfs_dahash_t			parent_hash;
+
+	/* Is this hash in order? */
+	hash = be32_to_cpu(*hashp);
+	if (hash < ds->hashes[level])
+		xfs_scrub_da_set_corrupt(ds, level);
+	ds->hashes[level] = hash;
+
+	if (level == 0)
+		return 0;
+
+	/* Is this hash no larger than the parent hash? */
+	blks = ds->state->path.blk;
+	entry = xfs_scrub_da_btree_entry(ds, level - 1, blks[level - 1].index);
+	parent_hash = be32_to_cpu(entry->hashval);
+	if (parent_hash < hash)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	return 0;
+}
+
+/*
+ * Check a da btree pointer.  Returns true if it's ok to use this
+ * pointer.
+ */
+STATIC bool
+xfs_scrub_da_btree_ptr_ok(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	xfs_dablk_t			blkno)
+{
+	if (blkno < ds->lowest || (ds->highest != 0 && blkno >= ds->highest)) {
+		xfs_scrub_da_set_corrupt(ds, level);
+		return false;
+	}
+
+	return true;
+}
+
+/*
+ * The da btree scrubber can handle leaf1 blocks as a degenerate
+ * form of leafn blocks.  Since the regular da code doesn't handle
+ * leaf1, we must multiplex the verifiers.
+ */
+static void
+xfs_scrub_da_btree_read_verify(
+	struct xfs_buf		*bp)
+{
+	struct xfs_da_blkinfo	*info = bp->b_addr;
+
+	switch (be16_to_cpu(info->magic)) {
+	case XFS_DIR2_LEAF1_MAGIC:
+	case XFS_DIR3_LEAF1_MAGIC:
+		bp->b_ops = &xfs_dir3_leaf1_buf_ops;
+		bp->b_ops->verify_read(bp);
+		return;
+	default:
+		/*
+		 * xfs_da3_node_buf_ops already know how to handle
+		 * DA*_NODE, ATTR*_LEAF, and DIR*_LEAFN blocks.
+		 */
+		bp->b_ops = &xfs_da3_node_buf_ops;
+		bp->b_ops->verify_read(bp);
+		return;
+	}
+}
+static void
+xfs_scrub_da_btree_write_verify(
+	struct xfs_buf		*bp)
+{
+	struct xfs_da_blkinfo	*info = bp->b_addr;
+
+	switch (be16_to_cpu(info->magic)) {
+	case XFS_DIR2_LEAF1_MAGIC:
+	case XFS_DIR3_LEAF1_MAGIC:
+		bp->b_ops = &xfs_dir3_leaf1_buf_ops;
+		bp->b_ops->verify_write(bp);
+		return;
+	default:
+		/*
+		 * xfs_da3_node_buf_ops already know how to handle
+		 * DA*_NODE, ATTR*_LEAF, and DIR*_LEAFN blocks.
+		 */
+		bp->b_ops = &xfs_da3_node_buf_ops;
+		bp->b_ops->verify_write(bp);
+		return;
+	}
+}
+
+static const struct xfs_buf_ops xfs_scrub_da_btree_buf_ops = {
+	.name = "xfs_scrub_da_btree",
+	.verify_read = xfs_scrub_da_btree_read_verify,
+	.verify_write = xfs_scrub_da_btree_write_verify,
+};
+
+/* Check a block's sibling. */
+STATIC int
+xfs_scrub_da_btree_block_check_sibling(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	int				direction,
+	xfs_dablk_t			sibling)
+{
+	int				retval;
+	int				error;
+
+	memcpy(&ds->state->altpath, &ds->state->path,
+			sizeof(ds->state->altpath));
+
+	/*
+	 * If the pointer is null, we shouldn't be able to move the upper
+	 * level pointer anywhere.
+	 */
+	if (sibling == 0) {
+		error = xfs_da3_path_shift(ds->state, &ds->state->altpath,
+				direction, false, &retval);
+		if (error == 0 && retval == 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+		error = 0;
+		goto out;
+	}
+
+	/* Move the alternate cursor one block in the direction given. */
+	error = xfs_da3_path_shift(ds->state, &ds->state->altpath,
+			direction, false, &retval);
+	if (!xfs_scrub_da_process_error(ds, level, &error))
+		return error;
+	if (retval) {
+		xfs_scrub_da_set_corrupt(ds, level);
+		return error;
+	}
+
+	/* Compare upper level pointer to sibling pointer. */
+	if (ds->state->altpath.blk[level].blkno != sibling)
+		xfs_scrub_da_set_corrupt(ds, level);
+	xfs_trans_brelse(ds->dargs.trans, ds->state->altpath.blk[level].bp);
+out:
+	return error;
+}
+
+/* Check a block's sibling pointers. */
+STATIC int
+xfs_scrub_da_btree_block_check_siblings(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	struct xfs_da_blkinfo		*hdr)
+{
+	xfs_dablk_t			forw;
+	xfs_dablk_t			back;
+	int				error = 0;
+
+	forw = be32_to_cpu(hdr->forw);
+	back = be32_to_cpu(hdr->back);
+
+	/* Top level blocks should not have sibling pointers. */
+	if (level == 0) {
+		if (forw != 0 || back != 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+		return 0;
+	}
+
+	/*
+	 * Check back (left) and forw (right) pointers.  These functions
+	 * absorb error codes for us.
+	 */
+	error = xfs_scrub_da_btree_block_check_sibling(ds, level, 0, back);
+	if (error)
+		goto out;
+	error = xfs_scrub_da_btree_block_check_sibling(ds, level, 1, forw);
+
+out:
+	memset(&ds->state->altpath, 0, sizeof(ds->state->altpath));
+	return error;
+}
+
+/* Load a dir/attribute block from a btree. */
+STATIC int
+xfs_scrub_da_btree_block(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	xfs_dablk_t			blkno)
+{
+	struct xfs_da_state_blk		*blk;
+	struct xfs_da_intnode		*node;
+	struct xfs_da_node_entry	*btree;
+	struct xfs_da3_blkinfo		*hdr3;
+	struct xfs_da_args		*dargs = &ds->dargs;
+	struct xfs_inode		*ip = ds->dargs.dp;
+	xfs_ino_t			owner;
+	int				*pmaxrecs;
+	struct xfs_da3_icnode_hdr	nodehdr;
+	int				error = 0;
+
+	blk = &ds->state->path.blk[level];
+	ds->state->path.active = level + 1;
+
+	/* Release old block. */
+	if (blk->bp) {
+		xfs_trans_brelse(dargs->trans, blk->bp);
+		blk->bp = NULL;
+	}
+
+	/* Check the pointer. */
+	blk->blkno = blkno;
+	if (!xfs_scrub_da_btree_ptr_ok(ds, level, blkno))
+		goto out_nobuf;
+
+	/* Read the buffer. */
+	error = xfs_da_read_buf(dargs->trans, dargs->dp, blk->blkno, -2,
+			&blk->bp, dargs->whichfork,
+			&xfs_scrub_da_btree_buf_ops);
+	if (!xfs_scrub_da_process_error(ds, level, &error))
+		goto out_nobuf;
+
+	/*
+	 * We didn't find a dir btree root block, which means that
+	 * there's no LEAF1/LEAFN tree (at least not where it's supposed
+	 * to be), so jump out now.
+	 */
+	if (ds->dargs.whichfork == XFS_DATA_FORK && level == 0 &&
+			blk->bp == NULL)
+		goto out_nobuf;
+
+	/* It's /not/ ok for attr trees not to have a da btree. */
+	if (blk->bp == NULL) {
+		xfs_scrub_da_set_corrupt(ds, level);
+		goto out_nobuf;
+	}
+
+	hdr3 = blk->bp->b_addr;
+	blk->magic = be16_to_cpu(hdr3->hdr.magic);
+	pmaxrecs = &ds->maxrecs[level];
+
+	/* We only started zeroing the header on v5 filesystems. */
+	if (xfs_sb_version_hascrc(&ds->sc->mp->m_sb) && hdr3->hdr.pad)
+		xfs_scrub_da_set_corrupt(ds, level);
+
+	/* Check the owner. */
+	if (xfs_sb_version_hascrc(&ip->i_mount->m_sb)) {
+		owner = be64_to_cpu(hdr3->owner);
+		if (owner != ip->i_ino)
+			xfs_scrub_da_set_corrupt(ds, level);
+	}
+
+	/* Check the siblings. */
+	error = xfs_scrub_da_btree_block_check_siblings(ds, level, &hdr3->hdr);
+	if (error)
+		goto out;
+
+	/* Interpret the buffer. */
+	switch (blk->magic) {
+	case XFS_ATTR_LEAF_MAGIC:
+	case XFS_ATTR3_LEAF_MAGIC:
+		xfs_trans_buf_set_type(dargs->trans, blk->bp,
+				XFS_BLFT_ATTR_LEAF_BUF);
+		blk->magic = XFS_ATTR_LEAF_MAGIC;
+		blk->hashval = xfs_attr_leaf_lasthash(blk->bp, pmaxrecs);
+		if (ds->tree_level != 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+		break;
+	case XFS_DIR2_LEAFN_MAGIC:
+	case XFS_DIR3_LEAFN_MAGIC:
+		xfs_trans_buf_set_type(dargs->trans, blk->bp,
+				XFS_BLFT_DIR_LEAFN_BUF);
+		blk->magic = XFS_DIR2_LEAFN_MAGIC;
+		blk->hashval = xfs_dir2_leaf_lasthash(ip, blk->bp, pmaxrecs);
+		if (ds->tree_level != 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+		break;
+	case XFS_DIR2_LEAF1_MAGIC:
+	case XFS_DIR3_LEAF1_MAGIC:
+		xfs_trans_buf_set_type(dargs->trans, blk->bp,
+				XFS_BLFT_DIR_LEAF1_BUF);
+		blk->magic = XFS_DIR2_LEAF1_MAGIC;
+		blk->hashval = xfs_dir2_leaf_lasthash(ip, blk->bp, pmaxrecs);
+		if (ds->tree_level != 0)
+			xfs_scrub_da_set_corrupt(ds, level);
+		break;
+	case XFS_DA_NODE_MAGIC:
+	case XFS_DA3_NODE_MAGIC:
+		xfs_trans_buf_set_type(dargs->trans, blk->bp,
+				XFS_BLFT_DA_NODE_BUF);
+		blk->magic = XFS_DA_NODE_MAGIC;
+		node = blk->bp->b_addr;
+		ip->d_ops->node_hdr_from_disk(&nodehdr, node);
+		btree = ip->d_ops->node_tree_p(node);
+		*pmaxrecs = nodehdr.count;
+		blk->hashval = be32_to_cpu(btree[*pmaxrecs - 1].hashval);
+		if (level == 0) {
+			if (nodehdr.level >= XFS_DA_NODE_MAXDEPTH) {
+				xfs_scrub_da_set_corrupt(ds, level);
+				goto out_freebp;
+			}
+			ds->tree_level = nodehdr.level;
+		} else {
+			if (ds->tree_level != nodehdr.level) {
+				xfs_scrub_da_set_corrupt(ds, level);
+				goto out_freebp;
+			}
+		}
+
+		/* XXX: Check hdr3.pad32 once we know how to fix it. */
+		break;
+	default:
+		xfs_scrub_da_set_corrupt(ds, level);
+		goto out_freebp;
+	}
+
+out:
+	return error;
+out_freebp:
+	xfs_trans_brelse(dargs->trans, blk->bp);
+	blk->bp = NULL;
+out_nobuf:
+	blk->blkno = 0;
+	return error;
+}
+
+/* Visit all nodes and leaves of a da btree. */
+int
+xfs_scrub_da_btree(
+	struct xfs_scrub_context	*sc,
+	int				whichfork,
+	xfs_scrub_da_btree_rec_fn	scrub_fn,
+	void				*private)
+{
+	struct xfs_scrub_da_btree	ds = {};
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_da_state_blk		*blks;
+	struct xfs_da_node_entry	*key;
+	void				*rec;
+	xfs_dablk_t			blkno;
+	int				level;
+	int				error;
+
+	/* Skip short format data structures; no btree to scan. */
+	if (XFS_IFORK_FORMAT(sc->ip, whichfork) != XFS_DINODE_FMT_EXTENTS &&
+	    XFS_IFORK_FORMAT(sc->ip, whichfork) != XFS_DINODE_FMT_BTREE)
+		return 0;
+
+	/* Set up initial da state. */
+	ds.dargs.dp = sc->ip;
+	ds.dargs.whichfork = whichfork;
+	ds.dargs.trans = sc->tp;
+	ds.dargs.op_flags = XFS_DA_OP_OKNOENT;
+	ds.state = xfs_da_state_alloc();
+	ds.state->args = &ds.dargs;
+	ds.state->mp = mp;
+	ds.sc = sc;
+	ds.private = private;
+	if (whichfork == XFS_ATTR_FORK) {
+		ds.dargs.geo = mp->m_attr_geo;
+		ds.lowest = 0;
+		ds.highest = 0;
+	} else {
+		ds.dargs.geo = mp->m_dir_geo;
+		ds.lowest = ds.dargs.geo->leafblk;
+		ds.highest = ds.dargs.geo->freeblk;
+	}
+	blkno = ds.lowest;
+	level = 0;
+
+	/* Find the root of the da tree, if present. */
+	blks = ds.state->path.blk;
+	error = xfs_scrub_da_btree_block(&ds, level, blkno);
+	if (error)
+		goto out_state;
+	/*
+	 * We didn't find a block at ds.lowest, which means that there's
+	 * no LEAF1/LEAFN tree (at least not where it's supposed to be),
+	 * so jump out now.
+	 */
+	if (blks[level].bp == NULL)
+		goto out_state;
+
+	blks[level].index = 0;
+	while (level >= 0 && level < XFS_DA_NODE_MAXDEPTH) {
+		/* Handle leaf block. */
+		if (blks[level].magic != XFS_DA_NODE_MAGIC) {
+			/* End of leaf, pop back towards the root. */
+			if (blks[level].index >= ds.maxrecs[level]) {
+				if (level > 0)
+					blks[level - 1].index++;
+				ds.tree_level++;
+				level--;
+				continue;
+			}
+
+			/* Dispatch record scrubbing. */
+			rec = xfs_scrub_da_btree_entry(&ds, level,
+					blks[level].index);
+			error = scrub_fn(&ds, level, rec);
+			if (error)
+				break;
+			if (xfs_scrub_should_terminate(sc, &error) ||
+			    (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
+				break;
+
+			blks[level].index++;
+			continue;
+		}
+
+
+		/* End of node, pop back towards the root. */
+		if (blks[level].index >= ds.maxrecs[level]) {
+			if (level > 0)
+				blks[level - 1].index++;
+			ds.tree_level++;
+			level--;
+			continue;
+		}
+
+		/* Hashes in order for scrub? */
+		key = xfs_scrub_da_btree_entry(&ds, level, blks[level].index);
+		error = xfs_scrub_da_btree_hash(&ds, level, &key->hashval);
+		if (error)
+			goto out;
+
+		/* Drill another level deeper. */
+		blkno = be32_to_cpu(key->before);
+		level++;
+		ds.tree_level--;
+		error = xfs_scrub_da_btree_block(&ds, level, blkno);
+		if (error)
+			goto out;
+		if (blks[level].bp == NULL)
+			goto out;
+
+		blks[level].index = 0;
+	}
+
+out:
+	/* Release all the buffers we're tracking. */
+	for (level = 0; level < XFS_DA_NODE_MAXDEPTH; level++) {
+		if (blks[level].bp == NULL)
+			continue;
+		xfs_trans_brelse(sc->tp, blks[level].bp);
+		blks[level].bp = NULL;
+	}
+
+out_state:
+	xfs_da_state_free(ds.state);
+	return error;
+}
diff --git a/fs/xfs/scrub/dabtree.h b/fs/xfs/scrub/dabtree.h
new file mode 100644
index 000000000000..d31468d68cef
--- /dev/null
+++ b/fs/xfs/scrub/dabtree.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __XFS_SCRUB_DABTREE_H__
+#define __XFS_SCRUB_DABTREE_H__
+
+/* dir/attr btree */
+
+struct xfs_scrub_da_btree {
+	struct xfs_da_args		dargs;
+	xfs_dahash_t			hashes[XFS_DA_NODE_MAXDEPTH];
+	int				maxrecs[XFS_DA_NODE_MAXDEPTH];
+	struct xfs_da_state		*state;
+	struct xfs_scrub_context	*sc;
+	void				*private;
+
+	/*
+	 * Lowest and highest directory block address in which we expect
+	 * to find dir/attr btree node blocks.  For a directory this
+	 * (presumably) means between LEAF_OFFSET and FREE_OFFSET; for
+	 * attributes there is no limit.
+	 */
+	xfs_dablk_t			lowest;
+	xfs_dablk_t			highest;
+
+	int				tree_level;
+};
+
+typedef int (*xfs_scrub_da_btree_rec_fn)(struct xfs_scrub_da_btree *ds,
+		int level, void *rec);
+
+/* Check for da btree operation errors. */
+bool xfs_scrub_da_process_error(struct xfs_scrub_da_btree *ds, int level, int *error);
+
+/* Check for da btree corruption. */
+void xfs_scrub_da_set_corrupt(struct xfs_scrub_da_btree *ds, int level);
+
+int xfs_scrub_da_btree_hash(struct xfs_scrub_da_btree *ds, int level,
+			    __be32 *hashp);
+int xfs_scrub_da_btree(struct xfs_scrub_context *sc, int whichfork,
+		       xfs_scrub_da_btree_rec_fn scrub_fn, void *private);
+
+#endif /* __XFS_SCRUB_DABTREE_H__ */
diff --git a/fs/xfs/scrub/dir.c b/fs/xfs/scrub/dir.c
new file mode 100644
index 000000000000..69e1efdd4019
--- /dev/null
+++ b/fs/xfs/scrub/dir.c
@@ -0,0 +1,816 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_icache.h"
+#include "xfs_itable.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
+#include "xfs_dir2.h"
+#include "xfs_dir2_priv.h"
+#include "xfs_ialloc.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+#include "scrub/dabtree.h"
+
+/* Set us up to scrub directories. */
+int
+xfs_scrub_setup_directory(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_setup_inode_contents(sc, ip, 0);
+}
+
+/* Directories */
+
+/* Scrub a directory entry. */
+
+struct xfs_scrub_dir_ctx {
+	/* VFS fill-directory iterator */
+	struct dir_context		dir_iter;
+
+	struct xfs_scrub_context	*sc;
+};
+
+/* Check that an inode's mode matches a given DT_ type. */
+STATIC int
+xfs_scrub_dir_check_ftype(
+	struct xfs_scrub_dir_ctx	*sdc,
+	xfs_fileoff_t			offset,
+	xfs_ino_t			inum,
+	int				dtype)
+{
+	struct xfs_mount		*mp = sdc->sc->mp;
+	struct xfs_inode		*ip;
+	int				ino_dtype;
+	int				error = 0;
+
+	if (!xfs_sb_version_hasftype(&mp->m_sb)) {
+		if (dtype != DT_UNKNOWN && dtype != DT_DIR)
+			xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
+					offset);
+		goto out;
+	}
+
+	/*
+	 * Grab the inode pointed to by the dirent.  We release the
+	 * inode before we cancel the scrub transaction.  Since we're
+	 * don't know a priori that releasing the inode won't trigger
+	 * eofblocks cleanup (which allocates what would be a nested
+	 * transaction), we can't use DONTCACHE here because DONTCACHE
+	 * inodes can trigger immediate inactive cleanup of the inode.
+	 */
+	error = xfs_iget(mp, sdc->sc->tp, inum, 0, 0, &ip);
+	if (!xfs_scrub_fblock_process_error(sdc->sc, XFS_DATA_FORK, offset,
+			&error))
+		goto out;
+
+	/* Convert mode to the DT_* values that dir_emit uses. */
+	ino_dtype = xfs_dir3_get_dtype(mp,
+			xfs_mode_to_ftype(VFS_I(ip)->i_mode));
+	if (ino_dtype != dtype)
+		xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK, offset);
+	iput(VFS_I(ip));
+out:
+	return error;
+}
+
+/*
+ * Scrub a single directory entry.
+ *
+ * We use the VFS directory iterator (i.e. readdir) to call this
+ * function for every directory entry in a directory.  Once we're here,
+ * we check the inode number to make sure it's sane, then we check that
+ * we can look up this filename.  Finally, we check the ftype.
+ */
+STATIC int
+xfs_scrub_dir_actor(
+	struct dir_context		*dir_iter,
+	const char			*name,
+	int				namelen,
+	loff_t				pos,
+	u64				ino,
+	unsigned			type)
+{
+	struct xfs_mount		*mp;
+	struct xfs_inode		*ip;
+	struct xfs_scrub_dir_ctx	*sdc;
+	struct xfs_name			xname;
+	xfs_ino_t			lookup_ino;
+	xfs_dablk_t			offset;
+	int				error = 0;
+
+	sdc = container_of(dir_iter, struct xfs_scrub_dir_ctx, dir_iter);
+	ip = sdc->sc->ip;
+	mp = ip->i_mount;
+	offset = xfs_dir2_db_to_da(mp->m_dir_geo,
+			xfs_dir2_dataptr_to_db(mp->m_dir_geo, pos));
+
+	/* Does this inode number make sense? */
+	if (!xfs_verify_dir_ino(mp, ino)) {
+		xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK, offset);
+		goto out;
+	}
+
+	if (!strncmp(".", name, namelen)) {
+		/* If this is "." then check that the inum matches the dir. */
+		if (xfs_sb_version_hasftype(&mp->m_sb) && type != DT_DIR)
+			xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
+					offset);
+		if (ino != ip->i_ino)
+			xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
+					offset);
+	} else if (!strncmp("..", name, namelen)) {
+		/*
+		 * If this is ".." in the root inode, check that the inum
+		 * matches this dir.
+		 */
+		if (xfs_sb_version_hasftype(&mp->m_sb) && type != DT_DIR)
+			xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
+					offset);
+		if (ip->i_ino == mp->m_sb.sb_rootino && ino != ip->i_ino)
+			xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK,
+					offset);
+	}
+
+	/* Verify that we can look up this name by hash. */
+	xname.name = name;
+	xname.len = namelen;
+	xname.type = XFS_DIR3_FT_UNKNOWN;
+
+	error = xfs_dir_lookup(sdc->sc->tp, ip, &xname, &lookup_ino, NULL);
+	if (!xfs_scrub_fblock_process_error(sdc->sc, XFS_DATA_FORK, offset,
+			&error))
+		goto fail_xref;
+	if (lookup_ino != ino) {
+		xfs_scrub_fblock_set_corrupt(sdc->sc, XFS_DATA_FORK, offset);
+		goto out;
+	}
+
+	/* Verify the file type.  This function absorbs error codes. */
+	error = xfs_scrub_dir_check_ftype(sdc, offset, lookup_ino, type);
+	if (error)
+		goto out;
+out:
+	return error;
+fail_xref:
+	return error;
+}
+
+/* Scrub a directory btree record. */
+STATIC int
+xfs_scrub_dir_rec(
+	struct xfs_scrub_da_btree	*ds,
+	int				level,
+	void				*rec)
+{
+	struct xfs_mount		*mp = ds->state->mp;
+	struct xfs_dir2_leaf_entry	*ent = rec;
+	struct xfs_inode		*dp = ds->dargs.dp;
+	struct xfs_dir2_data_entry	*dent;
+	struct xfs_buf			*bp;
+	xfs_ino_t			ino;
+	xfs_dablk_t			rec_bno;
+	xfs_dir2_db_t			db;
+	xfs_dir2_data_aoff_t		off;
+	xfs_dir2_dataptr_t		ptr;
+	xfs_dahash_t			calc_hash;
+	xfs_dahash_t			hash;
+	unsigned int			tag;
+	int				error;
+
+	/* Check the hash of the entry. */
+	error = xfs_scrub_da_btree_hash(ds, level, &ent->hashval);
+	if (error)
+		goto out;
+
+	/* Valid hash pointer? */
+	ptr = be32_to_cpu(ent->address);
+	if (ptr == 0)
+		return 0;
+
+	/* Find the directory entry's location. */
+	db = xfs_dir2_dataptr_to_db(mp->m_dir_geo, ptr);
+	off = xfs_dir2_dataptr_to_off(mp->m_dir_geo, ptr);
+	rec_bno = xfs_dir2_db_to_da(mp->m_dir_geo, db);
+
+	if (rec_bno >= mp->m_dir_geo->leafblk) {
+		xfs_scrub_da_set_corrupt(ds, level);
+		goto out;
+	}
+	error = xfs_dir3_data_read(ds->dargs.trans, dp, rec_bno, -2, &bp);
+	if (!xfs_scrub_fblock_process_error(ds->sc, XFS_DATA_FORK, rec_bno,
+			&error))
+		goto out;
+	if (!bp) {
+		xfs_scrub_fblock_set_corrupt(ds->sc, XFS_DATA_FORK, rec_bno);
+		goto out;
+	}
+
+	/* Retrieve the entry, sanity check it, and compare hashes. */
+	dent = (struct xfs_dir2_data_entry *)(((char *)bp->b_addr) + off);
+	ino = be64_to_cpu(dent->inumber);
+	hash = be32_to_cpu(ent->hashval);
+	tag = be16_to_cpup(dp->d_ops->data_entry_tag_p(dent));
+	if (!xfs_verify_dir_ino(mp, ino) || tag != off)
+		xfs_scrub_fblock_set_corrupt(ds->sc, XFS_DATA_FORK, rec_bno);
+	if (dent->namelen == 0) {
+		xfs_scrub_fblock_set_corrupt(ds->sc, XFS_DATA_FORK, rec_bno);
+		goto out_relse;
+	}
+	calc_hash = xfs_da_hashname(dent->name, dent->namelen);
+	if (calc_hash != hash)
+		xfs_scrub_fblock_set_corrupt(ds->sc, XFS_DATA_FORK, rec_bno);
+
+out_relse:
+	xfs_trans_brelse(ds->dargs.trans, bp);
+out:
+	return error;
+}
+
+/*
+ * Is this unused entry either in the bestfree or smaller than all of
+ * them?  We've already checked that the bestfrees are sorted longest to
+ * shortest, and that there aren't any bogus entries.
+ */
+STATIC void
+xfs_scrub_directory_check_free_entry(
+	struct xfs_scrub_context	*sc,
+	xfs_dablk_t			lblk,
+	struct xfs_dir2_data_free	*bf,
+	struct xfs_dir2_data_unused	*dup)
+{
+	struct xfs_dir2_data_free	*dfp;
+	unsigned int			dup_length;
+
+	dup_length = be16_to_cpu(dup->length);
+
+	/* Unused entry is shorter than any of the bestfrees */
+	if (dup_length < be16_to_cpu(bf[XFS_DIR2_DATA_FD_COUNT - 1].length))
+		return;
+
+	for (dfp = &bf[XFS_DIR2_DATA_FD_COUNT - 1]; dfp >= bf; dfp--)
+		if (dup_length == be16_to_cpu(dfp->length))
+			return;
+
+	/* Unused entry should be in the bestfrees but wasn't found. */
+	xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+}
+
+/* Check free space info in a directory data block. */
+STATIC int
+xfs_scrub_directory_data_bestfree(
+	struct xfs_scrub_context	*sc,
+	xfs_dablk_t			lblk,
+	bool				is_block)
+{
+	struct xfs_dir2_data_unused	*dup;
+	struct xfs_dir2_data_free	*dfp;
+	struct xfs_buf			*bp;
+	struct xfs_dir2_data_free	*bf;
+	struct xfs_mount		*mp = sc->mp;
+	const struct xfs_dir_ops	*d_ops;
+	char				*ptr;
+	char				*endptr;
+	u16				tag;
+	unsigned int			nr_bestfrees = 0;
+	unsigned int			nr_frees = 0;
+	unsigned int			smallest_bestfree;
+	int				newlen;
+	int				offset;
+	int				error;
+
+	d_ops = sc->ip->d_ops;
+
+	if (is_block) {
+		/* dir block format */
+		if (lblk != XFS_B_TO_FSBT(mp, XFS_DIR2_DATA_OFFSET))
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+		error = xfs_dir3_block_read(sc->tp, sc->ip, &bp);
+	} else {
+		/* dir data format */
+		error = xfs_dir3_data_read(sc->tp, sc->ip, lblk, -1, &bp);
+	}
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, lblk, &error))
+		goto out;
+
+	/* XXX: Check xfs_dir3_data_hdr.pad is zero once we start setting it. */
+
+	/* Do the bestfrees correspond to actual free space? */
+	bf = d_ops->data_bestfree_p(bp->b_addr);
+	smallest_bestfree = UINT_MAX;
+	for (dfp = &bf[0]; dfp < &bf[XFS_DIR2_DATA_FD_COUNT]; dfp++) {
+		offset = be16_to_cpu(dfp->offset);
+		if (offset == 0)
+			continue;
+		if (offset >= mp->m_dir_geo->blksize) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out_buf;
+		}
+		dup = (struct xfs_dir2_data_unused *)(bp->b_addr + offset);
+		tag = be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup));
+
+		/* bestfree doesn't match the entry it points at? */
+		if (dup->freetag != cpu_to_be16(XFS_DIR2_DATA_FREE_TAG) ||
+		    be16_to_cpu(dup->length) != be16_to_cpu(dfp->length) ||
+		    tag != ((char *)dup - (char *)bp->b_addr)) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out_buf;
+		}
+
+		/* bestfree records should be ordered largest to smallest */
+		if (smallest_bestfree < be16_to_cpu(dfp->length)) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out_buf;
+		}
+
+		smallest_bestfree = be16_to_cpu(dfp->length);
+		nr_bestfrees++;
+	}
+
+	/* Make sure the bestfrees are actually the best free spaces. */
+	ptr = (char *)d_ops->data_entry_p(bp->b_addr);
+	if (is_block) {
+		struct xfs_dir2_block_tail	*btp;
+
+		btp = xfs_dir2_block_tail_p(mp->m_dir_geo, bp->b_addr);
+		endptr = (char *)xfs_dir2_block_leaf_p(btp);
+	} else
+		endptr = (char *)bp->b_addr + BBTOB(bp->b_length);
+
+	/* Iterate the entries, stopping when we hit or go past the end. */
+	while (ptr < endptr) {
+		dup = (struct xfs_dir2_data_unused *)ptr;
+		/* Skip real entries */
+		if (dup->freetag != cpu_to_be16(XFS_DIR2_DATA_FREE_TAG)) {
+			struct xfs_dir2_data_entry	*dep;
+
+			dep = (struct xfs_dir2_data_entry *)ptr;
+			newlen = d_ops->data_entsize(dep->namelen);
+			if (newlen <= 0) {
+				xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
+						lblk);
+				goto out_buf;
+			}
+			ptr += newlen;
+			continue;
+		}
+
+		/* Spot check this free entry */
+		tag = be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup));
+		if (tag != ((char *)dup - (char *)bp->b_addr))
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+
+		/*
+		 * Either this entry is a bestfree or it's smaller than
+		 * any of the bestfrees.
+		 */
+		xfs_scrub_directory_check_free_entry(sc, lblk, bf, dup);
+
+		/* Move on. */
+		newlen = be16_to_cpu(dup->length);
+		if (newlen <= 0) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out_buf;
+		}
+		ptr += newlen;
+		if (ptr <= endptr)
+			nr_frees++;
+	}
+
+	/* We're required to fill all the space. */
+	if (ptr != endptr)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+
+	/* Did we see at least as many free slots as there are bestfrees? */
+	if (nr_frees < nr_bestfrees)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+out_buf:
+	xfs_trans_brelse(sc->tp, bp);
+out:
+	return error;
+}
+
+/*
+ * Does the free space length in the free space index block ($len) match
+ * the longest length in the directory data block's bestfree array?
+ * Assume that we've already checked that the data block's bestfree
+ * array is in order.
+ */
+STATIC void
+xfs_scrub_directory_check_freesp(
+	struct xfs_scrub_context	*sc,
+	xfs_dablk_t			lblk,
+	struct xfs_buf			*dbp,
+	unsigned int			len)
+{
+	struct xfs_dir2_data_free	*dfp;
+
+	dfp = sc->ip->d_ops->data_bestfree_p(dbp->b_addr);
+
+	if (len != be16_to_cpu(dfp->length))
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+
+	if (len > 0 && be16_to_cpu(dfp->offset) == 0)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+}
+
+/* Check free space info in a directory leaf1 block. */
+STATIC int
+xfs_scrub_directory_leaf1_bestfree(
+	struct xfs_scrub_context	*sc,
+	struct xfs_da_args		*args,
+	xfs_dablk_t			lblk)
+{
+	struct xfs_dir3_icleaf_hdr	leafhdr;
+	struct xfs_dir2_leaf_entry	*ents;
+	struct xfs_dir2_leaf_tail	*ltp;
+	struct xfs_dir2_leaf		*leaf;
+	struct xfs_buf			*dbp;
+	struct xfs_buf			*bp;
+	const struct xfs_dir_ops	*d_ops = sc->ip->d_ops;
+	struct xfs_da_geometry		*geo = sc->mp->m_dir_geo;
+	__be16				*bestp;
+	__u16				best;
+	__u32				hash;
+	__u32				lasthash = 0;
+	__u32				bestcount;
+	unsigned int			stale = 0;
+	int				i;
+	int				error;
+
+	/* Read the free space block. */
+	error = xfs_dir3_leaf_read(sc->tp, sc->ip, lblk, -1, &bp);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, lblk, &error))
+		goto out;
+
+	leaf = bp->b_addr;
+	d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
+	ents = d_ops->leaf_ents_p(leaf);
+	ltp = xfs_dir2_leaf_tail_p(geo, leaf);
+	bestcount = be32_to_cpu(ltp->bestcount);
+	bestp = xfs_dir2_leaf_bests_p(ltp);
+
+	if (xfs_sb_version_hascrc(&sc->mp->m_sb)) {
+		struct xfs_dir3_leaf_hdr	*hdr3 = bp->b_addr;
+
+		if (hdr3->pad != cpu_to_be32(0))
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+	}
+
+	/*
+	 * There should be as many bestfree slots as there are dir data
+	 * blocks that can fit under i_size.
+	 */
+	if (bestcount != xfs_dir2_byte_to_db(geo, sc->ip->i_d.di_size)) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+		goto out;
+	}
+
+	/* Is the leaf count even remotely sane? */
+	if (leafhdr.count > d_ops->leaf_max_ents(geo)) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+		goto out;
+	}
+
+	/* Leaves and bests don't overlap in leaf format. */
+	if ((char *)&ents[leafhdr.count] > (char *)bestp) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+		goto out;
+	}
+
+	/* Check hash value order, count stale entries.  */
+	for (i = 0; i < leafhdr.count; i++) {
+		hash = be32_to_cpu(ents[i].hashval);
+		if (i > 0 && lasthash > hash)
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+		lasthash = hash;
+		if (ents[i].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
+			stale++;
+	}
+	if (leafhdr.stale != stale)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+
+	/* Check all the bestfree entries. */
+	for (i = 0; i < bestcount; i++, bestp++) {
+		best = be16_to_cpu(*bestp);
+		if (best == NULLDATAOFF)
+			continue;
+		error = xfs_dir3_data_read(sc->tp, sc->ip,
+				i * args->geo->fsbcount, -1, &dbp);
+		if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, lblk,
+				&error))
+			continue;
+		xfs_scrub_directory_check_freesp(sc, lblk, dbp, best);
+		xfs_trans_brelse(sc->tp, dbp);
+	}
+out:
+	return error;
+}
+
+/* Check free space info in a directory freespace block. */
+STATIC int
+xfs_scrub_directory_free_bestfree(
+	struct xfs_scrub_context	*sc,
+	struct xfs_da_args		*args,
+	xfs_dablk_t			lblk)
+{
+	struct xfs_dir3_icfree_hdr	freehdr;
+	struct xfs_buf			*dbp;
+	struct xfs_buf			*bp;
+	__be16				*bestp;
+	__u16				best;
+	unsigned int			stale = 0;
+	int				i;
+	int				error;
+
+	/* Read the free space block */
+	error = xfs_dir2_free_read(sc->tp, sc->ip, lblk, &bp);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, lblk, &error))
+		goto out;
+
+	if (xfs_sb_version_hascrc(&sc->mp->m_sb)) {
+		struct xfs_dir3_free_hdr	*hdr3 = bp->b_addr;
+
+		if (hdr3->pad != cpu_to_be32(0))
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+	}
+
+	/* Check all the entries. */
+	sc->ip->d_ops->free_hdr_from_disk(&freehdr, bp->b_addr);
+	bestp = sc->ip->d_ops->free_bests_p(bp->b_addr);
+	for (i = 0; i < freehdr.nvalid; i++, bestp++) {
+		best = be16_to_cpu(*bestp);
+		if (best == NULLDATAOFF) {
+			stale++;
+			continue;
+		}
+		error = xfs_dir3_data_read(sc->tp, sc->ip,
+				(freehdr.firstdb + i) * args->geo->fsbcount,
+				-1, &dbp);
+		if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, lblk,
+				&error))
+			continue;
+		xfs_scrub_directory_check_freesp(sc, lblk, dbp, best);
+		xfs_trans_brelse(sc->tp, dbp);
+	}
+
+	if (freehdr.nused + stale != freehdr.nvalid)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+out:
+	return error;
+}
+
+/* Check free space information in directories. */
+STATIC int
+xfs_scrub_directory_blocks(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_bmbt_irec		got;
+	struct xfs_da_args		args;
+	struct xfs_ifork		*ifp;
+	struct xfs_mount		*mp = sc->mp;
+	xfs_fileoff_t			leaf_lblk;
+	xfs_fileoff_t			free_lblk;
+	xfs_fileoff_t			lblk;
+	struct xfs_iext_cursor		icur;
+	xfs_dablk_t			dabno;
+	bool				found;
+	int				is_block = 0;
+	int				error;
+
+	/* Ignore local format directories. */
+	if (sc->ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
+	    sc->ip->i_d.di_format != XFS_DINODE_FMT_BTREE)
+		return 0;
+
+	ifp = XFS_IFORK_PTR(sc->ip, XFS_DATA_FORK);
+	lblk = XFS_B_TO_FSB(mp, XFS_DIR2_DATA_OFFSET);
+	leaf_lblk = XFS_B_TO_FSB(mp, XFS_DIR2_LEAF_OFFSET);
+	free_lblk = XFS_B_TO_FSB(mp, XFS_DIR2_FREE_OFFSET);
+
+	/* Is this a block dir? */
+	args.dp = sc->ip;
+	args.geo = mp->m_dir_geo;
+	args.trans = sc->tp;
+	error = xfs_dir2_isblock(&args, &is_block);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, lblk, &error))
+		goto out;
+
+	/* Iterate all the data extents in the directory... */
+	found = xfs_iext_lookup_extent(sc->ip, ifp, lblk, &icur, &got);
+	while (found) {
+		/* Block directories only have a single block at offset 0. */
+		if (is_block &&
+		    (got.br_startoff > 0 ||
+		     got.br_blockcount != args.geo->fsbcount)) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
+					got.br_startoff);
+			break;
+		}
+
+		/* No more data blocks... */
+		if (got.br_startoff >= leaf_lblk)
+			break;
+
+		/*
+		 * Check each data block's bestfree data.
+		 *
+		 * Iterate all the fsbcount-aligned block offsets in
+		 * this directory.  The directory block reading code is
+		 * smart enough to do its own bmap lookups to handle
+		 * discontiguous directory blocks.  When we're done
+		 * with the extent record, re-query the bmap at the
+		 * next fsbcount-aligned offset to avoid redundant
+		 * block checks.
+		 */
+		for (lblk = roundup((xfs_dablk_t)got.br_startoff,
+				args.geo->fsbcount);
+		     lblk < got.br_startoff + got.br_blockcount;
+		     lblk += args.geo->fsbcount) {
+			error = xfs_scrub_directory_data_bestfree(sc, lblk,
+					is_block);
+			if (error)
+				goto out;
+		}
+		dabno = got.br_startoff + got.br_blockcount;
+		lblk = roundup(dabno, args.geo->fsbcount);
+		found = xfs_iext_lookup_extent(sc->ip, ifp, lblk, &icur, &got);
+	}
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Look for a leaf1 block, which has free info. */
+	if (xfs_iext_lookup_extent(sc->ip, ifp, leaf_lblk, &icur, &got) &&
+	    got.br_startoff == leaf_lblk &&
+	    got.br_blockcount == args.geo->fsbcount &&
+	    !xfs_iext_next_extent(ifp, &icur, &got)) {
+		if (is_block) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out;
+		}
+		error = xfs_scrub_directory_leaf1_bestfree(sc, &args,
+				leaf_lblk);
+		if (error)
+			goto out;
+	}
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Scan for free blocks */
+	lblk = free_lblk;
+	found = xfs_iext_lookup_extent(sc->ip, ifp, lblk, &icur, &got);
+	while (found) {
+		/*
+		 * Dirs can't have blocks mapped above 2^32.
+		 * Single-block dirs shouldn't even be here.
+		 */
+		lblk = got.br_startoff;
+		if (lblk & ~0xFFFFFFFFULL) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out;
+		}
+		if (is_block) {
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, lblk);
+			goto out;
+		}
+
+		/*
+		 * Check each dir free block's bestfree data.
+		 *
+		 * Iterate all the fsbcount-aligned block offsets in
+		 * this directory.  The directory block reading code is
+		 * smart enough to do its own bmap lookups to handle
+		 * discontiguous directory blocks.  When we're done
+		 * with the extent record, re-query the bmap at the
+		 * next fsbcount-aligned offset to avoid redundant
+		 * block checks.
+		 */
+		for (lblk = roundup((xfs_dablk_t)got.br_startoff,
+				args.geo->fsbcount);
+		     lblk < got.br_startoff + got.br_blockcount;
+		     lblk += args.geo->fsbcount) {
+			error = xfs_scrub_directory_free_bestfree(sc, &args,
+					lblk);
+			if (error)
+				goto out;
+		}
+		dabno = got.br_startoff + got.br_blockcount;
+		lblk = roundup(dabno, args.geo->fsbcount);
+		found = xfs_iext_lookup_extent(sc->ip, ifp, lblk, &icur, &got);
+	}
+out:
+	return error;
+}
+
+/* Scrub a whole directory. */
+int
+xfs_scrub_directory(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_scrub_dir_ctx	sdc = {
+		.dir_iter.actor = xfs_scrub_dir_actor,
+		.dir_iter.pos = 0,
+		.sc = sc,
+	};
+	size_t				bufsize;
+	loff_t				oldpos;
+	int				error = 0;
+
+	if (!S_ISDIR(VFS_I(sc->ip)->i_mode))
+		return -ENOENT;
+
+	/* Plausible size? */
+	if (sc->ip->i_d.di_size < xfs_dir2_sf_hdr_size(0)) {
+		xfs_scrub_ino_set_corrupt(sc, sc->ip->i_ino, NULL);
+		goto out;
+	}
+
+	/* Check directory tree structure */
+	error = xfs_scrub_da_btree(sc, XFS_DATA_FORK, xfs_scrub_dir_rec, NULL);
+	if (error)
+		return error;
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		return error;
+
+	/* Check the freespace. */
+	error = xfs_scrub_directory_blocks(sc);
+	if (error)
+		return error;
+
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		return error;
+
+	/*
+	 * Check that every dirent we see can also be looked up by hash.
+	 * Userspace usually asks for a 32k buffer, so we will too.
+	 */
+	bufsize = (size_t)min_t(loff_t, XFS_READDIR_BUFSIZE,
+			sc->ip->i_d.di_size);
+
+	/*
+	 * Look up every name in this directory by hash.
+	 *
+	 * Use the xfs_readdir function to call xfs_scrub_dir_actor on
+	 * every directory entry in this directory.  In _actor, we check
+	 * the name, inode number, and ftype (if applicable) of the
+	 * entry.  xfs_readdir uses the VFS filldir functions to provide
+	 * iteration context.
+	 *
+	 * The VFS grabs a read or write lock via i_rwsem before it reads
+	 * or writes to a directory.  If we've gotten this far we've
+	 * already obtained IOLOCK_EXCL, which (since 4.10) is the same as
+	 * getting a write lock on i_rwsem.  Therefore, it is safe for us
+	 * to drop the ILOCK here in order to reuse the _readdir and
+	 * _dir_lookup routines, which do their own ILOCK locking.
+	 */
+	oldpos = 0;
+	sc->ilock_flags &= ~XFS_ILOCK_EXCL;
+	xfs_iunlock(sc->ip, XFS_ILOCK_EXCL);
+	while (true) {
+		error = xfs_readdir(sc->tp, sc->ip, &sdc.dir_iter, bufsize);
+		if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0,
+				&error))
+			goto out;
+		if (oldpos == sdc.dir_iter.pos)
+			break;
+		oldpos = sdc.dir_iter.pos;
+	}
+
+out:
+	return error;
+}
diff --git a/fs/xfs/scrub/ialloc.c b/fs/xfs/scrub/ialloc.c
new file mode 100644
index 000000000000..496d6f2fbb9e
--- /dev/null
+++ b/fs/xfs/scrub/ialloc.c
@@ -0,0 +1,337 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_icache.h"
+#include "xfs_rmap.h"
+#include "xfs_log.h"
+#include "xfs_trans_priv.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/btree.h"
+#include "scrub/trace.h"
+
+/*
+ * Set us up to scrub inode btrees.
+ * If we detect a discrepancy between the inobt and the inode,
+ * try again after forcing logged inode cores out to disk.
+ */
+int
+xfs_scrub_setup_ag_iallocbt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_setup_ag_btree(sc, ip, sc->try_harder);
+}
+
+/* Inode btree scrubber. */
+
+/* Is this chunk worth checking? */
+STATIC bool
+xfs_scrub_iallocbt_chunk(
+	struct xfs_scrub_btree		*bs,
+	struct xfs_inobt_rec_incore	*irec,
+	xfs_agino_t			agino,
+	xfs_extlen_t			len)
+{
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	xfs_agnumber_t			agno = bs->cur->bc_private.a.agno;
+	xfs_agblock_t			bno;
+
+	bno = XFS_AGINO_TO_AGBNO(mp, agino);
+	if (bno + len <= bno ||
+	    !xfs_verify_agbno(mp, agno, bno) ||
+	    !xfs_verify_agbno(mp, agno, bno + len - 1))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	return true;
+}
+
+/* Count the number of free inodes. */
+static unsigned int
+xfs_scrub_iallocbt_freecount(
+	xfs_inofree_t			freemask)
+{
+	BUILD_BUG_ON(sizeof(freemask) != sizeof(__u64));
+	return hweight64(freemask);
+}
+
+/* Check a particular inode with ir_free. */
+STATIC int
+xfs_scrub_iallocbt_check_cluster_freemask(
+	struct xfs_scrub_btree		*bs,
+	xfs_ino_t			fsino,
+	xfs_agino_t			chunkino,
+	xfs_agino_t			clusterino,
+	struct xfs_inobt_rec_incore	*irec,
+	struct xfs_buf			*bp)
+{
+	struct xfs_dinode		*dip;
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	bool				inode_is_free = false;
+	bool				freemask_ok;
+	bool				inuse;
+	int				error = 0;
+
+	if (xfs_scrub_should_terminate(bs->sc, &error))
+		return error;
+
+	dip = xfs_buf_offset(bp, clusterino * mp->m_sb.sb_inodesize);
+	if (be16_to_cpu(dip->di_magic) != XFS_DINODE_MAGIC ||
+	    (dip->di_version >= 3 &&
+	     be64_to_cpu(dip->di_ino) != fsino + clusterino)) {
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+		goto out;
+	}
+
+	if (irec->ir_free & XFS_INOBT_MASK(chunkino + clusterino))
+		inode_is_free = true;
+	error = xfs_icache_inode_is_allocated(mp, bs->cur->bc_tp,
+			fsino + clusterino, &inuse);
+	if (error == -ENODATA) {
+		/* Not cached, just read the disk buffer */
+		freemask_ok = inode_is_free ^ !!(dip->di_mode);
+		if (!bs->sc->try_harder && !freemask_ok)
+			return -EDEADLOCK;
+	} else if (error < 0) {
+		/*
+		 * Inode is only half assembled, or there was an IO error,
+		 * or the verifier failed, so don't bother trying to check.
+		 * The inode scrubber can deal with this.
+		 */
+		goto out;
+	} else {
+		/* Inode is all there. */
+		freemask_ok = inode_is_free ^ inuse;
+	}
+	if (!freemask_ok)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+out:
+	return 0;
+}
+
+/* Make sure the free mask is consistent with what the inodes think. */
+STATIC int
+xfs_scrub_iallocbt_check_freemask(
+	struct xfs_scrub_btree		*bs,
+	struct xfs_inobt_rec_incore	*irec)
+{
+	struct xfs_owner_info		oinfo;
+	struct xfs_imap			imap;
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	struct xfs_dinode		*dip;
+	struct xfs_buf			*bp;
+	xfs_ino_t			fsino;
+	xfs_agino_t			nr_inodes;
+	xfs_agino_t			agino;
+	xfs_agino_t			chunkino;
+	xfs_agino_t			clusterino;
+	xfs_agblock_t			agbno;
+	int				blks_per_cluster;
+	uint16_t			holemask;
+	uint16_t			ir_holemask;
+	int				error = 0;
+
+	/* Make sure the freemask matches the inode records. */
+	blks_per_cluster = xfs_icluster_size_fsb(mp);
+	nr_inodes = XFS_OFFBNO_TO_AGINO(mp, blks_per_cluster, 0);
+	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INODES);
+
+	for (agino = irec->ir_startino;
+	     agino < irec->ir_startino + XFS_INODES_PER_CHUNK;
+	     agino += blks_per_cluster * mp->m_sb.sb_inopblock) {
+		fsino = XFS_AGINO_TO_INO(mp, bs->cur->bc_private.a.agno, agino);
+		chunkino = agino - irec->ir_startino;
+		agbno = XFS_AGINO_TO_AGBNO(mp, agino);
+
+		/* Compute the holemask mask for this cluster. */
+		for (clusterino = 0, holemask = 0; clusterino < nr_inodes;
+		     clusterino += XFS_INODES_PER_HOLEMASK_BIT)
+			holemask |= XFS_INOBT_MASK((chunkino + clusterino) /
+					XFS_INODES_PER_HOLEMASK_BIT);
+
+		/* The whole cluster must be a hole or not a hole. */
+		ir_holemask = (irec->ir_holemask & holemask);
+		if (ir_holemask != holemask && ir_holemask != 0) {
+			xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+			continue;
+		}
+
+		/* If any part of this is a hole, skip it. */
+		if (ir_holemask)
+			continue;
+
+		/* Grab the inode cluster buffer. */
+		imap.im_blkno = XFS_AGB_TO_DADDR(mp, bs->cur->bc_private.a.agno,
+				agbno);
+		imap.im_len = XFS_FSB_TO_BB(mp, blks_per_cluster);
+		imap.im_boffset = 0;
+
+		error = xfs_imap_to_bp(mp, bs->cur->bc_tp, &imap,
+				&dip, &bp, 0, 0);
+		if (!xfs_scrub_btree_process_error(bs->sc, bs->cur, 0, &error))
+			continue;
+
+		/* Which inodes are free? */
+		for (clusterino = 0; clusterino < nr_inodes; clusterino++) {
+			error = xfs_scrub_iallocbt_check_cluster_freemask(bs,
+					fsino, chunkino, clusterino, irec, bp);
+			if (error) {
+				xfs_trans_brelse(bs->cur->bc_tp, bp);
+				return error;
+			}
+		}
+
+		xfs_trans_brelse(bs->cur->bc_tp, bp);
+	}
+
+	return error;
+}
+
+/* Scrub an inobt/finobt record. */
+STATIC int
+xfs_scrub_iallocbt_rec(
+	struct xfs_scrub_btree		*bs,
+	union xfs_btree_rec		*rec)
+{
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	struct xfs_inobt_rec_incore	irec;
+	uint64_t			holes;
+	xfs_agnumber_t			agno = bs->cur->bc_private.a.agno;
+	xfs_agino_t			agino;
+	xfs_agblock_t			agbno;
+	xfs_extlen_t			len;
+	int				holecount;
+	int				i;
+	int				error = 0;
+	unsigned int			real_freecount;
+	uint16_t			holemask;
+
+	xfs_inobt_btrec_to_irec(mp, rec, &irec);
+
+	if (irec.ir_count > XFS_INODES_PER_CHUNK ||
+	    irec.ir_freecount > XFS_INODES_PER_CHUNK)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	real_freecount = irec.ir_freecount +
+			(XFS_INODES_PER_CHUNK - irec.ir_count);
+	if (real_freecount != xfs_scrub_iallocbt_freecount(irec.ir_free))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	agino = irec.ir_startino;
+	/* Record has to be properly aligned within the AG. */
+	if (!xfs_verify_agino(mp, agno, agino) ||
+	    !xfs_verify_agino(mp, agno, agino + XFS_INODES_PER_CHUNK - 1)) {
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+		goto out;
+	}
+
+	/* Make sure this record is aligned to cluster and inoalignmnt size. */
+	agbno = XFS_AGINO_TO_AGBNO(mp, irec.ir_startino);
+	if ((agbno & (xfs_ialloc_cluster_alignment(mp) - 1)) ||
+	    (agbno & (xfs_icluster_size_fsb(mp) - 1)))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	/* Handle non-sparse inodes */
+	if (!xfs_inobt_issparse(irec.ir_holemask)) {
+		len = XFS_B_TO_FSB(mp,
+				XFS_INODES_PER_CHUNK * mp->m_sb.sb_inodesize);
+		if (irec.ir_count != XFS_INODES_PER_CHUNK)
+			xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+		if (!xfs_scrub_iallocbt_chunk(bs, &irec, agino, len))
+			goto out;
+		goto check_freemask;
+	}
+
+	/* Check each chunk of a sparse inode cluster. */
+	holemask = irec.ir_holemask;
+	holecount = 0;
+	len = XFS_B_TO_FSB(mp,
+			XFS_INODES_PER_HOLEMASK_BIT * mp->m_sb.sb_inodesize);
+	holes = ~xfs_inobt_irec_to_allocmask(&irec);
+	if ((holes & irec.ir_free) != holes ||
+	    irec.ir_freecount > irec.ir_count)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	for (i = 0; i < XFS_INOBT_HOLEMASK_BITS; i++) {
+		if (holemask & 1)
+			holecount += XFS_INODES_PER_HOLEMASK_BIT;
+		else if (!xfs_scrub_iallocbt_chunk(bs, &irec, agino, len))
+			break;
+		holemask >>= 1;
+		agino += XFS_INODES_PER_HOLEMASK_BIT;
+	}
+
+	if (holecount > XFS_INODES_PER_CHUNK ||
+	    holecount + irec.ir_count != XFS_INODES_PER_CHUNK)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+check_freemask:
+	error = xfs_scrub_iallocbt_check_freemask(bs, &irec);
+	if (error)
+		goto out;
+
+out:
+	return error;
+}
+
+/* Scrub the inode btrees for some AG. */
+STATIC int
+xfs_scrub_iallocbt(
+	struct xfs_scrub_context	*sc,
+	xfs_btnum_t			which)
+{
+	struct xfs_btree_cur		*cur;
+	struct xfs_owner_info		oinfo;
+
+	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INOBT);
+	cur = which == XFS_BTNUM_INO ? sc->sa.ino_cur : sc->sa.fino_cur;
+	return xfs_scrub_btree(sc, cur, xfs_scrub_iallocbt_rec, &oinfo, NULL);
+}
+
+int
+xfs_scrub_inobt(
+	struct xfs_scrub_context	*sc)
+{
+	return xfs_scrub_iallocbt(sc, XFS_BTNUM_INO);
+}
+
+int
+xfs_scrub_finobt(
+	struct xfs_scrub_context	*sc)
+{
+	return xfs_scrub_iallocbt(sc, XFS_BTNUM_FINO);
+}
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
new file mode 100644
index 000000000000..637b7a892313
--- /dev/null
+++ b/fs/xfs/scrub/inode.c
@@ -0,0 +1,611 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_icache.h"
+#include "xfs_inode_buf.h"
+#include "xfs_inode_fork.h"
+#include "xfs_ialloc.h"
+#include "xfs_da_format.h"
+#include "xfs_reflink.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+
+/*
+ * Grab total control of the inode metadata.  It doesn't matter here if
+ * the file data is still changing; exclusive access to the metadata is
+ * the goal.
+ */
+int
+xfs_scrub_setup_inode(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	struct xfs_mount		*mp = sc->mp;
+	int				error;
+
+	/*
+	 * Try to get the inode.  If the verifiers fail, we try again
+	 * in raw mode.
+	 */
+	error = xfs_scrub_get_inode(sc, ip);
+	switch (error) {
+	case 0:
+		break;
+	case -EFSCORRUPTED:
+	case -EFSBADCRC:
+		return 0;
+	default:
+		return error;
+	}
+
+	/* Got the inode, lock it and we're ready to go. */
+	sc->ilock_flags = XFS_IOLOCK_EXCL | XFS_MMAPLOCK_EXCL;
+	xfs_ilock(sc->ip, sc->ilock_flags);
+	error = xfs_scrub_trans_alloc(sc->sm, mp, &sc->tp);
+	if (error)
+		goto out;
+	sc->ilock_flags |= XFS_ILOCK_EXCL;
+	xfs_ilock(sc->ip, XFS_ILOCK_EXCL);
+
+out:
+	/* scrub teardown will unlock and release the inode for us */
+	return error;
+}
+
+/* Inode core */
+
+/*
+ * Validate di_extsize hint.
+ *
+ * The rules are documented at xfs_ioctl_setattr_check_extsize().
+ * These functions must be kept in sync with each other.
+ */
+STATIC void
+xfs_scrub_inode_extsize(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp,
+	struct xfs_dinode		*dip,
+	xfs_ino_t			ino,
+	uint16_t			mode,
+	uint16_t			flags)
+{
+	struct xfs_mount		*mp = sc->mp;
+	bool				rt_flag;
+	bool				hint_flag;
+	bool				inherit_flag;
+	uint32_t			extsize;
+	uint32_t			extsize_bytes;
+	uint32_t			blocksize_bytes;
+
+	rt_flag = (flags & XFS_DIFLAG_REALTIME);
+	hint_flag = (flags & XFS_DIFLAG_EXTSIZE);
+	inherit_flag = (flags & XFS_DIFLAG_EXTSZINHERIT);
+	extsize = be32_to_cpu(dip->di_extsize);
+	extsize_bytes = XFS_FSB_TO_B(sc->mp, extsize);
+
+	if (rt_flag)
+		blocksize_bytes = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
+	else
+		blocksize_bytes = mp->m_sb.sb_blocksize;
+
+	if ((hint_flag || inherit_flag) && !(S_ISDIR(mode) || S_ISREG(mode)))
+		goto bad;
+
+	if (hint_flag && !S_ISREG(mode))
+		goto bad;
+
+	if (inherit_flag && !S_ISDIR(mode))
+		goto bad;
+
+	if ((hint_flag || inherit_flag) && extsize == 0)
+		goto bad;
+
+	if (!(hint_flag || inherit_flag) && extsize != 0)
+		goto bad;
+
+	if (extsize_bytes % blocksize_bytes)
+		goto bad;
+
+	if (extsize > MAXEXTLEN)
+		goto bad;
+
+	if (!rt_flag && extsize > mp->m_sb.sb_agblocks / 2)
+		goto bad;
+
+	return;
+bad:
+	xfs_scrub_ino_set_corrupt(sc, ino, bp);
+}
+
+/*
+ * Validate di_cowextsize hint.
+ *
+ * The rules are documented at xfs_ioctl_setattr_check_cowextsize().
+ * These functions must be kept in sync with each other.
+ */
+STATIC void
+xfs_scrub_inode_cowextsize(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp,
+	struct xfs_dinode		*dip,
+	xfs_ino_t			ino,
+	uint16_t			mode,
+	uint16_t			flags,
+	uint64_t			flags2)
+{
+	struct xfs_mount		*mp = sc->mp;
+	bool				rt_flag;
+	bool				hint_flag;
+	uint32_t			extsize;
+	uint32_t			extsize_bytes;
+
+	rt_flag = (flags & XFS_DIFLAG_REALTIME);
+	hint_flag = (flags2 & XFS_DIFLAG2_COWEXTSIZE);
+	extsize = be32_to_cpu(dip->di_cowextsize);
+	extsize_bytes = XFS_FSB_TO_B(sc->mp, extsize);
+
+	if (hint_flag && !xfs_sb_version_hasreflink(&mp->m_sb))
+		goto bad;
+
+	if (hint_flag && !(S_ISDIR(mode) || S_ISREG(mode)))
+		goto bad;
+
+	if (hint_flag && extsize == 0)
+		goto bad;
+
+	if (!hint_flag && extsize != 0)
+		goto bad;
+
+	if (hint_flag && rt_flag)
+		goto bad;
+
+	if (extsize_bytes % mp->m_sb.sb_blocksize)
+		goto bad;
+
+	if (extsize > MAXEXTLEN)
+		goto bad;
+
+	if (extsize > mp->m_sb.sb_agblocks / 2)
+		goto bad;
+
+	return;
+bad:
+	xfs_scrub_ino_set_corrupt(sc, ino, bp);
+}
+
+/* Make sure the di_flags make sense for the inode. */
+STATIC void
+xfs_scrub_inode_flags(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp,
+	struct xfs_dinode		*dip,
+	xfs_ino_t			ino,
+	uint16_t			mode,
+	uint16_t			flags)
+{
+	struct xfs_mount		*mp = sc->mp;
+
+	if (flags & ~XFS_DIFLAG_ANY)
+		goto bad;
+
+	/* rt flags require rt device */
+	if ((flags & (XFS_DIFLAG_REALTIME | XFS_DIFLAG_RTINHERIT)) &&
+	    !mp->m_rtdev_targp)
+		goto bad;
+
+	/* new rt bitmap flag only valid for rbmino */
+	if ((flags & XFS_DIFLAG_NEWRTBM) && ino != mp->m_sb.sb_rbmino)
+		goto bad;
+
+	/* directory-only flags */
+	if ((flags & (XFS_DIFLAG_RTINHERIT |
+		     XFS_DIFLAG_EXTSZINHERIT |
+		     XFS_DIFLAG_PROJINHERIT |
+		     XFS_DIFLAG_NOSYMLINKS)) &&
+	    !S_ISDIR(mode))
+		goto bad;
+
+	/* file-only flags */
+	if ((flags & (XFS_DIFLAG_REALTIME | FS_XFLAG_EXTSIZE)) &&
+	    !S_ISREG(mode))
+		goto bad;
+
+	/* filestreams and rt make no sense */
+	if ((flags & XFS_DIFLAG_FILESTREAM) && (flags & XFS_DIFLAG_REALTIME))
+		goto bad;
+
+	return;
+bad:
+	xfs_scrub_ino_set_corrupt(sc, ino, bp);
+}
+
+/* Make sure the di_flags2 make sense for the inode. */
+STATIC void
+xfs_scrub_inode_flags2(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp,
+	struct xfs_dinode		*dip,
+	xfs_ino_t			ino,
+	uint16_t			mode,
+	uint16_t			flags,
+	uint64_t			flags2)
+{
+	struct xfs_mount		*mp = sc->mp;
+
+	if (flags2 & ~XFS_DIFLAG2_ANY)
+		goto bad;
+
+	/* reflink flag requires reflink feature */
+	if ((flags2 & XFS_DIFLAG2_REFLINK) &&
+	    !xfs_sb_version_hasreflink(&mp->m_sb))
+		goto bad;
+
+	/* cowextsize flag is checked w.r.t. mode separately */
+
+	/* file/dir-only flags */
+	if ((flags2 & XFS_DIFLAG2_DAX) && !(S_ISREG(mode) || S_ISDIR(mode)))
+		goto bad;
+
+	/* file-only flags */
+	if ((flags2 & XFS_DIFLAG2_REFLINK) && !S_ISREG(mode))
+		goto bad;
+
+	/* realtime and reflink make no sense, currently */
+	if ((flags & XFS_DIFLAG_REALTIME) && (flags2 & XFS_DIFLAG2_REFLINK))
+		goto bad;
+
+	/* dax and reflink make no sense, currently */
+	if ((flags2 & XFS_DIFLAG2_DAX) && (flags2 & XFS_DIFLAG2_REFLINK))
+		goto bad;
+
+	return;
+bad:
+	xfs_scrub_ino_set_corrupt(sc, ino, bp);
+}
+
+/* Scrub all the ondisk inode fields. */
+STATIC void
+xfs_scrub_dinode(
+	struct xfs_scrub_context	*sc,
+	struct xfs_buf			*bp,
+	struct xfs_dinode		*dip,
+	xfs_ino_t			ino)
+{
+	struct xfs_mount		*mp = sc->mp;
+	size_t				fork_recs;
+	unsigned long long		isize;
+	uint64_t			flags2;
+	uint32_t			nextents;
+	uint16_t			flags;
+	uint16_t			mode;
+
+	flags = be16_to_cpu(dip->di_flags);
+	if (dip->di_version >= 3)
+		flags2 = be64_to_cpu(dip->di_flags2);
+	else
+		flags2 = 0;
+
+	/* di_mode */
+	mode = be16_to_cpu(dip->di_mode);
+	if (mode & ~(S_IALLUGO | S_IFMT))
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/* v1/v2 fields */
+	switch (dip->di_version) {
+	case 1:
+		/*
+		 * We autoconvert v1 inodes into v2 inodes on writeout,
+		 * so just mark this inode for preening.
+		 */
+		xfs_scrub_ino_set_preen(sc, ino, bp);
+		break;
+	case 2:
+	case 3:
+		if (dip->di_onlink != 0)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+		if (dip->di_mode == 0 && sc->ip)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+		if (dip->di_projid_hi != 0 &&
+		    !xfs_sb_version_hasprojid32bit(&mp->m_sb))
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	default:
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		return;
+	}
+
+	/*
+	 * di_uid/di_gid -- -1 isn't invalid, but there's no way that
+	 * userspace could have created that.
+	 */
+	if (dip->di_uid == cpu_to_be32(-1U) ||
+	    dip->di_gid == cpu_to_be32(-1U))
+		xfs_scrub_ino_set_warning(sc, ino, bp);
+
+	/* di_format */
+	switch (dip->di_format) {
+	case XFS_DINODE_FMT_DEV:
+		if (!S_ISCHR(mode) && !S_ISBLK(mode) &&
+		    !S_ISFIFO(mode) && !S_ISSOCK(mode))
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	case XFS_DINODE_FMT_LOCAL:
+		if (!S_ISDIR(mode) && !S_ISLNK(mode))
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	case XFS_DINODE_FMT_EXTENTS:
+		if (!S_ISREG(mode) && !S_ISDIR(mode) && !S_ISLNK(mode))
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		if (!S_ISREG(mode) && !S_ISDIR(mode))
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	case XFS_DINODE_FMT_UUID:
+	default:
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	}
+
+	/*
+	 * di_size.  xfs_dinode_verify checks for things that screw up
+	 * the VFS such as the upper bit being set and zero-length
+	 * symlinks/directories, but we can do more here.
+	 */
+	isize = be64_to_cpu(dip->di_size);
+	if (isize & (1ULL << 63))
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/* Devices, fifos, and sockets must have zero size */
+	if (!S_ISDIR(mode) && !S_ISREG(mode) && !S_ISLNK(mode) && isize != 0)
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/* Directories can't be larger than the data section size (32G) */
+	if (S_ISDIR(mode) && (isize == 0 || isize >= XFS_DIR2_SPACE_SIZE))
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/* Symlinks can't be larger than SYMLINK_MAXLEN */
+	if (S_ISLNK(mode) && (isize == 0 || isize >= XFS_SYMLINK_MAXLEN))
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/*
+	 * Warn if the running kernel can't handle the kinds of offsets
+	 * needed to deal with the file size.  In other words, if the
+	 * pagecache can't cache all the blocks in this file due to
+	 * overly large offsets, flag the inode for admin review.
+	 */
+	if (isize >= mp->m_super->s_maxbytes)
+		xfs_scrub_ino_set_warning(sc, ino, bp);
+
+	/* di_nblocks */
+	if (flags2 & XFS_DIFLAG2_REFLINK) {
+		; /* nblocks can exceed dblocks */
+	} else if (flags & XFS_DIFLAG_REALTIME) {
+		/*
+		 * nblocks is the sum of data extents (in the rtdev),
+		 * attr extents (in the datadev), and both forks' bmbt
+		 * blocks (in the datadev).  This clumsy check is the
+		 * best we can do without cross-referencing with the
+		 * inode forks.
+		 */
+		if (be64_to_cpu(dip->di_nblocks) >=
+		    mp->m_sb.sb_dblocks + mp->m_sb.sb_rblocks)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+	} else {
+		if (be64_to_cpu(dip->di_nblocks) >= mp->m_sb.sb_dblocks)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+	}
+
+	xfs_scrub_inode_flags(sc, bp, dip, ino, mode, flags);
+
+	xfs_scrub_inode_extsize(sc, bp, dip, ino, mode, flags);
+
+	/* di_nextents */
+	nextents = be32_to_cpu(dip->di_nextents);
+	fork_recs =  XFS_DFORK_DSIZE(dip, mp) / sizeof(struct xfs_bmbt_rec);
+	switch (dip->di_format) {
+	case XFS_DINODE_FMT_EXTENTS:
+		if (nextents > fork_recs)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		if (nextents <= fork_recs)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	default:
+		if (nextents != 0)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	}
+
+	/* di_forkoff */
+	if (XFS_DFORK_APTR(dip) >= (char *)dip + mp->m_sb.sb_inodesize)
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+	if (dip->di_anextents != 0 && dip->di_forkoff == 0)
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+	if (dip->di_forkoff == 0 && dip->di_aformat != XFS_DINODE_FMT_EXTENTS)
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/* di_aformat */
+	if (dip->di_aformat != XFS_DINODE_FMT_LOCAL &&
+	    dip->di_aformat != XFS_DINODE_FMT_EXTENTS &&
+	    dip->di_aformat != XFS_DINODE_FMT_BTREE)
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
+	/* di_anextents */
+	nextents = be16_to_cpu(dip->di_anextents);
+	fork_recs =  XFS_DFORK_ASIZE(dip, mp) / sizeof(struct xfs_bmbt_rec);
+	switch (dip->di_aformat) {
+	case XFS_DINODE_FMT_EXTENTS:
+		if (nextents > fork_recs)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	case XFS_DINODE_FMT_BTREE:
+		if (nextents <= fork_recs)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		break;
+	default:
+		if (nextents != 0)
+			xfs_scrub_ino_set_corrupt(sc, ino, bp);
+	}
+
+	if (dip->di_version >= 3) {
+		xfs_scrub_inode_flags2(sc, bp, dip, ino, mode, flags, flags2);
+		xfs_scrub_inode_cowextsize(sc, bp, dip, ino, mode, flags,
+				flags2);
+	}
+}
+
+/* Map and read a raw inode. */
+STATIC int
+xfs_scrub_inode_map_raw(
+	struct xfs_scrub_context	*sc,
+	xfs_ino_t			ino,
+	struct xfs_buf			**bpp,
+	struct xfs_dinode		**dipp)
+{
+	struct xfs_imap			imap;
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_buf			*bp = NULL;
+	struct xfs_dinode		*dip;
+	int				error;
+
+	error = xfs_imap(mp, sc->tp, ino, &imap, XFS_IGET_UNTRUSTED);
+	if (error == -EINVAL) {
+		/*
+		 * Inode could have gotten deleted out from under us;
+		 * just forget about it.
+		 */
+		error = -ENOENT;
+		goto out;
+	}
+	if (!xfs_scrub_process_error(sc, XFS_INO_TO_AGNO(mp, ino),
+			XFS_INO_TO_AGBNO(mp, ino), &error))
+		goto out;
+
+	error = xfs_trans_read_buf(mp, sc->tp, mp->m_ddev_targp,
+			imap.im_blkno, imap.im_len, XBF_UNMAPPED, &bp,
+			NULL);
+	if (!xfs_scrub_process_error(sc, XFS_INO_TO_AGNO(mp, ino),
+			XFS_INO_TO_AGBNO(mp, ino), &error))
+		goto out;
+
+	/*
+	 * Is this really an inode?  We disabled verifiers in the above
+	 * xfs_trans_read_buf call because the inode buffer verifier
+	 * fails on /any/ inode record in the inode cluster with a bad
+	 * magic or version number, not just the one that we're
+	 * checking.  Therefore, grab the buffer unconditionally, attach
+	 * the inode verifiers by hand, and run the inode verifier only
+	 * on the one inode we want.
+	 */
+	bp->b_ops = &xfs_inode_buf_ops;
+	dip = xfs_buf_offset(bp, imap.im_boffset);
+	if (!xfs_dinode_verify(mp, ino, dip) ||
+	    !xfs_dinode_good_version(mp, dip->di_version)) {
+		xfs_scrub_ino_set_corrupt(sc, ino, bp);
+		goto out_buf;
+	}
+
+	/* ...and is it the one we asked for? */
+	if (be32_to_cpu(dip->di_gen) != sc->sm->sm_gen) {
+		error = -ENOENT;
+		goto out_buf;
+	}
+
+	*dipp = dip;
+	*bpp = bp;
+out:
+	return error;
+out_buf:
+	xfs_trans_brelse(sc->tp, bp);
+	return error;
+}
+
+/* Scrub an inode. */
+int
+xfs_scrub_inode(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_dinode		di;
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_buf			*bp = NULL;
+	struct xfs_dinode		*dip;
+	xfs_ino_t			ino;
+
+	bool				has_shared;
+	int				error = 0;
+
+	/* Did we get the in-core inode, or are we doing this manually? */
+	if (sc->ip) {
+		ino = sc->ip->i_ino;
+		xfs_inode_to_disk(sc->ip, &di, 0);
+		dip = &di;
+	} else {
+		/* Map & read inode. */
+		ino = sc->sm->sm_ino;
+		error = xfs_scrub_inode_map_raw(sc, ino, &bp, &dip);
+		if (error || !bp)
+			goto out;
+	}
+
+	xfs_scrub_dinode(sc, bp, dip, ino);
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Now let's do the things that require a live inode. */
+	if (!sc->ip)
+		goto out;
+
+	/*
+	 * Does this inode have the reflink flag set but no shared extents?
+	 * Set the preening flag if this is the case.
+	 */
+	if (xfs_is_reflink_inode(sc->ip)) {
+		error = xfs_reflink_inode_has_shared_extents(sc->tp, sc->ip,
+				&has_shared);
+		if (!xfs_scrub_process_error(sc, XFS_INO_TO_AGNO(mp, ino),
+				XFS_INO_TO_AGBNO(mp, ino), &error))
+			goto out;
+		if (!has_shared)
+			xfs_scrub_ino_set_preen(sc, ino, bp);
+	}
+
+out:
+	if (bp)
+		xfs_trans_brelse(sc->tp, bp);
+	return error;
+}
diff --git a/fs/xfs/scrub/parent.c b/fs/xfs/scrub/parent.c
new file mode 100644
index 000000000000..63a25334fc83
--- /dev/null
+++ b/fs/xfs/scrub/parent.c
@@ -0,0 +1,317 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_icache.h"
+#include "xfs_dir2.h"
+#include "xfs_dir2_priv.h"
+#include "xfs_ialloc.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+
+/* Set us up to scrub parents. */
+int
+xfs_scrub_setup_parent(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_setup_inode_contents(sc, ip, 0);
+}
+
+/* Parent pointers */
+
+/* Look for an entry in a parent pointing to this inode. */
+
+struct xfs_scrub_parent_ctx {
+	struct dir_context		dc;
+	xfs_ino_t			ino;
+	xfs_nlink_t			nlink;
+};
+
+/* Look for a single entry in a directory pointing to an inode. */
+STATIC int
+xfs_scrub_parent_actor(
+	struct dir_context		*dc,
+	const char			*name,
+	int				namelen,
+	loff_t				pos,
+	u64				ino,
+	unsigned			type)
+{
+	struct xfs_scrub_parent_ctx	*spc;
+
+	spc = container_of(dc, struct xfs_scrub_parent_ctx, dc);
+	if (spc->ino == ino)
+		spc->nlink++;
+	return 0;
+}
+
+/* Count the number of dentries in the parent dir that point to this inode. */
+STATIC int
+xfs_scrub_parent_count_parent_dentries(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*parent,
+	xfs_nlink_t			*nlink)
+{
+	struct xfs_scrub_parent_ctx	spc = {
+		.dc.actor = xfs_scrub_parent_actor,
+		.dc.pos = 0,
+		.ino = sc->ip->i_ino,
+		.nlink = 0,
+	};
+	size_t				bufsize;
+	loff_t				oldpos;
+	uint				lock_mode;
+	int				error = 0;
+
+	/*
+	 * If there are any blocks, read-ahead block 0 as we're almost
+	 * certain to have the next operation be a read there.  This is
+	 * how we guarantee that the parent's extent map has been loaded,
+	 * if there is one.
+	 */
+	lock_mode = xfs_ilock_data_map_shared(parent);
+	if (parent->i_d.di_nextents > 0)
+		error = xfs_dir3_data_readahead(parent, 0, -1);
+	xfs_iunlock(parent, lock_mode);
+	if (error)
+		return error;
+
+	/*
+	 * Iterate the parent dir to confirm that there is
+	 * exactly one entry pointing back to the inode being
+	 * scanned.
+	 */
+	bufsize = (size_t)min_t(loff_t, XFS_READDIR_BUFSIZE,
+			parent->i_d.di_size);
+	oldpos = 0;
+	while (true) {
+		error = xfs_readdir(sc->tp, parent, &spc.dc, bufsize);
+		if (error)
+			goto out;
+		if (oldpos == spc.dc.pos)
+			break;
+		oldpos = spc.dc.pos;
+	}
+	*nlink = spc.nlink;
+out:
+	return error;
+}
+
+/*
+ * Given the inode number of the alleged parent of the inode being
+ * scrubbed, try to validate that the parent has exactly one directory
+ * entry pointing back to the inode being scrubbed.
+ */
+STATIC int
+xfs_scrub_parent_validate(
+	struct xfs_scrub_context	*sc,
+	xfs_ino_t			dnum,
+	bool				*try_again)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_inode		*dp = NULL;
+	xfs_nlink_t			expected_nlink;
+	xfs_nlink_t			nlink;
+	int				error = 0;
+
+	*try_again = false;
+
+	/* '..' must not point to ourselves. */
+	if (sc->ip->i_ino == dnum) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out;
+	}
+
+	/*
+	 * If we're an unlinked directory, the parent /won't/ have a link
+	 * to us.  Otherwise, it should have one link.
+	 */
+	expected_nlink = VFS_I(sc->ip)->i_nlink == 0 ? 0 : 1;
+
+	/*
+	 * Grab this parent inode.  We release the inode before we
+	 * cancel the scrub transaction.  Since we're don't know a
+	 * priori that releasing the inode won't trigger eofblocks
+	 * cleanup (which allocates what would be a nested transaction)
+	 * if the parent pointer erroneously points to a file, we
+	 * can't use DONTCACHE here because DONTCACHE inodes can trigger
+	 * immediate inactive cleanup of the inode.
+	 */
+	error = xfs_iget(mp, sc->tp, dnum, 0, 0, &dp);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
+		goto out;
+	if (dp == sc->ip) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out_rele;
+	}
+
+	/*
+	 * We prefer to keep the inode locked while we lock and search
+	 * its alleged parent for a forward reference.  If we can grab
+	 * the iolock, validate the pointers and we're done.  We must
+	 * use nowait here to avoid an ABBA deadlock on the parent and
+	 * the child inodes.
+	 */
+	if (xfs_ilock_nowait(dp, XFS_IOLOCK_SHARED)) {
+		error = xfs_scrub_parent_count_parent_dentries(sc, dp, &nlink);
+		if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0,
+				&error))
+			goto out_unlock;
+		if (nlink != expected_nlink)
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out_unlock;
+	}
+
+	/*
+	 * The game changes if we get here.  We failed to lock the parent,
+	 * so we're going to try to verify both pointers while only holding
+	 * one lock so as to avoid deadlocking with something that's actually
+	 * trying to traverse down the directory tree.
+	 */
+	xfs_iunlock(sc->ip, sc->ilock_flags);
+	sc->ilock_flags = 0;
+	xfs_ilock(dp, XFS_IOLOCK_SHARED);
+
+	/* Go looking for our dentry. */
+	error = xfs_scrub_parent_count_parent_dentries(sc, dp, &nlink);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
+		goto out_unlock;
+
+	/* Drop the parent lock, relock this inode. */
+	xfs_iunlock(dp, XFS_IOLOCK_SHARED);
+	sc->ilock_flags = XFS_IOLOCK_EXCL;
+	xfs_ilock(sc->ip, sc->ilock_flags);
+
+	/*
+	 * If we're an unlinked directory, the parent /won't/ have a link
+	 * to us.  Otherwise, it should have one link.  We have to re-set
+	 * it here because we dropped the lock on sc->ip.
+	 */
+	expected_nlink = VFS_I(sc->ip)->i_nlink == 0 ? 0 : 1;
+
+	/* Look up '..' to see if the inode changed. */
+	error = xfs_dir_lookup(sc->tp, sc->ip, &xfs_name_dotdot, &dnum, NULL);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
+		goto out_rele;
+
+	/* Drat, parent changed.  Try again! */
+	if (dnum != dp->i_ino) {
+		iput(VFS_I(dp));
+		*try_again = true;
+		return 0;
+	}
+	iput(VFS_I(dp));
+
+	/*
+	 * '..' didn't change, so check that there was only one entry
+	 * for us in the parent.
+	 */
+	if (nlink != expected_nlink)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+	return error;
+
+out_unlock:
+	xfs_iunlock(dp, XFS_IOLOCK_SHARED);
+out_rele:
+	iput(VFS_I(dp));
+out:
+	return error;
+}
+
+/* Scrub a parent pointer. */
+int
+xfs_scrub_parent(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_mount		*mp = sc->mp;
+	xfs_ino_t			dnum;
+	bool				try_again;
+	int				tries = 0;
+	int				error = 0;
+
+	/*
+	 * If we're a directory, check that the '..' link points up to
+	 * a directory that has one entry pointing to us.
+	 */
+	if (!S_ISDIR(VFS_I(sc->ip)->i_mode))
+		return -ENOENT;
+
+	/* We're not a special inode, are we? */
+	if (!xfs_verify_dir_ino(mp, sc->ip->i_ino)) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out;
+	}
+
+	/*
+	 * The VFS grabs a read or write lock via i_rwsem before it reads
+	 * or writes to a directory.  If we've gotten this far we've
+	 * already obtained IOLOCK_EXCL, which (since 4.10) is the same as
+	 * getting a write lock on i_rwsem.  Therefore, it is safe for us
+	 * to drop the ILOCK here in order to do directory lookups.
+	 */
+	sc->ilock_flags &= ~(XFS_ILOCK_EXCL | XFS_MMAPLOCK_EXCL);
+	xfs_iunlock(sc->ip, XFS_ILOCK_EXCL | XFS_MMAPLOCK_EXCL);
+
+	/* Look up '..' */
+	error = xfs_dir_lookup(sc->tp, sc->ip, &xfs_name_dotdot, &dnum, NULL);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
+		goto out;
+	if (!xfs_verify_dir_ino(mp, dnum)) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out;
+	}
+
+	/* Is this the root dir?  Then '..' must point to itself. */
+	if (sc->ip == mp->m_rootip) {
+		if (sc->ip->i_ino != mp->m_sb.sb_rootino ||
+		    sc->ip->i_ino != dnum)
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out;
+	}
+
+	do {
+		error = xfs_scrub_parent_validate(sc, dnum, &try_again);
+		if (error)
+			goto out;
+	} while (try_again && ++tries < 20);
+
+	/*
+	 * We gave it our best shot but failed, so mark this scrub
+	 * incomplete.  Userspace can decide if it wants to try again.
+	 */
+	if (try_again && tries == 20)
+		xfs_scrub_set_incomplete(sc);
+out:
+	return error;
+}
diff --git a/fs/xfs/scrub/quota.c b/fs/xfs/scrub/quota.c
new file mode 100644
index 000000000000..8e58ba842946
--- /dev/null
+++ b/fs/xfs/scrub/quota.c
@@ -0,0 +1,304 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_inode_fork.h"
+#include "xfs_alloc.h"
+#include "xfs_bmap.h"
+#include "xfs_quota.h"
+#include "xfs_qm.h"
+#include "xfs_dquot.h"
+#include "xfs_dquot_item.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+
+/* Convert a scrub type code to a DQ flag, or return 0 if error. */
+static inline uint
+xfs_scrub_quota_to_dqtype(
+	struct xfs_scrub_context	*sc)
+{
+	switch (sc->sm->sm_type) {
+	case XFS_SCRUB_TYPE_UQUOTA:
+		return XFS_DQ_USER;
+	case XFS_SCRUB_TYPE_GQUOTA:
+		return XFS_DQ_GROUP;
+	case XFS_SCRUB_TYPE_PQUOTA:
+		return XFS_DQ_PROJ;
+	default:
+		return 0;
+	}
+}
+
+/* Set us up to scrub a quota. */
+int
+xfs_scrub_setup_quota(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	uint				dqtype;
+
+	/*
+	 * If userspace gave us an AG number or inode data, they don't
+	 * know what they're doing.  Get out.
+	 */
+	if (sc->sm->sm_agno || sc->sm->sm_ino || sc->sm->sm_gen)
+		return -EINVAL;
+
+	dqtype = xfs_scrub_quota_to_dqtype(sc);
+	if (dqtype == 0)
+		return -EINVAL;
+	if (!xfs_this_quota_on(sc->mp, dqtype))
+		return -ENOENT;
+	return 0;
+}
+
+/* Quotas. */
+
+/* Scrub the fields in an individual quota item. */
+STATIC void
+xfs_scrub_quota_item(
+	struct xfs_scrub_context	*sc,
+	uint				dqtype,
+	struct xfs_dquot		*dq,
+	xfs_dqid_t			id)
+{
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_disk_dquot		*d = &dq->q_core;
+	struct xfs_quotainfo		*qi = mp->m_quotainfo;
+	xfs_fileoff_t			offset;
+	unsigned long long		bsoft;
+	unsigned long long		isoft;
+	unsigned long long		rsoft;
+	unsigned long long		bhard;
+	unsigned long long		ihard;
+	unsigned long long		rhard;
+	unsigned long long		bcount;
+	unsigned long long		icount;
+	unsigned long long		rcount;
+	xfs_ino_t			fs_icount;
+
+	offset = id * qi->qi_dqperchunk;
+
+	/*
+	 * We fed $id and DQNEXT into the xfs_qm_dqget call, which means
+	 * that the actual dquot we got must either have the same id or
+	 * the next higher id.
+	 */
+	if (id > be32_to_cpu(d->d_id))
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	/* Did we get the dquot type we wanted? */
+	if (dqtype != (d->d_flags & XFS_DQ_ALLTYPES))
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	if (d->d_pad0 != cpu_to_be32(0) || d->d_pad != cpu_to_be16(0))
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	/* Check the limits. */
+	bhard = be64_to_cpu(d->d_blk_hardlimit);
+	ihard = be64_to_cpu(d->d_ino_hardlimit);
+	rhard = be64_to_cpu(d->d_rtb_hardlimit);
+
+	bsoft = be64_to_cpu(d->d_blk_softlimit);
+	isoft = be64_to_cpu(d->d_ino_softlimit);
+	rsoft = be64_to_cpu(d->d_rtb_softlimit);
+
+	/*
+	 * Warn if the hard limits are larger than the fs.
+	 * Administrators can do this, though in production this seems
+	 * suspect, which is why we flag it for review.
+	 *
+	 * Complain about corruption if the soft limit is greater than
+	 * the hard limit.
+	 */
+	if (bhard > mp->m_sb.sb_dblocks)
+		xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+	if (bsoft > bhard)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	if (ihard > mp->m_maxicount)
+		xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+	if (isoft > ihard)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	if (rhard > mp->m_sb.sb_rblocks)
+		xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+	if (rsoft > rhard)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	/* Check the resource counts. */
+	bcount = be64_to_cpu(d->d_bcount);
+	icount = be64_to_cpu(d->d_icount);
+	rcount = be64_to_cpu(d->d_rtbcount);
+	fs_icount = percpu_counter_sum(&mp->m_icount);
+
+	/*
+	 * Check that usage doesn't exceed physical limits.  However, on
+	 * a reflink filesystem we're allowed to exceed physical space
+	 * if there are no quota limits.
+	 */
+	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+		if (mp->m_sb.sb_dblocks < bcount)
+			xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK,
+					offset);
+	} else {
+		if (mp->m_sb.sb_dblocks < bcount)
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
+					offset);
+	}
+	if (icount > fs_icount || rcount > mp->m_sb.sb_rblocks)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, offset);
+
+	/*
+	 * We can violate the hard limits if the admin suddenly sets a
+	 * lower limit than the actual usage.  However, we flag it for
+	 * admin review.
+	 */
+	if (id != 0 && bhard != 0 && bcount > bhard)
+		xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+	if (id != 0 && ihard != 0 && icount > ihard)
+		xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+	if (id != 0 && rhard != 0 && rcount > rhard)
+		xfs_scrub_fblock_set_warning(sc, XFS_DATA_FORK, offset);
+}
+
+/* Scrub all of a quota type's items. */
+int
+xfs_scrub_quota(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_bmbt_irec		irec = { 0 };
+	struct xfs_mount		*mp = sc->mp;
+	struct xfs_inode		*ip;
+	struct xfs_quotainfo		*qi = mp->m_quotainfo;
+	struct xfs_dquot		*dq;
+	xfs_fileoff_t			max_dqid_off;
+	xfs_fileoff_t			off = 0;
+	xfs_dqid_t			id = 0;
+	uint				dqtype;
+	int				nimaps;
+	int				error;
+
+	if (!XFS_IS_QUOTA_RUNNING(mp) || !XFS_IS_QUOTA_ON(mp))
+		return -ENOENT;
+
+	mutex_lock(&qi->qi_quotaofflock);
+	dqtype = xfs_scrub_quota_to_dqtype(sc);
+	if (!xfs_this_quota_on(sc->mp, dqtype)) {
+		error = -ENOENT;
+		goto out_unlock_quota;
+	}
+
+	/* Attach to the quota inode and set sc->ip so that reporting works. */
+	ip = xfs_quota_inode(sc->mp, dqtype);
+	sc->ip = ip;
+
+	/* Look for problem extents. */
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	if (ip->i_d.di_flags & XFS_DIFLAG_REALTIME) {
+		xfs_scrub_ino_set_corrupt(sc, sc->ip->i_ino, NULL);
+		goto out_unlock_inode;
+	}
+	max_dqid_off = ((xfs_dqid_t)-1) / qi->qi_dqperchunk;
+	while (1) {
+		if (xfs_scrub_should_terminate(sc, &error))
+			break;
+
+		off = irec.br_startoff + irec.br_blockcount;
+		nimaps = 1;
+		error = xfs_bmapi_read(ip, off, -1, &irec, &nimaps,
+				XFS_BMAPI_ENTIRE);
+		if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, off,
+				&error))
+			goto out_unlock_inode;
+		if (!nimaps)
+			break;
+		if (irec.br_startblock == HOLESTARTBLOCK)
+			continue;
+
+		/* Check the extent record doesn't point to crap. */
+		if (irec.br_startblock + irec.br_blockcount <=
+		    irec.br_startblock)
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
+					irec.br_startoff);
+		if (!xfs_verify_fsbno(mp, irec.br_startblock) ||
+		    !xfs_verify_fsbno(mp, irec.br_startblock +
+					irec.br_blockcount - 1))
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK,
+					irec.br_startoff);
+
+		/*
+		 * Unwritten extents or blocks mapped above the highest
+		 * quota id shouldn't happen.
+		 */
+		if (isnullstartblock(irec.br_startblock) ||
+		    irec.br_startoff > max_dqid_off ||
+		    irec.br_startoff + irec.br_blockcount > max_dqid_off + 1)
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, off);
+	}
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
+		goto out;
+
+	/* Check all the quota items. */
+	while (id < ((xfs_dqid_t)-1ULL)) {
+		if (xfs_scrub_should_terminate(sc, &error))
+			break;
+
+		error = xfs_qm_dqget(mp, NULL, id, dqtype, XFS_QMOPT_DQNEXT,
+				&dq);
+		if (error == -ENOENT)
+			break;
+		if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK,
+				id * qi->qi_dqperchunk, &error))
+			break;
+
+		xfs_scrub_quota_item(sc, dqtype, dq, id);
+
+		id = be32_to_cpu(dq->q_core.d_id) + 1;
+		xfs_qm_dqput(dq);
+		if (!id)
+			break;
+	}
+
+out:
+	/* We set sc->ip earlier, so make sure we clear it now. */
+	sc->ip = NULL;
+out_unlock_quota:
+	mutex_unlock(&qi->qi_quotaofflock);
+	return error;
+
+out_unlock_inode:
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	goto out;
+}
diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
new file mode 100644
index 000000000000..2f88a8d44bd0
--- /dev/null
+++ b/fs/xfs/scrub/refcount.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_alloc.h"
+#include "xfs_rmap.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/btree.h"
+#include "scrub/trace.h"
+
+/*
+ * Set us up to scrub reference count btrees.
+ */
+int
+xfs_scrub_setup_ag_refcountbt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_setup_ag_btree(sc, ip, false);
+}
+
+/* Reference count btree scrubber. */
+
+/* Scrub a refcountbt record. */
+STATIC int
+xfs_scrub_refcountbt_rec(
+	struct xfs_scrub_btree		*bs,
+	union xfs_btree_rec		*rec)
+{
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	xfs_agnumber_t			agno = bs->cur->bc_private.a.agno;
+	xfs_agblock_t			bno;
+	xfs_extlen_t			len;
+	xfs_nlink_t			refcount;
+	bool				has_cowflag;
+	int				error = 0;
+
+	bno = be32_to_cpu(rec->refc.rc_startblock);
+	len = be32_to_cpu(rec->refc.rc_blockcount);
+	refcount = be32_to_cpu(rec->refc.rc_refcount);
+
+	/* Only CoW records can have refcount == 1. */
+	has_cowflag = (bno & XFS_REFC_COW_START);
+	if ((refcount == 1 && !has_cowflag) || (refcount != 1 && has_cowflag))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	/* Check the extent. */
+	bno &= ~XFS_REFC_COW_START;
+	if (bno + len <= bno ||
+	    !xfs_verify_agbno(mp, agno, bno) ||
+	    !xfs_verify_agbno(mp, agno, bno + len - 1))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	if (refcount == 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	return error;
+}
+
+/* Scrub the refcount btree for some AG. */
+int
+xfs_scrub_refcountbt(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_owner_info		oinfo;
+
+	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_REFC);
+	return xfs_scrub_btree(sc, sc->sa.refc_cur, xfs_scrub_refcountbt_rec,
+			&oinfo, NULL);
+}
diff --git a/fs/xfs/scrub/rmap.c b/fs/xfs/scrub/rmap.c
new file mode 100644
index 000000000000..97846c424690
--- /dev/null
+++ b/fs/xfs/scrub/rmap.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
+#include "xfs_rmap.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/btree.h"
+#include "scrub/trace.h"
+
+/*
+ * Set us up to scrub reverse mapping btrees.
+ */
+int
+xfs_scrub_setup_ag_rmapbt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	return xfs_scrub_setup_ag_btree(sc, ip, false);
+}
+
+/* Reverse-mapping scrubber. */
+
+/* Scrub an rmapbt record. */
+STATIC int
+xfs_scrub_rmapbt_rec(
+	struct xfs_scrub_btree		*bs,
+	union xfs_btree_rec		*rec)
+{
+	struct xfs_mount		*mp = bs->cur->bc_mp;
+	struct xfs_rmap_irec		irec;
+	xfs_agnumber_t			agno = bs->cur->bc_private.a.agno;
+	bool				non_inode;
+	bool				is_unwritten;
+	bool				is_bmbt;
+	bool				is_attr;
+	int				error;
+
+	error = xfs_rmap_btrec_to_irec(rec, &irec);
+	if (!xfs_scrub_btree_process_error(bs->sc, bs->cur, 0, &error))
+		goto out;
+
+	/* Check extent. */
+	if (irec.rm_startblock + irec.rm_blockcount <= irec.rm_startblock)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	if (irec.rm_owner == XFS_RMAP_OWN_FS) {
+		/*
+		 * xfs_verify_agbno returns false for static fs metadata.
+		 * Since that only exists at the start of the AG, validate
+		 * that by hand.
+		 */
+		if (irec.rm_startblock != 0 ||
+		    irec.rm_blockcount != XFS_AGFL_BLOCK(mp) + 1)
+			xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+	} else {
+		/*
+		 * Otherwise we must point somewhere past the static metadata
+		 * but before the end of the FS.  Run the regular check.
+		 */
+		if (!xfs_verify_agbno(mp, agno, irec.rm_startblock) ||
+		    !xfs_verify_agbno(mp, agno, irec.rm_startblock +
+				irec.rm_blockcount - 1))
+			xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+	}
+
+	/* Check flags. */
+	non_inode = XFS_RMAP_NON_INODE_OWNER(irec.rm_owner);
+	is_bmbt = irec.rm_flags & XFS_RMAP_BMBT_BLOCK;
+	is_attr = irec.rm_flags & XFS_RMAP_ATTR_FORK;
+	is_unwritten = irec.rm_flags & XFS_RMAP_UNWRITTEN;
+
+	if (is_bmbt && irec.rm_offset != 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	if (non_inode && irec.rm_offset != 0)
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	if (is_unwritten && (is_bmbt || non_inode || is_attr))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	if (non_inode && (is_bmbt || is_unwritten || is_attr))
+		xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+
+	if (!non_inode) {
+		if (!xfs_verify_ino(mp, irec.rm_owner))
+			xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+	} else {
+		/* Non-inode owner within the magic values? */
+		if (irec.rm_owner <= XFS_RMAP_OWN_MIN ||
+		    irec.rm_owner > XFS_RMAP_OWN_FS)
+			xfs_scrub_btree_set_corrupt(bs->sc, bs->cur, 0);
+	}
+out:
+	return error;
+}
+
+/* Scrub the rmap btree for some AG. */
+int
+xfs_scrub_rmapbt(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_owner_info		oinfo;
+
+	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_AG);
+	return xfs_scrub_btree(sc, sc->sa.rmap_cur, xfs_scrub_rmapbt_rec,
+			&oinfo, NULL);
+}
diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c
new file mode 100644
index 000000000000..c6fedb698008
--- /dev/null
+++ b/fs/xfs/scrub/rtbitmap.c
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_alloc.h"
+#include "xfs_rtalloc.h"
+#include "xfs_inode.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+
+/* Set us up with the realtime metadata locked. */
+int
+xfs_scrub_setup_rt(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	struct xfs_mount		*mp = sc->mp;
+	int				error = 0;
+
+	/*
+	 * If userspace gave us an AG number or inode data, they don't
+	 * know what they're doing.  Get out.
+	 */
+	if (sc->sm->sm_agno || sc->sm->sm_ino || sc->sm->sm_gen)
+		return -EINVAL;
+
+	error = xfs_scrub_setup_fs(sc, ip);
+	if (error)
+		return error;
+
+	sc->ilock_flags = XFS_ILOCK_EXCL | XFS_ILOCK_RTBITMAP;
+	sc->ip = mp->m_rbmip;
+	xfs_ilock(sc->ip, sc->ilock_flags);
+
+	return 0;
+}
+
+/* Realtime bitmap. */
+
+/* Scrub a free extent record from the realtime bitmap. */
+STATIC int
+xfs_scrub_rtbitmap_rec(
+	struct xfs_trans		*tp,
+	struct xfs_rtalloc_rec		*rec,
+	void				*priv)
+{
+	struct xfs_scrub_context	*sc = priv;
+
+	if (rec->ar_startblock + rec->ar_blockcount <= rec->ar_startblock ||
+	    !xfs_verify_rtbno(sc->mp, rec->ar_startblock) ||
+	    !xfs_verify_rtbno(sc->mp, rec->ar_startblock +
+			rec->ar_blockcount - 1))
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+	return 0;
+}
+
+/* Scrub the realtime bitmap. */
+int
+xfs_scrub_rtbitmap(
+	struct xfs_scrub_context	*sc)
+{
+	int				error;
+
+	error = xfs_rtalloc_query_all(sc->tp, xfs_scrub_rtbitmap_rec, sc);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
+		goto out;
+
+out:
+	return error;
+}
+
+/* Scrub the realtime summary. */
+int
+xfs_scrub_rtsummary(
+	struct xfs_scrub_context	*sc)
+{
+	/* XXX: implement this some day */
+	return -ENOENT;
+}
diff --git a/fs/xfs/scrub/scrub.c b/fs/xfs/scrub/scrub.c
new file mode 100644
index 000000000000..9c42c4efd01e
--- /dev/null
+++ b/fs/xfs/scrub/scrub.c
@@ -0,0 +1,392 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_icache.h"
+#include "xfs_itable.h"
+#include "xfs_alloc.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_refcount.h"
+#include "xfs_refcount_btree.h"
+#include "xfs_rmap.h"
+#include "xfs_rmap_btree.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+#include "scrub/scrub.h"
+#include "scrub/btree.h"
+
+/*
+ * Online Scrub and Repair
+ *
+ * Traditionally, XFS (the kernel driver) did not know how to check or
+ * repair on-disk data structures.  That task was left to the xfs_check
+ * and xfs_repair tools, both of which require taking the filesystem
+ * offline for a thorough but time consuming examination.  Online
+ * scrub & repair, on the other hand, enables us to check the metadata
+ * for obvious errors while carefully stepping around the filesystem's
+ * ongoing operations, locking rules, etc.
+ *
+ * Given that most XFS metadata consist of records stored in a btree,
+ * most of the checking functions iterate the btree blocks themselves
+ * looking for irregularities.  When a record block is encountered, each
+ * record can be checked for obviously bad values.  Record values can
+ * also be cross-referenced against other btrees to look for potential
+ * misunderstandings between pieces of metadata.
+ *
+ * It is expected that the checkers responsible for per-AG metadata
+ * structures will lock the AG headers (AGI, AGF, AGFL), iterate the
+ * metadata structure, and perform any relevant cross-referencing before
+ * unlocking the AG and returning the results to userspace.  These
+ * scrubbers must not keep an AG locked for too long to avoid tying up
+ * the block and inode allocators.
+ *
+ * Block maps and b-trees rooted in an inode present a special challenge
+ * because they can involve extents from any AG.  The general scrubber
+ * structure of lock -> check -> xref -> unlock still holds, but AG
+ * locking order rules /must/ be obeyed to avoid deadlocks.  The
+ * ordering rule, of course, is that we must lock in increasing AG
+ * order.  Helper functions are provided to track which AG headers we've
+ * already locked.  If we detect an imminent locking order violation, we
+ * can signal a potential deadlock, in which case the scrubber can jump
+ * out to the top level, lock all the AGs in order, and retry the scrub.
+ *
+ * For file data (directories, extended attributes, symlinks) scrub, we
+ * can simply lock the inode and walk the data.  For btree data
+ * (directories and attributes) we follow the same btree-scrubbing
+ * strategy outlined previously to check the records.
+ *
+ * We use a bit of trickery with transactions to avoid buffer deadlocks
+ * if there is a cycle in the metadata.  The basic problem is that
+ * travelling down a btree involves locking the current buffer at each
+ * tree level.  If a pointer should somehow point back to a buffer that
+ * we've already examined, we will deadlock due to the second buffer
+ * locking attempt.  Note however that grabbing a buffer in transaction
+ * context links the locked buffer to the transaction.  If we try to
+ * re-grab the buffer in the context of the same transaction, we avoid
+ * the second lock attempt and continue.  Between the verifier and the
+ * scrubber, something will notice that something is amiss and report
+ * the corruption.  Therefore, each scrubber will allocate an empty
+ * transaction, attach buffers to it, and cancel the transaction at the
+ * end of the scrub run.  Cancelling a non-dirty transaction simply
+ * unlocks the buffers.
+ *
+ * There are four pieces of data that scrub can communicate to
+ * userspace.  The first is the error code (errno), which can be used to
+ * communicate operational errors in performing the scrub.  There are
+ * also three flags that can be set in the scrub context.  If the data
+ * structure itself is corrupt, the CORRUPT flag will be set.  If
+ * the metadata is correct but otherwise suboptimal, the PREEN flag
+ * will be set.
+ */
+
+/*
+ * Scrub probe -- userspace uses this to probe if we're willing to scrub
+ * or repair a given mountpoint.  This will be used by xfs_scrub to
+ * probe the kernel's abilities to scrub (and repair) the metadata.  We
+ * do this by validating the ioctl inputs from userspace, preparing the
+ * filesystem for a scrub (or a repair) operation, and immediately
+ * returning to userspace.  Userspace can use the returned errno and
+ * structure state to decide (in broad terms) if scrub/repair are
+ * supported by the running kernel.
+ */
+static int
+xfs_scrub_probe(
+	struct xfs_scrub_context	*sc)
+{
+	int				error = 0;
+
+	if (sc->sm->sm_ino || sc->sm->sm_agno)
+		return -EINVAL;
+	if (xfs_scrub_should_terminate(sc, &error))
+		return error;
+
+	return 0;
+}
+
+/* Scrub setup and teardown */
+
+/* Free all the resources and finish the transactions. */
+STATIC int
+xfs_scrub_teardown(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip_in,
+	int				error)
+{
+	xfs_scrub_ag_free(sc, &sc->sa);
+	if (sc->tp) {
+		xfs_trans_cancel(sc->tp);
+		sc->tp = NULL;
+	}
+	if (sc->ip) {
+		xfs_iunlock(sc->ip, sc->ilock_flags);
+		if (sc->ip != ip_in &&
+		    !xfs_internal_inum(sc->mp, sc->ip->i_ino))
+			iput(VFS_I(sc->ip));
+		sc->ip = NULL;
+	}
+	if (sc->buf) {
+		kmem_free(sc->buf);
+		sc->buf = NULL;
+	}
+	return error;
+}
+
+/* Scrubbing dispatch. */
+
+static const struct xfs_scrub_meta_ops meta_scrub_ops[] = {
+	{ /* ioctl presence test */
+		.setup	= xfs_scrub_setup_fs,
+		.scrub	= xfs_scrub_probe,
+	},
+	{ /* superblock */
+		.setup	= xfs_scrub_setup_ag_header,
+		.scrub	= xfs_scrub_superblock,
+	},
+	{ /* agf */
+		.setup	= xfs_scrub_setup_ag_header,
+		.scrub	= xfs_scrub_agf,
+	},
+	{ /* agfl */
+		.setup	= xfs_scrub_setup_ag_header,
+		.scrub	= xfs_scrub_agfl,
+	},
+	{ /* agi */
+		.setup	= xfs_scrub_setup_ag_header,
+		.scrub	= xfs_scrub_agi,
+	},
+	{ /* bnobt */
+		.setup	= xfs_scrub_setup_ag_allocbt,
+		.scrub	= xfs_scrub_bnobt,
+	},
+	{ /* cntbt */
+		.setup	= xfs_scrub_setup_ag_allocbt,
+		.scrub	= xfs_scrub_cntbt,
+	},
+	{ /* inobt */
+		.setup	= xfs_scrub_setup_ag_iallocbt,
+		.scrub	= xfs_scrub_inobt,
+	},
+	{ /* finobt */
+		.setup	= xfs_scrub_setup_ag_iallocbt,
+		.scrub	= xfs_scrub_finobt,
+		.has	= xfs_sb_version_hasfinobt,
+	},
+	{ /* rmapbt */
+		.setup	= xfs_scrub_setup_ag_rmapbt,
+		.scrub	= xfs_scrub_rmapbt,
+		.has	= xfs_sb_version_hasrmapbt,
+	},
+	{ /* refcountbt */
+		.setup	= xfs_scrub_setup_ag_refcountbt,
+		.scrub	= xfs_scrub_refcountbt,
+		.has	= xfs_sb_version_hasreflink,
+	},
+	{ /* inode record */
+		.setup	= xfs_scrub_setup_inode,
+		.scrub	= xfs_scrub_inode,
+	},
+	{ /* inode data fork */
+		.setup	= xfs_scrub_setup_inode_bmap,
+		.scrub	= xfs_scrub_bmap_data,
+	},
+	{ /* inode attr fork */
+		.setup	= xfs_scrub_setup_inode_bmap,
+		.scrub	= xfs_scrub_bmap_attr,
+	},
+	{ /* inode CoW fork */
+		.setup	= xfs_scrub_setup_inode_bmap,
+		.scrub	= xfs_scrub_bmap_cow,
+	},
+	{ /* directory */
+		.setup	= xfs_scrub_setup_directory,
+		.scrub	= xfs_scrub_directory,
+	},
+	{ /* extended attributes */
+		.setup	= xfs_scrub_setup_xattr,
+		.scrub	= xfs_scrub_xattr,
+	},
+	{ /* symbolic link */
+		.setup	= xfs_scrub_setup_symlink,
+		.scrub	= xfs_scrub_symlink,
+	},
+	{ /* parent pointers */
+		.setup	= xfs_scrub_setup_parent,
+		.scrub	= xfs_scrub_parent,
+	},
+	{ /* realtime bitmap */
+		.setup	= xfs_scrub_setup_rt,
+		.scrub	= xfs_scrub_rtbitmap,
+		.has	= xfs_sb_version_hasrealtime,
+	},
+	{ /* realtime summary */
+		.setup	= xfs_scrub_setup_rt,
+		.scrub	= xfs_scrub_rtsummary,
+		.has	= xfs_sb_version_hasrealtime,
+	},
+	{ /* user quota */
+		.setup = xfs_scrub_setup_quota,
+		.scrub = xfs_scrub_quota,
+	},
+	{ /* group quota */
+		.setup = xfs_scrub_setup_quota,
+		.scrub = xfs_scrub_quota,
+	},
+	{ /* project quota */
+		.setup = xfs_scrub_setup_quota,
+		.scrub = xfs_scrub_quota,
+	},
+};
+
+/* This isn't a stable feature, warn once per day. */
+static inline void
+xfs_scrub_experimental_warning(
+	struct xfs_mount	*mp)
+{
+	static struct ratelimit_state scrub_warning = RATELIMIT_STATE_INIT(
+			"xfs_scrub_warning", 86400 * HZ, 1);
+	ratelimit_set_flags(&scrub_warning, RATELIMIT_MSG_ON_RELEASE);
+
+	if (__ratelimit(&scrub_warning))
+		xfs_alert(mp,
+"EXPERIMENTAL online scrub feature in use. Use at your own risk!");
+}
+
+/* Dispatch metadata scrubbing. */
+int
+xfs_scrub_metadata(
+	struct xfs_inode		*ip,
+	struct xfs_scrub_metadata	*sm)
+{
+	struct xfs_scrub_context	sc;
+	struct xfs_mount		*mp = ip->i_mount;
+	const struct xfs_scrub_meta_ops	*ops;
+	bool				try_harder = false;
+	int				error = 0;
+
+	trace_xfs_scrub_start(ip, sm, error);
+
+	/* Forbidden if we are shut down or mounted norecovery. */
+	error = -ESHUTDOWN;
+	if (XFS_FORCED_SHUTDOWN(mp))
+		goto out;
+	error = -ENOTRECOVERABLE;
+	if (mp->m_flags & XFS_MOUNT_NORECOVERY)
+		goto out;
+
+	/* Check our inputs. */
+	error = -EINVAL;
+	sm->sm_flags &= ~XFS_SCRUB_FLAGS_OUT;
+	if (sm->sm_flags & ~XFS_SCRUB_FLAGS_IN)
+		goto out;
+	if (memchr_inv(sm->sm_reserved, 0, sizeof(sm->sm_reserved)))
+		goto out;
+
+	/* Do we know about this type of metadata? */
+	error = -ENOENT;
+	if (sm->sm_type >= XFS_SCRUB_TYPE_NR)
+		goto out;
+	ops = &meta_scrub_ops[sm->sm_type];
+	if (ops->scrub == NULL)
+		goto out;
+
+	/*
+	 * We won't scrub any filesystem that doesn't have the ability
+	 * to record unwritten extents.  The option was made default in
+	 * 2003, removed from mkfs in 2007, and cannot be disabled in
+	 * v5, so if we find a filesystem without this flag it's either
+	 * really old or totally unsupported.  Avoid it either way.
+	 * We also don't support v1-v3 filesystems, which aren't
+	 * mountable.
+	 */
+	error = -EOPNOTSUPP;
+	if (!xfs_sb_version_hasextflgbit(&mp->m_sb))
+		goto out;
+
+	/* Does this fs even support this type of metadata? */
+	error = -ENOENT;
+	if (ops->has && !ops->has(&mp->m_sb))
+		goto out;
+
+	/* We don't know how to repair anything yet. */
+	error = -EOPNOTSUPP;
+	if (sm->sm_flags & XFS_SCRUB_IFLAG_REPAIR)
+		goto out;
+
+	xfs_scrub_experimental_warning(mp);
+
+retry_op:
+	/* Set up for the operation. */
+	memset(&sc, 0, sizeof(sc));
+	sc.mp = ip->i_mount;
+	sc.sm = sm;
+	sc.ops = ops;
+	sc.try_harder = try_harder;
+	sc.sa.agno = NULLAGNUMBER;
+	error = sc.ops->setup(&sc, ip);
+	if (error)
+		goto out_teardown;
+
+	/* Scrub for errors. */
+	error = sc.ops->scrub(&sc);
+	if (!try_harder && error == -EDEADLOCK) {
+		/*
+		 * Scrubbers return -EDEADLOCK to mean 'try harder'.
+		 * Tear down everything we hold, then set up again with
+		 * preparation for worst-case scenarios.
+		 */
+		error = xfs_scrub_teardown(&sc, ip, 0);
+		if (error)
+			goto out;
+		try_harder = true;
+		goto retry_op;
+	} else if (error)
+		goto out_teardown;
+
+	if (sc.sm->sm_flags & (XFS_SCRUB_OFLAG_CORRUPT |
+			       XFS_SCRUB_OFLAG_XCORRUPT))
+		xfs_alert_ratelimited(mp, "Corruption detected during scrub.");
+
+out_teardown:
+	error = xfs_scrub_teardown(&sc, ip, error);
+out:
+	trace_xfs_scrub_done(ip, sm, error);
+	if (error == -EFSCORRUPTED || error == -EFSBADCRC) {
+		sm->sm_flags |= XFS_SCRUB_OFLAG_CORRUPT;
+		error = 0;
+	}
+	return error;
+}
diff --git a/fs/xfs/scrub/scrub.h b/fs/xfs/scrub/scrub.h
new file mode 100644
index 000000000000..e9ec041cf713
--- /dev/null
+++ b/fs/xfs/scrub/scrub.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __XFS_SCRUB_SCRUB_H__
+#define __XFS_SCRUB_SCRUB_H__
+
+struct xfs_scrub_context;
+
+struct xfs_scrub_meta_ops {
+	/* Acquire whatever resources are needed for the operation. */
+	int		(*setup)(struct xfs_scrub_context *,
+				 struct xfs_inode *);
+
+	/* Examine metadata for errors. */
+	int		(*scrub)(struct xfs_scrub_context *);
+
+	/* Decide if we even have this piece of metadata. */
+	bool		(*has)(struct xfs_sb *);
+};
+
+/* Buffer pointers and btree cursors for an entire AG. */
+struct xfs_scrub_ag {
+	xfs_agnumber_t			agno;
+
+	/* AG btree roots */
+	struct xfs_buf			*agf_bp;
+	struct xfs_buf			*agfl_bp;
+	struct xfs_buf			*agi_bp;
+
+	/* AG btrees */
+	struct xfs_btree_cur		*bno_cur;
+	struct xfs_btree_cur		*cnt_cur;
+	struct xfs_btree_cur		*ino_cur;
+	struct xfs_btree_cur		*fino_cur;
+	struct xfs_btree_cur		*rmap_cur;
+	struct xfs_btree_cur		*refc_cur;
+};
+
+struct xfs_scrub_context {
+	/* General scrub state. */
+	struct xfs_mount		*mp;
+	struct xfs_scrub_metadata	*sm;
+	const struct xfs_scrub_meta_ops	*ops;
+	struct xfs_trans		*tp;
+	struct xfs_inode		*ip;
+	void				*buf;
+	uint				ilock_flags;
+	bool				try_harder;
+
+	/* State tracking for single-AG operations. */
+	struct xfs_scrub_ag		sa;
+};
+
+/* Metadata scrubbers */
+int xfs_scrub_tester(struct xfs_scrub_context *sc);
+int xfs_scrub_superblock(struct xfs_scrub_context *sc);
+int xfs_scrub_agf(struct xfs_scrub_context *sc);
+int xfs_scrub_agfl(struct xfs_scrub_context *sc);
+int xfs_scrub_agi(struct xfs_scrub_context *sc);
+int xfs_scrub_bnobt(struct xfs_scrub_context *sc);
+int xfs_scrub_cntbt(struct xfs_scrub_context *sc);
+int xfs_scrub_inobt(struct xfs_scrub_context *sc);
+int xfs_scrub_finobt(struct xfs_scrub_context *sc);
+int xfs_scrub_rmapbt(struct xfs_scrub_context *sc);
+int xfs_scrub_refcountbt(struct xfs_scrub_context *sc);
+int xfs_scrub_inode(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_data(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_attr(struct xfs_scrub_context *sc);
+int xfs_scrub_bmap_cow(struct xfs_scrub_context *sc);
+int xfs_scrub_directory(struct xfs_scrub_context *sc);
+int xfs_scrub_xattr(struct xfs_scrub_context *sc);
+int xfs_scrub_symlink(struct xfs_scrub_context *sc);
+int xfs_scrub_parent(struct xfs_scrub_context *sc);
+#ifdef CONFIG_XFS_RT
+int xfs_scrub_rtbitmap(struct xfs_scrub_context *sc);
+int xfs_scrub_rtsummary(struct xfs_scrub_context *sc);
+#else
+static inline int
+xfs_scrub_rtbitmap(struct xfs_scrub_context *sc)
+{
+	return -ENOENT;
+}
+static inline int
+xfs_scrub_rtsummary(struct xfs_scrub_context *sc)
+{
+	return -ENOENT;
+}
+#endif
+#ifdef CONFIG_XFS_QUOTA
+int xfs_scrub_quota(struct xfs_scrub_context *sc);
+#else
+static inline int
+xfs_scrub_quota(struct xfs_scrub_context *sc)
+{
+	return -ENOENT;
+}
+#endif
+
+#endif	/* __XFS_SCRUB_SCRUB_H__ */
diff --git a/fs/xfs/scrub/symlink.c b/fs/xfs/scrub/symlink.c
new file mode 100644
index 000000000000..3aa3d60f7c16
--- /dev/null
+++ b/fs/xfs/scrub/symlink.c
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_btree.h"
+#include "xfs_bit.h"
+#include "xfs_log_format.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_inode.h"
+#include "xfs_inode_fork.h"
+#include "xfs_symlink.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+#include "scrub/trace.h"
+
+/* Set us up to scrub a symbolic link. */
+int
+xfs_scrub_setup_symlink(
+	struct xfs_scrub_context	*sc,
+	struct xfs_inode		*ip)
+{
+	/* Allocate the buffer without the inode lock held. */
+	sc->buf = kmem_zalloc_large(XFS_SYMLINK_MAXLEN + 1, KM_SLEEP);
+	if (!sc->buf)
+		return -ENOMEM;
+
+	return xfs_scrub_setup_inode_contents(sc, ip, 0);
+}
+
+/* Symbolic links. */
+
+int
+xfs_scrub_symlink(
+	struct xfs_scrub_context	*sc)
+{
+	struct xfs_inode		*ip = sc->ip;
+	struct xfs_ifork		*ifp;
+	loff_t				len;
+	int				error = 0;
+
+	if (!S_ISLNK(VFS_I(ip)->i_mode))
+		return -ENOENT;
+	ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
+	len = ip->i_d.di_size;
+
+	/* Plausible size? */
+	if (len > XFS_SYMLINK_MAXLEN || len <= 0) {
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out;
+	}
+
+	/* Inline symlink? */
+	if (ifp->if_flags & XFS_IFINLINE) {
+		if (len > XFS_IFORK_DSIZE(ip) ||
+		    len > strnlen(ifp->if_u1.if_data, XFS_IFORK_DSIZE(ip)))
+			xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+		goto out;
+	}
+
+	/* Remote symlink; must read the contents. */
+	error = xfs_readlink_bmap_ilocked(sc->ip, sc->buf);
+	if (!xfs_scrub_fblock_process_error(sc, XFS_DATA_FORK, 0, &error))
+		goto out;
+	if (strnlen(sc->buf, XFS_SYMLINK_MAXLEN) < len)
+		xfs_scrub_fblock_set_corrupt(sc, XFS_DATA_FORK, 0);
+out:
+	return error;
+}
diff --git a/fs/xfs/scrub/trace.c b/fs/xfs/scrub/trace.c
new file mode 100644
index 000000000000..472080e75788
--- /dev/null
+++ b/fs/xfs/scrub/trace.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_defer.h"
+#include "xfs_da_format.h"
+#include "xfs_defer.h"
+#include "xfs_inode.h"
+#include "xfs_btree.h"
+#include "xfs_trans.h"
+#include "xfs_bit.h"
+#include "scrub/xfs_scrub.h"
+#include "scrub/scrub.h"
+#include "scrub/common.h"
+
+/* Figure out which block the btree cursor was pointing to. */
+static inline xfs_fsblock_t
+xfs_scrub_btree_cur_fsbno(
+	struct xfs_btree_cur		*cur,
+	int				level)
+{
+	if (level < cur->bc_nlevels && cur->bc_bufs[level])
+		return XFS_DADDR_TO_FSB(cur->bc_mp, cur->bc_bufs[level]->b_bn);
+	else if (level == cur->bc_nlevels - 1 &&
+		 cur->bc_flags & XFS_BTREE_LONG_PTRS)
+		return XFS_INO_TO_FSB(cur->bc_mp, cur->bc_private.b.ip->i_ino);
+	else if (!(cur->bc_flags & XFS_BTREE_LONG_PTRS))
+		return XFS_AGB_TO_FSB(cur->bc_mp, cur->bc_private.a.agno, 0);
+	return NULLFSBLOCK;
+}
+
+/*
+ * We include this last to have the helpers above available for the trace
+ * event implementations.
+ */
+#define CREATE_TRACE_POINTS
+#include "scrub/trace.h"
diff --git a/fs/xfs/scrub/trace.h b/fs/xfs/scrub/trace.h
new file mode 100644
index 000000000000..c4ebfb5c1ee8
--- /dev/null
+++ b/fs/xfs/scrub/trace.h
@@ -0,0 +1,499 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM xfs_scrub
+
+#if !defined(_TRACE_XFS_SCRUB_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_XFS_SCRUB_TRACE_H
+
+#include <linux/tracepoint.h>
+#include "xfs_bit.h"
+
+DECLARE_EVENT_CLASS(xfs_scrub_class,
+	TP_PROTO(struct xfs_inode *ip, struct xfs_scrub_metadata *sm,
+		 int error),
+	TP_ARGS(ip, sm, error),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(unsigned int, type)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_ino_t, inum)
+		__field(unsigned int, gen)
+		__field(unsigned int, flags)
+		__field(int, error)
+	),
+	TP_fast_assign(
+		__entry->dev = ip->i_mount->m_super->s_dev;
+		__entry->ino = ip->i_ino;
+		__entry->type = sm->sm_type;
+		__entry->agno = sm->sm_agno;
+		__entry->inum = sm->sm_ino;
+		__entry->gen = sm->sm_gen;
+		__entry->flags = sm->sm_flags;
+		__entry->error = error;
+	),
+	TP_printk("dev %d:%d ino %llu type %u agno %u inum %llu gen %u flags 0x%x error %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->type,
+		  __entry->agno,
+		  __entry->inum,
+		  __entry->gen,
+		  __entry->flags,
+		  __entry->error)
+)
+#define DEFINE_SCRUB_EVENT(name) \
+DEFINE_EVENT(xfs_scrub_class, name, \
+	TP_PROTO(struct xfs_inode *ip, struct xfs_scrub_metadata *sm, \
+		 int error), \
+	TP_ARGS(ip, sm, error))
+
+DEFINE_SCRUB_EVENT(xfs_scrub_start);
+DEFINE_SCRUB_EVENT(xfs_scrub_done);
+DEFINE_SCRUB_EVENT(xfs_scrub_deadlock_retry);
+
+TRACE_EVENT(xfs_scrub_op_error,
+	TP_PROTO(struct xfs_scrub_context *sc, xfs_agnumber_t agno,
+		 xfs_agblock_t bno, int error, void *ret_ip),
+	TP_ARGS(sc, agno, bno, error, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(unsigned int, type)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(int, error)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->type = sc->sm->sm_type;
+		__entry->agno = agno;
+		__entry->bno = bno;
+		__entry->error = error;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d type %u agno %u agbno %u error %d ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->type,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->error,
+		  __entry->ret_ip)
+);
+
+TRACE_EVENT(xfs_scrub_file_op_error,
+	TP_PROTO(struct xfs_scrub_context *sc, int whichfork,
+		 xfs_fileoff_t offset, int error, void *ret_ip),
+	TP_ARGS(sc, whichfork, offset, error, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(int, whichfork)
+		__field(unsigned int, type)
+		__field(xfs_fileoff_t, offset)
+		__field(int, error)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		__entry->dev = sc->ip->i_mount->m_super->s_dev;
+		__entry->ino = sc->ip->i_ino;
+		__entry->whichfork = whichfork;
+		__entry->type = sc->sm->sm_type;
+		__entry->offset = offset;
+		__entry->error = error;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d ino %llu fork %d type %u offset %llu error %d ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->whichfork,
+		  __entry->type,
+		  __entry->offset,
+		  __entry->error,
+		  __entry->ret_ip)
+);
+
+DECLARE_EVENT_CLASS(xfs_scrub_block_error_class,
+	TP_PROTO(struct xfs_scrub_context *sc, xfs_daddr_t daddr, void *ret_ip),
+	TP_ARGS(sc, daddr, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(unsigned int, type)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t	fsbno;
+		xfs_agnumber_t	agno;
+		xfs_agblock_t	bno;
+
+		fsbno = XFS_DADDR_TO_FSB(sc->mp, daddr);
+		agno = XFS_FSB_TO_AGNO(sc->mp, fsbno);
+		bno = XFS_FSB_TO_AGBNO(sc->mp, fsbno);
+
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->type = sc->sm->sm_type;
+		__entry->agno = agno;
+		__entry->bno = bno;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d type %u agno %u agbno %u ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->type,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->ret_ip)
+)
+
+#define DEFINE_SCRUB_BLOCK_ERROR_EVENT(name) \
+DEFINE_EVENT(xfs_scrub_block_error_class, name, \
+	TP_PROTO(struct xfs_scrub_context *sc, xfs_daddr_t daddr, \
+		 void *ret_ip), \
+	TP_ARGS(sc, daddr, ret_ip))
+
+DEFINE_SCRUB_BLOCK_ERROR_EVENT(xfs_scrub_block_error);
+DEFINE_SCRUB_BLOCK_ERROR_EVENT(xfs_scrub_block_preen);
+
+DECLARE_EVENT_CLASS(xfs_scrub_ino_error_class,
+	TP_PROTO(struct xfs_scrub_context *sc, xfs_ino_t ino, xfs_daddr_t daddr,
+		 void *ret_ip),
+	TP_ARGS(sc, ino, daddr, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(unsigned int, type)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t	fsbno;
+		xfs_agnumber_t	agno;
+		xfs_agblock_t	bno;
+
+		if (daddr) {
+			fsbno = XFS_DADDR_TO_FSB(sc->mp, daddr);
+			agno = XFS_FSB_TO_AGNO(sc->mp, fsbno);
+			bno = XFS_FSB_TO_AGBNO(sc->mp, fsbno);
+		} else {
+			agno = XFS_INO_TO_AGNO(sc->mp, ino);
+			bno = XFS_AGINO_TO_AGBNO(sc->mp,
+					XFS_INO_TO_AGINO(sc->mp, ino));
+		}
+
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->ino = ino;
+		__entry->type = sc->sm->sm_type;
+		__entry->agno = agno;
+		__entry->bno = bno;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d ino %llu type %u agno %u agbno %u ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->type,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->ret_ip)
+)
+
+#define DEFINE_SCRUB_INO_ERROR_EVENT(name) \
+DEFINE_EVENT(xfs_scrub_ino_error_class, name, \
+	TP_PROTO(struct xfs_scrub_context *sc, xfs_ino_t ino, \
+		 xfs_daddr_t daddr, void *ret_ip), \
+	TP_ARGS(sc, ino, daddr, ret_ip))
+
+DEFINE_SCRUB_INO_ERROR_EVENT(xfs_scrub_ino_error);
+DEFINE_SCRUB_INO_ERROR_EVENT(xfs_scrub_ino_preen);
+DEFINE_SCRUB_INO_ERROR_EVENT(xfs_scrub_ino_warning);
+
+DECLARE_EVENT_CLASS(xfs_scrub_fblock_error_class,
+	TP_PROTO(struct xfs_scrub_context *sc, int whichfork,
+		 xfs_fileoff_t offset, void *ret_ip),
+	TP_ARGS(sc, whichfork, offset, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(int, whichfork)
+		__field(unsigned int, type)
+		__field(xfs_fileoff_t, offset)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		__entry->dev = sc->ip->i_mount->m_super->s_dev;
+		__entry->ino = sc->ip->i_ino;
+		__entry->whichfork = whichfork;
+		__entry->type = sc->sm->sm_type;
+		__entry->offset = offset;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d ino %llu fork %d type %u offset %llu ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->whichfork,
+		  __entry->type,
+		  __entry->offset,
+		  __entry->ret_ip)
+);
+
+#define DEFINE_SCRUB_FBLOCK_ERROR_EVENT(name) \
+DEFINE_EVENT(xfs_scrub_fblock_error_class, name, \
+	TP_PROTO(struct xfs_scrub_context *sc, int whichfork, \
+		 xfs_fileoff_t offset, void *ret_ip), \
+	TP_ARGS(sc, whichfork, offset, ret_ip))
+
+DEFINE_SCRUB_FBLOCK_ERROR_EVENT(xfs_scrub_fblock_error);
+DEFINE_SCRUB_FBLOCK_ERROR_EVENT(xfs_scrub_fblock_warning);
+
+TRACE_EVENT(xfs_scrub_incomplete,
+	TP_PROTO(struct xfs_scrub_context *sc, void *ret_ip),
+	TP_ARGS(sc, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(unsigned int, type)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->type = sc->sm->sm_type;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d type %u ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->type,
+		  __entry->ret_ip)
+);
+
+TRACE_EVENT(xfs_scrub_btree_op_error,
+	TP_PROTO(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		 int level, int error, void *ret_ip),
+	TP_ARGS(sc, cur, level, error, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(unsigned int, type)
+		__field(xfs_btnum_t, btnum)
+		__field(int, level)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(int, ptr);
+		__field(int, error)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t fsbno = xfs_scrub_btree_cur_fsbno(cur, level);
+
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->type = sc->sm->sm_type;
+		__entry->btnum = cur->bc_btnum;
+		__entry->level = level;
+		__entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
+		__entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
+		__entry->ptr = cur->bc_ptrs[level];
+		__entry->error = error;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d type %u btnum %d level %d ptr %d agno %u agbno %u error %d ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->type,
+		  __entry->btnum,
+		  __entry->level,
+		  __entry->ptr,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->error,
+		  __entry->ret_ip)
+);
+
+TRACE_EVENT(xfs_scrub_ifork_btree_op_error,
+	TP_PROTO(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		 int level, int error, void *ret_ip),
+	TP_ARGS(sc, cur, level, error, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(int, whichfork)
+		__field(unsigned int, type)
+		__field(xfs_btnum_t, btnum)
+		__field(int, level)
+		__field(int, ptr)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(int, error)
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t fsbno = xfs_scrub_btree_cur_fsbno(cur, level);
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->ino = sc->ip->i_ino;
+		__entry->whichfork = cur->bc_private.b.whichfork;
+		__entry->type = sc->sm->sm_type;
+		__entry->btnum = cur->bc_btnum;
+		__entry->level = level;
+		__entry->ptr = cur->bc_ptrs[level];
+		__entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
+		__entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
+		__entry->error = error;
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d ino %llu fork %d type %u btnum %d level %d ptr %d agno %u agbno %u error %d ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->whichfork,
+		  __entry->type,
+		  __entry->btnum,
+		  __entry->level,
+		  __entry->ptr,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->error,
+		  __entry->ret_ip)
+);
+
+TRACE_EVENT(xfs_scrub_btree_error,
+	TP_PROTO(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		 int level, void *ret_ip),
+	TP_ARGS(sc, cur, level, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(unsigned int, type)
+		__field(xfs_btnum_t, btnum)
+		__field(int, level)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(int, ptr);
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t fsbno = xfs_scrub_btree_cur_fsbno(cur, level);
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->type = sc->sm->sm_type;
+		__entry->btnum = cur->bc_btnum;
+		__entry->level = level;
+		__entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
+		__entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
+		__entry->ptr = cur->bc_ptrs[level];
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d type %u btnum %d level %d ptr %d agno %u agbno %u ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->type,
+		  __entry->btnum,
+		  __entry->level,
+		  __entry->ptr,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->ret_ip)
+);
+
+TRACE_EVENT(xfs_scrub_ifork_btree_error,
+	TP_PROTO(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		 int level, void *ret_ip),
+	TP_ARGS(sc, cur, level, ret_ip),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_ino_t, ino)
+		__field(int, whichfork)
+		__field(unsigned int, type)
+		__field(xfs_btnum_t, btnum)
+		__field(int, level)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(int, ptr);
+		__field(void *, ret_ip)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t fsbno = xfs_scrub_btree_cur_fsbno(cur, level);
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->ino = sc->ip->i_ino;
+		__entry->whichfork = cur->bc_private.b.whichfork;
+		__entry->type = sc->sm->sm_type;
+		__entry->btnum = cur->bc_btnum;
+		__entry->level = level;
+		__entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
+		__entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
+		__entry->ptr = cur->bc_ptrs[level];
+		__entry->ret_ip = ret_ip;
+	),
+	TP_printk("dev %d:%d ino %llu fork %d type %u btnum %d level %d ptr %d agno %u agbno %u ret_ip %pF",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->ino,
+		  __entry->whichfork,
+		  __entry->type,
+		  __entry->btnum,
+		  __entry->level,
+		  __entry->ptr,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->ret_ip)
+);
+
+DECLARE_EVENT_CLASS(xfs_scrub_sbtree_class,
+	TP_PROTO(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur,
+		 int level),
+	TP_ARGS(sc, cur, level),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(int, type)
+		__field(xfs_btnum_t, btnum)
+		__field(xfs_agnumber_t, agno)
+		__field(xfs_agblock_t, bno)
+		__field(int, level)
+		__field(int, nlevels)
+		__field(int, ptr)
+	),
+	TP_fast_assign(
+		xfs_fsblock_t fsbno = xfs_scrub_btree_cur_fsbno(cur, level);
+
+		__entry->dev = sc->mp->m_super->s_dev;
+		__entry->type = sc->sm->sm_type;
+		__entry->btnum = cur->bc_btnum;
+		__entry->agno = XFS_FSB_TO_AGNO(cur->bc_mp, fsbno);
+		__entry->bno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
+		__entry->level = level;
+		__entry->nlevels = cur->bc_nlevels;
+		__entry->ptr = cur->bc_ptrs[level];
+	),
+	TP_printk("dev %d:%d type %u btnum %d agno %u agbno %u level %d nlevels %d ptr %d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->type,
+		  __entry->btnum,
+		  __entry->agno,
+		  __entry->bno,
+		  __entry->level,
+		  __entry->nlevels,
+		  __entry->ptr)
+)
+#define DEFINE_SCRUB_SBTREE_EVENT(name) \
+DEFINE_EVENT(xfs_scrub_sbtree_class, name, \
+	TP_PROTO(struct xfs_scrub_context *sc, struct xfs_btree_cur *cur, \
+		 int level), \
+	TP_ARGS(sc, cur, level))
+
+DEFINE_SCRUB_SBTREE_EVENT(xfs_scrub_btree_rec);
+DEFINE_SCRUB_SBTREE_EVENT(xfs_scrub_btree_key);
+
+#endif /* _TRACE_XFS_SCRUB_TRACE_H */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE scrub/trace
+#include <trace/define_trace.h>
diff --git a/fs/xfs/scrub/xfs_scrub.h b/fs/xfs/scrub/xfs_scrub.h
new file mode 100644
index 000000000000..e00e0eadac6a
--- /dev/null
+++ b/fs/xfs/scrub/xfs_scrub.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2017 Oracle.  All Rights Reserved.
+ *
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#ifndef __XFS_SCRUB_H__
+#define __XFS_SCRUB_H__
+
+#ifndef CONFIG_XFS_ONLINE_SCRUB
+# define xfs_scrub_metadata(ip, sm)	(-ENOTTY)
+#else
+int xfs_scrub_metadata(struct xfs_inode *ip, struct xfs_scrub_metadata *sm);
+#endif /* CONFIG_XFS_ONLINE_SCRUB */
+
+#endif	/* __XFS_SCRUB_H__ */
diff --git a/fs/xfs/xfs.h b/fs/xfs/xfs.h
index 80cd0fd86783..5ff7f228d616 100644
--- a/fs/xfs/xfs.h
+++ b/fs/xfs/xfs.h
@@ -19,7 +19,6 @@
 #define __XFS_H__
 
 #ifdef CONFIG_XFS_DEBUG
-#define STATIC
 #define DEBUG 1
 #define XFS_BUF_LOCK_TRACKING 1
 #endif
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 7034e17535de..3354140de07e 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -247,6 +247,8 @@ xfs_set_mode(struct inode *inode, umode_t mode)
 int
 xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
+	umode_t mode;
+	bool set_mode = false;
 	int error = 0;
 
 	if (!acl)
@@ -257,16 +259,24 @@ xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 		return error;
 
 	if (type == ACL_TYPE_ACCESS) {
-		umode_t mode;
-
 		error = posix_acl_update_mode(inode, &mode, &acl);
 		if (error)
 			return error;
-		error = xfs_set_mode(inode, mode);
-		if (error)
-			return error;
+		set_mode = true;
 	}
 
  set_acl:
-	return __xfs_set_acl(inode, acl, type);
+	error =  __xfs_set_acl(inode, acl, type);
+	if (error)
+		return error;
+
+	/*
+	 * We set the mode after successfully updating the ACL xattr because the
+	 * xattr update can fail at ENOSPC and we don't want to change the mode
+	 * if the ACL update hasn't been applied.
+	 */
+	if (set_mode)
+		error = xfs_set_mode(inode, mode);
+
+	return error;
 }
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 29172609f2a3..a3eeaba156c5 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -343,7 +343,8 @@ xfs_end_io(
 		error = xfs_reflink_end_cow(ip, offset, size);
 		break;
 	case XFS_IO_UNWRITTEN:
-		error = xfs_iomap_write_unwritten(ip, offset, size);
+		/* writeback should never update isize */
+		error = xfs_iomap_write_unwritten(ip, offset, size, false);
 		break;
 	default:
 		ASSERT(!xfs_ioend_is_append(ioend) || ioend->io_append_trans);
@@ -445,6 +446,19 @@ xfs_imap_valid(
 {
 	offset >>= inode->i_blkbits;
 
+	/*
+	 * We have to make sure the cached mapping is within EOF to protect
+	 * against eofblocks trimming on file release leaving us with a stale
+	 * mapping. Otherwise, a page for a subsequent file extending buffered
+	 * write could get picked up by this writeback cycle and written to the
+	 * wrong blocks.
+	 *
+	 * Note that what we really want here is a generic mapping invalidation
+	 * mechanism to protect us from arbitrary extent modifying contexts, not
+	 * just eofblocks.
+	 */
+	xfs_trim_extent_eof(imap, XFS_I(inode));
+
 	return offset >= imap->br_startoff &&
 		offset < imap->br_startoff + imap->br_blockcount;
 }
@@ -734,6 +748,14 @@ xfs_vm_invalidatepage(
 {
 	trace_xfs_invalidatepage(page->mapping->host, page, offset,
 				 length);
+
+	/*
+	 * If we are invalidating the entire page, clear the dirty state from it
+	 * so that we can check for attempts to release dirty cached pages in
+	 * xfs_vm_releasepage().
+	 */
+	if (offset == 0 && length >= PAGE_SIZE)
+		cancel_dirty_page(page);
 	block_invalidatepage(page, offset, length);
 }
 
@@ -1189,25 +1211,27 @@ xfs_vm_releasepage(
 	 * mm accommodates an old ext3 case where clean pages might not have had
 	 * the dirty bit cleared. Thus, it can send actual dirty pages to
 	 * ->releasepage() via shrink_active_list(). Conversely,
-	 * block_invalidatepage() can send pages that are still marked dirty
-	 * but otherwise have invalidated buffers.
+	 * block_invalidatepage() can send pages that are still marked dirty but
+	 * otherwise have invalidated buffers.
 	 *
 	 * We want to release the latter to avoid unnecessary buildup of the
-	 * LRU, skip the former and warn if we've left any lingering
-	 * delalloc/unwritten buffers on clean pages. Skip pages with delalloc
-	 * or unwritten buffers and warn if the page is not dirty. Otherwise
-	 * try to release the buffers.
+	 * LRU, so xfs_vm_invalidatepage() clears the page dirty flag on pages
+	 * that are entirely invalidated and need to be released.  Hence the
+	 * only time we should get dirty pages here is through
+	 * shrink_active_list() and so we can simply skip those now.
+	 *
+	 * warn if we've left any lingering delalloc/unwritten buffers on clean
+	 * or invalidated pages we are about to release.
 	 */
+	if (PageDirty(page))
+		return 0;
+
 	xfs_count_page_state(page, &delalloc, &unwritten);
 
-	if (delalloc) {
-		WARN_ON_ONCE(!PageDirty(page));
+	if (WARN_ON_ONCE(delalloc))
 		return 0;
-	}
-	if (unwritten) {
-		WARN_ON_ONCE(!PageDirty(page));
+	if (WARN_ON_ONCE(unwritten))
 		return 0;
-	}
 
 	return try_to_free_buffers(page);
 }
diff --git a/fs/xfs/xfs_attr.h b/fs/xfs/xfs_attr.h
index 5d5a5e277f35..d07bf27451c9 100644
--- a/fs/xfs/xfs_attr.h
+++ b/fs/xfs/xfs_attr.h
@@ -48,6 +48,8 @@ struct xfs_attr_list_context;
 #define ATTR_KERNOTIME	0x1000	/* [kernel] don't update inode timestamps */
 #define ATTR_KERNOVAL	0x2000	/* [kernel] get attr size only, not value */
 
+#define ATTR_INCOMPLETE	0x4000	/* [kernel] return INCOMPLETE attr keys */
+
 #define XFS_ATTR_FLAGS \
 	{ ATTR_DONTFOLLOW, 	"DONTFOLLOW" }, \
 	{ ATTR_ROOT,		"ROOT" }, \
@@ -56,7 +58,8 @@ struct xfs_attr_list_context;
 	{ ATTR_CREATE,		"CREATE" }, \
 	{ ATTR_REPLACE,		"REPLACE" }, \
 	{ ATTR_KERNOTIME,	"KERNOTIME" }, \
-	{ ATTR_KERNOVAL,	"KERNOVAL" }
+	{ ATTR_KERNOVAL,	"KERNOVAL" }, \
+	{ ATTR_INCOMPLETE,	"INCOMPLETE" }
 
 /*
  * The maximum size (into the kernel or returned from the kernel) of an
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index ebd66b19fbfc..52818ea2eb50 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -251,47 +251,44 @@ xfs_attr3_node_inactive(
 		 * traversal of the tree so we may deal with many blocks
 		 * before we come back to this one.
 		 */
-		error = xfs_da3_node_read(*trans, dp, child_fsb, -2, &child_bp,
-						XFS_ATTR_FORK);
+		error = xfs_da3_node_read(*trans, dp, child_fsb, -1, &child_bp,
+					  XFS_ATTR_FORK);
 		if (error)
 			return error;
-		if (child_bp) {
-						/* save for re-read later */
-			child_blkno = XFS_BUF_ADDR(child_bp);
 
-			/*
-			 * Invalidate the subtree, however we have to.
-			 */
-			info = child_bp->b_addr;
-			switch (info->magic) {
-			case cpu_to_be16(XFS_DA_NODE_MAGIC):
-			case cpu_to_be16(XFS_DA3_NODE_MAGIC):
-				error = xfs_attr3_node_inactive(trans, dp,
-							child_bp, level + 1);
-				break;
-			case cpu_to_be16(XFS_ATTR_LEAF_MAGIC):
-			case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC):
-				error = xfs_attr3_leaf_inactive(trans, dp,
-							child_bp);
-				break;
-			default:
-				error = -EIO;
-				xfs_trans_brelse(*trans, child_bp);
-				break;
-			}
-			if (error)
-				return error;
+		/* save for re-read later */
+		child_blkno = XFS_BUF_ADDR(child_bp);
 
-			/*
-			 * Remove the subsidiary block from the cache
-			 * and from the log.
-			 */
-			error = xfs_da_get_buf(*trans, dp, 0, child_blkno,
-				&child_bp, XFS_ATTR_FORK);
-			if (error)
-				return error;
-			xfs_trans_binval(*trans, child_bp);
+		/*
+		 * Invalidate the subtree, however we have to.
+		 */
+		info = child_bp->b_addr;
+		switch (info->magic) {
+		case cpu_to_be16(XFS_DA_NODE_MAGIC):
+		case cpu_to_be16(XFS_DA3_NODE_MAGIC):
+			error = xfs_attr3_node_inactive(trans, dp, child_bp,
+							level + 1);
+			break;
+		case cpu_to_be16(XFS_ATTR_LEAF_MAGIC):
+		case cpu_to_be16(XFS_ATTR3_LEAF_MAGIC):
+			error = xfs_attr3_leaf_inactive(trans, dp, child_bp);
+			break;
+		default:
+			error = -EIO;
+			xfs_trans_brelse(*trans, child_bp);
+			break;
 		}
+		if (error)
+			return error;
+
+		/*
+		 * Remove the subsidiary block from the cache and from the log.
+		 */
+		error = xfs_da_get_buf(*trans, dp, 0, child_blkno, &child_bp,
+				       XFS_ATTR_FORK);
+		if (error)
+			return error;
+		xfs_trans_binval(*trans, child_bp);
 
 		/*
 		 * If we're not done, re-read the parent to get the next
@@ -302,6 +299,8 @@ xfs_attr3_node_inactive(
 						 &bp, XFS_ATTR_FORK);
 			if (error)
 				return error;
+			node = bp->b_addr;
+			btree = dp->d_ops->node_tree_p(node);
 			child_fsb = be32_to_cpu(btree[i + 1].before);
 			xfs_trans_brelse(*trans, bp);
 		}
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index 7740c8a5e736..3e59a348ea71 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -204,19 +204,103 @@ xfs_attr_shortform_list(xfs_attr_list_context_t *context)
 	return 0;
 }
 
+/*
+ * We didn't find the block & hash mentioned in the cursor state, so
+ * walk down the attr btree looking for the hash.
+ */
 STATIC int
-xfs_attr_node_list(xfs_attr_list_context_t *context)
+xfs_attr_node_list_lookup(
+	struct xfs_attr_list_context	*context,
+	struct attrlist_cursor_kern	*cursor,
+	struct xfs_buf			**pbp)
 {
-	attrlist_cursor_kern_t *cursor;
-	xfs_attr_leafblock_t *leaf;
-	xfs_da_intnode_t *node;
-	struct xfs_attr3_icleaf_hdr leafhdr;
-	struct xfs_da3_icnode_hdr nodehdr;
-	struct xfs_da_node_entry *btree;
-	int error, i;
-	struct xfs_buf *bp;
-	struct xfs_inode	*dp = context->dp;
-	struct xfs_mount	*mp = dp->i_mount;
+	struct xfs_da3_icnode_hdr	nodehdr;
+	struct xfs_da_intnode		*node;
+	struct xfs_da_node_entry	*btree;
+	struct xfs_inode		*dp = context->dp;
+	struct xfs_mount		*mp = dp->i_mount;
+	struct xfs_trans		*tp = context->tp;
+	struct xfs_buf			*bp;
+	int				i;
+	int				error = 0;
+	unsigned int			expected_level = 0;
+	uint16_t			magic;
+
+	ASSERT(*pbp == NULL);
+	cursor->blkno = 0;
+	for (;;) {
+		error = xfs_da3_node_read(tp, dp, cursor->blkno, -1, &bp,
+				XFS_ATTR_FORK);
+		if (error)
+			return error;
+		node = bp->b_addr;
+		magic = be16_to_cpu(node->hdr.info.magic);
+		if (magic == XFS_ATTR_LEAF_MAGIC ||
+		    magic == XFS_ATTR3_LEAF_MAGIC)
+			break;
+		if (magic != XFS_DA_NODE_MAGIC &&
+		    magic != XFS_DA3_NODE_MAGIC) {
+			XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
+					node);
+			goto out_corruptbuf;
+		}
+
+		dp->d_ops->node_hdr_from_disk(&nodehdr, node);
+
+		/* Tree taller than we can handle; bail out! */
+		if (nodehdr.level >= XFS_DA_NODE_MAXDEPTH)
+			goto out_corruptbuf;
+
+		/* Check the level from the root node. */
+		if (cursor->blkno == 0)
+			expected_level = nodehdr.level - 1;
+		else if (expected_level != nodehdr.level)
+			goto out_corruptbuf;
+		else
+			expected_level--;
+
+		btree = dp->d_ops->node_tree_p(node);
+		for (i = 0; i < nodehdr.count; btree++, i++) {
+			if (cursor->hashval <= be32_to_cpu(btree->hashval)) {
+				cursor->blkno = be32_to_cpu(btree->before);
+				trace_xfs_attr_list_node_descend(context,
+						btree);
+				break;
+			}
+		}
+		xfs_trans_brelse(tp, bp);
+
+		if (i == nodehdr.count)
+			return 0;
+
+		/* We can't point back to the root. */
+		if (cursor->blkno == 0)
+			return -EFSCORRUPTED;
+	}
+
+	if (expected_level != 0)
+		goto out_corruptbuf;
+
+	*pbp = bp;
+	return 0;
+
+out_corruptbuf:
+	xfs_trans_brelse(tp, bp);
+	return -EFSCORRUPTED;
+}
+
+STATIC int
+xfs_attr_node_list(
+	struct xfs_attr_list_context	*context)
+{
+	struct xfs_attr3_icleaf_hdr	leafhdr;
+	struct attrlist_cursor_kern	*cursor;
+	struct xfs_attr_leafblock	*leaf;
+	struct xfs_da_intnode		*node;
+	struct xfs_buf			*bp;
+	struct xfs_inode		*dp = context->dp;
+	struct xfs_mount		*mp = dp->i_mount;
+	int				error;
 
 	trace_xfs_attr_node_list(context);
 
@@ -277,47 +361,9 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 	 * Note that start of node block is same as start of leaf block.
 	 */
 	if (bp == NULL) {
-		cursor->blkno = 0;
-		for (;;) {
-			uint16_t magic;
-
-			error = xfs_da3_node_read(context->tp, dp,
-						      cursor->blkno, -1, &bp,
-						      XFS_ATTR_FORK);
-			if (error)
-				return error;
-			node = bp->b_addr;
-			magic = be16_to_cpu(node->hdr.info.magic);
-			if (magic == XFS_ATTR_LEAF_MAGIC ||
-			    magic == XFS_ATTR3_LEAF_MAGIC)
-				break;
-			if (magic != XFS_DA_NODE_MAGIC &&
-			    magic != XFS_DA3_NODE_MAGIC) {
-				XFS_CORRUPTION_ERROR("xfs_attr_node_list(3)",
-						     XFS_ERRLEVEL_LOW,
-						     context->dp->i_mount,
-						     node);
-				xfs_trans_brelse(context->tp, bp);
-				return -EFSCORRUPTED;
-			}
-
-			dp->d_ops->node_hdr_from_disk(&nodehdr, node);
-			btree = dp->d_ops->node_tree_p(node);
-			for (i = 0; i < nodehdr.count; btree++, i++) {
-				if (cursor->hashval
-						<= be32_to_cpu(btree->hashval)) {
-					cursor->blkno = be32_to_cpu(btree->before);
-					trace_xfs_attr_list_node_descend(context,
-									 btree);
-					break;
-				}
-			}
-			if (i == nodehdr.count) {
-				xfs_trans_brelse(context->tp, bp);
-				return 0;
-			}
-			xfs_trans_brelse(context->tp, bp);
-		}
+		error = xfs_attr_node_list_lookup(context, cursor, &bp);
+		if (error || !bp)
+			return error;
 	}
 	ASSERT(bp != NULL);
 
@@ -407,7 +453,8 @@ xfs_attr3_leaf_list_int(
 			cursor->offset = 0;
 		}
 
-		if (entry->flags & XFS_ATTR_INCOMPLETE)
+		if ((entry->flags & XFS_ATTR_INCOMPLETE) &&
+		    !(context->flags & ATTR_INCOMPLETE))
 			continue;		/* skip incomplete entries */
 
 		if (entry->flags & XFS_ATTR_LOCAL) {
@@ -499,8 +546,8 @@ xfs_attr_list_int(
 #define	ATTR_ENTBASESIZE		/* minimum bytes used by an attr */ \
 	(((struct attrlist_ent *) 0)->a_name - (char *) 0)
 #define	ATTR_ENTSIZE(namelen)		/* actual bytes used by an attr */ \
-	((ATTR_ENTBASESIZE + (namelen) + 1 + sizeof(u_int32_t)-1) \
-	 & ~(sizeof(u_int32_t)-1))
+	((ATTR_ENTBASESIZE + (namelen) + 1 + sizeof(uint32_t)-1) \
+	 & ~(sizeof(uint32_t)-1))
 
 /*
  * Format an attribute and copy it out to the user's buffer.
@@ -583,6 +630,10 @@ xfs_attr_list(
 	    (cursor->hashval || cursor->blkno || cursor->offset))
 		return -EINVAL;
 
+	/* Only internal consumers can retrieve incomplete attrs. */
+	if (flags & ATTR_INCOMPLETE)
+		return -EINVAL;
+
 	/*
 	 * Check for a properly aligned buffer.
 	 */
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index cd9a5400ba4f..6d37ab43195f 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -84,6 +84,7 @@ xfs_zero_extent(
 		GFP_NOFS, 0);
 }
 
+#ifdef CONFIG_XFS_RT
 int
 xfs_bmap_rtalloc(
 	struct xfs_bmalloca	*ap)	/* bmap alloc argument struct */
@@ -190,6 +191,7 @@ xfs_bmap_rtalloc(
 	}
 	return 0;
 }
+#endif /* CONFIG_XFS_RT */
 
 /*
  * Check if the endoff is outside the last extent. If so the caller will grow
@@ -227,15 +229,17 @@ xfs_bmap_count_leaves(
 	struct xfs_ifork	*ifp,
 	xfs_filblks_t		*count)
 {
+	struct xfs_iext_cursor	icur;
 	struct xfs_bmbt_irec	got;
-	xfs_extnum_t		numrecs = 0, i = 0;
+	xfs_extnum_t		numrecs = 0;
 
-	while (xfs_iext_get_extent(ifp, i++, &got)) {
+	for_each_xfs_iext(ifp, &icur, &got) {
 		if (!isnullstartblock(got.br_startblock)) {
 			*count += got.br_blockcount;
 			numrecs++;
 		}
 	}
+
 	return numrecs;
 }
 
@@ -403,125 +407,103 @@ xfs_bmap_count_blocks(
 	return 0;
 }
 
-/*
- * returns 1 for success, 0 if we failed to map the extent.
- */
-STATIC int
-xfs_getbmapx_fix_eof_hole(
-	xfs_inode_t		*ip,		/* xfs incore inode pointer */
-	int			whichfork,
-	struct getbmapx		*out,		/* output structure */
-	int			prealloced,	/* this is a file with
-						 * preallocated data space */
-	int64_t			end,		/* last block requested */
-	xfs_fsblock_t		startblock,
-	bool			moretocome)
+static int
+xfs_getbmap_report_one(
+	struct xfs_inode	*ip,
+	struct getbmapx		*bmv,
+	struct kgetbmap		*out,
+	int64_t			bmv_end,
+	struct xfs_bmbt_irec	*got)
 {
-	int64_t			fixlen;
-	xfs_mount_t		*mp;		/* file system mount point */
-	xfs_ifork_t		*ifp;		/* inode fork pointer */
-	xfs_extnum_t		lastx;		/* last extent pointer */
-	xfs_fileoff_t		fileblock;
-
-	if (startblock == HOLESTARTBLOCK) {
-		mp = ip->i_mount;
-		out->bmv_block = -1;
-		fixlen = XFS_FSB_TO_BB(mp, XFS_B_TO_FSB(mp, XFS_ISIZE(ip)));
-		fixlen -= out->bmv_offset;
-		if (prealloced && out->bmv_offset + out->bmv_length == end) {
-			/* Came to hole at EOF. Trim it. */
-			if (fixlen <= 0)
-				return 0;
-			out->bmv_length = fixlen;
-		}
+	struct kgetbmap		*p = out + bmv->bmv_entries;
+	bool			shared = false, trimmed = false;
+	int			error;
+
+	error = xfs_reflink_trim_around_shared(ip, got, &shared, &trimmed);
+	if (error)
+		return error;
+
+	if (isnullstartblock(got->br_startblock) ||
+	    got->br_startblock == DELAYSTARTBLOCK) {
+		/*
+		 * Delalloc extents that start beyond EOF can occur due to
+		 * speculative EOF allocation when the delalloc extent is larger
+		 * than the largest freespace extent at conversion time.  These
+		 * extents cannot be converted by data writeback, so can exist
+		 * here even if we are not supposed to be finding delalloc
+		 * extents.
+		 */
+		if (got->br_startoff < XFS_B_TO_FSB(ip->i_mount, XFS_ISIZE(ip)))
+			ASSERT((bmv->bmv_iflags & BMV_IF_DELALLOC) != 0);
+
+		p->bmv_oflags |= BMV_OF_DELALLOC;
+		p->bmv_block = -2;
 	} else {
-		if (startblock == DELAYSTARTBLOCK)
-			out->bmv_block = -2;
-		else
-			out->bmv_block = xfs_fsb_to_db(ip, startblock);
-		fileblock = XFS_BB_TO_FSB(ip->i_mount, out->bmv_offset);
-		ifp = XFS_IFORK_PTR(ip, whichfork);
-		if (!moretocome &&
-		    xfs_iext_bno_to_ext(ifp, fileblock, &lastx) &&
-		   (lastx == xfs_iext_count(ifp) - 1))
-			out->bmv_oflags |= BMV_OF_LAST;
+		p->bmv_block = xfs_fsb_to_db(ip, got->br_startblock);
 	}
 
-	return 1;
+	if (got->br_state == XFS_EXT_UNWRITTEN &&
+	    (bmv->bmv_iflags & BMV_IF_PREALLOC))
+		p->bmv_oflags |= BMV_OF_PREALLOC;
+
+	if (shared)
+		p->bmv_oflags |= BMV_OF_SHARED;
+
+	p->bmv_offset = XFS_FSB_TO_BB(ip->i_mount, got->br_startoff);
+	p->bmv_length = XFS_FSB_TO_BB(ip->i_mount, got->br_blockcount);
+
+	bmv->bmv_offset = p->bmv_offset + p->bmv_length;
+	bmv->bmv_length = max(0LL, bmv_end - bmv->bmv_offset);
+	bmv->bmv_entries++;
+	return 0;
 }
 
-/* Adjust the reported bmap around shared/unshared extent transitions. */
-STATIC int
-xfs_getbmap_adjust_shared(
-	struct xfs_inode		*ip,
-	int				whichfork,
-	struct xfs_bmbt_irec		*map,
-	struct getbmapx			*out,
-	struct xfs_bmbt_irec		*next_map)
+static void
+xfs_getbmap_report_hole(
+	struct xfs_inode	*ip,
+	struct getbmapx		*bmv,
+	struct kgetbmap		*out,
+	int64_t			bmv_end,
+	xfs_fileoff_t		bno,
+	xfs_fileoff_t		end)
 {
-	struct xfs_mount		*mp = ip->i_mount;
-	xfs_agnumber_t			agno;
-	xfs_agblock_t			agbno;
-	xfs_agblock_t			ebno;
-	xfs_extlen_t			elen;
-	xfs_extlen_t			nlen;
-	int				error;
+	struct kgetbmap		*p = out + bmv->bmv_entries;
 
-	next_map->br_startblock = NULLFSBLOCK;
-	next_map->br_startoff = NULLFILEOFF;
-	next_map->br_blockcount = 0;
+	if (bmv->bmv_iflags & BMV_IF_NO_HOLES)
+		return;
 
-	/* Only written data blocks can be shared. */
-	if (!xfs_is_reflink_inode(ip) ||
-	    whichfork != XFS_DATA_FORK ||
-	    !xfs_bmap_is_real_extent(map))
-		return 0;
+	p->bmv_block = -1;
+	p->bmv_offset = XFS_FSB_TO_BB(ip->i_mount, bno);
+	p->bmv_length = XFS_FSB_TO_BB(ip->i_mount, end - bno);
 
-	agno = XFS_FSB_TO_AGNO(mp, map->br_startblock);
-	agbno = XFS_FSB_TO_AGBNO(mp, map->br_startblock);
-	error = xfs_reflink_find_shared(mp, NULL, agno, agbno,
-			map->br_blockcount, &ebno, &elen, true);
-	if (error)
-		return error;
+	bmv->bmv_offset = p->bmv_offset + p->bmv_length;
+	bmv->bmv_length = max(0LL, bmv_end - bmv->bmv_offset);
+	bmv->bmv_entries++;
+}
 
-	if (ebno == NULLAGBLOCK) {
-		/* No shared blocks at all. */
-		return 0;
-	} else if (agbno == ebno) {
-		/*
-		 * Shared extent at (agbno, elen).  Shrink the reported
-		 * extent length and prepare to move the start of map[i]
-		 * to agbno+elen, with the aim of (re)formatting the new
-		 * map[i] the next time through the inner loop.
-		 */
-		out->bmv_length = XFS_FSB_TO_BB(mp, elen);
-		out->bmv_oflags |= BMV_OF_SHARED;
-		if (elen != map->br_blockcount) {
-			*next_map = *map;
-			next_map->br_startblock += elen;
-			next_map->br_startoff += elen;
-			next_map->br_blockcount -= elen;
-		}
-		map->br_blockcount -= elen;
-	} else {
-		/*
-		 * There's an unshared extent (agbno, ebno - agbno)
-		 * followed by shared extent at (ebno, elen).  Shrink
-		 * the reported extent length to cover only the unshared
-		 * extent and prepare to move up the start of map[i] to
-		 * ebno, with the aim of (re)formatting the new map[i]
-		 * the next time through the inner loop.
-		 */
-		*next_map = *map;
-		nlen = ebno - agbno;
-		out->bmv_length = XFS_FSB_TO_BB(mp, nlen);
-		next_map->br_startblock += nlen;
-		next_map->br_startoff += nlen;
-		next_map->br_blockcount -= nlen;
-		map->br_blockcount -= nlen;
-	}
+static inline bool
+xfs_getbmap_full(
+	struct getbmapx		*bmv)
+{
+	return bmv->bmv_length == 0 || bmv->bmv_entries >= bmv->bmv_count - 1;
+}
 
-	return 0;
+static bool
+xfs_getbmap_next_rec(
+	struct xfs_bmbt_irec	*rec,
+	xfs_fileoff_t		total_end)
+{
+	xfs_fileoff_t		end = rec->br_startoff + rec->br_blockcount;
+
+	if (end == total_end)
+		return false;
+
+	rec->br_startoff += rec->br_blockcount;
+	if (!isnullstartblock(rec->br_startblock) &&
+	    rec->br_startblock != DELAYSTARTBLOCK)
+		rec->br_startblock += rec->br_blockcount;
+	rec->br_blockcount = total_end - end;
+	return true;
 }
 
 /*
@@ -533,33 +515,22 @@ xfs_getbmap_adjust_shared(
  */
 int						/* error code */
 xfs_getbmap(
-	xfs_inode_t		*ip,
+	struct xfs_inode	*ip,
 	struct getbmapx		*bmv,		/* user bmap structure */
-	xfs_bmap_format_t	formatter,	/* format to user */
-	void			*arg)		/* formatter arg */
+	struct kgetbmap		*out)
 {
-	int64_t			bmvend;		/* last block requested */
-	int			error = 0;	/* return value */
-	int64_t			fixlen;		/* length for -1 case */
-	int			i;		/* extent number */
-	int			lock;		/* lock state */
-	xfs_bmbt_irec_t		*map;		/* buffer for user's data */
-	xfs_mount_t		*mp;		/* file system mount point */
-	int			nex;		/* # of user extents can do */
-	int			subnex;		/* # of bmapi's can do */
-	int			nmap;		/* number of map entries */
-	struct getbmapx		*out;		/* output structure */
-	int			whichfork;	/* data or attr fork */
-	int			prealloced;	/* this is a file with
-						 * preallocated data space */
-	int			iflags;		/* interface flags */
-	int			bmapi_flags;	/* flags for xfs_bmapi */
-	int			cur_ext = 0;
-	struct xfs_bmbt_irec	inject_map;
-
-	mp = ip->i_mount;
-	iflags = bmv->bmv_iflags;
-
+	struct xfs_mount	*mp = ip->i_mount;
+	int			iflags = bmv->bmv_iflags;
+	int			whichfork, lock, error = 0;
+	int64_t			bmv_end, max_len;
+	xfs_fileoff_t		bno, first_bno;
+	struct xfs_ifork	*ifp;
+	struct xfs_bmbt_irec	got, rec;
+	xfs_filblks_t		len;
+	struct xfs_iext_cursor	icur;
+
+	if (bmv->bmv_iflags & ~BMV_IF_VALID)
+		return -EINVAL;
 #ifndef DEBUG
 	/* Only allow CoW fork queries if we're debugging. */
 	if (iflags & BMV_IF_COWFORK)
@@ -568,89 +539,42 @@ xfs_getbmap(
 	if ((iflags & BMV_IF_ATTRFORK) && (iflags & BMV_IF_COWFORK))
 		return -EINVAL;
 
+	if (bmv->bmv_length < -1)
+		return -EINVAL;
+	bmv->bmv_entries = 0;
+	if (bmv->bmv_length == 0)
+		return 0;
+
 	if (iflags & BMV_IF_ATTRFORK)
 		whichfork = XFS_ATTR_FORK;
 	else if (iflags & BMV_IF_COWFORK)
 		whichfork = XFS_COW_FORK;
 	else
 		whichfork = XFS_DATA_FORK;
+	ifp = XFS_IFORK_PTR(ip, whichfork);
 
+	xfs_ilock(ip, XFS_IOLOCK_SHARED);
 	switch (whichfork) {
 	case XFS_ATTR_FORK:
-		if (XFS_IFORK_Q(ip)) {
-			if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS &&
-			    ip->i_d.di_aformat != XFS_DINODE_FMT_BTREE &&
-			    ip->i_d.di_aformat != XFS_DINODE_FMT_LOCAL)
-				return -EINVAL;
-		} else if (unlikely(
-			   ip->i_d.di_aformat != 0 &&
-			   ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS)) {
-			XFS_ERROR_REPORT("xfs_getbmap", XFS_ERRLEVEL_LOW,
-					 ip->i_mount);
-			return -EFSCORRUPTED;
-		}
+		if (!XFS_IFORK_Q(ip))
+			goto out_unlock_iolock;
 
-		prealloced = 0;
-		fixlen = 1LL << 32;
+		max_len = 1LL << 32;
+		lock = xfs_ilock_attr_map_shared(ip);
 		break;
 	case XFS_COW_FORK:
-		if (ip->i_cformat != XFS_DINODE_FMT_EXTENTS)
-			return -EINVAL;
+		/* No CoW fork? Just return */
+		if (!ifp)
+			goto out_unlock_iolock;
 
-		if (xfs_get_cowextsz_hint(ip)) {
-			prealloced = 1;
-			fixlen = mp->m_super->s_maxbytes;
-		} else {
-			prealloced = 0;
-			fixlen = XFS_ISIZE(ip);
-		}
-		break;
-	default:
-		/* Local format data forks report no extents. */
-		if (ip->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
-			bmv->bmv_entries = 0;
-			return 0;
-		}
-		if (ip->i_d.di_format != XFS_DINODE_FMT_EXTENTS &&
-		    ip->i_d.di_format != XFS_DINODE_FMT_BTREE)
-			return -EINVAL;
+		if (xfs_get_cowextsz_hint(ip))
+			max_len = mp->m_super->s_maxbytes;
+		else
+			max_len = XFS_ISIZE(ip);
 
-		if (xfs_get_extsz_hint(ip) ||
-		    ip->i_d.di_flags & (XFS_DIFLAG_PREALLOC|XFS_DIFLAG_APPEND)){
-			prealloced = 1;
-			fixlen = mp->m_super->s_maxbytes;
-		} else {
-			prealloced = 0;
-			fixlen = XFS_ISIZE(ip);
-		}
+		lock = XFS_ILOCK_SHARED;
+		xfs_ilock(ip, lock);
 		break;
-	}
-
-	if (bmv->bmv_length == -1) {
-		fixlen = XFS_FSB_TO_BB(mp, XFS_B_TO_FSB(mp, fixlen));
-		bmv->bmv_length =
-			max_t(int64_t, fixlen - bmv->bmv_offset, 0);
-	} else if (bmv->bmv_length == 0) {
-		bmv->bmv_entries = 0;
-		return 0;
-	} else if (bmv->bmv_length < 0) {
-		return -EINVAL;
-	}
-
-	nex = bmv->bmv_count - 1;
-	if (nex <= 0)
-		return -EINVAL;
-	bmvend = bmv->bmv_offset + bmv->bmv_length;
-
-
-	if (bmv->bmv_count > ULONG_MAX / sizeof(struct getbmapx))
-		return -ENOMEM;
-	out = kmem_zalloc_large(bmv->bmv_count * sizeof(struct getbmapx), 0);
-	if (!out)
-		return -ENOMEM;
-
-	xfs_ilock(ip, XFS_IOLOCK_SHARED);
-	switch (whichfork) {
 	case XFS_DATA_FORK:
 		if (!(iflags & BMV_IF_DELALLOC) &&
 		    (ip->i_delayed_blks || XFS_ISIZE(ip) > ip->i_d.di_size)) {
@@ -668,154 +592,105 @@ xfs_getbmap(
 			 */
 		}
 
+		if (xfs_get_extsz_hint(ip) ||
+		    (ip->i_d.di_flags &
+		     (XFS_DIFLAG_PREALLOC | XFS_DIFLAG_APPEND)))
+			max_len = mp->m_super->s_maxbytes;
+		else
+			max_len = XFS_ISIZE(ip);
+
 		lock = xfs_ilock_data_map_shared(ip);
 		break;
-	case XFS_COW_FORK:
-		lock = XFS_ILOCK_SHARED;
-		xfs_ilock(ip, lock);
-		break;
-	case XFS_ATTR_FORK:
-		lock = xfs_ilock_attr_map_shared(ip);
-		break;
 	}
 
-	/*
-	 * Don't let nex be bigger than the number of extents
-	 * we can have assuming alternating holes and real extents.
-	 */
-	if (nex > XFS_IFORK_NEXTENTS(ip, whichfork) * 2 + 1)
-		nex = XFS_IFORK_NEXTENTS(ip, whichfork) * 2 + 1;
-
-	bmapi_flags = xfs_bmapi_aflag(whichfork);
-	if (!(iflags & BMV_IF_PREALLOC))
-		bmapi_flags |= XFS_BMAPI_IGSTATE;
-
-	/*
-	 * Allocate enough space to handle "subnex" maps at a time.
-	 */
-	error = -ENOMEM;
-	subnex = 16;
-	map = kmem_alloc(subnex * sizeof(*map), KM_MAYFAIL | KM_NOFS);
-	if (!map)
+	switch (XFS_IFORK_FORMAT(ip, whichfork)) {
+	case XFS_DINODE_FMT_EXTENTS:
+	case XFS_DINODE_FMT_BTREE:
+		break;
+	case XFS_DINODE_FMT_LOCAL:
+		/* Local format inode forks report no extents. */
 		goto out_unlock_ilock;
+	default:
+		error = -EINVAL;
+		goto out_unlock_ilock;
+	}
 
-	bmv->bmv_entries = 0;
-
-	if (XFS_IFORK_NEXTENTS(ip, whichfork) == 0 &&
-	    (whichfork == XFS_ATTR_FORK || !(iflags & BMV_IF_DELALLOC))) {
-		error = 0;
-		goto out_free_map;
+	if (bmv->bmv_length == -1) {
+		max_len = XFS_FSB_TO_BB(mp, XFS_B_TO_FSB(mp, max_len));
+		bmv->bmv_length = max(0LL, max_len - bmv->bmv_offset);
 	}
 
-	do {
-		nmap = (nex> subnex) ? subnex : nex;
-		error = xfs_bmapi_read(ip, XFS_BB_TO_FSBT(mp, bmv->bmv_offset),
-				       XFS_BB_TO_FSB(mp, bmv->bmv_length),
-				       map, &nmap, bmapi_flags);
-		if (error)
-			goto out_free_map;
-		ASSERT(nmap <= subnex);
-
-		for (i = 0; i < nmap && bmv->bmv_length &&
-				cur_ext < bmv->bmv_count - 1; i++) {
-			out[cur_ext].bmv_oflags = 0;
-			if (map[i].br_state == XFS_EXT_UNWRITTEN)
-				out[cur_ext].bmv_oflags |= BMV_OF_PREALLOC;
-			else if (map[i].br_startblock == DELAYSTARTBLOCK)
-				out[cur_ext].bmv_oflags |= BMV_OF_DELALLOC;
-			out[cur_ext].bmv_offset =
-				XFS_FSB_TO_BB(mp, map[i].br_startoff);
-			out[cur_ext].bmv_length =
-				XFS_FSB_TO_BB(mp, map[i].br_blockcount);
-			out[cur_ext].bmv_unused1 = 0;
-			out[cur_ext].bmv_unused2 = 0;
+	bmv_end = bmv->bmv_offset + bmv->bmv_length;
 
-			/*
-			 * delayed allocation extents that start beyond EOF can
-			 * occur due to speculative EOF allocation when the
-			 * delalloc extent is larger than the largest freespace
-			 * extent at conversion time. These extents cannot be
-			 * converted by data writeback, so can exist here even
-			 * if we are not supposed to be finding delalloc
-			 * extents.
-			 */
-			if (map[i].br_startblock == DELAYSTARTBLOCK &&
-			    map[i].br_startoff < XFS_B_TO_FSB(mp, XFS_ISIZE(ip)))
-				ASSERT((iflags & BMV_IF_DELALLOC) != 0);
-
-                        if (map[i].br_startblock == HOLESTARTBLOCK &&
-			    whichfork == XFS_ATTR_FORK) {
-				/* came to the end of attribute fork */
-				out[cur_ext].bmv_oflags |= BMV_OF_LAST;
-				goto out_free_map;
-			}
+	first_bno = bno = XFS_BB_TO_FSBT(mp, bmv->bmv_offset);
+	len = XFS_BB_TO_FSB(mp, bmv->bmv_length);
 
-			/* Is this a shared block? */
-			error = xfs_getbmap_adjust_shared(ip, whichfork,
-					&map[i], &out[cur_ext], &inject_map);
-			if (error)
-				goto out_free_map;
+	if (!(ifp->if_flags & XFS_IFEXTENTS)) {
+		error = xfs_iread_extents(NULL, ip, whichfork);
+		if (error)
+			goto out_unlock_ilock;
+	}
 
-			if (!xfs_getbmapx_fix_eof_hole(ip, whichfork,
-					&out[cur_ext], prealloced, bmvend,
-					map[i].br_startblock,
-					inject_map.br_startblock != NULLFSBLOCK))
-				goto out_free_map;
+	if (!xfs_iext_lookup_extent(ip, ifp, bno, &icur, &got)) {
+		/*
+		 * Report a whole-file hole if the delalloc flag is set to
+		 * stay compatible with the old implementation.
+		 */
+		if (iflags & BMV_IF_DELALLOC)
+			xfs_getbmap_report_hole(ip, bmv, out, bmv_end, bno,
+					XFS_B_TO_FSB(mp, XFS_ISIZE(ip)));
+		goto out_unlock_ilock;
+	}
 
-			bmv->bmv_offset =
-				out[cur_ext].bmv_offset +
-				out[cur_ext].bmv_length;
-			bmv->bmv_length =
-				max_t(int64_t, 0, bmvend - bmv->bmv_offset);
+	while (!xfs_getbmap_full(bmv)) {
+		xfs_trim_extent(&got, first_bno, len);
 
-			/*
-			 * In case we don't want to return the hole,
-			 * don't increase cur_ext so that we can reuse
-			 * it in the next loop.
-			 */
-			if ((iflags & BMV_IF_NO_HOLES) &&
-			    map[i].br_startblock == HOLESTARTBLOCK) {
-				memset(&out[cur_ext], 0, sizeof(out[cur_ext]));
-				continue;
-			}
+		/*
+		 * Report an entry for a hole if this extent doesn't directly
+		 * follow the previous one.
+		 */
+		if (got.br_startoff > bno) {
+			xfs_getbmap_report_hole(ip, bmv, out, bmv_end, bno,
+					got.br_startoff);
+			if (xfs_getbmap_full(bmv))
+				break;
+		}
 
-			/*
-			 * In order to report shared extents accurately,
-			 * we report each distinct shared/unshared part
-			 * of a single bmbt record using multiple bmap
-			 * extents.  To make that happen, we iterate the
-			 * same map array item multiple times, each
-			 * time trimming out the subextent that we just
-			 * reported.
-			 *
-			 * Because of this, we must check the out array
-			 * index (cur_ext) directly against bmv_count-1
-			 * to avoid overflows.
-			 */
-			if (inject_map.br_startblock != NULLFSBLOCK) {
-				map[i] = inject_map;
-				i--;
+		/*
+		 * In order to report shared extents accurately, we report each
+		 * distinct shared / unshared part of a single bmbt record with
+		 * an individual getbmapx record.
+		 */
+		bno = got.br_startoff + got.br_blockcount;
+		rec = got;
+		do {
+			error = xfs_getbmap_report_one(ip, bmv, out, bmv_end,
+					&rec);
+			if (error || xfs_getbmap_full(bmv))
+				goto out_unlock_ilock;
+		} while (xfs_getbmap_next_rec(&rec, bno));
+
+		if (!xfs_iext_next_extent(ifp, &icur, &got)) {
+			xfs_fileoff_t	end = XFS_B_TO_FSB(mp, XFS_ISIZE(ip));
+
+			out[bmv->bmv_entries - 1].bmv_oflags |= BMV_OF_LAST;
+
+			if (whichfork != XFS_ATTR_FORK && bno < end &&
+			    !xfs_getbmap_full(bmv)) {
+				xfs_getbmap_report_hole(ip, bmv, out, bmv_end,
+						bno, end);
 			}
-			bmv->bmv_entries++;
-			cur_ext++;
+			break;
 		}
-	} while (nmap && bmv->bmv_length && cur_ext < bmv->bmv_count - 1);
 
- out_free_map:
-	kmem_free(map);
- out_unlock_ilock:
-	xfs_iunlock(ip, lock);
- out_unlock_iolock:
-	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
-
-	for (i = 0; i < cur_ext; i++) {
-		/* format results & advance arg */
-		error = formatter(&arg, &out[i]);
-		if (error)
+		if (bno >= first_bno + len)
 			break;
 	}
 
-	kmem_free(out);
+out_unlock_ilock:
+	xfs_iunlock(ip, lock);
+out_unlock_iolock:
+	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 	return error;
 }
 
@@ -1387,53 +1262,12 @@ out:
 
 }
 
-/*
- * @next_fsb will keep track of the extent currently undergoing shift.
- * @stop_fsb will keep track of the extent at which we have to stop.
- * If we are shifting left, we will start with block (offset + len) and
- * shift each extent till last extent.
- * If we are shifting right, we will start with last extent inside file space
- * and continue until we reach the block corresponding to offset.
- */
 static int
-xfs_shift_file_space(
-	struct xfs_inode        *ip,
-	xfs_off_t               offset,
-	xfs_off_t               len,
-	enum shift_direction	direction)
+xfs_prepare_shift(
+	struct xfs_inode	*ip,
+	loff_t			offset)
 {
-	int			done = 0;
-	struct xfs_mount	*mp = ip->i_mount;
-	struct xfs_trans	*tp;
 	int			error;
-	struct xfs_defer_ops	dfops;
-	xfs_fsblock_t		first_block;
-	xfs_fileoff_t		stop_fsb;
-	xfs_fileoff_t		next_fsb;
-	xfs_fileoff_t		shift_fsb;
-	uint			resblks;
-
-	ASSERT(direction == SHIFT_LEFT || direction == SHIFT_RIGHT);
-
-	if (direction == SHIFT_LEFT) {
-		/*
-		 * Reserve blocks to cover potential extent merges after left
-		 * shift operations.
-		 */
-		resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
-		next_fsb = XFS_B_TO_FSB(mp, offset + len);
-		stop_fsb = XFS_B_TO_FSB(mp, VFS_I(ip)->i_size);
-	} else {
-		/*
-		 * If right shift, delegate the work of initialization of
-		 * next_fsb to xfs_bmap_shift_extent as it has ilock held.
-		 */
-		resblks = 0;
-		next_fsb = NULLFSBLOCK;
-		stop_fsb = XFS_B_TO_FSB(mp, offset);
-	}
-
-	shift_fsb = XFS_B_TO_FSB(mp, len);
 
 	/*
 	 * Trim eofblocks to avoid shifting uninitialized post-eof preallocation
@@ -1449,8 +1283,7 @@ xfs_shift_file_space(
 	 * Writeback and invalidate cache for the remainder of the file as we're
 	 * about to shift down every extent from offset to EOF.
 	 */
-	error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
-					     offset, -1);
+	error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping, offset, -1);
 	if (error)
 		return error;
 	error = invalidate_inode_pages2_range(VFS_I(ip)->i_mapping,
@@ -1459,16 +1292,62 @@ xfs_shift_file_space(
 		return error;
 
 	/*
-	 * The extent shiting code works on extent granularity. So, if
-	 * stop_fsb is not the starting block of extent, we need to split
-	 * the extent at stop_fsb.
+	 * Clean out anything hanging around in the cow fork now that
+	 * we've flushed all the dirty data out to disk to avoid having
+	 * CoW extents at the wrong offsets.
 	 */
-	if (direction == SHIFT_RIGHT) {
-		error = xfs_bmap_split_extent(ip, stop_fsb);
+	if (xfs_is_reflink_inode(ip)) {
+		error = xfs_reflink_cancel_cow_range(ip, offset, NULLFILEOFF,
+				true);
 		if (error)
 			return error;
 	}
 
+	return 0;
+}
+
+/*
+ * xfs_collapse_file_space()
+ *	This routine frees disk space and shift extent for the given file.
+ *	The first thing we do is to free data blocks in the specified range
+ *	by calling xfs_free_file_space(). It would also sync dirty data
+ *	and invalidate page cache over the region on which collapse range
+ *	is working. And Shift extent records to the left to cover a hole.
+ * RETURNS:
+ *	0 on success
+ *	errno on error
+ *
+ */
+int
+xfs_collapse_file_space(
+	struct xfs_inode	*ip,
+	xfs_off_t		offset,
+	xfs_off_t		len)
+{
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	int			error;
+	struct xfs_defer_ops	dfops;
+	xfs_fsblock_t		first_block;
+	xfs_fileoff_t		stop_fsb = XFS_B_TO_FSB(mp, VFS_I(ip)->i_size);
+	xfs_fileoff_t		next_fsb = XFS_B_TO_FSB(mp, offset + len);
+	xfs_fileoff_t		shift_fsb = XFS_B_TO_FSB(mp, len);
+	uint			resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
+	bool			done = false;
+
+	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
+	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
+
+	trace_xfs_collapse_file_space(ip);
+
+	error = xfs_free_file_space(ip, offset, len);
+	if (error)
+		return error;
+
+	error = xfs_prepare_shift(ip, offset);
+	if (error)
+		return error;
+
 	while (!error && !done) {
 		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks, 0, 0,
 					&tp);
@@ -1481,25 +1360,17 @@ xfs_shift_file_space(
 				XFS_QMOPT_RES_REGBLKS);
 		if (error)
 			goto out_trans_cancel;
-
 		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
 
 		xfs_defer_init(&dfops, &first_block);
-
-		/*
-		 * We are using the write transaction in which max 2 bmbt
-		 * updates are allowed
-		 */
-		error = xfs_bmap_shift_extents(tp, ip, &next_fsb, shift_fsb,
-				&done, stop_fsb, &first_block, &dfops,
-				direction, XFS_BMAP_MAX_SHIFT_EXTENTS);
+		error = xfs_bmap_collapse_extents(tp, ip, &next_fsb, shift_fsb,
+				&done, stop_fsb, &first_block, &dfops);
 		if (error)
 			goto out_bmap_cancel;
 
 		error = xfs_defer_finish(&tp, &dfops);
 		if (error)
 			goto out_bmap_cancel;
-
 		error = xfs_trans_commit(tp);
 	}
 
@@ -1513,36 +1384,6 @@ out_trans_cancel:
 }
 
 /*
- * xfs_collapse_file_space()
- *	This routine frees disk space and shift extent for the given file.
- *	The first thing we do is to free data blocks in the specified range
- *	by calling xfs_free_file_space(). It would also sync dirty data
- *	and invalidate page cache over the region on which collapse range
- *	is working. And Shift extent records to the left to cover a hole.
- * RETURNS:
- *	0 on success
- *	errno on error
- *
- */
-int
-xfs_collapse_file_space(
-	struct xfs_inode	*ip,
-	xfs_off_t		offset,
-	xfs_off_t		len)
-{
-	int error;
-
-	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
-	trace_xfs_collapse_file_space(ip);
-
-	error = xfs_free_file_space(ip, offset, len);
-	if (error)
-		return error;
-
-	return xfs_shift_file_space(ip, offset, len, SHIFT_LEFT);
-}
-
-/*
  * xfs_insert_file_space()
  *	This routine create hole space by shifting extents for the given file.
  *	The first thing we do is to sync dirty data and invalidate page cache
@@ -1560,10 +1401,60 @@ xfs_insert_file_space(
 	loff_t			offset,
 	loff_t			len)
 {
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	int			error;
+	struct xfs_defer_ops	dfops;
+	xfs_fsblock_t		first_block;
+	xfs_fileoff_t		stop_fsb = XFS_B_TO_FSB(mp, offset);
+	xfs_fileoff_t		next_fsb = NULLFSBLOCK;
+	xfs_fileoff_t		shift_fsb = XFS_B_TO_FSB(mp, len);
+	bool			done = false;
+
 	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
+	ASSERT(xfs_isilocked(ip, XFS_MMAPLOCK_EXCL));
+
 	trace_xfs_insert_file_space(ip);
 
-	return xfs_shift_file_space(ip, offset, len, SHIFT_RIGHT);
+	error = xfs_prepare_shift(ip, offset);
+	if (error)
+		return error;
+
+	/*
+	 * The extent shifting code works on extent granularity. So, if stop_fsb
+	 * is not the starting block of extent, we need to split the extent at
+	 * stop_fsb.
+	 */
+	error = xfs_bmap_split_extent(ip, stop_fsb);
+	if (error)
+		return error;
+
+	while (!error && !done) {
+		error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, 0, 0, 0,
+					&tp);
+		if (error)
+			break;
+
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+		xfs_defer_init(&dfops, &first_block);
+		error = xfs_bmap_insert_extents(tp, ip, &next_fsb, shift_fsb,
+				&done, stop_fsb, &first_block, &dfops);
+		if (error)
+			goto out_bmap_cancel;
+
+		error = xfs_defer_finish(&tp, &dfops);
+		if (error)
+			goto out_bmap_cancel;
+		error = xfs_trans_commit(tp);
+	}
+
+	return error;
+
+out_bmap_cancel:
+	xfs_defer_cancel(&dfops);
+	xfs_trans_cancel(tp);
+	return error;
 }
 
 /*
@@ -1818,7 +1709,6 @@ xfs_swap_extent_forks(
 	xfs_filblks_t		aforkblks = 0;
 	xfs_filblks_t		taforkblks = 0;
 	xfs_extnum_t		junk;
-	xfs_extnum_t		nextents;
 	uint64_t		tmp;
 	int			error;
 
@@ -1893,13 +1783,6 @@ xfs_swap_extent_forks(
 
 	switch (ip->i_d.di_format) {
 	case XFS_DINODE_FMT_EXTENTS:
-		/*
-		 * If the extents fit in the inode, fix the pointer.  Otherwise
-		 * it's already NULL or pointing to the extent.
-		 */
-		nextents = xfs_iext_count(&ip->i_df);
-		if (nextents <= XFS_INLINE_EXTS)
-			ifp->if_u1.if_extents = ifp->if_u2.if_inline_ext;
 		(*src_log_flags) |= XFS_ILOG_DEXT;
 		break;
 	case XFS_DINODE_FMT_BTREE:
@@ -1911,13 +1794,6 @@ xfs_swap_extent_forks(
 
 	switch (tip->i_d.di_format) {
 	case XFS_DINODE_FMT_EXTENTS:
-		/*
-		 * If the extents fit in the inode, fix the pointer.  Otherwise
-		 * it's already NULL or pointing to the extent.
-		 */
-		nextents = xfs_iext_count(&tip->i_df);
-		if (nextents <= XFS_INLINE_EXTS)
-			tifp->if_u1.if_extents = tifp->if_u2.if_inline_ext;
 		(*target_log_flags) |= XFS_ILOG_DEXT;
 		break;
 	case XFS_DINODE_FMT_BTREE:
@@ -2110,11 +1986,31 @@ xfs_swap_extents(
 		ip->i_d.di_flags2 |= tip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
 		tip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
 		tip->i_d.di_flags2 |= f & XFS_DIFLAG2_REFLINK;
+	}
+
+	/* Swap the cow forks. */
+	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+		xfs_extnum_t	extnum;
+
+		ASSERT(ip->i_cformat == XFS_DINODE_FMT_EXTENTS);
+		ASSERT(tip->i_cformat == XFS_DINODE_FMT_EXTENTS);
+
+		extnum = ip->i_cnextents;
+		ip->i_cnextents = tip->i_cnextents;
+		tip->i_cnextents = extnum;
+
 		cowfp = ip->i_cowfp;
 		ip->i_cowfp = tip->i_cowfp;
 		tip->i_cowfp = cowfp;
-		xfs_inode_set_cowblocks_tag(ip);
-		xfs_inode_set_cowblocks_tag(tip);
+
+		if (ip->i_cowfp && ip->i_cnextents)
+			xfs_inode_set_cowblocks_tag(ip);
+		else
+			xfs_inode_clear_cowblocks_tag(ip);
+		if (tip->i_cowfp && tip->i_cnextents)
+			xfs_inode_set_cowblocks_tag(tip);
+		else
+			xfs_inode_clear_cowblocks_tag(tip);
 	}
 
 	xfs_trans_log_inode(tp, ip,  src_log_flags);
diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h
index 0eaa81dc49be..4d4ae48bd4f6 100644
--- a/fs/xfs/xfs_bmap_util.h
+++ b/fs/xfs/xfs_bmap_util.h
@@ -28,16 +28,33 @@ struct xfs_mount;
 struct xfs_trans;
 struct xfs_bmalloca;
 
+#ifdef CONFIG_XFS_RT
 int	xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
+#else /* !CONFIG_XFS_RT */
+/*
+ * Attempts to allocate RT extents when RT is disable indicates corruption and
+ * should trigger a shutdown.
+ */
+static inline int
+xfs_bmap_rtalloc(struct xfs_bmalloca *ap)
+{
+	return -EFSCORRUPTED;
+}
+#endif /* CONFIG_XFS_RT */
+
 int	xfs_bmap_eof(struct xfs_inode *ip, xfs_fileoff_t endoff,
 		     int whichfork, int *eof);
 int	xfs_bmap_punch_delalloc_range(struct xfs_inode *ip,
 		xfs_fileoff_t start_fsb, xfs_fileoff_t length);
 
-/* bmap to userspace formatter - copy to user & advance pointer */
-typedef int (*xfs_bmap_format_t)(void **, struct getbmapx *);
+struct kgetbmap {
+	__s64		bmv_offset;	/* file offset of segment in blocks */
+	__s64		bmv_block;	/* starting block (64-bit daddr_t)  */
+	__s64		bmv_length;	/* length of segment, blocks	    */
+	__s32		bmv_oflags;	/* output flags */
+};
 int	xfs_getbmap(struct xfs_inode *ip, struct getbmapx *bmv,
-		xfs_bmap_format_t formatter, void *arg);
+		struct kgetbmap *out);
 
 /* functions in xfs_bmap.c that are only needed by xfs_bmap_util.c */
 int	xfs_bmap_extsize_align(struct xfs_mount *mp, struct xfs_bmbt_irec *gotp,
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index da14658da310..4db6e8d780f6 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -42,6 +42,8 @@
 #include "xfs_mount.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
+#include "xfs_errortag.h"
+#include "xfs_error.h"
 
 static kmem_zone_t *xfs_buf_zone;
 
@@ -1258,8 +1260,6 @@ xfs_buf_ioapply_map(
 	int		size;
 	int		offset;
 
-	total_nr_pages = bp->b_page_count;
-
 	/* skip the pages in the buffer before the start offset */
 	page_index = 0;
 	offset = *buf_offset;
@@ -2131,3 +2131,17 @@ xfs_buf_terminate(void)
 {
 	kmem_zone_destroy(xfs_buf_zone);
 }
+
+void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref)
+{
+	/*
+	 * Set the lru reference count to 0 based on the error injection tag.
+	 * This allows userspace to disrupt buffer caching for debug/testing
+	 * purposes.
+	 */
+	if (XFS_TEST_ERROR(false, bp->b_target->bt_mount,
+			   XFS_ERRTAG_BUF_LRU_REF))
+		lru_ref = 0;
+
+	atomic_set(&bp->b_lru_ref, lru_ref);
+}
diff --git a/fs/xfs/xfs_buf.h b/fs/xfs/xfs_buf.h
index bf71507ddb16..f873bb786824 100644
--- a/fs/xfs/xfs_buf.h
+++ b/fs/xfs/xfs_buf.h
@@ -352,10 +352,7 @@ extern void xfs_buf_terminate(void);
 #define XFS_BUF_ADDR(bp)		((bp)->b_maps[0].bm_bn)
 #define XFS_BUF_SET_ADDR(bp, bno)	((bp)->b_maps[0].bm_bn = (xfs_daddr_t)(bno))
 
-static inline void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref)
-{
-	atomic_set(&bp->b_lru_ref, lru_ref);
-}
+void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref);
 
 static inline int xfs_buf_ispinned(struct xfs_buf *bp)
 {
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index ba2638d37031..0c58918bc0ad 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -41,7 +41,7 @@ static unsigned char xfs_dir3_filetype_table[] = {
 	DT_FIFO, DT_SOCK, DT_LNK, DT_WHT,
 };
 
-static unsigned char
+unsigned char
 xfs_dir3_get_dtype(
 	struct xfs_mount	*mp,
 	uint8_t			filetype)
@@ -266,7 +266,7 @@ xfs_dir2_leaf_readbuf(
 	xfs_dablk_t		next_ra;
 	xfs_dablk_t		map_off;
 	xfs_dablk_t		last_da;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 	int			ra_want;
 	int			error = 0;
 
@@ -283,7 +283,7 @@ xfs_dir2_leaf_readbuf(
 	 */
 	last_da = xfs_dir2_byte_to_da(geo, XFS_DIR2_LEAF_OFFSET);
 	map_off = xfs_dir2_db_to_da(geo, xfs_dir2_byte_to_db(geo, *cur_off));
-	if (!xfs_iext_lookup_extent(dp, ifp, map_off, &idx, &map))
+	if (!xfs_iext_lookup_extent(dp, ifp, map_off, &icur, &map))
 		goto out;
 	if (map.br_startoff >= last_da)
 		goto out;
@@ -311,7 +311,7 @@ xfs_dir2_leaf_readbuf(
 	if (next_ra >= last_da)
 		goto out_no_ra;
 	if (map.br_blockcount < geo->fsbcount &&
-	    !xfs_iext_get_extent(ifp, ++idx, &map))
+	    !xfs_iext_next_extent(ifp, &icur, &map))
 		goto out_no_ra;
 	if (map.br_startoff >= last_da)
 		goto out_no_ra;
@@ -334,7 +334,7 @@ xfs_dir2_leaf_readbuf(
 			ra_want -= geo->fsbcount;
 			next_ra += geo->fsbcount;
 		}
-		if (!xfs_iext_get_extent(ifp, ++idx, &map)) {
+		if (!xfs_iext_next_extent(ifp, &icur, &map)) {
 			*ra_blk = last_da;
 			break;
 		}
diff --git a/fs/xfs/xfs_discard.h b/fs/xfs/xfs_discard.h
index 0f070f9e44e1..de92d9cc958f 100644
--- a/fs/xfs/xfs_discard.h
+++ b/fs/xfs/xfs_discard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef XFS_DISCARD_H
 #define XFS_DISCARD_H 1
 
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index cd82429d8df7..d57c2db64e59 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -53,13 +53,6 @@
  * otherwise by the lowest id first, see xfs_dqlock2.
  */
 
-#ifdef DEBUG
-xfs_buftarg_t *xfs_dqerror_target;
-int xfs_do_dqerror;
-int xfs_dqreq_num;
-int xfs_dqerror_mod = 33;
-#endif
-
 struct kmem_zone		*xfs_qm_dqtrxzone;
 static struct kmem_zone		*xfs_qm_dqzone;
 
@@ -703,7 +696,7 @@ xfs_dq_get_next_id(
 	xfs_dqid_t		next_id = *id + 1; /* simple advance */
 	uint			lock_flags;
 	struct xfs_bmbt_irec	got;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	cur;
 	xfs_fsblock_t		start;
 	int			error = 0;
 
@@ -727,7 +720,7 @@ xfs_dq_get_next_id(
 			return error;
 	}
 
-	if (xfs_iext_lookup_extent(quotip, &quotip->i_df, start, &idx, &got)) {
+	if (xfs_iext_lookup_extent(quotip, &quotip->i_df, start, &cur, &got)) {
 		/* contiguous chunk, bump startoff for the id calculation */
 		if (got.br_startoff < start)
 			got.br_startoff = start;
@@ -770,15 +763,6 @@ xfs_qm_dqget(
 		return -ESRCH;
 	}
 
-#ifdef DEBUG
-	if (xfs_do_dqerror) {
-		if ((xfs_dqerror_target == mp->m_ddev_targp) &&
-		    (xfs_dqreq_num++ % xfs_dqerror_mod) == 0) {
-			xfs_debug(mp, "Returning error in dqget");
-			return -EIO;
-		}
-	}
-
 	ASSERT(type == XFS_DQ_USER ||
 	       type == XFS_DQ_PROJ ||
 	       type == XFS_DQ_GROUP);
@@ -786,7 +770,6 @@ xfs_qm_dqget(
 		ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
 		ASSERT(xfs_inode_dquot(ip, type) == NULL);
 	}
-#endif
 
 restart:
 	mutex_lock(&qi->qi_tree_lock);
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index bd786a9ac2c3..4c9f35d983b2 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -21,6 +21,7 @@
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_mount.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_sysfs.h"
 
@@ -58,6 +59,7 @@ static unsigned int xfs_errortag_random_default[] = {
 	XFS_RANDOM_DROP_WRITES,
 	XFS_RANDOM_LOG_BAD_CRC,
 	XFS_RANDOM_LOG_ITEM_PIN,
+	XFS_RANDOM_BUF_LRU_REF,
 };
 
 struct xfs_errortag_attr {
@@ -163,6 +165,7 @@ XFS_ERRORTAG_ATTR_RW(ag_resv_critical,	XFS_ERRTAG_AG_RESV_CRITICAL);
 XFS_ERRORTAG_ATTR_RW(drop_writes,	XFS_ERRTAG_DROP_WRITES);
 XFS_ERRORTAG_ATTR_RW(log_bad_crc,	XFS_ERRTAG_LOG_BAD_CRC);
 XFS_ERRORTAG_ATTR_RW(log_item_pin,	XFS_ERRTAG_LOG_ITEM_PIN);
+XFS_ERRORTAG_ATTR_RW(buf_lru_ref,	XFS_ERRTAG_BUF_LRU_REF);
 
 static struct attribute *xfs_errortag_attrs[] = {
 	XFS_ERRORTAG_ATTR_LIST(noerror),
@@ -196,10 +199,11 @@ static struct attribute *xfs_errortag_attrs[] = {
 	XFS_ERRORTAG_ATTR_LIST(drop_writes),
 	XFS_ERRORTAG_ATTR_LIST(log_bad_crc),
 	XFS_ERRORTAG_ATTR_LIST(log_item_pin),
+	XFS_ERRORTAG_ATTR_LIST(buf_lru_ref),
 	NULL,
 };
 
-struct kobj_type xfs_errortag_ktype = {
+static struct kobj_type xfs_errortag_ktype = {
 	.release = xfs_sysfs_release,
 	.sysfs_ops = &xfs_errortag_sysfs_ops,
 	.default_attrs = xfs_errortag_attrs,
@@ -347,7 +351,7 @@ xfs_verifier_error(
 {
 	struct xfs_mount *mp = bp->b_target->bt_mount;
 
-	xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx",
+	xfs_alert(mp, "Metadata %s detected at %pS, %s block 0x%llx",
 		  bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
 		  __return_address, bp->b_ops->name, bp->b_bn);
 
diff --git a/fs/xfs/xfs_error.h b/fs/xfs/xfs_error.h
index 7c4bef3bddb7..ea816c1bf8db 100644
--- a/fs/xfs/xfs_error.h
+++ b/fs/xfs/xfs_error.h
@@ -63,87 +63,6 @@ extern void xfs_verifier_error(struct xfs_buf *bp);
 		} \
 	}
 
-/*
- * error injection tags - the labels can be anything you want
- * but each tag should have its own unique number
- */
-
-#define XFS_ERRTAG_NOERROR				0
-#define XFS_ERRTAG_IFLUSH_1				1
-#define XFS_ERRTAG_IFLUSH_2				2
-#define XFS_ERRTAG_IFLUSH_3				3
-#define XFS_ERRTAG_IFLUSH_4				4
-#define XFS_ERRTAG_IFLUSH_5				5
-#define XFS_ERRTAG_IFLUSH_6				6
-#define	XFS_ERRTAG_DA_READ_BUF				7
-#define	XFS_ERRTAG_BTREE_CHECK_LBLOCK			8
-#define	XFS_ERRTAG_BTREE_CHECK_SBLOCK			9
-#define	XFS_ERRTAG_ALLOC_READ_AGF			10
-#define	XFS_ERRTAG_IALLOC_READ_AGI			11
-#define	XFS_ERRTAG_ITOBP_INOTOBP			12
-#define	XFS_ERRTAG_IUNLINK				13
-#define	XFS_ERRTAG_IUNLINK_REMOVE			14
-#define	XFS_ERRTAG_DIR_INO_VALIDATE			15
-#define XFS_ERRTAG_BULKSTAT_READ_CHUNK			16
-#define XFS_ERRTAG_IODONE_IOERR				17
-#define XFS_ERRTAG_STRATREAD_IOERR			18
-#define XFS_ERRTAG_STRATCMPL_IOERR			19
-#define XFS_ERRTAG_DIOWRITE_IOERR			20
-#define XFS_ERRTAG_BMAPIFORMAT				21
-#define XFS_ERRTAG_FREE_EXTENT				22
-#define XFS_ERRTAG_RMAP_FINISH_ONE			23
-#define XFS_ERRTAG_REFCOUNT_CONTINUE_UPDATE		24
-#define XFS_ERRTAG_REFCOUNT_FINISH_ONE			25
-#define XFS_ERRTAG_BMAP_FINISH_ONE			26
-#define XFS_ERRTAG_AG_RESV_CRITICAL			27
-/*
- * DEBUG mode instrumentation to test and/or trigger delayed allocation
- * block killing in the event of failed writes. When enabled, all
- * buffered writes are silenty dropped and handled as if they failed.
- * All delalloc blocks in the range of the write (including pre-existing
- * delalloc blocks!) are tossed as part of the write failure error
- * handling sequence.
- */
-#define XFS_ERRTAG_DROP_WRITES				28
-#define XFS_ERRTAG_LOG_BAD_CRC				29
-#define XFS_ERRTAG_LOG_ITEM_PIN				30
-#define XFS_ERRTAG_MAX					31
-
-/*
- * Random factors for above tags, 1 means always, 2 means 1/2 time, etc.
- */
-#define XFS_RANDOM_DEFAULT				100
-#define XFS_RANDOM_IFLUSH_1				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IFLUSH_2				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IFLUSH_3				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IFLUSH_4				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IFLUSH_5				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IFLUSH_6				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_DA_READ_BUF				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_BTREE_CHECK_LBLOCK			(XFS_RANDOM_DEFAULT/4)
-#define XFS_RANDOM_BTREE_CHECK_SBLOCK			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_ALLOC_READ_AGF			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IALLOC_READ_AGI			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_ITOBP_INOTOBP			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IUNLINK				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IUNLINK_REMOVE			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_DIR_INO_VALIDATE			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_BULKSTAT_READ_CHUNK			XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_IODONE_IOERR				(XFS_RANDOM_DEFAULT/10)
-#define XFS_RANDOM_STRATREAD_IOERR			(XFS_RANDOM_DEFAULT/10)
-#define XFS_RANDOM_STRATCMPL_IOERR			(XFS_RANDOM_DEFAULT/10)
-#define XFS_RANDOM_DIOWRITE_IOERR			(XFS_RANDOM_DEFAULT/10)
-#define	XFS_RANDOM_BMAPIFORMAT				XFS_RANDOM_DEFAULT
-#define XFS_RANDOM_FREE_EXTENT				1
-#define XFS_RANDOM_RMAP_FINISH_ONE			1
-#define XFS_RANDOM_REFCOUNT_CONTINUE_UPDATE		1
-#define XFS_RANDOM_REFCOUNT_FINISH_ONE			1
-#define XFS_RANDOM_BMAP_FINISH_ONE			1
-#define XFS_RANDOM_AG_RESV_CRITICAL			4
-#define XFS_RANDOM_DROP_WRITES				1
-#define XFS_RANDOM_LOG_BAD_CRC				1
-#define XFS_RANDOM_LOG_ITEM_PIN				1
-
 #ifdef DEBUG
 extern int xfs_errortag_init(struct xfs_mount *mp);
 extern void xfs_errortag_del(struct xfs_mount *mp);
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index ec3e44fcf771..18146873a8b3 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -58,7 +58,7 @@ xfs_zero_range(
 	xfs_off_t		count,
 	bool			*did_zero)
 {
-	return iomap_zero_range(VFS_I(ip), pos, count, NULL, &xfs_iomap_ops);
+	return iomap_zero_range(VFS_I(ip), pos, count, did_zero, &xfs_iomap_ops);
 }
 
 int
@@ -237,11 +237,13 @@ xfs_file_dax_read(
 	if (!count)
 		return 0; /* skip atime */
 
-	if (!xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED)) {
-		if (iocb->ki_flags & IOCB_NOWAIT)
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		if (!xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED))
 			return -EAGAIN;
+	} else {
 		xfs_ilock(ip, XFS_IOLOCK_SHARED);
 	}
+
 	ret = dax_iomap_rw(iocb, to, &xfs_iomap_ops);
 	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 
@@ -259,7 +261,12 @@ xfs_file_buffered_aio_read(
 
 	trace_xfs_file_buffered_read(ip, iov_iter_count(to), iocb->ki_pos);
 
-	xfs_ilock(ip, XFS_IOLOCK_SHARED);
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		if (!xfs_ilock_nowait(ip, XFS_IOLOCK_SHARED))
+			return -EAGAIN;
+	} else {
+		xfs_ilock(ip, XFS_IOLOCK_SHARED);
+	}
 	ret = generic_file_read_iter(iocb, to);
 	xfs_iunlock(ip, XFS_IOLOCK_SHARED);
 
@@ -373,8 +380,6 @@ restart:
 	 */
 	spin_lock(&ip->i_flags_lock);
 	if (iocb->ki_pos > i_size_read(inode)) {
-		bool	zero = false;
-
 		spin_unlock(&ip->i_flags_lock);
 		if (!drained_dio) {
 			if (*iolock == XFS_IOLOCK_SHARED) {
@@ -395,7 +400,7 @@ restart:
 			drained_dio = true;
 			goto restart;
 		}
-		error = xfs_zero_eof(ip, iocb->ki_pos, i_size_read(inode), &zero);
+		error = xfs_zero_eof(ip, iocb->ki_pos, i_size_read(inode), NULL);
 		if (error)
 			return error;
 	} else
@@ -432,7 +437,6 @@ xfs_dio_write_end_io(
 	struct inode		*inode = file_inode(iocb->ki_filp);
 	struct xfs_inode	*ip = XFS_I(inode);
 	loff_t			offset = iocb->ki_pos;
-	bool			update_size = false;
 	int			error = 0;
 
 	trace_xfs_end_io_direct_write(ip, offset, size);
@@ -443,6 +447,21 @@ xfs_dio_write_end_io(
 	if (size <= 0)
 		return size;
 
+	if (flags & IOMAP_DIO_COW) {
+		error = xfs_reflink_end_cow(ip, offset, size);
+		if (error)
+			return error;
+	}
+
+	/*
+	 * Unwritten conversion updates the in-core isize after extent
+	 * conversion but before updating the on-disk size. Updating isize any
+	 * earlier allows a racing dio read to find unwritten extents before
+	 * they are converted.
+	 */
+	if (flags & IOMAP_DIO_UNWRITTEN)
+		return xfs_iomap_write_unwritten(ip, offset, size, true);
+
 	/*
 	 * We need to update the in-core inode size here so that we don't end up
 	 * with the on-disk inode size being outside the in-core inode size. We
@@ -457,20 +476,11 @@ xfs_dio_write_end_io(
 	spin_lock(&ip->i_flags_lock);
 	if (offset + size > i_size_read(inode)) {
 		i_size_write(inode, offset + size);
-		update_size = true;
-	}
-	spin_unlock(&ip->i_flags_lock);
-
-	if (flags & IOMAP_DIO_COW) {
-		error = xfs_reflink_end_cow(ip, offset, size);
-		if (error)
-			return error;
-	}
-
-	if (flags & IOMAP_DIO_UNWRITTEN)
-		error = xfs_iomap_write_unwritten(ip, offset, size);
-	else if (update_size)
+		spin_unlock(&ip->i_flags_lock);
 		error = xfs_setfilesize(ip, offset, size);
+	} else {
+		spin_unlock(&ip->i_flags_lock);
+	}
 
 	return error;
 }
@@ -545,9 +555,10 @@ xfs_file_dio_aio_write(
 		iolock = XFS_IOLOCK_SHARED;
 	}
 
-	if (!xfs_ilock_nowait(ip, iolock)) {
-		if (iocb->ki_flags & IOCB_NOWAIT)
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		if (!xfs_ilock_nowait(ip, iolock))
 			return -EAGAIN;
+	} else {
 		xfs_ilock(ip, iolock);
 	}
 
@@ -599,9 +610,10 @@ xfs_file_dax_write(
 	size_t			count;
 	loff_t			pos;
 
-	if (!xfs_ilock_nowait(ip, iolock)) {
-		if (iocb->ki_flags & IOCB_NOWAIT)
+	if (iocb->ki_flags & IOCB_NOWAIT) {
+		if (!xfs_ilock_nowait(ip, iolock))
 			return -EAGAIN;
+	} else {
 		xfs_ilock(ip, iolock);
 	}
 
@@ -636,6 +648,9 @@ xfs_file_buffered_aio_write(
 	int			enospc = 0;
 	int			iolock;
 
+	if (iocb->ki_flags & IOCB_NOWAIT)
+		return -EOPNOTSUPP;
+
 write_retry:
 	iolock = XFS_IOLOCK_EXCL;
 	xfs_ilock(ip, iolock);
@@ -754,7 +769,7 @@ xfs_file_fallocate(
 	enum xfs_prealloc_flags	flags = 0;
 	uint			iolock = XFS_IOLOCK_EXCL;
 	loff_t			new_size = 0;
-	bool			do_file_insert = 0;
+	bool			do_file_insert = false;
 
 	if (!S_ISREG(inode->i_mode))
 		return -EINVAL;
@@ -815,7 +830,7 @@ xfs_file_fallocate(
 			error = -EINVAL;
 			goto out_unlock;
 		}
-		do_file_insert = 1;
+		do_file_insert = true;
 	} else {
 		flags |= XFS_PREALLOC_SET;
 
@@ -912,7 +927,7 @@ xfs_file_open(
 		return -EFBIG;
 	if (XFS_FORCED_SHUTDOWN(XFS_M(inode->i_sb)))
 		return -EIO;
-	file->f_mode |= FMODE_AIO_NOWAIT;
+	file->f_mode |= FMODE_NOWAIT;
 	return 0;
 }
 
@@ -969,7 +984,7 @@ xfs_file_readdir(
 	 * point we can change the ->readdir prototype to include the
 	 * buffer size.  For now we use the current glibc buffer size.
 	 */
-	bufsize = (size_t)min_t(loff_t, 32768, ip->i_d.di_size);
+	bufsize = (size_t)min_t(loff_t, XFS_READDIR_BUFSIZE, ip->i_d.di_size);
 
 	return xfs_readdir(NULL, ip, ctx, bufsize);
 }
diff --git a/fs/xfs/xfs_fsmap.c b/fs/xfs/xfs_fsmap.c
index 814ed729881d..43cfc07996a4 100644
--- a/fs/xfs/xfs_fsmap.c
+++ b/fs/xfs/xfs_fsmap.c
@@ -367,29 +367,6 @@ xfs_getfsmap_datadev_helper(
 	return xfs_getfsmap_helper(cur->bc_tp, info, rec, rec_daddr);
 }
 
-/* Transform a rtbitmap "record" into a fsmap */
-STATIC int
-xfs_getfsmap_rtdev_rtbitmap_helper(
-	struct xfs_trans		*tp,
-	struct xfs_rtalloc_rec		*rec,
-	void				*priv)
-{
-	struct xfs_mount		*mp = tp->t_mountp;
-	struct xfs_getfsmap_info	*info = priv;
-	struct xfs_rmap_irec		irec;
-	xfs_daddr_t			rec_daddr;
-
-	rec_daddr = XFS_FSB_TO_BB(mp, rec->ar_startblock);
-
-	irec.rm_startblock = rec->ar_startblock;
-	irec.rm_blockcount = rec->ar_blockcount;
-	irec.rm_owner = XFS_RMAP_OWN_NULL;	/* "free" */
-	irec.rm_offset = 0;
-	irec.rm_flags = 0;
-
-	return xfs_getfsmap_helper(tp, info, &irec, rec_daddr);
-}
-
 /* Transform a bnobt irec into a fsmap */
 STATIC int
 xfs_getfsmap_datadev_bnobt_helper(
@@ -475,6 +452,30 @@ xfs_getfsmap_logdev(
 	return xfs_getfsmap_helper(tp, info, &rmap, 0);
 }
 
+#ifdef CONFIG_XFS_RT
+/* Transform a rtbitmap "record" into a fsmap */
+STATIC int
+xfs_getfsmap_rtdev_rtbitmap_helper(
+	struct xfs_trans		*tp,
+	struct xfs_rtalloc_rec		*rec,
+	void				*priv)
+{
+	struct xfs_mount		*mp = tp->t_mountp;
+	struct xfs_getfsmap_info	*info = priv;
+	struct xfs_rmap_irec		irec;
+	xfs_daddr_t			rec_daddr;
+
+	rec_daddr = XFS_FSB_TO_BB(mp, rec->ar_startblock);
+
+	irec.rm_startblock = rec->ar_startblock;
+	irec.rm_blockcount = rec->ar_blockcount;
+	irec.rm_owner = XFS_RMAP_OWN_NULL;	/* "free" */
+	irec.rm_offset = 0;
+	irec.rm_flags = 0;
+
+	return xfs_getfsmap_helper(tp, info, &irec, rec_daddr);
+}
+
 /* Execute a getfsmap query against the realtime device. */
 STATIC int
 __xfs_getfsmap_rtdev(
@@ -561,6 +562,7 @@ xfs_getfsmap_rtdev_rtbitmap(
 	return __xfs_getfsmap_rtdev(tp, keys, xfs_getfsmap_rtdev_rtbitmap_query,
 			info);
 }
+#endif /* CONFIG_XFS_RT */
 
 /* Execute a getfsmap query against the regular data device. */
 STATIC int
@@ -795,7 +797,15 @@ xfs_getfsmap_check_keys(
 	return false;
 }
 
+/*
+ * There are only two devices if we didn't configure RT devices at build time.
+ */
+#ifdef CONFIG_XFS_RT
 #define XFS_GETFSMAP_DEVS	3
+#else
+#define XFS_GETFSMAP_DEVS	2
+#endif /* CONFIG_XFS_RT */
+
 /*
  * Get filesystem's extents as described in head, and format for
  * output.  Calls formatter to fill the user's buffer until all
@@ -853,10 +863,12 @@ xfs_getfsmap(
 		handlers[1].dev = new_encode_dev(mp->m_logdev_targp->bt_dev);
 		handlers[1].fn = xfs_getfsmap_logdev;
 	}
+#ifdef CONFIG_XFS_RT
 	if (mp->m_rtdev_targp) {
 		handlers[2].dev = new_encode_dev(mp->m_rtdev_targp->bt_dev);
 		handlers[2].fn = xfs_getfsmap_rtdev_rtbitmap;
 	}
+#endif /* CONFIG_XFS_RT */
 
 	xfs_sort(handlers, XFS_GETFSMAP_DEVS, sizeof(struct xfs_getfsmap_dev),
 			xfs_getfsmap_dev_compare);
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 34227115a5d6..43005fbe8b1e 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -610,7 +610,7 @@ again:
 	} else {
 		rcu_read_unlock();
 		if (flags & XFS_IGET_INCORE) {
-			error = -ENOENT;
+			error = -ENODATA;
 			goto out_error_or_again;
 		}
 		XFS_STATS_INC(mp, xs_ig_missed);
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 5599dda4727a..d8226f7a5dde 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -39,6 +39,7 @@
 #include "xfs_ialloc.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
 #include "xfs_filestream.h"
@@ -384,14 +385,6 @@ xfs_isilocked(
 }
 #endif
 
-#ifdef DEBUG
-int xfs_locked_n;
-int xfs_small_retries;
-int xfs_middle_retries;
-int xfs_lots_retries;
-int xfs_lock_delays;
-#endif
-
 /*
  * xfs_lockdep_subclass_ok() is only used in an ASSERT, so is only called when
  * DEBUG or XFS_WARN is set. And MAX_LOCKDEP_SUBCLASSES is then only defined
@@ -544,24 +537,11 @@ again:
 
 		if ((attempts % 5) == 0) {
 			delay(1); /* Don't just spin the CPU */
-#ifdef DEBUG
-			xfs_lock_delays++;
-#endif
 		}
 		i = 0;
 		try_lock = 0;
 		goto again;
 	}
-
-#ifdef DEBUG
-	if (attempts) {
-		if (attempts < 5) xfs_small_retries++;
-		else if (attempts < 100) xfs_middle_retries++;
-		else xfs_lots_retries++;
-	} else {
-		xfs_locked_n++;
-	}
-#endif
 }
 
 /*
@@ -767,7 +747,7 @@ xfs_ialloc(
 	xfs_inode_t	*pip,
 	umode_t		mode,
 	xfs_nlink_t	nlink,
-	xfs_dev_t	rdev,
+	dev_t		rdev,
 	prid_t		prid,
 	int		okalloc,
 	xfs_buf_t	**ialloc_context,
@@ -819,6 +799,7 @@ xfs_ialloc(
 	set_nlink(inode, nlink);
 	ip->i_d.di_uid = xfs_kuid_to_uid(current_fsuid());
 	ip->i_d.di_gid = xfs_kgid_to_gid(current_fsgid());
+	inode->i_rdev = rdev;
 	xfs_set_projid(ip, prid);
 
 	if (pip && XFS_INHERIT_GID(pip)) {
@@ -867,7 +848,6 @@ xfs_ialloc(
 	case S_IFBLK:
 	case S_IFSOCK:
 		ip->i_d.di_format = XFS_DINODE_FMT_DEV;
-		ip->i_df.if_u2.if_rdev = rdev;
 		ip->i_df.if_flags = 0;
 		flags |= XFS_ILOG_DEV;
 		break;
@@ -933,7 +913,7 @@ xfs_ialloc(
 		ip->i_d.di_format = XFS_DINODE_FMT_EXTENTS;
 		ip->i_df.if_flags = XFS_IFEXTENTS;
 		ip->i_df.if_bytes = ip->i_df.if_real_bytes = 0;
-		ip->i_df.if_u1.if_extents = NULL;
+		ip->i_df.if_u1.if_root = NULL;
 		break;
 	default:
 		ASSERT(0);
@@ -975,7 +955,7 @@ xfs_dir_ialloc(
 					   the inode. */
 	umode_t		mode,
 	xfs_nlink_t	nlink,
-	xfs_dev_t	rdev,
+	dev_t		rdev,
 	prid_t		prid,		/* project id */
 	int		okalloc,	/* ok to allocate new space */
 	xfs_inode_t	**ipp,		/* pointer to inode; it will be
@@ -1147,7 +1127,7 @@ xfs_create(
 	xfs_inode_t		*dp,
 	struct xfs_name		*name,
 	umode_t			mode,
-	xfs_dev_t		rdev,
+	dev_t			rdev,
 	xfs_inode_t		**ipp)
 {
 	int			is_dir = S_ISDIR(mode);
@@ -1183,7 +1163,6 @@ xfs_create(
 		return error;
 
 	if (is_dir) {
-		rdev = 0;
 		resblks = XFS_MKDIR_SPACE_RES(mp, name->len);
 		tres = &M_RES(mp)->tr_mkdir;
 	} else {
@@ -1624,10 +1603,12 @@ xfs_itruncate_extents(
 		goto out;
 
 	/*
-	 * Clear the reflink flag if we truncated everything.
+	 * Clear the reflink flag if there are no data fork blocks and
+	 * there are no extents staged in the cow fork.
 	 */
-	if (ip->i_d.di_nblocks == 0 && xfs_is_reflink_inode(ip)) {
-		ip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
+	if (xfs_is_reflink_inode(ip) && ip->i_cnextents == 0) {
+		if (ip->i_d.di_nblocks == 0)
+			ip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
 		xfs_inode_clear_cowblocks_tag(ip);
 	}
 
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 0ee453de239a..cc13c3763721 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -391,7 +391,7 @@ void		xfs_inactive(struct xfs_inode *ip);
 int		xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
 			   struct xfs_inode **ipp, struct xfs_name *ci_name);
 int		xfs_create(struct xfs_inode *dp, struct xfs_name *name,
-			   umode_t mode, xfs_dev_t rdev, struct xfs_inode **ipp);
+			   umode_t mode, dev_t rdev, struct xfs_inode **ipp);
 int		xfs_create_tmpfile(struct xfs_inode *dp, struct dentry *dentry,
 			   umode_t mode, struct xfs_inode **ipp);
 int		xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
@@ -428,7 +428,7 @@ xfs_extlen_t	xfs_get_extsz_hint(struct xfs_inode *ip);
 xfs_extlen_t	xfs_get_cowextsz_hint(struct xfs_inode *ip);
 
 int		xfs_dir_ialloc(struct xfs_trans **, struct xfs_inode *, umode_t,
-			       xfs_nlink_t, xfs_dev_t, prid_t, int,
+			       xfs_nlink_t, dev_t, prid_t, int,
 			       struct xfs_inode **, int *);
 
 /* from xfs_file.c */
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 6d0f74ec31e8..6ee5c3bf19ad 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -72,7 +72,6 @@ xfs_inode_item_data_fork_size(
 		break;
 
 	case XFS_DINODE_FMT_DEV:
-	case XFS_DINODE_FMT_UUID:
 		break;
 	default:
 		ASSERT(0);
@@ -156,15 +155,13 @@ xfs_inode_item_format_data_fork(
 	switch (ip->i_d.di_format) {
 	case XFS_DINODE_FMT_EXTENTS:
 		iip->ili_fields &=
-			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
-			  XFS_ILOG_DEV | XFS_ILOG_UUID);
+			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | XFS_ILOG_DEV);
 
 		if ((iip->ili_fields & XFS_ILOG_DEXT) &&
 		    ip->i_d.di_nextents > 0 &&
 		    ip->i_df.if_bytes > 0) {
 			struct xfs_bmbt_rec *p;
 
-			ASSERT(ip->i_df.if_u1.if_extents != NULL);
 			ASSERT(xfs_iext_count(&ip->i_df) > 0);
 
 			p = xlog_prepare_iovec(lv, vecp, XLOG_REG_TYPE_IEXT);
@@ -181,8 +178,7 @@ xfs_inode_item_format_data_fork(
 		break;
 	case XFS_DINODE_FMT_BTREE:
 		iip->ili_fields &=
-			~(XFS_ILOG_DDATA | XFS_ILOG_DEXT |
-			  XFS_ILOG_DEV | XFS_ILOG_UUID);
+			~(XFS_ILOG_DDATA | XFS_ILOG_DEXT | XFS_ILOG_DEV);
 
 		if ((iip->ili_fields & XFS_ILOG_DBROOT) &&
 		    ip->i_df.if_broot_bytes > 0) {
@@ -200,8 +196,7 @@ xfs_inode_item_format_data_fork(
 		break;
 	case XFS_DINODE_FMT_LOCAL:
 		iip->ili_fields &=
-			~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT |
-			  XFS_ILOG_DEV | XFS_ILOG_UUID);
+			~(XFS_ILOG_DEXT | XFS_ILOG_DBROOT | XFS_ILOG_DEV);
 		if ((iip->ili_fields & XFS_ILOG_DDATA) &&
 		    ip->i_df.if_bytes > 0) {
 			/*
@@ -224,17 +219,9 @@ xfs_inode_item_format_data_fork(
 		break;
 	case XFS_DINODE_FMT_DEV:
 		iip->ili_fields &=
-			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
-			  XFS_ILOG_DEXT | XFS_ILOG_UUID);
+			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT | XFS_ILOG_DEXT);
 		if (iip->ili_fields & XFS_ILOG_DEV)
-			ilf->ilf_u.ilfu_rdev = ip->i_df.if_u2.if_rdev;
-		break;
-	case XFS_DINODE_FMT_UUID:
-		iip->ili_fields &=
-			~(XFS_ILOG_DDATA | XFS_ILOG_DBROOT |
-			  XFS_ILOG_DEXT | XFS_ILOG_DEV);
-		if (iip->ili_fields & XFS_ILOG_UUID)
-			ilf->ilf_u.ilfu_uuid = ip->i_df.if_u2.if_uuid;
+			ilf->ilf_u.ilfu_rdev = sysv_encode_dev(VFS_I(ip)->i_rdev);
 		break;
 	default:
 		ASSERT(0);
@@ -264,7 +251,6 @@ xfs_inode_item_format_attr_fork(
 
 			ASSERT(xfs_iext_count(ip->i_afp) ==
 				ip->i_d.di_anextents);
-			ASSERT(ip->i_afp->if_u1.if_extents != NULL);
 
 			p = xlog_prepare_iovec(lv, vecp, XLOG_REG_TYPE_IATTR_EXT);
 			data_bytes = xfs_iextents_copy(ip, p, XFS_ATTR_FORK);
@@ -364,6 +350,9 @@ xfs_inode_to_log_dinode(
 	to->di_dmstate = from->di_dmstate;
 	to->di_flags = from->di_flags;
 
+	/* log a dummy value to ensure log structure is fully initialised */
+	to->di_next_unlinked = NULLAGINO;
+
 	if (from->di_version == 3) {
 		to->di_changecount = inode->i_version;
 		to->di_crtime.t_sec = from->di_crtime.t_sec;
@@ -404,6 +393,11 @@ xfs_inode_item_format_core(
  * the second with the on-disk inode structure, and a possible third and/or
  * fourth with the inode data/extents/b-tree root and inode attributes
  * data/extents/b-tree root.
+ *
+ * Note: Always use the 64 bit inode log format structure so we don't
+ * leave an uninitialised hole in the format item on 64 bit systems. Log
+ * recovery on 32 bit systems handles this just fine, so there's no reason
+ * for not using an initialising the properly padded structure all the time.
  */
 STATIC void
 xfs_inode_item_format(
@@ -412,8 +406,8 @@ xfs_inode_item_format(
 {
 	struct xfs_inode_log_item *iip = INODE_ITEM(lip);
 	struct xfs_inode	*ip = iip->ili_inode;
-	struct xfs_inode_log_format *ilf;
 	struct xfs_log_iovec	*vecp = NULL;
+	struct xfs_inode_log_format *ilf;
 
 	ASSERT(ip->i_d.di_version > 1);
 
@@ -425,7 +419,17 @@ xfs_inode_item_format(
 	ilf->ilf_boffset = ip->i_imap.im_boffset;
 	ilf->ilf_fields = XFS_ILOG_CORE;
 	ilf->ilf_size = 2; /* format + core */
-	xlog_finish_iovec(lv, vecp, sizeof(struct xfs_inode_log_format));
+
+	/*
+	 * make sure we don't leak uninitialised data into the log in the case
+	 * when we don't log every field in the inode.
+	 */
+	ilf->ilf_dsize = 0;
+	ilf->ilf_asize = 0;
+	ilf->ilf_pad = 0;
+	memset(&ilf->ilf_u, 0, sizeof(ilf->ilf_u));
+
+	xlog_finish_iovec(lv, vecp, sizeof(*ilf));
 
 	xfs_inode_item_format_core(ip, lv, &vecp);
 	xfs_inode_item_format_data_fork(iip, ilf, lv, &vecp);
@@ -745,7 +749,7 @@ xfs_iflush_done(
 		 */
 		iip = INODE_ITEM(blip);
 		if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) ||
-		    lip->li_flags & XFS_LI_FAILED)
+		    (blip->li_flags & XFS_LI_FAILED))
 			need_ail++;
 
 		blip = next;
@@ -855,44 +859,28 @@ xfs_istale_done(
 }
 
 /*
- * convert an xfs_inode_log_format struct from either 32 or 64 bit versions
- * (which can have different field alignments) to the native version
+ * convert an xfs_inode_log_format struct from the old 32 bit version
+ * (which can have different field alignments) to the native 64 bit version
  */
 int
 xfs_inode_item_format_convert(
-	xfs_log_iovec_t		*buf,
-	xfs_inode_log_format_t	*in_f)
+	struct xfs_log_iovec		*buf,
+	struct xfs_inode_log_format	*in_f)
 {
-	if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
-		xfs_inode_log_format_32_t *in_f32 = buf->i_addr;
-
-		in_f->ilf_type = in_f32->ilf_type;
-		in_f->ilf_size = in_f32->ilf_size;
-		in_f->ilf_fields = in_f32->ilf_fields;
-		in_f->ilf_asize = in_f32->ilf_asize;
-		in_f->ilf_dsize = in_f32->ilf_dsize;
-		in_f->ilf_ino = in_f32->ilf_ino;
-		/* copy biggest field of ilf_u */
-		uuid_copy(&in_f->ilf_u.ilfu_uuid, &in_f32->ilf_u.ilfu_uuid);
-		in_f->ilf_blkno = in_f32->ilf_blkno;
-		in_f->ilf_len = in_f32->ilf_len;
-		in_f->ilf_boffset = in_f32->ilf_boffset;
-		return 0;
-	} else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
-		xfs_inode_log_format_64_t *in_f64 = buf->i_addr;
-
-		in_f->ilf_type = in_f64->ilf_type;
-		in_f->ilf_size = in_f64->ilf_size;
-		in_f->ilf_fields = in_f64->ilf_fields;
-		in_f->ilf_asize = in_f64->ilf_asize;
-		in_f->ilf_dsize = in_f64->ilf_dsize;
-		in_f->ilf_ino = in_f64->ilf_ino;
-		/* copy biggest field of ilf_u */
-		uuid_copy(&in_f->ilf_u.ilfu_uuid, &in_f64->ilf_u.ilfu_uuid);
-		in_f->ilf_blkno = in_f64->ilf_blkno;
-		in_f->ilf_len = in_f64->ilf_len;
-		in_f->ilf_boffset = in_f64->ilf_boffset;
-		return 0;
-	}
-	return -EFSCORRUPTED;
+	struct xfs_inode_log_format_32	*in_f32 = buf->i_addr;
+
+	if (buf->i_len != sizeof(*in_f32))
+		return -EFSCORRUPTED;
+
+	in_f->ilf_type = in_f32->ilf_type;
+	in_f->ilf_size = in_f32->ilf_size;
+	in_f->ilf_fields = in_f32->ilf_fields;
+	in_f->ilf_asize = in_f32->ilf_asize;
+	in_f->ilf_dsize = in_f32->ilf_dsize;
+	in_f->ilf_ino = in_f32->ilf_ino;
+	memcpy(&in_f->ilf_u, &in_f32->ilf_u, sizeof(in_f->ilf_u));
+	in_f->ilf_blkno = in_f32->ilf_blkno;
+	in_f->ilf_len = in_f32->ilf_len;
+	in_f->ilf_boffset = in_f32->ilf_boffset;
+	return 0;
 }
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index 4c7722e325b3..b72373a33cd9 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -48,7 +48,7 @@ extern void xfs_iflush_done(struct xfs_buf *, struct xfs_log_item *);
 extern void xfs_istale_done(struct xfs_buf *, struct xfs_log_item *);
 extern void xfs_iflush_abort(struct xfs_inode *, bool);
 extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
-					 xfs_inode_log_format_t *);
+					 struct xfs_inode_log_format *);
 
 extern struct kmem_zone	*xfs_ili_zone;
 
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 5049e8ab6e30..20dc65fef6a4 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -44,6 +44,7 @@
 #include "xfs_btree.h"
 #include <linux/fsmap.h>
 #include "xfs_fsmap.h"
+#include "scrub/xfs_scrub.h"
 
 #include <linux/capability.h>
 #include <linux/cred.h>
@@ -310,8 +311,8 @@ xfs_readlink_by_handle(
 int
 xfs_set_dmattrs(
 	xfs_inode_t     *ip,
-	u_int		evmask,
-	u_int16_t	state)
+	uint		evmask,
+	uint16_t	state)
 {
 	xfs_mount_t	*mp = ip->i_mount;
 	xfs_trans_t	*tp;
@@ -1088,6 +1089,7 @@ xfs_ioctl_setattr_dax_invalidate(
 	int			*join_flags)
 {
 	struct inode		*inode = VFS_I(ip);
+	struct super_block	*sb = inode->i_sb;
 	int			error;
 
 	*join_flags = 0;
@@ -1100,7 +1102,7 @@ xfs_ioctl_setattr_dax_invalidate(
 	if (fa->fsx_xflags & FS_XFLAG_DAX) {
 		if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)))
 			return -EINVAL;
-		if (ip->i_mount->m_sb.sb_blocksize != PAGE_SIZE)
+		if (bdev_dax_supported(sb, sb->s_blocksize) < 0)
 			return -EINVAL;
 	}
 
@@ -1200,6 +1202,8 @@ out_unlock:
  * 8. for non-realtime files, the extent size hint must be limited
  *    to half the AG size to avoid alignment extending the extent beyond the
  *    limits of the AG.
+ *
+ * Please keep this function in sync with xfs_scrub_inode_extsize.
  */
 static int
 xfs_ioctl_setattr_check_extsize(
@@ -1256,6 +1260,8 @@ xfs_ioctl_setattr_check_extsize(
  * 5. Extent size must be a multiple of the appropriate block size.
  * 6. The extent size hint must be limited to half the AG size to avoid
  *    alignment extending the extent beyond the limits of the AG.
+ *
+ * Please keep this function in sync with xfs_scrub_inode_cowextsize.
  */
 static int
 xfs_ioctl_setattr_check_cowextsize(
@@ -1539,17 +1545,26 @@ out_drop_write:
 	return error;
 }
 
-STATIC int
-xfs_getbmap_format(void **ap, struct getbmapx *bmv)
+static bool
+xfs_getbmap_format(
+	struct kgetbmap		*p,
+	struct getbmapx __user	*u,
+	size_t			recsize)
 {
-	struct getbmap __user	*base = (struct getbmap __user *)*ap;
-
-	/* copy only getbmap portion (not getbmapx) */
-	if (copy_to_user(base, bmv, sizeof(struct getbmap)))
-		return -EFAULT;
-
-	*ap += sizeof(struct getbmap);
-	return 0;
+	if (put_user(p->bmv_offset, &u->bmv_offset) ||
+	    put_user(p->bmv_block, &u->bmv_block) ||
+	    put_user(p->bmv_length, &u->bmv_length) ||
+	    put_user(0, &u->bmv_count) ||
+	    put_user(0, &u->bmv_entries))
+		return false;
+	if (recsize < sizeof(struct getbmapx))
+		return true;
+	if (put_user(0, &u->bmv_iflags) ||
+	    put_user(p->bmv_oflags, &u->bmv_oflags) ||
+	    put_user(0, &u->bmv_unused1) ||
+	    put_user(0, &u->bmv_unused2))
+		return false;
+	return true;
 }
 
 STATIC int
@@ -1559,68 +1574,57 @@ xfs_ioc_getbmap(
 	void			__user *arg)
 {
 	struct getbmapx		bmx = { 0 };
-	int			error;
-
-	/* struct getbmap is a strict subset of struct getbmapx. */
-	if (copy_from_user(&bmx, arg, offsetof(struct getbmapx, bmv_iflags)))
-		return -EFAULT;
+	struct kgetbmap		*buf;
+	size_t			recsize;
+	int			error, i;
 
-	if (bmx.bmv_count < 2)
+	switch (cmd) {
+	case XFS_IOC_GETBMAPA:
+		bmx.bmv_iflags = BMV_IF_ATTRFORK;
+		/*FALLTHRU*/
+	case XFS_IOC_GETBMAP:
+		if (file->f_mode & FMODE_NOCMTIME)
+			bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ;
+		/* struct getbmap is a strict subset of struct getbmapx. */
+		recsize = sizeof(struct getbmap);
+		break;
+	case XFS_IOC_GETBMAPX:
+		recsize = sizeof(struct getbmapx);
+		break;
+	default:
 		return -EINVAL;
+	}
 
-	bmx.bmv_iflags = (cmd == XFS_IOC_GETBMAPA ? BMV_IF_ATTRFORK : 0);
-	if (file->f_mode & FMODE_NOCMTIME)
-		bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ;
-
-	error = xfs_getbmap(XFS_I(file_inode(file)), &bmx, xfs_getbmap_format,
-			    (__force struct getbmap *)arg+1);
-	if (error)
-		return error;
-
-	/* copy back header - only size of getbmap */
-	if (copy_to_user(arg, &bmx, sizeof(struct getbmap)))
-		return -EFAULT;
-	return 0;
-}
-
-STATIC int
-xfs_getbmapx_format(void **ap, struct getbmapx *bmv)
-{
-	struct getbmapx __user	*base = (struct getbmapx __user *)*ap;
-
-	if (copy_to_user(base, bmv, sizeof(struct getbmapx)))
-		return -EFAULT;
-
-	*ap += sizeof(struct getbmapx);
-	return 0;
-}
-
-STATIC int
-xfs_ioc_getbmapx(
-	struct xfs_inode	*ip,
-	void			__user *arg)
-{
-	struct getbmapx		bmx;
-	int			error;
-
-	if (copy_from_user(&bmx, arg, sizeof(bmx)))
+	if (copy_from_user(&bmx, arg, recsize))
 		return -EFAULT;
 
 	if (bmx.bmv_count < 2)
 		return -EINVAL;
+	if (bmx.bmv_count > ULONG_MAX / recsize)
+		return -ENOMEM;
 
-	if (bmx.bmv_iflags & (~BMV_IF_VALID))
-		return -EINVAL;
+	buf = kmem_zalloc_large(bmx.bmv_count * sizeof(*buf), 0);
+	if (!buf)
+		return -ENOMEM;
 
-	error = xfs_getbmap(ip, &bmx, xfs_getbmapx_format,
-			    (__force struct getbmapx *)arg+1);
+	error = xfs_getbmap(XFS_I(file_inode(file)), &bmx, buf);
 	if (error)
-		return error;
+		goto out_free_buf;
 
-	/* copy back header */
-	if (copy_to_user(arg, &bmx, sizeof(struct getbmapx)))
-		return -EFAULT;
+	error = -EFAULT;
+	if (copy_to_user(arg, &bmx, recsize))
+		goto out_free_buf;
+	arg += recsize;
+
+	for (i = 0; i < bmx.bmv_entries; i++) {
+		if (!xfs_getbmap_format(buf + i, arg, recsize))
+			goto out_free_buf;
+		arg += recsize;
+	}
 
+	error = 0;
+out_free_buf:
+	kmem_free(buf);
 	return 0;
 }
 
@@ -1702,6 +1706,30 @@ xfs_ioc_getfsmap(
 	return 0;
 }
 
+STATIC int
+xfs_ioc_scrub_metadata(
+	struct xfs_inode		*ip,
+	void				__user *arg)
+{
+	struct xfs_scrub_metadata	scrub;
+	int				error;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if (copy_from_user(&scrub, arg, sizeof(scrub)))
+		return -EFAULT;
+
+	error = xfs_scrub_metadata(ip, &scrub);
+	if (error)
+		return error;
+
+	if (copy_to_user(arg, &scrub, sizeof(scrub)))
+		return -EFAULT;
+
+	return 0;
+}
+
 int
 xfs_ioc_swapext(
 	xfs_swapext_t	*sxp)
@@ -1877,14 +1905,15 @@ xfs_file_ioctl(
 
 	case XFS_IOC_GETBMAP:
 	case XFS_IOC_GETBMAPA:
-		return xfs_ioc_getbmap(filp, cmd, arg);
-
 	case XFS_IOC_GETBMAPX:
-		return xfs_ioc_getbmapx(ip, arg);
+		return xfs_ioc_getbmap(filp, cmd, arg);
 
 	case FS_IOC_GETFSMAP:
 		return xfs_ioc_getfsmap(ip, arg);
 
+	case XFS_IOC_SCRUB_METADATA:
+		return xfs_ioc_scrub_metadata(ip, arg);
+
 	case XFS_IOC_FD_TO_HANDLE:
 	case XFS_IOC_PATH_TO_HANDLE:
 	case XFS_IOC_PATH_TO_FSHANDLE: {
diff --git a/fs/xfs/xfs_ioctl.h b/fs/xfs/xfs_ioctl.h
index e86c3ea137d2..8de879f0c7d5 100644
--- a/fs/xfs/xfs_ioctl.h
+++ b/fs/xfs/xfs_ioctl.h
@@ -86,7 +86,7 @@ xfs_file_compat_ioctl(
 extern int
 xfs_set_dmattrs(
 	struct xfs_inode	*ip,
-	u_int			evmask,
-	u_int16_t		state);
+	uint			evmask,
+	uint16_t		state);
 
 #endif
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index fa0bc4d46065..35c79e246fde 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -556,6 +556,7 @@ xfs_file_compat_ioctl(
 	case XFS_IOC_ERROR_INJECTION:
 	case XFS_IOC_ERROR_CLEARALL:
 	case FS_IOC_GETFSMAP:
+	case XFS_IOC_SCRUB_METADATA:
 		return xfs_file_ioctl(filp, cmd, p);
 #ifndef BROKEN_X86_ALIGNMENT
 	/* These are handled fine if no alignment issues */
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index a1909bc064e9..18077e2189a9 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -30,6 +30,7 @@
 #include "xfs_bmap_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_trans.h"
 #include "xfs_trans_space.h"
@@ -54,13 +55,13 @@ xfs_bmbt_to_iomap(
 	struct xfs_mount	*mp = ip->i_mount;
 
 	if (imap->br_startblock == HOLESTARTBLOCK) {
-		iomap->blkno = IOMAP_NULL_BLOCK;
+		iomap->addr = IOMAP_NULL_ADDR;
 		iomap->type = IOMAP_HOLE;
 	} else if (imap->br_startblock == DELAYSTARTBLOCK) {
-		iomap->blkno = IOMAP_NULL_BLOCK;
+		iomap->addr = IOMAP_NULL_ADDR;
 		iomap->type = IOMAP_DELALLOC;
 	} else {
-		iomap->blkno = xfs_fsb_to_db(ip, imap->br_startblock);
+		iomap->addr = BBTOB(xfs_fsb_to_db(ip, imap->br_startblock));
 		if (imap->br_state == XFS_EXT_UNWRITTEN)
 			iomap->type = IOMAP_UNWRITTEN;
 		else
@@ -389,7 +390,7 @@ xfs_iomap_prealloc_size(
 	struct xfs_inode	*ip,
 	loff_t			offset,
 	loff_t			count,
-	xfs_extnum_t		idx)
+	struct xfs_iext_cursor	*icur)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
@@ -414,7 +415,7 @@ xfs_iomap_prealloc_size(
 	 */
 	if ((mp->m_flags & XFS_MOUNT_DFLT_IOSIZE) ||
 	    XFS_ISIZE(ip) < XFS_FSB_TO_B(mp, mp->m_dalign) ||
-	    !xfs_iext_get_extent(ifp, idx - 1, &prev) ||
+	    !xfs_iext_peek_prev_extent(ifp, icur, &prev) ||
 	    prev.br_startoff + prev.br_blockcount < offset_fsb)
 		return mp->m_writeio_blocks;
 
@@ -532,7 +533,7 @@ xfs_file_iomap_begin_delay(
 	xfs_fileoff_t		end_fsb;
 	int			error = 0, eof = 0;
 	struct xfs_bmbt_irec	got;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 	xfs_fsblock_t		prealloc_blocks = 0;
 
 	ASSERT(!XFS_IS_REALTIME_INODE(ip));
@@ -557,7 +558,7 @@ xfs_file_iomap_begin_delay(
 			goto out_unlock;
 	}
 
-	eof = !xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got);
+	eof = !xfs_iext_lookup_extent(ip, ifp, offset_fsb, &icur, &got);
 	if (!eof && got.br_startoff <= offset_fsb) {
 		if (xfs_is_reflink_inode(ip)) {
 			bool		shared;
@@ -591,7 +592,8 @@ xfs_file_iomap_begin_delay(
 	end_fsb = min(XFS_B_TO_FSB(mp, offset + count), maxbytes_fsb);
 
 	if (eof) {
-		prealloc_blocks = xfs_iomap_prealloc_size(ip, offset, count, idx);
+		prealloc_blocks = xfs_iomap_prealloc_size(ip, offset, count,
+				&icur);
 		if (prealloc_blocks) {
 			xfs_extlen_t	align;
 			xfs_off_t	end_offset;
@@ -613,7 +615,8 @@ xfs_file_iomap_begin_delay(
 
 retry:
 	error = xfs_bmapi_reserve_delalloc(ip, XFS_DATA_FORK, offset_fsb,
-			end_fsb - offset_fsb, prealloc_blocks, &got, &idx, eof);
+			end_fsb - offset_fsb, prealloc_blocks, &got, &icur,
+			eof);
 	switch (error) {
 	case 0:
 		break;
@@ -829,7 +832,8 @@ int
 xfs_iomap_write_unwritten(
 	xfs_inode_t	*ip,
 	xfs_off_t	offset,
-	xfs_off_t	count)
+	xfs_off_t	count,
+	bool		update_isize)
 {
 	xfs_mount_t	*mp = ip->i_mount;
 	xfs_fileoff_t	offset_fsb;
@@ -840,6 +844,7 @@ xfs_iomap_write_unwritten(
 	xfs_trans_t	*tp;
 	xfs_bmbt_irec_t imap;
 	struct xfs_defer_ops dfops;
+	struct inode	*inode = VFS_I(ip);
 	xfs_fsize_t	i_size;
 	uint		resblks;
 	int		error;
@@ -899,7 +904,8 @@ xfs_iomap_write_unwritten(
 		i_size = XFS_FSB_TO_B(mp, offset_fsb + count_fsb);
 		if (i_size > offset + count)
 			i_size = offset + count;
-
+		if (update_isize && i_size > i_size_read(inode))
+			i_size_write(inode, i_size);
 		i_size = xfs_new_eof(ip, i_size);
 		if (i_size) {
 			ip->i_d.di_size = i_size;
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index 00db3ecea084..ee535065c5d0 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -27,7 +27,7 @@ int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
 			struct xfs_bmbt_irec *, int);
 int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t,
 			struct xfs_bmbt_irec *);
-int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t);
+int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool);
 
 void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *,
 		struct xfs_bmbt_irec *);
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 17081c77ef86..56475fcd76f2 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -160,7 +160,6 @@ xfs_generic_create(
 	if (S_ISCHR(mode) || S_ISBLK(mode)) {
 		if (unlikely(!sysv_valid_dev(rdev) || MAJOR(rdev) & ~0x1ff))
 			return -EINVAL;
-		rdev = sysv_encode_dev(rdev);
 	} else {
 		rdev = 0;
 	}
@@ -535,8 +534,7 @@ xfs_vn_getattr(
 	case S_IFBLK:
 	case S_IFCHR:
 		stat->blksize = BLKDEV_IOSIZE;
-		stat->rdev = MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
-				   sysv_minor(ip->i_df.if_u2.if_rdev));
+		stat->rdev = inode->i_rdev;
 		break;
 	default:
 		if (XFS_IS_REALTIME_INODE(ip)) {
@@ -886,22 +884,6 @@ xfs_setattr_size(
 		return error;
 
 	/*
-	 * We are going to log the inode size change in this transaction so
-	 * any previous writes that are beyond the on disk EOF and the new
-	 * EOF that have not been written out need to be written here.  If we
-	 * do not write the data out, we expose ourselves to the null files
-	 * problem. Note that this includes any block zeroing we did above;
-	 * otherwise those blocks may not be zeroed after a crash.
-	 */
-	if (did_zeroing ||
-	    (newsize > ip->i_d.di_size && oldsize != ip->i_d.di_size)) {
-		error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
-						      ip->i_d.di_size, newsize);
-		if (error)
-			return error;
-	}
-
-	/*
 	 * We've already locked out new page faults, so now we can safely remove
 	 * pages from the page cache knowing they won't get refaulted until we
 	 * drop the XFS_MMAP_EXCL lock after the extent manipulations are
@@ -917,9 +899,29 @@ xfs_setattr_size(
 	 * user visible changes). There's not much we can do about this, except
 	 * to hope that the caller sees ENOMEM and retries the truncate
 	 * operation.
+	 *
+	 * And we update in-core i_size and truncate page cache beyond newsize
+	 * before writeback the [di_size, newsize] range, so we're guaranteed
+	 * not to write stale data past the new EOF on truncate down.
 	 */
 	truncate_setsize(inode, newsize);
 
+	/*
+	 * We are going to log the inode size change in this transaction so
+	 * any previous writes that are beyond the on disk EOF and the new
+	 * EOF that have not been written out need to be written here.  If we
+	 * do not write the data out, we expose ourselves to the null files
+	 * problem. Note that this includes any block zeroing we did above;
+	 * otherwise those blocks may not be zeroed after a crash.
+	 */
+	if (did_zeroing ||
+	    (newsize > ip->i_d.di_size && oldsize != ip->i_d.di_size)) {
+		error = filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
+						ip->i_d.di_size, newsize - 1);
+		if (error)
+			return error;
+	}
+
 	error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
 	if (error)
 		return error;
@@ -1231,18 +1233,6 @@ xfs_setup_inode(
 	inode->i_uid    = xfs_uid_to_kuid(ip->i_d.di_uid);
 	inode->i_gid    = xfs_gid_to_kgid(ip->i_d.di_gid);
 
-	switch (inode->i_mode & S_IFMT) {
-	case S_IFBLK:
-	case S_IFCHR:
-		inode->i_rdev =
-			MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
-			      sysv_minor(ip->i_df.if_u2.if_rdev));
-		break;
-	default:
-		inode->i_rdev = 0;
-		break;
-	}
-
 	i_size_write(inode, ip->i_d.di_size);
 	xfs_diflags_to_iflags(inode, ip);
 
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index c393a2f6d8c3..d58310514423 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -31,16 +31,6 @@
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 
-int
-xfs_internal_inum(
-	xfs_mount_t	*mp,
-	xfs_ino_t	ino)
-{
-	return (ino == mp->m_sb.sb_rbmino || ino == mp->m_sb.sb_rsumino ||
-		(xfs_sb_version_hasquota(&mp->m_sb) &&
-		 xfs_is_quota_inode(&mp->m_sb, ino)));
-}
-
 /*
  * Return stat information for one inode.
  * Return 0 if ok, else errno.
@@ -119,12 +109,11 @@ xfs_bulkstat_one_int(
 
 	switch (dic->di_format) {
 	case XFS_DINODE_FMT_DEV:
-		buf->bs_rdev = ip->i_df.if_u2.if_rdev;
+		buf->bs_rdev = sysv_encode_dev(inode->i_rdev);
 		buf->bs_blksize = BLKDEV_IOSIZE;
 		buf->bs_blocks = 0;
 		break;
 	case XFS_DINODE_FMT_LOCAL:
-	case XFS_DINODE_FMT_UUID:
 		buf->bs_rdev = 0;
 		buf->bs_blksize = mp->m_sb.sb_blocksize;
 		buf->bs_blocks = 0;
diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h
index 17e86e0541af..6ea8b3912fa4 100644
--- a/fs/xfs/xfs_itable.h
+++ b/fs/xfs/xfs_itable.h
@@ -96,6 +96,4 @@ xfs_inumbers(
 	void			__user *buffer, /* buffer with inode info */
 	inumbers_fmt_pf		formatter);
 
-int xfs_internal_inum(struct xfs_mount *mp, xfs_ino_t ino);
-
 #endif	/* __XFS_ITABLE_H__ */
diff --git a/fs/xfs/xfs_linux.h b/fs/xfs/xfs_linux.h
index dcd1292664b3..6282bfc1afa9 100644
--- a/fs/xfs/xfs_linux.h
+++ b/fs/xfs/xfs_linux.h
@@ -142,6 +142,13 @@ typedef __u32			xfs_nlink_t;
 #define SYNCHRONIZE()	barrier()
 #define __return_address __builtin_return_address(0)
 
+/*
+ * Return the address of a label.  Use barrier() so that the optimizer
+ * won't reorder code to refactor the error jumpouts into a single
+ * return, which throws off the reported address.
+ */
+#define __this_address	({ __label__ __here; __here: barrier(); &&__here; })
+
 #define XFS_PROJID_DEFAULT	0
 
 #define MIN(a,b)	(min(a,b))
@@ -243,10 +250,6 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y)
 #define ASSERT(expr)	\
 	(likely(expr) ? (void)0 : assfail(#expr, __FILE__, __LINE__))
 
-#ifndef STATIC
-# define STATIC noinline
-#endif
-
 #else	/* !DEBUG */
 
 #ifdef XFS_WARN
@@ -254,21 +257,15 @@ static inline uint64_t howmany_64(uint64_t x, uint32_t y)
 #define ASSERT(expr)	\
 	(likely(expr) ? (void)0 : asswarn(#expr, __FILE__, __LINE__))
 
-#ifndef STATIC
-# define STATIC static noinline
-#endif
-
 #else	/* !DEBUG && !XFS_WARN */
 
 #define ASSERT(expr)	((void)0)
 
-#ifndef STATIC
-# define STATIC static noinline
-#endif
-
 #endif /* XFS_WARN */
 #endif /* DEBUG */
 
+#define STATIC static noinline
+
 #ifdef CONFIG_XFS_RT
 
 /*
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index c5107c7bc4bf..38d4227895ae 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -22,6 +22,7 @@
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_mount.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_trans.h"
 #include "xfs_trans_priv.h"
@@ -608,6 +609,7 @@ xfs_log_mount(
 	xfs_daddr_t	blk_offset,
 	int		num_bblks)
 {
+	bool		fatal = xfs_sb_version_hascrc(&mp->m_sb);
 	int		error = 0;
 	int		min_logfsbs;
 
@@ -659,9 +661,20 @@ xfs_log_mount(
 			 XFS_FSB_TO_B(mp, mp->m_sb.sb_logblocks),
 			 XFS_MAX_LOG_BYTES);
 		error = -EINVAL;
+	} else if (mp->m_sb.sb_logsunit > 1 &&
+		   mp->m_sb.sb_logsunit % mp->m_sb.sb_blocksize) {
+		xfs_warn(mp,
+		"log stripe unit %u bytes must be a multiple of block size",
+			 mp->m_sb.sb_logsunit);
+		error = -EINVAL;
+		fatal = true;
 	}
 	if (error) {
-		if (xfs_sb_version_hascrc(&mp->m_sb)) {
+		/*
+		 * Log check errors are always fatal on v5; or whenever bad
+		 * metadata leads to a crash.
+		 */
+		if (fatal) {
 			xfs_crit(mp, "AAIEEE! Log failed size checks. Abort!");
 			ASSERT(0);
 			goto out_free_log;
@@ -744,6 +757,7 @@ xfs_log_mount_finish(
 {
 	int	error = 0;
 	bool	readonly = (mp->m_flags & XFS_MOUNT_RDONLY);
+	bool	recovered = mp->m_log->l_flags & XLOG_RECOVERY_NEEDED;
 
 	if (mp->m_flags & XFS_MOUNT_NORECOVERY) {
 		ASSERT(mp->m_flags & XFS_MOUNT_RDONLY);
@@ -780,6 +794,21 @@ xfs_log_mount_finish(
 	mp->m_super->s_flags &= ~MS_ACTIVE;
 	evict_inodes(mp->m_super);
 
+	/*
+	 * Drain the buffer LRU after log recovery. This is required for v4
+	 * filesystems to avoid leaving around buffers with NULL verifier ops,
+	 * but we do it unconditionally to make sure we're always in a clean
+	 * cache state after mount.
+	 *
+	 * Don't push in the error case because the AIL may have pending intents
+	 * that aren't removed until recovery is cancelled.
+	 */
+	if (!error && recovered) {
+		xfs_log_force(mp, XFS_LOG_SYNC);
+		xfs_ail_push_all_sync(mp->m_ail);
+	}
+	xfs_wait_buftarg(mp->m_ddev_targp);
+
 	if (readonly)
 		mp->m_flags |= XFS_MOUNT_RDONLY;
 
@@ -2515,7 +2544,7 @@ next_lv:
 				if (lv)
 					vecp = lv->lv_iovecp;
 			}
-			if (record_cnt == 0 && ordered == false) {
+			if (record_cnt == 0 && !ordered) {
 				if (!lv)
 					return 0;
 				break;
@@ -3734,7 +3763,7 @@ xlog_ticket_alloc(
  * one of the iclogs.  This uses backup pointers stored in a different
  * part of the log in case we trash the log structure.
  */
-void
+STATIC void
 xlog_verify_dest_ptr(
 	struct xlog	*log,
 	void		*ptr)
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 51bf7b827387..129975970d99 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -592,9 +592,9 @@ xlog_valid_lsn(
 	 * a transiently forward state. Instead, we can see the LSN in a
 	 * transiently behind state if we happen to race with a cycle wrap.
 	 */
-	cur_cycle = ACCESS_ONCE(log->l_curr_cycle);
+	cur_cycle = READ_ONCE(log->l_curr_cycle);
 	smp_rmb();
-	cur_block = ACCESS_ONCE(log->l_curr_block);
+	cur_block = READ_ONCE(log->l_curr_block);
 
 	if ((CYCLE_LSN(lsn) > cur_cycle) ||
 	    (CYCLE_LSN(lsn) == cur_cycle && BLOCK_LSN(lsn) > cur_block)) {
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index ee34899396b2..87b1c331f9eb 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -85,17 +85,21 @@ struct xfs_buf_cancel {
  */
 
 /*
- * Verify the given count of basic blocks is valid number of blocks
- * to specify for an operation involving the given XFS log buffer.
- * Returns nonzero if the count is valid, 0 otherwise.
+ * Verify the log-relative block number and length in basic blocks are valid for
+ * an operation involving the given XFS log buffer. Returns true if the fields
+ * are valid, false otherwise.
  */
-
-static inline int
-xlog_buf_bbcount_valid(
+static inline bool
+xlog_verify_bp(
 	struct xlog	*log,
+	xfs_daddr_t	blk_no,
 	int		bbcount)
 {
-	return bbcount > 0 && bbcount <= log->l_logBBsize;
+	if (blk_no < 0 || blk_no >= log->l_logBBsize)
+		return false;
+	if (bbcount <= 0 || (blk_no + bbcount) > log->l_logBBsize)
+		return false;
+	return true;
 }
 
 /*
@@ -110,7 +114,11 @@ xlog_get_bp(
 {
 	struct xfs_buf	*bp;
 
-	if (!xlog_buf_bbcount_valid(log, nbblks)) {
+	/*
+	 * Pass log block 0 since we don't have an addr yet, buffer will be
+	 * verified on read.
+	 */
+	if (!xlog_verify_bp(log, 0, nbblks)) {
 		xfs_warn(log->l_mp, "Invalid block length (0x%x) for buffer",
 			nbblks);
 		XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_HIGH, log->l_mp);
@@ -180,9 +188,10 @@ xlog_bread_noalign(
 {
 	int		error;
 
-	if (!xlog_buf_bbcount_valid(log, nbblks)) {
-		xfs_warn(log->l_mp, "Invalid block length (0x%x) for buffer",
-			nbblks);
+	if (!xlog_verify_bp(log, blk_no, nbblks)) {
+		xfs_warn(log->l_mp,
+			 "Invalid log block/length (0x%llx, 0x%x) for buffer",
+			 blk_no, nbblks);
 		XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_HIGH, log->l_mp);
 		return -EFSCORRUPTED;
 	}
@@ -265,9 +274,10 @@ xlog_bwrite(
 {
 	int		error;
 
-	if (!xlog_buf_bbcount_valid(log, nbblks)) {
-		xfs_warn(log->l_mp, "Invalid block length (0x%x) for buffer",
-			nbblks);
+	if (!xlog_verify_bp(log, blk_no, nbblks)) {
+		xfs_warn(log->l_mp,
+			 "Invalid log block/length (0x%llx, 0x%x) for buffer",
+			 blk_no, nbblks);
 		XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_HIGH, log->l_mp);
 		return -EFSCORRUPTED;
 	}
@@ -753,7 +763,7 @@ xlog_find_head(
 	 * in the in-core log.  The following number can be made tighter if
 	 * we actually look at the block size of the filesystem.
 	 */
-	num_scan_bblks = XLOG_TOTAL_REC_SHIFT(log);
+	num_scan_bblks = min_t(int, log_bbnum, XLOG_TOTAL_REC_SHIFT(log));
 	if (head_blk >= num_scan_bblks) {
 		/*
 		 * We are guaranteed that the entire check can be performed
@@ -2975,7 +2985,7 @@ xlog_recover_inode_pass2(
 	struct xlog_recover_item	*item,
 	xfs_lsn_t			current_lsn)
 {
-	xfs_inode_log_format_t	*in_f;
+	struct xfs_inode_log_format	*in_f;
 	xfs_mount_t		*mp = log->l_mp;
 	xfs_buf_t		*bp;
 	xfs_dinode_t		*dip;
@@ -2989,10 +2999,10 @@ xlog_recover_inode_pass2(
 	uint			isize;
 	int			need_free = 0;
 
-	if (item->ri_buf[0].i_len == sizeof(xfs_inode_log_format_t)) {
+	if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
 		in_f = item->ri_buf[0].i_addr;
 	} else {
-		in_f = kmem_alloc(sizeof(xfs_inode_log_format_t), KM_SLEEP);
+		in_f = kmem_alloc(sizeof(struct xfs_inode_log_format), KM_SLEEP);
 		need_free = 1;
 		error = xfs_inode_item_format_convert(&item->ri_buf[0], in_f);
 		if (error)
@@ -3163,16 +3173,8 @@ xlog_recover_inode_pass2(
 	}
 
 	fields = in_f->ilf_fields;
-	switch (fields & (XFS_ILOG_DEV | XFS_ILOG_UUID)) {
-	case XFS_ILOG_DEV:
+	if (fields & XFS_ILOG_DEV)
 		xfs_dinode_put_rdev(dip, in_f->ilf_u.ilfu_rdev);
-		break;
-	case XFS_ILOG_UUID:
-		memcpy(XFS_DFORK_DPTR(dip),
-		       &in_f->ilf_u.ilfu_uuid,
-		       sizeof(uuid_t));
-		break;
-	}
 
 	if (in_f->ilf_size == 2)
 		goto out_owner_change;
@@ -4297,7 +4299,7 @@ xlog_recover_add_to_trans(
 	char			*dp,
 	int			len)
 {
-	xfs_inode_log_format_t	*in_f;			/* any will do */
+	struct xfs_inode_log_format	*in_f;			/* any will do */
 	xlog_recover_item_t	*item;
 	char			*ptr;
 
@@ -4331,7 +4333,7 @@ xlog_recover_add_to_trans(
 
 	ptr = kmem_alloc(len, KM_SLEEP);
 	memcpy(ptr, dp, len);
-	in_f = (xfs_inode_log_format_t *)ptr;
+	in_f = (struct xfs_inode_log_format *)ptr;
 
 	/* take the tail entry */
 	item = list_entry(trans->r_itemq.prev, xlog_recover_item_t, ri_list);
@@ -5823,7 +5825,7 @@ xlog_recover_cancel(
  * Read all of the agf and agi counters and check that they
  * are consistent with the superblock counters.
  */
-void
+STATIC void
 xlog_recover_check_summary(
 	struct xlog	*log)
 {
diff --git a/fs/xfs/xfs_message.h b/fs/xfs/xfs_message.h
index 85401155750e..34447dca97d1 100644
--- a/fs/xfs/xfs_message.h
+++ b/fs/xfs/xfs_message.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XFS_MESSAGE_H
 #define __XFS_MESSAGE_H 1
 
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index ea7d4b4e50d0..c879b517cc94 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -704,7 +704,7 @@ xfs_mountfs(
 	xfs_set_maxicount(mp);
 
 	/* enable fail_at_unmount as default */
-	mp->m_fail_unmount = 1;
+	mp->m_fail_unmount = true;
 
 	error = xfs_sysfs_init(&mp->m_kobj, &xfs_mp_ktype, NULL, mp->m_fsname);
 	if (error)
@@ -1022,10 +1022,21 @@ xfs_mountfs(
 	xfs_rtunmount_inodes(mp);
  out_rele_rip:
 	IRELE(rip);
-	cancel_delayed_work_sync(&mp->m_reclaim_work);
-	xfs_reclaim_inodes(mp, SYNC_WAIT);
 	/* Clean out dquots that might be in memory after quotacheck. */
 	xfs_qm_unmount(mp);
+	/*
+	 * Cancel all delayed reclaim work and reclaim the inodes directly.
+	 * We have to do this /after/ rtunmount and qm_unmount because those
+	 * two will have scheduled delayed reclaim for the rt/quota inodes.
+	 *
+	 * This is slightly different from the unmountfs call sequence
+	 * because we could be tearing down a partially set up mount.  In
+	 * particular, if log_mount_finish fails we bail out without calling
+	 * qm_unmount_quotas and therefore rely on qm_unmount to release the
+	 * quota inodes.
+	 */
+	cancel_delayed_work_sync(&mp->m_reclaim_work);
+	xfs_reclaim_inodes(mp, SYNC_WAIT);
  out_log_dealloc:
 	mp->m_flags |= XFS_MOUNT_UNMOUNTING;
 	xfs_log_mount_cancel(mp);
diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h
index 0c381d71b242..0492436a053f 100644
--- a/fs/xfs/xfs_ondisk.h
+++ b/fs/xfs/xfs_ondisk.h
@@ -134,7 +134,7 @@ xfs_check_ondisk_structs(void)
 	XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log,		28);
 	XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp,		8);
 	XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32,	52);
-	XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_64,	56);
+	XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format,	56);
 	XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat,	20);
 	XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header,		16);
 }
diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index 2f2dc3c09ad0..aa6c5c193f45 100644
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2014 Christoph Hellwig.
  */
@@ -274,7 +275,7 @@ xfs_fs_commit_blocks(
 					(end - 1) >> PAGE_SHIFT);
 		WARN_ON_ONCE(error);
 
-		error = xfs_iomap_write_unwritten(ip, start, length);
+		error = xfs_iomap_write_unwritten(ip, start, length, false);
 		if (error)
 			goto out_drop_iolock;
 	}
diff --git a/fs/xfs/xfs_pnfs.h b/fs/xfs/xfs_pnfs.h
index b587cb99b2b7..bf45951e28fe 100644
--- a/fs/xfs/xfs_pnfs.h
+++ b/fs/xfs/xfs_pnfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XFS_PNFS_H
 #define _XFS_PNFS_H 1
 
diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c
index de9493253edf..a65108594a07 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -125,7 +125,7 @@ xfs_fs_set_info(
 	struct xfs_mount *mp = XFS_M(sb);
 	struct qc_dqblk newlim;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return -EROFS;
 	if (!XFS_IS_QUOTA_RUNNING(mp))
 		return -ENOSYS;
@@ -175,7 +175,7 @@ xfs_quota_enable(
 {
 	struct xfs_mount	*mp = XFS_M(sb);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return -EROFS;
 	if (!XFS_IS_QUOTA_RUNNING(mp))
 		return -ENOSYS;
@@ -190,7 +190,7 @@ xfs_quota_disable(
 {
 	struct xfs_mount	*mp = XFS_M(sb);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return -EROFS;
 	if (!XFS_IS_QUOTA_RUNNING(mp))
 		return -ENOSYS;
@@ -208,7 +208,7 @@ xfs_fs_rm_xquota(
 	struct xfs_mount	*mp = XFS_M(sb);
 	unsigned int		flags = 0;
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return -EROFS;
 
 	if (XFS_IS_QUOTA_ON(mp))
@@ -279,7 +279,7 @@ xfs_fs_set_dqblk(
 {
 	struct xfs_mount	*mp = XFS_M(sb);
 
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		return -EROFS;
 	if (!XFS_IS_QUOTA_RUNNING(mp))
 		return -ENOSYS;
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 3246815c24d6..cc041a29eb70 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -273,7 +273,7 @@ xfs_reflink_reserve_cow(
 	struct xfs_bmbt_irec	got;
 	int			error = 0;
 	bool			eof = false, trimmed;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 
 	/*
 	 * Search the COW fork extent list first.  This serves two purposes:
@@ -284,7 +284,7 @@ xfs_reflink_reserve_cow(
 	 * tree.
 	 */
 
-	if (!xfs_iext_lookup_extent(ip, ifp, imap->br_startoff, &idx, &got))
+	if (!xfs_iext_lookup_extent(ip, ifp, imap->br_startoff, &icur, &got))
 		eof = true;
 	if (!eof && got.br_startoff <= imap->br_startoff) {
 		trace_xfs_reflink_cow_found(ip, imap);
@@ -312,7 +312,7 @@ xfs_reflink_reserve_cow(
 		return error;
 
 	error = xfs_bmapi_reserve_delalloc(ip, XFS_COW_FORK, imap->br_startoff,
-			imap->br_blockcount, 0, &got, &idx, eof);
+			imap->br_blockcount, 0, &got, &icur, eof);
 	if (error == -ENOSPC || error == -EDQUOT)
 		trace_xfs_reflink_cow_enospc(ip, imap);
 	if (error)
@@ -353,29 +353,22 @@ xfs_reflink_convert_cow(
 	xfs_off_t		offset,
 	xfs_off_t		count)
 {
-	struct xfs_bmbt_irec	got;
-	struct xfs_defer_ops	dfops;
 	struct xfs_mount	*mp = ip->i_mount;
-	struct xfs_ifork	*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 	xfs_fileoff_t		offset_fsb = XFS_B_TO_FSBT(mp, offset);
 	xfs_fileoff_t		end_fsb = XFS_B_TO_FSB(mp, offset + count);
-	xfs_extnum_t		idx;
-	bool			found;
-	int			error = 0;
-
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_filblks_t		count_fsb = end_fsb - offset_fsb;
+	struct xfs_bmbt_irec	imap;
+	struct xfs_defer_ops	dfops;
+	xfs_fsblock_t		first_block = NULLFSBLOCK;
+	int			nimaps = 1, error = 0;
 
-	/* Convert all the extents to real from unwritten. */
-	for (found = xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got);
-	     found && got.br_startoff < end_fsb;
-	     found = xfs_iext_get_extent(ifp, ++idx, &got)) {
-		error = xfs_reflink_convert_cow_extent(ip, &got, offset_fsb,
-				end_fsb - offset_fsb, &dfops);
-		if (error)
-			break;
-	}
+	ASSERT(count != 0);
 
-	/* Finish up. */
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	error = xfs_bmapi_write(NULL, ip, offset_fsb, count_fsb,
+			XFS_BMAPI_COWFORK | XFS_BMAPI_CONVERT |
+			XFS_BMAPI_CONVERT_ONLY, &first_block, 0, &imap, &nimaps,
+			&dfops);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	return error;
 }
@@ -399,7 +392,7 @@ xfs_reflink_allocate_cow(
 	bool			trimmed;
 	xfs_filblks_t		resaligned;
 	xfs_extlen_t		resblks = 0;
-	xfs_extnum_t		idx;
+	struct xfs_iext_cursor	icur;
 
 retry:
 	ASSERT(xfs_is_reflink_inode(ip));
@@ -409,7 +402,7 @@ retry:
 	 * Even if the extent is not shared we might have a preallocation for
 	 * it in the COW fork.  If so use it.
 	 */
-	if (xfs_iext_lookup_extent(ip, ip->i_cowfp, offset_fsb, &idx, &got) &&
+	if (xfs_iext_lookup_extent(ip, ip->i_cowfp, offset_fsb, &icur, &got) &&
 	    got.br_startoff <= offset_fsb) {
 		*shared = true;
 
@@ -496,13 +489,13 @@ xfs_reflink_find_cow_mapping(
 	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 	xfs_fileoff_t			offset_fsb;
 	struct xfs_bmbt_irec		got;
-	xfs_extnum_t			idx;
+	struct xfs_iext_cursor		icur;
 
 	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL | XFS_ILOCK_SHARED));
 	ASSERT(xfs_is_reflink_inode(ip));
 
 	offset_fsb = XFS_B_TO_FSBT(ip->i_mount, offset);
-	if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got))
+	if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &icur, &got))
 		return false;
 	if (got.br_startoff > offset_fsb)
 		return false;
@@ -524,18 +517,18 @@ xfs_reflink_trim_irec_to_next_cow(
 {
 	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 	struct xfs_bmbt_irec		got;
-	xfs_extnum_t			idx;
+	struct xfs_iext_cursor		icur;
 
 	if (!xfs_is_reflink_inode(ip))
 		return;
 
 	/* Find the extent in the CoW fork. */
-	if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got))
+	if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &icur, &got))
 		return;
 
 	/* This is the extent before; try sliding up one. */
 	if (got.br_startoff < offset_fsb) {
-		if (!xfs_iext_get_extent(ifp, idx + 1, &got))
+		if (!xfs_iext_next_extent(ifp, &icur, &got))
 			return;
 	}
 
@@ -562,24 +555,32 @@ xfs_reflink_cancel_cow_blocks(
 {
 	struct xfs_ifork		*ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
 	struct xfs_bmbt_irec		got, del;
-	xfs_extnum_t			idx;
+	struct xfs_iext_cursor		icur;
 	xfs_fsblock_t			firstfsb;
 	struct xfs_defer_ops		dfops;
 	int				error = 0;
 
 	if (!xfs_is_reflink_inode(ip))
 		return 0;
-	if (!xfs_iext_lookup_extent(ip, ifp, offset_fsb, &idx, &got))
+	if (!xfs_iext_lookup_extent_before(ip, ifp, &end_fsb, &icur, &got))
 		return 0;
 
-	while (got.br_startoff < end_fsb) {
+	/* Walk backwards until we're out of the I/O range... */
+	while (got.br_startoff + got.br_blockcount > offset_fsb) {
 		del = got;
 		xfs_trim_extent(&del, offset_fsb, end_fsb - offset_fsb);
+
+		/* Extent delete may have bumped ext forward */
+		if (!del.br_blockcount) {
+			xfs_iext_prev(ifp, &icur);
+			goto next_extent;
+		}
+
 		trace_xfs_reflink_cancel_cow(ip, &del);
 
 		if (isnullstartblock(del.br_startblock)) {
 			error = xfs_bmap_del_extent_delay(ip, XFS_COW_FORK,
-					&idx, &got, &del);
+					&icur, &got, &del);
 			if (error)
 				break;
 		} else if (del.br_state == XFS_EXT_UNWRITTEN || cancel_real) {
@@ -610,10 +611,10 @@ xfs_reflink_cancel_cow_blocks(
 			}
 
 			/* Remove the mapping from the CoW fork. */
-			xfs_bmap_del_extent_cow(ip, &idx, &got, &del);
+			xfs_bmap_del_extent_cow(ip, &icur, &got, &del);
 		}
-
-		if (!xfs_iext_get_extent(ifp, ++idx, &got))
+next_extent:
+		if (!xfs_iext_get_extent(ifp, &icur, &got))
 			break;
 	}
 
@@ -698,7 +699,7 @@ xfs_reflink_end_cow(
 	int				error;
 	unsigned int			resblks;
 	xfs_filblks_t			rlen;
-	xfs_extnum_t			idx;
+	struct xfs_iext_cursor		icur;
 
 	trace_xfs_reflink_end_cow(ip, offset, count);
 
@@ -733,21 +734,22 @@ xfs_reflink_end_cow(
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	xfs_trans_ijoin(tp, ip, 0);
 
-	/* If there is a hole at end_fsb - 1 go to the previous extent */
-	if (!xfs_iext_lookup_extent(ip, ifp, end_fsb - 1, &idx, &got) ||
-	    got.br_startoff > end_fsb) {
-		ASSERT(idx > 0);
-		xfs_iext_get_extent(ifp, --idx, &got);
-	}
+	/*
+	 * In case of racing, overlapping AIO writes no COW extents might be
+	 * left by the time I/O completes for the loser of the race.  In that
+	 * case we are done.
+	 */
+	if (!xfs_iext_lookup_extent_before(ip, ifp, &end_fsb, &icur, &got))
+		goto out_cancel;
 
 	/* Walk backwards until we're out of the I/O range... */
 	while (got.br_startoff + got.br_blockcount > offset_fsb) {
 		del = got;
 		xfs_trim_extent(&del, offset_fsb, end_fsb - offset_fsb);
 
-		/* Extent delete may have bumped idx forward */
+		/* Extent delete may have bumped ext forward */
 		if (!del.br_blockcount) {
-			idx--;
+			xfs_iext_prev(ifp, &icur);
 			goto next_extent;
 		}
 
@@ -759,7 +761,7 @@ xfs_reflink_end_cow(
 		 * allocated but have not yet been involved in a write.
 		 */
 		if (got.br_state == XFS_EXT_UNWRITTEN) {
-			idx--;
+			xfs_iext_prev(ifp, &icur);
 			goto next_extent;
 		}
 
@@ -790,14 +792,14 @@ xfs_reflink_end_cow(
 			goto out_defer;
 
 		/* Remove the mapping from the CoW fork. */
-		xfs_bmap_del_extent_cow(ip, &idx, &got, &del);
+		xfs_bmap_del_extent_cow(ip, &icur, &got, &del);
 
 		xfs_defer_ijoin(&dfops, ip);
 		error = xfs_defer_finish(&tp, &dfops);
 		if (error)
 			goto out_defer;
 next_extent:
-		if (!xfs_iext_get_extent(ifp, idx, &got))
+		if (!xfs_iext_get_extent(ifp, &icur, &got))
 			break;
 	}
 
@@ -809,6 +811,7 @@ next_extent:
 
 out_defer:
 	xfs_defer_cancel(&dfops);
+out_cancel:
 	xfs_trans_cancel(tp);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 out:
@@ -1426,7 +1429,7 @@ xfs_reflink_inode_has_shared_extents(
 	xfs_extlen_t			aglen;
 	xfs_agblock_t			rbno;
 	xfs_extlen_t			rlen;
-	xfs_extnum_t			idx;
+	struct xfs_iext_cursor		icur;
 	bool				found;
 	int				error;
 
@@ -1438,7 +1441,7 @@ xfs_reflink_inode_has_shared_extents(
 	}
 
 	*has_shared = false;
-	found = xfs_iext_lookup_extent(ip, ifp, 0, &idx, &got);
+	found = xfs_iext_lookup_extent(ip, ifp, 0, &icur, &got);
 	while (found) {
 		if (isnullstartblock(got.br_startblock) ||
 		    got.br_state != XFS_EXT_NORM)
@@ -1457,7 +1460,7 @@ xfs_reflink_inode_has_shared_extents(
 			return 0;
 		}
 next:
-		found = xfs_iext_get_extent(ifp, ++idx, &got);
+		found = xfs_iext_next_extent(ifp, &icur, &got);
 	}
 
 	return 0;
diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h
index 79defa722bf1..3f30f846d7f2 100644
--- a/fs/xfs/xfs_rtalloc.h
+++ b/fs/xfs/xfs_rtalloc.h
@@ -138,6 +138,7 @@ int xfs_rtalloc_query_range(struct xfs_trans *tp,
 int xfs_rtalloc_query_all(struct xfs_trans *tp,
 			  xfs_rtalloc_query_range_fn fn,
 			  void *priv);
+bool xfs_verify_rtbno(struct xfs_mount *mp, xfs_rtblock_t rtbno);
 #else
 # define xfs_rtallocate_extent(t,b,min,max,l,f,p,rb)    (ENOSYS)
 # define xfs_rtfree_extent(t,b,l)                       (ENOSYS)
@@ -146,6 +147,7 @@ int xfs_rtalloc_query_all(struct xfs_trans *tp,
 # define xfs_rtalloc_query_range(t,l,h,f,p)             (ENOSYS)
 # define xfs_rtalloc_query_all(t,f,p)                   (ENOSYS)
 # define xfs_rtbuf_get(m,t,b,i,p)                       (ENOSYS)
+# define xfs_verify_rtbno(m, r)			(false)
 static inline int		/* error */
 xfs_rtmount_init(
 	xfs_mount_t	*mp)	/* file system mount structure */
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 3008f31753df..f663022353c0 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -210,7 +210,7 @@ xfs_parseargs(
 	/*
 	 * Copy binary VFS mount flags we are interested in.
 	 */
-	if (sb->s_flags & MS_RDONLY)
+	if (sb_rdonly(sb))
 		mp->m_flags |= XFS_MOUNT_RDONLY;
 	if (sb->s_flags & MS_DIRSYNC)
 		mp->m_flags |= XFS_MOUNT_DIRSYNC;
@@ -1637,7 +1637,7 @@ xfs_fs_fill_super(
 
 	/* version 5 superblocks support inode version counters. */
 	if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5)
-		sb->s_flags |= MS_I_VERSION;
+		sb->s_flags |= SB_I_VERSION;
 
 	if (mp->m_flags & XFS_MOUNT_DAX) {
 		xfs_warn(mp,
@@ -1654,6 +1654,16 @@ xfs_fs_fill_super(
 		"DAX and reflink have not been tested together!");
 	}
 
+	if (mp->m_flags & XFS_MOUNT_DISCARD) {
+		struct request_queue *q = bdev_get_queue(sb->s_bdev);
+
+		if (!blk_queue_discard(q)) {
+			xfs_warn(mp, "mounting with \"discard\" option, but "
+					"the device does not support discard");
+			mp->m_flags &= ~XFS_MOUNT_DISCARD;
+		}
+	}
+
 	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
 		if (mp->m_sb.sb_rblocks) {
 			xfs_alert(mp,
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index bb5514688d47..515ba042d75c 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -218,53 +218,15 @@ TRACE_EVENT(xfs_attr_list_node_descend,
 		   __entry->bt_before)
 );
 
-TRACE_EVENT(xfs_iext_insert,
-	TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx,
-		 struct xfs_bmbt_irec *r, int state, unsigned long caller_ip),
-	TP_ARGS(ip, idx, r, state, caller_ip),
-	TP_STRUCT__entry(
-		__field(dev_t, dev)
-		__field(xfs_ino_t, ino)
-		__field(xfs_extnum_t, idx)
-		__field(xfs_fileoff_t, startoff)
-		__field(xfs_fsblock_t, startblock)
-		__field(xfs_filblks_t, blockcount)
-		__field(xfs_exntst_t, state)
-		__field(int, bmap_state)
-		__field(unsigned long, caller_ip)
-	),
-	TP_fast_assign(
-		__entry->dev = VFS_I(ip)->i_sb->s_dev;
-		__entry->ino = ip->i_ino;
-		__entry->idx = idx;
-		__entry->startoff = r->br_startoff;
-		__entry->startblock = r->br_startblock;
-		__entry->blockcount = r->br_blockcount;
-		__entry->state = r->br_state;
-		__entry->bmap_state = state;
-		__entry->caller_ip = caller_ip;
-	),
-	TP_printk("dev %d:%d ino 0x%llx state %s idx %ld "
-		  "offset %lld block %lld count %lld flag %d caller %ps",
-		  MAJOR(__entry->dev), MINOR(__entry->dev),
-		  __entry->ino,
-		  __print_flags(__entry->bmap_state, "|", XFS_BMAP_EXT_FLAGS),
-		  (long)__entry->idx,
-		  __entry->startoff,
-		  (int64_t)__entry->startblock,
-		  __entry->blockcount,
-		  __entry->state,
-		  (char *)__entry->caller_ip)
-);
-
 DECLARE_EVENT_CLASS(xfs_bmap_class,
-	TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx, int state,
+	TP_PROTO(struct xfs_inode *ip, struct xfs_iext_cursor *cur, int state,
 		 unsigned long caller_ip),
-	TP_ARGS(ip, idx, state, caller_ip),
+	TP_ARGS(ip, cur, state, caller_ip),
 	TP_STRUCT__entry(
 		__field(dev_t, dev)
 		__field(xfs_ino_t, ino)
-		__field(xfs_extnum_t, idx)
+		__field(void *, leaf);
+		__field(int, pos);
 		__field(xfs_fileoff_t, startoff)
 		__field(xfs_fsblock_t, startblock)
 		__field(xfs_filblks_t, blockcount)
@@ -277,10 +239,11 @@ DECLARE_EVENT_CLASS(xfs_bmap_class,
 		struct xfs_bmbt_irec	r;
 
 		ifp = xfs_iext_state_to_fork(ip, state);
-		xfs_bmbt_get_all(xfs_iext_get_ext(ifp, idx), &r);
+		xfs_iext_get_extent(ifp, cur, &r);
 		__entry->dev = VFS_I(ip)->i_sb->s_dev;
 		__entry->ino = ip->i_ino;
-		__entry->idx = idx;
+		__entry->leaf = cur->leaf;
+		__entry->pos = cur->pos;
 		__entry->startoff = r.br_startoff;
 		__entry->startblock = r.br_startblock;
 		__entry->blockcount = r.br_blockcount;
@@ -288,12 +251,13 @@ DECLARE_EVENT_CLASS(xfs_bmap_class,
 		__entry->bmap_state = state;
 		__entry->caller_ip = caller_ip;
 	),
-	TP_printk("dev %d:%d ino 0x%llx state %s idx %ld "
+	TP_printk("dev %d:%d ino 0x%llx state %s cur 0x%p/%d "
 		  "offset %lld block %lld count %lld flag %d caller %ps",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->ino,
 		  __print_flags(__entry->bmap_state, "|", XFS_BMAP_EXT_FLAGS),
-		  (long)__entry->idx,
+		  __entry->leaf,
+		  __entry->pos,
 		  __entry->startoff,
 		  (int64_t)__entry->startblock,
 		  __entry->blockcount,
@@ -303,13 +267,15 @@ DECLARE_EVENT_CLASS(xfs_bmap_class,
 
 #define DEFINE_BMAP_EVENT(name) \
 DEFINE_EVENT(xfs_bmap_class, name, \
-	TP_PROTO(struct xfs_inode *ip, xfs_extnum_t idx, int state, \
+	TP_PROTO(struct xfs_inode *ip, struct xfs_iext_cursor *cur, int state, \
 		 unsigned long caller_ip), \
-	TP_ARGS(ip, idx, state, caller_ip))
+	TP_ARGS(ip, cur, state, caller_ip))
+DEFINE_BMAP_EVENT(xfs_iext_insert);
 DEFINE_BMAP_EVENT(xfs_iext_remove);
 DEFINE_BMAP_EVENT(xfs_bmap_pre_update);
 DEFINE_BMAP_EVENT(xfs_bmap_post_update);
-DEFINE_BMAP_EVENT(xfs_extlist);
+DEFINE_BMAP_EVENT(xfs_read_extent);
+DEFINE_BMAP_EVENT(xfs_write_extent);
 
 DECLARE_EVENT_CLASS(xfs_buf_class,
 	TP_PROTO(struct xfs_buf *bp, unsigned long caller_ip),
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 354368a906e5..cef89f7127d3 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -25,6 +25,7 @@
 #include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_trace.h"
+#include "xfs_errortag.h"
 #include "xfs_error.h"
 #include "xfs_log.h"
 
@@ -514,11 +515,26 @@ xfsaild(
 	current->flags |= PF_MEMALLOC;
 	set_freezable();
 
-	while (!kthread_should_stop()) {
+	while (1) {
 		if (tout && tout <= 20)
-			__set_current_state(TASK_KILLABLE);
+			set_current_state(TASK_KILLABLE);
 		else
-			__set_current_state(TASK_INTERRUPTIBLE);
+			set_current_state(TASK_INTERRUPTIBLE);
+
+		/*
+		 * Check kthread_should_stop() after we set the task state
+		 * to guarantee that we either see the stop bit and exit or
+		 * the task state is reset to runnable such that it's not
+		 * scheduled out indefinitely and detects the stop bit at
+		 * next iteration.
+		 *
+		 * A memory barrier is included in above task state set to
+		 * serialize again kthread_stop().
+		 */
+		if (kthread_should_stop()) {
+			__set_current_state(TASK_RUNNING);
+			break;
+		}
 
 		spin_lock(&ailp->xa_lock);
 
diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index ad54610ea6cd..17d61b1f2511 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -126,8 +126,12 @@ struct acpi_exception_info {
 #define AE_NOT_CONFIGURED               EXCEP_ENV (0x001C)
 #define AE_ACCESS                       EXCEP_ENV (0x001D)
 #define AE_IO_ERROR                     EXCEP_ENV (0x001E)
+#define AE_NUMERIC_OVERFLOW             EXCEP_ENV (0x001F)
+#define AE_HEX_OVERFLOW                 EXCEP_ENV (0x0020)
+#define AE_DECIMAL_OVERFLOW             EXCEP_ENV (0x0021)
+#define AE_OCTAL_OVERFLOW               EXCEP_ENV (0x0022)
 
-#define AE_CODE_ENV_MAX                 0x001E
+#define AE_CODE_ENV_MAX                 0x0022
 
 /*
  * Programmer exceptions
@@ -263,7 +267,15 @@ static const struct acpi_exception_info acpi_gbl_exception_names_env[] = {
 	EXCEP_TXT("AE_NOT_CONFIGURED",
 		  "The interface is not part of the current subsystem configuration"),
 	EXCEP_TXT("AE_ACCESS", "Permission denied for the requested operation"),
-	EXCEP_TXT("AE_IO_ERROR", "An I/O error occurred")
+	EXCEP_TXT("AE_IO_ERROR", "An I/O error occurred"),
+	EXCEP_TXT("AE_NUMERIC_OVERFLOW",
+		  "Overflow during string-to-integer conversion"),
+	EXCEP_TXT("AE_HEX_OVERFLOW",
+		  "Overflow during ASCII hex-to-binary conversion"),
+	EXCEP_TXT("AE_DECIMAL_OVERFLOW",
+		  "Overflow during ASCII decimal-to-binary conversion"),
+	EXCEP_TXT("AE_OCTAL_OVERFLOW",
+		  "Overflow during ASCII octal-to-binary conversion")
 };
 
 static const struct acpi_exception_info acpi_gbl_exception_names_pgm[] = {
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index dedf9d789166..f849be28e082 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -211,7 +211,7 @@ struct acpi_device_flags {
 	u32 of_compatible_ok:1;
 	u32 coherent_dma:1;
 	u32 cca_seen:1;
-	u32 spi_i2c_slave:1;
+	u32 serial_bus_slave:1;
 	u32 reserved:19;
 };
 
@@ -399,17 +399,12 @@ extern const struct fwnode_operations acpi_device_fwnode_ops;
 extern const struct fwnode_operations acpi_data_fwnode_ops;
 extern const struct fwnode_operations acpi_static_fwnode_ops;
 
+bool is_acpi_device_node(const struct fwnode_handle *fwnode);
+bool is_acpi_data_node(const struct fwnode_handle *fwnode);
+
 static inline bool is_acpi_node(const struct fwnode_handle *fwnode)
 {
-	return !IS_ERR_OR_NULL(fwnode) &&
-		(fwnode->ops == &acpi_device_fwnode_ops
-		 || fwnode->ops == &acpi_data_fwnode_ops);
-}
-
-static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
-{
-	return !IS_ERR_OR_NULL(fwnode) &&
-		fwnode->ops == &acpi_device_fwnode_ops;
+	return (is_acpi_device_node(fwnode) || is_acpi_data_node(fwnode));
 }
 
 #define to_acpi_device_node(__fwnode)					\
@@ -422,11 +417,6 @@ static inline bool is_acpi_device_node(const struct fwnode_handle *fwnode)
 			NULL;						\
 	})
 
-static inline bool is_acpi_data_node(const struct fwnode_handle *fwnode)
-{
-	return !IS_ERR_OR_NULL(fwnode) && fwnode->ops == &acpi_data_fwnode_ops;
-}
-
 #define to_acpi_data_node(__fwnode)					\
 	({								\
 		typeof(__fwnode) __to_acpi_data_node_fwnode = __fwnode;	\
diff --git a/include/acpi/acpi_io.h b/include/acpi/acpi_io.h
index 303315b9693f..d0633fc1fc15 100644
--- a/include/acpi/acpi_io.h
+++ b/include/acpi/acpi_io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACPI_IO_H_
 #define _ACPI_IO_H_
 
diff --git a/include/acpi/acpi_numa.h b/include/acpi/acpi_numa.h
index 1e3a74f94131..fdebcfc6c8df 100644
--- a/include/acpi/acpi_numa.h
+++ b/include/acpi/acpi_numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_NUMA_H
 #define __ACPI_NUMA_H
 
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index c66eb8ffa454..d5c0f5153c4e 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -287,6 +287,8 @@ acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
 /*
  * Platform and hardware-independent physical memory interfaces
  */
+int acpi_os_read_iomem(void __iomem *virt_addr, u64 *value, u32 width);
+
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_memory
 acpi_status
 acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 53c5e2f7bcec..e1dd1a8d42b6 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20170728
+#define ACPI_CA_VERSION                 0x20170831
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 6b8714a428b6..7a89e6de94da 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -69,6 +69,7 @@
 #define ACPI_SIG_HEST           "HEST"	/* Hardware Error Source Table */
 #define ACPI_SIG_MADT           "APIC"	/* Multiple APIC Description Table */
 #define ACPI_SIG_MSCT           "MSCT"	/* Maximum System Characteristics Table */
+#define ACPI_SIG_PDTT           "PDTT"	/* Processor Debug Trigger Table */
 #define ACPI_SIG_PPTT           "PPTT"	/* Processor Properties Topology Table */
 #define ACPI_SIG_SBST           "SBST"	/* Smart Battery Specification Table */
 #define ACPI_SIG_SLIT           "SLIT"	/* System Locality Distance Information Table */
@@ -1282,6 +1283,35 @@ struct acpi_nfit_flush_address {
 
 /*******************************************************************************
  *
+ * PDTT - Processor Debug Trigger Table (ACPI 6.2)
+ *        Version 0
+ *
+ ******************************************************************************/
+
+struct acpi_table_pdtt {
+	struct acpi_table_header header;	/* Common ACPI table header */
+	u8 trigger_count;
+	u8 reserved[3];
+	u32 array_offset;
+};
+
+/*
+ * PDTT Communication Channel Identifier Structure.
+ * The number of these structures is defined by trigger_count above,
+ * starting at array_offset.
+ */
+struct acpi_pdtt_channel {
+	u16 sub_channel_id;
+};
+
+/* Mask and Flags for above */
+
+#define ACPI_PDTT_SUBCHANNEL_ID_MASK        0x00FF
+#define ACPI_PDTT_RUNTIME_TRIGGER           (1<<8)
+#define ACPI_PPTT_WAIT_COMPLETION           (1<<9)
+
+/*******************************************************************************
+ *
  * PPTT - Processor Properties Topology Table (ACPI 6.2)
  *        Version 1
  *
diff --git a/include/acpi/apei.h b/include/acpi/apei.h
index c46694abea28..680f80960c3d 100644
--- a/include/acpi/apei.h
+++ b/include/acpi/apei.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * apei.h - ACPI Platform Error Interface
  */
@@ -50,7 +51,6 @@ int erst_clear(u64 record_id);
 
 int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data);
 void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err);
-void arch_apei_flush_tlb_one(unsigned long addr);
 
 #endif
 #endif
diff --git a/include/acpi/button.h b/include/acpi/button.h
index 1cad8b2d460c..3a2b8535dec6 100644
--- a/include/acpi/button.h
+++ b/include/acpi/button.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ACPI_BUTTON_H
 #define ACPI_BUTTON_H
 
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 9061c5c743b3..8feb0c866ee0 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GHES_H
 #define GHES_H
 
diff --git a/include/acpi/pcc.h b/include/acpi/pcc.h
index 8caa79c61703..cd6ef45e614e 100644
--- a/include/acpi/pcc.h
+++ b/include/acpi/pcc.h
@@ -13,6 +13,7 @@
 #include <linux/mailbox_controller.h>
 #include <linux/mailbox_client.h>
 
+#define MAX_PCC_SUBSPACES	256
 #ifdef CONFIG_PCC
 extern struct mbox_chan *pcc_mbox_request_channel(struct mbox_client *cl,
 						  int subspace_id);
diff --git a/include/acpi/pdc_intel.h b/include/acpi/pdc_intel.h
index 552637b0d051..967c552d1cd3 100644
--- a/include/acpi/pdc_intel.h
+++ b/include/acpi/pdc_intel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* _PDC bit definition for Intel processors */
 
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index c1ba00fc4888..d591bb77f592 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_PROCESSOR_H
 #define __ACPI_PROCESSOR_H
 
diff --git a/include/acpi/reboot.h b/include/acpi/reboot.h
index 0419184ce886..14122fc55bbe 100644
--- a/include/acpi/reboot.h
+++ b/include/acpi/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_REBOOT_H
 #define __ACPI_REBOOT_H
 
diff --git a/include/acpi/video.h b/include/acpi/video.h
index bfe484da55d2..db8548ff03ce 100644
--- a/include/acpi/video.h
+++ b/include/acpi/video.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACPI_VIDEO_H
 #define __ACPI_VIDEO_H
 
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
index 928fd66b1271..89f3b03b1445 100644
--- a/include/asm-generic/4level-fixup.h
+++ b/include/asm-generic/4level-fixup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _4LEVEL_FIXUP_H
 #define _4LEVEL_FIXUP_H
 
diff --git a/include/asm-generic/5level-fixup.h b/include/asm-generic/5level-fixup.h
index b5ca82dc4175..dfbd9d990637 100644
--- a/include/asm-generic/5level-fixup.h
+++ b/include/asm-generic/5level-fixup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _5LEVEL_FIXUP_H
 #define _5LEVEL_FIXUP_H
 
diff --git a/include/asm-generic/asm-prototypes.h b/include/asm-generic/asm-prototypes.h
index 939869c772b1..2fa2bc208383 100644
--- a/include/asm-generic/asm-prototypes.h
+++ b/include/asm-generic/asm-prototypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/bitops.h>
 #undef __memset
 extern void *__memset(void *, int, __kernel_size_t);
diff --git a/include/asm-generic/atomic-long.h b/include/asm-generic/atomic-long.h
index 288cc9e96395..34a028a7bcc5 100644
--- a/include/asm-generic/atomic-long.h
+++ b/include/asm-generic/atomic-long.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_ATOMIC_LONG_H
 #define _ASM_GENERIC_ATOMIC_LONG_H
 /*
@@ -243,4 +244,7 @@ static inline long atomic_long_add_unless(atomic_long_t *l, long a, long u)
 #define atomic_long_inc_not_zero(l) \
 	ATOMIC_LONG_PFX(_inc_not_zero)((ATOMIC_LONG_PFX(_t) *)(l))
 
+#define atomic_long_cond_read_acquire(v, c) \
+	ATOMIC_LONG_PFX(_cond_read_acquire)((ATOMIC_LONG_PFX(_t) *)(v), (c))
+
 #endif  /*  _ASM_GENERIC_ATOMIC_LONG_H  */
diff --git a/include/asm-generic/audit_change_attr.h b/include/asm-generic/audit_change_attr.h
index a1865537339b..331670807cf0 100644
--- a/include/asm-generic/audit_change_attr.h
+++ b/include/asm-generic/audit_change_attr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_chmod
 __NR_chmod,
 #endif
diff --git a/include/asm-generic/audit_dir_write.h b/include/asm-generic/audit_dir_write.h
index 7b61db4fe72b..8fb83b43006a 100644
--- a/include/asm-generic/audit_dir_write.h
+++ b/include/asm-generic/audit_dir_write.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_rename
 __NR_rename,
 #endif
diff --git a/include/asm-generic/audit_read.h b/include/asm-generic/audit_read.h
index 3b249cb857dc..7bb7b5a83ae2 100644
--- a/include/asm-generic/audit_read.h
+++ b/include/asm-generic/audit_read.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_readlink
 __NR_readlink,
 #endif
diff --git a/include/asm-generic/audit_write.h b/include/asm-generic/audit_write.h
index 274575d7129f..dfc52b3c103f 100644
--- a/include/asm-generic/audit_write.h
+++ b/include/asm-generic/audit_write.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <asm-generic/audit_dir_write.h>
 __NR_acct,
 #ifdef __NR_swapon
diff --git a/include/asm-generic/bitops.h b/include/asm-generic/bitops.h
index dcdcacf2fd2b..bfc96bf6606e 100644
--- a/include/asm-generic/bitops.h
+++ b/include/asm-generic/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BITOPS_H
 #define __ASM_GENERIC_BITOPS_H
 
diff --git a/include/asm-generic/bitops/__ffs.h b/include/asm-generic/bitops/__ffs.h
index 937d7c435575..39e56e1c7203 100644
--- a/include/asm-generic/bitops/__ffs.h
+++ b/include/asm-generic/bitops/__ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS___FFS_H_
 #define _ASM_GENERIC_BITOPS___FFS_H_
 
diff --git a/include/asm-generic/bitops/__fls.h b/include/asm-generic/bitops/__fls.h
index a60a7ccb6782..03f721a8a2b1 100644
--- a/include/asm-generic/bitops/__fls.h
+++ b/include/asm-generic/bitops/__fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS___FLS_H_
 #define _ASM_GENERIC_BITOPS___FLS_H_
 
diff --git a/include/asm-generic/bitops/arch_hweight.h b/include/asm-generic/bitops/arch_hweight.h
index 6a211f40665c..c2705e1d220d 100644
--- a/include/asm-generic/bitops/arch_hweight.h
+++ b/include/asm-generic/bitops/arch_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_ARCH_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_ARCH_HWEIGHT_H_
 
diff --git a/include/asm-generic/bitops/atomic.h b/include/asm-generic/bitops/atomic.h
index 49673510b484..04deffaf5f7d 100644
--- a/include/asm-generic/bitops/atomic.h
+++ b/include/asm-generic/bitops/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_ATOMIC_H_
 #define _ASM_GENERIC_BITOPS_ATOMIC_H_
 
diff --git a/include/asm-generic/bitops/builtin-__ffs.h b/include/asm-generic/bitops/builtin-__ffs.h
index 90041e3a41f0..87024da44d10 100644
--- a/include/asm-generic/bitops/builtin-__ffs.h
+++ b/include/asm-generic/bitops/builtin-__ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN___FFS_H_
 
diff --git a/include/asm-generic/bitops/builtin-__fls.h b/include/asm-generic/bitops/builtin-__fls.h
index 0248f386635f..43a5aa9afbdb 100644
--- a/include/asm-generic/bitops/builtin-__fls.h
+++ b/include/asm-generic/bitops/builtin-__fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN___FLS_H_
 
diff --git a/include/asm-generic/bitops/builtin-ffs.h b/include/asm-generic/bitops/builtin-ffs.h
index 064825829e1c..458c85ebcd15 100644
--- a/include/asm-generic/bitops/builtin-ffs.h
+++ b/include/asm-generic/bitops/builtin-ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN_FFS_H_
 
diff --git a/include/asm-generic/bitops/builtin-fls.h b/include/asm-generic/bitops/builtin-fls.h
index eda652d0ac7f..62daf940989d 100644
--- a/include/asm-generic/bitops/builtin-fls.h
+++ b/include/asm-generic/bitops/builtin-fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
 #define _ASM_GENERIC_BITOPS_BUILTIN_FLS_H_
 
diff --git a/include/asm-generic/bitops/const_hweight.h b/include/asm-generic/bitops/const_hweight.h
index 0a7e06623470..149faeeeeaf2 100644
--- a/include/asm-generic/bitops/const_hweight.h
+++ b/include/asm-generic/bitops/const_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
 
diff --git a/include/asm-generic/bitops/ext2-atomic-setbit.h b/include/asm-generic/bitops/ext2-atomic-setbit.h
index 5a0997857b34..b041cbf0d899 100644
--- a/include/asm-generic/bitops/ext2-atomic-setbit.h
+++ b/include/asm-generic/bitops/ext2-atomic-setbit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_
 #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_SETBIT_H_
 
diff --git a/include/asm-generic/bitops/ext2-atomic.h b/include/asm-generic/bitops/ext2-atomic.h
index 87f0f109d7f1..0cfc3180b074 100644
--- a/include/asm-generic/bitops/ext2-atomic.h
+++ b/include/asm-generic/bitops/ext2-atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
 #define _ASM_GENERIC_BITOPS_EXT2_ATOMIC_H_
 
diff --git a/include/asm-generic/bitops/ffs.h b/include/asm-generic/bitops/ffs.h
index fbbb43af7dc0..e81868b2c0f0 100644
--- a/include/asm-generic/bitops/ffs.h
+++ b/include/asm-generic/bitops/ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FFS_H_
 #define _ASM_GENERIC_BITOPS_FFS_H_
 
diff --git a/include/asm-generic/bitops/ffz.h b/include/asm-generic/bitops/ffz.h
index 6744bd4cdf46..0d010085fdec 100644
--- a/include/asm-generic/bitops/ffz.h
+++ b/include/asm-generic/bitops/ffz.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FFZ_H_
 #define _ASM_GENERIC_BITOPS_FFZ_H_
 
diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h
index 998d4d544f18..1ba611e16fa0 100644
--- a/include/asm-generic/bitops/find.h
+++ b/include/asm-generic/bitops/find.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FIND_H_
 #define _ASM_GENERIC_BITOPS_FIND_H_
 
diff --git a/include/asm-generic/bitops/fls.h b/include/asm-generic/bitops/fls.h
index 0576d1f42f43..753aecaab641 100644
--- a/include/asm-generic/bitops/fls.h
+++ b/include/asm-generic/bitops/fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FLS_H_
 #define _ASM_GENERIC_BITOPS_FLS_H_
 
diff --git a/include/asm-generic/bitops/fls64.h b/include/asm-generic/bitops/fls64.h
index b097cf8444e3..866f2b2304ff 100644
--- a/include/asm-generic/bitops/fls64.h
+++ b/include/asm-generic/bitops/fls64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FLS64_H_
 #define _ASM_GENERIC_BITOPS_FLS64_H_
 
diff --git a/include/asm-generic/bitops/hweight.h b/include/asm-generic/bitops/hweight.h
index a94d6519c7ed..6bf1bba83589 100644
--- a/include/asm-generic/bitops/hweight.h
+++ b/include/asm-generic/bitops/hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_HWEIGHT_H_
 
diff --git a/include/asm-generic/bitops/le.h b/include/asm-generic/bitops/le.h
index 61731543c00e..188d3eba3ace 100644
--- a/include/asm-generic/bitops/le.h
+++ b/include/asm-generic/bitops/le.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_LE_H_
 #define _ASM_GENERIC_BITOPS_LE_H_
 
diff --git a/include/asm-generic/bitops/lock.h b/include/asm-generic/bitops/lock.h
index 8ef0ccbf8167..bc397573c43a 100644
--- a/include/asm-generic/bitops/lock.h
+++ b/include/asm-generic/bitops/lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_LOCK_H_
 #define _ASM_GENERIC_BITOPS_LOCK_H_
 
diff --git a/include/asm-generic/bitops/non-atomic.h b/include/asm-generic/bitops/non-atomic.h
index 697cc2b7e0f0..7e10c4b50c5d 100644
--- a/include/asm-generic/bitops/non-atomic.h
+++ b/include/asm-generic/bitops/non-atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_NON_ATOMIC_H_
 #define _ASM_GENERIC_BITOPS_NON_ATOMIC_H_
 
diff --git a/include/asm-generic/bitops/sched.h b/include/asm-generic/bitops/sched.h
index 604fab7031a6..86470cfcef60 100644
--- a/include/asm-generic/bitops/sched.h
+++ b/include/asm-generic/bitops/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_SCHED_H_
 #define _ASM_GENERIC_BITOPS_SCHED_H_
 
diff --git a/include/asm-generic/bitsperlong.h b/include/asm-generic/bitsperlong.h
index d1d70aa19021..3905c1c93dc2 100644
--- a/include/asm-generic/bitsperlong.h
+++ b/include/asm-generic/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BITS_PER_LONG
 #define __ASM_GENERIC_BITS_PER_LONG
 
diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h
index 87191357d303..af2cc94a61bf 100644
--- a/include/asm-generic/bug.h
+++ b/include/asm-generic/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BUG_H
 #define _ASM_GENERIC_BUG_H
 
diff --git a/include/asm-generic/bugs.h b/include/asm-generic/bugs.h
index 6c4f62ea714d..69021830f078 100644
--- a/include/asm-generic/bugs.h
+++ b/include/asm-generic/bugs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BUGS_H
 #define __ASM_GENERIC_BUGS_H
 /*
diff --git a/include/asm-generic/cache.h b/include/asm-generic/cache.h
index 1bfcfe5c2237..60386e164246 100644
--- a/include/asm-generic/cache.h
+++ b/include/asm-generic/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CACHE_H
 #define __ASM_GENERIC_CACHE_H
 /*
diff --git a/include/asm-generic/cacheflush.h b/include/asm-generic/cacheflush.h
index 87bc536ccde3..0dd47a6db2cf 100644
--- a/include/asm-generic/cacheflush.h
+++ b/include/asm-generic/cacheflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_CACHEFLUSH_H
 #define __ASM_CACHEFLUSH_H
 
diff --git a/include/asm-generic/checksum.h b/include/asm-generic/checksum.h
index 3150cbd8eb21..34785c0f57b0 100644
--- a/include/asm-generic/checksum.h
+++ b/include/asm-generic/checksum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CHECKSUM_H
 #define __ASM_GENERIC_CHECKSUM_H
 
diff --git a/include/asm-generic/cmpxchg-local.h b/include/asm-generic/cmpxchg-local.h
index 70bef78912b7..f17f14f84d09 100644
--- a/include/asm-generic/cmpxchg-local.h
+++ b/include/asm-generic/cmpxchg-local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CMPXCHG_LOCAL_H
 #define __ASM_GENERIC_CMPXCHG_LOCAL_H
 
diff --git a/include/asm-generic/cmpxchg.h b/include/asm-generic/cmpxchg.h
index e5f9080e8e86..9a24510cd8c1 100644
--- a/include/asm-generic/cmpxchg.h
+++ b/include/asm-generic/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generic UP xchg and cmpxchg using interrupt disablement.  Does not
  * support SMP.
diff --git a/include/asm-generic/current.h b/include/asm-generic/current.h
index 5e86f6ae7cab..3a2e224b9fa0 100644
--- a/include/asm-generic/current.h
+++ b/include/asm-generic/current.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_CURRENT_H
 #define __ASM_GENERIC_CURRENT_H
 
diff --git a/include/asm-generic/delay.h b/include/asm-generic/delay.h
index 0f79054ce7cd..e448ac61430c 100644
--- a/include/asm-generic/delay.h
+++ b/include/asm-generic/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_DELAY_H
 #define __ASM_GENERIC_DELAY_H
 
diff --git a/include/asm-generic/div64.h b/include/asm-generic/div64.h
index 163f77999ea4..dc9726fdac8f 100644
--- a/include/asm-generic/div64.h
+++ b/include/asm-generic/div64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_DIV64_H
 #define _ASM_GENERIC_DIV64_H
 /*
@@ -25,6 +26,20 @@
 
 #if BITS_PER_LONG == 64
 
+/**
+ * do_div - returns 2 values: calculate remainder and update new dividend
+ * @n: pointer to uint64_t dividend (will be updated)
+ * @base: uint32_t divisor
+ *
+ * Summary:
+ * ``uint32_t remainder = *n % base;``
+ * ``*n = *n / base;``
+ *
+ * Return: (uint32_t)remainder
+ *
+ * NOTE: macro parameter @n is evaluated multiple times,
+ * beware of side effects!
+ */
 # define do_div(n,base) ({					\
 	uint32_t __base = (base);				\
 	uint32_t __rem;						\
diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h
index 292c571750f0..f24b0f9a4f05 100644
--- a/include/asm-generic/dma-contiguous.h
+++ b/include/asm-generic/dma-contiguous.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_DMA_CONTIGUOUS_H
 #define _ASM_GENERIC_DMA_CONTIGUOUS_H
 
diff --git a/include/asm-generic/dma.h b/include/asm-generic/dma.h
index 9dfc3a7f36d2..43d0c8af8058 100644
--- a/include/asm-generic/dma.h
+++ b/include/asm-generic/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_DMA_H
 #define __ASM_GENERIC_DMA_H
 /*
diff --git a/include/asm-generic/early_ioremap.h b/include/asm-generic/early_ioremap.h
index 2edef8d7fa6b..9def22e6e2b3 100644
--- a/include/asm-generic/early_ioremap.h
+++ b/include/asm-generic/early_ioremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_EARLY_IOREMAP_H_
 #define _ASM_EARLY_IOREMAP_H_
 
diff --git a/include/asm-generic/emergency-restart.h b/include/asm-generic/emergency-restart.h
index 0d68a1eae985..445de38b795e 100644
--- a/include/asm-generic/emergency-restart.h
+++ b/include/asm-generic/emergency-restart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_EMERGENCY_RESTART_H
 #define _ASM_GENERIC_EMERGENCY_RESTART_H
 
diff --git a/include/asm-generic/extable.h b/include/asm-generic/extable.h
index ca14c6664027..f9618bd0723a 100644
--- a/include/asm-generic/extable.h
+++ b/include/asm-generic/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_EXTABLE_H
 #define __ASM_GENERIC_EXTABLE_H
 
diff --git a/include/asm-generic/fb.h b/include/asm-generic/fb.h
index fe8ca7fcea00..f9f18101ed36 100644
--- a/include/asm-generic/fb.h
+++ b/include/asm-generic/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_FB_H_
 #define __ASM_GENERIC_FB_H_
 #include <linux/fb.h>
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index f0d8b1c51343..fcb61b4659b3 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_FUTEX_H
 #define _ASM_GENERIC_FUTEX_H
 
diff --git a/include/asm-generic/getorder.h b/include/asm-generic/getorder.h
index 65e4468ac53d..c64bea7a52be 100644
--- a/include/asm-generic/getorder.h
+++ b/include/asm-generic/getorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_GETORDER_H
 #define __ASM_GENERIC_GETORDER_H
 
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 8ca627dcea11..19eadac415c4 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_GPIO_H
 #define _ASM_GENERIC_GPIO_H
 
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h
index 04d0a977cd43..d14214dfc10b 100644
--- a/include/asm-generic/hardirq.h
+++ b/include/asm-generic/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_HARDIRQ_H
 #define __ASM_GENERIC_HARDIRQ_H
 
diff --git a/include/asm-generic/hugetlb.h b/include/asm-generic/hugetlb.h
index 540354f94f83..9d0cde8ab716 100644
--- a/include/asm-generic/hugetlb.h
+++ b/include/asm-generic/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_HUGETLB_H
 #define _ASM_GENERIC_HUGETLB_H
 
diff --git a/include/asm-generic/ide_iops.h b/include/asm-generic/ide_iops.h
index 1b91d0681914..81dfa3ee5e06 100644
--- a/include/asm-generic/ide_iops.h
+++ b/include/asm-generic/ide_iops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Generic I/O and MEMIO string operations.  */
 
 #define __ide_insw	insw
diff --git a/include/asm-generic/int-ll64.h b/include/asm-generic/int-ll64.h
index 4cd84855cb46..ffb68d67be5f 100644
--- a/include/asm-generic/int-ll64.h
+++ b/include/asm-generic/int-ll64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * asm-generic/int-ll64.h
  *
diff --git a/include/asm-generic/ioctl.h b/include/asm-generic/ioctl.h
index 297fb0d7cd6c..9fda9ed000cd 100644
--- a/include/asm-generic/ioctl.h
+++ b/include/asm-generic/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_IOCTL_H
 #define _ASM_GENERIC_IOCTL_H
 
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 650fede33c25..5b63b94ef6b5 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GENERIC_IO_H
 #define __GENERIC_IO_H
 
diff --git a/include/asm-generic/irq.h b/include/asm-generic/irq.h
index b90ec0bc485f..da21de991e84 100644
--- a/include/asm-generic/irq.h
+++ b/include/asm-generic/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_IRQ_H
 #define __ASM_GENERIC_IRQ_H
 
diff --git a/include/asm-generic/irq_work.h b/include/asm-generic/irq_work.h
index a44f452c6590..d5dce06f74b8 100644
--- a/include/asm-generic/irq_work.h
+++ b/include/asm-generic/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_IRQ_WORK_H
 #define __ASM_IRQ_WORK_H
 
diff --git a/include/asm-generic/irqflags.h b/include/asm-generic/irqflags.h
index 1f40d0024cf3..19ccbf483a24 100644
--- a/include/asm-generic/irqflags.h
+++ b/include/asm-generic/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_IRQFLAGS_H
 #define __ASM_GENERIC_IRQFLAGS_H
 
diff --git a/include/asm-generic/kdebug.h b/include/asm-generic/kdebug.h
index d1814497bcdb..2b10b31b02d0 100644
--- a/include/asm-generic/kdebug.h
+++ b/include/asm-generic/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KDEBUG_H
 #define _ASM_GENERIC_KDEBUG_H
 
diff --git a/include/asm-generic/kmap_types.h b/include/asm-generic/kmap_types.h
index 90f99c74dd38..9f95b7b63d19 100644
--- a/include/asm-generic/kmap_types.h
+++ b/include/asm-generic/kmap_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KMAP_TYPES_H
 #define _ASM_GENERIC_KMAP_TYPES_H
 
diff --git a/include/asm-generic/kprobes.h b/include/asm-generic/kprobes.h
index 57af9f21d148..4a982089c95c 100644
--- a/include/asm-generic/kprobes.h
+++ b/include/asm-generic/kprobes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KPROBES_H
 #define _ASM_GENERIC_KPROBES_H
 
diff --git a/include/asm-generic/kvm_para.h b/include/asm-generic/kvm_para.h
index fa25becbdcaf..18c6abe81fbd 100644
--- a/include/asm-generic/kvm_para.h
+++ b/include/asm-generic/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_KVM_PARA_H
 #define _ASM_GENERIC_KVM_PARA_H
 
diff --git a/include/asm-generic/local.h b/include/asm-generic/local.h
index 9ceb03b4f466..fca7f1d84818 100644
--- a/include/asm-generic/local.h
+++ b/include/asm-generic/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_LOCAL_H
 #define _ASM_GENERIC_LOCAL_H
 
diff --git a/include/asm-generic/local64.h b/include/asm-generic/local64.h
index 5980002b8b7b..765be0b7d883 100644
--- a/include/asm-generic/local64.h
+++ b/include/asm-generic/local64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_LOCAL64_H
 #define _ASM_GENERIC_LOCAL64_H
 
diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index 5148150cc80b..7637fb46ba4f 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MEMORY_MODEL_H
 #define __ASM_MEMORY_MODEL_H
 
diff --git a/include/asm-generic/mm_hooks.h b/include/asm-generic/mm_hooks.h
index 41e5b6784b97..ea189d88a3cc 100644
--- a/include/asm-generic/mm_hooks.h
+++ b/include/asm-generic/mm_hooks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Define generic no-op hooks for arch_dup_mmap, arch_exit_mmap
  * and arch_unmap to be included in asm-FOO/mmu_context.h for any
diff --git a/include/asm-generic/mmu.h b/include/asm-generic/mmu.h
index 0ed3f1cfb854..061838037542 100644
--- a/include/asm-generic/mmu.h
+++ b/include/asm-generic/mmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MMU_H
 #define __ASM_GENERIC_MMU_H
 
diff --git a/include/asm-generic/mmu_context.h b/include/asm-generic/mmu_context.h
index a7eec910ba6c..6be9106fb6fb 100644
--- a/include/asm-generic/mmu_context.h
+++ b/include/asm-generic/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MMU_CONTEXT_H
 #define __ASM_GENERIC_MMU_CONTEXT_H
 
diff --git a/include/asm-generic/module.h b/include/asm-generic/module.h
index 14dc41d185a7..98e1541b72b7 100644
--- a/include/asm-generic/module.h
+++ b/include/asm-generic/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MODULE_H
 #define __ASM_GENERIC_MODULE_H
 
diff --git a/include/asm-generic/msi.h b/include/asm-generic/msi.h
index 61c58d8878ce..e6795f088bdd 100644
--- a/include/asm-generic/msi.h
+++ b/include/asm-generic/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_MSI_H
 #define __ASM_GENERIC_MSI_H
 
diff --git a/include/asm-generic/page.h b/include/asm-generic/page.h
index 67cfb7dbc284..27bf3377b0cb 100644
--- a/include/asm-generic/page.h
+++ b/include/asm-generic/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PAGE_H
 #define __ASM_GENERIC_PAGE_H
 /*
diff --git a/include/asm-generic/param.h b/include/asm-generic/param.h
index 04e715bccceb..8d3009dd28ff 100644
--- a/include/asm-generic/param.h
+++ b/include/asm-generic/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PARAM_H
 #define __ASM_GENERIC_PARAM_H
 
diff --git a/include/asm-generic/parport.h b/include/asm-generic/parport.h
index 2c9f9d4336ca..483991d619a7 100644
--- a/include/asm-generic/parport.h
+++ b/include/asm-generic/parport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PARPORT_H
 #define __ASM_GENERIC_PARPORT_H
 
diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h
index f24bc519bf31..830d7659289b 100644
--- a/include/asm-generic/pci.h
+++ b/include/asm-generic/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/asm-generic/pci.h
  *
diff --git a/include/asm-generic/percpu.h b/include/asm-generic/percpu.h
index 0504ef8f3aa3..1817a8415a5e 100644
--- a/include/asm-generic/percpu.h
+++ b/include/asm-generic/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_PERCPU_H_
 #define _ASM_GENERIC_PERCPU_H_
 
@@ -115,15 +116,35 @@ do {									\
 	(__ret);							\
 })
 
-#define this_cpu_generic_read(pcp)					\
+#define __this_cpu_generic_read_nopreempt(pcp)				\
 ({									\
 	typeof(pcp) __ret;						\
 	preempt_disable_notrace();					\
-	__ret = raw_cpu_generic_read(pcp);				\
+	__ret = READ_ONCE(*raw_cpu_ptr(&(pcp)));			\
 	preempt_enable_notrace();					\
 	__ret;								\
 })
 
+#define __this_cpu_generic_read_noirq(pcp)				\
+({									\
+	typeof(pcp) __ret;						\
+	unsigned long __flags;						\
+	raw_local_irq_save(__flags);					\
+	__ret = raw_cpu_generic_read(pcp);				\
+	raw_local_irq_restore(__flags);					\
+	__ret;								\
+})
+
+#define this_cpu_generic_read(pcp)					\
+({									\
+	typeof(pcp) __ret;						\
+	if (__native_word(pcp))						\
+		__ret = __this_cpu_generic_read_nopreempt(pcp);		\
+	else								\
+		__ret = __this_cpu_generic_read_noirq(pcp);		\
+	__ret;								\
+})
+
 #define this_cpu_generic_to_op(pcp, val, op)				\
 do {									\
 	unsigned long __flags;						\
diff --git a/include/asm-generic/pgalloc.h b/include/asm-generic/pgalloc.h
index 9e429d08b1f8..948714c1535a 100644
--- a/include/asm-generic/pgalloc.h
+++ b/include/asm-generic/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_PGALLOC_H
 #define __ASM_GENERIC_PGALLOC_H
 /*
diff --git a/include/asm-generic/pgtable-nop4d-hack.h b/include/asm-generic/pgtable-nop4d-hack.h
index 752fb7511750..0c34215263b8 100644
--- a/include/asm-generic/pgtable-nop4d-hack.h
+++ b/include/asm-generic/pgtable-nop4d-hack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOP4D_HACK_H
 #define _PGTABLE_NOP4D_HACK_H
 
diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h
index de364ecb8df6..8f22f55de17a 100644
--- a/include/asm-generic/pgtable-nop4d.h
+++ b/include/asm-generic/pgtable-nop4d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOP4D_H
 #define _PGTABLE_NOP4D_H
 
diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h
index 725612b793ce..f35f6e8149e4 100644
--- a/include/asm-generic/pgtable-nopmd.h
+++ b/include/asm-generic/pgtable-nopmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOPMD_H
 #define _PGTABLE_NOPMD_H
 
diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pgtable-nopud.h
index c2b9b96d6268..e950b9c50f34 100644
--- a/include/asm-generic/pgtable-nopud.h
+++ b/include/asm-generic/pgtable-nopud.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PGTABLE_NOPUD_H
 #define _PGTABLE_NOPUD_H
 
diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
index 8e0243036564..757dc6ffc7ba 100644
--- a/include/asm-generic/pgtable.h
+++ b/include/asm-generic/pgtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_PGTABLE_H
 #define _ASM_GENERIC_PGTABLE_H
 
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index c1cde3577551..c3046c920063 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_PREEMPT_H
 #define __ASM_PREEMPT_H
 
diff --git a/include/asm-generic/qrwlock.h b/include/asm-generic/qrwlock.h
index 7d026bf27713..0f7062bd55e5 100644
--- a/include/asm-generic/qrwlock.h
+++ b/include/asm-generic/qrwlock.h
@@ -26,51 +26,20 @@
 
 /*
  * Writer states & reader shift and bias.
- *
- *       | +0 | +1 | +2 | +3 |
- *   ----+----+----+----+----+
- *    LE | 78 | 56 | 34 | 12 | 0x12345678
- *   ----+----+----+----+----+
- *       | wr |      rd      |
- *       +----+----+----+----+
- *
- *   ----+----+----+----+----+
- *    BE | 12 | 34 | 56 | 78 | 0x12345678
- *   ----+----+----+----+----+
- *       |      rd      | wr |
- *       +----+----+----+----+
  */
-#define	_QW_WAITING	1		/* A writer is waiting	   */
-#define	_QW_LOCKED	0xff		/* A writer holds the lock */
-#define	_QW_WMASK	0xff		/* Writer mask		   */
-#define	_QR_SHIFT	8		/* Reader count shift	   */
+#define	_QW_WAITING	0x100		/* A writer is waiting	   */
+#define	_QW_LOCKED	0x0ff		/* A writer holds the lock */
+#define	_QW_WMASK	0x1ff		/* Writer mask		   */
+#define	_QR_SHIFT	9		/* Reader count shift	   */
 #define _QR_BIAS	(1U << _QR_SHIFT)
 
 /*
  * External function declarations
  */
-extern void queued_read_lock_slowpath(struct qrwlock *lock, u32 cnts);
+extern void queued_read_lock_slowpath(struct qrwlock *lock);
 extern void queued_write_lock_slowpath(struct qrwlock *lock);
 
 /**
- * queued_read_can_lock- would read_trylock() succeed?
- * @lock: Pointer to queue rwlock structure
- */
-static inline int queued_read_can_lock(struct qrwlock *lock)
-{
-	return !(atomic_read(&lock->cnts) & _QW_WMASK);
-}
-
-/**
- * queued_write_can_lock- would write_trylock() succeed?
- * @lock: Pointer to queue rwlock structure
- */
-static inline int queued_write_can_lock(struct qrwlock *lock)
-{
-	return !atomic_read(&lock->cnts);
-}
-
-/**
  * queued_read_trylock - try to acquire read lock of a queue rwlock
  * @lock : Pointer to queue rwlock structure
  * Return: 1 if lock acquired, 0 if failed
@@ -118,7 +87,7 @@ static inline void queued_read_lock(struct qrwlock *lock)
 		return;
 
 	/* The slowpath will decrement the reader count, if necessary. */
-	queued_read_lock_slowpath(lock, cnts);
+	queued_read_lock_slowpath(lock);
 }
 
 /**
@@ -147,30 +116,18 @@ static inline void queued_read_unlock(struct qrwlock *lock)
 }
 
 /**
- * __qrwlock_write_byte - retrieve the write byte address of a queue rwlock
- * @lock : Pointer to queue rwlock structure
- * Return: the write byte address of a queue rwlock
- */
-static inline u8 *__qrwlock_write_byte(struct qrwlock *lock)
-{
-	return (u8 *)lock + 3 * IS_BUILTIN(CONFIG_CPU_BIG_ENDIAN);
-}
-
-/**
  * queued_write_unlock - release write lock of a queue rwlock
  * @lock : Pointer to queue rwlock structure
  */
 static inline void queued_write_unlock(struct qrwlock *lock)
 {
-	smp_store_release(__qrwlock_write_byte(lock), 0);
+	smp_store_release(&lock->wlocked, 0);
 }
 
 /*
  * Remapping rwlock architecture specific functions to the corresponding
  * queue rwlock functions.
  */
-#define arch_read_can_lock(l)	queued_read_can_lock(l)
-#define arch_write_can_lock(l)	queued_write_can_lock(l)
 #define arch_read_lock(l)	queued_read_lock(l)
 #define arch_write_lock(l)	queued_write_lock(l)
 #define arch_read_trylock(l)	queued_read_trylock(l)
diff --git a/include/asm-generic/qrwlock_types.h b/include/asm-generic/qrwlock_types.h
index 0abc6b6062fb..137ecdd16daa 100644
--- a/include/asm-generic/qrwlock_types.h
+++ b/include/asm-generic/qrwlock_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_QRWLOCK_TYPES_H
 #define __ASM_GENERIC_QRWLOCK_TYPES_H
 
@@ -9,12 +10,23 @@
  */
 
 typedef struct qrwlock {
-	atomic_t		cnts;
+	union {
+		atomic_t cnts;
+		struct {
+#ifdef __LITTLE_ENDIAN
+			u8 wlocked;	/* Locked for write? */
+			u8 __lstate[3];
+#else
+			u8 __lstate[3];
+			u8 wlocked;	/* Locked for write? */
+#endif
+		};
+	};
 	arch_spinlock_t		wait_lock;
 } arch_rwlock_t;
 
 #define	__ARCH_RW_LOCK_UNLOCKED {		\
-	.cnts = ATOMIC_INIT(0),			\
+	{ .cnts = ATOMIC_INIT(0), },		\
 	.wait_lock = __ARCH_SPIN_LOCK_UNLOCKED,	\
 }
 
diff --git a/include/asm-generic/qspinlock.h b/include/asm-generic/qspinlock.h
index 66260777d644..b37b4ad7eb94 100644
--- a/include/asm-generic/qspinlock.h
+++ b/include/asm-generic/qspinlock.h
@@ -121,6 +121,5 @@ static __always_inline bool virt_spin_lock(struct qspinlock *lock)
 #define arch_spin_lock(l)		queued_spin_lock(l)
 #define arch_spin_trylock(l)		queued_spin_trylock(l)
 #define arch_spin_unlock(l)		queued_spin_unlock(l)
-#define arch_spin_lock_flags(l, f)	queued_spin_lock(l)
 
 #endif /* __ASM_GENERIC_QSPINLOCK_H */
diff --git a/include/asm-generic/resource.h b/include/asm-generic/resource.h
index 5e752b959054..8874f681b056 100644
--- a/include/asm-generic/resource.h
+++ b/include/asm-generic/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_RESOURCE_H
 #define _ASM_GENERIC_RESOURCE_H
 
diff --git a/include/asm-generic/rwsem.h b/include/asm-generic/rwsem.h
index 6c6a2141f271..93e67a055a4d 100644
--- a/include/asm-generic/rwsem.h
+++ b/include/asm-generic/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_RWSEM_H
 #define _ASM_GENERIC_RWSEM_H
 
@@ -37,6 +38,16 @@ static inline void __down_read(struct rw_semaphore *sem)
 		rwsem_down_read_failed(sem);
 }
 
+static inline int __down_read_killable(struct rw_semaphore *sem)
+{
+	if (unlikely(atomic_long_inc_return_acquire(&sem->count) <= 0)) {
+		if (IS_ERR(rwsem_down_read_failed_killable(sem)))
+			return -EINTR;
+	}
+
+	return 0;
+}
+
 static inline int __down_read_trylock(struct rw_semaphore *sem)
 {
 	long tmp;
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h
index e5da44eddd2f..6d9576931084 100644
--- a/include/asm-generic/sections.h
+++ b/include/asm-generic/sections.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_SECTIONS_H_
 #define _ASM_GENERIC_SECTIONS_H_
 
diff --git a/include/asm-generic/serial.h b/include/asm-generic/serial.h
index 5e291090fe04..ca9f7b6be3f0 100644
--- a/include/asm-generic/serial.h
+++ b/include/asm-generic/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SERIAL_H
 #define __ASM_GENERIC_SERIAL_H
 
diff --git a/include/asm-generic/set_memory.h b/include/asm-generic/set_memory.h
index 83e81f8996b2..c86abf6bc7ba 100644
--- a/include/asm-generic/set_memory.h
+++ b/include/asm-generic/set_memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SET_MEMORY_H
 #define __ASM_SET_MEMORY_H
 
diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h
index d840c90a157a..c53984fa9761 100644
--- a/include/asm-generic/signal.h
+++ b/include/asm-generic/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SIGNAL_H
 #define __ASM_GENERIC_SIGNAL_H
 
diff --git a/include/asm-generic/simd.h b/include/asm-generic/simd.h
index f57eb7b5c23b..d0343d58a74a 100644
--- a/include/asm-generic/simd.h
+++ b/include/asm-generic/simd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <linux/hardirq.h>
 
diff --git a/include/asm-generic/spinlock.h b/include/asm-generic/spinlock.h
index 1547a03ac50f..adaf6acab172 100644
--- a/include/asm-generic/spinlock.h
+++ b/include/asm-generic/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SPINLOCK_H
 #define __ASM_GENERIC_SPINLOCK_H
 /*
diff --git a/include/asm-generic/statfs.h b/include/asm-generic/statfs.h
index 4b934e9ec970..f88dcd8ed9dd 100644
--- a/include/asm-generic/statfs.h
+++ b/include/asm-generic/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GENERIC_STATFS_H
 #define _GENERIC_STATFS_H
 
diff --git a/include/asm-generic/syscalls.h b/include/asm-generic/syscalls.h
index 1f74be5113b2..933ca6581aba 100644
--- a/include/asm-generic/syscalls.h
+++ b/include/asm-generic/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_SYSCALLS_H
 #define __ASM_GENERIC_SYSCALLS_H
 
diff --git a/include/asm-generic/termios-base.h b/include/asm-generic/termios-base.h
index 157bbf6f4510..59c5a3bd4a6e 100644
--- a/include/asm-generic/termios-base.h
+++ b/include/asm-generic/termios-base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* termios.h: generic termios/termio user copying/translation
  */
 
diff --git a/include/asm-generic/termios.h b/include/asm-generic/termios.h
index 8c13a16b074e..b1398d0d4a1d 100644
--- a/include/asm-generic/termios.h
+++ b/include/asm-generic/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_TERMIOS_H
 #define _ASM_GENERIC_TERMIOS_H
 
diff --git a/include/asm-generic/timex.h b/include/asm-generic/timex.h
index b2243cb8d6f6..50ba9b5ce983 100644
--- a/include/asm-generic/timex.h
+++ b/include/asm-generic/timex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_TIMEX_H
 #define __ASM_GENERIC_TIMEX_H
 
diff --git a/include/asm-generic/tlbflush.h b/include/asm-generic/tlbflush.h
index d6d0a88430fe..dc2669289faf 100644
--- a/include/asm-generic/tlbflush.h
+++ b/include/asm-generic/tlbflush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_TLBFLUSH_H
 #define __ASM_GENERIC_TLBFLUSH_H
 /*
diff --git a/include/asm-generic/trace_clock.h b/include/asm-generic/trace_clock.h
index 6726f1bafb5e..cbbca295931a 100644
--- a/include/asm-generic/trace_clock.h
+++ b/include/asm-generic/trace_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_TRACE_CLOCK_H
 #define _ASM_GENERIC_TRACE_CLOCK_H
 /*
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index 723e81a6c162..6b2e63df2739 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_UACCESS_H
 #define __ASM_GENERIC_UACCESS_H
 
@@ -75,10 +76,10 @@ static inline int __access_ok(unsigned long addr, unsigned long size)
 
 #define put_user(x, ptr)					\
 ({								\
-	void *__p = (ptr);					\
+	void __user *__p = (ptr);				\
 	might_fault();						\
 	access_ok(VERIFY_WRITE, __p, sizeof(*ptr)) ?		\
-		__put_user((x), ((__typeof__(*(ptr)) *)__p)) :	\
+		__put_user((x), ((__typeof__(*(ptr)) __user *)__p)) :	\
 		-EFAULT;					\
 })
 
@@ -137,10 +138,10 @@ extern int __put_user_bad(void) __attribute__((noreturn));
 
 #define get_user(x, ptr)					\
 ({								\
-	const void *__p = (ptr);				\
+	const void __user *__p = (ptr);				\
 	might_fault();						\
 	access_ok(VERIFY_READ, __p, sizeof(*ptr)) ?		\
-		__get_user((x), (__typeof__(*(ptr)) *)__p) :	\
+		__get_user((x), (__typeof__(*(ptr)) __user *)__p) :\
 		((x) = (__typeof__(*(ptr)))0,-EFAULT);		\
 })
 
diff --git a/include/asm-generic/unaligned.h b/include/asm-generic/unaligned.h
index 1ac097279db1..374c940e9be1 100644
--- a/include/asm-generic/unaligned.h
+++ b/include/asm-generic/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_UNALIGNED_H
 #define __ASM_GENERIC_UNALIGNED_H
 
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index cccc86ecfeaa..cdf904265caf 100644
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <uapi/asm-generic/unistd.h>
 #include <linux/export.h>
 
diff --git a/include/asm-generic/vga.h b/include/asm-generic/vga.h
index 36c8ff52016b..adf91a783b5c 100644
--- a/include/asm-generic/vga.h
+++ b/include/asm-generic/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Access to VGA videoram
  *
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 8acfc1e099e1..bdcd1caae092 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -459,6 +459,7 @@
 #define TEXT_TEXT							\
 		ALIGN_FUNCTION();					\
 		*(.text.hot TEXT_MAIN .text.fixup .text.unlikely)	\
+		*(.text..refcount)					\
 		*(.ref.text)						\
 	MEM_KEEP(init.text)						\
 	MEM_KEEP(exit.text)						\
@@ -687,7 +688,7 @@
 #define BUG_TABLE
 #endif
 
-#ifdef CONFIG_ORC_UNWINDER
+#ifdef CONFIG_UNWINDER_ORC
 #define ORC_UNWIND_TABLE						\
 	. = ALIGN(4);							\
 	.orc_unwind_ip : AT(ADDR(.orc_unwind_ip) - LOAD_OFFSET) {	\
@@ -778,6 +779,24 @@
 #endif
 
 /*
+ * Memory encryption operates on a page basis. Since we need to clear
+ * the memory encryption mask for this section, it needs to be aligned
+ * on a page boundary and be a page-size multiple in length.
+ *
+ * Note: We use a separate section so that only this section gets
+ * decrypted to avoid exposing more than we wish.
+ */
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+#define PERCPU_DECRYPTED_SECTION					\
+	. = ALIGN(PAGE_SIZE);						\
+	*(.data..percpu..decrypted)					\
+	. = ALIGN(PAGE_SIZE);
+#else
+#define PERCPU_DECRYPTED_SECTION
+#endif
+
+
+/*
  * Default discarded sections.
  *
  * Some archs want to discard exit text/data at runtime rather than
@@ -815,6 +834,7 @@
 	. = ALIGN(cacheline);						\
 	*(.data..percpu)						\
 	*(.data..percpu..shared_aligned)				\
+	PERCPU_DECRYPTED_SECTION					\
 	VMLINUX_SYMBOL(__per_cpu_end) = .;
 
 /**
diff --git a/include/asm-generic/word-at-a-time.h b/include/asm-generic/word-at-a-time.h
index 011dde083f23..20c93f08c993 100644
--- a/include/asm-generic/word-at-a-time.h
+++ b/include/asm-generic/word-at-a-time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_WORD_AT_A_TIME_H
 #define _ASM_WORD_AT_A_TIME_H
 
diff --git a/include/clocksource/timer-sp804.h b/include/clocksource/timer-sp804.h
index 7654d71243dd..a5b41f31a1c2 100644
--- a/include/clocksource/timer-sp804.h
+++ b/include/clocksource/timer-sp804.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CLKSOURCE_TIMER_SP804_H
 #define __CLKSOURCE_TIMER_SP804_H
 
diff --git a/include/crypto/ablk_helper.h b/include/crypto/ablk_helper.h
index 4f93df50c23e..4e655c2a4e15 100644
--- a/include/crypto/ablk_helper.h
+++ b/include/crypto/ablk_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared async block cipher helpers
  */
diff --git a/include/crypto/aes.h b/include/crypto/aes.h
index 7524ba3b6f3c..852eaa9cd4db 100644
--- a/include/crypto/aes.h
+++ b/include/crypto/aes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for AES algorithms
  */
diff --git a/include/crypto/blowfish.h b/include/crypto/blowfish.h
index 1450d4a27980..9b384670b356 100644
--- a/include/crypto/blowfish.h
+++ b/include/crypto/blowfish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for blowfish algorithms
  */
diff --git a/include/crypto/cast5.h b/include/crypto/cast5.h
index 14fbf39d6380..3d4ed4ea9c3b 100644
--- a/include/crypto/cast5.h
+++ b/include/crypto/cast5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_CAST5_H
 #define _CRYPTO_CAST5_H
 
diff --git a/include/crypto/cast6.h b/include/crypto/cast6.h
index 32b60eb8bd24..c71f6ef47f0f 100644
--- a/include/crypto/cast6.h
+++ b/include/crypto/cast6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_CAST6_H
 #define _CRYPTO_CAST6_H
 
diff --git a/include/crypto/cast_common.h b/include/crypto/cast_common.h
index b7df35cd9f0a..b90090244164 100644
--- a/include/crypto/cast_common.h
+++ b/include/crypto/cast_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_CAST_COMMON_H
 #define _CRYPTO_CAST_COMMON_H
 
diff --git a/include/crypto/chacha20.h b/include/crypto/chacha20.h
index 445fc45f4b5b..caaa470389e0 100644
--- a/include/crypto/chacha20.h
+++ b/include/crypto/chacha20.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for the ChaCha20 algorithm
  */
diff --git a/include/crypto/cryptd.h b/include/crypto/cryptd.h
index 94418cbf9013..1e64f354c2b8 100644
--- a/include/crypto/cryptd.h
+++ b/include/crypto/cryptd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Software async crypto daemon
  *
diff --git a/include/crypto/crypto_wq.h b/include/crypto/crypto_wq.h
index a7d252daf91b..23114746ac08 100644
--- a/include/crypto/crypto_wq.h
+++ b/include/crypto/crypto_wq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CRYPTO_WQ_H
 #define CRYPTO_WQ_H
 
diff --git a/include/crypto/des.h b/include/crypto/des.h
index fc6274c6bb26..d4094d58ac54 100644
--- a/include/crypto/des.h
+++ b/include/crypto/des.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* 
  * DES & Triple DES EDE Cipher Algorithms.
  */
diff --git a/include/crypto/dh.h b/include/crypto/dh.h
index f638998fb6d0..71e1bb24d79f 100644
--- a/include/crypto/dh.h
+++ b/include/crypto/dh.h
@@ -53,7 +53,7 @@ struct dh {
  *
  * Return: size of the key in bytes
  */
-int crypto_dh_key_len(const struct dh *params);
+unsigned int crypto_dh_key_len(const struct dh *params);
 
 /**
  * crypto_dh_encode_key() - encode the private key
diff --git a/include/crypto/drbg.h b/include/crypto/drbg.h
index 22f884c97387..8f941102af36 100644
--- a/include/crypto/drbg.h
+++ b/include/crypto/drbg.h
@@ -126,8 +126,7 @@ struct drbg_state {
 	__u8 *ctr_null_value;			/* CTR mode aligned zero buf */
 	__u8 *outscratchpadbuf;			/* CTR mode output scratchpad */
         __u8 *outscratchpad;			/* CTR mode aligned outbuf */
-	struct completion ctr_completion;	/* CTR mode async handler */
-	int ctr_async_err;			/* CTR mode async error */
+	struct crypto_wait ctr_wait;		/* CTR mode async wait obj */
 
 	bool seeded;		/* DRBG fully seeded? */
 	bool pr;		/* Prediction resistance enabled? */
diff --git a/include/crypto/ecdh.h b/include/crypto/ecdh.h
index 1aff2a8a3a68..d696317c43a8 100644
--- a/include/crypto/ecdh.h
+++ b/include/crypto/ecdh.h
@@ -54,7 +54,7 @@ struct ecdh {
  *
  * Return: size of the key in bytes
  */
-int crypto_ecdh_key_len(const struct ecdh *params);
+unsigned int crypto_ecdh_key_len(const struct ecdh *params);
 
 /**
  * crypto_ecdh_encode_key() - encode the private key
diff --git a/include/crypto/gcm.h b/include/crypto/gcm.h
new file mode 100644
index 000000000000..c50e057ea17e
--- /dev/null
+++ b/include/crypto/gcm.h
@@ -0,0 +1,8 @@
+#ifndef _CRYPTO_GCM_H
+#define _CRYPTO_GCM_H
+
+#define GCM_AES_IV_SIZE 12
+#define GCM_RFC4106_IV_SIZE 8
+#define GCM_RFC4543_IV_SIZE 8
+
+#endif
diff --git a/include/crypto/gf128mul.h b/include/crypto/gf128mul.h
index 0977fb18ff68..fa0a63d298dc 100644
--- a/include/crypto/gf128mul.h
+++ b/include/crypto/gf128mul.h
@@ -227,7 +227,7 @@ struct gf128mul_4k *gf128mul_init_4k_lle(const be128 *g);
 struct gf128mul_4k *gf128mul_init_4k_bbe(const be128 *g);
 void gf128mul_4k_lle(be128 *a, const struct gf128mul_4k *t);
 void gf128mul_4k_bbe(be128 *a, const struct gf128mul_4k *t);
-
+void gf128mul_x8_ble(le128 *r, const le128 *x);
 static inline void gf128mul_free_4k(struct gf128mul_4k *t)
 {
 	kzfree(t);
diff --git a/include/crypto/ghash.h b/include/crypto/ghash.h
index 2a61c9bbab8f..9136301062a5 100644
--- a/include/crypto/ghash.h
+++ b/include/crypto/ghash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for GHASH algorithms
  */
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index b5727bcd2336..0ed31fd80242 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -75,6 +75,7 @@ struct ahash_request {
  *	  state of the HASH transformation at the beginning. This shall fill in
  *	  the internal structures used during the entire duration of the whole
  *	  transformation. No data processing happens at this point.
+ *	  Note: mandatory.
  * @update: Push a chunk of data into the driver for transformation. This
  *	   function actually pushes blocks of data from upper layers into the
  *	   driver, which then passes those to the hardware as seen fit. This
@@ -84,16 +85,20 @@ struct ahash_request {
  *	   context, as this function may be called in parallel with the same
  *	   transformation object. Data processing can happen synchronously
  *	   [SHASH] or asynchronously [AHASH] at this point.
+ *	   Note: mandatory.
  * @final: Retrieve result from the driver. This function finalizes the
  *	   transformation and retrieves the resulting hash from the driver and
  *	   pushes it back to upper layers. No data processing happens at this
- *	   point.
+ *	   point unless hardware requires it to finish the transformation
+ *	   (then the data buffered by the device driver is processed).
+ *	   Note: mandatory.
  * @finup: Combination of @update and @final. This function is effectively a
  *	   combination of @update and @final calls issued in sequence. As some
  *	   hardware cannot do @update and @final separately, this callback was
  *	   added to allow such hardware to be used at least by IPsec. Data
  *	   processing can happen synchronously [SHASH] or asynchronously [AHASH]
  *	   at this point.
+ *	   Note: optional.
  * @digest: Combination of @init and @update and @final. This function
  *	    effectively behaves as the entire chain of operations, @init,
  *	    @update and @final issued in sequence. Just like @finup, this was
@@ -416,11 +421,10 @@ static inline bool crypto_ahash_has_setkey(struct crypto_ahash *tfm)
  *	 needed to perform the cipher operation
  *
  * This function is a "short-hand" for the function calls of
- * crypto_ahash_update and crypto_shash_final. The parameters have the same
+ * crypto_ahash_update and crypto_ahash_final. The parameters have the same
  * meaning as discussed for those separate functions.
  *
- * Return: 0 if the message digest creation was successful; < 0 if an error
- *	   occurred
+ * Return: see crypto_ahash_final()
  */
 int crypto_ahash_finup(struct ahash_request *req);
 
@@ -433,8 +437,11 @@ int crypto_ahash_finup(struct ahash_request *req);
  * based on all data added to the cipher handle. The message digest is placed
  * into the output buffer registered with the ahash_request handle.
  *
- * Return: 0 if the message digest creation was successful; < 0 if an error
- *	   occurred
+ * Return:
+ * 0		if the message digest was successfully calculated;
+ * -EINPROGRESS	if data is feeded into hardware (DMA) or queued for later;
+ * -EBUSY	if queue is full and request should be resubmitted later;
+ * other < 0	if an error occurred
  */
 int crypto_ahash_final(struct ahash_request *req);
 
@@ -447,8 +454,7 @@ int crypto_ahash_final(struct ahash_request *req);
  * crypto_ahash_update and crypto_ahash_final. The parameters have the same
  * meaning as discussed for those separate three functions.
  *
- * Return: 0 if the message digest creation was successful; < 0 if an error
- *	   occurred
+ * Return: see crypto_ahash_final()
  */
 int crypto_ahash_digest(struct ahash_request *req);
 
@@ -493,8 +499,7 @@ static inline int crypto_ahash_import(struct ahash_request *req, const void *in)
  * handle. Any potentially existing state created by previous operations is
  * discarded.
  *
- * Return: 0 if the message digest initialization was successful; < 0 if an
- *	   error occurred
+ * Return: see crypto_ahash_final()
  */
 static inline int crypto_ahash_init(struct ahash_request *req)
 {
@@ -510,8 +515,7 @@ static inline int crypto_ahash_init(struct ahash_request *req)
  * is pointed to by the scatter/gather list registered in the &ahash_request
  * handle
  *
- * Return: 0 if the message digest update was successful; < 0 if an error
- *	   occurred
+ * Return: see crypto_ahash_final()
  */
 static inline int crypto_ahash_update(struct ahash_request *req)
 {
diff --git a/include/crypto/hmac.h b/include/crypto/hmac.h
index ef09f7938204..66774132a7b6 100644
--- a/include/crypto/hmac.h
+++ b/include/crypto/hmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_HMAC_H
 #define _CRYPTO_HMAC_H
 
diff --git a/include/crypto/if_alg.h b/include/crypto/if_alg.h
index 75ec9c662268..6abf0a3604dc 100644
--- a/include/crypto/if_alg.h
+++ b/include/crypto/if_alg.h
@@ -40,11 +40,6 @@ struct alg_sock {
 	void *private;
 };
 
-struct af_alg_completion {
-	struct completion completion;
-	int err;
-};
-
 struct af_alg_control {
 	struct af_alg_iv *iv;
 	int op;
@@ -152,7 +147,7 @@ struct af_alg_ctx {
 	void *iv;
 	size_t aead_assoclen;
 
-	struct af_alg_completion completion;
+	struct crypto_wait wait;
 
 	size_t used;
 	size_t rcvused;
@@ -177,19 +172,11 @@ void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new);
 
 int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con);
 
-int af_alg_wait_for_completion(int err, struct af_alg_completion *completion);
-void af_alg_complete(struct crypto_async_request *req, int err);
-
 static inline struct alg_sock *alg_sk(struct sock *sk)
 {
 	return (struct alg_sock *)sk;
 }
 
-static inline void af_alg_init_completion(struct af_alg_completion *completion)
-{
-	init_completion(&completion->completion);
-}
-
 /**
  * Size of available buffer for sending data from user space to kernel.
  *
diff --git a/include/crypto/internal/simd.h b/include/crypto/internal/simd.h
index 429509968f68..32ceb6929885 100644
--- a/include/crypto/internal/simd.h
+++ b/include/crypto/internal/simd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared crypto simd helpers
  */
diff --git a/include/crypto/lrw.h b/include/crypto/lrw.h
index 25a2c8716375..a9d44c06d081 100644
--- a/include/crypto/lrw.h
+++ b/include/crypto/lrw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_LRW_H
 #define _CRYPTO_LRW_H
 
diff --git a/include/crypto/mcryptd.h b/include/crypto/mcryptd.h
index 4a53c0d38cd2..cceafa01f907 100644
--- a/include/crypto/mcryptd.h
+++ b/include/crypto/mcryptd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Software async multibuffer crypto daemon headers
  *
diff --git a/include/crypto/md5.h b/include/crypto/md5.h
index 327deac963c0..cf9e9dec3d21 100644
--- a/include/crypto/md5.h
+++ b/include/crypto/md5.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_MD5_H
 #define _CRYPTO_MD5_H
 
diff --git a/include/crypto/null.h b/include/crypto/null.h
index 3f0c59fb0a61..5757c0a4b321 100644
--- a/include/crypto/null.h
+++ b/include/crypto/null.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Values for NULL algorithms */
 
 #ifndef _CRYPTO_NULL_H
diff --git a/include/crypto/poly1305.h b/include/crypto/poly1305.h
index 894df59b74e4..c65567d01e8e 100644
--- a/include/crypto/poly1305.h
+++ b/include/crypto/poly1305.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for the Poly1305 algorithm
  */
diff --git a/include/crypto/serpent.h b/include/crypto/serpent.h
index b7e0941eb6fc..7dd780c5d058 100644
--- a/include/crypto/serpent.h
+++ b/include/crypto/serpent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for serpent algorithms
  */
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index c94d3eb1cefd..0555b571dd34 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for SHA algorithms
  */
diff --git a/include/crypto/sha3.h b/include/crypto/sha3.h
index f4c9f68f5ffe..b9d9bd553b48 100644
--- a/include/crypto/sha3.h
+++ b/include/crypto/sha3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common values for SHA-3 algorithms
  */
diff --git a/include/crypto/sm3.h b/include/crypto/sm3.h
new file mode 100644
index 000000000000..1438942dc773
--- /dev/null
+++ b/include/crypto/sm3.h
@@ -0,0 +1,40 @@
+/*
+ * Common values for SM3 algorithm
+ */
+
+#ifndef _CRYPTO_SM3_H
+#define _CRYPTO_SM3_H
+
+#include <linux/types.h>
+
+#define SM3_DIGEST_SIZE	32
+#define SM3_BLOCK_SIZE	64
+
+#define SM3_T1		0x79CC4519
+#define SM3_T2		0x7A879D8A
+
+#define SM3_IVA		0x7380166f
+#define SM3_IVB		0x4914b2b9
+#define SM3_IVC		0x172442d7
+#define SM3_IVD		0xda8a0600
+#define SM3_IVE		0xa96f30bc
+#define SM3_IVF		0x163138aa
+#define SM3_IVG		0xe38dee4d
+#define SM3_IVH		0xb0fb0e4e
+
+extern const u8 sm3_zero_message_hash[SM3_DIGEST_SIZE];
+
+struct sm3_state {
+	u32 state[SM3_DIGEST_SIZE / 4];
+	u64 count;
+	u8 buffer[SM3_BLOCK_SIZE];
+};
+
+struct shash_desc;
+
+extern int crypto_sm3_update(struct shash_desc *desc, const u8 *data,
+			      unsigned int len);
+
+extern int crypto_sm3_finup(struct shash_desc *desc, const u8 *data,
+			     unsigned int len, u8 *hash);
+#endif
diff --git a/include/crypto/sm3_base.h b/include/crypto/sm3_base.h
new file mode 100644
index 000000000000..256948e39296
--- /dev/null
+++ b/include/crypto/sm3_base.h
@@ -0,0 +1,117 @@
+/*
+ * sm3_base.h - core logic for SM3 implementations
+ *
+ * Copyright (C) 2017 ARM Limited or its affiliates.
+ * Written by Gilad Ben-Yossef <gilad@benyossef.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <crypto/internal/hash.h>
+#include <crypto/sm3.h>
+#include <linux/crypto.h>
+#include <linux/module.h>
+#include <asm/unaligned.h>
+
+typedef void (sm3_block_fn)(struct sm3_state *sst, u8 const *src, int blocks);
+
+static inline int sm3_base_init(struct shash_desc *desc)
+{
+	struct sm3_state *sctx = shash_desc_ctx(desc);
+
+	sctx->state[0] = SM3_IVA;
+	sctx->state[1] = SM3_IVB;
+	sctx->state[2] = SM3_IVC;
+	sctx->state[3] = SM3_IVD;
+	sctx->state[4] = SM3_IVE;
+	sctx->state[5] = SM3_IVF;
+	sctx->state[6] = SM3_IVG;
+	sctx->state[7] = SM3_IVH;
+	sctx->count = 0;
+
+	return 0;
+}
+
+static inline int sm3_base_do_update(struct shash_desc *desc,
+				      const u8 *data,
+				      unsigned int len,
+				      sm3_block_fn *block_fn)
+{
+	struct sm3_state *sctx = shash_desc_ctx(desc);
+	unsigned int partial = sctx->count % SM3_BLOCK_SIZE;
+
+	sctx->count += len;
+
+	if (unlikely((partial + len) >= SM3_BLOCK_SIZE)) {
+		int blocks;
+
+		if (partial) {
+			int p = SM3_BLOCK_SIZE - partial;
+
+			memcpy(sctx->buffer + partial, data, p);
+			data += p;
+			len -= p;
+
+			block_fn(sctx, sctx->buffer, 1);
+		}
+
+		blocks = len / SM3_BLOCK_SIZE;
+		len %= SM3_BLOCK_SIZE;
+
+		if (blocks) {
+			block_fn(sctx, data, blocks);
+			data += blocks * SM3_BLOCK_SIZE;
+		}
+		partial = 0;
+	}
+	if (len)
+		memcpy(sctx->buffer + partial, data, len);
+
+	return 0;
+}
+
+static inline int sm3_base_do_finalize(struct shash_desc *desc,
+					sm3_block_fn *block_fn)
+{
+	const int bit_offset = SM3_BLOCK_SIZE - sizeof(__be64);
+	struct sm3_state *sctx = shash_desc_ctx(desc);
+	__be64 *bits = (__be64 *)(sctx->buffer + bit_offset);
+	unsigned int partial = sctx->count % SM3_BLOCK_SIZE;
+
+	sctx->buffer[partial++] = 0x80;
+	if (partial > bit_offset) {
+		memset(sctx->buffer + partial, 0x0, SM3_BLOCK_SIZE - partial);
+		partial = 0;
+
+		block_fn(sctx, sctx->buffer, 1);
+	}
+
+	memset(sctx->buffer + partial, 0x0, bit_offset - partial);
+	*bits = cpu_to_be64(sctx->count << 3);
+	block_fn(sctx, sctx->buffer, 1);
+
+	return 0;
+}
+
+static inline int sm3_base_finish(struct shash_desc *desc, u8 *out)
+{
+	struct sm3_state *sctx = shash_desc_ctx(desc);
+	__be32 *digest = (__be32 *)out;
+	int i;
+
+	for (i = 0; i < SM3_DIGEST_SIZE / sizeof(__be32); i++)
+		put_unaligned_be32(sctx->state[i], digest++);
+
+	*sctx = (struct sm3_state){};
+	return 0;
+}
diff --git a/include/crypto/twofish.h b/include/crypto/twofish.h
index 095c901a8af3..2e2c09673d88 100644
--- a/include/crypto/twofish.h
+++ b/include/crypto/twofish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_TWOFISH_H
 #define _CRYPTO_TWOFISH_H
 
diff --git a/include/crypto/xts.h b/include/crypto/xts.h
index c0bde308b28a..322aab6e78a7 100644
--- a/include/crypto/xts.h
+++ b/include/crypto/xts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CRYPTO_XTS_H
 #define _CRYPTO_XTS_H
 
diff --git a/include/drm/ati_pcigart.h b/include/drm/ati_pcigart.h
index 5765648b5ef7..a728a1364e66 100644
--- a/include/drm/ati_pcigart.h
+++ b/include/drm/ati_pcigart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRM_ATI_PCIGART_H
 #define DRM_ATI_PCIGART_H
 
diff --git a/include/drm/drm_agpsupport.h b/include/drm/drm_agpsupport.h
index b2d912670a7f..b05e462276d5 100644
--- a/include/drm/drm_agpsupport.h
+++ b/include/drm/drm_agpsupport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DRM_AGPSUPPORT_H_
 #define _DRM_AGPSUPPORT_H_
 
diff --git a/include/drm/drm_fb_cma_helper.h b/include/drm/drm_fb_cma_helper.h
index a323781afc3f..1df291d11710 100644
--- a/include/drm/drm_fb_cma_helper.h
+++ b/include/drm/drm_fb_cma_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_FB_CMA_HELPER_H__
 #define __DRM_FB_CMA_HELPER_H__
 
diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h
index 58a739bf15f1..520e3feb502c 100644
--- a/include/drm/drm_gem_cma_helper.h
+++ b/include/drm/drm_gem_cma_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_GEM_CMA_HELPER_H__
 #define __DRM_GEM_CMA_HELPER_H__
 
diff --git a/include/drm/drm_of.h b/include/drm/drm_of.h
index 104dd517fdbe..4f835490d77a 100644
--- a/include/drm/drm_of.h
+++ b/include/drm/drm_of.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_OF_H__
 #define __DRM_OF_H__
 
diff --git a/include/drm/drm_os_linux.h b/include/drm/drm_os_linux.h
index 10122353b744..ee8d61b64f29 100644
--- a/include/drm/drm_os_linux.h
+++ b/include/drm/drm_os_linux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * \file drm_os_linux.h
  * OS abstraction macros.
diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h
index 8bc073d297db..683742826511 100644
--- a/include/drm/drm_pciids.h
+++ b/include/drm/drm_pciids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define radeon_PCI_IDS \
 	{0x1002, 0x1304, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
 	{0x1002, 0x1305, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_KAVERI|RADEON_NEW_MEMMAP|RADEON_IS_IGP}, \
diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h
index 70c9a1074aca..4f311e836cdc 100644
--- a/include/drm/drm_sysfs.h
+++ b/include/drm/drm_sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DRM_SYSFS_H_
 #define _DRM_SYSFS_H_
 
diff --git a/include/drm/i2c/tda998x.h b/include/drm/i2c/tda998x.h
index a25483090cd5..3cb25ccbe5e6 100644
--- a/include/drm/i2c/tda998x.h
+++ b/include/drm/i2c/tda998x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DRM_I2C_TDA998X_H__
 #define __DRM_I2C_TDA998X_H__
 
diff --git a/include/drm/intel-gtt.h b/include/drm/intel-gtt.h
index b3bf717cfc45..c5db7975c640 100644
--- a/include/drm/intel-gtt.h
+++ b/include/drm/intel-gtt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Common header for intel-gtt.ko and i915.ko */
 
 #ifndef _DRM_INTEL_GTT_H
diff --git a/include/dt-bindings/clock/berlin2.h b/include/dt-bindings/clock/berlin2.h
index 0c30800175df..b07b8efab075 100644
--- a/include/dt-bindings/clock/berlin2.h
+++ b/include/dt-bindings/clock/berlin2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Berlin2 BG2/BG2CD clock tree IDs
  */
diff --git a/include/dt-bindings/clock/berlin2q.h b/include/dt-bindings/clock/berlin2q.h
index 72eaf91c9ca6..44b4ac382850 100644
--- a/include/dt-bindings/clock/berlin2q.h
+++ b/include/dt-bindings/clock/berlin2q.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Berlin2 BG2Q clock tree IDs
  */
diff --git a/include/dt-bindings/clock/cortina,gemini-clock.h b/include/dt-bindings/clock/cortina,gemini-clock.h
index acf5cd550b0c..04c3404b2d33 100644
--- a/include/dt-bindings/clock/cortina,gemini-clock.h
+++ b/include/dt-bindings/clock/cortina,gemini-clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_CORTINA_GEMINI_CLOCK_H
 #define DT_BINDINGS_CORTINA_GEMINI_CLOCK_H
 
diff --git a/include/dt-bindings/clock/efm32-cmu.h b/include/dt-bindings/clock/efm32-cmu.h
index b21b91e736af..4b48d15fe194 100644
--- a/include/dt-bindings/clock/efm32-cmu.h
+++ b/include/dt-bindings/clock/efm32-cmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_CLOCK_EFM32_CMU_H
 #define __DT_BINDINGS_CLOCK_EFM32_CMU_H
 
diff --git a/include/dt-bindings/clock/exynos-audss-clk.h b/include/dt-bindings/clock/exynos-audss-clk.h
index 0ae6f5a75d2a..eee9fcc6e6af 100644
--- a/include/dt-bindings/clock/exynos-audss-clk.h
+++ b/include/dt-bindings/clock/exynos-audss-clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for Samsung audio subsystem
  * clock controller.
diff --git a/include/dt-bindings/clock/gxbb-clkc.h b/include/dt-bindings/clock/gxbb-clkc.h
index c04a76d8facf..8c92528aa48a 100644
--- a/include/dt-bindings/clock/gxbb-clkc.h
+++ b/include/dt-bindings/clock/gxbb-clkc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * GXBB clock tree IDs
  */
diff --git a/include/dt-bindings/clock/jz4740-cgu.h b/include/dt-bindings/clock/jz4740-cgu.h
index 43153d3e9bd2..6ed83f926ae7 100644
--- a/include/dt-bindings/clock/jz4740-cgu.h
+++ b/include/dt-bindings/clock/jz4740-cgu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides clock numbers for the ingenic,jz4740-cgu DT binding.
  *
diff --git a/include/dt-bindings/clock/jz4780-cgu.h b/include/dt-bindings/clock/jz4780-cgu.h
index 467165e3cfee..1859ce53ee38 100644
--- a/include/dt-bindings/clock/jz4780-cgu.h
+++ b/include/dt-bindings/clock/jz4780-cgu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides clock numbers for the ingenic,jz4780-cgu DT binding.
  *
diff --git a/include/dt-bindings/clock/marvell,mmp2.h b/include/dt-bindings/clock/marvell,mmp2.h
index 7a510384a82a..228a5e234af0 100644
--- a/include/dt-bindings/clock/marvell,mmp2.h
+++ b/include/dt-bindings/clock/marvell,mmp2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_MMP2_CLOCK_H
 #define __DTS_MARVELL_MMP2_CLOCK_H
 
diff --git a/include/dt-bindings/clock/marvell,pxa168.h b/include/dt-bindings/clock/marvell,pxa168.h
index 3e45bdfe1aa4..caf90436b848 100644
--- a/include/dt-bindings/clock/marvell,pxa168.h
+++ b/include/dt-bindings/clock/marvell,pxa168.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_PXA168_CLOCK_H
 #define __DTS_MARVELL_PXA168_CLOCK_H
 
diff --git a/include/dt-bindings/clock/marvell,pxa1928.h b/include/dt-bindings/clock/marvell,pxa1928.h
index d4f2e18919ff..5dca4820297f 100644
--- a/include/dt-bindings/clock/marvell,pxa1928.h
+++ b/include/dt-bindings/clock/marvell,pxa1928.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_PXA1928_CLOCK_H
 #define __DTS_MARVELL_PXA1928_CLOCK_H
 
diff --git a/include/dt-bindings/clock/marvell,pxa910.h b/include/dt-bindings/clock/marvell,pxa910.h
index 135082a0b62f..7bf46238946e 100644
--- a/include/dt-bindings/clock/marvell,pxa910.h
+++ b/include/dt-bindings/clock/marvell,pxa910.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MARVELL_PXA910_CLOCK_H
 #define __DTS_MARVELL_PXA910_CLOCK_H
 
diff --git a/include/dt-bindings/clock/meson8b-clkc.h b/include/dt-bindings/clock/meson8b-clkc.h
index a9c0306330b6..dea9d46d4fa7 100644
--- a/include/dt-bindings/clock/meson8b-clkc.h
+++ b/include/dt-bindings/clock/meson8b-clkc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Meson8b clock tree IDs
  */
diff --git a/include/dt-bindings/clock/mpc512x-clock.h b/include/dt-bindings/clock/mpc512x-clock.h
index 4f94919327ce..13c316bf2796 100644
--- a/include/dt-bindings/clock/mpc512x-clock.h
+++ b/include/dt-bindings/clock/mpc512x-clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for MPC512x clock specs in DT bindings.
  */
diff --git a/include/dt-bindings/clock/rockchip,rk808.h b/include/dt-bindings/clock/rockchip,rk808.h
index 1a873432f965..75dabfc6adc1 100644
--- a/include/dt-bindings/clock/rockchip,rk808.h
+++ b/include/dt-bindings/clock/rockchip,rk808.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index RK808 pmic clkout
  */
diff --git a/include/dt-bindings/clock/ste-ab8500.h b/include/dt-bindings/clock/ste-ab8500.h
index 6731f1f00a84..fb42dd0cab5f 100644
--- a/include/dt-bindings/clock/ste-ab8500.h
+++ b/include/dt-bindings/clock/ste-ab8500.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __STE_CLK_AB8500_H__
 #define __STE_CLK_AB8500_H__
 
diff --git a/include/dt-bindings/clock/stih407-clks.h b/include/dt-bindings/clock/stih407-clks.h
index 082edd9badfa..f0936c133772 100644
--- a/include/dt-bindings/clock/stih407-clks.h
+++ b/include/dt-bindings/clock/stih407-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH407 SoC.
diff --git a/include/dt-bindings/clock/stih410-clks.h b/include/dt-bindings/clock/stih410-clks.h
index 2097a4bbe155..90cbe6154c39 100644
--- a/include/dt-bindings/clock/stih410-clks.h
+++ b/include/dt-bindings/clock/stih410-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH410 SoC.
diff --git a/include/dt-bindings/clock/stih416-clks.h b/include/dt-bindings/clock/stih416-clks.h
index f9bdbd13568d..74302278024e 100644
--- a/include/dt-bindings/clock/stih416-clks.h
+++ b/include/dt-bindings/clock/stih416-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH416 SoC.
diff --git a/include/dt-bindings/clock/stih418-clks.h b/include/dt-bindings/clock/stih418-clks.h
index b62aa0b20217..0e7fba0c52b3 100644
--- a/include/dt-bindings/clock/stih418-clks.h
+++ b/include/dt-bindings/clock/stih418-clks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants clk index STMicroelectronics
  * STiH418 SoC.
diff --git a/include/dt-bindings/clock/tegra114-car.h b/include/dt-bindings/clock/tegra114-car.h
index ed5ca218c857..bb5c2c999c05 100644
--- a/include/dt-bindings/clock/tegra114-car.h
+++ b/include/dt-bindings/clock/tegra114-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra114-car.
  *
diff --git a/include/dt-bindings/clock/tegra124-car-common.h b/include/dt-bindings/clock/tegra124-car-common.h
index 9352c7e2ce0b..4331f1df6ebe 100644
--- a/include/dt-bindings/clock/tegra124-car-common.h
+++ b/include/dt-bindings/clock/tegra124-car-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra124-car or
  * nvidia,tegra132-car.
diff --git a/include/dt-bindings/clock/tegra124-car.h b/include/dt-bindings/clock/tegra124-car.h
index 2860737f0443..c520ee231950 100644
--- a/include/dt-bindings/clock/tegra124-car.h
+++ b/include/dt-bindings/clock/tegra124-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides Tegra124-specific constants for binding
  * nvidia,tegra124-car.
diff --git a/include/dt-bindings/clock/tegra186-clock.h b/include/dt-bindings/clock/tegra186-clock.h
index f73d32098f99..d6b525f4566f 100644
--- a/include/dt-bindings/clock/tegra186-clock.h
+++ b/include/dt-bindings/clock/tegra186-clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /** @file */
 
 #ifndef _MACH_T186_CLK_T186_H
diff --git a/include/dt-bindings/clock/tegra20-car.h b/include/dt-bindings/clock/tegra20-car.h
index 04500b243a4d..b21a0eb32921 100644
--- a/include/dt-bindings/clock/tegra20-car.h
+++ b/include/dt-bindings/clock/tegra20-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra20-car.
  *
diff --git a/include/dt-bindings/clock/tegra210-car.h b/include/dt-bindings/clock/tegra210-car.h
index 46689cd3750b..a9dc1457cb00 100644
--- a/include/dt-bindings/clock/tegra210-car.h
+++ b/include/dt-bindings/clock/tegra210-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra210-car.
  *
diff --git a/include/dt-bindings/clock/tegra30-car.h b/include/dt-bindings/clock/tegra30-car.h
index 7213354b9652..3c90f1535551 100644
--- a/include/dt-bindings/clock/tegra30-car.h
+++ b/include/dt-bindings/clock/tegra30-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra30-car.
  *
diff --git a/include/dt-bindings/display/tda998x.h b/include/dt-bindings/display/tda998x.h
index 34757a3847ef..746831ff396c 100644
--- a/include/dt-bindings/display/tda998x.h
+++ b/include/dt-bindings/display/tda998x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_TDA998X_H
 #define _DT_BINDINGS_TDA998X_H
 
diff --git a/include/dt-bindings/gpio/gpio.h b/include/dt-bindings/gpio/gpio.h
index c5074584561d..32dd58a3d13c 100644
--- a/include/dt-bindings/gpio/gpio.h
+++ b/include/dt-bindings/gpio/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most GPIO bindings.
  *
diff --git a/include/dt-bindings/gpio/tegra-gpio.h b/include/dt-bindings/gpio/tegra-gpio.h
index a1c09e88e80b..7625dbc577c2 100644
--- a/include/dt-bindings/gpio/tegra-gpio.h
+++ b/include/dt-bindings/gpio/tegra-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra*-gpio.
  *
diff --git a/include/dt-bindings/gpio/tegra186-gpio.h b/include/dt-bindings/gpio/tegra186-gpio.h
index 38001c7023f1..463ad398fe3e 100644
--- a/include/dt-bindings/gpio/tegra186-gpio.h
+++ b/include/dt-bindings/gpio/tegra186-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra186-gpio*.
  *
diff --git a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
index 87abdd4a7674..08ef4d298b94 100644
--- a/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
+++ b/include/dt-bindings/iio/adc/fsl-imx25-gcq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for configuring the I.MX25 ADC
  */
diff --git a/include/dt-bindings/iio/adi,ad5592r.h b/include/dt-bindings/iio/adi,ad5592r.h
index c48aca1dcade..9f8c7b808cd1 100644
--- a/include/dt-bindings/iio/adi,ad5592r.h
+++ b/include/dt-bindings/iio/adi,ad5592r.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _DT_BINDINGS_ADI_AD5592R_H
 #define _DT_BINDINGS_ADI_AD5592R_H
diff --git a/include/dt-bindings/input/input.h b/include/dt-bindings/input/input.h
index a21413324a3f..bcf0ae100f21 100644
--- a/include/dt-bindings/input/input.h
+++ b/include/dt-bindings/input/input.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most input bindings.
  *
diff --git a/include/dt-bindings/interrupt-controller/arm-gic.h b/include/dt-bindings/interrupt-controller/arm-gic.h
index d4110d5caa3e..0c85f65c81c7 100644
--- a/include/dt-bindings/interrupt-controller/arm-gic.h
+++ b/include/dt-bindings/interrupt-controller/arm-gic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the ARM GIC.
  */
diff --git a/include/dt-bindings/interrupt-controller/irq.h b/include/dt-bindings/interrupt-controller/irq.h
index 33a1003c55aa..a8b310555f14 100644
--- a/include/dt-bindings/interrupt-controller/irq.h
+++ b/include/dt-bindings/interrupt-controller/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most IRQ bindings.
  *
diff --git a/include/dt-bindings/interrupt-controller/mips-gic.h b/include/dt-bindings/interrupt-controller/mips-gic.h
index cf35a577e371..bd45cee0c3f0 100644
--- a/include/dt-bindings/interrupt-controller/mips-gic.h
+++ b/include/dt-bindings/interrupt-controller/mips-gic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
 #define _DT_BINDINGS_INTERRUPT_CONTROLLER_MIPS_GIC_H
 
diff --git a/include/dt-bindings/interrupt-controller/mvebu-icu.h b/include/dt-bindings/interrupt-controller/mvebu-icu.h
index 8249558545c7..bb5217c64206 100644
--- a/include/dt-bindings/interrupt-controller/mvebu-icu.h
+++ b/include/dt-bindings/interrupt-controller/mvebu-icu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the MVEBU ICU driver.
  */
diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
index 7958bec7de8c..e171d0a6beb2 100644
--- a/include/dt-bindings/leds/common.h
+++ b/include/dt-bindings/leds/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for the common LEDs device tree bindings.
  *
diff --git a/include/dt-bindings/leds/leds-ns2.h b/include/dt-bindings/leds/leds-ns2.h
index 491c5f974a92..fd615749e703 100644
--- a/include/dt-bindings/leds/leds-ns2.h
+++ b/include/dt-bindings/leds/leds-ns2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_LEDS_NS2_H
 #define _DT_BINDINGS_LEDS_NS2_H
 
diff --git a/include/dt-bindings/mailbox/tegra186-hsp.h b/include/dt-bindings/mailbox/tegra186-hsp.h
index f5d66e5f5f10..bcab5b7ca785 100644
--- a/include/dt-bindings/mailbox/tegra186-hsp.h
+++ b/include/dt-bindings/mailbox/tegra186-hsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra186-hsp.
  */
diff --git a/include/dt-bindings/media/c8sectpfe.h b/include/dt-bindings/media/c8sectpfe.h
index a0b5c7be683c..6b1fb6f5413b 100644
--- a/include/dt-bindings/media/c8sectpfe.h
+++ b/include/dt-bindings/media/c8sectpfe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_C8SECTPFE_H
 #define __DT_C8SECTPFE_H
 
diff --git a/include/dt-bindings/memory/tegra114-mc.h b/include/dt-bindings/memory/tegra114-mc.h
index 8f48985a3139..27c8386987ff 100644
--- a/include/dt-bindings/memory/tegra114-mc.h
+++ b/include/dt-bindings/memory/tegra114-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA114_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA114_MC_H
 
diff --git a/include/dt-bindings/memory/tegra124-mc.h b/include/dt-bindings/memory/tegra124-mc.h
index 7d8ee798f34e..f534d7c06019 100644
--- a/include/dt-bindings/memory/tegra124-mc.h
+++ b/include/dt-bindings/memory/tegra124-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA124_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA124_MC_H
 
diff --git a/include/dt-bindings/memory/tegra210-mc.h b/include/dt-bindings/memory/tegra210-mc.h
index d1731bc14dbc..4490f7cf4772 100644
--- a/include/dt-bindings/memory/tegra210-mc.h
+++ b/include/dt-bindings/memory/tegra210-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA210_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA210_MC_H
 
diff --git a/include/dt-bindings/memory/tegra30-mc.h b/include/dt-bindings/memory/tegra30-mc.h
index 502beb03d777..3cac81919023 100644
--- a/include/dt-bindings/memory/tegra30-mc.h
+++ b/include/dt-bindings/memory/tegra30-mc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DT_BINDINGS_MEMORY_TEGRA30_MC_H
 #define DT_BINDINGS_MEMORY_TEGRA30_MC_H
 
diff --git a/include/dt-bindings/mfd/as3722.h b/include/dt-bindings/mfd/as3722.h
index e66c0898c58e..9ef0cba90407 100644
--- a/include/dt-bindings/mfd/as3722.h
+++ b/include/dt-bindings/mfd/as3722.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for ams AS3722 device bindings.
  *
diff --git a/include/dt-bindings/mfd/dbx500-prcmu.h b/include/dt-bindings/mfd/dbx500-prcmu.h
index 552a2d174f01..0404bcc47dd4 100644
--- a/include/dt-bindings/mfd/dbx500-prcmu.h
+++ b/include/dt-bindings/mfd/dbx500-prcmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the PRCMU bindings.
  *
diff --git a/include/dt-bindings/mfd/max77620.h b/include/dt-bindings/mfd/max77620.h
index b911a0720ccd..1e19c5f908d7 100644
--- a/include/dt-bindings/mfd/max77620.h
+++ b/include/dt-bindings/mfd/max77620.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for MAXIM MAX77620 device bindings.
  *
diff --git a/include/dt-bindings/mfd/palmas.h b/include/dt-bindings/mfd/palmas.h
index cdb075aae4e1..c4f1d57ff4ff 100644
--- a/include/dt-bindings/mfd/palmas.h
+++ b/include/dt-bindings/mfd/palmas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides macros for Palmas device bindings.
  *
diff --git a/include/dt-bindings/mfd/qcom-rpm.h b/include/dt-bindings/mfd/qcom-rpm.h
index 54aef5e21763..c9204c4df520 100644
--- a/include/dt-bindings/mfd/qcom-rpm.h
+++ b/include/dt-bindings/mfd/qcom-rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the Qualcomm RPM bindings.
  */
diff --git a/include/dt-bindings/mfd/st-lpc.h b/include/dt-bindings/mfd/st-lpc.h
index d05894afa7e7..88a7f56843bc 100644
--- a/include/dt-bindings/mfd/st-lpc.h
+++ b/include/dt-bindings/mfd/st-lpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides shared DT/Driver defines for ST's LPC device
  *
diff --git a/include/dt-bindings/mfd/stm32f4-rcc.h b/include/dt-bindings/mfd/stm32f4-rcc.h
index 082a81c94298..309e8c79f27b 100644
--- a/include/dt-bindings/mfd/stm32f4-rcc.h
+++ b/include/dt-bindings/mfd/stm32f4-rcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the STM32F4 RCC IP
  */
diff --git a/include/dt-bindings/mfd/stm32f7-rcc.h b/include/dt-bindings/mfd/stm32f7-rcc.h
index e36cc69959c7..8b7b7197ffd7 100644
--- a/include/dt-bindings/mfd/stm32f7-rcc.h
+++ b/include/dt-bindings/mfd/stm32f7-rcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the STM32F7 RCC IP
  */
diff --git a/include/dt-bindings/mips/lantiq_rcu_gphy.h b/include/dt-bindings/mips/lantiq_rcu_gphy.h
new file mode 100644
index 000000000000..fa1a63773342
--- /dev/null
+++ b/include/dt-bindings/mips/lantiq_rcu_gphy.h
@@ -0,0 +1,15 @@
+/*
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ *
+ *  Copyright (C) 2016 Martin Blumenstingl <martin.blumenstingl@googlemail.com>
+ *  Copyright (C) 2017 Hauke Mehrtens <hauke@hauke-m.de>
+ */
+#ifndef _DT_BINDINGS_MIPS_LANTIQ_RCU_GPHY_H
+#define _DT_BINDINGS_MIPS_LANTIQ_RCU_GPHY_H
+
+#define GPHY_MODE_GE	1
+#define GPHY_MODE_FE	2
+
+#endif /* _DT_BINDINGS_MIPS_LANTIQ_RCU_GPHY_H */
diff --git a/include/dt-bindings/mux/mux.h b/include/dt-bindings/mux/mux.h
index c8e855c4a609..042719218dbf 100644
--- a/include/dt-bindings/mux/mux.h
+++ b/include/dt-bindings/mux/mux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most Multiplexer bindings.
  *
diff --git a/include/dt-bindings/phy/phy.h b/include/dt-bindings/phy/phy.h
index 6c901930eb3e..d16e8755f6a9 100644
--- a/include/dt-bindings/phy/phy.h
+++ b/include/dt-bindings/phy/phy.h
@@ -15,5 +15,6 @@
 #define PHY_TYPE_PCIE		2
 #define PHY_TYPE_USB2		3
 #define PHY_TYPE_USB3		4
+#define PHY_TYPE_UFS		5
 
 #endif /* _DT_BINDINGS_PHY */
diff --git a/include/dt-bindings/pinctrl/am33xx.h b/include/dt-bindings/pinctrl/am33xx.h
index 226f77246a70..7d947a597220 100644
--- a/include/dt-bindings/pinctrl/am33xx.h
+++ b/include/dt-bindings/pinctrl/am33xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants specific to AM33XX pinctrl bindings.
  */
diff --git a/include/dt-bindings/pinctrl/am43xx.h b/include/dt-bindings/pinctrl/am43xx.h
index 344bd1eb3386..46789157660b 100644
--- a/include/dt-bindings/pinctrl/am43xx.h
+++ b/include/dt-bindings/pinctrl/am43xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants specific to AM43XX pinctrl bindings.
  */
diff --git a/include/dt-bindings/pinctrl/dm814x.h b/include/dt-bindings/pinctrl/dm814x.h
index 0f484273da0d..afbabbc4ddbb 100644
--- a/include/dt-bindings/pinctrl/dm814x.h
+++ b/include/dt-bindings/pinctrl/dm814x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants specific to DM814X pinctrl bindings.
  */
diff --git a/include/dt-bindings/pinctrl/mt6397-pinfunc.h b/include/dt-bindings/pinctrl/mt6397-pinfunc.h
index 85739b308c2f..f393fbd68905 100644
--- a/include/dt-bindings/pinctrl/mt6397-pinfunc.h
+++ b/include/dt-bindings/pinctrl/mt6397-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MT6397_PINFUNC_H
 #define __DTS_MT6397_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/mt7623-pinfunc.h b/include/dt-bindings/pinctrl/mt7623-pinfunc.h
index 436a87be864a..2d6a7b1d7be2 100644
--- a/include/dt-bindings/pinctrl/mt7623-pinfunc.h
+++ b/include/dt-bindings/pinctrl/mt7623-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DTS_MT7623_PINFUNC_H
 #define __DTS_MT7623_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/omap.h b/include/dt-bindings/pinctrl/omap.h
index fbd6f7202476..49b5dea2b388 100644
--- a/include/dt-bindings/pinctrl/omap.h
+++ b/include/dt-bindings/pinctrl/omap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for OMAP pinctrl bindings.
  *
diff --git a/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h b/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
index 914d56da9324..ac63c399b4b6 100644
--- a/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
+++ b/include/dt-bindings/pinctrl/pinctrl-tegra-xusb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H
 #define _DT_BINDINGS_PINCTRL_TEGRA_XUSB_H 1
 
diff --git a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
index b8ff8824e21b..e5df5ce45a0f 100644
--- a/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
+++ b/include/dt-bindings/pinctrl/qcom,pmic-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the Qualcomm PMIC GPIO binding.
  */
diff --git a/include/dt-bindings/pinctrl/qcom,pmic-mpp.h b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
index 2e360d8f7801..32e66ee7e830 100644
--- a/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
+++ b/include/dt-bindings/pinctrl/qcom,pmic-mpp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the Qualcomm PMIC's
  * Multi-Purpose Pin binding.
diff --git a/include/dt-bindings/pinctrl/r7s72100-pinctrl.h b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h
index 6b609fe10910..cdb950246880 100644
--- a/include/dt-bindings/pinctrl/r7s72100-pinctrl.h
+++ b/include/dt-bindings/pinctrl/r7s72100-pinctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Defines macros and constants for Renesas RZ/A1 pin controller pin
  * muxing functions.
diff --git a/include/dt-bindings/pinctrl/stm32f429-pinfunc.h b/include/dt-bindings/pinctrl/stm32f429-pinfunc.h
index 26f18798d949..9a5a028f0d00 100644
--- a/include/dt-bindings/pinctrl/stm32f429-pinfunc.h
+++ b/include/dt-bindings/pinctrl/stm32f429-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_STM32F429_PINFUNC_H
 #define _DT_BINDINGS_STM32F429_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/stm32f746-pinfunc.h b/include/dt-bindings/pinctrl/stm32f746-pinfunc.h
index 6348c6a830e9..4c28f8f41621 100644
--- a/include/dt-bindings/pinctrl/stm32f746-pinfunc.h
+++ b/include/dt-bindings/pinctrl/stm32f746-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_STM32F746_PINFUNC_H
 #define _DT_BINDINGS_STM32F746_PINFUNC_H
 
diff --git a/include/dt-bindings/pinctrl/stm32h7-pinfunc.h b/include/dt-bindings/pinctrl/stm32h7-pinfunc.h
index cb673b5e8e1e..06d99a8ddbc6 100644
--- a/include/dt-bindings/pinctrl/stm32h7-pinfunc.h
+++ b/include/dt-bindings/pinctrl/stm32h7-pinfunc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_STM32H7_PINFUNC_H
 #define _DT_BINDINGS_STM32H7_PINFUNC_H
 
diff --git a/include/dt-bindings/power/mt8173-power.h b/include/dt-bindings/power/mt8173-power.h
index b34cee95aa89..15d531aa6e78 100644
--- a/include/dt-bindings/power/mt8173-power.h
+++ b/include/dt-bindings/power/mt8173-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_POWER_MT8183_POWER_H
 #define _DT_BINDINGS_POWER_MT8183_POWER_H
 
diff --git a/include/dt-bindings/power/rk3288-power.h b/include/dt-bindings/power/rk3288-power.h
index b8b1045f3daa..f710b56ccd81 100644
--- a/include/dt-bindings/power/rk3288-power.h
+++ b/include/dt-bindings/power/rk3288-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3288_POWER_H__
 #define __DT_BINDINGS_POWER_RK3288_POWER_H__
 
diff --git a/include/dt-bindings/power/rk3328-power.h b/include/dt-bindings/power/rk3328-power.h
index 10c3c3715334..02e3d7fc1cce 100644
--- a/include/dt-bindings/power/rk3328-power.h
+++ b/include/dt-bindings/power/rk3328-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3328_POWER_H__
 #define __DT_BINDINGS_POWER_RK3328_POWER_H__
 
diff --git a/include/dt-bindings/power/rk3368-power.h b/include/dt-bindings/power/rk3368-power.h
index 93633d57ed84..5e602dbd64ec 100644
--- a/include/dt-bindings/power/rk3368-power.h
+++ b/include/dt-bindings/power/rk3368-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3368_POWER_H__
 #define __DT_BINDINGS_POWER_RK3368_POWER_H__
 
diff --git a/include/dt-bindings/power/rk3399-power.h b/include/dt-bindings/power/rk3399-power.h
index 168b3bfbd6f5..aedd8b180fe4 100644
--- a/include/dt-bindings/power/rk3399-power.h
+++ b/include/dt-bindings/power/rk3399-power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_BINDINGS_POWER_RK3399_POWER_H__
 #define __DT_BINDINGS_POWER_RK3399_POWER_H__
 
diff --git a/include/dt-bindings/pwm/pwm.h b/include/dt-bindings/pwm/pwm.h
index 96f49e82253e..ab9a077e3c7d 100644
--- a/include/dt-bindings/pwm/pwm.h
+++ b/include/dt-bindings/pwm/pwm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for most PWM bindings.
  *
diff --git a/include/dt-bindings/reset/cortina,gemini-reset.h b/include/dt-bindings/reset/cortina,gemini-reset.h
index 0b886aee65e3..f48aff23847a 100644
--- a/include/dt-bindings/reset/cortina,gemini-reset.h
+++ b/include/dt-bindings/reset/cortina,gemini-reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_RESET_CORTINA_GEMINI_H
 #define _DT_BINDINGS_RESET_CORTINA_GEMINI_H
 
diff --git a/include/dt-bindings/reset/hisi,hi6220-resets.h b/include/dt-bindings/reset/hisi,hi6220-resets.h
index 322ec5335b65..e7c362a81a97 100644
--- a/include/dt-bindings/reset/hisi,hi6220-resets.h
+++ b/include/dt-bindings/reset/hisi,hi6220-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * This header provides index for the reset controller
  * based on hi6220 SoC.
diff --git a/include/dt-bindings/reset/pistachio-resets.h b/include/dt-bindings/reset/pistachio-resets.h
index 60a189b1faef..5bb4dd0d6377 100644
--- a/include/dt-bindings/reset/pistachio-resets.h
+++ b/include/dt-bindings/reset/pistachio-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * present in the Pistachio SoC
diff --git a/include/dt-bindings/reset/snps,hsdk-reset.h b/include/dt-bindings/reset/snps,hsdk-reset.h
new file mode 100644
index 000000000000..e1a643e4bc91
--- /dev/null
+++ b/include/dt-bindings/reset/snps,hsdk-reset.h
@@ -0,0 +1,17 @@
+/**
+ * This header provides index for the HSDK reset controller.
+ */
+#ifndef _DT_BINDINGS_RESET_CONTROLLER_SNPS_HSDK
+#define _DT_BINDINGS_RESET_CONTROLLER_SNPS_HSDK
+
+#define HSDK_APB_RESET	0
+#define HSDK_AXI_RESET	1
+#define HSDK_ETH_RESET	2
+#define HSDK_USB_RESET	3
+#define HSDK_SDIO_RESET	4
+#define HSDK_HDMI_RESET	5
+#define HSDK_GFX_RESET	6
+#define HSDK_DMAC_RESET	7
+#define HSDK_EBI_RESET	8
+
+#endif /*_DT_BINDINGS_RESET_CONTROLLER_SNPS_HSDK*/
diff --git a/include/dt-bindings/reset/snps,hsdk-v1-reset.h b/include/dt-bindings/reset/snps,hsdk-v1-reset.h
deleted file mode 100644
index d898c89b7123..000000000000
--- a/include/dt-bindings/reset/snps,hsdk-v1-reset.h
+++ /dev/null
@@ -1,17 +0,0 @@
-/**
- * This header provides index for the HSDK v1 reset controller.
- */
-#ifndef _DT_BINDINGS_RESET_CONTROLLER_HSDK_V1
-#define _DT_BINDINGS_RESET_CONTROLLER_HSDK_V1
-
-#define HSDK_V1_APB_RESET	0
-#define HSDK_V1_AXI_RESET	1
-#define HSDK_V1_ETH_RESET	2
-#define HSDK_V1_USB_RESET	3
-#define HSDK_V1_SDIO_RESET	4
-#define HSDK_V1_HDMI_RESET	5
-#define HSDK_V1_GFX_RESET	6
-#define HSDK_V1_DMAC_RESET	7
-#define HSDK_V1_EBI_RESET	8
-
-#endif /*_DT_BINDINGS_RESET_CONTROLLER_HSDK_V1*/
diff --git a/include/dt-bindings/reset/stih407-resets.h b/include/dt-bindings/reset/stih407-resets.h
index 4ab3a1c94958..f2a2c4f7f06a 100644
--- a/include/dt-bindings/reset/stih407-resets.h
+++ b/include/dt-bindings/reset/stih407-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * based peripheral powerdown requests on the STMicroelectronics
diff --git a/include/dt-bindings/reset/stih415-resets.h b/include/dt-bindings/reset/stih415-resets.h
index c2329fe29cf6..96f7831a1db0 100644
--- a/include/dt-bindings/reset/stih415-resets.h
+++ b/include/dt-bindings/reset/stih415-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * based peripheral powerdown requests on the STMicroelectronics
diff --git a/include/dt-bindings/reset/stih416-resets.h b/include/dt-bindings/reset/stih416-resets.h
index fcf9af1ac0b2..f682c906ed5a 100644
--- a/include/dt-bindings/reset/stih416-resets.h
+++ b/include/dt-bindings/reset/stih416-resets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the reset controller
  * based peripheral powerdown requests on the STMicroelectronics
diff --git a/include/dt-bindings/reset/tegra124-car.h b/include/dt-bindings/reset/tegra124-car.h
index 070e4f6e7486..97d2f3db82bf 100644
--- a/include/dt-bindings/reset/tegra124-car.h
+++ b/include/dt-bindings/reset/tegra124-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides Tegra124-specific constants for binding
  * nvidia,tegra124-car.
diff --git a/include/dt-bindings/reset/tegra210-car.h b/include/dt-bindings/reset/tegra210-car.h
index 296ec6e3f8c0..9dc84ec76301 100644
--- a/include/dt-bindings/reset/tegra210-car.h
+++ b/include/dt-bindings/reset/tegra210-car.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides Tegra210-specific constants for binding
  * nvidia,tegra210-car.
diff --git a/include/dt-bindings/soc/rockchip,boot-mode.h b/include/dt-bindings/soc/rockchip,boot-mode.h
index ae7c867e736a..4b0914c0989d 100644
--- a/include/dt-bindings/soc/rockchip,boot-mode.h
+++ b/include/dt-bindings/soc/rockchip,boot-mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ROCKCHIP_BOOT_MODE_H
 #define __ROCKCHIP_BOOT_MODE_H
 
diff --git a/include/dt-bindings/sound/apq8016-lpass.h b/include/dt-bindings/sound/apq8016-lpass.h
index 499076e980a3..3c3e16c0aadb 100644
--- a/include/dt-bindings/sound/apq8016-lpass.h
+++ b/include/dt-bindings/sound/apq8016-lpass.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_APQ8016_LPASS_H
 #define __DT_APQ8016_LPASS_H
 
diff --git a/include/dt-bindings/sound/audio-jack-events.h b/include/dt-bindings/sound/audio-jack-events.h
index 378349f28069..1b29b295126a 100644
--- a/include/dt-bindings/sound/audio-jack-events.h
+++ b/include/dt-bindings/sound/audio-jack-events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __AUDIO_JACK_EVENTS_H
 #define __AUDIO_JACK_EVENTS_H
 
diff --git a/include/dt-bindings/sound/cs35l32.h b/include/dt-bindings/sound/cs35l32.h
index 0c6d6a3c15a2..7549d5019e8b 100644
--- a/include/dt-bindings/sound/cs35l32.h
+++ b/include/dt-bindings/sound/cs35l32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_CS35L32_H
 #define __DT_CS35L32_H
 
diff --git a/include/dt-bindings/sound/fsl-imx-audmux.h b/include/dt-bindings/sound/fsl-imx-audmux.h
index 50b09e96f247..751fe1416f95 100644
--- a/include/dt-bindings/sound/fsl-imx-audmux.h
+++ b/include/dt-bindings/sound/fsl-imx-audmux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_FSL_IMX_AUDMUX_H
 #define __DT_FSL_IMX_AUDMUX_H
 
diff --git a/include/dt-bindings/sound/samsung-i2s.h b/include/dt-bindings/sound/samsung-i2s.h
index 0c69818d530c..77545f14c379 100644
--- a/include/dt-bindings/sound/samsung-i2s.h
+++ b/include/dt-bindings/sound/samsung-i2s.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DT_BINDINGS_SAMSUNG_I2S_H
 #define _DT_BINDINGS_SAMSUNG_I2S_H
 
diff --git a/include/dt-bindings/sound/tas2552.h b/include/dt-bindings/sound/tas2552.h
index a4e1a079980b..0daeb8385837 100644
--- a/include/dt-bindings/sound/tas2552.h
+++ b/include/dt-bindings/sound/tas2552.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_TAS2552_H
 #define __DT_TAS2552_H
 
diff --git a/include/dt-bindings/sound/tlv320aic31xx-micbias.h b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
index f5cb772ab9c8..c6895a18a455 100644
--- a/include/dt-bindings/sound/tlv320aic31xx-micbias.h
+++ b/include/dt-bindings/sound/tlv320aic31xx-micbias.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DT_TLV320AIC31XX_MICBIAS_H
 #define __DT_TLV320AIC31XX_MICBIAS_H
 
diff --git a/include/dt-bindings/thermal/lm90.h b/include/dt-bindings/thermal/lm90.h
index 8c2e3095f704..eed91a16c32f 100644
--- a/include/dt-bindings/thermal/lm90.h
+++ b/include/dt-bindings/thermal/lm90.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for the LM90 thermal bindings.
  */
diff --git a/include/dt-bindings/thermal/tegra124-soctherm.h b/include/dt-bindings/thermal/tegra124-soctherm.h
index 2a99f1d52bb5..c15e8b709a0d 100644
--- a/include/dt-bindings/thermal/tegra124-soctherm.h
+++ b/include/dt-bindings/thermal/tegra124-soctherm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header provides constants for binding nvidia,tegra124-soctherm.
  */
diff --git a/include/keys/ceph-type.h b/include/keys/ceph-type.h
index f69c4ac197a0..aa6d3e050cc7 100644
--- a/include/keys/ceph-type.h
+++ b/include/keys/ceph-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KEYS_CEPH_TYPE_H
 #define _KEYS_CEPH_TYPE_H
 
diff --git a/include/linux/8250_pci.h b/include/linux/8250_pci.h
index b24ff086a662..9c777d2c98f5 100644
--- a/include/linux/8250_pci.h
+++ b/include/linux/8250_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for PCI support.
  */
diff --git a/include/linux/a.out.h b/include/linux/a.out.h
index ee884168989f..600cf45645c6 100644
--- a/include/linux/a.out.h
+++ b/include/linux/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __A_OUT_GNU_H__
 #define __A_OUT_GNU_H__
 
diff --git a/include/linux/acct.h b/include/linux/acct.h
index dccc2d4fe7de..18e1955f81f5 100644
--- a/include/linux/acct.h
+++ b/include/linux/acct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  BSD Process Accounting for Linux - Definitions
  *
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 502af53ec012..dc1ebfeeb5ec 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -864,21 +864,16 @@ static inline void arch_reserve_mem_area(acpi_physical_address addr,
 #endif
 
 #if defined(CONFIG_ACPI) && defined(CONFIG_PM)
-int acpi_dev_runtime_suspend(struct device *dev);
-int acpi_dev_runtime_resume(struct device *dev);
+int acpi_dev_suspend(struct device *dev, bool wakeup);
+int acpi_dev_resume(struct device *dev);
 int acpi_subsys_runtime_suspend(struct device *dev);
 int acpi_subsys_runtime_resume(struct device *dev);
-struct acpi_device *acpi_dev_pm_get_node(struct device *dev);
 int acpi_dev_pm_attach(struct device *dev, bool power_on);
 #else
 static inline int acpi_dev_runtime_suspend(struct device *dev) { return 0; }
 static inline int acpi_dev_runtime_resume(struct device *dev) { return 0; }
 static inline int acpi_subsys_runtime_suspend(struct device *dev) { return 0; }
 static inline int acpi_subsys_runtime_resume(struct device *dev) { return 0; }
-static inline struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
-{
-	return NULL;
-}
 static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 {
 	return -ENODEV;
@@ -887,22 +882,30 @@ static inline int acpi_dev_pm_attach(struct device *dev, bool power_on)
 
 #if defined(CONFIG_ACPI) && defined(CONFIG_PM_SLEEP)
 int acpi_dev_suspend_late(struct device *dev);
-int acpi_dev_resume_early(struct device *dev);
 int acpi_subsys_prepare(struct device *dev);
 void acpi_subsys_complete(struct device *dev);
 int acpi_subsys_suspend_late(struct device *dev);
+int acpi_subsys_suspend_noirq(struct device *dev);
+int acpi_subsys_resume_noirq(struct device *dev);
 int acpi_subsys_resume_early(struct device *dev);
 int acpi_subsys_suspend(struct device *dev);
 int acpi_subsys_freeze(struct device *dev);
+int acpi_subsys_freeze_late(struct device *dev);
+int acpi_subsys_freeze_noirq(struct device *dev);
+int acpi_subsys_thaw_noirq(struct device *dev);
 #else
-static inline int acpi_dev_suspend_late(struct device *dev) { return 0; }
 static inline int acpi_dev_resume_early(struct device *dev) { return 0; }
 static inline int acpi_subsys_prepare(struct device *dev) { return 0; }
 static inline void acpi_subsys_complete(struct device *dev) {}
 static inline int acpi_subsys_suspend_late(struct device *dev) { return 0; }
+static inline int acpi_subsys_suspend_noirq(struct device *dev) { return 0; }
+static inline int acpi_subsys_resume_noirq(struct device *dev) { return 0; }
 static inline int acpi_subsys_resume_early(struct device *dev) { return 0; }
 static inline int acpi_subsys_suspend(struct device *dev) { return 0; }
 static inline int acpi_subsys_freeze(struct device *dev) { return 0; }
+static inline int acpi_subsys_freeze_late(struct device *dev) { return 0; }
+static inline int acpi_subsys_freeze_noirq(struct device *dev) { return 0; }
+static inline int acpi_subsys_thaw_noirq(struct device *dev) { return 0; }
 #endif
 
 #ifdef CONFIG_ACPI
@@ -1254,4 +1257,13 @@ int acpi_irq_get(acpi_handle handle, unsigned int index, struct resource *res)
 }
 #endif
 
+#ifdef CONFIG_ACPI_LPIT
+int lpit_read_residency_count_address(u64 *address);
+#else
+static inline int lpit_read_residency_count_address(u64 *address)
+{
+	return -EINVAL;
+}
+#endif
+
 #endif	/*_LINUX_ACPI_H*/
diff --git a/include/linux/acpi_pmtmr.h b/include/linux/acpi_pmtmr.h
index 1d0ef1ae8036..50d88bf1498d 100644
--- a/include/linux/acpi_pmtmr.h
+++ b/include/linux/acpi_pmtmr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACPI_PMTMR_H_
 #define _ACPI_PMTMR_H_
 
diff --git a/include/linux/adb.h b/include/linux/adb.h
index cde41300c7ad..f6306fc86015 100644
--- a/include/linux/adb.h
+++ b/include/linux/adb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for ADB (Apple Desktop Bus) support.
  */
diff --git a/include/linux/adfs_fs.h b/include/linux/adfs_fs.h
index 0d991071a9d4..4836e382ad52 100644
--- a/include/linux/adfs_fs.h
+++ b/include/linux/adfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADFS_FS_H
 #define _ADFS_FS_H
 
diff --git a/include/linux/aer.h b/include/linux/aer.h
index 43799bd17a02..8f87bbeceef4 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2006 Intel Corp.
  *     Tom Long Nguyen (tom.l.nguyen@intel.com)
diff --git a/include/linux/ahci-remap.h b/include/linux/ahci-remap.h
index 62be3a40239d..230c871ba084 100644
--- a/include/linux/ahci-remap.h
+++ b/include/linux/ahci-remap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AHCI_REMAP_H
 #define _LINUX_AHCI_REMAP_H
 
diff --git a/include/linux/aio.h b/include/linux/aio.h
index fdd0a343f455..9d8aabecfe2d 100644
--- a/include/linux/aio.h
+++ b/include/linux/aio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX__AIO_H
 #define __LINUX__AIO_H
 
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h
index c70aac13244a..0760ca1cb009 100644
--- a/include/linux/alarmtimer.h
+++ b/include/linux/alarmtimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ALARMTIMER_H
 #define _LINUX_ALARMTIMER_H
 
diff --git a/include/linux/altera_jtaguart.h b/include/linux/altera_jtaguart.h
index 953b178a1650..527a142cd530 100644
--- a/include/linux/altera_jtaguart.h
+++ b/include/linux/altera_jtaguart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * altera_jtaguart.h -- Altera JTAG UART driver defines.
  */
diff --git a/include/linux/altera_uart.h b/include/linux/altera_uart.h
index c022c82db7ca..3eb73b8c49c8 100644
--- a/include/linux/altera_uart.h
+++ b/include/linux/altera_uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * altera_uart.h -- Altera UART driver defines.
  */
diff --git a/include/linux/amba/mmci.h b/include/linux/amba/mmci.h
index 8c98113069ce..da8357ba11bc 100644
--- a/include/linux/amba/mmci.h
+++ b/include/linux/amba/mmci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/amba/mmci.h
  */
diff --git a/include/linux/amifd.h b/include/linux/amifd.h
index 346993268b45..202a77dbe46d 100644
--- a/include/linux/amifd.h
+++ b/include/linux/amifd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AMIFD_H
 #define _AMIFD_H
 
diff --git a/include/linux/amifdreg.h b/include/linux/amifdreg.h
index 76188bf48d3b..9b514d05ec70 100644
--- a/include/linux/amifdreg.h
+++ b/include/linux/amifdreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AMIFDREG_H
 #define _LINUX_AMIFDREG_H
 
diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h
index 8013a45242fe..d0d7d96261ad 100644
--- a/include/linux/anon_inodes.h
+++ b/include/linux/anon_inodes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/anon_inodes.h
  *
diff --git a/include/linux/apple_bl.h b/include/linux/apple_bl.h
index 0a95e730fcea..445af2e3cc21 100644
--- a/include/linux/apple_bl.h
+++ b/include/linux/apple_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * apple_bl exported symbols
  */
diff --git a/include/linux/arch_topology.h b/include/linux/arch_topology.h
index 716ce587247e..304511267c82 100644
--- a/include/linux/arch_topology.h
+++ b/include/linux/arch_topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/arch_topology.h - arch specific cpu topology information
  */
@@ -5,15 +6,30 @@
 #define _LINUX_ARCH_TOPOLOGY_H_
 
 #include <linux/types.h>
+#include <linux/percpu.h>
 
 void topology_normalize_cpu_scale(void);
 
 struct device_node;
 bool topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu);
 
+DECLARE_PER_CPU(unsigned long, cpu_scale);
+
 struct sched_domain;
-unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu);
+static inline
+unsigned long topology_get_cpu_scale(struct sched_domain *sd, int cpu)
+{
+	return per_cpu(cpu_scale, cpu);
+}
 
 void topology_set_cpu_scale(unsigned int cpu, unsigned long capacity);
 
+DECLARE_PER_CPU(unsigned long, freq_scale);
+
+static inline
+unsigned long topology_get_freq_scale(struct sched_domain *sd, int cpu)
+{
+	return per_cpu(freq_scale, cpu);
+}
+
 #endif /* _LINUX_ARCH_TOPOLOGY_H_ */
diff --git a/include/linux/ata_platform.h b/include/linux/ata_platform.h
index 619d9e78e644..ff2120215dec 100644
--- a/include/linux/ata_platform.h
+++ b/include/linux/ata_platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ATA_PLATFORM_H
 #define __LINUX_ATA_PLATFORM_H
 
diff --git a/include/linux/atalk.h b/include/linux/atalk.h
index 73fd8b7e9534..4d356e168692 100644
--- a/include/linux/atalk.h
+++ b/include/linux/atalk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ATALK_H__
 #define __LINUX_ATALK_H__
 
diff --git a/include/linux/atm.h b/include/linux/atm.h
index 30006c435951..4b50fd0a6eab 100644
--- a/include/linux/atm.h
+++ b/include/linux/atm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atm.h - general ATM declarations */
 #ifndef _LINUX_ATM_H
 #define _LINUX_ATM_H
diff --git a/include/linux/atm_tcp.h b/include/linux/atm_tcp.h
index db6b65fc0aec..c8ecf6f68fb5 100644
--- a/include/linux/atm_tcp.h
+++ b/include/linux/atm_tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
 	       driver-specific utilities) */
 
diff --git a/include/linux/atmdev.h b/include/linux/atmdev.h
index 0ec9bdb1cc9f..0c27515d2cf6 100644
--- a/include/linux/atmdev.h
+++ b/include/linux/atmdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* atmdev.h - ATM device driver declarations and various related items */
 #ifndef LINUX_ATMDEV_H
 #define LINUX_ATMDEV_H
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
index 42a9e1884842..1491af38cc6e 100644
--- a/include/linux/atmel-mci.h
+++ b/include/linux/atmel-mci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ATMEL_MCI_H
 #define __LINUX_ATMEL_MCI_H
 
diff --git a/include/linux/atmel-ssc.h b/include/linux/atmel-ssc.h
index fdb545101ede..6091d2abc1eb 100644
--- a/include/linux/atmel-ssc.h
+++ b/include/linux/atmel-ssc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDE_ATMEL_SSC_H
 #define __INCLUDE_ATMEL_SSC_H
 
diff --git a/include/linux/atomic.h b/include/linux/atomic.h
index 40d6bfec0e0d..8b276fd9a127 100644
--- a/include/linux/atomic.h
+++ b/include/linux/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Atomic operations usable in machine independent code */
 #ifndef _LINUX_ATOMIC_H
 #define _LINUX_ATOMIC_H
@@ -653,6 +654,8 @@ static inline int atomic_dec_if_positive(atomic_t *v)
 }
 #endif
 
+#define atomic_cond_read_acquire(v, c)	smp_cond_load_acquire(&(v)->counter, (c))
+
 #ifdef CONFIG_GENERIC_ATOMIC64
 #include <asm-generic/atomic64.h>
 #endif
@@ -1072,6 +1075,8 @@ static inline long long atomic64_fetch_andnot_release(long long i, atomic64_t *v
 }
 #endif
 
+#define atomic64_cond_read_acquire(v, c)	smp_cond_load_acquire(&(v)->counter, (c))
+
 #include <asm-generic/atomic-long.h>
 
 #endif /* _LINUX_ATOMIC_H */
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 2150bdccfbab..d66220dac364 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -314,11 +314,7 @@ void audit_core_dumps(long signr);
 
 static inline void audit_seccomp(unsigned long syscall, long signr, int code)
 {
-	if (!audit_enabled)
-		return;
-
-	/* Force a record to be reported if a signal was delivered. */
-	if (signr || unlikely(!audit_dummy_context()))
+	if (audit_enabled && unlikely(!audit_dummy_context()))
 		__audit_seccomp(syscall, signr, code);
 }
 
@@ -351,7 +347,7 @@ extern int __audit_socketcall(int nargs, unsigned long *args);
 extern int __audit_sockaddr(int len, void *addr);
 extern void __audit_fd_pair(int fd1, int fd2);
 extern void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr);
-extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout);
+extern void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout);
 extern void __audit_mq_notify(mqd_t mqdes, const struct sigevent *notification);
 extern void __audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat);
 extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
@@ -360,6 +356,7 @@ extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
 extern void __audit_log_capset(const struct cred *new, const struct cred *old);
 extern void __audit_mmap_fd(int fd, int flags);
 extern void __audit_log_kern_module(char *name);
+extern void __audit_fanotify(unsigned int response);
 
 static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
 {
@@ -412,7 +409,7 @@ static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
 	if (unlikely(!audit_dummy_context()))
 		__audit_mq_open(oflag, mode, attr);
 }
-static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec *abs_timeout)
+static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio, const struct timespec64 *abs_timeout)
 {
 	if (unlikely(!audit_dummy_context()))
 		__audit_mq_sendrecv(mqdes, msg_len, msg_prio, abs_timeout);
@@ -456,6 +453,12 @@ static inline void audit_log_kern_module(char *name)
 		__audit_log_kern_module(name);
 }
 
+static inline void audit_fanotify(unsigned int response)
+{
+	if (!audit_dummy_context())
+		__audit_fanotify(response);
+}
+
 extern int audit_n_rules;
 extern int audit_signals;
 #else /* CONFIG_AUDITSYSCALL */
@@ -549,7 +552,7 @@ static inline void audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
 { }
 static inline void audit_mq_sendrecv(mqd_t mqdes, size_t msg_len,
 				     unsigned int msg_prio,
-				     const struct timespec *abs_timeout)
+				     const struct timespec64 *abs_timeout)
 { }
 static inline void audit_mq_notify(mqd_t mqdes,
 				   const struct sigevent *notification)
@@ -572,6 +575,9 @@ static inline void audit_log_kern_module(char *name)
 {
 }
 
+static inline void audit_fanotify(unsigned int response)
+{ }
+
 static inline void audit_ptrace(struct task_struct *t)
 { }
 #define audit_n_rules 0
diff --git a/include/linux/auxvec.h b/include/linux/auxvec.h
index 3e0fbe441763..f68d0ec2d740 100644
--- a/include/linux/auxvec.h
+++ b/include/linux/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AUXVEC_H
 #define _LINUX_AUXVEC_H
 
diff --git a/include/linux/average.h b/include/linux/average.h
index 7ddaf340d2ac..a1a8f09631ce 100644
--- a/include/linux/average.h
+++ b/include/linux/average.h
@@ -1,6 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_AVERAGE_H
 #define _LINUX_AVERAGE_H
 
+#include <linux/bug.h>
+#include <linux/compiler.h>
+#include <linux/log2.h>
+
 /*
  * Exponentially weighted moving average (EWMA)
  *
@@ -48,7 +53,7 @@
 	static inline void ewma_##name##_add(struct ewma_##name *e,	\
 					     unsigned long val)		\
 	{								\
-		unsigned long internal = ACCESS_ONCE(e->internal);	\
+		unsigned long internal = READ_ONCE(e->internal);	\
 		unsigned long weight_rcp = ilog2(_weight_rcp);		\
 		unsigned long precision = _precision;			\
 									\
@@ -57,10 +62,10 @@
 		BUILD_BUG_ON((_precision) > 30);			\
 		BUILD_BUG_ON_NOT_POWER_OF_2(_weight_rcp);		\
 									\
-		ACCESS_ONCE(e->internal) = internal ?			\
+		WRITE_ONCE(e->internal, internal ?			\
 			(((internal << weight_rcp) - internal) +	\
 				(val << precision)) >> weight_rcp :	\
-			(val << precision);				\
+			(val << precision));				\
 	}
 
 #endif /* _LINUX_AVERAGE_H */
diff --git a/include/linux/backing-dev-defs.h b/include/linux/backing-dev-defs.h
index 866c433e7d32..bfe86b54f6c1 100644
--- a/include/linux/backing-dev-defs.h
+++ b/include/linux/backing-dev-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BACKING_DEV_DEFS_H
 #define __LINUX_BACKING_DEV_DEFS_H
 
@@ -24,6 +25,7 @@ enum wb_state {
 	WB_shutting_down,	/* wb_shutdown() in progress */
 	WB_writeback_running,	/* Writeback is in progress */
 	WB_has_dirty_io,	/* Dirty inodes on ->b_{dirty|io|more_io} */
+	WB_start_all,		/* nr_pages == 0 (all) work pending */
 };
 
 enum wb_congested_state {
@@ -44,6 +46,28 @@ enum wb_stat_item {
 #define WB_STAT_BATCH (8*(1+ilog2(nr_cpu_ids)))
 
 /*
+ * why some writeback work was initiated
+ */
+enum wb_reason {
+	WB_REASON_BACKGROUND,
+	WB_REASON_VMSCAN,
+	WB_REASON_SYNC,
+	WB_REASON_PERIODIC,
+	WB_REASON_LAPTOP_TIMER,
+	WB_REASON_FREE_MORE_MEM,
+	WB_REASON_FS_FREE_SPACE,
+	/*
+	 * There is no bdi forker thread any more and works are done
+	 * by emergency worker, however, this is TPs userland visible
+	 * and we'll be exposing exactly the same information,
+	 * so it has a mismatch name.
+	 */
+	WB_REASON_FORKER_THREAD,
+
+	WB_REASON_MAX,
+};
+
+/*
  * For cgroup writeback, multiple wb's may map to the same blkcg.  Those
  * wb's can operate mostly independently but should share the congested
  * state.  To facilitate such sharing, the congested state is tracked using
@@ -115,6 +139,7 @@ struct bdi_writeback {
 
 	struct fprop_local_percpu completions;
 	int dirty_exceeded;
+	enum wb_reason start_all_reason;
 
 	spinlock_t work_lock;		/* protects work_list & dwork scheduling */
 	struct list_head work_list;
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 854e1bdd0b2a..f41ca8486e02 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/backing-dev.h
  *
@@ -38,8 +39,6 @@ static inline struct backing_dev_info *bdi_alloc(gfp_t gfp_mask)
 	return bdi_alloc_node(gfp_mask, NUMA_NO_NODE);
 }
 
-void wb_start_writeback(struct bdi_writeback *wb, long nr_pages,
-			bool range_cyclic, enum wb_reason reason);
 void wb_start_background_writeback(struct bdi_writeback *wb);
 void wb_workfn(struct work_struct *work);
 void wb_wakeup_delayed(struct bdi_writeback *wb);
@@ -174,8 +173,6 @@ static inline int wb_congested(struct bdi_writeback *wb, int cong_bits)
 
 long congestion_wait(int sync, long timeout);
 long wait_iff_congested(struct pglist_data *pgdat, int sync, long timeout);
-int pdflush_proc_obsolete(struct ctl_table *table, int write,
-		void __user *buffer, size_t *lenp, loff_t *ppos);
 
 static inline bool bdi_cap_stable_pages_required(struct backing_dev_info *bdi)
 {
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 5f2fd61ef4fb..af7003548593 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Backlight Lowlevel Control Abstraction
  *
diff --git a/include/linux/badblocks.h b/include/linux/badblocks.h
index c3bdf8c59480..2426276b9bd3 100644
--- a/include/linux/badblocks.h
+++ b/include/linux/badblocks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BADBLOCKS_H
 #define _LINUX_BADBLOCKS_H
 
diff --git a/include/linux/balloon_compaction.h b/include/linux/balloon_compaction.h
index 79542b2698ec..fbbe6da40fed 100644
--- a/include/linux/balloon_compaction.h
+++ b/include/linux/balloon_compaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/balloon_compaction.h
  *
diff --git a/include/linux/bcd.h b/include/linux/bcd.h
index 18fff11fb3ea..118bea36d7d4 100644
--- a/include/linux/bcd.h
+++ b/include/linux/bcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCD_H
 #define _BCD_H
 
diff --git a/include/linux/bcm47xx_wdt.h b/include/linux/bcm47xx_wdt.h
index 8d9d07ec22a5..fc9dcdb4b979 100644
--- a/include/linux/bcm47xx_wdt.h
+++ b/include/linux/bcm47xx_wdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCM47XX_WDT_H_
 #define LINUX_BCM47XX_WDT_H_
 
diff --git a/include/linux/bcm963xx_nvram.h b/include/linux/bcm963xx_nvram.h
index 290c231b8cf1..c8c7f01159fe 100644
--- a/include/linux/bcm963xx_nvram.h
+++ b/include/linux/bcm963xx_nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BCM963XX_NVRAM_H__
 #define __LINUX_BCM963XX_NVRAM_H__
 
diff --git a/include/linux/bcm963xx_tag.h b/include/linux/bcm963xx_tag.h
index 161c7b37a77b..b87945cb6946 100644
--- a/include/linux/bcm963xx_tag.h
+++ b/include/linux/bcm963xx_tag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BCM963XX_TAG_H__
 #define __LINUX_BCM963XX_TAG_H__
 
diff --git a/include/linux/bcma/bcma.h b/include/linux/bcma/bcma.h
index 8eeedb2db924..ef61f3607e99 100644
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_H_
 #define LINUX_BCMA_H_
 
diff --git a/include/linux/bcma/bcma_driver_arm_c9.h b/include/linux/bcma/bcma_driver_arm_c9.h
index 93bd73d670d5..688cf590c99b 100644
--- a/include/linux/bcma/bcma_driver_arm_c9.h
+++ b/include/linux/bcma/bcma_driver_arm_c9.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_ARM_C9_H_
 #define LINUX_BCMA_DRIVER_ARM_C9_H_
 
diff --git a/include/linux/bcma/bcma_driver_chipcommon.h b/include/linux/bcma/bcma_driver_chipcommon.h
index 2f1c690a3e66..d35b9206096d 100644
--- a/include/linux/bcma/bcma_driver_chipcommon.h
+++ b/include/linux/bcma/bcma_driver_chipcommon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_CC_H_
 #define LINUX_BCMA_DRIVER_CC_H_
 
diff --git a/include/linux/bcma/bcma_driver_gmac_cmn.h b/include/linux/bcma/bcma_driver_gmac_cmn.h
index 4354d4ea6713..420e222d7a22 100644
--- a/include/linux/bcma/bcma_driver_gmac_cmn.h
+++ b/include/linux/bcma/bcma_driver_gmac_cmn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_GMAC_CMN_H_
 #define LINUX_BCMA_DRIVER_GMAC_CMN_H_
 
diff --git a/include/linux/bcma/bcma_driver_mips.h b/include/linux/bcma/bcma_driver_mips.h
index 8eea7f9e33b4..798013fab54f 100644
--- a/include/linux/bcma/bcma_driver_mips.h
+++ b/include/linux/bcma/bcma_driver_mips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_MIPS_H_
 #define LINUX_BCMA_DRIVER_MIPS_H_
 
diff --git a/include/linux/bcma/bcma_driver_pci.h b/include/linux/bcma/bcma_driver_pci.h
index bca6a5e4ca3d..68da8dba5162 100644
--- a/include/linux/bcma/bcma_driver_pci.h
+++ b/include/linux/bcma/bcma_driver_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_PCI_H_
 #define LINUX_BCMA_DRIVER_PCI_H_
 
diff --git a/include/linux/bcma/bcma_driver_pcie2.h b/include/linux/bcma/bcma_driver_pcie2.h
index 31e6d17ab798..91ce515e3a77 100644
--- a/include/linux/bcma/bcma_driver_pcie2.h
+++ b/include/linux/bcma/bcma_driver_pcie2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_DRIVER_PCIE2_H_
 #define LINUX_BCMA_DRIVER_PCIE2_H_
 
diff --git a/include/linux/bcma/bcma_regs.h b/include/linux/bcma/bcma_regs.h
index 9986f8288d01..944105cbd671 100644
--- a/include/linux/bcma/bcma_regs.h
+++ b/include/linux/bcma/bcma_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_REGS_H_
 #define LINUX_BCMA_REGS_H_
 
diff --git a/include/linux/bcma/bcma_soc.h b/include/linux/bcma/bcma_soc.h
index 1b5fc0c3b1b5..7cca5f859a90 100644
--- a/include/linux/bcma/bcma_soc.h
+++ b/include/linux/bcma/bcma_soc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_BCMA_SOC_H_
 #define LINUX_BCMA_SOC_H_
 
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index fb44d6180ca0..b0abe21d6cc9 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BINFMTS_H
 #define _LINUX_BINFMTS_H
 
@@ -131,7 +132,7 @@ extern int setup_arg_pages(struct linux_binprm * bprm,
 			   int executable_stack);
 extern int transfer_args_to_stack(struct linux_binprm *bprm,
 				  unsigned long *sp_location);
-extern int bprm_change_interp(char *interp, struct linux_binprm *bprm);
+extern int bprm_change_interp(const char *interp, struct linux_binprm *bprm);
 extern int copy_strings_kernel(int argc, const char *const *argv,
 			       struct linux_binprm *bprm);
 extern int prepare_bprm_creds(struct linux_binprm *bprm);
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 275c91c99516..d4eec19a6d3c 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -129,18 +129,6 @@ static inline void *bio_data(struct bio *bio)
 #define bvec_to_phys(bv)	(page_to_phys((bv)->bv_page) + (unsigned long) (bv)->bv_offset)
 
 /*
- * queues that have highmem support enabled may still need to revert to
- * PIO transfers occasionally and thus map high pages temporarily. For
- * permanent PIO fall back, user is probably better off disabling highmem
- * I/O completely on that queue (see ide-dma for example)
- */
-#define __bio_kmap_atomic(bio, iter)				\
-	(kmap_atomic(bio_iter_iovec((bio), (iter)).bv_page) +	\
-		bio_iter_iovec((bio), (iter)).bv_offset)
-
-#define __bio_kunmap_atomic(addr)	kunmap_atomic(addr)
-
-/*
  * merge helpers etc
  */
 
@@ -522,13 +510,11 @@ do {						\
 
 #ifdef CONFIG_BLK_CGROUP
 int bio_associate_blkcg(struct bio *bio, struct cgroup_subsys_state *blkcg_css);
-int bio_associate_current(struct bio *bio);
 void bio_disassociate_task(struct bio *bio);
 void bio_clone_blkcg_association(struct bio *dst, struct bio *src);
 #else	/* CONFIG_BLK_CGROUP */
 static inline int bio_associate_blkcg(struct bio *bio,
 			struct cgroup_subsys_state *blkcg_css) { return 0; }
-static inline int bio_associate_current(struct bio *bio) { return -ENOENT; }
 static inline void bio_disassociate_task(struct bio *bio) { }
 static inline void bio_clone_blkcg_association(struct bio *dst,
 			struct bio *src) { }
@@ -575,17 +561,6 @@ static inline void bvec_kunmap_irq(char *buffer, unsigned long *flags)
 }
 #endif
 
-static inline char *__bio_kmap_irq(struct bio *bio, struct bvec_iter iter,
-				   unsigned long *flags)
-{
-	return bvec_kmap_irq(&bio_iter_iovec(bio, iter), flags);
-}
-#define __bio_kunmap_irq(buf, flags)	bvec_kunmap_irq(buf, flags)
-
-#define bio_kmap_irq(bio, flags) \
-	__bio_kmap_irq((bio), (bio)->bi_iter, (flags))
-#define bio_kunmap_irq(buf,flags)	__bio_kunmap_irq(buf, flags)
-
 /*
  * BIO list management for use by remapping drivers (e.g. DM or MD) and loop.
  *
diff --git a/include/linux/bit_spinlock.h b/include/linux/bit_spinlock.h
index 3b5bafce4337..bbc4730a6505 100644
--- a/include/linux/bit_spinlock.h
+++ b/include/linux/bit_spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BIT_SPINLOCK_H
 #define __LINUX_BIT_SPINLOCK_H
 
diff --git a/include/linux/bitfield.h b/include/linux/bitfield.h
index 8b9d6fff002d..f2deb71958b2 100644
--- a/include/linux/bitfield.h
+++ b/include/linux/bitfield.h
@@ -92,7 +92,7 @@
 /**
  * FIELD_GET() - extract a bitfield element
  * @_mask: shifted mask defining the field's length and position
- * @_reg:  32bit value of entire bitfield
+ * @_reg:  value of entire bitfield
  *
  * FIELD_GET() extracts the field specified by @_mask from the
  * bitfield passed in as @_reg by masking and shifting it down.
diff --git a/include/linux/bitmap.h b/include/linux/bitmap.h
index 700cf5f67118..3489253e38fc 100644
--- a/include/linux/bitmap.h
+++ b/include/linux/bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BITMAP_H
 #define __LINUX_BITMAP_H
 
@@ -21,65 +22,74 @@
  * See lib/bitmap.c for more details.
  */
 
-/*
+/**
+ * DOC: bitmap overview
+ *
  * The available bitmap operations and their rough meaning in the
  * case that the bitmap is a single unsigned long are thus:
  *
  * Note that nbits should be always a compile time evaluable constant.
  * Otherwise many inlines will generate horrible code.
  *
- * bitmap_zero(dst, nbits)			*dst = 0UL
- * bitmap_fill(dst, nbits)			*dst = ~0UL
- * bitmap_copy(dst, src, nbits)			*dst = *src
- * bitmap_and(dst, src1, src2, nbits)		*dst = *src1 & *src2
- * bitmap_or(dst, src1, src2, nbits)		*dst = *src1 | *src2
- * bitmap_xor(dst, src1, src2, nbits)		*dst = *src1 ^ *src2
- * bitmap_andnot(dst, src1, src2, nbits)	*dst = *src1 & ~(*src2)
- * bitmap_complement(dst, src, nbits)		*dst = ~(*src)
- * bitmap_equal(src1, src2, nbits)		Are *src1 and *src2 equal?
- * bitmap_intersects(src1, src2, nbits) 	Do *src1 and *src2 overlap?
- * bitmap_subset(src1, src2, nbits)		Is *src1 a subset of *src2?
- * bitmap_empty(src, nbits)			Are all bits zero in *src?
- * bitmap_full(src, nbits)			Are all bits set in *src?
- * bitmap_weight(src, nbits)			Hamming Weight: number set bits
- * bitmap_set(dst, pos, nbits)			Set specified bit area
- * bitmap_clear(dst, pos, nbits)		Clear specified bit area
- * bitmap_find_next_zero_area(buf, len, pos, n, mask)	Find bit free area
- * bitmap_find_next_zero_area_off(buf, len, pos, n, mask)	as above
- * bitmap_shift_right(dst, src, n, nbits)	*dst = *src >> n
- * bitmap_shift_left(dst, src, n, nbits)	*dst = *src << n
- * bitmap_remap(dst, src, old, new, nbits)	*dst = map(old, new)(src)
- * bitmap_bitremap(oldbit, old, new, nbits)	newbit = map(old, new)(oldbit)
- * bitmap_onto(dst, orig, relmap, nbits)	*dst = orig relative to relmap
- * bitmap_fold(dst, orig, sz, nbits)		dst bits = orig bits mod sz
- * bitmap_parse(buf, buflen, dst, nbits)	Parse bitmap dst from kernel buf
- * bitmap_parse_user(ubuf, ulen, dst, nbits)	Parse bitmap dst from user buf
- * bitmap_parselist(buf, dst, nbits)		Parse bitmap dst from kernel buf
- * bitmap_parselist_user(buf, dst, nbits)	Parse bitmap dst from user buf
- * bitmap_find_free_region(bitmap, bits, order)	Find and allocate bit region
- * bitmap_release_region(bitmap, pos, order)	Free specified bit region
- * bitmap_allocate_region(bitmap, pos, order)	Allocate specified bit region
- * bitmap_from_u32array(dst, nbits, buf, nwords) *dst = *buf (nwords 32b words)
- * bitmap_to_u32array(buf, nwords, src, nbits)	*buf = *dst (nwords 32b words)
+ * ::
+ *
+ *  bitmap_zero(dst, nbits)                     *dst = 0UL
+ *  bitmap_fill(dst, nbits)                     *dst = ~0UL
+ *  bitmap_copy(dst, src, nbits)                *dst = *src
+ *  bitmap_and(dst, src1, src2, nbits)          *dst = *src1 & *src2
+ *  bitmap_or(dst, src1, src2, nbits)           *dst = *src1 | *src2
+ *  bitmap_xor(dst, src1, src2, nbits)          *dst = *src1 ^ *src2
+ *  bitmap_andnot(dst, src1, src2, nbits)       *dst = *src1 & ~(*src2)
+ *  bitmap_complement(dst, src, nbits)          *dst = ~(*src)
+ *  bitmap_equal(src1, src2, nbits)             Are *src1 and *src2 equal?
+ *  bitmap_intersects(src1, src2, nbits)        Do *src1 and *src2 overlap?
+ *  bitmap_subset(src1, src2, nbits)            Is *src1 a subset of *src2?
+ *  bitmap_empty(src, nbits)                    Are all bits zero in *src?
+ *  bitmap_full(src, nbits)                     Are all bits set in *src?
+ *  bitmap_weight(src, nbits)                   Hamming Weight: number set bits
+ *  bitmap_set(dst, pos, nbits)                 Set specified bit area
+ *  bitmap_clear(dst, pos, nbits)               Clear specified bit area
+ *  bitmap_find_next_zero_area(buf, len, pos, n, mask)  Find bit free area
+ *  bitmap_find_next_zero_area_off(buf, len, pos, n, mask)  as above
+ *  bitmap_shift_right(dst, src, n, nbits)      *dst = *src >> n
+ *  bitmap_shift_left(dst, src, n, nbits)       *dst = *src << n
+ *  bitmap_remap(dst, src, old, new, nbits)     *dst = map(old, new)(src)
+ *  bitmap_bitremap(oldbit, old, new, nbits)    newbit = map(old, new)(oldbit)
+ *  bitmap_onto(dst, orig, relmap, nbits)       *dst = orig relative to relmap
+ *  bitmap_fold(dst, orig, sz, nbits)           dst bits = orig bits mod sz
+ *  bitmap_parse(buf, buflen, dst, nbits)       Parse bitmap dst from kernel buf
+ *  bitmap_parse_user(ubuf, ulen, dst, nbits)   Parse bitmap dst from user buf
+ *  bitmap_parselist(buf, dst, nbits)           Parse bitmap dst from kernel buf
+ *  bitmap_parselist_user(buf, dst, nbits)      Parse bitmap dst from user buf
+ *  bitmap_find_free_region(bitmap, bits, order)  Find and allocate bit region
+ *  bitmap_release_region(bitmap, pos, order)   Free specified bit region
+ *  bitmap_allocate_region(bitmap, pos, order)  Allocate specified bit region
+ *  bitmap_from_u32array(dst, nbits, buf, nwords)  *dst = *buf (nwords 32b words)
+ *  bitmap_to_u32array(buf, nwords, src, nbits) *buf = *dst (nwords 32b words)
+ *
  */
 
-/*
- * Also the following operations in asm/bitops.h apply to bitmaps.
+/**
+ * DOC: bitmap bitops
+ *
+ * Also the following operations in asm/bitops.h apply to bitmaps.::
+ *
+ *  set_bit(bit, addr)                  *addr |= bit
+ *  clear_bit(bit, addr)                *addr &= ~bit
+ *  change_bit(bit, addr)               *addr ^= bit
+ *  test_bit(bit, addr)                 Is bit set in *addr?
+ *  test_and_set_bit(bit, addr)         Set bit and return old value
+ *  test_and_clear_bit(bit, addr)       Clear bit and return old value
+ *  test_and_change_bit(bit, addr)      Change bit and return old value
+ *  find_first_zero_bit(addr, nbits)    Position first zero bit in *addr
+ *  find_first_bit(addr, nbits)         Position first set bit in *addr
+ *  find_next_zero_bit(addr, nbits, bit)  Position next zero bit in *addr >= bit
+ *  find_next_bit(addr, nbits, bit)     Position next set bit in *addr >= bit
  *
- * set_bit(bit, addr)			*addr |= bit
- * clear_bit(bit, addr)			*addr &= ~bit
- * change_bit(bit, addr)		*addr ^= bit
- * test_bit(bit, addr)			Is bit set in *addr?
- * test_and_set_bit(bit, addr)		Set bit and return old value
- * test_and_clear_bit(bit, addr)	Clear bit and return old value
- * test_and_change_bit(bit, addr)	Change bit and return old value
- * find_first_zero_bit(addr, nbits)	Position first zero bit in *addr
- * find_first_bit(addr, nbits)		Position first set bit in *addr
- * find_next_zero_bit(addr, nbits, bit)	Position next zero bit in *addr >= bit
- * find_next_bit(addr, nbits, bit)	Position next set bit in *addr >= bit
  */
 
-/*
+/**
+ * DOC: declare bitmap
  * The DECLARE_BITMAP(name,bits) macro, in linux/types.h, can be used
  * to declare an array named 'name' of just enough unsigned longs to
  * contain all bit positions from 0 to 'bits' - 1.
@@ -360,8 +370,9 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen,
 	return __bitmap_parse(buf, buflen, 0, maskp, nmaskbits);
 }
 
-/*
+/**
  * BITMAP_FROM_U64() - Represent u64 value in the format suitable for bitmap.
+ * @n: u64 value
  *
  * Linux bitmaps are internally arrays of unsigned longs, i.e. 32-bit
  * integers in 32-bit environment, and 64-bit integers in 64-bit one.
@@ -392,14 +403,14 @@ static inline int bitmap_parse(const char *buf, unsigned int buflen,
 				((unsigned long) ((u64)(n) >> 32))
 #endif
 
-/*
+/**
  * bitmap_from_u64 - Check and swap words within u64.
  *  @mask: source bitmap
  *  @dst:  destination bitmap
  *
- * In 32-bit Big Endian kernel, when using (u32 *)(&val)[*]
+ * In 32-bit Big Endian kernel, when using ``(u32 *)(&val)[*]``
  * to read u64 mask, we will get the wrong word.
- * That is "(u32 *)(&val)[0]" gets the upper 32 bits,
+ * That is ``(u32 *)(&val)[0]`` gets the upper 32 bits,
  * but we expect the lower 32-bits of u64.
  */
 static inline void bitmap_from_u64(unsigned long *dst, u64 mask)
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 8fbe259b197c..c537ac7435ad 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BITOPS_H
 #define _LINUX_BITOPS_H
 #include <asm/types.h>
@@ -236,7 +237,7 @@ static inline unsigned long __ffs64(u64 word)
 	typeof(*ptr) old, new;					\
 								\
 	do {							\
-		old = ACCESS_ONCE(*ptr);			\
+		old = READ_ONCE(*ptr);			\
 		new = (old & ~mask) | bits;			\
 	} while (cmpxchg(ptr, old, new) != old);		\
 								\
@@ -251,7 +252,7 @@ static inline unsigned long __ffs64(u64 word)
 	typeof(*ptr) old, new;					\
 								\
 	do {							\
-		old = ACCESS_ONCE(*ptr);			\
+		old = READ_ONCE(*ptr);			\
 		new = old & ~clear;				\
 	} while (!(old & test) &&				\
 		 cmpxchg(ptr, old, new) != old);		\
diff --git a/include/linux/bitrev.h b/include/linux/bitrev.h
index b97be27e5a85..50fb0dee23e8 100644
--- a/include/linux/bitrev.h
+++ b/include/linux/bitrev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BITREV_H
 #define _LINUX_BITREV_H
 
diff --git a/include/linux/blk-cgroup.h b/include/linux/blk-cgroup.h
index 9d92153dd856..e9825ff57b15 100644
--- a/include/linux/blk-cgroup.h
+++ b/include/linux/blk-cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BLK_CGROUP_H
 #define _BLK_CGROUP_H
 /*
@@ -19,6 +20,7 @@
 #include <linux/radix-tree.h>
 #include <linux/blkdev.h>
 #include <linux/atomic.h>
+#include <linux/kthread.h>
 
 /* percpu_counter batch for blkg_[rw]stats, per-cpu drift doesn't matter */
 #define BLKG_STAT_CPU_BATCH	(INT_MAX / 2)
@@ -223,22 +225,16 @@ static inline struct blkcg *css_to_blkcg(struct cgroup_subsys_state *css)
 	return css ? container_of(css, struct blkcg, css) : NULL;
 }
 
-static inline struct blkcg *task_blkcg(struct task_struct *tsk)
-{
-	return css_to_blkcg(task_css(tsk, io_cgrp_id));
-}
-
 static inline struct blkcg *bio_blkcg(struct bio *bio)
 {
+	struct cgroup_subsys_state *css;
+
 	if (bio && bio->bi_css)
 		return css_to_blkcg(bio->bi_css);
-	return task_blkcg(current);
-}
-
-static inline struct cgroup_subsys_state *
-task_get_blkcg_css(struct task_struct *task)
-{
-	return task_get_css(task, io_cgrp_id);
+	css = kthread_blkcg();
+	if (css)
+		return css_to_blkcg(css);
+	return css_to_blkcg(task_css(current, io_cgrp_id));
 }
 
 /**
@@ -735,12 +731,6 @@ struct blkcg_policy {
 
 #define blkcg_root_css	((struct cgroup_subsys_state *)ERR_PTR(-EINVAL))
 
-static inline struct cgroup_subsys_state *
-task_get_blkcg_css(struct task_struct *task)
-{
-	return NULL;
-}
-
 #ifdef CONFIG_BLOCK
 
 static inline struct blkcg_gq *blkg_lookup(struct blkcg *blkcg, void *key) { return NULL; }
diff --git a/include/linux/blk-mq-pci.h b/include/linux/blk-mq-pci.h
index 6ab595259112..6338551e0fb9 100644
--- a/include/linux/blk-mq-pci.h
+++ b/include/linux/blk-mq-pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLK_MQ_PCI_H
 #define _LINUX_BLK_MQ_PCI_H
 
diff --git a/include/linux/blk-mq-virtio.h b/include/linux/blk-mq-virtio.h
index b1ef6e14744f..69b4da262c45 100644
--- a/include/linux/blk-mq-virtio.h
+++ b/include/linux/blk-mq-virtio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLK_MQ_VIRTIO_H
 #define _LINUX_BLK_MQ_VIRTIO_H
 
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 50c6485cb04f..95c9a5c862e2 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLK_MQ_H
 #define BLK_MQ_H
 
@@ -30,10 +31,12 @@ struct blk_mq_hw_ctx {
 
 	struct sbitmap		ctx_map;
 
+	struct blk_mq_ctx	*dispatch_from;
+
 	struct blk_mq_ctx	**ctxs;
 	unsigned int		nr_ctx;
 
-	wait_queue_entry_t		dispatch_wait;
+	wait_queue_entry_t	dispatch_wait;
 	atomic_t		wait_index;
 
 	struct blk_mq_tags	*tags;
@@ -90,6 +93,8 @@ struct blk_mq_queue_data {
 
 typedef blk_status_t (queue_rq_fn)(struct blk_mq_hw_ctx *,
 		const struct blk_mq_queue_data *);
+typedef bool (get_budget_fn)(struct blk_mq_hw_ctx *);
+typedef void (put_budget_fn)(struct blk_mq_hw_ctx *);
 typedef enum blk_eh_timer_return (timeout_fn)(struct request *, bool);
 typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
 typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
@@ -112,6 +117,15 @@ struct blk_mq_ops {
 	queue_rq_fn		*queue_rq;
 
 	/*
+	 * Reserve budget before queue request, once .queue_rq is
+	 * run, it is driver's responsibility to release the
+	 * reserved budget. Also we have to handle failure case
+	 * of .get_budget for avoiding I/O deadlock.
+	 */
+	get_budget_fn		*get_budget;
+	put_budget_fn		*put_budget;
+
+	/*
 	 * Called on request timeout
 	 */
 	timeout_fn		*timeout;
@@ -168,8 +182,7 @@ enum {
 	BLK_MQ_S_STOPPED	= 0,
 	BLK_MQ_S_TAG_ACTIVE	= 1,
 	BLK_MQ_S_SCHED_RESTART	= 2,
-	BLK_MQ_S_TAG_WAITING	= 3,
-	BLK_MQ_S_START_ON_RUN	= 4,
+	BLK_MQ_S_START_ON_RUN	= 3,
 
 	BLK_MQ_MAX_DEPTH	= 10240,
 
@@ -197,15 +210,21 @@ void blk_mq_free_request(struct request *rq);
 bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
 
 enum {
-	BLK_MQ_REQ_NOWAIT	= (1 << 0), /* return when out of requests */
-	BLK_MQ_REQ_RESERVED	= (1 << 1), /* allocate from reserved pool */
-	BLK_MQ_REQ_INTERNAL	= (1 << 2), /* allocate internal/sched tag */
+	/* return when out of requests */
+	BLK_MQ_REQ_NOWAIT	= (__force blk_mq_req_flags_t)(1 << 0),
+	/* allocate from reserved pool */
+	BLK_MQ_REQ_RESERVED	= (__force blk_mq_req_flags_t)(1 << 1),
+	/* allocate internal/sched tag */
+	BLK_MQ_REQ_INTERNAL	= (__force blk_mq_req_flags_t)(1 << 2),
+	/* set RQF_PREEMPT */
+	BLK_MQ_REQ_PREEMPT	= (__force blk_mq_req_flags_t)(1 << 3),
 };
 
 struct request *blk_mq_alloc_request(struct request_queue *q, unsigned int op,
-		unsigned int flags);
+		blk_mq_req_flags_t flags);
 struct request *blk_mq_alloc_request_hctx(struct request_queue *q,
-		unsigned int op, unsigned int flags, unsigned int hctx_idx);
+		unsigned int op, blk_mq_req_flags_t flags,
+		unsigned int hctx_idx);
 struct request *blk_mq_tag_to_rq(struct blk_mq_tags *tags, unsigned int tag);
 
 enum {
@@ -248,7 +267,7 @@ void blk_mq_start_stopped_hw_queues(struct request_queue *q, bool async);
 void blk_mq_quiesce_queue(struct request_queue *q);
 void blk_mq_unquiesce_queue(struct request_queue *q);
 void blk_mq_delay_run_hw_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs);
-void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
+bool blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
 void blk_mq_run_hw_queues(struct request_queue *q, bool async);
 void blk_mq_delay_queue(struct blk_mq_hw_ctx *hctx, unsigned long msecs);
 void blk_mq_tagset_busy_iter(struct blk_mq_tag_set *tagset,
@@ -259,8 +278,8 @@ void blk_freeze_queue_start(struct request_queue *q);
 void blk_mq_freeze_queue_wait(struct request_queue *q);
 int blk_mq_freeze_queue_wait_timeout(struct request_queue *q,
 				     unsigned long timeout);
-int blk_mq_reinit_tagset(struct blk_mq_tag_set *set,
-			 int (reinit_request)(void *, struct request *));
+int blk_mq_tagset_iter(struct blk_mq_tag_set *set, void *data,
+		int (reinit_request)(void *, struct request *));
 
 int blk_mq_map_queues(struct blk_mq_tag_set *set);
 void blk_mq_update_nr_hw_queues(struct blk_mq_tag_set *set, int nr_hw_queues);
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index a2d2aa709cef..a1e628e032da 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Block data types and constants.  Directly include this file only to
  * break include dependency loop.
@@ -162,6 +163,8 @@ struct bio {
  */
 #define BIO_RESET_BITS	BVEC_POOL_OFFSET
 
+typedef __u32 __bitwise blk_mq_req_flags_t;
+
 /*
  * Operations and flags common to the bio and request structures.
  * We use 8 bits for encoding the operation, and the remaining 24 for flags.
@@ -224,11 +227,14 @@ enum req_flag_bits {
 	__REQ_PREFLUSH,		/* request for cache flush */
 	__REQ_RAHEAD,		/* read ahead, can fail anytime */
 	__REQ_BACKGROUND,	/* background IO */
+	__REQ_NOWAIT,           /* Don't wait if request will block */
 
 	/* command specific flags for REQ_OP_WRITE_ZEROES: */
 	__REQ_NOUNMAP,		/* do not free blocks when zeroing */
 
-	__REQ_NOWAIT,           /* Don't wait if request will block */
+	/* for driver use */
+	__REQ_DRV,
+
 	__REQ_NR_BITS,		/* stops here */
 };
 
@@ -245,9 +251,11 @@ enum req_flag_bits {
 #define REQ_PREFLUSH		(1ULL << __REQ_PREFLUSH)
 #define REQ_RAHEAD		(1ULL << __REQ_RAHEAD)
 #define REQ_BACKGROUND		(1ULL << __REQ_BACKGROUND)
+#define REQ_NOWAIT		(1ULL << __REQ_NOWAIT)
 
 #define REQ_NOUNMAP		(1ULL << __REQ_NOUNMAP)
-#define REQ_NOWAIT		(1ULL << __REQ_NOWAIT)
+
+#define REQ_DRV			(1ULL << __REQ_DRV)
 
 #define REQ_FAILFAST_MASK \
 	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
@@ -329,11 +337,10 @@ static inline bool blk_qc_t_is_internal(blk_qc_t cookie)
 }
 
 struct blk_rq_stat {
-	s64 mean;
+	u64 mean;
 	u64 min;
 	u64 max;
-	s32 nr_samples;
-	s32 nr_batch;
+	u32 nr_samples;
 	u64 batch;
 };
 
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 460294bb0fa5..8089ca17db9a 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLKDEV_H
 #define _LINUX_BLKDEV_H
 
@@ -266,6 +267,7 @@ struct blk_queue_ctx;
 
 typedef void (request_fn_proc) (struct request_queue *q);
 typedef blk_qc_t (make_request_fn) (struct request_queue *q, struct bio *bio);
+typedef bool (poll_q_fn) (struct request_queue *q, blk_qc_t);
 typedef int (prep_rq_fn) (struct request_queue *, struct request *);
 typedef void (unprep_rq_fn) (struct request_queue *, struct request *);
 
@@ -408,6 +410,7 @@ struct request_queue {
 
 	request_fn_proc		*request_fn;
 	make_request_fn		*make_request_fn;
+	poll_q_fn		*poll_fn;
 	prep_rq_fn		*prep_rq_fn;
 	unprep_rq_fn		*unprep_rq_fn;
 	softirq_done_fn		*softirq_done_fn;
@@ -551,6 +554,7 @@ struct request_queue {
 	int			node;
 #ifdef CONFIG_BLK_DEV_IO_TRACE
 	struct blk_trace	*blk_trace;
+	struct mutex		blk_trace_mutex;
 #endif
 	/*
 	 * for flush operations
@@ -608,7 +612,6 @@ struct request_queue {
 #define QUEUE_FLAG_NOMERGES     5	/* disable merge attempts */
 #define QUEUE_FLAG_SAME_COMP	6	/* complete on same CPU-group */
 #define QUEUE_FLAG_FAIL_IO	7	/* fake timeout */
-#define QUEUE_FLAG_STACKABLE	8	/* supports request stacking */
 #define QUEUE_FLAG_NONROT	9	/* non-rotational device (SSD) */
 #define QUEUE_FLAG_VIRT        QUEUE_FLAG_NONROT /* paravirt device */
 #define QUEUE_FLAG_IO_STAT     10	/* do IO stats */
@@ -630,14 +633,13 @@ struct request_queue {
 #define QUEUE_FLAG_REGISTERED  26	/* queue has been registered to a disk */
 #define QUEUE_FLAG_SCSI_PASSTHROUGH 27	/* queue supports SCSI commands */
 #define QUEUE_FLAG_QUIESCED    28	/* queue has been quiesced */
+#define QUEUE_FLAG_PREEMPT_ONLY	29	/* only process REQ_PREEMPT requests */
 
 #define QUEUE_FLAG_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
-				 (1 << QUEUE_FLAG_STACKABLE)	|	\
 				 (1 << QUEUE_FLAG_SAME_COMP)	|	\
 				 (1 << QUEUE_FLAG_ADD_RANDOM))
 
 #define QUEUE_FLAG_MQ_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
-				 (1 << QUEUE_FLAG_STACKABLE)	|	\
 				 (1 << QUEUE_FLAG_SAME_COMP)	|	\
 				 (1 << QUEUE_FLAG_POLL))
 
@@ -721,8 +723,6 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
 #define blk_queue_nonrot(q)	test_bit(QUEUE_FLAG_NONROT, &(q)->queue_flags)
 #define blk_queue_io_stat(q)	test_bit(QUEUE_FLAG_IO_STAT, &(q)->queue_flags)
 #define blk_queue_add_random(q)	test_bit(QUEUE_FLAG_ADD_RANDOM, &(q)->queue_flags)
-#define blk_queue_stackable(q)	\
-	test_bit(QUEUE_FLAG_STACKABLE, &(q)->queue_flags)
 #define blk_queue_discard(q)	test_bit(QUEUE_FLAG_DISCARD, &(q)->queue_flags)
 #define blk_queue_secure_erase(q) \
 	(test_bit(QUEUE_FLAG_SECERASE, &(q)->queue_flags))
@@ -734,6 +734,11 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
 	((rq)->cmd_flags & (REQ_FAILFAST_DEV|REQ_FAILFAST_TRANSPORT| \
 			     REQ_FAILFAST_DRIVER))
 #define blk_queue_quiesced(q)	test_bit(QUEUE_FLAG_QUIESCED, &(q)->queue_flags)
+#define blk_queue_preempt_only(q)				\
+	test_bit(QUEUE_FLAG_PREEMPT_ONLY, &(q)->queue_flags)
+
+extern int blk_set_preempt_only(struct request_queue *q);
+extern void blk_clear_preempt_only(struct request_queue *q);
 
 static inline bool blk_account_rq(struct request *rq)
 {
@@ -921,24 +926,17 @@ static inline void rq_flush_dcache_pages(struct request *rq)
 }
 #endif
 
-#ifdef CONFIG_PRINTK
-#define vfs_msg(sb, level, fmt, ...)				\
-	__vfs_msg(sb, level, fmt, ##__VA_ARGS__)
-#else
-#define vfs_msg(sb, level, fmt, ...)				\
-do {								\
-	no_printk(fmt, ##__VA_ARGS__);				\
-	__vfs_msg(sb, "", " ");					\
-} while (0)
-#endif
-
 extern int blk_register_queue(struct gendisk *disk);
 extern void blk_unregister_queue(struct gendisk *disk);
 extern blk_qc_t generic_make_request(struct bio *bio);
+extern blk_qc_t direct_make_request(struct bio *bio);
 extern void blk_rq_init(struct request_queue *q, struct request *rq);
 extern void blk_init_request_from_bio(struct request *req, struct bio *bio);
 extern void blk_put_request(struct request *);
 extern void __blk_put_request(struct request_queue *, struct request *);
+extern struct request *blk_get_request_flags(struct request_queue *,
+					     unsigned int op,
+					     blk_mq_req_flags_t flags);
 extern struct request *blk_get_request(struct request_queue *, unsigned int op,
 				       gfp_t gfp_mask);
 extern void blk_requeue_request(struct request_queue *, struct request *);
@@ -962,7 +960,7 @@ extern int scsi_cmd_ioctl(struct request_queue *, struct gendisk *, fmode_t,
 extern int sg_scsi_ioctl(struct request_queue *, struct gendisk *, fmode_t,
 			 struct scsi_ioctl_command __user *);
 
-extern int blk_queue_enter(struct request_queue *q, bool nowait);
+extern int blk_queue_enter(struct request_queue *q, blk_mq_req_flags_t flags);
 extern void blk_queue_exit(struct request_queue *q);
 extern void blk_start_queue(struct request_queue *q);
 extern void blk_start_queue_async(struct request_queue *q);
@@ -989,7 +987,7 @@ extern void blk_execute_rq_nowait(struct request_queue *, struct gendisk *,
 int blk_status_to_errno(blk_status_t status);
 blk_status_t errno_to_blk_status(int errno);
 
-bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie);
+bool blk_poll(struct request_queue *q, blk_qc_t cookie);
 
 static inline struct request_queue *bdev_get_queue(struct block_device *bdev)
 {
@@ -1108,6 +1106,8 @@ extern struct request *blk_peek_request(struct request_queue *q);
 extern void blk_start_request(struct request *rq);
 extern struct request *blk_fetch_request(struct request_queue *q);
 
+void blk_steal_bios(struct bio_list *list, struct request *rq);
+
 /*
  * Request completion related functions.
  *
@@ -1370,7 +1370,7 @@ static inline int sb_issue_zeroout(struct super_block *sb, sector_t block,
 				    gfp_mask, 0);
 }
 
-extern int blk_verify_command(unsigned char *cmd, fmode_t has_write_perm);
+extern int blk_verify_command(unsigned char *cmd, fmode_t mode);
 
 enum blk_default_limits {
 	BLK_MAX_SEGMENTS	= 128,
diff --git a/include/linux/blkpg.h b/include/linux/blkpg.h
index bef124fde61e..1c91753c3c28 100644
--- a/include/linux/blkpg.h
+++ b/include/linux/blkpg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLKPG_H
 #define _LINUX_BLKPG_H
 
diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 67b4d4dfc19c..8804753805ac 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BLKTRACE_H
 #define BLKTRACE_H
 
diff --git a/include/linux/blockgroup_lock.h b/include/linux/blockgroup_lock.h
index 225bdb7daec7..511ab123a822 100644
--- a/include/linux/blockgroup_lock.h
+++ b/include/linux/blockgroup_lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BLOCKGROUP_LOCK_H
 #define _LINUX_BLOCKGROUP_LOCK_H
 /*
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index e223d91b6439..fdf40ca04b3c 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Discontiguous memory support, Kanoj Sarcar, SGI, Nov 1999
  */
diff --git a/include/linux/bottom_half.h b/include/linux/bottom_half.h
index 8fdcb783197d..a19519f4241d 100644
--- a/include/linux/bottom_half.h
+++ b/include/linux/bottom_half.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BH_H
 #define _LINUX_BH_H
 
diff --git a/include/linux/bpf-cgroup.h b/include/linux/bpf-cgroup.h
index d41d40ac3efd..44dfae288fcf 100644
--- a/include/linux/bpf-cgroup.h
+++ b/include/linux/bpf-cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BPF_CGROUP_H
 #define _BPF_CGROUP_H
 
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 8390859e79e7..f1af7d63d678 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -368,6 +368,11 @@ static inline void __bpf_prog_uncharge(struct user_struct *user, u32 pages)
 {
 }
 
+static inline int bpf_obj_get_user(const char __user *pathname)
+{
+	return -EOPNOTSUPP;
+}
+
 static inline struct net_device  *__dev_map_lookup_elem(struct bpf_map *map,
 						       u32 key)
 {
diff --git a/include/linux/bpf_trace.h b/include/linux/bpf_trace.h
index b22efbdd2eb4..e6fe98ae3794 100644
--- a/include/linux/bpf_trace.h
+++ b/include/linux/bpf_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BPF_TRACE_H__
 #define __LINUX_BPF_TRACE_H__
 
diff --git a/include/linux/bpf_types.h b/include/linux/bpf_types.h
index 6f1a567667b8..e1149327a0c0 100644
--- a/include/linux/bpf_types.h
+++ b/include/linux/bpf_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* internal file - do not include directly */
 
 #ifdef CONFIG_NET
diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h
index abcda9b458ab..4f087f86a741 100644
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BRCMPHY_H
 #define _LINUX_BRCMPHY_H
 
diff --git a/include/linux/bsearch.h b/include/linux/bsearch.h
index 90b1aa867224..62b1eb348858 100644
--- a/include/linux/bsearch.h
+++ b/include/linux/bsearch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BSEARCH_H
 #define _LINUX_BSEARCH_H
 
diff --git a/include/linux/bsg.h b/include/linux/bsg.h
index 7173f6e9d2dd..2a202e41a3af 100644
--- a/include/linux/bsg.h
+++ b/include/linux/bsg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BSG_H
 #define BSG_H
 
diff --git a/include/linux/btree-128.h b/include/linux/btree-128.h
index 0b3414c4c928..22c09f5c3c39 100644
--- a/include/linux/btree-128.h
+++ b/include/linux/btree-128.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 extern struct btree_geo btree_geo128;
 
 struct btree_head128 { struct btree_head h; };
diff --git a/include/linux/btree-type.h b/include/linux/btree-type.h
index 9a1147ef8563..fb34a52c788b 100644
--- a/include/linux/btree-type.h
+++ b/include/linux/btree-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define __BTREE_TP(pfx, type, sfx)	pfx ## type ## sfx
 #define _BTREE_TP(pfx, type, sfx)	__BTREE_TP(pfx, type, sfx)
 #define BTREE_TP(pfx)			_BTREE_TP(pfx, BTREE_TYPE_SUFFIX,)
diff --git a/include/linux/btree.h b/include/linux/btree.h
index 65b5bb058324..68f858c831b1 100644
--- a/include/linux/btree.h
+++ b/include/linux/btree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BTREE_H
 #define BTREE_H
 
diff --git a/include/linux/btrfs.h b/include/linux/btrfs.h
index 22d799147db2..9a37a45ec801 100644
--- a/include/linux/btrfs.h
+++ b/include/linux/btrfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BTRFS_H
 #define _LINUX_BTRFS_H
 
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index c8dae555eccf..8b1bf8d3d4a2 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/buffer_head.h
  *
@@ -156,7 +157,7 @@ void set_bh_page(struct buffer_head *bh,
 		struct page *page, unsigned long offset);
 int try_to_free_buffers(struct page *);
 struct buffer_head *alloc_page_buffers(struct page *page, unsigned long size,
-		int retry);
+		bool retry);
 void create_empty_buffers(struct page *, unsigned long,
 			unsigned long b_state);
 void end_buffer_read_sync(struct buffer_head *bh, int uptodate);
@@ -232,6 +233,7 @@ int generic_write_end(struct file *, struct address_space *,
 				loff_t, unsigned, unsigned,
 				struct page *, void *);
 void page_zero_new_buffers(struct page *page, unsigned from, unsigned to);
+void clean_page_buffers(struct page *page);
 int cont_write_begin(struct file *, struct address_space *, loff_t,
 			unsigned, unsigned, struct page **, void **,
 			get_block_t *, loff_t *);
diff --git a/include/linux/bug.h b/include/linux/bug.h
index 5d5554c874fd..da4231c905c8 100644
--- a/include/linux/bug.h
+++ b/include/linux/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BUG_H
 #define _LINUX_BUG_H
 
diff --git a/include/linux/build_bug.h b/include/linux/build_bug.h
index b7d22d60008a..3efed0d742a0 100644
--- a/include/linux/build_bug.h
+++ b/include/linux/build_bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BUILD_BUG_H
 #define _LINUX_BUILD_BUG_H
 
diff --git a/include/linux/byteorder/big_endian.h b/include/linux/byteorder/big_endian.h
index ffd215988392..d64a524d3cfb 100644
--- a/include/linux/byteorder/big_endian.h
+++ b/include/linux/byteorder/big_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BYTEORDER_BIG_ENDIAN_H
 #define _LINUX_BYTEORDER_BIG_ENDIAN_H
 
diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h
index 89f67c1c3160..133b76d0d2c0 100644
--- a/include/linux/byteorder/generic.h
+++ b/include/linux/byteorder/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BYTEORDER_GENERIC_H
 #define _LINUX_BYTEORDER_GENERIC_H
 
diff --git a/include/linux/byteorder/little_endian.h b/include/linux/byteorder/little_endian.h
index ba910bb9aad0..1ec650ff76cb 100644
--- a/include/linux/byteorder/little_endian.h
+++ b/include/linux/byteorder/little_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_BYTEORDER_LITTLE_ENDIAN_H
 #define _LINUX_BYTEORDER_LITTLE_ENDIAN_H
 
diff --git a/include/linux/cache.h b/include/linux/cache.h
index 1be04f8c563a..750621e41d1c 100644
--- a/include/linux/cache.h
+++ b/include/linux/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CACHE_H
 #define __LINUX_CACHE_H
 
diff --git a/include/linux/cacheinfo.h b/include/linux/cacheinfo.h
index 6a524bf6a06d..3d9805297cda 100644
--- a/include/linux/cacheinfo.h
+++ b/include/linux/cacheinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CACHEINFO_H
 #define _LINUX_CACHEINFO_H
 
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index c9a17bb1221c..6099bc18bd0c 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/can/core.h
  *
diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 141b05aade81..61f1cf2d9f44 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/can/dev.h
  *
diff --git a/include/linux/can/platform/cc770.h b/include/linux/can/platform/cc770.h
index 78b2d44f04cf..9587d6882906 100644
--- a/include/linux/can/platform/cc770.h
+++ b/include/linux/can/platform/cc770.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_CC770_H
 #define _CAN_PLATFORM_CC770_H
 
diff --git a/include/linux/can/platform/mcp251x.h b/include/linux/can/platform/mcp251x.h
index d44fcae274ff..9e5ac27fb6c1 100644
--- a/include/linux/can/platform/mcp251x.h
+++ b/include/linux/can/platform/mcp251x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_MCP251X_H
 #define _CAN_PLATFORM_MCP251X_H
 
diff --git a/include/linux/can/platform/rcar_can.h b/include/linux/can/platform/rcar_can.h
index 0f4a2f3df504..a43dcd0cf79e 100644
--- a/include/linux/can/platform/rcar_can.h
+++ b/include/linux/can/platform/rcar_can.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_RCAR_CAN_H_
 #define _CAN_PLATFORM_RCAR_CAN_H_
 
diff --git a/include/linux/can/platform/sja1000.h b/include/linux/can/platform/sja1000.h
index 93570b61ec6c..5755ae5a4712 100644
--- a/include/linux/can/platform/sja1000.h
+++ b/include/linux/can/platform/sja1000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CAN_PLATFORM_SJA1000_H
 #define _CAN_PLATFORM_SJA1000_H
 
diff --git a/include/linux/can/skb.h b/include/linux/can/skb.h
index 51bb6532785c..b3379a97245c 100644
--- a/include/linux/can/skb.h
+++ b/include/linux/can/skb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/can/skb.h
  *
diff --git a/include/linux/capability.h b/include/linux/capability.h
index b52e278e4744..f640dcbc880c 100644
--- a/include/linux/capability.h
+++ b/include/linux/capability.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is <linux/capability.h>
  *
diff --git a/include/linux/cciss_ioctl.h b/include/linux/cciss_ioctl.h
index 84b6e2d0f44d..1d5229200a71 100644
--- a/include/linux/cciss_ioctl.h
+++ b/include/linux/cciss_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CCISS_IOCTLH
 #define CCISS_IOCTLH
 
diff --git a/include/linux/cdev.h b/include/linux/cdev.h
index cb28eb21e3ca..0e8cd6293deb 100644
--- a/include/linux/cdev.h
+++ b/include/linux/cdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CDEV_H
 #define _LINUX_CDEV_H
 
diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
index 6e8f209a6dff..e75dfd1f1dec 100644
--- a/include/linux/cdrom.h
+++ b/include/linux/cdrom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * -- <linux/cdrom.h>
  * General header file for linux CD-ROM drivers 
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index a6747789fe5c..e931da8424a4 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_AUTH_H
 #define _FS_CEPH_AUTH_H
 
diff --git a/include/linux/ceph/buffer.h b/include/linux/ceph/buffer.h
index 07ca15e76100..5e58bb29b1a3 100644
--- a/include/linux/ceph/buffer.h
+++ b/include/linux/ceph/buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_BUFFER_H
 #define __FS_CEPH_BUFFER_H
 
diff --git a/include/linux/ceph/ceph_debug.h b/include/linux/ceph/ceph_debug.h
index 51c5bd64bd00..d5a5da838caf 100644
--- a/include/linux/ceph/ceph_debug.h
+++ b/include/linux/ceph/ceph_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_DEBUG_H
 #define _FS_CEPH_DEBUG_H
 
diff --git a/include/linux/ceph/ceph_features.h b/include/linux/ceph/ceph_features.h
index 040dd105c3e7..59042d5ac520 100644
--- a/include/linux/ceph/ceph_features.h
+++ b/include/linux/ceph/ceph_features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CEPH_FEATURES
 #define __CEPH_FEATURES
 
diff --git a/include/linux/ceph/ceph_frag.h b/include/linux/ceph/ceph_frag.h
index 146507df8650..97bab0adc58a 100644
--- a/include/linux/ceph/ceph_frag.h
+++ b/include/linux/ceph/ceph_frag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_CEPH_FRAG_H
 #define FS_CEPH_FRAG_H
 
diff --git a/include/linux/ceph/ceph_fs.h b/include/linux/ceph/ceph_fs.h
index b422170b791a..88dd51381aaf 100644
--- a/include/linux/ceph/ceph_fs.h
+++ b/include/linux/ceph/ceph_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ceph_fs.h - Ceph constants and data types to share between kernel and
  * user space.
diff --git a/include/linux/ceph/ceph_hash.h b/include/linux/ceph/ceph_hash.h
index d099c3f90236..fda474c7a5d6 100644
--- a/include/linux/ceph/ceph_hash.h
+++ b/include/linux/ceph/ceph_hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FS_CEPH_HASH_H
 #define FS_CEPH_HASH_H
 
diff --git a/include/linux/ceph/cls_lock_client.h b/include/linux/ceph/cls_lock_client.h
index 0594d3bba774..bea6c77d2093 100644
--- a/include/linux/ceph/cls_lock_client.h
+++ b/include/linux/ceph/cls_lock_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CEPH_CLS_LOCK_CLIENT_H
 #define _LINUX_CEPH_CLS_LOCK_CLIENT_H
 
diff --git a/include/linux/ceph/debugfs.h b/include/linux/ceph/debugfs.h
index 29cf897cc5cd..fa5f9b7f5dbb 100644
--- a/include/linux/ceph/debugfs.h
+++ b/include/linux/ceph/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_DEBUGFS_H
 #define _FS_CEPH_DEBUGFS_H
 
diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h
index 14af9b70d301..d143ac8879c6 100644
--- a/include/linux/ceph/decode.h
+++ b/include/linux/ceph/decode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CEPH_DECODE_H
 #define __CEPH_DECODE_H
 
diff --git a/include/linux/ceph/libceph.h b/include/linux/ceph/libceph.h
index 4c846aabd9f6..c2ec44cf5098 100644
--- a/include/linux/ceph/libceph.h
+++ b/include/linux/ceph/libceph.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_LIBCEPH_H
 #define _FS_CEPH_LIBCEPH_H
 
diff --git a/include/linux/ceph/mdsmap.h b/include/linux/ceph/mdsmap.h
index d5f783f3226a..0067d767c9ae 100644
--- a/include/linux/ceph/mdsmap.h
+++ b/include/linux/ceph/mdsmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MDSMAP_H
 #define _FS_CEPH_MDSMAP_H
 
diff --git a/include/linux/ceph/messenger.h b/include/linux/ceph/messenger.h
index fbd94d9fa5dd..ead9d85f1c11 100644
--- a/include/linux/ceph/messenger.h
+++ b/include/linux/ceph/messenger.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_MESSENGER_H
 #define __FS_CEPH_MESSENGER_H
 
diff --git a/include/linux/ceph/mon_client.h b/include/linux/ceph/mon_client.h
index 0fa990bf867a..3a4688af7455 100644
--- a/include/linux/ceph/mon_client.h
+++ b/include/linux/ceph/mon_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MON_CLIENT_H
 #define _FS_CEPH_MON_CLIENT_H
 
diff --git a/include/linux/ceph/msgpool.h b/include/linux/ceph/msgpool.h
index ddd0d48d0384..76c98a512758 100644
--- a/include/linux/ceph/msgpool.h
+++ b/include/linux/ceph/msgpool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_MSGPOOL
 #define _FS_CEPH_MSGPOOL
 
diff --git a/include/linux/ceph/msgr.h b/include/linux/ceph/msgr.h
index 0fe2656ac415..73ae2a926548 100644
--- a/include/linux/ceph/msgr.h
+++ b/include/linux/ceph/msgr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_MSGR_H
 #define CEPH_MSGR_H
 
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h
index adf670ecaf94..52fb37d1c2a5 100644
--- a/include/linux/ceph/osd_client.h
+++ b/include/linux/ceph/osd_client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_OSD_CLIENT_H
 #define _FS_CEPH_OSD_CLIENT_H
 
diff --git a/include/linux/ceph/osdmap.h b/include/linux/ceph/osdmap.h
index af3444a5bfdd..d41fad99c0fa 100644
--- a/include/linux/ceph/osdmap.h
+++ b/include/linux/ceph/osdmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_OSDMAP_H
 #define _FS_CEPH_OSDMAP_H
 
diff --git a/include/linux/ceph/pagelist.h b/include/linux/ceph/pagelist.h
index 75a7db21457d..7edcded07641 100644
--- a/include/linux/ceph/pagelist.h
+++ b/include/linux/ceph/pagelist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_PAGELIST_H
 #define __FS_CEPH_PAGELIST_H
 
diff --git a/include/linux/ceph/rados.h b/include/linux/ceph/rados.h
index 01408841c9c4..f1988387c5ad 100644
--- a/include/linux/ceph/rados.h
+++ b/include/linux/ceph/rados.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_RADOS_H
 #define CEPH_RADOS_H
 
diff --git a/include/linux/ceph/string_table.h b/include/linux/ceph/string_table.h
index 1b02c96daf75..a4a9962d1e14 100644
--- a/include/linux/ceph/string_table.h
+++ b/include/linux/ceph/string_table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_STRING_TABLE_H
 #define _FS_CEPH_STRING_TABLE_H
 
diff --git a/include/linux/ceph/types.h b/include/linux/ceph/types.h
index d3ff1cf2d27e..27cd973d3881 100644
--- a/include/linux/ceph/types.h
+++ b/include/linux/ceph/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_TYPES_H
 #define _FS_CEPH_TYPES_H
 
diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index ade4a78a54c2..1dff0a478b45 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/cgroup-defs.h - basic definitions for cgroup
  *
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index d023ac5e377f..dddbc29e2009 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CGROUP_H
 #define _LINUX_CGROUP_H
 /*
diff --git a/include/linux/cgroup_subsys.h b/include/linux/cgroup_subsys.h
index d0e597c44585..acb77dcff3b4 100644
--- a/include/linux/cgroup_subsys.h
+++ b/include/linux/cgroup_subsys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * List of cgroup subsystems.
  *
diff --git a/include/linux/circ_buf.h b/include/linux/circ_buf.h
index 90f2471dc6f2..7cf262a421c3 100644
--- a/include/linux/circ_buf.h
+++ b/include/linux/circ_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * See Documentation/circular-buffers.txt for more information.
  */
diff --git a/include/linux/cleancache.h b/include/linux/cleancache.h
index bbb3712dd892..5f5730c1d324 100644
--- a/include/linux/cleancache.h
+++ b/include/linux/cleancache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CLEANCACHE_H
 #define _LINUX_CLEANCACHE_H
 
diff --git a/include/linux/clk/mmp.h b/include/linux/clk/mmp.h
index 607321fa2c2b..445130460380 100644
--- a/include/linux/clk/mmp.h
+++ b/include/linux/clk/mmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CLK_MMP_H
 #define __CLK_MMP_H
 
diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index a116926598fd..8ae9a95ebf5b 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  linux/include/linux/clockchips.h
  *
  *  This file contains the structure definitions for clockchips.
diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index a78cb1848e65..7dff1963c185 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  linux/include/linux/clocksource.h
  *
  *  This file contains the structure definitions for clocksources.
diff --git a/include/linux/cm4000_cs.h b/include/linux/cm4000_cs.h
index 88bee3a33090..ea4958e07a14 100644
--- a/include/linux/cm4000_cs.h
+++ b/include/linux/cm4000_cs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	_CM4000_H_
 #define	_CM4000_H_
 
diff --git a/include/linux/cma.h b/include/linux/cma.h
index 3e8fbf5a5c73..bf90f0bb42bd 100644
--- a/include/linux/cma.h
+++ b/include/linux/cma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CMA_H__
 #define __CMA_H__
 
diff --git a/include/linux/cmdline-parser.h b/include/linux/cmdline-parser.h
index 2e6dce6e5c2a..68a541807bdf 100644
--- a/include/linux/cmdline-parser.h
+++ b/include/linux/cmdline-parser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Parsing command line, get the partitions information.
  *
diff --git a/include/linux/coda_psdev.h b/include/linux/coda_psdev.h
index 31e4e1f1547c..15170954aa2b 100644
--- a/include/linux/coda_psdev.h
+++ b/include/linux/coda_psdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CODA_PSDEV_H
 #define __CODA_PSDEV_H
 
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index 0d8415820fc3..68250a57aace 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_COMPACTION_H
 #define _LINUX_COMPACTION_H
 
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 3fc433303d7a..3e838a828459 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_COMPAT_H
 #define _LINUX_COMPAT_H
 /*
@@ -171,15 +172,6 @@ extern int get_compat_itimerspec64(struct itimerspec64 *its,
 extern int put_compat_itimerspec64(const struct itimerspec64 *its,
 			struct compat_itimerspec __user *uits);
 
-/*
- * This function convert a timespec if necessary and returns a *user
- * space* pointer.  If no conversion is necessary, it returns the
- * initial pointer.  NULL is a legitimate argument and will always
- * output NULL.
- */
-extern int compat_convert_timespec(struct timespec __user **,
-				   const void __user *);
-
 struct compat_iovec {
 	compat_uptr_t	iov_base;
 	compat_size_t	iov_len;
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
index de179993e039..a06583e41f80 100644
--- a/include/linux/compiler-clang.h
+++ b/include/linux/compiler-clang.h
@@ -1,4 +1,5 @@
-#ifndef __LINUX_COMPILER_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_COMPILER_TYPES_H
 #error "Please don't include <linux/compiler-clang.h> directly, include <linux/compiler.h> instead."
 #endif
 
diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
index 16d41de92ee3..2272ded07496 100644
--- a/include/linux/compiler-gcc.h
+++ b/include/linux/compiler-gcc.h
@@ -1,4 +1,5 @@
-#ifndef __LINUX_COMPILER_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_COMPILER_TYPES_H
 #error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
 #endif
 
diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h
index d4c71132d07f..bfa08160db3a 100644
--- a/include/linux/compiler-intel.h
+++ b/include/linux/compiler-intel.h
@@ -1,4 +1,5 @@
-#ifndef __LINUX_COMPILER_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_COMPILER_TYPES_H
 #error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead."
 #endif
 
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index e95a2631e545..3672353a0acd 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -1,111 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPILER_H
 #define __LINUX_COMPILER_H
 
-#ifndef __ASSEMBLY__
+#include <linux/compiler_types.h>
 
-#ifdef __CHECKER__
-# define __user		__attribute__((noderef, address_space(1)))
-# define __kernel	__attribute__((address_space(0)))
-# define __safe		__attribute__((safe))
-# define __force	__attribute__((force))
-# define __nocast	__attribute__((nocast))
-# define __iomem	__attribute__((noderef, address_space(2)))
-# define __must_hold(x)	__attribute__((context(x,1,1)))
-# define __acquires(x)	__attribute__((context(x,0,1)))
-# define __releases(x)	__attribute__((context(x,1,0)))
-# define __acquire(x)	__context__(x,1)
-# define __release(x)	__context__(x,-1)
-# define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
-# define __percpu	__attribute__((noderef, address_space(3)))
-# define __rcu		__attribute__((noderef, address_space(4)))
-# define __private	__attribute__((noderef))
-extern void __chk_user_ptr(const volatile void __user *);
-extern void __chk_io_ptr(const volatile void __iomem *);
-# define ACCESS_PRIVATE(p, member) (*((typeof((p)->member) __force *) &(p)->member))
-#else /* __CHECKER__ */
-# ifdef STRUCTLEAK_PLUGIN
-#  define __user __attribute__((user))
-# else
-#  define __user
-# endif
-# define __kernel
-# define __safe
-# define __force
-# define __nocast
-# define __iomem
-# define __chk_user_ptr(x) (void)0
-# define __chk_io_ptr(x) (void)0
-# define __builtin_warning(x, y...) (1)
-# define __must_hold(x)
-# define __acquires(x)
-# define __releases(x)
-# define __acquire(x) (void)0
-# define __release(x) (void)0
-# define __cond_lock(x,c) (c)
-# define __percpu
-# define __rcu
-# define __private
-# define ACCESS_PRIVATE(p, member) ((p)->member)
-#endif /* __CHECKER__ */
-
-/* Indirect macros required for expanded argument pasting, eg. __LINE__. */
-#define ___PASTE(a,b) a##b
-#define __PASTE(a,b) ___PASTE(a,b)
+#ifndef __ASSEMBLY__
 
 #ifdef __KERNEL__
 
-#ifdef __GNUC__
-#include <linux/compiler-gcc.h>
-#endif
-
-#if defined(CC_USING_HOTPATCH) && !defined(__CHECKER__)
-#define notrace __attribute__((hotpatch(0,0)))
-#else
-#define notrace __attribute__((no_instrument_function))
-#endif
-
-/* Intel compiler defines __GNUC__. So we will overwrite implementations
- * coming from above header files here
- */
-#ifdef __INTEL_COMPILER
-# include <linux/compiler-intel.h>
-#endif
-
-/* Clang compiler defines __GNUC__. So we will overwrite implementations
- * coming from above header files here
- */
-#ifdef __clang__
-#include <linux/compiler-clang.h>
-#endif
-
-/*
- * Generic compiler-dependent macros required for kernel
- * build go below this comment. Actual compiler/compiler version
- * specific implementations come from the above header files
- */
-
-struct ftrace_branch_data {
-	const char *func;
-	const char *file;
-	unsigned line;
-	union {
-		struct {
-			unsigned long correct;
-			unsigned long incorrect;
-		};
-		struct {
-			unsigned long miss;
-			unsigned long hit;
-		};
-		unsigned long miss_hit[2];
-	};
-};
-
-struct ftrace_likely_data {
-	struct ftrace_branch_data	data;
-	unsigned long			constant;
-};
-
 /*
  * Note: DISABLE_BRANCH_PROFILING can be used by special lowlevel code
  * to disable branch tracing on a per file basis.
@@ -190,13 +92,13 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val,
 	asm("%c0:\n\t"							\
 	    ".pushsection .discard.reachable\n\t"			\
 	    ".long %c0b - .\n\t"					\
-	    ".popsection\n\t" : : "i" (__LINE__));			\
+	    ".popsection\n\t" : : "i" (__COUNTER__));			\
 })
 #define annotate_unreachable() ({					\
 	asm("%c0:\n\t"							\
 	    ".pushsection .discard.unreachable\n\t"			\
 	    ".long %c0b - .\n\t"					\
-	    ".popsection\n\t" : : "i" (__LINE__));			\
+	    ".popsection\n\t" : : "i" (__COUNTER__));			\
 })
 #define ASM_UNREACHABLE							\
 	"999:\n\t"							\
@@ -332,6 +234,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
  * with an explicit memory barrier or atomic instruction that provides the
  * required ordering.
  */
+#include <asm/barrier.h>
 
 #define __READ_ONCE(x, check)						\
 ({									\
@@ -340,6 +243,7 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 		__read_once_size(&(x), __u.__c, sizeof(x));		\
 	else								\
 		__read_once_size_nocheck(&(x), __u.__c, sizeof(x));	\
+	smp_read_barrier_depends(); /* Enforce dependency ordering from x */ \
 	__u.__val;							\
 })
 #define READ_ONCE(x) __READ_ONCE(x, 1)
@@ -362,167 +266,6 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 
 #endif /* __ASSEMBLY__ */
 
-#ifdef __KERNEL__
-/*
- * Allow us to mark functions as 'deprecated' and have gcc emit a nice
- * warning for each use, in hopes of speeding the functions removal.
- * Usage is:
- * 		int __deprecated foo(void)
- */
-#ifndef __deprecated
-# define __deprecated		/* unimplemented */
-#endif
-
-#ifdef MODULE
-#define __deprecated_for_modules __deprecated
-#else
-#define __deprecated_for_modules
-#endif
-
-#ifndef __must_check
-#define __must_check
-#endif
-
-#ifndef CONFIG_ENABLE_MUST_CHECK
-#undef __must_check
-#define __must_check
-#endif
-#ifndef CONFIG_ENABLE_WARN_DEPRECATED
-#undef __deprecated
-#undef __deprecated_for_modules
-#define __deprecated
-#define __deprecated_for_modules
-#endif
-
-#ifndef __malloc
-#define __malloc
-#endif
-
-/*
- * Allow us to avoid 'defined but not used' warnings on functions and data,
- * as well as force them to be emitted to the assembly file.
- *
- * As of gcc 3.4, static functions that are not marked with attribute((used))
- * may be elided from the assembly file.  As of gcc 3.4, static data not so
- * marked will not be elided, but this may change in a future gcc version.
- *
- * NOTE: Because distributions shipped with a backported unit-at-a-time
- * compiler in gcc 3.3, we must define __used to be __attribute__((used))
- * for gcc >=3.3 instead of 3.4.
- *
- * In prior versions of gcc, such functions and data would be emitted, but
- * would be warned about except with attribute((unused)).
- *
- * Mark functions that are referenced only in inline assembly as __used so
- * the code is emitted even though it appears to be unreferenced.
- */
-#ifndef __used
-# define __used			/* unimplemented */
-#endif
-
-#ifndef __maybe_unused
-# define __maybe_unused		/* unimplemented */
-#endif
-
-#ifndef __always_unused
-# define __always_unused	/* unimplemented */
-#endif
-
-#ifndef noinline
-#define noinline
-#endif
-
-/*
- * Rather then using noinline to prevent stack consumption, use
- * noinline_for_stack instead.  For documentation reasons.
- */
-#define noinline_for_stack noinline
-
-#ifndef __always_inline
-#define __always_inline inline
-#endif
-
-#endif /* __KERNEL__ */
-
-/*
- * From the GCC manual:
- *
- * Many functions do not examine any values except their arguments,
- * and have no effects except the return value.  Basically this is
- * just slightly more strict class than the `pure' attribute above,
- * since function is not allowed to read global memory.
- *
- * Note that a function that has pointer arguments and examines the
- * data pointed to must _not_ be declared `const'.  Likewise, a
- * function that calls a non-`const' function usually must not be
- * `const'.  It does not make sense for a `const' function to return
- * `void'.
- */
-#ifndef __attribute_const__
-# define __attribute_const__	/* unimplemented */
-#endif
-
-#ifndef __designated_init
-# define __designated_init
-#endif
-
-#ifndef __latent_entropy
-# define __latent_entropy
-#endif
-
-#ifndef __randomize_layout
-# define __randomize_layout __designated_init
-#endif
-
-#ifndef __no_randomize_layout
-# define __no_randomize_layout
-#endif
-
-#ifndef randomized_struct_fields_start
-# define randomized_struct_fields_start
-# define randomized_struct_fields_end
-#endif
-
-/*
- * Tell gcc if a function is cold. The compiler will assume any path
- * directly leading to the call is unlikely.
- */
-
-#ifndef __cold
-#define __cold
-#endif
-
-/* Simple shorthand for a section definition */
-#ifndef __section
-# define __section(S) __attribute__ ((__section__(#S)))
-#endif
-
-#ifndef __visible
-#define __visible
-#endif
-
-#ifndef __nostackprotector
-# define __nostackprotector
-#endif
-
-/*
- * Assume alignment of return value.
- */
-#ifndef __assume_aligned
-#define __assume_aligned(a, ...)
-#endif
-
-
-/* Are two types/vars the same type (ignoring qualifiers)? */
-#ifndef __same_type
-# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
-#endif
-
-/* Is this type a native word size -- useful for atomic operations */
-#ifndef __native_word
-# define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
-#endif
-
 /* Compile time object size, -1 for unknown */
 #ifndef __compiletime_object_size
 # define __compiletime_object_size(obj) -1
@@ -604,24 +347,4 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s
 	(volatile typeof(x) *)&(x); })
 #define ACCESS_ONCE(x) (*__ACCESS_ONCE(x))
 
-/**
- * lockless_dereference() - safely load a pointer for later dereference
- * @p: The pointer to load
- *
- * Similar to rcu_dereference(), but for situations where the pointed-to
- * object's lifetime is managed by something other than RCU.  That
- * "something other" might be reference counting or simple immortality.
- *
- * The seemingly unused variable ___typecheck_p validates that @p is
- * indeed a pointer type by using a pointer to typeof(*p) as the type.
- * Taking a pointer to typeof(*p) again is needed in case p is void *.
- */
-#define lockless_dereference(p) \
-({ \
-	typeof(p) _________p1 = READ_ONCE(p); \
-	typeof(*(p)) *___typecheck_p __maybe_unused; \
-	smp_read_barrier_depends(); /* Dependency order vs. p above. */ \
-	(_________p1); \
-})
-
 #endif /* __LINUX_COMPILER_H */
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
new file mode 100644
index 000000000000..6b79a9bba9a7
--- /dev/null
+++ b/include/linux/compiler_types.h
@@ -0,0 +1,274 @@
+#ifndef __LINUX_COMPILER_TYPES_H
+#define __LINUX_COMPILER_TYPES_H
+
+#ifndef __ASSEMBLY__
+
+#ifdef __CHECKER__
+# define __user		__attribute__((noderef, address_space(1)))
+# define __kernel	__attribute__((address_space(0)))
+# define __safe		__attribute__((safe))
+# define __force	__attribute__((force))
+# define __nocast	__attribute__((nocast))
+# define __iomem	__attribute__((noderef, address_space(2)))
+# define __must_hold(x)	__attribute__((context(x,1,1)))
+# define __acquires(x)	__attribute__((context(x,0,1)))
+# define __releases(x)	__attribute__((context(x,1,0)))
+# define __acquire(x)	__context__(x,1)
+# define __release(x)	__context__(x,-1)
+# define __cond_lock(x,c)	((c) ? ({ __acquire(x); 1; }) : 0)
+# define __percpu	__attribute__((noderef, address_space(3)))
+# define __rcu		__attribute__((noderef, address_space(4)))
+# define __private	__attribute__((noderef))
+extern void __chk_user_ptr(const volatile void __user *);
+extern void __chk_io_ptr(const volatile void __iomem *);
+# define ACCESS_PRIVATE(p, member) (*((typeof((p)->member) __force *) &(p)->member))
+#else /* __CHECKER__ */
+# ifdef STRUCTLEAK_PLUGIN
+#  define __user __attribute__((user))
+# else
+#  define __user
+# endif
+# define __kernel
+# define __safe
+# define __force
+# define __nocast
+# define __iomem
+# define __chk_user_ptr(x) (void)0
+# define __chk_io_ptr(x) (void)0
+# define __builtin_warning(x, y...) (1)
+# define __must_hold(x)
+# define __acquires(x)
+# define __releases(x)
+# define __acquire(x) (void)0
+# define __release(x) (void)0
+# define __cond_lock(x,c) (c)
+# define __percpu
+# define __rcu
+# define __private
+# define ACCESS_PRIVATE(p, member) ((p)->member)
+#endif /* __CHECKER__ */
+
+/* Indirect macros required for expanded argument pasting, eg. __LINE__. */
+#define ___PASTE(a,b) a##b
+#define __PASTE(a,b) ___PASTE(a,b)
+
+#ifdef __KERNEL__
+
+#ifdef __GNUC__
+#include <linux/compiler-gcc.h>
+#endif
+
+#if defined(CC_USING_HOTPATCH) && !defined(__CHECKER__)
+#define notrace __attribute__((hotpatch(0,0)))
+#else
+#define notrace __attribute__((no_instrument_function))
+#endif
+
+/* Intel compiler defines __GNUC__. So we will overwrite implementations
+ * coming from above header files here
+ */
+#ifdef __INTEL_COMPILER
+# include <linux/compiler-intel.h>
+#endif
+
+/* Clang compiler defines __GNUC__. So we will overwrite implementations
+ * coming from above header files here
+ */
+#ifdef __clang__
+#include <linux/compiler-clang.h>
+#endif
+
+/*
+ * Generic compiler-dependent macros required for kernel
+ * build go below this comment. Actual compiler/compiler version
+ * specific implementations come from the above header files
+ */
+
+struct ftrace_branch_data {
+	const char *func;
+	const char *file;
+	unsigned line;
+	union {
+		struct {
+			unsigned long correct;
+			unsigned long incorrect;
+		};
+		struct {
+			unsigned long miss;
+			unsigned long hit;
+		};
+		unsigned long miss_hit[2];
+	};
+};
+
+struct ftrace_likely_data {
+	struct ftrace_branch_data	data;
+	unsigned long			constant;
+};
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASSEMBLY__ */
+
+#ifdef __KERNEL__
+/*
+ * Allow us to mark functions as 'deprecated' and have gcc emit a nice
+ * warning for each use, in hopes of speeding the functions removal.
+ * Usage is:
+ * 		int __deprecated foo(void)
+ */
+#ifndef __deprecated
+# define __deprecated		/* unimplemented */
+#endif
+
+#ifdef MODULE
+#define __deprecated_for_modules __deprecated
+#else
+#define __deprecated_for_modules
+#endif
+
+#ifndef __must_check
+#define __must_check
+#endif
+
+#ifndef CONFIG_ENABLE_MUST_CHECK
+#undef __must_check
+#define __must_check
+#endif
+#ifndef CONFIG_ENABLE_WARN_DEPRECATED
+#undef __deprecated
+#undef __deprecated_for_modules
+#define __deprecated
+#define __deprecated_for_modules
+#endif
+
+#ifndef __malloc
+#define __malloc
+#endif
+
+/*
+ * Allow us to avoid 'defined but not used' warnings on functions and data,
+ * as well as force them to be emitted to the assembly file.
+ *
+ * As of gcc 3.4, static functions that are not marked with attribute((used))
+ * may be elided from the assembly file.  As of gcc 3.4, static data not so
+ * marked will not be elided, but this may change in a future gcc version.
+ *
+ * NOTE: Because distributions shipped with a backported unit-at-a-time
+ * compiler in gcc 3.3, we must define __used to be __attribute__((used))
+ * for gcc >=3.3 instead of 3.4.
+ *
+ * In prior versions of gcc, such functions and data would be emitted, but
+ * would be warned about except with attribute((unused)).
+ *
+ * Mark functions that are referenced only in inline assembly as __used so
+ * the code is emitted even though it appears to be unreferenced.
+ */
+#ifndef __used
+# define __used			/* unimplemented */
+#endif
+
+#ifndef __maybe_unused
+# define __maybe_unused		/* unimplemented */
+#endif
+
+#ifndef __always_unused
+# define __always_unused	/* unimplemented */
+#endif
+
+#ifndef noinline
+#define noinline
+#endif
+
+/*
+ * Rather then using noinline to prevent stack consumption, use
+ * noinline_for_stack instead.  For documentation reasons.
+ */
+#define noinline_for_stack noinline
+
+#ifndef __always_inline
+#define __always_inline inline
+#endif
+
+#endif /* __KERNEL__ */
+
+/*
+ * From the GCC manual:
+ *
+ * Many functions do not examine any values except their arguments,
+ * and have no effects except the return value.  Basically this is
+ * just slightly more strict class than the `pure' attribute above,
+ * since function is not allowed to read global memory.
+ *
+ * Note that a function that has pointer arguments and examines the
+ * data pointed to must _not_ be declared `const'.  Likewise, a
+ * function that calls a non-`const' function usually must not be
+ * `const'.  It does not make sense for a `const' function to return
+ * `void'.
+ */
+#ifndef __attribute_const__
+# define __attribute_const__	/* unimplemented */
+#endif
+
+#ifndef __designated_init
+# define __designated_init
+#endif
+
+#ifndef __latent_entropy
+# define __latent_entropy
+#endif
+
+#ifndef __randomize_layout
+# define __randomize_layout __designated_init
+#endif
+
+#ifndef __no_randomize_layout
+# define __no_randomize_layout
+#endif
+
+#ifndef randomized_struct_fields_start
+# define randomized_struct_fields_start
+# define randomized_struct_fields_end
+#endif
+
+/*
+ * Tell gcc if a function is cold. The compiler will assume any path
+ * directly leading to the call is unlikely.
+ */
+
+#ifndef __cold
+#define __cold
+#endif
+
+/* Simple shorthand for a section definition */
+#ifndef __section
+# define __section(S) __attribute__ ((__section__(#S)))
+#endif
+
+#ifndef __visible
+#define __visible
+#endif
+
+#ifndef __nostackprotector
+# define __nostackprotector
+#endif
+
+/*
+ * Assume alignment of return value.
+ */
+#ifndef __assume_aligned
+#define __assume_aligned(a, ...)
+#endif
+
+
+/* Are two types/vars the same type (ignoring qualifiers)? */
+#ifndef __same_type
+# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
+#endif
+
+/* Is this type a native word size -- useful for atomic operations */
+#ifndef __native_word
+# define __native_word(t) (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long))
+#endif
+
+#endif /* __LINUX_COMPILER_TYPES_H */
diff --git a/include/linux/completion.h b/include/linux/completion.h
index cae5400022a3..0662a417febe 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_COMPLETION_H
 #define __LINUX_COMPLETION_H
 
@@ -49,15 +50,23 @@ static inline void complete_release_commit(struct completion *x)
 	lock_commit_crosslock((struct lockdep_map *)&x->map);
 }
 
+#define init_completion_map(x, m)					\
+do {									\
+	lockdep_init_map_crosslock((struct lockdep_map *)&(x)->map,	\
+			(m)->name, (m)->key, 0);				\
+	__init_completion(x);						\
+} while (0)
+
 #define init_completion(x)						\
 do {									\
 	static struct lock_class_key __key;				\
 	lockdep_init_map_crosslock((struct lockdep_map *)&(x)->map,	\
-			"(complete)" #x,				\
+			"(completion)" #x,				\
 			&__key, 0);					\
 	__init_completion(x);						\
 } while (0)
 #else
+#define init_completion_map(x, m) __init_completion(x)
 #define init_completion(x) __init_completion(x)
 static inline void complete_acquire(struct completion *x) {}
 static inline void complete_release(struct completion *x) {}
@@ -67,12 +76,15 @@ static inline void complete_release_commit(struct completion *x) {}
 #ifdef CONFIG_LOCKDEP_COMPLETIONS
 #define COMPLETION_INITIALIZER(work) \
 	{ 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait), \
-	STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
+	STATIC_CROSS_LOCKDEP_MAP_INIT("(completion)" #work, &(work)) }
 #else
 #define COMPLETION_INITIALIZER(work) \
 	{ 0, __WAIT_QUEUE_HEAD_INITIALIZER((work).wait) }
 #endif
 
+#define COMPLETION_INITIALIZER_ONSTACK_MAP(work, map) \
+	(*({ init_completion_map(&(work), &(map)); &(work); }))
+
 #define COMPLETION_INITIALIZER_ONSTACK(work) \
 	(*({ init_completion(&work); &work; }))
 
@@ -102,8 +114,11 @@ static inline void complete_release_commit(struct completion *x) {}
 #ifdef CONFIG_LOCKDEP
 # define DECLARE_COMPLETION_ONSTACK(work) \
 	struct completion work = COMPLETION_INITIALIZER_ONSTACK(work)
+# define DECLARE_COMPLETION_ONSTACK_MAP(work, map) \
+	struct completion work = COMPLETION_INITIALIZER_ONSTACK_MAP(work, map)
 #else
 # define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
+# define DECLARE_COMPLETION_ONSTACK_MAP(work, map) DECLARE_COMPLETION(work)
 #endif
 
 /**
diff --git a/include/linux/component.h b/include/linux/component.h
index a559eebc0e0f..e71fbbbc74e2 100644
--- a/include/linux/component.h
+++ b/include/linux/component.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef COMPONENT_H
 #define COMPONENT_H
 
diff --git a/include/linux/configfs.h b/include/linux/configfs.h
index c96709049683..90b90f8baf99 100644
--- a/include/linux/configfs.h
+++ b/include/linux/configfs.h
@@ -58,7 +58,7 @@ struct config_item {
 	struct list_head	ci_entry;
 	struct config_item	*ci_parent;
 	struct config_group	*ci_group;
-	struct config_item_type	*ci_type;
+	const struct config_item_type	*ci_type;
 	struct dentry		*ci_dentry;
 };
 
@@ -72,7 +72,7 @@ static inline char *config_item_name(struct config_item * item)
 
 extern void config_item_init_type_name(struct config_item *item,
 				       const char *name,
-				       struct config_item_type *type);
+				       const struct config_item_type *type);
 
 extern struct config_item *config_item_get(struct config_item *);
 extern struct config_item *config_item_get_unless_zero(struct config_item *);
@@ -101,7 +101,7 @@ struct config_group {
 extern void config_group_init(struct config_group *group);
 extern void config_group_init_type_name(struct config_group *group,
 					const char *name,
-					struct config_item_type *type);
+					const struct config_item_type *type);
 
 static inline struct config_group *to_config_group(struct config_item *item)
 {
@@ -261,7 +261,7 @@ void configfs_remove_default_groups(struct config_group *group);
 struct config_group *
 configfs_register_default_group(struct config_group *parent_group,
 				const char *name,
-				struct config_item_type *item_type);
+				const struct config_item_type *item_type);
 void configfs_unregister_default_group(struct config_group *group);
 
 /* These functions can sleep and can alloc with GFP_KERNEL */
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index 6fd3c908a340..c0ec478ea5bf 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * console_struct.h
  *
diff --git a/include/linux/consolemap.h b/include/linux/consolemap.h
index c4811da1338b..254246673390 100644
--- a/include/linux/consolemap.h
+++ b/include/linux/consolemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * consolemap.h
  *
diff --git a/include/linux/context_tracking.h b/include/linux/context_tracking.h
index c78fc27418f2..d05609ad329d 100644
--- a/include/linux/context_tracking.h
+++ b/include/linux/context_tracking.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CONTEXT_TRACKING_H
 #define _LINUX_CONTEXT_TRACKING_H
 
diff --git a/include/linux/context_tracking_state.h b/include/linux/context_tracking_state.h
index 1d34fe68f48a..f128dc3be0df 100644
--- a/include/linux/context_tracking_state.h
+++ b/include/linux/context_tracking_state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CONTEXT_TRACKING_STATE_H
 #define _LINUX_CONTEXT_TRACKING_STATE_H
 
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index 28ffa94aed6b..207aed96a5b7 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_COREDUMP_H
 #define _LINUX_COREDUMP_H
 
diff --git a/include/linux/coresight-stm.h b/include/linux/coresight-stm.h
index a978bb85599a..74714b59f9d2 100644
--- a/include/linux/coresight-stm.h
+++ b/include/linux/coresight-stm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CORESIGHT_STM_H_
 #define __LINUX_CORESIGHT_STM_H_
 
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ca73bc1563f4..a04ef7c15c6a 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/cpu.h - generic cpu definition
  *
@@ -55,27 +56,17 @@ extern void unregister_cpu(struct cpu *cpu);
 extern ssize_t arch_cpu_probe(const char *, size_t);
 extern ssize_t arch_cpu_release(const char *, size_t);
 #endif
-struct notifier_block;
-
-#define CPU_ONLINE		0x0002 /* CPU (unsigned)v is up */
-#define CPU_UP_PREPARE		0x0003 /* CPU (unsigned)v coming up */
-#define CPU_DEAD		0x0007 /* CPU (unsigned)v dead */
-#define CPU_POST_DEAD		0x0009 /* CPU (unsigned)v dead, cpu_hotplug
-					* lock is dropped */
-#define CPU_BROKEN		0x000B /* CPU (unsigned)v did not die properly,
-					* perhaps due to preemption. */
-
-/* Used for CPU hotplug events occurring while tasks are frozen due to a suspend
- * operation in progress
+
+/*
+ * These states are not related to the core CPU hotplug mechanism. They are
+ * used by various (sub)architectures to track internal state
  */
-#define CPU_TASKS_FROZEN	0x0010
-
-#define CPU_ONLINE_FROZEN	(CPU_ONLINE | CPU_TASKS_FROZEN)
-#define CPU_UP_PREPARE_FROZEN	(CPU_UP_PREPARE | CPU_TASKS_FROZEN)
-#define CPU_UP_CANCELED_FROZEN	(CPU_UP_CANCELED | CPU_TASKS_FROZEN)
-#define CPU_DOWN_PREPARE_FROZEN	(CPU_DOWN_PREPARE | CPU_TASKS_FROZEN)
-#define CPU_DOWN_FAILED_FROZEN	(CPU_DOWN_FAILED | CPU_TASKS_FROZEN)
-#define CPU_DEAD_FROZEN		(CPU_DEAD | CPU_TASKS_FROZEN)
+#define CPU_ONLINE		0x0002 /* CPU is up */
+#define CPU_UP_PREPARE		0x0003 /* CPU coming up */
+#define CPU_DEAD		0x0007 /* CPU dead */
+#define CPU_DEAD_FROZEN		0x0008 /* CPU timed out on unplug */
+#define CPU_POST_DEAD		0x0009 /* CPU successfully unplugged */
+#define CPU_BROKEN		0x000B /* CPU did not die properly */
 
 #ifdef CONFIG_SMP
 extern bool cpuhp_tasks_frozen;
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 537ff842ff73..28734ee185a7 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -919,6 +919,9 @@ static inline bool policy_has_boost_freq(struct cpufreq_policy *policy)
 
 extern unsigned int arch_freq_get_on_cpu(int cpu);
 
+extern void arch_set_freq_scale(struct cpumask *cpus, unsigned long cur_freq,
+				unsigned long max_freq);
+
 /* the following are really really optional */
 extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
 extern struct freq_attr cpufreq_freq_attr_scaling_boost_freqs;
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index f24bfb2b9a2d..ec32c4c5eb30 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -1,10 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPUHOTPLUG_H
 #define __CPUHOTPLUG_H
 
 #include <linux/types.h>
 
+/*
+ * CPU-up			CPU-down
+ *
+ * BP		AP		BP		AP
+ *
+ * OFFLINE			OFFLINE
+ *   |				  ^
+ *   v				  |
+ * BRINGUP_CPU->AP_OFFLINE	BRINGUP_CPU  <- AP_IDLE_DEAD (idle thread/play_dead)
+ *		  |				AP_OFFLINE
+ *		  v (IRQ-off)	  ,---------------^
+ *		AP_ONLNE	  | (stop_machine)
+ *		  |		TEARDOWN_CPU <-	AP_ONLINE_IDLE
+ *		  |				  ^
+ *		  v				  |
+ *              AP_ACTIVE			AP_ACTIVE
+ */
+
 enum cpuhp_state {
-	CPUHP_OFFLINE,
+	CPUHP_INVALID = -1,
+	CPUHP_OFFLINE = 0,
 	CPUHP_CREATE_THREADS,
 	CPUHP_PERF_PREPARE,
 	CPUHP_PERF_X86_PREPARE,
@@ -79,6 +99,7 @@ enum cpuhp_state {
 	CPUHP_AP_IRQ_HIP04_STARTING,
 	CPUHP_AP_IRQ_ARMADA_XP_STARTING,
 	CPUHP_AP_IRQ_BCM2836_STARTING,
+	CPUHP_AP_IRQ_MIPS_GIC_STARTING,
 	CPUHP_AP_ARM_MVEBU_COHERENCY,
 	CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
 	CPUHP_AP_PERF_X86_STARTING,
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
index cd415b733c2a..75b565194437 100644
--- a/include/linux/cpumask.h
+++ b/include/linux/cpumask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CPUMASK_H
 #define __LINUX_CPUMASK_H
 
@@ -130,6 +131,11 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
 	return 0;
 }
 
+static inline unsigned int cpumask_last(const struct cpumask *srcp)
+{
+	return 0;
+}
+
 /* Valid inputs for n are -1 and 0. */
 static inline unsigned int cpumask_next(int n, const struct cpumask *srcp)
 {
@@ -178,6 +184,17 @@ static inline unsigned int cpumask_first(const struct cpumask *srcp)
 	return find_first_bit(cpumask_bits(srcp), nr_cpumask_bits);
 }
 
+/**
+ * cpumask_last - get the last CPU in a cpumask
+ * @srcp:	- the cpumask pointer
+ *
+ * Returns	>= nr_cpumask_bits if no CPUs set.
+ */
+static inline unsigned int cpumask_last(const struct cpumask *srcp)
+{
+	return find_last_bit(cpumask_bits(srcp), nr_cpumask_bits);
+}
+
 unsigned int cpumask_next(int n, const struct cpumask *srcp);
 
 /**
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index a1e6a33a4b03..1b8e41597ef5 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CPUSET_H
 #define _LINUX_CPUSET_H
 /*
diff --git a/include/linux/crash_core.h b/include/linux/crash_core.h
index 2df2118fbe13..06097ef30449 100644
--- a/include/linux/crash_core.h
+++ b/include/linux/crash_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_CRASH_CORE_H
 #define LINUX_CRASH_CORE_H
 
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index 3873697ba21c..a992e6ca2f1c 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_CRASH_DUMP_H
 #define LINUX_CRASH_DUMP_H
 
diff --git a/include/linux/crc-ccitt.h b/include/linux/crc-ccitt.h
index f52696a1ff0d..cd4f420231ba 100644
--- a/include/linux/crc-ccitt.h
+++ b/include/linux/crc-ccitt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC_CCITT_H
 #define _LINUX_CRC_CCITT_H
 
diff --git a/include/linux/crc-t10dif.h b/include/linux/crc-t10dif.h
index d81961e9e37d..1fe0cfcdea30 100644
--- a/include/linux/crc-t10dif.h
+++ b/include/linux/crc-t10dif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC_T10DIF_H
 #define _LINUX_CRC_T10DIF_H
 
diff --git a/include/linux/crc32c.h b/include/linux/crc32c.h
index bd8b44d96bdc..357ae4611a45 100644
--- a/include/linux/crc32c.h
+++ b/include/linux/crc32c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC32C_H
 #define _LINUX_CRC32C_H
 
diff --git a/include/linux/crc4.h b/include/linux/crc4.h
index 8f739f1d794f..bd2c90556a06 100644
--- a/include/linux/crc4.h
+++ b/include/linux/crc4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC4_H
 #define _LINUX_CRC4_H
 
diff --git a/include/linux/crc7.h b/include/linux/crc7.h
index d590765106f3..b462842f3c32 100644
--- a/include/linux/crc7.h
+++ b/include/linux/crc7.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CRC7_H
 #define _LINUX_CRC7_H
 #include <linux/types.h>
diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h
index 07eed95e10c7..54741295c70b 100644
--- a/include/linux/crush/crush.h
+++ b/include/linux/crush/crush.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_CRUSH_CRUSH_H
 #define CEPH_CRUSH_CRUSH_H
 
diff --git a/include/linux/crush/hash.h b/include/linux/crush/hash.h
index d1d90258242e..904df41f7847 100644
--- a/include/linux/crush/hash.h
+++ b/include/linux/crush/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_CRUSH_HASH_H
 #define CEPH_CRUSH_HASH_H
 
diff --git a/include/linux/crush/mapper.h b/include/linux/crush/mapper.h
index 141edabb947e..f9b99232f5a1 100644
--- a/include/linux/crush/mapper.h
+++ b/include/linux/crush/mapper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CEPH_CRUSH_MAPPER_H
 #define CEPH_CRUSH_MAPPER_H
 
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 84da9978e951..78508ca4b108 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/uaccess.h>
+#include <linux/completion.h>
 
 /*
  * Autoloaded crypto modules should only use a prefixed name to avoid allowing
@@ -468,6 +469,45 @@ struct crypto_alg {
 } CRYPTO_MINALIGN_ATTR;
 
 /*
+ * A helper struct for waiting for completion of async crypto ops
+ */
+struct crypto_wait {
+	struct completion completion;
+	int err;
+};
+
+/*
+ * Macro for declaring a crypto op async wait object on stack
+ */
+#define DECLARE_CRYPTO_WAIT(_wait) \
+	struct crypto_wait _wait = { \
+		COMPLETION_INITIALIZER_ONSTACK((_wait).completion), 0 }
+
+/*
+ * Async ops completion helper functioons
+ */
+void crypto_req_done(struct crypto_async_request *req, int err);
+
+static inline int crypto_wait_req(int err, struct crypto_wait *wait)
+{
+	switch (err) {
+	case -EINPROGRESS:
+	case -EBUSY:
+		wait_for_completion(&wait->completion);
+		reinit_completion(&wait->completion);
+		err = wait->err;
+		break;
+	};
+
+	return err;
+}
+
+static inline void crypto_init_wait(struct crypto_wait *wait)
+{
+	init_completion(&wait->completion);
+}
+
+/*
  * Algorithm registration interface.
  */
 int crypto_register_alg(struct crypto_alg *alg);
diff --git a/include/linux/cryptohash.h b/include/linux/cryptohash.h
index df4d3e943d28..f6ba4c3e60d7 100644
--- a/include/linux/cryptohash.h
+++ b/include/linux/cryptohash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CRYPTOHASH_H
 #define __CRYPTOHASH_H
 
diff --git a/include/linux/ctype.h b/include/linux/ctype.h
index f13e4ff6835a..363b004426db 100644
--- a/include/linux/ctype.h
+++ b/include/linux/ctype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CTYPE_H
 #define _LINUX_CTYPE_H
 
diff --git a/include/linux/cuda.h b/include/linux/cuda.h
index b72332823807..056867f09a01 100644
--- a/include/linux/cuda.h
+++ b/include/linux/cuda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for talking to the CUDA.  The CUDA is a microcontroller
  * which controls the ADB, system power, RTC, and various other things.
diff --git a/include/linux/cyclades.h b/include/linux/cyclades.h
index 19ae518f5471..05ee0f19448a 100644
--- a/include/linux/cyclades.h
+++ b/include/linux/cyclades.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Revision: 3.0 $$Date: 1998/11/02 14:20:59 $
  * linux/include/linux/cyclades.h
  *
@@ -156,6 +157,9 @@ struct cyclades_port {
 	struct cyclades_icount	icount;
 	struct completion       shutdown_wait;
 	int throttle;
+#ifdef CONFIG_CYZ_INTR
+	struct timer_list	rx_full_timer;
+#endif
 };
 
 #define	CLOSING_WAIT_DELAY	30*HZ
diff --git a/include/linux/dax.h b/include/linux/dax.h
index 46cad1d0f129..895e16fcc62d 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DAX_H
 #define _LINUX_DAX_H
 
@@ -19,8 +20,6 @@ struct dax_operations {
 	/* copy_from_iter: required operation for fs-dax direct-i/o */
 	size_t (*copy_from_iter)(struct dax_device *, pgoff_t, void *, size_t,
 			struct iov_iter *);
-	/* flush: optional driver-specific cache management after writes */
-	void (*flush)(struct dax_device *, pgoff_t, void *, size_t);
 };
 
 extern struct attribute_group dax_attribute_group;
@@ -90,8 +89,7 @@ long dax_direct_access(struct dax_device *dax_dev, pgoff_t pgoff, long nr_pages,
 		void **kaddr, pfn_t *pfn);
 size_t dax_copy_from_iter(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
 		size_t bytes, struct iov_iter *i);
-void dax_flush(struct dax_device *dax_dev, pgoff_t pgoff, void *addr,
-		size_t size);
+void dax_flush(struct dax_device *dax_dev, void *addr, size_t size);
 void dax_write_cache(struct dax_device *dax_dev, bool wc);
 bool dax_write_cache_enabled(struct dax_device *dax_dev);
 
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ed1a7cf6923a..65cd8ab60b7a 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_DCACHE_H
 #define __LINUX_DCACHE_H
 
@@ -519,7 +520,7 @@ static inline struct inode *d_inode(const struct dentry *dentry)
 }
 
 /**
- * d_inode_rcu - Get the actual inode of this dentry with ACCESS_ONCE()
+ * d_inode_rcu - Get the actual inode of this dentry with READ_ONCE()
  * @dentry: The dentry to query
  *
  * This is the helper normal filesystems should use to get at their own inodes
@@ -527,7 +528,7 @@ static inline struct inode *d_inode(const struct dentry *dentry)
  */
 static inline struct inode *d_inode_rcu(const struct dentry *dentry)
 {
-	return ACCESS_ONCE(dentry->d_inode);
+	return READ_ONCE(dentry->d_inode);
 }
 
 /**
diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 68449293c4b6..6b64b6cc2175 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DCCP_H
 #define _LINUX_DCCP_H
 
diff --git a/include/linux/dcookies.h b/include/linux/dcookies.h
index 699b6c499c4f..ddfdac20cad0 100644
--- a/include/linux/dcookies.h
+++ b/include/linux/dcookies.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * dcookies.h
  *
diff --git a/include/linux/debug_locks.h b/include/linux/debug_locks.h
index 822c1354f3a6..120225e9a366 100644
--- a/include/linux/debug_locks.h
+++ b/include/linux/debug_locks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_DEBUG_LOCKING_H
 #define __LINUX_DEBUG_LOCKING_H
 
diff --git a/include/linux/debugobjects.h b/include/linux/debugobjects.h
index d82bf1994485..afc416e5dcab 100644
--- a/include/linux/debugobjects.h
+++ b/include/linux/debugobjects.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DEBUGOBJECTS_H
 #define _LINUX_DEBUGOBJECTS_H
 
diff --git a/include/linux/decompress/bunzip2.h b/include/linux/decompress/bunzip2.h
index 4d683df898e6..5860163942a4 100644
--- a/include/linux/decompress/bunzip2.h
+++ b/include/linux/decompress/bunzip2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_BUNZIP2_H
 #define DECOMPRESS_BUNZIP2_H
 
diff --git a/include/linux/decompress/generic.h b/include/linux/decompress/generic.h
index 1fcfd64b5076..207d80138db5 100644
--- a/include/linux/decompress/generic.h
+++ b/include/linux/decompress/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_GENERIC_H
 #define DECOMPRESS_GENERIC_H
 
diff --git a/include/linux/decompress/inflate.h b/include/linux/decompress/inflate.h
index e4f411fdbd24..b65f24e7d442 100644
--- a/include/linux/decompress/inflate.h
+++ b/include/linux/decompress/inflate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_DECOMPRESS_INFLATE_H
 #define LINUX_DECOMPRESS_INFLATE_H
 
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 7925bf0ee836..868e9eacd69e 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/compr_mm.h
  *
diff --git a/include/linux/decompress/unlz4.h b/include/linux/decompress/unlz4.h
index 3273c2f36496..5a235f605d5f 100644
--- a/include/linux/decompress/unlz4.h
+++ b/include/linux/decompress/unlz4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_UNLZ4_H
 #define DECOMPRESS_UNLZ4_H
 
diff --git a/include/linux/decompress/unlzma.h b/include/linux/decompress/unlzma.h
index 8a891a193840..1c930f125182 100644
--- a/include/linux/decompress/unlzma.h
+++ b/include/linux/decompress/unlzma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_UNLZMA_H
 #define DECOMPRESS_UNLZMA_H
 
diff --git a/include/linux/decompress/unlzo.h b/include/linux/decompress/unlzo.h
index af18f95d6570..550ae8783d1b 100644
--- a/include/linux/decompress/unlzo.h
+++ b/include/linux/decompress/unlzo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DECOMPRESS_UNLZO_H
 #define DECOMPRESS_UNLZO_H
 
diff --git a/include/linux/delay.h b/include/linux/delay.h
index 2ecb3c46b20a..b78bab4395d8 100644
--- a/include/linux/delay.h
+++ b/include/linux/delay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DELAY_H
 #define _LINUX_DELAY_H
 
diff --git a/include/linux/delayed_call.h b/include/linux/delayed_call.h
index f7fa76ae1a9b..a26c3b95b5cf 100644
--- a/include/linux/delayed_call.h
+++ b/include/linux/delayed_call.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DELAYED_CALL_H
 #define _DELAYED_CALL_H
 
diff --git a/include/linux/dell-led.h b/include/linux/dell-led.h
index 3f033c48071e..92521471517f 100644
--- a/include/linux/dell-led.h
+++ b/include/linux/dell-led.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DELL_LED_H__
 #define __DELL_LED_H__
 
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 597294e0cc40..3aae5b3af87c 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -19,6 +19,13 @@
 
 #define DEVFREQ_NAME_LEN 16
 
+/* DEVFREQ governor name */
+#define DEVFREQ_GOV_SIMPLE_ONDEMAND	"simple_ondemand"
+#define DEVFREQ_GOV_PERFORMANCE		"performance"
+#define DEVFREQ_GOV_POWERSAVE		"powersave"
+#define DEVFREQ_GOV_USERSPACE		"userspace"
+#define DEVFREQ_GOV_PASSIVE		"passive"
+
 /* DEVFREQ notifier interface */
 #define DEVFREQ_TRANSITION_NOTIFIER	(0)
 
@@ -84,8 +91,9 @@ struct devfreq_dev_status {
  *			from devfreq_remove_device() call. If the user
  *			has registered devfreq->nb at a notifier-head,
  *			this is the time to unregister it.
- * @freq_table:	Optional list of frequencies to support statistics.
- * @max_state:	The size of freq_table.
+ * @freq_table:		Optional list of frequencies to support statistics
+ *			and freq_table must be generated in ascending order.
+ * @max_state:		The size of freq_table.
  */
 struct devfreq_dev_profile {
 	unsigned long initial_freq;
@@ -120,6 +128,8 @@ struct devfreq_dev_profile {
  *		touch this.
  * @min_freq:	Limit minimum frequency requested by user (0: none)
  * @max_freq:	Limit maximum frequency requested by user (0: none)
+ * @scaling_min_freq:	Limit minimum frequency requested by OPP interface
+ * @scaling_max_freq:	Limit maximum frequency requested by OPP interface
  * @stop_polling:	 devfreq polling status of a device.
  * @total_trans:	Number of devfreq transitions
  * @trans_table:	Statistics of devfreq transitions
@@ -153,6 +163,8 @@ struct devfreq {
 
 	unsigned long min_freq;
 	unsigned long max_freq;
+	unsigned long scaling_min_freq;
+	unsigned long scaling_max_freq;
 	bool stop_polling;
 
 	/* information for device frequency transition */
diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 4f2b3b2076c4..a5538433c927 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -134,8 +134,6 @@ typedef long (*dm_dax_direct_access_fn) (struct dm_target *ti, pgoff_t pgoff,
 		long nr_pages, void **kaddr, pfn_t *pfn);
 typedef size_t (*dm_dax_copy_from_iter_fn)(struct dm_target *ti, pgoff_t pgoff,
 		void *addr, size_t bytes, struct iov_iter *i);
-typedef void (*dm_dax_flush_fn)(struct dm_target *ti, pgoff_t pgoff, void *addr,
-		size_t size);
 #define PAGE_SECTORS (PAGE_SIZE / 512)
 
 void dm_error(const char *message);
@@ -186,7 +184,6 @@ struct target_type {
 	dm_io_hints_fn io_hints;
 	dm_dax_direct_access_fn direct_access;
 	dm_dax_copy_from_iter_fn dax_copy_from_iter;
-	dm_dax_flush_fn dax_flush;
 
 	/* For internal device-mapper use. */
 	struct list_head list;
@@ -387,7 +384,7 @@ struct dm_arg {
  * Validate the next argument, either returning it as *value or, if invalid,
  * returning -EINVAL and setting *error.
  */
-int dm_read_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
+int dm_read_arg(const struct dm_arg *arg, struct dm_arg_set *arg_set,
 		unsigned *value, char **error);
 
 /*
@@ -395,7 +392,7 @@ int dm_read_arg(struct dm_arg *arg, struct dm_arg_set *arg_set,
  * arg->min and arg->max further arguments. Either return the size as
  * *num_args or, if invalid, return -EINVAL and set *error.
  */
-int dm_read_arg_group(struct dm_arg *arg, struct dm_arg_set *arg_set,
+int dm_read_arg_group(const struct dm_arg *arg, struct dm_arg_set *arg_set,
 		      unsigned *num_args, char **error);
 
 /*
diff --git a/include/linux/device.h b/include/linux/device.h
index c6f27207dbe8..fb9451599aca 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -307,8 +307,6 @@ struct driver_attribute {
 			 size_t count);
 };
 
-#define DRIVER_ATTR(_name, _mode, _show, _store) \
-	struct driver_attribute driver_attr_##_name = __ATTR(_name, _mode, _show, _store)
 #define DRIVER_ATTR_RW(_name) \
 	struct driver_attribute driver_attr_##_name = __ATTR_RW(_name)
 #define DRIVER_ATTR_RO(_name) \
@@ -372,9 +370,6 @@ int subsys_virtual_register(struct bus_type *subsys,
  * @devnode:	Callback to provide the devtmpfs.
  * @class_release: Called to release this class.
  * @dev_release: Called to release the device.
- * @suspend:	Used to put the device to sleep mode, usually to a low power
- *		state.
- * @resume:	Used to bring the device from the sleep mode.
  * @shutdown_pre: Called at shut-down time before driver shutdown.
  * @ns_type:	Callbacks so sysfs can detemine namespaces.
  * @namespace:	Namespace of the device belongs to this class.
@@ -402,8 +397,6 @@ struct class {
 	void (*class_release)(struct class *class);
 	void (*dev_release)(struct device *dev);
 
-	int (*suspend)(struct device *dev, pm_message_t state);
-	int (*resume)(struct device *dev);
 	int (*shutdown_pre)(struct device *dev);
 
 	const struct kobj_ns_type_operations *ns_type;
@@ -838,7 +831,7 @@ struct dev_links_info {
  * @driver_data: Private pointer for driver specific info.
  * @links:	Links to suppliers and consumers of this device.
  * @power:	For device power management.
- * 		See Documentation/power/admin-guide/devices.rst for details.
+ *		See Documentation/driver-api/pm/devices.rst for details.
  * @pm_domain:	Provide callbacks that are executed during system suspend,
  * 		hibernation, system resume and during runtime PM transitions
  * 		along with subsystem-level and driver-level callbacks.
@@ -1077,6 +1070,16 @@ static inline void dev_pm_syscore_device(struct device *dev, bool val)
 #endif
 }
 
+static inline void dev_pm_set_driver_flags(struct device *dev, u32 flags)
+{
+	dev->power.driver_flags = flags;
+}
+
+static inline bool dev_pm_test_driver_flags(struct device *dev, u32 flags)
+{
+	return !!(dev->power.driver_flags & flags);
+}
+
 static inline void device_lock(struct device *dev)
 {
 	mutex_lock(&dev->mutex);
diff --git a/include/linux/device_cgroup.h b/include/linux/device_cgroup.h
index 8b64221b432b..cdbc344a92e4 100644
--- a/include/linux/device_cgroup.h
+++ b/include/linux/device_cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fs.h>
 
 #ifdef CONFIG_CGROUP_DEVICE
diff --git a/include/linux/dio.h b/include/linux/dio.h
index 2cc0fd00463f..1470d1d943b4 100644
--- a/include/linux/dio.h
+++ b/include/linux/dio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* header file for DIO boards for the HP300 architecture.
  * Maybe this should handle DIO-II later?
  * The general structure of this is vaguely based on how
diff --git a/include/linux/dirent.h b/include/linux/dirent.h
index f072fb8d10a3..fc61f3cff72f 100644
--- a/include/linux/dirent.h
+++ b/include/linux/dirent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DIRENT_H
 #define _LINUX_DIRENT_H
 
diff --git a/include/linux/dma-direction.h b/include/linux/dma-direction.h
index 95b6a82f5951..3649a031893a 100644
--- a/include/linux/dma-direction.h
+++ b/include/linux/dma-direction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DMA_DIRECTION_H
 #define _LINUX_DMA_DIRECTION_H
 /*
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 29ce9815da87..7653ea66874d 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DMA_MAPPING_H
 #define _LINUX_DMA_MAPPING_H
 
diff --git a/include/linux/dma/mmp-pdma.h b/include/linux/dma/mmp-pdma.h
index 2dc9b2bc18fc..25cab62a28c4 100644
--- a/include/linux/dma/mmp-pdma.h
+++ b/include/linux/dma/mmp-pdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MMP_PDMA_H_
 #define _MMP_PDMA_H_
 
diff --git a/include/linux/dma/pxa-dma.h b/include/linux/dma/pxa-dma.h
index 3edc99294bf6..e56ec7af4fd7 100644
--- a/include/linux/dma/pxa-dma.h
+++ b/include/linux/dma/pxa-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PXA_DMA_H_
 #define _PXA_DMA_H_
 
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index 90884072fa73..21b3e7d33d68 100644
--- a/include/linux/dma_remapping.h
+++ b/include/linux/dma_remapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DMA_REMAPPING_H
 #define _DMA_REMAPPING_H
 
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index 9bbf21a516e4..46e151172d95 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DMI_H__
 #define __DMI_H__
 
diff --git a/include/linux/dnotify.h b/include/linux/dnotify.h
index 3290555a52ee..0aad774beaec 100644
--- a/include/linux/dnotify.h
+++ b/include/linux/dnotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DNOTIFY_H
 #define _LINUX_DNOTIFY_H
 /*
diff --git a/include/linux/dqblk_qtree.h b/include/linux/dqblk_qtree.h
index 0de21e935976..100d22a46b82 100644
--- a/include/linux/dqblk_qtree.h
+++ b/include/linux/dqblk_qtree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Definitions of structures and functions for quota formats using trie
  */
diff --git a/include/linux/dqblk_v1.h b/include/linux/dqblk_v1.h
index c0d4d1e2a45c..85d837a14838 100644
--- a/include/linux/dqblk_v1.h
+++ b/include/linux/dqblk_v1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	File with in-memory structures of old quota format
  */
diff --git a/include/linux/dqblk_v2.h b/include/linux/dqblk_v2.h
index 18000a542677..da95932ad9e7 100644
--- a/include/linux/dqblk_v2.h
+++ b/include/linux/dqblk_v2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Definitions for vfsv0 quota format
  */
diff --git a/include/linux/drbd_genl.h b/include/linux/drbd_genl.h
index 4e6d4d4c7056..53f44b8cd75f 100644
--- a/include/linux/drbd_genl.h
+++ b/include/linux/drbd_genl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * General overview:
  * full generic netlink message:
diff --git a/include/linux/drbd_genl_api.h b/include/linux/drbd_genl_api.h
index 9ef50d51e34e..bd62efc29002 100644
--- a/include/linux/drbd_genl_api.h
+++ b/include/linux/drbd_genl_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef DRBD_GENL_STRUCT_H
 #define DRBD_GENL_STRUCT_H
 
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h
index 24ae1b9b76c7..9e33f7038bea 100644
--- a/include/linux/drbd_limits.h
+++ b/include/linux/drbd_limits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   drbd_limits.h
   This file is part of DRBD by Philipp Reisner and Lars Ellenberg.
diff --git a/include/linux/ds2782_battery.h b/include/linux/ds2782_battery.h
index b4e281f65c15..fb6c97e10956 100644
--- a/include/linux/ds2782_battery.h
+++ b/include/linux/ds2782_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_DS2782_BATTERY_H
 #define __LINUX_DS2782_BATTERY_H
 
diff --git a/include/linux/dtlk.h b/include/linux/dtlk.h
index 22a7b9a5f5d1..27b95e70bde3 100644
--- a/include/linux/dtlk.h
+++ b/include/linux/dtlk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define DTLK_MINOR	0
 #define DTLK_IO_EXTENT	0x02
 
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 546d68057e3b..2fd8006153c3 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DYNAMIC_DEBUG_H
 #define _DYNAMIC_DEBUG_H
 
diff --git a/include/linux/dynamic_queue_limits.h b/include/linux/dynamic_queue_limits.h
index a4be70398ce1..023eae69398c 100644
--- a/include/linux/dynamic_queue_limits.h
+++ b/include/linux/dynamic_queue_limits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Dynamic queue limits (dql) - Definitions
  *
@@ -88,7 +89,7 @@ static inline void dql_queued(struct dql *dql, unsigned int count)
 /* Returns how many objects can be queued, < 0 indicates over limit. */
 static inline int dql_avail(const struct dql *dql)
 {
-	return ACCESS_ONCE(dql->adj_limit) - ACCESS_ONCE(dql->num_queued);
+	return READ_ONCE(dql->adj_limit) - READ_ONCE(dql->num_queued);
 }
 
 /* Record number of completed objects and recalculate the limit. */
diff --git a/include/linux/earlycpio.h b/include/linux/earlycpio.h
index 111f46d83d00..c70519267c77 100644
--- a/include/linux/earlycpio.h
+++ b/include/linux/earlycpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EARLYCPIO_H
 #define _LINUX_EARLYCPIO_H
 
diff --git a/include/linux/ecryptfs.h b/include/linux/ecryptfs.h
index 8d5ab998a222..91e142abf7e8 100644
--- a/include/linux/ecryptfs.h
+++ b/include/linux/ecryptfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ECRYPTFS_H
 #define _LINUX_ECRYPTFS_H
 
diff --git a/include/linux/eeprom_93xx46.h b/include/linux/eeprom_93xx46.h
index 915898759280..eec7928ff8fe 100644
--- a/include/linux/eeprom_93xx46.h
+++ b/include/linux/eeprom_93xx46.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Module: eeprom_93xx46
  * platform description for 93xx46 EEPROMs.
diff --git a/include/linux/efi-bgrt.h b/include/linux/efi-bgrt.h
index e6f624b53c3d..e6cd51005633 100644
--- a/include/linux/efi-bgrt.h
+++ b/include/linux/efi-bgrt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EFI_BGRT_H
 #define _LINUX_EFI_BGRT_H
 
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 66f4a4e79f4b..d813f7b04da7 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EFI_H
 #define _LINUX_EFI_H
 
diff --git a/include/linux/efs_vh.h b/include/linux/efs_vh.h
index 8a11150c61fe..206c5270f7b8 100644
--- a/include/linux/efs_vh.h
+++ b/include/linux/efs_vh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * efs_vh.h
  *
diff --git a/include/linux/eisa.h b/include/linux/eisa.h
index 6925249a5ac6..b012e30afebd 100644
--- a/include/linux/eisa.h
+++ b/include/linux/eisa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EISA_H
 #define _LINUX_EISA_H
 
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 5bc8f8682a3e..3d794b3dc532 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELEVATOR_H
 #define _LINUX_ELEVATOR_H
 
@@ -144,6 +145,7 @@ struct elevator_type
 	size_t icq_align;	/* ditto */
 	struct elv_fs_entry *elevator_attrs;
 	char elevator_name[ELV_NAME_MAX];
+	const char *elevator_alias;
 	struct module *elevator_owner;
 	bool uses_mq;
 #ifdef CONFIG_BLK_DEBUG_FS
diff --git a/include/linux/elf-randomize.h b/include/linux/elf-randomize.h
index b5f0bda9472e..da0dbb7b6be3 100644
--- a/include/linux/elf-randomize.h
+++ b/include/linux/elf-randomize.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ELF_RANDOMIZE_H
 #define _ELF_RANDOMIZE_H
 
diff --git a/include/linux/elf.h b/include/linux/elf.h
index ba069e8f4f78..e3649b3e970e 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELF_H
 #define _LINUX_ELF_H
 
diff --git a/include/linux/elfcore-compat.h b/include/linux/elfcore-compat.h
index 0a90e1c3a422..b5f2efdd05e0 100644
--- a/include/linux/elfcore-compat.h
+++ b/include/linux/elfcore-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELFCORE_COMPAT_H
 #define _LINUX_ELFCORE_COMPAT_H
 
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index c8240a12c42d..4cad0e784b28 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELFCORE_H
 #define _LINUX_ELFCORE_H
 
diff --git a/include/linux/elfnote.h b/include/linux/elfnote.h
index 278e3ef05336..f236f5b931b2 100644
--- a/include/linux/elfnote.h
+++ b/include/linux/elfnote.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ELFNOTE_H
 #define _LINUX_ELFNOTE_H
 /*
diff --git a/include/linux/err.h b/include/linux/err.h
index 1e3558845e4c..87be24350e91 100644
--- a/include/linux/err.h
+++ b/include/linux/err.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ERR_H
 #define _LINUX_ERR_H
 
diff --git a/include/linux/errno.h b/include/linux/errno.h
index 7ce9fb1b7d28..3cba627577d6 100644
--- a/include/linux/errno.h
+++ b/include/linux/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ERRNO_H
 #define _LINUX_ERRNO_H
 
diff --git a/include/linux/errqueue.h b/include/linux/errqueue.h
index 6fdfc884fdeb..be1cf7291d6c 100644
--- a/include/linux/errqueue.h
+++ b/include/linux/errqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ERRQUEUE_H
 #define _LINUX_ERRQUEUE_H 1
 
diff --git a/include/linux/errseq.h b/include/linux/errseq.h
index f746bd8fe4d0..6ffae9c5052d 100644
--- a/include/linux/errseq.h
+++ b/include/linux/errseq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * See Documentation/errseq.rst and lib/errseq.c
  */
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 4587a4c36923..0c0146e7e274 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ethtool.h: Defines for Linux ethtool.
  *
diff --git a/include/linux/eventfd.h b/include/linux/eventfd.h
index 9e4befd95bc7..60b2985e8a18 100644
--- a/include/linux/eventfd.h
+++ b/include/linux/eventfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/eventfd.h
  *
diff --git a/include/linux/evm.h b/include/linux/evm.h
index 35ed9a8a403a..8302bc29bb35 100644
--- a/include/linux/evm.h
+++ b/include/linux/evm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * evm.h
  *
diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
index 5ab958cdc50b..0d3037419bc7 100644
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_EXPORTFS_H
 #define LINUX_EXPORTFS_H 1
 
diff --git a/include/linux/ext2_fs.h b/include/linux/ext2_fs.h
index 2723e715f67a..1fef88569037 100644
--- a/include/linux/ext2_fs.h
+++ b/include/linux/ext2_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/ext2_fs.h
  *
diff --git a/include/linux/extable.h b/include/linux/extable.h
index 28addad0dda7..41c5b3a25f67 100644
--- a/include/linux/extable.h
+++ b/include/linux/extable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_EXTABLE_H
 #define _LINUX_EXTABLE_H
 
diff --git a/include/linux/extcon-provider.h b/include/linux/extcon-provider.h
new file mode 100644
index 000000000000..2feca5881fa7
--- /dev/null
+++ b/include/linux/extcon-provider.h
@@ -0,0 +1,142 @@
+/*
+ * External Connector (extcon) framework
+ * - linux/include/linux/extcon-provider.h for extcon provider device driver.
+ *
+ * Copyright (C) 2017 Samsung Electronics
+ * Author: Chanwoo Choi <cw00.choi@samsung.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __LINUX_EXTCON_PROVIDER_H__
+#define __LINUX_EXTCON_PROVIDER_H__
+
+#include <linux/extcon.h>
+
+struct extcon_dev;
+
+#if IS_ENABLED(CONFIG_EXTCON)
+
+/* Following APIs register/unregister the extcon device. */
+extern int extcon_dev_register(struct extcon_dev *edev);
+extern void extcon_dev_unregister(struct extcon_dev *edev);
+extern int devm_extcon_dev_register(struct device *dev,
+				struct extcon_dev *edev);
+extern void devm_extcon_dev_unregister(struct device *dev,
+				struct extcon_dev *edev);
+
+/* Following APIs allocate/free the memory of the extcon device. */
+extern struct extcon_dev *extcon_dev_allocate(const unsigned int *cable);
+extern void extcon_dev_free(struct extcon_dev *edev);
+extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
+				const unsigned int *cable);
+extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);
+
+/* Synchronize the state and property value for each external connector. */
+extern int extcon_sync(struct extcon_dev *edev, unsigned int id);
+
+/*
+ * Following APIs set the connected state of each external connector.
+ * The 'id' argument indicates the defined external connector.
+ */
+extern int extcon_set_state(struct extcon_dev *edev, unsigned int id,
+				bool state);
+extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
+				bool state);
+
+/*
+ * Following APIs set the property of each external connector.
+ * The 'id' argument indicates the defined external connector
+ * and the 'prop' indicates the extcon property.
+ *
+ * And extcon_set_property_capability() set the capability of the property
+ * for each external connector. They are used to set the capability of the
+ * property of each external connector based on the id and property.
+ */
+extern int extcon_set_property(struct extcon_dev *edev, unsigned int id,
+				unsigned int prop,
+				union extcon_property_value prop_val);
+extern int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id,
+				unsigned int prop,
+				union extcon_property_value prop_val);
+extern int extcon_set_property_capability(struct extcon_dev *edev,
+				unsigned int id, unsigned int prop);
+
+#else /* CONFIG_EXTCON */
+static inline int extcon_dev_register(struct extcon_dev *edev)
+{
+	return 0;
+}
+
+static inline void extcon_dev_unregister(struct extcon_dev *edev) { }
+
+static inline int devm_extcon_dev_register(struct device *dev,
+				struct extcon_dev *edev)
+{
+	return -EINVAL;
+}
+
+static inline void devm_extcon_dev_unregister(struct device *dev,
+				struct extcon_dev *edev) { }
+
+static inline struct extcon_dev *extcon_dev_allocate(const unsigned int *cable)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline void extcon_dev_free(struct extcon_dev *edev) { }
+
+static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
+				const unsigned int *cable)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline void devm_extcon_dev_free(struct extcon_dev *edev) { }
+
+
+static inline int extcon_set_state(struct extcon_dev *edev, unsigned int id,
+				bool state)
+{
+	return 0;
+}
+
+static inline int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
+				bool state)
+{
+	return 0;
+}
+
+static inline int extcon_sync(struct extcon_dev *edev, unsigned int id)
+{
+	return 0;
+}
+
+static inline int extcon_set_property(struct extcon_dev *edev, unsigned int id,
+				unsigned int prop,
+				union extcon_property_value prop_val)
+{
+	return 0;
+}
+
+static inline int extcon_set_property_sync(struct extcon_dev *edev,
+				unsigned int id, unsigned int prop,
+				union extcon_property_value prop_val)
+{
+	return 0;
+}
+
+static inline int extcon_set_property_capability(struct extcon_dev *edev,
+				unsigned int id, unsigned int prop)
+{
+	return 0;
+}
+#endif /* CONFIG_EXTCON */
+#endif /* __LINUX_EXTCON_PROVIDER_H__ */
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 744d60ca80c3..6d94e82c8ad9 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -1,5 +1,6 @@
 /*
  * External Connector (extcon) framework
+ * - linux/include/linux/extcon.h for extcon consumer device driver.
  *
  * Copyright (C) 2015 Samsung Electronics
  * Author: Chanwoo Choi <cw00.choi@samsung.com>
@@ -170,61 +171,29 @@ union extcon_property_value {
 	int intval;	/* type : integer (intval) */
 };
 
-struct extcon_cable;
 struct extcon_dev;
 
 #if IS_ENABLED(CONFIG_EXTCON)
-
-/* Following APIs register/unregister the extcon device. */
-extern int extcon_dev_register(struct extcon_dev *edev);
-extern void extcon_dev_unregister(struct extcon_dev *edev);
-extern int devm_extcon_dev_register(struct device *dev,
-				struct extcon_dev *edev);
-extern void devm_extcon_dev_unregister(struct device *dev,
-				struct extcon_dev *edev);
-
-/* Following APIs allocate/free the memory of the extcon device. */
-extern struct extcon_dev *extcon_dev_allocate(const unsigned int *cable);
-extern void extcon_dev_free(struct extcon_dev *edev);
-extern struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
-				const unsigned int *cable);
-extern void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev);
-
-/* Synchronize the state and property value for each external connector. */
-extern int extcon_sync(struct extcon_dev *edev, unsigned int id);
-
 /*
- * Following APIs get/set the connected state of each external connector.
+ * Following APIs get the connected state of each external connector.
  * The 'id' argument indicates the defined external connector.
  */
 extern int extcon_get_state(struct extcon_dev *edev, unsigned int id);
-extern int extcon_set_state(struct extcon_dev *edev, unsigned int id,
-				bool state);
-extern int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
-				bool state);
 
 /*
- * Following APIs get/set the property of each external connector.
+ * Following APIs get the property of each external connector.
  * The 'id' argument indicates the defined external connector
  * and the 'prop' indicates the extcon property.
  *
- * And extcon_get/set_property_capability() set the capability of the property
- * for each external connector. They are used to set the capability of the
+ * And extcon_get_property_capability() get the capability of the property
+ * for each external connector. They are used to get the capability of the
  * property of each external connector based on the id and property.
  */
 extern int extcon_get_property(struct extcon_dev *edev, unsigned int id,
 				unsigned int prop,
 				union extcon_property_value *prop_val);
-extern int extcon_set_property(struct extcon_dev *edev, unsigned int id,
-				unsigned int prop,
-				union extcon_property_value prop_val);
-extern int extcon_set_property_sync(struct extcon_dev *edev, unsigned int id,
-				unsigned int prop,
-				union extcon_property_value prop_val);
 extern int extcon_get_property_capability(struct extcon_dev *edev,
 				unsigned int id, unsigned int prop);
-extern int extcon_set_property_capability(struct extcon_dev *edev,
-				unsigned int id, unsigned int prop);
 
 /*
  * Following APIs register the notifier block in order to detect
@@ -268,79 +237,17 @@ extern struct extcon_dev *extcon_get_edev_by_phandle(struct device *dev,
 extern const char *extcon_get_edev_name(struct extcon_dev *edev);
 
 #else /* CONFIG_EXTCON */
-static inline int extcon_dev_register(struct extcon_dev *edev)
-{
-	return 0;
-}
-
-static inline void extcon_dev_unregister(struct extcon_dev *edev) { }
-
-static inline int devm_extcon_dev_register(struct device *dev,
-				struct extcon_dev *edev)
-{
-	return -EINVAL;
-}
-
-static inline void devm_extcon_dev_unregister(struct device *dev,
-				struct extcon_dev *edev) { }
-
-static inline struct extcon_dev *extcon_dev_allocate(const unsigned int *cable)
-{
-	return ERR_PTR(-ENOSYS);
-}
-
-static inline void extcon_dev_free(struct extcon_dev *edev) { }
-
-static inline struct extcon_dev *devm_extcon_dev_allocate(struct device *dev,
-				const unsigned int *cable)
-{
-	return ERR_PTR(-ENOSYS);
-}
-
-static inline void devm_extcon_dev_free(struct extcon_dev *edev) { }
-
-
 static inline int extcon_get_state(struct extcon_dev *edev, unsigned int id)
 {
 	return 0;
 }
 
-static inline int extcon_set_state(struct extcon_dev *edev, unsigned int id,
-				bool state)
-{
-	return 0;
-}
-
-static inline int extcon_set_state_sync(struct extcon_dev *edev, unsigned int id,
-				bool state)
-{
-	return 0;
-}
-
-static inline int extcon_sync(struct extcon_dev *edev, unsigned int id)
-{
-	return 0;
-}
-
 static inline int extcon_get_property(struct extcon_dev *edev, unsigned int id,
 				unsigned int prop,
 				union extcon_property_value *prop_val)
 {
 	return 0;
 }
-static inline int extcon_set_property(struct extcon_dev *edev, unsigned int id,
-				unsigned int prop,
-				union extcon_property_value prop_val)
-{
-	return 0;
-}
-
-static inline int extcon_set_property_sync(struct extcon_dev *edev,
-				unsigned int id, unsigned int prop,
-				union extcon_property_value prop_val)
-{
-	return 0;
-}
 
 static inline int extcon_get_property_capability(struct extcon_dev *edev,
 				unsigned int id, unsigned int prop)
@@ -348,12 +255,6 @@ static inline int extcon_get_property_capability(struct extcon_dev *edev,
 	return 0;
 }
 
-static inline int extcon_set_property_capability(struct extcon_dev *edev,
-				unsigned int id, unsigned int prop)
-{
-	return 0;
-}
-
 static inline int extcon_register_notifier(struct extcon_dev *edev,
 				unsigned int id, struct notifier_block *nb)
 {
diff --git a/include/linux/falloc.h b/include/linux/falloc.h
index 7494dc67c66f..674d59f4d6ce 100644
--- a/include/linux/falloc.h
+++ b/include/linux/falloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FALLOC_H_
 #define _FALLOC_H_
 
diff --git a/include/linux/fanotify.h b/include/linux/fanotify.h
index cef93ddcc5a0..096c96f4f16a 100644
--- a/include/linux/fanotify.h
+++ b/include/linux/fanotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FANOTIFY_H
 #define _LINUX_FANOTIFY_H
 
diff --git a/include/linux/fault-inject.h b/include/linux/fault-inject.h
index 728d4e0292aa..c3c95d18bf43 100644
--- a/include/linux/fault-inject.h
+++ b/include/linux/fault-inject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FAULT_INJECT_H
 #define _LINUX_FAULT_INJECT_H
 
diff --git a/include/linux/fb.h b/include/linux/fb.h
index a964d076b4dc..bc24e48e396d 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FB_H
 #define _LINUX_FB_H
 
@@ -400,7 +401,7 @@ struct fb_tile_ops {
 #endif /* CONFIG_FB_TILEBLITTING */
 
 /* FBINFO_* = fb_info.flags bit flags */
-#define FBINFO_MODULE		0x0001	/* Low-level driver is a module */
+#define FBINFO_DEFAULT		0
 #define FBINFO_HWACCEL_DISABLED	0x0002
 	/* When FBINFO_HWACCEL_DISABLED is set:
 	 *  Hardware acceleration is turned off.  Software implementations
@@ -533,14 +534,6 @@ static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {
 	return a;
 }
 
-#ifdef MODULE
-#define FBINFO_DEFAULT	FBINFO_MODULE
-#else
-#define FBINFO_DEFAULT	0
-#endif
-
-// This will go away
-#define FBINFO_FLAG_MODULE	FBINFO_MODULE
 #define FBINFO_FLAG_DEFAULT	FBINFO_DEFAULT
 
 /* This will go away
diff --git a/include/linux/fbcon.h b/include/linux/fbcon.h
new file mode 100644
index 000000000000..f68a7db14165
--- /dev/null
+++ b/include/linux/fbcon.h
@@ -0,0 +1,12 @@
+#ifndef _LINUX_FBCON_H
+#define _LINUX_FBCON_H
+
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE
+void __init fb_console_init(void);
+void __exit fb_console_exit(void);
+#else
+static inline void fb_console_init(void) {}
+static inline void fb_console_exit(void) {}
+#endif
+
+#endif /* _LINUX_FBCON_H */
diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h
index 1b48d9c9a561..27dc7a60693e 100644
--- a/include/linux/fcntl.h
+++ b/include/linux/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FCNTL_H
 #define _LINUX_FCNTL_H
 
diff --git a/include/linux/fd.h b/include/linux/fd.h
index 69275bccc3e4..ece5ea53205b 100644
--- a/include/linux/fd.h
+++ b/include/linux/fd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FD_H
 #define _LINUX_FD_H
 
diff --git a/include/linux/fdtable.h b/include/linux/fdtable.h
index 6e84b2cae6ad..1c65817673db 100644
--- a/include/linux/fdtable.h
+++ b/include/linux/fdtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * descriptor table internals; you almost certainly want file.h instead.
  */
diff --git a/include/linux/file.h b/include/linux/file.h
index 61eb82cbafba..279720db984a 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Wrapper functions for accessing the file_struct fd array.
  */
diff --git a/include/linux/filter.h b/include/linux/filter.h
index d29e58fde364..48ec57e70f9f 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux Socket Filter Data Structures
  */
@@ -728,7 +729,7 @@ void xdp_do_flush_map(void);
 void bpf_warn_invalid_xdp_action(u32 act);
 void bpf_warn_invalid_xdp_redirect(u32 ifindex);
 
-struct sock *do_sk_redirect_map(void);
+struct sock *do_sk_redirect_map(struct sk_buff *skb);
 
 #ifdef CONFIG_BPF_JIT
 extern int bpf_jit_enable;
diff --git a/include/linux/fips.h b/include/linux/fips.h
index f8fb07b0b6b8..afeeece92302 100644
--- a/include/linux/fips.h
+++ b/include/linux/fips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FIPS_H
 #define _FIPS_H
 
diff --git a/include/linux/firewire.h b/include/linux/firewire.h
index d4b7683c722d..aec8f30ab200 100644
--- a/include/linux/firewire.h
+++ b/include/linux/firewire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FIREWIRE_H
 #define _LINUX_FIREWIRE_H
 
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index b1f9f0ccb8ac..d4508080348d 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FIRMWARE_H
 #define _LINUX_FIRMWARE_H
 
diff --git a/include/linux/flat.h b/include/linux/flat.h
index 7d542dfd0def..569b67d64d5c 100644
--- a/include/linux/flat.h
+++ b/include/linux/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2002-2003  David McCullough <davidm@snapgear.com>
  * Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
diff --git a/include/linux/flex_array.h b/include/linux/flex_array.h
index 11366b3ff0b4..b94fa61b51fb 100644
--- a/include/linux/flex_array.h
+++ b/include/linux/flex_array.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FLEX_ARRAY_H
 #define _FLEX_ARRAY_H
 
diff --git a/include/linux/flex_proportions.h b/include/linux/flex_proportions.h
index 0d348e011a6e..c12df59d3f5f 100644
--- a/include/linux/flex_proportions.h
+++ b/include/linux/flex_proportions.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Floating proportions with flexible aging period
  *
diff --git a/include/linux/fmc-sdb.h b/include/linux/fmc-sdb.h
index 599bd6bab56d..bec899f0867c 100644
--- a/include/linux/fmc-sdb.h
+++ b/include/linux/fmc-sdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is separate from sdb.h, because I want that one to remain
  * unchanged (as far as possible) from the official sdb distribution
diff --git a/include/linux/fpga/fpga-bridge.h b/include/linux/fpga/fpga-bridge.h
index dba6e3c697c7..aa66c87c120b 100644
--- a/include/linux/fpga/fpga-bridge.h
+++ b/include/linux/fpga/fpga-bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/device.h>
 #include <linux/fpga/fpga-mgr.h>
 
diff --git a/include/linux/frame.h b/include/linux/frame.h
index d772c61c31da..02d3ca2d9598 100644
--- a/include/linux/frame.h
+++ b/include/linux/frame.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FRAME_H
 #define _LINUX_FRAME_H
 
diff --git a/include/linux/freezer.h b/include/linux/freezer.h
index dd03e837ebb7..21f5aa0b217f 100644
--- a/include/linux/freezer.h
+++ b/include/linux/freezer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Freezer declarations */
 
 #ifndef FREEZER_H_INCLUDED
@@ -181,7 +182,7 @@ static inline void freezable_schedule_unsafe(void)
 }
 
 /*
- * Like freezable_schedule_timeout(), but should not block the freezer.  Do not
+ * Like schedule_timeout(), but should not block the freezer.  Do not
  * call this with locks held.
  */
 static inline long freezable_schedule_timeout(long timeout)
diff --git a/include/linux/frontswap.h b/include/linux/frontswap.h
index 1d18af034554..011965c08b93 100644
--- a/include/linux/frontswap.h
+++ b/include/linux/frontswap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FRONTSWAP_H
 #define _LINUX_FRONTSWAP_H
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 33d8e45cd874..269086440071 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_H
 #define _LINUX_FS_H
 
@@ -148,8 +149,8 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
 /* File was opened by fanotify and shouldn't generate fanotify events */
 #define FMODE_NONOTIFY		((__force fmode_t)0x4000000)
 
-/* File is capable of returning -EAGAIN if AIO will block */
-#define FMODE_AIO_NOWAIT	((__force fmode_t)0x8000000)
+/* File is capable of returning -EAGAIN if I/O will block */
+#define FMODE_NOWAIT	((__force fmode_t)0x8000000)
 
 /*
  * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
@@ -403,7 +404,7 @@ struct address_space {
 	unsigned long		flags;		/* error bits */
 	spinlock_t		private_lock;	/* for use by the address_space */
 	gfp_t			gfp_mask;	/* implicit gfp mask for allocations */
-	struct list_head	private_list;	/* ditto */
+	struct list_head	private_list;	/* for use by the address_space */
 	void			*private_data;	/* ditto */
 	errseq_t		wb_err;
 } __attribute__((aligned(sizeof(long)))) __randomize_layout;
@@ -1271,6 +1272,33 @@ extern pid_t f_getown(struct file *filp);
 extern int send_sigurg(struct fown_struct *fown);
 
 /*
+ * sb->s_flags.  Note that these mirror the equivalent MS_* flags where
+ * represented in both.
+ */
+#define SB_RDONLY	 1	/* Mount read-only */
+#define SB_NOSUID	 2	/* Ignore suid and sgid bits */
+#define SB_NODEV	 4	/* Disallow access to device special files */
+#define SB_NOEXEC	 8	/* Disallow program execution */
+#define SB_SYNCHRONOUS	16	/* Writes are synced at once */
+#define SB_MANDLOCK	64	/* Allow mandatory locks on an FS */
+#define SB_DIRSYNC	128	/* Directory modifications are synchronous */
+#define SB_NOATIME	1024	/* Do not update access times. */
+#define SB_NODIRATIME	2048	/* Do not update directory access times */
+#define SB_SILENT	32768
+#define SB_POSIXACL	(1<<16)	/* VFS does not apply the umask */
+#define SB_KERNMOUNT	(1<<22) /* this is a kern_mount call */
+#define SB_I_VERSION	(1<<23) /* Update inode I_version field */
+#define SB_LAZYTIME	(1<<25) /* Update the on-disk [acm]times lazily */
+
+/* These sb flags are internal to the kernel */
+#define SB_SUBMOUNT     (1<<26)
+#define SB_NOREMOTELOCK	(1<<27)
+#define SB_NOSEC	(1<<28)
+#define SB_BORN		(1<<29)
+#define SB_ACTIVE	(1<<30)
+#define SB_NOUSER	(1<<31)
+
+/*
  *	Umount options
  */
 
@@ -1754,13 +1782,10 @@ ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
 			      struct iovec **ret_pointer);
 
 extern ssize_t __vfs_read(struct file *, char __user *, size_t, loff_t *);
-extern ssize_t __vfs_write(struct file *, const char __user *, size_t, loff_t *);
 extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
 extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
 extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
 		unsigned long, loff_t *, rwf_t);
-extern ssize_t vfs_writev(struct file *, const struct iovec __user *,
-		unsigned long, loff_t *, rwf_t);
 extern ssize_t vfs_copy_file_range(struct file *, loff_t , struct file *,
 				   loff_t, size_t, unsigned int);
 extern int vfs_clone_file_prep_inodes(struct inode *inode_in, loff_t pos_in,
@@ -1829,6 +1854,7 @@ struct super_operations {
 #else
 #define S_DAX		0	/* Make all the DAX code disappear */
 #endif
+#define S_ENCRYPTED	16384	/* Encrypted file (using fs/crypto/) */
 
 /*
  * Note that nosuid etc flags are inode-specific: setting some file-system
@@ -1836,7 +1862,7 @@ struct super_operations {
  * possible to override it selectively if you really wanted to with some
  * ioctl() that is not currently implemented.
  *
- * Exception: MS_RDONLY is always applied to the entire file system.
+ * Exception: SB_RDONLY is always applied to the entire file system.
  *
  * Unfortunately, it is possible to change a filesystems flags with it mounted
  * with files in use.  This means that all of the inodes will not have their
@@ -1845,19 +1871,20 @@ struct super_operations {
  */
 #define __IS_FLG(inode, flg)	((inode)->i_sb->s_flags & (flg))
 
-#define IS_RDONLY(inode)	((inode)->i_sb->s_flags & MS_RDONLY)
-#define IS_SYNC(inode)		(__IS_FLG(inode, MS_SYNCHRONOUS) || \
+static inline bool sb_rdonly(const struct super_block *sb) { return sb->s_flags & MS_RDONLY; }
+#define IS_RDONLY(inode)	sb_rdonly((inode)->i_sb)
+#define IS_SYNC(inode)		(__IS_FLG(inode, SB_SYNCHRONOUS) || \
 					((inode)->i_flags & S_SYNC))
-#define IS_DIRSYNC(inode)	(__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
+#define IS_DIRSYNC(inode)	(__IS_FLG(inode, SB_SYNCHRONOUS|SB_DIRSYNC) || \
 					((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
-#define IS_MANDLOCK(inode)	__IS_FLG(inode, MS_MANDLOCK)
-#define IS_NOATIME(inode)	__IS_FLG(inode, MS_RDONLY|MS_NOATIME)
-#define IS_I_VERSION(inode)	__IS_FLG(inode, MS_I_VERSION)
+#define IS_MANDLOCK(inode)	__IS_FLG(inode, SB_MANDLOCK)
+#define IS_NOATIME(inode)	__IS_FLG(inode, SB_RDONLY|SB_NOATIME)
+#define IS_I_VERSION(inode)	__IS_FLG(inode, SB_I_VERSION)
 
 #define IS_NOQUOTA(inode)	((inode)->i_flags & S_NOQUOTA)
 #define IS_APPEND(inode)	((inode)->i_flags & S_APPEND)
 #define IS_IMMUTABLE(inode)	((inode)->i_flags & S_IMMUTABLE)
-#define IS_POSIXACL(inode)	__IS_FLG(inode, MS_POSIXACL)
+#define IS_POSIXACL(inode)	__IS_FLG(inode, SB_POSIXACL)
 
 #define IS_DEADDIR(inode)	((inode)->i_flags & S_DEAD)
 #define IS_NOCMTIME(inode)	((inode)->i_flags & S_NOCMTIME)
@@ -1867,6 +1894,7 @@ struct super_operations {
 #define IS_AUTOMOUNT(inode)	((inode)->i_flags & S_AUTOMOUNT)
 #define IS_NOSEC(inode)		((inode)->i_flags & S_NOSEC)
 #define IS_DAX(inode)		((inode)->i_flags & S_DAX)
+#define IS_ENCRYPTED(inode)	((inode)->i_flags & S_ENCRYPTED)
 
 #define IS_WHITEOUT(inode)	(S_ISCHR(inode->i_mode) && \
 				 (inode)->i_rdev == WHITEOUT_DEV)
@@ -2178,7 +2206,7 @@ static inline int __mandatory_lock(struct inode *ino)
 }
 
 /*
- * ... and these candidates should be on MS_MANDLOCK mounted fs,
+ * ... and these candidates should be on SB_MANDLOCK mounted fs,
  * otherwise these will be advisory locks
  */
 
@@ -2767,6 +2795,7 @@ extern int do_pipe_flags(int *, int);
 	id(KEXEC_IMAGE, kexec-image)		\
 	id(KEXEC_INITRAMFS, kexec-initramfs)	\
 	id(POLICY, security-policy)		\
+	id(X509_CERTIFICATE, x509-certificate)	\
 	id(MAX_ID, )
 
 #define __fid_enumify(ENUM, dummy) READING_ ## ENUM,
@@ -2788,15 +2817,15 @@ static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id)
 	return kernel_read_file_str[id];
 }
 
-extern int kernel_read(struct file *, loff_t, char *, unsigned long);
 extern int kernel_read_file(struct file *, void **, loff_t *, loff_t,
 			    enum kernel_read_file_id);
-extern int kernel_read_file_from_path(char *, void **, loff_t *, loff_t,
+extern int kernel_read_file_from_path(const char *, void **, loff_t *, loff_t,
 				      enum kernel_read_file_id);
 extern int kernel_read_file_from_fd(int, void **, loff_t *, loff_t,
 				    enum kernel_read_file_id);
-extern ssize_t kernel_write(struct file *, const char *, size_t, loff_t);
-extern ssize_t __kernel_write(struct file *, const char *, size_t, loff_t *);
+extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
+extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
+extern ssize_t __kernel_write(struct file *, const void *, size_t, loff_t *);
 extern struct file * open_exec(const char *);
  
 /* fs/dcache.c -- generic fs support functions */
@@ -3169,7 +3198,7 @@ static inline int kiocb_set_rw_flags(struct kiocb *ki, rwf_t flags)
 		return -EOPNOTSUPP;
 
 	if (flags & RWF_NOWAIT) {
-		if (!(ki->ki_filp->f_mode & FMODE_AIO_NOWAIT))
+		if (!(ki->ki_filp->f_mode & FMODE_NOWAIT))
 			return -EOPNOTSUPP;
 		ki->ki_flags |= IOCB_NOWAIT;
 	}
@@ -3294,7 +3323,7 @@ static inline int check_sticky(struct inode *dir, struct inode *inode)
 
 static inline void inode_has_no_xattr(struct inode *inode)
 {
-	if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & MS_NOSEC))
+	if (!is_sxid(inode->i_mode) && (inode->i_sb->s_flags & SB_NOSEC))
 		inode->i_flags |= S_NOSEC;
 }
 
diff --git a/include/linux/fs_pin.h b/include/linux/fs_pin.h
index 3886b3bffd7f..7cab74d66f85 100644
--- a/include/linux/fs_pin.h
+++ b/include/linux/fs_pin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/wait.h>
 
 struct fs_pin {
diff --git a/include/linux/fs_stack.h b/include/linux/fs_stack.h
index da317c7163ab..54210a42c30d 100644
--- a/include/linux/fs_stack.h
+++ b/include/linux/fs_stack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_STACK_H
 #define _LINUX_FS_STACK_H
 
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 7a026240cbb1..cf1015abfbf2 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_STRUCT_H
 #define _LINUX_FS_STRUCT_H
 
diff --git a/include/linux/fscrypt.h b/include/linux/fscrypt.h
new file mode 100644
index 000000000000..08b4b40c5aa8
--- /dev/null
+++ b/include/linux/fscrypt.h
@@ -0,0 +1,294 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fscrypt.h: declarations for per-file encryption
+ *
+ * Filesystems that implement per-file encryption include this header
+ * file with the __FS_HAS_ENCRYPTION set according to whether that filesystem
+ * is being built with encryption support or not.
+ *
+ * Copyright (C) 2015, Google, Inc.
+ *
+ * Written by Michael Halcrow, 2015.
+ * Modified by Jaegeuk Kim, 2015.
+ */
+#ifndef _LINUX_FSCRYPT_H
+#define _LINUX_FSCRYPT_H
+
+#include <linux/key.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/bio.h>
+#include <linux/dcache.h>
+#include <crypto/skcipher.h>
+#include <uapi/linux/fs.h>
+
+#define FS_CRYPTO_BLOCK_SIZE		16
+
+struct fscrypt_info;
+
+struct fscrypt_ctx {
+	union {
+		struct {
+			struct page *bounce_page;	/* Ciphertext page */
+			struct page *control_page;	/* Original page  */
+		} w;
+		struct {
+			struct bio *bio;
+			struct work_struct work;
+		} r;
+		struct list_head free_list;	/* Free list */
+	};
+	u8 flags;				/* Flags */
+};
+
+/**
+ * For encrypted symlinks, the ciphertext length is stored at the beginning
+ * of the string in little-endian format.
+ */
+struct fscrypt_symlink_data {
+	__le16 len;
+	char encrypted_path[1];
+} __packed;
+
+struct fscrypt_str {
+	unsigned char *name;
+	u32 len;
+};
+
+struct fscrypt_name {
+	const struct qstr *usr_fname;
+	struct fscrypt_str disk_name;
+	u32 hash;
+	u32 minor_hash;
+	struct fscrypt_str crypto_buf;
+};
+
+#define FSTR_INIT(n, l)		{ .name = n, .len = l }
+#define FSTR_TO_QSTR(f)		QSTR_INIT((f)->name, (f)->len)
+#define fname_name(p)		((p)->disk_name.name)
+#define fname_len(p)		((p)->disk_name.len)
+
+/*
+ * fscrypt superblock flags
+ */
+#define FS_CFLG_OWN_PAGES (1U << 1)
+
+/*
+ * crypto opertions for filesystems
+ */
+struct fscrypt_operations {
+	unsigned int flags;
+	const char *key_prefix;
+	int (*get_context)(struct inode *, void *, size_t);
+	int (*set_context)(struct inode *, const void *, size_t, void *);
+	bool (*dummy_context)(struct inode *);
+	bool (*empty_dir)(struct inode *);
+	unsigned (*max_namelen)(struct inode *);
+};
+
+/* Maximum value for the third parameter of fscrypt_operations.set_context(). */
+#define FSCRYPT_SET_CONTEXT_MAX_SIZE	28
+
+static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
+{
+	if (inode->i_sb->s_cop->dummy_context &&
+				inode->i_sb->s_cop->dummy_context(inode))
+		return true;
+	return false;
+}
+
+static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
+					u32 filenames_mode)
+{
+	if (contents_mode == FS_ENCRYPTION_MODE_AES_128_CBC &&
+	    filenames_mode == FS_ENCRYPTION_MODE_AES_128_CTS)
+		return true;
+
+	if (contents_mode == FS_ENCRYPTION_MODE_AES_256_XTS &&
+	    filenames_mode == FS_ENCRYPTION_MODE_AES_256_CTS)
+		return true;
+
+	return false;
+}
+
+static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
+{
+	if (str->len == 1 && str->name[0] == '.')
+		return true;
+
+	if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
+		return true;
+
+	return false;
+}
+
+#if __FS_HAS_ENCRYPTION
+
+static inline struct page *fscrypt_control_page(struct page *page)
+{
+	return ((struct fscrypt_ctx *)page_private(page))->w.control_page;
+}
+
+static inline bool fscrypt_has_encryption_key(const struct inode *inode)
+{
+	return (inode->i_crypt_info != NULL);
+}
+
+#include <linux/fscrypt_supp.h>
+
+#else /* !__FS_HAS_ENCRYPTION */
+
+static inline struct page *fscrypt_control_page(struct page *page)
+{
+	WARN_ON_ONCE(1);
+	return ERR_PTR(-EINVAL);
+}
+
+static inline bool fscrypt_has_encryption_key(const struct inode *inode)
+{
+	return 0;
+}
+
+#include <linux/fscrypt_notsupp.h>
+#endif /* __FS_HAS_ENCRYPTION */
+
+/**
+ * fscrypt_require_key - require an inode's encryption key
+ * @inode: the inode we need the key for
+ *
+ * If the inode is encrypted, set up its encryption key if not already done.
+ * Then require that the key be present and return -ENOKEY otherwise.
+ *
+ * No locks are needed, and the key will live as long as the struct inode --- so
+ * it won't go away from under you.
+ *
+ * Return: 0 on success, -ENOKEY if the key is missing, or another -errno code
+ * if a problem occurred while setting up the encryption key.
+ */
+static inline int fscrypt_require_key(struct inode *inode)
+{
+	if (IS_ENCRYPTED(inode)) {
+		int err = fscrypt_get_encryption_info(inode);
+
+		if (err)
+			return err;
+		if (!fscrypt_has_encryption_key(inode))
+			return -ENOKEY;
+	}
+	return 0;
+}
+
+/**
+ * fscrypt_prepare_link - prepare to link an inode into a possibly-encrypted directory
+ * @old_dentry: an existing dentry for the inode being linked
+ * @dir: the target directory
+ * @dentry: negative dentry for the target filename
+ *
+ * A new link can only be added to an encrypted directory if the directory's
+ * encryption key is available --- since otherwise we'd have no way to encrypt
+ * the filename.  Therefore, we first set up the directory's encryption key (if
+ * not already done) and return an error if it's unavailable.
+ *
+ * We also verify that the link will not violate the constraint that all files
+ * in an encrypted directory tree use the same encryption policy.
+ *
+ * Return: 0 on success, -ENOKEY if the directory's encryption key is missing,
+ * -EPERM if the link would result in an inconsistent encryption policy, or
+ * another -errno code.
+ */
+static inline int fscrypt_prepare_link(struct dentry *old_dentry,
+				       struct inode *dir,
+				       struct dentry *dentry)
+{
+	if (IS_ENCRYPTED(dir))
+		return __fscrypt_prepare_link(d_inode(old_dentry), dir);
+	return 0;
+}
+
+/**
+ * fscrypt_prepare_rename - prepare for a rename between possibly-encrypted directories
+ * @old_dir: source directory
+ * @old_dentry: dentry for source file
+ * @new_dir: target directory
+ * @new_dentry: dentry for target location (may be negative unless exchanging)
+ * @flags: rename flags (we care at least about %RENAME_EXCHANGE)
+ *
+ * Prepare for ->rename() where the source and/or target directories may be
+ * encrypted.  A new link can only be added to an encrypted directory if the
+ * directory's encryption key is available --- since otherwise we'd have no way
+ * to encrypt the filename.  A rename to an existing name, on the other hand,
+ * *is* cryptographically possible without the key.  However, we take the more
+ * conservative approach and just forbid all no-key renames.
+ *
+ * We also verify that the rename will not violate the constraint that all files
+ * in an encrypted directory tree use the same encryption policy.
+ *
+ * Return: 0 on success, -ENOKEY if an encryption key is missing, -EPERM if the
+ * rename would cause inconsistent encryption policies, or another -errno code.
+ */
+static inline int fscrypt_prepare_rename(struct inode *old_dir,
+					 struct dentry *old_dentry,
+					 struct inode *new_dir,
+					 struct dentry *new_dentry,
+					 unsigned int flags)
+{
+	if (IS_ENCRYPTED(old_dir) || IS_ENCRYPTED(new_dir))
+		return __fscrypt_prepare_rename(old_dir, old_dentry,
+						new_dir, new_dentry, flags);
+	return 0;
+}
+
+/**
+ * fscrypt_prepare_lookup - prepare to lookup a name in a possibly-encrypted directory
+ * @dir: directory being searched
+ * @dentry: filename being looked up
+ * @flags: lookup flags
+ *
+ * Prepare for ->lookup() in a directory which may be encrypted.  Lookups can be
+ * done with or without the directory's encryption key; without the key,
+ * filenames are presented in encrypted form.  Therefore, we'll try to set up
+ * the directory's encryption key, but even without it the lookup can continue.
+ *
+ * To allow invalidating stale dentries if the directory's encryption key is
+ * added later, we also install a custom ->d_revalidate() method and use the
+ * DCACHE_ENCRYPTED_WITH_KEY flag to indicate whether a given dentry is a
+ * plaintext name (flag set) or a ciphertext name (flag cleared).
+ *
+ * Return: 0 on success, -errno if a problem occurred while setting up the
+ * encryption key
+ */
+static inline int fscrypt_prepare_lookup(struct inode *dir,
+					 struct dentry *dentry,
+					 unsigned int flags)
+{
+	if (IS_ENCRYPTED(dir))
+		return __fscrypt_prepare_lookup(dir, dentry);
+	return 0;
+}
+
+/**
+ * fscrypt_prepare_setattr - prepare to change a possibly-encrypted inode's attributes
+ * @dentry: dentry through which the inode is being changed
+ * @attr: attributes to change
+ *
+ * Prepare for ->setattr() on a possibly-encrypted inode.  On an encrypted file,
+ * most attribute changes are allowed even without the encryption key.  However,
+ * without the encryption key we do have to forbid truncates.  This is needed
+ * because the size being truncated to may not be a multiple of the filesystem
+ * block size, and in that case we'd have to decrypt the final block, zero the
+ * portion past i_size, and re-encrypt it.  (We *could* allow truncating to a
+ * filesystem block boundary, but it's simpler to just forbid all truncates ---
+ * and we already forbid all other contents modifications without the key.)
+ *
+ * Return: 0 on success, -ENOKEY if the key is missing, or another -errno code
+ * if a problem occurred while setting up the encryption key.
+ */
+static inline int fscrypt_prepare_setattr(struct dentry *dentry,
+					  struct iattr *attr)
+{
+	if (attr->ia_valid & ATTR_SIZE)
+		return fscrypt_require_key(d_inode(dentry));
+	return 0;
+}
+
+#endif	/* _LINUX_FSCRYPT_H */
diff --git a/include/linux/fscrypt_common.h b/include/linux/fscrypt_common.h
deleted file mode 100644
index 97f738628b36..000000000000
--- a/include/linux/fscrypt_common.h
+++ /dev/null
@@ -1,141 +0,0 @@
-/*
- * fscrypt_common.h: common declarations for per-file encryption
- *
- * Copyright (C) 2015, Google, Inc.
- *
- * Written by Michael Halcrow, 2015.
- * Modified by Jaegeuk Kim, 2015.
- */
-
-#ifndef _LINUX_FSCRYPT_COMMON_H
-#define _LINUX_FSCRYPT_COMMON_H
-
-#include <linux/key.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/bio.h>
-#include <linux/dcache.h>
-#include <crypto/skcipher.h>
-#include <uapi/linux/fs.h>
-
-#define FS_CRYPTO_BLOCK_SIZE		16
-
-struct fscrypt_info;
-
-struct fscrypt_ctx {
-	union {
-		struct {
-			struct page *bounce_page;	/* Ciphertext page */
-			struct page *control_page;	/* Original page  */
-		} w;
-		struct {
-			struct bio *bio;
-			struct work_struct work;
-		} r;
-		struct list_head free_list;	/* Free list */
-	};
-	u8 flags;				/* Flags */
-};
-
-/**
- * For encrypted symlinks, the ciphertext length is stored at the beginning
- * of the string in little-endian format.
- */
-struct fscrypt_symlink_data {
-	__le16 len;
-	char encrypted_path[1];
-} __packed;
-
-struct fscrypt_str {
-	unsigned char *name;
-	u32 len;
-};
-
-struct fscrypt_name {
-	const struct qstr *usr_fname;
-	struct fscrypt_str disk_name;
-	u32 hash;
-	u32 minor_hash;
-	struct fscrypt_str crypto_buf;
-};
-
-#define FSTR_INIT(n, l)		{ .name = n, .len = l }
-#define FSTR_TO_QSTR(f)		QSTR_INIT((f)->name, (f)->len)
-#define fname_name(p)		((p)->disk_name.name)
-#define fname_len(p)		((p)->disk_name.len)
-
-/*
- * fscrypt superblock flags
- */
-#define FS_CFLG_OWN_PAGES (1U << 1)
-
-/*
- * crypto opertions for filesystems
- */
-struct fscrypt_operations {
-	unsigned int flags;
-	const char *key_prefix;
-	int (*get_context)(struct inode *, void *, size_t);
-	int (*set_context)(struct inode *, const void *, size_t, void *);
-	bool (*dummy_context)(struct inode *);
-	bool (*is_encrypted)(struct inode *);
-	bool (*empty_dir)(struct inode *);
-	unsigned (*max_namelen)(struct inode *);
-};
-
-/* Maximum value for the third parameter of fscrypt_operations.set_context(). */
-#define FSCRYPT_SET_CONTEXT_MAX_SIZE	28
-
-static inline bool fscrypt_dummy_context_enabled(struct inode *inode)
-{
-	if (inode->i_sb->s_cop->dummy_context &&
-				inode->i_sb->s_cop->dummy_context(inode))
-		return true;
-	return false;
-}
-
-static inline bool fscrypt_valid_enc_modes(u32 contents_mode,
-					u32 filenames_mode)
-{
-	if (contents_mode == FS_ENCRYPTION_MODE_AES_128_CBC &&
-	    filenames_mode == FS_ENCRYPTION_MODE_AES_128_CTS)
-		return true;
-
-	if (contents_mode == FS_ENCRYPTION_MODE_AES_256_XTS &&
-	    filenames_mode == FS_ENCRYPTION_MODE_AES_256_CTS)
-		return true;
-
-	return false;
-}
-
-static inline bool fscrypt_is_dot_dotdot(const struct qstr *str)
-{
-	if (str->len == 1 && str->name[0] == '.')
-		return true;
-
-	if (str->len == 2 && str->name[0] == '.' && str->name[1] == '.')
-		return true;
-
-	return false;
-}
-
-static inline struct page *fscrypt_control_page(struct page *page)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-	return ((struct fscrypt_ctx *)page_private(page))->w.control_page;
-#else
-	WARN_ON_ONCE(1);
-	return ERR_PTR(-EINVAL);
-#endif
-}
-
-static inline int fscrypt_has_encryption_key(const struct inode *inode)
-{
-#if IS_ENABLED(CONFIG_FS_ENCRYPTION)
-	return (inode->i_crypt_info != NULL);
-#else
-	return 0;
-#endif
-}
-
-#endif	/* _LINUX_FSCRYPT_COMMON_H */
diff --git a/include/linux/fscrypt_notsupp.h b/include/linux/fscrypt_notsupp.h
index ec406aed2f2f..63e58808519a 100644
--- a/include/linux/fscrypt_notsupp.h
+++ b/include/linux/fscrypt_notsupp.h
@@ -1,15 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fscrypt_notsupp.h
  *
  * This stubs out the fscrypt functions for filesystems configured without
  * encryption support.
+ *
+ * Do not include this file directly. Use fscrypt.h instead!
  */
+#ifndef _LINUX_FSCRYPT_H
+#error "Incorrect include of linux/fscrypt_notsupp.h!"
+#endif
 
 #ifndef _LINUX_FSCRYPT_NOTSUPP_H
 #define _LINUX_FSCRYPT_NOTSUPP_H
 
-#include <linux/fscrypt_common.h>
-
 /* crypto.c */
 static inline struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *inode,
 						  gfp_t gfp_flags)
@@ -97,7 +101,7 @@ static inline int fscrypt_setup_filename(struct inode *dir,
 					 const struct qstr *iname,
 					 int lookup, struct fscrypt_name *fname)
 {
-	if (dir->i_sb->s_cop->is_encrypted(dir))
+	if (IS_ENCRYPTED(dir))
 		return -EOPNOTSUPP;
 
 	memset(fname, 0, sizeof(struct fscrypt_name));
@@ -174,4 +178,34 @@ static inline int fscrypt_zeroout_range(const struct inode *inode, pgoff_t lblk,
 	return -EOPNOTSUPP;
 }
 
+/* hooks.c */
+
+static inline int fscrypt_file_open(struct inode *inode, struct file *filp)
+{
+	if (IS_ENCRYPTED(inode))
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static inline int __fscrypt_prepare_link(struct inode *inode,
+					 struct inode *dir)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int __fscrypt_prepare_rename(struct inode *old_dir,
+					   struct dentry *old_dentry,
+					   struct inode *new_dir,
+					   struct dentry *new_dentry,
+					   unsigned int flags)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int __fscrypt_prepare_lookup(struct inode *dir,
+					   struct dentry *dentry)
+{
+	return -EOPNOTSUPP;
+}
+
 #endif	/* _LINUX_FSCRYPT_NOTSUPP_H */
diff --git a/include/linux/fscrypt_supp.h b/include/linux/fscrypt_supp.h
index 32e2fcf13b01..cf9e9fc02f0a 100644
--- a/include/linux/fscrypt_supp.h
+++ b/include/linux/fscrypt_supp.h
@@ -1,14 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * fscrypt_supp.h
  *
- * This is included by filesystems configured with encryption support.
+ * Do not include this file directly. Use fscrypt.h instead!
  */
+#ifndef _LINUX_FSCRYPT_H
+#error "Incorrect include of linux/fscrypt_supp.h!"
+#endif
 
 #ifndef _LINUX_FSCRYPT_SUPP_H
 #define _LINUX_FSCRYPT_SUPP_H
 
-#include <linux/fscrypt_common.h>
-
 /* crypto.c */
 extern struct kmem_cache *fscrypt_info_cachep;
 extern struct fscrypt_ctx *fscrypt_get_ctx(const struct inode *, gfp_t);
@@ -142,4 +144,14 @@ extern void fscrypt_pullback_bio_page(struct page **, bool);
 extern int fscrypt_zeroout_range(const struct inode *, pgoff_t, sector_t,
 				 unsigned int);
 
+/* hooks.c */
+extern int fscrypt_file_open(struct inode *inode, struct file *filp);
+extern int __fscrypt_prepare_link(struct inode *inode, struct inode *dir);
+extern int __fscrypt_prepare_rename(struct inode *old_dir,
+				    struct dentry *old_dentry,
+				    struct inode *new_dir,
+				    struct dentry *new_dentry,
+				    unsigned int flags);
+extern int __fscrypt_prepare_lookup(struct inode *dir, struct dentry *dentry);
+
 #endif	/* _LINUX_FSCRYPT_SUPP_H */
diff --git a/include/linux/fsl/edac.h b/include/linux/fsl/edac.h
index 90d64d4ec1a9..148a297d7587 100644
--- a/include/linux/fsl/edac.h
+++ b/include/linux/fsl/edac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef FSL_EDAC_H
 #define FSL_EDAC_H
 
diff --git a/include/linux/fsnotify.h b/include/linux/fsnotify.h
index b78aa7ac77ce..bdaf22582f6e 100644
--- a/include/linux/fsnotify.h
+++ b/include/linux/fsnotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FS_NOTIFY_H
 #define _LINUX_FS_NOTIFY_H
 
diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h
index c6c69318752b..067d52e95f02 100644
--- a/include/linux/fsnotify_backend.h
+++ b/include/linux/fsnotify_backend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Filesystem access notification for Linux
  *
@@ -17,6 +18,7 @@
 #include <linux/types.h>
 #include <linux/atomic.h>
 #include <linux/user_namespace.h>
+#include <linux/refcount.h>
 
 /*
  * IN_* from inotfy.h lines up EXACTLY with FS_*, this is so we can easily
@@ -135,7 +137,7 @@ struct fsnotify_group {
 	 * inotify_init() and the refcnt will hit 0 only when that fd has been
 	 * closed.
 	 */
-	atomic_t refcnt;		/* things with interest in this group */
+	refcount_t refcnt;		/* things with interest in this group */
 
 	const struct fsnotify_ops *ops;	/* how this group handles things */
 
@@ -182,14 +184,13 @@ struct fsnotify_group {
 #endif
 #ifdef CONFIG_FANOTIFY
 		struct fanotify_group_private_data {
-#ifdef CONFIG_FANOTIFY_ACCESS_PERMISSIONS
 			/* allows a group to block waiting for a userspace response */
 			struct list_head access_list;
 			wait_queue_head_t access_waitq;
-#endif /* CONFIG_FANOTIFY_ACCESS_PERMISSIONS */
 			int f_flags;
 			unsigned int max_marks;
 			struct user_struct *user;
+			bool audit;
 		} fanotify_data;
 #endif /* CONFIG_FANOTIFY */
 	};
@@ -243,7 +244,7 @@ struct fsnotify_mark {
 	__u32 mask;
 	/* We hold one for presence in g_list. Also one ref for each 'thing'
 	 * in kernel that found and may be using this mark. */
-	atomic_t refcnt;
+	refcount_t refcnt;
 	/* Group this mark is for. Set on mark creation, stable until last ref
 	 * is dropped */
 	struct fsnotify_group *group;
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 2e028854bac7..e54d257983f2 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Ftrace header.  For implementation details beyond the random comments
  * scattered below, see: Documentation/trace/ftrace-design.txt
diff --git a/include/linux/ftrace_irq.h b/include/linux/ftrace_irq.h
index 4ec2c9b205f2..ccda97dc7f8b 100644
--- a/include/linux/ftrace_irq.h
+++ b/include/linux/ftrace_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FTRACE_IRQ_H
 #define _LINUX_FTRACE_IRQ_H
 
diff --git a/include/linux/futex.h b/include/linux/futex.h
index f36bfd26f998..c0fb9a24bbd2 100644
--- a/include/linux/futex.h
+++ b/include/linux/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_FUTEX_H
 #define _LINUX_FUTEX_H
 
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 0c35b6caf0f6..411a84c6c400 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -68,7 +68,7 @@ struct fwnode_reference_args {
  * @graph_parse_endpoint: Parse endpoint for port and endpoint id.
  */
 struct fwnode_operations {
-	void (*get)(struct fwnode_handle *fwnode);
+	struct fwnode_handle *(*get)(struct fwnode_handle *fwnode);
 	void (*put)(struct fwnode_handle *fwnode);
 	bool (*device_is_available)(const struct fwnode_handle *fwnode);
 	bool (*property_present)(const struct fwnode_handle *fwnode,
diff --git a/include/linux/gcd.h b/include/linux/gcd.h
index 69f5e8a01bad..cb572677fd7f 100644
--- a/include/linux/gcd.h
+++ b/include/linux/gcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GCD_H
 #define _GCD_H
 
diff --git a/include/linux/genetlink.h b/include/linux/genetlink.h
index a4c61cbce777..ecc2928e8046 100644
--- a/include/linux/genetlink.h
+++ b/include/linux/genetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GENERIC_NETLINK_H
 #define __LINUX_GENERIC_NETLINK_H
 
@@ -30,7 +31,7 @@ extern wait_queue_head_t genl_sk_destructing_waitq;
  * @p: The pointer to read, prior to dereferencing
  *
  * Return the value of the specified RCU-protected pointer, but omit
- * both the smp_read_barrier_depends() and the ACCESS_ONCE(), because
+ * both the smp_read_barrier_depends() and the READ_ONCE(), because
  * caller holds genl mutex.
  */
 #define genl_dereference(p)					\
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index ea652bfcd675..5144ebe046c9 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GENHD_H
 #define _LINUX_GENHD_H
 
@@ -140,6 +141,7 @@ struct hd_struct {
 #define GENHD_FL_NATIVE_CAPACITY		128
 #define GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE	256
 #define GENHD_FL_NO_PART_SCAN			512
+#define GENHD_FL_HIDDEN				1024
 
 enum {
 	DISK_EVENT_MEDIA_CHANGE			= 1 << 0, /* media changed */
@@ -206,6 +208,7 @@ struct gendisk {
 #endif	/* CONFIG_BLK_DEV_INTEGRITY */
 	int node_id;
 	struct badblocks *bb;
+	struct lockdep_map lockdep_map;
 };
 
 static inline struct gendisk *part_to_disk(struct hd_struct *part)
@@ -234,7 +237,7 @@ static inline bool disk_part_scan_enabled(struct gendisk *disk)
 
 static inline dev_t disk_devt(struct gendisk *disk)
 {
-	return disk_to_dev(disk)->devt;
+	return MKDEV(disk->major, disk->first_minor);
 }
 
 static inline dev_t part_devt(struct hd_struct *part)
@@ -242,6 +245,7 @@ static inline dev_t part_devt(struct hd_struct *part)
 	return part_to_dev(part)->devt;
 }
 
+extern struct hd_struct *__disk_get_part(struct gendisk *disk, int partno);
 extern struct hd_struct *disk_get_part(struct gendisk *disk, int partno);
 
 static inline void disk_put_part(struct hd_struct *part)
@@ -590,8 +594,7 @@ extern void __delete_partition(struct percpu_ref *);
 extern void delete_partition(struct gendisk *, int);
 extern void printk_all_partitions(void);
 
-extern struct gendisk *alloc_disk_node(int minors, int node_id);
-extern struct gendisk *alloc_disk(int minors);
+extern struct gendisk *__alloc_disk_node(int minors, int node_id);
 extern struct kobject *get_disk(struct gendisk *disk);
 extern void put_disk(struct gendisk *disk);
 extern void blk_register_region(dev_t devt, unsigned long range,
@@ -615,6 +618,24 @@ extern ssize_t part_fail_store(struct device *dev,
 			       const char *buf, size_t count);
 #endif /* CONFIG_FAIL_MAKE_REQUEST */
 
+#define alloc_disk_node(minors, node_id)				\
+({									\
+	static struct lock_class_key __key;				\
+	const char *__name;						\
+	struct gendisk *__disk;						\
+									\
+	__name = "(gendisk_completion)"#minors"("#node_id")";		\
+									\
+	__disk = __alloc_disk_node(minors, node_id);			\
+									\
+	if (__disk)							\
+		lockdep_init_map(&__disk->lockdep_map, __name, &__key, 0); \
+									\
+	__disk;								\
+})
+
+#define alloc_disk(minors) alloc_disk_node(minors, NUMA_NO_NODE)
+
 static inline int hd_ref_init(struct hd_struct *part)
 {
 	if (percpu_ref_init(&part->ref, __delete_partition, 0,
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 377257d8f7e3..604967609e55 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GENL_MAGIC_FUNC_H
 #define GENL_MAGIC_FUNC_H
 
diff --git a/include/linux/genl_magic_struct.h b/include/linux/genl_magic_struct.h
index 6270a56e5edc..5972e4969197 100644
--- a/include/linux/genl_magic_struct.h
+++ b/include/linux/genl_magic_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GENL_MAGIC_STRUCT_H
 #define GENL_MAGIC_STRUCT_H
 
diff --git a/include/linux/getcpu.h b/include/linux/getcpu.h
index c7372d7a97be..c304dcdb4eac 100644
--- a/include/linux/getcpu.h
+++ b/include/linux/getcpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GETCPU_H
 #define _LINUX_GETCPU_H 1
 
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index bcfb9f7c46f5..710143741eb5 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GFP_H
 #define __LINUX_GFP_H
 
@@ -288,8 +289,6 @@ struct vm_area_struct;
 #define GFP_NOWAIT	(__GFP_KSWAPD_RECLAIM)
 #define GFP_NOIO	(__GFP_RECLAIM)
 #define GFP_NOFS	(__GFP_RECLAIM | __GFP_IO)
-#define GFP_TEMPORARY	(__GFP_RECLAIM | __GFP_IO | __GFP_FS | \
-			 __GFP_RECLAIMABLE)
 #define GFP_USER	(__GFP_RECLAIM | __GFP_IO | __GFP_FS | __GFP_HARDWALL)
 #define GFP_DMA		__GFP_DMA
 #define GFP_DMA32	__GFP_DMA32
diff --git a/include/linux/glob.h b/include/linux/glob.h
index 861d8347d08e..861327b33e41 100644
--- a/include/linux/glob.h
+++ b/include/linux/glob.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_GLOB_H
 #define _LINUX_GLOB_H
 
diff --git a/include/linux/goldfish.h b/include/linux/goldfish.h
index 93e080b39cf6..2835c150c3ff 100644
--- a/include/linux/goldfish.h
+++ b/include/linux/goldfish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GOLDFISH_H
 #define __LINUX_GOLDFISH_H
 
diff --git a/include/linux/gpio-fan.h b/include/linux/gpio-fan.h
deleted file mode 100644
index 096659169215..000000000000
--- a/include/linux/gpio-fan.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * include/linux/gpio-fan.h
- *
- * Platform data structure for GPIO fan driver
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-
-#ifndef __LINUX_GPIO_FAN_H
-#define __LINUX_GPIO_FAN_H
-
-struct gpio_fan_alarm {
-	unsigned	gpio;
-	unsigned	active_low;
-};
-
-struct gpio_fan_speed {
-	int rpm;
-	int ctrl_val;
-};
-
-struct gpio_fan_platform_data {
-	int			num_ctrl;
-	unsigned		*ctrl;	/* fan control GPIOs. */
-	struct gpio_fan_alarm	*alarm;	/* fan alarm GPIO. */
-	/*
-	 * Speed conversion array: rpm from/to GPIO bit field.
-	 * This array _must_ be sorted in ascending rpm order.
-	 */
-	int			num_speed;
-	struct gpio_fan_speed	*speed;
-};
-
-#endif /* __LINUX_GPIO_FAN_H */
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
index d90ebbe02ca4..1e1fa0160480 100644
--- a/include/linux/gpio-pxa.h
+++ b/include/linux/gpio-pxa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GPIO_PXA_H
 #define __GPIO_PXA_H
 
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index d12b5d566e4b..8ef7fc0ce0f0 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_H
 #define __LINUX_GPIO_H
 
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 8f702fcbe485..c4a350d83578 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_CONSUMER_H
 #define __LINUX_GPIO_CONSUMER_H
 
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index c97f8325e8bf..424e5139ff10 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_DRIVER_H
 #define __LINUX_GPIO_DRIVER_H
 
diff --git a/include/linux/gpio/gpio-reg.h b/include/linux/gpio/gpio-reg.h
index 90e0b9060e6d..5c6efd394cb0 100644
--- a/include/linux/gpio/gpio-reg.h
+++ b/include/linux/gpio/gpio-reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GPIO_REG_H
 #define GPIO_REG_H
 
diff --git a/include/linux/gpio/machine.h b/include/linux/gpio/machine.h
index ba4ccfd900f9..b7225369e568 100644
--- a/include/linux/gpio/machine.h
+++ b/include/linux/gpio/machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GPIO_MACHINE_H
 #define __LINUX_GPIO_MACHINE_H
 
diff --git a/include/linux/gpio_keys.h b/include/linux/gpio_keys.h
index 0b71024c082c..d06bf77400f1 100644
--- a/include/linux/gpio_keys.h
+++ b/include/linux/gpio_keys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GPIO_KEYS_H
 #define _GPIO_KEYS_H
 
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index c683996110b1..0fbbcdf0c178 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_HARDIRQ_H
 #define LINUX_HARDIRQ_H
 
diff --git a/include/linux/hashtable.h b/include/linux/hashtable.h
index 082dc1bd0801..417d2c4bc60d 100644
--- a/include/linux/hashtable.h
+++ b/include/linux/hashtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Statically sized hash table implementation
  * (C) 2012  Sasha Levin <levinsasha928@gmail.com>
diff --git a/include/linux/hdlcdrv.h b/include/linux/hdlcdrv.h
index be3be25bb898..d4d633a49d36 100644
--- a/include/linux/hdlcdrv.h
+++ b/include/linux/hdlcdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * hdlcdrv.h  -- HDLC packet radio network driver.
  * The Linux soundcard driver for 1200 baud and 9600 baud packet radio
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index fc7aae64dcde..331dc377c275 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -231,6 +231,7 @@ struct hid_sensor_common {
 	unsigned usage_id;
 	atomic_t data_ready;
 	atomic_t user_requested_state;
+	atomic_t runtime_pm_enable;
 	int poll_interval;
 	int raw_hystersis;
 	int latency_ms;
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index bb3f3297062a..776f90f3a1cd 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HIGHMEM_H
 #define _LINUX_HIGHMEM_H
 
diff --git a/include/linux/highuid.h b/include/linux/highuid.h
index 434e56246f67..50d383fd674d 100644
--- a/include/linux/highuid.h
+++ b/include/linux/highuid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HIGHUID_H
 #define _LINUX_HIGHUID_H
 
diff --git a/include/linux/hpet.h b/include/linux/hpet.h
index 9427ab4e01c3..8604564b985d 100644
--- a/include/linux/hpet.h
+++ b/include/linux/hpet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	__HPET__
 #define	__HPET__ 1
 
diff --git a/include/linux/htcpld.h b/include/linux/htcpld.h
index ab3f6cb4dddc..842fce69ac06 100644
--- a/include/linux/htcpld.h
+++ b/include/linux/htcpld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_HTCPLD_H
 #define __LINUX_HTCPLD_H
 
diff --git a/include/linux/htirq.h b/include/linux/htirq.h
index d4a527e58434..127c39d815ba 100644
--- a/include/linux/htirq.h
+++ b/include/linux/htirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_HTIRQ_H
 #define LINUX_HTIRQ_H
 
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 14bc21c2ee7f..a8a126259bc4 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HUGE_MM_H
 #define _LINUX_HUGE_MM_H
 
@@ -221,7 +222,7 @@ extern struct page *huge_zero_page;
 
 static inline bool is_huge_zero_page(struct page *page)
 {
-	return ACCESS_ONCE(huge_zero_page) == page;
+	return READ_ONCE(huge_zero_page) == page;
 }
 
 static inline bool is_huge_zero_pmd(pmd_t pmd)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 8bbbd37ab105..fbf5b31d47ee 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HUGETLB_H
 #define _LINUX_HUGETLB_H
 
diff --git a/include/linux/hugetlb_inline.h b/include/linux/hugetlb_inline.h
index a4e7ca0f3585..0660a03d37d9 100644
--- a/include/linux/hugetlb_inline.h
+++ b/include/linux/hugetlb_inline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HUGETLB_INLINE_H
 #define _LINUX_HUGETLB_INLINE_H
 
diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
index 0464c85e63fd..cf045885a499 100644
--- a/include/linux/hw_breakpoint.h
+++ b/include/linux/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HW_BREAKPOINT_H
 #define _LINUX_HW_BREAKPOINT_H
 
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index c458d7b7ad19..6431087816ba 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1403,7 +1403,7 @@ extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *icmsghdrp, u8 *buf,
 				const int *srv_version, int srv_vercnt,
 				int *nego_fw_version, int *nego_srv_version);
 
-void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
+void hv_process_channel_removal(u32 relid);
 
 void vmbus_setevent(struct vmbus_channel *channel);
 /*
diff --git a/include/linux/hypervisor.h b/include/linux/hypervisor.h
index 3fa5ef2b3759..b19563f9a8eb 100644
--- a/include/linux/hypervisor.h
+++ b/include/linux/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_HYPEVISOR_H
 #define __LINUX_HYPEVISOR_H
 
@@ -6,8 +7,12 @@
  *		Juergen Gross <jgross@suse.com>
  */
 
-#ifdef CONFIG_HYPERVISOR_GUEST
-#include <asm/hypervisor.h>
+#ifdef CONFIG_X86
+#include <asm/x86_init.h>
+static inline void hypervisor_pin_vcpu(int cpu)
+{
+	x86_platform.hyper.pin_vcpu(cpu);
+}
 #else
 static inline void hypervisor_pin_vcpu(int cpu)
 {
diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index a3c3ecd59f08..d03071732db4 100644
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_I2C_ALGO_PCA_H
 #define _LINUX_I2C_ALGO_PCA_H
 
diff --git a/include/linux/i2c-omap.h b/include/linux/i2c-omap.h
index babe0cf6d56b..3444265ee8ee 100644
--- a/include/linux/i2c-omap.h
+++ b/include/linux/i2c-omap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __I2C_OMAP_H__
 #define __I2C_OMAP_H__
 
diff --git a/include/linux/i2c-pca-platform.h b/include/linux/i2c-pca-platform.h
index aba33759dec4..0e5f7c77d1d8 100644
--- a/include/linux/i2c-pca-platform.h
+++ b/include/linux/i2c-pca-platform.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef I2C_PCA9564_PLATFORM_H
 #define I2C_PCA9564_PLATFORM_H
 
diff --git a/include/linux/i2c-pxa.h b/include/linux/i2c-pxa.h
index 41dcdfe7f625..a897e2b507b6 100644
--- a/include/linux/i2c-pxa.h
+++ b/include/linux/i2c-pxa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_I2C_ALGO_PXA_H
 #define _LINUX_I2C_ALGO_PXA_H
 
diff --git a/include/linux/i7300_idle.h b/include/linux/i7300_idle.h
index 1587b7dec505..4dbe651f71f5 100644
--- a/include/linux/i7300_idle.h
+++ b/include/linux/i7300_idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef I7300_IDLE_H
 #define I7300_IDLE_H
diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h
index 57086e9fc64c..a8f888976137 100644
--- a/include/linux/icmpv6.h
+++ b/include/linux/icmpv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ICMPV6_H
 #define _LINUX_ICMPV6_H
 
diff --git a/include/linux/ide.h b/include/linux/ide.h
index dc152e4b7f73..771989d25ef8 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IDE_H
 #define _IDE_H
 /*
@@ -1211,7 +1212,7 @@ extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout);
 
 extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout);
 
-extern void ide_timer_expiry(unsigned long);
+extern void ide_timer_expiry(struct timer_list *t);
 extern irqreturn_t ide_intr(int irq, void *dev_id);
 extern void do_ide_request(struct request_queue *);
 extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq);
diff --git a/include/linux/if_link.h b/include/linux/if_link.h
index 0b17c585b5cd..4c54611e03e9 100644
--- a/include/linux/if_link.h
+++ b/include/linux/if_link.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IF_LINK_H
 #define _LINUX_IF_LINK_H
 
diff --git a/include/linux/if_ltalk.h b/include/linux/if_ltalk.h
index 81e434c50790..4cc1c0b77870 100644
--- a/include/linux/if_ltalk.h
+++ b/include/linux/if_ltalk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_LTALK_H
 #define __LINUX_LTALK_H
 
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index c9ec1343d187..0e2c60efad2d 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IF_MACVLAN_H
 #define _LINUX_IF_MACVLAN_H
 
diff --git a/include/linux/if_phonet.h b/include/linux/if_phonet.h
index bbcdb0a767d8..3b5c60da2e2a 100644
--- a/include/linux/if_phonet.h
+++ b/include/linux/if_phonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File: if_phonet.h
  *
diff --git a/include/linux/if_tap.h b/include/linux/if_tap.h
index 4837157da0dc..13edf19ce9fb 100644
--- a/include/linux/if_tap.h
+++ b/include/linux/if_tap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IF_TAP_H_
 #define _LINUX_IF_TAP_H_
 
@@ -73,8 +74,8 @@ void tap_del_queues(struct tap_dev *tap);
 int tap_get_minor(dev_t major, struct tap_dev *tap);
 void tap_free_minor(dev_t major, struct tap_dev *tap);
 int tap_queue_resize(struct tap_dev *tap);
-int tap_create_cdev(struct cdev *tap_cdev,
-		    dev_t *tap_major, const char *device_name);
+int tap_create_cdev(struct cdev *tap_cdev, dev_t *tap_major,
+		    const char *device_name, struct module *module);
 void tap_destroy_cdev(dev_t major, struct cdev *tap_cdev);
 
 #endif /*_LINUX_IF_TAP_H_*/
diff --git a/include/linux/if_team.h b/include/linux/if_team.h
index 30294603526f..d95cae09dea0 100644
--- a/include/linux/if_team.h
+++ b/include/linux/if_team.h
@@ -247,7 +247,7 @@ static inline struct team_port *team_get_port_by_index(struct team *team,
 
 static inline int team_num_to_port_index(struct team *team, unsigned int num)
 {
-	int en_port_count = ACCESS_ONCE(team->en_port_count);
+	int en_port_count = READ_ONCE(team->en_port_count);
 
 	if (unlikely(!en_port_count))
 		return 0;
diff --git a/include/linux/if_tunnel.h b/include/linux/if_tunnel.h
index 712710bc0580..26606523eca4 100644
--- a/include/linux/if_tunnel.h
+++ b/include/linux/if_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IF_TUNNEL_H_
 #define _IF_TUNNEL_H_
 
diff --git a/include/linux/ihex.h b/include/linux/ihex.h
index 31d8629e75a1..75c194391869 100644
--- a/include/linux/ihex.h
+++ b/include/linux/ihex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Compact binary representation of ihex records. Some devices need their
  * firmware loaded in strange orders rather than a single big blob, but
diff --git a/include/linux/iio/adc/ad_sigma_delta.h b/include/linux/iio/adc/ad_sigma_delta.h
index 5ba430cc9a87..1fc7abd28b0b 100644
--- a/include/linux/iio/adc/ad_sigma_delta.h
+++ b/include/linux/iio/adc/ad_sigma_delta.h
@@ -111,6 +111,9 @@ int ad_sd_write_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 int ad_sd_read_reg(struct ad_sigma_delta *sigma_delta, unsigned int reg,
 	unsigned int size, unsigned int *val);
 
+int ad_sd_reset(struct ad_sigma_delta *sigma_delta,
+	unsigned int reset_length);
+
 int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
 	const struct iio_chan_spec *chan, int *val);
 int ad_sd_calibrate_all(struct ad_sigma_delta *sigma_delta,
diff --git a/include/linux/iio/buffer_impl.h b/include/linux/iio/buffer_impl.h
index 8daba198fafa..b9e22b7e2f28 100644
--- a/include/linux/iio/buffer_impl.h
+++ b/include/linux/iio/buffer_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IIO_BUFFER_GENERIC_IMPL_H_
 #define _IIO_BUFFER_GENERIC_IMPL_H_
 #include <linux/sysfs.h>
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 7b0fa8b5c120..f9bd6e8ab138 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -131,28 +131,39 @@ struct st_sensor_das {
 };
 
 /**
+ * struct st_sensor_int_drdy - ST sensor device drdy line parameters
+ * @addr: address of INT drdy register.
+ * @mask: mask to enable drdy line.
+ * @addr_od: address to enable/disable Open Drain on the INT line.
+ * @mask_od: mask to enable/disable Open Drain on the INT line.
+ */
+struct st_sensor_int_drdy {
+	u8 addr;
+	u8 mask;
+	u8 addr_od;
+	u8 mask_od;
+};
+
+/**
  * struct st_sensor_data_ready_irq - ST sensor device data-ready interrupt
- * @addr: address of the register.
- * @mask_int1: mask to enable/disable IRQ on INT1 pin.
- * @mask_int2: mask to enable/disable IRQ on INT2 pin.
+ * struct int1 - data-ready configuration register for INT1 pin.
+ * struct int2 - data-ready configuration register for INT2 pin.
  * @addr_ihl: address to enable/disable active low on the INT lines.
  * @mask_ihl: mask to enable/disable active low on the INT lines.
- * @addr_od: address to enable/disable Open Drain on the INT lines.
- * @mask_od: mask to enable/disable Open Drain on the INT lines.
- * @addr_stat_drdy: address to read status of DRDY (data ready) interrupt
+ * struct stat_drdy - status register of DRDY (data ready) interrupt.
  * struct ig1 - represents the Interrupt Generator 1 of sensors.
  * @en_addr: address of the enable ig1 register.
  * @en_mask: mask to write the on/off value for enable.
  */
 struct st_sensor_data_ready_irq {
-	u8 addr;
-	u8 mask_int1;
-	u8 mask_int2;
+	struct st_sensor_int_drdy int1;
+	struct st_sensor_int_drdy int2;
 	u8 addr_ihl;
 	u8 mask_ihl;
-	u8 addr_od;
-	u8 mask_od;
-	u8 addr_stat_drdy;
+	struct {
+		u8 addr;
+		u8 mask;
+	} stat_drdy;
 	struct {
 		u8 en_addr;
 		u8 en_mask;
diff --git a/include/linux/iio/dac/ad5421.h b/include/linux/iio/dac/ad5421.h
index 8fd8f057a890..d8ee9a7f8a6a 100644
--- a/include/linux/iio/dac/ad5421.h
+++ b/include/linux/iio/dac/ad5421.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_DAC_AD5421_H__
 #define __IIO_DAC_AD5421_H__
 
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index c380daa40c0e..20b61347ea58 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -365,12 +365,9 @@ unsigned int iio_get_time_res(const struct iio_dev *indio_dev);
 #define INDIO_MAX_RAW_ELEMENTS		4
 
 struct iio_trigger; /* forward declaration */
-struct iio_dev;
 
 /**
  * struct iio_info - constant information about device
- * @driver_module:	module structure used to ensure correct
- *			ownership of chrdevs etc
  * @event_attrs:	event control attributes
  * @attrs:		general purpose device attributes
  * @read_raw:		function to request a value from the device.
@@ -425,7 +422,6 @@ struct iio_dev;
  *			were flushed and there was an error.
  **/
 struct iio_info {
-	struct module			*driver_module;
 	const struct attribute_group	*event_attrs;
 	const struct attribute_group	*attrs;
 
@@ -518,6 +514,7 @@ struct iio_buffer_setup_ops {
 /**
  * struct iio_dev - industrial I/O device
  * @id:			[INTERN] used to identify device internally
+ * @driver_module:	[INTERN] used to make it harder to undercut users
  * @modes:		[DRIVER] operating modes supported by device
  * @currentmode:	[DRIVER] current operating mode
  * @dev:		[DRIVER] device structure, should be assigned a parent
@@ -558,6 +555,7 @@ struct iio_buffer_setup_ops {
  */
 struct iio_dev {
 	int				id;
+	struct module			*driver_module;
 
 	int				modes;
 	int				currentmode;
@@ -604,9 +602,34 @@ struct iio_dev {
 
 const struct iio_chan_spec
 *iio_find_channel_from_si(struct iio_dev *indio_dev, int si);
-int iio_device_register(struct iio_dev *indio_dev);
+/**
+ * iio_device_register() - register a device with the IIO subsystem
+ * @indio_dev:		Device structure filled by the device driver
+ **/
+#define iio_device_register(iio_dev) \
+	__iio_device_register((iio_dev), THIS_MODULE)
+int __iio_device_register(struct iio_dev *indio_dev, struct module *this_mod);
 void iio_device_unregister(struct iio_dev *indio_dev);
-int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev);
+/**
+ * devm_iio_device_register - Resource-managed iio_device_register()
+ * @dev:	Device to allocate iio_dev for
+ * @indio_dev:	Device structure filled by the device driver
+ *
+ * Managed iio_device_register.  The IIO device registered with this
+ * function is automatically unregistered on driver detach. This function
+ * calls iio_device_register() internally. Refer to that function for more
+ * information.
+ *
+ * If an iio_dev registered with this function needs to be unregistered
+ * separately, devm_iio_device_unregister() must be used.
+ *
+ * RETURNS:
+ * 0 on success, negative error number on failure.
+ */
+#define devm_iio_device_register(dev, indio_dev) \
+	__devm_iio_device_register((dev), (indio_dev), THIS_MODULE);
+int __devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev,
+			       struct module *this_mod);
 void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev);
 int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp);
 int iio_device_claim_direct_mode(struct iio_dev *indio_dev);
diff --git a/include/linux/iio/kfifo_buf.h b/include/linux/iio/kfifo_buf.h
index 027cfa9c3703..764659e01b68 100644
--- a/include/linux/iio/kfifo_buf.h
+++ b/include/linux/iio/kfifo_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_IIO_KFIFO_BUF_H__
 #define __LINUX_IIO_KFIFO_BUF_H__
 
diff --git a/include/linux/iio/magnetometer/ak8975.h b/include/linux/iio/magnetometer/ak8975.h
index c8400959d197..ac9366f807cb 100644
--- a/include/linux/iio/magnetometer/ak8975.h
+++ b/include/linux/iio/magnetometer/ak8975.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_MAGNETOMETER_AK8975_H__
 #define __IIO_MAGNETOMETER_AK8975_H__
 
diff --git a/include/linux/iio/sw_device.h b/include/linux/iio/sw_device.h
index fa7931933067..8642b91a7577 100644
--- a/include/linux/iio/sw_device.h
+++ b/include/linux/iio/sw_device.h
@@ -60,7 +60,7 @@ void iio_sw_device_type_configfs_unregister(struct iio_sw_device_type *dt);
 static inline
 void iio_swd_group_init_type_name(struct iio_sw_device *d,
 				  const char *name,
-				  struct config_item_type *type)
+				  const struct config_item_type *type)
 {
 #if IS_ENABLED(CONFIG_CONFIGFS_FS)
 	config_group_init_type_name(&d->group, name, type);
diff --git a/include/linux/iio/sw_trigger.h b/include/linux/iio/sw_trigger.h
index c97eab67558f..0c43738a9e24 100644
--- a/include/linux/iio/sw_trigger.h
+++ b/include/linux/iio/sw_trigger.h
@@ -60,7 +60,7 @@ void iio_sw_trigger_type_configfs_unregister(struct iio_sw_trigger_type *tt);
 static inline
 void iio_swt_group_init_type_name(struct iio_sw_trigger *t,
 				  const char *name,
-				  struct config_item_type *type)
+				  const struct config_item_type *type)
 {
 #if IS_ENABLED(CONFIG_CONFIGFS_FS)
 	config_group_init_type_name(&t->group, name, type);
diff --git a/include/linux/iio/trigger.h b/include/linux/iio/trigger.h
index 7142d8d6e470..7d5e44518379 100644
--- a/include/linux/iio/trigger.h
+++ b/include/linux/iio/trigger.h
@@ -23,7 +23,6 @@ struct iio_trigger;
 
 /**
  * struct iio_trigger_ops - operations structure for an iio_trigger.
- * @owner:		used to monitor usage count of the trigger.
  * @set_trigger_state:	switch on/off the trigger on demand
  * @try_reenable:	function to reenable the trigger when the
  *			use count is zero (may be NULL)
@@ -34,7 +33,6 @@ struct iio_trigger;
  * instances of a given device.
  **/
 struct iio_trigger_ops {
-	struct module *owner;
 	int (*set_trigger_state)(struct iio_trigger *trig, bool state);
 	int (*try_reenable)(struct iio_trigger *trig);
 	int (*validate_device)(struct iio_trigger *trig,
@@ -62,6 +60,7 @@ struct iio_trigger_ops {
  **/
 struct iio_trigger {
 	const struct iio_trigger_ops	*ops;
+	struct module			*owner;
 	int				id;
 	const char			*name;
 	struct device			dev;
@@ -87,14 +86,14 @@ static inline struct iio_trigger *to_iio_trigger(struct device *d)
 
 static inline void iio_trigger_put(struct iio_trigger *trig)
 {
-	module_put(trig->ops->owner);
+	module_put(trig->owner);
 	put_device(&trig->dev);
 }
 
 static inline struct iio_trigger *iio_trigger_get(struct iio_trigger *trig)
 {
 	get_device(&trig->dev);
-	__module_get(trig->ops->owner);
+	__module_get(trig->owner);
 
 	return trig;
 }
@@ -127,10 +126,16 @@ static inline void *iio_trigger_get_drvdata(struct iio_trigger *trig)
  * iio_trigger_register() - register a trigger with the IIO core
  * @trig_info:	trigger to be registered
  **/
-int iio_trigger_register(struct iio_trigger *trig_info);
-
-int devm_iio_trigger_register(struct device *dev,
-			      struct iio_trigger *trig_info);
+#define iio_trigger_register(trig_info) \
+	__iio_trigger_register((trig_info), THIS_MODULE)
+int __iio_trigger_register(struct iio_trigger *trig_info,
+			   struct module *this_mod);
+
+#define devm_iio_trigger_register(dev, trig_info) \
+	__devm_iio_trigger_register((dev), (trig_info), THIS_MODULE)
+int __devm_iio_trigger_register(struct device *dev,
+				struct iio_trigger *trig_info,
+				struct module *this_mod);
 
 /**
  * iio_trigger_unregister() - unregister a trigger from the core
diff --git a/include/linux/iio/triggered_buffer.h b/include/linux/iio/triggered_buffer.h
index 30145616773d..238ad30ce166 100644
--- a/include/linux/iio/triggered_buffer.h
+++ b/include/linux/iio/triggered_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IIO_TRIGGERED_BUFFER_H_
 #define _LINUX_IIO_TRIGGERED_BUFFER_H_
 
diff --git a/include/linux/iio/triggered_event.h b/include/linux/iio/triggered_event.h
index 8fe8537085bb..13250fd99745 100644
--- a/include/linux/iio/triggered_event.h
+++ b/include/linux/iio/triggered_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IIO_TRIGGERED_EVENT_H_
 #define _LINUX_IIO_TRIGGERED_EVENT_H_
 
diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
index ee251c585854..39faaaf843e1 100644
--- a/include/linux/inet_diag.h
+++ b/include/linux/inet_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INET_DIAG_H_
 #define _INET_DIAG_H_ 1
 
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index fb3f809e34e4..5058f061cb2b 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INETDEVICE_H
 #define _LINUX_INETDEVICE_H
 
diff --git a/include/linux/init.h b/include/linux/init.h
index 94769d687cf0..f38b993edacb 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INIT_H
 #define _LINUX_INIT_H
 
diff --git a/include/linux/init_ohci1394_dma.h b/include/linux/init_ohci1394_dma.h
index 3c03a4bba5e4..228afca432ac 100644
--- a/include/linux/init_ohci1394_dma.h
+++ b/include/linux/init_ohci1394_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT
 extern int __initdata init_ohci1394_dma_early;
 extern void __init init_ohci1394_dma_on_all_controllers(void);
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 3c07ace5b431..8062e6cc607c 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX__INIT_TASK_H
 #define _LINUX__INIT_TASK_H
 
diff --git a/include/linux/initrd.h b/include/linux/initrd.h
index bc67b767f9ce..84b423044088 100644
--- a/include/linux/initrd.h
+++ b/include/linux/initrd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #define INITRD_MINOR 250 /* shouldn't collide with /dev/ram* too soon ... */
 
diff --git a/include/linux/inotify.h b/include/linux/inotify.h
index 23aede0b5843..44f9ffe72c87 100644
--- a/include/linux/inotify.h
+++ b/include/linux/inotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Inode based directory notification for Linux
  *
diff --git a/include/linux/input.h b/include/linux/input.h
index a65e3b24fb18..7c7516eb7d76 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -234,6 +234,10 @@ struct input_dev {
 #error "SW_MAX and INPUT_DEVICE_ID_SW_MAX do not match"
 #endif
 
+#if INPUT_PROP_MAX != INPUT_DEVICE_ID_PROP_MAX
+#error "INPUT_PROP_MAX and INPUT_DEVICE_ID_PROP_MAX do not match"
+#endif
+
 #define INPUT_DEVICE_ID_MATCH_DEVICE \
 	(INPUT_DEVICE_ID_MATCH_BUS | INPUT_DEVICE_ID_MATCH_VENDOR | INPUT_DEVICE_ID_MATCH_PRODUCT)
 #define INPUT_DEVICE_ID_MATCH_DEVICE_AND_VERSION \
@@ -469,6 +473,9 @@ int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke);
 int input_set_keycode(struct input_dev *dev,
 		      const struct input_keymap_entry *ke);
 
+bool input_match_device_id(const struct input_dev *dev,
+			   const struct input_device_id *id);
+
 void input_enable_softrepeat(struct input_dev *dev, int delay, int period);
 
 extern struct class input_class;
@@ -529,6 +536,7 @@ int input_ff_event(struct input_dev *dev, unsigned int type, unsigned int code,
 
 int input_ff_upload(struct input_dev *dev, struct ff_effect *effect, struct file *file);
 int input_ff_erase(struct input_dev *dev, int effect_id, struct file *file);
+int input_ff_flush(struct input_dev *dev, struct file *file);
 
 int input_ff_create_memless(struct input_dev *dev, void *data,
 		int (*play_effect)(struct input_dev *, void *, struct ff_effect *));
diff --git a/include/linux/input/cy8ctmg110_pdata.h b/include/linux/input/cy8ctmg110_pdata.h
index 09522cb59910..77582ae1745a 100644
--- a/include/linux/input/cy8ctmg110_pdata.h
+++ b/include/linux/input/cy8ctmg110_pdata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CY8CTMG110_PDATA_H
 #define _LINUX_CY8CTMG110_PDATA_H
 
diff --git a/include/linux/input/gp2ap002a00f.h b/include/linux/input/gp2ap002a00f.h
index aad2fd44a61a..3614a13a8297 100644
--- a/include/linux/input/gp2ap002a00f.h
+++ b/include/linux/input/gp2ap002a00f.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GP2AP002A00F_H_
 #define _GP2AP002A00F_H_
 
diff --git a/include/linux/input/gpio_tilt.h b/include/linux/input/gpio_tilt.h
index c1cc52d380e0..f9d932476a80 100644
--- a/include/linux/input/gpio_tilt.h
+++ b/include/linux/input/gpio_tilt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INPUT_GPIO_TILT_H
 #define _INPUT_GPIO_TILT_H
 
diff --git a/include/linux/input/ili210x.h b/include/linux/input/ili210x.h
index a5471245a13c..b76e7c1404cd 100644
--- a/include/linux/input/ili210x.h
+++ b/include/linux/input/ili210x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ILI210X_H
 #define _ILI210X_H
 
diff --git a/include/linux/input/matrix_keypad.h b/include/linux/input/matrix_keypad.h
index 6174733a57eb..9476768c3b90 100644
--- a/include/linux/input/matrix_keypad.h
+++ b/include/linux/input/matrix_keypad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MATRIX_KEYPAD_H
 #define _MATRIX_KEYPAD_H
 
diff --git a/include/linux/input/sh_keysc.h b/include/linux/input/sh_keysc.h
index 5d253cd93691..b3c4f3b6679c 100644
--- a/include/linux/input/sh_keysc.h
+++ b/include/linux/input/sh_keysc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_KEYSC_H__
 #define __SH_KEYSC_H__
 
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 59ba11661b6e..baeb872283d9 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* interrupt.h */
 #ifndef _LINUX_INTERRUPT_H
 #define _LINUX_INTERRUPT_H
diff --git a/include/linux/interval_tree.h b/include/linux/interval_tree.h
index 202ee1283f4b..288c26f50732 100644
--- a/include/linux/interval_tree.h
+++ b/include/linux/interval_tree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INTERVAL_TREE_H
 #define _LINUX_INTERVAL_TREE_H
 
diff --git a/include/linux/io-64-nonatomic-hi-lo.h b/include/linux/io-64-nonatomic-hi-lo.h
index defcc4644ce3..862d786a904f 100644
--- a/include/linux/io-64-nonatomic-hi-lo.h
+++ b/include/linux/io-64-nonatomic-hi-lo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IO_64_NONATOMIC_HI_LO_H_
 #define _LINUX_IO_64_NONATOMIC_HI_LO_H_
 
diff --git a/include/linux/io-64-nonatomic-lo-hi.h b/include/linux/io-64-nonatomic-lo-hi.h
index 084461a4e5ab..d042e7bb5adb 100644
--- a/include/linux/io-64-nonatomic-lo-hi.h
+++ b/include/linux/io-64-nonatomic-lo-hi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IO_64_NONATOMIC_LO_HI_H_
 #define _LINUX_IO_64_NONATOMIC_LO_HI_H_
 
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h
index df38db2ef45b..dba15ca8e60b 100644
--- a/include/linux/iocontext.h
+++ b/include/linux/iocontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IOCONTEXT_H
 #define IOCONTEXT_H
 
diff --git a/include/linux/iomap.h b/include/linux/iomap.h
index f64dc6ce5161..ca10767ab73d 100644
--- a/include/linux/iomap.h
+++ b/include/linux/iomap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_IOMAP_H
 #define LINUX_IOMAP_H 1
 
@@ -15,27 +16,29 @@ struct vm_fault;
  */
 #define IOMAP_HOLE	0x01	/* no blocks allocated, need allocation */
 #define IOMAP_DELALLOC	0x02	/* delayed allocation blocks */
-#define IOMAP_MAPPED	0x03	/* blocks allocated @blkno */
-#define IOMAP_UNWRITTEN	0x04	/* blocks allocated @blkno in unwritten state */
+#define IOMAP_MAPPED	0x03	/* blocks allocated at @addr */
+#define IOMAP_UNWRITTEN	0x04	/* blocks allocated at @addr in unwritten state */
 
 /*
  * Flags for all iomap mappings:
  */
-#define IOMAP_F_NEW	0x01	/* blocks have been newly allocated */
+#define IOMAP_F_NEW		0x01	/* blocks have been newly allocated */
+#define IOMAP_F_BOUNDARY	0x02	/* mapping ends at metadata boundary */
 
 /*
  * Flags that only need to be reported for IOMAP_REPORT requests:
  */
-#define IOMAP_F_MERGED	0x10	/* contains multiple blocks/extents */
-#define IOMAP_F_SHARED	0x20	/* block shared with another file */
+#define IOMAP_F_MERGED		0x10	/* contains multiple blocks/extents */
+#define IOMAP_F_SHARED		0x20	/* block shared with another file */
+#define IOMAP_F_DATA_INLINE	0x40	/* data inline in the inode */
 
 /*
- * Magic value for blkno:
+ * Magic value for addr:
  */
-#define IOMAP_NULL_BLOCK -1LL	/* blkno is not valid */
+#define IOMAP_NULL_ADDR -1ULL	/* addr is not valid */
 
 struct iomap {
-	sector_t		blkno;	/* 1st sector of mapping, 512b units */
+	u64			addr; /* disk offset of mapping, bytes */
 	loff_t			offset;	/* file offset of mapping, bytes */
 	u64			length;	/* length of mapping, bytes */
 	u16			type;	/* type of mapping */
diff --git a/include/linux/iommu-common.h b/include/linux/iommu-common.h
index 376a27c9cc6a..802c90c79d1f 100644
--- a/include/linux/iommu-common.h
+++ b/include/linux/iommu-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IOMMU_COMMON_H
 #define _LINUX_IOMMU_COMMON_H
 
diff --git a/include/linux/iommu-helper.h b/include/linux/iommu-helper.h
index 86bdeffe43ad..cb9a9248c8c0 100644
--- a/include/linux/iommu-helper.h
+++ b/include/linux/iommu-helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IOMMU_HELPER_H
 #define _LINUX_IOMMU_HELPER_H
 
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index a7f2ac689d29..41b8c5757859 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -167,11 +167,11 @@ struct iommu_resv_region {
  * @map: map a physically contiguous memory region to an iommu domain
  * @unmap: unmap a physically contiguous memory region from an iommu domain
  * @map_sg: map a scatter-gather list of physically contiguous memory chunks
+ *          to an iommu domain
  * @flush_tlb_all: Synchronously flush all hardware TLBs for this domain
  * @tlb_range_add: Add a given iova range to the flush queue for this domain
  * @tlb_sync: Flush all queued ranges from the hardware TLBs and empty flush
  *            queue
- * to an iommu domain
  * @iova_to_phys: translate iova to physical address
  * @add_device: add device to iommu grouping
  * @remove_device: remove device from iommu grouping
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index f5cf32e80041..93b4183cf53d 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ioport.h	Definitions of routines for detecting, reserving and
  *		allocating system resources.
@@ -270,11 +271,14 @@ extern int
 walk_system_ram_range(unsigned long start_pfn, unsigned long nr_pages,
 		void *arg, int (*func)(unsigned long, unsigned long, void *));
 extern int
+walk_mem_res(u64 start, u64 end, void *arg,
+	     int (*func)(struct resource *, void *));
+extern int
 walk_system_ram_res(u64 start, u64 end, void *arg,
-		    int (*func)(u64, u64, void *));
+		    int (*func)(struct resource *, void *));
 extern int
 walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start, u64 end,
-		    void *arg, int (*func)(u64, u64, void *));
+		    void *arg, int (*func)(struct resource *, void *));
 
 /* True if any part of r1 overlaps r2 */
 static inline bool resource_overlaps(struct resource *r1, struct resource *r2)
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index 8c1239020d79..627efac73e6d 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IOPRIO_H
 #define IOPRIO_H
 
 #include <linux/sched.h>
+#include <linux/sched/rt.h>
 #include <linux/iocontext.h>
 
 /*
@@ -62,7 +64,7 @@ static inline int task_nice_ioclass(struct task_struct *task)
 {
 	if (task->policy == SCHED_IDLE)
 		return IOPRIO_CLASS_IDLE;
-	else if (task->policy == SCHED_FIFO || task->policy == SCHED_RR)
+	else if (task_is_realtime(task))
 		return IOPRIO_CLASS_RT;
 	else
 		return IOPRIO_CLASS_BE;
diff --git a/include/linux/ipc.h b/include/linux/ipc.h
index 92a2ccff80c5..821b2f260992 100644
--- a/include/linux/ipc.h
+++ b/include/linux/ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IPC_H
 #define _LINUX_IPC_H
 
diff --git a/include/linux/ipc_namespace.h b/include/linux/ipc_namespace.h
index 83f0bf7a587d..474812abe773 100644
--- a/include/linux/ipc_namespace.h
+++ b/include/linux/ipc_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IPC_NAMESPACE_H__
 #define __IPC_NAMESPACE_H__
 
diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index ac2da4e11d5e..ea04ca024f0d 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IPV6_H
 #define _IPV6_H
 
diff --git a/include/linux/irq.h b/include/linux/irq.h
index b99a784635ff..b01d06db9101 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQ_H
 #define _LINUX_IRQ_H
 
@@ -783,10 +784,7 @@ static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
 static inline
 struct cpumask *irq_data_get_effective_affinity_mask(struct irq_data *d)
 {
-	if (!cpumask_empty(d->common->effective_affinity))
-		return d->common->effective_affinity;
-
-	return d->common->affinity;
+	return d->common->effective_affinity;
 }
 static inline void irq_data_update_effective_affinity(struct irq_data *d,
 						      const struct cpumask *m)
@@ -1012,7 +1010,7 @@ void irq_gc_mask_clr_bit(struct irq_data *d);
 void irq_gc_unmask_enable_reg(struct irq_data *d);
 void irq_gc_ack_set_bit(struct irq_data *d);
 void irq_gc_ack_clr_bit(struct irq_data *d);
-void irq_gc_mask_disable_reg_and_ack(struct irq_data *d);
+void irq_gc_mask_disable_and_ack_set(struct irq_data *d);
 void irq_gc_eoi(struct irq_data *d);
 int irq_gc_set_wake(struct irq_data *d, unsigned int on);
 
@@ -1116,6 +1114,28 @@ static inline u32 irq_reg_readl(struct irq_chip_generic *gc,
 		return readl(gc->reg_base + reg_offset);
 }
 
+struct irq_matrix;
+struct irq_matrix *irq_alloc_matrix(unsigned int matrix_bits,
+				    unsigned int alloc_start,
+				    unsigned int alloc_end);
+void irq_matrix_online(struct irq_matrix *m);
+void irq_matrix_offline(struct irq_matrix *m);
+void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit, bool replace);
+int irq_matrix_reserve_managed(struct irq_matrix *m, const struct cpumask *msk);
+void irq_matrix_remove_managed(struct irq_matrix *m, const struct cpumask *msk);
+int irq_matrix_alloc_managed(struct irq_matrix *m, unsigned int cpu);
+void irq_matrix_reserve(struct irq_matrix *m);
+void irq_matrix_remove_reserved(struct irq_matrix *m);
+int irq_matrix_alloc(struct irq_matrix *m, const struct cpumask *msk,
+		     bool reserved, unsigned int *mapped_cpu);
+void irq_matrix_free(struct irq_matrix *m, unsigned int cpu,
+		     unsigned int bit, bool managed);
+void irq_matrix_assign(struct irq_matrix *m, unsigned int bit);
+unsigned int irq_matrix_available(struct irq_matrix *m, bool cpudown);
+unsigned int irq_matrix_allocated(struct irq_matrix *m);
+unsigned int irq_matrix_reserved(struct irq_matrix *m);
+void irq_matrix_debug_show(struct seq_file *sf, struct irq_matrix *m, int ind);
+
 /* Contrary to Linux irqs, for hardware irqs the irq number 0 is valid */
 #define INVALID_HWIRQ	(~0UL)
 irq_hw_number_t ipi_get_hwirq(unsigned int irq, unsigned int cpu);
diff --git a/include/linux/irq_cpustat.h b/include/linux/irq_cpustat.h
index 77e4bac29287..4954948d1973 100644
--- a/include/linux/irq_cpustat.h
+++ b/include/linux/irq_cpustat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __irq_cpustat_h
 #define __irq_cpustat_h
 
diff --git a/include/linux/irq_poll.h b/include/linux/irq_poll.h
index 3e8c1b8fb9be..16aaeccb65cb 100644
--- a/include/linux/irq_poll.h
+++ b/include/linux/irq_poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef IRQ_POLL_H
 #define IRQ_POLL_H
 
diff --git a/include/linux/irq_work.h b/include/linux/irq_work.h
index 47b9ebd4a74f..0e81035b678f 100644
--- a/include/linux/irq_work.h
+++ b/include/linux/irq_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQ_WORK_H
 #define _LINUX_IRQ_WORK_H
 
@@ -33,10 +34,7 @@ void init_irq_work(struct irq_work *work, void (*func)(struct irq_work *))
 #define DEFINE_IRQ_WORK(name, _f) struct irq_work name = { .func = (_f), }
 
 bool irq_work_queue(struct irq_work *work);
-
-#ifdef CONFIG_SMP
 bool irq_work_queue_on(struct irq_work *work, int cpu);
-#endif
 
 void irq_work_tick(void);
 void irq_work_sync(struct irq_work *work);
diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index 1ea576c8126f..c00c4c33e432 100644
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -68,6 +68,7 @@
 #define GICD_CTLR_ENABLE_SS_G1		(1U << 1)
 #define GICD_CTLR_ENABLE_SS_G0		(1U << 0)
 
+#define GICD_TYPER_RSS			(1U << 26)
 #define GICD_TYPER_LPIS			(1U << 17)
 #define GICD_TYPER_MBIS			(1U << 16)
 
@@ -372,6 +373,8 @@
 #define GITS_BASER_ENTRY_SIZE_SHIFT		(48)
 #define GITS_BASER_ENTRY_SIZE(r)	((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0x1f) + 1)
 #define GITS_BASER_ENTRY_SIZE_MASK	GENMASK_ULL(52, 48)
+#define GITS_BASER_PHYS_52_to_48(phys)					\
+	(((phys) & GENMASK_ULL(47, 16)) | (((phys) >> 48) & 0xf) << 12)
 #define GITS_BASER_SHAREABILITY_SHIFT	(10)
 #define GITS_BASER_InnerShareable					\
 	GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
@@ -459,6 +462,7 @@
 #define ICC_CTLR_EL1_SEIS_MASK		(0x1 << ICC_CTLR_EL1_SEIS_SHIFT)
 #define ICC_CTLR_EL1_A3V_SHIFT		15
 #define ICC_CTLR_EL1_A3V_MASK		(0x1 << ICC_CTLR_EL1_A3V_SHIFT)
+#define ICC_CTLR_EL1_RSS		(0x1 << 18)
 #define ICC_PMR_EL1_SHIFT		0
 #define ICC_PMR_EL1_MASK		(0xff << ICC_PMR_EL1_SHIFT)
 #define ICC_BPR0_EL1_SHIFT		0
@@ -547,6 +551,8 @@
 #define ICC_SGI1R_AFFINITY_2_SHIFT	32
 #define ICC_SGI1R_AFFINITY_2_MASK	(0xffULL << ICC_SGI1R_AFFINITY_2_SHIFT)
 #define ICC_SGI1R_IRQ_ROUTING_MODE_BIT	40
+#define ICC_SGI1R_RS_SHIFT		44
+#define ICC_SGI1R_RS_MASK		(0xfULL << ICC_SGI1R_RS_SHIFT)
 #define ICC_SGI1R_AFFINITY_3_SHIFT	48
 #define ICC_SGI1R_AFFINITY_3_MASK	(0xffULL << ICC_SGI1R_AFFINITY_3_SHIFT)
 
diff --git a/include/linux/irqchip/arm-gic-v4.h b/include/linux/irqchip/arm-gic-v4.h
index 58a4d89aa82c..447da8ca2156 100644
--- a/include/linux/irqchip/arm-gic-v4.h
+++ b/include/linux/irqchip/arm-gic-v4.h
@@ -20,6 +20,12 @@
 
 struct its_vpe;
 
+/*
+ * Maximum number of ITTs when GITS_TYPER.VMOVP == 0, using the
+ * ITSList mechanism to perform inter-ITS synchronization.
+ */
+#define GICv4_ITS_LIST_MAX		16
+
 /* Embedded in kvm.arch */
 struct its_vm {
 	struct fwnode_handle	*fwnode;
@@ -30,6 +36,7 @@ struct its_vm {
 	irq_hw_number_t		db_lpi_base;
 	unsigned long		*db_bitmap;
 	int			nr_db_lpis;
+	u32			vlpi_count[GICv4_ITS_LIST_MAX];
 };
 
 /* Embedded in kvm_vcpu.arch */
@@ -64,12 +71,14 @@ struct its_vpe {
  * @vm:		Pointer to the GICv4 notion of a VM
  * @vpe:	Pointer to the GICv4 notion of a virtual CPU (VPE)
  * @vintid:	Virtual LPI number
+ * @properties:	Priority and enable bits (as written in the prop table)
  * @db_enabled:	Is the VPE doorbell to be generated?
  */
 struct its_vlpi_map {
 	struct its_vm		*vm;
 	struct its_vpe		*vpe;
 	u32			vintid;
+	u8			properties;
 	bool			db_enabled;
 };
 
diff --git a/include/linux/irqchip/irq-omap-intc.h b/include/linux/irqchip/irq-omap-intc.h
index 2e3d1afeb674..f19ccee7749f 100644
--- a/include/linux/irqchip/irq-omap-intc.h
+++ b/include/linux/irqchip/irq-omap-intc.h
@@ -18,8 +18,6 @@
 #ifndef __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H
 #define __INCLUDE_LINUX_IRQCHIP_IRQ_OMAP_INTC_H
 
-void omap3_init_irq(void);
-
 int omap_irq_pending(void);
 void omap_intc_save_context(void);
 void omap_intc_restore_context(void);
diff --git a/include/linux/irqchip/metag-ext.h b/include/linux/irqchip/metag-ext.h
index 697af0fe7c5a..d120496370b9 100644
--- a/include/linux/irqchip/metag-ext.h
+++ b/include/linux/irqchip/metag-ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2012 Imagination Technologies
  */
diff --git a/include/linux/irqchip/metag.h b/include/linux/irqchip/metag.h
index 4ebdfb3101ab..0adcf449e4e4 100644
--- a/include/linux/irqchip/metag.h
+++ b/include/linux/irqchip/metag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2011 Imagination Technologies
  */
diff --git a/include/linux/irqchip/mips-gic.h b/include/linux/irqchip/mips-gic.h
deleted file mode 100644
index 2b0e56619e53..000000000000
--- a/include/linux/irqchip/mips-gic.h
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2000, 07 MIPS Technologies, Inc.
- */
-#ifndef __LINUX_IRQCHIP_MIPS_GIC_H
-#define __LINUX_IRQCHIP_MIPS_GIC_H
-
-#include <linux/clocksource.h>
-#include <linux/ioport.h>
-
-#define GIC_MAX_INTRS			256
-
-/* Constants */
-#define GIC_POL_POS			1
-#define GIC_POL_NEG			0
-#define GIC_TRIG_EDGE			1
-#define GIC_TRIG_LEVEL			0
-#define GIC_TRIG_DUAL_ENABLE		1
-#define GIC_TRIG_DUAL_DISABLE		0
-
-#define MSK(n) ((1 << (n)) - 1)
-
-/* Accessors */
-#define GIC_REG(segment, offset) (segment##_##SECTION_OFS + offset##_##OFS)
-
-/* GIC Address Space */
-#define SHARED_SECTION_OFS		0x0000
-#define SHARED_SECTION_SIZE		0x8000
-#define VPE_LOCAL_SECTION_OFS		0x8000
-#define VPE_LOCAL_SECTION_SIZE		0x4000
-#define VPE_OTHER_SECTION_OFS		0xc000
-#define VPE_OTHER_SECTION_SIZE		0x4000
-#define USM_VISIBLE_SECTION_OFS		0x10000
-#define USM_VISIBLE_SECTION_SIZE	0x10000
-
-/* Register Map for Shared Section */
-
-#define GIC_SH_CONFIG_OFS		0x0000
-
-/* Shared Global Counter */
-#define GIC_SH_COUNTER_31_00_OFS	0x0010
-/* 64-bit counter register for CM3 */
-#define GIC_SH_COUNTER_OFS		GIC_SH_COUNTER_31_00_OFS
-#define GIC_SH_COUNTER_63_32_OFS	0x0014
-#define GIC_SH_REVISIONID_OFS		0x0020
-
-/* Convert an interrupt number to a byte offset/bit for multi-word registers */
-#define GIC_INTR_OFS(intr) ({				\
-	unsigned bits = mips_cm_is64 ? 64 : 32;		\
-	unsigned reg_idx = (intr) / bits;		\
-	unsigned reg_width = bits / 8;			\
-							\
-	reg_idx * reg_width;				\
-})
-#define GIC_INTR_BIT(intr)		((intr) % (mips_cm_is64 ? 64 : 32))
-
-/* Polarity : Reset Value is always 0 */
-#define GIC_SH_SET_POLARITY_OFS		0x0100
-
-/* Triggering : Reset Value is always 0 */
-#define GIC_SH_SET_TRIGGER_OFS		0x0180
-
-/* Dual edge triggering : Reset Value is always 0 */
-#define GIC_SH_SET_DUAL_OFS		0x0200
-
-/* Set/Clear corresponding bit in Edge Detect Register */
-#define GIC_SH_WEDGE_OFS		0x0280
-
-/* Mask manipulation */
-#define GIC_SH_RMASK_OFS		0x0300
-#define GIC_SH_SMASK_OFS		0x0380
-
-/* Global Interrupt Mask Register (RO) - Bit Set == Interrupt enabled */
-#define GIC_SH_MASK_OFS			0x0400
-
-/* Pending Global Interrupts (RO) */
-#define GIC_SH_PEND_OFS			0x0480
-
-/* Maps Interrupt X to a Pin */
-#define GIC_SH_INTR_MAP_TO_PIN_BASE_OFS 0x0500
-#define GIC_SH_MAP_TO_PIN(intr)		(4 * (intr))
-
-/* Maps Interrupt X to a VPE */
-#define GIC_SH_INTR_MAP_TO_VPE_BASE_OFS 0x2000
-#define GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe) \
-	((32 * (intr)) + (((vpe) / 32) * 4))
-#define GIC_SH_MAP_TO_VPE_REG_BIT(vpe)	(1 << ((vpe) % 32))
-
-/* Register Map for Local Section */
-#define GIC_VPE_CTL_OFS			0x0000
-#define GIC_VPE_PEND_OFS		0x0004
-#define GIC_VPE_MASK_OFS		0x0008
-#define GIC_VPE_RMASK_OFS		0x000c
-#define GIC_VPE_SMASK_OFS		0x0010
-#define GIC_VPE_WD_MAP_OFS		0x0040
-#define GIC_VPE_COMPARE_MAP_OFS		0x0044
-#define GIC_VPE_TIMER_MAP_OFS		0x0048
-#define GIC_VPE_FDC_MAP_OFS		0x004c
-#define GIC_VPE_PERFCTR_MAP_OFS		0x0050
-#define GIC_VPE_SWINT0_MAP_OFS		0x0054
-#define GIC_VPE_SWINT1_MAP_OFS		0x0058
-#define GIC_VPE_OTHER_ADDR_OFS		0x0080
-#define GIC_VP_IDENT_OFS		0x0088
-#define GIC_VPE_WD_CONFIG0_OFS		0x0090
-#define GIC_VPE_WD_COUNT0_OFS		0x0094
-#define GIC_VPE_WD_INITIAL0_OFS		0x0098
-#define GIC_VPE_COMPARE_LO_OFS		0x00a0
-/* 64-bit Compare register on CM3 */
-#define GIC_VPE_COMPARE_OFS		GIC_VPE_COMPARE_LO_OFS
-#define GIC_VPE_COMPARE_HI_OFS		0x00a4
-
-#define GIC_VPE_EIC_SHADOW_SET_BASE_OFS	0x0100
-#define GIC_VPE_EIC_SS(intr)		(4 * (intr))
-
-#define GIC_VPE_EIC_VEC_BASE_OFS	0x0800
-#define GIC_VPE_EIC_VEC(intr)		(4 * (intr))
-
-#define GIC_VPE_TENABLE_NMI_OFS		0x1000
-#define GIC_VPE_TENABLE_YQ_OFS		0x1004
-#define GIC_VPE_TENABLE_INT_31_0_OFS	0x1080
-#define GIC_VPE_TENABLE_INT_63_32_OFS	0x1084
-
-/* User Mode Visible Section Register Map */
-#define GIC_UMV_SH_COUNTER_31_00_OFS	0x0000
-#define GIC_UMV_SH_COUNTER_63_32_OFS	0x0004
-
-/* Masks */
-#define GIC_SH_CONFIG_COUNTSTOP_SHF	28
-#define GIC_SH_CONFIG_COUNTSTOP_MSK	(MSK(1) << GIC_SH_CONFIG_COUNTSTOP_SHF)
-
-#define GIC_SH_CONFIG_COUNTBITS_SHF	24
-#define GIC_SH_CONFIG_COUNTBITS_MSK	(MSK(4) << GIC_SH_CONFIG_COUNTBITS_SHF)
-
-#define GIC_SH_CONFIG_NUMINTRS_SHF	16
-#define GIC_SH_CONFIG_NUMINTRS_MSK	(MSK(8) << GIC_SH_CONFIG_NUMINTRS_SHF)
-
-#define GIC_SH_CONFIG_NUMVPES_SHF	0
-#define GIC_SH_CONFIG_NUMVPES_MSK	(MSK(8) << GIC_SH_CONFIG_NUMVPES_SHF)
-
-#define GIC_SH_WEDGE_SET(intr)		((intr) | (0x1 << 31))
-#define GIC_SH_WEDGE_CLR(intr)		((intr) & ~(0x1 << 31))
-
-#define GIC_MAP_TO_PIN_SHF		31
-#define GIC_MAP_TO_PIN_MSK		(MSK(1) << GIC_MAP_TO_PIN_SHF)
-#define GIC_MAP_TO_NMI_SHF		30
-#define GIC_MAP_TO_NMI_MSK		(MSK(1) << GIC_MAP_TO_NMI_SHF)
-#define GIC_MAP_TO_YQ_SHF		29
-#define GIC_MAP_TO_YQ_MSK		(MSK(1) << GIC_MAP_TO_YQ_SHF)
-#define GIC_MAP_SHF			0
-#define GIC_MAP_MSK			(MSK(6) << GIC_MAP_SHF)
-
-/* GIC_VPE_CTL Masks */
-#define GIC_VPE_CTL_FDC_RTBL_SHF	4
-#define GIC_VPE_CTL_FDC_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_FDC_RTBL_SHF)
-#define GIC_VPE_CTL_SWINT_RTBL_SHF	3
-#define GIC_VPE_CTL_SWINT_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_SWINT_RTBL_SHF)
-#define GIC_VPE_CTL_PERFCNT_RTBL_SHF	2
-#define GIC_VPE_CTL_PERFCNT_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_PERFCNT_RTBL_SHF)
-#define GIC_VPE_CTL_TIMER_RTBL_SHF	1
-#define GIC_VPE_CTL_TIMER_RTBL_MSK	(MSK(1) << GIC_VPE_CTL_TIMER_RTBL_SHF)
-#define GIC_VPE_CTL_EIC_MODE_SHF	0
-#define GIC_VPE_CTL_EIC_MODE_MSK	(MSK(1) << GIC_VPE_CTL_EIC_MODE_SHF)
-
-/* GIC_VPE_PEND Masks */
-#define GIC_VPE_PEND_WD_SHF		0
-#define GIC_VPE_PEND_WD_MSK		(MSK(1) << GIC_VPE_PEND_WD_SHF)
-#define GIC_VPE_PEND_CMP_SHF		1
-#define GIC_VPE_PEND_CMP_MSK		(MSK(1) << GIC_VPE_PEND_CMP_SHF)
-#define GIC_VPE_PEND_TIMER_SHF		2
-#define GIC_VPE_PEND_TIMER_MSK		(MSK(1) << GIC_VPE_PEND_TIMER_SHF)
-#define GIC_VPE_PEND_PERFCOUNT_SHF	3
-#define GIC_VPE_PEND_PERFCOUNT_MSK	(MSK(1) << GIC_VPE_PEND_PERFCOUNT_SHF)
-#define GIC_VPE_PEND_SWINT0_SHF		4
-#define GIC_VPE_PEND_SWINT0_MSK		(MSK(1) << GIC_VPE_PEND_SWINT0_SHF)
-#define GIC_VPE_PEND_SWINT1_SHF		5
-#define GIC_VPE_PEND_SWINT1_MSK		(MSK(1) << GIC_VPE_PEND_SWINT1_SHF)
-#define GIC_VPE_PEND_FDC_SHF		6
-#define GIC_VPE_PEND_FDC_MSK		(MSK(1) << GIC_VPE_PEND_FDC_SHF)
-
-/* GIC_VPE_RMASK Masks */
-#define GIC_VPE_RMASK_WD_SHF		0
-#define GIC_VPE_RMASK_WD_MSK		(MSK(1) << GIC_VPE_RMASK_WD_SHF)
-#define GIC_VPE_RMASK_CMP_SHF		1
-#define GIC_VPE_RMASK_CMP_MSK		(MSK(1) << GIC_VPE_RMASK_CMP_SHF)
-#define GIC_VPE_RMASK_TIMER_SHF		2
-#define GIC_VPE_RMASK_TIMER_MSK		(MSK(1) << GIC_VPE_RMASK_TIMER_SHF)
-#define GIC_VPE_RMASK_PERFCNT_SHF	3
-#define GIC_VPE_RMASK_PERFCNT_MSK	(MSK(1) << GIC_VPE_RMASK_PERFCNT_SHF)
-#define GIC_VPE_RMASK_SWINT0_SHF	4
-#define GIC_VPE_RMASK_SWINT0_MSK	(MSK(1) << GIC_VPE_RMASK_SWINT0_SHF)
-#define GIC_VPE_RMASK_SWINT1_SHF	5
-#define GIC_VPE_RMASK_SWINT1_MSK	(MSK(1) << GIC_VPE_RMASK_SWINT1_SHF)
-#define GIC_VPE_RMASK_FDC_SHF		6
-#define GIC_VPE_RMASK_FDC_MSK		(MSK(1) << GIC_VPE_RMASK_FDC_SHF)
-
-/* GIC_VPE_SMASK Masks */
-#define GIC_VPE_SMASK_WD_SHF		0
-#define GIC_VPE_SMASK_WD_MSK		(MSK(1) << GIC_VPE_SMASK_WD_SHF)
-#define GIC_VPE_SMASK_CMP_SHF		1
-#define GIC_VPE_SMASK_CMP_MSK		(MSK(1) << GIC_VPE_SMASK_CMP_SHF)
-#define GIC_VPE_SMASK_TIMER_SHF		2
-#define GIC_VPE_SMASK_TIMER_MSK		(MSK(1) << GIC_VPE_SMASK_TIMER_SHF)
-#define GIC_VPE_SMASK_PERFCNT_SHF	3
-#define GIC_VPE_SMASK_PERFCNT_MSK	(MSK(1) << GIC_VPE_SMASK_PERFCNT_SHF)
-#define GIC_VPE_SMASK_SWINT0_SHF	4
-#define GIC_VPE_SMASK_SWINT0_MSK	(MSK(1) << GIC_VPE_SMASK_SWINT0_SHF)
-#define GIC_VPE_SMASK_SWINT1_SHF	5
-#define GIC_VPE_SMASK_SWINT1_MSK	(MSK(1) << GIC_VPE_SMASK_SWINT1_SHF)
-#define GIC_VPE_SMASK_FDC_SHF		6
-#define GIC_VPE_SMASK_FDC_MSK		(MSK(1) << GIC_VPE_SMASK_FDC_SHF)
-
-/* GIC_VP_IDENT fields */
-#define GIC_VP_IDENT_VCNUM_SHF		0
-#define GIC_VP_IDENT_VCNUM_MSK		(MSK(6) << GIC_VP_IDENT_VCNUM_SHF)
-
-/* GIC nomenclature for Core Interrupt Pins. */
-#define GIC_CPU_INT0		0 /* Core Interrupt 2 */
-#define GIC_CPU_INT1		1 /* .		      */
-#define GIC_CPU_INT2		2 /* .		      */
-#define GIC_CPU_INT3		3 /* .		      */
-#define GIC_CPU_INT4		4 /* .		      */
-#define GIC_CPU_INT5		5 /* Core Interrupt 7 */
-
-/* Add 2 to convert GIC CPU pin to core interrupt */
-#define GIC_CPU_PIN_OFFSET	2
-
-/* Add 2 to convert non-EIC hardware interrupt to EIC vector number. */
-#define GIC_CPU_TO_VEC_OFFSET	2
-
-/* Mapped interrupt to pin X, then GIC will generate the vector (X+1). */
-#define GIC_PIN_TO_VEC_OFFSET	1
-
-/* Local GIC interrupts. */
-#define GIC_LOCAL_INT_WD	0 /* GIC watchdog */
-#define GIC_LOCAL_INT_COMPARE	1 /* GIC count and compare timer */
-#define GIC_LOCAL_INT_TIMER	2 /* CPU timer interrupt */
-#define GIC_LOCAL_INT_PERFCTR	3 /* CPU performance counter */
-#define GIC_LOCAL_INT_SWINT0	4 /* CPU software interrupt 0 */
-#define GIC_LOCAL_INT_SWINT1	5 /* CPU software interrupt 1 */
-#define GIC_LOCAL_INT_FDC	6 /* CPU fast debug channel */
-#define GIC_NUM_LOCAL_INTRS	7
-
-/* Convert between local/shared IRQ number and GIC HW IRQ number. */
-#define GIC_LOCAL_HWIRQ_BASE	0
-#define GIC_LOCAL_TO_HWIRQ(x)	(GIC_LOCAL_HWIRQ_BASE + (x))
-#define GIC_HWIRQ_TO_LOCAL(x)	((x) - GIC_LOCAL_HWIRQ_BASE)
-#define GIC_SHARED_HWIRQ_BASE	GIC_NUM_LOCAL_INTRS
-#define GIC_SHARED_TO_HWIRQ(x)	(GIC_SHARED_HWIRQ_BASE + (x))
-#define GIC_HWIRQ_TO_SHARED(x)	((x) - GIC_SHARED_HWIRQ_BASE)
-
-#ifdef CONFIG_MIPS_GIC
-
-extern unsigned int gic_present;
-
-extern void gic_init(unsigned long gic_base_addr,
-	unsigned long gic_addrspace_size, unsigned int cpu_vec,
-	unsigned int irqbase);
-extern u64 gic_read_count(void);
-extern unsigned int gic_get_count_width(void);
-extern u64 gic_read_compare(void);
-extern void gic_write_compare(u64 cnt);
-extern void gic_write_cpu_compare(u64 cnt, int cpu);
-extern void gic_start_count(void);
-extern void gic_stop_count(void);
-extern int gic_get_c0_compare_int(void);
-extern int gic_get_c0_perfcount_int(void);
-extern int gic_get_c0_fdc_int(void);
-extern int gic_get_usm_range(struct resource *gic_usm_res);
-
-#else /* CONFIG_MIPS_GIC */
-
-#define gic_present	0
-
-static inline int gic_get_usm_range(struct resource *gic_usm_res)
-{
-	/* Shouldn't be called. */
-	return -1;
-}
-
-#endif /* CONFIG_MIPS_GIC */
-
-/**
- * gic_read_local_vp_id() - read the local VPs VCNUM
- *
- * Read the VCNUM of the local VP from the GIC_VP_IDENT register and
- * return it to the caller. This ID should be used to refer to the VP
- * via the GICs VP-other region, or when calculating an offset to a
- * bit representing the VP in interrupt masks.
- *
- * Return: The VCNUM value for the local VP.
- */
-extern unsigned gic_read_local_vp_id(void);
-
-#endif /* __LINUX_IRQCHIP_MIPS_GIC_H */
diff --git a/include/linux/irqchip/mmp.h b/include/linux/irqchip/mmp.h
index c78a8921185d..cb8455c87c8a 100644
--- a/include/linux/irqchip/mmp.h
+++ b/include/linux/irqchip/mmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	__IRQCHIP_MMP_H
 #define	__IRQCHIP_MMP_H
 
diff --git a/include/linux/irqchip/versatile-fpga.h b/include/linux/irqchip/versatile-fpga.h
index 1fac9651d3ca..a978fc8c7996 100644
--- a/include/linux/irqchip/versatile-fpga.h
+++ b/include/linux/irqchip/versatile-fpga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PLAT_FPGA_IRQ_H
 #define PLAT_FPGA_IRQ_H
 
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h
index 3e90a094798d..60e3100b0809 100644
--- a/include/linux/irqdesc.h
+++ b/include/linux/irqdesc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQDESC_H
 #define _LINUX_IRQDESC_H
 
@@ -93,6 +94,7 @@ struct irq_desc {
 #endif
 #ifdef CONFIG_GENERIC_IRQ_DEBUGFS
 	struct dentry		*debugfs_file;
+	const char		*dev_name;
 #endif
 #ifdef CONFIG_SPARSE_IRQ
 	struct rcu_head		rcu;
diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h
index 81e4889ca6dd..a34355d19546 100644
--- a/include/linux/irqdomain.h
+++ b/include/linux/irqdomain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * irq_domain - IRQ translation domains
  *
@@ -32,6 +33,7 @@
 #include <linux/types.h>
 #include <linux/irqhandler.h>
 #include <linux/of.h>
+#include <linux/mutex.h>
 #include <linux/radix-tree.h>
 
 struct device_node;
@@ -40,6 +42,7 @@ struct of_device_id;
 struct irq_chip;
 struct irq_data;
 struct cpumask;
+struct seq_file;
 
 /* Number of irqs reserved for a legacy isa controller */
 #define NUM_ISA_INTERRUPTS	16
@@ -104,18 +107,21 @@ struct irq_domain_ops {
 	int (*xlate)(struct irq_domain *d, struct device_node *node,
 		     const u32 *intspec, unsigned int intsize,
 		     unsigned long *out_hwirq, unsigned int *out_type);
-
 #ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
 	/* extended V2 interfaces to support hierarchy irq_domains */
 	int (*alloc)(struct irq_domain *d, unsigned int virq,
 		     unsigned int nr_irqs, void *arg);
 	void (*free)(struct irq_domain *d, unsigned int virq,
 		     unsigned int nr_irqs);
-	void (*activate)(struct irq_domain *d, struct irq_data *irq_data);
+	int (*activate)(struct irq_domain *d, struct irq_data *irqd, bool early);
 	void (*deactivate)(struct irq_domain *d, struct irq_data *irq_data);
 	int (*translate)(struct irq_domain *d, struct irq_fwspec *fwspec,
 			 unsigned long *out_hwirq, unsigned int *out_type);
 #endif
+#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+	void (*debug_show)(struct seq_file *m, struct irq_domain *d,
+			   struct irq_data *irqd, int ind);
+#endif
 };
 
 extern struct irq_domain_ops irq_generic_chip_ops;
@@ -133,8 +139,8 @@ struct irq_domain_chip_generic;
  * @mapcount: The number of mapped interrupts
  *
  * Optional elements
- * @of_node: Pointer to device tree nodes associated with the irq_domain. Used
- *           when decoding device tree interrupt specifiers.
+ * @fwnode: Pointer to firmware node associated with the irq_domain. Pretty easy
+ *          to swap it for the of_node via the irq_domain_get_of_node accessor
  * @gc: Pointer to a list of generic chips. There is a helper function for
  *      setting up one or more generic chips for interrupt controllers
  *      drivers using the generic chip library which uses this pointer.
@@ -172,6 +178,7 @@ struct irq_domain {
 	unsigned int revmap_direct_max_irq;
 	unsigned int revmap_size;
 	struct radix_tree_root revmap_tree;
+	struct mutex revmap_tree_mutex;
 	unsigned int linear_revmap[];
 };
 
@@ -437,7 +444,7 @@ extern int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base,
 				   unsigned int nr_irqs, int node, void *arg,
 				   bool realloc, const struct cpumask *affinity);
 extern void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs);
-extern void irq_domain_activate_irq(struct irq_data *irq_data);
+extern int irq_domain_activate_irq(struct irq_data *irq_data, bool early);
 extern void irq_domain_deactivate_irq(struct irq_data *irq_data);
 
 static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
@@ -507,8 +514,6 @@ static inline bool irq_domain_is_msi_remap(struct irq_domain *domain)
 extern bool irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain);
 
 #else	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
-static inline void irq_domain_activate_irq(struct irq_data *data) { }
-static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
 static inline int irq_domain_alloc_irqs(struct irq_domain *domain,
 			unsigned int nr_irqs, int node, void *arg)
 {
@@ -557,8 +562,6 @@ irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain)
 
 #else /* CONFIG_IRQ_DOMAIN */
 static inline void irq_dispose_mapping(unsigned int virq) { }
-static inline void irq_domain_activate_irq(struct irq_data *data) { }
-static inline void irq_domain_deactivate_irq(struct irq_data *data) { }
 static inline struct irq_domain *irq_find_matching_fwnode(
 	struct fwnode_handle *fwnode, enum irq_domain_bus_token bus_token)
 {
diff --git a/include/linux/irqflags.h b/include/linux/irqflags.h
index 5fdd93bb9300..46cb57d5eb13 100644
--- a/include/linux/irqflags.h
+++ b/include/linux/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/irqflags.h
  *
diff --git a/include/linux/irqhandler.h b/include/linux/irqhandler.h
index 661bed0ed1f3..1e6f4e7123d6 100644
--- a/include/linux/irqhandler.h
+++ b/include/linux/irqhandler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQHANDLER_H
 #define _LINUX_IRQHANDLER_H
 
diff --git a/include/linux/irqnr.h b/include/linux/irqnr.h
index 9669bf9d4f48..3496baa0b07f 100644
--- a/include/linux/irqnr.h
+++ b/include/linux/irqnr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQNR_H
 #define _LINUX_IRQNR_H
 
diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index eb1bdcf95f2e..bd4c066ad39b 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_IRQRETURN_H
 #define _LINUX_IRQRETURN_H
 
diff --git a/include/linux/isa.h b/include/linux/isa.h
index f2d0258414cf..41336da0f4e7 100644
--- a/include/linux/isa.h
+++ b/include/linux/isa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ISA bus.
  */
diff --git a/include/linux/isicom.h b/include/linux/isicom.h
index b92e05650639..7de6822d7b1a 100644
--- a/include/linux/isicom.h
+++ b/include/linux/isicom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ISICOM_H
 #define _LINUX_ISICOM_H
 
diff --git a/include/linux/jiffies.h b/include/linux/jiffies.h
index 734377ad42e9..9385aa57497b 100644
--- a/include/linux/jiffies.h
+++ b/include/linux/jiffies.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_JIFFIES_H
 #define _LINUX_JIFFIES_H
 
diff --git a/include/linux/journal-head.h b/include/linux/journal-head.h
index 98cd41bb39c8..9fb870524314 100644
--- a/include/linux/journal-head.h
+++ b/include/linux/journal-head.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/journal-head.h
  *
diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index cd5861651b17..c7b368c734af 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_JUMP_LABEL_H
 #define _LINUX_JUMP_LABEL_H
 
@@ -81,9 +82,9 @@
 
 extern bool static_key_initialized;
 
-#define STATIC_KEY_CHECK_USE() WARN(!static_key_initialized,		      \
-				    "%s used before call to jump_label_init", \
-				    __func__)
+#define STATIC_KEY_CHECK_USE(key) WARN(!static_key_initialized,		      \
+				    "%s(): static key '%pS' used before call to jump_label_init()", \
+				    __func__, (key))
 
 #ifdef HAVE_JUMP_LABEL
 
@@ -211,13 +212,13 @@ static __always_inline bool static_key_true(struct static_key *key)
 
 static inline void static_key_slow_inc(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	atomic_inc(&key->enabled);
 }
 
 static inline void static_key_slow_dec(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	atomic_dec(&key->enabled);
 }
 
@@ -236,7 +237,7 @@ static inline int jump_label_apply_nops(struct module *mod)
 
 static inline void static_key_enable(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 
 	if (atomic_read(&key->enabled) != 0) {
 		WARN_ON_ONCE(atomic_read(&key->enabled) != 1);
@@ -247,7 +248,7 @@ static inline void static_key_enable(struct static_key *key)
 
 static inline void static_key_disable(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 
 	if (atomic_read(&key->enabled) != 1) {
 		WARN_ON_ONCE(atomic_read(&key->enabled) != 0);
diff --git a/include/linux/jump_label_ratelimit.h b/include/linux/jump_label_ratelimit.h
index 23da3af459fe..baa8eabbaa56 100644
--- a/include/linux/jump_label_ratelimit.h
+++ b/include/linux/jump_label_ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_JUMP_LABEL_RATELIMIT_H
 #define _LINUX_JUMP_LABEL_RATELIMIT_H
 
@@ -24,18 +25,18 @@ struct static_key_deferred {
 };
 static inline void static_key_slow_dec_deferred(struct static_key_deferred *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	static_key_slow_dec(&key->key);
 }
 static inline void static_key_deferred_flush(struct static_key_deferred *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 }
 static inline void
 jump_label_rate_limit(struct static_key_deferred *key,
 		unsigned long rl)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 }
 #endif	/* HAVE_JUMP_LABEL */
 #endif	/* _LINUX_JUMP_LABEL_RATELIMIT_H */
diff --git a/include/linux/jz4740-adc.h b/include/linux/jz4740-adc.h
index 8184578fbfa4..19d995c8bf06 100644
--- a/include/linux/jz4740-adc.h
+++ b/include/linux/jz4740-adc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __LINUX_JZ4740_ADC
 #define __LINUX_JZ4740_ADC
diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e197acb9..708f337d780b 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Rewritten and vastly simplified by Rusty Russell for in-kernel
  * module loader:
  *   Copyright 2002 Rusty Russell <rusty@rustcorp.com.au> IBM Corporation
@@ -13,6 +14,12 @@
 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
 			 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
 
+#ifndef CONFIG_64BIT
+# define KALLSYM_FMT "%08lx"
+#else
+# define KALLSYM_FMT "%016lx"
+#endif
+
 struct module;
 
 #ifdef CONFIG_KALLSYMS
@@ -45,6 +52,9 @@ extern void __print_symbol(const char *fmt, unsigned long address);
 int lookup_symbol_name(unsigned long addr, char *symname);
 int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name);
 
+/* How and when do we show kallsyms values? */
+extern int kallsyms_show_value(void);
+
 #else /* !CONFIG_KALLSYMS */
 
 static inline unsigned long kallsyms_lookup_name(const char *name)
@@ -103,6 +113,11 @@ static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, u
 	return -ERANGE;
 }
 
+static inline int kallsyms_show_value(void)
+{
+	return false;
+}
+
 /* Stupid that this does nothing, but I didn't create this mess. */
 #define __print_symbol(fmt, addr)
 #endif /*CONFIG_KALLSYMS*/
diff --git a/include/linux/kasan-checks.h b/include/linux/kasan-checks.h
index 41960fecf783..d314150658a4 100644
--- a/include/linux/kasan-checks.h
+++ b/include/linux/kasan-checks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KASAN_CHECKS_H
 #define _LINUX_KASAN_CHECKS_H
 
diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index a5c7046f26b4..5017269e3f04 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KASAN_H
 #define _LINUX_KASAN_H
 
diff --git a/include/linux/kbd_diacr.h b/include/linux/kbd_diacr.h
index 7274ec68c246..738c7340c151 100644
--- a/include/linux/kbd_diacr.h
+++ b/include/linux/kbd_diacr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _DIACR_H
 #define _DIACR_H
 #include <linux/kd.h>
diff --git a/include/linux/kbd_kern.h b/include/linux/kbd_kern.h
index cbfb171bbcba..bb2246c8ec13 100644
--- a/include/linux/kbd_kern.h
+++ b/include/linux/kbd_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KBD_KERN_H
 #define _KBD_KERN_H
 
diff --git a/include/linux/kbuild.h b/include/linux/kbuild.h
index 4e80f3a9ad58..e7be517aaaf6 100644
--- a/include/linux/kbuild.h
+++ b/include/linux/kbuild.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KBUILD_H
 #define __LINUX_KBUILD_H
 
diff --git a/include/linux/kconfig.h b/include/linux/kconfig.h
index 4d748603e818..fec5076eda91 100644
--- a/include/linux/kconfig.h
+++ b/include/linux/kconfig.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KCONFIG_H
 #define __LINUX_KCONFIG_H
 
diff --git a/include/linux/kcore.h b/include/linux/kcore.h
index d92762286645..7ff25a808fef 100644
--- a/include/linux/kcore.h
+++ b/include/linux/kcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * /proc/kcore definitions
  */
diff --git a/include/linux/kcov.h b/include/linux/kcov.h
index 2883ac98c280..f5d8ce4f4f86 100644
--- a/include/linux/kcov.h
+++ b/include/linux/kcov.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KCOV_H
 #define _LINUX_KCOV_H
 
diff --git a/include/linux/kd.h b/include/linux/kd.h
index 25bd17fad239..b130a18f860f 100644
--- a/include/linux/kd.h
+++ b/include/linux/kd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KD_H
 #define _LINUX_KD_H
 
diff --git a/include/linux/kdebug.h b/include/linux/kdebug.h
index ed815090b3bc..fd311565fabf 100644
--- a/include/linux/kdebug.h
+++ b/include/linux/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KDEBUG_H
 #define _LINUX_KDEBUG_H
 
diff --git a/include/linux/kdev_t.h b/include/linux/kdev_t.h
index 8e9e288b08c1..85b5151911cf 100644
--- a/include/linux/kdev_t.h
+++ b/include/linux/kdev_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KDEV_T_H
 #define _LINUX_KDEV_T_H
 
diff --git a/include/linux/kern_levels.h b/include/linux/kern_levels.h
index f282d4e87258..d237fe854ad9 100644
--- a/include/linux/kern_levels.h
+++ b/include/linux/kern_levels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KERN_LEVELS_H__
 #define __KERN_LEVELS_H__
 
diff --git a/include/linux/kernel-page-flags.h b/include/linux/kernel-page-flags.h
index f65ce09784f1..abd20ef93c98 100644
--- a/include/linux/kernel-page-flags.h
+++ b/include/linux/kernel-page-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KERNEL_PAGE_FLAGS_H
 #define LINUX_KERNEL_PAGE_FLAGS_H
 
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 0ad4c3044cf9..4b484ab9e163 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KERNEL_H
 #define _LINUX_KERNEL_H
 
@@ -44,6 +45,12 @@
 
 #define STACK_MAGIC	0xdeadbeef
 
+/**
+ * REPEAT_BYTE - repeat the value @x multiple times as an unsigned long value
+ * @x: value to repeat
+ *
+ * NOTE: @x is not checked for > 0xff; larger values produce odd results.
+ */
 #define REPEAT_BYTE(x)	((~0ul / 0xff) * (x))
 
 /* @a is a power of 2 value */
@@ -57,6 +64,10 @@
 #define READ			0
 #define WRITE			1
 
+/**
+ * ARRAY_SIZE - get the number of elements in array @arr
+ * @arr: array to be sized
+ */
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
 
 #define u64_to_user_ptr(x) (		\
@@ -76,7 +87,15 @@
 #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
 #define round_down(x, y) ((x) & ~__round_mask(x, y))
 
+/**
+ * FIELD_SIZEOF - get the size of a struct's field
+ * @t: the target struct
+ * @f: the target struct's field
+ * Return: the size of @f in the struct definition without having a
+ * declared instance of @t.
+ */
 #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
+
 #define DIV_ROUND_UP __KERNEL_DIV_ROUND_UP
 
 #define DIV_ROUND_DOWN_ULL(ll, d) \
@@ -107,7 +126,7 @@
 /*
  * Divide positive or negative dividend by positive or negative divisor
  * and round to closest integer. Result is undefined for negative
- * divisors if he dividend variable type is unsigned and for negative
+ * divisors if the dividend variable type is unsigned and for negative
  * dividends if the divisor variable type is unsigned.
  */
 #define DIV_ROUND_CLOSEST(x, divisor)(			\
@@ -247,13 +266,13 @@ extern int _cond_resched(void);
  * @ep_ro: right open interval endpoint
  *
  * Perform a "reciprocal multiplication" in order to "scale" a value into
- * range [0, ep_ro), where the upper interval endpoint is right-open.
+ * range [0, @ep_ro), where the upper interval endpoint is right-open.
  * This is useful, e.g. for accessing a index of an array containing
- * ep_ro elements, for example. Think of it as sort of modulus, only that
+ * @ep_ro elements, for example. Think of it as sort of modulus, only that
  * the result isn't that of modulo. ;) Note that if initial input is a
  * small value, then result will return 0.
  *
- * Return: a result based on val in interval [0, ep_ro).
+ * Return: a result based on @val in interval [0, @ep_ro).
  */
 static inline u32 reciprocal_scale(u32 val, u32 ep_ro)
 {
@@ -618,8 +637,8 @@ do {									\
  * trace_printk - printf formatting in the ftrace buffer
  * @fmt: the printf format for printing
  *
- * Note: __trace_printk is an internal function for trace_printk and
- *       the @ip is passed in via the trace_printk macro.
+ * Note: __trace_printk is an internal function for trace_printk() and
+ *       the @ip is passed in via the trace_printk() macro.
  *
  * This function allows a kernel developer to debug fast path sections
  * that printk is not appropriate for. By scattering in various
@@ -629,7 +648,7 @@ do {									\
  * This is intended as a debugging tool for the developer only.
  * Please refrain from leaving trace_printks scattered around in
  * your code. (Extra memory is used for special buffers that are
- * allocated when trace_printk() is used)
+ * allocated when trace_printk() is used.)
  *
  * A little optization trick is done here. If there's only one
  * argument, there's no need to scan the string for printf formats.
@@ -681,7 +700,7 @@ int __trace_printk(unsigned long ip, const char *fmt, ...);
  *       the @ip is passed in via the trace_puts macro.
  *
  * This is similar to trace_printk() but is made for those really fast
- * paths that a developer wants the least amount of "Heisenbug" affects,
+ * paths that a developer wants the least amount of "Heisenbug" effects,
  * where the processing of the print format is still too much.
  *
  * This function allows a kernel developer to debug fast path sections
@@ -692,7 +711,7 @@ int __trace_printk(unsigned long ip, const char *fmt, ...);
  * This is intended as a debugging tool for the developer only.
  * Please refrain from leaving trace_puts scattered around in
  * your code. (Extra memory is used for special buffers that are
- * allocated when trace_puts() is used)
+ * allocated when trace_puts() is used.)
  *
  * Returns: 0 if nothing was written, positive # if string was.
  *  (1 when __trace_bputs is used, strlen(str) when __trace_puts is used)
@@ -771,6 +790,12 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
 	t2 min2 = (y);					\
 	(void) (&min1 == &min2);			\
 	min1 < min2 ? min1 : min2; })
+
+/**
+ * min - return minimum of two values of the same or compatible types
+ * @x: first value
+ * @y: second value
+ */
 #define min(x, y)					\
 	__min(typeof(x), typeof(y),			\
 	      __UNIQUE_ID(min1_), __UNIQUE_ID(min2_),	\
@@ -781,12 +806,31 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
 	t2 max2 = (y);					\
 	(void) (&max1 == &max2);			\
 	max1 > max2 ? max1 : max2; })
+
+/**
+ * max - return maximum of two values of the same or compatible types
+ * @x: first value
+ * @y: second value
+ */
 #define max(x, y)					\
 	__max(typeof(x), typeof(y),			\
 	      __UNIQUE_ID(max1_), __UNIQUE_ID(max2_),	\
 	      x, y)
 
+/**
+ * min3 - return minimum of three values
+ * @x: first value
+ * @y: second value
+ * @z: third value
+ */
 #define min3(x, y, z) min((typeof(x))min(x, y), z)
+
+/**
+ * max3 - return maximum of three values
+ * @x: first value
+ * @y: second value
+ * @z: third value
+ */
 #define max3(x, y, z) max((typeof(x))max(x, y), z)
 
 /**
@@ -805,8 +849,8 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
  * @lo: lowest allowable value
  * @hi: highest allowable value
  *
- * This macro does strict typechecking of lo/hi to make sure they are of the
- * same type as val.  See the unnecessary pointer comparisons.
+ * This macro does strict typechecking of @lo/@hi to make sure they are of the
+ * same type as @val.  See the unnecessary pointer comparisons.
  */
 #define clamp(val, lo, hi) min((typeof(val))max(val, lo), hi)
 
@@ -816,11 +860,24 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
  *
  * Or not use min/max/clamp at all, of course.
  */
+
+/**
+ * min_t - return minimum of two values, using the specified type
+ * @type: data type to use
+ * @x: first value
+ * @y: second value
+ */
 #define min_t(type, x, y)				\
 	__min(type, type,				\
 	      __UNIQUE_ID(min1_), __UNIQUE_ID(min2_),	\
 	      x, y)
 
+/**
+ * max_t - return maximum of two values, using the specified type
+ * @type: data type to use
+ * @x: first value
+ * @y: second value
+ */
 #define max_t(type, x, y)				\
 	__max(type, type,				\
 	      __UNIQUE_ID(min1_), __UNIQUE_ID(min2_),	\
@@ -834,7 +891,7 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
  * @hi: maximum allowable value
  *
  * This macro does no typechecking and uses temporary variables of type
- * 'type' to make all the comparisons.
+ * @type to make all the comparisons.
  */
 #define clamp_t(type, val, lo, hi) min_t(type, max_t(type, val, lo), hi)
 
@@ -845,15 +902,17 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
  * @hi: maximum allowable value
  *
  * This macro does no typechecking and uses temporary variables of whatever
- * type the input argument 'val' is.  This is useful when val is an unsigned
- * type and min and max are literals that will otherwise be assigned a signed
+ * type the input argument @val is.  This is useful when @val is an unsigned
+ * type and @lo and @hi are literals that will otherwise be assigned a signed
  * integer type.
  */
 #define clamp_val(val, lo, hi) clamp_t(typeof(val), val, lo, hi)
 
 
-/*
- * swap - swap value of @a and @b
+/**
+ * swap - swap values of @a and @b
+ * @a: first value
+ * @b: second value
  */
 #define swap(a, b) \
 	do { typeof(a) __tmp = (a); (a) = (b); (b) = __tmp; } while (0)
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index 66be8b6beceb..7ee2bb43b251 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KERNEL_STAT_H
 #define _LINUX_KERNEL_STAT_H
 
diff --git a/include/linux/kernelcapi.h b/include/linux/kernelcapi.h
index e985ba679c4a..075fab5f92e1 100644
--- a/include/linux/kernelcapi.h
+++ b/include/linux/kernelcapi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * $Id: kernelcapi.h,v 1.8.6.2 2001/02/07 11:31:31 kai Exp $
  * 
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 2b7590f5483a..f16f6ceb3875 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KEXEC_H
 #define LINUX_KEXEC_H
 
@@ -159,7 +160,7 @@ struct kexec_buf {
 };
 
 int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
-			       int (*func)(u64, u64, void *));
+			       int (*func)(struct resource *, void *));
 extern int kexec_add_buffer(struct kexec_buf *kbuf);
 int kexec_locate_mem_hole(struct kexec_buf *kbuf);
 #endif /* CONFIG_KEXEC_FILE */
diff --git a/include/linux/key.h b/include/linux/key.h
index 044114185120..8a15cabe928d 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -138,6 +138,11 @@ struct key_restriction {
 	struct key_type *keytype;
 };
 
+enum key_state {
+	KEY_IS_UNINSTANTIATED,
+	KEY_IS_POSITIVE,		/* Positively instantiated */
+};
+
 /*****************************************************************************/
 /*
  * authentication token / access credential / keyring
@@ -169,6 +174,7 @@ struct key {
 						 * - may not match RCU dereferenced payload
 						 * - payload should contain own length
 						 */
+	short			state;		/* Key state (+) or rejection error (-) */
 
 #ifdef KEY_DEBUGGING
 	unsigned		magic;
@@ -176,17 +182,16 @@ struct key {
 #endif
 
 	unsigned long		flags;		/* status flags (change with bitops) */
-#define KEY_FLAG_INSTANTIATED	0	/* set if key has been instantiated */
-#define KEY_FLAG_DEAD		1	/* set if key type has been deleted */
-#define KEY_FLAG_REVOKED	2	/* set if key had been revoked */
-#define KEY_FLAG_IN_QUOTA	3	/* set if key consumes quota */
-#define KEY_FLAG_USER_CONSTRUCT	4	/* set if key is being constructed in userspace */
-#define KEY_FLAG_NEGATIVE	5	/* set if key is negative */
-#define KEY_FLAG_ROOT_CAN_CLEAR	6	/* set if key can be cleared by root without permission */
-#define KEY_FLAG_INVALIDATED	7	/* set if key has been invalidated */
-#define KEY_FLAG_BUILTIN	8	/* set if key is built in to the kernel */
-#define KEY_FLAG_ROOT_CAN_INVAL	9	/* set if key can be invalidated by root without permission */
-#define KEY_FLAG_KEEP		10	/* set if key should not be removed */
+#define KEY_FLAG_DEAD		0	/* set if key type has been deleted */
+#define KEY_FLAG_REVOKED	1	/* set if key had been revoked */
+#define KEY_FLAG_IN_QUOTA	2	/* set if key consumes quota */
+#define KEY_FLAG_USER_CONSTRUCT	3	/* set if key is being constructed in userspace */
+#define KEY_FLAG_ROOT_CAN_CLEAR	4	/* set if key can be cleared by root without permission */
+#define KEY_FLAG_INVALIDATED	5	/* set if key has been invalidated */
+#define KEY_FLAG_BUILTIN	6	/* set if key is built in to the kernel */
+#define KEY_FLAG_ROOT_CAN_INVAL	7	/* set if key can be invalidated by root without permission */
+#define KEY_FLAG_KEEP		8	/* set if key should not be removed */
+#define KEY_FLAG_UID_KEYRING	9	/* set if key is a user or user session keyring */
 
 	/* the key type and key description string
 	 * - the desc is used to match a key against search criteria
@@ -212,7 +217,6 @@ struct key {
 			struct list_head name_link;
 			struct assoc_array keys;
 		};
-		int reject_error;
 	};
 
 	/* This is set on a keyring to restrict the addition of a link to a key
@@ -243,6 +247,7 @@ extern struct key *key_alloc(struct key_type *type,
 #define KEY_ALLOC_NOT_IN_QUOTA		0x0002	/* not in quota */
 #define KEY_ALLOC_BUILT_IN		0x0004	/* Key is built into kernel */
 #define KEY_ALLOC_BYPASS_RESTRICTION	0x0008	/* Override the check on restricted keyrings */
+#define KEY_ALLOC_UID_KEYRING		0x0010	/* allocating a user or user session keyring */
 
 extern void key_revoke(struct key *key);
 extern void key_invalidate(struct key *key);
@@ -351,17 +356,27 @@ extern void key_set_timeout(struct key *, unsigned);
 #define	KEY_NEED_SETATTR 0x20	/* Require permission to change attributes */
 #define	KEY_NEED_ALL	0x3f	/* All the above permissions */
 
+static inline short key_read_state(const struct key *key)
+{
+	/* Barrier versus mark_key_instantiated(). */
+	return smp_load_acquire(&key->state);
+}
+
 /**
- * key_is_instantiated - Determine if a key has been positively instantiated
+ * key_is_positive - Determine if a key has been positively instantiated
  * @key: The key to check.
  *
  * Return true if the specified key has been positively instantiated, false
  * otherwise.
  */
-static inline bool key_is_instantiated(const struct key *key)
+static inline bool key_is_positive(const struct key *key)
+{
+	return key_read_state(key) == KEY_IS_POSITIVE;
+}
+
+static inline bool key_is_negative(const struct key *key)
 {
-	return test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
-		!test_bit(KEY_FLAG_NEGATIVE, &key->flags);
+	return key_read_state(key) < 0;
 }
 
 #define dereference_key_rcu(KEY)					\
diff --git a/include/linux/keyboard.h b/include/linux/keyboard.h
index 131ed5146521..73d11e4090cf 100644
--- a/include/linux/keyboard.h
+++ b/include/linux/keyboard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KEYBOARD_H
 #define __LINUX_KEYBOARD_H
 
diff --git a/include/linux/khugepaged.h b/include/linux/khugepaged.h
index f0d7335336cd..082d1d2a5216 100644
--- a/include/linux/khugepaged.h
+++ b/include/linux/khugepaged.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KHUGEPAGED_H
 #define _LINUX_KHUGEPAGED_H
 
diff --git a/include/linux/kmemcheck.h b/include/linux/kmemcheck.h
index 39f8453239f7..7b1d7bead7d9 100644
--- a/include/linux/kmemcheck.h
+++ b/include/linux/kmemcheck.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KMEMCHECK_H
 #define LINUX_KMEMCHECK_H
 
diff --git a/include/linux/kobj_map.h b/include/linux/kobj_map.h
index 18ca75ffcc5a..c9919f8b2293 100644
--- a/include/linux/kobj_map.h
+++ b/include/linux/kobj_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * kobj_map.h
  */
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index bd2684700b74..9440a2fc8893 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -391,10 +391,6 @@ int register_kprobes(struct kprobe **kps, int num);
 void unregister_kprobes(struct kprobe **kps, int num);
 int setjmp_pre_handler(struct kprobe *, struct pt_regs *);
 int longjmp_break_handler(struct kprobe *, struct pt_regs *);
-int register_jprobe(struct jprobe *p);
-void unregister_jprobe(struct jprobe *p);
-int register_jprobes(struct jprobe **jps, int num);
-void unregister_jprobes(struct jprobe **jps, int num);
 void jprobe_return(void);
 unsigned long arch_deref_entry_point(void *);
 
@@ -443,20 +439,6 @@ static inline void unregister_kprobe(struct kprobe *p)
 static inline void unregister_kprobes(struct kprobe **kps, int num)
 {
 }
-static inline int register_jprobe(struct jprobe *p)
-{
-	return -ENOSYS;
-}
-static inline int register_jprobes(struct jprobe **jps, int num)
-{
-	return -ENOSYS;
-}
-static inline void unregister_jprobe(struct jprobe *p)
-{
-}
-static inline void unregister_jprobes(struct jprobe **jps, int num)
-{
-}
 static inline void jprobe_return(void)
 {
 }
@@ -486,6 +468,20 @@ static inline int enable_kprobe(struct kprobe *kp)
 	return -ENOSYS;
 }
 #endif /* CONFIG_KPROBES */
+static inline int register_jprobe(struct jprobe *p)
+{
+	return -ENOSYS;
+}
+static inline int register_jprobes(struct jprobe **jps, int num)
+{
+	return -ENOSYS;
+}
+static inline void unregister_jprobe(struct jprobe *p)
+{
+}
+static inline void unregister_jprobes(struct jprobe **jps, int num)
+{
+}
 static inline int disable_kretprobe(struct kretprobe *rp)
 {
 	return disable_kprobe(&rp->kp);
@@ -496,11 +492,11 @@ static inline int enable_kretprobe(struct kretprobe *rp)
 }
 static inline int disable_jprobe(struct jprobe *jp)
 {
-	return disable_kprobe(&jp->kp);
+	return -ENOSYS;
 }
 static inline int enable_jprobe(struct jprobe *jp)
 {
-	return enable_kprobe(&jp->kp);
+	return -ENOSYS;
 }
 
 #ifndef CONFIG_KPROBES
diff --git a/include/linux/ksm.h b/include/linux/ksm.h
index 78b44a024eaa..44368b19b27e 100644
--- a/include/linux/ksm.h
+++ b/include/linux/ksm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KSM_H
 #define __LINUX_KSM_H
 /*
diff --git a/include/linux/kthread.h b/include/linux/kthread.h
index 82e197eeac91..3203e36b2ee8 100644
--- a/include/linux/kthread.h
+++ b/include/linux/kthread.h
@@ -1,8 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KTHREAD_H
 #define _LINUX_KTHREAD_H
 /* Simple interface for creating and stopping kernel threads without mess. */
 #include <linux/err.h>
 #include <linux/sched.h>
+#include <linux/cgroup.h>
 
 __printf(4, 5)
 struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
@@ -75,7 +77,7 @@ extern int tsk_fork_get_node(struct task_struct *tsk);
  */
 struct kthread_work;
 typedef void (*kthread_work_func_t)(struct kthread_work *work);
-void kthread_delayed_work_timer_fn(unsigned long __data);
+void kthread_delayed_work_timer_fn(struct timer_list *t);
 
 enum {
 	KTW_FREEZABLE		= 1 << 0,	/* freeze during suspend */
@@ -116,8 +118,8 @@ struct kthread_delayed_work {
 
 #define KTHREAD_DELAYED_WORK_INIT(dwork, fn) {				\
 	.work = KTHREAD_WORK_INIT((dwork).work, (fn)),			\
-	.timer = __TIMER_INITIALIZER(kthread_delayed_work_timer_fn,	\
-				     0, (unsigned long)&(dwork),	\
+	.timer = __TIMER_INITIALIZER((TIMER_FUNC_TYPE)kthread_delayed_work_timer_fn,\
+				     (TIMER_DATA_TYPE)&(dwork.timer),	\
 				     TIMER_IRQSAFE),			\
 	}
 
@@ -164,8 +166,8 @@ extern void __kthread_init_worker(struct kthread_worker *worker,
 	do {								\
 		kthread_init_work(&(dwork)->work, (fn));		\
 		__setup_timer(&(dwork)->timer,				\
-			      kthread_delayed_work_timer_fn,		\
-			      (unsigned long)(dwork),			\
+			      (TIMER_FUNC_TYPE)kthread_delayed_work_timer_fn,\
+			      (TIMER_DATA_TYPE)&(dwork)->timer,		\
 			      TIMER_IRQSAFE);				\
 	} while (0)
 
@@ -198,4 +200,14 @@ bool kthread_cancel_delayed_work_sync(struct kthread_delayed_work *work);
 
 void kthread_destroy_worker(struct kthread_worker *worker);
 
+#ifdef CONFIG_BLK_CGROUP
+void kthread_associate_blkcg(struct cgroup_subsys_state *css);
+struct cgroup_subsys_state *kthread_blkcg(void);
+#else
+static inline void kthread_associate_blkcg(struct cgroup_subsys_state *css) { }
+static inline struct cgroup_subsys_state *kthread_blkcg(void)
+{
+	return NULL;
+}
+#endif
 #endif /* _LINUX_KTHREAD_H */
diff --git a/include/linux/ktime.h b/include/linux/ktime.h
index 0c8bd45c8206..5b9fddbaac41 100644
--- a/include/linux/ktime.h
+++ b/include/linux/ktime.h
@@ -270,5 +270,6 @@ static inline ktime_t ms_to_ktime(u64 ms)
 }
 
 # include <linux/timekeeping.h>
+# include <linux/timekeeping32.h>
 
 #endif
diff --git a/include/linux/kvm_para.h b/include/linux/kvm_para.h
index 35e568f04b1e..51f6ef2c2ff4 100644
--- a/include/linux/kvm_para.h
+++ b/include/linux/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_KVM_PARA_H
 #define __LINUX_KVM_PARA_H
 
diff --git a/include/linux/l2tp.h b/include/linux/l2tp.h
index bffdb962f1a6..0402eda1a94e 100644
--- a/include/linux/l2tp.h
+++ b/include/linux/l2tp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * L2TP-over-IP socket for L2TPv3.
  *
diff --git a/include/linux/lapb.h b/include/linux/lapb.h
index 873c1eb635e4..eb56472f23b2 100644
--- a/include/linux/lapb.h
+++ b/include/linux/lapb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * These are the public elements of the Linux LAPB module.
  */
diff --git a/include/linux/latencytop.h b/include/linux/latencytop.h
index 59ccab297ae0..7c560e0dc8f4 100644
--- a/include/linux/latencytop.h
+++ b/include/linux/latencytop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * latencytop.h: Infrastructure for displaying latency
  *
diff --git a/include/linux/lcd.h b/include/linux/lcd.h
index 504f6246f38f..851eee8fff25 100644
--- a/include/linux/lcd.h
+++ b/include/linux/lcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * LCD Lowlevel Control Abstraction
  *
diff --git a/include/linux/lcm.h b/include/linux/lcm.h
index 1ce79a7f1daa..0db3efd56efb 100644
--- a/include/linux/lcm.h
+++ b/include/linux/lcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LCM_H
 #define _LCM_H
 
diff --git a/include/linux/leds_pwm.h b/include/linux/leds_pwm.h
index a65e9646e4b1..93d101d28943 100644
--- a/include/linux/leds_pwm.h
+++ b/include/linux/leds_pwm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PWM LED driver data - see drivers/leds/leds-pwm.c
  */
diff --git a/include/linux/libfdt.h b/include/linux/libfdt.h
index 4c0306c69b4e..27ba06e5d117 100644
--- a/include/linux/libfdt.h
+++ b/include/linux/libfdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_LIBFDT_H_
 #define _INCLUDE_LIBFDT_H_
 
diff --git a/include/linux/libfdt_env.h b/include/linux/libfdt_env.h
index 2a663c6bb428..14997285e53d 100644
--- a/include/linux/libfdt_env.h
+++ b/include/linux/libfdt_env.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBFDT_ENV_H
 #define _LIBFDT_ENV_H
 
diff --git a/include/linux/lightnvm.h b/include/linux/lightnvm.h
index 7dfa56ebbc6d..2d1d9de06728 100644
--- a/include/linux/lightnvm.h
+++ b/include/linux/lightnvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef NVM_H
 #define NVM_H
 
@@ -56,6 +57,7 @@ typedef int (nvm_get_l2p_tbl_fn)(struct nvm_dev *, u64, u32,
 typedef int (nvm_op_bb_tbl_fn)(struct nvm_dev *, struct ppa_addr, u8 *);
 typedef int (nvm_op_set_bb_fn)(struct nvm_dev *, struct ppa_addr *, int, int);
 typedef int (nvm_submit_io_fn)(struct nvm_dev *, struct nvm_rq *);
+typedef int (nvm_submit_io_sync_fn)(struct nvm_dev *, struct nvm_rq *);
 typedef void *(nvm_create_dma_pool_fn)(struct nvm_dev *, char *);
 typedef void (nvm_destroy_dma_pool_fn)(void *);
 typedef void *(nvm_dev_dma_alloc_fn)(struct nvm_dev *, void *, gfp_t,
@@ -69,6 +71,7 @@ struct nvm_dev_ops {
 	nvm_op_set_bb_fn	*set_bb_tbl;
 
 	nvm_submit_io_fn	*submit_io;
+	nvm_submit_io_sync_fn	*submit_io_sync;
 
 	nvm_create_dma_pool_fn	*create_dma_pool;
 	nvm_destroy_dma_pool_fn	*destroy_dma_pool;
@@ -460,10 +463,9 @@ struct nvm_tgt_type {
 
 	/* For internal use */
 	struct list_head list;
+	struct module *owner;
 };
 
-extern struct nvm_tgt_type *nvm_find_target_type(const char *, int);
-
 extern int nvm_register_tgt_type(struct nvm_tgt_type *);
 extern void nvm_unregister_tgt_type(struct nvm_tgt_type *);
 
@@ -478,10 +480,8 @@ extern int nvm_set_tgt_bb_tbl(struct nvm_tgt_dev *, struct ppa_addr *,
 			      int, int);
 extern int nvm_max_phys_sects(struct nvm_tgt_dev *);
 extern int nvm_submit_io(struct nvm_tgt_dev *, struct nvm_rq *);
+extern int nvm_submit_io_sync(struct nvm_tgt_dev *, struct nvm_rq *);
 extern int nvm_erase_sync(struct nvm_tgt_dev *, struct ppa_addr *, int);
-extern int nvm_set_rqd_ppalist(struct nvm_tgt_dev *, struct nvm_rq *,
-					const struct ppa_addr *, int, int);
-extern void nvm_free_rqd_ppalist(struct nvm_tgt_dev *, struct nvm_rq *);
 extern int nvm_get_l2p_tbl(struct nvm_tgt_dev *, u64, u32, nvm_l2p_update_fn *,
 			   void *);
 extern int nvm_get_area(struct nvm_tgt_dev *, sector_t *, sector_t);
@@ -490,8 +490,6 @@ extern void nvm_end_io(struct nvm_rq *);
 extern int nvm_bb_tbl_fold(struct nvm_dev *, u8 *, int);
 extern int nvm_get_tgt_bb_tbl(struct nvm_tgt_dev *, struct ppa_addr, u8 *);
 
-extern int nvm_dev_factory(struct nvm_dev *, int flags);
-
 extern void nvm_part_to_tgt(struct nvm_dev *, sector_t *, int);
 
 #else /* CONFIG_NVM */
diff --git a/include/linux/linkage.h b/include/linux/linkage.h
index a6a42dd02466..f68db9e450eb 100644
--- a/include/linux/linkage.h
+++ b/include/linux/linkage.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LINKAGE_H
 #define _LINUX_LINKAGE_H
 
-#include <linux/compiler.h>
+#include <linux/compiler_types.h>
 #include <linux/stringify.h>
 #include <linux/export.h>
 #include <asm/linkage.h>
diff --git a/include/linux/linux_logo.h b/include/linux/linux_logo.h
index ca5bd91d12e1..5e3581d76c7f 100644
--- a/include/linux/linux_logo.h
+++ b/include/linux/linux_logo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LINUX_LOGO_H
 #define _LINUX_LINUX_LOGO_H
 
diff --git a/include/linux/lis3lv02d.h b/include/linux/lis3lv02d.h
index f1664c636af0..b72b8cdba765 100644
--- a/include/linux/lis3lv02d.h
+++ b/include/linux/lis3lv02d.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LIS3LV02D_H_
 #define __LIS3LV02D_H_
 
diff --git a/include/linux/list.h b/include/linux/list.h
index ae537fa46216..4b129df4d46b 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_H
 #define _LINUX_LIST_H
 
diff --git a/include/linux/list_bl.h b/include/linux/list_bl.h
index cb483305e1f5..3fc2cc57ba1b 100644
--- a/include/linux/list_bl.h
+++ b/include/linux/list_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_BL_H
 #define _LINUX_LIST_BL_H
 
diff --git a/include/linux/list_lru.h b/include/linux/list_lru.h
index fa7fd03cb5f9..bb8129a3474d 100644
--- a/include/linux/list_lru.h
+++ b/include/linux/list_lru.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2013 Red Hat, Inc. and Parallels Inc. All rights reserved.
  * Authors: David Chinner and Glauber Costa
diff --git a/include/linux/list_nulls.h b/include/linux/list_nulls.h
index 87ff4f58a2f0..3ef96743db8d 100644
--- a/include/linux/list_nulls.h
+++ b/include/linux/list_nulls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_NULLS_H
 #define _LINUX_LIST_NULLS_H
 
diff --git a/include/linux/list_sort.h b/include/linux/list_sort.h
index 1a2df2efb771..ba79956e848d 100644
--- a/include/linux/list_sort.h
+++ b/include/linux/list_sort.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_LIST_SORT_H
 #define _LINUX_LIST_SORT_H
 
diff --git a/include/linux/llist.h b/include/linux/llist.h
index 1957635e6d5f..85abc2915e8d 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -198,7 +198,7 @@ static inline void init_llist_head(struct llist_head *list)
  */
 static inline bool llist_empty(const struct llist_head *head)
 {
-	return ACCESS_ONCE(head->first) == NULL;
+	return READ_ONCE(head->first) == NULL;
 }
 
 static inline struct llist_node *llist_next(struct llist_node *node)
diff --git a/include/linux/lockd/bind.h b/include/linux/lockd/bind.h
index 05728396a1a1..053a4ef3d431 100644
--- a/include/linux/lockd/bind.h
+++ b/include/linux/lockd/bind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/bind.h
  *
diff --git a/include/linux/lockd/debug.h b/include/linux/lockd/debug.h
index 0ca8109934e4..e536c579827f 100644
--- a/include/linux/lockd/debug.h
+++ b/include/linux/lockd/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/debug.h
  *
diff --git a/include/linux/lockd/lockd.h b/include/linux/lockd/lockd.h
index 3eca67728366..d7d313fb9cd4 100644
--- a/include/linux/lockd/lockd.h
+++ b/include/linux/lockd/lockd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/lockd.h
  *
diff --git a/include/linux/lockd/nlm.h b/include/linux/lockd/nlm.h
index d9d46e442538..6e343ef760dc 100644
--- a/include/linux/lockd/nlm.h
+++ b/include/linux/lockd/nlm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/nlm.h
  *
diff --git a/include/linux/lockd/share.h b/include/linux/lockd/share.h
index 630c5bf69b07..1f18a9faf645 100644
--- a/include/linux/lockd/share.h
+++ b/include/linux/lockd/share.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/share.h
  *
diff --git a/include/linux/lockd/xdr.h b/include/linux/lockd/xdr.h
index 7acbecc21a40..7ab9f264313f 100644
--- a/include/linux/lockd/xdr.h
+++ b/include/linux/lockd/xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/xdr.h
  *
diff --git a/include/linux/lockd/xdr4.h b/include/linux/lockd/xdr4.h
index bf1645609225..e709fe5924f2 100644
--- a/include/linux/lockd/xdr4.h
+++ b/include/linux/lockd/xdr4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/lockd/xdr4.h
  *
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index bfa8e0b0d6f1..a842551fe044 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Runtime locking correctness validator
  *
@@ -527,6 +528,11 @@ static inline void lockdep_on(void)
  */
 struct lock_class_key { };
 
+/*
+ * The lockdep_map takes no space if lockdep is disabled:
+ */
+struct lockdep_map { };
+
 #define lockdep_depth(tsk)	(0)
 
 #define lockdep_is_held_type(l, r)		(1)
@@ -719,9 +725,24 @@ do {									\
 	lock_acquire(&(lock)->dep_map, 0, 0, 1, 1, NULL, _THIS_IP_);	\
 	lock_release(&(lock)->dep_map, 0, _THIS_IP_);			\
 } while (0)
+
+#define lockdep_assert_irqs_enabled()	do {				\
+		WARN_ONCE(debug_locks && !current->lockdep_recursion &&	\
+			  !current->hardirqs_enabled,			\
+			  "IRQs not enabled as expected\n");		\
+	} while (0)
+
+#define lockdep_assert_irqs_disabled()	do {				\
+		WARN_ONCE(debug_locks && !current->lockdep_recursion &&	\
+			  current->hardirqs_enabled,			\
+			  "IRQs not disabled as expected\n");		\
+	} while (0)
+
 #else
 # define might_lock(lock) do { } while (0)
 # define might_lock_read(lock) do { } while (0)
+# define lockdep_assert_irqs_enabled() do { } while (0)
+# define lockdep_assert_irqs_disabled() do { } while (0)
 #endif
 
 #ifdef CONFIG_LOCKDEP
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index b10b122dd099..ef3c9342e119 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_LOCKREF_H
 #define __LINUX_LOCKREF_H
 
diff --git a/include/linux/log2.h b/include/linux/log2.h
index c373295f359f..41a1ae010993 100644
--- a/include/linux/log2.h
+++ b/include/linux/log2.h
@@ -37,19 +37,23 @@ int __ilog2_u64(u64 n)
 }
 #endif
 
-/*
- *  Determine whether some value is a power of two, where zero is
+/**
+ * is_power_of_2() - check if a value is a power of two
+ * @n: the value to check
+ *
+ * Determine whether some value is a power of two, where zero is
  * *not* considered a power of two.
+ * Return: true if @n is a power of 2, otherwise false.
  */
-
 static inline __attribute__((const))
 bool is_power_of_2(unsigned long n)
 {
 	return (n != 0 && ((n & (n - 1)) == 0));
 }
 
-/*
- * round up to nearest power of two
+/**
+ * __roundup_pow_of_two() - round up to nearest power of two
+ * @n: value to round up
  */
 static inline __attribute__((const))
 unsigned long __roundup_pow_of_two(unsigned long n)
@@ -57,8 +61,9 @@ unsigned long __roundup_pow_of_two(unsigned long n)
 	return 1UL << fls_long(n - 1);
 }
 
-/*
- * round down to nearest power of two
+/**
+ * __rounddown_pow_of_two() - round down to nearest power of two
+ * @n: value to round down
  */
 static inline __attribute__((const))
 unsigned long __rounddown_pow_of_two(unsigned long n)
@@ -67,12 +72,12 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 }
 
 /**
- * ilog2 - log of base 2 of 32-bit or a 64-bit unsigned value
- * @n - parameter
+ * ilog2 - log base 2 of 32-bit or a 64-bit unsigned value
+ * @n: parameter
  *
  * constant-capable log of base 2 calculation
  * - this can be used to initialise global variables from constant data, hence
- *   the massive ternary operator construction
+ * the massive ternary operator construction
  *
  * selects the appropriately-sized optimised version depending on sizeof(n)
  */
@@ -150,7 +155,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 
 /**
  * roundup_pow_of_two - round the given value up to nearest power of two
- * @n - parameter
+ * @n: parameter
  *
  * round the given value up to the nearest power of two
  * - the result is undefined when n == 0
@@ -167,7 +172,7 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 
 /**
  * rounddown_pow_of_two - round the given value down to nearest power of two
- * @n - parameter
+ * @n: parameter
  *
  * round the given value down to the nearest power of two
  * - the result is undefined when n == 0
@@ -180,6 +185,12 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
 	__rounddown_pow_of_two(n)		\
  )
 
+static inline __attribute_const__
+int __order_base_2(unsigned long n)
+{
+	return n > 1 ? ilog2(n - 1) + 1 : 0;
+}
+
 /**
  * order_base_2 - calculate the (rounded up) base 2 order of the argument
  * @n: parameter
@@ -193,13 +204,6 @@ unsigned long __rounddown_pow_of_two(unsigned long n)
  *  ob2(5) = 3
  *  ... and so on.
  */
-
-static inline __attribute_const__
-int __order_base_2(unsigned long n)
-{
-	return n > 1 ? ilog2(n - 1) + 1 : 0;
-}
-
 #define order_base_2(n)				\
 (						\
 	__builtin_constant_p(n) ? (		\
diff --git a/include/linux/lp.h b/include/linux/lp.h
index 0dd276af9e4e..be8a07eb2083 100644
--- a/include/linux/lp.h
+++ b/include/linux/lp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * usr/include/linux/lp.h c.1991-1992 James Wiegand
  * many modifications copyright (C) 1992 Michael K. Johnson
diff --git a/include/linux/lsm_audit.h b/include/linux/lsm_audit.h
index d1c2901f1542..915330abf6e5 100644
--- a/include/linux/lsm_audit.h
+++ b/include/linux/lsm_audit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common LSM logging functions
  * Heavily borrowed from selinux/avc.h
diff --git a/include/linux/lzo.h b/include/linux/lzo.h
index a0848d9377e5..2ae27cb89927 100644
--- a/include/linux/lzo.h
+++ b/include/linux/lzo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LZO_H__
 #define __LZO_H__
 /*
diff --git a/include/linux/mISDNdsp.h b/include/linux/mISDNdsp.h
index 41d1eeb9b3bd..00758f45fddc 100644
--- a/include/linux/mISDNdsp.h
+++ b/include/linux/mISDNdsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __mISDNdsp_H__
 #define __mISDNdsp_H__
 
diff --git a/include/linux/maple.h b/include/linux/maple.h
index c37288b23e0c..9b140272ee16 100644
--- a/include/linux/maple.h
+++ b/include/linux/maple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MAPLE_H
 #define __LINUX_MAPLE_H
 
diff --git a/include/linux/marvell_phy.h b/include/linux/marvell_phy.h
index 4055cf8cc978..4f5f8c21e283 100644
--- a/include/linux/marvell_phy.h
+++ b/include/linux/marvell_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MARVELL_PHY_H
 #define _MARVELL_PHY_H
 
diff --git a/include/linux/math64.h b/include/linux/math64.h
index 80690c96c734..837f2f2d1d34 100644
--- a/include/linux/math64.h
+++ b/include/linux/math64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MATH64_H
 #define _LINUX_MATH64_H
 
@@ -11,6 +12,11 @@
 
 /**
  * div_u64_rem - unsigned 64bit divide with 32bit divisor with remainder
+ * @dividend: unsigned 64bit dividend
+ * @divisor: unsigned 32bit divisor
+ * @remainder: pointer to unsigned 32bit remainder
+ *
+ * Return: sets ``*remainder``, then returns dividend / divisor
  *
  * This is commonly provided by 32bit archs to provide an optimized 64bit
  * divide.
@@ -23,6 +29,11 @@ static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
 
 /**
  * div_s64_rem - signed 64bit divide with 32bit divisor with remainder
+ * @dividend: signed 64bit dividend
+ * @divisor: signed 32bit divisor
+ * @remainder: pointer to signed 32bit remainder
+ *
+ * Return: sets ``*remainder``, then returns dividend / divisor
  */
 static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
 {
@@ -32,6 +43,11 @@ static inline s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
 
 /**
  * div64_u64_rem - unsigned 64bit divide with 64bit divisor and remainder
+ * @dividend: unsigned 64bit dividend
+ * @divisor: unsigned 64bit divisor
+ * @remainder: pointer to unsigned 64bit remainder
+ *
+ * Return: sets ``*remainder``, then returns dividend / divisor
  */
 static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
 {
@@ -41,6 +57,10 @@ static inline u64 div64_u64_rem(u64 dividend, u64 divisor, u64 *remainder)
 
 /**
  * div64_u64 - unsigned 64bit divide with 64bit divisor
+ * @dividend: unsigned 64bit dividend
+ * @divisor: unsigned 64bit divisor
+ *
+ * Return: dividend / divisor
  */
 static inline u64 div64_u64(u64 dividend, u64 divisor)
 {
@@ -49,6 +69,10 @@ static inline u64 div64_u64(u64 dividend, u64 divisor)
 
 /**
  * div64_s64 - signed 64bit divide with 64bit divisor
+ * @dividend: signed 64bit dividend
+ * @divisor: signed 64bit divisor
+ *
+ * Return: dividend / divisor
  */
 static inline s64 div64_s64(s64 dividend, s64 divisor)
 {
@@ -88,6 +112,8 @@ extern s64 div64_s64(s64 dividend, s64 divisor);
 
 /**
  * div_u64 - unsigned 64bit divide with 32bit divisor
+ * @dividend: unsigned 64bit dividend
+ * @divisor: unsigned 32bit divisor
  *
  * This is the most common 64bit divide and should be used if possible,
  * as many 32bit archs can optimize this variant better than a full 64bit
@@ -103,6 +129,8 @@ static inline u64 div_u64(u64 dividend, u32 divisor)
 
 /**
  * div_s64 - signed 64bit divide with 32bit divisor
+ * @dividend: signed 64bit dividend
+ * @divisor: signed 32bit divisor
  */
 #ifndef div_s64
 static inline s64 div_s64(s64 dividend, s32 divisor)
diff --git a/include/linux/mbcache.h b/include/linux/mbcache.h
index e1bc73414983..20f1e3ff6013 100644
--- a/include/linux/mbcache.h
+++ b/include/linux/mbcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MBCACHE_H
 #define _LINUX_MBCACHE_H
 
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index 0d3f14fd2621..4773145246ed 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -31,8 +31,8 @@ struct mbus_dram_target_info
 	struct mbus_dram_window {
 		u8	cs_index;
 		u8	mbus_attr;
-		u32	base;
-		u32	size;
+		u64	base;
+		u64	size;
 	} cs[4];
 };
 
diff --git a/include/linux/mc6821.h b/include/linux/mc6821.h
index 28e301e295da..8dffab19b4ac 100644
--- a/include/linux/mc6821.h
+++ b/include/linux/mc6821.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MC6821_H_
 #define _MC6821_H_
 
diff --git a/include/linux/mdio-bitbang.h b/include/linux/mdio-bitbang.h
index 76f52bbbb2f4..a8ac9cfa014c 100644
--- a/include/linux/mdio-bitbang.h
+++ b/include/linux/mdio-bitbang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MDIO_BITBANG_H
 #define __LINUX_MDIO_BITBANG_H
 
diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h
index a0d274fe08f1..7fde40e17c8b 100644
--- a/include/linux/mei_cl_bus.h
+++ b/include/linux/mei_cl_bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MEI_CL_BUS_H
 #define _LINUX_MEI_CL_BUS_H
 
diff --git a/include/linux/mem_encrypt.h b/include/linux/mem_encrypt.h
index 265a9cd21cb4..b310a9c18113 100644
--- a/include/linux/mem_encrypt.h
+++ b/include/linux/mem_encrypt.h
@@ -23,11 +23,14 @@
 
 #define sme_me_mask	0ULL
 
+static inline bool sme_active(void) { return false; }
+static inline bool sev_active(void) { return false; }
+
 #endif	/* CONFIG_ARCH_HAS_MEM_ENCRYPT */
 
-static inline bool sme_active(void)
+static inline bool mem_encrypt_active(void)
 {
-	return !!sme_me_mask;
+	return sme_me_mask;
 }
 
 static inline u64 sme_get_me_mask(void)
diff --git a/include/linux/memory.h b/include/linux/memory.h
index b723a686fc10..f71e732c77b2 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/memory.h - generic memory definition
  *
diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 0995e1a2b458..58e110aee7ab 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MEMORY_HOTPLUG_H
 #define __LINUX_MEMORY_HOTPLUG_H
 
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 3a58b4be1b0c..5228c62af416 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NUMA memory policies for Linux.
  * Copyright 2003,2004 Andi Kleen SuSE Labs
diff --git a/include/linux/mempool.h b/include/linux/mempool.h
index b1086c936507..b51f5c430c26 100644
--- a/include/linux/mempool.h
+++ b/include/linux/mempool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * memory buffer pool support
  */
diff --git a/include/linux/memremap.h b/include/linux/memremap.h
index 79f8ba7c3894..10d23c367048 100644
--- a/include/linux/memremap.h
+++ b/include/linux/memremap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MEMREMAP_H_
 #define _LINUX_MEMREMAP_H_
 #include <linux/mm.h>
diff --git a/include/linux/mfd/axp20x.h b/include/linux/mfd/axp20x.h
index e9c908c4fba8..78dc85365c4f 100644
--- a/include/linux/mfd/axp20x.h
+++ b/include/linux/mfd/axp20x.h
@@ -131,6 +131,9 @@ enum axp20x_variants {
 #define AXP803_DCDC6_V_OUT		0x25
 #define AXP803_DCDC_FREQ_CTRL		0x3b
 
+/* Other DCDC regulator control registers are the same as AXP803 */
+#define AXP813_DCDC7_V_OUT		0x26
+
 /* Interrupt */
 #define AXP152_IRQ1_EN			0x40
 #define AXP152_IRQ2_EN			0x41
diff --git a/include/linux/mfd/da903x.h b/include/linux/mfd/da903x.h
index 0aa3a1a49ee3..d1c57b8dbba4 100644
--- a/include/linux/mfd/da903x.h
+++ b/include/linux/mfd/da903x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PMIC_DA903X_H
 #define __LINUX_PMIC_DA903X_H
 
diff --git a/include/linux/mfd/dln2.h b/include/linux/mfd/dln2.h
index 004b24576da8..4cade9aa8edb 100644
--- a/include/linux/mfd/dln2.h
+++ b/include/linux/mfd/dln2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_DLN2_H
 #define __LINUX_USB_DLN2_H
 
diff --git a/include/linux/mfd/ds1wm.h b/include/linux/mfd/ds1wm.h
index 2227c6a75d84..43dfca1c9702 100644
--- a/include/linux/mfd/ds1wm.h
+++ b/include/linux/mfd/ds1wm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* MFD cell driver data for the DS1WM driver
  *
  * to be defined in the MFD device that is
diff --git a/include/linux/mfd/ezx-pcap.h b/include/linux/mfd/ezx-pcap.h
index 32a1b5cfeba1..ffde195e12b7 100644
--- a/include/linux/mfd/ezx-pcap.h
+++ b/include/linux/mfd/ezx-pcap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2009 Daniel Ribeiro <drwyrm@gmail.com>
  *
diff --git a/include/linux/mfd/imx25-tsadc.h b/include/linux/mfd/imx25-tsadc.h
index 7fe4b8c3baac..21f8adfefd1d 100644
--- a/include/linux/mfd/imx25-tsadc.h
+++ b/include/linux/mfd/imx25-tsadc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_INCLUDE_MFD_IMX25_TSADC_H_
 #define _LINUX_INCLUDE_MFD_IMX25_TSADC_H_
 
diff --git a/include/linux/mfd/ipaq-micro.h b/include/linux/mfd/ipaq-micro.h
index 5c4d29f6674f..ee48a4321c57 100644
--- a/include/linux/mfd/ipaq-micro.h
+++ b/include/linux/mfd/ipaq-micro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Header file for the compaq Micro MFD
  */
diff --git a/include/linux/mfd/max77843-private.h b/include/linux/mfd/max77843-private.h
index c19303b0ccfd..b8908bf8d315 100644
--- a/include/linux/mfd/max77843-private.h
+++ b/include/linux/mfd/max77843-private.h
@@ -245,10 +245,13 @@ enum max77843_irq_muic {
 #define MAX77843_CHG_OVER_CURRENT_BAT		(0x06 << 4)
 
 /* MAX77843 CHG_CNFG_00 register */
+#define MAX77843_CHG_MODE_MASK			0x0f
 #define MAX77843_CHG_DISABLE			0x00
 #define MAX77843_CHG_ENABLE			0x05
 #define MAX77843_CHG_MASK			0x01
+#define MAX77843_CHG_OTG_MASK			0x02
 #define MAX77843_CHG_BUCK_MASK			0x04
+#define MAX77843_CHG_BOOST_MASK			0x08
 
 /* MAX77843 CHG_CNFG_01 register */
 #define MAX77843_CHG_RESTART_THRESHOLD_100	0x00
@@ -347,6 +350,7 @@ enum max77843_irq_muic {
 /* MAX77843 CONTROL register */
 #define MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT	0
 #define MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT	3
+#define MAX77843_MUIC_CONTROL1_NOBCCOMP_SHIFT	6
 #define MAX77843_MUIC_CONTROL1_IDBEN_SHIFT	7
 #define MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT	0
 #define MAX77843_MUIC_CONTROL2_ADCEN_SHIFT	1
@@ -363,6 +367,7 @@ enum max77843_irq_muic {
 #define MAX77843_MUIC_CONTROL1_COMP1SW_MASK	(0x7 << MAX77843_MUIC_CONTROL1_COMP1SW_SHIFT)
 #define MAX77843_MUIC_CONTROL1_COMP2SW_MASK	(0x7 << MAX77843_MUIC_CONTROL1_COMP2SW_SHIFT)
 #define MAX77843_MUIC_CONTROL1_IDBEN_MASK	BIT(MAX77843_MUIC_CONTROL1_IDBEN_SHIFT)
+#define MAX77843_MUIC_CONTROL1_NOBCCOMP_MASK	BIT(MAX77843_MUIC_CONTROL1_NOBCCOMP_SHIFT)
 #define MAX77843_MUIC_CONTROL2_LOWPWR_MASK	BIT(MAX77843_MUIC_CONTROL2_LOWPWR_SHIFT)
 #define MAX77843_MUIC_CONTROL2_ADCEN_MASK	BIT(MAX77843_MUIC_CONTROL2_ADCEN_SHIFT)
 #define MAX77843_MUIC_CONTROL2_CPEN_MASK	BIT(MAX77843_MUIC_CONTROL2_CPEN_SHIFT)
diff --git a/include/linux/mfd/menelaus.h b/include/linux/mfd/menelaus.h
index 9e85ac06da89..ce489aba88ec 100644
--- a/include/linux/mfd/menelaus.h
+++ b/include/linux/mfd/menelaus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Functions to access Menelaus power management chip
  */
diff --git a/include/linux/mfd/palmas.h b/include/linux/mfd/palmas.h
index 6dec43826303..3c8568aa82a5 100644
--- a/include/linux/mfd/palmas.h
+++ b/include/linux/mfd/palmas.h
@@ -20,7 +20,7 @@
 #include <linux/leds.h>
 #include <linux/regmap.h>
 #include <linux/regulator/driver.h>
-#include <linux/extcon.h>
+#include <linux/extcon-provider.h>
 #include <linux/of_gpio.h>
 #include <linux/usb/phy_companion.h>
 
diff --git a/include/linux/mfd/pcf50633/pmic.h b/include/linux/mfd/pcf50633/pmic.h
index 2d3dbe53b235..eac0c3d8e984 100644
--- a/include/linux/mfd/pcf50633/pmic.h
+++ b/include/linux/mfd/pcf50633/pmic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MFD_PCF50633_PMIC_H
 #define __LINUX_MFD_PCF50633_PMIC_H
 
diff --git a/include/linux/mfd/qcom_rpm.h b/include/linux/mfd/qcom_rpm.h
index 742ebf1b76ca..4b6b644f1108 100644
--- a/include/linux/mfd/qcom_rpm.h
+++ b/include/linux/mfd/qcom_rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_RPM_H__
 #define __QCOM_RPM_H__
 
diff --git a/include/linux/mfd/rdc321x.h b/include/linux/mfd/rdc321x.h
index 442743a8f915..697933b2227b 100644
--- a/include/linux/mfd/rdc321x.h
+++ b/include/linux/mfd/rdc321x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RDC321X_MFD_H
 #define __RDC321X_MFD_H
 
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index 116816fb9110..7815d8db7eca 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -334,6 +334,7 @@
 #define DCM_DRP_RD_DATA_H		0xFC29
 #define SD_VPCLK0_CTL			0xFC2A
 #define SD_VPCLK1_CTL			0xFC2B
+#define   PHASE_SELECT_MASK		0x1F
 #define SD_DCMPS0_CTL			0xFC2C
 #define SD_DCMPS1_CTL			0xFC2D
 #define SD_VPTX_CTL			SD_VPCLK0_CTL
diff --git a/include/linux/mfd/tmio.h b/include/linux/mfd/tmio.h
index 15646740e2a8..e1cfe9194129 100644
--- a/include/linux/mfd/tmio.h
+++ b/include/linux/mfd/tmio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MFD_TMIO_H
 #define MFD_TMIO_H
 
diff --git a/include/linux/mfd/tps65218.h b/include/linux/mfd/tps65218.h
index bccd2d68b1e3..f069c518c0ed 100644
--- a/include/linux/mfd/tps65218.h
+++ b/include/linux/mfd/tps65218.h
@@ -246,24 +246,6 @@ enum tps65218_irqs {
 };
 
 /**
- * struct tps_info - packages regulator constraints
- * @id:			Id of the regulator
- * @name:		Voltage regulator name
- * @min_uV:		minimum micro volts
- * @max_uV:		minimum micro volts
- * @strobe:		sequencing strobe value for the regulator
- *
- * This data is used to check the regualtor voltage limits while setting.
- */
-struct tps_info {
-	int id;
-	const char *name;
-	int min_uV;
-	int max_uV;
-	int strobe;
-};
-
-/**
  * struct tps65218 - tps65218 sub-driver chip access routines
  *
  * Device data may be used to access the TPS65218 chip
@@ -280,7 +262,6 @@ struct tps65218 {
 	u32 irq_mask;
 	struct regmap_irq_chip_data *irq_data;
 	struct regulator_desc desc[TPS65218_NUM_REGULATOR];
-	struct tps_info *info[TPS65218_NUM_REGULATOR];
 	struct regmap *regmap;
 	u8 *strobes;
 };
diff --git a/include/linux/mfd/tps6586x.h b/include/linux/mfd/tps6586x.h
index 96187ed9f9bb..2fe68e481230 100644
--- a/include/linux/mfd/tps6586x.h
+++ b/include/linux/mfd/tps6586x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MFD_TPS6586X_H
 #define __LINUX_MFD_TPS6586X_H
 
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 643c7ae7d7b4..895ec0c4942e 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MIGRATE_H
 #define _LINUX_MIGRATE_H
 
diff --git a/include/linux/migrate_mode.h b/include/linux/migrate_mode.h
index bdf66af9b937..883c99249033 100644
--- a/include/linux/migrate_mode.h
+++ b/include/linux/migrate_mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MIGRATE_MODE_H_INCLUDED
 #define MIGRATE_MODE_H_INCLUDED
 /*
diff --git a/include/linux/mii.h b/include/linux/mii.h
index e870bfa6abfe..55000ee5c6ad 100644
--- a/include/linux/mii.h
+++ b/include/linux/mii.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/mii.h: definitions for MII-compatible transceivers
  * Originally drivers/net/sunhme.h.
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index 58751eae5f77..4de703d9e21f 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MISCDEVICE_H
 #define _LINUX_MISCDEVICE_H
 #include <linux/major.h>
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index eaf4ad209c8f..e32dbc4934db 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -980,7 +980,6 @@ enum mlx5_cap_type {
 	MLX5_CAP_RESERVED,
 	MLX5_CAP_VECTOR_CALC,
 	MLX5_CAP_QOS,
-	MLX5_CAP_FPGA,
 	/* NUM OF CAP Types */
 	MLX5_CAP_NUM
 };
@@ -1110,10 +1109,10 @@ enum mlx5_mcam_feature_groups {
 	MLX5_GET(mcam_reg, (mdev)->caps.mcam, mng_feature_cap_mask.enhanced_features.fld)
 
 #define MLX5_CAP_FPGA(mdev, cap) \
-	MLX5_GET(fpga_cap, (mdev)->caps.hca_cur[MLX5_CAP_FPGA], cap)
+	MLX5_GET(fpga_cap, (mdev)->caps.fpga, cap)
 
 #define MLX5_CAP64_FPGA(mdev, cap) \
-	MLX5_GET64(fpga_cap, (mdev)->caps.hca_cur[MLX5_CAP_FPGA], cap)
+	MLX5_GET64(fpga_cap, (mdev)->caps.fpga, cap)
 
 enum {
 	MLX5_CMD_STAT_OK			= 0x0,
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 02ff700e4f30..401c8972cc3a 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -774,6 +774,7 @@ struct mlx5_core_dev {
 		u32 hca_max[MLX5_CAP_NUM][MLX5_UN_SZ_DW(hca_cap_union)];
 		u32 pcam[MLX5_ST_SZ_DW(pcam_reg)];
 		u32 mcam[MLX5_ST_SZ_DW(mcam_reg)];
+		u32 fpga[MLX5_ST_SZ_DW(fpga_cap)];
 	} caps;
 	phys_addr_t		iseg_base;
 	struct mlx5_init_seg __iomem *iseg;
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index a528b35a022e..69772347f866 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -327,7 +327,8 @@ struct mlx5_ifc_flow_table_prop_layout_bits {
 	u8         reserved_at_80[0x18];
 	u8         log_max_destination[0x8];
 
-	u8         reserved_at_a0[0x18];
+	u8         log_max_flow_counter[0x8];
+	u8         reserved_at_a8[0x10];
 	u8         log_max_flow[0x8];
 
 	u8         reserved_at_c0[0x40];
diff --git a/include/linux/mlx5/port.h b/include/linux/mlx5/port.h
index c57d4b7de3a8..c59af8ab753a 100644
--- a/include/linux/mlx5/port.h
+++ b/include/linux/mlx5/port.h
@@ -157,6 +157,8 @@ int mlx5_set_port_prio_tc(struct mlx5_core_dev *mdev, u8 *prio_tc);
 int mlx5_query_port_prio_tc(struct mlx5_core_dev *mdev,
 			    u8 prio, u8 *tc);
 int mlx5_set_port_tc_group(struct mlx5_core_dev *mdev, u8 *tc_group);
+int mlx5_query_port_tc_group(struct mlx5_core_dev *mdev,
+			     u8 tc, u8 *tc_group);
 int mlx5_set_port_tc_bw_alloc(struct mlx5_core_dev *mdev, u8 *tc_bw);
 int mlx5_query_port_tc_bw_alloc(struct mlx5_core_dev *mdev,
 				u8 tc, u8 *bw_pct);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index f8c10d336e42..91b46f99b4d2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_H
 #define _LINUX_MM_H
 
@@ -240,7 +241,7 @@ extern unsigned int kobjsize(const void *objp);
 
 #if defined(CONFIG_X86_INTEL_MPX)
 /* MPX specific bounds table or bounds directory */
-# define VM_MPX		VM_HIGH_ARCH_BIT_4
+# define VM_MPX		VM_HIGH_ARCH_4
 #else
 # define VM_MPX		VM_NONE
 #endif
@@ -2495,7 +2496,7 @@ void vmemmap_populate_print_last(void);
 void vmemmap_free(unsigned long start, unsigned long end);
 #endif
 void register_page_bootmem_memmap(unsigned long section_nr, struct page *map,
-				  unsigned long size);
+				  unsigned long nr_pages);
 
 enum mf_flags {
 	MF_COUNT_INCREASED = 1 << 0,
diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h
index 25438b2b6f22..c30b32e3c862 100644
--- a/include/linux/mm_inline.h
+++ b/include/linux/mm_inline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MM_INLINE_H
 #define LINUX_MM_INLINE_H
 
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 46f4ecf5479a..c85f11dafd56 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_TYPES_H
 #define _LINUX_MM_TYPES_H
 
@@ -445,6 +446,9 @@ struct mm_struct {
 	unsigned long flags; /* Must use atomic bitops to access the bits */
 
 	struct core_state *core_state; /* coredumping support */
+#ifdef CONFIG_MEMBARRIER
+	atomic_t membarrier_state;
+#endif
 #ifdef CONFIG_AIO
 	spinlock_t			ioctx_lock;
 	struct kioctx_table __rcu	*ioctx_table;
diff --git a/include/linux/mm_types_task.h b/include/linux/mm_types_task.h
index fc412fbd80bd..5fe87687664c 100644
--- a/include/linux/mm_types_task.h
+++ b/include/linux/mm_types_task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_TYPES_TASK_H
 #define _LINUX_MM_TYPES_TASK_H
 
diff --git a/include/linux/mman.h b/include/linux/mman.h
index c8367041fafd..7c87b6652244 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMAN_H
 #define _LINUX_MMAN_H
 
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index f3f2d07feb2a..e7743eca1021 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -255,6 +255,10 @@ struct mmc_supply {
 	struct regulator *vqmmc;	/* Optional Vccq supply */
 };
 
+struct mmc_ctx {
+	struct task_struct *task;
+};
+
 struct mmc_host {
 	struct device		*parent;
 	struct device		class_dev;
@@ -316,7 +320,7 @@ struct mmc_host {
 #define MMC_CAP_UHS_SDR50	(1 << 18)	/* Host supports UHS SDR50 mode */
 #define MMC_CAP_UHS_SDR104	(1 << 19)	/* Host supports UHS SDR104 mode */
 #define MMC_CAP_UHS_DDR50	(1 << 20)	/* Host supports UHS DDR50 mode */
-#define MMC_CAP_NO_BOUNCE_BUFF	(1 << 21)	/* Disable bounce buffers on host */
+/* (1 << 21) is free for reuse */
 #define MMC_CAP_DRIVER_TYPE_A	(1 << 23)	/* Host supports Driver Type A */
 #define MMC_CAP_DRIVER_TYPE_C	(1 << 24)	/* Host supports Driver Type C */
 #define MMC_CAP_DRIVER_TYPE_D	(1 << 25)	/* Host supports Driver Type D */
@@ -350,6 +354,8 @@ struct mmc_host {
 #define MMC_CAP2_CQE		(1 << 23)	/* Has eMMC command queue engine */
 #define MMC_CAP2_CQE_DCMD	(1 << 24)	/* CQE can issue a direct command */
 
+	int			fixed_drv_type;	/* fixed driver type for non-removable media */
+
 	mmc_pm_flag_t		pm_caps;	/* supported pm features */
 
 	/* host specific block data */
@@ -388,8 +394,9 @@ struct mmc_host {
 	struct mmc_card		*card;		/* device attached to this host */
 
 	wait_queue_head_t	wq;
-	struct task_struct	*claimer;	/* task that has host claimed */
+	struct mmc_ctx		*claimer;	/* context that has host claimed */
 	int			claim_cnt;	/* "claim" nesting count */
+	struct mmc_ctx		default_ctx;	/* default context */
 
 	struct delayed_work	detect;
 	int			detect_change;	/* card detect flag */
@@ -469,6 +476,8 @@ void mmc_detect_change(struct mmc_host *, unsigned long delay);
 void mmc_request_done(struct mmc_host *, struct mmc_request *);
 void mmc_command_done(struct mmc_host *host, struct mmc_request *mrq);
 
+void mmc_cqe_request_done(struct mmc_host *host, struct mmc_request *mrq);
+
 static inline void mmc_signal_sdio_irq(struct mmc_host *host)
 {
 	host->ops->enable_sdio_irq(host, 0);
diff --git a/include/linux/mmc/sdhci-pci-data.h b/include/linux/mmc/sdhci-pci-data.h
index fda15b6d4135..1d42872d22f3 100644
--- a/include/linux/mmc/sdhci-pci-data.h
+++ b/include/linux/mmc/sdhci-pci-data.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MMC_SDHCI_PCI_DATA_H
 #define LINUX_MMC_SDHCI_PCI_DATA_H
 
@@ -14,7 +15,4 @@ struct sdhci_pci_data {
 
 extern struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev,
 				int slotno);
-
-extern int sdhci_pci_spt_drive_strength;
-
 #endif
diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
index abacd5484bc0..cdd66a5fbd5e 100644
--- a/include/linux/mmc/sdio_ids.h
+++ b/include/linux/mmc/sdio_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SDIO Classes, Interface Types, Manufacturer IDs, etc.
  */
diff --git a/include/linux/mmdebug.h b/include/linux/mmdebug.h
index 451a811f48f2..57b0030d3800 100644
--- a/include/linux/mmdebug.h
+++ b/include/linux/mmdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MM_DEBUG_H
 #define LINUX_MM_DEBUG_H 1
 
diff --git a/include/linux/mmiotrace.h b/include/linux/mmiotrace.h
index 3ba327af055c..88236849894d 100644
--- a/include/linux/mmiotrace.h
+++ b/include/linux/mmiotrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMIOTRACE_H
 #define _LINUX_MMIOTRACE_H
 
diff --git a/include/linux/mmu_context.h b/include/linux/mmu_context.h
index a4441784503b..d9a543a9e1cc 100644
--- a/include/linux/mmu_context.h
+++ b/include/linux/mmu_context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMU_CONTEXT_H
 #define _LINUX_MMU_CONTEXT_H
 
diff --git a/include/linux/mmu_notifier.h b/include/linux/mmu_notifier.h
index 7b2e31b1745a..2cf1c3c807f6 100644
--- a/include/linux/mmu_notifier.h
+++ b/include/linux/mmu_notifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMU_NOTIFIER_H
 #define _LINUX_MMU_NOTIFIER_H
 
@@ -400,6 +401,11 @@ extern void mmu_notifier_synchronize(void);
 
 #else /* CONFIG_MMU_NOTIFIER */
 
+static inline int mm_has_notifiers(struct mm_struct *mm)
+{
+	return 0;
+}
+
 static inline void mmu_notifier_release(struct mm_struct *mm)
 {
 }
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 356a814e7c8e..a507f43ad221 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MMZONE_H
 #define _LINUX_MMZONE_H
 
@@ -1094,8 +1095,14 @@ static inline unsigned long early_pfn_to_nid(unsigned long pfn)
 #error Allocator MAX_ORDER exceeds SECTION_SIZE
 #endif
 
-#define pfn_to_section_nr(pfn) ((pfn) >> PFN_SECTION_SHIFT)
-#define section_nr_to_pfn(sec) ((sec) << PFN_SECTION_SHIFT)
+static inline unsigned long pfn_to_section_nr(unsigned long pfn)
+{
+	return pfn >> PFN_SECTION_SHIFT;
+}
+static inline unsigned long section_nr_to_pfn(unsigned long sec)
+{
+	return sec << PFN_SECTION_SHIFT;
+}
 
 #define SECTION_ALIGN_UP(pfn)	(((pfn) + PAGES_PER_SECTION - 1) & PAGE_SECTION_MASK)
 #define SECTION_ALIGN_DOWN(pfn)	((pfn) & PAGE_SECTION_MASK)
@@ -1144,13 +1151,17 @@ struct mem_section {
 #define SECTION_ROOT_MASK	(SECTIONS_PER_ROOT - 1)
 
 #ifdef CONFIG_SPARSEMEM_EXTREME
-extern struct mem_section *mem_section[NR_SECTION_ROOTS];
+extern struct mem_section **mem_section;
 #else
 extern struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT];
 #endif
 
 static inline struct mem_section *__nr_to_section(unsigned long nr)
 {
+#ifdef CONFIG_SPARSEMEM_EXTREME
+	if (!mem_section)
+		return NULL;
+#endif
 	if (!mem_section[SECTION_NR_TO_ROOT(nr)])
 		return NULL;
 	return &mem_section[SECTION_NR_TO_ROOT(nr)][nr & SECTION_ROOT_MASK];
diff --git a/include/linux/mnt_namespace.h b/include/linux/mnt_namespace.h
index 12b2ab510323..35942084cd40 100644
--- a/include/linux/mnt_namespace.h
+++ b/include/linux/mnt_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NAMESPACE_H_
 #define _NAMESPACE_H_
 #ifdef __KERNEL__
diff --git a/include/linux/mod_devicetable.h b/include/linux/mod_devicetable.h
index 694cebb50f72..1c2e8d6b7274 100644
--- a/include/linux/mod_devicetable.h
+++ b/include/linux/mod_devicetable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Device tables which are exported to userspace via
  * scripts/mod/file2alias.c.  You must keep that file in sync with this
@@ -293,6 +294,7 @@ struct pcmcia_device_id {
 #define INPUT_DEVICE_ID_SND_MAX		0x07
 #define INPUT_DEVICE_ID_FF_MAX		0x7f
 #define INPUT_DEVICE_ID_SW_MAX		0x0f
+#define INPUT_DEVICE_ID_PROP_MAX	0x1f
 
 #define INPUT_DEVICE_ID_MATCH_BUS	1
 #define INPUT_DEVICE_ID_MATCH_VENDOR	2
@@ -308,6 +310,7 @@ struct pcmcia_device_id {
 #define INPUT_DEVICE_ID_MATCH_SNDBIT	0x0400
 #define INPUT_DEVICE_ID_MATCH_FFBIT	0x0800
 #define INPUT_DEVICE_ID_MATCH_SWBIT	0x1000
+#define INPUT_DEVICE_ID_MATCH_PROPBIT	0x2000
 
 struct input_device_id {
 
@@ -327,6 +330,7 @@ struct input_device_id {
 	kernel_ulong_t sndbit[INPUT_DEVICE_ID_SND_MAX / BITS_PER_LONG + 1];
 	kernel_ulong_t ffbit[INPUT_DEVICE_ID_FF_MAX / BITS_PER_LONG + 1];
 	kernel_ulong_t swbit[INPUT_DEVICE_ID_SW_MAX / BITS_PER_LONG + 1];
+	kernel_ulong_t propbit[INPUT_DEVICE_ID_PROP_MAX / BITS_PER_LONG + 1];
 
 	kernel_ulong_t driver_info;
 };
diff --git a/include/linux/module.h b/include/linux/module.h
index e7bdd549e527..c69b49abe877 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -209,7 +209,7 @@ extern void cleanup_module(void);
 #ifdef MODULE
 /* Creates an alias so file2alias.c can find device table. */
 #define MODULE_DEVICE_TABLE(type, name)					\
-extern const typeof(name) __mod_##type##__##name##_device_table		\
+extern typeof(name) __mod_##type##__##name##_device_table		\
   __attribute__ ((unused, alias(__stringify(name))))
 #else  /* !MODULE */
 #define MODULE_DEVICE_TABLE(type, name)
@@ -639,6 +639,8 @@ static inline bool is_livepatch_module(struct module *mod)
 }
 #endif /* CONFIG_LIVEPATCH */
 
+bool is_module_sig_enforced(void);
+
 #else /* !CONFIG_MODULES... */
 
 static inline struct module *__module_address(unsigned long addr)
@@ -753,6 +755,11 @@ static inline bool module_requested_async_probing(struct module *module)
 	return false;
 }
 
+static inline bool is_module_sig_enforced(void)
+{
+	return false;
+}
+
 #endif /* CONFIG_MODULES */
 
 #ifdef CONFIG_SYSFS
diff --git a/include/linux/moduleloader.h b/include/linux/moduleloader.h
index 4d0cb9bba93e..31013c2effd3 100644
--- a/include/linux/moduleloader.h
+++ b/include/linux/moduleloader.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MODULELOADER_H
 #define _LINUX_MODULELOADER_H
 /* The stuff needed for archs to support modules. */
diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
index 1ee7b30dafec..1d7140fef154 100644
--- a/include/linux/moduleparam.h
+++ b/include/linux/moduleparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MODULE_PARAMS_H
 #define _LINUX_MODULE_PARAMS_H
 /* (C) Copyright 2001, 2002 Rusty Russell IBM Corporation */
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 1ce85e6fd95f..45b1f56c6c2f 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  * Definitions for mount interface. This describes the in the kernel build 
diff --git a/include/linux/mpage.h b/include/linux/mpage.h
index 068a0c9946af..001f1fcf9836 100644
--- a/include/linux/mpage.h
+++ b/include/linux/mpage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/mpage.h
  *
diff --git a/include/linux/mpls.h b/include/linux/mpls.h
index 384fb22b6c43..ae1a188c011b 100644
--- a/include/linux/mpls.h
+++ b/include/linux/mpls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MPLS_H
 #define _LINUX_MPLS_H
 
diff --git a/include/linux/mpls_iptunnel.h b/include/linux/mpls_iptunnel.h
index ef29eb2d6dfd..140c56954fbe 100644
--- a/include/linux/mpls_iptunnel.h
+++ b/include/linux/mpls_iptunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MPLS_IPTUNNEL_H
 #define _LINUX_MPLS_IPTUNNEL_H
 
diff --git a/include/linux/mroute.h b/include/linux/mroute.h
index d7f63339ef0b..65a70a7c51c1 100644
--- a/include/linux/mroute.h
+++ b/include/linux/mroute.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MROUTE_H
 #define __LINUX_MROUTE_H
 
diff --git a/include/linux/mroute6.h b/include/linux/mroute6.h
index ce44e3e96d27..3014c52bfd86 100644
--- a/include/linux/mroute6.h
+++ b/include/linux/mroute6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MROUTE6_H
 #define __LINUX_MROUTE6_H
 
diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h
index e1b163f912fb..b7a5d4c72f56 100644
--- a/include/linux/msdos_fs.h
+++ b/include/linux/msdos_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MSDOS_FS_H
 #define _LINUX_MSDOS_FS_H
 
diff --git a/include/linux/msg.h b/include/linux/msg.h
index a001305f5a79..0a7eefeee0d1 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MSG_H
 #define _LINUX_MSG_H
 
 #include <linux/list.h>
+#include <linux/time64.h>
 #include <uapi/linux/msg.h>
 
 /* one msg_msg structure for each message */
@@ -17,9 +19,9 @@ struct msg_msg {
 /* one msq_queue structure for each present queue on the system */
 struct msg_queue {
 	struct kern_ipc_perm q_perm;
-	time_t q_stime;			/* last msgsnd time */
-	time_t q_rtime;			/* last msgrcv time */
-	time_t q_ctime;			/* last change time */
+	time64_t q_stime;		/* last msgsnd time */
+	time64_t q_rtime;		/* last msgrcv time */
+	time64_t q_ctime;		/* last change time */
 	unsigned long q_cbytes;		/* current number of bytes on queue */
 	unsigned long q_qnum;		/* number of messages in queue */
 	unsigned long q_qbytes;		/* max number of bytes on queue */
@@ -31,12 +33,4 @@ struct msg_queue {
 	struct list_head q_senders;
 } __randomize_layout;
 
-/* Helper routines for sys_msgsnd and sys_msgrcv */
-extern long do_msgsnd(int msqid, long mtype, void __user *mtext,
-			size_t msgsz, int msgflg);
-extern long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp,
-		      int msgflg,
-		      long (*msg_fill)(void __user *, struct msg_msg *,
-				       size_t));
-
 #endif /* _LINUX_MSG_H */
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 80e3b562bef6..1f1bbb5b4679 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MSI_H
 #define LINUX_MSI_H
 
@@ -283,6 +284,11 @@ enum {
 	MSI_FLAG_PCI_MSIX		= (1 << 3),
 	/* Needs early activate, required for PCI */
 	MSI_FLAG_ACTIVATE_EARLY		= (1 << 4),
+	/*
+	 * Must reactivate when irq is started even when
+	 * MSI_FLAG_ACTIVATE_EARLY has been set.
+	 */
+	MSI_FLAG_MUST_REACTIVATE	= (1 << 5),
 };
 
 int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
diff --git a/include/linux/mtd/inftl.h b/include/linux/mtd/inftl.h
index 8255118be0f0..fdfff87066a9 100644
--- a/include/linux/mtd/inftl.h
+++ b/include/linux/mtd/inftl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	inftl.h -- defines to support the Inverse NAND Flash Translation Layer
  *
diff --git a/include/linux/mtd/mtdram.h b/include/linux/mtd/mtdram.h
index 628a6a21ddf0..ee8f95643f9b 100644
--- a/include/linux/mtd/mtdram.h
+++ b/include/linux/mtd/mtdram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MTD_MTDRAM_H__
 #define __MTD_MTDRAM_H__
 
diff --git a/include/linux/mtd/nand-gpio.h b/include/linux/mtd/nand-gpio.h
index be4f45d89be2..fdef72d6e198 100644
--- a/include/linux/mtd/nand-gpio.h
+++ b/include/linux/mtd/nand-gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MTD_NAND_GPIO_H
 #define __LINUX_MTD_NAND_GPIO_H
 
diff --git a/include/linux/mtd/pfow.h b/include/linux/mtd/pfow.h
index 42ff7ff09bf5..122f3439e1af 100644
--- a/include/linux/mtd/pfow.h
+++ b/include/linux/mtd/pfow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Primary function overlay window definitions
  * and service functions used by LPDDR chips
  */
diff --git a/include/linux/mtd/qinfo.h b/include/linux/mtd/qinfo.h
index b532ce524dae..df5b9fddea16 100644
--- a/include/linux/mtd/qinfo.h
+++ b/include/linux/mtd/qinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_MTD_QINFO_H
 #define __LINUX_MTD_QINFO_H
 
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index ffcba1f337da..153274f78402 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Mutexes: blocking mutual exclusion locks
  *
diff --git a/include/linux/mv643xx_eth.h b/include/linux/mv643xx_eth.h
index 61a0da38d0cb..3682ae75c7aa 100644
--- a/include/linux/mv643xx_eth.h
+++ b/include/linux/mv643xx_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MV-643XX ethernet platform device data definition file.
  */
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 8b4794e83196..a982bb7cd480 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NAMEI_H
 #define _LINUX_NAMEI_H
 
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f535779d9dc1..2eaac7d75af4 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3694,6 +3694,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 				    unsigned char name_assign_type,
 				    void (*setup)(struct net_device *),
 				    unsigned int txqs, unsigned int rxqs);
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+		       const char *name);
+
 #define alloc_netdev(sizeof_priv, name, name_assign_type, setup) \
 	alloc_netdev_mqs(sizeof_priv, name, name_assign_type, setup, 1, 1)
 
diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index f84bca1703cd..b24e9b101651 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NETFILTER_H
 #define __LINUX_NETFILTER_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_bitmap.h b/include/linux/netfilter/ipset/ip_set_bitmap.h
index 366d6c0ea04f..2dddbc6dcac7 100644
--- a/include/linux/netfilter/ipset/ip_set_bitmap.h
+++ b/include/linux/netfilter/ipset/ip_set_bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IP_SET_BITMAP_H
 #define __IP_SET_BITMAP_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_getport.h b/include/linux/netfilter/ipset/ip_set_getport.h
index 90d09300e954..ac6a11d38a19 100644
--- a/include/linux/netfilter/ipset/ip_set_getport.h
+++ b/include/linux/netfilter/ipset/ip_set_getport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IP_SET_GETPORT_H
 #define _IP_SET_GETPORT_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_hash.h b/include/linux/netfilter/ipset/ip_set_hash.h
index f98ddfb094cb..838abab672af 100644
--- a/include/linux/netfilter/ipset/ip_set_hash.h
+++ b/include/linux/netfilter/ipset/ip_set_hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IP_SET_HASH_H
 #define __IP_SET_HASH_H
 
diff --git a/include/linux/netfilter/ipset/ip_set_list.h b/include/linux/netfilter/ipset/ip_set_list.h
index fe2622a00151..a61fe2a7e655 100644
--- a/include/linux/netfilter/ipset/ip_set_list.h
+++ b/include/linux/netfilter/ipset/ip_set_list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IP_SET_LIST_H
 #define __IP_SET_LIST_H
 
diff --git a/include/linux/netfilter/ipset/pfxlen.h b/include/linux/netfilter/ipset/pfxlen.h
index 1afbb94b4b65..f59094e6158b 100644
--- a/include/linux/netfilter/ipset/pfxlen.h
+++ b/include/linux/netfilter/ipset/pfxlen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PFXLEN_H
 #define _PFXLEN_H
 
diff --git a/include/linux/netfilter/nf_conntrack_amanda.h b/include/linux/netfilter/nf_conntrack_amanda.h
index 4b59a1584959..34345e543ba2 100644
--- a/include/linux/netfilter/nf_conntrack_amanda.h
+++ b/include/linux/netfilter/nf_conntrack_amanda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_AMANDA_H
 #define _NF_CONNTRACK_AMANDA_H
 /* AMANDA tracking. */
diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h
index 1d1ef4e20512..03097fa70975 100644
--- a/include/linux/netfilter/nf_conntrack_common.h
+++ b/include/linux/netfilter/nf_conntrack_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_COMMON_H
 #define _NF_CONNTRACK_COMMON_H
 
diff --git a/include/linux/netfilter/nf_conntrack_dccp.h b/include/linux/netfilter/nf_conntrack_dccp.h
index ff721d7325cf..ace0f952d50f 100644
--- a/include/linux/netfilter/nf_conntrack_dccp.h
+++ b/include/linux/netfilter/nf_conntrack_dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_DCCP_H
 #define _NF_CONNTRACK_DCCP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_ftp.h b/include/linux/netfilter/nf_conntrack_ftp.h
index 5f818b01e035..73a296dfd019 100644
--- a/include/linux/netfilter/nf_conntrack_ftp.h
+++ b/include/linux/netfilter/nf_conntrack_ftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_FTP_H
 #define _NF_CONNTRACK_FTP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_h323.h b/include/linux/netfilter/nf_conntrack_h323.h
index 858d9b214053..f76ed373a2a5 100644
--- a/include/linux/netfilter/nf_conntrack_h323.h
+++ b/include/linux/netfilter/nf_conntrack_h323.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_H323_H
 #define _NF_CONNTRACK_H323_H
 
diff --git a/include/linux/netfilter/nf_conntrack_irc.h b/include/linux/netfilter/nf_conntrack_irc.h
index 4bb9bae67176..00c2b74206e1 100644
--- a/include/linux/netfilter/nf_conntrack_irc.h
+++ b/include/linux/netfilter/nf_conntrack_irc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_IRC_H
 #define _NF_CONNTRACK_IRC_H
 
diff --git a/include/linux/netfilter/nf_conntrack_pptp.h b/include/linux/netfilter/nf_conntrack_pptp.h
index 2ab2830316b7..833a5b2255ea 100644
--- a/include/linux/netfilter/nf_conntrack_pptp.h
+++ b/include/linux/netfilter/nf_conntrack_pptp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* PPTP constants and structs */
 #ifndef _NF_CONNTRACK_PPTP_H
 #define _NF_CONNTRACK_PPTP_H
diff --git a/include/linux/netfilter/nf_conntrack_proto_gre.h b/include/linux/netfilter/nf_conntrack_proto_gre.h
index dee0acd0dd31..b8d95564bd53 100644
--- a/include/linux/netfilter/nf_conntrack_proto_gre.h
+++ b/include/linux/netfilter/nf_conntrack_proto_gre.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CONNTRACK_PROTO_GRE_H
 #define _CONNTRACK_PROTO_GRE_H
 #include <asm/byteorder.h>
diff --git a/include/linux/netfilter/nf_conntrack_sane.h b/include/linux/netfilter/nf_conntrack_sane.h
index 4767d6e23e97..7d2de44edce3 100644
--- a/include/linux/netfilter/nf_conntrack_sane.h
+++ b/include/linux/netfilter/nf_conntrack_sane.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SANE_H
 #define _NF_CONNTRACK_SANE_H
 /* SANE tracking. */
diff --git a/include/linux/netfilter/nf_conntrack_sctp.h b/include/linux/netfilter/nf_conntrack_sctp.h
index 22a16a23cd8a..9a33f171aa82 100644
--- a/include/linux/netfilter/nf_conntrack_sctp.h
+++ b/include/linux/netfilter/nf_conntrack_sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SCTP_H
 #define _NF_CONNTRACK_SCTP_H
 /* SCTP tracking. */
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index d5af3c27fb7d..c7fc38807a33 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NF_CONNTRACK_SIP_H__
 #define __NF_CONNTRACK_SIP_H__
 #ifdef __KERNEL__
diff --git a/include/linux/netfilter/nf_conntrack_snmp.h b/include/linux/netfilter/nf_conntrack_snmp.h
index 064bc63a5346..818088c47475 100644
--- a/include/linux/netfilter/nf_conntrack_snmp.h
+++ b/include/linux/netfilter/nf_conntrack_snmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SNMP_H
 #define _NF_CONNTRACK_SNMP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_tcp.h b/include/linux/netfilter/nf_conntrack_tcp.h
index 22db9614b584..f9e3a663037b 100644
--- a/include/linux/netfilter/nf_conntrack_tcp.h
+++ b/include/linux/netfilter/nf_conntrack_tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TCP_H
 #define _NF_CONNTRACK_TCP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_tftp.h b/include/linux/netfilter/nf_conntrack_tftp.h
index c78d38fdb050..5769e12dd0a2 100644
--- a/include/linux/netfilter/nf_conntrack_tftp.h
+++ b/include/linux/netfilter/nf_conntrack_tftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TFTP_H
 #define _NF_CONNTRACK_TFTP_H
 
diff --git a/include/linux/netfilter/nf_conntrack_zones_common.h b/include/linux/netfilter/nf_conntrack_zones_common.h
index 5d7cf36d4766..8f3905e12a64 100644
--- a/include/linux/netfilter/nf_conntrack_zones_common.h
+++ b/include/linux/netfilter/nf_conntrack_zones_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_ZONES_COMMON_H
 #define _NF_CONNTRACK_ZONES_COMMON_H
 
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 41d04e9d088a..495ba4dd9da5 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFNETLINK_H
 #define _NFNETLINK_H
 
@@ -66,7 +67,7 @@ static inline bool lockdep_nfnl_is_held(__u8 subsys_id)
  * @ss: The nfnetlink subsystem ID
  *
  * Return the value of the specified RCU-protected pointer, but omit
- * both the smp_read_barrier_depends() and the ACCESS_ONCE(), because
+ * both the smp_read_barrier_depends() and the READ_ONCE(), because
  * caller holds the NFNL subsystem mutex.
  */
 #define nfnl_dereference(p, ss)					\
diff --git a/include/linux/netfilter/nfnetlink_acct.h b/include/linux/netfilter/nfnetlink_acct.h
index 664da0048625..b4d741195c28 100644
--- a/include/linux/netfilter/nfnetlink_acct.h
+++ b/include/linux/netfilter/nfnetlink_acct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFNL_ACCT_H_
 #define _NFNL_ACCT_H_
 
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index b3044c2c62cb..33f7530f96b9 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _X_TABLES_H
 #define _X_TABLES_H
 
diff --git a/include/linux/netfilter/xt_hashlimit.h b/include/linux/netfilter/xt_hashlimit.h
index 0fc458bde80b..169d03983589 100644
--- a/include/linux/netfilter/xt_hashlimit.h
+++ b/include/linux/netfilter/xt_hashlimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XT_HASHLIMIT_H
 #define _XT_HASHLIMIT_H
 
diff --git a/include/linux/netfilter/xt_physdev.h b/include/linux/netfilter/xt_physdev.h
index 5b5e41716d69..4ca0593949cd 100644
--- a/include/linux/netfilter/xt_physdev.h
+++ b/include/linux/netfilter/xt_physdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XT_PHYSDEV_H
 #define _XT_PHYSDEV_H
 
diff --git a/include/linux/netfilter_arp/arp_tables.h b/include/linux/netfilter_arp/arp_tables.h
index 029b95e8924e..e98028f00e47 100644
--- a/include/linux/netfilter_arp/arp_tables.h
+++ b/include/linux/netfilter_arp/arp_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 	Format of an ARP firewall descriptor
  *
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index 2ed40c402b5e..b671fdfd212b 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BRIDGE_NETFILTER_H
 #define __LINUX_BRIDGE_NETFILTER_H
 
diff --git a/include/linux/netfilter_bridge/ebt_802_3.h b/include/linux/netfilter_bridge/ebt_802_3.h
index e17e8bfb4e8b..c6147f9c0d80 100644
--- a/include/linux/netfilter_bridge/ebt_802_3.h
+++ b/include/linux/netfilter_bridge/ebt_802_3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BRIDGE_EBT_802_3_H
 #define __LINUX_BRIDGE_EBT_802_3_H
 
diff --git a/include/linux/netfilter_bridge/ebtables.h b/include/linux/netfilter_bridge/ebtables.h
index 2c2a5514b0df..0773b5a032f1 100644
--- a/include/linux/netfilter_bridge/ebtables.h
+++ b/include/linux/netfilter_bridge/ebtables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  ebtables
  *
@@ -108,9 +109,10 @@ struct ebt_table {
 
 #define EBT_ALIGN(s) (((s) + (__alignof__(struct _xt_align)-1)) & \
 		     ~(__alignof__(struct _xt_align)-1))
-extern struct ebt_table *ebt_register_table(struct net *net,
-					    const struct ebt_table *table,
-					    const struct nf_hook_ops *);
+extern int ebt_register_table(struct net *net,
+			      const struct ebt_table *table,
+			      const struct nf_hook_ops *ops,
+			      struct ebt_table **res);
 extern void ebt_unregister_table(struct net *net, struct ebt_table *table,
 				 const struct nf_hook_ops *);
 extern unsigned int ebt_do_table(struct sk_buff *skb,
diff --git a/include/linux/netfilter_defs.h b/include/linux/netfilter_defs.h
index d3a7f8597e82..dc6111adea06 100644
--- a/include/linux/netfilter_defs.h
+++ b/include/linux/netfilter_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NETFILTER_CORE_H_
 #define __LINUX_NETFILTER_CORE_H_
 
diff --git a/include/linux/netfilter_ingress.h b/include/linux/netfilter_ingress.h
index 8d5dae1e2ff8..554c920691dd 100644
--- a/include/linux/netfilter_ingress.h
+++ b/include/linux/netfilter_ingress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NETFILTER_INGRESS_H_
 #define _NETFILTER_INGRESS_H_
 
diff --git a/include/linux/netfilter_ipv4/ip_tables.h b/include/linux/netfilter_ipv4/ip_tables.h
index 7bfc5893ec31..d026e63a5aa4 100644
--- a/include/linux/netfilter_ipv4/ip_tables.h
+++ b/include/linux/netfilter_ipv4/ip_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 25-Jul-1998 Major changes to allow for ip chain table
  *
diff --git a/include/linux/netfilter_ipv6/ip6_tables.h b/include/linux/netfilter_ipv6/ip6_tables.h
index b21c392d6012..99cbfd3add40 100644
--- a/include/linux/netfilter_ipv6/ip6_tables.h
+++ b/include/linux/netfilter_ipv6/ip6_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * 25-Jul-1998 Major changes to allow for ip chain table
  *
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index 8664fd26eb5d..6ddb4a5da371 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NETLINK_H
 #define __LINUX_NETLINK_H
 
diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index 27c0aaa22cb0..67662d01130a 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common code for low-level network console, dump, and debugger code
  *
diff --git a/include/linux/nfs.h b/include/linux/nfs.h
index 610af5155ef2..0dc7ad38a0da 100644
--- a/include/linux/nfs.h
+++ b/include/linux/nfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFS protocol definitions
  *
diff --git a/include/linux/nfs3.h b/include/linux/nfs3.h
index a778ad8e3afd..404b8f724fc9 100644
--- a/include/linux/nfs3.h
+++ b/include/linux/nfs3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * NFSv3 protocol definitions
  */
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 47239c336688..47adac640191 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/nfs4.h
  *
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index a0282ceaa48b..f0015f801a78 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/nfs_fs.h
  *
diff --git a/include/linux/nfs_fs_i.h b/include/linux/nfs_fs_i.h
index a5c50d97341e..98f9268fcfc2 100644
--- a/include/linux/nfs_fs_i.h
+++ b/include/linux/nfs_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFS_FS_I
 #define _NFS_FS_I
 
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 74c44665e6d3..286b71c418b4 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFS_FS_SB
 #define _NFS_FS_SB
 
diff --git a/include/linux/nfs_iostat.h b/include/linux/nfs_iostat.h
index 9dcbbe9a51fb..027874c36c88 100644
--- a/include/linux/nfs_iostat.h
+++ b/include/linux/nfs_iostat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  User-space visible declarations for NFS client per-mount
  *  point statistics
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index d117120c9b6e..e27572d30d97 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/nfs_page.h
  *
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 164d5359d4ab..6959968dc36a 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NFS_XDR_H
 #define _LINUX_NFS_XDR_H
 
diff --git a/include/linux/nfsacl.h b/include/linux/nfsacl.h
index 5e69e67b31ab..103d44695323 100644
--- a/include/linux/nfsacl.h
+++ b/include/linux/nfsacl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File: linux/nfsacl.h
  *
diff --git a/include/linux/nls.h b/include/linux/nls.h
index 520681b68208..499e486b3722 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NLS_H
 #define _LINUX_NLS_H
 
diff --git a/include/linux/nmi.h b/include/linux/nmi.h
index a36abe2da13e..b8d868d23e79 100644
--- a/include/linux/nmi.h
+++ b/include/linux/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/nmi.h
  */
@@ -12,11 +13,31 @@
 
 #ifdef CONFIG_LOCKUP_DETECTOR
 void lockup_detector_init(void);
+void lockup_detector_soft_poweroff(void);
+void lockup_detector_cleanup(void);
+bool is_hardlockup(void);
+
+extern int watchdog_user_enabled;
+extern int nmi_watchdog_user_enabled;
+extern int soft_watchdog_user_enabled;
+extern int watchdog_thresh;
+extern unsigned long watchdog_enabled;
+
+extern struct cpumask watchdog_cpumask;
+extern unsigned long *watchdog_cpumask_bits;
+#ifdef CONFIG_SMP
+extern int sysctl_softlockup_all_cpu_backtrace;
+extern int sysctl_hardlockup_all_cpu_backtrace;
 #else
-static inline void lockup_detector_init(void)
-{
-}
-#endif
+#define sysctl_softlockup_all_cpu_backtrace 0
+#define sysctl_hardlockup_all_cpu_backtrace 0
+#endif /* !CONFIG_SMP */
+
+#else /* CONFIG_LOCKUP_DETECTOR */
+static inline void lockup_detector_init(void) { }
+static inline void lockup_detector_soft_poweroff(void) { }
+static inline void lockup_detector_cleanup(void) { }
+#endif /* !CONFIG_LOCKUP_DETECTOR */
 
 #ifdef CONFIG_SOFTLOCKUP_DETECTOR
 extern void touch_softlockup_watchdog_sched(void);
@@ -24,29 +45,17 @@ extern void touch_softlockup_watchdog(void);
 extern void touch_softlockup_watchdog_sync(void);
 extern void touch_all_softlockup_watchdogs(void);
 extern unsigned int  softlockup_panic;
-extern int soft_watchdog_enabled;
-extern atomic_t watchdog_park_in_progress;
 #else
-static inline void touch_softlockup_watchdog_sched(void)
-{
-}
-static inline void touch_softlockup_watchdog(void)
-{
-}
-static inline void touch_softlockup_watchdog_sync(void)
-{
-}
-static inline void touch_all_softlockup_watchdogs(void)
-{
-}
+static inline void touch_softlockup_watchdog_sched(void) { }
+static inline void touch_softlockup_watchdog(void) { }
+static inline void touch_softlockup_watchdog_sync(void) { }
+static inline void touch_all_softlockup_watchdogs(void) { }
 #endif
 
 #ifdef CONFIG_DETECT_HUNG_TASK
 void reset_hung_task_detector(void);
 #else
-static inline void reset_hung_task_detector(void)
-{
-}
+static inline void reset_hung_task_detector(void) { }
 #endif
 
 /*
@@ -54,12 +63,12 @@ static inline void reset_hung_task_detector(void)
  * 'watchdog_enabled' variable. Each lockup detector has its dedicated bit -
  * bit 0 for the hard lockup detector and bit 1 for the soft lockup detector.
  *
- * 'watchdog_user_enabled', 'nmi_watchdog_enabled' and 'soft_watchdog_enabled'
- * are variables that are only used as an 'interface' between the parameters
- * in /proc/sys/kernel and the internal state bits in 'watchdog_enabled'. The
- * 'watchdog_thresh' variable is handled differently because its value is not
- * boolean, and the lockup detectors are 'suspended' while 'watchdog_thresh'
- * is equal zero.
+ * 'watchdog_user_enabled', 'nmi_watchdog_user_enabled' and
+ * 'soft_watchdog_user_enabled' are variables that are only used as an
+ * 'interface' between the parameters in /proc/sys/kernel and the internal
+ * state bits in 'watchdog_enabled'. The 'watchdog_thresh' variable is
+ * handled differently because its value is not boolean, and the lockup
+ * detectors are 'suspended' while 'watchdog_thresh' is equal zero.
  */
 #define NMI_WATCHDOG_ENABLED_BIT   0
 #define SOFT_WATCHDOG_ENABLED_BIT  1
@@ -73,17 +82,41 @@ extern unsigned int hardlockup_panic;
 static inline void hardlockup_detector_disable(void) {}
 #endif
 
+#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
+# define NMI_WATCHDOG_SYSCTL_PERM	0644
+#else
+# define NMI_WATCHDOG_SYSCTL_PERM	0444
+#endif
+
 #if defined(CONFIG_HARDLOCKUP_DETECTOR_PERF)
 extern void arch_touch_nmi_watchdog(void);
+extern void hardlockup_detector_perf_stop(void);
+extern void hardlockup_detector_perf_restart(void);
+extern void hardlockup_detector_perf_disable(void);
+extern void hardlockup_detector_perf_enable(void);
+extern void hardlockup_detector_perf_cleanup(void);
+extern int hardlockup_detector_perf_init(void);
 #else
-#if !defined(CONFIG_HAVE_NMI_WATCHDOG)
+static inline void hardlockup_detector_perf_stop(void) { }
+static inline void hardlockup_detector_perf_restart(void) { }
+static inline void hardlockup_detector_perf_disable(void) { }
+static inline void hardlockup_detector_perf_enable(void) { }
+static inline void hardlockup_detector_perf_cleanup(void) { }
+# if !defined(CONFIG_HAVE_NMI_WATCHDOG)
+static inline int hardlockup_detector_perf_init(void) { return -ENODEV; }
 static inline void arch_touch_nmi_watchdog(void) {}
+# else
+static inline int hardlockup_detector_perf_init(void) { return 0; }
+# endif
 #endif
-#endif
+
+void watchdog_nmi_stop(void);
+void watchdog_nmi_start(void);
+int watchdog_nmi_probe(void);
 
 /**
  * touch_nmi_watchdog - restart NMI watchdog timeout.
- * 
+ *
  * If the architecture supports the NMI watchdog, touch_nmi_watchdog()
  * may be used to reset the timeout - for code which intentionally
  * disables interrupts for a long time. This call is stateless.
@@ -153,22 +186,6 @@ static inline bool trigger_single_cpu_backtrace(int cpu)
 u64 hw_nmi_get_sample_period(int watchdog_thresh);
 #endif
 
-#ifdef CONFIG_LOCKUP_DETECTOR
-extern int nmi_watchdog_enabled;
-extern int watchdog_user_enabled;
-extern int watchdog_thresh;
-extern unsigned long watchdog_enabled;
-extern struct cpumask watchdog_cpumask;
-extern unsigned long *watchdog_cpumask_bits;
-extern int __read_mostly watchdog_suspended;
-#ifdef CONFIG_SMP
-extern int sysctl_softlockup_all_cpu_backtrace;
-extern int sysctl_hardlockup_all_cpu_backtrace;
-#else
-#define sysctl_softlockup_all_cpu_backtrace 0
-#define sysctl_hardlockup_all_cpu_backtrace 0
-#endif
-
 #if defined(CONFIG_HARDLOCKUP_CHECK_TIMESTAMP) && \
     defined(CONFIG_HARDLOCKUP_DETECTOR)
 void watchdog_update_hrtimer_threshold(u64 period);
@@ -176,7 +193,6 @@ void watchdog_update_hrtimer_threshold(u64 period);
 static inline void watchdog_update_hrtimer_threshold(u64 period) { }
 #endif
 
-extern bool is_hardlockup(void);
 struct ctl_table;
 extern int proc_watchdog(struct ctl_table *, int ,
 			 void __user *, size_t *, loff_t *);
@@ -188,18 +204,6 @@ extern int proc_watchdog_thresh(struct ctl_table *, int ,
 				void __user *, size_t *, loff_t *);
 extern int proc_watchdog_cpumask(struct ctl_table *, int,
 				 void __user *, size_t *, loff_t *);
-extern int lockup_detector_suspend(void);
-extern void lockup_detector_resume(void);
-#else
-static inline int lockup_detector_suspend(void)
-{
-	return 0;
-}
-
-static inline void lockup_detector_resume(void)
-{
-}
-#endif
 
 #ifdef CONFIG_HAVE_ACPI_APEI_NMI
 #include <asm/nmi.h>
diff --git a/include/linux/node.h b/include/linux/node.h
index d1751beb462c..4ece0fee0ffc 100644
--- a/include/linux/node.h
+++ b/include/linux/node.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/node.h - generic node definition
  *
diff --git a/include/linux/nodemask.h b/include/linux/nodemask.h
index cf0b91c3ec12..de1c50b93c61 100644
--- a/include/linux/nodemask.h
+++ b/include/linux/nodemask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NODEMASK_H
 #define __LINUX_NODEMASK_H
 
diff --git a/include/linux/notifier.h b/include/linux/notifier.h
index 4149868de4e6..6d731110e0db 100644
--- a/include/linux/notifier.h
+++ b/include/linux/notifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Routines to manage notifier chains for passing status changes to any
  *	interested routines. We need this instead of hard coded call lists so
diff --git a/include/linux/ns_common.h b/include/linux/ns_common.h
index 85a5c8c16be9..5fbc4000358f 100644
--- a/include/linux/ns_common.h
+++ b/include/linux/ns_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NS_COMMON_H
 #define _LINUX_NS_COMMON_H
 
diff --git a/include/linux/nsc_gpio.h b/include/linux/nsc_gpio.h
index 7da0cf3702ee..d7a04a6e3783 100644
--- a/include/linux/nsc_gpio.h
+++ b/include/linux/nsc_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
    nsc_gpio.c
 
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index ac0d65bef5d0..2ae1b1a4d84d 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NSPROXY_H
 #define _LINUX_NSPROXY_H
 
diff --git a/include/linux/nubus.h b/include/linux/nubus.h
index 6165b2c62040..11ce6b1117a8 100644
--- a/include/linux/nubus.h
+++ b/include/linux/nubus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   nubus.h: various definitions and prototypes for NuBus drivers to use.
 
diff --git a/include/linux/numa.h b/include/linux/numa.h
index 3aaa31603a86..110b0e5d0fb0 100644
--- a/include/linux/numa.h
+++ b/include/linux/numa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NUMA_H
 #define _LINUX_NUMA_H
 
diff --git a/include/linux/nvme-fc-driver.h b/include/linux/nvme-fc-driver.h
index 9c5cb4480806..496ff759f84c 100644
--- a/include/linux/nvme-fc-driver.h
+++ b/include/linux/nvme-fc-driver.h
@@ -40,6 +40,8 @@
  * @node_name: FC WWNN for the port
  * @port_name: FC WWPN for the port
  * @port_role: What NVME roles are supported (see FC_PORT_ROLE_xxx)
+ * @dev_loss_tmo: maximum delay for reconnects to an association on
+ *             this device. Used only on a remoteport.
  *
  * Initialization values for dynamic port fields:
  * @port_id:      FC N_Port_ID currently assigned the port. Upper 8 bits must
@@ -50,6 +52,7 @@ struct nvme_fc_port_info {
 	u64			port_name;
 	u32			port_role;
 	u32			port_id;
+	u32			dev_loss_tmo;
 };
 
 
@@ -102,8 +105,6 @@ enum nvmefc_fcp_datadir {
 };
 
 
-#define NVME_FC_MAX_SEGMENTS		256
-
 /**
  * struct nvmefc_fcp_req - Request structure passed from NVME-FC transport
  *                         to LLDD in order to perform a NVME FCP IO operation.
@@ -202,6 +203,9 @@ enum nvme_fc_obj_state {
  *             The length of the buffer corresponds to the local_priv_sz
  *             value specified in the nvme_fc_port_template supplied by
  *             the LLDD.
+ * @dev_loss_tmo: maximum delay for reconnects to an association on
+ *             this device. To modify, lldd must call
+ *             nvme_fc_set_remoteport_devloss().
  *
  * Fields with dynamic values. Values may change base on link state. LLDD
  * may reference fields directly to change them. Initialized by the
@@ -259,10 +263,9 @@ struct nvme_fc_remote_port {
 	u32 port_role;
 	u64 node_name;
 	u64 port_name;
-
 	struct nvme_fc_local_port *localport;
-
 	void *private;
+	u32 dev_loss_tmo;
 
 	/* dynamic fields */
 	u32 port_id;
@@ -346,11 +349,6 @@ struct nvme_fc_remote_port {
  *       indicating an FC transport Aborted status.
  *       Entrypoint is Mandatory.
  *
- * @defer_rcv:  Called by the transport to signal the LLLD that it has
- *       begun processing of a previously received NVME CMD IU. The LLDD
- *       is now free to re-use the rcv buffer associated with the
- *       nvmefc_tgt_fcp_req.
- *
  * @max_hw_queues:  indicates the maximum number of hw queues the LLDD
  *       supports for cpu affinitization.
  *       Value is Mandatory. Must be at least 1.
@@ -451,6 +449,10 @@ int nvme_fc_register_remoteport(struct nvme_fc_local_port *localport,
 
 int nvme_fc_unregister_remoteport(struct nvme_fc_remote_port *remoteport);
 
+void nvme_fc_rescan_remoteport(struct nvme_fc_remote_port *remoteport);
+
+int nvme_fc_set_remoteport_devloss(struct nvme_fc_remote_port *remoteport,
+			u32 dev_loss_tmo);
 
 
 /*
@@ -806,11 +808,19 @@ struct nvmet_fc_target_port {
  *       outstanding operation (if there was one) to complete, then will
  *       call the fcp_req_release() callback to return the command's
  *       exchange context back to the LLDD.
+ *       Entrypoint is Mandatory.
  *
  * @fcp_req_release:  Called by the transport to return a nvmefc_tgt_fcp_req
  *       to the LLDD after all operations on the fcp operation are complete.
  *       This may be due to the command completing or upon completion of
  *       abort cleanup.
+ *       Entrypoint is Mandatory.
+ *
+ * @defer_rcv:  Called by the transport to signal the LLLD that it has
+ *       begun processing of a previously received NVME CMD IU. The LLDD
+ *       is now free to re-use the rcv buffer associated with the
+ *       nvmefc_tgt_fcp_req.
+ *       Entrypoint is Optional.
  *
  * @max_hw_queues:  indicates the maximum number of hw queues the LLDD
  *       supports for cpu affinitization.
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 87723c86f136..aea87f0d917b 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -90,6 +90,14 @@ enum {
 };
 
 #define NVME_AQ_DEPTH		32
+#define NVME_NR_AEN_COMMANDS	1
+#define NVME_AQ_BLK_MQ_DEPTH	(NVME_AQ_DEPTH - NVME_NR_AEN_COMMANDS)
+
+/*
+ * Subtract one to leave an empty queue entry for 'Full Queue' condition. See
+ * NVM-Express 1.2 specification, section 4.1.2.
+ */
+#define NVME_AQ_MQ_TAG_DEPTH	(NVME_AQ_BLK_MQ_DEPTH - 1)
 
 enum {
 	NVME_REG_CAP	= 0x0000,	/* Controller Capabilities */
@@ -267,6 +275,7 @@ enum {
 	NVME_CTRL_OACS_SEC_SUPP                 = 1 << 0,
 	NVME_CTRL_OACS_DIRECTIVES		= 1 << 5,
 	NVME_CTRL_OACS_DBBUF_SUPP		= 1 << 8,
+	NVME_CTRL_LPA_CMD_EFFECTS_LOG		= 1 << 1,
 };
 
 struct nvme_lbaf {
@@ -396,6 +405,21 @@ struct nvme_fw_slot_info_log {
 };
 
 enum {
+	NVME_CMD_EFFECTS_CSUPP		= 1 << 0,
+	NVME_CMD_EFFECTS_LBCC		= 1 << 1,
+	NVME_CMD_EFFECTS_NCC		= 1 << 2,
+	NVME_CMD_EFFECTS_NIC		= 1 << 3,
+	NVME_CMD_EFFECTS_CCC		= 1 << 4,
+	NVME_CMD_EFFECTS_CSE_MASK	= 3 << 16,
+};
+
+struct nvme_effects_log {
+	__le32 acs[256];
+	__le32 iocs[256];
+	__u8   resv[2048];
+};
+
+enum {
 	NVME_SMART_CRIT_SPARE		= 1 << 0,
 	NVME_SMART_CRIT_TEMPERATURE	= 1 << 1,
 	NVME_SMART_CRIT_RELIABILITY	= 1 << 2,
@@ -404,6 +428,10 @@ enum {
 };
 
 enum {
+	NVME_AER_ERROR			= 0,
+	NVME_AER_SMART			= 1,
+	NVME_AER_CSS			= 6,
+	NVME_AER_VS			= 7,
 	NVME_AER_NOTICE_NS_CHANGED	= 0x0002,
 	NVME_AER_NOTICE_FW_ACT_STARTING = 0x0102,
 };
@@ -471,12 +499,14 @@ enum nvme_opcode {
  *
  * @NVME_SGL_FMT_ADDRESS:     absolute address of the data block
  * @NVME_SGL_FMT_OFFSET:      relative offset of the in-capsule data block
+ * @NVME_SGL_FMT_TRANSPORT_A: transport defined format, value 0xA
  * @NVME_SGL_FMT_INVALIDATE:  RDMA transport specific remote invalidation
  *                            request subtype
  */
 enum {
 	NVME_SGL_FMT_ADDRESS		= 0x00,
 	NVME_SGL_FMT_OFFSET		= 0x01,
+	NVME_SGL_FMT_TRANSPORT_A	= 0x0A,
 	NVME_SGL_FMT_INVALIDATE		= 0x0f,
 };
 
@@ -490,12 +520,16 @@ enum {
  *
  * For struct nvme_keyed_sgl_desc:
  *   @NVME_KEY_SGL_FMT_DATA_DESC:	keyed data block descriptor
+ *
+ * Transport-specific SGL types:
+ *   @NVME_TRANSPORT_SGL_DATA_DESC:	Transport SGL data dlock descriptor
  */
 enum {
 	NVME_SGL_FMT_DATA_DESC		= 0x00,
 	NVME_SGL_FMT_SEG_DESC		= 0x02,
 	NVME_SGL_FMT_LAST_SEG_DESC	= 0x03,
 	NVME_KEY_SGL_FMT_DATA_DESC	= 0x04,
+	NVME_TRANSPORT_SGL_DATA_DESC	= 0x05,
 };
 
 struct nvme_sgl_desc {
@@ -675,6 +709,7 @@ enum nvme_admin_opcode {
 	nvme_admin_format_nvm		= 0x80,
 	nvme_admin_security_send	= 0x81,
 	nvme_admin_security_recv	= 0x82,
+	nvme_admin_sanitize_nvm		= 0x84,
 };
 
 enum {
@@ -706,6 +741,7 @@ enum {
 	NVME_LOG_ERROR		= 0x01,
 	NVME_LOG_SMART		= 0x02,
 	NVME_LOG_FW_SLOT	= 0x03,
+	NVME_LOG_CMD_EFFECTS	= 0x05,
 	NVME_LOG_DISC		= 0x70,
 	NVME_LOG_RESERVATION	= 0x80,
 	NVME_FWACT_REPL		= (0 << 3),
@@ -1127,19 +1163,6 @@ enum {
 	NVME_SC_UNWRITTEN_BLOCK		= 0x287,
 
 	NVME_SC_DNR			= 0x4000,
-
-
-	/*
-	 * FC Transport-specific error status values for NVME commands
-	 *
-	 * Transport-specific status code values must be in the range 0xB0..0xBF
-	 */
-
-	/* Generic FC failure - catchall */
-	NVME_SC_FC_TRANSPORT_ERROR	= 0x00B0,
-
-	/* I/O failure due to FC ABTS'd */
-	NVME_SC_FC_TRANSPORT_ABORTED	= 0x00B1,
 };
 
 struct nvme_completion {
diff --git a/include/linux/nvram.h b/include/linux/nvram.h
index cf0ff555a6ac..28bfb9ab94ca 100644
--- a/include/linux/nvram.h
+++ b/include/linux/nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NVRAM_H
 #define _LINUX_NVRAM_H
 
diff --git a/include/linux/of.h b/include/linux/of.h
index cfc34117fc92..b240ed69dc96 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -734,6 +734,16 @@ static inline struct device_node *of_get_cpu_node(int cpu,
 	return NULL;
 }
 
+static inline int of_n_addr_cells(struct device_node *np)
+{
+	return 0;
+
+}
+static inline int of_n_size_cells(struct device_node *np)
+{
+	return 0;
+}
+
 static inline int of_property_read_u64(const struct device_node *np,
 				       const char *propname, u64 *out_value)
 {
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 37864734ca50..b8ac44c9748e 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_ADDRESS_H
 #define __OF_ADDRESS_H
 #include <linux/ioport.h>
diff --git a/include/linux/of_device.h b/include/linux/of_device.h
index 611502524425..8da5a1b31ece 100644
--- a/include/linux/of_device.h
+++ b/include/linux/of_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_OF_DEVICE_H
 #define _LINUX_OF_DEVICE_H
 
diff --git a/include/linux/of_iommu.h b/include/linux/of_iommu.h
index 13394ac83c66..cddfaff4d0b7 100644
--- a/include/linux/of_iommu.h
+++ b/include/linux/of_iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_IOMMU_H
 #define __OF_IOMMU_H
 
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 1e0deb8e8494..1214cabb2247 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_IRQ_H
 #define __OF_IRQ_H
 
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 518c8d20647a..bf588a05d0d0 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_PCI_H
 #define __OF_PCI_H
 
diff --git a/include/linux/of_platform.h b/include/linux/of_platform.h
index e0d1946270f3..fb908e598348 100644
--- a/include/linux/of_platform.h
+++ b/include/linux/of_platform.h
@@ -57,7 +57,14 @@ extern const struct of_device_id of_default_bus_match_table[];
 extern struct platform_device *of_device_alloc(struct device_node *np,
 					 const char *bus_id,
 					 struct device *parent);
+#ifdef CONFIG_OF
 extern struct platform_device *of_find_device_by_node(struct device_node *np);
+#else
+static inline struct platform_device *of_find_device_by_node(struct device_node *np)
+{
+	return NULL;
+}
+#endif
 
 /* Platform devices and busses creation */
 extern struct platform_device *of_platform_device_create(struct device_node *np,
diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h
index f8e1992d6423..bb4fda7317be 100644
--- a/include/linux/of_reserved_mem.h
+++ b/include/linux/of_reserved_mem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OF_RESERVED_MEM_H
 #define __OF_RESERVED_MEM_H
 
diff --git a/include/linux/olpc-ec.h b/include/linux/olpc-ec.h
index 2925df3ce78a..79bdc6328c52 100644
--- a/include/linux/olpc-ec.h
+++ b/include/linux/olpc-ec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_OLPC_EC_H
 #define _LINUX_OLPC_EC_H
 
diff --git a/include/linux/omap-dma.h b/include/linux/omap-dma.h
index 290081620b3e..840ce551e773 100644
--- a/include/linux/omap-dma.h
+++ b/include/linux/omap-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_OMAP_DMA_H
 #define __LINUX_OMAP_DMA_H
 #include <linux/omap-dmaengine.h>
diff --git a/include/linux/once.h b/include/linux/once.h
index 9c98aaa87cbc..6790884d3c57 100644
--- a/include/linux/once.h
+++ b/include/linux/once.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ONCE_H
 #define _LINUX_ONCE_H
 
diff --git a/include/linux/oom.h b/include/linux/oom.h
index 76aac4ce39bc..01c91d874a57 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDE_LINUX_OOM_H
 #define __INCLUDE_LINUX_OOM_H
 
diff --git a/include/linux/osq_lock.h b/include/linux/osq_lock.h
index 703ea5c30a33..5581dbd3bd34 100644
--- a/include/linux/osq_lock.h
+++ b/include/linux/osq_lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_OSQ_LOCK_H
 #define __LINUX_OSQ_LOCK_H
 
diff --git a/include/linux/oxu210hp.h b/include/linux/oxu210hp.h
index 0bf96eae5389..94cd25165c08 100644
--- a/include/linux/oxu210hp.h
+++ b/include/linux/oxu210hp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* platform data for the OXU210HP HCD */
 
 struct oxu210hp_platform_data {
diff --git a/include/linux/padata.h b/include/linux/padata.h
index 2f9c1f93b1ce..5d13d25da2c8 100644
--- a/include/linux/padata.h
+++ b/include/linux/padata.h
@@ -37,6 +37,7 @@
  * @list: List entry, to attach to the padata lists.
  * @pd: Pointer to the internal control structure.
  * @cb_cpu: Callback cpu for serializatioon.
+ * @cpu: Cpu for parallelization.
  * @seq_nr: Sequence number of the parallelized data object.
  * @info: Used to pass information from the parallel to the serial function.
  * @parallel: Parallel execution function.
@@ -46,6 +47,7 @@ struct padata_priv {
 	struct list_head	list;
 	struct parallel_data	*pd;
 	int			cb_cpu;
+	int			cpu;
 	int			info;
 	void                    (*parallel)(struct padata_priv *padata);
 	void                    (*serial)(struct padata_priv *padata);
@@ -85,6 +87,7 @@ struct padata_serial_queue {
  * @swork: work struct for serialization.
  * @pd: Backpointer to the internal control structure.
  * @work: work struct for parallelization.
+ * @reorder_work: work struct for reordering.
  * @num_obj: Number of objects that are processed by this cpu.
  * @cpu_index: Index of the cpu.
  */
@@ -93,6 +96,7 @@ struct padata_parallel_queue {
        struct padata_list    reorder;
        struct parallel_data *pd;
        struct work_struct    work;
+       struct work_struct    reorder_work;
        atomic_t              num_obj;
        int                   cpu_index;
 };
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 77b078c103b2..7ec86bf31ce4 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PAGE_FLAGS_LAYOUT_H
 #define PAGE_FLAGS_LAYOUT_H
 
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index ba2d470d2d0a..584b14c774c1 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Macros for manipulating and testing page->flags
  */
diff --git a/include/linux/page-isolation.h b/include/linux/page-isolation.h
index d4cd2014fa6f..05a04e603686 100644
--- a/include/linux/page-isolation.h
+++ b/include/linux/page-isolation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PAGEISOLATION_H
 #define __LINUX_PAGEISOLATION_H
 
diff --git a/include/linux/page_counter.h b/include/linux/page_counter.h
index 7e62920a3a94..c15ab80ad32d 100644
--- a/include/linux/page_counter.h
+++ b/include/linux/page_counter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PAGE_COUNTER_H
 #define _LINUX_PAGE_COUNTER_H
 
diff --git a/include/linux/page_ext.h b/include/linux/page_ext.h
index 9298c393ddaa..ca5461efae2f 100644
--- a/include/linux/page_ext.h
+++ b/include/linux/page_ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PAGE_EXT_H
 #define __LINUX_PAGE_EXT_H
 
diff --git a/include/linux/page_idle.h b/include/linux/page_idle.h
index fec40271339f..1e894d34bdce 100644
--- a/include/linux/page_idle.h
+++ b/include/linux/page_idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MM_PAGE_IDLE_H
 #define _LINUX_MM_PAGE_IDLE_H
 
diff --git a/include/linux/page_owner.h b/include/linux/page_owner.h
index 2be728d156b5..8679ccd722e8 100644
--- a/include/linux/page_owner.h
+++ b/include/linux/page_owner.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PAGE_OWNER_H
 #define __LINUX_PAGE_OWNER_H
 
diff --git a/include/linux/page_ref.h b/include/linux/page_ref.h
index 1fd71733aa68..760d74a0e9a9 100644
--- a/include/linux/page_ref.h
+++ b/include/linux/page_ref.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PAGE_REF_H
 #define _LINUX_PAGE_REF_H
 
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 5bbd6780f205..e08b5339023c 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PAGEMAP_H
 #define _LINUX_PAGEMAP_H
 
diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index 4dcd5506f1ed..2636c0c0f279 100644
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/pagevec.h
  *
diff --git a/include/linux/parport.h b/include/linux/parport.h
index 58e3c64c6b49..397607a0c0eb 100644
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -225,6 +225,7 @@ struct parport {
 	struct pardevice *waittail;
 
 	struct list_head list;
+	struct timer_list timer;
 	unsigned int flags;
 
 	void *sysctl_table;
diff --git a/include/linux/parport_pc.h b/include/linux/parport_pc.h
index cc1767f5cca8..3d6fc576d6a1 100644
--- a/include/linux/parport_pc.h
+++ b/include/linux/parport_pc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PARPORT_PC_H
 #define __LINUX_PARPORT_PC_H
 
diff --git a/include/linux/parser.h b/include/linux/parser.h
index 884c1e6eb3fe..12fc3482f5fc 100644
--- a/include/linux/parser.h
+++ b/include/linux/parser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/parser.h
  *
diff --git a/include/linux/patchkey.h b/include/linux/patchkey.h
index 97a919fc9927..f581defb2df0 100644
--- a/include/linux/patchkey.h
+++ b/include/linux/patchkey.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * <linux/patchkey.h> -- definition of _PATCHKEY macro
  *
diff --git a/include/linux/path.h b/include/linux/path.h
index cde895cc4af4..81e65a5be7ce 100644
--- a/include/linux/path.h
+++ b/include/linux/path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PATH_H
 #define _LINUX_PATH_H
 
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index dd86c97f2454..8082b612f561 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File		pci-acpi.h
  *
diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
index 207c561fb40e..3cc06b059017 100644
--- a/include/linux/pci-aspm.h
+++ b/include/linux/pci-aspm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	aspm.h
  *
diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
index 782fb8e0755f..7c4b8e27268c 100644
--- a/include/linux/pci-ats.h
+++ b/include/linux/pci-ats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_PCI_ATS_H
 #define LINUX_PCI_ATS_H
 
diff --git a/include/linux/pci-dma-compat.h b/include/linux/pci-dma-compat.h
index 39726caef5b1..d1f9fdade1e0 100644
--- a/include/linux/pci-dma-compat.h
+++ b/include/linux/pci-dma-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include this file if the platform implements the dma_ DMA Mapping API
  * and wants to provide the pci_ DMA Mapping API in terms of it */
 
diff --git a/include/linux/pci-dma.h b/include/linux/pci-dma.h
index 549a041f9c08..0f7aa7353ca3 100644
--- a/include/linux/pci-dma.h
+++ b/include/linux/pci-dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PCI_DMA_H
 #define _LINUX_PCI_DMA_H
 
diff --git a/include/linux/pci.h b/include/linux/pci.h
index f68c58a93dd0..e920a2527797 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	pci.h
  *
@@ -205,13 +206,8 @@ enum pci_dev_flags {
 	PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT = (__force pci_dev_flags_t) (1 << 9),
 	/* Do not use FLR even if device advertises PCI_AF_CAP */
 	PCI_DEV_FLAGS_NO_FLR_RESET = (__force pci_dev_flags_t) (1 << 10),
-	/*
-	 * Resume before calling the driver's system suspend hooks, disabling
-	 * the direct_complete optimization.
-	 */
-	PCI_DEV_FLAGS_NEEDS_RESUME = (__force pci_dev_flags_t) (1 << 11),
 	/* Don't use Relaxed Ordering for TLPs directed at this device */
-	PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 12),
+	PCI_DEV_FLAGS_NO_RELAXED_ORDERING = (__force pci_dev_flags_t) (1 << 11),
 };
 
 enum pci_irq_reroute_variant {
@@ -1685,6 +1681,8 @@ static inline int pci_get_new_domain_nr(void) { return -ENOSYS; }
 
 #define dev_is_pci(d) (false)
 #define dev_is_pf(d) (false)
+static inline bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
+{ return false; }
 #endif /* CONFIG_PCI */
 
 /* Include architecture-dependent settings and functions */
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 4adf6161ec77..ab20dc5db423 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	PCI Class, Vendor and Device IDs
  *
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index e8f3f7479224..b69769dbf659 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * File:	pcieport_if.h
  * Purpose:	PCI Express Port Bus Driver's IF Data Structure
diff --git a/include/linux/percpu-defs.h b/include/linux/percpu-defs.h
index 8f16299ca068..2d2096ba1cfe 100644
--- a/include/linux/percpu-defs.h
+++ b/include/linux/percpu-defs.h
@@ -173,6 +173,21 @@
 	DEFINE_PER_CPU_SECTION(type, name, "..read_mostly")
 
 /*
+ * Declaration/definition used for per-CPU variables that should be accessed
+ * as decrypted when memory encryption is enabled in the guest.
+ */
+#if defined(CONFIG_VIRTUALIZATION) && defined(CONFIG_AMD_MEM_ENCRYPT)
+
+#define DECLARE_PER_CPU_DECRYPTED(type, name)				\
+	DECLARE_PER_CPU_SECTION(type, name, "..decrypted")
+
+#define DEFINE_PER_CPU_DECRYPTED(type, name)				\
+	DEFINE_PER_CPU_SECTION(type, name, "..decrypted")
+#else
+#define DEFINE_PER_CPU_DECRYPTED(type, name)	DEFINE_PER_CPU(type, name)
+#endif
+
+/*
  * Intermodule exports for per-CPU variables.  sparse forgets about
  * address space across EXPORT_SYMBOL(), change EXPORT_SYMBOL() to
  * noop if __CHECKER__.
diff --git a/include/linux/percpu-refcount.h b/include/linux/percpu-refcount.h
index c13dceb87b60..6658d9ee5257 100644
--- a/include/linux/percpu-refcount.h
+++ b/include/linux/percpu-refcount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Percpu refcounts:
  * (C) 2012 Google, Inc.
diff --git a/include/linux/percpu-rwsem.h b/include/linux/percpu-rwsem.h
index 93664f022ecf..b1f37a89e368 100644
--- a/include/linux/percpu-rwsem.h
+++ b/include/linux/percpu-rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERCPU_RWSEM_H
 #define _LINUX_PERCPU_RWSEM_H
 
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 6a5fb939d3e5..296bbe49d5d1 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PERCPU_H
 #define __LINUX_PERCPU_H
 
diff --git a/include/linux/percpu_counter.h b/include/linux/percpu_counter.h
index ec065387f443..73a7bf30fe9a 100644
--- a/include/linux/percpu_counter.h
+++ b/include/linux/percpu_counter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERCPU_COUNTER_H
 #define _LINUX_PERCPU_COUNTER_H
 /*
diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h
index f5cfdd6a5539..07d78e4653bc 100644
--- a/include/linux/percpu_ida.h
+++ b/include/linux/percpu_ida.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERCPU_IDA_H__
 #define __PERCPU_IDA_H__
 
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 8e22f24ded6a..874b71a70058 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -485,9 +485,9 @@ struct perf_addr_filters_head {
 };
 
 /**
- * enum perf_event_active_state - the states of a event
+ * enum perf_event_state - the states of a event
  */
-enum perf_event_active_state {
+enum perf_event_state {
 	PERF_EVENT_STATE_DEAD		= -4,
 	PERF_EVENT_STATE_EXIT		= -3,
 	PERF_EVENT_STATE_ERROR		= -2,
@@ -578,7 +578,7 @@ struct perf_event {
 	struct pmu			*pmu;
 	void				*pmu_private;
 
-	enum perf_event_active_state	state;
+	enum perf_event_state		state;
 	unsigned int			attach_state;
 	local64_t			count;
 	atomic64_t			child_count;
@@ -588,26 +588,10 @@ struct perf_event {
 	 * has been enabled (i.e. eligible to run, and the task has
 	 * been scheduled in, if this is a per-task event)
 	 * and running (scheduled onto the CPU), respectively.
-	 *
-	 * They are computed from tstamp_enabled, tstamp_running and
-	 * tstamp_stopped when the event is in INACTIVE or ACTIVE state.
 	 */
 	u64				total_time_enabled;
 	u64				total_time_running;
-
-	/*
-	 * These are timestamps used for computing total_time_enabled
-	 * and total_time_running when the event is in INACTIVE or
-	 * ACTIVE state, measured in nanoseconds from an arbitrary point
-	 * in time.
-	 * tstamp_enabled: the notional time when the event was enabled
-	 * tstamp_running: the notional time when the event was scheduled on
-	 * tstamp_stopped: in INACTIVE state, the notional time when the
-	 *	event was scheduled off.
-	 */
-	u64				tstamp_enabled;
-	u64				tstamp_running;
-	u64				tstamp_stopped;
+	u64				tstamp;
 
 	/*
 	 * timestamp shadows the actual context timing but it can
@@ -699,7 +683,6 @@ struct perf_event {
 
 #ifdef CONFIG_CGROUP_PERF
 	struct perf_cgroup		*cgrp; /* cgroup event is attach to */
-	int				cgrp_defer_enabled;
 #endif
 
 	struct list_head		sb_list;
@@ -806,6 +789,7 @@ struct perf_output_handle {
 struct bpf_perf_event_data_kern {
 	struct pt_regs *regs;
 	struct perf_sample_data *data;
+	struct perf_event *event;
 };
 
 #ifdef CONFIG_CGROUP_PERF
@@ -884,7 +868,8 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr,
 				void *context);
 extern void perf_pmu_migrate_context(struct pmu *pmu,
 				int src_cpu, int dst_cpu);
-int perf_event_read_local(struct perf_event *event, u64 *value);
+int perf_event_read_local(struct perf_event *event, u64 *value,
+			  u64 *enabled, u64 *running);
 extern u64 perf_event_read_value(struct perf_event *event,
 				 u64 *enabled, u64 *running);
 
@@ -1286,7 +1271,8 @@ static inline const struct perf_event_attr *perf_event_attrs(struct perf_event *
 {
 	return ERR_PTR(-EINVAL);
 }
-static inline int perf_event_read_local(struct perf_event *event, u64 *value)
+static inline int perf_event_read_local(struct perf_event *event, u64 *value,
+					u64 *enabled, u64 *running)
 {
 	return -EINVAL;
 }
diff --git a/include/linux/perf_regs.h b/include/linux/perf_regs.h
index 9b7dd59fe28d..476747456bca 100644
--- a/include/linux/perf_regs.h
+++ b/include/linux/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERF_REGS_H
 #define _LINUX_PERF_REGS_H
 
diff --git a/include/linux/personality.h b/include/linux/personality.h
index aeb7892b2468..fc16fbc659c7 100644
--- a/include/linux/personality.h
+++ b/include/linux/personality.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PERSONALITY_H
 #define _LINUX_PERSONALITY_H
 
diff --git a/include/linux/pfn.h b/include/linux/pfn.h
index 1132953235c0..14bc053c53d8 100644
--- a/include/linux/pfn.h
+++ b/include/linux/pfn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PFN_H_
 #define _LINUX_PFN_H_
 
diff --git a/include/linux/pfn_t.h b/include/linux/pfn_t.h
index a49b3259cad7..43b1d7648e82 100644
--- a/include/linux/pfn_t.h
+++ b/include/linux/pfn_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PFN_T_H_
 #define _LINUX_PFN_T_H_
 #include <linux/mm.h>
diff --git a/include/linux/phy/phy-qcom-ufs.h b/include/linux/phy/phy-qcom-ufs.h
index 35c070ea6ea3..0a2c18a9771d 100644
--- a/include/linux/phy/phy-qcom-ufs.h
+++ b/include/linux/phy/phy-qcom-ufs.h
@@ -31,10 +31,7 @@ void ufs_qcom_phy_enable_dev_ref_clk(struct phy *phy);
  */
 void ufs_qcom_phy_disable_dev_ref_clk(struct phy *phy);
 
-int ufs_qcom_phy_start_serdes(struct phy *phy);
 int ufs_qcom_phy_set_tx_lane_enable(struct phy *phy, u32 tx_lanes);
-int ufs_qcom_phy_calibrate_phy(struct phy *phy, bool is_rate_B);
-int ufs_qcom_phy_is_pcs_ready(struct phy *phy);
 void ufs_qcom_phy_save_controller_version(struct phy *phy,
 			u8 major, u16 minor, u16 step);
 
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index e694d4008c4a..4f8423a948d5 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -29,6 +29,8 @@ enum phy_mode {
 	PHY_MODE_USB_OTG,
 	PHY_MODE_SGMII,
 	PHY_MODE_10GKR,
+	PHY_MODE_UFS_HS_A,
+	PHY_MODE_UFS_HS_B,
 };
 
 /**
@@ -39,6 +41,7 @@ enum phy_mode {
  * @power_off: powering off the phy
  * @set_mode: set the mode of the phy
  * @reset: resetting the phy
+ * @calibrate: calibrate the phy
  * @owner: the module owner containing the ops
  */
 struct phy_ops {
@@ -48,6 +51,7 @@ struct phy_ops {
 	int	(*power_off)(struct phy *phy);
 	int	(*set_mode)(struct phy *phy, enum phy_mode mode);
 	int	(*reset)(struct phy *phy);
+	int	(*calibrate)(struct phy *phy);
 	struct module *owner;
 };
 
@@ -141,6 +145,7 @@ int phy_power_on(struct phy *phy);
 int phy_power_off(struct phy *phy);
 int phy_set_mode(struct phy *phy, enum phy_mode mode);
 int phy_reset(struct phy *phy);
+int phy_calibrate(struct phy *phy);
 static inline int phy_get_bus_width(struct phy *phy)
 {
 	return phy->attrs.bus_width;
@@ -262,6 +267,13 @@ static inline int phy_reset(struct phy *phy)
 	return -ENOSYS;
 }
 
+static inline int phy_calibrate(struct phy *phy)
+{
+	if (!phy)
+		return 0;
+	return -ENOSYS;
+}
+
 static inline int phy_get_bus_width(struct phy *phy)
 {
 	return -ENOSYS;
@@ -291,7 +303,7 @@ static inline struct phy *devm_phy_get(struct device *dev, const char *string)
 static inline struct phy *devm_phy_optional_get(struct device *dev,
 						const char *string)
 {
-	return ERR_PTR(-ENOSYS);
+	return NULL;
 }
 
 static inline struct phy *devm_of_phy_get(struct device *dev,
diff --git a/include/linux/phy/ulpi_phy.h b/include/linux/phy/ulpi_phy.h
index f2ebe490a4bc..7054b440347c 100644
--- a/include/linux/phy/ulpi_phy.h
+++ b/include/linux/phy/ulpi_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/phy/phy.h>
 
 /**
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index 1d41ec44e39d..cf6392de6eb0 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PHY_FIXED_H
 #define __PHY_FIXED_H
 
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 719582744a2e..dfd684ce0787 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PID_H
 #define _LINUX_PID_H
 
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index b09136f88cf4..c78af6061644 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PID_NS_H
 #define _LINUX_PID_NS_H
 
diff --git a/include/linux/pim.h b/include/linux/pim.h
index 0e81b2778ae0..290d4d2ed9b9 100644
--- a/include/linux/pim.h
+++ b/include/linux/pim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PIM_H
 #define __LINUX_PIM_H
 
diff --git a/include/linux/pinctrl/pinctrl-state.h b/include/linux/pinctrl/pinctrl-state.h
index 23073519339f..a0e785815a64 100644
--- a/include/linux/pinctrl/pinctrl-state.h
+++ b/include/linux/pinctrl/pinctrl-state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Standard pin control state definitions
  */
diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h
index e7497c9dde7f..6a80cfc63e0c 100644
--- a/include/linux/pipe_fs_i.h
+++ b/include/linux/pipe_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PIPE_FS_I_H
 #define _LINUX_PIPE_FS_I_H
 
diff --git a/include/linux/pkeys.h b/include/linux/pkeys.h
index a1bacf1150b2..0794ca78c379 100644
--- a/include/linux/pkeys.h
+++ b/include/linux/pkeys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PKEYS_H
 #define _LINUX_PKEYS_H
 
diff --git a/include/linux/platform_data/ad7291.h b/include/linux/platform_data/ad7291.h
index bbd89fa51188..b1fd1530c9a5 100644
--- a/include/linux/platform_data/ad7291.h
+++ b/include/linux/platform_data/ad7291.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IIO_AD7291_H__
 #define __IIO_AD7291_H__
 
diff --git a/include/linux/platform_data/ad7791.h b/include/linux/platform_data/ad7791.h
index f9e4db1b82ae..cc7533049b5b 100644
--- a/include/linux/platform_data/ad7791.h
+++ b/include/linux/platform_data/ad7791.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PLATFORM_DATA_AD7791__
 #define __LINUX_PLATFORM_DATA_AD7791__
 
diff --git a/include/linux/platform_data/ad7879.h b/include/linux/platform_data/ad7879.h
index 69e2e1fd2bc8..6655cc8453ac 100644
--- a/include/linux/platform_data/ad7879.h
+++ b/include/linux/platform_data/ad7879.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/platform_data/ad7879.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
diff --git a/include/linux/platform_data/asoc-imx-ssi.h b/include/linux/platform_data/asoc-imx-ssi.h
index 92c7fd72f636..902851aeb0b4 100644
--- a/include/linux/platform_data/asoc-imx-ssi.h
+++ b/include/linux/platform_data/asoc-imx-ssi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_SSI_H
 #define __MACH_SSI_H
 
diff --git a/include/linux/platform_data/asoc-kirkwood.h b/include/linux/platform_data/asoc-kirkwood.h
index d6a55bd2e578..d442cefa3928 100644
--- a/include/linux/platform_data/asoc-kirkwood.h
+++ b/include/linux/platform_data/asoc-kirkwood.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLAT_AUDIO_H
 #define __PLAT_AUDIO_H
 
diff --git a/include/linux/platform_data/asoc-mx27vis.h b/include/linux/platform_data/asoc-mx27vis.h
index 409adcd04d04..2107d0d992dd 100644
--- a/include/linux/platform_data/asoc-mx27vis.h
+++ b/include/linux/platform_data/asoc-mx27vis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLATFORM_DATA_ASOC_MX27VIS_H
 #define __PLATFORM_DATA_ASOC_MX27VIS_H
 
diff --git a/include/linux/platform_data/asoc-palm27x.h b/include/linux/platform_data/asoc-palm27x.h
index 58afb30d5298..22b69a393a57 100644
--- a/include/linux/platform_data/asoc-palm27x.h
+++ b/include/linux/platform_data/asoc-palm27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_PALMASOC_H_
 #define _INCLUDE_PALMASOC_H_
 
diff --git a/include/linux/platform_data/bcmgenet.h b/include/linux/platform_data/bcmgenet.h
index 26af54321958..d8f8738629d2 100644
--- a/include/linux/platform_data/bcmgenet.h
+++ b/include/linux/platform_data/bcmgenet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PLATFORM_DATA_BCMGENET_H__
 #define __LINUX_PLATFORM_DATA_BCMGENET_H__
 
diff --git a/include/linux/platform_data/crypto-atmel.h b/include/linux/platform_data/crypto-atmel.h
index b46e0d9062a0..0471aaf6999b 100644
--- a/include/linux/platform_data/crypto-atmel.h
+++ b/include/linux/platform_data/crypto-atmel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_CRYPTO_ATMEL_H
 #define __LINUX_CRYPTO_ATMEL_H
 
diff --git a/include/linux/platform_data/dma-ep93xx.h b/include/linux/platform_data/dma-ep93xx.h
index e82c642fa53c..f8f1f6b952a6 100644
--- a/include/linux/platform_data/dma-ep93xx.h
+++ b/include/linux/platform_data/dma-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_DMA_H
 #define __ASM_ARCH_DMA_H
 
diff --git a/include/linux/platform_data/dma-imx-sdma.h b/include/linux/platform_data/dma-imx-sdma.h
index 2d08816720f6..6eaa53cef0bd 100644
--- a/include/linux/platform_data/dma-imx-sdma.h
+++ b/include/linux/platform_data/dma-imx-sdma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MACH_MXC_SDMA_H__
 #define __MACH_MXC_SDMA_H__
 
diff --git a/include/linux/platform_data/dma-mv_xor.h b/include/linux/platform_data/dma-mv_xor.h
index 92ffd3245f76..6867a7ea329b 100644
--- a/include/linux/platform_data/dma-mv_xor.h
+++ b/include/linux/platform_data/dma-mv_xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Marvell XOR platform device data definition file.
  */
diff --git a/include/linux/platform_data/ds620.h b/include/linux/platform_data/ds620.h
index 736bb87ac0fc..6ef58bb77e46 100644
--- a/include/linux/platform_data/ds620.h
+++ b/include/linux/platform_data/ds620.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DS620_H
 #define _LINUX_DS620_H
 
diff --git a/include/linux/platform_data/efm32-spi.h b/include/linux/platform_data/efm32-spi.h
index 31b19ca1d73a..a2c56fcd0534 100644
--- a/include/linux/platform_data/efm32-spi.h
+++ b/include/linux/platform_data/efm32-spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PLATFORM_DATA_EFM32_SPI_H__
 #define __LINUX_PLATFORM_DATA_EFM32_SPI_H__
 
diff --git a/include/linux/platform_data/efm32-uart.h b/include/linux/platform_data/efm32-uart.h
index ed0e975b3c54..ccbb8f11db75 100644
--- a/include/linux/platform_data/efm32-uart.h
+++ b/include/linux/platform_data/efm32-uart.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *
diff --git a/include/linux/platform_data/gpio-htc-egpio.h b/include/linux/platform_data/gpio-htc-egpio.h
index b4201c971367..b7baf1e42c55 100644
--- a/include/linux/platform_data/gpio-htc-egpio.h
+++ b/include/linux/platform_data/gpio-htc-egpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HTC simple EGPIO irq and gpio extender
  */
diff --git a/include/linux/platform_data/i2c-nuc900.h b/include/linux/platform_data/i2c-nuc900.h
index 9ffb12d06e91..23036273a97e 100644
--- a/include/linux/platform_data/i2c-nuc900.h
+++ b/include/linux/platform_data/i2c-nuc900.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_NUC900_I2C_H
 #define __ASM_ARCH_NUC900_I2C_H
 
diff --git a/include/linux/platform_data/irda-pxaficp.h b/include/linux/platform_data/irda-pxaficp.h
index 3cd41f77dda4..bd35ddcf3068 100644
--- a/include/linux/platform_data/irda-pxaficp.h
+++ b/include/linux/platform_data/irda-pxaficp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_IRDA_H
 #define ASMARM_ARCH_IRDA_H
 
diff --git a/include/linux/platform_data/itco_wdt.h b/include/linux/platform_data/itco_wdt.h
index 0e95527edf25..2ccdce6a4e27 100644
--- a/include/linux/platform_data/itco_wdt.h
+++ b/include/linux/platform_data/itco_wdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform data for the Intel TCO Watchdog
  */
diff --git a/include/linux/platform_data/keyboard-pxa930_rotary.h b/include/linux/platform_data/keyboard-pxa930_rotary.h
index 053587caffdd..3271aa01cbe8 100644
--- a/include/linux/platform_data/keyboard-pxa930_rotary.h
+++ b/include/linux/platform_data/keyboard-pxa930_rotary.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA930_ROTARY_H
 #define __ASM_ARCH_PXA930_ROTARY_H
 
diff --git a/include/linux/platform_data/keypad-ep93xx.h b/include/linux/platform_data/keypad-ep93xx.h
index adccee25b162..0e36818e3680 100644
--- a/include/linux/platform_data/keypad-ep93xx.h
+++ b/include/linux/platform_data/keypad-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KEYPAD_EP93XX_H
 #define __KEYPAD_EP93XX_H
 
diff --git a/include/linux/platform_data/keypad-pxa27x.h b/include/linux/platform_data/keypad-pxa27x.h
index 24625569d16d..a376442b9935 100644
--- a/include/linux/platform_data/keypad-pxa27x.h
+++ b/include/linux/platform_data/keypad-pxa27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA27x_KEYPAD_H
 #define __ASM_ARCH_PXA27x_KEYPAD_H
 
diff --git a/include/linux/platform_data/keypad-w90p910.h b/include/linux/platform_data/keypad-w90p910.h
index 556778e8ddaa..206ca4ecd93f 100644
--- a/include/linux/platform_data/keypad-w90p910.h
+++ b/include/linux/platform_data/keypad-w90p910.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_W90P910_KEYPAD_H
 #define __ASM_ARCH_W90P910_KEYPAD_H
 
diff --git a/include/linux/platform_data/lcd-mipid.h b/include/linux/platform_data/lcd-mipid.h
index 8e52c6572281..63f05eb23827 100644
--- a/include/linux/platform_data/lcd-mipid.h
+++ b/include/linux/platform_data/lcd-mipid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LCD_MIPID_H
 #define __LCD_MIPID_H
 
diff --git a/include/linux/platform_data/max3421-hcd.h b/include/linux/platform_data/max3421-hcd.h
index 0303d1970084..5947a6f43d60 100644
--- a/include/linux/platform_data/max3421-hcd.h
+++ b/include/linux/platform_data/max3421-hcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (c) 2014 eGauge Systems LLC
  *	Contributed by David Mosberger-Tang <davidm@egauge.net>
diff --git a/include/linux/platform_data/max6639.h b/include/linux/platform_data/max6639.h
index 6011c42034da..65bfdb4fdc15 100644
--- a/include/linux/platform_data/max6639.h
+++ b/include/linux/platform_data/max6639.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_MAX6639_H
 #define _LINUX_MAX6639_H
 
diff --git a/include/linux/platform_data/max732x.h b/include/linux/platform_data/max732x.h
index c04bac8bf2fe..f231c635faec 100644
--- a/include/linux/platform_data/max732x.h
+++ b/include/linux/platform_data/max732x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_I2C_MAX732X_H
 #define __LINUX_I2C_MAX732X_H
 
diff --git a/include/linux/platform_data/media/ir-rx51.h b/include/linux/platform_data/media/ir-rx51.h
index 2c94ab568bfa..9d127aa648e7 100644
--- a/include/linux/platform_data/media/ir-rx51.h
+++ b/include/linux/platform_data/media/ir-rx51.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IR_RX51_H
 #define _IR_RX51_H
 
diff --git a/include/linux/platform_data/media/mmp-camera.h b/include/linux/platform_data/media/mmp-camera.h
index 7611963a257f..83804028115c 100644
--- a/include/linux/platform_data/media/mmp-camera.h
+++ b/include/linux/platform_data/media/mmp-camera.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Information for the Marvell Armada MMP camera
  */
diff --git a/include/linux/platform_data/media/omap4iss.h b/include/linux/platform_data/media/omap4iss.h
index 0d7620db5e32..2a511a8fcda7 100644
--- a/include/linux/platform_data/media/omap4iss.h
+++ b/include/linux/platform_data/media/omap4iss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_ARM_PLAT_OMAP4_ISS_H
 #define ARCH_ARM_PLAT_OMAP4_ISS_H
 
diff --git a/include/linux/platform_data/mmc-davinci.h b/include/linux/platform_data/mmc-davinci.h
index 9cea4ee377b5..87a8bed3b6cb 100644
--- a/include/linux/platform_data/mmc-davinci.h
+++ b/include/linux/platform_data/mmc-davinci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Board-specific MMC configuration
  */
diff --git a/include/linux/platform_data/mmc-mxcmmc.h b/include/linux/platform_data/mmc-mxcmmc.h
index b0fdaa9bd185..ac677351316a 100644
--- a/include/linux/platform_data/mmc-mxcmmc.h
+++ b/include/linux/platform_data/mmc-mxcmmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_MMC_H
 #define ASMARM_ARCH_MMC_H
 
diff --git a/include/linux/platform_data/mmc-pxamci.h b/include/linux/platform_data/mmc-pxamci.h
index 1706b3597ce0..752f97c62ef2 100644
--- a/include/linux/platform_data/mmc-pxamci.h
+++ b/include/linux/platform_data/mmc-pxamci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_MMC_H
 #define ASMARM_ARCH_MMC_H
 
diff --git a/include/linux/platform_data/mmc-s3cmci.h b/include/linux/platform_data/mmc-s3cmci.h
index c42d31711944..b68d9f0bdd9e 100644
--- a/include/linux/platform_data/mmc-s3cmci.h
+++ b/include/linux/platform_data/mmc-s3cmci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ARCH_MCI_H
 #define _ARCH_MCI_H
 
diff --git a/include/linux/platform_data/mmc-sdhci-s3c.h b/include/linux/platform_data/mmc-sdhci-s3c.h
index 249f02387a35..74a54eeb27b1 100644
--- a/include/linux/platform_data/mmc-sdhci-s3c.h
+++ b/include/linux/platform_data/mmc-sdhci-s3c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLATFORM_DATA_SDHCI_S3C_H
 #define __PLATFORM_DATA_SDHCI_S3C_H
 
diff --git a/include/linux/platform_data/mouse-pxa930_trkball.h b/include/linux/platform_data/mouse-pxa930_trkball.h
index 5e0789bc4729..ba0ac7a30d8c 100644
--- a/include/linux/platform_data/mouse-pxa930_trkball.h
+++ b/include/linux/platform_data/mouse-pxa930_trkball.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA930_TRKBALL_H
 #define __ASM_ARCH_PXA930_TRKBALL_H
 
diff --git a/include/linux/platform_data/mtd-nand-pxa3xx.h b/include/linux/platform_data/mtd-nand-pxa3xx.h
index 394d15597dc7..b42ad83cbc20 100644
--- a/include/linux/platform_data/mtd-nand-pxa3xx.h
+++ b/include/linux/platform_data/mtd-nand-pxa3xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_ARCH_PXA3XX_NAND_H
 #define __ASM_ARCH_PXA3XX_NAND_H
 
diff --git a/include/linux/platform_data/omap1_bl.h b/include/linux/platform_data/omap1_bl.h
index 881a8e92d605..5e8b17d77a5f 100644
--- a/include/linux/platform_data/omap1_bl.h
+++ b/include/linux/platform_data/omap1_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OMAP1_BL_H__
 #define __OMAP1_BL_H__
 
diff --git a/include/linux/platform_data/pca953x.h b/include/linux/platform_data/pca953x.h
index 3c98dd4f901f..4eb53e023997 100644
--- a/include/linux/platform_data/pca953x.h
+++ b/include/linux/platform_data/pca953x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PCA953X_H
 #define _LINUX_PCA953X_H
 
diff --git a/include/linux/platform_data/pcf857x.h b/include/linux/platform_data/pcf857x.h
index 0767a2a6b2f1..11d4ed78c7f4 100644
--- a/include/linux/platform_data/pcf857x.h
+++ b/include/linux/platform_data/pcf857x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PCF857X_H
 #define __LINUX_PCF857X_H
 
diff --git a/include/linux/platform_data/pcmcia-pxa2xx_viper.h b/include/linux/platform_data/pcmcia-pxa2xx_viper.h
index d428be4db44c..a23b58aff9e1 100644
--- a/include/linux/platform_data/pcmcia-pxa2xx_viper.h
+++ b/include/linux/platform_data/pcmcia-pxa2xx_viper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ARCOM_PCMCIA_H
 #define __ARCOM_PCMCIA_H
 
diff --git a/include/linux/platform_data/pinctrl-single.h b/include/linux/platform_data/pinctrl-single.h
index 72eacda9b360..1cf36fdf9510 100644
--- a/include/linux/platform_data/pinctrl-single.h
+++ b/include/linux/platform_data/pinctrl-single.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * irq:		optional wake-up interrupt
  * rearm:	optional soc specific rearm function
diff --git a/include/linux/platform_data/pixcir_i2c_ts.h b/include/linux/platform_data/pixcir_i2c_ts.h
index 646af6f8b838..4ab3cd6f1cc2 100644
--- a/include/linux/platform_data/pixcir_i2c_ts.h
+++ b/include/linux/platform_data/pixcir_i2c_ts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	_PIXCIR_I2C_TS_H
 #define	_PIXCIR_I2C_TS_H
 
diff --git a/include/linux/platform_data/pxa2xx_udc.h b/include/linux/platform_data/pxa2xx_udc.h
index c6c5e98b5b82..ff9c35dca59d 100644
--- a/include/linux/platform_data/pxa2xx_udc.h
+++ b/include/linux/platform_data/pxa2xx_udc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This supports machine-specific differences in how the PXA2xx
  * USB Device Controller (UDC) is wired.
diff --git a/include/linux/platform_data/sa11x0-serial.h b/include/linux/platform_data/sa11x0-serial.h
index 009e1d83fe39..8b79ab08af45 100644
--- a/include/linux/platform_data/sa11x0-serial.h
+++ b/include/linux/platform_data/sa11x0-serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Author: Nicolas Pitre
  *
diff --git a/include/linux/platform_data/sht15.h b/include/linux/platform_data/sht15.h
deleted file mode 100644
index 12289c1e9413..000000000000
--- a/include/linux/platform_data/sht15.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/*
- * sht15.h - support for the SHT15 Temperature and Humidity Sensor
- *
- * Copyright (c) 2009 Jonathan Cameron
- *
- * Copyright (c) 2007 Wouter Horre
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * For further information, see the Documentation/hwmon/sht15 file.
- */
-
-#ifndef _PDATA_SHT15_H
-#define _PDATA_SHT15_H
-
-/**
- * struct sht15_platform_data - sht15 connectivity info
- * @gpio_data:		no. of gpio to which bidirectional data line is
- *			connected.
- * @gpio_sck:		no. of gpio to which the data clock is connected.
- * @supply_mv:		supply voltage in mv. Overridden by regulator if
- *			available.
- * @checksum:		flag to indicate the checksum should be validated.
- * @no_otp_reload:	flag to indicate no reload from OTP.
- * @low_resolution:	flag to indicate the temp/humidity resolution to use.
- */
-struct sht15_platform_data {
-	int gpio_data;
-	int gpio_sck;
-	int supply_mv;
-	bool checksum;
-	bool no_otp_reload;
-	bool low_resolution;
-};
-
-#endif /* _PDATA_SHT15_H */
diff --git a/include/linux/platform_data/si5351.h b/include/linux/platform_data/si5351.h
index 533d9807e543..818c5c6e203f 100644
--- a/include/linux/platform_data/si5351.h
+++ b/include/linux/platform_data/si5351.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Si5351A/B/C programmable clock generator platform_data.
  */
diff --git a/include/linux/platform_data/spi-ep93xx.h b/include/linux/platform_data/spi-ep93xx.h
index 171a271c2cbd..eb16c6739ac2 100644
--- a/include/linux/platform_data/spi-ep93xx.h
+++ b/include/linux/platform_data/spi-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_MACH_EP93XX_SPI_H
 #define __ASM_MACH_EP93XX_SPI_H
 
diff --git a/include/linux/platform_data/spi-imx.h b/include/linux/platform_data/spi-imx.h
index 08be445e8eb8..6f012fefa1a2 100644
--- a/include/linux/platform_data/spi-imx.h
+++ b/include/linux/platform_data/spi-imx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __MACH_SPI_H_
 #define __MACH_SPI_H_
diff --git a/include/linux/platform_data/spi-omap2-mcspi.h b/include/linux/platform_data/spi-omap2-mcspi.h
index c100456eab17..13c83a25958a 100644
--- a/include/linux/platform_data/spi-omap2-mcspi.h
+++ b/include/linux/platform_data/spi-omap2-mcspi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _OMAP2_MCSPI_H
 #define _OMAP2_MCSPI_H
 
diff --git a/include/linux/platform_data/st1232_pdata.h b/include/linux/platform_data/st1232_pdata.h
index cac3e7b4c454..1dcd23bee24e 100644
--- a/include/linux/platform_data/st1232_pdata.h
+++ b/include/linux/platform_data/st1232_pdata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_ST1232_PDATA_H
 #define _LINUX_ST1232_PDATA_H
 
diff --git a/include/linux/platform_data/syscon.h b/include/linux/platform_data/syscon.h
index 2354c6fa3726..2c089dd3e2bd 100644
--- a/include/linux/platform_data/syscon.h
+++ b/include/linux/platform_data/syscon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PLATFORM_DATA_SYSCON_H
 #define PLATFORM_DATA_SYSCON_H
 
diff --git a/include/linux/platform_data/tsc2007.h b/include/linux/platform_data/tsc2007.h
index c2d3aa1dadd4..a0ca52c41ccb 100644
--- a/include/linux/platform_data/tsc2007.h
+++ b/include/linux/platform_data/tsc2007.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_I2C_TSC2007_H
 #define __LINUX_I2C_TSC2007_H
 
diff --git a/include/linux/platform_data/tsl2563.h b/include/linux/platform_data/tsl2563.h
index c90d7a09dda7..9cf9309c3f24 100644
--- a/include/linux/platform_data/tsl2563.h
+++ b/include/linux/platform_data/tsl2563.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TSL2563_H
 #define __LINUX_TSL2563_H
 
diff --git a/include/linux/platform_data/usb-ehci-mxc.h b/include/linux/platform_data/usb-ehci-mxc.h
index 157e71f79f99..ad9794d09bc8 100644
--- a/include/linux/platform_data/usb-ehci-mxc.h
+++ b/include/linux/platform_data/usb-ehci-mxc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __INCLUDE_ASM_ARCH_MXC_EHCI_H
 #define __INCLUDE_ASM_ARCH_MXC_EHCI_H
 
diff --git a/include/linux/platform_data/usb-ohci-pxa27x.h b/include/linux/platform_data/usb-ohci-pxa27x.h
index 95b6e2a6e514..69adea7694f3 100644
--- a/include/linux/platform_data/usb-ohci-pxa27x.h
+++ b/include/linux/platform_data/usb-ohci-pxa27x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASMARM_ARCH_OHCI_H
 #define ASMARM_ARCH_OHCI_H
 
diff --git a/include/linux/platform_data/usb3503.h b/include/linux/platform_data/usb3503.h
index 1d1b6ef871f6..e049d51c1353 100644
--- a/include/linux/platform_data/usb3503.h
+++ b/include/linux/platform_data/usb3503.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB3503_H__
 #define __USB3503_H__
 
diff --git a/include/linux/platform_data/video-clcd-versatile.h b/include/linux/platform_data/video-clcd-versatile.h
index 09ccf182af4d..305ebaec3afd 100644
--- a/include/linux/platform_data/video-clcd-versatile.h
+++ b/include/linux/platform_data/video-clcd-versatile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PLAT_CLCD_H
 #define PLAT_CLCD_H
 
diff --git a/include/linux/platform_data/video-ep93xx.h b/include/linux/platform_data/video-ep93xx.h
index 699ac4109366..a6f3ccdec1cb 100644
--- a/include/linux/platform_data/video-ep93xx.h
+++ b/include/linux/platform_data/video-ep93xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __VIDEO_EP93XX_H
 #define __VIDEO_EP93XX_H
 
diff --git a/include/linux/platform_data/video-imxfb.h b/include/linux/platform_data/video-imxfb.h
index cf9348b376ac..02812651af7d 100644
--- a/include/linux/platform_data/video-imxfb.h
+++ b/include/linux/platform_data/video-imxfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This structure describes the machine which we are running on.
  */
diff --git a/include/linux/platform_data/video_s3c.h b/include/linux/platform_data/video_s3c.h
index 48883995f47f..dd7747ba3269 100644
--- a/include/linux/platform_data/video_s3c.h
+++ b/include/linux/platform_data/video_s3c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PLATFORM_DATA_VIDEO_S3C
 #define __PLATFORM_DATA_VIDEO_S3C
 
diff --git a/include/linux/pm-trace.h b/include/linux/pm-trace.h
index 7b78793f07d7..b8604f8847d9 100644
--- a/include/linux/pm-trace.h
+++ b/include/linux/pm-trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PM_TRACE_H
 #define PM_TRACE_H
 
diff --git a/include/linux/pm.h b/include/linux/pm.h
index 47ded8aa8a5d..65d39115f06d 100644
--- a/include/linux/pm.h
+++ b/include/linux/pm.h
@@ -550,6 +550,33 @@ struct pm_subsys_data {
 #endif
 };
 
+/*
+ * Driver flags to control system suspend/resume behavior.
+ *
+ * These flags can be set by device drivers at the probe time.  They need not be
+ * cleared by the drivers as the driver core will take care of that.
+ *
+ * NEVER_SKIP: Do not skip system suspend/resume callbacks for the device.
+ * SMART_PREPARE: Check the return value of the driver's ->prepare callback.
+ * SMART_SUSPEND: No need to resume the device from runtime suspend.
+ *
+ * Setting SMART_PREPARE instructs bus types and PM domains which may want
+ * system suspend/resume callbacks to be skipped for the device to return 0 from
+ * their ->prepare callbacks if the driver's ->prepare callback returns 0 (in
+ * other words, the system suspend/resume callbacks can only be skipped for the
+ * device if its driver doesn't object against that).  This flag has no effect
+ * if NEVER_SKIP is set.
+ *
+ * Setting SMART_SUSPEND instructs bus types and PM domains which may want to
+ * runtime resume the device upfront during system suspend that doing so is not
+ * necessary from the driver's perspective.  It also may cause them to skip
+ * invocations of the ->suspend_late and ->suspend_noirq callbacks provided by
+ * the driver if they decide to leave the device in runtime suspend.
+ */
+#define DPM_FLAG_NEVER_SKIP	BIT(0)
+#define DPM_FLAG_SMART_PREPARE	BIT(1)
+#define DPM_FLAG_SMART_SUSPEND	BIT(2)
+
 struct dev_pm_info {
 	pm_message_t		power_state;
 	unsigned int		can_wakeup:1;
@@ -561,6 +588,7 @@ struct dev_pm_info {
 	bool			is_late_suspended:1;
 	bool			early_init:1;	/* Owned by the PM core */
 	bool			direct_complete:1;	/* Owned by the PM core */
+	u32			driver_flags;
 	spinlock_t		lock;
 #ifdef CONFIG_PM_SLEEP
 	struct list_head	entry;
@@ -736,7 +764,8 @@ extern int pm_generic_poweroff_noirq(struct device *dev);
 extern int pm_generic_poweroff_late(struct device *dev);
 extern int pm_generic_poweroff(struct device *dev);
 extern void pm_generic_complete(struct device *dev);
-extern void pm_complete_with_resume_check(struct device *dev);
+
+extern bool dev_pm_smart_suspend_and_suspended(struct device *dev);
 
 #else /* !CONFIG_PM_SLEEP */
 
diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 84f423d5633e..04dbef9847d3 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -18,9 +18,10 @@
 #include <linux/spinlock.h>
 
 /* Defines used for the flags field in the struct generic_pm_domain */
-#define GENPD_FLAG_PM_CLK	(1U << 0) /* PM domain uses PM clk */
-#define GENPD_FLAG_IRQ_SAFE	(1U << 1) /* PM domain operates in atomic */
-#define GENPD_FLAG_ALWAYS_ON	(1U << 2) /* PM domain is always powered on */
+#define GENPD_FLAG_PM_CLK	 (1U << 0) /* PM domain uses PM clk */
+#define GENPD_FLAG_IRQ_SAFE	 (1U << 1) /* PM domain operates in atomic */
+#define GENPD_FLAG_ALWAYS_ON	 (1U << 2) /* PM domain is always powered on */
+#define GENPD_FLAG_ACTIVE_WAKEUP (1U << 3) /* Keep devices active if wakeup */
 
 enum gpd_status {
 	GPD_STATE_ACTIVE = 0,	/* PM domain is active */
@@ -35,7 +36,6 @@ struct dev_power_governor {
 struct gpd_dev_ops {
 	int (*start)(struct device *dev);
 	int (*stop)(struct device *dev);
-	bool (*active_wakeup)(struct device *dev);
 };
 
 struct genpd_power_state {
@@ -64,8 +64,11 @@ struct generic_pm_domain {
 	unsigned int device_count;	/* Number of devices */
 	unsigned int suspended_count;	/* System suspend device counter */
 	unsigned int prepared_count;	/* Suspend counter of prepared devices */
+	unsigned int performance_state;	/* Aggregated max performance state */
 	int (*power_off)(struct generic_pm_domain *domain);
 	int (*power_on)(struct generic_pm_domain *domain);
+	int (*set_performance_state)(struct generic_pm_domain *genpd,
+				     unsigned int state);
 	struct gpd_dev_ops dev_ops;
 	s64 max_off_time_ns;	/* Maximum allowed "suspended" time. */
 	bool max_off_time_changed;
@@ -121,6 +124,7 @@ struct generic_pm_domain_data {
 	struct pm_domain_data base;
 	struct gpd_timing_data td;
 	struct notifier_block nb;
+	unsigned int performance_state;
 	void *data;
 };
 
@@ -148,6 +152,8 @@ extern int pm_genpd_remove_subdomain(struct generic_pm_domain *genpd,
 extern int pm_genpd_init(struct generic_pm_domain *genpd,
 			 struct dev_power_governor *gov, bool is_off);
 extern int pm_genpd_remove(struct generic_pm_domain *genpd);
+extern int dev_pm_genpd_set_performance_state(struct device *dev,
+					      unsigned int state);
 
 extern struct dev_power_governor simple_qos_governor;
 extern struct dev_power_governor pm_domain_always_on_gov;
@@ -188,6 +194,12 @@ static inline int pm_genpd_remove(struct generic_pm_domain *genpd)
 	return -ENOTSUPP;
 }
 
+static inline int dev_pm_genpd_set_performance_state(struct device *dev,
+						     unsigned int state)
+{
+	return -ENOTSUPP;
+}
+
 #define simple_qos_governor		(*(struct dev_power_governor *)(NULL))
 #define pm_domain_always_on_gov		(*(struct dev_power_governor *)(NULL))
 #endif
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
index 51ec727b4824..6c2d2e88f066 100644
--- a/include/linux/pm_opp.h
+++ b/include/linux/pm_opp.h
@@ -124,7 +124,9 @@ void dev_pm_opp_put_regulators(struct opp_table *opp_table);
 struct opp_table *dev_pm_opp_set_clkname(struct device *dev, const char * name);
 void dev_pm_opp_put_clkname(struct opp_table *opp_table);
 struct opp_table *dev_pm_opp_register_set_opp_helper(struct device *dev, int (*set_opp)(struct dev_pm_set_opp_data *data));
-void dev_pm_opp_register_put_opp_helper(struct opp_table *opp_table);
+void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table);
+struct opp_table *dev_pm_opp_register_get_pstate_helper(struct device *dev, int (*get_pstate)(struct device *dev, unsigned long rate));
+void dev_pm_opp_unregister_get_pstate_helper(struct opp_table *opp_table);
 int dev_pm_opp_set_rate(struct device *dev, unsigned long target_freq);
 int dev_pm_opp_set_sharing_cpus(struct device *cpu_dev, const struct cpumask *cpumask);
 int dev_pm_opp_get_sharing_cpus(struct device *cpu_dev, struct cpumask *cpumask);
@@ -243,7 +245,15 @@ static inline struct opp_table *dev_pm_opp_register_set_opp_helper(struct device
 	return ERR_PTR(-ENOTSUPP);
 }
 
-static inline void dev_pm_opp_register_put_opp_helper(struct opp_table *opp_table) {}
+static inline void dev_pm_opp_unregister_set_opp_helper(struct opp_table *opp_table) {}
+
+static inline struct opp_table *dev_pm_opp_register_get_pstate_helper(struct device *dev,
+		int (*get_pstate)(struct device *dev, unsigned long rate))
+{
+	return ERR_PTR(-ENOTSUPP);
+}
+
+static inline void dev_pm_opp_unregister_get_pstate_helper(struct opp_table *opp_table) {}
 
 static inline struct opp_table *dev_pm_opp_set_prop_name(struct device *dev, const char *name)
 {
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 032b55909145..6ea1ae373d77 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PM_QOS_H
 #define _LINUX_PM_QOS_H
 /* interface for the pm_qos_power infrastructure of the linux kernel.
@@ -27,19 +28,21 @@ enum pm_qos_flags_status {
 	PM_QOS_FLAGS_ALL,
 };
 
-#define PM_QOS_DEFAULT_VALUE -1
+#define PM_QOS_DEFAULT_VALUE	(-1)
+#define PM_QOS_LATENCY_ANY	S32_MAX
+#define PM_QOS_LATENCY_ANY_NS	((s64)PM_QOS_LATENCY_ANY * NSEC_PER_USEC)
 
 #define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE	(2000 * USEC_PER_SEC)
 #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE	(2000 * USEC_PER_SEC)
 #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE	0
 #define PM_QOS_MEMORY_BANDWIDTH_DEFAULT_VALUE	0
-#define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE	0
+#define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE	PM_QOS_LATENCY_ANY
+#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT	PM_QOS_LATENCY_ANY
+#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS	PM_QOS_LATENCY_ANY_NS
 #define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE	0
 #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT	(-1)
-#define PM_QOS_LATENCY_ANY			((s32)(~(__u32)0 >> 1))
 
 #define PM_QOS_FLAG_NO_POWER_OFF	(1 << 0)
-#define PM_QOS_FLAG_REMOTE_WAKEUP	(1 << 1)
 
 struct pm_qos_request {
 	struct plist_node node;
@@ -174,7 +177,8 @@ static inline s32 dev_pm_qos_requested_flags(struct device *dev)
 static inline s32 dev_pm_qos_raw_read_value(struct device *dev)
 {
 	return IS_ERR_OR_NULL(dev->power.qos) ?
-		0 : pm_qos_read_value(&dev->power.qos->resume_latency);
+		PM_QOS_RESUME_LATENCY_NO_CONSTRAINT :
+		pm_qos_read_value(&dev->power.qos->resume_latency);
 }
 #else
 static inline enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev,
@@ -184,9 +188,9 @@ static inline enum pm_qos_flags_status dev_pm_qos_flags(struct device *dev,
 							s32 mask)
 			{ return PM_QOS_FLAGS_UNDEFINED; }
 static inline s32 __dev_pm_qos_read_value(struct device *dev)
-			{ return 0; }
+			{ return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; }
 static inline s32 dev_pm_qos_read_value(struct device *dev)
-			{ return 0; }
+			{ return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT; }
 static inline int dev_pm_qos_add_request(struct device *dev,
 					 struct dev_pm_qos_request *req,
 					 enum dev_pm_qos_req_type type,
@@ -232,9 +236,15 @@ static inline int dev_pm_qos_expose_latency_tolerance(struct device *dev)
 			{ return 0; }
 static inline void dev_pm_qos_hide_latency_tolerance(struct device *dev) {}
 
-static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev) { return 0; }
+static inline s32 dev_pm_qos_requested_resume_latency(struct device *dev)
+{
+	return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
+}
 static inline s32 dev_pm_qos_requested_flags(struct device *dev) { return 0; }
-static inline s32 dev_pm_qos_raw_read_value(struct device *dev) { return 0; }
+static inline s32 dev_pm_qos_raw_read_value(struct device *dev)
+{
+	return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
+}
 #endif
 
 #endif
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 2efb08a60e63..f0fc4700b6ff 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -105,7 +105,7 @@ static inline bool pm_runtime_callbacks_present(struct device *dev)
 
 static inline void pm_runtime_mark_last_busy(struct device *dev)
 {
-	ACCESS_ONCE(dev->power.last_busy) = jiffies;
+	WRITE_ONCE(dev->power.last_busy, jiffies);
 }
 
 static inline bool pm_runtime_is_irq_safe(struct device *dev)
diff --git a/include/linux/pmu.h b/include/linux/pmu.h
index 99b400b8a241..9ac8fc60ad49 100644
--- a/include/linux/pmu.h
+++ b/include/linux/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for talking to the PMU.  The PMU is a microcontroller
  * which controls battery charging and system power on PowerBook 3400
diff --git a/include/linux/pnp.h b/include/linux/pnp.h
index 2588ca6a9028..3b12fd28af78 100644
--- a/include/linux/pnp.h
+++ b/include/linux/pnp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux Plug and Play Support
  * Copyright by Adam Belay <ambx1@neo.rr.com>
diff --git a/include/linux/poison.h b/include/linux/poison.h
index a39540326417..15927ebc22f2 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_POISON_H
 #define _LINUX_POISON_H
 
diff --git a/include/linux/poll.h b/include/linux/poll.h
index 2889f09a1c60..d384f12abdd5 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_POLL_H
 #define _LINUX_POLL_H
 
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
index 62839fd04dce..672c4f32311e 100644
--- a/include/linux/posix-timers.h
+++ b/include/linux/posix-timers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _linux_POSIX_TIMERS_H
 #define _linux_POSIX_TIMERS_H
 
diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
index 5a9a739acdd5..b2b7255ec7f5 100644
--- a/include/linux/posix_acl.h
+++ b/include/linux/posix_acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/posix_acl.h
 
diff --git a/include/linux/posix_acl_xattr.h b/include/linux/posix_acl_xattr.h
index 8b867e3bf3aa..2387709991b5 100644
--- a/include/linux/posix_acl_xattr.h
+++ b/include/linux/posix_acl_xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/posix_acl_xattr.h
 
diff --git a/include/linux/power/bq27xxx_battery.h b/include/linux/power/bq27xxx_battery.h
index 43194e02c1ee..e6187f524f2c 100644
--- a/include/linux/power/bq27xxx_battery.h
+++ b/include/linux/power/bq27xxx_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_BQ27X00_BATTERY_H__
 #define __LINUX_BQ27X00_BATTERY_H__
 
diff --git a/include/linux/pr.h b/include/linux/pr.h
index 65c01c10b335..94ceec713afe 100644
--- a/include/linux/pr.h
+++ b/include/linux/pr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_PR_H
 #define LINUX_PR_H
 
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index cae461224948..5bd3f151da78 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PREEMPT_H
 #define __LINUX_PREEMPT_H
 
diff --git a/include/linux/prefetch.h b/include/linux/prefetch.h
index a3bfbdf63d32..13eafebf3549 100644
--- a/include/linux/prefetch.h
+++ b/include/linux/prefetch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Generic cache management functions. Everything is arch-specific,  
  *  but this header exists to make sure the defines/functions can be
diff --git a/include/linux/prime_numbers.h b/include/linux/prime_numbers.h
index 14ec4f567342..2b8e99c948d3 100644
--- a/include/linux/prime_numbers.h
+++ b/include/linux/prime_numbers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PRIME_NUMBERS_H
 #define __LINUX_PRIME_NUMBERS_H
 
diff --git a/include/linux/printk.h b/include/linux/printk.h
index e10f27468322..905bba92f015 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KERNEL_PRINTK__
 #define __KERNEL_PRINTK__
 
@@ -188,7 +189,6 @@ extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
 
 extern int printk_delay_msec;
 extern int dmesg_restrict;
-extern int kptr_restrict;
 
 extern int
 devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write, void __user *buf,
@@ -279,6 +279,8 @@ static inline void printk_safe_flush_on_panic(void)
 }
 #endif
 
+extern int kptr_restrict;
+
 extern asmlinkage void dump_stack(void) __cold;
 
 #ifndef pr_fmt
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 76124dd4e36d..928ef9e4d912 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The proc filesystem constants/structures
  */
diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 06844b54dfc1..2ff18c9840a7 100644
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * procfs namespace bits
  */
diff --git a/include/linux/processor.h b/include/linux/processor.h
index da0c5e56ca02..dbc952eec869 100644
--- a/include/linux/processor.h
+++ b/include/linux/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Misc low level processor primitives */
 #ifndef _LINUX_PROCESSOR_H
 #define _LINUX_PROCESSOR_H
diff --git a/include/linux/profile.h b/include/linux/profile.h
index b537a25ffa17..bad18ca43150 100644
--- a/include/linux/profile.h
+++ b/include/linux/profile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PROFILE_H
 #define _LINUX_PROFILE_H
 
diff --git a/include/linux/projid.h b/include/linux/projid.h
index 8c1f2c55226d..613730622a1a 100644
--- a/include/linux/projid.h
+++ b/include/linux/projid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PROJID_H
 #define _LINUX_PROJID_H
 
diff --git a/include/linux/property.h b/include/linux/property.h
index 6bebee13c5e0..f6189a3ac63c 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -100,7 +100,7 @@ struct fwnode_handle *fwnode_get_named_child_node(
 struct fwnode_handle *device_get_named_child_node(struct device *dev,
 						  const char *childname);
 
-void fwnode_handle_get(struct fwnode_handle *fwnode);
+struct fwnode_handle *fwnode_handle_get(struct fwnode_handle *fwnode);
 void fwnode_handle_put(struct fwnode_handle *fwnode);
 
 unsigned int device_get_child_node_count(struct device *dev);
@@ -293,6 +293,10 @@ struct fwnode_handle *
 fwnode_graph_get_remote_node(const struct fwnode_handle *fwnode, u32 port,
 			     u32 endpoint);
 
+#define fwnode_graph_for_each_endpoint(fwnode, child)			\
+	for (child = NULL;						\
+	     (child = fwnode_graph_get_next_endpoint(fwnode, child)); )
+
 int fwnode_graph_parse_endpoint(const struct fwnode_handle *fwnode,
 				struct fwnode_endpoint *endpoint);
 
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h
index 0e5fcc11b1b8..919b2a0b0307 100644
--- a/include/linux/ptrace.h
+++ b/include/linux/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PTRACE_H
 #define _LINUX_PTRACE_H
 
diff --git a/include/linux/purgatory.h b/include/linux/purgatory.h
index d60d4e278609..b950e961cfa8 100644
--- a/include/linux/purgatory.h
+++ b/include/linux/purgatory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_PURGATORY_H
 #define _LINUX_PURGATORY_H
 
diff --git a/include/linux/pvclock_gtod.h b/include/linux/pvclock_gtod.h
index a71d2dbd3610..f63549581f3e 100644
--- a/include/linux/pvclock_gtod.h
+++ b/include/linux/pvclock_gtod.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PVCLOCK_GTOD_H
 #define _PVCLOCK_GTOD_H
 
diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 08fad7c6a471..56518adc31dd 100644
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PWM_H
 #define __LINUX_PWM_H
 
diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index efdd9227a49c..e8afbd71a140 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generic PWM backlight driver data - see drivers/video/backlight/pwm_bl.c
  */
diff --git a/include/linux/pxa168_eth.h b/include/linux/pxa168_eth.h
index e1ab6e86cdb3..fb09c2c7cb75 100644
--- a/include/linux/pxa168_eth.h
+++ b/include/linux/pxa168_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *pxa168 ethernet platform device data definition file.
  */
diff --git a/include/linux/qed/qed_fcoe_if.h b/include/linux/qed/qed_fcoe_if.h
index 1e015c50e6b8..46082480a2c3 100644
--- a/include/linux/qed/qed_fcoe_if.h
+++ b/include/linux/qed/qed_fcoe_if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _QED_FCOE_IF_H
 #define _QED_FCOE_IF_H
 #include <linux/types.h>
diff --git a/include/linux/qnx6_fs.h b/include/linux/qnx6_fs.h
index 26049eab9010..13373d437cf2 100644
--- a/include/linux/qnx6_fs.h
+++ b/include/linux/qnx6_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Name                 : qnx6_fs.h
  *  Author               : Kai Bankett
diff --git a/include/linux/quicklist.h b/include/linux/quicklist.h
index 3bdfa70bc642..034982c98c8b 100644
--- a/include/linux/quicklist.h
+++ b/include/linux/quicklist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_QUICKLIST_H
 #define LINUX_QUICKLIST_H
 /*
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index 0ce6fc49962e..2fb6fb11132e 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions for diskquota-operations. When diskquota is configured these
  * macros expand to the right source-code.
diff --git a/include/linux/raid/xor.h b/include/linux/raid/xor.h
index 5a210959e3f8..2a9fee8ddae3 100644
--- a/include/linux/raid/xor.h
+++ b/include/linux/raid/xor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XOR_H
 #define _XOR_H
 
diff --git a/include/linux/ramfs.h b/include/linux/ramfs.h
index ecc730977a5a..5ef7d54caac2 100644
--- a/include/linux/ramfs.h
+++ b/include/linux/ramfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RAMFS_H
 #define _LINUX_RAMFS_H
 
diff --git a/include/linux/random.h b/include/linux/random.h
index eafea6a09361..4024f7d9c77d 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/random.h
  *
diff --git a/include/linux/range.h b/include/linux/range.h
index bd184a5db791..d1fbeb664012 100644
--- a/include/linux/range.h
+++ b/include/linux/range.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RANGE_H
 #define _LINUX_RANGE_H
 
diff --git a/include/linux/ras.h b/include/linux/ras.h
index be5338a35d57..7c3debb47c87 100644
--- a/include/linux/ras.h
+++ b/include/linux/ras.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RAS_H__
 #define __RAS_H__
 
diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
index 56375edf2ed2..8ddf79e9207a 100644
--- a/include/linux/ratelimit.h
+++ b/include/linux/ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RATELIMIT_H
 #define _LINUX_RATELIMIT_H
 
diff --git a/include/linux/rational.h b/include/linux/rational.h
index bfa6a2bcfb32..33f5f5fc3e36 100644
--- a/include/linux/rational.h
+++ b/include/linux/rational.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * rational fractions
  *
diff --git a/include/linux/rbtree_latch.h b/include/linux/rbtree_latch.h
index 4f3432c61d12..ece43e882b56 100644
--- a/include/linux/rbtree_latch.h
+++ b/include/linux/rbtree_latch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Latched RB-trees
  *
diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index b1fd8bf85fdc..127f534fec94 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCULIST_H
 #define _LINUX_RCULIST_H
 
@@ -274,9 +275,9 @@ static inline void list_splice_tail_init_rcu(struct list_head *list,
  * primitives such as list_add_rcu() as long as it's guarded by rcu_read_lock().
  */
 #define list_entry_rcu(ptr, type, member) \
-	container_of(lockless_dereference(ptr), type, member)
+	container_of(READ_ONCE(ptr), type, member)
 
-/**
+/*
  * Where are list_empty_rcu() and list_first_entry_rcu()?
  *
  * Implementing those functions following their counterparts list_empty() and
@@ -367,7 +368,7 @@ static inline void list_splice_tail_init_rcu(struct list_head *list,
  * example is when items are added to the list, but never deleted.
  */
 #define list_entry_lockless(ptr, type, member) \
-	container_of((typeof(ptr))lockless_dereference(ptr), type, member)
+	container_of((typeof(ptr))READ_ONCE(ptr), type, member)
 
 /**
  * list_for_each_entry_lockless - iterate over rcu list of given type
diff --git a/include/linux/rculist_bl.h b/include/linux/rculist_bl.h
index 4f216c59e7db..66e73ec1aa99 100644
--- a/include/linux/rculist_bl.h
+++ b/include/linux/rculist_bl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCULIST_BL_H
 #define _LINUX_RCULIST_BL_H
 
diff --git a/include/linux/rculist_nulls.h b/include/linux/rculist_nulls.h
index a23a33153180..a328e8181e49 100644
--- a/include/linux/rculist_nulls.h
+++ b/include/linux/rculist_nulls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCULIST_NULLS_H
 #define _LINUX_RCULIST_NULLS_H
 
diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index de50d8a4cf41..a6ddc42f87a5 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -346,7 +346,7 @@ static inline void rcu_preempt_sleep_check(void) { }
 #define __rcu_dereference_check(p, c, space) \
 ({ \
 	/* Dependency order vs. p above. */ \
-	typeof(*p) *________p1 = (typeof(*p) *__force)lockless_dereference(p); \
+	typeof(*p) *________p1 = (typeof(*p) *__force)READ_ONCE(p); \
 	RCU_LOCKDEP_WARN(!(c), "suspicious rcu_dereference_check() usage"); \
 	rcu_dereference_sparse(p, space); \
 	((typeof(*p) __force __kernel *)(________p1)); \
@@ -360,7 +360,7 @@ static inline void rcu_preempt_sleep_check(void) { }
 #define rcu_dereference_raw(p) \
 ({ \
 	/* Dependency order vs. p above. */ \
-	typeof(p) ________p1 = lockless_dereference(p); \
+	typeof(p) ________p1 = READ_ONCE(p); \
 	((typeof(*p) __force __kernel *)(________p1)); \
 })
 
@@ -523,7 +523,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  * Return the value of the specified RCU-protected pointer, but omit
  * both the smp_read_barrier_depends() and the READ_ONCE().  This
  * is useful in cases where update-side locks prevent the value of the
- * pointer from changing.  Please note that this primitive does -not-
+ * pointer from changing.  Please note that this primitive does *not*
  * prevent the compiler from repeating this reference or combining it
  * with other references, so it should not be used without protection
  * of appropriate locks.
@@ -568,7 +568,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  * is handed off from RCU to some other synchronization mechanism, for
  * example, reference counting or locking.  In C11, it would map to
  * kill_dependency().  It could be used as follows:
- *
+ * ``
  *	rcu_read_lock();
  *	p = rcu_dereference(gp);
  *	long_lived = is_long_lived(p);
@@ -579,6 +579,7 @@ static inline void rcu_preempt_sleep_check(void) { }
  *			p = rcu_pointer_handoff(p);
  *	}
  *	rcu_read_unlock();
+ *``
  */
 #define rcu_pointer_handoff(p) (p)
 
@@ -778,18 +779,21 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
 
 /**
  * RCU_INIT_POINTER() - initialize an RCU protected pointer
+ * @p: The pointer to be initialized.
+ * @v: The value to initialized the pointer to.
  *
  * Initialize an RCU-protected pointer in special cases where readers
  * do not need ordering constraints on the CPU or the compiler.  These
  * special cases are:
  *
- * 1.	This use of RCU_INIT_POINTER() is NULLing out the pointer -or-
+ * 1.	This use of RCU_INIT_POINTER() is NULLing out the pointer *or*
  * 2.	The caller has taken whatever steps are required to prevent
- *	RCU readers from concurrently accessing this pointer -or-
+ *	RCU readers from concurrently accessing this pointer *or*
  * 3.	The referenced data structure has already been exposed to
- *	readers either at compile time or via rcu_assign_pointer() -and-
- *	a.	You have not made -any- reader-visible changes to
- *		this structure since then -or-
+ *	readers either at compile time or via rcu_assign_pointer() *and*
+ *
+ *	a.	You have not made *any* reader-visible changes to
+ *		this structure since then *or*
  *	b.	It is OK for readers accessing this structure from its
  *		new location to see the old state of the structure.  (For
  *		example, the changes were to statistical counters or to
@@ -805,7 +809,7 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
  * by a single external-to-structure RCU-protected pointer, then you may
  * use RCU_INIT_POINTER() to initialize the internal RCU-protected
  * pointers, but you must use rcu_assign_pointer() to initialize the
- * external-to-structure pointer -after- you have completely initialized
+ * external-to-structure pointer *after* you have completely initialized
  * the reader-accessible portions of the linked structure.
  *
  * Note that unlike rcu_assign_pointer(), RCU_INIT_POINTER() provides no
@@ -819,6 +823,8 @@ static inline notrace void rcu_read_unlock_sched_notrace(void)
 
 /**
  * RCU_POINTER_INITIALIZER() - statically initialize an RCU protected pointer
+ * @p: The pointer to be initialized.
+ * @v: The value to initialized the pointer to.
  *
  * GCC-style initialization for an RCU-protected pointer in a structure field.
  */
diff --git a/include/linux/rcupdate_wait.h b/include/linux/rcupdate_wait.h
index e774b4f5f220..57f371344152 100644
--- a/include/linux/rcupdate_wait.h
+++ b/include/linux/rcupdate_wait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_RCUPDATE_WAIT_H
 #define _LINUX_SCHED_RCUPDATE_WAIT_H
 
diff --git a/include/linux/rcuwait.h b/include/linux/rcuwait.h
index a4ede51b3e7c..90bfa3279a01 100644
--- a/include/linux/rcuwait.h
+++ b/include/linux/rcuwait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RCUWAIT_H_
 #define _LINUX_RCUWAIT_H_
 
diff --git a/include/linux/reboot-mode.h b/include/linux/reboot-mode.h
index 75f7fe5c881f..4a2abb38d1d6 100644
--- a/include/linux/reboot-mode.h
+++ b/include/linux/reboot-mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REBOOT_MODE_H__
 #define __REBOOT_MODE_H__
 
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index a7ff409f386d..d03da0eb95ca 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_REBOOT_H
 #define _LINUX_REBOOT_H
 
diff --git a/include/linux/reciprocal_div.h b/include/linux/reciprocal_div.h
index 8c5a3fb6c6c5..e031e9f2f9d8 100644
--- a/include/linux/reciprocal_div.h
+++ b/include/linux/reciprocal_div.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RECIPROCAL_DIV_H
 #define _LINUX_RECIPROCAL_DIV_H
 
diff --git a/include/linux/refcount.h b/include/linux/refcount.h
index 48b7c9c68c4d..e8286585e149 100644
--- a/include/linux/refcount.h
+++ b/include/linux/refcount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_REFCOUNT_H
 #define _LINUX_REFCOUNT_H
 
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 978abfbac617..15eddc1353ba 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -120,21 +120,65 @@ struct reg_sequence {
  */
 #define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_us) \
 ({ \
-	ktime_t timeout = ktime_add_us(ktime_get(), timeout_us); \
+	u64 __timeout_us = (timeout_us); \
+	unsigned long __sleep_us = (sleep_us); \
+	ktime_t __timeout = ktime_add_us(ktime_get(), __timeout_us); \
+	int __ret; \
+	might_sleep_if(__sleep_us); \
+	for (;;) { \
+		__ret = regmap_read((map), (addr), &(val)); \
+		if (__ret) \
+			break; \
+		if (cond) \
+			break; \
+		if ((__timeout_us) && \
+		    ktime_compare(ktime_get(), __timeout) > 0) { \
+			__ret = regmap_read((map), (addr), &(val)); \
+			break; \
+		} \
+		if (__sleep_us) \
+			usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
+	} \
+	__ret ?: ((cond) ? 0 : -ETIMEDOUT); \
+})
+
+/**
+ * regmap_field_read_poll_timeout - Poll until a condition is met or timeout
+ *
+ * @field: Regmap field to read from
+ * @val: Unsigned integer variable to read the value into
+ * @cond: Break condition (usually involving @val)
+ * @sleep_us: Maximum time to sleep between reads in us (0
+ *            tight-loops).  Should be less than ~20ms since usleep_range
+ *            is used (see Documentation/timers/timers-howto.txt).
+ * @timeout_us: Timeout in us, 0 means never timeout
+ *
+ * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_field_read
+ * error return value in case of a error read. In the two former cases,
+ * the last read value at @addr is stored in @val. Must not be called
+ * from atomic context if sleep_us or timeout_us are used.
+ *
+ * This is modelled after the readx_poll_timeout macros in linux/iopoll.h.
+ */
+#define regmap_field_read_poll_timeout(field, val, cond, sleep_us, timeout_us) \
+({ \
+	u64 __timeout_us = (timeout_us); \
+	unsigned long __sleep_us = (sleep_us); \
+	ktime_t timeout = ktime_add_us(ktime_get(), __timeout_us); \
 	int pollret; \
-	might_sleep_if(sleep_us); \
+	might_sleep_if(__sleep_us); \
 	for (;;) { \
-		pollret = regmap_read((map), (addr), &(val)); \
+		pollret = regmap_field_read((field), &(val)); \
 		if (pollret) \
 			break; \
 		if (cond) \
 			break; \
-		if (timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
-			pollret = regmap_read((map), (addr), &(val)); \
+		if (__timeout_us && ktime_compare(ktime_get(), timeout) > 0) { \
+			pollret = regmap_field_read((field), &(val)); \
 			break; \
 		} \
-		if (sleep_us) \
-			usleep_range((sleep_us >> 2) + 1, sleep_us); \
+		if (__sleep_us) \
+			usleep_range((__sleep_us >> 2) + 1, __sleep_us); \
 	} \
 	pollret ?: ((cond) ? 0 : -ETIMEDOUT); \
 })
@@ -273,6 +317,9 @@ typedef void (*regmap_unlock)(void *);
  *
  * @ranges: Array of configuration entries for virtual address ranges.
  * @num_ranges: Number of range configuration entries.
+ * @hwlock_id: Specify the hardware spinlock id.
+ * @hwlock_mode: The hardware spinlock mode, should be HWLOCK_IRQSTATE,
+ *		 HWLOCK_IRQ or 0.
  */
 struct regmap_config {
 	const char *name;
@@ -317,6 +364,9 @@ struct regmap_config {
 
 	const struct regmap_range_cfg *ranges;
 	unsigned int num_ranges;
+
+	unsigned int hwlock_id;
+	unsigned int hwlock_mode;
 };
 
 /**
diff --git a/include/linux/regulator/da9211.h b/include/linux/regulator/da9211.h
index 80cb40b7c88d..f2fd2d3bf58f 100644
--- a/include/linux/regulator/da9211.h
+++ b/include/linux/regulator/da9211.h
@@ -1,6 +1,6 @@
 /*
  * da9211.h - Regulator device driver for DA9211/DA9212
- * /DA9213/DA9214/DA9215
+ * /DA9213/DA9223/DA9214/DA9224/DA9215/DA9225
  * Copyright (C) 2015  Dialog Semiconductor Ltd.
  *
  * This program is free software; you can redistribute it and/or
@@ -25,8 +25,11 @@ enum da9211_chip_id {
 	DA9211,
 	DA9212,
 	DA9213,
+	DA9223,
 	DA9214,
+	DA9224,
 	DA9215,
+	DA9225,
 };
 
 struct da9211_pdata {
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
index 763953f7e3b8..df7f154a2ed5 100644
--- a/include/linux/regulator/of_regulator.h
+++ b/include/linux/regulator/of_regulator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * OpenFirmware regulator support routines
  *
diff --git a/include/linux/regulator/userspace-consumer.h b/include/linux/regulator/userspace-consumer.h
index b4554ce9d4bb..b5dba0628951 100644
--- a/include/linux/regulator/userspace-consumer.h
+++ b/include/linux/regulator/userspace-consumer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REGULATOR_PLATFORM_CONSUMER_H_
 #define __REGULATOR_PLATFORM_CONSUMER_H_
 
diff --git a/include/linux/relay.h b/include/linux/relay.h
index 68c1448e56bb..e1bdf01a86e2 100644
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/relay.h
  *
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index db1fe6772ad5..adb88f8cefbc 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RESET_CONTROLLER_H_
 #define _LINUX_RESET_CONTROLLER_H_
 
diff --git a/include/linux/reset.h b/include/linux/reset.h
index 56463f37f3e6..4c7871ddf3c6 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RESET_H_
 #define _LINUX_RESET_H_
 
diff --git a/include/linux/resource.h b/include/linux/resource.h
index 277afdad6589..bdf491cbcab7 100644
--- a/include/linux/resource.h
+++ b/include/linux/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RESOURCE_H
 #define _LINUX_RESOURCE_H
 
diff --git a/include/linux/restart_block.h b/include/linux/restart_block.h
index 19df8422606c..bcfdb918cd81 100644
--- a/include/linux/restart_block.h
+++ b/include/linux/restart_block.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Common syscall restarting data
  */
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index ee9b461af095..fa6ace66fea5 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RING_BUFFER_H
 #define _LINUX_RING_BUFFER_H
 
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 733d3d8181e2..988d176472df 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_RMAP_H
 #define _LINUX_RMAP_H
 /*
diff --git a/include/linux/rndis.h b/include/linux/rndis.h
index 93c0a64aefa6..882587c2b15e 100644
--- a/include/linux/rndis.h
+++ b/include/linux/rndis.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Remote Network Driver Interface Specification (RNDIS)
  * definitions of the magic numbers used by this protocol
diff --git a/include/linux/root_dev.h b/include/linux/root_dev.h
index ed241aad7c17..bab671b0782f 100644
--- a/include/linux/root_dev.h
+++ b/include/linux/root_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ROOT_DEV_H_
 #define _ROOT_DEV_H_
 
diff --git a/include/linux/rpmsg/qcom_smd.h b/include/linux/rpmsg/qcom_smd.h
index f27917e0a101..2e92d7407a85 100644
--- a/include/linux/rpmsg/qcom_smd.h
+++ b/include/linux/rpmsg/qcom_smd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _LINUX_RPMSG_QCOM_SMD_H
 #define _LINUX_RPMSG_QCOM_SMD_H
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index e6d0f9c1cafd..41319a2e409b 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generic RTC interface.
  * This version contains the part of the user interface to the Real Time Clock
@@ -135,6 +136,14 @@ struct rtc_device {
 	/* Some hardware can't support UIE mode */
 	int uie_unsupported;
 
+	/* Number of nsec it takes to set the RTC clock. This influences when
+	 * the set ops are called. An offset:
+	 *   - of 0.5 s will call RTC set for wall clock time 10.0 s at 9.5 s
+	 *   - of 1.5 s will call RTC set for wall clock time 10.0 s at 8.5 s
+	 *   - of -0.5 s will call RTC set for wall clock time 10.0 s at 10.5 s
+	 */
+	long set_offset_nsec;
+
 	bool registered;
 
 	struct nvmem_config *nvmem_config;
@@ -172,7 +181,7 @@ extern void devm_rtc_device_unregister(struct device *dev,
 
 extern int rtc_read_time(struct rtc_device *rtc, struct rtc_time *tm);
 extern int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm);
-extern int rtc_set_ntp_time(struct timespec64 now);
+extern int rtc_set_ntp_time(struct timespec64 now, unsigned long *target_nsec);
 int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm);
 extern int rtc_read_alarm(struct rtc_device *rtc,
 			struct rtc_wkalrm *alrm);
@@ -221,6 +230,39 @@ static inline bool is_leap_year(unsigned int year)
 	return (!(year % 4) && (year % 100)) || !(year % 400);
 }
 
+/* Determine if we can call to driver to set the time. Drivers can only be
+ * called to set a second aligned time value, and the field set_offset_nsec
+ * specifies how far away from the second aligned time to call the driver.
+ *
+ * This also computes 'to_set' which is the time we are trying to set, and has
+ * a zero in tv_nsecs, such that:
+ *    to_set - set_delay_nsec == now +/- FUZZ
+ *
+ */
+static inline bool rtc_tv_nsec_ok(s64 set_offset_nsec,
+				  struct timespec64 *to_set,
+				  const struct timespec64 *now)
+{
+	/* Allowed error in tv_nsec, arbitarily set to 5 jiffies in ns. */
+	const unsigned long TIME_SET_NSEC_FUZZ = TICK_NSEC * 5;
+	struct timespec64 delay = {.tv_sec = 0,
+				   .tv_nsec = set_offset_nsec};
+
+	*to_set = timespec64_add(*now, delay);
+
+	if (to_set->tv_nsec < TIME_SET_NSEC_FUZZ) {
+		to_set->tv_nsec = 0;
+		return true;
+	}
+
+	if (to_set->tv_nsec > NSEC_PER_SEC - TIME_SET_NSEC_FUZZ) {
+		to_set->tv_sec++;
+		to_set->tv_nsec = 0;
+		return true;
+	}
+	return false;
+}
+
 #define rtc_register_device(device) \
 	__rtc_register_device(THIS_MODULE, device)
 
diff --git a/include/linux/rtmutex.h b/include/linux/rtmutex.h
index 53fcbe9de7fd..1b92a28dd672 100644
--- a/include/linux/rtmutex.h
+++ b/include/linux/rtmutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RT Mutexes: blocking mutual exclusion locks with PI support
  *
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index dea59c8eec54..54bcd970bfd3 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_RTNETLINK_H
 #define __LINUX_RTNETLINK_H
 
@@ -67,7 +68,7 @@ static inline bool lockdep_rtnl_is_held(void)
  * @p: The pointer to read, prior to dereferencing
  *
  * Return the value of the specified RCU-protected pointer, but omit
- * both the smp_read_barrier_depends() and the ACCESS_ONCE(), because
+ * both the smp_read_barrier_depends() and the READ_ONCE(), because
  * caller holds RTNL.
  */
 #define rtnl_dereference(p)					\
diff --git a/include/linux/rwlock.h b/include/linux/rwlock.h
index bc2994ed66e1..3dcd617e65ae 100644
--- a/include/linux/rwlock.h
+++ b/include/linux/rwlock.h
@@ -38,6 +38,15 @@ do {								\
  extern int do_raw_write_trylock(rwlock_t *lock);
  extern void do_raw_write_unlock(rwlock_t *lock) __releases(lock);
 #else
+
+#ifndef arch_read_lock_flags
+# define arch_read_lock_flags(lock, flags)	arch_read_lock(lock)
+#endif
+
+#ifndef arch_write_lock_flags
+# define arch_write_lock_flags(lock, flags)	arch_write_lock(lock)
+#endif
+
 # define do_raw_read_lock(rwlock)	do {__acquire(lock); arch_read_lock(&(rwlock)->raw_lock); } while (0)
 # define do_raw_read_lock_flags(lock, flags) \
 		do {__acquire(lock); arch_read_lock_flags(&(lock)->raw_lock, *(flags)); } while (0)
@@ -50,9 +59,6 @@ do {								\
 # define do_raw_write_unlock(rwlock)	do {arch_write_unlock(&(rwlock)->raw_lock); __release(lock); } while (0)
 #endif
 
-#define read_can_lock(rwlock)		arch_read_can_lock(&(rwlock)->raw_lock)
-#define write_can_lock(rwlock)		arch_write_can_lock(&(rwlock)->raw_lock)
-
 /*
  * Define the various rw_lock methods.  Note we define these
  * regardless of whether CONFIG_SMP or CONFIG_PREEMPT are set. The various
diff --git a/include/linux/rwlock_api_smp.h b/include/linux/rwlock_api_smp.h
index 5b9b84b20407..86ebb4bf9c6e 100644
--- a/include/linux/rwlock_api_smp.h
+++ b/include/linux/rwlock_api_smp.h
@@ -211,7 +211,7 @@ static inline void __raw_write_lock(rwlock_t *lock)
 	LOCK_CONTENDED(lock, do_raw_write_trylock, do_raw_write_lock);
 }
 
-#endif /* CONFIG_PREEMPT */
+#endif /* !CONFIG_GENERIC_LOCKBREAK || CONFIG_DEBUG_LOCK_ALLOC */
 
 static inline void __raw_write_unlock(rwlock_t *lock)
 {
diff --git a/include/linux/rwsem-spinlock.h b/include/linux/rwsem-spinlock.h
index e784761a4443..e47568363e5e 100644
--- a/include/linux/rwsem-spinlock.h
+++ b/include/linux/rwsem-spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* rwsem-spinlock.h: fallback C implementation
  *
  * Copyright (c) 2001   David Howells (dhowells@redhat.com).
diff --git a/include/linux/rwsem.h b/include/linux/rwsem.h
index 0ad7318ff299..56707d5ff6ad 100644
--- a/include/linux/rwsem.h
+++ b/include/linux/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* rwsem.h: R/W semaphores, public interface
  *
  * Written by David Howells (dhowells@redhat.com).
@@ -111,6 +112,7 @@ static inline int rwsem_is_contended(struct rw_semaphore *sem)
  * lock for reading
  */
 extern void down_read(struct rw_semaphore *sem);
+extern int __must_check down_read_killable(struct rw_semaphore *sem);
 
 /*
  * trylock for reading -- returns 1 if successful, 0 if contention
diff --git a/include/linux/s3c_adc_battery.h b/include/linux/s3c_adc_battery.h
index 99dadbffdd4f..833871dcf6fd 100644
--- a/include/linux/s3c_adc_battery.h
+++ b/include/linux/s3c_adc_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S3C_ADC_BATTERY_H
 #define _S3C_ADC_BATTERY_H
 
diff --git a/include/linux/sbitmap.h b/include/linux/sbitmap.h
index a1904aadbc45..0dcc60e820de 100644
--- a/include/linux/sbitmap.h
+++ b/include/linux/sbitmap.h
@@ -211,10 +211,14 @@ bool sbitmap_any_bit_set(const struct sbitmap *sb);
  */
 bool sbitmap_any_bit_clear(const struct sbitmap *sb);
 
+#define SB_NR_TO_INDEX(sb, bitnr) ((bitnr) >> (sb)->shift)
+#define SB_NR_TO_BIT(sb, bitnr) ((bitnr) & ((1U << (sb)->shift) - 1U))
+
 typedef bool (*sb_for_each_fn)(struct sbitmap *, unsigned int, void *);
 
 /**
- * sbitmap_for_each_set() - Iterate over each set bit in a &struct sbitmap.
+ * __sbitmap_for_each_set() - Iterate over each set bit in a &struct sbitmap.
+ * @start: Where to start the iteration.
  * @sb: Bitmap to iterate over.
  * @fn: Callback. Should return true to continue or false to break early.
  * @data: Pointer to pass to callback.
@@ -222,35 +226,61 @@ typedef bool (*sb_for_each_fn)(struct sbitmap *, unsigned int, void *);
  * This is inline even though it's non-trivial so that the function calls to the
  * callback will hopefully get optimized away.
  */
-static inline void sbitmap_for_each_set(struct sbitmap *sb, sb_for_each_fn fn,
-					void *data)
+static inline void __sbitmap_for_each_set(struct sbitmap *sb,
+					  unsigned int start,
+					  sb_for_each_fn fn, void *data)
 {
-	unsigned int i;
+	unsigned int index;
+	unsigned int nr;
+	unsigned int scanned = 0;
 
-	for (i = 0; i < sb->map_nr; i++) {
-		struct sbitmap_word *word = &sb->map[i];
-		unsigned int off, nr;
+	if (start >= sb->depth)
+		start = 0;
+	index = SB_NR_TO_INDEX(sb, start);
+	nr = SB_NR_TO_BIT(sb, start);
 
-		if (!word->word)
-			continue;
+	while (scanned < sb->depth) {
+		struct sbitmap_word *word = &sb->map[index];
+		unsigned int depth = min_t(unsigned int, word->depth - nr,
+					   sb->depth - scanned);
 
-		nr = 0;
-		off = i << sb->shift;
+		scanned += depth;
+		if (!word->word)
+			goto next;
+
+		/*
+		 * On the first iteration of the outer loop, we need to add the
+		 * bit offset back to the size of the word for find_next_bit().
+		 * On all other iterations, nr is zero, so this is a noop.
+		 */
+		depth += nr;
 		while (1) {
-			nr = find_next_bit(&word->word, word->depth, nr);
-			if (nr >= word->depth)
+			nr = find_next_bit(&word->word, depth, nr);
+			if (nr >= depth)
 				break;
-
-			if (!fn(sb, off + nr, data))
+			if (!fn(sb, (index << sb->shift) + nr, data))
 				return;
 
 			nr++;
 		}
+next:
+		nr = 0;
+		if (++index >= sb->map_nr)
+			index = 0;
 	}
 }
 
-#define SB_NR_TO_INDEX(sb, bitnr) ((bitnr) >> (sb)->shift)
-#define SB_NR_TO_BIT(sb, bitnr) ((bitnr) & ((1U << (sb)->shift) - 1U))
+/**
+ * sbitmap_for_each_set() - Iterate over each set bit in a &struct sbitmap.
+ * @sb: Bitmap to iterate over.
+ * @fn: Callback. Should return true to continue or false to break early.
+ * @data: Pointer to pass to callback.
+ */
+static inline void sbitmap_for_each_set(struct sbitmap *sb, sb_for_each_fn fn,
+					void *data)
+{
+	__sbitmap_for_each_set(sb, 0, fn, data);
+}
 
 static inline unsigned long *__sbitmap_word(struct sbitmap *sb,
 					    unsigned int bitnr)
diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h
index 4b3286ac60c8..d87dfa41142d 100644
--- a/include/linux/scatterlist.h
+++ b/include/linux/scatterlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCATTERLIST_H
 #define _LINUX_SCATTERLIST_H
 
diff --git a/include/linux/scc.h b/include/linux/scc.h
index c5a004962679..745eabd17c10 100644
--- a/include/linux/scc.h
+++ b/include/linux/scc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
 #ifndef	_SCC_H
 #define	_SCC_H
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 92fb8dd5a9e4..a5dc7c98b0a2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_H
 #define _LINUX_SCHED_H
 
@@ -65,25 +66,23 @@ struct task_group;
  */
 
 /* Used in tsk->state: */
-#define TASK_RUNNING			0
-#define TASK_INTERRUPTIBLE		1
-#define TASK_UNINTERRUPTIBLE		2
-#define __TASK_STOPPED			4
-#define __TASK_TRACED			8
+#define TASK_RUNNING			0x0000
+#define TASK_INTERRUPTIBLE		0x0001
+#define TASK_UNINTERRUPTIBLE		0x0002
+#define __TASK_STOPPED			0x0004
+#define __TASK_TRACED			0x0008
 /* Used in tsk->exit_state: */
-#define EXIT_DEAD			16
-#define EXIT_ZOMBIE			32
+#define EXIT_DEAD			0x0010
+#define EXIT_ZOMBIE			0x0020
 #define EXIT_TRACE			(EXIT_ZOMBIE | EXIT_DEAD)
 /* Used in tsk->state again: */
-#define TASK_DEAD			64
-#define TASK_WAKEKILL			128
-#define TASK_WAKING			256
-#define TASK_PARKED			512
-#define TASK_NOLOAD			1024
-#define TASK_NEW			2048
-#define TASK_STATE_MAX			4096
-
-#define TASK_STATE_TO_CHAR_STR		"RSDTtXZxKWPNn"
+#define TASK_PARKED			0x0040
+#define TASK_DEAD			0x0080
+#define TASK_WAKEKILL			0x0100
+#define TASK_WAKING			0x0200
+#define TASK_NOLOAD			0x0400
+#define TASK_NEW			0x0800
+#define TASK_STATE_MAX			0x1000
 
 /* Convenience macros for the sake of set_current_state: */
 #define TASK_KILLABLE			(TASK_WAKEKILL | TASK_UNINTERRUPTIBLE)
@@ -99,7 +98,8 @@ struct task_group;
 /* get_task_state(): */
 #define TASK_REPORT			(TASK_RUNNING | TASK_INTERRUPTIBLE | \
 					 TASK_UNINTERRUPTIBLE | __TASK_STOPPED | \
-					 __TASK_TRACED | EXIT_ZOMBIE | EXIT_DEAD)
+					 __TASK_TRACED | EXIT_DEAD | EXIT_ZOMBIE | \
+					 TASK_PARKED)
 
 #define task_is_traced(task)		((task->state & __TASK_TRACED) != 0)
 
@@ -166,8 +166,6 @@ struct task_group;
 /* Task command name length: */
 #define TASK_COMM_LEN			16
 
-extern cpumask_var_t			cpu_isolated_map;
-
 extern void scheduler_tick(void);
 
 #define	MAX_SCHEDULE_TIMEOUT		LONG_MAX
@@ -332,9 +330,11 @@ struct load_weight {
 struct sched_avg {
 	u64				last_update_time;
 	u64				load_sum;
+	u64				runnable_load_sum;
 	u32				util_sum;
 	u32				period_contrib;
 	unsigned long			load_avg;
+	unsigned long			runnable_load_avg;
 	unsigned long			util_avg;
 };
 
@@ -377,6 +377,7 @@ struct sched_statistics {
 struct sched_entity {
 	/* For load-balancing: */
 	struct load_weight		load;
+	unsigned long			runnable_weight;
 	struct rb_node			run_node;
 	struct list_head		group_node;
 	unsigned int			on_rq;
@@ -472,10 +473,10 @@ struct sched_dl_entity {
 	 * conditions between the inactive timer handler and the wakeup
 	 * code.
 	 */
-	int				dl_throttled;
-	int				dl_boosted;
-	int				dl_yielded;
-	int				dl_non_contending;
+	int				dl_throttled      : 1;
+	int				dl_boosted        : 1;
+	int				dl_yielded        : 1;
+	int				dl_non_contending : 1;
 
 	/*
 	 * Bandwidth enforcement timer. Each -deadline task has its
@@ -1243,17 +1244,34 @@ static inline pid_t task_pgrp_nr(struct task_struct *tsk)
 	return task_pgrp_nr_ns(tsk, &init_pid_ns);
 }
 
-static inline char task_state_to_char(struct task_struct *task)
+#define TASK_REPORT_IDLE	(TASK_REPORT + 1)
+#define TASK_REPORT_MAX		(TASK_REPORT_IDLE << 1)
+
+static inline unsigned int task_state_index(struct task_struct *tsk)
 {
-	const char stat_nam[] = TASK_STATE_TO_CHAR_STR;
-	unsigned long state = task->state;
+	unsigned int tsk_state = READ_ONCE(tsk->state);
+	unsigned int state = (tsk_state | tsk->exit_state) & TASK_REPORT;
 
-	state = state ? __ffs(state) + 1 : 0;
+	BUILD_BUG_ON_NOT_POWER_OF_2(TASK_REPORT_MAX);
 
-	/* Make sure the string lines up properly with the number of task states: */
-	BUILD_BUG_ON(sizeof(TASK_STATE_TO_CHAR_STR)-1 != ilog2(TASK_STATE_MAX)+1);
+	if (tsk_state == TASK_IDLE)
+		state = TASK_REPORT_IDLE;
 
-	return state < sizeof(stat_nam) - 1 ? stat_nam[state] : '?';
+	return fls(state);
+}
+
+static inline char task_index_to_char(unsigned int state)
+{
+	static const char state_char[] = "RSDTtXZPI";
+
+	BUILD_BUG_ON(1 + ilog2(TASK_REPORT_MAX) != sizeof(state_char) - 1);
+
+	return state_char[state];
+}
+
+static inline char task_state_to_char(struct task_struct *tsk)
+{
+	return task_index_to_char(task_state_index(tsk));
 }
 
 /**
diff --git a/include/linux/sched/autogroup.h b/include/linux/sched/autogroup.h
index 55cd496df884..704391cc1d20 100644
--- a/include/linux/sched/autogroup.h
+++ b/include/linux/sched/autogroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_AUTOGROUP_H
 #define _LINUX_SCHED_AUTOGROUP_H
 
diff --git a/include/linux/sched/clock.h b/include/linux/sched/clock.h
index a55600ffdf4b..867d588314e0 100644
--- a/include/linux/sched/clock.h
+++ b/include/linux/sched/clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_CLOCK_H
 #define _LINUX_SCHED_CLOCK_H
 
diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
index 98ae0d05aa32..9c8847395b5e 100644
--- a/include/linux/sched/coredump.h
+++ b/include/linux/sched/coredump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_COREDUMP_H
 #define _LINUX_SCHED_COREDUMP_H
 
diff --git a/include/linux/sched/cpufreq.h b/include/linux/sched/cpufreq.h
index d2be2ccbb372..d1ad3d825561 100644
--- a/include/linux/sched/cpufreq.h
+++ b/include/linux/sched/cpufreq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_CPUFREQ_H
 #define _LINUX_SCHED_CPUFREQ_H
 
diff --git a/include/linux/sched/cputime.h b/include/linux/sched/cputime.h
index 4c5b9735c1ae..d0677f6739f6 100644
--- a/include/linux/sched/cputime.h
+++ b/include/linux/sched/cputime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_CPUTIME_H
 #define _LINUX_SCHED_CPUTIME_H
 
diff --git a/include/linux/sched/deadline.h b/include/linux/sched/deadline.h
index 975be862e083..a5bc8728ead7 100644
--- a/include/linux/sched/deadline.h
+++ b/include/linux/sched/deadline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_DEADLINE_H
 #define _LINUX_SCHED_DEADLINE_H
 
diff --git a/include/linux/sched/debug.h b/include/linux/sched/debug.h
index 5d58d49e9f87..95fb9e025247 100644
--- a/include/linux/sched/debug.h
+++ b/include/linux/sched/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_DEBUG_H
 #define _LINUX_SCHED_DEBUG_H
 
diff --git a/include/linux/sched/hotplug.h b/include/linux/sched/hotplug.h
index 752ac7e628d7..9a62ffdd296f 100644
--- a/include/linux/sched/hotplug.h
+++ b/include/linux/sched/hotplug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_HOTPLUG_H
 #define _LINUX_SCHED_HOTPLUG_H
 
diff --git a/include/linux/sched/idle.h b/include/linux/sched/idle.h
index 5ca63ebad6b4..22873d276be6 100644
--- a/include/linux/sched/idle.h
+++ b/include/linux/sched/idle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_IDLE_H
 #define _LINUX_SCHED_IDLE_H
 
diff --git a/include/linux/sched/init.h b/include/linux/sched/init.h
index 127215045285..03542575fd33 100644
--- a/include/linux/sched/init.h
+++ b/include/linux/sched/init.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_INIT_H
 #define _LINUX_SCHED_INIT_H
 
diff --git a/include/linux/sched/isolation.h b/include/linux/sched/isolation.h
new file mode 100644
index 000000000000..d849431c8060
--- /dev/null
+++ b/include/linux/sched/isolation.h
@@ -0,0 +1,51 @@
+#ifndef _LINUX_SCHED_ISOLATION_H
+#define _LINUX_SCHED_ISOLATION_H
+
+#include <linux/cpumask.h>
+#include <linux/init.h>
+#include <linux/tick.h>
+
+enum hk_flags {
+	HK_FLAG_TIMER		= 1,
+	HK_FLAG_RCU		= (1 << 1),
+	HK_FLAG_MISC		= (1 << 2),
+	HK_FLAG_SCHED		= (1 << 3),
+	HK_FLAG_TICK		= (1 << 4),
+	HK_FLAG_DOMAIN		= (1 << 5),
+};
+
+#ifdef CONFIG_CPU_ISOLATION
+DECLARE_STATIC_KEY_FALSE(housekeeping_overriden);
+extern int housekeeping_any_cpu(enum hk_flags flags);
+extern const struct cpumask *housekeeping_cpumask(enum hk_flags flags);
+extern void housekeeping_affine(struct task_struct *t, enum hk_flags flags);
+extern bool housekeeping_test_cpu(int cpu, enum hk_flags flags);
+extern void __init housekeeping_init(void);
+
+#else
+
+static inline int housekeeping_any_cpu(enum hk_flags flags)
+{
+	return smp_processor_id();
+}
+
+static inline const struct cpumask *housekeeping_cpumask(enum hk_flags flags)
+{
+	return cpu_possible_mask;
+}
+
+static inline void housekeeping_affine(struct task_struct *t,
+				       enum hk_flags flags) { }
+static inline void housekeeping_init(void) { }
+#endif /* CONFIG_CPU_ISOLATION */
+
+static inline bool housekeeping_cpu(int cpu, enum hk_flags flags)
+{
+#ifdef CONFIG_CPU_ISOLATION
+	if (static_branch_unlikely(&housekeeping_overriden))
+		return housekeeping_test_cpu(cpu, flags);
+#endif
+	return true;
+}
+
+#endif /* _LINUX_SCHED_ISOLATION_H */
diff --git a/include/linux/sched/jobctl.h b/include/linux/sched/jobctl.h
index 016afa0fb3bb..98228bd48aee 100644
--- a/include/linux/sched/jobctl.h
+++ b/include/linux/sched/jobctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_JOBCTL_H
 #define _LINUX_SCHED_JOBCTL_H
 
diff --git a/include/linux/sched/loadavg.h b/include/linux/sched/loadavg.h
index 4264bc6b2c27..80bc84ba5d2a 100644
--- a/include/linux/sched/loadavg.h
+++ b/include/linux/sched/loadavg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_LOADAVG_H
 #define _LINUX_SCHED_LOADAVG_H
 
diff --git a/include/linux/sched/mm.h b/include/linux/sched/mm.h
index 3a19c253bdb1..3d49b91b674d 100644
--- a/include/linux/sched/mm.h
+++ b/include/linux/sched/mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_MM_H
 #define _LINUX_SCHED_MM_H
 
@@ -84,6 +85,12 @@ static inline bool mmget_not_zero(struct mm_struct *mm)
 
 /* mmput gets rid of the mappings and all user-space */
 extern void mmput(struct mm_struct *);
+#ifdef CONFIG_MMU
+/* same as above but performs the slow path from the async context. Can
+ * be called from the atomic context as well
+ */
+void mmput_async(struct mm_struct *);
+#endif
 
 /* Grab a reference to a task's mm, if it is not already going away */
 extern struct mm_struct *get_task_mm(struct task_struct *task);
@@ -205,4 +212,20 @@ static inline void memalloc_noreclaim_restore(unsigned int flags)
 	current->flags = (current->flags & ~PF_MEMALLOC) | flags;
 }
 
+#ifdef CONFIG_MEMBARRIER
+enum {
+	MEMBARRIER_STATE_PRIVATE_EXPEDITED_READY	= (1U << 0),
+	MEMBARRIER_STATE_SWITCH_MM			= (1U << 1),
+};
+
+static inline void membarrier_execve(struct task_struct *t)
+{
+	atomic_set(&t->mm->membarrier_state, 0);
+}
+#else
+static inline void membarrier_execve(struct task_struct *t)
+{
+}
+#endif
+
 #endif /* _LINUX_SCHED_MM_H */
diff --git a/include/linux/sched/nohz.h b/include/linux/sched/nohz.h
index 028d17b918a7..3d3a97d9399d 100644
--- a/include/linux/sched/nohz.h
+++ b/include/linux/sched/nohz.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_NOHZ_H
 #define _LINUX_SCHED_NOHZ_H
 
diff --git a/include/linux/sched/numa_balancing.h b/include/linux/sched/numa_balancing.h
index 35d5fc77b4be..e7dd04a84ba8 100644
--- a/include/linux/sched/numa_balancing.h
+++ b/include/linux/sched/numa_balancing.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_NUMA_BALANCING_H
 #define _LINUX_SCHED_NUMA_BALANCING_H
 
diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
index 2cc450f6ec54..7d64feafc408 100644
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_PRIO_H
 #define _LINUX_SCHED_PRIO_H
 
diff --git a/include/linux/sched/rt.h b/include/linux/sched/rt.h
index f93329aba31a..e5af028c08b4 100644
--- a/include/linux/sched/rt.h
+++ b/include/linux/sched/rt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_RT_H
 #define _LINUX_SCHED_RT_H
 
@@ -17,6 +18,17 @@ static inline int rt_task(struct task_struct *p)
 	return rt_prio(p->prio);
 }
 
+static inline bool task_is_realtime(struct task_struct *tsk)
+{
+	int policy = tsk->policy;
+
+	if (policy == SCHED_FIFO || policy == SCHED_RR)
+		return true;
+	if (policy == SCHED_DEADLINE)
+		return true;
+	return false;
+}
+
 #ifdef CONFIG_RT_MUTEXES
 /*
  * Must hold either p->pi_lock or task_rq(p)->lock.
diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h
index 2a0dd40b15db..0aa4548fb492 100644
--- a/include/linux/sched/signal.h
+++ b/include/linux/sched/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_SIGNAL_H
 #define _LINUX_SCHED_SIGNAL_H
 
diff --git a/include/linux/sched/stat.h b/include/linux/sched/stat.h
index 141b74c53fad..04f1321d14c4 100644
--- a/include/linux/sched/stat.h
+++ b/include/linux/sched/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_STAT_H
 #define _LINUX_SCHED_STAT_H
 
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 0f5ecd4d298e..1c1a1512ec55 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_SYSCTL_H
 #define _LINUX_SCHED_SYSCTL_H
 
@@ -37,9 +38,9 @@ extern unsigned int sysctl_numa_balancing_scan_period_max;
 extern unsigned int sysctl_numa_balancing_scan_size;
 
 #ifdef CONFIG_SCHED_DEBUG
-extern unsigned int sysctl_sched_migration_cost;
-extern unsigned int sysctl_sched_nr_migrate;
-extern unsigned int sysctl_sched_time_avg;
+extern __read_mostly unsigned int sysctl_sched_migration_cost;
+extern __read_mostly unsigned int sysctl_sched_nr_migrate;
+extern __read_mostly unsigned int sysctl_sched_time_avg;
 
 int sched_proc_update_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *length,
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 79a2a744648d..05b8650f06f5 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_TASK_H
 #define _LINUX_SCHED_TASK_H
 
diff --git a/include/linux/sched/task_stack.h b/include/linux/sched/task_stack.h
index df6ea6665b31..cb4828aaa34f 100644
--- a/include/linux/sched/task_stack.h
+++ b/include/linux/sched/task_stack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_TASK_STACK_H
 #define _LINUX_SCHED_TASK_STACK_H
 
diff --git a/include/linux/sched/topology.h b/include/linux/sched/topology.h
index d7b6dab956ec..cf257c2e728d 100644
--- a/include/linux/sched/topology.h
+++ b/include/linux/sched/topology.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_TOPOLOGY_H
 #define _LINUX_SCHED_TOPOLOGY_H
 
@@ -71,14 +72,6 @@ struct sched_domain_shared {
 	atomic_t	ref;
 	atomic_t	nr_busy_cpus;
 	int		has_idle_cores;
-
-	/*
-	 * Some variables from the most recent sd_lb_stats for this domain,
-	 * used by wake_affine().
-	 */
-	unsigned long	nr_running;
-	unsigned long	load;
-	unsigned long	capacity;
 };
 
 struct sched_domain {
diff --git a/include/linux/sched/user.h b/include/linux/sched/user.h
index 3c07e4135127..0dcf4e480ef7 100644
--- a/include/linux/sched/user.h
+++ b/include/linux/sched/user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_USER_H
 #define _LINUX_SCHED_USER_H
 
diff --git a/include/linux/sched/wake_q.h b/include/linux/sched/wake_q.h
index d03d8a9047dc..10b19a192b2d 100644
--- a/include/linux/sched/wake_q.h
+++ b/include/linux/sched/wake_q.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_WAKE_Q_H
 #define _LINUX_SCHED_WAKE_Q_H
 
diff --git a/include/linux/sched/xacct.h b/include/linux/sched/xacct.h
index a28156a0d34a..c078f0a94cec 100644
--- a/include/linux/sched/xacct.h
+++ b/include/linux/sched/xacct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SCHED_XACCT_H
 #define _LINUX_SCHED_XACCT_H
 
diff --git a/include/linux/screen_info.h b/include/linux/screen_info.h
index f0f8bad54be9..eab7081392d5 100644
--- a/include/linux/screen_info.h
+++ b/include/linux/screen_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCREEN_INFO_H
 #define _SCREEN_INFO_H
 
diff --git a/include/linux/sctp.h b/include/linux/sctp.h
index 82b171e1aa0b..da803dfc7a39 100644
--- a/include/linux/sctp.h
+++ b/include/linux/sctp.h
@@ -231,7 +231,7 @@ struct sctp_datahdr {
 	__be32 tsn;
 	__be16 stream;
 	__be16 ssn;
-	__be32 ppid;
+	__u32 ppid;
 	__u8  payload[0];
 };
 
@@ -716,28 +716,28 @@ struct sctp_reconf_chunk {
 
 struct sctp_strreset_outreq {
 	struct sctp_paramhdr param_hdr;
-	__u32 request_seq;
-	__u32 response_seq;
-	__u32 send_reset_at_tsn;
-	__u16 list_of_streams[0];
+	__be32 request_seq;
+	__be32 response_seq;
+	__be32 send_reset_at_tsn;
+	__be16 list_of_streams[0];
 };
 
 struct sctp_strreset_inreq {
 	struct sctp_paramhdr param_hdr;
-	__u32 request_seq;
-	__u16 list_of_streams[0];
+	__be32 request_seq;
+	__be16 list_of_streams[0];
 };
 
 struct sctp_strreset_tsnreq {
 	struct sctp_paramhdr param_hdr;
-	__u32 request_seq;
+	__be32 request_seq;
 };
 
 struct sctp_strreset_addstrm {
 	struct sctp_paramhdr param_hdr;
-	__u32 request_seq;
-	__u16 number_of_streams;
-	__u16 reserved;
+	__be32 request_seq;
+	__be16 number_of_streams;
+	__be16 reserved;
 };
 
 enum {
@@ -752,16 +752,16 @@ enum {
 
 struct sctp_strreset_resp {
 	struct sctp_paramhdr param_hdr;
-	__u32 response_seq;
-	__u32 result;
+	__be32 response_seq;
+	__be32 result;
 };
 
 struct sctp_strreset_resptsn {
 	struct sctp_paramhdr param_hdr;
-	__u32 response_seq;
-	__u32 result;
-	__u32 senders_next_tsn;
-	__u32 receivers_next_tsn;
+	__be32 response_seq;
+	__be32 result;
+	__be32 senders_next_tsn;
+	__be32 receivers_next_tsn;
 };
 
 #endif /* __LINUX_SCTP_H__ */
diff --git a/include/linux/scx200.h b/include/linux/scx200.h
index de466e11e271..652ec1a45f7c 100644
--- a/include/linux/scx200.h
+++ b/include/linux/scx200.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/include/linux/scx200.h
 
    Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com>
diff --git a/include/linux/scx200_gpio.h b/include/linux/scx200_gpio.h
index ece4e553e9ac..6386ddbb6b70 100644
--- a/include/linux/scx200_gpio.h
+++ b/include/linux/scx200_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 u32 scx200_gpio_configure(unsigned index, u32 set, u32 clear);
 
 extern unsigned scx200_gpio_base;
diff --git a/include/linux/sdb.h b/include/linux/sdb.h
index fbb76a46c8a5..a2404a2bbd10 100644
--- a/include/linux/sdb.h
+++ b/include/linux/sdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is the official version 1.1 of sdb.h
  */
diff --git a/include/linux/seccomp.h b/include/linux/seccomp.h
index ecc296c137cd..10f25f7e4304 100644
--- a/include/linux/seccomp.h
+++ b/include/linux/seccomp.h
@@ -1,9 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SECCOMP_H
 #define _LINUX_SECCOMP_H
 
 #include <uapi/linux/seccomp.h>
 
-#define SECCOMP_FILTER_FLAG_MASK	(SECCOMP_FILTER_FLAG_TSYNC)
+#define SECCOMP_FILTER_FLAG_MASK	(SECCOMP_FILTER_FLAG_TSYNC | \
+					 SECCOMP_FILTER_FLAG_LOG)
 
 #ifdef CONFIG_SECCOMP
 
diff --git a/include/linux/securebits.h b/include/linux/securebits.h
index da1b33b33af7..656528673983 100644
--- a/include/linux/securebits.h
+++ b/include/linux/securebits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SECUREBITS_H
 #define _LINUX_SECUREBITS_H 1
 
diff --git a/include/linux/seg6.h b/include/linux/seg6.h
index 7a66d2b4c5a6..369066a33ab9 100644
--- a/include/linux/seg6.h
+++ b/include/linux/seg6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_H
 #define _LINUX_SEG6_H
 
diff --git a/include/linux/seg6_genl.h b/include/linux/seg6_genl.h
index d6c3fb4f3734..2f25a3cd7cb3 100644
--- a/include/linux/seg6_genl.h
+++ b/include/linux/seg6_genl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_GENL_H
 #define _LINUX_SEG6_GENL_H
 
diff --git a/include/linux/seg6_hmac.h b/include/linux/seg6_hmac.h
index da437ebdc6cd..16e59595e870 100644
--- a/include/linux/seg6_hmac.h
+++ b/include/linux/seg6_hmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_HMAC_H
 #define _LINUX_SEG6_HMAC_H
 
diff --git a/include/linux/seg6_iptunnel.h b/include/linux/seg6_iptunnel.h
index 5377cf6a5a02..d07df7fc9dee 100644
--- a/include/linux/seg6_iptunnel.h
+++ b/include/linux/seg6_iptunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEG6_IPTUNNEL_H
 #define _LINUX_SEG6_IPTUNNEL_H
 
diff --git a/include/linux/selection.h b/include/linux/selection.h
index 8e4624efdb6f..5b278ce99d8d 100644
--- a/include/linux/selection.h
+++ b/include/linux/selection.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * selection.h
  *
diff --git a/include/linux/sem.h b/include/linux/sem.h
index de2deb8676bd..9badd322dcee 100644
--- a/include/linux/sem.h
+++ b/include/linux/sem.h
@@ -1,9 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEM_H
 #define _LINUX_SEM_H
 
 #include <linux/atomic.h>
 #include <linux/rcupdate.h>
 #include <linux/cache.h>
+#include <linux/time64.h>
 #include <uapi/linux/sem.h>
 
 struct task_struct;
@@ -30,7 +32,7 @@ struct sem {
 /* One sem_array data structure for each set of semaphores in the system. */
 struct sem_array {
 	struct kern_ipc_perm	sem_perm;	/* permissions .. see ipc.h */
-	time_t			sem_ctime;	/* create/last semctl() time */
+	time64_t		sem_ctime;	/* create/last semctl() time */
 	struct list_head	pending_alter;	/* pending operations */
 						/* that alter the array */
 	struct list_head	pending_const;	/* pending complex operations */
diff --git a/include/linux/seq_buf.h b/include/linux/seq_buf.h
index fb7eb9ccb1cd..aa5deb041c25 100644
--- a/include/linux/seq_buf.h
+++ b/include/linux/seq_buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEQ_BUF_H
 #define _LINUX_SEQ_BUF_H
 
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index e305b66a9fb9..09c6e28746f9 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SEQ_FILE_H
 #define _LINUX_SEQ_FILE_H
 
diff --git a/include/linux/seq_file_net.h b/include/linux/seq_file_net.h
index 32c89bbe24a2..43ccd84127b6 100644
--- a/include/linux/seq_file_net.h
+++ b/include/linux/seq_file_net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SEQ_FILE_NET_H__
 #define __SEQ_FILE_NET_H__
 
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index ead97654c4e9..f189a8a3bbb8 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SEQLOCK_H
 #define __LINUX_SEQLOCK_H
 /*
diff --git a/include/linux/serial_bcm63xx.h b/include/linux/serial_bcm63xx.h
index 570e964dc899..b5e48ef89736 100644
--- a/include/linux/serial_bcm63xx.h
+++ b/include/linux/serial_bcm63xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SERIAL_BCM63XX_H
 #define _LINUX_SERIAL_BCM63XX_H
 
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 5553e04e59c9..37b044e78333 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -501,4 +501,9 @@ static inline int uart_handle_break(struct uart_port *port)
 					 (cflag) & CRTSCTS || \
 					 !((cflag) & CLOCAL))
 
+/*
+ * Common device tree parsing helpers
+ */
+void of_get_rs485_mode(struct device_node *np, struct serial_rs485 *rs485conf);
+
 #endif /* LINUX_SERIAL_CORE_H */
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index e598eaef3962..c0e795d95477 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SERIAL_SCI_H
 #define __LINUX_SERIAL_SCI_H
 
diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h
index 645896b81244..7bed5be886c6 100644
--- a/include/linux/sh_clk.h
+++ b/include/linux/sh_clk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_CLOCK_H
 #define __SH_CLOCK_H
 
diff --git a/include/linux/sh_eth.h b/include/linux/sh_eth.h
index f2e27e078362..ff3642d267f7 100644
--- a/include/linux/sh_eth.h
+++ b/include/linux/sh_eth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_ETH_H__
 #define __ASM_SH_ETH_H__
 
diff --git a/include/linux/sh_intc.h b/include/linux/sh_intc.h
index 32383285da68..c255273b0281 100644
--- a/include/linux/sh_intc.h
+++ b/include/linux/sh_intc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_INTC_H
 #define __SH_INTC_H
 
diff --git a/include/linux/sh_timer.h b/include/linux/sh_timer.h
index 64638b058076..74fd5140bb7a 100644
--- a/include/linux/sh_timer.h
+++ b/include/linux/sh_timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SH_TIMER_H__
 #define __SH_TIMER_H__
 
diff --git a/include/linux/shm.h b/include/linux/shm.h
index 21a5e6c43385..2bbafacfbfc9 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SHM_H_
 #define _LINUX_SHM_H_
 
@@ -12,9 +13,9 @@ struct shmid_kernel /* private to the kernel */
 	struct file		*shm_file;
 	unsigned long		shm_nattch;
 	unsigned long		shm_segsz;
-	time_t			shm_atim;
-	time_t			shm_dtim;
-	time_t			shm_ctim;
+	time64_t		shm_atim;
+	time64_t		shm_dtim;
+	time64_t		shm_ctim;
 	pid_t			shm_cprid;
 	pid_t			shm_lprid;
 	struct user_struct	*mlock_user;
diff --git a/include/linux/shmem_fs.h b/include/linux/shmem_fs.h
index b6c3540e07bc..ed91ce57c428 100644
--- a/include/linux/shmem_fs.h
+++ b/include/linux/shmem_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SHMEM_FS_H
 #define __SHMEM_FS_H
 
diff --git a/include/linux/shrinker.h b/include/linux/shrinker.h
index 51d189615bda..388ff2936a87 100644
--- a/include/linux/shrinker.h
+++ b/include/linux/shrinker.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SHRINKER_H
 #define _LINUX_SHRINKER_H
 
diff --git a/include/linux/signal.h b/include/linux/signal.h
index 38564e3e54c7..042968dd98f0 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SIGNAL_H
 #define _LINUX_SIGNAL_H
 
diff --git a/include/linux/signal_types.h b/include/linux/signal_types.h
index 16d862a3d8f3..222ae696000b 100644
--- a/include/linux/signal_types.h
+++ b/include/linux/signal_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SIGNAL_TYPES_H
 #define _LINUX_SIGNAL_TYPES_H
 
diff --git a/include/linux/signalfd.h b/include/linux/signalfd.h
index 4985048640a7..9a47c380bda8 100644
--- a/include/linux/signalfd.h
+++ b/include/linux/signalfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/signalfd.h
  *
diff --git a/include/linux/sirfsoc_dma.h b/include/linux/sirfsoc_dma.h
index 29d959333d81..50161b6afb61 100644
--- a/include/linux/sirfsoc_dma.h
+++ b/include/linux/sirfsoc_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SIRFSOC_DMA_H_
 #define _SIRFSOC_DMA_H_
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 72299ef00061..d448a4804aea 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3770,6 +3770,13 @@ static inline void nf_reset_trace(struct sk_buff *skb)
 #endif
 }
 
+static inline void ipvs_reset(struct sk_buff *skb)
+{
+#if IS_ENABLED(CONFIG_IP_VS)
+	skb->ipvs_property = 0;
+#endif
+}
+
 /* Note: This doesn't put any conntrack and bridge info in dst. */
 static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src,
 			     bool copy)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 41473df6dfb0..af5aa65c7c18 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Written by Mark Hemment, 1996 (markhe@nextd.demon.co.uk).
  *
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index 4ad2c5a26399..8f7d2b1656d2 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SLAB_DEF_H
 #define	_LINUX_SLAB_DEF_H
 
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 0783b622311e..39fa09bcde23 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SLUB_DEF_H
 #define _LINUX_SLUB_DEF_H
 
diff --git a/include/linux/smc911x.h b/include/linux/smc911x.h
index 521f37143fae..8cace8189e74 100644
--- a/include/linux/smc911x.h
+++ b/include/linux/smc911x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SMC911X_H__
 #define __SMC911X_H__
 
diff --git a/include/linux/smc91x.h b/include/linux/smc91x.h
index 129bc674dcf5..f3b195fa78b9 100644
--- a/include/linux/smc91x.h
+++ b/include/linux/smc91x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SMC91X_H__
 #define __SMC91X_H__
 
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 98b1fe027fc9..9fb239e12b82 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SMP_H
 #define __LINUX_SMP_H
 
diff --git a/include/linux/smpboot.h b/include/linux/smpboot.h
index 12910cf19869..c174844cf663 100644
--- a/include/linux/smpboot.h
+++ b/include/linux/smpboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SMPBOOT_H
 #define _LINUX_SMPBOOT_H
 
@@ -55,7 +56,7 @@ smpboot_register_percpu_thread(struct smp_hotplug_thread *plug_thread)
 }
 
 void smpboot_unregister_percpu_thread(struct smp_hotplug_thread *plug_thread);
-int smpboot_update_cpumask_percpu_thread(struct smp_hotplug_thread *plug_thread,
-					 const struct cpumask *);
+void smpboot_update_cpumask_percpu_thread(struct smp_hotplug_thread *plug_thread,
+					  const struct cpumask *);
 
 #endif
diff --git a/include/linux/smscphy.h b/include/linux/smscphy.h
index f4bf16e16e16..1a136271ba6a 100644
--- a/include/linux/smscphy.h
+++ b/include/linux/smscphy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SMSCPHY_H__
 #define __LINUX_SMSCPHY_H__
 
diff --git a/include/linux/soc/brcmstb/brcmstb.h b/include/linux/soc/brcmstb/brcmstb.h
index 337ce414e898..12e548938bbb 100644
--- a/include/linux/soc/brcmstb/brcmstb.h
+++ b/include/linux/soc/brcmstb/brcmstb.h
@@ -1,10 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BRCMSTB_SOC_H
 #define __BRCMSTB_SOC_H
 
+static inline u32 BRCM_ID(u32 reg)
+{
+	return reg >> 28 ? reg >> 16 : reg >> 8;
+}
+
+static inline u32 BRCM_REV(u32 reg)
+{
+	return reg & 0xff;
+}
+
 /*
  * Bus Interface Unit control register setup, must happen early during boot,
  * before SMP is brought up, called by machine entry point.
  */
 void brcmstb_biuctrl_init(void);
 
+/*
+ * Helper functions for getting family or product id from the
+ * SoC driver.
+ */
+u32 brcmstb_get_family_id(void);
+u32 brcmstb_get_product_id(void);
+
 #endif /* __BRCMSTB_SOC_H */
diff --git a/include/linux/soc/dove/pmu.h b/include/linux/soc/dove/pmu.h
index 765386972b55..1955c01deec5 100644
--- a/include/linux/soc/dove/pmu.h
+++ b/include/linux/soc/dove/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SOC_DOVE_PMU_H
 #define LINUX_SOC_DOVE_PMU_H
 
diff --git a/include/linux/soc/mediatek/infracfg.h b/include/linux/soc/mediatek/infracfg.h
index a0182ec2a621..e8d9f0d52933 100644
--- a/include/linux/soc/mediatek/infracfg.h
+++ b/include/linux/soc/mediatek/infracfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOC_MEDIATEK_INFRACFG_H
 #define __SOC_MEDIATEK_INFRACFG_H
 
diff --git a/include/linux/soc/qcom/mdt_loader.h b/include/linux/soc/qcom/mdt_loader.h
index f423001db3a9..bd8e0864b059 100644
--- a/include/linux/soc/qcom/mdt_loader.h
+++ b/include/linux/soc/qcom/mdt_loader.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_MDT_LOADER_H__
 #define __QCOM_MDT_LOADER_H__
 
diff --git a/include/linux/soc/qcom/smd-rpm.h b/include/linux/soc/qcom/smd-rpm.h
index 2a53dcaeeeed..4eff6e68600d 100644
--- a/include/linux/soc/qcom/smd-rpm.h
+++ b/include/linux/soc/qcom/smd-rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_SMD_RPM_H__
 #define __QCOM_SMD_RPM_H__
 
diff --git a/include/linux/soc/qcom/smem.h b/include/linux/soc/qcom/smem.h
index 785e196ee2ca..c1657ed27b30 100644
--- a/include/linux/soc/qcom/smem.h
+++ b/include/linux/soc/qcom/smem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_SMEM_H__
 #define __QCOM_SMEM_H__
 
diff --git a/include/linux/soc/qcom/smem_state.h b/include/linux/soc/qcom/smem_state.h
index b8478ee7a71f..63ad8cddad14 100644
--- a/include/linux/soc/qcom/smem_state.h
+++ b/include/linux/soc/qcom/smem_state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QCOM_SMEM_STATE__
 #define __QCOM_SMEM_STATE__
 
diff --git a/include/linux/soc/qcom/wcnss_ctrl.h b/include/linux/soc/qcom/wcnss_ctrl.h
index a4dd4d7c711d..bbeb6b9c0221 100644
--- a/include/linux/soc/qcom/wcnss_ctrl.h
+++ b/include/linux/soc/qcom/wcnss_ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WCNSS_CTRL_H__
 #define __WCNSS_CTRL_H__
 
diff --git a/include/linux/soc/renesas/rcar-rst.h b/include/linux/soc/renesas/rcar-rst.h
index 2c231f2280a6..7899a5b8c247 100644
--- a/include/linux/soc/renesas/rcar-rst.h
+++ b/include/linux/soc/renesas/rcar-rst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SOC_RENESAS_RCAR_RST_H__
 #define __LINUX_SOC_RENESAS_RCAR_RST_H__
 
diff --git a/include/linux/soc/renesas/rcar-sysc.h b/include/linux/soc/renesas/rcar-sysc.h
index 7b8b280c181b..8a6086d2e9c3 100644
--- a/include/linux/soc/renesas/rcar-sysc.h
+++ b/include/linux/soc/renesas/rcar-sysc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SOC_RENESAS_RCAR_SYSC_H__
 #define __LINUX_SOC_RENESAS_RCAR_SYSC_H__
 
diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index a2f8109bb215..15fe980a27ea 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOCK_DIAG_H__
 #define __SOCK_DIAG_H__
 
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 8ad963cdc88c..9286a5a8c60c 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SOCKET_H
 #define _LINUX_SOCKET_H
 
diff --git a/include/linux/sonet.h b/include/linux/sonet.h
index 680f9a31df25..2b802b6d12ad 100644
--- a/include/linux/sonet.h
+++ b/include/linux/sonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sonet.h - SONET/SHD physical layer control */
 #ifndef LINUX_SONET_H
 #define LINUX_SONET_H
diff --git a/include/linux/sony-laptop.h b/include/linux/sony-laptop.h
index e2e036d94e4a..1a4b77317fa1 100644
--- a/include/linux/sony-laptop.h
+++ b/include/linux/sony-laptop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SONYLAPTOP_H_
 #define _SONYLAPTOP_H_
 
diff --git a/include/linux/sort.h b/include/linux/sort.h
index d534da2b5575..2b99a5dd073d 100644
--- a/include/linux/sort.h
+++ b/include/linux/sort.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SORT_H
 #define _LINUX_SORT_H
 
diff --git a/include/linux/sound.h b/include/linux/sound.h
index 73ded040f1d7..3c6d393c7f29 100644
--- a/include/linux/sound.h
+++ b/include/linux/sound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SOUND_H
 #define _LINUX_SOUND_H
 
diff --git a/include/linux/spi/ad7877.h b/include/linux/spi/ad7877.h
index cdbed816f25e..b7be843c88e2 100644
--- a/include/linux/spi/ad7877.h
+++ b/include/linux/spi/ad7877.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/spi/ad7877.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
diff --git a/include/linux/spi/ads7846.h b/include/linux/spi/ads7846.h
index 2f694f3846a9..1a5eaef3b7f2 100644
--- a/include/linux/spi/ads7846.h
+++ b/include/linux/spi/ads7846.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/spi/ads7846.h */
 
 /* Touchscreen characteristics vary between boards and models.  The
diff --git a/include/linux/spi/at73c213.h b/include/linux/spi/at73c213.h
index 0f20a70e5eb4..cbca6654aa31 100644
--- a/include/linux/spi/at73c213.h
+++ b/include/linux/spi/at73c213.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Board-specific data used to set up AT73c213 audio DAC driver.
  */
diff --git a/include/linux/spi/corgi_lcd.h b/include/linux/spi/corgi_lcd.h
index 6692b3418ccf..edf4beccdadb 100644
--- a/include/linux/spi/corgi_lcd.h
+++ b/include/linux/spi/corgi_lcd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_CORGI_LCD_H
 #define __LINUX_SPI_CORGI_LCD_H
 
diff --git a/include/linux/spi/ds1305.h b/include/linux/spi/ds1305.h
index 287ec830eab7..82db6cd152dc 100644
--- a/include/linux/spi/ds1305.h
+++ b/include/linux/spi/ds1305.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_DS1305_H
 #define __LINUX_SPI_DS1305_H
 
diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h
index e34e169f9dcb..aceccf9c71fb 100644
--- a/include/linux/spi/eeprom.h
+++ b/include/linux/spi/eeprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_EEPROM_H
 #define __LINUX_SPI_EEPROM_H
 
diff --git a/include/linux/spi/flash.h b/include/linux/spi/flash.h
index f4199e758f97..2401a0887209 100644
--- a/include/linux/spi/flash.h
+++ b/include/linux/spi/flash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SPI_FLASH_H
 #define LINUX_SPI_FLASH_H
 
diff --git a/include/linux/spi/ifx_modem.h b/include/linux/spi/ifx_modem.h
index 394fec9e7722..694268c78d5d 100644
--- a/include/linux/spi/ifx_modem.h
+++ b/include/linux/spi/ifx_modem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_IFX_MODEM_H
 #define LINUX_IFX_MODEM_H
 
diff --git a/include/linux/spi/max7301.h b/include/linux/spi/max7301.h
index bcaa2f762cc1..433c20e2f46e 100644
--- a/include/linux/spi/max7301.h
+++ b/include/linux/spi/max7301.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SPI_MAX7301_H
 #define LINUX_SPI_MAX7301_H
 
diff --git a/include/linux/spi/mc33880.h b/include/linux/spi/mc33880.h
index 82ffccd6fbe5..205a49cb99db 100644
--- a/include/linux/spi/mc33880.h
+++ b/include/linux/spi/mc33880.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SPI_MC33880_H
 #define LINUX_SPI_MC33880_H
 
diff --git a/include/linux/spi/mcp23s08.h b/include/linux/spi/mcp23s08.h
index 82d96a346e6f..738a45b435f2 100644
--- a/include/linux/spi/mcp23s08.h
+++ b/include/linux/spi/mcp23s08.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 struct mcp23s08_platform_data {
 	/* For mcp23s08, up to 4 slaves (numbered 0..3) can share one SPI
 	 * chipselect, each providing 1 gpio_chip instance with 8 gpios.
diff --git a/include/linux/spi/mmc_spi.h b/include/linux/spi/mmc_spi.h
index 274bc0fa00af..bfde741a543d 100644
--- a/include/linux/spi/mmc_spi.h
+++ b/include/linux/spi/mmc_spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_MMC_SPI_H
 #define __LINUX_SPI_MMC_SPI_H
 
diff --git a/include/linux/spi/sh_msiof.h b/include/linux/spi/sh_msiof.h
index f74b581f242f..dc2a0cbd210d 100644
--- a/include/linux/spi/sh_msiof.h
+++ b/include/linux/spi/sh_msiof.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SPI_SH_MSIOF_H__
 #define __SPI_SH_MSIOF_H__
 
diff --git a/include/linux/spi/spi-fsl-dspi.h b/include/linux/spi/spi-fsl-dspi.h
new file mode 100644
index 000000000000..74c9bae20bf2
--- /dev/null
+++ b/include/linux/spi/spi-fsl-dspi.h
@@ -0,0 +1,31 @@
+/*
+ * Freescale DSPI controller driver
+ *
+ * Copyright (c) 2017 Angelo Dureghello <angelo@sysam.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef SPI_FSL_DSPI_HEADER_H
+#define SPI_FSL_DSPI_HEADER_H
+
+/**
+ * struct fsl_dspi_platform_data - platform data for the Freescale DSPI driver
+ * @bus_num: board specific identifier for this DSPI driver.
+ * @cs_num: number of chip selects supported by this DSPI driver.
+ */
+struct fsl_dspi_platform_data {
+	u32 cs_num;
+	u32 bus_num;
+	u32 sck_cs_delay;
+	u32 cs_sck_delay;
+};
+
+#endif /* SPI_FSL_DSPI_HEADER_H */
diff --git a/include/linux/spi/spi_bitbang.h b/include/linux/spi/spi_bitbang.h
index 154788ed218c..51d8c060e513 100644
--- a/include/linux/spi/spi_bitbang.h
+++ b/include/linux/spi/spi_bitbang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef	__SPI_BITBANG_H
 #define	__SPI_BITBANG_H
 
diff --git a/include/linux/spi/spi_gpio.h b/include/linux/spi/spi_gpio.h
index 1634ce31c06d..e7bd89a59cd1 100644
--- a/include/linux/spi/spi_gpio.h
+++ b/include/linux/spi/spi_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_GPIO_H
 #define __LINUX_SPI_GPIO_H
 
diff --git a/include/linux/spi/spi_oc_tiny.h b/include/linux/spi/spi_oc_tiny.h
index 1ac529cf4f06..a3ecf2feadf2 100644
--- a/include/linux/spi/spi_oc_tiny.h
+++ b/include/linux/spi/spi_oc_tiny.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SPI_SPI_OC_TINY_H
 #define _LINUX_SPI_SPI_OC_TINY_H
 
diff --git a/include/linux/spi/tdo24m.h b/include/linux/spi/tdo24m.h
index 7572d4e1fe76..48dd58ac5383 100644
--- a/include/linux/spi/tdo24m.h
+++ b/include/linux/spi/tdo24m.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TDO24M_H__
 #define __TDO24M_H__
 
diff --git a/include/linux/spi/xilinx_spi.h b/include/linux/spi/xilinx_spi.h
index 333ecdfee0d9..c15d69d28e68 100644
--- a/include/linux/spi/xilinx_spi.h
+++ b/include/linux/spi/xilinx_spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPI_XILINX_SPI_H
 #define __LINUX_SPI_XILINX_SPI_H
 
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index 69e079c5ff98..a39186194cd6 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPINLOCK_H
 #define __LINUX_SPINLOCK_H
 
@@ -165,6 +166,10 @@ static inline void do_raw_spin_lock(raw_spinlock_t *lock) __acquires(lock)
 	arch_spin_lock(&lock->raw_lock);
 }
 
+#ifndef arch_spin_lock_flags
+#define arch_spin_lock_flags(lock, flags)	arch_spin_lock(lock)
+#endif
+
 static inline void
 do_raw_spin_lock_flags(raw_spinlock_t *lock, unsigned long *flags) __acquires(lock)
 {
@@ -278,12 +283,6 @@ static inline void do_raw_spin_unlock(raw_spinlock_t *lock) __releases(lock)
 	1 : ({ local_irq_restore(flags); 0; }); \
 })
 
-/**
- * raw_spin_can_lock - would raw_spin_trylock() succeed?
- * @lock: the spinlock in question.
- */
-#define raw_spin_can_lock(lock)	(!raw_spin_is_locked(lock))
-
 /* Include rwlock functions */
 #include <linux/rwlock.h>
 
@@ -396,11 +395,6 @@ static __always_inline int spin_is_contended(spinlock_t *lock)
 	return raw_spin_is_contended(&lock->rlock);
 }
 
-static __always_inline int spin_can_lock(spinlock_t *lock)
-{
-	return raw_spin_can_lock(&lock->rlock);
-}
-
 #define assert_spin_locked(lock)	assert_raw_spin_locked(&(lock)->rlock)
 
 /*
diff --git a/include/linux/spinlock_up.h b/include/linux/spinlock_up.h
index 612fb530af41..0ac9112c1bbe 100644
--- a/include/linux/spinlock_up.h
+++ b/include/linux/spinlock_up.h
@@ -32,14 +32,6 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 	barrier();
 }
 
-static inline void
-arch_spin_lock_flags(arch_spinlock_t *lock, unsigned long flags)
-{
-	local_irq_save(flags);
-	lock->slock = 0;
-	barrier();
-}
-
 static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	char oldval = lock->slock;
@@ -77,7 +69,4 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
 
 #define arch_spin_is_contended(lock)	(((void)(lock), 0))
 
-#define arch_read_can_lock(lock)	(((void)(lock), 1))
-#define arch_write_can_lock(lock)	(((void)(lock), 1))
-
 #endif /* __LINUX_SPINLOCK_UP_H */
diff --git a/include/linux/splice.h b/include/linux/splice.h
index db42746bdfea..74b4911ac16d 100644
--- a/include/linux/splice.h
+++ b/include/linux/splice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Function declerations and data structures related to the splice
  * implementation.
diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index 39af9bc0f653..62be8966e837 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -78,6 +78,7 @@ void synchronize_srcu(struct srcu_struct *sp);
 
 /**
  * srcu_read_lock_held - might we be in SRCU read-side critical section?
+ * @sp: The srcu_struct structure to check
  *
  * If CONFIG_DEBUG_LOCK_ALLOC is selected, returns nonzero iff in an SRCU
  * read-side critical section.  In absence of CONFIG_DEBUG_LOCK_ALLOC,
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 26a0b3c3ce5f..3b43655cabe6 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_H_
 #define LINUX_SSB_H_
 
diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h
index 0688472500bb..31593b34608e 100644
--- a/include/linux/ssb/ssb_driver_gige.h
+++ b/include/linux/ssb/ssb_driver_gige.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_DRIVER_GIGE_H_
 #define LINUX_SSB_DRIVER_GIGE_H_
 
diff --git a/include/linux/ssb/ssb_driver_mips.h b/include/linux/ssb/ssb_driver_mips.h
index 6535e4718fde..bef6bba32dff 100644
--- a/include/linux/ssb/ssb_driver_mips.h
+++ b/include/linux/ssb/ssb_driver_mips.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_MIPSCORE_H_
 #define LINUX_SSB_MIPSCORE_H_
 
diff --git a/include/linux/ssb/ssb_driver_pci.h b/include/linux/ssb/ssb_driver_pci.h
index 41e330e51c2a..42824bdfe16e 100644
--- a/include/linux/ssb/ssb_driver_pci.h
+++ b/include/linux/ssb/ssb_driver_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_PCICORE_H_
 #define LINUX_SSB_PCICORE_H_
 
diff --git a/include/linux/ssb/ssb_embedded.h b/include/linux/ssb/ssb_embedded.h
index 8d8dedff059d..49604ac3db82 100644
--- a/include/linux/ssb/ssb_embedded.h
+++ b/include/linux/ssb/ssb_embedded.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_EMBEDDED_H_
 #define LINUX_SSB_EMBEDDED_H_
 
diff --git a/include/linux/ssb/ssb_regs.h b/include/linux/ssb/ssb_regs.h
index c0f707ac192b..210f46494065 100644
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SSB_REGS_H_
 #define LINUX_SSB_REGS_H_
 
diff --git a/include/linux/stackprotector.h b/include/linux/stackprotector.h
index 6f3e54c704c0..03696c729fb4 100644
--- a/include/linux/stackprotector.h
+++ b/include/linux/stackprotector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STACKPROTECTOR_H
 #define _LINUX_STACKPROTECTOR_H 1
 
diff --git a/include/linux/stacktrace.h b/include/linux/stacktrace.h
index 4205f71a5f0e..ba29a0613e66 100644
--- a/include/linux/stacktrace.h
+++ b/include/linux/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_STACKTRACE_H
 #define __LINUX_STACKTRACE_H
 
diff --git a/include/linux/start_kernel.h b/include/linux/start_kernel.h
index d3e5f2756545..4b268d86a784 100644
--- a/include/linux/start_kernel.h
+++ b/include/linux/start_kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_START_KERNEL_H
 #define _LINUX_START_KERNEL_H
 
diff --git a/include/linux/stat.h b/include/linux/stat.h
index 64b6b3aece21..22484e44544d 100644
--- a/include/linux/stat.h
+++ b/include/linux/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STAT_H
 #define _LINUX_STAT_H
 
diff --git a/include/linux/statfs.h b/include/linux/statfs.h
index 0166d320a75d..3142e98546ac 100644
--- a/include/linux/statfs.h
+++ b/include/linux/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STATFS_H
 #define _LINUX_STATFS_H
 
diff --git a/include/linux/stddef.h b/include/linux/stddef.h
index 9c61c7cda936..2181719fd907 100644
--- a/include/linux/stddef.h
+++ b/include/linux/stddef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STDDEF_H
 #define _LINUX_STDDEF_H
 
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 108739ff9223..32feac5bbd75 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -126,14 +126,14 @@ struct stmmac_axi {
 
 struct stmmac_rxq_cfg {
 	u8 mode_to_use;
-	u8 chan;
+	u32 chan;
 	u8 pkt_route;
 	bool use_prio;
 	u32 prio;
 };
 
 struct stmmac_txq_cfg {
-	u8 weight;
+	u32 weight;
 	u8 mode_to_use;
 	/* Credit Base Shaper parameters */
 	u32 send_slope;
@@ -168,8 +168,8 @@ struct plat_stmmacenet_data {
 	int unicast_filter_entries;
 	int tx_fifo_size;
 	int rx_fifo_size;
-	u8 rx_queues_to_use;
-	u8 tx_queues_to_use;
+	u32 rx_queues_to_use;
+	u32 tx_queues_to_use;
 	u8 rx_sched_algorithm;
 	u8 tx_sched_algorithm;
 	struct stmmac_rxq_cfg rx_queues_cfg[MTL_MAX_RX_QUEUES];
diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 3d60275e3ba9..6d3635c86dbe 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STOP_MACHINE
 #define _LINUX_STOP_MACHINE
 
diff --git a/include/linux/string.h b/include/linux/string.h
index 54d21783e18d..410ecf17de3c 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STRING_H_
 #define _LINUX_STRING_H_
 
diff --git a/include/linux/string_helpers.h b/include/linux/string_helpers.h
index 5ce9538f290e..4397c52ec4a4 100644
--- a/include/linux/string_helpers.h
+++ b/include/linux/string_helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_STRING_HELPERS_H_
 #define _LINUX_STRING_HELPERS_H_
 
diff --git a/include/linux/stringhash.h b/include/linux/stringhash.h
index 7c2d95170d01..e8f0f852968f 100644
--- a/include/linux/stringhash.h
+++ b/include/linux/stringhash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_STRINGHASH_H
 #define __LINUX_STRINGHASH_H
 
diff --git a/include/linux/sungem_phy.h b/include/linux/sungem_phy.h
index bd9be9f59d3a..3a11fa41a131 100644
--- a/include/linux/sungem_phy.h
+++ b/include/linux/sungem_phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUNGEM_PHY_H__
 #define __SUNGEM_PHY_H__
 
diff --git a/include/linux/sunrpc/addr.h b/include/linux/sunrpc/addr.h
index 5c9c6cd08d3b..07d454873b6d 100644
--- a/include/linux/sunrpc/addr.h
+++ b/include/linux/sunrpc/addr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/addr.h
  *
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index 8fd3504946ad..d9af474a857d 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/auth.h
  *
diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h
index cebdf8745901..0c9eac351aab 100644
--- a/include/linux/sunrpc/auth_gss.h
+++ b/include/linux/sunrpc/auth_gss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/auth_gss.h
  *
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 55ef67bea06b..71c237e8240e 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/clnt.h
  *
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index 8da0f37f3bdc..f6aeed07fe04 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/debug.h
  *
diff --git a/include/linux/sunrpc/gss_api.h b/include/linux/sunrpc/gss_api.h
index 68ec78c1aa48..5ac5db4d295f 100644
--- a/include/linux/sunrpc/gss_api.h
+++ b/include/linux/sunrpc/gss_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/gss_api.h
  *
diff --git a/include/linux/sunrpc/metrics.h b/include/linux/sunrpc/metrics.h
index 694eecb2f1b5..9baed7b355b2 100644
--- a/include/linux/sunrpc/metrics.h
+++ b/include/linux/sunrpc/metrics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/metrics.h
  *
diff --git a/include/linux/sunrpc/msg_prot.h b/include/linux/sunrpc/msg_prot.h
index 59cbf16eaeb5..4722b28ec36a 100644
--- a/include/linux/sunrpc/msg_prot.h
+++ b/include/linux/sunrpc/msg_prot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/msg_prot.h
  *
diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
index 7f490bef9e99..a5704daf5df9 100644
--- a/include/linux/sunrpc/rpc_pipe_fs.h
+++ b/include/linux/sunrpc/rpc_pipe_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SUNRPC_RPC_PIPE_FS_H
 #define _LINUX_SUNRPC_RPC_PIPE_FS_H
 
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index c1768f9d993b..d96e74e114c0 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/sched.h
  *
diff --git a/include/linux/sunrpc/stats.h b/include/linux/sunrpc/stats.h
index edc64219f92b..84b92b4ad1c0 100644
--- a/include/linux/sunrpc/stats.h
+++ b/include/linux/sunrpc/stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/stats.h
  *
diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h
index 38f561b2dda3..3b9f0d1dbb80 100644
--- a/include/linux/sunrpc/svc.h
+++ b/include/linux/sunrpc/svc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svc.h
  *
diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h
index 6a2ad38f5458..1caf7bc83306 100644
--- a/include/linux/sunrpc/svc_xprt.h
+++ b/include/linux/sunrpc/svc_xprt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svc_xprt.h
  *
diff --git a/include/linux/sunrpc/svcauth.h b/include/linux/sunrpc/svcauth.h
index d03932055328..7c3656505847 100644
--- a/include/linux/sunrpc/svcauth.h
+++ b/include/linux/sunrpc/svcauth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svcauth.h
  *
diff --git a/include/linux/sunrpc/svcauth_gss.h b/include/linux/sunrpc/svcauth_gss.h
index 726aff1a5201..a4528b26c8aa 100644
--- a/include/linux/sunrpc/svcauth_gss.h
+++ b/include/linux/sunrpc/svcauth_gss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svcauth_gss.h
  *
diff --git a/include/linux/sunrpc/svcsock.h b/include/linux/sunrpc/svcsock.h
index 2e780134f449..119718a922f2 100644
--- a/include/linux/sunrpc/svcsock.h
+++ b/include/linux/sunrpc/svcsock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/svcsock.h
  *
diff --git a/include/linux/sunrpc/timer.h b/include/linux/sunrpc/timer.h
index 697d6e69d61f..242dbe00b5ff 100644
--- a/include/linux/sunrpc/timer.h
+++ b/include/linux/sunrpc/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/timer.h
  *
diff --git a/include/linux/sunrpc/types.h b/include/linux/sunrpc/types.h
index 11a7536c0fd2..bd3c8e05632b 100644
--- a/include/linux/sunrpc/types.h
+++ b/include/linux/sunrpc/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/include/linux/sunrpc/types.h
  *
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index 86b59e3525a5..d950223c64b1 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * XDR standard data types and function declarations
  *
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 5a7bff41f6b7..7fad83881ce1 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/xprt.h
  *
diff --git a/include/linux/sunrpc/xprtmultipath.h b/include/linux/sunrpc/xprtmultipath.h
index 507418c1c69e..af1257c030d2 100644
--- a/include/linux/sunrpc/xprtmultipath.h
+++ b/include/linux/sunrpc/xprtmultipath.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RPC client multipathing definitions
  *
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index c9959d7e3579..ae0f99b9b965 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  linux/include/linux/sunrpc/xprtsock.h
  *
diff --git a/include/linux/sunserialcore.h b/include/linux/sunserialcore.h
index dbe4d7fca1b8..c12d1c7fa42b 100644
--- a/include/linux/sunserialcore.h
+++ b/include/linux/sunserialcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* sunserialcore.h
  *
  * Generic SUN serial/kbd/ms layer.  Based entirely
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index d10b7980799d..d60b0f5c38d5 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SUSPEND_H
 #define _LINUX_SUSPEND_H
 
diff --git a/include/linux/svga.h b/include/linux/svga.h
index bfa68e837d6a..3bfe4626953d 100644
--- a/include/linux/svga.h
+++ b/include/linux/svga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SVGA_H
 #define _LINUX_SVGA_H
 
diff --git a/include/linux/sw842.h b/include/linux/sw842.h
index 109ba041c2ae..3e29f5dcc62b 100644
--- a/include/linux/sw842.h
+++ b/include/linux/sw842.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SW842_H__
 #define __SW842_H__
 
diff --git a/include/linux/swab.h b/include/linux/swab.h
index 9ad3c60f6cae..e466fd159c85 100644
--- a/include/linux/swab.h
+++ b/include/linux/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAB_H
 #define _LINUX_SWAB_H
 
diff --git a/include/linux/swait.h b/include/linux/swait.h
index 4a4e180d0a35..c98aaf677466 100644
--- a/include/linux/swait.h
+++ b/include/linux/swait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAIT_H
 #define _LINUX_SWAIT_H
 
@@ -9,13 +10,16 @@
 /*
  * Simple wait queues
  *
- * While these are very similar to the other/complex wait queues (wait.h) the
- * most important difference is that the simple waitqueue allows for
- * deterministic behaviour -- IOW it has strictly bounded IRQ and lock hold
- * times.
+ * While these are very similar to regular wait queues (wait.h) the most
+ * important difference is that the simple waitqueue allows for deterministic
+ * behaviour -- IOW it has strictly bounded IRQ and lock hold times.
  *
- * In order to make this so, we had to drop a fair number of features of the
- * other waitqueue code; notably:
+ * Mainly, this is accomplished by two things. Firstly not allowing swake_up_all
+ * from IRQ disabled, and dropping the lock upon every wakeup, giving a higher
+ * priority task a chance to run.
+ *
+ * Secondly, we had to drop a fair number of features of the other waitqueue
+ * code; notably:
  *
  *  - mixing INTERRUPTIBLE and UNINTERRUPTIBLE sleeps on the same waitqueue;
  *    all wakeups are TASK_NORMAL in order to avoid O(n) lookups for the right
@@ -24,12 +28,14 @@
  *  - the exclusive mode; because this requires preserving the list order
  *    and this is hard.
  *
- *  - custom wake functions; because you cannot give any guarantees about
- *    random code.
- *
- * As a side effect of this; the data structures are slimmer.
+ *  - custom wake callback functions; because you cannot give any guarantees
+ *    about random code. This also allows swait to be used in RT, such that
+ *    raw spinlock can be used for the swait queue head.
  *
- * One would recommend using this wait queue where possible.
+ * As a side effect of these; the data structures are slimmer albeit more ad-hoc.
+ * For all the above, note that simple wait queues should _only_ be used under
+ * very specific realtime constraints -- it is best to stick with the regular
+ * wait queues in most cases.
  */
 
 struct task_struct;
@@ -79,9 +85,63 @@ extern void __init_swait_queue_head(struct swait_queue_head *q, const char *name
 	DECLARE_SWAIT_QUEUE_HEAD(name)
 #endif
 
-static inline int swait_active(struct swait_queue_head *q)
+/**
+ * swait_active -- locklessly test for waiters on the queue
+ * @wq: the waitqueue to test for waiters
+ *
+ * returns true if the wait list is not empty
+ *
+ * NOTE: this function is lockless and requires care, incorrect usage _will_
+ * lead to sporadic and non-obvious failure.
+ *
+ * NOTE2: this function has the same above implications as regular waitqueues.
+ *
+ * Use either while holding swait_queue_head::lock or when used for wakeups
+ * with an extra smp_mb() like:
+ *
+ *      CPU0 - waker                    CPU1 - waiter
+ *
+ *                                      for (;;) {
+ *      @cond = true;                     prepare_to_swait(&wq_head, &wait, state);
+ *      smp_mb();                         // smp_mb() from set_current_state()
+ *      if (swait_active(wq_head))        if (@cond)
+ *        wake_up(wq_head);                      break;
+ *                                        schedule();
+ *                                      }
+ *                                      finish_swait(&wq_head, &wait);
+ *
+ * Because without the explicit smp_mb() it's possible for the
+ * swait_active() load to get hoisted over the @cond store such that we'll
+ * observe an empty wait list while the waiter might not observe @cond.
+ * This, in turn, can trigger missing wakeups.
+ *
+ * Also note that this 'optimization' trades a spin_lock() for an smp_mb(),
+ * which (when the lock is uncontended) are of roughly equal cost.
+ */
+static inline int swait_active(struct swait_queue_head *wq)
+{
+	return !list_empty(&wq->task_list);
+}
+
+/**
+ * swq_has_sleeper - check if there are any waiting processes
+ * @wq: the waitqueue to test for waiters
+ *
+ * Returns true if @wq has waiting processes
+ *
+ * Please refer to the comment for swait_active.
+ */
+static inline bool swq_has_sleeper(struct swait_queue_head *wq)
 {
-	return !list_empty(&q->task_list);
+	/*
+	 * We need to be sure we are in sync with the list_add()
+	 * modifications to the wait queue (task_list).
+	 *
+	 * This memory barrier should be paired with one on the
+	 * waiting side.
+	 */
+	smp_mb();
+	return swait_active(wq);
 }
 
 extern void swake_up(struct swait_queue_head *q);
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 8a807292037f..f02fb5db8914 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAP_H
 #define _LINUX_SWAP_H
 
@@ -265,6 +266,10 @@ struct swap_info_struct {
 					 * both locks need hold, hold swap_lock
 					 * first.
 					 */
+	spinlock_t cont_lock;		/*
+					 * protect swap count continuation page
+					 * list.
+					 */
 	struct work_struct discard_work; /* discard worker */
 	struct swap_cluster_list discard_clusters; /* discard clusters list */
 };
diff --git a/include/linux/swap_cgroup.h b/include/linux/swap_cgroup.h
index b2b8ec7bda3f..a12dd1c3966c 100644
--- a/include/linux/swap_cgroup.h
+++ b/include/linux/swap_cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SWAP_CGROUP_H
 #define __LINUX_SWAP_CGROUP_H
 
diff --git a/include/linux/swap_slots.h b/include/linux/swap_slots.h
index 6ef92d17633d..e36b200c2a77 100644
--- a/include/linux/swap_slots.h
+++ b/include/linux/swap_slots.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAP_SLOTS_H
 #define _LINUX_SWAP_SLOTS_H
 
diff --git a/include/linux/swapfile.h b/include/linux/swapfile.h
index 388293a91e8c..06bd7b096167 100644
--- a/include/linux/swapfile.h
+++ b/include/linux/swapfile.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAPFILE_H
 #define _LINUX_SWAPFILE_H
 
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 291c4b534658..9c5a2628d6ce 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SWAPOPS_H
 #define _LINUX_SWAPOPS_H
 
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 15e7160751a8..24ed817082ee 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SWIOTLB_H
 #define __LINUX_SWIOTLB_H
 
diff --git a/include/linux/sys.h b/include/linux/sys.h
index daa6008bfdc8..3ebd9812f2e6 100644
--- a/include/linux/sys.h
+++ b/include/linux/sys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SYS_H
 #define _LINUX_SYS_H
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 88951b795ee3..a78186d826d7 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -200,6 +200,8 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
 #define SYSCALL_DEFINE5(name, ...) SYSCALL_DEFINEx(5, _##name, __VA_ARGS__)
 #define SYSCALL_DEFINE6(name, ...) SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 
+#define SYSCALL_DEFINE_MAXARGS	6
+
 #define SYSCALL_DEFINEx(x, sname, ...)				\
 	SYSCALL_METADATA(sname, x, __VA_ARGS__)			\
 	__SYSCALL_DEFINEx(x, sname, __VA_ARGS__)
@@ -219,21 +221,25 @@ static inline int is_syscall_trace_event(struct trace_event_call *tp_event)
 	}								\
 	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
-#ifdef TIF_FSCHECK
 /*
  * Called before coming back to user-mode. Returning to user-mode with an
  * address limit different than USER_DS can allow to overwrite kernel memory.
  */
 static inline void addr_limit_user_check(void)
 {
-
+#ifdef TIF_FSCHECK
 	if (!test_thread_flag(TIF_FSCHECK))
 		return;
+#endif
 
-	BUG_ON(!segment_eq(get_fs(), USER_DS));
+	if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
+				  "Invalid address limit on user-mode return"))
+		force_sig(SIGKILL, current);
+
+#ifdef TIF_FSCHECK
 	clear_thread_flag(TIF_FSCHECK);
-}
 #endif
+}
 
 asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
 			       qid_t id, void __user *addr);
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index 1d4dba490fb6..b769ecfcc3bd 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sysctl.h: General linux system control interface
  *
@@ -212,6 +213,11 @@ static inline struct ctl_table_header *register_sysctl_paths(
 	return NULL;
 }
 
+static inline struct ctl_table_header *register_sysctl(const char *path, struct ctl_table *table)
+{
+	return NULL;
+}
+
 static inline void unregister_sysctl_table(struct ctl_table_header * table)
 {
 }
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index aa02c328dff5..e32dfe098e82 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * sysfs.h - definitions for the device driver filesystem
  *
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 387fa7d05c98..8c71874e8485 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* -*- linux-c -*-
  *
  *	$Id: sysrq.h,v 1.3 1997/07/17 11:54:33 mj Exp $
diff --git a/include/linux/sysv_fs.h b/include/linux/sysv_fs.h
index e47d6d90023d..5cf77dbb8d86 100644
--- a/include/linux/sysv_fs.h
+++ b/include/linux/sysv_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_SYSV_FS_H
 #define _LINUX_SYSV_FS_H
 
diff --git a/include/linux/t10-pi.h b/include/linux/t10-pi.h
index 635a3c5706bd..c6aa8a3c42ed 100644
--- a/include/linux/t10-pi.h
+++ b/include/linux/t10-pi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_T10_PI_H
 #define _LINUX_T10_PI_H
 
diff --git a/include/linux/task_io_accounting.h b/include/linux/task_io_accounting.h
index bdf855c2856f..6f6acce064de 100644
--- a/include/linux/task_io_accounting.h
+++ b/include/linux/task_io_accounting.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * task_io_accounting: a structure which is used for recording a single task's
  * IO statistics.
diff --git a/include/linux/task_io_accounting_ops.h b/include/linux/task_io_accounting_ops.h
index 4d090f9ee608..bb5498bcdd96 100644
--- a/include/linux/task_io_accounting_ops.h
+++ b/include/linux/task_io_accounting_ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Task I/O accounting operations
  */
diff --git a/include/linux/task_work.h b/include/linux/task_work.h
index ca5a1cf27dae..bd9a6a91c097 100644
--- a/include/linux/task_work.h
+++ b/include/linux/task_work.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TASK_WORK_H
 #define _LINUX_TASK_WORK_H
 
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index e2a5daf8d14f..dbb4d124c7d7 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* taskstats_kern.h - kernel header for per-task statistics interface
  *
  * Copyright (C) Shailabh Nagar, IBM Corp. 2006
diff --git a/include/linux/textsearch.h b/include/linux/textsearch.h
index cfaee869146f..0494db3fd9e8 100644
--- a/include/linux/textsearch.h
+++ b/include/linux/textsearch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TEXTSEARCH_H
 #define __LINUX_TEXTSEARCH_H
 
diff --git a/include/linux/textsearch_fsm.h b/include/linux/textsearch_fsm.h
index fdfa078c66e5..b57231ff652f 100644
--- a/include/linux/textsearch_fsm.h
+++ b/include/linux/textsearch_fsm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TEXTSEARCH_FSM_H
 #define __LINUX_TEXTSEARCH_FSM_H
 
diff --git a/include/linux/thinkpad_acpi.h b/include/linux/thinkpad_acpi.h
index 361de59a2285..9fb317970c01 100644
--- a/include/linux/thinkpad_acpi.h
+++ b/include/linux/thinkpad_acpi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __THINKPAD_ACPI_H__
 #define __THINKPAD_ACPI_H__
 
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index 905d769d8ddc..4bcdf00c110f 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* thread_info.h: common low-level thread information accessors
  *
  * Copyright (C) 2002  David Howells (dhowells@redhat.com)
@@ -42,7 +43,7 @@ enum {
 #define THREAD_ALIGN	THREAD_SIZE
 #endif
 
-#ifdef CONFIG_DEBUG_STACK_USAGE
+#if IS_ENABLED(CONFIG_DEBUG_STACK_USAGE) || IS_ENABLED(CONFIG_DEBUG_KMEMLEAK)
 # define THREADINFO_GFP		(GFP_KERNEL_ACCOUNT | __GFP_NOTRACK | \
 				 __GFP_ZERO)
 #else
diff --git a/include/linux/threads.h b/include/linux/threads.h
index 383ab9592bec..3086dba525e2 100644
--- a/include/linux/threads.h
+++ b/include/linux/threads.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_THREADS_H
 #define _LINUX_THREADS_H
 
diff --git a/include/linux/tick.h b/include/linux/tick.h
index fe01e68bf520..f442d1a42025 100644
--- a/include/linux/tick.h
+++ b/include/linux/tick.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Tick related global functions
  */
@@ -137,7 +138,6 @@ static inline u64 get_cpu_iowait_time_us(int cpu, u64 *unused) { return -1; }
 #ifdef CONFIG_NO_HZ_FULL
 extern bool tick_nohz_full_running;
 extern cpumask_var_t tick_nohz_full_mask;
-extern cpumask_var_t housekeeping_mask;
 
 static inline bool tick_nohz_full_enabled(void)
 {
@@ -161,11 +161,6 @@ static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask)
 		cpumask_or(mask, mask, tick_nohz_full_mask);
 }
 
-static inline int housekeeping_any_cpu(void)
-{
-	return cpumask_any_and(housekeeping_mask, cpu_online_mask);
-}
-
 extern void tick_nohz_dep_set(enum tick_dep_bits bit);
 extern void tick_nohz_dep_clear(enum tick_dep_bits bit);
 extern void tick_nohz_dep_set_cpu(int cpu, enum tick_dep_bits bit);
@@ -234,11 +229,8 @@ static inline void tick_dep_clear_signal(struct signal_struct *signal,
 
 extern void tick_nohz_full_kick_cpu(int cpu);
 extern void __tick_nohz_task_switch(void);
+extern void __init tick_nohz_full_setup(cpumask_var_t cpumask);
 #else
-static inline int housekeeping_any_cpu(void)
-{
-	return smp_processor_id();
-}
 static inline bool tick_nohz_full_enabled(void) { return false; }
 static inline bool tick_nohz_full_cpu(int cpu) { return false; }
 static inline void tick_nohz_full_add_cpus_to(struct cpumask *mask) { }
@@ -258,35 +250,9 @@ static inline void tick_dep_clear_signal(struct signal_struct *signal,
 
 static inline void tick_nohz_full_kick_cpu(int cpu) { }
 static inline void __tick_nohz_task_switch(void) { }
+static inline void tick_nohz_full_setup(cpumask_var_t cpumask) { }
 #endif
 
-static inline const struct cpumask *housekeeping_cpumask(void)
-{
-#ifdef CONFIG_NO_HZ_FULL
-	if (tick_nohz_full_enabled())
-		return housekeeping_mask;
-#endif
-	return cpu_possible_mask;
-}
-
-static inline bool is_housekeeping_cpu(int cpu)
-{
-#ifdef CONFIG_NO_HZ_FULL
-	if (tick_nohz_full_enabled())
-		return cpumask_test_cpu(cpu, housekeeping_mask);
-#endif
-	return true;
-}
-
-static inline void housekeeping_affine(struct task_struct *t)
-{
-#ifdef CONFIG_NO_HZ_FULL
-	if (tick_nohz_full_enabled())
-		set_cpus_allowed_ptr(t, housekeeping_mask);
-
-#endif
-}
-
 static inline void tick_nohz_task_switch(void)
 {
 	if (tick_nohz_full_enabled())
diff --git a/include/linux/time.h b/include/linux/time.h
index 3877136bbdf8..4b62a2c0a661 100644
--- a/include/linux/time.h
+++ b/include/linux/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIME_H
 #define _LINUX_TIME_H
 
@@ -17,149 +18,10 @@ int get_itimerspec64(struct itimerspec64 *it,
 int put_itimerspec64(const struct itimerspec64 *it,
 			struct itimerspec __user *uit);
 
-#define TIME_T_MAX	(time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
-
-static inline int timespec_equal(const struct timespec *a,
-                                 const struct timespec *b)
-{
-	return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
-}
-
-/*
- * lhs < rhs:  return <0
- * lhs == rhs: return 0
- * lhs > rhs:  return >0
- */
-static inline int timespec_compare(const struct timespec *lhs, const struct timespec *rhs)
-{
-	if (lhs->tv_sec < rhs->tv_sec)
-		return -1;
-	if (lhs->tv_sec > rhs->tv_sec)
-		return 1;
-	return lhs->tv_nsec - rhs->tv_nsec;
-}
-
-static inline int timeval_compare(const struct timeval *lhs, const struct timeval *rhs)
-{
-	if (lhs->tv_sec < rhs->tv_sec)
-		return -1;
-	if (lhs->tv_sec > rhs->tv_sec)
-		return 1;
-	return lhs->tv_usec - rhs->tv_usec;
-}
-
 extern time64_t mktime64(const unsigned int year, const unsigned int mon,
 			const unsigned int day, const unsigned int hour,
 			const unsigned int min, const unsigned int sec);
 
-/**
- * Deprecated. Use mktime64().
- */
-static inline unsigned long mktime(const unsigned int year,
-			const unsigned int mon, const unsigned int day,
-			const unsigned int hour, const unsigned int min,
-			const unsigned int sec)
-{
-	return mktime64(year, mon, day, hour, min, sec);
-}
-
-extern void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec);
-
-/*
- * timespec_add_safe assumes both values are positive and checks
- * for overflow. It will return TIME_T_MAX if the reutrn would be
- * smaller then either of the arguments.
- */
-extern struct timespec timespec_add_safe(const struct timespec lhs,
-					 const struct timespec rhs);
-
-
-static inline struct timespec timespec_add(struct timespec lhs,
-						struct timespec rhs)
-{
-	struct timespec ts_delta;
-	set_normalized_timespec(&ts_delta, lhs.tv_sec + rhs.tv_sec,
-				lhs.tv_nsec + rhs.tv_nsec);
-	return ts_delta;
-}
-
-/*
- * sub = lhs - rhs, in normalized form
- */
-static inline struct timespec timespec_sub(struct timespec lhs,
-						struct timespec rhs)
-{
-	struct timespec ts_delta;
-	set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
-				lhs.tv_nsec - rhs.tv_nsec);
-	return ts_delta;
-}
-
-/*
- * Returns true if the timespec is norm, false if denorm:
- */
-static inline bool timespec_valid(const struct timespec *ts)
-{
-	/* Dates before 1970 are bogus */
-	if (ts->tv_sec < 0)
-		return false;
-	/* Can't have more nanoseconds then a second */
-	if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
-		return false;
-	return true;
-}
-
-static inline bool timespec_valid_strict(const struct timespec *ts)
-{
-	if (!timespec_valid(ts))
-		return false;
-	/* Disallow values that could overflow ktime_t */
-	if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
-		return false;
-	return true;
-}
-
-static inline bool timeval_valid(const struct timeval *tv)
-{
-	/* Dates before 1970 are bogus */
-	if (tv->tv_sec < 0)
-		return false;
-
-	/* Can't have more microseconds then a second */
-	if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC)
-		return false;
-
-	return true;
-}
-
-extern struct timespec timespec_trunc(struct timespec t, unsigned gran);
-
-/*
- * Validates if a timespec/timeval used to inject a time offset is valid.
- * Offsets can be postive or negative. The value of the timeval/timespec
- * is the sum of its fields, but *NOTE*: the field tv_usec/tv_nsec must
- * always be non-negative.
- */
-static inline bool timeval_inject_offset_valid(const struct timeval *tv)
-{
-	/* We don't check the tv_sec as it can be positive or negative */
-
-	/* Can't have more microseconds then a second */
-	if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC)
-		return false;
-	return true;
-}
-
-static inline bool timespec_inject_offset_valid(const struct timespec *ts)
-{
-	/* We don't check the tv_sec as it can be positive or negative */
-
-	/* Can't have more nanoseconds then a second */
-	if (ts->tv_nsec < 0 || ts->tv_nsec >= NSEC_PER_SEC)
-		return false;
-	return true;
-}
-
 /* Some architectures do not supply their own clocksource.
  * This is mainly the case in architectures that get their
  * inter-tick times by reading the counter on their interval
@@ -178,7 +40,7 @@ extern int do_setitimer(int which, struct itimerval *value,
 			struct itimerval *ovalue);
 extern int do_getitimer(int which, struct itimerval *value);
 
-extern long do_utimes(int dfd, const char __user *filename, struct timespec *times, int flags);
+extern long do_utimes(int dfd, const char __user *filename, struct timespec64 *times, int flags);
 
 /*
  * Similar to the struct tm in userspace <time.h>, but it needs to be here so
@@ -208,73 +70,7 @@ struct tm {
 
 void time64_to_tm(time64_t totalsecs, int offset, struct tm *result);
 
-/**
- * time_to_tm - converts the calendar time to local broken-down time
- *
- * @totalsecs	the number of seconds elapsed since 00:00:00 on January 1, 1970,
- *		Coordinated Universal Time (UTC).
- * @offset	offset seconds adding to totalsecs.
- * @result	pointer to struct tm variable to receive broken-down time
- */
-static inline void time_to_tm(time_t totalsecs, int offset, struct tm *result)
-{
-	time64_to_tm(totalsecs, offset, result);
-}
-
-/**
- * timespec_to_ns - Convert timespec to nanoseconds
- * @ts:		pointer to the timespec variable to be converted
- *
- * Returns the scalar nanosecond representation of the timespec
- * parameter.
- */
-static inline s64 timespec_to_ns(const struct timespec *ts)
-{
-	return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
-}
-
-/**
- * timeval_to_ns - Convert timeval to nanoseconds
- * @ts:		pointer to the timeval variable to be converted
- *
- * Returns the scalar nanosecond representation of the timeval
- * parameter.
- */
-static inline s64 timeval_to_ns(const struct timeval *tv)
-{
-	return ((s64) tv->tv_sec * NSEC_PER_SEC) +
-		tv->tv_usec * NSEC_PER_USEC;
-}
-
-/**
- * ns_to_timespec - Convert nanoseconds to timespec
- * @nsec:	the nanoseconds value to be converted
- *
- * Returns the timespec representation of the nsec parameter.
- */
-extern struct timespec ns_to_timespec(const s64 nsec);
-
-/**
- * ns_to_timeval - Convert nanoseconds to timeval
- * @nsec:	the nanoseconds value to be converted
- *
- * Returns the timeval representation of the nsec parameter.
- */
-extern struct timeval ns_to_timeval(const s64 nsec);
-
-/**
- * timespec_add_ns - Adds nanoseconds to a timespec
- * @a:		pointer to timespec to be incremented
- * @ns:		unsigned nanoseconds value to be added
- *
- * This must always be inlined because its used from the x86-64 vdso,
- * which cannot call other kernel functions.
- */
-static __always_inline void timespec_add_ns(struct timespec *a, u64 ns)
-{
-	a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
-	a->tv_nsec = ns;
-}
+# include <linux/time32.h>
 
 static inline bool itimerspec64_valid(const struct itimerspec64 *its)
 {
diff --git a/include/linux/time32.h b/include/linux/time32.h
new file mode 100644
index 000000000000..65b1de25198d
--- /dev/null
+++ b/include/linux/time32.h
@@ -0,0 +1,221 @@
+#ifndef _LINUX_TIME32_H
+#define _LINUX_TIME32_H
+/*
+ * These are all interfaces based on the old time_t definition
+ * that overflows in 2038 on 32-bit architectures. New code
+ * should use the replacements based on time64_t and timespec64.
+ *
+ * Any interfaces in here that become unused as we migrate
+ * code to time64_t should get removed.
+ */
+
+#include <linux/time64.h>
+
+#define TIME_T_MAX	(time_t)((1UL << ((sizeof(time_t) << 3) - 1)) - 1)
+
+#if __BITS_PER_LONG == 64
+
+/* timespec64 is defined as timespec here */
+static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
+{
+	return ts64;
+}
+
+static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
+{
+	return ts;
+}
+
+# define timespec_equal			timespec64_equal
+# define timespec_compare		timespec64_compare
+# define set_normalized_timespec	set_normalized_timespec64
+# define timespec_add			timespec64_add
+# define timespec_sub			timespec64_sub
+# define timespec_valid			timespec64_valid
+# define timespec_valid_strict		timespec64_valid_strict
+# define timespec_to_ns			timespec64_to_ns
+# define ns_to_timespec			ns_to_timespec64
+# define timespec_add_ns		timespec64_add_ns
+
+#else
+static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
+{
+	struct timespec ret;
+
+	ret.tv_sec = (time_t)ts64.tv_sec;
+	ret.tv_nsec = ts64.tv_nsec;
+	return ret;
+}
+
+static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
+{
+	struct timespec64 ret;
+
+	ret.tv_sec = ts.tv_sec;
+	ret.tv_nsec = ts.tv_nsec;
+	return ret;
+}
+
+static inline int timespec_equal(const struct timespec *a,
+				 const struct timespec *b)
+{
+	return (a->tv_sec == b->tv_sec) && (a->tv_nsec == b->tv_nsec);
+}
+
+/*
+ * lhs < rhs:  return <0
+ * lhs == rhs: return 0
+ * lhs > rhs:  return >0
+ */
+static inline int timespec_compare(const struct timespec *lhs, const struct timespec *rhs)
+{
+	if (lhs->tv_sec < rhs->tv_sec)
+		return -1;
+	if (lhs->tv_sec > rhs->tv_sec)
+		return 1;
+	return lhs->tv_nsec - rhs->tv_nsec;
+}
+
+extern void set_normalized_timespec(struct timespec *ts, time_t sec, s64 nsec);
+
+static inline struct timespec timespec_add(struct timespec lhs,
+						struct timespec rhs)
+{
+	struct timespec ts_delta;
+
+	set_normalized_timespec(&ts_delta, lhs.tv_sec + rhs.tv_sec,
+				lhs.tv_nsec + rhs.tv_nsec);
+	return ts_delta;
+}
+
+/*
+ * sub = lhs - rhs, in normalized form
+ */
+static inline struct timespec timespec_sub(struct timespec lhs,
+						struct timespec rhs)
+{
+	struct timespec ts_delta;
+
+	set_normalized_timespec(&ts_delta, lhs.tv_sec - rhs.tv_sec,
+				lhs.tv_nsec - rhs.tv_nsec);
+	return ts_delta;
+}
+
+/*
+ * Returns true if the timespec is norm, false if denorm:
+ */
+static inline bool timespec_valid(const struct timespec *ts)
+{
+	/* Dates before 1970 are bogus */
+	if (ts->tv_sec < 0)
+		return false;
+	/* Can't have more nanoseconds then a second */
+	if ((unsigned long)ts->tv_nsec >= NSEC_PER_SEC)
+		return false;
+	return true;
+}
+
+static inline bool timespec_valid_strict(const struct timespec *ts)
+{
+	if (!timespec_valid(ts))
+		return false;
+	/* Disallow values that could overflow ktime_t */
+	if ((unsigned long long)ts->tv_sec >= KTIME_SEC_MAX)
+		return false;
+	return true;
+}
+
+/**
+ * timespec_to_ns - Convert timespec to nanoseconds
+ * @ts:		pointer to the timespec variable to be converted
+ *
+ * Returns the scalar nanosecond representation of the timespec
+ * parameter.
+ */
+static inline s64 timespec_to_ns(const struct timespec *ts)
+{
+	return ((s64) ts->tv_sec * NSEC_PER_SEC) + ts->tv_nsec;
+}
+
+/**
+ * ns_to_timespec - Convert nanoseconds to timespec
+ * @nsec:	the nanoseconds value to be converted
+ *
+ * Returns the timespec representation of the nsec parameter.
+ */
+extern struct timespec ns_to_timespec(const s64 nsec);
+
+/**
+ * timespec_add_ns - Adds nanoseconds to a timespec
+ * @a:		pointer to timespec to be incremented
+ * @ns:		unsigned nanoseconds value to be added
+ *
+ * This must always be inlined because its used from the x86-64 vdso,
+ * which cannot call other kernel functions.
+ */
+static __always_inline void timespec_add_ns(struct timespec *a, u64 ns)
+{
+	a->tv_sec += __iter_div_u64_rem(a->tv_nsec + ns, NSEC_PER_SEC, &ns);
+	a->tv_nsec = ns;
+}
+
+#endif
+
+/**
+ * time_to_tm - converts the calendar time to local broken-down time
+ *
+ * @totalsecs	the number of seconds elapsed since 00:00:00 on January 1, 1970,
+ *		Coordinated Universal Time (UTC).
+ * @offset	offset seconds adding to totalsecs.
+ * @result	pointer to struct tm variable to receive broken-down time
+ */
+static inline void time_to_tm(time_t totalsecs, int offset, struct tm *result)
+{
+	time64_to_tm(totalsecs, offset, result);
+}
+
+static inline unsigned long mktime(const unsigned int year,
+			const unsigned int mon, const unsigned int day,
+			const unsigned int hour, const unsigned int min,
+			const unsigned int sec)
+{
+	return mktime64(year, mon, day, hour, min, sec);
+}
+
+static inline bool timeval_valid(const struct timeval *tv)
+{
+	/* Dates before 1970 are bogus */
+	if (tv->tv_sec < 0)
+		return false;
+
+	/* Can't have more microseconds then a second */
+	if (tv->tv_usec < 0 || tv->tv_usec >= USEC_PER_SEC)
+		return false;
+
+	return true;
+}
+
+extern struct timespec timespec_trunc(struct timespec t, unsigned int gran);
+
+/**
+ * timeval_to_ns - Convert timeval to nanoseconds
+ * @ts:		pointer to the timeval variable to be converted
+ *
+ * Returns the scalar nanosecond representation of the timeval
+ * parameter.
+ */
+static inline s64 timeval_to_ns(const struct timeval *tv)
+{
+	return ((s64) tv->tv_sec * NSEC_PER_SEC) +
+		tv->tv_usec * NSEC_PER_USEC;
+}
+
+/**
+ * ns_to_timeval - Convert nanoseconds to timeval
+ * @nsec:	the nanoseconds value to be converted
+ *
+ * Returns the timeval representation of the nsec parameter.
+ */
+extern struct timeval ns_to_timeval(const s64 nsec);
+
+#endif
diff --git a/include/linux/time64.h b/include/linux/time64.h
index 980c71b3001a..93d39499838e 100644
--- a/include/linux/time64.h
+++ b/include/linux/time64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIME64_H
 #define _LINUX_TIME64_H
 
@@ -7,11 +8,8 @@
 typedef __s64 time64_t;
 typedef __u64 timeu64_t;
 
-/*
- * This wants to go into uapi/linux/time.h once we agreed about the
- * userspace interfaces.
- */
 #if __BITS_PER_LONG == 64
+/* this trick allows us to optimize out timespec64_to_timespec */
 # define timespec64 timespec
 #define itimerspec64 itimerspec
 #else
@@ -41,77 +39,6 @@ struct itimerspec64 {
 #define KTIME_MAX			((s64)~((u64)1 << 63))
 #define KTIME_SEC_MAX			(KTIME_MAX / NSEC_PER_SEC)
 
-#if __BITS_PER_LONG == 64
-
-static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
-{
-	return ts64;
-}
-
-static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
-{
-	return ts;
-}
-
-static inline struct itimerspec itimerspec64_to_itimerspec(struct itimerspec64 *its64)
-{
-	return *its64;
-}
-
-static inline struct itimerspec64 itimerspec_to_itimerspec64(struct itimerspec *its)
-{
-	return *its;
-}
-
-# define timespec64_equal		timespec_equal
-# define timespec64_compare		timespec_compare
-# define set_normalized_timespec64	set_normalized_timespec
-# define timespec64_add			timespec_add
-# define timespec64_sub			timespec_sub
-# define timespec64_valid		timespec_valid
-# define timespec64_valid_strict	timespec_valid_strict
-# define timespec64_to_ns		timespec_to_ns
-# define ns_to_timespec64		ns_to_timespec
-# define timespec64_add_ns		timespec_add_ns
-
-#else
-
-static inline struct timespec timespec64_to_timespec(const struct timespec64 ts64)
-{
-	struct timespec ret;
-
-	ret.tv_sec = (time_t)ts64.tv_sec;
-	ret.tv_nsec = ts64.tv_nsec;
-	return ret;
-}
-
-static inline struct timespec64 timespec_to_timespec64(const struct timespec ts)
-{
-	struct timespec64 ret;
-
-	ret.tv_sec = ts.tv_sec;
-	ret.tv_nsec = ts.tv_nsec;
-	return ret;
-}
-
-static inline struct itimerspec itimerspec64_to_itimerspec(struct itimerspec64 *its64)
-{
-	struct itimerspec ret;
-
-	ret.it_interval = timespec64_to_timespec(its64->it_interval);
-	ret.it_value = timespec64_to_timespec(its64->it_value);
-	return ret;
-}
-
-static inline struct itimerspec64 itimerspec_to_itimerspec64(struct itimerspec *its)
-{
-	struct itimerspec64 ret;
-
-	ret.it_interval = timespec_to_timespec64(its->it_interval);
-	ret.it_value = timespec_to_timespec64(its->it_value);
-	return ret;
-}
-
 static inline int timespec64_equal(const struct timespec64 *a,
 				   const struct timespec64 *b)
 {
@@ -213,8 +140,6 @@ static __always_inline void timespec64_add_ns(struct timespec64 *a, u64 ns)
 	a->tv_nsec = ns;
 }
 
-#endif
-
 /*
  * timespec64_add_safe assumes both values are positive and checks for
  * overflow. It will return TIME64_MAX in case of overflow.
diff --git a/include/linux/timekeeper_internal.h b/include/linux/timekeeper_internal.h
index 0a0a53daf2a2..7e9011101cb0 100644
--- a/include/linux/timekeeper_internal.h
+++ b/include/linux/timekeeper_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * You SHOULD NOT be including this unless you're vsyscall
  * handling code or timekeeping internal code!
@@ -13,19 +14,22 @@
 /**
  * struct tk_read_base - base structure for timekeeping readout
  * @clock:	Current clocksource used for timekeeping.
- * @read:	Read function of @clock
  * @mask:	Bitmask for two's complement subtraction of non 64bit clocks
  * @cycle_last: @clock cycle value at last update
  * @mult:	(NTP adjusted) multiplier for scaled math conversion
  * @shift:	Shift value for scaled math conversion
  * @xtime_nsec: Shifted (fractional) nano seconds offset for readout
  * @base:	ktime_t (nanoseconds) base time for readout
+ * @base_real:	Nanoseconds base value for clock REALTIME readout
  *
  * This struct has size 56 byte on 64 bit. Together with a seqcount it
  * occupies a single 64byte cache line.
  *
  * The struct is separate from struct timekeeper as it is also used
  * for a fast NMI safe accessors.
+ *
+ * @base_real is for the fast NMI safe accessor to allow reading clock
+ * realtime from any context.
  */
 struct tk_read_base {
 	struct clocksource	*clock;
@@ -35,6 +39,7 @@ struct tk_read_base {
 	u32			shift;
 	u64			xtime_nsec;
 	ktime_t			base;
+	u64			base_real;
 };
 
 /**
diff --git a/include/linux/timekeeping.h b/include/linux/timekeeping.h
index ddc229ff6d1e..c198ab40c04f 100644
--- a/include/linux/timekeeping.h
+++ b/include/linux/timekeeping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIMEKEEPING_H
 #define _LINUX_TIMEKEEPING_H
 
@@ -15,27 +16,16 @@ extern void xtime_update(unsigned long ticks);
 /*
  * Get and set timeofday
  */
-extern void do_gettimeofday(struct timeval *tv);
 extern int do_settimeofday64(const struct timespec64 *ts);
 extern int do_sys_settimeofday64(const struct timespec64 *tv,
 				 const struct timezone *tz);
 /*
  * Kernel time accessors
  */
-unsigned long get_seconds(void);
 struct timespec64 current_kernel_time64(void);
-/* does not take xtime_lock */
-struct timespec __current_kernel_time(void);
-
-static inline struct timespec current_kernel_time(void)
-{
-	struct timespec64 now = current_kernel_time64();
-
-	return timespec64_to_timespec(now);
-}
 
 /*
- * timespec based interfaces
+ * timespec64 based interfaces
  */
 struct timespec64 get_monotonic_coarse64(void);
 extern void getrawmonotonic64(struct timespec64 *ts);
@@ -47,116 +37,6 @@ extern int __getnstimeofday64(struct timespec64 *tv);
 extern void getnstimeofday64(struct timespec64 *tv);
 extern void getboottime64(struct timespec64 *ts);
 
-#if BITS_PER_LONG == 64
-/**
- * Deprecated. Use do_settimeofday64().
- */
-static inline int do_settimeofday(const struct timespec *ts)
-{
-	return do_settimeofday64(ts);
-}
-
-static inline int __getnstimeofday(struct timespec *ts)
-{
-	return __getnstimeofday64(ts);
-}
-
-static inline void getnstimeofday(struct timespec *ts)
-{
-	getnstimeofday64(ts);
-}
-
-static inline void ktime_get_ts(struct timespec *ts)
-{
-	ktime_get_ts64(ts);
-}
-
-static inline void ktime_get_real_ts(struct timespec *ts)
-{
-	getnstimeofday64(ts);
-}
-
-static inline void getrawmonotonic(struct timespec *ts)
-{
-	getrawmonotonic64(ts);
-}
-
-static inline struct timespec get_monotonic_coarse(void)
-{
-	return get_monotonic_coarse64();
-}
-
-static inline void getboottime(struct timespec *ts)
-{
-	return getboottime64(ts);
-}
-#else
-/**
- * Deprecated. Use do_settimeofday64().
- */
-static inline int do_settimeofday(const struct timespec *ts)
-{
-	struct timespec64 ts64;
-
-	ts64 = timespec_to_timespec64(*ts);
-	return do_settimeofday64(&ts64);
-}
-
-static inline int __getnstimeofday(struct timespec *ts)
-{
-	struct timespec64 ts64;
-	int ret = __getnstimeofday64(&ts64);
-
-	*ts = timespec64_to_timespec(ts64);
-	return ret;
-}
-
-static inline void getnstimeofday(struct timespec *ts)
-{
-	struct timespec64 ts64;
-
-	getnstimeofday64(&ts64);
-	*ts = timespec64_to_timespec(ts64);
-}
-
-static inline void ktime_get_ts(struct timespec *ts)
-{
-	struct timespec64 ts64;
-
-	ktime_get_ts64(&ts64);
-	*ts = timespec64_to_timespec(ts64);
-}
-
-static inline void ktime_get_real_ts(struct timespec *ts)
-{
-	struct timespec64 ts64;
-
-	getnstimeofday64(&ts64);
-	*ts = timespec64_to_timespec(ts64);
-}
-
-static inline void getrawmonotonic(struct timespec *ts)
-{
-	struct timespec64 ts64;
-
-	getrawmonotonic64(&ts64);
-	*ts = timespec64_to_timespec(ts64);
-}
-
-static inline struct timespec get_monotonic_coarse(void)
-{
-	return timespec64_to_timespec(get_monotonic_coarse64());
-}
-
-static inline void getboottime(struct timespec *ts)
-{
-	struct timespec64 ts64;
-
-	getboottime64(&ts64);
-	*ts = timespec64_to_timespec(ts64);
-}
-#endif
-
 #define ktime_get_real_ts64(ts)	getnstimeofday64(ts)
 
 /*
@@ -239,25 +119,16 @@ static inline u64 ktime_get_raw_ns(void)
 extern u64 ktime_get_mono_fast_ns(void);
 extern u64 ktime_get_raw_fast_ns(void);
 extern u64 ktime_get_boot_fast_ns(void);
+extern u64 ktime_get_real_fast_ns(void);
 
 /*
- * Timespec interfaces utilizing the ktime based ones
+ * timespec64 interfaces utilizing the ktime based ones
  */
-static inline void get_monotonic_boottime(struct timespec *ts)
-{
-	*ts = ktime_to_timespec(ktime_get_boottime());
-}
-
 static inline void get_monotonic_boottime64(struct timespec64 *ts)
 {
 	*ts = ktime_to_timespec64(ktime_get_boottime());
 }
 
-static inline void timekeeping_clocktai(struct timespec *ts)
-{
-	*ts = ktime_to_timespec(ktime_get_clocktai());
-}
-
 static inline void timekeeping_clocktai64(struct timespec64 *ts)
 {
 	*ts = ktime_to_timespec64(ktime_get_clocktai());
@@ -340,10 +211,8 @@ extern void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot);
  */
 extern int persistent_clock_is_local;
 
-extern void read_persistent_clock(struct timespec *ts);
 extern void read_persistent_clock64(struct timespec64 *ts);
 extern void read_boot_clock64(struct timespec64 *ts);
-extern int update_persistent_clock(struct timespec now);
 extern int update_persistent_clock64(struct timespec64 now);
 
 
diff --git a/include/linux/timekeeping32.h b/include/linux/timekeeping32.h
new file mode 100644
index 000000000000..af4114d5dc17
--- /dev/null
+++ b/include/linux/timekeeping32.h
@@ -0,0 +1,151 @@
+#ifndef _LINUX_TIMEKEEPING32_H
+#define _LINUX_TIMEKEEPING32_H
+/*
+ * These interfaces are all based on the old timespec type
+ * and should get replaced with the timespec64 based versions
+ * over time so we can remove the file here.
+ */
+
+extern void do_gettimeofday(struct timeval *tv);
+unsigned long get_seconds(void);
+
+/* does not take xtime_lock */
+struct timespec __current_kernel_time(void);
+
+static inline struct timespec current_kernel_time(void)
+{
+	struct timespec64 now = current_kernel_time64();
+
+	return timespec64_to_timespec(now);
+}
+
+#if BITS_PER_LONG == 64
+/**
+ * Deprecated. Use do_settimeofday64().
+ */
+static inline int do_settimeofday(const struct timespec *ts)
+{
+	return do_settimeofday64(ts);
+}
+
+static inline int __getnstimeofday(struct timespec *ts)
+{
+	return __getnstimeofday64(ts);
+}
+
+static inline void getnstimeofday(struct timespec *ts)
+{
+	getnstimeofday64(ts);
+}
+
+static inline void ktime_get_ts(struct timespec *ts)
+{
+	ktime_get_ts64(ts);
+}
+
+static inline void ktime_get_real_ts(struct timespec *ts)
+{
+	getnstimeofday64(ts);
+}
+
+static inline void getrawmonotonic(struct timespec *ts)
+{
+	getrawmonotonic64(ts);
+}
+
+static inline struct timespec get_monotonic_coarse(void)
+{
+	return get_monotonic_coarse64();
+}
+
+static inline void getboottime(struct timespec *ts)
+{
+	return getboottime64(ts);
+}
+#else
+/**
+ * Deprecated. Use do_settimeofday64().
+ */
+static inline int do_settimeofday(const struct timespec *ts)
+{
+	struct timespec64 ts64;
+
+	ts64 = timespec_to_timespec64(*ts);
+	return do_settimeofday64(&ts64);
+}
+
+static inline int __getnstimeofday(struct timespec *ts)
+{
+	struct timespec64 ts64;
+	int ret = __getnstimeofday64(&ts64);
+
+	*ts = timespec64_to_timespec(ts64);
+	return ret;
+}
+
+static inline void getnstimeofday(struct timespec *ts)
+{
+	struct timespec64 ts64;
+
+	getnstimeofday64(&ts64);
+	*ts = timespec64_to_timespec(ts64);
+}
+
+static inline void ktime_get_ts(struct timespec *ts)
+{
+	struct timespec64 ts64;
+
+	ktime_get_ts64(&ts64);
+	*ts = timespec64_to_timespec(ts64);
+}
+
+static inline void ktime_get_real_ts(struct timespec *ts)
+{
+	struct timespec64 ts64;
+
+	getnstimeofday64(&ts64);
+	*ts = timespec64_to_timespec(ts64);
+}
+
+static inline void getrawmonotonic(struct timespec *ts)
+{
+	struct timespec64 ts64;
+
+	getrawmonotonic64(&ts64);
+	*ts = timespec64_to_timespec(ts64);
+}
+
+static inline struct timespec get_monotonic_coarse(void)
+{
+	return timespec64_to_timespec(get_monotonic_coarse64());
+}
+
+static inline void getboottime(struct timespec *ts)
+{
+	struct timespec64 ts64;
+
+	getboottime64(&ts64);
+	*ts = timespec64_to_timespec(ts64);
+}
+#endif
+
+/*
+ * Timespec interfaces utilizing the ktime based ones
+ */
+static inline void get_monotonic_boottime(struct timespec *ts)
+{
+	*ts = ktime_to_timespec(ktime_get_boottime());
+}
+
+static inline void timekeeping_clocktai(struct timespec *ts)
+{
+	*ts = ktime_to_timespec(ktime_get_clocktai());
+}
+
+/*
+ * Persistent clock related interfaces
+ */
+extern void read_persistent_clock(struct timespec *ts);
+extern int update_persistent_clock(struct timespec now);
+
+#endif
diff --git a/include/linux/timer.h b/include/linux/timer.h
index e6789b8757d5..bf781acfc6d8 100644
--- a/include/linux/timer.h
+++ b/include/linux/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIMER_H
 #define _LINUX_TIMER_H
 
@@ -63,31 +64,21 @@ struct timer_list {
 
 #define TIMER_TRACE_FLAGMASK	(TIMER_MIGRATING | TIMER_DEFERRABLE | TIMER_PINNED | TIMER_IRQSAFE)
 
-#define __TIMER_INITIALIZER(_function, _expires, _data, _flags) { \
+#define TIMER_DATA_TYPE		unsigned long
+#define TIMER_FUNC_TYPE		void (*)(TIMER_DATA_TYPE)
+
+#define __TIMER_INITIALIZER(_function, _data, _flags) {		\
 		.entry = { .next = TIMER_ENTRY_STATIC },	\
 		.function = (_function),			\
-		.expires = (_expires),				\
 		.data = (_data),				\
 		.flags = (_flags),				\
 		__TIMER_LOCKDEP_MAP_INITIALIZER(		\
 			__FILE__ ":" __stringify(__LINE__))	\
 	}
 
-#define TIMER_INITIALIZER(_function, _expires, _data)		\
-	__TIMER_INITIALIZER((_function), (_expires), (_data), 0)
-
-#define TIMER_PINNED_INITIALIZER(_function, _expires, _data)	\
-	__TIMER_INITIALIZER((_function), (_expires), (_data), TIMER_PINNED)
-
-#define TIMER_DEFERRED_INITIALIZER(_function, _expires, _data)	\
-	__TIMER_INITIALIZER((_function), (_expires), (_data), TIMER_DEFERRABLE)
-
-#define TIMER_PINNED_DEFERRED_INITIALIZER(_function, _expires, _data)	\
-	__TIMER_INITIALIZER((_function), (_expires), (_data), TIMER_DEFERRABLE | TIMER_PINNED)
-
-#define DEFINE_TIMER(_name, _function, _expires, _data)		\
+#define DEFINE_TIMER(_name, _function)				\
 	struct timer_list _name =				\
-		TIMER_INITIALIZER(_function, _expires, _data)
+		__TIMER_INITIALIZER((TIMER_FUNC_TYPE)_function, 0, 0)
 
 void init_timer_key(struct timer_list *timer, unsigned int flags,
 		    const char *name, struct lock_class_key *key);
@@ -128,14 +119,6 @@ static inline void init_timer_on_stack_key(struct timer_list *timer,
 
 #define init_timer(timer)						\
 	__init_timer((timer), 0)
-#define init_timer_pinned(timer)					\
-	__init_timer((timer), TIMER_PINNED)
-#define init_timer_deferrable(timer)					\
-	__init_timer((timer), TIMER_DEFERRABLE)
-#define init_timer_pinned_deferrable(timer)				\
-	__init_timer((timer), TIMER_DEFERRABLE | TIMER_PINNED)
-#define init_timer_on_stack(timer)					\
-	__init_timer_on_stack((timer), 0)
 
 #define __setup_timer(_timer, _fn, _data, _flags)			\
 	do {								\
@@ -168,6 +151,40 @@ static inline void init_timer_on_stack_key(struct timer_list *timer,
 #define setup_pinned_deferrable_timer_on_stack(timer, fn, data)		\
 	__setup_timer_on_stack((timer), (fn), (data), TIMER_DEFERRABLE | TIMER_PINNED)
 
+#ifndef CONFIG_LOCKDEP
+static inline void timer_setup(struct timer_list *timer,
+			       void (*callback)(struct timer_list *),
+			       unsigned int flags)
+{
+	__setup_timer(timer, (TIMER_FUNC_TYPE)callback,
+		      (TIMER_DATA_TYPE)timer, flags);
+}
+
+static inline void timer_setup_on_stack(struct timer_list *timer,
+			       void (*callback)(struct timer_list *),
+			       unsigned int flags)
+{
+	__setup_timer_on_stack(timer, (TIMER_FUNC_TYPE)callback,
+			       (TIMER_DATA_TYPE)timer, flags);
+}
+#else
+/*
+ * Under LOCKDEP, the timer lock_class_key (set up in __init_timer) needs
+ * to be tied to the caller's context, so an inline (above) won't work. We
+ * do want to keep the inline for argument type checking, though.
+ */
+# define timer_setup(timer, callback, flags)				\
+		__setup_timer((timer), (TIMER_FUNC_TYPE)(callback),	\
+			      (TIMER_DATA_TYPE)(timer), (flags))
+# define timer_setup_on_stack(timer, callback, flags)			\
+		__setup_timer_on_stack((timer),				\
+				       (TIMER_FUNC_TYPE)(callback),	\
+				       (TIMER_DATA_TYPE)(timer), (flags))
+#endif
+
+#define from_timer(var, callback_timer, timer_fieldname) \
+	container_of(callback_timer, typeof(*var), timer_fieldname)
+
 /**
  * timer_pending - is a timer pending?
  * @timer: the timer in question
@@ -187,6 +204,7 @@ extern void add_timer_on(struct timer_list *timer, int cpu);
 extern int del_timer(struct timer_list * timer);
 extern int mod_timer(struct timer_list *timer, unsigned long expires);
 extern int mod_timer_pending(struct timer_list *timer, unsigned long expires);
+extern int timer_reduce(struct timer_list *timer, unsigned long expires);
 
 /*
  * The jiffies value which is added to now, when there is no timer
diff --git a/include/linux/timerfd.h b/include/linux/timerfd.h
index bab0b1ad0613..0c33260e5dfb 100644
--- a/include/linux/timerfd.h
+++ b/include/linux/timerfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/timerfd.h
  *
diff --git a/include/linux/timerqueue.h b/include/linux/timerqueue.h
index 7eec17ad7fa1..78b8cc73f12f 100644
--- a/include/linux/timerqueue.h
+++ b/include/linux/timerqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TIMERQUEUE_H
 #define _LINUX_TIMERQUEUE_H
 
diff --git a/include/linux/tpm_command.h b/include/linux/tpm_command.h
index 727512e249b5..f5c03e9c3913 100644
--- a/include/linux/tpm_command.h
+++ b/include/linux/tpm_command.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_TPM_COMMAND_H__
 #define __LINUX_TPM_COMMAND_H__
 
diff --git a/include/linux/trace.h b/include/linux/trace.h
index 9330a58e2651..d24991c1fef3 100644
--- a/include/linux/trace.h
+++ b/include/linux/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TRACE_H
 #define _LINUX_TRACE_H
 
diff --git a/include/linux/trace_clock.h b/include/linux/trace_clock.h
index 1d7ca2739272..00e8f98c940f 100644
--- a/include/linux/trace_clock.h
+++ b/include/linux/trace_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TRACE_CLOCK_H
 #define _LINUX_TRACE_CLOCK_H
 
diff --git a/include/linux/trace_events.h b/include/linux/trace_events.h
index 7f11050746ae..2bcb4dc6df1a 100644
--- a/include/linux/trace_events.h
+++ b/include/linux/trace_events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _LINUX_TRACE_EVENT_H
 #define _LINUX_TRACE_EVENT_H
@@ -272,6 +273,7 @@ struct trace_event_call {
 	int				perf_refcount;
 	struct hlist_head __percpu	*perf_events;
 	struct bpf_prog			*prog;
+	struct perf_event		*bpf_prog_owner;
 
 	int	(*perf_perm)(struct trace_event_call *,
 			     struct perf_event *);
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h
index cfaf5a1d4bad..6609b39a7232 100644
--- a/include/linux/trace_seq.h
+++ b/include/linux/trace_seq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TRACE_SEQ_H
 #define _LINUX_TRACE_SEQ_H
 
diff --git a/include/linux/tracepoint-defs.h b/include/linux/tracepoint-defs.h
index a03192052066..64ed7064f1fa 100644
--- a/include/linux/tracepoint-defs.h
+++ b/include/linux/tracepoint-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TRACEPOINT_DEFS_H
 #define TRACEPOINT_DEFS_H 1
 
diff --git a/include/linux/tsacct_kern.h b/include/linux/tsacct_kern.h
index 3251965bf4cc..d8ddce26e1f1 100644
--- a/include/linux/tsacct_kern.h
+++ b/include/linux/tsacct_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * tsacct_kern.h - kernel header for system accounting over taskstats interface
  *
diff --git a/include/linux/tty.h b/include/linux/tty.h
index cf53eb539f6e..7ac8ba208b1f 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_H
 #define _LINUX_TTY_H
 
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index fcdc0f5d9098..31c2b5b166de 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_DRIVER_H
 #define _LINUX_TTY_DRIVER_H
 
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
index d43837f2ce3a..767f62086bd9 100644
--- a/include/linux/tty_flip.h
+++ b/include/linux/tty_flip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_FLIP_H
 #define _LINUX_TTY_FLIP_H
 
diff --git a/include/linux/tty_ldisc.h b/include/linux/tty_ldisc.h
index 3971cf0eb467..3bc5144b1c7e 100644
--- a/include/linux/tty_ldisc.h
+++ b/include/linux/tty_ldisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TTY_LDISC_H
 #define _LINUX_TTY_LDISC_H
 
diff --git a/include/linux/typecheck.h b/include/linux/typecheck.h
index eb5b74a575be..20d310331eb5 100644
--- a/include/linux/typecheck.h
+++ b/include/linux/typecheck.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TYPECHECK_H_INCLUDED
 #define TYPECHECK_H_INCLUDED
 
diff --git a/include/linux/types.h b/include/linux/types.h
index 258099a4ed82..34fce54e4f1b 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_TYPES_H
 #define _LINUX_TYPES_H
 
diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h
index 650f3dd6b800..5bdbd9f49395 100644
--- a/include/linux/u64_stats_sync.h
+++ b/include/linux/u64_stats_sync.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_U64_STATS_SYNC_H
 #define _LINUX_U64_STATS_SYNC_H
 
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 20ef8e6ec2db..251e655d407f 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_UACCESS_H__
 #define __LINUX_UACCESS_H__
 
diff --git a/include/linux/ucs2_string.h b/include/linux/ucs2_string.h
index bb679b48f408..cf3ada3e820e 100644
--- a/include/linux/ucs2_string.h
+++ b/include/linux/ucs2_string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UCS2_STRING_H_
 #define _LINUX_UCS2_STRING_H_
 
diff --git a/include/linux/uidgid.h b/include/linux/uidgid.h
index 25e9d9216340..b0542cd11aeb 100644
--- a/include/linux/uidgid.h
+++ b/include/linux/uidgid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UIDGID_H
 #define _LINUX_UIDGID_H
 
diff --git a/include/linux/ulpi/driver.h b/include/linux/ulpi/driver.h
index a7af21a55248..c7a1810373e3 100644
--- a/include/linux/ulpi/driver.h
+++ b/include/linux/ulpi/driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ULPI_DRIVER_H
 #define __LINUX_ULPI_DRIVER_H
 
diff --git a/include/linux/ulpi/interface.h b/include/linux/ulpi/interface.h
index a2011a919eb6..e93cfa36c3f7 100644
--- a/include/linux/ulpi/interface.h
+++ b/include/linux/ulpi/interface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ULPI_INTERFACE_H
 #define __LINUX_ULPI_INTERFACE_H
 
diff --git a/include/linux/ulpi/regs.h b/include/linux/ulpi/regs.h
index b5b8b8804560..9f607872b2f8 100644
--- a/include/linux/ulpi/regs.h
+++ b/include/linux/ulpi/regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_ULPI_REGS_H
 #define __LINUX_ULPI_REGS_H
 
diff --git a/include/linux/unaligned/access_ok.h b/include/linux/unaligned/access_ok.h
index 33383ca23837..167aa849c0ce 100644
--- a/include/linux/unaligned/access_ok.h
+++ b/include/linux/unaligned/access_ok.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_ACCESS_OK_H
 #define _LINUX_UNALIGNED_ACCESS_OK_H
 
diff --git a/include/linux/unaligned/be_byteshift.h b/include/linux/unaligned/be_byteshift.h
index 9356b24223ac..8bdb8fa01bd4 100644
--- a/include/linux/unaligned/be_byteshift.h
+++ b/include/linux/unaligned/be_byteshift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_BE_BYTESHIFT_H
 #define _LINUX_UNALIGNED_BE_BYTESHIFT_H
 
diff --git a/include/linux/unaligned/be_memmove.h b/include/linux/unaligned/be_memmove.h
index c2a76c5c9ed0..7164214a4ba1 100644
--- a/include/linux/unaligned/be_memmove.h
+++ b/include/linux/unaligned/be_memmove.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_BE_MEMMOVE_H
 #define _LINUX_UNALIGNED_BE_MEMMOVE_H
 
diff --git a/include/linux/unaligned/be_struct.h b/include/linux/unaligned/be_struct.h
index 132415836c50..15ea503a13fc 100644
--- a/include/linux/unaligned/be_struct.h
+++ b/include/linux/unaligned/be_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_BE_STRUCT_H
 #define _LINUX_UNALIGNED_BE_STRUCT_H
 
diff --git a/include/linux/unaligned/generic.h b/include/linux/unaligned/generic.h
index 02d97ff3df70..57d3114656e5 100644
--- a/include/linux/unaligned/generic.h
+++ b/include/linux/unaligned/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_GENERIC_H
 #define _LINUX_UNALIGNED_GENERIC_H
 
diff --git a/include/linux/unaligned/le_byteshift.h b/include/linux/unaligned/le_byteshift.h
index be376fb79b64..1628b75866f0 100644
--- a/include/linux/unaligned/le_byteshift.h
+++ b/include/linux/unaligned/le_byteshift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_LE_BYTESHIFT_H
 #define _LINUX_UNALIGNED_LE_BYTESHIFT_H
 
diff --git a/include/linux/unaligned/le_memmove.h b/include/linux/unaligned/le_memmove.h
index 269849bee4ec..9202e864d026 100644
--- a/include/linux/unaligned/le_memmove.h
+++ b/include/linux/unaligned/le_memmove.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_LE_MEMMOVE_H
 #define _LINUX_UNALIGNED_LE_MEMMOVE_H
 
diff --git a/include/linux/unaligned/le_struct.h b/include/linux/unaligned/le_struct.h
index 088c4572faa8..9977987883a6 100644
--- a/include/linux/unaligned/le_struct.h
+++ b/include/linux/unaligned/le_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_LE_STRUCT_H
 #define _LINUX_UNALIGNED_LE_STRUCT_H
 
diff --git a/include/linux/unaligned/memmove.h b/include/linux/unaligned/memmove.h
index eeb5a779a4fd..ac71b53bc6dc 100644
--- a/include/linux/unaligned/memmove.h
+++ b/include/linux/unaligned/memmove.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_MEMMOVE_H
 #define _LINUX_UNALIGNED_MEMMOVE_H
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index cb9fbd54386e..f019b0397599 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_H
 #define __LINUX_USB_H
 
@@ -1766,7 +1767,21 @@ extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
 extern int usb_get_descriptor(struct usb_device *dev, unsigned char desctype,
 	unsigned char descindex, void *buf, int size);
 extern int usb_get_status(struct usb_device *dev,
-	int type, int target, void *data);
+	int recip, int type, int target, void *data);
+
+static inline int usb_get_std_status(struct usb_device *dev,
+	int recip, int target, void *data)
+{
+	return usb_get_status(dev, recip, USB_STATUS_TYPE_STANDARD, target,
+		data);
+}
+
+static inline int usb_get_ptm_status(struct usb_device *dev, void *data)
+{
+	return usb_get_status(dev, USB_RECIP_DEVICE, USB_STATUS_TYPE_PTM,
+		0, data);
+}
+
 extern int usb_string(struct usb_device *dev, int index,
 	char *buf, size_t size);
 
diff --git a/include/linux/usb/association.h b/include/linux/usb/association.h
index 0a4a18b3c1bb..d7f3cb9b9db5 100644
--- a/include/linux/usb/association.h
+++ b/include/linux/usb/association.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB - Cable Based Association
  *
diff --git a/include/linux/usb/atmel_usba_udc.h b/include/linux/usb/atmel_usba_udc.h
index ba99af275a31..9bb00df3b53f 100644
--- a/include/linux/usb/atmel_usba_udc.h
+++ b/include/linux/usb/atmel_usba_udc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform data definitions for Atmel USBA gadget driver.
  */
diff --git a/include/linux/usb/audio-v2.h b/include/linux/usb/audio-v2.h
index fd73bc0e9027..3119d0ace7aa 100644
--- a/include/linux/usb/audio-v2.h
+++ b/include/linux/usb/audio-v2.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2010 Daniel Mack <daniel@caiaq.de>
  *
diff --git a/include/linux/usb/audio.h b/include/linux/usb/audio.h
index 3d84619110a4..170acd500ea1 100644
--- a/include/linux/usb/audio.h
+++ b/include/linux/usb/audio.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * <linux/usb/audio.h> -- USB Audio definitions.
  *
diff --git a/include/linux/usb/c67x00.h b/include/linux/usb/c67x00.h
index 83c6b45470ca..2fc39e3b7281 100644
--- a/include/linux/usb/c67x00.h
+++ b/include/linux/usb/c67x00.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * usb_c67x00.h: platform definitions for the Cypress C67X00 USB chip
  *
diff --git a/include/linux/usb/cdc-wdm.h b/include/linux/usb/cdc-wdm.h
index 0b3f4295c025..9b895f93d8de 100644
--- a/include/linux/usb/cdc-wdm.h
+++ b/include/linux/usb/cdc-wdm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB CDC Device Management subdriver
  *
diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
index b5706f94ee9e..35d784cf32a4 100644
--- a/include/linux/usb/cdc.h
+++ b/include/linux/usb/cdc.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB CDC common helpers
  *
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 1a59699cf82a..1646c06989df 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
 /*
  * Copyright (C) ST-Ericsson 2010-2012
  * Contact: Alexey Orishko <alexey.orishko@stericsson.com>
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 6cc96bb12ddc..523aa088f6ab 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file holds USB constants and structures that are needed for
  * USB device APIs.  These are used by the USB device model, which is
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index d725cff7268d..07f99362bc90 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Platform data for the chipidea USB dual role controller
  */
diff --git a/include/linux/usb/composite.h b/include/linux/usb/composite.h
index f665d2ceac20..cef0e44601f8 100644
--- a/include/linux/usb/composite.h
+++ b/include/linux/usb/composite.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * composite.h -- framework for usb gadgets which are composite devices
  *
diff --git a/include/linux/usb/ehci-dbgp.h b/include/linux/usb/ehci-dbgp.h
index 7344d9e591cc..62ab3805172d 100644
--- a/include/linux/usb/ehci-dbgp.h
+++ b/include/linux/usb/ehci-dbgp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Standalone EHCI usb debug driver
  *
diff --git a/include/linux/usb/ehci_def.h b/include/linux/usb/ehci_def.h
index e479033bd782..a15ce99dfc2d 100644
--- a/include/linux/usb/ehci_def.h
+++ b/include/linux/usb/ehci_def.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2001-2002 by David Brownell
  *
diff --git a/include/linux/usb/ehci_pdriver.h b/include/linux/usb/ehci_pdriver.h
index db0431b39a63..dd742afdc03f 100644
--- a/include/linux/usb/ehci_pdriver.h
+++ b/include/linux/usb/ehci_pdriver.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
  *
diff --git a/include/linux/usb/ezusb.h b/include/linux/usb/ezusb.h
index 639ee45779fb..487047162ca8 100644
--- a/include/linux/usb/ezusb.h
+++ b/include/linux/usb/ezusb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __EZUSB_H
 #define __EZUSB_H
 
diff --git a/include/linux/usb/functionfs.h b/include/linux/usb/functionfs.h
index 71190663f1ee..570578cc9861 100644
--- a/include/linux/usb/functionfs.h
+++ b/include/linux/usb/functionfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_FUNCTIONFS_H__
 #define __LINUX_FUNCTIONFS_H__ 1
 
diff --git a/include/linux/usb/g_hid.h b/include/linux/usb/g_hid.h
index 50f5745df28c..7581e488c237 100644
--- a/include/linux/usb/g_hid.h
+++ b/include/linux/usb/g_hid.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * g_hid.h -- Header file for USB HID gadget driver
  *
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 21468a722c4a..0142f3af0da6 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * <linux/usb/gadget.h>
  *
@@ -188,6 +189,8 @@ struct usb_ep_caps {
  * @ops: Function pointers used to access hardware-specific operations.
  * @ep_list:the gadget's ep_list holds all of its endpoints
  * @caps:The structure describing types and directions supported by endoint.
+ * @enabled: The current endpoint enabled/disabled state.
+ * @claimed: True if this endpoint is claimed by a function.
  * @maxpacket:The maximum packet size used on this endpoint.  The initial
  *	value can sometimes be reduced (hardware allowing), according to
  *	the endpoint descriptor used to configure the endpoint.
@@ -349,6 +352,9 @@ struct usb_gadget_ops {
  *	or B-Peripheral wants to take host role.
  * @quirk_ep_out_aligned_size: epout requires buffer size to be aligned to
  *	MaxPacketSize.
+ * @quirk_altset_not_supp: UDC controller doesn't support alt settings.
+ * @quirk_stall_not_supp: UDC controller doesn't support stalling.
+ * @quirk_zlp_not_supp: UDC controller doesn't support ZLP.
  * @quirk_avoids_skb_reserve: udc/platform wants to avoid skb_reserve() in
  *	u_ether.c to improve performance.
  * @is_selfpowered: if the gadget is self-powered.
diff --git a/include/linux/usb/gadget_configfs.h b/include/linux/usb/gadget_configfs.h
index c36e95730de1..d61aebd68128 100644
--- a/include/linux/usb/gadget_configfs.h
+++ b/include/linux/usb/gadget_configfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GADGET_CONFIGFS__
 #define __GADGET_CONFIGFS__
 
diff --git a/include/linux/usb/gpio_vbus.h b/include/linux/usb/gpio_vbus.h
index 837bba604a0b..804fb06cf6d6 100644
--- a/include/linux/usb/gpio_vbus.h
+++ b/include/linux/usb/gpio_vbus.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * A simple GPIO VBUS sensing driver for B peripheral only devices
  * with internal transceivers.
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index a1f03ebfde47..176900528822 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2001-2002 by David Brownell
  *
diff --git a/include/linux/usb/input.h b/include/linux/usb/input.h
index 0e010b220e85..974befa72ac0 100644
--- a/include/linux/usb/input.h
+++ b/include/linux/usb/input.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005 Dmitry Torokhov
  *
diff --git a/include/linux/usb/iowarrior.h b/include/linux/usb/iowarrior.h
index 4fd6513d564c..56559bc53214 100644
--- a/include/linux/usb/iowarrior.h
+++ b/include/linux/usb/iowarrior.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_IOWARRIOR_H
 #define __LINUX_USB_IOWARRIOR_H
 
diff --git a/include/linux/usb/irda.h b/include/linux/usb/irda.h
index e345ceaf72d6..396d2b043e64 100644
--- a/include/linux/usb/irda.h
+++ b/include/linux/usb/irda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * USB IrDA Bridge Device Definition
  */
diff --git a/include/linux/usb/isp116x.h b/include/linux/usb/isp116x.h
index 96ca114e88d0..1f331c28bfe3 100644
--- a/include/linux/usb/isp116x.h
+++ b/include/linux/usb/isp116x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Board initialization code should put one of these into dev->platform_data
  * and place the isp116x onto platform_bus.
diff --git a/include/linux/usb/isp1301.h b/include/linux/usb/isp1301.h
index d3a851c28b6a..dedb3b2473e8 100644
--- a/include/linux/usb/isp1301.h
+++ b/include/linux/usb/isp1301.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NXP ISP1301 USB transceiver driver
  *
diff --git a/include/linux/usb/isp1362.h b/include/linux/usb/isp1362.h
index 642684bb9292..5356c4ae386e 100644
--- a/include/linux/usb/isp1362.h
+++ b/include/linux/usb/isp1362.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * board initialization code should put one of these into dev->platform_data
  * and place the isp1362 onto platform_bus.
diff --git a/include/linux/usb/isp1760.h b/include/linux/usb/isp1760.h
index de7de53c5531..b75ded28db81 100644
--- a/include/linux/usb/isp1760.h
+++ b/include/linux/usb/isp1760.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * board initialization should put one of these into dev->platform_data
  * and place the isp1760 onto platform_bus named "isp1760-hcd".
diff --git a/include/linux/usb/m66592.h b/include/linux/usb/m66592.h
index a4ba31ab2fed..2dfe68183495 100644
--- a/include/linux/usb/m66592.h
+++ b/include/linux/usb/m66592.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * M66592 driver platform data
  *
diff --git a/include/linux/usb/msm_hsusb_hw.h b/include/linux/usb/msm_hsusb_hw.h
deleted file mode 100644
index 974c3796a23f..000000000000
--- a/include/linux/usb/msm_hsusb_hw.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (C) 2007 Google, Inc.
- * Author: Brian Swetland <swetland@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef __LINUX_USB_GADGET_MSM72K_UDC_H__
-#define __LINUX_USB_GADGET_MSM72K_UDC_H__
-
-/* USB phy selector - in TCSR address range */
-#define USB2_PHY_SEL         0xfd4ab000
-
-#define USB_AHBBURST         (MSM_USB_BASE + 0x0090)
-#define USB_AHBMODE          (MSM_USB_BASE + 0x0098)
-#define USB_GENCONFIG_2      (MSM_USB_BASE + 0x00a0)
-#define ULPI_TX_PKT_EN_CLR_FIX	BIT(19)
-
-#define USB_CAPLENGTH        (MSM_USB_BASE + 0x0100) /* 8 bit */
-
-#define USB_USBCMD           (MSM_USB_BASE + 0x0140)
-#define USB_PORTSC           (MSM_USB_BASE + 0x0184)
-#define USB_OTGSC            (MSM_USB_BASE + 0x01A4)
-#define USB_USBMODE          (MSM_USB_BASE + 0x01A8)
-#define USB_PHY_CTRL         (MSM_USB_BASE + 0x0240)
-#define USB_PHY_CTRL2        (MSM_USB_BASE + 0x0278)
-
-#define GENCONFIG_2_SESS_VLD_CTRL_EN	BIT(7)
-#define USBCMD_SESS_VLD_CTRL		BIT(25)
-
-#define USBCMD_RESET   2
-#define USB_USBINTR          (MSM_USB_BASE + 0x0148)
-
-#define PORTSC_PHCD            (1 << 23) /* phy suspend mode */
-#define PORTSC_PTS_MASK        (3 << 30)
-#define PORTSC_PTS_ULPI        (2 << 30)
-#define PORTSC_PTS_SERIAL      (3 << 30)
-
-#define USB_ULPI_VIEWPORT    (MSM_USB_BASE + 0x0170)
-#define ULPI_RUN              (1 << 30)
-#define ULPI_WRITE            (1 << 29)
-#define ULPI_READ             (0 << 29)
-#define ULPI_ADDR(n)          (((n) & 255) << 16)
-#define ULPI_DATA(n)          ((n) & 255)
-#define ULPI_DATA_READ(n)     (((n) >> 8) & 255)
-
-/* synopsys 28nm phy registers */
-#define ULPI_PWR_CLK_MNG_REG	0x88
-#define OTG_COMP_DISABLE	BIT(0)
-
-#define ULPI_MISC_A			0x96
-#define ULPI_MISC_A_VBUSVLDEXTSEL	BIT(1)
-#define ULPI_MISC_A_VBUSVLDEXT		BIT(0)
-
-#define ASYNC_INTR_CTRL         (1 << 29) /* Enable async interrupt */
-#define ULPI_STP_CTRL           (1 << 30) /* Block communication with PHY */
-#define PHY_RETEN               (1 << 1) /* PHY retention enable/disable */
-#define PHY_POR_ASSERT		(1 << 0) /* USB2 28nm PHY POR ASSERT */
-
-/* OTG definitions */
-#define OTGSC_INTSTS_MASK	(0x7f << 16)
-#define OTGSC_ID		(1 << 8)
-#define OTGSC_BSV		(1 << 11)
-#define OTGSC_IDIS		(1 << 16)
-#define OTGSC_BSVIS		(1 << 19)
-#define OTGSC_IDIE		(1 << 24)
-#define OTGSC_BSVIE		(1 << 27)
-
-#endif /* __LINUX_USB_GADGET_MSM72K_UDC_H__ */
diff --git a/include/linux/usb/musb-ux500.h b/include/linux/usb/musb-ux500.h
index 1e2c7130f6e1..c4b7ad9850ca 100644
--- a/include/linux/usb/musb-ux500.h
+++ b/include/linux/usb/musb-ux500.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2013 ST-Ericsson AB
  *
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index d315c8907869..5d19e6730475 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This is used to for host and peripheral modes of the driver for
  * Inventra (Multidrop) Highspeed Dual-Role Controllers:  (M)HDRC.
diff --git a/include/linux/usb/net2280.h b/include/linux/usb/net2280.h
index 725120224472..08b85caecfaf 100644
--- a/include/linux/usb/net2280.h
+++ b/include/linux/usb/net2280.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * NetChip 2280 high/full speed USB device controller.
  * Unlike many such controllers, this one talks PCI.
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
index 4031f47629ec..6cbe7a5c2b57 100644
--- a/include/linux/usb/of.h
+++ b/include/linux/usb/of.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * OF helpers for usb devices.
  *
diff --git a/include/linux/usb/ohci_pdriver.h b/include/linux/usb/ohci_pdriver.h
index 012f2b7eb2b6..7eb16cf587ee 100644
--- a/include/linux/usb/ohci_pdriver.h
+++ b/include/linux/usb/ohci_pdriver.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Hauke Mehrtens <hauke@hauke-m.de>
  *
diff --git a/include/linux/usb/otg-fsm.h b/include/linux/usb/otg-fsm.h
index a0a8f878503c..e78eb577d0fa 100644
--- a/include/linux/usb/otg-fsm.h
+++ b/include/linux/usb/otg-fsm.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /* Copyright (C) 2007,2008 Freescale Semiconductor, Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 67929df86df5..69f1b6328532 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* USB OTG (On The Go) defines */
 /*
  *
diff --git a/drivers/staging/typec/pd.h b/include/linux/usb/pd.h
index 30b32ad72acd..e00051ced806 100644
--- a/drivers/staging/typec/pd.h
+++ b/include/linux/usb/pd.h
@@ -104,6 +104,11 @@ static inline unsigned int pd_header_msgid_le(__le16 header)
 
 #define PD_MAX_PAYLOAD		7
 
+/**
+ * struct pd_message - PD message as seen on wire
+ * @header:	PD message header
+ * @payload:	PD message payload
+ */
 struct pd_message {
 	__le16 header;
 	__le32 payload[PD_MAX_PAYLOAD];
diff --git a/drivers/staging/typec/pd_bdo.h b/include/linux/usb/pd_bdo.h
index 90b94d9fea5d..90b94d9fea5d 100644
--- a/drivers/staging/typec/pd_bdo.h
+++ b/include/linux/usb/pd_bdo.h
diff --git a/drivers/staging/typec/pd_vdo.h b/include/linux/usb/pd_vdo.h
index d92259f8de0a..d92259f8de0a 100644
--- a/drivers/staging/typec/pd_vdo.h
+++ b/include/linux/usb/pd_vdo.h
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 8c6914873a16..b7a2625947f5 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * USB PHY defines
  *
diff --git a/include/linux/usb/phy_companion.h b/include/linux/usb/phy_companion.h
index edd2ec23d282..407f530061cd 100644
--- a/include/linux/usb/phy_companion.h
+++ b/include/linux/usb/phy_companion.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * phy-companion.h -- phy companion to indicate the comparator part of PHY
  *
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index de2a722fe3cf..f1fcec2fd5f8 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file holds the definitions of quirks found in USB devices.
  * Only quirks that affect the whole device, not an interface,
@@ -56,4 +57,10 @@
  */
 #define USB_QUIRK_LINEAR_FRAME_INTR_BINTERVAL	BIT(11)
 
+/*
+ * Device needs to be disconnected before suspend to prevent spurious
+ * wakeup.
+ */
+#define USB_QUIRK_DISCONNECT_SUSPEND		BIT(12)
+
 #endif /* __LINUX_USB_QUIRKS_H */
diff --git a/include/linux/usb/r8a66597.h b/include/linux/usb/r8a66597.h
index 55805f9dcf21..c0753d026bbf 100644
--- a/include/linux/usb/r8a66597.h
+++ b/include/linux/usb/r8a66597.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * R8A66597 driver platform data
  *
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index 00a47d058d83..67102f3d59d4 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-1.0+
 /*
  * Renesas USB
  *
@@ -183,8 +184,9 @@ struct renesas_usbhs_driver_param {
 #define USBHS_USB_DMAC_XFER_SIZE	32	/* hardcode the xfer size */
 };
 
-#define USBHS_TYPE_RCAR_GEN2	1
-#define USBHS_TYPE_RCAR_GEN3	2
+#define USBHS_TYPE_RCAR_GEN2		1
+#define USBHS_TYPE_RCAR_GEN3		2
+#define USBHS_TYPE_RCAR_GEN3_WITH_PLL	3
 
 /*
  * option:
diff --git a/include/linux/usb/rndis_host.h b/include/linux/usb/rndis_host.h
index d44ef85db177..809bccd08455 100644
--- a/include/linux/usb/rndis_host.h
+++ b/include/linux/usb/rndis_host.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Host Side support for RNDIS Networking Links
  * Copyright (C) 2005 by David Brownell
diff --git a/include/linux/usb/samsung_usb_phy.h b/include/linux/usb/samsung_usb_phy.h
index 916782699f1c..dc0071741695 100644
--- a/include/linux/usb/samsung_usb_phy.h
+++ b/include/linux/usb/samsung_usb_phy.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (C) 2012 Samsung Electronics Co.Ltd
  *		http://www.samsung.com/
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index e2f0ab07eea5..106551a5616e 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * USB Serial Converter stuff
  *
diff --git a/include/linux/usb/sl811.h b/include/linux/usb/sl811.h
index 3afe4d16fcef..6c97f8e66492 100644
--- a/include/linux/usb/sl811.h
+++ b/include/linux/usb/sl811.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * board initialization should put one of these into dev->platform_data
  * and place the sl811hs onto platform_bus named "sl811-hcd".
diff --git a/include/linux/usb/storage.h b/include/linux/usb/storage.h
index 305ee8db7faf..e0240f864548 100644
--- a/include/linux/usb/storage.h
+++ b/include/linux/usb/storage.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef __LINUX_USB_STORAGE_H
 #define __LINUX_USB_STORAGE_H
 
diff --git a/drivers/staging/typec/tcpm.h b/include/linux/usb/tcpm.h
index 7e9a6b7b5cd6..073197f0d2bb 100644
--- a/drivers/staging/typec/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -54,6 +54,27 @@ enum tcpm_transmit_type {
 	TCPC_TX_BIST_MODE_2 = 7
 };
 
+/**
+ * struct tcpc_config - Port configuration
+ * @src_pdo:	PDO parameters sent to port partner as response to
+ *		PD_CTRL_GET_SOURCE_CAP message
+ * @nr_src_pdo:	Number of entries in @src_pdo
+ * @snk_pdo:	PDO parameters sent to partner as response to
+ *		PD_CTRL_GET_SINK_CAP message
+ * @nr_snk_pdo:	Number of entries in @snk_pdo
+ * @max_snk_mv:	Maximum acceptable sink voltage in mV
+ * @max_snk_ma:	Maximum sink current in mA
+ * @max_snk_mw:	Maximum required sink power in mW
+ * @operating_snk_mw:
+ *		Required operating sink power in mW
+ * @type:	Port type (TYPEC_PORT_DFP, TYPEC_PORT_UFP, or
+ *		TYPEC_PORT_DRP)
+ * @default_role:
+ *		Default port role (TYPEC_SINK or TYPEC_SOURCE).
+ *		Set to TYPEC_NO_PREFERRED_ROLE if no default role.
+ * @try_role_hw:True if try.{Src,Snk} is implemented in hardware
+ * @alt_modes:	List of supported alternate modes
+ */
 struct tcpc_config {
 	const u32 *src_pdo;
 	unsigned int nr_src_pdo;
@@ -79,7 +100,6 @@ struct tcpc_config {
 enum tcpc_usb_switch {
 	TCPC_USB_SWITCH_CONNECT,
 	TCPC_USB_SWITCH_DISCONNECT,
-	TCPC_USB_SWITCH_RESTORE,	/* TODO FIXME */
 };
 
 /* Mux state attributes */
@@ -104,17 +124,40 @@ struct tcpc_mux_dev {
 	void *priv_data;
 };
 
+/**
+ * struct tcpc_dev - Port configuration and callback functions
+ * @config:	Pointer to port configuration
+ * @get_vbus:	Called to read current VBUS state
+ * @get_current_limit:
+ *		Optional; called by the tcpm core when configured as a snk
+ *		and cc=Rp-def. This allows the tcpm to provide a fallback
+ *		current-limit detection method for the cc=Rp-def case.
+ *		For example, some tcpcs may include BC1.2 charger detection
+ *		and use that in this case.
+ * @set_cc:	Called to set value of CC pins
+ * @get_cc:	Called to read current CC pin values
+ * @set_polarity:
+ *		Called to set polarity
+ * @set_vconn:	Called to enable or disable VCONN
+ * @set_vbus:	Called to enable or disable VBUS
+ * @set_current_limit:
+ *		Optional; called to set current limit as negotiated
+ *		with partner.
+ * @set_pd_rx:	Called to enable or disable reception of PD messages
+ * @set_roles:	Called to set power and data roles
+ * @start_drp_toggling:
+ *		Optional; if supported by hardware, called to start DRP
+ *		toggling. DRP toggling is stopped automatically if
+ *		a connection is established.
+ * @try_role:	Optional; called to set a preferred role
+ * @pd_transmit:Called to transmit PD message
+ * @mux:	Pointer to multiplexer data
+ */
 struct tcpc_dev {
 	const struct tcpc_config *config;
 
 	int (*init)(struct tcpc_dev *dev);
 	int (*get_vbus)(struct tcpc_dev *dev);
-	/*
-	 * This optional callback gets called by the tcpm core when configured
-	 * as a snk and cc=Rp-def. This allows the tcpm to provide a fallback
-	 * current-limit detection method for the cc=Rp-def case. E.g. some
-	 * tcpcs may include BC1.2 charger detection and use that in this case.
-	 */
 	int (*get_current_limit)(struct tcpc_dev *dev);
 	int (*set_cc)(struct tcpc_dev *dev, enum typec_cc_status cc);
 	int (*get_cc)(struct tcpc_dev *dev, enum typec_cc_status *cc1,
diff --git a/include/linux/usb/tegra_usb_phy.h b/include/linux/usb/tegra_usb_phy.h
index 1de16c324ec8..d641ea1660b7 100644
--- a/include/linux/usb/tegra_usb_phy.h
+++ b/include/linux/usb/tegra_usb_phy.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2010 Google, Inc.
  *
diff --git a/include/linux/usb/tilegx.h b/include/linux/usb/tilegx.h
index 2d65e3435680..817908573fe8 100644
--- a/include/linux/usb/tilegx.h
+++ b/include/linux/usb/tilegx.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright 2012 Tilera Corporation. All Rights Reserved.
  *
diff --git a/include/linux/usb/typec.h b/include/linux/usb/typec.h
index ffe7487886ca..0d44ce6af08f 100644
--- a/include/linux/usb/typec.h
+++ b/include/linux/usb/typec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __LINUX_USB_TYPEC_H
 #define __LINUX_USB_TYPEC_H
diff --git a/include/linux/usb/uas.h b/include/linux/usb/uas.h
index 3fc8e8b9f043..aa3ad39d39dc 100644
--- a/include/linux/usb/uas.h
+++ b/include/linux/usb/uas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB_UAS_H__
 #define __USB_UAS_H__
 
diff --git a/include/linux/usb/ulpi.h b/include/linux/usb/ulpi.h
index 5f07407a367a..c515765adab7 100644
--- a/include/linux/usb/ulpi.h
+++ b/include/linux/usb/ulpi.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ulpi.h -- ULPI defines and function prorotypes
  *
diff --git a/include/linux/usb/usb338x.h b/include/linux/usb/usb338x.h
index 11525d8d89a7..7189e3387bf9 100644
--- a/include/linux/usb/usb338x.h
+++ b/include/linux/usb/usb338x.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB 338x super/high/full speed USB device controller.
  * Unlike many such controllers, this one talks PCI.
diff --git a/include/linux/usb/usb_phy_generic.h b/include/linux/usb/usb_phy_generic.h
index c13632d5292e..7408cf52c710 100644
--- a/include/linux/usb/usb_phy_generic.h
+++ b/include/linux/usb/usb_phy_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_USB_NOP_XCEIV_H
 #define __LINUX_USB_NOP_XCEIV_H
 
diff --git a/include/linux/usb/usbnet.h b/include/linux/usb/usbnet.h
index 97116379db5f..a69877734c4e 100644
--- a/include/linux/usb/usbnet.h
+++ b/include/linux/usb/usbnet.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * USB Networking Link Interface
  *
diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h
index c1257130769b..64a840b5106e 100644
--- a/include/linux/usb/wusb-wa.h
+++ b/include/linux/usb/wusb-wa.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Wire Adapter constants and structures.
  *
diff --git a/include/linux/usb/wusb.h b/include/linux/usb/wusb.h
index eeb28329fa3c..9e4a3213f2c2 100644
--- a/include/linux/usb/wusb.h
+++ b/include/linux/usb/wusb.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless USB Standard Definitions
  * Event Size Tables
diff --git a/include/linux/usb/xhci-dbgp.h b/include/linux/usb/xhci-dbgp.h
index 80c1cca1f529..0a37f1283bf0 100644
--- a/include/linux/usb/xhci-dbgp.h
+++ b/include/linux/usb/xhci-dbgp.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Standalone xHCI debug capability driver
  *
diff --git a/include/linux/usb_usual.h b/include/linux/usb_usual.h
index 0aae1b2ee931..000a5954b2e8 100644
--- a/include/linux/usb_usual.h
+++ b/include/linux/usb_usual.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Interface to the libusual.
  *
diff --git a/include/linux/usbdevice_fs.h b/include/linux/usbdevice_fs.h
index 04a26285416c..79aab0065ec8 100644
--- a/include/linux/usbdevice_fs.h
+++ b/include/linux/usbdevice_fs.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*****************************************************************************/
 
 /*
diff --git a/include/linux/user-return-notifier.h b/include/linux/user-return-notifier.h
index 9c4a445bb43c..c07b386a9e93 100644
--- a/include/linux/user-return-notifier.h
+++ b/include/linux/user-return-notifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_USER_RETURN_NOTIFIER_H
 #define _LINUX_USER_RETURN_NOTIFIER_H
 
diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index c18e01252346..3fe714da7f5a 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_USER_NAMESPACE_H
 #define _LINUX_USER_NAMESPACE_H
 
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index 48a3483dccb1..f2f3b68ba910 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  include/linux/userfaultfd_k.h
  *
diff --git a/include/linux/util_macros.h b/include/linux/util_macros.h
index f9b2ce58039b..72299f261b25 100644
--- a/include/linux/util_macros.h
+++ b/include/linux/util_macros.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_HELPER_MACROS_H_
 #define _LINUX_HELPER_MACROS_H_
 
diff --git a/include/linux/uts.h b/include/linux/uts.h
index 6ddbd86377de..d62829530c2f 100644
--- a/include/linux/uts.h
+++ b/include/linux/uts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UTS_H
 #define _LINUX_UTS_H
 
diff --git a/include/linux/utsname.h b/include/linux/utsname.h
index da826ed059cf..c8060c2ecd04 100644
--- a/include/linux/utsname.h
+++ b/include/linux/utsname.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UTSNAME_H
 #define _LINUX_UTSNAME_H
 
diff --git a/include/linux/vermagic.h b/include/linux/vermagic.h
index af6c03f7f986..bae807eb2933 100644
--- a/include/linux/vermagic.h
+++ b/include/linux/vermagic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <generated/utsrelease.h>
 
 /* Simply sanity version stamp for modules. */
diff --git a/include/linux/vfs.h b/include/linux/vfs.h
index e701d0541405..33952ac00a19 100644
--- a/include/linux/vfs.h
+++ b/include/linux/vfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VFS_H
 #define _LINUX_VFS_H
 
diff --git a/include/linux/via.h b/include/linux/via.h
index 86ae3bcdb2ba..38ea9a77426a 100644
--- a/include/linux/via.h
+++ b/include/linux/via.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Miscellaneous definitions for VIA chipsets
    Currently used only by drivers/parport/parport_pc.c */
 
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 28b0e965360f..988c7355bc22 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_H
 #define _LINUX_VIRTIO_H
 /* Everything a virtio driver needs to work with any particular virtio
diff --git a/include/linux/virtio_byteorder.h b/include/linux/virtio_byteorder.h
index ce63a2c3a612..825aaefac9b1 100644
--- a/include/linux/virtio_byteorder.h
+++ b/include/linux/virtio_byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_BYTEORDER_H
 #define _LINUX_VIRTIO_BYTEORDER_H
 #include <linux/types.h>
diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 0133d8a12ccd..5559a2d31c46 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_CONFIG_H
 #define _LINUX_VIRTIO_CONFIG_H
 
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 32fb046f2173..210034c896e3 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_NET_H
 #define _LINUX_VIRTIO_NET_H
 
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h
index 270cfa81830e..bbf32524ab27 100644
--- a/include/linux/virtio_ring.h
+++ b/include/linux/virtio_ring.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_RING_H
 #define _LINUX_VIRTIO_RING_H
 
diff --git a/include/linux/virtio_vsock.h b/include/linux/virtio_vsock.h
index ab13f0743da8..e223e2632edd 100644
--- a/include/linux/virtio_vsock.h
+++ b/include/linux/virtio_vsock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_VSOCK_H
 #define _LINUX_VIRTIO_VSOCK_H
 
diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index d77bc35278b0..5c7f010676a7 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef VM_EVENT_ITEM_H_INCLUDED
 #define VM_EVENT_ITEM_H_INCLUDED
 
diff --git a/include/linux/vmacache.h b/include/linux/vmacache.h
index 1081db987391..a5b3aa8d281f 100644
--- a/include/linux/vmacache.h
+++ b/include/linux/vmacache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_VMACACHE_H
 #define __LINUX_VMACACHE_H
 
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index 2d92dd002abd..1e5d8c392f15 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VMALLOC_H
 #define _LINUX_VMALLOC_H
 
diff --git a/include/linux/vme.h b/include/linux/vme.h
index 25874da3f2e1..7e82bf500f01 100644
--- a/include/linux/vme.h
+++ b/include/linux/vme.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VME_H_
 #define _VME_H_
 
diff --git a/include/linux/vmpressure.h b/include/linux/vmpressure.h
index 3347cc3ec0ab..61e6fddfb26f 100644
--- a/include/linux/vmpressure.h
+++ b/include/linux/vmpressure.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_VMPRESSURE_H
 #define __LINUX_VMPRESSURE_H
 
diff --git a/include/linux/vmstat.h b/include/linux/vmstat.h
index ade7cb5f1359..1e0cb72e0598 100644
--- a/include/linux/vmstat.h
+++ b/include/linux/vmstat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VMSTAT_H
 #define _LINUX_VMSTAT_H
 
diff --git a/include/linux/vt.h b/include/linux/vt.h
index b186e0435239..9820ae4f99ab 100644
--- a/include/linux/vt.h
+++ b/include/linux/vt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VT_H
 #define _LINUX_VT_H
 
diff --git a/include/linux/vt_buffer.h b/include/linux/vt_buffer.h
index 30b6e0d2a942..848db1b1569f 100644
--- a/include/linux/vt_buffer.h
+++ b/include/linux/vt_buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	include/linux/vt_buffer.h -- Access to VT screen buffer
  *
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 833fdd4794a0..3fd07912909c 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VT_KERN_H
 #define _VT_KERN_H
 
diff --git a/include/linux/vtime.h b/include/linux/vtime.h
index 18b405e3cd93..a26ed10a4eac 100644
--- a/include/linux/vtime.h
+++ b/include/linux/vtime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_KERNEL_VTIME_H
 #define _LINUX_KERNEL_VTIME_H
 
diff --git a/include/linux/wait.h b/include/linux/wait.h
index dc19880c02f5..158715445ffb 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_WAIT_H
 #define _LINUX_WAIT_H
 /*
@@ -18,6 +19,7 @@ int default_wake_function(struct wait_queue_entry *wq_entry, unsigned mode, int
 /* wait_queue_entry::flags */
 #define WQ_FLAG_EXCLUSIVE	0x01
 #define WQ_FLAG_WOKEN		0x02
+#define WQ_FLAG_BOOKMARK	0x04
 
 /*
  * A single wait-queue entry structure:
@@ -184,6 +186,8 @@ __remove_wait_queue(struct wait_queue_head *wq_head, struct wait_queue_entry *wq
 
 void __wake_up(struct wait_queue_head *wq_head, unsigned int mode, int nr, void *key);
 void __wake_up_locked_key(struct wait_queue_head *wq_head, unsigned int mode, void *key);
+void __wake_up_locked_key_bookmark(struct wait_queue_head *wq_head,
+		unsigned int mode, void *key, wait_queue_entry_t *bookmark);
 void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode, int nr, void *key);
 void __wake_up_locked(struct wait_queue_head *wq_head, unsigned int mode, int nr);
 void __wake_up_sync(struct wait_queue_head *wq_head, unsigned int mode, int nr);
diff --git a/include/linux/wait_bit.h b/include/linux/wait_bit.h
index 12b26660d7e9..af0d495430d7 100644
--- a/include/linux/wait_bit.h
+++ b/include/linux/wait_bit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_WAIT_BIT_H
 #define _LINUX_WAIT_BIT_H
 
diff --git a/include/linux/wanrouter.h b/include/linux/wanrouter.h
index 8198a63cf459..f6358558f9f5 100644
--- a/include/linux/wanrouter.h
+++ b/include/linux/wanrouter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * wanrouter.h	Legacy declarations kept around until X25 is removed
  */
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index a786e5e8973b..44985c4a1e86 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Generic watchdog defines. Derived from..
  *
diff --git a/include/linux/win_minmax.h b/include/linux/win_minmax.h
index 56569604278f..4ca2842d2842 100644
--- a/include/linux/win_minmax.h
+++ b/include/linux/win_minmax.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /**
  * lib/minmax.c: windowed min/max tracker by Kathleen Nichols.
  *
diff --git a/include/linux/wireless.h b/include/linux/wireless.h
index 4ea4c6e2383d..2d1b54556eff 100644
--- a/include/linux/wireless.h
+++ b/include/linux/wireless.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file define a set of standard wireless extensions
  *
diff --git a/include/linux/wm97xx.h b/include/linux/wm97xx.h
index fd98bb968219..58e082dadc68 100644
--- a/include/linux/wm97xx.h
+++ b/include/linux/wm97xx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * Register bits and API for Wolfson WM97xx series of codecs
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 1c49431f3121..01a050fc6650 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * workqueue.h --- work queue handling for Linux.
  */
@@ -17,7 +18,7 @@ struct workqueue_struct;
 
 struct work_struct;
 typedef void (*work_func_t)(struct work_struct *work);
-void delayed_work_timer_fn(unsigned long __data);
+void delayed_work_timer_fn(struct timer_list *t);
 
 /*
  * The first word is the work queue pointer and the flags rolled into
@@ -175,8 +176,8 @@ struct execute_work {
 
 #define __DELAYED_WORK_INITIALIZER(n, f, tflags) {			\
 	.work = __WORK_INITIALIZER((n).work, (f)),			\
-	.timer = __TIMER_INITIALIZER(delayed_work_timer_fn,		\
-				     0, (unsigned long)&(n),		\
+	.timer = __TIMER_INITIALIZER((TIMER_FUNC_TYPE)delayed_work_timer_fn,\
+				     (TIMER_DATA_TYPE)&(n.timer),	\
 				     (tflags) | TIMER_IRQSAFE),		\
 	}
 
@@ -218,7 +219,7 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
 									\
 		__init_work((_work), _onstack);				\
 		(_work)->data = (atomic_long_t) WORK_DATA_INIT();	\
-		lockdep_init_map(&(_work)->lockdep_map, #_work, &__key, 0); \
+		lockdep_init_map(&(_work)->lockdep_map, "(work_completion)"#_work, &__key, 0); \
 		INIT_LIST_HEAD(&(_work)->entry);			\
 		(_work)->func = (_func);				\
 	} while (0)
@@ -241,8 +242,9 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
 #define __INIT_DELAYED_WORK(_work, _func, _tflags)			\
 	do {								\
 		INIT_WORK(&(_work)->work, (_func));			\
-		__setup_timer(&(_work)->timer, delayed_work_timer_fn,	\
-			      (unsigned long)(_work),			\
+		__setup_timer(&(_work)->timer,				\
+			      (TIMER_FUNC_TYPE)delayed_work_timer_fn,	\
+			      (TIMER_DATA_TYPE)&(_work)->timer,		\
 			      (_tflags) | TIMER_IRQSAFE);		\
 	} while (0)
 
@@ -250,8 +252,8 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
 	do {								\
 		INIT_WORK_ONSTACK(&(_work)->work, (_func));		\
 		__setup_timer_on_stack(&(_work)->timer,			\
-				       delayed_work_timer_fn,		\
-				       (unsigned long)(_work),		\
+				       (TIMER_FUNC_TYPE)delayed_work_timer_fn,\
+				       (TIMER_DATA_TYPE)&(_work)->timer,\
 				       (_tflags) | TIMER_IRQSAFE);	\
 	} while (0)
 
@@ -398,7 +400,7 @@ __alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
 	static struct lock_class_key __key;				\
 	const char *__lock_name;					\
 									\
-	__lock_name = #fmt#args;					\
+	__lock_name = "(wq_completion)"#fmt#args;			\
 									\
 	__alloc_workqueue_key((fmt), (flags), (max_active),		\
 			      &__key, __lock_name, ##args);		\
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index d5815794416c..f42d85631d17 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * include/linux/writeback.h
  */
@@ -42,28 +43,6 @@ enum writeback_sync_modes {
 };
 
 /*
- * why some writeback work was initiated
- */
-enum wb_reason {
-	WB_REASON_BACKGROUND,
-	WB_REASON_VMSCAN,
-	WB_REASON_SYNC,
-	WB_REASON_PERIODIC,
-	WB_REASON_LAPTOP_TIMER,
-	WB_REASON_FREE_MORE_MEM,
-	WB_REASON_FS_FREE_SPACE,
-	/*
-	 * There is no bdi forker thread any more and works are done
-	 * by emergency worker, however, this is TPs userland visible
-	 * and we'll be exposing exactly the same information,
-	 * so it has a mismatch name.
-	 */
-	WB_REASON_FORKER_THREAD,
-
-	WB_REASON_MAX,
-};
-
-/*
  * A control structure which tells the writeback code what to do.  These are
  * always on the stack, and hence need no locking.  They are always initialised
  * in a manner such that unspecified fields are set to zero.
@@ -185,11 +164,11 @@ struct bdi_writeback;
 void writeback_inodes_sb(struct super_block *, enum wb_reason reason);
 void writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
 							enum wb_reason reason);
-bool try_to_writeback_inodes_sb(struct super_block *, enum wb_reason reason);
-bool try_to_writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
-				   enum wb_reason reason);
+void try_to_writeback_inodes_sb(struct super_block *sb, enum wb_reason reason);
 void sync_inodes_sb(struct super_block *);
-void wakeup_flusher_threads(long nr_pages, enum wb_reason reason);
+void wakeup_flusher_threads(enum wb_reason reason);
+void wakeup_flusher_threads_bdi(struct backing_dev_info *bdi,
+				enum wb_reason reason);
 void inode_wait_for_writeback(struct inode *inode);
 
 /* writeback.h requires fs.h; it, too, is not included from here. */
diff --git a/include/linux/ww_mutex.h b/include/linux/ww_mutex.h
index 5dd9a7682227..39fda195bf78 100644
--- a/include/linux/ww_mutex.h
+++ b/include/linux/ww_mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Wound/Wait Mutexes: blocking mutual exclusion locks with deadlock avoidance
  *
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index e77605a0c8da..d70f77a4b62a 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   File: linux/xattr.h
 
diff --git a/include/linux/xxhash.h b/include/linux/xxhash.h
new file mode 100644
index 000000000000..9e1f42cb57e9
--- /dev/null
+++ b/include/linux/xxhash.h
@@ -0,0 +1,236 @@
+/*
+ * xxHash - Extremely Fast Hash algorithm
+ * Copyright (C) 2012-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following disclaimer
+ *     in the documentation and/or other materials provided with the
+ *     distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at:
+ * - xxHash homepage: http://cyan4973.github.io/xxHash/
+ * - xxHash source repository: https://github.com/Cyan4973/xxHash
+ */
+
+/*
+ * Notice extracted from xxHash homepage:
+ *
+ * xxHash is an extremely fast Hash algorithm, running at RAM speed limits.
+ * It also successfully passes all tests from the SMHasher suite.
+ *
+ * Comparison (single thread, Windows Seven 32 bits, using SMHasher on a Core 2
+ * Duo @3GHz)
+ *
+ * Name            Speed       Q.Score   Author
+ * xxHash          5.4 GB/s     10
+ * CrapWow         3.2 GB/s      2       Andrew
+ * MumurHash 3a    2.7 GB/s     10       Austin Appleby
+ * SpookyHash      2.0 GB/s     10       Bob Jenkins
+ * SBox            1.4 GB/s      9       Bret Mulvey
+ * Lookup3         1.2 GB/s      9       Bob Jenkins
+ * SuperFastHash   1.2 GB/s      1       Paul Hsieh
+ * CityHash64      1.05 GB/s    10       Pike & Alakuijala
+ * FNV             0.55 GB/s     5       Fowler, Noll, Vo
+ * CRC32           0.43 GB/s     9
+ * MD5-32          0.33 GB/s    10       Ronald L. Rivest
+ * SHA1-32         0.28 GB/s    10
+ *
+ * Q.Score is a measure of quality of the hash function.
+ * It depends on successfully passing SMHasher test set.
+ * 10 is a perfect score.
+ *
+ * A 64-bits version, named xxh64 offers much better speed,
+ * but for 64-bits applications only.
+ * Name     Speed on 64 bits    Speed on 32 bits
+ * xxh64       13.8 GB/s            1.9 GB/s
+ * xxh32        6.8 GB/s            6.0 GB/s
+ */
+
+#ifndef XXHASH_H
+#define XXHASH_H
+
+#include <linux/types.h>
+
+/*-****************************
+ * Simple Hash Functions
+ *****************************/
+
+/**
+ * xxh32() - calculate the 32-bit hash of the input with a given seed.
+ *
+ * @input:  The data to hash.
+ * @length: The length of the data to hash.
+ * @seed:   The seed can be used to alter the result predictably.
+ *
+ * Speed on Core 2 Duo @ 3 GHz (single thread, SMHasher benchmark) : 5.4 GB/s
+ *
+ * Return:  The 32-bit hash of the data.
+ */
+uint32_t xxh32(const void *input, size_t length, uint32_t seed);
+
+/**
+ * xxh64() - calculate the 64-bit hash of the input with a given seed.
+ *
+ * @input:  The data to hash.
+ * @length: The length of the data to hash.
+ * @seed:   The seed can be used to alter the result predictably.
+ *
+ * This function runs 2x faster on 64-bit systems, but slower on 32-bit systems.
+ *
+ * Return:  The 64-bit hash of the data.
+ */
+uint64_t xxh64(const void *input, size_t length, uint64_t seed);
+
+/*-****************************
+ * Streaming Hash Functions
+ *****************************/
+
+/*
+ * These definitions are only meant to allow allocation of XXH state
+ * statically, on stack, or in a struct for example.
+ * Do not use members directly.
+ */
+
+/**
+ * struct xxh32_state - private xxh32 state, do not use members directly
+ */
+struct xxh32_state {
+	uint32_t total_len_32;
+	uint32_t large_len;
+	uint32_t v1;
+	uint32_t v2;
+	uint32_t v3;
+	uint32_t v4;
+	uint32_t mem32[4];
+	uint32_t memsize;
+};
+
+/**
+ * struct xxh32_state - private xxh64 state, do not use members directly
+ */
+struct xxh64_state {
+	uint64_t total_len;
+	uint64_t v1;
+	uint64_t v2;
+	uint64_t v3;
+	uint64_t v4;
+	uint64_t mem64[4];
+	uint32_t memsize;
+};
+
+/**
+ * xxh32_reset() - reset the xxh32 state to start a new hashing operation
+ *
+ * @state: The xxh32 state to reset.
+ * @seed:  Initialize the hash state with this seed.
+ *
+ * Call this function on any xxh32_state to prepare for a new hashing operation.
+ */
+void xxh32_reset(struct xxh32_state *state, uint32_t seed);
+
+/**
+ * xxh32_update() - hash the data given and update the xxh32 state
+ *
+ * @state:  The xxh32 state to update.
+ * @input:  The data to hash.
+ * @length: The length of the data to hash.
+ *
+ * After calling xxh32_reset() call xxh32_update() as many times as necessary.
+ *
+ * Return:  Zero on success, otherwise an error code.
+ */
+int xxh32_update(struct xxh32_state *state, const void *input, size_t length);
+
+/**
+ * xxh32_digest() - produce the current xxh32 hash
+ *
+ * @state: Produce the current xxh32 hash of this state.
+ *
+ * A hash value can be produced at any time. It is still possible to continue
+ * inserting input into the hash state after a call to xxh32_digest(), and
+ * generate new hashes later on, by calling xxh32_digest() again.
+ *
+ * Return: The xxh32 hash stored in the state.
+ */
+uint32_t xxh32_digest(const struct xxh32_state *state);
+
+/**
+ * xxh64_reset() - reset the xxh64 state to start a new hashing operation
+ *
+ * @state: The xxh64 state to reset.
+ * @seed:  Initialize the hash state with this seed.
+ */
+void xxh64_reset(struct xxh64_state *state, uint64_t seed);
+
+/**
+ * xxh64_update() - hash the data given and update the xxh64 state
+ * @state:  The xxh64 state to update.
+ * @input:  The data to hash.
+ * @length: The length of the data to hash.
+ *
+ * After calling xxh64_reset() call xxh64_update() as many times as necessary.
+ *
+ * Return:  Zero on success, otherwise an error code.
+ */
+int xxh64_update(struct xxh64_state *state, const void *input, size_t length);
+
+/**
+ * xxh64_digest() - produce the current xxh64 hash
+ *
+ * @state: Produce the current xxh64 hash of this state.
+ *
+ * A hash value can be produced at any time. It is still possible to continue
+ * inserting input into the hash state after a call to xxh64_digest(), and
+ * generate new hashes later on, by calling xxh64_digest() again.
+ *
+ * Return: The xxh64 hash stored in the state.
+ */
+uint64_t xxh64_digest(const struct xxh64_state *state);
+
+/*-**************************
+ * Utils
+ ***************************/
+
+/**
+ * xxh32_copy_state() - copy the source state into the destination state
+ *
+ * @src: The source xxh32 state.
+ * @dst: The destination xxh32 state.
+ */
+void xxh32_copy_state(struct xxh32_state *dst, const struct xxh32_state *src);
+
+/**
+ * xxh64_copy_state() - copy the source state into the destination state
+ *
+ * @src: The source xxh64 state.
+ * @dst: The destination xxh64 state.
+ */
+void xxh64_copy_state(struct xxh64_state *dst, const struct xxh64_state *src);
+
+#endif /* XXHASH_H */
diff --git a/include/linux/z2_battery.h b/include/linux/z2_battery.h
index 7b9750404d22..eaba53ff387c 100644
--- a/include/linux/z2_battery.h
+++ b/include/linux/z2_battery.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_Z2_BATTERY_H
 #define _LINUX_Z2_BATTERY_H
 
diff --git a/include/linux/zbud.h b/include/linux/zbud.h
index e183a0a65ac1..b1eaf6e31735 100644
--- a/include/linux/zbud.h
+++ b/include/linux/zbud.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ZBUD_H_
 #define _ZBUD_H_
 
diff --git a/include/linux/zpool.h b/include/linux/zpool.h
index 2e97b7707dff..004ba807df96 100644
--- a/include/linux/zpool.h
+++ b/include/linux/zpool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * zpool memory storage api
  *
diff --git a/include/linux/zstd.h b/include/linux/zstd.h
new file mode 100644
index 000000000000..249575e2485f
--- /dev/null
+++ b/include/linux/zstd.h
@@ -0,0 +1,1157 @@
+/*
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+#ifndef ZSTD_H
+#define ZSTD_H
+
+/* ======   Dependency   ======*/
+#include <linux/types.h>   /* size_t */
+
+
+/*-*****************************************************************************
+ * Introduction
+ *
+ * zstd, short for Zstandard, is a fast lossless compression algorithm,
+ * targeting real-time compression scenarios at zlib-level and better
+ * compression ratios. The zstd compression library provides in-memory
+ * compression and decompression functions. The library supports compression
+ * levels from 1 up to ZSTD_maxCLevel() which is 22. Levels >= 20, labeled
+ * ultra, should be used with caution, as they require more memory.
+ * Compression can be done in:
+ *  - a single step, reusing a context (described as Explicit memory management)
+ *  - unbounded multiple steps (described as Streaming compression)
+ * The compression ratio achievable on small data can be highly improved using
+ * compression with a dictionary in:
+ *  - a single step (described as Simple dictionary API)
+ *  - a single step, reusing a dictionary (described as Fast dictionary API)
+ ******************************************************************************/
+
+/*======  Helper functions  ======*/
+
+/**
+ * enum ZSTD_ErrorCode - zstd error codes
+ *
+ * Functions that return size_t can be checked for errors using ZSTD_isError()
+ * and the ZSTD_ErrorCode can be extracted using ZSTD_getErrorCode().
+ */
+typedef enum {
+	ZSTD_error_no_error,
+	ZSTD_error_GENERIC,
+	ZSTD_error_prefix_unknown,
+	ZSTD_error_version_unsupported,
+	ZSTD_error_parameter_unknown,
+	ZSTD_error_frameParameter_unsupported,
+	ZSTD_error_frameParameter_unsupportedBy32bits,
+	ZSTD_error_frameParameter_windowTooLarge,
+	ZSTD_error_compressionParameter_unsupported,
+	ZSTD_error_init_missing,
+	ZSTD_error_memory_allocation,
+	ZSTD_error_stage_wrong,
+	ZSTD_error_dstSize_tooSmall,
+	ZSTD_error_srcSize_wrong,
+	ZSTD_error_corruption_detected,
+	ZSTD_error_checksum_wrong,
+	ZSTD_error_tableLog_tooLarge,
+	ZSTD_error_maxSymbolValue_tooLarge,
+	ZSTD_error_maxSymbolValue_tooSmall,
+	ZSTD_error_dictionary_corrupted,
+	ZSTD_error_dictionary_wrong,
+	ZSTD_error_dictionaryCreation_failed,
+	ZSTD_error_maxCode
+} ZSTD_ErrorCode;
+
+/**
+ * ZSTD_maxCLevel() - maximum compression level available
+ *
+ * Return: Maximum compression level available.
+ */
+int ZSTD_maxCLevel(void);
+/**
+ * ZSTD_compressBound() - maximum compressed size in worst case scenario
+ * @srcSize: The size of the data to compress.
+ *
+ * Return:   The maximum compressed size in the worst case scenario.
+ */
+size_t ZSTD_compressBound(size_t srcSize);
+/**
+ * ZSTD_isError() - tells if a size_t function result is an error code
+ * @code:  The function result to check for error.
+ *
+ * Return: Non-zero iff the code is an error.
+ */
+static __attribute__((unused)) unsigned int ZSTD_isError(size_t code)
+{
+	return code > (size_t)-ZSTD_error_maxCode;
+}
+/**
+ * ZSTD_getErrorCode() - translates an error function result to a ZSTD_ErrorCode
+ * @functionResult: The result of a function for which ZSTD_isError() is true.
+ *
+ * Return:          The ZSTD_ErrorCode corresponding to the functionResult or 0
+ *                  if the functionResult isn't an error.
+ */
+static __attribute__((unused)) ZSTD_ErrorCode ZSTD_getErrorCode(
+	size_t functionResult)
+{
+	if (!ZSTD_isError(functionResult))
+		return (ZSTD_ErrorCode)0;
+	return (ZSTD_ErrorCode)(0 - functionResult);
+}
+
+/**
+ * enum ZSTD_strategy - zstd compression search strategy
+ *
+ * From faster to stronger.
+ */
+typedef enum {
+	ZSTD_fast,
+	ZSTD_dfast,
+	ZSTD_greedy,
+	ZSTD_lazy,
+	ZSTD_lazy2,
+	ZSTD_btlazy2,
+	ZSTD_btopt,
+	ZSTD_btopt2
+} ZSTD_strategy;
+
+/**
+ * struct ZSTD_compressionParameters - zstd compression parameters
+ * @windowLog:    Log of the largest match distance. Larger means more
+ *                compression, and more memory needed during decompression.
+ * @chainLog:     Fully searched segment. Larger means more compression, slower,
+ *                and more memory (useless for fast).
+ * @hashLog:      Dispatch table. Larger means more compression,
+ *                slower, and more memory.
+ * @searchLog:    Number of searches. Larger means more compression and slower.
+ * @searchLength: Match length searched. Larger means faster decompression,
+ *                sometimes less compression.
+ * @targetLength: Acceptable match size for optimal parser (only). Larger means
+ *                more compression, and slower.
+ * @strategy:     The zstd compression strategy.
+ */
+typedef struct {
+	unsigned int windowLog;
+	unsigned int chainLog;
+	unsigned int hashLog;
+	unsigned int searchLog;
+	unsigned int searchLength;
+	unsigned int targetLength;
+	ZSTD_strategy strategy;
+} ZSTD_compressionParameters;
+
+/**
+ * struct ZSTD_frameParameters - zstd frame parameters
+ * @contentSizeFlag: Controls whether content size will be present in the frame
+ *                   header (when known).
+ * @checksumFlag:    Controls whether a 32-bit checksum is generated at the end
+ *                   of the frame for error detection.
+ * @noDictIDFlag:    Controls whether dictID will be saved into the frame header
+ *                   when using dictionary compression.
+ *
+ * The default value is all fields set to 0.
+ */
+typedef struct {
+	unsigned int contentSizeFlag;
+	unsigned int checksumFlag;
+	unsigned int noDictIDFlag;
+} ZSTD_frameParameters;
+
+/**
+ * struct ZSTD_parameters - zstd parameters
+ * @cParams: The compression parameters.
+ * @fParams: The frame parameters.
+ */
+typedef struct {
+	ZSTD_compressionParameters cParams;
+	ZSTD_frameParameters fParams;
+} ZSTD_parameters;
+
+/**
+ * ZSTD_getCParams() - returns ZSTD_compressionParameters for selected level
+ * @compressionLevel: The compression level from 1 to ZSTD_maxCLevel().
+ * @estimatedSrcSize: The estimated source size to compress or 0 if unknown.
+ * @dictSize:         The dictionary size or 0 if a dictionary isn't being used.
+ *
+ * Return:            The selected ZSTD_compressionParameters.
+ */
+ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel,
+	unsigned long long estimatedSrcSize, size_t dictSize);
+
+/**
+ * ZSTD_getParams() - returns ZSTD_parameters for selected level
+ * @compressionLevel: The compression level from 1 to ZSTD_maxCLevel().
+ * @estimatedSrcSize: The estimated source size to compress or 0 if unknown.
+ * @dictSize:         The dictionary size or 0 if a dictionary isn't being used.
+ *
+ * The same as ZSTD_getCParams() except also selects the default frame
+ * parameters (all zero).
+ *
+ * Return:            The selected ZSTD_parameters.
+ */
+ZSTD_parameters ZSTD_getParams(int compressionLevel,
+	unsigned long long estimatedSrcSize, size_t dictSize);
+
+/*-*************************************
+ * Explicit memory management
+ **************************************/
+
+/**
+ * ZSTD_CCtxWorkspaceBound() - amount of memory needed to initialize a ZSTD_CCtx
+ * @cParams: The compression parameters to be used for compression.
+ *
+ * If multiple compression parameters might be used, the caller must call
+ * ZSTD_CCtxWorkspaceBound() for each set of parameters and use the maximum
+ * size.
+ *
+ * Return:   A lower bound on the size of the workspace that is passed to
+ *           ZSTD_initCCtx().
+ */
+size_t ZSTD_CCtxWorkspaceBound(ZSTD_compressionParameters cParams);
+
+/**
+ * struct ZSTD_CCtx - the zstd compression context
+ *
+ * When compressing many times it is recommended to allocate a context just once
+ * and reuse it for each successive compression operation.
+ */
+typedef struct ZSTD_CCtx_s ZSTD_CCtx;
+/**
+ * ZSTD_initCCtx() - initialize a zstd compression context
+ * @workspace:     The workspace to emplace the context into. It must outlive
+ *                 the returned context.
+ * @workspaceSize: The size of workspace. Use ZSTD_CCtxWorkspaceBound() to
+ *                 determine how large the workspace must be.
+ *
+ * Return:         A compression context emplaced into workspace.
+ */
+ZSTD_CCtx *ZSTD_initCCtx(void *workspace, size_t workspaceSize);
+
+/**
+ * ZSTD_compressCCtx() - compress src into dst
+ * @ctx:         The context. Must have been initialized with a workspace at
+ *               least as large as ZSTD_CCtxWorkspaceBound(params.cParams).
+ * @dst:         The buffer to compress src into.
+ * @dstCapacity: The size of the destination buffer. May be any size, but
+ *               ZSTD_compressBound(srcSize) is guaranteed to be large enough.
+ * @src:         The data to compress.
+ * @srcSize:     The size of the data to compress.
+ * @params:      The parameters to use for compression. See ZSTD_getParams().
+ *
+ * Return:       The compressed size or an error, which can be checked using
+ *               ZSTD_isError().
+ */
+size_t ZSTD_compressCCtx(ZSTD_CCtx *ctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize, ZSTD_parameters params);
+
+/**
+ * ZSTD_DCtxWorkspaceBound() - amount of memory needed to initialize a ZSTD_DCtx
+ *
+ * Return: A lower bound on the size of the workspace that is passed to
+ *         ZSTD_initDCtx().
+ */
+size_t ZSTD_DCtxWorkspaceBound(void);
+
+/**
+ * struct ZSTD_DCtx - the zstd decompression context
+ *
+ * When decompressing many times it is recommended to allocate a context just
+ * once and reuse it for each successive decompression operation.
+ */
+typedef struct ZSTD_DCtx_s ZSTD_DCtx;
+/**
+ * ZSTD_initDCtx() - initialize a zstd decompression context
+ * @workspace:     The workspace to emplace the context into. It must outlive
+ *                 the returned context.
+ * @workspaceSize: The size of workspace. Use ZSTD_DCtxWorkspaceBound() to
+ *                 determine how large the workspace must be.
+ *
+ * Return:         A decompression context emplaced into workspace.
+ */
+ZSTD_DCtx *ZSTD_initDCtx(void *workspace, size_t workspaceSize);
+
+/**
+ * ZSTD_decompressDCtx() - decompress zstd compressed src into dst
+ * @ctx:         The decompression context.
+ * @dst:         The buffer to decompress src into.
+ * @dstCapacity: The size of the destination buffer. Must be at least as large
+ *               as the decompressed size. If the caller cannot upper bound the
+ *               decompressed size, then it's better to use the streaming API.
+ * @src:         The zstd compressed data to decompress. Multiple concatenated
+ *               frames and skippable frames are allowed.
+ * @srcSize:     The exact size of the data to decompress.
+ *
+ * Return:       The decompressed size or an error, which can be checked using
+ *               ZSTD_isError().
+ */
+size_t ZSTD_decompressDCtx(ZSTD_DCtx *ctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize);
+
+/*-************************
+ * Simple dictionary API
+ **************************/
+
+/**
+ * ZSTD_compress_usingDict() - compress src into dst using a dictionary
+ * @ctx:         The context. Must have been initialized with a workspace at
+ *               least as large as ZSTD_CCtxWorkspaceBound(params.cParams).
+ * @dst:         The buffer to compress src into.
+ * @dstCapacity: The size of the destination buffer. May be any size, but
+ *               ZSTD_compressBound(srcSize) is guaranteed to be large enough.
+ * @src:         The data to compress.
+ * @srcSize:     The size of the data to compress.
+ * @dict:        The dictionary to use for compression.
+ * @dictSize:    The size of the dictionary.
+ * @params:      The parameters to use for compression. See ZSTD_getParams().
+ *
+ * Compression using a predefined dictionary. The same dictionary must be used
+ * during decompression.
+ *
+ * Return:       The compressed size or an error, which can be checked using
+ *               ZSTD_isError().
+ */
+size_t ZSTD_compress_usingDict(ZSTD_CCtx *ctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize, const void *dict, size_t dictSize,
+	ZSTD_parameters params);
+
+/**
+ * ZSTD_decompress_usingDict() - decompress src into dst using a dictionary
+ * @ctx:         The decompression context.
+ * @dst:         The buffer to decompress src into.
+ * @dstCapacity: The size of the destination buffer. Must be at least as large
+ *               as the decompressed size. If the caller cannot upper bound the
+ *               decompressed size, then it's better to use the streaming API.
+ * @src:         The zstd compressed data to decompress. Multiple concatenated
+ *               frames and skippable frames are allowed.
+ * @srcSize:     The exact size of the data to decompress.
+ * @dict:        The dictionary to use for decompression. The same dictionary
+ *               must've been used to compress the data.
+ * @dictSize:    The size of the dictionary.
+ *
+ * Return:       The decompressed size or an error, which can be checked using
+ *               ZSTD_isError().
+ */
+size_t ZSTD_decompress_usingDict(ZSTD_DCtx *ctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize, const void *dict, size_t dictSize);
+
+/*-**************************
+ * Fast dictionary API
+ ***************************/
+
+/**
+ * ZSTD_CDictWorkspaceBound() - memory needed to initialize a ZSTD_CDict
+ * @cParams: The compression parameters to be used for compression.
+ *
+ * Return:   A lower bound on the size of the workspace that is passed to
+ *           ZSTD_initCDict().
+ */
+size_t ZSTD_CDictWorkspaceBound(ZSTD_compressionParameters cParams);
+
+/**
+ * struct ZSTD_CDict - a digested dictionary to be used for compression
+ */
+typedef struct ZSTD_CDict_s ZSTD_CDict;
+
+/**
+ * ZSTD_initCDict() - initialize a digested dictionary for compression
+ * @dictBuffer:    The dictionary to digest. The buffer is referenced by the
+ *                 ZSTD_CDict so it must outlive the returned ZSTD_CDict.
+ * @dictSize:      The size of the dictionary.
+ * @params:        The parameters to use for compression. See ZSTD_getParams().
+ * @workspace:     The workspace. It must outlive the returned ZSTD_CDict.
+ * @workspaceSize: The workspace size. Must be at least
+ *                 ZSTD_CDictWorkspaceBound(params.cParams).
+ *
+ * When compressing multiple messages / blocks with the same dictionary it is
+ * recommended to load it just once. The ZSTD_CDict merely references the
+ * dictBuffer, so it must outlive the returned ZSTD_CDict.
+ *
+ * Return:         The digested dictionary emplaced into workspace.
+ */
+ZSTD_CDict *ZSTD_initCDict(const void *dictBuffer, size_t dictSize,
+	ZSTD_parameters params, void *workspace, size_t workspaceSize);
+
+/**
+ * ZSTD_compress_usingCDict() - compress src into dst using a ZSTD_CDict
+ * @ctx:         The context. Must have been initialized with a workspace at
+ *               least as large as ZSTD_CCtxWorkspaceBound(cParams) where
+ *               cParams are the compression parameters used to initialize the
+ *               cdict.
+ * @dst:         The buffer to compress src into.
+ * @dstCapacity: The size of the destination buffer. May be any size, but
+ *               ZSTD_compressBound(srcSize) is guaranteed to be large enough.
+ * @src:         The data to compress.
+ * @srcSize:     The size of the data to compress.
+ * @cdict:       The digested dictionary to use for compression.
+ * @params:      The parameters to use for compression. See ZSTD_getParams().
+ *
+ * Compression using a digested dictionary. The same dictionary must be used
+ * during decompression.
+ *
+ * Return:       The compressed size or an error, which can be checked using
+ *               ZSTD_isError().
+ */
+size_t ZSTD_compress_usingCDict(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize, const ZSTD_CDict *cdict);
+
+
+/**
+ * ZSTD_DDictWorkspaceBound() - memory needed to initialize a ZSTD_DDict
+ *
+ * Return:  A lower bound on the size of the workspace that is passed to
+ *          ZSTD_initDDict().
+ */
+size_t ZSTD_DDictWorkspaceBound(void);
+
+/**
+ * struct ZSTD_DDict - a digested dictionary to be used for decompression
+ */
+typedef struct ZSTD_DDict_s ZSTD_DDict;
+
+/**
+ * ZSTD_initDDict() - initialize a digested dictionary for decompression
+ * @dictBuffer:    The dictionary to digest. The buffer is referenced by the
+ *                 ZSTD_DDict so it must outlive the returned ZSTD_DDict.
+ * @dictSize:      The size of the dictionary.
+ * @workspace:     The workspace. It must outlive the returned ZSTD_DDict.
+ * @workspaceSize: The workspace size. Must be at least
+ *                 ZSTD_DDictWorkspaceBound().
+ *
+ * When decompressing multiple messages / blocks with the same dictionary it is
+ * recommended to load it just once. The ZSTD_DDict merely references the
+ * dictBuffer, so it must outlive the returned ZSTD_DDict.
+ *
+ * Return:         The digested dictionary emplaced into workspace.
+ */
+ZSTD_DDict *ZSTD_initDDict(const void *dictBuffer, size_t dictSize,
+	void *workspace, size_t workspaceSize);
+
+/**
+ * ZSTD_decompress_usingDDict() - decompress src into dst using a ZSTD_DDict
+ * @ctx:         The decompression context.
+ * @dst:         The buffer to decompress src into.
+ * @dstCapacity: The size of the destination buffer. Must be at least as large
+ *               as the decompressed size. If the caller cannot upper bound the
+ *               decompressed size, then it's better to use the streaming API.
+ * @src:         The zstd compressed data to decompress. Multiple concatenated
+ *               frames and skippable frames are allowed.
+ * @srcSize:     The exact size of the data to decompress.
+ * @ddict:       The digested dictionary to use for decompression. The same
+ *               dictionary must've been used to compress the data.
+ *
+ * Return:       The decompressed size or an error, which can be checked using
+ *               ZSTD_isError().
+ */
+size_t ZSTD_decompress_usingDDict(ZSTD_DCtx *dctx, void *dst,
+	size_t dstCapacity, const void *src, size_t srcSize,
+	const ZSTD_DDict *ddict);
+
+
+/*-**************************
+ * Streaming
+ ***************************/
+
+/**
+ * struct ZSTD_inBuffer - input buffer for streaming
+ * @src:  Start of the input buffer.
+ * @size: Size of the input buffer.
+ * @pos:  Position where reading stopped. Will be updated.
+ *        Necessarily 0 <= pos <= size.
+ */
+typedef struct ZSTD_inBuffer_s {
+	const void *src;
+	size_t size;
+	size_t pos;
+} ZSTD_inBuffer;
+
+/**
+ * struct ZSTD_outBuffer - output buffer for streaming
+ * @dst:  Start of the output buffer.
+ * @size: Size of the output buffer.
+ * @pos:  Position where writing stopped. Will be updated.
+ *        Necessarily 0 <= pos <= size.
+ */
+typedef struct ZSTD_outBuffer_s {
+	void *dst;
+	size_t size;
+	size_t pos;
+} ZSTD_outBuffer;
+
+
+
+/*-*****************************************************************************
+ * Streaming compression - HowTo
+ *
+ * A ZSTD_CStream object is required to track streaming operation.
+ * Use ZSTD_initCStream() to initialize a ZSTD_CStream object.
+ * ZSTD_CStream objects can be reused multiple times on consecutive compression
+ * operations. It is recommended to re-use ZSTD_CStream in situations where many
+ * streaming operations will be achieved consecutively. Use one separate
+ * ZSTD_CStream per thread for parallel execution.
+ *
+ * Use ZSTD_compressStream() repetitively to consume input stream.
+ * The function will automatically update both `pos` fields.
+ * Note that it may not consume the entire input, in which case `pos < size`,
+ * and it's up to the caller to present again remaining data.
+ * It returns a hint for the preferred number of bytes to use as an input for
+ * the next function call.
+ *
+ * At any moment, it's possible to flush whatever data remains within internal
+ * buffer, using ZSTD_flushStream(). `output->pos` will be updated. There might
+ * still be some content left within the internal buffer if `output->size` is
+ * too small. It returns the number of bytes left in the internal buffer and
+ * must be called until it returns 0.
+ *
+ * ZSTD_endStream() instructs to finish a frame. It will perform a flush and
+ * write frame epilogue. The epilogue is required for decoders to consider a
+ * frame completed. Similar to ZSTD_flushStream(), it may not be able to flush
+ * the full content if `output->size` is too small. In which case, call again
+ * ZSTD_endStream() to complete the flush. It returns the number of bytes left
+ * in the internal buffer and must be called until it returns 0.
+ ******************************************************************************/
+
+/**
+ * ZSTD_CStreamWorkspaceBound() - memory needed to initialize a ZSTD_CStream
+ * @cParams: The compression parameters to be used for compression.
+ *
+ * Return:   A lower bound on the size of the workspace that is passed to
+ *           ZSTD_initCStream() and ZSTD_initCStream_usingCDict().
+ */
+size_t ZSTD_CStreamWorkspaceBound(ZSTD_compressionParameters cParams);
+
+/**
+ * struct ZSTD_CStream - the zstd streaming compression context
+ */
+typedef struct ZSTD_CStream_s ZSTD_CStream;
+
+/*===== ZSTD_CStream management functions =====*/
+/**
+ * ZSTD_initCStream() - initialize a zstd streaming compression context
+ * @params:         The zstd compression parameters.
+ * @pledgedSrcSize: If params.fParams.contentSizeFlag == 1 then the caller must
+ *                  pass the source size (zero means empty source). Otherwise,
+ *                  the caller may optionally pass the source size, or zero if
+ *                  unknown.
+ * @workspace:      The workspace to emplace the context into. It must outlive
+ *                  the returned context.
+ * @workspaceSize:  The size of workspace.
+ *                  Use ZSTD_CStreamWorkspaceBound(params.cParams) to determine
+ *                  how large the workspace must be.
+ *
+ * Return:          The zstd streaming compression context.
+ */
+ZSTD_CStream *ZSTD_initCStream(ZSTD_parameters params,
+	unsigned long long pledgedSrcSize, void *workspace,
+	size_t workspaceSize);
+
+/**
+ * ZSTD_initCStream_usingCDict() - initialize a streaming compression context
+ * @cdict:          The digested dictionary to use for compression.
+ * @pledgedSrcSize: Optionally the source size, or zero if unknown.
+ * @workspace:      The workspace to emplace the context into. It must outlive
+ *                  the returned context.
+ * @workspaceSize:  The size of workspace. Call ZSTD_CStreamWorkspaceBound()
+ *                  with the cParams used to initialize the cdict to determine
+ *                  how large the workspace must be.
+ *
+ * Return:          The zstd streaming compression context.
+ */
+ZSTD_CStream *ZSTD_initCStream_usingCDict(const ZSTD_CDict *cdict,
+	unsigned long long pledgedSrcSize, void *workspace,
+	size_t workspaceSize);
+
+/*===== Streaming compression functions =====*/
+/**
+ * ZSTD_resetCStream() - reset the context using parameters from creation
+ * @zcs:            The zstd streaming compression context to reset.
+ * @pledgedSrcSize: Optionally the source size, or zero if unknown.
+ *
+ * Resets the context using the parameters from creation. Skips dictionary
+ * loading, since it can be reused. If `pledgedSrcSize` is non-zero the frame
+ * content size is always written into the frame header.
+ *
+ * Return:          Zero or an error, which can be checked using ZSTD_isError().
+ */
+size_t ZSTD_resetCStream(ZSTD_CStream *zcs, unsigned long long pledgedSrcSize);
+/**
+ * ZSTD_compressStream() - streaming compress some of input into output
+ * @zcs:    The zstd streaming compression context.
+ * @output: Destination buffer. `output->pos` is updated to indicate how much
+ *          compressed data was written.
+ * @input:  Source buffer. `input->pos` is updated to indicate how much data was
+ *          read. Note that it may not consume the entire input, in which case
+ *          `input->pos < input->size`, and it's up to the caller to present
+ *          remaining data again.
+ *
+ * The `input` and `output` buffers may be any size. Guaranteed to make some
+ * forward progress if `input` and `output` are not empty.
+ *
+ * Return:  A hint for the number of bytes to use as the input for the next
+ *          function call or an error, which can be checked using
+ *          ZSTD_isError().
+ */
+size_t ZSTD_compressStream(ZSTD_CStream *zcs, ZSTD_outBuffer *output,
+	ZSTD_inBuffer *input);
+/**
+ * ZSTD_flushStream() - flush internal buffers into output
+ * @zcs:    The zstd streaming compression context.
+ * @output: Destination buffer. `output->pos` is updated to indicate how much
+ *          compressed data was written.
+ *
+ * ZSTD_flushStream() must be called until it returns 0, meaning all the data
+ * has been flushed. Since ZSTD_flushStream() causes a block to be ended,
+ * calling it too often will degrade the compression ratio.
+ *
+ * Return:  The number of bytes still present within internal buffers or an
+ *          error, which can be checked using ZSTD_isError().
+ */
+size_t ZSTD_flushStream(ZSTD_CStream *zcs, ZSTD_outBuffer *output);
+/**
+ * ZSTD_endStream() - flush internal buffers into output and end the frame
+ * @zcs:    The zstd streaming compression context.
+ * @output: Destination buffer. `output->pos` is updated to indicate how much
+ *          compressed data was written.
+ *
+ * ZSTD_endStream() must be called until it returns 0, meaning all the data has
+ * been flushed and the frame epilogue has been written.
+ *
+ * Return:  The number of bytes still present within internal buffers or an
+ *          error, which can be checked using ZSTD_isError().
+ */
+size_t ZSTD_endStream(ZSTD_CStream *zcs, ZSTD_outBuffer *output);
+
+/**
+ * ZSTD_CStreamInSize() - recommended size for the input buffer
+ *
+ * Return: The recommended size for the input buffer.
+ */
+size_t ZSTD_CStreamInSize(void);
+/**
+ * ZSTD_CStreamOutSize() - recommended size for the output buffer
+ *
+ * When the output buffer is at least this large, it is guaranteed to be large
+ * enough to flush at least one complete compressed block.
+ *
+ * Return: The recommended size for the output buffer.
+ */
+size_t ZSTD_CStreamOutSize(void);
+
+
+
+/*-*****************************************************************************
+ * Streaming decompression - HowTo
+ *
+ * A ZSTD_DStream object is required to track streaming operations.
+ * Use ZSTD_initDStream() to initialize a ZSTD_DStream object.
+ * ZSTD_DStream objects can be re-used multiple times.
+ *
+ * Use ZSTD_decompressStream() repetitively to consume your input.
+ * The function will update both `pos` fields.
+ * If `input->pos < input->size`, some input has not been consumed.
+ * It's up to the caller to present again remaining data.
+ * If `output->pos < output->size`, decoder has flushed everything it could.
+ * Returns 0 iff a frame is completely decoded and fully flushed.
+ * Otherwise it returns a suggested next input size that will never load more
+ * than the current frame.
+ ******************************************************************************/
+
+/**
+ * ZSTD_DStreamWorkspaceBound() - memory needed to initialize a ZSTD_DStream
+ * @maxWindowSize: The maximum window size allowed for compressed frames.
+ *
+ * Return:         A lower bound on the size of the workspace that is passed to
+ *                 ZSTD_initDStream() and ZSTD_initDStream_usingDDict().
+ */
+size_t ZSTD_DStreamWorkspaceBound(size_t maxWindowSize);
+
+/**
+ * struct ZSTD_DStream - the zstd streaming decompression context
+ */
+typedef struct ZSTD_DStream_s ZSTD_DStream;
+/*===== ZSTD_DStream management functions =====*/
+/**
+ * ZSTD_initDStream() - initialize a zstd streaming decompression context
+ * @maxWindowSize: The maximum window size allowed for compressed frames.
+ * @workspace:     The workspace to emplace the context into. It must outlive
+ *                 the returned context.
+ * @workspaceSize: The size of workspace.
+ *                 Use ZSTD_DStreamWorkspaceBound(maxWindowSize) to determine
+ *                 how large the workspace must be.
+ *
+ * Return:         The zstd streaming decompression context.
+ */
+ZSTD_DStream *ZSTD_initDStream(size_t maxWindowSize, void *workspace,
+	size_t workspaceSize);
+/**
+ * ZSTD_initDStream_usingDDict() - initialize streaming decompression context
+ * @maxWindowSize: The maximum window size allowed for compressed frames.
+ * @ddict:         The digested dictionary to use for decompression.
+ * @workspace:     The workspace to emplace the context into. It must outlive
+ *                 the returned context.
+ * @workspaceSize: The size of workspace.
+ *                 Use ZSTD_DStreamWorkspaceBound(maxWindowSize) to determine
+ *                 how large the workspace must be.
+ *
+ * Return:         The zstd streaming decompression context.
+ */
+ZSTD_DStream *ZSTD_initDStream_usingDDict(size_t maxWindowSize,
+	const ZSTD_DDict *ddict, void *workspace, size_t workspaceSize);
+
+/*===== Streaming decompression functions =====*/
+/**
+ * ZSTD_resetDStream() - reset the context using parameters from creation
+ * @zds:   The zstd streaming decompression context to reset.
+ *
+ * Resets the context using the parameters from creation. Skips dictionary
+ * loading, since it can be reused.
+ *
+ * Return: Zero or an error, which can be checked using ZSTD_isError().
+ */
+size_t ZSTD_resetDStream(ZSTD_DStream *zds);
+/**
+ * ZSTD_decompressStream() - streaming decompress some of input into output
+ * @zds:    The zstd streaming decompression context.
+ * @output: Destination buffer. `output.pos` is updated to indicate how much
+ *          decompressed data was written.
+ * @input:  Source buffer. `input.pos` is updated to indicate how much data was
+ *          read. Note that it may not consume the entire input, in which case
+ *          `input.pos < input.size`, and it's up to the caller to present
+ *          remaining data again.
+ *
+ * The `input` and `output` buffers may be any size. Guaranteed to make some
+ * forward progress if `input` and `output` are not empty.
+ * ZSTD_decompressStream() will not consume the last byte of the frame until
+ * the entire frame is flushed.
+ *
+ * Return:  Returns 0 iff a frame is completely decoded and fully flushed.
+ *          Otherwise returns a hint for the number of bytes to use as the input
+ *          for the next function call or an error, which can be checked using
+ *          ZSTD_isError(). The size hint will never load more than the frame.
+ */
+size_t ZSTD_decompressStream(ZSTD_DStream *zds, ZSTD_outBuffer *output,
+	ZSTD_inBuffer *input);
+
+/**
+ * ZSTD_DStreamInSize() - recommended size for the input buffer
+ *
+ * Return: The recommended size for the input buffer.
+ */
+size_t ZSTD_DStreamInSize(void);
+/**
+ * ZSTD_DStreamOutSize() - recommended size for the output buffer
+ *
+ * When the output buffer is at least this large, it is guaranteed to be large
+ * enough to flush at least one complete decompressed block.
+ *
+ * Return: The recommended size for the output buffer.
+ */
+size_t ZSTD_DStreamOutSize(void);
+
+
+/* --- Constants ---*/
+#define ZSTD_MAGICNUMBER            0xFD2FB528   /* >= v0.8.0 */
+#define ZSTD_MAGIC_SKIPPABLE_START  0x184D2A50U
+
+#define ZSTD_CONTENTSIZE_UNKNOWN (0ULL - 1)
+#define ZSTD_CONTENTSIZE_ERROR   (0ULL - 2)
+
+#define ZSTD_WINDOWLOG_MAX_32  27
+#define ZSTD_WINDOWLOG_MAX_64  27
+#define ZSTD_WINDOWLOG_MAX \
+	((unsigned int)(sizeof(size_t) == 4 \
+		? ZSTD_WINDOWLOG_MAX_32 \
+		: ZSTD_WINDOWLOG_MAX_64))
+#define ZSTD_WINDOWLOG_MIN 10
+#define ZSTD_HASHLOG_MAX ZSTD_WINDOWLOG_MAX
+#define ZSTD_HASHLOG_MIN        6
+#define ZSTD_CHAINLOG_MAX     (ZSTD_WINDOWLOG_MAX+1)
+#define ZSTD_CHAINLOG_MIN      ZSTD_HASHLOG_MIN
+#define ZSTD_HASHLOG3_MAX      17
+#define ZSTD_SEARCHLOG_MAX    (ZSTD_WINDOWLOG_MAX-1)
+#define ZSTD_SEARCHLOG_MIN      1
+/* only for ZSTD_fast, other strategies are limited to 6 */
+#define ZSTD_SEARCHLENGTH_MAX   7
+/* only for ZSTD_btopt, other strategies are limited to 4 */
+#define ZSTD_SEARCHLENGTH_MIN   3
+#define ZSTD_TARGETLENGTH_MIN   4
+#define ZSTD_TARGETLENGTH_MAX 999
+
+/* for static allocation */
+#define ZSTD_FRAMEHEADERSIZE_MAX 18
+#define ZSTD_FRAMEHEADERSIZE_MIN  6
+static const size_t ZSTD_frameHeaderSize_prefix = 5;
+static const size_t ZSTD_frameHeaderSize_min = ZSTD_FRAMEHEADERSIZE_MIN;
+static const size_t ZSTD_frameHeaderSize_max = ZSTD_FRAMEHEADERSIZE_MAX;
+/* magic number + skippable frame length */
+static const size_t ZSTD_skippableHeaderSize = 8;
+
+
+/*-*************************************
+ * Compressed size functions
+ **************************************/
+
+/**
+ * ZSTD_findFrameCompressedSize() - returns the size of a compressed frame
+ * @src:     Source buffer. It should point to the start of a zstd encoded frame
+ *           or a skippable frame.
+ * @srcSize: The size of the source buffer. It must be at least as large as the
+ *           size of the frame.
+ *
+ * Return:   The compressed size of the frame pointed to by `src` or an error,
+ *           which can be check with ZSTD_isError().
+ *           Suitable to pass to ZSTD_decompress() or similar functions.
+ */
+size_t ZSTD_findFrameCompressedSize(const void *src, size_t srcSize);
+
+/*-*************************************
+ * Decompressed size functions
+ **************************************/
+/**
+ * ZSTD_getFrameContentSize() - returns the content size in a zstd frame header
+ * @src:     It should point to the start of a zstd encoded frame.
+ * @srcSize: The size of the source buffer. It must be at least as large as the
+ *           frame header. `ZSTD_frameHeaderSize_max` is always large enough.
+ *
+ * Return:   The frame content size stored in the frame header if known.
+ *           `ZSTD_CONTENTSIZE_UNKNOWN` if the content size isn't stored in the
+ *           frame header. `ZSTD_CONTENTSIZE_ERROR` on invalid input.
+ */
+unsigned long long ZSTD_getFrameContentSize(const void *src, size_t srcSize);
+
+/**
+ * ZSTD_findDecompressedSize() - returns decompressed size of a series of frames
+ * @src:     It should point to the start of a series of zstd encoded and/or
+ *           skippable frames.
+ * @srcSize: The exact size of the series of frames.
+ *
+ * If any zstd encoded frame in the series doesn't have the frame content size
+ * set, `ZSTD_CONTENTSIZE_UNKNOWN` is returned. But frame content size is always
+ * set when using ZSTD_compress(). The decompressed size can be very large.
+ * If the source is untrusted, the decompressed size could be wrong or
+ * intentionally modified. Always ensure the result fits within the
+ * application's authorized limits. ZSTD_findDecompressedSize() handles multiple
+ * frames, and so it must traverse the input to read each frame header. This is
+ * efficient as most of the data is skipped, however it does mean that all frame
+ * data must be present and valid.
+ *
+ * Return:   Decompressed size of all the data contained in the frames if known.
+ *           `ZSTD_CONTENTSIZE_UNKNOWN` if the decompressed size is unknown.
+ *           `ZSTD_CONTENTSIZE_ERROR` if an error occurred.
+ */
+unsigned long long ZSTD_findDecompressedSize(const void *src, size_t srcSize);
+
+/*-*************************************
+ * Advanced compression functions
+ **************************************/
+/**
+ * ZSTD_checkCParams() - ensure parameter values remain within authorized range
+ * @cParams: The zstd compression parameters.
+ *
+ * Return:   Zero or an error, which can be checked using ZSTD_isError().
+ */
+size_t ZSTD_checkCParams(ZSTD_compressionParameters cParams);
+
+/**
+ * ZSTD_adjustCParams() - optimize parameters for a given srcSize and dictSize
+ * @srcSize:  Optionally the estimated source size, or zero if unknown.
+ * @dictSize: Optionally the estimated dictionary size, or zero if unknown.
+ *
+ * Return:    The optimized parameters.
+ */
+ZSTD_compressionParameters ZSTD_adjustCParams(
+	ZSTD_compressionParameters cParams, unsigned long long srcSize,
+	size_t dictSize);
+
+/*--- Advanced decompression functions ---*/
+
+/**
+ * ZSTD_isFrame() - returns true iff the buffer starts with a valid frame
+ * @buffer: The source buffer to check.
+ * @size:   The size of the source buffer, must be at least 4 bytes.
+ *
+ * Return: True iff the buffer starts with a zstd or skippable frame identifier.
+ */
+unsigned int ZSTD_isFrame(const void *buffer, size_t size);
+
+/**
+ * ZSTD_getDictID_fromDict() - returns the dictionary id stored in a dictionary
+ * @dict:     The dictionary buffer.
+ * @dictSize: The size of the dictionary buffer.
+ *
+ * Return:    The dictionary id stored within the dictionary or 0 if the
+ *            dictionary is not a zstd dictionary. If it returns 0 the
+ *            dictionary can still be loaded as a content-only dictionary.
+ */
+unsigned int ZSTD_getDictID_fromDict(const void *dict, size_t dictSize);
+
+/**
+ * ZSTD_getDictID_fromDDict() - returns the dictionary id stored in a ZSTD_DDict
+ * @ddict: The ddict to find the id of.
+ *
+ * Return: The dictionary id stored within `ddict` or 0 if the dictionary is not
+ *         a zstd dictionary. If it returns 0 `ddict` will be loaded as a
+ *         content-only dictionary.
+ */
+unsigned int ZSTD_getDictID_fromDDict(const ZSTD_DDict *ddict);
+
+/**
+ * ZSTD_getDictID_fromFrame() - returns the dictionary id stored in a zstd frame
+ * @src:     Source buffer. It must be a zstd encoded frame.
+ * @srcSize: The size of the source buffer. It must be at least as large as the
+ *           frame header. `ZSTD_frameHeaderSize_max` is always large enough.
+ *
+ * Return:   The dictionary id required to decompress the frame stored within
+ *           `src` or 0 if the dictionary id could not be decoded. It can return
+ *           0 if the frame does not require a dictionary, the dictionary id
+ *           wasn't stored in the frame, `src` is not a zstd frame, or `srcSize`
+ *           is too small.
+ */
+unsigned int ZSTD_getDictID_fromFrame(const void *src, size_t srcSize);
+
+/**
+ * struct ZSTD_frameParams - zstd frame parameters stored in the frame header
+ * @frameContentSize: The frame content size, or 0 if not present.
+ * @windowSize:       The window size, or 0 if the frame is a skippable frame.
+ * @dictID:           The dictionary id, or 0 if not present.
+ * @checksumFlag:     Whether a checksum was used.
+ */
+typedef struct {
+	unsigned long long frameContentSize;
+	unsigned int windowSize;
+	unsigned int dictID;
+	unsigned int checksumFlag;
+} ZSTD_frameParams;
+
+/**
+ * ZSTD_getFrameParams() - extracts parameters from a zstd or skippable frame
+ * @fparamsPtr: On success the frame parameters are written here.
+ * @src:        The source buffer. It must point to a zstd or skippable frame.
+ * @srcSize:    The size of the source buffer. `ZSTD_frameHeaderSize_max` is
+ *              always large enough to succeed.
+ *
+ * Return:      0 on success. If more data is required it returns how many bytes
+ *              must be provided to make forward progress. Otherwise it returns
+ *              an error, which can be checked using ZSTD_isError().
+ */
+size_t ZSTD_getFrameParams(ZSTD_frameParams *fparamsPtr, const void *src,
+	size_t srcSize);
+
+/*-*****************************************************************************
+ * Buffer-less and synchronous inner streaming functions
+ *
+ * This is an advanced API, giving full control over buffer management, for
+ * users which need direct control over memory.
+ * But it's also a complex one, with many restrictions (documented below).
+ * Prefer using normal streaming API for an easier experience
+ ******************************************************************************/
+
+/*-*****************************************************************************
+ * Buffer-less streaming compression (synchronous mode)
+ *
+ * A ZSTD_CCtx object is required to track streaming operations.
+ * Use ZSTD_initCCtx() to initialize a context.
+ * ZSTD_CCtx object can be re-used multiple times within successive compression
+ * operations.
+ *
+ * Start by initializing a context.
+ * Use ZSTD_compressBegin(), or ZSTD_compressBegin_usingDict() for dictionary
+ * compression,
+ * or ZSTD_compressBegin_advanced(), for finer parameter control.
+ * It's also possible to duplicate a reference context which has already been
+ * initialized, using ZSTD_copyCCtx()
+ *
+ * Then, consume your input using ZSTD_compressContinue().
+ * There are some important considerations to keep in mind when using this
+ * advanced function :
+ * - ZSTD_compressContinue() has no internal buffer. It uses externally provided
+ *   buffer only.
+ * - Interface is synchronous : input is consumed entirely and produce 1+
+ *   (or more) compressed blocks.
+ * - Caller must ensure there is enough space in `dst` to store compressed data
+ *   under worst case scenario. Worst case evaluation is provided by
+ *   ZSTD_compressBound().
+ *   ZSTD_compressContinue() doesn't guarantee recover after a failed
+ *   compression.
+ * - ZSTD_compressContinue() presumes prior input ***is still accessible and
+ *   unmodified*** (up to maximum distance size, see WindowLog).
+ *   It remembers all previous contiguous blocks, plus one separated memory
+ *   segment (which can itself consists of multiple contiguous blocks)
+ * - ZSTD_compressContinue() detects that prior input has been overwritten when
+ *   `src` buffer overlaps. In which case, it will "discard" the relevant memory
+ *   section from its history.
+ *
+ * Finish a frame with ZSTD_compressEnd(), which will write the last block(s)
+ * and optional checksum. It's possible to use srcSize==0, in which case, it
+ * will write a final empty block to end the frame. Without last block mark,
+ * frames will be considered unfinished (corrupted) by decoders.
+ *
+ * `ZSTD_CCtx` object can be re-used (ZSTD_compressBegin()) to compress some new
+ * frame.
+ ******************************************************************************/
+
+/*=====   Buffer-less streaming compression functions  =====*/
+size_t ZSTD_compressBegin(ZSTD_CCtx *cctx, int compressionLevel);
+size_t ZSTD_compressBegin_usingDict(ZSTD_CCtx *cctx, const void *dict,
+	size_t dictSize, int compressionLevel);
+size_t ZSTD_compressBegin_advanced(ZSTD_CCtx *cctx, const void *dict,
+	size_t dictSize, ZSTD_parameters params,
+	unsigned long long pledgedSrcSize);
+size_t ZSTD_copyCCtx(ZSTD_CCtx *cctx, const ZSTD_CCtx *preparedCCtx,
+	unsigned long long pledgedSrcSize);
+size_t ZSTD_compressBegin_usingCDict(ZSTD_CCtx *cctx, const ZSTD_CDict *cdict,
+	unsigned long long pledgedSrcSize);
+size_t ZSTD_compressContinue(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize);
+size_t ZSTD_compressEnd(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize);
+
+
+
+/*-*****************************************************************************
+ * Buffer-less streaming decompression (synchronous mode)
+ *
+ * A ZSTD_DCtx object is required to track streaming operations.
+ * Use ZSTD_initDCtx() to initialize a context.
+ * A ZSTD_DCtx object can be re-used multiple times.
+ *
+ * First typical operation is to retrieve frame parameters, using
+ * ZSTD_getFrameParams(). It fills a ZSTD_frameParams structure which provide
+ * important information to correctly decode the frame, such as the minimum
+ * rolling buffer size to allocate to decompress data (`windowSize`), and the
+ * dictionary ID used.
+ * Note: content size is optional, it may not be present. 0 means unknown.
+ * Note that these values could be wrong, either because of data malformation,
+ * or because an attacker is spoofing deliberate false information. As a
+ * consequence, check that values remain within valid application range,
+ * especially `windowSize`, before allocation. Each application can set its own
+ * limit, depending on local restrictions. For extended interoperability, it is
+ * recommended to support at least 8 MB.
+ * Frame parameters are extracted from the beginning of the compressed frame.
+ * Data fragment must be large enough to ensure successful decoding, typically
+ * `ZSTD_frameHeaderSize_max` bytes.
+ * Result: 0: successful decoding, the `ZSTD_frameParams` structure is filled.
+ *        >0: `srcSize` is too small, provide at least this many bytes.
+ *        errorCode, which can be tested using ZSTD_isError().
+ *
+ * Start decompression, with ZSTD_decompressBegin() or
+ * ZSTD_decompressBegin_usingDict(). Alternatively, you can copy a prepared
+ * context, using ZSTD_copyDCtx().
+ *
+ * Then use ZSTD_nextSrcSizeToDecompress() and ZSTD_decompressContinue()
+ * alternatively.
+ * ZSTD_nextSrcSizeToDecompress() tells how many bytes to provide as 'srcSize'
+ * to ZSTD_decompressContinue().
+ * ZSTD_decompressContinue() requires this _exact_ amount of bytes, or it will
+ * fail.
+ *
+ * The result of ZSTD_decompressContinue() is the number of bytes regenerated
+ * within 'dst' (necessarily <= dstCapacity). It can be zero, which is not an
+ * error; it just means ZSTD_decompressContinue() has decoded some metadata
+ * item. It can also be an error code, which can be tested with ZSTD_isError().
+ *
+ * ZSTD_decompressContinue() needs previous data blocks during decompression, up
+ * to `windowSize`. They should preferably be located contiguously, prior to
+ * current block. Alternatively, a round buffer of sufficient size is also
+ * possible. Sufficient size is determined by frame parameters.
+ * ZSTD_decompressContinue() is very sensitive to contiguity, if 2 blocks don't
+ * follow each other, make sure that either the compressor breaks contiguity at
+ * the same place, or that previous contiguous segment is large enough to
+ * properly handle maximum back-reference.
+ *
+ * A frame is fully decoded when ZSTD_nextSrcSizeToDecompress() returns zero.
+ * Context can then be reset to start a new decompression.
+ *
+ * Note: it's possible to know if next input to present is a header or a block,
+ * using ZSTD_nextInputType(). This information is not required to properly
+ * decode a frame.
+ *
+ * == Special case: skippable frames ==
+ *
+ * Skippable frames allow integration of user-defined data into a flow of
+ * concatenated frames. Skippable frames will be ignored (skipped) by a
+ * decompressor. The format of skippable frames is as follows:
+ * a) Skippable frame ID - 4 Bytes, Little endian format, any value from
+ *    0x184D2A50 to 0x184D2A5F
+ * b) Frame Size - 4 Bytes, Little endian format, unsigned 32-bits
+ * c) Frame Content - any content (User Data) of length equal to Frame Size
+ * For skippable frames ZSTD_decompressContinue() always returns 0.
+ * For skippable frames ZSTD_getFrameParams() returns fparamsPtr->windowLog==0
+ * what means that a frame is skippable.
+ * Note: If fparamsPtr->frameContentSize==0, it is ambiguous: the frame might
+ *       actually be a zstd encoded frame with no content. For purposes of
+ *       decompression, it is valid in both cases to skip the frame using
+ *       ZSTD_findFrameCompressedSize() to find its size in bytes.
+ * It also returns frame size as fparamsPtr->frameContentSize.
+ ******************************************************************************/
+
+/*=====   Buffer-less streaming decompression functions  =====*/
+size_t ZSTD_decompressBegin(ZSTD_DCtx *dctx);
+size_t ZSTD_decompressBegin_usingDict(ZSTD_DCtx *dctx, const void *dict,
+	size_t dictSize);
+void   ZSTD_copyDCtx(ZSTD_DCtx *dctx, const ZSTD_DCtx *preparedDCtx);
+size_t ZSTD_nextSrcSizeToDecompress(ZSTD_DCtx *dctx);
+size_t ZSTD_decompressContinue(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize);
+typedef enum {
+	ZSTDnit_frameHeader,
+	ZSTDnit_blockHeader,
+	ZSTDnit_block,
+	ZSTDnit_lastBlock,
+	ZSTDnit_checksum,
+	ZSTDnit_skippableFrame
+} ZSTD_nextInputType_e;
+ZSTD_nextInputType_e ZSTD_nextInputType(ZSTD_DCtx *dctx);
+
+/*-*****************************************************************************
+ * Block functions
+ *
+ * Block functions produce and decode raw zstd blocks, without frame metadata.
+ * Frame metadata cost is typically ~18 bytes, which can be non-negligible for
+ * very small blocks (< 100 bytes). User will have to take in charge required
+ * information to regenerate data, such as compressed and content sizes.
+ *
+ * A few rules to respect:
+ * - Compressing and decompressing require a context structure
+ *   + Use ZSTD_initCCtx() and ZSTD_initDCtx()
+ * - It is necessary to init context before starting
+ *   + compression : ZSTD_compressBegin()
+ *   + decompression : ZSTD_decompressBegin()
+ *   + variants _usingDict() are also allowed
+ *   + copyCCtx() and copyDCtx() work too
+ * - Block size is limited, it must be <= ZSTD_getBlockSizeMax()
+ *   + If you need to compress more, cut data into multiple blocks
+ *   + Consider using the regular ZSTD_compress() instead, as frame metadata
+ *     costs become negligible when source size is large.
+ * - When a block is considered not compressible enough, ZSTD_compressBlock()
+ *   result will be zero. In which case, nothing is produced into `dst`.
+ *   + User must test for such outcome and deal directly with uncompressed data
+ *   + ZSTD_decompressBlock() doesn't accept uncompressed data as input!!!
+ *   + In case of multiple successive blocks, decoder must be informed of
+ *     uncompressed block existence to follow proper history. Use
+ *     ZSTD_insertBlock() in such a case.
+ ******************************************************************************/
+
+/* Define for static allocation */
+#define ZSTD_BLOCKSIZE_ABSOLUTEMAX (128 * 1024)
+/*=====   Raw zstd block functions  =====*/
+size_t ZSTD_getBlockSizeMax(ZSTD_CCtx *cctx);
+size_t ZSTD_compressBlock(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize);
+size_t ZSTD_decompressBlock(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity,
+	const void *src, size_t srcSize);
+size_t ZSTD_insertBlock(ZSTD_DCtx *dctx, const void *blockStart,
+	size_t blockSize);
+
+#endif  /* ZSTD_H */
diff --git a/include/media/blackfin/bfin_capture.h b/include/media/blackfin/bfin_capture.h
index 56b9ce4472fc..a999a3970c69 100644
--- a/include/media/blackfin/bfin_capture.h
+++ b/include/media/blackfin/bfin_capture.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BFIN_CAPTURE_H_
 #define _BFIN_CAPTURE_H_
 
diff --git a/include/media/drv-intf/saa7146.h b/include/media/drv-intf/saa7146.h
index 45294328614d..769c6cf7eb4c 100644
--- a/include/media/drv-intf/saa7146.h
+++ b/include/media/drv-intf/saa7146.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SAA7146__
 #define __SAA7146__
 
diff --git a/include/media/drv-intf/saa7146_vv.h b/include/media/drv-intf/saa7146_vv.h
index 0da6ccc0615b..4e89e9f12a1e 100644
--- a/include/media/drv-intf/saa7146_vv.h
+++ b/include/media/drv-intf/saa7146_vv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SAA7146_VV__
 #define __SAA7146_VV__
 
diff --git a/include/media/drv-intf/sh_mobile_ceu.h b/include/media/drv-intf/sh_mobile_ceu.h
index 2f43f7d9e28d..555f0ecc0fde 100644
--- a/include/media/drv-intf/sh_mobile_ceu.h
+++ b/include/media/drv-intf/sh_mobile_ceu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MOBILE_CEU_H__
 #define __ASM_SH_MOBILE_CEU_H__
 
diff --git a/include/media/i2c-addr.h b/include/media/i2c-addr.h
index 5d0f56054d26..1b6872f5e970 100644
--- a/include/media/i2c-addr.h
+++ b/include/media/i2c-addr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	V4L I2C address list
  *
diff --git a/include/media/i2c/ir-kbd-i2c.h b/include/media/i2c/ir-kbd-i2c.h
index ac8c55617a79..76491c62c254 100644
--- a/include/media/i2c/ir-kbd-i2c.h
+++ b/include/media/i2c/ir-kbd-i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IR_I2C
 #define _IR_I2C
 
diff --git a/include/media/i2c/mt9p031.h b/include/media/i2c/mt9p031.h
index 1ba361205af1..7c29c53aa988 100644
--- a/include/media/i2c/mt9p031.h
+++ b/include/media/i2c/mt9p031.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MT9P031_H
 #define MT9P031_H
 
diff --git a/include/media/i2c/mt9t001.h b/include/media/i2c/mt9t001.h
index 03fd63edd133..4b1090554270 100644
--- a/include/media/i2c/mt9t001.h
+++ b/include/media/i2c/mt9t001.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MEDIA_MT9T001_H
 #define _MEDIA_MT9T001_H
 
diff --git a/include/media/i2c/mt9v032.h b/include/media/i2c/mt9v032.h
index 12175a63c5b2..83a37ccfb649 100644
--- a/include/media/i2c/mt9v032.h
+++ b/include/media/i2c/mt9v032.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MEDIA_MT9V032_H
 #define _MEDIA_MT9V032_H
 
diff --git a/include/media/tuner-types.h b/include/media/tuner-types.h
index aed539068d2d..78f0654d9c3d 100644
--- a/include/media/tuner-types.h
+++ b/include/media/tuner-types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * descriptions for simple tuners.
  */
diff --git a/include/media/tveeprom.h b/include/media/tveeprom.h
index 630bcf3d8885..b56eaee82aa5 100644
--- a/include/media/tveeprom.h
+++ b/include/media/tveeprom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*
  * tveeprom - Contains structures and functions to work with Hauppauge
diff --git a/include/media/v4l2-dev.h b/include/media/v4l2-dev.h
index e657614521e3..28a686eb7d09 100644
--- a/include/media/v4l2-dev.h
+++ b/include/media/v4l2-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	V 4 L 2   D R I V E R   H E L P E R   A P I
diff --git a/include/media/v4l2-ioctl.h b/include/media/v4l2-ioctl.h
index bd5312118013..a7b3f7c75d62 100644
--- a/include/media/v4l2-ioctl.h
+++ b/include/media/v4l2-ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	V 4 L 2   D R I V E R   H E L P E R   A P I
diff --git a/include/media/videobuf-dvb.h b/include/media/videobuf-dvb.h
index c3bfa473c3aa..a14ac7711c92 100644
--- a/include/media/videobuf-dvb.h
+++ b/include/media/videobuf-dvb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <dvbdev.h>
 #include <dmxdev.h>
 #include <dvb_demux.h>
diff --git a/include/media/videobuf2-dvb.h b/include/media/videobuf2-dvb.h
index 87b559024b4a..5a31faa24f1a 100644
--- a/include/media/videobuf2-dvb.h
+++ b/include/media/videobuf2-dvb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _VIDEOBUF2_DVB_H_
 #define	_VIDEOBUF2_DVB_H_
 
diff --git a/include/net/Space.h b/include/net/Space.h
index 8a32771e4215..27fb5c937c4f 100644
--- a/include/net/Space.h
+++ b/include/net/Space.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* A unified ethernet device probe.  This is the easiest way to have every
  * ethernet adaptor have the name "eth[0123...]".
  */
diff --git a/include/net/act_api.h b/include/net/act_api.h
index 8f3d5d8b5ae0..a10a3b1813f3 100644
--- a/include/net/act_api.h
+++ b/include/net/act_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_ACT_API_H
 #define __NET_ACT_API_H
 
@@ -34,7 +35,6 @@ struct tc_action {
 	struct gnet_stats_queue		tcfa_qstats;
 	struct net_rate_estimator __rcu *tcfa_rate_est;
 	spinlock_t			tcfa_lock;
-	struct rcu_head			tcfa_rcu;
 	struct gnet_stats_basic_cpu __percpu *cpu_bstats;
 	struct gnet_stats_queue __percpu *cpu_qstats;
 	struct tc_cookie	*act_cookie;
@@ -50,7 +50,6 @@ struct tc_action {
 #define tcf_qstats	common.tcfa_qstats
 #define tcf_rate_est	common.tcfa_rate_est
 #define tcf_lock	common.tcfa_lock
-#define tcf_rcu		common.tcfa_rcu
 
 /* Update lastuse only if needed, to avoid dirtying a cache line.
  * We use a temp variable to avoid fetching jiffies twice.
@@ -124,7 +123,9 @@ void tcf_idrinfo_destroy(const struct tc_action_ops *ops,
 
 static inline void tc_action_net_exit(struct tc_action_net *tn)
 {
+	rtnl_lock();
 	tcf_idrinfo_destroy(tn->ops, tn->idrinfo);
+	rtnl_unlock();
 	kfree(tn->idrinfo);
 }
 
diff --git a/include/net/addrconf.h b/include/net/addrconf.h
index f44ff2476758..35f5aabd432f 100644
--- a/include/net/addrconf.h
+++ b/include/net/addrconf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ADDRCONF_H
 #define _ADDRCONF_H
 
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index afb37f835449..a5ba41b3b867 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NET_AFUNIX_H
 #define __LINUX_NET_AFUNIX_H
 
diff --git a/include/net/ah.h b/include/net/ah.h
index 4e2dfa474a7e..2d2dea521169 100644
--- a/include/net/ah.h
+++ b/include/net/ah.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_AH_H
 #define _NET_AH_H
 
diff --git a/include/net/arp.h b/include/net/arp.h
index 17d90e4e8dc5..dc8cd47f883b 100644
--- a/include/net/arp.h
+++ b/include/net/arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* linux/net/inet/arp.h */
 #ifndef _ARP_H
 #define _ARP_H
diff --git a/include/net/atmclip.h b/include/net/atmclip.h
index 5865924d4aac..70e350e0db3d 100644
--- a/include/net/atmclip.h
+++ b/include/net/atmclip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/atmarp.h - RFC1577 ATM ARP */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/net/ax25.h b/include/net/ax25.h
index c4a0cf6f0810..76fb39c272a7 100644
--- a/include/net/ax25.h
+++ b/include/net/ax25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of AX.25 type objects.
  *
diff --git a/include/net/compat.h b/include/net/compat.h
index 13de0ccaa059..a91bea80b9fc 100644
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef NET_COMPAT_H
 #define NET_COMPAT_H
 
diff --git a/include/net/datalink.h b/include/net/datalink.h
index 93cb18f729b5..a9663229b913 100644
--- a/include/net/datalink.h
+++ b/include/net/datalink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_INET_DATALINK_H_
 #define _NET_INET_DATALINK_H_
 
diff --git a/include/net/dn.h b/include/net/dn.h
index 913b73d239f5..fc0036228d20 100644
--- a/include/net/dn.h
+++ b/include/net/dn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_H
 #define _NET_DN_H
 
diff --git a/include/net/dn_dev.h b/include/net/dn_dev.h
index 197886cd7bdd..595b4f6c1eb1 100644
--- a/include/net/dn_dev.h
+++ b/include/net/dn_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_DEV_H
 #define _NET_DN_DEV_H
 
diff --git a/include/net/dn_fib.h b/include/net/dn_fib.h
index 81210a8b8d7c..6dd2213c5eb2 100644
--- a/include/net/dn_fib.h
+++ b/include/net/dn_fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_FIB_H
 #define _NET_DN_FIB_H
 
diff --git a/include/net/dn_neigh.h b/include/net/dn_neigh.h
index 5e902fc3f4eb..2e3e7793973a 100644
--- a/include/net/dn_neigh.h
+++ b/include/net/dn_neigh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DN_NEIGH_H
 #define _NET_DN_NEIGH_H
 
diff --git a/include/net/dsfield.h b/include/net/dsfield.h
index e1ad903a8d6a..1a245ee10c95 100644
--- a/include/net/dsfield.h
+++ b/include/net/dsfield.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* include/net/dsfield.h - Manipulation of the Differentiated Services field */
 
 /* Written 1998-2000 by Werner Almesberger, EPFL ICA */
diff --git a/include/net/dst.h b/include/net/dst.h
index 93568bd0a352..694c2e6ae618 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * net/dst.h	Protocol independent destination cache definitions.
  *
@@ -271,7 +272,7 @@ static inline void dst_use_noref(struct dst_entry *dst, unsigned long time)
 static inline struct dst_entry *dst_clone(struct dst_entry *dst)
 {
 	if (dst)
-		atomic_inc(&dst->__refcnt);
+		dst_hold(dst);
 	return dst;
 }
 
@@ -312,21 +313,6 @@ static inline void skb_dst_copy(struct sk_buff *nskb, const struct sk_buff *oskb
 }
 
 /**
- * skb_dst_force - makes sure skb dst is refcounted
- * @skb: buffer
- *
- * If dst is not yet refcounted, let's do it
- */
-static inline void skb_dst_force(struct sk_buff *skb)
-{
-	if (skb_dst_is_noref(skb)) {
-		WARN_ON(!rcu_read_lock_held());
-		skb->_skb_refdst &= ~SKB_DST_NOREF;
-		dst_clone(skb_dst(skb));
-	}
-}
-
-/**
  * dst_hold_safe - Take a reference on a dst if possible
  * @dst: pointer to dst entry
  *
@@ -339,16 +325,17 @@ static inline bool dst_hold_safe(struct dst_entry *dst)
 }
 
 /**
- * skb_dst_force_safe - makes sure skb dst is refcounted
+ * skb_dst_force - makes sure skb dst is refcounted
  * @skb: buffer
  *
  * If dst is not yet refcounted and not destroyed, grab a ref on it.
  */
-static inline void skb_dst_force_safe(struct sk_buff *skb)
+static inline void skb_dst_force(struct sk_buff *skb)
 {
 	if (skb_dst_is_noref(skb)) {
 		struct dst_entry *dst = skb_dst(skb);
 
+		WARN_ON(!rcu_read_lock_held());
 		if (!dst_hold_safe(dst))
 			dst = NULL;
 
diff --git a/include/net/dst_cache.h b/include/net/dst_cache.h
index 151accae708b..72fd5067c353 100644
--- a/include/net/dst_cache.h
+++ b/include/net/dst_cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DST_CACHE_H
 #define _NET_DST_CACHE_H
 
diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h
index a803129a4849..91bc7bdf6bf5 100644
--- a/include/net/dst_metadata.h
+++ b/include/net/dst_metadata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_DST_METADATA_H
 #define __NET_DST_METADATA_H 1
 
diff --git a/include/net/dst_ops.h b/include/net/dst_ops.h
index c84b3287e38b..5ec645f27ee3 100644
--- a/include/net/dst_ops.h
+++ b/include/net/dst_ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_DST_OPS_H
 #define _NET_DST_OPS_H
 #include <linux/types.h>
diff --git a/include/net/esp.h b/include/net/esp.h
index c41994d1bfef..117652eb6ea3 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_ESP_H
 #define _NET_ESP_H
 
diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 3d7f1cefc6f5..648caf90ec07 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_FIB_RULES_H
 #define __NET_FIB_RULES_H
 
diff --git a/include/net/firewire.h b/include/net/firewire.h
index 31bcbfe7a220..299e5df38552 100644
--- a/include/net/firewire.h
+++ b/include/net/firewire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_FIREWIRE_H
 #define _NET_FIREWIRE_H
 
diff --git a/include/net/flow.h b/include/net/flow.h
index eb60cee30b44..f1624fd5b1d0 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *
  *	Generic internet FLOW.
diff --git a/include/net/flow_dissector.h b/include/net/flow_dissector.h
index fc3dce730a6b..22aba321282d 100644
--- a/include/net/flow_dissector.h
+++ b/include/net/flow_dissector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_FLOW_DISSECTOR_H
 #define _NET_FLOW_DISSECTOR_H
 
diff --git a/include/net/fou.h b/include/net/fou.h
index f5cc6910a27e..80f56e275b08 100644
--- a/include/net/fou.h
+++ b/include/net/fou.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_FOU_H
 #define __NET_FOU_H
 
diff --git a/include/net/fq_impl.h b/include/net/fq_impl.h
index 4e6131cd3f43..ac1a2317941e 100644
--- a/include/net/fq_impl.h
+++ b/include/net/fq_impl.h
@@ -146,6 +146,7 @@ static void fq_tin_enqueue(struct fq *fq,
 			   fq_flow_get_default_t get_default_func)
 {
 	struct fq_flow *flow;
+	bool oom;
 
 	lockdep_assert_held(&fq->lock);
 
@@ -167,8 +168,8 @@ static void fq_tin_enqueue(struct fq *fq,
 	}
 
 	__skb_queue_tail(&flow->queue, skb);
-
-	if (fq->backlog > fq->limit || fq->memory_usage > fq->memory_limit) {
+	oom = (fq->memory_usage > fq->memory_limit);
+	while (fq->backlog > fq->limit || oom) {
 		flow = list_first_entry_or_null(&fq->backlogs,
 						struct fq_flow,
 						backlogchain);
@@ -183,8 +184,10 @@ static void fq_tin_enqueue(struct fq *fq,
 
 		flow->tin->overlimit++;
 		fq->overlimit++;
-		if (fq->memory_usage > fq->memory_limit)
+		if (oom) {
 			fq->overmemory++;
+			oom = (fq->memory_usage > fq->memory_limit);
+		}
 	}
 }
 
diff --git a/include/net/garp.h b/include/net/garp.h
index abf33bbd2e6a..c41833bd4590 100644
--- a/include/net/garp.h
+++ b/include/net/garp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_GARP_H
 #define _NET_GARP_H
 
diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index 8b7aa370e7a4..304f7aa9cc01 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GEN_STATS_H
 #define __NET_GEN_STATS_H
 
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index c59a098221db..5ac169a735f4 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GENERIC_NETLINK_H
 #define __NET_GENERIC_NETLINK_H
 
diff --git a/include/net/geneve.h b/include/net/geneve.h
index ec0327d4331b..a7600ed55ea3 100644
--- a/include/net/geneve.h
+++ b/include/net/geneve.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GENEVE_H
 #define __NET_GENEVE_H  1
 
diff --git a/include/net/gre.h b/include/net/gre.h
index d25d836c129b..f90585decbce 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_GRE_H
 #define __LINUX_GRE_H
 
diff --git a/include/net/gro_cells.h b/include/net/gro_cells.h
index fcaf8f479130..596688b67a2a 100644
--- a/include/net/gro_cells.h
+++ b/include/net/gro_cells.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_GRO_CELLS_H
 #define _NET_GRO_CELLS_H
 
diff --git a/include/net/gtp.h b/include/net/gtp.h
index 6398891b99ba..0e16ebb2a82d 100644
--- a/include/net/gtp.h
+++ b/include/net/gtp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GTP_H_
 #define _GTP_H_
 
diff --git a/include/net/gue.h b/include/net/gue.h
index 3f28ec7f1c7f..2fdb29ca74c2 100644
--- a/include/net/gue.h
+++ b/include/net/gue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_GUE_H
 #define __NET_GUE_H
 
diff --git a/include/net/hwbm.h b/include/net/hwbm.h
index 47d08662501b..89085e2e2da5 100644
--- a/include/net/hwbm.h
+++ b/include/net/hwbm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _HWBM_H
 #define _HWBM_H
 
diff --git a/include/net/ife.h b/include/net/ife.h
index 2d87d6898b0a..44b9c00f7223 100644
--- a/include/net/ife.h
+++ b/include/net/ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_IFE_H
 #define __NET_IFE_H
 
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index f39ae697347f..5a54c9570977 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INET_COMMON_H
 #define _INET_COMMON_H
 
diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h
index dce2d586d9ce..d30e4c869438 100644
--- a/include/net/inet_ecn.h
+++ b/include/net/inet_ecn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INET_ECN_H_
 #define _INET_ECN_H_
 
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index fc59e0775e00..a6e4edd8d4a2 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_FRAG_H__
 #define __NET_FRAG_H__
 
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index aa95053dfc78..db8162dd8c0b 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -96,7 +96,7 @@ struct inet_request_sock {
 	kmemcheck_bitfield_end(flags);
 	u32                     ir_mark;
 	union {
-		struct ip_options_rcu	*opt;
+		struct ip_options_rcu __rcu	*ireq_opt;
 #if IS_ENABLED(CONFIG_IPV6)
 		struct {
 			struct ipv6_txoptions	*ipv6_opt;
@@ -132,6 +132,12 @@ static inline int inet_request_bound_dev_if(const struct sock *sk,
 	return sk->sk_bound_dev_if;
 }
 
+static inline struct ip_options_rcu *ireq_opt_deref(const struct inet_request_sock *ireq)
+{
+	return rcu_dereference_check(ireq->ireq_opt,
+				     refcount_read(&ireq->req.rsk_refcnt) > 0);
+}
+
 struct inet_cork {
 	unsigned int		flags;
 	__be32			addr;
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 950ed182f62f..00b5e7825508 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *		INETPEER - A storage for permanent information about peers
  *
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index ee96f402cb75..bee528135cf1 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_IP6_ROUTE_H
 #define _NET_IP6_ROUTE_H
 
diff --git a/include/net/ip6_tunnel.h b/include/net/ip6_tunnel.h
index 08fbc7f7d8d7..d66f70f63734 100644
--- a/include/net/ip6_tunnel.h
+++ b/include/net/ip6_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_IP6_TUNNEL_H
 #define _NET_IP6_TUNNEL_H
 
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index 992652856fe8..eb2321a13506 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_IP_TUNNELS_H
 #define __NET_IP_TUNNELS_H 1
 
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 4f4f786255ef..ff68cf288f9b 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* IP Virtual Server
  * data structure and functionality definitions
  */
@@ -983,12 +984,12 @@ static inline int sysctl_sync_threshold(struct netns_ipvs *ipvs)
 
 static inline int sysctl_sync_period(struct netns_ipvs *ipvs)
 {
-	return ACCESS_ONCE(ipvs->sysctl_sync_threshold[1]);
+	return READ_ONCE(ipvs->sysctl_sync_threshold[1]);
 }
 
 static inline unsigned int sysctl_sync_refresh_period(struct netns_ipvs *ipvs)
 {
-	return ACCESS_ONCE(ipvs->sysctl_sync_refresh_period);
+	return READ_ONCE(ipvs->sysctl_sync_refresh_period);
 }
 
 static inline int sysctl_sync_retries(struct netns_ipvs *ipvs)
@@ -1013,7 +1014,7 @@ static inline int sysctl_sloppy_sctp(struct netns_ipvs *ipvs)
 
 static inline int sysctl_sync_ports(struct netns_ipvs *ipvs)
 {
-	return ACCESS_ONCE(ipvs->sysctl_sync_ports);
+	return READ_ONCE(ipvs->sysctl_sync_ports);
 }
 
 static inline int sysctl_sync_persist_mode(struct netns_ipvs *ipvs)
diff --git a/include/net/ipcomp.h b/include/net/ipcomp.h
index cc4f30cd7315..fee6fc451597 100644
--- a/include/net/ipcomp.h
+++ b/include/net/ipcomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_IPCOMP_H
 #define _NET_IPCOMP_H
 
diff --git a/include/net/ipconfig.h b/include/net/ipconfig.h
index c74cc1bd5a02..e3534299bd2a 100644
--- a/include/net/ipconfig.h
+++ b/include/net/ipconfig.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Copyright (C) 1997 Martin Mares
  *
diff --git a/include/net/ipx.h b/include/net/ipx.h
index af32b97b5ddd..baf090390998 100644
--- a/include/net/ipx.h
+++ b/include/net/ipx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_INET_IPX_H_
 #define _NET_INET_IPX_H_
 /*
diff --git a/include/net/iucv/af_iucv.h b/include/net/iucv/af_iucv.h
index 714cc9a54a4c..070e93a17c59 100644
--- a/include/net/iucv/af_iucv.h
+++ b/include/net/iucv/af_iucv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright 2006 IBM Corporation
  * IUCV protocol stack for Linux on zSeries
diff --git a/include/net/iucv/iucv.h b/include/net/iucv/iucv.h
index b867b0cf79e8..f9e88401d7da 100644
--- a/include/net/iucv/iucv.h
+++ b/include/net/iucv/iucv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  drivers/s390/net/iucv.h
  *    IUCV base support.
diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index 2509728650bd..725282095840 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file define the new driver API for Wireless Extensions
  *
diff --git a/include/net/lapb.h b/include/net/lapb.h
index 85e773742f4e..ccc3d1f020b0 100644
--- a/include/net/lapb.h
+++ b/include/net/lapb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LAPB_H
 #define _LAPB_H 
 #include <linux/lapb.h>
diff --git a/include/net/lib80211.h b/include/net/lib80211.h
index aab0f427edb5..8b47d3a51cf8 100644
--- a/include/net/lib80211.h
+++ b/include/net/lib80211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * lib80211.h -- common bits for IEEE802.11 wireless drivers
  *
diff --git a/include/net/lwtunnel.h b/include/net/lwtunnel.h
index 7c26863b8cf4..d747ef975cd8 100644
--- a/include/net/lwtunnel.h
+++ b/include/net/lwtunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_LWTUNNEL_H
 #define __NET_LWTUNNEL_H 1
 
diff --git a/include/net/mld.h b/include/net/mld.h
index 01d751303498..b0f5b3105ef0 100644
--- a/include/net/mld.h
+++ b/include/net/mld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_MLD_H
 #define LINUX_MLD_H
 
diff --git a/include/net/mrp.h b/include/net/mrp.h
index 31912c3be772..ef58b4a07190 100644
--- a/include/net/mrp.h
+++ b/include/net/mrp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_MRP_H
 #define _NET_MRP_H
 
diff --git a/include/net/ncsi.h b/include/net/ncsi.h
index fdc60ff2511d..fbefe80361ee 100644
--- a/include/net/ncsi.h
+++ b/include/net/ncsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NCSI_H
 #define __NET_NCSI_H
 
diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index 31b1bb11ba3f..ddfbb591e2c5 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NDISC_H
 #define _NDISC_H
 
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 9816df225af3..a964366a7ef5 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_NEIGHBOUR_H
 #define _NET_NEIGHBOUR_H
 
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 57faa375eab9..10f99dafd5ac 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Operations on the network namespace
  */
diff --git a/include/net/net_ratelimit.h b/include/net/net_ratelimit.h
index 7727b4247daf..93c1bd5133c2 100644
--- a/include/net/net_ratelimit.h
+++ b/include/net/net_ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NET_RATELIMIT_H
 #define _LINUX_NET_RATELIMIT_H
 
diff --git a/include/net/netevent.h b/include/net/netevent.h
index f440df172b56..f728d9cad170 100644
--- a/include/net/netevent.h
+++ b/include/net/netevent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_EVENT_H
 #define _NET_EVENT_H
 
diff --git a/include/net/netfilter/br_netfilter.h b/include/net/netfilter/br_netfilter.h
index 925524ede6c8..74af19c3a8f7 100644
--- a/include/net/netfilter/br_netfilter.h
+++ b/include/net/netfilter/br_netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BR_NETFILTER_H_
 #define _BR_NETFILTER_H_
 
diff --git a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
index 919e4e8af327..2cc728ef8cd0 100644
--- a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IPv4 support for nf_conntrack.
  *
diff --git a/include/net/netfilter/ipv4/nf_defrag_ipv4.h b/include/net/netfilter/ipv4/nf_defrag_ipv4.h
index db405f70e538..bcbd724cc048 100644
--- a/include/net/netfilter/ipv4/nf_defrag_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_defrag_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DEFRAG_IPV4_H
 #define _NF_DEFRAG_IPV4_H
 
diff --git a/include/net/netfilter/ipv4/nf_dup_ipv4.h b/include/net/netfilter/ipv4/nf_dup_ipv4.h
index 0a14733e8b82..c962e0be3549 100644
--- a/include/net/netfilter/ipv4/nf_dup_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_dup_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DUP_IPV4_H_
 #define _NF_DUP_IPV4_H_
 
diff --git a/include/net/netfilter/ipv4/nf_nat_masquerade.h b/include/net/netfilter/ipv4/nf_nat_masquerade.h
index a9c001c646da..ebd869473603 100644
--- a/include/net/netfilter/ipv4/nf_nat_masquerade.h
+++ b/include/net/netfilter/ipv4/nf_nat_masquerade.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_MASQUERADE_IPV4_H_
 #define _NF_NAT_MASQUERADE_IPV4_H_
 
diff --git a/include/net/netfilter/ipv4/nf_reject.h b/include/net/netfilter/ipv4/nf_reject.h
index df7ecd806aba..2eb43fcefc50 100644
--- a/include/net/netfilter/ipv4/nf_reject.h
+++ b/include/net/netfilter/ipv4/nf_reject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IPV4_NF_REJECT_H
 #define _IPV4_NF_REJECT_H
 
diff --git a/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h b/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h
index 67edd50a398a..c86895bc5eb6 100644
--- a/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h
+++ b/include/net/netfilter/ipv6/nf_conntrack_icmpv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ICMPv6 tracking.
  *
diff --git a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
index eaea968f8657..79a335c0d8b8 100644
--- a/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_conntrack_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_IPV6_H
 #define _NF_CONNTRACK_IPV6_H
 
diff --git a/include/net/netfilter/ipv6/nf_defrag_ipv6.h b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
index 7664efe37974..9d7e28736da9 100644
--- a/include/net/netfilter/ipv6/nf_defrag_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DEFRAG_IPV6_H
 #define _NF_DEFRAG_IPV6_H
 
diff --git a/include/net/netfilter/ipv6/nf_dup_ipv6.h b/include/net/netfilter/ipv6/nf_dup_ipv6.h
index fa6237b382a3..caf0c2dd8ee7 100644
--- a/include/net/netfilter/ipv6/nf_dup_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_dup_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DUP_IPV6_H_
 #define _NF_DUP_IPV6_H_
 
diff --git a/include/net/netfilter/ipv6/nf_nat_masquerade.h b/include/net/netfilter/ipv6/nf_nat_masquerade.h
index 0a13396cd390..1ed4f2631ed6 100644
--- a/include/net/netfilter/ipv6/nf_nat_masquerade.h
+++ b/include/net/netfilter/ipv6/nf_nat_masquerade.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_MASQUERADE_IPV6_H_
 #define _NF_NAT_MASQUERADE_IPV6_H_
 
diff --git a/include/net/netfilter/ipv6/nf_reject.h b/include/net/netfilter/ipv6/nf_reject.h
index 0ea4fa37db16..3a5a9a36a0b2 100644
--- a/include/net/netfilter/ipv6/nf_reject.h
+++ b/include/net/netfilter/ipv6/nf_reject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _IPV6_NF_REJECT_H
 #define _IPV6_NF_REJECT_H
 
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 8f3bd30511de..792c3f6d30ce 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Connection state tracking for netfilter.  This is separated from,
  * but required by, the (future) NAT layer; it can also be used by an iptables
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index 81d7f8a30945..9b5e7634713e 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header is used to share core functionality between the
  * standalone connection tracking module, and the compatibility layer's use
diff --git a/include/net/netfilter/nf_conntrack_ecache.h b/include/net/netfilter/nf_conntrack_ecache.h
index 2a10c6570fcc..3f1ce9a8776e 100644
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * connection tracking event cache.
  */
diff --git a/include/net/netfilter/nf_conntrack_expect.h b/include/net/netfilter/nf_conntrack_expect.h
index 818def011110..006e430d1cdf 100644
--- a/include/net/netfilter/nf_conntrack_expect.h
+++ b/include/net/netfilter/nf_conntrack_expect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * connection tracking expectations.
  */
diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h
index 4944bc9153cf..21f887c5058c 100644
--- a/include/net/netfilter/nf_conntrack_extend.h
+++ b/include/net/netfilter/nf_conntrack_extend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_EXTEND_H
 #define _NF_CONNTRACK_EXTEND_H
 
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index c519bb5b5bb8..fc39bbaf107c 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * connection tracking helpers.
  *
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index 6269deecbee7..d5808f3e2715 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C)2003,2004 USAGI/WIDE Project
  *
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index 738a0307a96b..510192eb7e9d 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Header for use in defining a given L4 protocol for connection tracking.
  *
diff --git a/include/net/netfilter/nf_conntrack_labels.h b/include/net/netfilter/nf_conntrack_labels.h
index 1723a67c0b0a..4eacce6f3bcc 100644
--- a/include/net/netfilter/nf_conntrack_labels.h
+++ b/include/net/netfilter/nf_conntrack_labels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/types.h>
 #include <net/net_namespace.h>
 #include <linux/netfilter/nf_conntrack_common.h>
diff --git a/include/net/netfilter/nf_conntrack_seqadj.h b/include/net/netfilter/nf_conntrack_seqadj.h
index 4b3362991a25..0a10b50537ae 100644
--- a/include/net/netfilter/nf_conntrack_seqadj.h
+++ b/include/net/netfilter/nf_conntrack_seqadj.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SEQADJ_H
 #define _NF_CONNTRACK_SEQADJ_H
 
diff --git a/include/net/netfilter/nf_conntrack_synproxy.h b/include/net/netfilter/nf_conntrack_synproxy.h
index a2fcb5271726..2c7559a54092 100644
--- a/include/net/netfilter/nf_conntrack_synproxy.h
+++ b/include/net/netfilter/nf_conntrack_synproxy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_SYNPROXY_H
 #define _NF_CONNTRACK_SYNPROXY_H
 
diff --git a/include/net/netfilter/nf_conntrack_timeout.h b/include/net/netfilter/nf_conntrack_timeout.h
index 483d104fa254..9468ab4ad12d 100644
--- a/include/net/netfilter/nf_conntrack_timeout.h
+++ b/include/net/netfilter/nf_conntrack_timeout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TIMEOUT_H
 #define _NF_CONNTRACK_TIMEOUT_H
 
diff --git a/include/net/netfilter/nf_conntrack_timestamp.h b/include/net/netfilter/nf_conntrack_timestamp.h
index 300ae2209f25..3b661986be8f 100644
--- a/include/net/netfilter/nf_conntrack_timestamp.h
+++ b/include/net/netfilter/nf_conntrack_timestamp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_TSTAMP_H
 #define _NF_CONNTRACK_TSTAMP_H
 
diff --git a/include/net/netfilter/nf_conntrack_tuple.h b/include/net/netfilter/nf_conntrack_tuple.h
index aea3f8221be0..bf0444e111a6 100644
--- a/include/net/netfilter/nf_conntrack_tuple.h
+++ b/include/net/netfilter/nf_conntrack_tuple.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Definitions and Declarations for tuple.
  *
diff --git a/include/net/netfilter/nf_conntrack_zones.h b/include/net/netfilter/nf_conntrack_zones.h
index 64a718b60839..52950baa3ab5 100644
--- a/include/net/netfilter/nf_conntrack_zones.h
+++ b/include/net/netfilter/nf_conntrack_zones.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_CONNTRACK_ZONES_H
 #define _NF_CONNTRACK_ZONES_H
 
diff --git a/include/net/netfilter/nf_dup_netdev.h b/include/net/netfilter/nf_dup_netdev.h
index 3e919356bedf..2a6f6dcad3d9 100644
--- a/include/net/netfilter/nf_dup_netdev.h
+++ b/include/net/netfilter/nf_dup_netdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_DUP_NETDEV_H_
 #define _NF_DUP_NETDEV_H_
 
diff --git a/include/net/netfilter/nf_log.h b/include/net/netfilter/nf_log.h
index 42e0696f38d8..e811ac07ea94 100644
--- a/include/net/netfilter/nf_log.h
+++ b/include/net/netfilter/nf_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_LOG_H
 #define _NF_LOG_H
 
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index b71701302e61..207a467e7ca6 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_H
 #define _NF_NAT_H
 #include <linux/netfilter_ipv4.h>
diff --git a/include/net/netfilter/nf_nat_core.h b/include/net/netfilter/nf_nat_core.h
index 186c54138f35..235bd0e9a5aa 100644
--- a/include/net/netfilter/nf_nat_core.h
+++ b/include/net/netfilter/nf_nat_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_CORE_H
 #define _NF_NAT_CORE_H
 #include <linux/list.h>
diff --git a/include/net/netfilter/nf_nat_helper.h b/include/net/netfilter/nf_nat_helper.h
index fbfa5acf4f14..97d7033e93a4 100644
--- a/include/net/netfilter/nf_nat_helper.h
+++ b/include/net/netfilter/nf_nat_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_HELPER_H
 #define _NF_NAT_HELPER_H
 /* NAT protocol helper routines. */
diff --git a/include/net/netfilter/nf_nat_l3proto.h b/include/net/netfilter/nf_nat_l3proto.h
index aef3e5fc9fd9..ce7c2b4e64bb 100644
--- a/include/net/netfilter/nf_nat_l3proto.h
+++ b/include/net/netfilter/nf_nat_l3proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_L3PROTO_H
 #define _NF_NAT_L3PROTO_H
 
diff --git a/include/net/netfilter/nf_nat_l4proto.h b/include/net/netfilter/nf_nat_l4proto.h
index 3923150f2a1e..67835ff8a2d9 100644
--- a/include/net/netfilter/nf_nat_l4proto.h
+++ b/include/net/netfilter/nf_nat_l4proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Header for use in defining a given protocol. */
 #ifndef _NF_NAT_L4PROTO_H
 #define _NF_NAT_L4PROTO_H
diff --git a/include/net/netfilter/nf_nat_redirect.h b/include/net/netfilter/nf_nat_redirect.h
index 73b729543309..5ddabb08c472 100644
--- a/include/net/netfilter/nf_nat_redirect.h
+++ b/include/net/netfilter/nf_nat_redirect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_NAT_REDIRECT_H_
 #define _NF_NAT_REDIRECT_H_
 
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index 39468720fc19..814058d0f167 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_QUEUE_H
 #define _NF_QUEUE_H
 
diff --git a/include/net/netfilter/nf_socket.h b/include/net/netfilter/nf_socket.h
index f2fc39c97d43..8230fefff9f5 100644
--- a/include/net/netfilter/nf_socket.h
+++ b/include/net/netfilter/nf_socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_SOCK_H_
 #define _NF_SOCK_H_
 
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 0f5b12a4ad09..470c1c71e7f4 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_NF_TABLES_H
 #define _NET_NF_TABLES_H
 
@@ -1164,8 +1165,8 @@ static inline u8 nft_genmask_next(const struct net *net)
 
 static inline u8 nft_genmask_cur(const struct net *net)
 {
-	/* Use ACCESS_ONCE() to prevent refetching the value for atomicity */
-	return 1 << ACCESS_ONCE(net->nft.gencursor);
+	/* Use READ_ONCE() to prevent refetching the value for atomicity */
+	return 1 << READ_ONCE(net->nft.gencursor);
 }
 
 #define NFT_GENMASK_ANY		((1 << 0) | (1 << 1))
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 424684c33771..ea5aab568be8 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_NF_TABLES_CORE_H
 #define _NET_NF_TABLES_CORE_H
 
diff --git a/include/net/netfilter/nf_tables_ipv4.h b/include/net/netfilter/nf_tables_ipv4.h
index 25e33aee91e7..f0896ba456c4 100644
--- a/include/net/netfilter/nf_tables_ipv4.h
+++ b/include/net/netfilter/nf_tables_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_TABLES_IPV4_H_
 #define _NF_TABLES_IPV4_H_
 
diff --git a/include/net/netfilter/nf_tables_ipv6.h b/include/net/netfilter/nf_tables_ipv6.h
index 97983d1c05e4..b8065b72f56e 100644
--- a/include/net/netfilter/nf_tables_ipv6.h
+++ b/include/net/netfilter/nf_tables_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_TABLES_IPV6_H_
 #define _NF_TABLES_IPV6_H_
 
diff --git a/include/net/netfilter/nfnetlink_log.h b/include/net/netfilter/nfnetlink_log.h
index 5ca3f14f0998..612cfb63ac68 100644
--- a/include/net/netfilter/nfnetlink_log.h
+++ b/include/net/netfilter/nfnetlink_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KER_NFNETLINK_LOG_H
 #define _KER_NFNETLINK_LOG_H
 
diff --git a/include/net/netfilter/nft_dup.h b/include/net/netfilter/nft_dup.h
index 6b84cf6491a2..4d9d512984b2 100644
--- a/include/net/netfilter/nft_dup.h
+++ b/include/net/netfilter/nft_dup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_DUP_H_
 #define _NFT_DUP_H_
 
diff --git a/include/net/netfilter/nft_fib.h b/include/net/netfilter/nft_fib.h
index 381af9469e6a..a88f92737308 100644
--- a/include/net/netfilter/nft_fib.h
+++ b/include/net/netfilter/nft_fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_FIB_H_
 #define _NFT_FIB_H_
 
diff --git a/include/net/netfilter/nft_masq.h b/include/net/netfilter/nft_masq.h
index a3f3c11b2526..e51ab3815797 100644
--- a/include/net/netfilter/nft_masq.h
+++ b/include/net/netfilter/nft_masq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_MASQ_H_
 #define _NFT_MASQ_H_
 
diff --git a/include/net/netfilter/nft_meta.h b/include/net/netfilter/nft_meta.h
index 1139cde0fdc5..5c69e9b09388 100644
--- a/include/net/netfilter/nft_meta.h
+++ b/include/net/netfilter/nft_meta.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_META_H_
 #define _NFT_META_H_
 
diff --git a/include/net/netfilter/nft_redir.h b/include/net/netfilter/nft_redir.h
index a2d67546afab..4a970737c03c 100644
--- a/include/net/netfilter/nft_redir.h
+++ b/include/net/netfilter/nft_redir.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_REDIR_H_
 #define _NFT_REDIR_H_
 
diff --git a/include/net/netfilter/nft_reject.h b/include/net/netfilter/nft_reject.h
index 02e28c529b29..de80c50761f0 100644
--- a/include/net/netfilter/nft_reject.h
+++ b/include/net/netfilter/nft_reject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NFT_REJECT_H_
 #define _NFT_REJECT_H_
 
diff --git a/include/net/netfilter/xt_rateest.h b/include/net/netfilter/xt_rateest.h
index 130e58361f99..b1db13772554 100644
--- a/include/net/netfilter/xt_rateest.h
+++ b/include/net/netfilter/xt_rateest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XT_RATEEST_H
 #define _XT_RATEEST_H
 
diff --git a/include/net/netlink.h b/include/net/netlink.h
index e51cf5f81597..0c154f98e987 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NETLINK_H
 #define __NET_NETLINK_H
 
@@ -773,7 +774,10 @@ static inline int nla_parse_nested(struct nlattr *tb[], int maxtype,
  */
 static inline int nla_put_u8(struct sk_buff *skb, int attrtype, u8 value)
 {
-	return nla_put(skb, attrtype, sizeof(u8), &value);
+	/* temporary variables to work around GCC PR81715 with asan-stack=1 */
+	u8 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(u8), &tmp);
 }
 
 /**
@@ -784,7 +788,9 @@ static inline int nla_put_u8(struct sk_buff *skb, int attrtype, u8 value)
  */
 static inline int nla_put_u16(struct sk_buff *skb, int attrtype, u16 value)
 {
-	return nla_put(skb, attrtype, sizeof(u16), &value);
+	u16 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(u16), &tmp);
 }
 
 /**
@@ -795,7 +801,9 @@ static inline int nla_put_u16(struct sk_buff *skb, int attrtype, u16 value)
  */
 static inline int nla_put_be16(struct sk_buff *skb, int attrtype, __be16 value)
 {
-	return nla_put(skb, attrtype, sizeof(__be16), &value);
+	__be16 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(__be16), &tmp);
 }
 
 /**
@@ -806,7 +814,9 @@ static inline int nla_put_be16(struct sk_buff *skb, int attrtype, __be16 value)
  */
 static inline int nla_put_net16(struct sk_buff *skb, int attrtype, __be16 value)
 {
-	return nla_put_be16(skb, attrtype | NLA_F_NET_BYTEORDER, value);
+	__be16 tmp = value;
+
+	return nla_put_be16(skb, attrtype | NLA_F_NET_BYTEORDER, tmp);
 }
 
 /**
@@ -817,7 +827,9 @@ static inline int nla_put_net16(struct sk_buff *skb, int attrtype, __be16 value)
  */
 static inline int nla_put_le16(struct sk_buff *skb, int attrtype, __le16 value)
 {
-	return nla_put(skb, attrtype, sizeof(__le16), &value);
+	__le16 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(__le16), &tmp);
 }
 
 /**
@@ -828,7 +840,9 @@ static inline int nla_put_le16(struct sk_buff *skb, int attrtype, __le16 value)
  */
 static inline int nla_put_u32(struct sk_buff *skb, int attrtype, u32 value)
 {
-	return nla_put(skb, attrtype, sizeof(u32), &value);
+	u32 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(u32), &tmp);
 }
 
 /**
@@ -839,7 +853,9 @@ static inline int nla_put_u32(struct sk_buff *skb, int attrtype, u32 value)
  */
 static inline int nla_put_be32(struct sk_buff *skb, int attrtype, __be32 value)
 {
-	return nla_put(skb, attrtype, sizeof(__be32), &value);
+	__be32 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(__be32), &tmp);
 }
 
 /**
@@ -850,7 +866,9 @@ static inline int nla_put_be32(struct sk_buff *skb, int attrtype, __be32 value)
  */
 static inline int nla_put_net32(struct sk_buff *skb, int attrtype, __be32 value)
 {
-	return nla_put_be32(skb, attrtype | NLA_F_NET_BYTEORDER, value);
+	__be32 tmp = value;
+
+	return nla_put_be32(skb, attrtype | NLA_F_NET_BYTEORDER, tmp);
 }
 
 /**
@@ -861,7 +879,9 @@ static inline int nla_put_net32(struct sk_buff *skb, int attrtype, __be32 value)
  */
 static inline int nla_put_le32(struct sk_buff *skb, int attrtype, __le32 value)
 {
-	return nla_put(skb, attrtype, sizeof(__le32), &value);
+	__le32 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(__le32), &tmp);
 }
 
 /**
@@ -874,7 +894,9 @@ static inline int nla_put_le32(struct sk_buff *skb, int attrtype, __le32 value)
 static inline int nla_put_u64_64bit(struct sk_buff *skb, int attrtype,
 				    u64 value, int padattr)
 {
-	return nla_put_64bit(skb, attrtype, sizeof(u64), &value, padattr);
+	u64 tmp = value;
+
+	return nla_put_64bit(skb, attrtype, sizeof(u64), &tmp, padattr);
 }
 
 /**
@@ -887,7 +909,9 @@ static inline int nla_put_u64_64bit(struct sk_buff *skb, int attrtype,
 static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value,
 			       int padattr)
 {
-	return nla_put_64bit(skb, attrtype, sizeof(__be64), &value, padattr);
+	__be64 tmp = value;
+
+	return nla_put_64bit(skb, attrtype, sizeof(__be64), &tmp, padattr);
 }
 
 /**
@@ -900,7 +924,9 @@ static inline int nla_put_be64(struct sk_buff *skb, int attrtype, __be64 value,
 static inline int nla_put_net64(struct sk_buff *skb, int attrtype, __be64 value,
 				int padattr)
 {
-	return nla_put_be64(skb, attrtype | NLA_F_NET_BYTEORDER, value,
+	__be64 tmp = value;
+
+	return nla_put_be64(skb, attrtype | NLA_F_NET_BYTEORDER, tmp,
 			    padattr);
 }
 
@@ -914,7 +940,9 @@ static inline int nla_put_net64(struct sk_buff *skb, int attrtype, __be64 value,
 static inline int nla_put_le64(struct sk_buff *skb, int attrtype, __le64 value,
 			       int padattr)
 {
-	return nla_put_64bit(skb, attrtype, sizeof(__le64), &value, padattr);
+	__le64 tmp = value;
+
+	return nla_put_64bit(skb, attrtype, sizeof(__le64), &tmp, padattr);
 }
 
 /**
@@ -925,7 +953,9 @@ static inline int nla_put_le64(struct sk_buff *skb, int attrtype, __le64 value,
  */
 static inline int nla_put_s8(struct sk_buff *skb, int attrtype, s8 value)
 {
-	return nla_put(skb, attrtype, sizeof(s8), &value);
+	s8 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(s8), &tmp);
 }
 
 /**
@@ -936,7 +966,9 @@ static inline int nla_put_s8(struct sk_buff *skb, int attrtype, s8 value)
  */
 static inline int nla_put_s16(struct sk_buff *skb, int attrtype, s16 value)
 {
-	return nla_put(skb, attrtype, sizeof(s16), &value);
+	s16 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(s16), &tmp);
 }
 
 /**
@@ -947,7 +979,9 @@ static inline int nla_put_s16(struct sk_buff *skb, int attrtype, s16 value)
  */
 static inline int nla_put_s32(struct sk_buff *skb, int attrtype, s32 value)
 {
-	return nla_put(skb, attrtype, sizeof(s32), &value);
+	s32 tmp = value;
+
+	return nla_put(skb, attrtype, sizeof(s32), &tmp);
 }
 
 /**
@@ -960,7 +994,9 @@ static inline int nla_put_s32(struct sk_buff *skb, int attrtype, s32 value)
 static inline int nla_put_s64(struct sk_buff *skb, int attrtype, s64 value,
 			      int padattr)
 {
-	return nla_put_64bit(skb, attrtype, sizeof(s64), &value, padattr);
+	s64 tmp = value;
+
+	return nla_put_64bit(skb, attrtype, sizeof(s64), &tmp, padattr);
 }
 
 /**
@@ -1010,7 +1046,9 @@ static inline int nla_put_msecs(struct sk_buff *skb, int attrtype,
 static inline int nla_put_in_addr(struct sk_buff *skb, int attrtype,
 				  __be32 addr)
 {
-	return nla_put_be32(skb, attrtype, addr);
+	__be32 tmp = addr;
+
+	return nla_put_be32(skb, attrtype, tmp);
 }
 
 /**
diff --git a/include/net/netns/can.h b/include/net/netns/can.h
index b106e6ae2e5b..ecf238b8862c 100644
--- a/include/net/netns/can.h
+++ b/include/net/netns/can.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * can in net namespaces
  */
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index 17724c62de97..9795d628a127 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_CONNTRACK_H
 #define __NETNS_CONNTRACK_H
 
diff --git a/include/net/netns/core.h b/include/net/netns/core.h
index 78eb1ff75475..0ad4d0c71228 100644
--- a/include/net/netns/core.h
+++ b/include/net/netns/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_CORE_H__
 #define __NETNS_CORE_H__
 
diff --git a/include/net/netns/dccp.h b/include/net/netns/dccp.h
index 98d2a7ce1f71..cdbc4f5b8390 100644
--- a/include/net/netns/dccp.h
+++ b/include/net/netns/dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_DCCP_H__
 #define __NETNS_DCCP_H__
 
diff --git a/include/net/netns/generic.h b/include/net/netns/generic.h
index f15daaa89385..8a1ab47c3fb3 100644
--- a/include/net/netns/generic.h
+++ b/include/net/netns/generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * generic net pointers
  */
diff --git a/include/net/netns/hash.h b/include/net/netns/hash.h
index 69a6715d9f3f..24c78183a4c2 100644
--- a/include/net/netns/hash.h
+++ b/include/net/netns/hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NS_HASH_H__
 #define __NET_NS_HASH_H__
 
diff --git a/include/net/netns/ieee802154_6lowpan.h b/include/net/netns/ieee802154_6lowpan.h
index 8170f8d7052b..736aeac52f56 100644
--- a/include/net/netns/ieee802154_6lowpan.h
+++ b/include/net/netns/ieee802154_6lowpan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ieee802154 6lowpan in net namespaces
  */
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 20d061c805e3..8fcff2837484 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ipv4 in net namespaces
  */
diff --git a/include/net/netns/ipv6.h b/include/net/netns/ipv6.h
index 2544f9760a42..dc825a5ddd7f 100644
--- a/include/net/netns/ipv6.h
+++ b/include/net/netns/ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * ipv6 in net namespaces
  */
diff --git a/include/net/netns/mib.h b/include/net/netns/mib.h
index d542a4b28cca..830bdf345b17 100644
--- a/include/net/netns/mib.h
+++ b/include/net/netns/mib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_MIB_H__
 #define __NETNS_MIB_H__
 
diff --git a/include/net/netns/mpls.h b/include/net/netns/mpls.h
index 6608b3693385..a7bdcfbb0b28 100644
--- a/include/net/netns/mpls.h
+++ b/include/net/netns/mpls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * mpls in net namespaces
  */
diff --git a/include/net/netns/netfilter.h b/include/net/netns/netfilter.h
index 72d66c8763d0..cc00af2ac2d7 100644
--- a/include/net/netns/netfilter.h
+++ b/include/net/netns/netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_NETFILTER_H
 #define __NETNS_NETFILTER_H
 
diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h
index c80781146019..4109b5f3010f 100644
--- a/include/net/netns/nftables.h
+++ b/include/net/netns/nftables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NETNS_NFTABLES_H_
 #define _NETNS_NFTABLES_H_
 
diff --git a/include/net/netns/packet.h b/include/net/netns/packet.h
index 17ec2b95c062..aae69bb43cde 100644
--- a/include/net/netns/packet.h
+++ b/include/net/netns/packet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Packet network namespace
  */
diff --git a/include/net/netns/sctp.h b/include/net/netns/sctp.h
index b7871d018354..ebc813277662 100644
--- a/include/net/netns/sctp.h
+++ b/include/net/netns/sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_SCTP_H__
 #define __NETNS_SCTP_H__
 
diff --git a/include/net/netns/unix.h b/include/net/netns/unix.h
index 284649d4dfb4..91a3d7e39198 100644
--- a/include/net/netns/unix.h
+++ b/include/net/netns/unix.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Unix network namespace
  */
diff --git a/include/net/netns/x_tables.h b/include/net/netns/x_tables.h
index c8a7681efa6a..9bc5a12fdbb0 100644
--- a/include/net/netns/x_tables.h
+++ b/include/net/netns/x_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_X_TABLES_H
 #define __NETNS_X_TABLES_H
 
diff --git a/include/net/netns/xfrm.h b/include/net/netns/xfrm.h
index 611521646dd4..9991e5ef52cc 100644
--- a/include/net/netns/xfrm.h
+++ b/include/net/netns/xfrm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NETNS_XFRM_H
 #define __NETNS_XFRM_H
 
diff --git a/include/net/netrom.h b/include/net/netrom.h
index 443a4ffca7aa..0dad2dd5f9d7 100644
--- a/include/net/netrom.h
+++ b/include/net/netrom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of NET/ROM type objects.
  *
diff --git a/include/net/nexthop.h b/include/net/nexthop.h
index 3334dbfa5aa4..36bb794f5cd6 100644
--- a/include/net/nexthop.h
+++ b/include/net/nexthop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_NEXTHOP_H
 #define __NET_NEXTHOP_H
 
diff --git a/include/net/p8022.h b/include/net/p8022.h
index 05e41383856b..c2bacc66bfbc 100644
--- a/include/net/p8022.h
+++ b/include/net/p8022.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_P8022_H
 #define _NET_P8022_H
 struct datalink_proto *
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index e80edd8879ef..8826747ef83e 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_PKT_CLS_H
 #define __NET_PKT_CLS_H
 
 #include <linux/pkt_cls.h>
+#include <linux/workqueue.h>
 #include <net/sch_generic.h>
 #include <net/act_api.h>
 
@@ -17,6 +19,8 @@ struct tcf_walker {
 int register_tcf_proto_ops(struct tcf_proto_ops *ops);
 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops);
 
+bool tcf_queue_work(struct work_struct *work);
+
 #ifdef CONFIG_NET_CLS
 struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
 				bool create);
@@ -90,6 +94,7 @@ struct tcf_exts {
 	__u32	type; /* for backward compat(TCA_OLD_COMPAT) */
 	int nr_actions;
 	struct tc_action **actions;
+	struct net *net;
 #endif
 	/* Map to export classifier specific extension TLV types to the
 	 * generic extensions API. Unsupported extensions must be set to 0.
@@ -103,6 +108,7 @@ static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police)
 #ifdef CONFIG_NET_CLS_ACT
 	exts->type = 0;
 	exts->nr_actions = 0;
+	exts->net = NULL;
 	exts->actions = kcalloc(TCA_ACT_MAX_PRIO, sizeof(struct tc_action *),
 				GFP_KERNEL);
 	if (!exts->actions)
@@ -113,6 +119,28 @@ static inline int tcf_exts_init(struct tcf_exts *exts, int action, int police)
 	return 0;
 }
 
+/* Return false if the netns is being destroyed in cleanup_net(). Callers
+ * need to do cleanup synchronously in this case, otherwise may race with
+ * tc_action_net_exit(). Return true for other cases.
+ */
+static inline bool tcf_exts_get_net(struct tcf_exts *exts)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	exts->net = maybe_get_net(exts->net);
+	return exts->net != NULL;
+#else
+	return true;
+#endif
+}
+
+static inline void tcf_exts_put_net(struct tcf_exts *exts)
+{
+#ifdef CONFIG_NET_CLS_ACT
+	if (exts->net)
+		put_net(exts->net);
+#endif
+}
+
 static inline void tcf_exts_to_list(const struct tcf_exts *exts,
 				    struct list_head *actions)
 {
diff --git a/include/net/pkt_sched.h b/include/net/pkt_sched.h
index 259bc191ba59..b3869f97d37d 100644
--- a/include/net/pkt_sched.h
+++ b/include/net/pkt_sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_PKT_SCHED_H
 #define __NET_PKT_SCHED_H
 
diff --git a/include/net/pptp.h b/include/net/pptp.h
index 92e9f1fe2628..383e25ca53a7 100644
--- a/include/net/pptp.h
+++ b/include/net/pptp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_PPTP_H
 #define _NET_PPTP_H
 
diff --git a/include/net/protocol.h b/include/net/protocol.h
index 65ba335b0e7e..4fc75f7ae23b 100644
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -39,8 +39,8 @@
 
 /* This is used to register protocols. */
 struct net_protocol {
-	void			(*early_demux)(struct sk_buff *skb);
-	void                    (*early_demux_handler)(struct sk_buff *skb);
+	int			(*early_demux)(struct sk_buff *skb);
+	int			(*early_demux_handler)(struct sk_buff *skb);
 	int			(*handler)(struct sk_buff *skb);
 	void			(*err_handler)(struct sk_buff *skb, u32 info);
 	unsigned int		no_policy:1,
diff --git a/include/net/psample.h b/include/net/psample.h
index 8888b0e1a82e..9b80f814ab04 100644
--- a/include/net/psample.h
+++ b/include/net/psample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_PSAMPLE_H
 #define __NET_PSAMPLE_H
 
diff --git a/include/net/psnap.h b/include/net/psnap.h
index 78db4cc1306a..7cb0c8ab4171 100644
--- a/include/net/psnap.h
+++ b/include/net/psnap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_PSNAP_H
 #define _NET_PSNAP_H
 
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
index 4addc5c988e0..53d86b6055e8 100644
--- a/include/net/rawv6.h
+++ b/include/net/rawv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_RAWV6_H
 #define _NET_RAWV6_H
 
diff --git a/include/net/red.h b/include/net/red.h
index 208e718e16b9..9a9347710701 100644
--- a/include/net/red.h
+++ b/include/net/red.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_SCHED_RED_H
 #define __NET_SCHED_RED_H
 
diff --git a/include/net/rose.h b/include/net/rose.h
index 50811fe2c585..04b72681f2ab 100644
--- a/include/net/rose.h
+++ b/include/net/rose.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of Rose type objects.
  *
diff --git a/include/net/route.h b/include/net/route.h
index 1b09a9368c68..d538e6db1afe 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -175,7 +175,9 @@ static inline struct rtable *ip_route_output_gre(struct net *net, struct flowi4
 	fl4->fl4_gre_key = gre_key;
 	return ip_route_output_key(net, fl4);
 }
-
+int ip_mc_validate_source(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+			  u8 tos, struct net_device *dev,
+			  struct in_device *in_dev, u32 *itag);
 int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src,
 			 u8 tos, struct net_device *devin);
 int ip_route_input_rcu(struct sk_buff *skb, __be32 dst, __be32 src,
@@ -190,7 +192,7 @@ static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src,
 	rcu_read_lock();
 	err = ip_route_input_noref(skb, dst, src, tos, devin);
 	if (!err) {
-		skb_dst_force_safe(skb);
+		skb_dst_force(skb);
 		if (!skb_dst(skb))
 			err = -EINVAL;
 	}
diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 21837ca68ecc..7b938fbeebc1 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_RTNETLINK_H
 #define __NET_RTNETLINK_H
 
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 135f5a2dd931..236bfe5b2ffe 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_SCHED_GENERIC_H
 #define __NET_SCHED_GENERIC_H
 
@@ -10,6 +11,7 @@
 #include <linux/dynamic_queue_limits.h>
 #include <linux/list.h>
 #include <linux/refcount.h>
+#include <linux/workqueue.h>
 #include <net/gen_stats.h>
 #include <net/rtnetlink.h>
 
@@ -271,6 +273,7 @@ struct tcf_chain {
 
 struct tcf_block {
 	struct list_head chain_list;
+	struct work_struct work;
 };
 
 static inline void qdisc_cb_private_validate(const struct sk_buff *skb, int sz)
diff --git a/include/net/scm.h b/include/net/scm.h
index 142ea9e7a6d0..903771c8d4e3 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_NET_SCM_H
 #define __LINUX_NET_SCM_H
 
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 06b4f515e157..d7d8cba01469 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -127,7 +127,8 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
 				  const union sctp_addr *laddr,
 				  const union sctp_addr *paddr, void *p);
 int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
-			    struct net *net, int pos, void *p);
+			    int (*cb_done)(struct sctp_transport *, void *),
+			    struct net *net, int *pos, void *p);
 int sctp_for_each_endpoint(int (*cb)(struct sctp_endpoint *, void *), void *p);
 int sctp_get_sctp_info(struct sock *sk, struct sctp_association *asoc,
 		       struct sctp_info *info);
diff --git a/include/net/sctp/sm.h b/include/net/sctp/sm.h
index 2db3d3a9ce1d..88233cf8b8d4 100644
--- a/include/net/sctp/sm.h
+++ b/include/net/sctp/sm.h
@@ -261,7 +261,7 @@ struct sctp_chunk *sctp_make_fwdtsn(const struct sctp_association *asoc,
 				    struct sctp_fwdtsn_skip *skiplist);
 struct sctp_chunk *sctp_make_auth(const struct sctp_association *asoc);
 struct sctp_chunk *sctp_make_strreset_req(const struct sctp_association *asoc,
-					  __u16 stream_num, __u16 *stream_list,
+					  __u16 stream_num, __be16 *stream_list,
 					  bool out, bool in);
 struct sctp_chunk *sctp_make_strreset_tsnreq(
 					const struct sctp_association *asoc);
diff --git a/include/net/sctp/ulpevent.h b/include/net/sctp/ulpevent.h
index 1060494ac230..231dc42f1da6 100644
--- a/include/net/sctp/ulpevent.h
+++ b/include/net/sctp/ulpevent.h
@@ -130,7 +130,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_sender_dry_event(
 
 struct sctp_ulpevent *sctp_ulpevent_make_stream_reset_event(
 	const struct sctp_association *asoc, __u16 flags,
-	__u16 stream_num, __u16 *stream_list, gfp_t gfp);
+	__u16 stream_num, __be16 *stream_list, gfp_t gfp);
 
 struct sctp_ulpevent *sctp_ulpevent_make_assoc_reset_event(
 	const struct sctp_association *asoc, __u16 flags,
@@ -153,8 +153,12 @@ __u16 sctp_ulpevent_get_notification_type(const struct sctp_ulpevent *event);
 static inline int sctp_ulpevent_type_enabled(__u16 sn_type,
 					     struct sctp_event_subscribe *mask)
 {
+	int offset = sn_type - SCTP_SN_TYPE_BASE;
 	char *amask = (char *) mask;
-	return amask[sn_type - SCTP_SN_TYPE_BASE];
+
+	if (offset >= sizeof(struct sctp_event_subscribe))
+		return 0;
+	return amask[offset];
 }
 
 /* Given an event subscription, is this event enabled? */
diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
index 031bf16d1521..d7d2495f83c2 100644
--- a/include/net/secure_seq.h
+++ b/include/net/secure_seq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_SECURE_SEQ
 #define _NET_SECURE_SEQ
 
diff --git a/include/net/smc.h b/include/net/smc.h
index 12d26358ad9f..8381d163fefa 100644
--- a/include/net/smc.h
+++ b/include/net/smc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/include/net/sock.h b/include/net/sock.h
index 03a362568357..a6b9a8d1a6df 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -856,7 +856,7 @@ void sk_stream_write_space(struct sock *sk);
 static inline void __sk_add_backlog(struct sock *sk, struct sk_buff *skb)
 {
 	/* dont let skb dst not refcounted, we are going to leave rcu lock */
-	skb_dst_force_safe(skb);
+	skb_dst_force(skb);
 
 	if (!sk->sk_backlog.tail)
 		sk->sk_backlog.head = skb;
diff --git a/include/net/sock_reuseport.h b/include/net/sock_reuseport.h
index aecd30308d50..0054b3a9b923 100644
--- a/include/net/sock_reuseport.h
+++ b/include/net/sock_reuseport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SOCK_REUSEPORT_H
 #define _SOCK_REUSEPORT_H
 
diff --git a/include/net/stp.h b/include/net/stp.h
index 3af174d70d9e..2914e6d53490 100644
--- a/include/net/stp.h
+++ b/include/net/stp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_STP_H
 #define _NET_STP_H
 
diff --git a/include/net/strparser.h b/include/net/strparser.h
index 7dc131d62ad5..d96b59f45eba 100644
--- a/include/net/strparser.h
+++ b/include/net/strparser.h
@@ -74,10 +74,9 @@ struct strparser {
 	u32 unrecov_intr : 1;
 
 	struct sk_buff **skb_nextp;
-	struct timer_list msg_timer;
 	struct sk_buff *skb_head;
 	unsigned int need_bytes;
-	struct delayed_work delayed_work;
+	struct delayed_work msg_timer_work;
 	struct work_struct work;
 	struct strp_stats stats;
 	struct strp_callbacks cb;
diff --git a/include/net/tc_act/tc_connmark.h b/include/net/tc_act/tc_connmark.h
index 59b515d32bb4..1f4cb477bb5d 100644
--- a/include/net/tc_act/tc_connmark.h
+++ b/include/net/tc_act/tc_connmark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_CONNMARK_H
 #define __NET_TC_CONNMARK_H
 
diff --git a/include/net/tc_act/tc_csum.h b/include/net/tc_act/tc_csum.h
index 3248beaf16b0..781f3433a0be 100644
--- a/include/net/tc_act/tc_csum.h
+++ b/include/net/tc_act/tc_csum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_CSUM_H
 #define __NET_TC_CSUM_H
 
diff --git a/include/net/tc_act/tc_defact.h b/include/net/tc_act/tc_defact.h
index d47f040a3bdf..d7ba0402a732 100644
--- a/include/net/tc_act/tc_defact.h
+++ b/include/net/tc_act/tc_defact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_DEF_H
 #define __NET_TC_DEF_H
 
diff --git a/include/net/tc_act/tc_gact.h b/include/net/tc_act/tc_gact.h
index 41afe1ce7b16..e82d93346b63 100644
--- a/include/net/tc_act/tc_gact.h
+++ b/include/net/tc_act/tc_gact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_GACT_H
 #define __NET_TC_GACT_H
 
diff --git a/include/net/tc_act/tc_ife.h b/include/net/tc_act/tc_ife.h
index 30ba459ddd34..ba6667125bcd 100644
--- a/include/net/tc_act/tc_ife.h
+++ b/include/net/tc_act/tc_ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_IFE_H
 #define __NET_TC_IFE_H
 
diff --git a/include/net/tc_act/tc_ipt.h b/include/net/tc_act/tc_ipt.h
index 31309766e379..4225fcb1c6ba 100644
--- a/include/net/tc_act/tc_ipt.h
+++ b/include/net/tc_act/tc_ipt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_IPT_H
 #define __NET_TC_IPT_H
 
diff --git a/include/net/tc_act/tc_mirred.h b/include/net/tc_act/tc_mirred.h
index 604bc31e23ab..b2dbbfaefd22 100644
--- a/include/net/tc_act/tc_mirred.h
+++ b/include/net/tc_act/tc_mirred.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_MIR_H
 #define __NET_TC_MIR_H
 
diff --git a/include/net/tc_act/tc_nat.h b/include/net/tc_act/tc_nat.h
index 56681a320612..c14407160812 100644
--- a/include/net/tc_act/tc_nat.h
+++ b/include/net/tc_act/tc_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_NAT_H
 #define __NET_TC_NAT_H
 
diff --git a/include/net/tc_act/tc_pedit.h b/include/net/tc_act/tc_pedit.h
index a46c3f2ace70..227a6f1d02f4 100644
--- a/include/net/tc_act/tc_pedit.h
+++ b/include/net/tc_act/tc_pedit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_PED_H
 #define __NET_TC_PED_H
 
diff --git a/include/net/tc_act/tc_sample.h b/include/net/tc_act/tc_sample.h
index 89e9305be880..524cee4f4c81 100644
--- a/include/net/tc_act/tc_sample.h
+++ b/include/net/tc_act/tc_sample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_TC_SAMPLE_H
 #define __NET_TC_SAMPLE_H
 
diff --git a/include/net/tcp.h b/include/net/tcp.h
index b510f284427a..e6d0002a1b0b 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -345,7 +345,7 @@ void tcp_v4_err(struct sk_buff *skb, u32);
 
 void tcp_shutdown(struct sock *sk, int how);
 
-void tcp_v4_early_demux(struct sk_buff *skb);
+int tcp_v4_early_demux(struct sk_buff *skb);
 int tcp_v4_rcv(struct sk_buff *skb);
 
 int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);
@@ -544,7 +544,6 @@ u32 tcp_tso_autosize(const struct sock *sk, unsigned int mss_now,
 		     int min_tso_segs);
 void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
 			       int nonagle);
-bool tcp_may_send_now(struct sock *sk);
 int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs);
 int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs);
 void tcp_retransmit_timer(struct sock *sk);
@@ -841,6 +840,12 @@ struct tcp_skb_cb {
 			struct inet6_skb_parm	h6;
 #endif
 		} header;	/* For incoming skbs */
+		struct {
+			__u32 key;
+			__u32 flags;
+			struct bpf_map *map;
+			void *data_end;
+		} bpf;
 	};
 };
 
@@ -1766,12 +1771,12 @@ static inline void tcp_highest_sack_reset(struct sock *sk)
 	tcp_sk(sk)->highest_sack = tcp_write_queue_head(sk);
 }
 
-/* Called when old skb is about to be deleted (to be combined with new skb) */
-static inline void tcp_highest_sack_combine(struct sock *sk,
+/* Called when old skb is about to be deleted and replaced by new skb */
+static inline void tcp_highest_sack_replace(struct sock *sk,
 					    struct sk_buff *old,
 					    struct sk_buff *new)
 {
-	if (tcp_sk(sk)->sacked_out && (old == tcp_sk(sk)->highest_sack))
+	if (old == tcp_highest_sack(sk))
 		tcp_sk(sk)->highest_sack = new;
 }
 
diff --git a/include/net/transp_v6.h b/include/net/transp_v6.h
index 276f9760ab56..c4f5caaf3778 100644
--- a/include/net/transp_v6.h
+++ b/include/net/transp_v6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TRANSP_V6_H
 #define _TRANSP_V6_H
 
diff --git a/include/net/tso.h b/include/net/tso.h
index 9a56c39e6d0a..7e166a570349 100644
--- a/include/net/tso.h
+++ b/include/net/tso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TSO_H
 #define _TSO_H
 
diff --git a/include/net/udp.h b/include/net/udp.h
index 12dfbfe2e2d7..6c759c8594e2 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -259,7 +259,7 @@ static inline struct sk_buff *skb_recv_udp(struct sock *sk, unsigned int flags,
 	return __skb_recv_udp(sk, flags, noblock, &peeked, &off, err);
 }
 
-void udp_v4_early_demux(struct sk_buff *skb);
+int udp_v4_early_demux(struct sk_buff *skb);
 bool udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst);
 int udp_get_port(struct sock *sk, unsigned short snum,
 		 int (*saddr_cmp)(const struct sock *,
diff --git a/include/net/udp_tunnel.h b/include/net/udp_tunnel.h
index 10cce0dd4450..b95a6927c718 100644
--- a/include/net/udp_tunnel.h
+++ b/include/net/udp_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_UDP_TUNNEL_H
 #define __NET_UDP_TUNNEL_H
 
diff --git a/include/net/udplite.h b/include/net/udplite.h
index b7a18f63d86d..81bdbf97319b 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Definitions for the UDP-Lite (RFC 3828) code.
  */
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 4e3876dde295..13223396dc64 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_VXLAN_H
 #define __NET_VXLAN_H 1
 
diff --git a/include/net/wext.h b/include/net/wext.h
index 454ff763eeba..e51f067fdb3a 100644
--- a/include/net/wext.h
+++ b/include/net/wext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_WEXT_H
 #define __NET_WEXT_H
 
diff --git a/include/net/x25.h b/include/net/x25.h
index 2609b57bd459..ed1acc3044ac 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	Declarations of X.25 Packet Layer type objects.
  *
diff --git a/include/net/x25device.h b/include/net/x25device.h
index 1fa08b49f1c2..cf749efca24d 100644
--- a/include/net/x25device.h
+++ b/include/net/x25device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _X25DEVICE_H
 #define _X25DEVICE_H
 
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index f002a2c5e33c..e015e164bac0 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NET_XFRM_H
 #define _NET_XFRM_H
 
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 429f46fb61e4..9c689868eb4d 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ras
 #define TRACE_INCLUDE_FILE ras_event
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index bdb1279a415b..e8608b2dc844 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -285,7 +285,7 @@ enum ib_tm_cap_flags {
 	IB_TM_CAP_RC		    = 1 << 0,
 };
 
-struct ib_xrq_caps {
+struct ib_tm_caps {
 	/* Max size of RNDV header */
 	u32 max_rndv_hdr_size;
 	/* Max number of entries in tag matching list */
@@ -358,7 +358,7 @@ struct ib_device_attr {
 	struct ib_rss_caps	rss_caps;
 	u32			max_wq_type_rq;
 	u32			raw_packet_caps; /* Use ib_raw_packet_caps enum */
-	struct ib_xrq_caps	xrq_caps;
+	struct ib_tm_caps	tm_caps;
 };
 
 enum ib_mtu {
@@ -1739,7 +1739,7 @@ struct ib_mr {
 	u32		   lkey;
 	u32		   rkey;
 	u64		   iova;
-	u32		   length;
+	u64		   length;
 	unsigned int	   page_size;
 	bool		   need_inval;
 	union {
diff --git a/include/rdma/rdma_netlink.h b/include/rdma/rdma_netlink.h
index 2d878596b1e0..c369703fcd69 100644
--- a/include/rdma/rdma_netlink.h
+++ b/include/rdma/rdma_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDMA_NETLINK_H
 #define _RDMA_NETLINK_H
 
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 722d3264d3bf..cb8a273732cf 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -382,7 +382,7 @@ static inline struct net_device *fcoe_get_netdev(const struct fc_lport *lport)
 
 void fcoe_clean_pending_queue(struct fc_lport *);
 void fcoe_check_wait_queue(struct fc_lport *lport, struct sk_buff *skb);
-void fcoe_queue_timer(ulong lport);
+void fcoe_queue_timer(struct timer_list *t);
 int fcoe_get_paged_crc_eof(struct sk_buff *skb, int tlen,
 			   struct fcoe_percpu_s *fps);
 
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index ab6e18f1c01f..0f9cbf96c093 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -605,6 +605,7 @@ struct sas_task_slow {
 	 */
 	struct timer_list     timer;
 	struct completion     completion;
+	struct sas_task       *task;
 };
 
 #define SAS_TASK_STATE_PENDING      1
diff --git a/include/scsi/osd_attributes.h b/include/scsi/osd_attributes.h
index 303ba1118a4d..8a6acd054e4e 100644
--- a/include/scsi/osd_attributes.h
+++ b/include/scsi/osd_attributes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __OSD_ATTRIBUTES_H__
 #define __OSD_ATTRIBUTES_H__
 
diff --git a/include/scsi/scsi.h b/include/scsi/scsi.h
index a1e1930b7a87..cb85eddb47ea 100644
--- a/include/scsi/scsi.h
+++ b/include/scsi/scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header file contains public constants and structures used by
  * the SCSI initiator code.
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index 3d3f8b342e05..7fb57e905526 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_CMND_H
 #define _SCSI_SCSI_CMND_H
 
diff --git a/include/scsi/scsi_common.h b/include/scsi/scsi_common.h
index 20bf7eaef05a..731ac09ed231 100644
--- a/include/scsi/scsi_common.h
+++ b/include/scsi/scsi_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Functions used by both the SCSI initiator code and the SCSI target code.
  */
diff --git a/include/scsi/scsi_dbg.h b/include/scsi/scsi_dbg.h
index 56710e03101c..04e0679767f6 100644
--- a/include/scsi/scsi_dbg.h
+++ b/include/scsi/scsi_dbg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DBG_H
 #define _SCSI_SCSI_DBG_H
 
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index d68985c366b0..1fb6ad3c5006 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DEVICE_H
 #define _SCSI_SCSI_DEVICE_H
 
@@ -193,6 +194,7 @@ struct scsi_device {
 	unsigned no_dif:1;	/* T10 PI (DIF) should be disabled */
 	unsigned broken_fua:1;		/* Don't set FUA bit */
 	unsigned lun_in_cdb:1;		/* Store LUN bits in CDB[1] */
+	unsigned unmap_limit_for_ws:1;	/* Use the UNMAP limit for WRITE SAME */
 
 	atomic_t disk_events_disable_depth; /* disable depth for disk events */
 
@@ -220,6 +222,7 @@ struct scsi_device {
 	unsigned char		access_state;
 	struct mutex		state_mutex;
 	enum scsi_device_state sdev_state;
+	struct task_struct	*quiesced_by;
 	unsigned long		sdev_data[0];
 } __attribute__((aligned(sizeof(unsigned long))));
 
diff --git a/include/scsi/scsi_devinfo.h b/include/scsi/scsi_devinfo.h
index 7a2329c026a4..3cf125b56c3a 100644
--- a/include/scsi/scsi_devinfo.h
+++ b/include/scsi/scsi_devinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DEVINFO_H
 #define _SCSI_SCSI_DEVINFO_H
 /*
@@ -53,5 +54,7 @@
 #define BLIST_NO_RSOC		((__force __u32 __bitwise)(1 << 29))
 /* maximum 1024 sector cdb length */
 #define BLIST_MAX_1024		((__force __u32 __bitwise)(1 << 30))
+/* Use UNMAP limit for WRITE SAME */
+#define BLIST_UNMAP_LIMIT_WS	((__force __u32 __bitwise)(1 << 31))
 
 #endif
diff --git a/include/scsi/scsi_driver.h b/include/scsi/scsi_driver.h
index a5534ccad859..fae8b465233e 100644
--- a/include/scsi/scsi_driver.h
+++ b/include/scsi/scsi_driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_DRIVER_H
 #define _SCSI_SCSI_DRIVER_H
 
diff --git a/include/scsi/scsi_eh.h b/include/scsi/scsi_eh.h
index 64d30d80dadb..2b7e227960e1 100644
--- a/include/scsi/scsi_eh.h
+++ b/include/scsi/scsi_eh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_EH_H
 #define _SCSI_SCSI_EH_H
 
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 0a804b1a4726..a8b7bf879ced 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_HOST_H
 #define _SCSI_SCSI_HOST_H
 
diff --git a/include/scsi/scsi_ioctl.h b/include/scsi/scsi_ioctl.h
index 8d19d1d233c3..5101e987c0ef 100644
--- a/include/scsi/scsi_ioctl.h
+++ b/include/scsi/scsi_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_IOCTL_H
 #define _SCSI_IOCTL_H 
 
diff --git a/include/scsi/scsi_proto.h b/include/scsi/scsi_proto.h
index 39130a9c05bf..1df8efb0ee01 100644
--- a/include/scsi/scsi_proto.h
+++ b/include/scsi/scsi_proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header file contains public constants and structures used by
  * both the SCSI initiator and the SCSI target code.
diff --git a/include/scsi/scsi_request.h b/include/scsi/scsi_request.h
index e0afa445ee4e..b06f28c74908 100644
--- a/include/scsi/scsi_request.h
+++ b/include/scsi/scsi_request.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_REQUEST_H
 #define _SCSI_SCSI_REQUEST_H
 
diff --git a/include/scsi/scsi_tcq.h b/include/scsi/scsi_tcq.h
index 5b416debf101..e192a0caa850 100644
--- a/include/scsi/scsi_tcq.h
+++ b/include/scsi/scsi_tcq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_SCSI_TCQ_H
 #define _SCSI_SCSI_TCQ_H
 
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 6183d20a01fb..b266d2a3bcb1 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -434,7 +434,6 @@ extern struct iscsi_cls_session *iscsi_create_session(struct Scsi_Host *shost,
 						unsigned int target_id);
 extern void iscsi_remove_session(struct iscsi_cls_session *session);
 extern void iscsi_free_session(struct iscsi_cls_session *session);
-extern int iscsi_destroy_session(struct iscsi_cls_session *session);
 extern struct iscsi_cls_conn *iscsi_create_conn(struct iscsi_cls_session *sess,
 						int dd_size, uint32_t cid);
 extern int iscsi_destroy_conn(struct iscsi_cls_conn *conn);
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index a23304b7fb2e..62895b405933 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SCSI_TRANSPORT_SAS_H
 #define SCSI_TRANSPORT_SAS_H
 
diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h
index 56ae198acc73..d22df12584f9 100644
--- a/include/scsi/scsi_transport_srp.h
+++ b/include/scsi/scsi_transport_srp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SCSI_TRANSPORT_SRP_H
 #define SCSI_TRANSPORT_SRP_H
 
diff --git a/include/scsi/scsicam.h b/include/scsi/scsicam.h
index 24ede474752e..57c729254569 100644
--- a/include/scsi/scsicam.h
+++ b/include/scsi/scsicam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * scsicam.h - SCSI CAM support functions, use for HDIO_GETGEO, etc.
  *
diff --git a/include/scsi/sg.h b/include/scsi/sg.h
index 20bc71c3e0b8..f91bcca604e4 100644
--- a/include/scsi/sg.h
+++ b/include/scsi/sg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SCSI_GENERIC_H
 #define _SCSI_GENERIC_H
 
diff --git a/include/sound/aci.h b/include/sound/aci.h
index ee639d355ef0..6ebbd4223f12 100644
--- a/include/sound/aci.h
+++ b/include/sound/aci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ACI_H_
 #define _ACI_H_
 
diff --git a/include/sound/alc5623.h b/include/sound/alc5623.h
index 422c97d43df3..0ebb0f6fce54 100644
--- a/include/sound/alc5623.h
+++ b/include/sound/alc5623.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _INCLUDE_SOUND_ALC5623_H
 #define _INCLUDE_SOUND_ALC5623_H
 struct alc5623_platform_data {
diff --git a/include/sound/control.h b/include/sound/control.h
index bd7246de58e7..a1f1152bc687 100644
--- a/include/sound/control.h
+++ b/include/sound/control.h
@@ -248,6 +248,9 @@ int snd_ctl_add_vmaster_hook(struct snd_kcontrol *kctl,
 			     void *private_data);
 void snd_ctl_sync_vmaster(struct snd_kcontrol *kctl, bool hook_only);
 #define snd_ctl_sync_vmaster_hook(kctl)	snd_ctl_sync_vmaster(kctl, true)
+int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
+				 int (*func)(struct snd_kcontrol *, void *),
+				 void *arg);
 
 /*
  * Helper functions for jack-detection controls
diff --git a/include/sound/hda_chmap.h b/include/sound/hda_chmap.h
index babd445c7505..e508f3192294 100644
--- a/include/sound/hda_chmap.h
+++ b/include/sound/hda_chmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * For multichannel support
  */
diff --git a/include/sound/hda_i915.h b/include/sound/hda_i915.h
index 5ab972e116ec..a94f5b6f92ac 100644
--- a/include/sound/hda_i915.h
+++ b/include/sound/hda_i915.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-Audio helpers to sync with i915 driver
  */
diff --git a/include/sound/hda_register.h b/include/sound/hda_register.h
index 15fc6daf9096..2ab39fb52d7a 100644
--- a/include/sound/hda_register.h
+++ b/include/sound/hda_register.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio controller (Azalia) registers and helpers
  *
diff --git a/include/sound/hda_regmap.h b/include/sound/hda_regmap.h
index ca64f0f50b45..5141f8ffbb12 100644
--- a/include/sound/hda_regmap.h
+++ b/include/sound/hda_regmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio regmap helpers
  */
diff --git a/include/sound/hda_verbs.h b/include/sound/hda_verbs.h
index d0509db6d0ec..2a8573a00ea6 100644
--- a/include/sound/hda_verbs.h
+++ b/include/sound/hda_verbs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio codec verbs
  */
@@ -95,6 +96,7 @@ enum {
 #define AC_VERB_SET_EAPD_BTLENABLE		0x70c
 #define AC_VERB_SET_DIGI_CONVERT_1		0x70d
 #define AC_VERB_SET_DIGI_CONVERT_2		0x70e
+#define AC_VERB_SET_DIGI_CONVERT_3		0x73e
 #define AC_VERB_SET_VOLUME_KNOB_CONTROL		0x70f
 #define AC_VERB_SET_GPIO_DATA			0x715
 #define AC_VERB_SET_GPIO_MASK			0x716
diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h
index 96546b30e900..d8afd8a5bd76 100644
--- a/include/sound/hdaudio.h
+++ b/include/sound/hdaudio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * HD-audio core stuff
  */
diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h
index 8660a7f10851..ca00130cb028 100644
--- a/include/sound/hdaudio_ext.h
+++ b/include/sound/hdaudio_ext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_HDAUDIO_EXT_H
 #define __SOUND_HDAUDIO_EXT_H
 
diff --git a/include/sound/l3.h b/include/sound/l3.h
index 1471da22adad..b6f58072237a 100644
--- a/include/sound/l3.h
+++ b/include/sound/l3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _L3_H_
 #define _L3_H_ 1
 
diff --git a/include/sound/pcm_drm_eld.h b/include/sound/pcm_drm_eld.h
index 93357b25d2e2..28a55a8beb28 100644
--- a/include/sound/pcm_drm_eld.h
+++ b/include/sound/pcm_drm_eld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_PCM_DRM_ELD_H
 #define __SOUND_PCM_DRM_ELD_H
 
diff --git a/include/sound/pcm_iec958.h b/include/sound/pcm_iec958.h
index 36f023acb201..0939aa45e2fe 100644
--- a/include/sound/pcm_iec958.h
+++ b/include/sound/pcm_iec958.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_PCM_IEC958_H
 #define __SOUND_PCM_IEC958_H
 
diff --git a/include/sound/pxa2xx-lib.h b/include/sound/pxa2xx-lib.h
index 6ef629bde164..5e710d848bd3 100644
--- a/include/sound/pxa2xx-lib.h
+++ b/include/sound/pxa2xx-lib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PXA2XX_LIB_H
 #define PXA2XX_LIB_H
 
diff --git a/include/sound/s3c24xx_uda134x.h b/include/sound/s3c24xx_uda134x.h
index ffaf1f098c8e..0232b80ff486 100644
--- a/include/sound/s3c24xx_uda134x.h
+++ b/include/sound/s3c24xx_uda134x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _S3C24XX_UDA134X_H_
 #define _S3C24XX_UDA134X_H_ 1
 
diff --git a/include/sound/seq_kernel.h b/include/sound/seq_kernel.h
index feb58d455560..4b9ee3009aa0 100644
--- a/include/sound/seq_kernel.h
+++ b/include/sound/seq_kernel.h
@@ -49,7 +49,8 @@ typedef union snd_seq_timestamp snd_seq_timestamp_t;
 #define SNDRV_SEQ_DEFAULT_CLIENT_EVENTS	200
 
 /* max delivery path length */
-#define SNDRV_SEQ_MAX_HOPS		10
+/* NOTE: this shouldn't be greater than MAX_LOCKDEP_SUBCLASSES */
+#define SNDRV_SEQ_MAX_HOPS		8
 
 /* max size of event size */
 #define SNDRV_SEQ_MAX_EVENT_LEN		0x3fffffff
diff --git a/include/sound/seq_virmidi.h b/include/sound/seq_virmidi.h
index a03acd0d398a..695257ae64ac 100644
--- a/include/sound/seq_virmidi.h
+++ b/include/sound/seq_virmidi.h
@@ -60,6 +60,7 @@ struct snd_virmidi_dev {
 	int port;			/* created/attached port */
 	unsigned int flags;		/* SNDRV_VIRMIDI_* */
 	rwlock_t filelist_lock;
+	struct rw_semaphore filelist_sem;
 	struct list_head filelist;
 };
 
diff --git a/include/sound/snd_wavefront.h b/include/sound/snd_wavefront.h
index cd0bab1ef6f1..6231eb57361f 100644
--- a/include/sound/snd_wavefront.h
+++ b/include/sound/snd_wavefront.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_SND_WAVEFRONT_H__
 #define __SOUND_SND_WAVEFRONT_H__
 
diff --git a/include/sound/tas5086.h b/include/sound/tas5086.h
index aac481b7db8f..a0a1c380f359 100644
--- a/include/sound/tas5086.h
+++ b/include/sound/tas5086.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SND_SOC_CODEC_TAS5086_H_
 #define _SND_SOC_CODEC_TAS5086_H_
 
diff --git a/include/sound/timer.h b/include/sound/timer.h
index c4d76ff056c6..7ae226ab6990 100644
--- a/include/sound/timer.h
+++ b/include/sound/timer.h
@@ -90,6 +90,8 @@ struct snd_timer {
 	struct list_head ack_list_head;
 	struct list_head sack_list_head; /* slow ack list head */
 	struct tasklet_struct task_queue;
+	int max_instances;	/* upper limit of timer instances */
+	int num_instances;	/* current number of timer instances */
 };
 
 struct snd_timer_instance {
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index fb87d32f5e51..cf5f3fff1f1a 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_CORE_H
 #define ISCSI_TARGET_CORE_H
 
diff --git a/include/target/iscsi/iscsi_target_stat.h b/include/target/iscsi/iscsi_target_stat.h
index c27dd471656d..4d75a2c426ca 100644
--- a/include/target/iscsi/iscsi_target_stat.h
+++ b/include/target/iscsi/iscsi_target_stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ISCSI_TARGET_STAT_H
 #define ISCSI_TARGET_STAT_H
 
@@ -8,16 +9,16 @@
 /*
  * For struct iscsi_tiqn->tiqn_wwn default groups
  */
-extern struct config_item_type iscsi_stat_instance_cit;
-extern struct config_item_type iscsi_stat_sess_err_cit;
-extern struct config_item_type iscsi_stat_tgt_attr_cit;
-extern struct config_item_type iscsi_stat_login_cit;
-extern struct config_item_type iscsi_stat_logout_cit;
+extern const struct config_item_type iscsi_stat_instance_cit;
+extern const struct config_item_type iscsi_stat_sess_err_cit;
+extern const struct config_item_type iscsi_stat_tgt_attr_cit;
+extern const struct config_item_type iscsi_stat_login_cit;
+extern const struct config_item_type iscsi_stat_logout_cit;
 
 /*
  * For struct iscsi_session->se_sess default groups
  */
-extern struct config_item_type iscsi_stat_sess_cit;
+extern const struct config_item_type iscsi_stat_sess_cit;
 
 /* iSCSI session error types */
 #define ISCSI_SESS_ERR_UNKNOWN		0
diff --git a/include/target/iscsi/iscsi_transport.h b/include/target/iscsi/iscsi_transport.h
index ff1a4f4cd66d..91948bc5b185 100644
--- a/include/target/iscsi/iscsi_transport.h
+++ b/include/target/iscsi/iscsi_transport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "iscsi_target_core.h" /* struct iscsi_cmd */
 
 struct sockaddr_storage;
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index e150e391878b..b6b3fb444a92 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_BACKEND_H
 #define TARGET_CORE_BACKEND_H
 
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 516764febeb7..f5db145e68ec 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_BASE_H
 #define TARGET_CORE_BASE_H
 
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 33d2e3e5773c..b297aa0d9651 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TARGET_CORE_FABRIC_H
 #define TARGET_CORE_FABRIC_H
 
diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index 6e3945f64102..d9e3d4aa3f6e 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Trace files that want to automate creation of all tracepoints defined
  * in their file should include this file. The following are macros that the
diff --git a/include/trace/events/9p.h b/include/trace/events/9p.h
index 633ee9ee9778..78c5608a1648 100644
--- a/include/trace/events/9p.h
+++ b/include/trace/events/9p.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM 9p
 
diff --git a/include/trace/events/alarmtimer.h b/include/trace/events/alarmtimer.h
index ae4f358dd8e9..13483c7ca70b 100644
--- a/include/trace/events/alarmtimer.h
+++ b/include/trace/events/alarmtimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM alarmtimer
 
diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h
index 9130dd5a184a..ccd1a3bdff46 100644
--- a/include/trace/events/asoc.h
+++ b/include/trace/events/asoc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM asoc
 
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index daf749138ff8..2cbd6e42ad83 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM bcache
 
diff --git a/include/trace/events/block.h b/include/trace/events/block.h
index 1fd7ff1a46f7..81b43f5bdf23 100644
--- a/include/trace/events/block.h
+++ b/include/trace/events/block.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM block
 
diff --git a/include/trace/events/bpf.h b/include/trace/events/bpf.h
index 52c8425d144b..cc749d7099fb 100644
--- a/include/trace/events/bpf.h
+++ b/include/trace/events/bpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM bpf
 
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index dc1d0df91e0b..4342a329821f 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM btrfs
 
@@ -28,6 +29,13 @@ struct btrfs_qgroup_extent_record;
 struct btrfs_qgroup;
 struct prelim_ref;
 
+TRACE_DEFINE_ENUM(FLUSH_DELAYED_ITEMS_NR);
+TRACE_DEFINE_ENUM(FLUSH_DELAYED_ITEMS);
+TRACE_DEFINE_ENUM(FLUSH_DELALLOC);
+TRACE_DEFINE_ENUM(FLUSH_DELALLOC_WAIT);
+TRACE_DEFINE_ENUM(ALLOC_CHUNK);
+TRACE_DEFINE_ENUM(COMMIT_TRANS);
+
 #define show_ref_type(type)						\
 	__print_symbolic(type,						\
 		{ BTRFS_TREE_BLOCK_REF_KEY, 	"TREE_BLOCK_REF" },	\
@@ -791,11 +799,10 @@ DEFINE_EVENT(btrfs_delayed_data_ref,  run_delayed_data_ref,
 DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
 
 	TP_PROTO(const struct btrfs_fs_info *fs_info,
-		 const struct btrfs_delayed_ref_node *ref,
 		 const struct btrfs_delayed_ref_head *head_ref,
 		 int action),
 
-	TP_ARGS(fs_info, ref, head_ref, action),
+	TP_ARGS(fs_info, head_ref, action),
 
 	TP_STRUCT__entry_btrfs(
 		__field(	u64,  bytenr		)
@@ -805,8 +812,8 @@ DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
 	),
 
 	TP_fast_assign_btrfs(fs_info,
-		__entry->bytenr		= ref->bytenr;
-		__entry->num_bytes	= ref->num_bytes;
+		__entry->bytenr		= head_ref->bytenr;
+		__entry->num_bytes	= head_ref->num_bytes;
 		__entry->action		= action;
 		__entry->is_data	= head_ref->is_data;
 	),
@@ -821,21 +828,19 @@ DECLARE_EVENT_CLASS(btrfs_delayed_ref_head,
 DEFINE_EVENT(btrfs_delayed_ref_head,  add_delayed_ref_head,
 
 	TP_PROTO(const struct btrfs_fs_info *fs_info,
-		 const struct btrfs_delayed_ref_node *ref,
 		 const struct btrfs_delayed_ref_head *head_ref,
 		 int action),
 
-	TP_ARGS(fs_info, ref, head_ref, action)
+	TP_ARGS(fs_info, head_ref, action)
 );
 
 DEFINE_EVENT(btrfs_delayed_ref_head,  run_delayed_ref_head,
 
 	TP_PROTO(const struct btrfs_fs_info *fs_info,
-		 const struct btrfs_delayed_ref_node *ref,
 		 const struct btrfs_delayed_ref_head *head_ref,
 		 int action),
 
-	TP_ARGS(fs_info, ref, head_ref, action)
+	TP_ARGS(fs_info, head_ref, action)
 );
 
 #define show_chunk_type(type)					\
@@ -1691,6 +1696,27 @@ DEFINE_EVENT(btrfs__prelim_ref, btrfs_prelim_ref_insert,
 	TP_ARGS(fs_info, oldref, newref, tree_size)
 );
 
+TRACE_EVENT(btrfs_inode_mod_outstanding_extents,
+	TP_PROTO(struct btrfs_root *root, u64 ino, int mod),
+
+	TP_ARGS(root, ino, mod),
+
+	TP_STRUCT__entry_btrfs(
+		__field(	u64, root_objectid	)
+		__field(	u64, ino		)
+		__field(	int, mod		)
+	),
+
+	TP_fast_assign_btrfs(root->fs_info,
+		__entry->root_objectid	= root->objectid;
+		__entry->ino		= ino;
+		__entry->mod		= mod;
+	),
+
+	TP_printk_btrfs("root=%llu(%s) ino=%llu mod=%d",
+			show_root_type(__entry->root_objectid),
+			(unsigned long long)__entry->ino, __entry->mod)
+);
 #endif /* _TRACE_BTRFS_H */
 
 /* This part must be outside protection */
diff --git a/include/trace/events/cgroup.h b/include/trace/events/cgroup.h
index c226f50e88fa..d74722c2ac8b 100644
--- a/include/trace/events/cgroup.h
+++ b/include/trace/events/cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cgroup
 
diff --git a/include/trace/events/cma.h b/include/trace/events/cma.h
index d7cd961720a7..5017a8829270 100644
--- a/include/trace/events/cma.h
+++ b/include/trace/events/cma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cma
 
diff --git a/include/trace/events/compaction.h b/include/trace/events/compaction.h
index 0a18ab6483ff..6074eff3d766 100644
--- a/include/trace/events/compaction.h
+++ b/include/trace/events/compaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM compaction
 
diff --git a/include/trace/events/context_tracking.h b/include/trace/events/context_tracking.h
index ce8007cf29cf..0aa6fd68fdf9 100644
--- a/include/trace/events/context_tracking.h
+++ b/include/trace/events/context_tracking.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM context_tracking
 
diff --git a/include/trace/events/cpuhp.h b/include/trace/events/cpuhp.h
index 996953db91d7..fe1d6e8cd99d 100644
--- a/include/trace/events/cpuhp.h
+++ b/include/trace/events/cpuhp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cpuhp
 
diff --git a/include/trace/events/devlink.h b/include/trace/events/devlink.h
index 09f1df228f2c..44acfbca1266 100644
--- a/include/trace/events/devlink.h
+++ b/include/trace/events/devlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if IS_ENABLED(CONFIG_NET_DEVLINK)
 
 #undef TRACE_SYSTEM
diff --git a/include/trace/events/dma_fence.h b/include/trace/events/dma_fence.h
index 1157cb4c3c6f..d61bfddcc621 100644
--- a/include/trace/events/dma_fence.h
+++ b/include/trace/events/dma_fence.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM dma_fence
 
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 9c3bc3883d2f..4d0e3af4e561 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ext4
 
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 5d216f7fb05a..7ab40491485b 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM f2fs
 
diff --git a/include/trace/events/fib.h b/include/trace/events/fib.h
index 833cfcb6750d..81b7e985bb45 100644
--- a/include/trace/events/fib.h
+++ b/include/trace/events/fib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fib
 
diff --git a/include/trace/events/fib6.h b/include/trace/events/fib6.h
index d60096cddb2a..d46e24702765 100644
--- a/include/trace/events/fib6.h
+++ b/include/trace/events/fib6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fib6
 
diff --git a/include/trace/events/filelock.h b/include/trace/events/filelock.h
index 63a7680347cb..d1faf3597b9d 100644
--- a/include/trace/events/filelock.h
+++ b/include/trace/events/filelock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Events for filesystem locks
  *
diff --git a/include/trace/events/filemap.h b/include/trace/events/filemap.h
index ff91325b8123..ee05db7ee8d2 100644
--- a/include/trace/events/filemap.h
+++ b/include/trace/events/filemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM filemap
 
diff --git a/include/trace/events/fs_dax.h b/include/trace/events/fs_dax.h
index fbc4a06f7310..8a8df5423dca 100644
--- a/include/trace/events/fs_dax.h
+++ b/include/trace/events/fs_dax.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fs_dax
 
diff --git a/include/trace/events/fsi.h b/include/trace/events/fsi.h
index 697ee6678892..92e5e89e52ed 100644
--- a/include/trace/events/fsi.h
+++ b/include/trace/events/fsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fsi
diff --git a/include/trace/events/fsi_master_gpio.h b/include/trace/events/fsi_master_gpio.h
index 11b36c119048..f95cf3264bf9 100644
--- a/include/trace/events/fsi_master_gpio.h
+++ b/include/trace/events/fsi_master_gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM fsi_master_gpio
diff --git a/include/trace/events/gpio.h b/include/trace/events/gpio.h
index 2da73b92d47e..5c189a22c489 100644
--- a/include/trace/events/gpio.h
+++ b/include/trace/events/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM gpio
 
diff --git a/include/trace/events/hswadsp.h b/include/trace/events/hswadsp.h
index 0f78bbb02002..939d7a09d73f 100644
--- a/include/trace/events/hswadsp.h
+++ b/include/trace/events/hswadsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM hswadsp
 
diff --git a/include/trace/events/huge_memory.h b/include/trace/events/huge_memory.h
index 04f58acda8e8..dd4db334bd63 100644
--- a/include/trace/events/huge_memory.h
+++ b/include/trace/events/huge_memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM huge_memory
 
diff --git a/include/trace/events/intel-sst.h b/include/trace/events/intel-sst.h
index edc24e6dea1b..0416e91f8181 100644
--- a/include/trace/events/intel-sst.h
+++ b/include/trace/events/intel-sst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM intel-sst
 
diff --git a/include/trace/events/intel_ish.h b/include/trace/events/intel_ish.h
index 92f7d5b23177..e6d7ff55ee8c 100644
--- a/include/trace/events/intel_ish.h
+++ b/include/trace/events/intel_ish.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM intel_ish
 
diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h
index 99254ed89212..72b4582322ff 100644
--- a/include/trace/events/iommu.h
+++ b/include/trace/events/iommu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * iommu trace points
  *
diff --git a/include/trace/events/ipi.h b/include/trace/events/ipi.h
index 834a7362a610..0be71dad6ec0 100644
--- a/include/trace/events/ipi.h
+++ b/include/trace/events/ipi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM ipi
 
diff --git a/include/trace/events/irq.h b/include/trace/events/irq.h
index 1c41b74581f7..eeceafaaea4c 100644
--- a/include/trace/events/irq.h
+++ b/include/trace/events/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM irq
 
diff --git a/include/trace/events/irq_matrix.h b/include/trace/events/irq_matrix.h
new file mode 100644
index 000000000000..267d4cbbf360
--- /dev/null
+++ b/include/trace/events/irq_matrix.h
@@ -0,0 +1,201 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM irq_matrix
+
+#if !defined(_TRACE_IRQ_MATRIX_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_IRQ_MATRIX_H
+
+#include <linux/tracepoint.h>
+
+struct irq_matrix;
+struct cpumap;
+
+DECLARE_EVENT_CLASS(irq_matrix_global,
+
+	TP_PROTO(struct irq_matrix *matrix),
+
+	TP_ARGS(matrix),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	online_maps		)
+		__field(	unsigned int,	global_available	)
+		__field(	unsigned int,	global_reserved		)
+		__field(	unsigned int,	total_allocated		)
+	),
+
+	TP_fast_assign(
+		__entry->online_maps		= matrix->online_maps;
+		__entry->global_available	= matrix->global_available;
+		__entry->global_reserved	= matrix->global_reserved;
+		__entry->total_allocated	= matrix->total_allocated;
+	),
+
+	TP_printk("online_maps=%d global_avl=%u, global_rsvd=%u, total_alloc=%u",
+		  __entry->online_maps, __entry->global_available,
+		  __entry->global_reserved, __entry->total_allocated)
+);
+
+DECLARE_EVENT_CLASS(irq_matrix_global_update,
+
+	TP_PROTO(int bit, struct irq_matrix *matrix),
+
+	TP_ARGS(bit, matrix),
+
+	TP_STRUCT__entry(
+		__field(	int,		bit			)
+		__field(	unsigned int,	online_maps		)
+		__field(	unsigned int,	global_available	)
+		__field(	unsigned int,	global_reserved		)
+		__field(	unsigned int,	total_allocated		)
+	),
+
+	TP_fast_assign(
+		__entry->bit			= bit;
+		__entry->online_maps		= matrix->online_maps;
+		__entry->global_available	= matrix->global_available;
+		__entry->global_reserved	= matrix->global_reserved;
+		__entry->total_allocated	= matrix->total_allocated;
+	),
+
+	TP_printk("bit=%d online_maps=%d global_avl=%u, global_rsvd=%u, total_alloc=%u",
+		  __entry->bit, __entry->online_maps,
+		  __entry->global_available, __entry->global_reserved,
+		  __entry->total_allocated)
+);
+
+DECLARE_EVENT_CLASS(irq_matrix_cpu,
+
+	TP_PROTO(int bit, unsigned int cpu, struct irq_matrix *matrix,
+		 struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap),
+
+	TP_STRUCT__entry(
+		__field(	int,		bit			)
+		__field(	unsigned int,	cpu			)
+		__field(	bool,		online			)
+		__field(	unsigned int,	available		)
+		__field(	unsigned int,	allocated		)
+		__field(	unsigned int,	managed			)
+		__field(	unsigned int,	online_maps		)
+		__field(	unsigned int,	global_available	)
+		__field(	unsigned int,	global_reserved		)
+		__field(	unsigned int,	total_allocated		)
+	),
+
+	TP_fast_assign(
+		__entry->bit			= bit;
+		__entry->cpu			= cpu;
+		__entry->online			= cmap->online;
+		__entry->available		= cmap->available;
+		__entry->allocated		= cmap->allocated;
+		__entry->managed		= cmap->managed;
+		__entry->online_maps		= matrix->online_maps;
+		__entry->global_available	= matrix->global_available;
+		__entry->global_reserved	= matrix->global_reserved;
+		__entry->total_allocated	= matrix->total_allocated;
+	),
+
+	TP_printk("bit=%d cpu=%u online=%d avl=%u alloc=%u managed=%u online_maps=%u global_avl=%u, global_rsvd=%u, total_alloc=%u",
+		  __entry->bit, __entry->cpu, __entry->online,
+		  __entry->available, __entry->allocated,
+		  __entry->managed, __entry->online_maps,
+		  __entry->global_available, __entry->global_reserved,
+		  __entry->total_allocated)
+);
+
+DEFINE_EVENT(irq_matrix_global, irq_matrix_online,
+
+	TP_PROTO(struct irq_matrix *matrix),
+
+	TP_ARGS(matrix)
+);
+
+DEFINE_EVENT(irq_matrix_global, irq_matrix_offline,
+
+	TP_PROTO(struct irq_matrix *matrix),
+
+	TP_ARGS(matrix)
+);
+
+DEFINE_EVENT(irq_matrix_global, irq_matrix_reserve,
+
+	TP_PROTO(struct irq_matrix *matrix),
+
+	TP_ARGS(matrix)
+);
+
+DEFINE_EVENT(irq_matrix_global, irq_matrix_remove_reserved,
+
+	TP_PROTO(struct irq_matrix *matrix),
+
+	TP_ARGS(matrix)
+);
+
+DEFINE_EVENT(irq_matrix_global_update, irq_matrix_assign_system,
+
+	TP_PROTO(int bit, struct irq_matrix *matrix),
+
+	TP_ARGS(bit, matrix)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc_reserved,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_reserve_managed,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_remove_managed,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc_managed,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_assign,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_alloc,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+DEFINE_EVENT(irq_matrix_cpu, irq_matrix_free,
+
+	TP_PROTO(int bit, unsigned int cpu,
+		 struct irq_matrix *matrix, struct cpumap *cmap),
+
+	TP_ARGS(bit, cpu, matrix, cmap)
+);
+
+
+#endif /*  _TRACE_IRQ_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index c1d1f3eb242d..2310b259329f 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM jbd2
 
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index 6b2e154fd23a..285feeadac39 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM kmem
 
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 8ade3eb6c640..e4b0b8e09932 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_MAIN_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_MAIN_H
 
@@ -14,7 +15,9 @@
 	ERSN(SHUTDOWN), ERSN(FAIL_ENTRY), ERSN(INTR), ERSN(SET_TPR),	\
 	ERSN(TPR_ACCESS), ERSN(S390_SIEIC), ERSN(S390_RESET), ERSN(DCR),\
 	ERSN(NMI), ERSN(INTERNAL_ERROR), ERSN(OSI), ERSN(PAPR_HCALL),	\
-	ERSN(S390_UCONTROL), ERSN(WATCHDOG), ERSN(S390_TSCH)
+	ERSN(S390_UCONTROL), ERSN(WATCHDOG), ERSN(S390_TSCH), ERSN(EPR),\
+	ERSN(SYSTEM_EVENT), ERSN(S390_STSI), ERSN(IOAPIC_EOI),          \
+	ERSN(HYPERV)
 
 TRACE_EVENT(kvm_userspace_exit,
 	    TP_PROTO(__u32 reason, int errno),
diff --git a/include/trace/events/libata.h b/include/trace/events/libata.h
index 2fbbf990e4b3..ab69434e2329 100644
--- a/include/trace/events/libata.h
+++ b/include/trace/events/libata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM libata
 
diff --git a/include/trace/events/lock.h b/include/trace/events/lock.h
index 2821b86de63b..d7512129a324 100644
--- a/include/trace/events/lock.h
+++ b/include/trace/events/lock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM lock
 
diff --git a/include/trace/events/mce.h b/include/trace/events/mce.h
index 70f02149808c..1391ada0da3b 100644
--- a/include/trace/events/mce.h
+++ b/include/trace/events/mce.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mce
 
diff --git a/include/trace/events/mdio.h b/include/trace/events/mdio.h
index 00d85f5f54e4..0f241cbe00ab 100644
--- a/include/trace/events/mdio.h
+++ b/include/trace/events/mdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mdio
 
diff --git a/include/trace/events/migrate.h b/include/trace/events/migrate.h
index 539b25a76111..bcf4daccd6be 100644
--- a/include/trace/events/migrate.h
+++ b/include/trace/events/migrate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM migrate
 
diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
index f30a99ac65b6..200f731be557 100644
--- a/include/trace/events/mmc.h
+++ b/include/trace/events/mmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM mmc
 
diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index 4c2e4737d7bc..648cbf603736 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/node.h>
 #include <linux/mmzone.h>
 #include <linux/compaction.h>
@@ -18,7 +19,6 @@
 	{(unsigned long)GFP_HIGHUSER_MOVABLE,	"GFP_HIGHUSER_MOVABLE"},\
 	{(unsigned long)GFP_HIGHUSER,		"GFP_HIGHUSER"},	\
 	{(unsigned long)GFP_USER,		"GFP_USER"},		\
-	{(unsigned long)GFP_TEMPORARY,		"GFP_TEMPORARY"},	\
 	{(unsigned long)GFP_KERNEL_ACCOUNT,	"GFP_KERNEL_ACCOUNT"},	\
 	{(unsigned long)GFP_KERNEL,		"GFP_KERNEL"},		\
 	{(unsigned long)GFP_NOFS,		"GFP_NOFS"},		\
diff --git a/include/trace/events/module.h b/include/trace/events/module.h
index 28c45997e451..097485c73c01 100644
--- a/include/trace/events/module.h
+++ b/include/trace/events/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Because linux/module.h has tracepoints in the header, and ftrace.h
  * used to include this file, define_trace.h includes linux/module.h
diff --git a/include/trace/events/napi.h b/include/trace/events/napi.h
index 0b9e5136a2a3..f3a12566bed0 100644
--- a/include/trace/events/napi.h
+++ b/include/trace/events/napi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM napi
 
diff --git a/include/trace/events/net.h b/include/trace/events/net.h
index 49cc7c3de252..9c886739246a 100644
--- a/include/trace/events/net.h
+++ b/include/trace/events/net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM net
 
diff --git a/include/trace/events/nilfs2.h b/include/trace/events/nilfs2.h
index c7805818fcc6..84ee31fc04cc 100644
--- a/include/trace/events/nilfs2.h
+++ b/include/trace/events/nilfs2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM nilfs2
 
diff --git a/include/trace/events/nmi.h b/include/trace/events/nmi.h
index da3ee96b8d03..18e0411398ba 100644
--- a/include/trace/events/nmi.h
+++ b/include/trace/events/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM nmi
 
diff --git a/include/trace/events/oom.h b/include/trace/events/oom.h
index c3c19d47ae5e..26a11e4a2c36 100644
--- a/include/trace/events/oom.h
+++ b/include/trace/events/oom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM oom
 
diff --git a/include/trace/events/page_isolation.h b/include/trace/events/page_isolation.h
index 8738a78e6bf4..bf4c42e8d6a4 100644
--- a/include/trace/events/page_isolation.h
+++ b/include/trace/events/page_isolation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM page_isolation
 
diff --git a/include/trace/events/page_ref.h b/include/trace/events/page_ref.h
index 81001f8b0db4..5d2ea93956ce 100644
--- a/include/trace/events/page_ref.h
+++ b/include/trace/events/page_ref.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM page_ref
 
diff --git a/include/trace/events/pagemap.h b/include/trace/events/pagemap.h
index ce0803b8d05f..8fd1babae761 100644
--- a/include/trace/events/pagemap.h
+++ b/include/trace/events/pagemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM pagemap
 
diff --git a/include/trace/events/percpu.h b/include/trace/events/percpu.h
index ad34b1bae047..df112a64f6c9 100644
--- a/include/trace/events/percpu.h
+++ b/include/trace/events/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM percpu
 
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 54e3aad32806..908977d69783 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM power
 
diff --git a/include/trace/events/power_cpu_migrate.h b/include/trace/events/power_cpu_migrate.h
index f76dd4de625e..e338810639b4 100644
--- a/include/trace/events/power_cpu_migrate.h
+++ b/include/trace/events/power_cpu_migrate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM power
 
diff --git a/include/trace/events/printk.h b/include/trace/events/printk.h
index f350170059c6..13d405b2fd8b 100644
--- a/include/trace/events/printk.h
+++ b/include/trace/events/printk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM printk
 
diff --git a/include/trace/events/random.h b/include/trace/events/random.h
index 4684de344c5d..0560dfc33f1c 100644
--- a/include/trace/events/random.h
+++ b/include/trace/events/random.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM random
 
diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index e91ae1f2290d..59d40c454aa0 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM rcu
 
diff --git a/include/trace/events/regulator.h b/include/trace/events/regulator.h
index 37502a7404b7..b70583c32c08 100644
--- a/include/trace/events/regulator.h
+++ b/include/trace/events/regulator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM regulator
 
diff --git a/include/trace/events/rpm.h b/include/trace/events/rpm.h
index 33f85b68c22c..26927a560eab 100644
--- a/include/trace/events/rpm.h
+++ b/include/trace/events/rpm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM rpm
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index ae1409ffe99a..306b31de5194 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sched
 
@@ -114,7 +115,10 @@ static inline long __trace_sched_switch_state(bool preempt, struct task_struct *
 	 * Preemption ignores task state, therefore preempted tasks are always
 	 * RUNNING (we will not have dequeued if state != RUNNING).
 	 */
-	return preempt ? TASK_RUNNING | TASK_STATE_MAX : p->state;
+	if (preempt)
+		return TASK_STATE_MAX;
+
+	return task_state_index(p);
 }
 #endif /* CREATE_TRACE_POINTS */
 
@@ -152,12 +156,14 @@ TRACE_EVENT(sched_switch,
 
 	TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s%s ==> next_comm=%s next_pid=%d next_prio=%d",
 		__entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
-		__entry->prev_state & (TASK_STATE_MAX-1) ?
-		  __print_flags(__entry->prev_state & (TASK_STATE_MAX-1), "|",
-				{ 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
-				{ 16, "Z" }, { 32, "X" }, { 64, "x" },
-				{ 128, "K" }, { 256, "W" }, { 512, "P" },
-				{ 1024, "N" }) : "R",
+
+		(__entry->prev_state & (TASK_REPORT_MAX - 1)) ?
+		  __print_flags(__entry->prev_state & (TASK_REPORT_MAX - 1), "|",
+				{ 0x01, "S" }, { 0x02, "D" }, { 0x04, "T" },
+				{ 0x08, "t" }, { 0x10, "X" }, { 0x20, "Z" },
+				{ 0x40, "P" }, { 0x80, "I" }) :
+		  "R",
+
 		__entry->prev_state & TASK_STATE_MAX ? "+" : "",
 		__entry->next_comm, __entry->next_pid, __entry->next_prio)
 );
diff --git a/include/trace/events/scsi.h b/include/trace/events/scsi.h
index 9a9b3e2550af..f624969a4f14 100644
--- a/include/trace/events/scsi.h
+++ b/include/trace/events/scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM scsi
 
diff --git a/include/trace/events/signal.h b/include/trace/events/signal.h
index 39a8a430d90f..86582923d51c 100644
--- a/include/trace/events/signal.h
+++ b/include/trace/events/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM signal
 
diff --git a/include/trace/events/skb.h b/include/trace/events/skb.h
index 0c68ae22da22..9e92f22eb086 100644
--- a/include/trace/events/skb.h
+++ b/include/trace/events/skb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM skb
 
diff --git a/include/trace/events/sock.h b/include/trace/events/sock.h
index 779abb91df81..6d31c0520ef3 100644
--- a/include/trace/events/sock.h
+++ b/include/trace/events/sock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sock
 
diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h
index f9f702b6ae2e..277bb9d25779 100644
--- a/include/trace/events/spi.h
+++ b/include/trace/events/spi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM spi
 
diff --git a/include/trace/events/spmi.h b/include/trace/events/spmi.h
index 62f005ef4c7e..8b60efe18ba6 100644
--- a/include/trace/events/spmi.h
+++ b/include/trace/events/spmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM spmi
 
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 8a707f8a41c3..25a7739514cd 100644
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sunrpc
 
diff --git a/include/trace/events/sunvnet.h b/include/trace/events/sunvnet.h
index eb080b267e55..8d444f1bb10d 100644
--- a/include/trace/events/sunvnet.h
+++ b/include/trace/events/sunvnet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM sunvnet
 
diff --git a/include/trace/events/swiotlb.h b/include/trace/events/swiotlb.h
index 288c0c54a2b4..705be43b71ab 100644
--- a/include/trace/events/swiotlb.h
+++ b/include/trace/events/swiotlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM swiotlb
 
diff --git a/include/trace/events/syscalls.h b/include/trace/events/syscalls.h
index b35533b94277..44a3259ed4a5 100644
--- a/include/trace/events/syscalls.h
+++ b/include/trace/events/syscalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM raw_syscalls
 #undef TRACE_INCLUDE_FILE
diff --git a/include/trace/events/target.h b/include/trace/events/target.h
index 50fea660c0f8..914a872dd343 100644
--- a/include/trace/events/target.h
+++ b/include/trace/events/target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM target
 
diff --git a/include/trace/events/task.h b/include/trace/events/task.h
index 2cca6cd342d8..64d160930b0d 100644
--- a/include/trace/events/task.h
+++ b/include/trace/events/task.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM task
 
diff --git a/include/trace/events/thermal.h b/include/trace/events/thermal.h
index 6cde5b3514c2..466c09d882ad 100644
--- a/include/trace/events/thermal.h
+++ b/include/trace/events/thermal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM thermal
 
diff --git a/include/trace/events/thermal_power_allocator.h b/include/trace/events/thermal_power_allocator.h
index 5afae8fe3795..1c8fb95544f9 100644
--- a/include/trace/events/thermal_power_allocator.h
+++ b/include/trace/events/thermal_power_allocator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM thermal_power_allocator
 
diff --git a/include/trace/events/thp.h b/include/trace/events/thp.h
index b59b065e9e5d..d7fbbe551841 100644
--- a/include/trace/events/thp.h
+++ b/include/trace/events/thp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM thp
 
diff --git a/include/trace/events/timer.h b/include/trace/events/timer.h
index 80787eafba99..16e305e69f34 100644
--- a/include/trace/events/timer.h
+++ b/include/trace/events/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM timer
 
diff --git a/include/trace/events/tlb.h b/include/trace/events/tlb.h
index 9d14b1992108..b4d8e7dc38f8 100644
--- a/include/trace/events/tlb.h
+++ b/include/trace/events/tlb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM tlb
 
diff --git a/include/trace/events/udp.h b/include/trace/events/udp.h
index a664bb940973..336fe272889f 100644
--- a/include/trace/events/udp.h
+++ b/include/trace/events/udp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM udp
 
diff --git a/include/trace/events/v4l2.h b/include/trace/events/v4l2.h
index b3a85b3df53e..83860de120e3 100644
--- a/include/trace/events/v4l2.h
+++ b/include/trace/events/v4l2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM v4l2
 
diff --git a/include/trace/events/vb2.h b/include/trace/events/vb2.h
index c1a22416ed05..a40146dea83d 100644
--- a/include/trace/events/vb2.h
+++ b/include/trace/events/vb2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vb2
 
diff --git a/include/trace/events/vmscan.h b/include/trace/events/vmscan.h
index 27e8a5c77579..dc23cf032403 100644
--- a/include/trace/events/vmscan.h
+++ b/include/trace/events/vmscan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vmscan
 
diff --git a/include/trace/events/vsock_virtio_transport_common.h b/include/trace/events/vsock_virtio_transport_common.h
index b7f1d6278280..6782213778be 100644
--- a/include/trace/events/vsock_virtio_transport_common.h
+++ b/include/trace/events/vsock_virtio_transport_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM vsock
 
diff --git a/include/trace/events/wbt.h b/include/trace/events/wbt.h
index 3c518e455680..b048694070e2 100644
--- a/include/trace/events/wbt.h
+++ b/include/trace/events/wbt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM wbt
 
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index bf0e18ba6cfb..2f057a494d93 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM workqueue
 
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 9b57f014d79d..32db72c7c055 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM writeback
 
@@ -286,7 +287,6 @@ DEFINE_EVENT(writeback_class, name, \
 	TP_PROTO(struct bdi_writeback *wb), \
 	TP_ARGS(wb))
 
-DEFINE_WRITEBACK_EVENT(writeback_nowork);
 DEFINE_WRITEBACK_EVENT(writeback_wake_background);
 
 TRACE_EVENT(writeback_bdi_register,
diff --git a/include/trace/events/xdp.h b/include/trace/events/xdp.h
index 862575ac8da9..810e94160c12 100644
--- a/include/trace/events/xdp.h
+++ b/include/trace/events/xdp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM xdp
 
@@ -138,11 +139,11 @@ DEFINE_EVENT_PRINT(xdp_redirect_template, xdp_redirect_map_err,
 
 #define _trace_xdp_redirect_map(dev, xdp, fwd, map, idx)		\
 	 trace_xdp_redirect_map(dev, xdp, fwd ? fwd->ifindex : 0,	\
-				0, map, idx);
+				0, map, idx)
 
 #define _trace_xdp_redirect_map_err(dev, xdp, fwd, map, idx, err)	\
 	 trace_xdp_redirect_map_err(dev, xdp, fwd ? fwd->ifindex : 0,	\
-				    err, map, idx);
+				    err, map, idx)
 
 #endif /* _TRACE_XDP_H */
 
diff --git a/include/trace/events/xen.h b/include/trace/events/xen.h
index 1b4fed72f573..a7c8b452aab9 100644
--- a/include/trace/events/xen.h
+++ b/include/trace/events/xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM xen
 
diff --git a/include/trace/perf.h b/include/trace/perf.h
index 04fe68bbe767..e4b249821684 100644
--- a/include/trace/perf.h
+++ b/include/trace/perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #undef TRACE_SYSTEM_VAR
 
diff --git a/include/trace/syscall.h b/include/trace/syscall.h
index 7434f0f5d3f6..dc8ac27d27c1 100644
--- a/include/trace/syscall.h
+++ b/include/trace/syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TRACE_SYSCALL_H
 #define _TRACE_SYSCALL_H
 
diff --git a/include/trace/trace_events.h b/include/trace/trace_events.h
index 3976fa1f6e42..bfda803b0a09 100644
--- a/include/trace/trace_events.h
+++ b/include/trace/trace_events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Stage 1 of the trace events.
  *
diff --git a/include/uapi/asm-generic/bitsperlong.h b/include/uapi/asm-generic/bitsperlong.h
index 23e6c416b85f..693d9a40eb7b 100644
--- a/include/uapi/asm-generic/bitsperlong.h
+++ b/include/uapi/asm-generic/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_GENERIC_BITS_PER_LONG
 #define _UAPI__ASM_GENERIC_BITS_PER_LONG
 
diff --git a/include/uapi/asm-generic/errno-base.h b/include/uapi/asm-generic/errno-base.h
index 65115978510f..9653140bff92 100644
--- a/include/uapi/asm-generic/errno-base.h
+++ b/include/uapi/asm-generic/errno-base.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_GENERIC_ERRNO_BASE_H
 #define _ASM_GENERIC_ERRNO_BASE_H
 
diff --git a/include/uapi/asm-generic/errno.h b/include/uapi/asm-generic/errno.h
index 88e0914cf2d9..cf9c51ac49f9 100644
--- a/include/uapi/asm-generic/errno.h
+++ b/include/uapi/asm-generic/errno.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_GENERIC_ERRNO_H
 #define _ASM_GENERIC_ERRNO_H
 
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index e063effe0cc1..9dc0bf0c5a6e 100644
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_GENERIC_FCNTL_H
 #define _ASM_GENERIC_FCNTL_H
 
diff --git a/include/uapi/asm-generic/int-l64.h b/include/uapi/asm-generic/int-l64.h
index 978f21cae2f4..ed8bcd99c34d 100644
--- a/include/uapi/asm-generic/int-l64.h
+++ b/include/uapi/asm-generic/int-l64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * asm-generic/int-l64.h
  *
diff --git a/include/uapi/asm-generic/int-ll64.h b/include/uapi/asm-generic/int-ll64.h
index a8658b2423ba..1ed06964257c 100644
--- a/include/uapi/asm-generic/int-ll64.h
+++ b/include/uapi/asm-generic/int-ll64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * asm-generic/int-ll64.h
  *
diff --git a/include/uapi/asm-generic/ioctl.h b/include/uapi/asm-generic/ioctl.h
index 749b32fe5623..a84f4db8a250 100644
--- a/include/uapi/asm-generic/ioctl.h
+++ b/include/uapi/asm-generic/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_GENERIC_IOCTL_H
 #define _UAPI_ASM_GENERIC_IOCTL_H
 
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index 14baf9f23a14..040651735662 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_IOCTLS_H
 #define __ASM_GENERIC_IOCTLS_H
 
diff --git a/include/uapi/asm-generic/ipcbuf.h b/include/uapi/asm-generic/ipcbuf.h
index 3dbcc1e771c0..7d80dbd336fb 100644
--- a/include/uapi/asm-generic/ipcbuf.h
+++ b/include/uapi/asm-generic/ipcbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_IPCBUF_H
 #define __ASM_GENERIC_IPCBUF_H
 
diff --git a/include/uapi/asm-generic/mman-common.h b/include/uapi/asm-generic/mman-common.h
index 203268f9231e..6d319c46fd90 100644
--- a/include/uapi/asm-generic/mman-common.h
+++ b/include/uapi/asm-generic/mman-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_MMAN_COMMON_H
 #define __ASM_GENERIC_MMAN_COMMON_H
 
diff --git a/include/uapi/asm-generic/mman.h b/include/uapi/asm-generic/mman.h
index 7162cd4cca73..2dffcbf705b3 100644
--- a/include/uapi/asm-generic/mman.h
+++ b/include/uapi/asm-generic/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_MMAN_H
 #define __ASM_GENERIC_MMAN_H
 
diff --git a/include/uapi/asm-generic/msgbuf.h b/include/uapi/asm-generic/msgbuf.h
index f55ecc43c60f..fb306ebdb36f 100644
--- a/include/uapi/asm-generic/msgbuf.h
+++ b/include/uapi/asm-generic/msgbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_MSGBUF_H
 #define __ASM_GENERIC_MSGBUF_H
 
diff --git a/include/uapi/asm-generic/param.h b/include/uapi/asm-generic/param.h
index 5becc84396b8..baad02ea7f93 100644
--- a/include/uapi/asm-generic/param.h
+++ b/include/uapi/asm-generic/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_GENERIC_PARAM_H
 #define _UAPI__ASM_GENERIC_PARAM_H
 
diff --git a/include/uapi/asm-generic/poll.h b/include/uapi/asm-generic/poll.h
index a9694982689f..fefb3d2c3fac 100644
--- a/include/uapi/asm-generic/poll.h
+++ b/include/uapi/asm-generic/poll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_POLL_H
 #define __ASM_GENERIC_POLL_H
 
diff --git a/include/uapi/asm-generic/posix_types.h b/include/uapi/asm-generic/posix_types.h
index fe74fccf18db..5e6ea22bd525 100644
--- a/include/uapi/asm-generic/posix_types.h
+++ b/include/uapi/asm-generic/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_POSIX_TYPES_H
 #define __ASM_GENERIC_POSIX_TYPES_H
 
diff --git a/include/uapi/asm-generic/resource.h b/include/uapi/asm-generic/resource.h
index c6d10af50123..f12db7a0da64 100644
--- a/include/uapi/asm-generic/resource.h
+++ b/include/uapi/asm-generic/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_GENERIC_RESOURCE_H
 #define _UAPI_ASM_GENERIC_RESOURCE_H
 
diff --git a/include/uapi/asm-generic/sembuf.h b/include/uapi/asm-generic/sembuf.h
index 4cb2c13e5090..cbf9cfe977d6 100644
--- a/include/uapi/asm-generic/sembuf.h
+++ b/include/uapi/asm-generic/sembuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SEMBUF_H
 #define __ASM_GENERIC_SEMBUF_H
 
diff --git a/include/uapi/asm-generic/setup.h b/include/uapi/asm-generic/setup.h
index 6fc26a51003c..88ac5100df35 100644
--- a/include/uapi/asm-generic/setup.h
+++ b/include/uapi/asm-generic/setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SETUP_H
 #define __ASM_GENERIC_SETUP_H
 
diff --git a/include/uapi/asm-generic/shmbuf.h b/include/uapi/asm-generic/shmbuf.h
index 7e9fb2f0853b..2b6c3bb97f97 100644
--- a/include/uapi/asm-generic/shmbuf.h
+++ b/include/uapi/asm-generic/shmbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SHMBUF_H
 #define __ASM_GENERIC_SHMBUF_H
 
diff --git a/include/uapi/asm-generic/shmparam.h b/include/uapi/asm-generic/shmparam.h
index 51a3852de733..8b78c0ba08b1 100644
--- a/include/uapi/asm-generic/shmparam.h
+++ b/include/uapi/asm-generic/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SHMPARAM_H
 #define __ASM_GENERIC_SHMPARAM_H
 
diff --git a/include/uapi/asm-generic/siginfo.h b/include/uapi/asm-generic/siginfo.h
index e5aa6794cea4..e447283b8f52 100644
--- a/include/uapi/asm-generic/siginfo.h
+++ b/include/uapi/asm-generic/siginfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_GENERIC_SIGINFO_H
 #define _UAPI_ASM_GENERIC_SIGINFO_H
 
diff --git a/include/uapi/asm-generic/signal-defs.h b/include/uapi/asm-generic/signal-defs.h
index 00f95df54297..e9304c95ceea 100644
--- a/include/uapi/asm-generic/signal-defs.h
+++ b/include/uapi/asm-generic/signal-defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SIGNAL_DEFS_H
 #define __ASM_GENERIC_SIGNAL_DEFS_H
 
diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h
index 3094618d382f..5c716a952cbe 100644
--- a/include/uapi/asm-generic/signal.h
+++ b/include/uapi/asm-generic/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__ASM_GENERIC_SIGNAL_H
 #define _UAPI__ASM_GENERIC_SIGNAL_H
 
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index e47c9e436221..0ae758c90e54 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SOCKET_H
 #define __ASM_GENERIC_SOCKET_H
 
diff --git a/include/uapi/asm-generic/sockios.h b/include/uapi/asm-generic/sockios.h
index 9a61a369b901..64f658c7cec2 100644
--- a/include/uapi/asm-generic/sockios.h
+++ b/include/uapi/asm-generic/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_SOCKIOS_H
 #define __ASM_GENERIC_SOCKIOS_H
 
diff --git a/include/uapi/asm-generic/stat.h b/include/uapi/asm-generic/stat.h
index bd8cad21998e..0d962ecd1663 100644
--- a/include/uapi/asm-generic/stat.h
+++ b/include/uapi/asm-generic/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_STAT_H
 #define __ASM_GENERIC_STAT_H
 
diff --git a/include/uapi/asm-generic/statfs.h b/include/uapi/asm-generic/statfs.h
index cb89cc730f0b..bd35c7619ca2 100644
--- a/include/uapi/asm-generic/statfs.h
+++ b/include/uapi/asm-generic/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_GENERIC_STATFS_H
 #define _UAPI_GENERIC_STATFS_H
 
diff --git a/include/uapi/asm-generic/swab.h b/include/uapi/asm-generic/swab.h
index a8e9029d9eba..f2da4e4fd4d1 100644
--- a/include/uapi/asm-generic/swab.h
+++ b/include/uapi/asm-generic/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_GENERIC_SWAB_H
 #define _ASM_GENERIC_SWAB_H
 
diff --git a/include/uapi/asm-generic/termbits.h b/include/uapi/asm-generic/termbits.h
index 232b4781aef3..2fbaf9ae89dd 100644
--- a/include/uapi/asm-generic/termbits.h
+++ b/include/uapi/asm-generic/termbits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_TERMBITS_H
 #define __ASM_GENERIC_TERMBITS_H
 
diff --git a/include/uapi/asm-generic/termios.h b/include/uapi/asm-generic/termios.h
index 088176062133..cf892933a363 100644
--- a/include/uapi/asm-generic/termios.h
+++ b/include/uapi/asm-generic/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_GENERIC_TERMIOS_H
 #define _UAPI_ASM_GENERIC_TERMIOS_H
 /*
diff --git a/include/uapi/asm-generic/types.h b/include/uapi/asm-generic/types.h
index a3877926b0d4..dfaa50d99d8f 100644
--- a/include/uapi/asm-generic/types.h
+++ b/include/uapi/asm-generic/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_GENERIC_TYPES_H
 #define _ASM_GENERIC_TYPES_H
 /*
diff --git a/include/uapi/asm-generic/ucontext.h b/include/uapi/asm-generic/ucontext.h
index ad77343e8a9a..351868a72168 100644
--- a/include/uapi/asm-generic/ucontext.h
+++ b/include/uapi/asm-generic/ucontext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_UCONTEXT_H
 #define __ASM_GENERIC_UCONTEXT_H
 
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 061185a5eb51..8b87de067bc7 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm/bitsperlong.h>
 
 /*
diff --git a/include/uapi/drm/armada_drm.h b/include/uapi/drm/armada_drm.h
index 0cb932416cfe..af1c14c837c5 100644
--- a/include/uapi/drm/armada_drm.h
+++ b/include/uapi/drm/armada_drm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 Russell King
  *  With inspiration from the i915 driver
diff --git a/include/uapi/drm/etnaviv_drm.h b/include/uapi/drm/etnaviv_drm.h
index 76f6f78a352b..d4463f3fa427 100644
--- a/include/uapi/drm/etnaviv_drm.h
+++ b/include/uapi/drm/etnaviv_drm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2015 Etnaviv Project
  *
diff --git a/include/uapi/drm/exynos_drm.h b/include/uapi/drm/exynos_drm.h
index cb3e9f9d029f..d01087b2a651 100644
--- a/include/uapi/drm/exynos_drm.h
+++ b/include/uapi/drm/exynos_drm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* exynos_drm.h
  *
  * Copyright (c) 2011 Samsung Electronics Co., Ltd.
diff --git a/include/uapi/drm/i810_drm.h b/include/uapi/drm/i810_drm.h
index 6e6cf86b75b0..d285d5e72e6a 100644
--- a/include/uapi/drm/i810_drm.h
+++ b/include/uapi/drm/i810_drm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _I810_DRM_H_
 #define _I810_DRM_H_
 
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h
index 6598fb76d2c2..9816590d3ad2 100644
--- a/include/uapi/drm/i915_drm.h
+++ b/include/uapi/drm/i915_drm.h
@@ -829,6 +829,7 @@ struct drm_i915_gem_exec_fence {
 
 #define I915_EXEC_FENCE_WAIT            (1<<0)
 #define I915_EXEC_FENCE_SIGNAL          (1<<1)
+#define __I915_EXEC_FENCE_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_SIGNAL << 1))
 	__u32 flags;
 };
 
diff --git a/include/uapi/drm/omap_drm.h b/include/uapi/drm/omap_drm.h
index fd5e3ea53f2b..1fccffef9e27 100644
--- a/include/uapi/drm/omap_drm.h
+++ b/include/uapi/drm/omap_drm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/uapi/drm/omap_drm.h
  *
diff --git a/include/uapi/linux/a.out.h b/include/uapi/linux/a.out.h
index 295cd3ef6330..5fafde3798e5 100644
--- a/include/uapi/linux/a.out.h
+++ b/include/uapi/linux/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__A_OUT_GNU_H__
 #define _UAPI__A_OUT_GNU_H__
 
diff --git a/include/uapi/linux/acct.h b/include/uapi/linux/acct.h
index df2f9a0bba6a..0e72172cd23a 100644
--- a/include/uapi/linux/acct.h
+++ b/include/uapi/linux/acct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  BSD Process Accounting for Linux - Definitions
  *
diff --git a/include/uapi/linux/adb.h b/include/uapi/linux/adb.h
index 0ea1075fc4a0..12b6db148ea9 100644
--- a/include/uapi/linux/adb.h
+++ b/include/uapi/linux/adb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for ADB (Apple Desktop Bus) support.
  */
diff --git a/include/uapi/linux/adfs_fs.h b/include/uapi/linux/adfs_fs.h
index a1bf43754ddd..151d93e27ed4 100644
--- a/include/uapi/linux/adfs_fs.h
+++ b/include/uapi/linux/adfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ADFS_FS_H
 #define _UAPI_ADFS_FS_H
 
diff --git a/include/uapi/linux/affs_hardblocks.h b/include/uapi/linux/affs_hardblocks.h
index f1b948c1f592..5e2fb8481252 100644
--- a/include/uapi/linux/affs_hardblocks.h
+++ b/include/uapi/linux/affs_hardblocks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef	AFFS_HARDBLOCKS_H
 #define	AFFS_HARDBLOCKS_H
 
diff --git a/include/uapi/linux/am437x-vpfe.h b/include/uapi/linux/am437x-vpfe.h
index d75774317b9b..beae3521ca91 100644
--- a/include/uapi/linux/am437x-vpfe.h
+++ b/include/uapi/linux/am437x-vpfe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2013 - 2014 Texas Instruments, Inc.
  *
diff --git a/include/uapi/linux/android/binder.h b/include/uapi/linux/android/binder.h
index 84a9a0944e13..bfaec6903b8b 100644
--- a/include/uapi/linux/android/binder.h
+++ b/include/uapi/linux/android/binder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2008 Google, Inc.
  *
diff --git a/include/uapi/linux/apm_bios.h b/include/uapi/linux/apm_bios.h
index df79bca1b898..37ee11dba94c 100644
--- a/include/uapi/linux/apm_bios.h
+++ b/include/uapi/linux/apm_bios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Include file for the interface to an APM BIOS
  * Copyright 1994-2001 Stephen Rothwell (sfr@canb.auug.org.au)
diff --git a/include/uapi/linux/arcfb.h b/include/uapi/linux/arcfb.h
index 721e7654daeb..7a9008b365df 100644
--- a/include/uapi/linux/arcfb.h
+++ b/include/uapi/linux/arcfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_ARCFB_H__
 #define __LINUX_ARCFB_H__
 
diff --git a/include/uapi/linux/aspeed-lpc-ctrl.h b/include/uapi/linux/aspeed-lpc-ctrl.h
index c328c976c684..53abffcde3c6 100644
--- a/include/uapi/linux/aspeed-lpc-ctrl.h
+++ b/include/uapi/linux/aspeed-lpc-ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2017 IBM Corp.
  *
diff --git a/include/uapi/linux/atalk.h b/include/uapi/linux/atalk.h
index 4bcd596e6388..8b96460b46b1 100644
--- a/include/uapi/linux/atalk.h
+++ b/include/uapi/linux/atalk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_ATALK_H__
 #define _UAPI__LINUX_ATALK_H__
 
diff --git a/include/uapi/linux/atm.h b/include/uapi/linux/atm.h
index 88399db602ac..95ebdcf4fe88 100644
--- a/include/uapi/linux/atm.h
+++ b/include/uapi/linux/atm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atm.h - general ATM declarations */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/atm_eni.h b/include/uapi/linux/atm_eni.h
index 34f317972551..cf5bfd1a2691 100644
--- a/include/uapi/linux/atm_eni.h
+++ b/include/uapi/linux/atm_eni.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atm_eni.h - Driver-specific declarations of the ENI driver (for use by
 	       driver-specific utilities) */
 
diff --git a/include/uapi/linux/atm_he.h b/include/uapi/linux/atm_he.h
index 2a7713b597cf..9f4b43293988 100644
--- a/include/uapi/linux/atm_he.h
+++ b/include/uapi/linux/atm_he.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atm_he.h */
 
 #ifndef LINUX_ATM_HE_H
diff --git a/include/uapi/linux/atm_idt77105.h b/include/uapi/linux/atm_idt77105.h
index 8b724000aa50..f0fd6912a14b 100644
--- a/include/uapi/linux/atm_idt77105.h
+++ b/include/uapi/linux/atm_idt77105.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atm_idt77105.h - Driver-specific declarations of the IDT77105 driver (for
  * use by driver-specific utilities) */
 
diff --git a/include/uapi/linux/atm_nicstar.h b/include/uapi/linux/atm_nicstar.h
index 577b79f33e8d..880d368b5b9a 100644
--- a/include/uapi/linux/atm_nicstar.h
+++ b/include/uapi/linux/atm_nicstar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /******************************************************************************
  *
  * atm_nicstar.h
diff --git a/include/uapi/linux/atm_tcp.h b/include/uapi/linux/atm_tcp.h
index 914e821da64d..7309e1bc8867 100644
--- a/include/uapi/linux/atm_tcp.h
+++ b/include/uapi/linux/atm_tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atm_tcp.h - Driver-specific declarations of the ATMTCP driver (for use by
 	       driver-specific utilities) */
 
diff --git a/include/uapi/linux/atm_zatm.h b/include/uapi/linux/atm_zatm.h
index 9c9c6ad55f14..5135027b93c1 100644
--- a/include/uapi/linux/atm_zatm.h
+++ b/include/uapi/linux/atm_zatm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
 		driver-specific utilities) */
 
diff --git a/include/uapi/linux/atmapi.h b/include/uapi/linux/atmapi.h
index 8fe54d90d95b..c9bf5c23a71f 100644
--- a/include/uapi/linux/atmapi.h
+++ b/include/uapi/linux/atmapi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmapi.h - ATM API user space/kernel compatibility */
  
 /* Written 1999,2000 by Werner Almesberger, EPFL ICA */
diff --git a/include/uapi/linux/atmarp.h b/include/uapi/linux/atmarp.h
index 231f4bdec730..8e44d121fde1 100644
--- a/include/uapi/linux/atmarp.h
+++ b/include/uapi/linux/atmarp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmarp.h - ATM ARP protocol and kernel-demon interface definitions */
  
 /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/atmbr2684.h b/include/uapi/linux/atmbr2684.h
index fdb2629b6189..a9e2250cd720 100644
--- a/include/uapi/linux/atmbr2684.h
+++ b/include/uapi/linux/atmbr2684.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_ATMBR2684_H
 #define _LINUX_ATMBR2684_H
 
diff --git a/include/uapi/linux/atmclip.h b/include/uapi/linux/atmclip.h
index 02c94c448dd6..c818bb82b4e6 100644
--- a/include/uapi/linux/atmclip.h
+++ b/include/uapi/linux/atmclip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmclip.h - Classical IP over ATM */
  
 /* Written 1995-1998 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/atmdev.h b/include/uapi/linux/atmdev.h
index 93e0ec008ca8..a5c15cf23bd7 100644
--- a/include/uapi/linux/atmdev.h
+++ b/include/uapi/linux/atmdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmdev.h - ATM device driver declarations and various related items */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/atmioc.h b/include/uapi/linux/atmioc.h
index 37f67aa8f1c1..cd7655e40c77 100644
--- a/include/uapi/linux/atmioc.h
+++ b/include/uapi/linux/atmioc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmioc.h - ranges for ATM-related ioctl numbers */
  
 /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/atmlec.h b/include/uapi/linux/atmlec.h
index 302791e3ab2b..c68346bb40e6 100644
--- a/include/uapi/linux/atmlec.h
+++ b/include/uapi/linux/atmlec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ATM Lan Emulation Daemon driver interface
  *
diff --git a/include/uapi/linux/atmmpc.h b/include/uapi/linux/atmmpc.h
index 2aba5787fa63..cc17f4304839 100644
--- a/include/uapi/linux/atmmpc.h
+++ b/include/uapi/linux/atmmpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ATMMPC_H_
 #define _ATMMPC_H_
 
diff --git a/include/uapi/linux/atmppp.h b/include/uapi/linux/atmppp.h
index 300dcce0c83f..504b9989675b 100644
--- a/include/uapi/linux/atmppp.h
+++ b/include/uapi/linux/atmppp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmppp.h - RFC2364 PPPoATM */
 
 /* Written 2000 by Mitchell Blank Jr */
diff --git a/include/uapi/linux/atmsap.h b/include/uapi/linux/atmsap.h
index 799b104515d7..fc052481eae0 100644
--- a/include/uapi/linux/atmsap.h
+++ b/include/uapi/linux/atmsap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmsap.h - ATM Service Access Point addressing definitions */
 
 /* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/atmsvc.h b/include/uapi/linux/atmsvc.h
index aa71583b8da7..137b5f853449 100644
--- a/include/uapi/linux/atmsvc.h
+++ b/include/uapi/linux/atmsvc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* atmsvc.h - ATM signaling kernel-demon interface definitions */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 0714a66f0e0c..626e76d109b9 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* audit.h -- Auditing support
  *
  * Copyright 2003-2004 Red Hat Inc., Durham, North Carolina.
@@ -112,6 +113,7 @@
 #define AUDIT_FEATURE_CHANGE	1328	/* audit log listing feature changes */
 #define AUDIT_REPLACE		1329	/* Replace auditd if this packet unanswerd */
 #define AUDIT_KERN_MODULE	1330	/* Kernel Module events */
+#define AUDIT_FANOTIFY		1331	/* Fanotify access decision */
 
 #define AUDIT_AVC		1400	/* SE Linux avc denial or grant */
 #define AUDIT_SELINUX_ERR	1401	/* Internal SE Linux Errors */
diff --git a/include/uapi/linux/auto_dev-ioctl.h b/include/uapi/linux/auto_dev-ioctl.h
index 5558db8e6646..374742651c30 100644
--- a/include/uapi/linux/auto_dev-ioctl.h
+++ b/include/uapi/linux/auto_dev-ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2008 Red Hat, Inc. All rights reserved.
  * Copyright 2008 Ian Kent <raven@themaw.net>
diff --git a/include/uapi/linux/auto_fs.h b/include/uapi/linux/auto_fs.h
index aa63451ef20a..2a4432c7a4b4 100644
--- a/include/uapi/linux/auto_fs.h
+++ b/include/uapi/linux/auto_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *   Copyright 1997 Transmeta Corporation - All Rights Reserved
  *
diff --git a/include/uapi/linux/auto_fs4.h b/include/uapi/linux/auto_fs4.h
index 9453e9a07c9d..1f608e27a06f 100644
--- a/include/uapi/linux/auto_fs4.h
+++ b/include/uapi/linux/auto_fs4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
  *
diff --git a/include/uapi/linux/auxvec.h b/include/uapi/linux/auxvec.h
index 835c065cc7e1..abe5f2b6581b 100644
--- a/include/uapi/linux/auxvec.h
+++ b/include/uapi/linux/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_AUXVEC_H
 #define _UAPI_LINUX_AUXVEC_H
 
diff --git a/include/uapi/linux/ax25.h b/include/uapi/linux/ax25.h
index 74c89a41732d..b496b9d8452f 100644
--- a/include/uapi/linux/ax25.h
+++ b/include/uapi/linux/ax25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * These are the public elements of the Linux kernel AX.25 code. A similar
  * file netrom.h exists for the NET/ROM protocol.
diff --git a/include/uapi/linux/b1lli.h b/include/uapi/linux/b1lli.h
index 713f712685d3..4ae6ac9950df 100644
--- a/include/uapi/linux/b1lli.h
+++ b/include/uapi/linux/b1lli.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: b1lli.h,v 1.8.8.3 2001/09/23 22:25:05 kai Exp $
  *
  * ISDN lowlevel-module for AVM B1-card.
diff --git a/include/uapi/linux/baycom.h b/include/uapi/linux/baycom.h
index 81249e029dad..478cb565ae52 100644
--- a/include/uapi/linux/baycom.h
+++ b/include/uapi/linux/baycom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * The Linux BAYCOM driver for the Baycom serial 1200 baud modem
  * and the parallel 9600 baud modem
diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
index e3bb0635e94a..90fc490f973f 100644
--- a/include/uapi/linux/bcache.h
+++ b/include/uapi/linux/bcache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_BCACHE_H
 #define _LINUX_BCACHE_H
 
diff --git a/include/uapi/linux/bcm933xx_hcs.h b/include/uapi/linux/bcm933xx_hcs.h
index d22821831549..f9fccf3c3654 100644
--- a/include/uapi/linux/bcm933xx_hcs.h
+++ b/include/uapi/linux/bcm933xx_hcs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Broadcom Cable Modem firmware format
  */
diff --git a/include/uapi/linux/bfs_fs.h b/include/uapi/linux/bfs_fs.h
index 1c0b355aa515..73445ef07dda 100644
--- a/include/uapi/linux/bfs_fs.h
+++ b/include/uapi/linux/bfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	include/linux/bfs_fs.h - BFS data structures on disk.
  *	Copyright (C) 1999 Tigran Aivazian <tigran@veritas.com>
diff --git a/include/uapi/linux/binfmts.h b/include/uapi/linux/binfmts.h
index 4eb5972867c0..4abad03a8853 100644
--- a/include/uapi/linux/binfmts.h
+++ b/include/uapi/linux/binfmts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_BINFMTS_H
 #define _UAPI_LINUX_BINFMTS_H
 
diff --git a/include/uapi/linux/blkpg.h b/include/uapi/linux/blkpg.h
index 63739a035085..ac6474e4f29d 100644
--- a/include/uapi/linux/blkpg.h
+++ b/include/uapi/linux/blkpg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_BLKPG_H
 #define _UAPI__LINUX_BLKPG_H
 
diff --git a/include/uapi/linux/blktrace_api.h b/include/uapi/linux/blktrace_api.h
index 9cdaedeadb84..20d1490d6377 100644
--- a/include/uapi/linux/blktrace_api.h
+++ b/include/uapi/linux/blktrace_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPIBLKTRACE_H
 #define _UAPIBLKTRACE_H
 
diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h
index 40d1d7bff537..e3c70fe6bf0f 100644
--- a/include/uapi/linux/blkzoned.h
+++ b/include/uapi/linux/blkzoned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Zoned block devices handling.
  *
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 43ab5c402f98..30f2ce76b517 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
  *
  * This program is free software; you can redistribute it and/or
@@ -312,7 +313,7 @@ union bpf_attr {
  *     jump into another BPF program
  *     @ctx: context pointer passed to next program
  *     @prog_array_map: pointer to map which type is BPF_MAP_TYPE_PROG_ARRAY
- *     @index: index inside array that selects specific program to run
+ *     @index: 32-bit index inside array that selects specific program to run
  *     Return: 0 on success or negative error
  *
  * int bpf_clone_redirect(skb, ifindex, flags)
@@ -575,7 +576,7 @@ union bpf_attr {
  *     @map: pointer to sockmap
  *     @key: key to lookup sock in map
  *     @flags: reserved for future use
- *     Return: SK_REDIRECT
+ *     Return: SK_PASS
  *
  * int bpf_sock_map_update(skops, map, key, flags)
  *	@skops: pointer to bpf_sock_ops
@@ -786,9 +787,8 @@ struct xdp_md {
 };
 
 enum sk_action {
-	SK_ABORTED = 0,
-	SK_DROP,
-	SK_REDIRECT,
+	SK_DROP = 0,
+	SK_PASS,
 };
 
 #define BPF_TAG_SIZE	8
diff --git a/include/uapi/linux/bpf_common.h b/include/uapi/linux/bpf_common.h
index a5c220e0828f..18be90725ab0 100644
--- a/include/uapi/linux/bpf_common.h
+++ b/include/uapi/linux/bpf_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_BPF_COMMON_H__
 #define _UAPI__LINUX_BPF_COMMON_H__
 
diff --git a/include/uapi/linux/bpf_perf_event.h b/include/uapi/linux/bpf_perf_event.h
index 067427259820..af549d4ecf1b 100644
--- a/include/uapi/linux/bpf_perf_event.h
+++ b/include/uapi/linux/bpf_perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Copyright (c) 2016 Facebook
  *
  * This program is free software; you can redistribute it and/or
diff --git a/include/uapi/linux/bpqether.h b/include/uapi/linux/bpqether.h
index 05865edaefda..d1d63e2acdeb 100644
--- a/include/uapi/linux/bpqether.h
+++ b/include/uapi/linux/bpqether.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef	__BPQETHER_H
 #define	__BPQETHER_H
 
diff --git a/include/uapi/linux/bsg.h b/include/uapi/linux/bsg.h
index 02986cf8b6f1..cd6302def5ed 100644
--- a/include/uapi/linux/bsg.h
+++ b/include/uapi/linux/bsg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPIBSG_H
 #define _UAPIBSG_H
 
diff --git a/include/uapi/linux/bt-bmc.h b/include/uapi/linux/bt-bmc.h
index d9ec766a63d0..2ffdccfccc1d 100644
--- a/include/uapi/linux/bt-bmc.h
+++ b/include/uapi/linux/bt-bmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2015-2016, IBM Corporation.
  *
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 9aa74f317747..ce615b75e855 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007 Oracle.  All rights reserved.
  *
@@ -255,13 +256,7 @@ struct btrfs_ioctl_fs_info_args {
 #define BTRFS_FEATURE_INCOMPAT_DEFAULT_SUBVOL	(1ULL << 1)
 #define BTRFS_FEATURE_INCOMPAT_MIXED_GROUPS	(1ULL << 2)
 #define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZO	(1ULL << 3)
-/*
- * some patches floated around with a second compression method
- * lets save that incompat here for when they do get in
- * Note we don't actually support it, we're just reserving the
- * number
- */
-#define BTRFS_FEATURE_INCOMPAT_COMPRESS_LZOv2	(1ULL << 4)
+#define BTRFS_FEATURE_INCOMPAT_COMPRESS_ZSTD	(1ULL << 4)
 
 /*
  * older kernels tried to do bigger metadata blocks, but the
@@ -614,10 +609,14 @@ struct btrfs_ioctl_ino_path_args {
 struct btrfs_ioctl_logical_ino_args {
 	__u64				logical;	/* in */
 	__u64				size;		/* in */
-	__u64				reserved[4];
+	__u64				reserved[3];	/* must be 0 for now */
+	__u64				flags;		/* in, v2 only */
 	/* struct btrfs_data_container	*inodes;	out   */
 	__u64				inodes;
 };
+/* Return every ref to the extent, not just those containing logical block.
+ * Requires logical == extent bytenr. */
+#define BTRFS_LOGICAL_INO_ARGS_IGNORE_OFFSET	(1ULL << 0)
 
 enum btrfs_dev_stat_values {
 	/* disk I/O failure stats */
@@ -841,5 +840,7 @@ enum btrfs_err_code {
 				   struct btrfs_ioctl_feature_flags[3])
 #define BTRFS_IOC_RM_DEV_V2 _IOW(BTRFS_IOCTL_MAGIC, 58, \
 				   struct btrfs_ioctl_vol_args_v2)
+#define BTRFS_IOC_LOGICAL_INO_V2 _IOWR(BTRFS_IOCTL_MAGIC, 59, \
+					struct btrfs_ioctl_logical_ino_args)
 
 #endif /* _UAPI_LINUX_BTRFS_H */
diff --git a/include/uapi/linux/btrfs_tree.h b/include/uapi/linux/btrfs_tree.h
index 10689e1fdf11..6d6e5da51527 100644
--- a/include/uapi/linux/btrfs_tree.h
+++ b/include/uapi/linux/btrfs_tree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _BTRFS_CTREE_H_
 #define _BTRFS_CTREE_H_
 
@@ -732,6 +733,7 @@ struct btrfs_balance_item {
 #define BTRFS_FILE_EXTENT_INLINE 0
 #define BTRFS_FILE_EXTENT_REG 1
 #define BTRFS_FILE_EXTENT_PREALLOC 2
+#define BTRFS_FILE_EXTENT_TYPES	2
 
 struct btrfs_file_extent_item {
 	/*
diff --git a/include/uapi/linux/byteorder/big_endian.h b/include/uapi/linux/byteorder/big_endian.h
index cdab17ab907c..2199adc6a6c2 100644
--- a/include/uapi/linux/byteorder/big_endian.h
+++ b/include/uapi/linux/byteorder/big_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_BYTEORDER_BIG_ENDIAN_H
 #define _UAPI_LINUX_BYTEORDER_BIG_ENDIAN_H
 
diff --git a/include/uapi/linux/byteorder/little_endian.h b/include/uapi/linux/byteorder/little_endian.h
index 4b93f2b260dd..601c904fd5cd 100644
--- a/include/uapi/linux/byteorder/little_endian.h
+++ b/include/uapi/linux/byteorder/little_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_BYTEORDER_LITTLE_ENDIAN_H
 #define _UAPI_LINUX_BYTEORDER_LITTLE_ENDIAN_H
 
diff --git a/include/uapi/linux/caif/caif_socket.h b/include/uapi/linux/caif/caif_socket.h
index 586e9f98184f..10ec1d1cf68e 100644
--- a/include/uapi/linux/caif/caif_socket.h
+++ b/include/uapi/linux/caif/caif_socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* linux/caif_socket.h
  * CAIF Definitions for CAIF socket and network layer
  * Copyright (C) ST-Ericsson AB 2010
diff --git a/include/uapi/linux/caif/if_caif.h b/include/uapi/linux/caif/if_caif.h
index 7618aabe8c6b..74bca19403fa 100644
--- a/include/uapi/linux/caif/if_caif.h
+++ b/include/uapi/linux/caif/if_caif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) ST-Ericsson AB 2010
  * Author:	Sjur Brendeland
diff --git a/include/uapi/linux/can.h b/include/uapi/linux/can.h
index c48d93a28d1a..d7f97ac197a9 100644
--- a/include/uapi/linux/can.h
+++ b/include/uapi/linux/can.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * linux/can.h
  *
diff --git a/include/uapi/linux/can/bcm.h b/include/uapi/linux/can/bcm.h
index cefb304414ba..0fb328d93148 100644
--- a/include/uapi/linux/can/bcm.h
+++ b/include/uapi/linux/can/bcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * linux/can/bcm.h
  *
diff --git a/include/uapi/linux/can/error.h b/include/uapi/linux/can/error.h
index 1c508be9687f..bfc4b5d22a5e 100644
--- a/include/uapi/linux/can/error.h
+++ b/include/uapi/linux/can/error.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * linux/can/error.h
  *
diff --git a/include/uapi/linux/can/gw.h b/include/uapi/linux/can/gw.h
index 5079b9d57e31..7bee7a0b9800 100644
--- a/include/uapi/linux/can/gw.h
+++ b/include/uapi/linux/can/gw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * linux/can/gw.h
  *
diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h
index fdf75f74fdaf..96710e76d5ce 100644
--- a/include/uapi/linux/can/netlink.h
+++ b/include/uapi/linux/can/netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/can/netlink.h
  *
diff --git a/include/uapi/linux/can/raw.h b/include/uapi/linux/can/raw.h
index 8735f1080385..be3b36e7ff61 100644
--- a/include/uapi/linux/can/raw.h
+++ b/include/uapi/linux/can/raw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * linux/can/raw.h
  *
diff --git a/include/uapi/linux/can/vxcan.h b/include/uapi/linux/can/vxcan.h
index ffb0b7156f7e..066812d118a2 100644
--- a/include/uapi/linux/can/vxcan.h
+++ b/include/uapi/linux/can/vxcan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_CAN_VXCAN_H
 #define _UAPI_CAN_VXCAN_H
 
diff --git a/include/uapi/linux/capability.h b/include/uapi/linux/capability.h
index 230e05d35191..240fdb9a60f6 100644
--- a/include/uapi/linux/capability.h
+++ b/include/uapi/linux/capability.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This is <linux/capability.h>
  *
diff --git a/include/uapi/linux/capi.h b/include/uapi/linux/capi.h
index 7b145fd7afb6..31f946f8a88d 100644
--- a/include/uapi/linux/capi.h
+++ b/include/uapi/linux/capi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: capi.h,v 1.4.6.1 2001/09/23 22:25:05 kai Exp $
  * 
  * CAPI 2.0 Interface for Linux
diff --git a/include/uapi/linux/cciss_defs.h b/include/uapi/linux/cciss_defs.h
index 316b670d4e33..5cbdfe993365 100644
--- a/include/uapi/linux/cciss_defs.h
+++ b/include/uapi/linux/cciss_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef CCISS_DEFS_H
 #define CCISS_DEFS_H
 
diff --git a/include/uapi/linux/cciss_ioctl.h b/include/uapi/linux/cciss_ioctl.h
index bb0b9ddf7eeb..562230199461 100644
--- a/include/uapi/linux/cciss_ioctl.h
+++ b/include/uapi/linux/cciss_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPICCISS_IOCTLH
 #define _UAPICCISS_IOCTLH
 
diff --git a/include/uapi/linux/cdrom.h b/include/uapi/linux/cdrom.h
index bd17ad5aa06d..2817230148fd 100644
--- a/include/uapi/linux/cdrom.h
+++ b/include/uapi/linux/cdrom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * -- <linux/cdrom.h>
  * General header file for linux CD-ROM drivers 
diff --git a/include/uapi/linux/cec-funcs.h b/include/uapi/linux/cec-funcs.h
index 270b251a3d9b..28e8a2a86e16 100644
--- a/include/uapi/linux/cec-funcs.h
+++ b/include/uapi/linux/cec-funcs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * cec - HDMI Consumer Electronics Control message functions
  *
diff --git a/include/uapi/linux/cec.h b/include/uapi/linux/cec.h
index 4351c3481aea..c3114c989e91 100644
--- a/include/uapi/linux/cec.h
+++ b/include/uapi/linux/cec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * cec - HDMI Consumer Electronics Control public header
  *
diff --git a/include/uapi/linux/cgroupstats.h b/include/uapi/linux/cgroupstats.h
index 3753c33160d1..aa306e4cd6c1 100644
--- a/include/uapi/linux/cgroupstats.h
+++ b/include/uapi/linux/cgroupstats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1 WITH Linux-syscall-note */
 /* cgroupstats.h - exporting per-cgroup statistics
  *
  * Copyright IBM Corporation, 2007
diff --git a/include/uapi/linux/chio.h b/include/uapi/linux/chio.h
index d9bac7f97282..689fc93fafda 100644
--- a/include/uapi/linux/chio.h
+++ b/include/uapi/linux/chio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ioctl interface for the scsi media changer driver
  */
diff --git a/include/uapi/linux/cifs/cifs_mount.h b/include/uapi/linux/cifs/cifs_mount.h
index d7e4c6ce6171..69829205fdb5 100644
--- a/include/uapi/linux/cifs/cifs_mount.h
+++ b/include/uapi/linux/cifs/cifs_mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  *   include/uapi/linux/cifs/cifs_mount.h
  *
diff --git a/include/uapi/linux/cm4000_cs.h b/include/uapi/linux/cm4000_cs.h
index 1217f751a1bc..c70a62ec8a49 100644
--- a/include/uapi/linux/cm4000_cs.h
+++ b/include/uapi/linux/cm4000_cs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_CM4000_H_
 #define _UAPI_CM4000_H_
 
diff --git a/include/uapi/linux/cn_proc.h b/include/uapi/linux/cn_proc.h
index f6c271035bbd..68ff25414700 100644
--- a/include/uapi/linux/cn_proc.h
+++ b/include/uapi/linux/cn_proc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1 WITH Linux-syscall-note */
 /*
  * cn_proc.h - process events connector
  *
diff --git a/include/uapi/linux/coda_psdev.h b/include/uapi/linux/coda_psdev.h
index 79d05981fc4b..aa6623efd2dd 100644
--- a/include/uapi/linux/coda_psdev.h
+++ b/include/uapi/linux/coda_psdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__CODA_PSDEV_H
 #define _UAPI__CODA_PSDEV_H
 
diff --git a/include/uapi/linux/coff.h b/include/uapi/linux/coff.h
index 6354a7fe22b2..e4a79f80b9a0 100644
--- a/include/uapi/linux/coff.h
+++ b/include/uapi/linux/coff.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* This file is derived from the GAS 2.1.4 assembler control file.
    The GAS product is under the GNU General Public License, version 2 or later.
    As such, this file is also under that license.
diff --git a/include/uapi/linux/connector.h b/include/uapi/linux/connector.h
index 4cb283505e45..3738936149a2 100644
--- a/include/uapi/linux/connector.h
+++ b/include/uapi/linux/connector.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * 	connector.h
  * 
diff --git a/include/uapi/linux/const.h b/include/uapi/linux/const.h
index c872bfd25e13..92537757590a 100644
--- a/include/uapi/linux/const.h
+++ b/include/uapi/linux/const.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* const.h: Macros for dealing with constants.  */
 
 #ifndef _LINUX_CONST_H
diff --git a/include/uapi/linux/coresight-stm.h b/include/uapi/linux/coresight-stm.h
index 7e4272cf1fb2..aac550a52f80 100644
--- a/include/uapi/linux/coresight-stm.h
+++ b/include/uapi/linux/coresight-stm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_CORESIGHT_STM_H_
 #define __UAPI_CORESIGHT_STM_H_
 
diff --git a/include/uapi/linux/cramfs_fs.h b/include/uapi/linux/cramfs_fs.h
index e4611a9b9243..5519504199e6 100644
--- a/include/uapi/linux/cramfs_fs.h
+++ b/include/uapi/linux/cramfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__CRAMFS_H
 #define _UAPI__CRAMFS_H
 
diff --git a/include/uapi/linux/cryptouser.h b/include/uapi/linux/cryptouser.h
index fdcbb3c29083..19bf0ca6d635 100644
--- a/include/uapi/linux/cryptouser.h
+++ b/include/uapi/linux/cryptouser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Crypto user configuration API.
  *
diff --git a/include/uapi/linux/cuda.h b/include/uapi/linux/cuda.h
index 286f9f10fce8..28182557748d 100644
--- a/include/uapi/linux/cuda.h
+++ b/include/uapi/linux/cuda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for talking to the CUDA.  The CUDA is a microcontroller
  * which controls the ADB, system power, RTC, and various other things.
diff --git a/include/uapi/linux/cyclades.h b/include/uapi/linux/cyclades.h
index 12b587aa361c..8279bc3d60ca 100644
--- a/include/uapi/linux/cyclades.h
+++ b/include/uapi/linux/cyclades.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Revision: 3.0 $$Date: 1998/11/02 14:20:59 $
  * linux/include/linux/cyclades.h
  *
diff --git a/include/uapi/linux/cycx_cfm.h b/include/uapi/linux/cycx_cfm.h
index 032d26ed8384..51f541942ff9 100644
--- a/include/uapi/linux/cycx_cfm.h
+++ b/include/uapi/linux/cycx_cfm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
 * cycx_cfm.h	Cyclom 2X WAN Link Driver.
 *		Definitions for the Cyclom 2X Firmware Module (CFM).
diff --git a/include/uapi/linux/dcbnl.h b/include/uapi/linux/dcbnl.h
index 3ea470f35e40..b6170a6af7c2 100644
--- a/include/uapi/linux/dcbnl.h
+++ b/include/uapi/linux/dcbnl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2008-2011, Intel Corporation.
  *
diff --git a/include/uapi/linux/dccp.h b/include/uapi/linux/dccp.h
index 52a9cd7307e7..6e1978dbcf7c 100644
--- a/include/uapi/linux/dccp.h
+++ b/include/uapi/linux/dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_DCCP_H
 #define _UAPI_LINUX_DCCP_H
 
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 0cbca96c66b9..6665df69e26a 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * include/uapi/linux/devlink.h - Network physical device Netlink interface
  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
diff --git a/include/uapi/linux/dlm.h b/include/uapi/linux/dlm.h
index 1f73cc06168f..0d2eca287567 100644
--- a/include/uapi/linux/dlm.h
+++ b/include/uapi/linux/dlm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /******************************************************************************
 *******************************************************************************
 **
diff --git a/include/uapi/linux/dlm_device.h b/include/uapi/linux/dlm_device.h
index df56c8ff0769..f880d2831160 100644
--- a/include/uapi/linux/dlm_device.h
+++ b/include/uapi/linux/dlm_device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /******************************************************************************
 *******************************************************************************
 **
diff --git a/include/uapi/linux/dlm_netlink.h b/include/uapi/linux/dlm_netlink.h
index ef1e2e08769a..5dc3a67d353d 100644
--- a/include/uapi/linux/dlm_netlink.h
+++ b/include/uapi/linux/dlm_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007 Red Hat, Inc.  All rights reserved.
  *
diff --git a/include/uapi/linux/dlm_plock.h b/include/uapi/linux/dlm_plock.h
index 6ae692c909cb..63b6c1fd9169 100644
--- a/include/uapi/linux/dlm_plock.h
+++ b/include/uapi/linux/dlm_plock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2005-2008 Red Hat, Inc.  All rights reserved.
  *
diff --git a/include/uapi/linux/dlmconstants.h b/include/uapi/linux/dlmconstants.h
index 2857bdc5b27b..a8ae47c32a37 100644
--- a/include/uapi/linux/dlmconstants.h
+++ b/include/uapi/linux/dlmconstants.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /******************************************************************************
 *******************************************************************************
 **
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index 412c06a624c8..14c44ec8b622 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2001 - 2003 Sistina Software (UK) Limited.
  * Copyright (C) 2004 - 2009 Red Hat, Inc. All rights reserved.
@@ -269,9 +270,9 @@ enum {
 #define DM_DEV_SET_GEOMETRY	_IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR	4
-#define DM_VERSION_MINOR	36
+#define DM_VERSION_MINOR	37
 #define DM_VERSION_PATCHLEVEL	0
-#define DM_VERSION_EXTRA	"-ioctl (2017-06-09)"
+#define DM_VERSION_EXTRA	"-ioctl (2017-09-20)"
 
 /* Status bits */
 #define DM_READONLY_FLAG	(1 << 0) /* In/Out */
diff --git a/include/uapi/linux/dm-log-userspace.h b/include/uapi/linux/dm-log-userspace.h
index 05e91e14c501..5c47a8603376 100644
--- a/include/uapi/linux/dm-log-userspace.h
+++ b/include/uapi/linux/dm-log-userspace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2006-2009 Red Hat, Inc.
  *
diff --git a/include/uapi/linux/dma-buf.h b/include/uapi/linux/dma-buf.h
index fb0dedb7c121..d75df5210a4a 100644
--- a/include/uapi/linux/dma-buf.h
+++ b/include/uapi/linux/dma-buf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Framework for buffer objects that can be shared across devices/subsystems.
  *
diff --git a/include/uapi/linux/dn.h b/include/uapi/linux/dn.h
index 4295c745f342..36ca71bd8bbe 100644
--- a/include/uapi/linux/dn.h
+++ b/include/uapi/linux/dn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_DN_H
 #define _LINUX_DN_H
 
diff --git a/include/uapi/linux/dqblk_xfs.h b/include/uapi/linux/dqblk_xfs.h
index 11b3b31faf14..03d890b80ebc 100644
--- a/include/uapi/linux/dqblk_xfs.h
+++ b/include/uapi/linux/dqblk_xfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 1995-2001,2004 Silicon Graphics, Inc.  All Rights Reserved.
  *
diff --git a/include/uapi/linux/dvb/audio.h b/include/uapi/linux/dvb/audio.h
index d47bccd604e4..69f7a85d81b1 100644
--- a/include/uapi/linux/dvb/audio.h
+++ b/include/uapi/linux/dvb/audio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * audio.h
  *
diff --git a/include/uapi/linux/dvb/ca.h b/include/uapi/linux/dvb/ca.h
index cb150029fdff..dffa59e95ebb 100644
--- a/include/uapi/linux/dvb/ca.h
+++ b/include/uapi/linux/dvb/ca.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * ca.h
  *
diff --git a/include/uapi/linux/dvb/dmx.h b/include/uapi/linux/dvb/dmx.h
index 4aa5f6a1815a..c10f1324b4ca 100644
--- a/include/uapi/linux/dvb/dmx.h
+++ b/include/uapi/linux/dvb/dmx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * dmx.h
  *
diff --git a/include/uapi/linux/dvb/frontend.h b/include/uapi/linux/dvb/frontend.h
index 861cacd5711f..f46de499b51b 100644
--- a/include/uapi/linux/dvb/frontend.h
+++ b/include/uapi/linux/dvb/frontend.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * frontend.h
  *
diff --git a/include/uapi/linux/dvb/net.h b/include/uapi/linux/dvb/net.h
index 89d805f9a5a6..0c550ef93f2c 100644
--- a/include/uapi/linux/dvb/net.h
+++ b/include/uapi/linux/dvb/net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * net.h
  *
diff --git a/include/uapi/linux/dvb/osd.h b/include/uapi/linux/dvb/osd.h
index 880e68435832..e163508b9ae8 100644
--- a/include/uapi/linux/dvb/osd.h
+++ b/include/uapi/linux/dvb/osd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * osd.h
  *
diff --git a/include/uapi/linux/dvb/version.h b/include/uapi/linux/dvb/version.h
index e53e2ad4444f..02e32ea83984 100644
--- a/include/uapi/linux/dvb/version.h
+++ b/include/uapi/linux/dvb/version.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * version.h
  *
diff --git a/include/uapi/linux/dvb/video.h b/include/uapi/linux/dvb/video.h
index c83d40b8a8a4..4d51f98182bb 100644
--- a/include/uapi/linux/dvb/video.h
+++ b/include/uapi/linux/dvb/video.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * video.h
  *
diff --git a/include/uapi/linux/edd.h b/include/uapi/linux/edd.h
index 89240a04e4c8..0fe3e02aec65 100644
--- a/include/uapi/linux/edd.h
+++ b/include/uapi/linux/edd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/include/linux/edd.h
  *  Copyright (C) 2002, 2003, 2004 Dell Inc.
diff --git a/include/uapi/linux/efs_fs_sb.h b/include/uapi/linux/efs_fs_sb.h
index a01be90c58cc..6bad29a10faa 100644
--- a/include/uapi/linux/efs_fs_sb.h
+++ b/include/uapi/linux/efs_fs_sb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * efs_fs_sb.h
  *
diff --git a/include/uapi/linux/elf-em.h b/include/uapi/linux/elf-em.h
index 9cd1de954c0a..31aa10178335 100644
--- a/include/uapi/linux/elf-em.h
+++ b/include/uapi/linux/elf-em.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_ELF_EM_H
 #define _LINUX_ELF_EM_H
 
diff --git a/include/uapi/linux/elf-fdpic.h b/include/uapi/linux/elf-fdpic.h
index 3921e33aec8e..4fcc6cfebe18 100644
--- a/include/uapi/linux/elf-fdpic.h
+++ b/include/uapi/linux/elf-fdpic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* elf-fdpic.h: FDPIC ELF load map
  *
  * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index b5280db9ef6a..e09a4f963dc0 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_ELF_H
 #define _UAPI_LINUX_ELF_H
 
@@ -411,6 +412,7 @@ typedef struct elf64_shdr {
 #define NT_S390_VXRS_HIGH	0x30a	/* s390 vector registers 16-31 */
 #define NT_S390_GS_CB	0x30b		/* s390 guarded storage registers */
 #define NT_S390_GS_BC	0x30c		/* s390 guarded storage broadcast control block */
+#define NT_S390_RI_CB	0x30d		/* s390 runtime instrumentation */
 #define NT_ARM_VFP	0x400		/* ARM VFP/NEON registers */
 #define NT_ARM_TLS	0x401		/* ARM TLS register */
 #define NT_ARM_HW_BREAK	0x402		/* ARM hardware breakpoint registers */
diff --git a/include/uapi/linux/elfcore.h b/include/uapi/linux/elfcore.h
index 569737cfb557..0b2c9e16e345 100644
--- a/include/uapi/linux/elfcore.h
+++ b/include/uapi/linux/elfcore.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_ELFCORE_H
 #define _UAPI_LINUX_ELFCORE_H
 
diff --git a/include/uapi/linux/errqueue.h b/include/uapi/linux/errqueue.h
index 78fdf52d6b2f..dc64cfaf13da 100644
--- a/include/uapi/linux/errqueue.h
+++ b/include/uapi/linux/errqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_ERRQUEUE_H
 #define _UAPI_LINUX_ERRQUEUE_H
 
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 9c041dae8e2c..ac71559314e7 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ethtool.h: Defines for Linux ethtool.
  *
@@ -1753,6 +1754,8 @@ enum ethtool_reset_flags {
  *	%ethtool_link_mode_bit_indices for the link modes, and other
  *	link features that the link partner advertised through
  *	autonegotiation; 0 if unknown or not applicable.  Read-only.
+ * @transceiver: Used to distinguish different possible PHY types,
+ *	reported consistently by PHYLIB.  Read-only.
  *
  * If autonegotiation is disabled, the speed and @duplex represent the
  * fixed link mode and are writable if the driver supports multiple
@@ -1804,7 +1807,9 @@ struct ethtool_link_settings {
 	__u8	eth_tp_mdix;
 	__u8	eth_tp_mdix_ctrl;
 	__s8	link_mode_masks_nwords;
-	__u32	reserved[8];
+	__u8	transceiver;
+	__u8	reserved1[3];
+	__u32	reserved[7];
 	__u32	link_mode_masks[0];
 	/* layout of link_mode_masks fields:
 	 * __u32 map_supported[link_mode_masks_nwords];
diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
index f4d5c998cc2b..63e21be30f15 100644
--- a/include/uapi/linux/eventpoll.h
+++ b/include/uapi/linux/eventpoll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  include/linux/eventpoll.h ( Efficient event polling implementation )
  *  Copyright (C) 2001,...,2006	 Davide Libenzi
diff --git a/include/uapi/linux/fadvise.h b/include/uapi/linux/fadvise.h
index e8e747139b9a..0862b87434c2 100644
--- a/include/uapi/linux/fadvise.h
+++ b/include/uapi/linux/fadvise.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef FADVISE_H_INCLUDED
 #define FADVISE_H_INCLUDED
 
diff --git a/include/uapi/linux/falloc.h b/include/uapi/linux/falloc.h
index b075f601919b..51398fa57f6c 100644
--- a/include/uapi/linux/falloc.h
+++ b/include/uapi/linux/falloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_FALLOC_H_
 #define _UAPI_FALLOC_H_
 
diff --git a/include/uapi/linux/fanotify.h b/include/uapi/linux/fanotify.h
index 030508d195d3..74247917de04 100644
--- a/include/uapi/linux/fanotify.h
+++ b/include/uapi/linux/fanotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FANOTIFY_H
 #define _UAPI_LINUX_FANOTIFY_H
 
@@ -35,6 +36,7 @@
 
 #define FAN_UNLIMITED_QUEUE	0x00000010
 #define FAN_UNLIMITED_MARKS	0x00000020
+#define FAN_ENABLE_AUDIT	0x00000040
 
 #define FAN_ALL_INIT_FLAGS	(FAN_CLOEXEC | FAN_NONBLOCK | \
 				 FAN_ALL_CLASS_BITS | FAN_UNLIMITED_QUEUE |\
@@ -99,6 +101,8 @@ struct fanotify_response {
 /* Legit userspace responses to a _PERM event */
 #define FAN_ALLOW	0x01
 #define FAN_DENY	0x02
+#define FAN_AUDIT	0x10	/* Bit mask to create audit record for result */
+
 /* No fd set in event */
 #define FAN_NOFD	-1
 
diff --git a/include/uapi/linux/fb.h b/include/uapi/linux/fb.h
index fb795c3b3c17..6cd9b198b7c6 100644
--- a/include/uapi/linux/fb.h
+++ b/include/uapi/linux/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FB_H
 #define _UAPI_LINUX_FB_H
 
diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h
index ec69d55bcec7..6448cdd9a350 100644
--- a/include/uapi/linux/fcntl.h
+++ b/include/uapi/linux/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FCNTL_H
 #define _UAPI_LINUX_FCNTL_H
 
diff --git a/include/uapi/linux/fd.h b/include/uapi/linux/fd.h
index 84c517cbce90..90fb94712c41 100644
--- a/include/uapi/linux/fd.h
+++ b/include/uapi/linux/fd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FD_H
 #define _UAPI_LINUX_FD_H
 
diff --git a/include/uapi/linux/fdreg.h b/include/uapi/linux/fdreg.h
index 61ce64169004..5e2981d5c523 100644
--- a/include/uapi/linux/fdreg.h
+++ b/include/uapi/linux/fdreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_FDREG_H
 #define _LINUX_FDREG_H
 /*
diff --git a/include/uapi/linux/fib_rules.h b/include/uapi/linux/fib_rules.h
index bbf02a63a011..2b642bf9b5a0 100644
--- a/include/uapi/linux/fib_rules.h
+++ b/include/uapi/linux/fib_rules.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_FIB_RULES_H
 #define __LINUX_FIB_RULES_H
 
diff --git a/include/uapi/linux/fiemap.h b/include/uapi/linux/fiemap.h
index 0c51d617dae9..8c0bc24d5d95 100644
--- a/include/uapi/linux/fiemap.h
+++ b/include/uapi/linux/fiemap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * FS_IOC_FIEMAP ioctl infrastructure.
  *
diff --git a/include/uapi/linux/filter.h b/include/uapi/linux/filter.h
index c97340e43dd6..13f5b65a888f 100644
--- a/include/uapi/linux/filter.h
+++ b/include/uapi/linux/filter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Linux Socket Filter Data Structures
  */
diff --git a/include/uapi/linux/flat.h b/include/uapi/linux/flat.h
index 88cd6baba8f3..27e595e44fb7 100644
--- a/include/uapi/linux/flat.h
+++ b/include/uapi/linux/flat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2002-2003  David McCullough <davidm@snapgear.com>
  * Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
diff --git a/include/uapi/linux/fou.h b/include/uapi/linux/fou.h
index d2947c52dc67..f2ea833a2812 100644
--- a/include/uapi/linux/fou.h
+++ b/include/uapi/linux/fou.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* fou.h - FOU Interface */
 
 #ifndef _UAPI_LINUX_FOU_H
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index 56235dddea7d..4199f8acbce5 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FS_H
 #define _UAPI_LINUX_FS_H
 
diff --git a/include/uapi/linux/fsl_hypervisor.h b/include/uapi/linux/fsl_hypervisor.h
index 1bf04967fec4..1e237fba951f 100644
--- a/include/uapi/linux/fsl_hypervisor.h
+++ b/include/uapi/linux/fsl_hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Freescale hypervisor ioctl and kernel interface
  *
diff --git a/include/uapi/linux/fsmap.h b/include/uapi/linux/fsmap.h
index e5213c3e38b2..91fd519a3f7d 100644
--- a/include/uapi/linux/fsmap.h
+++ b/include/uapi/linux/fsmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * FS_IOC_GETFSMAP ioctl infrastructure.
  *
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 42fa977e3b14..4b5001c57f46 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
     This file defines the kernel interface of FUSE
     Copyright (C) 2001-2008  Miklos Szeredi <miklos@szeredi.hu>
diff --git a/include/uapi/linux/futex.h b/include/uapi/linux/futex.h
index 0b1f716373c7..a89eb0accd5e 100644
--- a/include/uapi/linux/futex.h
+++ b/include/uapi/linux/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FUTEX_H
 #define _UAPI_LINUX_FUTEX_H
 
diff --git a/include/uapi/linux/gameport.h b/include/uapi/linux/gameport.h
index 49b29b068f40..8fb40b4930ac 100644
--- a/include/uapi/linux/gameport.h
+++ b/include/uapi/linux/gameport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Copyright (c) 1999-2002 Vojtech Pavlik
  *
diff --git a/include/uapi/linux/gen_stats.h b/include/uapi/linux/gen_stats.h
index 52deccc2128e..24a861c0d29d 100644
--- a/include/uapi/linux/gen_stats.h
+++ b/include/uapi/linux/gen_stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_GEN_STATS_H
 #define __LINUX_GEN_STATS_H
 
diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h
index adc899381e0d..877f7fa95466 100644
--- a/include/uapi/linux/genetlink.h
+++ b/include/uapi/linux/genetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_GENERIC_NETLINK_H
 #define _UAPI__LINUX_GENERIC_NETLINK_H
 
diff --git a/include/uapi/linux/genwqe/genwqe_card.h b/include/uapi/linux/genwqe/genwqe_card.h
index baa93fb4cd4f..bc779a5d258d 100644
--- a/include/uapi/linux/genwqe/genwqe_card.h
+++ b/include/uapi/linux/genwqe/genwqe_card.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __GENWQE_CARD_H__
 #define __GENWQE_CARD_H__
 
diff --git a/include/uapi/linux/gfs2_ondisk.h b/include/uapi/linux/gfs2_ondisk.h
index 7c4be7711c81..5156bad77b47 100644
--- a/include/uapi/linux/gfs2_ondisk.h
+++ b/include/uapi/linux/gfs2_ondisk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) Sistina Software, Inc.  1997-2003 All rights reserved.
  * Copyright (C) 2004-2006 Red Hat, Inc.  All rights reserved.
diff --git a/include/uapi/linux/gigaset_dev.h b/include/uapi/linux/gigaset_dev.h
index 258ba82937e7..279551af8ebf 100644
--- a/include/uapi/linux/gigaset_dev.h
+++ b/include/uapi/linux/gigaset_dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * interface to user space for the gigaset driver
  *
diff --git a/include/uapi/linux/gpio.h b/include/uapi/linux/gpio.h
index 333d3544c964..1bf6e6df084b 100644
--- a/include/uapi/linux/gpio.h
+++ b/include/uapi/linux/gpio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * <linux/gpio.h> - userspace ABI for the GPIO character devices
  *
diff --git a/include/uapi/linux/gsmmux.h b/include/uapi/linux/gsmmux.h
index ab055d8cddef..101d3c469acb 100644
--- a/include/uapi/linux/gsmmux.h
+++ b/include/uapi/linux/gsmmux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_GSMMUX_H
 #define _LINUX_GSMMUX_H
 
diff --git a/include/uapi/linux/gtp.h b/include/uapi/linux/gtp.h
index 57d1edb8efd9..c7d66755d212 100644
--- a/include/uapi/linux/gtp.h
+++ b/include/uapi/linux/gtp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_GTP_H_
 #define _UAPI_LINUX_GTP_H_
 
diff --git a/include/uapi/linux/hash_info.h b/include/uapi/linux/hash_info.h
index ebf8fd885dd5..eea5d02c58de 100644
--- a/include/uapi/linux/hash_info.h
+++ b/include/uapi/linux/hash_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Hash Info: Hash algorithms information
  *
diff --git a/include/uapi/linux/hdlc.h b/include/uapi/linux/hdlc.h
index 2c5f0aff4cf9..d89cb3ee7c70 100644
--- a/include/uapi/linux/hdlc.h
+++ b/include/uapi/linux/hdlc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Generic HDLC support routines for Linux
  *
diff --git a/include/uapi/linux/hdlc/ioctl.h b/include/uapi/linux/hdlc/ioctl.h
index 04bc0274a189..0fe4238e8246 100644
--- a/include/uapi/linux/hdlc/ioctl.h
+++ b/include/uapi/linux/hdlc/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __HDLC_IOCTL_H__
 #define __HDLC_IOCTL_H__
 
diff --git a/include/uapi/linux/hdlcdrv.h b/include/uapi/linux/hdlcdrv.h
index ffc79c0b44a8..9fe9499403a6 100644
--- a/include/uapi/linux/hdlcdrv.h
+++ b/include/uapi/linux/hdlcdrv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * hdlcdrv.h  -- HDLC packet radio network driver.
  * The Linux soundcard driver for 1200 baud and 9600 baud packet radio
diff --git a/include/uapi/linux/hdreg.h b/include/uapi/linux/hdreg.h
index 29ee2873f4a8..aeee62ebf83c 100644
--- a/include/uapi/linux/hdreg.h
+++ b/include/uapi/linux/hdreg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_HDREG_H
 #define _LINUX_HDREG_H
 
diff --git a/include/uapi/linux/hid.h b/include/uapi/linux/hid.h
index b60f4842bd97..b34492a87a8a 100644
--- a/include/uapi/linux/hid.h
+++ b/include/uapi/linux/hid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2001 Vojtech Pavlik
diff --git a/include/uapi/linux/hiddev.h b/include/uapi/linux/hiddev.h
index 7df7884bf5c4..53d6cad7a999 100644
--- a/include/uapi/linux/hiddev.h
+++ b/include/uapi/linux/hiddev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (c) 1999-2000 Vojtech Pavlik
  *
diff --git a/include/uapi/linux/hidraw.h b/include/uapi/linux/hidraw.h
index f5b732979a7c..98e2c493de85 100644
--- a/include/uapi/linux/hidraw.h
+++ b/include/uapi/linux/hidraw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Copyright (c) 2007 Jiri Kosina
  */
diff --git a/include/uapi/linux/hpet.h b/include/uapi/linux/hpet.h
index 8af3c70abc8c..30e535644b43 100644
--- a/include/uapi/linux/hpet.h
+++ b/include/uapi/linux/hpet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__HPET__
 #define _UAPI__HPET__
 
diff --git a/include/uapi/linux/hsi/cs-protocol.h b/include/uapi/linux/hsi/cs-protocol.h
index f153d6ea7c62..c7f6e7672cb5 100644
--- a/include/uapi/linux/hsi/cs-protocol.h
+++ b/include/uapi/linux/hsi/cs-protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * cmt-speech interface definitions
  *
diff --git a/include/uapi/linux/hsi/hsi_char.h b/include/uapi/linux/hsi/hsi_char.h
index c00a463d55f9..91623b0398b1 100644
--- a/include/uapi/linux/hsi/hsi_char.h
+++ b/include/uapi/linux/hsi/hsi_char.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Part of the HSI character device driver.
  *
diff --git a/include/uapi/linux/hsr_netlink.h b/include/uapi/linux/hsr_netlink.h
index 2475cb8a53af..c218ef9c35dd 100644
--- a/include/uapi/linux/hsr_netlink.h
+++ b/include/uapi/linux/hsr_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2011-2013 Autronica Fire and Security AS
  *
diff --git a/include/uapi/linux/hw_breakpoint.h b/include/uapi/linux/hw_breakpoint.h
index 2b65efd19a46..965e4d8606d8 100644
--- a/include/uapi/linux/hw_breakpoint.h
+++ b/include/uapi/linux/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_HW_BREAKPOINT_H
 #define _UAPI_LINUX_HW_BREAKPOINT_H
 
diff --git a/include/uapi/linux/hyperv.h b/include/uapi/linux/hyperv.h
index e347b24ef9fb..991b2b7ada7a 100644
--- a/include/uapi/linux/hyperv.h
+++ b/include/uapi/linux/hyperv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *
  * Copyright (c) 2011, Microsoft Corporation.
diff --git a/include/uapi/linux/hysdn_if.h b/include/uapi/linux/hysdn_if.h
index 00236ae3b04e..99f77c517e6d 100644
--- a/include/uapi/linux/hysdn_if.h
+++ b/include/uapi/linux/hysdn_if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: hysdn_if.h,v 1.1.8.3 2001/09/23 22:25:05 kai Exp $
  *
  * Linux driver for HYSDN cards
diff --git a/include/uapi/linux/i2c-dev.h b/include/uapi/linux/i2c-dev.h
index 2f05e66de01e..85f8047afcf2 100644
--- a/include/uapi/linux/i2c-dev.h
+++ b/include/uapi/linux/i2c-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
     i2c-dev.h - i2c-bus driver, char device interface
 
diff --git a/include/uapi/linux/i2c.h b/include/uapi/linux/i2c.h
index 009e27bb9abe..fe648032d6b9 100644
--- a/include/uapi/linux/i2c.h
+++ b/include/uapi/linux/i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* ------------------------------------------------------------------------- */
 /*									     */
 /* i2c.h - definitions for the i2c-bus interface			     */
diff --git a/include/uapi/linux/i2o-dev.h b/include/uapi/linux/i2o-dev.h
index a8093bfec3a6..b1cd407c47d5 100644
--- a/include/uapi/linux/i2o-dev.h
+++ b/include/uapi/linux/i2o-dev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * I2O user space accessible structures/APIs
  *
diff --git a/include/uapi/linux/i8k.h b/include/uapi/linux/i8k.h
index 133d02f03c25..268e6268f6c8 100644
--- a/include/uapi/linux/i8k.h
+++ b/include/uapi/linux/i8k.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * i8k.h -- Linux driver for accessing the SMM BIOS on Dell laptops
  *
diff --git a/include/uapi/linux/icmp.h b/include/uapi/linux/icmp.h
index fddd9d736284..5589eeb791ca 100644
--- a/include/uapi/linux/icmp.h
+++ b/include/uapi/linux/icmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/icmpv6.h b/include/uapi/linux/icmpv6.h
index 590beda78ea0..caf8dc019250 100644
--- a/include/uapi/linux/icmpv6.h
+++ b/include/uapi/linux/icmpv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_ICMPV6_H
 #define _UAPI_LINUX_ICMPV6_H
 
diff --git a/include/uapi/linux/if.h b/include/uapi/linux/if.h
index 259617a551f2..7fea0fd7d6f5 100644
--- a/include/uapi/linux/if.h
+++ b/include/uapi/linux/if.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/if_addr.h b/include/uapi/linux/if_addr.h
index 4318ab1635ce..2ef053d265de 100644
--- a/include/uapi/linux/if_addr.h
+++ b/include/uapi/linux/if_addr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_IF_ADDR_H
 #define __LINUX_IF_ADDR_H
 
diff --git a/include/uapi/linux/if_addrlabel.h b/include/uapi/linux/if_addrlabel.h
index 54580c298187..d1f5974c76e1 100644
--- a/include/uapi/linux/if_addrlabel.h
+++ b/include/uapi/linux/if_addrlabel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * if_addrlabel.h - netlink interface for address labels
  *
diff --git a/include/uapi/linux/if_alg.h b/include/uapi/linux/if_alg.h
index f2acd2fde1f3..bc2bcdec377b 100644
--- a/include/uapi/linux/if_alg.h
+++ b/include/uapi/linux/if_alg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * if_alg: User-space algorithm interface
  *
diff --git a/include/uapi/linux/if_arcnet.h b/include/uapi/linux/if_arcnet.h
index cfb642f8e7bd..683878036d76 100644
--- a/include/uapi/linux/if_arcnet.h
+++ b/include/uapi/linux/if_arcnet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET         An implementation of the TCP/IP protocol suite for the LINUX
  *              operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/if_arp.h b/include/uapi/linux/if_arp.h
index a2a635620600..4605527ca41b 100644
--- a/include/uapi/linux/if_arp.h
+++ b/include/uapi/linux/if_arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/if_bonding.h b/include/uapi/linux/if_bonding.h
index 9635a62f6f89..61a1bf6e865e 100644
--- a/include/uapi/linux/if_bonding.h
+++ b/include/uapi/linux/if_bonding.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * Bond several ethernet interfaces into a Cisco, running 'Etherchannel'.
  *
diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index a9e6244ce438..e41eda3c71f1 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	Linux ethernet bridge
  *
diff --git a/include/uapi/linux/if_cablemodem.h b/include/uapi/linux/if_cablemodem.h
index ee6b3c442baf..1f65130bf2a6 100644
--- a/include/uapi/linux/if_cablemodem.h
+++ b/include/uapi/linux/if_cablemodem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _LINUX_CABLEMODEM_H_
 #define _LINUX_CABLEMODEM_H_
 /*
diff --git a/include/uapi/linux/if_eql.h b/include/uapi/linux/if_eql.h
index 06e818c9e7cb..d6865a2d8cdd 100644
--- a/include/uapi/linux/if_eql.h
+++ b/include/uapi/linux/if_eql.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Equalizer Load-balancer for serial network interfaces.
  *
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index 9037065e23d0..3ee3bf7c8526 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/if_fc.h b/include/uapi/linux/if_fc.h
index 6ed7f1bf35c8..3e3173282cc3 100644
--- a/include/uapi/linux/if_fc.h
+++ b/include/uapi/linux/if_fc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/if_fddi.h b/include/uapi/linux/if_fddi.h
index 1086cd9f6754..75eed8b62823 100644
--- a/include/uapi/linux/if_fddi.h
+++ b/include/uapi/linux/if_fddi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the BSD Socket
diff --git a/include/uapi/linux/if_frad.h b/include/uapi/linux/if_frad.h
index f25b08d5eb6b..3c6ee85f6262 100644
--- a/include/uapi/linux/if_frad.h
+++ b/include/uapi/linux/if_frad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * DLCI/FRAD	Definitions for Frame Relay Access Devices.  DLCI devices are
  *		created for each DLCI associated with a FRAD.  The FRAD driver
diff --git a/include/uapi/linux/if_hippi.h b/include/uapi/linux/if_hippi.h
index cdc049f1829a..785a1452a66c 100644
--- a/include/uapi/linux/if_hippi.h
+++ b/include/uapi/linux/if_hippi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/if_infiniband.h b/include/uapi/linux/if_infiniband.h
index 7d958475d4ac..050b92dcf8cf 100644
--- a/include/uapi/linux/if_infiniband.h
+++ b/include/uapi/linux/if_infiniband.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * This software is available to you under a choice of one of two
  * licenses.  You may choose to be licensed under the terms of the GNU
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 8d062c58d5cb..1f00f0cd6790 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_IF_LINK_H
 #define _UAPI_LINUX_IF_LINK_H
 
diff --git a/include/uapi/linux/if_ltalk.h b/include/uapi/linux/if_ltalk.h
index b92c1fb6ac16..fa61e776f598 100644
--- a/include/uapi/linux/if_ltalk.h
+++ b/include/uapi/linux/if_ltalk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_LTALK_H
 #define _UAPI__LINUX_LTALK_H
 
diff --git a/include/uapi/linux/if_macsec.h b/include/uapi/linux/if_macsec.h
index 02fc49cb72d8..719d243471f4 100644
--- a/include/uapi/linux/if_macsec.h
+++ b/include/uapi/linux/if_macsec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * include/uapi/linux/if_macsec.h - MACsec device
  *
diff --git a/include/uapi/linux/if_packet.h b/include/uapi/linux/if_packet.h
index 4df96a7dd4fa..67b61d91d89b 100644
--- a/include/uapi/linux/if_packet.h
+++ b/include/uapi/linux/if_packet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_IF_PACKET_H
 #define __LINUX_IF_PACKET_H
 
diff --git a/include/uapi/linux/if_phonet.h b/include/uapi/linux/if_phonet.h
index f7ad9e24eb3d..9c22c969ec69 100644
--- a/include/uapi/linux/if_phonet.h
+++ b/include/uapi/linux/if_phonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * File: if_phonet.h
  *
diff --git a/include/uapi/linux/if_plip.h b/include/uapi/linux/if_plip.h
index 6298c7e88b2b..495a366112f2 100644
--- a/include/uapi/linux/if_plip.h
+++ b/include/uapi/linux/if_plip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	NET3	PLIP tuning facilities for the new Niibe PLIP.
  *
diff --git a/include/uapi/linux/if_pppol2tp.h b/include/uapi/linux/if_pppol2tp.h
index 6418c4d10241..060b4d1f3129 100644
--- a/include/uapi/linux/if_pppol2tp.h
+++ b/include/uapi/linux/if_pppol2tp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /***************************************************************************
  * Linux PPP over L2TP (PPPoL2TP) Socket Implementation (RFC 2661)
  *
diff --git a/include/uapi/linux/if_pppox.h b/include/uapi/linux/if_pppox.h
index d37bbb17a007..e7a693c28f16 100644
--- a/include/uapi/linux/if_pppox.h
+++ b/include/uapi/linux/if_pppox.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /***************************************************************************
  * Linux PPP over X - Generic PPP transport layer sockets
  * Linux PPP over Ethernet (PPPoE) Socket Implementation (RFC 2516) 
diff --git a/include/uapi/linux/if_slip.h b/include/uapi/linux/if_slip.h
index 1eb4e3a8397a..65937be53103 100644
--- a/include/uapi/linux/if_slip.h
+++ b/include/uapi/linux/if_slip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	Swansea University Computer Society	NET3
  *	
diff --git a/include/uapi/linux/if_team.h b/include/uapi/linux/if_team.h
index 7b8fa339de30..13c61fecb78b 100644
--- a/include/uapi/linux/if_team.h
+++ b/include/uapi/linux/if_team.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * include/linux/if_team.h - Network team device driver header
  * Copyright (c) 2011 Jiri Pirko <jpirko@redhat.com>
diff --git a/include/uapi/linux/if_tun.h b/include/uapi/linux/if_tun.h
index 3cb5e1d85ddd..47ab4bc62e31 100644
--- a/include/uapi/linux/if_tun.h
+++ b/include/uapi/linux/if_tun.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Universal TUN/TAP device driver.
  *  Copyright (C) 1999-2000 Maxim Krasnyansky <max_mk@yahoo.com>
diff --git a/include/uapi/linux/if_tunnel.h b/include/uapi/linux/if_tunnel.h
index 2e520883c054..383b850aeb88 100644
--- a/include/uapi/linux/if_tunnel.h
+++ b/include/uapi/linux/if_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_IF_TUNNEL_H_
 #define _UAPI_IF_TUNNEL_H_
 
diff --git a/include/uapi/linux/if_vlan.h b/include/uapi/linux/if_vlan.h
index 7e5e6b397332..7a0e8bd65b6b 100644
--- a/include/uapi/linux/if_vlan.h
+++ b/include/uapi/linux/if_vlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * VLAN		An implementation of 802.1Q VLAN tagging.
  *
diff --git a/include/uapi/linux/if_x25.h b/include/uapi/linux/if_x25.h
index 897765f5feb8..5d962448345f 100644
--- a/include/uapi/linux/if_x25.h
+++ b/include/uapi/linux/if_x25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Linux X.25 packet to device interface
  *
diff --git a/include/uapi/linux/ife.h b/include/uapi/linux/ife.h
index 2954da32e012..bdd953c67db1 100644
--- a/include/uapi/linux/ife.h
+++ b/include/uapi/linux/ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_IFE_H
 #define __UAPI_IFE_H
 
diff --git a/include/uapi/linux/igmp.h b/include/uapi/linux/igmp.h
index a97f9a7568cf..7e44ac02ca18 100644
--- a/include/uapi/linux/igmp.h
+++ b/include/uapi/linux/igmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	Linux NET3:	Internet Group Management Protocol  [IGMP]
  *
diff --git a/include/uapi/linux/iio/events.h b/include/uapi/linux/iio/events.h
index 00bbdaed2f97..6ef413452dce 100644
--- a/include/uapi/linux/iio/events.h
+++ b/include/uapi/linux/iio/events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* The industrial I/O - event passing to userspace
  *
  * Copyright (c) 2008-2011 Jonathan Cameron
diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h
index ffafd6c25a48..4213cdf88e3c 100644
--- a/include/uapi/linux/iio/types.h
+++ b/include/uapi/linux/iio/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* industrial I/O data types needed both in and out of kernel
  *
  * Copyright (c) 2008 Jonathan Cameron
diff --git a/include/uapi/linux/ila.h b/include/uapi/linux/ila.h
index 948c0a91e11b..f54853288f99 100644
--- a/include/uapi/linux/ila.h
+++ b/include/uapi/linux/ila.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* ila.h - ILA Interface */
 
 #ifndef _UAPI_LINUX_ILA_H
diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h
index 4e557f4e9553..48e8a225b985 100644
--- a/include/uapi/linux/in.h
+++ b/include/uapi/linux/in.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/in6.h b/include/uapi/linux/in6.h
index 46444f8fbee4..2c002ffa9d6f 100644
--- a/include/uapi/linux/in6.h
+++ b/include/uapi/linux/in6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	Types and definitions for AF_INET6 
  *	Linux INET6 implementation 
diff --git a/include/uapi/linux/in_route.h b/include/uapi/linux/in_route.h
index b261b8c915f0..0cc2c23b47f8 100644
--- a/include/uapi/linux/in_route.h
+++ b/include/uapi/linux/in_route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_IN_ROUTE_H
 #define _LINUX_IN_ROUTE_H
 
diff --git a/include/uapi/linux/inet_diag.h b/include/uapi/linux/inet_diag.h
index f52ff62bfabe..817d807e9481 100644
--- a/include/uapi/linux/inet_diag.h
+++ b/include/uapi/linux/inet_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_INET_DIAG_H_
 #define _UAPI_INET_DIAG_H_
 
diff --git a/include/uapi/linux/inotify.h b/include/uapi/linux/inotify.h
index e6bf35b2dd34..5474461683db 100644
--- a/include/uapi/linux/inotify.h
+++ b/include/uapi/linux/inotify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Inode based directory notification for Linux
  *
diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 179891074b3c..f4058bd4c373 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Input event codes
  *
diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index f561c0eb7d63..8c5a0bf6ee35 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 1999-2002 Vojtech Pavlik
  *
diff --git a/include/uapi/linux/ioctl.h b/include/uapi/linux/ioctl.h
index aa91eb3951ef..b292e8093b24 100644
--- a/include/uapi/linux/ioctl.h
+++ b/include/uapi/linux/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_IOCTL_H
 #define _LINUX_IOCTL_H
 
diff --git a/include/uapi/linux/ip.h b/include/uapi/linux/ip.h
index f291569768dd..b24a742beae5 100644
--- a/include/uapi/linux/ip.h
+++ b/include/uapi/linux/ip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/ip6_tunnel.h b/include/uapi/linux/ip6_tunnel.h
index 425926c467d7..51f29308ac6d 100644
--- a/include/uapi/linux/ip6_tunnel.h
+++ b/include/uapi/linux/ip6_tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6_TUNNEL_H
 #define _IP6_TUNNEL_H
 
diff --git a/include/uapi/linux/ip_vs.h b/include/uapi/linux/ip_vs.h
index 22d69894bc92..1c916b2f89dc 100644
--- a/include/uapi/linux/ip_vs.h
+++ b/include/uapi/linux/ip_vs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *      IP Virtual Server
  *      data structure and functionality definitions
diff --git a/include/uapi/linux/ipc.h b/include/uapi/linux/ipc.h
index de08dd46ddae..5995fc9d675e 100644
--- a/include/uapi/linux/ipc.h
+++ b/include/uapi/linux/ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_IPC_H
 #define _UAPI_LINUX_IPC_H
 
diff --git a/include/uapi/linux/ipmi.h b/include/uapi/linux/ipmi.h
index b9095a27a08a..b076f7a47407 100644
--- a/include/uapi/linux/ipmi.h
+++ b/include/uapi/linux/ipmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * ipmi.h
  *
diff --git a/include/uapi/linux/ipmi_msgdefs.h b/include/uapi/linux/ipmi_msgdefs.h
index df97e6e31e87..17f349459587 100644
--- a/include/uapi/linux/ipmi_msgdefs.h
+++ b/include/uapi/linux/ipmi_msgdefs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * ipmi_smi.h
  *
diff --git a/include/uapi/linux/ipsec.h b/include/uapi/linux/ipsec.h
index d17a6302a0e9..50d8ee1791e2 100644
--- a/include/uapi/linux/ipsec.h
+++ b/include/uapi/linux/ipsec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_IPSEC_H
 #define _LINUX_IPSEC_H
 
diff --git a/include/uapi/linux/ipv6.h b/include/uapi/linux/ipv6.h
index 2ae59178189d..b22a9c4e1b12 100644
--- a/include/uapi/linux/ipv6.h
+++ b/include/uapi/linux/ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_IPV6_H
 #define _UAPI_IPV6_H
 
diff --git a/include/uapi/linux/ipv6_route.h b/include/uapi/linux/ipv6_route.h
index d496c02e14bc..a96eb17ad6fc 100644
--- a/include/uapi/linux/ipv6_route.h
+++ b/include/uapi/linux/ipv6_route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	Linux INET6 implementation 
  *
diff --git a/include/uapi/linux/ipx.h b/include/uapi/linux/ipx.h
index 30f031db12f6..3168137adae8 100644
--- a/include/uapi/linux/ipx.h
+++ b/include/uapi/linux/ipx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPX_H_
 #define _IPX_H_
 #include <linux/libc-compat.h>	/* for compatibility with glibc netipx/ipx.h */
diff --git a/include/uapi/linux/irda.h b/include/uapi/linux/irda.h
index a014c3252311..2105c266aa6e 100644
--- a/include/uapi/linux/irda.h
+++ b/include/uapi/linux/irda.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*********************************************************************
  *                
  * Filename:      irda.h
diff --git a/include/uapi/linux/isdn.h b/include/uapi/linux/isdn.h
index eb1995fffc39..f371fd52ed75 100644
--- a/include/uapi/linux/isdn.h
+++ b/include/uapi/linux/isdn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: isdn.h,v 1.125.2.3 2004/02/10 01:07:14 keil Exp $
  *
  * Main header for the Linux ISDN subsystem (linklevel).
diff --git a/include/uapi/linux/isdn/capicmd.h b/include/uapi/linux/isdn/capicmd.h
index b58635f722da..4941628a4fb9 100644
--- a/include/uapi/linux/isdn/capicmd.h
+++ b/include/uapi/linux/isdn/capicmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: capicmd.h,v 1.2.6.2 2001/09/23 22:24:33 kai Exp $
  * 
  * CAPI 2.0 Interface for Linux
diff --git a/include/uapi/linux/isdn_divertif.h b/include/uapi/linux/isdn_divertif.h
index 3e3c2d898416..0a17bb1bcb1b 100644
--- a/include/uapi/linux/isdn_divertif.h
+++ b/include/uapi/linux/isdn_divertif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: isdn_divertif.h,v 1.4.6.1 2001/09/23 22:25:05 kai Exp $
  *
  * Header for the diversion supplementary interface for i4l.
diff --git a/include/uapi/linux/isdn_ppp.h b/include/uapi/linux/isdn_ppp.h
index e7d7bd2aed3f..0bdc4efaacb2 100644
--- a/include/uapi/linux/isdn_ppp.h
+++ b/include/uapi/linux/isdn_ppp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /* Linux ISDN subsystem, sync PPP, interface to ipppd
  *
  * Copyright 1994-1999  by Fritz Elfert (fritz@isdn4linux.de)
diff --git a/include/uapi/linux/isdnif.h b/include/uapi/linux/isdnif.h
index 246138c01c4d..611a69196738 100644
--- a/include/uapi/linux/isdnif.h
+++ b/include/uapi/linux/isdnif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /* $Id: isdnif.h,v 1.43.2.2 2004/01/12 23:08:35 keil Exp $
  *
  * Linux ISDN subsystem
diff --git a/include/uapi/linux/iso_fs.h b/include/uapi/linux/iso_fs.h
index 4688ac4284e2..a2555176f6d1 100644
--- a/include/uapi/linux/iso_fs.h
+++ b/include/uapi/linux/iso_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ISOFS_FS_H
 #define _ISOFS_FS_H
 
@@ -12,10 +13,10 @@
 #define ISODCL(from, to) (to - from + 1)
 
 struct iso_volume_descriptor {
-	char type[ISODCL(1,1)]; /* 711 */
+	__u8 type[ISODCL(1,1)]; /* 711 */
 	char id[ISODCL(2,6)];
-	char version[ISODCL(7,7)];
-	char data[ISODCL(8,2048)];
+	__u8 version[ISODCL(7,7)];
+	__u8 data[ISODCL(8,2048)];
 };
 
 /* volume descriptor types */
@@ -26,24 +27,24 @@ struct iso_volume_descriptor {
 #define ISO_STANDARD_ID "CD001"
 
 struct iso_primary_descriptor {
-	char type			[ISODCL (  1,   1)]; /* 711 */
+	__u8 type			[ISODCL (  1,   1)]; /* 711 */
 	char id				[ISODCL (  2,   6)];
-	char version			[ISODCL (  7,   7)]; /* 711 */
-	char unused1			[ISODCL (  8,   8)];
+	__u8 version			[ISODCL (  7,   7)]; /* 711 */
+	__u8 unused1			[ISODCL (  8,   8)];
 	char system_id			[ISODCL (  9,  40)]; /* achars */
 	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
-	char unused2			[ISODCL ( 73,  80)];
-	char volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
-	char unused3			[ISODCL ( 89, 120)];
-	char volume_set_size		[ISODCL (121, 124)]; /* 723 */
-	char volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
-	char logical_block_size		[ISODCL (129, 132)]; /* 723 */
-	char path_table_size		[ISODCL (133, 140)]; /* 733 */
-	char type_l_path_table		[ISODCL (141, 144)]; /* 731 */
-	char opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
-	char type_m_path_table		[ISODCL (149, 152)]; /* 732 */
-	char opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
-	char root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
+	__u8 unused2			[ISODCL ( 73,  80)];
+	__u8 volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
+	__u8 unused3			[ISODCL ( 89, 120)];
+	__u8 volume_set_size		[ISODCL (121, 124)]; /* 723 */
+	__u8 volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
+	__u8 logical_block_size		[ISODCL (129, 132)]; /* 723 */
+	__u8 path_table_size		[ISODCL (133, 140)]; /* 733 */
+	__u8 type_l_path_table		[ISODCL (141, 144)]; /* 731 */
+	__u8 opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
+	__u8 type_m_path_table		[ISODCL (149, 152)]; /* 732 */
+	__u8 opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
+	__u8 root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
 	char volume_set_id		[ISODCL (191, 318)]; /* dchars */
 	char publisher_id		[ISODCL (319, 446)]; /* achars */
 	char preparer_id		[ISODCL (447, 574)]; /* achars */
@@ -51,36 +52,36 @@ struct iso_primary_descriptor {
 	char copyright_file_id		[ISODCL (703, 739)]; /* 7.5 dchars */
 	char abstract_file_id		[ISODCL (740, 776)]; /* 7.5 dchars */
 	char bibliographic_file_id	[ISODCL (777, 813)]; /* 7.5 dchars */
-	char creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
-	char modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
-	char expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
-	char effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
-	char file_structure_version	[ISODCL (882, 882)]; /* 711 */
-	char unused4			[ISODCL (883, 883)];
-	char application_data		[ISODCL (884, 1395)];
-	char unused5			[ISODCL (1396, 2048)];
+	__u8 creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
+	__u8 modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
+	__u8 expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
+	__u8 effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
+	__u8 file_structure_version	[ISODCL (882, 882)]; /* 711 */
+	__u8 unused4			[ISODCL (883, 883)];
+	__u8 application_data		[ISODCL (884, 1395)];
+	__u8 unused5			[ISODCL (1396, 2048)];
 };
 
 /* Almost the same as the primary descriptor but two fields are specified */
 struct iso_supplementary_descriptor {
-	char type			[ISODCL (  1,   1)]; /* 711 */
+	__u8 type			[ISODCL (  1,   1)]; /* 711 */
 	char id				[ISODCL (  2,   6)];
-	char version			[ISODCL (  7,   7)]; /* 711 */
-	char flags			[ISODCL (  8,   8)]; /* 853 */
+	__u8 version			[ISODCL (  7,   7)]; /* 711 */
+	__u8 flags			[ISODCL (  8,   8)]; /* 853 */
 	char system_id			[ISODCL (  9,  40)]; /* achars */
 	char volume_id			[ISODCL ( 41,  72)]; /* dchars */
-	char unused2			[ISODCL ( 73,  80)];
-	char volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
-	char escape			[ISODCL ( 89, 120)]; /* 856 */
-	char volume_set_size		[ISODCL (121, 124)]; /* 723 */
-	char volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
-	char logical_block_size		[ISODCL (129, 132)]; /* 723 */
-	char path_table_size		[ISODCL (133, 140)]; /* 733 */
-	char type_l_path_table		[ISODCL (141, 144)]; /* 731 */
-	char opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
-	char type_m_path_table		[ISODCL (149, 152)]; /* 732 */
-	char opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
-	char root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
+	__u8 unused2			[ISODCL ( 73,  80)];
+	__u8 volume_space_size		[ISODCL ( 81,  88)]; /* 733 */
+	__u8 escape			[ISODCL ( 89, 120)]; /* 856 */
+	__u8 volume_set_size		[ISODCL (121, 124)]; /* 723 */
+	__u8 volume_sequence_number	[ISODCL (125, 128)]; /* 723 */
+	__u8 logical_block_size		[ISODCL (129, 132)]; /* 723 */
+	__u8 path_table_size		[ISODCL (133, 140)]; /* 733 */
+	__u8 type_l_path_table		[ISODCL (141, 144)]; /* 731 */
+	__u8 opt_type_l_path_table	[ISODCL (145, 148)]; /* 731 */
+	__u8 type_m_path_table		[ISODCL (149, 152)]; /* 732 */
+	__u8 opt_type_m_path_table	[ISODCL (153, 156)]; /* 732 */
+	__u8 root_directory_record	[ISODCL (157, 190)]; /* 9.1 */
 	char volume_set_id		[ISODCL (191, 318)]; /* dchars */
 	char publisher_id		[ISODCL (319, 446)]; /* achars */
 	char preparer_id		[ISODCL (447, 574)]; /* achars */
@@ -88,54 +89,54 @@ struct iso_supplementary_descriptor {
 	char copyright_file_id		[ISODCL (703, 739)]; /* 7.5 dchars */
 	char abstract_file_id		[ISODCL (740, 776)]; /* 7.5 dchars */
 	char bibliographic_file_id	[ISODCL (777, 813)]; /* 7.5 dchars */
-	char creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
-	char modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
-	char expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
-	char effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
-	char file_structure_version	[ISODCL (882, 882)]; /* 711 */
-	char unused4			[ISODCL (883, 883)];
-	char application_data		[ISODCL (884, 1395)];
-	char unused5			[ISODCL (1396, 2048)];
+	__u8 creation_date		[ISODCL (814, 830)]; /* 8.4.26.1 */
+	__u8 modification_date		[ISODCL (831, 847)]; /* 8.4.26.1 */
+	__u8 expiration_date		[ISODCL (848, 864)]; /* 8.4.26.1 */
+	__u8 effective_date		[ISODCL (865, 881)]; /* 8.4.26.1 */
+	__u8 file_structure_version	[ISODCL (882, 882)]; /* 711 */
+	__u8 unused4			[ISODCL (883, 883)];
+	__u8 application_data		[ISODCL (884, 1395)];
+	__u8 unused5			[ISODCL (1396, 2048)];
 };
 
 
 #define HS_STANDARD_ID "CDROM"
 
 struct  hs_volume_descriptor {
-	char foo			[ISODCL (  1,   8)]; /* 733 */
-	char type			[ISODCL (  9,   9)]; /* 711 */
+	__u8 foo			[ISODCL (  1,   8)]; /* 733 */
+	__u8 type			[ISODCL (  9,   9)]; /* 711 */
 	char id				[ISODCL ( 10,  14)];
-	char version			[ISODCL ( 15,  15)]; /* 711 */
-	char data[ISODCL(16,2048)];
+	__u8 version			[ISODCL ( 15,  15)]; /* 711 */
+	__u8 data[ISODCL(16,2048)];
 };
 
 
 struct hs_primary_descriptor {
-	char foo			[ISODCL (  1,   8)]; /* 733 */
-	char type			[ISODCL (  9,   9)]; /* 711 */
-	char id				[ISODCL ( 10,  14)];
-	char version			[ISODCL ( 15,  15)]; /* 711 */
-	char unused1			[ISODCL ( 16,  16)]; /* 711 */
+	__u8 foo			[ISODCL (  1,   8)]; /* 733 */
+	__u8 type			[ISODCL (  9,   9)]; /* 711 */
+	__u8 id				[ISODCL ( 10,  14)];
+	__u8 version			[ISODCL ( 15,  15)]; /* 711 */
+	__u8 unused1			[ISODCL ( 16,  16)]; /* 711 */
 	char system_id			[ISODCL ( 17,  48)]; /* achars */
 	char volume_id			[ISODCL ( 49,  80)]; /* dchars */
-	char unused2			[ISODCL ( 81,  88)]; /* 733 */
-	char volume_space_size		[ISODCL ( 89,  96)]; /* 733 */
-	char unused3			[ISODCL ( 97, 128)]; /* 733 */
-	char volume_set_size		[ISODCL (129, 132)]; /* 723 */
-	char volume_sequence_number	[ISODCL (133, 136)]; /* 723 */
-	char logical_block_size		[ISODCL (137, 140)]; /* 723 */
-	char path_table_size		[ISODCL (141, 148)]; /* 733 */
-	char type_l_path_table		[ISODCL (149, 152)]; /* 731 */
-	char unused4			[ISODCL (153, 180)]; /* 733 */
-	char root_directory_record	[ISODCL (181, 214)]; /* 9.1 */
+	__u8 unused2			[ISODCL ( 81,  88)]; /* 733 */
+	__u8 volume_space_size		[ISODCL ( 89,  96)]; /* 733 */
+	__u8 unused3			[ISODCL ( 97, 128)]; /* 733 */
+	__u8 volume_set_size		[ISODCL (129, 132)]; /* 723 */
+	__u8 volume_sequence_number	[ISODCL (133, 136)]; /* 723 */
+	__u8 logical_block_size		[ISODCL (137, 140)]; /* 723 */
+	__u8 path_table_size		[ISODCL (141, 148)]; /* 733 */
+	__u8 type_l_path_table		[ISODCL (149, 152)]; /* 731 */
+	__u8 unused4			[ISODCL (153, 180)]; /* 733 */
+	__u8 root_directory_record	[ISODCL (181, 214)]; /* 9.1 */
 };
 
 /* We use this to help us look up the parent inode numbers. */
 
 struct iso_path_table{
-	unsigned char  name_len[2];	/* 721 */
-	char extent[4];		/* 731 */
-	char  parent[2];	/* 721 */
+	__u8  name_len[2];	/* 721 */
+	__u8  extent[4];	/* 731 */
+	__u8  parent[2];	/* 721 */
 	char name[0];
 } __attribute__((packed));
 
@@ -143,16 +144,16 @@ struct iso_path_table{
    there is an extra reserved byte after the flags */
 
 struct iso_directory_record {
-	char length			[ISODCL (1, 1)]; /* 711 */
-	char ext_attr_length		[ISODCL (2, 2)]; /* 711 */
-	char extent			[ISODCL (3, 10)]; /* 733 */
-	char size			[ISODCL (11, 18)]; /* 733 */
-	char date			[ISODCL (19, 25)]; /* 7 by 711 */
-	char flags			[ISODCL (26, 26)];
-	char file_unit_size		[ISODCL (27, 27)]; /* 711 */
-	char interleave			[ISODCL (28, 28)]; /* 711 */
-	char volume_sequence_number	[ISODCL (29, 32)]; /* 723 */
-	unsigned char name_len		[ISODCL (33, 33)]; /* 711 */
+	__u8 length			[ISODCL (1, 1)]; /* 711 */
+	__u8 ext_attr_length		[ISODCL (2, 2)]; /* 711 */
+	__u8 extent			[ISODCL (3, 10)]; /* 733 */
+	__u8 size			[ISODCL (11, 18)]; /* 733 */
+	__u8 date			[ISODCL (19, 25)]; /* 7 by 711 */
+	__u8 flags			[ISODCL (26, 26)];
+	__u8 file_unit_size		[ISODCL (27, 27)]; /* 711 */
+	__u8 interleave			[ISODCL (28, 28)]; /* 711 */
+	__u8 volume_sequence_number	[ISODCL (29, 32)]; /* 723 */
+	__u8 name_len			[ISODCL (33, 33)]; /* 711 */
 	char name			[0];
 } __attribute__((packed));
 
diff --git a/include/uapi/linux/ivtv.h b/include/uapi/linux/ivtv.h
index 42bf725751af..e74f18642b11 100644
--- a/include/uapi/linux/ivtv.h
+++ b/include/uapi/linux/ivtv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
     Public ivtv API header
     Copyright (C) 2003-2004  Kevin Thayer <nufan_wfk at yahoo.com>
diff --git a/include/uapi/linux/ivtvfb.h b/include/uapi/linux/ivtvfb.h
index e8b92f67f10d..9e9b072375de 100644
--- a/include/uapi/linux/ivtvfb.h
+++ b/include/uapi/linux/ivtvfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
     On Screen Display cx23415 Framebuffer driver
 
diff --git a/include/uapi/linux/ixjuser.h b/include/uapi/linux/ixjuser.h
index 94ab5e942e53..ba245007cfe7 100644
--- a/include/uapi/linux/ixjuser.h
+++ b/include/uapi/linux/ixjuser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __LINUX_IXJUSER_H
 #define __LINUX_IXJUSER_H
 
diff --git a/include/uapi/linux/joystick.h b/include/uapi/linux/joystick.h
index b856fd11c70e..64aabb84a66d 100644
--- a/include/uapi/linux/joystick.h
+++ b/include/uapi/linux/joystick.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (C) 1996-2000 Vojtech Pavlik
  *
diff --git a/include/uapi/linux/kcm.h b/include/uapi/linux/kcm.h
index a5a530940b99..01361ea359c4 100644
--- a/include/uapi/linux/kcm.h
+++ b/include/uapi/linux/kcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Kernel Connection Multiplexor
  *
diff --git a/include/uapi/linux/kcmp.h b/include/uapi/linux/kcmp.h
index 481e103da78e..ef1305010925 100644
--- a/include/uapi/linux/kcmp.h
+++ b/include/uapi/linux/kcmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_KCMP_H
 #define _UAPI_LINUX_KCMP_H
 
diff --git a/include/uapi/linux/kcov.h b/include/uapi/linux/kcov.h
index 574e22ec640d..33eabbb8ada1 100644
--- a/include/uapi/linux/kcov.h
+++ b/include/uapi/linux/kcov.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_KCOV_IOCTLS_H
 #define _LINUX_KCOV_IOCTLS_H
 
diff --git a/include/uapi/linux/kd.h b/include/uapi/linux/kd.h
index 87b7cc439d7c..4616b31f84da 100644
--- a/include/uapi/linux/kd.h
+++ b/include/uapi/linux/kd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_KD_H
 #define _UAPI_LINUX_KD_H
 #include <linux/types.h>
diff --git a/include/uapi/linux/kdev_t.h b/include/uapi/linux/kdev_t.h
index 0d881fa7eb9c..e1990f2e9777 100644
--- a/include/uapi/linux/kdev_t.h
+++ b/include/uapi/linux/kdev_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_KDEV_T_H
 #define _UAPI_LINUX_KDEV_T_H
 #ifndef __KERNEL__
diff --git a/include/uapi/linux/kernel-page-flags.h b/include/uapi/linux/kernel-page-flags.h
index 5da5f8751ce7..fa139841ec18 100644
--- a/include/uapi/linux/kernel-page-flags.h
+++ b/include/uapi/linux/kernel-page-flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPILINUX_KERNEL_PAGE_FLAGS_H
 #define _UAPILINUX_KERNEL_PAGE_FLAGS_H
 
diff --git a/include/uapi/linux/kernel.h b/include/uapi/linux/kernel.h
index 466073f0ce46..0ff8f7477847 100644
--- a/include/uapi/linux/kernel.h
+++ b/include/uapi/linux/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_KERNEL_H
 #define _UAPI_LINUX_KERNEL_H
 
diff --git a/include/uapi/linux/kernelcapi.h b/include/uapi/linux/kernelcapi.h
index 89bf40d36d2a..325a856e0e20 100644
--- a/include/uapi/linux/kernelcapi.h
+++ b/include/uapi/linux/kernelcapi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * $Id: kernelcapi.h,v 1.8.6.2 2001/02/07 11:31:31 kai Exp $
  * 
diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
index aae5ebf2022b..6d112868272d 100644
--- a/include/uapi/linux/kexec.h
+++ b/include/uapi/linux/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPILINUX_KEXEC_H
 #define _UAPILINUX_KEXEC_H
 
diff --git a/include/uapi/linux/keyboard.h b/include/uapi/linux/keyboard.h
index 5a6849721ab6..ab4108c83186 100644
--- a/include/uapi/linux/keyboard.h
+++ b/include/uapi/linux/keyboard.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_KEYBOARD_H
 #define _UAPI__LINUX_KEYBOARD_H
 
diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h
index ef16df06642a..7b8c9e19bad1 100644
--- a/include/uapi/linux/keyctl.h
+++ b/include/uapi/linux/keyctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* keyctl.h: keyctl command IDs
  *
  * Copyright (C) 2004, 2008 Red Hat, Inc. All Rights Reserved.
diff --git a/include/uapi/linux/kfd_ioctl.h b/include/uapi/linux/kfd_ioctl.h
index 7b4567bacfc2..26283fefdf5f 100644
--- a/include/uapi/linux/kfd_ioctl.h
+++ b/include/uapi/linux/kfd_ioctl.h
@@ -23,15 +23,15 @@
 #ifndef KFD_IOCTL_H_INCLUDED
 #define KFD_IOCTL_H_INCLUDED
 
-#include <linux/types.h>
+#include <drm/drm.h>
 #include <linux/ioctl.h>
 
 #define KFD_IOCTL_MAJOR_VERSION 1
 #define KFD_IOCTL_MINOR_VERSION 1
 
 struct kfd_ioctl_get_version_args {
-	uint32_t major_version;	/* from KFD */
-	uint32_t minor_version;	/* from KFD */
+	__u32 major_version;	/* from KFD */
+	__u32 minor_version;	/* from KFD */
 };
 
 /* For kfd_ioctl_create_queue_args.queue_type. */
@@ -43,36 +43,36 @@ struct kfd_ioctl_get_version_args {
 #define KFD_MAX_QUEUE_PRIORITY		15
 
 struct kfd_ioctl_create_queue_args {
-	uint64_t ring_base_address;	/* to KFD */
-	uint64_t write_pointer_address;	/* from KFD */
-	uint64_t read_pointer_address;	/* from KFD */
-	uint64_t doorbell_offset;	/* from KFD */
-
-	uint32_t ring_size;		/* to KFD */
-	uint32_t gpu_id;		/* to KFD */
-	uint32_t queue_type;		/* to KFD */
-	uint32_t queue_percentage;	/* to KFD */
-	uint32_t queue_priority;	/* to KFD */
-	uint32_t queue_id;		/* from KFD */
-
-	uint64_t eop_buffer_address;	/* to KFD */
-	uint64_t eop_buffer_size;	/* to KFD */
-	uint64_t ctx_save_restore_address; /* to KFD */
-	uint64_t ctx_save_restore_size;	/* to KFD */
+	__u64 ring_base_address;	/* to KFD */
+	__u64 write_pointer_address;	/* from KFD */
+	__u64 read_pointer_address;	/* from KFD */
+	__u64 doorbell_offset;	/* from KFD */
+
+	__u32 ring_size;		/* to KFD */
+	__u32 gpu_id;		/* to KFD */
+	__u32 queue_type;		/* to KFD */
+	__u32 queue_percentage;	/* to KFD */
+	__u32 queue_priority;	/* to KFD */
+	__u32 queue_id;		/* from KFD */
+
+	__u64 eop_buffer_address;	/* to KFD */
+	__u64 eop_buffer_size;	/* to KFD */
+	__u64 ctx_save_restore_address; /* to KFD */
+	__u64 ctx_save_restore_size;	/* to KFD */
 };
 
 struct kfd_ioctl_destroy_queue_args {
-	uint32_t queue_id;		/* to KFD */
-	uint32_t pad;
+	__u32 queue_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_update_queue_args {
-	uint64_t ring_base_address;	/* to KFD */
+	__u64 ring_base_address;	/* to KFD */
 
-	uint32_t queue_id;		/* to KFD */
-	uint32_t ring_size;		/* to KFD */
-	uint32_t queue_percentage;	/* to KFD */
-	uint32_t queue_priority;	/* to KFD */
+	__u32 queue_id;		/* to KFD */
+	__u32 ring_size;		/* to KFD */
+	__u32 queue_percentage;	/* to KFD */
+	__u32 queue_priority;	/* to KFD */
 };
 
 /* For kfd_ioctl_set_memory_policy_args.default_policy and alternate_policy */
@@ -80,13 +80,13 @@ struct kfd_ioctl_update_queue_args {
 #define KFD_IOC_CACHE_POLICY_NONCOHERENT 1
 
 struct kfd_ioctl_set_memory_policy_args {
-	uint64_t alternate_aperture_base;	/* to KFD */
-	uint64_t alternate_aperture_size;	/* to KFD */
+	__u64 alternate_aperture_base;	/* to KFD */
+	__u64 alternate_aperture_size;	/* to KFD */
 
-	uint32_t gpu_id;			/* to KFD */
-	uint32_t default_policy;		/* to KFD */
-	uint32_t alternate_policy;		/* to KFD */
-	uint32_t pad;
+	__u32 gpu_id;			/* to KFD */
+	__u32 default_policy;		/* to KFD */
+	__u32 alternate_policy;		/* to KFD */
+	__u32 pad;
 };
 
 /*
@@ -97,26 +97,26 @@ struct kfd_ioctl_set_memory_policy_args {
  */
 
 struct kfd_ioctl_get_clock_counters_args {
-	uint64_t gpu_clock_counter;	/* from KFD */
-	uint64_t cpu_clock_counter;	/* from KFD */
-	uint64_t system_clock_counter;	/* from KFD */
-	uint64_t system_clock_freq;	/* from KFD */
+	__u64 gpu_clock_counter;	/* from KFD */
+	__u64 cpu_clock_counter;	/* from KFD */
+	__u64 system_clock_counter;	/* from KFD */
+	__u64 system_clock_freq;	/* from KFD */
 
-	uint32_t gpu_id;		/* to KFD */
-	uint32_t pad;
+	__u32 gpu_id;		/* to KFD */
+	__u32 pad;
 };
 
 #define NUM_OF_SUPPORTED_GPUS 7
 
 struct kfd_process_device_apertures {
-	uint64_t lds_base;		/* from KFD */
-	uint64_t lds_limit;		/* from KFD */
-	uint64_t scratch_base;		/* from KFD */
-	uint64_t scratch_limit;		/* from KFD */
-	uint64_t gpuvm_base;		/* from KFD */
-	uint64_t gpuvm_limit;		/* from KFD */
-	uint32_t gpu_id;		/* from KFD */
-	uint32_t pad;
+	__u64 lds_base;		/* from KFD */
+	__u64 lds_limit;		/* from KFD */
+	__u64 scratch_base;		/* from KFD */
+	__u64 scratch_limit;		/* from KFD */
+	__u64 gpuvm_base;		/* from KFD */
+	__u64 gpuvm_limit;		/* from KFD */
+	__u32 gpu_id;		/* from KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_get_process_apertures_args {
@@ -124,8 +124,8 @@ struct kfd_ioctl_get_process_apertures_args {
 			process_apertures[NUM_OF_SUPPORTED_GPUS];/* from KFD */
 
 	/* from KFD, should be in the range [1 - NUM_OF_SUPPORTED_GPUS] */
-	uint32_t num_of_nodes;
-	uint32_t pad;
+	__u32 num_of_nodes;
+	__u32 pad;
 };
 
 #define MAX_ALLOWED_NUM_POINTS    100
@@ -133,25 +133,25 @@ struct kfd_ioctl_get_process_apertures_args {
 #define MAX_ALLOWED_WAC_BUFF_SIZE  128
 
 struct kfd_ioctl_dbg_register_args {
-	uint32_t gpu_id;		/* to KFD */
-	uint32_t pad;
+	__u32 gpu_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_dbg_unregister_args {
-	uint32_t gpu_id;		/* to KFD */
-	uint32_t pad;
+	__u32 gpu_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_dbg_address_watch_args {
-	uint64_t content_ptr;		/* a pointer to the actual content */
-	uint32_t gpu_id;		/* to KFD */
-	uint32_t buf_size_in_bytes;	/*including gpu_id and buf_size */
+	__u64 content_ptr;		/* a pointer to the actual content */
+	__u32 gpu_id;		/* to KFD */
+	__u32 buf_size_in_bytes;	/*including gpu_id and buf_size */
 };
 
 struct kfd_ioctl_dbg_wave_control_args {
-	uint64_t content_ptr;		/* a pointer to the actual content */
-	uint32_t gpu_id;		/* to KFD */
-	uint32_t buf_size_in_bytes;	/*including gpu_id and buf_size */
+	__u64 content_ptr;		/* a pointer to the actual content */
+	__u32 gpu_id;		/* to KFD */
+	__u32 buf_size_in_bytes;	/*including gpu_id and buf_size */
 };
 
 /* Matching HSA_EVENTTYPE */
@@ -172,44 +172,44 @@ struct kfd_ioctl_dbg_wave_control_args {
 #define KFD_SIGNAL_EVENT_LIMIT			256
 
 struct kfd_ioctl_create_event_args {
-	uint64_t event_page_offset;	/* from KFD */
-	uint32_t event_trigger_data;	/* from KFD - signal events only */
-	uint32_t event_type;		/* to KFD */
-	uint32_t auto_reset;		/* to KFD */
-	uint32_t node_id;		/* to KFD - only valid for certain
+	__u64 event_page_offset;	/* from KFD */
+	__u32 event_trigger_data;	/* from KFD - signal events only */
+	__u32 event_type;		/* to KFD */
+	__u32 auto_reset;		/* to KFD */
+	__u32 node_id;		/* to KFD - only valid for certain
 							event types */
-	uint32_t event_id;		/* from KFD */
-	uint32_t event_slot_index;	/* from KFD */
+	__u32 event_id;		/* from KFD */
+	__u32 event_slot_index;	/* from KFD */
 };
 
 struct kfd_ioctl_destroy_event_args {
-	uint32_t event_id;		/* to KFD */
-	uint32_t pad;
+	__u32 event_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_set_event_args {
-	uint32_t event_id;		/* to KFD */
-	uint32_t pad;
+	__u32 event_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_reset_event_args {
-	uint32_t event_id;		/* to KFD */
-	uint32_t pad;
+	__u32 event_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_memory_exception_failure {
-	uint32_t NotPresent;	/* Page not present or supervisor privilege */
-	uint32_t ReadOnly;	/* Write access to a read-only page */
-	uint32_t NoExecute;	/* Execute access to a page marked NX */
-	uint32_t pad;
+	__u32 NotPresent;	/* Page not present or supervisor privilege */
+	__u32 ReadOnly;	/* Write access to a read-only page */
+	__u32 NoExecute;	/* Execute access to a page marked NX */
+	__u32 pad;
 };
 
 /* memory exception data*/
 struct kfd_hsa_memory_exception_data {
 	struct kfd_memory_exception_failure failure;
-	uint64_t va;
-	uint32_t gpu_id;
-	uint32_t pad;
+	__u64 va;
+	__u32 gpu_id;
+	__u32 pad;
 };
 
 /* Event data*/
@@ -217,19 +217,19 @@ struct kfd_event_data {
 	union {
 		struct kfd_hsa_memory_exception_data memory_exception_data;
 	};				/* From KFD */
-	uint64_t kfd_event_data_ext;	/* pointer to an extension structure
+	__u64 kfd_event_data_ext;	/* pointer to an extension structure
 					   for future exception types */
-	uint32_t event_id;		/* to KFD */
-	uint32_t pad;
+	__u32 event_id;		/* to KFD */
+	__u32 pad;
 };
 
 struct kfd_ioctl_wait_events_args {
-	uint64_t events_ptr;		/* pointed to struct
+	__u64 events_ptr;		/* pointed to struct
 					   kfd_event_data array, to KFD */
-	uint32_t num_events;		/* to KFD */
-	uint32_t wait_for_all;		/* to KFD */
-	uint32_t timeout;		/* to KFD */
-	uint32_t wait_result;		/* from KFD */
+	__u32 num_events;		/* to KFD */
+	__u32 wait_for_all;		/* to KFD */
+	__u32 timeout;		/* to KFD */
+	__u32 wait_result;		/* from KFD */
 };
 
 struct kfd_ioctl_set_scratch_backing_va_args {
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 838887587411..7e99999d6236 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_KVM_H
 #define __LINUX_KVM_H
 
diff --git a/include/uapi/linux/kvm_para.h b/include/uapi/linux/kvm_para.h
index fed506aeff62..dcf629dd2889 100644
--- a/include/uapi/linux/kvm_para.h
+++ b/include/uapi/linux/kvm_para.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_KVM_PARA_H
 #define _UAPI__LINUX_KVM_PARA_H
 
diff --git a/include/uapi/linux/l2tp.h b/include/uapi/linux/l2tp.h
index b23c1914a182..d84ce5c1c9aa 100644
--- a/include/uapi/linux/l2tp.h
+++ b/include/uapi/linux/l2tp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * L2TP-over-IP socket for L2TPv3.
  *
diff --git a/include/uapi/linux/libc-compat.h b/include/uapi/linux/libc-compat.h
index 44b8a6bd5fe1..282875cf8056 100644
--- a/include/uapi/linux/libc-compat.h
+++ b/include/uapi/linux/libc-compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Compatibility interface for userspace libc header coordination:
  *
diff --git a/include/uapi/linux/lightnvm.h b/include/uapi/linux/lightnvm.h
index c8aec4b9e73b..42d1a434af29 100644
--- a/include/uapi/linux/lightnvm.h
+++ b/include/uapi/linux/lightnvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2015 CNEX Labs.  All rights reserved.
  *
diff --git a/include/uapi/linux/limits.h b/include/uapi/linux/limits.h
index 2d0f94162fb3..c3547f07605c 100644
--- a/include/uapi/linux/limits.h
+++ b/include/uapi/linux/limits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_LIMITS_H
 #define _LINUX_LIMITS_H
 
diff --git a/include/uapi/linux/lirc.h b/include/uapi/linux/lirc.h
index 991ab4570b8e..c3aef4316fbf 100644
--- a/include/uapi/linux/lirc.h
+++ b/include/uapi/linux/lirc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * lirc.h - linux infrared remote control header file
  * last modified 2010/07/13 by Jarod Wilson
diff --git a/include/uapi/linux/llc.h b/include/uapi/linux/llc.h
index a6c17f66ee94..cf8806b14d5f 100644
--- a/include/uapi/linux/llc.h
+++ b/include/uapi/linux/llc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * IEEE 802.2 User Interface SAPs for Linux, data structures and indicators.
  *
diff --git a/include/uapi/linux/loop.h b/include/uapi/linux/loop.h
index 23158dbe2424..080a8df134ef 100644
--- a/include/uapi/linux/loop.h
+++ b/include/uapi/linux/loop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * include/linux/loop.h
  *
diff --git a/include/uapi/linux/lp.h b/include/uapi/linux/lp.h
index a3406a51f196..dafcfe4e4834 100644
--- a/include/uapi/linux/lp.h
+++ b/include/uapi/linux/lp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * usr/include/linux/lp.h c.1991-1992 James Wiegand
  * many modifications copyright (C) 1992 Michael K. Johnson
diff --git a/include/uapi/linux/lwtunnel.h b/include/uapi/linux/lwtunnel.h
index 7fdd19ca7511..de696ca12f2c 100644
--- a/include/uapi/linux/lwtunnel.h
+++ b/include/uapi/linux/lwtunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LWTUNNEL_H_
 #define _UAPI_LWTUNNEL_H_
 
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index e439565df838..aa50113ebe5b 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_MAGIC_H__
 #define __LINUX_MAGIC_H__
 
diff --git a/include/uapi/linux/major.h b/include/uapi/linux/major.h
index 19e195bee990..7e5fa8e15c43 100644
--- a/include/uapi/linux/major.h
+++ b/include/uapi/linux/major.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_MAJOR_H
 #define _LINUX_MAJOR_H
 
diff --git a/include/uapi/linux/map_to_7segment.h b/include/uapi/linux/map_to_7segment.h
index 12d62a54d470..f9ed18134b83 100644
--- a/include/uapi/linux/map_to_7segment.h
+++ b/include/uapi/linux/map_to_7segment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2005 Henk Vergonet <Henk.Vergonet@gmail.com>
  *
diff --git a/include/uapi/linux/matroxfb.h b/include/uapi/linux/matroxfb.h
index 8c22a8938642..23e025b7e362 100644
--- a/include/uapi/linux/matroxfb.h
+++ b/include/uapi/linux/matroxfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_MATROXFB_H__
 #define __LINUX_MATROXFB_H__
 
diff --git a/include/uapi/linux/max2175.h b/include/uapi/linux/max2175.h
index 3ef5d264440f..daedc4eb9b6b 100644
--- a/include/uapi/linux/max2175.h
+++ b/include/uapi/linux/max2175.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * max2175.h
  *
diff --git a/include/uapi/linux/mdio.h b/include/uapi/linux/mdio.h
index c94a510a577e..d435b00d64ad 100644
--- a/include/uapi/linux/mdio.h
+++ b/include/uapi/linux/mdio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/mdio.h: definitions for MDIO (clause 45) transceivers
  * Copyright 2006-2009 Solarflare Communications Inc.
diff --git a/include/uapi/linux/media-bus-format.h b/include/uapi/linux/media-bus-format.h
index ef6fb307d2ce..9e3511742fdc 100644
--- a/include/uapi/linux/media-bus-format.h
+++ b/include/uapi/linux/media-bus-format.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Media Bus API header
  *
diff --git a/include/uapi/linux/media.h b/include/uapi/linux/media.h
index 4865f1e71339..b9b9446095e9 100644
--- a/include/uapi/linux/media.h
+++ b/include/uapi/linux/media.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Multimedia device API
  *
diff --git a/include/uapi/linux/mei.h b/include/uapi/linux/mei.h
index 7c3b64f6a215..0f681cbd38d3 100644
--- a/include/uapi/linux/mei.h
+++ b/include/uapi/linux/mei.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /******************************************************************************
  * Intel Management Engine Interface (Intel MEI) Linux driver
  * Intel MEI Interface Header
diff --git a/include/uapi/linux/membarrier.h b/include/uapi/linux/membarrier.h
index 6d47b3249d8a..4e01ad7ffe98 100644
--- a/include/uapi/linux/membarrier.h
+++ b/include/uapi/linux/membarrier.h
@@ -52,21 +52,30 @@
  *                          (non-running threads are de facto in such a
  *                          state). This only covers threads from the
  *                          same processes as the caller thread. This
- *                          command returns 0. The "expedited" commands
- *                          complete faster than the non-expedited ones,
- *                          they never block, but have the downside of
- *                          causing extra overhead.
+ *                          command returns 0 on success. The
+ *                          "expedited" commands complete faster than
+ *                          the non-expedited ones, they never block,
+ *                          but have the downside of causing extra
+ *                          overhead. A process needs to register its
+ *                          intent to use the private expedited command
+ *                          prior to using it, otherwise this command
+ *                          returns -EPERM.
+ * @MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED:
+ *                          Register the process intent to use
+ *                          MEMBARRIER_CMD_PRIVATE_EXPEDITED. Always
+ *                          returns 0.
  *
  * Command to be passed to the membarrier system call. The commands need to
  * be a single bit each, except for MEMBARRIER_CMD_QUERY which is assigned to
  * the value 0.
  */
 enum membarrier_cmd {
-	MEMBARRIER_CMD_QUERY			= 0,
-	MEMBARRIER_CMD_SHARED			= (1 << 0),
+	MEMBARRIER_CMD_QUERY				= 0,
+	MEMBARRIER_CMD_SHARED				= (1 << 0),
 	/* reserved for MEMBARRIER_CMD_SHARED_EXPEDITED (1 << 1) */
 	/* reserved for MEMBARRIER_CMD_PRIVATE (1 << 2) */
-	MEMBARRIER_CMD_PRIVATE_EXPEDITED	= (1 << 3),
+	MEMBARRIER_CMD_PRIVATE_EXPEDITED		= (1 << 3),
+	MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED	= (1 << 4),
 };
 
 #endif /* _UAPI_LINUX_MEMBARRIER_H */
diff --git a/include/uapi/linux/memfd.h b/include/uapi/linux/memfd.h
index 7f3a722dbd72..015a4c0bbb47 100644
--- a/include/uapi/linux/memfd.h
+++ b/include/uapi/linux/memfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_MEMFD_H
 #define _UAPI_LINUX_MEMFD_H
 
diff --git a/include/uapi/linux/mempolicy.h b/include/uapi/linux/mempolicy.h
index 2a4d89508fec..3354774af61e 100644
--- a/include/uapi/linux/mempolicy.h
+++ b/include/uapi/linux/mempolicy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * NUMA memory policies for Linux.
  * Copyright 2003,2004 Andi Kleen SuSE Labs
diff --git a/include/uapi/linux/meye.h b/include/uapi/linux/meye.h
index 8ff50fe9e481..de9e3a954f3d 100644
--- a/include/uapi/linux/meye.h
+++ b/include/uapi/linux/meye.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Motion Eye video4linux driver for Sony Vaio PictureBook
  *
diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h
index e9686372029d..504e523f702c 100644
--- a/include/uapi/linux/mic_common.h
+++ b/include/uapi/linux/mic_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
diff --git a/include/uapi/linux/mic_ioctl.h b/include/uapi/linux/mic_ioctl.h
index feb0b4c0814c..687b9cd9d3e2 100644
--- a/include/uapi/linux/mic_ioctl.h
+++ b/include/uapi/linux/mic_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
diff --git a/include/uapi/linux/mii.h b/include/uapi/linux/mii.h
index 15d8510cdae0..b5c2fdcf23fd 100644
--- a/include/uapi/linux/mii.h
+++ b/include/uapi/linux/mii.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/mii.h: definitions for MII-compatible transceivers
  * Originally drivers/net/sunhme.h.
diff --git a/include/uapi/linux/minix_fs.h b/include/uapi/linux/minix_fs.h
index 13fe09e0576a..95dbcb17eacd 100644
--- a/include/uapi/linux/minix_fs.h
+++ b/include/uapi/linux/minix_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_MINIX_FS_H
 #define _LINUX_MINIX_FS_H
 
diff --git a/include/uapi/linux/mman.h b/include/uapi/linux/mman.h
index a937480d7cd3..bfd5938fede6 100644
--- a/include/uapi/linux/mman.h
+++ b/include/uapi/linux/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_MMAN_H
 #define _UAPI_LINUX_MMAN_H
 
diff --git a/include/uapi/linux/mmc/ioctl.h b/include/uapi/linux/mmc/ioctl.h
index 700a55156eee..45f369dc0a42 100644
--- a/include/uapi/linux/mmc/ioctl.h
+++ b/include/uapi/linux/mmc/ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef LINUX_MMC_IOCTL_H
 #define LINUX_MMC_IOCTL_H
 
diff --git a/include/uapi/linux/mmtimer.h b/include/uapi/linux/mmtimer.h
index 884cabf16088..409fae1de383 100644
--- a/include/uapi/linux/mmtimer.h
+++ b/include/uapi/linux/mmtimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Intel Multimedia Timer device interface
  *
diff --git a/include/uapi/linux/module.h b/include/uapi/linux/module.h
index 38da4258b12f..50d98ec5e866 100644
--- a/include/uapi/linux/module.h
+++ b/include/uapi/linux/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_MODULE_H
 #define _UAPI_LINUX_MODULE_H
 
diff --git a/include/uapi/linux/mpls.h b/include/uapi/linux/mpls.h
index 77a19dfe3990..1ef5d6002a4a 100644
--- a/include/uapi/linux/mpls.h
+++ b/include/uapi/linux/mpls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_MPLS_H
 #define _UAPI_MPLS_H
 
diff --git a/include/uapi/linux/mpls_iptunnel.h b/include/uapi/linux/mpls_iptunnel.h
index f5e45095b0bb..521f2e605f13 100644
--- a/include/uapi/linux/mpls_iptunnel.h
+++ b/include/uapi/linux/mpls_iptunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	mpls tunnel api
  *
diff --git a/include/uapi/linux/mqueue.h b/include/uapi/linux/mqueue.h
index bbd5116ea739..b516b66840ad 100644
--- a/include/uapi/linux/mqueue.h
+++ b/include/uapi/linux/mqueue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /* Copyright (C) 2003 Krzysztof Benedyczak & Michal Wronski
 
    This program is free software; you can redistribute it and/or
diff --git a/include/uapi/linux/mroute.h b/include/uapi/linux/mroute.h
index e8e5041dea8e..10f9ff9426a2 100644
--- a/include/uapi/linux/mroute.h
+++ b/include/uapi/linux/mroute.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_MROUTE_H
 #define _UAPI__LINUX_MROUTE_H
 
diff --git a/include/uapi/linux/mroute6.h b/include/uapi/linux/mroute6.h
index e4746816c855..9999cc006390 100644
--- a/include/uapi/linux/mroute6.h
+++ b/include/uapi/linux/mroute6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_MROUTE6_H
 #define _UAPI__LINUX_MROUTE6_H
 
diff --git a/include/uapi/linux/msdos_fs.h b/include/uapi/linux/msdos_fs.h
index e956704f5fb1..a45d0754102e 100644
--- a/include/uapi/linux/msdos_fs.h
+++ b/include/uapi/linux/msdos_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_MSDOS_FS_H
 #define _UAPI_LINUX_MSDOS_FS_H
 
diff --git a/include/uapi/linux/msg.h b/include/uapi/linux/msg.h
index f51c8001dbe5..5d5ab81dc9be 100644
--- a/include/uapi/linux/msg.h
+++ b/include/uapi/linux/msg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_MSG_H
 #define _UAPI_LINUX_MSG_H
 
diff --git a/include/uapi/linux/mtio.h b/include/uapi/linux/mtio.h
index 18543e2db06f..a1191fecc592 100644
--- a/include/uapi/linux/mtio.h
+++ b/include/uapi/linux/mtio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* 
  * linux/mtio.h header file for Linux. Written by H. Bergman
  *
diff --git a/include/uapi/linux/n_r3964.h b/include/uapi/linux/n_r3964.h
index 81337cbf40b7..6bbd18520f30 100644
--- a/include/uapi/linux/n_r3964.h
+++ b/include/uapi/linux/n_r3964.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /* r3964 linediscipline for linux
  *
  * -----------------------------------------------------------
diff --git a/include/uapi/linux/nbd-netlink.h b/include/uapi/linux/nbd-netlink.h
index 6f7ca3d63a65..c5d0ef7aa7d5 100644
--- a/include/uapi/linux/nbd-netlink.h
+++ b/include/uapi/linux/nbd-netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2017 Facebook.  All rights reserved.
  *
diff --git a/include/uapi/linux/nbd.h b/include/uapi/linux/nbd.h
index a50527ebf671..85a3fb65e40a 100644
--- a/include/uapi/linux/nbd.h
+++ b/include/uapi/linux/nbd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * 1999 Copyright (C) Pavel Machek, pavel@ucw.cz. This code is GPL.
  * 1999/11/04 Copyright (C) 1999 VMware, Inc. (Regis "HPReg" Duchesne)
diff --git a/include/uapi/linux/ncp.h b/include/uapi/linux/ncp.h
index 99f0adeeb3f3..ca6f3d42c88f 100644
--- a/include/uapi/linux/ncp.h
+++ b/include/uapi/linux/ncp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ncp.h
  *
diff --git a/include/uapi/linux/ncp_fs.h b/include/uapi/linux/ncp_fs.h
index e13eefef0653..e76a44229d2f 100644
--- a/include/uapi/linux/ncp_fs.h
+++ b/include/uapi/linux/ncp_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ncp_fs.h
  *
diff --git a/include/uapi/linux/ncp_mount.h b/include/uapi/linux/ncp_mount.h
index dfcbea2d889f..9bdbcd68c329 100644
--- a/include/uapi/linux/ncp_mount.h
+++ b/include/uapi/linux/ncp_mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ncp_mount.h
  *
diff --git a/include/uapi/linux/ncp_no.h b/include/uapi/linux/ncp_no.h
index cddaa48fb182..654d7c7f5d92 100644
--- a/include/uapi/linux/ncp_no.h
+++ b/include/uapi/linux/ncp_no.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NCP_NO
 #define _NCP_NO
 
diff --git a/include/uapi/linux/neighbour.h b/include/uapi/linux/neighbour.h
index 3199d28980b3..904db6148476 100644
--- a/include/uapi/linux/neighbour.h
+++ b/include/uapi/linux/neighbour.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_NEIGHBOUR_H
 #define __LINUX_NEIGHBOUR_H
 
diff --git a/include/uapi/linux/net.h b/include/uapi/linux/net.h
index 9457239ed219..4dabec6bd957 100644
--- a/include/uapi/linux/net.h
+++ b/include/uapi/linux/net.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * NET		An implementation of the SOCKET network access protocol.
  *		This is the master header file for the Linux NET layer,
diff --git a/include/uapi/linux/net_dropmon.h b/include/uapi/linux/net_dropmon.h
index 2a739462caeb..5edbd0a675fd 100644
--- a/include/uapi/linux/net_dropmon.h
+++ b/include/uapi/linux/net_dropmon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __NET_DROPMON_H
 #define __NET_DROPMON_H
 
diff --git a/include/uapi/linux/net_namespace.h b/include/uapi/linux/net_namespace.h
index 778cd2c3ebf4..0187c74d8889 100644
--- a/include/uapi/linux/net_namespace.h
+++ b/include/uapi/linux/net_namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Copyright (c) 2015 6WIND S.A.
  * Author: Nicolas Dichtel <nicolas.dichtel@6wind.com>
  *
diff --git a/include/uapi/linux/net_tstamp.h b/include/uapi/linux/net_tstamp.h
index 3d421d912193..4fe104b2411f 100644
--- a/include/uapi/linux/net_tstamp.h
+++ b/include/uapi/linux/net_tstamp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Userspace API for hardware time stamping of network packets
  *
diff --git a/include/uapi/linux/netconf.h b/include/uapi/linux/netconf.h
index 7e5f0f3e31bf..c84fcdfca862 100644
--- a/include/uapi/linux/netconf.h
+++ b/include/uapi/linux/netconf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_NETCONF_H_
 #define _UAPI_LINUX_NETCONF_H_
 
diff --git a/include/uapi/linux/netdevice.h b/include/uapi/linux/netdevice.h
index 55818543342d..f3770c5b0fac 100644
--- a/include/uapi/linux/netdevice.h
+++ b/include/uapi/linux/netdevice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/netfilter.h b/include/uapi/linux/netfilter.h
index c111a91adcc0..cca10e767cd8 100644
--- a/include/uapi/linux/netfilter.h
+++ b/include/uapi/linux/netfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_NETFILTER_H
 #define _UAPI__LINUX_NETFILTER_H
 
diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index ebb5154976de..60236f694143 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
  *                         Patrick Schaaf <bof@bof.de>
  *                         Martin Josefsson <gandalf@wlug.westbo.se>
diff --git a/include/uapi/linux/netfilter/ipset/ip_set_bitmap.h b/include/uapi/linux/netfilter/ipset/ip_set_bitmap.h
index fd5024d26269..c6b146db9693 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set_bitmap.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set_bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__IP_SET_BITMAP_H
 #define _UAPI__IP_SET_BITMAP_H
 
diff --git a/include/uapi/linux/netfilter/ipset/ip_set_hash.h b/include/uapi/linux/netfilter/ipset/ip_set_hash.h
index 82deeb883ac4..880749ace798 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set_hash.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set_hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__IP_SET_HASH_H
 #define _UAPI__IP_SET_HASH_H
 
diff --git a/include/uapi/linux/netfilter/ipset/ip_set_list.h b/include/uapi/linux/netfilter/ipset/ip_set_list.h
index 84d430368266..e6d7feb522cd 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set_list.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set_list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__IP_SET_LIST_H
 #define _UAPI__IP_SET_LIST_H
 
diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
index dc947e59d03a..3fea7709a441 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_NF_CONNTRACK_COMMON_H
 #define _UAPI_NF_CONNTRACK_COMMON_H
 /* Connection state tracking for netfilter.  This is separated from,
diff --git a/include/uapi/linux/netfilter/nf_conntrack_ftp.h b/include/uapi/linux/netfilter/nf_conntrack_ftp.h
index 1030315a41b5..8eb6b9ef2071 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_ftp.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_ftp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_NF_CONNTRACK_FTP_H
 #define _UAPI_NF_CONNTRACK_FTP_H
 /* FTP tracking. */
diff --git a/include/uapi/linux/netfilter/nf_conntrack_sctp.h b/include/uapi/linux/netfilter/nf_conntrack_sctp.h
index 2cbc366c3fb4..edc6ddab0de6 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_sctp.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_NF_CONNTRACK_SCTP_H
 #define _UAPI_NF_CONNTRACK_SCTP_H
 /* SCTP tracking. */
diff --git a/include/uapi/linux/netfilter/nf_conntrack_tcp.h b/include/uapi/linux/netfilter/nf_conntrack_tcp.h
index ef9f80f0f529..74b91151d494 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_tcp.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_NF_CONNTRACK_TCP_H
 #define _UAPI_NF_CONNTRACK_TCP_H
 /* TCP tracking. */
diff --git a/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h b/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h
index 526b42496b78..64390fac6f7e 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_tuple_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NF_CONNTRACK_TUPLE_COMMON_H
 #define _NF_CONNTRACK_TUPLE_COMMON_H
 
diff --git a/include/uapi/linux/netfilter/nf_log.h b/include/uapi/linux/netfilter/nf_log.h
index d0b5fa91ff54..2ae00932d3d2 100644
--- a/include/uapi/linux/netfilter/nf_log.h
+++ b/include/uapi/linux/netfilter/nf_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NETFILTER_NF_LOG_H
 #define _NETFILTER_NF_LOG_H
 
diff --git a/include/uapi/linux/netfilter/nf_nat.h b/include/uapi/linux/netfilter/nf_nat.h
index 0880781ad7b6..a33000da7229 100644
--- a/include/uapi/linux/netfilter/nf_nat.h
+++ b/include/uapi/linux/netfilter/nf_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NETFILTER_NF_NAT_H
 #define _NETFILTER_NF_NAT_H
 
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 871afa4871bf..a3ee277b17a1 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_NF_TABLES_H
 #define _LINUX_NF_TABLES_H
 
diff --git a/include/uapi/linux/netfilter/nf_tables_compat.h b/include/uapi/linux/netfilter/nf_tables_compat.h
index 8310f5f76551..0e2b9fcb71b7 100644
--- a/include/uapi/linux/netfilter/nf_tables_compat.h
+++ b/include/uapi/linux/netfilter/nf_tables_compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NFT_COMPAT_NFNETLINK_H_
 #define _NFT_COMPAT_NFNETLINK_H_
 
diff --git a/include/uapi/linux/netfilter/nfnetlink.h b/include/uapi/linux/netfilter/nfnetlink.h
index a09906a30d77..5bc960f220b3 100644
--- a/include/uapi/linux/netfilter/nfnetlink.h
+++ b/include/uapi/linux/netfilter/nfnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_NFNETLINK_H
 #define _UAPI_NFNETLINK_H
 #include <linux/types.h>
diff --git a/include/uapi/linux/netfilter/nfnetlink_acct.h b/include/uapi/linux/netfilter/nfnetlink_acct.h
index 36047ec70f37..7cb66d3218fc 100644
--- a/include/uapi/linux/netfilter/nfnetlink_acct.h
+++ b/include/uapi/linux/netfilter/nfnetlink_acct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_NFNL_ACCT_H_
 #define _UAPI_NFNL_ACCT_H_
 
diff --git a/include/uapi/linux/netfilter/nfnetlink_compat.h b/include/uapi/linux/netfilter/nfnetlink_compat.h
index ffb95036bbd4..93bcdccef81d 100644
--- a/include/uapi/linux/netfilter/nfnetlink_compat.h
+++ b/include/uapi/linux/netfilter/nfnetlink_compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NFNETLINK_COMPAT_H
 #define _NFNETLINK_COMPAT_H
 
diff --git a/include/uapi/linux/netfilter/nfnetlink_conntrack.h b/include/uapi/linux/netfilter/nfnetlink_conntrack.h
index 6deb8867c5fc..7397e022ce6e 100644
--- a/include/uapi/linux/netfilter/nfnetlink_conntrack.h
+++ b/include/uapi/linux/netfilter/nfnetlink_conntrack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPCONNTRACK_NETLINK_H
 #define _IPCONNTRACK_NETLINK_H
 #include <linux/netfilter/nfnetlink.h>
diff --git a/include/uapi/linux/netfilter/nfnetlink_cthelper.h b/include/uapi/linux/netfilter/nfnetlink_cthelper.h
index 33659f6fad3e..a13137afc429 100644
--- a/include/uapi/linux/netfilter/nfnetlink_cthelper.h
+++ b/include/uapi/linux/netfilter/nfnetlink_cthelper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NFNL_CTHELPER_H_
 #define _NFNL_CTHELPER_H_
 
diff --git a/include/uapi/linux/netfilter/nfnetlink_cttimeout.h b/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
index f2c10dc140d6..6b20fb22717b 100644
--- a/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
+++ b/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _CTTIMEOUT_NETLINK_H
 #define _CTTIMEOUT_NETLINK_H
 #include <linux/netfilter/nfnetlink.h>
diff --git a/include/uapi/linux/netfilter/nfnetlink_log.h b/include/uapi/linux/netfilter/nfnetlink_log.h
index fb21f0c717a1..20983cb195a0 100644
--- a/include/uapi/linux/netfilter/nfnetlink_log.h
+++ b/include/uapi/linux/netfilter/nfnetlink_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NFNETLINK_LOG_H
 #define _NFNETLINK_LOG_H
 
diff --git a/include/uapi/linux/netfilter/nfnetlink_queue.h b/include/uapi/linux/netfilter/nfnetlink_queue.h
index d42f0396fe30..bcb2cb5d40b9 100644
--- a/include/uapi/linux/netfilter/nfnetlink_queue.h
+++ b/include/uapi/linux/netfilter/nfnetlink_queue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _NFNETLINK_QUEUE_H
 #define _NFNETLINK_QUEUE_H
 
diff --git a/include/uapi/linux/netfilter/x_tables.h b/include/uapi/linux/netfilter/x_tables.h
index c36969b91533..a8283f7dbc51 100644
--- a/include/uapi/linux/netfilter/x_tables.h
+++ b/include/uapi/linux/netfilter/x_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_X_TABLES_H
 #define _UAPI_X_TABLES_H
 #include <linux/kernel.h>
diff --git a/include/uapi/linux/netfilter/xt_AUDIT.h b/include/uapi/linux/netfilter/xt_AUDIT.h
index 38751d2ea52b..1b314e2f84ac 100644
--- a/include/uapi/linux/netfilter/xt_AUDIT.h
+++ b/include/uapi/linux/netfilter/xt_AUDIT.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Header file for iptables xt_AUDIT target
  *
diff --git a/include/uapi/linux/netfilter/xt_CHECKSUM.h b/include/uapi/linux/netfilter/xt_CHECKSUM.h
index 9a2e4661654e..c578088e61b9 100644
--- a/include/uapi/linux/netfilter/xt_CHECKSUM.h
+++ b/include/uapi/linux/netfilter/xt_CHECKSUM.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Header file for iptables ipt_CHECKSUM target
  *
  * (C) 2002 by Harald Welte <laforge@gnumonks.org>
diff --git a/include/uapi/linux/netfilter/xt_CLASSIFY.h b/include/uapi/linux/netfilter/xt_CLASSIFY.h
index a813bf14dd63..fe059a98c1d3 100644
--- a/include/uapi/linux/netfilter/xt_CLASSIFY.h
+++ b/include/uapi/linux/netfilter/xt_CLASSIFY.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CLASSIFY_H
 #define _XT_CLASSIFY_H
 
diff --git a/include/uapi/linux/netfilter/xt_CONNMARK.h b/include/uapi/linux/netfilter/xt_CONNMARK.h
index 2f2e48ec8023..36cc956ead1a 100644
--- a/include/uapi/linux/netfilter/xt_CONNMARK.h
+++ b/include/uapi/linux/netfilter/xt_CONNMARK.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CONNMARK_H_target
 #define _XT_CONNMARK_H_target
 
diff --git a/include/uapi/linux/netfilter/xt_CONNSECMARK.h b/include/uapi/linux/netfilter/xt_CONNSECMARK.h
index b973ff80fa1e..ca078bb3c584 100644
--- a/include/uapi/linux/netfilter/xt_CONNSECMARK.h
+++ b/include/uapi/linux/netfilter/xt_CONNSECMARK.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CONNSECMARK_H_target
 #define _XT_CONNSECMARK_H_target
 
diff --git a/include/uapi/linux/netfilter/xt_CT.h b/include/uapi/linux/netfilter/xt_CT.h
index 9e520418b858..868fa08e1fbb 100644
--- a/include/uapi/linux/netfilter/xt_CT.h
+++ b/include/uapi/linux/netfilter/xt_CT.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CT_H
 #define _XT_CT_H
 
diff --git a/include/uapi/linux/netfilter/xt_DSCP.h b/include/uapi/linux/netfilter/xt_DSCP.h
index 648e0b3bed29..223d635e8b6f 100644
--- a/include/uapi/linux/netfilter/xt_DSCP.h
+++ b/include/uapi/linux/netfilter/xt_DSCP.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* x_tables module for setting the IPv4/IPv6 DSCP field
  *
  * (C) 2002 Harald Welte <laforge@gnumonks.org>
diff --git a/include/uapi/linux/netfilter/xt_HMARK.h b/include/uapi/linux/netfilter/xt_HMARK.h
index 3fb48c8d8d78..2d4b751a7115 100644
--- a/include/uapi/linux/netfilter/xt_HMARK.h
+++ b/include/uapi/linux/netfilter/xt_HMARK.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef XT_HMARK_H_
 #define XT_HMARK_H_
 
diff --git a/include/uapi/linux/netfilter/xt_IDLETIMER.h b/include/uapi/linux/netfilter/xt_IDLETIMER.h
index 208ae9387331..3c586a19baea 100644
--- a/include/uapi/linux/netfilter/xt_IDLETIMER.h
+++ b/include/uapi/linux/netfilter/xt_IDLETIMER.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/include/linux/netfilter/xt_IDLETIMER.h
  *
diff --git a/include/uapi/linux/netfilter/xt_LED.h b/include/uapi/linux/netfilter/xt_LED.h
index f5509e7524d3..4fe0f1395807 100644
--- a/include/uapi/linux/netfilter/xt_LED.h
+++ b/include/uapi/linux/netfilter/xt_LED.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_LED_H
 #define _XT_LED_H
 
diff --git a/include/uapi/linux/netfilter/xt_LOG.h b/include/uapi/linux/netfilter/xt_LOG.h
index cac079095305..167d4ddd2476 100644
--- a/include/uapi/linux/netfilter/xt_LOG.h
+++ b/include/uapi/linux/netfilter/xt_LOG.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_LOG_H
 #define _XT_LOG_H
 
diff --git a/include/uapi/linux/netfilter/xt_MARK.h b/include/uapi/linux/netfilter/xt_MARK.h
index 41c456deba22..f1fe2b4be933 100644
--- a/include/uapi/linux/netfilter/xt_MARK.h
+++ b/include/uapi/linux/netfilter/xt_MARK.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_MARK_H_target
 #define _XT_MARK_H_target
 
diff --git a/include/uapi/linux/netfilter/xt_NFLOG.h b/include/uapi/linux/netfilter/xt_NFLOG.h
index f33070730fc8..517809771909 100644
--- a/include/uapi/linux/netfilter/xt_NFLOG.h
+++ b/include/uapi/linux/netfilter/xt_NFLOG.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_NFLOG_TARGET
 #define _XT_NFLOG_TARGET
 
diff --git a/include/uapi/linux/netfilter/xt_NFQUEUE.h b/include/uapi/linux/netfilter/xt_NFQUEUE.h
index 8bb5fe657d34..bb767fd73ed1 100644
--- a/include/uapi/linux/netfilter/xt_NFQUEUE.h
+++ b/include/uapi/linux/netfilter/xt_NFQUEUE.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* iptables module for using NFQUEUE mechanism
  *
  * (C) 2005 Harald Welte <laforge@netfilter.org>
diff --git a/include/uapi/linux/netfilter/xt_RATEEST.h b/include/uapi/linux/netfilter/xt_RATEEST.h
index ec1b57047e03..2b87a71e6266 100644
--- a/include/uapi/linux/netfilter/xt_RATEEST.h
+++ b/include/uapi/linux/netfilter/xt_RATEEST.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_RATEEST_TARGET_H
 #define _XT_RATEEST_TARGET_H
 
diff --git a/include/uapi/linux/netfilter/xt_SECMARK.h b/include/uapi/linux/netfilter/xt_SECMARK.h
index 989092bd6274..1f2a708413f5 100644
--- a/include/uapi/linux/netfilter/xt_SECMARK.h
+++ b/include/uapi/linux/netfilter/xt_SECMARK.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_SECMARK_H_target
 #define _XT_SECMARK_H_target
 
diff --git a/include/uapi/linux/netfilter/xt_SYNPROXY.h b/include/uapi/linux/netfilter/xt_SYNPROXY.h
index ca67e61d2a61..ea5eba15d4c1 100644
--- a/include/uapi/linux/netfilter/xt_SYNPROXY.h
+++ b/include/uapi/linux/netfilter/xt_SYNPROXY.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_SYNPROXY_H
 #define _XT_SYNPROXY_H
 
diff --git a/include/uapi/linux/netfilter/xt_TCPMSS.h b/include/uapi/linux/netfilter/xt_TCPMSS.h
index 9a6960afc134..65ea6c9dab4b 100644
--- a/include/uapi/linux/netfilter/xt_TCPMSS.h
+++ b/include/uapi/linux/netfilter/xt_TCPMSS.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TCPMSS_H
 #define _XT_TCPMSS_H
 
diff --git a/include/uapi/linux/netfilter/xt_TCPOPTSTRIP.h b/include/uapi/linux/netfilter/xt_TCPOPTSTRIP.h
index 7157318499c2..6bd51cd6f8da 100644
--- a/include/uapi/linux/netfilter/xt_TCPOPTSTRIP.h
+++ b/include/uapi/linux/netfilter/xt_TCPOPTSTRIP.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TCPOPTSTRIP_H
 #define _XT_TCPOPTSTRIP_H
 
diff --git a/include/uapi/linux/netfilter/xt_TEE.h b/include/uapi/linux/netfilter/xt_TEE.h
index 01092023404b..eb854917f828 100644
--- a/include/uapi/linux/netfilter/xt_TEE.h
+++ b/include/uapi/linux/netfilter/xt_TEE.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TEE_TARGET_H
 #define _XT_TEE_TARGET_H
 
diff --git a/include/uapi/linux/netfilter/xt_TPROXY.h b/include/uapi/linux/netfilter/xt_TPROXY.h
index 8d693eefdc1f..348957b02a82 100644
--- a/include/uapi/linux/netfilter/xt_TPROXY.h
+++ b/include/uapi/linux/netfilter/xt_TPROXY.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TPROXY_H
 #define _XT_TPROXY_H
 
diff --git a/include/uapi/linux/netfilter/xt_addrtype.h b/include/uapi/linux/netfilter/xt_addrtype.h
index b156baa9d55e..2102dff74c31 100644
--- a/include/uapi/linux/netfilter/xt_addrtype.h
+++ b/include/uapi/linux/netfilter/xt_addrtype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_ADDRTYPE_H
 #define _XT_ADDRTYPE_H
 
diff --git a/include/uapi/linux/netfilter/xt_bpf.h b/include/uapi/linux/netfilter/xt_bpf.h
index b97725af2ac0..a05adda26d3e 100644
--- a/include/uapi/linux/netfilter/xt_bpf.h
+++ b/include/uapi/linux/netfilter/xt_bpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_BPF_H
 #define _XT_BPF_H
 
@@ -23,6 +24,7 @@ enum xt_bpf_modes {
 	XT_BPF_MODE_FD_PINNED,
 	XT_BPF_MODE_FD_ELF,
 };
+#define XT_BPF_MODE_PATH_PINNED XT_BPF_MODE_FD_PINNED
 
 struct xt_bpf_info_v1 {
 	__u16 mode;
diff --git a/include/uapi/linux/netfilter/xt_cgroup.h b/include/uapi/linux/netfilter/xt_cgroup.h
index 1e4b37b93bef..e96dfa1b34f7 100644
--- a/include/uapi/linux/netfilter/xt_cgroup.h
+++ b/include/uapi/linux/netfilter/xt_cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_XT_CGROUP_H
 #define _UAPI_XT_CGROUP_H
 
diff --git a/include/uapi/linux/netfilter/xt_cluster.h b/include/uapi/linux/netfilter/xt_cluster.h
index 9b883c8fbf54..ed8e0561f99c 100644
--- a/include/uapi/linux/netfilter/xt_cluster.h
+++ b/include/uapi/linux/netfilter/xt_cluster.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CLUSTER_MATCH_H
 #define _XT_CLUSTER_MATCH_H
 
diff --git a/include/uapi/linux/netfilter/xt_comment.h b/include/uapi/linux/netfilter/xt_comment.h
index 0ea5e79f5bd7..85d284082542 100644
--- a/include/uapi/linux/netfilter/xt_comment.h
+++ b/include/uapi/linux/netfilter/xt_comment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_COMMENT_H
 #define _XT_COMMENT_H
 
diff --git a/include/uapi/linux/netfilter/xt_connbytes.h b/include/uapi/linux/netfilter/xt_connbytes.h
index f1d6c15bd9e3..0bae507db23e 100644
--- a/include/uapi/linux/netfilter/xt_connbytes.h
+++ b/include/uapi/linux/netfilter/xt_connbytes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CONNBYTES_H
 #define _XT_CONNBYTES_H
 
diff --git a/include/uapi/linux/netfilter/xt_connlabel.h b/include/uapi/linux/netfilter/xt_connlabel.h
index c4bc9ee9b330..2312f0ec07b2 100644
--- a/include/uapi/linux/netfilter/xt_connlabel.h
+++ b/include/uapi/linux/netfilter/xt_connlabel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <linux/types.h>
 
 #define XT_CONNLABEL_MAXBIT 127
diff --git a/include/uapi/linux/netfilter/xt_connlimit.h b/include/uapi/linux/netfilter/xt_connlimit.h
index f1656096121e..07e5e9d47882 100644
--- a/include/uapi/linux/netfilter/xt_connlimit.h
+++ b/include/uapi/linux/netfilter/xt_connlimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CONNLIMIT_H
 #define _XT_CONNLIMIT_H
 
diff --git a/include/uapi/linux/netfilter/xt_connmark.h b/include/uapi/linux/netfilter/xt_connmark.h
index efc17a8305fb..408a9654f05c 100644
--- a/include/uapi/linux/netfilter/xt_connmark.h
+++ b/include/uapi/linux/netfilter/xt_connmark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef _XT_CONNMARK_H
 #define _XT_CONNMARK_H
 
diff --git a/include/uapi/linux/netfilter/xt_conntrack.h b/include/uapi/linux/netfilter/xt_conntrack.h
index e5bd3083a843..cdd14a83d29d 100644
--- a/include/uapi/linux/netfilter/xt_conntrack.h
+++ b/include/uapi/linux/netfilter/xt_conntrack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /* Header file for kernel module to match connection tracking information.
  * GPL (C) 2001  Marc Boucher (marc@mbsi.ca).
  */
diff --git a/include/uapi/linux/netfilter/xt_cpu.h b/include/uapi/linux/netfilter/xt_cpu.h
index 93c7f11d8f42..b442e1f6f598 100644
--- a/include/uapi/linux/netfilter/xt_cpu.h
+++ b/include/uapi/linux/netfilter/xt_cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_CPU_H
 #define _XT_CPU_H
 
diff --git a/include/uapi/linux/netfilter/xt_dccp.h b/include/uapi/linux/netfilter/xt_dccp.h
index a579e1b6f040..564e61c5703f 100644
--- a/include/uapi/linux/netfilter/xt_dccp.h
+++ b/include/uapi/linux/netfilter/xt_dccp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_DCCP_H_
 #define _XT_DCCP_H_
 
diff --git a/include/uapi/linux/netfilter/xt_devgroup.h b/include/uapi/linux/netfilter/xt_devgroup.h
index 1babde0ec900..79ed351a4525 100644
--- a/include/uapi/linux/netfilter/xt_devgroup.h
+++ b/include/uapi/linux/netfilter/xt_devgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_DEVGROUP_H
 #define _XT_DEVGROUP_H
 
diff --git a/include/uapi/linux/netfilter/xt_dscp.h b/include/uapi/linux/netfilter/xt_dscp.h
index 15f8932ad5ce..7594e4df8587 100644
--- a/include/uapi/linux/netfilter/xt_dscp.h
+++ b/include/uapi/linux/netfilter/xt_dscp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* x_tables module for matching the IPv4/IPv6 DSCP field
  *
  * (C) 2002 Harald Welte <laforge@gnumonks.org>
diff --git a/include/uapi/linux/netfilter/xt_ecn.h b/include/uapi/linux/netfilter/xt_ecn.h
index 7158fca364f2..2c301c1cbff2 100644
--- a/include/uapi/linux/netfilter/xt_ecn.h
+++ b/include/uapi/linux/netfilter/xt_ecn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* iptables module for matching the ECN header in IPv4 and TCP header
  *
  * (C) 2002 Harald Welte <laforge@gnumonks.org>
diff --git a/include/uapi/linux/netfilter/xt_esp.h b/include/uapi/linux/netfilter/xt_esp.h
index ee6882408000..fa57a208f684 100644
--- a/include/uapi/linux/netfilter/xt_esp.h
+++ b/include/uapi/linux/netfilter/xt_esp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_ESP_H
 #define _XT_ESP_H
 
diff --git a/include/uapi/linux/netfilter/xt_hashlimit.h b/include/uapi/linux/netfilter/xt_hashlimit.h
index aa98573248b1..721a8de6c5b3 100644
--- a/include/uapi/linux/netfilter/xt_hashlimit.h
+++ b/include/uapi/linux/netfilter/xt_hashlimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_XT_HASHLIMIT_H
 #define _UAPI_XT_HASHLIMIT_H
 
diff --git a/include/uapi/linux/netfilter/xt_helper.h b/include/uapi/linux/netfilter/xt_helper.h
index 6b42763f999d..53aa1458d6b7 100644
--- a/include/uapi/linux/netfilter/xt_helper.h
+++ b/include/uapi/linux/netfilter/xt_helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_HELPER_H
 #define _XT_HELPER_H
 
diff --git a/include/uapi/linux/netfilter/xt_ipcomp.h b/include/uapi/linux/netfilter/xt_ipcomp.h
index 45c7e40eb8e1..69b12e76eaf7 100644
--- a/include/uapi/linux/netfilter/xt_ipcomp.h
+++ b/include/uapi/linux/netfilter/xt_ipcomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_IPCOMP_H
 #define _XT_IPCOMP_H
 
diff --git a/include/uapi/linux/netfilter/xt_iprange.h b/include/uapi/linux/netfilter/xt_iprange.h
index 25fd7cf851f0..551bec7a22fc 100644
--- a/include/uapi/linux/netfilter/xt_iprange.h
+++ b/include/uapi/linux/netfilter/xt_iprange.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_NETFILTER_XT_IPRANGE_H
 #define _LINUX_NETFILTER_XT_IPRANGE_H 1
 
diff --git a/include/uapi/linux/netfilter/xt_ipvs.h b/include/uapi/linux/netfilter/xt_ipvs.h
index e03b9c31a39d..925c76996dc4 100644
--- a/include/uapi/linux/netfilter/xt_ipvs.h
+++ b/include/uapi/linux/netfilter/xt_ipvs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_IPVS_H
 #define _XT_IPVS_H
 
diff --git a/include/uapi/linux/netfilter/xt_l2tp.h b/include/uapi/linux/netfilter/xt_l2tp.h
index 7dccfa0acbfa..990b52a49fab 100644
--- a/include/uapi/linux/netfilter/xt_l2tp.h
+++ b/include/uapi/linux/netfilter/xt_l2tp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_NETFILTER_XT_L2TP_H
 #define _LINUX_NETFILTER_XT_L2TP_H
 
diff --git a/include/uapi/linux/netfilter/xt_length.h b/include/uapi/linux/netfilter/xt_length.h
index b82ed7c4b1e0..513f653e2f6b 100644
--- a/include/uapi/linux/netfilter/xt_length.h
+++ b/include/uapi/linux/netfilter/xt_length.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_LENGTH_H
 #define _XT_LENGTH_H
 
diff --git a/include/uapi/linux/netfilter/xt_limit.h b/include/uapi/linux/netfilter/xt_limit.h
index bb47fc4d2ade..1d6e4ce9a646 100644
--- a/include/uapi/linux/netfilter/xt_limit.h
+++ b/include/uapi/linux/netfilter/xt_limit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_RATE_H
 #define _XT_RATE_H
 
diff --git a/include/uapi/linux/netfilter/xt_mac.h b/include/uapi/linux/netfilter/xt_mac.h
index 9a19a08a9181..c4dd5185cfc4 100644
--- a/include/uapi/linux/netfilter/xt_mac.h
+++ b/include/uapi/linux/netfilter/xt_mac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_MAC_H
 #define _XT_MAC_H
 
diff --git a/include/uapi/linux/netfilter/xt_mark.h b/include/uapi/linux/netfilter/xt_mark.h
index ecadc40d5cde..9d0526ced8f0 100644
--- a/include/uapi/linux/netfilter/xt_mark.h
+++ b/include/uapi/linux/netfilter/xt_mark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_MARK_H
 #define _XT_MARK_H
 
diff --git a/include/uapi/linux/netfilter/xt_multiport.h b/include/uapi/linux/netfilter/xt_multiport.h
index 5b7e72dfffc5..ffecf696454b 100644
--- a/include/uapi/linux/netfilter/xt_multiport.h
+++ b/include/uapi/linux/netfilter/xt_multiport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_MULTIPORT_H
 #define _XT_MULTIPORT_H
 
diff --git a/include/uapi/linux/netfilter/xt_nfacct.h b/include/uapi/linux/netfilter/xt_nfacct.h
index 3e19c8a86576..5c8a4d760ee3 100644
--- a/include/uapi/linux/netfilter/xt_nfacct.h
+++ b/include/uapi/linux/netfilter/xt_nfacct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_NFACCT_MATCH_H
 #define _XT_NFACCT_MATCH_H
 
diff --git a/include/uapi/linux/netfilter/xt_osf.h b/include/uapi/linux/netfilter/xt_osf.h
index e6159958b2fb..dad197e2ab99 100644
--- a/include/uapi/linux/netfilter/xt_osf.h
+++ b/include/uapi/linux/netfilter/xt_osf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2003+ Evgeniy Polyakov <johnpol@2ka.mxt.ru>
  *
diff --git a/include/uapi/linux/netfilter/xt_owner.h b/include/uapi/linux/netfilter/xt_owner.h
index 2081761714b5..fa3ad84957d5 100644
--- a/include/uapi/linux/netfilter/xt_owner.h
+++ b/include/uapi/linux/netfilter/xt_owner.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_OWNER_MATCH_H
 #define _XT_OWNER_MATCH_H
 
diff --git a/include/uapi/linux/netfilter/xt_physdev.h b/include/uapi/linux/netfilter/xt_physdev.h
index ccdde87da214..06ae115e9a91 100644
--- a/include/uapi/linux/netfilter/xt_physdev.h
+++ b/include/uapi/linux/netfilter/xt_physdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_XT_PHYSDEV_H
 #define _UAPI_XT_PHYSDEV_H
 
diff --git a/include/uapi/linux/netfilter/xt_pkttype.h b/include/uapi/linux/netfilter/xt_pkttype.h
index f265cf52faea..c31f29d2e723 100644
--- a/include/uapi/linux/netfilter/xt_pkttype.h
+++ b/include/uapi/linux/netfilter/xt_pkttype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_PKTTYPE_H
 #define _XT_PKTTYPE_H
 
diff --git a/include/uapi/linux/netfilter/xt_policy.h b/include/uapi/linux/netfilter/xt_policy.h
index d8a9800dce61..323bfa3074c5 100644
--- a/include/uapi/linux/netfilter/xt_policy.h
+++ b/include/uapi/linux/netfilter/xt_policy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_POLICY_H
 #define _XT_POLICY_H
 
diff --git a/include/uapi/linux/netfilter/xt_quota.h b/include/uapi/linux/netfilter/xt_quota.h
index 9314723f39ca..f3ba5d9e58b6 100644
--- a/include/uapi/linux/netfilter/xt_quota.h
+++ b/include/uapi/linux/netfilter/xt_quota.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_QUOTA_H
 #define _XT_QUOTA_H
 
diff --git a/include/uapi/linux/netfilter/xt_rateest.h b/include/uapi/linux/netfilter/xt_rateest.h
index 13fe50d4e4b3..52a37bdc1837 100644
--- a/include/uapi/linux/netfilter/xt_rateest.h
+++ b/include/uapi/linux/netfilter/xt_rateest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_RATEEST_MATCH_H
 #define _XT_RATEEST_MATCH_H
 
diff --git a/include/uapi/linux/netfilter/xt_realm.h b/include/uapi/linux/netfilter/xt_realm.h
index d4a82ee56a02..252aa9f79cf8 100644
--- a/include/uapi/linux/netfilter/xt_realm.h
+++ b/include/uapi/linux/netfilter/xt_realm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_REALM_H
 #define _XT_REALM_H
 
diff --git a/include/uapi/linux/netfilter/xt_recent.h b/include/uapi/linux/netfilter/xt_recent.h
index 955d562031cc..e2c33996a802 100644
--- a/include/uapi/linux/netfilter/xt_recent.h
+++ b/include/uapi/linux/netfilter/xt_recent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_NETFILTER_XT_RECENT_H
 #define _LINUX_NETFILTER_XT_RECENT_H 1
 
diff --git a/include/uapi/linux/netfilter/xt_rpfilter.h b/include/uapi/linux/netfilter/xt_rpfilter.h
index 8358d4f71952..9b3d0f25a39c 100644
--- a/include/uapi/linux/netfilter/xt_rpfilter.h
+++ b/include/uapi/linux/netfilter/xt_rpfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_RPATH_H
 #define _XT_RPATH_H
 
diff --git a/include/uapi/linux/netfilter/xt_sctp.h b/include/uapi/linux/netfilter/xt_sctp.h
index 58ffcfb7978e..4bc6d1a08781 100644
--- a/include/uapi/linux/netfilter/xt_sctp.h
+++ b/include/uapi/linux/netfilter/xt_sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_SCTP_H_
 #define _XT_SCTP_H_
 
diff --git a/include/uapi/linux/netfilter/xt_set.h b/include/uapi/linux/netfilter/xt_set.h
index d4e02348384c..8c1ca66c8a06 100644
--- a/include/uapi/linux/netfilter/xt_set.h
+++ b/include/uapi/linux/netfilter/xt_set.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_SET_H
 #define _XT_SET_H
 
diff --git a/include/uapi/linux/netfilter/xt_socket.h b/include/uapi/linux/netfilter/xt_socket.h
index 87644f832494..a7bdc9d882b0 100644
--- a/include/uapi/linux/netfilter/xt_socket.h
+++ b/include/uapi/linux/netfilter/xt_socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_SOCKET_H
 #define _XT_SOCKET_H
 
diff --git a/include/uapi/linux/netfilter/xt_state.h b/include/uapi/linux/netfilter/xt_state.h
index 7b32de886613..fe5670ef6aad 100644
--- a/include/uapi/linux/netfilter/xt_state.h
+++ b/include/uapi/linux/netfilter/xt_state.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_STATE_H
 #define _XT_STATE_H
 
diff --git a/include/uapi/linux/netfilter/xt_statistic.h b/include/uapi/linux/netfilter/xt_statistic.h
index 4e983ef0c968..bbce6fcb26e3 100644
--- a/include/uapi/linux/netfilter/xt_statistic.h
+++ b/include/uapi/linux/netfilter/xt_statistic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_STATISTIC_H
 #define _XT_STATISTIC_H
 
diff --git a/include/uapi/linux/netfilter/xt_string.h b/include/uapi/linux/netfilter/xt_string.h
index 235347c02eab..bedb015d54dd 100644
--- a/include/uapi/linux/netfilter/xt_string.h
+++ b/include/uapi/linux/netfilter/xt_string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_STRING_H
 #define _XT_STRING_H
 
diff --git a/include/uapi/linux/netfilter/xt_tcpmss.h b/include/uapi/linux/netfilter/xt_tcpmss.h
index fbac56b9e667..2268f58b4dec 100644
--- a/include/uapi/linux/netfilter/xt_tcpmss.h
+++ b/include/uapi/linux/netfilter/xt_tcpmss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TCPMSS_MATCH_H
 #define _XT_TCPMSS_MATCH_H
 
diff --git a/include/uapi/linux/netfilter/xt_tcpudp.h b/include/uapi/linux/netfilter/xt_tcpudp.h
index 38aa7b399021..658c16999819 100644
--- a/include/uapi/linux/netfilter/xt_tcpudp.h
+++ b/include/uapi/linux/netfilter/xt_tcpudp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TCPUDP_H
 #define _XT_TCPUDP_H
 
diff --git a/include/uapi/linux/netfilter/xt_time.h b/include/uapi/linux/netfilter/xt_time.h
index 095886019396..7f707c7ec858 100644
--- a/include/uapi/linux/netfilter/xt_time.h
+++ b/include/uapi/linux/netfilter/xt_time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_TIME_H
 #define _XT_TIME_H 1
 
diff --git a/include/uapi/linux/netfilter/xt_u32.h b/include/uapi/linux/netfilter/xt_u32.h
index 04d1bfea03c2..a88505ca72f8 100644
--- a/include/uapi/linux/netfilter/xt_u32.h
+++ b/include/uapi/linux/netfilter/xt_u32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _XT_U32_H
 #define _XT_U32_H 1
 
diff --git a/include/uapi/linux/netfilter_arp.h b/include/uapi/linux/netfilter_arp.h
index 92bc6ddcbf73..81b6a4cbcb72 100644
--- a/include/uapi/linux/netfilter_arp.h
+++ b/include/uapi/linux/netfilter_arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 #ifndef __LINUX_ARP_NETFILTER_H
 #define __LINUX_ARP_NETFILTER_H
 
diff --git a/include/uapi/linux/netfilter_arp/arp_tables.h b/include/uapi/linux/netfilter_arp/arp_tables.h
index ece3ad4eecda..a2a0927d9bd6 100644
--- a/include/uapi/linux/netfilter_arp/arp_tables.h
+++ b/include/uapi/linux/netfilter_arp/arp_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * 	Format of an ARP firewall descriptor
  *
diff --git a/include/uapi/linux/netfilter_arp/arpt_mangle.h b/include/uapi/linux/netfilter_arp/arpt_mangle.h
index 8c2b16a1f5a0..60135d5cc223 100644
--- a/include/uapi/linux/netfilter_arp/arpt_mangle.h
+++ b/include/uapi/linux/netfilter_arp/arpt_mangle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ARPT_MANGLE_H
 #define _ARPT_MANGLE_H
 #include <linux/netfilter_arp/arp_tables.h>
diff --git a/include/uapi/linux/netfilter_bridge.h b/include/uapi/linux/netfilter_bridge.h
index 514519b47651..12fb77633f83 100644
--- a/include/uapi/linux/netfilter_bridge.h
+++ b/include/uapi/linux/netfilter_bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_BRIDGE_NETFILTER_H
 #define _UAPI__LINUX_BRIDGE_NETFILTER_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_802_3.h b/include/uapi/linux/netfilter_bridge/ebt_802_3.h
index f37522aade24..03463e4b0246 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_802_3.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_802_3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_BRIDGE_EBT_802_3_H
 #define _UAPI__LINUX_BRIDGE_EBT_802_3_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_among.h b/include/uapi/linux/netfilter_bridge/ebt_among.h
index bd4e3ad0b706..9acf757bc1f7 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_among.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_among.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_AMONG_H
 #define __LINUX_BRIDGE_EBT_AMONG_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_arp.h b/include/uapi/linux/netfilter_bridge/ebt_arp.h
index dd4df25330e8..628b4fdae542 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_arp.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_arp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_ARP_H
 #define __LINUX_BRIDGE_EBT_ARP_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_arpreply.h b/include/uapi/linux/netfilter_bridge/ebt_arpreply.h
index 6fee3402e307..ed41ae053597 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_arpreply.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_arpreply.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_ARPREPLY_H
 #define __LINUX_BRIDGE_EBT_ARPREPLY_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_ip.h b/include/uapi/linux/netfilter_bridge/ebt_ip.h
index c4bbc41b0ea4..8e462fb1983f 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_ip.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_ip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ebt_ip
  *
diff --git a/include/uapi/linux/netfilter_bridge/ebt_ip6.h b/include/uapi/linux/netfilter_bridge/ebt_ip6.h
index a062f0ce95f9..057945dd66bc 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_ip6.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_ip6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ebt_ip6
  *
diff --git a/include/uapi/linux/netfilter_bridge/ebt_limit.h b/include/uapi/linux/netfilter_bridge/ebt_limit.h
index 66d80b30ba0e..c2ac02e1fab6 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_limit.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_limit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_LIMIT_H
 #define __LINUX_BRIDGE_EBT_LIMIT_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_log.h b/include/uapi/linux/netfilter_bridge/ebt_log.h
index 7e7f1d1fe494..f6724155af91 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_log.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_LOG_H
 #define __LINUX_BRIDGE_EBT_LOG_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_mark_m.h b/include/uapi/linux/netfilter_bridge/ebt_mark_m.h
index 410f9e5a71d4..098ac78cd1e6 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_mark_m.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_mark_m.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_MARK_M_H
 #define __LINUX_BRIDGE_EBT_MARK_M_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_mark_t.h b/include/uapi/linux/netfilter_bridge/ebt_mark_t.h
index 7d5a268a4311..8810f1c12af3 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_mark_t.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_mark_t.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_MARK_T_H
 #define __LINUX_BRIDGE_EBT_MARK_T_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_nat.h b/include/uapi/linux/netfilter_bridge/ebt_nat.h
index c990d74ee966..49da2f9be021 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_nat.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_NAT_H
 #define __LINUX_BRIDGE_EBT_NAT_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_nflog.h b/include/uapi/linux/netfilter_bridge/ebt_nflog.h
index df829fce9125..f5cdc068c264 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_nflog.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_nflog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_NFLOG_H
 #define __LINUX_BRIDGE_EBT_NFLOG_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_pkttype.h b/include/uapi/linux/netfilter_bridge/ebt_pkttype.h
index c241badcd036..32c5d08b31d3 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_pkttype.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_pkttype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_PKTTYPE_H
 #define __LINUX_BRIDGE_EBT_PKTTYPE_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_redirect.h b/include/uapi/linux/netfilter_bridge/ebt_redirect.h
index dd9622ce8488..dc7a7ce25902 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_redirect.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_redirect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_REDIRECT_H
 #define __LINUX_BRIDGE_EBT_REDIRECT_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_stp.h b/include/uapi/linux/netfilter_bridge/ebt_stp.h
index 1025b9f5fb7d..94f68dedc3f6 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_stp.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_stp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_STP_H
 #define __LINUX_BRIDGE_EBT_STP_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebt_vlan.h b/include/uapi/linux/netfilter_bridge/ebt_vlan.h
index 967d1d5cf98d..fb0d8f604c23 100644
--- a/include/uapi/linux/netfilter_bridge/ebt_vlan.h
+++ b/include/uapi/linux/netfilter_bridge/ebt_vlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_BRIDGE_EBT_VLAN_H
 #define __LINUX_BRIDGE_EBT_VLAN_H
 
diff --git a/include/uapi/linux/netfilter_bridge/ebtables.h b/include/uapi/linux/netfilter_bridge/ebtables.h
index e3cdf9f1a259..9ff57c0a0199 100644
--- a/include/uapi/linux/netfilter_bridge/ebtables.h
+++ b/include/uapi/linux/netfilter_bridge/ebtables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  ebtables
  *
diff --git a/include/uapi/linux/netfilter_decnet.h b/include/uapi/linux/netfilter_decnet.h
index 0b09732aacd5..9089c38f6abe 100644
--- a/include/uapi/linux/netfilter_decnet.h
+++ b/include/uapi/linux/netfilter_decnet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_DECNET_NETFILTER_H
 #define __LINUX_DECNET_NETFILTER_H
 
diff --git a/include/uapi/linux/netfilter_ipv4.h b/include/uapi/linux/netfilter_ipv4.h
index 91ddd1f6fd4b..e6b1a84f5dd3 100644
--- a/include/uapi/linux/netfilter_ipv4.h
+++ b/include/uapi/linux/netfilter_ipv4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* IPv4-specific defines for netfilter. 
  * (C)1998 Rusty Russell -- This code is GPL.
  */
diff --git a/include/uapi/linux/netfilter_ipv4/ip_tables.h b/include/uapi/linux/netfilter_ipv4/ip_tables.h
index d0da53d96d93..6aaeb14bfce1 100644
--- a/include/uapi/linux/netfilter_ipv4/ip_tables.h
+++ b/include/uapi/linux/netfilter_ipv4/ip_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * 25-Jul-1998 Major changes to allow for ip chain table
  *
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_CLUSTERIP.h b/include/uapi/linux/netfilter_ipv4/ipt_CLUSTERIP.h
index eac0f6548f47..ff6599494fe6 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_CLUSTERIP.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_CLUSTERIP.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPT_CLUSTERIP_H_target
 #define _IPT_CLUSTERIP_H_target
 
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_ECN.h b/include/uapi/linux/netfilter_ipv4/ipt_ECN.h
index bb88d5315a4d..e3630fd045b8 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_ECN.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_ECN.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Header file for iptables ipt_ECN target
  *
  * (C) 2002 by Harald Welte <laforge@gnumonks.org>
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_LOG.h b/include/uapi/linux/netfilter_ipv4/ipt_LOG.h
index 5d8152077d71..6dec14ba851b 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_LOG.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_LOG.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPT_LOG_H
 #define _IPT_LOG_H
 
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_REJECT.h b/include/uapi/linux/netfilter_ipv4/ipt_REJECT.h
index 4293a1ad1b01..ae61ddd328b0 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_REJECT.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_REJECT.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPT_REJECT_H
 #define _IPT_REJECT_H
 
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_TTL.h b/include/uapi/linux/netfilter_ipv4/ipt_TTL.h
index f6ac169d92f9..57d2fc67a943 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_TTL.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_TTL.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* TTL modification module for IP tables
  * (C) 2000 by Harald Welte <laforge@netfilter.org> */
 
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_ah.h b/include/uapi/linux/netfilter_ipv4/ipt_ah.h
index 4e02bb0119e3..606ce90dbf83 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_ah.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_ah.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPT_AH_H
 #define _IPT_AH_H
 
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_ecn.h b/include/uapi/linux/netfilter_ipv4/ipt_ecn.h
index 0e0c063dbf60..8121bec47026 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_ecn.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_ecn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IPT_ECN_H
 #define _IPT_ECN_H
 
diff --git a/include/uapi/linux/netfilter_ipv4/ipt_ttl.h b/include/uapi/linux/netfilter_ipv4/ipt_ttl.h
index 37bee4442486..ad0226a8629b 100644
--- a/include/uapi/linux/netfilter_ipv4/ipt_ttl.h
+++ b/include/uapi/linux/netfilter_ipv4/ipt_ttl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* IP tables module for matching the value of the TTL
  * (C) 2000 by Harald Welte <laforge@gnumonks.org> */
 
diff --git a/include/uapi/linux/netfilter_ipv6.h b/include/uapi/linux/netfilter_ipv6.h
index 12497c6c7949..2f9724611cc2 100644
--- a/include/uapi/linux/netfilter_ipv6.h
+++ b/include/uapi/linux/netfilter_ipv6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* IPv6-specific defines for netfilter. 
  * (C)1998 Rusty Russell -- This code is GPL.
  * (C)1999 David Jeffery
diff --git a/include/uapi/linux/netfilter_ipv6/ip6_tables.h b/include/uapi/linux/netfilter_ipv6/ip6_tables.h
index d1b22653daf2..031d0a43bed2 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6_tables.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6_tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * 25-Jul-1998 Major changes to allow for ip chain table
  *
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_HL.h b/include/uapi/linux/netfilter_ipv6/ip6t_HL.h
index ebd8ead1bb63..eaed56a287b4 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_HL.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_HL.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Hop Limit modification module for ip6tables
  * Maciej Soltysiak <solt@dns.toxicfilms.tv>
  * Based on HW's TTL module */
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_LOG.h b/include/uapi/linux/netfilter_ipv6/ip6t_LOG.h
index 3dd0bc4e0735..7553a434e4da 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_LOG.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_LOG.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_LOG_H
 #define _IP6T_LOG_H
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_NPT.h b/include/uapi/linux/netfilter_ipv6/ip6t_NPT.h
index f763355481b5..422aef07657a 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_NPT.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_NPT.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __NETFILTER_IP6T_NPT
 #define __NETFILTER_IP6T_NPT
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h b/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h
index cd2e940c8bf5..158ffa5f45b7 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_REJECT.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_REJECT_H
 #define _IP6T_REJECT_H
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_ah.h b/include/uapi/linux/netfilter_ipv6/ip6t_ah.h
index 5da2b65cb3ad..9a4174e08f9c 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_ah.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_ah.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_AH_H
 #define _IP6T_AH_H
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_frag.h b/include/uapi/linux/netfilter_ipv6/ip6t_frag.h
index dfd8bc2268cf..9acac816bba3 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_frag.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_frag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_FRAG_H
 #define _IP6T_FRAG_H
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_hl.h b/include/uapi/linux/netfilter_ipv6/ip6t_hl.h
index 6e76dbc6c19a..6b62f9418eb2 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_hl.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_hl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* ip6tables module for matching the Hop Limit value
  * Maciej Soltysiak <solt@dns.toxicfilms.tv>
  * Based on HW's ttl module */
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_ipv6header.h b/include/uapi/linux/netfilter_ipv6/ip6t_ipv6header.h
index efae3a20c214..5a5196914764 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_ipv6header.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_ipv6header.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* ipv6header match - matches IPv6 packets based
 on whether they contain certain headers */
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_mh.h b/include/uapi/linux/netfilter_ipv6/ip6t_mh.h
index a7729a5025cd..906196283185 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_mh.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_mh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_MH_H
 #define _IP6T_MH_H
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_opts.h b/include/uapi/linux/netfilter_ipv6/ip6t_opts.h
index 17d419a811fd..79f9a477c5ac 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_opts.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_opts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_OPTS_H
 #define _IP6T_OPTS_H
 
diff --git a/include/uapi/linux/netfilter_ipv6/ip6t_rt.h b/include/uapi/linux/netfilter_ipv6/ip6t_rt.h
index 558f81e46fb9..9c23e8ad20b9 100644
--- a/include/uapi/linux/netfilter_ipv6/ip6t_rt.h
+++ b/include/uapi/linux/netfilter_ipv6/ip6t_rt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _IP6T_RT_H
 #define _IP6T_RT_H
 
diff --git a/include/uapi/linux/netlink.h b/include/uapi/linux/netlink.h
index e8af60a7c56d..776bc92e9118 100644
--- a/include/uapi/linux/netlink.h
+++ b/include/uapi/linux/netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_NETLINK_H
 #define _UAPI__LINUX_NETLINK_H
 
diff --git a/include/uapi/linux/netlink_diag.h b/include/uapi/linux/netlink_diag.h
index 6dcd4de3397b..dfa61be43d2f 100644
--- a/include/uapi/linux/netlink_diag.h
+++ b/include/uapi/linux/netlink_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __NETLINK_DIAG_H__
 #define __NETLINK_DIAG_H__
 
diff --git a/include/uapi/linux/netrom.h b/include/uapi/linux/netrom.h
index af7313cc9cb6..7498ea3c3940 100644
--- a/include/uapi/linux/netrom.h
+++ b/include/uapi/linux/netrom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * These are the public elements of the Linux kernel NET/ROM implementation.
  * For kernel AX.25 see the file ax25.h. This file requires ax25.h for the
diff --git a/include/uapi/linux/nfs.h b/include/uapi/linux/nfs.h
index 5e6296160361..057d22a48416 100644
--- a/include/uapi/linux/nfs.h
+++ b/include/uapi/linux/nfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * NFS protocol definitions
  *
diff --git a/include/uapi/linux/nfs2.h b/include/uapi/linux/nfs2.h
index fde24b30cc9e..e0237e0985b9 100644
--- a/include/uapi/linux/nfs2.h
+++ b/include/uapi/linux/nfs2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * NFS protocol definitions
  *
diff --git a/include/uapi/linux/nfs3.h b/include/uapi/linux/nfs3.h
index 231ef4e69829..37e4b34e6b43 100644
--- a/include/uapi/linux/nfs3.h
+++ b/include/uapi/linux/nfs3.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * NFSv3 protocol definitions
  */
diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h
index 4ae62796bfde..8572930cf5b0 100644
--- a/include/uapi/linux/nfs4.h
+++ b/include/uapi/linux/nfs4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  include/linux/nfs4.h
  *
diff --git a/include/uapi/linux/nfs4_mount.h b/include/uapi/linux/nfs4_mount.h
index a0dcf6655657..d20bb869bb99 100644
--- a/include/uapi/linux/nfs4_mount.h
+++ b/include/uapi/linux/nfs4_mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_NFS4_MOUNT_H
 #define _LINUX_NFS4_MOUNT_H
 
diff --git a/include/uapi/linux/nfs_fs.h b/include/uapi/linux/nfs_fs.h
index 49142287999c..7bcc8cd6831d 100644
--- a/include/uapi/linux/nfs_fs.h
+++ b/include/uapi/linux/nfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  linux/include/linux/nfs_fs.h
  *
diff --git a/include/uapi/linux/nfs_mount.h b/include/uapi/linux/nfs_mount.h
index 64b0f22f5c4c..e44e00616ab5 100644
--- a/include/uapi/linux/nfs_mount.h
+++ b/include/uapi/linux/nfs_mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_NFS_MOUNT_H
 #define _LINUX_NFS_MOUNT_H
 
diff --git a/include/uapi/linux/nfsacl.h b/include/uapi/linux/nfsacl.h
index 552726631162..ca9a8501ff30 100644
--- a/include/uapi/linux/nfsacl.h
+++ b/include/uapi/linux/nfsacl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * File: linux/nfsacl.h
  *
diff --git a/include/uapi/linux/nfsd/cld.h b/include/uapi/linux/nfsd/cld.h
index ec260274be0c..f8f5cccad749 100644
--- a/include/uapi/linux/nfsd/cld.h
+++ b/include/uapi/linux/nfsd/cld.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Upcall description for nfsdcld communication
  *
diff --git a/include/uapi/linux/nfsd/debug.h b/include/uapi/linux/nfsd/debug.h
index 28ec6c9c421a..7301cdc79a33 100644
--- a/include/uapi/linux/nfsd/debug.h
+++ b/include/uapi/linux/nfsd/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/include/linux/nfsd/debug.h
  *
diff --git a/include/uapi/linux/nfsd/export.h b/include/uapi/linux/nfsd/export.h
index c3be256107c6..2124ba904779 100644
--- a/include/uapi/linux/nfsd/export.h
+++ b/include/uapi/linux/nfsd/export.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/linux/nfsd/export.h
  * 
diff --git a/include/uapi/linux/nfsd/nfsfh.h b/include/uapi/linux/nfsd/nfsfh.h
index 20391235d088..ff0ca88b1c8f 100644
--- a/include/uapi/linux/nfsd/nfsfh.h
+++ b/include/uapi/linux/nfsd/nfsfh.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file describes the layout of the file handles as passed
  * over the wire.
diff --git a/include/uapi/linux/nfsd/stats.h b/include/uapi/linux/nfsd/stats.h
index 9fb7a0644263..b1a38ae14a02 100644
--- a/include/uapi/linux/nfsd/stats.h
+++ b/include/uapi/linux/nfsd/stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/include/linux/nfsd/stats.h
  *
diff --git a/include/uapi/linux/nilfs2_api.h b/include/uapi/linux/nilfs2_api.h
index ef4c1de89b11..8b9b89104f3d 100644
--- a/include/uapi/linux/nilfs2_api.h
+++ b/include/uapi/linux/nilfs2_api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * nilfs2_api.h - NILFS2 user space API
  *
diff --git a/include/uapi/linux/nilfs2_ondisk.h b/include/uapi/linux/nilfs2_ondisk.h
index 2a8a3addb675..a7e66ab11d1d 100644
--- a/include/uapi/linux/nilfs2_ondisk.h
+++ b/include/uapi/linux/nilfs2_ondisk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * nilfs2_ondisk.h - NILFS2 on-disk structures
  *
diff --git a/include/uapi/linux/nsfs.h b/include/uapi/linux/nsfs.h
index 1a3ca79f466b..a0c8552b64ee 100644
--- a/include/uapi/linux/nsfs.h
+++ b/include/uapi/linux/nsfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_NSFS_H
 #define __LINUX_NSFS_H
 
diff --git a/include/uapi/linux/nubus.h b/include/uapi/linux/nubus.h
index ac516064f0ee..f3776cc80f4d 100644
--- a/include/uapi/linux/nubus.h
+++ b/include/uapi/linux/nubus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
   nubus.h: various definitions and prototypes for NuBus drivers to use.
 
diff --git a/include/uapi/linux/nvme_ioctl.h b/include/uapi/linux/nvme_ioctl.h
index 50ff21f748b6..6e74b1eaf541 100644
--- a/include/uapi/linux/nvme_ioctl.h
+++ b/include/uapi/linux/nvme_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for the NVM Express ioctl interface
  * Copyright (c) 2011-2014, Intel Corporation.
diff --git a/include/uapi/linux/nvram.h b/include/uapi/linux/nvram.h
index 0986c4337383..4bee8e72dab4 100644
--- a/include/uapi/linux/nvram.h
+++ b/include/uapi/linux/nvram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_NVRAM_H
 #define _UAPI_LINUX_NVRAM_H
 
diff --git a/include/uapi/linux/omap3isp.h b/include/uapi/linux/omap3isp.h
index c090cf9249bb..1a920145db04 100644
--- a/include/uapi/linux/omap3isp.h
+++ b/include/uapi/linux/omap3isp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * omap3isp.h
  *
diff --git a/include/uapi/linux/omapfb.h b/include/uapi/linux/omapfb.h
index 7c97bc00ac6d..44f43af4c699 100644
--- a/include/uapi/linux/omapfb.h
+++ b/include/uapi/linux/omapfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * File: include/linux/omapfb.h
  *
diff --git a/include/uapi/linux/oom.h b/include/uapi/linux/oom.h
index b29272d621ce..750b1c5a4dec 100644
--- a/include/uapi/linux/oom.h
+++ b/include/uapi/linux/oom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__INCLUDE_LINUX_OOM_H
 #define _UAPI__INCLUDE_LINUX_OOM_H
 
diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 156ee4cab82e..36d0b161e066 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 
 /*
  * Copyright (c) 2007-2017 Nicira, Inc.
diff --git a/include/uapi/linux/packet_diag.h b/include/uapi/linux/packet_diag.h
index 0c5d5dd61b6a..349ddf0a96af 100644
--- a/include/uapi/linux/packet_diag.h
+++ b/include/uapi/linux/packet_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __PACKET_DIAG_H__
 #define __PACKET_DIAG_H__
 
diff --git a/include/uapi/linux/param.h b/include/uapi/linux/param.h
index 092e92f67b50..94e0c57a75b7 100644
--- a/include/uapi/linux/param.h
+++ b/include/uapi/linux/param.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_PARAM_H
 #define _LINUX_PARAM_H
 
diff --git a/include/uapi/linux/patchkey.h b/include/uapi/linux/patchkey.h
index 1bda0e56bc5e..3eb246e94733 100644
--- a/include/uapi/linux/patchkey.h
+++ b/include/uapi/linux/patchkey.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * <linux/patchkey.h> -- definition of _PATCHKEY macro
  *
diff --git a/include/uapi/linux/pci.h b/include/uapi/linux/pci.h
index 3c292bc0d1c1..a769eefc5139 100644
--- a/include/uapi/linux/pci.h
+++ b/include/uapi/linux/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	pci.h
  *
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index f8d58045926f..87c2c840b27d 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	pci_regs.h
  *
diff --git a/include/uapi/linux/pcitest.h b/include/uapi/linux/pcitest.h
index a6aa10c45ad1..953cf036cb26 100644
--- a/include/uapi/linux/pcitest.h
+++ b/include/uapi/linux/pcitest.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /**
  * pcitest.h - PCI test uapi defines
  *
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 140ae638cfd6..362493a2f950 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Performance events:
  *
diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
index aa169c4339d2..49796b7756af 100644
--- a/include/uapi/linux/personality.h
+++ b/include/uapi/linux/personality.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_PERSONALITY_H
 #define _UAPI_LINUX_PERSONALITY_H
 
diff --git a/include/uapi/linux/pfkeyv2.h b/include/uapi/linux/pfkeyv2.h
index ada7f0171ccc..d65b11785260 100644
--- a/include/uapi/linux/pfkeyv2.h
+++ b/include/uapi/linux/pfkeyv2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* PF_KEY user interface, this is defined by rfc2367 so
  * do not make arbitrary modifications or else this header
  * file will not be compliant.
diff --git a/include/uapi/linux/pg.h b/include/uapi/linux/pg.h
index db994bb0c794..364c350e85cd 100644
--- a/include/uapi/linux/pg.h
+++ b/include/uapi/linux/pg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /* 	pg.h (c) 1998  Grant R. Guenther <grant@torque.net>
  		       Under the terms of the GNU General Public License
 
diff --git a/include/uapi/linux/phantom.h b/include/uapi/linux/phantom.h
index 94dd6645c60a..dbef708ab3b4 100644
--- a/include/uapi/linux/phantom.h
+++ b/include/uapi/linux/phantom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (C) 2005-2007 Jiri Slaby <jirislaby@gmail.com>
  *
diff --git a/include/uapi/linux/phonet.h b/include/uapi/linux/phonet.h
index a3e1d65b3ed9..a2f6b37a5937 100644
--- a/include/uapi/linux/phonet.h
+++ b/include/uapi/linux/phonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /**
  * file phonet.h
  *
diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
index d5e2bf68d0d4..46c506615f4a 100644
--- a/include/uapi/linux/pkt_cls.h
+++ b/include/uapi/linux/pkt_cls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_PKT_CLS_H
 #define __LINUX_PKT_CLS_H
 
diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 099bf5528fed..703cd9df6cef 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_PKT_SCHED_H
 #define __LINUX_PKT_SCHED_H
 
diff --git a/include/uapi/linux/pktcdvd.h b/include/uapi/linux/pktcdvd.h
index 2640b9d4e243..9cbb55d21c94 100644
--- a/include/uapi/linux/pktcdvd.h
+++ b/include/uapi/linux/pktcdvd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2000 Jens Axboe <axboe@suse.de>
  * Copyright (C) 2001-2004 Peter Osterlund <petero2@telia.com>
diff --git a/include/uapi/linux/pmu.h b/include/uapi/linux/pmu.h
index caead364b6eb..89cb1acea93a 100644
--- a/include/uapi/linux/pmu.h
+++ b/include/uapi/linux/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for talking to the PMU.  The PMU is a microcontroller
  * which controls battery charging and system power on PowerBook 3400
diff --git a/include/uapi/linux/posix_acl.h b/include/uapi/linux/posix_acl.h
index 1037cb19aa17..217e4e26ab60 100644
--- a/include/uapi/linux/posix_acl.h
+++ b/include/uapi/linux/posix_acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2002 Andreas Gruenbacher <a.gruenbacher@computer.org>
  * Copyright (C) 2016 Red Hat, Inc.
diff --git a/include/uapi/linux/posix_acl_xattr.h b/include/uapi/linux/posix_acl_xattr.h
index 8b579844109b..506380f0b91b 100644
--- a/include/uapi/linux/posix_acl_xattr.h
+++ b/include/uapi/linux/posix_acl_xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2002 Andreas Gruenbacher <a.gruenbacher@computer.org>
  * Copyright (C) 2016 Red Hat, Inc.
diff --git a/include/uapi/linux/posix_types.h b/include/uapi/linux/posix_types.h
index 988f76e636e3..9a7a740b35a2 100644
--- a/include/uapi/linux/posix_types.h
+++ b/include/uapi/linux/posix_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_POSIX_TYPES_H
 #define _LINUX_POSIX_TYPES_H
 
diff --git a/include/uapi/linux/ppdev.h b/include/uapi/linux/ppdev.h
index dc18c5d23ebe..8fe3c64d149e 100644
--- a/include/uapi/linux/ppdev.h
+++ b/include/uapi/linux/ppdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * linux/include/linux/ppdev.h
  *
diff --git a/include/uapi/linux/ppp-comp.h b/include/uapi/linux/ppp-comp.h
index 0a15bbb04e19..0fb7623e9548 100644
--- a/include/uapi/linux/ppp-comp.h
+++ b/include/uapi/linux/ppp-comp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ppp-comp.h - Definitions for doing PPP packet compression.
  *
diff --git a/include/uapi/linux/ppp-ioctl.h b/include/uapi/linux/ppp-ioctl.h
index 63a23a3b8bb7..b19a9c249b15 100644
--- a/include/uapi/linux/ppp-ioctl.h
+++ b/include/uapi/linux/ppp-ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ppp-ioctl.h - PPP ioctl definitions.
  *
diff --git a/include/uapi/linux/ppp_defs.h b/include/uapi/linux/ppp_defs.h
index 283fc05dbbda..fff51b91b409 100644
--- a/include/uapi/linux/ppp_defs.h
+++ b/include/uapi/linux/ppp_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ppp_defs.h - PPP definitions.
  *
diff --git a/include/uapi/linux/pps.h b/include/uapi/linux/pps.h
index c29d6b791c08..009ebcd8ced5 100644
--- a/include/uapi/linux/pps.h
+++ b/include/uapi/linux/pps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * PPS API header
  *
diff --git a/include/uapi/linux/pr.h b/include/uapi/linux/pr.h
index 645ef3cf3dd0..ccc78cbf1221 100644
--- a/include/uapi/linux/pr.h
+++ b/include/uapi/linux/pr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_PR_H
 #define _UAPI_PR_H
 
diff --git a/include/uapi/linux/prctl.h b/include/uapi/linux/prctl.h
index a8d0759a9e40..b640071421f7 100644
--- a/include/uapi/linux/prctl.h
+++ b/include/uapi/linux/prctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_PRCTL_H
 #define _LINUX_PRCTL_H
 
diff --git a/include/uapi/linux/psample.h b/include/uapi/linux/psample.h
index ed48996ec0e8..ce1116cff53d 100644
--- a/include/uapi/linux/psample.h
+++ b/include/uapi/linux/psample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_PSAMPLE_H
 #define __UAPI_PSAMPLE_H
 
diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h
index 3d7a0fc021a7..760e52a9640f 100644
--- a/include/uapi/linux/psci.h
+++ b/include/uapi/linux/psci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * ARM Power State and Coordination Interface (PSCI) header
  *
diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h
index ac6dded80ffa..3039bf6a742e 100644
--- a/include/uapi/linux/ptp_clock.h
+++ b/include/uapi/linux/ptp_clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * PTP 1588 clock support - user space interface
  *
diff --git a/include/uapi/linux/ptrace.h b/include/uapi/linux/ptrace.h
index fb8106509000..e3939e00980b 100644
--- a/include/uapi/linux/ptrace.h
+++ b/include/uapi/linux/ptrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_PTRACE_H
 #define _UAPI_LINUX_PTRACE_H
 /* ptrace.h */
diff --git a/include/uapi/linux/qnx4_fs.h b/include/uapi/linux/qnx4_fs.h
index 8b9aee1a9ce3..31487325d265 100644
--- a/include/uapi/linux/qnx4_fs.h
+++ b/include/uapi/linux/qnx4_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Name                         : qnx4_fs.h
  *  Author                       : Richard Frowijn
diff --git a/include/uapi/linux/qnxtypes.h b/include/uapi/linux/qnxtypes.h
index bebbe5cc4fb8..eacfab10e821 100644
--- a/include/uapi/linux/qnxtypes.h
+++ b/include/uapi/linux/qnxtypes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Name                         : qnxtypes.h
  *  Author                       : Richard Frowijn
diff --git a/include/uapi/linux/qrtr.h b/include/uapi/linux/qrtr.h
index 9d76c566f66e..5d9aab1f1893 100644
--- a/include/uapi/linux/qrtr.h
+++ b/include/uapi/linux/qrtr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_QRTR_H
 #define _LINUX_QRTR_H
 
diff --git a/include/uapi/linux/radeonfb.h b/include/uapi/linux/radeonfb.h
index 8c4bbdecc44f..86eafb805ed9 100644
--- a/include/uapi/linux/radeonfb.h
+++ b/include/uapi/linux/radeonfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_RADEONFB_H__
 #define __LINUX_RADEONFB_H__
 
diff --git a/include/uapi/linux/raid/md_p.h b/include/uapi/linux/raid/md_p.h
index b9197976b660..b0d15c73f6d7 100644
--- a/include/uapi/linux/raid/md_p.h
+++ b/include/uapi/linux/raid/md_p.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
    md_p.h : physical layout of Linux RAID devices
           Copyright (C) 1996-98 Ingo Molnar, Gadi Oxman
diff --git a/include/uapi/linux/raid/md_u.h b/include/uapi/linux/raid/md_u.h
index 36cd8210a5d1..105307244961 100644
--- a/include/uapi/linux/raid/md_u.h
+++ b/include/uapi/linux/raid/md_u.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
    md_u.h : user <=> kernel API between Linux raidtools and RAID drivers
           Copyright (C) 1998 Ingo Molnar
diff --git a/include/uapi/linux/random.h b/include/uapi/linux/random.h
index 3f93d1695e7f..c34f4490d025 100644
--- a/include/uapi/linux/random.h
+++ b/include/uapi/linux/random.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/linux/random.h
  *
diff --git a/include/uapi/linux/raw.h b/include/uapi/linux/raw.h
index 62d543e70603..dc96dda479d6 100644
--- a/include/uapi/linux/raw.h
+++ b/include/uapi/linux/raw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_RAW_H
 #define __LINUX_RAW_H
 
diff --git a/include/uapi/linux/rds.h b/include/uapi/linux/rds.h
index 198892b95f09..e71d4491f225 100644
--- a/include/uapi/linux/rds.h
+++ b/include/uapi/linux/rds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2008 Oracle.  All rights reserved.
  *
diff --git a/include/uapi/linux/reboot.h b/include/uapi/linux/reboot.h
index 09d056d4fc50..58e64398efc5 100644
--- a/include/uapi/linux/reboot.h
+++ b/include/uapi/linux/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_REBOOT_H
 #define _UAPI_LINUX_REBOOT_H
 
diff --git a/include/uapi/linux/reiserfs_fs.h b/include/uapi/linux/reiserfs_fs.h
index ea3700cd7367..5bb921409f2b 100644
--- a/include/uapi/linux/reiserfs_fs.h
+++ b/include/uapi/linux/reiserfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 1996, 1997, 1998 Hans Reiser, see reiserfs/README for licensing and copyright details
  */
diff --git a/include/uapi/linux/reiserfs_xattr.h b/include/uapi/linux/reiserfs_xattr.h
index 38fdd648be21..28f10842f047 100644
--- a/include/uapi/linux/reiserfs_xattr.h
+++ b/include/uapi/linux/reiserfs_xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
   File: linux/reiserfs_xattr.h
 */
diff --git a/include/uapi/linux/resource.h b/include/uapi/linux/resource.h
index 36fb3b5fb181..cc00fd079631 100644
--- a/include/uapi/linux/resource.h
+++ b/include/uapi/linux/resource.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_RESOURCE_H
 #define _UAPI_LINUX_RESOURCE_H
 
diff --git a/include/uapi/linux/rio_cm_cdev.h b/include/uapi/linux/rio_cm_cdev.h
index 6edb900d318d..d05dc3226f8e 100644
--- a/include/uapi/linux/rio_cm_cdev.h
+++ b/include/uapi/linux/rio_cm_cdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Copyright (c) 2015, Integrated Device Technology Inc.
  * Copyright (c) 2015, Prodrive Technologies
diff --git a/include/uapi/linux/rio_mport_cdev.h b/include/uapi/linux/rio_mport_cdev.h
index 5796bf1d06ad..9bc9f98e353a 100644
--- a/include/uapi/linux/rio_mport_cdev.h
+++ b/include/uapi/linux/rio_mport_cdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Copyright (c) 2015-2016, Integrated Device Technology Inc.
  * Copyright (c) 2015, Prodrive Technologies
diff --git a/include/uapi/linux/romfs_fs.h b/include/uapi/linux/romfs_fs.h
index 5f57f93b284f..a7f1585accef 100644
--- a/include/uapi/linux/romfs_fs.h
+++ b/include/uapi/linux/romfs_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_ROMFS_FS_H
 #define __LINUX_ROMFS_FS_H
 
diff --git a/include/uapi/linux/rose.h b/include/uapi/linux/rose.h
index 1fcfe95893b8..19aa4693c8fc 100644
--- a/include/uapi/linux/rose.h
+++ b/include/uapi/linux/rose.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * These are the public elements of the Linux kernel Rose implementation.
  * For kernel AX.25 see the file ax25.h. This file requires ax25.h for the
diff --git a/include/uapi/linux/route.h b/include/uapi/linux/route.h
index 6600708311c8..a0de9a7331a2 100644
--- a/include/uapi/linux/route.h
+++ b/include/uapi/linux/route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/rpmsg.h b/include/uapi/linux/rpmsg.h
index dedc226e0d3f..225eb38705dc 100644
--- a/include/uapi/linux/rpmsg.h
+++ b/include/uapi/linux/rpmsg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2016, Linaro Ltd.
  *
diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h
index f8c82e6f25d5..2ad1788968d0 100644
--- a/include/uapi/linux/rtc.h
+++ b/include/uapi/linux/rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Generic RTC interface.
  * This version contains the part of the user interface to the Real Time Clock
diff --git a/include/uapi/linux/rtnetlink.h b/include/uapi/linux/rtnetlink.h
index dab7dad9e01a..a6d37c2ea355 100644
--- a/include/uapi/linux/rtnetlink.h
+++ b/include/uapi/linux/rtnetlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_RTNETLINK_H
 #define _UAPI__LINUX_RTNETLINK_H
 
diff --git a/include/uapi/linux/scc.h b/include/uapi/linux/scc.h
index 72b6b8153374..c5bc7f747755 100644
--- a/include/uapi/linux/scc.h
+++ b/include/uapi/linux/scc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* $Id: scc.h,v 1.29 1997/04/02 14:56:45 jreuter Exp jreuter $ */
 
 #ifndef _UAPI_SCC_H
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
index e2a6c7b3510b..30a9e51bbb1e 100644
--- a/include/uapi/linux/sched.h
+++ b/include/uapi/linux/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SCHED_H
 #define _UAPI_LINUX_SCHED_H
 
diff --git a/include/uapi/linux/sched/types.h b/include/uapi/linux/sched/types.h
index 34b81aa1a2f7..10fbb8031930 100644
--- a/include/uapi/linux/sched/types.h
+++ b/include/uapi/linux/sched/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SCHED_TYPES_H
 #define _UAPI_LINUX_SCHED_TYPES_H
 
diff --git a/include/uapi/linux/scif_ioctl.h b/include/uapi/linux/scif_ioctl.h
index d9048918be52..862a4cc908f7 100644
--- a/include/uapi/linux/scif_ioctl.h
+++ b/include/uapi/linux/scif_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Intel MIC Platform Software Stack (MPSS)
  *
diff --git a/include/uapi/linux/screen_info.h b/include/uapi/linux/screen_info.h
index 8b8d39dfb67f..87e5c086938e 100644
--- a/include/uapi/linux/screen_info.h
+++ b/include/uapi/linux/screen_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_SCREEN_INFO_H
 #define _UAPI_SCREEN_INFO_H
 
diff --git a/include/uapi/linux/sctp.h b/include/uapi/linux/sctp.h
index 6217ff8500a1..cfe971296835 100644
--- a/include/uapi/linux/sctp.h
+++ b/include/uapi/linux/sctp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* SCTP kernel implementation
  * (C) Copyright IBM Corp. 2001, 2004
  * Copyright (c) 1999-2000 Cisco, Inc.
@@ -376,7 +377,7 @@ struct sctp_remote_error {
 	__u16 sre_type;
 	__u16 sre_flags;
 	__u32 sre_length;
-	__u16 sre_error;
+	__be16 sre_error;
 	sctp_assoc_t sre_assoc_id;
 	__u8 sre_data[0];
 };
diff --git a/include/uapi/linux/sdla.h b/include/uapi/linux/sdla.h
index 95eaff9c9e49..1e3735be6511 100644
--- a/include/uapi/linux/sdla.h
+++ b/include/uapi/linux/sdla.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/seccomp.h b/include/uapi/linux/seccomp.h
index 0f238a43ff1e..2a0bd9dd104d 100644
--- a/include/uapi/linux/seccomp.h
+++ b/include/uapi/linux/seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SECCOMP_H
 #define _UAPI_LINUX_SECCOMP_H
 
@@ -11,27 +12,34 @@
 #define SECCOMP_MODE_FILTER	2 /* uses user-supplied filter. */
 
 /* Valid operations for seccomp syscall. */
-#define SECCOMP_SET_MODE_STRICT	0
-#define SECCOMP_SET_MODE_FILTER	1
+#define SECCOMP_SET_MODE_STRICT		0
+#define SECCOMP_SET_MODE_FILTER		1
+#define SECCOMP_GET_ACTION_AVAIL	2
 
 /* Valid flags for SECCOMP_SET_MODE_FILTER */
 #define SECCOMP_FILTER_FLAG_TSYNC	1
+#define SECCOMP_FILTER_FLAG_LOG		2
 
 /*
  * All BPF programs must return a 32-bit value.
  * The bottom 16-bits are for optional return data.
- * The upper 16-bits are ordered from least permissive values to most.
+ * The upper 16-bits are ordered from least permissive values to most,
+ * as a signed value (so 0x8000000 is negative).
  *
  * The ordering ensures that a min_t() over composed return values always
  * selects the least permissive choice.
  */
-#define SECCOMP_RET_KILL	0x00000000U /* kill the task immediately */
-#define SECCOMP_RET_TRAP	0x00030000U /* disallow and force a SIGSYS */
-#define SECCOMP_RET_ERRNO	0x00050000U /* returns an errno */
-#define SECCOMP_RET_TRACE	0x7ff00000U /* pass to a tracer or disallow */
-#define SECCOMP_RET_ALLOW	0x7fff0000U /* allow */
+#define SECCOMP_RET_KILL_PROCESS 0x80000000U /* kill the process */
+#define SECCOMP_RET_KILL_THREAD	 0x00000000U /* kill the thread */
+#define SECCOMP_RET_KILL	 SECCOMP_RET_KILL_THREAD
+#define SECCOMP_RET_TRAP	 0x00030000U /* disallow and force a SIGSYS */
+#define SECCOMP_RET_ERRNO	 0x00050000U /* returns an errno */
+#define SECCOMP_RET_TRACE	 0x7ff00000U /* pass to a tracer or disallow */
+#define SECCOMP_RET_LOG		 0x7ffc0000U /* allow after logging */
+#define SECCOMP_RET_ALLOW	 0x7fff0000U /* allow */
 
 /* Masks for the return value sections. */
+#define SECCOMP_RET_ACTION_FULL	0xffff0000U
 #define SECCOMP_RET_ACTION	0x7fff0000U
 #define SECCOMP_RET_DATA	0x0000ffffU
 
diff --git a/include/uapi/linux/securebits.h b/include/uapi/linux/securebits.h
index 35ac35cef217..d6d98877ff1a 100644
--- a/include/uapi/linux/securebits.h
+++ b/include/uapi/linux/securebits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SECUREBITS_H
 #define _UAPI_LINUX_SECUREBITS_H
 
diff --git a/include/uapi/linux/sed-opal.h b/include/uapi/linux/sed-opal.h
index c72e0735532d..627624d35030 100644
--- a/include/uapi/linux/sed-opal.h
+++ b/include/uapi/linux/sed-opal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright © 2016 Intel Corporation
  *
diff --git a/include/uapi/linux/seg6.h b/include/uapi/linux/seg6.h
index 7278511d339e..2f6fb0dd613c 100644
--- a/include/uapi/linux/seg6.h
+++ b/include/uapi/linux/seg6.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  SR-IPv6 implementation
  *
diff --git a/include/uapi/linux/seg6_genl.h b/include/uapi/linux/seg6_genl.h
index fcf1c60d7df3..d995d48daebb 100644
--- a/include/uapi/linux/seg6_genl.h
+++ b/include/uapi/linux/seg6_genl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SEG6_GENL_H
 #define _UAPI_LINUX_SEG6_GENL_H
 
diff --git a/include/uapi/linux/seg6_hmac.h b/include/uapi/linux/seg6_hmac.h
index e691c753fc3f..b877c782158a 100644
--- a/include/uapi/linux/seg6_hmac.h
+++ b/include/uapi/linux/seg6_hmac.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SEG6_HMAC_H
 #define _UAPI_LINUX_SEG6_HMAC_H
 
diff --git a/include/uapi/linux/seg6_iptunnel.h b/include/uapi/linux/seg6_iptunnel.h
index b23df9f58354..09fb608a35ec 100644
--- a/include/uapi/linux/seg6_iptunnel.h
+++ b/include/uapi/linux/seg6_iptunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  SR-IPv6 implementation
  *
diff --git a/include/uapi/linux/selinux_netlink.h b/include/uapi/linux/selinux_netlink.h
index d239797785cf..2fc0542171cd 100644
--- a/include/uapi/linux/selinux_netlink.h
+++ b/include/uapi/linux/selinux_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Netlink event notifications for SELinux.
  *
diff --git a/include/uapi/linux/sem.h b/include/uapi/linux/sem.h
index 67eb90361692..9c3e745b0656 100644
--- a/include/uapi/linux/sem.h
+++ b/include/uapi/linux/sem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SEM_H
 #define _UAPI_LINUX_SEM_H
 
diff --git a/include/uapi/linux/serial.h b/include/uapi/linux/serial.h
index d2667ecd54ac..3fdd0dee8b41 100644
--- a/include/uapi/linux/serial.h
+++ b/include/uapi/linux/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * include/linux/serial.h
  *
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 50d71c436323..1c8413f93e3d 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  linux/drivers/char/serial_core.h
  *
diff --git a/include/uapi/linux/serial_reg.h b/include/uapi/linux/serial_reg.h
index 5db76880b4ad..be07b5470f4b 100644
--- a/include/uapi/linux/serial_reg.h
+++ b/include/uapi/linux/serial_reg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * include/linux/serial_reg.h
  *
@@ -157,6 +158,7 @@
  */
 #define UART_DLL	0	/* Out: Divisor Latch Low */
 #define UART_DLM	1	/* Out: Divisor Latch High */
+#define UART_DIV_MAX	0xFFFF	/* Max divisor value */
 
 /*
  * LCR=0xBF (or DLAB=1 for 16C660)
diff --git a/include/uapi/linux/serio.h b/include/uapi/linux/serio.h
index ac217c6f0151..a0cac1d8670d 100644
--- a/include/uapi/linux/serio.h
+++ b/include/uapi/linux/serio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 1999-2002 Vojtech Pavlik
 *
diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h
index cf23c873719d..4de12a39b075 100644
--- a/include/uapi/linux/shm.h
+++ b/include/uapi/linux/shm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SHM_H_
 #define _UAPI_LINUX_SHM_H_
 
diff --git a/include/uapi/linux/signal.h b/include/uapi/linux/signal.h
index cd0804b6bfa2..e03238f8d478 100644
--- a/include/uapi/linux/signal.h
+++ b/include/uapi/linux/signal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SIGNAL_H
 #define _UAPI_LINUX_SIGNAL_H
 
diff --git a/include/uapi/linux/signalfd.h b/include/uapi/linux/signalfd.h
index 492c6def340d..6f0da42fc5ef 100644
--- a/include/uapi/linux/signalfd.h
+++ b/include/uapi/linux/signalfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  include/linux/signalfd.h
  *
diff --git a/include/uapi/linux/smc.h b/include/uapi/linux/smc.h
index ab1dea8e53ee..0e11ca421ca4 100644
--- a/include/uapi/linux/smc.h
+++ b/include/uapi/linux/smc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/include/uapi/linux/smc_diag.h b/include/uapi/linux/smc_diag.h
index 87712bfaa9dd..0ae5d4685ba3 100644
--- a/include/uapi/linux/smc_diag.h
+++ b/include/uapi/linux/smc_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_SMC_DIAG_H_
 #define _UAPI_SMC_DIAG_H_
 
diff --git a/include/uapi/linux/smiapp.h b/include/uapi/linux/smiapp.h
index 53938f4412ee..50438f8d9647 100644
--- a/include/uapi/linux/smiapp.h
+++ b/include/uapi/linux/smiapp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * include/uapi/linux/smiapp.h
  *
diff --git a/include/uapi/linux/snmp.h b/include/uapi/linux/snmp.h
index 758f12b58541..0d941cdd8e8c 100644
--- a/include/uapi/linux/snmp.h
+++ b/include/uapi/linux/snmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for MIBs
  *
diff --git a/include/uapi/linux/sock_diag.h b/include/uapi/linux/sock_diag.h
index 7ff505d8a47b..e5925009a652 100644
--- a/include/uapi/linux/sock_diag.h
+++ b/include/uapi/linux/sock_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SOCK_DIAG_H__
 #define _UAPI__SOCK_DIAG_H__
 
diff --git a/include/uapi/linux/socket.h b/include/uapi/linux/socket.h
index 76ab0c68561e..8eb96021709c 100644
--- a/include/uapi/linux/socket.h
+++ b/include/uapi/linux/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SOCKET_H
 #define _UAPI_LINUX_SOCKET_H
 
diff --git a/include/uapi/linux/sockios.h b/include/uapi/linux/sockios.h
index 79d029d25310..d393e9ed3964 100644
--- a/include/uapi/linux/sockios.h
+++ b/include/uapi/linux/sockios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/sonet.h b/include/uapi/linux/sonet.h
index cc54acee81ba..9d02357c6c6f 100644
--- a/include/uapi/linux/sonet.h
+++ b/include/uapi/linux/sonet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* sonet.h - SONET/SHD physical layer control */
  
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/include/uapi/linux/sonypi.h b/include/uapi/linux/sonypi.h
index 85078a283573..88f122451776 100644
--- a/include/uapi/linux/sonypi.h
+++ b/include/uapi/linux/sonypi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Sony Programmable I/O Control Device driver for VAIO
  *
diff --git a/include/uapi/linux/sound.h b/include/uapi/linux/sound.h
index 014c9117c224..a62d74042f47 100644
--- a/include/uapi/linux/sound.h
+++ b/include/uapi/linux/sound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SOUND_H
 #define _UAPI_LINUX_SOUND_H
 
diff --git a/include/uapi/linux/spi/spidev.h b/include/uapi/linux/spi/spidev.h
index dd5f21e75805..c4253f0090d8 100644
--- a/include/uapi/linux/spi/spidev.h
+++ b/include/uapi/linux/spi/spidev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * include/linux/spi/spidev.h
  *
@@ -23,6 +24,7 @@
 #define SPIDEV_H
 
 #include <linux/types.h>
+#include <linux/ioctl.h>
 
 /* User space versions of kernel symbols for SPI clocking modes,
  * matching <linux/spi/spi.h>
diff --git a/include/uapi/linux/stat.h b/include/uapi/linux/stat.h
index 17b10304c393..7b35e98d3c58 100644
--- a/include/uapi/linux/stat.h
+++ b/include/uapi/linux/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_STAT_H
 #define _UAPI_LINUX_STAT_H
 
diff --git a/include/uapi/linux/stddef.h b/include/uapi/linux/stddef.h
index 621fa8ac4425..ee8220f8dcf5 100644
--- a/include/uapi/linux/stddef.h
+++ b/include/uapi/linux/stddef.h
@@ -1,4 +1,5 @@
-#include <linux/compiler.h>
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#include <linux/compiler_types.h>
 
 #ifndef __always_inline
 #define __always_inline inline
diff --git a/include/uapi/linux/stm.h b/include/uapi/linux/stm.h
index 626a8d3f63b5..dbffdc23d804 100644
--- a/include/uapi/linux/stm.h
+++ b/include/uapi/linux/stm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * System Trace Module (STM) userspace interfaces
  * Copyright (c) 2014, Intel Corporation.
diff --git a/include/uapi/linux/string.h b/include/uapi/linux/string.h
index e32e545cff5a..9d129c13fe9d 100644
--- a/include/uapi/linux/string.h
+++ b/include/uapi/linux/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_STRING_H_
 #define _UAPI_LINUX_STRING_H_
 
diff --git a/include/uapi/linux/sunrpc/debug.h b/include/uapi/linux/sunrpc/debug.h
index 830e34493a8c..ae54af3d3fd6 100644
--- a/include/uapi/linux/sunrpc/debug.h
+++ b/include/uapi/linux/sunrpc/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * linux/include/linux/sunrpc/debug.h
  *
diff --git a/include/uapi/linux/suspend_ioctls.h b/include/uapi/linux/suspend_ioctls.h
index 0b30382984fe..bcce04e21c0d 100644
--- a/include/uapi/linux/suspend_ioctls.h
+++ b/include/uapi/linux/suspend_ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_SUSPEND_IOCTLS_H
 #define _LINUX_SUSPEND_IOCTLS_H
 
diff --git a/include/uapi/linux/swab.h b/include/uapi/linux/swab.h
index 8f3a8f606fd9..23cd84868cc3 100644
--- a/include/uapi/linux/swab.h
+++ b/include/uapi/linux/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SWAB_H
 #define _UAPI_LINUX_SWAB_H
 
diff --git a/include/uapi/linux/switchtec_ioctl.h b/include/uapi/linux/switchtec_ioctl.h
index 5e392968bad2..75df44373034 100644
--- a/include/uapi/linux/switchtec_ioctl.h
+++ b/include/uapi/linux/switchtec_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Microsemi Switchtec PCIe Driver
  * Copyright (c) 2017, Microsemi Corporation
diff --git a/include/uapi/linux/sync_file.h b/include/uapi/linux/sync_file.h
index 5b287d6970b3..ee2dcfb3d660 100644
--- a/include/uapi/linux/sync_file.h
+++ b/include/uapi/linux/sync_file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 Google, Inc.
  *
diff --git a/include/uapi/linux/synclink.h b/include/uapi/linux/synclink.h
index 7dcb065a5f76..62f32d4e1021 100644
--- a/include/uapi/linux/synclink.h
+++ b/include/uapi/linux/synclink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-1.0+ WITH Linux-syscall-note */
 /*
  * SyncLink Multiprotocol Serial Adapter Driver
  *
diff --git a/include/uapi/linux/sysctl.h b/include/uapi/linux/sysctl.h
index e13d48058b8d..0f272818a4d2 100644
--- a/include/uapi/linux/sysctl.h
+++ b/include/uapi/linux/sysctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * sysctl.h: General linux system control interface
  *
diff --git a/include/uapi/linux/sysinfo.h b/include/uapi/linux/sysinfo.h
index 934335a22522..435d5c23f0c0 100644
--- a/include/uapi/linux/sysinfo.h
+++ b/include/uapi/linux/sysinfo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_SYSINFO_H
 #define _LINUX_SYSINFO_H
 
diff --git a/include/uapi/linux/target_core_user.h b/include/uapi/linux/target_core_user.h
index 24a1c4ec2248..0be80f72646b 100644
--- a/include/uapi/linux/target_core_user.h
+++ b/include/uapi/linux/target_core_user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __TARGET_CORE_USER_H
 #define __TARGET_CORE_USER_H
 
diff --git a/include/uapi/linux/taskstats.h b/include/uapi/linux/taskstats.h
index 2466e550a41d..b7aa7bb2349f 100644
--- a/include/uapi/linux/taskstats.h
+++ b/include/uapi/linux/taskstats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1 WITH Linux-syscall-note */
 /* taskstats.h - exporting per-task statistics
  *
  * Copyright (C) Shailabh Nagar, IBM Corp. 2006
diff --git a/include/uapi/linux/tc_act/tc_bpf.h b/include/uapi/linux/tc_act/tc_bpf.h
index 8dc2ac05eecf..6e89a5df49a4 100644
--- a/include/uapi/linux/tc_act/tc_bpf.h
+++ b/include/uapi/linux/tc_act/tc_bpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2015 Jiri Pirko <jiri@resnulli.us>
  *
diff --git a/include/uapi/linux/tc_act/tc_connmark.h b/include/uapi/linux/tc_act/tc_connmark.h
index 62a5e944c554..80caa47b1933 100644
--- a/include/uapi/linux/tc_act/tc_connmark.h
+++ b/include/uapi/linux/tc_act/tc_connmark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_TC_CONNMARK_H
 #define __UAPI_TC_CONNMARK_H
 
diff --git a/include/uapi/linux/tc_act/tc_csum.h b/include/uapi/linux/tc_act/tc_csum.h
index a11bb355dbfb..0ecf4d29e2f3 100644
--- a/include/uapi/linux/tc_act/tc_csum.h
+++ b/include/uapi/linux/tc_act/tc_csum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_CSUM_H
 #define __LINUX_TC_CSUM_H
 
diff --git a/include/uapi/linux/tc_act/tc_defact.h b/include/uapi/linux/tc_act/tc_defact.h
index d2a3abb77aeb..e3ecd8bf37de 100644
--- a/include/uapi/linux/tc_act/tc_defact.h
+++ b/include/uapi/linux/tc_act/tc_defact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_DEF_H
 #define __LINUX_TC_DEF_H
 
diff --git a/include/uapi/linux/tc_act/tc_gact.h b/include/uapi/linux/tc_act/tc_gact.h
index 70b536a8f8b2..94273c3b81b0 100644
--- a/include/uapi/linux/tc_act/tc_gact.h
+++ b/include/uapi/linux/tc_act/tc_gact.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_GACT_H
 #define __LINUX_TC_GACT_H
 
diff --git a/include/uapi/linux/tc_act/tc_ife.h b/include/uapi/linux/tc_act/tc_ife.h
index 7c2817866c97..2f48490ef386 100644
--- a/include/uapi/linux/tc_act/tc_ife.h
+++ b/include/uapi/linux/tc_act/tc_ife.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UAPI_TC_IFE_H
 #define __UAPI_TC_IFE_H
 
diff --git a/include/uapi/linux/tc_act/tc_ipt.h b/include/uapi/linux/tc_act/tc_ipt.h
index 7c6e155dd981..b743c8bddd13 100644
--- a/include/uapi/linux/tc_act/tc_ipt.h
+++ b/include/uapi/linux/tc_act/tc_ipt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_IPT_H
 #define __LINUX_TC_IPT_H
 
diff --git a/include/uapi/linux/tc_act/tc_mirred.h b/include/uapi/linux/tc_act/tc_mirred.h
index 3d7a2b352a62..020696e07345 100644
--- a/include/uapi/linux/tc_act/tc_mirred.h
+++ b/include/uapi/linux/tc_act/tc_mirred.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_MIR_H
 #define __LINUX_TC_MIR_H
 
diff --git a/include/uapi/linux/tc_act/tc_nat.h b/include/uapi/linux/tc_act/tc_nat.h
index 923457c9ebf0..086be842587b 100644
--- a/include/uapi/linux/tc_act/tc_nat.h
+++ b/include/uapi/linux/tc_act/tc_nat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_NAT_H
 #define __LINUX_TC_NAT_H
 
diff --git a/include/uapi/linux/tc_act/tc_pedit.h b/include/uapi/linux/tc_act/tc_pedit.h
index 143d2b31a316..162d1094c41c 100644
--- a/include/uapi/linux/tc_act/tc_pedit.h
+++ b/include/uapi/linux/tc_act/tc_pedit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_PED_H
 #define __LINUX_TC_PED_H
 
diff --git a/include/uapi/linux/tc_act/tc_sample.h b/include/uapi/linux/tc_act/tc_sample.h
index edc9058bb30d..bd7e9f03abd2 100644
--- a/include/uapi/linux/tc_act/tc_sample.h
+++ b/include/uapi/linux/tc_act/tc_sample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_SAMPLE_H
 #define __LINUX_TC_SAMPLE_H
 
diff --git a/include/uapi/linux/tc_act/tc_skbedit.h b/include/uapi/linux/tc_act/tc_skbedit.h
index 2884425738ce..fbcfe27a4e6c 100644
--- a/include/uapi/linux/tc_act/tc_skbedit.h
+++ b/include/uapi/linux/tc_act/tc_skbedit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2008, Intel Corporation.
  *
diff --git a/include/uapi/linux/tc_act/tc_skbmod.h b/include/uapi/linux/tc_act/tc_skbmod.h
index 10fc07da6c69..38c072f66f2f 100644
--- a/include/uapi/linux/tc_act/tc_skbmod.h
+++ b/include/uapi/linux/tc_act/tc_skbmod.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2016, Jamal Hadi Salim
  *
diff --git a/include/uapi/linux/tc_act/tc_tunnel_key.h b/include/uapi/linux/tc_act/tc_tunnel_key.h
index afcd4be953e2..72bbefe5d1d1 100644
--- a/include/uapi/linux/tc_act/tc_tunnel_key.h
+++ b/include/uapi/linux/tc_act/tc_tunnel_key.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2016, Amir Vadai <amir@vadai.me>
  * Copyright (c) 2016, Mellanox Technologies. All rights reserved.
diff --git a/include/uapi/linux/tc_act/tc_vlan.h b/include/uapi/linux/tc_act/tc_vlan.h
index bddb272b843f..0d7b5fd6605b 100644
--- a/include/uapi/linux/tc_act/tc_vlan.h
+++ b/include/uapi/linux/tc_act/tc_vlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (c) 2014 Jiri Pirko <jiri@resnulli.us>
  *
diff --git a/include/uapi/linux/tc_ematch/tc_em_cmp.h b/include/uapi/linux/tc_ematch/tc_em_cmp.h
index f34bb1bae083..2549d9d6e031 100644
--- a/include/uapi/linux/tc_ematch/tc_em_cmp.h
+++ b/include/uapi/linux/tc_ematch/tc_em_cmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_EM_CMP_H
 #define __LINUX_TC_EM_CMP_H
 
diff --git a/include/uapi/linux/tc_ematch/tc_em_meta.h b/include/uapi/linux/tc_ematch/tc_em_meta.h
index b11f8ce2d3c0..cf30b5bc4eaf 100644
--- a/include/uapi/linux/tc_ematch/tc_em_meta.h
+++ b/include/uapi/linux/tc_ematch/tc_em_meta.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_EM_META_H
 #define __LINUX_TC_EM_META_H
 
diff --git a/include/uapi/linux/tc_ematch/tc_em_nbyte.h b/include/uapi/linux/tc_ematch/tc_em_nbyte.h
index 7172cfb999c1..c76333f7f6f2 100644
--- a/include/uapi/linux/tc_ematch/tc_em_nbyte.h
+++ b/include/uapi/linux/tc_ematch/tc_em_nbyte.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_EM_NBYTE_H
 #define __LINUX_TC_EM_NBYTE_H
 
diff --git a/include/uapi/linux/tc_ematch/tc_em_text.h b/include/uapi/linux/tc_ematch/tc_em_text.h
index 5aac4045ba88..b0a92257964e 100644
--- a/include/uapi/linux/tc_ematch/tc_em_text.h
+++ b/include/uapi/linux/tc_ematch/tc_em_text.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_TC_EM_TEXT_H
 #define __LINUX_TC_EM_TEXT_H
 
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h
index 15c25eccab2b..6a64beeecfad 100644
--- a/include/uapi/linux/tcp.h
+++ b/include/uapi/linux/tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/tcp_metrics.h b/include/uapi/linux/tcp_metrics.h
index 80ad90d0cfc2..7cb4a172feed 100644
--- a/include/uapi/linux/tcp_metrics.h
+++ b/include/uapi/linux/tcp_metrics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* tcp_metrics.h - TCP Metrics Interface */
 
 #ifndef _LINUX_TCP_METRICS_H
diff --git a/include/uapi/linux/telephony.h b/include/uapi/linux/telephony.h
index f63afe330add..d2c9f7105f4b 100644
--- a/include/uapi/linux/telephony.h
+++ b/include/uapi/linux/telephony.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /******************************************************************************
  *
  *		telephony.h
diff --git a/include/uapi/linux/termios.h b/include/uapi/linux/termios.h
index 2acd0c1f8a2a..33961d4e4de0 100644
--- a/include/uapi/linux/termios.h
+++ b/include/uapi/linux/termios.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_TERMIOS_H
 #define _LINUX_TERMIOS_H
 
diff --git a/include/uapi/linux/thermal.h b/include/uapi/linux/thermal.h
index ac5535855982..96218378dda8 100644
--- a/include/uapi/linux/thermal.h
+++ b/include/uapi/linux/thermal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_THERMAL_H
 #define _UAPI_LINUX_THERMAL_H
 
diff --git a/include/uapi/linux/time.h b/include/uapi/linux/time.h
index 09299fcb842a..53f8dd84beb5 100644
--- a/include/uapi/linux/time.h
+++ b/include/uapi/linux/time.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_TIME_H
 #define _UAPI_LINUX_TIME_H
 
diff --git a/include/uapi/linux/timerfd.h b/include/uapi/linux/timerfd.h
index 6fcfaa8da173..dd469944db02 100644
--- a/include/uapi/linux/timerfd.h
+++ b/include/uapi/linux/timerfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  include/linux/timerfd.h
  *
diff --git a/include/uapi/linux/times.h b/include/uapi/linux/times.h
index 87b62615cedd..9c72df662f5f 100644
--- a/include/uapi/linux/times.h
+++ b/include/uapi/linux/times.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_TIMES_H
 #define _LINUX_TIMES_H
 
diff --git a/include/uapi/linux/tiocl.h b/include/uapi/linux/tiocl.h
index 4756862c4ed4..b32acc229024 100644
--- a/include/uapi/linux/tiocl.h
+++ b/include/uapi/linux/tiocl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_TIOCL_H
 #define _LINUX_TIOCL_H
 
diff --git a/include/uapi/linux/tipc.h b/include/uapi/linux/tipc.h
index 5351b08c897a..77123614e973 100644
--- a/include/uapi/linux/tipc.h
+++ b/include/uapi/linux/tipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * include/uapi/linux/tipc.h: Header for TIPC socket interface
  *
diff --git a/include/uapi/linux/tipc_config.h b/include/uapi/linux/tipc_config.h
index 087b0ef82c07..3f29e3c8ed06 100644
--- a/include/uapi/linux/tipc_config.h
+++ b/include/uapi/linux/tipc_config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * include/uapi/linux/tipc_config.h: Header for TIPC configuration interface
  *
diff --git a/include/uapi/linux/tipc_netlink.h b/include/uapi/linux/tipc_netlink.h
index f9edd20fe9ba..469aa67a5ecb 100644
--- a/include/uapi/linux/tipc_netlink.h
+++ b/include/uapi/linux/tipc_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * Copyright (c) 2014, Ericsson AB
  * All rights reserved.
diff --git a/include/uapi/linux/tls.h b/include/uapi/linux/tls.h
index cc1d21db35d8..d5e0682ab837 100644
--- a/include/uapi/linux/tls.h
+++ b/include/uapi/linux/tls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2016-2017, Mellanox Technologies. All rights reserved.
  *
diff --git a/include/uapi/linux/toshiba.h b/include/uapi/linux/toshiba.h
index c58bf4b5bb26..7f1941935f98 100644
--- a/include/uapi/linux/toshiba.h
+++ b/include/uapi/linux/toshiba.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /* toshiba.h -- Linux driver for accessing the SMM on Toshiba laptops 
  *
  * Copyright (c) 1996-2000  Jonathan A. Buzzard (jonathan@buzzard.org.uk)
diff --git a/include/uapi/linux/tty.h b/include/uapi/linux/tty.h
index cf1455396df0..376cccf397be 100644
--- a/include/uapi/linux/tty.h
+++ b/include/uapi/linux/tty.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_TTY_H
 #define _UAPI_LINUX_TTY_H
 
diff --git a/include/uapi/linux/tty_flags.h b/include/uapi/linux/tty_flags.h
index 66e4d8bcb16f..6ac609a00dea 100644
--- a/include/uapi/linux/tty_flags.h
+++ b/include/uapi/linux/tty_flags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_TTY_FLAGS_H
 #define _LINUX_TTY_FLAGS_H
 
diff --git a/include/uapi/linux/types.h b/include/uapi/linux/types.h
index 41e5914f0a8e..e3d1d0c78f3c 100644
--- a/include/uapi/linux/types.h
+++ b/include/uapi/linux/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_TYPES_H
 #define _UAPI_LINUX_TYPES_H
 
diff --git a/include/uapi/linux/udf_fs_i.h b/include/uapi/linux/udf_fs_i.h
index 3536965913b0..c50863080399 100644
--- a/include/uapi/linux/udf_fs_i.h
+++ b/include/uapi/linux/udf_fs_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * udf_fs_i.h
  *
diff --git a/include/uapi/linux/udp.h b/include/uapi/linux/udp.h
index 2c8180f9156f..efb7b5991c2f 100644
--- a/include/uapi/linux/udp.h
+++ b/include/uapi/linux/udp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/include/uapi/linux/uhid.h b/include/uapi/linux/uhid.h
index aaa86d6bd1dd..cef7534d2d19 100644
--- a/include/uapi/linux/uhid.h
+++ b/include/uapi/linux/uhid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __UHID_H_
 #define __UHID_H_
 
diff --git a/include/uapi/linux/uinput.h b/include/uapi/linux/uinput.h
index dc652e224b67..c9e677e3af1d 100644
--- a/include/uapi/linux/uinput.h
+++ b/include/uapi/linux/uinput.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  User level driver support for input subsystem
  *
diff --git a/include/uapi/linux/uio.h b/include/uapi/linux/uio.h
index 2731d56a5484..059b1a9147f4 100644
--- a/include/uapi/linux/uio.h
+++ b/include/uapi/linux/uio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *	Berkeley style UIO structures	-	Alan Cox 1994.
  *
diff --git a/include/uapi/linux/uleds.h b/include/uapi/linux/uleds.h
index 95186578c46e..4d32a39965f8 100644
--- a/include/uapi/linux/uleds.h
+++ b/include/uapi/linux/uleds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Userspace driver support for the LED subsystem
  *
diff --git a/include/uapi/linux/ultrasound.h b/include/uapi/linux/ultrasound.h
index 71339dc531c5..73305bd1dc5a 100644
--- a/include/uapi/linux/ultrasound.h
+++ b/include/uapi/linux/ultrasound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ULTRASOUND_H_
 #define _ULTRASOUND_H_
 /*
diff --git a/include/uapi/linux/un.h b/include/uapi/linux/un.h
index 4f0ab3a548ad..0ad59dc8b686 100644
--- a/include/uapi/linux/un.h
+++ b/include/uapi/linux/un.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_UN_H
 #define _LINUX_UN_H
 
diff --git a/include/uapi/linux/unistd.h b/include/uapi/linux/unistd.h
index aa8d5b5e2e3e..a92361f5d32d 100644
--- a/include/uapi/linux/unistd.h
+++ b/include/uapi/linux/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_UNISTD_H_
 #define _LINUX_UNISTD_H_
 
diff --git a/include/uapi/linux/unix_diag.h b/include/uapi/linux/unix_diag.h
index 1eb0b8dd1830..5c502fdf7a42 100644
--- a/include/uapi/linux/unix_diag.h
+++ b/include/uapi/linux/unix_diag.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __UNIX_DIAG_H__
 #define __UNIX_DIAG_H__
 
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index a4680a5bf5dd..17a022c5b414 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * <linux/usb/audio.h> -- USB Audio definitions.
  *
diff --git a/include/uapi/linux/usb/cdc-wdm.h b/include/uapi/linux/usb/cdc-wdm.h
index 0dc132e75030..a927c7f6f68a 100644
--- a/include/uapi/linux/usb/cdc-wdm.h
+++ b/include/uapi/linux/usb/cdc-wdm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * USB CDC Device Management userspace API definitions
  *
diff --git a/include/uapi/linux/usb/cdc.h b/include/uapi/linux/usb/cdc.h
index e2bc417b243b..6d61550959ef 100644
--- a/include/uapi/linux/usb/cdc.h
+++ b/include/uapi/linux/usb/cdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * USB Communications Device Class (CDC) definitions
  *
diff --git a/include/uapi/linux/usb/ch11.h b/include/uapi/linux/usb/ch11.h
index 576c704e3fb8..29c120c88747 100644
--- a/include/uapi/linux/usb/ch11.h
+++ b/include/uapi/linux/usb/ch11.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file holds Hub protocol constants and data structures that are
  * defined in chapter 11 (Hub Specification) of the USB 2.0 specification.
diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index ce1169af39d7..41a0a81b01e6 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file holds USB constants and structures that are needed for
  * USB device APIs.  These are used by the USB device model, which is
@@ -143,6 +144,10 @@
 #define	TEST_PACKET	4
 #define	TEST_FORCE_EN	5
 
+/* Status Type */
+#define USB_STATUS_TYPE_STANDARD	0
+#define USB_STATUS_TYPE_PTM		1
+
 /*
  * New Feature Selectors as added by USB 3.0
  * See USB 3.0 spec Table 9-7
@@ -780,6 +785,7 @@ struct usb_interface_assoc_descriptor {
 	__u8  iFunction;
 } __attribute__ ((packed));
 
+#define USB_DT_INTERFACE_ASSOCIATION_SIZE	8
 
 /*-------------------------------------------------------------------------*/
 
diff --git a/include/uapi/linux/usb/functionfs.h b/include/uapi/linux/usb/functionfs.h
index f913d08ab7bb..d77ee6b65328 100644
--- a/include/uapi/linux/usb/functionfs.h
+++ b/include/uapi/linux/usb/functionfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_FUNCTIONFS_H__
 #define _UAPI__LINUX_FUNCTIONFS_H__
 
diff --git a/include/uapi/linux/usb/g_printer.h b/include/uapi/linux/usb/g_printer.h
index 6178fde50f74..7fc20e4b82f5 100644
--- a/include/uapi/linux/usb/g_printer.h
+++ b/include/uapi/linux/usb/g_printer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * g_printer.h -- Header file for USB Printer gadget driver
  *
diff --git a/include/uapi/linux/usb/gadgetfs.h b/include/uapi/linux/usb/gadgetfs.h
index 0bb12e0d4f8f..835473910a49 100644
--- a/include/uapi/linux/usb/gadgetfs.h
+++ b/include/uapi/linux/usb/gadgetfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Filesystem based user-mode API to USB Gadget controller hardware
  *
diff --git a/include/uapi/linux/usb/midi.h b/include/uapi/linux/usb/midi.h
index c8c52e3c91de..de6941ef70ad 100644
--- a/include/uapi/linux/usb/midi.h
+++ b/include/uapi/linux/usb/midi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * <linux/usb/midi.h> -- USB MIDI definitions.
  *
diff --git a/include/uapi/linux/usb/tmc.h b/include/uapi/linux/usb/tmc.h
index 2e59d9c50b8d..03f6adc8f35b 100644
--- a/include/uapi/linux/usb/tmc.h
+++ b/include/uapi/linux/usb/tmc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007 Stefan Kopp, Gechingen, Germany
  * Copyright (C) 2008 Novell, Inc.
diff --git a/include/uapi/linux/usb/video.h b/include/uapi/linux/usb/video.h
index 69ab695fad2e..ff6cc6cb4227 100644
--- a/include/uapi/linux/usb/video.h
+++ b/include/uapi/linux/usb/video.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * USB Video Class definitions.
  *
diff --git a/include/uapi/linux/usbdevice_fs.h b/include/uapi/linux/usbdevice_fs.h
index 0bbfd4abd2e3..70ed5338d447 100644
--- a/include/uapi/linux/usbdevice_fs.h
+++ b/include/uapi/linux/usbdevice_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*****************************************************************************/
 
 /*
diff --git a/include/uapi/linux/usbip.h b/include/uapi/linux/usbip.h
index fa5db30ede36..fd393d908d8a 100644
--- a/include/uapi/linux/usbip.h
+++ b/include/uapi/linux/usbip.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	usbip.h
  *
diff --git a/include/uapi/linux/userfaultfd.h b/include/uapi/linux/userfaultfd.h
index d6d1f65cb3c3..48f1a7c2f1f0 100644
--- a/include/uapi/linux/userfaultfd.h
+++ b/include/uapi/linux/userfaultfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  include/linux/userfaultfd.h
  *
diff --git a/include/uapi/linux/userio.h b/include/uapi/linux/userio.h
index 37d147f0a13a..74c9951d2cd0 100644
--- a/include/uapi/linux/userio.h
+++ b/include/uapi/linux/userio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
 /*
  * userio: virtual serio device support
  * Copyright (C) 2015 Red Hat
diff --git a/include/uapi/linux/utime.h b/include/uapi/linux/utime.h
index 5cdf673afbdb..fd9aa26b6860 100644
--- a/include/uapi/linux/utime.h
+++ b/include/uapi/linux/utime.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_UTIME_H
 #define _LINUX_UTIME_H
 
diff --git a/include/uapi/linux/utsname.h b/include/uapi/linux/utsname.h
index 872c2df10de7..c99edc662536 100644
--- a/include/uapi/linux/utsname.h
+++ b/include/uapi/linux/utsname.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_UTSNAME_H
 #define _UAPI_LINUX_UTSNAME_H
 
diff --git a/include/uapi/linux/uuid.h b/include/uapi/linux/uuid.h
index 8ef82f433877..5c04130bb524 100644
--- a/include/uapi/linux/uuid.h
+++ b/include/uapi/linux/uuid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * UUID/GUID definition
  *
diff --git a/include/uapi/linux/uvcvideo.h b/include/uapi/linux/uvcvideo.h
index 3b081862b9e8..e80b4655d8cd 100644
--- a/include/uapi/linux/uvcvideo.h
+++ b/include/uapi/linux/uvcvideo.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_UVCVIDEO_H_
 #define __LINUX_UVCVIDEO_H_
 
diff --git a/include/uapi/linux/v4l2-common.h b/include/uapi/linux/v4l2-common.h
index 5b3f685a2d50..4f7b892377cd 100644
--- a/include/uapi/linux/v4l2-common.h
+++ b/include/uapi/linux/v4l2-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  * include/linux/v4l2-common.h
  *
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 31bfc68f86d6..a692623e0236 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  *  Video for Linux Two controls header file
  *
diff --git a/include/uapi/linux/v4l2-dv-timings.h b/include/uapi/linux/v4l2-dv-timings.h
index da2955154381..b52b67c62562 100644
--- a/include/uapi/linux/v4l2-dv-timings.h
+++ b/include/uapi/linux/v4l2-dv-timings.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * V4L2 DV timings header.
  *
diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index 9cac6325cc7e..6e20de63ec59 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Media Bus API header
  *
diff --git a/include/uapi/linux/v4l2-subdev.h b/include/uapi/linux/v4l2-subdev.h
index dbce2b554e02..c95a53e6743c 100644
--- a/include/uapi/linux/v4l2-subdev.h
+++ b/include/uapi/linux/v4l2-subdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * V4L2 subdev userspace API
  *
diff --git a/include/uapi/linux/veth.h b/include/uapi/linux/veth.h
index 3354c1eb424e..52b58e587e23 100644
--- a/include/uapi/linux/veth.h
+++ b/include/uapi/linux/veth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __NET_VETH_H_
 #define __NET_VETH_H_
 
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index ae461050661a..e3301dbd27d4 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * VFIO API definition
  *
diff --git a/include/uapi/linux/vfio_ccw.h b/include/uapi/linux/vfio_ccw.h
index 34a7f6f9e065..2ec5f367ff78 100644
--- a/include/uapi/linux/vfio_ccw.h
+++ b/include/uapi/linux/vfio_ccw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Interfaces for vfio-ccw
  *
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index 60180c0b5dc6..c51f8e5cc608 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_VHOST_H
 #define _LINUX_VHOST_H
 /* Userspace interface for in-kernel virtio accelerators. */
diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 185d6a0acc06..1c095b5a99c5 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  *  Video for Linux Two header file
  *
diff --git a/include/uapi/linux/vm_sockets.h b/include/uapi/linux/vm_sockets.h
index b4ed5d895699..68d57c5e99bc 100644
--- a/include/uapi/linux/vm_sockets.h
+++ b/include/uapi/linux/vm_sockets.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * VMware vSockets Driver
  *
diff --git a/include/uapi/linux/vsockmon.h b/include/uapi/linux/vsockmon.h
index a08b522ef597..4a03b893a957 100644
--- a/include/uapi/linux/vsockmon.h
+++ b/include/uapi/linux/vsockmon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_VSOCKMON_H
 #define _UAPI_VSOCKMON_H
 
diff --git a/include/uapi/linux/vt.h b/include/uapi/linux/vt.h
index f69034887e68..e9d39c48520a 100644
--- a/include/uapi/linux/vt.h
+++ b/include/uapi/linux/vt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_VT_H
 #define _UAPI_LINUX_VT_H
 
diff --git a/include/uapi/linux/vtpm_proxy.h b/include/uapi/linux/vtpm_proxy.h
index 58ac73cd38fe..31a30f33ac46 100644
--- a/include/uapi/linux/vtpm_proxy.h
+++ b/include/uapi/linux/vtpm_proxy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for the VTPM proxy driver
  * Copyright (c) 2015, 2016, IBM Corporation
diff --git a/include/uapi/linux/wait.h b/include/uapi/linux/wait.h
index 9393eead23e2..ac49a220cf2a 100644
--- a/include/uapi/linux/wait.h
+++ b/include/uapi/linux/wait.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_WAIT_H
 #define _UAPI_LINUX_WAIT_H
 
diff --git a/include/uapi/linux/wanrouter.h b/include/uapi/linux/wanrouter.h
index 498d6c12c666..2f1216d00caa 100644
--- a/include/uapi/linux/wanrouter.h
+++ b/include/uapi/linux/wanrouter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * wanrouter.h	Legacy declarations kept around until X25 is removed
  */
diff --git a/include/uapi/linux/watchdog.h b/include/uapi/linux/watchdog.h
index 2babe72870ba..b15cde5c9054 100644
--- a/include/uapi/linux/watchdog.h
+++ b/include/uapi/linux/watchdog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *	Generic watchdog defines. Derived from..
  *
diff --git a/include/uapi/linux/wireless.h b/include/uapi/linux/wireless.h
index d9ecd7c6d691..86eca3208b6b 100644
--- a/include/uapi/linux/wireless.h
+++ b/include/uapi/linux/wireless.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file define a set of standard wireless extensions
  *
diff --git a/include/uapi/linux/x25.h b/include/uapi/linux/x25.h
index 810cce6737ea..034b7dc5593a 100644
--- a/include/uapi/linux/x25.h
+++ b/include/uapi/linux/x25.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * These are the public elements of the Linux kernel X.25 implementation.
  *
diff --git a/include/uapi/linux/xattr.h b/include/uapi/linux/xattr.h
index 1590c49cae57..c1395b5bd432 100644
--- a/include/uapi/linux/xattr.h
+++ b/include/uapi/linux/xattr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
   File: linux/xattr.h
 
@@ -65,6 +66,9 @@
 #define XATTR_NAME_SMACKTRANSMUTE XATTR_SECURITY_PREFIX XATTR_SMACK_TRANSMUTE
 #define XATTR_NAME_SMACKMMAP XATTR_SECURITY_PREFIX XATTR_SMACK_MMAP
 
+#define XATTR_APPARMOR_SUFFIX "apparmor"
+#define XATTR_NAME_APPARMOR XATTR_SECURITY_PREFIX XATTR_APPARMOR_SUFFIX
+
 #define XATTR_CAPS_SUFFIX "capability"
 #define XATTR_NAME_CAPS XATTR_SECURITY_PREFIX XATTR_CAPS_SUFFIX
 
diff --git a/include/uapi/linux/xfrm.h b/include/uapi/linux/xfrm.h
index 5fe7370a2bef..e3af2859188b 100644
--- a/include/uapi/linux/xfrm.h
+++ b/include/uapi/linux/xfrm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_XFRM_H
 #define _LINUX_XFRM_H
 
diff --git a/include/uapi/linux/xilinx-v4l2-controls.h b/include/uapi/linux/xilinx-v4l2-controls.h
index fb495b91e800..b6441fe705c5 100644
--- a/include/uapi/linux/xilinx-v4l2-controls.h
+++ b/include/uapi/linux/xilinx-v4l2-controls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Xilinx Controls Header
  *
diff --git a/include/uapi/linux/zorro.h b/include/uapi/linux/zorro.h
index 59d021b242ed..9798d1864fd9 100644
--- a/include/uapi/linux/zorro.h
+++ b/include/uapi/linux/zorro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  linux/zorro.h -- Amiga AutoConfig (Zorro) Bus Definitions
  *
diff --git a/include/uapi/linux/zorro_ids.h b/include/uapi/linux/zorro_ids.h
index 74bc53bcfdcf..6e574d7b7d79 100644
--- a/include/uapi/linux/zorro_ids.h
+++ b/include/uapi/linux/zorro_ids.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  Zorro board IDs
  *
diff --git a/include/uapi/misc/cxl.h b/include/uapi/misc/cxl.h
index 180d526a55c3..49e8fd08855a 100644
--- a/include/uapi/misc/cxl.h
+++ b/include/uapi/misc/cxl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright 2014 IBM Corp.
  *
diff --git a/include/uapi/mtd/inftl-user.h b/include/uapi/mtd/inftl-user.h
index 8376bd1a9e01..8d5044e32e53 100644
--- a/include/uapi/mtd/inftl-user.h
+++ b/include/uapi/mtd/inftl-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Parts of INFTL headers shared with userspace
  *
diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 0ec1da2ef652..aff5b5e59845 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org> et al.
  *
diff --git a/include/uapi/mtd/mtd-user.h b/include/uapi/mtd/mtd-user.h
index e71d5558cc23..7eca1b3f6b43 100644
--- a/include/uapi/mtd/mtd-user.h
+++ b/include/uapi/mtd/mtd-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
  *
diff --git a/include/uapi/mtd/nftl-user.h b/include/uapi/mtd/nftl-user.h
index bdeabd86ad99..b23bdc91c9f1 100644
--- a/include/uapi/mtd/nftl-user.h
+++ b/include/uapi/mtd/nftl-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
  *
diff --git a/include/uapi/mtd/ubi-user.h b/include/uapi/mtd/ubi-user.h
index 1927b0d78a99..5b04a494d139 100644
--- a/include/uapi/mtd/ubi-user.h
+++ b/include/uapi/mtd/ubi-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright © International Business Machines Corp., 2006
  *
diff --git a/include/uapi/rdma/bnxt_re-abi.h b/include/uapi/rdma/bnxt_re-abi.h
index 74018bd18d72..398a514ee446 100644
--- a/include/uapi/rdma/bnxt_re-abi.h
+++ b/include/uapi/rdma/bnxt_re-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Broadcom NetXtreme-E RoCE driver.
  *
diff --git a/include/uapi/rdma/cxgb3-abi.h b/include/uapi/rdma/cxgb3-abi.h
index d24eee12128f..d5745e43ae85 100644
--- a/include/uapi/rdma/cxgb3-abi.h
+++ b/include/uapi/rdma/cxgb3-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
  *
diff --git a/include/uapi/rdma/cxgb4-abi.h b/include/uapi/rdma/cxgb4-abi.h
index 472b15990894..05f71f1bc119 100644
--- a/include/uapi/rdma/cxgb4-abi.h
+++ b/include/uapi/rdma/cxgb4-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2009-2010 Chelsio, Inc. All rights reserved.
  *
diff --git a/include/uapi/rdma/hfi/hfi1_ioctl.h b/include/uapi/rdma/hfi/hfi1_ioctl.h
index 4791cc8cb09b..9de78c5ee913 100644
--- a/include/uapi/rdma/hfi/hfi1_ioctl.h
+++ b/include/uapi/rdma/hfi/hfi1_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
diff --git a/include/uapi/rdma/hfi/hfi1_user.h b/include/uapi/rdma/hfi/hfi1_user.h
index 3f4ee93ae5eb..791bea2f8297 100644
--- a/include/uapi/rdma/hfi/hfi1_user.h
+++ b/include/uapi/rdma/hfi/hfi1_user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
 /*
  *
  * This file is provided under a dual BSD/GPLv2 license.  When using or
diff --git a/include/uapi/rdma/hns-abi.h b/include/uapi/rdma/hns-abi.h
index 5d7401963e35..a9c03b0eed57 100644
--- a/include/uapi/rdma/hns-abi.h
+++ b/include/uapi/rdma/hns-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2016 Hisilicon Limited.
  *
diff --git a/include/uapi/rdma/ib_user_cm.h b/include/uapi/rdma/ib_user_cm.h
index f79014aa28f9..f4041bdc4d08 100644
--- a/include/uapi/rdma/ib_user_cm.h
+++ b/include/uapi/rdma/ib_user_cm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
  * Copyright (c) 2005 Intel Corporation.  All rights reserved.
diff --git a/include/uapi/rdma/ib_user_mad.h b/include/uapi/rdma/ib_user_mad.h
index 5c7abd859e0f..330a3c5f1aa8 100644
--- a/include/uapi/rdma/ib_user_mad.h
+++ b/include/uapi/rdma/ib_user_mad.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2004 Topspin Communications.  All rights reserved.
  * Copyright (c) 2005 Voltaire, Inc. All rights reserved.
diff --git a/include/uapi/rdma/ib_user_sa.h b/include/uapi/rdma/ib_user_sa.h
index cfc7c9ba781e..0d2607f0cd20 100644
--- a/include/uapi/rdma/ib_user_sa.h
+++ b/include/uapi/rdma/ib_user_sa.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2005 Intel Corporation.  All rights reserved.
  *
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 9a0b6479fe0c..e0e83a105953 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
  * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
@@ -261,7 +262,7 @@ struct ib_uverbs_ex_query_device_resp {
 	struct ib_uverbs_rss_caps rss_caps;
 	__u32  max_wq_type_rq;
 	__u32 raw_packet_caps;
-	struct ib_uverbs_tm_caps xrq_caps;
+	struct ib_uverbs_tm_caps tm_caps;
 };
 
 struct ib_uverbs_query_port {
diff --git a/include/uapi/rdma/mlx4-abi.h b/include/uapi/rdma/mlx4-abi.h
index c55f60e05f86..224b52b6279c 100644
--- a/include/uapi/rdma/mlx4-abi.h
+++ b/include/uapi/rdma/mlx4-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2007 Cisco Systems, Inc. All rights reserved.
  * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved.
diff --git a/include/uapi/rdma/mlx5-abi.h b/include/uapi/rdma/mlx5-abi.h
index 1791bf123ba9..23dba2d40907 100644
--- a/include/uapi/rdma/mlx5-abi.h
+++ b/include/uapi/rdma/mlx5-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2013-2015, Mellanox Technologies. All rights reserved.
  *
diff --git a/include/uapi/rdma/mthca-abi.h b/include/uapi/rdma/mthca-abi.h
index bcbf4ff2f6d1..3020d8a907a7 100644
--- a/include/uapi/rdma/mthca-abi.h
+++ b/include/uapi/rdma/mthca-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
  * Copyright (c) 2005, 2006 Cisco Systems.  All rights reserved.
diff --git a/include/uapi/rdma/nes-abi.h b/include/uapi/rdma/nes-abi.h
index 6eb3734394a2..f5b2437aab28 100644
--- a/include/uapi/rdma/nes-abi.h
+++ b/include/uapi/rdma/nes-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2006 - 2011 Intel Corporation.  All rights reserved.
  * Copyright (c) 2005 Topspin Communications.  All rights reserved.
diff --git a/include/uapi/rdma/ocrdma-abi.h b/include/uapi/rdma/ocrdma-abi.h
index 9f28191bef4d..ad64a3cea1cd 100644
--- a/include/uapi/rdma/ocrdma-abi.h
+++ b/include/uapi/rdma/ocrdma-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /* This file is part of the Emulex RoCE Device Driver for
  * RoCE (RDMA over Converged Ethernet) adapters.
  * Copyright (C) 2012-2015 Emulex. All rights reserved.
diff --git a/include/uapi/rdma/qedr-abi.h b/include/uapi/rdma/qedr-abi.h
index 54b64357ab24..261c6db4623e 100644
--- a/include/uapi/rdma/qedr-abi.h
+++ b/include/uapi/rdma/qedr-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /* QLogic qedr NIC Driver
  * Copyright (c) 2015-2016  QLogic Corporation
  *
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index 861440a87e7c..cc002e316d09 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_RDMA_NETLINK_H
 #define _UAPI_RDMA_NETLINK_H
 
diff --git a/include/uapi/rdma/rdma_user_cm.h b/include/uapi/rdma/rdma_user_cm.h
index d71da36e3cd6..c83ef0026079 100644
--- a/include/uapi/rdma/rdma_user_cm.h
+++ b/include/uapi/rdma/rdma_user_cm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2005-2006 Intel Corporation.  All rights reserved.
  *
diff --git a/include/uapi/rdma/rdma_user_ioctl.h b/include/uapi/rdma/rdma_user_ioctl.h
index 165a27e969d5..03557b5f9aa6 100644
--- a/include/uapi/rdma/rdma_user_ioctl.h
+++ b/include/uapi/rdma/rdma_user_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2016 Mellanox Technologies, LTD. All rights reserved.
  *
diff --git a/include/uapi/rdma/rdma_user_rxe.h b/include/uapi/rdma/rdma_user_rxe.h
index 1de99cfdaf7d..bdeea948b2f3 100644
--- a/include/uapi/rdma/rdma_user_rxe.h
+++ b/include/uapi/rdma/rdma_user_rxe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
  *
diff --git a/include/uapi/rdma/vmw_pvrdma-abi.h b/include/uapi/rdma/vmw_pvrdma-abi.h
index c6569b0032ec..912ea1556a0b 100644
--- a/include/uapi/rdma/vmw_pvrdma-abi.h
+++ b/include/uapi/rdma/vmw_pvrdma-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
 /*
  * Copyright (c) 2012-2016 VMware, Inc.  All rights reserved.
  *
diff --git a/include/uapi/scsi/cxlflash_ioctl.h b/include/uapi/scsi/cxlflash_ioctl.h
index 48d107e75cf2..513da47aa5ab 100644
--- a/include/uapi/scsi/cxlflash_ioctl.h
+++ b/include/uapi/scsi/cxlflash_ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * CXL Flash Device Driver
  *
diff --git a/include/uapi/scsi/fc/fc_els.h b/include/uapi/scsi/fc/fc_els.h
index 481abbd48e39..b7e0a5ed40de 100644
--- a/include/uapi/scsi/fc/fc_els.h
+++ b/include/uapi/scsi/fc/fc_els.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright(c) 2007 Intel Corporation. All rights reserved.
  *
diff --git a/include/uapi/scsi/fc/fc_fs.h b/include/uapi/scsi/fc/fc_fs.h
index dcf314dc2a27..8c0a292a61ed 100644
--- a/include/uapi/scsi/fc/fc_fs.h
+++ b/include/uapi/scsi/fc/fc_fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright(c) 2007 Intel Corporation. All rights reserved.
  *
diff --git a/include/uapi/scsi/fc/fc_gs.h b/include/uapi/scsi/fc/fc_gs.h
index a37346d47eb1..2153f3524555 100644
--- a/include/uapi/scsi/fc/fc_gs.h
+++ b/include/uapi/scsi/fc/fc_gs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright(c) 2007 Intel Corporation. All rights reserved.
  *
diff --git a/include/uapi/scsi/fc/fc_ns.h b/include/uapi/scsi/fc/fc_ns.h
index f7751d53f1d3..015e5e1ce8f1 100644
--- a/include/uapi/scsi/fc/fc_ns.h
+++ b/include/uapi/scsi/fc/fc_ns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright(c) 2007 Intel Corporation. All rights reserved.
  *
diff --git a/include/uapi/scsi/scsi_bsg_fc.h b/include/uapi/scsi/scsi_bsg_fc.h
index 3031b900b087..62597d86beed 100644
--- a/include/uapi/scsi/scsi_bsg_fc.h
+++ b/include/uapi/scsi/scsi_bsg_fc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  FC Transport BSG Interface
  *
diff --git a/include/uapi/scsi/scsi_netlink.h b/include/uapi/scsi/scsi_netlink.h
index 62b4edab15d3..5ccc2333acab 100644
--- a/include/uapi/scsi/scsi_netlink.h
+++ b/include/uapi/scsi/scsi_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  SCSI Transport Netlink Interface
  *    Used for the posting of outbound SCSI transport events
diff --git a/include/uapi/scsi/scsi_netlink_fc.h b/include/uapi/scsi/scsi_netlink_fc.h
index cbf76e479761..060f563c38a2 100644
--- a/include/uapi/scsi/scsi_netlink_fc.h
+++ b/include/uapi/scsi/scsi_netlink_fc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  FC Transport Netlink Interface
  *
diff --git a/include/uapi/sound/asequencer.h b/include/uapi/sound/asequencer.h
index 7b7659a79ac4..a75e14edc957 100644
--- a/include/uapi/sound/asequencer.h
+++ b/include/uapi/sound/asequencer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Main header file for the ALSA sequencer
  *  Copyright (c) 1998-1999 by Frank van de Pol <fvdpol@coil.demon.nl>
diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
index 78014ec56357..69c37ecbff7e 100644
--- a/include/uapi/sound/asoc.h
+++ b/include/uapi/sound/asoc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * uapi/sound/asoc.h -- ALSA SoC Firmware Controls and DAPM
  *
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 1949923a40bf..c227ccba60ae 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Advanced Linux Sound Architecture - ALSA - Driver
  *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
@@ -93,7 +94,7 @@ enum {
 	SNDRV_HWDEP_IFACE_VX,		/* Digigram VX cards */
 	SNDRV_HWDEP_IFACE_MIXART,	/* Digigram miXart cards */
 	SNDRV_HWDEP_IFACE_USX2Y,	/* Tascam US122, US224 & US428 usb */
-	SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */	
+	SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
 	SNDRV_HWDEP_IFACE_BLUETOOTH,	/* Bluetooth audio */
 	SNDRV_HWDEP_IFACE_USX2Y_PCM,	/* Tascam US122, US224 & US428 rawusb pcm */
 	SNDRV_HWDEP_IFACE_PCXHR,	/* Digigram PCXHR */
@@ -383,7 +384,7 @@ struct snd_mask {
 
 struct snd_pcm_hw_params {
 	unsigned int flags;
-	struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - 
+	struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
 			       SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
 	struct snd_mask mres[5];	/* reserved masks */
 	struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
@@ -856,7 +857,7 @@ typedef int __bitwise snd_ctl_elem_iface_t;
 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE		(1<<8)	/* control does actually nothing, but may be updated */
 #define SNDRV_CTL_ELEM_ACCESS_LOCK		(1<<9)	/* write lock */
 #define SNDRV_CTL_ELEM_ACCESS_OWNER		(1<<10)	/* write lock owner */
-#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK	(1<<28)	/* kernel use a TLV callback */ 
+#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK	(1<<28)	/* kernel use a TLV callback */
 #define SNDRV_CTL_ELEM_ACCESS_USER		(1<<29) /* user space element */
 /* bits 30 and 31 are obsoleted (for indirect access) */
 
diff --git a/include/uapi/sound/asound_fm.h b/include/uapi/sound/asound_fm.h
index c2a4b967d5be..8471f404ff0b 100644
--- a/include/uapi/sound/asound_fm.h
+++ b/include/uapi/sound/asound_fm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_ASOUND_FM_H
 #define __SOUND_ASOUND_FM_H
 
diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h
index e00d8cbfc628..56d95673ce0f 100644
--- a/include/uapi/sound/compress_offload.h
+++ b/include/uapi/sound/compress_offload.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  *  compress_offload.h - compress offload header definations
  *
diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h
index 9625484a4a2a..3d4d6de66a17 100644
--- a/include/uapi/sound/compress_params.h
+++ b/include/uapi/sound/compress_params.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) AND MIT) */
 /*
  *  compress_params.h - codec types and parameters for compressed data
  *  streaming interface
diff --git a/include/uapi/sound/emu10k1.h b/include/uapi/sound/emu10k1.h
index 5175e166987d..042c5a6f16ee 100644
--- a/include/uapi/sound/emu10k1.h
+++ b/include/uapi/sound/emu10k1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>,
  *		     Creative Labs, Inc.
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index 622900488bdc..f0a547d86679 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
 #define _UAPI_SOUND_FIREWIRE_H_INCLUDED
 
diff --git a/include/uapi/sound/hdsp.h b/include/uapi/sound/hdsp.h
index 0909a3843479..5dc0c3db0a4c 100644
--- a/include/uapi/sound/hdsp.h
+++ b/include/uapi/sound/hdsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_HDSP_H
 #define __SOUND_HDSP_H
 
diff --git a/include/uapi/sound/hdspm.h b/include/uapi/sound/hdspm.h
index c4db6f5b306e..a38f3f79beb7 100644
--- a/include/uapi/sound/hdspm.h
+++ b/include/uapi/sound/hdspm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_HDSPM_H
 #define __SOUND_HDSPM_H
 /*
diff --git a/include/uapi/sound/sb16_csp.h b/include/uapi/sound/sb16_csp.h
index 3b96907e2afb..e64851481d88 100644
--- a/include/uapi/sound/sb16_csp.h
+++ b/include/uapi/sound/sb16_csp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Copyright (c) 1999 by Uros Bizjak <uros@kss-loka.si>
  *                        Takashi Iwai <tiwai@suse.de>
diff --git a/include/uapi/sound/sfnt_info.h b/include/uapi/sound/sfnt_info.h
index 1bce7fd1725f..c9a810a6ef48 100644
--- a/include/uapi/sound/sfnt_info.h
+++ b/include/uapi/sound/sfnt_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 #ifndef __SOUND_SFNT_INFO_H
 #define __SOUND_SFNT_INFO_H
 
diff --git a/include/uapi/sound/snd_sst_tokens.h b/include/uapi/sound/snd_sst_tokens.h
index f691e421f5e8..326054a72bc7 100644
--- a/include/uapi/sound/snd_sst_tokens.h
+++ b/include/uapi/sound/snd_sst_tokens.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * snd_sst_tokens.h - Intel SST tokens definition
  *
diff --git a/include/uapi/sound/tlv.h b/include/uapi/sound/tlv.h
index b4df440c015b..be5371f09a62 100644
--- a/include/uapi/sound/tlv.h
+++ b/include/uapi/sound/tlv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
diff --git a/include/uapi/sound/usb_stream.h b/include/uapi/sound/usb_stream.h
index cfe8fba00714..95419d8bbc16 100644
--- a/include/uapi/sound/usb_stream.h
+++ b/include/uapi/sound/usb_stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * Copyright (C) 2007, 2008 Karsten Wiese <fzu@wemgehoertderstaat.de>
  *
diff --git a/include/uapi/video/edid.h b/include/uapi/video/edid.h
index 8c0f032014c9..c6030dc10d6b 100644
--- a/include/uapi/video/edid.h
+++ b/include/uapi/video/edid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__linux_video_edid_h__
 #define _UAPI__linux_video_edid_h__
 
diff --git a/include/uapi/video/sisfb.h b/include/uapi/video/sisfb.h
index 9250b22b10f8..f1e811951288 100644
--- a/include/uapi/video/sisfb.h
+++ b/include/uapi/video/sisfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  * sisfb.h - definitions for the SiS framebuffer driver
  *
diff --git a/include/uapi/video/uvesafb.h b/include/uapi/video/uvesafb.h
index cee063d723ad..a0d5c9213e92 100644
--- a/include/uapi/video/uvesafb.h
+++ b/include/uapi/video/uvesafb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_UVESAFB_H
 #define _UAPI_UVESAFB_H
 
diff --git a/include/uapi/xen/evtchn.h b/include/uapi/xen/evtchn.h
index cb4aa4bb905e..7fbf732f168f 100644
--- a/include/uapi/xen/evtchn.h
+++ b/include/uapi/xen/evtchn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
 /******************************************************************************
  * evtchn.h
  *
diff --git a/include/uapi/xen/gntdev.h b/include/uapi/xen/gntdev.h
index d0661977667e..6d1163456c03 100644
--- a/include/uapi/xen/gntdev.h
+++ b/include/uapi/xen/gntdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
 /******************************************************************************
  * gntdev.h
  * 
diff --git a/include/uapi/xen/privcmd.h b/include/uapi/xen/privcmd.h
index 63ee95c9dabb..39d3e7b8e993 100644
--- a/include/uapi/xen/privcmd.h
+++ b/include/uapi/xen/privcmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR MIT) */
 /******************************************************************************
  * privcmd.h
  *
diff --git a/include/video/aty128.h b/include/video/aty128.h
index f0851e3bb7cc..cb6721ebfd34 100644
--- a/include/video/aty128.h
+++ b/include/video/aty128.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*  $Id: aty128.h,v 1.1 1999/10/12 11:00:40 geert Exp $
  *  linux/drivers/video/aty128.h
  *  Register definitions for ATI Rage128 boards
diff --git a/include/video/edid.h b/include/video/edid.h
index 0cb8b2a92b75..f614371e9116 100644
--- a/include/video/edid.h
+++ b/include/video/edid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __linux_video_edid_h__
 #define __linux_video_edid_h__
 
diff --git a/include/video/iga.h b/include/video/iga.h
index 5a48f16578f8..83ca18492e00 100644
--- a/include/video/iga.h
+++ b/include/video/iga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: iga.h,v 1.2 1999/09/11 22:56:31 zaitcev Exp $
  * iga1682.h: Sparc/PCI iga1682 driver constants etc.
  *
diff --git a/include/video/mbxfb.h b/include/video/mbxfb.h
index ea18961fc5e7..35921cb6d1e5 100644
--- a/include/video/mbxfb.h
+++ b/include/video/mbxfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MBX_FB_H
 #define __MBX_FB_H
 
diff --git a/include/video/newport.h b/include/video/newport.h
index de980a3b60c9..bcbb3d1b6bf9 100644
--- a/include/video/newport.h
+++ b/include/video/newport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* $Id: newport.h,v 1.5 1999/08/04 06:01:51 ulfc Exp $
  *
  * newport.h: Defines and register layout for NEWPORT graphics
diff --git a/include/video/radeon.h b/include/video/radeon.h
index 56b188abfb54..005eae19ec09 100644
--- a/include/video/radeon.h
+++ b/include/video/radeon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RADEON_H
 #define _RADEON_H
 
diff --git a/include/video/sh_mobile_lcdc.h b/include/video/sh_mobile_lcdc.h
index 2605fa8adb9c..f706b0fed399 100644
--- a/include/video/sh_mobile_lcdc.h
+++ b/include/video/sh_mobile_lcdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_SH_MOBILE_LCDC_H__
 #define __ASM_SH_MOBILE_LCDC_H__
 
diff --git a/include/video/sh_mobile_meram.h b/include/video/sh_mobile_meram.h
index 062e6e7f955c..f4efc21e205d 100644
--- a/include/video/sh_mobile_meram.h
+++ b/include/video/sh_mobile_meram.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __VIDEO_SH_MOBILE_MERAM_H__
 #define __VIDEO_SH_MOBILE_MERAM_H__
 
diff --git a/include/video/sstfb.h b/include/video/sstfb.h
index c449eace12cd..28384f354773 100644
--- a/include/video/sstfb.h
+++ b/include/video/sstfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/drivers/video/sstfb.h -- voodoo graphics frame buffer
  *
diff --git a/include/video/tdfx.h b/include/video/tdfx.h
index 69674b94bb68..6144633acc47 100644
--- a/include/video/tdfx.h
+++ b/include/video/tdfx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TDFX_H
 #define _TDFX_H
 
diff --git a/include/video/trident.h b/include/video/trident.h
index b6ce19d1b61b..5ccc0d6a070c 100644
--- a/include/video/trident.h
+++ b/include/video/trident.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef TRIDENTFB_DEBUG
 #define TRIDENTFB_DEBUG 0
diff --git a/include/video/udlfb.h b/include/video/udlfb.h
index 3ea90aea5617..1252a7a89bc0 100644
--- a/include/video/udlfb.h
+++ b/include/video/udlfb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef UDLFB_H
 #define UDLFB_H
 
diff --git a/include/video/uvesafb.h b/include/video/uvesafb.h
index 30f53625415c..8d2a3bfc8dac 100644
--- a/include/video/uvesafb.h
+++ b/include/video/uvesafb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UVESAFB_H
 #define _UVESAFB_H
 
diff --git a/include/xen/arm/hypervisor.h b/include/xen/arm/hypervisor.h
index 44b587b49904..2982571f7cc1 100644
--- a/include/xen/arm/hypervisor.h
+++ b/include/xen/arm/hypervisor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_HYPERVISOR_H
 #define _ASM_ARM_XEN_HYPERVISOR_H
 
diff --git a/include/xen/arm/interface.h b/include/xen/arm/interface.h
index 75d596862892..c3eada2642aa 100644
--- a/include/xen/arm/interface.h
+++ b/include/xen/arm/interface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * Guest OS interface to ARM Xen.
  *
diff --git a/include/xen/arm/page-coherent.h b/include/xen/arm/page-coherent.h
index b1b4ecdf329a..59a260712a56 100644
--- a/include/xen/arm/page-coherent.h
+++ b/include/xen/arm/page-coherent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_PAGE_COHERENT_H
 #define _ASM_ARM_XEN_PAGE_COHERENT_H
 
diff --git a/include/xen/arm/page.h b/include/xen/arm/page.h
index 415dbc6e43fd..f77dcbcba5a6 100644
--- a/include/xen/arm/page.h
+++ b/include/xen/arm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_ARM_XEN_PAGE_H
 #define _ASM_ARM_XEN_PAGE_H
 
@@ -84,16 +85,6 @@ static inline xmaddr_t arbitrary_virt_to_machine(void *vaddr)
 	BUG();
 }
 
-/* TODO: this shouldn't be here but it is because the frontend drivers
- * are using it (its rolled in headers) even though we won't hit the code path.
- * So for right now just punt with this.
- */
-static inline pte_t *lookup_address(unsigned long address, unsigned int *level)
-{
-	BUG();
-	return NULL;
-}
-
 extern int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
 				   struct gnttab_map_grant_ref *kmap_ops,
 				   struct page **pages, unsigned int count);
diff --git a/include/xen/balloon.h b/include/xen/balloon.h
index 8906361bb50c..4914b93a23f2 100644
--- a/include/xen/balloon.h
+++ b/include/xen/balloon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * Xen balloon functionality
  */
diff --git a/include/xen/events.h b/include/xen/events.h
index f442ca5fcd82..c3e6bc643a7b 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_EVENTS_H
 #define _XEN_EVENTS_H
 
diff --git a/include/xen/features.h b/include/xen/features.h
index 27292d4d2a6a..e4cb464386a9 100644
--- a/include/xen/features.h
+++ b/include/xen/features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * features.h
  *
diff --git a/include/xen/hvc-console.h b/include/xen/hvc-console.h
index b62dfef15f61..d8949d5e227d 100644
--- a/include/xen/hvc-console.h
+++ b/include/xen/hvc-console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef XEN_HVC_CONSOLE_H
 #define XEN_HVC_CONSOLE_H
 
diff --git a/include/xen/hvm.h b/include/xen/hvm.h
index 63917a8de3b0..0b15f8cb17fc 100644
--- a/include/xen/hvm.h
+++ b/include/xen/hvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Simple wrappers around HVM functions */
 #ifndef XEN_HVM_H__
 #define XEN_HVM_H__
diff --git a/include/xen/interface/event_channel.h b/include/xen/interface/event_channel.h
index 7e6acef5415b..45650c9a06d5 100644
--- a/include/xen/interface/event_channel.h
+++ b/include/xen/interface/event_channel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * event_channel.h
  *
diff --git a/include/xen/interface/features.h b/include/xen/interface/features.h
index 6ad3d110bb81..9b0eb574f0d1 100644
--- a/include/xen/interface/features.h
+++ b/include/xen/interface/features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * features.h
  *
diff --git a/include/xen/interface/io/blkif.h b/include/xen/interface/io/blkif.h
index 8b8cfadf7833..5e40041c7e95 100644
--- a/include/xen/interface/io/blkif.h
+++ b/include/xen/interface/io/blkif.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * blkif.h
  *
diff --git a/include/xen/interface/io/console.h b/include/xen/interface/io/console.h
index e563de70f784..85ca8b02695a 100644
--- a/include/xen/interface/io/console.h
+++ b/include/xen/interface/io/console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * console.h
  *
diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h
index 545a14ba0bb3..6a89dc1bf225 100644
--- a/include/xen/interface/io/protocols.h
+++ b/include/xen/interface/io/protocols.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XEN_PROTOCOLS_H__
 #define __XEN_PROTOCOLS_H__
 
diff --git a/include/xen/interface/io/ring.h b/include/xen/interface/io/ring.h
index e547088ceb0e..3f40501fc60b 100644
--- a/include/xen/interface/io/ring.h
+++ b/include/xen/interface/io/ring.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * ring.h
  *
diff --git a/include/xen/interface/io/xenbus.h b/include/xen/interface/io/xenbus.h
index 9fda532973a5..aaf2951b1cce 100644
--- a/include/xen/interface/io/xenbus.h
+++ b/include/xen/interface/io/xenbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*****************************************************************************
  * xenbus.h
  *
diff --git a/include/xen/interface/io/xs_wire.h b/include/xen/interface/io/xs_wire.h
index 794deb07eb53..1517c7e93a3a 100644
--- a/include/xen/interface/io/xs_wire.h
+++ b/include/xen/interface/io/xs_wire.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Details of the "wire" protocol between Xen Store Daemon and client
  * library or guest kernel.
diff --git a/include/xen/interface/memory.h b/include/xen/interface/memory.h
index 9aa8988cb340..583dd93b3016 100644
--- a/include/xen/interface/memory.h
+++ b/include/xen/interface/memory.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * memory.h
  *
diff --git a/include/xen/interface/nmi.h b/include/xen/interface/nmi.h
index b47d9d06fade..73d9b0a2974e 100644
--- a/include/xen/interface/nmi.h
+++ b/include/xen/interface/nmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * nmi.h
  *
diff --git a/include/xen/interface/version.h b/include/xen/interface/version.h
index 145f12f9ecec..8772b552c006 100644
--- a/include/xen/interface/version.h
+++ b/include/xen/interface/version.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /******************************************************************************
  * version.h
  *
diff --git a/include/xen/interface/xenpmu.h b/include/xen/interface/xenpmu.h
index 139efc91bceb..ad603eab24b3 100644
--- a/include/xen/interface/xenpmu.h
+++ b/include/xen/interface/xenpmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __XEN_PUBLIC_XENPMU_H__
 #define __XEN_PUBLIC_XENPMU_H__
 
diff --git a/include/xen/page.h b/include/xen/page.h
index 064194f6453e..df6d6b6ec66e 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_PAGE_H
 #define _XEN_PAGE_H
 
diff --git a/include/xen/platform_pci.h b/include/xen/platform_pci.h
index 5c52b5583917..e51e7cb71a85 100644
--- a/include/xen/platform_pci.h
+++ b/include/xen/platform_pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_PLATFORM_PCI_H
 #define _XEN_PLATFORM_PCI_H
 
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index ed2de363da33..5e4b83f83dbc 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SWIOTLB_XEN_H
 #define __LINUX_SWIOTLB_XEN_H
 
diff --git a/include/xen/tmem.h b/include/xen/tmem.h
index 3930a90045ff..c80bafe31f14 100644
--- a/include/xen/tmem.h
+++ b/include/xen/tmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_TMEM_H
 #define _XEN_TMEM_H
 
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index 218e6aae5433..a95e65ec83c3 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef INCLUDE_XEN_OPS_H
 #define INCLUDE_XEN_OPS_H
 
diff --git a/include/xen/xen.h b/include/xen/xen.h
index 28c59ca529d7..9d4340c907d1 100644
--- a/include/xen/xen.h
+++ b/include/xen/xen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XEN_XEN_H
 #define _XEN_XEN_H
 
diff --git a/init/Kconfig b/init/Kconfig
index 78cb2461012e..c1fd2863d4ba 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -472,6 +472,13 @@ config TASK_IO_ACCOUNTING
 
 endmenu # "CPU/Task time and stats accounting"
 
+config CPU_ISOLATION
+	bool "CPU isolation"
+	help
+	  Make sure that CPUs running critical tasks are not disturbed by
+	  any source of "noise" such as unbound workqueues, timers, kthreads...
+	  Unbound jobs get offloaded to housekeeping CPUs.
+
 source "kernel/rcu/Kconfig"
 
 config BUILD_BIN2C
@@ -1033,7 +1040,7 @@ endif
 
 choice
 	prompt "Compiler optimization level"
-	default CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE
+	default CC_OPTIMIZE_FOR_PERFORMANCE
 
 config CC_OPTIMIZE_FOR_PERFORMANCE
 	bool "Optimize for performance"
diff --git a/init/Makefile b/init/Makefile
index c4fb45525d08..1dbb23787290 100644
--- a/init/Makefile
+++ b/init/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/init/calibrate.c b/init/calibrate.c
index ce635dccf3d9..f3831272f113 100644
--- a/init/calibrate.c
+++ b/init/calibrate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* calibrate.c: default delay calibration
  *
  * Excised from init/main.c
diff --git a/init/do_mounts.c b/init/do_mounts.c
index c2de5104aad2..f6d4dd764a52 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -373,7 +373,7 @@ static int __init do_mount_root(char *name, char *fs, int flags, void *data)
 	printk(KERN_INFO
 	       "VFS: Mounted root (%s filesystem)%s on device %u:%u.\n",
 	       s->s_type->name,
-	       s->s_flags & MS_RDONLY ?  " readonly" : "",
+	       sb_rdonly(s) ? " readonly" : "",
 	       MAJOR(ROOT_DEV), MINOR(ROOT_DEV));
 	return 0;
 }
@@ -420,8 +420,8 @@ retry:
 #endif
 		panic("VFS: Unable to mount root fs on %s", b);
 	}
-	if (!(flags & MS_RDONLY)) {
-		flags |= MS_RDONLY;
+	if (!(flags & SB_RDONLY)) {
+		flags |= SB_RDONLY;
 		goto retry;
 	}
 
diff --git a/init/do_mounts.h b/init/do_mounts.h
index 282d65bfd674..5b05c8f93f47 100644
--- a/init/do_mounts.h
+++ b/init/do_mounts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/kernel.h>
 #include <linux/blkdev.h>
 #include <linux/init.h>
diff --git a/init/do_mounts_initrd.c b/init/do_mounts_initrd.c
index a1000ca29fc9..53d4f0f326e7 100644
--- a/init/do_mounts_initrd.c
+++ b/init/do_mounts_initrd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Many of the syscalls used in this file expect some of the arguments
  * to be __user pointers not __kernel pointers.  To limit the sparse
diff --git a/init/do_mounts_md.c b/init/do_mounts_md.c
index 8cb6db54285b..3f733c760a8c 100644
--- a/init/do_mounts_md.c
+++ b/init/do_mounts_md.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Many of the syscalls used in this file expect some of the arguments
  * to be __user pointers not __kernel pointers.  To limit the sparse
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index dd4104c9aa12..99e0b649fc0e 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Many of the syscalls used in this file expect some of the arguments
  * to be __user pointers not __kernel pointers.  To limit the sparse
diff --git a/init/init_task.c b/init/init_task.c
index 66787e30a419..9325fee7dc82 100644
--- a/init/init_task.c
+++ b/init/init_task.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init_task.h>
 #include <linux/export.h>
 #include <linux/mqueue.h>
diff --git a/init/initramfs.c b/init/initramfs.c
index 8a532050043f..7046feffef6b 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Many of the syscalls used in this file expect some of the arguments
  * to be __user pointers not __kernel pointers.  To limit the sparse
@@ -110,7 +111,7 @@ static void __init free_hash(void)
 
 static long __init do_utime(char *filename, time_t mtime)
 {
-	struct timespec t[2];
+	struct timespec64 t[2];
 
 	t[0].tv_sec = mtime;
 	t[0].tv_nsec = 0;
diff --git a/init/main.c b/init/main.c
index 0ee9c6866ada..3bdd8da90f69 100644
--- a/init/main.c
+++ b/init/main.c
@@ -46,6 +46,7 @@
 #include <linux/cgroup.h>
 #include <linux/efi.h>
 #include <linux/tick.h>
+#include <linux/sched/isolation.h>
 #include <linux/interrupt.h>
 #include <linux/taskstats_kern.h>
 #include <linux/delayacct.h>
@@ -606,6 +607,7 @@ asmlinkage __visible void __init start_kernel(void)
 	early_irq_init();
 	init_IRQ();
 	tick_init();
+	housekeeping_init();
 	rcu_init_nohz();
 	init_timers();
 	hrtimers_init();
@@ -664,12 +666,12 @@ asmlinkage __visible void __init start_kernel(void)
 	debug_objects_mem_init();
 	setup_per_cpu_pageset();
 	numa_policy_init();
+	acpi_early_init();
 	if (late_time_init)
 		late_time_init();
 	calibrate_delay();
 	pidmap_init();
 	anon_vma_init();
-	acpi_early_init();
 #ifdef CONFIG_X86
 	if (efi_enabled(EFI_RUNTIME_SERVICES))
 		efi_enter_virtual_mode();
diff --git a/ipc/Makefile b/ipc/Makefile
index 9c200e544434..c2558c430f51 100644
--- a/ipc/Makefile
+++ b/ipc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux ipc.
 #
diff --git a/ipc/compat.c b/ipc/compat.c
index 9b3c85f8a538..5ab8225923af 100644
--- a/ipc/compat.c
+++ b/ipc/compat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * 32 bit compatibility code for System V IPC
  *
@@ -34,724 +35,48 @@
 
 #include "util.h"
 
-struct compat_msgbuf {
-	compat_long_t mtype;
-	char mtext[1];
-};
-
-struct compat_ipc_perm {
-	key_t key;
-	__compat_uid_t uid;
-	__compat_gid_t gid;
-	__compat_uid_t cuid;
-	__compat_gid_t cgid;
-	compat_mode_t mode;
-	unsigned short seq;
-};
-
-struct compat_semid_ds {
-	struct compat_ipc_perm sem_perm;
-	compat_time_t sem_otime;
-	compat_time_t sem_ctime;
-	compat_uptr_t sem_base;
-	compat_uptr_t sem_pending;
-	compat_uptr_t sem_pending_last;
-	compat_uptr_t undo;
-	unsigned short sem_nsems;
-};
-
-struct compat_msqid_ds {
-	struct compat_ipc_perm msg_perm;
-	compat_uptr_t msg_first;
-	compat_uptr_t msg_last;
-	compat_time_t msg_stime;
-	compat_time_t msg_rtime;
-	compat_time_t msg_ctime;
-	compat_ulong_t msg_lcbytes;
-	compat_ulong_t msg_lqbytes;
-	unsigned short msg_cbytes;
-	unsigned short msg_qnum;
-	unsigned short msg_qbytes;
-	compat_ipc_pid_t msg_lspid;
-	compat_ipc_pid_t msg_lrpid;
-};
-
-struct compat_shmid_ds {
-	struct compat_ipc_perm shm_perm;
-	int shm_segsz;
-	compat_time_t shm_atime;
-	compat_time_t shm_dtime;
-	compat_time_t shm_ctime;
-	compat_ipc_pid_t shm_cpid;
-	compat_ipc_pid_t shm_lpid;
-	unsigned short shm_nattch;
-	unsigned short shm_unused;
-	compat_uptr_t shm_unused2;
-	compat_uptr_t shm_unused3;
-};
-
-struct compat_ipc_kludge {
-	compat_uptr_t msgp;
-	compat_long_t msgtyp;
-};
-
-struct compat_shminfo64 {
-	compat_ulong_t shmmax;
-	compat_ulong_t shmmin;
-	compat_ulong_t shmmni;
-	compat_ulong_t shmseg;
-	compat_ulong_t shmall;
-	compat_ulong_t __unused1;
-	compat_ulong_t __unused2;
-	compat_ulong_t __unused3;
-	compat_ulong_t __unused4;
-};
-
-struct compat_shm_info {
-	compat_int_t used_ids;
-	compat_ulong_t shm_tot, shm_rss, shm_swp;
-	compat_ulong_t swap_attempts, swap_successes;
-};
-
-static inline int compat_ipc_parse_version(int *cmd)
-{
-#ifdef	CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
-	int version = *cmd & IPC_64;
-
-	/* this is tricky: architectures that have support for the old
-	 * ipc structures in 64 bit binaries need to have IPC_64 set
-	 * in cmd, the others need to have it cleared */
-#ifndef ipc_parse_version
-	*cmd |= IPC_64;
-#else
-	*cmd &= ~IPC_64;
-#endif
-	return version;
-#else
-	/* With the asm-generic APIs, we always use the 64-bit versions. */
-	return IPC_64;
-#endif
-}
-
-static inline int __get_compat_ipc64_perm(struct ipc64_perm *p64,
-					  struct compat_ipc64_perm __user *up64)
-{
-	int err;
-
-	err  = __get_user(p64->uid, &up64->uid);
-	err |= __get_user(p64->gid, &up64->gid);
-	err |= __get_user(p64->mode, &up64->mode);
-	return err;
-}
-
-static inline int __get_compat_ipc_perm(struct ipc64_perm *p,
-					struct compat_ipc_perm __user *up)
-{
-	int err;
-
-	err  = __get_user(p->uid, &up->uid);
-	err |= __get_user(p->gid, &up->gid);
-	err |= __get_user(p->mode, &up->mode);
-	return err;
-}
-
-static inline int __put_compat_ipc64_perm(struct ipc64_perm *p64,
-					  struct compat_ipc64_perm __user *up64)
+int get_compat_ipc64_perm(struct ipc64_perm *to,
+			  struct compat_ipc64_perm __user *from)
 {
-	int err;
-
-	err  = __put_user(p64->key, &up64->key);
-	err |= __put_user(p64->uid, &up64->uid);
-	err |= __put_user(p64->gid, &up64->gid);
-	err |= __put_user(p64->cuid, &up64->cuid);
-	err |= __put_user(p64->cgid, &up64->cgid);
-	err |= __put_user(p64->mode, &up64->mode);
-	err |= __put_user(p64->seq, &up64->seq);
-	return err;
-}
-
-static inline int __put_compat_ipc_perm(struct ipc64_perm *p,
-					struct compat_ipc_perm __user *uip)
-{
-	int err;
-	__compat_uid_t u;
-	__compat_gid_t g;
-
-	err  = __put_user(p->key, &uip->key);
-	SET_UID(u, p->uid);
-	err |= __put_user(u, &uip->uid);
-	SET_GID(g, p->gid);
-	err |= __put_user(g, &uip->gid);
-	SET_UID(u, p->cuid);
-	err |= __put_user(u, &uip->cuid);
-	SET_GID(g, p->cgid);
-	err |= __put_user(g, &uip->cgid);
-	err |= __put_user(p->mode, &uip->mode);
-	err |= __put_user(p->seq, &uip->seq);
-	return err;
-}
-
-static inline int get_compat_semid64_ds(struct semid64_ds *sem64,
-					struct compat_semid64_ds __user *up64)
-{
-	if (!access_ok(VERIFY_READ, up64, sizeof(*up64)))
-		return -EFAULT;
-	return __get_compat_ipc64_perm(&sem64->sem_perm, &up64->sem_perm);
-}
-
-static inline int get_compat_semid_ds(struct semid64_ds *s,
-				      struct compat_semid_ds __user *up)
-{
-	if (!access_ok(VERIFY_READ, up, sizeof(*up)))
+	struct compat_ipc64_perm v;
+	if (copy_from_user(&v, from, sizeof(v)))
 		return -EFAULT;
-	return __get_compat_ipc_perm(&s->sem_perm, &up->sem_perm);
+	to->uid = v.uid;
+	to->gid = v.gid;
+	to->mode = v.mode;
+	return 0;
 }
 
-static inline int put_compat_semid64_ds(struct semid64_ds *sem64,
-					struct compat_semid64_ds __user *up64)
+int get_compat_ipc_perm(struct ipc64_perm *to,
+			struct compat_ipc_perm __user *from)
 {
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64)))
+	struct compat_ipc_perm v;
+	if (copy_from_user(&v, from, sizeof(v)))
 		return -EFAULT;
-	err  = __put_compat_ipc64_perm(&sem64->sem_perm, &up64->sem_perm);
-	err |= __put_user(sem64->sem_otime, &up64->sem_otime);
-	err |= __put_user(sem64->sem_ctime, &up64->sem_ctime);
-	err |= __put_user(sem64->sem_nsems, &up64->sem_nsems);
-	return err;
+	to->uid = v.uid;
+	to->gid = v.gid;
+	to->mode = v.mode;
+	return 0;
 }
 
-static inline int put_compat_semid_ds(struct semid64_ds *s,
-				      struct compat_semid_ds __user *up)
+void to_compat_ipc64_perm(struct compat_ipc64_perm *to, struct ipc64_perm *from)
 {
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
-		return -EFAULT;
-	err  = __put_compat_ipc_perm(&s->sem_perm, &up->sem_perm);
-	err |= __put_user(s->sem_otime, &up->sem_otime);
-	err |= __put_user(s->sem_ctime, &up->sem_ctime);
-	err |= __put_user(s->sem_nsems, &up->sem_nsems);
-	return err;
+	to->key = from->key;
+	to->uid = from->uid;
+	to->gid = from->gid;
+	to->cuid = from->cuid;
+	to->cgid = from->cgid;
+	to->mode = from->mode;
+	to->seq = from->seq;
 }
 
-static long do_compat_semctl(int first, int second, int third, u32 pad)
+void to_compat_ipc_perm(struct compat_ipc_perm *to, struct ipc64_perm *from)
 {
-	unsigned long fourth;
-	int err, err2;
-	struct semid64_ds sem64;
-	struct semid64_ds __user *up64;
-	int version = compat_ipc_parse_version(&third);
-
-	memset(&sem64, 0, sizeof(sem64));
-
-	if ((third & (~IPC_64)) == SETVAL)
-#ifdef __BIG_ENDIAN
-		fourth = (unsigned long)pad << 32;
-#else
-		fourth = pad;
-#endif
-	else
-		fourth = (unsigned long)compat_ptr(pad);
-	switch (third & (~IPC_64)) {
-	case IPC_INFO:
-	case IPC_RMID:
-	case SEM_INFO:
-	case GETVAL:
-	case GETPID:
-	case GETNCNT:
-	case GETZCNT:
-	case GETALL:
-	case SETVAL:
-	case SETALL:
-		err = sys_semctl(first, second, third, fourth);
-		break;
-
-	case IPC_STAT:
-	case SEM_STAT:
-		up64 = compat_alloc_user_space(sizeof(sem64));
-		fourth = (unsigned long)up64;
-		err = sys_semctl(first, second, third, fourth);
-		if (err < 0)
-			break;
-		if (copy_from_user(&sem64, up64, sizeof(sem64)))
-			err2 = -EFAULT;
-		else if (version == IPC_64)
-			err2 = put_compat_semid64_ds(&sem64, compat_ptr(pad));
-		else
-			err2 = put_compat_semid_ds(&sem64, compat_ptr(pad));
-		if (err2)
-			err = -EFAULT;
-		break;
-
-	case IPC_SET:
-		if (version == IPC_64)
-			err = get_compat_semid64_ds(&sem64, compat_ptr(pad));
-		else
-			err = get_compat_semid_ds(&sem64, compat_ptr(pad));
-
-		up64 = compat_alloc_user_space(sizeof(sem64));
-		if (copy_to_user(up64, &sem64, sizeof(sem64)))
-			err = -EFAULT;
-		if (err)
-			break;
-
-		fourth = (unsigned long)up64;
-		err = sys_semctl(first, second, third, fourth);
-		break;
-
-	default:
-		err = -EINVAL;
-		break;
-	}
-	return err;
-}
-
-static long compat_do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz)
-{
-	struct compat_msgbuf __user *msgp = dest;
-	size_t msgsz;
-
-	if (put_user(msg->m_type, &msgp->mtype))
-		return -EFAULT;
-
-	msgsz = (bufsz > msg->m_ts) ? msg->m_ts : bufsz;
-	if (store_msg(msgp->mtext, msg, msgsz))
-		return -EFAULT;
-	return msgsz;
-}
-
-#ifndef COMPAT_SHMLBA
-#define COMPAT_SHMLBA	SHMLBA
-#endif
-
-#ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
-COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
-	u32, third, compat_uptr_t, ptr, u32, fifth)
-{
-	int version;
-	u32 pad;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		/* struct sembuf is the same on 32 and 64bit :)) */
-		return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
-	case SEMTIMEDOP:
-		return compat_sys_semtimedop(first, compat_ptr(ptr), second,
-						compat_ptr(fifth));
-	case SEMGET:
-		return sys_semget(first, second, third);
-	case SEMCTL:
-		if (!ptr)
-			return -EINVAL;
-		if (get_user(pad, (u32 __user *) compat_ptr(ptr)))
-			return -EFAULT;
-		return do_compat_semctl(first, second, third, pad);
-
-	case MSGSND: {
-		struct compat_msgbuf __user *up = compat_ptr(ptr);
-		compat_long_t type;
-
-		if (first < 0 || second < 0)
-			return -EINVAL;
-
-		if (get_user(type, &up->mtype))
-			return -EFAULT;
-
-		return do_msgsnd(first, type, up->mtext, second, third);
-	}
-	case MSGRCV: {
-		void __user *uptr = compat_ptr(ptr);
-
-		if (first < 0 || second < 0)
-			return -EINVAL;
-
-		if (!version) {
-			struct compat_ipc_kludge ipck;
-			if (!uptr)
-				return -EINVAL;
-			if (copy_from_user(&ipck, uptr, sizeof(ipck)))
-				return -EFAULT;
-			uptr = compat_ptr(ipck.msgp);
-			fifth = ipck.msgtyp;
-		}
-		return do_msgrcv(first, uptr, second, (s32)fifth, third,
-				 compat_do_msg_fill);
-	}
-	case MSGGET:
-		return sys_msgget(first, second);
-	case MSGCTL:
-		return compat_sys_msgctl(first, second, compat_ptr(ptr));
-
-	case SHMAT: {
-		int err;
-		unsigned long raddr;
-
-		if (version == 1)
-			return -EINVAL;
-		err = do_shmat(first, compat_ptr(ptr), second, &raddr,
-			       COMPAT_SHMLBA);
-		if (err < 0)
-			return err;
-		return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
-	}
-	case SHMDT:
-		return sys_shmdt(compat_ptr(ptr));
-	case SHMGET:
-		return sys_shmget(first, (unsigned)second, third);
-	case SHMCTL:
-		return compat_sys_shmctl(first, second, compat_ptr(ptr));
-	}
-
-	return -ENOSYS;
-}
-#endif
-
-COMPAT_SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, int, arg)
-{
-	return do_compat_semctl(semid, semnum, cmd, arg);
-}
-
-COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,
-		       compat_ssize_t, msgsz, int, msgflg)
-{
-	struct compat_msgbuf __user *up = compat_ptr(msgp);
-	compat_long_t mtype;
-
-	if (get_user(mtype, &up->mtype))
-		return -EFAULT;
-	return do_msgsnd(msqid, mtype, up->mtext, (ssize_t)msgsz, msgflg);
-}
-
-COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,
-		       compat_ssize_t, msgsz, compat_long_t, msgtyp, int, msgflg)
-{
-	return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,
-			 msgflg, compat_do_msg_fill);
-}
-
-static inline int get_compat_msqid64(struct msqid64_ds *m64,
-				     struct compat_msqid64_ds __user *up64)
-{
-	int err;
-
-	if (!access_ok(VERIFY_READ, up64, sizeof(*up64)))
-		return -EFAULT;
-	err  = __get_compat_ipc64_perm(&m64->msg_perm, &up64->msg_perm);
-	err |= __get_user(m64->msg_qbytes, &up64->msg_qbytes);
-	return err;
-}
-
-static inline int get_compat_msqid(struct msqid64_ds *m,
-				   struct compat_msqid_ds __user *up)
-{
-	int err;
-
-	if (!access_ok(VERIFY_READ, up, sizeof(*up)))
-		return -EFAULT;
-	err  = __get_compat_ipc_perm(&m->msg_perm, &up->msg_perm);
-	err |= __get_user(m->msg_qbytes, &up->msg_qbytes);
-	return err;
-}
-
-static inline int put_compat_msqid64_ds(struct msqid64_ds *m64,
-				 struct compat_msqid64_ds __user *up64)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64)))
-		return -EFAULT;
-	err  = __put_compat_ipc64_perm(&m64->msg_perm, &up64->msg_perm);
-	err |= __put_user(m64->msg_stime, &up64->msg_stime);
-	err |= __put_user(m64->msg_rtime, &up64->msg_rtime);
-	err |= __put_user(m64->msg_ctime, &up64->msg_ctime);
-	err |= __put_user(m64->msg_cbytes, &up64->msg_cbytes);
-	err |= __put_user(m64->msg_qnum, &up64->msg_qnum);
-	err |= __put_user(m64->msg_qbytes, &up64->msg_qbytes);
-	err |= __put_user(m64->msg_lspid, &up64->msg_lspid);
-	err |= __put_user(m64->msg_lrpid, &up64->msg_lrpid);
-	return err;
-}
-
-static inline int put_compat_msqid_ds(struct msqid64_ds *m,
-				      struct compat_msqid_ds __user *up)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
-		return -EFAULT;
-	err  = __put_compat_ipc_perm(&m->msg_perm, &up->msg_perm);
-	err |= __put_user(m->msg_stime, &up->msg_stime);
-	err |= __put_user(m->msg_rtime, &up->msg_rtime);
-	err |= __put_user(m->msg_ctime, &up->msg_ctime);
-	err |= __put_user(m->msg_cbytes, &up->msg_cbytes);
-	err |= __put_user(m->msg_qnum, &up->msg_qnum);
-	err |= __put_user(m->msg_qbytes, &up->msg_qbytes);
-	err |= __put_user(m->msg_lspid, &up->msg_lspid);
-	err |= __put_user(m->msg_lrpid, &up->msg_lrpid);
-	return err;
-}
-
-COMPAT_SYSCALL_DEFINE3(msgctl, int, first, int, second, void __user *, uptr)
-{
-	int err, err2;
-	struct msqid64_ds m64;
-	int version = compat_ipc_parse_version(&second);
-	void __user *p;
-
-	memset(&m64, 0, sizeof(m64));
-
-	switch (second & (~IPC_64)) {
-	case IPC_INFO:
-	case IPC_RMID:
-	case MSG_INFO:
-		err = sys_msgctl(first, second, uptr);
-		break;
-
-	case IPC_SET:
-		if (version == IPC_64)
-			err = get_compat_msqid64(&m64, uptr);
-		else
-			err = get_compat_msqid(&m64, uptr);
-
-		if (err)
-			break;
-		p = compat_alloc_user_space(sizeof(m64));
-		if (copy_to_user(p, &m64, sizeof(m64)))
-			err = -EFAULT;
-		else
-			err = sys_msgctl(first, second, p);
-		break;
-
-	case IPC_STAT:
-	case MSG_STAT:
-		p = compat_alloc_user_space(sizeof(m64));
-		err = sys_msgctl(first, second, p);
-		if (err < 0)
-			break;
-		if (copy_from_user(&m64, p, sizeof(m64)))
-			err2 = -EFAULT;
-		else if (version == IPC_64)
-			err2 = put_compat_msqid64_ds(&m64, uptr);
-		else
-			err2 = put_compat_msqid_ds(&m64, uptr);
-		if (err2)
-			err = -EFAULT;
-		break;
-
-	default:
-		err = -EINVAL;
-		break;
-	}
-	return err;
-}
-
-COMPAT_SYSCALL_DEFINE3(shmat, int, shmid, compat_uptr_t, shmaddr, int, shmflg)
-{
-	unsigned long ret;
-	long err;
-
-	err = do_shmat(shmid, compat_ptr(shmaddr), shmflg, &ret, COMPAT_SHMLBA);
-	if (err)
-		return err;
-	force_successful_syscall_return();
-	return (long)ret;
-}
-
-static inline int get_compat_shmid64_ds(struct shmid64_ds *sem64,
-					struct compat_shmid64_ds __user *up64)
-{
-	if (!access_ok(VERIFY_READ, up64, sizeof(*up64)))
-		return -EFAULT;
-	return __get_compat_ipc64_perm(&sem64->shm_perm, &up64->shm_perm);
-}
-
-static inline int get_compat_shmid_ds(struct shmid64_ds *s,
-				      struct compat_shmid_ds __user *up)
-{
-	if (!access_ok(VERIFY_READ, up, sizeof(*up)))
-		return -EFAULT;
-	return __get_compat_ipc_perm(&s->shm_perm, &up->shm_perm);
-}
-
-static inline int put_compat_shmid64_ds(struct shmid64_ds *sem64,
-					struct compat_shmid64_ds __user *up64)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64)))
-		return -EFAULT;
-	err  = __put_compat_ipc64_perm(&sem64->shm_perm, &up64->shm_perm);
-	err |= __put_user(sem64->shm_atime, &up64->shm_atime);
-	err |= __put_user(sem64->shm_dtime, &up64->shm_dtime);
-	err |= __put_user(sem64->shm_ctime, &up64->shm_ctime);
-	err |= __put_user(sem64->shm_segsz, &up64->shm_segsz);
-	err |= __put_user(sem64->shm_nattch, &up64->shm_nattch);
-	err |= __put_user(sem64->shm_cpid, &up64->shm_cpid);
-	err |= __put_user(sem64->shm_lpid, &up64->shm_lpid);
-	return err;
-}
-
-static inline int put_compat_shmid_ds(struct shmid64_ds *s,
-				      struct compat_shmid_ds __user *up)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
-		return -EFAULT;
-	err  = __put_compat_ipc_perm(&s->shm_perm, &up->shm_perm);
-	err |= __put_user(s->shm_atime, &up->shm_atime);
-	err |= __put_user(s->shm_dtime, &up->shm_dtime);
-	err |= __put_user(s->shm_ctime, &up->shm_ctime);
-	err |= __put_user(s->shm_segsz, &up->shm_segsz);
-	err |= __put_user(s->shm_nattch, &up->shm_nattch);
-	err |= __put_user(s->shm_cpid, &up->shm_cpid);
-	err |= __put_user(s->shm_lpid, &up->shm_lpid);
-	return err;
-}
-
-static inline int put_compat_shminfo64(struct shminfo64 *smi,
-				       struct compat_shminfo64 __user *up64)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up64, sizeof(*up64)))
-		return -EFAULT;
-	if (smi->shmmax > INT_MAX)
-		smi->shmmax = INT_MAX;
-	err  = __put_user(smi->shmmax, &up64->shmmax);
-	err |= __put_user(smi->shmmin, &up64->shmmin);
-	err |= __put_user(smi->shmmni, &up64->shmmni);
-	err |= __put_user(smi->shmseg, &up64->shmseg);
-	err |= __put_user(smi->shmall, &up64->shmall);
-	return err;
-}
-
-static inline int put_compat_shminfo(struct shminfo64 *smi,
-				     struct shminfo __user *up)
-{
-	int err;
-
-	if (!access_ok(VERIFY_WRITE, up, sizeof(*up)))
-		return -EFAULT;
-	if (smi->shmmax > INT_MAX)
-		smi->shmmax = INT_MAX;
-	err  = __put_user(smi->shmmax, &up->shmmax);
-	err |= __put_user(smi->shmmin, &up->shmmin);
-	err |= __put_user(smi->shmmni, &up->shmmni);
-	err |= __put_user(smi->shmseg, &up->shmseg);
-	err |= __put_user(smi->shmall, &up->shmall);
-	return err;
-}
-
-static inline int put_compat_shm_info(struct shm_info __user *ip,
-				      struct compat_shm_info __user *uip)
-{
-	int err;
-	struct shm_info si;
-
-	if (!access_ok(VERIFY_WRITE, uip, sizeof(*uip)) ||
-	    copy_from_user(&si, ip, sizeof(si)))
-		return -EFAULT;
-	err  = __put_user(si.used_ids, &uip->used_ids);
-	err |= __put_user(si.shm_tot, &uip->shm_tot);
-	err |= __put_user(si.shm_rss, &uip->shm_rss);
-	err |= __put_user(si.shm_swp, &uip->shm_swp);
-	err |= __put_user(si.swap_attempts, &uip->swap_attempts);
-	err |= __put_user(si.swap_successes, &uip->swap_successes);
-	return err;
-}
-
-COMPAT_SYSCALL_DEFINE3(shmctl, int, first, int, second, void __user *, uptr)
-{
-	void __user *p;
-	struct shmid64_ds sem64;
-	struct shminfo64 smi;
-	int err, err2;
-	int version = compat_ipc_parse_version(&second);
-
-	memset(&sem64, 0, sizeof(sem64));
-
-	switch (second & (~IPC_64)) {
-	case IPC_RMID:
-	case SHM_LOCK:
-	case SHM_UNLOCK:
-		err = sys_shmctl(first, second, uptr);
-		break;
-
-	case IPC_INFO:
-		p = compat_alloc_user_space(sizeof(smi));
-		err = sys_shmctl(first, second, p);
-		if (err < 0)
-			break;
-		if (copy_from_user(&smi, p, sizeof(smi)))
-			err2 = -EFAULT;
-		else if (version == IPC_64)
-			err2 = put_compat_shminfo64(&smi, uptr);
-		else
-			err2 = put_compat_shminfo(&smi, uptr);
-		if (err2)
-			err = -EFAULT;
-		break;
-
-
-	case IPC_SET:
-		if (version == IPC_64)
-			err = get_compat_shmid64_ds(&sem64, uptr);
-		else
-			err = get_compat_shmid_ds(&sem64, uptr);
-
-		if (err)
-			break;
-		p = compat_alloc_user_space(sizeof(sem64));
-		if (copy_to_user(p, &sem64, sizeof(sem64)))
-			err = -EFAULT;
-		else
-			err = sys_shmctl(first, second, p);
-		break;
-
-	case IPC_STAT:
-	case SHM_STAT:
-		p = compat_alloc_user_space(sizeof(sem64));
-		err = sys_shmctl(first, second, p);
-		if (err < 0)
-			break;
-		if (copy_from_user(&sem64, p, sizeof(sem64)))
-			err2 = -EFAULT;
-		else if (version == IPC_64)
-			err2 = put_compat_shmid64_ds(&sem64, uptr);
-		else
-			err2 = put_compat_shmid_ds(&sem64, uptr);
-		if (err2)
-			err = -EFAULT;
-		break;
-
-	case SHM_INFO:
-		p = compat_alloc_user_space(sizeof(struct shm_info));
-		err = sys_shmctl(first, second, p);
-		if (err < 0)
-			break;
-		err2 = put_compat_shm_info(p, uptr);
-		if (err2)
-			err = -EFAULT;
-		break;
-
-	default:
-		err = -EINVAL;
-		break;
-	}
-	return err;
-}
-
-COMPAT_SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsems,
-		       unsigned, nsops,
-		       const struct compat_timespec __user *, timeout)
-{
-	struct timespec __user *ts64;
-	if (compat_convert_timespec(&ts64, timeout))
-		return -EFAULT;
-	return sys_semtimedop(semid, tsems, nsops, ts64);
+	to->key = from->key;
+	SET_UID(to->uid, from->uid);
+	SET_GID(to->gid, from->gid);
+	SET_UID(to->cuid, from->cuid);
+	SET_GID(to->cgid, from->cgid);
+	to->mode = from->mode;
+	to->seq = from->seq;
 }
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index eb1391b52c6f..d24025626310 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -668,11 +668,11 @@ static void __do_notify(struct mqueue_inode_info *info)
 }
 
 static int prepare_timeout(const struct timespec __user *u_abs_timeout,
-			   struct timespec *ts)
+			   struct timespec64 *ts)
 {
-	if (copy_from_user(ts, u_abs_timeout, sizeof(struct timespec)))
+	if (get_timespec64(ts, u_abs_timeout))
 		return -EFAULT;
-	if (!timespec_valid(ts))
+	if (!timespec64_valid(ts))
 		return -EINVAL;
 	return 0;
 }
@@ -962,7 +962,7 @@ static inline void pipelined_receive(struct wake_q_head *wake_q,
 
 static int do_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
 		size_t msg_len, unsigned int msg_prio,
-		struct timespec *ts)
+		struct timespec64 *ts)
 {
 	struct fd f;
 	struct inode *inode;
@@ -979,7 +979,7 @@ static int do_mq_timedsend(mqd_t mqdes, const char __user *u_msg_ptr,
 		return -EINVAL;
 
 	if (ts) {
-		expires = timespec_to_ktime(*ts);
+		expires = timespec64_to_ktime(*ts);
 		timeout = &expires;
 	}
 
@@ -1080,7 +1080,7 @@ out:
 
 static int do_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
 		size_t msg_len, unsigned int __user *u_msg_prio,
-		struct timespec *ts)
+		struct timespec64 *ts)
 {
 	ssize_t ret;
 	struct msg_msg *msg_ptr;
@@ -1092,7 +1092,7 @@ static int do_mq_timedreceive(mqd_t mqdes, char __user *u_msg_ptr,
 	struct posix_msg_tree_node *new_leaf = NULL;
 
 	if (ts) {
-		expires = timespec_to_ktime(*ts);
+		expires = timespec64_to_ktime(*ts);
 		timeout = &expires;
 	}
 
@@ -1184,7 +1184,7 @@ SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes, const char __user *, u_msg_ptr,
 		size_t, msg_len, unsigned int, msg_prio,
 		const struct timespec __user *, u_abs_timeout)
 {
-	struct timespec ts, *p = NULL;
+	struct timespec64 ts, *p = NULL;
 	if (u_abs_timeout) {
 		int res = prepare_timeout(u_abs_timeout, &ts);
 		if (res)
@@ -1198,7 +1198,7 @@ SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes, char __user *, u_msg_ptr,
 		size_t, msg_len, unsigned int __user *, u_msg_prio,
 		const struct timespec __user *, u_abs_timeout)
 {
-	struct timespec ts, *p = NULL;
+	struct timespec64 ts, *p = NULL;
 	if (u_abs_timeout) {
 		int res = prepare_timeout(u_abs_timeout, &ts);
 		if (res)
@@ -1475,11 +1475,11 @@ COMPAT_SYSCALL_DEFINE4(mq_open, const char __user *, u_name,
 }
 
 static int compat_prepare_timeout(const struct compat_timespec __user *p,
-				   struct timespec *ts)
+				   struct timespec64 *ts)
 {
-	if (compat_get_timespec(ts, p))
+	if (compat_get_timespec64(ts, p))
 		return -EFAULT;
-	if (!timespec_valid(ts))
+	if (!timespec64_valid(ts))
 		return -EINVAL;
 	return 0;
 }
@@ -1489,7 +1489,7 @@ COMPAT_SYSCALL_DEFINE5(mq_timedsend, mqd_t, mqdes,
 		       compat_size_t, msg_len, unsigned int, msg_prio,
 		       const struct compat_timespec __user *, u_abs_timeout)
 {
-	struct timespec ts, *p = NULL;
+	struct timespec64 ts, *p = NULL;
 	if (u_abs_timeout) {
 		int res = compat_prepare_timeout(u_abs_timeout, &ts);
 		if (res)
@@ -1504,7 +1504,7 @@ COMPAT_SYSCALL_DEFINE5(mq_timedreceive, mqd_t, mqdes,
 		       compat_size_t, msg_len, unsigned int __user *, u_msg_prio,
 		       const struct compat_timespec __user *, u_abs_timeout)
 {
-	struct timespec ts, *p = NULL;
+	struct timespec64 ts, *p = NULL;
 	if (u_abs_timeout) {
 		int res = compat_prepare_timeout(u_abs_timeout, &ts);
 		if (res)
diff --git a/ipc/msg.c b/ipc/msg.c
index df82bc9a5531..bce7ac1c8099 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/ipc/msg.c
  * Copyright (C) 1992 Krishna Balasubramanian
@@ -133,7 +134,7 @@ static int newque(struct ipc_namespace *ns, struct ipc_params *params)
 	}
 
 	msq->q_stime = msq->q_rtime = 0;
-	msq->q_ctime = get_seconds();
+	msq->q_ctime = ktime_get_real_seconds();
 	msq->q_cbytes = msq->q_qnum = 0;
 	msq->q_qbytes = ns->msg_ctlmnb;
 	msq->q_lspid = msq->q_lrpid = 0;
@@ -361,23 +362,17 @@ copy_msqid_from_user(struct msqid64_ds *out, void __user *buf, int version)
  * NOTE: no locks must be held, the rwsem is taken inside this function.
  */
 static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd,
-		       struct msqid_ds __user *buf, int version)
+			struct msqid64_ds *msqid64)
 {
 	struct kern_ipc_perm *ipcp;
-	struct msqid64_ds uninitialized_var(msqid64);
 	struct msg_queue *msq;
 	int err;
 
-	if (cmd == IPC_SET) {
-		if (copy_msqid_from_user(&msqid64, buf, version))
-			return -EFAULT;
-	}
-
 	down_write(&msg_ids(ns).rwsem);
 	rcu_read_lock();
 
 	ipcp = ipcctl_pre_down_nolock(ns, &msg_ids(ns), msqid, cmd,
-				      &msqid64.msg_perm, msqid64.msg_qbytes);
+				      &msqid64->msg_perm, msqid64->msg_qbytes);
 	if (IS_ERR(ipcp)) {
 		err = PTR_ERR(ipcp);
 		goto out_unlock1;
@@ -399,20 +394,20 @@ static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd,
 	{
 		DEFINE_WAKE_Q(wake_q);
 
-		if (msqid64.msg_qbytes > ns->msg_ctlmnb &&
+		if (msqid64->msg_qbytes > ns->msg_ctlmnb &&
 		    !capable(CAP_SYS_RESOURCE)) {
 			err = -EPERM;
 			goto out_unlock1;
 		}
 
 		ipc_lock_object(&msq->q_perm);
-		err = ipc_update_perm(&msqid64.msg_perm, ipcp);
+		err = ipc_update_perm(&msqid64->msg_perm, ipcp);
 		if (err)
 			goto out_unlock0;
 
-		msq->q_qbytes = msqid64.msg_qbytes;
+		msq->q_qbytes = msqid64->msg_qbytes;
 
-		msq->q_ctime = get_seconds();
+		msq->q_ctime = ktime_get_real_seconds();
 		/*
 		 * Sleeping receivers might be excluded by
 		 * stricter permissions.
@@ -442,111 +437,89 @@ out_up:
 	return err;
 }
 
-static int msgctl_nolock(struct ipc_namespace *ns, int msqid,
-			 int cmd, int version, void __user *buf)
+static int msgctl_info(struct ipc_namespace *ns, int msqid,
+			 int cmd, struct msginfo *msginfo)
 {
 	int err;
-	struct msg_queue *msq;
-
-	switch (cmd) {
-	case IPC_INFO:
-	case MSG_INFO:
-	{
-		struct msginfo msginfo;
-		int max_id;
-
-		if (!buf)
-			return -EFAULT;
-
-		/*
-		 * We must not return kernel stack data.
-		 * due to padding, it's not enough
-		 * to set all member fields.
-		 */
-		err = security_msg_queue_msgctl(NULL, cmd);
-		if (err)
-			return err;
+	int max_id;
 
-		memset(&msginfo, 0, sizeof(msginfo));
-		msginfo.msgmni = ns->msg_ctlmni;
-		msginfo.msgmax = ns->msg_ctlmax;
-		msginfo.msgmnb = ns->msg_ctlmnb;
-		msginfo.msgssz = MSGSSZ;
-		msginfo.msgseg = MSGSEG;
-		down_read(&msg_ids(ns).rwsem);
-		if (cmd == MSG_INFO) {
-			msginfo.msgpool = msg_ids(ns).in_use;
-			msginfo.msgmap = atomic_read(&ns->msg_hdrs);
-			msginfo.msgtql = atomic_read(&ns->msg_bytes);
-		} else {
-			msginfo.msgmap = MSGMAP;
-			msginfo.msgpool = MSGPOOL;
-			msginfo.msgtql = MSGTQL;
-		}
-		max_id = ipc_get_maxid(&msg_ids(ns));
-		up_read(&msg_ids(ns).rwsem);
-		if (copy_to_user(buf, &msginfo, sizeof(struct msginfo)))
-			return -EFAULT;
-		return (max_id < 0) ? 0 : max_id;
+	/*
+	 * We must not return kernel stack data.
+	 * due to padding, it's not enough
+	 * to set all member fields.
+	 */
+	err = security_msg_queue_msgctl(NULL, cmd);
+	if (err)
+		return err;
+
+	memset(msginfo, 0, sizeof(*msginfo));
+	msginfo->msgmni = ns->msg_ctlmni;
+	msginfo->msgmax = ns->msg_ctlmax;
+	msginfo->msgmnb = ns->msg_ctlmnb;
+	msginfo->msgssz = MSGSSZ;
+	msginfo->msgseg = MSGSEG;
+	down_read(&msg_ids(ns).rwsem);
+	if (cmd == MSG_INFO) {
+		msginfo->msgpool = msg_ids(ns).in_use;
+		msginfo->msgmap = atomic_read(&ns->msg_hdrs);
+		msginfo->msgtql = atomic_read(&ns->msg_bytes);
+	} else {
+		msginfo->msgmap = MSGMAP;
+		msginfo->msgpool = MSGPOOL;
+		msginfo->msgtql = MSGTQL;
 	}
+	max_id = ipc_get_maxid(&msg_ids(ns));
+	up_read(&msg_ids(ns).rwsem);
+	return (max_id < 0) ? 0 : max_id;
+}
 
-	case MSG_STAT:
-	case IPC_STAT:
-	{
-		struct msqid64_ds tbuf;
-		int success_return;
-
-		if (!buf)
-			return -EFAULT;
-
-		memset(&tbuf, 0, sizeof(tbuf));
+static int msgctl_stat(struct ipc_namespace *ns, int msqid,
+			 int cmd, struct msqid64_ds *p)
+{
+	int err;
+	struct msg_queue *msq;
+	int success_return;
 
-		rcu_read_lock();
-		if (cmd == MSG_STAT) {
-			msq = msq_obtain_object(ns, msqid);
-			if (IS_ERR(msq)) {
-				err = PTR_ERR(msq);
-				goto out_unlock;
-			}
-			success_return = msq->q_perm.id;
-		} else {
-			msq = msq_obtain_object_check(ns, msqid);
-			if (IS_ERR(msq)) {
-				err = PTR_ERR(msq);
-				goto out_unlock;
-			}
-			success_return = 0;
-		}
+	memset(p, 0, sizeof(*p));
 
-		err = -EACCES;
-		if (ipcperms(ns, &msq->q_perm, S_IRUGO))
+	rcu_read_lock();
+	if (cmd == MSG_STAT) {
+		msq = msq_obtain_object(ns, msqid);
+		if (IS_ERR(msq)) {
+			err = PTR_ERR(msq);
 			goto out_unlock;
-
-		err = security_msg_queue_msgctl(msq, cmd);
-		if (err)
+		}
+		success_return = msq->q_perm.id;
+	} else {
+		msq = msq_obtain_object_check(ns, msqid);
+		if (IS_ERR(msq)) {
+			err = PTR_ERR(msq);
 			goto out_unlock;
+		}
+		success_return = 0;
+	}
 
-		kernel_to_ipc64_perm(&msq->q_perm, &tbuf.msg_perm);
-		tbuf.msg_stime  = msq->q_stime;
-		tbuf.msg_rtime  = msq->q_rtime;
-		tbuf.msg_ctime  = msq->q_ctime;
-		tbuf.msg_cbytes = msq->q_cbytes;
-		tbuf.msg_qnum   = msq->q_qnum;
-		tbuf.msg_qbytes = msq->q_qbytes;
-		tbuf.msg_lspid  = msq->q_lspid;
-		tbuf.msg_lrpid  = msq->q_lrpid;
-		rcu_read_unlock();
+	err = -EACCES;
+	if (ipcperms(ns, &msq->q_perm, S_IRUGO))
+		goto out_unlock;
 
-		if (copy_msqid_to_user(buf, &tbuf, version))
-			return -EFAULT;
-		return success_return;
-	}
+	err = security_msg_queue_msgctl(msq, cmd);
+	if (err)
+		goto out_unlock;
+
+	kernel_to_ipc64_perm(&msq->q_perm, &p->msg_perm);
+	p->msg_stime  = msq->q_stime;
+	p->msg_rtime  = msq->q_rtime;
+	p->msg_ctime  = msq->q_ctime;
+	p->msg_cbytes = msq->q_cbytes;
+	p->msg_qnum   = msq->q_qnum;
+	p->msg_qbytes = msq->q_qbytes;
+	p->msg_lspid  = msq->q_lspid;
+	p->msg_lrpid  = msq->q_lrpid;
+	rcu_read_unlock();
 
-	default:
-		return -EINVAL;
-	}
+	return success_return;
 
-	return err;
 out_unlock:
 	rcu_read_unlock();
 	return err;
@@ -556,6 +529,8 @@ SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
 {
 	int version;
 	struct ipc_namespace *ns;
+	struct msqid64_ds msqid64;
+	int err;
 
 	if (msqid < 0 || cmd < 0)
 		return -EINVAL;
@@ -565,18 +540,147 @@ SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)
 
 	switch (cmd) {
 	case IPC_INFO:
-	case MSG_INFO:
+	case MSG_INFO: {
+		struct msginfo msginfo;
+		err = msgctl_info(ns, msqid, cmd, &msginfo);
+		if (err < 0)
+			return err;
+		if (copy_to_user(buf, &msginfo, sizeof(struct msginfo)))
+			err = -EFAULT;
+		return err;
+	}
 	case MSG_STAT:	/* msqid is an index rather than a msg queue id */
 	case IPC_STAT:
-		return msgctl_nolock(ns, msqid, cmd, version, buf);
+		err = msgctl_stat(ns, msqid, cmd, &msqid64);
+		if (err < 0)
+			return err;
+		if (copy_msqid_to_user(buf, &msqid64, version))
+			err = -EFAULT;
+		return err;
 	case IPC_SET:
+		if (copy_msqid_from_user(&msqid64, buf, version))
+			return -EFAULT;
+		/* fallthru */
 	case IPC_RMID:
-		return msgctl_down(ns, msqid, cmd, buf, version);
+		return msgctl_down(ns, msqid, cmd, &msqid64);
 	default:
 		return  -EINVAL;
 	}
 }
 
+#ifdef CONFIG_COMPAT
+
+struct compat_msqid_ds {
+	struct compat_ipc_perm msg_perm;
+	compat_uptr_t msg_first;
+	compat_uptr_t msg_last;
+	compat_time_t msg_stime;
+	compat_time_t msg_rtime;
+	compat_time_t msg_ctime;
+	compat_ulong_t msg_lcbytes;
+	compat_ulong_t msg_lqbytes;
+	unsigned short msg_cbytes;
+	unsigned short msg_qnum;
+	unsigned short msg_qbytes;
+	compat_ipc_pid_t msg_lspid;
+	compat_ipc_pid_t msg_lrpid;
+};
+
+static int copy_compat_msqid_from_user(struct msqid64_ds *out, void __user *buf,
+					int version)
+{
+	memset(out, 0, sizeof(*out));
+	if (version == IPC_64) {
+		struct compat_msqid64_ds *p = buf;
+		if (get_compat_ipc64_perm(&out->msg_perm, &p->msg_perm))
+			return -EFAULT;
+		if (get_user(out->msg_qbytes, &p->msg_qbytes))
+			return -EFAULT;
+	} else {
+		struct compat_msqid_ds *p = buf;
+		if (get_compat_ipc_perm(&out->msg_perm, &p->msg_perm))
+			return -EFAULT;
+		if (get_user(out->msg_qbytes, &p->msg_qbytes))
+			return -EFAULT;
+	}
+	return 0;
+}
+
+static int copy_compat_msqid_to_user(void __user *buf, struct msqid64_ds *in,
+					int version)
+{
+	if (version == IPC_64) {
+		struct compat_msqid64_ds v;
+		memset(&v, 0, sizeof(v));
+		to_compat_ipc64_perm(&v.msg_perm, &in->msg_perm);
+		v.msg_stime = in->msg_stime;
+		v.msg_rtime = in->msg_rtime;
+		v.msg_ctime = in->msg_ctime;
+		v.msg_cbytes = in->msg_cbytes;
+		v.msg_qnum = in->msg_qnum;
+		v.msg_qbytes = in->msg_qbytes;
+		v.msg_lspid = in->msg_lspid;
+		v.msg_lrpid = in->msg_lrpid;
+		return copy_to_user(buf, &v, sizeof(v));
+	} else {
+		struct compat_msqid_ds v;
+		memset(&v, 0, sizeof(v));
+		to_compat_ipc_perm(&v.msg_perm, &in->msg_perm);
+		v.msg_stime = in->msg_stime;
+		v.msg_rtime = in->msg_rtime;
+		v.msg_ctime = in->msg_ctime;
+		v.msg_cbytes = in->msg_cbytes;
+		v.msg_qnum = in->msg_qnum;
+		v.msg_qbytes = in->msg_qbytes;
+		v.msg_lspid = in->msg_lspid;
+		v.msg_lrpid = in->msg_lrpid;
+		return copy_to_user(buf, &v, sizeof(v));
+	}
+}
+
+COMPAT_SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, void __user *, uptr)
+{
+	struct ipc_namespace *ns;
+	int err;
+	struct msqid64_ds msqid64;
+	int version = compat_ipc_parse_version(&cmd);
+
+	ns = current->nsproxy->ipc_ns;
+
+	if (msqid < 0 || cmd < 0)
+		return -EINVAL;
+
+	switch (cmd & (~IPC_64)) {
+	case IPC_INFO:
+	case MSG_INFO: {
+		struct msginfo msginfo;
+		err = msgctl_info(ns, msqid, cmd, &msginfo);
+		if (err < 0)
+			return err;
+		if (copy_to_user(uptr, &msginfo, sizeof(struct msginfo)))
+			err = -EFAULT;
+		return err;
+	}
+	case IPC_STAT:
+	case MSG_STAT:
+		err = msgctl_stat(ns, msqid, cmd, &msqid64);
+		if (err < 0)
+			return err;
+		if (copy_compat_msqid_to_user(uptr, &msqid64, version))
+			err = -EFAULT;
+		return err;
+	case IPC_SET:
+		if (copy_compat_msqid_from_user(&msqid64, uptr, version))
+			return -EFAULT;
+		/* fallthru */
+	case IPC_RMID:
+		return msgctl_down(ns, msqid, cmd, &msqid64);
+	default:
+		return -EINVAL;
+	}
+}
+#endif
+
 static int testmsg(struct msg_msg *msg, long type, int mode)
 {
 	switch (mode) {
@@ -627,7 +731,7 @@ static inline int pipelined_send(struct msg_queue *msq, struct msg_msg *msg,
 	return 0;
 }
 
-long do_msgsnd(int msqid, long mtype, void __user *mtext,
+static long do_msgsnd(int msqid, long mtype, void __user *mtext,
 		size_t msgsz, int msgflg)
 {
 	struct msg_queue *msq;
@@ -750,6 +854,25 @@ SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,
 	return do_msgsnd(msqid, mtype, msgp->mtext, msgsz, msgflg);
 }
 
+#ifdef CONFIG_COMPAT
+
+struct compat_msgbuf {
+	compat_long_t mtype;
+	char mtext[1];
+};
+
+COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,
+		       compat_ssize_t, msgsz, int, msgflg)
+{
+	struct compat_msgbuf __user *up = compat_ptr(msgp);
+	compat_long_t mtype;
+
+	if (get_user(mtype, &up->mtype))
+		return -EFAULT;
+	return do_msgsnd(msqid, mtype, up->mtext, (ssize_t)msgsz, msgflg);
+}
+#endif
+
 static inline int convert_mode(long *msgtyp, int msgflg)
 {
 	if (msgflg & MSG_COPY)
@@ -846,7 +969,7 @@ static struct msg_msg *find_msg(struct msg_queue *msq, long *msgtyp, int mode)
 	return found ?: ERR_PTR(-EAGAIN);
 }
 
-long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg,
+static long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg,
 	       long (*msg_handler)(void __user *, struct msg_msg *, size_t))
 {
 	int mode;
@@ -1010,6 +1133,28 @@ SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,
 	return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg, do_msg_fill);
 }
 
+#ifdef CONFIG_COMPAT
+static long compat_do_msg_fill(void __user *dest, struct msg_msg *msg, size_t bufsz)
+{
+	struct compat_msgbuf __user *msgp = dest;
+	size_t msgsz;
+
+	if (put_user(msg->m_type, &msgp->mtype))
+		return -EFAULT;
+
+	msgsz = (bufsz > msg->m_ts) ? msg->m_ts : bufsz;
+	if (store_msg(msgp->mtext, msg, msgsz))
+		return -EFAULT;
+	return msgsz;
+}
+
+COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,
+		       compat_ssize_t, msgsz, compat_long_t, msgtyp, int, msgflg)
+{
+	return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,
+			 msgflg, compat_do_msg_fill);
+}
+#endif
 
 int msg_init_ns(struct ipc_namespace *ns)
 {
@@ -1039,7 +1184,7 @@ static int sysvipc_msg_proc_show(struct seq_file *s, void *it)
 	struct msg_queue *msq = container_of(ipcp, struct msg_queue, q_perm);
 
 	seq_printf(s,
-		   "%10d %10d  %4o  %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
+		   "%10d %10d  %4o  %10lu %10lu %5u %5u %5u %5u %5u %5u %10llu %10llu %10llu\n",
 		   msq->q_perm.key,
 		   msq->q_perm.id,
 		   msq->q_perm.mode,
diff --git a/ipc/namespace.c b/ipc/namespace.c
index fc850c526698..f59a89966f92 100644
--- a/ipc/namespace.c
+++ b/ipc/namespace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/ipc/namespace.c
  * Copyright (C) 2006 Pavel Emelyanov <xemul@openvz.org> OpenVZ, SWsoft Inc.
diff --git a/ipc/sem.c b/ipc/sem.c
index 013c7981f3c7..b2698ebdcb31 100644
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/ipc/sem.c
  * Copyright (C) 1992 Krishna Balasubramanian
@@ -512,7 +513,7 @@ static int newary(struct ipc_namespace *ns, struct ipc_params *params)
 	INIT_LIST_HEAD(&sma->pending_const);
 	INIT_LIST_HEAD(&sma->list_id);
 	sma->sem_nsems = nsems;
-	sma->sem_ctime = get_seconds();
+	sma->sem_ctime = ktime_get_real_seconds();
 
 	retval = ipc_addid(&sem_ids(ns), &sma->sem_perm, ns->sc_semmni);
 	if (retval < 0) {
@@ -1163,14 +1164,14 @@ static unsigned long copy_semid_to_user(void __user *buf, struct semid64_ds *in,
 	}
 }
 
-static time_t get_semotime(struct sem_array *sma)
+static time64_t get_semotime(struct sem_array *sma)
 {
 	int i;
-	time_t res;
+	time64_t res;
 
 	res = sma->sems[0].sem_otime;
 	for (i = 1; i < sma->sem_nsems; i++) {
-		time_t to = sma->sems[i].sem_otime;
+		time64_t to = sma->sems[i].sem_otime;
 
 		if (to > res)
 			res = to;
@@ -1178,112 +1179,95 @@ static time_t get_semotime(struct sem_array *sma)
 	return res;
 }
 
-static int semctl_nolock(struct ipc_namespace *ns, int semid,
-			 int cmd, int version, void __user *p)
+static int semctl_stat(struct ipc_namespace *ns, int semid,
+			 int cmd, struct semid64_ds *semid64)
 {
-	int err;
 	struct sem_array *sma;
+	int id = 0;
+	int err;
 
-	switch (cmd) {
-	case IPC_INFO:
-	case SEM_INFO:
-	{
-		struct seminfo seminfo;
-		int max_id;
-
-		err = security_sem_semctl(NULL, cmd);
-		if (err)
-			return err;
+	memset(semid64, 0, sizeof(*semid64));
 
-		memset(&seminfo, 0, sizeof(seminfo));
-		seminfo.semmni = ns->sc_semmni;
-		seminfo.semmns = ns->sc_semmns;
-		seminfo.semmsl = ns->sc_semmsl;
-		seminfo.semopm = ns->sc_semopm;
-		seminfo.semvmx = SEMVMX;
-		seminfo.semmnu = SEMMNU;
-		seminfo.semmap = SEMMAP;
-		seminfo.semume = SEMUME;
-		down_read(&sem_ids(ns).rwsem);
-		if (cmd == SEM_INFO) {
-			seminfo.semusz = sem_ids(ns).in_use;
-			seminfo.semaem = ns->used_sems;
-		} else {
-			seminfo.semusz = SEMUSZ;
-			seminfo.semaem = SEMAEM;
+	rcu_read_lock();
+	if (cmd == SEM_STAT) {
+		sma = sem_obtain_object(ns, semid);
+		if (IS_ERR(sma)) {
+			err = PTR_ERR(sma);
+			goto out_unlock;
+		}
+		id = sma->sem_perm.id;
+	} else {
+		sma = sem_obtain_object_check(ns, semid);
+		if (IS_ERR(sma)) {
+			err = PTR_ERR(sma);
+			goto out_unlock;
 		}
-		max_id = ipc_get_maxid(&sem_ids(ns));
-		up_read(&sem_ids(ns).rwsem);
-		if (copy_to_user(p, &seminfo, sizeof(struct seminfo)))
-			return -EFAULT;
-		return (max_id < 0) ? 0 : max_id;
 	}
-	case IPC_STAT:
-	case SEM_STAT:
-	{
-		struct semid64_ds tbuf;
-		int id = 0;
-
-		memset(&tbuf, 0, sizeof(tbuf));
 
-		rcu_read_lock();
-		if (cmd == SEM_STAT) {
-			sma = sem_obtain_object(ns, semid);
-			if (IS_ERR(sma)) {
-				err = PTR_ERR(sma);
-				goto out_unlock;
-			}
-			id = sma->sem_perm.id;
-		} else {
-			sma = sem_obtain_object_check(ns, semid);
-			if (IS_ERR(sma)) {
-				err = PTR_ERR(sma);
-				goto out_unlock;
-			}
-		}
+	err = -EACCES;
+	if (ipcperms(ns, &sma->sem_perm, S_IRUGO))
+		goto out_unlock;
 
-		err = -EACCES;
-		if (ipcperms(ns, &sma->sem_perm, S_IRUGO))
-			goto out_unlock;
+	err = security_sem_semctl(sma, cmd);
+	if (err)
+		goto out_unlock;
 
-		err = security_sem_semctl(sma, cmd);
-		if (err)
-			goto out_unlock;
+	kernel_to_ipc64_perm(&sma->sem_perm, &semid64->sem_perm);
+	semid64->sem_otime = get_semotime(sma);
+	semid64->sem_ctime = sma->sem_ctime;
+	semid64->sem_nsems = sma->sem_nsems;
+	rcu_read_unlock();
+	return id;
 
-		kernel_to_ipc64_perm(&sma->sem_perm, &tbuf.sem_perm);
-		tbuf.sem_otime = get_semotime(sma);
-		tbuf.sem_ctime = sma->sem_ctime;
-		tbuf.sem_nsems = sma->sem_nsems;
-		rcu_read_unlock();
-		if (copy_semid_to_user(p, &tbuf, version))
-			return -EFAULT;
-		return id;
-	}
-	default:
-		return -EINVAL;
-	}
 out_unlock:
 	rcu_read_unlock();
 	return err;
 }
 
+static int semctl_info(struct ipc_namespace *ns, int semid,
+			 int cmd, void __user *p)
+{
+	struct seminfo seminfo;
+	int max_id;
+	int err;
+
+	err = security_sem_semctl(NULL, cmd);
+	if (err)
+		return err;
+
+	memset(&seminfo, 0, sizeof(seminfo));
+	seminfo.semmni = ns->sc_semmni;
+	seminfo.semmns = ns->sc_semmns;
+	seminfo.semmsl = ns->sc_semmsl;
+	seminfo.semopm = ns->sc_semopm;
+	seminfo.semvmx = SEMVMX;
+	seminfo.semmnu = SEMMNU;
+	seminfo.semmap = SEMMAP;
+	seminfo.semume = SEMUME;
+	down_read(&sem_ids(ns).rwsem);
+	if (cmd == SEM_INFO) {
+		seminfo.semusz = sem_ids(ns).in_use;
+		seminfo.semaem = ns->used_sems;
+	} else {
+		seminfo.semusz = SEMUSZ;
+		seminfo.semaem = SEMAEM;
+	}
+	max_id = ipc_get_maxid(&sem_ids(ns));
+	up_read(&sem_ids(ns).rwsem);
+	if (copy_to_user(p, &seminfo, sizeof(struct seminfo)))
+		return -EFAULT;
+	return (max_id < 0) ? 0 : max_id;
+}
+
 static int semctl_setval(struct ipc_namespace *ns, int semid, int semnum,
-		unsigned long arg)
+		int val)
 {
 	struct sem_undo *un;
 	struct sem_array *sma;
 	struct sem *curr;
-	int err, val;
+	int err;
 	DEFINE_WAKE_Q(wake_q);
 
-#if defined(CONFIG_64BIT) && defined(__BIG_ENDIAN)
-	/* big-endian 64bit */
-	val = arg >> 32;
-#else
-	/* 32bit or little-endian 64bit */
-	val = arg;
-#endif
-
 	if (val > SEMVMX || val < 0)
 		return -ERANGE;
 
@@ -1327,7 +1311,7 @@ static int semctl_setval(struct ipc_namespace *ns, int semid, int semnum,
 
 	curr->semval = val;
 	curr->sempid = task_tgid_vnr(current);
-	sma->sem_ctime = get_seconds();
+	sma->sem_ctime = ktime_get_real_seconds();
 	/* maybe some queued-up processes were waiting for this */
 	do_smart_update(sma, NULL, 0, 0, &wake_q);
 	sem_unlock(sma, -1);
@@ -1455,7 +1439,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
 			for (i = 0; i < nsems; i++)
 				un->semadj[i] = 0;
 		}
-		sma->sem_ctime = get_seconds();
+		sma->sem_ctime = ktime_get_real_seconds();
 		/* maybe some queued-up processes were waiting for this */
 		do_smart_update(sma, NULL, 0, 0, &wake_q);
 		err = 0;
@@ -1532,23 +1516,17 @@ copy_semid_from_user(struct semid64_ds *out, void __user *buf, int version)
  * NOTE: no locks must be held, the rwsem is taken inside this function.
  */
 static int semctl_down(struct ipc_namespace *ns, int semid,
-		       int cmd, int version, void __user *p)
+		       int cmd, struct semid64_ds *semid64)
 {
 	struct sem_array *sma;
 	int err;
-	struct semid64_ds semid64;
 	struct kern_ipc_perm *ipcp;
 
-	if (cmd == IPC_SET) {
-		if (copy_semid_from_user(&semid64, p, version))
-			return -EFAULT;
-	}
-
 	down_write(&sem_ids(ns).rwsem);
 	rcu_read_lock();
 
 	ipcp = ipcctl_pre_down_nolock(ns, &sem_ids(ns), semid, cmd,
-				      &semid64.sem_perm, 0);
+				      &semid64->sem_perm, 0);
 	if (IS_ERR(ipcp)) {
 		err = PTR_ERR(ipcp);
 		goto out_unlock1;
@@ -1568,10 +1546,10 @@ static int semctl_down(struct ipc_namespace *ns, int semid,
 		goto out_up;
 	case IPC_SET:
 		sem_lock(sma, NULL, -1);
-		err = ipc_update_perm(&semid64.sem_perm, ipcp);
+		err = ipc_update_perm(&semid64->sem_perm, ipcp);
 		if (err)
 			goto out_unlock0;
-		sma->sem_ctime = get_seconds();
+		sma->sem_ctime = ktime_get_real_seconds();
 		break;
 	default:
 		err = -EINVAL;
@@ -1592,6 +1570,8 @@ SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, unsigned long, arg)
 	int version;
 	struct ipc_namespace *ns;
 	void __user *p = (void __user *)arg;
+	struct semid64_ds semid64;
+	int err;
 
 	if (semid < 0)
 		return -EINVAL;
@@ -1602,9 +1582,15 @@ SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, unsigned long, arg)
 	switch (cmd) {
 	case IPC_INFO:
 	case SEM_INFO:
+		return semctl_info(ns, semid, cmd, p);
 	case IPC_STAT:
 	case SEM_STAT:
-		return semctl_nolock(ns, semid, cmd, version, p);
+		err = semctl_stat(ns, semid, cmd, &semid64);
+		if (err < 0)
+			return err;
+		if (copy_semid_to_user(p, &semid64, version))
+			err = -EFAULT;
+		return err;
 	case GETALL:
 	case GETVAL:
 	case GETPID:
@@ -1612,15 +1598,120 @@ SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, unsigned long, arg)
 	case GETZCNT:
 	case SETALL:
 		return semctl_main(ns, semid, semnum, cmd, p);
+	case SETVAL: {
+		int val;
+#if defined(CONFIG_64BIT) && defined(__BIG_ENDIAN)
+		/* big-endian 64bit */
+		val = arg >> 32;
+#else
+		/* 32bit or little-endian 64bit */
+		val = arg;
+#endif
+		return semctl_setval(ns, semid, semnum, val);
+	}
+	case IPC_SET:
+		if (copy_semid_from_user(&semid64, p, version))
+			return -EFAULT;
+	case IPC_RMID:
+		return semctl_down(ns, semid, cmd, &semid64);
+	default:
+		return -EINVAL;
+	}
+}
+
+#ifdef CONFIG_COMPAT
+
+struct compat_semid_ds {
+	struct compat_ipc_perm sem_perm;
+	compat_time_t sem_otime;
+	compat_time_t sem_ctime;
+	compat_uptr_t sem_base;
+	compat_uptr_t sem_pending;
+	compat_uptr_t sem_pending_last;
+	compat_uptr_t undo;
+	unsigned short sem_nsems;
+};
+
+static int copy_compat_semid_from_user(struct semid64_ds *out, void __user *buf,
+					int version)
+{
+	memset(out, 0, sizeof(*out));
+	if (version == IPC_64) {
+		struct compat_semid64_ds *p = buf;
+		return get_compat_ipc64_perm(&out->sem_perm, &p->sem_perm);
+	} else {
+		struct compat_semid_ds *p = buf;
+		return get_compat_ipc_perm(&out->sem_perm, &p->sem_perm);
+	}
+}
+
+static int copy_compat_semid_to_user(void __user *buf, struct semid64_ds *in,
+					int version)
+{
+	if (version == IPC_64) {
+		struct compat_semid64_ds v;
+		memset(&v, 0, sizeof(v));
+		to_compat_ipc64_perm(&v.sem_perm, &in->sem_perm);
+		v.sem_otime = in->sem_otime;
+		v.sem_ctime = in->sem_ctime;
+		v.sem_nsems = in->sem_nsems;
+		return copy_to_user(buf, &v, sizeof(v));
+	} else {
+		struct compat_semid_ds v;
+		memset(&v, 0, sizeof(v));
+		to_compat_ipc_perm(&v.sem_perm, &in->sem_perm);
+		v.sem_otime = in->sem_otime;
+		v.sem_ctime = in->sem_ctime;
+		v.sem_nsems = in->sem_nsems;
+		return copy_to_user(buf, &v, sizeof(v));
+	}
+}
+
+COMPAT_SYSCALL_DEFINE4(semctl, int, semid, int, semnum, int, cmd, int, arg)
+{
+	void __user *p = compat_ptr(arg);
+	struct ipc_namespace *ns;
+	struct semid64_ds semid64;
+	int version = compat_ipc_parse_version(&cmd);
+	int err;
+
+	ns = current->nsproxy->ipc_ns;
+
+	if (semid < 0)
+		return -EINVAL;
+
+	switch (cmd & (~IPC_64)) {
+	case IPC_INFO:
+	case SEM_INFO:
+		return semctl_info(ns, semid, cmd, p);
+	case IPC_STAT:
+	case SEM_STAT:
+		err = semctl_stat(ns, semid, cmd, &semid64);
+		if (err < 0)
+			return err;
+		if (copy_compat_semid_to_user(p, &semid64, version))
+			err = -EFAULT;
+		return err;
+	case GETVAL:
+	case GETPID:
+	case GETNCNT:
+	case GETZCNT:
+	case GETALL:
+	case SETALL:
+		return semctl_main(ns, semid, semnum, cmd, p);
 	case SETVAL:
 		return semctl_setval(ns, semid, semnum, arg);
-	case IPC_RMID:
 	case IPC_SET:
-		return semctl_down(ns, semid, cmd, version, p);
+		if (copy_compat_semid_from_user(&semid64, p, version))
+			return -EFAULT;
+		/* fallthru */
+	case IPC_RMID:
+		return semctl_down(ns, semid, cmd, &semid64);
 	default:
 		return -EINVAL;
 	}
 }
+#endif
 
 /* If the task doesn't already have a undo_list, then allocate one
  * here.  We guarantee there is only one thread using this undo list,
@@ -1766,8 +1857,8 @@ out:
 	return un;
 }
 
-SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
-		unsigned, nsops, const struct timespec __user *, timeout)
+static long do_semtimedop(int semid, struct sembuf __user *tsops,
+		unsigned nsops, const struct timespec64 *timeout)
 {
 	int error = -EINVAL;
 	struct sem_array *sma;
@@ -1798,17 +1889,12 @@ SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
 	}
 
 	if (timeout) {
-		struct timespec _timeout;
-		if (copy_from_user(&_timeout, timeout, sizeof(*timeout))) {
-			error = -EFAULT;
-			goto out_free;
-		}
-		if (_timeout.tv_sec < 0 || _timeout.tv_nsec < 0 ||
-			_timeout.tv_nsec >= 1000000000L) {
+		if (timeout->tv_sec < 0 || timeout->tv_nsec < 0 ||
+			timeout->tv_nsec >= 1000000000L) {
 			error = -EINVAL;
 			goto out_free;
 		}
-		jiffies_left = timespec_to_jiffies(&_timeout);
+		jiffies_left = timespec64_to_jiffies(timeout);
 	}
 
 	max = 0;
@@ -2023,10 +2109,37 @@ out_free:
 	return error;
 }
 
+SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsops,
+		unsigned, nsops, const struct timespec __user *, timeout)
+{
+	if (timeout) {
+		struct timespec64 ts;
+		if (get_timespec64(&ts, timeout))
+			return -EFAULT;
+		return do_semtimedop(semid, tsops, nsops, &ts);
+	}
+	return do_semtimedop(semid, tsops, nsops, NULL);
+}
+
+#ifdef CONFIG_COMPAT
+COMPAT_SYSCALL_DEFINE4(semtimedop, int, semid, struct sembuf __user *, tsems,
+		       unsigned, nsops,
+		       const struct compat_timespec __user *, timeout)
+{
+	if (timeout) {
+		struct timespec64 ts;
+		if (compat_get_timespec64(&ts, timeout))
+			return -EFAULT;
+		return do_semtimedop(semid, tsems, nsops, &ts);
+	}
+	return do_semtimedop(semid, tsems, nsops, NULL);
+}
+#endif
+
 SYSCALL_DEFINE3(semop, int, semid, struct sembuf __user *, tsops,
 		unsigned, nsops)
 {
-	return sys_semtimedop(semid, tsops, nsops, NULL);
+	return do_semtimedop(semid, tsops, nsops, NULL);
 }
 
 /* If CLONE_SYSVSEM is set, establish sharing of SEM_UNDO state between
@@ -2183,7 +2296,7 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it)
 	struct user_namespace *user_ns = seq_user_ns(s);
 	struct kern_ipc_perm *ipcp = it;
 	struct sem_array *sma = container_of(ipcp, struct sem_array, sem_perm);
-	time_t sem_otime;
+	time64_t sem_otime;
 
 	/*
 	 * The proc interface isn't aware of sem_lock(), it calls
@@ -2196,7 +2309,7 @@ static int sysvipc_sem_proc_show(struct seq_file *s, void *it)
 	sem_otime = get_semotime(sma);
 
 	seq_printf(s,
-		   "%10d %10d  %4o %10u %5u %5u %5u %5u %10lu %10lu\n",
+		   "%10d %10d  %4o %10u %5u %5u %5u %5u %10llu %10llu\n",
 		   sma->sem_perm.key,
 		   sma->sem_perm.id,
 		   sma->sem_perm.mode,
diff --git a/ipc/shm.c b/ipc/shm.c
index 8fc97beb5234..bd652755d32c 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/ipc/shm.c
  * Copyright (C) 1992, 1993 Krishna Balasubramanian
@@ -202,7 +203,7 @@ static int __shm_open(struct vm_area_struct *vma)
 	if (IS_ERR(shp))
 		return PTR_ERR(shp);
 
-	shp->shm_atim = get_seconds();
+	shp->shm_atim = ktime_get_real_seconds();
 	shp->shm_lprid = task_tgid_vnr(current);
 	shp->shm_nattch++;
 	shm_unlock(shp);
@@ -289,7 +290,7 @@ static void shm_close(struct vm_area_struct *vma)
 		goto done; /* no-op */
 
 	shp->shm_lprid = task_tgid_vnr(current);
-	shp->shm_dtim = get_seconds();
+	shp->shm_dtim = ktime_get_real_seconds();
 	shp->shm_nattch--;
 	if (shm_may_destroy(ns, shp))
 		shm_destroy(ns, shp);
@@ -594,7 +595,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
 	shp->shm_cprid = task_tgid_vnr(current);
 	shp->shm_lprid = 0;
 	shp->shm_atim = shp->shm_dtim = 0;
-	shp->shm_ctim = get_seconds();
+	shp->shm_ctim = ktime_get_real_seconds();
 	shp->shm_segsz = size;
 	shp->shm_nattch = 0;
 	shp->shm_file = file;
@@ -815,23 +816,17 @@ static void shm_get_stat(struct ipc_namespace *ns, unsigned long *rss,
  * NOTE: no locks must be held, the rwsem is taken inside this function.
  */
 static int shmctl_down(struct ipc_namespace *ns, int shmid, int cmd,
-		       struct shmid_ds __user *buf, int version)
+		       struct shmid64_ds *shmid64)
 {
 	struct kern_ipc_perm *ipcp;
-	struct shmid64_ds shmid64;
 	struct shmid_kernel *shp;
 	int err;
 
-	if (cmd == IPC_SET) {
-		if (copy_shmid_from_user(&shmid64, buf, version))
-			return -EFAULT;
-	}
-
 	down_write(&shm_ids(ns).rwsem);
 	rcu_read_lock();
 
 	ipcp = ipcctl_pre_down_nolock(ns, &shm_ids(ns), shmid, cmd,
-				      &shmid64.shm_perm, 0);
+				      &shmid64->shm_perm, 0);
 	if (IS_ERR(ipcp)) {
 		err = PTR_ERR(ipcp);
 		goto out_unlock1;
@@ -851,10 +846,10 @@ static int shmctl_down(struct ipc_namespace *ns, int shmid, int cmd,
 		goto out_up;
 	case IPC_SET:
 		ipc_lock_object(&shp->shm_perm);
-		err = ipc_update_perm(&shmid64.shm_perm, ipcp);
+		err = ipc_update_perm(&shmid64->shm_perm, ipcp);
 		if (err)
 			goto out_unlock0;
-		shp->shm_ctim = get_seconds();
+		shp->shm_ctim = ktime_get_real_seconds();
 		break;
 	default:
 		err = -EINVAL;
@@ -870,125 +865,175 @@ out_up:
 	return err;
 }
 
-static int shmctl_nolock(struct ipc_namespace *ns, int shmid,
-			 int cmd, int version, void __user *buf)
+static int shmctl_ipc_info(struct ipc_namespace *ns,
+			   struct shminfo64 *shminfo)
 {
-	int err;
-	struct shmid_kernel *shp;
-
-	/* preliminary security checks for *_INFO */
-	if (cmd == IPC_INFO || cmd == SHM_INFO) {
-		err = security_shm_shmctl(NULL, cmd);
-		if (err)
-			return err;
-	}
-
-	switch (cmd) {
-	case IPC_INFO:
-	{
-		struct shminfo64 shminfo;
-
-		memset(&shminfo, 0, sizeof(shminfo));
-		shminfo.shmmni = shminfo.shmseg = ns->shm_ctlmni;
-		shminfo.shmmax = ns->shm_ctlmax;
-		shminfo.shmall = ns->shm_ctlall;
-
-		shminfo.shmmin = SHMMIN;
-		if (copy_shminfo_to_user(buf, &shminfo, version))
-			return -EFAULT;
-
+	int err = security_shm_shmctl(NULL, IPC_INFO);
+	if (!err) {
+		memset(shminfo, 0, sizeof(*shminfo));
+		shminfo->shmmni = shminfo->shmseg = ns->shm_ctlmni;
+		shminfo->shmmax = ns->shm_ctlmax;
+		shminfo->shmall = ns->shm_ctlall;
+		shminfo->shmmin = SHMMIN;
 		down_read(&shm_ids(ns).rwsem);
 		err = ipc_get_maxid(&shm_ids(ns));
 		up_read(&shm_ids(ns).rwsem);
-
 		if (err < 0)
 			err = 0;
-		goto out;
 	}
-	case SHM_INFO:
-	{
-		struct shm_info shm_info;
+	return err;
+}
 
-		memset(&shm_info, 0, sizeof(shm_info));
+static int shmctl_shm_info(struct ipc_namespace *ns,
+			   struct shm_info *shm_info)
+{
+	int err = security_shm_shmctl(NULL, SHM_INFO);
+	if (!err) {
+		memset(shm_info, 0, sizeof(*shm_info));
 		down_read(&shm_ids(ns).rwsem);
-		shm_info.used_ids = shm_ids(ns).in_use;
-		shm_get_stat(ns, &shm_info.shm_rss, &shm_info.shm_swp);
-		shm_info.shm_tot = ns->shm_tot;
-		shm_info.swap_attempts = 0;
-		shm_info.swap_successes = 0;
+		shm_info->used_ids = shm_ids(ns).in_use;
+		shm_get_stat(ns, &shm_info->shm_rss, &shm_info->shm_swp);
+		shm_info->shm_tot = ns->shm_tot;
+		shm_info->swap_attempts = 0;
+		shm_info->swap_successes = 0;
 		err = ipc_get_maxid(&shm_ids(ns));
 		up_read(&shm_ids(ns).rwsem);
-		if (copy_to_user(buf, &shm_info, sizeof(shm_info))) {
-			err = -EFAULT;
-			goto out;
+		if (err < 0)
+			err = 0;
+	}
+	return err;
+}
+
+static int shmctl_stat(struct ipc_namespace *ns, int shmid,
+			int cmd, struct shmid64_ds *tbuf)
+{
+	struct shmid_kernel *shp;
+	int result;
+	int err;
+
+	rcu_read_lock();
+	if (cmd == SHM_STAT) {
+		shp = shm_obtain_object(ns, shmid);
+		if (IS_ERR(shp)) {
+			err = PTR_ERR(shp);
+			goto out_unlock;
+		}
+		result = shp->shm_perm.id;
+	} else {
+		shp = shm_obtain_object_check(ns, shmid);
+		if (IS_ERR(shp)) {
+			err = PTR_ERR(shp);
+			goto out_unlock;
 		}
+		result = 0;
+	}
 
-		err = err < 0 ? 0 : err;
-		goto out;
+	err = -EACCES;
+	if (ipcperms(ns, &shp->shm_perm, S_IRUGO))
+		goto out_unlock;
+
+	err = security_shm_shmctl(shp, cmd);
+	if (err)
+		goto out_unlock;
+
+	memset(tbuf, 0, sizeof(*tbuf));
+	kernel_to_ipc64_perm(&shp->shm_perm, &tbuf->shm_perm);
+	tbuf->shm_segsz	= shp->shm_segsz;
+	tbuf->shm_atime	= shp->shm_atim;
+	tbuf->shm_dtime	= shp->shm_dtim;
+	tbuf->shm_ctime	= shp->shm_ctim;
+	tbuf->shm_cpid	= shp->shm_cprid;
+	tbuf->shm_lpid	= shp->shm_lprid;
+	tbuf->shm_nattch = shp->shm_nattch;
+	rcu_read_unlock();
+	return result;
+
+out_unlock:
+	rcu_read_unlock();
+	return err;
+}
+
+static int shmctl_do_lock(struct ipc_namespace *ns, int shmid, int cmd)
+{
+	struct shmid_kernel *shp;
+	struct file *shm_file;
+	int err;
+
+	rcu_read_lock();
+	shp = shm_obtain_object_check(ns, shmid);
+	if (IS_ERR(shp)) {
+		err = PTR_ERR(shp);
+		goto out_unlock1;
 	}
-	case SHM_STAT:
-	case IPC_STAT:
-	{
-		struct shmid64_ds tbuf;
-		int result;
-
-		rcu_read_lock();
-		if (cmd == SHM_STAT) {
-			shp = shm_obtain_object(ns, shmid);
-			if (IS_ERR(shp)) {
-				err = PTR_ERR(shp);
-				goto out_unlock;
-			}
-			result = shp->shm_perm.id;
-		} else {
-			shp = shm_obtain_object_check(ns, shmid);
-			if (IS_ERR(shp)) {
-				err = PTR_ERR(shp);
-				goto out_unlock;
-			}
-			result = 0;
-		}
 
-		err = -EACCES;
-		if (ipcperms(ns, &shp->shm_perm, S_IRUGO))
-			goto out_unlock;
+	audit_ipc_obj(&(shp->shm_perm));
+	err = security_shm_shmctl(shp, cmd);
+	if (err)
+		goto out_unlock1;
 
-		err = security_shm_shmctl(shp, cmd);
-		if (err)
-			goto out_unlock;
+	ipc_lock_object(&shp->shm_perm);
 
-		memset(&tbuf, 0, sizeof(tbuf));
-		kernel_to_ipc64_perm(&shp->shm_perm, &tbuf.shm_perm);
-		tbuf.shm_segsz	= shp->shm_segsz;
-		tbuf.shm_atime	= shp->shm_atim;
-		tbuf.shm_dtime	= shp->shm_dtim;
-		tbuf.shm_ctime	= shp->shm_ctim;
-		tbuf.shm_cpid	= shp->shm_cprid;
-		tbuf.shm_lpid	= shp->shm_lprid;
-		tbuf.shm_nattch	= shp->shm_nattch;
-		rcu_read_unlock();
-
-		if (copy_shmid_to_user(buf, &tbuf, version))
-			err = -EFAULT;
-		else
-			err = result;
-		goto out;
+	/* check if shm_destroy() is tearing down shp */
+	if (!ipc_valid_object(&shp->shm_perm)) {
+		err = -EIDRM;
+		goto out_unlock0;
 	}
-	default:
-		return -EINVAL;
+
+	if (!ns_capable(ns->user_ns, CAP_IPC_LOCK)) {
+		kuid_t euid = current_euid();
+
+		if (!uid_eq(euid, shp->shm_perm.uid) &&
+		    !uid_eq(euid, shp->shm_perm.cuid)) {
+			err = -EPERM;
+			goto out_unlock0;
+		}
+		if (cmd == SHM_LOCK && !rlimit(RLIMIT_MEMLOCK)) {
+			err = -EPERM;
+			goto out_unlock0;
+		}
 	}
 
-out_unlock:
+	shm_file = shp->shm_file;
+	if (is_file_hugepages(shm_file))
+		goto out_unlock0;
+
+	if (cmd == SHM_LOCK) {
+		struct user_struct *user = current_user();
+
+		err = shmem_lock(shm_file, 1, user);
+		if (!err && !(shp->shm_perm.mode & SHM_LOCKED)) {
+			shp->shm_perm.mode |= SHM_LOCKED;
+			shp->mlock_user = user;
+		}
+		goto out_unlock0;
+	}
+
+	/* SHM_UNLOCK */
+	if (!(shp->shm_perm.mode & SHM_LOCKED))
+		goto out_unlock0;
+	shmem_lock(shm_file, 0, shp->mlock_user);
+	shp->shm_perm.mode &= ~SHM_LOCKED;
+	shp->mlock_user = NULL;
+	get_file(shm_file);
+	ipc_unlock_object(&shp->shm_perm);
+	rcu_read_unlock();
+	shmem_unlock_mapping(shm_file->f_mapping);
+
+	fput(shm_file);
+	return err;
+
+out_unlock0:
+	ipc_unlock_object(&shp->shm_perm);
+out_unlock1:
 	rcu_read_unlock();
-out:
 	return err;
 }
 
 SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
 {
-	struct shmid_kernel *shp;
 	int err, version;
 	struct ipc_namespace *ns;
+	struct shmid64_ds sem64;
 
 	if (cmd < 0 || shmid < 0)
 		return -EINVAL;
@@ -997,92 +1042,222 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
 	ns = current->nsproxy->ipc_ns;
 
 	switch (cmd) {
-	case IPC_INFO:
-	case SHM_INFO:
+	case IPC_INFO: {
+		struct shminfo64 shminfo;
+		err = shmctl_ipc_info(ns, &shminfo);
+		if (err < 0)
+			return err;
+		if (copy_shminfo_to_user(buf, &shminfo, version))
+			err = -EFAULT;
+		return err;
+	}
+	case SHM_INFO: {
+		struct shm_info shm_info;
+		err = shmctl_shm_info(ns, &shm_info);
+		if (err < 0)
+			return err;
+		if (copy_to_user(buf, &shm_info, sizeof(shm_info)))
+			err = -EFAULT;
+		return err;
+	}
 	case SHM_STAT:
-	case IPC_STAT:
-		return shmctl_nolock(ns, shmid, cmd, version, buf);
-	case IPC_RMID:
+	case IPC_STAT: {
+		err = shmctl_stat(ns, shmid, cmd, &sem64);
+		if (err < 0)
+			return err;
+		if (copy_shmid_to_user(buf, &sem64, version))
+			err = -EFAULT;
+		return err;
+	}
 	case IPC_SET:
-		return shmctl_down(ns, shmid, cmd, buf, version);
+		if (copy_shmid_from_user(&sem64, buf, version))
+			return -EFAULT;
+		/* fallthru */
+	case IPC_RMID:
+		return shmctl_down(ns, shmid, cmd, &sem64);
 	case SHM_LOCK:
 	case SHM_UNLOCK:
-	{
-		struct file *shm_file;
+		return shmctl_do_lock(ns, shmid, cmd);
+	default:
+		return -EINVAL;
+	}
+}
 
-		rcu_read_lock();
-		shp = shm_obtain_object_check(ns, shmid);
-		if (IS_ERR(shp)) {
-			err = PTR_ERR(shp);
-			goto out_unlock1;
-		}
+#ifdef CONFIG_COMPAT
+
+struct compat_shmid_ds {
+	struct compat_ipc_perm shm_perm;
+	int shm_segsz;
+	compat_time_t shm_atime;
+	compat_time_t shm_dtime;
+	compat_time_t shm_ctime;
+	compat_ipc_pid_t shm_cpid;
+	compat_ipc_pid_t shm_lpid;
+	unsigned short shm_nattch;
+	unsigned short shm_unused;
+	compat_uptr_t shm_unused2;
+	compat_uptr_t shm_unused3;
+};
 
-		audit_ipc_obj(&(shp->shm_perm));
-		err = security_shm_shmctl(shp, cmd);
-		if (err)
-			goto out_unlock1;
+struct compat_shminfo64 {
+	compat_ulong_t shmmax;
+	compat_ulong_t shmmin;
+	compat_ulong_t shmmni;
+	compat_ulong_t shmseg;
+	compat_ulong_t shmall;
+	compat_ulong_t __unused1;
+	compat_ulong_t __unused2;
+	compat_ulong_t __unused3;
+	compat_ulong_t __unused4;
+};
 
-		ipc_lock_object(&shp->shm_perm);
+struct compat_shm_info {
+	compat_int_t used_ids;
+	compat_ulong_t shm_tot, shm_rss, shm_swp;
+	compat_ulong_t swap_attempts, swap_successes;
+};
 
-		/* check if shm_destroy() is tearing down shp */
-		if (!ipc_valid_object(&shp->shm_perm)) {
-			err = -EIDRM;
-			goto out_unlock0;
-		}
+static int copy_compat_shminfo_to_user(void __user *buf, struct shminfo64 *in,
+					int version)
+{
+	if (in->shmmax > INT_MAX)
+		in->shmmax = INT_MAX;
+	if (version == IPC_64) {
+		struct compat_shminfo64 info;
+		memset(&info, 0, sizeof(info));
+		info.shmmax = in->shmmax;
+		info.shmmin = in->shmmin;
+		info.shmmni = in->shmmni;
+		info.shmseg = in->shmseg;
+		info.shmall = in->shmall;
+		return copy_to_user(buf, &info, sizeof(info));
+	} else {
+		struct shminfo info;
+		memset(&info, 0, sizeof(info));
+		info.shmmax = in->shmmax;
+		info.shmmin = in->shmmin;
+		info.shmmni = in->shmmni;
+		info.shmseg = in->shmseg;
+		info.shmall = in->shmall;
+		return copy_to_user(buf, &info, sizeof(info));
+	}
+}
 
-		if (!ns_capable(ns->user_ns, CAP_IPC_LOCK)) {
-			kuid_t euid = current_euid();
-
-			if (!uid_eq(euid, shp->shm_perm.uid) &&
-			    !uid_eq(euid, shp->shm_perm.cuid)) {
-				err = -EPERM;
-				goto out_unlock0;
-			}
-			if (cmd == SHM_LOCK && !rlimit(RLIMIT_MEMLOCK)) {
-				err = -EPERM;
-				goto out_unlock0;
-			}
-		}
+static int put_compat_shm_info(struct shm_info *ip,
+				struct compat_shm_info __user *uip)
+{
+	struct compat_shm_info info;
+
+	memset(&info, 0, sizeof(info));
+	info.used_ids = ip->used_ids;
+	info.shm_tot = ip->shm_tot;
+	info.shm_rss = ip->shm_rss;
+	info.shm_swp = ip->shm_swp;
+	info.swap_attempts = ip->swap_attempts;
+	info.swap_successes = ip->swap_successes;
+	return copy_to_user(uip, &info, sizeof(info));
+}
 
-		shm_file = shp->shm_file;
-		if (is_file_hugepages(shm_file))
-			goto out_unlock0;
+static int copy_compat_shmid_to_user(void __user *buf, struct shmid64_ds *in,
+					int version)
+{
+	if (version == IPC_64) {
+		struct compat_shmid64_ds v;
+		memset(&v, 0, sizeof(v));
+		to_compat_ipc64_perm(&v.shm_perm, &in->shm_perm);
+		v.shm_atime = in->shm_atime;
+		v.shm_dtime = in->shm_dtime;
+		v.shm_ctime = in->shm_ctime;
+		v.shm_segsz = in->shm_segsz;
+		v.shm_nattch = in->shm_nattch;
+		v.shm_cpid = in->shm_cpid;
+		v.shm_lpid = in->shm_lpid;
+		return copy_to_user(buf, &v, sizeof(v));
+	} else {
+		struct compat_shmid_ds v;
+		memset(&v, 0, sizeof(v));
+		to_compat_ipc_perm(&v.shm_perm, &in->shm_perm);
+		v.shm_perm.key = in->shm_perm.key;
+		v.shm_atime = in->shm_atime;
+		v.shm_dtime = in->shm_dtime;
+		v.shm_ctime = in->shm_ctime;
+		v.shm_segsz = in->shm_segsz;
+		v.shm_nattch = in->shm_nattch;
+		v.shm_cpid = in->shm_cpid;
+		v.shm_lpid = in->shm_lpid;
+		return copy_to_user(buf, &v, sizeof(v));
+	}
+}
 
-		if (cmd == SHM_LOCK) {
-			struct user_struct *user = current_user();
+static int copy_compat_shmid_from_user(struct shmid64_ds *out, void __user *buf,
+					int version)
+{
+	memset(out, 0, sizeof(*out));
+	if (version == IPC_64) {
+		struct compat_shmid64_ds *p = buf;
+		return get_compat_ipc64_perm(&out->shm_perm, &p->shm_perm);
+	} else {
+		struct compat_shmid_ds *p = buf;
+		return get_compat_ipc_perm(&out->shm_perm, &p->shm_perm);
+	}
+}
 
-			err = shmem_lock(shm_file, 1, user);
-			if (!err && !(shp->shm_perm.mode & SHM_LOCKED)) {
-				shp->shm_perm.mode |= SHM_LOCKED;
-				shp->mlock_user = user;
-			}
-			goto out_unlock0;
-		}
+COMPAT_SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, void __user *, uptr)
+{
+	struct ipc_namespace *ns;
+	struct shmid64_ds sem64;
+	int version = compat_ipc_parse_version(&cmd);
+	int err;
 
-		/* SHM_UNLOCK */
-		if (!(shp->shm_perm.mode & SHM_LOCKED))
-			goto out_unlock0;
-		shmem_lock(shm_file, 0, shp->mlock_user);
-		shp->shm_perm.mode &= ~SHM_LOCKED;
-		shp->mlock_user = NULL;
-		get_file(shm_file);
-		ipc_unlock_object(&shp->shm_perm);
-		rcu_read_unlock();
-		shmem_unlock_mapping(shm_file->f_mapping);
+	ns = current->nsproxy->ipc_ns;
+
+	if (cmd < 0 || shmid < 0)
+		return -EINVAL;
 
-		fput(shm_file);
+	switch (cmd) {
+	case IPC_INFO: {
+		struct shminfo64 shminfo;
+		err = shmctl_ipc_info(ns, &shminfo);
+		if (err < 0)
+			return err;
+		if (copy_compat_shminfo_to_user(uptr, &shminfo, version))
+			err = -EFAULT;
+		return err;
+	}
+	case SHM_INFO: {
+		struct shm_info shm_info;
+		err = shmctl_shm_info(ns, &shm_info);
+		if (err < 0)
+			return err;
+		if (put_compat_shm_info(&shm_info, uptr))
+			err = -EFAULT;
 		return err;
 	}
+	case IPC_STAT:
+	case SHM_STAT:
+		err = shmctl_stat(ns, shmid, cmd, &sem64);
+		if (err < 0)
+			return err;
+		if (copy_compat_shmid_to_user(uptr, &sem64, version))
+			err = -EFAULT;
+		return err;
+
+	case IPC_SET:
+		if (copy_compat_shmid_from_user(&sem64, uptr, version))
+			return -EFAULT;
+		/* fallthru */
+	case IPC_RMID:
+		return shmctl_down(ns, shmid, cmd, &sem64);
+	case SHM_LOCK:
+	case SHM_UNLOCK:
+		return shmctl_do_lock(ns, shmid, cmd);
+		break;
 	default:
 		return -EINVAL;
 	}
-
-out_unlock0:
-	ipc_unlock_object(&shp->shm_perm);
-out_unlock1:
-	rcu_read_unlock();
 	return err;
 }
+#endif
 
 /*
  * Fix shmaddr, allocate descriptor, map shm, add attach descriptor to lists.
@@ -1267,6 +1442,25 @@ SYSCALL_DEFINE3(shmat, int, shmid, char __user *, shmaddr, int, shmflg)
 	return (long)ret;
 }
 
+#ifdef CONFIG_COMPAT
+
+#ifndef COMPAT_SHMLBA
+#define COMPAT_SHMLBA	SHMLBA
+#endif
+
+COMPAT_SYSCALL_DEFINE3(shmat, int, shmid, compat_uptr_t, shmaddr, int, shmflg)
+{
+	unsigned long ret;
+	long err;
+
+	err = do_shmat(shmid, compat_ptr(shmaddr), shmflg, &ret, COMPAT_SHMLBA);
+	if (err)
+		return err;
+	force_successful_syscall_return();
+	return (long)ret;
+}
+#endif
+
 /*
  * detach and kill segment if marked destroyed.
  * The work is done in shm_close.
@@ -1397,7 +1591,7 @@ static int sysvipc_shm_proc_show(struct seq_file *s, void *it)
 
 	seq_printf(s,
 		   "%10d %10d  %4o " SIZE_SPEC " %5u %5u  "
-		   "%5lu %5u %5u %5u %5u %10lu %10lu %10lu "
+		   "%5lu %5u %5u %5u %5u %10llu %10llu %10llu "
 		   SIZE_SPEC " " SIZE_SPEC "\n",
 		   shp->shm_perm.key,
 		   shp->shm_perm.id,
diff --git a/ipc/syscall.c b/ipc/syscall.c
index 52429489cde0..26b45db2e007 100644
--- a/ipc/syscall.c
+++ b/ipc/syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sys_ipc() is the old de-multiplexer for the SysV IPC calls.
  *
@@ -5,12 +6,12 @@
  * the individual syscalls instead.
  */
 #include <linux/unistd.h>
+#include <linux/syscalls.h>
 
 #ifdef __ARCH_WANT_SYS_IPC
 #include <linux/errno.h>
 #include <linux/ipc.h>
 #include <linux/shm.h>
-#include <linux/syscalls.h>
 #include <linux/uaccess.h>
 
 SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
@@ -97,3 +98,91 @@ SYSCALL_DEFINE6(ipc, unsigned int, call, int, first, unsigned long, second,
 	}
 }
 #endif
+
+#ifdef CONFIG_COMPAT
+#include <linux/compat.h>
+
+#ifndef COMPAT_SHMLBA
+#define COMPAT_SHMLBA	SHMLBA
+#endif
+
+struct compat_ipc_kludge {
+	compat_uptr_t msgp;
+	compat_long_t msgtyp;
+};
+
+#ifdef CONFIG_ARCH_WANT_OLD_COMPAT_IPC
+COMPAT_SYSCALL_DEFINE6(ipc, u32, call, int, first, int, second,
+	u32, third, compat_uptr_t, ptr, u32, fifth)
+{
+	int version;
+	u32 pad;
+
+	version = call >> 16; /* hack for backward compatibility */
+	call &= 0xffff;
+
+	switch (call) {
+	case SEMOP:
+		/* struct sembuf is the same on 32 and 64bit :)) */
+		return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
+	case SEMTIMEDOP:
+		return compat_sys_semtimedop(first, compat_ptr(ptr), second,
+						compat_ptr(fifth));
+	case SEMGET:
+		return sys_semget(first, second, third);
+	case SEMCTL:
+		if (!ptr)
+			return -EINVAL;
+		if (get_user(pad, (u32 __user *) compat_ptr(ptr)))
+			return -EFAULT;
+		return compat_sys_semctl(first, second, third, pad);
+
+	case MSGSND:
+		return compat_sys_msgsnd(first, ptr, second, third);
+
+	case MSGRCV: {
+		void __user *uptr = compat_ptr(ptr);
+
+		if (first < 0 || second < 0)
+			return -EINVAL;
+
+		if (!version) {
+			struct compat_ipc_kludge ipck;
+			if (!uptr)
+				return -EINVAL;
+			if (copy_from_user(&ipck, uptr, sizeof(ipck)))
+				return -EFAULT;
+			return compat_sys_msgrcv(first, ipck.msgp, second,
+						 ipck.msgtyp, third);
+		}
+		return compat_sys_msgrcv(first, ptr, second, fifth, third);
+	}
+	case MSGGET:
+		return sys_msgget(first, second);
+	case MSGCTL:
+		return compat_sys_msgctl(first, second, compat_ptr(ptr));
+
+	case SHMAT: {
+		int err;
+		unsigned long raddr;
+
+		if (version == 1)
+			return -EINVAL;
+		err = do_shmat(first, compat_ptr(ptr), second, &raddr,
+			       COMPAT_SHMLBA);
+		if (err < 0)
+			return err;
+		return put_user(raddr, (compat_ulong_t *)compat_ptr(third));
+	}
+	case SHMDT:
+		return sys_shmdt(compat_ptr(ptr));
+	case SHMGET:
+		return sys_shmget(first, (unsigned)second, third);
+	case SHMCTL:
+		return compat_sys_shmctl(first, second, compat_ptr(ptr));
+	}
+
+	return -ENOSYS;
+}
+#endif
+#endif
diff --git a/ipc/util.c b/ipc/util.c
index 78755873cc5b..79b30eee32cd 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/ipc/util.c
  * Copyright (C) 1992 Krishna Balasubramanian
diff --git a/ipc/util.h b/ipc/util.h
index 80c9f51c3f07..579112d90016 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/ipc/util.h
  * Copyright (C) 1999 Christoph Rohland
@@ -194,4 +195,34 @@ int ipcget(struct ipc_namespace *ns, struct ipc_ids *ids,
 			const struct ipc_ops *ops, struct ipc_params *params);
 void free_ipcs(struct ipc_namespace *ns, struct ipc_ids *ids,
 		void (*free)(struct ipc_namespace *, struct kern_ipc_perm *));
+
+#ifdef CONFIG_COMPAT
+#include <linux/compat.h>
+struct compat_ipc_perm {
+	key_t key;
+	__compat_uid_t uid;
+	__compat_gid_t gid;
+	__compat_uid_t cuid;
+	__compat_gid_t cgid;
+	compat_mode_t mode;
+	unsigned short seq;
+};
+
+void to_compat_ipc_perm(struct compat_ipc_perm *, struct ipc64_perm *);
+void to_compat_ipc64_perm(struct compat_ipc64_perm *, struct ipc64_perm *);
+int get_compat_ipc_perm(struct ipc64_perm *, struct compat_ipc_perm __user *);
+int get_compat_ipc64_perm(struct ipc64_perm *,
+			  struct compat_ipc64_perm __user *);
+
+static inline int compat_ipc_parse_version(int *cmd)
+{
+#ifdef	CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION
+	int version = *cmd & IPC_64;
+	*cmd &= ~IPC_64;
+	return version;
+#else
+	return IPC_64;
+#endif
+}
+#endif
 #endif
diff --git a/kernel/Makefile b/kernel/Makefile
index ed470aac53da..172d151d429c 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux kernel.
 #
diff --git a/kernel/acct.c b/kernel/acct.c
index 5b1284370367..d15c0ee4d955 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/kernel/acct.c
  *
@@ -146,7 +147,7 @@ static struct bsd_acct_struct *acct_get(struct pid_namespace *ns)
 again:
 	smp_rmb();
 	rcu_read_lock();
-	res = to_acct(ACCESS_ONCE(ns->bacct));
+	res = to_acct(READ_ONCE(ns->bacct));
 	if (!res) {
 		rcu_read_unlock();
 		return NULL;
@@ -158,7 +159,7 @@ again:
 	}
 	rcu_read_unlock();
 	mutex_lock(&res->lock);
-	if (res != to_acct(ACCESS_ONCE(ns->bacct))) {
+	if (res != to_acct(READ_ONCE(ns->bacct))) {
 		mutex_unlock(&res->lock);
 		acct_put(res);
 		goto again;
@@ -516,7 +517,7 @@ static void do_acct_process(struct bsd_acct_struct *acct)
 	if (file_start_write_trylock(file)) {
 		/* it's been opened O_APPEND, so position is irrelevant */
 		loff_t pos = 0;
-		__kernel_write(file, (char *)&ac, sizeof(acct_t), &pos);
+		__kernel_write(file, &ac, sizeof(acct_t), &pos);
 		file_end_write(file);
 	}
 out:
diff --git a/kernel/audit.h b/kernel/audit.h
index b331d9b83f63..9b110ae17ee3 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -182,7 +182,7 @@ struct audit_context {
 			mqd_t			mqdes;
 			size_t			msg_len;
 			unsigned int		msg_prio;
-			struct timespec		abs_timeout;
+			struct timespec64	abs_timeout;
 		} mq_sendrecv;
 		struct {
 			int			oflag;
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 011d46e5f73f..fd353120e0d9 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "audit.h"
 #include <linux/fsnotify_backend.h>
 #include <linux/namei.h>
@@ -1007,7 +1008,7 @@ static void audit_tree_freeing_mark(struct fsnotify_mark *entry, struct fsnotify
 	 * We are guaranteed to have at least one reference to the mark from
 	 * either the inode or the caller of fsnotify_destroy_mark().
 	 */
-	BUG_ON(atomic_read(&entry->refcnt) < 1);
+	BUG_ON(refcount_read(&entry->refcnt) < 1);
 }
 
 static const struct fsnotify_ops audit_tree_ops = {
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index aac1a41f82bd..9c723e978245 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1235,11 +1235,11 @@ static void show_special(struct audit_context *context, int *call_panic)
 	case AUDIT_MQ_SENDRECV:
 		audit_log_format(ab,
 			"mqdes=%d msg_len=%zd msg_prio=%u "
-			"abs_timeout_sec=%ld abs_timeout_nsec=%ld",
+			"abs_timeout_sec=%lld abs_timeout_nsec=%ld",
 			context->mq_sendrecv.mqdes,
 			context->mq_sendrecv.msg_len,
 			context->mq_sendrecv.msg_prio,
-			context->mq_sendrecv.abs_timeout.tv_sec,
+			(long long) context->mq_sendrecv.abs_timeout.tv_sec,
 			context->mq_sendrecv.abs_timeout.tv_nsec);
 		break;
 	case AUDIT_MQ_NOTIFY:
@@ -2083,15 +2083,15 @@ void __audit_mq_open(int oflag, umode_t mode, struct mq_attr *attr)
  *
  */
 void __audit_mq_sendrecv(mqd_t mqdes, size_t msg_len, unsigned int msg_prio,
-			const struct timespec *abs_timeout)
+			const struct timespec64 *abs_timeout)
 {
 	struct audit_context *context = current->audit_context;
-	struct timespec *p = &context->mq_sendrecv.abs_timeout;
+	struct timespec64 *p = &context->mq_sendrecv.abs_timeout;
 
 	if (abs_timeout)
-		memcpy(p, abs_timeout, sizeof(struct timespec));
+		memcpy(p, abs_timeout, sizeof(*p));
 	else
-		memset(p, 0, sizeof(struct timespec));
+		memset(p, 0, sizeof(*p));
 
 	context->mq_sendrecv.mqdes = mqdes;
 	context->mq_sendrecv.msg_len = msg_len;
@@ -2390,6 +2390,12 @@ void __audit_log_kern_module(char *name)
 	context->type = AUDIT_KERN_MODULE;
 }
 
+void __audit_fanotify(unsigned int response)
+{
+	audit_log(current->audit_context, GFP_KERNEL,
+		AUDIT_FANOTIFY,	"resp=%u", response);
+}
+
 static void audit_log_task(struct audit_buffer *ab)
 {
 	kuid_t auid, uid;
diff --git a/kernel/bounds.c b/kernel/bounds.c
index e1d1d1952bfa..c373e887c066 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generate definitions needed by the preprocessor.
  * This code generates raw asm output which is post-processed
diff --git a/kernel/bpf/Makefile b/kernel/bpf/Makefile
index 897daa005b23..af3ab6164ff5 100644
--- a/kernel/bpf/Makefile
+++ b/kernel/bpf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y := core.o
 
 obj-$(CONFIG_BPF_SYSCALL) += syscall.o verifier.o inode.o helpers.o tnum.o
diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index 98c0f00c3f5e..c4b9ab01bba5 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -98,7 +98,7 @@ static struct bpf_map *array_map_alloc(union bpf_attr *attr)
 	array_size += (u64) attr->max_entries * elem_size * num_possible_cpus();
 
 	if (array_size >= U32_MAX - PAGE_SIZE ||
-	    elem_size > PCPU_MIN_UNIT_SIZE || bpf_array_alloc_percpu(array)) {
+	    bpf_array_alloc_percpu(array)) {
 		bpf_map_area_free(array);
 		return ERR_PTR(-ENOMEM);
 	}
@@ -492,7 +492,7 @@ static void *perf_event_fd_array_get_ptr(struct bpf_map *map,
 
 	ee = ERR_PTR(-EOPNOTSUPP);
 	event = perf_file->private_data;
-	if (perf_event_read_local(event, &value) == -EOPNOTSUPP)
+	if (perf_event_read_local(event, &value, NULL, NULL) == -EOPNOTSUPP)
 		goto err_out;
 
 	ee = bpf_event_entry_gen(perf_file, map_file);
diff --git a/kernel/bpf/core.c b/kernel/bpf/core.c
index 917cc04a0a94..7b62df86be1d 100644
--- a/kernel/bpf/core.c
+++ b/kernel/bpf/core.c
@@ -1022,7 +1022,7 @@ select_insn:
 		struct bpf_map *map = (struct bpf_map *) (unsigned long) BPF_R2;
 		struct bpf_array *array = container_of(map, struct bpf_array, map);
 		struct bpf_prog *prog;
-		u64 index = BPF_R3;
+		u32 index = BPF_R3;
 
 		if (unlikely(index >= array->map.max_entries))
 			goto out;
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 959c9a07f318..e745d6a88224 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -69,14 +69,17 @@ static LIST_HEAD(dev_map_list);
 
 static u64 dev_map_bitmap_size(const union bpf_attr *attr)
 {
-	return BITS_TO_LONGS(attr->max_entries) * sizeof(unsigned long);
+	return BITS_TO_LONGS((u64) attr->max_entries) * sizeof(unsigned long);
 }
 
 static struct bpf_map *dev_map_alloc(union bpf_attr *attr)
 {
 	struct bpf_dtab *dtab;
+	int err = -EINVAL;
 	u64 cost;
-	int err;
+
+	if (!capable(CAP_NET_ADMIN))
+		return ERR_PTR(-EPERM);
 
 	/* check sanity of attributes */
 	if (attr->max_entries == 0 || attr->key_size != 4 ||
@@ -108,9 +111,12 @@ static struct bpf_map *dev_map_alloc(union bpf_attr *attr)
 	if (err)
 		goto free_dtab;
 
+	err = -ENOMEM;
+
 	/* A per cpu bitfield with a bit per possible net device */
-	dtab->flush_needed = __alloc_percpu(dev_map_bitmap_size(attr),
-					    __alignof__(unsigned long));
+	dtab->flush_needed = __alloc_percpu_gfp(dev_map_bitmap_size(attr),
+						__alignof__(unsigned long),
+						GFP_KERNEL | __GFP_NOWARN);
 	if (!dtab->flush_needed)
 		goto free_dtab;
 
@@ -128,7 +134,7 @@ static struct bpf_map *dev_map_alloc(union bpf_attr *attr)
 free_dtab:
 	free_percpu(dtab->flush_needed);
 	kfree(dtab);
-	return ERR_PTR(-ENOMEM);
+	return ERR_PTR(err);
 }
 
 static void dev_map_free(struct bpf_map *map)
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 431126f31ea3..6533f08d1238 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -317,10 +317,6 @@ static struct bpf_map *htab_map_alloc(union bpf_attr *attr)
 		 */
 		goto free_htab;
 
-	if (percpu && round_up(htab->map.value_size, 8) > PCPU_MIN_UNIT_SIZE)
-		/* make sure the size for pcpu_alloc() is reasonable */
-		goto free_htab;
-
 	htab->elem_size = sizeof(struct htab_elem) +
 			  round_up(htab->map.key_size, 8);
 	if (percpu)
diff --git a/kernel/bpf/inode.c b/kernel/bpf/inode.c
index e833ed914358..be1dde967208 100644
--- a/kernel/bpf/inode.c
+++ b/kernel/bpf/inode.c
@@ -363,6 +363,7 @@ out:
 	putname(pname);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(bpf_obj_get_user);
 
 static void bpf_evict_inode(struct inode *inode)
 {
diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c
index 6424ce0e4969..dbd7b322a86b 100644
--- a/kernel/bpf/sockmap.c
+++ b/kernel/bpf/sockmap.c
@@ -39,6 +39,7 @@
 #include <linux/workqueue.h>
 #include <linux/list.h>
 #include <net/strparser.h>
+#include <net/tcp.h>
 
 struct bpf_stab {
 	struct bpf_map map;
@@ -92,21 +93,45 @@ static inline struct smap_psock *smap_psock_sk(const struct sock *sk)
 	return rcu_dereference_sk_user_data(sk);
 }
 
+/* compute the linear packet data range [data, data_end) for skb when
+ * sk_skb type programs are in use.
+ */
+static inline void bpf_compute_data_end_sk_skb(struct sk_buff *skb)
+{
+	TCP_SKB_CB(skb)->bpf.data_end = skb->data + skb_headlen(skb);
+}
+
+enum __sk_action {
+	__SK_DROP = 0,
+	__SK_PASS,
+	__SK_REDIRECT,
+};
+
 static int smap_verdict_func(struct smap_psock *psock, struct sk_buff *skb)
 {
 	struct bpf_prog *prog = READ_ONCE(psock->bpf_verdict);
 	int rc;
 
 	if (unlikely(!prog))
-		return SK_DROP;
+		return __SK_DROP;
 
 	skb_orphan(skb);
+	/* We need to ensure that BPF metadata for maps is also cleared
+	 * when we orphan the skb so that we don't have the possibility
+	 * to reference a stale map.
+	 */
+	TCP_SKB_CB(skb)->bpf.map = NULL;
 	skb->sk = psock->sock;
-	bpf_compute_data_end(skb);
+	bpf_compute_data_end_sk_skb(skb);
+	preempt_disable();
 	rc = (*prog->bpf_func)(skb, prog->insnsi);
+	preempt_enable();
 	skb->sk = NULL;
 
-	return rc;
+	/* Moving return codes from UAPI namespace into internal namespace */
+	return rc == SK_PASS ?
+		(TCP_SKB_CB(skb)->bpf.map ? __SK_REDIRECT : __SK_PASS) :
+		__SK_DROP;
 }
 
 static void smap_do_verdict(struct smap_psock *psock, struct sk_buff *skb)
@@ -114,17 +139,10 @@ static void smap_do_verdict(struct smap_psock *psock, struct sk_buff *skb)
 	struct sock *sk;
 	int rc;
 
-	/* Because we use per cpu values to feed input from sock redirect
-	 * in BPF program to do_sk_redirect_map() call we need to ensure we
-	 * are not preempted. RCU read lock is not sufficient in this case
-	 * with CONFIG_PREEMPT_RCU enabled so we must be explicit here.
-	 */
-	preempt_disable();
 	rc = smap_verdict_func(psock, skb);
 	switch (rc) {
-	case SK_REDIRECT:
-		sk = do_sk_redirect_map();
-		preempt_enable();
+	case __SK_REDIRECT:
+		sk = do_sk_redirect_map(skb);
 		if (likely(sk)) {
 			struct smap_psock *peer = smap_psock_sk(sk);
 
@@ -139,10 +157,8 @@ static void smap_do_verdict(struct smap_psock *psock, struct sk_buff *skb)
 			}
 		}
 	/* Fall through and free skb otherwise */
-	case SK_DROP:
+	case __SK_DROP:
 	default:
-		if (rc != SK_REDIRECT)
-			preempt_enable();
 		kfree_skb(skb);
 	}
 }
@@ -369,7 +385,7 @@ static int smap_parse_func_strparser(struct strparser *strp,
 	 * any socket yet.
 	 */
 	skb->sk = psock->sock;
-	bpf_compute_data_end(skb);
+	bpf_compute_data_end_sk_skb(skb);
 	rc = (*prog->bpf_func)(skb, prog->insnsi);
 	skb->sk = NULL;
 	rcu_read_unlock();
@@ -487,6 +503,9 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)
 	int err = -EINVAL;
 	u64 cost;
 
+	if (!capable(CAP_NET_ADMIN))
+		return ERR_PTR(-EPERM);
+
 	/* check sanity of attributes */
 	if (attr->max_entries == 0 || attr->key_size != 4 ||
 	    attr->value_size != 4 || attr->map_flags & ~BPF_F_NUMA_NODE)
@@ -840,6 +859,12 @@ static int sock_map_update_elem(struct bpf_map *map,
 		return -EINVAL;
 	}
 
+	if (skops.sk->sk_type != SOCK_STREAM ||
+	    skops.sk->sk_protocol != IPPROTO_TCP) {
+		fput(socket->file);
+		return -EOPNOTSUPP;
+	}
+
 	err = sock_map_ctx_update_elem(&skops, map, key, flags);
 	fput(socket->file);
 	return err;
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index cb17e1cd1d43..25d074920a00 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -186,15 +186,17 @@ static int bpf_map_alloc_id(struct bpf_map *map)
 
 static void bpf_map_free_id(struct bpf_map *map, bool do_idr_lock)
 {
+	unsigned long flags;
+
 	if (do_idr_lock)
-		spin_lock_bh(&map_idr_lock);
+		spin_lock_irqsave(&map_idr_lock, flags);
 	else
 		__acquire(&map_idr_lock);
 
 	idr_remove(&map_idr, map->id);
 
 	if (do_idr_lock)
-		spin_unlock_bh(&map_idr_lock);
+		spin_unlock_irqrestore(&map_idr_lock, flags);
 	else
 		__release(&map_idr_lock);
 }
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 477b6932c3c1..c48ca2a34b5e 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -653,6 +653,10 @@ static void mark_reg_read(const struct bpf_verifier_state *state, u32 regno)
 {
 	struct bpf_verifier_state *parent = state->parent;
 
+	if (regno == BPF_REG_FP)
+		/* We don't need to worry about FP liveness because it's read-only */
+		return;
+
 	while (parent) {
 		/* if read wasn't screened by an earlier write ... */
 		if (state->regs[regno].live & REG_LIVE_WRITTEN)
@@ -1112,7 +1116,12 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
 		/* ctx accesses must be at a fixed offset, so that we can
 		 * determine what type of data were returned.
 		 */
-		if (!tnum_is_const(reg->var_off)) {
+		if (reg->off) {
+			verbose("dereference of modified ctx ptr R%d off=%d+%d, ctx+const is allowed, ctx+const+const is not\n",
+				regno, reg->off, off - reg->off);
+			return -EACCES;
+		}
+		if (!tnum_is_const(reg->var_off) || reg->var_off.value) {
 			char tn_buf[48];
 
 			tnum_strn(tn_buf, sizeof(tn_buf), reg->var_off);
@@ -1120,7 +1129,6 @@ static int check_mem_access(struct bpf_verifier_env *env, int insn_idx, u32 regn
 				tn_buf, off, size);
 			return -EACCES;
 		}
-		off += reg->var_off.value;
 		err = check_ctx_access(env, insn_idx, off, size, t, &reg_type);
 		if (!err && t == BPF_READ && value_regno >= 0) {
 			/* ctx access returns either a scalar, or a
@@ -2292,7 +2300,8 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn)
 			}
 		} else {
 			if (insn->src_reg != BPF_REG_0 || insn->off != 0 ||
-			    (insn->imm != 16 && insn->imm != 32 && insn->imm != 64)) {
+			    (insn->imm != 16 && insn->imm != 32 && insn->imm != 64) ||
+			    BPF_CLASS(insn->code) == BPF_ALU64) {
 				verbose("BPF_END uses reserved fields\n");
 				return -EINVAL;
 			}
@@ -2344,6 +2353,7 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn)
 				 * copy register state to dest reg
 				 */
 				regs[insn->dst_reg] = regs[insn->src_reg];
+				regs[insn->dst_reg].live |= REG_LIVE_WRITTEN;
 			} else {
 				/* R1 = (u32) R2 */
 				if (is_pointer_value(env, insn->src_reg)) {
@@ -2420,12 +2430,15 @@ static int check_alu_op(struct bpf_verifier_env *env, struct bpf_insn *insn)
 }
 
 static void find_good_pkt_pointers(struct bpf_verifier_state *state,
-				   struct bpf_reg_state *dst_reg)
+				   struct bpf_reg_state *dst_reg,
+				   bool range_right_open)
 {
 	struct bpf_reg_state *regs = state->regs, *reg;
+	u16 new_range;
 	int i;
 
-	if (dst_reg->off < 0)
+	if (dst_reg->off < 0 ||
+	    (dst_reg->off == 0 && range_right_open))
 		/* This doesn't give us any range */
 		return;
 
@@ -2436,9 +2449,13 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *state,
 		 */
 		return;
 
-	/* LLVM can generate four kind of checks:
+	new_range = dst_reg->off;
+	if (range_right_open)
+		new_range--;
+
+	/* Examples for register markings:
 	 *
-	 * Type 1/2:
+	 * pkt_data in dst register:
 	 *
 	 *   r2 = r3;
 	 *   r2 += 8;
@@ -2455,7 +2472,7 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *state,
 	 *     r2=pkt(id=n,off=8,r=0)
 	 *     r3=pkt(id=n,off=0,r=0)
 	 *
-	 * Type 3/4:
+	 * pkt_data in src register:
 	 *
 	 *   r2 = r3;
 	 *   r2 += 8;
@@ -2473,7 +2490,9 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *state,
 	 *     r3=pkt(id=n,off=0,r=0)
 	 *
 	 * Find register r3 and mark its range as r3=pkt(id=n,off=0,r=8)
-	 * so that range of bytes [r3, r3 + 8) is safe to access.
+	 * or r3=pkt(id=n,off=0,r=8-1), so that range of bytes [r3, r3 + 8)
+	 * and [r3, r3 + 8-1) respectively is safe to access depending on
+	 * the check.
 	 */
 
 	/* If our ids match, then we must have the same max_value.  And we
@@ -2484,14 +2503,14 @@ static void find_good_pkt_pointers(struct bpf_verifier_state *state,
 	for (i = 0; i < MAX_BPF_REG; i++)
 		if (regs[i].type == PTR_TO_PACKET && regs[i].id == dst_reg->id)
 			/* keep the maximum range already checked */
-			regs[i].range = max_t(u16, regs[i].range, dst_reg->off);
+			regs[i].range = max(regs[i].range, new_range);
 
 	for (i = 0; i < MAX_BPF_STACK; i += BPF_REG_SIZE) {
 		if (state->stack_slot_type[i] != STACK_SPILL)
 			continue;
 		reg = &state->spilled_regs[i / BPF_REG_SIZE];
 		if (reg->type == PTR_TO_PACKET && reg->id == dst_reg->id)
-			reg->range = max_t(u16, reg->range, dst_reg->off);
+			reg->range = max(reg->range, new_range);
 	}
 }
 
@@ -2855,19 +2874,43 @@ static int check_cond_jmp_op(struct bpf_verifier_env *env,
 	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JGT &&
 		   dst_reg->type == PTR_TO_PACKET &&
 		   regs[insn->src_reg].type == PTR_TO_PACKET_END) {
-		find_good_pkt_pointers(this_branch, dst_reg);
+		/* pkt_data' > pkt_end */
+		find_good_pkt_pointers(this_branch, dst_reg, false);
+	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JGT &&
+		   dst_reg->type == PTR_TO_PACKET_END &&
+		   regs[insn->src_reg].type == PTR_TO_PACKET) {
+		/* pkt_end > pkt_data' */
+		find_good_pkt_pointers(other_branch, &regs[insn->src_reg], true);
+	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JLT &&
+		   dst_reg->type == PTR_TO_PACKET &&
+		   regs[insn->src_reg].type == PTR_TO_PACKET_END) {
+		/* pkt_data' < pkt_end */
+		find_good_pkt_pointers(other_branch, dst_reg, true);
 	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JLT &&
+		   dst_reg->type == PTR_TO_PACKET_END &&
+		   regs[insn->src_reg].type == PTR_TO_PACKET) {
+		/* pkt_end < pkt_data' */
+		find_good_pkt_pointers(this_branch, &regs[insn->src_reg], false);
+	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JGE &&
 		   dst_reg->type == PTR_TO_PACKET &&
 		   regs[insn->src_reg].type == PTR_TO_PACKET_END) {
-		find_good_pkt_pointers(other_branch, dst_reg);
+		/* pkt_data' >= pkt_end */
+		find_good_pkt_pointers(this_branch, dst_reg, true);
 	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JGE &&
 		   dst_reg->type == PTR_TO_PACKET_END &&
 		   regs[insn->src_reg].type == PTR_TO_PACKET) {
-		find_good_pkt_pointers(other_branch, &regs[insn->src_reg]);
+		/* pkt_end >= pkt_data' */
+		find_good_pkt_pointers(other_branch, &regs[insn->src_reg], false);
+	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JLE &&
+		   dst_reg->type == PTR_TO_PACKET &&
+		   regs[insn->src_reg].type == PTR_TO_PACKET_END) {
+		/* pkt_data' <= pkt_end */
+		find_good_pkt_pointers(other_branch, dst_reg, false);
 	} else if (BPF_SRC(insn->code) == BPF_X && opcode == BPF_JLE &&
 		   dst_reg->type == PTR_TO_PACKET_END &&
 		   regs[insn->src_reg].type == PTR_TO_PACKET) {
-		find_good_pkt_pointers(this_branch, &regs[insn->src_reg]);
+		/* pkt_end <= pkt_data' */
+		find_good_pkt_pointers(this_branch, &regs[insn->src_reg], true);
 	} else if (is_pointer_value(env, insn->dst_reg)) {
 		verbose("R%d pointer comparison prohibited\n", insn->dst_reg);
 		return -EACCES;
@@ -4204,7 +4247,12 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env)
 		}
 
 		if (insn->imm == BPF_FUNC_redirect_map) {
-			u64 addr = (unsigned long)prog;
+			/* Note, we cannot use prog directly as imm as subsequent
+			 * rewrites would still change the prog pointer. The only
+			 * stable address we can use is aux, which also works with
+			 * prog clones during blinding.
+			 */
+			u64 addr = (unsigned long)prog->aux;
 			struct bpf_insn r4_ld[] = {
 				BPF_LD_IMM64(BPF_REG_4, addr),
 				*insn,
diff --git a/kernel/capability.c b/kernel/capability.c
index f97fe77ceb88..1e1c0236f55b 100644
--- a/kernel/capability.c
+++ b/kernel/capability.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/capability.c
  *
diff --git a/kernel/cgroup/Makefile b/kernel/cgroup/Makefile
index ce693ccb8c58..ae448f7632cc 100644
--- a/kernel/cgroup/Makefile
+++ b/kernel/cgroup/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y := cgroup.o namespace.o cgroup-v1.o
 
 obj-$(CONFIG_CGROUP_FREEZER) += freezer.o
diff --git a/kernel/cgroup/cgroup-internal.h b/kernel/cgroup/cgroup-internal.h
index 5151ff256c29..bf54ade001be 100644
--- a/kernel/cgroup/cgroup-internal.h
+++ b/kernel/cgroup/cgroup-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CGROUP_INTERNAL_H
 #define __CGROUP_INTERNAL_H
 
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index d6551cd45238..44857278eb8a 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2311,6 +2311,14 @@ out_release_tset:
 		list_del_init(&cset->mg_node);
 	}
 	spin_unlock_irq(&css_set_lock);
+
+	/*
+	 * Re-initialize the cgroup_taskset structure in case it is reused
+	 * again in another cgroup_migrate_add_task()/cgroup_migrate_execute()
+	 * iteration.
+	 */
+	tset->nr_tasks = 0;
+	tset->csets    = &tset->src_csets;
 	return ret;
 }
 
diff --git a/kernel/cgroup/cpuset.c b/kernel/cgroup/cpuset.c
index 4657e2924ecb..f7efa7b4d825 100644
--- a/kernel/cgroup/cpuset.c
+++ b/kernel/cgroup/cpuset.c
@@ -57,7 +57,7 @@
 #include <linux/backing-dev.h>
 #include <linux/sort.h>
 #include <linux/oom.h>
-
+#include <linux/sched/isolation.h>
 #include <linux/uaccess.h>
 #include <linux/atomic.h>
 #include <linux/mutex.h>
@@ -656,7 +656,6 @@ static int generate_sched_domains(cpumask_var_t **domains,
 	int csn;		/* how many cpuset ptrs in csa so far */
 	int i, j, k;		/* indices for partition finding loops */
 	cpumask_var_t *doms;	/* resulting partition; i.e. sched domains */
-	cpumask_var_t non_isolated_cpus;  /* load balanced CPUs */
 	struct sched_domain_attr *dattr;  /* attributes for custom domains */
 	int ndoms = 0;		/* number of sched domains in result */
 	int nslot;		/* next empty doms[] struct cpumask slot */
@@ -666,10 +665,6 @@ static int generate_sched_domains(cpumask_var_t **domains,
 	dattr = NULL;
 	csa = NULL;
 
-	if (!alloc_cpumask_var(&non_isolated_cpus, GFP_KERNEL))
-		goto done;
-	cpumask_andnot(non_isolated_cpus, cpu_possible_mask, cpu_isolated_map);
-
 	/* Special case for the 99% of systems with one, full, sched domain */
 	if (is_sched_load_balance(&top_cpuset)) {
 		ndoms = 1;
@@ -683,7 +678,7 @@ static int generate_sched_domains(cpumask_var_t **domains,
 			update_domain_attr_tree(dattr, &top_cpuset);
 		}
 		cpumask_and(doms[0], top_cpuset.effective_cpus,
-				     non_isolated_cpus);
+			    housekeeping_cpumask(HK_FLAG_DOMAIN));
 
 		goto done;
 	}
@@ -707,7 +702,8 @@ static int generate_sched_domains(cpumask_var_t **domains,
 		 */
 		if (!cpumask_empty(cp->cpus_allowed) &&
 		    !(is_sched_load_balance(cp) &&
-		      cpumask_intersects(cp->cpus_allowed, non_isolated_cpus)))
+		      cpumask_intersects(cp->cpus_allowed,
+					 housekeeping_cpumask(HK_FLAG_DOMAIN))))
 			continue;
 
 		if (is_sched_load_balance(cp))
@@ -789,7 +785,7 @@ restart:
 
 			if (apn == b->pn) {
 				cpumask_or(dp, dp, b->effective_cpus);
-				cpumask_and(dp, dp, non_isolated_cpus);
+				cpumask_and(dp, dp, housekeeping_cpumask(HK_FLAG_DOMAIN));
 				if (dattr)
 					update_domain_attr_tree(dattr + nslot, b);
 
@@ -802,7 +798,6 @@ restart:
 	BUG_ON(nslot != ndoms);
 
 done:
-	free_cpumask_var(non_isolated_cpus);
 	kfree(csa);
 
 	/*
diff --git a/kernel/cgroup/debug.c b/kernel/cgroup/debug.c
index f661b4cc5efd..5f780d8f6a9d 100644
--- a/kernel/cgroup/debug.c
+++ b/kernel/cgroup/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Debug controller
  *
diff --git a/kernel/cgroup/namespace.c b/kernel/cgroup/namespace.c
index 66129eb4371d..b05f1dd58a62 100644
--- a/kernel/cgroup/namespace.c
+++ b/kernel/cgroup/namespace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "cgroup-internal.h"
 
 #include <linux/sched/task.h>
diff --git a/kernel/compat.c b/kernel/compat.c
index 6f0a0e723a06..772e038d04d9 100644
--- a/kernel/compat.c
+++ b/kernel/compat.c
@@ -200,29 +200,6 @@ int compat_put_timespec(const struct timespec *ts, void __user *uts)
 }
 EXPORT_SYMBOL_GPL(compat_put_timespec);
 
-int compat_convert_timespec(struct timespec __user **kts,
-			    const void __user *cts)
-{
-	struct timespec ts;
-	struct timespec __user *uts;
-
-	if (!cts || COMPAT_USE_64BIT_TIME) {
-		*kts = (struct timespec __user *)cts;
-		return 0;
-	}
-
-	uts = compat_alloc_user_space(sizeof(ts));
-	if (!uts)
-		return -EFAULT;
-	if (compat_get_timespec(&ts, cts))
-		return -EFAULT;
-	if (copy_to_user(uts, &ts, sizeof(ts)))
-		return -EFAULT;
-
-	*kts = uts;
-	return 0;
-}
-
 int get_compat_itimerval(struct itimerval *o, const struct compat_itimerval __user *i)
 {
 	struct compat_itimerval v32;
diff --git a/kernel/cpu.c b/kernel/cpu.c
index acf5308fad51..04892a82f6ac 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -24,6 +24,7 @@
 #include <linux/lockdep.h>
 #include <linux/tick.h>
 #include <linux/irq.h>
+#include <linux/nmi.h>
 #include <linux/smpboot.h>
 #include <linux/relay.h>
 #include <linux/slab.h>
@@ -46,11 +47,13 @@
  * @bringup:	Single callback bringup or teardown selector
  * @cb_state:	The state for a single callback (install/uninstall)
  * @result:	Result of the operation
- * @done:	Signal completion to the issuer of the task
+ * @done_up:	Signal completion to the issuer of the task for cpu-up
+ * @done_down:	Signal completion to the issuer of the task for cpu-down
  */
 struct cpuhp_cpu_state {
 	enum cpuhp_state	state;
 	enum cpuhp_state	target;
+	enum cpuhp_state	fail;
 #ifdef CONFIG_SMP
 	struct task_struct	*thread;
 	bool			should_run;
@@ -58,18 +61,39 @@ struct cpuhp_cpu_state {
 	bool			single;
 	bool			bringup;
 	struct hlist_node	*node;
+	struct hlist_node	*last;
 	enum cpuhp_state	cb_state;
 	int			result;
-	struct completion	done;
+	struct completion	done_up;
+	struct completion	done_down;
 #endif
 };
 
-static DEFINE_PER_CPU(struct cpuhp_cpu_state, cpuhp_state);
+static DEFINE_PER_CPU(struct cpuhp_cpu_state, cpuhp_state) = {
+	.fail = CPUHP_INVALID,
+};
 
 #if defined(CONFIG_LOCKDEP) && defined(CONFIG_SMP)
-static struct lock_class_key cpuhp_state_key;
-static struct lockdep_map cpuhp_state_lock_map =
-	STATIC_LOCKDEP_MAP_INIT("cpuhp_state", &cpuhp_state_key);
+static struct lockdep_map cpuhp_state_up_map =
+	STATIC_LOCKDEP_MAP_INIT("cpuhp_state-up", &cpuhp_state_up_map);
+static struct lockdep_map cpuhp_state_down_map =
+	STATIC_LOCKDEP_MAP_INIT("cpuhp_state-down", &cpuhp_state_down_map);
+
+
+static void inline cpuhp_lock_acquire(bool bringup)
+{
+	lock_map_acquire(bringup ? &cpuhp_state_up_map : &cpuhp_state_down_map);
+}
+
+static void inline cpuhp_lock_release(bool bringup)
+{
+	lock_map_release(bringup ? &cpuhp_state_up_map : &cpuhp_state_down_map);
+}
+#else
+
+static void inline cpuhp_lock_acquire(bool bringup) { }
+static void inline cpuhp_lock_release(bool bringup) { }
+
 #endif
 
 /**
@@ -123,13 +147,16 @@ static struct cpuhp_step *cpuhp_get_step(enum cpuhp_state state)
 /**
  * cpuhp_invoke_callback _ Invoke the callbacks for a given state
  * @cpu:	The cpu for which the callback should be invoked
- * @step:	The step in the state machine
+ * @state:	The state to do callbacks for
  * @bringup:	True if the bringup callback should be invoked
+ * @node:	For multi-instance, do a single entry callback for install/remove
+ * @lastp:	For multi-instance rollback, remember how far we got
  *
  * Called from cpu hotplug and from the state register machinery.
  */
 static int cpuhp_invoke_callback(unsigned int cpu, enum cpuhp_state state,
-				 bool bringup, struct hlist_node *node)
+				 bool bringup, struct hlist_node *node,
+				 struct hlist_node **lastp)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
 	struct cpuhp_step *step = cpuhp_get_step(state);
@@ -137,7 +164,17 @@ static int cpuhp_invoke_callback(unsigned int cpu, enum cpuhp_state state,
 	int (*cb)(unsigned int cpu);
 	int ret, cnt;
 
+	if (st->fail == state) {
+		st->fail = CPUHP_INVALID;
+
+		if (!(bringup ? step->startup.single : step->teardown.single))
+			return 0;
+
+		return -EAGAIN;
+	}
+
 	if (!step->multi_instance) {
+		WARN_ON_ONCE(lastp && *lastp);
 		cb = bringup ? step->startup.single : step->teardown.single;
 		if (!cb)
 			return 0;
@@ -152,6 +189,7 @@ static int cpuhp_invoke_callback(unsigned int cpu, enum cpuhp_state state,
 
 	/* Single invocation for instance add/remove */
 	if (node) {
+		WARN_ON_ONCE(lastp && *lastp);
 		trace_cpuhp_multi_enter(cpu, st->target, state, cbm, node);
 		ret = cbm(cpu, node);
 		trace_cpuhp_exit(cpu, st->state, state, ret);
@@ -161,13 +199,23 @@ static int cpuhp_invoke_callback(unsigned int cpu, enum cpuhp_state state,
 	/* State transition. Invoke on all instances */
 	cnt = 0;
 	hlist_for_each(node, &step->list) {
+		if (lastp && node == *lastp)
+			break;
+
 		trace_cpuhp_multi_enter(cpu, st->target, state, cbm, node);
 		ret = cbm(cpu, node);
 		trace_cpuhp_exit(cpu, st->state, state, ret);
-		if (ret)
-			goto err;
+		if (ret) {
+			if (!lastp)
+				goto err;
+
+			*lastp = node;
+			return ret;
+		}
 		cnt++;
 	}
+	if (lastp)
+		*lastp = NULL;
 	return 0;
 err:
 	/* Rollback the instances if one failed */
@@ -178,12 +226,39 @@ err:
 	hlist_for_each(node, &step->list) {
 		if (!cnt--)
 			break;
-		cbm(cpu, node);
+
+		trace_cpuhp_multi_enter(cpu, st->target, state, cbm, node);
+		ret = cbm(cpu, node);
+		trace_cpuhp_exit(cpu, st->state, state, ret);
+		/*
+		 * Rollback must not fail,
+		 */
+		WARN_ON_ONCE(ret);
 	}
 	return ret;
 }
 
 #ifdef CONFIG_SMP
+static inline void wait_for_ap_thread(struct cpuhp_cpu_state *st, bool bringup)
+{
+	struct completion *done = bringup ? &st->done_up : &st->done_down;
+	wait_for_completion(done);
+}
+
+static inline void complete_ap_thread(struct cpuhp_cpu_state *st, bool bringup)
+{
+	struct completion *done = bringup ? &st->done_up : &st->done_down;
+	complete(done);
+}
+
+/*
+ * The former STARTING/DYING states, ran with IRQs disabled and must not fail.
+ */
+static bool cpuhp_is_atomic_state(enum cpuhp_state state)
+{
+	return CPUHP_AP_IDLE_DEAD <= state && state < CPUHP_AP_ONLINE;
+}
+
 /* Serializes the updates to cpu_online_mask, cpu_present_mask */
 static DEFINE_MUTEX(cpu_add_remove_lock);
 bool cpuhp_tasks_frozen;
@@ -271,14 +346,79 @@ void cpu_hotplug_enable(void)
 EXPORT_SYMBOL_GPL(cpu_hotplug_enable);
 #endif	/* CONFIG_HOTPLUG_CPU */
 
-static void __cpuhp_kick_ap_work(struct cpuhp_cpu_state *st);
+static inline enum cpuhp_state
+cpuhp_set_state(struct cpuhp_cpu_state *st, enum cpuhp_state target)
+{
+	enum cpuhp_state prev_state = st->state;
+
+	st->rollback = false;
+	st->last = NULL;
+
+	st->target = target;
+	st->single = false;
+	st->bringup = st->state < target;
+
+	return prev_state;
+}
+
+static inline void
+cpuhp_reset_state(struct cpuhp_cpu_state *st, enum cpuhp_state prev_state)
+{
+	st->rollback = true;
+
+	/*
+	 * If we have st->last we need to undo partial multi_instance of this
+	 * state first. Otherwise start undo at the previous state.
+	 */
+	if (!st->last) {
+		if (st->bringup)
+			st->state--;
+		else
+			st->state++;
+	}
+
+	st->target = prev_state;
+	st->bringup = !st->bringup;
+}
+
+/* Regular hotplug invocation of the AP hotplug thread */
+static void __cpuhp_kick_ap(struct cpuhp_cpu_state *st)
+{
+	if (!st->single && st->state == st->target)
+		return;
+
+	st->result = 0;
+	/*
+	 * Make sure the above stores are visible before should_run becomes
+	 * true. Paired with the mb() above in cpuhp_thread_fun()
+	 */
+	smp_mb();
+	st->should_run = true;
+	wake_up_process(st->thread);
+	wait_for_ap_thread(st, st->bringup);
+}
+
+static int cpuhp_kick_ap(struct cpuhp_cpu_state *st, enum cpuhp_state target)
+{
+	enum cpuhp_state prev_state;
+	int ret;
+
+	prev_state = cpuhp_set_state(st, target);
+	__cpuhp_kick_ap(st);
+	if ((ret = st->result)) {
+		cpuhp_reset_state(st, prev_state);
+		__cpuhp_kick_ap(st);
+	}
+
+	return ret;
+}
 
 static int bringup_wait_for_ap(unsigned int cpu)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
 
 	/* Wait for the CPU to reach CPUHP_AP_ONLINE_IDLE */
-	wait_for_completion(&st->done);
+	wait_for_ap_thread(st, true);
 	if (WARN_ON_ONCE((!cpu_online(cpu))))
 		return -ECANCELED;
 
@@ -286,12 +426,10 @@ static int bringup_wait_for_ap(unsigned int cpu)
 	stop_machine_unpark(cpu);
 	kthread_unpark(st->thread);
 
-	/* Should we go further up ? */
-	if (st->target > CPUHP_AP_ONLINE_IDLE) {
-		__cpuhp_kick_ap_work(st);
-		wait_for_completion(&st->done);
-	}
-	return st->result;
+	if (st->target <= CPUHP_AP_ONLINE_IDLE)
+		return 0;
+
+	return cpuhp_kick_ap(st, st->target);
 }
 
 static int bringup_cpu(unsigned int cpu)
@@ -317,32 +455,6 @@ static int bringup_cpu(unsigned int cpu)
 /*
  * Hotplug state machine related functions
  */
-static void undo_cpu_down(unsigned int cpu, struct cpuhp_cpu_state *st)
-{
-	for (st->state++; st->state < st->target; st->state++) {
-		struct cpuhp_step *step = cpuhp_get_step(st->state);
-
-		if (!step->skip_onerr)
-			cpuhp_invoke_callback(cpu, st->state, true, NULL);
-	}
-}
-
-static int cpuhp_down_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
-				enum cpuhp_state target)
-{
-	enum cpuhp_state prev_state = st->state;
-	int ret = 0;
-
-	for (; st->state > target; st->state--) {
-		ret = cpuhp_invoke_callback(cpu, st->state, false, NULL);
-		if (ret) {
-			st->target = prev_state;
-			undo_cpu_down(cpu, st);
-			break;
-		}
-	}
-	return ret;
-}
 
 static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st)
 {
@@ -350,7 +462,7 @@ static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st)
 		struct cpuhp_step *step = cpuhp_get_step(st->state);
 
 		if (!step->skip_onerr)
-			cpuhp_invoke_callback(cpu, st->state, false, NULL);
+			cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL);
 	}
 }
 
@@ -362,7 +474,7 @@ static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
 
 	while (st->state < target) {
 		st->state++;
-		ret = cpuhp_invoke_callback(cpu, st->state, true, NULL);
+		ret = cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL);
 		if (ret) {
 			st->target = prev_state;
 			undo_cpu_up(cpu, st);
@@ -379,7 +491,8 @@ static void cpuhp_create(unsigned int cpu)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
 
-	init_completion(&st->done);
+	init_completion(&st->done_up);
+	init_completion(&st->done_down);
 }
 
 static int cpuhp_should_run(unsigned int cpu)
@@ -389,69 +502,90 @@ static int cpuhp_should_run(unsigned int cpu)
 	return st->should_run;
 }
 
-/* Execute the teardown callbacks. Used to be CPU_DOWN_PREPARE */
-static int cpuhp_ap_offline(unsigned int cpu, struct cpuhp_cpu_state *st)
-{
-	enum cpuhp_state target = max((int)st->target, CPUHP_TEARDOWN_CPU);
-
-	return cpuhp_down_callbacks(cpu, st, target);
-}
-
-/* Execute the online startup callbacks. Used to be CPU_ONLINE */
-static int cpuhp_ap_online(unsigned int cpu, struct cpuhp_cpu_state *st)
-{
-	return cpuhp_up_callbacks(cpu, st, st->target);
-}
-
 /*
  * Execute teardown/startup callbacks on the plugged cpu. Also used to invoke
  * callbacks when a state gets [un]installed at runtime.
+ *
+ * Each invocation of this function by the smpboot thread does a single AP
+ * state callback.
+ *
+ * It has 3 modes of operation:
+ *  - single: runs st->cb_state
+ *  - up:     runs ++st->state, while st->state < st->target
+ *  - down:   runs st->state--, while st->state > st->target
+ *
+ * When complete or on error, should_run is cleared and the completion is fired.
  */
 static void cpuhp_thread_fun(unsigned int cpu)
 {
 	struct cpuhp_cpu_state *st = this_cpu_ptr(&cpuhp_state);
-	int ret = 0;
+	bool bringup = st->bringup;
+	enum cpuhp_state state;
 
 	/*
-	 * Paired with the mb() in cpuhp_kick_ap_work and
-	 * cpuhp_invoke_ap_callback, so the work set is consistent visible.
+	 * ACQUIRE for the cpuhp_should_run() load of ->should_run. Ensures
+	 * that if we see ->should_run we also see the rest of the state.
 	 */
 	smp_mb();
-	if (!st->should_run)
+
+	if (WARN_ON_ONCE(!st->should_run))
 		return;
 
-	st->should_run = false;
+	cpuhp_lock_acquire(bringup);
 
-	lock_map_acquire(&cpuhp_state_lock_map);
-	/* Single callback invocation for [un]install ? */
 	if (st->single) {
-		if (st->cb_state < CPUHP_AP_ONLINE) {
-			local_irq_disable();
-			ret = cpuhp_invoke_callback(cpu, st->cb_state,
-						    st->bringup, st->node);
-			local_irq_enable();
+		state = st->cb_state;
+		st->should_run = false;
+	} else {
+		if (bringup) {
+			st->state++;
+			state = st->state;
+			st->should_run = (st->state < st->target);
+			WARN_ON_ONCE(st->state > st->target);
 		} else {
-			ret = cpuhp_invoke_callback(cpu, st->cb_state,
-						    st->bringup, st->node);
+			state = st->state;
+			st->state--;
+			st->should_run = (st->state > st->target);
+			WARN_ON_ONCE(st->state < st->target);
 		}
-	} else if (st->rollback) {
-		BUG_ON(st->state < CPUHP_AP_ONLINE_IDLE);
+	}
+
+	WARN_ON_ONCE(!cpuhp_is_ap_state(state));
 
-		undo_cpu_down(cpu, st);
-		st->rollback = false;
+	if (st->rollback) {
+		struct cpuhp_step *step = cpuhp_get_step(state);
+		if (step->skip_onerr)
+			goto next;
+	}
+
+	if (cpuhp_is_atomic_state(state)) {
+		local_irq_disable();
+		st->result = cpuhp_invoke_callback(cpu, state, bringup, st->node, &st->last);
+		local_irq_enable();
+
+		/*
+		 * STARTING/DYING must not fail!
+		 */
+		WARN_ON_ONCE(st->result);
 	} else {
-		/* Cannot happen .... */
-		BUG_ON(st->state < CPUHP_AP_ONLINE_IDLE);
-
-		/* Regular hotplug work */
-		if (st->state < st->target)
-			ret = cpuhp_ap_online(cpu, st);
-		else if (st->state > st->target)
-			ret = cpuhp_ap_offline(cpu, st);
+		st->result = cpuhp_invoke_callback(cpu, state, bringup, st->node, &st->last);
+	}
+
+	if (st->result) {
+		/*
+		 * If we fail on a rollback, we're up a creek without no
+		 * paddle, no way forward, no way back. We loose, thanks for
+		 * playing.
+		 */
+		WARN_ON_ONCE(st->rollback);
+		st->should_run = false;
 	}
-	lock_map_release(&cpuhp_state_lock_map);
-	st->result = ret;
-	complete(&st->done);
+
+next:
+	cpuhp_lock_release(bringup);
+
+	if (!st->should_run)
+		complete_ap_thread(st, bringup);
 }
 
 /* Invoke a single callback on a remote cpu */
@@ -460,62 +594,69 @@ cpuhp_invoke_ap_callback(int cpu, enum cpuhp_state state, bool bringup,
 			 struct hlist_node *node)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
+	int ret;
 
 	if (!cpu_online(cpu))
 		return 0;
 
-	lock_map_acquire(&cpuhp_state_lock_map);
-	lock_map_release(&cpuhp_state_lock_map);
+	cpuhp_lock_acquire(false);
+	cpuhp_lock_release(false);
+
+	cpuhp_lock_acquire(true);
+	cpuhp_lock_release(true);
 
 	/*
 	 * If we are up and running, use the hotplug thread. For early calls
 	 * we invoke the thread function directly.
 	 */
 	if (!st->thread)
-		return cpuhp_invoke_callback(cpu, state, bringup, node);
+		return cpuhp_invoke_callback(cpu, state, bringup, node, NULL);
 
+	st->rollback = false;
+	st->last = NULL;
+
+	st->node = node;
+	st->bringup = bringup;
 	st->cb_state = state;
 	st->single = true;
-	st->bringup = bringup;
-	st->node = node;
+
+	__cpuhp_kick_ap(st);
 
 	/*
-	 * Make sure the above stores are visible before should_run becomes
-	 * true. Paired with the mb() above in cpuhp_thread_fun()
+	 * If we failed and did a partial, do a rollback.
 	 */
-	smp_mb();
-	st->should_run = true;
-	wake_up_process(st->thread);
-	wait_for_completion(&st->done);
-	return st->result;
-}
+	if ((ret = st->result) && st->last) {
+		st->rollback = true;
+		st->bringup = !bringup;
+
+		__cpuhp_kick_ap(st);
+	}
 
-/* Regular hotplug invocation of the AP hotplug thread */
-static void __cpuhp_kick_ap_work(struct cpuhp_cpu_state *st)
-{
-	st->result = 0;
-	st->single = false;
 	/*
-	 * Make sure the above stores are visible before should_run becomes
-	 * true. Paired with the mb() above in cpuhp_thread_fun()
+	 * Clean up the leftovers so the next hotplug operation wont use stale
+	 * data.
 	 */
-	smp_mb();
-	st->should_run = true;
-	wake_up_process(st->thread);
+	st->node = st->last = NULL;
+	return ret;
 }
 
 static int cpuhp_kick_ap_work(unsigned int cpu)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
-	enum cpuhp_state state = st->state;
+	enum cpuhp_state prev_state = st->state;
+	int ret;
+
+	cpuhp_lock_acquire(false);
+	cpuhp_lock_release(false);
+
+	cpuhp_lock_acquire(true);
+	cpuhp_lock_release(true);
 
-	trace_cpuhp_enter(cpu, st->target, state, cpuhp_kick_ap_work);
-	lock_map_acquire(&cpuhp_state_lock_map);
-	lock_map_release(&cpuhp_state_lock_map);
-	__cpuhp_kick_ap_work(st);
-	wait_for_completion(&st->done);
-	trace_cpuhp_exit(cpu, st->state, state, st->result);
-	return st->result;
+	trace_cpuhp_enter(cpu, st->target, prev_state, cpuhp_kick_ap_work);
+	ret = cpuhp_kick_ap(st, st->target);
+	trace_cpuhp_exit(cpu, st->state, prev_state, ret);
+
+	return ret;
 }
 
 static struct smp_hotplug_thread cpuhp_threads = {
@@ -581,6 +722,7 @@ static int take_cpu_down(void *_param)
 	struct cpuhp_cpu_state *st = this_cpu_ptr(&cpuhp_state);
 	enum cpuhp_state target = max((int)st->target, CPUHP_AP_OFFLINE);
 	int err, cpu = smp_processor_id();
+	int ret;
 
 	/* Ensure this CPU doesn't handle any more interrupts. */
 	err = __cpu_disable();
@@ -594,8 +736,13 @@ static int take_cpu_down(void *_param)
 	WARN_ON(st->state != CPUHP_TEARDOWN_CPU);
 	st->state--;
 	/* Invoke the former CPU_DYING callbacks */
-	for (; st->state > target; st->state--)
-		cpuhp_invoke_callback(cpu, st->state, false, NULL);
+	for (; st->state > target; st->state--) {
+		ret = cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL);
+		/*
+		 * DYING must not fail!
+		 */
+		WARN_ON_ONCE(ret);
+	}
 
 	/* Give up timekeeping duties */
 	tick_handover_do_timer();
@@ -639,7 +786,7 @@ static int takedown_cpu(unsigned int cpu)
 	 *
 	 * Wait for the stop thread to go away.
 	 */
-	wait_for_completion(&st->done);
+	wait_for_ap_thread(st, false);
 	BUG_ON(st->state != CPUHP_AP_IDLE_DEAD);
 
 	/* Interrupts are moved away from the dying cpu, reenable alloc/free */
@@ -658,7 +805,7 @@ static void cpuhp_complete_idle_dead(void *arg)
 {
 	struct cpuhp_cpu_state *st = arg;
 
-	complete(&st->done);
+	complete_ap_thread(st, false);
 }
 
 void cpuhp_report_idle_dead(void)
@@ -676,11 +823,32 @@ void cpuhp_report_idle_dead(void)
 				 cpuhp_complete_idle_dead, st, 0);
 }
 
-#else
-#define takedown_cpu		NULL
-#endif
+static void undo_cpu_down(unsigned int cpu, struct cpuhp_cpu_state *st)
+{
+	for (st->state++; st->state < st->target; st->state++) {
+		struct cpuhp_step *step = cpuhp_get_step(st->state);
 
-#ifdef CONFIG_HOTPLUG_CPU
+		if (!step->skip_onerr)
+			cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL);
+	}
+}
+
+static int cpuhp_down_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
+				enum cpuhp_state target)
+{
+	enum cpuhp_state prev_state = st->state;
+	int ret = 0;
+
+	for (; st->state > target; st->state--) {
+		ret = cpuhp_invoke_callback(cpu, st->state, false, NULL, NULL);
+		if (ret) {
+			st->target = prev_state;
+			undo_cpu_down(cpu, st);
+			break;
+		}
+	}
+	return ret;
+}
 
 /* Requires cpu_add_remove_lock to be held */
 static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
@@ -699,13 +867,13 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
 
 	cpuhp_tasks_frozen = tasks_frozen;
 
-	prev_state = st->state;
-	st->target = target;
+	prev_state = cpuhp_set_state(st, target);
 	/*
 	 * If the current CPU state is in the range of the AP hotplug thread,
 	 * then we need to kick the thread.
 	 */
 	if (st->state > CPUHP_TEARDOWN_CPU) {
+		st->target = max((int)target, CPUHP_TEARDOWN_CPU);
 		ret = cpuhp_kick_ap_work(cpu);
 		/*
 		 * The AP side has done the error rollback already. Just
@@ -720,6 +888,8 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
 		 */
 		if (st->state > CPUHP_TEARDOWN_CPU)
 			goto out;
+
+		st->target = target;
 	}
 	/*
 	 * The AP brought itself down to CPUHP_TEARDOWN_CPU. So we need
@@ -727,13 +897,17 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen,
 	 */
 	ret = cpuhp_down_callbacks(cpu, st, target);
 	if (ret && st->state > CPUHP_TEARDOWN_CPU && st->state < prev_state) {
-		st->target = prev_state;
-		st->rollback = true;
-		cpuhp_kick_ap_work(cpu);
+		cpuhp_reset_state(st, prev_state);
+		__cpuhp_kick_ap(st);
 	}
 
 out:
 	cpus_write_unlock();
+	/*
+	 * Do post unplug cleanup. This is still protected against
+	 * concurrent CPU hotplug via cpu_add_remove_lock.
+	 */
+	lockup_detector_cleanup();
 	return ret;
 }
 
@@ -754,11 +928,15 @@ out:
 	cpu_maps_update_done();
 	return err;
 }
+
 int cpu_down(unsigned int cpu)
 {
 	return do_cpu_down(cpu, CPUHP_OFFLINE);
 }
 EXPORT_SYMBOL(cpu_down);
+
+#else
+#define takedown_cpu		NULL
 #endif /*CONFIG_HOTPLUG_CPU*/
 
 /**
@@ -772,11 +950,16 @@ void notify_cpu_starting(unsigned int cpu)
 {
 	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, cpu);
 	enum cpuhp_state target = min((int)st->target, CPUHP_AP_ONLINE);
+	int ret;
 
 	rcu_cpu_starting(cpu);	/* Enables RCU usage on this CPU. */
 	while (st->state < target) {
 		st->state++;
-		cpuhp_invoke_callback(cpu, st->state, true, NULL);
+		ret = cpuhp_invoke_callback(cpu, st->state, true, NULL, NULL);
+		/*
+		 * STARTING must not fail!
+		 */
+		WARN_ON_ONCE(ret);
 	}
 }
 
@@ -794,7 +977,7 @@ void cpuhp_online_idle(enum cpuhp_state state)
 		return;
 
 	st->state = CPUHP_AP_ONLINE_IDLE;
-	complete(&st->done);
+	complete_ap_thread(st, true);
 }
 
 /* Requires cpu_add_remove_lock to be held */
@@ -829,7 +1012,7 @@ static int _cpu_up(unsigned int cpu, int tasks_frozen, enum cpuhp_state target)
 
 	cpuhp_tasks_frozen = tasks_frozen;
 
-	st->target = target;
+	cpuhp_set_state(st, target);
 	/*
 	 * If the current CPU state is in the range of the AP hotplug thread,
 	 * then we need to kick the thread once more.
@@ -1296,6 +1479,10 @@ static int cpuhp_issue_call(int cpu, enum cpuhp_state state, bool bringup,
 	struct cpuhp_step *sp = cpuhp_get_step(state);
 	int ret;
 
+	/*
+	 * If there's nothing to do, we done.
+	 * Relies on the union for multi_instance.
+	 */
 	if ((bringup && !sp->startup.single) ||
 	    (!bringup && !sp->teardown.single))
 		return 0;
@@ -1307,9 +1494,9 @@ static int cpuhp_issue_call(int cpu, enum cpuhp_state state, bool bringup,
 	if (cpuhp_is_ap_state(state))
 		ret = cpuhp_invoke_ap_callback(cpu, state, bringup, node);
 	else
-		ret = cpuhp_invoke_callback(cpu, state, bringup, node);
+		ret = cpuhp_invoke_callback(cpu, state, bringup, node, NULL);
 #else
-	ret = cpuhp_invoke_callback(cpu, state, bringup, node);
+	ret = cpuhp_invoke_callback(cpu, state, bringup, node, NULL);
 #endif
 	BUG_ON(ret && !bringup);
 	return ret;
@@ -1641,9 +1828,55 @@ static ssize_t show_cpuhp_target(struct device *dev,
 }
 static DEVICE_ATTR(target, 0644, show_cpuhp_target, write_cpuhp_target);
 
+
+static ssize_t write_cpuhp_fail(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, dev->id);
+	struct cpuhp_step *sp;
+	int fail, ret;
+
+	ret = kstrtoint(buf, 10, &fail);
+	if (ret)
+		return ret;
+
+	/*
+	 * Cannot fail STARTING/DYING callbacks.
+	 */
+	if (cpuhp_is_atomic_state(fail))
+		return -EINVAL;
+
+	/*
+	 * Cannot fail anything that doesn't have callbacks.
+	 */
+	mutex_lock(&cpuhp_state_mutex);
+	sp = cpuhp_get_step(fail);
+	if (!sp->startup.single && !sp->teardown.single)
+		ret = -EINVAL;
+	mutex_unlock(&cpuhp_state_mutex);
+	if (ret)
+		return ret;
+
+	st->fail = fail;
+
+	return count;
+}
+
+static ssize_t show_cpuhp_fail(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	struct cpuhp_cpu_state *st = per_cpu_ptr(&cpuhp_state, dev->id);
+
+	return sprintf(buf, "%d\n", st->fail);
+}
+
+static DEVICE_ATTR(fail, 0644, show_cpuhp_fail, write_cpuhp_fail);
+
 static struct attribute *cpuhp_cpu_attrs[] = {
 	&dev_attr_state.attr,
 	&dev_attr_target.attr,
+	&dev_attr_fail.attr,
 	NULL
 };
 
diff --git a/kernel/dma.c b/kernel/dma.c
index 6c6262f86c17..3506fc34a712 100644
--- a/kernel/dma.c
+++ b/kernel/dma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/dma.c: A DMA channel allocator. Inspired by linux/kernel/irq.c.
  *
diff --git a/kernel/elfcore.c b/kernel/elfcore.c
index e556751d15d9..fc482c8e0bd8 100644
--- a/kernel/elfcore.c
+++ b/kernel/elfcore.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/elf.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
diff --git a/kernel/events/Makefile b/kernel/events/Makefile
index 2925188f50ea..3c022e33c109 100644
--- a/kernel/events/Makefile
+++ b/kernel/events/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_core.o = $(CC_FLAGS_FTRACE)
 endif
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 3e691b75b2db..4c39c05e029a 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -209,7 +209,7 @@ static int event_function(void *info)
 	struct perf_event_context *task_ctx = cpuctx->task_ctx;
 	int ret = 0;
 
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	perf_ctx_lock(cpuctx, task_ctx);
 	/*
@@ -306,7 +306,7 @@ static void event_function_local(struct perf_event *event, event_f func, void *d
 	struct task_struct *task = READ_ONCE(ctx->task);
 	struct perf_event_context *task_ctx = NULL;
 
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	if (task) {
 		if (task == TASK_TOMBSTONE)
@@ -582,6 +582,88 @@ static inline u64 perf_event_clock(struct perf_event *event)
 	return event->clock();
 }
 
+/*
+ * State based event timekeeping...
+ *
+ * The basic idea is to use event->state to determine which (if any) time
+ * fields to increment with the current delta. This means we only need to
+ * update timestamps when we change state or when they are explicitly requested
+ * (read).
+ *
+ * Event groups make things a little more complicated, but not terribly so. The
+ * rules for a group are that if the group leader is OFF the entire group is
+ * OFF, irrespecive of what the group member states are. This results in
+ * __perf_effective_state().
+ *
+ * A futher ramification is that when a group leader flips between OFF and
+ * !OFF, we need to update all group member times.
+ *
+ *
+ * NOTE: perf_event_time() is based on the (cgroup) context time, and thus we
+ * need to make sure the relevant context time is updated before we try and
+ * update our timestamps.
+ */
+
+static __always_inline enum perf_event_state
+__perf_effective_state(struct perf_event *event)
+{
+	struct perf_event *leader = event->group_leader;
+
+	if (leader->state <= PERF_EVENT_STATE_OFF)
+		return leader->state;
+
+	return event->state;
+}
+
+static __always_inline void
+__perf_update_times(struct perf_event *event, u64 now, u64 *enabled, u64 *running)
+{
+	enum perf_event_state state = __perf_effective_state(event);
+	u64 delta = now - event->tstamp;
+
+	*enabled = event->total_time_enabled;
+	if (state >= PERF_EVENT_STATE_INACTIVE)
+		*enabled += delta;
+
+	*running = event->total_time_running;
+	if (state >= PERF_EVENT_STATE_ACTIVE)
+		*running += delta;
+}
+
+static void perf_event_update_time(struct perf_event *event)
+{
+	u64 now = perf_event_time(event);
+
+	__perf_update_times(event, now, &event->total_time_enabled,
+					&event->total_time_running);
+	event->tstamp = now;
+}
+
+static void perf_event_update_sibling_time(struct perf_event *leader)
+{
+	struct perf_event *sibling;
+
+	list_for_each_entry(sibling, &leader->sibling_list, group_entry)
+		perf_event_update_time(sibling);
+}
+
+static void
+perf_event_set_state(struct perf_event *event, enum perf_event_state state)
+{
+	if (event->state == state)
+		return;
+
+	perf_event_update_time(event);
+	/*
+	 * If a group leader gets enabled/disabled all its siblings
+	 * are affected too.
+	 */
+	if ((event->state < 0) ^ (state < 0))
+		perf_event_update_sibling_time(event);
+
+	WRITE_ONCE(event->state, state);
+}
+
 #ifdef CONFIG_CGROUP_PERF
 
 static inline bool
@@ -662,7 +744,7 @@ static inline void update_cgrp_time_from_event(struct perf_event *event)
 	/*
 	 * Do not update time when cgroup is not active
 	 */
-	if (cgrp == event->cgrp)
+       if (cgroup_is_descendant(cgrp->css.cgroup, event->cgrp->css.cgroup))
 		__update_cgrp_time(event->cgrp);
 }
 
@@ -841,40 +923,6 @@ perf_cgroup_set_shadow_time(struct perf_event *event, u64 now)
 	event->shadow_ctx_time = now - t->timestamp;
 }
 
-static inline void
-perf_cgroup_defer_enabled(struct perf_event *event)
-{
-	/*
-	 * when the current task's perf cgroup does not match
-	 * the event's, we need to remember to call the
-	 * perf_mark_enable() function the first time a task with
-	 * a matching perf cgroup is scheduled in.
-	 */
-	if (is_cgroup_event(event) && !perf_cgroup_match(event))
-		event->cgrp_defer_enabled = 1;
-}
-
-static inline void
-perf_cgroup_mark_enabled(struct perf_event *event,
-			 struct perf_event_context *ctx)
-{
-	struct perf_event *sub;
-	u64 tstamp = perf_event_time(event);
-
-	if (!event->cgrp_defer_enabled)
-		return;
-
-	event->cgrp_defer_enabled = 0;
-
-	event->tstamp_enabled = tstamp - event->total_time_enabled;
-	list_for_each_entry(sub, &event->sibling_list, group_entry) {
-		if (sub->state >= PERF_EVENT_STATE_INACTIVE) {
-			sub->tstamp_enabled = tstamp - sub->total_time_enabled;
-			sub->cgrp_defer_enabled = 0;
-		}
-	}
-}
-
 /*
  * Update cpuctx->cgrp so that it is set when first cgroup event is added and
  * cleared when last cgroup event is removed.
@@ -901,9 +949,11 @@ list_update_cgroup_event(struct perf_event *event,
 	cpuctx_entry = &cpuctx->cgrp_cpuctx_entry;
 	/* cpuctx->cgrp is NULL unless a cgroup event is active in this CPU .*/
 	if (add) {
+		struct perf_cgroup *cgrp = perf_cgroup_from_task(current, ctx);
+
 		list_add(cpuctx_entry, this_cpu_ptr(&cgrp_cpuctx_list));
-		if (perf_cgroup_from_task(current, ctx) == event->cgrp)
-			cpuctx->cgrp = event->cgrp;
+		if (cgroup_is_descendant(cgrp->css.cgroup, event->cgrp->css.cgroup))
+			cpuctx->cgrp = cgrp;
 	} else {
 		list_del(cpuctx_entry);
 		cpuctx->cgrp = NULL;
@@ -973,17 +1023,6 @@ static inline u64 perf_cgroup_event_time(struct perf_event *event)
 }
 
 static inline void
-perf_cgroup_defer_enabled(struct perf_event *event)
-{
-}
-
-static inline void
-perf_cgroup_mark_enabled(struct perf_event *event,
-			 struct perf_event_context *ctx)
-{
-}
-
-static inline void
 list_update_cgroup_event(struct perf_event *event,
 			 struct perf_event_context *ctx, bool add)
 {
@@ -1004,7 +1043,7 @@ static enum hrtimer_restart perf_mux_hrtimer_handler(struct hrtimer *hr)
 	struct perf_cpu_context *cpuctx;
 	int rotations = 0;
 
-	WARN_ON(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	cpuctx = container_of(hr, struct perf_cpu_context, hrtimer);
 	rotations = perf_rotate_context(cpuctx);
@@ -1091,7 +1130,7 @@ static void perf_event_ctx_activate(struct perf_event_context *ctx)
 {
 	struct list_head *head = this_cpu_ptr(&active_ctx_list);
 
-	WARN_ON(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	WARN_ON(!list_empty(&ctx->active_ctx_list));
 
@@ -1100,7 +1139,7 @@ static void perf_event_ctx_activate(struct perf_event_context *ctx)
 
 static void perf_event_ctx_deactivate(struct perf_event_context *ctx)
 {
-	WARN_ON(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	WARN_ON(list_empty(&ctx->active_ctx_list));
 
@@ -1200,7 +1239,7 @@ perf_event_ctx_lock_nested(struct perf_event *event, int nesting)
 
 again:
 	rcu_read_lock();
-	ctx = ACCESS_ONCE(event->ctx);
+	ctx = READ_ONCE(event->ctx);
 	if (!atomic_inc_not_zero(&ctx->refcount)) {
 		rcu_read_unlock();
 		goto again;
@@ -1396,60 +1435,6 @@ static u64 perf_event_time(struct perf_event *event)
 	return ctx ? ctx->time : 0;
 }
 
-/*
- * Update the total_time_enabled and total_time_running fields for a event.
- */
-static void update_event_times(struct perf_event *event)
-{
-	struct perf_event_context *ctx = event->ctx;
-	u64 run_end;
-
-	lockdep_assert_held(&ctx->lock);
-
-	if (event->state < PERF_EVENT_STATE_INACTIVE ||
-	    event->group_leader->state < PERF_EVENT_STATE_INACTIVE)
-		return;
-
-	/*
-	 * in cgroup mode, time_enabled represents
-	 * the time the event was enabled AND active
-	 * tasks were in the monitored cgroup. This is
-	 * independent of the activity of the context as
-	 * there may be a mix of cgroup and non-cgroup events.
-	 *
-	 * That is why we treat cgroup events differently
-	 * here.
-	 */
-	if (is_cgroup_event(event))
-		run_end = perf_cgroup_event_time(event);
-	else if (ctx->is_active)
-		run_end = ctx->time;
-	else
-		run_end = event->tstamp_stopped;
-
-	event->total_time_enabled = run_end - event->tstamp_enabled;
-
-	if (event->state == PERF_EVENT_STATE_INACTIVE)
-		run_end = event->tstamp_stopped;
-	else
-		run_end = perf_event_time(event);
-
-	event->total_time_running = run_end - event->tstamp_running;
-
-}
-
-/*
- * Update total_time_enabled and total_time_running for all events in a group.
- */
-static void update_group_times(struct perf_event *leader)
-{
-	struct perf_event *event;
-
-	update_event_times(leader);
-	list_for_each_entry(event, &leader->sibling_list, group_entry)
-		update_event_times(event);
-}
-
 static enum event_type_t get_event_type(struct perf_event *event)
 {
 	struct perf_event_context *ctx = event->ctx;
@@ -1492,6 +1477,8 @@ list_add_event(struct perf_event *event, struct perf_event_context *ctx)
 	WARN_ON_ONCE(event->attach_state & PERF_ATTACH_CONTEXT);
 	event->attach_state |= PERF_ATTACH_CONTEXT;
 
+	event->tstamp = perf_event_time(event);
+
 	/*
 	 * If we're a stand alone event or group leader, we go to the context
 	 * list, group events are kept attached to the group so that
@@ -1699,8 +1686,6 @@ list_del_event(struct perf_event *event, struct perf_event_context *ctx)
 	if (event->group_leader == event)
 		list_del_init(&event->group_entry);
 
-	update_group_times(event);
-
 	/*
 	 * If event was in error state, then keep it
 	 * that way, otherwise bogus counts will be
@@ -1709,7 +1694,7 @@ list_del_event(struct perf_event *event, struct perf_event_context *ctx)
 	 * of the event
 	 */
 	if (event->state > PERF_EVENT_STATE_OFF)
-		event->state = PERF_EVENT_STATE_OFF;
+		perf_event_set_state(event, PERF_EVENT_STATE_OFF);
 
 	ctx->generation++;
 }
@@ -1808,38 +1793,24 @@ event_sched_out(struct perf_event *event,
 		  struct perf_cpu_context *cpuctx,
 		  struct perf_event_context *ctx)
 {
-	u64 tstamp = perf_event_time(event);
-	u64 delta;
+	enum perf_event_state state = PERF_EVENT_STATE_INACTIVE;
 
 	WARN_ON_ONCE(event->ctx != ctx);
 	lockdep_assert_held(&ctx->lock);
 
-	/*
-	 * An event which could not be activated because of
-	 * filter mismatch still needs to have its timings
-	 * maintained, otherwise bogus information is return
-	 * via read() for time_enabled, time_running:
-	 */
-	if (event->state == PERF_EVENT_STATE_INACTIVE &&
-	    !event_filter_match(event)) {
-		delta = tstamp - event->tstamp_stopped;
-		event->tstamp_running += delta;
-		event->tstamp_stopped = tstamp;
-	}
-
 	if (event->state != PERF_EVENT_STATE_ACTIVE)
 		return;
 
 	perf_pmu_disable(event->pmu);
 
-	event->tstamp_stopped = tstamp;
 	event->pmu->del(event, 0);
 	event->oncpu = -1;
-	event->state = PERF_EVENT_STATE_INACTIVE;
+
 	if (event->pending_disable) {
 		event->pending_disable = 0;
-		event->state = PERF_EVENT_STATE_OFF;
+		state = PERF_EVENT_STATE_OFF;
 	}
+	perf_event_set_state(event, state);
 
 	if (!is_software_event(event))
 		cpuctx->active_oncpu--;
@@ -1859,7 +1830,9 @@ group_sched_out(struct perf_event *group_event,
 		struct perf_event_context *ctx)
 {
 	struct perf_event *event;
-	int state = group_event->state;
+
+	if (group_event->state != PERF_EVENT_STATE_ACTIVE)
+		return;
 
 	perf_pmu_disable(ctx->pmu);
 
@@ -1873,7 +1846,7 @@ group_sched_out(struct perf_event *group_event,
 
 	perf_pmu_enable(ctx->pmu);
 
-	if (state == PERF_EVENT_STATE_ACTIVE && group_event->attr.exclusive)
+	if (group_event->attr.exclusive)
 		cpuctx->exclusive = 0;
 }
 
@@ -1893,6 +1866,11 @@ __perf_remove_from_context(struct perf_event *event,
 {
 	unsigned long flags = (unsigned long)info;
 
+	if (ctx->is_active & EVENT_TIME) {
+		update_context_time(ctx);
+		update_cgrp_time_from_cpuctx(cpuctx);
+	}
+
 	event_sched_out(event, cpuctx, ctx);
 	if (flags & DETACH_GROUP)
 		perf_group_detach(event);
@@ -1955,14 +1933,17 @@ static void __perf_event_disable(struct perf_event *event,
 	if (event->state < PERF_EVENT_STATE_INACTIVE)
 		return;
 
-	update_context_time(ctx);
-	update_cgrp_time_from_event(event);
-	update_group_times(event);
+	if (ctx->is_active & EVENT_TIME) {
+		update_context_time(ctx);
+		update_cgrp_time_from_event(event);
+	}
+
 	if (event == event->group_leader)
 		group_sched_out(event, cpuctx, ctx);
 	else
 		event_sched_out(event, cpuctx, ctx);
-	event->state = PERF_EVENT_STATE_OFF;
+
+	perf_event_set_state(event, PERF_EVENT_STATE_OFF);
 }
 
 /*
@@ -2019,8 +2000,7 @@ void perf_event_disable_inatomic(struct perf_event *event)
 }
 
 static void perf_set_shadow_time(struct perf_event *event,
-				 struct perf_event_context *ctx,
-				 u64 tstamp)
+				 struct perf_event_context *ctx)
 {
 	/*
 	 * use the correct time source for the time snapshot
@@ -2048,9 +2028,9 @@ static void perf_set_shadow_time(struct perf_event *event,
 	 * is cleaner and simpler to understand.
 	 */
 	if (is_cgroup_event(event))
-		perf_cgroup_set_shadow_time(event, tstamp);
+		perf_cgroup_set_shadow_time(event, event->tstamp);
 	else
-		event->shadow_ctx_time = tstamp - ctx->timestamp;
+		event->shadow_ctx_time = event->tstamp - ctx->timestamp;
 }
 
 #define MAX_INTERRUPTS (~0ULL)
@@ -2063,7 +2043,6 @@ event_sched_in(struct perf_event *event,
 		 struct perf_cpu_context *cpuctx,
 		 struct perf_event_context *ctx)
 {
-	u64 tstamp = perf_event_time(event);
 	int ret = 0;
 
 	lockdep_assert_held(&ctx->lock);
@@ -2073,11 +2052,12 @@ event_sched_in(struct perf_event *event,
 
 	WRITE_ONCE(event->oncpu, smp_processor_id());
 	/*
-	 * Order event::oncpu write to happen before the ACTIVE state
-	 * is visible.
+	 * Order event::oncpu write to happen before the ACTIVE state is
+	 * visible. This allows perf_event_{stop,read}() to observe the correct
+	 * ->oncpu if it sees ACTIVE.
 	 */
 	smp_wmb();
-	WRITE_ONCE(event->state, PERF_EVENT_STATE_ACTIVE);
+	perf_event_set_state(event, PERF_EVENT_STATE_ACTIVE);
 
 	/*
 	 * Unthrottle events, since we scheduled we might have missed several
@@ -2089,26 +2069,19 @@ event_sched_in(struct perf_event *event,
 		event->hw.interrupts = 0;
 	}
 
-	/*
-	 * The new state must be visible before we turn it on in the hardware:
-	 */
-	smp_wmb();
-
 	perf_pmu_disable(event->pmu);
 
-	perf_set_shadow_time(event, ctx, tstamp);
+	perf_set_shadow_time(event, ctx);
 
 	perf_log_itrace_start(event);
 
 	if (event->pmu->add(event, PERF_EF_START)) {
-		event->state = PERF_EVENT_STATE_INACTIVE;
+		perf_event_set_state(event, PERF_EVENT_STATE_INACTIVE);
 		event->oncpu = -1;
 		ret = -EAGAIN;
 		goto out;
 	}
 
-	event->tstamp_running += tstamp - event->tstamp_stopped;
-
 	if (!is_software_event(event))
 		cpuctx->active_oncpu++;
 	if (!ctx->nr_active++)
@@ -2132,8 +2105,6 @@ group_sched_in(struct perf_event *group_event,
 {
 	struct perf_event *event, *partial_group = NULL;
 	struct pmu *pmu = ctx->pmu;
-	u64 now = ctx->time;
-	bool simulate = false;
 
 	if (group_event->state == PERF_EVENT_STATE_OFF)
 		return 0;
@@ -2163,27 +2134,13 @@ group_error:
 	/*
 	 * Groups can be scheduled in as one unit only, so undo any
 	 * partial group before returning:
-	 * The events up to the failed event are scheduled out normally,
-	 * tstamp_stopped will be updated.
-	 *
-	 * The failed events and the remaining siblings need to have
-	 * their timings updated as if they had gone thru event_sched_in()
-	 * and event_sched_out(). This is required to get consistent timings
-	 * across the group. This also takes care of the case where the group
-	 * could never be scheduled by ensuring tstamp_stopped is set to mark
-	 * the time the event was actually stopped, such that time delta
-	 * calculation in update_event_times() is correct.
+	 * The events up to the failed event are scheduled out normally.
 	 */
 	list_for_each_entry(event, &group_event->sibling_list, group_entry) {
 		if (event == partial_group)
-			simulate = true;
+			break;
 
-		if (simulate) {
-			event->tstamp_running += now - event->tstamp_stopped;
-			event->tstamp_stopped = now;
-		} else {
-			event_sched_out(event, cpuctx, ctx);
-		}
+		event_sched_out(event, cpuctx, ctx);
 	}
 	event_sched_out(group_event, cpuctx, ctx);
 
@@ -2225,46 +2182,11 @@ static int group_can_go_on(struct perf_event *event,
 	return can_add_hw;
 }
 
-/*
- * Complement to update_event_times(). This computes the tstamp_* values to
- * continue 'enabled' state from @now, and effectively discards the time
- * between the prior tstamp_stopped and now (as we were in the OFF state, or
- * just switched (context) time base).
- *
- * This further assumes '@event->state == INACTIVE' (we just came from OFF) and
- * cannot have been scheduled in yet. And going into INACTIVE state means
- * '@event->tstamp_stopped = @now'.
- *
- * Thus given the rules of update_event_times():
- *
- *   total_time_enabled = tstamp_stopped - tstamp_enabled
- *   total_time_running = tstamp_stopped - tstamp_running
- *
- * We can insert 'tstamp_stopped == now' and reverse them to compute new
- * tstamp_* values.
- */
-static void __perf_event_enable_time(struct perf_event *event, u64 now)
-{
-	WARN_ON_ONCE(event->state != PERF_EVENT_STATE_INACTIVE);
-
-	event->tstamp_stopped = now;
-	event->tstamp_enabled = now - event->total_time_enabled;
-	event->tstamp_running = now - event->total_time_running;
-}
-
 static void add_event_to_ctx(struct perf_event *event,
 			       struct perf_event_context *ctx)
 {
-	u64 tstamp = perf_event_time(event);
-
 	list_add_event(event, ctx);
 	perf_group_attach(event);
-	/*
-	 * We can be called with event->state == STATE_OFF when we create with
-	 * .disabled = 1. In that case the IOC_ENABLE will call this function.
-	 */
-	if (event->state == PERF_EVENT_STATE_INACTIVE)
-		__perf_event_enable_time(event, tstamp);
 }
 
 static void ctx_sched_out(struct perf_event_context *ctx,
@@ -2496,28 +2418,6 @@ again:
 }
 
 /*
- * Put a event into inactive state and update time fields.
- * Enabling the leader of a group effectively enables all
- * the group members that aren't explicitly disabled, so we
- * have to update their ->tstamp_enabled also.
- * Note: this works for group members as well as group leaders
- * since the non-leader members' sibling_lists will be empty.
- */
-static void __perf_event_mark_enabled(struct perf_event *event)
-{
-	struct perf_event *sub;
-	u64 tstamp = perf_event_time(event);
-
-	event->state = PERF_EVENT_STATE_INACTIVE;
-	__perf_event_enable_time(event, tstamp);
-	list_for_each_entry(sub, &event->sibling_list, group_entry) {
-		/* XXX should not be > INACTIVE if event isn't */
-		if (sub->state >= PERF_EVENT_STATE_INACTIVE)
-			__perf_event_enable_time(sub, tstamp);
-	}
-}
-
-/*
  * Cross CPU call to enable a performance event
  */
 static void __perf_event_enable(struct perf_event *event,
@@ -2535,14 +2435,12 @@ static void __perf_event_enable(struct perf_event *event,
 	if (ctx->is_active)
 		ctx_sched_out(ctx, cpuctx, EVENT_TIME);
 
-	__perf_event_mark_enabled(event);
+	perf_event_set_state(event, PERF_EVENT_STATE_INACTIVE);
 
 	if (!ctx->is_active)
 		return;
 
 	if (!event_filter_match(event)) {
-		if (is_cgroup_event(event))
-			perf_cgroup_defer_enabled(event);
 		ctx_sched_in(ctx, cpuctx, EVENT_TIME, current);
 		return;
 	}
@@ -2862,18 +2760,10 @@ static void __perf_event_sync_stat(struct perf_event *event,
 	 * we know the event must be on the current CPU, therefore we
 	 * don't need to use it.
 	 */
-	switch (event->state) {
-	case PERF_EVENT_STATE_ACTIVE:
+	if (event->state == PERF_EVENT_STATE_ACTIVE)
 		event->pmu->read(event);
-		/* fall-through */
-
-	case PERF_EVENT_STATE_INACTIVE:
-		update_event_times(event);
-		break;
 
-	default:
-		break;
-	}
+	perf_event_update_time(event);
 
 	/*
 	 * In order to keep per-task stats reliable we need to flip the event
@@ -3110,10 +3000,6 @@ ctx_pinned_sched_in(struct perf_event_context *ctx,
 		if (!event_filter_match(event))
 			continue;
 
-		/* may need to reset tstamp_enabled */
-		if (is_cgroup_event(event))
-			perf_cgroup_mark_enabled(event, ctx);
-
 		if (group_can_go_on(event, cpuctx, 1))
 			group_sched_in(event, cpuctx, ctx);
 
@@ -3121,10 +3007,8 @@ ctx_pinned_sched_in(struct perf_event_context *ctx,
 		 * If this pinned group hasn't been scheduled,
 		 * put it in error state.
 		 */
-		if (event->state == PERF_EVENT_STATE_INACTIVE) {
-			update_group_times(event);
-			event->state = PERF_EVENT_STATE_ERROR;
-		}
+		if (event->state == PERF_EVENT_STATE_INACTIVE)
+			perf_event_set_state(event, PERF_EVENT_STATE_ERROR);
 	}
 }
 
@@ -3146,10 +3030,6 @@ ctx_flexible_sched_in(struct perf_event_context *ctx,
 		if (!event_filter_match(event))
 			continue;
 
-		/* may need to reset tstamp_enabled */
-		if (is_cgroup_event(event))
-			perf_cgroup_mark_enabled(event, ctx);
-
 		if (group_can_go_on(event, cpuctx, can_add_hw)) {
 			if (group_sched_in(event, cpuctx, ctx))
 				can_add_hw = 0;
@@ -3521,7 +3401,7 @@ void perf_event_task_tick(void)
 	struct perf_event_context *ctx, *tmp;
 	int throttled;
 
-	WARN_ON(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	__this_cpu_inc(perf_throttled_seq);
 	throttled = __this_cpu_xchg(perf_throttled_count, 0);
@@ -3541,7 +3421,7 @@ static int event_enable_on_exec(struct perf_event *event,
 	if (event->state >= PERF_EVENT_STATE_INACTIVE)
 		return 0;
 
-	__perf_event_mark_enabled(event);
+	perf_event_set_state(event, PERF_EVENT_STATE_INACTIVE);
 
 	return 1;
 }
@@ -3635,12 +3515,15 @@ static void __perf_event_read(void *info)
 		return;
 
 	raw_spin_lock(&ctx->lock);
-	if (ctx->is_active) {
+	if (ctx->is_active & EVENT_TIME) {
 		update_context_time(ctx);
 		update_cgrp_time_from_event(event);
 	}
 
-	update_event_times(event);
+	perf_event_update_time(event);
+	if (data->group)
+		perf_event_update_sibling_time(event);
+
 	if (event->state != PERF_EVENT_STATE_ACTIVE)
 		goto unlock;
 
@@ -3655,7 +3538,6 @@ static void __perf_event_read(void *info)
 	pmu->read(event);
 
 	list_for_each_entry(sub, &event->sibling_list, group_entry) {
-		update_event_times(sub);
 		if (sub->state == PERF_EVENT_STATE_ACTIVE) {
 			/*
 			 * Use sibling's PMU rather than @event's since
@@ -3684,7 +3566,8 @@ static inline u64 perf_event_count(struct perf_event *event)
  *     will not be local and we cannot read them atomically
  *   - must not have a pmu::count method
  */
-int perf_event_read_local(struct perf_event *event, u64 *value)
+int perf_event_read_local(struct perf_event *event, u64 *value,
+			  u64 *enabled, u64 *running)
 {
 	unsigned long flags;
 	int ret = 0;
@@ -3718,6 +3601,7 @@ int perf_event_read_local(struct perf_event *event, u64 *value)
 		goto out;
 	}
 
+
 	/*
 	 * If the event is currently on this CPU, its either a per-task event,
 	 * or local to this CPU. Furthermore it means its ACTIVE (otherwise
@@ -3727,6 +3611,16 @@ int perf_event_read_local(struct perf_event *event, u64 *value)
 		event->pmu->read(event);
 
 	*value = local64_read(&event->count);
+	if (enabled || running) {
+		u64 now = event->shadow_ctx_time + perf_clock();
+		u64 __enabled, __running;
+
+		__perf_update_times(event, now, &__enabled, &__running);
+		if (enabled)
+			*enabled = __enabled;
+		if (running)
+			*running = __running;
+	}
 out:
 	local_irq_restore(flags);
 
@@ -3735,23 +3629,35 @@ out:
 
 static int perf_event_read(struct perf_event *event, bool group)
 {
+	enum perf_event_state state = READ_ONCE(event->state);
 	int event_cpu, ret = 0;
 
 	/*
 	 * If event is enabled and currently active on a CPU, update the
 	 * value in the event structure:
 	 */
-	if (event->state == PERF_EVENT_STATE_ACTIVE) {
-		struct perf_read_data data = {
-			.event = event,
-			.group = group,
-			.ret = 0,
-		};
+again:
+	if (state == PERF_EVENT_STATE_ACTIVE) {
+		struct perf_read_data data;
+
+		/*
+		 * Orders the ->state and ->oncpu loads such that if we see
+		 * ACTIVE we must also see the right ->oncpu.
+		 *
+		 * Matches the smp_wmb() from event_sched_in().
+		 */
+		smp_rmb();
 
 		event_cpu = READ_ONCE(event->oncpu);
 		if ((unsigned)event_cpu >= nr_cpu_ids)
 			return 0;
 
+		data = (struct perf_read_data){
+			.event = event,
+			.group = group,
+			.ret = 0,
+		};
+
 		preempt_disable();
 		event_cpu = __perf_event_read_cpu(event, event_cpu);
 
@@ -3768,24 +3674,30 @@ static int perf_event_read(struct perf_event *event, bool group)
 		(void)smp_call_function_single(event_cpu, __perf_event_read, &data, 1);
 		preempt_enable();
 		ret = data.ret;
-	} else if (event->state == PERF_EVENT_STATE_INACTIVE) {
+
+	} else if (state == PERF_EVENT_STATE_INACTIVE) {
 		struct perf_event_context *ctx = event->ctx;
 		unsigned long flags;
 
 		raw_spin_lock_irqsave(&ctx->lock, flags);
+		state = event->state;
+		if (state != PERF_EVENT_STATE_INACTIVE) {
+			raw_spin_unlock_irqrestore(&ctx->lock, flags);
+			goto again;
+		}
+
 		/*
-		 * may read while context is not active
-		 * (e.g., thread is blocked), in that case
-		 * we cannot update context time
+		 * May read while context is not active (e.g., thread is
+		 * blocked), in that case we cannot update context time
 		 */
-		if (ctx->is_active) {
+		if (ctx->is_active & EVENT_TIME) {
 			update_context_time(ctx);
 			update_cgrp_time_from_event(event);
 		}
+
+		perf_event_update_time(event);
 		if (group)
-			update_group_times(event);
-		else
-			update_event_times(event);
+			perf_event_update_sibling_time(event);
 		raw_spin_unlock_irqrestore(&ctx->lock, flags);
 	}
 
@@ -4231,7 +4143,7 @@ static void perf_remove_from_owner(struct perf_event *event)
 	 * indeed free this event, otherwise we need to serialize on
 	 * owner->perf_event_mutex.
 	 */
-	owner = lockless_dereference(event->owner);
+	owner = READ_ONCE(event->owner);
 	if (owner) {
 		/*
 		 * Since delayed_put_task_struct() also drops the last
@@ -4328,7 +4240,7 @@ again:
 		 * Cannot change, child events are not migrated, see the
 		 * comment with perf_event_ctx_lock_nested().
 		 */
-		ctx = lockless_dereference(child->ctx);
+		ctx = READ_ONCE(child->ctx);
 		/*
 		 * Since child_mutex nests inside ctx::mutex, we must jump
 		 * through hoops. We start by grabbing a reference on the ctx.
@@ -4388,7 +4300,7 @@ static int perf_release(struct inode *inode, struct file *file)
 	return 0;
 }
 
-u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
+static u64 __perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
 {
 	struct perf_event *child;
 	u64 total = 0;
@@ -4416,6 +4328,18 @@ u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
 
 	return total;
 }
+
+u64 perf_event_read_value(struct perf_event *event, u64 *enabled, u64 *running)
+{
+	struct perf_event_context *ctx;
+	u64 count;
+
+	ctx = perf_event_ctx_lock(event);
+	count = __perf_event_read_value(event, enabled, running);
+	perf_event_ctx_unlock(event, ctx);
+
+	return count;
+}
 EXPORT_SYMBOL_GPL(perf_event_read_value);
 
 static int __perf_read_group_add(struct perf_event *leader,
@@ -4431,6 +4355,8 @@ static int __perf_read_group_add(struct perf_event *leader,
 	if (ret)
 		return ret;
 
+	raw_spin_lock_irqsave(&ctx->lock, flags);
+
 	/*
 	 * Since we co-schedule groups, {enabled,running} times of siblings
 	 * will be identical to those of the leader, so we only publish one
@@ -4453,8 +4379,6 @@ static int __perf_read_group_add(struct perf_event *leader,
 	if (read_format & PERF_FORMAT_ID)
 		values[n++] = primary_event_id(leader);
 
-	raw_spin_lock_irqsave(&ctx->lock, flags);
-
 	list_for_each_entry(sub, &leader->sibling_list, group_entry) {
 		values[n++] += perf_event_count(sub);
 		if (read_format & PERF_FORMAT_ID)
@@ -4518,7 +4442,7 @@ static int perf_read_one(struct perf_event *event,
 	u64 values[4];
 	int n = 0;
 
-	values[n++] = perf_event_read_value(event, &enabled, &running);
+	values[n++] = __perf_event_read_value(event, &enabled, &running);
 	if (read_format & PERF_FORMAT_TOTAL_TIME_ENABLED)
 		values[n++] = enabled;
 	if (read_format & PERF_FORMAT_TOTAL_TIME_RUNNING)
@@ -4897,8 +4821,7 @@ static void calc_timer_values(struct perf_event *event,
 
 	*now = perf_clock();
 	ctx_time = event->shadow_ctx_time + *now;
-	*enabled = ctx_time - event->tstamp_enabled;
-	*running = ctx_time - event->tstamp_running;
+	__perf_update_times(event, ctx_time, enabled, running);
 }
 
 static void perf_event_init_userpage(struct perf_event *event)
@@ -5302,8 +5225,8 @@ static int perf_mmap(struct file *file, struct vm_area_struct *vma)
 		if (!rb)
 			goto aux_unlock;
 
-		aux_offset = ACCESS_ONCE(rb->user_page->aux_offset);
-		aux_size = ACCESS_ONCE(rb->user_page->aux_size);
+		aux_offset = READ_ONCE(rb->user_page->aux_offset);
+		aux_size = READ_ONCE(rb->user_page->aux_size);
 
 		if (aux_offset < perf_data_size(rb) + PAGE_SIZE)
 			goto aux_unlock;
@@ -8072,6 +7995,7 @@ static void bpf_overflow_handler(struct perf_event *event,
 	struct bpf_perf_event_data_kern ctx = {
 		.data = data,
 		.regs = regs,
+		.event = event,
 	};
 	int ret = 0;
 
@@ -8171,6 +8095,7 @@ static int perf_event_set_bpf_prog(struct perf_event *event, u32 prog_fd)
 		}
 	}
 	event->tp_event->prog = prog;
+	event->tp_event->bpf_prog_owner = event;
 
 	return 0;
 }
@@ -8185,7 +8110,7 @@ static void perf_event_free_bpf_prog(struct perf_event *event)
 		return;
 
 	prog = event->tp_event->prog;
-	if (prog) {
+	if (prog && event->tp_event->bpf_prog_owner == event) {
 		event->tp_event->prog = NULL;
 		bpf_prog_put(prog);
 	}
@@ -8954,6 +8879,14 @@ static struct perf_cpu_context __percpu *find_pmu_context(int ctxn)
 
 static void free_pmu_context(struct pmu *pmu)
 {
+	/*
+	 * Static contexts such as perf_sw_context have a global lifetime
+	 * and may be shared between different PMUs. Avoid freeing them
+	 * when a single PMU is going away.
+	 */
+	if (pmu->task_ctx_nr > perf_invalid_context)
+		return;
+
 	mutex_lock(&pmus_lock);
 	free_percpu(pmu->pmu_cpu_context);
 	mutex_unlock(&pmus_lock);
@@ -9393,6 +9326,11 @@ static void account_event(struct perf_event *event)
 		inc = true;
 
 	if (inc) {
+		/*
+		 * We need the mutex here because static_branch_enable()
+		 * must complete *before* the perf_sched_count increment
+		 * becomes visible.
+		 */
 		if (atomic_inc_not_zero(&perf_sched_count))
 			goto enabled;
 
@@ -10518,7 +10456,7 @@ perf_event_exit_event(struct perf_event *child_event,
 	if (parent_event)
 		perf_group_detach(child_event);
 	list_del_event(child_event, child_ctx);
-	child_event->state = PERF_EVENT_STATE_EXIT; /* is_event_hup() */
+	perf_event_set_state(child_event, PERF_EVENT_STATE_EXIT); /* is_event_hup() */
 	raw_spin_unlock_irq(&child_ctx->lock);
 
 	/*
@@ -10756,7 +10694,7 @@ inherit_event(struct perf_event *parent_event,
 	      struct perf_event *group_leader,
 	      struct perf_event_context *child_ctx)
 {
-	enum perf_event_active_state parent_state = parent_event->state;
+	enum perf_event_state parent_state = parent_event->state;
 	struct perf_event *child_event;
 	unsigned long flags;
 
@@ -11092,6 +11030,7 @@ static void __perf_event_exit_context(void *__info)
 	struct perf_event *event;
 
 	raw_spin_lock(&ctx->lock);
+	ctx_sched_out(ctx, cpuctx, EVENT_TIME);
 	list_for_each_entry(event, &ctx->event_list, event_entry)
 		__perf_remove_from_context(event, cpuctx, ctx, (void *)DETACH_GROUP);
 	raw_spin_unlock(&ctx->lock);
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index 843e97047335..09b1537ae06c 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KERNEL_EVENTS_INTERNAL_H
 #define _KERNEL_EVENTS_INTERNAL_H
 
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index af71a84e12ee..f3e37971c842 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -381,7 +381,7 @@ void *perf_aux_output_begin(struct perf_output_handle *handle,
 	 * (B) <-> (C) ordering is still observed by the pmu driver.
 	 */
 	if (!rb->aux_overwrite) {
-		aux_tail = ACCESS_ONCE(rb->user_page->aux_tail);
+		aux_tail = READ_ONCE(rb->user_page->aux_tail);
 		handle->wakeup = rb->aux_wakeup + rb->aux_watermark;
 		if (aux_head - aux_tail < perf_aux_size(rb))
 			handle->size = CIRC_SPACE(aux_head, aux_tail, perf_aux_size(rb));
@@ -412,6 +412,19 @@ err:
 	return NULL;
 }
 
+static bool __always_inline rb_need_aux_wakeup(struct ring_buffer *rb)
+{
+	if (rb->aux_overwrite)
+		return false;
+
+	if (rb->aux_head - rb->aux_wakeup >= rb->aux_watermark) {
+		rb->aux_wakeup = rounddown(rb->aux_head, rb->aux_watermark);
+		return true;
+	}
+
+	return false;
+}
+
 /*
  * Commit the data written by hardware into the ring buffer by adjusting
  * aux_head and posting a PERF_RECORD_AUX into the perf buffer. It is the
@@ -451,10 +464,8 @@ void perf_aux_output_end(struct perf_output_handle *handle, unsigned long size)
 	}
 
 	rb->user_page->aux_head = rb->aux_head;
-	if (rb->aux_head - rb->aux_wakeup >= rb->aux_watermark) {
+	if (rb_need_aux_wakeup(rb))
 		wakeup = true;
-		rb->aux_wakeup = rounddown(rb->aux_head, rb->aux_watermark);
-	}
 
 	if (wakeup) {
 		if (handle->aux_flags & PERF_AUX_FLAG_TRUNCATED)
@@ -484,9 +495,8 @@ int perf_aux_output_skip(struct perf_output_handle *handle, unsigned long size)
 	rb->aux_head += size;
 
 	rb->user_page->aux_head = rb->aux_head;
-	if (rb->aux_head - rb->aux_wakeup >= rb->aux_watermark) {
+	if (rb_need_aux_wakeup(rb)) {
 		perf_output_wakeup(handle);
-		rb->aux_wakeup = rounddown(rb->aux_head, rb->aux_watermark);
 		handle->wakeup = rb->aux_wakeup + rb->aux_watermark;
 	}
 
diff --git a/kernel/exec_domain.c b/kernel/exec_domain.c
index 6873bb3e6b7e..0975b0268545 100644
--- a/kernel/exec_domain.c
+++ b/kernel/exec_domain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Handling of different ABIs (personalities).
  *
diff --git a/kernel/exit.c b/kernel/exit.c
index 3481ababd06a..6b4298a41167 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -1339,7 +1339,7 @@ static int wait_consider_task(struct wait_opts *wo, int ptrace,
 	 * Ensure that EXIT_ZOMBIE -> EXIT_DEAD/EXIT_TRACE transition
 	 * can't confuse the checks below.
 	 */
-	int exit_state = ACCESS_ONCE(p->exit_state);
+	int exit_state = READ_ONCE(p->exit_state);
 	int ret;
 
 	if (unlikely(exit_state == EXIT_DEAD))
@@ -1600,18 +1600,19 @@ SYSCALL_DEFINE5(waitid, int, which, pid_t, upid, struct siginfo __user *,
 	struct waitid_info info = {.status = 0};
 	long err = kernel_waitid(which, upid, &info, options, ru ? &r : NULL);
 	int signo = 0;
+
 	if (err > 0) {
 		signo = SIGCHLD;
 		err = 0;
-	}
-
-	if (!err) {
 		if (ru && copy_to_user(ru, &r, sizeof(struct rusage)))
 			return -EFAULT;
 	}
 	if (!infop)
 		return err;
 
+	if (!access_ok(VERIFY_WRITE, infop, sizeof(*infop)))
+		return -EFAULT;
+
 	user_access_begin();
 	unsafe_put_user(signo, &infop->si_signo, Efault);
 	unsafe_put_user(0, &infop->si_errno, Efault);
@@ -1723,21 +1724,23 @@ COMPAT_SYSCALL_DEFINE5(waitid,
 	if (err > 0) {
 		signo = SIGCHLD;
 		err = 0;
-	}
-
-	if (!err && uru) {
-		/* kernel_waitid() overwrites everything in ru */
-		if (COMPAT_USE_64BIT_TIME)
-			err = copy_to_user(uru, &ru, sizeof(ru));
-		else
-			err = put_compat_rusage(&ru, uru);
-		if (err)
-			return -EFAULT;
+		if (uru) {
+			/* kernel_waitid() overwrites everything in ru */
+			if (COMPAT_USE_64BIT_TIME)
+				err = copy_to_user(uru, &ru, sizeof(ru));
+			else
+				err = put_compat_rusage(&ru, uru);
+			if (err)
+				return -EFAULT;
+		}
 	}
 
 	if (!infop)
 		return err;
 
+	if (!access_ok(VERIFY_WRITE, infop, sizeof(*infop)))
+		return -EFAULT;
+
 	user_access_begin();
 	unsafe_put_user(signo, &infop->si_signo, Efault);
 	unsafe_put_user(0, &infop->si_errno, Efault);
diff --git a/kernel/extable.c b/kernel/extable.c
index 38c2412401a1..a17fdb63dc3e 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -31,6 +31,8 @@
  * mutex protecting text section modification (dynamic code patching).
  * some users need to sleep (allocating memory...) while they hold this lock.
  *
+ * Note: Also protects SMP-alternatives modification on x86.
+ *
  * NOT exported to modules - patching kernel text is a really delicate matter.
  */
 DEFINE_MUTEX(text_mutex);
@@ -102,15 +104,7 @@ int core_kernel_data(unsigned long addr)
 
 int __kernel_text_address(unsigned long addr)
 {
-	if (core_kernel_text(addr))
-		return 1;
-	if (is_module_text_address(addr))
-		return 1;
-	if (is_ftrace_trampoline(addr))
-		return 1;
-	if (is_kprobe_optinsn_slot(addr) || is_kprobe_insn_slot(addr))
-		return 1;
-	if (is_bpf_text_address(addr))
+	if (kernel_text_address(addr))
 		return 1;
 	/*
 	 * There might be init symbols in saved stacktraces.
@@ -127,17 +121,42 @@ int __kernel_text_address(unsigned long addr)
 
 int kernel_text_address(unsigned long addr)
 {
+	bool no_rcu;
+	int ret = 1;
+
 	if (core_kernel_text(addr))
 		return 1;
+
+	/*
+	 * If a stack dump happens while RCU is not watching, then
+	 * RCU needs to be notified that it requires to start
+	 * watching again. This can happen either by tracing that
+	 * triggers a stack trace, or a WARN() that happens during
+	 * coming back from idle, or cpu on or offlining.
+	 *
+	 * is_module_text_address() as well as the kprobe slots
+	 * and is_bpf_text_address() require RCU to be watching.
+	 */
+	no_rcu = !rcu_is_watching();
+
+	/* Treat this like an NMI as it can happen anywhere */
+	if (no_rcu)
+		rcu_nmi_enter();
+
 	if (is_module_text_address(addr))
-		return 1;
+		goto out;
 	if (is_ftrace_trampoline(addr))
-		return 1;
+		goto out;
 	if (is_kprobe_optinsn_slot(addr) || is_kprobe_insn_slot(addr))
-		return 1;
+		goto out;
 	if (is_bpf_text_address(addr))
-		return 1;
-	return 0;
+		goto out;
+	ret = 0;
+out:
+	if (no_rcu)
+		rcu_nmi_exit();
+
+	return ret;
 }
 
 /*
diff --git a/kernel/fork.c b/kernel/fork.c
index 10646182440f..07cc743698d3 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -215,6 +215,10 @@ static unsigned long *alloc_thread_stack_node(struct task_struct *tsk, int node)
 		if (!s)
 			continue;
 
+#ifdef CONFIG_DEBUG_KMEMLEAK
+		/* Clear stale pointers from reused stack. */
+		memset(s->addr, 0, THREAD_SIZE);
+#endif
 		tsk->stack_vm_area = s;
 		return s->addr;
 	}
@@ -946,6 +950,24 @@ void mmput(struct mm_struct *mm)
 }
 EXPORT_SYMBOL_GPL(mmput);
 
+#ifdef CONFIG_MMU
+static void mmput_async_fn(struct work_struct *work)
+{
+	struct mm_struct *mm = container_of(work, struct mm_struct,
+					    async_put_work);
+
+	__mmput(mm);
+}
+
+void mmput_async(struct mm_struct *mm)
+{
+	if (atomic_dec_and_test(&mm->mm_users)) {
+		INIT_WORK(&mm->async_put_work, mmput_async_fn);
+		schedule_work(&mm->async_put_work);
+	}
+}
+#endif
+
 /**
  * set_mm_exe_file - change a reference to the mm's executable file
  *
diff --git a/kernel/futex.c b/kernel/futex.c
index 3d38eaf05492..76ed5921117a 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -821,8 +821,6 @@ static void get_pi_state(struct futex_pi_state *pi_state)
 /*
  * Drops a reference to the pi_state object and frees or caches it
  * when the last reference is gone.
- *
- * Must be called with the hb lock held.
  */
 static void put_pi_state(struct futex_pi_state *pi_state)
 {
@@ -837,16 +835,22 @@ static void put_pi_state(struct futex_pi_state *pi_state)
 	 * and has cleaned up the pi_state already
 	 */
 	if (pi_state->owner) {
-		raw_spin_lock_irq(&pi_state->owner->pi_lock);
-		list_del_init(&pi_state->list);
-		raw_spin_unlock_irq(&pi_state->owner->pi_lock);
+		struct task_struct *owner;
 
-		rt_mutex_proxy_unlock(&pi_state->pi_mutex, pi_state->owner);
+		raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
+		owner = pi_state->owner;
+		if (owner) {
+			raw_spin_lock(&owner->pi_lock);
+			list_del_init(&pi_state->list);
+			raw_spin_unlock(&owner->pi_lock);
+		}
+		rt_mutex_proxy_unlock(&pi_state->pi_mutex, owner);
+		raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock);
 	}
 
-	if (current->pi_state_cache)
+	if (current->pi_state_cache) {
 		kfree(pi_state);
-	else {
+	} else {
 		/*
 		 * pi_state->list is already empty.
 		 * clear pi_state->owner.
@@ -899,22 +903,41 @@ void exit_pi_state_list(struct task_struct *curr)
 	 */
 	raw_spin_lock_irq(&curr->pi_lock);
 	while (!list_empty(head)) {
-
 		next = head->next;
 		pi_state = list_entry(next, struct futex_pi_state, list);
 		key = pi_state->key;
 		hb = hash_futex(&key);
+
+		/*
+		 * We can race against put_pi_state() removing itself from the
+		 * list (a waiter going away). put_pi_state() will first
+		 * decrement the reference count and then modify the list, so
+		 * its possible to see the list entry but fail this reference
+		 * acquire.
+		 *
+		 * In that case; drop the locks to let put_pi_state() make
+		 * progress and retry the loop.
+		 */
+		if (!atomic_inc_not_zero(&pi_state->refcount)) {
+			raw_spin_unlock_irq(&curr->pi_lock);
+			cpu_relax();
+			raw_spin_lock_irq(&curr->pi_lock);
+			continue;
+		}
 		raw_spin_unlock_irq(&curr->pi_lock);
 
 		spin_lock(&hb->lock);
-
-		raw_spin_lock_irq(&curr->pi_lock);
+		raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
+		raw_spin_lock(&curr->pi_lock);
 		/*
 		 * We dropped the pi-lock, so re-check whether this
 		 * task still owns the PI-state:
 		 */
 		if (head->next != next) {
+			/* retain curr->pi_lock for the loop invariant */
+			raw_spin_unlock(&pi_state->pi_mutex.wait_lock);
 			spin_unlock(&hb->lock);
+			put_pi_state(pi_state);
 			continue;
 		}
 
@@ -922,9 +945,9 @@ void exit_pi_state_list(struct task_struct *curr)
 		WARN_ON(list_empty(&pi_state->list));
 		list_del_init(&pi_state->list);
 		pi_state->owner = NULL;
-		raw_spin_unlock_irq(&curr->pi_lock);
 
-		get_pi_state(pi_state);
+		raw_spin_unlock(&curr->pi_lock);
+		raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock);
 		spin_unlock(&hb->lock);
 
 		rt_mutex_futex_unlock(&pi_state->pi_mutex);
@@ -1208,6 +1231,10 @@ static int attach_to_pi_owner(u32 uval, union futex_key *key,
 
 	WARN_ON(!list_empty(&pi_state->list));
 	list_add(&pi_state->list, &p->pi_state_list);
+	/*
+	 * Assignment without holding pi_state->pi_mutex.wait_lock is safe
+	 * because there is no concurrency as the object is not published yet.
+	 */
 	pi_state->owner = p;
 	raw_spin_unlock_irq(&p->pi_lock);
 
@@ -1560,8 +1587,16 @@ static int futex_atomic_op_inuser(unsigned int encoded_op, u32 __user *uaddr)
 	int oldval, ret;
 
 	if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) {
-		if (oparg < 0 || oparg > 31)
-			return -EINVAL;
+		if (oparg < 0 || oparg > 31) {
+			char comm[sizeof(current->comm)];
+			/*
+			 * kill this print and return -EINVAL when userspace
+			 * is sane again
+			 */
+			pr_info_ratelimited("futex_wake_op: %s tries to shift op by %d; fix this program\n",
+					get_task_comm(comm, current), oparg);
+			oparg &= 31;
+		}
 		oparg = 1 << oparg;
 	}
 
@@ -2878,6 +2913,7 @@ retry:
 		raw_spin_lock_irq(&pi_state->pi_mutex.wait_lock);
 		spin_unlock(&hb->lock);
 
+		/* drops pi_state->pi_mutex.wait_lock */
 		ret = wake_futex_pi(uaddr, uval, pi_state);
 
 		put_pi_state(pi_state);
diff --git a/kernel/futex_compat.c b/kernel/futex_compat.c
index 3f409968e466..83f830acbb5f 100644
--- a/kernel/futex_compat.c
+++ b/kernel/futex_compat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/futex_compat.c
  *
diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
index 752d6486b67e..c6c50e5c680e 100644
--- a/kernel/gcov/Makefile
+++ b/kernel/gcov/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"'
 
 obj-y := base.o fs.o
diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
index c51a49c9be70..9c7c8d5c18f2 100644
--- a/kernel/gcov/base.c
+++ b/kernel/gcov/base.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  This code maintains a list of active profiling data structures.
  *
diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index edf67c493a8e..6e40ff6be083 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  This code exports profiling data as debugfs files to userspace.
  *
diff --git a/kernel/gcov/gcc_3_4.c b/kernel/gcov/gcc_3_4.c
index 27bc88a35013..1e32e66c9563 100644
--- a/kernel/gcov/gcc_3_4.c
+++ b/kernel/gcov/gcc_3_4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  This code provides functions to handle gcc's profiling data format
  *  introduced with gcc 3.4. Future versions of gcc may change the gcov
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
index 46a18e72bce6..ca5e5c0ef853 100644
--- a/kernel/gcov/gcc_4_7.c
+++ b/kernel/gcov/gcc_4_7.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  This code provides functions to handle gcc's profiling data format
  *  introduced with gcc 4.7.
diff --git a/kernel/gcov/gcov.h b/kernel/gcov/gcov.h
index 92c8e22a29ed..de118ad4a024 100644
--- a/kernel/gcov/gcov.h
+++ b/kernel/gcov/gcov.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Profiling infrastructure declarations.
  *
diff --git a/kernel/groups.c b/kernel/groups.c
index 434f6665f187..e357bc800111 100644
--- a/kernel/groups.c
+++ b/kernel/groups.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Supplementary group IDs
  */
diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index a117adf7084b..89e355866450 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -97,6 +97,12 @@ config HANDLE_DOMAIN_IRQ
 config IRQ_TIMINGS
 	bool
 
+config GENERIC_IRQ_MATRIX_ALLOCATOR
+	bool
+
+config GENERIC_IRQ_RESERVATION_MODE
+	bool
+
 config IRQ_DOMAIN_DEBUG
 	bool "Expose hardware/virtual IRQ mapping via debugfs"
 	depends on IRQ_DOMAIN && DEBUG_FS
diff --git a/kernel/irq/Makefile b/kernel/irq/Makefile
index 1970cafe8f2a..ff6e352e3a6c 100644
--- a/kernel/irq/Makefile
+++ b/kernel/irq/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-y := irqdesc.o handle.o manage.o spurious.o resend.o chip.o dummychip.o devres.o
 obj-$(CONFIG_IRQ_TIMINGS) += timings.o
@@ -13,3 +14,4 @@ obj-$(CONFIG_GENERIC_MSI_IRQ) += msi.o
 obj-$(CONFIG_GENERIC_IRQ_IPI) += ipi.o
 obj-$(CONFIG_SMP) += affinity.o
 obj-$(CONFIG_GENERIC_IRQ_DEBUGFS) += debugfs.o
+obj-$(CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR) += matrix.o
diff --git a/kernel/irq/affinity.c b/kernel/irq/affinity.c
index d69bd77252a7..e12d35108225 100644
--- a/kernel/irq/affinity.c
+++ b/kernel/irq/affinity.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2016 Thomas Gleixner.
  * Copyright (C) 2016-2017 Christoph Hellwig.
diff --git a/kernel/irq/autoprobe.c b/kernel/irq/autoprobe.c
index d30a0dd5cc02..4e8089b319ae 100644
--- a/kernel/irq/autoprobe.c
+++ b/kernel/irq/autoprobe.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/irq/autoprobe.c
  *
@@ -53,7 +54,7 @@ unsigned long probe_irq_on(void)
 			if (desc->irq_data.chip->irq_set_type)
 				desc->irq_data.chip->irq_set_type(&desc->irq_data,
 							 IRQ_TYPE_PROBE);
-			irq_startup(desc, IRQ_NORESEND, IRQ_START_FORCE);
+			irq_activate_and_startup(desc, IRQ_NORESEND);
 		}
 		raw_spin_unlock_irq(&desc->lock);
 	}
diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index f51b7b6d2451..043bfc35b353 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -202,25 +202,29 @@ __irq_startup_managed(struct irq_desc *desc, struct cpumask *aff, bool force)
 
 	irqd_clr_managed_shutdown(d);
 
-	if (cpumask_any_and(aff, cpu_online_mask) > nr_cpu_ids) {
+	if (cpumask_any_and(aff, cpu_online_mask) >= nr_cpu_ids) {
 		/*
 		 * Catch code which fiddles with enable_irq() on a managed
 		 * and potentially shutdown IRQ. Chained interrupt
 		 * installment or irq auto probing should not happen on
-		 * managed irqs either. Emit a warning, break the affinity
-		 * and start it up as a normal interrupt.
+		 * managed irqs either.
 		 */
 		if (WARN_ON_ONCE(force))
-			return IRQ_STARTUP_NORMAL;
+			return IRQ_STARTUP_ABORT;
 		/*
 		 * The interrupt was requested, but there is no online CPU
 		 * in it's affinity mask. Put it into managed shutdown
 		 * state and let the cpu hotplug mechanism start it up once
 		 * a CPU in the mask becomes available.
 		 */
-		irqd_set_managed_shutdown(d);
 		return IRQ_STARTUP_ABORT;
 	}
+	/*
+	 * Managed interrupts have reserved resources, so this should not
+	 * happen.
+	 */
+	if (WARN_ON(irq_domain_activate_irq(d, false)))
+		return IRQ_STARTUP_ABORT;
 	return IRQ_STARTUP_MANAGED;
 }
 #else
@@ -236,7 +240,9 @@ static int __irq_startup(struct irq_desc *desc)
 	struct irq_data *d = irq_desc_get_irq_data(desc);
 	int ret = 0;
 
-	irq_domain_activate_irq(d);
+	/* Warn if this interrupt is not activated but try nevertheless */
+	WARN_ON_ONCE(!irqd_is_activated(d));
+
 	if (d->chip->irq_startup) {
 		ret = d->chip->irq_startup(d);
 		irq_state_clr_disabled(desc);
@@ -265,10 +271,11 @@ int irq_startup(struct irq_desc *desc, bool resend, bool force)
 			irq_setup_affinity(desc);
 			break;
 		case IRQ_STARTUP_MANAGED:
+			irq_do_set_affinity(d, aff, false);
 			ret = __irq_startup(desc);
-			irq_set_affinity_locked(d, aff, false);
 			break;
 		case IRQ_STARTUP_ABORT:
+			irqd_set_managed_shutdown(d);
 			return 0;
 		}
 	}
@@ -278,6 +285,22 @@ int irq_startup(struct irq_desc *desc, bool resend, bool force)
 	return ret;
 }
 
+int irq_activate(struct irq_desc *desc)
+{
+	struct irq_data *d = irq_desc_get_irq_data(desc);
+
+	if (!irqd_affinity_is_managed(d))
+		return irq_domain_activate_irq(d, false);
+	return 0;
+}
+
+void irq_activate_and_startup(struct irq_desc *desc, bool resend)
+{
+	if (WARN_ON(irq_activate(desc)))
+		return;
+	irq_startup(desc, resend, IRQ_START_FORCE);
+}
+
 static void __irq_disable(struct irq_desc *desc, bool mask);
 
 void irq_shutdown(struct irq_desc *desc)
@@ -953,7 +976,7 @@ __irq_do_set_handler(struct irq_desc *desc, irq_flow_handler_t handle,
 		irq_settings_set_norequest(desc);
 		irq_settings_set_nothread(desc);
 		desc->action = &chained_action;
-		irq_startup(desc, IRQ_RESEND, IRQ_START_FORCE);
+		irq_activate_and_startup(desc, IRQ_RESEND);
 	}
 }
 
diff --git a/kernel/irq/cpuhotplug.c b/kernel/irq/cpuhotplug.c
index 638eb9c83d9f..9eb09aef0313 100644
--- a/kernel/irq/cpuhotplug.c
+++ b/kernel/irq/cpuhotplug.c
@@ -18,8 +18,34 @@
 static inline bool irq_needs_fixup(struct irq_data *d)
 {
 	const struct cpumask *m = irq_data_get_effective_affinity_mask(d);
+	unsigned int cpu = smp_processor_id();
 
-	return cpumask_test_cpu(smp_processor_id(), m);
+#ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK
+	/*
+	 * The cpumask_empty() check is a workaround for interrupt chips,
+	 * which do not implement effective affinity, but the architecture has
+	 * enabled the config switch. Use the general affinity mask instead.
+	 */
+	if (cpumask_empty(m))
+		m = irq_data_get_affinity_mask(d);
+
+	/*
+	 * Sanity check. If the mask is not empty when excluding the outgoing
+	 * CPU then it must contain at least one online CPU. The outgoing CPU
+	 * has been removed from the online mask already.
+	 */
+	if (cpumask_any_but(m, cpu) < nr_cpu_ids &&
+	    cpumask_any_and(m, cpu_online_mask) >= nr_cpu_ids) {
+		/*
+		 * If this happens then there was a missed IRQ fixup at some
+		 * point. Warn about it and enforce fixup.
+		 */
+		pr_warn("Eff. affinity %*pbl of IRQ %u contains only offline CPUs after offlining CPU %u\n",
+			cpumask_pr_args(m), d->irq, cpu);
+		return true;
+	}
+#endif
+	return cpumask_test_cpu(cpu, m);
 }
 
 static bool migrate_one_irq(struct irq_desc *desc)
diff --git a/kernel/irq/debug.h b/kernel/irq/debug.h
index e75e29e4434a..17f05ef8f575 100644
--- a/kernel/irq/debug.h
+++ b/kernel/irq/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Debugging printout:
  */
diff --git a/kernel/irq/debugfs.c b/kernel/irq/debugfs.c
index c3fdb36dec30..7f608ac39653 100644
--- a/kernel/irq/debugfs.c
+++ b/kernel/irq/debugfs.c
@@ -81,6 +81,8 @@ irq_debug_show_data(struct seq_file *m, struct irq_data *data, int ind)
 		   data->domain ? data->domain->name : "");
 	seq_printf(m, "%*shwirq:   0x%lx\n", ind + 1, "", data->hwirq);
 	irq_debug_show_chip(m, data, ind + 1);
+	if (data->domain && data->domain->ops && data->domain->ops->debug_show)
+		data->domain->ops->debug_show(m, NULL, data, ind + 1);
 #ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
 	if (!data->parent_data)
 		return;
@@ -149,6 +151,7 @@ static int irq_debug_show(struct seq_file *m, void *p)
 	raw_spin_lock_irq(&desc->lock);
 	data = irq_desc_get_irq_data(desc);
 	seq_printf(m, "handler:  %pf\n", desc->handle_irq);
+	seq_printf(m, "device:   %s\n", desc->dev_name);
 	seq_printf(m, "status:   0x%08x\n", desc->status_use_accessors);
 	irq_debug_show_bits(m, 0, desc->status_use_accessors, irqdesc_states,
 			    ARRAY_SIZE(irqdesc_states));
@@ -226,6 +229,15 @@ static const struct file_operations dfs_irq_ops = {
 	.release	= single_release,
 };
 
+void irq_debugfs_copy_devname(int irq, struct device *dev)
+{
+	struct irq_desc *desc = irq_to_desc(irq);
+	const char *name = dev_name(dev);
+
+	if (name)
+		desc->dev_name = kstrdup(name, GFP_KERNEL);
+}
+
 void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *desc)
 {
 	char name [10];
diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c
index f7086b78ad6e..c26c5bb6b491 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -135,17 +135,26 @@ void irq_gc_ack_clr_bit(struct irq_data *d)
 }
 
 /**
- * irq_gc_mask_disable_reg_and_ack - Mask and ack pending interrupt
+ * irq_gc_mask_disable_and_ack_set - Mask and ack pending interrupt
  * @d: irq_data
+ *
+ * This generic implementation of the irq_mask_ack method is for chips
+ * with separate enable/disable registers instead of a single mask
+ * register and where a pending interrupt is acknowledged by setting a
+ * bit.
+ *
+ * Note: This is the only permutation currently used.  Similar generic
+ * functions should be added here if other permutations are required.
  */
-void irq_gc_mask_disable_reg_and_ack(struct irq_data *d)
+void irq_gc_mask_disable_and_ack_set(struct irq_data *d)
 {
 	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
 	struct irq_chip_type *ct = irq_data_get_chip_type(d);
 	u32 mask = d->mask;
 
 	irq_gc_lock(gc);
-	irq_reg_writel(gc, mask, ct->regs.mask);
+	irq_reg_writel(gc, mask, ct->regs.disable);
+	*ct->mask_cache &= ~mask;
 	irq_reg_writel(gc, mask, ct->regs.ack);
 	irq_gc_unlock(gc);
 }
@@ -322,7 +331,6 @@ int __irq_alloc_domain_generic_chips(struct irq_domain *d, int irqs_per_chip,
 		/* Calc pointer to the next generic chip */
 		tmp += sizeof(*gc) + num_ct * sizeof(struct irq_chip_type);
 	}
-	d->name = name;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(__irq_alloc_domain_generic_chips);
diff --git a/kernel/irq/internals.h b/kernel/irq/internals.h
index a4aa39009f0d..07d08ca701ec 100644
--- a/kernel/irq/internals.h
+++ b/kernel/irq/internals.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * IRQ subsystem internal functions and variables:
  *
@@ -74,6 +75,8 @@ extern void __enable_irq(struct irq_desc *desc);
 #define IRQ_START_FORCE	true
 #define IRQ_START_COND	false
 
+extern int irq_activate(struct irq_desc *desc);
+extern void irq_activate_and_startup(struct irq_desc *desc, bool resend);
 extern int irq_startup(struct irq_desc *desc, bool resend, bool force);
 
 extern void irq_shutdown(struct irq_desc *desc);
@@ -436,6 +439,18 @@ static inline bool irq_fixup_move_pending(struct irq_desc *desc, bool fclear)
 }
 #endif /* !CONFIG_GENERIC_PENDING_IRQ */
 
+#if !defined(CONFIG_IRQ_DOMAIN) || !defined(CONFIG_IRQ_DOMAIN_HIERARCHY)
+static inline int irq_domain_activate_irq(struct irq_data *data, bool early)
+{
+	irqd_set_activated(data);
+	return 0;
+}
+static inline void irq_domain_deactivate_irq(struct irq_data *data)
+{
+	irqd_clr_activated(data);
+}
+#endif
+
 #ifdef CONFIG_GENERIC_IRQ_DEBUGFS
 #include <linux/debugfs.h>
 
@@ -443,7 +458,9 @@ void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *desc);
 static inline void irq_remove_debugfs_entry(struct irq_desc *desc)
 {
 	debugfs_remove(desc->debugfs_file);
+	kfree(desc->dev_name);
 }
+void irq_debugfs_copy_devname(int irq, struct device *dev);
 # ifdef CONFIG_IRQ_DOMAIN
 void irq_domain_debugfs_init(struct dentry *root);
 # else
@@ -458,4 +475,7 @@ static inline void irq_add_debugfs_entry(unsigned int irq, struct irq_desc *d)
 static inline void irq_remove_debugfs_entry(struct irq_desc *d)
 {
 }
+static inline void irq_debugfs_copy_devname(int irq, struct device *dev)
+{
+}
 #endif /* CONFIG_GENERIC_IRQ_DEBUGFS */
diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 82afb7ed369f..f2edcf85780d 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -27,7 +27,7 @@ static struct lock_class_key irq_desc_lock_class;
 #if defined(CONFIG_SMP)
 static int __init irq_affinity_setup(char *str)
 {
-	zalloc_cpumask_var(&irq_default_affinity, GFP_NOWAIT);
+	alloc_bootmem_cpumask_var(&irq_default_affinity);
 	cpulist_parse(str, irq_default_affinity);
 	/*
 	 * Set at least the boot cpu. We don't want to end up with
@@ -40,10 +40,8 @@ __setup("irqaffinity=", irq_affinity_setup);
 
 static void __init init_irq_default_affinity(void)
 {
-#ifdef CONFIG_CPUMASK_OFFSTACK
-	if (!irq_default_affinity)
+	if (!cpumask_available(irq_default_affinity))
 		zalloc_cpumask_var(&irq_default_affinity, GFP_NOWAIT);
-#endif
 	if (cpumask_empty(irq_default_affinity))
 		cpumask_setall(irq_default_affinity);
 }
@@ -448,7 +446,7 @@ static int alloc_descs(unsigned int start, unsigned int cnt, int node,
 		}
 	}
 
-	flags = affinity ? IRQD_AFFINITY_MANAGED : 0;
+	flags = affinity ? IRQD_AFFINITY_MANAGED | IRQD_MANAGED_SHUTDOWN : 0;
 	mask = NULL;
 
 	for (i = 0; i < cnt; i++) {
@@ -462,6 +460,7 @@ static int alloc_descs(unsigned int start, unsigned int cnt, int node,
 			goto err;
 		irq_insert_desc(start + i, desc);
 		irq_sysfs_add(start + i, desc);
+		irq_add_debugfs_entry(start + i, desc);
 	}
 	bitmap_set(allocated_irqs, start, cnt);
 	return start;
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index e84b7056bb08..4f4f60015e8a 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -21,7 +21,6 @@
 static LIST_HEAD(irq_domain_list);
 static DEFINE_MUTEX(irq_domain_mutex);
 
-static DEFINE_MUTEX(revmap_trees_mutex);
 static struct irq_domain *irq_default_domain;
 
 static void irq_domain_check_hierarchy(struct irq_domain *domain);
@@ -211,6 +210,7 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size,
 
 	/* Fill structure */
 	INIT_RADIX_TREE(&domain->revmap_tree, GFP_KERNEL);
+	mutex_init(&domain->revmap_tree_mutex);
 	domain->ops = ops;
 	domain->host_data = host_data;
 	domain->hwirq_max = hwirq_max;
@@ -462,9 +462,9 @@ static void irq_domain_clear_mapping(struct irq_domain *domain,
 	if (hwirq < domain->revmap_size) {
 		domain->linear_revmap[hwirq] = 0;
 	} else {
-		mutex_lock(&revmap_trees_mutex);
+		mutex_lock(&domain->revmap_tree_mutex);
 		radix_tree_delete(&domain->revmap_tree, hwirq);
-		mutex_unlock(&revmap_trees_mutex);
+		mutex_unlock(&domain->revmap_tree_mutex);
 	}
 }
 
@@ -475,9 +475,9 @@ static void irq_domain_set_mapping(struct irq_domain *domain,
 	if (hwirq < domain->revmap_size) {
 		domain->linear_revmap[hwirq] = irq_data->irq;
 	} else {
-		mutex_lock(&revmap_trees_mutex);
+		mutex_lock(&domain->revmap_tree_mutex);
 		radix_tree_insert(&domain->revmap_tree, hwirq, irq_data);
-		mutex_unlock(&revmap_trees_mutex);
+		mutex_unlock(&domain->revmap_tree_mutex);
 	}
 }
 
@@ -921,8 +921,7 @@ static void virq_debug_show_one(struct seq_file *m, struct irq_desc *desc)
 		chip = irq_data_get_irq_chip(data);
 		seq_printf(m, "%-15s  ", (chip && chip->name) ? chip->name : "none");
 
-		seq_printf(m, data ? "0x%p  " : "  %p  ",
-			   irq_data_get_irq_chip_data(data));
+		seq_printf(m, "0x%p  ", irq_data_get_irq_chip_data(data));
 
 		seq_printf(m, "   %c    ", (desc->action && desc->action->handler) ? '*' : ' ');
 		direct = (irq == hwirq) && (irq < domain->revmap_direct_max_irq);
@@ -945,7 +944,7 @@ static int virq_debug_show(struct seq_file *m, void *private)
 	struct irq_desc *desc;
 	struct irq_domain *domain;
 	struct radix_tree_iter iter;
-	void **slot;
+	void __rcu **slot;
 	int i;
 
 	seq_printf(m, " %-16s  %-6s  %-10s  %-10s  %s\n",
@@ -1453,17 +1452,17 @@ out_free_desc:
 /* The irq_data was moved, fix the revmap to refer to the new location */
 static void irq_domain_fix_revmap(struct irq_data *d)
 {
-	void **slot;
+	void __rcu **slot;
 
 	if (d->hwirq < d->domain->revmap_size)
 		return; /* Not using radix tree. */
 
 	/* Fix up the revmap. */
-	mutex_lock(&revmap_trees_mutex);
+	mutex_lock(&d->domain->revmap_tree_mutex);
 	slot = radix_tree_lookup_slot(&d->domain->revmap_tree, d->hwirq);
 	if (slot)
 		radix_tree_replace_slot(&d->domain->revmap_tree, slot, d);
-	mutex_unlock(&revmap_trees_mutex);
+	mutex_unlock(&d->domain->revmap_tree_mutex);
 }
 
 /**
@@ -1682,28 +1681,36 @@ void irq_domain_free_irqs_parent(struct irq_domain *domain,
 }
 EXPORT_SYMBOL_GPL(irq_domain_free_irqs_parent);
 
-static void __irq_domain_activate_irq(struct irq_data *irq_data)
+static void __irq_domain_deactivate_irq(struct irq_data *irq_data)
 {
 	if (irq_data && irq_data->domain) {
 		struct irq_domain *domain = irq_data->domain;
 
+		if (domain->ops->deactivate)
+			domain->ops->deactivate(domain, irq_data);
 		if (irq_data->parent_data)
-			__irq_domain_activate_irq(irq_data->parent_data);
-		if (domain->ops->activate)
-			domain->ops->activate(domain, irq_data);
+			__irq_domain_deactivate_irq(irq_data->parent_data);
 	}
 }
 
-static void __irq_domain_deactivate_irq(struct irq_data *irq_data)
+static int __irq_domain_activate_irq(struct irq_data *irqd, bool early)
 {
-	if (irq_data && irq_data->domain) {
-		struct irq_domain *domain = irq_data->domain;
+	int ret = 0;
 
-		if (domain->ops->deactivate)
-			domain->ops->deactivate(domain, irq_data);
-		if (irq_data->parent_data)
-			__irq_domain_deactivate_irq(irq_data->parent_data);
+	if (irqd && irqd->domain) {
+		struct irq_domain *domain = irqd->domain;
+
+		if (irqd->parent_data)
+			ret = __irq_domain_activate_irq(irqd->parent_data,
+							early);
+		if (!ret && domain->ops->activate) {
+			ret = domain->ops->activate(domain, irqd, early);
+			/* Rollback in case of error */
+			if (ret && irqd->parent_data)
+				__irq_domain_deactivate_irq(irqd->parent_data);
+		}
 	}
+	return ret;
 }
 
 /**
@@ -1714,12 +1721,15 @@ static void __irq_domain_deactivate_irq(struct irq_data *irq_data)
  * This is the second step to call domain_ops->activate to program interrupt
  * controllers, so the interrupt could actually get delivered.
  */
-void irq_domain_activate_irq(struct irq_data *irq_data)
+int irq_domain_activate_irq(struct irq_data *irq_data, bool early)
 {
-	if (!irqd_is_activated(irq_data)) {
-		__irq_domain_activate_irq(irq_data);
+	int ret = 0;
+
+	if (!irqd_is_activated(irq_data))
+		ret = __irq_domain_activate_irq(irq_data, early);
+	if (!ret)
 		irqd_set_activated(irq_data);
-	}
+	return ret;
 }
 
 /**
@@ -1810,6 +1820,8 @@ irq_domain_debug_show_one(struct seq_file *m, struct irq_domain *d, int ind)
 		   d->revmap_size + d->revmap_direct_max_irq);
 	seq_printf(m, "%*smapped: %u\n", ind + 1, "", d->mapcount);
 	seq_printf(m, "%*sflags:  0x%08x\n", ind +1 , "", d->flags);
+	if (d->ops && d->ops->debug_show)
+		d->ops->debug_show(m, d, NULL, ind + 1);
 #ifdef	CONFIG_IRQ_DOMAIN_HIERARCHY
 	if (!d->parent)
 		return;
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 573dc52b0806..2ff1c0c82fc9 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -168,6 +168,19 @@ void irq_set_thread_affinity(struct irq_desc *desc)
 			set_bit(IRQTF_AFFINITY, &action->thread_flags);
 }
 
+static void irq_validate_effective_affinity(struct irq_data *data)
+{
+#ifdef CONFIG_GENERIC_IRQ_EFFECTIVE_AFF_MASK
+	const struct cpumask *m = irq_data_get_effective_affinity_mask(data);
+	struct irq_chip *chip = irq_data_get_irq_chip(data);
+
+	if (!cpumask_empty(m))
+		return;
+	pr_warn_once("irq_chip %s did not update eff. affinity mask of irq %u\n",
+		     chip->name, data->irq);
+#endif
+}
+
 int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask,
 			bool force)
 {
@@ -175,12 +188,16 @@ int irq_do_set_affinity(struct irq_data *data, const struct cpumask *mask,
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
 	int ret;
 
+	if (!chip || !chip->irq_set_affinity)
+		return -EINVAL;
+
 	ret = chip->irq_set_affinity(data, mask, force);
 	switch (ret) {
 	case IRQ_SET_MASK_OK:
 	case IRQ_SET_MASK_OK_DONE:
 		cpumask_copy(desc->irq_common_data.affinity, mask);
 	case IRQ_SET_MASK_OK_NOCOPY:
+		irq_validate_effective_affinity(data);
 		irq_set_thread_affinity(desc);
 		ret = 0;
 	}
@@ -381,7 +398,8 @@ int irq_select_affinity_usr(unsigned int irq)
 /**
  *	irq_set_vcpu_affinity - Set vcpu affinity for the interrupt
  *	@irq: interrupt number to set affinity
- *	@vcpu_info: vCPU specific data
+ *	@vcpu_info: vCPU specific data or pointer to a percpu array of vCPU
+ *	            specific data for percpu_devid interrupts
  *
  *	This function uses the vCPU specific data to set the vCPU
  *	affinity for an irq. The vCPU specific data is passed from
@@ -519,7 +537,7 @@ void __enable_irq(struct irq_desc *desc)
 		 * time. If it was already started up, then irq_startup()
 		 * will invoke irq_enable() under the hood.
 		 */
-		irq_startup(desc, IRQ_RESEND, IRQ_START_COND);
+		irq_startup(desc, IRQ_RESEND, IRQ_START_FORCE);
 		break;
 	}
 	default:
@@ -1288,7 +1306,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 		 * thread_mask assigned. See the loop above which or's
 		 * all existing action->thread_mask bits.
 		 */
-		new->thread_mask = 1 << ffz(thread_mask);
+		new->thread_mask = 1UL << ffz(thread_mask);
 
 	} else if (new->handler == irq_default_primary_handler &&
 		   !(desc->irq_data.chip->flags & IRQCHIP_ONESHOT_SAFE)) {
@@ -1325,6 +1343,21 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 				goto out_unlock;
 		}
 
+		/*
+		 * Activate the interrupt. That activation must happen
+		 * independently of IRQ_NOAUTOEN. request_irq() can fail
+		 * and the callers are supposed to handle
+		 * that. enable_irq() of an interrupt requested with
+		 * IRQ_NOAUTOEN is not supposed to fail. The activation
+		 * keeps it in shutdown mode, it merily associates
+		 * resources if necessary and if that's not possible it
+		 * fails. Interrupts which are in managed shutdown mode
+		 * will simply ignore that activation request.
+		 */
+		ret = irq_activate(desc);
+		if (ret)
+			goto out_unlock;
+
 		desc->istate &= ~(IRQS_AUTODETECT | IRQS_SPURIOUS_DISABLED | \
 				  IRQS_ONESHOT | IRQS_WAITING);
 		irqd_clear(&desc->irq_data, IRQD_IRQ_INPROGRESS);
@@ -1400,7 +1433,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 		wake_up_process(new->secondary->thread);
 
 	register_irq_proc(irq, desc);
-	irq_add_debugfs_entry(irq, desc);
 	new->dir = NULL;
 	register_handler_proc(irq, new);
 	return 0;
@@ -1643,6 +1675,10 @@ const void *free_irq(unsigned int irq, void *dev_id)
 #endif
 
 	action = __free_irq(irq, dev_id);
+
+	if (!action)
+		return NULL;
+
 	devname = action->name;
 	kfree(action);
 	return devname;
diff --git a/kernel/irq/matrix.c b/kernel/irq/matrix.c
new file mode 100644
index 000000000000..a3cbbc8191c5
--- /dev/null
+++ b/kernel/irq/matrix.c
@@ -0,0 +1,443 @@
+/*
+ * Copyright (C) 2017 Thomas Gleixner <tglx@linutronix.de>
+ *
+ * SPDX-License-Identifier: GPL-2.0
+ */
+#include <linux/spinlock.h>
+#include <linux/seq_file.h>
+#include <linux/bitmap.h>
+#include <linux/percpu.h>
+#include <linux/cpu.h>
+#include <linux/irq.h>
+
+#define IRQ_MATRIX_SIZE	(BITS_TO_LONGS(IRQ_MATRIX_BITS) * sizeof(unsigned long))
+
+struct cpumap {
+	unsigned int		available;
+	unsigned int		allocated;
+	unsigned int		managed;
+	bool			online;
+	unsigned long		alloc_map[IRQ_MATRIX_SIZE];
+	unsigned long		managed_map[IRQ_MATRIX_SIZE];
+};
+
+struct irq_matrix {
+	unsigned int		matrix_bits;
+	unsigned int		alloc_start;
+	unsigned int		alloc_end;
+	unsigned int		alloc_size;
+	unsigned int		global_available;
+	unsigned int		global_reserved;
+	unsigned int		systembits_inalloc;
+	unsigned int		total_allocated;
+	unsigned int		online_maps;
+	struct cpumap __percpu	*maps;
+	unsigned long		scratch_map[IRQ_MATRIX_SIZE];
+	unsigned long		system_map[IRQ_MATRIX_SIZE];
+};
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/irq_matrix.h>
+
+/**
+ * irq_alloc_matrix - Allocate a irq_matrix structure and initialize it
+ * @matrix_bits:	Number of matrix bits must be <= IRQ_MATRIX_BITS
+ * @alloc_start:	From which bit the allocation search starts
+ * @alloc_end:		At which bit the allocation search ends, i.e first
+ *			invalid bit
+ */
+__init struct irq_matrix *irq_alloc_matrix(unsigned int matrix_bits,
+					   unsigned int alloc_start,
+					   unsigned int alloc_end)
+{
+	struct irq_matrix *m;
+
+	if (matrix_bits > IRQ_MATRIX_BITS)
+		return NULL;
+
+	m = kzalloc(sizeof(*m), GFP_KERNEL);
+	if (!m)
+		return NULL;
+
+	m->matrix_bits = matrix_bits;
+	m->alloc_start = alloc_start;
+	m->alloc_end = alloc_end;
+	m->alloc_size = alloc_end - alloc_start;
+	m->maps = alloc_percpu(*m->maps);
+	if (!m->maps) {
+		kfree(m);
+		return NULL;
+	}
+	return m;
+}
+
+/**
+ * irq_matrix_online - Bring the local CPU matrix online
+ * @m:		Matrix pointer
+ */
+void irq_matrix_online(struct irq_matrix *m)
+{
+	struct cpumap *cm = this_cpu_ptr(m->maps);
+
+	BUG_ON(cm->online);
+
+	bitmap_zero(cm->alloc_map, m->matrix_bits);
+	cm->available = m->alloc_size - (cm->managed + m->systembits_inalloc);
+	cm->allocated = 0;
+	m->global_available += cm->available;
+	cm->online = true;
+	m->online_maps++;
+	trace_irq_matrix_online(m);
+}
+
+/**
+ * irq_matrix_offline - Bring the local CPU matrix offline
+ * @m:		Matrix pointer
+ */
+void irq_matrix_offline(struct irq_matrix *m)
+{
+	struct cpumap *cm = this_cpu_ptr(m->maps);
+
+	/* Update the global available size */
+	m->global_available -= cm->available;
+	cm->online = false;
+	m->online_maps--;
+	trace_irq_matrix_offline(m);
+}
+
+static unsigned int matrix_alloc_area(struct irq_matrix *m, struct cpumap *cm,
+				      unsigned int num, bool managed)
+{
+	unsigned int area, start = m->alloc_start;
+	unsigned int end = m->alloc_end;
+
+	bitmap_or(m->scratch_map, cm->managed_map, m->system_map, end);
+	bitmap_or(m->scratch_map, m->scratch_map, cm->alloc_map, end);
+	area = bitmap_find_next_zero_area(m->scratch_map, end, start, num, 0);
+	if (area >= end)
+		return area;
+	if (managed)
+		bitmap_set(cm->managed_map, area, num);
+	else
+		bitmap_set(cm->alloc_map, area, num);
+	return area;
+}
+
+/**
+ * irq_matrix_assign_system - Assign system wide entry in the matrix
+ * @m:		Matrix pointer
+ * @bit:	Which bit to reserve
+ * @replace:	Replace an already allocated vector with a system
+ *		vector at the same bit position.
+ *
+ * The BUG_ON()s below are on purpose. If this goes wrong in the
+ * early boot process, then the chance to survive is about zero.
+ * If this happens when the system is life, it's not much better.
+ */
+void irq_matrix_assign_system(struct irq_matrix *m, unsigned int bit,
+			      bool replace)
+{
+	struct cpumap *cm = this_cpu_ptr(m->maps);
+
+	BUG_ON(bit > m->matrix_bits);
+	BUG_ON(m->online_maps > 1 || (m->online_maps && !replace));
+
+	set_bit(bit, m->system_map);
+	if (replace) {
+		BUG_ON(!test_and_clear_bit(bit, cm->alloc_map));
+		cm->allocated--;
+		m->total_allocated--;
+	}
+	if (bit >= m->alloc_start && bit < m->alloc_end)
+		m->systembits_inalloc++;
+
+	trace_irq_matrix_assign_system(bit, m);
+}
+
+/**
+ * irq_matrix_reserve_managed - Reserve a managed interrupt in a CPU map
+ * @m:		Matrix pointer
+ * @msk:	On which CPUs the bits should be reserved.
+ *
+ * Can be called for offline CPUs. Note, this will only reserve one bit
+ * on all CPUs in @msk, but it's not guaranteed that the bits are at the
+ * same offset on all CPUs
+ */
+int irq_matrix_reserve_managed(struct irq_matrix *m, const struct cpumask *msk)
+{
+	unsigned int cpu, failed_cpu;
+
+	for_each_cpu(cpu, msk) {
+		struct cpumap *cm = per_cpu_ptr(m->maps, cpu);
+		unsigned int bit;
+
+		bit = matrix_alloc_area(m, cm, 1, true);
+		if (bit >= m->alloc_end)
+			goto cleanup;
+		cm->managed++;
+		if (cm->online) {
+			cm->available--;
+			m->global_available--;
+		}
+		trace_irq_matrix_reserve_managed(bit, cpu, m, cm);
+	}
+	return 0;
+cleanup:
+	failed_cpu = cpu;
+	for_each_cpu(cpu, msk) {
+		if (cpu == failed_cpu)
+			break;
+		irq_matrix_remove_managed(m, cpumask_of(cpu));
+	}
+	return -ENOSPC;
+}
+
+/**
+ * irq_matrix_remove_managed - Remove managed interrupts in a CPU map
+ * @m:		Matrix pointer
+ * @msk:	On which CPUs the bits should be removed
+ *
+ * Can be called for offline CPUs
+ *
+ * This removes not allocated managed interrupts from the map. It does
+ * not matter which one because the managed interrupts free their
+ * allocation when they shut down. If not, the accounting is screwed,
+ * but all what can be done at this point is warn about it.
+ */
+void irq_matrix_remove_managed(struct irq_matrix *m, const struct cpumask *msk)
+{
+	unsigned int cpu;
+
+	for_each_cpu(cpu, msk) {
+		struct cpumap *cm = per_cpu_ptr(m->maps, cpu);
+		unsigned int bit, end = m->alloc_end;
+
+		if (WARN_ON_ONCE(!cm->managed))
+			continue;
+
+		/* Get managed bit which are not allocated */
+		bitmap_andnot(m->scratch_map, cm->managed_map, cm->alloc_map, end);
+
+		bit = find_first_bit(m->scratch_map, end);
+		if (WARN_ON_ONCE(bit >= end))
+			continue;
+
+		clear_bit(bit, cm->managed_map);
+
+		cm->managed--;
+		if (cm->online) {
+			cm->available++;
+			m->global_available++;
+		}
+		trace_irq_matrix_remove_managed(bit, cpu, m, cm);
+	}
+}
+
+/**
+ * irq_matrix_alloc_managed - Allocate a managed interrupt in a CPU map
+ * @m:		Matrix pointer
+ * @cpu:	On which CPU the interrupt should be allocated
+ */
+int irq_matrix_alloc_managed(struct irq_matrix *m, unsigned int cpu)
+{
+	struct cpumap *cm = per_cpu_ptr(m->maps, cpu);
+	unsigned int bit, end = m->alloc_end;
+
+	/* Get managed bit which are not allocated */
+	bitmap_andnot(m->scratch_map, cm->managed_map, cm->alloc_map, end);
+	bit = find_first_bit(m->scratch_map, end);
+	if (bit >= end)
+		return -ENOSPC;
+	set_bit(bit, cm->alloc_map);
+	cm->allocated++;
+	m->total_allocated++;
+	trace_irq_matrix_alloc_managed(bit, cpu, m, cm);
+	return bit;
+}
+
+/**
+ * irq_matrix_assign - Assign a preallocated interrupt in the local CPU map
+ * @m:		Matrix pointer
+ * @bit:	Which bit to mark
+ *
+ * This should only be used to mark preallocated vectors
+ */
+void irq_matrix_assign(struct irq_matrix *m, unsigned int bit)
+{
+	struct cpumap *cm = this_cpu_ptr(m->maps);
+
+	if (WARN_ON_ONCE(bit < m->alloc_start || bit >= m->alloc_end))
+		return;
+	if (WARN_ON_ONCE(test_and_set_bit(bit, cm->alloc_map)))
+		return;
+	cm->allocated++;
+	m->total_allocated++;
+	cm->available--;
+	m->global_available--;
+	trace_irq_matrix_assign(bit, smp_processor_id(), m, cm);
+}
+
+/**
+ * irq_matrix_reserve - Reserve interrupts
+ * @m:		Matrix pointer
+ *
+ * This is merily a book keeping call. It increments the number of globally
+ * reserved interrupt bits w/o actually allocating them. This allows to
+ * setup interrupt descriptors w/o assigning low level resources to it.
+ * The actual allocation happens when the interrupt gets activated.
+ */
+void irq_matrix_reserve(struct irq_matrix *m)
+{
+	if (m->global_reserved <= m->global_available &&
+	    m->global_reserved + 1 > m->global_available)
+		pr_warn("Interrupt reservation exceeds available resources\n");
+
+	m->global_reserved++;
+	trace_irq_matrix_reserve(m);
+}
+
+/**
+ * irq_matrix_remove_reserved - Remove interrupt reservation
+ * @m:		Matrix pointer
+ *
+ * This is merily a book keeping call. It decrements the number of globally
+ * reserved interrupt bits. This is used to undo irq_matrix_reserve() when the
+ * interrupt was never in use and a real vector allocated, which undid the
+ * reservation.
+ */
+void irq_matrix_remove_reserved(struct irq_matrix *m)
+{
+	m->global_reserved--;
+	trace_irq_matrix_remove_reserved(m);
+}
+
+/**
+ * irq_matrix_alloc - Allocate a regular interrupt in a CPU map
+ * @m:		Matrix pointer
+ * @msk:	Which CPUs to search in
+ * @reserved:	Allocate previously reserved interrupts
+ * @mapped_cpu: Pointer to store the CPU for which the irq was allocated
+ */
+int irq_matrix_alloc(struct irq_matrix *m, const struct cpumask *msk,
+		     bool reserved, unsigned int *mapped_cpu)
+{
+	unsigned int cpu;
+
+	for_each_cpu(cpu, msk) {
+		struct cpumap *cm = per_cpu_ptr(m->maps, cpu);
+		unsigned int bit;
+
+		if (!cm->online)
+			continue;
+
+		bit = matrix_alloc_area(m, cm, 1, false);
+		if (bit < m->alloc_end) {
+			cm->allocated++;
+			cm->available--;
+			m->total_allocated++;
+			m->global_available--;
+			if (reserved)
+				m->global_reserved--;
+			*mapped_cpu = cpu;
+			trace_irq_matrix_alloc(bit, cpu, m, cm);
+			return bit;
+		}
+	}
+	return -ENOSPC;
+}
+
+/**
+ * irq_matrix_free - Free allocated interrupt in the matrix
+ * @m:		Matrix pointer
+ * @cpu:	Which CPU map needs be updated
+ * @bit:	The bit to remove
+ * @managed:	If true, the interrupt is managed and not accounted
+ *		as available.
+ */
+void irq_matrix_free(struct irq_matrix *m, unsigned int cpu,
+		     unsigned int bit, bool managed)
+{
+	struct cpumap *cm = per_cpu_ptr(m->maps, cpu);
+
+	if (WARN_ON_ONCE(bit < m->alloc_start || bit >= m->alloc_end))
+		return;
+
+	if (cm->online) {
+		clear_bit(bit, cm->alloc_map);
+		cm->allocated--;
+		m->total_allocated--;
+		if (!managed) {
+			cm->available++;
+			m->global_available++;
+		}
+	}
+	trace_irq_matrix_free(bit, cpu, m, cm);
+}
+
+/**
+ * irq_matrix_available - Get the number of globally available irqs
+ * @m:		Pointer to the matrix to query
+ * @cpudown:	If true, the local CPU is about to go down, adjust
+ *		the number of available irqs accordingly
+ */
+unsigned int irq_matrix_available(struct irq_matrix *m, bool cpudown)
+{
+	struct cpumap *cm = this_cpu_ptr(m->maps);
+
+	return m->global_available - cpudown ? cm->available : 0;
+}
+
+/**
+ * irq_matrix_reserved - Get the number of globally reserved irqs
+ * @m:		Pointer to the matrix to query
+ */
+unsigned int irq_matrix_reserved(struct irq_matrix *m)
+{
+	return m->global_reserved;
+}
+
+/**
+ * irq_matrix_allocated - Get the number of allocated irqs on the local cpu
+ * @m:		Pointer to the matrix to search
+ *
+ * This returns number of allocated irqs
+ */
+unsigned int irq_matrix_allocated(struct irq_matrix *m)
+{
+	struct cpumap *cm = this_cpu_ptr(m->maps);
+
+	return cm->allocated;
+}
+
+#ifdef CONFIG_GENERIC_IRQ_DEBUGFS
+/**
+ * irq_matrix_debug_show - Show detailed allocation information
+ * @sf:		Pointer to the seq_file to print to
+ * @m:		Pointer to the matrix allocator
+ * @ind:	Indentation for the print format
+ *
+ * Note, this is a lockless snapshot.
+ */
+void irq_matrix_debug_show(struct seq_file *sf, struct irq_matrix *m, int ind)
+{
+	unsigned int nsys = bitmap_weight(m->system_map, m->matrix_bits);
+	int cpu;
+
+	seq_printf(sf, "Online bitmaps:   %6u\n", m->online_maps);
+	seq_printf(sf, "Global available: %6u\n", m->global_available);
+	seq_printf(sf, "Global reserved:  %6u\n", m->global_reserved);
+	seq_printf(sf, "Total allocated:  %6u\n", m->total_allocated);
+	seq_printf(sf, "System: %u: %*pbl\n", nsys, m->matrix_bits,
+		   m->system_map);
+	seq_printf(sf, "%*s| CPU | avl | man | act | vectors\n", ind, " ");
+	cpus_read_lock();
+	for_each_online_cpu(cpu) {
+		struct cpumap *cm = per_cpu_ptr(m->maps, cpu);
+
+		seq_printf(sf, "%*s %4d  %4u  %4u  %4u  %*pbl\n", ind, " ",
+			   cpu, cm->available, cm->managed, cm->allocated,
+			   m->matrix_bits, cm->alloc_map);
+	}
+	cpus_read_unlock();
+}
+#endif
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index 6ca054a3f91d..86ae0eb80b53 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/irq.h>
 #include <linux/interrupt.h>
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 3fa4bd59f569..edb987b2c58d 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -16,6 +16,8 @@
 #include <linux/msi.h>
 #include <linux/slab.h>
 
+#include "internals.h"
+
 /**
  * alloc_msi_entry - Allocate an initialize msi_entry
  * @dev:	Pointer to the device for which this is allocated
@@ -100,13 +102,14 @@ int msi_domain_set_affinity(struct irq_data *irq_data,
 	return ret;
 }
 
-static void msi_domain_activate(struct irq_domain *domain,
-				struct irq_data *irq_data)
+static int msi_domain_activate(struct irq_domain *domain,
+			       struct irq_data *irq_data, bool early)
 {
 	struct msi_msg msg;
 
 	BUG_ON(irq_chip_compose_msi_msg(irq_data, &msg));
 	irq_chip_write_msi_msg(irq_data, &msg);
+	return 0;
 }
 
 static void msi_domain_deactivate(struct irq_domain *domain,
@@ -373,8 +376,10 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
 			return ret;
 		}
 
-		for (i = 0; i < desc->nvec_used; i++)
+		for (i = 0; i < desc->nvec_used; i++) {
 			irq_set_msi_desc_off(virq, i, desc);
+			irq_debugfs_copy_devname(virq + i, dev);
+		}
 	}
 
 	if (ops->msi_finish)
@@ -396,11 +401,28 @@ int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
 			struct irq_data *irq_data;
 
 			irq_data = irq_domain_get_irq_data(domain, desc->irq);
-			irq_domain_activate_irq(irq_data);
+			ret = irq_domain_activate_irq(irq_data, true);
+			if (ret)
+				goto cleanup;
+			if (info->flags & MSI_FLAG_MUST_REACTIVATE)
+				irqd_clr_activated(irq_data);
 		}
 	}
-
 	return 0;
+
+cleanup:
+	for_each_msi_entry(desc, dev) {
+		struct irq_data *irqd;
+
+		if (desc->irq == virq)
+			break;
+
+		irqd = irq_domain_get_irq_data(domain, desc->irq);
+		if (irqd_is_activated(irqd))
+			irq_domain_deactivate_irq(irqd);
+	}
+	msi_domain_free_irqs(domain, dev);
+	return ret;
 }
 
 /**
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 6376b4a598d3..e8f374971e37 100644
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/irq/proc.c
  *
@@ -154,8 +155,9 @@ static ssize_t write_irq_affinity(int type, struct file *file,
 		 */
 		err = irq_select_affinity_usr(irq) ? -EINVAL : count;
 	} else {
-		irq_set_affinity(irq, new_value);
-		err = count;
+		err = irq_set_affinity(irq, new_value);
+		if (!err)
+			err = count;
 	}
 
 free_cpumask:
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c
index b86886beee4f..1d08f45135c2 100644
--- a/kernel/irq/resend.c
+++ b/kernel/irq/resend.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/irq/resend.c
  *
diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
index 320579d89091..e43795cd2ccf 100644
--- a/kernel/irq/settings.h
+++ b/kernel/irq/settings.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Internal header to deal with irq_desc->status which will be renamed
  * to irq_desc->settings.
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 061ba7eed4ed..1215229d1c12 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/irq/spurious.c
  *
@@ -20,7 +21,7 @@ static int irqfixup __read_mostly;
 
 #define POLL_SPURIOUS_IRQ_INTERVAL (HZ/10)
 static void poll_spurious_irqs(unsigned long dummy);
-static DEFINE_TIMER(poll_spurious_irq_timer, poll_spurious_irqs, 0, 0);
+static DEFINE_TIMER(poll_spurious_irq_timer, poll_spurious_irqs);
 static int irq_poll_cpu;
 static atomic_t irq_poll_active;
 
diff --git a/kernel/irq/timings.c b/kernel/irq/timings.c
index c8c1d073fbf1..e0923fa4927a 100644
--- a/kernel/irq/timings.c
+++ b/kernel/irq/timings.c
@@ -264,7 +264,7 @@ u64 irq_timings_next_event(u64 now)
 	 * order to prevent the timings circular buffer to be updated
 	 * while we are reading it.
 	 */
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	/*
 	 * Number of elements in the circular buffer: If it happens it
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index bcf107ce0854..40e9d739c169 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -56,7 +56,6 @@ void __weak arch_irq_work_raise(void)
 	 */
 }
 
-#ifdef CONFIG_SMP
 /*
  * Enqueue the irq_work @work on @cpu unless it's already pending
  * somewhere.
@@ -68,6 +67,8 @@ bool irq_work_queue_on(struct irq_work *work, int cpu)
 	/* All work should have been flushed before going offline */
 	WARN_ON_ONCE(cpu_is_offline(cpu));
 
+#ifdef CONFIG_SMP
+
 	/* Arch remote IPI send/receive backend aren't NMI safe */
 	WARN_ON_ONCE(in_nmi());
 
@@ -78,10 +79,12 @@ bool irq_work_queue_on(struct irq_work *work, int cpu)
 	if (llist_add(&work->llnode, &per_cpu(raised_list, cpu)))
 		arch_send_call_function_single_ipi(cpu);
 
+#else /* #ifdef CONFIG_SMP */
+	irq_work_queue(work);
+#endif /* #else #ifdef CONFIG_SMP */
+
 	return true;
 }
-EXPORT_SYMBOL_GPL(irq_work_queue_on);
-#endif
 
 /* Enqueue the irq work @work on the current CPU */
 bool irq_work_queue(struct irq_work *work)
@@ -128,9 +131,9 @@ bool irq_work_needs_cpu(void)
 
 static void irq_work_run_list(struct llist_head *list)
 {
-	unsigned long flags;
-	struct irq_work *work;
+	struct irq_work *work, *tmp;
 	struct llist_node *llnode;
+	unsigned long flags;
 
 	BUG_ON(!irqs_disabled());
 
@@ -138,11 +141,7 @@ static void irq_work_run_list(struct llist_head *list)
 		return;
 
 	llnode = llist_del_all(list);
-	while (llnode != NULL) {
-		work = llist_entry(llnode, struct irq_work, llnode);
-
-		llnode = llist_next(llnode);
-
+	llist_for_each_entry_safe(work, tmp, llnode, llnode) {
 		/*
 		 * Clear the PENDING bit, after this point the @work
 		 * can be re-used.
@@ -188,7 +187,7 @@ void irq_work_tick(void)
  */
 void irq_work_sync(struct irq_work *work)
 {
-	WARN_ON_ONCE(irqs_disabled());
+	lockdep_assert_irqs_enabled();
 
 	while (work->flags & IRQ_WORK_BUSY)
 		cpu_relax();
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 0bf2e8f5244a..8ff4ca4665ff 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -83,7 +83,7 @@ static void static_key_slow_inc_cpuslocked(struct static_key *key)
 {
 	int v, v1;
 
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 
 	/*
 	 * Careful if we get concurrent static_key_slow_inc() calls;
@@ -128,7 +128,7 @@ EXPORT_SYMBOL_GPL(static_key_slow_inc);
 
 void static_key_enable_cpuslocked(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 
 	if (atomic_read(&key->enabled) > 0) {
 		WARN_ON_ONCE(atomic_read(&key->enabled) != 1);
@@ -158,7 +158,7 @@ EXPORT_SYMBOL_GPL(static_key_enable);
 
 void static_key_disable_cpuslocked(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 
 	if (atomic_read(&key->enabled) != 1) {
 		WARN_ON_ONCE(atomic_read(&key->enabled) != 0);
@@ -224,21 +224,21 @@ static void jump_label_update_timeout(struct work_struct *work)
 
 void static_key_slow_dec(struct static_key *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	__static_key_slow_dec(key, 0, NULL);
 }
 EXPORT_SYMBOL_GPL(static_key_slow_dec);
 
 void static_key_slow_dec_deferred(struct static_key_deferred *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	__static_key_slow_dec(&key->key, key->timeout, &key->work);
 }
 EXPORT_SYMBOL_GPL(static_key_slow_dec_deferred);
 
 void static_key_deferred_flush(struct static_key_deferred *key)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	flush_delayed_work(&key->work);
 }
 EXPORT_SYMBOL_GPL(static_key_deferred_flush);
@@ -246,7 +246,7 @@ EXPORT_SYMBOL_GPL(static_key_deferred_flush);
 void jump_label_rate_limit(struct static_key_deferred *key,
 		unsigned long rl)
 {
-	STATIC_KEY_CHECK_USE();
+	STATIC_KEY_CHECK_USE(key);
 	key->timeout = rl;
 	INIT_DELAYED_WORK(&key->work, jump_label_update_timeout);
 }
diff --git a/kernel/kallsyms.c b/kernel/kallsyms.c
index 127e7cfafa55..1e6ae66c6244 100644
--- a/kernel/kallsyms.c
+++ b/kernel/kallsyms.c
@@ -480,6 +480,7 @@ struct kallsym_iter {
 	char name[KSYM_NAME_LEN];
 	char module_name[MODULE_NAME_LEN];
 	int exported;
+	int show_value;
 };
 
 static int get_ksymbol_mod(struct kallsym_iter *iter)
@@ -582,12 +583,15 @@ static void s_stop(struct seq_file *m, void *p)
 
 static int s_show(struct seq_file *m, void *p)
 {
+	unsigned long value;
 	struct kallsym_iter *iter = m->private;
 
 	/* Some debugging symbols have no name.  Ignore them. */
 	if (!iter->name[0])
 		return 0;
 
+	value = iter->show_value ? iter->value : 0;
+
 	if (iter->module_name[0]) {
 		char type;
 
@@ -597,10 +601,10 @@ static int s_show(struct seq_file *m, void *p)
 		 */
 		type = iter->exported ? toupper(iter->type) :
 					tolower(iter->type);
-		seq_printf(m, "%pK %c %s\t[%s]\n", (void *)iter->value,
+		seq_printf(m, KALLSYM_FMT " %c %s\t[%s]\n", value,
 			   type, iter->name, iter->module_name);
 	} else
-		seq_printf(m, "%pK %c %s\n", (void *)iter->value,
+		seq_printf(m, KALLSYM_FMT " %c %s\n", value,
 			   iter->type, iter->name);
 	return 0;
 }
@@ -612,6 +616,40 @@ static const struct seq_operations kallsyms_op = {
 	.show = s_show
 };
 
+static inline int kallsyms_for_perf(void)
+{
+#ifdef CONFIG_PERF_EVENTS
+	extern int sysctl_perf_event_paranoid;
+	if (sysctl_perf_event_paranoid <= 1)
+		return 1;
+#endif
+	return 0;
+}
+
+/*
+ * We show kallsyms information even to normal users if we've enabled
+ * kernel profiling and are explicitly not paranoid (so kptr_restrict
+ * is clear, and sysctl_perf_event_paranoid isn't set).
+ *
+ * Otherwise, require CAP_SYSLOG (assuming kptr_restrict isn't set to
+ * block even that).
+ */
+int kallsyms_show_value(void)
+{
+	switch (kptr_restrict) {
+	case 0:
+		if (kallsyms_for_perf())
+			return 1;
+	/* fallthrough */
+	case 1:
+		if (has_capability_noaudit(current, CAP_SYSLOG))
+			return 1;
+	/* fallthrough */
+	default:
+		return 0;
+	}
+}
+
 static int kallsyms_open(struct inode *inode, struct file *file)
 {
 	/*
@@ -625,6 +663,7 @@ static int kallsyms_open(struct inode *inode, struct file *file)
 		return -ENOMEM;
 	reset_iter(iter, 0);
 
+	iter->show_value = kallsyms_show_value();
 	return 0;
 }
 
diff --git a/kernel/kcmp.c b/kernel/kcmp.c
index ea34ed8bb952..a0e3d7a0e8b8 100644
--- a/kernel/kcmp.c
+++ b/kernel/kcmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/syscalls.h>
 #include <linux/fdtable.h>
@@ -131,7 +132,7 @@ static int kcmp_epoll_target(struct task_struct *task1,
 	if (filp_epoll) {
 		filp_tgt = get_epoll_tfile_raw_ptr(filp_epoll, slot.tfd, slot.toff);
 		fput(filp_epoll);
-	} else
+	}
 
 	if (IS_ERR(filp_tgt))
 		return PTR_ERR(filp_tgt);
diff --git a/kernel/kcov.c b/kernel/kcov.c
index 3f693a0f6f3e..fc6af9e1308b 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) "kcov: " fmt
 
 #define DISABLE_BRANCH_PROFILING
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 9f48f4412297..e5bcd94c1efb 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -406,9 +406,10 @@ static int locate_mem_hole_bottom_up(unsigned long start, unsigned long end,
 	return 1;
 }
 
-static int locate_mem_hole_callback(u64 start, u64 end, void *arg)
+static int locate_mem_hole_callback(struct resource *res, void *arg)
 {
 	struct kexec_buf *kbuf = (struct kexec_buf *)arg;
+	u64 start = res->start, end = res->end;
 	unsigned long sz = end - start + 1;
 
 	/* Returning 0 will take to next memory range */
@@ -437,7 +438,7 @@ static int locate_mem_hole_callback(u64 start, u64 end, void *arg)
  * func returning non-zero, then zero will be returned.
  */
 int __weak arch_kexec_walk_mem(struct kexec_buf *kbuf,
-			       int (*func)(u64, u64, void *))
+			       int (*func)(struct resource *, void *))
 {
 	if (kbuf->image->type == KEXEC_TYPE_CRASH)
 		return walk_iomem_res_desc(crashk_res.desc,
diff --git a/kernel/kexec_internal.h b/kernel/kexec_internal.h
index 50dfcb039a41..48aaf2ac0d0d 100644
--- a/kernel/kexec_internal.h
+++ b/kernel/kexec_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_KEXEC_INTERNAL_H
 #define LINUX_KEXEC_INTERNAL_H
 
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index a1606a4224e1..da2ccf142358 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -117,7 +117,7 @@ enum kprobe_slot_state {
 	SLOT_USED = 2,
 };
 
-static void *alloc_insn_page(void)
+void __weak *alloc_insn_page(void)
 {
 	return module_alloc(PAGE_SIZE);
 }
@@ -573,13 +573,15 @@ static void kprobe_optimizer(struct work_struct *work)
 	do_unoptimize_kprobes();
 
 	/*
-	 * Step 2: Wait for quiesence period to ensure all running interrupts
-	 * are done. Because optprobe may modify multiple instructions
-	 * there is a chance that Nth instruction is interrupted. In that
-	 * case, running interrupt can return to 2nd-Nth byte of jump
-	 * instruction. This wait is for avoiding it.
+	 * Step 2: Wait for quiesence period to ensure all potentially
+	 * preempted tasks to have normally scheduled. Because optprobe
+	 * may modify multiple instructions, there is a chance that Nth
+	 * instruction is preempted. In that case, such tasks can return
+	 * to 2nd-Nth byte of jump instruction. This wait is for avoiding it.
+	 * Note that on non-preemptive kernel, this is transparently converted
+	 * to synchronoze_sched() to wait for all interrupts to have completed.
 	 */
-	synchronize_sched();
+	synchronize_rcu_tasks();
 
 	/* Step 3: Optimize kprobes after quiesence period */
 	do_optimize_kprobes();
@@ -1769,6 +1771,7 @@ unsigned long __weak arch_deref_entry_point(void *entry)
 	return (unsigned long)entry;
 }
 
+#if 0
 int register_jprobes(struct jprobe **jps, int num)
 {
 	int ret = 0, i;
@@ -1837,6 +1840,7 @@ void unregister_jprobes(struct jprobe **jps, int num)
 	}
 }
 EXPORT_SYMBOL_GPL(unregister_jprobes);
+#endif
 
 #ifdef CONFIG_KRETPROBES
 /*
diff --git a/kernel/kthread.c b/kernel/kthread.c
index 1c19edf82427..8af313081b0d 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -20,7 +20,6 @@
 #include <linux/freezer.h>
 #include <linux/ptrace.h>
 #include <linux/uaccess.h>
-#include <linux/cgroup.h>
 #include <trace/events/sched.h>
 
 static DEFINE_SPINLOCK(kthread_create_lock);
@@ -47,6 +46,9 @@ struct kthread {
 	void *data;
 	struct completion parked;
 	struct completion exited;
+#ifdef CONFIG_BLK_CGROUP
+	struct cgroup_subsys_state *blkcg_css;
+#endif
 };
 
 enum KTHREAD_BITS {
@@ -74,11 +76,17 @@ static inline struct kthread *to_kthread(struct task_struct *k)
 
 void free_kthread_struct(struct task_struct *k)
 {
+	struct kthread *kthread;
+
 	/*
 	 * Can be NULL if this kthread was created by kernel_thread()
 	 * or if kmalloc() in kthread() failed.
 	 */
-	kfree(to_kthread(k));
+	kthread = to_kthread(k);
+#ifdef CONFIG_BLK_CGROUP
+	WARN_ON_ONCE(kthread && kthread->blkcg_css);
+#endif
+	kfree(kthread);
 }
 
 /**
@@ -196,7 +204,7 @@ static int kthread(void *_create)
 	struct kthread *self;
 	int ret;
 
-	self = kmalloc(sizeof(*self), GFP_KERNEL);
+	self = kzalloc(sizeof(*self), GFP_KERNEL);
 	set_kthread_struct(self);
 
 	/* If user was SIGKILLed, I release the structure. */
@@ -212,7 +220,6 @@ static int kthread(void *_create)
 		do_exit(-ENOMEM);
 	}
 
-	self->flags = 0;
 	self->data = data;
 	init_completion(&self->exited);
 	init_completion(&self->parked);
@@ -798,15 +805,14 @@ EXPORT_SYMBOL_GPL(kthread_queue_work);
 /**
  * kthread_delayed_work_timer_fn - callback that queues the associated kthread
  *	delayed work when the timer expires.
- * @__data: pointer to the data associated with the timer
+ * @t: pointer to the expired timer
  *
  * The format of the function is defined by struct timer_list.
  * It should have been called from irqsafe timer with irq already off.
  */
-void kthread_delayed_work_timer_fn(unsigned long __data)
+void kthread_delayed_work_timer_fn(struct timer_list *t)
 {
-	struct kthread_delayed_work *dwork =
-		(struct kthread_delayed_work *)__data;
+	struct kthread_delayed_work *dwork = from_timer(dwork, t, timer);
 	struct kthread_work *work = &dwork->work;
 	struct kthread_worker *worker = work->worker;
 
@@ -837,8 +843,7 @@ void __kthread_queue_delayed_work(struct kthread_worker *worker,
 	struct timer_list *timer = &dwork->timer;
 	struct kthread_work *work = &dwork->work;
 
-	WARN_ON_ONCE(timer->function != kthread_delayed_work_timer_fn ||
-		     timer->data != (unsigned long)dwork);
+	WARN_ON_ONCE(timer->function != (TIMER_FUNC_TYPE)kthread_delayed_work_timer_fn);
 
 	/*
 	 * If @delay is 0, queue @dwork->work immediately.  This is for
@@ -1154,3 +1159,54 @@ void kthread_destroy_worker(struct kthread_worker *worker)
 	kfree(worker);
 }
 EXPORT_SYMBOL(kthread_destroy_worker);
+
+#ifdef CONFIG_BLK_CGROUP
+/**
+ * kthread_associate_blkcg - associate blkcg to current kthread
+ * @css: the cgroup info
+ *
+ * Current thread must be a kthread. The thread is running jobs on behalf of
+ * other threads. In some cases, we expect the jobs attach cgroup info of
+ * original threads instead of that of current thread. This function stores
+ * original thread's cgroup info in current kthread context for later
+ * retrieval.
+ */
+void kthread_associate_blkcg(struct cgroup_subsys_state *css)
+{
+	struct kthread *kthread;
+
+	if (!(current->flags & PF_KTHREAD))
+		return;
+	kthread = to_kthread(current);
+	if (!kthread)
+		return;
+
+	if (kthread->blkcg_css) {
+		css_put(kthread->blkcg_css);
+		kthread->blkcg_css = NULL;
+	}
+	if (css) {
+		css_get(css);
+		kthread->blkcg_css = css;
+	}
+}
+EXPORT_SYMBOL(kthread_associate_blkcg);
+
+/**
+ * kthread_blkcg - get associated blkcg css of current kthread
+ *
+ * Current thread must be a kthread.
+ */
+struct cgroup_subsys_state *kthread_blkcg(void)
+{
+	struct kthread *kthread;
+
+	if (current->flags & PF_KTHREAD) {
+		kthread = to_kthread(current);
+		if (kthread)
+			return kthread->blkcg_css;
+	}
+	return NULL;
+}
+EXPORT_SYMBOL(kthread_blkcg);
+#endif
diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
index b9628e43c78f..bf8c8fd72589 100644
--- a/kernel/livepatch/core.c
+++ b/kernel/livepatch/core.c
@@ -830,6 +830,41 @@ int klp_register_patch(struct klp_patch *patch)
 }
 EXPORT_SYMBOL_GPL(klp_register_patch);
 
+/*
+ * Remove parts of patches that touch a given kernel module. The list of
+ * patches processed might be limited. When limit is NULL, all patches
+ * will be handled.
+ */
+static void klp_cleanup_module_patches_limited(struct module *mod,
+					       struct klp_patch *limit)
+{
+	struct klp_patch *patch;
+	struct klp_object *obj;
+
+	list_for_each_entry(patch, &klp_patches, list) {
+		if (patch == limit)
+			break;
+
+		klp_for_each_object(patch, obj) {
+			if (!klp_is_module(obj) || strcmp(obj->name, mod->name))
+				continue;
+
+			/*
+			 * Only unpatch the module if the patch is enabled or
+			 * is in transition.
+			 */
+			if (patch->enabled || patch == klp_transition_patch) {
+				pr_notice("reverting patch '%s' on unloading module '%s'\n",
+					  patch->mod->name, obj->mod->name);
+				klp_unpatch_object(obj);
+			}
+
+			klp_free_object_loaded(obj);
+			break;
+		}
+	}
+}
+
 int klp_module_coming(struct module *mod)
 {
 	int ret;
@@ -894,7 +929,7 @@ err:
 	pr_warn("patch '%s' failed for module '%s', refusing to load module '%s'\n",
 		patch->mod->name, obj->mod->name, obj->mod->name);
 	mod->klp_alive = false;
-	klp_free_object_loaded(obj);
+	klp_cleanup_module_patches_limited(mod, patch);
 	mutex_unlock(&klp_mutex);
 
 	return ret;
@@ -902,9 +937,6 @@ err:
 
 void klp_module_going(struct module *mod)
 {
-	struct klp_patch *patch;
-	struct klp_object *obj;
-
 	if (WARN_ON(mod->state != MODULE_STATE_GOING &&
 		    mod->state != MODULE_STATE_COMING))
 		return;
@@ -917,25 +949,7 @@ void klp_module_going(struct module *mod)
 	 */
 	mod->klp_alive = false;
 
-	list_for_each_entry(patch, &klp_patches, list) {
-		klp_for_each_object(patch, obj) {
-			if (!klp_is_module(obj) || strcmp(obj->name, mod->name))
-				continue;
-
-			/*
-			 * Only unpatch the module if the patch is enabled or
-			 * is in transition.
-			 */
-			if (patch->enabled || patch == klp_transition_patch) {
-				pr_notice("reverting patch '%s' on unloading module '%s'\n",
-					  patch->mod->name, obj->mod->name);
-				klp_unpatch_object(obj);
-			}
-
-			klp_free_object_loaded(obj);
-			break;
-		}
-	}
+	klp_cleanup_module_patches_limited(mod, NULL);
 
 	mutex_unlock(&klp_mutex);
 }
diff --git a/kernel/livepatch/core.h b/kernel/livepatch/core.h
index c74f24c47837..a351601d7f76 100644
--- a/kernel/livepatch/core.h
+++ b/kernel/livepatch/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIVEPATCH_CORE_H
 #define _LIVEPATCH_CORE_H
 
diff --git a/kernel/livepatch/patch.h b/kernel/livepatch/patch.h
index 0db227170c36..e72d8250d04b 100644
--- a/kernel/livepatch/patch.h
+++ b/kernel/livepatch/patch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIVEPATCH_PATCH_H
 #define _LIVEPATCH_PATCH_H
 
diff --git a/kernel/livepatch/transition.h b/kernel/livepatch/transition.h
index ce09b326546c..0f6e27c481f9 100644
--- a/kernel/livepatch/transition.h
+++ b/kernel/livepatch/transition.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIVEPATCH_TRANSITION_H
 #define _LIVEPATCH_TRANSITION_H
 
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 760158d9d98d..392c7f23af76 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Any varying coverage in these files is non-deterministic
 # and is generally not a function of system call inputs.
 KCOV_INSTRUMENT		:= n
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 44c8d0d17170..db933d063bfc 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -76,6 +76,19 @@ module_param(lock_stat, int, 0644);
 #define lock_stat 0
 #endif
 
+#ifdef CONFIG_BOOTPARAM_LOCKDEP_CROSSRELEASE_FULLSTACK
+static int crossrelease_fullstack = 1;
+#else
+static int crossrelease_fullstack;
+#endif
+static int __init allow_crossrelease_fullstack(char *str)
+{
+	crossrelease_fullstack = 1;
+	return 0;
+}
+
+early_param("crossrelease_fullstack", allow_crossrelease_fullstack);
+
 /*
  * lockdep_lock: protects the lockdep graph, the hashes and the
  *               class/list/hash allocators.
@@ -1873,10 +1886,10 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev,
 	       struct held_lock *next, int distance, struct stack_trace *trace,
 	       int (*save)(struct stack_trace *trace))
 {
+	struct lock_list *uninitialized_var(target_entry);
 	struct lock_list *entry;
-	int ret;
 	struct lock_list this;
-	struct lock_list *uninitialized_var(target_entry);
+	int ret;
 
 	/*
 	 * Prove that the new <prev> -> <next> dependency would not
@@ -1890,8 +1903,17 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev,
 	this.class = hlock_class(next);
 	this.parent = NULL;
 	ret = check_noncircular(&this, hlock_class(prev), &target_entry);
-	if (unlikely(!ret))
+	if (unlikely(!ret)) {
+		if (!trace->entries) {
+			/*
+			 * If @save fails here, the printing might trigger
+			 * a WARN but because of the !nr_entries it should
+			 * not do bad things.
+			 */
+			save(trace);
+		}
 		return print_circular_bug(&this, target_entry, next, prev, trace);
+	}
 	else if (unlikely(ret < 0))
 		return print_bfs_bug(ret);
 
@@ -1938,7 +1960,7 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev,
 		return print_bfs_bug(ret);
 
 
-	if (save && !save(trace))
+	if (!trace->entries && !save(trace))
 		return 0;
 
 	/*
@@ -1958,20 +1980,6 @@ check_prev_add(struct task_struct *curr, struct held_lock *prev,
 	if (!ret)
 		return 0;
 
-	/*
-	 * Debugging printouts:
-	 */
-	if (verbose(hlock_class(prev)) || verbose(hlock_class(next))) {
-		graph_unlock();
-		printk("\n new dependency: ");
-		print_lock_name(hlock_class(prev));
-		printk(KERN_CONT " => ");
-		print_lock_name(hlock_class(next));
-		printk(KERN_CONT "\n");
-		dump_stack();
-		if (!graph_lock())
-			return 0;
-	}
 	return 2;
 }
 
@@ -1986,8 +1994,12 @@ check_prevs_add(struct task_struct *curr, struct held_lock *next)
 {
 	int depth = curr->lockdep_depth;
 	struct held_lock *hlock;
-	struct stack_trace trace;
-	int (*save)(struct stack_trace *trace) = save_trace;
+	struct stack_trace trace = {
+		.nr_entries = 0,
+		.max_entries = 0,
+		.entries = NULL,
+		.skip = 0,
+	};
 
 	/*
 	 * Debugging checks.
@@ -2018,18 +2030,11 @@ check_prevs_add(struct task_struct *curr, struct held_lock *next)
 			 */
 			if (hlock->read != 2 && hlock->check) {
 				int ret = check_prev_add(curr, hlock, next,
-							 distance, &trace, save);
+							 distance, &trace, save_trace);
 				if (!ret)
 					return 0;
 
 				/*
-				 * Stop saving stack_trace if save_trace() was
-				 * called at least once:
-				 */
-				if (save && ret == 2)
-					save = NULL;
-
-				/*
 				 * Stop after the first non-trylock entry,
 				 * as non-trylock entries have added their
 				 * own direct dependencies already, so this
@@ -4871,8 +4876,14 @@ static void add_xhlock(struct held_lock *hlock)
 	xhlock->trace.nr_entries = 0;
 	xhlock->trace.max_entries = MAX_XHLOCK_TRACE_ENTRIES;
 	xhlock->trace.entries = xhlock->trace_entries;
-	xhlock->trace.skip = 3;
-	save_stack_trace(&xhlock->trace);
+
+	if (crossrelease_fullstack) {
+		xhlock->trace.skip = 3;
+		save_stack_trace(&xhlock->trace);
+	} else {
+		xhlock->trace.nr_entries = 1;
+		xhlock->trace.entries[0] = hlock->acquire_ip;
+	}
 }
 
 static inline int same_context_xhlock(struct hist_lock *xhlock)
diff --git a/kernel/locking/lockdep_internals.h b/kernel/locking/lockdep_internals.h
index 1da4669d57a7..d459d624ba2a 100644
--- a/kernel/locking/lockdep_internals.h
+++ b/kernel/locking/lockdep_internals.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * kernel/lockdep_internals.h
  *
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
index 68d9e267ccd4..ad69bbc9bd28 100644
--- a/kernel/locking/lockdep_proc.c
+++ b/kernel/locking/lockdep_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kernel/lockdep_proc.c
  *
diff --git a/kernel/locking/mcs_spinlock.h b/kernel/locking/mcs_spinlock.h
index 6a385aabcce7..f046b7ce9dd6 100644
--- a/kernel/locking/mcs_spinlock.h
+++ b/kernel/locking/mcs_spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * MCS lock defines
  *
diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
index 4174417d5309..1edd3f45a4ec 100644
--- a/kernel/locking/mutex-debug.h
+++ b/kernel/locking/mutex-debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Mutexes: blocking mutual exclusion locks
  *
diff --git a/kernel/locking/mutex.h b/kernel/locking/mutex.h
index 6ebc1902f779..1c2287d3fa71 100644
--- a/kernel/locking/mutex.h
+++ b/kernel/locking/mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Mutexes: blocking mutual exclusion locks
  *
diff --git a/kernel/locking/osq_lock.c b/kernel/locking/osq_lock.c
index a74ee6abd039..6ef600aa0f47 100644
--- a/kernel/locking/osq_lock.c
+++ b/kernel/locking/osq_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/percpu.h>
 #include <linux/sched.h>
 #include <linux/osq_lock.h>
diff --git a/kernel/locking/qrwlock.c b/kernel/locking/qrwlock.c
index 2655f26ec882..c7471c3fb798 100644
--- a/kernel/locking/qrwlock.c
+++ b/kernel/locking/qrwlock.c
@@ -23,49 +23,11 @@
 #include <linux/spinlock.h>
 #include <asm/qrwlock.h>
 
-/*
- * This internal data structure is used for optimizing access to some of
- * the subfields within the atomic_t cnts.
- */
-struct __qrwlock {
-	union {
-		atomic_t cnts;
-		struct {
-#ifdef __LITTLE_ENDIAN
-			u8 wmode;	/* Writer mode   */
-			u8 rcnts[3];	/* Reader counts */
-#else
-			u8 rcnts[3];	/* Reader counts */
-			u8 wmode;	/* Writer mode   */
-#endif
-		};
-	};
-	arch_spinlock_t	lock;
-};
-
-/**
- * rspin_until_writer_unlock - inc reader count & spin until writer is gone
- * @lock  : Pointer to queue rwlock structure
- * @writer: Current queue rwlock writer status byte
- *
- * In interrupt context or at the head of the queue, the reader will just
- * increment the reader count & wait until the writer releases the lock.
- */
-static __always_inline void
-rspin_until_writer_unlock(struct qrwlock *lock, u32 cnts)
-{
-	while ((cnts & _QW_WMASK) == _QW_LOCKED) {
-		cpu_relax();
-		cnts = atomic_read_acquire(&lock->cnts);
-	}
-}
-
 /**
  * queued_read_lock_slowpath - acquire read lock of a queue rwlock
  * @lock: Pointer to queue rwlock structure
- * @cnts: Current qrwlock lock value
  */
-void queued_read_lock_slowpath(struct qrwlock *lock, u32 cnts)
+void queued_read_lock_slowpath(struct qrwlock *lock)
 {
 	/*
 	 * Readers come here when they cannot get the lock without waiting
@@ -73,13 +35,11 @@ void queued_read_lock_slowpath(struct qrwlock *lock, u32 cnts)
 	if (unlikely(in_interrupt())) {
 		/*
 		 * Readers in interrupt context will get the lock immediately
-		 * if the writer is just waiting (not holding the lock yet).
-		 * The rspin_until_writer_unlock() function returns immediately
-		 * in this case. Otherwise, they will spin (with ACQUIRE
-		 * semantics) until the lock is available without waiting in
-		 * the queue.
+		 * if the writer is just waiting (not holding the lock yet),
+		 * so spin with ACQUIRE semantics until the lock is available
+		 * without waiting in the queue.
 		 */
-		rspin_until_writer_unlock(lock, cnts);
+		atomic_cond_read_acquire(&lock->cnts, !(VAL & _QW_LOCKED));
 		return;
 	}
 	atomic_sub(_QR_BIAS, &lock->cnts);
@@ -88,14 +48,14 @@ void queued_read_lock_slowpath(struct qrwlock *lock, u32 cnts)
 	 * Put the reader into the wait queue
 	 */
 	arch_spin_lock(&lock->wait_lock);
+	atomic_add(_QR_BIAS, &lock->cnts);
 
 	/*
 	 * The ACQUIRE semantics of the following spinning code ensure
 	 * that accesses can't leak upwards out of our subsequent critical
 	 * section in the case that the lock is currently held for write.
 	 */
-	cnts = atomic_fetch_add_acquire(_QR_BIAS, &lock->cnts);
-	rspin_until_writer_unlock(lock, cnts);
+	atomic_cond_read_acquire(&lock->cnts, !(VAL & _QW_LOCKED));
 
 	/*
 	 * Signal the next one in queue to become queue head
@@ -110,8 +70,6 @@ EXPORT_SYMBOL(queued_read_lock_slowpath);
  */
 void queued_write_lock_slowpath(struct qrwlock *lock)
 {
-	u32 cnts;
-
 	/* Put the writer into the wait queue */
 	arch_spin_lock(&lock->wait_lock);
 
@@ -120,30 +78,14 @@ void queued_write_lock_slowpath(struct qrwlock *lock)
 	    (atomic_cmpxchg_acquire(&lock->cnts, 0, _QW_LOCKED) == 0))
 		goto unlock;
 
-	/*
-	 * Set the waiting flag to notify readers that a writer is pending,
-	 * or wait for a previous writer to go away.
-	 */
-	for (;;) {
-		struct __qrwlock *l = (struct __qrwlock *)lock;
-
-		if (!READ_ONCE(l->wmode) &&
-		   (cmpxchg_relaxed(&l->wmode, 0, _QW_WAITING) == 0))
-			break;
+	/* Set the waiting flag to notify readers that a writer is pending */
+	atomic_add(_QW_WAITING, &lock->cnts);
 
-		cpu_relax();
-	}
-
-	/* When no more readers, set the locked flag */
-	for (;;) {
-		cnts = atomic_read(&lock->cnts);
-		if ((cnts == _QW_WAITING) &&
-		    (atomic_cmpxchg_acquire(&lock->cnts, _QW_WAITING,
-					    _QW_LOCKED) == _QW_WAITING))
-			break;
-
-		cpu_relax();
-	}
+	/* When no more readers or writers, set the locked flag */
+	do {
+		atomic_cond_read_acquire(&lock->cnts, VAL == _QW_WAITING);
+	} while (atomic_cmpxchg_relaxed(&lock->cnts, _QW_WAITING,
+					_QW_LOCKED) != _QW_WAITING);
 unlock:
 	arch_spin_unlock(&lock->wait_lock);
 }
diff --git a/kernel/locking/qspinlock_paravirt.h b/kernel/locking/qspinlock_paravirt.h
index 43555681c40b..6ee477765e6c 100644
--- a/kernel/locking/qspinlock_paravirt.h
+++ b/kernel/locking/qspinlock_paravirt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GEN_PV_LOCK_SLOWPATH
 #error "do not include this file"
 #endif
@@ -60,21 +61,50 @@ struct pv_node {
 #include "qspinlock_stat.h"
 
 /*
+ * Hybrid PV queued/unfair lock
+ *
  * By replacing the regular queued_spin_trylock() with the function below,
  * it will be called once when a lock waiter enter the PV slowpath before
- * being queued. By allowing one lock stealing attempt here when the pending
- * bit is off, it helps to reduce the performance impact of lock waiter
- * preemption without the drawback of lock starvation.
+ * being queued.
+ *
+ * The pending bit is set by the queue head vCPU of the MCS wait queue in
+ * pv_wait_head_or_lock() to signal that it is ready to spin on the lock.
+ * When that bit becomes visible to the incoming waiters, no lock stealing
+ * is allowed. The function will return immediately to make the waiters
+ * enter the MCS wait queue. So lock starvation shouldn't happen as long
+ * as the queued mode vCPUs are actively running to set the pending bit
+ * and hence disabling lock stealing.
+ *
+ * When the pending bit isn't set, the lock waiters will stay in the unfair
+ * mode spinning on the lock unless the MCS wait queue is empty. In this
+ * case, the lock waiters will enter the queued mode slowpath trying to
+ * become the queue head and set the pending bit.
+ *
+ * This hybrid PV queued/unfair lock combines the best attributes of a
+ * queued lock (no lock starvation) and an unfair lock (good performance
+ * on not heavily contended locks).
  */
-#define queued_spin_trylock(l)	pv_queued_spin_steal_lock(l)
-static inline bool pv_queued_spin_steal_lock(struct qspinlock *lock)
+#define queued_spin_trylock(l)	pv_hybrid_queued_unfair_trylock(l)
+static inline bool pv_hybrid_queued_unfair_trylock(struct qspinlock *lock)
 {
 	struct __qspinlock *l = (void *)lock;
 
-	if (!(atomic_read(&lock->val) & _Q_LOCKED_PENDING_MASK) &&
-	    (cmpxchg_acquire(&l->locked, 0, _Q_LOCKED_VAL) == 0)) {
-		qstat_inc(qstat_pv_lock_stealing, true);
-		return true;
+	/*
+	 * Stay in unfair lock mode as long as queued mode waiters are
+	 * present in the MCS wait queue but the pending bit isn't set.
+	 */
+	for (;;) {
+		int val = atomic_read(&lock->val);
+
+		if (!(val & _Q_LOCKED_PENDING_MASK) &&
+		   (cmpxchg_acquire(&l->locked, 0, _Q_LOCKED_VAL) == 0)) {
+			qstat_inc(qstat_pv_lock_stealing, true);
+			return true;
+		}
+		if (!(val & _Q_TAIL_MASK) || (val & _Q_PENDING_MASK))
+			break;
+
+		cpu_relax();
 	}
 
 	return false;
diff --git a/kernel/locking/rtmutex-debug.c b/kernel/locking/rtmutex-debug.c
index f4a74e78d467..fd4fe1f5b458 100644
--- a/kernel/locking/rtmutex-debug.c
+++ b/kernel/locking/rtmutex-debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * RT-Mutexes: blocking mutual exclusion locks with PI support
  *
diff --git a/kernel/locking/rtmutex-debug.h b/kernel/locking/rtmutex-debug.h
index 5078c6ddf4a5..fc549713bba3 100644
--- a/kernel/locking/rtmutex-debug.h
+++ b/kernel/locking/rtmutex-debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RT-Mutexes: blocking mutual exclusion locks with PI support
  *
diff --git a/kernel/locking/rtmutex.h b/kernel/locking/rtmutex.h
index 5c253caffe91..732f96abf462 100644
--- a/kernel/locking/rtmutex.h
+++ b/kernel/locking/rtmutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RT-Mutexes: blocking mutual exclusion locks with PI support
  *
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index 7453be0485a5..124e98ca0b17 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * RT Mutexes: blocking mutual exclusion locks with PI support
  *
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c
index 0848634c5512..a7ffb2a96ede 100644
--- a/kernel/locking/rwsem-spinlock.c
+++ b/kernel/locking/rwsem-spinlock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* rwsem-spinlock.c: R/W semaphores: contention handling functions for
  * generic spinlock implementation
  *
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
index 02f660666ab8..e795908f3607 100644
--- a/kernel/locking/rwsem-xadd.c
+++ b/kernel/locking/rwsem-xadd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* rwsem.c: R/W semaphores: contention handling functions
  *
  * Written by David Howells (dhowells@redhat.com).
@@ -613,6 +614,33 @@ struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
 	DEFINE_WAKE_Q(wake_q);
 
 	/*
+	* __rwsem_down_write_failed_common(sem)
+	*   rwsem_optimistic_spin(sem)
+	*     osq_unlock(sem->osq)
+	*   ...
+	*   atomic_long_add_return(&sem->count)
+	*
+	*      - VS -
+	*
+	*              __up_write()
+	*                if (atomic_long_sub_return_release(&sem->count) < 0)
+	*                  rwsem_wake(sem)
+	*                    osq_is_locked(&sem->osq)
+	*
+	* And __up_write() must observe !osq_is_locked() when it observes the
+	* atomic_long_add_return() in order to not miss a wakeup.
+	*
+	* This boils down to:
+	*
+	* [S.rel] X = 1                [RmW] r0 = (Y += 0)
+	*         MB                         RMB
+	* [RmW]   Y += 1               [L]   r1 = X
+	*
+	* exists (r0=1 /\ r1=0)
+	*/
+	smp_rmb();
+
+	/*
 	 * If a spinner is present, it is not necessary to do the wakeup.
 	 * Try to do wakeup only if the trylock succeeds to minimize
 	 * spinlock contention which may introduce too much delay in the
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
index 4d48b1c4870d..f549c552dbf1 100644
--- a/kernel/locking/rwsem.c
+++ b/kernel/locking/rwsem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* kernel/rwsem.c: R/W semaphores, public implementation
  *
  * Written by David Howells (dhowells@redhat.com).
@@ -28,6 +29,22 @@ void __sched down_read(struct rw_semaphore *sem)
 
 EXPORT_SYMBOL(down_read);
 
+int __sched down_read_killable(struct rw_semaphore *sem)
+{
+	might_sleep();
+	rwsem_acquire_read(&sem->dep_map, 0, 0, _RET_IP_);
+
+	if (LOCK_CONTENDED_RETURN(sem, __down_read_trylock, __down_read_killable)) {
+		rwsem_release(&sem->dep_map, 1, _RET_IP_);
+		return -EINTR;
+	}
+
+	rwsem_set_reader_owned(sem);
+	return 0;
+}
+
+EXPORT_SYMBOL(down_read_killable);
+
 /*
  * trylock for reading -- returns 1 if successful, 0 if contention
  */
diff --git a/kernel/locking/rwsem.h b/kernel/locking/rwsem.h
index a699f4048ba1..a883b8f1fdc6 100644
--- a/kernel/locking/rwsem.h
+++ b/kernel/locking/rwsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * The owner field of the rw_semaphore structure will be set to
  * RWSEM_READ_OWNED when a reader grabs the lock. A writer will clear
diff --git a/kernel/locking/spinlock.c b/kernel/locking/spinlock.c
index 4b082b5cac9e..1fd1a7543cdd 100644
--- a/kernel/locking/spinlock.c
+++ b/kernel/locking/spinlock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (2004) Linus Torvalds
  *
@@ -29,11 +30,10 @@
 #if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
 /*
  * The __lock_function inlines are taken from
- * include/linux/spinlock_api_smp.h
+ * spinlock : include/linux/spinlock_api_smp.h
+ * rwlock   : include/linux/rwlock_api_smp.h
  */
 #else
-#define raw_read_can_lock(l)	read_can_lock(l)
-#define raw_write_can_lock(l)	write_can_lock(l)
 
 /*
  * Some architectures can relax in favour of the CPU owning the lock.
@@ -68,7 +68,7 @@ void __lockfunc __raw_##op##_lock(locktype##_t *lock)			\
 									\
 		if (!(lock)->break_lock)				\
 			(lock)->break_lock = 1;				\
-		while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
+		while ((lock)->break_lock)				\
 			arch_##op##_relax(&lock->raw_lock);		\
 	}								\
 	(lock)->break_lock = 0;						\
@@ -88,7 +88,7 @@ unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock)	\
 									\
 		if (!(lock)->break_lock)				\
 			(lock)->break_lock = 1;				\
-		while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
+		while ((lock)->break_lock)				\
 			arch_##op##_relax(&lock->raw_lock);		\
 	}								\
 	(lock)->break_lock = 0;						\
diff --git a/kernel/locking/test-ww_mutex.c b/kernel/locking/test-ww_mutex.c
index 39f56c870051..0e4cd64ad2c0 100644
--- a/kernel/locking/test-ww_mutex.c
+++ b/kernel/locking/test-ww_mutex.c
@@ -362,7 +362,7 @@ static int *get_random_order(int count)
 	int *order;
 	int n, r, tmp;
 
-	order = kmalloc_array(count, sizeof(*order), GFP_TEMPORARY);
+	order = kmalloc_array(count, sizeof(*order), GFP_KERNEL);
 	if (!order)
 		return order;
 
diff --git a/kernel/memremap.c b/kernel/memremap.c
index 6bcbfbf1a8fd..403ab9cdb949 100644
--- a/kernel/memremap.c
+++ b/kernel/memremap.c
@@ -350,7 +350,7 @@ void *devm_memremap_pages(struct device *dev, struct resource *res,
 	pgprot_t pgprot = PAGE_KERNEL;
 	struct dev_pagemap *pgmap;
 	struct page_map *page_map;
-	int error, nid, is_ram;
+	int error, nid, is_ram, i = 0;
 
 	align_start = res->start & ~(SECTION_SIZE - 1);
 	align_size = ALIGN(res->start + resource_size(res), SECTION_SIZE)
@@ -448,6 +448,8 @@ void *devm_memremap_pages(struct device *dev, struct resource *res,
 		list_del(&page->lru);
 		page->pgmap = pgmap;
 		percpu_ref_get(ref);
+		if (!(++i % 1024))
+			cond_resched();
 	}
 	devres_add(dev, page_map);
 	return __va(res->start);
diff --git a/kernel/module.c b/kernel/module.c
index 40f983cbea81..32c2cdaccd93 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -278,6 +278,16 @@ static bool sig_enforce = IS_ENABLED(CONFIG_MODULE_SIG_FORCE);
 module_param(sig_enforce, bool_enable_only, 0644);
 #endif /* !CONFIG_MODULE_SIG_FORCE */
 
+/*
+ * Export sig_enforce kernel cmdline parameter to allow other subsystems rely
+ * on that instead of directly to CONFIG_MODULE_SIG_FORCE config.
+ */
+bool is_module_sig_enforced(void)
+{
+	return sig_enforce;
+}
+EXPORT_SYMBOL(is_module_sig_enforced);
+
 /* Block module loading/unloading? */
 int modules_disabled = 0;
 core_param(nomodule, modules_disabled, bint, 0);
@@ -1516,7 +1526,7 @@ static void add_sect_attrs(struct module *mod, const struct load_info *info)
 		sattr->mattr.show = module_sect_show;
 		sattr->mattr.store = NULL;
 		sattr->mattr.attr.name = sattr->name;
-		sattr->mattr.attr.mode = S_IRUGO;
+		sattr->mattr.attr.mode = S_IRUSR;
 		*(gattr++) = &(sattr++)->mattr.attr;
 	}
 	*gattr = NULL;
@@ -2707,21 +2717,21 @@ static void add_kallsyms(struct module *mod, const struct load_info *info)
 }
 #endif /* CONFIG_KALLSYMS */
 
-static void dynamic_debug_setup(struct _ddebug *debug, unsigned int num)
+static void dynamic_debug_setup(struct module *mod, struct _ddebug *debug, unsigned int num)
 {
 	if (!debug)
 		return;
 #ifdef CONFIG_DYNAMIC_DEBUG
-	if (ddebug_add_module(debug, num, debug->modname))
+	if (ddebug_add_module(debug, num, mod->name))
 		pr_err("dynamic debug error adding module: %s\n",
 			debug->modname);
 #endif
 }
 
-static void dynamic_debug_remove(struct _ddebug *debug)
+static void dynamic_debug_remove(struct module *mod, struct _ddebug *debug)
 {
 	if (debug)
-		ddebug_remove_module(debug->modname);
+		ddebug_remove_module(mod->name);
 }
 
 void * __weak module_alloc(unsigned long size)
@@ -3715,7 +3725,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
 		goto free_arch_cleanup;
 	}
 
-	dynamic_debug_setup(info->debug, info->num_debug);
+	dynamic_debug_setup(mod, info->debug, info->num_debug);
 
 	/* Ftrace init must be called in the MODULE_STATE_UNFORMED state */
 	ftrace_module_init(mod);
@@ -3779,7 +3789,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
 	module_disable_nx(mod);
 
  ddebug_cleanup:
-	dynamic_debug_remove(info->debug);
+	dynamic_debug_remove(mod, info->debug);
 	synchronize_sched();
 	kfree(mod->args);
  free_arch_cleanup:
@@ -4147,6 +4157,7 @@ static int m_show(struct seq_file *m, void *p)
 {
 	struct module *mod = list_entry(p, struct module, list);
 	char buf[MODULE_FLAGS_BUF_SIZE];
+	unsigned long value;
 
 	/* We always ignore unformed modules. */
 	if (mod->state == MODULE_STATE_UNFORMED)
@@ -4162,7 +4173,8 @@ static int m_show(struct seq_file *m, void *p)
 		   mod->state == MODULE_STATE_COMING ? "Loading" :
 		   "Live");
 	/* Used by oprofile and other similar tools. */
-	seq_printf(m, " 0x%pK", mod->core_layout.base);
+	value = m->private ? 0 : (unsigned long)mod->core_layout.base;
+	seq_printf(m, " 0x" KALLSYM_FMT, value);
 
 	/* Taints info */
 	if (mod->taints)
@@ -4184,9 +4196,23 @@ static const struct seq_operations modules_op = {
 	.show	= m_show
 };
 
+/*
+ * This also sets the "private" pointer to non-NULL if the
+ * kernel pointers should be hidden (so you can just test
+ * "m->private" to see if you should keep the values private).
+ *
+ * We use the same logic as for /proc/kallsyms.
+ */
 static int modules_open(struct inode *inode, struct file *file)
 {
-	return seq_open(file, &modules_op);
+	int err = seq_open(file, &modules_op);
+
+	if (!err) {
+		struct seq_file *m = file->private_data;
+		m->private = kallsyms_show_value() ? NULL : (void *)8ul;
+	}
+
+	return 0;
 }
 
 static const struct file_operations proc_modules_operations = {
diff --git a/kernel/padata.c b/kernel/padata.c
index 868f947166d7..f262c9a4e70a 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -131,6 +131,7 @@ int padata_do_parallel(struct padata_instance *pinst,
 	padata->cb_cpu = cb_cpu;
 
 	target_cpu = padata_cpu_hash(pd);
+	padata->cpu = target_cpu;
 	queue = per_cpu_ptr(pd->pqueue, target_cpu);
 
 	spin_lock(&queue->parallel.lock);
@@ -275,11 +276,51 @@ static void padata_reorder(struct parallel_data *pd)
 	return;
 }
 
+static void invoke_padata_reorder(struct work_struct *work)
+{
+	struct padata_parallel_queue *pqueue;
+	struct parallel_data *pd;
+
+	local_bh_disable();
+	pqueue = container_of(work, struct padata_parallel_queue, reorder_work);
+	pd = pqueue->pd;
+	padata_reorder(pd);
+	local_bh_enable();
+}
+
 static void padata_reorder_timer(unsigned long arg)
 {
 	struct parallel_data *pd = (struct parallel_data *)arg;
+	unsigned int weight;
+	int target_cpu, cpu;
 
-	padata_reorder(pd);
+	cpu = get_cpu();
+
+	/* We don't lock pd here to not interfere with parallel processing
+	 * padata_reorder() calls on other CPUs. We just need any CPU out of
+	 * the cpumask.pcpu set. It would be nice if it's the right one but
+	 * it doesn't matter if we're off to the next one by using an outdated
+	 * pd->processed value.
+	 */
+	weight = cpumask_weight(pd->cpumask.pcpu);
+	target_cpu = padata_index_to_cpu(pd, pd->processed % weight);
+
+	/* ensure to call the reorder callback on the correct CPU */
+	if (cpu != target_cpu) {
+		struct padata_parallel_queue *pqueue;
+		struct padata_instance *pinst;
+
+		/* The timer function is serialized wrt itself -- no locking
+		 * needed.
+		 */
+		pinst = pd->pinst;
+		pqueue = per_cpu_ptr(pd->pqueue, target_cpu);
+		queue_work_on(target_cpu, pinst->wq, &pqueue->reorder_work);
+	} else {
+		padata_reorder(pd);
+	}
+
+	put_cpu();
 }
 
 static void padata_serial_worker(struct work_struct *serial_work)
@@ -323,10 +364,21 @@ void padata_do_serial(struct padata_priv *padata)
 	int cpu;
 	struct padata_parallel_queue *pqueue;
 	struct parallel_data *pd;
+	int reorder_via_wq = 0;
 
 	pd = padata->pd;
 
 	cpu = get_cpu();
+
+	/* We need to run on the same CPU padata_do_parallel(.., padata, ..)
+	 * was called on -- or, at least, enqueue the padata object into the
+	 * correct per-cpu queue.
+	 */
+	if (cpu != padata->cpu) {
+		reorder_via_wq = 1;
+		cpu = padata->cpu;
+	}
+
 	pqueue = per_cpu_ptr(pd->pqueue, cpu);
 
 	spin_lock(&pqueue->reorder.lock);
@@ -336,7 +388,13 @@ void padata_do_serial(struct padata_priv *padata)
 
 	put_cpu();
 
-	padata_reorder(pd);
+	/* If we're running on the wrong CPU, call padata_reorder() via a
+	 * kernel worker.
+	 */
+	if (reorder_via_wq)
+		queue_work_on(cpu, pd->pinst->wq, &pqueue->reorder_work);
+	else
+		padata_reorder(pd);
 }
 EXPORT_SYMBOL(padata_do_serial);
 
@@ -384,8 +442,14 @@ static void padata_init_pqueues(struct parallel_data *pd)
 	struct padata_parallel_queue *pqueue;
 
 	cpu_index = 0;
-	for_each_cpu(cpu, pd->cpumask.pcpu) {
+	for_each_possible_cpu(cpu) {
 		pqueue = per_cpu_ptr(pd->pqueue, cpu);
+
+		if (!cpumask_test_cpu(cpu, pd->cpumask.pcpu)) {
+			pqueue->cpu_index = -1;
+			continue;
+		}
+
 		pqueue->pd = pd;
 		pqueue->cpu_index = cpu_index;
 		cpu_index++;
@@ -393,6 +457,7 @@ static void padata_init_pqueues(struct parallel_data *pd)
 		__padata_list_init(&pqueue->reorder);
 		__padata_list_init(&pqueue->parallel);
 		INIT_WORK(&pqueue->work, padata_parallel_worker);
+		INIT_WORK(&pqueue->reorder_work, invoke_padata_reorder);
 		atomic_set(&pqueue->num_obj, 0);
 	}
 }
diff --git a/kernel/params.c b/kernel/params.c
index 60b2d8101355..cc9108c2a1fd 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -224,7 +224,7 @@ char *parse_args(const char *doing,
 	}								\
 	int param_get_##name(char *buffer, const struct kernel_param *kp) \
 	{								\
-		return scnprintf(buffer, PAGE_SIZE, format,		\
+		return scnprintf(buffer, PAGE_SIZE, format "\n",	\
 				*((type *)kp->arg));			\
 	}								\
 	const struct kernel_param_ops param_ops_##name = {			\
@@ -236,14 +236,14 @@ char *parse_args(const char *doing,
 	EXPORT_SYMBOL(param_ops_##name)
 
 
-STANDARD_PARAM_DEF(byte, unsigned char, "%hhu", kstrtou8);
-STANDARD_PARAM_DEF(short, short, "%hi", kstrtos16);
-STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", kstrtou16);
-STANDARD_PARAM_DEF(int, int, "%i", kstrtoint);
-STANDARD_PARAM_DEF(uint, unsigned int, "%u", kstrtouint);
-STANDARD_PARAM_DEF(long, long, "%li", kstrtol);
-STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", kstrtoul);
-STANDARD_PARAM_DEF(ullong, unsigned long long, "%llu", kstrtoull);
+STANDARD_PARAM_DEF(byte,	unsigned char,		"%hhu", kstrtou8);
+STANDARD_PARAM_DEF(short,	short,			"%hi",  kstrtos16);
+STANDARD_PARAM_DEF(ushort,	unsigned short,		"%hu",  kstrtou16);
+STANDARD_PARAM_DEF(int,		int,			"%i",   kstrtoint);
+STANDARD_PARAM_DEF(uint,	unsigned int,		"%u",   kstrtouint);
+STANDARD_PARAM_DEF(long,	long,			"%li",  kstrtol);
+STANDARD_PARAM_DEF(ulong,	unsigned long,		"%lu",  kstrtoul);
+STANDARD_PARAM_DEF(ullong,	unsigned long long,	"%llu", kstrtoull);
 
 int param_set_charp(const char *val, const struct kernel_param *kp)
 {
@@ -270,7 +270,7 @@ EXPORT_SYMBOL(param_set_charp);
 
 int param_get_charp(char *buffer, const struct kernel_param *kp)
 {
-	return scnprintf(buffer, PAGE_SIZE, "%s", *((char **)kp->arg));
+	return scnprintf(buffer, PAGE_SIZE, "%s\n", *((char **)kp->arg));
 }
 EXPORT_SYMBOL(param_get_charp);
 
@@ -301,7 +301,7 @@ EXPORT_SYMBOL(param_set_bool);
 int param_get_bool(char *buffer, const struct kernel_param *kp)
 {
 	/* Y and N chosen as being relatively non-coder friendly */
-	return sprintf(buffer, "%c", *(bool *)kp->arg ? 'Y' : 'N');
+	return sprintf(buffer, "%c\n", *(bool *)kp->arg ? 'Y' : 'N');
 }
 EXPORT_SYMBOL(param_get_bool);
 
@@ -360,7 +360,7 @@ EXPORT_SYMBOL(param_set_invbool);
 
 int param_get_invbool(char *buffer, const struct kernel_param *kp)
 {
-	return sprintf(buffer, "%c", (*(bool *)kp->arg) ? 'N' : 'Y');
+	return sprintf(buffer, "%c\n", (*(bool *)kp->arg) ? 'N' : 'Y');
 }
 EXPORT_SYMBOL(param_get_invbool);
 
@@ -460,8 +460,9 @@ static int param_array_get(char *buffer, const struct kernel_param *kp)
 	struct kernel_param p = *kp;
 
 	for (i = off = 0; i < (arr->num ? *arr->num : arr->max); i++) {
+		/* Replace \n with comma */
 		if (i)
-			buffer[off++] = ',';
+			buffer[off - 1] = ',';
 		p.arg = arr->elem + arr->elemsize * i;
 		check_kparam_locked(p.mod);
 		ret = arr->ops->get(buffer + off, &p);
@@ -507,7 +508,7 @@ EXPORT_SYMBOL(param_set_copystring);
 int param_get_string(char *buffer, const struct kernel_param *kp)
 {
 	const struct kparam_string *kps = kp->str;
-	return strlcpy(buffer, kps->string, kps->maxlen);
+	return scnprintf(buffer, PAGE_SIZE, "%s\n", kps->string);
 }
 EXPORT_SYMBOL(param_get_string);
 
@@ -549,10 +550,6 @@ static ssize_t param_attr_show(struct module_attribute *mattr,
 	kernel_param_lock(mk->mod);
 	count = attribute->param->ops->get(buf, attribute->param);
 	kernel_param_unlock(mk->mod);
-	if (count > 0) {
-		strcat(buf, "\n");
-		++count;
-	}
 	return count;
 }
 
@@ -600,7 +597,7 @@ EXPORT_SYMBOL(kernel_param_unlock);
 /*
  * add_sysfs_param - add a parameter to sysfs
  * @mk: struct module_kobject
- * @kparam: the actual parameter definition to add to sysfs
+ * @kp: the actual parameter definition to add to sysfs
  * @name: name of parameter
  *
  * Create a kobject if for a (per-module) parameter if mp NULL, and
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index e8517b63eb37..e880ca22c5a5 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -259,20 +259,6 @@ config APM_EMULATION
 	  anything, try disabling/enabling this option (or disabling/enabling
 	  APM in your BIOS).
 
-config PM_OPP
-	bool
-	select SRCU
-	---help---
-	  SOCs have a standard set of tuples consisting of frequency and
-	  voltage pairs that the device will support per voltage domain. This
-	  is called Operating Performance Point or OPP. The actual definitions
-	  of OPP varies over silicon within the same family of devices.
-
-	  OPP layer organizes the data internally using device pointers
-	  representing individual voltage domains and provides SOC
-	  implementations a ready to use framework to manage OPPs.
-	  For more information, read <file:Documentation/power/opp.txt>
-
 config PM_CLK
 	def_bool y
 	depends on PM && HAVE_CLK
diff --git a/kernel/power/Makefile b/kernel/power/Makefile
index eb4f717705ba..a3f79f0eef36 100644
--- a/kernel/power/Makefile
+++ b/kernel/power/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 ccflags-$(CONFIG_PM_DEBUG)	:= -DDEBUG
 
diff --git a/kernel/power/autosleep.c b/kernel/power/autosleep.c
index 9012ecf7b814..41e83a779e19 100644
--- a/kernel/power/autosleep.c
+++ b/kernel/power/autosleep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kernel/power/autosleep.c
  *
diff --git a/kernel/power/console.c b/kernel/power/console.c
index 0e781798b0b3..fcdf0e14a47d 100644
--- a/kernel/power/console.c
+++ b/kernel/power/console.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions for saving/restoring console.
  *
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 1d2d761e3c25..f29cd178df90 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/suspend.h>
 #include <linux/suspend_ioctls.h>
 #include <linux/utsname.h>
diff --git a/kernel/power/process.c b/kernel/power/process.c
index 50f25cb370c6..7381d49a44db 100644
--- a/kernel/power/process.c
+++ b/kernel/power/process.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/power/process.c - Functions for starting/stopping processes on 
  *                           suspend transitions.
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 97b0df71303e..9d7503910ce2 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -701,8 +701,8 @@ static int __init pm_qos_power_init(void)
 	for (i = PM_QOS_CPU_DMA_LATENCY; i < PM_QOS_NUM_CLASSES; i++) {
 		ret = register_pm_qos_misc(pm_qos_array[i], d);
 		if (ret < 0) {
-			printk(KERN_ERR "pm_qos_param: %s setup failed\n",
-			       pm_qos_array[i]->name);
+			pr_err("%s: %s setup failed\n",
+			       __func__, pm_qos_array[i]->name);
 			return ret;
 		}
 	}
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 0972a8e09d08..a917a301e201 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -10,6 +10,8 @@
  *
  */
 
+#define pr_fmt(fmt) "PM: " fmt
+
 #include <linux/version.h>
 #include <linux/module.h>
 #include <linux/mm.h>
@@ -967,7 +969,7 @@ void __init __register_nosave_region(unsigned long start_pfn,
 	region->end_pfn = end_pfn;
 	list_add_tail(&region->list, &nosave_regions);
  Report:
-	printk(KERN_INFO "PM: Registered nosave memory: [mem %#010llx-%#010llx]\n",
+	pr_info("Registered nosave memory: [mem %#010llx-%#010llx]\n",
 		(unsigned long long) start_pfn << PAGE_SHIFT,
 		((unsigned long long) end_pfn << PAGE_SHIFT) - 1);
 }
@@ -1039,7 +1041,7 @@ static void mark_nosave_pages(struct memory_bitmap *bm)
 	list_for_each_entry(region, &nosave_regions, list) {
 		unsigned long pfn;
 
-		pr_debug("PM: Marking nosave pages: [mem %#010llx-%#010llx]\n",
+		pr_debug("Marking nosave pages: [mem %#010llx-%#010llx]\n",
 			 (unsigned long long) region->start_pfn << PAGE_SHIFT,
 			 ((unsigned long long) region->end_pfn << PAGE_SHIFT)
 				- 1);
@@ -1095,7 +1097,7 @@ int create_basic_memory_bitmaps(void)
 	free_pages_map = bm2;
 	mark_nosave_pages(forbidden_pages_map);
 
-	pr_debug("PM: Basic memory bitmaps created\n");
+	pr_debug("Basic memory bitmaps created\n");
 
 	return 0;
 
@@ -1131,7 +1133,7 @@ void free_basic_memory_bitmaps(void)
 	memory_bm_free(bm2, PG_UNSAFE_CLEAR);
 	kfree(bm2);
 
-	pr_debug("PM: Basic memory bitmaps freed\n");
+	pr_debug("Basic memory bitmaps freed\n");
 }
 
 void clear_free_pages(void)
@@ -1152,7 +1154,7 @@ void clear_free_pages(void)
 		pfn = memory_bm_next_pfn(bm);
 	}
 	memory_bm_position_reset(bm);
-	pr_info("PM: free pages cleared after restore\n");
+	pr_info("free pages cleared after restore\n");
 #endif /* PAGE_POISONING_ZERO */
 }
 
@@ -1690,7 +1692,7 @@ int hibernate_preallocate_memory(void)
 	ktime_t start, stop;
 	int error;
 
-	printk(KERN_INFO "PM: Preallocating image memory... ");
+	pr_info("Preallocating image memory... ");
 	start = ktime_get();
 
 	error = memory_bm_create(&orig_bm, GFP_IMAGE, PG_ANY);
@@ -1821,13 +1823,13 @@ int hibernate_preallocate_memory(void)
 
  out:
 	stop = ktime_get();
-	printk(KERN_CONT "done (allocated %lu pages)\n", pages);
+	pr_cont("done (allocated %lu pages)\n", pages);
 	swsusp_show_speed(start, stop, pages, "Allocated");
 
 	return 0;
 
  err_out:
-	printk(KERN_CONT "\n");
+	pr_cont("\n");
 	swsusp_free();
 	return -ENOMEM;
 }
@@ -1867,8 +1869,8 @@ static int enough_free_mem(unsigned int nr_pages, unsigned int nr_highmem)
 			free += zone_page_state(zone, NR_FREE_PAGES);
 
 	nr_pages += count_pages_for_highmem(nr_highmem);
-	pr_debug("PM: Normal pages needed: %u + %u, available pages: %u\n",
-		nr_pages, PAGES_FOR_IO, free);
+	pr_debug("Normal pages needed: %u + %u, available pages: %u\n",
+		 nr_pages, PAGES_FOR_IO, free);
 
 	return free > nr_pages + PAGES_FOR_IO;
 }
@@ -1961,20 +1963,20 @@ asmlinkage __visible int swsusp_save(void)
 {
 	unsigned int nr_pages, nr_highmem;
 
-	printk(KERN_INFO "PM: Creating hibernation image:\n");
+	pr_info("Creating hibernation image:\n");
 
 	drain_local_pages(NULL);
 	nr_pages = count_data_pages();
 	nr_highmem = count_highmem_pages();
-	printk(KERN_INFO "PM: Need to copy %u pages\n", nr_pages + nr_highmem);
+	pr_info("Need to copy %u pages\n", nr_pages + nr_highmem);
 
 	if (!enough_free_mem(nr_pages, nr_highmem)) {
-		printk(KERN_ERR "PM: Not enough free memory\n");
+		pr_err("Not enough free memory\n");
 		return -ENOMEM;
 	}
 
 	if (swsusp_alloc(&copy_bm, nr_pages, nr_highmem)) {
-		printk(KERN_ERR "PM: Memory allocation failed\n");
+		pr_err("Memory allocation failed\n");
 		return -ENOMEM;
 	}
 
@@ -1995,8 +1997,7 @@ asmlinkage __visible int swsusp_save(void)
 	nr_copy_pages = nr_pages;
 	nr_meta_pages = DIV_ROUND_UP(nr_pages * sizeof(long), PAGE_SIZE);
 
-	printk(KERN_INFO "PM: Hibernation image created (%d pages copied)\n",
-		nr_pages);
+	pr_info("Hibernation image created (%d pages copied)\n", nr_pages);
 
 	return 0;
 }
@@ -2170,7 +2171,7 @@ static int check_header(struct swsusp_info *info)
 	if (!reason && info->num_physpages != get_num_physpages())
 		reason = "memory size";
 	if (reason) {
-		printk(KERN_ERR "PM: Image mismatch: %s\n", reason);
+		pr_err("Image mismatch: %s\n", reason);
 		return -EPERM;
 	}
 	return 0;
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 3e2b4f519009..0685c4499431 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -120,22 +120,26 @@ static void s2idle_loop(void)
 		 * frozen processes + suspended devices + idle processors.
 		 * Thus s2idle_enter() should be called right after
 		 * all devices have been suspended.
+		 *
+		 * Wakeups during the noirq suspend of devices may be spurious,
+		 * so prevent them from terminating the loop right away.
 		 */
 		error = dpm_noirq_suspend_devices(PMSG_SUSPEND);
 		if (!error)
 			s2idle_enter();
+		else if (error == -EBUSY && pm_wakeup_pending())
+			error = 0;
 
-		dpm_noirq_resume_devices(PMSG_RESUME);
-		if (error && (error != -EBUSY || !pm_wakeup_pending())) {
-			dpm_noirq_end();
-			break;
-		}
-
-		if (s2idle_ops && s2idle_ops->wake)
+		if (!error && s2idle_ops && s2idle_ops->wake)
 			s2idle_ops->wake();
 
+		dpm_noirq_resume_devices(PMSG_RESUME);
+
 		dpm_noirq_end();
 
+		if (error)
+			break;
+
 		if (s2idle_ops && s2idle_ops->sync)
 			s2idle_ops->sync();
 
@@ -433,7 +437,6 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
 			error = suspend_ops->enter(state);
 			trace_suspend_resume(TPS("machine_suspend"),
 				state, false);
-			events_check_enabled = false;
 		} else if (*wakeup) {
 			error = -EBUSY;
 		}
@@ -578,6 +581,7 @@ static int enter_state(suspend_state_t state)
 	pm_restore_gfp_mask();
 
  Finish:
+	events_check_enabled = false;
 	pm_pr_dbg("Finishing wakeup.\n");
 	suspend_finish();
  Unlock:
diff --git a/kernel/power/swap.c b/kernel/power/swap.c
index d7cdc426ee38..293ead59eccc 100644
--- a/kernel/power/swap.c
+++ b/kernel/power/swap.c
@@ -12,6 +12,8 @@
  *
  */
 
+#define pr_fmt(fmt) "PM: " fmt
+
 #include <linux/module.h>
 #include <linux/file.h>
 #include <linux/delay.h>
@@ -241,9 +243,9 @@ static void hib_end_io(struct bio *bio)
 	struct page *page = bio->bi_io_vec[0].bv_page;
 
 	if (bio->bi_status) {
-		printk(KERN_ALERT "Read-error on swap-device (%u:%u:%Lu)\n",
-				MAJOR(bio_dev(bio)), MINOR(bio_dev(bio)),
-				(unsigned long long)bio->bi_iter.bi_sector);
+		pr_alert("Read-error on swap-device (%u:%u:%Lu)\n",
+			 MAJOR(bio_dev(bio)), MINOR(bio_dev(bio)),
+			 (unsigned long long)bio->bi_iter.bi_sector);
 	}
 
 	if (bio_data_dir(bio) == WRITE)
@@ -273,8 +275,8 @@ static int hib_submit_io(int op, int op_flags, pgoff_t page_off, void *addr,
 	bio_set_op_attrs(bio, op, op_flags);
 
 	if (bio_add_page(bio, page, PAGE_SIZE, 0) < PAGE_SIZE) {
-		printk(KERN_ERR "PM: Adding page to bio failed at %llu\n",
-			(unsigned long long)bio->bi_iter.bi_sector);
+		pr_err("Adding page to bio failed at %llu\n",
+		       (unsigned long long)bio->bi_iter.bi_sector);
 		bio_put(bio);
 		return -EFAULT;
 	}
@@ -319,7 +321,7 @@ static int mark_swapfiles(struct swap_map_handle *handle, unsigned int flags)
 		error = hib_submit_io(REQ_OP_WRITE, REQ_SYNC,
 				      swsusp_resume_block, swsusp_header, NULL);
 	} else {
-		printk(KERN_ERR "PM: Swap header not found!\n");
+		pr_err("Swap header not found!\n");
 		error = -ENODEV;
 	}
 	return error;
@@ -413,8 +415,7 @@ static int get_swap_writer(struct swap_map_handle *handle)
 	ret = swsusp_swap_check();
 	if (ret) {
 		if (ret != -ENOSPC)
-			printk(KERN_ERR "PM: Cannot find swap device, try "
-					"swapon -a.\n");
+			pr_err("Cannot find swap device, try swapon -a\n");
 		return ret;
 	}
 	handle->cur = (struct swap_map_page *)get_zeroed_page(GFP_KERNEL);
@@ -491,9 +492,9 @@ static int swap_writer_finish(struct swap_map_handle *handle,
 {
 	if (!error) {
 		flush_swap_writer(handle);
-		printk(KERN_INFO "PM: S");
+		pr_info("S");
 		error = mark_swapfiles(handle, flags);
-		printk("|\n");
+		pr_cont("|\n");
 	}
 
 	if (error)
@@ -542,7 +543,7 @@ static int save_image(struct swap_map_handle *handle,
 
 	hib_init_batch(&hb);
 
-	printk(KERN_INFO "PM: Saving image data pages (%u pages)...\n",
+	pr_info("Saving image data pages (%u pages)...\n",
 		nr_to_write);
 	m = nr_to_write / 10;
 	if (!m)
@@ -557,8 +558,8 @@ static int save_image(struct swap_map_handle *handle,
 		if (ret)
 			break;
 		if (!(nr_pages % m))
-			printk(KERN_INFO "PM: Image saving progress: %3d%%\n",
-			       nr_pages / m * 10);
+			pr_info("Image saving progress: %3d%%\n",
+				nr_pages / m * 10);
 		nr_pages++;
 	}
 	err2 = hib_wait_io(&hb);
@@ -566,7 +567,7 @@ static int save_image(struct swap_map_handle *handle,
 	if (!ret)
 		ret = err2;
 	if (!ret)
-		printk(KERN_INFO "PM: Image saving done.\n");
+		pr_info("Image saving done\n");
 	swsusp_show_speed(start, stop, nr_to_write, "Wrote");
 	return ret;
 }
@@ -692,14 +693,14 @@ static int save_image_lzo(struct swap_map_handle *handle,
 
 	page = (void *)__get_free_page(__GFP_RECLAIM | __GFP_HIGH);
 	if (!page) {
-		printk(KERN_ERR "PM: Failed to allocate LZO page\n");
+		pr_err("Failed to allocate LZO page\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
 
 	data = vmalloc(sizeof(*data) * nr_threads);
 	if (!data) {
-		printk(KERN_ERR "PM: Failed to allocate LZO data\n");
+		pr_err("Failed to allocate LZO data\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
@@ -708,7 +709,7 @@ static int save_image_lzo(struct swap_map_handle *handle,
 
 	crc = kmalloc(sizeof(*crc), GFP_KERNEL);
 	if (!crc) {
-		printk(KERN_ERR "PM: Failed to allocate crc\n");
+		pr_err("Failed to allocate crc\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
@@ -726,8 +727,7 @@ static int save_image_lzo(struct swap_map_handle *handle,
 		                            "image_compress/%u", thr);
 		if (IS_ERR(data[thr].thr)) {
 			data[thr].thr = NULL;
-			printk(KERN_ERR
-			       "PM: Cannot start compression threads\n");
+			pr_err("Cannot start compression threads\n");
 			ret = -ENOMEM;
 			goto out_clean;
 		}
@@ -749,7 +749,7 @@ static int save_image_lzo(struct swap_map_handle *handle,
 	crc->thr = kthread_run(crc32_threadfn, crc, "image_crc32");
 	if (IS_ERR(crc->thr)) {
 		crc->thr = NULL;
-		printk(KERN_ERR "PM: Cannot start CRC32 thread\n");
+		pr_err("Cannot start CRC32 thread\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
@@ -760,10 +760,9 @@ static int save_image_lzo(struct swap_map_handle *handle,
 	 */
 	handle->reqd_free_pages = reqd_free_pages();
 
-	printk(KERN_INFO
-		"PM: Using %u thread(s) for compression.\n"
-		"PM: Compressing and saving image data (%u pages)...\n",
-		nr_threads, nr_to_write);
+	pr_info("Using %u thread(s) for compression\n", nr_threads);
+	pr_info("Compressing and saving image data (%u pages)...\n",
+		nr_to_write);
 	m = nr_to_write / 10;
 	if (!m)
 		m = 1;
@@ -783,10 +782,8 @@ static int save_image_lzo(struct swap_map_handle *handle,
 				       data_of(*snapshot), PAGE_SIZE);
 
 				if (!(nr_pages % m))
-					printk(KERN_INFO
-					       "PM: Image saving progress: "
-					       "%3d%%\n",
-				               nr_pages / m * 10);
+					pr_info("Image saving progress: %3d%%\n",
+						nr_pages / m * 10);
 				nr_pages++;
 			}
 			if (!off)
@@ -813,15 +810,14 @@ static int save_image_lzo(struct swap_map_handle *handle,
 			ret = data[thr].ret;
 
 			if (ret < 0) {
-				printk(KERN_ERR "PM: LZO compression failed\n");
+				pr_err("LZO compression failed\n");
 				goto out_finish;
 			}
 
 			if (unlikely(!data[thr].cmp_len ||
 			             data[thr].cmp_len >
 			             lzo1x_worst_compress(data[thr].unc_len))) {
-				printk(KERN_ERR
-				       "PM: Invalid LZO compressed length\n");
+				pr_err("Invalid LZO compressed length\n");
 				ret = -1;
 				goto out_finish;
 			}
@@ -857,7 +853,7 @@ out_finish:
 	if (!ret)
 		ret = err2;
 	if (!ret)
-		printk(KERN_INFO "PM: Image saving done.\n");
+		pr_info("Image saving done\n");
 	swsusp_show_speed(start, stop, nr_to_write, "Wrote");
 out_clean:
 	if (crc) {
@@ -888,7 +884,7 @@ static int enough_swap(unsigned int nr_pages, unsigned int flags)
 	unsigned int free_swap = count_swap_pages(root_swap, 1);
 	unsigned int required;
 
-	pr_debug("PM: Free swap pages: %u\n", free_swap);
+	pr_debug("Free swap pages: %u\n", free_swap);
 
 	required = PAGES_FOR_IO + nr_pages;
 	return free_swap > required;
@@ -915,12 +911,12 @@ int swsusp_write(unsigned int flags)
 	pages = snapshot_get_image_size();
 	error = get_swap_writer(&handle);
 	if (error) {
-		printk(KERN_ERR "PM: Cannot get swap writer\n");
+		pr_err("Cannot get swap writer\n");
 		return error;
 	}
 	if (flags & SF_NOCOMPRESS_MODE) {
 		if (!enough_swap(pages, flags)) {
-			printk(KERN_ERR "PM: Not enough free swap\n");
+			pr_err("Not enough free swap\n");
 			error = -ENOSPC;
 			goto out_finish;
 		}
@@ -1068,8 +1064,7 @@ static int load_image(struct swap_map_handle *handle,
 	hib_init_batch(&hb);
 
 	clean_pages_on_read = true;
-	printk(KERN_INFO "PM: Loading image data pages (%u pages)...\n",
-		nr_to_read);
+	pr_info("Loading image data pages (%u pages)...\n", nr_to_read);
 	m = nr_to_read / 10;
 	if (!m)
 		m = 1;
@@ -1087,8 +1082,8 @@ static int load_image(struct swap_map_handle *handle,
 		if (ret)
 			break;
 		if (!(nr_pages % m))
-			printk(KERN_INFO "PM: Image loading progress: %3d%%\n",
-			       nr_pages / m * 10);
+			pr_info("Image loading progress: %3d%%\n",
+				nr_pages / m * 10);
 		nr_pages++;
 	}
 	err2 = hib_wait_io(&hb);
@@ -1096,7 +1091,7 @@ static int load_image(struct swap_map_handle *handle,
 	if (!ret)
 		ret = err2;
 	if (!ret) {
-		printk(KERN_INFO "PM: Image loading done.\n");
+		pr_info("Image loading done\n");
 		snapshot_write_finalize(snapshot);
 		if (!snapshot_image_loaded(snapshot))
 			ret = -ENODATA;
@@ -1190,14 +1185,14 @@ static int load_image_lzo(struct swap_map_handle *handle,
 
 	page = vmalloc(sizeof(*page) * LZO_MAX_RD_PAGES);
 	if (!page) {
-		printk(KERN_ERR "PM: Failed to allocate LZO page\n");
+		pr_err("Failed to allocate LZO page\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
 
 	data = vmalloc(sizeof(*data) * nr_threads);
 	if (!data) {
-		printk(KERN_ERR "PM: Failed to allocate LZO data\n");
+		pr_err("Failed to allocate LZO data\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
@@ -1206,7 +1201,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
 
 	crc = kmalloc(sizeof(*crc), GFP_KERNEL);
 	if (!crc) {
-		printk(KERN_ERR "PM: Failed to allocate crc\n");
+		pr_err("Failed to allocate crc\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
@@ -1226,8 +1221,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
 		                            "image_decompress/%u", thr);
 		if (IS_ERR(data[thr].thr)) {
 			data[thr].thr = NULL;
-			printk(KERN_ERR
-			       "PM: Cannot start decompression threads\n");
+			pr_err("Cannot start decompression threads\n");
 			ret = -ENOMEM;
 			goto out_clean;
 		}
@@ -1249,7 +1243,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
 	crc->thr = kthread_run(crc32_threadfn, crc, "image_crc32");
 	if (IS_ERR(crc->thr)) {
 		crc->thr = NULL;
-		printk(KERN_ERR "PM: Cannot start CRC32 thread\n");
+		pr_err("Cannot start CRC32 thread\n");
 		ret = -ENOMEM;
 		goto out_clean;
 	}
@@ -1274,8 +1268,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
 		if (!page[i]) {
 			if (i < LZO_CMP_PAGES) {
 				ring_size = i;
-				printk(KERN_ERR
-				       "PM: Failed to allocate LZO pages\n");
+				pr_err("Failed to allocate LZO pages\n");
 				ret = -ENOMEM;
 				goto out_clean;
 			} else {
@@ -1285,10 +1278,9 @@ static int load_image_lzo(struct swap_map_handle *handle,
 	}
 	want = ring_size = i;
 
-	printk(KERN_INFO
-		"PM: Using %u thread(s) for decompression.\n"
-		"PM: Loading and decompressing image data (%u pages)...\n",
-		nr_threads, nr_to_read);
+	pr_info("Using %u thread(s) for decompression\n", nr_threads);
+	pr_info("Loading and decompressing image data (%u pages)...\n",
+		nr_to_read);
 	m = nr_to_read / 10;
 	if (!m)
 		m = 1;
@@ -1348,8 +1340,7 @@ static int load_image_lzo(struct swap_map_handle *handle,
 			if (unlikely(!data[thr].cmp_len ||
 			             data[thr].cmp_len >
 			             lzo1x_worst_compress(LZO_UNC_SIZE))) {
-				printk(KERN_ERR
-				       "PM: Invalid LZO compressed length\n");
+				pr_err("Invalid LZO compressed length\n");
 				ret = -1;
 				goto out_finish;
 			}
@@ -1400,16 +1391,14 @@ static int load_image_lzo(struct swap_map_handle *handle,
 			ret = data[thr].ret;
 
 			if (ret < 0) {
-				printk(KERN_ERR
-				       "PM: LZO decompression failed\n");
+				pr_err("LZO decompression failed\n");
 				goto out_finish;
 			}
 
 			if (unlikely(!data[thr].unc_len ||
 			             data[thr].unc_len > LZO_UNC_SIZE ||
 			             data[thr].unc_len & (PAGE_SIZE - 1))) {
-				printk(KERN_ERR
-				       "PM: Invalid LZO uncompressed length\n");
+				pr_err("Invalid LZO uncompressed length\n");
 				ret = -1;
 				goto out_finish;
 			}
@@ -1420,10 +1409,8 @@ static int load_image_lzo(struct swap_map_handle *handle,
 				       data[thr].unc + off, PAGE_SIZE);
 
 				if (!(nr_pages % m))
-					printk(KERN_INFO
-					       "PM: Image loading progress: "
-					       "%3d%%\n",
-					       nr_pages / m * 10);
+					pr_info("Image loading progress: %3d%%\n",
+						nr_pages / m * 10);
 				nr_pages++;
 
 				ret = snapshot_write_next(snapshot);
@@ -1448,15 +1435,14 @@ out_finish:
 	}
 	stop = ktime_get();
 	if (!ret) {
-		printk(KERN_INFO "PM: Image loading done.\n");
+		pr_info("Image loading done\n");
 		snapshot_write_finalize(snapshot);
 		if (!snapshot_image_loaded(snapshot))
 			ret = -ENODATA;
 		if (!ret) {
 			if (swsusp_header->flags & SF_CRC32_MODE) {
 				if(handle->crc32 != swsusp_header->crc32) {
-					printk(KERN_ERR
-					       "PM: Invalid image CRC32!\n");
+					pr_err("Invalid image CRC32!\n");
 					ret = -ENODATA;
 				}
 			}
@@ -1513,9 +1499,9 @@ int swsusp_read(unsigned int *flags_p)
 	swap_reader_finish(&handle);
 end:
 	if (!error)
-		pr_debug("PM: Image successfully loaded\n");
+		pr_debug("Image successfully loaded\n");
 	else
-		pr_debug("PM: Error %d resuming\n", error);
+		pr_debug("Error %d resuming\n", error);
 	return error;
 }
 
@@ -1552,13 +1538,13 @@ put:
 		if (error)
 			blkdev_put(hib_resume_bdev, FMODE_READ);
 		else
-			pr_debug("PM: Image signature found, resuming\n");
+			pr_debug("Image signature found, resuming\n");
 	} else {
 		error = PTR_ERR(hib_resume_bdev);
 	}
 
 	if (error)
-		pr_debug("PM: Image not found (code %d)\n", error);
+		pr_debug("Image not found (code %d)\n", error);
 
 	return error;
 }
@@ -1570,7 +1556,7 @@ put:
 void swsusp_close(fmode_t mode)
 {
 	if (IS_ERR(hib_resume_bdev)) {
-		pr_debug("PM: Image device not initialised\n");
+		pr_debug("Image device not initialised\n");
 		return;
 	}
 
@@ -1594,7 +1580,7 @@ int swsusp_unmark(void)
 					swsusp_resume_block,
 					swsusp_header, NULL);
 	} else {
-		printk(KERN_ERR "PM: Cannot find swsusp signature!\n");
+		pr_err("Cannot find swsusp signature!\n");
 		error = -ENODEV;
 	}
 
diff --git a/kernel/power/wakelock.c b/kernel/power/wakelock.c
index 1896386e16bb..dfba59be190b 100644
--- a/kernel/power/wakelock.c
+++ b/kernel/power/wakelock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kernel/power/wakelock.c
  *
diff --git a/kernel/printk/braille.c b/kernel/printk/braille.c
index 61d41ca41844..1d21ebacfdb8 100644
--- a/kernel/printk/braille.c
+++ b/kernel/printk/braille.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
diff --git a/kernel/printk/braille.h b/kernel/printk/braille.h
index 749a6756843a..123154f86304 100644
--- a/kernel/printk/braille.h
+++ b/kernel/printk/braille.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PRINTK_BRAILLE_H
 #define _PRINTK_BRAILLE_H
 
diff --git a/kernel/printk/console_cmdline.h b/kernel/printk/console_cmdline.h
index 2ca4a8b5fe57..11f19c466af5 100644
--- a/kernel/printk/console_cmdline.h
+++ b/kernel/printk/console_cmdline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CONSOLE_CMDLINE_H
 #define _CONSOLE_CMDLINE_H
 
diff --git a/kernel/range.c b/kernel/range.c
index 82cfc285b046..d84de6766472 100644
--- a/kernel/range.c
+++ b/kernel/range.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Range add and subtract
  */
diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
index 13c0fc852767..020e8b6a644b 100644
--- a/kernel/rcu/Makefile
+++ b/kernel/rcu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Any varying coverage in these files is non-deterministic
 # and is generally not a function of system call inputs.
 KCOV_INSTRUMENT := n
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
index e4b43fef89f5..59c471de342a 100644
--- a/kernel/rcu/rcu.h
+++ b/kernel/rcu/rcu.h
@@ -203,6 +203,21 @@ static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head)
 extern int rcu_cpu_stall_suppress;
 int rcu_jiffies_till_stall_check(void);
 
+#define rcu_ftrace_dump_stall_suppress() \
+do { \
+	if (!rcu_cpu_stall_suppress) \
+		rcu_cpu_stall_suppress = 3; \
+} while (0)
+
+#define rcu_ftrace_dump_stall_unsuppress() \
+do { \
+	if (rcu_cpu_stall_suppress == 3) \
+		rcu_cpu_stall_suppress = 0; \
+} while (0)
+
+#else /* #endif #ifdef CONFIG_RCU_STALL_COMMON */
+#define rcu_ftrace_dump_stall_suppress()
+#define rcu_ftrace_dump_stall_unsuppress()
 #endif /* #ifdef CONFIG_RCU_STALL_COMMON */
 
 /*
@@ -220,8 +235,12 @@ do { \
 	static atomic_t ___rfd_beenhere = ATOMIC_INIT(0); \
 	\
 	if (!atomic_read(&___rfd_beenhere) && \
-	    !atomic_xchg(&___rfd_beenhere, 1)) \
+	    !atomic_xchg(&___rfd_beenhere, 1)) { \
+		tracing_off(); \
+		rcu_ftrace_dump_stall_suppress(); \
 		ftrace_dump(oops_dump_mode); \
+		rcu_ftrace_dump_stall_unsuppress(); \
+	} \
 } while (0)
 
 void rcu_early_boot_tests(void);
diff --git a/kernel/rcu/rcu_segcblist.c b/kernel/rcu/rcu_segcblist.c
index 7649fcd2c4c7..88cba7c2956c 100644
--- a/kernel/rcu/rcu_segcblist.c
+++ b/kernel/rcu/rcu_segcblist.c
@@ -23,6 +23,7 @@
 #include <linux/types.h>
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
+#include <linux/rcupdate.h>
 
 #include "rcu_segcblist.h"
 
diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c
index 45f2ffbc1e78..74f6b0146b98 100644
--- a/kernel/rcu/rcutorture.c
+++ b/kernel/rcu/rcutorture.c
@@ -51,6 +51,7 @@
 #include <asm/byteorder.h>
 #include <linux/torture.h>
 #include <linux/vmalloc.h>
+#include <linux/sched/debug.h>
 
 #include "rcu.h"
 
@@ -89,6 +90,7 @@ torture_param(int, shutdown_secs, 0, "Shutdown time (s), <= zero to disable.");
 torture_param(int, stall_cpu, 0, "Stall duration (s), zero to disable.");
 torture_param(int, stall_cpu_holdoff, 10,
 	     "Time to wait before starting stall (s).");
+torture_param(int, stall_cpu_irqsoff, 0, "Disable interrupts while stalling.");
 torture_param(int, stat_interval, 60,
 	     "Number of seconds between stats printk()s");
 torture_param(int, stutter, 5, "Number of seconds to run/halt test");
@@ -1076,7 +1078,7 @@ static void rcu_torture_timer_cb(struct rcu_head *rhp)
  * counter in the element should never be greater than 1, otherwise, the
  * RCU implementation is broken.
  */
-static void rcu_torture_timer(unsigned long unused)
+static void rcu_torture_timer(struct timer_list *unused)
 {
 	int idx;
 	unsigned long started;
@@ -1163,7 +1165,7 @@ rcu_torture_reader(void *arg)
 	VERBOSE_TOROUT_STRING("rcu_torture_reader task started");
 	set_user_nice(current, MAX_NICE);
 	if (irqreader && cur_ops->irq_capable)
-		setup_timer_on_stack(&t, rcu_torture_timer, 0);
+		timer_setup_on_stack(&t, rcu_torture_timer, 0);
 
 	do {
 		if (irqreader && cur_ops->irq_capable) {
@@ -1239,6 +1241,7 @@ rcu_torture_stats_print(void)
 	long pipesummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
 	long batchsummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
 	static unsigned long rtcv_snap = ULONG_MAX;
+	static bool splatted;
 	struct task_struct *wtp;
 
 	for_each_possible_cpu(cpu) {
@@ -1324,6 +1327,10 @@ rcu_torture_stats_print(void)
 			 gpnum, completed, flags,
 			 wtp == NULL ? ~0UL : wtp->state,
 			 wtp == NULL ? -1 : (int)task_cpu(wtp));
+		if (!splatted && wtp) {
+			sched_show_task(wtp);
+			splatted = true;
+		}
 		show_rcu_gp_kthreads();
 		rcu_ftrace_dump(DUMP_ALL);
 	}
@@ -1357,7 +1364,7 @@ rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag)
 		 "fqs_duration=%d fqs_holdoff=%d fqs_stutter=%d "
 		 "test_boost=%d/%d test_boost_interval=%d "
 		 "test_boost_duration=%d shutdown_secs=%d "
-		 "stall_cpu=%d stall_cpu_holdoff=%d "
+		 "stall_cpu=%d stall_cpu_holdoff=%d stall_cpu_irqsoff=%d "
 		 "n_barrier_cbs=%d "
 		 "onoff_interval=%d onoff_holdoff=%d\n",
 		 torture_type, tag, nrealreaders, nfakewriters,
@@ -1365,7 +1372,7 @@ rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag)
 		 stutter, irqreader, fqs_duration, fqs_holdoff, fqs_stutter,
 		 test_boost, cur_ops->can_boost,
 		 test_boost_interval, test_boost_duration, shutdown_secs,
-		 stall_cpu, stall_cpu_holdoff,
+		 stall_cpu, stall_cpu_holdoff, stall_cpu_irqsoff,
 		 n_barrier_cbs,
 		 onoff_interval, onoff_holdoff);
 }
@@ -1430,12 +1437,19 @@ static int rcu_torture_stall(void *args)
 	if (!kthread_should_stop()) {
 		stop_at = get_seconds() + stall_cpu;
 		/* RCU CPU stall is expected behavior in following code. */
-		pr_alert("rcu_torture_stall start.\n");
 		rcu_read_lock();
-		preempt_disable();
+		if (stall_cpu_irqsoff)
+			local_irq_disable();
+		else
+			preempt_disable();
+		pr_alert("rcu_torture_stall start on CPU %d.\n",
+			 smp_processor_id());
 		while (ULONG_CMP_LT(get_seconds(), stop_at))
 			continue;  /* Induce RCU CPU stall warning. */
-		preempt_enable();
+		if (stall_cpu_irqsoff)
+			local_irq_enable();
+		else
+			preempt_enable();
 		rcu_read_unlock();
 		pr_alert("rcu_torture_stall end.\n");
 	}
diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c
index 729a8706751d..6d5880089ff6 100644
--- a/kernel/rcu/srcutree.c
+++ b/kernel/rcu/srcutree.c
@@ -854,7 +854,7 @@ void __call_srcu(struct srcu_struct *sp, struct rcu_head *rhp,
 /**
  * call_srcu() - Queue a callback for invocation after an SRCU grace period
  * @sp: srcu_struct in queue the callback
- * @head: structure to be used for queueing the SRCU callback.
+ * @rhp: structure to be used for queueing the SRCU callback.
  * @func: function to be invoked after the SRCU grace period
  *
  * The callback function will be invoked some time after a full SRCU
diff --git a/kernel/rcu/sync.c b/kernel/rcu/sync.c
index 50d1861f7759..3f943efcf61c 100644
--- a/kernel/rcu/sync.c
+++ b/kernel/rcu/sync.c
@@ -85,6 +85,9 @@ void rcu_sync_init(struct rcu_sync *rsp, enum rcu_sync_type type)
 }
 
 /**
+ * rcu_sync_enter_start - Force readers onto slow path for multiple updates
+ * @rsp: Pointer to rcu_sync structure to use for synchronization
+ *
  * Must be called after rcu_sync_init() and before first use.
  *
  * Ensures rcu_sync_is_idle() returns false and rcu_sync_{enter,exit}()
@@ -142,7 +145,7 @@ void rcu_sync_enter(struct rcu_sync *rsp)
 
 /**
  * rcu_sync_func() - Callback function managing reader access to fastpath
- * @rsp: Pointer to rcu_sync structure to use for synchronization
+ * @rhp: Pointer to rcu_head in rcu_sync structure to use for synchronization
  *
  * This function is passed to one of the call_rcu() functions by
  * rcu_sync_exit(), so that it is invoked after a grace period following the
@@ -158,9 +161,9 @@ void rcu_sync_enter(struct rcu_sync *rsp)
  * rcu_sync_exit().  Otherwise, set all state back to idle so that readers
  * can again use their fastpaths.
  */
-static void rcu_sync_func(struct rcu_head *rcu)
+static void rcu_sync_func(struct rcu_head *rhp)
 {
-	struct rcu_sync *rsp = container_of(rcu, struct rcu_sync, cb_head);
+	struct rcu_sync *rsp = container_of(rhp, struct rcu_sync, cb_head);
 	unsigned long flags;
 
 	BUG_ON(rsp->gp_state != GP_PASSED);
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index 1250e4bd4b85..f9c0ca2ccf0c 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -534,8 +534,8 @@ module_param(rcu_kick_kthreads, bool, 0644);
  * How long the grace period must be before we start recruiting
  * quiescent-state help from rcu_note_context_switch().
  */
-static ulong jiffies_till_sched_qs = HZ / 20;
-module_param(jiffies_till_sched_qs, ulong, 0644);
+static ulong jiffies_till_sched_qs = HZ / 10;
+module_param(jiffies_till_sched_qs, ulong, 0444);
 
 static bool rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
 				  struct rcu_data *rdp);
@@ -734,7 +734,7 @@ static int rcu_future_needs_gp(struct rcu_state *rsp)
 	int idx = (READ_ONCE(rnp->completed) + 1) & 0x1;
 	int *fp = &rnp->need_future_gp[idx];
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_future_needs_gp() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	return READ_ONCE(*fp);
 }
 
@@ -746,7 +746,7 @@ static int rcu_future_needs_gp(struct rcu_state *rsp)
 static bool
 cpu_needs_another_gp(struct rcu_state *rsp, struct rcu_data *rdp)
 {
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "cpu_needs_another_gp() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	if (rcu_gp_in_progress(rsp))
 		return false;  /* No, a grace period is already in progress. */
 	if (rcu_future_needs_gp(rsp))
@@ -773,7 +773,7 @@ static void rcu_eqs_enter_common(bool user)
 	struct rcu_data *rdp;
 	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_eqs_enter_common() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	trace_rcu_dyntick(TPS("Start"), rdtp->dynticks_nesting, 0);
 	if (IS_ENABLED(CONFIG_RCU_EQS_DEBUG) &&
 	    !user && !is_idle_task(current)) {
@@ -837,10 +837,13 @@ static void rcu_eqs_enter(bool user)
  * We crowbar the ->dynticks_nesting field to zero to allow for
  * the possibility of usermode upcalls having messed up our count
  * of interrupt nesting level during the prior busy period.
+ *
+ * If you add or remove a call to rcu_idle_enter(), be sure to test with
+ * CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_idle_enter(void)
 {
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_idle_enter() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	rcu_eqs_enter(false);
 }
 
@@ -852,10 +855,13 @@ void rcu_idle_enter(void)
  * is permitted between this call and rcu_user_exit(). This way the
  * CPU doesn't need to maintain the tick for RCU maintenance purposes
  * when the CPU runs in userspace.
+ *
+ * If you add or remove a call to rcu_user_enter(), be sure to test with
+ * CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_user_enter(void)
 {
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_user_enter() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	rcu_eqs_enter(true);
 }
 #endif /* CONFIG_NO_HZ_FULL */
@@ -875,13 +881,21 @@ void rcu_user_enter(void)
  * Use things like work queues to work around this limitation.
  *
  * You have been warned.
+ *
+ * If you add or remove a call to rcu_irq_exit(), be sure to test with
+ * CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_irq_exit(void)
 {
 	struct rcu_dynticks *rdtp;
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_irq_exit() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	rdtp = this_cpu_ptr(&rcu_dynticks);
+
+	/* Page faults can happen in NMI handlers, so check... */
+	if (rdtp->dynticks_nmi_nesting)
+		return;
+
 	WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) &&
 		     rdtp->dynticks_nesting < 1);
 	if (rdtp->dynticks_nesting <= 1) {
@@ -894,6 +908,9 @@ void rcu_irq_exit(void)
 
 /*
  * Wrapper for rcu_irq_exit() where interrupts are enabled.
+ *
+ * If you add or remove a call to rcu_irq_exit_irqson(), be sure to test
+ * with CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_irq_exit_irqson(void)
 {
@@ -942,7 +959,7 @@ static void rcu_eqs_exit(bool user)
 	struct rcu_dynticks *rdtp;
 	long long oldval;
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_eqs_exit() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	rdtp = this_cpu_ptr(&rcu_dynticks);
 	oldval = rdtp->dynticks_nesting;
 	WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) && oldval < 0);
@@ -966,6 +983,9 @@ static void rcu_eqs_exit(bool user)
  * allow for the possibility of usermode upcalls messing up our count
  * of interrupt nesting level during the busy period that is just
  * now starting.
+ *
+ * If you add or remove a call to rcu_idle_exit(), be sure to test with
+ * CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_idle_exit(void)
 {
@@ -982,6 +1002,9 @@ void rcu_idle_exit(void)
  *
  * Exit RCU idle mode while entering the kernel because it can
  * run a RCU read side critical section anytime.
+ *
+ * If you add or remove a call to rcu_user_exit(), be sure to test with
+ * CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_user_exit(void)
 {
@@ -1007,14 +1030,22 @@ void rcu_user_exit(void)
  * Use things like work queues to work around this limitation.
  *
  * You have been warned.
+ *
+ * If you add or remove a call to rcu_irq_enter(), be sure to test with
+ * CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_irq_enter(void)
 {
 	struct rcu_dynticks *rdtp;
 	long long oldval;
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_irq_enter() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	rdtp = this_cpu_ptr(&rcu_dynticks);
+
+	/* Page faults can happen in NMI handlers, so check... */
+	if (rdtp->dynticks_nmi_nesting)
+		return;
+
 	oldval = rdtp->dynticks_nesting;
 	rdtp->dynticks_nesting++;
 	WARN_ON_ONCE(IS_ENABLED(CONFIG_RCU_EQS_DEBUG) &&
@@ -1027,6 +1058,9 @@ void rcu_irq_enter(void)
 
 /*
  * Wrapper for rcu_irq_enter() where interrupts are enabled.
+ *
+ * If you add or remove a call to rcu_irq_enter_irqson(), be sure to test
+ * with CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_irq_enter_irqson(void)
 {
@@ -1045,6 +1079,9 @@ void rcu_irq_enter_irqson(void)
  * that the CPU is active.  This implementation permits nested NMIs, as
  * long as the nesting level does not overflow an int.  (You will probably
  * run out of stack space first.)
+ *
+ * If you add or remove a call to rcu_nmi_enter(), be sure to test
+ * with CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_nmi_enter(void)
 {
@@ -1077,6 +1114,9 @@ void rcu_nmi_enter(void)
  * RCU-idle period, update rdtp->dynticks and rdtp->dynticks_nmi_nesting
  * to let the RCU grace-period handling know that the CPU is back to
  * being RCU-idle.
+ *
+ * If you add or remove a call to rcu_nmi_exit(), be sure to test
+ * with CONFIG_RCU_EQS_DEBUG=y.
  */
 void rcu_nmi_exit(void)
 {
@@ -1197,6 +1237,22 @@ static int rcu_is_cpu_rrupt_from_idle(void)
 }
 
 /*
+ * We are reporting a quiescent state on behalf of some other CPU, so
+ * it is our responsibility to check for and handle potential overflow
+ * of the rcu_node ->gpnum counter with respect to the rcu_data counters.
+ * After all, the CPU might be in deep idle state, and thus executing no
+ * code whatsoever.
+ */
+static void rcu_gpnum_ovf(struct rcu_node *rnp, struct rcu_data *rdp)
+{
+	lockdep_assert_held(&rnp->lock);
+	if (ULONG_CMP_LT(READ_ONCE(rdp->gpnum) + ULONG_MAX / 4, rnp->gpnum))
+		WRITE_ONCE(rdp->gpwrap, true);
+	if (ULONG_CMP_LT(rdp->rcu_iw_gpnum + ULONG_MAX / 4, rnp->gpnum))
+		rdp->rcu_iw_gpnum = rnp->gpnum + ULONG_MAX / 4;
+}
+
+/*
  * Snapshot the specified CPU's dynticks counter so that we can later
  * credit them with an implicit quiescent state.  Return 1 if this CPU
  * is in dynticks idle mode, which is an extended quiescent state.
@@ -1206,15 +1262,34 @@ static int dyntick_save_progress_counter(struct rcu_data *rdp)
 	rdp->dynticks_snap = rcu_dynticks_snap(rdp->dynticks);
 	if (rcu_dynticks_in_eqs(rdp->dynticks_snap)) {
 		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
-		if (ULONG_CMP_LT(READ_ONCE(rdp->gpnum) + ULONG_MAX / 4,
-				 rdp->mynode->gpnum))
-			WRITE_ONCE(rdp->gpwrap, true);
+		rcu_gpnum_ovf(rdp->mynode, rdp);
 		return 1;
 	}
 	return 0;
 }
 
 /*
+ * Handler for the irq_work request posted when a grace period has
+ * gone on for too long, but not yet long enough for an RCU CPU
+ * stall warning.  Set state appropriately, but just complain if
+ * there is unexpected state on entry.
+ */
+static void rcu_iw_handler(struct irq_work *iwp)
+{
+	struct rcu_data *rdp;
+	struct rcu_node *rnp;
+
+	rdp = container_of(iwp, struct rcu_data, rcu_iw);
+	rnp = rdp->mynode;
+	raw_spin_lock_rcu_node(rnp);
+	if (!WARN_ON_ONCE(!rdp->rcu_iw_pending)) {
+		rdp->rcu_iw_gpnum = rnp->gpnum;
+		rdp->rcu_iw_pending = false;
+	}
+	raw_spin_unlock_rcu_node(rnp);
+}
+
+/*
  * Return true if the specified CPU has passed through a quiescent
  * state by virtue of being in or having passed through an dynticks
  * idle state since the last call to dyntick_save_progress_counter()
@@ -1225,8 +1300,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
 	unsigned long jtsq;
 	bool *rnhqp;
 	bool *ruqp;
-	unsigned long rjtsc;
-	struct rcu_node *rnp;
+	struct rcu_node *rnp = rdp->mynode;
 
 	/*
 	 * If the CPU passed through or entered a dynticks idle phase with
@@ -1239,34 +1313,25 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
 	if (rcu_dynticks_in_eqs_since(rdp->dynticks, rdp->dynticks_snap)) {
 		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
 		rdp->dynticks_fqs++;
+		rcu_gpnum_ovf(rnp, rdp);
 		return 1;
 	}
 
-	/* Compute and saturate jiffies_till_sched_qs. */
-	jtsq = jiffies_till_sched_qs;
-	rjtsc = rcu_jiffies_till_stall_check();
-	if (jtsq > rjtsc / 2) {
-		WRITE_ONCE(jiffies_till_sched_qs, rjtsc);
-		jtsq = rjtsc / 2;
-	} else if (jtsq < 1) {
-		WRITE_ONCE(jiffies_till_sched_qs, 1);
-		jtsq = 1;
-	}
-
 	/*
 	 * Has this CPU encountered a cond_resched_rcu_qs() since the
 	 * beginning of the grace period?  For this to be the case,
 	 * the CPU has to have noticed the current grace period.  This
 	 * might not be the case for nohz_full CPUs looping in the kernel.
 	 */
-	rnp = rdp->mynode;
+	jtsq = jiffies_till_sched_qs;
 	ruqp = per_cpu_ptr(&rcu_dynticks.rcu_urgent_qs, rdp->cpu);
 	if (time_after(jiffies, rdp->rsp->gp_start + jtsq) &&
 	    READ_ONCE(rdp->rcu_qs_ctr_snap) != per_cpu(rcu_dynticks.rcu_qs_ctr, rdp->cpu) &&
 	    READ_ONCE(rdp->gpnum) == rnp->gpnum && !rdp->gpwrap) {
 		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("rqc"));
+		rcu_gpnum_ovf(rnp, rdp);
 		return 1;
-	} else {
+	} else if (time_after(jiffies, rdp->rsp->gp_start + jtsq)) {
 		/* Load rcu_qs_ctr before store to rcu_urgent_qs. */
 		smp_store_release(ruqp, true);
 	}
@@ -1275,6 +1340,7 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
 	if (!(rdp->grpmask & rcu_rnp_online_cpus(rnp))) {
 		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("ofl"));
 		rdp->offline_fqs++;
+		rcu_gpnum_ovf(rnp, rdp);
 		return 1;
 	}
 
@@ -1294,10 +1360,6 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
 	 * updates are only once every few jiffies, the probability of
 	 * lossage (and thus of slight grace-period extension) is
 	 * quite low.
-	 *
-	 * Note that if the jiffies_till_sched_qs boot/sysfs parameter
-	 * is set too high, we override with half of the RCU CPU stall
-	 * warning delay.
 	 */
 	rnhqp = &per_cpu(rcu_dynticks.rcu_need_heavy_qs, rdp->cpu);
 	if (!READ_ONCE(*rnhqp) &&
@@ -1306,15 +1368,26 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp)
 		WRITE_ONCE(*rnhqp, true);
 		/* Store rcu_need_heavy_qs before rcu_urgent_qs. */
 		smp_store_release(ruqp, true);
-		rdp->rsp->jiffies_resched += 5; /* Re-enable beating. */
+		rdp->rsp->jiffies_resched += jtsq; /* Re-enable beating. */
 	}
 
 	/*
-	 * If more than halfway to RCU CPU stall-warning time, do
-	 * a resched_cpu() to try to loosen things up a bit.
+	 * If more than halfway to RCU CPU stall-warning time, do a
+	 * resched_cpu() to try to loosen things up a bit.  Also check to
+	 * see if the CPU is getting hammered with interrupts, but only
+	 * once per grace period, just to keep the IPIs down to a dull roar.
 	 */
-	if (jiffies - rdp->rsp->gp_start > rcu_jiffies_till_stall_check() / 2)
+	if (jiffies - rdp->rsp->gp_start > rcu_jiffies_till_stall_check() / 2) {
 		resched_cpu(rdp->cpu);
+		if (IS_ENABLED(CONFIG_IRQ_WORK) &&
+		    !rdp->rcu_iw_pending && rdp->rcu_iw_gpnum != rnp->gpnum &&
+		    (rnp->ffmask & rdp->grpmask)) {
+			init_irq_work(&rdp->rcu_iw, rcu_iw_handler);
+			rdp->rcu_iw_pending = true;
+			rdp->rcu_iw_gpnum = rnp->gpnum;
+			irq_work_queue_on(&rdp->rcu_iw, rdp->cpu);
+		}
+	}
 
 	return 0;
 }
@@ -1503,6 +1576,7 @@ static void print_cpu_stall(struct rcu_state *rsp)
 {
 	int cpu;
 	unsigned long flags;
+	struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
 	struct rcu_node *rnp = rcu_get_root(rsp);
 	long totqlen = 0;
 
@@ -1518,7 +1592,9 @@ static void print_cpu_stall(struct rcu_state *rsp)
 	 */
 	pr_err("INFO: %s self-detected stall on CPU", rsp->name);
 	print_cpu_stall_info_begin();
+	raw_spin_lock_irqsave_rcu_node(rdp->mynode, flags);
 	print_cpu_stall_info(rsp, smp_processor_id());
+	raw_spin_unlock_irqrestore_rcu_node(rdp->mynode, flags);
 	print_cpu_stall_info_end();
 	for_each_possible_cpu(cpu)
 		totqlen += rcu_segcblist_n_cbs(&per_cpu_ptr(rsp->rda,
@@ -1912,6 +1988,7 @@ static bool __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp,
 		rdp->core_needs_qs = need_gp;
 		zero_cpu_stall_ticks(rdp);
 		WRITE_ONCE(rdp->gpwrap, false);
+		rcu_gpnum_ovf(rnp, rdp);
 	}
 	return ret;
 }
@@ -3087,9 +3164,10 @@ __call_rcu(struct rcu_head *head, rcu_callback_t func,
  * read-side critical sections have completed. call_rcu_sched() assumes
  * that the read-side critical sections end on enabling of preemption
  * or on voluntary preemption.
- * RCU read-side critical sections are delimited by :
- *  - rcu_read_lock_sched() and rcu_read_unlock_sched(), OR
- *  - anything that disables preemption.
+ * RCU read-side critical sections are delimited by:
+ *
+ * - rcu_read_lock_sched() and rcu_read_unlock_sched(), OR
+ * - anything that disables preemption.
  *
  *  These may be nested.
  *
@@ -3114,11 +3192,12 @@ EXPORT_SYMBOL_GPL(call_rcu_sched);
  * handler. This means that read-side critical sections in process
  * context must not be interrupted by softirqs. This interface is to be
  * used when most of the read-side critical sections are in softirq context.
- * RCU read-side critical sections are delimited by :
- *  - rcu_read_lock() and  rcu_read_unlock(), if in interrupt context.
- *  OR
- *  - rcu_read_lock_bh() and rcu_read_unlock_bh(), if in process context.
- *  These may be nested.
+ * RCU read-side critical sections are delimited by:
+ *
+ * - rcu_read_lock() and  rcu_read_unlock(), if in interrupt context, OR
+ * - rcu_read_lock_bh() and rcu_read_unlock_bh(), if in process context.
+ *
+ * These may be nested.
  *
  * See the description of call_rcu() for more detailed information on
  * memory ordering guarantees.
@@ -3690,6 +3769,8 @@ rcu_init_percpu_data(int cpu, struct rcu_state *rsp)
 	rdp->cpu_no_qs.b.norm = true;
 	rdp->rcu_qs_ctr_snap = per_cpu(rcu_dynticks.rcu_qs_ctr, cpu);
 	rdp->core_needs_qs = false;
+	rdp->rcu_iw_pending = false;
+	rdp->rcu_iw_gpnum = rnp->gpnum - 1;
 	trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpuonl"));
 	raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
 }
@@ -3727,10 +3808,24 @@ static void rcutree_affinity_setting(unsigned int cpu, int outgoing)
  */
 int rcutree_online_cpu(unsigned int cpu)
 {
-	sync_sched_exp_online_cleanup(cpu);
-	rcutree_affinity_setting(cpu, -1);
+	unsigned long flags;
+	struct rcu_data *rdp;
+	struct rcu_node *rnp;
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp) {
+		rdp = per_cpu_ptr(rsp->rda, cpu);
+		rnp = rdp->mynode;
+		raw_spin_lock_irqsave_rcu_node(rnp, flags);
+		rnp->ffmask |= rdp->grpmask;
+		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
+	}
 	if (IS_ENABLED(CONFIG_TREE_SRCU))
 		srcu_online_cpu(cpu);
+	if (rcu_scheduler_active == RCU_SCHEDULER_INACTIVE)
+		return 0; /* Too early in boot for scheduler work. */
+	sync_sched_exp_online_cleanup(cpu);
+	rcutree_affinity_setting(cpu, -1);
 	return 0;
 }
 
@@ -3740,6 +3835,19 @@ int rcutree_online_cpu(unsigned int cpu)
  */
 int rcutree_offline_cpu(unsigned int cpu)
 {
+	unsigned long flags;
+	struct rcu_data *rdp;
+	struct rcu_node *rnp;
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp) {
+		rdp = per_cpu_ptr(rsp->rda, cpu);
+		rnp = rdp->mynode;
+		raw_spin_lock_irqsave_rcu_node(rnp, flags);
+		rnp->ffmask &= ~rdp->grpmask;
+		raw_spin_unlock_irqrestore_rcu_node(rnp, flags);
+	}
+
 	rcutree_affinity_setting(cpu, cpu);
 	if (IS_ENABLED(CONFIG_TREE_SRCU))
 		srcu_offline_cpu(cpu);
@@ -4188,8 +4296,7 @@ void __init rcu_init(void)
 	for_each_online_cpu(cpu) {
 		rcutree_prepare_cpu(cpu);
 		rcu_cpu_starting(cpu);
-		if (IS_ENABLED(CONFIG_TREE_SRCU))
-			srcu_online_cpu(cpu);
+		rcutree_online_cpu(cpu);
 	}
 }
 
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
index 8e1f285f0a70..46a5d1991450 100644
--- a/kernel/rcu/tree.h
+++ b/kernel/rcu/tree.h
@@ -103,6 +103,7 @@ struct rcu_node {
 				/* Online CPUs for next expedited GP. */
 				/*  Any CPU that has ever been online will */
 				/*  have its bit set. */
+	unsigned long ffmask;	/* Fully functional CPUs. */
 	unsigned long grpmask;	/* Mask to apply to parent qsmask. */
 				/*  Only one bit will be set in this mask. */
 	int	grplo;		/* lowest-numbered CPU or group here. */
@@ -285,6 +286,10 @@ struct rcu_data {
 
 	/* 8) RCU CPU stall data. */
 	unsigned int softirq_snap;	/* Snapshot of softirq activity. */
+	/* ->rcu_iw* fields protected by leaf rcu_node ->lock. */
+	struct irq_work rcu_iw;		/* Check for non-irq activity. */
+	bool rcu_iw_pending;		/* Is ->rcu_iw pending? */
+	unsigned long rcu_iw_gpnum;	/* ->gpnum associated with ->rcu_iw. */
 
 	int cpu;
 	struct rcu_state *rsp;
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index e012b9be777e..db85ca3975f1 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -29,6 +29,7 @@
 #include <linux/oom.h>
 #include <linux/sched/debug.h>
 #include <linux/smpboot.h>
+#include <linux/sched/isolation.h>
 #include <uapi/linux/sched/types.h>
 #include "../time/tick-internal.h"
 
@@ -54,6 +55,7 @@ DEFINE_PER_CPU(char, rcu_cpu_has_work);
  * This probably needs to be excluded from -rt builds.
  */
 #define rt_mutex_owner(a) ({ WARN_ON_ONCE(1); NULL; })
+#define rt_mutex_futex_unlock(x) WARN_ON_ONCE(1)
 
 #endif /* #else #ifdef CONFIG_RCU_BOOST */
 
@@ -325,7 +327,7 @@ static void rcu_preempt_note_context_switch(bool preempt)
 	struct rcu_data *rdp;
 	struct rcu_node *rnp;
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_preempt_note_context_switch() invoked with interrupts enabled!!!\n");
+	lockdep_assert_irqs_disabled();
 	WARN_ON_ONCE(!preempt && t->rcu_read_lock_nesting > 0);
 	if (t->rcu_read_lock_nesting > 0 &&
 	    !t->rcu_read_unlock_special.b.blocked) {
@@ -530,7 +532,7 @@ void rcu_read_unlock_special(struct task_struct *t)
 
 		/* Unboost if we were boosted. */
 		if (IS_ENABLED(CONFIG_RCU_BOOST) && drop_boost_mutex)
-			rt_mutex_unlock(&rnp->boost_mtx);
+			rt_mutex_futex_unlock(&rnp->boost_mtx);
 
 		/*
 		 * If this was the last task on the expedited lists,
@@ -911,8 +913,6 @@ void exit_rcu(void)
 
 #ifdef CONFIG_RCU_BOOST
 
-#include "../locking/rtmutex_common.h"
-
 static void rcu_wake_cond(struct task_struct *t, int status)
 {
 	/*
@@ -1421,7 +1421,7 @@ int rcu_needs_cpu(u64 basemono, u64 *nextevt)
 	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
 	unsigned long dj;
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_needs_cpu() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 
 	/* Snapshot to detect later posting of non-lazy callback. */
 	rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
@@ -1470,7 +1470,7 @@ static void rcu_prepare_for_idle(void)
 	struct rcu_state *rsp;
 	int tne;
 
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_prepare_for_idle() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	if (rcu_is_nocb_cpu(smp_processor_id()))
 		return;
 
@@ -1507,7 +1507,7 @@ static void rcu_prepare_for_idle(void)
 	rdtp->last_accelerate = jiffies;
 	for_each_rcu_flavor(rsp) {
 		rdp = this_cpu_ptr(rsp->rda);
-		if (rcu_segcblist_pend_cbs(&rdp->cblist))
+		if (!rcu_segcblist_pend_cbs(&rdp->cblist))
 			continue;
 		rnp = rdp->mynode;
 		raw_spin_lock_rcu_node(rnp); /* irqs already disabled. */
@@ -1525,7 +1525,7 @@ static void rcu_prepare_for_idle(void)
  */
 static void rcu_cleanup_after_idle(void)
 {
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_cleanup_after_idle() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	if (rcu_is_nocb_cpu(smp_processor_id()))
 		return;
 	if (rcu_try_advance_all_cbs())
@@ -1671,6 +1671,7 @@ static void print_cpu_stall_info_begin(void)
  */
 static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
 {
+	unsigned long delta;
 	char fast_no_hz[72];
 	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
 	struct rcu_dynticks *rdtp = rdp->dynticks;
@@ -1685,11 +1686,15 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
 		ticks_value = rsp->gpnum - rdp->gpnum;
 	}
 	print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
-	pr_err("\t%d-%c%c%c: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u fqs=%ld %s\n",
+	delta = rdp->mynode->gpnum - rdp->rcu_iw_gpnum;
+	pr_err("\t%d-%c%c%c%c: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u fqs=%ld %s\n",
 	       cpu,
 	       "O."[!!cpu_online(cpu)],
 	       "o."[!!(rdp->grpmask & rdp->mynode->qsmaskinit)],
 	       "N."[!!(rdp->grpmask & rdp->mynode->qsmaskinitnext)],
+	       !IS_ENABLED(CONFIG_IRQ_WORK) ? '?' :
+			rdp->rcu_iw_pending ? (int)min(delta, 9UL) + '0' :
+				"!."[!delta],
 	       ticks_value, ticks_title,
 	       rcu_dynticks_snap(rdtp) & 0xfff,
 	       rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
@@ -2012,7 +2017,7 @@ static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_data *my_rdp,
 						     struct rcu_data *rdp,
 						     unsigned long flags)
 {
-	RCU_LOCKDEP_WARN(!irqs_disabled(), "rcu_nocb_adopt_orphan_cbs() invoked with irqs enabled!!!");
+	lockdep_assert_irqs_disabled();
 	if (!rcu_is_nocb_cpu(smp_processor_id()))
 		return false; /* Not NOCBs CPU, caller must migrate CBs. */
 	__call_rcu_nocb_enqueue(my_rdp, rcu_segcblist_head(&rdp->cblist),
@@ -2261,9 +2266,11 @@ static void do_nocb_deferred_wakeup_common(struct rcu_data *rdp)
 }
 
 /* Do a deferred wakeup of rcu_nocb_kthread() from a timer handler. */
-static void do_nocb_deferred_wakeup_timer(unsigned long x)
+static void do_nocb_deferred_wakeup_timer(struct timer_list *t)
 {
-	do_nocb_deferred_wakeup_common((struct rcu_data *)x);
+	struct rcu_data *rdp = from_timer(rdp, t, nocb_timer);
+
+	do_nocb_deferred_wakeup_common(rdp);
 }
 
 /*
@@ -2327,8 +2334,7 @@ static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
 	init_swait_queue_head(&rdp->nocb_wq);
 	rdp->nocb_follower_tail = &rdp->nocb_follower_head;
 	raw_spin_lock_init(&rdp->nocb_lock);
-	setup_timer(&rdp->nocb_timer, do_nocb_deferred_wakeup_timer,
-		    (unsigned long)rdp);
+	timer_setup(&rdp->nocb_timer, do_nocb_deferred_wakeup_timer, 0);
 }
 
 /*
@@ -2583,7 +2589,7 @@ static void rcu_bind_gp_kthread(void)
 
 	if (!tick_nohz_full_enabled())
 		return;
-	housekeeping_affine(current);
+	housekeeping_affine(current, HK_FLAG_RCU);
 }
 
 /* Record the current task on dyntick-idle entry. */
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
index 5033b66d2753..fbd56d6e575b 100644
--- a/kernel/rcu/update.c
+++ b/kernel/rcu/update.c
@@ -51,6 +51,7 @@
 #include <linux/kthread.h>
 #include <linux/tick.h>
 #include <linux/rcupdate_wait.h>
+#include <linux/sched/isolation.h>
 
 #define CREATE_TRACE_POINTS
 
@@ -494,6 +495,7 @@ EXPORT_SYMBOL_GPL(do_trace_rcu_torture_read);
 #endif
 
 int rcu_cpu_stall_suppress __read_mostly; /* 1 = suppress stall warnings. */
+EXPORT_SYMBOL_GPL(rcu_cpu_stall_suppress);
 static int rcu_cpu_stall_timeout __read_mostly = CONFIG_RCU_CPU_STALL_TIMEOUT;
 
 module_param(rcu_cpu_stall_suppress, int, 0644);
@@ -575,7 +577,6 @@ DEFINE_STATIC_SRCU(tasks_rcu_exit_srcu);
 static int rcu_task_stall_timeout __read_mostly = RCU_TASK_STALL_TIMEOUT;
 module_param(rcu_task_stall_timeout, int, 0644);
 
-static void rcu_spawn_tasks_kthread(void);
 static struct task_struct *rcu_tasks_kthread_ptr;
 
 /**
@@ -600,7 +601,6 @@ void call_rcu_tasks(struct rcu_head *rhp, rcu_callback_t func)
 {
 	unsigned long flags;
 	bool needwake;
-	bool havetask = READ_ONCE(rcu_tasks_kthread_ptr);
 
 	rhp->next = NULL;
 	rhp->func = func;
@@ -610,11 +610,8 @@ void call_rcu_tasks(struct rcu_head *rhp, rcu_callback_t func)
 	rcu_tasks_cbs_tail = &rhp->next;
 	raw_spin_unlock_irqrestore(&rcu_tasks_cbs_lock, flags);
 	/* We can't create the thread unless interrupts are enabled. */
-	if ((needwake && havetask) ||
-	    (!havetask && !irqs_disabled_flags(flags))) {
-		rcu_spawn_tasks_kthread();
+	if (needwake && READ_ONCE(rcu_tasks_kthread_ptr))
 		wake_up(&rcu_tasks_cbs_wq);
-	}
 }
 EXPORT_SYMBOL_GPL(call_rcu_tasks);
 
@@ -718,7 +715,7 @@ static int __noreturn rcu_tasks_kthread(void *arg)
 	LIST_HEAD(rcu_tasks_holdouts);
 
 	/* Run on housekeeping CPUs by default.  Sysadm can move if desired. */
-	housekeeping_affine(current);
+	housekeeping_affine(current, HK_FLAG_RCU);
 
 	/*
 	 * Each pass through the following loop makes one check for
@@ -853,27 +850,18 @@ static int __noreturn rcu_tasks_kthread(void *arg)
 	}
 }
 
-/* Spawn rcu_tasks_kthread() at first call to call_rcu_tasks(). */
-static void rcu_spawn_tasks_kthread(void)
+/* Spawn rcu_tasks_kthread() at core_initcall() time. */
+static int __init rcu_spawn_tasks_kthread(void)
 {
-	static DEFINE_MUTEX(rcu_tasks_kthread_mutex);
 	struct task_struct *t;
 
-	if (READ_ONCE(rcu_tasks_kthread_ptr)) {
-		smp_mb(); /* Ensure caller sees full kthread. */
-		return;
-	}
-	mutex_lock(&rcu_tasks_kthread_mutex);
-	if (rcu_tasks_kthread_ptr) {
-		mutex_unlock(&rcu_tasks_kthread_mutex);
-		return;
-	}
 	t = kthread_run(rcu_tasks_kthread, NULL, "rcu_tasks_kthread");
 	BUG_ON(IS_ERR(t));
 	smp_mb(); /* Ensure others see full kthread. */
 	WRITE_ONCE(rcu_tasks_kthread_ptr, t);
-	mutex_unlock(&rcu_tasks_kthread_mutex);
+	return 0;
 }
+core_initcall(rcu_spawn_tasks_kthread);
 
 /* Do the srcu_read_lock() for the above synchronize_srcu().  */
 void exit_tasks_rcu_start(void)
diff --git a/kernel/resource.c b/kernel/resource.c
index 9b5f04404152..54ba6de3757c 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -397,9 +397,32 @@ static int find_next_iomem_res(struct resource *res, unsigned long desc,
 		res->start = p->start;
 	if (res->end > p->end)
 		res->end = p->end;
+	res->flags = p->flags;
+	res->desc = p->desc;
 	return 0;
 }
 
+static int __walk_iomem_res_desc(struct resource *res, unsigned long desc,
+				 bool first_level_children_only,
+				 void *arg,
+				 int (*func)(struct resource *, void *))
+{
+	u64 orig_end = res->end;
+	int ret = -1;
+
+	while ((res->start < res->end) &&
+	       !find_next_iomem_res(res, desc, first_level_children_only)) {
+		ret = (*func)(res, arg);
+		if (ret)
+			break;
+
+		res->start = res->end + 1;
+		res->end = orig_end;
+	}
+
+	return ret;
+}
+
 /*
  * Walks through iomem resources and calls func() with matching resource
  * ranges. This walks through whole tree and not just first level children.
@@ -415,29 +438,15 @@ static int find_next_iomem_res(struct resource *res, unsigned long desc,
  * <linux/ioport.h> and set it in 'desc' of a target resource entry.
  */
 int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,
-		u64 end, void *arg, int (*func)(u64, u64, void *))
+		u64 end, void *arg, int (*func)(struct resource *, void *))
 {
 	struct resource res;
-	u64 orig_end;
-	int ret = -1;
 
 	res.start = start;
 	res.end = end;
 	res.flags = flags;
-	orig_end = res.end;
-
-	while ((res.start < res.end) &&
-		(!find_next_iomem_res(&res, desc, false))) {
-
-		ret = (*func)(res.start, res.end, arg);
-		if (ret)
-			break;
-
-		res.start = res.end + 1;
-		res.end = orig_end;
-	}
 
-	return ret;
+	return __walk_iomem_res_desc(&res, desc, false, arg, func);
 }
 
 /*
@@ -448,25 +457,33 @@ int walk_iomem_res_desc(unsigned long desc, unsigned long flags, u64 start,
  * ranges.
  */
 int walk_system_ram_res(u64 start, u64 end, void *arg,
-				int (*func)(u64, u64, void *))
+				int (*func)(struct resource *, void *))
 {
 	struct resource res;
-	u64 orig_end;
-	int ret = -1;
 
 	res.start = start;
 	res.end = end;
 	res.flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;
-	orig_end = res.end;
-	while ((res.start < res.end) &&
-		(!find_next_iomem_res(&res, IORES_DESC_NONE, true))) {
-		ret = (*func)(res.start, res.end, arg);
-		if (ret)
-			break;
-		res.start = res.end + 1;
-		res.end = orig_end;
-	}
-	return ret;
+
+	return __walk_iomem_res_desc(&res, IORES_DESC_NONE, true,
+				     arg, func);
+}
+
+/*
+ * This function calls the @func callback against all memory ranges, which
+ * are ranges marked as IORESOURCE_MEM and IORESOUCE_BUSY.
+ */
+int walk_mem_res(u64 start, u64 end, void *arg,
+		 int (*func)(struct resource *, void *))
+{
+	struct resource res;
+
+	res.start = start;
+	res.end = end;
+	res.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+
+	return __walk_iomem_res_desc(&res, IORES_DESC_NONE, true,
+				     arg, func);
 }
 
 #if !defined(CONFIG_ARCH_HAS_WALK_MEMORY)
@@ -508,6 +525,7 @@ static int __is_ram(unsigned long pfn, unsigned long nr_pages, void *arg)
 {
 	return 1;
 }
+
 /*
  * This generic page_is_ram() returns true if specified address is
  * registered as System RAM in iomem_resource list.
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index 78f54932ea1d..e2f9d4feff40 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_clock.o = $(CC_FLAGS_FTRACE)
 endif
@@ -26,3 +27,4 @@ obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o
 obj-$(CONFIG_CPU_FREQ) += cpufreq.o
 obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o
 obj-$(CONFIG_MEMBARRIER) += membarrier.o
+obj-$(CONFIG_CPU_ISOLATION) += isolation.o
diff --git a/kernel/sched/autogroup.c b/kernel/sched/autogroup.c
index de6d7f4dfcb5..a43df5193538 100644
--- a/kernel/sched/autogroup.c
+++ b/kernel/sched/autogroup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "sched.h"
 
 #include <linux/proc_fs.h>
diff --git a/kernel/sched/autogroup.h b/kernel/sched/autogroup.h
index ce40c810cd5c..27cd22b89824 100644
--- a/kernel/sched/autogroup.h
+++ b/kernel/sched/autogroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_SCHED_AUTOGROUP
 
 #include <linux/kref.h>
diff --git a/kernel/sched/clock.c b/kernel/sched/clock.c
index ca0f8fc945c6..e086babe6c61 100644
--- a/kernel/sched/clock.c
+++ b/kernel/sched/clock.c
@@ -388,7 +388,7 @@ void sched_clock_tick(void)
 	if (unlikely(!sched_clock_running))
 		return;
 
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	scd = this_scd();
 	__scd_stamp(scd);
diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
index cc873075c3bd..2ddaec40956f 100644
--- a/kernel/sched/completion.c
+++ b/kernel/sched/completion.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generic wait-for-completion handler;
  *
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 136a76d80dbf..5b82a0073532 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -26,6 +26,7 @@
 #include <linux/profile.h>
 #include <linux/security.h>
 #include <linux/syscalls.h>
+#include <linux/sched/isolation.h>
 
 #include <asm/switch_to.h>
 #include <asm/tlb.h>
@@ -42,18 +43,21 @@
 
 DEFINE_PER_CPU_SHARED_ALIGNED(struct rq, runqueues);
 
+#if defined(CONFIG_SCHED_DEBUG) && defined(HAVE_JUMP_LABEL)
 /*
  * Debugging: various feature bits
+ *
+ * If SCHED_DEBUG is disabled, each compilation unit has its own copy of
+ * sysctl_sched_features, defined in sched.h, to allow constants propagation
+ * at compile time and compiler optimization based on features default.
  */
-
 #define SCHED_FEAT(name, enabled)	\
 	(1UL << __SCHED_FEAT_##name) * enabled |
-
 const_debug unsigned int sysctl_sched_features =
 #include "features.h"
 	0;
-
 #undef SCHED_FEAT
+#endif
 
 /*
  * Number of tasks to iterate in a single balance run.
@@ -83,9 +87,6 @@ __read_mostly int scheduler_running;
  */
 int sysctl_sched_rt_runtime = 950000;
 
-/* CPUs with isolated domains */
-cpumask_var_t cpu_isolated_map;
-
 /*
  * __task_rq_lock - lock the rq @p resides on.
  */
@@ -505,8 +506,7 @@ void resched_cpu(int cpu)
 	struct rq *rq = cpu_rq(cpu);
 	unsigned long flags;
 
-	if (!raw_spin_trylock_irqsave(&rq->lock, flags))
-		return;
+	raw_spin_lock_irqsave(&rq->lock, flags);
 	resched_curr(rq);
 	raw_spin_unlock_irqrestore(&rq->lock, flags);
 }
@@ -526,7 +526,7 @@ int get_nohz_timer_target(void)
 	int i, cpu = smp_processor_id();
 	struct sched_domain *sd;
 
-	if (!idle_cpu(cpu) && is_housekeeping_cpu(cpu))
+	if (!idle_cpu(cpu) && housekeeping_cpu(cpu, HK_FLAG_TIMER))
 		return cpu;
 
 	rcu_read_lock();
@@ -535,15 +535,15 @@ int get_nohz_timer_target(void)
 			if (cpu == i)
 				continue;
 
-			if (!idle_cpu(i) && is_housekeeping_cpu(i)) {
+			if (!idle_cpu(i) && housekeeping_cpu(i, HK_FLAG_TIMER)) {
 				cpu = i;
 				goto unlock;
 			}
 		}
 	}
 
-	if (!is_housekeeping_cpu(cpu))
-		cpu = housekeeping_any_cpu();
+	if (!housekeeping_cpu(cpu, HK_FLAG_TIMER))
+		cpu = housekeeping_any_cpu(HK_FLAG_TIMER);
 unlock:
 	rcu_read_unlock();
 	return cpu;
@@ -733,7 +733,7 @@ int tg_nop(struct task_group *tg, void *data)
 }
 #endif
 
-static void set_load_weight(struct task_struct *p)
+static void set_load_weight(struct task_struct *p, bool update_load)
 {
 	int prio = p->static_prio - MAX_RT_PRIO;
 	struct load_weight *load = &p->se.load;
@@ -747,8 +747,16 @@ static void set_load_weight(struct task_struct *p)
 		return;
 	}
 
-	load->weight = scale_load(sched_prio_to_weight[prio]);
-	load->inv_weight = sched_prio_to_wmult[prio];
+	/*
+	 * SCHED_OTHER tasks have to update their load when changing their
+	 * weight
+	 */
+	if (update_load && p->sched_class == &fair_sched_class) {
+		reweight_task(p, prio);
+	} else {
+		load->weight = scale_load(sched_prio_to_weight[prio]);
+		load->inv_weight = sched_prio_to_wmult[prio];
+	}
 }
 
 static inline void enqueue_task(struct rq *rq, struct task_struct *p, int flags)
@@ -1173,6 +1181,10 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 	WARN_ON_ONCE(debug_locks && !(lockdep_is_held(&p->pi_lock) ||
 				      lockdep_is_held(&task_rq(p)->lock)));
 #endif
+	/*
+	 * Clearly, migrating tasks to offline CPUs is a fairly daft thing.
+	 */
+	WARN_ON_ONCE(!cpu_online(new_cpu));
 #endif
 
 	trace_sched_migrate_task(p, new_cpu);
@@ -2354,7 +2366,7 @@ int sched_fork(unsigned long clone_flags, struct task_struct *p)
 			p->static_prio = NICE_TO_PRIO(0);
 
 		p->prio = p->normal_prio = __normal_prio(p);
-		set_load_weight(p);
+		set_load_weight(p, false);
 
 		/*
 		 * We don't need the reset flag anymore after the fork. It has
@@ -3801,7 +3813,7 @@ void set_user_nice(struct task_struct *p, long nice)
 		put_prev_task(rq, p);
 
 	p->static_prio = NICE_TO_PRIO(nice);
-	set_load_weight(p);
+	set_load_weight(p, true);
 	old_prio = p->prio;
 	p->prio = effective_prio(p);
 	delta = p->prio - old_prio;
@@ -3958,7 +3970,7 @@ static void __setscheduler_params(struct task_struct *p,
 	 */
 	p->rt_priority = attr->sched_priority;
 	p->normal_prio = normal_prio(p);
-	set_load_weight(p);
+	set_load_weight(p, true);
 }
 
 /* Actually do priority change: must hold pi & rq lock. */
@@ -4838,6 +4850,7 @@ int __sched _cond_resched(void)
 		preempt_schedule_common();
 		return 1;
 	}
+	rcu_all_qs();
 	return 0;
 }
 EXPORT_SYMBOL(_cond_resched);
@@ -5161,6 +5174,29 @@ void sched_show_task(struct task_struct *p)
 	show_stack(p, NULL);
 	put_task_stack(p);
 }
+EXPORT_SYMBOL_GPL(sched_show_task);
+
+static inline bool
+state_filter_match(unsigned long state_filter, struct task_struct *p)
+{
+	/* no filter, everything matches */
+	if (!state_filter)
+		return true;
+
+	/* filter, but doesn't match */
+	if (!(p->state & state_filter))
+		return false;
+
+	/*
+	 * When looking for TASK_UNINTERRUPTIBLE skip TASK_IDLE (allows
+	 * TASK_KILLABLE).
+	 */
+	if (state_filter == TASK_UNINTERRUPTIBLE && p->state == TASK_IDLE)
+		return false;
+
+	return true;
+}
+
 
 void show_state_filter(unsigned long state_filter)
 {
@@ -5184,7 +5220,7 @@ void show_state_filter(unsigned long state_filter)
 		 */
 		touch_nmi_watchdog();
 		touch_all_softlockup_watchdogs();
-		if (!state_filter || (p->state & state_filter))
+		if (state_filter_match(state_filter, p))
 			sched_show_task(p);
 	}
 
@@ -5700,10 +5736,6 @@ static inline void sched_init_smt(void) { }
 
 void __init sched_init_smp(void)
 {
-	cpumask_var_t non_isolated_cpus;
-
-	alloc_cpumask_var(&non_isolated_cpus, GFP_KERNEL);
-
 	sched_init_numa();
 
 	/*
@@ -5713,16 +5745,12 @@ void __init sched_init_smp(void)
 	 */
 	mutex_lock(&sched_domains_mutex);
 	sched_init_domains(cpu_active_mask);
-	cpumask_andnot(non_isolated_cpus, cpu_possible_mask, cpu_isolated_map);
-	if (cpumask_empty(non_isolated_cpus))
-		cpumask_set_cpu(smp_processor_id(), non_isolated_cpus);
 	mutex_unlock(&sched_domains_mutex);
 
 	/* Move init over to a non-isolated CPU */
-	if (set_cpus_allowed_ptr(current, non_isolated_cpus) < 0)
+	if (set_cpus_allowed_ptr(current, housekeeping_cpumask(HK_FLAG_DOMAIN)) < 0)
 		BUG();
 	sched_init_granularity();
-	free_cpumask_var(non_isolated_cpus);
 
 	init_sched_rt_class();
 	init_sched_dl_class();
@@ -5907,7 +5935,7 @@ void __init sched_init(void)
 		atomic_set(&rq->nr_iowait, 0);
 	}
 
-	set_load_weight(&init_task);
+	set_load_weight(&init_task, false);
 
 	/*
 	 * The boot idle thread does lazy MMU switching as well:
@@ -5926,9 +5954,6 @@ void __init sched_init(void)
 	calc_load_update = jiffies + LOAD_FREQ;
 
 #ifdef CONFIG_SMP
-	/* May be allocated at isolcpus cmdline parse time */
-	if (cpu_isolated_map == NULL)
-		zalloc_cpumask_var(&cpu_isolated_map, GFP_NOWAIT);
 	idle_thread_set_boot_cpu();
 	set_cpu_rq_start_time(smp_processor_id());
 #endif
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c
index f95ab29a45d0..44ab32a4fab6 100644
--- a/kernel/sched/cpuacct.c
+++ b/kernel/sched/cpuacct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/cgroup.h>
 #include <linux/slab.h>
 #include <linux/percpu.h>
diff --git a/kernel/sched/cpuacct.h b/kernel/sched/cpuacct.h
index ba72807c73d4..a8358a57a316 100644
--- a/kernel/sched/cpuacct.h
+++ b/kernel/sched/cpuacct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_CGROUP_CPUACCT
 
 extern void cpuacct_charge(struct task_struct *tsk, u64 cputime);
diff --git a/kernel/sched/cpudeadline.h b/kernel/sched/cpudeadline.h
index f7da8c55bba0..b010d26e108e 100644
--- a/kernel/sched/cpudeadline.h
+++ b/kernel/sched/cpudeadline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CPUDL_H
 #define _LINUX_CPUDL_H
 
diff --git a/kernel/sched/cpufreq_schedutil.c b/kernel/sched/cpufreq_schedutil.c
index 9209d83ecdcf..2f52ec0f1539 100644
--- a/kernel/sched/cpufreq_schedutil.c
+++ b/kernel/sched/cpufreq_schedutil.c
@@ -282,8 +282,12 @@ static void sugov_update_single(struct update_util_data *hook, u64 time,
 		 * Do not reduce the frequency if the CPU has not been idle
 		 * recently, as the reduction is likely to be premature then.
 		 */
-		if (busy && next_f < sg_policy->next_freq)
+		if (busy && next_f < sg_policy->next_freq) {
 			next_f = sg_policy->next_freq;
+
+			/* Reset cached freq as next_freq has changed */
+			sg_policy->cached_raw_freq = 0;
+		}
 	}
 	sugov_update_commit(sg_policy, time, next_f);
 }
@@ -649,6 +653,7 @@ static int sugov_start(struct cpufreq_policy *policy)
 		struct sugov_cpu *sg_cpu = &per_cpu(sugov_cpu, cpu);
 
 		memset(sg_cpu, 0, sizeof(*sg_cpu));
+		sg_cpu->cpu = cpu;
 		sg_cpu->sg_policy = sg_policy;
 		sg_cpu->flags = SCHED_CPUFREQ_RT;
 		sg_cpu->iowait_boost_max = policy->cpuinfo.max_freq;
@@ -714,11 +719,6 @@ struct cpufreq_governor *cpufreq_default_governor(void)
 
 static int __init sugov_register(void)
 {
-	int cpu;
-
-	for_each_possible_cpu(cpu)
-		per_cpu(sugov_cpu, cpu).cpu = cpu;
-
 	return cpufreq_register_governor(&schedutil_gov);
 }
 fs_initcall(sugov_register);
diff --git a/kernel/sched/cpupri.h b/kernel/sched/cpupri.h
index 63cbb9ca0496..bab050019071 100644
--- a/kernel/sched/cpupri.h
+++ b/kernel/sched/cpupri.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_CPUPRI_H
 #define _LINUX_CPUPRI_H
 
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 14d2dbf97c53..9be8b68a66da 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -259,8 +259,7 @@ static inline u64 account_other_time(u64 max)
 {
 	u64 accounted;
 
-	/* Shall be converted to a lockdep-enabled lightweight check */
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	accounted = steal_account_process_time(max);
 
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 0191ec7667c3..f349f7e98dec 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Deadline Scheduling Class (SCHED_DEADLINE)
  *
@@ -242,7 +243,7 @@ static void task_non_contending(struct task_struct *p)
 			if (p->state == TASK_DEAD)
 				sub_rq_bw(p->dl.dl_bw, &rq->dl);
 			raw_spin_lock(&dl_b->lock);
-			__dl_clear(dl_b, p->dl.dl_bw, dl_bw_cpus(task_cpu(p)));
+			__dl_sub(dl_b, p->dl.dl_bw, dl_bw_cpus(task_cpu(p)));
 			__dl_clear_params(p);
 			raw_spin_unlock(&dl_b->lock);
 		}
@@ -1209,7 +1210,7 @@ static enum hrtimer_restart inactive_task_timer(struct hrtimer *timer)
 		}
 
 		raw_spin_lock(&dl_b->lock);
-		__dl_clear(dl_b, p->dl.dl_bw, dl_bw_cpus(task_cpu(p)));
+		__dl_sub(dl_b, p->dl.dl_bw, dl_bw_cpus(task_cpu(p)));
 		raw_spin_unlock(&dl_b->lock);
 		__dl_clear_params(p);
 
@@ -1364,6 +1365,10 @@ enqueue_dl_entity(struct sched_dl_entity *dl_se,
 		update_dl_entity(dl_se, pi_se);
 	} else if (flags & ENQUEUE_REPLENISH) {
 		replenish_dl_entity(dl_se, pi_se);
+	} else if ((flags & ENQUEUE_RESTORE) &&
+		  dl_time_before(dl_se->deadline,
+				 rq_clock(rq_of_dl_rq(dl_rq_of_se(dl_se))))) {
+		setup_new_dl_entity(dl_se);
 	}
 
 	__enqueue_dl_entity(dl_se);
@@ -2166,7 +2171,7 @@ static void set_cpus_allowed_dl(struct task_struct *p,
 		 * until we complete the update.
 		 */
 		raw_spin_lock(&src_dl_b->lock);
-		__dl_clear(src_dl_b, p->dl.dl_bw, dl_bw_cpus(task_cpu(p)));
+		__dl_sub(src_dl_b, p->dl.dl_bw, dl_bw_cpus(task_cpu(p)));
 		raw_spin_unlock(&src_dl_b->lock);
 	}
 
@@ -2255,13 +2260,6 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p)
 
 		return;
 	}
-	/*
-	 * If p is boosted we already updated its params in
-	 * rt_mutex_setprio()->enqueue_task(..., ENQUEUE_REPLENISH),
-	 * p's deadline being now already after rq_clock(rq).
-	 */
-	if (dl_time_before(p->dl.deadline, rq_clock(rq)))
-		setup_new_dl_entity(&p->dl);
 
 	if (rq->curr != p) {
 #ifdef CONFIG_SMP
@@ -2451,7 +2449,7 @@ int sched_dl_overflow(struct task_struct *p, int policy,
 	if (dl_policy(policy) && !task_has_dl_policy(p) &&
 	    !__dl_overflow(dl_b, cpus, 0, new_bw)) {
 		if (hrtimer_active(&p->dl.inactive_timer))
-			__dl_clear(dl_b, p->dl.dl_bw, cpus);
+			__dl_sub(dl_b, p->dl.dl_bw, cpus);
 		__dl_add(dl_b, new_bw, cpus);
 		err = 0;
 	} else if (dl_policy(policy) && task_has_dl_policy(p) &&
@@ -2463,7 +2461,7 @@ int sched_dl_overflow(struct task_struct *p, int policy,
 		 * But this would require to set the task's "inactive
 		 * timer" when the task is not inactive.
 		 */
-		__dl_clear(dl_b, p->dl.dl_bw, cpus);
+		__dl_sub(dl_b, p->dl.dl_bw, cpus);
 		__dl_add(dl_b, new_bw, cpus);
 		dl_change_utilization(p, new_bw);
 		err = 0;
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 8e536d963652..1ca0130ed4f9 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -181,11 +181,16 @@ static const struct file_operations sched_feat_fops = {
 	.release	= single_release,
 };
 
+__read_mostly bool sched_debug_enabled;
+
 static __init int sched_init_debug(void)
 {
 	debugfs_create_file("sched_features", 0644, NULL, NULL,
 			&sched_feat_fops);
 
+	debugfs_create_bool("sched_debug", 0644, NULL,
+			&sched_debug_enabled);
+
 	return 0;
 }
 late_initcall(sched_init_debug);
@@ -436,9 +441,11 @@ static void print_cfs_group_stats(struct seq_file *m, int cpu, struct task_group
 		P_SCHEDSTAT(se->statistics.wait_count);
 	}
 	P(se->load.weight);
+	P(se->runnable_weight);
 #ifdef CONFIG_SMP
 	P(se->avg.load_avg);
 	P(se->avg.util_avg);
+	P(se->avg.runnable_load_avg);
 #endif
 
 #undef PN_SCHEDSTAT
@@ -461,8 +468,6 @@ static char *task_group_path(struct task_group *tg)
 }
 #endif
 
-static const char stat_nam[] = TASK_STATE_TO_CHAR_STR;
-
 static void
 print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
 {
@@ -555,16 +560,19 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 	SEQ_printf(m, "  .%-30s: %d\n", "nr_running", cfs_rq->nr_running);
 	SEQ_printf(m, "  .%-30s: %ld\n", "load", cfs_rq->load.weight);
 #ifdef CONFIG_SMP
+	SEQ_printf(m, "  .%-30s: %ld\n", "runnable_weight", cfs_rq->runnable_weight);
 	SEQ_printf(m, "  .%-30s: %lu\n", "load_avg",
 			cfs_rq->avg.load_avg);
 	SEQ_printf(m, "  .%-30s: %lu\n", "runnable_load_avg",
-			cfs_rq->runnable_load_avg);
+			cfs_rq->avg.runnable_load_avg);
 	SEQ_printf(m, "  .%-30s: %lu\n", "util_avg",
 			cfs_rq->avg.util_avg);
-	SEQ_printf(m, "  .%-30s: %ld\n", "removed_load_avg",
-			atomic_long_read(&cfs_rq->removed_load_avg));
-	SEQ_printf(m, "  .%-30s: %ld\n", "removed_util_avg",
-			atomic_long_read(&cfs_rq->removed_util_avg));
+	SEQ_printf(m, "  .%-30s: %ld\n", "removed.load_avg",
+			cfs_rq->removed.load_avg);
+	SEQ_printf(m, "  .%-30s: %ld\n", "removed.util_avg",
+			cfs_rq->removed.util_avg);
+	SEQ_printf(m, "  .%-30s: %ld\n", "removed.runnable_sum",
+			cfs_rq->removed.runnable_sum);
 #ifdef CONFIG_FAIR_GROUP_SCHED
 	SEQ_printf(m, "  .%-30s: %lu\n", "tg_load_avg_contrib",
 			cfs_rq->tg_load_avg_contrib);
@@ -1001,10 +1009,13 @@ void proc_sched_show_task(struct task_struct *p, struct pid_namespace *ns,
 		   "nr_involuntary_switches", (long long)p->nivcsw);
 
 	P(se.load.weight);
+	P(se.runnable_weight);
 #ifdef CONFIG_SMP
 	P(se.avg.load_sum);
+	P(se.avg.runnable_load_sum);
 	P(se.avg.util_sum);
 	P(se.avg.load_avg);
+	P(se.avg.runnable_load_avg);
 	P(se.avg.util_avg);
 	P(se.avg.last_update_time);
 #endif
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0a85641e62ce..0989676c50e9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Completely Fair Scheduling (CFS) Class (SCHED_NORMAL/SCHED_BATCH)
  *
@@ -32,6 +33,7 @@
 #include <linux/mempolicy.h>
 #include <linux/migrate.h>
 #include <linux/task_work.h>
+#include <linux/sched/isolation.h>
 
 #include <trace/events/sched.h>
 
@@ -716,13 +718,8 @@ void init_entity_runnable_average(struct sched_entity *se)
 {
 	struct sched_avg *sa = &se->avg;
 
-	sa->last_update_time = 0;
-	/*
-	 * sched_avg's period_contrib should be strictly less then 1024, so
-	 * we give it 1023 to make sure it is almost a period (1024us), and
-	 * will definitely be update (after enqueue).
-	 */
-	sa->period_contrib = 1023;
+	memset(sa, 0, sizeof(*sa));
+
 	/*
 	 * Tasks are intialized with full load to be seen as heavy tasks until
 	 * they get a chance to stabilize to their real load level.
@@ -730,13 +727,10 @@ void init_entity_runnable_average(struct sched_entity *se)
 	 * nothing has been attached to the task group yet.
 	 */
 	if (entity_is_task(se))
-		sa->load_avg = scale_load_down(se->load.weight);
-	sa->load_sum = sa->load_avg * LOAD_AVG_MAX;
-	/*
-	 * At this point, util_avg won't be used in select_task_rq_fair anyway
-	 */
-	sa->util_avg = 0;
-	sa->util_sum = 0;
+		sa->runnable_load_avg = sa->load_avg = scale_load_down(se->load.weight);
+
+	se->runnable_weight = se->load.weight;
+
 	/* when this task enqueue'ed, it will contribute to its cfs_rq's load_avg */
 }
 
@@ -784,7 +778,6 @@ void post_init_entity_util_avg(struct sched_entity *se)
 		} else {
 			sa->util_avg = cap;
 		}
-		sa->util_sum = sa->util_avg * LOAD_AVG_MAX;
 	}
 
 	if (entity_is_task(se)) {
@@ -2025,7 +2018,7 @@ static u64 numa_get_avg_runtime(struct task_struct *p, u64 *period)
 		delta = runtime - p->last_sum_exec_runtime;
 		*period = now - p->last_task_numa_placement;
 	} else {
-		delta = p->se.avg.load_sum / p->se.load.weight;
+		delta = p->se.avg.load_sum;
 		*period = LOAD_AVG_MAX;
 	}
 
@@ -2692,18 +2685,226 @@ account_entity_dequeue(struct cfs_rq *cfs_rq, struct sched_entity *se)
 	cfs_rq->nr_running--;
 }
 
+/*
+ * Signed add and clamp on underflow.
+ *
+ * Explicitly do a load-store to ensure the intermediate value never hits
+ * memory. This allows lockless observations without ever seeing the negative
+ * values.
+ */
+#define add_positive(_ptr, _val) do {                           \
+	typeof(_ptr) ptr = (_ptr);                              \
+	typeof(_val) val = (_val);                              \
+	typeof(*ptr) res, var = READ_ONCE(*ptr);                \
+								\
+	res = var + val;                                        \
+								\
+	if (val < 0 && res > var)                               \
+		res = 0;                                        \
+								\
+	WRITE_ONCE(*ptr, res);                                  \
+} while (0)
+
+/*
+ * Unsigned subtract and clamp on underflow.
+ *
+ * Explicitly do a load-store to ensure the intermediate value never hits
+ * memory. This allows lockless observations without ever seeing the negative
+ * values.
+ */
+#define sub_positive(_ptr, _val) do {				\
+	typeof(_ptr) ptr = (_ptr);				\
+	typeof(*ptr) val = (_val);				\
+	typeof(*ptr) res, var = READ_ONCE(*ptr);		\
+	res = var - val;					\
+	if (res > var)						\
+		res = 0;					\
+	WRITE_ONCE(*ptr, res);					\
+} while (0)
+
+#ifdef CONFIG_SMP
+/*
+ * XXX we want to get rid of these helpers and use the full load resolution.
+ */
+static inline long se_weight(struct sched_entity *se)
+{
+	return scale_load_down(se->load.weight);
+}
+
+static inline long se_runnable(struct sched_entity *se)
+{
+	return scale_load_down(se->runnable_weight);
+}
+
+static inline void
+enqueue_runnable_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
+{
+	cfs_rq->runnable_weight += se->runnable_weight;
+
+	cfs_rq->avg.runnable_load_avg += se->avg.runnable_load_avg;
+	cfs_rq->avg.runnable_load_sum += se_runnable(se) * se->avg.runnable_load_sum;
+}
+
+static inline void
+dequeue_runnable_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
+{
+	cfs_rq->runnable_weight -= se->runnable_weight;
+
+	sub_positive(&cfs_rq->avg.runnable_load_avg, se->avg.runnable_load_avg);
+	sub_positive(&cfs_rq->avg.runnable_load_sum,
+		     se_runnable(se) * se->avg.runnable_load_sum);
+}
+
+static inline void
+enqueue_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
+{
+	cfs_rq->avg.load_avg += se->avg.load_avg;
+	cfs_rq->avg.load_sum += se_weight(se) * se->avg.load_sum;
+}
+
+static inline void
+dequeue_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
+{
+	sub_positive(&cfs_rq->avg.load_avg, se->avg.load_avg);
+	sub_positive(&cfs_rq->avg.load_sum, se_weight(se) * se->avg.load_sum);
+}
+#else
+static inline void
+enqueue_runnable_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) { }
+static inline void
+dequeue_runnable_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) { }
+static inline void
+enqueue_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) { }
+static inline void
+dequeue_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) { }
+#endif
+
+static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
+			    unsigned long weight, unsigned long runnable)
+{
+	if (se->on_rq) {
+		/* commit outstanding execution time */
+		if (cfs_rq->curr == se)
+			update_curr(cfs_rq);
+		account_entity_dequeue(cfs_rq, se);
+		dequeue_runnable_load_avg(cfs_rq, se);
+	}
+	dequeue_load_avg(cfs_rq, se);
+
+	se->runnable_weight = runnable;
+	update_load_set(&se->load, weight);
+
+#ifdef CONFIG_SMP
+	do {
+		u32 divider = LOAD_AVG_MAX - 1024 + se->avg.period_contrib;
+
+		se->avg.load_avg = div_u64(se_weight(se) * se->avg.load_sum, divider);
+		se->avg.runnable_load_avg =
+			div_u64(se_runnable(se) * se->avg.runnable_load_sum, divider);
+	} while (0);
+#endif
+
+	enqueue_load_avg(cfs_rq, se);
+	if (se->on_rq) {
+		account_entity_enqueue(cfs_rq, se);
+		enqueue_runnable_load_avg(cfs_rq, se);
+	}
+}
+
+void reweight_task(struct task_struct *p, int prio)
+{
+	struct sched_entity *se = &p->se;
+	struct cfs_rq *cfs_rq = cfs_rq_of(se);
+	struct load_weight *load = &se->load;
+	unsigned long weight = scale_load(sched_prio_to_weight[prio]);
+
+	reweight_entity(cfs_rq, se, weight, weight);
+	load->inv_weight = sched_prio_to_wmult[prio];
+}
+
 #ifdef CONFIG_FAIR_GROUP_SCHED
 # ifdef CONFIG_SMP
-static long calc_cfs_shares(struct cfs_rq *cfs_rq, struct task_group *tg)
+/*
+ * All this does is approximate the hierarchical proportion which includes that
+ * global sum we all love to hate.
+ *
+ * That is, the weight of a group entity, is the proportional share of the
+ * group weight based on the group runqueue weights. That is:
+ *
+ *                     tg->weight * grq->load.weight
+ *   ge->load.weight = -----------------------------               (1)
+ *			  \Sum grq->load.weight
+ *
+ * Now, because computing that sum is prohibitively expensive to compute (been
+ * there, done that) we approximate it with this average stuff. The average
+ * moves slower and therefore the approximation is cheaper and more stable.
+ *
+ * So instead of the above, we substitute:
+ *
+ *   grq->load.weight -> grq->avg.load_avg                         (2)
+ *
+ * which yields the following:
+ *
+ *                     tg->weight * grq->avg.load_avg
+ *   ge->load.weight = ------------------------------              (3)
+ *				tg->load_avg
+ *
+ * Where: tg->load_avg ~= \Sum grq->avg.load_avg
+ *
+ * That is shares_avg, and it is right (given the approximation (2)).
+ *
+ * The problem with it is that because the average is slow -- it was designed
+ * to be exactly that of course -- this leads to transients in boundary
+ * conditions. In specific, the case where the group was idle and we start the
+ * one task. It takes time for our CPU's grq->avg.load_avg to build up,
+ * yielding bad latency etc..
+ *
+ * Now, in that special case (1) reduces to:
+ *
+ *                     tg->weight * grq->load.weight
+ *   ge->load.weight = ----------------------------- = tg->weight   (4)
+ *			    grp->load.weight
+ *
+ * That is, the sum collapses because all other CPUs are idle; the UP scenario.
+ *
+ * So what we do is modify our approximation (3) to approach (4) in the (near)
+ * UP case, like:
+ *
+ *   ge->load.weight =
+ *
+ *              tg->weight * grq->load.weight
+ *     ---------------------------------------------------         (5)
+ *     tg->load_avg - grq->avg.load_avg + grq->load.weight
+ *
+ * But because grq->load.weight can drop to 0, resulting in a divide by zero,
+ * we need to use grq->avg.load_avg as its lower bound, which then gives:
+ *
+ *
+ *                     tg->weight * grq->load.weight
+ *   ge->load.weight = -----------------------------		   (6)
+ *				tg_load_avg'
+ *
+ * Where:
+ *
+ *   tg_load_avg' = tg->load_avg - grq->avg.load_avg +
+ *                  max(grq->load.weight, grq->avg.load_avg)
+ *
+ * And that is shares_weight and is icky. In the (near) UP case it approaches
+ * (4) while in the normal case it approaches (3). It consistently
+ * overestimates the ge->load.weight and therefore:
+ *
+ *   \Sum ge->load.weight >= tg->weight
+ *
+ * hence icky!
+ */
+static long calc_group_shares(struct cfs_rq *cfs_rq)
 {
-	long tg_weight, load, shares;
+	long tg_weight, tg_shares, load, shares;
+	struct task_group *tg = cfs_rq->tg;
 
-	/*
-	 * This really should be: cfs_rq->avg.load_avg, but instead we use
-	 * cfs_rq->load.weight, which is its upper bound. This helps ramp up
-	 * the shares for small weight interactive tasks.
-	 */
-	load = scale_load_down(cfs_rq->load.weight);
+	tg_shares = READ_ONCE(tg->shares);
+
+	load = max(scale_load_down(cfs_rq->load.weight), cfs_rq->avg.load_avg);
 
 	tg_weight = atomic_long_read(&tg->load_avg);
 
@@ -2711,7 +2912,7 @@ static long calc_cfs_shares(struct cfs_rq *cfs_rq, struct task_group *tg)
 	tg_weight -= cfs_rq->tg_load_avg_contrib;
 	tg_weight += load;
 
-	shares = (tg->shares * load);
+	shares = (tg_shares * load);
 	if (tg_weight)
 		shares /= tg_weight;
 
@@ -2727,63 +2928,86 @@ static long calc_cfs_shares(struct cfs_rq *cfs_rq, struct task_group *tg)
 	 * case no task is runnable on a CPU MIN_SHARES=2 should be returned
 	 * instead of 0.
 	 */
-	if (shares < MIN_SHARES)
-		shares = MIN_SHARES;
-	if (shares > tg->shares)
-		shares = tg->shares;
-
-	return shares;
+	return clamp_t(long, shares, MIN_SHARES, tg_shares);
 }
-# else /* CONFIG_SMP */
-static inline long calc_cfs_shares(struct cfs_rq *cfs_rq, struct task_group *tg)
-{
-	return tg->shares;
-}
-# endif /* CONFIG_SMP */
 
-static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
-			    unsigned long weight)
+/*
+ * This calculates the effective runnable weight for a group entity based on
+ * the group entity weight calculated above.
+ *
+ * Because of the above approximation (2), our group entity weight is
+ * an load_avg based ratio (3). This means that it includes blocked load and
+ * does not represent the runnable weight.
+ *
+ * Approximate the group entity's runnable weight per ratio from the group
+ * runqueue:
+ *
+ *					     grq->avg.runnable_load_avg
+ *   ge->runnable_weight = ge->load.weight * -------------------------- (7)
+ *						 grq->avg.load_avg
+ *
+ * However, analogous to above, since the avg numbers are slow, this leads to
+ * transients in the from-idle case. Instead we use:
+ *
+ *   ge->runnable_weight = ge->load.weight *
+ *
+ *		max(grq->avg.runnable_load_avg, grq->runnable_weight)
+ *		-----------------------------------------------------	(8)
+ *		      max(grq->avg.load_avg, grq->load.weight)
+ *
+ * Where these max() serve both to use the 'instant' values to fix the slow
+ * from-idle and avoid the /0 on to-idle, similar to (6).
+ */
+static long calc_group_runnable(struct cfs_rq *cfs_rq, long shares)
 {
-	if (se->on_rq) {
-		/* commit outstanding execution time */
-		if (cfs_rq->curr == se)
-			update_curr(cfs_rq);
-		account_entity_dequeue(cfs_rq, se);
-	}
+	long runnable, load_avg;
 
-	update_load_set(&se->load, weight);
+	load_avg = max(cfs_rq->avg.load_avg,
+		       scale_load_down(cfs_rq->load.weight));
 
-	if (se->on_rq)
-		account_entity_enqueue(cfs_rq, se);
+	runnable = max(cfs_rq->avg.runnable_load_avg,
+		       scale_load_down(cfs_rq->runnable_weight));
+
+	runnable *= shares;
+	if (load_avg)
+		runnable /= load_avg;
+
+	return clamp_t(long, runnable, MIN_SHARES, shares);
 }
+# endif /* CONFIG_SMP */
 
 static inline int throttled_hierarchy(struct cfs_rq *cfs_rq);
 
-static void update_cfs_shares(struct sched_entity *se)
+/*
+ * Recomputes the group entity based on the current state of its group
+ * runqueue.
+ */
+static void update_cfs_group(struct sched_entity *se)
 {
-	struct cfs_rq *cfs_rq = group_cfs_rq(se);
-	struct task_group *tg;
-	long shares;
+	struct cfs_rq *gcfs_rq = group_cfs_rq(se);
+	long shares, runnable;
 
-	if (!cfs_rq)
+	if (!gcfs_rq)
 		return;
 
-	if (throttled_hierarchy(cfs_rq))
+	if (throttled_hierarchy(gcfs_rq))
 		return;
 
-	tg = cfs_rq->tg;
-
 #ifndef CONFIG_SMP
-	if (likely(se->load.weight == tg->shares))
+	runnable = shares = READ_ONCE(gcfs_rq->tg->shares);
+
+	if (likely(se->load.weight == shares))
 		return;
+#else
+	shares   = calc_group_shares(gcfs_rq);
+	runnable = calc_group_runnable(gcfs_rq, shares);
 #endif
-	shares = calc_cfs_shares(cfs_rq, tg);
 
-	reweight_entity(cfs_rq_of(se), se, shares);
+	reweight_entity(cfs_rq_of(se), se, shares, runnable);
 }
 
 #else /* CONFIG_FAIR_GROUP_SCHED */
-static inline void update_cfs_shares(struct sched_entity *se)
+static inline void update_cfs_group(struct sched_entity *se)
 {
 }
 #endif /* CONFIG_FAIR_GROUP_SCHED */
@@ -2892,7 +3116,7 @@ static u32 __accumulate_pelt_segments(u64 periods, u32 d1, u32 d3)
  */
 static __always_inline u32
 accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
-	       unsigned long weight, int running, struct cfs_rq *cfs_rq)
+	       unsigned long load, unsigned long runnable, int running)
 {
 	unsigned long scale_freq, scale_cpu;
 	u32 contrib = (u32)delta; /* p == 0 -> delta < 1024 */
@@ -2909,10 +3133,8 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
 	 */
 	if (periods) {
 		sa->load_sum = decay_load(sa->load_sum, periods);
-		if (cfs_rq) {
-			cfs_rq->runnable_load_sum =
-				decay_load(cfs_rq->runnable_load_sum, periods);
-		}
+		sa->runnable_load_sum =
+			decay_load(sa->runnable_load_sum, periods);
 		sa->util_sum = decay_load((u64)(sa->util_sum), periods);
 
 		/*
@@ -2925,11 +3147,10 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
 	sa->period_contrib = delta;
 
 	contrib = cap_scale(contrib, scale_freq);
-	if (weight) {
-		sa->load_sum += weight * contrib;
-		if (cfs_rq)
-			cfs_rq->runnable_load_sum += weight * contrib;
-	}
+	if (load)
+		sa->load_sum += load * contrib;
+	if (runnable)
+		sa->runnable_load_sum += runnable * contrib;
 	if (running)
 		sa->util_sum += contrib * scale_cpu;
 
@@ -2965,8 +3186,8 @@ accumulate_sum(u64 delta, int cpu, struct sched_avg *sa,
  *            = u_0 + u_1*y + u_2*y^2 + ... [re-labeling u_i --> u_{i+1}]
  */
 static __always_inline int
-___update_load_avg(u64 now, int cpu, struct sched_avg *sa,
-		  unsigned long weight, int running, struct cfs_rq *cfs_rq)
+___update_load_sum(u64 now, int cpu, struct sched_avg *sa,
+		  unsigned long load, unsigned long runnable, int running)
 {
 	u64 delta;
 
@@ -2999,8 +3220,8 @@ ___update_load_avg(u64 now, int cpu, struct sched_avg *sa,
 	 * this happens during idle_balance() which calls
 	 * update_blocked_averages()
 	 */
-	if (!weight)
-		running = 0;
+	if (!load)
+		runnable = running = 0;
 
 	/*
 	 * Now we know we crossed measurement unit boundaries. The *_avg
@@ -3009,63 +3230,96 @@ ___update_load_avg(u64 now, int cpu, struct sched_avg *sa,
 	 * Step 1: accumulate *_sum since last_update_time. If we haven't
 	 * crossed period boundaries, finish.
 	 */
-	if (!accumulate_sum(delta, cpu, sa, weight, running, cfs_rq))
+	if (!accumulate_sum(delta, cpu, sa, load, runnable, running))
 		return 0;
 
+	return 1;
+}
+
+static __always_inline void
+___update_load_avg(struct sched_avg *sa, unsigned long load, unsigned long runnable)
+{
+	u32 divider = LOAD_AVG_MAX - 1024 + sa->period_contrib;
+
 	/*
 	 * Step 2: update *_avg.
 	 */
-	sa->load_avg = div_u64(sa->load_sum, LOAD_AVG_MAX - 1024 + sa->period_contrib);
-	if (cfs_rq) {
-		cfs_rq->runnable_load_avg =
-			div_u64(cfs_rq->runnable_load_sum, LOAD_AVG_MAX - 1024 + sa->period_contrib);
-	}
-	sa->util_avg = sa->util_sum / (LOAD_AVG_MAX - 1024 + sa->period_contrib);
-
-	return 1;
+	sa->load_avg = div_u64(load * sa->load_sum, divider);
+	sa->runnable_load_avg =	div_u64(runnable * sa->runnable_load_sum, divider);
+	sa->util_avg = sa->util_sum / divider;
 }
 
+/*
+ * sched_entity:
+ *
+ *   task:
+ *     se_runnable() == se_weight()
+ *
+ *   group: [ see update_cfs_group() ]
+ *     se_weight()   = tg->weight * grq->load_avg / tg->load_avg
+ *     se_runnable() = se_weight(se) * grq->runnable_load_avg / grq->load_avg
+ *
+ *   load_sum := runnable_sum
+ *   load_avg = se_weight(se) * runnable_avg
+ *
+ *   runnable_load_sum := runnable_sum
+ *   runnable_load_avg = se_runnable(se) * runnable_avg
+ *
+ * XXX collapse load_sum and runnable_load_sum
+ *
+ * cfq_rs:
+ *
+ *   load_sum = \Sum se_weight(se) * se->avg.load_sum
+ *   load_avg = \Sum se->avg.load_avg
+ *
+ *   runnable_load_sum = \Sum se_runnable(se) * se->avg.runnable_load_sum
+ *   runnable_load_avg = \Sum se->avg.runable_load_avg
+ */
+
 static int
 __update_load_avg_blocked_se(u64 now, int cpu, struct sched_entity *se)
 {
-	return ___update_load_avg(now, cpu, &se->avg, 0, 0, NULL);
+	if (entity_is_task(se))
+		se->runnable_weight = se->load.weight;
+
+	if (___update_load_sum(now, cpu, &se->avg, 0, 0, 0)) {
+		___update_load_avg(&se->avg, se_weight(se), se_runnable(se));
+		return 1;
+	}
+
+	return 0;
 }
 
 static int
 __update_load_avg_se(u64 now, int cpu, struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
-	return ___update_load_avg(now, cpu, &se->avg,
-				  se->on_rq * scale_load_down(se->load.weight),
-				  cfs_rq->curr == se, NULL);
+	if (entity_is_task(se))
+		se->runnable_weight = se->load.weight;
+
+	if (___update_load_sum(now, cpu, &se->avg, !!se->on_rq, !!se->on_rq,
+				cfs_rq->curr == se)) {
+
+		___update_load_avg(&se->avg, se_weight(se), se_runnable(se));
+		return 1;
+	}
+
+	return 0;
 }
 
 static int
 __update_load_avg_cfs_rq(u64 now, int cpu, struct cfs_rq *cfs_rq)
 {
-	return ___update_load_avg(now, cpu, &cfs_rq->avg,
-			scale_load_down(cfs_rq->load.weight),
-			cfs_rq->curr != NULL, cfs_rq);
-}
+	if (___update_load_sum(now, cpu, &cfs_rq->avg,
+				scale_load_down(cfs_rq->load.weight),
+				scale_load_down(cfs_rq->runnable_weight),
+				cfs_rq->curr != NULL)) {
 
-/*
- * Signed add and clamp on underflow.
- *
- * Explicitly do a load-store to ensure the intermediate value never hits
- * memory. This allows lockless observations without ever seeing the negative
- * values.
- */
-#define add_positive(_ptr, _val) do {                           \
-	typeof(_ptr) ptr = (_ptr);                              \
-	typeof(_val) val = (_val);                              \
-	typeof(*ptr) res, var = READ_ONCE(*ptr);                \
-								\
-	res = var + val;                                        \
-								\
-	if (val < 0 && res > var)                               \
-		res = 0;                                        \
-								\
-	WRITE_ONCE(*ptr, res);                                  \
-} while (0)
+		___update_load_avg(&cfs_rq->avg, 1, 1);
+		return 1;
+	}
+
+	return 0;
+}
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
 /**
@@ -3148,11 +3402,77 @@ void set_task_rq_fair(struct sched_entity *se,
 	se->avg.last_update_time = n_last_update_time;
 }
 
-/* Take into account change of utilization of a child task group */
+
+/*
+ * When on migration a sched_entity joins/leaves the PELT hierarchy, we need to
+ * propagate its contribution. The key to this propagation is the invariant
+ * that for each group:
+ *
+ *   ge->avg == grq->avg						(1)
+ *
+ * _IFF_ we look at the pure running and runnable sums. Because they
+ * represent the very same entity, just at different points in the hierarchy.
+ *
+ *
+ * Per the above update_tg_cfs_util() is trivial (and still 'wrong') and
+ * simply copies the running sum over.
+ *
+ * However, update_tg_cfs_runnable() is more complex. So we have:
+ *
+ *   ge->avg.load_avg = ge->load.weight * ge->avg.runnable_avg		(2)
+ *
+ * And since, like util, the runnable part should be directly transferable,
+ * the following would _appear_ to be the straight forward approach:
+ *
+ *   grq->avg.load_avg = grq->load.weight * grq->avg.running_avg	(3)
+ *
+ * And per (1) we have:
+ *
+ *   ge->avg.running_avg == grq->avg.running_avg
+ *
+ * Which gives:
+ *
+ *                      ge->load.weight * grq->avg.load_avg
+ *   ge->avg.load_avg = -----------------------------------		(4)
+ *                               grq->load.weight
+ *
+ * Except that is wrong!
+ *
+ * Because while for entities historical weight is not important and we
+ * really only care about our future and therefore can consider a pure
+ * runnable sum, runqueues can NOT do this.
+ *
+ * We specifically want runqueues to have a load_avg that includes
+ * historical weights. Those represent the blocked load, the load we expect
+ * to (shortly) return to us. This only works by keeping the weights as
+ * integral part of the sum. We therefore cannot decompose as per (3).
+ *
+ * OK, so what then?
+ *
+ *
+ * Another way to look at things is:
+ *
+ *   grq->avg.load_avg = \Sum se->avg.load_avg
+ *
+ * Therefore, per (2):
+ *
+ *   grq->avg.load_avg = \Sum se->load.weight * se->avg.runnable_avg
+ *
+ * And the very thing we're propagating is a change in that sum (someone
+ * joined/left). So we can easily know the runnable change, which would be, per
+ * (2) the already tracked se->load_avg divided by the corresponding
+ * se->weight.
+ *
+ * Basically (4) but in differential form:
+ *
+ *   d(runnable_avg) += se->avg.load_avg / se->load.weight
+ *								   (5)
+ *   ge->avg.load_avg += ge->load.weight * d(runnable_avg)
+ */
+
 static inline void
-update_tg_cfs_util(struct cfs_rq *cfs_rq, struct sched_entity *se)
+update_tg_cfs_util(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq *gcfs_rq)
 {
-	struct cfs_rq *gcfs_rq = group_cfs_rq(se);
 	long delta = gcfs_rq->avg.util_avg - se->avg.util_avg;
 
 	/* Nothing to update */
@@ -3168,102 +3488,65 @@ update_tg_cfs_util(struct cfs_rq *cfs_rq, struct sched_entity *se)
 	cfs_rq->avg.util_sum = cfs_rq->avg.util_avg * LOAD_AVG_MAX;
 }
 
-/* Take into account change of load of a child task group */
 static inline void
-update_tg_cfs_load(struct cfs_rq *cfs_rq, struct sched_entity *se)
+update_tg_cfs_runnable(struct cfs_rq *cfs_rq, struct sched_entity *se, struct cfs_rq *gcfs_rq)
 {
-	struct cfs_rq *gcfs_rq = group_cfs_rq(se);
-	long delta, load = gcfs_rq->avg.load_avg;
+	long runnable_sum = gcfs_rq->prop_runnable_sum;
+	long runnable_load_avg, load_avg;
+	s64 runnable_load_sum, load_sum;
 
-	/*
-	 * If the load of group cfs_rq is null, the load of the
-	 * sched_entity will also be null so we can skip the formula
-	 */
-	if (load) {
-		long tg_load;
+	if (!runnable_sum)
+		return;
 
-		/* Get tg's load and ensure tg_load > 0 */
-		tg_load = atomic_long_read(&gcfs_rq->tg->load_avg) + 1;
+	gcfs_rq->prop_runnable_sum = 0;
 
-		/* Ensure tg_load >= load and updated with current load*/
-		tg_load -= gcfs_rq->tg_load_avg_contrib;
-		tg_load += load;
+	load_sum = (s64)se_weight(se) * runnable_sum;
+	load_avg = div_s64(load_sum, LOAD_AVG_MAX);
 
-		/*
-		 * We need to compute a correction term in the case that the
-		 * task group is consuming more CPU than a task of equal
-		 * weight. A task with a weight equals to tg->shares will have
-		 * a load less or equal to scale_load_down(tg->shares).
-		 * Similarly, the sched_entities that represent the task group
-		 * at parent level, can't have a load higher than
-		 * scale_load_down(tg->shares). And the Sum of sched_entities'
-		 * load must be <= scale_load_down(tg->shares).
-		 */
-		if (tg_load > scale_load_down(gcfs_rq->tg->shares)) {
-			/* scale gcfs_rq's load into tg's shares*/
-			load *= scale_load_down(gcfs_rq->tg->shares);
-			load /= tg_load;
-		}
-	}
+	add_positive(&se->avg.load_sum, runnable_sum);
+	add_positive(&se->avg.load_avg, load_avg);
 
-	delta = load - se->avg.load_avg;
+	add_positive(&cfs_rq->avg.load_avg, load_avg);
+	add_positive(&cfs_rq->avg.load_sum, load_sum);
 
-	/* Nothing to update */
-	if (!delta)
-		return;
+	runnable_load_sum = (s64)se_runnable(se) * runnable_sum;
+	runnable_load_avg = div_s64(runnable_load_sum, LOAD_AVG_MAX);
 
-	/* Set new sched_entity's load */
-	se->avg.load_avg = load;
-	se->avg.load_sum = se->avg.load_avg * LOAD_AVG_MAX;
+	add_positive(&se->avg.runnable_load_sum, runnable_sum);
+	add_positive(&se->avg.runnable_load_avg, runnable_load_avg);
 
-	/* Update parent cfs_rq load */
-	add_positive(&cfs_rq->avg.load_avg, delta);
-	cfs_rq->avg.load_sum = cfs_rq->avg.load_avg * LOAD_AVG_MAX;
-
-	/*
-	 * If the sched_entity is already enqueued, we also have to update the
-	 * runnable load avg.
-	 */
 	if (se->on_rq) {
-		/* Update parent cfs_rq runnable_load_avg */
-		add_positive(&cfs_rq->runnable_load_avg, delta);
-		cfs_rq->runnable_load_sum = cfs_rq->runnable_load_avg * LOAD_AVG_MAX;
+		add_positive(&cfs_rq->avg.runnable_load_avg, runnable_load_avg);
+		add_positive(&cfs_rq->avg.runnable_load_sum, runnable_load_sum);
 	}
 }
 
-static inline void set_tg_cfs_propagate(struct cfs_rq *cfs_rq)
+static inline void add_tg_cfs_propagate(struct cfs_rq *cfs_rq, long runnable_sum)
 {
-	cfs_rq->propagate_avg = 1;
-}
-
-static inline int test_and_clear_tg_cfs_propagate(struct sched_entity *se)
-{
-	struct cfs_rq *cfs_rq = group_cfs_rq(se);
-
-	if (!cfs_rq->propagate_avg)
-		return 0;
-
-	cfs_rq->propagate_avg = 0;
-	return 1;
+	cfs_rq->propagate = 1;
+	cfs_rq->prop_runnable_sum += runnable_sum;
 }
 
 /* Update task and its cfs_rq load average */
 static inline int propagate_entity_load_avg(struct sched_entity *se)
 {
-	struct cfs_rq *cfs_rq;
+	struct cfs_rq *cfs_rq, *gcfs_rq;
 
 	if (entity_is_task(se))
 		return 0;
 
-	if (!test_and_clear_tg_cfs_propagate(se))
+	gcfs_rq = group_cfs_rq(se);
+	if (!gcfs_rq->propagate)
 		return 0;
 
+	gcfs_rq->propagate = 0;
+
 	cfs_rq = cfs_rq_of(se);
 
-	set_tg_cfs_propagate(cfs_rq);
+	add_tg_cfs_propagate(cfs_rq, gcfs_rq->prop_runnable_sum);
 
-	update_tg_cfs_util(cfs_rq, se);
-	update_tg_cfs_load(cfs_rq, se);
+	update_tg_cfs_util(cfs_rq, se, gcfs_rq);
+	update_tg_cfs_runnable(cfs_rq, se, gcfs_rq);
 
 	return 1;
 }
@@ -3287,7 +3570,7 @@ static inline bool skip_blocked_update(struct sched_entity *se)
 	 * If there is a pending propagation, we have to update the load and
 	 * the utilization of the sched_entity:
 	 */
-	if (gcfs_rq->propagate_avg)
+	if (gcfs_rq->propagate)
 		return false;
 
 	/*
@@ -3307,27 +3590,10 @@ static inline int propagate_entity_load_avg(struct sched_entity *se)
 	return 0;
 }
 
-static inline void set_tg_cfs_propagate(struct cfs_rq *cfs_rq) {}
+static inline void add_tg_cfs_propagate(struct cfs_rq *cfs_rq, long runnable_sum) {}
 
 #endif /* CONFIG_FAIR_GROUP_SCHED */
 
-/*
- * Unsigned subtract and clamp on underflow.
- *
- * Explicitly do a load-store to ensure the intermediate value never hits
- * memory. This allows lockless observations without ever seeing the negative
- * values.
- */
-#define sub_positive(_ptr, _val) do {				\
-	typeof(_ptr) ptr = (_ptr);				\
-	typeof(*ptr) val = (_val);				\
-	typeof(*ptr) res, var = READ_ONCE(*ptr);		\
-	res = var - val;					\
-	if (res > var)						\
-		res = 0;					\
-	WRITE_ONCE(*ptr, res);					\
-} while (0)
-
 /**
  * update_cfs_rq_load_avg - update the cfs_rq's load/util averages
  * @now: current time, as per cfs_rq_clock_task()
@@ -3347,65 +3613,45 @@ static inline void set_tg_cfs_propagate(struct cfs_rq *cfs_rq) {}
 static inline int
 update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 {
+	unsigned long removed_load = 0, removed_util = 0, removed_runnable_sum = 0;
 	struct sched_avg *sa = &cfs_rq->avg;
-	int decayed, removed_load = 0, removed_util = 0;
+	int decayed = 0;
+
+	if (cfs_rq->removed.nr) {
+		unsigned long r;
+		u32 divider = LOAD_AVG_MAX - 1024 + sa->period_contrib;
 
-	if (atomic_long_read(&cfs_rq->removed_load_avg)) {
-		s64 r = atomic_long_xchg(&cfs_rq->removed_load_avg, 0);
+		raw_spin_lock(&cfs_rq->removed.lock);
+		swap(cfs_rq->removed.util_avg, removed_util);
+		swap(cfs_rq->removed.load_avg, removed_load);
+		swap(cfs_rq->removed.runnable_sum, removed_runnable_sum);
+		cfs_rq->removed.nr = 0;
+		raw_spin_unlock(&cfs_rq->removed.lock);
+
+		r = removed_load;
 		sub_positive(&sa->load_avg, r);
-		sub_positive(&sa->load_sum, r * LOAD_AVG_MAX);
-		removed_load = 1;
-		set_tg_cfs_propagate(cfs_rq);
-	}
+		sub_positive(&sa->load_sum, r * divider);
 
-	if (atomic_long_read(&cfs_rq->removed_util_avg)) {
-		long r = atomic_long_xchg(&cfs_rq->removed_util_avg, 0);
+		r = removed_util;
 		sub_positive(&sa->util_avg, r);
-		sub_positive(&sa->util_sum, r * LOAD_AVG_MAX);
-		removed_util = 1;
-		set_tg_cfs_propagate(cfs_rq);
+		sub_positive(&sa->util_sum, r * divider);
+
+		add_tg_cfs_propagate(cfs_rq, -(long)removed_runnable_sum);
+
+		decayed = 1;
 	}
 
-	decayed = __update_load_avg_cfs_rq(now, cpu_of(rq_of(cfs_rq)), cfs_rq);
+	decayed |= __update_load_avg_cfs_rq(now, cpu_of(rq_of(cfs_rq)), cfs_rq);
 
 #ifndef CONFIG_64BIT
 	smp_wmb();
 	cfs_rq->load_last_update_time_copy = sa->last_update_time;
 #endif
 
-	if (decayed || removed_util)
+	if (decayed)
 		cfs_rq_util_change(cfs_rq);
 
-	return decayed || removed_load;
-}
-
-/*
- * Optional action to be done while updating the load average
- */
-#define UPDATE_TG	0x1
-#define SKIP_AGE_LOAD	0x2
-
-/* Update task and its cfs_rq load average */
-static inline void update_load_avg(struct sched_entity *se, int flags)
-{
-	struct cfs_rq *cfs_rq = cfs_rq_of(se);
-	u64 now = cfs_rq_clock_task(cfs_rq);
-	struct rq *rq = rq_of(cfs_rq);
-	int cpu = cpu_of(rq);
-	int decayed;
-
-	/*
-	 * Track task load average for carrying it to new CPU after migrated, and
-	 * track group sched_entity load average for task_h_load calc in migration
-	 */
-	if (se->avg.last_update_time && !(flags & SKIP_AGE_LOAD))
-		__update_load_avg_se(now, cpu, cfs_rq, se);
-
-	decayed  = update_cfs_rq_load_avg(now, cfs_rq);
-	decayed |= propagate_entity_load_avg(se);
-
-	if (decayed && (flags & UPDATE_TG))
-		update_tg_load_avg(cfs_rq, 0);
+	return decayed;
 }
 
 /**
@@ -3418,12 +3664,39 @@ static inline void update_load_avg(struct sched_entity *se, int flags)
  */
 static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
+	u32 divider = LOAD_AVG_MAX - 1024 + cfs_rq->avg.period_contrib;
+
+	/*
+	 * When we attach the @se to the @cfs_rq, we must align the decay
+	 * window because without that, really weird and wonderful things can
+	 * happen.
+	 *
+	 * XXX illustrate
+	 */
 	se->avg.last_update_time = cfs_rq->avg.last_update_time;
-	cfs_rq->avg.load_avg += se->avg.load_avg;
-	cfs_rq->avg.load_sum += se->avg.load_sum;
+	se->avg.period_contrib = cfs_rq->avg.period_contrib;
+
+	/*
+	 * Hell(o) Nasty stuff.. we need to recompute _sum based on the new
+	 * period_contrib. This isn't strictly correct, but since we're
+	 * entirely outside of the PELT hierarchy, nobody cares if we truncate
+	 * _sum a little.
+	 */
+	se->avg.util_sum = se->avg.util_avg * divider;
+
+	se->avg.load_sum = divider;
+	if (se_weight(se)) {
+		se->avg.load_sum =
+			div_u64(se->avg.load_avg * se->avg.load_sum, se_weight(se));
+	}
+
+	se->avg.runnable_load_sum = se->avg.load_sum;
+
+	enqueue_load_avg(cfs_rq, se);
 	cfs_rq->avg.util_avg += se->avg.util_avg;
 	cfs_rq->avg.util_sum += se->avg.util_sum;
-	set_tg_cfs_propagate(cfs_rq);
+
+	add_tg_cfs_propagate(cfs_rq, se->avg.load_sum);
 
 	cfs_rq_util_change(cfs_rq);
 }
@@ -3438,39 +3711,47 @@ static void attach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *s
  */
 static void detach_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
-
-	sub_positive(&cfs_rq->avg.load_avg, se->avg.load_avg);
-	sub_positive(&cfs_rq->avg.load_sum, se->avg.load_sum);
+	dequeue_load_avg(cfs_rq, se);
 	sub_positive(&cfs_rq->avg.util_avg, se->avg.util_avg);
 	sub_positive(&cfs_rq->avg.util_sum, se->avg.util_sum);
-	set_tg_cfs_propagate(cfs_rq);
+
+	add_tg_cfs_propagate(cfs_rq, -se->avg.load_sum);
 
 	cfs_rq_util_change(cfs_rq);
 }
 
-/* Add the load generated by se into cfs_rq's load average */
-static inline void
-enqueue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
+/*
+ * Optional action to be done while updating the load average
+ */
+#define UPDATE_TG	0x1
+#define SKIP_AGE_LOAD	0x2
+#define DO_ATTACH	0x4
+
+/* Update task and its cfs_rq load average */
+static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
 {
-	struct sched_avg *sa = &se->avg;
+	u64 now = cfs_rq_clock_task(cfs_rq);
+	struct rq *rq = rq_of(cfs_rq);
+	int cpu = cpu_of(rq);
+	int decayed;
+
+	/*
+	 * Track task load average for carrying it to new CPU after migrated, and
+	 * track group sched_entity load average for task_h_load calc in migration
+	 */
+	if (se->avg.last_update_time && !(flags & SKIP_AGE_LOAD))
+		__update_load_avg_se(now, cpu, cfs_rq, se);
 
-	cfs_rq->runnable_load_avg += sa->load_avg;
-	cfs_rq->runnable_load_sum += sa->load_sum;
+	decayed  = update_cfs_rq_load_avg(now, cfs_rq);
+	decayed |= propagate_entity_load_avg(se);
+
+	if (!se->avg.last_update_time && (flags & DO_ATTACH)) {
 
-	if (!sa->last_update_time) {
 		attach_entity_load_avg(cfs_rq, se);
 		update_tg_load_avg(cfs_rq, 0);
-	}
-}
 
-/* Remove the runnable load generated by se from cfs_rq's runnable load average */
-static inline void
-dequeue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se)
-{
-	cfs_rq->runnable_load_avg =
-		max_t(long, cfs_rq->runnable_load_avg - se->avg.load_avg, 0);
-	cfs_rq->runnable_load_sum =
-		max_t(s64,  cfs_rq->runnable_load_sum - se->avg.load_sum, 0);
+	} else if (decayed && (flags & UPDATE_TG))
+		update_tg_load_avg(cfs_rq, 0);
 }
 
 #ifndef CONFIG_64BIT
@@ -3514,6 +3795,7 @@ void sync_entity_load_avg(struct sched_entity *se)
 void remove_entity_load_avg(struct sched_entity *se)
 {
 	struct cfs_rq *cfs_rq = cfs_rq_of(se);
+	unsigned long flags;
 
 	/*
 	 * tasks cannot exit without having gone through wake_up_new_task() ->
@@ -3526,13 +3808,18 @@ void remove_entity_load_avg(struct sched_entity *se)
 	 */
 
 	sync_entity_load_avg(se);
-	atomic_long_add(se->avg.load_avg, &cfs_rq->removed_load_avg);
-	atomic_long_add(se->avg.util_avg, &cfs_rq->removed_util_avg);
+
+	raw_spin_lock_irqsave(&cfs_rq->removed.lock, flags);
+	++cfs_rq->removed.nr;
+	cfs_rq->removed.util_avg	+= se->avg.util_avg;
+	cfs_rq->removed.load_avg	+= se->avg.load_avg;
+	cfs_rq->removed.runnable_sum	+= se->avg.load_sum; /* == runnable_sum */
+	raw_spin_unlock_irqrestore(&cfs_rq->removed.lock, flags);
 }
 
 static inline unsigned long cfs_rq_runnable_load_avg(struct cfs_rq *cfs_rq)
 {
-	return cfs_rq->runnable_load_avg;
+	return cfs_rq->avg.runnable_load_avg;
 }
 
 static inline unsigned long cfs_rq_load_avg(struct cfs_rq *cfs_rq)
@@ -3552,16 +3839,13 @@ update_cfs_rq_load_avg(u64 now, struct cfs_rq *cfs_rq)
 
 #define UPDATE_TG	0x0
 #define SKIP_AGE_LOAD	0x0
+#define DO_ATTACH	0x0
 
-static inline void update_load_avg(struct sched_entity *se, int not_used1)
+static inline void update_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se, int not_used1)
 {
-	cfs_rq_util_change(cfs_rq_of(se));
+	cfs_rq_util_change(cfs_rq);
 }
 
-static inline void
-enqueue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) {}
-static inline void
-dequeue_entity_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) {}
 static inline void remove_entity_load_avg(struct sched_entity *se) {}
 
 static inline void
@@ -3706,9 +3990,9 @@ enqueue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
 	 *     its group cfs_rq
 	 *   - Add its new weight to cfs_rq->load.weight
 	 */
-	update_load_avg(se, UPDATE_TG);
-	enqueue_entity_load_avg(cfs_rq, se);
-	update_cfs_shares(se);
+	update_load_avg(cfs_rq, se, UPDATE_TG | DO_ATTACH);
+	update_cfs_group(se);
+	enqueue_runnable_load_avg(cfs_rq, se);
 	account_entity_enqueue(cfs_rq, se);
 
 	if (flags & ENQUEUE_WAKEUP)
@@ -3790,8 +4074,8 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
 	 *   - For group entity, update its weight to reflect the new share
 	 *     of its group cfs_rq.
 	 */
-	update_load_avg(se, UPDATE_TG);
-	dequeue_entity_load_avg(cfs_rq, se);
+	update_load_avg(cfs_rq, se, UPDATE_TG);
+	dequeue_runnable_load_avg(cfs_rq, se);
 
 	update_stats_dequeue(cfs_rq, se, flags);
 
@@ -3814,7 +4098,7 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
 	/* return excess runtime on last dequeue */
 	return_cfs_rq_runtime(cfs_rq);
 
-	update_cfs_shares(se);
+	update_cfs_group(se);
 
 	/*
 	 * Now advance min_vruntime if @se was the entity holding it back,
@@ -3878,7 +4162,7 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se)
 		 */
 		update_stats_wait_end(cfs_rq, se);
 		__dequeue_entity(cfs_rq, se);
-		update_load_avg(se, UPDATE_TG);
+		update_load_avg(cfs_rq, se, UPDATE_TG);
 	}
 
 	update_stats_curr_start(cfs_rq, se);
@@ -3980,7 +4264,7 @@ static void put_prev_entity(struct cfs_rq *cfs_rq, struct sched_entity *prev)
 		/* Put 'current' back into the tree. */
 		__enqueue_entity(cfs_rq, prev);
 		/* in !on_rq case, update occurred at dequeue */
-		update_load_avg(prev, 0);
+		update_load_avg(cfs_rq, prev, 0);
 	}
 	cfs_rq->curr = NULL;
 }
@@ -3996,8 +4280,8 @@ entity_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr, int queued)
 	/*
 	 * Ensure that runnable average is periodically updated.
 	 */
-	update_load_avg(curr, UPDATE_TG);
-	update_cfs_shares(curr);
+	update_load_avg(cfs_rq, curr, UPDATE_TG);
+	update_cfs_group(curr);
 
 #ifdef CONFIG_SCHED_HRTICK
 	/*
@@ -4914,8 +5198,8 @@ enqueue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 		if (cfs_rq_throttled(cfs_rq))
 			break;
 
-		update_load_avg(se, UPDATE_TG);
-		update_cfs_shares(se);
+		update_load_avg(cfs_rq, se, UPDATE_TG);
+		update_cfs_group(se);
 	}
 
 	if (!se)
@@ -4973,8 +5257,8 @@ static void dequeue_task_fair(struct rq *rq, struct task_struct *p, int flags)
 		if (cfs_rq_throttled(cfs_rq))
 			break;
 
-		update_load_avg(se, UPDATE_TG);
-		update_cfs_shares(se);
+		update_load_avg(cfs_rq, se, UPDATE_TG);
+		update_cfs_group(se);
 	}
 
 	if (!se)
@@ -5356,91 +5640,62 @@ static int wake_wide(struct task_struct *p)
 	return 1;
 }
 
-struct llc_stats {
-	unsigned long	nr_running;
-	unsigned long	load;
-	unsigned long	capacity;
-	int		has_capacity;
-};
+/*
+ * The purpose of wake_affine() is to quickly determine on which CPU we can run
+ * soonest. For the purpose of speed we only consider the waking and previous
+ * CPU.
+ *
+ * wake_affine_idle() - only considers 'now', it check if the waking CPU is (or
+ *			will be) idle.
+ *
+ * wake_affine_weight() - considers the weight to reflect the average
+ *			  scheduling latency of the CPUs. This seems to work
+ *			  for the overloaded case.
+ */
 
-static bool get_llc_stats(struct llc_stats *stats, int cpu)
+static bool
+wake_affine_idle(struct sched_domain *sd, struct task_struct *p,
+		 int this_cpu, int prev_cpu, int sync)
 {
-	struct sched_domain_shared *sds = rcu_dereference(per_cpu(sd_llc_shared, cpu));
-
-	if (!sds)
-		return false;
+	if (idle_cpu(this_cpu))
+		return true;
 
-	stats->nr_running	= READ_ONCE(sds->nr_running);
-	stats->load		= READ_ONCE(sds->load);
-	stats->capacity		= READ_ONCE(sds->capacity);
-	stats->has_capacity	= stats->nr_running < per_cpu(sd_llc_size, cpu);
+	if (sync && cpu_rq(this_cpu)->nr_running == 1)
+		return true;
 
-	return true;
+	return false;
 }
 
-/*
- * Can a task be moved from prev_cpu to this_cpu without causing a load
- * imbalance that would trigger the load balancer?
- *
- * Since we're running on 'stale' values, we might in fact create an imbalance
- * but recomputing these values is expensive, as that'd mean iteration 2 cache
- * domains worth of CPUs.
- */
 static bool
-wake_affine_llc(struct sched_domain *sd, struct task_struct *p,
-		int this_cpu, int prev_cpu, int sync)
+wake_affine_weight(struct sched_domain *sd, struct task_struct *p,
+		   int this_cpu, int prev_cpu, int sync)
 {
-	struct llc_stats prev_stats, this_stats;
 	s64 this_eff_load, prev_eff_load;
 	unsigned long task_load;
 
-	if (!get_llc_stats(&prev_stats, prev_cpu) ||
-	    !get_llc_stats(&this_stats, this_cpu))
-		return false;
+	this_eff_load = target_load(this_cpu, sd->wake_idx);
+	prev_eff_load = source_load(prev_cpu, sd->wake_idx);
 
-	/*
-	 * If sync wakeup then subtract the (maximum possible)
-	 * effect of the currently running task from the load
-	 * of the current LLC.
-	 */
 	if (sync) {
 		unsigned long current_load = task_h_load(current);
 
-		/* in this case load hits 0 and this LLC is considered 'idle' */
-		if (current_load > this_stats.load)
+		if (current_load > this_eff_load)
 			return true;
 
-		this_stats.load -= current_load;
+		this_eff_load -= current_load;
 	}
 
-	/*
-	 * The has_capacity stuff is not SMT aware, but by trying to balance
-	 * the nr_running on both ends we try and fill the domain at equal
-	 * rates, thereby first consuming cores before siblings.
-	 */
-
-	/* if the old cache has capacity, stay there */
-	if (prev_stats.has_capacity && prev_stats.nr_running < this_stats.nr_running+1)
-		return false;
-
-	/* if this cache has capacity, come here */
-	if (this_stats.has_capacity && this_stats.nr_running+1 < prev_stats.nr_running)
-		return true;
-
-	/*
-	 * Check to see if we can move the load without causing too much
-	 * imbalance.
-	 */
 	task_load = task_h_load(p);
 
-	this_eff_load = 100;
-	this_eff_load *= prev_stats.capacity;
-
-	prev_eff_load = 100 + (sd->imbalance_pct - 100) / 2;
-	prev_eff_load *= this_stats.capacity;
+	this_eff_load += task_load;
+	if (sched_feat(WA_BIAS))
+		this_eff_load *= 100;
+	this_eff_load *= capacity_of(prev_cpu);
 
-	this_eff_load *= this_stats.load + task_load;
-	prev_eff_load *= prev_stats.load - task_load;
+	prev_eff_load -= task_load;
+	if (sched_feat(WA_BIAS))
+		prev_eff_load *= 100 + (sd->imbalance_pct - 100) / 2;
+	prev_eff_load *= capacity_of(this_cpu);
 
 	return this_eff_load <= prev_eff_load;
 }
@@ -5449,22 +5704,13 @@ static int wake_affine(struct sched_domain *sd, struct task_struct *p,
 		       int prev_cpu, int sync)
 {
 	int this_cpu = smp_processor_id();
-	bool affine;
+	bool affine = false;
 
-	/*
-	 * Default to no affine wakeups; wake_affine() should not effect a task
-	 * placement the load-balancer feels inclined to undo. The conservative
-	 * option is therefore to not move tasks when they wake up.
-	 */
-	affine = false;
+	if (sched_feat(WA_IDLE) && !affine)
+		affine = wake_affine_idle(sd, p, this_cpu, prev_cpu, sync);
 
-	/*
-	 * If the wakeup is across cache domains, try to evaluate if movement
-	 * makes sense, otherwise rely on select_idle_siblings() to do
-	 * placement inside the cache domain.
-	 */
-	if (!cpus_share_cache(prev_cpu, this_cpu))
-		affine = wake_affine_llc(sd, p, this_cpu, prev_cpu, sync);
+	if (sched_feat(WA_WEIGHT) && !affine)
+		affine = wake_affine_weight(sd, p, this_cpu, prev_cpu, sync);
 
 	schedstat_inc(p->se.statistics.nr_wakeups_affine_attempts);
 	if (affine) {
@@ -5486,6 +5732,8 @@ static unsigned long capacity_spare_wake(int cpu, struct task_struct *p)
 /*
  * find_idlest_group finds and returns the least busy CPU group within the
  * domain.
+ *
+ * Assumes p is allowed on at least one CPU in sd.
  */
 static struct sched_group *
 find_idlest_group(struct sched_domain *sd, struct task_struct *p,
@@ -5493,8 +5741,9 @@ find_idlest_group(struct sched_domain *sd, struct task_struct *p,
 {
 	struct sched_group *idlest = NULL, *group = sd->groups;
 	struct sched_group *most_spare_sg = NULL;
-	unsigned long min_runnable_load = ULONG_MAX, this_runnable_load = 0;
-	unsigned long min_avg_load = ULONG_MAX, this_avg_load = 0;
+	unsigned long min_runnable_load = ULONG_MAX;
+	unsigned long this_runnable_load = ULONG_MAX;
+	unsigned long min_avg_load = ULONG_MAX, this_avg_load = ULONG_MAX;
 	unsigned long most_spare = 0, this_spare = 0;
 	int load_idx = sd->forkexec_idx;
 	int imbalance_scale = 100 + (sd->imbalance_pct-100)/2;
@@ -5615,10 +5864,10 @@ skip_spare:
 }
 
 /*
- * find_idlest_cpu - find the idlest cpu among the cpus in group.
+ * find_idlest_group_cpu - find the idlest cpu among the cpus in group.
  */
 static int
-find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu)
+find_idlest_group_cpu(struct sched_group *group, struct task_struct *p, int this_cpu)
 {
 	unsigned long load, min_load = ULONG_MAX;
 	unsigned int min_exit_latency = UINT_MAX;
@@ -5667,6 +5916,53 @@ find_idlest_cpu(struct sched_group *group, struct task_struct *p, int this_cpu)
 	return shallowest_idle_cpu != -1 ? shallowest_idle_cpu : least_loaded_cpu;
 }
 
+static inline int find_idlest_cpu(struct sched_domain *sd, struct task_struct *p,
+				  int cpu, int prev_cpu, int sd_flag)
+{
+	int new_cpu = cpu;
+
+	if (!cpumask_intersects(sched_domain_span(sd), &p->cpus_allowed))
+		return prev_cpu;
+
+	while (sd) {
+		struct sched_group *group;
+		struct sched_domain *tmp;
+		int weight;
+
+		if (!(sd->flags & sd_flag)) {
+			sd = sd->child;
+			continue;
+		}
+
+		group = find_idlest_group(sd, p, cpu, sd_flag);
+		if (!group) {
+			sd = sd->child;
+			continue;
+		}
+
+		new_cpu = find_idlest_group_cpu(group, p, cpu);
+		if (new_cpu == cpu) {
+			/* Now try balancing at a lower domain level of cpu */
+			sd = sd->child;
+			continue;
+		}
+
+		/* Now try balancing at a lower domain level of new_cpu */
+		cpu = new_cpu;
+		weight = sd->span_weight;
+		sd = NULL;
+		for_each_domain(cpu, tmp) {
+			if (weight <= tmp->span_weight)
+				break;
+			if (tmp->flags & sd_flag)
+				sd = tmp;
+		}
+		/* while loop will break here if sd == NULL */
+	}
+
+	return new_cpu;
+}
+
 #ifdef CONFIG_SCHED_SMT
 
 static inline void set_idle_cores(int cpu, int val)
@@ -6019,50 +6315,30 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
 			new_cpu = cpu;
 	}
 
+	if (sd && !(sd_flag & SD_BALANCE_FORK)) {
+		/*
+		 * We're going to need the task's util for capacity_spare_wake
+		 * in find_idlest_group. Sync it up to prev_cpu's
+		 * last_update_time.
+		 */
+		sync_entity_load_avg(&p->se);
+	}
+
 	if (!sd) {
- pick_cpu:
+pick_cpu:
 		if (sd_flag & SD_BALANCE_WAKE) /* XXX always ? */
 			new_cpu = select_idle_sibling(p, prev_cpu, new_cpu);
 
-	} else while (sd) {
-		struct sched_group *group;
-		int weight;
-
-		if (!(sd->flags & sd_flag)) {
-			sd = sd->child;
-			continue;
-		}
-
-		group = find_idlest_group(sd, p, cpu, sd_flag);
-		if (!group) {
-			sd = sd->child;
-			continue;
-		}
-
-		new_cpu = find_idlest_cpu(group, p, cpu);
-		if (new_cpu == -1 || new_cpu == cpu) {
-			/* Now try balancing at a lower domain level of cpu */
-			sd = sd->child;
-			continue;
-		}
-
-		/* Now try balancing at a lower domain level of new_cpu */
-		cpu = new_cpu;
-		weight = sd->span_weight;
-		sd = NULL;
-		for_each_domain(cpu, tmp) {
-			if (weight <= tmp->span_weight)
-				break;
-			if (tmp->flags & sd_flag)
-				sd = tmp;
-		}
-		/* while loop will break here if sd == NULL */
+	} else {
+		new_cpu = find_idlest_cpu(sd, p, cpu, prev_cpu, sd_flag);
 	}
 	rcu_read_unlock();
 
 	return new_cpu;
 }
 
+static void detach_entity_cfs_rq(struct sched_entity *se);
+
 /*
  * Called immediately before a task is migrated to a new cpu; task_cpu(p) and
  * cfs_rq_of(p) references at time of call are still valid and identify the
@@ -6096,14 +6372,25 @@ static void migrate_task_rq_fair(struct task_struct *p)
 		se->vruntime -= min_vruntime;
 	}
 
-	/*
-	 * We are supposed to update the task to "current" time, then its up to date
-	 * and ready to go to new CPU/cfs_rq. But we have difficulty in getting
-	 * what current time is, so simply throw away the out-of-date time. This
-	 * will result in the wakee task is less decayed, but giving the wakee more
-	 * load sounds not bad.
-	 */
-	remove_entity_load_avg(&p->se);
+	if (p->on_rq == TASK_ON_RQ_MIGRATING) {
+		/*
+		 * In case of TASK_ON_RQ_MIGRATING we in fact hold the 'old'
+		 * rq->lock and can modify state directly.
+		 */
+		lockdep_assert_held(&task_rq(p)->lock);
+		detach_entity_cfs_rq(&p->se);
+
+	} else {
+		/*
+		 * We are supposed to update the task to "current" time, then
+		 * its up to date and ready to go to new CPU/cfs_rq. But we
+		 * have difficulty in getting what current time is, so simply
+		 * throw away the out-of-date time. This will result in the
+		 * wakee task is less decayed, but giving the wakee more load
+		 * sounds not bad.
+		 */
+		remove_entity_load_avg(&p->se);
+	}
 
 	/* Tell new CPU we are migrated */
 	p->se.avg.last_update_time = 0;
@@ -6371,10 +6658,7 @@ again:
 		set_next_entity(cfs_rq, se);
 	}
 
-	if (hrtick_enabled(rq))
-		hrtick_start_fair(rq, p);
-
-	return p;
+	goto done;
 simple:
 #endif
 
@@ -6388,6 +6672,16 @@ simple:
 
 	p = task_of(se);
 
+done: __maybe_unused
+#ifdef CONFIG_SMP
+	/*
+	 * Move the next running task to the front of
+	 * the list, so our cfs_tasks list becomes MRU
+	 * one.
+	 */
+	list_move(&p->se.group_node, &rq->cfs_tasks);
+#endif
+
 	if (hrtick_enabled(rq))
 		hrtick_start_fair(rq, p);
 
@@ -6823,11 +7117,12 @@ static void detach_task(struct task_struct *p, struct lb_env *env)
  */
 static struct task_struct *detach_one_task(struct lb_env *env)
 {
-	struct task_struct *p, *n;
+	struct task_struct *p;
 
 	lockdep_assert_held(&env->src_rq->lock);
 
-	list_for_each_entry_safe(p, n, &env->src_rq->cfs_tasks, se.group_node) {
+	list_for_each_entry_reverse(p,
+			&env->src_rq->cfs_tasks, se.group_node) {
 		if (!can_migrate_task(p, env))
 			continue;
 
@@ -6873,7 +7168,7 @@ static int detach_tasks(struct lb_env *env)
 		if (env->idle != CPU_NOT_IDLE && env->src_rq->nr_running <= 1)
 			break;
 
-		p = list_first_entry(tasks, struct task_struct, se.group_node);
+		p = list_last_entry(tasks, struct task_struct, se.group_node);
 
 		env->loop++;
 		/* We've more or less seen every task there is, call it quits */
@@ -6923,7 +7218,7 @@ static int detach_tasks(struct lb_env *env)
 
 		continue;
 next:
-		list_move_tail(&p->se.group_node, tasks);
+		list_move(&p->se.group_node, tasks);
 	}
 
 	/*
@@ -6999,7 +7294,7 @@ static inline bool cfs_rq_is_decayed(struct cfs_rq *cfs_rq)
 	if (cfs_rq->avg.util_sum)
 		return false;
 
-	if (cfs_rq->runnable_load_sum)
+	if (cfs_rq->avg.runnable_load_sum)
 		return false;
 
 	return true;
@@ -7031,7 +7326,7 @@ static void update_blocked_averages(int cpu)
 		/* Propagate pending load changes to the parent, if any: */
 		se = cfs_rq->tg->se[cpu];
 		if (se && !skip_blocked_update(se))
-			update_load_avg(se, 0);
+			update_load_avg(cfs_rq_of(se), se, 0);
 
 		/*
 		 * There can be a lot of idle CPU cgroups.  Don't let fully
@@ -7600,7 +7895,6 @@ static inline enum fbq_type fbq_classify_rq(struct rq *rq)
  */
 static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sds)
 {
-	struct sched_domain_shared *shared = env->sd->shared;
 	struct sched_domain *child = env->sd->child;
 	struct sched_group *sg = env->sd->groups;
 	struct sg_lb_stats *local = &sds->local_stat;
@@ -7672,22 +7966,6 @@ next_group:
 		if (env->dst_rq->rd->overload != overload)
 			env->dst_rq->rd->overload = overload;
 	}
-
-	if (!shared)
-		return;
-
-	/*
-	 * Since these are sums over groups they can contain some CPUs
-	 * multiple times for the NUMA domains.
-	 *
-	 * Currently only wake_affine_llc() and find_busiest_group()
-	 * uses these numbers, only the last is affected by this problem.
-	 *
-	 * XXX fix that.
-	 */
-	WRITE_ONCE(shared->nr_running,	sds->total_running);
-	WRITE_ONCE(shared->load,	sds->total_load);
-	WRITE_ONCE(shared->capacity,	sds->total_capacity);
 }
 
 /**
@@ -7929,8 +8207,11 @@ static struct sched_group *find_busiest_group(struct lb_env *env)
 	if (busiest->group_type == group_imbalanced)
 		goto force_balance;
 
-	/* SD_BALANCE_NEWIDLE trumps SMP nice when underutilized */
-	if (env->idle == CPU_NEWLY_IDLE && group_has_capacity(env, local) &&
+	/*
+	 * When dst_cpu is idle, prevent SMP nice and/or asymmetric group
+	 * capacities from resulting in underutilization due to avg_load.
+	 */
+	if (env->idle != CPU_NOT_IDLE && group_has_capacity(env, local) &&
 	    busiest->group_no_capacity)
 		goto force_balance;
 
@@ -8098,6 +8379,13 @@ static int should_we_balance(struct lb_env *env)
 	int cpu, balance_cpu = -1;
 
 	/*
+	 * Ensure the balancing environment is consistent; can happen
+	 * when the softirq triggers 'during' hotplug.
+	 */
+	if (!cpumask_test_cpu(env->dst_cpu, env->cpus))
+		return 0;
+
+	/*
 	 * In the newly idle case, we will allow all the cpu's
 	 * to do the newly idle load balance.
 	 */
@@ -8437,6 +8725,12 @@ static int idle_balance(struct rq *this_rq, struct rq_flags *rf)
 	this_rq->idle_stamp = rq_clock(this_rq);
 
 	/*
+	 * Do not pull tasks towards !active CPUs...
+	 */
+	if (!cpu_active(this_cpu))
+		return 0;
+
+	/*
 	 * This is OK, because current is on_cpu, which avoids it being picked
 	 * for load-balance and preemption/IRQs are still disabled avoiding
 	 * further scheduler activity on it and we're being very careful to
@@ -8543,6 +8837,13 @@ static int active_load_balance_cpu_stop(void *data)
 	struct rq_flags rf;
 
 	rq_lock_irq(busiest_rq, &rf);
+	/*
+	 * Between queueing the stop-work and running it is a hole in which
+	 * CPUs can become inactive. We should not move tasks from or to
+	 * inactive CPUs.
+	 */
+	if (!cpu_active(busiest_cpu) || !cpu_active(target_cpu))
+		goto out_unlock;
 
 	/* make sure the requested cpu hasn't gone down in the meantime */
 	if (unlikely(busiest_cpu != smp_processor_id() ||
@@ -8727,7 +9028,7 @@ void nohz_balance_enter_idle(int cpu)
 		return;
 
 	/* Spare idle load balancing on CPUs that don't want to be disturbed: */
-	if (!is_housekeeping_cpu(cpu))
+	if (!housekeeping_cpu(cpu, HK_FLAG_SCHED))
 		return;
 
 	if (test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))
@@ -9192,7 +9493,7 @@ static void propagate_entity_cfs_rq(struct sched_entity *se)
 		if (cfs_rq_throttled(cfs_rq))
 			break;
 
-		update_load_avg(se, UPDATE_TG);
+		update_load_avg(cfs_rq, se, UPDATE_TG);
 	}
 }
 #else
@@ -9204,7 +9505,7 @@ static void detach_entity_cfs_rq(struct sched_entity *se)
 	struct cfs_rq *cfs_rq = cfs_rq_of(se);
 
 	/* Catch up with the cfs_rq and remove our load when we leave */
-	update_load_avg(se, 0);
+	update_load_avg(cfs_rq, se, 0);
 	detach_entity_load_avg(cfs_rq, se);
 	update_tg_load_avg(cfs_rq, false);
 	propagate_entity_cfs_rq(se);
@@ -9223,7 +9524,7 @@ static void attach_entity_cfs_rq(struct sched_entity *se)
 #endif
 
 	/* Synchronize entity with its cfs_rq */
-	update_load_avg(se, sched_feat(ATTACH_AGE_LOAD) ? 0 : SKIP_AGE_LOAD);
+	update_load_avg(cfs_rq, se, sched_feat(ATTACH_AGE_LOAD) ? 0 : SKIP_AGE_LOAD);
 	attach_entity_load_avg(cfs_rq, se);
 	update_tg_load_avg(cfs_rq, false);
 	propagate_entity_cfs_rq(se);
@@ -9305,11 +9606,7 @@ void init_cfs_rq(struct cfs_rq *cfs_rq)
 	cfs_rq->min_vruntime_copy = cfs_rq->min_vruntime;
 #endif
 #ifdef CONFIG_SMP
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	cfs_rq->propagate_avg = 0;
-#endif
-	atomic_long_set(&cfs_rq->removed_load_avg, 0);
-	atomic_long_set(&cfs_rq->removed_util_avg, 0);
+	raw_spin_lock_init(&cfs_rq->removed.lock);
 #endif
 }
 
@@ -9507,8 +9804,8 @@ int sched_group_set_shares(struct task_group *tg, unsigned long shares)
 		rq_lock_irqsave(rq, &rf);
 		update_rq_clock(rq);
 		for_each_sched_entity(se) {
-			update_load_avg(se, UPDATE_TG);
-			update_cfs_shares(se);
+			update_load_avg(cfs_rq_of(se), se, UPDATE_TG);
+			update_cfs_group(se);
 		}
 		rq_unlock_irqrestore(rq, &rf);
 	}
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index d3fb15555291..9552fd5854bf 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Only give sleepers 50% of their service deficit. This allows
  * them to run sooner, but does not allow tons of sleepers to
@@ -81,3 +82,6 @@ SCHED_FEAT(RT_RUNTIME_SHARE, true)
 SCHED_FEAT(LB_MIN, false)
 SCHED_FEAT(ATTACH_AGE_LOAD, true)
 
+SCHED_FEAT(WA_IDLE, true)
+SCHED_FEAT(WA_WEIGHT, true)
+SCHED_FEAT(WA_BIAS, true)
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 257f4f0b4532..7dae9eb8c042 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -209,6 +209,7 @@ exit_idle:
  */
 static void do_idle(void)
 {
+	int cpu = smp_processor_id();
 	/*
 	 * If the arch has a polling bit, we maintain an invariant:
 	 *
@@ -219,14 +220,13 @@ static void do_idle(void)
 	 */
 
 	__current_set_polling();
-	quiet_vmstat();
 	tick_nohz_idle_enter();
 
 	while (!need_resched()) {
 		check_pgt_cache();
 		rmb();
 
-		if (cpu_is_offline(smp_processor_id())) {
+		if (cpu_is_offline(cpu)) {
 			cpuhp_report_idle_dead();
 			arch_cpu_idle_dead();
 		}
diff --git a/kernel/sched/idle_task.c b/kernel/sched/idle_task.c
index 0c00172db63e..d518664cce4f 100644
--- a/kernel/sched/idle_task.c
+++ b/kernel/sched/idle_task.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "sched.h"
 
 /*
diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c
new file mode 100644
index 000000000000..b71b436f59f2
--- /dev/null
+++ b/kernel/sched/isolation.c
@@ -0,0 +1,155 @@
+/*
+ *  Housekeeping management. Manage the targets for routine code that can run on
+ *  any CPU: unbound workqueues, timers, kthreads and any offloadable work.
+ *
+ * Copyright (C) 2017 Red Hat, Inc., Frederic Weisbecker
+ *
+ */
+
+#include <linux/sched/isolation.h>
+#include <linux/tick.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/static_key.h>
+#include <linux/ctype.h>
+
+DEFINE_STATIC_KEY_FALSE(housekeeping_overriden);
+EXPORT_SYMBOL_GPL(housekeeping_overriden);
+static cpumask_var_t housekeeping_mask;
+static unsigned int housekeeping_flags;
+
+int housekeeping_any_cpu(enum hk_flags flags)
+{
+	if (static_branch_unlikely(&housekeeping_overriden))
+		if (housekeeping_flags & flags)
+			return cpumask_any_and(housekeeping_mask, cpu_online_mask);
+	return smp_processor_id();
+}
+EXPORT_SYMBOL_GPL(housekeeping_any_cpu);
+
+const struct cpumask *housekeeping_cpumask(enum hk_flags flags)
+{
+	if (static_branch_unlikely(&housekeeping_overriden))
+		if (housekeeping_flags & flags)
+			return housekeeping_mask;
+	return cpu_possible_mask;
+}
+EXPORT_SYMBOL_GPL(housekeeping_cpumask);
+
+void housekeeping_affine(struct task_struct *t, enum hk_flags flags)
+{
+	if (static_branch_unlikely(&housekeeping_overriden))
+		if (housekeeping_flags & flags)
+			set_cpus_allowed_ptr(t, housekeeping_mask);
+}
+EXPORT_SYMBOL_GPL(housekeeping_affine);
+
+bool housekeeping_test_cpu(int cpu, enum hk_flags flags)
+{
+	if (static_branch_unlikely(&housekeeping_overriden))
+		if (housekeeping_flags & flags)
+			return cpumask_test_cpu(cpu, housekeeping_mask);
+	return true;
+}
+EXPORT_SYMBOL_GPL(housekeeping_test_cpu);
+
+void __init housekeeping_init(void)
+{
+	if (!housekeeping_flags)
+		return;
+
+	static_branch_enable(&housekeeping_overriden);
+
+	/* We need at least one CPU to handle housekeeping work */
+	WARN_ON_ONCE(cpumask_empty(housekeeping_mask));
+}
+
+static int __init housekeeping_setup(char *str, enum hk_flags flags)
+{
+	cpumask_var_t non_housekeeping_mask;
+	int err;
+
+	alloc_bootmem_cpumask_var(&non_housekeeping_mask);
+	err = cpulist_parse(str, non_housekeeping_mask);
+	if (err < 0 || cpumask_last(non_housekeeping_mask) >= nr_cpu_ids) {
+		pr_warn("Housekeeping: nohz_full= or isolcpus= incorrect CPU range\n");
+		free_bootmem_cpumask_var(non_housekeeping_mask);
+		return 0;
+	}
+
+	if (!housekeeping_flags) {
+		alloc_bootmem_cpumask_var(&housekeeping_mask);
+		cpumask_andnot(housekeeping_mask,
+			       cpu_possible_mask, non_housekeeping_mask);
+		if (cpumask_empty(housekeeping_mask))
+			cpumask_set_cpu(smp_processor_id(), housekeeping_mask);
+	} else {
+		cpumask_var_t tmp;
+
+		alloc_bootmem_cpumask_var(&tmp);
+		cpumask_andnot(tmp, cpu_possible_mask, non_housekeeping_mask);
+		if (!cpumask_equal(tmp, housekeeping_mask)) {
+			pr_warn("Housekeeping: nohz_full= must match isolcpus=\n");
+			free_bootmem_cpumask_var(tmp);
+			free_bootmem_cpumask_var(non_housekeeping_mask);
+			return 0;
+		}
+		free_bootmem_cpumask_var(tmp);
+	}
+
+	if ((flags & HK_FLAG_TICK) && !(housekeeping_flags & HK_FLAG_TICK)) {
+		if (IS_ENABLED(CONFIG_NO_HZ_FULL)) {
+			tick_nohz_full_setup(non_housekeeping_mask);
+		} else {
+			pr_warn("Housekeeping: nohz unsupported."
+				" Build with CONFIG_NO_HZ_FULL\n");
+			free_bootmem_cpumask_var(non_housekeeping_mask);
+			return 0;
+		}
+	}
+
+	housekeeping_flags |= flags;
+
+	free_bootmem_cpumask_var(non_housekeeping_mask);
+
+	return 1;
+}
+
+static int __init housekeeping_nohz_full_setup(char *str)
+{
+	unsigned int flags;
+
+	flags = HK_FLAG_TICK | HK_FLAG_TIMER | HK_FLAG_RCU | HK_FLAG_MISC;
+
+	return housekeeping_setup(str, flags);
+}
+__setup("nohz_full=", housekeeping_nohz_full_setup);
+
+static int __init housekeeping_isolcpus_setup(char *str)
+{
+	unsigned int flags = 0;
+
+	while (isalpha(*str)) {
+		if (!strncmp(str, "nohz,", 5)) {
+			str += 5;
+			flags |= HK_FLAG_TICK;
+			continue;
+		}
+
+		if (!strncmp(str, "domain,", 7)) {
+			str += 7;
+			flags |= HK_FLAG_DOMAIN;
+			continue;
+		}
+
+		pr_warn("isolcpus: Error, unknown flag\n");
+		return 0;
+	}
+
+	/* Default behaviour for isolcpus without flags */
+	if (!flags)
+		flags |= HK_FLAG_DOMAIN;
+
+	return housekeeping_setup(str, flags);
+}
+__setup("isolcpus=", housekeeping_isolcpus_setup);
diff --git a/kernel/sched/loadavg.c b/kernel/sched/loadavg.c
index f14716a3522f..89a989e4d758 100644
--- a/kernel/sched/loadavg.c
+++ b/kernel/sched/loadavg.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kernel/sched/loadavg.c
  *
diff --git a/kernel/sched/membarrier.c b/kernel/sched/membarrier.c
index a92fddc22747..dd7908743dab 100644
--- a/kernel/sched/membarrier.c
+++ b/kernel/sched/membarrier.c
@@ -18,6 +18,7 @@
 #include <linux/membarrier.h>
 #include <linux/tick.h>
 #include <linux/cpumask.h>
+#include <linux/atomic.h>
 
 #include "sched.h"	/* for cpu_rq(). */
 
@@ -26,21 +27,26 @@
  * except MEMBARRIER_CMD_QUERY.
  */
 #define MEMBARRIER_CMD_BITMASK	\
-	(MEMBARRIER_CMD_SHARED | MEMBARRIER_CMD_PRIVATE_EXPEDITED)
+	(MEMBARRIER_CMD_SHARED | MEMBARRIER_CMD_PRIVATE_EXPEDITED	\
+	| MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED)
 
 static void ipi_mb(void *info)
 {
 	smp_mb();	/* IPIs should be serializing but paranoid. */
 }
 
-static void membarrier_private_expedited(void)
+static int membarrier_private_expedited(void)
 {
 	int cpu;
 	bool fallback = false;
 	cpumask_var_t tmpmask;
 
+	if (!(atomic_read(&current->mm->membarrier_state)
+			& MEMBARRIER_STATE_PRIVATE_EXPEDITED_READY))
+		return -EPERM;
+
 	if (num_online_cpus() == 1)
-		return;
+		return 0;
 
 	/*
 	 * Matches memory barriers around rq->curr modification in
@@ -94,6 +100,24 @@ static void membarrier_private_expedited(void)
 	 * rq->curr modification in scheduler.
 	 */
 	smp_mb();	/* exit from system call is not a mb */
+	return 0;
+}
+
+static void membarrier_register_private_expedited(void)
+{
+	struct task_struct *p = current;
+	struct mm_struct *mm = p->mm;
+
+	/*
+	 * We need to consider threads belonging to different thread
+	 * groups, which use the same mm. (CLONE_VM but not
+	 * CLONE_THREAD).
+	 */
+	if (atomic_read(&mm->membarrier_state)
+			& MEMBARRIER_STATE_PRIVATE_EXPEDITED_READY)
+		return;
+	atomic_or(MEMBARRIER_STATE_PRIVATE_EXPEDITED_READY,
+			&mm->membarrier_state);
 }
 
 /**
@@ -144,7 +168,9 @@ SYSCALL_DEFINE2(membarrier, int, cmd, int, flags)
 			synchronize_sched();
 		return 0;
 	case MEMBARRIER_CMD_PRIVATE_EXPEDITED:
-		membarrier_private_expedited();
+		return membarrier_private_expedited();
+	case MEMBARRIER_CMD_REGISTER_PRIVATE_EXPEDITED:
+		membarrier_register_private_expedited();
 		return 0;
 	default:
 		return -EINVAL;
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 0af5ca9e3e3f..d8c43d73e078 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Real-Time Scheduling Class (mapped to the SCHED_FIFO and SCHED_RR
  * policies)
@@ -73,10 +74,6 @@ static void start_rt_bandwidth(struct rt_bandwidth *rt_b)
 	raw_spin_unlock(&rt_b->rt_runtime_lock);
 }
 
-#if defined(CONFIG_SMP) && defined(HAVE_RT_PUSH_IPI)
-static void push_irq_work_func(struct irq_work *work);
-#endif
-
 void init_rt_rq(struct rt_rq *rt_rq)
 {
 	struct rt_prio_array *array;
@@ -96,13 +93,6 @@ void init_rt_rq(struct rt_rq *rt_rq)
 	rt_rq->rt_nr_migratory = 0;
 	rt_rq->overloaded = 0;
 	plist_head_init(&rt_rq->pushable_tasks);
-
-#ifdef HAVE_RT_PUSH_IPI
-	rt_rq->push_flags = 0;
-	rt_rq->push_cpu = nr_cpu_ids;
-	raw_spin_lock_init(&rt_rq->push_lock);
-	init_irq_work(&rt_rq->push_work, push_irq_work_func);
-#endif
 #endif /* CONFIG_SMP */
 	/* We start is dequeued state, because no RT tasks are queued */
 	rt_rq->rt_queued = 0;
@@ -1875,241 +1865,166 @@ static void push_rt_tasks(struct rq *rq)
 }
 
 #ifdef HAVE_RT_PUSH_IPI
+
 /*
- * The search for the next cpu always starts at rq->cpu and ends
- * when we reach rq->cpu again. It will never return rq->cpu.
- * This returns the next cpu to check, or nr_cpu_ids if the loop
- * is complete.
+ * When a high priority task schedules out from a CPU and a lower priority
+ * task is scheduled in, a check is made to see if there's any RT tasks
+ * on other CPUs that are waiting to run because a higher priority RT task
+ * is currently running on its CPU. In this case, the CPU with multiple RT
+ * tasks queued on it (overloaded) needs to be notified that a CPU has opened
+ * up that may be able to run one of its non-running queued RT tasks.
+ *
+ * All CPUs with overloaded RT tasks need to be notified as there is currently
+ * no way to know which of these CPUs have the highest priority task waiting
+ * to run. Instead of trying to take a spinlock on each of these CPUs,
+ * which has shown to cause large latency when done on machines with many
+ * CPUs, sending an IPI to the CPUs to have them push off the overloaded
+ * RT tasks waiting to run.
+ *
+ * Just sending an IPI to each of the CPUs is also an issue, as on large
+ * count CPU machines, this can cause an IPI storm on a CPU, especially
+ * if its the only CPU with multiple RT tasks queued, and a large number
+ * of CPUs scheduling a lower priority task at the same time.
+ *
+ * Each root domain has its own irq work function that can iterate over
+ * all CPUs with RT overloaded tasks. Since all CPUs with overloaded RT
+ * tassk must be checked if there's one or many CPUs that are lowering
+ * their priority, there's a single irq work iterator that will try to
+ * push off RT tasks that are waiting to run.
+ *
+ * When a CPU schedules a lower priority task, it will kick off the
+ * irq work iterator that will jump to each CPU with overloaded RT tasks.
+ * As it only takes the first CPU that schedules a lower priority task
+ * to start the process, the rto_start variable is incremented and if
+ * the atomic result is one, then that CPU will try to take the rto_lock.
+ * This prevents high contention on the lock as the process handles all
+ * CPUs scheduling lower priority tasks.
+ *
+ * All CPUs that are scheduling a lower priority task will increment the
+ * rt_loop_next variable. This will make sure that the irq work iterator
+ * checks all RT overloaded CPUs whenever a CPU schedules a new lower
+ * priority task, even if the iterator is in the middle of a scan. Incrementing
+ * the rt_loop_next will cause the iterator to perform another scan.
  *
- * rq->rt.push_cpu holds the last cpu returned by this function,
- * or if this is the first instance, it must hold rq->cpu.
  */
 static int rto_next_cpu(struct rq *rq)
 {
-	int prev_cpu = rq->rt.push_cpu;
+	struct root_domain *rd = rq->rd;
+	int next;
 	int cpu;
 
-	cpu = cpumask_next(prev_cpu, rq->rd->rto_mask);
-
 	/*
-	 * If the previous cpu is less than the rq's CPU, then it already
-	 * passed the end of the mask, and has started from the beginning.
-	 * We end if the next CPU is greater or equal to rq's CPU.
+	 * When starting the IPI RT pushing, the rto_cpu is set to -1,
+	 * rt_next_cpu() will simply return the first CPU found in
+	 * the rto_mask.
+	 *
+	 * If rto_next_cpu() is called with rto_cpu is a valid cpu, it
+	 * will return the next CPU found in the rto_mask.
+	 *
+	 * If there are no more CPUs left in the rto_mask, then a check is made
+	 * against rto_loop and rto_loop_next. rto_loop is only updated with
+	 * the rto_lock held, but any CPU may increment the rto_loop_next
+	 * without any locking.
 	 */
-	if (prev_cpu < rq->cpu) {
-		if (cpu >= rq->cpu)
-			return nr_cpu_ids;
+	for (;;) {
 
-	} else if (cpu >= nr_cpu_ids) {
-		/*
-		 * We passed the end of the mask, start at the beginning.
-		 * If the result is greater or equal to the rq's CPU, then
-		 * the loop is finished.
-		 */
-		cpu = cpumask_first(rq->rd->rto_mask);
-		if (cpu >= rq->cpu)
-			return nr_cpu_ids;
-	}
-	rq->rt.push_cpu = cpu;
+		/* When rto_cpu is -1 this acts like cpumask_first() */
+		cpu = cpumask_next(rd->rto_cpu, rd->rto_mask);
 
-	/* Return cpu to let the caller know if the loop is finished or not */
-	return cpu;
-}
+		rd->rto_cpu = cpu;
 
-static int find_next_push_cpu(struct rq *rq)
-{
-	struct rq *next_rq;
-	int cpu;
+		if (cpu < nr_cpu_ids)
+			return cpu;
 
-	while (1) {
-		cpu = rto_next_cpu(rq);
-		if (cpu >= nr_cpu_ids)
-			break;
-		next_rq = cpu_rq(cpu);
+		rd->rto_cpu = -1;
+
+		/*
+		 * ACQUIRE ensures we see the @rto_mask changes
+		 * made prior to the @next value observed.
+		 *
+		 * Matches WMB in rt_set_overload().
+		 */
+		next = atomic_read_acquire(&rd->rto_loop_next);
 
-		/* Make sure the next rq can push to this rq */
-		if (next_rq->rt.highest_prio.next < rq->rt.highest_prio.curr)
+		if (rd->rto_loop == next)
 			break;
+
+		rd->rto_loop = next;
 	}
 
-	return cpu;
+	return -1;
 }
 
-#define RT_PUSH_IPI_EXECUTING		1
-#define RT_PUSH_IPI_RESTART		2
+static inline bool rto_start_trylock(atomic_t *v)
+{
+	return !atomic_cmpxchg_acquire(v, 0, 1);
+}
 
-/*
- * When a high priority task schedules out from a CPU and a lower priority
- * task is scheduled in, a check is made to see if there's any RT tasks
- * on other CPUs that are waiting to run because a higher priority RT task
- * is currently running on its CPU. In this case, the CPU with multiple RT
- * tasks queued on it (overloaded) needs to be notified that a CPU has opened
- * up that may be able to run one of its non-running queued RT tasks.
- *
- * On large CPU boxes, there's the case that several CPUs could schedule
- * a lower priority task at the same time, in which case it will look for
- * any overloaded CPUs that it could pull a task from. To do this, the runqueue
- * lock must be taken from that overloaded CPU. Having 10s of CPUs all fighting
- * for a single overloaded CPU's runqueue lock can produce a large latency.
- * (This has actually been observed on large boxes running cyclictest).
- * Instead of taking the runqueue lock of the overloaded CPU, each of the
- * CPUs that scheduled a lower priority task simply sends an IPI to the
- * overloaded CPU. An IPI is much cheaper than taking an runqueue lock with
- * lots of contention. The overloaded CPU will look to push its non-running
- * RT task off, and if it does, it can then ignore the other IPIs coming
- * in, and just pass those IPIs off to any other overloaded CPU.
- *
- * When a CPU schedules a lower priority task, it only sends an IPI to
- * the "next" CPU that has overloaded RT tasks. This prevents IPI storms,
- * as having 10 CPUs scheduling lower priority tasks and 10 CPUs with
- * RT overloaded tasks, would cause 100 IPIs to go out at once.
- *
- * The overloaded RT CPU, when receiving an IPI, will try to push off its
- * overloaded RT tasks and then send an IPI to the next CPU that has
- * overloaded RT tasks. This stops when all CPUs with overloaded RT tasks
- * have completed. Just because a CPU may have pushed off its own overloaded
- * RT task does not mean it should stop sending the IPI around to other
- * overloaded CPUs. There may be another RT task waiting to run on one of
- * those CPUs that are of higher priority than the one that was just
- * pushed.
- *
- * An optimization that could possibly be made is to make a CPU array similar
- * to the cpupri array mask of all running RT tasks, but for the overloaded
- * case, then the IPI could be sent to only the CPU with the highest priority
- * RT task waiting, and that CPU could send off further IPIs to the CPU with
- * the next highest waiting task. Since the overloaded case is much less likely
- * to happen, the complexity of this implementation may not be worth it.
- * Instead, just send an IPI around to all overloaded CPUs.
- *
- * The rq->rt.push_flags holds the status of the IPI that is going around.
- * A run queue can only send out a single IPI at a time. The possible flags
- * for rq->rt.push_flags are:
- *
- *    (None or zero):		No IPI is going around for the current rq
- *    RT_PUSH_IPI_EXECUTING:	An IPI for the rq is being passed around
- *    RT_PUSH_IPI_RESTART:	The priority of the running task for the rq
- *				has changed, and the IPI should restart
- *				circulating the overloaded CPUs again.
- *
- * rq->rt.push_cpu contains the CPU that is being sent the IPI. It is updated
- * before sending to the next CPU.
- *
- * Instead of having all CPUs that schedule a lower priority task send
- * an IPI to the same "first" CPU in the RT overload mask, they send it
- * to the next overloaded CPU after their own CPU. This helps distribute
- * the work when there's more than one overloaded CPU and multiple CPUs
- * scheduling in lower priority tasks.
- *
- * When a rq schedules a lower priority task than what was currently
- * running, the next CPU with overloaded RT tasks is examined first.
- * That is, if CPU 1 and 5 are overloaded, and CPU 3 schedules a lower
- * priority task, it will send an IPI first to CPU 5, then CPU 5 will
- * send to CPU 1 if it is still overloaded. CPU 1 will clear the
- * rq->rt.push_flags if RT_PUSH_IPI_RESTART is not set.
- *
- * The first CPU to notice IPI_RESTART is set, will clear that flag and then
- * send an IPI to the next overloaded CPU after the rq->cpu and not the next
- * CPU after push_cpu. That is, if CPU 1, 4 and 5 are overloaded when CPU 3
- * schedules a lower priority task, and the IPI_RESTART gets set while the
- * handling is being done on CPU 5, it will clear the flag and send it back to
- * CPU 4 instead of CPU 1.
- *
- * Note, the above logic can be disabled by turning off the sched_feature
- * RT_PUSH_IPI. Then the rq lock of the overloaded CPU will simply be
- * taken by the CPU requesting a pull and the waiting RT task will be pulled
- * by that CPU. This may be fine for machines with few CPUs.
- */
-static void tell_cpu_to_push(struct rq *rq)
+static inline void rto_start_unlock(atomic_t *v)
 {
-	int cpu;
+	atomic_set_release(v, 0);
+}
 
-	if (rq->rt.push_flags & RT_PUSH_IPI_EXECUTING) {
-		raw_spin_lock(&rq->rt.push_lock);
-		/* Make sure it's still executing */
-		if (rq->rt.push_flags & RT_PUSH_IPI_EXECUTING) {
-			/*
-			 * Tell the IPI to restart the loop as things have
-			 * changed since it started.
-			 */
-			rq->rt.push_flags |= RT_PUSH_IPI_RESTART;
-			raw_spin_unlock(&rq->rt.push_lock);
-			return;
-		}
-		raw_spin_unlock(&rq->rt.push_lock);
-	}
+static void tell_cpu_to_push(struct rq *rq)
+{
+	int cpu = -1;
 
-	/* When here, there's no IPI going around */
+	/* Keep the loop going if the IPI is currently active */
+	atomic_inc(&rq->rd->rto_loop_next);
 
-	rq->rt.push_cpu = rq->cpu;
-	cpu = find_next_push_cpu(rq);
-	if (cpu >= nr_cpu_ids)
+	/* Only one CPU can initiate a loop at a time */
+	if (!rto_start_trylock(&rq->rd->rto_loop_start))
 		return;
 
-	rq->rt.push_flags = RT_PUSH_IPI_EXECUTING;
+	raw_spin_lock(&rq->rd->rto_lock);
+
+	/*
+	 * The rto_cpu is updated under the lock, if it has a valid cpu
+	 * then the IPI is still running and will continue due to the
+	 * update to loop_next, and nothing needs to be done here.
+	 * Otherwise it is finishing up and an ipi needs to be sent.
+	 */
+	if (rq->rd->rto_cpu < 0)
+		cpu = rto_next_cpu(rq);
 
-	irq_work_queue_on(&rq->rt.push_work, cpu);
+	raw_spin_unlock(&rq->rd->rto_lock);
+
+	rto_start_unlock(&rq->rd->rto_loop_start);
+
+	if (cpu >= 0)
+		irq_work_queue_on(&rq->rd->rto_push_work, cpu);
 }
 
 /* Called from hardirq context */
-static void try_to_push_tasks(void *arg)
+void rto_push_irq_work_func(struct irq_work *work)
 {
-	struct rt_rq *rt_rq = arg;
-	struct rq *rq, *src_rq;
-	int this_cpu;
+	struct rq *rq;
 	int cpu;
 
-	this_cpu = rt_rq->push_cpu;
+	rq = this_rq();
 
-	/* Paranoid check */
-	BUG_ON(this_cpu != smp_processor_id());
-
-	rq = cpu_rq(this_cpu);
-	src_rq = rq_of_rt_rq(rt_rq);
-
-again:
+	/*
+	 * We do not need to grab the lock to check for has_pushable_tasks.
+	 * When it gets updated, a check is made if a push is possible.
+	 */
 	if (has_pushable_tasks(rq)) {
 		raw_spin_lock(&rq->lock);
-		push_rt_task(rq);
+		push_rt_tasks(rq);
 		raw_spin_unlock(&rq->lock);
 	}
 
-	/* Pass the IPI to the next rt overloaded queue */
-	raw_spin_lock(&rt_rq->push_lock);
-	/*
-	 * If the source queue changed since the IPI went out,
-	 * we need to restart the search from that CPU again.
-	 */
-	if (rt_rq->push_flags & RT_PUSH_IPI_RESTART) {
-		rt_rq->push_flags &= ~RT_PUSH_IPI_RESTART;
-		rt_rq->push_cpu = src_rq->cpu;
-	}
+	raw_spin_lock(&rq->rd->rto_lock);
 
-	cpu = find_next_push_cpu(src_rq);
+	/* Pass the IPI to the next rt overloaded queue */
+	cpu = rto_next_cpu(rq);
 
-	if (cpu >= nr_cpu_ids)
-		rt_rq->push_flags &= ~RT_PUSH_IPI_EXECUTING;
-	raw_spin_unlock(&rt_rq->push_lock);
+	raw_spin_unlock(&rq->rd->rto_lock);
 
-	if (cpu >= nr_cpu_ids)
+	if (cpu < 0)
 		return;
 
-	/*
-	 * It is possible that a restart caused this CPU to be
-	 * chosen again. Don't bother with an IPI, just see if we
-	 * have more to push.
-	 */
-	if (unlikely(cpu == rq->cpu))
-		goto again;
-
 	/* Try the next RT overloaded CPU */
-	irq_work_queue_on(&rt_rq->push_work, cpu);
-}
-
-static void push_irq_work_func(struct irq_work *work)
-{
-	struct rt_rq *rt_rq = container_of(work, struct rt_rq, push_work);
-
-	try_to_push_tasks(rt_rq);
+	irq_work_queue_on(&rq->rd->rto_push_work, cpu);
 }
 #endif /* HAVE_RT_PUSH_IPI */
 
diff --git a/kernel/sched/sched-pelt.h b/kernel/sched/sched-pelt.h
index cd200d16529e..a26473674fb7 100644
--- a/kernel/sched/sched-pelt.h
+++ b/kernel/sched/sched-pelt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Generated by Documentation/scheduler/sched-pelt; do not modify. */
 
 static const u32 runnable_avg_yN_inv[] = {
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 746ac78ff492..45ab0bf564e7 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <linux/sched.h>
 #include <linux/sched/autogroup.h>
@@ -226,7 +227,7 @@ struct dl_bw {
 static inline void __dl_update(struct dl_bw *dl_b, s64 bw);
 
 static inline
-void __dl_clear(struct dl_bw *dl_b, u64 tsk_bw, int cpus)
+void __dl_sub(struct dl_bw *dl_b, u64 tsk_bw, int cpus)
 {
 	dl_b->total_bw -= tsk_bw;
 	__dl_update(dl_b, (s32)tsk_bw / cpus);
@@ -255,7 +256,6 @@ extern int sched_dl_overflow(struct task_struct *p, int policy,
 extern void __setparam_dl(struct task_struct *p, const struct sched_attr *attr);
 extern void __getparam_dl(struct task_struct *p, struct sched_attr *attr);
 extern bool __checkparam_dl(const struct sched_attr *attr);
-extern void __dl_clear_params(struct task_struct *p);
 extern bool dl_param_changed(struct task_struct *p, const struct sched_attr *attr);
 extern int dl_task_can_attach(struct task_struct *p,
 			      const struct cpumask *cs_cpus_allowed);
@@ -418,6 +418,7 @@ struct cfs_bandwidth { };
 /* CFS-related fields in a runqueue */
 struct cfs_rq {
 	struct load_weight load;
+	unsigned long runnable_weight;
 	unsigned int nr_running, h_nr_running;
 
 	u64 exec_clock;
@@ -443,18 +444,22 @@ struct cfs_rq {
 	 * CFS load tracking
 	 */
 	struct sched_avg avg;
-	u64 runnable_load_sum;
-	unsigned long runnable_load_avg;
-#ifdef CONFIG_FAIR_GROUP_SCHED
-	unsigned long tg_load_avg_contrib;
-	unsigned long propagate_avg;
-#endif
-	atomic_long_t removed_load_avg, removed_util_avg;
 #ifndef CONFIG_64BIT
 	u64 load_last_update_time_copy;
 #endif
+	struct {
+		raw_spinlock_t	lock ____cacheline_aligned;
+		int		nr;
+		unsigned long	load_avg;
+		unsigned long	util_avg;
+		unsigned long	runnable_sum;
+	} removed;
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
+	unsigned long tg_load_avg_contrib;
+	long propagate;
+	long prop_runnable_sum;
+
 	/*
 	 *   h_load = weight * f(tg)
 	 *
@@ -501,7 +506,7 @@ static inline int rt_bandwidth_enabled(void)
 }
 
 /* RT IPI pull logic requires IRQ_WORK */
-#ifdef CONFIG_IRQ_WORK
+#if defined(CONFIG_IRQ_WORK) && defined(CONFIG_SMP)
 # define HAVE_RT_PUSH_IPI
 #endif
 
@@ -523,12 +528,6 @@ struct rt_rq {
 	unsigned long rt_nr_total;
 	int overloaded;
 	struct plist_head pushable_tasks;
-#ifdef HAVE_RT_PUSH_IPI
-	int push_flags;
-	int push_cpu;
-	struct irq_work push_work;
-	raw_spinlock_t push_lock;
-#endif
 #endif /* CONFIG_SMP */
 	int rt_queued;
 
@@ -637,6 +636,19 @@ struct root_domain {
 	struct dl_bw dl_bw;
 	struct cpudl cpudl;
 
+#ifdef HAVE_RT_PUSH_IPI
+	/*
+	 * For IPI pull requests, loop across the rto_mask.
+	 */
+	struct irq_work rto_push_work;
+	raw_spinlock_t rto_lock;
+	/* These are only updated and read within rto_lock */
+	int rto_loop;
+	int rto_cpu;
+	/* These atomics are updated outside of a lock */
+	atomic_t rto_loop_next;
+	atomic_t rto_loop_start;
+#endif
 	/*
 	 * The "RT overload" flag: it gets set if a CPU has more than
 	 * one runnable RT task.
@@ -654,6 +666,9 @@ extern void init_defrootdomain(void);
 extern int sched_init_domains(const struct cpumask *cpu_map);
 extern void rq_attach_root(struct rq *rq, struct root_domain *rd);
 
+#ifdef HAVE_RT_PUSH_IPI
+extern void rto_push_irq_work_func(struct irq_work *work);
+#endif
 #endif /* CONFIG_SMP */
 
 /*
@@ -1218,8 +1233,6 @@ static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
 # define const_debug const
 #endif
 
-extern const_debug unsigned int sysctl_sched_features;
-
 #define SCHED_FEAT(name, enabled)	\
 	__SCHED_FEAT_##name ,
 
@@ -1231,6 +1244,13 @@ enum {
 #undef SCHED_FEAT
 
 #if defined(CONFIG_SCHED_DEBUG) && defined(HAVE_JUMP_LABEL)
+
+/*
+ * To support run-time toggling of sched features, all the translation units
+ * (but core.c) reference the sysctl_sched_features defined in core.c.
+ */
+extern const_debug unsigned int sysctl_sched_features;
+
 #define SCHED_FEAT(name, enabled)					\
 static __always_inline bool static_branch_##name(struct static_key *key) \
 {									\
@@ -1238,13 +1258,27 @@ static __always_inline bool static_branch_##name(struct static_key *key) \
 }
 
 #include "features.h"
-
 #undef SCHED_FEAT
 
 extern struct static_key sched_feat_keys[__SCHED_FEAT_NR];
 #define sched_feat(x) (static_branch_##x(&sched_feat_keys[__SCHED_FEAT_##x]))
+
 #else /* !(SCHED_DEBUG && HAVE_JUMP_LABEL) */
+
+/*
+ * Each translation unit has its own copy of sysctl_sched_features to allow
+ * constants propagation at compile time and compiler optimization based on
+ * features default.
+ */
+#define SCHED_FEAT(name, enabled)	\
+	(1UL << __SCHED_FEAT_##name) * enabled |
+static const_debug __maybe_unused unsigned int sysctl_sched_features =
+#include "features.h"
+	0;
+#undef SCHED_FEAT
+
 #define sched_feat(x) (sysctl_sched_features & (1UL << __SCHED_FEAT_##x))
+
 #endif /* SCHED_DEBUG && HAVE_JUMP_LABEL */
 
 extern struct static_key_false sched_numa_balancing;
@@ -1529,6 +1563,8 @@ extern void init_sched_dl_class(void);
 extern void init_sched_rt_class(void);
 extern void init_sched_fair_class(void);
 
+extern void reweight_task(struct task_struct *p, int prio);
+
 extern void resched_curr(struct rq *rq);
 extern void resched_cpu(int cpu);
 
@@ -1951,6 +1987,8 @@ extern struct sched_entity *__pick_first_entity(struct cfs_rq *cfs_rq);
 extern struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq);
 
 #ifdef	CONFIG_SCHED_DEBUG
+extern bool sched_debug_enabled;
+
 extern void print_cfs_stats(struct seq_file *m, int cpu);
 extern void print_rt_stats(struct seq_file *m, int cpu);
 extern void print_dl_stats(struct seq_file *m, int cpu);
diff --git a/kernel/sched/stats.c b/kernel/sched/stats.c
index 87e2c9f0c33e..940b1fa1d2ce 100644
--- a/kernel/sched/stats.c
+++ b/kernel/sched/stats.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/slab.h>
 #include <linux/fs.h>
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index d5710651043b..baf500d12b7c 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifdef CONFIG_SCHEDSTATS
 
diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c
index 9f69fb630853..45caf90b24cd 100644
--- a/kernel/sched/stop_task.c
+++ b/kernel/sched/stop_task.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "sched.h"
 
 /*
diff --git a/kernel/sched/swait.c b/kernel/sched/swait.c
index 2227e183e202..9ff1555341ed 100644
--- a/kernel/sched/swait.c
+++ b/kernel/sched/swait.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sched/signal.h>
 #include <linux/swait.h>
 
diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c
index 5d0062cc10cb..034cbed7f88b 100644
--- a/kernel/sched/topology.c
+++ b/kernel/sched/topology.c
@@ -1,8 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Scheduler topology setup/handling methods
  */
 #include <linux/sched.h>
 #include <linux/mutex.h>
+#include <linux/sched/isolation.h>
 
 #include "sched.h"
 
@@ -14,11 +16,9 @@ cpumask_var_t sched_domains_tmpmask2;
 
 #ifdef CONFIG_SCHED_DEBUG
 
-static __read_mostly int sched_debug_enabled;
-
 static int __init sched_debug_setup(char *str)
 {
-	sched_debug_enabled = 1;
+	sched_debug_enabled = true;
 
 	return 0;
 }
@@ -270,6 +270,12 @@ static int init_rootdomain(struct root_domain *rd)
 	if (!zalloc_cpumask_var(&rd->rto_mask, GFP_KERNEL))
 		goto free_dlo_mask;
 
+#ifdef HAVE_RT_PUSH_IPI
+	rd->rto_cpu = -1;
+	raw_spin_lock_init(&rd->rto_lock);
+	init_irq_work(&rd->rto_push_work, rto_push_irq_work_func);
+#endif
+
 	init_dl_bw(&rd->dl_bw);
 	if (cpudl_init(&rd->cpudl) != 0)
 		goto free_rto_mask;
@@ -465,21 +471,6 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu)
 	update_top_cache_domain(cpu);
 }
 
-/* Setup the mask of CPUs configured for isolated domains */
-static int __init isolated_cpu_setup(char *str)
-{
-	int ret;
-
-	alloc_bootmem_cpumask_var(&cpu_isolated_map);
-	ret = cpulist_parse(str, cpu_isolated_map);
-	if (ret) {
-		pr_err("sched: Error, all isolcpus= values must be between 0 and %u\n", nr_cpu_ids);
-		return 0;
-	}
-	return 1;
-}
-__setup("isolcpus=", isolated_cpu_setup);
-
 struct s_data {
 	struct sched_domain ** __percpu sd;
 	struct root_domain	*rd;
@@ -1159,6 +1150,7 @@ sd_init(struct sched_domain_topology_level *tl,
 		sd->smt_gain = 1178; /* ~15% */
 
 	} else if (sd->flags & SD_SHARE_PKG_RESOURCES) {
+		sd->flags |= SD_PREFER_SIBLING;
 		sd->imbalance_pct = 117;
 		sd->cache_nice_tries = 1;
 		sd->busy_idx = 2;
@@ -1333,6 +1325,10 @@ void sched_init_numa(void)
 	if (!sched_domains_numa_distance)
 		return;
 
+	/* Includes NUMA identity node at level 0. */
+	sched_domains_numa_distance[level++] = curr_distance;
+	sched_domains_numa_levels = level;
+
 	/*
 	 * O(nr_nodes^2) deduplicating selection sort -- in order to find the
 	 * unique distances in the node_distance() table.
@@ -1380,8 +1376,7 @@ void sched_init_numa(void)
 		return;
 
 	/*
-	 * 'level' contains the number of unique distances, excluding the
-	 * identity distance node_distance(i,i).
+	 * 'level' contains the number of unique distances
 	 *
 	 * The sched_domains_numa_distance[] array includes the actual distance
 	 * numbers.
@@ -1443,9 +1438,18 @@ void sched_init_numa(void)
 		tl[i] = sched_domain_topology[i];
 
 	/*
+	 * Add the NUMA identity distance, aka single NODE.
+	 */
+	tl[i++] = (struct sched_domain_topology_level){
+		.mask = sd_numa_mask,
+		.numa_level = 0,
+		SD_INIT_NAME(NODE)
+	};
+
+	/*
 	 * .. and append 'j' levels of NUMA goodness.
 	 */
-	for (j = 0; j < level; i++, j++) {
+	for (j = 1; j < level; i++, j++) {
 		tl[i] = (struct sched_domain_topology_level){
 			.mask = sd_numa_mask,
 			.sd_flags = cpu_numa_flags,
@@ -1775,7 +1779,7 @@ int sched_init_domains(const struct cpumask *cpu_map)
 	doms_cur = alloc_sched_domains(ndoms_cur);
 	if (!doms_cur)
 		doms_cur = &fallback_doms;
-	cpumask_andnot(doms_cur[0], cpu_map, cpu_isolated_map);
+	cpumask_and(doms_cur[0], cpu_map, housekeeping_cpumask(HK_FLAG_DOMAIN));
 	err = build_sched_domains(doms_cur[0], NULL);
 	register_sched_domain_sysctl();
 
@@ -1858,7 +1862,8 @@ void partition_sched_domains(int ndoms_new, cpumask_var_t doms_new[],
 		doms_new = alloc_sched_domains(1);
 		if (doms_new) {
 			n = 1;
-			cpumask_andnot(doms_new[0], cpu_active_mask, cpu_isolated_map);
+			cpumask_and(doms_new[0], cpu_active_mask,
+				    housekeeping_cpumask(HK_FLAG_DOMAIN));
 		}
 	} else {
 		n = ndoms_new;
@@ -1881,7 +1886,8 @@ match1:
 	if (!doms_new) {
 		n = 0;
 		doms_new = &fallback_doms;
-		cpumask_andnot(doms_new[0], cpu_active_mask, cpu_isolated_map);
+		cpumask_and(doms_new[0], cpu_active_mask,
+			    housekeeping_cpumask(HK_FLAG_DOMAIN));
 	}
 
 	/* Build new domains: */
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index d6afed6d0752..98feab7933c7 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -53,6 +53,12 @@ void remove_wait_queue(struct wait_queue_head *wq_head, struct wait_queue_entry
 }
 EXPORT_SYMBOL(remove_wait_queue);
 
+/*
+ * Scan threshold to break wait queue walk.
+ * This allows a waker to take a break from holding the
+ * wait queue lock during the wait queue walk.
+ */
+#define WAITQUEUE_WALK_BREAK_CNT 64
 
 /*
  * The core wakeup function. Non-exclusive wakeups (nr_exclusive == 0) just
@@ -63,18 +69,67 @@ EXPORT_SYMBOL(remove_wait_queue);
  * started to run but is not in state TASK_RUNNING. try_to_wake_up() returns
  * zero in this (rare) case, and we handle it by continuing to scan the queue.
  */
-static void __wake_up_common(struct wait_queue_head *wq_head, unsigned int mode,
-			int nr_exclusive, int wake_flags, void *key)
+static int __wake_up_common(struct wait_queue_head *wq_head, unsigned int mode,
+			int nr_exclusive, int wake_flags, void *key,
+			wait_queue_entry_t *bookmark)
 {
 	wait_queue_entry_t *curr, *next;
+	int cnt = 0;
+
+	if (bookmark && (bookmark->flags & WQ_FLAG_BOOKMARK)) {
+		curr = list_next_entry(bookmark, entry);
+
+		list_del(&bookmark->entry);
+		bookmark->flags = 0;
+	} else
+		curr = list_first_entry(&wq_head->head, wait_queue_entry_t, entry);
 
-	list_for_each_entry_safe(curr, next, &wq_head->head, entry) {
+	if (&curr->entry == &wq_head->head)
+		return nr_exclusive;
+
+	list_for_each_entry_safe_from(curr, next, &wq_head->head, entry) {
 		unsigned flags = curr->flags;
-		int ret = curr->func(curr, mode, wake_flags, key);
+		int ret;
+
+		if (flags & WQ_FLAG_BOOKMARK)
+			continue;
+
+		ret = curr->func(curr, mode, wake_flags, key);
 		if (ret < 0)
 			break;
 		if (ret && (flags & WQ_FLAG_EXCLUSIVE) && !--nr_exclusive)
 			break;
+
+		if (bookmark && (++cnt > WAITQUEUE_WALK_BREAK_CNT) &&
+				(&next->entry != &wq_head->head)) {
+			bookmark->flags = WQ_FLAG_BOOKMARK;
+			list_add_tail(&bookmark->entry, &next->entry);
+			break;
+		}
+	}
+	return nr_exclusive;
+}
+
+static void __wake_up_common_lock(struct wait_queue_head *wq_head, unsigned int mode,
+			int nr_exclusive, int wake_flags, void *key)
+{
+	unsigned long flags;
+	wait_queue_entry_t bookmark;
+
+	bookmark.flags = 0;
+	bookmark.private = NULL;
+	bookmark.func = NULL;
+	INIT_LIST_HEAD(&bookmark.entry);
+
+	spin_lock_irqsave(&wq_head->lock, flags);
+	nr_exclusive = __wake_up_common(wq_head, mode, nr_exclusive, wake_flags, key, &bookmark);
+	spin_unlock_irqrestore(&wq_head->lock, flags);
+
+	while (bookmark.flags & WQ_FLAG_BOOKMARK) {
+		spin_lock_irqsave(&wq_head->lock, flags);
+		nr_exclusive = __wake_up_common(wq_head, mode, nr_exclusive,
+						wake_flags, key, &bookmark);
+		spin_unlock_irqrestore(&wq_head->lock, flags);
 	}
 }
 
@@ -91,11 +146,7 @@ static void __wake_up_common(struct wait_queue_head *wq_head, unsigned int mode,
 void __wake_up(struct wait_queue_head *wq_head, unsigned int mode,
 			int nr_exclusive, void *key)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&wq_head->lock, flags);
-	__wake_up_common(wq_head, mode, nr_exclusive, 0, key);
-	spin_unlock_irqrestore(&wq_head->lock, flags);
+	__wake_up_common_lock(wq_head, mode, nr_exclusive, 0, key);
 }
 EXPORT_SYMBOL(__wake_up);
 
@@ -104,16 +155,23 @@ EXPORT_SYMBOL(__wake_up);
  */
 void __wake_up_locked(struct wait_queue_head *wq_head, unsigned int mode, int nr)
 {
-	__wake_up_common(wq_head, mode, nr, 0, NULL);
+	__wake_up_common(wq_head, mode, nr, 0, NULL, NULL);
 }
 EXPORT_SYMBOL_GPL(__wake_up_locked);
 
 void __wake_up_locked_key(struct wait_queue_head *wq_head, unsigned int mode, void *key)
 {
-	__wake_up_common(wq_head, mode, 1, 0, key);
+	__wake_up_common(wq_head, mode, 1, 0, key, NULL);
 }
 EXPORT_SYMBOL_GPL(__wake_up_locked_key);
 
+void __wake_up_locked_key_bookmark(struct wait_queue_head *wq_head,
+		unsigned int mode, void *key, wait_queue_entry_t *bookmark)
+{
+	__wake_up_common(wq_head, mode, 1, 0, key, bookmark);
+}
+EXPORT_SYMBOL_GPL(__wake_up_locked_key_bookmark);
+
 /**
  * __wake_up_sync_key - wake up threads blocked on a waitqueue.
  * @wq_head: the waitqueue
@@ -134,7 +192,6 @@ EXPORT_SYMBOL_GPL(__wake_up_locked_key);
 void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode,
 			int nr_exclusive, void *key)
 {
-	unsigned long flags;
 	int wake_flags = 1; /* XXX WF_SYNC */
 
 	if (unlikely(!wq_head))
@@ -143,9 +200,7 @@ void __wake_up_sync_key(struct wait_queue_head *wq_head, unsigned int mode,
 	if (unlikely(nr_exclusive != 1))
 		wake_flags = 0;
 
-	spin_lock_irqsave(&wq_head->lock, flags);
-	__wake_up_common(wq_head, mode, nr_exclusive, wake_flags, key);
-	spin_unlock_irqrestore(&wq_head->lock, flags);
+	__wake_up_common_lock(wq_head, mode, nr_exclusive, wake_flags, key);
 }
 EXPORT_SYMBOL_GPL(__wake_up_sync_key);
 
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 98b59b5db90b..5f0dfb2abb8d 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/seccomp.c
  *
@@ -17,11 +18,13 @@
 #include <linux/audit.h>
 #include <linux/compat.h>
 #include <linux/coredump.h>
+#include <linux/kmemleak.h>
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
 #include <linux/seccomp.h>
 #include <linux/slab.h>
 #include <linux/syscalls.h>
+#include <linux/sysctl.h>
 
 #ifdef CONFIG_HAVE_ARCH_SECCOMP_FILTER
 #include <asm/syscall.h>
@@ -42,6 +45,7 @@
  *         get/put helpers should be used when accessing an instance
  *         outside of a lifetime-guarded section.  In general, this
  *         is only needed for handling filters shared across tasks.
+ * @log: true if all actions except for SECCOMP_RET_ALLOW should be logged
  * @prev: points to a previously installed, or inherited, filter
  * @prog: the BPF program to evaluate
  *
@@ -57,6 +61,7 @@
  */
 struct seccomp_filter {
 	refcount_t usage;
+	bool log;
 	struct seccomp_filter *prev;
 	struct bpf_prog *prog;
 };
@@ -171,20 +176,25 @@ static int seccomp_check_filter(struct sock_filter *filter, unsigned int flen)
 /**
  * seccomp_run_filters - evaluates all seccomp filters against @sd
  * @sd: optional seccomp data to be passed to filters
+ * @match: stores struct seccomp_filter that resulted in the return value,
+ *         unless filter returned SECCOMP_RET_ALLOW, in which case it will
+ *         be unchanged.
  *
  * Returns valid seccomp BPF response codes.
  */
-static u32 seccomp_run_filters(const struct seccomp_data *sd)
+#define ACTION_ONLY(ret) ((s32)((ret) & (SECCOMP_RET_ACTION_FULL)))
+static u32 seccomp_run_filters(const struct seccomp_data *sd,
+			       struct seccomp_filter **match)
 {
 	struct seccomp_data sd_local;
 	u32 ret = SECCOMP_RET_ALLOW;
 	/* Make sure cross-thread synced filter points somewhere sane. */
 	struct seccomp_filter *f =
-			lockless_dereference(current->seccomp.filter);
+			READ_ONCE(current->seccomp.filter);
 
 	/* Ensure unexpected behavior doesn't result in failing open. */
 	if (unlikely(WARN_ON(f == NULL)))
-		return SECCOMP_RET_KILL;
+		return SECCOMP_RET_KILL_PROCESS;
 
 	if (!sd) {
 		populate_seccomp_data(&sd_local);
@@ -198,8 +208,10 @@ static u32 seccomp_run_filters(const struct seccomp_data *sd)
 	for (; f; f = f->prev) {
 		u32 cur_ret = BPF_PROG_RUN(f->prog, sd);
 
-		if ((cur_ret & SECCOMP_RET_ACTION) < (ret & SECCOMP_RET_ACTION))
+		if (ACTION_ONLY(cur_ret) < ACTION_ONLY(ret)) {
 			ret = cur_ret;
+			*match = f;
+		}
 	}
 	return ret;
 }
@@ -444,6 +456,10 @@ static long seccomp_attach_filter(unsigned int flags,
 			return ret;
 	}
 
+	/* Set log flag, if present. */
+	if (flags & SECCOMP_FILTER_FLAG_LOG)
+		filter->log = true;
+
 	/*
 	 * If there is an existing filter, make it the prev and don't drop its
 	 * task reference.
@@ -458,14 +474,19 @@ static long seccomp_attach_filter(unsigned int flags,
 	return 0;
 }
 
+static void __get_seccomp_filter(struct seccomp_filter *filter)
+{
+	/* Reference count is bounded by the number of total processes. */
+	refcount_inc(&filter->usage);
+}
+
 /* get_seccomp_filter - increments the reference count of the filter on @tsk */
 void get_seccomp_filter(struct task_struct *tsk)
 {
 	struct seccomp_filter *orig = tsk->seccomp.filter;
 	if (!orig)
 		return;
-	/* Reference count is bounded by the number of total processes. */
-	refcount_inc(&orig->usage);
+	__get_seccomp_filter(orig);
 }
 
 static inline void seccomp_filter_free(struct seccomp_filter *filter)
@@ -476,10 +497,8 @@ static inline void seccomp_filter_free(struct seccomp_filter *filter)
 	}
 }
 
-/* put_seccomp_filter - decrements the ref count of tsk->seccomp.filter */
-void put_seccomp_filter(struct task_struct *tsk)
+static void __put_seccomp_filter(struct seccomp_filter *orig)
 {
-	struct seccomp_filter *orig = tsk->seccomp.filter;
 	/* Clean up single-reference branches iteratively. */
 	while (orig && refcount_dec_and_test(&orig->usage)) {
 		struct seccomp_filter *freeme = orig;
@@ -488,6 +507,12 @@ void put_seccomp_filter(struct task_struct *tsk)
 	}
 }
 
+/* put_seccomp_filter - decrements the ref count of tsk->seccomp.filter */
+void put_seccomp_filter(struct task_struct *tsk)
+{
+	__put_seccomp_filter(tsk->seccomp.filter);
+}
+
 static void seccomp_init_siginfo(siginfo_t *info, int syscall, int reason)
 {
 	memset(info, 0, sizeof(*info));
@@ -514,6 +539,65 @@ static void seccomp_send_sigsys(int syscall, int reason)
 }
 #endif	/* CONFIG_SECCOMP_FILTER */
 
+/* For use with seccomp_actions_logged */
+#define SECCOMP_LOG_KILL_PROCESS	(1 << 0)
+#define SECCOMP_LOG_KILL_THREAD		(1 << 1)
+#define SECCOMP_LOG_TRAP		(1 << 2)
+#define SECCOMP_LOG_ERRNO		(1 << 3)
+#define SECCOMP_LOG_TRACE		(1 << 4)
+#define SECCOMP_LOG_LOG			(1 << 5)
+#define SECCOMP_LOG_ALLOW		(1 << 6)
+
+static u32 seccomp_actions_logged = SECCOMP_LOG_KILL_PROCESS |
+				    SECCOMP_LOG_KILL_THREAD  |
+				    SECCOMP_LOG_TRAP  |
+				    SECCOMP_LOG_ERRNO |
+				    SECCOMP_LOG_TRACE |
+				    SECCOMP_LOG_LOG;
+
+static inline void seccomp_log(unsigned long syscall, long signr, u32 action,
+			       bool requested)
+{
+	bool log = false;
+
+	switch (action) {
+	case SECCOMP_RET_ALLOW:
+		break;
+	case SECCOMP_RET_TRAP:
+		log = requested && seccomp_actions_logged & SECCOMP_LOG_TRAP;
+		break;
+	case SECCOMP_RET_ERRNO:
+		log = requested && seccomp_actions_logged & SECCOMP_LOG_ERRNO;
+		break;
+	case SECCOMP_RET_TRACE:
+		log = requested && seccomp_actions_logged & SECCOMP_LOG_TRACE;
+		break;
+	case SECCOMP_RET_LOG:
+		log = seccomp_actions_logged & SECCOMP_LOG_LOG;
+		break;
+	case SECCOMP_RET_KILL_THREAD:
+		log = seccomp_actions_logged & SECCOMP_LOG_KILL_THREAD;
+		break;
+	case SECCOMP_RET_KILL_PROCESS:
+	default:
+		log = seccomp_actions_logged & SECCOMP_LOG_KILL_PROCESS;
+	}
+
+	/*
+	 * Force an audit message to be emitted when the action is RET_KILL_*,
+	 * RET_LOG, or the FILTER_FLAG_LOG bit was set and the action is
+	 * allowed to be logged by the admin.
+	 */
+	if (log)
+		return __audit_seccomp(syscall, signr, action);
+
+	/*
+	 * Let the audit subsystem decide if the action should be audited based
+	 * on whether the current task itself is being audited.
+	 */
+	return audit_seccomp(syscall, signr, action);
+}
+
 /*
  * Secure computing mode 1 allows only read/write/exit/sigreturn.
  * To be fully secure this must be combined with rlimit
@@ -539,7 +623,7 @@ static void __secure_computing_strict(int this_syscall)
 #ifdef SECCOMP_DEBUG
 	dump_stack();
 #endif
-	audit_seccomp(this_syscall, SIGKILL, SECCOMP_RET_KILL);
+	seccomp_log(this_syscall, SIGKILL, SECCOMP_RET_KILL_THREAD, true);
 	do_exit(SIGKILL);
 }
 
@@ -566,6 +650,7 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
 			    const bool recheck_after_trace)
 {
 	u32 filter_ret, action;
+	struct seccomp_filter *match = NULL;
 	int data;
 
 	/*
@@ -574,9 +659,9 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
 	 */
 	rmb();
 
-	filter_ret = seccomp_run_filters(sd);
+	filter_ret = seccomp_run_filters(sd, &match);
 	data = filter_ret & SECCOMP_RET_DATA;
-	action = filter_ret & SECCOMP_RET_ACTION;
+	action = filter_ret & SECCOMP_RET_ACTION_FULL;
 
 	switch (action) {
 	case SECCOMP_RET_ERRNO:
@@ -637,14 +722,25 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
 
 		return 0;
 
+	case SECCOMP_RET_LOG:
+		seccomp_log(this_syscall, 0, action, true);
+		return 0;
+
 	case SECCOMP_RET_ALLOW:
+		/*
+		 * Note that the "match" filter will always be NULL for
+		 * this action since SECCOMP_RET_ALLOW is the starting
+		 * state in seccomp_run_filters().
+		 */
 		return 0;
 
-	case SECCOMP_RET_KILL:
+	case SECCOMP_RET_KILL_THREAD:
+	case SECCOMP_RET_KILL_PROCESS:
 	default:
-		audit_seccomp(this_syscall, SIGSYS, action);
+		seccomp_log(this_syscall, SIGSYS, action, true);
 		/* Dump core only if this is the last remaining thread. */
-		if (get_nr_threads(current) == 1) {
+		if (action == SECCOMP_RET_KILL_PROCESS ||
+		    get_nr_threads(current) == 1) {
 			siginfo_t info;
 
 			/* Show the original registers in the dump. */
@@ -653,13 +749,16 @@ static int __seccomp_filter(int this_syscall, const struct seccomp_data *sd,
 			seccomp_init_siginfo(&info, this_syscall, data);
 			do_coredump(&info);
 		}
-		do_exit(SIGSYS);
+		if (action == SECCOMP_RET_KILL_PROCESS)
+			do_group_exit(SIGSYS);
+		else
+			do_exit(SIGSYS);
 	}
 
 	unreachable();
 
 skip:
-	audit_seccomp(this_syscall, 0, action);
+	seccomp_log(this_syscall, 0, action, match ? match->log : false);
 	return -1;
 }
 #else
@@ -794,6 +893,29 @@ static inline long seccomp_set_mode_filter(unsigned int flags,
 }
 #endif
 
+static long seccomp_get_action_avail(const char __user *uaction)
+{
+	u32 action;
+
+	if (copy_from_user(&action, uaction, sizeof(action)))
+		return -EFAULT;
+
+	switch (action) {
+	case SECCOMP_RET_KILL_PROCESS:
+	case SECCOMP_RET_KILL_THREAD:
+	case SECCOMP_RET_TRAP:
+	case SECCOMP_RET_ERRNO:
+	case SECCOMP_RET_TRACE:
+	case SECCOMP_RET_LOG:
+	case SECCOMP_RET_ALLOW:
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
 /* Common entry point for both prctl and syscall. */
 static long do_seccomp(unsigned int op, unsigned int flags,
 		       const char __user *uargs)
@@ -805,6 +927,11 @@ static long do_seccomp(unsigned int op, unsigned int flags,
 		return seccomp_set_mode_strict();
 	case SECCOMP_SET_MODE_FILTER:
 		return seccomp_set_mode_filter(flags, uargs);
+	case SECCOMP_GET_ACTION_AVAIL:
+		if (flags != 0)
+			return -EINVAL;
+
+		return seccomp_get_action_avail(uargs);
 	default:
 		return -EINVAL;
 	}
@@ -908,13 +1035,13 @@ long seccomp_get_filter(struct task_struct *task, unsigned long filter_off,
 	if (!data)
 		goto out;
 
-	get_seccomp_filter(task);
+	__get_seccomp_filter(filter);
 	spin_unlock_irq(&task->sighand->siglock);
 
 	if (copy_to_user(data, fprog->filter, bpf_classic_proglen(fprog)))
 		ret = -EFAULT;
 
-	put_seccomp_filter(task);
+	__put_seccomp_filter(filter);
 	return ret;
 
 out:
@@ -922,3 +1049,185 @@ out:
 	return ret;
 }
 #endif
+
+#ifdef CONFIG_SYSCTL
+
+/* Human readable action names for friendly sysctl interaction */
+#define SECCOMP_RET_KILL_PROCESS_NAME	"kill_process"
+#define SECCOMP_RET_KILL_THREAD_NAME	"kill_thread"
+#define SECCOMP_RET_TRAP_NAME		"trap"
+#define SECCOMP_RET_ERRNO_NAME		"errno"
+#define SECCOMP_RET_TRACE_NAME		"trace"
+#define SECCOMP_RET_LOG_NAME		"log"
+#define SECCOMP_RET_ALLOW_NAME		"allow"
+
+static const char seccomp_actions_avail[] =
+				SECCOMP_RET_KILL_PROCESS_NAME	" "
+				SECCOMP_RET_KILL_THREAD_NAME	" "
+				SECCOMP_RET_TRAP_NAME		" "
+				SECCOMP_RET_ERRNO_NAME		" "
+				SECCOMP_RET_TRACE_NAME		" "
+				SECCOMP_RET_LOG_NAME		" "
+				SECCOMP_RET_ALLOW_NAME;
+
+struct seccomp_log_name {
+	u32		log;
+	const char	*name;
+};
+
+static const struct seccomp_log_name seccomp_log_names[] = {
+	{ SECCOMP_LOG_KILL_PROCESS, SECCOMP_RET_KILL_PROCESS_NAME },
+	{ SECCOMP_LOG_KILL_THREAD, SECCOMP_RET_KILL_THREAD_NAME },
+	{ SECCOMP_LOG_TRAP, SECCOMP_RET_TRAP_NAME },
+	{ SECCOMP_LOG_ERRNO, SECCOMP_RET_ERRNO_NAME },
+	{ SECCOMP_LOG_TRACE, SECCOMP_RET_TRACE_NAME },
+	{ SECCOMP_LOG_LOG, SECCOMP_RET_LOG_NAME },
+	{ SECCOMP_LOG_ALLOW, SECCOMP_RET_ALLOW_NAME },
+	{ }
+};
+
+static bool seccomp_names_from_actions_logged(char *names, size_t size,
+					      u32 actions_logged)
+{
+	const struct seccomp_log_name *cur;
+	bool append_space = false;
+
+	for (cur = seccomp_log_names; cur->name && size; cur++) {
+		ssize_t ret;
+
+		if (!(actions_logged & cur->log))
+			continue;
+
+		if (append_space) {
+			ret = strscpy(names, " ", size);
+			if (ret < 0)
+				return false;
+
+			names += ret;
+			size -= ret;
+		} else
+			append_space = true;
+
+		ret = strscpy(names, cur->name, size);
+		if (ret < 0)
+			return false;
+
+		names += ret;
+		size -= ret;
+	}
+
+	return true;
+}
+
+static bool seccomp_action_logged_from_name(u32 *action_logged,
+					    const char *name)
+{
+	const struct seccomp_log_name *cur;
+
+	for (cur = seccomp_log_names; cur->name; cur++) {
+		if (!strcmp(cur->name, name)) {
+			*action_logged = cur->log;
+			return true;
+		}
+	}
+
+	return false;
+}
+
+static bool seccomp_actions_logged_from_names(u32 *actions_logged, char *names)
+{
+	char *name;
+
+	*actions_logged = 0;
+	while ((name = strsep(&names, " ")) && *name) {
+		u32 action_logged = 0;
+
+		if (!seccomp_action_logged_from_name(&action_logged, name))
+			return false;
+
+		*actions_logged |= action_logged;
+	}
+
+	return true;
+}
+
+static int seccomp_actions_logged_handler(struct ctl_table *ro_table, int write,
+					  void __user *buffer, size_t *lenp,
+					  loff_t *ppos)
+{
+	char names[sizeof(seccomp_actions_avail)];
+	struct ctl_table table;
+	int ret;
+
+	if (write && !capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	memset(names, 0, sizeof(names));
+
+	if (!write) {
+		if (!seccomp_names_from_actions_logged(names, sizeof(names),
+						       seccomp_actions_logged))
+			return -EINVAL;
+	}
+
+	table = *ro_table;
+	table.data = names;
+	table.maxlen = sizeof(names);
+	ret = proc_dostring(&table, write, buffer, lenp, ppos);
+	if (ret)
+		return ret;
+
+	if (write) {
+		u32 actions_logged;
+
+		if (!seccomp_actions_logged_from_names(&actions_logged,
+						       table.data))
+			return -EINVAL;
+
+		if (actions_logged & SECCOMP_LOG_ALLOW)
+			return -EINVAL;
+
+		seccomp_actions_logged = actions_logged;
+	}
+
+	return 0;
+}
+
+static struct ctl_path seccomp_sysctl_path[] = {
+	{ .procname = "kernel", },
+	{ .procname = "seccomp", },
+	{ }
+};
+
+static struct ctl_table seccomp_sysctl_table[] = {
+	{
+		.procname	= "actions_avail",
+		.data		= (void *) &seccomp_actions_avail,
+		.maxlen		= sizeof(seccomp_actions_avail),
+		.mode		= 0444,
+		.proc_handler	= proc_dostring,
+	},
+	{
+		.procname	= "actions_logged",
+		.mode		= 0644,
+		.proc_handler	= seccomp_actions_logged_handler,
+	},
+	{ }
+};
+
+static int __init seccomp_sysctl_init(void)
+{
+	struct ctl_table_header *hdr;
+
+	hdr = register_sysctl_paths(seccomp_sysctl_path, seccomp_sysctl_table);
+	if (!hdr)
+		pr_warn("seccomp: sysctl registration failed\n");
+	else
+		kmemleak_not_leak(hdr);
+
+	return 0;
+}
+
+device_initcall(seccomp_sysctl_init)
+
+#endif /* CONFIG_SYSCTL */
diff --git a/kernel/signal.c b/kernel/signal.c
index 800a18f77732..8dcd8825b2de 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2698,7 +2698,7 @@ enum siginfo_layout siginfo_layout(int sig, int si_code)
 			[SIGSEGV] = { NSIGSEGV, SIL_FAULT },
 			[SIGBUS]  = { NSIGBUS,  SIL_FAULT },
 			[SIGTRAP] = { NSIGTRAP, SIL_FAULT },
-#if defined(SIGMET) && defined(NSIGEMT)
+#if defined(SIGEMT) && defined(NSIGEMT)
 			[SIGEMT]  = { NSIGEMT,  SIL_FAULT },
 #endif
 			[SIGCHLD] = { NSIGCHLD, SIL_CHLD },
diff --git a/kernel/smp.c b/kernel/smp.c
index c94dd85c8d41..084c8b3a2681 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -213,7 +213,7 @@ static void flush_smp_call_function_queue(bool warn_cpu_offline)
 	call_single_data_t *csd, *csd_next;
 	static bool warned;
 
-	WARN_ON(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	head = this_cpu_ptr(&call_single_queue);
 	entry = llist_del_all(head);
diff --git a/kernel/smpboot.c b/kernel/smpboot.c
index 1d71c051a951..5043e7433f4b 100644
--- a/kernel/smpboot.c
+++ b/kernel/smpboot.c
@@ -344,39 +344,30 @@ EXPORT_SYMBOL_GPL(smpboot_unregister_percpu_thread);
  * by the client, but only by calling this function.
  * This function can only be called on a registered smp_hotplug_thread.
  */
-int smpboot_update_cpumask_percpu_thread(struct smp_hotplug_thread *plug_thread,
-					 const struct cpumask *new)
+void smpboot_update_cpumask_percpu_thread(struct smp_hotplug_thread *plug_thread,
+					  const struct cpumask *new)
 {
 	struct cpumask *old = plug_thread->cpumask;
-	cpumask_var_t tmp;
+	static struct cpumask tmp;
 	unsigned int cpu;
 
-	if (!alloc_cpumask_var(&tmp, GFP_KERNEL))
-		return -ENOMEM;
-
-	get_online_cpus();
+	lockdep_assert_cpus_held();
 	mutex_lock(&smpboot_threads_lock);
 
 	/* Park threads that were exclusively enabled on the old mask. */
-	cpumask_andnot(tmp, old, new);
-	for_each_cpu_and(cpu, tmp, cpu_online_mask)
+	cpumask_andnot(&tmp, old, new);
+	for_each_cpu_and(cpu, &tmp, cpu_online_mask)
 		smpboot_park_thread(plug_thread, cpu);
 
 	/* Unpark threads that are exclusively enabled on the new mask. */
-	cpumask_andnot(tmp, new, old);
-	for_each_cpu_and(cpu, tmp, cpu_online_mask)
+	cpumask_andnot(&tmp, new, old);
+	for_each_cpu_and(cpu, &tmp, cpu_online_mask)
 		smpboot_unpark_thread(plug_thread, cpu);
 
 	cpumask_copy(old, new);
 
 	mutex_unlock(&smpboot_threads_lock);
-	put_online_cpus();
-
-	free_cpumask_var(tmp);
-
-	return 0;
 }
-EXPORT_SYMBOL_GPL(smpboot_update_cpumask_percpu_thread);
 
 static DEFINE_PER_CPU(atomic_t, cpu_hotplug_state) = ATOMIC_INIT(CPU_POST_DEAD);
 
diff --git a/kernel/smpboot.h b/kernel/smpboot.h
index 485b81cfab34..34dd3d7ba40b 100644
--- a/kernel/smpboot.h
+++ b/kernel/smpboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SMPBOOT_H
 #define SMPBOOT_H
 
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 4e09821f9d9e..662f7b1b7a78 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -137,7 +137,7 @@ EXPORT_SYMBOL(__local_bh_disable_ip);
 
 static void __local_bh_enable(unsigned int cnt)
 {
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	if (softirq_count() == (cnt & SOFTIRQ_MASK))
 		trace_softirqs_on(_RET_IP_);
@@ -158,7 +158,8 @@ EXPORT_SYMBOL(_local_bh_enable);
 
 void __local_bh_enable_ip(unsigned long ip, unsigned int cnt)
 {
-	WARN_ON_ONCE(in_irq() || irqs_disabled());
+	WARN_ON_ONCE(in_irq());
+	lockdep_assert_irqs_enabled();
 #ifdef CONFIG_TRACE_IRQFLAGS
 	local_irq_disable();
 #endif
@@ -396,9 +397,8 @@ void irq_exit(void)
 #ifndef __ARCH_IRQ_EXIT_IRQS_DISABLED
 	local_irq_disable();
 #else
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 #endif
-
 	account_irq_exit_time(current);
 	preempt_count_sub(HARDIRQ_OFFSET);
 	if (!in_interrupt() && local_softirq_pending())
@@ -488,7 +488,7 @@ EXPORT_SYMBOL(__tasklet_hi_schedule);
 
 void __tasklet_hi_schedule_first(struct tasklet_struct *t)
 {
-	BUG_ON(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	t->next = __this_cpu_read(tasklet_hi_vec.head);
 	__this_cpu_write(tasklet_hi_vec.head, t);
diff --git a/kernel/sys.c b/kernel/sys.c
index 9aebc2935013..524a4cb9bbe2 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/kernel/sys.c
  *
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index 8acef8576ce9..b5189762d275 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/linkage.h>
 #include <linux/errno.h>
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 6648fbbb8157..9576bd582d4a 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -367,7 +367,8 @@ static struct ctl_table kern_table[] = {
 		.data		= &sysctl_sched_time_avg,
 		.maxlen		= sizeof(unsigned int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &one,
 	},
 #ifdef CONFIG_SCHEDSTATS
 	{
@@ -871,9 +872,9 @@ static struct ctl_table kern_table[] = {
 #if defined(CONFIG_LOCKUP_DETECTOR)
 	{
 		.procname       = "watchdog",
-		.data           = &watchdog_user_enabled,
-		.maxlen         = sizeof (int),
-		.mode           = 0644,
+		.data		= &watchdog_user_enabled,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
 		.proc_handler   = proc_watchdog,
 		.extra1		= &zero,
 		.extra2		= &one,
@@ -889,16 +890,12 @@ static struct ctl_table kern_table[] = {
 	},
 	{
 		.procname       = "nmi_watchdog",
-		.data           = &nmi_watchdog_enabled,
-		.maxlen         = sizeof (int),
-		.mode           = 0644,
+		.data		= &nmi_watchdog_user_enabled,
+		.maxlen		= sizeof(int),
+		.mode		= NMI_WATCHDOG_SYSCTL_PERM,
 		.proc_handler   = proc_nmi_watchdog,
 		.extra1		= &zero,
-#if defined(CONFIG_HAVE_NMI_WATCHDOG) || defined(CONFIG_HARDLOCKUP_DETECTOR)
 		.extra2		= &one,
-#else
-		.extra2		= &zero,
-#endif
 	},
 	{
 		.procname	= "watchdog_cpumask",
@@ -910,9 +907,9 @@ static struct ctl_table kern_table[] = {
 #ifdef CONFIG_SOFTLOCKUP_DETECTOR
 	{
 		.procname       = "soft_watchdog",
-		.data           = &soft_watchdog_enabled,
-		.maxlen         = sizeof (int),
-		.mode           = 0644,
+		.data		= &soft_watchdog_user_enabled,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
 		.proc_handler   = proc_soft_watchdog,
 		.extra1		= &zero,
 		.extra2		= &one,
@@ -1345,11 +1342,6 @@ static struct ctl_table vm_table[] = {
 		.extra1		= &zero,
 	},
 	{
-		.procname       = "nr_pdflush_threads",
-		.mode           = 0444 /* read-only */,
-		.proc_handler   = pdflush_proc_obsolete,
-	},
-	{
 		.procname	= "swappiness",
 		.data		= &vm_swappiness,
 		.maxlen		= sizeof(vm_swappiness),
@@ -2187,8 +2179,6 @@ static int do_proc_douintvec_conv(unsigned long *lvalp,
 	if (write) {
 		if (*lvalp > UINT_MAX)
 			return -EINVAL;
-		if (*lvalp > UINT_MAX)
-			return -EINVAL;
 		*valp = *lvalp;
 	} else {
 		unsigned int val = *valp;
diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index 02e1859f2ca8..e8c0dab4fd65 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/stat.h>
 #include <linux/sysctl.h>
 #include "../fs/xfs/xfs_sysctl.h"
@@ -986,8 +987,9 @@ static ssize_t bin_intvec(struct file *file,
 		size_t length = oldlen / sizeof(*vec);
 		char *str, *end;
 		int i;
+		loff_t pos = 0;
 
-		result = kernel_read(file, 0, buffer, BUFSZ - 1);
+		result = kernel_read(file, buffer, BUFSZ - 1, &pos);
 		if (result < 0)
 			goto out_kfree;
 
@@ -1016,6 +1018,7 @@ static ssize_t bin_intvec(struct file *file,
 		size_t length = newlen / sizeof(*vec);
 		char *str, *end;
 		int i;
+		loff_t pos = 0;
 
 		str = buffer;
 		end = str + BUFSZ;
@@ -1029,7 +1032,7 @@ static ssize_t bin_intvec(struct file *file,
 			str += scnprintf(str, end - str, "%lu\t", value);
 		}
 
-		result = kernel_write(file, buffer, str - buffer, 0);
+		result = kernel_write(file, buffer, str - buffer, &pos);
 		if (result < 0)
 			goto out_kfree;
 	}
@@ -1057,8 +1060,9 @@ static ssize_t bin_ulongvec(struct file *file,
 		size_t length = oldlen / sizeof(*vec);
 		char *str, *end;
 		int i;
+		loff_t pos = 0;
 
-		result = kernel_read(file, 0, buffer, BUFSZ - 1);
+		result = kernel_read(file, buffer, BUFSZ - 1, &pos);
 		if (result < 0)
 			goto out_kfree;
 
@@ -1087,6 +1091,7 @@ static ssize_t bin_ulongvec(struct file *file,
 		size_t length = newlen / sizeof(*vec);
 		char *str, *end;
 		int i;
+		loff_t pos = 0;
 
 		str = buffer;
 		end = str + BUFSZ;
@@ -1100,7 +1105,7 @@ static ssize_t bin_ulongvec(struct file *file,
 			str += scnprintf(str, end - str, "%lu\t", value);
 		}
 
-		result = kernel_write(file, buffer, str - buffer, 0);
+		result = kernel_write(file, buffer, str - buffer, &pos);
 		if (result < 0)
 			goto out_kfree;
 	}
@@ -1120,8 +1125,9 @@ static ssize_t bin_uuid(struct file *file,
 	if (oldval && oldlen) {
 		char buf[UUID_STRING_LEN + 1];
 		uuid_t uuid;
+		loff_t pos = 0;
 
-		result = kernel_read(file, 0, buf, sizeof(buf) - 1);
+		result = kernel_read(file, buf, sizeof(buf) - 1, &pos);
 		if (result < 0)
 			goto out;
 
@@ -1154,8 +1160,9 @@ static ssize_t bin_dn_node_address(struct file *file,
 		char buf[15], *nodep;
 		unsigned long area, node;
 		__le16 dnaddr;
+		loff_t pos = 0;
 
-		result = kernel_read(file, 0, buf, sizeof(buf) - 1);
+		result = kernel_read(file, buf, sizeof(buf) - 1, &pos);
 		if (result < 0)
 			goto out;
 
@@ -1188,6 +1195,7 @@ static ssize_t bin_dn_node_address(struct file *file,
 		__le16 dnaddr;
 		char buf[15];
 		int len;
+		loff_t pos = 0;
 
 		result = -EINVAL;
 		if (newlen != sizeof(dnaddr))
@@ -1201,7 +1209,7 @@ static ssize_t bin_dn_node_address(struct file *file,
 				le16_to_cpu(dnaddr) >> 10,
 				le16_to_cpu(dnaddr) & 0x3ff);
 
-		result = kernel_write(file, buf, len, 0);
+		result = kernel_write(file, buf, len, &pos);
 		if (result < 0)
 			goto out;
 	}
diff --git a/kernel/task_work.c b/kernel/task_work.c
index 836a72a66fba..0fef395662a6 100644
--- a/kernel/task_work.c
+++ b/kernel/task_work.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/spinlock.h>
 #include <linux/task_work.h>
 #include <linux/tracehook.h>
@@ -67,7 +68,7 @@ task_work_cancel(struct task_struct *task, task_work_func_t func)
 	 * we raced with task_work_run(), *pprev == NULL/exited.
 	 */
 	raw_spin_lock_irqsave(&task->pi_lock, flags);
-	while ((work = lockless_dereference(*pprev))) {
+	while ((work = READ_ONCE(*pprev))) {
 		if (work->func != func)
 			pprev = &work->next;
 		else if (cmpxchg(pprev, work, work->next) == work)
diff --git a/kernel/test_kprobes.c b/kernel/test_kprobes.c
index 0dbab6d1acb4..dd53e354f630 100644
--- a/kernel/test_kprobes.c
+++ b/kernel/test_kprobes.c
@@ -22,7 +22,7 @@
 
 #define div_factor 3
 
-static u32 rand1, preh_val, posth_val, jph_val;
+static u32 rand1, preh_val, posth_val;
 static int errors, handler_errors, num_tests;
 static u32 (*target)(u32 value);
 static u32 (*target2)(u32 value);
@@ -34,6 +34,10 @@ static noinline u32 kprobe_target(u32 value)
 
 static int kp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 {
+	if (preemptible()) {
+		handler_errors++;
+		pr_err("pre-handler is preemptible\n");
+	}
 	preh_val = (rand1 / div_factor);
 	return 0;
 }
@@ -41,6 +45,10 @@ static int kp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 static void kp_post_handler(struct kprobe *p, struct pt_regs *regs,
 		unsigned long flags)
 {
+	if (preemptible()) {
+		handler_errors++;
+		pr_err("post-handler is preemptible\n");
+	}
 	if (preh_val != (rand1 / div_factor)) {
 		handler_errors++;
 		pr_err("incorrect value in post_handler\n");
@@ -154,8 +162,15 @@ static int test_kprobes(void)
 
 }
 
+#if 0
+static u32 jph_val;
+
 static u32 j_kprobe_target(u32 value)
 {
+	if (preemptible()) {
+		handler_errors++;
+		pr_err("jprobe-handler is preemptible\n");
+	}
 	if (value != rand1) {
 		handler_errors++;
 		pr_err("incorrect value in jprobe handler\n");
@@ -227,11 +242,19 @@ static int test_jprobes(void)
 
 	return 0;
 }
+#else
+#define test_jprobe() (0)
+#define test_jprobes() (0)
+#endif
 #ifdef CONFIG_KRETPROBES
 static u32 krph_val;
 
 static int entry_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
 {
+	if (preemptible()) {
+		handler_errors++;
+		pr_err("kretprobe entry handler is preemptible\n");
+	}
 	krph_val = (rand1 / div_factor);
 	return 0;
 }
@@ -240,6 +263,10 @@ static int return_handler(struct kretprobe_instance *ri, struct pt_regs *regs)
 {
 	unsigned long ret = regs_return_value(regs);
 
+	if (preemptible()) {
+		handler_errors++;
+		pr_err("kretprobe return handler is preemptible\n");
+	}
 	if (ret != (rand1 / div_factor)) {
 		handler_errors++;
 		pr_err("incorrect value in kretprobe handler\n");
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index ac09bc29eb08..d689a9557e17 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -56,7 +56,7 @@ menu "Timers subsystem"
 
 # Core internal switch. Selected by NO_HZ_COMMON / HIGH_RES_TIMERS. This is
 # only related to the tick functionality. Oneshot clockevent devices
-# are supported independ of this.
+# are supported independent of this.
 config TICK_ONESHOT
 	bool
 
diff --git a/kernel/time/Makefile b/kernel/time/Makefile
index 938dbf33ef49..f1e46f338a9c 100644
--- a/kernel/time/Makefile
+++ b/kernel/time/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y += time.o timer.o hrtimer.o
 obj-y += timekeeping.o ntp.o clocksource.o jiffies.o timer_list.o
 obj-y += timeconv.o timecounter.o alarmtimer.o
diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 4237e0744e26..16c027e9cc73 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -280,17 +280,22 @@ static int clockevents_program_min_delta(struct clock_event_device *dev)
 static int clockevents_program_min_delta(struct clock_event_device *dev)
 {
 	unsigned long long clc;
-	int64_t delta;
+	int64_t delta = 0;
+	int i;
 
-	delta = dev->min_delta_ns;
-	dev->next_event = ktime_add_ns(ktime_get(), delta);
+	for (i = 0; i < 10; i++) {
+		delta += dev->min_delta_ns;
+		dev->next_event = ktime_add_ns(ktime_get(), delta);
 
-	if (clockevent_state_shutdown(dev))
-		return 0;
+		if (clockevent_state_shutdown(dev))
+			return 0;
 
-	dev->retries++;
-	clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
-	return dev->set_next_event((unsigned long) clc, dev);
+		dev->retries++;
+		clc = ((unsigned long long) delta * dev->mult) >> dev->shift;
+		if (dev->set_next_event((unsigned long) clc, dev) == 0)
+			return 0;
+	}
+	return -ETIME;
 }
 
 #endif /* CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST */
diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c
index 88f75f92ef36..d32520840fde 100644
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -758,9 +758,7 @@ void clock_was_set(void)
  */
 void hrtimers_resume(void)
 {
-	WARN_ONCE(!irqs_disabled(),
-		  KERN_INFO "hrtimers_resume() called with IRQs enabled!");
-
+	lockdep_assert_irqs_disabled();
 	/* Retrigger on the local CPU */
 	retrigger_next_event(NULL);
 	/* And schedule a retrigger for all others */
diff --git a/kernel/time/itimer.c b/kernel/time/itimer.c
index 2ef98a02376a..f26acef5d7b4 100644
--- a/kernel/time/itimer.c
+++ b/kernel/time/itimer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/itimer.c
  *
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index edf19cc53140..8d70da1b9a0d 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NTP state machine interfaces and logic.
  *
@@ -492,6 +493,67 @@ out:
 	return leap;
 }
 
+static void sync_hw_clock(struct work_struct *work);
+static DECLARE_DELAYED_WORK(sync_work, sync_hw_clock);
+
+static void sched_sync_hw_clock(struct timespec64 now,
+				unsigned long target_nsec, bool fail)
+
+{
+	struct timespec64 next;
+
+	getnstimeofday64(&next);
+	if (!fail)
+		next.tv_sec = 659;
+	else {
+		/*
+		 * Try again as soon as possible. Delaying long periods
+		 * decreases the accuracy of the work queue timer. Due to this
+		 * the algorithm is very likely to require a short-sleep retry
+		 * after the above long sleep to synchronize ts_nsec.
+		 */
+		next.tv_sec = 0;
+	}
+
+	/* Compute the needed delay that will get to tv_nsec == target_nsec */
+	next.tv_nsec = target_nsec - next.tv_nsec;
+	if (next.tv_nsec <= 0)
+		next.tv_nsec += NSEC_PER_SEC;
+	if (next.tv_nsec >= NSEC_PER_SEC) {
+		next.tv_sec++;
+		next.tv_nsec -= NSEC_PER_SEC;
+	}
+
+	queue_delayed_work(system_power_efficient_wq, &sync_work,
+			   timespec64_to_jiffies(&next));
+}
+
+static void sync_rtc_clock(void)
+{
+	unsigned long target_nsec;
+	struct timespec64 adjust, now;
+	int rc;
+
+	if (!IS_ENABLED(CONFIG_RTC_SYSTOHC))
+		return;
+
+	getnstimeofday64(&now);
+
+	adjust = now;
+	if (persistent_clock_is_local)
+		adjust.tv_sec -= (sys_tz.tz_minuteswest * 60);
+
+	/*
+	 * The current RTC in use will provide the target_nsec it wants to be
+	 * called at, and does rtc_tv_nsec_ok internally.
+	 */
+	rc = rtc_set_ntp_time(adjust, &target_nsec);
+	if (rc == -ENODEV)
+		return;
+
+	sched_sync_hw_clock(now, target_nsec, rc);
+}
+
 #ifdef CONFIG_GENERIC_CMOS_UPDATE
 int __weak update_persistent_clock(struct timespec now)
 {
@@ -507,76 +569,75 @@ int __weak update_persistent_clock64(struct timespec64 now64)
 }
 #endif
 
-#if defined(CONFIG_GENERIC_CMOS_UPDATE) || defined(CONFIG_RTC_SYSTOHC)
-static void sync_cmos_clock(struct work_struct *work);
-
-static DECLARE_DELAYED_WORK(sync_cmos_work, sync_cmos_clock);
-
-static void sync_cmos_clock(struct work_struct *work)
+static bool sync_cmos_clock(void)
 {
+	static bool no_cmos;
 	struct timespec64 now;
-	struct timespec64 next;
-	int fail = 1;
+	struct timespec64 adjust;
+	int rc = -EPROTO;
+	long target_nsec = NSEC_PER_SEC / 2;
+
+	if (!IS_ENABLED(CONFIG_GENERIC_CMOS_UPDATE))
+		return false;
+
+	if (no_cmos)
+		return false;
 
 	/*
-	 * If we have an externally synchronized Linux clock, then update
-	 * CMOS clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
-	 * called as close as possible to 500 ms before the new second starts.
-	 * This code is run on a timer.  If the clock is set, that timer
-	 * may not expire at the correct time.  Thus, we adjust...
-	 * We want the clock to be within a couple of ticks from the target.
+	 * Historically update_persistent_clock64() has followed x86
+	 * semantics, which match the MC146818A/etc RTC. This RTC will store
+	 * 'adjust' and then in .5s it will advance once second.
+	 *
+	 * Architectures are strongly encouraged to use rtclib and not
+	 * implement this legacy API.
 	 */
-	if (!ntp_synced()) {
-		/*
-		 * Not synced, exit, do not restart a timer (if one is
-		 * running, let it run out).
-		 */
-		return;
-	}
-
 	getnstimeofday64(&now);
-	if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec * 5) {
-		struct timespec64 adjust = now;
-
-		fail = -ENODEV;
+	if (rtc_tv_nsec_ok(-1 * target_nsec, &adjust, &now)) {
 		if (persistent_clock_is_local)
 			adjust.tv_sec -= (sys_tz.tz_minuteswest * 60);
-#ifdef CONFIG_GENERIC_CMOS_UPDATE
-		fail = update_persistent_clock64(adjust);
-#endif
-
-#ifdef CONFIG_RTC_SYSTOHC
-		if (fail == -ENODEV)
-			fail = rtc_set_ntp_time(adjust);
-#endif
+		rc = update_persistent_clock64(adjust);
+		/*
+		 * The machine does not support update_persistent_clock64 even
+		 * though it defines CONFIG_GENERIC_CMOS_UPDATE.
+		 */
+		if (rc == -ENODEV) {
+			no_cmos = true;
+			return false;
+		}
 	}
 
-	next.tv_nsec = (NSEC_PER_SEC / 2) - now.tv_nsec - (TICK_NSEC / 2);
-	if (next.tv_nsec <= 0)
-		next.tv_nsec += NSEC_PER_SEC;
+	sched_sync_hw_clock(now, target_nsec, rc);
+	return true;
+}
 
-	if (!fail || fail == -ENODEV)
-		next.tv_sec = 659;
-	else
-		next.tv_sec = 0;
+/*
+ * If we have an externally synchronized Linux clock, then update RTC clock
+ * accordingly every ~11 minutes. Generally RTCs can only store second
+ * precision, but many RTCs will adjust the phase of their second tick to
+ * match the moment of update. This infrastructure arranges to call to the RTC
+ * set at the correct moment to phase synchronize the RTC second tick over
+ * with the kernel clock.
+ */
+static void sync_hw_clock(struct work_struct *work)
+{
+	if (!ntp_synced())
+		return;
 
-	if (next.tv_nsec >= NSEC_PER_SEC) {
-		next.tv_sec++;
-		next.tv_nsec -= NSEC_PER_SEC;
-	}
-	queue_delayed_work(system_power_efficient_wq,
-			   &sync_cmos_work, timespec64_to_jiffies(&next));
+	if (sync_cmos_clock())
+		return;
+
+	sync_rtc_clock();
 }
 
 void ntp_notify_cmos_timer(void)
 {
-	queue_delayed_work(system_power_efficient_wq, &sync_cmos_work, 0);
-}
-
-#else
-void ntp_notify_cmos_timer(void) { }
-#endif
+	if (!ntp_synced())
+		return;
 
+	if (IS_ENABLED(CONFIG_GENERIC_CMOS_UPDATE) ||
+	    IS_ENABLED(CONFIG_RTC_SYSTOHC))
+		queue_delayed_work(system_power_efficient_wq, &sync_work, 0);
+}
 
 /*
  * Propagate a new txc->status value into the NTP state:
@@ -653,67 +714,6 @@ static inline void process_adjtimex_modes(struct timex *txc,
 }
 
 
-
-/**
- * ntp_validate_timex - Ensures the timex is ok for use in do_adjtimex
- */
-int ntp_validate_timex(struct timex *txc)
-{
-	if (txc->modes & ADJ_ADJTIME) {
-		/* singleshot must not be used with any other mode bits */
-		if (!(txc->modes & ADJ_OFFSET_SINGLESHOT))
-			return -EINVAL;
-		if (!(txc->modes & ADJ_OFFSET_READONLY) &&
-		    !capable(CAP_SYS_TIME))
-			return -EPERM;
-	} else {
-		/* In order to modify anything, you gotta be super-user! */
-		 if (txc->modes && !capable(CAP_SYS_TIME))
-			return -EPERM;
-		/*
-		 * if the quartz is off by more than 10% then
-		 * something is VERY wrong!
-		 */
-		if (txc->modes & ADJ_TICK &&
-		    (txc->tick <  900000/USER_HZ ||
-		     txc->tick > 1100000/USER_HZ))
-			return -EINVAL;
-	}
-
-	if (txc->modes & ADJ_SETOFFSET) {
-		/* In order to inject time, you gotta be super-user! */
-		if (!capable(CAP_SYS_TIME))
-			return -EPERM;
-
-		if (txc->modes & ADJ_NANO) {
-			struct timespec ts;
-
-			ts.tv_sec = txc->time.tv_sec;
-			ts.tv_nsec = txc->time.tv_usec;
-			if (!timespec_inject_offset_valid(&ts))
-				return -EINVAL;
-
-		} else {
-			if (!timeval_inject_offset_valid(&txc->time))
-				return -EINVAL;
-		}
-	}
-
-	/*
-	 * Check for potential multiplication overflows that can
-	 * only happen on 64-bit systems:
-	 */
-	if ((txc->modes & ADJ_FREQUENCY) && (BITS_PER_LONG == 64)) {
-		if (LLONG_MIN / PPM_SCALE > txc->freq)
-			return -EINVAL;
-		if (LLONG_MAX / PPM_SCALE < txc->freq)
-			return -EINVAL;
-	}
-
-	return 0;
-}
-
-
 /*
  * adjtimex mainly allows reading (and writing, if superuser) of
  * kernel time-keeping variables. used by xntpd.
diff --git a/kernel/time/ntp_internal.h b/kernel/time/ntp_internal.h
index d8a7c11fa71a..909bd1f1bfb1 100644
--- a/kernel/time/ntp_internal.h
+++ b/kernel/time/ntp_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_NTP_INTERNAL_H
 #define _LINUX_NTP_INTERNAL_H
 
@@ -7,7 +8,6 @@ extern void ntp_clear(void);
 extern u64 ntp_tick_length(void);
 extern ktime_t ntp_get_next_leap(void);
 extern int second_overflow(time64_t secs);
-extern int ntp_validate_timex(struct timex *);
 extern int __do_adjtimex(struct timex *, struct timespec64 *, s32 *);
 extern void __hardpps(const struct timespec64 *, const struct timespec64 *);
 #endif /* _LINUX_NTP_INTERNAL_H */
diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c
index 8585ad6e472a..1f27887aa194 100644
--- a/kernel/time/posix-cpu-timers.c
+++ b/kernel/time/posix-cpu-timers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement CPU time clocks for the POSIX clock interface.
  */
@@ -602,7 +603,7 @@ static int posix_cpu_timer_set(struct k_itimer *timer, int timer_flags,
 	/*
 	 * Disarm any old timer after extracting its expiry time.
 	 */
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	ret = 0;
 	old_incr = timer->it.cpu.incr;
@@ -1033,7 +1034,7 @@ static void posix_cpu_timer_rearm(struct k_itimer *timer)
 	/*
 	 * Now re-arm for the new expiry time.
 	 */
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 	arm_timer(timer);
 unlock:
 	unlock_task_sighand(p, &flags);
@@ -1124,7 +1125,7 @@ void run_posix_cpu_timers(struct task_struct *tsk)
 	struct k_itimer *timer, *next;
 	unsigned long flags;
 
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	/*
 	 * The fast path checks that there are no expired thread or thread
diff --git a/kernel/time/posix-stubs.c b/kernel/time/posix-stubs.c
index 06f34feb635e..b258bee13b02 100644
--- a/kernel/time/posix-stubs.c
+++ b/kernel/time/posix-stubs.c
@@ -117,8 +117,7 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags,
 		const struct timespec __user *, rqtp,
 		struct timespec __user *, rmtp)
 {
-	struct timespec64 t64;
-	struct timespec t;
+	struct timespec64 t;
 
 	switch (which_clock) {
 	case CLOCK_REALTIME:
@@ -129,16 +128,15 @@ SYSCALL_DEFINE4(clock_nanosleep, const clockid_t, which_clock, int, flags,
 		return -EINVAL;
 	}
 
-	if (copy_from_user(&t, rqtp, sizeof (struct timespec)))
+	if (get_timespec64(&t, rqtp))
 		return -EFAULT;
-	t64 = timespec_to_timespec64(t);
-	if (!timespec64_valid(&t64))
+	if (!timespec64_valid(&t))
 		return -EINVAL;
 	if (flags & TIMER_ABSTIME)
 		rmtp = NULL;
 	current->restart_block.nanosleep.type = rmtp ? TT_NATIVE : TT_NONE;
 	current->restart_block.nanosleep.rmtp = rmtp;
-	return hrtimer_nanosleep(&t64, flags & TIMER_ABSTIME ?
+	return hrtimer_nanosleep(&t, flags & TIMER_ABSTIME ?
 				 HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
 				 which_clock);
 }
@@ -203,8 +201,7 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
 		       struct compat_timespec __user *, rqtp,
 		       struct compat_timespec __user *, rmtp)
 {
-	struct timespec64 t64;
-	struct timespec t;
+	struct timespec64 t;
 
 	switch (which_clock) {
 	case CLOCK_REALTIME:
@@ -215,16 +212,15 @@ COMPAT_SYSCALL_DEFINE4(clock_nanosleep, clockid_t, which_clock, int, flags,
 		return -EINVAL;
 	}
 
-	if (compat_get_timespec(&t, rqtp))
+	if (compat_get_timespec64(&t, rqtp))
 		return -EFAULT;
-	t64 = timespec_to_timespec64(t);
-	if (!timespec64_valid(&t64))
+	if (!timespec64_valid(&t))
 		return -EINVAL;
 	if (flags & TIMER_ABSTIME)
 		rmtp = NULL;
 	current->restart_block.nanosleep.type = rmtp ? TT_COMPAT : TT_NONE;
 	current->restart_block.nanosleep.compat_rmtp = rmtp;
-	return hrtimer_nanosleep(&t64, flags & TIMER_ABSTIME ?
+	return hrtimer_nanosleep(&t, flags & TIMER_ABSTIME ?
 				 HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
 				 which_clock);
 }
diff --git a/kernel/time/posix-timers.h b/kernel/time/posix-timers.h
index fb303c3be4d3..151e28f5bf30 100644
--- a/kernel/time/posix-timers.h
+++ b/kernel/time/posix-timers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define TIMER_RETRY 1
 
 struct k_clock {
diff --git a/kernel/time/tick-broadcast-hrtimer.c b/kernel/time/tick-broadcast-hrtimer.c
index a7bb8f33ae07..58045eb976c3 100644
--- a/kernel/time/tick-broadcast-hrtimer.c
+++ b/kernel/time/tick-broadcast-hrtimer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/kernel/time/tick-broadcast-hrtimer.c
  * This file emulates a local clock event device
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h
index be0ac01f2e12..f8e1845aa464 100644
--- a/kernel/time/tick-internal.h
+++ b/kernel/time/tick-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * tick internal variable and functions used by low/high res code
  */
diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c
index 6b009c207671..c1f518e7aa80 100644
--- a/kernel/time/tick-oneshot.c
+++ b/kernel/time/tick-oneshot.c
@@ -33,6 +33,7 @@ int tick_program_event(ktime_t expires, int force)
 		 * We don't need the clock event device any more, stop it.
 		 */
 		clockevents_switch_state(dev, CLOCK_EVT_STATE_ONESHOT_STOPPED);
+		dev->next_event = KTIME_MAX;
 		return 0;
 	}
 
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index c7a899c5ce64..99578f06c8d4 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -27,6 +27,7 @@
 #include <linux/irq_work.h>
 #include <linux/posix-timers.h>
 #include <linux/context_tracking.h>
+#include <linux/mm.h>
 
 #include <asm/irq_regs.h>
 
@@ -165,7 +166,6 @@ static void tick_sched_handle(struct tick_sched *ts, struct pt_regs *regs)
 
 #ifdef CONFIG_NO_HZ_FULL
 cpumask_var_t tick_nohz_full_mask;
-cpumask_var_t housekeeping_mask;
 bool tick_nohz_full_running;
 static atomic_t tick_dep_mask;
 
@@ -198,7 +198,7 @@ static bool check_tick_dependency(atomic_t *dep)
 
 static bool can_stop_full_tick(int cpu, struct tick_sched *ts)
 {
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	if (unlikely(!cpu_online(cpu)))
 		return false;
@@ -385,20 +385,13 @@ out:
 	local_irq_restore(flags);
 }
 
-/* Parse the boot-time nohz CPU list from the kernel parameters. */
-static int __init tick_nohz_full_setup(char *str)
+/* Get the boot-time nohz CPU list from the kernel parameters. */
+void __init tick_nohz_full_setup(cpumask_var_t cpumask)
 {
 	alloc_bootmem_cpumask_var(&tick_nohz_full_mask);
-	if (cpulist_parse(str, tick_nohz_full_mask) < 0) {
-		pr_warn("NO_HZ: Incorrect nohz_full cpumask\n");
-		free_bootmem_cpumask_var(tick_nohz_full_mask);
-		return 1;
-	}
+	cpumask_copy(tick_nohz_full_mask, cpumask);
 	tick_nohz_full_running = true;
-
-	return 1;
 }
-__setup("nohz_full=", tick_nohz_full_setup);
 
 static int tick_nohz_cpu_down(unsigned int cpu)
 {
@@ -437,13 +430,6 @@ void __init tick_nohz_init(void)
 			return;
 	}
 
-	if (!alloc_cpumask_var(&housekeeping_mask, GFP_KERNEL)) {
-		WARN(1, "NO_HZ: Can't allocate not-full dynticks cpumask\n");
-		cpumask_clear(tick_nohz_full_mask);
-		tick_nohz_full_running = false;
-		return;
-	}
-
 	/*
 	 * Full dynticks uses irq work to drive the tick rescheduling on safe
 	 * locking contexts. But then we need irq work to raise its own
@@ -452,7 +438,6 @@ void __init tick_nohz_init(void)
 	if (!arch_irq_work_has_interrupt()) {
 		pr_warn("NO_HZ: Can't run full dynticks because arch doesn't support irq work self-IPIs\n");
 		cpumask_clear(tick_nohz_full_mask);
-		cpumask_copy(housekeeping_mask, cpu_possible_mask);
 		tick_nohz_full_running = false;
 		return;
 	}
@@ -465,9 +450,6 @@ void __init tick_nohz_init(void)
 		cpumask_clear_cpu(cpu, tick_nohz_full_mask);
 	}
 
-	cpumask_andnot(housekeeping_mask,
-		       cpu_possible_mask, tick_nohz_full_mask);
-
 	for_each_cpu(cpu, tick_nohz_full_mask)
 		context_tracking_cpu_set(cpu);
 
@@ -477,12 +459,6 @@ void __init tick_nohz_init(void)
 	WARN_ON(ret < 0);
 	pr_info("NO_HZ: Full dynticks CPUs: %*pbl.\n",
 		cpumask_pr_args(tick_nohz_full_mask));
-
-	/*
-	 * We need at least one CPU to handle housekeeping work such
-	 * as timekeeping, unbound timers, workqueues, ...
-	 */
-	WARN_ON_ONCE(cpumask_empty(housekeeping_mask));
 }
 #endif
 
@@ -787,6 +763,7 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
 	if (!ts->tick_stopped) {
 		calc_load_nohz_start();
 		cpu_load_update_nohz_start();
+		quiet_vmstat();
 
 		ts->last_tick = hrtimer_get_expires(&ts->sched_timer);
 		ts->tick_stopped = 1;
@@ -960,8 +937,7 @@ void tick_nohz_idle_enter(void)
 {
 	struct tick_sched *ts;
 
-	WARN_ON_ONCE(irqs_disabled());
-
+	lockdep_assert_irqs_enabled();
 	/*
 	 * Update the idle state in the scheduler domain hierarchy
 	 * when tick_nohz_stop_sched_tick() is called from the idle loop.
diff --git a/kernel/time/tick-sched.h b/kernel/time/tick-sched.h
index 075444e3d48e..954b43dbf21c 100644
--- a/kernel/time/tick-sched.h
+++ b/kernel/time/tick-sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TICK_SCHED_H
 #define _TICK_SCHED_H
 
diff --git a/kernel/time/time.c b/kernel/time/time.c
index 44a8c1402133..bd4e6c7dd689 100644
--- a/kernel/time/time.c
+++ b/kernel/time/time.c
@@ -82,7 +82,7 @@ SYSCALL_DEFINE1(time, time_t __user *, tloc)
 
 SYSCALL_DEFINE1(stime, time_t __user *, tptr)
 {
-	struct timespec tv;
+	struct timespec64 tv;
 	int err;
 
 	if (get_user(tv.tv_sec, tptr))
@@ -90,11 +90,11 @@ SYSCALL_DEFINE1(stime, time_t __user *, tptr)
 
 	tv.tv_nsec = 0;
 
-	err = security_settime(&tv, NULL);
+	err = security_settime64(&tv, NULL);
 	if (err)
 		return err;
 
-	do_settimeofday(&tv);
+	do_settimeofday64(&tv);
 	return 0;
 }
 
@@ -122,7 +122,7 @@ COMPAT_SYSCALL_DEFINE1(time, compat_time_t __user *, tloc)
 
 COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
 {
-	struct timespec tv;
+	struct timespec64 tv;
 	int err;
 
 	if (get_user(tv.tv_sec, tptr))
@@ -130,11 +130,11 @@ COMPAT_SYSCALL_DEFINE1(stime, compat_time_t __user *, tptr)
 
 	tv.tv_nsec = 0;
 
-	err = security_settime(&tv, NULL);
+	err = security_settime64(&tv, NULL);
 	if (err)
 		return err;
 
-	do_settimeofday(&tv);
+	do_settimeofday64(&tv);
 	return 0;
 }
 
@@ -158,40 +158,6 @@ SYSCALL_DEFINE2(gettimeofday, struct timeval __user *, tv,
 }
 
 /*
- * Indicates if there is an offset between the system clock and the hardware
- * clock/persistent clock/rtc.
- */
-int persistent_clock_is_local;
-
-/*
- * Adjust the time obtained from the CMOS to be UTC time instead of
- * local time.
- *
- * This is ugly, but preferable to the alternatives.  Otherwise we
- * would either need to write a program to do it in /etc/rc (and risk
- * confusion if the program gets run more than once; it would also be
- * hard to make the program warp the clock precisely n hours)  or
- * compile in the timezone information into the kernel.  Bad, bad....
- *
- *						- TYT, 1992-01-01
- *
- * The best thing to do is to keep the CMOS clock in universal time (UTC)
- * as real UNIX machines always do it. This avoids all headaches about
- * daylight saving times and warping kernel clocks.
- */
-static inline void warp_clock(void)
-{
-	if (sys_tz.tz_minuteswest != 0) {
-		struct timespec adjust;
-
-		persistent_clock_is_local = 1;
-		adjust.tv_sec = sys_tz.tz_minuteswest * 60;
-		adjust.tv_nsec = 0;
-		timekeeping_inject_offset(&adjust);
-	}
-}
-
-/*
  * In case for some reason the CMOS clock has not already been running
  * in UTC, but in some local time: The first time we set the timezone,
  * we will warp the clock so that it is ticking UTC time instead of
@@ -224,7 +190,7 @@ int do_sys_settimeofday64(const struct timespec64 *tv, const struct timezone *tz
 		if (firsttime) {
 			firsttime = 0;
 			if (!tv)
-				warp_clock();
+				timekeeping_warp_clock();
 		}
 	}
 	if (tv)
@@ -441,6 +407,7 @@ time64_t mktime64(const unsigned int year0, const unsigned int mon0,
 }
 EXPORT_SYMBOL(mktime64);
 
+#if __BITS_PER_LONG == 32
 /**
  * set_normalized_timespec - set timespec sec and nsec parts and normalize
  *
@@ -501,6 +468,7 @@ struct timespec ns_to_timespec(const s64 nsec)
 	return ts;
 }
 EXPORT_SYMBOL(ns_to_timespec);
+#endif
 
 /**
  * ns_to_timeval - Convert nanoseconds to timeval
@@ -520,7 +488,6 @@ struct timeval ns_to_timeval(const s64 nsec)
 }
 EXPORT_SYMBOL(ns_to_timeval);
 
-#if BITS_PER_LONG == 32
 /**
  * set_normalized_timespec - set timespec sec and nsec parts and normalize
  *
@@ -581,7 +548,7 @@ struct timespec64 ns_to_timespec64(const s64 nsec)
 	return ts;
 }
 EXPORT_SYMBOL(ns_to_timespec64);
-#endif
+
 /**
  * msecs_to_jiffies: - convert milliseconds to jiffies
  * @m:	time in milliseconds
@@ -853,24 +820,6 @@ unsigned long nsecs_to_jiffies(u64 n)
 EXPORT_SYMBOL_GPL(nsecs_to_jiffies);
 
 /*
- * Add two timespec values and do a safety check for overflow.
- * It's assumed that both values are valid (>= 0)
- */
-struct timespec timespec_add_safe(const struct timespec lhs,
-				  const struct timespec rhs)
-{
-	struct timespec res;
-
-	set_normalized_timespec(&res, lhs.tv_sec + rhs.tv_sec,
-				lhs.tv_nsec + rhs.tv_nsec);
-
-	if (res.tv_sec < lhs.tv_sec || res.tv_sec < rhs.tv_sec)
-		res.tv_sec = TIME_T_MAX;
-
-	return res;
-}
-
-/*
  * Add two timespec64 values and do a safety check for overflow.
  * It's assumed that both values are valid (>= 0).
  * And, each timespec64 is in normalized form.
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 2cafb49aa65e..198afa78bf69 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -60,8 +60,27 @@ struct tk_fast {
 	struct tk_read_base	base[2];
 };
 
-static struct tk_fast tk_fast_mono ____cacheline_aligned;
-static struct tk_fast tk_fast_raw  ____cacheline_aligned;
+/* Suspend-time cycles value for halted fast timekeeper. */
+static u64 cycles_at_suspend;
+
+static u64 dummy_clock_read(struct clocksource *cs)
+{
+	return cycles_at_suspend;
+}
+
+static struct clocksource dummy_clock = {
+	.read = dummy_clock_read,
+};
+
+static struct tk_fast tk_fast_mono ____cacheline_aligned = {
+	.base[0] = { .clock = &dummy_clock, },
+	.base[1] = { .clock = &dummy_clock, },
+};
+
+static struct tk_fast tk_fast_raw  ____cacheline_aligned = {
+	.base[0] = { .clock = &dummy_clock, },
+	.base[1] = { .clock = &dummy_clock, },
+};
 
 /* flag for if timekeeping is suspended */
 int __read_mostly timekeeping_suspended;
@@ -477,17 +496,39 @@ u64 notrace ktime_get_boot_fast_ns(void)
 }
 EXPORT_SYMBOL_GPL(ktime_get_boot_fast_ns);
 
-/* Suspend-time cycles value for halted fast timekeeper. */
-static u64 cycles_at_suspend;
 
-static u64 dummy_clock_read(struct clocksource *cs)
+/*
+ * See comment for __ktime_get_fast_ns() vs. timestamp ordering
+ */
+static __always_inline u64 __ktime_get_real_fast_ns(struct tk_fast *tkf)
 {
-	return cycles_at_suspend;
+	struct tk_read_base *tkr;
+	unsigned int seq;
+	u64 now;
+
+	do {
+		seq = raw_read_seqcount_latch(&tkf->seq);
+		tkr = tkf->base + (seq & 0x01);
+		now = ktime_to_ns(tkr->base_real);
+
+		now += timekeeping_delta_to_ns(tkr,
+				clocksource_delta(
+					tk_clock_read(tkr),
+					tkr->cycle_last,
+					tkr->mask));
+	} while (read_seqcount_retry(&tkf->seq, seq));
+
+	return now;
 }
 
-static struct clocksource dummy_clock = {
-	.read = dummy_clock_read,
-};
+/**
+ * ktime_get_real_fast_ns: - NMI safe and fast access to clock realtime.
+ */
+u64 ktime_get_real_fast_ns(void)
+{
+	return __ktime_get_real_fast_ns(&tk_fast_mono);
+}
+EXPORT_SYMBOL_GPL(ktime_get_real_fast_ns);
 
 /**
  * halt_fast_timekeeper - Prevent fast timekeeper from accessing clocksource.
@@ -507,6 +548,7 @@ static void halt_fast_timekeeper(struct timekeeper *tk)
 	memcpy(&tkr_dummy, tkr, sizeof(tkr_dummy));
 	cycles_at_suspend = tk_clock_read(tkr);
 	tkr_dummy.clock = &dummy_clock;
+	tkr_dummy.base_real = tkr->base + tk->offs_real;
 	update_fast_timekeeper(&tkr_dummy, &tk_fast_mono);
 
 	tkr = &tk->tkr_raw;
@@ -654,6 +696,7 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action)
 	update_vsyscall(tk);
 	update_pvclock_gtod(tk, action & TK_CLOCK_WAS_SET);
 
+	tk->tkr_mono.base_real = tk->tkr_mono.base + tk->offs_real;
 	update_fast_timekeeper(&tk->tkr_mono, &tk_fast_mono);
 	update_fast_timekeeper(&tk->tkr_raw,  &tk_fast_raw);
 
@@ -1264,33 +1307,31 @@ EXPORT_SYMBOL(do_settimeofday64);
  *
  * Adds or subtracts an offset value from the current time.
  */
-int timekeeping_inject_offset(struct timespec *ts)
+static int timekeeping_inject_offset(struct timespec64 *ts)
 {
 	struct timekeeper *tk = &tk_core.timekeeper;
 	unsigned long flags;
-	struct timespec64 ts64, tmp;
+	struct timespec64 tmp;
 	int ret = 0;
 
-	if (!timespec_inject_offset_valid(ts))
+	if (ts->tv_nsec < 0 || ts->tv_nsec >= NSEC_PER_SEC)
 		return -EINVAL;
 
-	ts64 = timespec_to_timespec64(*ts);
-
 	raw_spin_lock_irqsave(&timekeeper_lock, flags);
 	write_seqcount_begin(&tk_core.seq);
 
 	timekeeping_forward_now(tk);
 
 	/* Make sure the proposed value is valid */
-	tmp = timespec64_add(tk_xtime(tk),  ts64);
-	if (timespec64_compare(&tk->wall_to_monotonic, &ts64) > 0 ||
+	tmp = timespec64_add(tk_xtime(tk), *ts);
+	if (timespec64_compare(&tk->wall_to_monotonic, ts) > 0 ||
 	    !timespec64_valid_strict(&tmp)) {
 		ret = -EINVAL;
 		goto error;
 	}
 
-	tk_xtime_add(tk, &ts64);
-	tk_set_wall_to_mono(tk, timespec64_sub(tk->wall_to_monotonic, ts64));
+	tk_xtime_add(tk, ts);
+	tk_set_wall_to_mono(tk, timespec64_sub(tk->wall_to_monotonic, *ts));
 
 error: /* even if we error out, we forwarded the time, so call update */
 	timekeeping_update(tk, TK_CLEAR_NTP | TK_MIRROR | TK_CLOCK_WAS_SET);
@@ -1303,7 +1344,40 @@ error: /* even if we error out, we forwarded the time, so call update */
 
 	return ret;
 }
-EXPORT_SYMBOL(timekeeping_inject_offset);
+
+/*
+ * Indicates if there is an offset between the system clock and the hardware
+ * clock/persistent clock/rtc.
+ */
+int persistent_clock_is_local;
+
+/*
+ * Adjust the time obtained from the CMOS to be UTC time instead of
+ * local time.
+ *
+ * This is ugly, but preferable to the alternatives.  Otherwise we
+ * would either need to write a program to do it in /etc/rc (and risk
+ * confusion if the program gets run more than once; it would also be
+ * hard to make the program warp the clock precisely n hours)  or
+ * compile in the timezone information into the kernel.  Bad, bad....
+ *
+ *						- TYT, 1992-01-01
+ *
+ * The best thing to do is to keep the CMOS clock in universal time (UTC)
+ * as real UNIX machines always do it. This avoids all headaches about
+ * daylight saving times and warping kernel clocks.
+ */
+void timekeeping_warp_clock(void)
+{
+	if (sys_tz.tz_minuteswest != 0) {
+		struct timespec64 adjust;
+
+		persistent_clock_is_local = 1;
+		adjust.tv_sec = sys_tz.tz_minuteswest * 60;
+		adjust.tv_nsec = 0;
+		timekeeping_inject_offset(&adjust);
+	}
+}
 
 /**
  * __timekeeping_set_tai_offset - Sets the TAI offset from UTC and monotonic
@@ -2248,6 +2322,72 @@ ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq, ktime_t *offs_real,
 }
 
 /**
+ * timekeeping_validate_timex - Ensures the timex is ok for use in do_adjtimex
+ */
+static int timekeeping_validate_timex(struct timex *txc)
+{
+	if (txc->modes & ADJ_ADJTIME) {
+		/* singleshot must not be used with any other mode bits */
+		if (!(txc->modes & ADJ_OFFSET_SINGLESHOT))
+			return -EINVAL;
+		if (!(txc->modes & ADJ_OFFSET_READONLY) &&
+		    !capable(CAP_SYS_TIME))
+			return -EPERM;
+	} else {
+		/* In order to modify anything, you gotta be super-user! */
+		if (txc->modes && !capable(CAP_SYS_TIME))
+			return -EPERM;
+		/*
+		 * if the quartz is off by more than 10% then
+		 * something is VERY wrong!
+		 */
+		if (txc->modes & ADJ_TICK &&
+		    (txc->tick <  900000/USER_HZ ||
+		     txc->tick > 1100000/USER_HZ))
+			return -EINVAL;
+	}
+
+	if (txc->modes & ADJ_SETOFFSET) {
+		/* In order to inject time, you gotta be super-user! */
+		if (!capable(CAP_SYS_TIME))
+			return -EPERM;
+
+		/*
+		 * Validate if a timespec/timeval used to inject a time
+		 * offset is valid.  Offsets can be postive or negative, so
+		 * we don't check tv_sec. The value of the timeval/timespec
+		 * is the sum of its fields,but *NOTE*:
+		 * The field tv_usec/tv_nsec must always be non-negative and
+		 * we can't have more nanoseconds/microseconds than a second.
+		 */
+		if (txc->time.tv_usec < 0)
+			return -EINVAL;
+
+		if (txc->modes & ADJ_NANO) {
+			if (txc->time.tv_usec >= NSEC_PER_SEC)
+				return -EINVAL;
+		} else {
+			if (txc->time.tv_usec >= USEC_PER_SEC)
+				return -EINVAL;
+		}
+	}
+
+	/*
+	 * Check for potential multiplication overflows that can
+	 * only happen on 64-bit systems:
+	 */
+	if ((txc->modes & ADJ_FREQUENCY) && (BITS_PER_LONG == 64)) {
+		if (LLONG_MIN / PPM_SCALE > txc->freq)
+			return -EINVAL;
+		if (LLONG_MAX / PPM_SCALE < txc->freq)
+			return -EINVAL;
+	}
+
+	return 0;
+}
+
+
+/**
  * do_adjtimex() - Accessor function to NTP __do_adjtimex function
  */
 int do_adjtimex(struct timex *txc)
@@ -2259,12 +2399,12 @@ int do_adjtimex(struct timex *txc)
 	int ret;
 
 	/* Validate the data before disabling interrupts */
-	ret = ntp_validate_timex(txc);
+	ret = timekeeping_validate_timex(txc);
 	if (ret)
 		return ret;
 
 	if (txc->modes & ADJ_SETOFFSET) {
-		struct timespec delta;
+		struct timespec64 delta;
 		delta.tv_sec  = txc->time.tv_sec;
 		delta.tv_nsec = txc->time.tv_usec;
 		if (!(txc->modes & ADJ_NANO))
diff --git a/kernel/time/timekeeping.h b/kernel/time/timekeeping.h
index d0914676d4c5..7a9b4eb7a1d5 100644
--- a/kernel/time/timekeeping.h
+++ b/kernel/time/timekeeping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KERNEL_TIME_TIMEKEEPING_H
 #define _KERNEL_TIME_TIMEKEEPING_H
 /*
@@ -10,7 +11,7 @@ extern ktime_t ktime_get_update_offsets_now(unsigned int *cwsseq,
 
 extern int timekeeping_valid_for_hres(void);
 extern u64 timekeeping_max_deferment(void);
-extern int timekeeping_inject_offset(struct timespec *ts);
+extern void timekeeping_warp_clock(void);
 extern int timekeeping_suspend(void);
 extern void timekeeping_resume(void);
 
diff --git a/kernel/time/timekeeping_internal.h b/kernel/time/timekeeping_internal.h
index 9a18f121f399..fdbeeb02dde9 100644
--- a/kernel/time/timekeeping_internal.h
+++ b/kernel/time/timekeeping_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TIMEKEEPING_INTERNAL_H
 #define _TIMEKEEPING_INTERNAL_H
 /*
diff --git a/kernel/time/timer.c b/kernel/time/timer.c
index f2674a056c26..af0b8bae4502 100644
--- a/kernel/time/timer.c
+++ b/kernel/time/timer.c
@@ -610,7 +610,7 @@ static bool timer_fixup_init(void *addr, enum debug_obj_state state)
 }
 
 /* Stub timer callback for improperly used timers. */
-static void stub_timer(unsigned long data)
+static void stub_timer(struct timer_list *unused)
 {
 	WARN_ON(1);
 }
@@ -626,7 +626,7 @@ static bool timer_fixup_activate(void *addr, enum debug_obj_state state)
 
 	switch (state) {
 	case ODEBUG_STATE_NOTAVAILABLE:
-		setup_timer(timer, stub_timer, 0);
+		timer_setup(timer, stub_timer, 0);
 		return true;
 
 	case ODEBUG_STATE_ACTIVE:
@@ -665,7 +665,7 @@ static bool timer_fixup_assert_init(void *addr, enum debug_obj_state state)
 
 	switch (state) {
 	case ODEBUG_STATE_NOTAVAILABLE:
-		setup_timer(timer, stub_timer, 0);
+		timer_setup(timer, stub_timer, 0);
 		return true;
 	default:
 		return false;
@@ -929,8 +929,11 @@ static struct timer_base *lock_timer_base(struct timer_list *timer,
 	}
 }
 
+#define MOD_TIMER_PENDING_ONLY		0x01
+#define MOD_TIMER_REDUCE		0x02
+
 static inline int
-__mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only)
+__mod_timer(struct timer_list *timer, unsigned long expires, unsigned int options)
 {
 	struct timer_base *base, *new_base;
 	unsigned int idx = UINT_MAX;
@@ -950,7 +953,11 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only)
 		 * larger granularity than you would get from adding a new
 		 * timer with this expiry.
 		 */
-		if (timer->expires == expires)
+		long diff = timer->expires - expires;
+
+		if (!diff)
+			return 1;
+		if (options & MOD_TIMER_REDUCE && diff <= 0)
 			return 1;
 
 		/*
@@ -962,6 +969,12 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only)
 		base = lock_timer_base(timer, &flags);
 		forward_timer_base(base);
 
+		if (timer_pending(timer) && (options & MOD_TIMER_REDUCE) &&
+		    time_before_eq(timer->expires, expires)) {
+			ret = 1;
+			goto out_unlock;
+		}
+
 		clk = base->clk;
 		idx = calc_wheel_index(expires, clk);
 
@@ -971,7 +984,10 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only)
 		 * subsequent call will exit in the expires check above.
 		 */
 		if (idx == timer_get_idx(timer)) {
-			timer->expires = expires;
+			if (!(options & MOD_TIMER_REDUCE))
+				timer->expires = expires;
+			else if (time_after(timer->expires, expires))
+				timer->expires = expires;
 			ret = 1;
 			goto out_unlock;
 		}
@@ -981,7 +997,7 @@ __mod_timer(struct timer_list *timer, unsigned long expires, bool pending_only)
 	}
 
 	ret = detach_if_pending(timer, base, false);
-	if (!ret && pending_only)
+	if (!ret && (options & MOD_TIMER_PENDING_ONLY))
 		goto out_unlock;
 
 	debug_activate(timer, expires);
@@ -1042,7 +1058,7 @@ out_unlock:
  */
 int mod_timer_pending(struct timer_list *timer, unsigned long expires)
 {
-	return __mod_timer(timer, expires, true);
+	return __mod_timer(timer, expires, MOD_TIMER_PENDING_ONLY);
 }
 EXPORT_SYMBOL(mod_timer_pending);
 
@@ -1068,11 +1084,26 @@ EXPORT_SYMBOL(mod_timer_pending);
  */
 int mod_timer(struct timer_list *timer, unsigned long expires)
 {
-	return __mod_timer(timer, expires, false);
+	return __mod_timer(timer, expires, 0);
 }
 EXPORT_SYMBOL(mod_timer);
 
 /**
+ * timer_reduce - Modify a timer's timeout if it would reduce the timeout
+ * @timer:	The timer to be modified
+ * @expires:	New timeout in jiffies
+ *
+ * timer_reduce() is very similar to mod_timer(), except that it will only
+ * modify a running timer if that would reduce the expiration time (it will
+ * start a timer that isn't running).
+ */
+int timer_reduce(struct timer_list *timer, unsigned long expires)
+{
+	return __mod_timer(timer, expires, MOD_TIMER_REDUCE);
+}
+EXPORT_SYMBOL(timer_reduce);
+
+/**
  * add_timer - start a timer
  * @timer: the timer to be added
  *
@@ -1560,8 +1591,11 @@ static int collect_expired_timers(struct timer_base *base,
 		 * jiffies, otherwise forward to the next expiry time:
 		 */
 		if (time_after(next, jiffies)) {
-			/* The call site will increment clock! */
-			base->clk = jiffies - 1;
+			/*
+			 * The call site will increment base->clk and then
+			 * terminate the expiry loop immediately.
+			 */
+			base->clk = jiffies;
 			return 0;
 		}
 		base->clk = next;
@@ -1668,9 +1702,20 @@ void run_local_timers(void)
 	raise_softirq(TIMER_SOFTIRQ);
 }
 
-static void process_timeout(unsigned long __data)
+/*
+ * Since schedule_timeout()'s timer is defined on the stack, it must store
+ * the target task on the stack as well.
+ */
+struct process_timer {
+	struct timer_list timer;
+	struct task_struct *task;
+};
+
+static void process_timeout(struct timer_list *t)
 {
-	wake_up_process((struct task_struct *)__data);
+	struct process_timer *timeout = from_timer(timeout, t, timer);
+
+	wake_up_process(timeout->task);
 }
 
 /**
@@ -1704,7 +1749,7 @@ static void process_timeout(unsigned long __data)
  */
 signed long __sched schedule_timeout(signed long timeout)
 {
-	struct timer_list timer;
+	struct process_timer timer;
 	unsigned long expire;
 
 	switch (timeout)
@@ -1738,13 +1783,14 @@ signed long __sched schedule_timeout(signed long timeout)
 
 	expire = timeout + jiffies;
 
-	setup_timer_on_stack(&timer, process_timeout, (unsigned long)current);
-	__mod_timer(&timer, expire, false);
+	timer.task = current;
+	timer_setup_on_stack(&timer.timer, process_timeout, 0);
+	__mod_timer(&timer.timer, expire, 0);
 	schedule();
-	del_singleshot_timer_sync(&timer);
+	del_singleshot_timer_sync(&timer.timer);
 
 	/* Remove the timer from the object tracker */
-	destroy_timer_on_stack(&timer);
+	destroy_timer_on_stack(&timer.timer);
 
 	timeout = expire - jiffies;
 
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index 90f2701d92a7..19a15b2f1190 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 # Do not instrument the tracer itself:
 
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 2a685b45b73b..206e0e2ace53 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -66,7 +66,8 @@ static struct tracer_flags blk_tracer_flags = {
 };
 
 /* Global reference count of probes */
-static atomic_t blk_probes_ref = ATOMIC_INIT(0);
+static DEFINE_MUTEX(blk_probe_mutex);
+static int blk_probes_ref;
 
 static void blk_register_tracepoints(void);
 static void blk_unregister_tracepoints(void);
@@ -329,14 +330,29 @@ static void blk_trace_free(struct blk_trace *bt)
 	kfree(bt);
 }
 
+static void get_probe_ref(void)
+{
+	mutex_lock(&blk_probe_mutex);
+	if (++blk_probes_ref == 1)
+		blk_register_tracepoints();
+	mutex_unlock(&blk_probe_mutex);
+}
+
+static void put_probe_ref(void)
+{
+	mutex_lock(&blk_probe_mutex);
+	if (!--blk_probes_ref)
+		blk_unregister_tracepoints();
+	mutex_unlock(&blk_probe_mutex);
+}
+
 static void blk_trace_cleanup(struct blk_trace *bt)
 {
 	blk_trace_free(bt);
-	if (atomic_dec_and_test(&blk_probes_ref))
-		blk_unregister_tracepoints();
+	put_probe_ref();
 }
 
-int blk_trace_remove(struct request_queue *q)
+static int __blk_trace_remove(struct request_queue *q)
 {
 	struct blk_trace *bt;
 
@@ -349,6 +365,17 @@ int blk_trace_remove(struct request_queue *q)
 
 	return 0;
 }
+
+int blk_trace_remove(struct request_queue *q)
+{
+	int ret;
+
+	mutex_lock(&q->blk_trace_mutex);
+	ret = __blk_trace_remove(q);
+	mutex_unlock(&q->blk_trace_mutex);
+
+	return ret;
+}
 EXPORT_SYMBOL_GPL(blk_trace_remove);
 
 static ssize_t blk_dropped_read(struct file *filp, char __user *buffer,
@@ -538,8 +565,7 @@ static int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
 	if (cmpxchg(&q->blk_trace, NULL, bt))
 		goto err;
 
-	if (atomic_inc_return(&blk_probes_ref) == 1)
-		blk_register_tracepoints();
+	get_probe_ref();
 
 	ret = 0;
 err:
@@ -550,9 +576,8 @@ err:
 	return ret;
 }
 
-int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
-		    struct block_device *bdev,
-		    char __user *arg)
+static int __blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
+			     struct block_device *bdev, char __user *arg)
 {
 	struct blk_user_trace_setup buts;
 	int ret;
@@ -571,6 +596,19 @@ int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
 	}
 	return 0;
 }
+
+int blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
+		    struct block_device *bdev,
+		    char __user *arg)
+{
+	int ret;
+
+	mutex_lock(&q->blk_trace_mutex);
+	ret = __blk_trace_setup(q, name, dev, bdev, arg);
+	mutex_unlock(&q->blk_trace_mutex);
+
+	return ret;
+}
 EXPORT_SYMBOL_GPL(blk_trace_setup);
 
 #if defined(CONFIG_COMPAT) && defined(CONFIG_X86_64)
@@ -607,7 +645,7 @@ static int compat_blk_trace_setup(struct request_queue *q, char *name,
 }
 #endif
 
-int blk_trace_startstop(struct request_queue *q, int start)
+static int __blk_trace_startstop(struct request_queue *q, int start)
 {
 	int ret;
 	struct blk_trace *bt = q->blk_trace;
@@ -646,8 +684,25 @@ int blk_trace_startstop(struct request_queue *q, int start)
 
 	return ret;
 }
+
+int blk_trace_startstop(struct request_queue *q, int start)
+{
+	int ret;
+
+	mutex_lock(&q->blk_trace_mutex);
+	ret = __blk_trace_startstop(q, start);
+	mutex_unlock(&q->blk_trace_mutex);
+
+	return ret;
+}
 EXPORT_SYMBOL_GPL(blk_trace_startstop);
 
+/*
+ * When reading or writing the blktrace sysfs files, the references to the
+ * opened sysfs or device files should prevent the underlying block device
+ * from being removed. So no further delete protection is really needed.
+ */
+
 /**
  * blk_trace_ioctl: - handle the ioctls associated with tracing
  * @bdev:	the block device
@@ -665,12 +720,12 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
 	if (!q)
 		return -ENXIO;
 
-	mutex_lock(&bdev->bd_mutex);
+	mutex_lock(&q->blk_trace_mutex);
 
 	switch (cmd) {
 	case BLKTRACESETUP:
 		bdevname(bdev, b);
-		ret = blk_trace_setup(q, b, bdev->bd_dev, bdev, arg);
+		ret = __blk_trace_setup(q, b, bdev->bd_dev, bdev, arg);
 		break;
 #if defined(CONFIG_COMPAT) && defined(CONFIG_X86_64)
 	case BLKTRACESETUP32:
@@ -681,17 +736,17 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
 	case BLKTRACESTART:
 		start = 1;
 	case BLKTRACESTOP:
-		ret = blk_trace_startstop(q, start);
+		ret = __blk_trace_startstop(q, start);
 		break;
 	case BLKTRACETEARDOWN:
-		ret = blk_trace_remove(q);
+		ret = __blk_trace_remove(q);
 		break;
 	default:
 		ret = -ENOTTY;
 		break;
 	}
 
-	mutex_unlock(&bdev->bd_mutex);
+	mutex_unlock(&q->blk_trace_mutex);
 	return ret;
 }
 
@@ -702,10 +757,14 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
  **/
 void blk_trace_shutdown(struct request_queue *q)
 {
+	mutex_lock(&q->blk_trace_mutex);
+
 	if (q->blk_trace) {
-		blk_trace_startstop(q, 0);
-		blk_trace_remove(q);
+		__blk_trace_startstop(q, 0);
+		__blk_trace_remove(q);
 	}
+
+	mutex_unlock(&q->blk_trace_mutex);
 }
 
 #ifdef CONFIG_BLK_CGROUP
@@ -1552,9 +1611,7 @@ static int blk_trace_remove_queue(struct request_queue *q)
 	if (bt == NULL)
 		return -EINVAL;
 
-	if (atomic_dec_and_test(&blk_probes_ref))
-		blk_unregister_tracepoints();
-
+	put_probe_ref();
 	blk_trace_free(bt);
 	return 0;
 }
@@ -1585,8 +1642,7 @@ static int blk_trace_setup_queue(struct request_queue *q,
 	if (cmpxchg(&q->blk_trace, NULL, bt))
 		goto free_bt;
 
-	if (atomic_inc_return(&blk_probes_ref) == 1)
-		blk_register_tracepoints();
+	get_probe_ref();
 	return 0;
 
 free_bt:
@@ -1727,7 +1783,7 @@ static ssize_t sysfs_blk_trace_attr_show(struct device *dev,
 	if (q == NULL)
 		goto out_bdput;
 
-	mutex_lock(&bdev->bd_mutex);
+	mutex_lock(&q->blk_trace_mutex);
 
 	if (attr == &dev_attr_enable) {
 		ret = sprintf(buf, "%u\n", !!q->blk_trace);
@@ -1746,7 +1802,7 @@ static ssize_t sysfs_blk_trace_attr_show(struct device *dev,
 		ret = sprintf(buf, "%llu\n", q->blk_trace->end_lba);
 
 out_unlock_bdev:
-	mutex_unlock(&bdev->bd_mutex);
+	mutex_unlock(&q->blk_trace_mutex);
 out_bdput:
 	bdput(bdev);
 out:
@@ -1788,7 +1844,7 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev,
 	if (q == NULL)
 		goto out_bdput;
 
-	mutex_lock(&bdev->bd_mutex);
+	mutex_lock(&q->blk_trace_mutex);
 
 	if (attr == &dev_attr_enable) {
 		if (value)
@@ -1814,7 +1870,7 @@ static ssize_t sysfs_blk_trace_attr_store(struct device *dev,
 	}
 
 out_unlock_bdev:
-	mutex_unlock(&bdev->bd_mutex);
+	mutex_unlock(&q->blk_trace_mutex);
 out_bdput:
 	bdput(bdev);
 out:
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index dc498b605d5d..95888ae6c263 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -275,7 +275,7 @@ BPF_CALL_2(bpf_perf_event_read, struct bpf_map *, map, u64, flags)
 	if (!ee)
 		return -ENOENT;
 
-	err = perf_event_read_local(ee->event, &value);
+	err = perf_event_read_local(ee->event, &value, NULL, NULL);
 	/*
 	 * this api is ugly since we miss [-22..-2] range of valid
 	 * counter values, but that's uapi
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 6abfafd7f173..8319e09e15b9 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4954,9 +4954,6 @@ static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
 static char ftrace_graph_notrace_buf[FTRACE_FILTER_SIZE] __initdata;
 static int ftrace_graph_set_hash(struct ftrace_hash *hash, char *buffer);
 
-static unsigned long save_global_trampoline;
-static unsigned long save_global_flags;
-
 static int __init set_graph_function(char *str)
 {
 	strlcpy(ftrace_graph_buf, str, FTRACE_FILTER_SIZE);
@@ -6808,17 +6805,6 @@ void unregister_ftrace_graph(void)
 	unregister_pm_notifier(&ftrace_suspend_notifier);
 	unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);
 
-#ifdef CONFIG_DYNAMIC_FTRACE
-	/*
-	 * Function graph does not allocate the trampoline, but
-	 * other global_ops do. We need to reset the ALLOC_TRAMP flag
-	 * if one was used.
-	 */
-	global_ops.trampoline = save_global_trampoline;
-	if (save_global_flags & FTRACE_OPS_FL_ALLOC_TRAMP)
-		global_ops.flags |= FTRACE_OPS_FL_ALLOC_TRAMP;
-#endif
-
  out:
 	mutex_unlock(&ftrace_lock);
 }
diff --git a/kernel/trace/power-traces.c b/kernel/trace/power-traces.c
index 0c7dee221dca..21bb161c2316 100644
--- a/kernel/trace/power-traces.c
+++ b/kernel/trace/power-traces.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Power trace points
  *
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 81279c6602ff..845f3805c73d 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2724,7 +2724,7 @@ rb_reserve_next_event(struct ring_buffer *buffer,
 	 * if it happened, we have to fail the write.
 	 */
 	barrier();
-	if (unlikely(ACCESS_ONCE(cpu_buffer->buffer) != buffer)) {
+	if (unlikely(READ_ONCE(cpu_buffer->buffer) != buffer)) {
 		local_dec(&cpu_buffer->committing);
 		local_dec(&cpu_buffer->commits);
 		return NULL;
diff --git a/kernel/trace/rpm-traces.c b/kernel/trace/rpm-traces.c
index 4b3b5eaf94d1..25dec0b00280 100644
--- a/kernel/trace/rpm-traces.c
+++ b/kernel/trace/rpm-traces.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Power trace points
  *
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 5360b7aec57a..752e5daf0896 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4020,11 +4020,17 @@ static int tracing_open(struct inode *inode, struct file *file)
 	/* If this file was open for write, then erase contents */
 	if ((file->f_mode & FMODE_WRITE) && (file->f_flags & O_TRUNC)) {
 		int cpu = tracing_get_cpu(inode);
+		struct trace_buffer *trace_buf = &tr->trace_buffer;
+
+#ifdef CONFIG_TRACER_MAX_TRACE
+		if (tr->current_trace->print_max)
+			trace_buf = &tr->max_buffer;
+#endif
 
 		if (cpu == RING_BUFFER_ALL_CPUS)
-			tracing_reset_online_cpus(&tr->trace_buffer);
+			tracing_reset_online_cpus(trace_buf);
 		else
-			tracing_reset(&tr->trace_buffer, cpu);
+			tracing_reset(trace_buf, cpu);
 	}
 
 	if (file->f_mode & FMODE_READ) {
@@ -5358,6 +5364,13 @@ static int tracing_set_tracer(struct trace_array *tr, const char *buf)
 	if (t == tr->current_trace)
 		goto out;
 
+	/* Some tracers won't work on kernel command line */
+	if (system_state < SYSTEM_RUNNING && t->noboot) {
+		pr_warn("Tracer '%s' is not allowed on command line, ignored\n",
+			t->name);
+		goto out;
+	}
+
 	/* Some tracers are only allowed for the top level buffer */
 	if (!trace_ok_for_array(t, tr)) {
 		ret = -EINVAL;
@@ -5667,7 +5680,7 @@ static int tracing_wait_pipe(struct file *filp)
 		 *
 		 * iter->pos will be 0 if we haven't read anything.
 		 */
-		if (!tracing_is_on() && iter->pos)
+		if (!tracer_tracing_is_on(iter->tr) && iter->pos)
 			break;
 
 		mutex_unlock(&iter->mutex);
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index fb5d54d0d1b3..6b0b343a36a2 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef _LINUX_KERNEL_TRACE_H
 #define _LINUX_KERNEL_TRACE_H
@@ -444,6 +445,8 @@ struct tracer {
 #ifdef CONFIG_TRACER_MAX_TRACE
 	bool			use_max_tr;
 #endif
+	/* True if tracer cannot be enabled in kernel param */
+	bool			noboot;
 };
 
 
@@ -1457,7 +1460,7 @@ extern struct trace_event_file *find_event_file(struct trace_array *tr,
 
 static inline void *event_file_data(struct file *filp)
 {
-	return ACCESS_ONCE(file_inode(filp)->i_private);
+	return READ_ONCE(file_inode(filp)->i_private);
 }
 
 extern struct mutex event_mutex;
diff --git a/kernel/trace/trace_benchmark.c b/kernel/trace/trace_benchmark.c
index 16a8cf02eee9..79f838a75077 100644
--- a/kernel/trace/trace_benchmark.c
+++ b/kernel/trace/trace_benchmark.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/kthread.h>
diff --git a/kernel/trace/trace_benchmark.h b/kernel/trace/trace_benchmark.h
index ebdbfc2f2a64..be1d86ff753d 100644
--- a/kernel/trace/trace_benchmark.h
+++ b/kernel/trace/trace_benchmark.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM benchmark
 
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index 4d8fdf3184dc..4ad967453b6f 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * unlikely profiler
  *
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index adcdbbeae010..e954ae3d82c0 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file defines the trace event structures that go into the ring
  * buffer directly. They are created via macros so that changes for them
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 181e139a8057..61e7f0678d33 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -702,7 +702,7 @@ static void append_filter_err(struct filter_parse_state *ps,
 	int pos = ps->lasterr_pos;
 	char *buf, *pbuf;
 
-	buf = (char *)__get_free_page(GFP_TEMPORARY);
+	buf = (char *)__get_free_page(GFP_KERNEL);
 	if (!buf)
 		return;
 
diff --git a/kernel/trace/trace_events_filter_test.h b/kernel/trace/trace_events_filter_test.h
index bfd4dba0d603..39d7ef4f57cb 100644
--- a/kernel/trace/trace_events_filter_test.h
+++ b/kernel/trace/trace_events_filter_test.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM test
 
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 39aa7aa66468..548e62eb5c46 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * trace_export.c - export basic ftrace utilities to user space
  *
diff --git a/kernel/trace/trace_functions.c b/kernel/trace/trace_functions.c
index a0910c0cdf2e..27f7ad12c4b1 100644
--- a/kernel/trace/trace_functions.c
+++ b/kernel/trace/trace_functions.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ring buffer based function tracer
  *
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index b8f1f54731af..23c0b0cb5fb9 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  * Function graph tracer.
diff --git a/kernel/trace/trace_kdb.c b/kernel/trace/trace_kdb.c
index 57149bce6aad..d953c163a079 100644
--- a/kernel/trace/trace_kdb.c
+++ b/kernel/trace/trace_kdb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * kdb helper for dumping the ftrace buffer
  *
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index cd7480d0a201..b0388016b687 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Memory mapped I/O tracing
  *
@@ -282,6 +283,7 @@ static struct tracer mmio_tracer __read_mostly =
 	.close		= mmio_close,
 	.read		= mmio_read,
 	.print_line	= mmio_print_line,
+	.noboot		= true,
 };
 
 __init static int init_mmio_trace(void)
diff --git a/kernel/trace/trace_nop.c b/kernel/trace/trace_nop.c
index 49f61fe96a6b..50523f953a5d 100644
--- a/kernel/trace/trace_nop.c
+++ b/kernel/trace/trace_nop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * nop tracer
  *
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index bac629af2285..90db994ac900 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -656,15 +656,6 @@ int trace_print_lat_context(struct trace_iterator *iter)
 	return !trace_seq_has_overflowed(s);
 }
 
-static const char state_to_char[] = TASK_STATE_TO_CHAR_STR;
-
-static int task_state_char(unsigned long state)
-{
-	int bit = state ? __ffs(state) + 1 : 0;
-
-	return bit < sizeof(state_to_char) - 1 ? state_to_char[bit] : '?';
-}
-
 /**
  * ftrace_find_event - find a registered event
  * @type: the type of event to look for
@@ -930,8 +921,8 @@ static enum print_line_t trace_ctxwake_print(struct trace_iterator *iter,
 
 	trace_assign_type(field, iter->ent);
 
-	T = task_state_char(field->next_state);
-	S = task_state_char(field->prev_state);
+	T = task_index_to_char(field->next_state);
+	S = task_index_to_char(field->prev_state);
 	trace_find_cmdline(field->next_pid, comm);
 	trace_seq_printf(&iter->seq,
 			 " %5d:%3d:%c %s [%03d] %5d:%3d:%c %s\n",
@@ -966,8 +957,8 @@ static int trace_ctxwake_raw(struct trace_iterator *iter, char S)
 	trace_assign_type(field, iter->ent);
 
 	if (!S)
-		S = task_state_char(field->prev_state);
-	T = task_state_char(field->next_state);
+		S = task_index_to_char(field->prev_state);
+	T = task_index_to_char(field->next_state);
 	trace_seq_printf(&iter->seq, "%d %d %c %d %d %d %c\n",
 			 field->prev_pid,
 			 field->prev_prio,
@@ -1002,8 +993,8 @@ static int trace_ctxwake_hex(struct trace_iterator *iter, char S)
 	trace_assign_type(field, iter->ent);
 
 	if (!S)
-		S = task_state_char(field->prev_state);
-	T = task_state_char(field->next_state);
+		S = task_index_to_char(field->prev_state);
+	T = task_index_to_char(field->next_state);
 
 	SEQ_PUT_HEX_FIELD(s, field->prev_pid);
 	SEQ_PUT_HEX_FIELD(s, field->prev_prio);
diff --git a/kernel/trace/trace_output.h b/kernel/trace/trace_output.h
index fabc49bcd493..dbba03ed96de 100644
--- a/kernel/trace/trace_output.h
+++ b/kernel/trace/trace_output.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TRACE_EVENTS_H
 #define __TRACE_EVENTS_H
 
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index b341c02730be..e288168661e1 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * trace context switch
  *
diff --git a/kernel/trace/trace_sched_wakeup.c b/kernel/trace/trace_sched_wakeup.c
index ddec53b67646..a86b303e6c67 100644
--- a/kernel/trace/trace_sched_wakeup.c
+++ b/kernel/trace/trace_sched_wakeup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * trace task wakeup timings
  *
@@ -397,10 +398,10 @@ tracing_sched_switch_trace(struct trace_array *tr,
 	entry	= ring_buffer_event_data(event);
 	entry->prev_pid			= prev->pid;
 	entry->prev_prio		= prev->prio;
-	entry->prev_state		= prev->state;
+	entry->prev_state		= task_state_index(prev);
 	entry->next_pid			= next->pid;
 	entry->next_prio		= next->prio;
-	entry->next_state		= next->state;
+	entry->next_state		= task_state_index(next);
 	entry->next_cpu	= task_cpu(next);
 
 	if (!call_filter_check_discard(call, entry, buffer, event))
@@ -425,10 +426,10 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
 	entry	= ring_buffer_event_data(event);
 	entry->prev_pid			= curr->pid;
 	entry->prev_prio		= curr->prio;
-	entry->prev_state		= curr->state;
+	entry->prev_state		= task_state_index(curr);
 	entry->next_pid			= wakee->pid;
 	entry->next_prio		= wakee->prio;
-	entry->next_state		= wakee->state;
+	entry->next_state		= task_state_index(wakee);
 	entry->next_cpu			= task_cpu(wakee);
 
 	if (!call_filter_check_discard(call, entry, buffer, event))
diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c
index b17ec642793b..cd70eb5df38e 100644
--- a/kernel/trace/trace_selftest.c
+++ b/kernel/trace/trace_selftest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Include in trace.c */
 
 #include <uapi/linux/sched/types.h>
diff --git a/kernel/trace/trace_selftest_dynamic.c b/kernel/trace/trace_selftest_dynamic.c
index b4c475a0a48b..8cda06a10d66 100644
--- a/kernel/trace/trace_selftest_dynamic.c
+++ b/kernel/trace/trace_selftest_dynamic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "trace.h"
 
 int DYN_FTRACE_TEST_NAME(void)
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
index a4df67cbc711..734accc02418 100644
--- a/kernel/trace/trace_stack.c
+++ b/kernel/trace/trace_stack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2008 Steven Rostedt <srostedt@redhat.com>
  *
@@ -77,7 +78,7 @@ check_stack(unsigned long ip, unsigned long *stack)
 {
 	unsigned long this_size, flags; unsigned long *p, *top, *start;
 	static int tracer_frame;
-	int frame_size = ACCESS_ONCE(tracer_frame);
+	int frame_size = READ_ONCE(tracer_frame);
 	int i, x;
 
 	this_size = ((unsigned long)stack) & (THREAD_SIZE-1);
@@ -96,23 +97,9 @@ check_stack(unsigned long ip, unsigned long *stack)
 	if (in_nmi())
 		return;
 
-	/*
-	 * There's a slight chance that we are tracing inside the
-	 * RCU infrastructure, and rcu_irq_enter() will not work
-	 * as expected.
-	 */
-	if (unlikely(rcu_irq_enter_disabled()))
-		return;
-
 	local_irq_save(flags);
 	arch_spin_lock(&stack_trace_max_lock);
 
-	/*
-	 * RCU may not be watching, make it see us.
-	 * The stack trace code uses rcu_sched.
-	 */
-	rcu_irq_enter();
-
 	/* In case another CPU set the tracer_frame on us */
 	if (unlikely(!frame_size))
 		this_size -= tracer_frame;
@@ -205,7 +192,6 @@ check_stack(unsigned long ip, unsigned long *stack)
 	}
 
  out:
-	rcu_irq_exit();
 	arch_spin_unlock(&stack_trace_max_lock);
 	local_irq_restore(flags);
 }
diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c
index 413ff108fbd0..75bf1bcb4a8a 100644
--- a/kernel/trace/trace_stat.c
+++ b/kernel/trace/trace_stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Infrastructure for statistic tracing (histogram output).
  *
diff --git a/kernel/trace/trace_stat.h b/kernel/trace/trace_stat.h
index 8f03914b9a6a..76d30b4ebe83 100644
--- a/kernel/trace/trace_stat.h
+++ b/kernel/trace/trace_stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TRACE_STAT_H
 #define __TRACE_STAT_H
 
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 9c4eef20301c..a2a642f2c64f 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <trace/syscall.h>
 #include <trace/events/syscalls.h>
 #include <linux/syscalls.h>
@@ -565,7 +566,7 @@ static int perf_call_bpf_enter(struct bpf_prog *prog, struct pt_regs *regs,
 	struct syscall_tp_t {
 		unsigned long long regs;
 		unsigned long syscall_nr;
-		unsigned long args[sys_data->nb_args];
+		unsigned long args[SYSCALL_DEFINE_MAXARGS];
 	} param;
 	int i;
 
diff --git a/kernel/trace/tracing_map.h b/kernel/trace/tracing_map.h
index 618838f5f30a..ab0ca77331d0 100644
--- a/kernel/trace/tracing_map.h
+++ b/kernel/trace/tracing_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TRACING_MAP_H
 #define __TRACING_MAP_H
 
diff --git a/kernel/uid16.c b/kernel/uid16.c
index 5c2dc5b2bf4f..ce74a4901d2b 100644
--- a/kernel/uid16.c
+++ b/kernel/uid16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Wrapper functions for 16bit uid back compatibility. All nicely tied
  *	together in the faint hope we can take the out in five years time.
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index c490f1e4313b..d32b45662fb6 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -894,7 +894,7 @@ static bool new_idmap_permitted(const struct file *file,
 int proc_setgroups_show(struct seq_file *seq, void *v)
 {
 	struct user_namespace *ns = seq->private;
-	unsigned long userns_flags = ACCESS_ONCE(ns->flags);
+	unsigned long userns_flags = READ_ONCE(ns->flags);
 
 	seq_printf(seq, "%s\n",
 		   (userns_flags & USERNS_SETGROUPS_ALLOWED) ?
diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index f5d52024f6b7..576d18045811 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Detect hard and soft lockups on a system
  *
@@ -24,25 +25,35 @@
 #include <linux/workqueue.h>
 #include <linux/sched/clock.h>
 #include <linux/sched/debug.h>
+#include <linux/sched/isolation.h>
 
 #include <asm/irq_regs.h>
 #include <linux/kvm_para.h>
 #include <linux/kthread.h>
 
-/* Watchdog configuration */
-static DEFINE_MUTEX(watchdog_proc_mutex);
-
-int __read_mostly nmi_watchdog_enabled;
+static DEFINE_MUTEX(watchdog_mutex);
 
 #if defined(CONFIG_HARDLOCKUP_DETECTOR) || defined(CONFIG_HAVE_NMI_WATCHDOG)
-unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED |
-						NMI_WATCHDOG_ENABLED;
+# define WATCHDOG_DEFAULT	(SOFT_WATCHDOG_ENABLED | NMI_WATCHDOG_ENABLED)
+# define NMI_WATCHDOG_DEFAULT	1
 #else
-unsigned long __read_mostly watchdog_enabled = SOFT_WATCHDOG_ENABLED;
+# define WATCHDOG_DEFAULT	(SOFT_WATCHDOG_ENABLED)
+# define NMI_WATCHDOG_DEFAULT	0
 #endif
 
+unsigned long __read_mostly watchdog_enabled;
+int __read_mostly watchdog_user_enabled = 1;
+int __read_mostly nmi_watchdog_user_enabled = NMI_WATCHDOG_DEFAULT;
+int __read_mostly soft_watchdog_user_enabled = 1;
+int __read_mostly watchdog_thresh = 10;
+int __read_mostly nmi_watchdog_available;
+
+struct cpumask watchdog_allowed_mask __read_mostly;
+
+struct cpumask watchdog_cpumask __read_mostly;
+unsigned long *watchdog_cpumask_bits = cpumask_bits(&watchdog_cpumask);
+
 #ifdef CONFIG_HARDLOCKUP_DETECTOR
-/* boot commands */
 /*
  * Should we panic when a soft-lockup or hard-lockup occurs:
  */
@@ -56,9 +67,9 @@ unsigned int __read_mostly hardlockup_panic =
  * kernel command line parameters are parsed, because otherwise it is not
  * possible to override this in hardlockup_panic_setup().
  */
-void hardlockup_detector_disable(void)
+void __init hardlockup_detector_disable(void)
 {
-	watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
+	nmi_watchdog_user_enabled = 0;
 }
 
 static int __init hardlockup_panic_setup(char *str)
@@ -68,48 +79,24 @@ static int __init hardlockup_panic_setup(char *str)
 	else if (!strncmp(str, "nopanic", 7))
 		hardlockup_panic = 0;
 	else if (!strncmp(str, "0", 1))
-		watchdog_enabled &= ~NMI_WATCHDOG_ENABLED;
+		nmi_watchdog_user_enabled = 0;
 	else if (!strncmp(str, "1", 1))
-		watchdog_enabled |= NMI_WATCHDOG_ENABLED;
+		nmi_watchdog_user_enabled = 1;
 	return 1;
 }
 __setup("nmi_watchdog=", hardlockup_panic_setup);
 
-#endif
-
-#ifdef CONFIG_SOFTLOCKUP_DETECTOR
-int __read_mostly soft_watchdog_enabled;
-#endif
-
-int __read_mostly watchdog_user_enabled;
-int __read_mostly watchdog_thresh = 10;
-
-#ifdef CONFIG_SMP
-int __read_mostly sysctl_softlockup_all_cpu_backtrace;
+# ifdef CONFIG_SMP
 int __read_mostly sysctl_hardlockup_all_cpu_backtrace;
-#endif
-struct cpumask watchdog_cpumask __read_mostly;
-unsigned long *watchdog_cpumask_bits = cpumask_bits(&watchdog_cpumask);
 
-/*
- * The 'watchdog_running' variable is set to 1 when the watchdog threads
- * are registered/started and is set to 0 when the watchdog threads are
- * unregistered/stopped, so it is an indicator whether the threads exist.
- */
-static int __read_mostly watchdog_running;
-/*
- * If a subsystem has a need to deactivate the watchdog temporarily, it
- * can use the suspend/resume interface to achieve this. The content of
- * the 'watchdog_suspended' variable reflects this state. Existing threads
- * are parked/unparked by the lockup_detector_{suspend|resume} functions
- * (see comment blocks pertaining to those functions for further details).
- *
- * 'watchdog_suspended' also prevents threads from being registered/started
- * or unregistered/stopped via parameters in /proc/sys/kernel, so the state
- * of 'watchdog_running' cannot change while the watchdog is deactivated
- * temporarily (see related code in 'proc' handlers).
- */
-int __read_mostly watchdog_suspended;
+static int __init hardlockup_all_cpu_backtrace_setup(char *str)
+{
+	sysctl_hardlockup_all_cpu_backtrace = !!simple_strtol(str, NULL, 0);
+	return 1;
+}
+__setup("hardlockup_all_cpu_backtrace=", hardlockup_all_cpu_backtrace_setup);
+# endif /* CONFIG_SMP */
+#endif /* CONFIG_HARDLOCKUP_DETECTOR */
 
 /*
  * These functions can be overridden if an architecture implements its
@@ -121,36 +108,68 @@ int __read_mostly watchdog_suspended;
  */
 int __weak watchdog_nmi_enable(unsigned int cpu)
 {
+	hardlockup_detector_perf_enable();
 	return 0;
 }
+
 void __weak watchdog_nmi_disable(unsigned int cpu)
 {
+	hardlockup_detector_perf_disable();
 }
 
-/*
- * watchdog_nmi_reconfigure can be implemented to be notified after any
- * watchdog configuration change. The arch hardlockup watchdog should
- * respond to the following variables:
- * - nmi_watchdog_enabled
+/* Return 0, if a NMI watchdog is available. Error code otherwise */
+int __weak __init watchdog_nmi_probe(void)
+{
+	return hardlockup_detector_perf_init();
+}
+
+/**
+ * watchdog_nmi_stop - Stop the watchdog for reconfiguration
+ *
+ * The reconfiguration steps are:
+ * watchdog_nmi_stop();
+ * update_variables();
+ * watchdog_nmi_start();
+ */
+void __weak watchdog_nmi_stop(void) { }
+
+/**
+ * watchdog_nmi_start - Start the watchdog after reconfiguration
+ *
+ * Counterpart to watchdog_nmi_stop().
+ *
+ * The following variables have been updated in update_variables() and
+ * contain the currently valid configuration:
+ * - watchdog_enabled
  * - watchdog_thresh
  * - watchdog_cpumask
- * - sysctl_hardlockup_all_cpu_backtrace
- * - hardlockup_panic
- * - watchdog_suspended
  */
-void __weak watchdog_nmi_reconfigure(void)
+void __weak watchdog_nmi_start(void) { }
+
+/**
+ * lockup_detector_update_enable - Update the sysctl enable bit
+ *
+ * Caller needs to make sure that the NMI/perf watchdogs are off, so this
+ * can't race with watchdog_nmi_disable().
+ */
+static void lockup_detector_update_enable(void)
 {
+	watchdog_enabled = 0;
+	if (!watchdog_user_enabled)
+		return;
+	if (nmi_watchdog_available && nmi_watchdog_user_enabled)
+		watchdog_enabled |= NMI_WATCHDOG_ENABLED;
+	if (soft_watchdog_user_enabled)
+		watchdog_enabled |= SOFT_WATCHDOG_ENABLED;
 }
 
-
 #ifdef CONFIG_SOFTLOCKUP_DETECTOR
 
-/* Helper for online, unparked cpus. */
-#define for_each_watchdog_cpu(cpu) \
-	for_each_cpu_and((cpu), cpu_online_mask, &watchdog_cpumask)
-
-atomic_t watchdog_park_in_progress = ATOMIC_INIT(0);
+/* Global variables, exported for sysctl */
+unsigned int __read_mostly softlockup_panic =
+			CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE;
 
+static bool softlockup_threads_initialized __read_mostly;
 static u64 __read_mostly sample_period;
 
 static DEFINE_PER_CPU(unsigned long, watchdog_touch_ts);
@@ -164,50 +183,40 @@ static DEFINE_PER_CPU(struct task_struct *, softlockup_task_ptr_saved);
 static DEFINE_PER_CPU(unsigned long, hrtimer_interrupts_saved);
 static unsigned long soft_lockup_nmi_warn;
 
-unsigned int __read_mostly softlockup_panic =
-			CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC_VALUE;
-
 static int __init softlockup_panic_setup(char *str)
 {
 	softlockup_panic = simple_strtoul(str, NULL, 0);
-
 	return 1;
 }
 __setup("softlockup_panic=", softlockup_panic_setup);
 
 static int __init nowatchdog_setup(char *str)
 {
-	watchdog_enabled = 0;
+	watchdog_user_enabled = 0;
 	return 1;
 }
 __setup("nowatchdog", nowatchdog_setup);
 
 static int __init nosoftlockup_setup(char *str)
 {
-	watchdog_enabled &= ~SOFT_WATCHDOG_ENABLED;
+	soft_watchdog_user_enabled = 0;
 	return 1;
 }
 __setup("nosoftlockup", nosoftlockup_setup);
 
 #ifdef CONFIG_SMP
+int __read_mostly sysctl_softlockup_all_cpu_backtrace;
+
 static int __init softlockup_all_cpu_backtrace_setup(char *str)
 {
-	sysctl_softlockup_all_cpu_backtrace =
-		!!simple_strtol(str, NULL, 0);
+	sysctl_softlockup_all_cpu_backtrace = !!simple_strtol(str, NULL, 0);
 	return 1;
 }
 __setup("softlockup_all_cpu_backtrace=", softlockup_all_cpu_backtrace_setup);
-#ifdef CONFIG_HARDLOCKUP_DETECTOR
-static int __init hardlockup_all_cpu_backtrace_setup(char *str)
-{
-	sysctl_hardlockup_all_cpu_backtrace =
-		!!simple_strtol(str, NULL, 0);
-	return 1;
-}
-__setup("hardlockup_all_cpu_backtrace=", hardlockup_all_cpu_backtrace_setup);
-#endif
 #endif
 
+static void __lockup_detector_cleanup(void);
+
 /*
  * Hard-lockup warnings should be triggered after just a few seconds. Soft-
  * lockups can have false positives under extreme conditions. So we generally
@@ -278,11 +287,15 @@ void touch_all_softlockup_watchdogs(void)
 	int cpu;
 
 	/*
-	 * this is done lockless
-	 * do we care if a 0 races with a timestamp?
-	 * all it means is the softlock check starts one cycle later
+	 * watchdog_mutex cannpt be taken here, as this might be called
+	 * from (soft)interrupt context, so the access to
+	 * watchdog_allowed_cpumask might race with a concurrent update.
+	 *
+	 * The watchdog time stamp can race against a concurrent real
+	 * update as well, the only side effect might be a cycle delay for
+	 * the softlockup check.
 	 */
-	for_each_watchdog_cpu(cpu)
+	for_each_cpu(cpu, &watchdog_allowed_mask)
 		per_cpu(watchdog_touch_ts, cpu) = 0;
 	wq_watchdog_touch(-1);
 }
@@ -322,9 +335,6 @@ static void watchdog_interrupt_count(void)
 	__this_cpu_inc(hrtimer_interrupts);
 }
 
-static int watchdog_enable_all_cpus(void);
-static void watchdog_disable_all_cpus(void);
-
 /* watchdog kicker functions */
 static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
 {
@@ -333,7 +343,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
 	int duration;
 	int softlockup_all_cpu_backtrace = sysctl_softlockup_all_cpu_backtrace;
 
-	if (atomic_read(&watchdog_park_in_progress) != 0)
+	if (!watchdog_enabled)
 		return HRTIMER_NORESTART;
 
 	/* kick the hardlockup detector */
@@ -447,32 +457,38 @@ static void watchdog_set_prio(unsigned int policy, unsigned int prio)
 
 static void watchdog_enable(unsigned int cpu)
 {
-	struct hrtimer *hrtimer = raw_cpu_ptr(&watchdog_hrtimer);
+	struct hrtimer *hrtimer = this_cpu_ptr(&watchdog_hrtimer);
 
-	/* kick off the timer for the hardlockup detector */
+	/*
+	 * Start the timer first to prevent the NMI watchdog triggering
+	 * before the timer has a chance to fire.
+	 */
 	hrtimer_init(hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	hrtimer->function = watchdog_timer_fn;
-
-	/* Enable the perf event */
-	watchdog_nmi_enable(cpu);
-
-	/* done here because hrtimer_start can only pin to smp_processor_id() */
 	hrtimer_start(hrtimer, ns_to_ktime(sample_period),
 		      HRTIMER_MODE_REL_PINNED);
 
-	/* initialize timestamp */
-	watchdog_set_prio(SCHED_FIFO, MAX_RT_PRIO - 1);
+	/* Initialize timestamp */
 	__touch_watchdog();
+	/* Enable the perf event */
+	if (watchdog_enabled & NMI_WATCHDOG_ENABLED)
+		watchdog_nmi_enable(cpu);
+
+	watchdog_set_prio(SCHED_FIFO, MAX_RT_PRIO - 1);
 }
 
 static void watchdog_disable(unsigned int cpu)
 {
-	struct hrtimer *hrtimer = raw_cpu_ptr(&watchdog_hrtimer);
+	struct hrtimer *hrtimer = this_cpu_ptr(&watchdog_hrtimer);
 
 	watchdog_set_prio(SCHED_NORMAL, 0);
-	hrtimer_cancel(hrtimer);
-	/* disable the perf event */
+	/*
+	 * Disable the perf event first. That prevents that a large delay
+	 * between disabling the timer and disabling the perf event causes
+	 * the perf NMI to detect a false positive.
+	 */
 	watchdog_nmi_disable(cpu);
+	hrtimer_cancel(hrtimer);
 }
 
 static void watchdog_cleanup(unsigned int cpu, bool online)
@@ -499,21 +515,6 @@ static void watchdog(unsigned int cpu)
 	__this_cpu_write(soft_lockup_hrtimer_cnt,
 			 __this_cpu_read(hrtimer_interrupts));
 	__touch_watchdog();
-
-	/*
-	 * watchdog_nmi_enable() clears the NMI_WATCHDOG_ENABLED bit in the
-	 * failure path. Check for failures that can occur asynchronously -
-	 * for example, when CPUs are on-lined - and shut down the hardware
-	 * perf event on each CPU accordingly.
-	 *
-	 * The only non-obvious place this bit can be cleared is through
-	 * watchdog_nmi_enable(), so a pr_info() is placed there.  Placing a
-	 * pr_info here would be too noisy as it would result in a message
-	 * every few seconds if the hardlockup was disabled but the softlockup
-	 * enabled.
-	 */
-	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
-		watchdog_nmi_disable(cpu);
 }
 
 static struct smp_hotplug_thread watchdog_threads = {
@@ -527,295 +528,174 @@ static struct smp_hotplug_thread watchdog_threads = {
 	.unpark			= watchdog_enable,
 };
 
-/*
- * park all watchdog threads that are specified in 'watchdog_cpumask'
- *
- * This function returns an error if kthread_park() of a watchdog thread
- * fails. In this situation, the watchdog threads of some CPUs can already
- * be parked and the watchdog threads of other CPUs can still be runnable.
- * Callers are expected to handle this special condition as appropriate in
- * their context.
- *
- * This function may only be called in a context that is protected against
- * races with CPU hotplug - for example, via get_online_cpus().
- */
-static int watchdog_park_threads(void)
+static void softlockup_update_smpboot_threads(void)
 {
-	int cpu, ret = 0;
-
-	atomic_set(&watchdog_park_in_progress, 1);
+	lockdep_assert_held(&watchdog_mutex);
 
-	for_each_watchdog_cpu(cpu) {
-		ret = kthread_park(per_cpu(softlockup_watchdog, cpu));
-		if (ret)
-			break;
-	}
-
-	atomic_set(&watchdog_park_in_progress, 0);
+	if (!softlockup_threads_initialized)
+		return;
 
-	return ret;
+	smpboot_update_cpumask_percpu_thread(&watchdog_threads,
+					     &watchdog_allowed_mask);
 }
 
-/*
- * unpark all watchdog threads that are specified in 'watchdog_cpumask'
- *
- * This function may only be called in a context that is protected against
- * races with CPU hotplug - for example, via get_online_cpus().
- */
-static void watchdog_unpark_threads(void)
+/* Temporarily park all watchdog threads */
+static void softlockup_park_all_threads(void)
 {
-	int cpu;
-
-	for_each_watchdog_cpu(cpu)
-		kthread_unpark(per_cpu(softlockup_watchdog, cpu));
+	cpumask_clear(&watchdog_allowed_mask);
+	softlockup_update_smpboot_threads();
 }
 
-static int update_watchdog_all_cpus(void)
+/* Unpark enabled threads */
+static void softlockup_unpark_threads(void)
 {
-	int ret;
-
-	ret = watchdog_park_threads();
-	if (ret)
-		return ret;
-
-	watchdog_unpark_threads();
-
-	return 0;
+	cpumask_copy(&watchdog_allowed_mask, &watchdog_cpumask);
+	softlockup_update_smpboot_threads();
 }
 
-static int watchdog_enable_all_cpus(void)
+static void lockup_detector_reconfigure(void)
 {
-	int err = 0;
-
-	if (!watchdog_running) {
-		err = smpboot_register_percpu_thread_cpumask(&watchdog_threads,
-							     &watchdog_cpumask);
-		if (err)
-			pr_err("Failed to create watchdog threads, disabled\n");
-		else
-			watchdog_running = 1;
-	} else {
-		/*
-		 * Enable/disable the lockup detectors or
-		 * change the sample period 'on the fly'.
-		 */
-		err = update_watchdog_all_cpus();
-
-		if (err) {
-			watchdog_disable_all_cpus();
-			pr_err("Failed to update lockup detectors, disabled\n");
-		}
-	}
-
-	if (err)
-		watchdog_enabled = 0;
-
-	return err;
+	cpus_read_lock();
+	watchdog_nmi_stop();
+	softlockup_park_all_threads();
+	set_sample_period();
+	lockup_detector_update_enable();
+	if (watchdog_enabled && watchdog_thresh)
+		softlockup_unpark_threads();
+	watchdog_nmi_start();
+	cpus_read_unlock();
+	/*
+	 * Must be called outside the cpus locked section to prevent
+	 * recursive locking in the perf code.
+	 */
+	__lockup_detector_cleanup();
 }
 
-static void watchdog_disable_all_cpus(void)
+/*
+ * Create the watchdog thread infrastructure and configure the detector(s).
+ *
+ * The threads are not unparked as watchdog_allowed_mask is empty.  When
+ * the threads are sucessfully initialized, take the proper locks and
+ * unpark the threads in the watchdog_cpumask if the watchdog is enabled.
+ */
+static __init void lockup_detector_setup(void)
 {
-	if (watchdog_running) {
-		watchdog_running = 0;
-		smpboot_unregister_percpu_thread(&watchdog_threads);
-	}
-}
+	int ret;
 
-#ifdef CONFIG_SYSCTL
-static int watchdog_update_cpus(void)
-{
-	return smpboot_update_cpumask_percpu_thread(
-		    &watchdog_threads, &watchdog_cpumask);
-}
-#endif
+	/*
+	 * If sysctl is off and watchdog got disabled on the command line,
+	 * nothing to do here.
+	 */
+	lockup_detector_update_enable();
 
-#else /* SOFTLOCKUP */
-static int watchdog_park_threads(void)
-{
-	return 0;
-}
+	if (!IS_ENABLED(CONFIG_SYSCTL) &&
+	    !(watchdog_enabled && watchdog_thresh))
+		return;
 
-static void watchdog_unpark_threads(void)
-{
-}
+	ret = smpboot_register_percpu_thread_cpumask(&watchdog_threads,
+						     &watchdog_allowed_mask);
+	if (ret) {
+		pr_err("Failed to initialize soft lockup detector threads\n");
+		return;
+	}
 
-static int watchdog_enable_all_cpus(void)
-{
-	return 0;
+	mutex_lock(&watchdog_mutex);
+	softlockup_threads_initialized = true;
+	lockup_detector_reconfigure();
+	mutex_unlock(&watchdog_mutex);
 }
 
-static void watchdog_disable_all_cpus(void)
+#else /* CONFIG_SOFTLOCKUP_DETECTOR */
+static inline int watchdog_park_threads(void) { return 0; }
+static inline void watchdog_unpark_threads(void) { }
+static inline int watchdog_enable_all_cpus(void) { return 0; }
+static inline void watchdog_disable_all_cpus(void) { }
+static void lockup_detector_reconfigure(void)
 {
+	cpus_read_lock();
+	watchdog_nmi_stop();
+	lockup_detector_update_enable();
+	watchdog_nmi_start();
+	cpus_read_unlock();
 }
-
-#ifdef CONFIG_SYSCTL
-static int watchdog_update_cpus(void)
+static inline void lockup_detector_setup(void)
 {
-	return 0;
+	lockup_detector_reconfigure();
 }
-#endif
+#endif /* !CONFIG_SOFTLOCKUP_DETECTOR */
 
-static void set_sample_period(void)
+static void __lockup_detector_cleanup(void)
 {
+	lockdep_assert_held(&watchdog_mutex);
+	hardlockup_detector_perf_cleanup();
 }
-#endif /* SOFTLOCKUP */
 
-/*
- * Suspend the hard and soft lockup detector by parking the watchdog threads.
+/**
+ * lockup_detector_cleanup - Cleanup after cpu hotplug or sysctl changes
+ *
+ * Caller must not hold the cpu hotplug rwsem.
  */
-int lockup_detector_suspend(void)
+void lockup_detector_cleanup(void)
 {
-	int ret = 0;
-
-	get_online_cpus();
-	mutex_lock(&watchdog_proc_mutex);
-	/*
-	 * Multiple suspend requests can be active in parallel (counted by
-	 * the 'watchdog_suspended' variable). If the watchdog threads are
-	 * running, the first caller takes care that they will be parked.
-	 * The state of 'watchdog_running' cannot change while a suspend
-	 * request is active (see related code in 'proc' handlers).
-	 */
-	if (watchdog_running && !watchdog_suspended)
-		ret = watchdog_park_threads();
-
-	if (ret == 0)
-		watchdog_suspended++;
-	else {
-		watchdog_disable_all_cpus();
-		pr_err("Failed to suspend lockup detectors, disabled\n");
-		watchdog_enabled = 0;
-	}
-
-	watchdog_nmi_reconfigure();
-
-	mutex_unlock(&watchdog_proc_mutex);
-
-	return ret;
+	mutex_lock(&watchdog_mutex);
+	__lockup_detector_cleanup();
+	mutex_unlock(&watchdog_mutex);
 }
 
-/*
- * Resume the hard and soft lockup detector by unparking the watchdog threads.
+/**
+ * lockup_detector_soft_poweroff - Interface to stop lockup detector(s)
+ *
+ * Special interface for parisc. It prevents lockup detector warnings from
+ * the default pm_poweroff() function which busy loops forever.
  */
-void lockup_detector_resume(void)
+void lockup_detector_soft_poweroff(void)
 {
-	mutex_lock(&watchdog_proc_mutex);
-
-	watchdog_suspended--;
-	/*
-	 * The watchdog threads are unparked if they were previously running
-	 * and if there is no more active suspend request.
-	 */
-	if (watchdog_running && !watchdog_suspended)
-		watchdog_unpark_threads();
-
-	watchdog_nmi_reconfigure();
-
-	mutex_unlock(&watchdog_proc_mutex);
-	put_online_cpus();
+	watchdog_enabled = 0;
 }
 
 #ifdef CONFIG_SYSCTL
 
-/*
- * Update the run state of the lockup detectors.
- */
-static int proc_watchdog_update(void)
+/* Propagate any changes to the watchdog threads */
+static void proc_watchdog_update(void)
 {
-	int err = 0;
-
-	/*
-	 * Watchdog threads won't be started if they are already active.
-	 * The 'watchdog_running' variable in watchdog_*_all_cpus() takes
-	 * care of this. If those threads are already active, the sample
-	 * period will be updated and the lockup detectors will be enabled
-	 * or disabled 'on the fly'.
-	 */
-	if (watchdog_enabled && watchdog_thresh)
-		err = watchdog_enable_all_cpus();
-	else
-		watchdog_disable_all_cpus();
-
-	watchdog_nmi_reconfigure();
-
-	return err;
-
+	/* Remove impossible cpus to keep sysctl output clean. */
+	cpumask_and(&watchdog_cpumask, &watchdog_cpumask, cpu_possible_mask);
+	lockup_detector_reconfigure();
 }
 
 /*
  * common function for watchdog, nmi_watchdog and soft_watchdog parameter
  *
- * caller             | table->data points to | 'which' contains the flag(s)
- * -------------------|-----------------------|-----------------------------
- * proc_watchdog      | watchdog_user_enabled | NMI_WATCHDOG_ENABLED or'ed
- *                    |                       | with SOFT_WATCHDOG_ENABLED
- * -------------------|-----------------------|-----------------------------
- * proc_nmi_watchdog  | nmi_watchdog_enabled  | NMI_WATCHDOG_ENABLED
- * -------------------|-----------------------|-----------------------------
- * proc_soft_watchdog | soft_watchdog_enabled | SOFT_WATCHDOG_ENABLED
+ * caller             | table->data points to      | 'which'
+ * -------------------|----------------------------|--------------------------
+ * proc_watchdog      | watchdog_user_enabled      | NMI_WATCHDOG_ENABLED |
+ *                    |                            | SOFT_WATCHDOG_ENABLED
+ * -------------------|----------------------------|--------------------------
+ * proc_nmi_watchdog  | nmi_watchdog_user_enabled  | NMI_WATCHDOG_ENABLED
+ * -------------------|----------------------------|--------------------------
+ * proc_soft_watchdog | soft_watchdog_user_enabled | SOFT_WATCHDOG_ENABLED
  */
 static int proc_watchdog_common(int which, struct ctl_table *table, int write,
 				void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	int err, old, new;
-	int *watchdog_param = (int *)table->data;
+	int err, old, *param = table->data;
 
-	get_online_cpus();
-	mutex_lock(&watchdog_proc_mutex);
+	mutex_lock(&watchdog_mutex);
 
-	if (watchdog_suspended) {
-		/* no parameter changes allowed while watchdog is suspended */
-		err = -EAGAIN;
-		goto out;
-	}
-
-	/*
-	 * If the parameter is being read return the state of the corresponding
-	 * bit(s) in 'watchdog_enabled', else update 'watchdog_enabled' and the
-	 * run state of the lockup detectors.
-	 */
 	if (!write) {
-		*watchdog_param = (watchdog_enabled & which) != 0;
+		/*
+		 * On read synchronize the userspace interface. This is a
+		 * racy snapshot.
+		 */
+		*param = (watchdog_enabled & which) != 0;
 		err = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
 	} else {
+		old = READ_ONCE(*param);
 		err = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
-		if (err)
-			goto out;
-
-		/*
-		 * There is a race window between fetching the current value
-		 * from 'watchdog_enabled' and storing the new value. During
-		 * this race window, watchdog_nmi_enable() can sneak in and
-		 * clear the NMI_WATCHDOG_ENABLED bit in 'watchdog_enabled'.
-		 * The 'cmpxchg' detects this race and the loop retries.
-		 */
-		do {
-			old = watchdog_enabled;
-			/*
-			 * If the parameter value is not zero set the
-			 * corresponding bit(s), else clear it(them).
-			 */
-			if (*watchdog_param)
-				new = old | which;
-			else
-				new = old & ~which;
-		} while (cmpxchg(&watchdog_enabled, old, new) != old);
-
-		/*
-		 * Update the run state of the lockup detectors. There is _no_
-		 * need to check the value returned by proc_watchdog_update()
-		 * and to restore the previous value of 'watchdog_enabled' as
-		 * both lockup detectors are disabled if proc_watchdog_update()
-		 * returns an error.
-		 */
-		if (old == new)
-			goto out;
-
-		err = proc_watchdog_update();
+		if (!err && old != READ_ONCE(*param))
+			proc_watchdog_update();
 	}
-out:
-	mutex_unlock(&watchdog_proc_mutex);
-	put_online_cpus();
+	mutex_unlock(&watchdog_mutex);
 	return err;
 }
 
@@ -835,6 +715,8 @@ int proc_watchdog(struct ctl_table *table, int write,
 int proc_nmi_watchdog(struct ctl_table *table, int write,
 		      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
+	if (!nmi_watchdog_available && write)
+		return -ENOTSUPP;
 	return proc_watchdog_common(NMI_WATCHDOG_ENABLED,
 				    table, write, buffer, lenp, ppos);
 }
@@ -855,39 +737,17 @@ int proc_soft_watchdog(struct ctl_table *table, int write,
 int proc_watchdog_thresh(struct ctl_table *table, int write,
 			 void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	int err, old, new;
-
-	get_online_cpus();
-	mutex_lock(&watchdog_proc_mutex);
+	int err, old;
 
-	if (watchdog_suspended) {
-		/* no parameter changes allowed while watchdog is suspended */
-		err = -EAGAIN;
-		goto out;
-	}
+	mutex_lock(&watchdog_mutex);
 
-	old = ACCESS_ONCE(watchdog_thresh);
+	old = READ_ONCE(watchdog_thresh);
 	err = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
 
-	if (err || !write)
-		goto out;
+	if (!err && write && old != READ_ONCE(watchdog_thresh))
+		proc_watchdog_update();
 
-	/*
-	 * Update the sample period. Restore on failure.
-	 */
-	new = ACCESS_ONCE(watchdog_thresh);
-	if (old == new)
-		goto out;
-
-	set_sample_period();
-	err = proc_watchdog_update();
-	if (err) {
-		watchdog_thresh = old;
-		set_sample_period();
-	}
-out:
-	mutex_unlock(&watchdog_proc_mutex);
-	put_online_cpus();
+	mutex_unlock(&watchdog_mutex);
 	return err;
 }
 
@@ -902,55 +762,26 @@ int proc_watchdog_cpumask(struct ctl_table *table, int write,
 {
 	int err;
 
-	get_online_cpus();
-	mutex_lock(&watchdog_proc_mutex);
-
-	if (watchdog_suspended) {
-		/* no parameter changes allowed while watchdog is suspended */
-		err = -EAGAIN;
-		goto out;
-	}
+	mutex_lock(&watchdog_mutex);
 
 	err = proc_do_large_bitmap(table, write, buffer, lenp, ppos);
-	if (!err && write) {
-		/* Remove impossible cpus to keep sysctl output cleaner. */
-		cpumask_and(&watchdog_cpumask, &watchdog_cpumask,
-			    cpu_possible_mask);
+	if (!err && write)
+		proc_watchdog_update();
 
-		if (watchdog_running) {
-			/*
-			 * Failure would be due to being unable to allocate
-			 * a temporary cpumask, so we are likely not in a
-			 * position to do much else to make things better.
-			 */
-			if (watchdog_update_cpus() != 0)
-				pr_err("cpumask update failed\n");
-		}
-
-		watchdog_nmi_reconfigure();
-	}
-out:
-	mutex_unlock(&watchdog_proc_mutex);
-	put_online_cpus();
+	mutex_unlock(&watchdog_mutex);
 	return err;
 }
-
 #endif /* CONFIG_SYSCTL */
 
 void __init lockup_detector_init(void)
 {
-	set_sample_period();
-
-#ifdef CONFIG_NO_HZ_FULL
-	if (tick_nohz_full_enabled()) {
+	if (tick_nohz_full_enabled())
 		pr_info("Disabling watchdog on nohz_full cores by default\n");
-		cpumask_copy(&watchdog_cpumask, housekeeping_mask);
-	} else
-		cpumask_copy(&watchdog_cpumask, cpu_possible_mask);
-#else
-	cpumask_copy(&watchdog_cpumask, cpu_possible_mask);
-#endif
 
-	if (watchdog_enabled)
-		watchdog_enable_all_cpus();
+	cpumask_copy(&watchdog_cpumask,
+		     housekeeping_cpumask(HK_FLAG_TIMER));
+
+	if (!watchdog_nmi_probe())
+		nmi_watchdog_available = true;
+	lockup_detector_setup();
 }
diff --git a/kernel/watchdog_hld.c b/kernel/watchdog_hld.c
index 3a09ea1b1d3d..e449a23e9d59 100644
--- a/kernel/watchdog_hld.c
+++ b/kernel/watchdog_hld.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Detect hard lockups on a system
  *
@@ -12,6 +13,7 @@
 #define pr_fmt(fmt) "NMI watchdog: " fmt
 
 #include <linux/nmi.h>
+#include <linux/atomic.h>
 #include <linux/module.h>
 #include <linux/sched/debug.h>
 
@@ -21,8 +23,11 @@
 static DEFINE_PER_CPU(bool, hard_watchdog_warn);
 static DEFINE_PER_CPU(bool, watchdog_nmi_touch);
 static DEFINE_PER_CPU(struct perf_event *, watchdog_ev);
+static DEFINE_PER_CPU(struct perf_event *, dead_event);
+static struct cpumask dead_events_mask;
 
 static unsigned long hardlockup_allcpu_dumped;
+static atomic_t watchdog_cpus = ATOMIC_INIT(0);
 
 void arch_touch_nmi_watchdog(void)
 {
@@ -103,15 +108,12 @@ static struct perf_event_attr wd_hw_attr = {
 
 /* Callback function for perf event subsystem */
 static void watchdog_overflow_callback(struct perf_event *event,
-		 struct perf_sample_data *data,
-		 struct pt_regs *regs)
+				       struct perf_sample_data *data,
+				       struct pt_regs *regs)
 {
 	/* Ensure the watchdog never gets throttled */
 	event->hw.interrupts = 0;
 
-	if (atomic_read(&watchdog_park_in_progress) != 0)
-		return;
-
 	if (__this_cpu_read(watchdog_nmi_touch) == true) {
 		__this_cpu_write(watchdog_nmi_touch, false);
 		return;
@@ -160,104 +162,134 @@ static void watchdog_overflow_callback(struct perf_event *event,
 	return;
 }
 
-/*
- * People like the simple clean cpu node info on boot.
- * Reduce the watchdog noise by only printing messages
- * that are different from what cpu0 displayed.
- */
-static unsigned long firstcpu_err;
-static atomic_t watchdog_cpus;
-
-int watchdog_nmi_enable(unsigned int cpu)
+static int hardlockup_detector_event_create(void)
 {
+	unsigned int cpu = smp_processor_id();
 	struct perf_event_attr *wd_attr;
-	struct perf_event *event = per_cpu(watchdog_ev, cpu);
-	int firstcpu = 0;
-
-	/* nothing to do if the hard lockup detector is disabled */
-	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
-		goto out;
-
-	/* is it already setup and enabled? */
-	if (event && event->state > PERF_EVENT_STATE_OFF)
-		goto out;
-
-	/* it is setup but not enabled */
-	if (event != NULL)
-		goto out_enable;
-
-	if (atomic_inc_return(&watchdog_cpus) == 1)
-		firstcpu = 1;
+	struct perf_event *evt;
 
 	wd_attr = &wd_hw_attr;
 	wd_attr->sample_period = hw_nmi_get_sample_period(watchdog_thresh);
 
 	/* Try to register using hardware perf events */
-	event = perf_event_create_kernel_counter(wd_attr, cpu, NULL, watchdog_overflow_callback, NULL);
+	evt = perf_event_create_kernel_counter(wd_attr, cpu, NULL,
+					       watchdog_overflow_callback, NULL);
+	if (IS_ERR(evt)) {
+		pr_info("Perf event create on CPU %d failed with %ld\n", cpu,
+			PTR_ERR(evt));
+		return PTR_ERR(evt);
+	}
+	this_cpu_write(watchdog_ev, evt);
+	return 0;
+}
 
-	/* save the first cpu's error for future comparision */
-	if (firstcpu && IS_ERR(event))
-		firstcpu_err = PTR_ERR(event);
+/**
+ * hardlockup_detector_perf_enable - Enable the local event
+ */
+void hardlockup_detector_perf_enable(void)
+{
+	if (hardlockup_detector_event_create())
+		return;
 
-	if (!IS_ERR(event)) {
-		/* only print for the first cpu initialized */
-		if (firstcpu || firstcpu_err)
-			pr_info("enabled on all CPUs, permanently consumes one hw-PMU counter.\n");
-		goto out_save;
-	}
+	/* use original value for check */
+	if (!atomic_fetch_inc(&watchdog_cpus))
+		pr_info("Enabled. Permanently consumes one hw-PMU counter.\n");
 
-	/*
-	 * Disable the hard lockup detector if _any_ CPU fails to set up
-	 * set up the hardware perf event. The watchdog() function checks
-	 * the NMI_WATCHDOG_ENABLED bit periodically.
-	 *
-	 * The barriers are for syncing up watchdog_enabled across all the
-	 * cpus, as clear_bit() does not use barriers.
-	 */
-	smp_mb__before_atomic();
-	clear_bit(NMI_WATCHDOG_ENABLED_BIT, &watchdog_enabled);
-	smp_mb__after_atomic();
-
-	/* skip displaying the same error again */
-	if (!firstcpu && (PTR_ERR(event) == firstcpu_err))
-		return PTR_ERR(event);
-
-	/* vary the KERN level based on the returned errno */
-	if (PTR_ERR(event) == -EOPNOTSUPP)
-		pr_info("disabled (cpu%i): not supported (no LAPIC?)\n", cpu);
-	else if (PTR_ERR(event) == -ENOENT)
-		pr_warn("disabled (cpu%i): hardware events not enabled\n",
-			 cpu);
-	else
-		pr_err("disabled (cpu%i): unable to create perf event: %ld\n",
-			cpu, PTR_ERR(event));
-
-	pr_info("Shutting down hard lockup detector on all cpus\n");
-
-	return PTR_ERR(event);
-
-	/* success path */
-out_save:
-	per_cpu(watchdog_ev, cpu) = event;
-out_enable:
-	perf_event_enable(per_cpu(watchdog_ev, cpu));
-out:
-	return 0;
+	perf_event_enable(this_cpu_read(watchdog_ev));
 }
 
-void watchdog_nmi_disable(unsigned int cpu)
+/**
+ * hardlockup_detector_perf_disable - Disable the local event
+ */
+void hardlockup_detector_perf_disable(void)
 {
-	struct perf_event *event = per_cpu(watchdog_ev, cpu);
+	struct perf_event *event = this_cpu_read(watchdog_ev);
 
 	if (event) {
 		perf_event_disable(event);
-		per_cpu(watchdog_ev, cpu) = NULL;
+		this_cpu_write(watchdog_ev, NULL);
+		this_cpu_write(dead_event, event);
+		cpumask_set_cpu(smp_processor_id(), &dead_events_mask);
+		atomic_dec(&watchdog_cpus);
+	}
+}
+
+/**
+ * hardlockup_detector_perf_cleanup - Cleanup disabled events and destroy them
+ *
+ * Called from lockup_detector_cleanup(). Serialized by the caller.
+ */
+void hardlockup_detector_perf_cleanup(void)
+{
+	int cpu;
+
+	for_each_cpu(cpu, &dead_events_mask) {
+		struct perf_event *event = per_cpu(dead_event, cpu);
 
-		/* should be in cleanup, but blocks oprofile */
-		perf_event_release_kernel(event);
+		/*
+		 * Required because for_each_cpu() reports  unconditionally
+		 * CPU0 as set on UP kernels. Sigh.
+		 */
+		if (event)
+			perf_event_release_kernel(event);
+		per_cpu(dead_event, cpu) = NULL;
+	}
+	cpumask_clear(&dead_events_mask);
+}
+
+/**
+ * hardlockup_detector_perf_stop - Globally stop watchdog events
+ *
+ * Special interface for x86 to handle the perf HT bug.
+ */
+void __init hardlockup_detector_perf_stop(void)
+{
+	int cpu;
+
+	lockdep_assert_cpus_held();
+
+	for_each_online_cpu(cpu) {
+		struct perf_event *event = per_cpu(watchdog_ev, cpu);
+
+		if (event)
+			perf_event_disable(event);
+	}
+}
+
+/**
+ * hardlockup_detector_perf_restart - Globally restart watchdog events
+ *
+ * Special interface for x86 to handle the perf HT bug.
+ */
+void __init hardlockup_detector_perf_restart(void)
+{
+	int cpu;
+
+	lockdep_assert_cpus_held();
+
+	if (!(watchdog_enabled & NMI_WATCHDOG_ENABLED))
+		return;
+
+	for_each_online_cpu(cpu) {
+		struct perf_event *event = per_cpu(watchdog_ev, cpu);
+
+		if (event)
+			perf_event_enable(event);
+	}
+}
+
+/**
+ * hardlockup_detector_perf_init - Probe whether NMI event is available at all
+ */
+int __init hardlockup_detector_perf_init(void)
+{
+	int ret = hardlockup_detector_event_create();
 
-		/* watchdog_nmi_enable() expects this to be zero initially. */
-		if (atomic_dec_and_test(&watchdog_cpus))
-			firstcpu_err = 0;
+	if (ret) {
+		pr_info("Perf NMI watchdog permanently disabled\n");
+	} else {
+		perf_event_release_kernel(this_cpu_read(watchdog_ev));
+		this_cpu_write(watchdog_ev, NULL);
 	}
+	return ret;
 }
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 64d0edf428f8..7368b57842ea 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -68,6 +68,7 @@ enum {
 	 * attach_mutex to avoid changing binding state while
 	 * worker_attach_to_pool() is in progress.
 	 */
+	POOL_MANAGER_ACTIVE	= 1 << 0,	/* being managed */
 	POOL_DISASSOCIATED	= 1 << 2,	/* cpu can't serve workers */
 
 	/* worker flags */
@@ -165,7 +166,6 @@ struct worker_pool {
 						/* L: hash of busy workers */
 
 	/* see manage_workers() for details on the two manager mutexes */
-	struct mutex		manager_arb;	/* manager arbitration */
 	struct worker		*manager;	/* L: purely informational */
 	struct mutex		attach_mutex;	/* attach/detach exclusion */
 	struct list_head	workers;	/* A: attached workers */
@@ -299,6 +299,7 @@ static struct workqueue_attrs *wq_update_unbound_numa_attrs_buf;
 
 static DEFINE_MUTEX(wq_pool_mutex);	/* protects pools and workqueues list */
 static DEFINE_SPINLOCK(wq_mayday_lock);	/* protects wq->maydays list */
+static DECLARE_WAIT_QUEUE_HEAD(wq_manager_wait); /* wait for manager to go away */
 
 static LIST_HEAD(workqueues);		/* PR: list of all workqueues */
 static bool workqueue_freezing;		/* PL: have wqs started freezing? */
@@ -801,7 +802,7 @@ static bool need_to_create_worker(struct worker_pool *pool)
 /* Do we have too many workers and should some go away? */
 static bool too_many_workers(struct worker_pool *pool)
 {
-	bool managing = mutex_is_locked(&pool->manager_arb);
+	bool managing = pool->flags & POOL_MANAGER_ACTIVE;
 	int nr_idle = pool->nr_idle + managing; /* manager is considered idle */
 	int nr_busy = pool->nr_workers - nr_idle;
 
@@ -1375,7 +1376,7 @@ static void __queue_work(int cpu, struct workqueue_struct *wq,
 	 * queued or lose PENDING.  Grabbing PENDING and queueing should
 	 * happen with IRQ disabled.
 	 */
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	debug_work_activate(work);
 
@@ -1492,9 +1493,9 @@ bool queue_work_on(int cpu, struct workqueue_struct *wq,
 }
 EXPORT_SYMBOL(queue_work_on);
 
-void delayed_work_timer_fn(unsigned long __data)
+void delayed_work_timer_fn(struct timer_list *t)
 {
-	struct delayed_work *dwork = (struct delayed_work *)__data;
+	struct delayed_work *dwork = from_timer(dwork, t, timer);
 
 	/* should have been called from irqsafe timer with irq already off */
 	__queue_work(dwork->cpu, dwork->wq, &dwork->work);
@@ -1508,8 +1509,7 @@ static void __queue_delayed_work(int cpu, struct workqueue_struct *wq,
 	struct work_struct *work = &dwork->work;
 
 	WARN_ON_ONCE(!wq);
-	WARN_ON_ONCE(timer->function != delayed_work_timer_fn ||
-		     timer->data != (unsigned long)dwork);
+	WARN_ON_ONCE(timer->function != (TIMER_FUNC_TYPE)delayed_work_timer_fn);
 	WARN_ON_ONCE(timer_pending(timer));
 	WARN_ON_ONCE(!list_empty(&work->entry));
 
@@ -1832,9 +1832,9 @@ static void destroy_worker(struct worker *worker)
 	wake_up_process(worker->task);
 }
 
-static void idle_worker_timeout(unsigned long __pool)
+static void idle_worker_timeout(struct timer_list *t)
 {
-	struct worker_pool *pool = (void *)__pool;
+	struct worker_pool *pool = from_timer(pool, t, idle_timer);
 
 	spin_lock_irq(&pool->lock);
 
@@ -1880,9 +1880,9 @@ static void send_mayday(struct work_struct *work)
 	}
 }
 
-static void pool_mayday_timeout(unsigned long __pool)
+static void pool_mayday_timeout(struct timer_list *t)
 {
-	struct worker_pool *pool = (void *)__pool;
+	struct worker_pool *pool = from_timer(pool, t, mayday_timer);
 	struct work_struct *work;
 
 	spin_lock_irq(&pool->lock);
@@ -1980,24 +1980,17 @@ static bool manage_workers(struct worker *worker)
 {
 	struct worker_pool *pool = worker->pool;
 
-	/*
-	 * Anyone who successfully grabs manager_arb wins the arbitration
-	 * and becomes the manager.  mutex_trylock() on pool->manager_arb
-	 * failure while holding pool->lock reliably indicates that someone
-	 * else is managing the pool and the worker which failed trylock
-	 * can proceed to executing work items.  This means that anyone
-	 * grabbing manager_arb is responsible for actually performing
-	 * manager duties.  If manager_arb is grabbed and released without
-	 * actual management, the pool may stall indefinitely.
-	 */
-	if (!mutex_trylock(&pool->manager_arb))
+	if (pool->flags & POOL_MANAGER_ACTIVE)
 		return false;
+
+	pool->flags |= POOL_MANAGER_ACTIVE;
 	pool->manager = worker;
 
 	maybe_create_worker(pool);
 
 	pool->manager = NULL;
-	mutex_unlock(&pool->manager_arb);
+	pool->flags &= ~POOL_MANAGER_ACTIVE;
+	wake_up(&wq_manager_wait);
 	return true;
 }
 
@@ -2497,15 +2490,8 @@ static void insert_wq_barrier(struct pool_workqueue *pwq,
 	INIT_WORK_ONSTACK(&barr->work, wq_barrier_func);
 	__set_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(&barr->work));
 
-	/*
-	 * Explicitly init the crosslock for wq_barrier::done, make its lock
-	 * key a subkey of the corresponding work. As a result we won't
-	 * build a dependency between wq_barrier::done and unrelated work.
-	 */
-	lockdep_init_map_crosslock((struct lockdep_map *)&barr->done.map,
-				   "(complete)wq_barr::done",
-				   target->lockdep_map.key, 1);
-	__init_completion(&barr->done);
+	init_completion_map(&barr->done, &target->lockdep_map);
+
 	barr->task = current;
 
 	/*
@@ -2611,16 +2597,13 @@ void flush_workqueue(struct workqueue_struct *wq)
 	struct wq_flusher this_flusher = {
 		.list = LIST_HEAD_INIT(this_flusher.list),
 		.flush_color = -1,
-		.done = COMPLETION_INITIALIZER_ONSTACK(this_flusher.done),
+		.done = COMPLETION_INITIALIZER_ONSTACK_MAP(this_flusher.done, wq->lockdep_map),
 	};
 	int next_color;
 
 	if (WARN_ON(!wq_online))
 		return;
 
-	lock_map_acquire(&wq->lockdep_map);
-	lock_map_release(&wq->lockdep_map);
-
 	mutex_lock(&wq->mutex);
 
 	/*
@@ -2883,9 +2866,6 @@ bool flush_work(struct work_struct *work)
 	if (WARN_ON(!wq_online))
 		return false;
 
-	lock_map_acquire(&work->lockdep_map);
-	lock_map_release(&work->lockdep_map);
-
 	if (start_flush_work(work, &barr)) {
 		wait_for_completion(&barr.done);
 		destroy_work_on_stack(&barr.work);
@@ -3242,13 +3222,10 @@ static int init_worker_pool(struct worker_pool *pool)
 	INIT_LIST_HEAD(&pool->idle_list);
 	hash_init(pool->busy_hash);
 
-	setup_deferrable_timer(&pool->idle_timer, idle_worker_timeout,
-			       (unsigned long)pool);
+	timer_setup(&pool->idle_timer, idle_worker_timeout, TIMER_DEFERRABLE);
 
-	setup_timer(&pool->mayday_timer, pool_mayday_timeout,
-		    (unsigned long)pool);
+	timer_setup(&pool->mayday_timer, pool_mayday_timeout, 0);
 
-	mutex_init(&pool->manager_arb);
 	mutex_init(&pool->attach_mutex);
 	INIT_LIST_HEAD(&pool->workers);
 
@@ -3318,13 +3295,15 @@ static void put_unbound_pool(struct worker_pool *pool)
 	hash_del(&pool->hash_node);
 
 	/*
-	 * Become the manager and destroy all workers.  Grabbing
-	 * manager_arb prevents @pool's workers from blocking on
-	 * attach_mutex.
+	 * Become the manager and destroy all workers.  This prevents
+	 * @pool's workers from blocking on attach_mutex.  We're the last
+	 * manager and @pool gets freed with the flag set.
 	 */
-	mutex_lock(&pool->manager_arb);
-
 	spin_lock_irq(&pool->lock);
+	wait_event_lock_irq(wq_manager_wait,
+			    !(pool->flags & POOL_MANAGER_ACTIVE), pool->lock);
+	pool->flags |= POOL_MANAGER_ACTIVE;
+
 	while ((worker = first_idle_worker(pool)))
 		destroy_worker(worker);
 	WARN_ON(pool->nr_workers || pool->nr_idle);
@@ -3338,8 +3317,6 @@ static void put_unbound_pool(struct worker_pool *pool)
 	if (pool->detach_completion)
 		wait_for_completion(pool->detach_completion);
 
-	mutex_unlock(&pool->manager_arb);
-
 	/* shut down the timers */
 	del_timer_sync(&pool->idle_timer);
 	del_timer_sync(&pool->mayday_timer);
@@ -4647,7 +4624,7 @@ static void rebind_workers(struct worker_pool *pool)
 		 * concurrency management.  Note that when or whether
 		 * @worker clears REBOUND doesn't affect correctness.
 		 *
-		 * ACCESS_ONCE() is necessary because @worker->flags may be
+		 * WRITE_ONCE() is necessary because @worker->flags may be
 		 * tested without holding any lock in
 		 * wq_worker_waking_up().  Without it, NOT_RUNNING test may
 		 * fail incorrectly leading to premature concurrency
@@ -4656,7 +4633,7 @@ static void rebind_workers(struct worker_pool *pool)
 		WARN_ON_ONCE(!(worker_flags & WORKER_UNBOUND));
 		worker_flags |= WORKER_REBOUND;
 		worker_flags &= ~WORKER_UNBOUND;
-		ACCESS_ONCE(worker->flags) = worker_flags;
+		WRITE_ONCE(worker->flags, worker_flags);
 	}
 
 	spin_unlock_irq(&pool->lock);
@@ -5390,11 +5367,8 @@ static void workqueue_sysfs_unregister(struct workqueue_struct *wq)	{ }
  */
 #ifdef CONFIG_WQ_WATCHDOG
 
-static void wq_watchdog_timer_fn(unsigned long data);
-
 static unsigned long wq_watchdog_thresh = 30;
-static struct timer_list wq_watchdog_timer =
-	TIMER_DEFERRED_INITIALIZER(wq_watchdog_timer_fn, 0, 0);
+static struct timer_list wq_watchdog_timer;
 
 static unsigned long wq_watchdog_touched = INITIAL_JIFFIES;
 static DEFINE_PER_CPU(unsigned long, wq_watchdog_touched_cpu) = INITIAL_JIFFIES;
@@ -5408,7 +5382,7 @@ static void wq_watchdog_reset_touched(void)
 		per_cpu(wq_watchdog_touched_cpu, cpu) = jiffies;
 }
 
-static void wq_watchdog_timer_fn(unsigned long data)
+static void wq_watchdog_timer_fn(struct timer_list *unused)
 {
 	unsigned long thresh = READ_ONCE(wq_watchdog_thresh) * HZ;
 	bool lockup_detected = false;
@@ -5510,6 +5484,7 @@ module_param_cb(watchdog_thresh, &wq_watchdog_thresh_ops, &wq_watchdog_thresh,
 
 static void wq_watchdog_init(void)
 {
+	timer_setup(&wq_watchdog_timer, wq_watchdog_timer_fn, TIMER_DEFERRABLE);
 	wq_watchdog_set_thresh(wq_watchdog_thresh);
 }
 
diff --git a/kernel/workqueue_internal.h b/kernel/workqueue_internal.h
index 8635417c587b..d390d1be3748 100644
--- a/kernel/workqueue_internal.h
+++ b/kernel/workqueue_internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * kernel/workqueue_internal.h
  *
@@ -9,6 +10,7 @@
 
 #include <linux/workqueue.h>
 #include <linux/kthread.h>
+#include <linux/preempt.h>
 
 struct worker_pool;
 
@@ -59,7 +61,7 @@ struct worker {
  */
 static inline struct worker *current_wq_worker(void)
 {
-	if (current->flags & PF_WQ_WORKER)
+	if (in_task() && (current->flags & PF_WQ_WORKER))
 		return kthread_data(current);
 	return NULL;
 }
diff --git a/lib/842/842.h b/lib/842/842.h
index e0a122bc1cdb..7b1f581a2907 100644
--- a/lib/842/842.h
+++ b/lib/842/842.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __842_H__
 #define __842_H__
diff --git a/lib/842/842_debugfs.h b/lib/842/842_debugfs.h
index e7f3bffaf255..277e403e8701 100644
--- a/lib/842/842_debugfs.h
+++ b/lib/842/842_debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __842_DEBUGFS_H__
 #define __842_DEBUGFS_H__
diff --git a/lib/Kconfig b/lib/Kconfig
index a85e6f76add5..b1445b22a6de 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -192,6 +192,9 @@ config CRC8
 	  when they need to do cyclic redundancy check according CRC8
 	  algorithm. Module will be called crc8.
 
+config XXHASH
+	tristate
+
 config AUDIT_GENERIC
 	bool
 	depends on AUDIT && !AUDIT_ARCH
@@ -246,6 +249,14 @@ config LZ4HC_COMPRESS
 config LZ4_DECOMPRESS
 	tristate
 
+config ZSTD_COMPRESS
+	select XXHASH
+	tristate
+
+config ZSTD_DECOMPRESS
+	select XXHASH
+	tristate
+
 source "lib/xz/Kconfig"
 
 #
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b19c491cbc4e..07ce7449765a 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -219,7 +219,8 @@ config FRAME_WARN
 	range 0 8192
 	default 0 if KASAN
 	default 2048 if GCC_PLUGIN_LATENT_ENTROPY
-	default 1024 if !64BIT
+	default 1280 if (!64BIT && PARISC)
+	default 1024 if (!64BIT && !PARISC)
 	default 2048 if 64BIT
 	help
 	  Tell gcc to warn at build time for stack frames larger than this.
@@ -375,7 +376,7 @@ config STACK_VALIDATION
 	  that runtime stack traces are more reliable.
 
 	  This is also a prerequisite for generation of ORC unwind data, which
-	  is needed for CONFIG_ORC_UNWINDER.
+	  is needed for CONFIG_UNWINDER_ORC.
 
 	  For more information, see
 	  tools/objtool/Documentation/stack-validation.txt.
@@ -1178,6 +1179,21 @@ config LOCKDEP_COMPLETIONS
 	 A deadlock caused by wait_for_completion() and complete() can be
 	 detected by lockdep using crossrelease feature.
 
+config BOOTPARAM_LOCKDEP_CROSSRELEASE_FULLSTACK
+	bool "Enable the boot parameter, crossrelease_fullstack"
+	depends on LOCKDEP_CROSSRELEASE
+	default n
+	help
+	 The lockdep "cross-release" feature needs to record stack traces
+	 (of calling functions) for all acquisitions, for eventual later
+	 use during analysis. By default only a single caller is recorded,
+	 because the unwind operation can be very expensive with deeper
+	 stack chains.
+
+	 However a boot parameter, crossrelease_fullstack, was
+	 introduced since sometimes deeper traces are required for full
+	 analysis. This option turns on the boot parameter.
+
 config DEBUG_LOCKDEP
 	bool "Lock dependency engine debugging"
 	depends on DEBUG_KERNEL && LOCKDEP
@@ -1589,6 +1605,54 @@ config LATENCYTOP
 
 source kernel/trace/Kconfig
 
+config PROVIDE_OHCI1394_DMA_INIT
+	bool "Remote debugging over FireWire early on boot"
+	depends on PCI && X86
+	help
+	  If you want to debug problems which hang or crash the kernel early
+	  on boot and the crashing machine has a FireWire port, you can use
+	  this feature to remotely access the memory of the crashed machine
+	  over FireWire. This employs remote DMA as part of the OHCI1394
+	  specification which is now the standard for FireWire controllers.
+
+	  With remote DMA, you can monitor the printk buffer remotely using
+	  firescope and access all memory below 4GB using fireproxy from gdb.
+	  Even controlling a kernel debugger is possible using remote DMA.
+
+	  Usage:
+
+	  If ohci1394_dma=early is used as boot parameter, it will initialize
+	  all OHCI1394 controllers which are found in the PCI config space.
+
+	  As all changes to the FireWire bus such as enabling and disabling
+	  devices cause a bus reset and thereby disable remote DMA for all
+	  devices, be sure to have the cable plugged and FireWire enabled on
+	  the debugging host before booting the debug target for debugging.
+
+	  This code (~1k) is freed after boot. By then, the firewire stack
+	  in charge of the OHCI-1394 controllers should be used instead.
+
+	  See Documentation/debugging-via-ohci1394.txt for more information.
+
+config DMA_API_DEBUG
+	bool "Enable debugging of DMA-API usage"
+	depends on HAVE_DMA_API_DEBUG
+	help
+	  Enable this option to debug the use of the DMA API by device drivers.
+	  With this option you will be able to detect common bugs in device
+	  drivers like double-freeing of DMA mappings or freeing mappings that
+	  were never allocated.
+
+	  This also attempts to catch cases where a page owned by DMA is
+	  accessed by the cpu in a way that could cause data corruption.  For
+	  example, this enables cow_user_page() to check that the source page is
+	  not undergoing DMA.
+
+	  This option causes a performance degradation.  Use only if you want to
+	  debug device drivers and dma interactions.
+
+	  If unsure, say N.
+
 menu "Runtime Testing"
 
 config LKDTM
@@ -1748,56 +1812,6 @@ config TEST_PARMAN
 
 	  If unsure, say N.
 
-endmenu # runtime tests
-
-config PROVIDE_OHCI1394_DMA_INIT
-	bool "Remote debugging over FireWire early on boot"
-	depends on PCI && X86
-	help
-	  If you want to debug problems which hang or crash the kernel early
-	  on boot and the crashing machine has a FireWire port, you can use
-	  this feature to remotely access the memory of the crashed machine
-	  over FireWire. This employs remote DMA as part of the OHCI1394
-	  specification which is now the standard for FireWire controllers.
-
-	  With remote DMA, you can monitor the printk buffer remotely using
-	  firescope and access all memory below 4GB using fireproxy from gdb.
-	  Even controlling a kernel debugger is possible using remote DMA.
-
-	  Usage:
-
-	  If ohci1394_dma=early is used as boot parameter, it will initialize
-	  all OHCI1394 controllers which are found in the PCI config space.
-
-	  As all changes to the FireWire bus such as enabling and disabling
-	  devices cause a bus reset and thereby disable remote DMA for all
-	  devices, be sure to have the cable plugged and FireWire enabled on
-	  the debugging host before booting the debug target for debugging.
-
-	  This code (~1k) is freed after boot. By then, the firewire stack
-	  in charge of the OHCI-1394 controllers should be used instead.
-
-	  See Documentation/debugging-via-ohci1394.txt for more information.
-
-config DMA_API_DEBUG
-	bool "Enable debugging of DMA-API usage"
-	depends on HAVE_DMA_API_DEBUG
-	help
-	  Enable this option to debug the use of the DMA API by device drivers.
-	  With this option you will be able to detect common bugs in device
-	  drivers like double-freeing of DMA mappings or freeing mappings that
-	  were never allocated.
-
-	  This also attempts to catch cases where a page owned by DMA is
-	  accessed by the cpu in a way that could cause data corruption.  For
-	  example, this enables cow_user_page() to check that the source page is
-	  not undergoing DMA.
-
-	  This option causes a performance degradation.  Use only if you want to
-	  debug device drivers and dma interactions.
-
-	  If unsure, say N.
-
 config TEST_LKM
 	tristate "Test module loading with 'hello world' module"
 	default n
@@ -1872,18 +1886,6 @@ config TEST_UDELAY
 
 	  If unsure, say N.
 
-config MEMTEST
-	bool "Memtest"
-	depends on HAVE_MEMBLOCK
-	---help---
-	  This option adds a kernel parameter 'memtest', which allows memtest
-	  to be set.
-	        memtest=0, mean disabled; -- default
-	        memtest=1, mean do 1 test pattern;
-	        ...
-	        memtest=17, mean do 17 test patterns.
-	  If you are unsure how to answer this question, answer N.
-
 config TEST_STATIC_KEYS
 	tristate "Test static keys"
 	default n
@@ -1893,16 +1895,6 @@ config TEST_STATIC_KEYS
 
 	  If unsure, say N.
 
-config BUG_ON_DATA_CORRUPTION
-	bool "Trigger a BUG when data corruption is detected"
-	select DEBUG_LIST
-	help
-	  Select this option if the kernel should BUG when it encounters
-	  data corruption in kernel memory structures when they get checked
-	  for validity.
-
-	  If unsure, say N.
-
 config TEST_KMOD
 	tristate "kmod stress tester"
 	default n
@@ -1940,6 +1932,29 @@ config TEST_DEBUG_VIRTUAL
 
 	  If unsure, say N.
 
+endmenu # runtime tests
+
+config MEMTEST
+	bool "Memtest"
+	depends on HAVE_MEMBLOCK
+	---help---
+	  This option adds a kernel parameter 'memtest', which allows memtest
+	  to be set.
+	        memtest=0, mean disabled; -- default
+	        memtest=1, mean do 1 test pattern;
+	        ...
+	        memtest=17, mean do 17 test patterns.
+	  If you are unsure how to answer this question, answer N.
+
+config BUG_ON_DATA_CORRUPTION
+	bool "Trigger a BUG when data corruption is detected"
+	select DEBUG_LIST
+	help
+	  Select this option if the kernel should BUG when it encounters
+	  data corruption in kernel memory structures when they get checked
+	  for validity.
+
+	  If unsure, say N.
 
 source "samples/Kconfig"
 
diff --git a/lib/Makefile b/lib/Makefile
index 469ce5e24e4f..b8f2c16fccaa 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for some libs needed in the kernel.
 #
@@ -103,6 +104,7 @@ obj-$(CONFIG_CRC4)	+= crc4.o
 obj-$(CONFIG_CRC7)	+= crc7.o
 obj-$(CONFIG_LIBCRC32C)	+= libcrc32c.o
 obj-$(CONFIG_CRC8)	+= crc8.o
+obj-$(CONFIG_XXHASH)	+= xxhash.o
 obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o
 
 obj-$(CONFIG_842_COMPRESS) += 842/
@@ -116,6 +118,8 @@ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
 obj-$(CONFIG_LZ4_COMPRESS) += lz4/
 obj-$(CONFIG_LZ4HC_COMPRESS) += lz4/
 obj-$(CONFIG_LZ4_DECOMPRESS) += lz4/
+obj-$(CONFIG_ZSTD_COMPRESS) += zstd/
+obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd/
 obj-$(CONFIG_XZ_DEC) += xz/
 obj-$(CONFIG_RAID6_PQ) += raid6/
 
diff --git a/lib/argv_split.c b/lib/argv_split.c
index e927ed0e18a8..5c35752a9414 100644
--- a/lib/argv_split.c
+++ b/lib/argv_split.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Helper function for splitting a string into an argv-like array.
  */
diff --git a/lib/asn1_decoder.c b/lib/asn1_decoder.c
index 0bd8a611eb83..1ef0cec38d78 100644
--- a/lib/asn1_decoder.c
+++ b/lib/asn1_decoder.c
@@ -228,7 +228,7 @@ next_op:
 		hdr = 2;
 
 		/* Extract a tag from the data */
-		if (unlikely(dp >= datalen - 1))
+		if (unlikely(datalen - dp < 2))
 			goto data_overrun_error;
 		tag = data[dp++];
 		if (unlikely((tag & 0x1f) == ASN1_LONG_TAG))
@@ -274,7 +274,7 @@ next_op:
 				int n = len - 0x80;
 				if (unlikely(n > 2))
 					goto length_too_long;
-				if (unlikely(dp >= datalen - n))
+				if (unlikely(n > datalen - dp))
 					goto data_overrun_error;
 				hdr += n;
 				for (len = 0; n > 0; n--) {
@@ -284,6 +284,9 @@ next_op:
 				if (unlikely(len > datalen - dp))
 					goto data_overrun_error;
 			}
+		} else {
+			if (unlikely(len > datalen - dp))
+				goto data_overrun_error;
 		}
 
 		if (flags & FLAG_CONS) {
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index 155c55d8db5f..b77d51da8c73 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -39,7 +39,7 @@ begin_node:
 		/* Descend through a shortcut */
 		shortcut = assoc_array_ptr_to_shortcut(cursor);
 		smp_read_barrier_depends();
-		cursor = ACCESS_ONCE(shortcut->next_node);
+		cursor = READ_ONCE(shortcut->next_node);
 	}
 
 	node = assoc_array_ptr_to_node(cursor);
@@ -55,7 +55,7 @@ begin_node:
 	 */
 	has_meta = 0;
 	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
-		ptr = ACCESS_ONCE(node->slots[slot]);
+		ptr = READ_ONCE(node->slots[slot]);
 		has_meta |= (unsigned long)ptr;
 		if (ptr && assoc_array_ptr_is_leaf(ptr)) {
 			/* We need a barrier between the read of the pointer
@@ -89,7 +89,7 @@ continue_node:
 	smp_read_barrier_depends();
 
 	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
-		ptr = ACCESS_ONCE(node->slots[slot]);
+		ptr = READ_ONCE(node->slots[slot]);
 		if (assoc_array_ptr_is_meta(ptr)) {
 			cursor = ptr;
 			goto begin_node;
@@ -98,7 +98,7 @@ continue_node:
 
 finished_node:
 	/* Move up to the parent (may need to skip back over a shortcut) */
-	parent = ACCESS_ONCE(node->back_pointer);
+	parent = READ_ONCE(node->back_pointer);
 	slot = node->parent_slot;
 	if (parent == stop)
 		return 0;
@@ -107,7 +107,7 @@ finished_node:
 		shortcut = assoc_array_ptr_to_shortcut(parent);
 		smp_read_barrier_depends();
 		cursor = parent;
-		parent = ACCESS_ONCE(shortcut->back_pointer);
+		parent = READ_ONCE(shortcut->back_pointer);
 		slot = shortcut->parent_slot;
 		if (parent == stop)
 			return 0;
@@ -147,7 +147,7 @@ int assoc_array_iterate(const struct assoc_array *array,
 					void *iterator_data),
 			void *iterator_data)
 {
-	struct assoc_array_ptr *root = ACCESS_ONCE(array->root);
+	struct assoc_array_ptr *root = READ_ONCE(array->root);
 
 	if (!root)
 		return 0;
@@ -194,7 +194,7 @@ assoc_array_walk(const struct assoc_array *array,
 
 	pr_devel("-->%s()\n", __func__);
 
-	cursor = ACCESS_ONCE(array->root);
+	cursor = READ_ONCE(array->root);
 	if (!cursor)
 		return assoc_array_walk_tree_empty;
 
@@ -220,7 +220,7 @@ consider_node:
 
 	slot = segments >> (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
 	slot &= ASSOC_ARRAY_FAN_MASK;
-	ptr = ACCESS_ONCE(node->slots[slot]);
+	ptr = READ_ONCE(node->slots[slot]);
 
 	pr_devel("consider slot %x [ix=%d type=%lu]\n",
 		 slot, level, (unsigned long)ptr & 3);
@@ -294,7 +294,7 @@ follow_shortcut:
 	} while (sc_level < shortcut->skip_to_level);
 
 	/* The shortcut matches the leaf's index to this point. */
-	cursor = ACCESS_ONCE(shortcut->next_node);
+	cursor = READ_ONCE(shortcut->next_node);
 	if (((level ^ sc_level) & ~ASSOC_ARRAY_KEY_CHUNK_MASK) != 0) {
 		level = sc_level;
 		goto jumped;
@@ -337,7 +337,7 @@ void *assoc_array_find(const struct assoc_array *array,
 	 * the terminal node.
 	 */
 	for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
-		ptr = ACCESS_ONCE(node->slots[slot]);
+		ptr = READ_ONCE(node->slots[slot]);
 		if (ptr && assoc_array_ptr_is_leaf(ptr)) {
 			/* We need a barrier between the read of the pointer
 			 * and dereferencing the pointer - but only if we are
@@ -598,21 +598,31 @@ static bool assoc_array_insert_into_terminal_node(struct assoc_array_edit *edit,
 		if ((edit->segment_cache[ASSOC_ARRAY_FAN_OUT] ^ base_seg) == 0)
 			goto all_leaves_cluster_together;
 
-		/* Otherwise we can just insert a new node ahead of the old
-		 * one.
+		/* Otherwise all the old leaves cluster in the same slot, but
+		 * the new leaf wants to go into a different slot - so we
+		 * create a new node (n0) to hold the new leaf and a pointer to
+		 * a new node (n1) holding all the old leaves.
+		 *
+		 * This can be done by falling through to the node splitting
+		 * path.
 		 */
-		goto present_leaves_cluster_but_not_new_leaf;
+		pr_devel("present leaves cluster but not new leaf\n");
 	}
 
 split_node:
 	pr_devel("split node\n");
 
-	/* We need to split the current node; we know that the node doesn't
-	 * simply contain a full set of leaves that cluster together (it
-	 * contains meta pointers and/or non-clustering leaves).
+	/* We need to split the current node.  The node must contain anything
+	 * from a single leaf (in the one leaf case, this leaf will cluster
+	 * with the new leaf) and the rest meta-pointers, to all leaves, some
+	 * of which may cluster.
+	 *
+	 * It won't contain the case in which all the current leaves plus the
+	 * new leaves want to cluster in the same slot.
 	 *
 	 * We need to expel at least two leaves out of a set consisting of the
-	 * leaves in the node and the new leaf.
+	 * leaves in the node and the new leaf.  The current meta pointers can
+	 * just be copied as they shouldn't cluster with any of the leaves.
 	 *
 	 * We need a new node (n0) to replace the current one and a new node to
 	 * take the expelled nodes (n1).
@@ -717,33 +727,6 @@ found_slot_for_multiple_occupancy:
 	pr_devel("<--%s() = ok [split node]\n", __func__);
 	return true;
 
-present_leaves_cluster_but_not_new_leaf:
-	/* All the old leaves cluster in the same slot, but the new leaf wants
-	 * to go into a different slot, so we create a new node to hold the new
-	 * leaf and a pointer to a new node holding all the old leaves.
-	 */
-	pr_devel("present leaves cluster but not new leaf\n");
-
-	new_n0->back_pointer = node->back_pointer;
-	new_n0->parent_slot = node->parent_slot;
-	new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
-	new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
-	new_n1->parent_slot = edit->segment_cache[0];
-	new_n1->nr_leaves_on_branch = node->nr_leaves_on_branch;
-	edit->adjust_count_on = new_n0;
-
-	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
-		new_n1->slots[i] = node->slots[i];
-
-	new_n0->slots[edit->segment_cache[0]] = assoc_array_node_to_ptr(new_n0);
-	edit->leaf_p = &new_n0->slots[edit->segment_cache[ASSOC_ARRAY_FAN_OUT]];
-
-	edit->set[0].ptr = &assoc_array_ptr_to_node(node->back_pointer)->slots[node->parent_slot];
-	edit->set[0].to = assoc_array_node_to_ptr(new_n0);
-	edit->excised_meta[0] = assoc_array_node_to_ptr(node);
-	pr_devel("<--%s() = ok [insert node before]\n", __func__);
-	return true;
-
 all_leaves_cluster_together:
 	/* All the leaves, new and old, want to cluster together in this node
 	 * in the same slot, so we have to replace this node with a shortcut to
diff --git a/lib/audit.c b/lib/audit.c
index b8fb5ee81e26..5004bff928a7 100644
--- a/lib/audit.c
+++ b/lib/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/audit.h>
diff --git a/lib/bcd.c b/lib/bcd.c
index 40d304efe272..7e4750b6e801 100644
--- a/lib/bcd.c
+++ b/lib/bcd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bcd.h>
 #include <linux/export.h>
 
diff --git a/lib/bitmap.c b/lib/bitmap.c
index c82c61b66e16..d8f0c094b18e 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -18,7 +18,9 @@
 
 #include <asm/page.h>
 
-/*
+/**
+ * DOC: bitmap introduction
+ *
  * bitmaps provide an array of bits, implemented using an an
  * array of unsigned longs.  The number of valid bits in a
  * given bitmap does _not_ need to be an exact multiple of
diff --git a/lib/bug.c b/lib/bug.c
index a6a1137d06db..1e094408c893 100644
--- a/lib/bug.c
+++ b/lib/bug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
   Generic support for BUG()
 
diff --git a/lib/bust_spinlocks.c b/lib/bust_spinlocks.c
index f8e0e5367398..ab719495e2cb 100644
--- a/lib/bust_spinlocks.c
+++ b/lib/bust_spinlocks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * lib/bust_spinlocks.c
  *
diff --git a/lib/check_signature.c b/lib/check_signature.c
index 6b49797980c4..43a7301da7ab 100644
--- a/lib/check_signature.c
+++ b/lib/check_signature.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/io.h>
 #include <linux/export.h>
 
diff --git a/lib/clz_tab.c b/lib/clz_tab.c
index 7287b4a991a7..b6118d09f244 100644
--- a/lib/clz_tab.c
+++ b/lib/clz_tab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 const unsigned char __clz_tab[] = {
 	0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
 	    5, 5, 5, 5, 5, 5, 5, 5,
diff --git a/lib/compat_audit.c b/lib/compat_audit.c
index 873f75b640ab..77eabad69b4a 100644
--- a/lib/compat_audit.c
+++ b/lib/compat_audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/types.h>
 #include <asm/unistd32.h>
diff --git a/lib/cpumask.c b/lib/cpumask.c
index 8b1a1bd77539..35fe142ebb5e 100644
--- a/lib/cpumask.c
+++ b/lib/cpumask.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/bitops.h>
diff --git a/lib/crc32.c b/lib/crc32.c
index 6ddc92bc1460..2ef20fe84b69 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -225,7 +225,7 @@ static u32 __attribute_const__ gf2_multiply(u32 x, u32 y, u32 modulus)
 }
 
 /**
- * crc32_generic_shift - Append len 0 bytes to crc, in logarithmic time
+ * crc32_generic_shift - Append @len 0 bytes to crc, in logarithmic time
  * @crc: The original little-endian CRC (i.e. lsbit is x^31 coefficient)
  * @len: The number of bytes. @crc is multiplied by x^(8*@len)
  * @polynomial: The modulus used to reduce the result to 32 bits.
diff --git a/lib/crc32defs.h b/lib/crc32defs.h
index 64cba2c3c700..cb275a28a750 100644
--- a/lib/crc32defs.h
+++ b/lib/crc32defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * There are multiple 16-bit CRC polynomials in common use, but this is
  * *the* standard CRC-32 polynomial, first popularized by Ethernet.
diff --git a/lib/crc4.c b/lib/crc4.c
index cf6db46661be..164ed9444cd3 100644
--- a/lib/crc4.c
+++ b/lib/crc4.c
@@ -15,7 +15,7 @@ static const uint8_t crc4_tab[] = {
 
 /**
  * crc4 - calculate the 4-bit crc of a value.
- * @crc:  starting crc4
+ * @c:    starting crc4
  * @x:    value to checksum
  * @bits: number of bits in @x to checksum
  *
diff --git a/lib/crc8.c b/lib/crc8.c
index 87b59cafdb83..595a5a75e3cd 100644
--- a/lib/crc8.c
+++ b/lib/crc8.c
@@ -20,11 +20,11 @@
 #include <linux/crc8.h>
 #include <linux/printk.h>
 
-/*
+/**
  * crc8_populate_msb - fill crc table for given polynomial in reverse bit order.
  *
- * table:	table to be filled.
- * polynomial:	polynomial for which table is to be filled.
+ * @table:	table to be filled.
+ * @polynomial:	polynomial for which table is to be filled.
  */
 void crc8_populate_msb(u8 table[CRC8_TABLE_SIZE], u8 polynomial)
 {
@@ -42,11 +42,11 @@ void crc8_populate_msb(u8 table[CRC8_TABLE_SIZE], u8 polynomial)
 }
 EXPORT_SYMBOL(crc8_populate_msb);
 
-/*
+/**
  * crc8_populate_lsb - fill crc table for given polynomial in regular bit order.
  *
- * table:	table to be filled.
- * polynomial:	polynomial for which table is to be filled.
+ * @table:	table to be filled.
+ * @polynomial:	polynomial for which table is to be filled.
  */
 void crc8_populate_lsb(u8 table[CRC8_TABLE_SIZE], u8 polynomial)
 {
@@ -63,13 +63,13 @@ void crc8_populate_lsb(u8 table[CRC8_TABLE_SIZE], u8 polynomial)
 }
 EXPORT_SYMBOL(crc8_populate_lsb);
 
-/*
+/**
  * crc8 - calculate a crc8 over the given input data.
  *
- * table: crc table used for calculation.
- * pdata: pointer to data buffer.
- * nbytes: number of bytes in data buffer.
- * crc:	previous returned crc8 value.
+ * @table: crc table used for calculation.
+ * @pdata: pointer to data buffer.
+ * @nbytes: number of bytes in data buffer.
+ * @crc: previous returned crc8 value.
  */
 u8 crc8(const u8 table[CRC8_TABLE_SIZE], u8 *pdata, size_t nbytes, u8 crc)
 {
diff --git a/lib/ctype.c b/lib/ctype.c
index c646df91a2f7..c819fe269eb2 100644
--- a/lib/ctype.c
+++ b/lib/ctype.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/lib/ctype.c
  *
diff --git a/lib/debug_info.c b/lib/debug_info.c
index 2edbe27517ed..36daf753293c 100644
--- a/lib/debug_info.c
+++ b/lib/debug_info.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file exists solely to ensure debug information for some core
  * data structures is included in the final image even for
diff --git a/lib/dec_and_lock.c b/lib/dec_and_lock.c
index e26278576b31..347fa7ac2e8a 100644
--- a/lib/dec_and_lock.c
+++ b/lib/dec_and_lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/spinlock.h>
 #include <linux/atomic.h>
diff --git a/lib/decompress.c b/lib/decompress.c
index 62696dff5730..857ab1af1ef3 100644
--- a/lib/decompress.c
+++ b/lib/decompress.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * decompress.c
  *
diff --git a/lib/decompress_inflate.c b/lib/decompress_inflate.c
index 555c06bf20da..63b4b7eee138 100644
--- a/lib/decompress_inflate.c
+++ b/lib/decompress_inflate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifdef STATIC
 #define PREBOOT
 /* Pre-boot environment: included */
diff --git a/lib/devres.c b/lib/devres.c
index 78eca713b1d9..5f2aedd58bc5 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/pci.h>
 #include <linux/io.h>
diff --git a/lib/digsig.c b/lib/digsig.c
index 03d7c63837ae..6ba6fcd92dd1 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -87,6 +87,12 @@ static int digsig_verify_rsa(struct key *key,
 	down_read(&key->sem);
 	ukp = user_key_payload_locked(key);
 
+	if (!ukp) {
+		/* key was revoked before we acquired its semaphore */
+		err = -EKEYREVOKED;
+		goto err1;
+	}
+
 	if (ukp->datalen < sizeof(*pkh))
 		goto err1;
 
diff --git a/lib/div64.c b/lib/div64.c
index 7f345259c32f..01c8602bb6ff 100644
--- a/lib/div64.c
+++ b/lib/div64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com>
  *
@@ -60,6 +61,12 @@ uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
 EXPORT_SYMBOL(__div64_32);
 #endif
 
+/**
+ * div_s64_rem - signed 64bit divide with 64bit divisor and remainder
+ * @dividend:	64bit dividend
+ * @divisor:	64bit divisor
+ * @remainder:  64bit remainder
+ */
 #ifndef div_s64_rem
 s64 div_s64_rem(s64 dividend, s32 divisor, s32 *remainder)
 {
diff --git a/lib/dma-noop.c b/lib/dma-noop.c
index acc4190e2731..a10185b0c2d4 100644
--- a/lib/dma-noop.c
+++ b/lib/dma-noop.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	lib/dma-noop.c
  *
diff --git a/lib/dma-virt.c b/lib/dma-virt.c
index 5c4f11329721..8e61a02ef9ca 100644
--- a/lib/dma-virt.c
+++ b/lib/dma-virt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	lib/dma-virt.c
  *
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
index 625375e7f11f..c5edbedd364d 100644
--- a/lib/dump_stack.c
+++ b/lib/dump_stack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Provide a default dump_stack() function for architectures
  * which don't implement their own.
diff --git a/lib/dynamic_queue_limits.c b/lib/dynamic_queue_limits.c
index f346715e2255..da4672a50a54 100644
--- a/lib/dynamic_queue_limits.c
+++ b/lib/dynamic_queue_limits.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Dynamic byte queue limits.  See include/linux/dynamic_queue_limits.h
  *
@@ -20,7 +21,7 @@ void dql_completed(struct dql *dql, unsigned int count)
 	unsigned int ovlimit, completed, num_queued;
 	bool all_prev_completed;
 
-	num_queued = ACCESS_ONCE(dql->num_queued);
+	num_queued = READ_ONCE(dql->num_queued);
 
 	/* Can't complete more than what's in queue */
 	BUG_ON(count > num_queued - dql->num_completed);
diff --git a/lib/errseq.c b/lib/errseq.c
index 7b900c2a277a..79cc66897db4 100644
--- a/lib/errseq.c
+++ b/lib/errseq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/bug.h>
 #include <linux/atomic.h>
diff --git a/lib/flex_proportions.c b/lib/flex_proportions.c
index 2cc1f94e03a1..7852bfff50b1 100644
--- a/lib/flex_proportions.c
+++ b/lib/flex_proportions.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Floating proportions with flexible aging period
  *
diff --git a/lib/fonts/Makefile b/lib/fonts/Makefile
index e04d010cfbf5..d56f02dea83a 100644
--- a/lib/fonts/Makefile
+++ b/lib/fonts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Font handling
 
 font-objs := fonts.o
diff --git a/lib/fonts/font_10x18.c b/lib/fonts/font_10x18.c
index 6be72bb218ee..532f0ff89a96 100644
--- a/lib/fonts/font_10x18.c
+++ b/lib/fonts/font_10x18.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /********************************
  * adapted from font_sun12x22.c *
  * by Jurriaan Kalkman 06-2005  *
diff --git a/lib/fonts/font_6x10.c b/lib/fonts/font_6x10.c
index b20620904d31..09b2cc03435b 100644
--- a/lib/fonts/font_6x10.c
+++ b/lib/fonts/font_6x10.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/font.h>
 
 static const unsigned char fontdata_6x10[] = {
diff --git a/lib/fonts/font_6x11.c b/lib/fonts/font_6x11.c
index 46e86e67aa6a..d7136c33f1f0 100644
--- a/lib/fonts/font_6x11.c
+++ b/lib/fonts/font_6x11.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**********************************************/
 /*                                            */
 /*       Font file generated by rthelen       */
diff --git a/lib/fonts/font_7x14.c b/lib/fonts/font_7x14.c
index 3b7dbf9c060b..9ae5b62c8a0d 100644
--- a/lib/fonts/font_7x14.c
+++ b/lib/fonts/font_7x14.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**************************************/
 /* this file adapted from font_8x16.c */
 /* by Jurriaan Kalkman 05-2005        */
diff --git a/lib/fonts/font_8x16.c b/lib/fonts/font_8x16.c
index 00a0c67a5c7d..34292cdfaa23 100644
--- a/lib/fonts/font_8x16.c
+++ b/lib/fonts/font_8x16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**********************************************/
 /*                                            */
 /*       Font file generated by cpi2fnt       */
diff --git a/lib/fonts/font_8x8.c b/lib/fonts/font_8x8.c
index 9f56efe2cee7..751becf3c521 100644
--- a/lib/fonts/font_8x8.c
+++ b/lib/fonts/font_8x8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**********************************************/
 /*                                            */
 /*       Font file generated by cpi2fnt       */
diff --git a/lib/fonts/font_acorn_8x8.c b/lib/fonts/font_acorn_8x8.c
index 639e31ae1100..0ff0e85d4481 100644
--- a/lib/fonts/font_acorn_8x8.c
+++ b/lib/fonts/font_acorn_8x8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Acorn-like font definition, with PC graphics characters */
 
 #include <linux/font.h>
diff --git a/lib/fonts/font_pearl_8x8.c b/lib/fonts/font_pearl_8x8.c
index dc6ad539ca4e..b0514c0a7445 100644
--- a/lib/fonts/font_pearl_8x8.c
+++ b/lib/fonts/font_pearl_8x8.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**********************************************/
 /*                                            */
 /*       Font file generated by cpi2fnt       */
diff --git a/lib/fonts/font_sun12x22.c b/lib/fonts/font_sun12x22.c
index d3643853c33a..955d6eee3959 100644
--- a/lib/fonts/font_sun12x22.c
+++ b/lib/fonts/font_sun12x22.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/font.h>
 
 #define FONTDATAMAX 11264
diff --git a/lib/fonts/font_sun8x16.c b/lib/fonts/font_sun8x16.c
index 268151325b83..03d71e53954a 100644
--- a/lib/fonts/font_sun8x16.c
+++ b/lib/fonts/font_sun8x16.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/font.h>
 
 #define FONTDATAMAX 4096
diff --git a/lib/gcd.c b/lib/gcd.c
index 135ee6407a5e..227dea924425 100644
--- a/lib/gcd.c
+++ b/lib/gcd.c
@@ -13,6 +13,12 @@
 #if !defined(CONFIG_CPU_NO_EFFICIENT_FFS) && !defined(CPU_NO_EFFICIENT_FFS)
 
 /* If __ffs is available, the even/odd algorithm benchmarks slower. */
+
+/**
+ * gcd - calculate and return the greatest common divisor of 2 unsigned longs
+ * @a: first value
+ * @b: second value
+ */
 unsigned long gcd(unsigned long a, unsigned long b)
 {
 	unsigned long r = a | b;
diff --git a/lib/gen_crc32table.c b/lib/gen_crc32table.c
index d83a372fa76f..8f26660ea10a 100644
--- a/lib/gen_crc32table.c
+++ b/lib/gen_crc32table.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include "../include/generated/autoconf.h"
 #include "crc32defs.h"
diff --git a/lib/hweight.c b/lib/hweight.c
index 43273a7d83cf..7660d88fd496 100644
--- a/lib/hweight.c
+++ b/lib/hweight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/bitops.h>
 #include <asm/types.h>
diff --git a/lib/idr.c b/lib/idr.c
index 082778cf883e..edd9b2be1651 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -146,12 +146,12 @@ EXPORT_SYMBOL(idr_get_next_ext);
  * idr_alloc() and idr_remove() (as long as the ID being removed is not
  * the one being replaced!).
  *
- * Returns: 0 on success.  %-ENOENT indicates that @id was not found.
- * %-EINVAL indicates that @id or @ptr were not valid.
+ * Returns: the old value on success.  %-ENOENT indicates that @id was not
+ * found.  %-EINVAL indicates that @id or @ptr were not valid.
  */
 void *idr_replace(struct idr *idr, void *ptr, int id)
 {
-	if (WARN_ON_ONCE(id < 0))
+	if (id < 0)
 		return ERR_PTR(-EINVAL);
 
 	return idr_replace_ext(idr, ptr, id);
diff --git a/lib/inflate.c b/lib/inflate.c
index 013a76193481..fbaf03c1748d 100644
--- a/lib/inflate.c
+++ b/lib/inflate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define DEBG(x)
 #define DEBG1(x)
 /* inflate.c -- Not copyrighted 1992 by Mark Adler
diff --git a/lib/int_sqrt.c b/lib/int_sqrt.c
index 1ef4cc344977..db0b5aa071fc 100644
--- a/lib/int_sqrt.c
+++ b/lib/int_sqrt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013 Davidlohr Bueso <davidlohr.bueso@hp.com>
  *
diff --git a/lib/iomap.c b/lib/iomap.c
index fc3dcb4b238e..541d926da95e 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implement the default iomap interfaces
  *
diff --git a/lib/iommu-common.c b/lib/iommu-common.c
index 858dc1aae478..55b00de106b5 100644
--- a/lib/iommu-common.c
+++ b/lib/iommu-common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IOMMU mmap management and range allocation functions.
  * Based almost entirely upon the powerpc iommu allocator.
diff --git a/lib/iommu-helper.c b/lib/iommu-helper.c
index a816f3a80625..23633c0fda4a 100644
--- a/lib/iommu-helper.c
+++ b/lib/iommu-helper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IOMMU helper functions for the free area management
  */
diff --git a/lib/ioremap.c b/lib/ioremap.c
index 4bb30206b942..b808a390e4c3 100644
--- a/lib/ioremap.c
+++ b/lib/ioremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Re-map IO memory to kernel address space so that we can access it.
  * This is needed for high PCI addresses that aren't mapped in the
@@ -161,6 +162,7 @@ int ioremap_page_range(unsigned long addr,
 	unsigned long next;
 	int err;
 
+	might_sleep();
 	BUG_ON(addr >= end);
 
 	start = addr;
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 52c8dd6d8e82..1c1c06ddc20a 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -687,8 +687,10 @@ EXPORT_SYMBOL(_copy_from_iter_full_nocache);
 
 static inline bool page_copy_sane(struct page *page, size_t offset, size_t n)
 {
-	size_t v = n + offset;
-	if (likely(n <= v && v <= (PAGE_SIZE << compound_order(page))))
+	struct page *head = compound_head(page);
+	size_t v = n + offset + page_address(page) - page_address(head);
+
+	if (likely(n <= v && v <= (PAGE_SIZE << compound_order(head))))
 		return true;
 	WARN_ON(1);
 	return false;
diff --git a/lib/irq_poll.c b/lib/irq_poll.c
index 1d6565e81030..86a709954f5a 100644
--- a/lib/irq_poll.c
+++ b/lib/irq_poll.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Functions related to interrupt-poll handling in the block layer. This
  * is similar to NAPI for network devices.
diff --git a/lib/kasprintf.c b/lib/kasprintf.c
index 7f6c506a4942..bacf7b83ccf0 100644
--- a/lib/kasprintf.c
+++ b/lib/kasprintf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/lib/kasprintf.c
  *
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index e590523ea476..f237a09a5862 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -294,6 +294,26 @@ static void cleanup_uevent_env(struct subprocess_info *info)
 }
 #endif
 
+static void zap_modalias_env(struct kobj_uevent_env *env)
+{
+	static const char modalias_prefix[] = "MODALIAS=";
+	int i;
+
+	for (i = 0; i < env->envp_idx;) {
+		if (strncmp(env->envp[i], modalias_prefix,
+			    sizeof(modalias_prefix) - 1)) {
+			i++;
+			continue;
+		}
+
+		if (i != env->envp_idx - 1)
+			memmove(&env->envp[i], &env->envp[i + 1],
+				sizeof(env->envp[i]) * env->envp_idx - 1);
+
+		env->envp_idx--;
+	}
+}
+
 /**
  * kobject_uevent_env - send an uevent with environmental data
  *
@@ -409,16 +429,29 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 		}
 	}
 
-	/*
-	 * Mark "add" and "remove" events in the object to ensure proper
-	 * events to userspace during automatic cleanup. If the object did
-	 * send an "add" event, "remove" will automatically generated by
-	 * the core, if not already done by the caller.
-	 */
-	if (action == KOBJ_ADD)
+	switch (action) {
+	case KOBJ_ADD:
+		/*
+		 * Mark "add" event so we can make sure we deliver "remove"
+		 * event to userspace during automatic cleanup. If
+		 * the object did send an "add" event, "remove" will
+		 * automatically generated by the core, if not already done
+		 * by the caller.
+		 */
 		kobj->state_add_uevent_sent = 1;
-	else if (action == KOBJ_REMOVE)
+		break;
+
+	case KOBJ_REMOVE:
 		kobj->state_remove_uevent_sent = 1;
+		break;
+
+	case KOBJ_UNBIND:
+		zap_modalias_env(env);
+		break;
+
+	default:
+		break;
+	}
 
 	mutex_lock(&uevent_sock_mutex);
 	/* we will send an event, so request a new sequence number */
diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index 720144075c1e..661a1e807bd1 100644
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Convert integer string representation to an integer.
  * If an integer doesn't fit into specified type, -E is returned.
diff --git a/lib/kstrtox.h b/lib/kstrtox.h
index f13eeeaf441d..3b4637bcd254 100644
--- a/lib/kstrtox.h
+++ b/lib/kstrtox.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIB_KSTRTOX_H
 #define _LIB_KSTRTOX_H
 
diff --git a/lib/list_sort.c b/lib/list_sort.c
index 9e9acc37652f..85759928215b 100644
--- a/lib/list_sort.c
+++ b/lib/list_sort.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/bug.h>
 #include <linux/compiler.h>
diff --git a/lib/llist.c b/lib/llist.c
index ae5872b1df0c..7062e931a7bb 100644
--- a/lib/llist.c
+++ b/lib/llist.c
@@ -41,7 +41,7 @@ bool llist_add_batch(struct llist_node *new_first, struct llist_node *new_last,
 	struct llist_node *first;
 
 	do {
-		new_last->next = first = ACCESS_ONCE(head->first);
+		new_last->next = first = READ_ONCE(head->first);
 	} while (cmpxchg(&head->first, first, new_first) != first);
 
 	return !first;
diff --git a/lib/locking-selftest-hardirq.h b/lib/locking-selftest-hardirq.h
index 10d4a150b259..0d144a6d6a96 100644
--- a/lib/locking-selftest-hardirq.h
+++ b/lib/locking-selftest-hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef IRQ_DISABLE
 #undef IRQ_ENABLE
 #undef IRQ_ENTER
diff --git a/lib/locking-selftest-mutex.h b/lib/locking-selftest-mutex.h
index 68601b6f584b..7526c7746fb2 100644
--- a/lib/locking-selftest-mutex.h
+++ b/lib/locking-selftest-mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		ML
 
diff --git a/lib/locking-selftest-rlock.h b/lib/locking-selftest-rlock.h
index 6789044f4d0e..eccab18f5584 100644
--- a/lib/locking-selftest-rlock.h
+++ b/lib/locking-selftest-rlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		RL
 
diff --git a/lib/locking-selftest-rsem.h b/lib/locking-selftest-rsem.h
index 62da886680c7..4544858f922e 100644
--- a/lib/locking-selftest-rsem.h
+++ b/lib/locking-selftest-rsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		RSL
 
diff --git a/lib/locking-selftest-rtmutex.h b/lib/locking-selftest-rtmutex.h
index e3cb83989d16..fce8714c4170 100644
--- a/lib/locking-selftest-rtmutex.h
+++ b/lib/locking-selftest-rtmutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		RTL
 
diff --git a/lib/locking-selftest-softirq.h b/lib/locking-selftest-softirq.h
index a83de2a04ace..6adde4867cb8 100644
--- a/lib/locking-selftest-softirq.h
+++ b/lib/locking-selftest-softirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef IRQ_DISABLE
 #undef IRQ_ENABLE
 #undef IRQ_ENTER
diff --git a/lib/locking-selftest-spin.h b/lib/locking-selftest-spin.h
index ccd1b4b09757..6b24d699e502 100644
--- a/lib/locking-selftest-spin.h
+++ b/lib/locking-selftest-spin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		L
 
diff --git a/lib/locking-selftest-wlock.h b/lib/locking-selftest-wlock.h
index 0815322d99ed..0bc51c8cf3c5 100644
--- a/lib/locking-selftest-wlock.h
+++ b/lib/locking-selftest-wlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		WL
 
diff --git a/lib/locking-selftest-wsem.h b/lib/locking-selftest-wsem.h
index b88c5f2dc5f0..5ef18f931c9b 100644
--- a/lib/locking-selftest-wsem.h
+++ b/lib/locking-selftest-wsem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef LOCK
 #define LOCK		WSL
 
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index cd0b5c964bd0..b5c1293ce147 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * lib/locking-selftest.c
  *
@@ -2031,11 +2032,13 @@ void locking_selftest(void)
 	print_testname("mixed read-lock/lock-write ABBA");
 	pr_cont("             |");
 	dotest(rlock_ABBA1, FAILURE, LOCKTYPE_RWLOCK);
+#ifdef CONFIG_PROVE_LOCKING
 	/*
 	 * Lockdep does indeed fail here, but there's nothing we can do about
 	 * that now.  Don't kill lockdep for it.
 	 */
 	unexpected_testcase_failures--;
+#endif
 
 	pr_cont("             |");
 	dotest(rwsem_ABBA1, FAILURE, LOCKTYPE_RWSEM);
diff --git a/lib/lockref.c b/lib/lockref.c
index c4bfcb8836cd..47169ed7e964 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/lockref.h>
 
diff --git a/lib/lz4/lz4_decompress.c b/lib/lz4/lz4_decompress.c
index bd3574312b82..141734d255e4 100644
--- a/lib/lz4/lz4_decompress.c
+++ b/lib/lz4/lz4_decompress.c
@@ -85,8 +85,8 @@ static FORCE_INLINE int LZ4_decompress_generic(
 	const BYTE * const lowLimit = lowPrefix - dictSize;
 
 	const BYTE * const dictEnd = (const BYTE *)dictStart + dictSize;
-	const unsigned int dec32table[] = { 0, 1, 2, 1, 4, 4, 4, 4 };
-	const int dec64table[] = { 0, 0, 0, -1, 0, 1, 2, 3 };
+	static const unsigned int dec32table[] = { 0, 1, 2, 1, 4, 4, 4, 4 };
+	static const int dec64table[] = { 0, 0, 0, -1, 0, 1, 2, 3 };
 
 	const int safeDecode = (endOnInput == endOnInputSize);
 	const int checkOffset = ((safeDecode) && (dictSize < (int)(64 * KB)));
diff --git a/lib/lzo/lzodefs.h b/lib/lzo/lzodefs.h
index 6710b83ce72e..4edefd2f540c 100644
--- a/lib/lzo/lzodefs.h
+++ b/lib/lzo/lzodefs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  lzodefs.h -- architecture, OS and compiler specific defines
  *
diff --git a/lib/memweight.c b/lib/memweight.c
index e35fc8771893..94dd72ccaa7f 100644
--- a/lib/memweight.c
+++ b/lib/memweight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/bug.h>
 #include <linux/bitmap.h>
diff --git a/lib/mpi/Makefile b/lib/mpi/Makefile
index 019a68c90144..d5874a7f5ff9 100644
--- a/lib/mpi/Makefile
+++ b/lib/mpi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # MPI multiprecision maths library (from gpg)
 #
diff --git a/lib/mpi/mpi-pow.c b/lib/mpi/mpi-pow.c
index e24388a863a7..468fb7cd1221 100644
--- a/lib/mpi/mpi-pow.c
+++ b/lib/mpi/mpi-pow.c
@@ -26,6 +26,7 @@
  *	 however I decided to publish this code under the plain GPL.
  */
 
+#include <linux/sched.h>
 #include <linux/string.h>
 #include "mpi-internal.h"
 #include "longlong.h"
@@ -256,6 +257,7 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
 				}
 				e <<= 1;
 				c--;
+				cond_resched();
 			}
 
 			i--;
diff --git a/lib/net_utils.c b/lib/net_utils.c
index 148fc6e99ef6..af525353395d 100644
--- a/lib/net_utils.c
+++ b/lib/net_utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/string.h>
 #include <linux/if_ether.h>
 #include <linux/ctype.h>
diff --git a/lib/nlattr.c b/lib/nlattr.c
index 927c2f19f119..3d8295c85505 100644
--- a/lib/nlattr.c
+++ b/lib/nlattr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NETLINK      Netlink attributes
  *
diff --git a/lib/nmi_backtrace.c b/lib/nmi_backtrace.c
index 0bc0a3535a8a..46e4c749e4eb 100644
--- a/lib/nmi_backtrace.c
+++ b/lib/nmi_backtrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  NMI backtrace support
  *
diff --git a/lib/nodemask.c b/lib/nodemask.c
index e42a5bf44d33..3aa454c54c0d 100644
--- a/lib/nodemask.c
+++ b/lib/nodemask.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/nodemask.h>
 #include <linux/module.h>
 #include <linux/random.h>
diff --git a/lib/notifier-error-inject.h b/lib/notifier-error-inject.h
index 99b3b6fc470b..fafff5f2ac45 100644
--- a/lib/notifier-error-inject.h
+++ b/lib/notifier-error-inject.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/atomic.h>
 #include <linux/debugfs.h>
 #include <linux/notifier.h>
diff --git a/lib/once.c b/lib/once.c
index 05c8604627eb..bfb7420d0de3 100644
--- a/lib/once.c
+++ b/lib/once.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/once.h>
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 3bf4a9984f4c..c72577e472f2 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Fast batching percpu counters.
  */
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index a93adf6dcfb2..4add700ddfe3 100644
--- a/lib/raid6/Makefile
+++ b/lib/raid6/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RAID6_PQ)	+= raid6_pq.o
 
 raid6_pq-y	+= algos.o recov.o tables.o int1.o int2.o int4.o \
diff --git a/lib/raid6/recov_s390xc.c b/lib/raid6/recov_s390xc.c
index b042dac826cc..179eec900cea 100644
--- a/lib/raid6/recov_s390xc.c
+++ b/lib/raid6/recov_s390xc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * RAID-6 data recovery in dual failure mode based on the XC instruction.
  *
diff --git a/lib/raid6/s390vx.uc b/lib/raid6/s390vx.uc
index 7b45191a655f..140fa8bb5c23 100644
--- a/lib/raid6/s390vx.uc
+++ b/lib/raid6/s390vx.uc
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * raid6_vx$#.c
  *
diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index 2c7b60edea04..be1010bdc435 100644
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # This is a simple Makefile to test some of the RAID-6 code
 # from userspace.
diff --git a/lib/random32.c b/lib/random32.c
index fa594b1140e6..65cc018fef40 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is a maximally equidistributed combined Tausworthe generator
  * based on code from GNU Scientific Library 1.5 (30 Jun 2004)
@@ -214,7 +215,7 @@ core_initcall(prandom_init);
 
 static void __prandom_timer(unsigned long dontcare);
 
-static DEFINE_TIMER(seed_timer, __prandom_timer, 0, 0);
+static DEFINE_TIMER(seed_timer, __prandom_timer);
 
 static void __prandom_timer(unsigned long dontcare)
 {
diff --git a/lib/ratelimit.c b/lib/ratelimit.c
index 08f8043cac61..d01f47135239 100644
--- a/lib/ratelimit.c
+++ b/lib/ratelimit.c
@@ -48,7 +48,9 @@ int ___ratelimit(struct ratelimit_state *rs, const char *func)
 	if (time_is_before_jiffies(rs->begin + rs->interval)) {
 		if (rs->missed) {
 			if (!(rs->flags & RATELIMIT_MSG_ON_RELEASE)) {
-				pr_warn("%s: %d callbacks suppressed\n", func, rs->missed);
+				printk_deferred(KERN_WARNING
+						"%s: %d callbacks suppressed\n",
+						func, rs->missed);
 				rs->missed = 0;
 			}
 		}
diff --git a/lib/rational.c b/lib/rational.c
index f0aa21c2a762..ba7443677c90 100644
--- a/lib/rational.c
+++ b/lib/rational.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * rational fractions
  *
diff --git a/lib/reciprocal_div.c b/lib/reciprocal_div.c
index 464152410c51..fcb4ce682c6f 100644
--- a/lib/reciprocal_div.c
+++ b/lib/reciprocal_div.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <asm/div64.h>
 #include <linux/reciprocal_div.h>
diff --git a/lib/refcount.c b/lib/refcount.c
index 5d0582a9480c..0eb48353abe3 100644
--- a/lib/refcount.c
+++ b/lib/refcount.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Variant of atomic_t specialized for reference counts.
  *
diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index 707ca5d677c6..ddd7dde87c3c 100644
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -735,9 +735,9 @@ EXPORT_SYMBOL_GPL(rhashtable_walk_exit);
  * rhashtable_walk_start - Start a hash table walk
  * @iter:	Hash table iterator
  *
- * Start a hash table walk.  Note that we take the RCU lock in all
- * cases including when we return an error.  So you must always call
- * rhashtable_walk_stop to clean up.
+ * Start a hash table walk at the current iterator position.  Note that we take
+ * the RCU lock in all cases including when we return an error.  So you must
+ * always call rhashtable_walk_stop to clean up.
  *
  * Returns zero if successful.
  *
@@ -846,7 +846,8 @@ EXPORT_SYMBOL_GPL(rhashtable_walk_next);
  * rhashtable_walk_stop - Finish a hash table walk
  * @iter:	Hash table iterator
  *
- * Finish a hash table walk.
+ * Finish a hash table walk.  Does not reset the iterator to the start of the
+ * hash table.
  */
 void rhashtable_walk_stop(struct rhashtable_iter *iter)
 	__releases(RCU)
diff --git a/lib/seq_buf.c b/lib/seq_buf.c
index cb18469e1f49..11f2ae0f9099 100644
--- a/lib/seq_buf.c
+++ b/lib/seq_buf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * seq_buf.c
  *
diff --git a/lib/sha1.c b/lib/sha1.c
index 5a56dfd7b99d..1d96d2c02b82 100644
--- a/lib/sha1.c
+++ b/lib/sha1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SHA1 routine optimized to do word accesses rather than byte accesses,
  * and to avoid unnecessary copies into the context array.
diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
index 2fb007be0212..835cc6df2776 100644
--- a/lib/smp_processor_id.c
+++ b/lib/smp_processor_id.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * lib/smp_processor_id.c
  *
diff --git a/lib/sort.c b/lib/sort.c
index 975c6ef6fec7..d6b7a202b0b6 100644
--- a/lib/sort.c
+++ b/lib/sort.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * A fast, small, non-recursive O(nlog n) sort for the Linux kernel
  *
diff --git a/lib/string.c b/lib/string.c
index 9921dc202db4..5e8d410a93df 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/lib/string.c
  *
diff --git a/lib/string_helpers.c b/lib/string_helpers.c
index ecaac2c0526f..29c490e5d478 100644
--- a/lib/string_helpers.c
+++ b/lib/string_helpers.c
@@ -576,7 +576,7 @@ char *kstrdup_quotable_cmdline(struct task_struct *task, gfp_t gfp)
 	char *buffer, *quoted;
 	int i, res;
 
-	buffer = kmalloc(PAGE_SIZE, GFP_TEMPORARY);
+	buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
 	if (!buffer)
 		return NULL;
 
@@ -612,7 +612,7 @@ char *kstrdup_quotable_file(struct file *file, gfp_t gfp)
 		return kstrdup("<unknown>", gfp);
 
 	/* We add 11 spaces for ' (deleted)' to be appended */
-	temp = kmalloc(PATH_MAX + 11, GFP_TEMPORARY);
+	temp = kmalloc(PATH_MAX + 11, GFP_KERNEL);
 	if (!temp)
 		return kstrdup("<no_memory>", gfp);
 
diff --git a/lib/strncpy_from_user.c b/lib/strncpy_from_user.c
index 7e35fc450c5b..b53e1b5d80f4 100644
--- a/lib/strncpy_from_user.c
+++ b/lib/strncpy_from_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/export.h>
 #include <linux/kasan-checks.h>
diff --git a/lib/strnlen_user.c b/lib/strnlen_user.c
index a5f567747ced..60d0bbda8f5e 100644
--- a/lib/strnlen_user.c
+++ b/lib/strnlen_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/export.h>
 #include <linux/uaccess.h>
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 8c6c83ef57a4..cea19aaf303c 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -507,8 +507,9 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
 	if (no_iotlb_memory)
 		panic("Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer");
 
-	if (sme_active())
-		pr_warn_once("SME is active and system is using DMA bounce buffers\n");
+	if (mem_encrypt_active())
+		pr_warn_once("%s is active and system is using DMA bounce buffers\n",
+			     sme_active() ? "SME" : "SEV");
 
 	mask = dma_get_seg_boundary(hwdev);
 
diff --git a/lib/syscall.c b/lib/syscall.c
index 2c6cd1b5c3ea..1a7077f20eae 100644
--- a/lib/syscall.c
+++ b/lib/syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ptrace.h>
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c
index 599c6713f2a2..aa1f2669bdd5 100644
--- a/lib/test_bitmap.c
+++ b/lib/test_bitmap.c
@@ -186,13 +186,13 @@ static const unsigned long exp[] __initconst = {
 	BITMAP_FROM_U64(0x22222222),
 	BITMAP_FROM_U64(0xffffffff),
 	BITMAP_FROM_U64(0xfffffffe),
-	BITMAP_FROM_U64(0x3333333311111111),
-	BITMAP_FROM_U64(0xffffffff77777777)
+	BITMAP_FROM_U64(0x3333333311111111ULL),
+	BITMAP_FROM_U64(0xffffffff77777777ULL)
 };
 
 static const unsigned long exp2[] __initconst = {
-	BITMAP_FROM_U64(0x3333333311111111),
-	BITMAP_FROM_U64(0xffffffff77777777)
+	BITMAP_FROM_U64(0x3333333311111111ULL),
+	BITMAP_FROM_U64(0xffffffff77777777ULL)
 };
 
 static const struct test_bitmap_parselist parselist_tests[] __initconst = {
diff --git a/lib/ts_fsm.c b/lib/ts_fsm.c
index 5696a35184e4..69557c74ef9f 100644
--- a/lib/ts_fsm.c
+++ b/lib/ts_fsm.c
@@ -11,7 +11,7 @@
  * ==========================================================================
  *
  *   A finite state machine consists of n states (struct ts_fsm_token)
- *   representing the pattern as a finite automation. The data is read
+ *   representing the pattern as a finite automaton. The data is read
  *   sequentially on an octet basis. Every state token specifies the number
  *   of recurrences and the type of value accepted which can be either a
  *   specific character or ctype based set of characters. The available
diff --git a/lib/ts_kmp.c b/lib/ts_kmp.c
index 632f783e65f1..ffbe66cbb0ed 100644
--- a/lib/ts_kmp.c
+++ b/lib/ts_kmp.c
@@ -27,7 +27,7 @@
  *
  *   [1] Cormen, Leiserson, Rivest, Stein
  *       Introdcution to Algorithms, 2nd Edition, MIT Press
- *   [2] See finite automation theory
+ *   [2] See finite automaton theory
  */
 
 #include <linux/module.h>
diff --git a/lib/ubsan.h b/lib/ubsan.h
index b2d18d4a53f5..88f23557edbe 100644
--- a/lib/ubsan.h
+++ b/lib/ubsan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIB_UBSAN_H
 #define _LIB_UBSAN_H
 
diff --git a/lib/ucs2_string.c b/lib/ucs2_string.c
index ae8d2491133c..d7e06b28de38 100644
--- a/lib/ucs2_string.c
+++ b/lib/ucs2_string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ucs2_string.h>
 #include <linux/module.h>
 
diff --git a/lib/usercopy.c b/lib/usercopy.c
index f5d9f08ee032..15e2e6fb060e 100644
--- a/lib/usercopy.c
+++ b/lib/usercopy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/uaccess.h>
 
 /* out-of-line parts */
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 86c3385b9eb3..1746bae94d41 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -620,8 +620,8 @@ char *dentry_name(char *buf, char *end, const struct dentry *d, struct printf_sp
 
 	rcu_read_lock();
 	for (i = 0; i < depth; i++, d = p) {
-		p = ACCESS_ONCE(d->d_parent);
-		array[i] = ACCESS_ONCE(d->d_name.name);
+		p = READ_ONCE(d->d_parent);
+		array[i] = READ_ONCE(d->d_name.name);
 		if (p == d) {
 			if (i)
 				array[i] = "";
diff --git a/lib/win_minmax.c b/lib/win_minmax.c
index c8420d404926..6bdc1cd15f76 100644
--- a/lib/win_minmax.c
+++ b/lib/win_minmax.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * lib/minmax.c: windowed min/max tracker
  *
diff --git a/lib/xxhash.c b/lib/xxhash.c
new file mode 100644
index 000000000000..aa61e2a3802f
--- /dev/null
+++ b/lib/xxhash.c
@@ -0,0 +1,500 @@
+/*
+ * xxHash - Extremely Fast Hash algorithm
+ * Copyright (C) 2012-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following disclaimer
+ *     in the documentation and/or other materials provided with the
+ *     distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at:
+ * - xxHash homepage: http://cyan4973.github.io/xxHash/
+ * - xxHash source repository: https://github.com/Cyan4973/xxHash
+ */
+
+#include <asm/unaligned.h>
+#include <linux/errno.h>
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/xxhash.h>
+
+/*-*************************************
+ * Macros
+ **************************************/
+#define xxh_rotl32(x, r) ((x << r) | (x >> (32 - r)))
+#define xxh_rotl64(x, r) ((x << r) | (x >> (64 - r)))
+
+#ifdef __LITTLE_ENDIAN
+# define XXH_CPU_LITTLE_ENDIAN 1
+#else
+# define XXH_CPU_LITTLE_ENDIAN 0
+#endif
+
+/*-*************************************
+ * Constants
+ **************************************/
+static const uint32_t PRIME32_1 = 2654435761U;
+static const uint32_t PRIME32_2 = 2246822519U;
+static const uint32_t PRIME32_3 = 3266489917U;
+static const uint32_t PRIME32_4 =  668265263U;
+static const uint32_t PRIME32_5 =  374761393U;
+
+static const uint64_t PRIME64_1 = 11400714785074694791ULL;
+static const uint64_t PRIME64_2 = 14029467366897019727ULL;
+static const uint64_t PRIME64_3 =  1609587929392839161ULL;
+static const uint64_t PRIME64_4 =  9650029242287828579ULL;
+static const uint64_t PRIME64_5 =  2870177450012600261ULL;
+
+/*-**************************
+ *  Utils
+ ***************************/
+void xxh32_copy_state(struct xxh32_state *dst, const struct xxh32_state *src)
+{
+	memcpy(dst, src, sizeof(*dst));
+}
+EXPORT_SYMBOL(xxh32_copy_state);
+
+void xxh64_copy_state(struct xxh64_state *dst, const struct xxh64_state *src)
+{
+	memcpy(dst, src, sizeof(*dst));
+}
+EXPORT_SYMBOL(xxh64_copy_state);
+
+/*-***************************
+ * Simple Hash Functions
+ ****************************/
+static uint32_t xxh32_round(uint32_t seed, const uint32_t input)
+{
+	seed += input * PRIME32_2;
+	seed = xxh_rotl32(seed, 13);
+	seed *= PRIME32_1;
+	return seed;
+}
+
+uint32_t xxh32(const void *input, const size_t len, const uint32_t seed)
+{
+	const uint8_t *p = (const uint8_t *)input;
+	const uint8_t *b_end = p + len;
+	uint32_t h32;
+
+	if (len >= 16) {
+		const uint8_t *const limit = b_end - 16;
+		uint32_t v1 = seed + PRIME32_1 + PRIME32_2;
+		uint32_t v2 = seed + PRIME32_2;
+		uint32_t v3 = seed + 0;
+		uint32_t v4 = seed - PRIME32_1;
+
+		do {
+			v1 = xxh32_round(v1, get_unaligned_le32(p));
+			p += 4;
+			v2 = xxh32_round(v2, get_unaligned_le32(p));
+			p += 4;
+			v3 = xxh32_round(v3, get_unaligned_le32(p));
+			p += 4;
+			v4 = xxh32_round(v4, get_unaligned_le32(p));
+			p += 4;
+		} while (p <= limit);
+
+		h32 = xxh_rotl32(v1, 1) + xxh_rotl32(v2, 7) +
+			xxh_rotl32(v3, 12) + xxh_rotl32(v4, 18);
+	} else {
+		h32 = seed + PRIME32_5;
+	}
+
+	h32 += (uint32_t)len;
+
+	while (p + 4 <= b_end) {
+		h32 += get_unaligned_le32(p) * PRIME32_3;
+		h32 = xxh_rotl32(h32, 17) * PRIME32_4;
+		p += 4;
+	}
+
+	while (p < b_end) {
+		h32 += (*p) * PRIME32_5;
+		h32 = xxh_rotl32(h32, 11) * PRIME32_1;
+		p++;
+	}
+
+	h32 ^= h32 >> 15;
+	h32 *= PRIME32_2;
+	h32 ^= h32 >> 13;
+	h32 *= PRIME32_3;
+	h32 ^= h32 >> 16;
+
+	return h32;
+}
+EXPORT_SYMBOL(xxh32);
+
+static uint64_t xxh64_round(uint64_t acc, const uint64_t input)
+{
+	acc += input * PRIME64_2;
+	acc = xxh_rotl64(acc, 31);
+	acc *= PRIME64_1;
+	return acc;
+}
+
+static uint64_t xxh64_merge_round(uint64_t acc, uint64_t val)
+{
+	val = xxh64_round(0, val);
+	acc ^= val;
+	acc = acc * PRIME64_1 + PRIME64_4;
+	return acc;
+}
+
+uint64_t xxh64(const void *input, const size_t len, const uint64_t seed)
+{
+	const uint8_t *p = (const uint8_t *)input;
+	const uint8_t *const b_end = p + len;
+	uint64_t h64;
+
+	if (len >= 32) {
+		const uint8_t *const limit = b_end - 32;
+		uint64_t v1 = seed + PRIME64_1 + PRIME64_2;
+		uint64_t v2 = seed + PRIME64_2;
+		uint64_t v3 = seed + 0;
+		uint64_t v4 = seed - PRIME64_1;
+
+		do {
+			v1 = xxh64_round(v1, get_unaligned_le64(p));
+			p += 8;
+			v2 = xxh64_round(v2, get_unaligned_le64(p));
+			p += 8;
+			v3 = xxh64_round(v3, get_unaligned_le64(p));
+			p += 8;
+			v4 = xxh64_round(v4, get_unaligned_le64(p));
+			p += 8;
+		} while (p <= limit);
+
+		h64 = xxh_rotl64(v1, 1) + xxh_rotl64(v2, 7) +
+			xxh_rotl64(v3, 12) + xxh_rotl64(v4, 18);
+		h64 = xxh64_merge_round(h64, v1);
+		h64 = xxh64_merge_round(h64, v2);
+		h64 = xxh64_merge_round(h64, v3);
+		h64 = xxh64_merge_round(h64, v4);
+
+	} else {
+		h64  = seed + PRIME64_5;
+	}
+
+	h64 += (uint64_t)len;
+
+	while (p + 8 <= b_end) {
+		const uint64_t k1 = xxh64_round(0, get_unaligned_le64(p));
+
+		h64 ^= k1;
+		h64 = xxh_rotl64(h64, 27) * PRIME64_1 + PRIME64_4;
+		p += 8;
+	}
+
+	if (p + 4 <= b_end) {
+		h64 ^= (uint64_t)(get_unaligned_le32(p)) * PRIME64_1;
+		h64 = xxh_rotl64(h64, 23) * PRIME64_2 + PRIME64_3;
+		p += 4;
+	}
+
+	while (p < b_end) {
+		h64 ^= (*p) * PRIME64_5;
+		h64 = xxh_rotl64(h64, 11) * PRIME64_1;
+		p++;
+	}
+
+	h64 ^= h64 >> 33;
+	h64 *= PRIME64_2;
+	h64 ^= h64 >> 29;
+	h64 *= PRIME64_3;
+	h64 ^= h64 >> 32;
+
+	return h64;
+}
+EXPORT_SYMBOL(xxh64);
+
+/*-**************************************************
+ * Advanced Hash Functions
+ ***************************************************/
+void xxh32_reset(struct xxh32_state *statePtr, const uint32_t seed)
+{
+	/* use a local state for memcpy() to avoid strict-aliasing warnings */
+	struct xxh32_state state;
+
+	memset(&state, 0, sizeof(state));
+	state.v1 = seed + PRIME32_1 + PRIME32_2;
+	state.v2 = seed + PRIME32_2;
+	state.v3 = seed + 0;
+	state.v4 = seed - PRIME32_1;
+	memcpy(statePtr, &state, sizeof(state));
+}
+EXPORT_SYMBOL(xxh32_reset);
+
+void xxh64_reset(struct xxh64_state *statePtr, const uint64_t seed)
+{
+	/* use a local state for memcpy() to avoid strict-aliasing warnings */
+	struct xxh64_state state;
+
+	memset(&state, 0, sizeof(state));
+	state.v1 = seed + PRIME64_1 + PRIME64_2;
+	state.v2 = seed + PRIME64_2;
+	state.v3 = seed + 0;
+	state.v4 = seed - PRIME64_1;
+	memcpy(statePtr, &state, sizeof(state));
+}
+EXPORT_SYMBOL(xxh64_reset);
+
+int xxh32_update(struct xxh32_state *state, const void *input, const size_t len)
+{
+	const uint8_t *p = (const uint8_t *)input;
+	const uint8_t *const b_end = p + len;
+
+	if (input == NULL)
+		return -EINVAL;
+
+	state->total_len_32 += (uint32_t)len;
+	state->large_len |= (len >= 16) | (state->total_len_32 >= 16);
+
+	if (state->memsize + len < 16) { /* fill in tmp buffer */
+		memcpy((uint8_t *)(state->mem32) + state->memsize, input, len);
+		state->memsize += (uint32_t)len;
+		return 0;
+	}
+
+	if (state->memsize) { /* some data left from previous update */
+		const uint32_t *p32 = state->mem32;
+
+		memcpy((uint8_t *)(state->mem32) + state->memsize, input,
+			16 - state->memsize);
+
+		state->v1 = xxh32_round(state->v1, get_unaligned_le32(p32));
+		p32++;
+		state->v2 = xxh32_round(state->v2, get_unaligned_le32(p32));
+		p32++;
+		state->v3 = xxh32_round(state->v3, get_unaligned_le32(p32));
+		p32++;
+		state->v4 = xxh32_round(state->v4, get_unaligned_le32(p32));
+		p32++;
+
+		p += 16-state->memsize;
+		state->memsize = 0;
+	}
+
+	if (p <= b_end - 16) {
+		const uint8_t *const limit = b_end - 16;
+		uint32_t v1 = state->v1;
+		uint32_t v2 = state->v2;
+		uint32_t v3 = state->v3;
+		uint32_t v4 = state->v4;
+
+		do {
+			v1 = xxh32_round(v1, get_unaligned_le32(p));
+			p += 4;
+			v2 = xxh32_round(v2, get_unaligned_le32(p));
+			p += 4;
+			v3 = xxh32_round(v3, get_unaligned_le32(p));
+			p += 4;
+			v4 = xxh32_round(v4, get_unaligned_le32(p));
+			p += 4;
+		} while (p <= limit);
+
+		state->v1 = v1;
+		state->v2 = v2;
+		state->v3 = v3;
+		state->v4 = v4;
+	}
+
+	if (p < b_end) {
+		memcpy(state->mem32, p, (size_t)(b_end-p));
+		state->memsize = (uint32_t)(b_end-p);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(xxh32_update);
+
+uint32_t xxh32_digest(const struct xxh32_state *state)
+{
+	const uint8_t *p = (const uint8_t *)state->mem32;
+	const uint8_t *const b_end = (const uint8_t *)(state->mem32) +
+		state->memsize;
+	uint32_t h32;
+
+	if (state->large_len) {
+		h32 = xxh_rotl32(state->v1, 1) + xxh_rotl32(state->v2, 7) +
+			xxh_rotl32(state->v3, 12) + xxh_rotl32(state->v4, 18);
+	} else {
+		h32 = state->v3 /* == seed */ + PRIME32_5;
+	}
+
+	h32 += state->total_len_32;
+
+	while (p + 4 <= b_end) {
+		h32 += get_unaligned_le32(p) * PRIME32_3;
+		h32 = xxh_rotl32(h32, 17) * PRIME32_4;
+		p += 4;
+	}
+
+	while (p < b_end) {
+		h32 += (*p) * PRIME32_5;
+		h32 = xxh_rotl32(h32, 11) * PRIME32_1;
+		p++;
+	}
+
+	h32 ^= h32 >> 15;
+	h32 *= PRIME32_2;
+	h32 ^= h32 >> 13;
+	h32 *= PRIME32_3;
+	h32 ^= h32 >> 16;
+
+	return h32;
+}
+EXPORT_SYMBOL(xxh32_digest);
+
+int xxh64_update(struct xxh64_state *state, const void *input, const size_t len)
+{
+	const uint8_t *p = (const uint8_t *)input;
+	const uint8_t *const b_end = p + len;
+
+	if (input == NULL)
+		return -EINVAL;
+
+	state->total_len += len;
+
+	if (state->memsize + len < 32) { /* fill in tmp buffer */
+		memcpy(((uint8_t *)state->mem64) + state->memsize, input, len);
+		state->memsize += (uint32_t)len;
+		return 0;
+	}
+
+	if (state->memsize) { /* tmp buffer is full */
+		uint64_t *p64 = state->mem64;
+
+		memcpy(((uint8_t *)p64) + state->memsize, input,
+			32 - state->memsize);
+
+		state->v1 = xxh64_round(state->v1, get_unaligned_le64(p64));
+		p64++;
+		state->v2 = xxh64_round(state->v2, get_unaligned_le64(p64));
+		p64++;
+		state->v3 = xxh64_round(state->v3, get_unaligned_le64(p64));
+		p64++;
+		state->v4 = xxh64_round(state->v4, get_unaligned_le64(p64));
+
+		p += 32 - state->memsize;
+		state->memsize = 0;
+	}
+
+	if (p + 32 <= b_end) {
+		const uint8_t *const limit = b_end - 32;
+		uint64_t v1 = state->v1;
+		uint64_t v2 = state->v2;
+		uint64_t v3 = state->v3;
+		uint64_t v4 = state->v4;
+
+		do {
+			v1 = xxh64_round(v1, get_unaligned_le64(p));
+			p += 8;
+			v2 = xxh64_round(v2, get_unaligned_le64(p));
+			p += 8;
+			v3 = xxh64_round(v3, get_unaligned_le64(p));
+			p += 8;
+			v4 = xxh64_round(v4, get_unaligned_le64(p));
+			p += 8;
+		} while (p <= limit);
+
+		state->v1 = v1;
+		state->v2 = v2;
+		state->v3 = v3;
+		state->v4 = v4;
+	}
+
+	if (p < b_end) {
+		memcpy(state->mem64, p, (size_t)(b_end-p));
+		state->memsize = (uint32_t)(b_end - p);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(xxh64_update);
+
+uint64_t xxh64_digest(const struct xxh64_state *state)
+{
+	const uint8_t *p = (const uint8_t *)state->mem64;
+	const uint8_t *const b_end = (const uint8_t *)state->mem64 +
+		state->memsize;
+	uint64_t h64;
+
+	if (state->total_len >= 32) {
+		const uint64_t v1 = state->v1;
+		const uint64_t v2 = state->v2;
+		const uint64_t v3 = state->v3;
+		const uint64_t v4 = state->v4;
+
+		h64 = xxh_rotl64(v1, 1) + xxh_rotl64(v2, 7) +
+			xxh_rotl64(v3, 12) + xxh_rotl64(v4, 18);
+		h64 = xxh64_merge_round(h64, v1);
+		h64 = xxh64_merge_round(h64, v2);
+		h64 = xxh64_merge_round(h64, v3);
+		h64 = xxh64_merge_round(h64, v4);
+	} else {
+		h64  = state->v3 + PRIME64_5;
+	}
+
+	h64 += (uint64_t)state->total_len;
+
+	while (p + 8 <= b_end) {
+		const uint64_t k1 = xxh64_round(0, get_unaligned_le64(p));
+
+		h64 ^= k1;
+		h64 = xxh_rotl64(h64, 27) * PRIME64_1 + PRIME64_4;
+		p += 8;
+	}
+
+	if (p + 4 <= b_end) {
+		h64 ^= (uint64_t)(get_unaligned_le32(p)) * PRIME64_1;
+		h64 = xxh_rotl64(h64, 23) * PRIME64_2 + PRIME64_3;
+		p += 4;
+	}
+
+	while (p < b_end) {
+		h64 ^= (*p) * PRIME64_5;
+		h64 = xxh_rotl64(h64, 11) * PRIME64_1;
+		p++;
+	}
+
+	h64 ^= h64 >> 33;
+	h64 *= PRIME64_2;
+	h64 ^= h64 >> 29;
+	h64 *= PRIME64_3;
+	h64 ^= h64 >> 32;
+
+	return h64;
+}
+EXPORT_SYMBOL(xxh64_digest);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("xxHash");
diff --git a/lib/zstd/Makefile b/lib/zstd/Makefile
new file mode 100644
index 000000000000..dd0a359c135b
--- /dev/null
+++ b/lib/zstd/Makefile
@@ -0,0 +1,18 @@
+obj-$(CONFIG_ZSTD_COMPRESS) += zstd_compress.o
+obj-$(CONFIG_ZSTD_DECOMPRESS) += zstd_decompress.o
+
+ccflags-y += -O3
+
+# Object files unique to zstd_compress and zstd_decompress
+zstd_compress-y := fse_compress.o huf_compress.o compress.o
+zstd_decompress-y := huf_decompress.o decompress.o
+
+# These object files are shared between the modules.
+# Always add them to zstd_compress.
+# Unless both zstd_compress and zstd_decompress are built in
+# then also add them to zstd_decompress.
+zstd_compress-y += entropy_common.o fse_decompress.o zstd_common.o
+
+ifneq ($(CONFIG_ZSTD_COMPRESS)$(CONFIG_ZSTD_DECOMPRESS),yy)
+	zstd_decompress-y += entropy_common.o fse_decompress.o zstd_common.o
+endif
diff --git a/lib/zstd/bitstream.h b/lib/zstd/bitstream.h
new file mode 100644
index 000000000000..a826b99e1d63
--- /dev/null
+++ b/lib/zstd/bitstream.h
@@ -0,0 +1,374 @@
+/*
+ * bitstream
+ * Part of FSE library
+ * header file (to include)
+ * Copyright (C) 2013-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+#ifndef BITSTREAM_H_MODULE
+#define BITSTREAM_H_MODULE
+
+/*
+*  This API consists of small unitary functions, which must be inlined for best performance.
+*  Since link-time-optimization is not available for all compilers,
+*  these functions are defined into a .h to be included.
+*/
+
+/*-****************************************
+*  Dependencies
+******************************************/
+#include "error_private.h" /* error codes and messages */
+#include "mem.h"	   /* unaligned access routines */
+
+/*=========================================
+*  Target specific
+=========================================*/
+#define STREAM_ACCUMULATOR_MIN_32 25
+#define STREAM_ACCUMULATOR_MIN_64 57
+#define STREAM_ACCUMULATOR_MIN ((U32)(ZSTD_32bits() ? STREAM_ACCUMULATOR_MIN_32 : STREAM_ACCUMULATOR_MIN_64))
+
+/*-******************************************
+*  bitStream encoding API (write forward)
+********************************************/
+/* bitStream can mix input from multiple sources.
+*  A critical property of these streams is that they encode and decode in **reverse** direction.
+*  So the first bit sequence you add will be the last to be read, like a LIFO stack.
+*/
+typedef struct {
+	size_t bitContainer;
+	int bitPos;
+	char *startPtr;
+	char *ptr;
+	char *endPtr;
+} BIT_CStream_t;
+
+ZSTD_STATIC size_t BIT_initCStream(BIT_CStream_t *bitC, void *dstBuffer, size_t dstCapacity);
+ZSTD_STATIC void BIT_addBits(BIT_CStream_t *bitC, size_t value, unsigned nbBits);
+ZSTD_STATIC void BIT_flushBits(BIT_CStream_t *bitC);
+ZSTD_STATIC size_t BIT_closeCStream(BIT_CStream_t *bitC);
+
+/* Start with initCStream, providing the size of buffer to write into.
+*  bitStream will never write outside of this buffer.
+*  `dstCapacity` must be >= sizeof(bitD->bitContainer), otherwise @return will be an error code.
+*
+*  bits are first added to a local register.
+*  Local register is size_t, hence 64-bits on 64-bits systems, or 32-bits on 32-bits systems.
+*  Writing data into memory is an explicit operation, performed by the flushBits function.
+*  Hence keep track how many bits are potentially stored into local register to avoid register overflow.
+*  After a flushBits, a maximum of 7 bits might still be stored into local register.
+*
+*  Avoid storing elements of more than 24 bits if you want compatibility with 32-bits bitstream readers.
+*
+*  Last operation is to close the bitStream.
+*  The function returns the final size of CStream in bytes.
+*  If data couldn't fit into `dstBuffer`, it will return a 0 ( == not storable)
+*/
+
+/*-********************************************
+*  bitStream decoding API (read backward)
+**********************************************/
+typedef struct {
+	size_t bitContainer;
+	unsigned bitsConsumed;
+	const char *ptr;
+	const char *start;
+} BIT_DStream_t;
+
+typedef enum {
+	BIT_DStream_unfinished = 0,
+	BIT_DStream_endOfBuffer = 1,
+	BIT_DStream_completed = 2,
+	BIT_DStream_overflow = 3
+} BIT_DStream_status; /* result of BIT_reloadDStream() */
+/* 1,2,4,8 would be better for bitmap combinations, but slows down performance a bit ... :( */
+
+ZSTD_STATIC size_t BIT_initDStream(BIT_DStream_t *bitD, const void *srcBuffer, size_t srcSize);
+ZSTD_STATIC size_t BIT_readBits(BIT_DStream_t *bitD, unsigned nbBits);
+ZSTD_STATIC BIT_DStream_status BIT_reloadDStream(BIT_DStream_t *bitD);
+ZSTD_STATIC unsigned BIT_endOfDStream(const BIT_DStream_t *bitD);
+
+/* Start by invoking BIT_initDStream().
+*  A chunk of the bitStream is then stored into a local register.
+*  Local register size is 64-bits on 64-bits systems, 32-bits on 32-bits systems (size_t).
+*  You can then retrieve bitFields stored into the local register, **in reverse order**.
+*  Local register is explicitly reloaded from memory by the BIT_reloadDStream() method.
+*  A reload guarantee a minimum of ((8*sizeof(bitD->bitContainer))-7) bits when its result is BIT_DStream_unfinished.
+*  Otherwise, it can be less than that, so proceed accordingly.
+*  Checking if DStream has reached its end can be performed with BIT_endOfDStream().
+*/
+
+/*-****************************************
+*  unsafe API
+******************************************/
+ZSTD_STATIC void BIT_addBitsFast(BIT_CStream_t *bitC, size_t value, unsigned nbBits);
+/* faster, but works only if value is "clean", meaning all high bits above nbBits are 0 */
+
+ZSTD_STATIC void BIT_flushBitsFast(BIT_CStream_t *bitC);
+/* unsafe version; does not check buffer overflow */
+
+ZSTD_STATIC size_t BIT_readBitsFast(BIT_DStream_t *bitD, unsigned nbBits);
+/* faster, but works only if nbBits >= 1 */
+
+/*-**************************************************************
+*  Internal functions
+****************************************************************/
+ZSTD_STATIC unsigned BIT_highbit32(register U32 val) { return 31 - __builtin_clz(val); }
+
+/*=====    Local Constants   =====*/
+static const unsigned BIT_mask[] = {0,       1,       3,       7,	0xF,      0x1F,     0x3F,     0x7F,      0xFF,
+				    0x1FF,   0x3FF,   0x7FF,   0xFFF,    0x1FFF,   0x3FFF,   0x7FFF,   0xFFFF,    0x1FFFF,
+				    0x3FFFF, 0x7FFFF, 0xFFFFF, 0x1FFFFF, 0x3FFFFF, 0x7FFFFF, 0xFFFFFF, 0x1FFFFFF, 0x3FFFFFF}; /* up to 26 bits */
+
+/*-**************************************************************
+*  bitStream encoding
+****************************************************************/
+/*! BIT_initCStream() :
+ *  `dstCapacity` must be > sizeof(void*)
+ *  @return : 0 if success,
+			  otherwise an error code (can be tested using ERR_isError() ) */
+ZSTD_STATIC size_t BIT_initCStream(BIT_CStream_t *bitC, void *startPtr, size_t dstCapacity)
+{
+	bitC->bitContainer = 0;
+	bitC->bitPos = 0;
+	bitC->startPtr = (char *)startPtr;
+	bitC->ptr = bitC->startPtr;
+	bitC->endPtr = bitC->startPtr + dstCapacity - sizeof(bitC->ptr);
+	if (dstCapacity <= sizeof(bitC->ptr))
+		return ERROR(dstSize_tooSmall);
+	return 0;
+}
+
+/*! BIT_addBits() :
+	can add up to 26 bits into `bitC`.
+	Does not check for register overflow ! */
+ZSTD_STATIC void BIT_addBits(BIT_CStream_t *bitC, size_t value, unsigned nbBits)
+{
+	bitC->bitContainer |= (value & BIT_mask[nbBits]) << bitC->bitPos;
+	bitC->bitPos += nbBits;
+}
+
+/*! BIT_addBitsFast() :
+ *  works only if `value` is _clean_, meaning all high bits above nbBits are 0 */
+ZSTD_STATIC void BIT_addBitsFast(BIT_CStream_t *bitC, size_t value, unsigned nbBits)
+{
+	bitC->bitContainer |= value << bitC->bitPos;
+	bitC->bitPos += nbBits;
+}
+
+/*! BIT_flushBitsFast() :
+ *  unsafe version; does not check buffer overflow */
+ZSTD_STATIC void BIT_flushBitsFast(BIT_CStream_t *bitC)
+{
+	size_t const nbBytes = bitC->bitPos >> 3;
+	ZSTD_writeLEST(bitC->ptr, bitC->bitContainer);
+	bitC->ptr += nbBytes;
+	bitC->bitPos &= 7;
+	bitC->bitContainer >>= nbBytes * 8; /* if bitPos >= sizeof(bitContainer)*8 --> undefined behavior */
+}
+
+/*! BIT_flushBits() :
+ *  safe version; check for buffer overflow, and prevents it.
+ *  note : does not signal buffer overflow. This will be revealed later on using BIT_closeCStream() */
+ZSTD_STATIC void BIT_flushBits(BIT_CStream_t *bitC)
+{
+	size_t const nbBytes = bitC->bitPos >> 3;
+	ZSTD_writeLEST(bitC->ptr, bitC->bitContainer);
+	bitC->ptr += nbBytes;
+	if (bitC->ptr > bitC->endPtr)
+		bitC->ptr = bitC->endPtr;
+	bitC->bitPos &= 7;
+	bitC->bitContainer >>= nbBytes * 8; /* if bitPos >= sizeof(bitContainer)*8 --> undefined behavior */
+}
+
+/*! BIT_closeCStream() :
+ *  @return : size of CStream, in bytes,
+			  or 0 if it could not fit into dstBuffer */
+ZSTD_STATIC size_t BIT_closeCStream(BIT_CStream_t *bitC)
+{
+	BIT_addBitsFast(bitC, 1, 1); /* endMark */
+	BIT_flushBits(bitC);
+
+	if (bitC->ptr >= bitC->endPtr)
+		return 0; /* doesn't fit within authorized budget : cancel */
+
+	return (bitC->ptr - bitC->startPtr) + (bitC->bitPos > 0);
+}
+
+/*-********************************************************
+* bitStream decoding
+**********************************************************/
+/*! BIT_initDStream() :
+*   Initialize a BIT_DStream_t.
+*   `bitD` : a pointer to an already allocated BIT_DStream_t structure.
+*   `srcSize` must be the *exact* size of the bitStream, in bytes.
+*   @return : size of stream (== srcSize) or an errorCode if a problem is detected
+*/
+ZSTD_STATIC size_t BIT_initDStream(BIT_DStream_t *bitD, const void *srcBuffer, size_t srcSize)
+{
+	if (srcSize < 1) {
+		memset(bitD, 0, sizeof(*bitD));
+		return ERROR(srcSize_wrong);
+	}
+
+	if (srcSize >= sizeof(bitD->bitContainer)) { /* normal case */
+		bitD->start = (const char *)srcBuffer;
+		bitD->ptr = (const char *)srcBuffer + srcSize - sizeof(bitD->bitContainer);
+		bitD->bitContainer = ZSTD_readLEST(bitD->ptr);
+		{
+			BYTE const lastByte = ((const BYTE *)srcBuffer)[srcSize - 1];
+			bitD->bitsConsumed = lastByte ? 8 - BIT_highbit32(lastByte) : 0; /* ensures bitsConsumed is always set */
+			if (lastByte == 0)
+				return ERROR(GENERIC); /* endMark not present */
+		}
+	} else {
+		bitD->start = (const char *)srcBuffer;
+		bitD->ptr = bitD->start;
+		bitD->bitContainer = *(const BYTE *)(bitD->start);
+		switch (srcSize) {
+		case 7: bitD->bitContainer += (size_t)(((const BYTE *)(srcBuffer))[6]) << (sizeof(bitD->bitContainer) * 8 - 16);
+		case 6: bitD->bitContainer += (size_t)(((const BYTE *)(srcBuffer))[5]) << (sizeof(bitD->bitContainer) * 8 - 24);
+		case 5: bitD->bitContainer += (size_t)(((const BYTE *)(srcBuffer))[4]) << (sizeof(bitD->bitContainer) * 8 - 32);
+		case 4: bitD->bitContainer += (size_t)(((const BYTE *)(srcBuffer))[3]) << 24;
+		case 3: bitD->bitContainer += (size_t)(((const BYTE *)(srcBuffer))[2]) << 16;
+		case 2: bitD->bitContainer += (size_t)(((const BYTE *)(srcBuffer))[1]) << 8;
+		default:;
+		}
+		{
+			BYTE const lastByte = ((const BYTE *)srcBuffer)[srcSize - 1];
+			bitD->bitsConsumed = lastByte ? 8 - BIT_highbit32(lastByte) : 0;
+			if (lastByte == 0)
+				return ERROR(GENERIC); /* endMark not present */
+		}
+		bitD->bitsConsumed += (U32)(sizeof(bitD->bitContainer) - srcSize) * 8;
+	}
+
+	return srcSize;
+}
+
+ZSTD_STATIC size_t BIT_getUpperBits(size_t bitContainer, U32 const start) { return bitContainer >> start; }
+
+ZSTD_STATIC size_t BIT_getMiddleBits(size_t bitContainer, U32 const start, U32 const nbBits) { return (bitContainer >> start) & BIT_mask[nbBits]; }
+
+ZSTD_STATIC size_t BIT_getLowerBits(size_t bitContainer, U32 const nbBits) { return bitContainer & BIT_mask[nbBits]; }
+
+/*! BIT_lookBits() :
+ *  Provides next n bits from local register.
+ *  local register is not modified.
+ *  On 32-bits, maxNbBits==24.
+ *  On 64-bits, maxNbBits==56.
+ *  @return : value extracted
+ */
+ZSTD_STATIC size_t BIT_lookBits(const BIT_DStream_t *bitD, U32 nbBits)
+{
+	U32 const bitMask = sizeof(bitD->bitContainer) * 8 - 1;
+	return ((bitD->bitContainer << (bitD->bitsConsumed & bitMask)) >> 1) >> ((bitMask - nbBits) & bitMask);
+}
+
+/*! BIT_lookBitsFast() :
+*   unsafe version; only works only if nbBits >= 1 */
+ZSTD_STATIC size_t BIT_lookBitsFast(const BIT_DStream_t *bitD, U32 nbBits)
+{
+	U32 const bitMask = sizeof(bitD->bitContainer) * 8 - 1;
+	return (bitD->bitContainer << (bitD->bitsConsumed & bitMask)) >> (((bitMask + 1) - nbBits) & bitMask);
+}
+
+ZSTD_STATIC void BIT_skipBits(BIT_DStream_t *bitD, U32 nbBits) { bitD->bitsConsumed += nbBits; }
+
+/*! BIT_readBits() :
+ *  Read (consume) next n bits from local register and update.
+ *  Pay attention to not read more than nbBits contained into local register.
+ *  @return : extracted value.
+ */
+ZSTD_STATIC size_t BIT_readBits(BIT_DStream_t *bitD, U32 nbBits)
+{
+	size_t const value = BIT_lookBits(bitD, nbBits);
+	BIT_skipBits(bitD, nbBits);
+	return value;
+}
+
+/*! BIT_readBitsFast() :
+*   unsafe version; only works only if nbBits >= 1 */
+ZSTD_STATIC size_t BIT_readBitsFast(BIT_DStream_t *bitD, U32 nbBits)
+{
+	size_t const value = BIT_lookBitsFast(bitD, nbBits);
+	BIT_skipBits(bitD, nbBits);
+	return value;
+}
+
+/*! BIT_reloadDStream() :
+*   Refill `bitD` from buffer previously set in BIT_initDStream() .
+*   This function is safe, it guarantees it will not read beyond src buffer.
+*   @return : status of `BIT_DStream_t` internal register.
+			  if status == BIT_DStream_unfinished, internal register is filled with >= (sizeof(bitD->bitContainer)*8 - 7) bits */
+ZSTD_STATIC BIT_DStream_status BIT_reloadDStream(BIT_DStream_t *bitD)
+{
+	if (bitD->bitsConsumed > (sizeof(bitD->bitContainer) * 8)) /* should not happen => corruption detected */
+		return BIT_DStream_overflow;
+
+	if (bitD->ptr >= bitD->start + sizeof(bitD->bitContainer)) {
+		bitD->ptr -= bitD->bitsConsumed >> 3;
+		bitD->bitsConsumed &= 7;
+		bitD->bitContainer = ZSTD_readLEST(bitD->ptr);
+		return BIT_DStream_unfinished;
+	}
+	if (bitD->ptr == bitD->start) {
+		if (bitD->bitsConsumed < sizeof(bitD->bitContainer) * 8)
+			return BIT_DStream_endOfBuffer;
+		return BIT_DStream_completed;
+	}
+	{
+		U32 nbBytes = bitD->bitsConsumed >> 3;
+		BIT_DStream_status result = BIT_DStream_unfinished;
+		if (bitD->ptr - nbBytes < bitD->start) {
+			nbBytes = (U32)(bitD->ptr - bitD->start); /* ptr > start */
+			result = BIT_DStream_endOfBuffer;
+		}
+		bitD->ptr -= nbBytes;
+		bitD->bitsConsumed -= nbBytes * 8;
+		bitD->bitContainer = ZSTD_readLEST(bitD->ptr); /* reminder : srcSize > sizeof(bitD) */
+		return result;
+	}
+}
+
+/*! BIT_endOfDStream() :
+*   @return Tells if DStream has exactly reached its end (all bits consumed).
+*/
+ZSTD_STATIC unsigned BIT_endOfDStream(const BIT_DStream_t *DStream)
+{
+	return ((DStream->ptr == DStream->start) && (DStream->bitsConsumed == sizeof(DStream->bitContainer) * 8));
+}
+
+#endif /* BITSTREAM_H_MODULE */
diff --git a/lib/zstd/compress.c b/lib/zstd/compress.c
new file mode 100644
index 000000000000..f9166cf4f7a9
--- /dev/null
+++ b/lib/zstd/compress.c
@@ -0,0 +1,3484 @@
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+/*-*************************************
+*  Dependencies
+***************************************/
+#include "fse.h"
+#include "huf.h"
+#include "mem.h"
+#include "zstd_internal.h" /* includes zstd.h */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h> /* memset */
+
+/*-*************************************
+*  Constants
+***************************************/
+static const U32 g_searchStrength = 8; /* control skip over incompressible data */
+#define HASH_READ_SIZE 8
+typedef enum { ZSTDcs_created = 0, ZSTDcs_init, ZSTDcs_ongoing, ZSTDcs_ending } ZSTD_compressionStage_e;
+
+/*-*************************************
+*  Helper functions
+***************************************/
+size_t ZSTD_compressBound(size_t srcSize) { return FSE_compressBound(srcSize) + 12; }
+
+/*-*************************************
+*  Sequence storage
+***************************************/
+static void ZSTD_resetSeqStore(seqStore_t *ssPtr)
+{
+	ssPtr->lit = ssPtr->litStart;
+	ssPtr->sequences = ssPtr->sequencesStart;
+	ssPtr->longLengthID = 0;
+}
+
+/*-*************************************
+*  Context memory management
+***************************************/
+struct ZSTD_CCtx_s {
+	const BYTE *nextSrc;  /* next block here to continue on curr prefix */
+	const BYTE *base;     /* All regular indexes relative to this position */
+	const BYTE *dictBase; /* extDict indexes relative to this position */
+	U32 dictLimit;	/* below that point, need extDict */
+	U32 lowLimit;	 /* below that point, no more data */
+	U32 nextToUpdate;     /* index from which to continue dictionary update */
+	U32 nextToUpdate3;    /* index from which to continue dictionary update */
+	U32 hashLog3;	 /* dispatch table : larger == faster, more memory */
+	U32 loadedDictEnd;    /* index of end of dictionary */
+	U32 forceWindow;      /* force back-references to respect limit of 1<<wLog, even for dictionary */
+	U32 forceRawDict;     /* Force loading dictionary in "content-only" mode (no header analysis) */
+	ZSTD_compressionStage_e stage;
+	U32 rep[ZSTD_REP_NUM];
+	U32 repToConfirm[ZSTD_REP_NUM];
+	U32 dictID;
+	ZSTD_parameters params;
+	void *workSpace;
+	size_t workSpaceSize;
+	size_t blockSize;
+	U64 frameContentSize;
+	struct xxh64_state xxhState;
+	ZSTD_customMem customMem;
+
+	seqStore_t seqStore; /* sequences storage ptrs */
+	U32 *hashTable;
+	U32 *hashTable3;
+	U32 *chainTable;
+	HUF_CElt *hufTable;
+	U32 flagStaticTables;
+	HUF_repeat flagStaticHufTable;
+	FSE_CTable offcodeCTable[FSE_CTABLE_SIZE_U32(OffFSELog, MaxOff)];
+	FSE_CTable matchlengthCTable[FSE_CTABLE_SIZE_U32(MLFSELog, MaxML)];
+	FSE_CTable litlengthCTable[FSE_CTABLE_SIZE_U32(LLFSELog, MaxLL)];
+	unsigned tmpCounters[HUF_COMPRESS_WORKSPACE_SIZE_U32];
+};
+
+size_t ZSTD_CCtxWorkspaceBound(ZSTD_compressionParameters cParams)
+{
+	size_t const blockSize = MIN(ZSTD_BLOCKSIZE_ABSOLUTEMAX, (size_t)1 << cParams.windowLog);
+	U32 const divider = (cParams.searchLength == 3) ? 3 : 4;
+	size_t const maxNbSeq = blockSize / divider;
+	size_t const tokenSpace = blockSize + 11 * maxNbSeq;
+	size_t const chainSize = (cParams.strategy == ZSTD_fast) ? 0 : (1 << cParams.chainLog);
+	size_t const hSize = ((size_t)1) << cParams.hashLog;
+	U32 const hashLog3 = (cParams.searchLength > 3) ? 0 : MIN(ZSTD_HASHLOG3_MAX, cParams.windowLog);
+	size_t const h3Size = ((size_t)1) << hashLog3;
+	size_t const tableSpace = (chainSize + hSize + h3Size) * sizeof(U32);
+	size_t const optSpace =
+	    ((MaxML + 1) + (MaxLL + 1) + (MaxOff + 1) + (1 << Litbits)) * sizeof(U32) + (ZSTD_OPT_NUM + 1) * (sizeof(ZSTD_match_t) + sizeof(ZSTD_optimal_t));
+	size_t const workspaceSize = tableSpace + (256 * sizeof(U32)) /* huffTable */ + tokenSpace +
+				     (((cParams.strategy == ZSTD_btopt) || (cParams.strategy == ZSTD_btopt2)) ? optSpace : 0);
+
+	return ZSTD_ALIGN(sizeof(ZSTD_stack)) + ZSTD_ALIGN(sizeof(ZSTD_CCtx)) + ZSTD_ALIGN(workspaceSize);
+}
+
+static ZSTD_CCtx *ZSTD_createCCtx_advanced(ZSTD_customMem customMem)
+{
+	ZSTD_CCtx *cctx;
+	if (!customMem.customAlloc || !customMem.customFree)
+		return NULL;
+	cctx = (ZSTD_CCtx *)ZSTD_malloc(sizeof(ZSTD_CCtx), customMem);
+	if (!cctx)
+		return NULL;
+	memset(cctx, 0, sizeof(ZSTD_CCtx));
+	cctx->customMem = customMem;
+	return cctx;
+}
+
+ZSTD_CCtx *ZSTD_initCCtx(void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem const stackMem = ZSTD_initStack(workspace, workspaceSize);
+	ZSTD_CCtx *cctx = ZSTD_createCCtx_advanced(stackMem);
+	if (cctx) {
+		cctx->workSpace = ZSTD_stackAllocAll(cctx->customMem.opaque, &cctx->workSpaceSize);
+	}
+	return cctx;
+}
+
+size_t ZSTD_freeCCtx(ZSTD_CCtx *cctx)
+{
+	if (cctx == NULL)
+		return 0; /* support free on NULL */
+	ZSTD_free(cctx->workSpace, cctx->customMem);
+	ZSTD_free(cctx, cctx->customMem);
+	return 0; /* reserved as a potential error code in the future */
+}
+
+const seqStore_t *ZSTD_getSeqStore(const ZSTD_CCtx *ctx) /* hidden interface */ { return &(ctx->seqStore); }
+
+static ZSTD_parameters ZSTD_getParamsFromCCtx(const ZSTD_CCtx *cctx) { return cctx->params; }
+
+/** ZSTD_checkParams() :
+	ensure param values remain within authorized range.
+	@return : 0, or an error code if one value is beyond authorized range */
+size_t ZSTD_checkCParams(ZSTD_compressionParameters cParams)
+{
+#define CLAMPCHECK(val, min, max)                                       \
+	{                                                               \
+		if ((val < min) | (val > max))                          \
+			return ERROR(compressionParameter_unsupported); \
+	}
+	CLAMPCHECK(cParams.windowLog, ZSTD_WINDOWLOG_MIN, ZSTD_WINDOWLOG_MAX);
+	CLAMPCHECK(cParams.chainLog, ZSTD_CHAINLOG_MIN, ZSTD_CHAINLOG_MAX);
+	CLAMPCHECK(cParams.hashLog, ZSTD_HASHLOG_MIN, ZSTD_HASHLOG_MAX);
+	CLAMPCHECK(cParams.searchLog, ZSTD_SEARCHLOG_MIN, ZSTD_SEARCHLOG_MAX);
+	CLAMPCHECK(cParams.searchLength, ZSTD_SEARCHLENGTH_MIN, ZSTD_SEARCHLENGTH_MAX);
+	CLAMPCHECK(cParams.targetLength, ZSTD_TARGETLENGTH_MIN, ZSTD_TARGETLENGTH_MAX);
+	if ((U32)(cParams.strategy) > (U32)ZSTD_btopt2)
+		return ERROR(compressionParameter_unsupported);
+	return 0;
+}
+
+/** ZSTD_cycleLog() :
+ *  condition for correct operation : hashLog > 1 */
+static U32 ZSTD_cycleLog(U32 hashLog, ZSTD_strategy strat)
+{
+	U32 const btScale = ((U32)strat >= (U32)ZSTD_btlazy2);
+	return hashLog - btScale;
+}
+
+/** ZSTD_adjustCParams() :
+	optimize `cPar` for a given input (`srcSize` and `dictSize`).
+	mostly downsizing to reduce memory consumption and initialization.
+	Both `srcSize` and `dictSize` are optional (use 0 if unknown),
+	but if both are 0, no optimization can be done.
+	Note : cPar is considered validated at this stage. Use ZSTD_checkParams() to ensure that. */
+ZSTD_compressionParameters ZSTD_adjustCParams(ZSTD_compressionParameters cPar, unsigned long long srcSize, size_t dictSize)
+{
+	if (srcSize + dictSize == 0)
+		return cPar; /* no size information available : no adjustment */
+
+	/* resize params, to use less memory when necessary */
+	{
+		U32 const minSrcSize = (srcSize == 0) ? 500 : 0;
+		U64 const rSize = srcSize + dictSize + minSrcSize;
+		if (rSize < ((U64)1 << ZSTD_WINDOWLOG_MAX)) {
+			U32 const srcLog = MAX(ZSTD_HASHLOG_MIN, ZSTD_highbit32((U32)(rSize)-1) + 1);
+			if (cPar.windowLog > srcLog)
+				cPar.windowLog = srcLog;
+		}
+	}
+	if (cPar.hashLog > cPar.windowLog)
+		cPar.hashLog = cPar.windowLog;
+	{
+		U32 const cycleLog = ZSTD_cycleLog(cPar.chainLog, cPar.strategy);
+		if (cycleLog > cPar.windowLog)
+			cPar.chainLog -= (cycleLog - cPar.windowLog);
+	}
+
+	if (cPar.windowLog < ZSTD_WINDOWLOG_ABSOLUTEMIN)
+		cPar.windowLog = ZSTD_WINDOWLOG_ABSOLUTEMIN; /* required for frame header */
+
+	return cPar;
+}
+
+static U32 ZSTD_equivalentParams(ZSTD_parameters param1, ZSTD_parameters param2)
+{
+	return (param1.cParams.hashLog == param2.cParams.hashLog) & (param1.cParams.chainLog == param2.cParams.chainLog) &
+	       (param1.cParams.strategy == param2.cParams.strategy) & ((param1.cParams.searchLength == 3) == (param2.cParams.searchLength == 3));
+}
+
+/*! ZSTD_continueCCtx() :
+	reuse CCtx without reset (note : requires no dictionary) */
+static size_t ZSTD_continueCCtx(ZSTD_CCtx *cctx, ZSTD_parameters params, U64 frameContentSize)
+{
+	U32 const end = (U32)(cctx->nextSrc - cctx->base);
+	cctx->params = params;
+	cctx->frameContentSize = frameContentSize;
+	cctx->lowLimit = end;
+	cctx->dictLimit = end;
+	cctx->nextToUpdate = end + 1;
+	cctx->stage = ZSTDcs_init;
+	cctx->dictID = 0;
+	cctx->loadedDictEnd = 0;
+	{
+		int i;
+		for (i = 0; i < ZSTD_REP_NUM; i++)
+			cctx->rep[i] = repStartValue[i];
+	}
+	cctx->seqStore.litLengthSum = 0; /* force reset of btopt stats */
+	xxh64_reset(&cctx->xxhState, 0);
+	return 0;
+}
+
+typedef enum { ZSTDcrp_continue, ZSTDcrp_noMemset, ZSTDcrp_fullReset } ZSTD_compResetPolicy_e;
+
+/*! ZSTD_resetCCtx_advanced() :
+	note : `params` must be validated */
+static size_t ZSTD_resetCCtx_advanced(ZSTD_CCtx *zc, ZSTD_parameters params, U64 frameContentSize, ZSTD_compResetPolicy_e const crp)
+{
+	if (crp == ZSTDcrp_continue)
+		if (ZSTD_equivalentParams(params, zc->params)) {
+			zc->flagStaticTables = 0;
+			zc->flagStaticHufTable = HUF_repeat_none;
+			return ZSTD_continueCCtx(zc, params, frameContentSize);
+		}
+
+	{
+		size_t const blockSize = MIN(ZSTD_BLOCKSIZE_ABSOLUTEMAX, (size_t)1 << params.cParams.windowLog);
+		U32 const divider = (params.cParams.searchLength == 3) ? 3 : 4;
+		size_t const maxNbSeq = blockSize / divider;
+		size_t const tokenSpace = blockSize + 11 * maxNbSeq;
+		size_t const chainSize = (params.cParams.strategy == ZSTD_fast) ? 0 : (1 << params.cParams.chainLog);
+		size_t const hSize = ((size_t)1) << params.cParams.hashLog;
+		U32 const hashLog3 = (params.cParams.searchLength > 3) ? 0 : MIN(ZSTD_HASHLOG3_MAX, params.cParams.windowLog);
+		size_t const h3Size = ((size_t)1) << hashLog3;
+		size_t const tableSpace = (chainSize + hSize + h3Size) * sizeof(U32);
+		void *ptr;
+
+		/* Check if workSpace is large enough, alloc a new one if needed */
+		{
+			size_t const optSpace = ((MaxML + 1) + (MaxLL + 1) + (MaxOff + 1) + (1 << Litbits)) * sizeof(U32) +
+						(ZSTD_OPT_NUM + 1) * (sizeof(ZSTD_match_t) + sizeof(ZSTD_optimal_t));
+			size_t const neededSpace = tableSpace + (256 * sizeof(U32)) /* huffTable */ + tokenSpace +
+						   (((params.cParams.strategy == ZSTD_btopt) || (params.cParams.strategy == ZSTD_btopt2)) ? optSpace : 0);
+			if (zc->workSpaceSize < neededSpace) {
+				ZSTD_free(zc->workSpace, zc->customMem);
+				zc->workSpace = ZSTD_malloc(neededSpace, zc->customMem);
+				if (zc->workSpace == NULL)
+					return ERROR(memory_allocation);
+				zc->workSpaceSize = neededSpace;
+			}
+		}
+
+		if (crp != ZSTDcrp_noMemset)
+			memset(zc->workSpace, 0, tableSpace); /* reset tables only */
+		xxh64_reset(&zc->xxhState, 0);
+		zc->hashLog3 = hashLog3;
+		zc->hashTable = (U32 *)(zc->workSpace);
+		zc->chainTable = zc->hashTable + hSize;
+		zc->hashTable3 = zc->chainTable + chainSize;
+		ptr = zc->hashTable3 + h3Size;
+		zc->hufTable = (HUF_CElt *)ptr;
+		zc->flagStaticTables = 0;
+		zc->flagStaticHufTable = HUF_repeat_none;
+		ptr = ((U32 *)ptr) + 256; /* note : HUF_CElt* is incomplete type, size is simulated using U32 */
+
+		zc->nextToUpdate = 1;
+		zc->nextSrc = NULL;
+		zc->base = NULL;
+		zc->dictBase = NULL;
+		zc->dictLimit = 0;
+		zc->lowLimit = 0;
+		zc->params = params;
+		zc->blockSize = blockSize;
+		zc->frameContentSize = frameContentSize;
+		{
+			int i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				zc->rep[i] = repStartValue[i];
+		}
+
+		if ((params.cParams.strategy == ZSTD_btopt) || (params.cParams.strategy == ZSTD_btopt2)) {
+			zc->seqStore.litFreq = (U32 *)ptr;
+			zc->seqStore.litLengthFreq = zc->seqStore.litFreq + (1 << Litbits);
+			zc->seqStore.matchLengthFreq = zc->seqStore.litLengthFreq + (MaxLL + 1);
+			zc->seqStore.offCodeFreq = zc->seqStore.matchLengthFreq + (MaxML + 1);
+			ptr = zc->seqStore.offCodeFreq + (MaxOff + 1);
+			zc->seqStore.matchTable = (ZSTD_match_t *)ptr;
+			ptr = zc->seqStore.matchTable + ZSTD_OPT_NUM + 1;
+			zc->seqStore.priceTable = (ZSTD_optimal_t *)ptr;
+			ptr = zc->seqStore.priceTable + ZSTD_OPT_NUM + 1;
+			zc->seqStore.litLengthSum = 0;
+		}
+		zc->seqStore.sequencesStart = (seqDef *)ptr;
+		ptr = zc->seqStore.sequencesStart + maxNbSeq;
+		zc->seqStore.llCode = (BYTE *)ptr;
+		zc->seqStore.mlCode = zc->seqStore.llCode + maxNbSeq;
+		zc->seqStore.ofCode = zc->seqStore.mlCode + maxNbSeq;
+		zc->seqStore.litStart = zc->seqStore.ofCode + maxNbSeq;
+
+		zc->stage = ZSTDcs_init;
+		zc->dictID = 0;
+		zc->loadedDictEnd = 0;
+
+		return 0;
+	}
+}
+
+/* ZSTD_invalidateRepCodes() :
+ * ensures next compression will not use repcodes from previous block.
+ * Note : only works with regular variant;
+ *        do not use with extDict variant ! */
+void ZSTD_invalidateRepCodes(ZSTD_CCtx *cctx)
+{
+	int i;
+	for (i = 0; i < ZSTD_REP_NUM; i++)
+		cctx->rep[i] = 0;
+}
+
+/*! ZSTD_copyCCtx() :
+*   Duplicate an existing context `srcCCtx` into another one `dstCCtx`.
+*   Only works during stage ZSTDcs_init (i.e. after creation, but before first call to ZSTD_compressContinue()).
+*   @return : 0, or an error code */
+size_t ZSTD_copyCCtx(ZSTD_CCtx *dstCCtx, const ZSTD_CCtx *srcCCtx, unsigned long long pledgedSrcSize)
+{
+	if (srcCCtx->stage != ZSTDcs_init)
+		return ERROR(stage_wrong);
+
+	memcpy(&dstCCtx->customMem, &srcCCtx->customMem, sizeof(ZSTD_customMem));
+	{
+		ZSTD_parameters params = srcCCtx->params;
+		params.fParams.contentSizeFlag = (pledgedSrcSize > 0);
+		ZSTD_resetCCtx_advanced(dstCCtx, params, pledgedSrcSize, ZSTDcrp_noMemset);
+	}
+
+	/* copy tables */
+	{
+		size_t const chainSize = (srcCCtx->params.cParams.strategy == ZSTD_fast) ? 0 : (1 << srcCCtx->params.cParams.chainLog);
+		size_t const hSize = ((size_t)1) << srcCCtx->params.cParams.hashLog;
+		size_t const h3Size = (size_t)1 << srcCCtx->hashLog3;
+		size_t const tableSpace = (chainSize + hSize + h3Size) * sizeof(U32);
+		memcpy(dstCCtx->workSpace, srcCCtx->workSpace, tableSpace);
+	}
+
+	/* copy dictionary offsets */
+	dstCCtx->nextToUpdate = srcCCtx->nextToUpdate;
+	dstCCtx->nextToUpdate3 = srcCCtx->nextToUpdate3;
+	dstCCtx->nextSrc = srcCCtx->nextSrc;
+	dstCCtx->base = srcCCtx->base;
+	dstCCtx->dictBase = srcCCtx->dictBase;
+	dstCCtx->dictLimit = srcCCtx->dictLimit;
+	dstCCtx->lowLimit = srcCCtx->lowLimit;
+	dstCCtx->loadedDictEnd = srcCCtx->loadedDictEnd;
+	dstCCtx->dictID = srcCCtx->dictID;
+
+	/* copy entropy tables */
+	dstCCtx->flagStaticTables = srcCCtx->flagStaticTables;
+	dstCCtx->flagStaticHufTable = srcCCtx->flagStaticHufTable;
+	if (srcCCtx->flagStaticTables) {
+		memcpy(dstCCtx->litlengthCTable, srcCCtx->litlengthCTable, sizeof(dstCCtx->litlengthCTable));
+		memcpy(dstCCtx->matchlengthCTable, srcCCtx->matchlengthCTable, sizeof(dstCCtx->matchlengthCTable));
+		memcpy(dstCCtx->offcodeCTable, srcCCtx->offcodeCTable, sizeof(dstCCtx->offcodeCTable));
+	}
+	if (srcCCtx->flagStaticHufTable) {
+		memcpy(dstCCtx->hufTable, srcCCtx->hufTable, 256 * 4);
+	}
+
+	return 0;
+}
+
+/*! ZSTD_reduceTable() :
+*   reduce table indexes by `reducerValue` */
+static void ZSTD_reduceTable(U32 *const table, U32 const size, U32 const reducerValue)
+{
+	U32 u;
+	for (u = 0; u < size; u++) {
+		if (table[u] < reducerValue)
+			table[u] = 0;
+		else
+			table[u] -= reducerValue;
+	}
+}
+
+/*! ZSTD_reduceIndex() :
+*   rescale all indexes to avoid future overflow (indexes are U32) */
+static void ZSTD_reduceIndex(ZSTD_CCtx *zc, const U32 reducerValue)
+{
+	{
+		U32 const hSize = 1 << zc->params.cParams.hashLog;
+		ZSTD_reduceTable(zc->hashTable, hSize, reducerValue);
+	}
+
+	{
+		U32 const chainSize = (zc->params.cParams.strategy == ZSTD_fast) ? 0 : (1 << zc->params.cParams.chainLog);
+		ZSTD_reduceTable(zc->chainTable, chainSize, reducerValue);
+	}
+
+	{
+		U32 const h3Size = (zc->hashLog3) ? 1 << zc->hashLog3 : 0;
+		ZSTD_reduceTable(zc->hashTable3, h3Size, reducerValue);
+	}
+}
+
+/*-*******************************************************
+*  Block entropic compression
+*********************************************************/
+
+/* See doc/zstd_compression_format.md for detailed format description */
+
+size_t ZSTD_noCompressBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	if (srcSize + ZSTD_blockHeaderSize > dstCapacity)
+		return ERROR(dstSize_tooSmall);
+	memcpy((BYTE *)dst + ZSTD_blockHeaderSize, src, srcSize);
+	ZSTD_writeLE24(dst, (U32)(srcSize << 2) + (U32)bt_raw);
+	return ZSTD_blockHeaderSize + srcSize;
+}
+
+static size_t ZSTD_noCompressLiterals(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	BYTE *const ostart = (BYTE * const)dst;
+	U32 const flSize = 1 + (srcSize > 31) + (srcSize > 4095);
+
+	if (srcSize + flSize > dstCapacity)
+		return ERROR(dstSize_tooSmall);
+
+	switch (flSize) {
+	case 1: /* 2 - 1 - 5 */ ostart[0] = (BYTE)((U32)set_basic + (srcSize << 3)); break;
+	case 2: /* 2 - 2 - 12 */ ZSTD_writeLE16(ostart, (U16)((U32)set_basic + (1 << 2) + (srcSize << 4))); break;
+	default: /*note : should not be necessary : flSize is within {1,2,3} */
+	case 3: /* 2 - 2 - 20 */ ZSTD_writeLE32(ostart, (U32)((U32)set_basic + (3 << 2) + (srcSize << 4))); break;
+	}
+
+	memcpy(ostart + flSize, src, srcSize);
+	return srcSize + flSize;
+}
+
+static size_t ZSTD_compressRleLiteralsBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	BYTE *const ostart = (BYTE * const)dst;
+	U32 const flSize = 1 + (srcSize > 31) + (srcSize > 4095);
+
+	(void)dstCapacity; /* dstCapacity already guaranteed to be >=4, hence large enough */
+
+	switch (flSize) {
+	case 1: /* 2 - 1 - 5 */ ostart[0] = (BYTE)((U32)set_rle + (srcSize << 3)); break;
+	case 2: /* 2 - 2 - 12 */ ZSTD_writeLE16(ostart, (U16)((U32)set_rle + (1 << 2) + (srcSize << 4))); break;
+	default: /*note : should not be necessary : flSize is necessarily within {1,2,3} */
+	case 3: /* 2 - 2 - 20 */ ZSTD_writeLE32(ostart, (U32)((U32)set_rle + (3 << 2) + (srcSize << 4))); break;
+	}
+
+	ostart[flSize] = *(const BYTE *)src;
+	return flSize + 1;
+}
+
+static size_t ZSTD_minGain(size_t srcSize) { return (srcSize >> 6) + 2; }
+
+static size_t ZSTD_compressLiterals(ZSTD_CCtx *zc, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	size_t const minGain = ZSTD_minGain(srcSize);
+	size_t const lhSize = 3 + (srcSize >= 1 KB) + (srcSize >= 16 KB);
+	BYTE *const ostart = (BYTE *)dst;
+	U32 singleStream = srcSize < 256;
+	symbolEncodingType_e hType = set_compressed;
+	size_t cLitSize;
+
+/* small ? don't even attempt compression (speed opt) */
+#define LITERAL_NOENTROPY 63
+	{
+		size_t const minLitSize = zc->flagStaticHufTable == HUF_repeat_valid ? 6 : LITERAL_NOENTROPY;
+		if (srcSize <= minLitSize)
+			return ZSTD_noCompressLiterals(dst, dstCapacity, src, srcSize);
+	}
+
+	if (dstCapacity < lhSize + 1)
+		return ERROR(dstSize_tooSmall); /* not enough space for compression */
+	{
+		HUF_repeat repeat = zc->flagStaticHufTable;
+		int const preferRepeat = zc->params.cParams.strategy < ZSTD_lazy ? srcSize <= 1024 : 0;
+		if (repeat == HUF_repeat_valid && lhSize == 3)
+			singleStream = 1;
+		cLitSize = singleStream ? HUF_compress1X_repeat(ostart + lhSize, dstCapacity - lhSize, src, srcSize, 255, 11, zc->tmpCounters,
+								sizeof(zc->tmpCounters), zc->hufTable, &repeat, preferRepeat)
+					: HUF_compress4X_repeat(ostart + lhSize, dstCapacity - lhSize, src, srcSize, 255, 11, zc->tmpCounters,
+								sizeof(zc->tmpCounters), zc->hufTable, &repeat, preferRepeat);
+		if (repeat != HUF_repeat_none) {
+			hType = set_repeat;
+		} /* reused the existing table */
+		else {
+			zc->flagStaticHufTable = HUF_repeat_check;
+		} /* now have a table to reuse */
+	}
+
+	if ((cLitSize == 0) | (cLitSize >= srcSize - minGain)) {
+		zc->flagStaticHufTable = HUF_repeat_none;
+		return ZSTD_noCompressLiterals(dst, dstCapacity, src, srcSize);
+	}
+	if (cLitSize == 1) {
+		zc->flagStaticHufTable = HUF_repeat_none;
+		return ZSTD_compressRleLiteralsBlock(dst, dstCapacity, src, srcSize);
+	}
+
+	/* Build header */
+	switch (lhSize) {
+	case 3: /* 2 - 2 - 10 - 10 */
+	{
+		U32 const lhc = hType + ((!singleStream) << 2) + ((U32)srcSize << 4) + ((U32)cLitSize << 14);
+		ZSTD_writeLE24(ostart, lhc);
+		break;
+	}
+	case 4: /* 2 - 2 - 14 - 14 */
+	{
+		U32 const lhc = hType + (2 << 2) + ((U32)srcSize << 4) + ((U32)cLitSize << 18);
+		ZSTD_writeLE32(ostart, lhc);
+		break;
+	}
+	default: /* should not be necessary, lhSize is only {3,4,5} */
+	case 5:  /* 2 - 2 - 18 - 18 */
+	{
+		U32 const lhc = hType + (3 << 2) + ((U32)srcSize << 4) + ((U32)cLitSize << 22);
+		ZSTD_writeLE32(ostart, lhc);
+		ostart[4] = (BYTE)(cLitSize >> 10);
+		break;
+	}
+	}
+	return lhSize + cLitSize;
+}
+
+static const BYTE LL_Code[64] = {0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15, 16, 16, 17, 17, 18, 18,
+				 19, 19, 20, 20, 20, 20, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23,
+				 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24};
+
+static const BYTE ML_Code[128] = {0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
+				  26, 27, 28, 29, 30, 31, 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 36, 36, 37, 37, 37, 37, 38, 38, 38, 38,
+				  38, 38, 38, 38, 39, 39, 39, 39, 39, 39, 39, 39, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40,
+				  40, 40, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 42, 42, 42, 42, 42, 42, 42, 42,
+				  42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42};
+
+void ZSTD_seqToCodes(const seqStore_t *seqStorePtr)
+{
+	BYTE const LL_deltaCode = 19;
+	BYTE const ML_deltaCode = 36;
+	const seqDef *const sequences = seqStorePtr->sequencesStart;
+	BYTE *const llCodeTable = seqStorePtr->llCode;
+	BYTE *const ofCodeTable = seqStorePtr->ofCode;
+	BYTE *const mlCodeTable = seqStorePtr->mlCode;
+	U32 const nbSeq = (U32)(seqStorePtr->sequences - seqStorePtr->sequencesStart);
+	U32 u;
+	for (u = 0; u < nbSeq; u++) {
+		U32 const llv = sequences[u].litLength;
+		U32 const mlv = sequences[u].matchLength;
+		llCodeTable[u] = (llv > 63) ? (BYTE)ZSTD_highbit32(llv) + LL_deltaCode : LL_Code[llv];
+		ofCodeTable[u] = (BYTE)ZSTD_highbit32(sequences[u].offset);
+		mlCodeTable[u] = (mlv > 127) ? (BYTE)ZSTD_highbit32(mlv) + ML_deltaCode : ML_Code[mlv];
+	}
+	if (seqStorePtr->longLengthID == 1)
+		llCodeTable[seqStorePtr->longLengthPos] = MaxLL;
+	if (seqStorePtr->longLengthID == 2)
+		mlCodeTable[seqStorePtr->longLengthPos] = MaxML;
+}
+
+ZSTD_STATIC size_t ZSTD_compressSequences_internal(ZSTD_CCtx *zc, void *dst, size_t dstCapacity)
+{
+	const int longOffsets = zc->params.cParams.windowLog > STREAM_ACCUMULATOR_MIN;
+	const seqStore_t *seqStorePtr = &(zc->seqStore);
+	FSE_CTable *CTable_LitLength = zc->litlengthCTable;
+	FSE_CTable *CTable_OffsetBits = zc->offcodeCTable;
+	FSE_CTable *CTable_MatchLength = zc->matchlengthCTable;
+	U32 LLtype, Offtype, MLtype; /* compressed, raw or rle */
+	const seqDef *const sequences = seqStorePtr->sequencesStart;
+	const BYTE *const ofCodeTable = seqStorePtr->ofCode;
+	const BYTE *const llCodeTable = seqStorePtr->llCode;
+	const BYTE *const mlCodeTable = seqStorePtr->mlCode;
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *const oend = ostart + dstCapacity;
+	BYTE *op = ostart;
+	size_t const nbSeq = seqStorePtr->sequences - seqStorePtr->sequencesStart;
+	BYTE *seqHead;
+
+	U32 *count;
+	S16 *norm;
+	U32 *workspace;
+	size_t workspaceSize = sizeof(zc->tmpCounters);
+	{
+		size_t spaceUsed32 = 0;
+		count = (U32 *)zc->tmpCounters + spaceUsed32;
+		spaceUsed32 += MaxSeq + 1;
+		norm = (S16 *)((U32 *)zc->tmpCounters + spaceUsed32);
+		spaceUsed32 += ALIGN(sizeof(S16) * (MaxSeq + 1), sizeof(U32)) >> 2;
+
+		workspace = (U32 *)zc->tmpCounters + spaceUsed32;
+		workspaceSize -= (spaceUsed32 << 2);
+	}
+
+	/* Compress literals */
+	{
+		const BYTE *const literals = seqStorePtr->litStart;
+		size_t const litSize = seqStorePtr->lit - literals;
+		size_t const cSize = ZSTD_compressLiterals(zc, op, dstCapacity, literals, litSize);
+		if (ZSTD_isError(cSize))
+			return cSize;
+		op += cSize;
+	}
+
+	/* Sequences Header */
+	if ((oend - op) < 3 /*max nbSeq Size*/ + 1 /*seqHead */)
+		return ERROR(dstSize_tooSmall);
+	if (nbSeq < 0x7F)
+		*op++ = (BYTE)nbSeq;
+	else if (nbSeq < LONGNBSEQ)
+		op[0] = (BYTE)((nbSeq >> 8) + 0x80), op[1] = (BYTE)nbSeq, op += 2;
+	else
+		op[0] = 0xFF, ZSTD_writeLE16(op + 1, (U16)(nbSeq - LONGNBSEQ)), op += 3;
+	if (nbSeq == 0)
+		return op - ostart;
+
+	/* seqHead : flags for FSE encoding type */
+	seqHead = op++;
+
+#define MIN_SEQ_FOR_DYNAMIC_FSE 64
+#define MAX_SEQ_FOR_STATIC_FSE 1000
+
+	/* convert length/distances into codes */
+	ZSTD_seqToCodes(seqStorePtr);
+
+	/* CTable for Literal Lengths */
+	{
+		U32 max = MaxLL;
+		size_t const mostFrequent = FSE_countFast_wksp(count, &max, llCodeTable, nbSeq, workspace);
+		if ((mostFrequent == nbSeq) && (nbSeq > 2)) {
+			*op++ = llCodeTable[0];
+			FSE_buildCTable_rle(CTable_LitLength, (BYTE)max);
+			LLtype = set_rle;
+		} else if ((zc->flagStaticTables) && (nbSeq < MAX_SEQ_FOR_STATIC_FSE)) {
+			LLtype = set_repeat;
+		} else if ((nbSeq < MIN_SEQ_FOR_DYNAMIC_FSE) || (mostFrequent < (nbSeq >> (LL_defaultNormLog - 1)))) {
+			FSE_buildCTable_wksp(CTable_LitLength, LL_defaultNorm, MaxLL, LL_defaultNormLog, workspace, workspaceSize);
+			LLtype = set_basic;
+		} else {
+			size_t nbSeq_1 = nbSeq;
+			const U32 tableLog = FSE_optimalTableLog(LLFSELog, nbSeq, max);
+			if (count[llCodeTable[nbSeq - 1]] > 1) {
+				count[llCodeTable[nbSeq - 1]]--;
+				nbSeq_1--;
+			}
+			FSE_normalizeCount(norm, tableLog, count, nbSeq_1, max);
+			{
+				size_t const NCountSize = FSE_writeNCount(op, oend - op, norm, max, tableLog); /* overflow protected */
+				if (FSE_isError(NCountSize))
+					return NCountSize;
+				op += NCountSize;
+			}
+			FSE_buildCTable_wksp(CTable_LitLength, norm, max, tableLog, workspace, workspaceSize);
+			LLtype = set_compressed;
+		}
+	}
+
+	/* CTable for Offsets */
+	{
+		U32 max = MaxOff;
+		size_t const mostFrequent = FSE_countFast_wksp(count, &max, ofCodeTable, nbSeq, workspace);
+		if ((mostFrequent == nbSeq) && (nbSeq > 2)) {
+			*op++ = ofCodeTable[0];
+			FSE_buildCTable_rle(CTable_OffsetBits, (BYTE)max);
+			Offtype = set_rle;
+		} else if ((zc->flagStaticTables) && (nbSeq < MAX_SEQ_FOR_STATIC_FSE)) {
+			Offtype = set_repeat;
+		} else if ((nbSeq < MIN_SEQ_FOR_DYNAMIC_FSE) || (mostFrequent < (nbSeq >> (OF_defaultNormLog - 1)))) {
+			FSE_buildCTable_wksp(CTable_OffsetBits, OF_defaultNorm, MaxOff, OF_defaultNormLog, workspace, workspaceSize);
+			Offtype = set_basic;
+		} else {
+			size_t nbSeq_1 = nbSeq;
+			const U32 tableLog = FSE_optimalTableLog(OffFSELog, nbSeq, max);
+			if (count[ofCodeTable[nbSeq - 1]] > 1) {
+				count[ofCodeTable[nbSeq - 1]]--;
+				nbSeq_1--;
+			}
+			FSE_normalizeCount(norm, tableLog, count, nbSeq_1, max);
+			{
+				size_t const NCountSize = FSE_writeNCount(op, oend - op, norm, max, tableLog); /* overflow protected */
+				if (FSE_isError(NCountSize))
+					return NCountSize;
+				op += NCountSize;
+			}
+			FSE_buildCTable_wksp(CTable_OffsetBits, norm, max, tableLog, workspace, workspaceSize);
+			Offtype = set_compressed;
+		}
+	}
+
+	/* CTable for MatchLengths */
+	{
+		U32 max = MaxML;
+		size_t const mostFrequent = FSE_countFast_wksp(count, &max, mlCodeTable, nbSeq, workspace);
+		if ((mostFrequent == nbSeq) && (nbSeq > 2)) {
+			*op++ = *mlCodeTable;
+			FSE_buildCTable_rle(CTable_MatchLength, (BYTE)max);
+			MLtype = set_rle;
+		} else if ((zc->flagStaticTables) && (nbSeq < MAX_SEQ_FOR_STATIC_FSE)) {
+			MLtype = set_repeat;
+		} else if ((nbSeq < MIN_SEQ_FOR_DYNAMIC_FSE) || (mostFrequent < (nbSeq >> (ML_defaultNormLog - 1)))) {
+			FSE_buildCTable_wksp(CTable_MatchLength, ML_defaultNorm, MaxML, ML_defaultNormLog, workspace, workspaceSize);
+			MLtype = set_basic;
+		} else {
+			size_t nbSeq_1 = nbSeq;
+			const U32 tableLog = FSE_optimalTableLog(MLFSELog, nbSeq, max);
+			if (count[mlCodeTable[nbSeq - 1]] > 1) {
+				count[mlCodeTable[nbSeq - 1]]--;
+				nbSeq_1--;
+			}
+			FSE_normalizeCount(norm, tableLog, count, nbSeq_1, max);
+			{
+				size_t const NCountSize = FSE_writeNCount(op, oend - op, norm, max, tableLog); /* overflow protected */
+				if (FSE_isError(NCountSize))
+					return NCountSize;
+				op += NCountSize;
+			}
+			FSE_buildCTable_wksp(CTable_MatchLength, norm, max, tableLog, workspace, workspaceSize);
+			MLtype = set_compressed;
+		}
+	}
+
+	*seqHead = (BYTE)((LLtype << 6) + (Offtype << 4) + (MLtype << 2));
+	zc->flagStaticTables = 0;
+
+	/* Encoding Sequences */
+	{
+		BIT_CStream_t blockStream;
+		FSE_CState_t stateMatchLength;
+		FSE_CState_t stateOffsetBits;
+		FSE_CState_t stateLitLength;
+
+		CHECK_E(BIT_initCStream(&blockStream, op, oend - op), dstSize_tooSmall); /* not enough space remaining */
+
+		/* first symbols */
+		FSE_initCState2(&stateMatchLength, CTable_MatchLength, mlCodeTable[nbSeq - 1]);
+		FSE_initCState2(&stateOffsetBits, CTable_OffsetBits, ofCodeTable[nbSeq - 1]);
+		FSE_initCState2(&stateLitLength, CTable_LitLength, llCodeTable[nbSeq - 1]);
+		BIT_addBits(&blockStream, sequences[nbSeq - 1].litLength, LL_bits[llCodeTable[nbSeq - 1]]);
+		if (ZSTD_32bits())
+			BIT_flushBits(&blockStream);
+		BIT_addBits(&blockStream, sequences[nbSeq - 1].matchLength, ML_bits[mlCodeTable[nbSeq - 1]]);
+		if (ZSTD_32bits())
+			BIT_flushBits(&blockStream);
+		if (longOffsets) {
+			U32 const ofBits = ofCodeTable[nbSeq - 1];
+			int const extraBits = ofBits - MIN(ofBits, STREAM_ACCUMULATOR_MIN - 1);
+			if (extraBits) {
+				BIT_addBits(&blockStream, sequences[nbSeq - 1].offset, extraBits);
+				BIT_flushBits(&blockStream);
+			}
+			BIT_addBits(&blockStream, sequences[nbSeq - 1].offset >> extraBits, ofBits - extraBits);
+		} else {
+			BIT_addBits(&blockStream, sequences[nbSeq - 1].offset, ofCodeTable[nbSeq - 1]);
+		}
+		BIT_flushBits(&blockStream);
+
+		{
+			size_t n;
+			for (n = nbSeq - 2; n < nbSeq; n--) { /* intentional underflow */
+				BYTE const llCode = llCodeTable[n];
+				BYTE const ofCode = ofCodeTable[n];
+				BYTE const mlCode = mlCodeTable[n];
+				U32 const llBits = LL_bits[llCode];
+				U32 const ofBits = ofCode; /* 32b*/ /* 64b*/
+				U32 const mlBits = ML_bits[mlCode];
+				/* (7)*/							    /* (7)*/
+				FSE_encodeSymbol(&blockStream, &stateOffsetBits, ofCode); /* 15 */  /* 15 */
+				FSE_encodeSymbol(&blockStream, &stateMatchLength, mlCode); /* 24 */ /* 24 */
+				if (ZSTD_32bits())
+					BIT_flushBits(&blockStream);				  /* (7)*/
+				FSE_encodeSymbol(&blockStream, &stateLitLength, llCode); /* 16 */ /* 33 */
+				if (ZSTD_32bits() || (ofBits + mlBits + llBits >= 64 - 7 - (LLFSELog + MLFSELog + OffFSELog)))
+					BIT_flushBits(&blockStream); /* (7)*/
+				BIT_addBits(&blockStream, sequences[n].litLength, llBits);
+				if (ZSTD_32bits() && ((llBits + mlBits) > 24))
+					BIT_flushBits(&blockStream);
+				BIT_addBits(&blockStream, sequences[n].matchLength, mlBits);
+				if (ZSTD_32bits())
+					BIT_flushBits(&blockStream); /* (7)*/
+				if (longOffsets) {
+					int const extraBits = ofBits - MIN(ofBits, STREAM_ACCUMULATOR_MIN - 1);
+					if (extraBits) {
+						BIT_addBits(&blockStream, sequences[n].offset, extraBits);
+						BIT_flushBits(&blockStream); /* (7)*/
+					}
+					BIT_addBits(&blockStream, sequences[n].offset >> extraBits, ofBits - extraBits); /* 31 */
+				} else {
+					BIT_addBits(&blockStream, sequences[n].offset, ofBits); /* 31 */
+				}
+				BIT_flushBits(&blockStream); /* (7)*/
+			}
+		}
+
+		FSE_flushCState(&blockStream, &stateMatchLength);
+		FSE_flushCState(&blockStream, &stateOffsetBits);
+		FSE_flushCState(&blockStream, &stateLitLength);
+
+		{
+			size_t const streamSize = BIT_closeCStream(&blockStream);
+			if (streamSize == 0)
+				return ERROR(dstSize_tooSmall); /* not enough space */
+			op += streamSize;
+		}
+	}
+	return op - ostart;
+}
+
+ZSTD_STATIC size_t ZSTD_compressSequences(ZSTD_CCtx *zc, void *dst, size_t dstCapacity, size_t srcSize)
+{
+	size_t const cSize = ZSTD_compressSequences_internal(zc, dst, dstCapacity);
+	size_t const minGain = ZSTD_minGain(srcSize);
+	size_t const maxCSize = srcSize - minGain;
+	/* If the srcSize <= dstCapacity, then there is enough space to write a
+	 * raw uncompressed block. Since we ran out of space, the block must not
+	 * be compressible, so fall back to a raw uncompressed block.
+	 */
+	int const uncompressibleError = cSize == ERROR(dstSize_tooSmall) && srcSize <= dstCapacity;
+	int i;
+
+	if (ZSTD_isError(cSize) && !uncompressibleError)
+		return cSize;
+	if (cSize >= maxCSize || uncompressibleError) {
+		zc->flagStaticHufTable = HUF_repeat_none;
+		return 0;
+	}
+	/* confirm repcodes */
+	for (i = 0; i < ZSTD_REP_NUM; i++)
+		zc->rep[i] = zc->repToConfirm[i];
+	return cSize;
+}
+
+/*! ZSTD_storeSeq() :
+	Store a sequence (literal length, literals, offset code and match length code) into seqStore_t.
+	`offsetCode` : distance to match, or 0 == repCode.
+	`matchCode` : matchLength - MINMATCH
+*/
+ZSTD_STATIC void ZSTD_storeSeq(seqStore_t *seqStorePtr, size_t litLength, const void *literals, U32 offsetCode, size_t matchCode)
+{
+	/* copy Literals */
+	ZSTD_wildcopy(seqStorePtr->lit, literals, litLength);
+	seqStorePtr->lit += litLength;
+
+	/* literal Length */
+	if (litLength > 0xFFFF) {
+		seqStorePtr->longLengthID = 1;
+		seqStorePtr->longLengthPos = (U32)(seqStorePtr->sequences - seqStorePtr->sequencesStart);
+	}
+	seqStorePtr->sequences[0].litLength = (U16)litLength;
+
+	/* match offset */
+	seqStorePtr->sequences[0].offset = offsetCode + 1;
+
+	/* match Length */
+	if (matchCode > 0xFFFF) {
+		seqStorePtr->longLengthID = 2;
+		seqStorePtr->longLengthPos = (U32)(seqStorePtr->sequences - seqStorePtr->sequencesStart);
+	}
+	seqStorePtr->sequences[0].matchLength = (U16)matchCode;
+
+	seqStorePtr->sequences++;
+}
+
+/*-*************************************
+*  Match length counter
+***************************************/
+static unsigned ZSTD_NbCommonBytes(register size_t val)
+{
+	if (ZSTD_isLittleEndian()) {
+		if (ZSTD_64bits()) {
+			return (__builtin_ctzll((U64)val) >> 3);
+		} else { /* 32 bits */
+			return (__builtin_ctz((U32)val) >> 3);
+		}
+	} else { /* Big Endian CPU */
+		if (ZSTD_64bits()) {
+			return (__builtin_clzll(val) >> 3);
+		} else { /* 32 bits */
+			return (__builtin_clz((U32)val) >> 3);
+		}
+	}
+}
+
+static size_t ZSTD_count(const BYTE *pIn, const BYTE *pMatch, const BYTE *const pInLimit)
+{
+	const BYTE *const pStart = pIn;
+	const BYTE *const pInLoopLimit = pInLimit - (sizeof(size_t) - 1);
+
+	while (pIn < pInLoopLimit) {
+		size_t const diff = ZSTD_readST(pMatch) ^ ZSTD_readST(pIn);
+		if (!diff) {
+			pIn += sizeof(size_t);
+			pMatch += sizeof(size_t);
+			continue;
+		}
+		pIn += ZSTD_NbCommonBytes(diff);
+		return (size_t)(pIn - pStart);
+	}
+	if (ZSTD_64bits())
+		if ((pIn < (pInLimit - 3)) && (ZSTD_read32(pMatch) == ZSTD_read32(pIn))) {
+			pIn += 4;
+			pMatch += 4;
+		}
+	if ((pIn < (pInLimit - 1)) && (ZSTD_read16(pMatch) == ZSTD_read16(pIn))) {
+		pIn += 2;
+		pMatch += 2;
+	}
+	if ((pIn < pInLimit) && (*pMatch == *pIn))
+		pIn++;
+	return (size_t)(pIn - pStart);
+}
+
+/** ZSTD_count_2segments() :
+*   can count match length with `ip` & `match` in 2 different segments.
+*   convention : on reaching mEnd, match count continue starting from iStart
+*/
+static size_t ZSTD_count_2segments(const BYTE *ip, const BYTE *match, const BYTE *iEnd, const BYTE *mEnd, const BYTE *iStart)
+{
+	const BYTE *const vEnd = MIN(ip + (mEnd - match), iEnd);
+	size_t const matchLength = ZSTD_count(ip, match, vEnd);
+	if (match + matchLength != mEnd)
+		return matchLength;
+	return matchLength + ZSTD_count(ip + matchLength, iStart, iEnd);
+}
+
+/*-*************************************
+*  Hashes
+***************************************/
+static const U32 prime3bytes = 506832829U;
+static U32 ZSTD_hash3(U32 u, U32 h) { return ((u << (32 - 24)) * prime3bytes) >> (32 - h); }
+ZSTD_STATIC size_t ZSTD_hash3Ptr(const void *ptr, U32 h) { return ZSTD_hash3(ZSTD_readLE32(ptr), h); } /* only in zstd_opt.h */
+
+static const U32 prime4bytes = 2654435761U;
+static U32 ZSTD_hash4(U32 u, U32 h) { return (u * prime4bytes) >> (32 - h); }
+static size_t ZSTD_hash4Ptr(const void *ptr, U32 h) { return ZSTD_hash4(ZSTD_read32(ptr), h); }
+
+static const U64 prime5bytes = 889523592379ULL;
+static size_t ZSTD_hash5(U64 u, U32 h) { return (size_t)(((u << (64 - 40)) * prime5bytes) >> (64 - h)); }
+static size_t ZSTD_hash5Ptr(const void *p, U32 h) { return ZSTD_hash5(ZSTD_readLE64(p), h); }
+
+static const U64 prime6bytes = 227718039650203ULL;
+static size_t ZSTD_hash6(U64 u, U32 h) { return (size_t)(((u << (64 - 48)) * prime6bytes) >> (64 - h)); }
+static size_t ZSTD_hash6Ptr(const void *p, U32 h) { return ZSTD_hash6(ZSTD_readLE64(p), h); }
+
+static const U64 prime7bytes = 58295818150454627ULL;
+static size_t ZSTD_hash7(U64 u, U32 h) { return (size_t)(((u << (64 - 56)) * prime7bytes) >> (64 - h)); }
+static size_t ZSTD_hash7Ptr(const void *p, U32 h) { return ZSTD_hash7(ZSTD_readLE64(p), h); }
+
+static const U64 prime8bytes = 0xCF1BBCDCB7A56463ULL;
+static size_t ZSTD_hash8(U64 u, U32 h) { return (size_t)(((u)*prime8bytes) >> (64 - h)); }
+static size_t ZSTD_hash8Ptr(const void *p, U32 h) { return ZSTD_hash8(ZSTD_readLE64(p), h); }
+
+static size_t ZSTD_hashPtr(const void *p, U32 hBits, U32 mls)
+{
+	switch (mls) {
+	// case 3: return ZSTD_hash3Ptr(p, hBits);
+	default:
+	case 4: return ZSTD_hash4Ptr(p, hBits);
+	case 5: return ZSTD_hash5Ptr(p, hBits);
+	case 6: return ZSTD_hash6Ptr(p, hBits);
+	case 7: return ZSTD_hash7Ptr(p, hBits);
+	case 8: return ZSTD_hash8Ptr(p, hBits);
+	}
+}
+
+/*-*************************************
+*  Fast Scan
+***************************************/
+static void ZSTD_fillHashTable(ZSTD_CCtx *zc, const void *end, const U32 mls)
+{
+	U32 *const hashTable = zc->hashTable;
+	U32 const hBits = zc->params.cParams.hashLog;
+	const BYTE *const base = zc->base;
+	const BYTE *ip = base + zc->nextToUpdate;
+	const BYTE *const iend = ((const BYTE *)end) - HASH_READ_SIZE;
+	const size_t fastHashFillStep = 3;
+
+	while (ip <= iend) {
+		hashTable[ZSTD_hashPtr(ip, hBits, mls)] = (U32)(ip - base);
+		ip += fastHashFillStep;
+	}
+}
+
+FORCE_INLINE
+void ZSTD_compressBlock_fast_generic(ZSTD_CCtx *cctx, const void *src, size_t srcSize, const U32 mls)
+{
+	U32 *const hashTable = cctx->hashTable;
+	U32 const hBits = cctx->params.cParams.hashLog;
+	seqStore_t *seqStorePtr = &(cctx->seqStore);
+	const BYTE *const base = cctx->base;
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const U32 lowestIndex = cctx->dictLimit;
+	const BYTE *const lowest = base + lowestIndex;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - HASH_READ_SIZE;
+	U32 offset_1 = cctx->rep[0], offset_2 = cctx->rep[1];
+	U32 offsetSaved = 0;
+
+	/* init */
+	ip += (ip == lowest);
+	{
+		U32 const maxRep = (U32)(ip - lowest);
+		if (offset_2 > maxRep)
+			offsetSaved = offset_2, offset_2 = 0;
+		if (offset_1 > maxRep)
+			offsetSaved = offset_1, offset_1 = 0;
+	}
+
+	/* Main Search Loop */
+	while (ip < ilimit) { /* < instead of <=, because repcode check at (ip+1) */
+		size_t mLength;
+		size_t const h = ZSTD_hashPtr(ip, hBits, mls);
+		U32 const curr = (U32)(ip - base);
+		U32 const matchIndex = hashTable[h];
+		const BYTE *match = base + matchIndex;
+		hashTable[h] = curr; /* update hash table */
+
+		if ((offset_1 > 0) & (ZSTD_read32(ip + 1 - offset_1) == ZSTD_read32(ip + 1))) {
+			mLength = ZSTD_count(ip + 1 + 4, ip + 1 + 4 - offset_1, iend) + 4;
+			ip++;
+			ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, 0, mLength - MINMATCH);
+		} else {
+			U32 offset;
+			if ((matchIndex <= lowestIndex) || (ZSTD_read32(match) != ZSTD_read32(ip))) {
+				ip += ((ip - anchor) >> g_searchStrength) + 1;
+				continue;
+			}
+			mLength = ZSTD_count(ip + 4, match + 4, iend) + 4;
+			offset = (U32)(ip - match);
+			while (((ip > anchor) & (match > lowest)) && (ip[-1] == match[-1])) {
+				ip--;
+				match--;
+				mLength++;
+			} /* catch up */
+			offset_2 = offset_1;
+			offset_1 = offset;
+
+			ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, offset + ZSTD_REP_MOVE, mLength - MINMATCH);
+		}
+
+		/* match found */
+		ip += mLength;
+		anchor = ip;
+
+		if (ip <= ilimit) {
+			/* Fill Table */
+			hashTable[ZSTD_hashPtr(base + curr + 2, hBits, mls)] = curr + 2; /* here because curr+2 could be > iend-8 */
+			hashTable[ZSTD_hashPtr(ip - 2, hBits, mls)] = (U32)(ip - 2 - base);
+			/* check immediate repcode */
+			while ((ip <= ilimit) && ((offset_2 > 0) & (ZSTD_read32(ip) == ZSTD_read32(ip - offset_2)))) {
+				/* store sequence */
+				size_t const rLength = ZSTD_count(ip + 4, ip + 4 - offset_2, iend) + 4;
+				{
+					U32 const tmpOff = offset_2;
+					offset_2 = offset_1;
+					offset_1 = tmpOff;
+				} /* swap offset_2 <=> offset_1 */
+				hashTable[ZSTD_hashPtr(ip, hBits, mls)] = (U32)(ip - base);
+				ZSTD_storeSeq(seqStorePtr, 0, anchor, 0, rLength - MINMATCH);
+				ip += rLength;
+				anchor = ip;
+				continue; /* faster when present ... (?) */
+			}
+		}
+	}
+
+	/* save reps for next block */
+	cctx->repToConfirm[0] = offset_1 ? offset_1 : offsetSaved;
+	cctx->repToConfirm[1] = offset_2 ? offset_2 : offsetSaved;
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+static void ZSTD_compressBlock_fast(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	const U32 mls = ctx->params.cParams.searchLength;
+	switch (mls) {
+	default: /* includes case 3 */
+	case 4: ZSTD_compressBlock_fast_generic(ctx, src, srcSize, 4); return;
+	case 5: ZSTD_compressBlock_fast_generic(ctx, src, srcSize, 5); return;
+	case 6: ZSTD_compressBlock_fast_generic(ctx, src, srcSize, 6); return;
+	case 7: ZSTD_compressBlock_fast_generic(ctx, src, srcSize, 7); return;
+	}
+}
+
+static void ZSTD_compressBlock_fast_extDict_generic(ZSTD_CCtx *ctx, const void *src, size_t srcSize, const U32 mls)
+{
+	U32 *hashTable = ctx->hashTable;
+	const U32 hBits = ctx->params.cParams.hashLog;
+	seqStore_t *seqStorePtr = &(ctx->seqStore);
+	const BYTE *const base = ctx->base;
+	const BYTE *const dictBase = ctx->dictBase;
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const U32 lowestIndex = ctx->lowLimit;
+	const BYTE *const dictStart = dictBase + lowestIndex;
+	const U32 dictLimit = ctx->dictLimit;
+	const BYTE *const lowPrefixPtr = base + dictLimit;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - 8;
+	U32 offset_1 = ctx->rep[0], offset_2 = ctx->rep[1];
+
+	/* Search Loop */
+	while (ip < ilimit) { /* < instead of <=, because (ip+1) */
+		const size_t h = ZSTD_hashPtr(ip, hBits, mls);
+		const U32 matchIndex = hashTable[h];
+		const BYTE *matchBase = matchIndex < dictLimit ? dictBase : base;
+		const BYTE *match = matchBase + matchIndex;
+		const U32 curr = (U32)(ip - base);
+		const U32 repIndex = curr + 1 - offset_1; /* offset_1 expected <= curr +1 */
+		const BYTE *repBase = repIndex < dictLimit ? dictBase : base;
+		const BYTE *repMatch = repBase + repIndex;
+		size_t mLength;
+		hashTable[h] = curr; /* update hash table */
+
+		if ((((U32)((dictLimit - 1) - repIndex) >= 3) /* intentional underflow */ & (repIndex > lowestIndex)) &&
+		    (ZSTD_read32(repMatch) == ZSTD_read32(ip + 1))) {
+			const BYTE *repMatchEnd = repIndex < dictLimit ? dictEnd : iend;
+			mLength = ZSTD_count_2segments(ip + 1 + EQUAL_READ32, repMatch + EQUAL_READ32, iend, repMatchEnd, lowPrefixPtr) + EQUAL_READ32;
+			ip++;
+			ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, 0, mLength - MINMATCH);
+		} else {
+			if ((matchIndex < lowestIndex) || (ZSTD_read32(match) != ZSTD_read32(ip))) {
+				ip += ((ip - anchor) >> g_searchStrength) + 1;
+				continue;
+			}
+			{
+				const BYTE *matchEnd = matchIndex < dictLimit ? dictEnd : iend;
+				const BYTE *lowMatchPtr = matchIndex < dictLimit ? dictStart : lowPrefixPtr;
+				U32 offset;
+				mLength = ZSTD_count_2segments(ip + EQUAL_READ32, match + EQUAL_READ32, iend, matchEnd, lowPrefixPtr) + EQUAL_READ32;
+				while (((ip > anchor) & (match > lowMatchPtr)) && (ip[-1] == match[-1])) {
+					ip--;
+					match--;
+					mLength++;
+				} /* catch up */
+				offset = curr - matchIndex;
+				offset_2 = offset_1;
+				offset_1 = offset;
+				ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, offset + ZSTD_REP_MOVE, mLength - MINMATCH);
+			}
+		}
+
+		/* found a match : store it */
+		ip += mLength;
+		anchor = ip;
+
+		if (ip <= ilimit) {
+			/* Fill Table */
+			hashTable[ZSTD_hashPtr(base + curr + 2, hBits, mls)] = curr + 2;
+			hashTable[ZSTD_hashPtr(ip - 2, hBits, mls)] = (U32)(ip - 2 - base);
+			/* check immediate repcode */
+			while (ip <= ilimit) {
+				U32 const curr2 = (U32)(ip - base);
+				U32 const repIndex2 = curr2 - offset_2;
+				const BYTE *repMatch2 = repIndex2 < dictLimit ? dictBase + repIndex2 : base + repIndex2;
+				if ((((U32)((dictLimit - 1) - repIndex2) >= 3) & (repIndex2 > lowestIndex)) /* intentional overflow */
+				    && (ZSTD_read32(repMatch2) == ZSTD_read32(ip))) {
+					const BYTE *const repEnd2 = repIndex2 < dictLimit ? dictEnd : iend;
+					size_t repLength2 =
+					    ZSTD_count_2segments(ip + EQUAL_READ32, repMatch2 + EQUAL_READ32, iend, repEnd2, lowPrefixPtr) + EQUAL_READ32;
+					U32 tmpOffset = offset_2;
+					offset_2 = offset_1;
+					offset_1 = tmpOffset; /* swap offset_2 <=> offset_1 */
+					ZSTD_storeSeq(seqStorePtr, 0, anchor, 0, repLength2 - MINMATCH);
+					hashTable[ZSTD_hashPtr(ip, hBits, mls)] = curr2;
+					ip += repLength2;
+					anchor = ip;
+					continue;
+				}
+				break;
+			}
+		}
+	}
+
+	/* save reps for next block */
+	ctx->repToConfirm[0] = offset_1;
+	ctx->repToConfirm[1] = offset_2;
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+static void ZSTD_compressBlock_fast_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	U32 const mls = ctx->params.cParams.searchLength;
+	switch (mls) {
+	default: /* includes case 3 */
+	case 4: ZSTD_compressBlock_fast_extDict_generic(ctx, src, srcSize, 4); return;
+	case 5: ZSTD_compressBlock_fast_extDict_generic(ctx, src, srcSize, 5); return;
+	case 6: ZSTD_compressBlock_fast_extDict_generic(ctx, src, srcSize, 6); return;
+	case 7: ZSTD_compressBlock_fast_extDict_generic(ctx, src, srcSize, 7); return;
+	}
+}
+
+/*-*************************************
+*  Double Fast
+***************************************/
+static void ZSTD_fillDoubleHashTable(ZSTD_CCtx *cctx, const void *end, const U32 mls)
+{
+	U32 *const hashLarge = cctx->hashTable;
+	U32 const hBitsL = cctx->params.cParams.hashLog;
+	U32 *const hashSmall = cctx->chainTable;
+	U32 const hBitsS = cctx->params.cParams.chainLog;
+	const BYTE *const base = cctx->base;
+	const BYTE *ip = base + cctx->nextToUpdate;
+	const BYTE *const iend = ((const BYTE *)end) - HASH_READ_SIZE;
+	const size_t fastHashFillStep = 3;
+
+	while (ip <= iend) {
+		hashSmall[ZSTD_hashPtr(ip, hBitsS, mls)] = (U32)(ip - base);
+		hashLarge[ZSTD_hashPtr(ip, hBitsL, 8)] = (U32)(ip - base);
+		ip += fastHashFillStep;
+	}
+}
+
+FORCE_INLINE
+void ZSTD_compressBlock_doubleFast_generic(ZSTD_CCtx *cctx, const void *src, size_t srcSize, const U32 mls)
+{
+	U32 *const hashLong = cctx->hashTable;
+	const U32 hBitsL = cctx->params.cParams.hashLog;
+	U32 *const hashSmall = cctx->chainTable;
+	const U32 hBitsS = cctx->params.cParams.chainLog;
+	seqStore_t *seqStorePtr = &(cctx->seqStore);
+	const BYTE *const base = cctx->base;
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const U32 lowestIndex = cctx->dictLimit;
+	const BYTE *const lowest = base + lowestIndex;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - HASH_READ_SIZE;
+	U32 offset_1 = cctx->rep[0], offset_2 = cctx->rep[1];
+	U32 offsetSaved = 0;
+
+	/* init */
+	ip += (ip == lowest);
+	{
+		U32 const maxRep = (U32)(ip - lowest);
+		if (offset_2 > maxRep)
+			offsetSaved = offset_2, offset_2 = 0;
+		if (offset_1 > maxRep)
+			offsetSaved = offset_1, offset_1 = 0;
+	}
+
+	/* Main Search Loop */
+	while (ip < ilimit) { /* < instead of <=, because repcode check at (ip+1) */
+		size_t mLength;
+		size_t const h2 = ZSTD_hashPtr(ip, hBitsL, 8);
+		size_t const h = ZSTD_hashPtr(ip, hBitsS, mls);
+		U32 const curr = (U32)(ip - base);
+		U32 const matchIndexL = hashLong[h2];
+		U32 const matchIndexS = hashSmall[h];
+		const BYTE *matchLong = base + matchIndexL;
+		const BYTE *match = base + matchIndexS;
+		hashLong[h2] = hashSmall[h] = curr; /* update hash tables */
+
+		if ((offset_1 > 0) & (ZSTD_read32(ip + 1 - offset_1) == ZSTD_read32(ip + 1))) { /* note : by construction, offset_1 <= curr */
+			mLength = ZSTD_count(ip + 1 + 4, ip + 1 + 4 - offset_1, iend) + 4;
+			ip++;
+			ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, 0, mLength - MINMATCH);
+		} else {
+			U32 offset;
+			if ((matchIndexL > lowestIndex) && (ZSTD_read64(matchLong) == ZSTD_read64(ip))) {
+				mLength = ZSTD_count(ip + 8, matchLong + 8, iend) + 8;
+				offset = (U32)(ip - matchLong);
+				while (((ip > anchor) & (matchLong > lowest)) && (ip[-1] == matchLong[-1])) {
+					ip--;
+					matchLong--;
+					mLength++;
+				} /* catch up */
+			} else if ((matchIndexS > lowestIndex) && (ZSTD_read32(match) == ZSTD_read32(ip))) {
+				size_t const h3 = ZSTD_hashPtr(ip + 1, hBitsL, 8);
+				U32 const matchIndex3 = hashLong[h3];
+				const BYTE *match3 = base + matchIndex3;
+				hashLong[h3] = curr + 1;
+				if ((matchIndex3 > lowestIndex) && (ZSTD_read64(match3) == ZSTD_read64(ip + 1))) {
+					mLength = ZSTD_count(ip + 9, match3 + 8, iend) + 8;
+					ip++;
+					offset = (U32)(ip - match3);
+					while (((ip > anchor) & (match3 > lowest)) && (ip[-1] == match3[-1])) {
+						ip--;
+						match3--;
+						mLength++;
+					} /* catch up */
+				} else {
+					mLength = ZSTD_count(ip + 4, match + 4, iend) + 4;
+					offset = (U32)(ip - match);
+					while (((ip > anchor) & (match > lowest)) && (ip[-1] == match[-1])) {
+						ip--;
+						match--;
+						mLength++;
+					} /* catch up */
+				}
+			} else {
+				ip += ((ip - anchor) >> g_searchStrength) + 1;
+				continue;
+			}
+
+			offset_2 = offset_1;
+			offset_1 = offset;
+
+			ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, offset + ZSTD_REP_MOVE, mLength - MINMATCH);
+		}
+
+		/* match found */
+		ip += mLength;
+		anchor = ip;
+
+		if (ip <= ilimit) {
+			/* Fill Table */
+			hashLong[ZSTD_hashPtr(base + curr + 2, hBitsL, 8)] = hashSmall[ZSTD_hashPtr(base + curr + 2, hBitsS, mls)] =
+			    curr + 2; /* here because curr+2 could be > iend-8 */
+			hashLong[ZSTD_hashPtr(ip - 2, hBitsL, 8)] = hashSmall[ZSTD_hashPtr(ip - 2, hBitsS, mls)] = (U32)(ip - 2 - base);
+
+			/* check immediate repcode */
+			while ((ip <= ilimit) && ((offset_2 > 0) & (ZSTD_read32(ip) == ZSTD_read32(ip - offset_2)))) {
+				/* store sequence */
+				size_t const rLength = ZSTD_count(ip + 4, ip + 4 - offset_2, iend) + 4;
+				{
+					U32 const tmpOff = offset_2;
+					offset_2 = offset_1;
+					offset_1 = tmpOff;
+				} /* swap offset_2 <=> offset_1 */
+				hashSmall[ZSTD_hashPtr(ip, hBitsS, mls)] = (U32)(ip - base);
+				hashLong[ZSTD_hashPtr(ip, hBitsL, 8)] = (U32)(ip - base);
+				ZSTD_storeSeq(seqStorePtr, 0, anchor, 0, rLength - MINMATCH);
+				ip += rLength;
+				anchor = ip;
+				continue; /* faster when present ... (?) */
+			}
+		}
+	}
+
+	/* save reps for next block */
+	cctx->repToConfirm[0] = offset_1 ? offset_1 : offsetSaved;
+	cctx->repToConfirm[1] = offset_2 ? offset_2 : offsetSaved;
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+static void ZSTD_compressBlock_doubleFast(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	const U32 mls = ctx->params.cParams.searchLength;
+	switch (mls) {
+	default: /* includes case 3 */
+	case 4: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 4); return;
+	case 5: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 5); return;
+	case 6: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 6); return;
+	case 7: ZSTD_compressBlock_doubleFast_generic(ctx, src, srcSize, 7); return;
+	}
+}
+
+static void ZSTD_compressBlock_doubleFast_extDict_generic(ZSTD_CCtx *ctx, const void *src, size_t srcSize, const U32 mls)
+{
+	U32 *const hashLong = ctx->hashTable;
+	U32 const hBitsL = ctx->params.cParams.hashLog;
+	U32 *const hashSmall = ctx->chainTable;
+	U32 const hBitsS = ctx->params.cParams.chainLog;
+	seqStore_t *seqStorePtr = &(ctx->seqStore);
+	const BYTE *const base = ctx->base;
+	const BYTE *const dictBase = ctx->dictBase;
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const U32 lowestIndex = ctx->lowLimit;
+	const BYTE *const dictStart = dictBase + lowestIndex;
+	const U32 dictLimit = ctx->dictLimit;
+	const BYTE *const lowPrefixPtr = base + dictLimit;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - 8;
+	U32 offset_1 = ctx->rep[0], offset_2 = ctx->rep[1];
+
+	/* Search Loop */
+	while (ip < ilimit) { /* < instead of <=, because (ip+1) */
+		const size_t hSmall = ZSTD_hashPtr(ip, hBitsS, mls);
+		const U32 matchIndex = hashSmall[hSmall];
+		const BYTE *matchBase = matchIndex < dictLimit ? dictBase : base;
+		const BYTE *match = matchBase + matchIndex;
+
+		const size_t hLong = ZSTD_hashPtr(ip, hBitsL, 8);
+		const U32 matchLongIndex = hashLong[hLong];
+		const BYTE *matchLongBase = matchLongIndex < dictLimit ? dictBase : base;
+		const BYTE *matchLong = matchLongBase + matchLongIndex;
+
+		const U32 curr = (U32)(ip - base);
+		const U32 repIndex = curr + 1 - offset_1; /* offset_1 expected <= curr +1 */
+		const BYTE *repBase = repIndex < dictLimit ? dictBase : base;
+		const BYTE *repMatch = repBase + repIndex;
+		size_t mLength;
+		hashSmall[hSmall] = hashLong[hLong] = curr; /* update hash table */
+
+		if ((((U32)((dictLimit - 1) - repIndex) >= 3) /* intentional underflow */ & (repIndex > lowestIndex)) &&
+		    (ZSTD_read32(repMatch) == ZSTD_read32(ip + 1))) {
+			const BYTE *repMatchEnd = repIndex < dictLimit ? dictEnd : iend;
+			mLength = ZSTD_count_2segments(ip + 1 + 4, repMatch + 4, iend, repMatchEnd, lowPrefixPtr) + 4;
+			ip++;
+			ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, 0, mLength - MINMATCH);
+		} else {
+			if ((matchLongIndex > lowestIndex) && (ZSTD_read64(matchLong) == ZSTD_read64(ip))) {
+				const BYTE *matchEnd = matchLongIndex < dictLimit ? dictEnd : iend;
+				const BYTE *lowMatchPtr = matchLongIndex < dictLimit ? dictStart : lowPrefixPtr;
+				U32 offset;
+				mLength = ZSTD_count_2segments(ip + 8, matchLong + 8, iend, matchEnd, lowPrefixPtr) + 8;
+				offset = curr - matchLongIndex;
+				while (((ip > anchor) & (matchLong > lowMatchPtr)) && (ip[-1] == matchLong[-1])) {
+					ip--;
+					matchLong--;
+					mLength++;
+				} /* catch up */
+				offset_2 = offset_1;
+				offset_1 = offset;
+				ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, offset + ZSTD_REP_MOVE, mLength - MINMATCH);
+
+			} else if ((matchIndex > lowestIndex) && (ZSTD_read32(match) == ZSTD_read32(ip))) {
+				size_t const h3 = ZSTD_hashPtr(ip + 1, hBitsL, 8);
+				U32 const matchIndex3 = hashLong[h3];
+				const BYTE *const match3Base = matchIndex3 < dictLimit ? dictBase : base;
+				const BYTE *match3 = match3Base + matchIndex3;
+				U32 offset;
+				hashLong[h3] = curr + 1;
+				if ((matchIndex3 > lowestIndex) && (ZSTD_read64(match3) == ZSTD_read64(ip + 1))) {
+					const BYTE *matchEnd = matchIndex3 < dictLimit ? dictEnd : iend;
+					const BYTE *lowMatchPtr = matchIndex3 < dictLimit ? dictStart : lowPrefixPtr;
+					mLength = ZSTD_count_2segments(ip + 9, match3 + 8, iend, matchEnd, lowPrefixPtr) + 8;
+					ip++;
+					offset = curr + 1 - matchIndex3;
+					while (((ip > anchor) & (match3 > lowMatchPtr)) && (ip[-1] == match3[-1])) {
+						ip--;
+						match3--;
+						mLength++;
+					} /* catch up */
+				} else {
+					const BYTE *matchEnd = matchIndex < dictLimit ? dictEnd : iend;
+					const BYTE *lowMatchPtr = matchIndex < dictLimit ? dictStart : lowPrefixPtr;
+					mLength = ZSTD_count_2segments(ip + 4, match + 4, iend, matchEnd, lowPrefixPtr) + 4;
+					offset = curr - matchIndex;
+					while (((ip > anchor) & (match > lowMatchPtr)) && (ip[-1] == match[-1])) {
+						ip--;
+						match--;
+						mLength++;
+					} /* catch up */
+				}
+				offset_2 = offset_1;
+				offset_1 = offset;
+				ZSTD_storeSeq(seqStorePtr, ip - anchor, anchor, offset + ZSTD_REP_MOVE, mLength - MINMATCH);
+
+			} else {
+				ip += ((ip - anchor) >> g_searchStrength) + 1;
+				continue;
+			}
+		}
+
+		/* found a match : store it */
+		ip += mLength;
+		anchor = ip;
+
+		if (ip <= ilimit) {
+			/* Fill Table */
+			hashSmall[ZSTD_hashPtr(base + curr + 2, hBitsS, mls)] = curr + 2;
+			hashLong[ZSTD_hashPtr(base + curr + 2, hBitsL, 8)] = curr + 2;
+			hashSmall[ZSTD_hashPtr(ip - 2, hBitsS, mls)] = (U32)(ip - 2 - base);
+			hashLong[ZSTD_hashPtr(ip - 2, hBitsL, 8)] = (U32)(ip - 2 - base);
+			/* check immediate repcode */
+			while (ip <= ilimit) {
+				U32 const curr2 = (U32)(ip - base);
+				U32 const repIndex2 = curr2 - offset_2;
+				const BYTE *repMatch2 = repIndex2 < dictLimit ? dictBase + repIndex2 : base + repIndex2;
+				if ((((U32)((dictLimit - 1) - repIndex2) >= 3) & (repIndex2 > lowestIndex)) /* intentional overflow */
+				    && (ZSTD_read32(repMatch2) == ZSTD_read32(ip))) {
+					const BYTE *const repEnd2 = repIndex2 < dictLimit ? dictEnd : iend;
+					size_t const repLength2 =
+					    ZSTD_count_2segments(ip + EQUAL_READ32, repMatch2 + EQUAL_READ32, iend, repEnd2, lowPrefixPtr) + EQUAL_READ32;
+					U32 tmpOffset = offset_2;
+					offset_2 = offset_1;
+					offset_1 = tmpOffset; /* swap offset_2 <=> offset_1 */
+					ZSTD_storeSeq(seqStorePtr, 0, anchor, 0, repLength2 - MINMATCH);
+					hashSmall[ZSTD_hashPtr(ip, hBitsS, mls)] = curr2;
+					hashLong[ZSTD_hashPtr(ip, hBitsL, 8)] = curr2;
+					ip += repLength2;
+					anchor = ip;
+					continue;
+				}
+				break;
+			}
+		}
+	}
+
+	/* save reps for next block */
+	ctx->repToConfirm[0] = offset_1;
+	ctx->repToConfirm[1] = offset_2;
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+static void ZSTD_compressBlock_doubleFast_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	U32 const mls = ctx->params.cParams.searchLength;
+	switch (mls) {
+	default: /* includes case 3 */
+	case 4: ZSTD_compressBlock_doubleFast_extDict_generic(ctx, src, srcSize, 4); return;
+	case 5: ZSTD_compressBlock_doubleFast_extDict_generic(ctx, src, srcSize, 5); return;
+	case 6: ZSTD_compressBlock_doubleFast_extDict_generic(ctx, src, srcSize, 6); return;
+	case 7: ZSTD_compressBlock_doubleFast_extDict_generic(ctx, src, srcSize, 7); return;
+	}
+}
+
+/*-*************************************
+*  Binary Tree search
+***************************************/
+/** ZSTD_insertBt1() : add one or multiple positions to tree.
+*   ip : assumed <= iend-8 .
+*   @return : nb of positions added */
+static U32 ZSTD_insertBt1(ZSTD_CCtx *zc, const BYTE *const ip, const U32 mls, const BYTE *const iend, U32 nbCompares, U32 extDict)
+{
+	U32 *const hashTable = zc->hashTable;
+	U32 const hashLog = zc->params.cParams.hashLog;
+	size_t const h = ZSTD_hashPtr(ip, hashLog, mls);
+	U32 *const bt = zc->chainTable;
+	U32 const btLog = zc->params.cParams.chainLog - 1;
+	U32 const btMask = (1 << btLog) - 1;
+	U32 matchIndex = hashTable[h];
+	size_t commonLengthSmaller = 0, commonLengthLarger = 0;
+	const BYTE *const base = zc->base;
+	const BYTE *const dictBase = zc->dictBase;
+	const U32 dictLimit = zc->dictLimit;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const BYTE *const prefixStart = base + dictLimit;
+	const BYTE *match;
+	const U32 curr = (U32)(ip - base);
+	const U32 btLow = btMask >= curr ? 0 : curr - btMask;
+	U32 *smallerPtr = bt + 2 * (curr & btMask);
+	U32 *largerPtr = smallerPtr + 1;
+	U32 dummy32; /* to be nullified at the end */
+	U32 const windowLow = zc->lowLimit;
+	U32 matchEndIdx = curr + 8;
+	size_t bestLength = 8;
+
+	hashTable[h] = curr; /* Update Hash Table */
+
+	while (nbCompares-- && (matchIndex > windowLow)) {
+		U32 *const nextPtr = bt + 2 * (matchIndex & btMask);
+		size_t matchLength = MIN(commonLengthSmaller, commonLengthLarger); /* guaranteed minimum nb of common bytes */
+
+		if ((!extDict) || (matchIndex + matchLength >= dictLimit)) {
+			match = base + matchIndex;
+			if (match[matchLength] == ip[matchLength])
+				matchLength += ZSTD_count(ip + matchLength + 1, match + matchLength + 1, iend) + 1;
+		} else {
+			match = dictBase + matchIndex;
+			matchLength += ZSTD_count_2segments(ip + matchLength, match + matchLength, iend, dictEnd, prefixStart);
+			if (matchIndex + matchLength >= dictLimit)
+				match = base + matchIndex; /* to prepare for next usage of match[matchLength] */
+		}
+
+		if (matchLength > bestLength) {
+			bestLength = matchLength;
+			if (matchLength > matchEndIdx - matchIndex)
+				matchEndIdx = matchIndex + (U32)matchLength;
+		}
+
+		if (ip + matchLength == iend) /* equal : no way to know if inf or sup */
+			break;		      /* drop , to guarantee consistency ; miss a bit of compression, but other solutions can corrupt the tree */
+
+		if (match[matchLength] < ip[matchLength]) { /* necessarily within correct buffer */
+			/* match is smaller than curr */
+			*smallerPtr = matchIndex;	  /* update smaller idx */
+			commonLengthSmaller = matchLength; /* all smaller will now have at least this guaranteed common length */
+			if (matchIndex <= btLow) {
+				smallerPtr = &dummy32;
+				break;
+			}			  /* beyond tree size, stop the search */
+			smallerPtr = nextPtr + 1; /* new "smaller" => larger of match */
+			matchIndex = nextPtr[1];  /* new matchIndex larger than previous (closer to curr) */
+		} else {
+			/* match is larger than curr */
+			*largerPtr = matchIndex;
+			commonLengthLarger = matchLength;
+			if (matchIndex <= btLow) {
+				largerPtr = &dummy32;
+				break;
+			} /* beyond tree size, stop the search */
+			largerPtr = nextPtr;
+			matchIndex = nextPtr[0];
+		}
+	}
+
+	*smallerPtr = *largerPtr = 0;
+	if (bestLength > 384)
+		return MIN(192, (U32)(bestLength - 384)); /* speed optimization */
+	if (matchEndIdx > curr + 8)
+		return matchEndIdx - curr - 8;
+	return 1;
+}
+
+static size_t ZSTD_insertBtAndFindBestMatch(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iend, size_t *offsetPtr, U32 nbCompares, const U32 mls,
+					    U32 extDict)
+{
+	U32 *const hashTable = zc->hashTable;
+	U32 const hashLog = zc->params.cParams.hashLog;
+	size_t const h = ZSTD_hashPtr(ip, hashLog, mls);
+	U32 *const bt = zc->chainTable;
+	U32 const btLog = zc->params.cParams.chainLog - 1;
+	U32 const btMask = (1 << btLog) - 1;
+	U32 matchIndex = hashTable[h];
+	size_t commonLengthSmaller = 0, commonLengthLarger = 0;
+	const BYTE *const base = zc->base;
+	const BYTE *const dictBase = zc->dictBase;
+	const U32 dictLimit = zc->dictLimit;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const BYTE *const prefixStart = base + dictLimit;
+	const U32 curr = (U32)(ip - base);
+	const U32 btLow = btMask >= curr ? 0 : curr - btMask;
+	const U32 windowLow = zc->lowLimit;
+	U32 *smallerPtr = bt + 2 * (curr & btMask);
+	U32 *largerPtr = bt + 2 * (curr & btMask) + 1;
+	U32 matchEndIdx = curr + 8;
+	U32 dummy32; /* to be nullified at the end */
+	size_t bestLength = 0;
+
+	hashTable[h] = curr; /* Update Hash Table */
+
+	while (nbCompares-- && (matchIndex > windowLow)) {
+		U32 *const nextPtr = bt + 2 * (matchIndex & btMask);
+		size_t matchLength = MIN(commonLengthSmaller, commonLengthLarger); /* guaranteed minimum nb of common bytes */
+		const BYTE *match;
+
+		if ((!extDict) || (matchIndex + matchLength >= dictLimit)) {
+			match = base + matchIndex;
+			if (match[matchLength] == ip[matchLength])
+				matchLength += ZSTD_count(ip + matchLength + 1, match + matchLength + 1, iend) + 1;
+		} else {
+			match = dictBase + matchIndex;
+			matchLength += ZSTD_count_2segments(ip + matchLength, match + matchLength, iend, dictEnd, prefixStart);
+			if (matchIndex + matchLength >= dictLimit)
+				match = base + matchIndex; /* to prepare for next usage of match[matchLength] */
+		}
+
+		if (matchLength > bestLength) {
+			if (matchLength > matchEndIdx - matchIndex)
+				matchEndIdx = matchIndex + (U32)matchLength;
+			if ((4 * (int)(matchLength - bestLength)) > (int)(ZSTD_highbit32(curr - matchIndex + 1) - ZSTD_highbit32((U32)offsetPtr[0] + 1)))
+				bestLength = matchLength, *offsetPtr = ZSTD_REP_MOVE + curr - matchIndex;
+			if (ip + matchLength == iend) /* equal : no way to know if inf or sup */
+				break;		      /* drop, to guarantee consistency (miss a little bit of compression) */
+		}
+
+		if (match[matchLength] < ip[matchLength]) {
+			/* match is smaller than curr */
+			*smallerPtr = matchIndex;	  /* update smaller idx */
+			commonLengthSmaller = matchLength; /* all smaller will now have at least this guaranteed common length */
+			if (matchIndex <= btLow) {
+				smallerPtr = &dummy32;
+				break;
+			}			  /* beyond tree size, stop the search */
+			smallerPtr = nextPtr + 1; /* new "smaller" => larger of match */
+			matchIndex = nextPtr[1];  /* new matchIndex larger than previous (closer to curr) */
+		} else {
+			/* match is larger than curr */
+			*largerPtr = matchIndex;
+			commonLengthLarger = matchLength;
+			if (matchIndex <= btLow) {
+				largerPtr = &dummy32;
+				break;
+			} /* beyond tree size, stop the search */
+			largerPtr = nextPtr;
+			matchIndex = nextPtr[0];
+		}
+	}
+
+	*smallerPtr = *largerPtr = 0;
+
+	zc->nextToUpdate = (matchEndIdx > curr + 8) ? matchEndIdx - 8 : curr + 1;
+	return bestLength;
+}
+
+static void ZSTD_updateTree(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iend, const U32 nbCompares, const U32 mls)
+{
+	const BYTE *const base = zc->base;
+	const U32 target = (U32)(ip - base);
+	U32 idx = zc->nextToUpdate;
+
+	while (idx < target)
+		idx += ZSTD_insertBt1(zc, base + idx, mls, iend, nbCompares, 0);
+}
+
+/** ZSTD_BtFindBestMatch() : Tree updater, providing best match */
+static size_t ZSTD_BtFindBestMatch(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts, const U32 mls)
+{
+	if (ip < zc->base + zc->nextToUpdate)
+		return 0; /* skipped area */
+	ZSTD_updateTree(zc, ip, iLimit, maxNbAttempts, mls);
+	return ZSTD_insertBtAndFindBestMatch(zc, ip, iLimit, offsetPtr, maxNbAttempts, mls, 0);
+}
+
+static size_t ZSTD_BtFindBestMatch_selectMLS(ZSTD_CCtx *zc, /* Index table will be updated */
+					     const BYTE *ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts, const U32 matchLengthSearch)
+{
+	switch (matchLengthSearch) {
+	default: /* includes case 3 */
+	case 4: return ZSTD_BtFindBestMatch(zc, ip, iLimit, offsetPtr, maxNbAttempts, 4);
+	case 5: return ZSTD_BtFindBestMatch(zc, ip, iLimit, offsetPtr, maxNbAttempts, 5);
+	case 7:
+	case 6: return ZSTD_BtFindBestMatch(zc, ip, iLimit, offsetPtr, maxNbAttempts, 6);
+	}
+}
+
+static void ZSTD_updateTree_extDict(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iend, const U32 nbCompares, const U32 mls)
+{
+	const BYTE *const base = zc->base;
+	const U32 target = (U32)(ip - base);
+	U32 idx = zc->nextToUpdate;
+
+	while (idx < target)
+		idx += ZSTD_insertBt1(zc, base + idx, mls, iend, nbCompares, 1);
+}
+
+/** Tree updater, providing best match */
+static size_t ZSTD_BtFindBestMatch_extDict(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts,
+					   const U32 mls)
+{
+	if (ip < zc->base + zc->nextToUpdate)
+		return 0; /* skipped area */
+	ZSTD_updateTree_extDict(zc, ip, iLimit, maxNbAttempts, mls);
+	return ZSTD_insertBtAndFindBestMatch(zc, ip, iLimit, offsetPtr, maxNbAttempts, mls, 1);
+}
+
+static size_t ZSTD_BtFindBestMatch_selectMLS_extDict(ZSTD_CCtx *zc, /* Index table will be updated */
+						     const BYTE *ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts,
+						     const U32 matchLengthSearch)
+{
+	switch (matchLengthSearch) {
+	default: /* includes case 3 */
+	case 4: return ZSTD_BtFindBestMatch_extDict(zc, ip, iLimit, offsetPtr, maxNbAttempts, 4);
+	case 5: return ZSTD_BtFindBestMatch_extDict(zc, ip, iLimit, offsetPtr, maxNbAttempts, 5);
+	case 7:
+	case 6: return ZSTD_BtFindBestMatch_extDict(zc, ip, iLimit, offsetPtr, maxNbAttempts, 6);
+	}
+}
+
+/* *********************************
+*  Hash Chain
+***********************************/
+#define NEXT_IN_CHAIN(d, mask) chainTable[(d)&mask]
+
+/* Update chains up to ip (excluded)
+   Assumption : always within prefix (i.e. not within extDict) */
+FORCE_INLINE
+U32 ZSTD_insertAndFindFirstIndex(ZSTD_CCtx *zc, const BYTE *ip, U32 mls)
+{
+	U32 *const hashTable = zc->hashTable;
+	const U32 hashLog = zc->params.cParams.hashLog;
+	U32 *const chainTable = zc->chainTable;
+	const U32 chainMask = (1 << zc->params.cParams.chainLog) - 1;
+	const BYTE *const base = zc->base;
+	const U32 target = (U32)(ip - base);
+	U32 idx = zc->nextToUpdate;
+
+	while (idx < target) { /* catch up */
+		size_t const h = ZSTD_hashPtr(base + idx, hashLog, mls);
+		NEXT_IN_CHAIN(idx, chainMask) = hashTable[h];
+		hashTable[h] = idx;
+		idx++;
+	}
+
+	zc->nextToUpdate = target;
+	return hashTable[ZSTD_hashPtr(ip, hashLog, mls)];
+}
+
+/* inlining is important to hardwire a hot branch (template emulation) */
+FORCE_INLINE
+size_t ZSTD_HcFindBestMatch_generic(ZSTD_CCtx *zc, /* Index table will be updated */
+				    const BYTE *const ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts, const U32 mls,
+				    const U32 extDict)
+{
+	U32 *const chainTable = zc->chainTable;
+	const U32 chainSize = (1 << zc->params.cParams.chainLog);
+	const U32 chainMask = chainSize - 1;
+	const BYTE *const base = zc->base;
+	const BYTE *const dictBase = zc->dictBase;
+	const U32 dictLimit = zc->dictLimit;
+	const BYTE *const prefixStart = base + dictLimit;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const U32 lowLimit = zc->lowLimit;
+	const U32 curr = (U32)(ip - base);
+	const U32 minChain = curr > chainSize ? curr - chainSize : 0;
+	int nbAttempts = maxNbAttempts;
+	size_t ml = EQUAL_READ32 - 1;
+
+	/* HC4 match finder */
+	U32 matchIndex = ZSTD_insertAndFindFirstIndex(zc, ip, mls);
+
+	for (; (matchIndex > lowLimit) & (nbAttempts > 0); nbAttempts--) {
+		const BYTE *match;
+		size_t currMl = 0;
+		if ((!extDict) || matchIndex >= dictLimit) {
+			match = base + matchIndex;
+			if (match[ml] == ip[ml]) /* potentially better */
+				currMl = ZSTD_count(ip, match, iLimit);
+		} else {
+			match = dictBase + matchIndex;
+			if (ZSTD_read32(match) == ZSTD_read32(ip)) /* assumption : matchIndex <= dictLimit-4 (by table construction) */
+				currMl = ZSTD_count_2segments(ip + EQUAL_READ32, match + EQUAL_READ32, iLimit, dictEnd, prefixStart) + EQUAL_READ32;
+		}
+
+		/* save best solution */
+		if (currMl > ml) {
+			ml = currMl;
+			*offsetPtr = curr - matchIndex + ZSTD_REP_MOVE;
+			if (ip + currMl == iLimit)
+				break; /* best possible, and avoid read overflow*/
+		}
+
+		if (matchIndex <= minChain)
+			break;
+		matchIndex = NEXT_IN_CHAIN(matchIndex, chainMask);
+	}
+
+	return ml;
+}
+
+FORCE_INLINE size_t ZSTD_HcFindBestMatch_selectMLS(ZSTD_CCtx *zc, const BYTE *ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts,
+						   const U32 matchLengthSearch)
+{
+	switch (matchLengthSearch) {
+	default: /* includes case 3 */
+	case 4: return ZSTD_HcFindBestMatch_generic(zc, ip, iLimit, offsetPtr, maxNbAttempts, 4, 0);
+	case 5: return ZSTD_HcFindBestMatch_generic(zc, ip, iLimit, offsetPtr, maxNbAttempts, 5, 0);
+	case 7:
+	case 6: return ZSTD_HcFindBestMatch_generic(zc, ip, iLimit, offsetPtr, maxNbAttempts, 6, 0);
+	}
+}
+
+FORCE_INLINE size_t ZSTD_HcFindBestMatch_extDict_selectMLS(ZSTD_CCtx *zc, const BYTE *ip, const BYTE *const iLimit, size_t *offsetPtr, const U32 maxNbAttempts,
+							   const U32 matchLengthSearch)
+{
+	switch (matchLengthSearch) {
+	default: /* includes case 3 */
+	case 4: return ZSTD_HcFindBestMatch_generic(zc, ip, iLimit, offsetPtr, maxNbAttempts, 4, 1);
+	case 5: return ZSTD_HcFindBestMatch_generic(zc, ip, iLimit, offsetPtr, maxNbAttempts, 5, 1);
+	case 7:
+	case 6: return ZSTD_HcFindBestMatch_generic(zc, ip, iLimit, offsetPtr, maxNbAttempts, 6, 1);
+	}
+}
+
+/* *******************************
+*  Common parser - lazy strategy
+*********************************/
+FORCE_INLINE
+void ZSTD_compressBlock_lazy_generic(ZSTD_CCtx *ctx, const void *src, size_t srcSize, const U32 searchMethod, const U32 depth)
+{
+	seqStore_t *seqStorePtr = &(ctx->seqStore);
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - 8;
+	const BYTE *const base = ctx->base + ctx->dictLimit;
+
+	U32 const maxSearches = 1 << ctx->params.cParams.searchLog;
+	U32 const mls = ctx->params.cParams.searchLength;
+
+	typedef size_t (*searchMax_f)(ZSTD_CCtx * zc, const BYTE *ip, const BYTE *iLimit, size_t *offsetPtr, U32 maxNbAttempts, U32 matchLengthSearch);
+	searchMax_f const searchMax = searchMethod ? ZSTD_BtFindBestMatch_selectMLS : ZSTD_HcFindBestMatch_selectMLS;
+	U32 offset_1 = ctx->rep[0], offset_2 = ctx->rep[1], savedOffset = 0;
+
+	/* init */
+	ip += (ip == base);
+	ctx->nextToUpdate3 = ctx->nextToUpdate;
+	{
+		U32 const maxRep = (U32)(ip - base);
+		if (offset_2 > maxRep)
+			savedOffset = offset_2, offset_2 = 0;
+		if (offset_1 > maxRep)
+			savedOffset = offset_1, offset_1 = 0;
+	}
+
+	/* Match Loop */
+	while (ip < ilimit) {
+		size_t matchLength = 0;
+		size_t offset = 0;
+		const BYTE *start = ip + 1;
+
+		/* check repCode */
+		if ((offset_1 > 0) & (ZSTD_read32(ip + 1) == ZSTD_read32(ip + 1 - offset_1))) {
+			/* repcode : we take it */
+			matchLength = ZSTD_count(ip + 1 + EQUAL_READ32, ip + 1 + EQUAL_READ32 - offset_1, iend) + EQUAL_READ32;
+			if (depth == 0)
+				goto _storeSequence;
+		}
+
+		/* first search (depth 0) */
+		{
+			size_t offsetFound = 99999999;
+			size_t const ml2 = searchMax(ctx, ip, iend, &offsetFound, maxSearches, mls);
+			if (ml2 > matchLength)
+				matchLength = ml2, start = ip, offset = offsetFound;
+		}
+
+		if (matchLength < EQUAL_READ32) {
+			ip += ((ip - anchor) >> g_searchStrength) + 1; /* jump faster over incompressible sections */
+			continue;
+		}
+
+		/* let's try to find a better solution */
+		if (depth >= 1)
+			while (ip < ilimit) {
+				ip++;
+				if ((offset) && ((offset_1 > 0) & (ZSTD_read32(ip) == ZSTD_read32(ip - offset_1)))) {
+					size_t const mlRep = ZSTD_count(ip + EQUAL_READ32, ip + EQUAL_READ32 - offset_1, iend) + EQUAL_READ32;
+					int const gain2 = (int)(mlRep * 3);
+					int const gain1 = (int)(matchLength * 3 - ZSTD_highbit32((U32)offset + 1) + 1);
+					if ((mlRep >= EQUAL_READ32) && (gain2 > gain1))
+						matchLength = mlRep, offset = 0, start = ip;
+				}
+				{
+					size_t offset2 = 99999999;
+					size_t const ml2 = searchMax(ctx, ip, iend, &offset2, maxSearches, mls);
+					int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
+					int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 4);
+					if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
+						matchLength = ml2, offset = offset2, start = ip;
+						continue; /* search a better one */
+					}
+				}
+
+				/* let's find an even better one */
+				if ((depth == 2) && (ip < ilimit)) {
+					ip++;
+					if ((offset) && ((offset_1 > 0) & (ZSTD_read32(ip) == ZSTD_read32(ip - offset_1)))) {
+						size_t const ml2 = ZSTD_count(ip + EQUAL_READ32, ip + EQUAL_READ32 - offset_1, iend) + EQUAL_READ32;
+						int const gain2 = (int)(ml2 * 4);
+						int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 1);
+						if ((ml2 >= EQUAL_READ32) && (gain2 > gain1))
+							matchLength = ml2, offset = 0, start = ip;
+					}
+					{
+						size_t offset2 = 99999999;
+						size_t const ml2 = searchMax(ctx, ip, iend, &offset2, maxSearches, mls);
+						int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
+						int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 7);
+						if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
+							matchLength = ml2, offset = offset2, start = ip;
+							continue;
+						}
+					}
+				}
+				break; /* nothing found : store previous solution */
+			}
+
+		/* NOTE:
+		 * start[-offset+ZSTD_REP_MOVE-1] is undefined behavior.
+		 * (-offset+ZSTD_REP_MOVE-1) is unsigned, and is added to start, which
+		 * overflows the pointer, which is undefined behavior.
+		 */
+		/* catch up */
+		if (offset) {
+			while ((start > anchor) && (start > base + offset - ZSTD_REP_MOVE) &&
+			       (start[-1] == (start-offset+ZSTD_REP_MOVE)[-1])) /* only search for offset within prefix */
+			{
+				start--;
+				matchLength++;
+			}
+			offset_2 = offset_1;
+			offset_1 = (U32)(offset - ZSTD_REP_MOVE);
+		}
+
+	/* store sequence */
+_storeSequence:
+		{
+			size_t const litLength = start - anchor;
+			ZSTD_storeSeq(seqStorePtr, litLength, anchor, (U32)offset, matchLength - MINMATCH);
+			anchor = ip = start + matchLength;
+		}
+
+		/* check immediate repcode */
+		while ((ip <= ilimit) && ((offset_2 > 0) & (ZSTD_read32(ip) == ZSTD_read32(ip - offset_2)))) {
+			/* store sequence */
+			matchLength = ZSTD_count(ip + EQUAL_READ32, ip + EQUAL_READ32 - offset_2, iend) + EQUAL_READ32;
+			offset = offset_2;
+			offset_2 = offset_1;
+			offset_1 = (U32)offset; /* swap repcodes */
+			ZSTD_storeSeq(seqStorePtr, 0, anchor, 0, matchLength - MINMATCH);
+			ip += matchLength;
+			anchor = ip;
+			continue; /* faster when present ... (?) */
+		}
+	}
+
+	/* Save reps for next block */
+	ctx->repToConfirm[0] = offset_1 ? offset_1 : savedOffset;
+	ctx->repToConfirm[1] = offset_2 ? offset_2 : savedOffset;
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+static void ZSTD_compressBlock_btlazy2(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_generic(ctx, src, srcSize, 1, 2); }
+
+static void ZSTD_compressBlock_lazy2(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_generic(ctx, src, srcSize, 0, 2); }
+
+static void ZSTD_compressBlock_lazy(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_generic(ctx, src, srcSize, 0, 1); }
+
+static void ZSTD_compressBlock_greedy(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_generic(ctx, src, srcSize, 0, 0); }
+
+FORCE_INLINE
+void ZSTD_compressBlock_lazy_extDict_generic(ZSTD_CCtx *ctx, const void *src, size_t srcSize, const U32 searchMethod, const U32 depth)
+{
+	seqStore_t *seqStorePtr = &(ctx->seqStore);
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - 8;
+	const BYTE *const base = ctx->base;
+	const U32 dictLimit = ctx->dictLimit;
+	const U32 lowestIndex = ctx->lowLimit;
+	const BYTE *const prefixStart = base + dictLimit;
+	const BYTE *const dictBase = ctx->dictBase;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const BYTE *const dictStart = dictBase + ctx->lowLimit;
+
+	const U32 maxSearches = 1 << ctx->params.cParams.searchLog;
+	const U32 mls = ctx->params.cParams.searchLength;
+
+	typedef size_t (*searchMax_f)(ZSTD_CCtx * zc, const BYTE *ip, const BYTE *iLimit, size_t *offsetPtr, U32 maxNbAttempts, U32 matchLengthSearch);
+	searchMax_f searchMax = searchMethod ? ZSTD_BtFindBestMatch_selectMLS_extDict : ZSTD_HcFindBestMatch_extDict_selectMLS;
+
+	U32 offset_1 = ctx->rep[0], offset_2 = ctx->rep[1];
+
+	/* init */
+	ctx->nextToUpdate3 = ctx->nextToUpdate;
+	ip += (ip == prefixStart);
+
+	/* Match Loop */
+	while (ip < ilimit) {
+		size_t matchLength = 0;
+		size_t offset = 0;
+		const BYTE *start = ip + 1;
+		U32 curr = (U32)(ip - base);
+
+		/* check repCode */
+		{
+			const U32 repIndex = (U32)(curr + 1 - offset_1);
+			const BYTE *const repBase = repIndex < dictLimit ? dictBase : base;
+			const BYTE *const repMatch = repBase + repIndex;
+			if (((U32)((dictLimit - 1) - repIndex) >= 3) & (repIndex > lowestIndex)) /* intentional overflow */
+				if (ZSTD_read32(ip + 1) == ZSTD_read32(repMatch)) {
+					/* repcode detected we should take it */
+					const BYTE *const repEnd = repIndex < dictLimit ? dictEnd : iend;
+					matchLength =
+					    ZSTD_count_2segments(ip + 1 + EQUAL_READ32, repMatch + EQUAL_READ32, iend, repEnd, prefixStart) + EQUAL_READ32;
+					if (depth == 0)
+						goto _storeSequence;
+				}
+		}
+
+		/* first search (depth 0) */
+		{
+			size_t offsetFound = 99999999;
+			size_t const ml2 = searchMax(ctx, ip, iend, &offsetFound, maxSearches, mls);
+			if (ml2 > matchLength)
+				matchLength = ml2, start = ip, offset = offsetFound;
+		}
+
+		if (matchLength < EQUAL_READ32) {
+			ip += ((ip - anchor) >> g_searchStrength) + 1; /* jump faster over incompressible sections */
+			continue;
+		}
+
+		/* let's try to find a better solution */
+		if (depth >= 1)
+			while (ip < ilimit) {
+				ip++;
+				curr++;
+				/* check repCode */
+				if (offset) {
+					const U32 repIndex = (U32)(curr - offset_1);
+					const BYTE *const repBase = repIndex < dictLimit ? dictBase : base;
+					const BYTE *const repMatch = repBase + repIndex;
+					if (((U32)((dictLimit - 1) - repIndex) >= 3) & (repIndex > lowestIndex)) /* intentional overflow */
+						if (ZSTD_read32(ip) == ZSTD_read32(repMatch)) {
+							/* repcode detected */
+							const BYTE *const repEnd = repIndex < dictLimit ? dictEnd : iend;
+							size_t const repLength =
+							    ZSTD_count_2segments(ip + EQUAL_READ32, repMatch + EQUAL_READ32, iend, repEnd, prefixStart) +
+							    EQUAL_READ32;
+							int const gain2 = (int)(repLength * 3);
+							int const gain1 = (int)(matchLength * 3 - ZSTD_highbit32((U32)offset + 1) + 1);
+							if ((repLength >= EQUAL_READ32) && (gain2 > gain1))
+								matchLength = repLength, offset = 0, start = ip;
+						}
+				}
+
+				/* search match, depth 1 */
+				{
+					size_t offset2 = 99999999;
+					size_t const ml2 = searchMax(ctx, ip, iend, &offset2, maxSearches, mls);
+					int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
+					int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 4);
+					if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
+						matchLength = ml2, offset = offset2, start = ip;
+						continue; /* search a better one */
+					}
+				}
+
+				/* let's find an even better one */
+				if ((depth == 2) && (ip < ilimit)) {
+					ip++;
+					curr++;
+					/* check repCode */
+					if (offset) {
+						const U32 repIndex = (U32)(curr - offset_1);
+						const BYTE *const repBase = repIndex < dictLimit ? dictBase : base;
+						const BYTE *const repMatch = repBase + repIndex;
+						if (((U32)((dictLimit - 1) - repIndex) >= 3) & (repIndex > lowestIndex)) /* intentional overflow */
+							if (ZSTD_read32(ip) == ZSTD_read32(repMatch)) {
+								/* repcode detected */
+								const BYTE *const repEnd = repIndex < dictLimit ? dictEnd : iend;
+								size_t repLength = ZSTD_count_2segments(ip + EQUAL_READ32, repMatch + EQUAL_READ32, iend,
+													repEnd, prefixStart) +
+										   EQUAL_READ32;
+								int gain2 = (int)(repLength * 4);
+								int gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 1);
+								if ((repLength >= EQUAL_READ32) && (gain2 > gain1))
+									matchLength = repLength, offset = 0, start = ip;
+							}
+					}
+
+					/* search match, depth 2 */
+					{
+						size_t offset2 = 99999999;
+						size_t const ml2 = searchMax(ctx, ip, iend, &offset2, maxSearches, mls);
+						int const gain2 = (int)(ml2 * 4 - ZSTD_highbit32((U32)offset2 + 1)); /* raw approx */
+						int const gain1 = (int)(matchLength * 4 - ZSTD_highbit32((U32)offset + 1) + 7);
+						if ((ml2 >= EQUAL_READ32) && (gain2 > gain1)) {
+							matchLength = ml2, offset = offset2, start = ip;
+							continue;
+						}
+					}
+				}
+				break; /* nothing found : store previous solution */
+			}
+
+		/* catch up */
+		if (offset) {
+			U32 const matchIndex = (U32)((start - base) - (offset - ZSTD_REP_MOVE));
+			const BYTE *match = (matchIndex < dictLimit) ? dictBase + matchIndex : base + matchIndex;
+			const BYTE *const mStart = (matchIndex < dictLimit) ? dictStart : prefixStart;
+			while ((start > anchor) && (match > mStart) && (start[-1] == match[-1])) {
+				start--;
+				match--;
+				matchLength++;
+			} /* catch up */
+			offset_2 = offset_1;
+			offset_1 = (U32)(offset - ZSTD_REP_MOVE);
+		}
+
+	/* store sequence */
+	_storeSequence : {
+		size_t const litLength = start - anchor;
+		ZSTD_storeSeq(seqStorePtr, litLength, anchor, (U32)offset, matchLength - MINMATCH);
+		anchor = ip = start + matchLength;
+	}
+
+		/* check immediate repcode */
+		while (ip <= ilimit) {
+			const U32 repIndex = (U32)((ip - base) - offset_2);
+			const BYTE *const repBase = repIndex < dictLimit ? dictBase : base;
+			const BYTE *const repMatch = repBase + repIndex;
+			if (((U32)((dictLimit - 1) - repIndex) >= 3) & (repIndex > lowestIndex)) /* intentional overflow */
+				if (ZSTD_read32(ip) == ZSTD_read32(repMatch)) {
+					/* repcode detected we should take it */
+					const BYTE *const repEnd = repIndex < dictLimit ? dictEnd : iend;
+					matchLength =
+					    ZSTD_count_2segments(ip + EQUAL_READ32, repMatch + EQUAL_READ32, iend, repEnd, prefixStart) + EQUAL_READ32;
+					offset = offset_2;
+					offset_2 = offset_1;
+					offset_1 = (U32)offset; /* swap offset history */
+					ZSTD_storeSeq(seqStorePtr, 0, anchor, 0, matchLength - MINMATCH);
+					ip += matchLength;
+					anchor = ip;
+					continue; /* faster when present ... (?) */
+				}
+			break;
+		}
+	}
+
+	/* Save reps for next block */
+	ctx->repToConfirm[0] = offset_1;
+	ctx->repToConfirm[1] = offset_2;
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+void ZSTD_compressBlock_greedy_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize) { ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 0, 0); }
+
+static void ZSTD_compressBlock_lazy_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 0, 1);
+}
+
+static void ZSTD_compressBlock_lazy2_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 0, 2);
+}
+
+static void ZSTD_compressBlock_btlazy2_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+	ZSTD_compressBlock_lazy_extDict_generic(ctx, src, srcSize, 1, 2);
+}
+
+/* The optimal parser */
+#include "zstd_opt.h"
+
+static void ZSTD_compressBlock_btopt(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+#ifdef ZSTD_OPT_H_91842398743
+	ZSTD_compressBlock_opt_generic(ctx, src, srcSize, 0);
+#else
+	(void)ctx;
+	(void)src;
+	(void)srcSize;
+	return;
+#endif
+}
+
+static void ZSTD_compressBlock_btopt2(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+#ifdef ZSTD_OPT_H_91842398743
+	ZSTD_compressBlock_opt_generic(ctx, src, srcSize, 1);
+#else
+	(void)ctx;
+	(void)src;
+	(void)srcSize;
+	return;
+#endif
+}
+
+static void ZSTD_compressBlock_btopt_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+#ifdef ZSTD_OPT_H_91842398743
+	ZSTD_compressBlock_opt_extDict_generic(ctx, src, srcSize, 0);
+#else
+	(void)ctx;
+	(void)src;
+	(void)srcSize;
+	return;
+#endif
+}
+
+static void ZSTD_compressBlock_btopt2_extDict(ZSTD_CCtx *ctx, const void *src, size_t srcSize)
+{
+#ifdef ZSTD_OPT_H_91842398743
+	ZSTD_compressBlock_opt_extDict_generic(ctx, src, srcSize, 1);
+#else
+	(void)ctx;
+	(void)src;
+	(void)srcSize;
+	return;
+#endif
+}
+
+typedef void (*ZSTD_blockCompressor)(ZSTD_CCtx *ctx, const void *src, size_t srcSize);
+
+static ZSTD_blockCompressor ZSTD_selectBlockCompressor(ZSTD_strategy strat, int extDict)
+{
+	static const ZSTD_blockCompressor blockCompressor[2][8] = {
+	    {ZSTD_compressBlock_fast, ZSTD_compressBlock_doubleFast, ZSTD_compressBlock_greedy, ZSTD_compressBlock_lazy, ZSTD_compressBlock_lazy2,
+	     ZSTD_compressBlock_btlazy2, ZSTD_compressBlock_btopt, ZSTD_compressBlock_btopt2},
+	    {ZSTD_compressBlock_fast_extDict, ZSTD_compressBlock_doubleFast_extDict, ZSTD_compressBlock_greedy_extDict, ZSTD_compressBlock_lazy_extDict,
+	     ZSTD_compressBlock_lazy2_extDict, ZSTD_compressBlock_btlazy2_extDict, ZSTD_compressBlock_btopt_extDict, ZSTD_compressBlock_btopt2_extDict}};
+
+	return blockCompressor[extDict][(U32)strat];
+}
+
+static size_t ZSTD_compressBlock_internal(ZSTD_CCtx *zc, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	ZSTD_blockCompressor const blockCompressor = ZSTD_selectBlockCompressor(zc->params.cParams.strategy, zc->lowLimit < zc->dictLimit);
+	const BYTE *const base = zc->base;
+	const BYTE *const istart = (const BYTE *)src;
+	const U32 curr = (U32)(istart - base);
+	if (srcSize < MIN_CBLOCK_SIZE + ZSTD_blockHeaderSize + 1)
+		return 0; /* don't even attempt compression below a certain srcSize */
+	ZSTD_resetSeqStore(&(zc->seqStore));
+	if (curr > zc->nextToUpdate + 384)
+		zc->nextToUpdate = curr - MIN(192, (U32)(curr - zc->nextToUpdate - 384)); /* update tree not updated after finding very long rep matches */
+	blockCompressor(zc, src, srcSize);
+	return ZSTD_compressSequences(zc, dst, dstCapacity, srcSize);
+}
+
+/*! ZSTD_compress_generic() :
+*   Compress a chunk of data into one or multiple blocks.
+*   All blocks will be terminated, all input will be consumed.
+*   Function will issue an error if there is not enough `dstCapacity` to hold the compressed content.
+*   Frame is supposed already started (header already produced)
+*   @return : compressed size, or an error code
+*/
+static size_t ZSTD_compress_generic(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, U32 lastFrameChunk)
+{
+	size_t blockSize = cctx->blockSize;
+	size_t remaining = srcSize;
+	const BYTE *ip = (const BYTE *)src;
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *op = ostart;
+	U32 const maxDist = 1 << cctx->params.cParams.windowLog;
+
+	if (cctx->params.fParams.checksumFlag && srcSize)
+		xxh64_update(&cctx->xxhState, src, srcSize);
+
+	while (remaining) {
+		U32 const lastBlock = lastFrameChunk & (blockSize >= remaining);
+		size_t cSize;
+
+		if (dstCapacity < ZSTD_blockHeaderSize + MIN_CBLOCK_SIZE)
+			return ERROR(dstSize_tooSmall); /* not enough space to store compressed block */
+		if (remaining < blockSize)
+			blockSize = remaining;
+
+		/* preemptive overflow correction */
+		if (cctx->lowLimit > (3U << 29)) {
+			U32 const cycleMask = (1 << ZSTD_cycleLog(cctx->params.cParams.hashLog, cctx->params.cParams.strategy)) - 1;
+			U32 const curr = (U32)(ip - cctx->base);
+			U32 const newCurr = (curr & cycleMask) + (1 << cctx->params.cParams.windowLog);
+			U32 const correction = curr - newCurr;
+			ZSTD_STATIC_ASSERT(ZSTD_WINDOWLOG_MAX_64 <= 30);
+			ZSTD_reduceIndex(cctx, correction);
+			cctx->base += correction;
+			cctx->dictBase += correction;
+			cctx->lowLimit -= correction;
+			cctx->dictLimit -= correction;
+			if (cctx->nextToUpdate < correction)
+				cctx->nextToUpdate = 0;
+			else
+				cctx->nextToUpdate -= correction;
+		}
+
+		if ((U32)(ip + blockSize - cctx->base) > cctx->loadedDictEnd + maxDist) {
+			/* enforce maxDist */
+			U32 const newLowLimit = (U32)(ip + blockSize - cctx->base) - maxDist;
+			if (cctx->lowLimit < newLowLimit)
+				cctx->lowLimit = newLowLimit;
+			if (cctx->dictLimit < cctx->lowLimit)
+				cctx->dictLimit = cctx->lowLimit;
+		}
+
+		cSize = ZSTD_compressBlock_internal(cctx, op + ZSTD_blockHeaderSize, dstCapacity - ZSTD_blockHeaderSize, ip, blockSize);
+		if (ZSTD_isError(cSize))
+			return cSize;
+
+		if (cSize == 0) { /* block is not compressible */
+			U32 const cBlockHeader24 = lastBlock + (((U32)bt_raw) << 1) + (U32)(blockSize << 3);
+			if (blockSize + ZSTD_blockHeaderSize > dstCapacity)
+				return ERROR(dstSize_tooSmall);
+			ZSTD_writeLE32(op, cBlockHeader24); /* no pb, 4th byte will be overwritten */
+			memcpy(op + ZSTD_blockHeaderSize, ip, blockSize);
+			cSize = ZSTD_blockHeaderSize + blockSize;
+		} else {
+			U32 const cBlockHeader24 = lastBlock + (((U32)bt_compressed) << 1) + (U32)(cSize << 3);
+			ZSTD_writeLE24(op, cBlockHeader24);
+			cSize += ZSTD_blockHeaderSize;
+		}
+
+		remaining -= blockSize;
+		dstCapacity -= cSize;
+		ip += blockSize;
+		op += cSize;
+	}
+
+	if (lastFrameChunk && (op > ostart))
+		cctx->stage = ZSTDcs_ending;
+	return op - ostart;
+}
+
+static size_t ZSTD_writeFrameHeader(void *dst, size_t dstCapacity, ZSTD_parameters params, U64 pledgedSrcSize, U32 dictID)
+{
+	BYTE *const op = (BYTE *)dst;
+	U32 const dictIDSizeCode = (dictID > 0) + (dictID >= 256) + (dictID >= 65536); /* 0-3 */
+	U32 const checksumFlag = params.fParams.checksumFlag > 0;
+	U32 const windowSize = 1U << params.cParams.windowLog;
+	U32 const singleSegment = params.fParams.contentSizeFlag && (windowSize >= pledgedSrcSize);
+	BYTE const windowLogByte = (BYTE)((params.cParams.windowLog - ZSTD_WINDOWLOG_ABSOLUTEMIN) << 3);
+	U32 const fcsCode =
+	    params.fParams.contentSizeFlag ? (pledgedSrcSize >= 256) + (pledgedSrcSize >= 65536 + 256) + (pledgedSrcSize >= 0xFFFFFFFFU) : 0; /* 0-3 */
+	BYTE const frameHeaderDecriptionByte = (BYTE)(dictIDSizeCode + (checksumFlag << 2) + (singleSegment << 5) + (fcsCode << 6));
+	size_t pos;
+
+	if (dstCapacity < ZSTD_frameHeaderSize_max)
+		return ERROR(dstSize_tooSmall);
+
+	ZSTD_writeLE32(dst, ZSTD_MAGICNUMBER);
+	op[4] = frameHeaderDecriptionByte;
+	pos = 5;
+	if (!singleSegment)
+		op[pos++] = windowLogByte;
+	switch (dictIDSizeCode) {
+	default: /* impossible */
+	case 0: break;
+	case 1:
+		op[pos] = (BYTE)(dictID);
+		pos++;
+		break;
+	case 2:
+		ZSTD_writeLE16(op + pos, (U16)dictID);
+		pos += 2;
+		break;
+	case 3:
+		ZSTD_writeLE32(op + pos, dictID);
+		pos += 4;
+		break;
+	}
+	switch (fcsCode) {
+	default: /* impossible */
+	case 0:
+		if (singleSegment)
+			op[pos++] = (BYTE)(pledgedSrcSize);
+		break;
+	case 1:
+		ZSTD_writeLE16(op + pos, (U16)(pledgedSrcSize - 256));
+		pos += 2;
+		break;
+	case 2:
+		ZSTD_writeLE32(op + pos, (U32)(pledgedSrcSize));
+		pos += 4;
+		break;
+	case 3:
+		ZSTD_writeLE64(op + pos, (U64)(pledgedSrcSize));
+		pos += 8;
+		break;
+	}
+	return pos;
+}
+
+static size_t ZSTD_compressContinue_internal(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, U32 frame, U32 lastFrameChunk)
+{
+	const BYTE *const ip = (const BYTE *)src;
+	size_t fhSize = 0;
+
+	if (cctx->stage == ZSTDcs_created)
+		return ERROR(stage_wrong); /* missing init (ZSTD_compressBegin) */
+
+	if (frame && (cctx->stage == ZSTDcs_init)) {
+		fhSize = ZSTD_writeFrameHeader(dst, dstCapacity, cctx->params, cctx->frameContentSize, cctx->dictID);
+		if (ZSTD_isError(fhSize))
+			return fhSize;
+		dstCapacity -= fhSize;
+		dst = (char *)dst + fhSize;
+		cctx->stage = ZSTDcs_ongoing;
+	}
+
+	/* Check if blocks follow each other */
+	if (src != cctx->nextSrc) {
+		/* not contiguous */
+		ptrdiff_t const delta = cctx->nextSrc - ip;
+		cctx->lowLimit = cctx->dictLimit;
+		cctx->dictLimit = (U32)(cctx->nextSrc - cctx->base);
+		cctx->dictBase = cctx->base;
+		cctx->base -= delta;
+		cctx->nextToUpdate = cctx->dictLimit;
+		if (cctx->dictLimit - cctx->lowLimit < HASH_READ_SIZE)
+			cctx->lowLimit = cctx->dictLimit; /* too small extDict */
+	}
+
+	/* if input and dictionary overlap : reduce dictionary (area presumed modified by input) */
+	if ((ip + srcSize > cctx->dictBase + cctx->lowLimit) & (ip < cctx->dictBase + cctx->dictLimit)) {
+		ptrdiff_t const highInputIdx = (ip + srcSize) - cctx->dictBase;
+		U32 const lowLimitMax = (highInputIdx > (ptrdiff_t)cctx->dictLimit) ? cctx->dictLimit : (U32)highInputIdx;
+		cctx->lowLimit = lowLimitMax;
+	}
+
+	cctx->nextSrc = ip + srcSize;
+
+	if (srcSize) {
+		size_t const cSize = frame ? ZSTD_compress_generic(cctx, dst, dstCapacity, src, srcSize, lastFrameChunk)
+					   : ZSTD_compressBlock_internal(cctx, dst, dstCapacity, src, srcSize);
+		if (ZSTD_isError(cSize))
+			return cSize;
+		return cSize + fhSize;
+	} else
+		return fhSize;
+}
+
+size_t ZSTD_compressContinue(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	return ZSTD_compressContinue_internal(cctx, dst, dstCapacity, src, srcSize, 1, 0);
+}
+
+size_t ZSTD_getBlockSizeMax(ZSTD_CCtx *cctx) { return MIN(ZSTD_BLOCKSIZE_ABSOLUTEMAX, 1 << cctx->params.cParams.windowLog); }
+
+size_t ZSTD_compressBlock(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	size_t const blockSizeMax = ZSTD_getBlockSizeMax(cctx);
+	if (srcSize > blockSizeMax)
+		return ERROR(srcSize_wrong);
+	return ZSTD_compressContinue_internal(cctx, dst, dstCapacity, src, srcSize, 0, 0);
+}
+
+/*! ZSTD_loadDictionaryContent() :
+ *  @return : 0, or an error code
+ */
+static size_t ZSTD_loadDictionaryContent(ZSTD_CCtx *zc, const void *src, size_t srcSize)
+{
+	const BYTE *const ip = (const BYTE *)src;
+	const BYTE *const iend = ip + srcSize;
+
+	/* input becomes curr prefix */
+	zc->lowLimit = zc->dictLimit;
+	zc->dictLimit = (U32)(zc->nextSrc - zc->base);
+	zc->dictBase = zc->base;
+	zc->base += ip - zc->nextSrc;
+	zc->nextToUpdate = zc->dictLimit;
+	zc->loadedDictEnd = zc->forceWindow ? 0 : (U32)(iend - zc->base);
+
+	zc->nextSrc = iend;
+	if (srcSize <= HASH_READ_SIZE)
+		return 0;
+
+	switch (zc->params.cParams.strategy) {
+	case ZSTD_fast: ZSTD_fillHashTable(zc, iend, zc->params.cParams.searchLength); break;
+
+	case ZSTD_dfast: ZSTD_fillDoubleHashTable(zc, iend, zc->params.cParams.searchLength); break;
+
+	case ZSTD_greedy:
+	case ZSTD_lazy:
+	case ZSTD_lazy2:
+		if (srcSize >= HASH_READ_SIZE)
+			ZSTD_insertAndFindFirstIndex(zc, iend - HASH_READ_SIZE, zc->params.cParams.searchLength);
+		break;
+
+	case ZSTD_btlazy2:
+	case ZSTD_btopt:
+	case ZSTD_btopt2:
+		if (srcSize >= HASH_READ_SIZE)
+			ZSTD_updateTree(zc, iend - HASH_READ_SIZE, iend, 1 << zc->params.cParams.searchLog, zc->params.cParams.searchLength);
+		break;
+
+	default:
+		return ERROR(GENERIC); /* strategy doesn't exist; impossible */
+	}
+
+	zc->nextToUpdate = (U32)(iend - zc->base);
+	return 0;
+}
+
+/* Dictionaries that assign zero probability to symbols that show up causes problems
+   when FSE encoding.  Refuse dictionaries that assign zero probability to symbols
+   that we may encounter during compression.
+   NOTE: This behavior is not standard and could be improved in the future. */
+static size_t ZSTD_checkDictNCount(short *normalizedCounter, unsigned dictMaxSymbolValue, unsigned maxSymbolValue)
+{
+	U32 s;
+	if (dictMaxSymbolValue < maxSymbolValue)
+		return ERROR(dictionary_corrupted);
+	for (s = 0; s <= maxSymbolValue; ++s) {
+		if (normalizedCounter[s] == 0)
+			return ERROR(dictionary_corrupted);
+	}
+	return 0;
+}
+
+/* Dictionary format :
+ * See :
+ * https://github.com/facebook/zstd/blob/master/doc/zstd_compression_format.md#dictionary-format
+ */
+/*! ZSTD_loadZstdDictionary() :
+ * @return : 0, or an error code
+ *  assumptions : magic number supposed already checked
+ *                dictSize supposed > 8
+ */
+static size_t ZSTD_loadZstdDictionary(ZSTD_CCtx *cctx, const void *dict, size_t dictSize)
+{
+	const BYTE *dictPtr = (const BYTE *)dict;
+	const BYTE *const dictEnd = dictPtr + dictSize;
+	short offcodeNCount[MaxOff + 1];
+	unsigned offcodeMaxValue = MaxOff;
+
+	dictPtr += 4; /* skip magic number */
+	cctx->dictID = cctx->params.fParams.noDictIDFlag ? 0 : ZSTD_readLE32(dictPtr);
+	dictPtr += 4;
+
+	{
+		size_t const hufHeaderSize = HUF_readCTable_wksp(cctx->hufTable, 255, dictPtr, dictEnd - dictPtr, cctx->tmpCounters, sizeof(cctx->tmpCounters));
+		if (HUF_isError(hufHeaderSize))
+			return ERROR(dictionary_corrupted);
+		dictPtr += hufHeaderSize;
+	}
+
+	{
+		unsigned offcodeLog;
+		size_t const offcodeHeaderSize = FSE_readNCount(offcodeNCount, &offcodeMaxValue, &offcodeLog, dictPtr, dictEnd - dictPtr);
+		if (FSE_isError(offcodeHeaderSize))
+			return ERROR(dictionary_corrupted);
+		if (offcodeLog > OffFSELog)
+			return ERROR(dictionary_corrupted);
+		/* Defer checking offcodeMaxValue because we need to know the size of the dictionary content */
+		CHECK_E(FSE_buildCTable_wksp(cctx->offcodeCTable, offcodeNCount, offcodeMaxValue, offcodeLog, cctx->tmpCounters, sizeof(cctx->tmpCounters)),
+			dictionary_corrupted);
+		dictPtr += offcodeHeaderSize;
+	}
+
+	{
+		short matchlengthNCount[MaxML + 1];
+		unsigned matchlengthMaxValue = MaxML, matchlengthLog;
+		size_t const matchlengthHeaderSize = FSE_readNCount(matchlengthNCount, &matchlengthMaxValue, &matchlengthLog, dictPtr, dictEnd - dictPtr);
+		if (FSE_isError(matchlengthHeaderSize))
+			return ERROR(dictionary_corrupted);
+		if (matchlengthLog > MLFSELog)
+			return ERROR(dictionary_corrupted);
+		/* Every match length code must have non-zero probability */
+		CHECK_F(ZSTD_checkDictNCount(matchlengthNCount, matchlengthMaxValue, MaxML));
+		CHECK_E(
+		    FSE_buildCTable_wksp(cctx->matchlengthCTable, matchlengthNCount, matchlengthMaxValue, matchlengthLog, cctx->tmpCounters, sizeof(cctx->tmpCounters)),
+		    dictionary_corrupted);
+		dictPtr += matchlengthHeaderSize;
+	}
+
+	{
+		short litlengthNCount[MaxLL + 1];
+		unsigned litlengthMaxValue = MaxLL, litlengthLog;
+		size_t const litlengthHeaderSize = FSE_readNCount(litlengthNCount, &litlengthMaxValue, &litlengthLog, dictPtr, dictEnd - dictPtr);
+		if (FSE_isError(litlengthHeaderSize))
+			return ERROR(dictionary_corrupted);
+		if (litlengthLog > LLFSELog)
+			return ERROR(dictionary_corrupted);
+		/* Every literal length code must have non-zero probability */
+		CHECK_F(ZSTD_checkDictNCount(litlengthNCount, litlengthMaxValue, MaxLL));
+		CHECK_E(FSE_buildCTable_wksp(cctx->litlengthCTable, litlengthNCount, litlengthMaxValue, litlengthLog, cctx->tmpCounters, sizeof(cctx->tmpCounters)),
+			dictionary_corrupted);
+		dictPtr += litlengthHeaderSize;
+	}
+
+	if (dictPtr + 12 > dictEnd)
+		return ERROR(dictionary_corrupted);
+	cctx->rep[0] = ZSTD_readLE32(dictPtr + 0);
+	cctx->rep[1] = ZSTD_readLE32(dictPtr + 4);
+	cctx->rep[2] = ZSTD_readLE32(dictPtr + 8);
+	dictPtr += 12;
+
+	{
+		size_t const dictContentSize = (size_t)(dictEnd - dictPtr);
+		U32 offcodeMax = MaxOff;
+		if (dictContentSize <= ((U32)-1) - 128 KB) {
+			U32 const maxOffset = (U32)dictContentSize + 128 KB; /* The maximum offset that must be supported */
+			offcodeMax = ZSTD_highbit32(maxOffset);		     /* Calculate minimum offset code required to represent maxOffset */
+		}
+		/* All offset values <= dictContentSize + 128 KB must be representable */
+		CHECK_F(ZSTD_checkDictNCount(offcodeNCount, offcodeMaxValue, MIN(offcodeMax, MaxOff)));
+		/* All repCodes must be <= dictContentSize and != 0*/
+		{
+			U32 u;
+			for (u = 0; u < 3; u++) {
+				if (cctx->rep[u] == 0)
+					return ERROR(dictionary_corrupted);
+				if (cctx->rep[u] > dictContentSize)
+					return ERROR(dictionary_corrupted);
+			}
+		}
+
+		cctx->flagStaticTables = 1;
+		cctx->flagStaticHufTable = HUF_repeat_valid;
+		return ZSTD_loadDictionaryContent(cctx, dictPtr, dictContentSize);
+	}
+}
+
+/** ZSTD_compress_insertDictionary() :
+*   @return : 0, or an error code */
+static size_t ZSTD_compress_insertDictionary(ZSTD_CCtx *cctx, const void *dict, size_t dictSize)
+{
+	if ((dict == NULL) || (dictSize <= 8))
+		return 0;
+
+	/* dict as pure content */
+	if ((ZSTD_readLE32(dict) != ZSTD_DICT_MAGIC) || (cctx->forceRawDict))
+		return ZSTD_loadDictionaryContent(cctx, dict, dictSize);
+
+	/* dict as zstd dictionary */
+	return ZSTD_loadZstdDictionary(cctx, dict, dictSize);
+}
+
+/*! ZSTD_compressBegin_internal() :
+*   @return : 0, or an error code */
+static size_t ZSTD_compressBegin_internal(ZSTD_CCtx *cctx, const void *dict, size_t dictSize, ZSTD_parameters params, U64 pledgedSrcSize)
+{
+	ZSTD_compResetPolicy_e const crp = dictSize ? ZSTDcrp_fullReset : ZSTDcrp_continue;
+	CHECK_F(ZSTD_resetCCtx_advanced(cctx, params, pledgedSrcSize, crp));
+	return ZSTD_compress_insertDictionary(cctx, dict, dictSize);
+}
+
+/*! ZSTD_compressBegin_advanced() :
+*   @return : 0, or an error code */
+size_t ZSTD_compressBegin_advanced(ZSTD_CCtx *cctx, const void *dict, size_t dictSize, ZSTD_parameters params, unsigned long long pledgedSrcSize)
+{
+	/* compression parameters verification and optimization */
+	CHECK_F(ZSTD_checkCParams(params.cParams));
+	return ZSTD_compressBegin_internal(cctx, dict, dictSize, params, pledgedSrcSize);
+}
+
+size_t ZSTD_compressBegin_usingDict(ZSTD_CCtx *cctx, const void *dict, size_t dictSize, int compressionLevel)
+{
+	ZSTD_parameters const params = ZSTD_getParams(compressionLevel, 0, dictSize);
+	return ZSTD_compressBegin_internal(cctx, dict, dictSize, params, 0);
+}
+
+size_t ZSTD_compressBegin(ZSTD_CCtx *cctx, int compressionLevel) { return ZSTD_compressBegin_usingDict(cctx, NULL, 0, compressionLevel); }
+
+/*! ZSTD_writeEpilogue() :
+*   Ends a frame.
+*   @return : nb of bytes written into dst (or an error code) */
+static size_t ZSTD_writeEpilogue(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity)
+{
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *op = ostart;
+	size_t fhSize = 0;
+
+	if (cctx->stage == ZSTDcs_created)
+		return ERROR(stage_wrong); /* init missing */
+
+	/* special case : empty frame */
+	if (cctx->stage == ZSTDcs_init) {
+		fhSize = ZSTD_writeFrameHeader(dst, dstCapacity, cctx->params, 0, 0);
+		if (ZSTD_isError(fhSize))
+			return fhSize;
+		dstCapacity -= fhSize;
+		op += fhSize;
+		cctx->stage = ZSTDcs_ongoing;
+	}
+
+	if (cctx->stage != ZSTDcs_ending) {
+		/* write one last empty block, make it the "last" block */
+		U32 const cBlockHeader24 = 1 /* last block */ + (((U32)bt_raw) << 1) + 0;
+		if (dstCapacity < 4)
+			return ERROR(dstSize_tooSmall);
+		ZSTD_writeLE32(op, cBlockHeader24);
+		op += ZSTD_blockHeaderSize;
+		dstCapacity -= ZSTD_blockHeaderSize;
+	}
+
+	if (cctx->params.fParams.checksumFlag) {
+		U32 const checksum = (U32)xxh64_digest(&cctx->xxhState);
+		if (dstCapacity < 4)
+			return ERROR(dstSize_tooSmall);
+		ZSTD_writeLE32(op, checksum);
+		op += 4;
+	}
+
+	cctx->stage = ZSTDcs_created; /* return to "created but no init" status */
+	return op - ostart;
+}
+
+size_t ZSTD_compressEnd(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	size_t endResult;
+	size_t const cSize = ZSTD_compressContinue_internal(cctx, dst, dstCapacity, src, srcSize, 1, 1);
+	if (ZSTD_isError(cSize))
+		return cSize;
+	endResult = ZSTD_writeEpilogue(cctx, (char *)dst + cSize, dstCapacity - cSize);
+	if (ZSTD_isError(endResult))
+		return endResult;
+	return cSize + endResult;
+}
+
+static size_t ZSTD_compress_internal(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, const void *dict, size_t dictSize,
+				     ZSTD_parameters params)
+{
+	CHECK_F(ZSTD_compressBegin_internal(cctx, dict, dictSize, params, srcSize));
+	return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);
+}
+
+size_t ZSTD_compress_usingDict(ZSTD_CCtx *ctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, const void *dict, size_t dictSize,
+			       ZSTD_parameters params)
+{
+	return ZSTD_compress_internal(ctx, dst, dstCapacity, src, srcSize, dict, dictSize, params);
+}
+
+size_t ZSTD_compressCCtx(ZSTD_CCtx *ctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, ZSTD_parameters params)
+{
+	return ZSTD_compress_internal(ctx, dst, dstCapacity, src, srcSize, NULL, 0, params);
+}
+
+/* =====  Dictionary API  ===== */
+
+struct ZSTD_CDict_s {
+	void *dictBuffer;
+	const void *dictContent;
+	size_t dictContentSize;
+	ZSTD_CCtx *refContext;
+}; /* typedef'd tp ZSTD_CDict within "zstd.h" */
+
+size_t ZSTD_CDictWorkspaceBound(ZSTD_compressionParameters cParams) { return ZSTD_CCtxWorkspaceBound(cParams) + ZSTD_ALIGN(sizeof(ZSTD_CDict)); }
+
+static ZSTD_CDict *ZSTD_createCDict_advanced(const void *dictBuffer, size_t dictSize, unsigned byReference, ZSTD_parameters params, ZSTD_customMem customMem)
+{
+	if (!customMem.customAlloc || !customMem.customFree)
+		return NULL;
+
+	{
+		ZSTD_CDict *const cdict = (ZSTD_CDict *)ZSTD_malloc(sizeof(ZSTD_CDict), customMem);
+		ZSTD_CCtx *const cctx = ZSTD_createCCtx_advanced(customMem);
+
+		if (!cdict || !cctx) {
+			ZSTD_free(cdict, customMem);
+			ZSTD_freeCCtx(cctx);
+			return NULL;
+		}
+
+		if ((byReference) || (!dictBuffer) || (!dictSize)) {
+			cdict->dictBuffer = NULL;
+			cdict->dictContent = dictBuffer;
+		} else {
+			void *const internalBuffer = ZSTD_malloc(dictSize, customMem);
+			if (!internalBuffer) {
+				ZSTD_free(cctx, customMem);
+				ZSTD_free(cdict, customMem);
+				return NULL;
+			}
+			memcpy(internalBuffer, dictBuffer, dictSize);
+			cdict->dictBuffer = internalBuffer;
+			cdict->dictContent = internalBuffer;
+		}
+
+		{
+			size_t const errorCode = ZSTD_compressBegin_advanced(cctx, cdict->dictContent, dictSize, params, 0);
+			if (ZSTD_isError(errorCode)) {
+				ZSTD_free(cdict->dictBuffer, customMem);
+				ZSTD_free(cdict, customMem);
+				ZSTD_freeCCtx(cctx);
+				return NULL;
+			}
+		}
+
+		cdict->refContext = cctx;
+		cdict->dictContentSize = dictSize;
+		return cdict;
+	}
+}
+
+ZSTD_CDict *ZSTD_initCDict(const void *dict, size_t dictSize, ZSTD_parameters params, void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem const stackMem = ZSTD_initStack(workspace, workspaceSize);
+	return ZSTD_createCDict_advanced(dict, dictSize, 1, params, stackMem);
+}
+
+size_t ZSTD_freeCDict(ZSTD_CDict *cdict)
+{
+	if (cdict == NULL)
+		return 0; /* support free on NULL */
+	{
+		ZSTD_customMem const cMem = cdict->refContext->customMem;
+		ZSTD_freeCCtx(cdict->refContext);
+		ZSTD_free(cdict->dictBuffer, cMem);
+		ZSTD_free(cdict, cMem);
+		return 0;
+	}
+}
+
+static ZSTD_parameters ZSTD_getParamsFromCDict(const ZSTD_CDict *cdict) { return ZSTD_getParamsFromCCtx(cdict->refContext); }
+
+size_t ZSTD_compressBegin_usingCDict(ZSTD_CCtx *cctx, const ZSTD_CDict *cdict, unsigned long long pledgedSrcSize)
+{
+	if (cdict->dictContentSize)
+		CHECK_F(ZSTD_copyCCtx(cctx, cdict->refContext, pledgedSrcSize))
+	else {
+		ZSTD_parameters params = cdict->refContext->params;
+		params.fParams.contentSizeFlag = (pledgedSrcSize > 0);
+		CHECK_F(ZSTD_compressBegin_advanced(cctx, NULL, 0, params, pledgedSrcSize));
+	}
+	return 0;
+}
+
+/*! ZSTD_compress_usingCDict() :
+*   Compression using a digested Dictionary.
+*   Faster startup than ZSTD_compress_usingDict(), recommended when same dictionary is used multiple times.
+*   Note that compression level is decided during dictionary creation */
+size_t ZSTD_compress_usingCDict(ZSTD_CCtx *cctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, const ZSTD_CDict *cdict)
+{
+	CHECK_F(ZSTD_compressBegin_usingCDict(cctx, cdict, srcSize));
+
+	if (cdict->refContext->params.fParams.contentSizeFlag == 1) {
+		cctx->params.fParams.contentSizeFlag = 1;
+		cctx->frameContentSize = srcSize;
+	} else {
+		cctx->params.fParams.contentSizeFlag = 0;
+	}
+
+	return ZSTD_compressEnd(cctx, dst, dstCapacity, src, srcSize);
+}
+
+/* ******************************************************************
+*  Streaming
+********************************************************************/
+
+typedef enum { zcss_init, zcss_load, zcss_flush, zcss_final } ZSTD_cStreamStage;
+
+struct ZSTD_CStream_s {
+	ZSTD_CCtx *cctx;
+	ZSTD_CDict *cdictLocal;
+	const ZSTD_CDict *cdict;
+	char *inBuff;
+	size_t inBuffSize;
+	size_t inToCompress;
+	size_t inBuffPos;
+	size_t inBuffTarget;
+	size_t blockSize;
+	char *outBuff;
+	size_t outBuffSize;
+	size_t outBuffContentSize;
+	size_t outBuffFlushedSize;
+	ZSTD_cStreamStage stage;
+	U32 checksum;
+	U32 frameEnded;
+	U64 pledgedSrcSize;
+	U64 inputProcessed;
+	ZSTD_parameters params;
+	ZSTD_customMem customMem;
+}; /* typedef'd to ZSTD_CStream within "zstd.h" */
+
+size_t ZSTD_CStreamWorkspaceBound(ZSTD_compressionParameters cParams)
+{
+	size_t const inBuffSize = (size_t)1 << cParams.windowLog;
+	size_t const blockSize = MIN(ZSTD_BLOCKSIZE_ABSOLUTEMAX, inBuffSize);
+	size_t const outBuffSize = ZSTD_compressBound(blockSize) + 1;
+
+	return ZSTD_CCtxWorkspaceBound(cParams) + ZSTD_ALIGN(sizeof(ZSTD_CStream)) + ZSTD_ALIGN(inBuffSize) + ZSTD_ALIGN(outBuffSize);
+}
+
+ZSTD_CStream *ZSTD_createCStream_advanced(ZSTD_customMem customMem)
+{
+	ZSTD_CStream *zcs;
+
+	if (!customMem.customAlloc || !customMem.customFree)
+		return NULL;
+
+	zcs = (ZSTD_CStream *)ZSTD_malloc(sizeof(ZSTD_CStream), customMem);
+	if (zcs == NULL)
+		return NULL;
+	memset(zcs, 0, sizeof(ZSTD_CStream));
+	memcpy(&zcs->customMem, &customMem, sizeof(ZSTD_customMem));
+	zcs->cctx = ZSTD_createCCtx_advanced(customMem);
+	if (zcs->cctx == NULL) {
+		ZSTD_freeCStream(zcs);
+		return NULL;
+	}
+	return zcs;
+}
+
+size_t ZSTD_freeCStream(ZSTD_CStream *zcs)
+{
+	if (zcs == NULL)
+		return 0; /* support free on NULL */
+	{
+		ZSTD_customMem const cMem = zcs->customMem;
+		ZSTD_freeCCtx(zcs->cctx);
+		zcs->cctx = NULL;
+		ZSTD_freeCDict(zcs->cdictLocal);
+		zcs->cdictLocal = NULL;
+		ZSTD_free(zcs->inBuff, cMem);
+		zcs->inBuff = NULL;
+		ZSTD_free(zcs->outBuff, cMem);
+		zcs->outBuff = NULL;
+		ZSTD_free(zcs, cMem);
+		return 0;
+	}
+}
+
+/*======   Initialization   ======*/
+
+size_t ZSTD_CStreamInSize(void) { return ZSTD_BLOCKSIZE_ABSOLUTEMAX; }
+size_t ZSTD_CStreamOutSize(void) { return ZSTD_compressBound(ZSTD_BLOCKSIZE_ABSOLUTEMAX) + ZSTD_blockHeaderSize + 4 /* 32-bits hash */; }
+
+static size_t ZSTD_resetCStream_internal(ZSTD_CStream *zcs, unsigned long long pledgedSrcSize)
+{
+	if (zcs->inBuffSize == 0)
+		return ERROR(stage_wrong); /* zcs has not been init at least once => can't reset */
+
+	if (zcs->cdict)
+		CHECK_F(ZSTD_compressBegin_usingCDict(zcs->cctx, zcs->cdict, pledgedSrcSize))
+	else
+		CHECK_F(ZSTD_compressBegin_advanced(zcs->cctx, NULL, 0, zcs->params, pledgedSrcSize));
+
+	zcs->inToCompress = 0;
+	zcs->inBuffPos = 0;
+	zcs->inBuffTarget = zcs->blockSize;
+	zcs->outBuffContentSize = zcs->outBuffFlushedSize = 0;
+	zcs->stage = zcss_load;
+	zcs->frameEnded = 0;
+	zcs->pledgedSrcSize = pledgedSrcSize;
+	zcs->inputProcessed = 0;
+	return 0; /* ready to go */
+}
+
+size_t ZSTD_resetCStream(ZSTD_CStream *zcs, unsigned long long pledgedSrcSize)
+{
+
+	zcs->params.fParams.contentSizeFlag = (pledgedSrcSize > 0);
+
+	return ZSTD_resetCStream_internal(zcs, pledgedSrcSize);
+}
+
+static size_t ZSTD_initCStream_advanced(ZSTD_CStream *zcs, const void *dict, size_t dictSize, ZSTD_parameters params, unsigned long long pledgedSrcSize)
+{
+	/* allocate buffers */
+	{
+		size_t const neededInBuffSize = (size_t)1 << params.cParams.windowLog;
+		if (zcs->inBuffSize < neededInBuffSize) {
+			zcs->inBuffSize = neededInBuffSize;
+			ZSTD_free(zcs->inBuff, zcs->customMem);
+			zcs->inBuff = (char *)ZSTD_malloc(neededInBuffSize, zcs->customMem);
+			if (zcs->inBuff == NULL)
+				return ERROR(memory_allocation);
+		}
+		zcs->blockSize = MIN(ZSTD_BLOCKSIZE_ABSOLUTEMAX, neededInBuffSize);
+	}
+	if (zcs->outBuffSize < ZSTD_compressBound(zcs->blockSize) + 1) {
+		zcs->outBuffSize = ZSTD_compressBound(zcs->blockSize) + 1;
+		ZSTD_free(zcs->outBuff, zcs->customMem);
+		zcs->outBuff = (char *)ZSTD_malloc(zcs->outBuffSize, zcs->customMem);
+		if (zcs->outBuff == NULL)
+			return ERROR(memory_allocation);
+	}
+
+	if (dict && dictSize >= 8) {
+		ZSTD_freeCDict(zcs->cdictLocal);
+		zcs->cdictLocal = ZSTD_createCDict_advanced(dict, dictSize, 0, params, zcs->customMem);
+		if (zcs->cdictLocal == NULL)
+			return ERROR(memory_allocation);
+		zcs->cdict = zcs->cdictLocal;
+	} else
+		zcs->cdict = NULL;
+
+	zcs->checksum = params.fParams.checksumFlag > 0;
+	zcs->params = params;
+
+	return ZSTD_resetCStream_internal(zcs, pledgedSrcSize);
+}
+
+ZSTD_CStream *ZSTD_initCStream(ZSTD_parameters params, unsigned long long pledgedSrcSize, void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem const stackMem = ZSTD_initStack(workspace, workspaceSize);
+	ZSTD_CStream *const zcs = ZSTD_createCStream_advanced(stackMem);
+	if (zcs) {
+		size_t const code = ZSTD_initCStream_advanced(zcs, NULL, 0, params, pledgedSrcSize);
+		if (ZSTD_isError(code)) {
+			return NULL;
+		}
+	}
+	return zcs;
+}
+
+ZSTD_CStream *ZSTD_initCStream_usingCDict(const ZSTD_CDict *cdict, unsigned long long pledgedSrcSize, void *workspace, size_t workspaceSize)
+{
+	ZSTD_parameters const params = ZSTD_getParamsFromCDict(cdict);
+	ZSTD_CStream *const zcs = ZSTD_initCStream(params, pledgedSrcSize, workspace, workspaceSize);
+	if (zcs) {
+		zcs->cdict = cdict;
+		if (ZSTD_isError(ZSTD_resetCStream_internal(zcs, pledgedSrcSize))) {
+			return NULL;
+		}
+	}
+	return zcs;
+}
+
+/*======   Compression   ======*/
+
+typedef enum { zsf_gather, zsf_flush, zsf_end } ZSTD_flush_e;
+
+ZSTD_STATIC size_t ZSTD_limitCopy(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	size_t const length = MIN(dstCapacity, srcSize);
+	memcpy(dst, src, length);
+	return length;
+}
+
+static size_t ZSTD_compressStream_generic(ZSTD_CStream *zcs, void *dst, size_t *dstCapacityPtr, const void *src, size_t *srcSizePtr, ZSTD_flush_e const flush)
+{
+	U32 someMoreWork = 1;
+	const char *const istart = (const char *)src;
+	const char *const iend = istart + *srcSizePtr;
+	const char *ip = istart;
+	char *const ostart = (char *)dst;
+	char *const oend = ostart + *dstCapacityPtr;
+	char *op = ostart;
+
+	while (someMoreWork) {
+		switch (zcs->stage) {
+		case zcss_init:
+			return ERROR(init_missing); /* call ZBUFF_compressInit() first ! */
+
+		case zcss_load:
+			/* complete inBuffer */
+			{
+				size_t const toLoad = zcs->inBuffTarget - zcs->inBuffPos;
+				size_t const loaded = ZSTD_limitCopy(zcs->inBuff + zcs->inBuffPos, toLoad, ip, iend - ip);
+				zcs->inBuffPos += loaded;
+				ip += loaded;
+				if ((zcs->inBuffPos == zcs->inToCompress) || (!flush && (toLoad != loaded))) {
+					someMoreWork = 0;
+					break; /* not enough input to get a full block : stop there, wait for more */
+				}
+			}
+			/* compress curr block (note : this stage cannot be stopped in the middle) */
+			{
+				void *cDst;
+				size_t cSize;
+				size_t const iSize = zcs->inBuffPos - zcs->inToCompress;
+				size_t oSize = oend - op;
+				if (oSize >= ZSTD_compressBound(iSize))
+					cDst = op; /* compress directly into output buffer (avoid flush stage) */
+				else
+					cDst = zcs->outBuff, oSize = zcs->outBuffSize;
+				cSize = (flush == zsf_end) ? ZSTD_compressEnd(zcs->cctx, cDst, oSize, zcs->inBuff + zcs->inToCompress, iSize)
+							   : ZSTD_compressContinue(zcs->cctx, cDst, oSize, zcs->inBuff + zcs->inToCompress, iSize);
+				if (ZSTD_isError(cSize))
+					return cSize;
+				if (flush == zsf_end)
+					zcs->frameEnded = 1;
+				/* prepare next block */
+				zcs->inBuffTarget = zcs->inBuffPos + zcs->blockSize;
+				if (zcs->inBuffTarget > zcs->inBuffSize)
+					zcs->inBuffPos = 0, zcs->inBuffTarget = zcs->blockSize; /* note : inBuffSize >= blockSize */
+				zcs->inToCompress = zcs->inBuffPos;
+				if (cDst == op) {
+					op += cSize;
+					break;
+				} /* no need to flush */
+				zcs->outBuffContentSize = cSize;
+				zcs->outBuffFlushedSize = 0;
+				zcs->stage = zcss_flush; /* pass-through to flush stage */
+			}
+
+		case zcss_flush: {
+			size_t const toFlush = zcs->outBuffContentSize - zcs->outBuffFlushedSize;
+			size_t const flushed = ZSTD_limitCopy(op, oend - op, zcs->outBuff + zcs->outBuffFlushedSize, toFlush);
+			op += flushed;
+			zcs->outBuffFlushedSize += flushed;
+			if (toFlush != flushed) {
+				someMoreWork = 0;
+				break;
+			} /* dst too small to store flushed data : stop there */
+			zcs->outBuffContentSize = zcs->outBuffFlushedSize = 0;
+			zcs->stage = zcss_load;
+			break;
+		}
+
+		case zcss_final:
+			someMoreWork = 0; /* do nothing */
+			break;
+
+		default:
+			return ERROR(GENERIC); /* impossible */
+		}
+	}
+
+	*srcSizePtr = ip - istart;
+	*dstCapacityPtr = op - ostart;
+	zcs->inputProcessed += *srcSizePtr;
+	if (zcs->frameEnded)
+		return 0;
+	{
+		size_t hintInSize = zcs->inBuffTarget - zcs->inBuffPos;
+		if (hintInSize == 0)
+			hintInSize = zcs->blockSize;
+		return hintInSize;
+	}
+}
+
+size_t ZSTD_compressStream(ZSTD_CStream *zcs, ZSTD_outBuffer *output, ZSTD_inBuffer *input)
+{
+	size_t sizeRead = input->size - input->pos;
+	size_t sizeWritten = output->size - output->pos;
+	size_t const result =
+	    ZSTD_compressStream_generic(zcs, (char *)(output->dst) + output->pos, &sizeWritten, (const char *)(input->src) + input->pos, &sizeRead, zsf_gather);
+	input->pos += sizeRead;
+	output->pos += sizeWritten;
+	return result;
+}
+
+/*======   Finalize   ======*/
+
+/*! ZSTD_flushStream() :
+*   @return : amount of data remaining to flush */
+size_t ZSTD_flushStream(ZSTD_CStream *zcs, ZSTD_outBuffer *output)
+{
+	size_t srcSize = 0;
+	size_t sizeWritten = output->size - output->pos;
+	size_t const result = ZSTD_compressStream_generic(zcs, (char *)(output->dst) + output->pos, &sizeWritten, &srcSize,
+							  &srcSize, /* use a valid src address instead of NULL */
+							  zsf_flush);
+	output->pos += sizeWritten;
+	if (ZSTD_isError(result))
+		return result;
+	return zcs->outBuffContentSize - zcs->outBuffFlushedSize; /* remaining to flush */
+}
+
+size_t ZSTD_endStream(ZSTD_CStream *zcs, ZSTD_outBuffer *output)
+{
+	BYTE *const ostart = (BYTE *)(output->dst) + output->pos;
+	BYTE *const oend = (BYTE *)(output->dst) + output->size;
+	BYTE *op = ostart;
+
+	if ((zcs->pledgedSrcSize) && (zcs->inputProcessed != zcs->pledgedSrcSize))
+		return ERROR(srcSize_wrong); /* pledgedSrcSize not respected */
+
+	if (zcs->stage != zcss_final) {
+		/* flush whatever remains */
+		size_t srcSize = 0;
+		size_t sizeWritten = output->size - output->pos;
+		size_t const notEnded =
+		    ZSTD_compressStream_generic(zcs, ostart, &sizeWritten, &srcSize, &srcSize, zsf_end); /* use a valid src address instead of NULL */
+		size_t const remainingToFlush = zcs->outBuffContentSize - zcs->outBuffFlushedSize;
+		op += sizeWritten;
+		if (remainingToFlush) {
+			output->pos += sizeWritten;
+			return remainingToFlush + ZSTD_BLOCKHEADERSIZE /* final empty block */ + (zcs->checksum * 4);
+		}
+		/* create epilogue */
+		zcs->stage = zcss_final;
+		zcs->outBuffContentSize = !notEnded ? 0 : ZSTD_compressEnd(zcs->cctx, zcs->outBuff, zcs->outBuffSize, NULL,
+									   0); /* write epilogue, including final empty block, into outBuff */
+	}
+
+	/* flush epilogue */
+	{
+		size_t const toFlush = zcs->outBuffContentSize - zcs->outBuffFlushedSize;
+		size_t const flushed = ZSTD_limitCopy(op, oend - op, zcs->outBuff + zcs->outBuffFlushedSize, toFlush);
+		op += flushed;
+		zcs->outBuffFlushedSize += flushed;
+		output->pos += op - ostart;
+		if (toFlush == flushed)
+			zcs->stage = zcss_init; /* end reached */
+		return toFlush - flushed;
+	}
+}
+
+/*-=====  Pre-defined compression levels  =====-*/
+
+#define ZSTD_DEFAULT_CLEVEL 1
+#define ZSTD_MAX_CLEVEL 22
+int ZSTD_maxCLevel(void) { return ZSTD_MAX_CLEVEL; }
+
+static const ZSTD_compressionParameters ZSTD_defaultCParameters[4][ZSTD_MAX_CLEVEL + 1] = {
+    {
+	/* "default" */
+	/* W,  C,  H,  S,  L, TL, strat */
+	{18, 12, 12, 1, 7, 16, ZSTD_fast},    /* level  0 - never used */
+	{19, 13, 14, 1, 7, 16, ZSTD_fast},    /* level  1 */
+	{19, 15, 16, 1, 6, 16, ZSTD_fast},    /* level  2 */
+	{20, 16, 17, 1, 5, 16, ZSTD_dfast},   /* level  3.*/
+	{20, 18, 18, 1, 5, 16, ZSTD_dfast},   /* level  4.*/
+	{20, 15, 18, 3, 5, 16, ZSTD_greedy},  /* level  5 */
+	{21, 16, 19, 2, 5, 16, ZSTD_lazy},    /* level  6 */
+	{21, 17, 20, 3, 5, 16, ZSTD_lazy},    /* level  7 */
+	{21, 18, 20, 3, 5, 16, ZSTD_lazy2},   /* level  8 */
+	{21, 20, 20, 3, 5, 16, ZSTD_lazy2},   /* level  9 */
+	{21, 19, 21, 4, 5, 16, ZSTD_lazy2},   /* level 10 */
+	{22, 20, 22, 4, 5, 16, ZSTD_lazy2},   /* level 11 */
+	{22, 20, 22, 5, 5, 16, ZSTD_lazy2},   /* level 12 */
+	{22, 21, 22, 5, 5, 16, ZSTD_lazy2},   /* level 13 */
+	{22, 21, 22, 6, 5, 16, ZSTD_lazy2},   /* level 14 */
+	{22, 21, 21, 5, 5, 16, ZSTD_btlazy2}, /* level 15 */
+	{23, 22, 22, 5, 5, 16, ZSTD_btlazy2}, /* level 16 */
+	{23, 21, 22, 4, 5, 24, ZSTD_btopt},   /* level 17 */
+	{23, 23, 22, 6, 5, 32, ZSTD_btopt},   /* level 18 */
+	{23, 23, 22, 6, 3, 48, ZSTD_btopt},   /* level 19 */
+	{25, 25, 23, 7, 3, 64, ZSTD_btopt2},  /* level 20 */
+	{26, 26, 23, 7, 3, 256, ZSTD_btopt2}, /* level 21 */
+	{27, 27, 25, 9, 3, 512, ZSTD_btopt2}, /* level 22 */
+    },
+    {
+	/* for srcSize <= 256 KB */
+	/* W,  C,  H,  S,  L,  T, strat */
+	{0, 0, 0, 0, 0, 0, ZSTD_fast},	 /* level  0 - not used */
+	{18, 13, 14, 1, 6, 8, ZSTD_fast},      /* level  1 */
+	{18, 14, 13, 1, 5, 8, ZSTD_dfast},     /* level  2 */
+	{18, 16, 15, 1, 5, 8, ZSTD_dfast},     /* level  3 */
+	{18, 15, 17, 1, 5, 8, ZSTD_greedy},    /* level  4.*/
+	{18, 16, 17, 4, 5, 8, ZSTD_greedy},    /* level  5.*/
+	{18, 16, 17, 3, 5, 8, ZSTD_lazy},      /* level  6.*/
+	{18, 17, 17, 4, 4, 8, ZSTD_lazy},      /* level  7 */
+	{18, 17, 17, 4, 4, 8, ZSTD_lazy2},     /* level  8 */
+	{18, 17, 17, 5, 4, 8, ZSTD_lazy2},     /* level  9 */
+	{18, 17, 17, 6, 4, 8, ZSTD_lazy2},     /* level 10 */
+	{18, 18, 17, 6, 4, 8, ZSTD_lazy2},     /* level 11.*/
+	{18, 18, 17, 7, 4, 8, ZSTD_lazy2},     /* level 12.*/
+	{18, 19, 17, 6, 4, 8, ZSTD_btlazy2},   /* level 13 */
+	{18, 18, 18, 4, 4, 16, ZSTD_btopt},    /* level 14.*/
+	{18, 18, 18, 4, 3, 16, ZSTD_btopt},    /* level 15.*/
+	{18, 19, 18, 6, 3, 32, ZSTD_btopt},    /* level 16.*/
+	{18, 19, 18, 8, 3, 64, ZSTD_btopt},    /* level 17.*/
+	{18, 19, 18, 9, 3, 128, ZSTD_btopt},   /* level 18.*/
+	{18, 19, 18, 10, 3, 256, ZSTD_btopt},  /* level 19.*/
+	{18, 19, 18, 11, 3, 512, ZSTD_btopt2}, /* level 20.*/
+	{18, 19, 18, 12, 3, 512, ZSTD_btopt2}, /* level 21.*/
+	{18, 19, 18, 13, 3, 512, ZSTD_btopt2}, /* level 22.*/
+    },
+    {
+	/* for srcSize <= 128 KB */
+	/* W,  C,  H,  S,  L,  T, strat */
+	{17, 12, 12, 1, 7, 8, ZSTD_fast},      /* level  0 - not used */
+	{17, 12, 13, 1, 6, 8, ZSTD_fast},      /* level  1 */
+	{17, 13, 16, 1, 5, 8, ZSTD_fast},      /* level  2 */
+	{17, 16, 16, 2, 5, 8, ZSTD_dfast},     /* level  3 */
+	{17, 13, 15, 3, 4, 8, ZSTD_greedy},    /* level  4 */
+	{17, 15, 17, 4, 4, 8, ZSTD_greedy},    /* level  5 */
+	{17, 16, 17, 3, 4, 8, ZSTD_lazy},      /* level  6 */
+	{17, 15, 17, 4, 4, 8, ZSTD_lazy2},     /* level  7 */
+	{17, 17, 17, 4, 4, 8, ZSTD_lazy2},     /* level  8 */
+	{17, 17, 17, 5, 4, 8, ZSTD_lazy2},     /* level  9 */
+	{17, 17, 17, 6, 4, 8, ZSTD_lazy2},     /* level 10 */
+	{17, 17, 17, 7, 4, 8, ZSTD_lazy2},     /* level 11 */
+	{17, 17, 17, 8, 4, 8, ZSTD_lazy2},     /* level 12 */
+	{17, 18, 17, 6, 4, 8, ZSTD_btlazy2},   /* level 13.*/
+	{17, 17, 17, 7, 3, 8, ZSTD_btopt},     /* level 14.*/
+	{17, 17, 17, 7, 3, 16, ZSTD_btopt},    /* level 15.*/
+	{17, 18, 17, 7, 3, 32, ZSTD_btopt},    /* level 16.*/
+	{17, 18, 17, 7, 3, 64, ZSTD_btopt},    /* level 17.*/
+	{17, 18, 17, 7, 3, 256, ZSTD_btopt},   /* level 18.*/
+	{17, 18, 17, 8, 3, 256, ZSTD_btopt},   /* level 19.*/
+	{17, 18, 17, 9, 3, 256, ZSTD_btopt2},  /* level 20.*/
+	{17, 18, 17, 10, 3, 256, ZSTD_btopt2}, /* level 21.*/
+	{17, 18, 17, 11, 3, 512, ZSTD_btopt2}, /* level 22.*/
+    },
+    {
+	/* for srcSize <= 16 KB */
+	/* W,  C,  H,  S,  L,  T, strat */
+	{14, 12, 12, 1, 7, 6, ZSTD_fast},      /* level  0 - not used */
+	{14, 14, 14, 1, 6, 6, ZSTD_fast},      /* level  1 */
+	{14, 14, 14, 1, 4, 6, ZSTD_fast},      /* level  2 */
+	{14, 14, 14, 1, 4, 6, ZSTD_dfast},     /* level  3.*/
+	{14, 14, 14, 4, 4, 6, ZSTD_greedy},    /* level  4.*/
+	{14, 14, 14, 3, 4, 6, ZSTD_lazy},      /* level  5.*/
+	{14, 14, 14, 4, 4, 6, ZSTD_lazy2},     /* level  6 */
+	{14, 14, 14, 5, 4, 6, ZSTD_lazy2},     /* level  7 */
+	{14, 14, 14, 6, 4, 6, ZSTD_lazy2},     /* level  8.*/
+	{14, 15, 14, 6, 4, 6, ZSTD_btlazy2},   /* level  9.*/
+	{14, 15, 14, 3, 3, 6, ZSTD_btopt},     /* level 10.*/
+	{14, 15, 14, 6, 3, 8, ZSTD_btopt},     /* level 11.*/
+	{14, 15, 14, 6, 3, 16, ZSTD_btopt},    /* level 12.*/
+	{14, 15, 14, 6, 3, 24, ZSTD_btopt},    /* level 13.*/
+	{14, 15, 15, 6, 3, 48, ZSTD_btopt},    /* level 14.*/
+	{14, 15, 15, 6, 3, 64, ZSTD_btopt},    /* level 15.*/
+	{14, 15, 15, 6, 3, 96, ZSTD_btopt},    /* level 16.*/
+	{14, 15, 15, 6, 3, 128, ZSTD_btopt},   /* level 17.*/
+	{14, 15, 15, 6, 3, 256, ZSTD_btopt},   /* level 18.*/
+	{14, 15, 15, 7, 3, 256, ZSTD_btopt},   /* level 19.*/
+	{14, 15, 15, 8, 3, 256, ZSTD_btopt2},  /* level 20.*/
+	{14, 15, 15, 9, 3, 256, ZSTD_btopt2},  /* level 21.*/
+	{14, 15, 15, 10, 3, 256, ZSTD_btopt2}, /* level 22.*/
+    },
+};
+
+/*! ZSTD_getCParams() :
+*   @return ZSTD_compressionParameters structure for a selected compression level, `srcSize` and `dictSize`.
+*   Size values are optional, provide 0 if not known or unused */
+ZSTD_compressionParameters ZSTD_getCParams(int compressionLevel, unsigned long long srcSize, size_t dictSize)
+{
+	ZSTD_compressionParameters cp;
+	size_t const addedSize = srcSize ? 0 : 500;
+	U64 const rSize = srcSize + dictSize ? srcSize + dictSize + addedSize : (U64)-1;
+	U32 const tableID = (rSize <= 256 KB) + (rSize <= 128 KB) + (rSize <= 16 KB); /* intentional underflow for srcSizeHint == 0 */
+	if (compressionLevel <= 0)
+		compressionLevel = ZSTD_DEFAULT_CLEVEL; /* 0 == default; no negative compressionLevel yet */
+	if (compressionLevel > ZSTD_MAX_CLEVEL)
+		compressionLevel = ZSTD_MAX_CLEVEL;
+	cp = ZSTD_defaultCParameters[tableID][compressionLevel];
+	if (ZSTD_32bits()) { /* auto-correction, for 32-bits mode */
+		if (cp.windowLog > ZSTD_WINDOWLOG_MAX)
+			cp.windowLog = ZSTD_WINDOWLOG_MAX;
+		if (cp.chainLog > ZSTD_CHAINLOG_MAX)
+			cp.chainLog = ZSTD_CHAINLOG_MAX;
+		if (cp.hashLog > ZSTD_HASHLOG_MAX)
+			cp.hashLog = ZSTD_HASHLOG_MAX;
+	}
+	cp = ZSTD_adjustCParams(cp, srcSize, dictSize);
+	return cp;
+}
+
+/*! ZSTD_getParams() :
+*   same as ZSTD_getCParams(), but @return a `ZSTD_parameters` object (instead of `ZSTD_compressionParameters`).
+*   All fields of `ZSTD_frameParameters` are set to default (0) */
+ZSTD_parameters ZSTD_getParams(int compressionLevel, unsigned long long srcSize, size_t dictSize)
+{
+	ZSTD_parameters params;
+	ZSTD_compressionParameters const cParams = ZSTD_getCParams(compressionLevel, srcSize, dictSize);
+	memset(&params, 0, sizeof(params));
+	params.cParams = cParams;
+	return params;
+}
+
+EXPORT_SYMBOL(ZSTD_maxCLevel);
+EXPORT_SYMBOL(ZSTD_compressBound);
+
+EXPORT_SYMBOL(ZSTD_CCtxWorkspaceBound);
+EXPORT_SYMBOL(ZSTD_initCCtx);
+EXPORT_SYMBOL(ZSTD_compressCCtx);
+EXPORT_SYMBOL(ZSTD_compress_usingDict);
+
+EXPORT_SYMBOL(ZSTD_CDictWorkspaceBound);
+EXPORT_SYMBOL(ZSTD_initCDict);
+EXPORT_SYMBOL(ZSTD_compress_usingCDict);
+
+EXPORT_SYMBOL(ZSTD_CStreamWorkspaceBound);
+EXPORT_SYMBOL(ZSTD_initCStream);
+EXPORT_SYMBOL(ZSTD_initCStream_usingCDict);
+EXPORT_SYMBOL(ZSTD_resetCStream);
+EXPORT_SYMBOL(ZSTD_compressStream);
+EXPORT_SYMBOL(ZSTD_flushStream);
+EXPORT_SYMBOL(ZSTD_endStream);
+EXPORT_SYMBOL(ZSTD_CStreamInSize);
+EXPORT_SYMBOL(ZSTD_CStreamOutSize);
+
+EXPORT_SYMBOL(ZSTD_getCParams);
+EXPORT_SYMBOL(ZSTD_getParams);
+EXPORT_SYMBOL(ZSTD_checkCParams);
+EXPORT_SYMBOL(ZSTD_adjustCParams);
+
+EXPORT_SYMBOL(ZSTD_compressBegin);
+EXPORT_SYMBOL(ZSTD_compressBegin_usingDict);
+EXPORT_SYMBOL(ZSTD_compressBegin_advanced);
+EXPORT_SYMBOL(ZSTD_copyCCtx);
+EXPORT_SYMBOL(ZSTD_compressBegin_usingCDict);
+EXPORT_SYMBOL(ZSTD_compressContinue);
+EXPORT_SYMBOL(ZSTD_compressEnd);
+
+EXPORT_SYMBOL(ZSTD_getBlockSizeMax);
+EXPORT_SYMBOL(ZSTD_compressBlock);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("Zstd Compressor");
diff --git a/lib/zstd/decompress.c b/lib/zstd/decompress.c
new file mode 100644
index 000000000000..b17846725ca0
--- /dev/null
+++ b/lib/zstd/decompress.c
@@ -0,0 +1,2528 @@
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+/* ***************************************************************
+*  Tuning parameters
+*****************************************************************/
+/*!
+*  MAXWINDOWSIZE_DEFAULT :
+*  maximum window size accepted by DStream, by default.
+*  Frames requiring more memory will be rejected.
+*/
+#ifndef ZSTD_MAXWINDOWSIZE_DEFAULT
+#define ZSTD_MAXWINDOWSIZE_DEFAULT ((1 << ZSTD_WINDOWLOG_MAX) + 1) /* defined within zstd.h */
+#endif
+
+/*-*******************************************************
+*  Dependencies
+*********************************************************/
+#include "fse.h"
+#include "huf.h"
+#include "mem.h" /* low level memory routines */
+#include "zstd_internal.h"
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/string.h> /* memcpy, memmove, memset */
+
+#define ZSTD_PREFETCH(ptr) __builtin_prefetch(ptr, 0, 0)
+
+/*-*************************************
+*  Macros
+***************************************/
+#define ZSTD_isError ERR_isError /* for inlining */
+#define FSE_isError ERR_isError
+#define HUF_isError ERR_isError
+
+/*_*******************************************************
+*  Memory operations
+**********************************************************/
+static void ZSTD_copy4(void *dst, const void *src) { memcpy(dst, src, 4); }
+
+/*-*************************************************************
+*   Context management
+***************************************************************/
+typedef enum {
+	ZSTDds_getFrameHeaderSize,
+	ZSTDds_decodeFrameHeader,
+	ZSTDds_decodeBlockHeader,
+	ZSTDds_decompressBlock,
+	ZSTDds_decompressLastBlock,
+	ZSTDds_checkChecksum,
+	ZSTDds_decodeSkippableHeader,
+	ZSTDds_skipFrame
+} ZSTD_dStage;
+
+typedef struct {
+	FSE_DTable LLTable[FSE_DTABLE_SIZE_U32(LLFSELog)];
+	FSE_DTable OFTable[FSE_DTABLE_SIZE_U32(OffFSELog)];
+	FSE_DTable MLTable[FSE_DTABLE_SIZE_U32(MLFSELog)];
+	HUF_DTable hufTable[HUF_DTABLE_SIZE(HufLog)]; /* can accommodate HUF_decompress4X */
+	U64 workspace[HUF_DECOMPRESS_WORKSPACE_SIZE_U32 / 2];
+	U32 rep[ZSTD_REP_NUM];
+} ZSTD_entropyTables_t;
+
+struct ZSTD_DCtx_s {
+	const FSE_DTable *LLTptr;
+	const FSE_DTable *MLTptr;
+	const FSE_DTable *OFTptr;
+	const HUF_DTable *HUFptr;
+	ZSTD_entropyTables_t entropy;
+	const void *previousDstEnd; /* detect continuity */
+	const void *base;	   /* start of curr segment */
+	const void *vBase;	  /* virtual start of previous segment if it was just before curr one */
+	const void *dictEnd;	/* end of previous segment */
+	size_t expected;
+	ZSTD_frameParams fParams;
+	blockType_e bType; /* used in ZSTD_decompressContinue(), to transfer blockType between header decoding and block decoding stages */
+	ZSTD_dStage stage;
+	U32 litEntropy;
+	U32 fseEntropy;
+	struct xxh64_state xxhState;
+	size_t headerSize;
+	U32 dictID;
+	const BYTE *litPtr;
+	ZSTD_customMem customMem;
+	size_t litSize;
+	size_t rleSize;
+	BYTE litBuffer[ZSTD_BLOCKSIZE_ABSOLUTEMAX + WILDCOPY_OVERLENGTH];
+	BYTE headerBuffer[ZSTD_FRAMEHEADERSIZE_MAX];
+}; /* typedef'd to ZSTD_DCtx within "zstd.h" */
+
+size_t ZSTD_DCtxWorkspaceBound(void) { return ZSTD_ALIGN(sizeof(ZSTD_stack)) + ZSTD_ALIGN(sizeof(ZSTD_DCtx)); }
+
+size_t ZSTD_decompressBegin(ZSTD_DCtx *dctx)
+{
+	dctx->expected = ZSTD_frameHeaderSize_prefix;
+	dctx->stage = ZSTDds_getFrameHeaderSize;
+	dctx->previousDstEnd = NULL;
+	dctx->base = NULL;
+	dctx->vBase = NULL;
+	dctx->dictEnd = NULL;
+	dctx->entropy.hufTable[0] = (HUF_DTable)((HufLog)*0x1000001); /* cover both little and big endian */
+	dctx->litEntropy = dctx->fseEntropy = 0;
+	dctx->dictID = 0;
+	ZSTD_STATIC_ASSERT(sizeof(dctx->entropy.rep) == sizeof(repStartValue));
+	memcpy(dctx->entropy.rep, repStartValue, sizeof(repStartValue)); /* initial repcodes */
+	dctx->LLTptr = dctx->entropy.LLTable;
+	dctx->MLTptr = dctx->entropy.MLTable;
+	dctx->OFTptr = dctx->entropy.OFTable;
+	dctx->HUFptr = dctx->entropy.hufTable;
+	return 0;
+}
+
+ZSTD_DCtx *ZSTD_createDCtx_advanced(ZSTD_customMem customMem)
+{
+	ZSTD_DCtx *dctx;
+
+	if (!customMem.customAlloc || !customMem.customFree)
+		return NULL;
+
+	dctx = (ZSTD_DCtx *)ZSTD_malloc(sizeof(ZSTD_DCtx), customMem);
+	if (!dctx)
+		return NULL;
+	memcpy(&dctx->customMem, &customMem, sizeof(customMem));
+	ZSTD_decompressBegin(dctx);
+	return dctx;
+}
+
+ZSTD_DCtx *ZSTD_initDCtx(void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem const stackMem = ZSTD_initStack(workspace, workspaceSize);
+	return ZSTD_createDCtx_advanced(stackMem);
+}
+
+size_t ZSTD_freeDCtx(ZSTD_DCtx *dctx)
+{
+	if (dctx == NULL)
+		return 0; /* support free on NULL */
+	ZSTD_free(dctx, dctx->customMem);
+	return 0; /* reserved as a potential error code in the future */
+}
+
+void ZSTD_copyDCtx(ZSTD_DCtx *dstDCtx, const ZSTD_DCtx *srcDCtx)
+{
+	size_t const workSpaceSize = (ZSTD_BLOCKSIZE_ABSOLUTEMAX + WILDCOPY_OVERLENGTH) + ZSTD_frameHeaderSize_max;
+	memcpy(dstDCtx, srcDCtx, sizeof(ZSTD_DCtx) - workSpaceSize); /* no need to copy workspace */
+}
+
+static void ZSTD_refDDict(ZSTD_DCtx *dstDCtx, const ZSTD_DDict *ddict);
+
+/*-*************************************************************
+*   Decompression section
+***************************************************************/
+
+/*! ZSTD_isFrame() :
+ *  Tells if the content of `buffer` starts with a valid Frame Identifier.
+ *  Note : Frame Identifier is 4 bytes. If `size < 4`, @return will always be 0.
+ *  Note 2 : Legacy Frame Identifiers are considered valid only if Legacy Support is enabled.
+ *  Note 3 : Skippable Frame Identifiers are considered valid. */
+unsigned ZSTD_isFrame(const void *buffer, size_t size)
+{
+	if (size < 4)
+		return 0;
+	{
+		U32 const magic = ZSTD_readLE32(buffer);
+		if (magic == ZSTD_MAGICNUMBER)
+			return 1;
+		if ((magic & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START)
+			return 1;
+	}
+	return 0;
+}
+
+/** ZSTD_frameHeaderSize() :
+*   srcSize must be >= ZSTD_frameHeaderSize_prefix.
+*   @return : size of the Frame Header */
+static size_t ZSTD_frameHeaderSize(const void *src, size_t srcSize)
+{
+	if (srcSize < ZSTD_frameHeaderSize_prefix)
+		return ERROR(srcSize_wrong);
+	{
+		BYTE const fhd = ((const BYTE *)src)[4];
+		U32 const dictID = fhd & 3;
+		U32 const singleSegment = (fhd >> 5) & 1;
+		U32 const fcsId = fhd >> 6;
+		return ZSTD_frameHeaderSize_prefix + !singleSegment + ZSTD_did_fieldSize[dictID] + ZSTD_fcs_fieldSize[fcsId] + (singleSegment && !fcsId);
+	}
+}
+
+/** ZSTD_getFrameParams() :
+*   decode Frame Header, or require larger `srcSize`.
+*   @return : 0, `fparamsPtr` is correctly filled,
+*            >0, `srcSize` is too small, result is expected `srcSize`,
+*             or an error code, which can be tested using ZSTD_isError() */
+size_t ZSTD_getFrameParams(ZSTD_frameParams *fparamsPtr, const void *src, size_t srcSize)
+{
+	const BYTE *ip = (const BYTE *)src;
+
+	if (srcSize < ZSTD_frameHeaderSize_prefix)
+		return ZSTD_frameHeaderSize_prefix;
+	if (ZSTD_readLE32(src) != ZSTD_MAGICNUMBER) {
+		if ((ZSTD_readLE32(src) & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) {
+			if (srcSize < ZSTD_skippableHeaderSize)
+				return ZSTD_skippableHeaderSize; /* magic number + skippable frame length */
+			memset(fparamsPtr, 0, sizeof(*fparamsPtr));
+			fparamsPtr->frameContentSize = ZSTD_readLE32((const char *)src + 4);
+			fparamsPtr->windowSize = 0; /* windowSize==0 means a frame is skippable */
+			return 0;
+		}
+		return ERROR(prefix_unknown);
+	}
+
+	/* ensure there is enough `srcSize` to fully read/decode frame header */
+	{
+		size_t const fhsize = ZSTD_frameHeaderSize(src, srcSize);
+		if (srcSize < fhsize)
+			return fhsize;
+	}
+
+	{
+		BYTE const fhdByte = ip[4];
+		size_t pos = 5;
+		U32 const dictIDSizeCode = fhdByte & 3;
+		U32 const checksumFlag = (fhdByte >> 2) & 1;
+		U32 const singleSegment = (fhdByte >> 5) & 1;
+		U32 const fcsID = fhdByte >> 6;
+		U32 const windowSizeMax = 1U << ZSTD_WINDOWLOG_MAX;
+		U32 windowSize = 0;
+		U32 dictID = 0;
+		U64 frameContentSize = 0;
+		if ((fhdByte & 0x08) != 0)
+			return ERROR(frameParameter_unsupported); /* reserved bits, which must be zero */
+		if (!singleSegment) {
+			BYTE const wlByte = ip[pos++];
+			U32 const windowLog = (wlByte >> 3) + ZSTD_WINDOWLOG_ABSOLUTEMIN;
+			if (windowLog > ZSTD_WINDOWLOG_MAX)
+				return ERROR(frameParameter_windowTooLarge); /* avoids issue with 1 << windowLog */
+			windowSize = (1U << windowLog);
+			windowSize += (windowSize >> 3) * (wlByte & 7);
+		}
+
+		switch (dictIDSizeCode) {
+		default: /* impossible */
+		case 0: break;
+		case 1:
+			dictID = ip[pos];
+			pos++;
+			break;
+		case 2:
+			dictID = ZSTD_readLE16(ip + pos);
+			pos += 2;
+			break;
+		case 3:
+			dictID = ZSTD_readLE32(ip + pos);
+			pos += 4;
+			break;
+		}
+		switch (fcsID) {
+		default: /* impossible */
+		case 0:
+			if (singleSegment)
+				frameContentSize = ip[pos];
+			break;
+		case 1: frameContentSize = ZSTD_readLE16(ip + pos) + 256; break;
+		case 2: frameContentSize = ZSTD_readLE32(ip + pos); break;
+		case 3: frameContentSize = ZSTD_readLE64(ip + pos); break;
+		}
+		if (!windowSize)
+			windowSize = (U32)frameContentSize;
+		if (windowSize > windowSizeMax)
+			return ERROR(frameParameter_windowTooLarge);
+		fparamsPtr->frameContentSize = frameContentSize;
+		fparamsPtr->windowSize = windowSize;
+		fparamsPtr->dictID = dictID;
+		fparamsPtr->checksumFlag = checksumFlag;
+	}
+	return 0;
+}
+
+/** ZSTD_getFrameContentSize() :
+*   compatible with legacy mode
+*   @return : decompressed size of the single frame pointed to be `src` if known, otherwise
+*             - ZSTD_CONTENTSIZE_UNKNOWN if the size cannot be determined
+*             - ZSTD_CONTENTSIZE_ERROR if an error occurred (e.g. invalid magic number, srcSize too small) */
+unsigned long long ZSTD_getFrameContentSize(const void *src, size_t srcSize)
+{
+	{
+		ZSTD_frameParams fParams;
+		if (ZSTD_getFrameParams(&fParams, src, srcSize) != 0)
+			return ZSTD_CONTENTSIZE_ERROR;
+		if (fParams.windowSize == 0) {
+			/* Either skippable or empty frame, size == 0 either way */
+			return 0;
+		} else if (fParams.frameContentSize != 0) {
+			return fParams.frameContentSize;
+		} else {
+			return ZSTD_CONTENTSIZE_UNKNOWN;
+		}
+	}
+}
+
+/** ZSTD_findDecompressedSize() :
+ *  compatible with legacy mode
+ *  `srcSize` must be the exact length of some number of ZSTD compressed and/or
+ *      skippable frames
+ *  @return : decompressed size of the frames contained */
+unsigned long long ZSTD_findDecompressedSize(const void *src, size_t srcSize)
+{
+	{
+		unsigned long long totalDstSize = 0;
+		while (srcSize >= ZSTD_frameHeaderSize_prefix) {
+			const U32 magicNumber = ZSTD_readLE32(src);
+
+			if ((magicNumber & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) {
+				size_t skippableSize;
+				if (srcSize < ZSTD_skippableHeaderSize)
+					return ERROR(srcSize_wrong);
+				skippableSize = ZSTD_readLE32((const BYTE *)src + 4) + ZSTD_skippableHeaderSize;
+				if (srcSize < skippableSize) {
+					return ZSTD_CONTENTSIZE_ERROR;
+				}
+
+				src = (const BYTE *)src + skippableSize;
+				srcSize -= skippableSize;
+				continue;
+			}
+
+			{
+				unsigned long long const ret = ZSTD_getFrameContentSize(src, srcSize);
+				if (ret >= ZSTD_CONTENTSIZE_ERROR)
+					return ret;
+
+				/* check for overflow */
+				if (totalDstSize + ret < totalDstSize)
+					return ZSTD_CONTENTSIZE_ERROR;
+				totalDstSize += ret;
+			}
+			{
+				size_t const frameSrcSize = ZSTD_findFrameCompressedSize(src, srcSize);
+				if (ZSTD_isError(frameSrcSize)) {
+					return ZSTD_CONTENTSIZE_ERROR;
+				}
+
+				src = (const BYTE *)src + frameSrcSize;
+				srcSize -= frameSrcSize;
+			}
+		}
+
+		if (srcSize) {
+			return ZSTD_CONTENTSIZE_ERROR;
+		}
+
+		return totalDstSize;
+	}
+}
+
+/** ZSTD_decodeFrameHeader() :
+*   `headerSize` must be the size provided by ZSTD_frameHeaderSize().
+*   @return : 0 if success, or an error code, which can be tested using ZSTD_isError() */
+static size_t ZSTD_decodeFrameHeader(ZSTD_DCtx *dctx, const void *src, size_t headerSize)
+{
+	size_t const result = ZSTD_getFrameParams(&(dctx->fParams), src, headerSize);
+	if (ZSTD_isError(result))
+		return result; /* invalid header */
+	if (result > 0)
+		return ERROR(srcSize_wrong); /* headerSize too small */
+	if (dctx->fParams.dictID && (dctx->dictID != dctx->fParams.dictID))
+		return ERROR(dictionary_wrong);
+	if (dctx->fParams.checksumFlag)
+		xxh64_reset(&dctx->xxhState, 0);
+	return 0;
+}
+
+typedef struct {
+	blockType_e blockType;
+	U32 lastBlock;
+	U32 origSize;
+} blockProperties_t;
+
+/*! ZSTD_getcBlockSize() :
+*   Provides the size of compressed block from block header `src` */
+size_t ZSTD_getcBlockSize(const void *src, size_t srcSize, blockProperties_t *bpPtr)
+{
+	if (srcSize < ZSTD_blockHeaderSize)
+		return ERROR(srcSize_wrong);
+	{
+		U32 const cBlockHeader = ZSTD_readLE24(src);
+		U32 const cSize = cBlockHeader >> 3;
+		bpPtr->lastBlock = cBlockHeader & 1;
+		bpPtr->blockType = (blockType_e)((cBlockHeader >> 1) & 3);
+		bpPtr->origSize = cSize; /* only useful for RLE */
+		if (bpPtr->blockType == bt_rle)
+			return 1;
+		if (bpPtr->blockType == bt_reserved)
+			return ERROR(corruption_detected);
+		return cSize;
+	}
+}
+
+static size_t ZSTD_copyRawBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	if (srcSize > dstCapacity)
+		return ERROR(dstSize_tooSmall);
+	memcpy(dst, src, srcSize);
+	return srcSize;
+}
+
+static size_t ZSTD_setRleBlock(void *dst, size_t dstCapacity, const void *src, size_t srcSize, size_t regenSize)
+{
+	if (srcSize != 1)
+		return ERROR(srcSize_wrong);
+	if (regenSize > dstCapacity)
+		return ERROR(dstSize_tooSmall);
+	memset(dst, *(const BYTE *)src, regenSize);
+	return regenSize;
+}
+
+/*! ZSTD_decodeLiteralsBlock() :
+	@return : nb of bytes read from src (< srcSize ) */
+size_t ZSTD_decodeLiteralsBlock(ZSTD_DCtx *dctx, const void *src, size_t srcSize) /* note : srcSize < BLOCKSIZE */
+{
+	if (srcSize < MIN_CBLOCK_SIZE)
+		return ERROR(corruption_detected);
+
+	{
+		const BYTE *const istart = (const BYTE *)src;
+		symbolEncodingType_e const litEncType = (symbolEncodingType_e)(istart[0] & 3);
+
+		switch (litEncType) {
+		case set_repeat:
+			if (dctx->litEntropy == 0)
+				return ERROR(dictionary_corrupted);
+		/* fall-through */
+		case set_compressed:
+			if (srcSize < 5)
+				return ERROR(corruption_detected); /* srcSize >= MIN_CBLOCK_SIZE == 3; here we need up to 5 for case 3 */
+			{
+				size_t lhSize, litSize, litCSize;
+				U32 singleStream = 0;
+				U32 const lhlCode = (istart[0] >> 2) & 3;
+				U32 const lhc = ZSTD_readLE32(istart);
+				switch (lhlCode) {
+				case 0:
+				case 1:
+				default: /* note : default is impossible, since lhlCode into [0..3] */
+					/* 2 - 2 - 10 - 10 */
+					singleStream = !lhlCode;
+					lhSize = 3;
+					litSize = (lhc >> 4) & 0x3FF;
+					litCSize = (lhc >> 14) & 0x3FF;
+					break;
+				case 2:
+					/* 2 - 2 - 14 - 14 */
+					lhSize = 4;
+					litSize = (lhc >> 4) & 0x3FFF;
+					litCSize = lhc >> 18;
+					break;
+				case 3:
+					/* 2 - 2 - 18 - 18 */
+					lhSize = 5;
+					litSize = (lhc >> 4) & 0x3FFFF;
+					litCSize = (lhc >> 22) + (istart[4] << 10);
+					break;
+				}
+				if (litSize > ZSTD_BLOCKSIZE_ABSOLUTEMAX)
+					return ERROR(corruption_detected);
+				if (litCSize + lhSize > srcSize)
+					return ERROR(corruption_detected);
+
+				if (HUF_isError(
+					(litEncType == set_repeat)
+					    ? (singleStream ? HUF_decompress1X_usingDTable(dctx->litBuffer, litSize, istart + lhSize, litCSize, dctx->HUFptr)
+							    : HUF_decompress4X_usingDTable(dctx->litBuffer, litSize, istart + lhSize, litCSize, dctx->HUFptr))
+					    : (singleStream
+						   ? HUF_decompress1X2_DCtx_wksp(dctx->entropy.hufTable, dctx->litBuffer, litSize, istart + lhSize, litCSize,
+										 dctx->entropy.workspace, sizeof(dctx->entropy.workspace))
+						   : HUF_decompress4X_hufOnly_wksp(dctx->entropy.hufTable, dctx->litBuffer, litSize, istart + lhSize, litCSize,
+										   dctx->entropy.workspace, sizeof(dctx->entropy.workspace)))))
+					return ERROR(corruption_detected);
+
+				dctx->litPtr = dctx->litBuffer;
+				dctx->litSize = litSize;
+				dctx->litEntropy = 1;
+				if (litEncType == set_compressed)
+					dctx->HUFptr = dctx->entropy.hufTable;
+				memset(dctx->litBuffer + dctx->litSize, 0, WILDCOPY_OVERLENGTH);
+				return litCSize + lhSize;
+			}
+
+		case set_basic: {
+			size_t litSize, lhSize;
+			U32 const lhlCode = ((istart[0]) >> 2) & 3;
+			switch (lhlCode) {
+			case 0:
+			case 2:
+			default: /* note : default is impossible, since lhlCode into [0..3] */
+				lhSize = 1;
+				litSize = istart[0] >> 3;
+				break;
+			case 1:
+				lhSize = 2;
+				litSize = ZSTD_readLE16(istart) >> 4;
+				break;
+			case 3:
+				lhSize = 3;
+				litSize = ZSTD_readLE24(istart) >> 4;
+				break;
+			}
+
+			if (lhSize + litSize + WILDCOPY_OVERLENGTH > srcSize) { /* risk reading beyond src buffer with wildcopy */
+				if (litSize + lhSize > srcSize)
+					return ERROR(corruption_detected);
+				memcpy(dctx->litBuffer, istart + lhSize, litSize);
+				dctx->litPtr = dctx->litBuffer;
+				dctx->litSize = litSize;
+				memset(dctx->litBuffer + dctx->litSize, 0, WILDCOPY_OVERLENGTH);
+				return lhSize + litSize;
+			}
+			/* direct reference into compressed stream */
+			dctx->litPtr = istart + lhSize;
+			dctx->litSize = litSize;
+			return lhSize + litSize;
+		}
+
+		case set_rle: {
+			U32 const lhlCode = ((istart[0]) >> 2) & 3;
+			size_t litSize, lhSize;
+			switch (lhlCode) {
+			case 0:
+			case 2:
+			default: /* note : default is impossible, since lhlCode into [0..3] */
+				lhSize = 1;
+				litSize = istart[0] >> 3;
+				break;
+			case 1:
+				lhSize = 2;
+				litSize = ZSTD_readLE16(istart) >> 4;
+				break;
+			case 3:
+				lhSize = 3;
+				litSize = ZSTD_readLE24(istart) >> 4;
+				if (srcSize < 4)
+					return ERROR(corruption_detected); /* srcSize >= MIN_CBLOCK_SIZE == 3; here we need lhSize+1 = 4 */
+				break;
+			}
+			if (litSize > ZSTD_BLOCKSIZE_ABSOLUTEMAX)
+				return ERROR(corruption_detected);
+			memset(dctx->litBuffer, istart[lhSize], litSize + WILDCOPY_OVERLENGTH);
+			dctx->litPtr = dctx->litBuffer;
+			dctx->litSize = litSize;
+			return lhSize + 1;
+		}
+		default:
+			return ERROR(corruption_detected); /* impossible */
+		}
+	}
+}
+
+typedef union {
+	FSE_decode_t realData;
+	U32 alignedBy4;
+} FSE_decode_t4;
+
+static const FSE_decode_t4 LL_defaultDTable[(1 << LL_DEFAULTNORMLOG) + 1] = {
+    {{LL_DEFAULTNORMLOG, 1, 1}}, /* header : tableLog, fastMode, fastMode */
+    {{0, 0, 4}},		 /* 0 : base, symbol, bits */
+    {{16, 0, 4}},
+    {{32, 1, 5}},
+    {{0, 3, 5}},
+    {{0, 4, 5}},
+    {{0, 6, 5}},
+    {{0, 7, 5}},
+    {{0, 9, 5}},
+    {{0, 10, 5}},
+    {{0, 12, 5}},
+    {{0, 14, 6}},
+    {{0, 16, 5}},
+    {{0, 18, 5}},
+    {{0, 19, 5}},
+    {{0, 21, 5}},
+    {{0, 22, 5}},
+    {{0, 24, 5}},
+    {{32, 25, 5}},
+    {{0, 26, 5}},
+    {{0, 27, 6}},
+    {{0, 29, 6}},
+    {{0, 31, 6}},
+    {{32, 0, 4}},
+    {{0, 1, 4}},
+    {{0, 2, 5}},
+    {{32, 4, 5}},
+    {{0, 5, 5}},
+    {{32, 7, 5}},
+    {{0, 8, 5}},
+    {{32, 10, 5}},
+    {{0, 11, 5}},
+    {{0, 13, 6}},
+    {{32, 16, 5}},
+    {{0, 17, 5}},
+    {{32, 19, 5}},
+    {{0, 20, 5}},
+    {{32, 22, 5}},
+    {{0, 23, 5}},
+    {{0, 25, 4}},
+    {{16, 25, 4}},
+    {{32, 26, 5}},
+    {{0, 28, 6}},
+    {{0, 30, 6}},
+    {{48, 0, 4}},
+    {{16, 1, 4}},
+    {{32, 2, 5}},
+    {{32, 3, 5}},
+    {{32, 5, 5}},
+    {{32, 6, 5}},
+    {{32, 8, 5}},
+    {{32, 9, 5}},
+    {{32, 11, 5}},
+    {{32, 12, 5}},
+    {{0, 15, 6}},
+    {{32, 17, 5}},
+    {{32, 18, 5}},
+    {{32, 20, 5}},
+    {{32, 21, 5}},
+    {{32, 23, 5}},
+    {{32, 24, 5}},
+    {{0, 35, 6}},
+    {{0, 34, 6}},
+    {{0, 33, 6}},
+    {{0, 32, 6}},
+}; /* LL_defaultDTable */
+
+static const FSE_decode_t4 ML_defaultDTable[(1 << ML_DEFAULTNORMLOG) + 1] = {
+    {{ML_DEFAULTNORMLOG, 1, 1}}, /* header : tableLog, fastMode, fastMode */
+    {{0, 0, 6}},		 /* 0 : base, symbol, bits */
+    {{0, 1, 4}},
+    {{32, 2, 5}},
+    {{0, 3, 5}},
+    {{0, 5, 5}},
+    {{0, 6, 5}},
+    {{0, 8, 5}},
+    {{0, 10, 6}},
+    {{0, 13, 6}},
+    {{0, 16, 6}},
+    {{0, 19, 6}},
+    {{0, 22, 6}},
+    {{0, 25, 6}},
+    {{0, 28, 6}},
+    {{0, 31, 6}},
+    {{0, 33, 6}},
+    {{0, 35, 6}},
+    {{0, 37, 6}},
+    {{0, 39, 6}},
+    {{0, 41, 6}},
+    {{0, 43, 6}},
+    {{0, 45, 6}},
+    {{16, 1, 4}},
+    {{0, 2, 4}},
+    {{32, 3, 5}},
+    {{0, 4, 5}},
+    {{32, 6, 5}},
+    {{0, 7, 5}},
+    {{0, 9, 6}},
+    {{0, 12, 6}},
+    {{0, 15, 6}},
+    {{0, 18, 6}},
+    {{0, 21, 6}},
+    {{0, 24, 6}},
+    {{0, 27, 6}},
+    {{0, 30, 6}},
+    {{0, 32, 6}},
+    {{0, 34, 6}},
+    {{0, 36, 6}},
+    {{0, 38, 6}},
+    {{0, 40, 6}},
+    {{0, 42, 6}},
+    {{0, 44, 6}},
+    {{32, 1, 4}},
+    {{48, 1, 4}},
+    {{16, 2, 4}},
+    {{32, 4, 5}},
+    {{32, 5, 5}},
+    {{32, 7, 5}},
+    {{32, 8, 5}},
+    {{0, 11, 6}},
+    {{0, 14, 6}},
+    {{0, 17, 6}},
+    {{0, 20, 6}},
+    {{0, 23, 6}},
+    {{0, 26, 6}},
+    {{0, 29, 6}},
+    {{0, 52, 6}},
+    {{0, 51, 6}},
+    {{0, 50, 6}},
+    {{0, 49, 6}},
+    {{0, 48, 6}},
+    {{0, 47, 6}},
+    {{0, 46, 6}},
+}; /* ML_defaultDTable */
+
+static const FSE_decode_t4 OF_defaultDTable[(1 << OF_DEFAULTNORMLOG) + 1] = {
+    {{OF_DEFAULTNORMLOG, 1, 1}}, /* header : tableLog, fastMode, fastMode */
+    {{0, 0, 5}},		 /* 0 : base, symbol, bits */
+    {{0, 6, 4}},
+    {{0, 9, 5}},
+    {{0, 15, 5}},
+    {{0, 21, 5}},
+    {{0, 3, 5}},
+    {{0, 7, 4}},
+    {{0, 12, 5}},
+    {{0, 18, 5}},
+    {{0, 23, 5}},
+    {{0, 5, 5}},
+    {{0, 8, 4}},
+    {{0, 14, 5}},
+    {{0, 20, 5}},
+    {{0, 2, 5}},
+    {{16, 7, 4}},
+    {{0, 11, 5}},
+    {{0, 17, 5}},
+    {{0, 22, 5}},
+    {{0, 4, 5}},
+    {{16, 8, 4}},
+    {{0, 13, 5}},
+    {{0, 19, 5}},
+    {{0, 1, 5}},
+    {{16, 6, 4}},
+    {{0, 10, 5}},
+    {{0, 16, 5}},
+    {{0, 28, 5}},
+    {{0, 27, 5}},
+    {{0, 26, 5}},
+    {{0, 25, 5}},
+    {{0, 24, 5}},
+}; /* OF_defaultDTable */
+
+/*! ZSTD_buildSeqTable() :
+	@return : nb bytes read from src,
+			  or an error code if it fails, testable with ZSTD_isError()
+*/
+static size_t ZSTD_buildSeqTable(FSE_DTable *DTableSpace, const FSE_DTable **DTablePtr, symbolEncodingType_e type, U32 max, U32 maxLog, const void *src,
+				 size_t srcSize, const FSE_decode_t4 *defaultTable, U32 flagRepeatTable, void *workspace, size_t workspaceSize)
+{
+	const void *const tmpPtr = defaultTable; /* bypass strict aliasing */
+	switch (type) {
+	case set_rle:
+		if (!srcSize)
+			return ERROR(srcSize_wrong);
+		if ((*(const BYTE *)src) > max)
+			return ERROR(corruption_detected);
+		FSE_buildDTable_rle(DTableSpace, *(const BYTE *)src);
+		*DTablePtr = DTableSpace;
+		return 1;
+	case set_basic: *DTablePtr = (const FSE_DTable *)tmpPtr; return 0;
+	case set_repeat:
+		if (!flagRepeatTable)
+			return ERROR(corruption_detected);
+		return 0;
+	default: /* impossible */
+	case set_compressed: {
+		U32 tableLog;
+		S16 *norm = (S16 *)workspace;
+		size_t const spaceUsed32 = ALIGN(sizeof(S16) * (MaxSeq + 1), sizeof(U32)) >> 2;
+
+		if ((spaceUsed32 << 2) > workspaceSize)
+			return ERROR(GENERIC);
+		workspace = (U32 *)workspace + spaceUsed32;
+		workspaceSize -= (spaceUsed32 << 2);
+		{
+			size_t const headerSize = FSE_readNCount(norm, &max, &tableLog, src, srcSize);
+			if (FSE_isError(headerSize))
+				return ERROR(corruption_detected);
+			if (tableLog > maxLog)
+				return ERROR(corruption_detected);
+			FSE_buildDTable_wksp(DTableSpace, norm, max, tableLog, workspace, workspaceSize);
+			*DTablePtr = DTableSpace;
+			return headerSize;
+		}
+	}
+	}
+}
+
+size_t ZSTD_decodeSeqHeaders(ZSTD_DCtx *dctx, int *nbSeqPtr, const void *src, size_t srcSize)
+{
+	const BYTE *const istart = (const BYTE *const)src;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *ip = istart;
+
+	/* check */
+	if (srcSize < MIN_SEQUENCES_SIZE)
+		return ERROR(srcSize_wrong);
+
+	/* SeqHead */
+	{
+		int nbSeq = *ip++;
+		if (!nbSeq) {
+			*nbSeqPtr = 0;
+			return 1;
+		}
+		if (nbSeq > 0x7F) {
+			if (nbSeq == 0xFF) {
+				if (ip + 2 > iend)
+					return ERROR(srcSize_wrong);
+				nbSeq = ZSTD_readLE16(ip) + LONGNBSEQ, ip += 2;
+			} else {
+				if (ip >= iend)
+					return ERROR(srcSize_wrong);
+				nbSeq = ((nbSeq - 0x80) << 8) + *ip++;
+			}
+		}
+		*nbSeqPtr = nbSeq;
+	}
+
+	/* FSE table descriptors */
+	if (ip + 4 > iend)
+		return ERROR(srcSize_wrong); /* minimum possible size */
+	{
+		symbolEncodingType_e const LLtype = (symbolEncodingType_e)(*ip >> 6);
+		symbolEncodingType_e const OFtype = (symbolEncodingType_e)((*ip >> 4) & 3);
+		symbolEncodingType_e const MLtype = (symbolEncodingType_e)((*ip >> 2) & 3);
+		ip++;
+
+		/* Build DTables */
+		{
+			size_t const llhSize = ZSTD_buildSeqTable(dctx->entropy.LLTable, &dctx->LLTptr, LLtype, MaxLL, LLFSELog, ip, iend - ip,
+								  LL_defaultDTable, dctx->fseEntropy, dctx->entropy.workspace, sizeof(dctx->entropy.workspace));
+			if (ZSTD_isError(llhSize))
+				return ERROR(corruption_detected);
+			ip += llhSize;
+		}
+		{
+			size_t const ofhSize = ZSTD_buildSeqTable(dctx->entropy.OFTable, &dctx->OFTptr, OFtype, MaxOff, OffFSELog, ip, iend - ip,
+								  OF_defaultDTable, dctx->fseEntropy, dctx->entropy.workspace, sizeof(dctx->entropy.workspace));
+			if (ZSTD_isError(ofhSize))
+				return ERROR(corruption_detected);
+			ip += ofhSize;
+		}
+		{
+			size_t const mlhSize = ZSTD_buildSeqTable(dctx->entropy.MLTable, &dctx->MLTptr, MLtype, MaxML, MLFSELog, ip, iend - ip,
+								  ML_defaultDTable, dctx->fseEntropy, dctx->entropy.workspace, sizeof(dctx->entropy.workspace));
+			if (ZSTD_isError(mlhSize))
+				return ERROR(corruption_detected);
+			ip += mlhSize;
+		}
+	}
+
+	return ip - istart;
+}
+
+typedef struct {
+	size_t litLength;
+	size_t matchLength;
+	size_t offset;
+	const BYTE *match;
+} seq_t;
+
+typedef struct {
+	BIT_DStream_t DStream;
+	FSE_DState_t stateLL;
+	FSE_DState_t stateOffb;
+	FSE_DState_t stateML;
+	size_t prevOffset[ZSTD_REP_NUM];
+	const BYTE *base;
+	size_t pos;
+	uPtrDiff gotoDict;
+} seqState_t;
+
+FORCE_NOINLINE
+size_t ZSTD_execSequenceLast7(BYTE *op, BYTE *const oend, seq_t sequence, const BYTE **litPtr, const BYTE *const litLimit, const BYTE *const base,
+			      const BYTE *const vBase, const BYTE *const dictEnd)
+{
+	BYTE *const oLitEnd = op + sequence.litLength;
+	size_t const sequenceLength = sequence.litLength + sequence.matchLength;
+	BYTE *const oMatchEnd = op + sequenceLength; /* risk : address space overflow (32-bits) */
+	BYTE *const oend_w = oend - WILDCOPY_OVERLENGTH;
+	const BYTE *const iLitEnd = *litPtr + sequence.litLength;
+	const BYTE *match = oLitEnd - sequence.offset;
+
+	/* check */
+	if (oMatchEnd > oend)
+		return ERROR(dstSize_tooSmall); /* last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend */
+	if (iLitEnd > litLimit)
+		return ERROR(corruption_detected); /* over-read beyond lit buffer */
+	if (oLitEnd <= oend_w)
+		return ERROR(GENERIC); /* Precondition */
+
+	/* copy literals */
+	if (op < oend_w) {
+		ZSTD_wildcopy(op, *litPtr, oend_w - op);
+		*litPtr += oend_w - op;
+		op = oend_w;
+	}
+	while (op < oLitEnd)
+		*op++ = *(*litPtr)++;
+
+	/* copy Match */
+	if (sequence.offset > (size_t)(oLitEnd - base)) {
+		/* offset beyond prefix */
+		if (sequence.offset > (size_t)(oLitEnd - vBase))
+			return ERROR(corruption_detected);
+		match = dictEnd - (base - match);
+		if (match + sequence.matchLength <= dictEnd) {
+			memmove(oLitEnd, match, sequence.matchLength);
+			return sequenceLength;
+		}
+		/* span extDict & currPrefixSegment */
+		{
+			size_t const length1 = dictEnd - match;
+			memmove(oLitEnd, match, length1);
+			op = oLitEnd + length1;
+			sequence.matchLength -= length1;
+			match = base;
+		}
+	}
+	while (op < oMatchEnd)
+		*op++ = *match++;
+	return sequenceLength;
+}
+
+static seq_t ZSTD_decodeSequence(seqState_t *seqState)
+{
+	seq_t seq;
+
+	U32 const llCode = FSE_peekSymbol(&seqState->stateLL);
+	U32 const mlCode = FSE_peekSymbol(&seqState->stateML);
+	U32 const ofCode = FSE_peekSymbol(&seqState->stateOffb); /* <= maxOff, by table construction */
+
+	U32 const llBits = LL_bits[llCode];
+	U32 const mlBits = ML_bits[mlCode];
+	U32 const ofBits = ofCode;
+	U32 const totalBits = llBits + mlBits + ofBits;
+
+	static const U32 LL_base[MaxLL + 1] = {0,  1,  2,  3,  4,  5,  6,  7,  8,    9,     10,    11,    12,    13,     14,     15,     16,     18,
+					       20, 22, 24, 28, 32, 40, 48, 64, 0x80, 0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000, 0x10000};
+
+	static const U32 ML_base[MaxML + 1] = {3,  4,  5,  6,  7,  8,  9,  10,   11,    12,    13,    14,    15,     16,     17,     18,     19,     20,
+					       21, 22, 23, 24, 25, 26, 27, 28,   29,    30,    31,    32,    33,     34,     35,     37,     39,     41,
+					       43, 47, 51, 59, 67, 83, 99, 0x83, 0x103, 0x203, 0x403, 0x803, 0x1003, 0x2003, 0x4003, 0x8003, 0x10003};
+
+	static const U32 OF_base[MaxOff + 1] = {0,       1,	1,	5,	0xD,      0x1D,      0x3D,      0x7D,      0xFD,     0x1FD,
+						0x3FD,   0x7FD,    0xFFD,    0x1FFD,   0x3FFD,   0x7FFD,    0xFFFD,    0x1FFFD,   0x3FFFD,  0x7FFFD,
+						0xFFFFD, 0x1FFFFD, 0x3FFFFD, 0x7FFFFD, 0xFFFFFD, 0x1FFFFFD, 0x3FFFFFD, 0x7FFFFFD, 0xFFFFFFD};
+
+	/* sequence */
+	{
+		size_t offset;
+		if (!ofCode)
+			offset = 0;
+		else {
+			offset = OF_base[ofCode] + BIT_readBitsFast(&seqState->DStream, ofBits); /* <=  (ZSTD_WINDOWLOG_MAX-1) bits */
+			if (ZSTD_32bits())
+				BIT_reloadDStream(&seqState->DStream);
+		}
+
+		if (ofCode <= 1) {
+			offset += (llCode == 0);
+			if (offset) {
+				size_t temp = (offset == 3) ? seqState->prevOffset[0] - 1 : seqState->prevOffset[offset];
+				temp += !temp; /* 0 is not valid; input is corrupted; force offset to 1 */
+				if (offset != 1)
+					seqState->prevOffset[2] = seqState->prevOffset[1];
+				seqState->prevOffset[1] = seqState->prevOffset[0];
+				seqState->prevOffset[0] = offset = temp;
+			} else {
+				offset = seqState->prevOffset[0];
+			}
+		} else {
+			seqState->prevOffset[2] = seqState->prevOffset[1];
+			seqState->prevOffset[1] = seqState->prevOffset[0];
+			seqState->prevOffset[0] = offset;
+		}
+		seq.offset = offset;
+	}
+
+	seq.matchLength = ML_base[mlCode] + ((mlCode > 31) ? BIT_readBitsFast(&seqState->DStream, mlBits) : 0); /* <=  16 bits */
+	if (ZSTD_32bits() && (mlBits + llBits > 24))
+		BIT_reloadDStream(&seqState->DStream);
+
+	seq.litLength = LL_base[llCode] + ((llCode > 15) ? BIT_readBitsFast(&seqState->DStream, llBits) : 0); /* <=  16 bits */
+	if (ZSTD_32bits() || (totalBits > 64 - 7 - (LLFSELog + MLFSELog + OffFSELog)))
+		BIT_reloadDStream(&seqState->DStream);
+
+	/* ANS state update */
+	FSE_updateState(&seqState->stateLL, &seqState->DStream); /* <=  9 bits */
+	FSE_updateState(&seqState->stateML, &seqState->DStream); /* <=  9 bits */
+	if (ZSTD_32bits())
+		BIT_reloadDStream(&seqState->DStream);		   /* <= 18 bits */
+	FSE_updateState(&seqState->stateOffb, &seqState->DStream); /* <=  8 bits */
+
+	seq.match = NULL;
+
+	return seq;
+}
+
+FORCE_INLINE
+size_t ZSTD_execSequence(BYTE *op, BYTE *const oend, seq_t sequence, const BYTE **litPtr, const BYTE *const litLimit, const BYTE *const base,
+			 const BYTE *const vBase, const BYTE *const dictEnd)
+{
+	BYTE *const oLitEnd = op + sequence.litLength;
+	size_t const sequenceLength = sequence.litLength + sequence.matchLength;
+	BYTE *const oMatchEnd = op + sequenceLength; /* risk : address space overflow (32-bits) */
+	BYTE *const oend_w = oend - WILDCOPY_OVERLENGTH;
+	const BYTE *const iLitEnd = *litPtr + sequence.litLength;
+	const BYTE *match = oLitEnd - sequence.offset;
+
+	/* check */
+	if (oMatchEnd > oend)
+		return ERROR(dstSize_tooSmall); /* last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend */
+	if (iLitEnd > litLimit)
+		return ERROR(corruption_detected); /* over-read beyond lit buffer */
+	if (oLitEnd > oend_w)
+		return ZSTD_execSequenceLast7(op, oend, sequence, litPtr, litLimit, base, vBase, dictEnd);
+
+	/* copy Literals */
+	ZSTD_copy8(op, *litPtr);
+	if (sequence.litLength > 8)
+		ZSTD_wildcopy(op + 8, (*litPtr) + 8,
+			      sequence.litLength - 8); /* note : since oLitEnd <= oend-WILDCOPY_OVERLENGTH, no risk of overwrite beyond oend */
+	op = oLitEnd;
+	*litPtr = iLitEnd; /* update for next sequence */
+
+	/* copy Match */
+	if (sequence.offset > (size_t)(oLitEnd - base)) {
+		/* offset beyond prefix */
+		if (sequence.offset > (size_t)(oLitEnd - vBase))
+			return ERROR(corruption_detected);
+		match = dictEnd + (match - base);
+		if (match + sequence.matchLength <= dictEnd) {
+			memmove(oLitEnd, match, sequence.matchLength);
+			return sequenceLength;
+		}
+		/* span extDict & currPrefixSegment */
+		{
+			size_t const length1 = dictEnd - match;
+			memmove(oLitEnd, match, length1);
+			op = oLitEnd + length1;
+			sequence.matchLength -= length1;
+			match = base;
+			if (op > oend_w || sequence.matchLength < MINMATCH) {
+				U32 i;
+				for (i = 0; i < sequence.matchLength; ++i)
+					op[i] = match[i];
+				return sequenceLength;
+			}
+		}
+	}
+	/* Requirement: op <= oend_w && sequence.matchLength >= MINMATCH */
+
+	/* match within prefix */
+	if (sequence.offset < 8) {
+		/* close range match, overlap */
+		static const U32 dec32table[] = {0, 1, 2, 1, 4, 4, 4, 4};   /* added */
+		static const int dec64table[] = {8, 8, 8, 7, 8, 9, 10, 11}; /* subtracted */
+		int const sub2 = dec64table[sequence.offset];
+		op[0] = match[0];
+		op[1] = match[1];
+		op[2] = match[2];
+		op[3] = match[3];
+		match += dec32table[sequence.offset];
+		ZSTD_copy4(op + 4, match);
+		match -= sub2;
+	} else {
+		ZSTD_copy8(op, match);
+	}
+	op += 8;
+	match += 8;
+
+	if (oMatchEnd > oend - (16 - MINMATCH)) {
+		if (op < oend_w) {
+			ZSTD_wildcopy(op, match, oend_w - op);
+			match += oend_w - op;
+			op = oend_w;
+		}
+		while (op < oMatchEnd)
+			*op++ = *match++;
+	} else {
+		ZSTD_wildcopy(op, match, (ptrdiff_t)sequence.matchLength - 8); /* works even if matchLength < 8 */
+	}
+	return sequenceLength;
+}
+
+static size_t ZSTD_decompressSequences(ZSTD_DCtx *dctx, void *dst, size_t maxDstSize, const void *seqStart, size_t seqSize)
+{
+	const BYTE *ip = (const BYTE *)seqStart;
+	const BYTE *const iend = ip + seqSize;
+	BYTE *const ostart = (BYTE * const)dst;
+	BYTE *const oend = ostart + maxDstSize;
+	BYTE *op = ostart;
+	const BYTE *litPtr = dctx->litPtr;
+	const BYTE *const litEnd = litPtr + dctx->litSize;
+	const BYTE *const base = (const BYTE *)(dctx->base);
+	const BYTE *const vBase = (const BYTE *)(dctx->vBase);
+	const BYTE *const dictEnd = (const BYTE *)(dctx->dictEnd);
+	int nbSeq;
+
+	/* Build Decoding Tables */
+	{
+		size_t const seqHSize = ZSTD_decodeSeqHeaders(dctx, &nbSeq, ip, seqSize);
+		if (ZSTD_isError(seqHSize))
+			return seqHSize;
+		ip += seqHSize;
+	}
+
+	/* Regen sequences */
+	if (nbSeq) {
+		seqState_t seqState;
+		dctx->fseEntropy = 1;
+		{
+			U32 i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				seqState.prevOffset[i] = dctx->entropy.rep[i];
+		}
+		CHECK_E(BIT_initDStream(&seqState.DStream, ip, iend - ip), corruption_detected);
+		FSE_initDState(&seqState.stateLL, &seqState.DStream, dctx->LLTptr);
+		FSE_initDState(&seqState.stateOffb, &seqState.DStream, dctx->OFTptr);
+		FSE_initDState(&seqState.stateML, &seqState.DStream, dctx->MLTptr);
+
+		for (; (BIT_reloadDStream(&(seqState.DStream)) <= BIT_DStream_completed) && nbSeq;) {
+			nbSeq--;
+			{
+				seq_t const sequence = ZSTD_decodeSequence(&seqState);
+				size_t const oneSeqSize = ZSTD_execSequence(op, oend, sequence, &litPtr, litEnd, base, vBase, dictEnd);
+				if (ZSTD_isError(oneSeqSize))
+					return oneSeqSize;
+				op += oneSeqSize;
+			}
+		}
+
+		/* check if reached exact end */
+		if (nbSeq)
+			return ERROR(corruption_detected);
+		/* save reps for next block */
+		{
+			U32 i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				dctx->entropy.rep[i] = (U32)(seqState.prevOffset[i]);
+		}
+	}
+
+	/* last literal segment */
+	{
+		size_t const lastLLSize = litEnd - litPtr;
+		if (lastLLSize > (size_t)(oend - op))
+			return ERROR(dstSize_tooSmall);
+		memcpy(op, litPtr, lastLLSize);
+		op += lastLLSize;
+	}
+
+	return op - ostart;
+}
+
+FORCE_INLINE seq_t ZSTD_decodeSequenceLong_generic(seqState_t *seqState, int const longOffsets)
+{
+	seq_t seq;
+
+	U32 const llCode = FSE_peekSymbol(&seqState->stateLL);
+	U32 const mlCode = FSE_peekSymbol(&seqState->stateML);
+	U32 const ofCode = FSE_peekSymbol(&seqState->stateOffb); /* <= maxOff, by table construction */
+
+	U32 const llBits = LL_bits[llCode];
+	U32 const mlBits = ML_bits[mlCode];
+	U32 const ofBits = ofCode;
+	U32 const totalBits = llBits + mlBits + ofBits;
+
+	static const U32 LL_base[MaxLL + 1] = {0,  1,  2,  3,  4,  5,  6,  7,  8,    9,     10,    11,    12,    13,     14,     15,     16,     18,
+					       20, 22, 24, 28, 32, 40, 48, 64, 0x80, 0x100, 0x200, 0x400, 0x800, 0x1000, 0x2000, 0x4000, 0x8000, 0x10000};
+
+	static const U32 ML_base[MaxML + 1] = {3,  4,  5,  6,  7,  8,  9,  10,   11,    12,    13,    14,    15,     16,     17,     18,     19,     20,
+					       21, 22, 23, 24, 25, 26, 27, 28,   29,    30,    31,    32,    33,     34,     35,     37,     39,     41,
+					       43, 47, 51, 59, 67, 83, 99, 0x83, 0x103, 0x203, 0x403, 0x803, 0x1003, 0x2003, 0x4003, 0x8003, 0x10003};
+
+	static const U32 OF_base[MaxOff + 1] = {0,       1,	1,	5,	0xD,      0x1D,      0x3D,      0x7D,      0xFD,     0x1FD,
+						0x3FD,   0x7FD,    0xFFD,    0x1FFD,   0x3FFD,   0x7FFD,    0xFFFD,    0x1FFFD,   0x3FFFD,  0x7FFFD,
+						0xFFFFD, 0x1FFFFD, 0x3FFFFD, 0x7FFFFD, 0xFFFFFD, 0x1FFFFFD, 0x3FFFFFD, 0x7FFFFFD, 0xFFFFFFD};
+
+	/* sequence */
+	{
+		size_t offset;
+		if (!ofCode)
+			offset = 0;
+		else {
+			if (longOffsets) {
+				int const extraBits = ofBits - MIN(ofBits, STREAM_ACCUMULATOR_MIN);
+				offset = OF_base[ofCode] + (BIT_readBitsFast(&seqState->DStream, ofBits - extraBits) << extraBits);
+				if (ZSTD_32bits() || extraBits)
+					BIT_reloadDStream(&seqState->DStream);
+				if (extraBits)
+					offset += BIT_readBitsFast(&seqState->DStream, extraBits);
+			} else {
+				offset = OF_base[ofCode] + BIT_readBitsFast(&seqState->DStream, ofBits); /* <=  (ZSTD_WINDOWLOG_MAX-1) bits */
+				if (ZSTD_32bits())
+					BIT_reloadDStream(&seqState->DStream);
+			}
+		}
+
+		if (ofCode <= 1) {
+			offset += (llCode == 0);
+			if (offset) {
+				size_t temp = (offset == 3) ? seqState->prevOffset[0] - 1 : seqState->prevOffset[offset];
+				temp += !temp; /* 0 is not valid; input is corrupted; force offset to 1 */
+				if (offset != 1)
+					seqState->prevOffset[2] = seqState->prevOffset[1];
+				seqState->prevOffset[1] = seqState->prevOffset[0];
+				seqState->prevOffset[0] = offset = temp;
+			} else {
+				offset = seqState->prevOffset[0];
+			}
+		} else {
+			seqState->prevOffset[2] = seqState->prevOffset[1];
+			seqState->prevOffset[1] = seqState->prevOffset[0];
+			seqState->prevOffset[0] = offset;
+		}
+		seq.offset = offset;
+	}
+
+	seq.matchLength = ML_base[mlCode] + ((mlCode > 31) ? BIT_readBitsFast(&seqState->DStream, mlBits) : 0); /* <=  16 bits */
+	if (ZSTD_32bits() && (mlBits + llBits > 24))
+		BIT_reloadDStream(&seqState->DStream);
+
+	seq.litLength = LL_base[llCode] + ((llCode > 15) ? BIT_readBitsFast(&seqState->DStream, llBits) : 0); /* <=  16 bits */
+	if (ZSTD_32bits() || (totalBits > 64 - 7 - (LLFSELog + MLFSELog + OffFSELog)))
+		BIT_reloadDStream(&seqState->DStream);
+
+	{
+		size_t const pos = seqState->pos + seq.litLength;
+		seq.match = seqState->base + pos - seq.offset; /* single memory segment */
+		if (seq.offset > pos)
+			seq.match += seqState->gotoDict; /* separate memory segment */
+		seqState->pos = pos + seq.matchLength;
+	}
+
+	/* ANS state update */
+	FSE_updateState(&seqState->stateLL, &seqState->DStream); /* <=  9 bits */
+	FSE_updateState(&seqState->stateML, &seqState->DStream); /* <=  9 bits */
+	if (ZSTD_32bits())
+		BIT_reloadDStream(&seqState->DStream);		   /* <= 18 bits */
+	FSE_updateState(&seqState->stateOffb, &seqState->DStream); /* <=  8 bits */
+
+	return seq;
+}
+
+static seq_t ZSTD_decodeSequenceLong(seqState_t *seqState, unsigned const windowSize)
+{
+	if (ZSTD_highbit32(windowSize) > STREAM_ACCUMULATOR_MIN) {
+		return ZSTD_decodeSequenceLong_generic(seqState, 1);
+	} else {
+		return ZSTD_decodeSequenceLong_generic(seqState, 0);
+	}
+}
+
+FORCE_INLINE
+size_t ZSTD_execSequenceLong(BYTE *op, BYTE *const oend, seq_t sequence, const BYTE **litPtr, const BYTE *const litLimit, const BYTE *const base,
+			     const BYTE *const vBase, const BYTE *const dictEnd)
+{
+	BYTE *const oLitEnd = op + sequence.litLength;
+	size_t const sequenceLength = sequence.litLength + sequence.matchLength;
+	BYTE *const oMatchEnd = op + sequenceLength; /* risk : address space overflow (32-bits) */
+	BYTE *const oend_w = oend - WILDCOPY_OVERLENGTH;
+	const BYTE *const iLitEnd = *litPtr + sequence.litLength;
+	const BYTE *match = sequence.match;
+
+	/* check */
+	if (oMatchEnd > oend)
+		return ERROR(dstSize_tooSmall); /* last match must start at a minimum distance of WILDCOPY_OVERLENGTH from oend */
+	if (iLitEnd > litLimit)
+		return ERROR(corruption_detected); /* over-read beyond lit buffer */
+	if (oLitEnd > oend_w)
+		return ZSTD_execSequenceLast7(op, oend, sequence, litPtr, litLimit, base, vBase, dictEnd);
+
+	/* copy Literals */
+	ZSTD_copy8(op, *litPtr);
+	if (sequence.litLength > 8)
+		ZSTD_wildcopy(op + 8, (*litPtr) + 8,
+			      sequence.litLength - 8); /* note : since oLitEnd <= oend-WILDCOPY_OVERLENGTH, no risk of overwrite beyond oend */
+	op = oLitEnd;
+	*litPtr = iLitEnd; /* update for next sequence */
+
+	/* copy Match */
+	if (sequence.offset > (size_t)(oLitEnd - base)) {
+		/* offset beyond prefix */
+		if (sequence.offset > (size_t)(oLitEnd - vBase))
+			return ERROR(corruption_detected);
+		if (match + sequence.matchLength <= dictEnd) {
+			memmove(oLitEnd, match, sequence.matchLength);
+			return sequenceLength;
+		}
+		/* span extDict & currPrefixSegment */
+		{
+			size_t const length1 = dictEnd - match;
+			memmove(oLitEnd, match, length1);
+			op = oLitEnd + length1;
+			sequence.matchLength -= length1;
+			match = base;
+			if (op > oend_w || sequence.matchLength < MINMATCH) {
+				U32 i;
+				for (i = 0; i < sequence.matchLength; ++i)
+					op[i] = match[i];
+				return sequenceLength;
+			}
+		}
+	}
+	/* Requirement: op <= oend_w && sequence.matchLength >= MINMATCH */
+
+	/* match within prefix */
+	if (sequence.offset < 8) {
+		/* close range match, overlap */
+		static const U32 dec32table[] = {0, 1, 2, 1, 4, 4, 4, 4};   /* added */
+		static const int dec64table[] = {8, 8, 8, 7, 8, 9, 10, 11}; /* subtracted */
+		int const sub2 = dec64table[sequence.offset];
+		op[0] = match[0];
+		op[1] = match[1];
+		op[2] = match[2];
+		op[3] = match[3];
+		match += dec32table[sequence.offset];
+		ZSTD_copy4(op + 4, match);
+		match -= sub2;
+	} else {
+		ZSTD_copy8(op, match);
+	}
+	op += 8;
+	match += 8;
+
+	if (oMatchEnd > oend - (16 - MINMATCH)) {
+		if (op < oend_w) {
+			ZSTD_wildcopy(op, match, oend_w - op);
+			match += oend_w - op;
+			op = oend_w;
+		}
+		while (op < oMatchEnd)
+			*op++ = *match++;
+	} else {
+		ZSTD_wildcopy(op, match, (ptrdiff_t)sequence.matchLength - 8); /* works even if matchLength < 8 */
+	}
+	return sequenceLength;
+}
+
+static size_t ZSTD_decompressSequencesLong(ZSTD_DCtx *dctx, void *dst, size_t maxDstSize, const void *seqStart, size_t seqSize)
+{
+	const BYTE *ip = (const BYTE *)seqStart;
+	const BYTE *const iend = ip + seqSize;
+	BYTE *const ostart = (BYTE * const)dst;
+	BYTE *const oend = ostart + maxDstSize;
+	BYTE *op = ostart;
+	const BYTE *litPtr = dctx->litPtr;
+	const BYTE *const litEnd = litPtr + dctx->litSize;
+	const BYTE *const base = (const BYTE *)(dctx->base);
+	const BYTE *const vBase = (const BYTE *)(dctx->vBase);
+	const BYTE *const dictEnd = (const BYTE *)(dctx->dictEnd);
+	unsigned const windowSize = dctx->fParams.windowSize;
+	int nbSeq;
+
+	/* Build Decoding Tables */
+	{
+		size_t const seqHSize = ZSTD_decodeSeqHeaders(dctx, &nbSeq, ip, seqSize);
+		if (ZSTD_isError(seqHSize))
+			return seqHSize;
+		ip += seqHSize;
+	}
+
+	/* Regen sequences */
+	if (nbSeq) {
+#define STORED_SEQS 4
+#define STOSEQ_MASK (STORED_SEQS - 1)
+#define ADVANCED_SEQS 4
+		seq_t *sequences = (seq_t *)dctx->entropy.workspace;
+		int const seqAdvance = MIN(nbSeq, ADVANCED_SEQS);
+		seqState_t seqState;
+		int seqNb;
+		ZSTD_STATIC_ASSERT(sizeof(dctx->entropy.workspace) >= sizeof(seq_t) * STORED_SEQS);
+		dctx->fseEntropy = 1;
+		{
+			U32 i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				seqState.prevOffset[i] = dctx->entropy.rep[i];
+		}
+		seqState.base = base;
+		seqState.pos = (size_t)(op - base);
+		seqState.gotoDict = (uPtrDiff)dictEnd - (uPtrDiff)base; /* cast to avoid undefined behaviour */
+		CHECK_E(BIT_initDStream(&seqState.DStream, ip, iend - ip), corruption_detected);
+		FSE_initDState(&seqState.stateLL, &seqState.DStream, dctx->LLTptr);
+		FSE_initDState(&seqState.stateOffb, &seqState.DStream, dctx->OFTptr);
+		FSE_initDState(&seqState.stateML, &seqState.DStream, dctx->MLTptr);
+
+		/* prepare in advance */
+		for (seqNb = 0; (BIT_reloadDStream(&seqState.DStream) <= BIT_DStream_completed) && seqNb < seqAdvance; seqNb++) {
+			sequences[seqNb] = ZSTD_decodeSequenceLong(&seqState, windowSize);
+		}
+		if (seqNb < seqAdvance)
+			return ERROR(corruption_detected);
+
+		/* decode and decompress */
+		for (; (BIT_reloadDStream(&(seqState.DStream)) <= BIT_DStream_completed) && seqNb < nbSeq; seqNb++) {
+			seq_t const sequence = ZSTD_decodeSequenceLong(&seqState, windowSize);
+			size_t const oneSeqSize =
+			    ZSTD_execSequenceLong(op, oend, sequences[(seqNb - ADVANCED_SEQS) & STOSEQ_MASK], &litPtr, litEnd, base, vBase, dictEnd);
+			if (ZSTD_isError(oneSeqSize))
+				return oneSeqSize;
+			ZSTD_PREFETCH(sequence.match);
+			sequences[seqNb & STOSEQ_MASK] = sequence;
+			op += oneSeqSize;
+		}
+		if (seqNb < nbSeq)
+			return ERROR(corruption_detected);
+
+		/* finish queue */
+		seqNb -= seqAdvance;
+		for (; seqNb < nbSeq; seqNb++) {
+			size_t const oneSeqSize = ZSTD_execSequenceLong(op, oend, sequences[seqNb & STOSEQ_MASK], &litPtr, litEnd, base, vBase, dictEnd);
+			if (ZSTD_isError(oneSeqSize))
+				return oneSeqSize;
+			op += oneSeqSize;
+		}
+
+		/* save reps for next block */
+		{
+			U32 i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				dctx->entropy.rep[i] = (U32)(seqState.prevOffset[i]);
+		}
+	}
+
+	/* last literal segment */
+	{
+		size_t const lastLLSize = litEnd - litPtr;
+		if (lastLLSize > (size_t)(oend - op))
+			return ERROR(dstSize_tooSmall);
+		memcpy(op, litPtr, lastLLSize);
+		op += lastLLSize;
+	}
+
+	return op - ostart;
+}
+
+static size_t ZSTD_decompressBlock_internal(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{ /* blockType == blockCompressed */
+	const BYTE *ip = (const BYTE *)src;
+
+	if (srcSize >= ZSTD_BLOCKSIZE_ABSOLUTEMAX)
+		return ERROR(srcSize_wrong);
+
+	/* Decode literals section */
+	{
+		size_t const litCSize = ZSTD_decodeLiteralsBlock(dctx, src, srcSize);
+		if (ZSTD_isError(litCSize))
+			return litCSize;
+		ip += litCSize;
+		srcSize -= litCSize;
+	}
+	if (sizeof(size_t) > 4) /* do not enable prefetching on 32-bits x86, as it's performance detrimental */
+				/* likely because of register pressure */
+				/* if that's the correct cause, then 32-bits ARM should be affected differently */
+				/* it would be good to test this on ARM real hardware, to see if prefetch version improves speed */
+		if (dctx->fParams.windowSize > (1 << 23))
+			return ZSTD_decompressSequencesLong(dctx, dst, dstCapacity, ip, srcSize);
+	return ZSTD_decompressSequences(dctx, dst, dstCapacity, ip, srcSize);
+}
+
+static void ZSTD_checkContinuity(ZSTD_DCtx *dctx, const void *dst)
+{
+	if (dst != dctx->previousDstEnd) { /* not contiguous */
+		dctx->dictEnd = dctx->previousDstEnd;
+		dctx->vBase = (const char *)dst - ((const char *)(dctx->previousDstEnd) - (const char *)(dctx->base));
+		dctx->base = dst;
+		dctx->previousDstEnd = dst;
+	}
+}
+
+size_t ZSTD_decompressBlock(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	size_t dSize;
+	ZSTD_checkContinuity(dctx, dst);
+	dSize = ZSTD_decompressBlock_internal(dctx, dst, dstCapacity, src, srcSize);
+	dctx->previousDstEnd = (char *)dst + dSize;
+	return dSize;
+}
+
+/** ZSTD_insertBlock() :
+	insert `src` block into `dctx` history. Useful to track uncompressed blocks. */
+size_t ZSTD_insertBlock(ZSTD_DCtx *dctx, const void *blockStart, size_t blockSize)
+{
+	ZSTD_checkContinuity(dctx, blockStart);
+	dctx->previousDstEnd = (const char *)blockStart + blockSize;
+	return blockSize;
+}
+
+size_t ZSTD_generateNxBytes(void *dst, size_t dstCapacity, BYTE byte, size_t length)
+{
+	if (length > dstCapacity)
+		return ERROR(dstSize_tooSmall);
+	memset(dst, byte, length);
+	return length;
+}
+
+/** ZSTD_findFrameCompressedSize() :
+ *  compatible with legacy mode
+ *  `src` must point to the start of a ZSTD frame, ZSTD legacy frame, or skippable frame
+ *  `srcSize` must be at least as large as the frame contained
+ *  @return : the compressed size of the frame starting at `src` */
+size_t ZSTD_findFrameCompressedSize(const void *src, size_t srcSize)
+{
+	if (srcSize >= ZSTD_skippableHeaderSize && (ZSTD_readLE32(src) & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) {
+		return ZSTD_skippableHeaderSize + ZSTD_readLE32((const BYTE *)src + 4);
+	} else {
+		const BYTE *ip = (const BYTE *)src;
+		const BYTE *const ipstart = ip;
+		size_t remainingSize = srcSize;
+		ZSTD_frameParams fParams;
+
+		size_t const headerSize = ZSTD_frameHeaderSize(ip, remainingSize);
+		if (ZSTD_isError(headerSize))
+			return headerSize;
+
+		/* Frame Header */
+		{
+			size_t const ret = ZSTD_getFrameParams(&fParams, ip, remainingSize);
+			if (ZSTD_isError(ret))
+				return ret;
+			if (ret > 0)
+				return ERROR(srcSize_wrong);
+		}
+
+		ip += headerSize;
+		remainingSize -= headerSize;
+
+		/* Loop on each block */
+		while (1) {
+			blockProperties_t blockProperties;
+			size_t const cBlockSize = ZSTD_getcBlockSize(ip, remainingSize, &blockProperties);
+			if (ZSTD_isError(cBlockSize))
+				return cBlockSize;
+
+			if (ZSTD_blockHeaderSize + cBlockSize > remainingSize)
+				return ERROR(srcSize_wrong);
+
+			ip += ZSTD_blockHeaderSize + cBlockSize;
+			remainingSize -= ZSTD_blockHeaderSize + cBlockSize;
+
+			if (blockProperties.lastBlock)
+				break;
+		}
+
+		if (fParams.checksumFlag) { /* Frame content checksum */
+			if (remainingSize < 4)
+				return ERROR(srcSize_wrong);
+			ip += 4;
+			remainingSize -= 4;
+		}
+
+		return ip - ipstart;
+	}
+}
+
+/*! ZSTD_decompressFrame() :
+*   @dctx must be properly initialized */
+static size_t ZSTD_decompressFrame(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void **srcPtr, size_t *srcSizePtr)
+{
+	const BYTE *ip = (const BYTE *)(*srcPtr);
+	BYTE *const ostart = (BYTE * const)dst;
+	BYTE *const oend = ostart + dstCapacity;
+	BYTE *op = ostart;
+	size_t remainingSize = *srcSizePtr;
+
+	/* check */
+	if (remainingSize < ZSTD_frameHeaderSize_min + ZSTD_blockHeaderSize)
+		return ERROR(srcSize_wrong);
+
+	/* Frame Header */
+	{
+		size_t const frameHeaderSize = ZSTD_frameHeaderSize(ip, ZSTD_frameHeaderSize_prefix);
+		if (ZSTD_isError(frameHeaderSize))
+			return frameHeaderSize;
+		if (remainingSize < frameHeaderSize + ZSTD_blockHeaderSize)
+			return ERROR(srcSize_wrong);
+		CHECK_F(ZSTD_decodeFrameHeader(dctx, ip, frameHeaderSize));
+		ip += frameHeaderSize;
+		remainingSize -= frameHeaderSize;
+	}
+
+	/* Loop on each block */
+	while (1) {
+		size_t decodedSize;
+		blockProperties_t blockProperties;
+		size_t const cBlockSize = ZSTD_getcBlockSize(ip, remainingSize, &blockProperties);
+		if (ZSTD_isError(cBlockSize))
+			return cBlockSize;
+
+		ip += ZSTD_blockHeaderSize;
+		remainingSize -= ZSTD_blockHeaderSize;
+		if (cBlockSize > remainingSize)
+			return ERROR(srcSize_wrong);
+
+		switch (blockProperties.blockType) {
+		case bt_compressed: decodedSize = ZSTD_decompressBlock_internal(dctx, op, oend - op, ip, cBlockSize); break;
+		case bt_raw: decodedSize = ZSTD_copyRawBlock(op, oend - op, ip, cBlockSize); break;
+		case bt_rle: decodedSize = ZSTD_generateNxBytes(op, oend - op, *ip, blockProperties.origSize); break;
+		case bt_reserved:
+		default: return ERROR(corruption_detected);
+		}
+
+		if (ZSTD_isError(decodedSize))
+			return decodedSize;
+		if (dctx->fParams.checksumFlag)
+			xxh64_update(&dctx->xxhState, op, decodedSize);
+		op += decodedSize;
+		ip += cBlockSize;
+		remainingSize -= cBlockSize;
+		if (blockProperties.lastBlock)
+			break;
+	}
+
+	if (dctx->fParams.checksumFlag) { /* Frame content checksum verification */
+		U32 const checkCalc = (U32)xxh64_digest(&dctx->xxhState);
+		U32 checkRead;
+		if (remainingSize < 4)
+			return ERROR(checksum_wrong);
+		checkRead = ZSTD_readLE32(ip);
+		if (checkRead != checkCalc)
+			return ERROR(checksum_wrong);
+		ip += 4;
+		remainingSize -= 4;
+	}
+
+	/* Allow caller to get size read */
+	*srcPtr = ip;
+	*srcSizePtr = remainingSize;
+	return op - ostart;
+}
+
+static const void *ZSTD_DDictDictContent(const ZSTD_DDict *ddict);
+static size_t ZSTD_DDictDictSize(const ZSTD_DDict *ddict);
+
+static size_t ZSTD_decompressMultiFrame(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, const void *dict, size_t dictSize,
+					const ZSTD_DDict *ddict)
+{
+	void *const dststart = dst;
+
+	if (ddict) {
+		if (dict) {
+			/* programmer error, these two cases should be mutually exclusive */
+			return ERROR(GENERIC);
+		}
+
+		dict = ZSTD_DDictDictContent(ddict);
+		dictSize = ZSTD_DDictDictSize(ddict);
+	}
+
+	while (srcSize >= ZSTD_frameHeaderSize_prefix) {
+		U32 magicNumber;
+
+		magicNumber = ZSTD_readLE32(src);
+		if (magicNumber != ZSTD_MAGICNUMBER) {
+			if ((magicNumber & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) {
+				size_t skippableSize;
+				if (srcSize < ZSTD_skippableHeaderSize)
+					return ERROR(srcSize_wrong);
+				skippableSize = ZSTD_readLE32((const BYTE *)src + 4) + ZSTD_skippableHeaderSize;
+				if (srcSize < skippableSize) {
+					return ERROR(srcSize_wrong);
+				}
+
+				src = (const BYTE *)src + skippableSize;
+				srcSize -= skippableSize;
+				continue;
+			} else {
+				return ERROR(prefix_unknown);
+			}
+		}
+
+		if (ddict) {
+			/* we were called from ZSTD_decompress_usingDDict */
+			ZSTD_refDDict(dctx, ddict);
+		} else {
+			/* this will initialize correctly with no dict if dict == NULL, so
+			 * use this in all cases but ddict */
+			CHECK_F(ZSTD_decompressBegin_usingDict(dctx, dict, dictSize));
+		}
+		ZSTD_checkContinuity(dctx, dst);
+
+		{
+			const size_t res = ZSTD_decompressFrame(dctx, dst, dstCapacity, &src, &srcSize);
+			if (ZSTD_isError(res))
+				return res;
+			/* don't need to bounds check this, ZSTD_decompressFrame will have
+			 * already */
+			dst = (BYTE *)dst + res;
+			dstCapacity -= res;
+		}
+	}
+
+	if (srcSize)
+		return ERROR(srcSize_wrong); /* input not entirely consumed */
+
+	return (BYTE *)dst - (BYTE *)dststart;
+}
+
+size_t ZSTD_decompress_usingDict(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, const void *dict, size_t dictSize)
+{
+	return ZSTD_decompressMultiFrame(dctx, dst, dstCapacity, src, srcSize, dict, dictSize, NULL);
+}
+
+size_t ZSTD_decompressDCtx(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	return ZSTD_decompress_usingDict(dctx, dst, dstCapacity, src, srcSize, NULL, 0);
+}
+
+/*-**************************************
+*   Advanced Streaming Decompression API
+*   Bufferless and synchronous
+****************************************/
+size_t ZSTD_nextSrcSizeToDecompress(ZSTD_DCtx *dctx) { return dctx->expected; }
+
+ZSTD_nextInputType_e ZSTD_nextInputType(ZSTD_DCtx *dctx)
+{
+	switch (dctx->stage) {
+	default: /* should not happen */
+	case ZSTDds_getFrameHeaderSize:
+	case ZSTDds_decodeFrameHeader: return ZSTDnit_frameHeader;
+	case ZSTDds_decodeBlockHeader: return ZSTDnit_blockHeader;
+	case ZSTDds_decompressBlock: return ZSTDnit_block;
+	case ZSTDds_decompressLastBlock: return ZSTDnit_lastBlock;
+	case ZSTDds_checkChecksum: return ZSTDnit_checksum;
+	case ZSTDds_decodeSkippableHeader:
+	case ZSTDds_skipFrame: return ZSTDnit_skippableFrame;
+	}
+}
+
+int ZSTD_isSkipFrame(ZSTD_DCtx *dctx) { return dctx->stage == ZSTDds_skipFrame; } /* for zbuff */
+
+/** ZSTD_decompressContinue() :
+*   @return : nb of bytes generated into `dst` (necessarily <= `dstCapacity)
+*             or an error code, which can be tested using ZSTD_isError() */
+size_t ZSTD_decompressContinue(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	/* Sanity check */
+	if (srcSize != dctx->expected)
+		return ERROR(srcSize_wrong);
+	if (dstCapacity)
+		ZSTD_checkContinuity(dctx, dst);
+
+	switch (dctx->stage) {
+	case ZSTDds_getFrameHeaderSize:
+		if (srcSize != ZSTD_frameHeaderSize_prefix)
+			return ERROR(srcSize_wrong);					/* impossible */
+		if ((ZSTD_readLE32(src) & 0xFFFFFFF0U) == ZSTD_MAGIC_SKIPPABLE_START) { /* skippable frame */
+			memcpy(dctx->headerBuffer, src, ZSTD_frameHeaderSize_prefix);
+			dctx->expected = ZSTD_skippableHeaderSize - ZSTD_frameHeaderSize_prefix; /* magic number + skippable frame length */
+			dctx->stage = ZSTDds_decodeSkippableHeader;
+			return 0;
+		}
+		dctx->headerSize = ZSTD_frameHeaderSize(src, ZSTD_frameHeaderSize_prefix);
+		if (ZSTD_isError(dctx->headerSize))
+			return dctx->headerSize;
+		memcpy(dctx->headerBuffer, src, ZSTD_frameHeaderSize_prefix);
+		if (dctx->headerSize > ZSTD_frameHeaderSize_prefix) {
+			dctx->expected = dctx->headerSize - ZSTD_frameHeaderSize_prefix;
+			dctx->stage = ZSTDds_decodeFrameHeader;
+			return 0;
+		}
+		dctx->expected = 0; /* not necessary to copy more */
+
+	case ZSTDds_decodeFrameHeader:
+		memcpy(dctx->headerBuffer + ZSTD_frameHeaderSize_prefix, src, dctx->expected);
+		CHECK_F(ZSTD_decodeFrameHeader(dctx, dctx->headerBuffer, dctx->headerSize));
+		dctx->expected = ZSTD_blockHeaderSize;
+		dctx->stage = ZSTDds_decodeBlockHeader;
+		return 0;
+
+	case ZSTDds_decodeBlockHeader: {
+		blockProperties_t bp;
+		size_t const cBlockSize = ZSTD_getcBlockSize(src, ZSTD_blockHeaderSize, &bp);
+		if (ZSTD_isError(cBlockSize))
+			return cBlockSize;
+		dctx->expected = cBlockSize;
+		dctx->bType = bp.blockType;
+		dctx->rleSize = bp.origSize;
+		if (cBlockSize) {
+			dctx->stage = bp.lastBlock ? ZSTDds_decompressLastBlock : ZSTDds_decompressBlock;
+			return 0;
+		}
+		/* empty block */
+		if (bp.lastBlock) {
+			if (dctx->fParams.checksumFlag) {
+				dctx->expected = 4;
+				dctx->stage = ZSTDds_checkChecksum;
+			} else {
+				dctx->expected = 0; /* end of frame */
+				dctx->stage = ZSTDds_getFrameHeaderSize;
+			}
+		} else {
+			dctx->expected = 3; /* go directly to next header */
+			dctx->stage = ZSTDds_decodeBlockHeader;
+		}
+		return 0;
+	}
+	case ZSTDds_decompressLastBlock:
+	case ZSTDds_decompressBlock: {
+		size_t rSize;
+		switch (dctx->bType) {
+		case bt_compressed: rSize = ZSTD_decompressBlock_internal(dctx, dst, dstCapacity, src, srcSize); break;
+		case bt_raw: rSize = ZSTD_copyRawBlock(dst, dstCapacity, src, srcSize); break;
+		case bt_rle: rSize = ZSTD_setRleBlock(dst, dstCapacity, src, srcSize, dctx->rleSize); break;
+		case bt_reserved: /* should never happen */
+		default: return ERROR(corruption_detected);
+		}
+		if (ZSTD_isError(rSize))
+			return rSize;
+		if (dctx->fParams.checksumFlag)
+			xxh64_update(&dctx->xxhState, dst, rSize);
+
+		if (dctx->stage == ZSTDds_decompressLastBlock) { /* end of frame */
+			if (dctx->fParams.checksumFlag) {	/* another round for frame checksum */
+				dctx->expected = 4;
+				dctx->stage = ZSTDds_checkChecksum;
+			} else {
+				dctx->expected = 0; /* ends here */
+				dctx->stage = ZSTDds_getFrameHeaderSize;
+			}
+		} else {
+			dctx->stage = ZSTDds_decodeBlockHeader;
+			dctx->expected = ZSTD_blockHeaderSize;
+			dctx->previousDstEnd = (char *)dst + rSize;
+		}
+		return rSize;
+	}
+	case ZSTDds_checkChecksum: {
+		U32 const h32 = (U32)xxh64_digest(&dctx->xxhState);
+		U32 const check32 = ZSTD_readLE32(src); /* srcSize == 4, guaranteed by dctx->expected */
+		if (check32 != h32)
+			return ERROR(checksum_wrong);
+		dctx->expected = 0;
+		dctx->stage = ZSTDds_getFrameHeaderSize;
+		return 0;
+	}
+	case ZSTDds_decodeSkippableHeader: {
+		memcpy(dctx->headerBuffer + ZSTD_frameHeaderSize_prefix, src, dctx->expected);
+		dctx->expected = ZSTD_readLE32(dctx->headerBuffer + 4);
+		dctx->stage = ZSTDds_skipFrame;
+		return 0;
+	}
+	case ZSTDds_skipFrame: {
+		dctx->expected = 0;
+		dctx->stage = ZSTDds_getFrameHeaderSize;
+		return 0;
+	}
+	default:
+		return ERROR(GENERIC); /* impossible */
+	}
+}
+
+static size_t ZSTD_refDictContent(ZSTD_DCtx *dctx, const void *dict, size_t dictSize)
+{
+	dctx->dictEnd = dctx->previousDstEnd;
+	dctx->vBase = (const char *)dict - ((const char *)(dctx->previousDstEnd) - (const char *)(dctx->base));
+	dctx->base = dict;
+	dctx->previousDstEnd = (const char *)dict + dictSize;
+	return 0;
+}
+
+/* ZSTD_loadEntropy() :
+ * dict : must point at beginning of a valid zstd dictionary
+ * @return : size of entropy tables read */
+static size_t ZSTD_loadEntropy(ZSTD_entropyTables_t *entropy, const void *const dict, size_t const dictSize)
+{
+	const BYTE *dictPtr = (const BYTE *)dict;
+	const BYTE *const dictEnd = dictPtr + dictSize;
+
+	if (dictSize <= 8)
+		return ERROR(dictionary_corrupted);
+	dictPtr += 8; /* skip header = magic + dictID */
+
+	{
+		size_t const hSize = HUF_readDTableX4_wksp(entropy->hufTable, dictPtr, dictEnd - dictPtr, entropy->workspace, sizeof(entropy->workspace));
+		if (HUF_isError(hSize))
+			return ERROR(dictionary_corrupted);
+		dictPtr += hSize;
+	}
+
+	{
+		short offcodeNCount[MaxOff + 1];
+		U32 offcodeMaxValue = MaxOff, offcodeLog;
+		size_t const offcodeHeaderSize = FSE_readNCount(offcodeNCount, &offcodeMaxValue, &offcodeLog, dictPtr, dictEnd - dictPtr);
+		if (FSE_isError(offcodeHeaderSize))
+			return ERROR(dictionary_corrupted);
+		if (offcodeLog > OffFSELog)
+			return ERROR(dictionary_corrupted);
+		CHECK_E(FSE_buildDTable_wksp(entropy->OFTable, offcodeNCount, offcodeMaxValue, offcodeLog, entropy->workspace, sizeof(entropy->workspace)), dictionary_corrupted);
+		dictPtr += offcodeHeaderSize;
+	}
+
+	{
+		short matchlengthNCount[MaxML + 1];
+		unsigned matchlengthMaxValue = MaxML, matchlengthLog;
+		size_t const matchlengthHeaderSize = FSE_readNCount(matchlengthNCount, &matchlengthMaxValue, &matchlengthLog, dictPtr, dictEnd - dictPtr);
+		if (FSE_isError(matchlengthHeaderSize))
+			return ERROR(dictionary_corrupted);
+		if (matchlengthLog > MLFSELog)
+			return ERROR(dictionary_corrupted);
+		CHECK_E(FSE_buildDTable_wksp(entropy->MLTable, matchlengthNCount, matchlengthMaxValue, matchlengthLog, entropy->workspace, sizeof(entropy->workspace)), dictionary_corrupted);
+		dictPtr += matchlengthHeaderSize;
+	}
+
+	{
+		short litlengthNCount[MaxLL + 1];
+		unsigned litlengthMaxValue = MaxLL, litlengthLog;
+		size_t const litlengthHeaderSize = FSE_readNCount(litlengthNCount, &litlengthMaxValue, &litlengthLog, dictPtr, dictEnd - dictPtr);
+		if (FSE_isError(litlengthHeaderSize))
+			return ERROR(dictionary_corrupted);
+		if (litlengthLog > LLFSELog)
+			return ERROR(dictionary_corrupted);
+		CHECK_E(FSE_buildDTable_wksp(entropy->LLTable, litlengthNCount, litlengthMaxValue, litlengthLog, entropy->workspace, sizeof(entropy->workspace)), dictionary_corrupted);
+		dictPtr += litlengthHeaderSize;
+	}
+
+	if (dictPtr + 12 > dictEnd)
+		return ERROR(dictionary_corrupted);
+	{
+		int i;
+		size_t const dictContentSize = (size_t)(dictEnd - (dictPtr + 12));
+		for (i = 0; i < 3; i++) {
+			U32 const rep = ZSTD_readLE32(dictPtr);
+			dictPtr += 4;
+			if (rep == 0 || rep >= dictContentSize)
+				return ERROR(dictionary_corrupted);
+			entropy->rep[i] = rep;
+		}
+	}
+
+	return dictPtr - (const BYTE *)dict;
+}
+
+static size_t ZSTD_decompress_insertDictionary(ZSTD_DCtx *dctx, const void *dict, size_t dictSize)
+{
+	if (dictSize < 8)
+		return ZSTD_refDictContent(dctx, dict, dictSize);
+	{
+		U32 const magic = ZSTD_readLE32(dict);
+		if (magic != ZSTD_DICT_MAGIC) {
+			return ZSTD_refDictContent(dctx, dict, dictSize); /* pure content mode */
+		}
+	}
+	dctx->dictID = ZSTD_readLE32((const char *)dict + 4);
+
+	/* load entropy tables */
+	{
+		size_t const eSize = ZSTD_loadEntropy(&dctx->entropy, dict, dictSize);
+		if (ZSTD_isError(eSize))
+			return ERROR(dictionary_corrupted);
+		dict = (const char *)dict + eSize;
+		dictSize -= eSize;
+	}
+	dctx->litEntropy = dctx->fseEntropy = 1;
+
+	/* reference dictionary content */
+	return ZSTD_refDictContent(dctx, dict, dictSize);
+}
+
+size_t ZSTD_decompressBegin_usingDict(ZSTD_DCtx *dctx, const void *dict, size_t dictSize)
+{
+	CHECK_F(ZSTD_decompressBegin(dctx));
+	if (dict && dictSize)
+		CHECK_E(ZSTD_decompress_insertDictionary(dctx, dict, dictSize), dictionary_corrupted);
+	return 0;
+}
+
+/* ======   ZSTD_DDict   ====== */
+
+struct ZSTD_DDict_s {
+	void *dictBuffer;
+	const void *dictContent;
+	size_t dictSize;
+	ZSTD_entropyTables_t entropy;
+	U32 dictID;
+	U32 entropyPresent;
+	ZSTD_customMem cMem;
+}; /* typedef'd to ZSTD_DDict within "zstd.h" */
+
+size_t ZSTD_DDictWorkspaceBound(void) { return ZSTD_ALIGN(sizeof(ZSTD_stack)) + ZSTD_ALIGN(sizeof(ZSTD_DDict)); }
+
+static const void *ZSTD_DDictDictContent(const ZSTD_DDict *ddict) { return ddict->dictContent; }
+
+static size_t ZSTD_DDictDictSize(const ZSTD_DDict *ddict) { return ddict->dictSize; }
+
+static void ZSTD_refDDict(ZSTD_DCtx *dstDCtx, const ZSTD_DDict *ddict)
+{
+	ZSTD_decompressBegin(dstDCtx); /* init */
+	if (ddict) {		       /* support refDDict on NULL */
+		dstDCtx->dictID = ddict->dictID;
+		dstDCtx->base = ddict->dictContent;
+		dstDCtx->vBase = ddict->dictContent;
+		dstDCtx->dictEnd = (const BYTE *)ddict->dictContent + ddict->dictSize;
+		dstDCtx->previousDstEnd = dstDCtx->dictEnd;
+		if (ddict->entropyPresent) {
+			dstDCtx->litEntropy = 1;
+			dstDCtx->fseEntropy = 1;
+			dstDCtx->LLTptr = ddict->entropy.LLTable;
+			dstDCtx->MLTptr = ddict->entropy.MLTable;
+			dstDCtx->OFTptr = ddict->entropy.OFTable;
+			dstDCtx->HUFptr = ddict->entropy.hufTable;
+			dstDCtx->entropy.rep[0] = ddict->entropy.rep[0];
+			dstDCtx->entropy.rep[1] = ddict->entropy.rep[1];
+			dstDCtx->entropy.rep[2] = ddict->entropy.rep[2];
+		} else {
+			dstDCtx->litEntropy = 0;
+			dstDCtx->fseEntropy = 0;
+		}
+	}
+}
+
+static size_t ZSTD_loadEntropy_inDDict(ZSTD_DDict *ddict)
+{
+	ddict->dictID = 0;
+	ddict->entropyPresent = 0;
+	if (ddict->dictSize < 8)
+		return 0;
+	{
+		U32 const magic = ZSTD_readLE32(ddict->dictContent);
+		if (magic != ZSTD_DICT_MAGIC)
+			return 0; /* pure content mode */
+	}
+	ddict->dictID = ZSTD_readLE32((const char *)ddict->dictContent + 4);
+
+	/* load entropy tables */
+	CHECK_E(ZSTD_loadEntropy(&ddict->entropy, ddict->dictContent, ddict->dictSize), dictionary_corrupted);
+	ddict->entropyPresent = 1;
+	return 0;
+}
+
+static ZSTD_DDict *ZSTD_createDDict_advanced(const void *dict, size_t dictSize, unsigned byReference, ZSTD_customMem customMem)
+{
+	if (!customMem.customAlloc || !customMem.customFree)
+		return NULL;
+
+	{
+		ZSTD_DDict *const ddict = (ZSTD_DDict *)ZSTD_malloc(sizeof(ZSTD_DDict), customMem);
+		if (!ddict)
+			return NULL;
+		ddict->cMem = customMem;
+
+		if ((byReference) || (!dict) || (!dictSize)) {
+			ddict->dictBuffer = NULL;
+			ddict->dictContent = dict;
+		} else {
+			void *const internalBuffer = ZSTD_malloc(dictSize, customMem);
+			if (!internalBuffer) {
+				ZSTD_freeDDict(ddict);
+				return NULL;
+			}
+			memcpy(internalBuffer, dict, dictSize);
+			ddict->dictBuffer = internalBuffer;
+			ddict->dictContent = internalBuffer;
+		}
+		ddict->dictSize = dictSize;
+		ddict->entropy.hufTable[0] = (HUF_DTable)((HufLog)*0x1000001); /* cover both little and big endian */
+		/* parse dictionary content */
+		{
+			size_t const errorCode = ZSTD_loadEntropy_inDDict(ddict);
+			if (ZSTD_isError(errorCode)) {
+				ZSTD_freeDDict(ddict);
+				return NULL;
+			}
+		}
+
+		return ddict;
+	}
+}
+
+/*! ZSTD_initDDict() :
+*   Create a digested dictionary, to start decompression without startup delay.
+*   `dict` content is copied inside DDict.
+*   Consequently, `dict` can be released after `ZSTD_DDict` creation */
+ZSTD_DDict *ZSTD_initDDict(const void *dict, size_t dictSize, void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem const stackMem = ZSTD_initStack(workspace, workspaceSize);
+	return ZSTD_createDDict_advanced(dict, dictSize, 1, stackMem);
+}
+
+size_t ZSTD_freeDDict(ZSTD_DDict *ddict)
+{
+	if (ddict == NULL)
+		return 0; /* support free on NULL */
+	{
+		ZSTD_customMem const cMem = ddict->cMem;
+		ZSTD_free(ddict->dictBuffer, cMem);
+		ZSTD_free(ddict, cMem);
+		return 0;
+	}
+}
+
+/*! ZSTD_getDictID_fromDict() :
+ *  Provides the dictID stored within dictionary.
+ *  if @return == 0, the dictionary is not conformant with Zstandard specification.
+ *  It can still be loaded, but as a content-only dictionary. */
+unsigned ZSTD_getDictID_fromDict(const void *dict, size_t dictSize)
+{
+	if (dictSize < 8)
+		return 0;
+	if (ZSTD_readLE32(dict) != ZSTD_DICT_MAGIC)
+		return 0;
+	return ZSTD_readLE32((const char *)dict + 4);
+}
+
+/*! ZSTD_getDictID_fromDDict() :
+ *  Provides the dictID of the dictionary loaded into `ddict`.
+ *  If @return == 0, the dictionary is not conformant to Zstandard specification, or empty.
+ *  Non-conformant dictionaries can still be loaded, but as content-only dictionaries. */
+unsigned ZSTD_getDictID_fromDDict(const ZSTD_DDict *ddict)
+{
+	if (ddict == NULL)
+		return 0;
+	return ZSTD_getDictID_fromDict(ddict->dictContent, ddict->dictSize);
+}
+
+/*! ZSTD_getDictID_fromFrame() :
+ *  Provides the dictID required to decompressed the frame stored within `src`.
+ *  If @return == 0, the dictID could not be decoded.
+ *  This could for one of the following reasons :
+ *  - The frame does not require a dictionary to be decoded (most common case).
+ *  - The frame was built with dictID intentionally removed. Whatever dictionary is necessary is a hidden information.
+ *    Note : this use case also happens when using a non-conformant dictionary.
+ *  - `srcSize` is too small, and as a result, the frame header could not be decoded (only possible if `srcSize < ZSTD_FRAMEHEADERSIZE_MAX`).
+ *  - This is not a Zstandard frame.
+ *  When identifying the exact failure cause, it's possible to used ZSTD_getFrameParams(), which will provide a more precise error code. */
+unsigned ZSTD_getDictID_fromFrame(const void *src, size_t srcSize)
+{
+	ZSTD_frameParams zfp = {0, 0, 0, 0};
+	size_t const hError = ZSTD_getFrameParams(&zfp, src, srcSize);
+	if (ZSTD_isError(hError))
+		return 0;
+	return zfp.dictID;
+}
+
+/*! ZSTD_decompress_usingDDict() :
+*   Decompression using a pre-digested Dictionary
+*   Use dictionary without significant overhead. */
+size_t ZSTD_decompress_usingDDict(ZSTD_DCtx *dctx, void *dst, size_t dstCapacity, const void *src, size_t srcSize, const ZSTD_DDict *ddict)
+{
+	/* pass content and size in case legacy frames are encountered */
+	return ZSTD_decompressMultiFrame(dctx, dst, dstCapacity, src, srcSize, NULL, 0, ddict);
+}
+
+/*=====================================
+*   Streaming decompression
+*====================================*/
+
+typedef enum { zdss_init, zdss_loadHeader, zdss_read, zdss_load, zdss_flush } ZSTD_dStreamStage;
+
+/* *** Resource management *** */
+struct ZSTD_DStream_s {
+	ZSTD_DCtx *dctx;
+	ZSTD_DDict *ddictLocal;
+	const ZSTD_DDict *ddict;
+	ZSTD_frameParams fParams;
+	ZSTD_dStreamStage stage;
+	char *inBuff;
+	size_t inBuffSize;
+	size_t inPos;
+	size_t maxWindowSize;
+	char *outBuff;
+	size_t outBuffSize;
+	size_t outStart;
+	size_t outEnd;
+	size_t blockSize;
+	BYTE headerBuffer[ZSTD_FRAMEHEADERSIZE_MAX]; /* tmp buffer to store frame header */
+	size_t lhSize;
+	ZSTD_customMem customMem;
+	void *legacyContext;
+	U32 previousLegacyVersion;
+	U32 legacyVersion;
+	U32 hostageByte;
+}; /* typedef'd to ZSTD_DStream within "zstd.h" */
+
+size_t ZSTD_DStreamWorkspaceBound(size_t maxWindowSize)
+{
+	size_t const blockSize = MIN(maxWindowSize, ZSTD_BLOCKSIZE_ABSOLUTEMAX);
+	size_t const inBuffSize = blockSize;
+	size_t const outBuffSize = maxWindowSize + blockSize + WILDCOPY_OVERLENGTH * 2;
+	return ZSTD_DCtxWorkspaceBound() + ZSTD_ALIGN(sizeof(ZSTD_DStream)) + ZSTD_ALIGN(inBuffSize) + ZSTD_ALIGN(outBuffSize);
+}
+
+static ZSTD_DStream *ZSTD_createDStream_advanced(ZSTD_customMem customMem)
+{
+	ZSTD_DStream *zds;
+
+	if (!customMem.customAlloc || !customMem.customFree)
+		return NULL;
+
+	zds = (ZSTD_DStream *)ZSTD_malloc(sizeof(ZSTD_DStream), customMem);
+	if (zds == NULL)
+		return NULL;
+	memset(zds, 0, sizeof(ZSTD_DStream));
+	memcpy(&zds->customMem, &customMem, sizeof(ZSTD_customMem));
+	zds->dctx = ZSTD_createDCtx_advanced(customMem);
+	if (zds->dctx == NULL) {
+		ZSTD_freeDStream(zds);
+		return NULL;
+	}
+	zds->stage = zdss_init;
+	zds->maxWindowSize = ZSTD_MAXWINDOWSIZE_DEFAULT;
+	return zds;
+}
+
+ZSTD_DStream *ZSTD_initDStream(size_t maxWindowSize, void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem const stackMem = ZSTD_initStack(workspace, workspaceSize);
+	ZSTD_DStream *zds = ZSTD_createDStream_advanced(stackMem);
+	if (!zds) {
+		return NULL;
+	}
+
+	zds->maxWindowSize = maxWindowSize;
+	zds->stage = zdss_loadHeader;
+	zds->lhSize = zds->inPos = zds->outStart = zds->outEnd = 0;
+	ZSTD_freeDDict(zds->ddictLocal);
+	zds->ddictLocal = NULL;
+	zds->ddict = zds->ddictLocal;
+	zds->legacyVersion = 0;
+	zds->hostageByte = 0;
+
+	{
+		size_t const blockSize = MIN(zds->maxWindowSize, ZSTD_BLOCKSIZE_ABSOLUTEMAX);
+		size_t const neededOutSize = zds->maxWindowSize + blockSize + WILDCOPY_OVERLENGTH * 2;
+
+		zds->inBuff = (char *)ZSTD_malloc(blockSize, zds->customMem);
+		zds->inBuffSize = blockSize;
+		zds->outBuff = (char *)ZSTD_malloc(neededOutSize, zds->customMem);
+		zds->outBuffSize = neededOutSize;
+		if (zds->inBuff == NULL || zds->outBuff == NULL) {
+			ZSTD_freeDStream(zds);
+			return NULL;
+		}
+	}
+	return zds;
+}
+
+ZSTD_DStream *ZSTD_initDStream_usingDDict(size_t maxWindowSize, const ZSTD_DDict *ddict, void *workspace, size_t workspaceSize)
+{
+	ZSTD_DStream *zds = ZSTD_initDStream(maxWindowSize, workspace, workspaceSize);
+	if (zds) {
+		zds->ddict = ddict;
+	}
+	return zds;
+}
+
+size_t ZSTD_freeDStream(ZSTD_DStream *zds)
+{
+	if (zds == NULL)
+		return 0; /* support free on null */
+	{
+		ZSTD_customMem const cMem = zds->customMem;
+		ZSTD_freeDCtx(zds->dctx);
+		zds->dctx = NULL;
+		ZSTD_freeDDict(zds->ddictLocal);
+		zds->ddictLocal = NULL;
+		ZSTD_free(zds->inBuff, cMem);
+		zds->inBuff = NULL;
+		ZSTD_free(zds->outBuff, cMem);
+		zds->outBuff = NULL;
+		ZSTD_free(zds, cMem);
+		return 0;
+	}
+}
+
+/* *** Initialization *** */
+
+size_t ZSTD_DStreamInSize(void) { return ZSTD_BLOCKSIZE_ABSOLUTEMAX + ZSTD_blockHeaderSize; }
+size_t ZSTD_DStreamOutSize(void) { return ZSTD_BLOCKSIZE_ABSOLUTEMAX; }
+
+size_t ZSTD_resetDStream(ZSTD_DStream *zds)
+{
+	zds->stage = zdss_loadHeader;
+	zds->lhSize = zds->inPos = zds->outStart = zds->outEnd = 0;
+	zds->legacyVersion = 0;
+	zds->hostageByte = 0;
+	return ZSTD_frameHeaderSize_prefix;
+}
+
+/* *****   Decompression   ***** */
+
+ZSTD_STATIC size_t ZSTD_limitCopy(void *dst, size_t dstCapacity, const void *src, size_t srcSize)
+{
+	size_t const length = MIN(dstCapacity, srcSize);
+	memcpy(dst, src, length);
+	return length;
+}
+
+size_t ZSTD_decompressStream(ZSTD_DStream *zds, ZSTD_outBuffer *output, ZSTD_inBuffer *input)
+{
+	const char *const istart = (const char *)(input->src) + input->pos;
+	const char *const iend = (const char *)(input->src) + input->size;
+	const char *ip = istart;
+	char *const ostart = (char *)(output->dst) + output->pos;
+	char *const oend = (char *)(output->dst) + output->size;
+	char *op = ostart;
+	U32 someMoreWork = 1;
+
+	while (someMoreWork) {
+		switch (zds->stage) {
+		case zdss_init:
+			ZSTD_resetDStream(zds); /* transparent reset on starting decoding a new frame */
+						/* fall-through */
+
+		case zdss_loadHeader: {
+			size_t const hSize = ZSTD_getFrameParams(&zds->fParams, zds->headerBuffer, zds->lhSize);
+			if (ZSTD_isError(hSize))
+				return hSize;
+			if (hSize != 0) {				   /* need more input */
+				size_t const toLoad = hSize - zds->lhSize; /* if hSize!=0, hSize > zds->lhSize */
+				if (toLoad > (size_t)(iend - ip)) {	/* not enough input to load full header */
+					memcpy(zds->headerBuffer + zds->lhSize, ip, iend - ip);
+					zds->lhSize += iend - ip;
+					input->pos = input->size;
+					return (MAX(ZSTD_frameHeaderSize_min, hSize) - zds->lhSize) +
+					       ZSTD_blockHeaderSize; /* remaining header bytes + next block header */
+				}
+				memcpy(zds->headerBuffer + zds->lhSize, ip, toLoad);
+				zds->lhSize = hSize;
+				ip += toLoad;
+				break;
+			}
+
+			/* check for single-pass mode opportunity */
+			if (zds->fParams.frameContentSize && zds->fParams.windowSize /* skippable frame if == 0 */
+			    && (U64)(size_t)(oend - op) >= zds->fParams.frameContentSize) {
+				size_t const cSize = ZSTD_findFrameCompressedSize(istart, iend - istart);
+				if (cSize <= (size_t)(iend - istart)) {
+					size_t const decompressedSize = ZSTD_decompress_usingDDict(zds->dctx, op, oend - op, istart, cSize, zds->ddict);
+					if (ZSTD_isError(decompressedSize))
+						return decompressedSize;
+					ip = istart + cSize;
+					op += decompressedSize;
+					zds->dctx->expected = 0;
+					zds->stage = zdss_init;
+					someMoreWork = 0;
+					break;
+				}
+			}
+
+			/* Consume header */
+			ZSTD_refDDict(zds->dctx, zds->ddict);
+			{
+				size_t const h1Size = ZSTD_nextSrcSizeToDecompress(zds->dctx); /* == ZSTD_frameHeaderSize_prefix */
+				CHECK_F(ZSTD_decompressContinue(zds->dctx, NULL, 0, zds->headerBuffer, h1Size));
+				{
+					size_t const h2Size = ZSTD_nextSrcSizeToDecompress(zds->dctx);
+					CHECK_F(ZSTD_decompressContinue(zds->dctx, NULL, 0, zds->headerBuffer + h1Size, h2Size));
+				}
+			}
+
+			zds->fParams.windowSize = MAX(zds->fParams.windowSize, 1U << ZSTD_WINDOWLOG_ABSOLUTEMIN);
+			if (zds->fParams.windowSize > zds->maxWindowSize)
+				return ERROR(frameParameter_windowTooLarge);
+
+			/* Buffers are preallocated, but double check */
+			{
+				size_t const blockSize = MIN(zds->maxWindowSize, ZSTD_BLOCKSIZE_ABSOLUTEMAX);
+				size_t const neededOutSize = zds->maxWindowSize + blockSize + WILDCOPY_OVERLENGTH * 2;
+				if (zds->inBuffSize < blockSize) {
+					return ERROR(GENERIC);
+				}
+				if (zds->outBuffSize < neededOutSize) {
+					return ERROR(GENERIC);
+				}
+				zds->blockSize = blockSize;
+			}
+			zds->stage = zdss_read;
+		}
+		/* pass-through */
+
+		case zdss_read: {
+			size_t const neededInSize = ZSTD_nextSrcSizeToDecompress(zds->dctx);
+			if (neededInSize == 0) { /* end of frame */
+				zds->stage = zdss_init;
+				someMoreWork = 0;
+				break;
+			}
+			if ((size_t)(iend - ip) >= neededInSize) { /* decode directly from src */
+				const int isSkipFrame = ZSTD_isSkipFrame(zds->dctx);
+				size_t const decodedSize = ZSTD_decompressContinue(zds->dctx, zds->outBuff + zds->outStart,
+										   (isSkipFrame ? 0 : zds->outBuffSize - zds->outStart), ip, neededInSize);
+				if (ZSTD_isError(decodedSize))
+					return decodedSize;
+				ip += neededInSize;
+				if (!decodedSize && !isSkipFrame)
+					break; /* this was just a header */
+				zds->outEnd = zds->outStart + decodedSize;
+				zds->stage = zdss_flush;
+				break;
+			}
+			if (ip == iend) {
+				someMoreWork = 0;
+				break;
+			} /* no more input */
+			zds->stage = zdss_load;
+			/* pass-through */
+		}
+
+		case zdss_load: {
+			size_t const neededInSize = ZSTD_nextSrcSizeToDecompress(zds->dctx);
+			size_t const toLoad = neededInSize - zds->inPos; /* should always be <= remaining space within inBuff */
+			size_t loadedSize;
+			if (toLoad > zds->inBuffSize - zds->inPos)
+				return ERROR(corruption_detected); /* should never happen */
+			loadedSize = ZSTD_limitCopy(zds->inBuff + zds->inPos, toLoad, ip, iend - ip);
+			ip += loadedSize;
+			zds->inPos += loadedSize;
+			if (loadedSize < toLoad) {
+				someMoreWork = 0;
+				break;
+			} /* not enough input, wait for more */
+
+			/* decode loaded input */
+			{
+				const int isSkipFrame = ZSTD_isSkipFrame(zds->dctx);
+				size_t const decodedSize = ZSTD_decompressContinue(zds->dctx, zds->outBuff + zds->outStart, zds->outBuffSize - zds->outStart,
+										   zds->inBuff, neededInSize);
+				if (ZSTD_isError(decodedSize))
+					return decodedSize;
+				zds->inPos = 0; /* input is consumed */
+				if (!decodedSize && !isSkipFrame) {
+					zds->stage = zdss_read;
+					break;
+				} /* this was just a header */
+				zds->outEnd = zds->outStart + decodedSize;
+				zds->stage = zdss_flush;
+				/* pass-through */
+			}
+		}
+
+		case zdss_flush: {
+			size_t const toFlushSize = zds->outEnd - zds->outStart;
+			size_t const flushedSize = ZSTD_limitCopy(op, oend - op, zds->outBuff + zds->outStart, toFlushSize);
+			op += flushedSize;
+			zds->outStart += flushedSize;
+			if (flushedSize == toFlushSize) { /* flush completed */
+				zds->stage = zdss_read;
+				if (zds->outStart + zds->blockSize > zds->outBuffSize)
+					zds->outStart = zds->outEnd = 0;
+				break;
+			}
+			/* cannot complete flush */
+			someMoreWork = 0;
+			break;
+		}
+		default:
+			return ERROR(GENERIC); /* impossible */
+		}
+	}
+
+	/* result */
+	input->pos += (size_t)(ip - istart);
+	output->pos += (size_t)(op - ostart);
+	{
+		size_t nextSrcSizeHint = ZSTD_nextSrcSizeToDecompress(zds->dctx);
+		if (!nextSrcSizeHint) {			    /* frame fully decoded */
+			if (zds->outEnd == zds->outStart) { /* output fully flushed */
+				if (zds->hostageByte) {
+					if (input->pos >= input->size) {
+						zds->stage = zdss_read;
+						return 1;
+					}	     /* can't release hostage (not present) */
+					input->pos++; /* release hostage */
+				}
+				return 0;
+			}
+			if (!zds->hostageByte) { /* output not fully flushed; keep last byte as hostage; will be released when all output is flushed */
+				input->pos--;    /* note : pos > 0, otherwise, impossible to finish reading last block */
+				zds->hostageByte = 1;
+			}
+			return 1;
+		}
+		nextSrcSizeHint += ZSTD_blockHeaderSize * (ZSTD_nextInputType(zds->dctx) == ZSTDnit_block); /* preload header of next block */
+		if (zds->inPos > nextSrcSizeHint)
+			return ERROR(GENERIC); /* should never happen */
+		nextSrcSizeHint -= zds->inPos; /* already loaded*/
+		return nextSrcSizeHint;
+	}
+}
+
+EXPORT_SYMBOL(ZSTD_DCtxWorkspaceBound);
+EXPORT_SYMBOL(ZSTD_initDCtx);
+EXPORT_SYMBOL(ZSTD_decompressDCtx);
+EXPORT_SYMBOL(ZSTD_decompress_usingDict);
+
+EXPORT_SYMBOL(ZSTD_DDictWorkspaceBound);
+EXPORT_SYMBOL(ZSTD_initDDict);
+EXPORT_SYMBOL(ZSTD_decompress_usingDDict);
+
+EXPORT_SYMBOL(ZSTD_DStreamWorkspaceBound);
+EXPORT_SYMBOL(ZSTD_initDStream);
+EXPORT_SYMBOL(ZSTD_initDStream_usingDDict);
+EXPORT_SYMBOL(ZSTD_resetDStream);
+EXPORT_SYMBOL(ZSTD_decompressStream);
+EXPORT_SYMBOL(ZSTD_DStreamInSize);
+EXPORT_SYMBOL(ZSTD_DStreamOutSize);
+
+EXPORT_SYMBOL(ZSTD_findFrameCompressedSize);
+EXPORT_SYMBOL(ZSTD_getFrameContentSize);
+EXPORT_SYMBOL(ZSTD_findDecompressedSize);
+
+EXPORT_SYMBOL(ZSTD_isFrame);
+EXPORT_SYMBOL(ZSTD_getDictID_fromDict);
+EXPORT_SYMBOL(ZSTD_getDictID_fromDDict);
+EXPORT_SYMBOL(ZSTD_getDictID_fromFrame);
+
+EXPORT_SYMBOL(ZSTD_getFrameParams);
+EXPORT_SYMBOL(ZSTD_decompressBegin);
+EXPORT_SYMBOL(ZSTD_decompressBegin_usingDict);
+EXPORT_SYMBOL(ZSTD_copyDCtx);
+EXPORT_SYMBOL(ZSTD_nextSrcSizeToDecompress);
+EXPORT_SYMBOL(ZSTD_decompressContinue);
+EXPORT_SYMBOL(ZSTD_nextInputType);
+
+EXPORT_SYMBOL(ZSTD_decompressBlock);
+EXPORT_SYMBOL(ZSTD_insertBlock);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_DESCRIPTION("Zstd Decompressor");
diff --git a/lib/zstd/entropy_common.c b/lib/zstd/entropy_common.c
new file mode 100644
index 000000000000..2b0a643c32c4
--- /dev/null
+++ b/lib/zstd/entropy_common.c
@@ -0,0 +1,243 @@
+/*
+ * Common functions of New Generation Entropy library
+ * Copyright (C) 2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+
+/* *************************************
+*  Dependencies
+***************************************/
+#include "error_private.h" /* ERR_*, ERROR */
+#include "fse.h"
+#include "huf.h"
+#include "mem.h"
+
+/*===   Version   ===*/
+unsigned FSE_versionNumber(void) { return FSE_VERSION_NUMBER; }
+
+/*===   Error Management   ===*/
+unsigned FSE_isError(size_t code) { return ERR_isError(code); }
+
+unsigned HUF_isError(size_t code) { return ERR_isError(code); }
+
+/*-**************************************************************
+*  FSE NCount encoding-decoding
+****************************************************************/
+size_t FSE_readNCount(short *normalizedCounter, unsigned *maxSVPtr, unsigned *tableLogPtr, const void *headerBuffer, size_t hbSize)
+{
+	const BYTE *const istart = (const BYTE *)headerBuffer;
+	const BYTE *const iend = istart + hbSize;
+	const BYTE *ip = istart;
+	int nbBits;
+	int remaining;
+	int threshold;
+	U32 bitStream;
+	int bitCount;
+	unsigned charnum = 0;
+	int previous0 = 0;
+
+	if (hbSize < 4)
+		return ERROR(srcSize_wrong);
+	bitStream = ZSTD_readLE32(ip);
+	nbBits = (bitStream & 0xF) + FSE_MIN_TABLELOG; /* extract tableLog */
+	if (nbBits > FSE_TABLELOG_ABSOLUTE_MAX)
+		return ERROR(tableLog_tooLarge);
+	bitStream >>= 4;
+	bitCount = 4;
+	*tableLogPtr = nbBits;
+	remaining = (1 << nbBits) + 1;
+	threshold = 1 << nbBits;
+	nbBits++;
+
+	while ((remaining > 1) & (charnum <= *maxSVPtr)) {
+		if (previous0) {
+			unsigned n0 = charnum;
+			while ((bitStream & 0xFFFF) == 0xFFFF) {
+				n0 += 24;
+				if (ip < iend - 5) {
+					ip += 2;
+					bitStream = ZSTD_readLE32(ip) >> bitCount;
+				} else {
+					bitStream >>= 16;
+					bitCount += 16;
+				}
+			}
+			while ((bitStream & 3) == 3) {
+				n0 += 3;
+				bitStream >>= 2;
+				bitCount += 2;
+			}
+			n0 += bitStream & 3;
+			bitCount += 2;
+			if (n0 > *maxSVPtr)
+				return ERROR(maxSymbolValue_tooSmall);
+			while (charnum < n0)
+				normalizedCounter[charnum++] = 0;
+			if ((ip <= iend - 7) || (ip + (bitCount >> 3) <= iend - 4)) {
+				ip += bitCount >> 3;
+				bitCount &= 7;
+				bitStream = ZSTD_readLE32(ip) >> bitCount;
+			} else {
+				bitStream >>= 2;
+			}
+		}
+		{
+			int const max = (2 * threshold - 1) - remaining;
+			int count;
+
+			if ((bitStream & (threshold - 1)) < (U32)max) {
+				count = bitStream & (threshold - 1);
+				bitCount += nbBits - 1;
+			} else {
+				count = bitStream & (2 * threshold - 1);
+				if (count >= threshold)
+					count -= max;
+				bitCount += nbBits;
+			}
+
+			count--;				 /* extra accuracy */
+			remaining -= count < 0 ? -count : count; /* -1 means +1 */
+			normalizedCounter[charnum++] = (short)count;
+			previous0 = !count;
+			while (remaining < threshold) {
+				nbBits--;
+				threshold >>= 1;
+			}
+
+			if ((ip <= iend - 7) || (ip + (bitCount >> 3) <= iend - 4)) {
+				ip += bitCount >> 3;
+				bitCount &= 7;
+			} else {
+				bitCount -= (int)(8 * (iend - 4 - ip));
+				ip = iend - 4;
+			}
+			bitStream = ZSTD_readLE32(ip) >> (bitCount & 31);
+		}
+	} /* while ((remaining>1) & (charnum<=*maxSVPtr)) */
+	if (remaining != 1)
+		return ERROR(corruption_detected);
+	if (bitCount > 32)
+		return ERROR(corruption_detected);
+	*maxSVPtr = charnum - 1;
+
+	ip += (bitCount + 7) >> 3;
+	return ip - istart;
+}
+
+/*! HUF_readStats() :
+	Read compact Huffman tree, saved by HUF_writeCTable().
+	`huffWeight` is destination buffer.
+	`rankStats` is assumed to be a table of at least HUF_TABLELOG_MAX U32.
+	@return : size read from `src` , or an error Code .
+	Note : Needed by HUF_readCTable() and HUF_readDTableX?() .
+*/
+size_t HUF_readStats_wksp(BYTE *huffWeight, size_t hwSize, U32 *rankStats, U32 *nbSymbolsPtr, U32 *tableLogPtr, const void *src, size_t srcSize, void *workspace, size_t workspaceSize)
+{
+	U32 weightTotal;
+	const BYTE *ip = (const BYTE *)src;
+	size_t iSize;
+	size_t oSize;
+
+	if (!srcSize)
+		return ERROR(srcSize_wrong);
+	iSize = ip[0];
+	/* memset(huffWeight, 0, hwSize);   */ /* is not necessary, even though some analyzer complain ... */
+
+	if (iSize >= 128) { /* special header */
+		oSize = iSize - 127;
+		iSize = ((oSize + 1) / 2);
+		if (iSize + 1 > srcSize)
+			return ERROR(srcSize_wrong);
+		if (oSize >= hwSize)
+			return ERROR(corruption_detected);
+		ip += 1;
+		{
+			U32 n;
+			for (n = 0; n < oSize; n += 2) {
+				huffWeight[n] = ip[n / 2] >> 4;
+				huffWeight[n + 1] = ip[n / 2] & 15;
+			}
+		}
+	} else {						 /* header compressed with FSE (normal case) */
+		if (iSize + 1 > srcSize)
+			return ERROR(srcSize_wrong);
+		oSize = FSE_decompress_wksp(huffWeight, hwSize - 1, ip + 1, iSize, 6, workspace, workspaceSize); /* max (hwSize-1) values decoded, as last one is implied */
+		if (FSE_isError(oSize))
+			return oSize;
+	}
+
+	/* collect weight stats */
+	memset(rankStats, 0, (HUF_TABLELOG_MAX + 1) * sizeof(U32));
+	weightTotal = 0;
+	{
+		U32 n;
+		for (n = 0; n < oSize; n++) {
+			if (huffWeight[n] >= HUF_TABLELOG_MAX)
+				return ERROR(corruption_detected);
+			rankStats[huffWeight[n]]++;
+			weightTotal += (1 << huffWeight[n]) >> 1;
+		}
+	}
+	if (weightTotal == 0)
+		return ERROR(corruption_detected);
+
+	/* get last non-null symbol weight (implied, total must be 2^n) */
+	{
+		U32 const tableLog = BIT_highbit32(weightTotal) + 1;
+		if (tableLog > HUF_TABLELOG_MAX)
+			return ERROR(corruption_detected);
+		*tableLogPtr = tableLog;
+		/* determine last weight */
+		{
+			U32 const total = 1 << tableLog;
+			U32 const rest = total - weightTotal;
+			U32 const verif = 1 << BIT_highbit32(rest);
+			U32 const lastWeight = BIT_highbit32(rest) + 1;
+			if (verif != rest)
+				return ERROR(corruption_detected); /* last value must be a clean power of 2 */
+			huffWeight[oSize] = (BYTE)lastWeight;
+			rankStats[lastWeight]++;
+		}
+	}
+
+	/* check tree construction validity */
+	if ((rankStats[1] < 2) || (rankStats[1] & 1))
+		return ERROR(corruption_detected); /* by construction : at least 2 elts of rank 1, must be even */
+
+	/* results */
+	*nbSymbolsPtr = (U32)(oSize + 1);
+	return iSize + 1;
+}
diff --git a/lib/zstd/error_private.h b/lib/zstd/error_private.h
new file mode 100644
index 000000000000..1a60b31f706c
--- /dev/null
+++ b/lib/zstd/error_private.h
@@ -0,0 +1,53 @@
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+/* Note : this module is expected to remain private, do not expose it */
+
+#ifndef ERROR_H_MODULE
+#define ERROR_H_MODULE
+
+/* ****************************************
+*  Dependencies
+******************************************/
+#include <linux/types.h> /* size_t */
+#include <linux/zstd.h>  /* enum list */
+
+/* ****************************************
+*  Compiler-specific
+******************************************/
+#define ERR_STATIC static __attribute__((unused))
+
+/*-****************************************
+*  Customization (error_public.h)
+******************************************/
+typedef ZSTD_ErrorCode ERR_enum;
+#define PREFIX(name) ZSTD_error_##name
+
+/*-****************************************
+*  Error codes handling
+******************************************/
+#define ERROR(name) ((size_t)-PREFIX(name))
+
+ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); }
+
+ERR_STATIC ERR_enum ERR_getErrorCode(size_t code)
+{
+	if (!ERR_isError(code))
+		return (ERR_enum)0;
+	return (ERR_enum)(0 - code);
+}
+
+#endif /* ERROR_H_MODULE */
diff --git a/lib/zstd/fse.h b/lib/zstd/fse.h
new file mode 100644
index 000000000000..7460ab04b191
--- /dev/null
+++ b/lib/zstd/fse.h
@@ -0,0 +1,575 @@
+/*
+ * FSE : Finite State Entropy codec
+ * Public Prototypes declaration
+ * Copyright (C) 2013-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+#ifndef FSE_H
+#define FSE_H
+
+/*-*****************************************
+*  Dependencies
+******************************************/
+#include <linux/types.h> /* size_t, ptrdiff_t */
+
+/*-*****************************************
+*  FSE_PUBLIC_API : control library symbols visibility
+******************************************/
+#define FSE_PUBLIC_API
+
+/*------   Version   ------*/
+#define FSE_VERSION_MAJOR 0
+#define FSE_VERSION_MINOR 9
+#define FSE_VERSION_RELEASE 0
+
+#define FSE_LIB_VERSION FSE_VERSION_MAJOR.FSE_VERSION_MINOR.FSE_VERSION_RELEASE
+#define FSE_QUOTE(str) #str
+#define FSE_EXPAND_AND_QUOTE(str) FSE_QUOTE(str)
+#define FSE_VERSION_STRING FSE_EXPAND_AND_QUOTE(FSE_LIB_VERSION)
+
+#define FSE_VERSION_NUMBER (FSE_VERSION_MAJOR * 100 * 100 + FSE_VERSION_MINOR * 100 + FSE_VERSION_RELEASE)
+FSE_PUBLIC_API unsigned FSE_versionNumber(void); /**< library version number; to be used when checking dll version */
+
+/*-*****************************************
+*  Tool functions
+******************************************/
+FSE_PUBLIC_API size_t FSE_compressBound(size_t size); /* maximum compressed size */
+
+/* Error Management */
+FSE_PUBLIC_API unsigned FSE_isError(size_t code); /* tells if a return value is an error code */
+
+/*-*****************************************
+*  FSE detailed API
+******************************************/
+/*!
+FSE_compress() does the following:
+1. count symbol occurrence from source[] into table count[]
+2. normalize counters so that sum(count[]) == Power_of_2 (2^tableLog)
+3. save normalized counters to memory buffer using writeNCount()
+4. build encoding table 'CTable' from normalized counters
+5. encode the data stream using encoding table 'CTable'
+
+FSE_decompress() does the following:
+1. read normalized counters with readNCount()
+2. build decoding table 'DTable' from normalized counters
+3. decode the data stream using decoding table 'DTable'
+
+The following API allows targeting specific sub-functions for advanced tasks.
+For example, it's possible to compress several blocks using the same 'CTable',
+or to save and provide normalized distribution using external method.
+*/
+
+/* *** COMPRESSION *** */
+/*! FSE_optimalTableLog():
+	dynamically downsize 'tableLog' when conditions are met.
+	It saves CPU time, by using smaller tables, while preserving or even improving compression ratio.
+	@return : recommended tableLog (necessarily <= 'maxTableLog') */
+FSE_PUBLIC_API unsigned FSE_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue);
+
+/*! FSE_normalizeCount():
+	normalize counts so that sum(count[]) == Power_of_2 (2^tableLog)
+	'normalizedCounter' is a table of short, of minimum size (maxSymbolValue+1).
+	@return : tableLog,
+			  or an errorCode, which can be tested using FSE_isError() */
+FSE_PUBLIC_API size_t FSE_normalizeCount(short *normalizedCounter, unsigned tableLog, const unsigned *count, size_t srcSize, unsigned maxSymbolValue);
+
+/*! FSE_NCountWriteBound():
+	Provides the maximum possible size of an FSE normalized table, given 'maxSymbolValue' and 'tableLog'.
+	Typically useful for allocation purpose. */
+FSE_PUBLIC_API size_t FSE_NCountWriteBound(unsigned maxSymbolValue, unsigned tableLog);
+
+/*! FSE_writeNCount():
+	Compactly save 'normalizedCounter' into 'buffer'.
+	@return : size of the compressed table,
+			  or an errorCode, which can be tested using FSE_isError(). */
+FSE_PUBLIC_API size_t FSE_writeNCount(void *buffer, size_t bufferSize, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog);
+
+/*! Constructor and Destructor of FSE_CTable.
+	Note that FSE_CTable size depends on 'tableLog' and 'maxSymbolValue' */
+typedef unsigned FSE_CTable; /* don't allocate that. It's only meant to be more restrictive than void* */
+
+/*! FSE_compress_usingCTable():
+	Compress `src` using `ct` into `dst` which must be already allocated.
+	@return : size of compressed data (<= `dstCapacity`),
+			  or 0 if compressed data could not fit into `dst`,
+			  or an errorCode, which can be tested using FSE_isError() */
+FSE_PUBLIC_API size_t FSE_compress_usingCTable(void *dst, size_t dstCapacity, const void *src, size_t srcSize, const FSE_CTable *ct);
+
+/*!
+Tutorial :
+----------
+The first step is to count all symbols. FSE_count() does this job very fast.
+Result will be saved into 'count', a table of unsigned int, which must be already allocated, and have 'maxSymbolValuePtr[0]+1' cells.
+'src' is a table of bytes of size 'srcSize'. All values within 'src' MUST be <= maxSymbolValuePtr[0]
+maxSymbolValuePtr[0] will be updated, with its real value (necessarily <= original value)
+FSE_count() will return the number of occurrence of the most frequent symbol.
+This can be used to know if there is a single symbol within 'src', and to quickly evaluate its compressibility.
+If there is an error, the function will return an ErrorCode (which can be tested using FSE_isError()).
+
+The next step is to normalize the frequencies.
+FSE_normalizeCount() will ensure that sum of frequencies is == 2 ^'tableLog'.
+It also guarantees a minimum of 1 to any Symbol with frequency >= 1.
+You can use 'tableLog'==0 to mean "use default tableLog value".
+If you are unsure of which tableLog value to use, you can ask FSE_optimalTableLog(),
+which will provide the optimal valid tableLog given sourceSize, maxSymbolValue, and a user-defined maximum (0 means "default").
+
+The result of FSE_normalizeCount() will be saved into a table,
+called 'normalizedCounter', which is a table of signed short.
+'normalizedCounter' must be already allocated, and have at least 'maxSymbolValue+1' cells.
+The return value is tableLog if everything proceeded as expected.
+It is 0 if there is a single symbol within distribution.
+If there is an error (ex: invalid tableLog value), the function will return an ErrorCode (which can be tested using FSE_isError()).
+
+'normalizedCounter' can be saved in a compact manner to a memory area using FSE_writeNCount().
+'buffer' must be already allocated.
+For guaranteed success, buffer size must be at least FSE_headerBound().
+The result of the function is the number of bytes written into 'buffer'.
+If there is an error, the function will return an ErrorCode (which can be tested using FSE_isError(); ex : buffer size too small).
+
+'normalizedCounter' can then be used to create the compression table 'CTable'.
+The space required by 'CTable' must be already allocated, using FSE_createCTable().
+You can then use FSE_buildCTable() to fill 'CTable'.
+If there is an error, both functions will return an ErrorCode (which can be tested using FSE_isError()).
+
+'CTable' can then be used to compress 'src', with FSE_compress_usingCTable().
+Similar to FSE_count(), the convention is that 'src' is assumed to be a table of char of size 'srcSize'
+The function returns the size of compressed data (without header), necessarily <= `dstCapacity`.
+If it returns '0', compressed data could not fit into 'dst'.
+If there is an error, the function will return an ErrorCode (which can be tested using FSE_isError()).
+*/
+
+/* *** DECOMPRESSION *** */
+
+/*! FSE_readNCount():
+	Read compactly saved 'normalizedCounter' from 'rBuffer'.
+	@return : size read from 'rBuffer',
+			  or an errorCode, which can be tested using FSE_isError().
+			  maxSymbolValuePtr[0] and tableLogPtr[0] will also be updated with their respective values */
+FSE_PUBLIC_API size_t FSE_readNCount(short *normalizedCounter, unsigned *maxSymbolValuePtr, unsigned *tableLogPtr, const void *rBuffer, size_t rBuffSize);
+
+/*! Constructor and Destructor of FSE_DTable.
+	Note that its size depends on 'tableLog' */
+typedef unsigned FSE_DTable; /* don't allocate that. It's just a way to be more restrictive than void* */
+
+/*! FSE_buildDTable():
+	Builds 'dt', which must be already allocated, using FSE_createDTable().
+	return : 0, or an errorCode, which can be tested using FSE_isError() */
+FSE_PUBLIC_API size_t FSE_buildDTable_wksp(FSE_DTable *dt, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog, void *workspace, size_t workspaceSize);
+
+/*! FSE_decompress_usingDTable():
+	Decompress compressed source `cSrc` of size `cSrcSize` using `dt`
+	into `dst` which must be already allocated.
+	@return : size of regenerated data (necessarily <= `dstCapacity`),
+			  or an errorCode, which can be tested using FSE_isError() */
+FSE_PUBLIC_API size_t FSE_decompress_usingDTable(void *dst, size_t dstCapacity, const void *cSrc, size_t cSrcSize, const FSE_DTable *dt);
+
+/*!
+Tutorial :
+----------
+(Note : these functions only decompress FSE-compressed blocks.
+ If block is uncompressed, use memcpy() instead
+ If block is a single repeated byte, use memset() instead )
+
+The first step is to obtain the normalized frequencies of symbols.
+This can be performed by FSE_readNCount() if it was saved using FSE_writeNCount().
+'normalizedCounter' must be already allocated, and have at least 'maxSymbolValuePtr[0]+1' cells of signed short.
+In practice, that means it's necessary to know 'maxSymbolValue' beforehand,
+or size the table to handle worst case situations (typically 256).
+FSE_readNCount() will provide 'tableLog' and 'maxSymbolValue'.
+The result of FSE_readNCount() is the number of bytes read from 'rBuffer'.
+Note that 'rBufferSize' must be at least 4 bytes, even if useful information is less than that.
+If there is an error, the function will return an error code, which can be tested using FSE_isError().
+
+The next step is to build the decompression tables 'FSE_DTable' from 'normalizedCounter'.
+This is performed by the function FSE_buildDTable().
+The space required by 'FSE_DTable' must be already allocated using FSE_createDTable().
+If there is an error, the function will return an error code, which can be tested using FSE_isError().
+
+`FSE_DTable` can then be used to decompress `cSrc`, with FSE_decompress_usingDTable().
+`cSrcSize` must be strictly correct, otherwise decompression will fail.
+FSE_decompress_usingDTable() result will tell how many bytes were regenerated (<=`dstCapacity`).
+If there is an error, the function will return an error code, which can be tested using FSE_isError(). (ex: dst buffer too small)
+*/
+
+/* *** Dependency *** */
+#include "bitstream.h"
+
+/* *****************************************
+*  Static allocation
+*******************************************/
+/* FSE buffer bounds */
+#define FSE_NCOUNTBOUND 512
+#define FSE_BLOCKBOUND(size) (size + (size >> 7))
+#define FSE_COMPRESSBOUND(size) (FSE_NCOUNTBOUND + FSE_BLOCKBOUND(size)) /* Macro version, useful for static allocation */
+
+/* It is possible to statically allocate FSE CTable/DTable as a table of FSE_CTable/FSE_DTable using below macros */
+#define FSE_CTABLE_SIZE_U32(maxTableLog, maxSymbolValue) (1 + (1 << (maxTableLog - 1)) + ((maxSymbolValue + 1) * 2))
+#define FSE_DTABLE_SIZE_U32(maxTableLog) (1 + (1 << maxTableLog))
+
+/* *****************************************
+*  FSE advanced API
+*******************************************/
+/* FSE_count_wksp() :
+ * Same as FSE_count(), but using an externally provided scratch buffer.
+ * `workSpace` size must be table of >= `1024` unsigned
+ */
+size_t FSE_count_wksp(unsigned *count, unsigned *maxSymbolValuePtr, const void *source, size_t sourceSize, unsigned *workSpace);
+
+/* FSE_countFast_wksp() :
+ * Same as FSE_countFast(), but using an externally provided scratch buffer.
+ * `workSpace` must be a table of minimum `1024` unsigned
+ */
+size_t FSE_countFast_wksp(unsigned *count, unsigned *maxSymbolValuePtr, const void *src, size_t srcSize, unsigned *workSpace);
+
+/*! FSE_count_simple
+ * Same as FSE_countFast(), but does not use any additional memory (not even on stack).
+ * This function is unsafe, and will segfault if any value within `src` is `> *maxSymbolValuePtr` (presuming it's also the size of `count`).
+*/
+size_t FSE_count_simple(unsigned *count, unsigned *maxSymbolValuePtr, const void *src, size_t srcSize);
+
+unsigned FSE_optimalTableLog_internal(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue, unsigned minus);
+/**< same as FSE_optimalTableLog(), which used `minus==2` */
+
+size_t FSE_buildCTable_raw(FSE_CTable *ct, unsigned nbBits);
+/**< build a fake FSE_CTable, designed for a flat distribution, where each symbol uses nbBits */
+
+size_t FSE_buildCTable_rle(FSE_CTable *ct, unsigned char symbolValue);
+/**< build a fake FSE_CTable, designed to compress always the same symbolValue */
+
+/* FSE_buildCTable_wksp() :
+ * Same as FSE_buildCTable(), but using an externally allocated scratch buffer (`workSpace`).
+ * `wkspSize` must be >= `(1<<tableLog)`.
+ */
+size_t FSE_buildCTable_wksp(FSE_CTable *ct, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog, void *workSpace, size_t wkspSize);
+
+size_t FSE_buildDTable_raw(FSE_DTable *dt, unsigned nbBits);
+/**< build a fake FSE_DTable, designed to read a flat distribution where each symbol uses nbBits */
+
+size_t FSE_buildDTable_rle(FSE_DTable *dt, unsigned char symbolValue);
+/**< build a fake FSE_DTable, designed to always generate the same symbolValue */
+
+size_t FSE_decompress_wksp(void *dst, size_t dstCapacity, const void *cSrc, size_t cSrcSize, unsigned maxLog, void *workspace, size_t workspaceSize);
+/**< same as FSE_decompress(), using an externally allocated `workSpace` produced with `FSE_DTABLE_SIZE_U32(maxLog)` */
+
+/* *****************************************
+*  FSE symbol compression API
+*******************************************/
+/*!
+   This API consists of small unitary functions, which highly benefit from being inlined.
+   Hence their body are included in next section.
+*/
+typedef struct {
+	ptrdiff_t value;
+	const void *stateTable;
+	const void *symbolTT;
+	unsigned stateLog;
+} FSE_CState_t;
+
+static void FSE_initCState(FSE_CState_t *CStatePtr, const FSE_CTable *ct);
+
+static void FSE_encodeSymbol(BIT_CStream_t *bitC, FSE_CState_t *CStatePtr, unsigned symbol);
+
+static void FSE_flushCState(BIT_CStream_t *bitC, const FSE_CState_t *CStatePtr);
+
+/**<
+These functions are inner components of FSE_compress_usingCTable().
+They allow the creation of custom streams, mixing multiple tables and bit sources.
+
+A key property to keep in mind is that encoding and decoding are done **in reverse direction**.
+So the first symbol you will encode is the last you will decode, like a LIFO stack.
+
+You will need a few variables to track your CStream. They are :
+
+FSE_CTable    ct;         // Provided by FSE_buildCTable()
+BIT_CStream_t bitStream;  // bitStream tracking structure
+FSE_CState_t  state;      // State tracking structure (can have several)
+
+
+The first thing to do is to init bitStream and state.
+	size_t errorCode = BIT_initCStream(&bitStream, dstBuffer, maxDstSize);
+	FSE_initCState(&state, ct);
+
+Note that BIT_initCStream() can produce an error code, so its result should be tested, using FSE_isError();
+You can then encode your input data, byte after byte.
+FSE_encodeSymbol() outputs a maximum of 'tableLog' bits at a time.
+Remember decoding will be done in reverse direction.
+	FSE_encodeByte(&bitStream, &state, symbol);
+
+At any time, you can also add any bit sequence.
+Note : maximum allowed nbBits is 25, for compatibility with 32-bits decoders
+	BIT_addBits(&bitStream, bitField, nbBits);
+
+The above methods don't commit data to memory, they just store it into local register, for speed.
+Local register size is 64-bits on 64-bits systems, 32-bits on 32-bits systems (size_t).
+Writing data to memory is a manual operation, performed by the flushBits function.
+	BIT_flushBits(&bitStream);
+
+Your last FSE encoding operation shall be to flush your last state value(s).
+	FSE_flushState(&bitStream, &state);
+
+Finally, you must close the bitStream.
+The function returns the size of CStream in bytes.
+If data couldn't fit into dstBuffer, it will return a 0 ( == not compressible)
+If there is an error, it returns an errorCode (which can be tested using FSE_isError()).
+	size_t size = BIT_closeCStream(&bitStream);
+*/
+
+/* *****************************************
+*  FSE symbol decompression API
+*******************************************/
+typedef struct {
+	size_t state;
+	const void *table; /* precise table may vary, depending on U16 */
+} FSE_DState_t;
+
+static void FSE_initDState(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD, const FSE_DTable *dt);
+
+static unsigned char FSE_decodeSymbol(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD);
+
+static unsigned FSE_endOfDState(const FSE_DState_t *DStatePtr);
+
+/**<
+Let's now decompose FSE_decompress_usingDTable() into its unitary components.
+You will decode FSE-encoded symbols from the bitStream,
+and also any other bitFields you put in, **in reverse order**.
+
+You will need a few variables to track your bitStream. They are :
+
+BIT_DStream_t DStream;    // Stream context
+FSE_DState_t  DState;     // State context. Multiple ones are possible
+FSE_DTable*   DTablePtr;  // Decoding table, provided by FSE_buildDTable()
+
+The first thing to do is to init the bitStream.
+	errorCode = BIT_initDStream(&DStream, srcBuffer, srcSize);
+
+You should then retrieve your initial state(s)
+(in reverse flushing order if you have several ones) :
+	errorCode = FSE_initDState(&DState, &DStream, DTablePtr);
+
+You can then decode your data, symbol after symbol.
+For information the maximum number of bits read by FSE_decodeSymbol() is 'tableLog'.
+Keep in mind that symbols are decoded in reverse order, like a LIFO stack (last in, first out).
+	unsigned char symbol = FSE_decodeSymbol(&DState, &DStream);
+
+You can retrieve any bitfield you eventually stored into the bitStream (in reverse order)
+Note : maximum allowed nbBits is 25, for 32-bits compatibility
+	size_t bitField = BIT_readBits(&DStream, nbBits);
+
+All above operations only read from local register (which size depends on size_t).
+Refueling the register from memory is manually performed by the reload method.
+	endSignal = FSE_reloadDStream(&DStream);
+
+BIT_reloadDStream() result tells if there is still some more data to read from DStream.
+BIT_DStream_unfinished : there is still some data left into the DStream.
+BIT_DStream_endOfBuffer : Dstream reached end of buffer. Its container may no longer be completely filled.
+BIT_DStream_completed : Dstream reached its exact end, corresponding in general to decompression completed.
+BIT_DStream_tooFar : Dstream went too far. Decompression result is corrupted.
+
+When reaching end of buffer (BIT_DStream_endOfBuffer), progress slowly, notably if you decode multiple symbols per loop,
+to properly detect the exact end of stream.
+After each decoded symbol, check if DStream is fully consumed using this simple test :
+	BIT_reloadDStream(&DStream) >= BIT_DStream_completed
+
+When it's done, verify decompression is fully completed, by checking both DStream and the relevant states.
+Checking if DStream has reached its end is performed by :
+	BIT_endOfDStream(&DStream);
+Check also the states. There might be some symbols left there, if some high probability ones (>50%) are possible.
+	FSE_endOfDState(&DState);
+*/
+
+/* *****************************************
+*  FSE unsafe API
+*******************************************/
+static unsigned char FSE_decodeSymbolFast(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD);
+/* faster, but works only if nbBits is always >= 1 (otherwise, result will be corrupted) */
+
+/* *****************************************
+*  Implementation of inlined functions
+*******************************************/
+typedef struct {
+	int deltaFindState;
+	U32 deltaNbBits;
+} FSE_symbolCompressionTransform; /* total 8 bytes */
+
+ZSTD_STATIC void FSE_initCState(FSE_CState_t *statePtr, const FSE_CTable *ct)
+{
+	const void *ptr = ct;
+	const U16 *u16ptr = (const U16 *)ptr;
+	const U32 tableLog = ZSTD_read16(ptr);
+	statePtr->value = (ptrdiff_t)1 << tableLog;
+	statePtr->stateTable = u16ptr + 2;
+	statePtr->symbolTT = ((const U32 *)ct + 1 + (tableLog ? (1 << (tableLog - 1)) : 1));
+	statePtr->stateLog = tableLog;
+}
+
+/*! FSE_initCState2() :
+*   Same as FSE_initCState(), but the first symbol to include (which will be the last to be read)
+*   uses the smallest state value possible, saving the cost of this symbol */
+ZSTD_STATIC void FSE_initCState2(FSE_CState_t *statePtr, const FSE_CTable *ct, U32 symbol)
+{
+	FSE_initCState(statePtr, ct);
+	{
+		const FSE_symbolCompressionTransform symbolTT = ((const FSE_symbolCompressionTransform *)(statePtr->symbolTT))[symbol];
+		const U16 *stateTable = (const U16 *)(statePtr->stateTable);
+		U32 nbBitsOut = (U32)((symbolTT.deltaNbBits + (1 << 15)) >> 16);
+		statePtr->value = (nbBitsOut << 16) - symbolTT.deltaNbBits;
+		statePtr->value = stateTable[(statePtr->value >> nbBitsOut) + symbolTT.deltaFindState];
+	}
+}
+
+ZSTD_STATIC void FSE_encodeSymbol(BIT_CStream_t *bitC, FSE_CState_t *statePtr, U32 symbol)
+{
+	const FSE_symbolCompressionTransform symbolTT = ((const FSE_symbolCompressionTransform *)(statePtr->symbolTT))[symbol];
+	const U16 *const stateTable = (const U16 *)(statePtr->stateTable);
+	U32 nbBitsOut = (U32)((statePtr->value + symbolTT.deltaNbBits) >> 16);
+	BIT_addBits(bitC, statePtr->value, nbBitsOut);
+	statePtr->value = stateTable[(statePtr->value >> nbBitsOut) + symbolTT.deltaFindState];
+}
+
+ZSTD_STATIC void FSE_flushCState(BIT_CStream_t *bitC, const FSE_CState_t *statePtr)
+{
+	BIT_addBits(bitC, statePtr->value, statePtr->stateLog);
+	BIT_flushBits(bitC);
+}
+
+/* ======    Decompression    ====== */
+
+typedef struct {
+	U16 tableLog;
+	U16 fastMode;
+} FSE_DTableHeader; /* sizeof U32 */
+
+typedef struct {
+	unsigned short newState;
+	unsigned char symbol;
+	unsigned char nbBits;
+} FSE_decode_t; /* size == U32 */
+
+ZSTD_STATIC void FSE_initDState(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD, const FSE_DTable *dt)
+{
+	const void *ptr = dt;
+	const FSE_DTableHeader *const DTableH = (const FSE_DTableHeader *)ptr;
+	DStatePtr->state = BIT_readBits(bitD, DTableH->tableLog);
+	BIT_reloadDStream(bitD);
+	DStatePtr->table = dt + 1;
+}
+
+ZSTD_STATIC BYTE FSE_peekSymbol(const FSE_DState_t *DStatePtr)
+{
+	FSE_decode_t const DInfo = ((const FSE_decode_t *)(DStatePtr->table))[DStatePtr->state];
+	return DInfo.symbol;
+}
+
+ZSTD_STATIC void FSE_updateState(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD)
+{
+	FSE_decode_t const DInfo = ((const FSE_decode_t *)(DStatePtr->table))[DStatePtr->state];
+	U32 const nbBits = DInfo.nbBits;
+	size_t const lowBits = BIT_readBits(bitD, nbBits);
+	DStatePtr->state = DInfo.newState + lowBits;
+}
+
+ZSTD_STATIC BYTE FSE_decodeSymbol(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD)
+{
+	FSE_decode_t const DInfo = ((const FSE_decode_t *)(DStatePtr->table))[DStatePtr->state];
+	U32 const nbBits = DInfo.nbBits;
+	BYTE const symbol = DInfo.symbol;
+	size_t const lowBits = BIT_readBits(bitD, nbBits);
+
+	DStatePtr->state = DInfo.newState + lowBits;
+	return symbol;
+}
+
+/*! FSE_decodeSymbolFast() :
+	unsafe, only works if no symbol has a probability > 50% */
+ZSTD_STATIC BYTE FSE_decodeSymbolFast(FSE_DState_t *DStatePtr, BIT_DStream_t *bitD)
+{
+	FSE_decode_t const DInfo = ((const FSE_decode_t *)(DStatePtr->table))[DStatePtr->state];
+	U32 const nbBits = DInfo.nbBits;
+	BYTE const symbol = DInfo.symbol;
+	size_t const lowBits = BIT_readBitsFast(bitD, nbBits);
+
+	DStatePtr->state = DInfo.newState + lowBits;
+	return symbol;
+}
+
+ZSTD_STATIC unsigned FSE_endOfDState(const FSE_DState_t *DStatePtr) { return DStatePtr->state == 0; }
+
+/* **************************************************************
+*  Tuning parameters
+****************************************************************/
+/*!MEMORY_USAGE :
+*  Memory usage formula : N->2^N Bytes (examples : 10 -> 1KB; 12 -> 4KB ; 16 -> 64KB; 20 -> 1MB; etc.)
+*  Increasing memory usage improves compression ratio
+*  Reduced memory usage can improve speed, due to cache effect
+*  Recommended max value is 14, for 16KB, which nicely fits into Intel x86 L1 cache */
+#ifndef FSE_MAX_MEMORY_USAGE
+#define FSE_MAX_MEMORY_USAGE 14
+#endif
+#ifndef FSE_DEFAULT_MEMORY_USAGE
+#define FSE_DEFAULT_MEMORY_USAGE 13
+#endif
+
+/*!FSE_MAX_SYMBOL_VALUE :
+*  Maximum symbol value authorized.
+*  Required for proper stack allocation */
+#ifndef FSE_MAX_SYMBOL_VALUE
+#define FSE_MAX_SYMBOL_VALUE 255
+#endif
+
+/* **************************************************************
+*  template functions type & suffix
+****************************************************************/
+#define FSE_FUNCTION_TYPE BYTE
+#define FSE_FUNCTION_EXTENSION
+#define FSE_DECODE_TYPE FSE_decode_t
+
+/* ***************************************************************
+*  Constants
+*****************************************************************/
+#define FSE_MAX_TABLELOG (FSE_MAX_MEMORY_USAGE - 2)
+#define FSE_MAX_TABLESIZE (1U << FSE_MAX_TABLELOG)
+#define FSE_MAXTABLESIZE_MASK (FSE_MAX_TABLESIZE - 1)
+#define FSE_DEFAULT_TABLELOG (FSE_DEFAULT_MEMORY_USAGE - 2)
+#define FSE_MIN_TABLELOG 5
+
+#define FSE_TABLELOG_ABSOLUTE_MAX 15
+#if FSE_MAX_TABLELOG > FSE_TABLELOG_ABSOLUTE_MAX
+#error "FSE_MAX_TABLELOG > FSE_TABLELOG_ABSOLUTE_MAX is not supported"
+#endif
+
+#define FSE_TABLESTEP(tableSize) ((tableSize >> 1) + (tableSize >> 3) + 3)
+
+#endif /* FSE_H */
diff --git a/lib/zstd/fse_compress.c b/lib/zstd/fse_compress.c
new file mode 100644
index 000000000000..ef3d1741d532
--- /dev/null
+++ b/lib/zstd/fse_compress.c
@@ -0,0 +1,795 @@
+/*
+ * FSE : Finite State Entropy encoder
+ * Copyright (C) 2013-2015, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+
+/* **************************************************************
+*  Compiler specifics
+****************************************************************/
+#define FORCE_INLINE static __always_inline
+
+/* **************************************************************
+*  Includes
+****************************************************************/
+#include "bitstream.h"
+#include "fse.h"
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/math64.h>
+#include <linux/string.h> /* memcpy, memset */
+
+/* **************************************************************
+*  Error Management
+****************************************************************/
+#define FSE_STATIC_ASSERT(c)                                   \
+	{                                                      \
+		enum { FSE_static_assert = 1 / (int)(!!(c)) }; \
+	} /* use only *after* variable declarations */
+
+/* **************************************************************
+*  Templates
+****************************************************************/
+/*
+  designed to be included
+  for type-specific functions (template emulation in C)
+  Objective is to write these functions only once, for improved maintenance
+*/
+
+/* safety checks */
+#ifndef FSE_FUNCTION_EXTENSION
+#error "FSE_FUNCTION_EXTENSION must be defined"
+#endif
+#ifndef FSE_FUNCTION_TYPE
+#error "FSE_FUNCTION_TYPE must be defined"
+#endif
+
+/* Function names */
+#define FSE_CAT(X, Y) X##Y
+#define FSE_FUNCTION_NAME(X, Y) FSE_CAT(X, Y)
+#define FSE_TYPE_NAME(X, Y) FSE_CAT(X, Y)
+
+/* Function templates */
+
+/* FSE_buildCTable_wksp() :
+ * Same as FSE_buildCTable(), but using an externally allocated scratch buffer (`workSpace`).
+ * wkspSize should be sized to handle worst case situation, which is `1<<max_tableLog * sizeof(FSE_FUNCTION_TYPE)`
+ * workSpace must also be properly aligned with FSE_FUNCTION_TYPE requirements
+ */
+size_t FSE_buildCTable_wksp(FSE_CTable *ct, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog, void *workspace, size_t workspaceSize)
+{
+	U32 const tableSize = 1 << tableLog;
+	U32 const tableMask = tableSize - 1;
+	void *const ptr = ct;
+	U16 *const tableU16 = ((U16 *)ptr) + 2;
+	void *const FSCT = ((U32 *)ptr) + 1 /* header */ + (tableLog ? tableSize >> 1 : 1);
+	FSE_symbolCompressionTransform *const symbolTT = (FSE_symbolCompressionTransform *)(FSCT);
+	U32 const step = FSE_TABLESTEP(tableSize);
+	U32 highThreshold = tableSize - 1;
+
+	U32 *cumul;
+	FSE_FUNCTION_TYPE *tableSymbol;
+	size_t spaceUsed32 = 0;
+
+	cumul = (U32 *)workspace + spaceUsed32;
+	spaceUsed32 += FSE_MAX_SYMBOL_VALUE + 2;
+	tableSymbol = (FSE_FUNCTION_TYPE *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(sizeof(FSE_FUNCTION_TYPE) * ((size_t)1 << tableLog), sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	/* CTable header */
+	tableU16[-2] = (U16)tableLog;
+	tableU16[-1] = (U16)maxSymbolValue;
+
+	/* For explanations on how to distribute symbol values over the table :
+	*  http://fastcompression.blogspot.fr/2014/02/fse-distributing-symbol-values.html */
+
+	/* symbol start positions */
+	{
+		U32 u;
+		cumul[0] = 0;
+		for (u = 1; u <= maxSymbolValue + 1; u++) {
+			if (normalizedCounter[u - 1] == -1) { /* Low proba symbol */
+				cumul[u] = cumul[u - 1] + 1;
+				tableSymbol[highThreshold--] = (FSE_FUNCTION_TYPE)(u - 1);
+			} else {
+				cumul[u] = cumul[u - 1] + normalizedCounter[u - 1];
+			}
+		}
+		cumul[maxSymbolValue + 1] = tableSize + 1;
+	}
+
+	/* Spread symbols */
+	{
+		U32 position = 0;
+		U32 symbol;
+		for (symbol = 0; symbol <= maxSymbolValue; symbol++) {
+			int nbOccurences;
+			for (nbOccurences = 0; nbOccurences < normalizedCounter[symbol]; nbOccurences++) {
+				tableSymbol[position] = (FSE_FUNCTION_TYPE)symbol;
+				position = (position + step) & tableMask;
+				while (position > highThreshold)
+					position = (position + step) & tableMask; /* Low proba area */
+			}
+		}
+
+		if (position != 0)
+			return ERROR(GENERIC); /* Must have gone through all positions */
+	}
+
+	/* Build table */
+	{
+		U32 u;
+		for (u = 0; u < tableSize; u++) {
+			FSE_FUNCTION_TYPE s = tableSymbol[u];	/* note : static analyzer may not understand tableSymbol is properly initialized */
+			tableU16[cumul[s]++] = (U16)(tableSize + u); /* TableU16 : sorted by symbol order; gives next state value */
+		}
+	}
+
+	/* Build Symbol Transformation Table */
+	{
+		unsigned total = 0;
+		unsigned s;
+		for (s = 0; s <= maxSymbolValue; s++) {
+			switch (normalizedCounter[s]) {
+			case 0: break;
+
+			case -1:
+			case 1:
+				symbolTT[s].deltaNbBits = (tableLog << 16) - (1 << tableLog);
+				symbolTT[s].deltaFindState = total - 1;
+				total++;
+				break;
+			default: {
+				U32 const maxBitsOut = tableLog - BIT_highbit32(normalizedCounter[s] - 1);
+				U32 const minStatePlus = normalizedCounter[s] << maxBitsOut;
+				symbolTT[s].deltaNbBits = (maxBitsOut << 16) - minStatePlus;
+				symbolTT[s].deltaFindState = total - normalizedCounter[s];
+				total += normalizedCounter[s];
+			}
+			}
+		}
+	}
+
+	return 0;
+}
+
+/*-**************************************************************
+*  FSE NCount encoding-decoding
+****************************************************************/
+size_t FSE_NCountWriteBound(unsigned maxSymbolValue, unsigned tableLog)
+{
+	size_t const maxHeaderSize = (((maxSymbolValue + 1) * tableLog) >> 3) + 3;
+	return maxSymbolValue ? maxHeaderSize : FSE_NCOUNTBOUND; /* maxSymbolValue==0 ? use default */
+}
+
+static size_t FSE_writeNCount_generic(void *header, size_t headerBufferSize, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog,
+				      unsigned writeIsSafe)
+{
+	BYTE *const ostart = (BYTE *)header;
+	BYTE *out = ostart;
+	BYTE *const oend = ostart + headerBufferSize;
+	int nbBits;
+	const int tableSize = 1 << tableLog;
+	int remaining;
+	int threshold;
+	U32 bitStream;
+	int bitCount;
+	unsigned charnum = 0;
+	int previous0 = 0;
+
+	bitStream = 0;
+	bitCount = 0;
+	/* Table Size */
+	bitStream += (tableLog - FSE_MIN_TABLELOG) << bitCount;
+	bitCount += 4;
+
+	/* Init */
+	remaining = tableSize + 1; /* +1 for extra accuracy */
+	threshold = tableSize;
+	nbBits = tableLog + 1;
+
+	while (remaining > 1) { /* stops at 1 */
+		if (previous0) {
+			unsigned start = charnum;
+			while (!normalizedCounter[charnum])
+				charnum++;
+			while (charnum >= start + 24) {
+				start += 24;
+				bitStream += 0xFFFFU << bitCount;
+				if ((!writeIsSafe) && (out > oend - 2))
+					return ERROR(dstSize_tooSmall); /* Buffer overflow */
+				out[0] = (BYTE)bitStream;
+				out[1] = (BYTE)(bitStream >> 8);
+				out += 2;
+				bitStream >>= 16;
+			}
+			while (charnum >= start + 3) {
+				start += 3;
+				bitStream += 3 << bitCount;
+				bitCount += 2;
+			}
+			bitStream += (charnum - start) << bitCount;
+			bitCount += 2;
+			if (bitCount > 16) {
+				if ((!writeIsSafe) && (out > oend - 2))
+					return ERROR(dstSize_tooSmall); /* Buffer overflow */
+				out[0] = (BYTE)bitStream;
+				out[1] = (BYTE)(bitStream >> 8);
+				out += 2;
+				bitStream >>= 16;
+				bitCount -= 16;
+			}
+		}
+		{
+			int count = normalizedCounter[charnum++];
+			int const max = (2 * threshold - 1) - remaining;
+			remaining -= count < 0 ? -count : count;
+			count++; /* +1 for extra accuracy */
+			if (count >= threshold)
+				count += max; /* [0..max[ [max..threshold[ (...) [threshold+max 2*threshold[ */
+			bitStream += count << bitCount;
+			bitCount += nbBits;
+			bitCount -= (count < max);
+			previous0 = (count == 1);
+			if (remaining < 1)
+				return ERROR(GENERIC);
+			while (remaining < threshold)
+				nbBits--, threshold >>= 1;
+		}
+		if (bitCount > 16) {
+			if ((!writeIsSafe) && (out > oend - 2))
+				return ERROR(dstSize_tooSmall); /* Buffer overflow */
+			out[0] = (BYTE)bitStream;
+			out[1] = (BYTE)(bitStream >> 8);
+			out += 2;
+			bitStream >>= 16;
+			bitCount -= 16;
+		}
+	}
+
+	/* flush remaining bitStream */
+	if ((!writeIsSafe) && (out > oend - 2))
+		return ERROR(dstSize_tooSmall); /* Buffer overflow */
+	out[0] = (BYTE)bitStream;
+	out[1] = (BYTE)(bitStream >> 8);
+	out += (bitCount + 7) / 8;
+
+	if (charnum > maxSymbolValue + 1)
+		return ERROR(GENERIC);
+
+	return (out - ostart);
+}
+
+size_t FSE_writeNCount(void *buffer, size_t bufferSize, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog)
+{
+	if (tableLog > FSE_MAX_TABLELOG)
+		return ERROR(tableLog_tooLarge); /* Unsupported */
+	if (tableLog < FSE_MIN_TABLELOG)
+		return ERROR(GENERIC); /* Unsupported */
+
+	if (bufferSize < FSE_NCountWriteBound(maxSymbolValue, tableLog))
+		return FSE_writeNCount_generic(buffer, bufferSize, normalizedCounter, maxSymbolValue, tableLog, 0);
+
+	return FSE_writeNCount_generic(buffer, bufferSize, normalizedCounter, maxSymbolValue, tableLog, 1);
+}
+
+/*-**************************************************************
+*  Counting histogram
+****************************************************************/
+/*! FSE_count_simple
+	This function counts byte values within `src`, and store the histogram into table `count`.
+	It doesn't use any additional memory.
+	But this function is unsafe : it doesn't check that all values within `src` can fit into `count`.
+	For this reason, prefer using a table `count` with 256 elements.
+	@return : count of most numerous element
+*/
+size_t FSE_count_simple(unsigned *count, unsigned *maxSymbolValuePtr, const void *src, size_t srcSize)
+{
+	const BYTE *ip = (const BYTE *)src;
+	const BYTE *const end = ip + srcSize;
+	unsigned maxSymbolValue = *maxSymbolValuePtr;
+	unsigned max = 0;
+
+	memset(count, 0, (maxSymbolValue + 1) * sizeof(*count));
+	if (srcSize == 0) {
+		*maxSymbolValuePtr = 0;
+		return 0;
+	}
+
+	while (ip < end)
+		count[*ip++]++;
+
+	while (!count[maxSymbolValue])
+		maxSymbolValue--;
+	*maxSymbolValuePtr = maxSymbolValue;
+
+	{
+		U32 s;
+		for (s = 0; s <= maxSymbolValue; s++)
+			if (count[s] > max)
+				max = count[s];
+	}
+
+	return (size_t)max;
+}
+
+/* FSE_count_parallel_wksp() :
+ * Same as FSE_count_parallel(), but using an externally provided scratch buffer.
+ * `workSpace` size must be a minimum of `1024 * sizeof(unsigned)`` */
+static size_t FSE_count_parallel_wksp(unsigned *count, unsigned *maxSymbolValuePtr, const void *source, size_t sourceSize, unsigned checkMax,
+				      unsigned *const workSpace)
+{
+	const BYTE *ip = (const BYTE *)source;
+	const BYTE *const iend = ip + sourceSize;
+	unsigned maxSymbolValue = *maxSymbolValuePtr;
+	unsigned max = 0;
+	U32 *const Counting1 = workSpace;
+	U32 *const Counting2 = Counting1 + 256;
+	U32 *const Counting3 = Counting2 + 256;
+	U32 *const Counting4 = Counting3 + 256;
+
+	memset(Counting1, 0, 4 * 256 * sizeof(unsigned));
+
+	/* safety checks */
+	if (!sourceSize) {
+		memset(count, 0, maxSymbolValue + 1);
+		*maxSymbolValuePtr = 0;
+		return 0;
+	}
+	if (!maxSymbolValue)
+		maxSymbolValue = 255; /* 0 == default */
+
+	/* by stripes of 16 bytes */
+	{
+		U32 cached = ZSTD_read32(ip);
+		ip += 4;
+		while (ip < iend - 15) {
+			U32 c = cached;
+			cached = ZSTD_read32(ip);
+			ip += 4;
+			Counting1[(BYTE)c]++;
+			Counting2[(BYTE)(c >> 8)]++;
+			Counting3[(BYTE)(c >> 16)]++;
+			Counting4[c >> 24]++;
+			c = cached;
+			cached = ZSTD_read32(ip);
+			ip += 4;
+			Counting1[(BYTE)c]++;
+			Counting2[(BYTE)(c >> 8)]++;
+			Counting3[(BYTE)(c >> 16)]++;
+			Counting4[c >> 24]++;
+			c = cached;
+			cached = ZSTD_read32(ip);
+			ip += 4;
+			Counting1[(BYTE)c]++;
+			Counting2[(BYTE)(c >> 8)]++;
+			Counting3[(BYTE)(c >> 16)]++;
+			Counting4[c >> 24]++;
+			c = cached;
+			cached = ZSTD_read32(ip);
+			ip += 4;
+			Counting1[(BYTE)c]++;
+			Counting2[(BYTE)(c >> 8)]++;
+			Counting3[(BYTE)(c >> 16)]++;
+			Counting4[c >> 24]++;
+		}
+		ip -= 4;
+	}
+
+	/* finish last symbols */
+	while (ip < iend)
+		Counting1[*ip++]++;
+
+	if (checkMax) { /* verify stats will fit into destination table */
+		U32 s;
+		for (s = 255; s > maxSymbolValue; s--) {
+			Counting1[s] += Counting2[s] + Counting3[s] + Counting4[s];
+			if (Counting1[s])
+				return ERROR(maxSymbolValue_tooSmall);
+		}
+	}
+
+	{
+		U32 s;
+		for (s = 0; s <= maxSymbolValue; s++) {
+			count[s] = Counting1[s] + Counting2[s] + Counting3[s] + Counting4[s];
+			if (count[s] > max)
+				max = count[s];
+		}
+	}
+
+	while (!count[maxSymbolValue])
+		maxSymbolValue--;
+	*maxSymbolValuePtr = maxSymbolValue;
+	return (size_t)max;
+}
+
+/* FSE_countFast_wksp() :
+ * Same as FSE_countFast(), but using an externally provided scratch buffer.
+ * `workSpace` size must be table of >= `1024` unsigned */
+size_t FSE_countFast_wksp(unsigned *count, unsigned *maxSymbolValuePtr, const void *source, size_t sourceSize, unsigned *workSpace)
+{
+	if (sourceSize < 1500)
+		return FSE_count_simple(count, maxSymbolValuePtr, source, sourceSize);
+	return FSE_count_parallel_wksp(count, maxSymbolValuePtr, source, sourceSize, 0, workSpace);
+}
+
+/* FSE_count_wksp() :
+ * Same as FSE_count(), but using an externally provided scratch buffer.
+ * `workSpace` size must be table of >= `1024` unsigned */
+size_t FSE_count_wksp(unsigned *count, unsigned *maxSymbolValuePtr, const void *source, size_t sourceSize, unsigned *workSpace)
+{
+	if (*maxSymbolValuePtr < 255)
+		return FSE_count_parallel_wksp(count, maxSymbolValuePtr, source, sourceSize, 1, workSpace);
+	*maxSymbolValuePtr = 255;
+	return FSE_countFast_wksp(count, maxSymbolValuePtr, source, sourceSize, workSpace);
+}
+
+/*-**************************************************************
+*  FSE Compression Code
+****************************************************************/
+/*! FSE_sizeof_CTable() :
+	FSE_CTable is a variable size structure which contains :
+	`U16 tableLog;`
+	`U16 maxSymbolValue;`
+	`U16 nextStateNumber[1 << tableLog];`                         // This size is variable
+	`FSE_symbolCompressionTransform symbolTT[maxSymbolValue+1];`  // This size is variable
+Allocation is manual (C standard does not support variable-size structures).
+*/
+size_t FSE_sizeof_CTable(unsigned maxSymbolValue, unsigned tableLog)
+{
+	if (tableLog > FSE_MAX_TABLELOG)
+		return ERROR(tableLog_tooLarge);
+	return FSE_CTABLE_SIZE_U32(tableLog, maxSymbolValue) * sizeof(U32);
+}
+
+/* provides the minimum logSize to safely represent a distribution */
+static unsigned FSE_minTableLog(size_t srcSize, unsigned maxSymbolValue)
+{
+	U32 minBitsSrc = BIT_highbit32((U32)(srcSize - 1)) + 1;
+	U32 minBitsSymbols = BIT_highbit32(maxSymbolValue) + 2;
+	U32 minBits = minBitsSrc < minBitsSymbols ? minBitsSrc : minBitsSymbols;
+	return minBits;
+}
+
+unsigned FSE_optimalTableLog_internal(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue, unsigned minus)
+{
+	U32 maxBitsSrc = BIT_highbit32((U32)(srcSize - 1)) - minus;
+	U32 tableLog = maxTableLog;
+	U32 minBits = FSE_minTableLog(srcSize, maxSymbolValue);
+	if (tableLog == 0)
+		tableLog = FSE_DEFAULT_TABLELOG;
+	if (maxBitsSrc < tableLog)
+		tableLog = maxBitsSrc; /* Accuracy can be reduced */
+	if (minBits > tableLog)
+		tableLog = minBits; /* Need a minimum to safely represent all symbol values */
+	if (tableLog < FSE_MIN_TABLELOG)
+		tableLog = FSE_MIN_TABLELOG;
+	if (tableLog > FSE_MAX_TABLELOG)
+		tableLog = FSE_MAX_TABLELOG;
+	return tableLog;
+}
+
+unsigned FSE_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue)
+{
+	return FSE_optimalTableLog_internal(maxTableLog, srcSize, maxSymbolValue, 2);
+}
+
+/* Secondary normalization method.
+   To be used when primary method fails. */
+
+static size_t FSE_normalizeM2(short *norm, U32 tableLog, const unsigned *count, size_t total, U32 maxSymbolValue)
+{
+	short const NOT_YET_ASSIGNED = -2;
+	U32 s;
+	U32 distributed = 0;
+	U32 ToDistribute;
+
+	/* Init */
+	U32 const lowThreshold = (U32)(total >> tableLog);
+	U32 lowOne = (U32)((total * 3) >> (tableLog + 1));
+
+	for (s = 0; s <= maxSymbolValue; s++) {
+		if (count[s] == 0) {
+			norm[s] = 0;
+			continue;
+		}
+		if (count[s] <= lowThreshold) {
+			norm[s] = -1;
+			distributed++;
+			total -= count[s];
+			continue;
+		}
+		if (count[s] <= lowOne) {
+			norm[s] = 1;
+			distributed++;
+			total -= count[s];
+			continue;
+		}
+
+		norm[s] = NOT_YET_ASSIGNED;
+	}
+	ToDistribute = (1 << tableLog) - distributed;
+
+	if ((total / ToDistribute) > lowOne) {
+		/* risk of rounding to zero */
+		lowOne = (U32)((total * 3) / (ToDistribute * 2));
+		for (s = 0; s <= maxSymbolValue; s++) {
+			if ((norm[s] == NOT_YET_ASSIGNED) && (count[s] <= lowOne)) {
+				norm[s] = 1;
+				distributed++;
+				total -= count[s];
+				continue;
+			}
+		}
+		ToDistribute = (1 << tableLog) - distributed;
+	}
+
+	if (distributed == maxSymbolValue + 1) {
+		/* all values are pretty poor;
+		   probably incompressible data (should have already been detected);
+		   find max, then give all remaining points to max */
+		U32 maxV = 0, maxC = 0;
+		for (s = 0; s <= maxSymbolValue; s++)
+			if (count[s] > maxC)
+				maxV = s, maxC = count[s];
+		norm[maxV] += (short)ToDistribute;
+		return 0;
+	}
+
+	if (total == 0) {
+		/* all of the symbols were low enough for the lowOne or lowThreshold */
+		for (s = 0; ToDistribute > 0; s = (s + 1) % (maxSymbolValue + 1))
+			if (norm[s] > 0)
+				ToDistribute--, norm[s]++;
+		return 0;
+	}
+
+	{
+		U64 const vStepLog = 62 - tableLog;
+		U64 const mid = (1ULL << (vStepLog - 1)) - 1;
+		U64 const rStep = div_u64((((U64)1 << vStepLog) * ToDistribute) + mid, (U32)total); /* scale on remaining */
+		U64 tmpTotal = mid;
+		for (s = 0; s <= maxSymbolValue; s++) {
+			if (norm[s] == NOT_YET_ASSIGNED) {
+				U64 const end = tmpTotal + (count[s] * rStep);
+				U32 const sStart = (U32)(tmpTotal >> vStepLog);
+				U32 const sEnd = (U32)(end >> vStepLog);
+				U32 const weight = sEnd - sStart;
+				if (weight < 1)
+					return ERROR(GENERIC);
+				norm[s] = (short)weight;
+				tmpTotal = end;
+			}
+		}
+	}
+
+	return 0;
+}
+
+size_t FSE_normalizeCount(short *normalizedCounter, unsigned tableLog, const unsigned *count, size_t total, unsigned maxSymbolValue)
+{
+	/* Sanity checks */
+	if (tableLog == 0)
+		tableLog = FSE_DEFAULT_TABLELOG;
+	if (tableLog < FSE_MIN_TABLELOG)
+		return ERROR(GENERIC); /* Unsupported size */
+	if (tableLog > FSE_MAX_TABLELOG)
+		return ERROR(tableLog_tooLarge); /* Unsupported size */
+	if (tableLog < FSE_minTableLog(total, maxSymbolValue))
+		return ERROR(GENERIC); /* Too small tableLog, compression potentially impossible */
+
+	{
+		U32 const rtbTable[] = {0, 473195, 504333, 520860, 550000, 700000, 750000, 830000};
+		U64 const scale = 62 - tableLog;
+		U64 const step = div_u64((U64)1 << 62, (U32)total); /* <== here, one division ! */
+		U64 const vStep = 1ULL << (scale - 20);
+		int stillToDistribute = 1 << tableLog;
+		unsigned s;
+		unsigned largest = 0;
+		short largestP = 0;
+		U32 lowThreshold = (U32)(total >> tableLog);
+
+		for (s = 0; s <= maxSymbolValue; s++) {
+			if (count[s] == total)
+				return 0; /* rle special case */
+			if (count[s] == 0) {
+				normalizedCounter[s] = 0;
+				continue;
+			}
+			if (count[s] <= lowThreshold) {
+				normalizedCounter[s] = -1;
+				stillToDistribute--;
+			} else {
+				short proba = (short)((count[s] * step) >> scale);
+				if (proba < 8) {
+					U64 restToBeat = vStep * rtbTable[proba];
+					proba += (count[s] * step) - ((U64)proba << scale) > restToBeat;
+				}
+				if (proba > largestP)
+					largestP = proba, largest = s;
+				normalizedCounter[s] = proba;
+				stillToDistribute -= proba;
+			}
+		}
+		if (-stillToDistribute >= (normalizedCounter[largest] >> 1)) {
+			/* corner case, need another normalization method */
+			size_t const errorCode = FSE_normalizeM2(normalizedCounter, tableLog, count, total, maxSymbolValue);
+			if (FSE_isError(errorCode))
+				return errorCode;
+		} else
+			normalizedCounter[largest] += (short)stillToDistribute;
+	}
+
+	return tableLog;
+}
+
+/* fake FSE_CTable, for raw (uncompressed) input */
+size_t FSE_buildCTable_raw(FSE_CTable *ct, unsigned nbBits)
+{
+	const unsigned tableSize = 1 << nbBits;
+	const unsigned tableMask = tableSize - 1;
+	const unsigned maxSymbolValue = tableMask;
+	void *const ptr = ct;
+	U16 *const tableU16 = ((U16 *)ptr) + 2;
+	void *const FSCT = ((U32 *)ptr) + 1 /* header */ + (tableSize >> 1); /* assumption : tableLog >= 1 */
+	FSE_symbolCompressionTransform *const symbolTT = (FSE_symbolCompressionTransform *)(FSCT);
+	unsigned s;
+
+	/* Sanity checks */
+	if (nbBits < 1)
+		return ERROR(GENERIC); /* min size */
+
+	/* header */
+	tableU16[-2] = (U16)nbBits;
+	tableU16[-1] = (U16)maxSymbolValue;
+
+	/* Build table */
+	for (s = 0; s < tableSize; s++)
+		tableU16[s] = (U16)(tableSize + s);
+
+	/* Build Symbol Transformation Table */
+	{
+		const U32 deltaNbBits = (nbBits << 16) - (1 << nbBits);
+		for (s = 0; s <= maxSymbolValue; s++) {
+			symbolTT[s].deltaNbBits = deltaNbBits;
+			symbolTT[s].deltaFindState = s - 1;
+		}
+	}
+
+	return 0;
+}
+
+/* fake FSE_CTable, for rle input (always same symbol) */
+size_t FSE_buildCTable_rle(FSE_CTable *ct, BYTE symbolValue)
+{
+	void *ptr = ct;
+	U16 *tableU16 = ((U16 *)ptr) + 2;
+	void *FSCTptr = (U32 *)ptr + 2;
+	FSE_symbolCompressionTransform *symbolTT = (FSE_symbolCompressionTransform *)FSCTptr;
+
+	/* header */
+	tableU16[-2] = (U16)0;
+	tableU16[-1] = (U16)symbolValue;
+
+	/* Build table */
+	tableU16[0] = 0;
+	tableU16[1] = 0; /* just in case */
+
+	/* Build Symbol Transformation Table */
+	symbolTT[symbolValue].deltaNbBits = 0;
+	symbolTT[symbolValue].deltaFindState = 0;
+
+	return 0;
+}
+
+static size_t FSE_compress_usingCTable_generic(void *dst, size_t dstSize, const void *src, size_t srcSize, const FSE_CTable *ct, const unsigned fast)
+{
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *ip = iend;
+
+	BIT_CStream_t bitC;
+	FSE_CState_t CState1, CState2;
+
+	/* init */
+	if (srcSize <= 2)
+		return 0;
+	{
+		size_t const initError = BIT_initCStream(&bitC, dst, dstSize);
+		if (FSE_isError(initError))
+			return 0; /* not enough space available to write a bitstream */
+	}
+
+#define FSE_FLUSHBITS(s) (fast ? BIT_flushBitsFast(s) : BIT_flushBits(s))
+
+	if (srcSize & 1) {
+		FSE_initCState2(&CState1, ct, *--ip);
+		FSE_initCState2(&CState2, ct, *--ip);
+		FSE_encodeSymbol(&bitC, &CState1, *--ip);
+		FSE_FLUSHBITS(&bitC);
+	} else {
+		FSE_initCState2(&CState2, ct, *--ip);
+		FSE_initCState2(&CState1, ct, *--ip);
+	}
+
+	/* join to mod 4 */
+	srcSize -= 2;
+	if ((sizeof(bitC.bitContainer) * 8 > FSE_MAX_TABLELOG * 4 + 7) && (srcSize & 2)) { /* test bit 2 */
+		FSE_encodeSymbol(&bitC, &CState2, *--ip);
+		FSE_encodeSymbol(&bitC, &CState1, *--ip);
+		FSE_FLUSHBITS(&bitC);
+	}
+
+	/* 2 or 4 encoding per loop */
+	while (ip > istart) {
+
+		FSE_encodeSymbol(&bitC, &CState2, *--ip);
+
+		if (sizeof(bitC.bitContainer) * 8 < FSE_MAX_TABLELOG * 2 + 7) /* this test must be static */
+			FSE_FLUSHBITS(&bitC);
+
+		FSE_encodeSymbol(&bitC, &CState1, *--ip);
+
+		if (sizeof(bitC.bitContainer) * 8 > FSE_MAX_TABLELOG * 4 + 7) { /* this test must be static */
+			FSE_encodeSymbol(&bitC, &CState2, *--ip);
+			FSE_encodeSymbol(&bitC, &CState1, *--ip);
+		}
+
+		FSE_FLUSHBITS(&bitC);
+	}
+
+	FSE_flushCState(&bitC, &CState2);
+	FSE_flushCState(&bitC, &CState1);
+	return BIT_closeCStream(&bitC);
+}
+
+size_t FSE_compress_usingCTable(void *dst, size_t dstSize, const void *src, size_t srcSize, const FSE_CTable *ct)
+{
+	unsigned const fast = (dstSize >= FSE_BLOCKBOUND(srcSize));
+
+	if (fast)
+		return FSE_compress_usingCTable_generic(dst, dstSize, src, srcSize, ct, 1);
+	else
+		return FSE_compress_usingCTable_generic(dst, dstSize, src, srcSize, ct, 0);
+}
+
+size_t FSE_compressBound(size_t size) { return FSE_COMPRESSBOUND(size); }
diff --git a/lib/zstd/fse_decompress.c b/lib/zstd/fse_decompress.c
new file mode 100644
index 000000000000..a84300e5a013
--- /dev/null
+++ b/lib/zstd/fse_decompress.c
@@ -0,0 +1,332 @@
+/*
+ * FSE : Finite State Entropy decoder
+ * Copyright (C) 2013-2015, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+
+/* **************************************************************
+*  Compiler specifics
+****************************************************************/
+#define FORCE_INLINE static __always_inline
+
+/* **************************************************************
+*  Includes
+****************************************************************/
+#include "bitstream.h"
+#include "fse.h"
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/string.h> /* memcpy, memset */
+
+/* **************************************************************
+*  Error Management
+****************************************************************/
+#define FSE_isError ERR_isError
+#define FSE_STATIC_ASSERT(c)                                   \
+	{                                                      \
+		enum { FSE_static_assert = 1 / (int)(!!(c)) }; \
+	} /* use only *after* variable declarations */
+
+/* check and forward error code */
+#define CHECK_F(f)                  \
+	{                           \
+		size_t const e = f; \
+		if (FSE_isError(e)) \
+			return e;   \
+	}
+
+/* **************************************************************
+*  Templates
+****************************************************************/
+/*
+  designed to be included
+  for type-specific functions (template emulation in C)
+  Objective is to write these functions only once, for improved maintenance
+*/
+
+/* safety checks */
+#ifndef FSE_FUNCTION_EXTENSION
+#error "FSE_FUNCTION_EXTENSION must be defined"
+#endif
+#ifndef FSE_FUNCTION_TYPE
+#error "FSE_FUNCTION_TYPE must be defined"
+#endif
+
+/* Function names */
+#define FSE_CAT(X, Y) X##Y
+#define FSE_FUNCTION_NAME(X, Y) FSE_CAT(X, Y)
+#define FSE_TYPE_NAME(X, Y) FSE_CAT(X, Y)
+
+/* Function templates */
+
+size_t FSE_buildDTable_wksp(FSE_DTable *dt, const short *normalizedCounter, unsigned maxSymbolValue, unsigned tableLog, void *workspace, size_t workspaceSize)
+{
+	void *const tdPtr = dt + 1; /* because *dt is unsigned, 32-bits aligned on 32-bits */
+	FSE_DECODE_TYPE *const tableDecode = (FSE_DECODE_TYPE *)(tdPtr);
+	U16 *symbolNext = (U16 *)workspace;
+
+	U32 const maxSV1 = maxSymbolValue + 1;
+	U32 const tableSize = 1 << tableLog;
+	U32 highThreshold = tableSize - 1;
+
+	/* Sanity Checks */
+	if (workspaceSize < sizeof(U16) * (FSE_MAX_SYMBOL_VALUE + 1))
+		return ERROR(tableLog_tooLarge);
+	if (maxSymbolValue > FSE_MAX_SYMBOL_VALUE)
+		return ERROR(maxSymbolValue_tooLarge);
+	if (tableLog > FSE_MAX_TABLELOG)
+		return ERROR(tableLog_tooLarge);
+
+	/* Init, lay down lowprob symbols */
+	{
+		FSE_DTableHeader DTableH;
+		DTableH.tableLog = (U16)tableLog;
+		DTableH.fastMode = 1;
+		{
+			S16 const largeLimit = (S16)(1 << (tableLog - 1));
+			U32 s;
+			for (s = 0; s < maxSV1; s++) {
+				if (normalizedCounter[s] == -1) {
+					tableDecode[highThreshold--].symbol = (FSE_FUNCTION_TYPE)s;
+					symbolNext[s] = 1;
+				} else {
+					if (normalizedCounter[s] >= largeLimit)
+						DTableH.fastMode = 0;
+					symbolNext[s] = normalizedCounter[s];
+				}
+			}
+		}
+		memcpy(dt, &DTableH, sizeof(DTableH));
+	}
+
+	/* Spread symbols */
+	{
+		U32 const tableMask = tableSize - 1;
+		U32 const step = FSE_TABLESTEP(tableSize);
+		U32 s, position = 0;
+		for (s = 0; s < maxSV1; s++) {
+			int i;
+			for (i = 0; i < normalizedCounter[s]; i++) {
+				tableDecode[position].symbol = (FSE_FUNCTION_TYPE)s;
+				position = (position + step) & tableMask;
+				while (position > highThreshold)
+					position = (position + step) & tableMask; /* lowprob area */
+			}
+		}
+		if (position != 0)
+			return ERROR(GENERIC); /* position must reach all cells once, otherwise normalizedCounter is incorrect */
+	}
+
+	/* Build Decoding table */
+	{
+		U32 u;
+		for (u = 0; u < tableSize; u++) {
+			FSE_FUNCTION_TYPE const symbol = (FSE_FUNCTION_TYPE)(tableDecode[u].symbol);
+			U16 nextState = symbolNext[symbol]++;
+			tableDecode[u].nbBits = (BYTE)(tableLog - BIT_highbit32((U32)nextState));
+			tableDecode[u].newState = (U16)((nextState << tableDecode[u].nbBits) - tableSize);
+		}
+	}
+
+	return 0;
+}
+
+/*-*******************************************************
+*  Decompression (Byte symbols)
+*********************************************************/
+size_t FSE_buildDTable_rle(FSE_DTable *dt, BYTE symbolValue)
+{
+	void *ptr = dt;
+	FSE_DTableHeader *const DTableH = (FSE_DTableHeader *)ptr;
+	void *dPtr = dt + 1;
+	FSE_decode_t *const cell = (FSE_decode_t *)dPtr;
+
+	DTableH->tableLog = 0;
+	DTableH->fastMode = 0;
+
+	cell->newState = 0;
+	cell->symbol = symbolValue;
+	cell->nbBits = 0;
+
+	return 0;
+}
+
+size_t FSE_buildDTable_raw(FSE_DTable *dt, unsigned nbBits)
+{
+	void *ptr = dt;
+	FSE_DTableHeader *const DTableH = (FSE_DTableHeader *)ptr;
+	void *dPtr = dt + 1;
+	FSE_decode_t *const dinfo = (FSE_decode_t *)dPtr;
+	const unsigned tableSize = 1 << nbBits;
+	const unsigned tableMask = tableSize - 1;
+	const unsigned maxSV1 = tableMask + 1;
+	unsigned s;
+
+	/* Sanity checks */
+	if (nbBits < 1)
+		return ERROR(GENERIC); /* min size */
+
+	/* Build Decoding Table */
+	DTableH->tableLog = (U16)nbBits;
+	DTableH->fastMode = 1;
+	for (s = 0; s < maxSV1; s++) {
+		dinfo[s].newState = 0;
+		dinfo[s].symbol = (BYTE)s;
+		dinfo[s].nbBits = (BYTE)nbBits;
+	}
+
+	return 0;
+}
+
+FORCE_INLINE size_t FSE_decompress_usingDTable_generic(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const FSE_DTable *dt,
+						       const unsigned fast)
+{
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *op = ostart;
+	BYTE *const omax = op + maxDstSize;
+	BYTE *const olimit = omax - 3;
+
+	BIT_DStream_t bitD;
+	FSE_DState_t state1;
+	FSE_DState_t state2;
+
+	/* Init */
+	CHECK_F(BIT_initDStream(&bitD, cSrc, cSrcSize));
+
+	FSE_initDState(&state1, &bitD, dt);
+	FSE_initDState(&state2, &bitD, dt);
+
+#define FSE_GETSYMBOL(statePtr) fast ? FSE_decodeSymbolFast(statePtr, &bitD) : FSE_decodeSymbol(statePtr, &bitD)
+
+	/* 4 symbols per loop */
+	for (; (BIT_reloadDStream(&bitD) == BIT_DStream_unfinished) & (op < olimit); op += 4) {
+		op[0] = FSE_GETSYMBOL(&state1);
+
+		if (FSE_MAX_TABLELOG * 2 + 7 > sizeof(bitD.bitContainer) * 8) /* This test must be static */
+			BIT_reloadDStream(&bitD);
+
+		op[1] = FSE_GETSYMBOL(&state2);
+
+		if (FSE_MAX_TABLELOG * 4 + 7 > sizeof(bitD.bitContainer) * 8) /* This test must be static */
+		{
+			if (BIT_reloadDStream(&bitD) > BIT_DStream_unfinished) {
+				op += 2;
+				break;
+			}
+		}
+
+		op[2] = FSE_GETSYMBOL(&state1);
+
+		if (FSE_MAX_TABLELOG * 2 + 7 > sizeof(bitD.bitContainer) * 8) /* This test must be static */
+			BIT_reloadDStream(&bitD);
+
+		op[3] = FSE_GETSYMBOL(&state2);
+	}
+
+	/* tail */
+	/* note : BIT_reloadDStream(&bitD) >= FSE_DStream_partiallyFilled; Ends at exactly BIT_DStream_completed */
+	while (1) {
+		if (op > (omax - 2))
+			return ERROR(dstSize_tooSmall);
+		*op++ = FSE_GETSYMBOL(&state1);
+		if (BIT_reloadDStream(&bitD) == BIT_DStream_overflow) {
+			*op++ = FSE_GETSYMBOL(&state2);
+			break;
+		}
+
+		if (op > (omax - 2))
+			return ERROR(dstSize_tooSmall);
+		*op++ = FSE_GETSYMBOL(&state2);
+		if (BIT_reloadDStream(&bitD) == BIT_DStream_overflow) {
+			*op++ = FSE_GETSYMBOL(&state1);
+			break;
+		}
+	}
+
+	return op - ostart;
+}
+
+size_t FSE_decompress_usingDTable(void *dst, size_t originalSize, const void *cSrc, size_t cSrcSize, const FSE_DTable *dt)
+{
+	const void *ptr = dt;
+	const FSE_DTableHeader *DTableH = (const FSE_DTableHeader *)ptr;
+	const U32 fastMode = DTableH->fastMode;
+
+	/* select fast mode (static) */
+	if (fastMode)
+		return FSE_decompress_usingDTable_generic(dst, originalSize, cSrc, cSrcSize, dt, 1);
+	return FSE_decompress_usingDTable_generic(dst, originalSize, cSrc, cSrcSize, dt, 0);
+}
+
+size_t FSE_decompress_wksp(void *dst, size_t dstCapacity, const void *cSrc, size_t cSrcSize, unsigned maxLog, void *workspace, size_t workspaceSize)
+{
+	const BYTE *const istart = (const BYTE *)cSrc;
+	const BYTE *ip = istart;
+	unsigned tableLog;
+	unsigned maxSymbolValue = FSE_MAX_SYMBOL_VALUE;
+	size_t NCountLength;
+
+	FSE_DTable *dt;
+	short *counting;
+	size_t spaceUsed32 = 0;
+
+	FSE_STATIC_ASSERT(sizeof(FSE_DTable) == sizeof(U32));
+
+	dt = (FSE_DTable *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += FSE_DTABLE_SIZE_U32(maxLog);
+	counting = (short *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(sizeof(short) * (FSE_MAX_SYMBOL_VALUE + 1), sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	/* normal FSE decoding mode */
+	NCountLength = FSE_readNCount(counting, &maxSymbolValue, &tableLog, istart, cSrcSize);
+	if (FSE_isError(NCountLength))
+		return NCountLength;
+	// if (NCountLength >= cSrcSize) return ERROR(srcSize_wrong);   /* too small input size; supposed to be already checked in NCountLength, only remaining
+	// case : NCountLength==cSrcSize */
+	if (tableLog > maxLog)
+		return ERROR(tableLog_tooLarge);
+	ip += NCountLength;
+	cSrcSize -= NCountLength;
+
+	CHECK_F(FSE_buildDTable_wksp(dt, counting, maxSymbolValue, tableLog, workspace, workspaceSize));
+
+	return FSE_decompress_usingDTable(dst, dstCapacity, ip, cSrcSize, dt); /* always return, even if it is an error code */
+}
diff --git a/lib/zstd/huf.h b/lib/zstd/huf.h
new file mode 100644
index 000000000000..2143da28d952
--- /dev/null
+++ b/lib/zstd/huf.h
@@ -0,0 +1,212 @@
+/*
+ * Huffman coder, part of New Generation Entropy library
+ * header file
+ * Copyright (C) 2013-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+#ifndef HUF_H_298734234
+#define HUF_H_298734234
+
+/* *** Dependencies *** */
+#include <linux/types.h> /* size_t */
+
+/* ***   Tool functions *** */
+#define HUF_BLOCKSIZE_MAX (128 * 1024) /**< maximum input size for a single block compressed with HUF_compress */
+size_t HUF_compressBound(size_t size); /**< maximum compressed size (worst case) */
+
+/* Error Management */
+unsigned HUF_isError(size_t code); /**< tells if a return value is an error code */
+
+/* ***   Advanced function   *** */
+
+/** HUF_compress4X_wksp() :
+*   Same as HUF_compress2(), but uses externally allocated `workSpace`, which must be a table of >= 1024 unsigned */
+size_t HUF_compress4X_wksp(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog, void *workSpace,
+			   size_t wkspSize); /**< `workSpace` must be a table of at least HUF_COMPRESS_WORKSPACE_SIZE_U32 unsigned */
+
+/* *** Dependencies *** */
+#include "mem.h" /* U32 */
+
+/* *** Constants *** */
+#define HUF_TABLELOG_MAX 12     /* max configured tableLog (for static allocation); can be modified up to HUF_ABSOLUTEMAX_TABLELOG */
+#define HUF_TABLELOG_DEFAULT 11 /* tableLog by default, when not specified */
+#define HUF_SYMBOLVALUE_MAX 255
+
+#define HUF_TABLELOG_ABSOLUTEMAX 15 /* absolute limit of HUF_MAX_TABLELOG. Beyond that value, code does not work */
+#if (HUF_TABLELOG_MAX > HUF_TABLELOG_ABSOLUTEMAX)
+#error "HUF_TABLELOG_MAX is too large !"
+#endif
+
+/* ****************************************
+*  Static allocation
+******************************************/
+/* HUF buffer bounds */
+#define HUF_CTABLEBOUND 129
+#define HUF_BLOCKBOUND(size) (size + (size >> 8) + 8)			 /* only true if incompressible pre-filtered with fast heuristic */
+#define HUF_COMPRESSBOUND(size) (HUF_CTABLEBOUND + HUF_BLOCKBOUND(size)) /* Macro version, useful for static allocation */
+
+/* static allocation of HUF's Compression Table */
+#define HUF_CREATE_STATIC_CTABLE(name, maxSymbolValue) \
+	U32 name##hb[maxSymbolValue + 1];              \
+	void *name##hv = &(name##hb);                  \
+	HUF_CElt *name = (HUF_CElt *)(name##hv) /* no final ; */
+
+/* static allocation of HUF's DTable */
+typedef U32 HUF_DTable;
+#define HUF_DTABLE_SIZE(maxTableLog) (1 + (1 << (maxTableLog)))
+#define HUF_CREATE_STATIC_DTABLEX2(DTable, maxTableLog) HUF_DTable DTable[HUF_DTABLE_SIZE((maxTableLog)-1)] = {((U32)((maxTableLog)-1) * 0x01000001)}
+#define HUF_CREATE_STATIC_DTABLEX4(DTable, maxTableLog) HUF_DTable DTable[HUF_DTABLE_SIZE(maxTableLog)] = {((U32)(maxTableLog)*0x01000001)}
+
+/* The workspace must have alignment at least 4 and be at least this large */
+#define HUF_COMPRESS_WORKSPACE_SIZE (6 << 10)
+#define HUF_COMPRESS_WORKSPACE_SIZE_U32 (HUF_COMPRESS_WORKSPACE_SIZE / sizeof(U32))
+
+/* The workspace must have alignment at least 4 and be at least this large */
+#define HUF_DECOMPRESS_WORKSPACE_SIZE (3 << 10)
+#define HUF_DECOMPRESS_WORKSPACE_SIZE_U32 (HUF_DECOMPRESS_WORKSPACE_SIZE / sizeof(U32))
+
+/* ****************************************
+*  Advanced decompression functions
+******************************************/
+size_t HUF_decompress4X_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize); /**< decodes RLE and uncompressed */
+size_t HUF_decompress4X_hufOnly_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace,
+				size_t workspaceSize);							       /**< considers RLE and uncompressed as errors */
+size_t HUF_decompress4X2_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace,
+				   size_t workspaceSize); /**< single-symbol decoder */
+size_t HUF_decompress4X4_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace,
+				   size_t workspaceSize); /**< double-symbols decoder */
+
+/* ****************************************
+*  HUF detailed API
+******************************************/
+/*!
+HUF_compress() does the following:
+1. count symbol occurrence from source[] into table count[] using FSE_count()
+2. (optional) refine tableLog using HUF_optimalTableLog()
+3. build Huffman table from count using HUF_buildCTable()
+4. save Huffman table to memory buffer using HUF_writeCTable_wksp()
+5. encode the data stream using HUF_compress4X_usingCTable()
+
+The following API allows targeting specific sub-functions for advanced tasks.
+For example, it's possible to compress several blocks using the same 'CTable',
+or to save and regenerate 'CTable' using external methods.
+*/
+/* FSE_count() : find it within "fse.h" */
+unsigned HUF_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue);
+typedef struct HUF_CElt_s HUF_CElt; /* incomplete type */
+size_t HUF_writeCTable_wksp(void *dst, size_t maxDstSize, const HUF_CElt *CTable, unsigned maxSymbolValue, unsigned huffLog, void *workspace, size_t workspaceSize);
+size_t HUF_compress4X_usingCTable(void *dst, size_t dstSize, const void *src, size_t srcSize, const HUF_CElt *CTable);
+
+typedef enum {
+	HUF_repeat_none,  /**< Cannot use the previous table */
+	HUF_repeat_check, /**< Can use the previous table but it must be checked. Note : The previous table must have been constructed by HUF_compress{1,
+			     4}X_repeat */
+	HUF_repeat_valid  /**< Can use the previous table and it is asumed to be valid */
+} HUF_repeat;
+/** HUF_compress4X_repeat() :
+*   Same as HUF_compress4X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none.
+*   If it uses hufTable it does not modify hufTable or repeat.
+*   If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used.
+*   If preferRepeat then the old table will always be used if valid. */
+size_t HUF_compress4X_repeat(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog, void *workSpace,
+			     size_t wkspSize, HUF_CElt *hufTable, HUF_repeat *repeat,
+			     int preferRepeat); /**< `workSpace` must be a table of at least HUF_COMPRESS_WORKSPACE_SIZE_U32 unsigned */
+
+/** HUF_buildCTable_wksp() :
+ *  Same as HUF_buildCTable(), but using externally allocated scratch buffer.
+ *  `workSpace` must be aligned on 4-bytes boundaries, and be at least as large as a table of 1024 unsigned.
+ */
+size_t HUF_buildCTable_wksp(HUF_CElt *tree, const U32 *count, U32 maxSymbolValue, U32 maxNbBits, void *workSpace, size_t wkspSize);
+
+/*! HUF_readStats() :
+	Read compact Huffman tree, saved by HUF_writeCTable().
+	`huffWeight` is destination buffer.
+	@return : size read from `src` , or an error Code .
+	Note : Needed by HUF_readCTable() and HUF_readDTableXn() . */
+size_t HUF_readStats_wksp(BYTE *huffWeight, size_t hwSize, U32 *rankStats, U32 *nbSymbolsPtr, U32 *tableLogPtr, const void *src, size_t srcSize,
+			  void *workspace, size_t workspaceSize);
+
+/** HUF_readCTable() :
+*   Loading a CTable saved with HUF_writeCTable() */
+size_t HUF_readCTable_wksp(HUF_CElt *CTable, unsigned maxSymbolValue, const void *src, size_t srcSize, void *workspace, size_t workspaceSize);
+
+/*
+HUF_decompress() does the following:
+1. select the decompression algorithm (X2, X4) based on pre-computed heuristics
+2. build Huffman table from save, using HUF_readDTableXn()
+3. decode 1 or 4 segments in parallel using HUF_decompressSXn_usingDTable
+*/
+
+/** HUF_selectDecoder() :
+*   Tells which decoder is likely to decode faster,
+*   based on a set of pre-determined metrics.
+*   @return : 0==HUF_decompress4X2, 1==HUF_decompress4X4 .
+*   Assumption : 0 < cSrcSize < dstSize <= 128 KB */
+U32 HUF_selectDecoder(size_t dstSize, size_t cSrcSize);
+
+size_t HUF_readDTableX2_wksp(HUF_DTable *DTable, const void *src, size_t srcSize, void *workspace, size_t workspaceSize);
+size_t HUF_readDTableX4_wksp(HUF_DTable *DTable, const void *src, size_t srcSize, void *workspace, size_t workspaceSize);
+
+size_t HUF_decompress4X_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable);
+size_t HUF_decompress4X2_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable);
+size_t HUF_decompress4X4_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable);
+
+/* single stream variants */
+
+size_t HUF_compress1X_wksp(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog, void *workSpace,
+			   size_t wkspSize); /**< `workSpace` must be a table of at least HUF_COMPRESS_WORKSPACE_SIZE_U32 unsigned */
+size_t HUF_compress1X_usingCTable(void *dst, size_t dstSize, const void *src, size_t srcSize, const HUF_CElt *CTable);
+/** HUF_compress1X_repeat() :
+*   Same as HUF_compress1X_wksp(), but considers using hufTable if *repeat != HUF_repeat_none.
+*   If it uses hufTable it does not modify hufTable or repeat.
+*   If it doesn't, it sets *repeat = HUF_repeat_none, and it sets hufTable to the table used.
+*   If preferRepeat then the old table will always be used if valid. */
+size_t HUF_compress1X_repeat(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned tableLog, void *workSpace,
+			     size_t wkspSize, HUF_CElt *hufTable, HUF_repeat *repeat,
+			     int preferRepeat); /**< `workSpace` must be a table of at least HUF_COMPRESS_WORKSPACE_SIZE_U32 unsigned */
+
+size_t HUF_decompress1X_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize);
+size_t HUF_decompress1X2_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace,
+				   size_t workspaceSize); /**< single-symbol decoder */
+size_t HUF_decompress1X4_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace,
+				   size_t workspaceSize); /**< double-symbols decoder */
+
+size_t HUF_decompress1X_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize,
+				    const HUF_DTable *DTable); /**< automatic selection of sing or double symbol decoder, based on DTable */
+size_t HUF_decompress1X2_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable);
+size_t HUF_decompress1X4_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable);
+
+#endif /* HUF_H_298734234 */
diff --git a/lib/zstd/huf_compress.c b/lib/zstd/huf_compress.c
new file mode 100644
index 000000000000..40055a7016e6
--- /dev/null
+++ b/lib/zstd/huf_compress.c
@@ -0,0 +1,770 @@
+/*
+ * Huffman encoder, part of New Generation Entropy library
+ * Copyright (C) 2013-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+
+/* **************************************************************
+*  Includes
+****************************************************************/
+#include "bitstream.h"
+#include "fse.h" /* header compression */
+#include "huf.h"
+#include <linux/kernel.h>
+#include <linux/string.h> /* memcpy, memset */
+
+/* **************************************************************
+*  Error Management
+****************************************************************/
+#define HUF_STATIC_ASSERT(c)                                   \
+	{                                                      \
+		enum { HUF_static_assert = 1 / (int)(!!(c)) }; \
+	} /* use only *after* variable declarations */
+#define CHECK_V_F(e, f)     \
+	size_t const e = f; \
+	if (ERR_isError(e)) \
+	return f
+#define CHECK_F(f)                        \
+	{                                 \
+		CHECK_V_F(_var_err__, f); \
+	}
+
+/* **************************************************************
+*  Utils
+****************************************************************/
+unsigned HUF_optimalTableLog(unsigned maxTableLog, size_t srcSize, unsigned maxSymbolValue)
+{
+	return FSE_optimalTableLog_internal(maxTableLog, srcSize, maxSymbolValue, 1);
+}
+
+/* *******************************************************
+*  HUF : Huffman block compression
+*********************************************************/
+/* HUF_compressWeights() :
+ * Same as FSE_compress(), but dedicated to huff0's weights compression.
+ * The use case needs much less stack memory.
+ * Note : all elements within weightTable are supposed to be <= HUF_TABLELOG_MAX.
+ */
+#define MAX_FSE_TABLELOG_FOR_HUFF_HEADER 6
+size_t HUF_compressWeights_wksp(void *dst, size_t dstSize, const void *weightTable, size_t wtSize, void *workspace, size_t workspaceSize)
+{
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *op = ostart;
+	BYTE *const oend = ostart + dstSize;
+
+	U32 maxSymbolValue = HUF_TABLELOG_MAX;
+	U32 tableLog = MAX_FSE_TABLELOG_FOR_HUFF_HEADER;
+
+	FSE_CTable *CTable;
+	U32 *count;
+	S16 *norm;
+	size_t spaceUsed32 = 0;
+
+	HUF_STATIC_ASSERT(sizeof(FSE_CTable) == sizeof(U32));
+
+	CTable = (FSE_CTable *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += FSE_CTABLE_SIZE_U32(MAX_FSE_TABLELOG_FOR_HUFF_HEADER, HUF_TABLELOG_MAX);
+	count = (U32 *)workspace + spaceUsed32;
+	spaceUsed32 += HUF_TABLELOG_MAX + 1;
+	norm = (S16 *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(sizeof(S16) * (HUF_TABLELOG_MAX + 1), sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	/* init conditions */
+	if (wtSize <= 1)
+		return 0; /* Not compressible */
+
+	/* Scan input and build symbol stats */
+	{
+		CHECK_V_F(maxCount, FSE_count_simple(count, &maxSymbolValue, weightTable, wtSize));
+		if (maxCount == wtSize)
+			return 1; /* only a single symbol in src : rle */
+		if (maxCount == 1)
+			return 0; /* each symbol present maximum once => not compressible */
+	}
+
+	tableLog = FSE_optimalTableLog(tableLog, wtSize, maxSymbolValue);
+	CHECK_F(FSE_normalizeCount(norm, tableLog, count, wtSize, maxSymbolValue));
+
+	/* Write table description header */
+	{
+		CHECK_V_F(hSize, FSE_writeNCount(op, oend - op, norm, maxSymbolValue, tableLog));
+		op += hSize;
+	}
+
+	/* Compress */
+	CHECK_F(FSE_buildCTable_wksp(CTable, norm, maxSymbolValue, tableLog, workspace, workspaceSize));
+	{
+		CHECK_V_F(cSize, FSE_compress_usingCTable(op, oend - op, weightTable, wtSize, CTable));
+		if (cSize == 0)
+			return 0; /* not enough space for compressed data */
+		op += cSize;
+	}
+
+	return op - ostart;
+}
+
+struct HUF_CElt_s {
+	U16 val;
+	BYTE nbBits;
+}; /* typedef'd to HUF_CElt within "huf.h" */
+
+/*! HUF_writeCTable_wksp() :
+	`CTable` : Huffman tree to save, using huf representation.
+	@return : size of saved CTable */
+size_t HUF_writeCTable_wksp(void *dst, size_t maxDstSize, const HUF_CElt *CTable, U32 maxSymbolValue, U32 huffLog, void *workspace, size_t workspaceSize)
+{
+	BYTE *op = (BYTE *)dst;
+	U32 n;
+
+	BYTE *bitsToWeight;
+	BYTE *huffWeight;
+	size_t spaceUsed32 = 0;
+
+	bitsToWeight = (BYTE *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(HUF_TABLELOG_MAX + 1, sizeof(U32)) >> 2;
+	huffWeight = (BYTE *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(HUF_SYMBOLVALUE_MAX, sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	/* check conditions */
+	if (maxSymbolValue > HUF_SYMBOLVALUE_MAX)
+		return ERROR(maxSymbolValue_tooLarge);
+
+	/* convert to weight */
+	bitsToWeight[0] = 0;
+	for (n = 1; n < huffLog + 1; n++)
+		bitsToWeight[n] = (BYTE)(huffLog + 1 - n);
+	for (n = 0; n < maxSymbolValue; n++)
+		huffWeight[n] = bitsToWeight[CTable[n].nbBits];
+
+	/* attempt weights compression by FSE */
+	{
+		CHECK_V_F(hSize, HUF_compressWeights_wksp(op + 1, maxDstSize - 1, huffWeight, maxSymbolValue, workspace, workspaceSize));
+		if ((hSize > 1) & (hSize < maxSymbolValue / 2)) { /* FSE compressed */
+			op[0] = (BYTE)hSize;
+			return hSize + 1;
+		}
+	}
+
+	/* write raw values as 4-bits (max : 15) */
+	if (maxSymbolValue > (256 - 128))
+		return ERROR(GENERIC); /* should not happen : likely means source cannot be compressed */
+	if (((maxSymbolValue + 1) / 2) + 1 > maxDstSize)
+		return ERROR(dstSize_tooSmall); /* not enough space within dst buffer */
+	op[0] = (BYTE)(128 /*special case*/ + (maxSymbolValue - 1));
+	huffWeight[maxSymbolValue] = 0; /* to be sure it doesn't cause msan issue in final combination */
+	for (n = 0; n < maxSymbolValue; n += 2)
+		op[(n / 2) + 1] = (BYTE)((huffWeight[n] << 4) + huffWeight[n + 1]);
+	return ((maxSymbolValue + 1) / 2) + 1;
+}
+
+size_t HUF_readCTable_wksp(HUF_CElt *CTable, U32 maxSymbolValue, const void *src, size_t srcSize, void *workspace, size_t workspaceSize)
+{
+	U32 *rankVal;
+	BYTE *huffWeight;
+	U32 tableLog = 0;
+	U32 nbSymbols = 0;
+	size_t readSize;
+	size_t spaceUsed32 = 0;
+
+	rankVal = (U32 *)workspace + spaceUsed32;
+	spaceUsed32 += HUF_TABLELOG_ABSOLUTEMAX + 1;
+	huffWeight = (BYTE *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(HUF_SYMBOLVALUE_MAX + 1, sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	/* get symbol weights */
+	readSize = HUF_readStats_wksp(huffWeight, HUF_SYMBOLVALUE_MAX + 1, rankVal, &nbSymbols, &tableLog, src, srcSize, workspace, workspaceSize);
+	if (ERR_isError(readSize))
+		return readSize;
+
+	/* check result */
+	if (tableLog > HUF_TABLELOG_MAX)
+		return ERROR(tableLog_tooLarge);
+	if (nbSymbols > maxSymbolValue + 1)
+		return ERROR(maxSymbolValue_tooSmall);
+
+	/* Prepare base value per rank */
+	{
+		U32 n, nextRankStart = 0;
+		for (n = 1; n <= tableLog; n++) {
+			U32 curr = nextRankStart;
+			nextRankStart += (rankVal[n] << (n - 1));
+			rankVal[n] = curr;
+		}
+	}
+
+	/* fill nbBits */
+	{
+		U32 n;
+		for (n = 0; n < nbSymbols; n++) {
+			const U32 w = huffWeight[n];
+			CTable[n].nbBits = (BYTE)(tableLog + 1 - w);
+		}
+	}
+
+	/* fill val */
+	{
+		U16 nbPerRank[HUF_TABLELOG_MAX + 2] = {0}; /* support w=0=>n=tableLog+1 */
+		U16 valPerRank[HUF_TABLELOG_MAX + 2] = {0};
+		{
+			U32 n;
+			for (n = 0; n < nbSymbols; n++)
+				nbPerRank[CTable[n].nbBits]++;
+		}
+		/* determine stating value per rank */
+		valPerRank[tableLog + 1] = 0; /* for w==0 */
+		{
+			U16 min = 0;
+			U32 n;
+			for (n = tableLog; n > 0; n--) { /* start at n=tablelog <-> w=1 */
+				valPerRank[n] = min;     /* get starting value within each rank */
+				min += nbPerRank[n];
+				min >>= 1;
+			}
+		}
+		/* assign value within rank, symbol order */
+		{
+			U32 n;
+			for (n = 0; n <= maxSymbolValue; n++)
+				CTable[n].val = valPerRank[CTable[n].nbBits]++;
+		}
+	}
+
+	return readSize;
+}
+
+typedef struct nodeElt_s {
+	U32 count;
+	U16 parent;
+	BYTE byte;
+	BYTE nbBits;
+} nodeElt;
+
+static U32 HUF_setMaxHeight(nodeElt *huffNode, U32 lastNonNull, U32 maxNbBits)
+{
+	const U32 largestBits = huffNode[lastNonNull].nbBits;
+	if (largestBits <= maxNbBits)
+		return largestBits; /* early exit : no elt > maxNbBits */
+
+	/* there are several too large elements (at least >= 2) */
+	{
+		int totalCost = 0;
+		const U32 baseCost = 1 << (largestBits - maxNbBits);
+		U32 n = lastNonNull;
+
+		while (huffNode[n].nbBits > maxNbBits) {
+			totalCost += baseCost - (1 << (largestBits - huffNode[n].nbBits));
+			huffNode[n].nbBits = (BYTE)maxNbBits;
+			n--;
+		} /* n stops at huffNode[n].nbBits <= maxNbBits */
+		while (huffNode[n].nbBits == maxNbBits)
+			n--; /* n end at index of smallest symbol using < maxNbBits */
+
+		/* renorm totalCost */
+		totalCost >>= (largestBits - maxNbBits); /* note : totalCost is necessarily a multiple of baseCost */
+
+		/* repay normalized cost */
+		{
+			U32 const noSymbol = 0xF0F0F0F0;
+			U32 rankLast[HUF_TABLELOG_MAX + 2];
+			int pos;
+
+			/* Get pos of last (smallest) symbol per rank */
+			memset(rankLast, 0xF0, sizeof(rankLast));
+			{
+				U32 currNbBits = maxNbBits;
+				for (pos = n; pos >= 0; pos--) {
+					if (huffNode[pos].nbBits >= currNbBits)
+						continue;
+					currNbBits = huffNode[pos].nbBits; /* < maxNbBits */
+					rankLast[maxNbBits - currNbBits] = pos;
+				}
+			}
+
+			while (totalCost > 0) {
+				U32 nBitsToDecrease = BIT_highbit32(totalCost) + 1;
+				for (; nBitsToDecrease > 1; nBitsToDecrease--) {
+					U32 highPos = rankLast[nBitsToDecrease];
+					U32 lowPos = rankLast[nBitsToDecrease - 1];
+					if (highPos == noSymbol)
+						continue;
+					if (lowPos == noSymbol)
+						break;
+					{
+						U32 const highTotal = huffNode[highPos].count;
+						U32 const lowTotal = 2 * huffNode[lowPos].count;
+						if (highTotal <= lowTotal)
+							break;
+					}
+				}
+				/* only triggered when no more rank 1 symbol left => find closest one (note : there is necessarily at least one !) */
+				/* HUF_MAX_TABLELOG test just to please gcc 5+; but it should not be necessary */
+				while ((nBitsToDecrease <= HUF_TABLELOG_MAX) && (rankLast[nBitsToDecrease] == noSymbol))
+					nBitsToDecrease++;
+				totalCost -= 1 << (nBitsToDecrease - 1);
+				if (rankLast[nBitsToDecrease - 1] == noSymbol)
+					rankLast[nBitsToDecrease - 1] = rankLast[nBitsToDecrease]; /* this rank is no longer empty */
+				huffNode[rankLast[nBitsToDecrease]].nbBits++;
+				if (rankLast[nBitsToDecrease] == 0) /* special case, reached largest symbol */
+					rankLast[nBitsToDecrease] = noSymbol;
+				else {
+					rankLast[nBitsToDecrease]--;
+					if (huffNode[rankLast[nBitsToDecrease]].nbBits != maxNbBits - nBitsToDecrease)
+						rankLast[nBitsToDecrease] = noSymbol; /* this rank is now empty */
+				}
+			} /* while (totalCost > 0) */
+
+			while (totalCost < 0) {		       /* Sometimes, cost correction overshoot */
+				if (rankLast[1] == noSymbol) { /* special case : no rank 1 symbol (using maxNbBits-1); let's create one from largest rank 0
+								  (using maxNbBits) */
+					while (huffNode[n].nbBits == maxNbBits)
+						n--;
+					huffNode[n + 1].nbBits--;
+					rankLast[1] = n + 1;
+					totalCost++;
+					continue;
+				}
+				huffNode[rankLast[1] + 1].nbBits--;
+				rankLast[1]++;
+				totalCost++;
+			}
+		}
+	} /* there are several too large elements (at least >= 2) */
+
+	return maxNbBits;
+}
+
+typedef struct {
+	U32 base;
+	U32 curr;
+} rankPos;
+
+static void HUF_sort(nodeElt *huffNode, const U32 *count, U32 maxSymbolValue)
+{
+	rankPos rank[32];
+	U32 n;
+
+	memset(rank, 0, sizeof(rank));
+	for (n = 0; n <= maxSymbolValue; n++) {
+		U32 r = BIT_highbit32(count[n] + 1);
+		rank[r].base++;
+	}
+	for (n = 30; n > 0; n--)
+		rank[n - 1].base += rank[n].base;
+	for (n = 0; n < 32; n++)
+		rank[n].curr = rank[n].base;
+	for (n = 0; n <= maxSymbolValue; n++) {
+		U32 const c = count[n];
+		U32 const r = BIT_highbit32(c + 1) + 1;
+		U32 pos = rank[r].curr++;
+		while ((pos > rank[r].base) && (c > huffNode[pos - 1].count))
+			huffNode[pos] = huffNode[pos - 1], pos--;
+		huffNode[pos].count = c;
+		huffNode[pos].byte = (BYTE)n;
+	}
+}
+
+/** HUF_buildCTable_wksp() :
+ *  Same as HUF_buildCTable(), but using externally allocated scratch buffer.
+ *  `workSpace` must be aligned on 4-bytes boundaries, and be at least as large as a table of 1024 unsigned.
+ */
+#define STARTNODE (HUF_SYMBOLVALUE_MAX + 1)
+typedef nodeElt huffNodeTable[2 * HUF_SYMBOLVALUE_MAX + 1 + 1];
+size_t HUF_buildCTable_wksp(HUF_CElt *tree, const U32 *count, U32 maxSymbolValue, U32 maxNbBits, void *workSpace, size_t wkspSize)
+{
+	nodeElt *const huffNode0 = (nodeElt *)workSpace;
+	nodeElt *const huffNode = huffNode0 + 1;
+	U32 n, nonNullRank;
+	int lowS, lowN;
+	U16 nodeNb = STARTNODE;
+	U32 nodeRoot;
+
+	/* safety checks */
+	if (wkspSize < sizeof(huffNodeTable))
+		return ERROR(GENERIC); /* workSpace is not large enough */
+	if (maxNbBits == 0)
+		maxNbBits = HUF_TABLELOG_DEFAULT;
+	if (maxSymbolValue > HUF_SYMBOLVALUE_MAX)
+		return ERROR(GENERIC);
+	memset(huffNode0, 0, sizeof(huffNodeTable));
+
+	/* sort, decreasing order */
+	HUF_sort(huffNode, count, maxSymbolValue);
+
+	/* init for parents */
+	nonNullRank = maxSymbolValue;
+	while (huffNode[nonNullRank].count == 0)
+		nonNullRank--;
+	lowS = nonNullRank;
+	nodeRoot = nodeNb + lowS - 1;
+	lowN = nodeNb;
+	huffNode[nodeNb].count = huffNode[lowS].count + huffNode[lowS - 1].count;
+	huffNode[lowS].parent = huffNode[lowS - 1].parent = nodeNb;
+	nodeNb++;
+	lowS -= 2;
+	for (n = nodeNb; n <= nodeRoot; n++)
+		huffNode[n].count = (U32)(1U << 30);
+	huffNode0[0].count = (U32)(1U << 31); /* fake entry, strong barrier */
+
+	/* create parents */
+	while (nodeNb <= nodeRoot) {
+		U32 n1 = (huffNode[lowS].count < huffNode[lowN].count) ? lowS-- : lowN++;
+		U32 n2 = (huffNode[lowS].count < huffNode[lowN].count) ? lowS-- : lowN++;
+		huffNode[nodeNb].count = huffNode[n1].count + huffNode[n2].count;
+		huffNode[n1].parent = huffNode[n2].parent = nodeNb;
+		nodeNb++;
+	}
+
+	/* distribute weights (unlimited tree height) */
+	huffNode[nodeRoot].nbBits = 0;
+	for (n = nodeRoot - 1; n >= STARTNODE; n--)
+		huffNode[n].nbBits = huffNode[huffNode[n].parent].nbBits + 1;
+	for (n = 0; n <= nonNullRank; n++)
+		huffNode[n].nbBits = huffNode[huffNode[n].parent].nbBits + 1;
+
+	/* enforce maxTableLog */
+	maxNbBits = HUF_setMaxHeight(huffNode, nonNullRank, maxNbBits);
+
+	/* fill result into tree (val, nbBits) */
+	{
+		U16 nbPerRank[HUF_TABLELOG_MAX + 1] = {0};
+		U16 valPerRank[HUF_TABLELOG_MAX + 1] = {0};
+		if (maxNbBits > HUF_TABLELOG_MAX)
+			return ERROR(GENERIC); /* check fit into table */
+		for (n = 0; n <= nonNullRank; n++)
+			nbPerRank[huffNode[n].nbBits]++;
+		/* determine stating value per rank */
+		{
+			U16 min = 0;
+			for (n = maxNbBits; n > 0; n--) {
+				valPerRank[n] = min; /* get starting value within each rank */
+				min += nbPerRank[n];
+				min >>= 1;
+			}
+		}
+		for (n = 0; n <= maxSymbolValue; n++)
+			tree[huffNode[n].byte].nbBits = huffNode[n].nbBits; /* push nbBits per symbol, symbol order */
+		for (n = 0; n <= maxSymbolValue; n++)
+			tree[n].val = valPerRank[tree[n].nbBits]++; /* assign value within rank, symbol order */
+	}
+
+	return maxNbBits;
+}
+
+static size_t HUF_estimateCompressedSize(HUF_CElt *CTable, const unsigned *count, unsigned maxSymbolValue)
+{
+	size_t nbBits = 0;
+	int s;
+	for (s = 0; s <= (int)maxSymbolValue; ++s) {
+		nbBits += CTable[s].nbBits * count[s];
+	}
+	return nbBits >> 3;
+}
+
+static int HUF_validateCTable(const HUF_CElt *CTable, const unsigned *count, unsigned maxSymbolValue)
+{
+	int bad = 0;
+	int s;
+	for (s = 0; s <= (int)maxSymbolValue; ++s) {
+		bad |= (count[s] != 0) & (CTable[s].nbBits == 0);
+	}
+	return !bad;
+}
+
+static void HUF_encodeSymbol(BIT_CStream_t *bitCPtr, U32 symbol, const HUF_CElt *CTable)
+{
+	BIT_addBitsFast(bitCPtr, CTable[symbol].val, CTable[symbol].nbBits);
+}
+
+size_t HUF_compressBound(size_t size) { return HUF_COMPRESSBOUND(size); }
+
+#define HUF_FLUSHBITS(s)  BIT_flushBits(s)
+
+#define HUF_FLUSHBITS_1(stream)                                            \
+	if (sizeof((stream)->bitContainer) * 8 < HUF_TABLELOG_MAX * 2 + 7) \
+	HUF_FLUSHBITS(stream)
+
+#define HUF_FLUSHBITS_2(stream)                                            \
+	if (sizeof((stream)->bitContainer) * 8 < HUF_TABLELOG_MAX * 4 + 7) \
+	HUF_FLUSHBITS(stream)
+
+size_t HUF_compress1X_usingCTable(void *dst, size_t dstSize, const void *src, size_t srcSize, const HUF_CElt *CTable)
+{
+	const BYTE *ip = (const BYTE *)src;
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *const oend = ostart + dstSize;
+	BYTE *op = ostart;
+	size_t n;
+	BIT_CStream_t bitC;
+
+	/* init */
+	if (dstSize < 8)
+		return 0; /* not enough space to compress */
+	{
+		size_t const initErr = BIT_initCStream(&bitC, op, oend - op);
+		if (HUF_isError(initErr))
+			return 0;
+	}
+
+	n = srcSize & ~3; /* join to mod 4 */
+	switch (srcSize & 3) {
+	case 3: HUF_encodeSymbol(&bitC, ip[n + 2], CTable); HUF_FLUSHBITS_2(&bitC);
+	case 2: HUF_encodeSymbol(&bitC, ip[n + 1], CTable); HUF_FLUSHBITS_1(&bitC);
+	case 1: HUF_encodeSymbol(&bitC, ip[n + 0], CTable); HUF_FLUSHBITS(&bitC);
+	case 0:
+	default:;
+	}
+
+	for (; n > 0; n -= 4) { /* note : n&3==0 at this stage */
+		HUF_encodeSymbol(&bitC, ip[n - 1], CTable);
+		HUF_FLUSHBITS_1(&bitC);
+		HUF_encodeSymbol(&bitC, ip[n - 2], CTable);
+		HUF_FLUSHBITS_2(&bitC);
+		HUF_encodeSymbol(&bitC, ip[n - 3], CTable);
+		HUF_FLUSHBITS_1(&bitC);
+		HUF_encodeSymbol(&bitC, ip[n - 4], CTable);
+		HUF_FLUSHBITS(&bitC);
+	}
+
+	return BIT_closeCStream(&bitC);
+}
+
+size_t HUF_compress4X_usingCTable(void *dst, size_t dstSize, const void *src, size_t srcSize, const HUF_CElt *CTable)
+{
+	size_t const segmentSize = (srcSize + 3) / 4; /* first 3 segments */
+	const BYTE *ip = (const BYTE *)src;
+	const BYTE *const iend = ip + srcSize;
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *const oend = ostart + dstSize;
+	BYTE *op = ostart;
+
+	if (dstSize < 6 + 1 + 1 + 1 + 8)
+		return 0; /* minimum space to compress successfully */
+	if (srcSize < 12)
+		return 0; /* no saving possible : too small input */
+	op += 6;	  /* jumpTable */
+
+	{
+		CHECK_V_F(cSize, HUF_compress1X_usingCTable(op, oend - op, ip, segmentSize, CTable));
+		if (cSize == 0)
+			return 0;
+		ZSTD_writeLE16(ostart, (U16)cSize);
+		op += cSize;
+	}
+
+	ip += segmentSize;
+	{
+		CHECK_V_F(cSize, HUF_compress1X_usingCTable(op, oend - op, ip, segmentSize, CTable));
+		if (cSize == 0)
+			return 0;
+		ZSTD_writeLE16(ostart + 2, (U16)cSize);
+		op += cSize;
+	}
+
+	ip += segmentSize;
+	{
+		CHECK_V_F(cSize, HUF_compress1X_usingCTable(op, oend - op, ip, segmentSize, CTable));
+		if (cSize == 0)
+			return 0;
+		ZSTD_writeLE16(ostart + 4, (U16)cSize);
+		op += cSize;
+	}
+
+	ip += segmentSize;
+	{
+		CHECK_V_F(cSize, HUF_compress1X_usingCTable(op, oend - op, ip, iend - ip, CTable));
+		if (cSize == 0)
+			return 0;
+		op += cSize;
+	}
+
+	return op - ostart;
+}
+
+static size_t HUF_compressCTable_internal(BYTE *const ostart, BYTE *op, BYTE *const oend, const void *src, size_t srcSize, unsigned singleStream,
+					  const HUF_CElt *CTable)
+{
+	size_t const cSize =
+	    singleStream ? HUF_compress1X_usingCTable(op, oend - op, src, srcSize, CTable) : HUF_compress4X_usingCTable(op, oend - op, src, srcSize, CTable);
+	if (HUF_isError(cSize)) {
+		return cSize;
+	}
+	if (cSize == 0) {
+		return 0;
+	} /* uncompressible */
+	op += cSize;
+	/* check compressibility */
+	if ((size_t)(op - ostart) >= srcSize - 1) {
+		return 0;
+	}
+	return op - ostart;
+}
+
+/* `workSpace` must a table of at least 1024 unsigned */
+static size_t HUF_compress_internal(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned huffLog,
+				    unsigned singleStream, void *workSpace, size_t wkspSize, HUF_CElt *oldHufTable, HUF_repeat *repeat, int preferRepeat)
+{
+	BYTE *const ostart = (BYTE *)dst;
+	BYTE *const oend = ostart + dstSize;
+	BYTE *op = ostart;
+
+	U32 *count;
+	size_t const countSize = sizeof(U32) * (HUF_SYMBOLVALUE_MAX + 1);
+	HUF_CElt *CTable;
+	size_t const CTableSize = sizeof(HUF_CElt) * (HUF_SYMBOLVALUE_MAX + 1);
+
+	/* checks & inits */
+	if (wkspSize < sizeof(huffNodeTable) + countSize + CTableSize)
+		return ERROR(GENERIC);
+	if (!srcSize)
+		return 0; /* Uncompressed (note : 1 means rle, so first byte must be correct) */
+	if (!dstSize)
+		return 0; /* cannot fit within dst budget */
+	if (srcSize > HUF_BLOCKSIZE_MAX)
+		return ERROR(srcSize_wrong); /* curr block size limit */
+	if (huffLog > HUF_TABLELOG_MAX)
+		return ERROR(tableLog_tooLarge);
+	if (!maxSymbolValue)
+		maxSymbolValue = HUF_SYMBOLVALUE_MAX;
+	if (!huffLog)
+		huffLog = HUF_TABLELOG_DEFAULT;
+
+	count = (U32 *)workSpace;
+	workSpace = (BYTE *)workSpace + countSize;
+	wkspSize -= countSize;
+	CTable = (HUF_CElt *)workSpace;
+	workSpace = (BYTE *)workSpace + CTableSize;
+	wkspSize -= CTableSize;
+
+	/* Heuristic : If we don't need to check the validity of the old table use the old table for small inputs */
+	if (preferRepeat && repeat && *repeat == HUF_repeat_valid) {
+		return HUF_compressCTable_internal(ostart, op, oend, src, srcSize, singleStream, oldHufTable);
+	}
+
+	/* Scan input and build symbol stats */
+	{
+		CHECK_V_F(largest, FSE_count_wksp(count, &maxSymbolValue, (const BYTE *)src, srcSize, (U32 *)workSpace));
+		if (largest == srcSize) {
+			*ostart = ((const BYTE *)src)[0];
+			return 1;
+		} /* single symbol, rle */
+		if (largest <= (srcSize >> 7) + 1)
+			return 0; /* Fast heuristic : not compressible enough */
+	}
+
+	/* Check validity of previous table */
+	if (repeat && *repeat == HUF_repeat_check && !HUF_validateCTable(oldHufTable, count, maxSymbolValue)) {
+		*repeat = HUF_repeat_none;
+	}
+	/* Heuristic : use existing table for small inputs */
+	if (preferRepeat && repeat && *repeat != HUF_repeat_none) {
+		return HUF_compressCTable_internal(ostart, op, oend, src, srcSize, singleStream, oldHufTable);
+	}
+
+	/* Build Huffman Tree */
+	huffLog = HUF_optimalTableLog(huffLog, srcSize, maxSymbolValue);
+	{
+		CHECK_V_F(maxBits, HUF_buildCTable_wksp(CTable, count, maxSymbolValue, huffLog, workSpace, wkspSize));
+		huffLog = (U32)maxBits;
+		/* Zero the unused symbols so we can check it for validity */
+		memset(CTable + maxSymbolValue + 1, 0, CTableSize - (maxSymbolValue + 1) * sizeof(HUF_CElt));
+	}
+
+	/* Write table description header */
+	{
+		CHECK_V_F(hSize, HUF_writeCTable_wksp(op, dstSize, CTable, maxSymbolValue, huffLog, workSpace, wkspSize));
+		/* Check if using the previous table will be beneficial */
+		if (repeat && *repeat != HUF_repeat_none) {
+			size_t const oldSize = HUF_estimateCompressedSize(oldHufTable, count, maxSymbolValue);
+			size_t const newSize = HUF_estimateCompressedSize(CTable, count, maxSymbolValue);
+			if (oldSize <= hSize + newSize || hSize + 12 >= srcSize) {
+				return HUF_compressCTable_internal(ostart, op, oend, src, srcSize, singleStream, oldHufTable);
+			}
+		}
+		/* Use the new table */
+		if (hSize + 12ul >= srcSize) {
+			return 0;
+		}
+		op += hSize;
+		if (repeat) {
+			*repeat = HUF_repeat_none;
+		}
+		if (oldHufTable) {
+			memcpy(oldHufTable, CTable, CTableSize);
+		} /* Save the new table */
+	}
+	return HUF_compressCTable_internal(ostart, op, oend, src, srcSize, singleStream, CTable);
+}
+
+size_t HUF_compress1X_wksp(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned huffLog, void *workSpace,
+			   size_t wkspSize)
+{
+	return HUF_compress_internal(dst, dstSize, src, srcSize, maxSymbolValue, huffLog, 1 /* single stream */, workSpace, wkspSize, NULL, NULL, 0);
+}
+
+size_t HUF_compress1X_repeat(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned huffLog, void *workSpace,
+			     size_t wkspSize, HUF_CElt *hufTable, HUF_repeat *repeat, int preferRepeat)
+{
+	return HUF_compress_internal(dst, dstSize, src, srcSize, maxSymbolValue, huffLog, 1 /* single stream */, workSpace, wkspSize, hufTable, repeat,
+				     preferRepeat);
+}
+
+size_t HUF_compress4X_wksp(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned huffLog, void *workSpace,
+			   size_t wkspSize)
+{
+	return HUF_compress_internal(dst, dstSize, src, srcSize, maxSymbolValue, huffLog, 0 /* 4 streams */, workSpace, wkspSize, NULL, NULL, 0);
+}
+
+size_t HUF_compress4X_repeat(void *dst, size_t dstSize, const void *src, size_t srcSize, unsigned maxSymbolValue, unsigned huffLog, void *workSpace,
+			     size_t wkspSize, HUF_CElt *hufTable, HUF_repeat *repeat, int preferRepeat)
+{
+	return HUF_compress_internal(dst, dstSize, src, srcSize, maxSymbolValue, huffLog, 0 /* 4 streams */, workSpace, wkspSize, hufTable, repeat,
+				     preferRepeat);
+}
diff --git a/lib/zstd/huf_decompress.c b/lib/zstd/huf_decompress.c
new file mode 100644
index 000000000000..6526482047dc
--- /dev/null
+++ b/lib/zstd/huf_decompress.c
@@ -0,0 +1,960 @@
+/*
+ * Huffman decoder, part of New Generation Entropy library
+ * Copyright (C) 2013-2016, Yann Collet.
+ *
+ * BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ *
+ * You can contact the author at :
+ * - Source repository : https://github.com/Cyan4973/FiniteStateEntropy
+ */
+
+/* **************************************************************
+*  Compiler specifics
+****************************************************************/
+#define FORCE_INLINE static __always_inline
+
+/* **************************************************************
+*  Dependencies
+****************************************************************/
+#include "bitstream.h" /* BIT_* */
+#include "fse.h"       /* header compression */
+#include "huf.h"
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/string.h> /* memcpy, memset */
+
+/* **************************************************************
+*  Error Management
+****************************************************************/
+#define HUF_STATIC_ASSERT(c)                                   \
+	{                                                      \
+		enum { HUF_static_assert = 1 / (int)(!!(c)) }; \
+	} /* use only *after* variable declarations */
+
+/*-***************************/
+/*  generic DTableDesc       */
+/*-***************************/
+
+typedef struct {
+	BYTE maxTableLog;
+	BYTE tableType;
+	BYTE tableLog;
+	BYTE reserved;
+} DTableDesc;
+
+static DTableDesc HUF_getDTableDesc(const HUF_DTable *table)
+{
+	DTableDesc dtd;
+	memcpy(&dtd, table, sizeof(dtd));
+	return dtd;
+}
+
+/*-***************************/
+/*  single-symbol decoding   */
+/*-***************************/
+
+typedef struct {
+	BYTE byte;
+	BYTE nbBits;
+} HUF_DEltX2; /* single-symbol decoding */
+
+size_t HUF_readDTableX2_wksp(HUF_DTable *DTable, const void *src, size_t srcSize, void *workspace, size_t workspaceSize)
+{
+	U32 tableLog = 0;
+	U32 nbSymbols = 0;
+	size_t iSize;
+	void *const dtPtr = DTable + 1;
+	HUF_DEltX2 *const dt = (HUF_DEltX2 *)dtPtr;
+
+	U32 *rankVal;
+	BYTE *huffWeight;
+	size_t spaceUsed32 = 0;
+
+	rankVal = (U32 *)workspace + spaceUsed32;
+	spaceUsed32 += HUF_TABLELOG_ABSOLUTEMAX + 1;
+	huffWeight = (BYTE *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(HUF_SYMBOLVALUE_MAX + 1, sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	HUF_STATIC_ASSERT(sizeof(DTableDesc) == sizeof(HUF_DTable));
+	/* memset(huffWeight, 0, sizeof(huffWeight)); */ /* is not necessary, even though some analyzer complain ... */
+
+	iSize = HUF_readStats_wksp(huffWeight, HUF_SYMBOLVALUE_MAX + 1, rankVal, &nbSymbols, &tableLog, src, srcSize, workspace, workspaceSize);
+	if (HUF_isError(iSize))
+		return iSize;
+
+	/* Table header */
+	{
+		DTableDesc dtd = HUF_getDTableDesc(DTable);
+		if (tableLog > (U32)(dtd.maxTableLog + 1))
+			return ERROR(tableLog_tooLarge); /* DTable too small, Huffman tree cannot fit in */
+		dtd.tableType = 0;
+		dtd.tableLog = (BYTE)tableLog;
+		memcpy(DTable, &dtd, sizeof(dtd));
+	}
+
+	/* Calculate starting value for each rank */
+	{
+		U32 n, nextRankStart = 0;
+		for (n = 1; n < tableLog + 1; n++) {
+			U32 const curr = nextRankStart;
+			nextRankStart += (rankVal[n] << (n - 1));
+			rankVal[n] = curr;
+		}
+	}
+
+	/* fill DTable */
+	{
+		U32 n;
+		for (n = 0; n < nbSymbols; n++) {
+			U32 const w = huffWeight[n];
+			U32 const length = (1 << w) >> 1;
+			U32 u;
+			HUF_DEltX2 D;
+			D.byte = (BYTE)n;
+			D.nbBits = (BYTE)(tableLog + 1 - w);
+			for (u = rankVal[w]; u < rankVal[w] + length; u++)
+				dt[u] = D;
+			rankVal[w] += length;
+		}
+	}
+
+	return iSize;
+}
+
+static BYTE HUF_decodeSymbolX2(BIT_DStream_t *Dstream, const HUF_DEltX2 *dt, const U32 dtLog)
+{
+	size_t const val = BIT_lookBitsFast(Dstream, dtLog); /* note : dtLog >= 1 */
+	BYTE const c = dt[val].byte;
+	BIT_skipBits(Dstream, dt[val].nbBits);
+	return c;
+}
+
+#define HUF_DECODE_SYMBOLX2_0(ptr, DStreamPtr) *ptr++ = HUF_decodeSymbolX2(DStreamPtr, dt, dtLog)
+
+#define HUF_DECODE_SYMBOLX2_1(ptr, DStreamPtr)         \
+	if (ZSTD_64bits() || (HUF_TABLELOG_MAX <= 12)) \
+	HUF_DECODE_SYMBOLX2_0(ptr, DStreamPtr)
+
+#define HUF_DECODE_SYMBOLX2_2(ptr, DStreamPtr) \
+	if (ZSTD_64bits())                     \
+	HUF_DECODE_SYMBOLX2_0(ptr, DStreamPtr)
+
+FORCE_INLINE size_t HUF_decodeStreamX2(BYTE *p, BIT_DStream_t *const bitDPtr, BYTE *const pEnd, const HUF_DEltX2 *const dt, const U32 dtLog)
+{
+	BYTE *const pStart = p;
+
+	/* up to 4 symbols at a time */
+	while ((BIT_reloadDStream(bitDPtr) == BIT_DStream_unfinished) && (p <= pEnd - 4)) {
+		HUF_DECODE_SYMBOLX2_2(p, bitDPtr);
+		HUF_DECODE_SYMBOLX2_1(p, bitDPtr);
+		HUF_DECODE_SYMBOLX2_2(p, bitDPtr);
+		HUF_DECODE_SYMBOLX2_0(p, bitDPtr);
+	}
+
+	/* closer to the end */
+	while ((BIT_reloadDStream(bitDPtr) == BIT_DStream_unfinished) && (p < pEnd))
+		HUF_DECODE_SYMBOLX2_0(p, bitDPtr);
+
+	/* no more data to retrieve from bitstream, hence no need to reload */
+	while (p < pEnd)
+		HUF_DECODE_SYMBOLX2_0(p, bitDPtr);
+
+	return pEnd - pStart;
+}
+
+static size_t HUF_decompress1X2_usingDTable_internal(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	BYTE *op = (BYTE *)dst;
+	BYTE *const oend = op + dstSize;
+	const void *dtPtr = DTable + 1;
+	const HUF_DEltX2 *const dt = (const HUF_DEltX2 *)dtPtr;
+	BIT_DStream_t bitD;
+	DTableDesc const dtd = HUF_getDTableDesc(DTable);
+	U32 const dtLog = dtd.tableLog;
+
+	{
+		size_t const errorCode = BIT_initDStream(&bitD, cSrc, cSrcSize);
+		if (HUF_isError(errorCode))
+			return errorCode;
+	}
+
+	HUF_decodeStreamX2(op, &bitD, oend, dt, dtLog);
+
+	/* check */
+	if (!BIT_endOfDStream(&bitD))
+		return ERROR(corruption_detected);
+
+	return dstSize;
+}
+
+size_t HUF_decompress1X2_usingDTable(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	DTableDesc dtd = HUF_getDTableDesc(DTable);
+	if (dtd.tableType != 0)
+		return ERROR(GENERIC);
+	return HUF_decompress1X2_usingDTable_internal(dst, dstSize, cSrc, cSrcSize, DTable);
+}
+
+size_t HUF_decompress1X2_DCtx_wksp(HUF_DTable *DCtx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	const BYTE *ip = (const BYTE *)cSrc;
+
+	size_t const hSize = HUF_readDTableX2_wksp(DCtx, cSrc, cSrcSize, workspace, workspaceSize);
+	if (HUF_isError(hSize))
+		return hSize;
+	if (hSize >= cSrcSize)
+		return ERROR(srcSize_wrong);
+	ip += hSize;
+	cSrcSize -= hSize;
+
+	return HUF_decompress1X2_usingDTable_internal(dst, dstSize, ip, cSrcSize, DCtx);
+}
+
+static size_t HUF_decompress4X2_usingDTable_internal(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	/* Check */
+	if (cSrcSize < 10)
+		return ERROR(corruption_detected); /* strict minimum : jump table + 1 byte per stream */
+
+	{
+		const BYTE *const istart = (const BYTE *)cSrc;
+		BYTE *const ostart = (BYTE *)dst;
+		BYTE *const oend = ostart + dstSize;
+		const void *const dtPtr = DTable + 1;
+		const HUF_DEltX2 *const dt = (const HUF_DEltX2 *)dtPtr;
+
+		/* Init */
+		BIT_DStream_t bitD1;
+		BIT_DStream_t bitD2;
+		BIT_DStream_t bitD3;
+		BIT_DStream_t bitD4;
+		size_t const length1 = ZSTD_readLE16(istart);
+		size_t const length2 = ZSTD_readLE16(istart + 2);
+		size_t const length3 = ZSTD_readLE16(istart + 4);
+		size_t const length4 = cSrcSize - (length1 + length2 + length3 + 6);
+		const BYTE *const istart1 = istart + 6; /* jumpTable */
+		const BYTE *const istart2 = istart1 + length1;
+		const BYTE *const istart3 = istart2 + length2;
+		const BYTE *const istart4 = istart3 + length3;
+		const size_t segmentSize = (dstSize + 3) / 4;
+		BYTE *const opStart2 = ostart + segmentSize;
+		BYTE *const opStart3 = opStart2 + segmentSize;
+		BYTE *const opStart4 = opStart3 + segmentSize;
+		BYTE *op1 = ostart;
+		BYTE *op2 = opStart2;
+		BYTE *op3 = opStart3;
+		BYTE *op4 = opStart4;
+		U32 endSignal;
+		DTableDesc const dtd = HUF_getDTableDesc(DTable);
+		U32 const dtLog = dtd.tableLog;
+
+		if (length4 > cSrcSize)
+			return ERROR(corruption_detected); /* overflow */
+		{
+			size_t const errorCode = BIT_initDStream(&bitD1, istart1, length1);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+		{
+			size_t const errorCode = BIT_initDStream(&bitD2, istart2, length2);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+		{
+			size_t const errorCode = BIT_initDStream(&bitD3, istart3, length3);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+		{
+			size_t const errorCode = BIT_initDStream(&bitD4, istart4, length4);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+
+		/* 16-32 symbols per loop (4-8 symbols per stream) */
+		endSignal = BIT_reloadDStream(&bitD1) | BIT_reloadDStream(&bitD2) | BIT_reloadDStream(&bitD3) | BIT_reloadDStream(&bitD4);
+		for (; (endSignal == BIT_DStream_unfinished) && (op4 < (oend - 7));) {
+			HUF_DECODE_SYMBOLX2_2(op1, &bitD1);
+			HUF_DECODE_SYMBOLX2_2(op2, &bitD2);
+			HUF_DECODE_SYMBOLX2_2(op3, &bitD3);
+			HUF_DECODE_SYMBOLX2_2(op4, &bitD4);
+			HUF_DECODE_SYMBOLX2_1(op1, &bitD1);
+			HUF_DECODE_SYMBOLX2_1(op2, &bitD2);
+			HUF_DECODE_SYMBOLX2_1(op3, &bitD3);
+			HUF_DECODE_SYMBOLX2_1(op4, &bitD4);
+			HUF_DECODE_SYMBOLX2_2(op1, &bitD1);
+			HUF_DECODE_SYMBOLX2_2(op2, &bitD2);
+			HUF_DECODE_SYMBOLX2_2(op3, &bitD3);
+			HUF_DECODE_SYMBOLX2_2(op4, &bitD4);
+			HUF_DECODE_SYMBOLX2_0(op1, &bitD1);
+			HUF_DECODE_SYMBOLX2_0(op2, &bitD2);
+			HUF_DECODE_SYMBOLX2_0(op3, &bitD3);
+			HUF_DECODE_SYMBOLX2_0(op4, &bitD4);
+			endSignal = BIT_reloadDStream(&bitD1) | BIT_reloadDStream(&bitD2) | BIT_reloadDStream(&bitD3) | BIT_reloadDStream(&bitD4);
+		}
+
+		/* check corruption */
+		if (op1 > opStart2)
+			return ERROR(corruption_detected);
+		if (op2 > opStart3)
+			return ERROR(corruption_detected);
+		if (op3 > opStart4)
+			return ERROR(corruption_detected);
+		/* note : op4 supposed already verified within main loop */
+
+		/* finish bitStreams one by one */
+		HUF_decodeStreamX2(op1, &bitD1, opStart2, dt, dtLog);
+		HUF_decodeStreamX2(op2, &bitD2, opStart3, dt, dtLog);
+		HUF_decodeStreamX2(op3, &bitD3, opStart4, dt, dtLog);
+		HUF_decodeStreamX2(op4, &bitD4, oend, dt, dtLog);
+
+		/* check */
+		endSignal = BIT_endOfDStream(&bitD1) & BIT_endOfDStream(&bitD2) & BIT_endOfDStream(&bitD3) & BIT_endOfDStream(&bitD4);
+		if (!endSignal)
+			return ERROR(corruption_detected);
+
+		/* decoded size */
+		return dstSize;
+	}
+}
+
+size_t HUF_decompress4X2_usingDTable(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	DTableDesc dtd = HUF_getDTableDesc(DTable);
+	if (dtd.tableType != 0)
+		return ERROR(GENERIC);
+	return HUF_decompress4X2_usingDTable_internal(dst, dstSize, cSrc, cSrcSize, DTable);
+}
+
+size_t HUF_decompress4X2_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	const BYTE *ip = (const BYTE *)cSrc;
+
+	size_t const hSize = HUF_readDTableX2_wksp(dctx, cSrc, cSrcSize, workspace, workspaceSize);
+	if (HUF_isError(hSize))
+		return hSize;
+	if (hSize >= cSrcSize)
+		return ERROR(srcSize_wrong);
+	ip += hSize;
+	cSrcSize -= hSize;
+
+	return HUF_decompress4X2_usingDTable_internal(dst, dstSize, ip, cSrcSize, dctx);
+}
+
+/* *************************/
+/* double-symbols decoding */
+/* *************************/
+typedef struct {
+	U16 sequence;
+	BYTE nbBits;
+	BYTE length;
+} HUF_DEltX4; /* double-symbols decoding */
+
+typedef struct {
+	BYTE symbol;
+	BYTE weight;
+} sortedSymbol_t;
+
+/* HUF_fillDTableX4Level2() :
+ * `rankValOrigin` must be a table of at least (HUF_TABLELOG_MAX + 1) U32 */
+static void HUF_fillDTableX4Level2(HUF_DEltX4 *DTable, U32 sizeLog, const U32 consumed, const U32 *rankValOrigin, const int minWeight,
+				   const sortedSymbol_t *sortedSymbols, const U32 sortedListSize, U32 nbBitsBaseline, U16 baseSeq)
+{
+	HUF_DEltX4 DElt;
+	U32 rankVal[HUF_TABLELOG_MAX + 1];
+
+	/* get pre-calculated rankVal */
+	memcpy(rankVal, rankValOrigin, sizeof(rankVal));
+
+	/* fill skipped values */
+	if (minWeight > 1) {
+		U32 i, skipSize = rankVal[minWeight];
+		ZSTD_writeLE16(&(DElt.sequence), baseSeq);
+		DElt.nbBits = (BYTE)(consumed);
+		DElt.length = 1;
+		for (i = 0; i < skipSize; i++)
+			DTable[i] = DElt;
+	}
+
+	/* fill DTable */
+	{
+		U32 s;
+		for (s = 0; s < sortedListSize; s++) { /* note : sortedSymbols already skipped */
+			const U32 symbol = sortedSymbols[s].symbol;
+			const U32 weight = sortedSymbols[s].weight;
+			const U32 nbBits = nbBitsBaseline - weight;
+			const U32 length = 1 << (sizeLog - nbBits);
+			const U32 start = rankVal[weight];
+			U32 i = start;
+			const U32 end = start + length;
+
+			ZSTD_writeLE16(&(DElt.sequence), (U16)(baseSeq + (symbol << 8)));
+			DElt.nbBits = (BYTE)(nbBits + consumed);
+			DElt.length = 2;
+			do {
+				DTable[i++] = DElt;
+			} while (i < end); /* since length >= 1 */
+
+			rankVal[weight] += length;
+		}
+	}
+}
+
+typedef U32 rankVal_t[HUF_TABLELOG_MAX][HUF_TABLELOG_MAX + 1];
+typedef U32 rankValCol_t[HUF_TABLELOG_MAX + 1];
+
+static void HUF_fillDTableX4(HUF_DEltX4 *DTable, const U32 targetLog, const sortedSymbol_t *sortedList, const U32 sortedListSize, const U32 *rankStart,
+			     rankVal_t rankValOrigin, const U32 maxWeight, const U32 nbBitsBaseline)
+{
+	U32 rankVal[HUF_TABLELOG_MAX + 1];
+	const int scaleLog = nbBitsBaseline - targetLog; /* note : targetLog >= srcLog, hence scaleLog <= 1 */
+	const U32 minBits = nbBitsBaseline - maxWeight;
+	U32 s;
+
+	memcpy(rankVal, rankValOrigin, sizeof(rankVal));
+
+	/* fill DTable */
+	for (s = 0; s < sortedListSize; s++) {
+		const U16 symbol = sortedList[s].symbol;
+		const U32 weight = sortedList[s].weight;
+		const U32 nbBits = nbBitsBaseline - weight;
+		const U32 start = rankVal[weight];
+		const U32 length = 1 << (targetLog - nbBits);
+
+		if (targetLog - nbBits >= minBits) { /* enough room for a second symbol */
+			U32 sortedRank;
+			int minWeight = nbBits + scaleLog;
+			if (minWeight < 1)
+				minWeight = 1;
+			sortedRank = rankStart[minWeight];
+			HUF_fillDTableX4Level2(DTable + start, targetLog - nbBits, nbBits, rankValOrigin[nbBits], minWeight, sortedList + sortedRank,
+					       sortedListSize - sortedRank, nbBitsBaseline, symbol);
+		} else {
+			HUF_DEltX4 DElt;
+			ZSTD_writeLE16(&(DElt.sequence), symbol);
+			DElt.nbBits = (BYTE)(nbBits);
+			DElt.length = 1;
+			{
+				U32 const end = start + length;
+				U32 u;
+				for (u = start; u < end; u++)
+					DTable[u] = DElt;
+			}
+		}
+		rankVal[weight] += length;
+	}
+}
+
+size_t HUF_readDTableX4_wksp(HUF_DTable *DTable, const void *src, size_t srcSize, void *workspace, size_t workspaceSize)
+{
+	U32 tableLog, maxW, sizeOfSort, nbSymbols;
+	DTableDesc dtd = HUF_getDTableDesc(DTable);
+	U32 const maxTableLog = dtd.maxTableLog;
+	size_t iSize;
+	void *dtPtr = DTable + 1; /* force compiler to avoid strict-aliasing */
+	HUF_DEltX4 *const dt = (HUF_DEltX4 *)dtPtr;
+	U32 *rankStart;
+
+	rankValCol_t *rankVal;
+	U32 *rankStats;
+	U32 *rankStart0;
+	sortedSymbol_t *sortedSymbol;
+	BYTE *weightList;
+	size_t spaceUsed32 = 0;
+
+	HUF_STATIC_ASSERT((sizeof(rankValCol_t) & 3) == 0);
+
+	rankVal = (rankValCol_t *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += (sizeof(rankValCol_t) * HUF_TABLELOG_MAX) >> 2;
+	rankStats = (U32 *)workspace + spaceUsed32;
+	spaceUsed32 += HUF_TABLELOG_MAX + 1;
+	rankStart0 = (U32 *)workspace + spaceUsed32;
+	spaceUsed32 += HUF_TABLELOG_MAX + 2;
+	sortedSymbol = (sortedSymbol_t *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(sizeof(sortedSymbol_t) * (HUF_SYMBOLVALUE_MAX + 1), sizeof(U32)) >> 2;
+	weightList = (BYTE *)((U32 *)workspace + spaceUsed32);
+	spaceUsed32 += ALIGN(HUF_SYMBOLVALUE_MAX + 1, sizeof(U32)) >> 2;
+
+	if ((spaceUsed32 << 2) > workspaceSize)
+		return ERROR(tableLog_tooLarge);
+	workspace = (U32 *)workspace + spaceUsed32;
+	workspaceSize -= (spaceUsed32 << 2);
+
+	rankStart = rankStart0 + 1;
+	memset(rankStats, 0, sizeof(U32) * (2 * HUF_TABLELOG_MAX + 2 + 1));
+
+	HUF_STATIC_ASSERT(sizeof(HUF_DEltX4) == sizeof(HUF_DTable)); /* if compiler fails here, assertion is wrong */
+	if (maxTableLog > HUF_TABLELOG_MAX)
+		return ERROR(tableLog_tooLarge);
+	/* memset(weightList, 0, sizeof(weightList)); */ /* is not necessary, even though some analyzer complain ... */
+
+	iSize = HUF_readStats_wksp(weightList, HUF_SYMBOLVALUE_MAX + 1, rankStats, &nbSymbols, &tableLog, src, srcSize, workspace, workspaceSize);
+	if (HUF_isError(iSize))
+		return iSize;
+
+	/* check result */
+	if (tableLog > maxTableLog)
+		return ERROR(tableLog_tooLarge); /* DTable can't fit code depth */
+
+	/* find maxWeight */
+	for (maxW = tableLog; rankStats[maxW] == 0; maxW--) {
+	} /* necessarily finds a solution before 0 */
+
+	/* Get start index of each weight */
+	{
+		U32 w, nextRankStart = 0;
+		for (w = 1; w < maxW + 1; w++) {
+			U32 curr = nextRankStart;
+			nextRankStart += rankStats[w];
+			rankStart[w] = curr;
+		}
+		rankStart[0] = nextRankStart; /* put all 0w symbols at the end of sorted list*/
+		sizeOfSort = nextRankStart;
+	}
+
+	/* sort symbols by weight */
+	{
+		U32 s;
+		for (s = 0; s < nbSymbols; s++) {
+			U32 const w = weightList[s];
+			U32 const r = rankStart[w]++;
+			sortedSymbol[r].symbol = (BYTE)s;
+			sortedSymbol[r].weight = (BYTE)w;
+		}
+		rankStart[0] = 0; /* forget 0w symbols; this is beginning of weight(1) */
+	}
+
+	/* Build rankVal */
+	{
+		U32 *const rankVal0 = rankVal[0];
+		{
+			int const rescale = (maxTableLog - tableLog) - 1; /* tableLog <= maxTableLog */
+			U32 nextRankVal = 0;
+			U32 w;
+			for (w = 1; w < maxW + 1; w++) {
+				U32 curr = nextRankVal;
+				nextRankVal += rankStats[w] << (w + rescale);
+				rankVal0[w] = curr;
+			}
+		}
+		{
+			U32 const minBits = tableLog + 1 - maxW;
+			U32 consumed;
+			for (consumed = minBits; consumed < maxTableLog - minBits + 1; consumed++) {
+				U32 *const rankValPtr = rankVal[consumed];
+				U32 w;
+				for (w = 1; w < maxW + 1; w++) {
+					rankValPtr[w] = rankVal0[w] >> consumed;
+				}
+			}
+		}
+	}
+
+	HUF_fillDTableX4(dt, maxTableLog, sortedSymbol, sizeOfSort, rankStart0, rankVal, maxW, tableLog + 1);
+
+	dtd.tableLog = (BYTE)maxTableLog;
+	dtd.tableType = 1;
+	memcpy(DTable, &dtd, sizeof(dtd));
+	return iSize;
+}
+
+static U32 HUF_decodeSymbolX4(void *op, BIT_DStream_t *DStream, const HUF_DEltX4 *dt, const U32 dtLog)
+{
+	size_t const val = BIT_lookBitsFast(DStream, dtLog); /* note : dtLog >= 1 */
+	memcpy(op, dt + val, 2);
+	BIT_skipBits(DStream, dt[val].nbBits);
+	return dt[val].length;
+}
+
+static U32 HUF_decodeLastSymbolX4(void *op, BIT_DStream_t *DStream, const HUF_DEltX4 *dt, const U32 dtLog)
+{
+	size_t const val = BIT_lookBitsFast(DStream, dtLog); /* note : dtLog >= 1 */
+	memcpy(op, dt + val, 1);
+	if (dt[val].length == 1)
+		BIT_skipBits(DStream, dt[val].nbBits);
+	else {
+		if (DStream->bitsConsumed < (sizeof(DStream->bitContainer) * 8)) {
+			BIT_skipBits(DStream, dt[val].nbBits);
+			if (DStream->bitsConsumed > (sizeof(DStream->bitContainer) * 8))
+				/* ugly hack; works only because it's the last symbol. Note : can't easily extract nbBits from just this symbol */
+				DStream->bitsConsumed = (sizeof(DStream->bitContainer) * 8);
+		}
+	}
+	return 1;
+}
+
+#define HUF_DECODE_SYMBOLX4_0(ptr, DStreamPtr) ptr += HUF_decodeSymbolX4(ptr, DStreamPtr, dt, dtLog)
+
+#define HUF_DECODE_SYMBOLX4_1(ptr, DStreamPtr)         \
+	if (ZSTD_64bits() || (HUF_TABLELOG_MAX <= 12)) \
+	ptr += HUF_decodeSymbolX4(ptr, DStreamPtr, dt, dtLog)
+
+#define HUF_DECODE_SYMBOLX4_2(ptr, DStreamPtr) \
+	if (ZSTD_64bits())                     \
+	ptr += HUF_decodeSymbolX4(ptr, DStreamPtr, dt, dtLog)
+
+FORCE_INLINE size_t HUF_decodeStreamX4(BYTE *p, BIT_DStream_t *bitDPtr, BYTE *const pEnd, const HUF_DEltX4 *const dt, const U32 dtLog)
+{
+	BYTE *const pStart = p;
+
+	/* up to 8 symbols at a time */
+	while ((BIT_reloadDStream(bitDPtr) == BIT_DStream_unfinished) & (p < pEnd - (sizeof(bitDPtr->bitContainer) - 1))) {
+		HUF_DECODE_SYMBOLX4_2(p, bitDPtr);
+		HUF_DECODE_SYMBOLX4_1(p, bitDPtr);
+		HUF_DECODE_SYMBOLX4_2(p, bitDPtr);
+		HUF_DECODE_SYMBOLX4_0(p, bitDPtr);
+	}
+
+	/* closer to end : up to 2 symbols at a time */
+	while ((BIT_reloadDStream(bitDPtr) == BIT_DStream_unfinished) & (p <= pEnd - 2))
+		HUF_DECODE_SYMBOLX4_0(p, bitDPtr);
+
+	while (p <= pEnd - 2)
+		HUF_DECODE_SYMBOLX4_0(p, bitDPtr); /* no need to reload : reached the end of DStream */
+
+	if (p < pEnd)
+		p += HUF_decodeLastSymbolX4(p, bitDPtr, dt, dtLog);
+
+	return p - pStart;
+}
+
+static size_t HUF_decompress1X4_usingDTable_internal(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	BIT_DStream_t bitD;
+
+	/* Init */
+	{
+		size_t const errorCode = BIT_initDStream(&bitD, cSrc, cSrcSize);
+		if (HUF_isError(errorCode))
+			return errorCode;
+	}
+
+	/* decode */
+	{
+		BYTE *const ostart = (BYTE *)dst;
+		BYTE *const oend = ostart + dstSize;
+		const void *const dtPtr = DTable + 1; /* force compiler to not use strict-aliasing */
+		const HUF_DEltX4 *const dt = (const HUF_DEltX4 *)dtPtr;
+		DTableDesc const dtd = HUF_getDTableDesc(DTable);
+		HUF_decodeStreamX4(ostart, &bitD, oend, dt, dtd.tableLog);
+	}
+
+	/* check */
+	if (!BIT_endOfDStream(&bitD))
+		return ERROR(corruption_detected);
+
+	/* decoded size */
+	return dstSize;
+}
+
+size_t HUF_decompress1X4_usingDTable(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	DTableDesc dtd = HUF_getDTableDesc(DTable);
+	if (dtd.tableType != 1)
+		return ERROR(GENERIC);
+	return HUF_decompress1X4_usingDTable_internal(dst, dstSize, cSrc, cSrcSize, DTable);
+}
+
+size_t HUF_decompress1X4_DCtx_wksp(HUF_DTable *DCtx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	const BYTE *ip = (const BYTE *)cSrc;
+
+	size_t const hSize = HUF_readDTableX4_wksp(DCtx, cSrc, cSrcSize, workspace, workspaceSize);
+	if (HUF_isError(hSize))
+		return hSize;
+	if (hSize >= cSrcSize)
+		return ERROR(srcSize_wrong);
+	ip += hSize;
+	cSrcSize -= hSize;
+
+	return HUF_decompress1X4_usingDTable_internal(dst, dstSize, ip, cSrcSize, DCtx);
+}
+
+static size_t HUF_decompress4X4_usingDTable_internal(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	if (cSrcSize < 10)
+		return ERROR(corruption_detected); /* strict minimum : jump table + 1 byte per stream */
+
+	{
+		const BYTE *const istart = (const BYTE *)cSrc;
+		BYTE *const ostart = (BYTE *)dst;
+		BYTE *const oend = ostart + dstSize;
+		const void *const dtPtr = DTable + 1;
+		const HUF_DEltX4 *const dt = (const HUF_DEltX4 *)dtPtr;
+
+		/* Init */
+		BIT_DStream_t bitD1;
+		BIT_DStream_t bitD2;
+		BIT_DStream_t bitD3;
+		BIT_DStream_t bitD4;
+		size_t const length1 = ZSTD_readLE16(istart);
+		size_t const length2 = ZSTD_readLE16(istart + 2);
+		size_t const length3 = ZSTD_readLE16(istart + 4);
+		size_t const length4 = cSrcSize - (length1 + length2 + length3 + 6);
+		const BYTE *const istart1 = istart + 6; /* jumpTable */
+		const BYTE *const istart2 = istart1 + length1;
+		const BYTE *const istart3 = istart2 + length2;
+		const BYTE *const istart4 = istart3 + length3;
+		size_t const segmentSize = (dstSize + 3) / 4;
+		BYTE *const opStart2 = ostart + segmentSize;
+		BYTE *const opStart3 = opStart2 + segmentSize;
+		BYTE *const opStart4 = opStart3 + segmentSize;
+		BYTE *op1 = ostart;
+		BYTE *op2 = opStart2;
+		BYTE *op3 = opStart3;
+		BYTE *op4 = opStart4;
+		U32 endSignal;
+		DTableDesc const dtd = HUF_getDTableDesc(DTable);
+		U32 const dtLog = dtd.tableLog;
+
+		if (length4 > cSrcSize)
+			return ERROR(corruption_detected); /* overflow */
+		{
+			size_t const errorCode = BIT_initDStream(&bitD1, istart1, length1);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+		{
+			size_t const errorCode = BIT_initDStream(&bitD2, istart2, length2);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+		{
+			size_t const errorCode = BIT_initDStream(&bitD3, istart3, length3);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+		{
+			size_t const errorCode = BIT_initDStream(&bitD4, istart4, length4);
+			if (HUF_isError(errorCode))
+				return errorCode;
+		}
+
+		/* 16-32 symbols per loop (4-8 symbols per stream) */
+		endSignal = BIT_reloadDStream(&bitD1) | BIT_reloadDStream(&bitD2) | BIT_reloadDStream(&bitD3) | BIT_reloadDStream(&bitD4);
+		for (; (endSignal == BIT_DStream_unfinished) & (op4 < (oend - (sizeof(bitD4.bitContainer) - 1)));) {
+			HUF_DECODE_SYMBOLX4_2(op1, &bitD1);
+			HUF_DECODE_SYMBOLX4_2(op2, &bitD2);
+			HUF_DECODE_SYMBOLX4_2(op3, &bitD3);
+			HUF_DECODE_SYMBOLX4_2(op4, &bitD4);
+			HUF_DECODE_SYMBOLX4_1(op1, &bitD1);
+			HUF_DECODE_SYMBOLX4_1(op2, &bitD2);
+			HUF_DECODE_SYMBOLX4_1(op3, &bitD3);
+			HUF_DECODE_SYMBOLX4_1(op4, &bitD4);
+			HUF_DECODE_SYMBOLX4_2(op1, &bitD1);
+			HUF_DECODE_SYMBOLX4_2(op2, &bitD2);
+			HUF_DECODE_SYMBOLX4_2(op3, &bitD3);
+			HUF_DECODE_SYMBOLX4_2(op4, &bitD4);
+			HUF_DECODE_SYMBOLX4_0(op1, &bitD1);
+			HUF_DECODE_SYMBOLX4_0(op2, &bitD2);
+			HUF_DECODE_SYMBOLX4_0(op3, &bitD3);
+			HUF_DECODE_SYMBOLX4_0(op4, &bitD4);
+
+			endSignal = BIT_reloadDStream(&bitD1) | BIT_reloadDStream(&bitD2) | BIT_reloadDStream(&bitD3) | BIT_reloadDStream(&bitD4);
+		}
+
+		/* check corruption */
+		if (op1 > opStart2)
+			return ERROR(corruption_detected);
+		if (op2 > opStart3)
+			return ERROR(corruption_detected);
+		if (op3 > opStart4)
+			return ERROR(corruption_detected);
+		/* note : op4 already verified within main loop */
+
+		/* finish bitStreams one by one */
+		HUF_decodeStreamX4(op1, &bitD1, opStart2, dt, dtLog);
+		HUF_decodeStreamX4(op2, &bitD2, opStart3, dt, dtLog);
+		HUF_decodeStreamX4(op3, &bitD3, opStart4, dt, dtLog);
+		HUF_decodeStreamX4(op4, &bitD4, oend, dt, dtLog);
+
+		/* check */
+		{
+			U32 const endCheck = BIT_endOfDStream(&bitD1) & BIT_endOfDStream(&bitD2) & BIT_endOfDStream(&bitD3) & BIT_endOfDStream(&bitD4);
+			if (!endCheck)
+				return ERROR(corruption_detected);
+		}
+
+		/* decoded size */
+		return dstSize;
+	}
+}
+
+size_t HUF_decompress4X4_usingDTable(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	DTableDesc dtd = HUF_getDTableDesc(DTable);
+	if (dtd.tableType != 1)
+		return ERROR(GENERIC);
+	return HUF_decompress4X4_usingDTable_internal(dst, dstSize, cSrc, cSrcSize, DTable);
+}
+
+size_t HUF_decompress4X4_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	const BYTE *ip = (const BYTE *)cSrc;
+
+	size_t hSize = HUF_readDTableX4_wksp(dctx, cSrc, cSrcSize, workspace, workspaceSize);
+	if (HUF_isError(hSize))
+		return hSize;
+	if (hSize >= cSrcSize)
+		return ERROR(srcSize_wrong);
+	ip += hSize;
+	cSrcSize -= hSize;
+
+	return HUF_decompress4X4_usingDTable_internal(dst, dstSize, ip, cSrcSize, dctx);
+}
+
+/* ********************************/
+/* Generic decompression selector */
+/* ********************************/
+
+size_t HUF_decompress1X_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	DTableDesc const dtd = HUF_getDTableDesc(DTable);
+	return dtd.tableType ? HUF_decompress1X4_usingDTable_internal(dst, maxDstSize, cSrc, cSrcSize, DTable)
+			     : HUF_decompress1X2_usingDTable_internal(dst, maxDstSize, cSrc, cSrcSize, DTable);
+}
+
+size_t HUF_decompress4X_usingDTable(void *dst, size_t maxDstSize, const void *cSrc, size_t cSrcSize, const HUF_DTable *DTable)
+{
+	DTableDesc const dtd = HUF_getDTableDesc(DTable);
+	return dtd.tableType ? HUF_decompress4X4_usingDTable_internal(dst, maxDstSize, cSrc, cSrcSize, DTable)
+			     : HUF_decompress4X2_usingDTable_internal(dst, maxDstSize, cSrc, cSrcSize, DTable);
+}
+
+typedef struct {
+	U32 tableTime;
+	U32 decode256Time;
+} algo_time_t;
+static const algo_time_t algoTime[16 /* Quantization */][3 /* single, double, quad */] = {
+    /* single, double, quad */
+    {{0, 0}, {1, 1}, {2, 2}},		     /* Q==0 : impossible */
+    {{0, 0}, {1, 1}, {2, 2}},		     /* Q==1 : impossible */
+    {{38, 130}, {1313, 74}, {2151, 38}},     /* Q == 2 : 12-18% */
+    {{448, 128}, {1353, 74}, {2238, 41}},    /* Q == 3 : 18-25% */
+    {{556, 128}, {1353, 74}, {2238, 47}},    /* Q == 4 : 25-32% */
+    {{714, 128}, {1418, 74}, {2436, 53}},    /* Q == 5 : 32-38% */
+    {{883, 128}, {1437, 74}, {2464, 61}},    /* Q == 6 : 38-44% */
+    {{897, 128}, {1515, 75}, {2622, 68}},    /* Q == 7 : 44-50% */
+    {{926, 128}, {1613, 75}, {2730, 75}},    /* Q == 8 : 50-56% */
+    {{947, 128}, {1729, 77}, {3359, 77}},    /* Q == 9 : 56-62% */
+    {{1107, 128}, {2083, 81}, {4006, 84}},   /* Q ==10 : 62-69% */
+    {{1177, 128}, {2379, 87}, {4785, 88}},   /* Q ==11 : 69-75% */
+    {{1242, 128}, {2415, 93}, {5155, 84}},   /* Q ==12 : 75-81% */
+    {{1349, 128}, {2644, 106}, {5260, 106}}, /* Q ==13 : 81-87% */
+    {{1455, 128}, {2422, 124}, {4174, 124}}, /* Q ==14 : 87-93% */
+    {{722, 128}, {1891, 145}, {1936, 146}},  /* Q ==15 : 93-99% */
+};
+
+/** HUF_selectDecoder() :
+*   Tells which decoder is likely to decode faster,
+*   based on a set of pre-determined metrics.
+*   @return : 0==HUF_decompress4X2, 1==HUF_decompress4X4 .
+*   Assumption : 0 < cSrcSize < dstSize <= 128 KB */
+U32 HUF_selectDecoder(size_t dstSize, size_t cSrcSize)
+{
+	/* decoder timing evaluation */
+	U32 const Q = (U32)(cSrcSize * 16 / dstSize); /* Q < 16 since dstSize > cSrcSize */
+	U32 const D256 = (U32)(dstSize >> 8);
+	U32 const DTime0 = algoTime[Q][0].tableTime + (algoTime[Q][0].decode256Time * D256);
+	U32 DTime1 = algoTime[Q][1].tableTime + (algoTime[Q][1].decode256Time * D256);
+	DTime1 += DTime1 >> 3; /* advantage to algorithm using less memory, for cache eviction */
+
+	return DTime1 < DTime0;
+}
+
+typedef size_t (*decompressionAlgo)(void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize);
+
+size_t HUF_decompress4X_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	/* validation checks */
+	if (dstSize == 0)
+		return ERROR(dstSize_tooSmall);
+	if (cSrcSize > dstSize)
+		return ERROR(corruption_detected); /* invalid */
+	if (cSrcSize == dstSize) {
+		memcpy(dst, cSrc, dstSize);
+		return dstSize;
+	} /* not compressed */
+	if (cSrcSize == 1) {
+		memset(dst, *(const BYTE *)cSrc, dstSize);
+		return dstSize;
+	} /* RLE */
+
+	{
+		U32 const algoNb = HUF_selectDecoder(dstSize, cSrcSize);
+		return algoNb ? HUF_decompress4X4_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workspace, workspaceSize)
+			      : HUF_decompress4X2_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workspace, workspaceSize);
+	}
+}
+
+size_t HUF_decompress4X_hufOnly_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	/* validation checks */
+	if (dstSize == 0)
+		return ERROR(dstSize_tooSmall);
+	if ((cSrcSize >= dstSize) || (cSrcSize <= 1))
+		return ERROR(corruption_detected); /* invalid */
+
+	{
+		U32 const algoNb = HUF_selectDecoder(dstSize, cSrcSize);
+		return algoNb ? HUF_decompress4X4_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workspace, workspaceSize)
+			      : HUF_decompress4X2_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workspace, workspaceSize);
+	}
+}
+
+size_t HUF_decompress1X_DCtx_wksp(HUF_DTable *dctx, void *dst, size_t dstSize, const void *cSrc, size_t cSrcSize, void *workspace, size_t workspaceSize)
+{
+	/* validation checks */
+	if (dstSize == 0)
+		return ERROR(dstSize_tooSmall);
+	if (cSrcSize > dstSize)
+		return ERROR(corruption_detected); /* invalid */
+	if (cSrcSize == dstSize) {
+		memcpy(dst, cSrc, dstSize);
+		return dstSize;
+	} /* not compressed */
+	if (cSrcSize == 1) {
+		memset(dst, *(const BYTE *)cSrc, dstSize);
+		return dstSize;
+	} /* RLE */
+
+	{
+		U32 const algoNb = HUF_selectDecoder(dstSize, cSrcSize);
+		return algoNb ? HUF_decompress1X4_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workspace, workspaceSize)
+			      : HUF_decompress1X2_DCtx_wksp(dctx, dst, dstSize, cSrc, cSrcSize, workspace, workspaceSize);
+	}
+}
diff --git a/lib/zstd/mem.h b/lib/zstd/mem.h
new file mode 100644
index 000000000000..3a0f34c8706c
--- /dev/null
+++ b/lib/zstd/mem.h
@@ -0,0 +1,151 @@
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+#ifndef MEM_H_MODULE
+#define MEM_H_MODULE
+
+/*-****************************************
+*  Dependencies
+******************************************/
+#include <asm/unaligned.h>
+#include <linux/string.h> /* memcpy */
+#include <linux/types.h>  /* size_t, ptrdiff_t */
+
+/*-****************************************
+*  Compiler specifics
+******************************************/
+#define ZSTD_STATIC static __inline __attribute__((unused))
+
+/*-**************************************************************
+*  Basic Types
+*****************************************************************/
+typedef uint8_t BYTE;
+typedef uint16_t U16;
+typedef int16_t S16;
+typedef uint32_t U32;
+typedef int32_t S32;
+typedef uint64_t U64;
+typedef int64_t S64;
+typedef ptrdiff_t iPtrDiff;
+typedef uintptr_t uPtrDiff;
+
+/*-**************************************************************
+*  Memory I/O
+*****************************************************************/
+ZSTD_STATIC unsigned ZSTD_32bits(void) { return sizeof(size_t) == 4; }
+ZSTD_STATIC unsigned ZSTD_64bits(void) { return sizeof(size_t) == 8; }
+
+#if defined(__LITTLE_ENDIAN)
+#define ZSTD_LITTLE_ENDIAN 1
+#else
+#define ZSTD_LITTLE_ENDIAN 0
+#endif
+
+ZSTD_STATIC unsigned ZSTD_isLittleEndian(void) { return ZSTD_LITTLE_ENDIAN; }
+
+ZSTD_STATIC U16 ZSTD_read16(const void *memPtr) { return get_unaligned((const U16 *)memPtr); }
+
+ZSTD_STATIC U32 ZSTD_read32(const void *memPtr) { return get_unaligned((const U32 *)memPtr); }
+
+ZSTD_STATIC U64 ZSTD_read64(const void *memPtr) { return get_unaligned((const U64 *)memPtr); }
+
+ZSTD_STATIC size_t ZSTD_readST(const void *memPtr) { return get_unaligned((const size_t *)memPtr); }
+
+ZSTD_STATIC void ZSTD_write16(void *memPtr, U16 value) { put_unaligned(value, (U16 *)memPtr); }
+
+ZSTD_STATIC void ZSTD_write32(void *memPtr, U32 value) { put_unaligned(value, (U32 *)memPtr); }
+
+ZSTD_STATIC void ZSTD_write64(void *memPtr, U64 value) { put_unaligned(value, (U64 *)memPtr); }
+
+/*=== Little endian r/w ===*/
+
+ZSTD_STATIC U16 ZSTD_readLE16(const void *memPtr) { return get_unaligned_le16(memPtr); }
+
+ZSTD_STATIC void ZSTD_writeLE16(void *memPtr, U16 val) { put_unaligned_le16(val, memPtr); }
+
+ZSTD_STATIC U32 ZSTD_readLE24(const void *memPtr) { return ZSTD_readLE16(memPtr) + (((const BYTE *)memPtr)[2] << 16); }
+
+ZSTD_STATIC void ZSTD_writeLE24(void *memPtr, U32 val)
+{
+	ZSTD_writeLE16(memPtr, (U16)val);
+	((BYTE *)memPtr)[2] = (BYTE)(val >> 16);
+}
+
+ZSTD_STATIC U32 ZSTD_readLE32(const void *memPtr) { return get_unaligned_le32(memPtr); }
+
+ZSTD_STATIC void ZSTD_writeLE32(void *memPtr, U32 val32) { put_unaligned_le32(val32, memPtr); }
+
+ZSTD_STATIC U64 ZSTD_readLE64(const void *memPtr) { return get_unaligned_le64(memPtr); }
+
+ZSTD_STATIC void ZSTD_writeLE64(void *memPtr, U64 val64) { put_unaligned_le64(val64, memPtr); }
+
+ZSTD_STATIC size_t ZSTD_readLEST(const void *memPtr)
+{
+	if (ZSTD_32bits())
+		return (size_t)ZSTD_readLE32(memPtr);
+	else
+		return (size_t)ZSTD_readLE64(memPtr);
+}
+
+ZSTD_STATIC void ZSTD_writeLEST(void *memPtr, size_t val)
+{
+	if (ZSTD_32bits())
+		ZSTD_writeLE32(memPtr, (U32)val);
+	else
+		ZSTD_writeLE64(memPtr, (U64)val);
+}
+
+/*=== Big endian r/w ===*/
+
+ZSTD_STATIC U32 ZSTD_readBE32(const void *memPtr) { return get_unaligned_be32(memPtr); }
+
+ZSTD_STATIC void ZSTD_writeBE32(void *memPtr, U32 val32) { put_unaligned_be32(val32, memPtr); }
+
+ZSTD_STATIC U64 ZSTD_readBE64(const void *memPtr) { return get_unaligned_be64(memPtr); }
+
+ZSTD_STATIC void ZSTD_writeBE64(void *memPtr, U64 val64) { put_unaligned_be64(val64, memPtr); }
+
+ZSTD_STATIC size_t ZSTD_readBEST(const void *memPtr)
+{
+	if (ZSTD_32bits())
+		return (size_t)ZSTD_readBE32(memPtr);
+	else
+		return (size_t)ZSTD_readBE64(memPtr);
+}
+
+ZSTD_STATIC void ZSTD_writeBEST(void *memPtr, size_t val)
+{
+	if (ZSTD_32bits())
+		ZSTD_writeBE32(memPtr, (U32)val);
+	else
+		ZSTD_writeBE64(memPtr, (U64)val);
+}
+
+/* function safe only for comparisons */
+ZSTD_STATIC U32 ZSTD_readMINMATCH(const void *memPtr, U32 length)
+{
+	switch (length) {
+	default:
+	case 4: return ZSTD_read32(memPtr);
+	case 3:
+		if (ZSTD_isLittleEndian())
+			return ZSTD_read32(memPtr) << 8;
+		else
+			return ZSTD_read32(memPtr) >> 8;
+	}
+}
+
+#endif /* MEM_H_MODULE */
diff --git a/lib/zstd/zstd_common.c b/lib/zstd/zstd_common.c
new file mode 100644
index 000000000000..a282624ee155
--- /dev/null
+++ b/lib/zstd/zstd_common.c
@@ -0,0 +1,75 @@
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+/*-*************************************
+*  Dependencies
+***************************************/
+#include "error_private.h"
+#include "zstd_internal.h" /* declaration of ZSTD_isError, ZSTD_getErrorName, ZSTD_getErrorCode, ZSTD_getErrorString, ZSTD_versionNumber */
+#include <linux/kernel.h>
+
+/*=**************************************************************
+*  Custom allocator
+****************************************************************/
+
+#define stack_push(stack, size)                                 \
+	({                                                      \
+		void *const ptr = ZSTD_PTR_ALIGN((stack)->ptr); \
+		(stack)->ptr = (char *)ptr + (size);            \
+		(stack)->ptr <= (stack)->end ? ptr : NULL;      \
+	})
+
+ZSTD_customMem ZSTD_initStack(void *workspace, size_t workspaceSize)
+{
+	ZSTD_customMem stackMem = {ZSTD_stackAlloc, ZSTD_stackFree, workspace};
+	ZSTD_stack *stack = (ZSTD_stack *)workspace;
+	/* Verify preconditions */
+	if (!workspace || workspaceSize < sizeof(ZSTD_stack) || workspace != ZSTD_PTR_ALIGN(workspace)) {
+		ZSTD_customMem error = {NULL, NULL, NULL};
+		return error;
+	}
+	/* Initialize the stack */
+	stack->ptr = workspace;
+	stack->end = (char *)workspace + workspaceSize;
+	stack_push(stack, sizeof(ZSTD_stack));
+	return stackMem;
+}
+
+void *ZSTD_stackAllocAll(void *opaque, size_t *size)
+{
+	ZSTD_stack *stack = (ZSTD_stack *)opaque;
+	*size = (BYTE const *)stack->end - (BYTE *)ZSTD_PTR_ALIGN(stack->ptr);
+	return stack_push(stack, *size);
+}
+
+void *ZSTD_stackAlloc(void *opaque, size_t size)
+{
+	ZSTD_stack *stack = (ZSTD_stack *)opaque;
+	return stack_push(stack, size);
+}
+void ZSTD_stackFree(void *opaque, void *address)
+{
+	(void)opaque;
+	(void)address;
+}
+
+void *ZSTD_malloc(size_t size, ZSTD_customMem customMem) { return customMem.customAlloc(customMem.opaque, size); }
+
+void ZSTD_free(void *ptr, ZSTD_customMem customMem)
+{
+	if (ptr != NULL)
+		customMem.customFree(customMem.opaque, ptr);
+}
diff --git a/lib/zstd/zstd_internal.h b/lib/zstd/zstd_internal.h
new file mode 100644
index 000000000000..1a79fab9e13a
--- /dev/null
+++ b/lib/zstd/zstd_internal.h
@@ -0,0 +1,263 @@
+/**
+ * Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+#ifndef ZSTD_CCOMMON_H_MODULE
+#define ZSTD_CCOMMON_H_MODULE
+
+/*-*******************************************************
+*  Compiler specifics
+*********************************************************/
+#define FORCE_INLINE static __always_inline
+#define FORCE_NOINLINE static noinline
+
+/*-*************************************
+*  Dependencies
+***************************************/
+#include "error_private.h"
+#include "mem.h"
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/xxhash.h>
+#include <linux/zstd.h>
+
+/*-*************************************
+*  shared macros
+***************************************/
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define CHECK_F(f)                       \
+	{                                \
+		size_t const errcod = f; \
+		if (ERR_isError(errcod)) \
+			return errcod;   \
+	} /* check and Forward error code */
+#define CHECK_E(f, e)                    \
+	{                                \
+		size_t const errcod = f; \
+		if (ERR_isError(errcod)) \
+			return ERROR(e); \
+	} /* check and send Error code */
+#define ZSTD_STATIC_ASSERT(c)                                   \
+	{                                                       \
+		enum { ZSTD_static_assert = 1 / (int)(!!(c)) }; \
+	}
+
+/*-*************************************
+*  Common constants
+***************************************/
+#define ZSTD_OPT_NUM (1 << 12)
+#define ZSTD_DICT_MAGIC 0xEC30A437 /* v0.7+ */
+
+#define ZSTD_REP_NUM 3		      /* number of repcodes */
+#define ZSTD_REP_CHECK (ZSTD_REP_NUM) /* number of repcodes to check by the optimal parser */
+#define ZSTD_REP_MOVE (ZSTD_REP_NUM - 1)
+#define ZSTD_REP_MOVE_OPT (ZSTD_REP_NUM)
+static const U32 repStartValue[ZSTD_REP_NUM] = {1, 4, 8};
+
+#define KB *(1 << 10)
+#define MB *(1 << 20)
+#define GB *(1U << 30)
+
+#define BIT7 128
+#define BIT6 64
+#define BIT5 32
+#define BIT4 16
+#define BIT1 2
+#define BIT0 1
+
+#define ZSTD_WINDOWLOG_ABSOLUTEMIN 10
+static const size_t ZSTD_fcs_fieldSize[4] = {0, 2, 4, 8};
+static const size_t ZSTD_did_fieldSize[4] = {0, 1, 2, 4};
+
+#define ZSTD_BLOCKHEADERSIZE 3 /* C standard doesn't allow `static const` variable to be init using another `static const` variable */
+static const size_t ZSTD_blockHeaderSize = ZSTD_BLOCKHEADERSIZE;
+typedef enum { bt_raw, bt_rle, bt_compressed, bt_reserved } blockType_e;
+
+#define MIN_SEQUENCES_SIZE 1									  /* nbSeq==0 */
+#define MIN_CBLOCK_SIZE (1 /*litCSize*/ + 1 /* RLE or RAW */ + MIN_SEQUENCES_SIZE /* nbSeq==0 */) /* for a non-null block */
+
+#define HufLog 12
+typedef enum { set_basic, set_rle, set_compressed, set_repeat } symbolEncodingType_e;
+
+#define LONGNBSEQ 0x7F00
+
+#define MINMATCH 3
+#define EQUAL_READ32 4
+
+#define Litbits 8
+#define MaxLit ((1 << Litbits) - 1)
+#define MaxML 52
+#define MaxLL 35
+#define MaxOff 28
+#define MaxSeq MAX(MaxLL, MaxML) /* Assumption : MaxOff < MaxLL,MaxML */
+#define MLFSELog 9
+#define LLFSELog 9
+#define OffFSELog 8
+
+static const U32 LL_bits[MaxLL + 1] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+static const S16 LL_defaultNorm[MaxLL + 1] = {4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 1, 1, 1, 1, 1, -1, -1, -1, -1};
+#define LL_DEFAULTNORMLOG 6 /* for static allocation */
+static const U32 LL_defaultNormLog = LL_DEFAULTNORMLOG;
+
+static const U32 ML_bits[MaxML + 1] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,  0,  0,  0,  0,  0,  0, 0,
+				       0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16};
+static const S16 ML_defaultNorm[MaxML + 1] = {1, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,  1,  1,  1,  1,  1,  1, 1,
+					      1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1, -1, -1};
+#define ML_DEFAULTNORMLOG 6 /* for static allocation */
+static const U32 ML_defaultNormLog = ML_DEFAULTNORMLOG;
+
+static const S16 OF_defaultNorm[MaxOff + 1] = {1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1};
+#define OF_DEFAULTNORMLOG 5 /* for static allocation */
+static const U32 OF_defaultNormLog = OF_DEFAULTNORMLOG;
+
+/*-*******************************************
+*  Shared functions to include for inlining
+*********************************************/
+ZSTD_STATIC void ZSTD_copy8(void *dst, const void *src) {
+	memcpy(dst, src, 8);
+}
+/*! ZSTD_wildcopy() :
+*   custom version of memcpy(), can copy up to 7 bytes too many (8 bytes if length==0) */
+#define WILDCOPY_OVERLENGTH 8
+ZSTD_STATIC void ZSTD_wildcopy(void *dst, const void *src, ptrdiff_t length)
+{
+	const BYTE* ip = (const BYTE*)src;
+	BYTE* op = (BYTE*)dst;
+	BYTE* const oend = op + length;
+	/* Work around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81388.
+	 * Avoid the bad case where the loop only runs once by handling the
+	 * special case separately. This doesn't trigger the bug because it
+	 * doesn't involve pointer/integer overflow.
+	 */
+	if (length <= 8)
+		return ZSTD_copy8(dst, src);
+	do {
+		ZSTD_copy8(op, ip);
+		op += 8;
+		ip += 8;
+	} while (op < oend);
+}
+
+/*-*******************************************
+*  Private interfaces
+*********************************************/
+typedef struct ZSTD_stats_s ZSTD_stats_t;
+
+typedef struct {
+	U32 off;
+	U32 len;
+} ZSTD_match_t;
+
+typedef struct {
+	U32 price;
+	U32 off;
+	U32 mlen;
+	U32 litlen;
+	U32 rep[ZSTD_REP_NUM];
+} ZSTD_optimal_t;
+
+typedef struct seqDef_s {
+	U32 offset;
+	U16 litLength;
+	U16 matchLength;
+} seqDef;
+
+typedef struct {
+	seqDef *sequencesStart;
+	seqDef *sequences;
+	BYTE *litStart;
+	BYTE *lit;
+	BYTE *llCode;
+	BYTE *mlCode;
+	BYTE *ofCode;
+	U32 longLengthID; /* 0 == no longLength; 1 == Lit.longLength; 2 == Match.longLength; */
+	U32 longLengthPos;
+	/* opt */
+	ZSTD_optimal_t *priceTable;
+	ZSTD_match_t *matchTable;
+	U32 *matchLengthFreq;
+	U32 *litLengthFreq;
+	U32 *litFreq;
+	U32 *offCodeFreq;
+	U32 matchLengthSum;
+	U32 matchSum;
+	U32 litLengthSum;
+	U32 litSum;
+	U32 offCodeSum;
+	U32 log2matchLengthSum;
+	U32 log2matchSum;
+	U32 log2litLengthSum;
+	U32 log2litSum;
+	U32 log2offCodeSum;
+	U32 factor;
+	U32 staticPrices;
+	U32 cachedPrice;
+	U32 cachedLitLength;
+	const BYTE *cachedLiterals;
+} seqStore_t;
+
+const seqStore_t *ZSTD_getSeqStore(const ZSTD_CCtx *ctx);
+void ZSTD_seqToCodes(const seqStore_t *seqStorePtr);
+int ZSTD_isSkipFrame(ZSTD_DCtx *dctx);
+
+/*= Custom memory allocation functions */
+typedef void *(*ZSTD_allocFunction)(void *opaque, size_t size);
+typedef void (*ZSTD_freeFunction)(void *opaque, void *address);
+typedef struct {
+	ZSTD_allocFunction customAlloc;
+	ZSTD_freeFunction customFree;
+	void *opaque;
+} ZSTD_customMem;
+
+void *ZSTD_malloc(size_t size, ZSTD_customMem customMem);
+void ZSTD_free(void *ptr, ZSTD_customMem customMem);
+
+/*====== stack allocation  ======*/
+
+typedef struct {
+	void *ptr;
+	const void *end;
+} ZSTD_stack;
+
+#define ZSTD_ALIGN(x) ALIGN(x, sizeof(size_t))
+#define ZSTD_PTR_ALIGN(p) PTR_ALIGN(p, sizeof(size_t))
+
+ZSTD_customMem ZSTD_initStack(void *workspace, size_t workspaceSize);
+
+void *ZSTD_stackAllocAll(void *opaque, size_t *size);
+void *ZSTD_stackAlloc(void *opaque, size_t size);
+void ZSTD_stackFree(void *opaque, void *address);
+
+/*======  common function  ======*/
+
+ZSTD_STATIC U32 ZSTD_highbit32(U32 val) { return 31 - __builtin_clz(val); }
+
+/* hidden functions */
+
+/* ZSTD_invalidateRepCodes() :
+ * ensures next compression will not use repcodes from previous block.
+ * Note : only works with regular variant;
+ *        do not use with extDict variant ! */
+void ZSTD_invalidateRepCodes(ZSTD_CCtx *cctx);
+
+size_t ZSTD_freeCCtx(ZSTD_CCtx *cctx);
+size_t ZSTD_freeDCtx(ZSTD_DCtx *dctx);
+size_t ZSTD_freeCDict(ZSTD_CDict *cdict);
+size_t ZSTD_freeDDict(ZSTD_DDict *cdict);
+size_t ZSTD_freeCStream(ZSTD_CStream *zcs);
+size_t ZSTD_freeDStream(ZSTD_DStream *zds);
+
+#endif /* ZSTD_CCOMMON_H_MODULE */
diff --git a/lib/zstd/zstd_opt.h b/lib/zstd/zstd_opt.h
new file mode 100644
index 000000000000..55e1b4cba808
--- /dev/null
+++ b/lib/zstd/zstd_opt.h
@@ -0,0 +1,1014 @@
+/**
+ * Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of https://github.com/facebook/zstd.
+ * An additional grant of patent rights can be found in the PATENTS file in the
+ * same directory.
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation. This program is dual-licensed; you may select
+ * either version 2 of the GNU General Public License ("GPL") or BSD license
+ * ("BSD").
+ */
+
+/* Note : this file is intended to be included within zstd_compress.c */
+
+#ifndef ZSTD_OPT_H_91842398743
+#define ZSTD_OPT_H_91842398743
+
+#define ZSTD_LITFREQ_ADD 2
+#define ZSTD_FREQ_DIV 4
+#define ZSTD_MAX_PRICE (1 << 30)
+
+/*-*************************************
+*  Price functions for optimal parser
+***************************************/
+FORCE_INLINE void ZSTD_setLog2Prices(seqStore_t *ssPtr)
+{
+	ssPtr->log2matchLengthSum = ZSTD_highbit32(ssPtr->matchLengthSum + 1);
+	ssPtr->log2litLengthSum = ZSTD_highbit32(ssPtr->litLengthSum + 1);
+	ssPtr->log2litSum = ZSTD_highbit32(ssPtr->litSum + 1);
+	ssPtr->log2offCodeSum = ZSTD_highbit32(ssPtr->offCodeSum + 1);
+	ssPtr->factor = 1 + ((ssPtr->litSum >> 5) / ssPtr->litLengthSum) + ((ssPtr->litSum << 1) / (ssPtr->litSum + ssPtr->matchSum));
+}
+
+ZSTD_STATIC void ZSTD_rescaleFreqs(seqStore_t *ssPtr, const BYTE *src, size_t srcSize)
+{
+	unsigned u;
+
+	ssPtr->cachedLiterals = NULL;
+	ssPtr->cachedPrice = ssPtr->cachedLitLength = 0;
+	ssPtr->staticPrices = 0;
+
+	if (ssPtr->litLengthSum == 0) {
+		if (srcSize <= 1024)
+			ssPtr->staticPrices = 1;
+
+		for (u = 0; u <= MaxLit; u++)
+			ssPtr->litFreq[u] = 0;
+		for (u = 0; u < srcSize; u++)
+			ssPtr->litFreq[src[u]]++;
+
+		ssPtr->litSum = 0;
+		ssPtr->litLengthSum = MaxLL + 1;
+		ssPtr->matchLengthSum = MaxML + 1;
+		ssPtr->offCodeSum = (MaxOff + 1);
+		ssPtr->matchSum = (ZSTD_LITFREQ_ADD << Litbits);
+
+		for (u = 0; u <= MaxLit; u++) {
+			ssPtr->litFreq[u] = 1 + (ssPtr->litFreq[u] >> ZSTD_FREQ_DIV);
+			ssPtr->litSum += ssPtr->litFreq[u];
+		}
+		for (u = 0; u <= MaxLL; u++)
+			ssPtr->litLengthFreq[u] = 1;
+		for (u = 0; u <= MaxML; u++)
+			ssPtr->matchLengthFreq[u] = 1;
+		for (u = 0; u <= MaxOff; u++)
+			ssPtr->offCodeFreq[u] = 1;
+	} else {
+		ssPtr->matchLengthSum = 0;
+		ssPtr->litLengthSum = 0;
+		ssPtr->offCodeSum = 0;
+		ssPtr->matchSum = 0;
+		ssPtr->litSum = 0;
+
+		for (u = 0; u <= MaxLit; u++) {
+			ssPtr->litFreq[u] = 1 + (ssPtr->litFreq[u] >> (ZSTD_FREQ_DIV + 1));
+			ssPtr->litSum += ssPtr->litFreq[u];
+		}
+		for (u = 0; u <= MaxLL; u++) {
+			ssPtr->litLengthFreq[u] = 1 + (ssPtr->litLengthFreq[u] >> (ZSTD_FREQ_DIV + 1));
+			ssPtr->litLengthSum += ssPtr->litLengthFreq[u];
+		}
+		for (u = 0; u <= MaxML; u++) {
+			ssPtr->matchLengthFreq[u] = 1 + (ssPtr->matchLengthFreq[u] >> ZSTD_FREQ_DIV);
+			ssPtr->matchLengthSum += ssPtr->matchLengthFreq[u];
+			ssPtr->matchSum += ssPtr->matchLengthFreq[u] * (u + 3);
+		}
+		ssPtr->matchSum *= ZSTD_LITFREQ_ADD;
+		for (u = 0; u <= MaxOff; u++) {
+			ssPtr->offCodeFreq[u] = 1 + (ssPtr->offCodeFreq[u] >> ZSTD_FREQ_DIV);
+			ssPtr->offCodeSum += ssPtr->offCodeFreq[u];
+		}
+	}
+
+	ZSTD_setLog2Prices(ssPtr);
+}
+
+FORCE_INLINE U32 ZSTD_getLiteralPrice(seqStore_t *ssPtr, U32 litLength, const BYTE *literals)
+{
+	U32 price, u;
+
+	if (ssPtr->staticPrices)
+		return ZSTD_highbit32((U32)litLength + 1) + (litLength * 6);
+
+	if (litLength == 0)
+		return ssPtr->log2litLengthSum - ZSTD_highbit32(ssPtr->litLengthFreq[0] + 1);
+
+	/* literals */
+	if (ssPtr->cachedLiterals == literals) {
+		U32 const additional = litLength - ssPtr->cachedLitLength;
+		const BYTE *literals2 = ssPtr->cachedLiterals + ssPtr->cachedLitLength;
+		price = ssPtr->cachedPrice + additional * ssPtr->log2litSum;
+		for (u = 0; u < additional; u++)
+			price -= ZSTD_highbit32(ssPtr->litFreq[literals2[u]] + 1);
+		ssPtr->cachedPrice = price;
+		ssPtr->cachedLitLength = litLength;
+	} else {
+		price = litLength * ssPtr->log2litSum;
+		for (u = 0; u < litLength; u++)
+			price -= ZSTD_highbit32(ssPtr->litFreq[literals[u]] + 1);
+
+		if (litLength >= 12) {
+			ssPtr->cachedLiterals = literals;
+			ssPtr->cachedPrice = price;
+			ssPtr->cachedLitLength = litLength;
+		}
+	}
+
+	/* literal Length */
+	{
+		const BYTE LL_deltaCode = 19;
+		const BYTE llCode = (litLength > 63) ? (BYTE)ZSTD_highbit32(litLength) + LL_deltaCode : LL_Code[litLength];
+		price += LL_bits[llCode] + ssPtr->log2litLengthSum - ZSTD_highbit32(ssPtr->litLengthFreq[llCode] + 1);
+	}
+
+	return price;
+}
+
+FORCE_INLINE U32 ZSTD_getPrice(seqStore_t *seqStorePtr, U32 litLength, const BYTE *literals, U32 offset, U32 matchLength, const int ultra)
+{
+	/* offset */
+	U32 price;
+	BYTE const offCode = (BYTE)ZSTD_highbit32(offset + 1);
+
+	if (seqStorePtr->staticPrices)
+		return ZSTD_getLiteralPrice(seqStorePtr, litLength, literals) + ZSTD_highbit32((U32)matchLength + 1) + 16 + offCode;
+
+	price = offCode + seqStorePtr->log2offCodeSum - ZSTD_highbit32(seqStorePtr->offCodeFreq[offCode] + 1);
+	if (!ultra && offCode >= 20)
+		price += (offCode - 19) * 2;
+
+	/* match Length */
+	{
+		const BYTE ML_deltaCode = 36;
+		const BYTE mlCode = (matchLength > 127) ? (BYTE)ZSTD_highbit32(matchLength) + ML_deltaCode : ML_Code[matchLength];
+		price += ML_bits[mlCode] + seqStorePtr->log2matchLengthSum - ZSTD_highbit32(seqStorePtr->matchLengthFreq[mlCode] + 1);
+	}
+
+	return price + ZSTD_getLiteralPrice(seqStorePtr, litLength, literals) + seqStorePtr->factor;
+}
+
+ZSTD_STATIC void ZSTD_updatePrice(seqStore_t *seqStorePtr, U32 litLength, const BYTE *literals, U32 offset, U32 matchLength)
+{
+	U32 u;
+
+	/* literals */
+	seqStorePtr->litSum += litLength * ZSTD_LITFREQ_ADD;
+	for (u = 0; u < litLength; u++)
+		seqStorePtr->litFreq[literals[u]] += ZSTD_LITFREQ_ADD;
+
+	/* literal Length */
+	{
+		const BYTE LL_deltaCode = 19;
+		const BYTE llCode = (litLength > 63) ? (BYTE)ZSTD_highbit32(litLength) + LL_deltaCode : LL_Code[litLength];
+		seqStorePtr->litLengthFreq[llCode]++;
+		seqStorePtr->litLengthSum++;
+	}
+
+	/* match offset */
+	{
+		BYTE const offCode = (BYTE)ZSTD_highbit32(offset + 1);
+		seqStorePtr->offCodeSum++;
+		seqStorePtr->offCodeFreq[offCode]++;
+	}
+
+	/* match Length */
+	{
+		const BYTE ML_deltaCode = 36;
+		const BYTE mlCode = (matchLength > 127) ? (BYTE)ZSTD_highbit32(matchLength) + ML_deltaCode : ML_Code[matchLength];
+		seqStorePtr->matchLengthFreq[mlCode]++;
+		seqStorePtr->matchLengthSum++;
+	}
+
+	ZSTD_setLog2Prices(seqStorePtr);
+}
+
+#define SET_PRICE(pos, mlen_, offset_, litlen_, price_)           \
+	{                                                         \
+		while (last_pos < pos) {                          \
+			opt[last_pos + 1].price = ZSTD_MAX_PRICE; \
+			last_pos++;                               \
+		}                                                 \
+		opt[pos].mlen = mlen_;                            \
+		opt[pos].off = offset_;                           \
+		opt[pos].litlen = litlen_;                        \
+		opt[pos].price = price_;                          \
+	}
+
+/* Update hashTable3 up to ip (excluded)
+   Assumption : always within prefix (i.e. not within extDict) */
+FORCE_INLINE
+U32 ZSTD_insertAndFindFirstIndexHash3(ZSTD_CCtx *zc, const BYTE *ip)
+{
+	U32 *const hashTable3 = zc->hashTable3;
+	U32 const hashLog3 = zc->hashLog3;
+	const BYTE *const base = zc->base;
+	U32 idx = zc->nextToUpdate3;
+	const U32 target = zc->nextToUpdate3 = (U32)(ip - base);
+	const size_t hash3 = ZSTD_hash3Ptr(ip, hashLog3);
+
+	while (idx < target) {
+		hashTable3[ZSTD_hash3Ptr(base + idx, hashLog3)] = idx;
+		idx++;
+	}
+
+	return hashTable3[hash3];
+}
+
+/*-*************************************
+*  Binary Tree search
+***************************************/
+static U32 ZSTD_insertBtAndGetAllMatches(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iLimit, U32 nbCompares, const U32 mls, U32 extDict,
+					 ZSTD_match_t *matches, const U32 minMatchLen)
+{
+	const BYTE *const base = zc->base;
+	const U32 curr = (U32)(ip - base);
+	const U32 hashLog = zc->params.cParams.hashLog;
+	const size_t h = ZSTD_hashPtr(ip, hashLog, mls);
+	U32 *const hashTable = zc->hashTable;
+	U32 matchIndex = hashTable[h];
+	U32 *const bt = zc->chainTable;
+	const U32 btLog = zc->params.cParams.chainLog - 1;
+	const U32 btMask = (1U << btLog) - 1;
+	size_t commonLengthSmaller = 0, commonLengthLarger = 0;
+	const BYTE *const dictBase = zc->dictBase;
+	const U32 dictLimit = zc->dictLimit;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+	const BYTE *const prefixStart = base + dictLimit;
+	const U32 btLow = btMask >= curr ? 0 : curr - btMask;
+	const U32 windowLow = zc->lowLimit;
+	U32 *smallerPtr = bt + 2 * (curr & btMask);
+	U32 *largerPtr = bt + 2 * (curr & btMask) + 1;
+	U32 matchEndIdx = curr + 8;
+	U32 dummy32; /* to be nullified at the end */
+	U32 mnum = 0;
+
+	const U32 minMatch = (mls == 3) ? 3 : 4;
+	size_t bestLength = minMatchLen - 1;
+
+	if (minMatch == 3) { /* HC3 match finder */
+		U32 const matchIndex3 = ZSTD_insertAndFindFirstIndexHash3(zc, ip);
+		if (matchIndex3 > windowLow && (curr - matchIndex3 < (1 << 18))) {
+			const BYTE *match;
+			size_t currMl = 0;
+			if ((!extDict) || matchIndex3 >= dictLimit) {
+				match = base + matchIndex3;
+				if (match[bestLength] == ip[bestLength])
+					currMl = ZSTD_count(ip, match, iLimit);
+			} else {
+				match = dictBase + matchIndex3;
+				if (ZSTD_readMINMATCH(match, MINMATCH) ==
+				    ZSTD_readMINMATCH(ip, MINMATCH)) /* assumption : matchIndex3 <= dictLimit-4 (by table construction) */
+					currMl = ZSTD_count_2segments(ip + MINMATCH, match + MINMATCH, iLimit, dictEnd, prefixStart) + MINMATCH;
+			}
+
+			/* save best solution */
+			if (currMl > bestLength) {
+				bestLength = currMl;
+				matches[mnum].off = ZSTD_REP_MOVE_OPT + curr - matchIndex3;
+				matches[mnum].len = (U32)currMl;
+				mnum++;
+				if (currMl > ZSTD_OPT_NUM)
+					goto update;
+				if (ip + currMl == iLimit)
+					goto update; /* best possible, and avoid read overflow*/
+			}
+		}
+	}
+
+	hashTable[h] = curr; /* Update Hash Table */
+
+	while (nbCompares-- && (matchIndex > windowLow)) {
+		U32 *nextPtr = bt + 2 * (matchIndex & btMask);
+		size_t matchLength = MIN(commonLengthSmaller, commonLengthLarger); /* guaranteed minimum nb of common bytes */
+		const BYTE *match;
+
+		if ((!extDict) || (matchIndex + matchLength >= dictLimit)) {
+			match = base + matchIndex;
+			if (match[matchLength] == ip[matchLength]) {
+				matchLength += ZSTD_count(ip + matchLength + 1, match + matchLength + 1, iLimit) + 1;
+			}
+		} else {
+			match = dictBase + matchIndex;
+			matchLength += ZSTD_count_2segments(ip + matchLength, match + matchLength, iLimit, dictEnd, prefixStart);
+			if (matchIndex + matchLength >= dictLimit)
+				match = base + matchIndex; /* to prepare for next usage of match[matchLength] */
+		}
+
+		if (matchLength > bestLength) {
+			if (matchLength > matchEndIdx - matchIndex)
+				matchEndIdx = matchIndex + (U32)matchLength;
+			bestLength = matchLength;
+			matches[mnum].off = ZSTD_REP_MOVE_OPT + curr - matchIndex;
+			matches[mnum].len = (U32)matchLength;
+			mnum++;
+			if (matchLength > ZSTD_OPT_NUM)
+				break;
+			if (ip + matchLength == iLimit) /* equal : no way to know if inf or sup */
+				break;			/* drop, to guarantee consistency (miss a little bit of compression) */
+		}
+
+		if (match[matchLength] < ip[matchLength]) {
+			/* match is smaller than curr */
+			*smallerPtr = matchIndex;	  /* update smaller idx */
+			commonLengthSmaller = matchLength; /* all smaller will now have at least this guaranteed common length */
+			if (matchIndex <= btLow) {
+				smallerPtr = &dummy32;
+				break;
+			}			  /* beyond tree size, stop the search */
+			smallerPtr = nextPtr + 1; /* new "smaller" => larger of match */
+			matchIndex = nextPtr[1];  /* new matchIndex larger than previous (closer to curr) */
+		} else {
+			/* match is larger than curr */
+			*largerPtr = matchIndex;
+			commonLengthLarger = matchLength;
+			if (matchIndex <= btLow) {
+				largerPtr = &dummy32;
+				break;
+			} /* beyond tree size, stop the search */
+			largerPtr = nextPtr;
+			matchIndex = nextPtr[0];
+		}
+	}
+
+	*smallerPtr = *largerPtr = 0;
+
+update:
+	zc->nextToUpdate = (matchEndIdx > curr + 8) ? matchEndIdx - 8 : curr + 1;
+	return mnum;
+}
+
+/** Tree updater, providing best match */
+static U32 ZSTD_BtGetAllMatches(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iLimit, const U32 maxNbAttempts, const U32 mls, ZSTD_match_t *matches,
+				const U32 minMatchLen)
+{
+	if (ip < zc->base + zc->nextToUpdate)
+		return 0; /* skipped area */
+	ZSTD_updateTree(zc, ip, iLimit, maxNbAttempts, mls);
+	return ZSTD_insertBtAndGetAllMatches(zc, ip, iLimit, maxNbAttempts, mls, 0, matches, minMatchLen);
+}
+
+static U32 ZSTD_BtGetAllMatches_selectMLS(ZSTD_CCtx *zc, /* Index table will be updated */
+					  const BYTE *ip, const BYTE *const iHighLimit, const U32 maxNbAttempts, const U32 matchLengthSearch,
+					  ZSTD_match_t *matches, const U32 minMatchLen)
+{
+	switch (matchLengthSearch) {
+	case 3: return ZSTD_BtGetAllMatches(zc, ip, iHighLimit, maxNbAttempts, 3, matches, minMatchLen);
+	default:
+	case 4: return ZSTD_BtGetAllMatches(zc, ip, iHighLimit, maxNbAttempts, 4, matches, minMatchLen);
+	case 5: return ZSTD_BtGetAllMatches(zc, ip, iHighLimit, maxNbAttempts, 5, matches, minMatchLen);
+	case 7:
+	case 6: return ZSTD_BtGetAllMatches(zc, ip, iHighLimit, maxNbAttempts, 6, matches, minMatchLen);
+	}
+}
+
+/** Tree updater, providing best match */
+static U32 ZSTD_BtGetAllMatches_extDict(ZSTD_CCtx *zc, const BYTE *const ip, const BYTE *const iLimit, const U32 maxNbAttempts, const U32 mls,
+					ZSTD_match_t *matches, const U32 minMatchLen)
+{
+	if (ip < zc->base + zc->nextToUpdate)
+		return 0; /* skipped area */
+	ZSTD_updateTree_extDict(zc, ip, iLimit, maxNbAttempts, mls);
+	return ZSTD_insertBtAndGetAllMatches(zc, ip, iLimit, maxNbAttempts, mls, 1, matches, minMatchLen);
+}
+
+static U32 ZSTD_BtGetAllMatches_selectMLS_extDict(ZSTD_CCtx *zc, /* Index table will be updated */
+						  const BYTE *ip, const BYTE *const iHighLimit, const U32 maxNbAttempts, const U32 matchLengthSearch,
+						  ZSTD_match_t *matches, const U32 minMatchLen)
+{
+	switch (matchLengthSearch) {
+	case 3: return ZSTD_BtGetAllMatches_extDict(zc, ip, iHighLimit, maxNbAttempts, 3, matches, minMatchLen);
+	default:
+	case 4: return ZSTD_BtGetAllMatches_extDict(zc, ip, iHighLimit, maxNbAttempts, 4, matches, minMatchLen);
+	case 5: return ZSTD_BtGetAllMatches_extDict(zc, ip, iHighLimit, maxNbAttempts, 5, matches, minMatchLen);
+	case 7:
+	case 6: return ZSTD_BtGetAllMatches_extDict(zc, ip, iHighLimit, maxNbAttempts, 6, matches, minMatchLen);
+	}
+}
+
+/*-*******************************
+*  Optimal parser
+*********************************/
+FORCE_INLINE
+void ZSTD_compressBlock_opt_generic(ZSTD_CCtx *ctx, const void *src, size_t srcSize, const int ultra)
+{
+	seqStore_t *seqStorePtr = &(ctx->seqStore);
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - 8;
+	const BYTE *const base = ctx->base;
+	const BYTE *const prefixStart = base + ctx->dictLimit;
+
+	const U32 maxSearches = 1U << ctx->params.cParams.searchLog;
+	const U32 sufficient_len = ctx->params.cParams.targetLength;
+	const U32 mls = ctx->params.cParams.searchLength;
+	const U32 minMatch = (ctx->params.cParams.searchLength == 3) ? 3 : 4;
+
+	ZSTD_optimal_t *opt = seqStorePtr->priceTable;
+	ZSTD_match_t *matches = seqStorePtr->matchTable;
+	const BYTE *inr;
+	U32 offset, rep[ZSTD_REP_NUM];
+
+	/* init */
+	ctx->nextToUpdate3 = ctx->nextToUpdate;
+	ZSTD_rescaleFreqs(seqStorePtr, (const BYTE *)src, srcSize);
+	ip += (ip == prefixStart);
+	{
+		U32 i;
+		for (i = 0; i < ZSTD_REP_NUM; i++)
+			rep[i] = ctx->rep[i];
+	}
+
+	/* Match Loop */
+	while (ip < ilimit) {
+		U32 cur, match_num, last_pos, litlen, price;
+		U32 u, mlen, best_mlen, best_off, litLength;
+		memset(opt, 0, sizeof(ZSTD_optimal_t));
+		last_pos = 0;
+		litlen = (U32)(ip - anchor);
+
+		/* check repCode */
+		{
+			U32 i, last_i = ZSTD_REP_CHECK + (ip == anchor);
+			for (i = (ip == anchor); i < last_i; i++) {
+				const S32 repCur = (i == ZSTD_REP_MOVE_OPT) ? (rep[0] - 1) : rep[i];
+				if ((repCur > 0) && (repCur < (S32)(ip - prefixStart)) &&
+				    (ZSTD_readMINMATCH(ip, minMatch) == ZSTD_readMINMATCH(ip - repCur, minMatch))) {
+					mlen = (U32)ZSTD_count(ip + minMatch, ip + minMatch - repCur, iend) + minMatch;
+					if (mlen > sufficient_len || mlen >= ZSTD_OPT_NUM) {
+						best_mlen = mlen;
+						best_off = i;
+						cur = 0;
+						last_pos = 1;
+						goto _storeSequence;
+					}
+					best_off = i - (ip == anchor);
+					do {
+						price = ZSTD_getPrice(seqStorePtr, litlen, anchor, best_off, mlen - MINMATCH, ultra);
+						if (mlen > last_pos || price < opt[mlen].price)
+							SET_PRICE(mlen, mlen, i, litlen, price); /* note : macro modifies last_pos */
+						mlen--;
+					} while (mlen >= minMatch);
+				}
+			}
+		}
+
+		match_num = ZSTD_BtGetAllMatches_selectMLS(ctx, ip, iend, maxSearches, mls, matches, minMatch);
+
+		if (!last_pos && !match_num) {
+			ip++;
+			continue;
+		}
+
+		if (match_num && (matches[match_num - 1].len > sufficient_len || matches[match_num - 1].len >= ZSTD_OPT_NUM)) {
+			best_mlen = matches[match_num - 1].len;
+			best_off = matches[match_num - 1].off;
+			cur = 0;
+			last_pos = 1;
+			goto _storeSequence;
+		}
+
+		/* set prices using matches at position = 0 */
+		best_mlen = (last_pos) ? last_pos : minMatch;
+		for (u = 0; u < match_num; u++) {
+			mlen = (u > 0) ? matches[u - 1].len + 1 : best_mlen;
+			best_mlen = matches[u].len;
+			while (mlen <= best_mlen) {
+				price = ZSTD_getPrice(seqStorePtr, litlen, anchor, matches[u].off - 1, mlen - MINMATCH, ultra);
+				if (mlen > last_pos || price < opt[mlen].price)
+					SET_PRICE(mlen, mlen, matches[u].off, litlen, price); /* note : macro modifies last_pos */
+				mlen++;
+			}
+		}
+
+		if (last_pos < minMatch) {
+			ip++;
+			continue;
+		}
+
+		/* initialize opt[0] */
+		{
+			U32 i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				opt[0].rep[i] = rep[i];
+		}
+		opt[0].mlen = 1;
+		opt[0].litlen = litlen;
+
+		/* check further positions */
+		for (cur = 1; cur <= last_pos; cur++) {
+			inr = ip + cur;
+
+			if (opt[cur - 1].mlen == 1) {
+				litlen = opt[cur - 1].litlen + 1;
+				if (cur > litlen) {
+					price = opt[cur - litlen].price + ZSTD_getLiteralPrice(seqStorePtr, litlen, inr - litlen);
+				} else
+					price = ZSTD_getLiteralPrice(seqStorePtr, litlen, anchor);
+			} else {
+				litlen = 1;
+				price = opt[cur - 1].price + ZSTD_getLiteralPrice(seqStorePtr, litlen, inr - 1);
+			}
+
+			if (cur > last_pos || price <= opt[cur].price)
+				SET_PRICE(cur, 1, 0, litlen, price);
+
+			if (cur == last_pos)
+				break;
+
+			if (inr > ilimit) /* last match must start at a minimum distance of 8 from oend */
+				continue;
+
+			mlen = opt[cur].mlen;
+			if (opt[cur].off > ZSTD_REP_MOVE_OPT) {
+				opt[cur].rep[2] = opt[cur - mlen].rep[1];
+				opt[cur].rep[1] = opt[cur - mlen].rep[0];
+				opt[cur].rep[0] = opt[cur].off - ZSTD_REP_MOVE_OPT;
+			} else {
+				opt[cur].rep[2] = (opt[cur].off > 1) ? opt[cur - mlen].rep[1] : opt[cur - mlen].rep[2];
+				opt[cur].rep[1] = (opt[cur].off > 0) ? opt[cur - mlen].rep[0] : opt[cur - mlen].rep[1];
+				opt[cur].rep[0] =
+				    ((opt[cur].off == ZSTD_REP_MOVE_OPT) && (mlen != 1)) ? (opt[cur - mlen].rep[0] - 1) : (opt[cur - mlen].rep[opt[cur].off]);
+			}
+
+			best_mlen = minMatch;
+			{
+				U32 i, last_i = ZSTD_REP_CHECK + (mlen != 1);
+				for (i = (opt[cur].mlen != 1); i < last_i; i++) { /* check rep */
+					const S32 repCur = (i == ZSTD_REP_MOVE_OPT) ? (opt[cur].rep[0] - 1) : opt[cur].rep[i];
+					if ((repCur > 0) && (repCur < (S32)(inr - prefixStart)) &&
+					    (ZSTD_readMINMATCH(inr, minMatch) == ZSTD_readMINMATCH(inr - repCur, minMatch))) {
+						mlen = (U32)ZSTD_count(inr + minMatch, inr + minMatch - repCur, iend) + minMatch;
+
+						if (mlen > sufficient_len || cur + mlen >= ZSTD_OPT_NUM) {
+							best_mlen = mlen;
+							best_off = i;
+							last_pos = cur + 1;
+							goto _storeSequence;
+						}
+
+						best_off = i - (opt[cur].mlen != 1);
+						if (mlen > best_mlen)
+							best_mlen = mlen;
+
+						do {
+							if (opt[cur].mlen == 1) {
+								litlen = opt[cur].litlen;
+								if (cur > litlen) {
+									price = opt[cur - litlen].price + ZSTD_getPrice(seqStorePtr, litlen, inr - litlen,
+															best_off, mlen - MINMATCH, ultra);
+								} else
+									price = ZSTD_getPrice(seqStorePtr, litlen, anchor, best_off, mlen - MINMATCH, ultra);
+							} else {
+								litlen = 0;
+								price = opt[cur].price + ZSTD_getPrice(seqStorePtr, 0, NULL, best_off, mlen - MINMATCH, ultra);
+							}
+
+							if (cur + mlen > last_pos || price <= opt[cur + mlen].price)
+								SET_PRICE(cur + mlen, mlen, i, litlen, price);
+							mlen--;
+						} while (mlen >= minMatch);
+					}
+				}
+			}
+
+			match_num = ZSTD_BtGetAllMatches_selectMLS(ctx, inr, iend, maxSearches, mls, matches, best_mlen);
+
+			if (match_num > 0 && (matches[match_num - 1].len > sufficient_len || cur + matches[match_num - 1].len >= ZSTD_OPT_NUM)) {
+				best_mlen = matches[match_num - 1].len;
+				best_off = matches[match_num - 1].off;
+				last_pos = cur + 1;
+				goto _storeSequence;
+			}
+
+			/* set prices using matches at position = cur */
+			for (u = 0; u < match_num; u++) {
+				mlen = (u > 0) ? matches[u - 1].len + 1 : best_mlen;
+				best_mlen = matches[u].len;
+
+				while (mlen <= best_mlen) {
+					if (opt[cur].mlen == 1) {
+						litlen = opt[cur].litlen;
+						if (cur > litlen)
+							price = opt[cur - litlen].price + ZSTD_getPrice(seqStorePtr, litlen, ip + cur - litlen,
+													matches[u].off - 1, mlen - MINMATCH, ultra);
+						else
+							price = ZSTD_getPrice(seqStorePtr, litlen, anchor, matches[u].off - 1, mlen - MINMATCH, ultra);
+					} else {
+						litlen = 0;
+						price = opt[cur].price + ZSTD_getPrice(seqStorePtr, 0, NULL, matches[u].off - 1, mlen - MINMATCH, ultra);
+					}
+
+					if (cur + mlen > last_pos || (price < opt[cur + mlen].price))
+						SET_PRICE(cur + mlen, mlen, matches[u].off, litlen, price);
+
+					mlen++;
+				}
+			}
+		}
+
+		best_mlen = opt[last_pos].mlen;
+		best_off = opt[last_pos].off;
+		cur = last_pos - best_mlen;
+
+	/* store sequence */
+_storeSequence: /* cur, last_pos, best_mlen, best_off have to be set */
+		opt[0].mlen = 1;
+
+		while (1) {
+			mlen = opt[cur].mlen;
+			offset = opt[cur].off;
+			opt[cur].mlen = best_mlen;
+			opt[cur].off = best_off;
+			best_mlen = mlen;
+			best_off = offset;
+			if (mlen > cur)
+				break;
+			cur -= mlen;
+		}
+
+		for (u = 0; u <= last_pos;) {
+			u += opt[u].mlen;
+		}
+
+		for (cur = 0; cur < last_pos;) {
+			mlen = opt[cur].mlen;
+			if (mlen == 1) {
+				ip++;
+				cur++;
+				continue;
+			}
+			offset = opt[cur].off;
+			cur += mlen;
+			litLength = (U32)(ip - anchor);
+
+			if (offset > ZSTD_REP_MOVE_OPT) {
+				rep[2] = rep[1];
+				rep[1] = rep[0];
+				rep[0] = offset - ZSTD_REP_MOVE_OPT;
+				offset--;
+			} else {
+				if (offset != 0) {
+					best_off = (offset == ZSTD_REP_MOVE_OPT) ? (rep[0] - 1) : (rep[offset]);
+					if (offset != 1)
+						rep[2] = rep[1];
+					rep[1] = rep[0];
+					rep[0] = best_off;
+				}
+				if (litLength == 0)
+					offset--;
+			}
+
+			ZSTD_updatePrice(seqStorePtr, litLength, anchor, offset, mlen - MINMATCH);
+			ZSTD_storeSeq(seqStorePtr, litLength, anchor, offset, mlen - MINMATCH);
+			anchor = ip = ip + mlen;
+		}
+	} /* for (cur=0; cur < last_pos; ) */
+
+	/* Save reps for next block */
+	{
+		int i;
+		for (i = 0; i < ZSTD_REP_NUM; i++)
+			ctx->repToConfirm[i] = rep[i];
+	}
+
+	/* Last Literals */
+	{
+		size_t const lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+FORCE_INLINE
+void ZSTD_compressBlock_opt_extDict_generic(ZSTD_CCtx *ctx, const void *src, size_t srcSize, const int ultra)
+{
+	seqStore_t *seqStorePtr = &(ctx->seqStore);
+	const BYTE *const istart = (const BYTE *)src;
+	const BYTE *ip = istart;
+	const BYTE *anchor = istart;
+	const BYTE *const iend = istart + srcSize;
+	const BYTE *const ilimit = iend - 8;
+	const BYTE *const base = ctx->base;
+	const U32 lowestIndex = ctx->lowLimit;
+	const U32 dictLimit = ctx->dictLimit;
+	const BYTE *const prefixStart = base + dictLimit;
+	const BYTE *const dictBase = ctx->dictBase;
+	const BYTE *const dictEnd = dictBase + dictLimit;
+
+	const U32 maxSearches = 1U << ctx->params.cParams.searchLog;
+	const U32 sufficient_len = ctx->params.cParams.targetLength;
+	const U32 mls = ctx->params.cParams.searchLength;
+	const U32 minMatch = (ctx->params.cParams.searchLength == 3) ? 3 : 4;
+
+	ZSTD_optimal_t *opt = seqStorePtr->priceTable;
+	ZSTD_match_t *matches = seqStorePtr->matchTable;
+	const BYTE *inr;
+
+	/* init */
+	U32 offset, rep[ZSTD_REP_NUM];
+	{
+		U32 i;
+		for (i = 0; i < ZSTD_REP_NUM; i++)
+			rep[i] = ctx->rep[i];
+	}
+
+	ctx->nextToUpdate3 = ctx->nextToUpdate;
+	ZSTD_rescaleFreqs(seqStorePtr, (const BYTE *)src, srcSize);
+	ip += (ip == prefixStart);
+
+	/* Match Loop */
+	while (ip < ilimit) {
+		U32 cur, match_num, last_pos, litlen, price;
+		U32 u, mlen, best_mlen, best_off, litLength;
+		U32 curr = (U32)(ip - base);
+		memset(opt, 0, sizeof(ZSTD_optimal_t));
+		last_pos = 0;
+		opt[0].litlen = (U32)(ip - anchor);
+
+		/* check repCode */
+		{
+			U32 i, last_i = ZSTD_REP_CHECK + (ip == anchor);
+			for (i = (ip == anchor); i < last_i; i++) {
+				const S32 repCur = (i == ZSTD_REP_MOVE_OPT) ? (rep[0] - 1) : rep[i];
+				const U32 repIndex = (U32)(curr - repCur);
+				const BYTE *const repBase = repIndex < dictLimit ? dictBase : base;
+				const BYTE *const repMatch = repBase + repIndex;
+				if ((repCur > 0 && repCur <= (S32)curr) &&
+				    (((U32)((dictLimit - 1) - repIndex) >= 3) & (repIndex > lowestIndex)) /* intentional overflow */
+				    && (ZSTD_readMINMATCH(ip, minMatch) == ZSTD_readMINMATCH(repMatch, minMatch))) {
+					/* repcode detected we should take it */
+					const BYTE *const repEnd = repIndex < dictLimit ? dictEnd : iend;
+					mlen = (U32)ZSTD_count_2segments(ip + minMatch, repMatch + minMatch, iend, repEnd, prefixStart) + minMatch;
+
+					if (mlen > sufficient_len || mlen >= ZSTD_OPT_NUM) {
+						best_mlen = mlen;
+						best_off = i;
+						cur = 0;
+						last_pos = 1;
+						goto _storeSequence;
+					}
+
+					best_off = i - (ip == anchor);
+					litlen = opt[0].litlen;
+					do {
+						price = ZSTD_getPrice(seqStorePtr, litlen, anchor, best_off, mlen - MINMATCH, ultra);
+						if (mlen > last_pos || price < opt[mlen].price)
+							SET_PRICE(mlen, mlen, i, litlen, price); /* note : macro modifies last_pos */
+						mlen--;
+					} while (mlen >= minMatch);
+				}
+			}
+		}
+
+		match_num = ZSTD_BtGetAllMatches_selectMLS_extDict(ctx, ip, iend, maxSearches, mls, matches, minMatch); /* first search (depth 0) */
+
+		if (!last_pos && !match_num) {
+			ip++;
+			continue;
+		}
+
+		{
+			U32 i;
+			for (i = 0; i < ZSTD_REP_NUM; i++)
+				opt[0].rep[i] = rep[i];
+		}
+		opt[0].mlen = 1;
+
+		if (match_num && (matches[match_num - 1].len > sufficient_len || matches[match_num - 1].len >= ZSTD_OPT_NUM)) {
+			best_mlen = matches[match_num - 1].len;
+			best_off = matches[match_num - 1].off;
+			cur = 0;
+			last_pos = 1;
+			goto _storeSequence;
+		}
+
+		best_mlen = (last_pos) ? last_pos : minMatch;
+
+		/* set prices using matches at position = 0 */
+		for (u = 0; u < match_num; u++) {
+			mlen = (u > 0) ? matches[u - 1].len + 1 : best_mlen;
+			best_mlen = matches[u].len;
+			litlen = opt[0].litlen;
+			while (mlen <= best_mlen) {
+				price = ZSTD_getPrice(seqStorePtr, litlen, anchor, matches[u].off - 1, mlen - MINMATCH, ultra);
+				if (mlen > last_pos || price < opt[mlen].price)
+					SET_PRICE(mlen, mlen, matches[u].off, litlen, price);
+				mlen++;
+			}
+		}
+
+		if (last_pos < minMatch) {
+			ip++;
+			continue;
+		}
+
+		/* check further positions */
+		for (cur = 1; cur <= last_pos; cur++) {
+			inr = ip + cur;
+
+			if (opt[cur - 1].mlen == 1) {
+				litlen = opt[cur - 1].litlen + 1;
+				if (cur > litlen) {
+					price = opt[cur - litlen].price + ZSTD_getLiteralPrice(seqStorePtr, litlen, inr - litlen);
+				} else
+					price = ZSTD_getLiteralPrice(seqStorePtr, litlen, anchor);
+			} else {
+				litlen = 1;
+				price = opt[cur - 1].price + ZSTD_getLiteralPrice(seqStorePtr, litlen, inr - 1);
+			}
+
+			if (cur > last_pos || price <= opt[cur].price)
+				SET_PRICE(cur, 1, 0, litlen, price);
+
+			if (cur == last_pos)
+				break;
+
+			if (inr > ilimit) /* last match must start at a minimum distance of 8 from oend */
+				continue;
+
+			mlen = opt[cur].mlen;
+			if (opt[cur].off > ZSTD_REP_MOVE_OPT) {
+				opt[cur].rep[2] = opt[cur - mlen].rep[1];
+				opt[cur].rep[1] = opt[cur - mlen].rep[0];
+				opt[cur].rep[0] = opt[cur].off - ZSTD_REP_MOVE_OPT;
+			} else {
+				opt[cur].rep[2] = (opt[cur].off > 1) ? opt[cur - mlen].rep[1] : opt[cur - mlen].rep[2];
+				opt[cur].rep[1] = (opt[cur].off > 0) ? opt[cur - mlen].rep[0] : opt[cur - mlen].rep[1];
+				opt[cur].rep[0] =
+				    ((opt[cur].off == ZSTD_REP_MOVE_OPT) && (mlen != 1)) ? (opt[cur - mlen].rep[0] - 1) : (opt[cur - mlen].rep[opt[cur].off]);
+			}
+
+			best_mlen = minMatch;
+			{
+				U32 i, last_i = ZSTD_REP_CHECK + (mlen != 1);
+				for (i = (mlen != 1); i < last_i; i++) {
+					const S32 repCur = (i == ZSTD_REP_MOVE_OPT) ? (opt[cur].rep[0] - 1) : opt[cur].rep[i];
+					const U32 repIndex = (U32)(curr + cur - repCur);
+					const BYTE *const repBase = repIndex < dictLimit ? dictBase : base;
+					const BYTE *const repMatch = repBase + repIndex;
+					if ((repCur > 0 && repCur <= (S32)(curr + cur)) &&
+					    (((U32)((dictLimit - 1) - repIndex) >= 3) & (repIndex > lowestIndex)) /* intentional overflow */
+					    && (ZSTD_readMINMATCH(inr, minMatch) == ZSTD_readMINMATCH(repMatch, minMatch))) {
+						/* repcode detected */
+						const BYTE *const repEnd = repIndex < dictLimit ? dictEnd : iend;
+						mlen = (U32)ZSTD_count_2segments(inr + minMatch, repMatch + minMatch, iend, repEnd, prefixStart) + minMatch;
+
+						if (mlen > sufficient_len || cur + mlen >= ZSTD_OPT_NUM) {
+							best_mlen = mlen;
+							best_off = i;
+							last_pos = cur + 1;
+							goto _storeSequence;
+						}
+
+						best_off = i - (opt[cur].mlen != 1);
+						if (mlen > best_mlen)
+							best_mlen = mlen;
+
+						do {
+							if (opt[cur].mlen == 1) {
+								litlen = opt[cur].litlen;
+								if (cur > litlen) {
+									price = opt[cur - litlen].price + ZSTD_getPrice(seqStorePtr, litlen, inr - litlen,
+															best_off, mlen - MINMATCH, ultra);
+								} else
+									price = ZSTD_getPrice(seqStorePtr, litlen, anchor, best_off, mlen - MINMATCH, ultra);
+							} else {
+								litlen = 0;
+								price = opt[cur].price + ZSTD_getPrice(seqStorePtr, 0, NULL, best_off, mlen - MINMATCH, ultra);
+							}
+
+							if (cur + mlen > last_pos || price <= opt[cur + mlen].price)
+								SET_PRICE(cur + mlen, mlen, i, litlen, price);
+							mlen--;
+						} while (mlen >= minMatch);
+					}
+				}
+			}
+
+			match_num = ZSTD_BtGetAllMatches_selectMLS_extDict(ctx, inr, iend, maxSearches, mls, matches, minMatch);
+
+			if (match_num > 0 && (matches[match_num - 1].len > sufficient_len || cur + matches[match_num - 1].len >= ZSTD_OPT_NUM)) {
+				best_mlen = matches[match_num - 1].len;
+				best_off = matches[match_num - 1].off;
+				last_pos = cur + 1;
+				goto _storeSequence;
+			}
+
+			/* set prices using matches at position = cur */
+			for (u = 0; u < match_num; u++) {
+				mlen = (u > 0) ? matches[u - 1].len + 1 : best_mlen;
+				best_mlen = matches[u].len;
+
+				while (mlen <= best_mlen) {
+					if (opt[cur].mlen == 1) {
+						litlen = opt[cur].litlen;
+						if (cur > litlen)
+							price = opt[cur - litlen].price + ZSTD_getPrice(seqStorePtr, litlen, ip + cur - litlen,
+													matches[u].off - 1, mlen - MINMATCH, ultra);
+						else
+							price = ZSTD_getPrice(seqStorePtr, litlen, anchor, matches[u].off - 1, mlen - MINMATCH, ultra);
+					} else {
+						litlen = 0;
+						price = opt[cur].price + ZSTD_getPrice(seqStorePtr, 0, NULL, matches[u].off - 1, mlen - MINMATCH, ultra);
+					}
+
+					if (cur + mlen > last_pos || (price < opt[cur + mlen].price))
+						SET_PRICE(cur + mlen, mlen, matches[u].off, litlen, price);
+
+					mlen++;
+				}
+			}
+		} /* for (cur = 1; cur <= last_pos; cur++) */
+
+		best_mlen = opt[last_pos].mlen;
+		best_off = opt[last_pos].off;
+		cur = last_pos - best_mlen;
+
+	/* store sequence */
+_storeSequence: /* cur, last_pos, best_mlen, best_off have to be set */
+		opt[0].mlen = 1;
+
+		while (1) {
+			mlen = opt[cur].mlen;
+			offset = opt[cur].off;
+			opt[cur].mlen = best_mlen;
+			opt[cur].off = best_off;
+			best_mlen = mlen;
+			best_off = offset;
+			if (mlen > cur)
+				break;
+			cur -= mlen;
+		}
+
+		for (u = 0; u <= last_pos;) {
+			u += opt[u].mlen;
+		}
+
+		for (cur = 0; cur < last_pos;) {
+			mlen = opt[cur].mlen;
+			if (mlen == 1) {
+				ip++;
+				cur++;
+				continue;
+			}
+			offset = opt[cur].off;
+			cur += mlen;
+			litLength = (U32)(ip - anchor);
+
+			if (offset > ZSTD_REP_MOVE_OPT) {
+				rep[2] = rep[1];
+				rep[1] = rep[0];
+				rep[0] = offset - ZSTD_REP_MOVE_OPT;
+				offset--;
+			} else {
+				if (offset != 0) {
+					best_off = (offset == ZSTD_REP_MOVE_OPT) ? (rep[0] - 1) : (rep[offset]);
+					if (offset != 1)
+						rep[2] = rep[1];
+					rep[1] = rep[0];
+					rep[0] = best_off;
+				}
+
+				if (litLength == 0)
+					offset--;
+			}
+
+			ZSTD_updatePrice(seqStorePtr, litLength, anchor, offset, mlen - MINMATCH);
+			ZSTD_storeSeq(seqStorePtr, litLength, anchor, offset, mlen - MINMATCH);
+			anchor = ip = ip + mlen;
+		}
+	} /* for (cur=0; cur < last_pos; ) */
+
+	/* Save reps for next block */
+	{
+		int i;
+		for (i = 0; i < ZSTD_REP_NUM; i++)
+			ctx->repToConfirm[i] = rep[i];
+	}
+
+	/* Last Literals */
+	{
+		size_t lastLLSize = iend - anchor;
+		memcpy(seqStorePtr->lit, anchor, lastLLSize);
+		seqStorePtr->lit += lastLLSize;
+	}
+}
+
+#endif /* ZSTD_OPT_H_91842398743 */
diff --git a/mm/Makefile b/mm/Makefile
index e3ac3aeb533b..4659b93cba43 100644
--- a/mm/Makefile
+++ b/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux memory manager.
 #
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index e19606bb41a0..74b52dfd5852 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -1072,23 +1072,3 @@ out:
 	return ret;
 }
 EXPORT_SYMBOL(wait_iff_congested);
-
-int pdflush_proc_obsolete(struct ctl_table *table, int write,
-			void __user *buffer, size_t *lenp, loff_t *ppos)
-{
-	char kbuf[] = "0\n";
-
-	if (*ppos || *lenp < sizeof(kbuf)) {
-		*lenp = 0;
-		return 0;
-	}
-
-	if (copy_to_user(buffer, kbuf, sizeof(kbuf)))
-		return -EFAULT;
-	pr_warn_once("%s exported in /proc is scheduled for removal\n",
-		     table->procname);
-
-	*lenp = 2;
-	*ppos += *lenp;
-	return 2;
-}
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 9fedb27c6451..6aef64254203 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  bootmem - A boot-time physical memory allocator and configurator
  *
diff --git a/mm/cma.c b/mm/cma.c
index c0da318c020e..022e52bd8370 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -460,7 +460,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
 
 	trace_cma_alloc(pfn, page, count, align);
 
-	if (ret) {
+	if (ret && !(gfp_mask & __GFP_NOWARN)) {
 		pr_info("%s: alloc failed, req-size: %zu pages, ret: %d\n",
 			__func__, count, ret);
 		cma_debug_show_areas(cma);
diff --git a/mm/cma.h b/mm/cma.h
index 49861286279d..33c0b517733c 100644
--- a/mm/cma.h
+++ b/mm/cma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MM_CMA_H__
 #define __MM_CMA_H__
 
diff --git a/mm/cma_debug.c b/mm/cma_debug.c
index c03ccbc405a0..275df8b5b22e 100644
--- a/mm/cma_debug.c
+++ b/mm/cma_debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * CMA DebugFS Interface
  *
diff --git a/mm/compaction.c b/mm/compaction.c
index fb548e4c7bd4..85395dc6eb13 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/mm/compaction.c
  *
@@ -1999,17 +2000,14 @@ void wakeup_kcompactd(pg_data_t *pgdat, int order, int classzone_idx)
 	if (pgdat->kcompactd_max_order < order)
 		pgdat->kcompactd_max_order = order;
 
-	/*
-	 * Pairs with implicit barrier in wait_event_freezable()
-	 * such that wakeups are not missed in the lockless
-	 * waitqueue_active() call.
-	 */
-	smp_acquire__after_ctrl_dep();
-
 	if (pgdat->kcompactd_classzone_idx > classzone_idx)
 		pgdat->kcompactd_classzone_idx = classzone_idx;
 
-	if (!waitqueue_active(&pgdat->kcompactd_wait))
+	/*
+	 * Pairs with implicit barrier in wait_event_freezable()
+	 * such that wakeups are not missed.
+	 */
+	if (!wq_has_sleeper(&pgdat->kcompactd_wait))
 		return;
 
 	if (!kcompactd_node_suitable(pgdat))
diff --git a/mm/debug.c b/mm/debug.c
index 5715448ab0b5..6726bec731c9 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mm/debug.c
  *
diff --git a/mm/debug_page_ref.c b/mm/debug_page_ref.c
index 1aef3d562e52..f3b2c9d3ece2 100644
--- a/mm/debug_page_ref.c
+++ b/mm/debug_page_ref.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm_types.h>
 #include <linux/tracepoint.h>
 
diff --git a/mm/early_ioremap.c b/mm/early_ioremap.c
index b1dd4a948fc0..d04ac1ec0559 100644
--- a/mm/early_ioremap.c
+++ b/mm/early_ioremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Provide common bits of early_ioremap() support for architectures needing
  * temporary mappings during boot before ioremap() is available.
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 702f239cd6db..ec70d6e4b86d 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mm/fadvise.c
  *
diff --git a/mm/failslab.c b/mm/failslab.c
index b0fac98cd938..8087d976a809 100644
--- a/mm/failslab.c
+++ b/mm/failslab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/fault-inject.h>
 #include <linux/slab.h>
 #include <linux/mm.h>
diff --git a/mm/filemap.c b/mm/filemap.c
index 9d21afd692b9..594d73fef8b4 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -620,6 +620,14 @@ int file_check_and_advance_wb_err(struct file *file)
 		trace_file_check_and_advance_wb_err(file, old);
 		spin_unlock(&file->f_lock);
 	}
+
+	/*
+	 * We're mostly using this function as a drop in replacement for
+	 * filemap_check_errors. Clear AS_EIO/AS_ENOSPC to emulate the effect
+	 * that the legacy code would have had on these flags.
+	 */
+	clear_bit(AS_EIO, &mapping->flags);
+	clear_bit(AS_ENOSPC, &mapping->flags);
 	return err;
 }
 EXPORT_SYMBOL(file_check_and_advance_wb_err);
@@ -909,13 +917,33 @@ static void wake_up_page_bit(struct page *page, int bit_nr)
 	wait_queue_head_t *q = page_waitqueue(page);
 	struct wait_page_key key;
 	unsigned long flags;
+	wait_queue_entry_t bookmark;
 
 	key.page = page;
 	key.bit_nr = bit_nr;
 	key.page_match = 0;
 
+	bookmark.flags = 0;
+	bookmark.private = NULL;
+	bookmark.func = NULL;
+	INIT_LIST_HEAD(&bookmark.entry);
+
 	spin_lock_irqsave(&q->lock, flags);
-	__wake_up_locked_key(q, TASK_NORMAL, &key);
+	__wake_up_locked_key_bookmark(q, TASK_NORMAL, &key, &bookmark);
+
+	while (bookmark.flags & WQ_FLAG_BOOKMARK) {
+		/*
+		 * Take a breather from holding the lock,
+		 * allow pages that finish wake up asynchronously
+		 * to acquire the lock and remove themselves
+		 * from wait queue
+		 */
+		spin_unlock_irqrestore(&q->lock, flags);
+		cpu_relax();
+		spin_lock_irqsave(&q->lock, flags);
+		__wake_up_locked_key_bookmark(q, TASK_NORMAL, &key, &bookmark);
+	}
+
 	/*
 	 * It is possible for other pages to have collided on the waitqueue
 	 * hash, so in that case check for a page match. That prevents a long-
@@ -1897,9 +1925,8 @@ static void shrink_readahead_size_eio(struct file *filp,
 }
 
 /**
- * do_generic_file_read - generic file read routine
- * @filp:	the file to read
- * @ppos:	current file position
+ * generic_file_buffered_read - generic file read routine
+ * @iocb:	the iocb to read
  * @iter:	data destination
  * @written:	already copied
  *
@@ -1909,12 +1936,14 @@ static void shrink_readahead_size_eio(struct file *filp,
  * This is really ugly. But the goto's actually try to clarify some
  * of the logic when it comes to error handling etc.
  */
-static ssize_t do_generic_file_read(struct file *filp, loff_t *ppos,
+static ssize_t generic_file_buffered_read(struct kiocb *iocb,
 		struct iov_iter *iter, ssize_t written)
 {
+	struct file *filp = iocb->ki_filp;
 	struct address_space *mapping = filp->f_mapping;
 	struct inode *inode = mapping->host;
 	struct file_ra_state *ra = &filp->f_ra;
+	loff_t *ppos = &iocb->ki_pos;
 	pgoff_t index;
 	pgoff_t last_index;
 	pgoff_t prev_index;
@@ -1947,6 +1976,8 @@ find_page:
 
 		page = find_get_page(mapping, index);
 		if (!page) {
+			if (iocb->ki_flags & IOCB_NOWAIT)
+				goto would_block;
 			page_cache_sync_readahead(mapping,
 					ra, filp,
 					index, last_index - index);
@@ -1960,6 +1991,11 @@ find_page:
 					index, last_index - index);
 		}
 		if (!PageUptodate(page)) {
+			if (iocb->ki_flags & IOCB_NOWAIT) {
+				put_page(page);
+				goto would_block;
+			}
+
 			/*
 			 * See comment in do_read_cache_page on why
 			 * wait_on_page_locked is used to avoid unnecessarily
@@ -2141,6 +2177,8 @@ no_cached_page:
 		goto readpage;
 	}
 
+would_block:
+	error = -EAGAIN;
 out:
 	ra->prev_pos = prev_index;
 	ra->prev_pos <<= PAGE_SHIFT;
@@ -2162,14 +2200,14 @@ out:
 ssize_t
 generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 {
-	struct file *file = iocb->ki_filp;
-	ssize_t retval = 0;
 	size_t count = iov_iter_count(iter);
+	ssize_t retval = 0;
 
 	if (!count)
 		goto out; /* skip atime */
 
 	if (iocb->ki_flags & IOCB_DIRECT) {
+		struct file *file = iocb->ki_filp;
 		struct address_space *mapping = file->f_mapping;
 		struct inode *inode = mapping->host;
 		loff_t size;
@@ -2210,7 +2248,7 @@ generic_file_read_iter(struct kiocb *iocb, struct iov_iter *iter)
 			goto out;
 	}
 
-	retval = do_generic_file_read(file, &iocb->ki_pos, iter, retval);
+	retval = generic_file_buffered_read(iocb, iter, retval);
 out:
 	return retval;
 }
@@ -2896,9 +2934,15 @@ generic_file_direct_write(struct kiocb *iocb, struct iov_iter *from)
 	 * we're writing.  Either one is a pretty crazy thing to do,
 	 * so we don't support it 100%.  If this invalidation
 	 * fails, tough, the write still worked...
+	 *
+	 * Most of the time we do not need this since dio_complete() will do
+	 * the invalidation for us. However there are some file systems that
+	 * do not end up with dio_complete() being called, so let's not break
+	 * them by removing it completely
 	 */
-	invalidate_inode_pages2_range(mapping,
-				pos >> PAGE_SHIFT, end);
+	if (mapping->nrpages)
+		invalidate_inode_pages2_range(mapping,
+					pos >> PAGE_SHIFT, end);
 
 	if (written > 0) {
 		pos += written;
diff --git a/mm/frame_vector.c b/mm/frame_vector.c
index 72ebec18629c..2f98df0d460e 100644
--- a/mm/frame_vector.c
+++ b/mm/frame_vector.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/errno.h>
 #include <linux/err.h>
diff --git a/mm/gup.c b/mm/gup.c
index b2b4d4263768..dfcde13f289a 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1643,6 +1643,47 @@ static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end,
 	return 1;
 }
 
+static void gup_pgd_range(unsigned long addr, unsigned long end,
+		int write, struct page **pages, int *nr)
+{
+	unsigned long next;
+	pgd_t *pgdp;
+
+	pgdp = pgd_offset(current->mm, addr);
+	do {
+		pgd_t pgd = READ_ONCE(*pgdp);
+
+		next = pgd_addr_end(addr, end);
+		if (pgd_none(pgd))
+			return;
+		if (unlikely(pgd_huge(pgd))) {
+			if (!gup_huge_pgd(pgd, pgdp, addr, next, write,
+					  pages, nr))
+				return;
+		} else if (unlikely(is_hugepd(__hugepd(pgd_val(pgd))))) {
+			if (!gup_huge_pd(__hugepd(pgd_val(pgd)), addr,
+					 PGDIR_SHIFT, next, write, pages, nr))
+				return;
+		} else if (!gup_p4d_range(pgd, addr, next, write, pages, nr))
+			return;
+	} while (pgdp++, addr = next, addr != end);
+}
+
+#ifndef gup_fast_permitted
+/*
+ * Check if it's allowed to use __get_user_pages_fast() for the range, or
+ * we need to fall back to the slow version:
+ */
+bool gup_fast_permitted(unsigned long start, int nr_pages, int write)
+{
+	unsigned long len, end;
+
+	len = (unsigned long) nr_pages << PAGE_SHIFT;
+	end = start + len;
+	return end >= start;
+}
+#endif
+
 /*
  * Like get_user_pages_fast() except it's IRQ-safe in that it won't fall back to
  * the regular GUP. It will only return non-negative values.
@@ -1650,10 +1691,8 @@ static int gup_p4d_range(pgd_t pgd, unsigned long addr, unsigned long end,
 int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 			  struct page **pages)
 {
-	struct mm_struct *mm = current->mm;
 	unsigned long addr, len, end;
-	unsigned long next, flags;
-	pgd_t *pgdp;
+	unsigned long flags;
 	int nr = 0;
 
 	start &= PAGE_MASK;
@@ -1677,45 +1716,15 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	 * block IPIs that come from THPs splitting.
 	 */
 
-	local_irq_save(flags);
-	pgdp = pgd_offset(mm, addr);
-	do {
-		pgd_t pgd = READ_ONCE(*pgdp);
-
-		next = pgd_addr_end(addr, end);
-		if (pgd_none(pgd))
-			break;
-		if (unlikely(pgd_huge(pgd))) {
-			if (!gup_huge_pgd(pgd, pgdp, addr, next, write,
-					  pages, &nr))
-				break;
-		} else if (unlikely(is_hugepd(__hugepd(pgd_val(pgd))))) {
-			if (!gup_huge_pd(__hugepd(pgd_val(pgd)), addr,
-					 PGDIR_SHIFT, next, write, pages, &nr))
-				break;
-		} else if (!gup_p4d_range(pgd, addr, next, write, pages, &nr))
-			break;
-	} while (pgdp++, addr = next, addr != end);
-	local_irq_restore(flags);
+	if (gup_fast_permitted(start, nr_pages, write)) {
+		local_irq_save(flags);
+		gup_pgd_range(addr, end, write, pages, &nr);
+		local_irq_restore(flags);
+	}
 
 	return nr;
 }
 
-#ifndef gup_fast_permitted
-/*
- * Check if it's allowed to use __get_user_pages_fast() for the range, or
- * we need to fall back to the slow version:
- */
-bool gup_fast_permitted(unsigned long start, int nr_pages, int write)
-{
-	unsigned long len, end;
-
-	len = (unsigned long) nr_pages << PAGE_SHIFT;
-	end = start + len;
-	return end >= start;
-}
-#endif
-
 /**
  * get_user_pages_fast() - pin user pages in memory
  * @start:	starting user address
@@ -1735,12 +1744,22 @@ bool gup_fast_permitted(unsigned long start, int nr_pages, int write)
 int get_user_pages_fast(unsigned long start, int nr_pages, int write,
 			struct page **pages)
 {
+	unsigned long addr, len, end;
 	int nr = 0, ret = 0;
 
 	start &= PAGE_MASK;
+	addr = start;
+	len = (unsigned long) nr_pages << PAGE_SHIFT;
+	end = start + len;
+
+	if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ,
+					(void __user *)start, len)))
+		return 0;
 
 	if (gup_fast_permitted(start, nr_pages, write)) {
-		nr = __get_user_pages_fast(start, nr_pages, write, pages);
+		local_irq_disable();
+		gup_pgd_range(addr, end, write, pages, &nr);
+		local_irq_enable();
 		ret = nr;
 	}
 
diff --git a/mm/highmem.c b/mm/highmem.c
index 50b4ca6787f0..59db3223a5d6 100644
--- a/mm/highmem.c
+++ b/mm/highmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * High memory handling common code and variables.
  *
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 269b5df58543..b521ed1170f9 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -941,6 +941,9 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 				pmd = pmd_swp_mksoft_dirty(pmd);
 			set_pmd_at(src_mm, addr, src_pmd, pmd);
 		}
+		add_mm_counter(dst_mm, MM_ANONPAGES, HPAGE_PMD_NR);
+		atomic_long_inc(&dst_mm->nr_ptes);
+		pgtable_trans_huge_deposit(dst_mm, dst_pmd, pgtable);
 		set_pmd_at(dst_mm, addr, dst_pmd, pmd);
 		ret = 0;
 		goto out_unlock;
@@ -2715,7 +2718,7 @@ static unsigned long deferred_split_count(struct shrinker *shrink,
 		struct shrink_control *sc)
 {
 	struct pglist_data *pgdata = NODE_DATA(sc->nid);
-	return ACCESS_ONCE(pgdata->split_queue_len);
+	return READ_ONCE(pgdata->split_queue_len);
 }
 
 static unsigned long deferred_split_scan(struct shrinker *shrink,
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 424b0ef08a60..2d2ff5e8bf2b 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -3984,6 +3984,9 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
 			    unsigned long src_addr,
 			    struct page **pagep)
 {
+	struct address_space *mapping;
+	pgoff_t idx;
+	unsigned long size;
 	int vm_shared = dst_vma->vm_flags & VM_SHARED;
 	struct hstate *h = hstate_vma(dst_vma);
 	pte_t _dst_pte;
@@ -4021,13 +4024,24 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
 	__SetPageUptodate(page);
 	set_page_huge_active(page);
 
+	mapping = dst_vma->vm_file->f_mapping;
+	idx = vma_hugecache_offset(h, dst_vma, dst_addr);
+
 	/*
 	 * If shared, add to page cache
 	 */
 	if (vm_shared) {
-		struct address_space *mapping = dst_vma->vm_file->f_mapping;
-		pgoff_t idx = vma_hugecache_offset(h, dst_vma, dst_addr);
+		size = i_size_read(mapping->host) >> huge_page_shift(h);
+		ret = -EFAULT;
+		if (idx >= size)
+			goto out_release_nounlock;
 
+		/*
+		 * Serialization between remove_inode_hugepages() and
+		 * huge_add_to_page_cache() below happens through the
+		 * hugetlb_fault_mutex_table that here must be hold by
+		 * the caller.
+		 */
 		ret = huge_add_to_page_cache(page, mapping, idx);
 		if (ret)
 			goto out_release_nounlock;
@@ -4036,6 +4050,20 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
 	ptl = huge_pte_lockptr(h, dst_mm, dst_pte);
 	spin_lock(ptl);
 
+	/*
+	 * Recheck the i_size after holding PT lock to make sure not
+	 * to leave any page mapped (as page_mapped()) beyond the end
+	 * of the i_size (remove_inode_hugepages() is strict about
+	 * enforcing that). If we bail out here, we'll also leave a
+	 * page in the radix tree in the vm_shared case beyond the end
+	 * of the i_size, but remove_inode_hugepages() will take care
+	 * of it as soon as we drop the hugetlb_fault_mutex_table.
+	 */
+	size = i_size_read(mapping->host) >> huge_page_shift(h);
+	ret = -EFAULT;
+	if (idx >= size)
+		goto out_release_unlock;
+
 	ret = -EEXIST;
 	if (!huge_pte_none(huge_ptep_get(dst_pte)))
 		goto out_release_unlock;
diff --git a/mm/init-mm.c b/mm/init-mm.c
index 975e49f00f34..f94d5d15ebc0 100644
--- a/mm/init-mm.c
+++ b/mm/init-mm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm_types.h>
 #include <linux/rbtree.h>
 #include <linux/rwsem.h>
diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index 2976a9ee104f..3289db38bc87 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 KASAN_SANITIZE := n
 UBSAN_SANITIZE_kasan.o := n
 KCOV_INSTRUMENT := n
diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h
index 1229298cce64..c70851a9a6a4 100644
--- a/mm/kasan/kasan.h
+++ b/mm/kasan/kasan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MM_KASAN_KASAN_H
 #define __MM_KASAN_KASAN_H
 
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index c01f177a1120..43cb3043311b 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/mm.h>
diff --git a/mm/kmemcheck.c b/mm/kmemcheck.c
index 2d5959c5f7c5..800d64b854ea 100644
--- a/mm/kmemcheck.c
+++ b/mm/kmemcheck.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/gfp.h>
 #include <linux/mm_types.h>
 #include <linux/mm.h>
diff --git a/mm/ksm.c b/mm/ksm.c
index 15dd7415f7b3..6cb60f46cce5 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1990,6 +1990,7 @@ static void stable_tree_append(struct rmap_item *rmap_item,
  */
 static void cmp_and_merge_page(struct page *page, struct rmap_item *rmap_item)
 {
+	struct mm_struct *mm = rmap_item->mm;
 	struct rmap_item *tree_rmap_item;
 	struct page *tree_page = NULL;
 	struct stable_node *stable_node;
@@ -2062,9 +2063,11 @@ static void cmp_and_merge_page(struct page *page, struct rmap_item *rmap_item)
 	if (ksm_use_zero_pages && (checksum == zero_checksum)) {
 		struct vm_area_struct *vma;
 
-		vma = find_mergeable_vma(rmap_item->mm, rmap_item->address);
+		down_read(&mm->mmap_sem);
+		vma = find_mergeable_vma(mm, rmap_item->address);
 		err = try_to_merge_one_page(vma, page,
 					    ZERO_PAGE(rmap_item->address));
+		up_read(&mm->mmap_sem);
 		/*
 		 * In case of failure, the page was not really empty, so we
 		 * need to continue. Otherwise we're done.
diff --git a/mm/list_lru.c b/mm/list_lru.c
index 7a40fa2be858..f141f0c80ff3 100644
--- a/mm/list_lru.c
+++ b/mm/list_lru.c
@@ -325,12 +325,12 @@ static int memcg_init_list_lru_node(struct list_lru_node *nlru)
 {
 	int size = memcg_nr_cache_ids;
 
-	nlru->memcg_lrus = kmalloc(size * sizeof(void *), GFP_KERNEL);
+	nlru->memcg_lrus = kvmalloc(size * sizeof(void *), GFP_KERNEL);
 	if (!nlru->memcg_lrus)
 		return -ENOMEM;
 
 	if (__memcg_init_list_lru_node(nlru->memcg_lrus, 0, size)) {
-		kfree(nlru->memcg_lrus);
+		kvfree(nlru->memcg_lrus);
 		return -ENOMEM;
 	}
 
@@ -340,7 +340,7 @@ static int memcg_init_list_lru_node(struct list_lru_node *nlru)
 static void memcg_destroy_list_lru_node(struct list_lru_node *nlru)
 {
 	__memcg_destroy_list_lru_node(nlru->memcg_lrus, 0, memcg_nr_cache_ids);
-	kfree(nlru->memcg_lrus);
+	kvfree(nlru->memcg_lrus);
 }
 
 static int memcg_update_list_lru_node(struct list_lru_node *nlru,
@@ -351,12 +351,12 @@ static int memcg_update_list_lru_node(struct list_lru_node *nlru,
 	BUG_ON(old_size > new_size);
 
 	old = nlru->memcg_lrus;
-	new = kmalloc(new_size * sizeof(void *), GFP_KERNEL);
+	new = kvmalloc(new_size * sizeof(void *), GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
 	if (__memcg_init_list_lru_node(new, old_size, new_size)) {
-		kfree(new);
+		kvfree(new);
 		return -ENOMEM;
 	}
 
@@ -373,7 +373,7 @@ static int memcg_update_list_lru_node(struct list_lru_node *nlru,
 	nlru->memcg_lrus = new;
 	spin_unlock_irq(&nlru->lock);
 
-	kfree(old);
+	kvfree(old);
 	return 0;
 }
 
diff --git a/mm/madvise.c b/mm/madvise.c
index 21261ff0466f..375cf32087e4 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/mm/madvise.c
  *
@@ -625,18 +626,26 @@ static int madvise_inject_error(int behavior,
 {
 	struct page *page;
 	struct zone *zone;
+	unsigned int order;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	for (; start < end; start += PAGE_SIZE <<
-				compound_order(compound_head(page))) {
+
+	for (; start < end; start += PAGE_SIZE << order) {
 		int ret;
 
 		ret = get_user_pages_fast(start, 1, 0, &page);
 		if (ret != 1)
 			return ret;
 
+		/*
+		 * When soft offlining hugepages, after migrating the page
+		 * we dissolve it, therefore in the second loop "page" will
+		 * no longer be a compound page, and order will be 0.
+		 */
+		order = compound_order(compound_head(page));
+
 		if (PageHWPoison(page)) {
 			put_page(page);
 			continue;
@@ -749,6 +758,9 @@ madvise_behavior_valid(int behavior)
  *  MADV_DONTFORK - omit this area from child's address space when forking:
  *		typically, to avoid COWing pages pinned by get_user_pages().
  *  MADV_DOFORK - cancel MADV_DONTFORK: no longer omit this area when forking.
+ *  MADV_WIPEONFORK - present the child process with zero-filled memory in this
+ *              range after a fork.
+ *  MADV_KEEPONFORK - undo the effect of MADV_WIPEONFORK
  *  MADV_HWPOISON - trigger memory error handler as if the given memory range
  *		were corrupted by unrecoverable hardware memory failure.
  *  MADV_SOFT_OFFLINE - try to soft-offline the given range of memory.
@@ -769,7 +781,9 @@ madvise_behavior_valid(int behavior)
  *  zero    - success
  *  -EINVAL - start + len < 0, start is not page-aligned,
  *		"behavior" is not a valid value, or application
- *		is attempting to release locked or shared pages.
+ *		is attempting to release locked or shared pages,
+ *		or the specified address range includes file, Huge TLB,
+ *		MAP_SHARED or VMPFNMAP range.
  *  -ENOMEM - addresses in the specified range are not currently
  *		mapped, or are outside the AS of the process.
  *  -EIO    - an I/O error occurred while paging in data.
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 15af3da5af02..661f046ad318 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1777,6 +1777,10 @@ static void drain_local_stock(struct work_struct *dummy)
 	struct memcg_stock_pcp *stock;
 	unsigned long flags;
 
+	/*
+	 * The only protection from memory hotplug vs. drain_stock races is
+	 * that we always operate on local CPU stock here with IRQ disabled
+	 */
 	local_irq_save(flags);
 
 	stock = this_cpu_ptr(&memcg_stock);
@@ -1821,27 +1825,33 @@ static void drain_all_stock(struct mem_cgroup *root_memcg)
 	/* If someone's already draining, avoid adding running more workers. */
 	if (!mutex_trylock(&percpu_charge_mutex))
 		return;
-	/* Notify other cpus that system-wide "drain" is running */
-	get_online_cpus();
+	/*
+	 * Notify other cpus that system-wide "drain" is running
+	 * We do not care about races with the cpu hotplug because cpu down
+	 * as well as workers from this path always operate on the local
+	 * per-cpu data. CPU up doesn't touch memcg_stock at all.
+	 */
 	curcpu = get_cpu();
 	for_each_online_cpu(cpu) {
 		struct memcg_stock_pcp *stock = &per_cpu(memcg_stock, cpu);
 		struct mem_cgroup *memcg;
 
 		memcg = stock->cached;
-		if (!memcg || !stock->nr_pages)
+		if (!memcg || !stock->nr_pages || !css_tryget(&memcg->css))
 			continue;
-		if (!mem_cgroup_is_descendant(memcg, root_memcg))
+		if (!mem_cgroup_is_descendant(memcg, root_memcg)) {
+			css_put(&memcg->css);
 			continue;
+		}
 		if (!test_and_set_bit(FLUSHING_CACHED_CHARGE, &stock->flags)) {
 			if (cpu == curcpu)
 				drain_local_stock(&stock->work);
 			else
 				schedule_work_on(cpu, &stock->work);
 		}
+		css_put(&memcg->css);
 	}
 	put_cpu();
-	put_online_cpus();
 	mutex_unlock(&percpu_charge_mutex);
 }
 
@@ -5648,7 +5658,8 @@ static void uncharge_batch(const struct uncharge_gather *ug)
 static void uncharge_page(struct page *page, struct uncharge_gather *ug)
 {
 	VM_BUG_ON_PAGE(PageLRU(page), page);
-	VM_BUG_ON_PAGE(!PageHWPoison(page) && page_count(page), page);
+	VM_BUG_ON_PAGE(page_count(page) && !is_zone_device_page(page) &&
+			!PageHWPoison(page) , page);
 
 	if (!page->mem_cgroup)
 		return;
@@ -5817,21 +5828,6 @@ void mem_cgroup_sk_alloc(struct sock *sk)
 	if (!mem_cgroup_sockets_enabled)
 		return;
 
-	/*
-	 * Socket cloning can throw us here with sk_memcg already
-	 * filled. It won't however, necessarily happen from
-	 * process context. So the test for root memcg given
-	 * the current task's memcg won't help us in this case.
-	 *
-	 * Respecting the original socket's memcg is a better
-	 * decision in this case.
-	 */
-	if (sk->sk_memcg) {
-		BUG_ON(mem_cgroup_is_root(sk->sk_memcg));
-		css_get(&sk->sk_memcg->css);
-		return;
-	}
-
 	rcu_read_lock();
 	memcg = mem_cgroup_from_task(current);
 	if (memcg == root_mem_cgroup)
diff --git a/mm/memory.c b/mm/memory.c
index ec4e15494901..cae514e7dcfc 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -845,7 +845,7 @@ struct page *_vm_normal_page(struct vm_area_struct *vma, unsigned long addr,
 		 * vm_normal_page() so that we do not have to special case all
 		 * call site of vm_normal_page().
 		 */
-		if (likely(pfn < highest_memmap_pfn)) {
+		if (likely(pfn <= highest_memmap_pfn)) {
 			struct page *page = pfn_to_page(pfn);
 
 			if (is_device_public_page(page)) {
@@ -3891,9 +3891,9 @@ static int handle_pte_fault(struct vm_fault *vmf)
 		/*
 		 * some architectures can have larger ptes than wordsize,
 		 * e.g.ppc44x-defconfig has CONFIG_PTE_64BIT=y and
-		 * CONFIG_32BIT=y, so READ_ONCE or ACCESS_ONCE cannot guarantee
-		 * atomic accesses.  The code below just needs a consistent
-		 * view for the ifs and we later double check anyway with the
+		 * CONFIG_32BIT=y, so READ_ONCE cannot guarantee atomic
+		 * accesses.  The code below just needs a consistent view
+		 * for the ifs and we later double check anyway with the
 		 * ptl lock held. So here a barrier will do.
 		 */
 		barrier();
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index e882cb6da994..d4b5f29906b9 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -328,6 +328,7 @@ int __ref __add_pages(int nid, unsigned long phys_start_pfn,
 		if (err && (err != -EEXIST))
 			break;
 		err = 0;
+		cond_resched();
 	}
 	vmemmap_populate_print_last();
 out:
@@ -337,7 +338,7 @@ EXPORT_SYMBOL_GPL(__add_pages);
 
 #ifdef CONFIG_MEMORY_HOTREMOVE
 /* find the smallest valid pfn in the range [start_pfn, end_pfn) */
-static int find_smallest_section_pfn(int nid, struct zone *zone,
+static unsigned long find_smallest_section_pfn(int nid, struct zone *zone,
 				     unsigned long start_pfn,
 				     unsigned long end_pfn)
 {
@@ -362,7 +363,7 @@ static int find_smallest_section_pfn(int nid, struct zone *zone,
 }
 
 /* find the biggest valid pfn in the range [start_pfn, end_pfn). */
-static int find_biggest_section_pfn(int nid, struct zone *zone,
+static unsigned long find_biggest_section_pfn(int nid, struct zone *zone,
 				    unsigned long start_pfn,
 				    unsigned long end_pfn)
 {
@@ -550,7 +551,7 @@ static int __remove_section(struct zone *zone, struct mem_section *ms,
 		return ret;
 
 	scn_nr = __section_nr(ms);
-	start_pfn = section_nr_to_pfn(scn_nr);
+	start_pfn = section_nr_to_pfn((unsigned long)scn_nr);
 	__remove_zone(zone, start_pfn);
 
 	sparse_remove_one_section(zone, ms, map_offset);
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 006ba625c0b8..a2af6d58a68f 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1920,8 +1920,11 @@ static struct page *alloc_page_interleave(gfp_t gfp, unsigned order,
 	struct page *page;
 
 	page = __alloc_pages(gfp, order, nid);
-	if (page && page_to_nid(page) == nid)
-		inc_zone_page_state(page, NUMA_INTERLEAVE_HIT);
+	if (page && page_to_nid(page) == nid) {
+		preempt_disable();
+		__inc_numa_state(page_zone(page), NUMA_INTERLEAVE_HIT);
+		preempt_enable();
+	}
 	return page;
 }
 
diff --git a/mm/mempool.c b/mm/mempool.c
index 1c0294858527..c4a23cdae3f0 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/mm/mempool.c
  *
diff --git a/mm/memtest.c b/mm/memtest.c
index 8eaa4c3a5f65..f53ace709ccd 100644
--- a/mm/memtest.c
+++ b/mm/memtest.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/init.h>
diff --git a/mm/migrate.c b/mm/migrate.c
index 6954c1435833..1236449b4777 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Memory Migration functionality - linux/mm/migrate.c
  *
@@ -2146,8 +2147,9 @@ static int migrate_vma_collect_hole(unsigned long start,
 	unsigned long addr;
 
 	for (addr = start & PAGE_MASK; addr < end; addr += PAGE_SIZE) {
-		migrate->src[migrate->npages++] = MIGRATE_PFN_MIGRATE;
+		migrate->src[migrate->npages] = MIGRATE_PFN_MIGRATE;
 		migrate->dst[migrate->npages] = 0;
+		migrate->npages++;
 		migrate->cpages++;
 	}
 
diff --git a/mm/mincore.c b/mm/mincore.c
index c5687c45c326..fc37afe226e6 100644
--- a/mm/mincore.c
+++ b/mm/mincore.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/mm/mincore.c
  *
diff --git a/mm/mlock.c b/mm/mlock.c
index dfc6f1912176..46af369c13e5 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/mm/mlock.c
  *
diff --git a/mm/mmzone.c b/mm/mmzone.c
index a51c0a67ea3d..4686fdc23bb9 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/mm/mmzone.c
  *
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 6d3e2f082290..ec39f730a0bf 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  mm/mprotect.c
  *
diff --git a/mm/mremap.c b/mm/mremap.c
index cfec004c4ff9..049470aa1e3e 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	mm/mremap.c
  *
diff --git a/mm/msync.c b/mm/msync.c
index 24e612fefa04..ef30a429623a 100644
--- a/mm/msync.c
+++ b/mm/msync.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	linux/mm/msync.c
  *
diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 3637809a18d0..9b02fda0886b 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  bootmem - A boot-time physical memory allocator and configurator
  *
diff --git a/mm/nommu.c b/mm/nommu.c
index 53d5175a5c14..17c00d93de2e 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1164,17 +1164,12 @@ static int do_mmap_private(struct vm_area_struct *vma,
 
 	if (vma->vm_file) {
 		/* read the contents of a file into the copy */
-		mm_segment_t old_fs;
 		loff_t fpos;
 
 		fpos = vma->vm_pgoff;
 		fpos <<= PAGE_SHIFT;
 
-		old_fs = get_fs();
-		set_fs(KERNEL_DS);
-		ret = __vfs_read(vma->vm_file, base, len, &fpos);
-		set_fs(old_fs);
-
+		ret = kernel_read(vma->vm_file, base, len, &fpos);
 		if (ret < 0)
 			goto error_free;
 
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 99736e026712..dee0f75c3013 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -40,6 +40,7 @@
 #include <linux/ratelimit.h>
 #include <linux/kthread.h>
 #include <linux/init.h>
+#include <linux/mmu_notifier.h>
 
 #include <asm/tlb.h>
 #include "internal.h"
@@ -495,6 +496,21 @@ static bool __oom_reap_task_mm(struct task_struct *tsk, struct mm_struct *mm)
 	}
 
 	/*
+	 * If the mm has notifiers then we would need to invalidate them around
+	 * unmap_page_range and that is risky because notifiers can sleep and
+	 * what they do is basically undeterministic.  So let's have a short
+	 * sleep to give the oom victim some more time.
+	 * TODO: we really want to get rid of this ugly hack and make sure that
+	 * notifiers cannot block for unbounded amount of time and add
+	 * mmu_notifier_invalidate_range_{start,end} around unmap_page_range
+	 */
+	if (mm_has_notifiers(mm)) {
+		up_read(&mm->mmap_sem);
+		schedule_timeout_idle(HZ);
+		goto unlock_oom;
+	}
+
+	/*
 	 * MMF_OOM_SKIP is set by exit_mmap when the OOM reaper can't
 	 * work on the mm anymore. The check for MMF_OOM_SKIP must run
 	 * under mmap_sem for reading because it serializes against the
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 0b9c5cbe8eba..c518c845f202 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1972,31 +1972,31 @@ bool wb_over_bg_thresh(struct bdi_writeback *wb)
 int dirty_writeback_centisecs_handler(struct ctl_table *table, int write,
 	void __user *buffer, size_t *length, loff_t *ppos)
 {
-	proc_dointvec(table, write, buffer, length, ppos);
-	return 0;
+	unsigned int old_interval = dirty_writeback_interval;
+	int ret;
+
+	ret = proc_dointvec(table, write, buffer, length, ppos);
+
+	/*
+	 * Writing 0 to dirty_writeback_interval will disable periodic writeback
+	 * and a different non-zero value will wakeup the writeback threads.
+	 * wb_wakeup_delayed() would be more appropriate, but it's a pain to
+	 * iterate over all bdis and wbs.
+	 * The reason we do this is to make the change take effect immediately.
+	 */
+	if (!ret && write && dirty_writeback_interval &&
+		dirty_writeback_interval != old_interval)
+		wakeup_flusher_threads(WB_REASON_PERIODIC);
+
+	return ret;
 }
 
 #ifdef CONFIG_BLOCK
 void laptop_mode_timer_fn(unsigned long data)
 {
 	struct request_queue *q = (struct request_queue *)data;
-	int nr_pages = global_node_page_state(NR_FILE_DIRTY) +
-		global_node_page_state(NR_UNSTABLE_NFS);
-	struct bdi_writeback *wb;
 
-	/*
-	 * We want to write everything out, not just down to the dirty
-	 * threshold
-	 */
-	if (!bdi_has_dirty_io(q->backing_dev_info))
-		return;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(wb, &q->backing_dev_info->wb_list, bdi_node)
-		if (wb_has_dirty_io(wb))
-			wb_start_writeback(wb, nr_pages, true,
-					   WB_REASON_LAPTOP_TIMER);
-	rcu_read_unlock();
+	wakeup_flusher_threads_bdi(q->backing_dev_info, WB_REASON_LAPTOP_TIMER);
 }
 
 /*
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index c841af88836a..77e4d3c5c57b 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1190,7 +1190,7 @@ static void __meminit __init_single_pfn(unsigned long pfn, unsigned long zone,
 }
 
 #ifdef CONFIG_DEFERRED_STRUCT_PAGE_INIT
-static void init_reserved_page(unsigned long pfn)
+static void __meminit init_reserved_page(unsigned long pfn)
 {
 	pg_data_t *pgdat;
 	int nid, zid;
@@ -5367,6 +5367,7 @@ not_early:
 
 			__init_single_page(page, pfn, zone, nid);
 			set_pageblock_migratetype(page, MIGRATE_MOVABLE);
+			cond_resched();
 		} else {
 			__init_single_pfn(pfn, zone, nid);
 		}
diff --git a/mm/page_counter.c b/mm/page_counter.c
index 7c6a63d2c27f..2a8df3ad60a4 100644
--- a/mm/page_counter.c
+++ b/mm/page_counter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Lockless hierarchical page accounting & limiting
  *
diff --git a/mm/page_ext.c b/mm/page_ext.c
index 32f18911deda..4f0367d472c4 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/mmzone.h>
 #include <linux/bootmem.h>
diff --git a/mm/page_idle.c b/mm/page_idle.c
index 4bd03a8d809e..0a49374e6931 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/bootmem.h>
 #include <linux/fs.h>
diff --git a/mm/page_io.c b/mm/page_io.c
index 21502d341a67..cd52b9cc169b 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/mm/page_io.c
  *
@@ -407,7 +408,7 @@ int swap_readpage(struct page *page, bool do_poll)
 		if (!READ_ONCE(bio->bi_private))
 			break;
 
-		if (!blk_mq_poll(disk->queue, qc))
+		if (!blk_poll(disk->queue, qc))
 			break;
 	}
 	__set_current_state(TASK_RUNNING);
diff --git a/mm/page_isolation.c b/mm/page_isolation.c
index 757410d9f758..44f213935bf6 100644
--- a/mm/page_isolation.c
+++ b/mm/page_isolation.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/mm/page_isolation.c
  */
diff --git a/mm/page_owner.c b/mm/page_owner.c
index 8e2d7137510c..4f44b95b9d1e 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/debugfs.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
@@ -142,7 +143,7 @@ static noinline depot_stack_handle_t save_stack(gfp_t flags)
 		.nr_entries = 0,
 		.entries = entries,
 		.max_entries = PAGE_OWNER_STACK_DEPTH,
-		.skip = 0
+		.skip = 2
 	};
 	depot_stack_handle_t handle;
 
diff --git a/mm/page_poison.c b/mm/page_poison.c
index be19e989ccff..e83fd44867de 100644
--- a/mm/page_poison.c
+++ b/mm/page_poison.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/mm.h>
diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c
index 6a03946469a9..d22b84310f6d 100644
--- a/mm/page_vma_mapped.c
+++ b/mm/page_vma_mapped.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/rmap.h>
 #include <linux/hugetlb.h>
@@ -6,17 +7,6 @@
 
 #include "internal.h"
 
-static inline bool check_pmd(struct page_vma_mapped_walk *pvmw)
-{
-	pmd_t pmde;
-	/*
-	 * Make sure we don't re-load pmd between present and !trans_huge check.
-	 * We need a consistent view.
-	 */
-	pmde = READ_ONCE(*pvmw->pmd);
-	return pmd_present(pmde) && !pmd_trans_huge(pmde);
-}
-
 static inline bool not_found(struct page_vma_mapped_walk *pvmw)
 {
 	page_vma_mapped_walk_done(pvmw);
@@ -116,6 +106,7 @@ bool page_vma_mapped_walk(struct page_vma_mapped_walk *pvmw)
 	pgd_t *pgd;
 	p4d_t *p4d;
 	pud_t *pud;
+	pmd_t pmde;
 
 	/* The only possible pmd mapping has been handled on last iteration */
 	if (pvmw->pmd && !pvmw->pte)
@@ -148,7 +139,13 @@ restart:
 	if (!pud_present(*pud))
 		return false;
 	pvmw->pmd = pmd_offset(pud, pvmw->address);
-	if (pmd_trans_huge(*pvmw->pmd) || is_pmd_migration_entry(*pvmw->pmd)) {
+	/*
+	 * Make sure the pmd value isn't cached in a register by the
+	 * compiler and used as a stale value after we've observed a
+	 * subsequent update.
+	 */
+	pmde = READ_ONCE(*pvmw->pmd);
+	if (pmd_trans_huge(pmde) || is_pmd_migration_entry(pmde)) {
 		pvmw->ptl = pmd_lock(mm, pvmw->pmd);
 		if (likely(pmd_trans_huge(*pvmw->pmd))) {
 			if (pvmw->flags & PVMW_MIGRATION)
@@ -167,17 +164,15 @@ restart:
 						return not_found(pvmw);
 					return true;
 				}
-			} else
-				WARN_ONCE(1, "Non present huge pmd without pmd migration enabled!");
+			}
 			return not_found(pvmw);
 		} else {
 			/* THP pmd was split under us: handle on pte level */
 			spin_unlock(pvmw->ptl);
 			pvmw->ptl = NULL;
 		}
-	} else {
-		if (!check_pmd(pvmw))
-			return false;
+	} else if (!pmd_present(pmde)) {
+		return false;
 	}
 	if (!map_pte(pvmw))
 		goto next_pte;
diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 1a4197965415..8bd4afa83cb8 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/sched.h>
diff --git a/mm/percpu-internal.h b/mm/percpu-internal.h
index 7065faf74b46..b1739dc06b73 100644
--- a/mm/percpu-internal.h
+++ b/mm/percpu-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MM_PERCPU_INTERNAL_H
 #define _MM_PERCPU_INTERNAL_H
 
diff --git a/mm/percpu-stats.c b/mm/percpu-stats.c
index 6142484e88f7..7a58460bfd27 100644
--- a/mm/percpu-stats.c
+++ b/mm/percpu-stats.c
@@ -73,7 +73,7 @@ static void chunk_map_stats(struct seq_file *m, struct pcpu_chunk *chunk,
 		     last_alloc + 1 : 0;
 
 	as_len = 0;
-	start = chunk->start_offset;
+	start = chunk->start_offset / PCPU_MIN_ALLOC_SIZE;
 
 	/*
 	 * If a bit is set in the allocation map, the bound_map identifies
diff --git a/mm/percpu.c b/mm/percpu.c
index 59d44d61f5f1..a0e0c82c1e4c 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -353,6 +353,8 @@ static void pcpu_next_md_free_region(struct pcpu_chunk *chunk, int *bit_off,
 					block->contig_hint_start);
 			return;
 		}
+		/* reset to satisfy the second predicate above */
+		block_off = 0;
 
 		*bits = block->right_free;
 		*bit_off = (i + 1) * PCPU_BITMAP_BLOCK_BITS - block->right_free;
@@ -407,6 +409,8 @@ static void pcpu_next_fit_region(struct pcpu_chunk *chunk, int alloc_bits,
 			*bit_off = pcpu_block_off_to_off(i, block->first_free);
 			return;
 		}
+		/* reset to satisfy the second predicate above */
+		block_off = 0;
 
 		*bit_off = ALIGN(PCPU_BITMAP_BLOCK_BITS - block->right_free,
 				 align);
@@ -1325,7 +1329,9 @@ static struct pcpu_chunk *pcpu_chunk_addr_search(void *addr)
  * @gfp: allocation flags
  *
  * Allocate percpu area of @size bytes aligned at @align.  If @gfp doesn't
- * contain %GFP_KERNEL, the allocation is atomic.
+ * contain %GFP_KERNEL, the allocation is atomic. If @gfp has __GFP_NOWARN
+ * then no warning will be triggered on invalid or failed allocation
+ * requests.
  *
  * RETURNS:
  * Percpu pointer to the allocated area on success, NULL on failure.
@@ -1333,10 +1339,11 @@ static struct pcpu_chunk *pcpu_chunk_addr_search(void *addr)
 static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved,
 				 gfp_t gfp)
 {
+	bool is_atomic = (gfp & GFP_KERNEL) != GFP_KERNEL;
+	bool do_warn = !(gfp & __GFP_NOWARN);
 	static int warn_limit = 10;
 	struct pcpu_chunk *chunk;
 	const char *err;
-	bool is_atomic = (gfp & GFP_KERNEL) != GFP_KERNEL;
 	int slot, off, cpu, ret;
 	unsigned long flags;
 	void __percpu *ptr;
@@ -1357,7 +1364,7 @@ static void __percpu *pcpu_alloc(size_t size, size_t align, bool reserved,
 
 	if (unlikely(!size || size > PCPU_MIN_UNIT_SIZE || align > PAGE_SIZE ||
 		     !is_power_of_2(align))) {
-		WARN(true, "illegal size (%zu) or align (%zu) for percpu allocation\n",
+		WARN(do_warn, "illegal size (%zu) or align (%zu) for percpu allocation\n",
 		     size, align);
 		return NULL;
 	}
@@ -1478,7 +1485,7 @@ fail_unlock:
 fail:
 	trace_percpu_alloc_percpu_fail(reserved, is_atomic, size, align);
 
-	if (!is_atomic && warn_limit) {
+	if (!is_atomic && do_warn && warn_limit) {
 		pr_warn("allocation failed, size=%zu align=%zu atomic=%d, %s\n",
 			size, align, is_atomic, err);
 		dump_stack();
@@ -1503,7 +1510,9 @@ fail:
  *
  * Allocate zero-filled percpu area of @size bytes aligned at @align.  If
  * @gfp doesn't contain %GFP_KERNEL, the allocation doesn't block and can
- * be called from any context but is a lot more likely to fail.
+ * be called from any context but is a lot more likely to fail. If @gfp
+ * has __GFP_NOWARN then no warning will be triggered on invalid or failed
+ * allocation requests.
  *
  * RETURNS:
  * Percpu pointer to the allocated area on success, NULL on failure.
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index 1175f6a24fdb..1e4ee763c190 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  mm/pgtable-generic.c
  *
diff --git a/mm/quicklist.c b/mm/quicklist.c
index daf6ff6e199a..5e98ac78e410 100644
--- a/mm/quicklist.c
+++ b/mm/quicklist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Quicklist support.
  *
diff --git a/mm/rodata_test.c b/mm/rodata_test.c
index 6bb4deb12e78..d908c8769b48 100644
--- a/mm/rodata_test.c
+++ b/mm/rodata_test.c
@@ -14,7 +14,7 @@
 #include <linux/uaccess.h>
 #include <asm/sections.h>
 
-const int rodata_test_data = 0xC3;
+static const int rodata_test_data = 0xC3;
 
 void rodata_test(void)
 {
diff --git a/mm/shmem.c b/mm/shmem.c
index ace53a582be5..07a1d22807be 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3685,7 +3685,7 @@ SYSCALL_DEFINE2(memfd_create,
 	if (len > MFD_NAME_MAX_LEN + 1)
 		return -EINVAL;
 
-	name = kmalloc(len + MFD_NAME_PREFIX_LEN, GFP_TEMPORARY);
+	name = kmalloc(len + MFD_NAME_PREFIX_LEN, GFP_KERNEL);
 	if (!name)
 		return -ENOMEM;
 
diff --git a/mm/slab.c b/mm/slab.c
index 04dec48c3ed7..b7095884fd93 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/mm/slab.c
  * Written by Mark Hemment, 1996/97.
diff --git a/mm/slab.h b/mm/slab.h
index 073362816acc..86d7c7d860f9 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MM_SLAB_H
 #define MM_SLAB_H
 /*
@@ -258,7 +259,7 @@ cache_from_memcg_idx(struct kmem_cache *s, int idx)
 	 * memcg_caches issues a write barrier to match this (see
 	 * memcg_create_kmem_cache()).
 	 */
-	cachep = lockless_dereference(arr->entries[idx]);
+	cachep = READ_ONCE(arr->entries[idx]);
 	rcu_read_unlock();
 
 	return cachep;
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 904a83be82de..0d7fe71ff5e4 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Slab allocator functions that are independent of the allocator strategy
  *
@@ -165,9 +166,9 @@ static int init_memcg_params(struct kmem_cache *s,
 	if (!memcg_nr_cache_ids)
 		return 0;
 
-	arr = kzalloc(sizeof(struct memcg_cache_array) +
-		      memcg_nr_cache_ids * sizeof(void *),
-		      GFP_KERNEL);
+	arr = kvzalloc(sizeof(struct memcg_cache_array) +
+		       memcg_nr_cache_ids * sizeof(void *),
+		       GFP_KERNEL);
 	if (!arr)
 		return -ENOMEM;
 
@@ -178,15 +179,23 @@ static int init_memcg_params(struct kmem_cache *s,
 static void destroy_memcg_params(struct kmem_cache *s)
 {
 	if (is_root_cache(s))
-		kfree(rcu_access_pointer(s->memcg_params.memcg_caches));
+		kvfree(rcu_access_pointer(s->memcg_params.memcg_caches));
+}
+
+static void free_memcg_params(struct rcu_head *rcu)
+{
+	struct memcg_cache_array *old;
+
+	old = container_of(rcu, struct memcg_cache_array, rcu);
+	kvfree(old);
 }
 
 static int update_memcg_params(struct kmem_cache *s, int new_array_size)
 {
 	struct memcg_cache_array *old, *new;
 
-	new = kzalloc(sizeof(struct memcg_cache_array) +
-		      new_array_size * sizeof(void *), GFP_KERNEL);
+	new = kvzalloc(sizeof(struct memcg_cache_array) +
+		       new_array_size * sizeof(void *), GFP_KERNEL);
 	if (!new)
 		return -ENOMEM;
 
@@ -198,7 +207,7 @@ static int update_memcg_params(struct kmem_cache *s, int new_array_size)
 
 	rcu_assign_pointer(s->memcg_params.memcg_caches, new);
 	if (old)
-		kfree_rcu(old, rcu);
+		call_rcu(&old->rcu, free_memcg_params);
 	return 0;
 }
 
diff --git a/mm/slob.c b/mm/slob.c
index a8bd6fa11a66..10249160b693 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SLOB Allocator: Simple List Of Blocks
  *
diff --git a/mm/slub.c b/mm/slub.c
index d39a5d3834b3..1efbb8123037 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SLUB: A slab allocator that limits cache line use instead of queuing
  * objects in per cpu and per node lists.
@@ -4597,7 +4598,7 @@ static int list_locations(struct kmem_cache *s, char *buf,
 	struct kmem_cache_node *n;
 
 	if (!map || !alloc_loc_track(&t, PAGE_SIZE / sizeof(struct location),
-				     GFP_TEMPORARY)) {
+				     GFP_KERNEL)) {
 		kfree(map);
 		return sprintf(buf, "Out of memory\n");
 	}
diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c
index d1a39b8051e0..478ce6d4a2c4 100644
--- a/mm/sparse-vmemmap.c
+++ b/mm/sparse-vmemmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Virtual Memory Map support
  *
diff --git a/mm/sparse.c b/mm/sparse.c
index 83b3bf6461af..60805abf98af 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sparse memory mappings.
  */
@@ -22,8 +23,7 @@
  * 1) mem_section	- memory sections, mem_map's for valid memory
  */
 #ifdef CONFIG_SPARSEMEM_EXTREME
-struct mem_section *mem_section[NR_SECTION_ROOTS]
-	____cacheline_internodealigned_in_smp;
+struct mem_section **mem_section;
 #else
 struct mem_section mem_section[NR_SECTION_ROOTS][SECTIONS_PER_ROOT]
 	____cacheline_internodealigned_in_smp;
@@ -100,7 +100,7 @@ static inline int sparse_index_init(unsigned long section_nr, int nid)
 int __section_nr(struct mem_section* ms)
 {
 	unsigned long root_nr;
-	struct mem_section* root;
+	struct mem_section *root = NULL;
 
 	for (root_nr = 0; root_nr < NR_SECTION_ROOTS; root_nr++) {
 		root = __nr_to_section(root_nr * SECTIONS_PER_ROOT);
@@ -111,7 +111,7 @@ int __section_nr(struct mem_section* ms)
 		     break;
 	}
 
-	VM_BUG_ON(root_nr == NR_SECTION_ROOTS);
+	VM_BUG_ON(!root);
 
 	return (root_nr * SECTIONS_PER_ROOT) + (ms - root);
 }
@@ -207,6 +207,16 @@ void __init memory_present(int nid, unsigned long start, unsigned long end)
 {
 	unsigned long pfn;
 
+#ifdef CONFIG_SPARSEMEM_EXTREME
+	if (unlikely(!mem_section)) {
+		unsigned long size, align;
+
+		size = sizeof(struct mem_section) * NR_SECTION_ROOTS;
+		align = 1 << (INTERNODE_CACHE_SHIFT);
+		mem_section = memblock_virt_alloc(size, align);
+	}
+#endif
+
 	start &= PAGE_SECTION_MASK;
 	mminit_validate_memmodel_limits(&start, &end);
 	for (pfn = start; pfn < end; pfn += PAGES_PER_SECTION) {
@@ -329,11 +339,17 @@ again:
 static void __init check_usemap_section_nr(int nid, unsigned long *usemap)
 {
 	unsigned long usemap_snr, pgdat_snr;
-	static unsigned long old_usemap_snr = NR_MEM_SECTIONS;
-	static unsigned long old_pgdat_snr = NR_MEM_SECTIONS;
+	static unsigned long old_usemap_snr;
+	static unsigned long old_pgdat_snr;
 	struct pglist_data *pgdat = NODE_DATA(nid);
 	int usemap_nid;
 
+	/* First call */
+	if (!old_usemap_snr) {
+		old_usemap_snr = NR_MEM_SECTIONS;
+		old_pgdat_snr = NR_MEM_SECTIONS;
+	}
+
 	usemap_snr = pfn_to_section_nr(__pa(usemap) >> PAGE_SHIFT);
 	pgdat_snr = pfn_to_section_nr(__pa(pgdat) >> PAGE_SHIFT);
 	if (usemap_snr == pgdat_snr)
diff --git a/mm/swap.c b/mm/swap.c
index 9295ae960d66..a77d68f2c1b6 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -575,7 +575,7 @@ static void lru_lazyfree_fn(struct page *page, struct lruvec *lruvec,
 			    void *arg)
 {
 	if (PageLRU(page) && PageAnon(page) && PageSwapBacked(page) &&
-	    !PageUnevictable(page)) {
+	    !PageSwapCache(page) && !PageUnevictable(page)) {
 		bool active = PageActive(page);
 
 		del_page_from_lru_list(page, lruvec,
@@ -665,7 +665,7 @@ void deactivate_file_page(struct page *page)
 void mark_page_lazyfree(struct page *page)
 {
 	if (PageLRU(page) && PageAnon(page) && PageSwapBacked(page) &&
-	    !PageUnevictable(page)) {
+	    !PageSwapCache(page) && !PageUnevictable(page)) {
 		struct pagevec *pvec = &get_cpu_var(lru_lazyfree_pvecs);
 
 		get_page(page);
diff --git a/mm/swap_cgroup.c b/mm/swap_cgroup.c
index fcd2740f4ed7..45affaef3bc6 100644
--- a/mm/swap_cgroup.c
+++ b/mm/swap_cgroup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/swap_cgroup.h>
 #include <linux/vmalloc.h>
 #include <linux/mm.h>
diff --git a/mm/swap_slots.c b/mm/swap_slots.c
index 13a174006b91..d81cfc5a43d5 100644
--- a/mm/swap_slots.c
+++ b/mm/swap_slots.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Manage cache of swap slots to be used for and returned from
  * swap.
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 71ce2d1ccbf7..326439428daf 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/mm/swap_state.c
  *
@@ -39,10 +40,6 @@ struct address_space *swapper_spaces[MAX_SWAPFILES];
 static unsigned int nr_swapper_spaces[MAX_SWAPFILES];
 bool swap_vma_readahead = true;
 
-#define SWAP_RA_MAX_ORDER_DEFAULT	3
-
-static int swap_ra_max_order = SWAP_RA_MAX_ORDER_DEFAULT;
-
 #define SWAP_RA_WIN_SHIFT	(PAGE_SHIFT / 2)
 #define SWAP_RA_HITS_MASK	((1UL << SWAP_RA_WIN_SHIFT) - 1)
 #define SWAP_RA_HITS_MAX	SWAP_RA_HITS_MASK
@@ -242,6 +239,17 @@ int add_to_swap(struct page *page)
 		 * clear SWAP_HAS_CACHE flag.
 		 */
 		goto fail;
+	/*
+	 * Normally the page will be dirtied in unmap because its pte should be
+	 * dirty. A special case is MADV_FREE page. The page'e pte could have
+	 * dirty bit cleared but the page's SwapBacked bit is still set because
+	 * clearing the dirty bit and SwapBacked bit has no lock protected. For
+	 * such page, unmap will not set dirty bit for it, so page reclaim will
+	 * not write the page out. This can cause data corruption when the page
+	 * is swap in later. Always setting the dirty bit for the page solves
+	 * the problem.
+	 */
+	set_page_dirty(page);
 
 	return 1;
 
@@ -653,6 +661,13 @@ struct page *swap_readahead_detect(struct vm_fault *vmf,
 	pte_t *tpte;
 #endif
 
+	max_win = 1 << min_t(unsigned int, READ_ONCE(page_cluster),
+			     SWAP_RA_ORDER_CEILING);
+	if (max_win == 1) {
+		swap_ra->win = 1;
+		return NULL;
+	}
+
 	faddr = vmf->address;
 	entry = pte_to_swp_entry(vmf->orig_pte);
 	if ((unlikely(non_swap_entry(entry))))
@@ -661,12 +676,6 @@ struct page *swap_readahead_detect(struct vm_fault *vmf,
 	if (page)
 		return page;
 
-	max_win = 1 << READ_ONCE(swap_ra_max_order);
-	if (max_win == 1) {
-		swap_ra->win = 1;
-		return NULL;
-	}
-
 	fpfn = PFN_DOWN(faddr);
 	swap_ra_info = GET_SWAP_RA_VAL(vma);
 	pfn = PFN_DOWN(SWAP_RA_ADDR(swap_ra_info));
@@ -775,32 +784,8 @@ static struct kobj_attribute vma_ra_enabled_attr =
 	__ATTR(vma_ra_enabled, 0644, vma_ra_enabled_show,
 	       vma_ra_enabled_store);
 
-static ssize_t vma_ra_max_order_show(struct kobject *kobj,
-				     struct kobj_attribute *attr, char *buf)
-{
-	return sprintf(buf, "%d\n", swap_ra_max_order);
-}
-static ssize_t vma_ra_max_order_store(struct kobject *kobj,
-				      struct kobj_attribute *attr,
-				      const char *buf, size_t count)
-{
-	int err, v;
-
-	err = kstrtoint(buf, 10, &v);
-	if (err || v > SWAP_RA_ORDER_CEILING || v <= 0)
-		return -EINVAL;
-
-	swap_ra_max_order = v;
-
-	return count;
-}
-static struct kobj_attribute vma_ra_max_order_attr =
-	__ATTR(vma_ra_max_order, 0644, vma_ra_max_order_show,
-	       vma_ra_max_order_store);
-
 static struct attribute *swap_attrs[] = {
 	&vma_ra_enabled_attr.attr,
-	&vma_ra_max_order_attr.attr,
 	NULL,
 };
 
diff --git a/mm/swapfile.c b/mm/swapfile.c
index bf91dc9e7a79..e47a21e64764 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2869,6 +2869,7 @@ static struct swap_info_struct *alloc_swap_info(void)
 	p->flags = SWP_USED;
 	spin_unlock(&swap_lock);
 	spin_lock_init(&p->lock);
+	spin_lock_init(&p->cont_lock);
 
 	return p;
 }
@@ -3545,6 +3546,7 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask)
 	head = vmalloc_to_page(si->swap_map + offset);
 	offset &= ~PAGE_MASK;
 
+	spin_lock(&si->cont_lock);
 	/*
 	 * Page allocation does not initialize the page's lru field,
 	 * but it does always reset its private field.
@@ -3564,7 +3566,7 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask)
 		 * a continuation page, free our allocation and use this one.
 		 */
 		if (!(count & COUNT_CONTINUED))
-			goto out;
+			goto out_unlock_cont;
 
 		map = kmap_atomic(list_page) + offset;
 		count = *map;
@@ -3575,11 +3577,13 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask)
 		 * free our allocation and use this one.
 		 */
 		if ((count & ~COUNT_CONTINUED) != SWAP_CONT_MAX)
-			goto out;
+			goto out_unlock_cont;
 	}
 
 	list_add_tail(&page->lru, &head->lru);
 	page = NULL;			/* now it's attached, don't free it */
+out_unlock_cont:
+	spin_unlock(&si->cont_lock);
 out:
 	unlock_cluster(ci);
 	spin_unlock(&si->lock);
@@ -3604,6 +3608,7 @@ static bool swap_count_continued(struct swap_info_struct *si,
 	struct page *head;
 	struct page *page;
 	unsigned char *map;
+	bool ret;
 
 	head = vmalloc_to_page(si->swap_map + offset);
 	if (page_private(head) != SWP_CONTINUED) {
@@ -3611,6 +3616,7 @@ static bool swap_count_continued(struct swap_info_struct *si,
 		return false;		/* need to add count continuation */
 	}
 
+	spin_lock(&si->cont_lock);
 	offset &= ~PAGE_MASK;
 	page = list_entry(head->lru.next, struct page, lru);
 	map = kmap_atomic(page) + offset;
@@ -3631,8 +3637,10 @@ static bool swap_count_continued(struct swap_info_struct *si,
 		if (*map == SWAP_CONT_MAX) {
 			kunmap_atomic(map);
 			page = list_entry(page->lru.next, struct page, lru);
-			if (page == head)
-				return false;	/* add count continuation */
+			if (page == head) {
+				ret = false;	/* add count continuation */
+				goto out;
+			}
 			map = kmap_atomic(page) + offset;
 init_map:		*map = 0;		/* we didn't zero the page */
 		}
@@ -3645,7 +3653,7 @@ init_map:		*map = 0;		/* we didn't zero the page */
 			kunmap_atomic(map);
 			page = list_entry(page->lru.prev, struct page, lru);
 		}
-		return true;			/* incremented */
+		ret = true;			/* incremented */
 
 	} else {				/* decrementing */
 		/*
@@ -3671,8 +3679,11 @@ init_map:		*map = 0;		/* we didn't zero the page */
 			kunmap_atomic(map);
 			page = list_entry(page->lru.prev, struct page, lru);
 		}
-		return count == COUNT_CONTINUED;
+		ret = count == COUNT_CONTINUED;
 	}
+out:
+	spin_unlock(&si->cont_lock);
+	return ret;
 }
 
 /*
diff --git a/mm/vmacache.c b/mm/vmacache.c
index 7ffa0ee341b5..db7596eb6132 100644
--- a/mm/vmacache.c
+++ b/mm/vmacache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2014 Davidlohr Bueso.
  */
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 8a43db6284eb..673942094328 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1695,11 +1695,6 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 	for (i = 0; i < area->nr_pages; i++) {
 		struct page *page;
 
-		if (fatal_signal_pending(current)) {
-			area->nr_pages = i;
-			goto fail_no_warn;
-		}
-
 		if (node == NUMA_NO_NODE)
 			page = alloc_page(alloc_mask|highmem_mask);
 		else
@@ -1723,7 +1718,6 @@ fail:
 	warn_alloc(gfp_mask, NULL,
 			  "vmalloc: allocation failure, allocated %ld of %ld bytes",
 			  (area->nr_pages*PAGE_SIZE), area->size);
-fail_no_warn:
 	vfree(area->addr);
 	return NULL;
 }
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 13d711dd8776..15b483ef6440 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/mm/vmscan.c
  *
@@ -1867,7 +1868,7 @@ shrink_inactive_list(unsigned long nr_to_scan, struct lruvec *lruvec,
 		 * also allow kswapd to start writing pages during reclaim.
 		 */
 		if (stat.nr_unqueued_dirty == nr_taken) {
-			wakeup_flusher_threads(0, WB_REASON_VMSCAN);
+			wakeup_flusher_threads(WB_REASON_VMSCAN);
 			set_bit(PGDAT_DIRTY, &pgdat->flags);
 		}
 
diff --git a/mm/workingset.c b/mm/workingset.c
index 7119cd745ace..b997c9de28f6 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Workingset detection
  *
diff --git a/mm/z3fold.c b/mm/z3fold.c
index 486550df32be..b2ba2ba585f3 100644
--- a/mm/z3fold.c
+++ b/mm/z3fold.c
@@ -250,6 +250,7 @@ static void __release_z3fold_page(struct z3fold_header *zhdr, bool locked)
 
 	WARN_ON(!list_empty(&zhdr->buddy));
 	set_bit(PAGE_STALE, &page->private);
+	clear_bit(NEEDS_COMPACTING, &page->private);
 	spin_lock(&pool->lock);
 	if (!list_empty(&page->lru))
 		list_del(&page->lru);
@@ -303,7 +304,6 @@ static void free_pages_work(struct work_struct *w)
 		list_del(&zhdr->buddy);
 		if (WARN_ON(!test_bit(PAGE_STALE, &page->private)))
 			continue;
-		clear_bit(NEEDS_COMPACTING, &page->private);
 		spin_unlock(&pool->stale_lock);
 		cancel_work_sync(&zhdr->work);
 		free_z3fold_page(page);
@@ -624,10 +624,8 @@ lookup:
 	 * stale pages list. cancel_work_sync() can sleep so we must make
 	 * sure it won't be called in case we're in atomic context.
 	 */
-	if (zhdr && (can_sleep || !work_pending(&zhdr->work) ||
-	    !unlikely(work_busy(&zhdr->work)))) {
+	if (zhdr && (can_sleep || !work_pending(&zhdr->work))) {
 		list_del(&zhdr->buddy);
-		clear_bit(NEEDS_COMPACTING, &page->private);
 		spin_unlock(&pool->stale_lock);
 		if (can_sleep)
 			cancel_work_sync(&zhdr->work);
@@ -875,16 +873,18 @@ static int z3fold_reclaim_page(struct z3fold_pool *pool, unsigned int retries)
 				goto next;
 		}
 next:
+		spin_lock(&pool->lock);
 		if (test_bit(PAGE_HEADLESS, &page->private)) {
 			if (ret == 0) {
+				spin_unlock(&pool->lock);
 				free_z3fold_page(page);
 				return 0;
 			}
 		} else if (kref_put(&zhdr->refcount, release_z3fold_page)) {
 			atomic64_dec(&pool->pages_nr);
+			spin_unlock(&pool->lock);
 			return 0;
 		}
-		spin_lock(&pool->lock);
 
 		/*
 		 * Add to the beginning of LRU.
diff --git a/net/6lowpan/6lowpan_i.h b/net/6lowpan/6lowpan_i.h
index a67caee11929..53cf446ce2e3 100644
--- a/net/6lowpan/6lowpan_i.h
+++ b/net/6lowpan/6lowpan_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __6LOWPAN_I_H
 #define __6LOWPAN_I_H
 
diff --git a/net/6lowpan/Makefile b/net/6lowpan/Makefile
index 12d131ab2324..2247b96dbc75 100644
--- a/net/6lowpan/Makefile
+++ b/net/6lowpan/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_6LOWPAN) += 6lowpan.o
 
 6lowpan-y := core.o iphc.o nhc.o ndisc.o
diff --git a/net/6lowpan/nhc.h b/net/6lowpan/nhc.h
index 803041400136..67951c40734b 100644
--- a/net/6lowpan/nhc.h
+++ b/net/6lowpan/nhc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __6LOWPAN_NHC_H
 #define __6LOWPAN_NHC_H
 
diff --git a/net/802/Makefile b/net/802/Makefile
index 37e654d6615e..19406a87bdaa 100644
--- a/net/802/Makefile
+++ b/net/802/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux 802.x protocol layers.
 #
diff --git a/net/8021q/Makefile b/net/8021q/Makefile
index 7bc8db08d7ef..9b703454b93e 100644
--- a/net/8021q/Makefile
+++ b/net/8021q/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux VLAN layer.
 #
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 9649579b5b9f..4a72ee4e2ae9 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -376,6 +376,9 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
 			dev->name);
 		vlan_vid_add(dev, htons(ETH_P_8021Q), 0);
 	}
+	if (event == NETDEV_DOWN &&
+	    (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
+		vlan_vid_del(dev, htons(ETH_P_8021Q), 0);
 
 	vlan_info = rtnl_dereference(dev->vlan_info);
 	if (!vlan_info)
@@ -423,9 +426,6 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event,
 		struct net_device *tmp;
 		LIST_HEAD(close_list);
 
-		if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
-			vlan_vid_del(dev, htons(ETH_P_8021Q), 0);
-
 		/* Put all VLANs for this dev in the down state too.  */
 		vlan_group_for_each_dev(grp, i, vlandev) {
 			flgs = vlandev->flags;
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index df8bd65dd370..0e7afdf86127 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BEN_VLAN_802_1Q_INC__
 #define __BEN_VLAN_802_1Q_INC__
 
diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c
index e2ed69850489..64aa9f755e1d 100644
--- a/net/8021q/vlan_core.c
+++ b/net/8021q/vlan_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 #include <linux/if_vlan.h>
@@ -21,6 +22,12 @@ bool vlan_do_receive(struct sk_buff **skbp)
 	if (unlikely(!skb))
 		return false;
 
+	if (unlikely(!(vlan_dev->flags & IFF_UP))) {
+		kfree_skb(skb);
+		*skbp = NULL;
+		return false;
+	}
+
 	skb->dev = vlan_dev;
 	if (unlikely(skb->pkt_type == PACKET_OTHERHOST)) {
 		/* Our lower layer thinks this is not local, let's make sure.
diff --git a/net/8021q/vlanproc.h b/net/8021q/vlanproc.h
index 8838a2e92eb6..48cd4b4784e8 100644
--- a/net/8021q/vlanproc.h
+++ b/net/8021q/vlanproc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BEN_VLAN_PROC_INC__
 #define __BEN_VLAN_PROC_INC__
 
diff --git a/net/9p/Makefile b/net/9p/Makefile
index 697ea7caf466..c0486cfc85d9 100644
--- a/net/9p/Makefile
+++ b/net/9p/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_NET_9P) := 9pnet.o
 obj-$(CONFIG_NET_9P_XEN) += 9pnet_xen.o
 obj-$(CONFIG_NET_9P_VIRTIO) += 9pnet_virtio.o
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index ddfa86648f95..903a190319b9 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -272,6 +272,7 @@ static int p9_fd_read(struct p9_client *client, void *v, int len)
 {
 	int ret;
 	struct p9_trans_fd *ts = NULL;
+	loff_t pos;
 
 	if (client && client->status != Disconnected)
 		ts = client->trans;
@@ -282,7 +283,8 @@ static int p9_fd_read(struct p9_client *client, void *v, int len)
 	if (!(ts->rd->f_flags & O_NONBLOCK))
 		p9_debug(P9_DEBUG_ERROR, "blocking read ...\n");
 
-	ret = kernel_read(ts->rd, ts->rd->f_pos, v, len);
+	pos = ts->rd->f_pos;
+	ret = kernel_read(ts->rd, v, len, &pos);
 	if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
 		client->status = Disconnected;
 	return ret;
@@ -420,8 +422,7 @@ error:
 
 static int p9_fd_write(struct p9_client *client, void *v, int len)
 {
-	int ret;
-	mm_segment_t oldfs;
+	ssize_t ret;
 	struct p9_trans_fd *ts = NULL;
 
 	if (client && client->status != Disconnected)
@@ -433,12 +434,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
 	if (!(ts->wr->f_flags & O_NONBLOCK))
 		p9_debug(P9_DEBUG_ERROR, "blocking write ...\n");
 
-	oldfs = get_fs();
-	set_fs(get_ds());
-	/* The cast to a user pointer is valid due to the set_fs() */
-	ret = vfs_write(ts->wr, (__force void __user *)v, len, &ts->wr->f_pos);
-	set_fs(oldfs);
-
+	ret = kernel_write(ts->wr, v, len, &ts->wr->f_pos);
 	if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
 		client->status = Disconnected;
 	return ret;
diff --git a/net/Makefile b/net/Makefile
index ae2fe2283d2f..14fede520840 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the linux networking.
 #
diff --git a/net/appletalk/dev.c b/net/appletalk/dev.c
index e4158b8b926d..284c8e585533 100644
--- a/net/appletalk/dev.c
+++ b/net/appletalk/dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Moved here from drivers/net/net_init.c, which is:
  *	Written 1993,1994,1995 by Donald Becker.
diff --git a/net/appletalk/sysctl_net_atalk.c b/net/appletalk/sysctl_net_atalk.c
index ebb864361f7a..c744a853fa5f 100644
--- a/net/appletalk/sysctl_net_atalk.c
+++ b/net/appletalk/sysctl_net_atalk.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sysctl_net_atalk.c: sysctl interface to net AppleTalk subsystem.
  *
diff --git a/net/atm/Makefile b/net/atm/Makefile
index cc50bd1ff1de..bfec0f2d83b5 100644
--- a/net/atm/Makefile
+++ b/net/atm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ATM Protocol Families.
 #
diff --git a/net/atm/addr.c b/net/atm/addr.c
index dcda35c66f15..0530b63f509a 100644
--- a/net/atm/addr.c
+++ b/net/atm/addr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/addr.c - Local ATM address registry */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/addr.h b/net/atm/addr.h
index 6837e9e7eb13..da3f848411a0 100644
--- a/net/atm/addr.h
+++ b/net/atm/addr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/addr.h - Local ATM address registry */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/atm_misc.c b/net/atm/atm_misc.c
index 876fbe83e2e4..a30b83c1cb3f 100644
--- a/net/atm/atm_misc.c
+++ b/net/atm/atm_misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/atm_misc.c - Various functions for use by ATM drivers */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL ICA */
diff --git a/net/atm/atm_sysfs.c b/net/atm/atm_sysfs.c
index 350bf62b2ae3..5d2fed9f5710 100644
--- a/net/atm/atm_sysfs.c
+++ b/net/atm/atm_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ATM driver model support. */
 
 #include <linux/kernel.h>
diff --git a/net/atm/common.h b/net/atm/common.h
index 959436b87182..d9d583712a91 100644
--- a/net/atm/common.h
+++ b/net/atm/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/common.h - ATM sockets (common part for PVC and SVC) */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/ioctl.c b/net/atm/ioctl.c
index bbd3b639992e..2ff0e5e470e3 100644
--- a/net/atm/ioctl.c
+++ b/net/atm/ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* ATM ioctl handling */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/lec.h b/net/atm/lec.h
index 4149db1b7885..be0e2667bd8c 100644
--- a/net/atm/lec.h
+++ b/net/atm/lec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Lan Emulation client header file
  *
diff --git a/net/atm/lec_arpc.h b/net/atm/lec_arpc.h
index d923f53812a3..1205d8792d28 100644
--- a/net/atm/lec_arpc.h
+++ b/net/atm/lec_arpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Lec arp cache
  *
diff --git a/net/atm/mpc.c b/net/atm/mpc.c
index 5677147209e8..63138c8c2269 100644
--- a/net/atm/mpc.c
+++ b/net/atm/mpc.c
@@ -121,7 +121,7 @@ static struct notifier_block mpoa_notifier = {
 
 struct mpoa_client *mpcs = NULL; /* FIXME */
 static struct atm_mpoa_qos *qos_head = NULL;
-static DEFINE_TIMER(mpc_timer, NULL, 0, 0);
+static DEFINE_TIMER(mpc_timer, NULL);
 
 
 static struct mpoa_client *find_mpc_by_itfnum(int itf)
diff --git a/net/atm/mpc.h b/net/atm/mpc.h
index cfc7b745aa91..454abd07651a 100644
--- a/net/atm/mpc.h
+++ b/net/atm/mpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MPC_H_
 #define _MPC_H_
 
diff --git a/net/atm/mpoa_caches.c b/net/atm/mpoa_caches.c
index 4ccaa16b1eb1..e01450bb32d6 100644
--- a/net/atm/mpoa_caches.c
+++ b/net/atm/mpoa_caches.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <linux/atmmpc.h>
 #include <linux/slab.h>
diff --git a/net/atm/mpoa_caches.h b/net/atm/mpoa_caches.h
index 30fe34841ced..6a266669ebf4 100644
--- a/net/atm/mpoa_caches.h
+++ b/net/atm/mpoa_caches.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MPOA_CACHES_H
 #define MPOA_CACHES_H
 
diff --git a/net/atm/mpoa_proc.c b/net/atm/mpoa_proc.c
index 2df34eb5d65f..8a0c17e1c203 100644
--- a/net/atm/mpoa_proc.c
+++ b/net/atm/mpoa_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define pr_fmt(fmt) KBUILD_MODNAME ":%s: " fmt, __func__
 
 #ifdef CONFIG_PROC_FS
diff --git a/net/atm/proc.c b/net/atm/proc.c
index 4caca2a90ec4..642f9272ab95 100644
--- a/net/atm/proc.c
+++ b/net/atm/proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/proc.c - ATM /proc interface
  *
  * Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA
diff --git a/net/atm/protocols.h b/net/atm/protocols.h
index acdfc856222d..18d4d008bac3 100644
--- a/net/atm/protocols.h
+++ b/net/atm/protocols.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/protocols.h - ATM protocol handler entry points */
 
 /* Written 1995-1997 by Werner Almesberger, EPFL LRC */
diff --git a/net/atm/pvc.c b/net/atm/pvc.c
index 040207ec399f..e1140b3bdcaa 100644
--- a/net/atm/pvc.c
+++ b/net/atm/pvc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/pvc.c - ATM PVC sockets */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/raw.c b/net/atm/raw.c
index 821c0797553d..ee10e8d46185 100644
--- a/net/atm/raw.c
+++ b/net/atm/raw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/raw.c - Raw AAL0 and AAL5 transports */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/resources.c b/net/atm/resources.c
index 918244757b7d..bada395ecdb1 100644
--- a/net/atm/resources.c
+++ b/net/atm/resources.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/resources.c - Statically allocated resources */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/resources.h b/net/atm/resources.h
index 521431e30507..048232e4d4c6 100644
--- a/net/atm/resources.h
+++ b/net/atm/resources.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/resources.h - ATM-related resources */
 
 /* Written 1995-1998 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/signaling.c b/net/atm/signaling.c
index 0a20f6e953ac..6c11cdf4dd4c 100644
--- a/net/atm/signaling.c
+++ b/net/atm/signaling.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/signaling.c - ATM signaling */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/signaling.h b/net/atm/signaling.h
index 08b2a69cc572..2df8220f7ab5 100644
--- a/net/atm/signaling.h
+++ b/net/atm/signaling.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* net/atm/signaling.h - ATM signaling */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/atm/svc.c b/net/atm/svc.c
index 5589de7086af..c458adcbc177 100644
--- a/net/atm/svc.c
+++ b/net/atm/svc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* net/atm/svc.c - ATM SVC sockets */
 
 /* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
diff --git a/net/ax25/Makefile b/net/ax25/Makefile
index 43c46d2cafb6..2e53affc8568 100644
--- a/net/ax25/Makefile
+++ b/net/ax25/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux AX.25 layer.
 #
diff --git a/net/bluetooth/Kconfig b/net/bluetooth/Kconfig
index c18115d22f00..db82a40875e8 100644
--- a/net/bluetooth/Kconfig
+++ b/net/bluetooth/Kconfig
@@ -126,14 +126,4 @@ config BT_DEBUGFS
 	  Provide extensive information about internal Bluetooth states
 	  in debugfs.
 
-config BT_LEGACY_IOCTL
-	bool "Enable legacy ioctl interfaces"
-	depends on BT && BT_BREDR
-	default y
-	help
-	  Enable support for legacy ioctl interfaces.  This is only needed
-	  for old and deprecated applications using direct ioctl calls for
-	  controller management.  Since Linux 3.4 all configuration and
-	  setup is done via mgmt interface and this is no longer needed.
-
 source "drivers/bluetooth/Kconfig"
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index 5d0a113e2e40..fda41c0b4781 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Bluetooth subsystem.
 #
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 0bad296fe0af..65d734c165bd 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -878,7 +878,6 @@ static int hci_sock_release(struct socket *sock)
 	return 0;
 }
 
-#ifdef CONFIG_BT_LEGACY_IOCTL
 static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg)
 {
 	bdaddr_t bdaddr;
@@ -1050,7 +1049,6 @@ done:
 	release_sock(sk);
 	return err;
 }
-#endif
 
 static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
 			 int addr_len)
@@ -1971,11 +1969,7 @@ static const struct proto_ops hci_sock_ops = {
 	.getname	= hci_sock_getname,
 	.sendmsg	= hci_sock_sendmsg,
 	.recvmsg	= hci_sock_recvmsg,
-#ifdef CONFIG_BT_LEGACY_IOCTL
 	.ioctl		= hci_sock_ioctl,
-#else
-	.ioctl		= sock_no_ioctl,
-#endif
 	.poll		= datagram_poll,
 	.listen		= sock_no_listen,
 	.shutdown	= sock_no_shutdown,
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index aa300f3a0d51..d5c7c89ec4d6 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Bluetooth HCI driver model support. */
 
 #include <linux/module.h>
diff --git a/net/bridge/Makefile b/net/bridge/Makefile
index 40b1ede527ca..f760e62a672a 100644
--- a/net/bridge/Makefile
+++ b/net/bridge/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the IEEE 802.1d ethernet bridging layer.
 #
diff --git a/net/bridge/br_mdb.c b/net/bridge/br_mdb.c
index ca01def49af0..31ddff22563e 100644
--- a/net/bridge/br_mdb.c
+++ b/net/bridge/br_mdb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <linux/igmp.h>
 #include <linux/kernel.h>
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index 3bc890716c89..de2152730809 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -573,7 +573,7 @@ static int br_process_vlan_info(struct net_bridge *br,
 		}
 		*vinfo_last = NULL;
 
-		return 0;
+		return err;
 	}
 
 	return br_vlan_info(br, p, cmd, vinfo_curr);
diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
index f6b1c7de059d..9700e0f3307b 100644
--- a/net/bridge/br_switchdev.c
+++ b/net/bridge/br_switchdev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/list.h>
 #include <linux/netdevice.h>
diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile
index be4d0cea78ce..2f28e16de6c7 100644
--- a/net/bridge/netfilter/Makefile
+++ b/net/bridge/netfilter/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the netfilter modules for Link Layer filtering on a bridge.
 #
diff --git a/net/bridge/netfilter/ebtable_broute.c b/net/bridge/netfilter/ebtable_broute.c
index 2585b100ebbb..276b60262981 100644
--- a/net/bridge/netfilter/ebtable_broute.c
+++ b/net/bridge/netfilter/ebtable_broute.c
@@ -65,8 +65,8 @@ static int ebt_broute(struct sk_buff *skb)
 
 static int __net_init broute_net_init(struct net *net)
 {
-	net->xt.broute_table = ebt_register_table(net, &broute_table, NULL);
-	return PTR_ERR_OR_ZERO(net->xt.broute_table);
+	return ebt_register_table(net, &broute_table, NULL,
+				  &net->xt.broute_table);
 }
 
 static void __net_exit broute_net_exit(struct net *net)
diff --git a/net/bridge/netfilter/ebtable_filter.c b/net/bridge/netfilter/ebtable_filter.c
index 45a00dbdbcad..c41da5fac84f 100644
--- a/net/bridge/netfilter/ebtable_filter.c
+++ b/net/bridge/netfilter/ebtable_filter.c
@@ -93,8 +93,8 @@ static const struct nf_hook_ops ebt_ops_filter[] = {
 
 static int __net_init frame_filter_net_init(struct net *net)
 {
-	net->xt.frame_filter = ebt_register_table(net, &frame_filter, ebt_ops_filter);
-	return PTR_ERR_OR_ZERO(net->xt.frame_filter);
+	return ebt_register_table(net, &frame_filter, ebt_ops_filter,
+				  &net->xt.frame_filter);
 }
 
 static void __net_exit frame_filter_net_exit(struct net *net)
diff --git a/net/bridge/netfilter/ebtable_nat.c b/net/bridge/netfilter/ebtable_nat.c
index 57cd5bb154e7..08df7406ecb3 100644
--- a/net/bridge/netfilter/ebtable_nat.c
+++ b/net/bridge/netfilter/ebtable_nat.c
@@ -93,8 +93,8 @@ static const struct nf_hook_ops ebt_ops_nat[] = {
 
 static int __net_init frame_nat_net_init(struct net *net)
 {
-	net->xt.frame_nat = ebt_register_table(net, &frame_nat, ebt_ops_nat);
-	return PTR_ERR_OR_ZERO(net->xt.frame_nat);
+	return ebt_register_table(net, &frame_nat, ebt_ops_nat,
+				  &net->xt.frame_nat);
 }
 
 static void __net_exit frame_nat_net_exit(struct net *net)
diff --git a/net/bridge/netfilter/ebtables.c b/net/bridge/netfilter/ebtables.c
index 83951f978445..3b3dcf719e07 100644
--- a/net/bridge/netfilter/ebtables.c
+++ b/net/bridge/netfilter/ebtables.c
@@ -1169,9 +1169,8 @@ static void __ebt_unregister_table(struct net *net, struct ebt_table *table)
 	kfree(table);
 }
 
-struct ebt_table *
-ebt_register_table(struct net *net, const struct ebt_table *input_table,
-		   const struct nf_hook_ops *ops)
+int ebt_register_table(struct net *net, const struct ebt_table *input_table,
+		       const struct nf_hook_ops *ops, struct ebt_table **res)
 {
 	struct ebt_table_info *newinfo;
 	struct ebt_table *t, *table;
@@ -1183,7 +1182,7 @@ ebt_register_table(struct net *net, const struct ebt_table *input_table,
 	    repl->entries == NULL || repl->entries_size == 0 ||
 	    repl->counters != NULL || input_table->private != NULL) {
 		BUGPRINT("Bad table data for ebt_register_table!!!\n");
-		return ERR_PTR(-EINVAL);
+		return -EINVAL;
 	}
 
 	/* Don't add one table to multiple lists. */
@@ -1252,16 +1251,18 @@ ebt_register_table(struct net *net, const struct ebt_table *input_table,
 	list_add(&table->list, &net->xt.tables[NFPROTO_BRIDGE]);
 	mutex_unlock(&ebt_mutex);
 
+	WRITE_ONCE(*res, table);
+
 	if (!ops)
-		return table;
+		return 0;
 
 	ret = nf_register_net_hooks(net, ops, hweight32(table->valid_hooks));
 	if (ret) {
 		__ebt_unregister_table(net, table);
-		return ERR_PTR(ret);
+		*res = NULL;
 	}
 
-	return table;
+	return ret;
 free_unlock:
 	mutex_unlock(&ebt_mutex);
 free_chainstack:
@@ -1276,7 +1277,7 @@ free_newinfo:
 free_table:
 	kfree(table);
 out:
-	return ERR_PTR(ret);
+	return ret;
 }
 
 void ebt_unregister_table(struct net *net, struct ebt_table *table,
diff --git a/net/caif/Makefile b/net/caif/Makefile
index cc2b51154d03..4f6c0517cdfb 100644
--- a/net/caif/Makefile
+++ b/net/caif/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-$(CONFIG_CAIF_DEBUG)     :=      -DDEBUG
 
 caif-y := caif_dev.o \
diff --git a/net/can/Makefile b/net/can/Makefile
index 10936754e3f2..1242bbbfe57f 100644
--- a/net/can/Makefile
+++ b/net/can/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 #  Makefile for the Linux Controller Area Network core.
 #
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 88edac0f3e36..ecd5c703d11e 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -78,7 +78,7 @@ MODULE_PARM_DESC(stats_timer, "enable timer for statistics (default:on)");
 static struct kmem_cache *rcv_cache __read_mostly;
 
 /* table of registered CAN protocols */
-static const struct can_proto *proto_tab[CAN_NPROTO] __read_mostly;
+static const struct can_proto __rcu *proto_tab[CAN_NPROTO] __read_mostly;
 static DEFINE_MUTEX(proto_tab_lock);
 
 static atomic_t skbcounter = ATOMIC_INIT(0);
@@ -788,7 +788,7 @@ int can_proto_register(const struct can_proto *cp)
 
 	mutex_lock(&proto_tab_lock);
 
-	if (proto_tab[proto]) {
+	if (rcu_access_pointer(proto_tab[proto])) {
 		pr_err("can: protocol %d already registered\n", proto);
 		err = -EBUSY;
 	} else
@@ -812,7 +812,7 @@ void can_proto_unregister(const struct can_proto *cp)
 	int proto = cp->protocol;
 
 	mutex_lock(&proto_tab_lock);
-	BUG_ON(proto_tab[proto] != cp);
+	BUG_ON(rcu_access_pointer(proto_tab[proto]) != cp);
 	RCU_INIT_POINTER(proto_tab[proto], NULL);
 	mutex_unlock(&proto_tab_lock);
 
@@ -875,9 +875,14 @@ static int can_pernet_init(struct net *net)
 	spin_lock_init(&net->can.can_rcvlists_lock);
 	net->can.can_rx_alldev_list =
 		kzalloc(sizeof(struct dev_rcv_lists), GFP_KERNEL);
-
+	if (!net->can.can_rx_alldev_list)
+		goto out;
 	net->can.can_stats = kzalloc(sizeof(struct s_stats), GFP_KERNEL);
+	if (!net->can.can_stats)
+		goto out_free_alldev_list;
 	net->can.can_pstats = kzalloc(sizeof(struct s_pstats), GFP_KERNEL);
+	if (!net->can.can_pstats)
+		goto out_free_can_stats;
 
 	if (IS_ENABLED(CONFIG_PROC_FS)) {
 		/* the statistics are updated every second (timer triggered) */
@@ -892,6 +897,13 @@ static int can_pernet_init(struct net *net)
 	}
 
 	return 0;
+
+ out_free_can_stats:
+	kfree(net->can.can_stats);
+ out_free_alldev_list:
+	kfree(net->can.can_rx_alldev_list);
+ out:
+	return -ENOMEM;
 }
 
 static void can_pernet_exit(struct net *net)
diff --git a/net/can/bcm.c b/net/can/bcm.c
index 47a8748d953a..13690334efa3 100644
--- a/net/can/bcm.c
+++ b/net/can/bcm.c
@@ -1493,13 +1493,14 @@ static int bcm_init(struct sock *sk)
 static int bcm_release(struct socket *sock)
 {
 	struct sock *sk = sock->sk;
-	struct net *net = sock_net(sk);
+	struct net *net;
 	struct bcm_sock *bo;
 	struct bcm_op *op, *next;
 
-	if (sk == NULL)
+	if (!sk)
 		return 0;
 
+	net = sock_net(sk);
 	bo = bcm_sk(sk);
 
 	/* remove bcm_ops, timer, rx_unregister(), etc. */
diff --git a/net/ceph/Makefile b/net/ceph/Makefile
index 6a5180903e7b..b4bded4b5396 100644
--- a/net/ceph/Makefile
+++ b/net/ceph/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for CEPH filesystem.
 #
diff --git a/net/ceph/armor.c b/net/ceph/armor.c
index 1fc1ee11dfa2..0db8065928df 100644
--- a/net/ceph/armor.c
+++ b/net/ceph/armor.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/errno.h>
 
diff --git a/net/ceph/auth.c b/net/ceph/auth.c
index 48bb8d95195b..dbde2b3c3c15 100644
--- a/net/ceph/auth.c
+++ b/net/ceph/auth.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/module.h>
diff --git a/net/ceph/auth_none.c b/net/ceph/auth_none.c
index df45e467c81f..41d2a0c72236 100644
--- a/net/ceph/auth_none.c
+++ b/net/ceph/auth_none.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/ceph/ceph_debug.h>
 
diff --git a/net/ceph/auth_none.h b/net/ceph/auth_none.h
index 62021535ae4a..860ed9875791 100644
--- a/net/ceph/auth_none.h
+++ b/net/ceph/auth_none.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_AUTH_NONE_H
 #define _FS_CEPH_AUTH_NONE_H
 
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index 8757fb87dab8..2f4a1baf5f52 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/ceph/ceph_debug.h>
 
diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h
index 48e9ad41bd2a..454cb54568af 100644
--- a/net/ceph/auth_x.h
+++ b/net/ceph/auth_x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_AUTH_X_H
 #define _FS_CEPH_AUTH_X_H
 
diff --git a/net/ceph/auth_x_protocol.h b/net/ceph/auth_x_protocol.h
index 671d30576c4f..32c13d763b9a 100644
--- a/net/ceph/auth_x_protocol.h
+++ b/net/ceph/auth_x_protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __FS_CEPH_AUTH_X_PROTOCOL
 #define __FS_CEPH_AUTH_X_PROTOCOL
 
diff --git a/net/ceph/buffer.c b/net/ceph/buffer.c
index add5f921a0ff..5622763ad402 100644
--- a/net/ceph/buffer.c
+++ b/net/ceph/buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/ceph/ceph_debug.h>
 
diff --git a/net/ceph/ceph_fs.c b/net/ceph/ceph_fs.c
index dcbe67ff3e2b..756a2dc10d27 100644
--- a/net/ceph/ceph_fs.c
+++ b/net/ceph/ceph_fs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Some non-inline ceph helpers
  */
diff --git a/net/ceph/ceph_strings.c b/net/ceph/ceph_strings.c
index 19b7d8aa915c..10e01494993c 100644
--- a/net/ceph/ceph_strings.c
+++ b/net/ceph/ceph_strings.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Ceph string constants
  */
diff --git a/net/ceph/cls_lock_client.c b/net/ceph/cls_lock_client.c
index 08ada893f01e..8d2032b2f225 100644
--- a/net/ceph/cls_lock_client.c
+++ b/net/ceph/cls_lock_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/types.h>
diff --git a/net/ceph/crush/crush.c b/net/ceph/crush/crush.c
index 4b428f46a8ca..3d70244bc1b6 100644
--- a/net/ceph/crush/crush.c
+++ b/net/ceph/crush/crush.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifdef __KERNEL__
 # include <linux/slab.h>
 # include <linux/crush/crush.h>
diff --git a/net/ceph/crush/hash.c b/net/ceph/crush/hash.c
index ed123af49eba..e5cc603cdb17 100644
--- a/net/ceph/crush/hash.c
+++ b/net/ceph/crush/hash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifdef __KERNEL__
 # include <linux/crush/hash.h>
 #else
diff --git a/net/ceph/crypto.c b/net/ceph/crypto.c
index 46008d5ac504..489610ac1cdd 100644
--- a/net/ceph/crypto.c
+++ b/net/ceph/crypto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/ceph/ceph_debug.h>
 
diff --git a/net/ceph/crypto.h b/net/ceph/crypto.h
index 58d83aa7740f..bb45c7d43739 100644
--- a/net/ceph/crypto.h
+++ b/net/ceph/crypto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FS_CEPH_CRYPTO_H
 #define _FS_CEPH_CRYPTO_H
 
diff --git a/net/ceph/debugfs.c b/net/ceph/debugfs.c
index fa5233e0d01c..1eef6806aa1a 100644
--- a/net/ceph/debugfs.c
+++ b/net/ceph/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/device.h>
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index a67298c7e0cd..ad93342c90d7 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/crc32c.h>
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 63edc6e5f026..9ae1bab8c05d 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/module.h>
diff --git a/net/ceph/msgpool.c b/net/ceph/msgpool.c
index aaed59a47b1d..72571535883f 100644
--- a/net/ceph/msgpool.c
+++ b/net/ceph/msgpool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/err.h>
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index e02f01f534e2..2814dba5902d 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/ceph/ceph_debug.h>
 
diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c
index f358d0bfa76b..0da27c66349a 100644
--- a/net/ceph/osdmap.c
+++ b/net/ceph/osdmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <linux/ceph/ceph_debug.h>
 
@@ -2445,19 +2446,34 @@ static void apply_upmap(struct ceph_osdmap *osdmap,
 
 	pg = lookup_pg_mapping(&osdmap->pg_upmap_items, pgid);
 	if (pg) {
-		for (i = 0; i < raw->size; i++) {
-			for (j = 0; j < pg->pg_upmap_items.len; j++) {
-				int from = pg->pg_upmap_items.from_to[j][0];
-				int to = pg->pg_upmap_items.from_to[j][1];
-
-				if (from == raw->osds[i]) {
-					if (!(to != CRUSH_ITEM_NONE &&
-					      to < osdmap->max_osd &&
-					      osdmap->osd_weight[to] == 0))
-						raw->osds[i] = to;
+		/*
+		 * Note: this approach does not allow a bidirectional swap,
+		 * e.g., [[1,2],[2,1]] applied to [0,1,2] -> [0,2,1].
+		 */
+		for (i = 0; i < pg->pg_upmap_items.len; i++) {
+			int from = pg->pg_upmap_items.from_to[i][0];
+			int to = pg->pg_upmap_items.from_to[i][1];
+			int pos = -1;
+			bool exists = false;
+
+			/* make sure replacement doesn't already appear */
+			for (j = 0; j < raw->size; j++) {
+				int osd = raw->osds[j];
+
+				if (osd == to) {
+					exists = true;
 					break;
 				}
+				/* ignore mapping if target is marked out */
+				if (osd == from && pos < 0 &&
+				    !(to != CRUSH_ITEM_NONE &&
+				      to < osdmap->max_osd &&
+				      osdmap->osd_weight[to] == 0)) {
+					pos = j;
+				}
 			}
+			if (!exists && pos >= 0)
+				raw->osds[pos] = to;
 		}
 	}
 }
diff --git a/net/ceph/pagelist.c b/net/ceph/pagelist.c
index ce09f73be759..2ea0564771d2 100644
--- a/net/ceph/pagelist.c
+++ b/net/ceph/pagelist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c
index 1a7c9a79a53c..ee43bc13221c 100644
--- a/net/ceph/pagevec.c
+++ b/net/ceph/pagevec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ceph/ceph_debug.h>
 
 #include <linux/module.h>
diff --git a/net/ceph/string_table.c b/net/ceph/string_table.c
index 22fb96efcf34..3191d9d160a2 100644
--- a/net/ceph/string_table.c
+++ b/net/ceph/string_table.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/slab.h>
 #include <linux/gfp.h>
 #include <linux/string.h>
diff --git a/net/compat.c b/net/compat.c
index 6ded6c821d7a..22381719718c 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -185,6 +185,13 @@ int cmsghdr_from_user_compat_to_kern(struct msghdr *kmsg, struct sock *sk,
 		ucmsg = cmsg_compat_nxthdr(kmsg, ucmsg, ucmlen);
 	}
 
+	/*
+	 * check the length of messages copied in is the same as the
+	 * what we get from the first loop
+	 */
+	if ((char *)kcmsg - (char *)kcmsg_base != kcmlen)
+		goto Einval;
+
 	/* Ok, looks like we made it.  Hook it up and return success. */
 	kmsg->msg_control = kcmsg_base;
 	kmsg->msg_controllen = kcmlen;
diff --git a/net/core/Makefile b/net/core/Makefile
index 56d771a887b6..1fd0a9c88b1b 100644
--- a/net/core/Makefile
+++ b/net/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux networking core.
 #
diff --git a/net/core/datagram.c b/net/core/datagram.c
index f7fb7e3f2acf..3964c108b169 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	SUCS NET3:
  *
diff --git a/net/core/dev.c b/net/core/dev.c
index fb766d906148..61559ca3980b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1147,9 +1147,8 @@ static int dev_alloc_name_ns(struct net *net,
 	return ret;
 }
 
-static int dev_get_valid_name(struct net *net,
-			      struct net_device *dev,
-			      const char *name)
+int dev_get_valid_name(struct net *net, struct net_device *dev,
+		       const char *name)
 {
 	BUG_ON(!net);
 
@@ -1165,6 +1164,7 @@ static int dev_get_valid_name(struct net *net,
 
 	return 0;
 }
+EXPORT_SYMBOL(dev_get_valid_name);
 
 /**
  *	dev_change_name - change name of a device
@@ -1948,8 +1948,12 @@ again:
 		goto again;
 	}
 out_unlock:
-	if (pt_prev)
-		pt_prev->func(skb2, skb->dev, pt_prev, skb->dev);
+	if (pt_prev) {
+		if (!skb_orphan_frags_rx(skb2, GFP_ATOMIC))
+			pt_prev->func(skb2, skb->dev, pt_prev, skb->dev);
+		else
+			kfree_skb(skb2);
+	}
 	rcu_read_unlock();
 }
 EXPORT_SYMBOL_GPL(dev_queue_xmit_nit);
@@ -3721,7 +3725,7 @@ bool rps_may_expire_flow(struct net_device *dev, u16 rxq_index,
 	flow_table = rcu_dereference(rxqueue->rps_flow_table);
 	if (flow_table && flow_id <= flow_table->mask) {
 		rflow = &flow_table->flows[flow_id];
-		cpu = ACCESS_ONCE(rflow->cpu);
+		cpu = READ_ONCE(rflow->cpu);
 		if (rflow->filter == filter_id && cpu < nr_cpu_ids &&
 		    ((int)(per_cpu(softnet_data, cpu).input_queue_head -
 			   rflow->last_qtail) <
@@ -3892,6 +3896,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb,
 		__skb_pull(skb, off);
 	else if (off < 0)
 		__skb_push(skb, -off);
+	skb->mac_header += off;
 
 	switch (act) {
 	case XDP_REDIRECT:
diff --git a/net/core/dev_ioctl.c b/net/core/dev_ioctl.c
index 709a4e6fb447..7e690d0ccd05 100644
--- a/net/core/dev_ioctl.c
+++ b/net/core/dev_ioctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kmod.h>
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
@@ -303,7 +304,18 @@ static int dev_ifsioc(struct net *net, struct ifreq *ifr, unsigned int cmd)
 	case SIOCSIFTXQLEN:
 		if (ifr->ifr_qlen < 0)
 			return -EINVAL;
-		dev->tx_queue_len = ifr->ifr_qlen;
+		if (dev->tx_queue_len ^ ifr->ifr_qlen) {
+			unsigned int orig_len = dev->tx_queue_len;
+
+			dev->tx_queue_len = ifr->ifr_qlen;
+			err = call_netdevice_notifiers(
+					NETDEV_CHANGE_TX_QUEUE_LEN, dev);
+			err = notifier_to_errno(err);
+			if (err) {
+				dev->tx_queue_len = orig_len;
+				return err;
+			}
+		}
 		return 0;
 
 	case SIOCSIFNAME:
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 6a582ae4c5d9..9a9a3d77e327 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -436,7 +436,7 @@ bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
 EXPORT_SYMBOL(ethtool_convert_link_mode_to_legacy_u32);
 
 /* return false if legacy contained non-0 deprecated fields
- * transceiver/maxtxpkt/maxrxpkt. rest of ksettings always updated
+ * maxtxpkt/maxrxpkt. rest of ksettings always updated
  */
 static bool
 convert_legacy_settings_to_link_ksettings(
@@ -451,8 +451,7 @@ convert_legacy_settings_to_link_ksettings(
 	 * deprecated legacy fields, and they should not use
 	 * %ETHTOOL_GLINKSETTINGS/%ETHTOOL_SLINKSETTINGS
 	 */
-	if (legacy_settings->transceiver ||
-	    legacy_settings->maxtxpkt ||
+	if (legacy_settings->maxtxpkt ||
 	    legacy_settings->maxrxpkt)
 		retval = false;
 
@@ -525,6 +524,8 @@ convert_link_ksettings_to_legacy_settings(
 		= link_ksettings->base.eth_tp_mdix;
 	legacy_settings->eth_tp_mdix_ctrl
 		= link_ksettings->base.eth_tp_mdix_ctrl;
+	legacy_settings->transceiver
+		= link_ksettings->base.transceiver;
 	return retval;
 }
 
diff --git a/net/core/filter.c b/net/core/filter.c
index 3a50a9b021e2..6ae94f825f72 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -989,10 +989,14 @@ static bool __sk_filter_charge(struct sock *sk, struct sk_filter *fp)
 
 bool sk_filter_charge(struct sock *sk, struct sk_filter *fp)
 {
-	bool ret = __sk_filter_charge(sk, fp);
-	if (ret)
-		refcount_inc(&fp->refcnt);
-	return ret;
+	if (!refcount_inc_not_zero(&fp->refcnt))
+		return false;
+
+	if (!__sk_filter_charge(sk, fp)) {
+		sk_filter_release(fp);
+		return false;
+	}
+	return true;
 }
 
 static struct bpf_prog *bpf_migrate_filter(struct bpf_prog *fp)
@@ -1794,7 +1798,7 @@ struct redirect_info {
 	u32 flags;
 	struct bpf_map *map;
 	struct bpf_map *map_to_flush;
-	const struct bpf_prog *map_owner;
+	unsigned long   map_owner;
 };
 
 static DEFINE_PER_CPU(struct redirect_info, redirect_info);
@@ -1835,31 +1839,32 @@ static const struct bpf_func_proto bpf_redirect_proto = {
 	.arg2_type      = ARG_ANYTHING,
 };
 
-BPF_CALL_3(bpf_sk_redirect_map, struct bpf_map *, map, u32, key, u64, flags)
+BPF_CALL_4(bpf_sk_redirect_map, struct sk_buff *, skb,
+	   struct bpf_map *, map, u32, key, u64, flags)
 {
-	struct redirect_info *ri = this_cpu_ptr(&redirect_info);
+	struct tcp_skb_cb *tcb = TCP_SKB_CB(skb);
 
+	/* If user passes invalid input drop the packet. */
 	if (unlikely(flags))
-		return SK_ABORTED;
+		return SK_DROP;
 
-	ri->ifindex = key;
-	ri->flags = flags;
-	ri->map = map;
+	tcb->bpf.key = key;
+	tcb->bpf.flags = flags;
+	tcb->bpf.map = map;
 
-	return SK_REDIRECT;
+	return SK_PASS;
 }
 
-struct sock *do_sk_redirect_map(void)
+struct sock *do_sk_redirect_map(struct sk_buff *skb)
 {
-	struct redirect_info *ri = this_cpu_ptr(&redirect_info);
+	struct tcp_skb_cb *tcb = TCP_SKB_CB(skb);
 	struct sock *sk = NULL;
 
-	if (ri->map) {
-		sk = __sock_map_lookup_elem(ri->map, ri->ifindex);
+	if (tcb->bpf.map) {
+		sk = __sock_map_lookup_elem(tcb->bpf.map, tcb->bpf.key);
 
-		ri->ifindex = 0;
-		ri->map = NULL;
-		/* we do not clear flags for future lookup */
+		tcb->bpf.key = 0;
+		tcb->bpf.map = NULL;
 	}
 
 	return sk;
@@ -1869,9 +1874,10 @@ static const struct bpf_func_proto bpf_sk_redirect_map_proto = {
 	.func           = bpf_sk_redirect_map,
 	.gpl_only       = false,
 	.ret_type       = RET_INTEGER,
-	.arg1_type      = ARG_CONST_MAP_PTR,
-	.arg2_type      = ARG_ANYTHING,
+	.arg1_type	= ARG_PTR_TO_CTX,
+	.arg2_type      = ARG_CONST_MAP_PTR,
 	.arg3_type      = ARG_ANYTHING,
+	.arg4_type      = ARG_ANYTHING,
 };
 
 BPF_CALL_1(bpf_get_cgroup_classid, const struct sk_buff *, skb)
@@ -2500,27 +2506,31 @@ void xdp_do_flush_map(void)
 }
 EXPORT_SYMBOL_GPL(xdp_do_flush_map);
 
+static inline bool xdp_map_invalid(const struct bpf_prog *xdp_prog,
+				   unsigned long aux)
+{
+	return (unsigned long)xdp_prog->aux != aux;
+}
+
 static int xdp_do_redirect_map(struct net_device *dev, struct xdp_buff *xdp,
 			       struct bpf_prog *xdp_prog)
 {
 	struct redirect_info *ri = this_cpu_ptr(&redirect_info);
-	const struct bpf_prog *map_owner = ri->map_owner;
+	unsigned long map_owner = ri->map_owner;
 	struct bpf_map *map = ri->map;
+	struct net_device *fwd = NULL;
 	u32 index = ri->ifindex;
-	struct net_device *fwd;
 	int err;
 
 	ri->ifindex = 0;
 	ri->map = NULL;
-	ri->map_owner = NULL;
+	ri->map_owner = 0;
 
-	/* This is really only caused by a deliberately crappy
-	 * BPF program, normally we would never hit that case,
-	 * so no need to inform someone via tracepoints either,
-	 * just bail out.
-	 */
-	if (unlikely(map_owner != xdp_prog))
-		return -EINVAL;
+	if (unlikely(xdp_map_invalid(xdp_prog, map_owner))) {
+		err = -EFAULT;
+		map = NULL;
+		goto err;
+	}
 
 	fwd = __dev_map_lookup_elem(map, index);
 	if (!fwd) {
@@ -2576,13 +2586,27 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
 			    struct bpf_prog *xdp_prog)
 {
 	struct redirect_info *ri = this_cpu_ptr(&redirect_info);
+	unsigned long map_owner = ri->map_owner;
+	struct bpf_map *map = ri->map;
+	struct net_device *fwd = NULL;
 	u32 index = ri->ifindex;
-	struct net_device *fwd;
 	unsigned int len;
 	int err = 0;
 
-	fwd = dev_get_by_index_rcu(dev_net(dev), index);
 	ri->ifindex = 0;
+	ri->map = NULL;
+	ri->map_owner = 0;
+
+	if (map) {
+		if (unlikely(xdp_map_invalid(xdp_prog, map_owner))) {
+			err = -EFAULT;
+			map = NULL;
+			goto err;
+		}
+		fwd = __dev_map_lookup_elem(map, index);
+	} else {
+		fwd = dev_get_by_index_rcu(dev_net(dev), index);
+	}
 	if (unlikely(!fwd)) {
 		err = -EINVAL;
 		goto err;
@@ -2600,10 +2624,12 @@ int xdp_do_generic_redirect(struct net_device *dev, struct sk_buff *skb,
 	}
 
 	skb->dev = fwd;
-	_trace_xdp_redirect(dev, xdp_prog, index);
+	map ? _trace_xdp_redirect_map(dev, xdp_prog, fwd, map, index)
+		: _trace_xdp_redirect(dev, xdp_prog, index);
 	return 0;
 err:
-	_trace_xdp_redirect_err(dev, xdp_prog, index, err);
+	map ? _trace_xdp_redirect_map_err(dev, xdp_prog, fwd, map, index, err)
+		: _trace_xdp_redirect_err(dev, xdp_prog, index, err);
 	return err;
 }
 EXPORT_SYMBOL_GPL(xdp_do_generic_redirect);
@@ -2618,7 +2644,7 @@ BPF_CALL_2(bpf_xdp_redirect, u32, ifindex, u64, flags)
 	ri->ifindex = ifindex;
 	ri->flags = flags;
 	ri->map = NULL;
-	ri->map_owner = NULL;
+	ri->map_owner = 0;
 
 	return XDP_REDIRECT;
 }
@@ -2632,7 +2658,7 @@ static const struct bpf_func_proto bpf_xdp_redirect_proto = {
 };
 
 BPF_CALL_4(bpf_xdp_redirect_map, struct bpf_map *, map, u32, ifindex, u64, flags,
-	   const struct bpf_prog *, map_owner)
+	   unsigned long, map_owner)
 {
 	struct redirect_info *ri = this_cpu_ptr(&redirect_info);
 
@@ -3659,7 +3685,6 @@ static bool sk_skb_is_valid_access(int off, int size,
 {
 	if (type == BPF_WRITE) {
 		switch (off) {
-		case bpf_ctx_range(struct __sk_buff, mark):
 		case bpf_ctx_range(struct __sk_buff, tc_index):
 		case bpf_ctx_range(struct __sk_buff, priority):
 			break;
@@ -3669,6 +3694,7 @@ static bool sk_skb_is_valid_access(int off, int size,
 	}
 
 	switch (off) {
+	case bpf_ctx_range(struct __sk_buff, mark):
 	case bpf_ctx_range(struct __sk_buff, tc_classid):
 		return false;
 	case bpf_ctx_range(struct __sk_buff, data):
@@ -4218,6 +4244,31 @@ static u32 sock_ops_convert_ctx_access(enum bpf_access_type type,
 	return insn - insn_buf;
 }
 
+static u32 sk_skb_convert_ctx_access(enum bpf_access_type type,
+				     const struct bpf_insn *si,
+				     struct bpf_insn *insn_buf,
+				     struct bpf_prog *prog, u32 *target_size)
+{
+	struct bpf_insn *insn = insn_buf;
+	int off;
+
+	switch (si->off) {
+	case offsetof(struct __sk_buff, data_end):
+		off  = si->off;
+		off -= offsetof(struct __sk_buff, data_end);
+		off += offsetof(struct sk_buff, cb);
+		off += offsetof(struct tcp_skb_cb, bpf.data_end);
+		*insn++ = BPF_LDX_MEM(BPF_SIZEOF(void *), si->dst_reg,
+				      si->src_reg, off);
+		break;
+	default:
+		return bpf_convert_ctx_access(type, si, insn_buf, prog,
+					      target_size);
+	}
+
+	return insn - insn_buf;
+}
+
 const struct bpf_verifier_ops sk_filter_prog_ops = {
 	.get_func_proto		= sk_filter_func_proto,
 	.is_valid_access	= sk_filter_is_valid_access,
@@ -4276,7 +4327,7 @@ const struct bpf_verifier_ops sock_ops_prog_ops = {
 const struct bpf_verifier_ops sk_skb_prog_ops = {
 	.get_func_proto		= sk_skb_func_proto,
 	.is_valid_access	= sk_skb_is_valid_access,
-	.convert_ctx_access	= bpf_convert_ctx_access,
+	.convert_ctx_access	= sk_skb_convert_ctx_access,
 	.gen_prologue		= sk_skb_prologue,
 };
 
diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index 0385dece1f6f..7c1ffd6f9501 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -83,10 +83,10 @@ static void est_timer(unsigned long arg)
 	u64 rate, brate;
 
 	est_fetch_counters(est, &b);
-	brate = (b.bytes - est->last_bytes) << (8 - est->ewma_log);
+	brate = (b.bytes - est->last_bytes) << (10 - est->ewma_log - est->intvl_log);
 	brate -= (est->avbps >> est->ewma_log);
 
-	rate = (u64)(b.packets - est->last_packets) << (8 - est->ewma_log);
+	rate = (u64)(b.packets - est->last_packets) << (10 - est->ewma_log - est->intvl_log);
 	rate -= (est->avpps >> est->ewma_log);
 
 	write_seqcount_begin(&est->seq);
diff --git a/net/core/gro_cells.c b/net/core/gro_cells.c
index 814e58a3ce8b..4b54e5f107c6 100644
--- a/net/core/gro_cells.c
+++ b/net/core/gro_cells.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/skbuff.h>
 #include <linux/slab.h>
 #include <linux/netdevice.h>
diff --git a/net/core/net-procfs.c b/net/core/net-procfs.c
index 4847964931df..615ccab55f38 100644
--- a/net/core/net-procfs.c
+++ b/net/core/net-procfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/netdevice.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
diff --git a/net/core/net-sysfs.h b/net/core/net-sysfs.h
index 2745a1b51e03..006876c7b78d 100644
--- a/net/core/net-sysfs.h
+++ b/net/core/net-sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_SYSFS_H__
 #define __NET_SYSFS_H__
 
diff --git a/net/core/net-traces.c b/net/core/net-traces.c
index 1132820c8e62..71f209542364 100644
--- a/net/core/net-traces.c
+++ b/net/core/net-traces.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * consolidates trace point definitions
  *
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 912731bed7b7..57557a6a950c 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -334,7 +334,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
 	/* It is up to the caller to keep npinfo alive. */
 	struct netpoll_info *npinfo;
 
-	WARN_ON_ONCE(!irqs_disabled());
+	lockdep_assert_irqs_disabled();
 
 	npinfo = rcu_dereference_bh(np->dev->npinfo);
 	if (!npinfo || !netif_running(dev) || !netif_device_present(dev)) {
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 6e1e10ff433a..3b2034f6d49d 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -3377,7 +3377,7 @@ static void pktgen_wait_for_skb(struct pktgen_dev *pkt_dev)
 
 static void pktgen_xmit(struct pktgen_dev *pkt_dev)
 {
-	unsigned int burst = ACCESS_ONCE(pkt_dev->burst);
+	unsigned int burst = READ_ONCE(pkt_dev->burst);
 	struct net_device *odev = pkt_dev->odev;
 	struct netdev_queue *txq;
 	struct sk_buff *skb;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index a78fd61da0ec..5ace48926b19 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1483,7 +1483,10 @@ static const struct nla_policy ifla_policy[IFLA_MAX+1] = {
 	[IFLA_LINKINFO]		= { .type = NLA_NESTED },
 	[IFLA_NET_NS_PID]	= { .type = NLA_U32 },
 	[IFLA_NET_NS_FD]	= { .type = NLA_U32 },
-	[IFLA_IFALIAS]	        = { .type = NLA_STRING, .len = IFALIASZ-1 },
+	/* IFLA_IFALIAS is a string, but policy is set to NLA_BINARY to
+	 * allow 0-length string (needed to remove an alias).
+	 */
+	[IFLA_IFALIAS]	        = { .type = NLA_BINARY, .len = IFALIASZ - 1 },
 	[IFLA_VFINFO_LIST]	= {. type = NLA_NESTED },
 	[IFLA_VF_PORTS]		= { .type = NLA_NESTED },
 	[IFLA_PORT_SELF]	= { .type = NLA_NESTED },
@@ -2093,7 +2096,7 @@ static int do_setlink(const struct sk_buff *skb,
 				dev->tx_queue_len = orig_len;
 				goto errout;
 			}
-			status |= DO_SETLINK_NOTIFY;
+			status |= DO_SETLINK_MODIFIED;
 		}
 	}
 
@@ -2248,7 +2251,7 @@ static int do_setlink(const struct sk_buff *skb,
 
 errout:
 	if (status & DO_SETLINK_MODIFIED) {
-		if (status & DO_SETLINK_NOTIFY)
+		if ((status & DO_SETLINK_NOTIFY) == DO_SETLINK_NOTIFY)
 			netdev_state_change(dev);
 
 		if (err < 0)
@@ -3854,6 +3857,9 @@ static int rtnl_fill_statsinfo(struct sk_buff *skb, struct net_device *dev,
 		return -EMSGSIZE;
 
 	ifsm = nlmsg_data(nlh);
+	ifsm->family = PF_UNSPEC;
+	ifsm->pad1 = 0;
+	ifsm->pad2 = 0;
 	ifsm->ifindex = dev->ifindex;
 	ifsm->filter_mask = filter_mask;
 
@@ -4276,13 +4282,17 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
 
 	switch (event) {
 	case NETDEV_REBOOT:
+	case NETDEV_CHANGEMTU:
 	case NETDEV_CHANGEADDR:
 	case NETDEV_CHANGENAME:
 	case NETDEV_FEAT_CHANGE:
 	case NETDEV_BONDING_FAILOVER:
+	case NETDEV_POST_TYPE_CHANGE:
 	case NETDEV_NOTIFY_PEERS:
+	case NETDEV_CHANGEUPPER:
 	case NETDEV_RESEND_IGMP:
 	case NETDEV_CHANGEINFODATA:
+	case NETDEV_CHANGE_TX_QUEUE_LEN:
 		rtmsg_ifinfo_event(RTM_NEWLINK, dev, 0, rtnl_get_event(event),
 				   GFP_KERNEL);
 		break;
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 16982de649b9..e140ba49b30a 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1124,9 +1124,13 @@ int skb_zerocopy_iter_stream(struct sock *sk, struct sk_buff *skb,
 
 	err = __zerocopy_sg_from_iter(sk, skb, &msg->msg_iter, len);
 	if (err == -EFAULT || (err == -EMSGSIZE && skb->len == orig_len)) {
+		struct sock *save_sk = skb->sk;
+
 		/* Streams do not free skb on error. Reset to prev state. */
 		msg->msg_iter = orig_iter;
+		skb->sk = sk;
 		___pskb_trim(skb, orig_len);
+		skb->sk = save_sk;
 		return err;
 	}
 
@@ -1896,7 +1900,7 @@ void *__pskb_pull_tail(struct sk_buff *skb, int delta)
 	}
 
 	/* If we need update frag list, we are in troubles.
-	 * Certainly, it possible to add an offset to skb data,
+	 * Certainly, it is possible to add an offset to skb data,
 	 * but taking into account that pulling is expected to
 	 * be very rare operation, it is worth to fight against
 	 * further bloating skb head and crucify ourselves here instead.
@@ -4860,6 +4864,7 @@ void skb_scrub_packet(struct sk_buff *skb, bool xnet)
 	if (!xnet)
 		return;
 
+	ipvs_reset(skb);
 	skb_orphan(skb);
 	skb->mark = 0;
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index 9b7b6bbb2a23..415f441c63b9 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1654,6 +1654,8 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 
 		sock_copy(newsk, sk);
 
+		newsk->sk_prot_creator = sk->sk_prot;
+
 		/* SANITY */
 		if (likely(newsk->sk_net_refcnt))
 			get_net(sock_net(newsk));
@@ -1675,20 +1677,28 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 		newsk->sk_dst_pending_confirm = 0;
 		newsk->sk_wmem_queued	= 0;
 		newsk->sk_forward_alloc = 0;
+
+		/* sk->sk_memcg will be populated at accept() time */
+		newsk->sk_memcg = NULL;
+
 		atomic_set(&newsk->sk_drops, 0);
 		newsk->sk_send_head	= NULL;
 		newsk->sk_userlocks	= sk->sk_userlocks & ~SOCK_BINDPORT_LOCK;
 		atomic_set(&newsk->sk_zckey, 0);
 
 		sock_reset_flag(newsk, SOCK_DONE);
+		cgroup_sk_alloc(&newsk->sk_cgrp_data);
 
-		filter = rcu_dereference_protected(newsk->sk_filter, 1);
+		rcu_read_lock();
+		filter = rcu_dereference(sk->sk_filter);
 		if (filter != NULL)
 			/* though it's an empty new sock, the charging may fail
 			 * if sysctl_optmem_max was changed between creation of
 			 * original socket and cloning
 			 */
 			is_charged = sk_filter_charge(newsk, filter);
+		RCU_INIT_POINTER(newsk->sk_filter, filter);
+		rcu_read_unlock();
 
 		if (unlikely(!is_charged || xfrm_sk_clone_policy(newsk, sk))) {
 			/* We need to make sure that we don't uncharge the new
@@ -1709,9 +1719,6 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 		newsk->sk_incoming_cpu = raw_smp_processor_id();
 		atomic64_set(&newsk->sk_cookie, 0);
 
-		mem_cgroup_sk_alloc(newsk);
-		cgroup_sk_alloc(&newsk->sk_cgrp_data);
-
 		/*
 		 * Before updating sk_refcnt, we must commit prior changes to memory
 		 * (Documentation/RCU/rculist_nulls.txt for details)
diff --git a/net/core/sock_reuseport.c b/net/core/sock_reuseport.c
index eed1ebf7f29d..5eeb1d20cc38 100644
--- a/net/core/sock_reuseport.c
+++ b/net/core/sock_reuseport.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * To speed up listener socket lookup, create an array to store all sockets
  * listening on the same port.  This allows a decision to be made after finding
@@ -36,9 +37,14 @@ int reuseport_alloc(struct sock *sk)
 	 * soft irq of receive path or setsockopt from process context
 	 */
 	spin_lock_bh(&reuseport_lock);
-	WARN_ONCE(rcu_dereference_protected(sk->sk_reuseport_cb,
-					    lockdep_is_held(&reuseport_lock)),
-		  "multiple allocations for the same socket");
+
+	/* Allocation attempts can occur concurrently via the setsockopt path
+	 * and the bind/hash path.  Nothing to do when we lose the race.
+	 */
+	if (rcu_dereference_protected(sk->sk_reuseport_cb,
+				      lockdep_is_held(&reuseport_lock)))
+		goto out;
+
 	reuse = __reuseport_alloc(INIT_SOCKS);
 	if (!reuse) {
 		spin_unlock_bh(&reuseport_lock);
@@ -49,6 +55,7 @@ int reuseport_alloc(struct sock *sk)
 	reuse->num_socks = 1;
 	rcu_assign_pointer(sk->sk_reuseport_cb, reuse);
 
+out:
 	spin_unlock_bh(&reuseport_lock);
 
 	return 0;
diff --git a/net/core/stream.c b/net/core/stream.c
index 20231dbb1da0..1cff9c6270c6 100644
--- a/net/core/stream.c
+++ b/net/core/stream.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *     SUCS NET3:
  *
diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index b7cd9aafe99e..cbc3dde4cfcc 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* -*- linux-c -*-
  * sysctl_net_core.c: sysctl interface to net core subsystem.
  *
diff --git a/net/core/tso.c b/net/core/tso.c
index 5dca7ce8ee9f..43f4eba61933 100644
--- a/net/core/tso.c
+++ b/net/core/tso.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/if_vlan.h>
 #include <net/ip.h>
diff --git a/net/dccp/Makefile b/net/dccp/Makefile
index 5c8362b037ed..2e7b56097bc4 100644
--- a/net/dccp/Makefile
+++ b/net/dccp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IP_DCCP) += dccp.o dccp_ipv4.o
 
 dccp-y := ccid.o feat.o input.o minisocks.o options.o output.o proto.o timer.o \
diff --git a/net/dccp/ccids/lib/tfrc.c b/net/dccp/ccids/lib/tfrc.c
index 62b5828acde0..d7f265e1f50c 100644
--- a/net/dccp/ccids/lib/tfrc.c
+++ b/net/dccp/ccids/lib/tfrc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * TFRC library initialisation
  *
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 001c08696334..e65fcb45c3f6 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -414,8 +414,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
 	sk_daddr_set(newsk, ireq->ir_rmt_addr);
 	sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
 	newinet->inet_saddr	= ireq->ir_loc_addr;
-	newinet->inet_opt	= ireq->opt;
-	ireq->opt	   = NULL;
+	RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
 	newinet->mc_index  = inet_iif(skb);
 	newinet->mc_ttl	   = ip_hdr(skb)->ttl;
 	newinet->inet_id   = jiffies;
@@ -430,7 +429,10 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
 	if (__inet_inherit_port(sk, newsk) < 0)
 		goto put_and_exit;
 	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
-
+	if (*own_req)
+		ireq->ireq_opt = NULL;
+	else
+		newinet->inet_opt = NULL;
 	return newsk;
 
 exit_overflow:
@@ -441,6 +443,7 @@ exit:
 	__NET_INC_STATS(sock_net(sk), LINUX_MIB_LISTENDROPS);
 	return NULL;
 put_and_exit:
+	newinet->inet_opt = NULL;
 	inet_csk_prepare_forced_close(newsk);
 	dccp_done(newsk);
 	goto exit;
@@ -492,7 +495,7 @@ static int dccp_v4_send_response(const struct sock *sk, struct request_sock *req
 							      ireq->ir_rmt_addr);
 		err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
 					    ireq->ir_rmt_addr,
-					    ireq->opt);
+					    ireq_opt_deref(ireq));
 		err = net_xmit_eval(err);
 	}
 
@@ -548,7 +551,7 @@ out:
 static void dccp_v4_reqsk_destructor(struct request_sock *req)
 {
 	dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
-	kfree(inet_rsk(req)->opt);
+	kfree(rcu_dereference_protected(inet_rsk(req)->ireq_opt, 1));
 }
 
 void dccp_syn_ack_timeout(const struct request_sock *req)
diff --git a/net/decnet/Makefile b/net/decnet/Makefile
index e44003af71f6..9e38122d942b 100644
--- a/net/decnet/Makefile
+++ b/net/decnet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_DECNET) += decnet.o
 
diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index 4d339de56862..df042b6d80b8 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
  *              operating system.  DECnet is implemented using the  BSD Socket
diff --git a/net/decnet/dn_fib.c b/net/decnet/dn_fib.c
index 3d37464c8b4a..b37a1b833c77 100644
--- a/net/decnet/dn_fib.c
+++ b/net/decnet/dn_fib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
  *              operating system.  DECnet is implemented using the  BSD Socket
diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c
index 22bf0b95d6ed..528119a5618e 100644
--- a/net/decnet/dn_neigh.c
+++ b/net/decnet/dn_neigh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
  *              operating system.  DECnet is implemented using the  BSD Socket
diff --git a/net/decnet/dn_route.c b/net/decnet/dn_route.c
index 0bd3afd01dd2..6538632fbd03 100644
--- a/net/decnet/dn_route.c
+++ b/net/decnet/dn_route.c
@@ -131,7 +131,7 @@ static struct dn_rt_hash_bucket *dn_rt_hash_table;
 static unsigned int dn_rt_hash_mask;
 
 static struct timer_list dn_route_timer;
-static DEFINE_TIMER(dn_rt_flush_timer, dn_run_flush, 0, 0);
+static DEFINE_TIMER(dn_rt_flush_timer, dn_run_flush);
 int decnet_dst_gc_interval = 2;
 
 static struct dst_ops dn_dst_ops = {
diff --git a/net/decnet/dn_rules.c b/net/decnet/dn_rules.c
index 295bbd6a56f2..c795c3f509c9 100644
--- a/net/decnet/dn_rules.c
+++ b/net/decnet/dn_rules.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
diff --git a/net/decnet/dn_table.c b/net/decnet/dn_table.c
index 232675480756..08667f68e601 100644
--- a/net/decnet/dn_table.c
+++ b/net/decnet/dn_table.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
  *              operating system.  DECnet is implemented using the  BSD Socket
diff --git a/net/decnet/dn_timer.c b/net/decnet/dn_timer.c
index 1d330fd43dc7..f430daed24a0 100644
--- a/net/decnet/dn_timer.c
+++ b/net/decnet/dn_timer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
  *              operating system.  DECnet is implemented using the  BSD Socket
diff --git a/net/decnet/sysctl_net_decnet.c b/net/decnet/sysctl_net_decnet.c
index 6c7da6c29bf0..55bf64a22b59 100644
--- a/net/decnet/sysctl_net_decnet.c
+++ b/net/decnet/sysctl_net_decnet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * DECnet       An implementation of the DECnet protocol suite for the LINUX
  *              operating system.  DECnet is implemented using the  BSD Socket
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index 8737412c7b27..e1d4d898a007 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -224,7 +224,7 @@ static int dns_resolver_match_preparse(struct key_match_data *match_data)
 static void dns_resolver_describe(const struct key *key, struct seq_file *m)
 {
 	seq_puts(m, key->description);
-	if (key_is_instantiated(key)) {
+	if (key_is_positive(key)) {
 		int err = PTR_ERR(key->payload.data[dns_key_error]);
 
 		if (err)
diff --git a/net/dsa/Makefile b/net/dsa/Makefile
index fcce25da937c..3d3c74193d06 100644
--- a/net/dsa/Makefile
+++ b/net/dsa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # the core
 obj-$(CONFIG_NET_DSA) += dsa_core.o
 dsa_core-y += dsa.o dsa2.o legacy.o port.o slave.o switch.o
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index 873af0108e24..045d8a176279 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -496,14 +496,15 @@ static int dsa_cpu_parse(struct dsa_port *port, u32 index,
 		if (!ethernet)
 			return -EINVAL;
 		ethernet_dev = of_find_net_device_by_node(ethernet);
+		if (!ethernet_dev)
+			return -EPROBE_DEFER;
 	} else {
 		ethernet_dev = dsa_dev_to_net_device(ds->cd->netdev[index]);
+		if (!ethernet_dev)
+			return -EPROBE_DEFER;
 		dev_put(ethernet_dev);
 	}
 
-	if (!ethernet_dev)
-		return -EPROBE_DEFER;
-
 	if (!dst->cpu_dp) {
 		dst->cpu_dp = port;
 		dst->cpu_dp->netdev = ethernet_dev;
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 2afa99506f8b..865e29e62bad 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -1301,28 +1301,33 @@ int dsa_slave_create(struct dsa_port *port, const char *name)
 	p->old_duplex = -1;
 
 	port->netdev = slave_dev;
-	ret = register_netdev(slave_dev);
-	if (ret) {
-		netdev_err(master, "error %d registering interface %s\n",
-			   ret, slave_dev->name);
-		port->netdev = NULL;
-		free_percpu(p->stats64);
-		free_netdev(slave_dev);
-		return ret;
-	}
 
 	netif_carrier_off(slave_dev);
 
 	ret = dsa_slave_phy_setup(p, slave_dev);
 	if (ret) {
 		netdev_err(master, "error %d setting up slave phy\n", ret);
-		unregister_netdev(slave_dev);
-		free_percpu(p->stats64);
-		free_netdev(slave_dev);
-		return ret;
+		goto out_free;
+	}
+
+	ret = register_netdev(slave_dev);
+	if (ret) {
+		netdev_err(master, "error %d registering interface %s\n",
+			   ret, slave_dev->name);
+		goto out_phy;
 	}
 
 	return 0;
+
+out_phy:
+	phy_disconnect(p->phy);
+	if (of_phy_is_fixed_link(p->dp->dn))
+		of_phy_deregister_fixed_link(p->dp->dn);
+out_free:
+	free_percpu(p->stats64);
+	free_netdev(slave_dev);
+	port->netdev = NULL;
+	return ret;
 }
 
 void dsa_slave_destroy(struct net_device *slave_dev)
diff --git a/net/dsa/switch.c b/net/dsa/switch.c
index e6c06aa349a6..1e2929f4290a 100644
--- a/net/dsa/switch.c
+++ b/net/dsa/switch.c
@@ -133,6 +133,8 @@ static int dsa_switch_mdb_add(struct dsa_switch *ds,
 			if (err)
 				return err;
 		}
+
+		return 0;
 	}
 
 	for_each_set_bit(port, group, ds->num_ports)
@@ -180,6 +182,8 @@ static int dsa_switch_vlan_add(struct dsa_switch *ds,
 			if (err)
 				return err;
 		}
+
+		return 0;
 	}
 
 	for_each_set_bit(port, members, ds->num_ports)
diff --git a/net/ieee802154/6lowpan/6lowpan_i.h b/net/ieee802154/6lowpan/6lowpan_i.h
index ac7c96b73ad5..d8de3bcfb103 100644
--- a/net/ieee802154/6lowpan/6lowpan_i.h
+++ b/net/ieee802154/6lowpan/6lowpan_i.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IEEE802154_6LOWPAN_I_H__
 #define __IEEE802154_6LOWPAN_I_H__
 
diff --git a/net/ieee802154/Makefile b/net/ieee802154/Makefile
index 9b92ade687a3..f05b7bdae2aa 100644
--- a/net/ieee802154/Makefile
+++ b/net/ieee802154/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_IEEE802154) += ieee802154.o
 obj-$(CONFIG_IEEE802154_SOCKET) += ieee802154_socket.o
 obj-y += 6lowpan/
diff --git a/net/ieee802154/core.h b/net/ieee802154/core.h
index 81141f58d079..1c19f575d574 100644
--- a/net/ieee802154/core.h
+++ b/net/ieee802154/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IEEE802154_CORE_H
 #define __IEEE802154_CORE_H
 
diff --git a/net/ieee802154/nl802154.h b/net/ieee802154/nl802154.h
index 3846a89d0958..8c4b6d08954c 100644
--- a/net/ieee802154/nl802154.h
+++ b/net/ieee802154/nl802154.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IEEE802154_NL802154_H
 #define __IEEE802154_NL802154_H
 
diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h
index 4441c63b3ea6..598f5af49775 100644
--- a/net/ieee802154/rdev-ops.h
+++ b/net/ieee802154/rdev-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CFG802154_RDEV_OPS
 #define __CFG802154_RDEV_OPS
 
diff --git a/net/ieee802154/sysfs.h b/net/ieee802154/sysfs.h
index aa42e39ecbec..337545b639e9 100644
--- a/net/ieee802154/sysfs.h
+++ b/net/ieee802154/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IEEE802154_SYSFS_H
 #define __IEEE802154_SYSFS_H
 
diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h
index 9a471e41ec73..19c2e5d60e76 100644
--- a/net/ieee802154/trace.h
+++ b/net/ieee802154/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Based on net/wireless/trace.h */
 
 #undef TRACE_SYSTEM
diff --git a/net/ife/ife.c b/net/ife/ife.c
index f360341c72eb..7d1ec76e7f43 100644
--- a/net/ife/ife.c
+++ b/net/ife/ife.c
@@ -137,6 +137,6 @@ int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen, const void *dval)
 EXPORT_SYMBOL_GPL(ife_tlv_meta_encode);
 
 MODULE_AUTHOR("Jamal Hadi Salim <jhs@mojatatu.com>");
-MODULE_AUTHOR("Yotam Gigi <yotamg@mellanox.com>");
+MODULE_AUTHOR("Yotam Gigi <yotam.gi@gmail.com>");
 MODULE_DESCRIPTION("Inter-FE LFB action");
 MODULE_LICENSE("GPL");
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 91a2557942fa..f48fe6fc7e8c 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -70,11 +70,9 @@ config IP_MULTIPLE_TABLES
 	  address into account. Furthermore, the TOS (Type-Of-Service) field
 	  of the packet can be used for routing decisions as well.
 
-	  If you are interested in this, please see the preliminary
-	  documentation at <http://www.compendium.com.ar/policy-routing.txt>
-	  and <ftp://post.tepkom.ru/pub/vol2/Linux/docs/advanced-routing.tex>.
-	  You will need supporting software from
-	  <ftp://ftp.tux.org/pub/net/ip-routing/>.
+	  If you need more information, see the Linux Advanced
+	  Routing and Traffic Control documentation at
+	  <http://lartc.org/howto/lartc.rpdb.html>
 
 	  If unsure, say N.
 
diff --git a/net/ipv4/Makefile b/net/ipv4/Makefile
index afcb435adfbe..c6c8ad1d4b6d 100644
--- a/net/ipv4/Makefile
+++ b/net/ipv4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux TCP/IP (INET) layer.
 #
diff --git a/net/ipv4/ah4.c b/net/ipv4/ah4.c
index 37db44f60718..4dd95cdd8070 100644
--- a/net/ipv4/ah4.c
+++ b/net/ipv4/ah4.c
@@ -240,7 +240,7 @@ static int ah_output(struct xfrm_state *x, struct sk_buff *skb)
 		if (err == -EINPROGRESS)
 			goto out;
 
-		if (err == -EBUSY)
+		if (err == -ENOSPC)
 			err = NET_XMIT_DROP;
 		goto out_free;
 	}
diff --git a/net/ipv4/cipso_ipv4.c b/net/ipv4/cipso_ipv4.c
index 2ae8f54cb321..82178cc69c96 100644
--- a/net/ipv4/cipso_ipv4.c
+++ b/net/ipv4/cipso_ipv4.c
@@ -1951,7 +1951,7 @@ int cipso_v4_req_setattr(struct request_sock *req,
 	buf = NULL;
 
 	req_inet = inet_rsk(req);
-	opt = xchg(&req_inet->opt, opt);
+	opt = xchg((__force struct ip_options_rcu **)&req_inet->ireq_opt, opt);
 	if (opt)
 		kfree_rcu(opt, rcu);
 
@@ -1973,11 +1973,13 @@ req_setattr_failure:
  * values on failure.
  *
  */
-static int cipso_v4_delopt(struct ip_options_rcu **opt_ptr)
+static int cipso_v4_delopt(struct ip_options_rcu __rcu **opt_ptr)
 {
+	struct ip_options_rcu *opt = rcu_dereference_protected(*opt_ptr, 1);
 	int hdr_delta = 0;
-	struct ip_options_rcu *opt = *opt_ptr;
 
+	if (!opt || opt->opt.cipso == 0)
+		return 0;
 	if (opt->opt.srr || opt->opt.rr || opt->opt.ts || opt->opt.router_alert) {
 		u8 cipso_len;
 		u8 cipso_off;
@@ -2039,14 +2041,10 @@ static int cipso_v4_delopt(struct ip_options_rcu **opt_ptr)
  */
 void cipso_v4_sock_delattr(struct sock *sk)
 {
-	int hdr_delta;
-	struct ip_options_rcu *opt;
 	struct inet_sock *sk_inet;
+	int hdr_delta;
 
 	sk_inet = inet_sk(sk);
-	opt = rcu_dereference_protected(sk_inet->inet_opt, 1);
-	if (!opt || opt->opt.cipso == 0)
-		return;
 
 	hdr_delta = cipso_v4_delopt(&sk_inet->inet_opt);
 	if (sk_inet->is_icsk && hdr_delta > 0) {
@@ -2066,15 +2064,7 @@ void cipso_v4_sock_delattr(struct sock *sk)
  */
 void cipso_v4_req_delattr(struct request_sock *req)
 {
-	struct ip_options_rcu *opt;
-	struct inet_request_sock *req_inet;
-
-	req_inet = inet_rsk(req);
-	opt = req_inet->opt;
-	if (!opt || opt->opt.cipso == 0)
-		return;
-
-	cipso_v4_delopt(&req_inet->opt);
+	cipso_v4_delopt(&inet_rsk(req)->ireq_opt);
 }
 
 /**
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index b00e4a43b4dc..d57aa64fa7c7 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -432,7 +432,7 @@ int esp_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *
 	case -EINPROGRESS:
 		goto error;
 
-	case -EBUSY:
+	case -ENOSPC:
 		err = NET_XMIT_DROP;
 		break;
 
diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 5b2af19cfb5b..e6ff282bb7f4 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _FIB_LOOKUP_H
 #define _FIB_LOOKUP_H
 
diff --git a/net/ipv4/fib_notifier.c b/net/ipv4/fib_notifier.c
index cfd420b0572c..b804ccbdb241 100644
--- a/net/ipv4/fib_notifier.c
+++ b/net/ipv4/fib_notifier.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/rtnetlink.h>
 #include <linux/notifier.h>
 #include <linux/socket.h>
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 57a5d48acee8..01ed22139ac2 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1365,8 +1365,6 @@ int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
 	    nla_put_in_addr(skb, RTA_PREFSRC, fi->fib_prefsrc))
 		goto nla_put_failure;
 	if (fi->fib_nhs == 1) {
-		struct in_device *in_dev;
-
 		if (fi->fib_nh->nh_gw &&
 		    nla_put_in_addr(skb, RTA_GATEWAY, fi->fib_nh->nh_gw))
 			goto nla_put_failure;
@@ -1374,10 +1372,14 @@ int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
 		    nla_put_u32(skb, RTA_OIF, fi->fib_nh->nh_oif))
 			goto nla_put_failure;
 		if (fi->fib_nh->nh_flags & RTNH_F_LINKDOWN) {
-			in_dev = __in_dev_get_rtnl(fi->fib_nh->nh_dev);
+			struct in_device *in_dev;
+
+			rcu_read_lock();
+			in_dev = __in_dev_get_rcu(fi->fib_nh->nh_dev);
 			if (in_dev &&
 			    IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev))
 				rtm->rtm_flags |= RTNH_F_DEAD;
+			rcu_read_unlock();
 		}
 		if (fi->fib_nh->nh_flags & RTNH_F_OFFLOAD)
 			rtm->rtm_flags |= RTNH_F_OFFLOAD;
@@ -1400,18 +1402,20 @@ int fib_dump_info(struct sk_buff *skb, u32 portid, u32 seq, int event,
 			goto nla_put_failure;
 
 		for_nexthops(fi) {
-			struct in_device *in_dev;
-
 			rtnh = nla_reserve_nohdr(skb, sizeof(*rtnh));
 			if (!rtnh)
 				goto nla_put_failure;
 
 			rtnh->rtnh_flags = nh->nh_flags & 0xFF;
 			if (nh->nh_flags & RTNH_F_LINKDOWN) {
-				in_dev = __in_dev_get_rtnl(nh->nh_dev);
+				struct in_device *in_dev;
+
+				rcu_read_lock();
+				in_dev = __in_dev_get_rcu(nh->nh_dev);
 				if (in_dev &&
 				    IN_DEV_IGNORE_ROUTES_WITH_LINKDOWN(in_dev))
 					rtnh->rtnh_flags |= RTNH_F_DEAD;
+				rcu_read_unlock();
 			}
 			rtnh->rtnh_hops = nh->nh_weight - 1;
 			rtnh->rtnh_ifindex = nh->nh_oif;
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 416bb304a281..1859c473b21a 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -86,7 +86,7 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
 		greh = (struct gre_base_hdr *)skb_transport_header(skb);
 		pcsum = (__sum16 *)(greh + 1);
 
-		if (gso_partial) {
+		if (gso_partial && skb_is_gso(skb)) {
 			unsigned int partial_adj;
 
 			/* Adjust checksum to account for the fact that
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 4089c013cb03..b47a59cb3573 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -266,7 +266,7 @@ static inline int sk_reuseport_match(struct inet_bind_bucket *tb,
 #if IS_ENABLED(CONFIG_IPV6)
 	if (tb->fast_sk_family == AF_INET6)
 		return ipv6_rcv_saddr_equal(&tb->fast_v6_rcv_saddr,
-					    &sk->sk_v6_rcv_saddr,
+					    inet6_rcv_saddr(sk),
 					    tb->fast_rcv_saddr,
 					    sk->sk_rcv_saddr,
 					    tb->fast_ipv6_only,
@@ -321,13 +321,14 @@ tb_found:
 			goto fail_unlock;
 	}
 success:
-	if (!hlist_empty(&tb->owners)) {
+	if (hlist_empty(&tb->owners)) {
 		tb->fastreuse = reuse;
 		if (sk->sk_reuseport) {
 			tb->fastreuseport = FASTREUSEPORT_ANY;
 			tb->fastuid = uid;
 			tb->fast_rcv_saddr = sk->sk_rcv_saddr;
 			tb->fast_ipv6_only = ipv6_only_sock(sk);
+			tb->fast_sk_family = sk->sk_family;
 #if IS_ENABLED(CONFIG_IPV6)
 			tb->fast_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
 #endif
@@ -354,6 +355,7 @@ success:
 				tb->fastuid = uid;
 				tb->fast_rcv_saddr = sk->sk_rcv_saddr;
 				tb->fast_ipv6_only = ipv6_only_sock(sk);
+				tb->fast_sk_family = sk->sk_family;
 #if IS_ENABLED(CONFIG_IPV6)
 				tb->fast_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
 #endif
@@ -473,6 +475,7 @@ struct sock *inet_csk_accept(struct sock *sk, int flags, int *err, bool kern)
 		}
 		spin_unlock_bh(&queue->fastopenq.lock);
 	}
+	mem_cgroup_sk_alloc(newsk);
 out:
 	release_sock(sk);
 	if (req)
@@ -537,9 +540,11 @@ struct dst_entry *inet_csk_route_req(const struct sock *sk,
 {
 	const struct inet_request_sock *ireq = inet_rsk(req);
 	struct net *net = read_pnet(&ireq->ireq_net);
-	struct ip_options_rcu *opt = ireq->opt;
+	struct ip_options_rcu *opt;
 	struct rtable *rt;
 
+	opt = ireq_opt_deref(ireq);
+
 	flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
 			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
 			   sk->sk_protocol, inet_sk_flowi_flags(sk),
@@ -573,10 +578,9 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
 	struct flowi4 *fl4;
 	struct rtable *rt;
 
+	opt = rcu_dereference(ireq->ireq_opt);
 	fl4 = &newinet->cork.fl.u.ip4;
 
-	rcu_read_lock();
-	opt = rcu_dereference(newinet->inet_opt);
 	flowi4_init_output(fl4, ireq->ir_iif, ireq->ir_mark,
 			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
 			   sk->sk_protocol, inet_sk_flowi_flags(sk),
@@ -589,13 +593,11 @@ struct dst_entry *inet_csk_route_child_sock(const struct sock *sk,
 		goto no_route;
 	if (opt && opt->opt.is_strictroute && rt->rt_uses_gateway)
 		goto route_err;
-	rcu_read_unlock();
 	return &rt->dst;
 
 route_err:
 	ip_rt_put(rt);
 no_route:
-	rcu_read_unlock();
 	__IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES);
 	return NULL;
 }
@@ -916,7 +918,6 @@ static void inet_child_forget(struct sock *sk, struct request_sock *req,
 		tcp_sk(child)->fastopen_rsk = NULL;
 	}
 	inet_csk_destroy_sock(child);
-	reqsk_put(req);
 }
 
 struct sock *inet_csk_reqsk_queue_add(struct sock *sk,
@@ -987,6 +988,7 @@ void inet_csk_listen_stop(struct sock *sk)
 		sock_hold(child);
 
 		inet_child_forget(sk, req, child);
+		reqsk_put(req);
 		bh_unlock_sock(child);
 		local_bh_enable();
 		sock_put(child);
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index af74d0433453..f9597ba26599 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -164,7 +164,7 @@ static void inet_frag_worker(struct work_struct *work)
 
 	local_bh_disable();
 
-	for (i = ACCESS_ONCE(f->next_bucket); budget; --budget) {
+	for (i = READ_ONCE(f->next_bucket); budget; --budget) {
 		evicted += inet_evict_bucket(f, &f->hash[i]);
 		i = (i + 1) & (INETFRAGS_HASHSZ - 1);
 		if (evicted > INETFRAGS_EVICT_MAX)
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 597bb4cfe805..e7d15fb0d94d 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -456,10 +456,7 @@ static int inet_reuseport_add_sock(struct sock *sk,
 			return reuseport_add_sock(sk, sk2);
 	}
 
-	/* Initial allocation may have already happened via setsockopt */
-	if (!rcu_access_pointer(sk->sk_reuseport_cb))
-		return reuseport_alloc(sk);
-	return 0;
+	return reuseport_alloc(sk);
 }
 
 int __inet_hash(struct sock *sk, struct sock *osk)
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index e7eb590c86ce..b20c8ac64081 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -128,9 +128,9 @@ static struct inet_peer *lookup(const struct inetpeer_addr *daddr,
 			break;
 		}
 		if (cmp == -1)
-			pp = &(*pp)->rb_left;
+			pp = &next->rb_left;
 		else
-			pp = &(*pp)->rb_right;
+			pp = &next->rb_right;
 	}
 	*parent_p = parent;
 	*pp_p = pp;
diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 9f0a7b96646f..2dd21c3281a1 100644
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index 46408c220d9d..df8fe0503de0 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 0162fb955b33..467e44d7587d 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -259,7 +259,6 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 	struct ip_tunnel *tunnel;
 	struct erspanhdr *ershdr;
 	const struct iphdr *iph;
-	__be32 session_id;
 	__be32 index;
 	int len;
 
@@ -275,8 +274,7 @@ static int erspan_rcv(struct sk_buff *skb, struct tnl_ptk_info *tpi,
 	/* The original GRE header does not have key field,
 	 * Use ERSPAN 10-bit session ID as key.
 	 */
-	session_id = cpu_to_be32(ntohs(ershdr->session_id));
-	tpi->key = session_id;
+	tpi->key = cpu_to_be32(ntohs(ershdr->session_id) & ID_MASK);
 	index = ershdr->md.index;
 	tunnel = ip_tunnel_lookup(itn, skb->dev->ifindex,
 				  tpi->flags | TUNNEL_KEY,
@@ -733,7 +731,7 @@ static netdev_tx_t erspan_xmit(struct sk_buff *skb,
 	if (skb_cow_head(skb, dev->needed_headroom))
 		goto free_skb;
 
-	if (skb->len > dev->mtu) {
+	if (skb->len - dev->hard_header_len > dev->mtu) {
 		pskb_trim(skb, dev->mtu);
 		truncate = true;
 	}
@@ -1223,6 +1221,7 @@ static int gre_tap_init(struct net_device *dev)
 {
 	__gre_tunnel_init(dev);
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+	netif_keep_dst(dev);
 
 	return ip_tunnel_init(dev);
 }
@@ -1246,13 +1245,16 @@ static int erspan_tunnel_init(struct net_device *dev)
 
 	tunnel->tun_hlen = 8;
 	tunnel->parms.iph.protocol = IPPROTO_GRE;
-	t_hlen = tunnel->hlen + sizeof(struct iphdr) + sizeof(struct erspanhdr);
+	tunnel->hlen = tunnel->tun_hlen + tunnel->encap_hlen +
+		       sizeof(struct erspanhdr);
+	t_hlen = tunnel->hlen + sizeof(struct iphdr);
 
 	dev->needed_headroom = LL_MAX_HEADER + t_hlen + 4;
 	dev->mtu = ETH_DATA_LEN - t_hlen - 4;
 	dev->features		|= GRE_FEATURES;
 	dev->hw_features	|= GRE_FEATURES;
 	dev->priv_flags		|= IFF_LIVE_ADDR_CHANGE;
+	netif_keep_dst(dev);
 
 	return ip_tunnel_init(dev);
 }
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index fa2dc8f692c6..57fc13c6ab2b 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -311,9 +311,10 @@ drop:
 static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
 	const struct iphdr *iph = ip_hdr(skb);
-	struct rtable *rt;
+	int (*edemux)(struct sk_buff *skb);
 	struct net_device *dev = skb->dev;
-	void (*edemux)(struct sk_buff *skb);
+	struct rtable *rt;
+	int err;
 
 	/* if ingress device is enslaved to an L3 master device pass the
 	 * skb to its handler for processing
@@ -331,7 +332,9 @@ static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 
 		ipprot = rcu_dereference(inet_protos[protocol]);
 		if (ipprot && (edemux = READ_ONCE(ipprot->early_demux))) {
-			edemux(skb);
+			err = edemux(skb);
+			if (unlikely(err))
+				goto drop_error;
 			/* must reload iph, skb->head might have changed */
 			iph = ip_hdr(skb);
 		}
@@ -342,13 +345,10 @@ static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 	 *	how the packet travels inside Linux networking.
 	 */
 	if (!skb_valid_dst(skb)) {
-		int err = ip_route_input_noref(skb, iph->daddr, iph->saddr,
-					       iph->tos, dev);
-		if (unlikely(err)) {
-			if (err == -EXDEV)
-				__NET_INC_STATS(net, LINUX_MIB_IPRPFILTER);
-			goto drop;
-		}
+		err = ip_route_input_noref(skb, iph->daddr, iph->saddr,
+					   iph->tos, dev);
+		if (unlikely(err))
+			goto drop_error;
 	}
 
 #ifdef CONFIG_IP_ROUTE_CLASSID
@@ -399,6 +399,11 @@ static int ip_rcv_finish(struct net *net, struct sock *sk, struct sk_buff *skb)
 drop:
 	kfree_skb(skb);
 	return NET_RX_DROP;
+
+drop_error:
+	if (err == -EXDEV)
+		__NET_INC_STATS(net, LINUX_MIB_IPRPFILTER);
+	goto drop;
 }
 
 /*
diff --git a/net/ipv4/ip_options.c b/net/ipv4/ip_options.c
index 525ae88d1e58..ed194d46c00e 100644
--- a/net/ipv4/ip_options.c
+++ b/net/ipv4/ip_options.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index e558e4f9597b..60fb1eb7d7d8 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
@@ -1207,7 +1208,6 @@ e_inval:
 void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb)
 {
 	struct in_pktinfo *pktinfo = PKTINFO_SKB_CB(skb);
-	bool l3slave = ipv4_l3mdev_skb(IPCB(skb)->flags);
 	bool prepare = (inet_sk(sk)->cmsg_flags & IP_CMSG_PKTINFO) ||
 		       ipv6_sk_rxinfo(sk);
 
@@ -1221,8 +1221,13 @@ void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb)
 		 * (e.g., process binds socket to eth0 for Tx which is
 		 * redirected to loopback in the rtable/dst).
 		 */
-		if (pktinfo->ipi_ifindex == LOOPBACK_IFINDEX || l3slave)
+		struct rtable *rt = skb_rtable(skb);
+		bool l3slave = ipv4_l3mdev_skb(IPCB(skb)->flags);
+
+		if (pktinfo->ipi_ifindex == LOOPBACK_IFINDEX)
 			pktinfo->ipi_ifindex = inet_iif(skb);
+		else if (l3slave && rt && rt->rt_iif)
+			pktinfo->ipi_ifindex = rt->rt_iif;
 
 		pktinfo->ipi_spec_dst.s_addr = fib_compute_spec_dst(skb);
 	} else {
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index e1856bfa753d..e9805ad664ac 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -176,7 +176,7 @@ skip_key_lookup:
 		return cand;
 
 	t = rcu_dereference(itn->collect_md_tun);
-	if (t)
+	if (t && t->dev->flags & IFF_UP)
 		return t;
 
 	if (itn->fb_tunnel_dev && itn->fb_tunnel_dev->flags & IFF_UP)
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 5ed63d250950..89453cf62158 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -168,6 +168,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
 	struct ip_tunnel_parm *parms = &tunnel->parms;
 	struct dst_entry *dst = skb_dst(skb);
 	struct net_device *tdev;	/* Device to other host */
+	int pkt_len = skb->len;
 	int err;
 	int mtu;
 
@@ -229,7 +230,7 @@ static netdev_tx_t vti_xmit(struct sk_buff *skb, struct net_device *dev,
 
 	err = dst_output(tunnel->net, skb->sk, skb);
 	if (net_xmit_eval(err) == 0)
-		err = skb->len;
+		err = pkt_len;
 	iptunnel_xmit_stats(dev, err);
 	return NETDEV_TX_OK;
 
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index 4c5dfe6bd34d..abdebca848c9 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Automatic Configuration of IP -- use DHCP, BOOTP, RARP, or
  *  user-supplied information to configure own IP address and routes.
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index fb1ad22b5e29..cdd627355ed1 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -128,43 +128,68 @@ static struct rtnl_link_ops ipip_link_ops __read_mostly;
 
 static int ipip_err(struct sk_buff *skb, u32 info)
 {
-
-/* All the routers (except for Linux) return only
-   8 bytes of packet payload. It means, that precise relaying of
-   ICMP in the real Internet is absolutely infeasible.
- */
+	/* All the routers (except for Linux) return only
+	 * 8 bytes of packet payload. It means, that precise relaying of
+	 * ICMP in the real Internet is absolutely infeasible.
+	 */
 	struct net *net = dev_net(skb->dev);
 	struct ip_tunnel_net *itn = net_generic(net, ipip_net_id);
 	const struct iphdr *iph = (const struct iphdr *)skb->data;
-	struct ip_tunnel *t;
-	int err;
 	const int type = icmp_hdr(skb)->type;
 	const int code = icmp_hdr(skb)->code;
+	struct ip_tunnel *t;
+	int err = 0;
+
+	switch (type) {
+	case ICMP_DEST_UNREACH:
+		switch (code) {
+		case ICMP_SR_FAILED:
+			/* Impossible event. */
+			goto out;
+		default:
+			/* All others are translated to HOST_UNREACH.
+			 * rfc2003 contains "deep thoughts" about NET_UNREACH,
+			 * I believe they are just ether pollution. --ANK
+			 */
+			break;
+		}
+		break;
+
+	case ICMP_TIME_EXCEEDED:
+		if (code != ICMP_EXC_TTL)
+			goto out;
+		break;
+
+	case ICMP_REDIRECT:
+		break;
+
+	default:
+		goto out;
+	}
 
-	err = -ENOENT;
 	t = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
 			     iph->daddr, iph->saddr, 0);
-	if (!t)
+	if (!t) {
+		err = -ENOENT;
 		goto out;
+	}
 
 	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
-				 t->parms.link, 0, iph->protocol, 0);
-		err = 0;
+		ipv4_update_pmtu(skb, net, info, t->parms.link, 0,
+				 iph->protocol, 0);
 		goto out;
 	}
 
 	if (type == ICMP_REDIRECT) {
-		ipv4_redirect(skb, dev_net(skb->dev), t->parms.link, 0,
-			      iph->protocol, 0);
-		err = 0;
+		ipv4_redirect(skb, net, t->parms.link, 0, iph->protocol, 0);
 		goto out;
 	}
 
-	if (t->parms.iph.daddr == 0)
+	if (t->parms.iph.daddr == 0) {
+		err = -ENOENT;
 		goto out;
+	}
 
-	err = 0;
 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
 		goto out;
 
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index f462fee66ac8..adcdae358365 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the netfilter modules on top of IPv4.
 #
diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c
index 811689e523c3..f75fc6b53115 100644
--- a/net/ipv4/netfilter/ipt_SYNPROXY.c
+++ b/net/ipv4/netfilter/ipt_SYNPROXY.c
@@ -330,7 +330,8 @@ static unsigned int ipv4_synproxy_hook(void *priv,
 	if (synproxy == NULL)
 		return NF_ACCEPT;
 
-	if (nf_is_loopback_packet(skb))
+	if (nf_is_loopback_packet(skb) ||
+	    ip_hdr(skb)->protocol != IPPROTO_TCP)
 		return NF_ACCEPT;
 
 	thoff = ip_hdrlen(skb);
diff --git a/net/ipv4/netfilter/nf_reject_ipv4.c b/net/ipv4/netfilter/nf_reject_ipv4.c
index eeacbdaf7cdf..5cd06ba3535d 100644
--- a/net/ipv4/netfilter/nf_reject_ipv4.c
+++ b/net/ipv4/netfilter/nf_reject_ipv4.c
@@ -132,6 +132,8 @@ void nf_send_reset(struct net *net, struct sk_buff *oldskb, int hook)
 	if (ip_route_me_harder(net, nskb, RTN_UNSPEC))
 		goto free_nskb;
 
+	niph = ip_hdr(nskb);
+
 	/* "Never happens" */
 	if (nskb->len > dst_mtu(skb_dst(nskb)))
 		goto free_nskb;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 94d4cd2d5ea4..c0864562083b 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -495,7 +495,7 @@ u32 ip_idents_reserve(u32 hash, int segs)
 {
 	u32 *p_tstamp = ip_tstamps + hash % IP_IDENTS_SZ;
 	atomic_t *p_id = ip_idents + hash % IP_IDENTS_SZ;
-	u32 old = ACCESS_ONCE(*p_tstamp);
+	u32 old = READ_ONCE(*p_tstamp);
 	u32 now = (u32)jiffies;
 	u32 new, delta = 0;
 
@@ -1520,43 +1520,56 @@ struct rtable *rt_dst_alloc(struct net_device *dev,
 EXPORT_SYMBOL(rt_dst_alloc);
 
 /* called in rcu_read_lock() section */
-static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
-				u8 tos, struct net_device *dev, int our)
+int ip_mc_validate_source(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+			  u8 tos, struct net_device *dev,
+			  struct in_device *in_dev, u32 *itag)
 {
-	struct rtable *rth;
-	struct in_device *in_dev = __in_dev_get_rcu(dev);
-	unsigned int flags = RTCF_MULTICAST;
-	u32 itag = 0;
 	int err;
 
 	/* Primary sanity checks. */
-
 	if (!in_dev)
 		return -EINVAL;
 
 	if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) ||
 	    skb->protocol != htons(ETH_P_IP))
-		goto e_inval;
+		return -EINVAL;
 
 	if (ipv4_is_loopback(saddr) && !IN_DEV_ROUTE_LOCALNET(in_dev))
-		goto e_inval;
+		return -EINVAL;
 
 	if (ipv4_is_zeronet(saddr)) {
 		if (!ipv4_is_local_multicast(daddr))
-			goto e_inval;
+			return -EINVAL;
 	} else {
 		err = fib_validate_source(skb, saddr, 0, tos, 0, dev,
-					  in_dev, &itag);
+					  in_dev, itag);
 		if (err < 0)
-			goto e_err;
+			return err;
 	}
+	return 0;
+}
+
+/* called in rcu_read_lock() section */
+static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+			     u8 tos, struct net_device *dev, int our)
+{
+	struct in_device *in_dev = __in_dev_get_rcu(dev);
+	unsigned int flags = RTCF_MULTICAST;
+	struct rtable *rth;
+	u32 itag = 0;
+	int err;
+
+	err = ip_mc_validate_source(skb, daddr, saddr, tos, dev, in_dev, &itag);
+	if (err)
+		return err;
+
 	if (our)
 		flags |= RTCF_LOCAL;
 
 	rth = rt_dst_alloc(dev_net(dev)->loopback_dev, flags, RTN_MULTICAST,
 			   IN_DEV_CONF_GET(in_dev, NOPOLICY), false, false);
 	if (!rth)
-		goto e_nobufs;
+		return -ENOBUFS;
 
 #ifdef CONFIG_IP_ROUTE_CLASSID
 	rth->dst.tclassid = itag;
@@ -1572,13 +1585,6 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr,
 
 	skb_dst_set(skb, &rth->dst);
 	return 0;
-
-e_nobufs:
-	return -ENOBUFS;
-e_inval:
-	return -EINVAL;
-e_err:
-	return err;
 }
 
 
@@ -2507,7 +2513,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or
 	struct rtable *ort = (struct rtable *) dst_orig;
 	struct rtable *rt;
 
-	rt = dst_alloc(&ipv4_dst_blackhole_ops, NULL, 1, DST_OBSOLETE_NONE, 0);
+	rt = dst_alloc(&ipv4_dst_blackhole_ops, NULL, 1, DST_OBSOLETE_DEAD, 0);
 	if (rt) {
 		struct dst_entry *new = &rt->dst;
 
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index b1bb1b3a1082..77cf32a80952 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -355,7 +355,7 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb)
 	/* We throwed the options of the initial SYN away, so we hope
 	 * the ACK carries the same options again (see RFC1122 4.2.3.8)
 	 */
-	ireq->opt = tcp_v4_save_options(sock_net(sk), skb);
+	RCU_INIT_POINTER(ireq->ireq_opt, tcp_v4_save_options(sock_net(sk), skb));
 
 	if (security_inet_conn_request(sk, skb, req)) {
 		reqsk_free(req);
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 0d3c038d7b04..0989e739d098 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sysctl_net_ipv4.c: sysctl interface to net IPV4 subsystem.
  *
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index e3c33220c418..fbbeda647774 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/crypto.h>
 #include <linux/err.h>
 #include <linux/init.h>
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index c5d7656beeee..887585045b27 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * INET		An implementation of the TCP/IP protocol suite for the LINUX
  *		operating system.  INET is implemented using the  BSD Socket
@@ -114,7 +115,7 @@ int sysctl_tcp_invalid_ratelimit __read_mostly = HZ/2;
 
 #define FLAG_ACKED		(FLAG_DATA_ACKED|FLAG_SYN_ACKED)
 #define FLAG_NOT_DUP		(FLAG_DATA|FLAG_WIN_UPDATE|FLAG_ACKED)
-#define FLAG_CA_ALERT		(FLAG_DATA_SACKED|FLAG_ECE)
+#define FLAG_CA_ALERT		(FLAG_DATA_SACKED|FLAG_ECE|FLAG_DSACKING_ACK)
 #define FLAG_FORWARD_PROGRESS	(FLAG_ACKED|FLAG_DATA_SACKED)
 
 #define TCP_REMNANT (TCP_FLAG_FIN|TCP_FLAG_URG|TCP_FLAG_SYN|TCP_FLAG_PSH)
@@ -815,12 +816,12 @@ static void tcp_update_pacing_rate(struct sock *sk)
 	if (likely(tp->srtt_us))
 		do_div(rate, tp->srtt_us);
 
-	/* ACCESS_ONCE() is needed because sch_fq fetches sk_pacing_rate
+	/* WRITE_ONCE() is needed because sch_fq fetches sk_pacing_rate
 	 * without any lock. We want to make sure compiler wont store
 	 * intermediate values in this location.
 	 */
-	ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
-						sk->sk_max_pacing_rate);
+	WRITE_ONCE(sk->sk_pacing_rate, min_t(u64, rate,
+					     sk->sk_max_pacing_rate));
 }
 
 /* Calculate rto without backoff.  This is the second half of Van Jacobson's
@@ -2614,7 +2615,6 @@ void tcp_simple_retransmit(struct sock *sk)
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct sk_buff *skb;
 	unsigned int mss = tcp_current_mss(sk);
-	u32 prior_lost = tp->lost_out;
 
 	tcp_for_write_queue(skb, sk) {
 		if (skb == tcp_send_head(sk))
@@ -2631,7 +2631,7 @@ void tcp_simple_retransmit(struct sock *sk)
 
 	tcp_clear_retrans_hints_partial(tp);
 
-	if (prior_lost == tp->lost_out)
+	if (!tp->lost_out)
 		return;
 
 	if (tcp_is_reno(tp))
@@ -6196,7 +6196,7 @@ struct request_sock *inet_reqsk_alloc(const struct request_sock_ops *ops,
 		struct inet_request_sock *ireq = inet_rsk(req);
 
 		kmemcheck_annotate_bitfield(ireq, flags);
-		ireq->opt = NULL;
+		ireq->ireq_opt = NULL;
 #if IS_ENABLED(CONFIG_IPV6)
 		ireq->pktopts = NULL;
 #endif
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index d9416b5162bc..5b027c69cbc5 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -877,7 +877,7 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst,
 
 		err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
 					    ireq->ir_rmt_addr,
-					    ireq->opt);
+					    ireq_opt_deref(ireq));
 		err = net_xmit_eval(err);
 	}
 
@@ -889,7 +889,7 @@ static int tcp_v4_send_synack(const struct sock *sk, struct dst_entry *dst,
  */
 static void tcp_v4_reqsk_destructor(struct request_sock *req)
 {
-	kfree(inet_rsk(req)->opt);
+	kfree(rcu_dereference_protected(inet_rsk(req)->ireq_opt, 1));
 }
 
 #ifdef CONFIG_TCP_MD5SIG
@@ -1265,10 +1265,11 @@ static void tcp_v4_init_req(struct request_sock *req,
 			    struct sk_buff *skb)
 {
 	struct inet_request_sock *ireq = inet_rsk(req);
+	struct net *net = sock_net(sk_listener);
 
 	sk_rcv_saddr_set(req_to_sk(req), ip_hdr(skb)->daddr);
 	sk_daddr_set(req_to_sk(req), ip_hdr(skb)->saddr);
-	ireq->opt = tcp_v4_save_options(sock_net(sk_listener), skb);
+	RCU_INIT_POINTER(ireq->ireq_opt, tcp_v4_save_options(net, skb));
 }
 
 static struct dst_entry *tcp_v4_route_req(const struct sock *sk,
@@ -1355,10 +1356,9 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
 	sk_daddr_set(newsk, ireq->ir_rmt_addr);
 	sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
 	newsk->sk_bound_dev_if = ireq->ir_iif;
-	newinet->inet_saddr	      = ireq->ir_loc_addr;
-	inet_opt	      = ireq->opt;
-	rcu_assign_pointer(newinet->inet_opt, inet_opt);
-	ireq->opt	      = NULL;
+	newinet->inet_saddr   = ireq->ir_loc_addr;
+	inet_opt	      = rcu_dereference(ireq->ireq_opt);
+	RCU_INIT_POINTER(newinet->inet_opt, inet_opt);
 	newinet->mc_index     = inet_iif(skb);
 	newinet->mc_ttl	      = ip_hdr(skb)->ttl;
 	newinet->rcv_tos      = ip_hdr(skb)->tos;
@@ -1403,9 +1403,12 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
 	if (__inet_inherit_port(sk, newsk) < 0)
 		goto put_and_exit;
 	*own_req = inet_ehash_nolisten(newsk, req_to_sk(req_unhash));
-	if (*own_req)
+	if (likely(*own_req)) {
 		tcp_move_syn(newtp, req);
-
+		ireq->ireq_opt = NULL;
+	} else {
+		newinet->inet_opt = NULL;
+	}
 	return newsk;
 
 exit_overflow:
@@ -1416,6 +1419,7 @@ exit:
 	tcp_listendrop(sk);
 	return NULL;
 put_and_exit:
+	newinet->inet_opt = NULL;
 	inet_csk_prepare_forced_close(newsk);
 	tcp_done(newsk);
 	goto exit;
@@ -1503,23 +1507,23 @@ csum_err:
 }
 EXPORT_SYMBOL(tcp_v4_do_rcv);
 
-void tcp_v4_early_demux(struct sk_buff *skb)
+int tcp_v4_early_demux(struct sk_buff *skb)
 {
 	const struct iphdr *iph;
 	const struct tcphdr *th;
 	struct sock *sk;
 
 	if (skb->pkt_type != PACKET_HOST)
-		return;
+		return 0;
 
 	if (!pskb_may_pull(skb, skb_transport_offset(skb) + sizeof(struct tcphdr)))
-		return;
+		return 0;
 
 	iph = ip_hdr(skb);
 	th = tcp_hdr(skb);
 
 	if (th->doff < sizeof(struct tcphdr) / 4)
-		return;
+		return 0;
 
 	sk = __inet_lookup_established(dev_net(skb->dev), &tcp_hashinfo,
 				       iph->saddr, th->source,
@@ -1538,6 +1542,7 @@ void tcp_v4_early_demux(struct sk_buff *skb)
 				skb_dst_set_noref(skb, dst);
 		}
 	}
+	return 0;
 }
 
 bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb)
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 102b2c90bb80..0f0d740f6c8b 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/rcupdate.h>
 #include <linux/spinlock.h>
 #include <linux/jiffies.h>
diff --git a/net/ipv4/tcp_nv.c b/net/ipv4/tcp_nv.c
index 1ff73982e28c..125fc1450b01 100644
--- a/net/ipv4/tcp_nv.c
+++ b/net/ipv4/tcp_nv.c
@@ -252,7 +252,7 @@ static void tcpnv_acked(struct sock *sk, const struct ack_sample *sample)
 
 	/* rate in 100's bits per second */
 	rate64 = ((u64)sample->in_flight) * 8000000;
-	rate = (u32)div64_u64(rate64, (u64)(avg_rtt * 100));
+	rate = (u32)div64_u64(rate64, (u64)(avg_rtt ?: 1) * 100);
 
 	/* Remember the maximum rate seen during this RTT
 	 * Note: It may be more than one RTT. This function should be
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 11f69bbf9307..b6a2aa1dcf56 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -149,11 +149,19 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
 	 * is freed by GSO engine
 	 */
 	if (copy_destructor) {
+		int delta;
+
 		swap(gso_skb->sk, skb->sk);
 		swap(gso_skb->destructor, skb->destructor);
 		sum_truesize += skb->truesize;
-		refcount_add(sum_truesize - gso_skb->truesize,
-			   &skb->sk->sk_wmem_alloc);
+		delta = sum_truesize - gso_skb->truesize;
+		/* In some pathological cases, delta can be negative.
+		 * We need to either use refcount_add() or refcount_sub_and_test()
+		 */
+		if (likely(delta >= 0))
+			refcount_add(delta, &skb->sk->sk_wmem_alloc);
+		else
+			WARN_ON_ONCE(refcount_sub_and_test(-delta, &skb->sk->sk_wmem_alloc));
 	}
 
 	delta = htonl(oldlen + (skb_tail_pointer(skb) -
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 5b6690d05abb..5a42e873d44a 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -739,8 +739,10 @@ static void tcp_tsq_handler(struct sock *sk)
 		struct tcp_sock *tp = tcp_sk(sk);
 
 		if (tp->lost_out > tp->retrans_out &&
-		    tp->snd_cwnd > tcp_packets_in_flight(tp))
+		    tp->snd_cwnd > tcp_packets_in_flight(tp)) {
+			tcp_mstamp_refresh(tp);
 			tcp_xmit_retransmit_queue(sk);
+		}
 
 		tcp_write_xmit(sk, tcp_current_mss(sk), tp->nonagle,
 			       0, GFP_ATOMIC);
@@ -991,6 +993,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	struct tcp_skb_cb *tcb;
 	struct tcp_out_options opts;
 	unsigned int tcp_options_size, tcp_header_size;
+	struct sk_buff *oskb = NULL;
 	struct tcp_md5sig_key *md5;
 	struct tcphdr *th;
 	int err;
@@ -998,12 +1001,10 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 	BUG_ON(!skb || !tcp_skb_pcount(skb));
 	tp = tcp_sk(sk);
 
-	skb->skb_mstamp = tp->tcp_mstamp;
 	if (clone_it) {
 		TCP_SKB_CB(skb)->tx.in_flight = TCP_SKB_CB(skb)->end_seq
 			- tp->snd_una;
-		tcp_rate_skb_sent(sk, skb);
-
+		oskb = skb;
 		if (unlikely(skb_cloned(skb)))
 			skb = pskb_copy(skb, gfp_mask);
 		else
@@ -1011,6 +1012,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 		if (unlikely(!skb))
 			return -ENOBUFS;
 	}
+	skb->skb_mstamp = tp->tcp_mstamp;
 
 	inet = inet_sk(sk);
 	tcb = TCP_SKB_CB(skb);
@@ -1122,12 +1124,15 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 
 	err = icsk->icsk_af_ops->queue_xmit(sk, skb, &inet->cork.fl);
 
-	if (likely(err <= 0))
-		return err;
-
-	tcp_enter_cwr(sk);
-
-	return net_xmit_eval(err);
+	if (unlikely(err > 0)) {
+		tcp_enter_cwr(sk);
+		err = net_xmit_eval(err);
+	}
+	if (!err && oskb) {
+		oskb->skb_mstamp = tp->tcp_mstamp;
+		tcp_rate_skb_sent(sk, oskb);
+	}
+	return err;
 }
 
 /* This routine just queues the buffer for sending.
@@ -1803,40 +1808,6 @@ static bool tcp_snd_wnd_test(const struct tcp_sock *tp,
 	return !after(end_seq, tcp_wnd_end(tp));
 }
 
-/* This checks if the data bearing packet SKB (usually tcp_send_head(sk))
- * should be put on the wire right now.  If so, it returns the number of
- * packets allowed by the congestion window.
- */
-static unsigned int tcp_snd_test(const struct sock *sk, struct sk_buff *skb,
-				 unsigned int cur_mss, int nonagle)
-{
-	const struct tcp_sock *tp = tcp_sk(sk);
-	unsigned int cwnd_quota;
-
-	tcp_init_tso_segs(skb, cur_mss);
-
-	if (!tcp_nagle_test(tp, skb, cur_mss, nonagle))
-		return 0;
-
-	cwnd_quota = tcp_cwnd_test(tp, skb);
-	if (cwnd_quota && !tcp_snd_wnd_test(tp, skb, cur_mss))
-		cwnd_quota = 0;
-
-	return cwnd_quota;
-}
-
-/* Test if sending is allowed right now. */
-bool tcp_may_send_now(struct sock *sk)
-{
-	const struct tcp_sock *tp = tcp_sk(sk);
-	struct sk_buff *skb = tcp_send_head(sk);
-
-	return skb &&
-		tcp_snd_test(sk, skb, tcp_current_mss(sk),
-			     (tcp_skb_is_last(sk, skb) ?
-			      tp->nonagle : TCP_NAGLE_PUSH));
-}
-
 /* Trim TSO SKB to LEN bytes, put the remaining data into a new packet
  * which is put after SKB on the list.  It is very much like
  * tcp_fragment() except that it may make several kinds of assumptions
@@ -1939,7 +1910,7 @@ static bool tcp_tso_should_defer(struct sock *sk, struct sk_buff *skb,
 	if ((skb != tcp_write_queue_tail(sk)) && (limit >= skb->len))
 		goto send_now;
 
-	win_divisor = ACCESS_ONCE(sysctl_tcp_tso_win_divisor);
+	win_divisor = READ_ONCE(sysctl_tcp_tso_win_divisor);
 	if (win_divisor) {
 		u32 chunk = min(tp->snd_wnd, tp->snd_cwnd * tp->mss_cache);
 
@@ -2091,6 +2062,7 @@ static int tcp_mtu_probe(struct sock *sk)
 	nskb->ip_summed = skb->ip_summed;
 
 	tcp_insert_write_queue_before(nskb, skb, sk);
+	tcp_highest_sack_replace(sk, skb, nskb);
 
 	len = 0;
 	tcp_for_write_queue_from_safe(skb, next, sk) {
@@ -2268,6 +2240,7 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
 
 	sent_pkts = 0;
 
+	tcp_mstamp_refresh(tp);
 	if (!push_one) {
 		/* Do MTU probing. */
 		result = tcp_mtu_probe(sk);
@@ -2279,7 +2252,6 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
 	}
 
 	max_segs = tcp_tso_segs(sk, mss_now);
-	tcp_mstamp_refresh(tp);
 	while ((skb = tcp_send_head(sk))) {
 		unsigned int limit;
 
@@ -2694,7 +2666,7 @@ static bool tcp_collapse_retrans(struct sock *sk, struct sk_buff *skb)
 		else if (!skb_shift(skb, next_skb, next_skb_size))
 			return false;
 	}
-	tcp_highest_sack_combine(sk, next_skb, skb);
+	tcp_highest_sack_replace(sk, next_skb, skb);
 
 	tcp_unlink_write_queue(next_skb, sk);
 
@@ -2869,10 +2841,13 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb, int segs)
 		     skb_headroom(skb) >= 0xFFFF)) {
 		struct sk_buff *nskb;
 
-		skb->skb_mstamp = tp->tcp_mstamp;
 		nskb = __pskb_copy(skb, MAX_TCP_HEADER, GFP_ATOMIC);
 		err = nskb ? tcp_transmit_skb(sk, nskb, 0, GFP_ATOMIC) :
 			     -ENOBUFS;
+		if (!err) {
+			skb->skb_mstamp = tp->tcp_mstamp;
+			tcp_rate_skb_sent(sk, skb);
+		}
 	} else {
 		err = tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC);
 	}
@@ -3205,13 +3180,8 @@ struct sk_buff *tcp_make_synack(const struct sock *sk, struct dst_entry *dst,
 	th->source = htons(ireq->ir_num);
 	th->dest = ireq->ir_rmt_port;
 	skb->mark = ireq->ir_mark;
-	/* Setting of flags are superfluous here for callers (and ECE is
-	 * not even correctly set)
-	 */
-	tcp_init_nondata_skb(skb, tcp_rsk(req)->snt_isn,
-			     TCPHDR_SYN | TCPHDR_ACK);
-
-	th->seq = htonl(TCP_SKB_CB(skb)->seq);
+	skb->ip_summed = CHECKSUM_PARTIAL;
+	th->seq = htonl(tcp_rsk(req)->snt_isn);
 	/* XXX data is queued and acked as is. No buffer/window check */
 	th->ack_seq = htonl(tcp_rsk(req)->rcv_nxt);
 
@@ -3419,6 +3389,10 @@ static int tcp_send_syn_data(struct sock *sk, struct sk_buff *syn)
 		goto done;
 	}
 
+	/* data was not sent, this is our new send_head */
+	sk->sk_send_head = syn_data;
+	tp->packets_out -= tcp_skb_pcount(syn_data);
+
 fallback:
 	/* Send a regular SYN with Fast Open cookie request option */
 	if (fo->cookie.len > 0)
@@ -3471,6 +3445,11 @@ int tcp_connect(struct sock *sk)
 	 */
 	tp->snd_nxt = tp->write_seq;
 	tp->pushed_seq = tp->write_seq;
+	buff = tcp_send_head(sk);
+	if (unlikely(buff)) {
+		tp->snd_nxt	= TCP_SKB_CB(buff)->seq;
+		tp->pushed_seq	= TCP_SKB_CB(buff)->seq;
+	}
 	TCP_INC_STATS(sock_net(sk), TCP_MIB_ACTIVEOPENS);
 
 	/* Timer for repeating the SYN until an answer. */
diff --git a/net/ipv4/tcp_recovery.c b/net/ipv4/tcp_recovery.c
index 449cd914d58e..be8ef1e5dfef 100644
--- a/net/ipv4/tcp_recovery.c
+++ b/net/ipv4/tcp_recovery.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/tcp.h>
 #include <net/tcp.h>
 
diff --git a/net/ipv4/tcp_vegas.h b/net/ipv4/tcp_vegas.h
index 248cfc0ff9ae..4f24d0e37d9c 100644
--- a/net/ipv4/tcp_vegas.h
+++ b/net/ipv4/tcp_vegas.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * TCP Vegas congestion control interface
  */
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index ef29df8648e4..02ec9a349303 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -231,10 +231,7 @@ static int udp_reuseport_add_sock(struct sock *sk, struct udp_hslot *hslot)
 		}
 	}
 
-	/* Initial allocation may have already happened via setsockopt */
-	if (!rcu_access_pointer(sk->sk_reuseport_cb))
-		return reuseport_alloc(sk);
-	return 0;
+	return reuseport_alloc(sk);
 }
 
 /**
@@ -1061,7 +1058,7 @@ back_from_confirm:
 		/* ... which is an evident application bug. --ANK */
 		release_sock(sk);
 
-		net_dbg_ratelimited("cork app bug 2\n");
+		net_dbg_ratelimited("socket already corked\n");
 		err = -EINVAL;
 		goto out;
 	}
@@ -1144,7 +1141,7 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
 	if (unlikely(!up->pending)) {
 		release_sock(sk);
 
-		net_dbg_ratelimited("udp cork app bug 3\n");
+		net_dbg_ratelimited("cork failed\n");
 		return -EINVAL;
 	}
 
@@ -1856,7 +1853,7 @@ static int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		 */
 
 		/* if we're overly short, let UDP handle it */
-		encap_rcv = ACCESS_ONCE(up->encap_rcv);
+		encap_rcv = READ_ONCE(up->encap_rcv);
 		if (encap_rcv) {
 			int ret;
 
@@ -2221,9 +2218,10 @@ static struct sock *__udp4_lib_demux_lookup(struct net *net,
 	return NULL;
 }
 
-void udp_v4_early_demux(struct sk_buff *skb)
+int udp_v4_early_demux(struct sk_buff *skb)
 {
 	struct net *net = dev_net(skb->dev);
+	struct in_device *in_dev = NULL;
 	const struct iphdr *iph;
 	const struct udphdr *uh;
 	struct sock *sk = NULL;
@@ -2234,25 +2232,21 @@ void udp_v4_early_demux(struct sk_buff *skb)
 
 	/* validate the packet */
 	if (!pskb_may_pull(skb, skb_transport_offset(skb) + sizeof(struct udphdr)))
-		return;
+		return 0;
 
 	iph = ip_hdr(skb);
 	uh = udp_hdr(skb);
 
-	if (skb->pkt_type == PACKET_BROADCAST ||
-	    skb->pkt_type == PACKET_MULTICAST) {
-		struct in_device *in_dev = __in_dev_get_rcu(skb->dev);
+	if (skb->pkt_type == PACKET_MULTICAST) {
+		in_dev = __in_dev_get_rcu(skb->dev);
 
 		if (!in_dev)
-			return;
+			return 0;
 
-		/* we are supposed to accept bcast packets */
-		if (skb->pkt_type == PACKET_MULTICAST) {
-			ours = ip_check_mc_rcu(in_dev, iph->daddr, iph->saddr,
-					       iph->protocol);
-			if (!ours)
-				return;
-		}
+		ours = ip_check_mc_rcu(in_dev, iph->daddr, iph->saddr,
+				       iph->protocol);
+		if (!ours)
+			return 0;
 
 		sk = __udp4_lib_mcast_demux_lookup(net, uh->dest, iph->daddr,
 						   uh->source, iph->saddr,
@@ -2263,7 +2257,7 @@ void udp_v4_early_demux(struct sk_buff *skb)
 	}
 
 	if (!sk || !refcount_inc_not_zero(&sk->sk_refcnt))
-		return;
+		return 0;
 
 	skb->sk = sk;
 	skb->destructor = sock_efree;
@@ -2272,12 +2266,23 @@ void udp_v4_early_demux(struct sk_buff *skb)
 	if (dst)
 		dst = dst_check(dst, 0);
 	if (dst) {
+		u32 itag = 0;
+
 		/* set noref for now.
 		 * any place which wants to hold dst has to call
 		 * dst_hold_safe()
 		 */
 		skb_dst_set_noref(skb, dst);
+
+		/* for unconnected multicast sockets we need to validate
+		 * the source on each packet
+		 */
+		if (!inet_sk(sk)->inet_daddr && in_dev)
+			return ip_mc_validate_source(skb, iph->daddr,
+						     iph->saddr, iph->tos,
+						     skb->dev, in_dev, &itag);
 	}
+	return 0;
 }
 
 int udp_rcv(struct sk_buff *skb)
@@ -2293,7 +2298,7 @@ void udp_destroy_sock(struct sock *sk)
 	unlock_sock_fast(sk, slow);
 	if (static_key_false(&udp_encap_needed) && up->encap_type) {
 		void (*encap_destroy)(struct sock *sk);
-		encap_destroy = ACCESS_ONCE(up->encap_destroy);
+		encap_destroy = READ_ONCE(up->encap_destroy);
 		if (encap_destroy)
 			encap_destroy(sk);
 	}
diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h
index a8cf8c6fb60c..e7d18b140287 100644
--- a/net/ipv4/udp_impl.h
+++ b/net/ipv4/udp_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UDP4_IMPL_H
 #define _UDP4_IMPL_H
 #include <net/udp.h>
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 97658bfc1b58..e360d55be555 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -120,7 +120,7 @@ static struct sk_buff *__skb_udp_tunnel_segment(struct sk_buff *skb,
 		 * will be using a length value equal to only one MSS sized
 		 * segment instead of the entire frame.
 		 */
-		if (gso_partial) {
+		if (gso_partial && skb_is_gso(skb)) {
 			uh->len = htons(skb_shinfo(skb)->gso_size +
 					SKB_GSO_CB(skb)->data_offset +
 					skb->head - (unsigned char *)uh);
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index 1fc684111ce6..e50b7fea57ee 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm4_input.c
  *
diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index d7bf0b041885..05017e2c849c 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm4_policy.c
  *
diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index d6660a8c0ea5..80c40b4981bb 100644
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm4_state.c
  *
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index 10e342363793..e0026fa1261b 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux TCP/IP (INET6) layer.
 #
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index c2e2a78787ec..8a1c846d3df9 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1399,10 +1399,18 @@ static inline int ipv6_saddr_preferred(int type)
 	return 0;
 }
 
-static inline bool ipv6_use_optimistic_addr(struct inet6_dev *idev)
+static bool ipv6_use_optimistic_addr(struct net *net,
+				     struct inet6_dev *idev)
 {
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
-	return idev && idev->cnf.optimistic_dad && idev->cnf.use_optimistic;
+	if (!idev)
+		return false;
+	if (!net->ipv6.devconf_all->optimistic_dad && !idev->cnf.optimistic_dad)
+		return false;
+	if (!net->ipv6.devconf_all->use_optimistic && !idev->cnf.use_optimistic)
+		return false;
+
+	return true;
 #else
 	return false;
 #endif
@@ -1472,7 +1480,7 @@ static int ipv6_get_saddr_eval(struct net *net,
 		/* Rule 3: Avoid deprecated and optimistic addresses */
 		u8 avoid = IFA_F_DEPRECATED;
 
-		if (!ipv6_use_optimistic_addr(score->ifa->idev))
+		if (!ipv6_use_optimistic_addr(net, score->ifa->idev))
 			avoid |= IFA_F_OPTIMISTIC;
 		ret = ipv6_saddr_preferred(score->addr_type) ||
 		      !(score->ifa->flags & avoid);
@@ -2460,7 +2468,8 @@ int addrconf_prefix_rcv_add_addr(struct net *net, struct net_device *dev,
 		int max_addresses = in6_dev->cnf.max_addresses;
 
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
-		if (in6_dev->cnf.optimistic_dad &&
+		if ((net->ipv6.devconf_all->optimistic_dad ||
+		     in6_dev->cnf.optimistic_dad) &&
 		    !net->ipv6.devconf_all->forwarding && sllao)
 			addr_flags |= IFA_F_OPTIMISTIC;
 #endif
@@ -3051,7 +3060,8 @@ void addrconf_add_linklocal(struct inet6_dev *idev,
 	u32 addr_flags = flags | IFA_F_PERMANENT;
 
 #ifdef CONFIG_IPV6_OPTIMISTIC_DAD
-	if (idev->cnf.optimistic_dad &&
+	if ((dev_net(idev->dev)->ipv6.devconf_all->optimistic_dad ||
+	     idev->cnf.optimistic_dad) &&
 	    !dev_net(idev->dev)->ipv6.devconf_all->forwarding)
 		addr_flags |= IFA_F_OPTIMISTIC;
 #endif
@@ -3325,6 +3335,7 @@ static void addrconf_permanent_addr(struct net_device *dev)
 		if ((ifp->flags & IFA_F_PERMANENT) &&
 		    fixup_permanent_addr(idev, ifp) < 0) {
 			write_unlock_bh(&idev->lock);
+			in6_ifa_hold(ifp);
 			ipv6_del_addr(ifp);
 			write_lock_bh(&idev->lock);
 
@@ -3810,7 +3821,8 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 		goto out;
 
 	if (dev->flags&(IFF_NOARP|IFF_LOOPBACK) ||
-	    idev->cnf.accept_dad < 1 ||
+	    (dev_net(dev)->ipv6.devconf_all->accept_dad < 1 &&
+	     idev->cnf.accept_dad < 1) ||
 	    !(ifp->flags&IFA_F_TENTATIVE) ||
 	    ifp->flags & IFA_F_NODAD) {
 		bump_id = ifp->flags & IFA_F_TENTATIVE;
@@ -3841,7 +3853,7 @@ static void addrconf_dad_begin(struct inet6_ifaddr *ifp)
 	 */
 	if (ifp->flags & IFA_F_OPTIMISTIC) {
 		ip6_ins_rt(ifp->rt);
-		if (ipv6_use_optimistic_addr(idev)) {
+		if (ipv6_use_optimistic_addr(dev_net(dev), idev)) {
 			/* Because optimistic nodes can use this address,
 			 * notify listeners. If DAD fails, RTM_DELADDR is sent.
 			 */
@@ -3897,7 +3909,9 @@ static void addrconf_dad_work(struct work_struct *w)
 		action = DAD_ABORT;
 		ifp->state = INET6_IFADDR_STATE_POSTDAD;
 
-		if (idev->cnf.accept_dad > 1 && !idev->cnf.disable_ipv6 &&
+		if ((dev_net(idev->dev)->ipv6.devconf_all->accept_dad > 1 ||
+		     idev->cnf.accept_dad > 1) &&
+		    !idev->cnf.disable_ipv6 &&
 		    !(ifp->flags & IFA_F_STABLE_PRIVACY)) {
 			struct in6_addr addr;
 
@@ -4940,9 +4954,10 @@ static void inet6_ifa_notify(int event, struct inet6_ifaddr *ifa)
 
 	/* Don't send DELADDR notification for TENTATIVE address,
 	 * since NEWADDR notification is sent only after removing
-	 * TENTATIVE flag.
+	 * TENTATIVE flag, if DAD has not failed.
 	 */
-	if (ifa->flags & IFA_F_TENTATIVE && event == RTM_DELADDR)
+	if (ifa->flags & IFA_F_TENTATIVE && !(ifa->flags & IFA_F_DADFAILED) &&
+	    event == RTM_DELADDR)
 		return;
 
 	skb = nlmsg_new(inet6_ifaddr_msgsize(), GFP_ATOMIC);
diff --git a/net/ipv6/addrlabel.c b/net/ipv6/addrlabel.c
index b055bc79f56d..f664871feca6 100644
--- a/net/ipv6/addrlabel.c
+++ b/net/ipv6/addrlabel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IPv6 Address Label subsystem
  * for the IPv6 "Default" Source Address Selection
diff --git a/net/ipv6/ah6.c b/net/ipv6/ah6.c
index 7802b72196f3..3bd9d806b506 100644
--- a/net/ipv6/ah6.c
+++ b/net/ipv6/ah6.c
@@ -443,7 +443,7 @@ static int ah6_output(struct xfrm_state *x, struct sk_buff *skb)
 		if (err == -EINPROGRESS)
 			goto out;
 
-		if (err == -EBUSY)
+		if (err == -ENOSPC)
 			err = NET_XMIT_DROP;
 		goto out_free;
 	}
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 89910e2c10f4..c04d995df37c 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -396,7 +396,7 @@ int esp6_output_tail(struct xfrm_state *x, struct sk_buff *skb, struct esp_info
 	case -EINPROGRESS:
 		goto error;
 
-	case -EBUSY:
+	case -ENOSPC:
 		err = NET_XMIT_DROP;
 		break;
 
diff --git a/net/ipv6/ila/ila_lwt.c b/net/ipv6/ila/ila_lwt.c
index 0c02a09bc351..696281b4bca2 100644
--- a/net/ipv6/ila/ila_lwt.c
+++ b/net/ipv6/ila/ila_lwt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/errno.h>
 #include <linux/ip.h>
 #include <linux/kernel.h>
diff --git a/net/ipv6/ila/ila_xlat.c b/net/ipv6/ila/ila_xlat.c
index 5bd419c1abc8..3123b9de91b5 100644
--- a/net/ipv6/ila/ila_xlat.c
+++ b/net/ipv6/ila/ila_xlat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/jhash.h>
 #include <linux/netfilter.h>
 #include <linux/rcupdate.h>
diff --git a/net/ipv6/ip6_checksum.c b/net/ipv6/ip6_checksum.c
index c0cbcb259f5a..ec43d18b5ff9 100644
--- a/net/ipv6/ip6_checksum.c
+++ b/net/ipv6/ip6_checksum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <net/ip.h>
 #include <net/udp.h>
 #include <net/udplite.h>
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 8081bafe441b..9f2e73c71768 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -47,7 +47,7 @@ static atomic_t fl_size = ATOMIC_INIT(0);
 static struct ip6_flowlabel __rcu *fl_ht[FL_HASH_MASK+1];
 
 static void ip6_fl_gc(unsigned long dummy);
-static DEFINE_TIMER(ip6_fl_gc_timer, ip6_fl_gc, 0, 0);
+static DEFINE_TIMER(ip6_fl_gc_timer, ip6_fl_gc);
 
 /* FL hash table lock: it protects only of GC */
 
@@ -315,6 +315,7 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
 	}
 	opt_space->dst1opt = fopt->dst1opt;
 	opt_space->opt_flen = fopt->opt_flen;
+	opt_space->tot_len = fopt->tot_len;
 	return opt_space;
 }
 EXPORT_SYMBOL_GPL(fl6_merge_options);
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index b7a72d409334..59c121b932ac 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -408,13 +408,16 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 	case ICMPV6_DEST_UNREACH:
 		net_dbg_ratelimited("%s: Path to destination invalid or inactive!\n",
 				    t->parms.name);
-		break;
+		if (code != ICMPV6_PORT_UNREACH)
+			break;
+		return;
 	case ICMPV6_TIME_EXCEED:
 		if (code == ICMPV6_EXC_HOPLIMIT) {
 			net_dbg_ratelimited("%s: Too small hop limit or routing loop in tunnel!\n",
 					    t->parms.name);
+			break;
 		}
-		break;
+		return;
 	case ICMPV6_PARAMPROB:
 		teli = 0;
 		if (code == ICMPV6_HDR_FIELD)
@@ -430,7 +433,7 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 			net_dbg_ratelimited("%s: Recipient unable to parse tunneled packet!\n",
 					    t->parms.name);
 		}
-		break;
+		return;
 	case ICMPV6_PKT_TOOBIG:
 		mtu = be32_to_cpu(info) - offset - t->tun_hlen;
 		if (t->dev->type == ARPHRD_ETHER)
@@ -438,7 +441,7 @@ static void ip6gre_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		if (mtu < IPV6_MIN_MTU)
 			mtu = IPV6_MIN_MTU;
 		t->dev->mtu = mtu;
-		break;
+		return;
 	}
 
 	if (time_before(jiffies, t->err_time + IP6TUNNEL_ERR_TIMEO))
@@ -500,8 +503,8 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
 			       __u32 *pmtu, __be16 proto)
 {
 	struct ip6_tnl *tunnel = netdev_priv(dev);
-	__be16 protocol = (dev->type == ARPHRD_ETHER) ?
-			  htons(ETH_P_TEB) : proto;
+	struct dst_entry *dst = skb_dst(skb);
+	__be16 protocol;
 
 	if (dev->type == ARPHRD_ETHER)
 		IPCB(skb)->flags = 0;
@@ -515,9 +518,14 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
 		tunnel->o_seqno++;
 
 	/* Push GRE header. */
+	protocol = (dev->type == ARPHRD_ETHER) ? htons(ETH_P_TEB) : proto;
 	gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,
 			 protocol, tunnel->parms.o_key, htonl(tunnel->o_seqno));
 
+	/* TooBig packet may have updated dst->dev's mtu */
+	if (dst && dst_mtu(dst) > dst->dev->mtu)
+		dst->ops->update_pmtu(dst, NULL, skb, dst->dev->mtu);
+
 	return ip6_tnl_xmit(skb, dev, dsfield, fl6, encap_limit, pmtu,
 			    NEXTHDR_GRE);
 }
@@ -940,24 +948,25 @@ done:
 }
 
 static int ip6gre_header(struct sk_buff *skb, struct net_device *dev,
-			unsigned short type,
-			const void *daddr, const void *saddr, unsigned int len)
+			 unsigned short type, const void *daddr,
+			 const void *saddr, unsigned int len)
 {
 	struct ip6_tnl *t = netdev_priv(dev);
-	struct ipv6hdr *ipv6h = skb_push(skb, t->hlen);
-	__be16 *p = (__be16 *)(ipv6h+1);
+	struct ipv6hdr *ipv6h;
+	__be16 *p;
 
-	ip6_flow_hdr(ipv6h, 0,
-		     ip6_make_flowlabel(dev_net(dev), skb,
-					t->fl.u.ip6.flowlabel, true,
-					&t->fl.u.ip6));
+	ipv6h = skb_push(skb, t->hlen + sizeof(*ipv6h));
+	ip6_flow_hdr(ipv6h, 0, ip6_make_flowlabel(dev_net(dev), skb,
+						  t->fl.u.ip6.flowlabel,
+						  true, &t->fl.u.ip6));
 	ipv6h->hop_limit = t->parms.hop_limit;
 	ipv6h->nexthdr = NEXTHDR_GRE;
 	ipv6h->saddr = t->parms.laddr;
 	ipv6h->daddr = t->parms.raddr;
 
-	p[0]		= t->parms.o_flags;
-	p[1]		= htons(type);
+	p = (__be16 *)(ipv6h + 1);
+	p[0] = t->parms.o_flags;
+	p[1] = htons(type);
 
 	/*
 	 *	Set the source hardware address.
@@ -1310,6 +1319,7 @@ static void ip6gre_tap_setup(struct net_device *dev)
 	dev->features |= NETIF_F_NETNS_LOCAL;
 	dev->priv_flags &= ~IFF_TX_SKB_SHARING;
 	dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
+	netif_keep_dst(dev);
 }
 
 static bool ip6gre_netlink_encap_parms(struct nlattr *data[],
diff --git a/net/ipv6/ip6_icmp.c b/net/ipv6/ip6_icmp.c
index 713676f14a0e..02045494c24c 100644
--- a/net/ipv6/ip6_icmp.c
+++ b/net/ipv6/ip6_icmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/export.h>
 #include <linux/icmpv6.h>
 #include <linux/mutex.h>
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index cdb3728faca7..4a87f9428ca5 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -105,7 +105,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 
 	for (skb = segs; skb; skb = skb->next) {
 		ipv6h = (struct ipv6hdr *)(skb_mac_header(skb) + nhoff);
-		if (gso_partial)
+		if (gso_partial && skb_is_gso(skb))
 			payload_len = skb_shinfo(skb)->gso_size +
 				      SKB_GSO_CB(skb)->data_offset +
 				      skb->head - (unsigned char *)(ipv6h + 1);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 43ca864327c7..5110a418cc4d 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1161,11 +1161,11 @@ static int ip6_setup_cork(struct sock *sk, struct inet_cork_full *cork,
 		if (WARN_ON(v6_cork->opt))
 			return -EINVAL;
 
-		v6_cork->opt = kzalloc(opt->tot_len, sk->sk_allocation);
+		v6_cork->opt = kzalloc(sizeof(*opt), sk->sk_allocation);
 		if (unlikely(!v6_cork->opt))
 			return -ENOBUFS;
 
-		v6_cork->opt->tot_len = opt->tot_len;
+		v6_cork->opt->tot_len = sizeof(*opt);
 		v6_cork->opt->opt_flen = opt->opt_flen;
 		v6_cork->opt->opt_nflen = opt->opt_nflen;
 
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 10a693a19323..dab946554157 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -171,7 +171,7 @@ ip6_tnl_lookup(struct net *net, const struct in6_addr *remote, const struct in6_
 	}
 
 	t = rcu_dereference(ip6n->collect_md_tun);
-	if (t)
+	if (t && t->dev->flags & IFF_UP)
 		return t;
 
 	t = rcu_dereference(ip6n->tnls_wc[0]);
@@ -490,7 +490,7 @@ ip6_tnl_err(struct sk_buff *skb, __u8 ipproto, struct inet6_skb_parm *opt,
 	if (!t)
 		goto out;
 
-	tproto = ACCESS_ONCE(t->parms.proto);
+	tproto = READ_ONCE(t->parms.proto);
 	if (tproto != ipproto && tproto != 0)
 		goto out;
 
@@ -899,7 +899,7 @@ static int ipxip6_rcv(struct sk_buff *skb, u8 ipproto,
 	t = ip6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr, &ipv6h->daddr);
 
 	if (t) {
-		u8 tproto = ACCESS_ONCE(t->parms.proto);
+		u8 tproto = READ_ONCE(t->parms.proto);
 
 		if (tproto != ipproto && tproto != 0)
 			goto drop;
@@ -1043,6 +1043,7 @@ int ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev, __u8 dsfield,
 	struct dst_entry *dst = NULL, *ndst = NULL;
 	struct net_device *tdev;
 	int mtu;
+	unsigned int eth_hlen = t->dev->type == ARPHRD_ETHER ? ETH_HLEN : 0;
 	unsigned int psh_hlen = sizeof(struct ipv6hdr) + t->encap_hlen;
 	unsigned int max_headroom = psh_hlen;
 	bool use_cache = false;
@@ -1124,7 +1125,7 @@ route_lookup:
 				     t->parms.name);
 		goto tx_err_dst_release;
 	}
-	mtu = dst_mtu(dst) - psh_hlen - t->tun_hlen;
+	mtu = dst_mtu(dst) - eth_hlen - psh_hlen - t->tun_hlen;
 	if (encap_limit >= 0) {
 		max_headroom += 8;
 		mtu -= 8;
@@ -1133,7 +1134,7 @@ route_lookup:
 		mtu = IPV6_MIN_MTU;
 	if (skb_dst(skb) && !t->parms.collect_md)
 		skb_dst(skb)->ops->update_pmtu(skb_dst(skb), NULL, skb, mtu);
-	if (skb->len - t->tun_hlen > mtu && !skb_is_gso(skb)) {
+	if (skb->len - t->tun_hlen - eth_hlen > mtu && !skb_is_gso(skb)) {
 		*pmtu = mtu;
 		err = -EMSGSIZE;
 		goto tx_err_dst_release;
@@ -1232,7 +1233,7 @@ ip4ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
 
-	tproto = ACCESS_ONCE(t->parms.proto);
+	tproto = READ_ONCE(t->parms.proto);
 	if (tproto != IPPROTO_IPIP && tproto != 0)
 		return -1;
 
@@ -1302,7 +1303,7 @@ ip6ip6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
 	u8 tproto;
 	int err;
 
-	tproto = ACCESS_ONCE(t->parms.proto);
+	tproto = READ_ONCE(t->parms.proto);
 	if ((tproto != IPPROTO_IPV6 && tproto != 0) ||
 	    ip6_tnl_addr_conflict(t, ipv6h))
 		return -1;
@@ -2259,6 +2260,9 @@ static int __init ip6_tunnel_init(void)
 {
 	int  err;
 
+	if (!ipv6_mod_enabled())
+		return -EOPNOTSUPP;
+
 	err = register_pernet_device(&ip6_tnl_net_ops);
 	if (err < 0)
 		goto out_pernet;
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
index 79444a4bfd6d..bcdc2d557de1 100644
--- a/net/ipv6/ip6_vti.c
+++ b/net/ipv6/ip6_vti.c
@@ -445,6 +445,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
 	struct dst_entry *dst = skb_dst(skb);
 	struct net_device *tdev;
 	struct xfrm_state *x;
+	int pkt_len = skb->len;
 	int err = -1;
 	int mtu;
 
@@ -502,7 +503,7 @@ vti6_xmit(struct sk_buff *skb, struct net_device *dev, struct flowi *fl)
 		struct pcpu_sw_netstats *tstats = this_cpu_ptr(dev->tstats);
 
 		u64_stats_update_begin(&tstats->syncp);
-		tstats->tx_bytes += skb->len;
+		tstats->tx_bytes += pkt_len;
 		tstats->tx_packets++;
 		u64_stats_update_end(&tstats->syncp);
 	} else {
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index fe180c96040e..c6ee0cdd0ba9 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the netfilter modules on top of IPv6.
 #
diff --git a/net/ipv6/netfilter/ip6t_SYNPROXY.c b/net/ipv6/netfilter/ip6t_SYNPROXY.c
index a5cd43d75393..437af8c95277 100644
--- a/net/ipv6/netfilter/ip6t_SYNPROXY.c
+++ b/net/ipv6/netfilter/ip6t_SYNPROXY.c
@@ -353,7 +353,7 @@ static unsigned int ipv6_synproxy_hook(void *priv,
 	nexthdr = ipv6_hdr(skb)->nexthdr;
 	thoff = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr), &nexthdr,
 				 &frag_off);
-	if (thoff < 0)
+	if (thoff < 0 || nexthdr != IPPROTO_TCP)
 		return NF_ACCEPT;
 
 	th = skb_header_pointer(skb, thoff, sizeof(_th), &_th);
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 26cc9f483b6d..a96d5b385d8f 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1325,7 +1325,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori
 	struct dst_entry *new = NULL;
 
 	rt = dst_alloc(&ip6_dst_blackhole_ops, loopback_dev, 1,
-		       DST_OBSOLETE_NONE, 0);
+		       DST_OBSOLETE_DEAD, 0);
 	if (rt) {
 		rt6_info_init(rt);
 
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 7ff54db73a48..825b8e01f947 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -72,10 +72,6 @@ static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
 
 	srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
 
-	/* make sure it's a Segment Routing header (Routing Type 4) */
-	if (srh->type != IPV6_SRCRT_TYPE_4)
-		return NULL;
-
 	len = (srh->hdrlen + 1) << 3;
 
 	if (!pskb_may_pull(skb, srhoff + len))
diff --git a/net/ipv6/sysctl_net_ipv6.c b/net/ipv6/sysctl_net_ipv6.c
index 6fbf8ae5e52c..f7051ba5b8af 100644
--- a/net/ipv6/sysctl_net_ipv6.c
+++ b/net/ipv6/sysctl_net_ipv6.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sysctl_net_ipv6.c: sysctl interface to net IPV6 subsystem.
  *
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index e2ecfb137297..3f30fa313bf2 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -606,7 +606,7 @@ static int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		 */
 
 		/* if we're overly short, let UDP handle it */
-		encap_rcv = ACCESS_ONCE(up->encap_rcv);
+		encap_rcv = READ_ONCE(up->encap_rcv);
 		if (encap_rcv) {
 			int ret;
 
@@ -1015,6 +1015,7 @@ static void udp6_hwcsum_outgoing(struct sock *sk, struct sk_buff *skb,
 		 */
 		offset = skb_transport_offset(skb);
 		skb->csum = skb_checksum(skb, offset, skb->len - offset, 0);
+		csum = skb->csum;
 
 		skb->ip_summed = CHECKSUM_NONE;
 
@@ -1431,7 +1432,7 @@ void udpv6_destroy_sock(struct sock *sk)
 
 	if (static_key_false(&udpv6_encap_needed) && up->encap_type) {
 		void (*encap_destroy)(struct sock *sk);
-		encap_destroy = ACCESS_ONCE(up->encap_destroy);
+		encap_destroy = READ_ONCE(up->encap_destroy);
 		if (encap_destroy)
 			encap_destroy(sk);
 	}
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index f180b3d85e31..7903e21c178b 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UDP6_IMPL_H
 #define _UDP6_IMPL_H
 #include <net/udp.h>
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index f95943a13abc..fe04e23af986 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm6_input.c: based on net/ipv4/xfrm4_input.c
  *
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 11d1314ab6c5..17e95a0386b3 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm6_policy.c: based on xfrm4_policy.c
  *
diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c
index 8a1f9c0d2a13..b15075a5c227 100644
--- a/net/ipv6/xfrm6_state.c
+++ b/net/ipv6/xfrm6_state.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm6_state.c: based on xfrm4_state.c
  *
diff --git a/net/ipx/ipx_proc.c b/net/ipx/ipx_proc.c
index 7d75e4c5c75d..38a3d51d9ead 100644
--- a/net/ipx/ipx_proc.c
+++ b/net/ipx/ipx_proc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	IPX proc routines
  *
diff --git a/net/ipx/ipx_route.c b/net/ipx/ipx_route.c
index b5d91447f3dc..3cf93aa9f284 100644
--- a/net/ipx/ipx_route.c
+++ b/net/ipx/ipx_route.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *	Implements the IPX routing routines.
  *	Code moved from af_ipx.c.
diff --git a/net/ipx/pe2.c b/net/ipx/pe2.c
index 32dcd601ab32..ba7d4214bbff 100644
--- a/net/ipx/pe2.c
+++ b/net/ipx/pe2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/in.h>
 #include <linux/mm.h>
 #include <linux/module.h>
diff --git a/net/ipx/sysctl_net_ipx.c b/net/ipx/sysctl_net_ipx.c
index 0dafcc561ed6..c3eef457db88 100644
--- a/net/ipx/sysctl_net_ipx.c
+++ b/net/ipx/sysctl_net_ipx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* -*- linux-c -*-
  * sysctl_net_ipx.c: sysctl interface to net IPX subsystem.
  *
diff --git a/net/kcm/kcmproc.c b/net/kcm/kcmproc.c
index c748e8a6a72c..bd5723315069 100644
--- a/net/kcm/kcmproc.c
+++ b/net/kcm/kcmproc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/in.h>
 #include <linux/inet.h>
 #include <linux/list.h>
diff --git a/net/l2tp/Makefile b/net/l2tp/Makefile
index 2870f41ea44d..399a7e5db2f4 100644
--- a/net/l2tp/Makefile
+++ b/net/l2tp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the L2TP.
 #
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index ee485df73ccd..02d61101b108 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1314,6 +1314,9 @@ again:
 
 			hlist_del_init(&session->hlist);
 
+			if (test_and_set_bit(0, &session->dead))
+				goto again;
+
 			if (session->ref != NULL)
 				(*session->ref)(session);
 
@@ -1685,14 +1688,12 @@ EXPORT_SYMBOL_GPL(l2tp_tunnel_create);
 
 /* This function is used by the netlink TUNNEL_DELETE command.
  */
-int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel)
+void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel)
 {
-	l2tp_tunnel_inc_refcount(tunnel);
-	if (false == queue_work(l2tp_wq, &tunnel->del_work)) {
-		l2tp_tunnel_dec_refcount(tunnel);
-		return 1;
+	if (!test_and_set_bit(0, &tunnel->dead)) {
+		l2tp_tunnel_inc_refcount(tunnel);
+		queue_work(l2tp_wq, &tunnel->del_work);
 	}
-	return 0;
 }
 EXPORT_SYMBOL_GPL(l2tp_tunnel_delete);
 
@@ -1750,6 +1751,9 @@ EXPORT_SYMBOL_GPL(__l2tp_session_unhash);
  */
 int l2tp_session_delete(struct l2tp_session *session)
 {
+	if (test_and_set_bit(0, &session->dead))
+		return 0;
+
 	if (session->ref)
 		(*session->ref)(session);
 	__l2tp_session_unhash(session);
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index a305e0c5925a..67c79d9b5c6c 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -76,6 +76,7 @@ struct l2tp_session_cfg {
 struct l2tp_session {
 	int			magic;		/* should be
 						 * L2TP_SESSION_MAGIC */
+	long			dead;
 
 	struct l2tp_tunnel	*tunnel;	/* back pointer to tunnel
 						 * context */
@@ -160,6 +161,9 @@ struct l2tp_tunnel_cfg {
 
 struct l2tp_tunnel {
 	int			magic;		/* Should be L2TP_TUNNEL_MAGIC */
+
+	unsigned long		dead;
+
 	struct rcu_head rcu;
 	rwlock_t		hlist_lock;	/* protect session_hlist */
 	bool			acpt_newsess;	/* Indicates whether this
@@ -254,7 +258,7 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id,
 		       u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg,
 		       struct l2tp_tunnel **tunnelp);
 void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
-int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
+void l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
 struct l2tp_session *l2tp_session_create(int priv_size,
 					 struct l2tp_tunnel *tunnel,
 					 u32 session_id, u32 peer_session_id,
diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c
index 87da9ef61860..014a7bc2a872 100644
--- a/net/l2tp/l2tp_eth.c
+++ b/net/l2tp/l2tp_eth.c
@@ -44,7 +44,6 @@ struct l2tp_eth {
 	struct net_device	*dev;
 	struct sock		*tunnel_sock;
 	struct l2tp_session	*session;
-	struct list_head	list;
 	atomic_long_t		tx_bytes;
 	atomic_long_t		tx_packets;
 	atomic_long_t		tx_dropped;
@@ -58,17 +57,6 @@ struct l2tp_eth_sess {
 	struct net_device	*dev;
 };
 
-/* per-net private data for this module */
-static unsigned int l2tp_eth_net_id;
-struct l2tp_eth_net {
-	struct list_head l2tp_eth_dev_list;
-	spinlock_t l2tp_eth_lock;
-};
-
-static inline struct l2tp_eth_net *l2tp_eth_pernet(struct net *net)
-{
-	return net_generic(net, l2tp_eth_net_id);
-}
 
 static int l2tp_eth_dev_init(struct net_device *dev)
 {
@@ -84,12 +72,6 @@ static int l2tp_eth_dev_init(struct net_device *dev)
 
 static void l2tp_eth_dev_uninit(struct net_device *dev)
 {
-	struct l2tp_eth *priv = netdev_priv(dev);
-	struct l2tp_eth_net *pn = l2tp_eth_pernet(dev_net(dev));
-
-	spin_lock(&pn->l2tp_eth_lock);
-	list_del_init(&priv->list);
-	spin_unlock(&pn->l2tp_eth_lock);
 	dev_put(dev);
 }
 
@@ -273,7 +255,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
 	struct l2tp_eth *priv;
 	struct l2tp_eth_sess *spriv;
 	int rc;
-	struct l2tp_eth_net *pn;
 
 	if (cfg->ifname) {
 		strlcpy(name, cfg->ifname, IFNAMSIZ);
@@ -305,7 +286,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
 	priv = netdev_priv(dev);
 	priv->dev = dev;
 	priv->session = session;
-	INIT_LIST_HEAD(&priv->list);
 
 	priv->tunnel_sock = tunnel->sock;
 	session->recv_skb = l2tp_eth_dev_recv;
@@ -326,10 +306,6 @@ static int l2tp_eth_create(struct net *net, struct l2tp_tunnel *tunnel,
 	strlcpy(session->ifname, dev->name, IFNAMSIZ);
 
 	dev_hold(dev);
-	pn = l2tp_eth_pernet(dev_net(dev));
-	spin_lock(&pn->l2tp_eth_lock);
-	list_add(&priv->list, &pn->l2tp_eth_dev_list);
-	spin_unlock(&pn->l2tp_eth_lock);
 
 	return 0;
 
@@ -342,22 +318,6 @@ out:
 	return rc;
 }
 
-static __net_init int l2tp_eth_init_net(struct net *net)
-{
-	struct l2tp_eth_net *pn = net_generic(net, l2tp_eth_net_id);
-
-	INIT_LIST_HEAD(&pn->l2tp_eth_dev_list);
-	spin_lock_init(&pn->l2tp_eth_lock);
-
-	return 0;
-}
-
-static struct pernet_operations l2tp_eth_net_ops = {
-	.init = l2tp_eth_init_net,
-	.id   = &l2tp_eth_net_id,
-	.size = sizeof(struct l2tp_eth_net),
-};
-
 
 static const struct l2tp_nl_cmd_ops l2tp_eth_nl_cmd_ops = {
 	.session_create	= l2tp_eth_create,
@@ -371,25 +331,18 @@ static int __init l2tp_eth_init(void)
 
 	err = l2tp_nl_register_ops(L2TP_PWTYPE_ETH, &l2tp_eth_nl_cmd_ops);
 	if (err)
-		goto out;
-
-	err = register_pernet_device(&l2tp_eth_net_ops);
-	if (err)
-		goto out_unreg;
+		goto err;
 
 	pr_info("L2TP ethernet pseudowire support (L2TPv3)\n");
 
 	return 0;
 
-out_unreg:
-	l2tp_nl_unregister_ops(L2TP_PWTYPE_ETH);
-out:
+err:
 	return err;
 }
 
 static void __exit l2tp_eth_exit(void)
 {
-	unregister_pernet_device(&l2tp_eth_net_ops);
 	l2tp_nl_unregister_ops(L2TP_PWTYPE_ETH);
 }
 
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 4d322c1b7233..e4280b6568b4 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -123,6 +123,7 @@ static int l2tp_ip_recv(struct sk_buff *skb)
 	unsigned char *ptr, *optr;
 	struct l2tp_session *session;
 	struct l2tp_tunnel *tunnel = NULL;
+	struct iphdr *iph;
 	int length;
 
 	if (!pskb_may_pull(skb, 4))
@@ -178,24 +179,17 @@ pass_up:
 		goto discard;
 
 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
-	tunnel = l2tp_tunnel_find(net, tunnel_id);
-	if (tunnel) {
-		sk = tunnel->sock;
-		sock_hold(sk);
-	} else {
-		struct iphdr *iph = (struct iphdr *) skb_network_header(skb);
-
-		read_lock_bh(&l2tp_ip_lock);
-		sk = __l2tp_ip_bind_lookup(net, iph->daddr, iph->saddr,
-					   inet_iif(skb), tunnel_id);
-		if (!sk) {
-			read_unlock_bh(&l2tp_ip_lock);
-			goto discard;
-		}
+	iph = (struct iphdr *)skb_network_header(skb);
 
-		sock_hold(sk);
+	read_lock_bh(&l2tp_ip_lock);
+	sk = __l2tp_ip_bind_lookup(net, iph->daddr, iph->saddr, inet_iif(skb),
+				   tunnel_id);
+	if (!sk) {
 		read_unlock_bh(&l2tp_ip_lock);
+		goto discard;
 	}
+	sock_hold(sk);
+	read_unlock_bh(&l2tp_ip_lock);
 
 	if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb))
 		goto discard_put;
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index 88b397c30d86..8bcaa975b432 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -136,6 +136,7 @@ static int l2tp_ip6_recv(struct sk_buff *skb)
 	unsigned char *ptr, *optr;
 	struct l2tp_session *session;
 	struct l2tp_tunnel *tunnel = NULL;
+	struct ipv6hdr *iph;
 	int length;
 
 	if (!pskb_may_pull(skb, 4))
@@ -192,24 +193,17 @@ pass_up:
 		goto discard;
 
 	tunnel_id = ntohl(*(__be32 *) &skb->data[4]);
-	tunnel = l2tp_tunnel_find(net, tunnel_id);
-	if (tunnel) {
-		sk = tunnel->sock;
-		sock_hold(sk);
-	} else {
-		struct ipv6hdr *iph = ipv6_hdr(skb);
-
-		read_lock_bh(&l2tp_ip6_lock);
-		sk = __l2tp_ip6_bind_lookup(net, &iph->daddr, &iph->saddr,
-					    inet6_iif(skb), tunnel_id);
-		if (!sk) {
-			read_unlock_bh(&l2tp_ip6_lock);
-			goto discard;
-		}
+	iph = ipv6_hdr(skb);
 
-		sock_hold(sk);
+	read_lock_bh(&l2tp_ip6_lock);
+	sk = __l2tp_ip6_bind_lookup(net, &iph->daddr, &iph->saddr,
+				    inet6_iif(skb), tunnel_id);
+	if (!sk) {
 		read_unlock_bh(&l2tp_ip6_lock);
+		goto discard;
 	}
+	sock_hold(sk);
+	read_unlock_bh(&l2tp_ip6_lock);
 
 	if (!xfrm6_policy_check(sk, XFRM_POLICY_IN, skb))
 		goto discard_put;
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 50e3ee9a9d61..0c2738349442 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -437,11 +437,11 @@ static void pppol2tp_session_close(struct l2tp_session *session)
 
 	BUG_ON(session->magic != L2TP_SESSION_MAGIC);
 
-	if (sock) {
+	if (sock)
 		inet_shutdown(sock, SEND_SHUTDOWN);
-		/* Don't let the session go away before our socket does */
-		l2tp_session_inc_refcount(session);
-	}
+
+	/* Don't let the session go away before our socket does */
+	l2tp_session_inc_refcount(session);
 }
 
 /* Really kill the session socket. (Called from sock_put() if
@@ -584,6 +584,7 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
 	u32 tunnel_id, peer_tunnel_id;
 	u32 session_id, peer_session_id;
 	bool drop_refcnt = false;
+	bool drop_tunnel = false;
 	int ver = 2;
 	int fd;
 
@@ -652,7 +653,9 @@ static int pppol2tp_connect(struct socket *sock, struct sockaddr *uservaddr,
 	if (tunnel_id == 0)
 		goto end;
 
-	tunnel = l2tp_tunnel_find(sock_net(sk), tunnel_id);
+	tunnel = l2tp_tunnel_get(sock_net(sk), tunnel_id);
+	if (tunnel)
+		drop_tunnel = true;
 
 	/* Special case: create tunnel context if session_id and
 	 * peer_session_id is 0. Otherwise look up tunnel using supplied
@@ -781,6 +784,8 @@ out_no_ppp:
 end:
 	if (drop_refcnt)
 		l2tp_session_dec_refcount(session);
+	if (drop_tunnel)
+		l2tp_tunnel_dec_refcount(tunnel);
 	release_sock(sk);
 
 	return error;
@@ -988,6 +993,9 @@ static int pppol2tp_session_ioctl(struct l2tp_session *session,
 		 session->name, cmd, arg);
 
 	sk = ps->sock;
+	if (!sk)
+		return -EBADR;
+
 	sock_hold(sk);
 
 	switch (cmd) {
diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c
index dd3e83328ad5..82cb93f66b9b 100644
--- a/net/llc/llc_input.c
+++ b/net/llc/llc_input.c
@@ -193,7 +193,7 @@ int llc_rcv(struct sk_buff *skb, struct net_device *dev,
 	 */
 	rcv = rcu_dereference(sap->rcv_func);
 	dest = llc_pdu_type(skb);
-	sap_handler = dest ? ACCESS_ONCE(llc_type_handlers[dest - 1]) : NULL;
+	sap_handler = dest ? READ_ONCE(llc_type_handlers[dest - 1]) : NULL;
 	if (unlikely(!sap_handler)) {
 		if (rcv)
 			rcv(skb, dev, pt, orig_dev);
@@ -214,7 +214,7 @@ drop:
 	kfree_skb(skb);
 	goto out;
 handle_station:
-	sta_handler = ACCESS_ONCE(llc_station_handler);
+	sta_handler = READ_ONCE(llc_station_handler);
 	if (!sta_handler)
 		goto drop;
 	sta_handler(skb);
diff --git a/net/llc/sysctl_net_llc.c b/net/llc/sysctl_net_llc.c
index 799bafc2af39..8443a6d841b0 100644
--- a/net/llc/sysctl_net_llc.c
+++ b/net/llc/sysctl_net_llc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sysctl_net_llc.c: sysctl interface to LLC net subsystem.
  *
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index 282912245938..80bfe29099f6 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_MAC80211) += mac80211.o
 
 # mac80211 objects
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index a354f1939e49..fb15d3b97cb2 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2727,12 +2727,6 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 	if (!ieee80211_sdata_running(sdata))
 		return -ENETDOWN;
 
-	if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
-		ret = drv_set_bitrate_mask(local, sdata, mask);
-		if (ret)
-			return ret;
-	}
-
 	/*
 	 * If active validate the setting and reject it if it doesn't leave
 	 * at least one basic rate usable, since we really have to be able
@@ -2748,6 +2742,12 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
 			return -EINVAL;
 	}
 
+	if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
+		ret = drv_set_bitrate_mask(local, sdata, mask);
+		if (ret)
+			return ret;
+	}
+
 	for (i = 0; i < NUM_NL80211_BANDS; i++) {
 		struct ieee80211_supported_band *sband = wiphy->bands[i];
 		int j;
diff --git a/net/mac80211/debug.h b/net/mac80211/debug.h
index 1956b3115dd5..d90a8f9cc3fd 100644
--- a/net/mac80211/debug.h
+++ b/net/mac80211/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MAC80211_DEBUG_H
 #define __MAC80211_DEBUG_H
 #include <net/cfg80211.h>
diff --git a/net/mac80211/debugfs.h b/net/mac80211/debugfs.h
index 60c35afee29d..d2c424787463 100644
--- a/net/mac80211/debugfs.h
+++ b/net/mac80211/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MAC80211_DEBUGFS_H
 #define __MAC80211_DEBUGFS_H
 
diff --git a/net/mac80211/debugfs_key.h b/net/mac80211/debugfs_key.h
index 32adc77e9c77..1cd7b8bff56c 100644
--- a/net/mac80211/debugfs_key.h
+++ b/net/mac80211/debugfs_key.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MAC80211_DEBUGFS_KEY_H
 #define __MAC80211_DEBUGFS_KEY_H
 
diff --git a/net/mac80211/debugfs_netdev.h b/net/mac80211/debugfs_netdev.h
index 9f5501a9a795..a7e9d8d518f9 100644
--- a/net/mac80211/debugfs_netdev.h
+++ b/net/mac80211/debugfs_netdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* routines exported for debugfs handling */
 
 #ifndef __IEEE80211_DEBUGFS_NETDEV_H
diff --git a/net/mac80211/debugfs_sta.h b/net/mac80211/debugfs_sta.h
index 8b608903259f..d2e7c27ad6d1 100644
--- a/net/mac80211/debugfs_sta.h
+++ b/net/mac80211/debugfs_sta.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MAC80211_DEBUGFS_STA_H
 #define __MAC80211_DEBUGFS_STA_H
 
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 09f77e4a8a79..c7f93fd9ca7a 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 * Portions of this file
 * Copyright(c) 2016 Intel Deutschland GmbH
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index a98fc2b5e0dc..938049395f90 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -4,7 +4,7 @@
  * Copyright 2006-2007	Jiri Benc <jbenc@suse.cz>
  * Copyright 2007-2008	Johannes Berg <johannes@sipsolutions.net>
  * Copyright 2013-2014  Intel Mobile Communications GmbH
- * Copyright 2015	Intel Deutschland GmbH
+ * Copyright 2015-2017	Intel Deutschland GmbH
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <linux/export.h>
 #include <net/mac80211.h>
+#include <crypto/algapi.h>
 #include <asm/unaligned.h>
 #include "ieee80211_i.h"
 #include "driver-ops.h"
@@ -609,6 +610,39 @@ void ieee80211_key_free_unused(struct ieee80211_key *key)
 	ieee80211_key_free_common(key);
 }
 
+static bool ieee80211_key_identical(struct ieee80211_sub_if_data *sdata,
+				    struct ieee80211_key *old,
+				    struct ieee80211_key *new)
+{
+	u8 tkip_old[WLAN_KEY_LEN_TKIP], tkip_new[WLAN_KEY_LEN_TKIP];
+	u8 *tk_old, *tk_new;
+
+	if (!old || new->conf.keylen != old->conf.keylen)
+		return false;
+
+	tk_old = old->conf.key;
+	tk_new = new->conf.key;
+
+	/*
+	 * In station mode, don't compare the TX MIC key, as it's never used
+	 * and offloaded rekeying may not care to send it to the host. This
+	 * is the case in iwlwifi, for example.
+	 */
+	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+	    new->conf.cipher == WLAN_CIPHER_SUITE_TKIP &&
+	    new->conf.keylen == WLAN_KEY_LEN_TKIP &&
+	    !(new->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE)) {
+		memcpy(tkip_old, tk_old, WLAN_KEY_LEN_TKIP);
+		memcpy(tkip_new, tk_new, WLAN_KEY_LEN_TKIP);
+		memset(tkip_old + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 0, 8);
+		memset(tkip_new + NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY, 0, 8);
+		tk_old = tkip_old;
+		tk_new = tkip_new;
+	}
+
+	return !crypto_memneq(tk_old, tk_new, new->conf.keylen);
+}
+
 int ieee80211_key_link(struct ieee80211_key *key,
 		       struct ieee80211_sub_if_data *sdata,
 		       struct sta_info *sta)
@@ -620,9 +654,6 @@ int ieee80211_key_link(struct ieee80211_key *key,
 
 	pairwise = key->conf.flags & IEEE80211_KEY_FLAG_PAIRWISE;
 	idx = key->conf.keyidx;
-	key->local = sdata->local;
-	key->sdata = sdata;
-	key->sta = sta;
 
 	mutex_lock(&sdata->local->key_mtx);
 
@@ -633,6 +664,20 @@ int ieee80211_key_link(struct ieee80211_key *key,
 	else
 		old_key = key_mtx_dereference(sdata->local, sdata->keys[idx]);
 
+	/*
+	 * Silently accept key re-installation without really installing the
+	 * new version of the key to avoid nonce reuse or replay issues.
+	 */
+	if (ieee80211_key_identical(sdata, old_key, key)) {
+		ieee80211_key_free_unused(key);
+		ret = 0;
+		goto out;
+	}
+
+	key->local = sdata->local;
+	key->sdata = sdata;
+	key->sta = sta;
+
 	increment_tailroom_need_count(sdata);
 
 	ieee80211_key_replace(sdata, sta, pairwise, old_key, key);
@@ -648,6 +693,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
 		ret = 0;
 	}
 
+ out:
 	mutex_unlock(&sdata->local->key_mtx);
 
 	return ret;
diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c
index a87d195c4a61..38c45e1dafd8 100644
--- a/net/mac80211/pm.c
+++ b/net/mac80211/pm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <net/mac80211.h>
 #include <net/rtnetlink.h>
 
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index 69615016d5bf..214d2ba02877 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2008,7 +2008,7 @@ static void sta_stats_decode_rate(struct ieee80211_local *local, u16 rate,
 
 static int sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
 {
-	u16 rate = ACCESS_ONCE(sta_get_last_rx_stats(sta)->last_rate);
+	u16 rate = READ_ONCE(sta_get_last_rx_stats(sta)->last_rate);
 
 	if (rate == STA_STATS_RATE_INVALID)
 		return -EINVAL;
diff --git a/net/mac80211/trace.c b/net/mac80211/trace.c
index edfe0c170a1c..837857261b66 100644
--- a/net/mac80211/trace.c
+++ b/net/mac80211/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* bug in tracepoint.h, it should include this */
 #include <linux/module.h>
 
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 3d9ac17af407..591ad02e1fa4 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
 * Portions of this file
 * Copyright(c) 2016 Intel Deutschland GmbH
diff --git a/net/mac80211/trace_msg.h b/net/mac80211/trace_msg.h
index 768f7c22a190..366b9e6f043e 100644
--- a/net/mac80211/trace_msg.h
+++ b/net/mac80211/trace_msg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef CONFIG_MAC80211_MESSAGE_TRACING
 
 #if !defined(__MAC80211_MSG_DRIVER_TRACE) || defined(TRACE_HEADER_MULTI_READ)
diff --git a/net/mac802154/cfg.h b/net/mac802154/cfg.h
index e2718f981e82..3bb089685500 100644
--- a/net/mac802154/cfg.h
+++ b/net/mac802154/cfg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* mac802154 configuration hooks for cfg802154
  */
 
diff --git a/net/mac802154/driver-ops.h b/net/mac802154/driver-ops.h
index fd9daf2ecec9..d23f0db98015 100644
--- a/net/mac802154/driver-ops.h
+++ b/net/mac802154/driver-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __MAC802154_DRIVER_OPS
 #define __MAC802154_DRIVER_OPS
 
diff --git a/net/mac802154/trace.c b/net/mac802154/trace.c
index 863e5e6b983d..c36e3d541a42 100644
--- a/net/mac802154/trace.c
+++ b/net/mac802154/trace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/module.h>
 
 #ifndef __CHECKER__
diff --git a/net/mac802154/trace.h b/net/mac802154/trace.h
index 6f30e0c93a16..2c8a43d3607f 100644
--- a/net/mac802154/trace.h
+++ b/net/mac802154/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Based on net/mac80211/trace.h */
 
 #undef TRACE_SYSTEM
diff --git a/net/mpls/internal.h b/net/mpls/internal.h
index cf65aec2e551..768a302879b4 100644
--- a/net/mpls/internal.h
+++ b/net/mpls/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef MPLS_INTERNAL_H
 #define MPLS_INTERNAL_H
 #include <net/mpls.h>
diff --git a/net/ncsi/internal.h b/net/ncsi/internal.h
index af3d636534ef..d30f7bd741d0 100644
--- a/net/ncsi/internal.h
+++ b/net/ncsi/internal.h
@@ -286,6 +286,7 @@ struct ncsi_dev_priv {
 	struct work_struct  work;            /* For channel management     */
 	struct packet_type  ptype;           /* NCSI packet Rx handler     */
 	struct list_head    node;            /* Form NCSI device list      */
+#define NCSI_MAX_VLAN_VIDS	15
 	struct list_head    vlan_vids;       /* List of active VLAN IDs */
 };
 
diff --git a/net/ncsi/ncsi-aen.c b/net/ncsi/ncsi-aen.c
index 6898e7229285..f135938bf781 100644
--- a/net/ncsi/ncsi-aen.c
+++ b/net/ncsi/ncsi-aen.c
@@ -187,7 +187,7 @@ static struct ncsi_aen_handler {
 } ncsi_aen_handlers[] = {
 	{ NCSI_PKT_AEN_LSC,    12, ncsi_aen_handler_lsc    },
 	{ NCSI_PKT_AEN_CR,      4, ncsi_aen_handler_cr     },
-	{ NCSI_PKT_AEN_HNCDSC,  4, ncsi_aen_handler_hncdsc }
+	{ NCSI_PKT_AEN_HNCDSC,  8, ncsi_aen_handler_hncdsc }
 };
 
 int ncsi_aen_handler(struct ncsi_dev_priv *ndp, struct sk_buff *skb)
diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c
index 3fd3c39e6278..28c42b22b748 100644
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -189,6 +189,7 @@ static void ncsi_channel_monitor(unsigned long data)
 	struct ncsi_channel *nc = (struct ncsi_channel *)data;
 	struct ncsi_package *np = nc->package;
 	struct ncsi_dev_priv *ndp = np->ndp;
+	struct ncsi_channel_mode *ncm;
 	struct ncsi_cmd_arg nca;
 	bool enabled, chained;
 	unsigned int monitor_state;
@@ -202,11 +203,15 @@ static void ncsi_channel_monitor(unsigned long data)
 	monitor_state = nc->monitor.state;
 	spin_unlock_irqrestore(&nc->lock, flags);
 
-	if (!enabled || chained)
+	if (!enabled || chained) {
+		ncsi_stop_channel_monitor(nc);
 		return;
+	}
 	if (state != NCSI_CHANNEL_INACTIVE &&
-	    state != NCSI_CHANNEL_ACTIVE)
+	    state != NCSI_CHANNEL_ACTIVE) {
+		ncsi_stop_channel_monitor(nc);
 		return;
+	}
 
 	switch (monitor_state) {
 	case NCSI_CHANNEL_MONITOR_START:
@@ -217,28 +222,28 @@ static void ncsi_channel_monitor(unsigned long data)
 		nca.type = NCSI_PKT_CMD_GLS;
 		nca.req_flags = 0;
 		ret = ncsi_xmit_cmd(&nca);
-		if (ret) {
+		if (ret)
 			netdev_err(ndp->ndev.dev, "Error %d sending GLS\n",
 				   ret);
-			return;
-		}
-
 		break;
 	case NCSI_CHANNEL_MONITOR_WAIT ... NCSI_CHANNEL_MONITOR_WAIT_MAX:
 		break;
 	default:
-		if (!(ndp->flags & NCSI_DEV_HWA) &&
-		    state == NCSI_CHANNEL_ACTIVE) {
+		if (!(ndp->flags & NCSI_DEV_HWA)) {
 			ncsi_report_link(ndp, true);
 			ndp->flags |= NCSI_DEV_RESHUFFLE;
 		}
 
+		ncsi_stop_channel_monitor(nc);
+
+		ncm = &nc->modes[NCSI_MODE_LINK];
 		spin_lock_irqsave(&nc->lock, flags);
 		nc->state = NCSI_CHANNEL_INVISIBLE;
+		ncm->data[2] &= ~0x1;
 		spin_unlock_irqrestore(&nc->lock, flags);
 
 		spin_lock_irqsave(&ndp->lock, flags);
-		nc->state = NCSI_CHANNEL_INACTIVE;
+		nc->state = NCSI_CHANNEL_ACTIVE;
 		list_add_tail_rcu(&nc->link, &ndp->channel_queue);
 		spin_unlock_irqrestore(&ndp->lock, flags);
 		ncsi_process_next_channel(ndp);
@@ -732,6 +737,10 @@ static int set_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
 	if (index < 0) {
 		netdev_err(ndp->ndev.dev,
 			   "Failed to add new VLAN tag, error %d\n", index);
+		if (index == -ENOSPC)
+			netdev_err(ndp->ndev.dev,
+				   "Channel %u already has all VLAN filters set\n",
+				   nc->id);
 		return -1;
 	}
 
@@ -998,12 +1007,15 @@ static bool ncsi_check_hwa(struct ncsi_dev_priv *ndp)
 	struct ncsi_package *np;
 	struct ncsi_channel *nc;
 	unsigned int cap;
+	bool has_channel = false;
 
 	/* The hardware arbitration is disabled if any one channel
 	 * doesn't support explicitly.
 	 */
 	NCSI_FOR_EACH_PACKAGE(ndp, np) {
 		NCSI_FOR_EACH_CHANNEL(np, nc) {
+			has_channel = true;
+
 			cap = nc->caps[NCSI_CAP_GENERIC].cap;
 			if (!(cap & NCSI_CAP_GENERIC_HWA) ||
 			    (cap & NCSI_CAP_GENERIC_HWA_MASK) !=
@@ -1014,8 +1026,13 @@ static bool ncsi_check_hwa(struct ncsi_dev_priv *ndp)
 		}
 	}
 
-	ndp->flags |= NCSI_DEV_HWA;
-	return true;
+	if (has_channel) {
+		ndp->flags |= NCSI_DEV_HWA;
+		return true;
+	}
+
+	ndp->flags &= ~NCSI_DEV_HWA;
+	return false;
 }
 
 static int ncsi_enable_hwa(struct ncsi_dev_priv *ndp)
@@ -1403,7 +1420,6 @@ static int ncsi_kick_channels(struct ncsi_dev_priv *ndp)
 
 int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
 {
-	struct ncsi_channel_filter *ncf;
 	struct ncsi_dev_priv *ndp;
 	unsigned int n_vids = 0;
 	struct vlan_vid *vlan;
@@ -1420,7 +1436,6 @@ int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
 	}
 
 	ndp = TO_NCSI_DEV_PRIV(nd);
-	ncf = ndp->hot_channel->filters[NCSI_FILTER_VLAN];
 
 	/* Add the VLAN id to our internal list */
 	list_for_each_entry_rcu(vlan, &ndp->vlan_vids, list) {
@@ -1431,12 +1446,11 @@ int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
 			return 0;
 		}
 	}
-
-	if (n_vids >= ncf->total) {
-		netdev_info(dev,
-			    "NCSI Channel supports up to %u VLAN tags but %u are already set\n",
-			    ncf->total, n_vids);
-		return -EINVAL;
+	if (n_vids >= NCSI_MAX_VLAN_VIDS) {
+		netdev_warn(dev,
+			    "tried to add vlan id %u but NCSI max already registered (%u)\n",
+			    vid, NCSI_MAX_VLAN_VIDS);
+		return -ENOSPC;
 	}
 
 	vlan = kzalloc(sizeof(*vlan), GFP_KERNEL);
diff --git a/net/ncsi/ncsi-rsp.c b/net/ncsi/ncsi-rsp.c
index 265b9a892d41..927dad4759d1 100644
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -959,7 +959,7 @@ static struct ncsi_rsp_handler {
 	{ NCSI_PKT_RSP_EGMF,    4, ncsi_rsp_handler_egmf    },
 	{ NCSI_PKT_RSP_DGMF,    4, ncsi_rsp_handler_dgmf    },
 	{ NCSI_PKT_RSP_SNFC,    4, ncsi_rsp_handler_snfc    },
-	{ NCSI_PKT_RSP_GVI,    36, ncsi_rsp_handler_gvi     },
+	{ NCSI_PKT_RSP_GVI,    40, ncsi_rsp_handler_gvi     },
 	{ NCSI_PKT_RSP_GC,     32, ncsi_rsp_handler_gc      },
 	{ NCSI_PKT_RSP_GP,     -1, ncsi_rsp_handler_gp      },
 	{ NCSI_PKT_RSP_GCPS,  172, ncsi_rsp_handler_gcps    },
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index d3891c93edd6..f78ed2470831 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 netfilter-objs := core.o nf_log.o nf_queue.o nf_sockopt.o
 
 nf_conntrack-y	:= nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_expect.o nf_conntrack_helper.o nf_conntrack_proto.o nf_conntrack_l3proto_generic.o nf_conntrack_proto_generic.o nf_conntrack_proto_tcp.o nf_conntrack_proto_udp.o nf_conntrack_extend.o nf_conntrack_acct.o nf_conntrack_seqadj.o
diff --git a/net/netfilter/ipset/Makefile b/net/netfilter/ipset/Makefile
index 28ec148df02d..a445a6bf4f11 100644
--- a/net/netfilter/ipset/Makefile
+++ b/net/netfilter/ipset/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the ipset modules
 #
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index e495b5e484b1..cf84f7b37cd9 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1191,14 +1191,17 @@ static int ip_set_swap(struct net *net, struct sock *ctnl, struct sk_buff *skb,
 	      from->family == to->family))
 		return -IPSET_ERR_TYPE_MISMATCH;
 
-	if (from->ref_netlink || to->ref_netlink)
+	write_lock_bh(&ip_set_ref_lock);
+
+	if (from->ref_netlink || to->ref_netlink) {
+		write_unlock_bh(&ip_set_ref_lock);
 		return -EBUSY;
+	}
 
 	strncpy(from_name, from->name, IPSET_MAXNAMELEN);
 	strncpy(from->name, to->name, IPSET_MAXNAMELEN);
 	strncpy(to->name, from_name, IPSET_MAXNAMELEN);
 
-	write_lock_bh(&ip_set_ref_lock);
 	swap(from->ref, to->ref);
 	ip_set(inst, from_id) = to;
 	ip_set(inst, to_id) = from;
@@ -2072,25 +2075,28 @@ static struct pernet_operations ip_set_net_ops = {
 static int __init
 ip_set_init(void)
 {
-	int ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
+	int ret = register_pernet_subsys(&ip_set_net_ops);
+
+	if (ret) {
+		pr_err("ip_set: cannot register pernet_subsys.\n");
+		return ret;
+	}
 
+	ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
 	if (ret != 0) {
 		pr_err("ip_set: cannot register with nfnetlink.\n");
+		unregister_pernet_subsys(&ip_set_net_ops);
 		return ret;
 	}
+
 	ret = nf_register_sockopt(&so_set);
 	if (ret != 0) {
 		pr_err("SO_SET registry failed: %d\n", ret);
 		nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
+		unregister_pernet_subsys(&ip_set_net_ops);
 		return ret;
 	}
-	ret = register_pernet_subsys(&ip_set_net_ops);
-	if (ret) {
-		pr_err("ip_set: cannot register pernet_subsys.\n");
-		nf_unregister_sockopt(&so_set);
-		nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
-		return ret;
-	}
+
 	pr_info("ip_set: protocol %u\n", IPSET_PROTOCOL);
 	return 0;
 }
@@ -2098,9 +2104,10 @@ ip_set_init(void)
 static void __exit
 ip_set_fini(void)
 {
-	unregister_pernet_subsys(&ip_set_net_ops);
 	nf_unregister_sockopt(&so_set);
 	nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
+
+	unregister_pernet_subsys(&ip_set_net_ops);
 	pr_debug("these are the famous last words\n");
 }
 
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index f236c0bc7b3f..51063d9ed0f7 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -1041,12 +1041,24 @@ out:
 static int
 mtype_head(struct ip_set *set, struct sk_buff *skb)
 {
-	const struct htype *h = set->data;
+	struct htype *h = set->data;
 	const struct htable *t;
 	struct nlattr *nested;
 	size_t memsize;
 	u8 htable_bits;
 
+	/* If any members have expired, set->elements will be wrong
+	 * mytype_expire function will update it with the right count.
+	 * we do not hold set->lock here, so grab it first.
+	 * set->elements can still be incorrect in the case of a huge set,
+	 * because elements might time out during the listing.
+	 */
+	if (SET_WITH_TIMEOUT(set)) {
+		spin_lock_bh(&set->lock);
+		mtype_expire(set, h);
+		spin_unlock_bh(&set->lock);
+	}
+
 	rcu_read_lock_bh();
 	t = rcu_dereference_bh_nfnl(h->table);
 	memsize = mtype_ahash_memsize(h, t) + set->ext_size;
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index 20bfbd315f61..613eb212cb48 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -123,13 +123,12 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
 		return ret;
 
 	ip &= ip_set_hostmask(h->netmask);
+	e.ip = htonl(ip);
+	if (e.ip == 0)
+		return -IPSET_ERR_HASH_ELEM;
 
-	if (adt == IPSET_TEST) {
-		e.ip = htonl(ip);
-		if (e.ip == 0)
-			return -IPSET_ERR_HASH_ELEM;
+	if (adt == IPSET_TEST)
 		return adtfn(set, &e, &ext, &ext, flags);
-	}
 
 	ip_to = ip;
 	if (tb[IPSET_ATTR_IP_TO]) {
@@ -148,17 +147,20 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	hosts = h->netmask == 32 ? 1 : 2 << (32 - h->netmask - 1);
 
-	if (retried)
+	if (retried) {
 		ip = ntohl(h->next.ip);
-	for (; !before(ip_to, ip); ip += hosts) {
 		e.ip = htonl(ip);
-		if (e.ip == 0)
-			return -IPSET_ERR_HASH_ELEM;
+	}
+	for (; ip <= ip_to;) {
 		ret = adtfn(set, &e, &ext, &ext, flags);
-
 		if (ret && !ip_set_eexist(ret, flags))
 			return ret;
 
+		ip += hosts;
+		e.ip = htonl(ip);
+		if (e.ip == 0)
+			return 0;
+
 		ret = 0;
 	}
 	return ret;
diff --git a/net/netfilter/ipset/ip_set_hash_ipmark.c b/net/netfilter/ipset/ip_set_hash_ipmark.c
index b64cf14e8352..f3ba8348cf9d 100644
--- a/net/netfilter/ipset/ip_set_hash_ipmark.c
+++ b/net/netfilter/ipset/ip_set_hash_ipmark.c
@@ -149,7 +149,7 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	if (retried)
 		ip = ntohl(h->next.ip);
-	for (; !before(ip_to, ip); ip++) {
+	for (; ip <= ip_to; ip++) {
 		e.ip = htonl(ip);
 		ret = adtfn(set, &e, &ext, &ext, flags);
 
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index f438740e6c6a..ddb8039ec1d2 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -178,7 +178,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	if (retried)
 		ip = ntohl(h->next.ip);
-	for (; !before(ip_to, ip); ip++) {
+	for (; ip <= ip_to; ip++) {
 		p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
 						       : port;
 		for (; p <= port_to; p++) {
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 6215fb898c50..a7f4d7a85420 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -185,7 +185,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	if (retried)
 		ip = ntohl(h->next.ip);
-	for (; !before(ip_to, ip); ip++) {
+	for (; ip <= ip_to; ip++) {
 		p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
 						       : port;
 		for (; p <= port_to; p++) {
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 5ab1b99a53c2..a2f19b9906e9 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -271,7 +271,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	if (retried)
 		ip = ntohl(h->next.ip);
-	for (; !before(ip_to, ip); ip++) {
+	for (; ip <= ip_to; ip++) {
 		e.ip = htonl(ip);
 		p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
 						       : port;
@@ -281,7 +281,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 			      ip == ntohl(h->next.ip) &&
 			      p == ntohs(h->next.port)
 				? ntohl(h->next.ip2) : ip2_from;
-			while (!after(ip2, ip2_to)) {
+			while (ip2 <= ip2_to) {
 				e.ip2 = htonl(ip2);
 				ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
 								&cidr);
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index 5d9e895452e7..1c67a1761e45 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -193,7 +193,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
 	}
 	if (retried)
 		ip = ntohl(h->next.ip);
-	while (!after(ip, ip_to)) {
+	while (ip <= ip_to) {
 		e.ip = htonl(ip);
 		last = ip_set_range_to_cidr(ip, ip_to, &e.cidr);
 		ret = adtfn(set, &e, &ext, &ext, flags);
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 44cf11939c91..d417074f1c1a 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -255,7 +255,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	if (retried)
 		ip = ntohl(h->next.ip);
-	while (!after(ip, ip_to)) {
+	while (ip <= ip_to) {
 		e.ip = htonl(ip);
 		last = ip_set_range_to_cidr(ip, ip_to, &e.cidr);
 		ret = adtfn(set, &e, &ext, &ext, flags);
diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c
index db614e13b193..7f9ae2e9645b 100644
--- a/net/netfilter/ipset/ip_set_hash_netnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -250,13 +250,13 @@ hash_netnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 	if (retried)
 		ip = ntohl(h->next.ip[0]);
 
-	while (!after(ip, ip_to)) {
+	while (ip <= ip_to) {
 		e.ip[0] = htonl(ip);
 		last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
 		ip2 = (retried &&
 		       ip == ntohl(h->next.ip[0])) ? ntohl(h->next.ip[1])
 						   : ip2_from;
-		while (!after(ip2, ip2_to)) {
+		while (ip2 <= ip2_to) {
 			e.ip[1] = htonl(ip2);
 			last2 = ip_set_range_to_cidr(ip2, ip2_to, &e.cidr[1]);
 			ret = adtfn(set, &e, &ext, &ext, flags);
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index 54b64b6cd0cd..e6ef382febe4 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -241,7 +241,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
 
 	if (retried)
 		ip = ntohl(h->next.ip);
-	while (!after(ip, ip_to)) {
+	while (ip <= ip_to) {
 		e.ip = htonl(ip);
 		last = ip_set_range_to_cidr(ip, ip_to, &cidr);
 		e.cidr = cidr - 1;
diff --git a/net/netfilter/ipset/ip_set_hash_netportnet.c b/net/netfilter/ipset/ip_set_hash_netportnet.c
index aff846960ac4..8602f2595a1a 100644
--- a/net/netfilter/ipset/ip_set_hash_netportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netportnet.c
@@ -291,7 +291,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 	if (retried)
 		ip = ntohl(h->next.ip[0]);
 
-	while (!after(ip, ip_to)) {
+	while (ip <= ip_to) {
 		e.ip[0] = htonl(ip);
 		ip_last = ip_set_range_to_cidr(ip, ip_to, &e.cidr[0]);
 		p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
@@ -301,7 +301,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 			ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
 			       p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
 							 : ip2_from;
-			while (!after(ip2, ip2_to)) {
+			while (ip2 <= ip2_to) {
 				e.ip[1] = htonl(ip2);
 				ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
 								&e.cidr[1]);
diff --git a/net/netfilter/ipvs/Makefile b/net/netfilter/ipvs/Makefile
index 67f3f4389602..c552993fa4b9 100644
--- a/net/netfilter/ipvs/Makefile
+++ b/net/netfilter/ipvs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the IPVS modules on top of IPv4.
 #
diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c
index 3d2ac71a83ec..3a43b3470331 100644
--- a/net/netfilter/ipvs/ip_vs_conn.c
+++ b/net/netfilter/ipvs/ip_vs_conn.c
@@ -104,7 +104,7 @@ static inline void ct_write_unlock_bh(unsigned int key)
 	spin_unlock_bh(&__ip_vs_conntbl_lock_array[key&CT_LOCKARRAY_MASK].l);
 }
 
-static void ip_vs_conn_expire(unsigned long data);
+static void ip_vs_conn_expire(struct timer_list *t);
 
 /*
  *	Returns hash value for IPVS connection entry
@@ -457,7 +457,7 @@ EXPORT_SYMBOL_GPL(ip_vs_conn_out_get_proto);
 static void __ip_vs_conn_put_notimer(struct ip_vs_conn *cp)
 {
 	__ip_vs_conn_put(cp);
-	ip_vs_conn_expire((unsigned long)cp);
+	ip_vs_conn_expire(&cp->timer);
 }
 
 /*
@@ -817,9 +817,9 @@ static void ip_vs_conn_rcu_free(struct rcu_head *head)
 	kmem_cache_free(ip_vs_conn_cachep, cp);
 }
 
-static void ip_vs_conn_expire(unsigned long data)
+static void ip_vs_conn_expire(struct timer_list *t)
 {
-	struct ip_vs_conn *cp = (struct ip_vs_conn *)data;
+	struct ip_vs_conn *cp = from_timer(cp, t, timer);
 	struct netns_ipvs *ipvs = cp->ipvs;
 
 	/*
@@ -909,7 +909,7 @@ ip_vs_conn_new(const struct ip_vs_conn_param *p, int dest_af,
 	}
 
 	INIT_HLIST_NODE(&cp->c_list);
-	setup_timer(&cp->timer, ip_vs_conn_expire, (unsigned long)cp);
+	timer_setup(&cp->timer, ip_vs_conn_expire, 0);
 	cp->ipvs	   = ipvs;
 	cp->af		   = p->af;
 	cp->daf		   = dest_af;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 4f940d7eb2f7..b47e266c6eca 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -1146,9 +1146,9 @@ ip_vs_del_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest)
 	return 0;
 }
 
-static void ip_vs_dest_trash_expire(unsigned long data)
+static void ip_vs_dest_trash_expire(struct timer_list *t)
 {
-	struct netns_ipvs *ipvs = (struct netns_ipvs *)data;
+	struct netns_ipvs *ipvs = from_timer(ipvs, t, dest_trash_timer);
 	struct ip_vs_dest *dest, *next;
 	unsigned long now = jiffies;
 
@@ -4019,8 +4019,7 @@ int __net_init ip_vs_control_net_init(struct netns_ipvs *ipvs)
 
 	INIT_LIST_HEAD(&ipvs->dest_trash);
 	spin_lock_init(&ipvs->dest_trash_lock);
-	setup_timer(&ipvs->dest_trash_timer, ip_vs_dest_trash_expire,
-		    (unsigned long) ipvs);
+	timer_setup(&ipvs->dest_trash_timer, ip_vs_dest_trash_expire, 0);
 	atomic_set(&ipvs->ftpsvc_counter, 0);
 	atomic_set(&ipvs->nullsvc_counter, 0);
 	atomic_set(&ipvs->conn_out_counter, 0);
diff --git a/net/netfilter/ipvs/ip_vs_est.c b/net/netfilter/ipvs/ip_vs_est.c
index 457c6c193e13..489055091a9b 100644
--- a/net/netfilter/ipvs/ip_vs_est.c
+++ b/net/netfilter/ipvs/ip_vs_est.c
@@ -97,12 +97,12 @@ static void ip_vs_read_cpu_stats(struct ip_vs_kstats *sum,
 }
 
 
-static void estimation_timer(unsigned long arg)
+static void estimation_timer(struct timer_list *t)
 {
 	struct ip_vs_estimator *e;
 	struct ip_vs_stats *s;
 	u64 rate;
-	struct netns_ipvs *ipvs = (struct netns_ipvs *)arg;
+	struct netns_ipvs *ipvs = from_timer(ipvs, t, est_timer);
 
 	spin_lock(&ipvs->est_lock);
 	list_for_each_entry(e, &ipvs->est_list, list) {
@@ -192,7 +192,7 @@ int __net_init ip_vs_estimator_net_init(struct netns_ipvs *ipvs)
 {
 	INIT_LIST_HEAD(&ipvs->est_list);
 	spin_lock_init(&ipvs->est_lock);
-	setup_timer(&ipvs->est_timer, estimation_timer, (unsigned long)ipvs);
+	timer_setup(&ipvs->est_timer, estimation_timer, 0);
 	mod_timer(&ipvs->est_timer, jiffies + 2 * HZ);
 	return 0;
 }
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index b6aa4a970c6e..d625179de485 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -106,6 +106,7 @@ struct ip_vs_lblc_table {
 	struct rcu_head		rcu_head;
 	struct hlist_head	bucket[IP_VS_LBLC_TAB_SIZE];  /* hash bucket */
 	struct timer_list       periodic_timer; /* collect stale entries */
+	struct ip_vs_service	*svc;		/* pointer back to service */
 	atomic_t                entries;        /* number of entries */
 	int                     max_size;       /* maximum size of entries */
 	int                     rover;          /* rover for expire check */
@@ -294,10 +295,10 @@ static inline void ip_vs_lblc_full_check(struct ip_vs_service *svc)
  *             of the table.
  *      The full expiration check is for this purpose now.
  */
-static void ip_vs_lblc_check_expire(unsigned long data)
+static void ip_vs_lblc_check_expire(struct timer_list *t)
 {
-	struct ip_vs_service *svc = (struct ip_vs_service *) data;
-	struct ip_vs_lblc_table *tbl = svc->sched_data;
+	struct ip_vs_lblc_table *tbl = from_timer(tbl, t, periodic_timer);
+	struct ip_vs_service *svc = tbl->svc;
 	unsigned long now = jiffies;
 	int goal;
 	int i, j;
@@ -369,12 +370,12 @@ static int ip_vs_lblc_init_svc(struct ip_vs_service *svc)
 	tbl->rover = 0;
 	tbl->counter = 1;
 	tbl->dead = 0;
+	tbl->svc = svc;
 
 	/*
 	 *    Hook periodic timer for garbage collection
 	 */
-	setup_timer(&tbl->periodic_timer, ip_vs_lblc_check_expire,
-			(unsigned long)svc);
+	timer_setup(&tbl->periodic_timer, ip_vs_lblc_check_expire, 0);
 	mod_timer(&tbl->periodic_timer, jiffies + CHECK_EXPIRE_INTERVAL);
 
 	return 0;
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index c13ff575f9f7..84c57b62a588 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -278,6 +278,7 @@ struct ip_vs_lblcr_table {
 	atomic_t                entries;        /* number of entries */
 	int                     max_size;       /* maximum size of entries */
 	struct timer_list       periodic_timer; /* collect stale entries */
+	struct ip_vs_service	*svc;		/* pointer back to service */
 	int                     rover;          /* rover for expire check */
 	int                     counter;        /* counter for no expire */
 	bool			dead;
@@ -458,10 +459,10 @@ static inline void ip_vs_lblcr_full_check(struct ip_vs_service *svc)
  *             of the table.
  *      The full expiration check is for this purpose now.
  */
-static void ip_vs_lblcr_check_expire(unsigned long data)
+static void ip_vs_lblcr_check_expire(struct timer_list *t)
 {
-	struct ip_vs_service *svc = (struct ip_vs_service *) data;
-	struct ip_vs_lblcr_table *tbl = svc->sched_data;
+	struct ip_vs_lblcr_table *tbl = from_timer(tbl, t, periodic_timer);
+	struct ip_vs_service *svc = tbl->svc;
 	unsigned long now = jiffies;
 	int goal;
 	int i, j;
@@ -532,12 +533,12 @@ static int ip_vs_lblcr_init_svc(struct ip_vs_service *svc)
 	tbl->rover = 0;
 	tbl->counter = 1;
 	tbl->dead = 0;
+	tbl->svc = svc;
 
 	/*
 	 *    Hook periodic timer for garbage collection
 	 */
-	setup_timer(&tbl->periodic_timer, ip_vs_lblcr_check_expire,
-			(unsigned long)svc);
+	timer_setup(&tbl->periodic_timer, ip_vs_lblcr_check_expire, 0);
 	mod_timer(&tbl->periodic_timer, jiffies + CHECK_EXPIRE_INTERVAL);
 
 	return 0;
diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 57c8ee66491e..eff7569824e5 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/ip.h>
 #include <linux/sctp.h>
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index 0e5b64a75da0..9ee71cb276d7 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * IPVS         An implementation of the IP virtual server support for the
  *              LINUX operating system.  IPVS is now implemented as a module
@@ -457,7 +458,7 @@ static inline bool in_persistence(struct ip_vs_conn *cp)
 static int ip_vs_sync_conn_needed(struct netns_ipvs *ipvs,
 				  struct ip_vs_conn *cp, int pkts)
 {
-	unsigned long orig = ACCESS_ONCE(cp->sync_endtime);
+	unsigned long orig = READ_ONCE(cp->sync_endtime);
 	unsigned long now = jiffies;
 	unsigned long n = (now + cp->timeout) & ~3UL;
 	unsigned int sync_refresh_period;
diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c
index 90d396814798..4527921b1c3a 100644
--- a/net/netfilter/ipvs/ip_vs_xmit.c
+++ b/net/netfilter/ipvs/ip_vs_xmit.c
@@ -921,6 +921,7 @@ ip_vs_prepare_tunneled_skb(struct sk_buff *skb, int skb_af,
 {
 	struct sk_buff *new_skb = NULL;
 	struct iphdr *old_iph = NULL;
+	__u8 old_dsfield;
 #ifdef CONFIG_IP_VS_IPV6
 	struct ipv6hdr *old_ipv6h = NULL;
 #endif
@@ -945,7 +946,7 @@ ip_vs_prepare_tunneled_skb(struct sk_buff *skb, int skb_af,
 			*payload_len =
 				ntohs(old_ipv6h->payload_len) +
 				sizeof(*old_ipv6h);
-		*dsfield = ipv6_get_dsfield(old_ipv6h);
+		old_dsfield = ipv6_get_dsfield(old_ipv6h);
 		*ttl = old_ipv6h->hop_limit;
 		if (df)
 			*df = 0;
@@ -960,12 +961,15 @@ ip_vs_prepare_tunneled_skb(struct sk_buff *skb, int skb_af,
 
 		/* fix old IP header checksum */
 		ip_send_check(old_iph);
-		*dsfield = ipv4_get_dsfield(old_iph);
+		old_dsfield = ipv4_get_dsfield(old_iph);
 		*ttl = old_iph->ttl;
 		if (payload_len)
 			*payload_len = ntohs(old_iph->tot_len);
 	}
 
+	/* Implement full-functionality option for ECN encapsulation */
+	*dsfield = INET_ECN_encapsulate(old_dsfield, old_dsfield);
+
 	return skb;
 error:
 	kfree_skb(skb);
diff --git a/net/netfilter/nf_internals.h b/net/netfilter/nf_internals.h
index 49f87ec093a3..44284cd2528d 100644
--- a/net/netfilter/nf_internals.h
+++ b/net/netfilter/nf_internals.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _NF_INTERNALS_H
 #define _NF_INTERNALS_H
 
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index f393a7086025..af8345fc4fbd 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -429,7 +429,7 @@ nf_nat_setup_info(struct nf_conn *ct,
 
 		srchash = hash_by_src(net,
 				      &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-		lock = &nf_nat_locks[srchash % ARRAY_SIZE(nf_nat_locks)];
+		lock = &nf_nat_locks[srchash % CONNTRACK_LOCKS];
 		spin_lock_bh(lock);
 		hlist_add_head_rcu(&ct->nat_bysource,
 				   &nf_nat_bysource[srchash]);
@@ -532,9 +532,9 @@ static void __nf_nat_cleanup_conntrack(struct nf_conn *ct)
 	unsigned int h;
 
 	h = hash_by_src(nf_ct_net(ct), &ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
-	spin_lock_bh(&nf_nat_locks[h % ARRAY_SIZE(nf_nat_locks)]);
+	spin_lock_bh(&nf_nat_locks[h % CONNTRACK_LOCKS]);
 	hlist_del_rcu(&ct->nat_bysource);
-	spin_unlock_bh(&nf_nat_locks[h % ARRAY_SIZE(nf_nat_locks)]);
+	spin_unlock_bh(&nf_nat_locks[h % CONNTRACK_LOCKS]);
 }
 
 static int nf_nat_proto_clean(struct nf_conn *ct, void *data)
@@ -807,8 +807,8 @@ static int __init nf_nat_init(void)
 
 	/* Leave them the same for the moment. */
 	nf_nat_htable_size = nf_conntrack_htable_size;
-	if (nf_nat_htable_size < ARRAY_SIZE(nf_nat_locks))
-		nf_nat_htable_size = ARRAY_SIZE(nf_nat_locks);
+	if (nf_nat_htable_size < CONNTRACK_LOCKS)
+		nf_nat_htable_size = CONNTRACK_LOCKS;
 
 	nf_nat_bysource = nf_ct_alloc_hashtable(&nf_nat_htable_size, 0);
 	if (!nf_nat_bysource)
@@ -821,7 +821,7 @@ static int __init nf_nat_init(void)
 		return ret;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(nf_nat_locks); i++)
+	for (i = 0; i < CONNTRACK_LOCKS; i++)
 		spin_lock_init(&nf_nat_locks[i]);
 
 	nf_ct_helper_expectfn_register(&follow_master_nat);
diff --git a/net/netfilter/nf_sockopt.c b/net/netfilter/nf_sockopt.c
index d2a9e6b5d01f..46cb3786e0ec 100644
--- a/net/netfilter/nf_sockopt.c
+++ b/net/netfilter/nf_sockopt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 929927171426..64e1ee091225 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1048,7 +1048,7 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, struct net *net,
 		if (nla_put_string(skb, NFTA_CHAIN_TYPE, basechain->type->name))
 			goto nla_put_failure;
 
-		if (nft_dump_stats(skb, nft_base_chain(chain)->stats))
+		if (basechain->stats && nft_dump_stats(skb, basechain->stats))
 			goto nla_put_failure;
 	}
 
@@ -1487,8 +1487,8 @@ static int nf_tables_updchain(struct nft_ctx *ctx, u8 genmask, u8 policy,
 
 		chain2 = nf_tables_chain_lookup(table, nla[NFTA_CHAIN_NAME],
 						genmask);
-		if (IS_ERR(chain2))
-			return PTR_ERR(chain2);
+		if (!IS_ERR(chain2))
+			return -EEXIST;
 	}
 
 	if (nla[NFTA_CHAIN_COUNTERS]) {
@@ -2741,8 +2741,10 @@ cont:
 	list_for_each_entry(i, &ctx->table->sets, list) {
 		if (!nft_is_active_next(ctx->net, i))
 			continue;
-		if (!strcmp(set->name, i->name))
+		if (!strcmp(set->name, i->name)) {
+			kfree(set->name);
 			return -ENFILE;
+		}
 	}
 	return 0;
 }
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index c9796629858f..a16356cacec3 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -401,7 +401,7 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
 
 	outdev = entry->state.out;
 
-	switch ((enum nfqnl_config_mode)ACCESS_ONCE(queue->copy_mode)) {
+	switch ((enum nfqnl_config_mode)READ_ONCE(queue->copy_mode)) {
 	case NFQNL_COPY_META:
 	case NFQNL_COPY_NONE:
 		break;
@@ -412,7 +412,7 @@ nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
 		    skb_checksum_help(entskb))
 			return NULL;
 
-		data_len = ACCESS_ONCE(queue->copy_range);
+		data_len = READ_ONCE(queue->copy_range);
 		if (data_len > entskb->len)
 			data_len = entskb->len;
 
diff --git a/net/netfilter/nft_set_hash.c b/net/netfilter/nft_set_hash.c
index 0fa01d772c5e..9c0d5a7ce5f9 100644
--- a/net/netfilter/nft_set_hash.c
+++ b/net/netfilter/nft_set_hash.c
@@ -643,7 +643,6 @@ nft_hash_select_ops(const struct nft_ctx *ctx, const struct nft_set_desc *desc,
 {
 	if (desc->size) {
 		switch (desc->klen) {
-		case 2:
 		case 4:
 			return &nft_hash_fast_ops;
 		default:
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index c83a3b5e1c6c..d8571f414208 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -892,7 +892,7 @@ void *xt_copy_counters_from_user(const void __user *user, unsigned int len,
 		if (copy_from_user(&compat_tmp, user, sizeof(compat_tmp)) != 0)
 			return ERR_PTR(-EFAULT);
 
-		strlcpy(info->name, compat_tmp.name, sizeof(info->name));
+		memcpy(info->name, compat_tmp.name, sizeof(info->name) - 1);
 		info->num_counters = compat_tmp.num_counters;
 		user += sizeof(compat_tmp);
 	} else
@@ -905,9 +905,9 @@ void *xt_copy_counters_from_user(const void __user *user, unsigned int len,
 		if (copy_from_user(info, user, sizeof(*info)) != 0)
 			return ERR_PTR(-EFAULT);
 
-		info->name[sizeof(info->name) - 1] = '\0';
 		user += sizeof(*info);
 	}
+	info->name[sizeof(info->name) - 1] = '\0';
 
 	size = sizeof(struct xt_counters);
 	size *= info->num_counters;
diff --git a/net/netfilter/xt_bpf.c b/net/netfilter/xt_bpf.c
index 38986a95216c..29123934887b 100644
--- a/net/netfilter/xt_bpf.c
+++ b/net/netfilter/xt_bpf.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/syscalls.h>
 #include <linux/skbuff.h>
 #include <linux/filter.h>
 #include <linux/bpf.h>
@@ -49,6 +50,22 @@ static int __bpf_mt_check_fd(int fd, struct bpf_prog **ret)
 	return 0;
 }
 
+static int __bpf_mt_check_path(const char *path, struct bpf_prog **ret)
+{
+	mm_segment_t oldfs = get_fs();
+	int retval, fd;
+
+	set_fs(KERNEL_DS);
+	fd = bpf_obj_get_user(path);
+	set_fs(oldfs);
+	if (fd < 0)
+		return fd;
+
+	retval = __bpf_mt_check_fd(fd, ret);
+	sys_close(fd);
+	return retval;
+}
+
 static int bpf_mt_check(const struct xt_mtchk_param *par)
 {
 	struct xt_bpf_info *info = par->matchinfo;
@@ -66,9 +83,10 @@ static int bpf_mt_check_v1(const struct xt_mtchk_param *par)
 		return __bpf_mt_check_bytecode(info->bpf_program,
 					       info->bpf_program_num_elem,
 					       &info->filter);
-	else if (info->mode == XT_BPF_MODE_FD_PINNED ||
-		 info->mode == XT_BPF_MODE_FD_ELF)
+	else if (info->mode == XT_BPF_MODE_FD_ELF)
 		return __bpf_mt_check_fd(info->fd, &info->filter);
+	else if (info->mode == XT_BPF_MODE_PATH_PINNED)
+		return __bpf_mt_check_path(info->path, &info->filter);
 	else
 		return -EINVAL;
 }
diff --git a/net/netfilter/xt_repldata.h b/net/netfilter/xt_repldata.h
index 8fd324116e6f..68ccbe50bb1e 100644
--- a/net/netfilter/xt_repldata.h
+++ b/net/netfilter/xt_repldata.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Today's hack: quantum tunneling in structs
  *
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index e75ef39669c5..575d2153e3b8 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -76,7 +76,7 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 			transparent = nf_sk_is_transparent(sk);
 
 		if (info->flags & XT_SOCKET_RESTORESKMARK && !wildcard &&
-		    transparent)
+		    transparent && sk_fullsock(sk))
 			pskb->mark = sk->sk_mark;
 
 		if (sk != skb->sk)
@@ -133,7 +133,7 @@ socket_mt6_v1_v2_v3(const struct sk_buff *skb, struct xt_action_param *par)
 			transparent = nf_sk_is_transparent(sk);
 
 		if (info->flags & XT_SOCKET_RESTORESKMARK && !wildcard &&
-		    transparent)
+		    transparent && sk_fullsock(sk))
 			pskb->mark = sk->sk_mark;
 
 		if (sk != skb->sk)
diff --git a/net/netlabel/Makefile b/net/netlabel/Makefile
index d341ede0dca5..5a46381a64e7 100644
--- a/net/netlabel/Makefile
+++ b/net/netlabel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the NetLabel subsystem.
 #
diff --git a/net/netlabel/netlabel_calipso.c b/net/netlabel/netlabel_calipso.c
index d177dd066504..4d748975117d 100644
--- a/net/netlabel/netlabel_calipso.c
+++ b/net/netlabel/netlabel_calipso.c
@@ -393,7 +393,7 @@ EXPORT_SYMBOL(netlbl_calipso_ops_register);
 
 static const struct netlbl_calipso_ops *netlbl_calipso_ops_get(void)
 {
-	return ACCESS_ONCE(calipso_ops);
+	return READ_ONCE(calipso_ops);
 }
 
 /**
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 327807731b44..b93148e8e9fb 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2266,14 +2266,18 @@ int __netlink_dump_start(struct sock *ssk, struct sk_buff *skb,
 	cb->min_dump_alloc = control->min_dump_alloc;
 	cb->skb = skb;
 
+	if (cb->start) {
+		ret = cb->start(cb);
+		if (ret)
+			goto error_unlock;
+	}
+
 	nlk->cb_running = true;
 
 	mutex_unlock(nlk->cb_mutex);
 
-	if (cb->start)
-		cb->start(cb);
-
 	ret = netlink_dump(sk);
+
 	sock_put(sk);
 
 	if (ret)
@@ -2303,6 +2307,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
 	size_t tlvlen = 0;
 	struct netlink_sock *nlk = nlk_sk(NETLINK_CB(in_skb).sk);
 	unsigned int flags = 0;
+	bool nlk_has_extack = nlk->flags & NETLINK_F_EXT_ACK;
 
 	/* Error messages get the original request appened, unless the user
 	 * requests to cap the error message, and get extra error data if
@@ -2313,7 +2318,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
 			payload += nlmsg_len(nlh);
 		else
 			flags |= NLM_F_CAPPED;
-		if (nlk->flags & NETLINK_F_EXT_ACK && extack) {
+		if (nlk_has_extack && extack) {
 			if (extack->_msg)
 				tlvlen += nla_total_size(strlen(extack->_msg) + 1);
 			if (extack->bad_attr)
@@ -2322,8 +2327,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
 	} else {
 		flags |= NLM_F_CAPPED;
 
-		if (nlk->flags & NETLINK_F_EXT_ACK &&
-		    extack && extack->cookie_len)
+		if (nlk_has_extack && extack && extack->cookie_len)
 			tlvlen += nla_total_size(extack->cookie_len);
 	}
 
@@ -2351,7 +2355,7 @@ void netlink_ack(struct sk_buff *in_skb, struct nlmsghdr *nlh, int err,
 	errmsg->error = err;
 	memcpy(&errmsg->msg, nlh, payload > sizeof(*errmsg) ? nlh->nlmsg_len : sizeof(*nlh));
 
-	if (nlk->flags & NETLINK_F_EXT_ACK && extack) {
+	if (nlk_has_extack && extack) {
 		if (err) {
 			if (extack->_msg)
 				WARN_ON(nla_put_string(skb, NLMSGERR_ATTR_MSG,
diff --git a/net/netlink/af_netlink.h b/net/netlink/af_netlink.h
index 3490f2430532..028188597eaa 100644
--- a/net/netlink/af_netlink.h
+++ b/net/netlink/af_netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _AF_NETLINK_H
 #define _AF_NETLINK_H
 
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 10f8b4cff40a..d444daf1ac04 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * NETLINK      Generic Netlink Family
  *
diff --git a/net/netrom/nr_loopback.c b/net/netrom/nr_loopback.c
index 94d4e922af53..989ae647825e 100644
--- a/net/netrom/nr_loopback.c
+++ b/net/netrom/nr_loopback.c
@@ -18,7 +18,7 @@
 static void nr_loopback_timer(unsigned long);
 
 static struct sk_buff_head loopback_queue;
-static DEFINE_TIMER(loopback_timer, nr_loopback_timer, 0, 0);
+static DEFINE_TIMER(loopback_timer, nr_loopback_timer);
 
 void __init nr_loopback_init(void)
 {
diff --git a/net/nfc/Makefile b/net/nfc/Makefile
index 2555ff8e7219..2ffc69b473fc 100644
--- a/net/nfc/Makefile
+++ b/net/nfc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux NFC subsystem.
 #
diff --git a/net/nfc/nci/Makefile b/net/nfc/nci/Makefile
index 0ca31d9bf741..c3362c499281 100644
--- a/net/nfc/nci/Makefile
+++ b/net/nfc/nci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux NFC NCI layer.
 #
diff --git a/net/openvswitch/Makefile b/net/openvswitch/Makefile
index 60f809085b92..299f4476cf44 100644
--- a/net/openvswitch/Makefile
+++ b/net/openvswitch/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Open vSwitch.
 #
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 76cf273a56c7..c3aec6227c91 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1112,7 +1112,8 @@ static int ovs_nla_init_match_and_action(struct net *net,
 		if (!a[OVS_FLOW_ATTR_KEY]) {
 			OVS_NLERR(log,
 				  "Flow key attribute not present in set flow.");
-			return -EINVAL;
+			error = -EINVAL;
+			goto error;
 		}
 
 		*acts = get_flow_actions(net, a[OVS_FLOW_ATTR_ACTIONS], key,
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index c26172995511..2986941164b1 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -1684,10 +1684,6 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
 
 	mutex_lock(&fanout_mutex);
 
-	err = -EINVAL;
-	if (!po->running)
-		goto out;
-
 	err = -EALREADY;
 	if (po->fanout)
 		goto out;
@@ -1749,7 +1745,10 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
 		list_add(&match->list, &fanout_list);
 	}
 	err = -EINVAL;
-	if (match->type == type &&
+
+	spin_lock(&po->bind_lock);
+	if (po->running &&
+	    match->type == type &&
 	    match->prot_hook.type == po->prot_hook.type &&
 	    match->prot_hook.dev == po->prot_hook.dev) {
 		err = -ENOSPC;
@@ -1761,9 +1760,16 @@ static int fanout_add(struct sock *sk, u16 id, u16 type_flags)
 			err = 0;
 		}
 	}
+	spin_unlock(&po->bind_lock);
+
+	if (err && !refcount_read(&match->sk_ref)) {
+		list_del(&match->list);
+		kfree(match);
+	}
+
 out:
 	if (err && rollover) {
-		kfree(rollover);
+		kfree_rcu(rollover, rcu);
 		po->rollover = NULL;
 	}
 	mutex_unlock(&fanout_mutex);
@@ -1790,8 +1796,10 @@ static struct packet_fanout *fanout_release(struct sock *sk)
 		else
 			f = NULL;
 
-		if (po->rollover)
+		if (po->rollover) {
 			kfree_rcu(po->rollover, rcu);
+			po->rollover = NULL;
+		}
 	}
 	mutex_unlock(&fanout_mutex);
 
@@ -2834,6 +2842,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	struct virtio_net_hdr vnet_hdr = { 0 };
 	int offset = 0;
 	struct packet_sock *po = pkt_sk(sk);
+	bool has_vnet_hdr = false;
 	int hlen, tlen, linear;
 	int extra_len = 0;
 
@@ -2877,6 +2886,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 		err = packet_snd_vnet_parse(msg, &len, &vnet_hdr);
 		if (err)
 			goto out_unlock;
+		has_vnet_hdr = true;
 	}
 
 	if (unlikely(sock_flag(sk, SOCK_NOFCS))) {
@@ -2935,7 +2945,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len)
 	skb->priority = sk->sk_priority;
 	skb->mark = sockc.mark;
 
-	if (po->has_vnet_hdr) {
+	if (has_vnet_hdr) {
 		err = virtio_net_hdr_to_skb(skb, &vnet_hdr, vio_le());
 		if (err)
 			goto out_free;
@@ -3063,13 +3073,15 @@ static int packet_do_bind(struct sock *sk, const char *name, int ifindex,
 	int ret = 0;
 	bool unlisted = false;
 
-	if (po->fanout)
-		return -EINVAL;
-
 	lock_sock(sk);
 	spin_lock(&po->bind_lock);
 	rcu_read_lock();
 
+	if (po->fanout) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
 	if (name) {
 		dev = dev_get_by_name_rcu(sock_net(sk), name);
 		if (!dev) {
@@ -3841,6 +3853,7 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 	void *data = &val;
 	union tpacket_stats_u st;
 	struct tpacket_rollover_stats rstats;
+	struct packet_rollover *rollover;
 
 	if (level != SOL_PACKET)
 		return -ENOPROTOOPT;
@@ -3919,13 +3932,18 @@ static int packet_getsockopt(struct socket *sock, int level, int optname,
 		       0);
 		break;
 	case PACKET_ROLLOVER_STATS:
-		if (!po->rollover)
+		rcu_read_lock();
+		rollover = rcu_dereference(po->rollover);
+		if (rollover) {
+			rstats.tp_all = atomic_long_read(&rollover->num);
+			rstats.tp_huge = atomic_long_read(&rollover->num_huge);
+			rstats.tp_failed = atomic_long_read(&rollover->num_failed);
+			data = &rstats;
+			lv = sizeof(rstats);
+		}
+		rcu_read_unlock();
+		if (!rollover)
 			return -EINVAL;
-		rstats.tp_all = atomic_long_read(&po->rollover->num);
-		rstats.tp_huge = atomic_long_read(&po->rollover->num_huge);
-		rstats.tp_failed = atomic_long_read(&po->rollover->num_failed);
-		data = &rstats;
-		lv = sizeof(rstats);
 		break;
 	case PACKET_TX_HAS_OFF:
 		val = po->tp_tx_has_off;
diff --git a/net/packet/internal.h b/net/packet/internal.h
index 94d1d405a116..562fbc155006 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PACKET_INTERNAL_H__
 #define __PACKET_INTERNAL_H__
 
diff --git a/net/phonet/Makefile b/net/phonet/Makefile
index e10b1b182ce3..444f875932b9 100644
--- a/net/phonet/Makefile
+++ b/net/phonet/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_PHONET) += phonet.o pn_pep.o
 
 phonet-y := \
diff --git a/net/psample/psample.c b/net/psample/psample.c
index 3a6ad0f438dc..64f95624f219 100644
--- a/net/psample/psample.c
+++ b/net/psample/psample.c
@@ -296,6 +296,6 @@ static void __exit psample_module_exit(void)
 module_init(psample_module_init);
 module_exit(psample_module_exit);
 
-MODULE_AUTHOR("Yotam Gigi <yotamg@mellanox.com>");
+MODULE_AUTHOR("Yotam Gigi <yotam.gi@gmail.com>");
 MODULE_DESCRIPTION("netlink channel for packet sampling");
 MODULE_LICENSE("GPL v2");
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c
index c2f5c13550c0..78418f38464a 100644
--- a/net/qrtr/qrtr.c
+++ b/net/qrtr/qrtr.c
@@ -1085,7 +1085,7 @@ static int __init qrtr_proto_init(void)
 
 	return 0;
 }
-module_init(qrtr_proto_init);
+postcore_initcall(qrtr_proto_init);
 
 static void __exit qrtr_proto_fini(void)
 {
diff --git a/net/qrtr/qrtr.h b/net/qrtr/qrtr.h
index 2b848718f8fe..b81e6953c04b 100644
--- a/net/qrtr/qrtr.h
+++ b/net/qrtr/qrtr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __QRTR_H_
 #define __QRTR_H_
 
diff --git a/net/rds/Makefile b/net/rds/Makefile
index 56c7d27eefee..b5d568bd479c 100644
--- a/net/rds/Makefile
+++ b/net/rds/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_RDS) += rds.o
 rds-y :=	af_rds.o bind.o cong.o connection.o info.o message.o   \
 			recv.o send.o stats.o sysctl.o threads.o transport.o \
diff --git a/net/rds/ib.h b/net/rds/ib.h
index bf4822407567..86a8578d95b8 100644
--- a/net/rds/ib.h
+++ b/net/rds/ib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDS_IB_H
 #define _RDS_IB_H
 
diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index 9722bf839d9d..b4e421aa9727 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -410,14 +410,14 @@ void rds_ib_recv_refill(struct rds_connection *conn, int prefill, gfp_t gfp)
 			break;
 		}
 
-		/* XXX when can this fail? */
-		ret = ib_post_recv(ic->i_cm_id->qp, &recv->r_wr, &failed_wr);
-		rdsdebug("recv %p ibinc %p page %p addr %lu ret %d\n", recv,
+		rdsdebug("recv %p ibinc %p page %p addr %lu\n", recv,
 			 recv->r_ibinc, sg_page(&recv->r_frag->f_sg),
 			 (long) ib_sg_dma_address(
 				ic->i_cm_id->device,
-				&recv->r_frag->f_sg),
-			ret);
+				&recv->r_frag->f_sg));
+
+		/* XXX when can this fail? */
+		ret = ib_post_recv(ic->i_cm_id->qp, &recv->r_wr, &failed_wr);
 		if (ret) {
 			rds_ib_conn_error(conn, "recv post on "
 			       "%pI4 returned %d, disconnecting and "
diff --git a/net/rds/ib_send.c b/net/rds/ib_send.c
index 6ab39dbcca01..8557a1cae041 100644
--- a/net/rds/ib_send.c
+++ b/net/rds/ib_send.c
@@ -661,13 +661,15 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 			}
 		}
 
-		rds_ib_set_wr_signal_state(ic, send, 0);
+		rds_ib_set_wr_signal_state(ic, send, false);
 
 		/*
 		 * Always signal the last one if we're stopping due to flow control.
 		 */
-		if (ic->i_flowctl && flow_controlled && i == (work_alloc-1))
-			send->s_wr.send_flags |= IB_SEND_SIGNALED | IB_SEND_SOLICITED;
+		if (ic->i_flowctl && flow_controlled && i == (work_alloc - 1)) {
+			rds_ib_set_wr_signal_state(ic, send, true);
+			send->s_wr.send_flags |= IB_SEND_SOLICITED;
+		}
 
 		if (send->s_wr.send_flags & IB_SEND_SIGNALED)
 			nr_sig++;
@@ -705,11 +707,8 @@ int rds_ib_xmit(struct rds_connection *conn, struct rds_message *rm,
 	if (scat == &rm->data.op_sg[rm->data.op_count]) {
 		prev->s_op = ic->i_data_op;
 		prev->s_wr.send_flags |= IB_SEND_SOLICITED;
-		if (!(prev->s_wr.send_flags & IB_SEND_SIGNALED)) {
-			ic->i_unsignaled_wrs = rds_ib_sysctl_max_unsig_wrs;
-			prev->s_wr.send_flags |= IB_SEND_SIGNALED;
-			nr_sig++;
-		}
+		if (!(prev->s_wr.send_flags & IB_SEND_SIGNALED))
+			nr_sig += rds_ib_set_wr_signal_state(ic, prev, true);
 		ic->i_data_op = NULL;
 	}
 
@@ -792,6 +791,7 @@ int rds_ib_xmit_atomic(struct rds_connection *conn, struct rm_atomic_op *op)
 		send->s_atomic_wr.compare_add_mask = op->op_m_fadd.nocarry_mask;
 		send->s_atomic_wr.swap_mask = 0;
 	}
+	send->s_wr.send_flags = 0;
 	nr_sig = rds_ib_set_wr_signal_state(ic, send, op->op_notify);
 	send->s_atomic_wr.wr.num_sge = 1;
 	send->s_atomic_wr.wr.next = NULL;
diff --git a/net/rds/info.h b/net/rds/info.h
index b6c052ca7d22..a069b51c4679 100644
--- a/net/rds/info.h
+++ b/net/rds/info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDS_INFO_H
 #define _RDS_INFO_H
 
diff --git a/net/rds/loop.h b/net/rds/loop.h
index f32b0939a04d..469fa4b2da4f 100644
--- a/net/rds/loop.h
+++ b/net/rds/loop.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDS_LOOP_H
 #define _RDS_LOOP_H
 
diff --git a/net/rds/rdma_transport.h b/net/rds/rdma_transport.h
index ff2010e9d20c..d309c4430124 100644
--- a/net/rds/rdma_transport.h
+++ b/net/rds/rdma_transport.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDMA_TRANSPORT_H
 #define _RDMA_TRANSPORT_H
 
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 2e0315b159cb..c349c71babff 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDS_RDS_H
 #define _RDS_RDS_H
 
diff --git a/net/rds/rds_single_path.h b/net/rds/rds_single_path.h
index e1241af7c1ad..9521f6e99bef 100644
--- a/net/rds/rds_single_path.h
+++ b/net/rds/rds_single_path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDS_RDS_SINGLE_H
 #define _RDS_RDS_SINGLE_H
 
diff --git a/net/rds/tcp.h b/net/rds/tcp.h
index f8800b7ce79c..1aafbf7c3011 100644
--- a/net/rds/tcp.h
+++ b/net/rds/tcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RDS_TCP_H
 #define _RDS_TCP_H
 
diff --git a/net/rxrpc/Makefile b/net/rxrpc/Makefile
index 9c68d2f8ba39..6ffb7e9887ce 100644
--- a/net/rxrpc/Makefile
+++ b/net/rxrpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Linux kernel RxRPC
 #
diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index fb17552fd292..4b0a8288c98a 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -308,10 +308,11 @@ struct rxrpc_call *rxrpc_kernel_begin_call(struct socket *sock,
 	call = rxrpc_new_client_call(rx, &cp, srx, user_call_ID, tx_total_len,
 				     gfp);
 	/* The socket has been unlocked. */
-	if (!IS_ERR(call))
+	if (!IS_ERR(call)) {
 		call->notify_rx = notify_rx;
+		mutex_unlock(&call->user_mutex);
+	}
 
-	mutex_unlock(&call->user_mutex);
 	_leave(" = %p", call);
 	return call;
 }
diff --git a/net/sched/Makefile b/net/sched/Makefile
index 7b915d226de7..9e43a4721ef8 100644
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux Traffic Control Unit.
 #
diff --git a/net/sched/act_api.c b/net/sched/act_api.c
index a306974e2fb4..8f2c63514956 100644
--- a/net/sched/act_api.c
+++ b/net/sched/act_api.c
@@ -53,10 +53,13 @@ static void tcf_action_goto_chain_exec(const struct tc_action *a,
 	res->goto_tp = rcu_dereference_bh(chain->filter_chain);
 }
 
-static void free_tcf(struct rcu_head *head)
+/* XXX: For standalone actions, we don't need a RCU grace period either, because
+ * actions are always connected to filters and filters are already destroyed in
+ * RCU callbacks, so after a RCU grace period actions are already disconnected
+ * from filters. Readers later can not find us.
+ */
+static void free_tcf(struct tc_action *p)
 {
-	struct tc_action *p = container_of(head, struct tc_action, tcfa_rcu);
-
 	free_percpu(p->cpu_bstats);
 	free_percpu(p->cpu_qstats);
 
@@ -76,17 +79,15 @@ static void tcf_idr_remove(struct tcf_idrinfo *idrinfo, struct tc_action *p)
 	idr_remove_ext(&idrinfo->action_idr, p->tcfa_index);
 	spin_unlock_bh(&idrinfo->lock);
 	gen_kill_estimator(&p->tcfa_rate_est);
-	/*
-	 * gen_estimator est_timer() might access p->tcfa_lock
-	 * or bstats, wait a RCU grace period before freeing p
-	 */
-	call_rcu(&p->tcfa_rcu, free_tcf);
+	free_tcf(p);
 }
 
 int __tcf_idr_release(struct tc_action *p, bool bind, bool strict)
 {
 	int ret = 0;
 
+	ASSERT_RTNL();
+
 	if (p) {
 		if (bind)
 			p->tcfa_bindcnt--;
@@ -181,7 +182,7 @@ static int tcf_del_walker(struct tcf_idrinfo *idrinfo, struct sk_buff *skb,
 	idr_for_each_entry_ext(idr, p, id) {
 		ret = __tcf_idr_release(p, false, true);
 		if (ret == ACT_P_DELETED) {
-			module_put(p->ops->owner);
+			module_put(ops->owner);
 			n_i++;
 		} else if (ret < 0) {
 			goto nla_put_failure;
@@ -259,7 +260,7 @@ void tcf_idr_cleanup(struct tc_action *a, struct nlattr *est)
 {
 	if (est)
 		gen_kill_estimator(&a->tcfa_rate_est);
-	call_rcu(&a->tcfa_rcu, free_tcf);
+	free_tcf(a);
 }
 EXPORT_SYMBOL(tcf_idr_cleanup);
 
@@ -515,13 +516,15 @@ EXPORT_SYMBOL(tcf_action_exec);
 
 int tcf_action_destroy(struct list_head *actions, int bind)
 {
+	const struct tc_action_ops *ops;
 	struct tc_action *a, *tmp;
 	int ret = 0;
 
 	list_for_each_entry_safe(a, tmp, actions, list) {
+		ops = a->ops;
 		ret = __tcf_idr_release(a, bind, true);
 		if (ret == ACT_P_DELETED)
-			module_put(a->ops->owner);
+			module_put(ops->owner);
 		else if (ret < 0)
 			return ret;
 	}
diff --git a/net/sched/act_sample.c b/net/sched/act_sample.c
index ec986ae52808..8b5abcd2f32f 100644
--- a/net/sched/act_sample.c
+++ b/net/sched/act_sample.c
@@ -264,12 +264,13 @@ static int __init sample_init_module(void)
 
 static void __exit sample_cleanup_module(void)
 {
+	rcu_barrier();
 	tcf_unregister_action(&act_sample_ops, &sample_net_ops);
 }
 
 module_init(sample_init_module);
 module_exit(sample_cleanup_module);
 
-MODULE_AUTHOR("Yotam Gigi <yotamg@mellanox.com>");
+MODULE_AUTHOR("Yotam Gigi <yotam.gi@gmail.com>");
 MODULE_DESCRIPTION("Packet sampling action");
 MODULE_LICENSE("GPL v2");
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index c743f03cfebd..ecbb019efcbd 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -77,6 +77,8 @@ out:
 }
 EXPORT_SYMBOL(register_tcf_proto_ops);
 
+static struct workqueue_struct *tc_filter_wq;
+
 int unregister_tcf_proto_ops(struct tcf_proto_ops *ops)
 {
 	struct tcf_proto_ops *t;
@@ -86,6 +88,7 @@ int unregister_tcf_proto_ops(struct tcf_proto_ops *ops)
 	 * tcf_proto_ops's destroy() handler.
 	 */
 	rcu_barrier();
+	flush_workqueue(tc_filter_wq);
 
 	write_lock(&cls_mod_lock);
 	list_for_each_entry(t, &tcf_proto_base, head) {
@@ -100,6 +103,12 @@ int unregister_tcf_proto_ops(struct tcf_proto_ops *ops)
 }
 EXPORT_SYMBOL(unregister_tcf_proto_ops);
 
+bool tcf_queue_work(struct work_struct *work)
+{
+	return queue_work(tc_filter_wq, work);
+}
+EXPORT_SYMBOL(tcf_queue_work);
+
 /* Select new prio value from the range, managed by kernel. */
 
 static inline u32 tcf_auto_prio(struct tcf_proto *tp)
@@ -182,7 +191,7 @@ static struct tcf_chain *tcf_chain_create(struct tcf_block *block,
 	list_add_tail(&chain->list, &block->chain_list);
 	chain->block = block;
 	chain->index = chain_index;
-	chain->refcnt = 0;
+	chain->refcnt = 1;
 	return chain;
 }
 
@@ -194,21 +203,20 @@ static void tcf_chain_flush(struct tcf_chain *chain)
 		RCU_INIT_POINTER(*chain->p_filter_chain, NULL);
 	while ((tp = rtnl_dereference(chain->filter_chain)) != NULL) {
 		RCU_INIT_POINTER(chain->filter_chain, tp->next);
+		tcf_chain_put(chain);
 		tcf_proto_destroy(tp);
 	}
 }
 
 static void tcf_chain_destroy(struct tcf_chain *chain)
 {
-	/* May be already removed from the list by the previous call. */
-	if (!list_empty(&chain->list))
-		list_del_init(&chain->list);
+	list_del(&chain->list);
+	kfree(chain);
+}
 
-	/* There might still be a reference held when we got here from
-	 * tcf_block_put. Wait for the user to drop reference before free.
-	 */
-	if (!chain->refcnt)
-		kfree(chain);
+static void tcf_chain_hold(struct tcf_chain *chain)
+{
+	++chain->refcnt;
 }
 
 struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
@@ -217,24 +225,19 @@ struct tcf_chain *tcf_chain_get(struct tcf_block *block, u32 chain_index,
 	struct tcf_chain *chain;
 
 	list_for_each_entry(chain, &block->chain_list, list) {
-		if (chain->index == chain_index)
-			goto incref;
+		if (chain->index == chain_index) {
+			tcf_chain_hold(chain);
+			return chain;
+		}
 	}
-	chain = create ? tcf_chain_create(block, chain_index) : NULL;
 
-incref:
-	if (chain)
-		chain->refcnt++;
-	return chain;
+	return create ? tcf_chain_create(block, chain_index) : NULL;
 }
 EXPORT_SYMBOL(tcf_chain_get);
 
 void tcf_chain_put(struct tcf_chain *chain)
 {
-	/* Destroy unused chain, with exception of chain 0, which is the
-	 * default one and has to be always present.
-	 */
-	if (--chain->refcnt == 0 && !chain->filter_chain && chain->index != 0)
+	if (--chain->refcnt == 0)
 		tcf_chain_destroy(chain);
 }
 EXPORT_SYMBOL(tcf_chain_put);
@@ -272,6 +275,23 @@ err_chain_create:
 }
 EXPORT_SYMBOL(tcf_block_get);
 
+static void tcf_block_put_final(struct work_struct *work)
+{
+	struct tcf_block *block = container_of(work, struct tcf_block, work);
+	struct tcf_chain *chain, *tmp;
+
+	rtnl_lock();
+	/* Only chain 0 should be still here. */
+	list_for_each_entry_safe(chain, tmp, &block->chain_list, list)
+		tcf_chain_put(chain);
+	rtnl_unlock();
+	kfree(block);
+}
+
+/* XXX: Standalone actions are not allowed to jump to any chain, and bound
+ * actions should be all removed after flushing. However, filters are now
+ * destroyed in tc filter workqueue with RTNL lock, they can not race here.
+ */
 void tcf_block_put(struct tcf_block *block)
 {
 	struct tcf_chain *chain, *tmp;
@@ -279,11 +299,15 @@ void tcf_block_put(struct tcf_block *block)
 	if (!block)
 		return;
 
-	list_for_each_entry_safe(chain, tmp, &block->chain_list, list) {
+	list_for_each_entry_safe(chain, tmp, &block->chain_list, list)
 		tcf_chain_flush(chain);
-		tcf_chain_destroy(chain);
-	}
-	kfree(block);
+
+	INIT_WORK(&block->work, tcf_block_put_final);
+	/* Wait for RCU callbacks to release the reference count and make
+	 * sure their works have been queued before this.
+	 */
+	rcu_barrier();
+	tcf_queue_work(&block->work);
 }
 EXPORT_SYMBOL(tcf_block_put);
 
@@ -360,6 +384,7 @@ static void tcf_chain_tp_insert(struct tcf_chain *chain,
 		rcu_assign_pointer(*chain->p_filter_chain, tp);
 	RCU_INIT_POINTER(tp->next, tcf_chain_tp_prev(chain_info));
 	rcu_assign_pointer(*chain_info->pprev, tp);
+	tcf_chain_hold(chain);
 }
 
 static void tcf_chain_tp_remove(struct tcf_chain *chain,
@@ -371,6 +396,7 @@ static void tcf_chain_tp_remove(struct tcf_chain *chain,
 	if (chain->p_filter_chain && tp == chain->filter_chain)
 		RCU_INIT_POINTER(*chain->p_filter_chain, next);
 	RCU_INIT_POINTER(*chain_info->pprev, next);
+	tcf_chain_put(chain);
 }
 
 static struct tcf_proto *tcf_chain_tp_find(struct tcf_chain *chain,
@@ -862,6 +888,7 @@ void tcf_exts_destroy(struct tcf_exts *exts)
 #ifdef CONFIG_NET_CLS_ACT
 	LIST_HEAD(actions);
 
+	ASSERT_RTNL();
 	tcf_exts_to_list(exts, &actions);
 	tcf_action_destroy(&actions, TCA_ACT_UNBIND);
 	kfree(exts->actions);
@@ -900,6 +927,7 @@ int tcf_exts_validate(struct net *net, struct tcf_proto *tp, struct nlattr **tb,
 				exts->actions[i++] = act;
 			exts->nr_actions = i;
 		}
+		exts->net = net;
 	}
 #else
 	if ((exts->action && tb[exts->action]) ||
@@ -1013,6 +1041,10 @@ EXPORT_SYMBOL(tcf_exts_get_dev);
 
 static int __init tc_filter_init(void)
 {
+	tc_filter_wq = alloc_ordered_workqueue("tc_filter_workqueue", 0);
+	if (!tc_filter_wq)
+		return -ENOMEM;
+
 	rtnl_register(PF_UNSPEC, RTM_NEWTFILTER, tc_ctl_tfilter, NULL, 0);
 	rtnl_register(PF_UNSPEC, RTM_DELTFILTER, tc_ctl_tfilter, NULL, 0);
 	rtnl_register(PF_UNSPEC, RTM_GETTFILTER, tc_ctl_tfilter,
diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index d89ebafd2239..e43c56d5b96a 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -34,7 +34,10 @@ struct basic_filter {
 	struct tcf_result	res;
 	struct tcf_proto	*tp;
 	struct list_head	link;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 };
 
 static int basic_classify(struct sk_buff *skb, const struct tcf_proto *tp,
@@ -82,15 +85,31 @@ static int basic_init(struct tcf_proto *tp)
 	return 0;
 }
 
-static void basic_delete_filter(struct rcu_head *head)
+static void __basic_delete_filter(struct basic_filter *f)
 {
-	struct basic_filter *f = container_of(head, struct basic_filter, rcu);
-
 	tcf_exts_destroy(&f->exts);
 	tcf_em_tree_destroy(&f->ematches);
+	tcf_exts_put_net(&f->exts);
 	kfree(f);
 }
 
+static void basic_delete_filter_work(struct work_struct *work)
+{
+	struct basic_filter *f = container_of(work, struct basic_filter, work);
+
+	rtnl_lock();
+	__basic_delete_filter(f);
+	rtnl_unlock();
+}
+
+static void basic_delete_filter(struct rcu_head *head)
+{
+	struct basic_filter *f = container_of(head, struct basic_filter, rcu);
+
+	INIT_WORK(&f->work, basic_delete_filter_work);
+	tcf_queue_work(&f->work);
+}
+
 static void basic_destroy(struct tcf_proto *tp)
 {
 	struct basic_head *head = rtnl_dereference(tp->root);
@@ -99,7 +118,10 @@ static void basic_destroy(struct tcf_proto *tp)
 	list_for_each_entry_safe(f, n, &head->flist, link) {
 		list_del_rcu(&f->link);
 		tcf_unbind_filter(tp, &f->res);
-		call_rcu(&f->rcu, basic_delete_filter);
+		if (tcf_exts_get_net(&f->exts))
+			call_rcu(&f->rcu, basic_delete_filter);
+		else
+			__basic_delete_filter(f);
 	}
 	kfree_rcu(head, rcu);
 }
@@ -111,6 +133,7 @@ static int basic_delete(struct tcf_proto *tp, void *arg, bool *last)
 
 	list_del_rcu(&f->link);
 	tcf_unbind_filter(tp, &f->res);
+	tcf_exts_get_net(&f->exts);
 	call_rcu(&f->rcu, basic_delete_filter);
 	*last = list_empty(&head->flist);
 	return 0;
@@ -205,6 +228,7 @@ static int basic_change(struct net *net, struct sk_buff *in_skb,
 	if (fold) {
 		list_replace_rcu(&fold->link, &fnew->link);
 		tcf_unbind_filter(tp, &fold->res);
+		tcf_exts_get_net(&fold->exts);
 		call_rcu(&fold->rcu, basic_delete_filter);
 	} else {
 		list_add_rcu(&fnew->link, &head->flist);
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index 520c5027646a..990eb4d91d54 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -49,7 +49,10 @@ struct cls_bpf_prog {
 	struct sock_filter *bpf_ops;
 	const char *bpf_name;
 	struct tcf_proto *tp;
-	struct rcu_head rcu;
+	union {
+		struct work_struct work;
+		struct rcu_head rcu;
+	};
 };
 
 static const struct nla_policy bpf_policy[TCA_BPF_MAX + 1] = {
@@ -246,6 +249,7 @@ static int cls_bpf_init(struct tcf_proto *tp)
 static void __cls_bpf_delete_prog(struct cls_bpf_prog *prog)
 {
 	tcf_exts_destroy(&prog->exts);
+	tcf_exts_put_net(&prog->exts);
 
 	if (cls_bpf_is_ebpf(prog))
 		bpf_prog_put(prog->filter);
@@ -257,9 +261,21 @@ static void __cls_bpf_delete_prog(struct cls_bpf_prog *prog)
 	kfree(prog);
 }
 
+static void cls_bpf_delete_prog_work(struct work_struct *work)
+{
+	struct cls_bpf_prog *prog = container_of(work, struct cls_bpf_prog, work);
+
+	rtnl_lock();
+	__cls_bpf_delete_prog(prog);
+	rtnl_unlock();
+}
+
 static void cls_bpf_delete_prog_rcu(struct rcu_head *rcu)
 {
-	__cls_bpf_delete_prog(container_of(rcu, struct cls_bpf_prog, rcu));
+	struct cls_bpf_prog *prog = container_of(rcu, struct cls_bpf_prog, rcu);
+
+	INIT_WORK(&prog->work, cls_bpf_delete_prog_work);
+	tcf_queue_work(&prog->work);
 }
 
 static void __cls_bpf_delete(struct tcf_proto *tp, struct cls_bpf_prog *prog)
@@ -267,7 +283,10 @@ static void __cls_bpf_delete(struct tcf_proto *tp, struct cls_bpf_prog *prog)
 	cls_bpf_stop_offload(tp, prog);
 	list_del_rcu(&prog->link);
 	tcf_unbind_filter(tp, &prog->res);
-	call_rcu(&prog->rcu, cls_bpf_delete_prog_rcu);
+	if (tcf_exts_get_net(&prog->exts))
+		call_rcu(&prog->rcu, cls_bpf_delete_prog_rcu);
+	else
+		__cls_bpf_delete_prog(prog);
 }
 
 static int cls_bpf_delete(struct tcf_proto *tp, void *arg, bool *last)
@@ -501,6 +520,7 @@ static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
 	if (oldprog) {
 		list_replace_rcu(&oldprog->link, &prog->link);
 		tcf_unbind_filter(tp, &oldprog->res);
+		tcf_exts_get_net(&oldprog->exts);
 		call_rcu(&oldprog->rcu, cls_bpf_delete_prog_rcu);
 	} else {
 		list_add_rcu(&prog->link, &head->plist);
diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index d48452f87975..309d5899265f 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -23,7 +23,10 @@ struct cls_cgroup_head {
 	struct tcf_exts		exts;
 	struct tcf_ematch_tree	ematches;
 	struct tcf_proto	*tp;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 };
 
 static int cls_cgroup_classify(struct sk_buff *skb, const struct tcf_proto *tp,
@@ -57,15 +60,32 @@ static const struct nla_policy cgroup_policy[TCA_CGROUP_MAX + 1] = {
 	[TCA_CGROUP_EMATCHES]	= { .type = NLA_NESTED },
 };
 
+static void __cls_cgroup_destroy(struct cls_cgroup_head *head)
+{
+	tcf_exts_destroy(&head->exts);
+	tcf_em_tree_destroy(&head->ematches);
+	tcf_exts_put_net(&head->exts);
+	kfree(head);
+}
+
+static void cls_cgroup_destroy_work(struct work_struct *work)
+{
+	struct cls_cgroup_head *head = container_of(work,
+						    struct cls_cgroup_head,
+						    work);
+	rtnl_lock();
+	__cls_cgroup_destroy(head);
+	rtnl_unlock();
+}
+
 static void cls_cgroup_destroy_rcu(struct rcu_head *root)
 {
 	struct cls_cgroup_head *head = container_of(root,
 						    struct cls_cgroup_head,
 						    rcu);
 
-	tcf_exts_destroy(&head->exts);
-	tcf_em_tree_destroy(&head->ematches);
-	kfree(head);
+	INIT_WORK(&head->work, cls_cgroup_destroy_work);
+	tcf_queue_work(&head->work);
 }
 
 static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb,
@@ -110,8 +130,10 @@ static int cls_cgroup_change(struct net *net, struct sk_buff *in_skb,
 		goto errout;
 
 	rcu_assign_pointer(tp->root, new);
-	if (head)
+	if (head) {
+		tcf_exts_get_net(&head->exts);
 		call_rcu(&head->rcu, cls_cgroup_destroy_rcu);
+	}
 	return 0;
 errout:
 	tcf_exts_destroy(&new->exts);
@@ -124,8 +146,12 @@ static void cls_cgroup_destroy(struct tcf_proto *tp)
 	struct cls_cgroup_head *head = rtnl_dereference(tp->root);
 
 	/* Head can still be NULL due to cls_cgroup_init(). */
-	if (head)
-		call_rcu(&head->rcu, cls_cgroup_destroy_rcu);
+	if (head) {
+		if (tcf_exts_get_net(&head->exts))
+			call_rcu(&head->rcu, cls_cgroup_destroy_rcu);
+		else
+			__cls_cgroup_destroy(head);
+	}
 }
 
 static int cls_cgroup_delete(struct tcf_proto *tp, void *arg, bool *last)
diff --git a/net/sched/cls_flow.c b/net/sched/cls_flow.c
index 2a3a60ec5b86..85f765cff697 100644
--- a/net/sched/cls_flow.c
+++ b/net/sched/cls_flow.c
@@ -57,7 +57,10 @@ struct flow_filter {
 	u32			divisor;
 	u32			baseclass;
 	u32			hashrnd;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 };
 
 static inline u32 addr_fold(void *addr)
@@ -369,16 +372,32 @@ static const struct nla_policy flow_policy[TCA_FLOW_MAX + 1] = {
 	[TCA_FLOW_PERTURB]	= { .type = NLA_U32 },
 };
 
-static void flow_destroy_filter(struct rcu_head *head)
+static void __flow_destroy_filter(struct flow_filter *f)
 {
-	struct flow_filter *f = container_of(head, struct flow_filter, rcu);
-
 	del_timer_sync(&f->perturb_timer);
 	tcf_exts_destroy(&f->exts);
 	tcf_em_tree_destroy(&f->ematches);
+	tcf_exts_put_net(&f->exts);
 	kfree(f);
 }
 
+static void flow_destroy_filter_work(struct work_struct *work)
+{
+	struct flow_filter *f = container_of(work, struct flow_filter, work);
+
+	rtnl_lock();
+	__flow_destroy_filter(f);
+	rtnl_unlock();
+}
+
+static void flow_destroy_filter(struct rcu_head *head)
+{
+	struct flow_filter *f = container_of(head, struct flow_filter, rcu);
+
+	INIT_WORK(&f->work, flow_destroy_filter_work);
+	tcf_queue_work(&f->work);
+}
+
 static int flow_change(struct net *net, struct sk_buff *in_skb,
 		       struct tcf_proto *tp, unsigned long base,
 		       u32 handle, struct nlattr **tca,
@@ -539,8 +558,10 @@ static int flow_change(struct net *net, struct sk_buff *in_skb,
 
 	*arg = fnew;
 
-	if (fold)
+	if (fold) {
+		tcf_exts_get_net(&fold->exts);
 		call_rcu(&fold->rcu, flow_destroy_filter);
+	}
 	return 0;
 
 err2:
@@ -557,6 +578,7 @@ static int flow_delete(struct tcf_proto *tp, void *arg, bool *last)
 	struct flow_filter *f = arg;
 
 	list_del_rcu(&f->list);
+	tcf_exts_get_net(&f->exts);
 	call_rcu(&f->rcu, flow_destroy_filter);
 	*last = list_empty(&head->filters);
 	return 0;
@@ -581,7 +603,10 @@ static void flow_destroy(struct tcf_proto *tp)
 
 	list_for_each_entry_safe(f, next, &head->filters, list) {
 		list_del_rcu(&f->list);
-		call_rcu(&f->rcu, flow_destroy_filter);
+		if (tcf_exts_get_net(&f->exts))
+			call_rcu(&f->rcu, flow_destroy_filter);
+		else
+			__flow_destroy_filter(f);
 	}
 	kfree_rcu(head, rcu);
 }
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 1a267e77c6de..7a838d1c1c00 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -87,7 +87,10 @@ struct cls_fl_filter {
 	struct list_head list;
 	u32 handle;
 	u32 flags;
-	struct rcu_head	rcu;
+	union {
+		struct work_struct work;
+		struct rcu_head	rcu;
+	};
 	struct net_device *hw_dev;
 };
 
@@ -215,12 +218,28 @@ static int fl_init(struct tcf_proto *tp)
 	return 0;
 }
 
+static void __fl_destroy_filter(struct cls_fl_filter *f)
+{
+	tcf_exts_destroy(&f->exts);
+	tcf_exts_put_net(&f->exts);
+	kfree(f);
+}
+
+static void fl_destroy_filter_work(struct work_struct *work)
+{
+	struct cls_fl_filter *f = container_of(work, struct cls_fl_filter, work);
+
+	rtnl_lock();
+	__fl_destroy_filter(f);
+	rtnl_unlock();
+}
+
 static void fl_destroy_filter(struct rcu_head *head)
 {
 	struct cls_fl_filter *f = container_of(head, struct cls_fl_filter, rcu);
 
-	tcf_exts_destroy(&f->exts);
-	kfree(f);
+	INIT_WORK(&f->work, fl_destroy_filter_work);
+	tcf_queue_work(&f->work);
 }
 
 static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
@@ -234,6 +253,7 @@ static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
 	tc_cls_common_offload_init(&cls_flower.common, tp);
 	cls_flower.command = TC_CLSFLOWER_DESTROY;
 	cls_flower.cookie = (unsigned long) f;
+	cls_flower.egress_dev = f->hw_dev != tp->q->dev_queue->dev;
 
 	dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER, &cls_flower);
 }
@@ -289,6 +309,7 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
 	cls_flower.command = TC_CLSFLOWER_STATS;
 	cls_flower.cookie = (unsigned long) f;
 	cls_flower.exts = &f->exts;
+	cls_flower.egress_dev = f->hw_dev != tp->q->dev_queue->dev;
 
 	dev->netdev_ops->ndo_setup_tc(dev, TC_SETUP_CLSFLOWER,
 				      &cls_flower);
@@ -303,7 +324,10 @@ static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f)
 	if (!tc_skip_hw(f->flags))
 		fl_hw_destroy_filter(tp, f);
 	tcf_unbind_filter(tp, &f->res);
-	call_rcu(&f->rcu, fl_destroy_filter);
+	if (tcf_exts_get_net(&f->exts))
+		call_rcu(&f->rcu, fl_destroy_filter);
+	else
+		__fl_destroy_filter(f);
 }
 
 static void fl_destroy_sleepable(struct work_struct *work)
@@ -922,28 +946,28 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
 
 		if (!tc_flags_valid(fnew->flags)) {
 			err = -EINVAL;
-			goto errout;
+			goto errout_idr;
 		}
 	}
 
 	err = fl_set_parms(net, tp, fnew, &mask, base, tb, tca[TCA_RATE], ovr);
 	if (err)
-		goto errout;
+		goto errout_idr;
 
 	err = fl_check_assign_mask(head, &mask);
 	if (err)
-		goto errout;
+		goto errout_idr;
 
 	if (!tc_skip_sw(fnew->flags)) {
 		if (!fold && fl_lookup(head, &fnew->mkey)) {
 			err = -EEXIST;
-			goto errout;
+			goto errout_idr;
 		}
 
 		err = rhashtable_insert_fast(&head->ht, &fnew->ht_node,
 					     head->ht_params);
 		if (err)
-			goto errout;
+			goto errout_idr;
 	}
 
 	if (!tc_skip_hw(fnew->flags)) {
@@ -952,7 +976,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
 					   &mask.key,
 					   fnew);
 		if (err)
-			goto errout;
+			goto errout_idr;
 	}
 
 	if (!tc_in_hw(fnew->flags))
@@ -973,6 +997,7 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
 		idr_replace_ext(&head->handle_idr, fnew, fnew->handle);
 		list_replace_rcu(&fold->list, &fnew->list);
 		tcf_unbind_filter(tp, &fold->res);
+		tcf_exts_get_net(&fold->exts);
 		call_rcu(&fold->rcu, fl_destroy_filter);
 	} else {
 		list_add_tail_rcu(&fnew->list, &head->filters);
@@ -981,6 +1006,9 @@ static int fl_change(struct net *net, struct sk_buff *in_skb,
 	kfree(tb);
 	return 0;
 
+errout_idr:
+	if (fnew->handle)
+		idr_remove_ext(&head->handle_idr, fnew->handle);
 errout:
 	tcf_exts_destroy(&fnew->exts);
 	kfree(fnew);
diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index 941245ad07fd..7f45e5ab8afc 100644
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -46,7 +46,10 @@ struct fw_filter {
 #endif /* CONFIG_NET_CLS_IND */
 	struct tcf_exts		exts;
 	struct tcf_proto	*tp;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 };
 
 static u32 fw_hash(u32 handle)
@@ -119,12 +122,28 @@ static int fw_init(struct tcf_proto *tp)
 	return 0;
 }
 
+static void __fw_delete_filter(struct fw_filter *f)
+{
+	tcf_exts_destroy(&f->exts);
+	tcf_exts_put_net(&f->exts);
+	kfree(f);
+}
+
+static void fw_delete_filter_work(struct work_struct *work)
+{
+	struct fw_filter *f = container_of(work, struct fw_filter, work);
+
+	rtnl_lock();
+	__fw_delete_filter(f);
+	rtnl_unlock();
+}
+
 static void fw_delete_filter(struct rcu_head *head)
 {
 	struct fw_filter *f = container_of(head, struct fw_filter, rcu);
 
-	tcf_exts_destroy(&f->exts);
-	kfree(f);
+	INIT_WORK(&f->work, fw_delete_filter_work);
+	tcf_queue_work(&f->work);
 }
 
 static void fw_destroy(struct tcf_proto *tp)
@@ -141,7 +160,10 @@ static void fw_destroy(struct tcf_proto *tp)
 			RCU_INIT_POINTER(head->ht[h],
 					 rtnl_dereference(f->next));
 			tcf_unbind_filter(tp, &f->res);
-			call_rcu(&f->rcu, fw_delete_filter);
+			if (tcf_exts_get_net(&f->exts))
+				call_rcu(&f->rcu, fw_delete_filter);
+			else
+				__fw_delete_filter(f);
 		}
 	}
 	kfree_rcu(head, rcu);
@@ -166,6 +188,7 @@ static int fw_delete(struct tcf_proto *tp, void *arg, bool *last)
 		if (pfp == f) {
 			RCU_INIT_POINTER(*fp, rtnl_dereference(f->next));
 			tcf_unbind_filter(tp, &f->res);
+			tcf_exts_get_net(&f->exts);
 			call_rcu(&f->rcu, fw_delete_filter);
 			ret = 0;
 			break;
@@ -286,6 +309,7 @@ static int fw_change(struct net *net, struct sk_buff *in_skb,
 		RCU_INIT_POINTER(fnew->next, rtnl_dereference(pfp->next));
 		rcu_assign_pointer(*fp, fnew);
 		tcf_unbind_filter(tp, &f->res);
+		tcf_exts_get_net(&f->exts);
 		call_rcu(&f->rcu, fw_delete_filter);
 
 		*arg = fnew;
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 21cc45caf842..3684153cd8a9 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -21,7 +21,10 @@ struct cls_mall_head {
 	struct tcf_result res;
 	u32 handle;
 	u32 flags;
-	struct rcu_head	rcu;
+	union {
+		struct work_struct work;
+		struct rcu_head	rcu;
+	};
 };
 
 static int mall_classify(struct sk_buff *skb, const struct tcf_proto *tp,
@@ -32,6 +35,7 @@ static int mall_classify(struct sk_buff *skb, const struct tcf_proto *tp,
 	if (tc_skip_sw(head->flags))
 		return -1;
 
+	*res = head->res;
 	return tcf_exts_exec(skb, &head->exts, res);
 }
 
@@ -40,13 +44,29 @@ static int mall_init(struct tcf_proto *tp)
 	return 0;
 }
 
+static void __mall_destroy(struct cls_mall_head *head)
+{
+	tcf_exts_destroy(&head->exts);
+	tcf_exts_put_net(&head->exts);
+	kfree(head);
+}
+
+static void mall_destroy_work(struct work_struct *work)
+{
+	struct cls_mall_head *head = container_of(work, struct cls_mall_head,
+						  work);
+	rtnl_lock();
+	__mall_destroy(head);
+	rtnl_unlock();
+}
+
 static void mall_destroy_rcu(struct rcu_head *rcu)
 {
 	struct cls_mall_head *head = container_of(rcu, struct cls_mall_head,
 						  rcu);
 
-	tcf_exts_destroy(&head->exts);
-	kfree(head);
+	INIT_WORK(&head->work, mall_destroy_work);
+	tcf_queue_work(&head->work);
 }
 
 static int mall_replace_hw_filter(struct tcf_proto *tp,
@@ -95,7 +115,10 @@ static void mall_destroy(struct tcf_proto *tp)
 	if (tc_should_offload(dev, head->flags))
 		mall_destroy_hw_filter(tp, head, (unsigned long) head);
 
-	call_rcu(&head->rcu, mall_destroy_rcu);
+	if (tcf_exts_get_net(&head->exts))
+		call_rcu(&head->rcu, mall_destroy_rcu);
+	else
+		__mall_destroy(head);
 }
 
 static void *mall_get(struct tcf_proto *tp, u32 handle)
diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c
index 9ddde65915d2..ac9a5b8825b9 100644
--- a/net/sched/cls_route.c
+++ b/net/sched/cls_route.c
@@ -57,7 +57,10 @@ struct route4_filter {
 	u32			handle;
 	struct route4_bucket	*bkt;
 	struct tcf_proto	*tp;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 };
 
 #define ROUTE4_FAILURE ((struct route4_filter *)(-1L))
@@ -254,12 +257,28 @@ static int route4_init(struct tcf_proto *tp)
 	return 0;
 }
 
+static void __route4_delete_filter(struct route4_filter *f)
+{
+	tcf_exts_destroy(&f->exts);
+	tcf_exts_put_net(&f->exts);
+	kfree(f);
+}
+
+static void route4_delete_filter_work(struct work_struct *work)
+{
+	struct route4_filter *f = container_of(work, struct route4_filter, work);
+
+	rtnl_lock();
+	__route4_delete_filter(f);
+	rtnl_unlock();
+}
+
 static void route4_delete_filter(struct rcu_head *head)
 {
 	struct route4_filter *f = container_of(head, struct route4_filter, rcu);
 
-	tcf_exts_destroy(&f->exts);
-	kfree(f);
+	INIT_WORK(&f->work, route4_delete_filter_work);
+	tcf_queue_work(&f->work);
 }
 
 static void route4_destroy(struct tcf_proto *tp)
@@ -284,7 +303,10 @@ static void route4_destroy(struct tcf_proto *tp)
 					next = rtnl_dereference(f->next);
 					RCU_INIT_POINTER(b->ht[h2], next);
 					tcf_unbind_filter(tp, &f->res);
-					call_rcu(&f->rcu, route4_delete_filter);
+					if (tcf_exts_get_net(&f->exts))
+						call_rcu(&f->rcu, route4_delete_filter);
+					else
+						__route4_delete_filter(f);
 				}
 			}
 			RCU_INIT_POINTER(head->table[h1], NULL);
@@ -325,6 +347,7 @@ static int route4_delete(struct tcf_proto *tp, void *arg, bool *last)
 
 			/* Delete it */
 			tcf_unbind_filter(tp, &f->res);
+			tcf_exts_get_net(&f->exts);
 			call_rcu(&f->rcu, route4_delete_filter);
 
 			/* Strip RTNL protected tree */
@@ -528,6 +551,7 @@ static int route4_change(struct net *net, struct sk_buff *in_skb,
 	*arg = f;
 	if (fold) {
 		tcf_unbind_filter(tp, &fold->res);
+		tcf_exts_get_net(&fold->exts);
 		call_rcu(&fold->rcu, route4_delete_filter);
 	}
 	return 0;
diff --git a/net/sched/cls_rsvp.h b/net/sched/cls_rsvp.h
index 98c05db85bcb..cf325625c99d 100644
--- a/net/sched/cls_rsvp.h
+++ b/net/sched/cls_rsvp.h
@@ -97,7 +97,10 @@ struct rsvp_filter {
 
 	u32				handle;
 	struct rsvp_session		*sess;
-	struct rcu_head			rcu;
+	union {
+		struct work_struct		work;
+		struct rcu_head			rcu;
+	};
 };
 
 static inline unsigned int hash_dst(__be32 *dst, u8 protocol, u8 tunnelid)
@@ -282,12 +285,28 @@ static int rsvp_init(struct tcf_proto *tp)
 	return -ENOBUFS;
 }
 
+static void __rsvp_delete_filter(struct rsvp_filter *f)
+{
+	tcf_exts_destroy(&f->exts);
+	tcf_exts_put_net(&f->exts);
+	kfree(f);
+}
+
+static void rsvp_delete_filter_work(struct work_struct *work)
+{
+	struct rsvp_filter *f = container_of(work, struct rsvp_filter, work);
+
+	rtnl_lock();
+	__rsvp_delete_filter(f);
+	rtnl_unlock();
+}
+
 static void rsvp_delete_filter_rcu(struct rcu_head *head)
 {
 	struct rsvp_filter *f = container_of(head, struct rsvp_filter, rcu);
 
-	tcf_exts_destroy(&f->exts);
-	kfree(f);
+	INIT_WORK(&f->work, rsvp_delete_filter_work);
+	tcf_queue_work(&f->work);
 }
 
 static void rsvp_delete_filter(struct tcf_proto *tp, struct rsvp_filter *f)
@@ -297,7 +316,10 @@ static void rsvp_delete_filter(struct tcf_proto *tp, struct rsvp_filter *f)
 	 * grace period, since converted-to-rcu actions are relying on that
 	 * in cleanup() callback
 	 */
-	call_rcu(&f->rcu, rsvp_delete_filter_rcu);
+	if (tcf_exts_get_net(&f->exts))
+		call_rcu(&f->rcu, rsvp_delete_filter_rcu);
+	else
+		__rsvp_delete_filter(f);
 }
 
 static void rsvp_destroy(struct tcf_proto *tp)
@@ -389,7 +411,7 @@ static unsigned int gen_handle(struct tcf_proto *tp, unsigned salt)
 		if ((data->hgenerator += 0x10000) == 0)
 			data->hgenerator = 0x10000;
 		h = data->hgenerator|salt;
-		if (rsvp_get(tp, h) == 0)
+		if (!rsvp_get(tp, h))
 			return h;
 	}
 	return 0;
diff --git a/net/sched/cls_tcindex.c b/net/sched/cls_tcindex.c
index 14a7e08b2fa9..a76937ee0b2d 100644
--- a/net/sched/cls_tcindex.c
+++ b/net/sched/cls_tcindex.c
@@ -27,14 +27,20 @@
 struct tcindex_filter_result {
 	struct tcf_exts		exts;
 	struct tcf_result	res;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 };
 
 struct tcindex_filter {
 	u16 key;
 	struct tcindex_filter_result result;
 	struct tcindex_filter __rcu *next;
-	struct rcu_head rcu;
+	union {
+		struct work_struct work;
+		struct rcu_head rcu;
+	};
 };
 
 
@@ -133,12 +139,46 @@ static int tcindex_init(struct tcf_proto *tp)
 	return 0;
 }
 
+static void __tcindex_destroy_rexts(struct tcindex_filter_result *r)
+{
+	tcf_exts_destroy(&r->exts);
+	tcf_exts_put_net(&r->exts);
+}
+
+static void tcindex_destroy_rexts_work(struct work_struct *work)
+{
+	struct tcindex_filter_result *r;
+
+	r = container_of(work, struct tcindex_filter_result, work);
+	rtnl_lock();
+	__tcindex_destroy_rexts(r);
+	rtnl_unlock();
+}
+
 static void tcindex_destroy_rexts(struct rcu_head *head)
 {
 	struct tcindex_filter_result *r;
 
 	r = container_of(head, struct tcindex_filter_result, rcu);
-	tcf_exts_destroy(&r->exts);
+	INIT_WORK(&r->work, tcindex_destroy_rexts_work);
+	tcf_queue_work(&r->work);
+}
+
+static void __tcindex_destroy_fexts(struct tcindex_filter *f)
+{
+	tcf_exts_destroy(&f->result.exts);
+	tcf_exts_put_net(&f->result.exts);
+	kfree(f);
+}
+
+static void tcindex_destroy_fexts_work(struct work_struct *work)
+{
+	struct tcindex_filter *f = container_of(work, struct tcindex_filter,
+						work);
+
+	rtnl_lock();
+	__tcindex_destroy_fexts(f);
+	rtnl_unlock();
 }
 
 static void tcindex_destroy_fexts(struct rcu_head *head)
@@ -146,8 +186,8 @@ static void tcindex_destroy_fexts(struct rcu_head *head)
 	struct tcindex_filter *f = container_of(head, struct tcindex_filter,
 						rcu);
 
-	tcf_exts_destroy(&f->result.exts);
-	kfree(f);
+	INIT_WORK(&f->work, tcindex_destroy_fexts_work);
+	tcf_queue_work(&f->work);
 }
 
 static int tcindex_delete(struct tcf_proto *tp, void *arg, bool *last)
@@ -182,10 +222,17 @@ found:
 	 * grace period, since converted-to-rcu actions are relying on that
 	 * in cleanup() callback
 	 */
-	if (f)
-		call_rcu(&f->rcu, tcindex_destroy_fexts);
-	else
-		call_rcu(&r->rcu, tcindex_destroy_rexts);
+	if (f) {
+		if (tcf_exts_get_net(&f->result.exts))
+			call_rcu(&f->rcu, tcindex_destroy_fexts);
+		else
+			__tcindex_destroy_fexts(f);
+	} else {
+		if (tcf_exts_get_net(&r->exts))
+			call_rcu(&r->rcu, tcindex_destroy_rexts);
+		else
+			__tcindex_destroy_rexts(r);
+	}
 
 	*last = false;
 	return 0;
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 10b8d851fc6b..b58eccb21f03 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -68,7 +68,10 @@ struct tc_u_knode {
 	u32 __percpu		*pcpu_success;
 #endif
 	struct tcf_proto	*tp;
-	struct rcu_head		rcu;
+	union {
+		struct work_struct	work;
+		struct rcu_head		rcu;
+	};
 	/* The 'sel' field MUST be the last field in structure to allow for
 	 * tc_u32_keys allocated at end of structure.
 	 */
@@ -396,6 +399,7 @@ static int u32_destroy_key(struct tcf_proto *tp, struct tc_u_knode *n,
 			   bool free_pf)
 {
 	tcf_exts_destroy(&n->exts);
+	tcf_exts_put_net(&n->exts);
 	if (n->ht_down)
 		n->ht_down->refcnt--;
 #ifdef CONFIG_CLS_U32_PERF
@@ -418,11 +422,21 @@ static int u32_destroy_key(struct tcf_proto *tp, struct tc_u_knode *n,
  * this the u32_delete_key_rcu variant does not free the percpu
  * statistics.
  */
+static void u32_delete_key_work(struct work_struct *work)
+{
+	struct tc_u_knode *key = container_of(work, struct tc_u_knode, work);
+
+	rtnl_lock();
+	u32_destroy_key(key->tp, key, false);
+	rtnl_unlock();
+}
+
 static void u32_delete_key_rcu(struct rcu_head *rcu)
 {
 	struct tc_u_knode *key = container_of(rcu, struct tc_u_knode, rcu);
 
-	u32_destroy_key(key->tp, key, false);
+	INIT_WORK(&key->work, u32_delete_key_work);
+	tcf_queue_work(&key->work);
 }
 
 /* u32_delete_key_freepf_rcu is the rcu callback variant
@@ -432,11 +446,21 @@ static void u32_delete_key_rcu(struct rcu_head *rcu)
  * for the variant that should be used with keys return from
  * u32_init_knode()
  */
+static void u32_delete_key_freepf_work(struct work_struct *work)
+{
+	struct tc_u_knode *key = container_of(work, struct tc_u_knode, work);
+
+	rtnl_lock();
+	u32_destroy_key(key->tp, key, true);
+	rtnl_unlock();
+}
+
 static void u32_delete_key_freepf_rcu(struct rcu_head *rcu)
 {
 	struct tc_u_knode *key = container_of(rcu, struct tc_u_knode, rcu);
 
-	u32_destroy_key(key->tp, key, true);
+	INIT_WORK(&key->work, u32_delete_key_freepf_work);
+	tcf_queue_work(&key->work);
 }
 
 static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode *key)
@@ -453,6 +477,7 @@ static int u32_delete_key(struct tcf_proto *tp, struct tc_u_knode *key)
 				RCU_INIT_POINTER(*kp, key->next);
 
 				tcf_unbind_filter(tp, &key->res);
+				tcf_exts_get_net(&key->exts);
 				call_rcu(&key->rcu, u32_delete_key_freepf_rcu);
 				return 0;
 			}
@@ -565,7 +590,10 @@ static void u32_clear_hnode(struct tcf_proto *tp, struct tc_u_hnode *ht)
 					 rtnl_dereference(n->next));
 			tcf_unbind_filter(tp, &n->res);
 			u32_remove_hw_knode(tp, n->handle);
-			call_rcu(&n->rcu, u32_delete_key_freepf_rcu);
+			if (tcf_exts_get_net(&n->exts))
+				call_rcu(&n->rcu, u32_delete_key_freepf_rcu);
+			else
+				u32_destroy_key(n->tp, n, true);
 		}
 	}
 }
@@ -926,6 +954,7 @@ static int u32_change(struct net *net, struct sk_buff *in_skb,
 
 		u32_replace_knode(tp, tp_c, new);
 		tcf_unbind_filter(tp, &n->res);
+		tcf_exts_get_net(&n->exts);
 		call_rcu(&n->rcu, u32_delete_key_rcu);
 		return 0;
 	}
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index c6deb74e3d2f..22bc6fc48311 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -301,6 +301,8 @@ struct Qdisc *qdisc_lookup(struct net_device *dev, u32 handle)
 {
 	struct Qdisc *q;
 
+	if (!handle)
+		return NULL;
 	q = qdisc_match_from_root(dev->qdisc, handle);
 	if (q)
 		goto out;
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 92237e75dbbc..bf8c81e07c70 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -685,6 +685,7 @@ void qdisc_reset(struct Qdisc *qdisc)
 		qdisc->gso_skb = NULL;
 	}
 	qdisc->q.qlen = 0;
+	qdisc->qstats.backlog = 0;
 }
 EXPORT_SYMBOL(qdisc_reset);
 
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index daaf214e5201..3f88b75488b0 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -958,6 +958,8 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 	}
 
 	if (cl != NULL) {
+		int old_flags;
+
 		if (parentid) {
 			if (cl->cl_parent &&
 			    cl->cl_parent->cl_common.classid != parentid)
@@ -978,6 +980,8 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 		}
 
 		sch_tree_lock(sch);
+		old_flags = cl->cl_flags;
+
 		if (rsc != NULL)
 			hfsc_change_rsc(cl, rsc, cur_time);
 		if (fsc != NULL)
@@ -986,10 +990,21 @@ hfsc_change_class(struct Qdisc *sch, u32 classid, u32 parentid,
 			hfsc_change_usc(cl, usc, cur_time);
 
 		if (cl->qdisc->q.qlen != 0) {
-			if (cl->cl_flags & HFSC_RSC)
-				update_ed(cl, qdisc_peek_len(cl->qdisc));
-			if (cl->cl_flags & HFSC_FSC)
-				update_vf(cl, 0, cur_time);
+			int len = qdisc_peek_len(cl->qdisc);
+
+			if (cl->cl_flags & HFSC_RSC) {
+				if (old_flags & HFSC_RSC)
+					update_ed(cl, len);
+				else
+					init_ed(cl, len);
+			}
+
+			if (cl->cl_flags & HFSC_FSC) {
+				if (old_flags & HFSC_FSC)
+					update_vf(cl, 0, cur_time);
+				else
+					init_vf(cl, len);
+			}
 		}
 		sch_tree_unlock(sch);
 
diff --git a/net/sctp/Makefile b/net/sctp/Makefile
index 70f1b570bab9..8c434af3e68f 100644
--- a/net/sctp/Makefile
+++ b/net/sctp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for SCTP support code.
 #
diff --git a/net/sctp/input.c b/net/sctp/input.c
index 92a07141fd07..621b5ca3fd1c 100644
--- a/net/sctp/input.c
+++ b/net/sctp/input.c
@@ -421,7 +421,7 @@ void sctp_icmp_redirect(struct sock *sk, struct sctp_transport *t,
 {
 	struct dst_entry *dst;
 
-	if (!t)
+	if (sock_owned_by_user(sk) || !t)
 		return;
 	dst = sctp_transport_dst_check(t);
 	if (dst)
@@ -794,7 +794,7 @@ hit:
 struct sctp_hash_cmp_arg {
 	const union sctp_addr	*paddr;
 	const struct net	*net;
-	u16			lport;
+	__be16			lport;
 };
 
 static inline int sctp_hash_cmp(struct rhashtable_compare_arg *arg,
@@ -820,37 +820,37 @@ out:
 	return err;
 }
 
-static inline u32 sctp_hash_obj(const void *data, u32 len, u32 seed)
+static inline __u32 sctp_hash_obj(const void *data, u32 len, u32 seed)
 {
 	const struct sctp_transport *t = data;
 	const union sctp_addr *paddr = &t->ipaddr;
 	const struct net *net = sock_net(t->asoc->base.sk);
-	u16 lport = htons(t->asoc->base.bind_addr.port);
-	u32 addr;
+	__be16 lport = htons(t->asoc->base.bind_addr.port);
+	__u32 addr;
 
 	if (paddr->sa.sa_family == AF_INET6)
 		addr = jhash(&paddr->v6.sin6_addr, 16, seed);
 	else
-		addr = paddr->v4.sin_addr.s_addr;
+		addr = (__force __u32)paddr->v4.sin_addr.s_addr;
 
-	return  jhash_3words(addr, ((__u32)paddr->v4.sin_port) << 16 |
+	return  jhash_3words(addr, ((__force __u32)paddr->v4.sin_port) << 16 |
 			     (__force __u32)lport, net_hash_mix(net), seed);
 }
 
-static inline u32 sctp_hash_key(const void *data, u32 len, u32 seed)
+static inline __u32 sctp_hash_key(const void *data, u32 len, u32 seed)
 {
 	const struct sctp_hash_cmp_arg *x = data;
 	const union sctp_addr *paddr = x->paddr;
 	const struct net *net = x->net;
-	u16 lport = x->lport;
-	u32 addr;
+	__be16 lport = x->lport;
+	__u32 addr;
 
 	if (paddr->sa.sa_family == AF_INET6)
 		addr = jhash(&paddr->v6.sin6_addr, 16, seed);
 	else
-		addr = paddr->v4.sin_addr.s_addr;
+		addr = (__force __u32)paddr->v4.sin_addr.s_addr;
 
-	return  jhash_3words(addr, ((__u32)paddr->v4.sin_port) << 16 |
+	return  jhash_3words(addr, ((__force __u32)paddr->v4.sin_port) << 16 |
 			     (__force __u32)lport, net_hash_mix(net), seed);
 }
 
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index 51c488769590..a6dfa86c0201 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -738,7 +738,7 @@ static int sctp_v6_skb_iif(const struct sk_buff *skb)
 /* Was this packet marked by Explicit Congestion Notification? */
 static int sctp_v6_is_ce(const struct sk_buff *skb)
 {
-	return *((__u32 *)(ipv6_hdr(skb))) & htonl(1 << 20);
+	return *((__u32 *)(ipv6_hdr(skb))) & (__force __u32)htonl(1 << 20);
 }
 
 /* Dump the v6 addr to the seq file. */
@@ -882,8 +882,10 @@ static int sctp_inet6_bind_verify(struct sctp_sock *opt, union sctp_addr *addr)
 			net = sock_net(&opt->inet.sk);
 			rcu_read_lock();
 			dev = dev_get_by_index_rcu(net, addr->v6.sin6_scope_id);
-			if (!dev ||
-			    !ipv6_chk_addr(net, &addr->v6.sin6_addr, dev, 0)) {
+			if (!dev || !(opt->inet.freebind ||
+				      net->ipv6.sysctl.ip_nonlocal_bind ||
+				      ipv6_chk_addr(net, &addr->v6.sin6_addr,
+						    dev, 0))) {
 				rcu_read_unlock();
 				return 0;
 			}
diff --git a/net/sctp/sctp_diag.c b/net/sctp/sctp_diag.c
index e99518e79b52..a72a7d925d46 100644
--- a/net/sctp/sctp_diag.c
+++ b/net/sctp/sctp_diag.c
@@ -279,9 +279,11 @@ out:
 	return err;
 }
 
-static int sctp_sock_dump(struct sock *sk, void *p)
+static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
 {
+	struct sctp_endpoint *ep = tsp->asoc->ep;
 	struct sctp_comm_param *commp = p;
+	struct sock *sk = ep->base.sk;
 	struct sk_buff *skb = commp->skb;
 	struct netlink_callback *cb = commp->cb;
 	const struct inet_diag_req_v2 *r = commp->r;
@@ -289,9 +291,7 @@ static int sctp_sock_dump(struct sock *sk, void *p)
 	int err = 0;
 
 	lock_sock(sk);
-	if (!sctp_sk(sk)->ep)
-		goto release;
-	list_for_each_entry(assoc, &sctp_sk(sk)->ep->asocs, asocs) {
+	list_for_each_entry(assoc, &ep->asocs, asocs) {
 		if (cb->args[4] < cb->args[1])
 			goto next;
 
@@ -309,7 +309,6 @@ static int sctp_sock_dump(struct sock *sk, void *p)
 					cb->nlh->nlmsg_seq,
 					NLM_F_MULTI, cb->nlh,
 					commp->net_admin) < 0) {
-			cb->args[3] = 1;
 			err = 1;
 			goto release;
 		}
@@ -327,40 +326,30 @@ next:
 		cb->args[4]++;
 	}
 	cb->args[1] = 0;
-	cb->args[2]++;
 	cb->args[3] = 0;
 	cb->args[4] = 0;
 release:
 	release_sock(sk);
-	sock_put(sk);
 	return err;
 }
 
-static int sctp_get_sock(struct sctp_transport *tsp, void *p)
+static int sctp_sock_filter(struct sctp_transport *tsp, void *p)
 {
 	struct sctp_endpoint *ep = tsp->asoc->ep;
 	struct sctp_comm_param *commp = p;
 	struct sock *sk = ep->base.sk;
-	struct netlink_callback *cb = commp->cb;
 	const struct inet_diag_req_v2 *r = commp->r;
 	struct sctp_association *assoc =
 		list_entry(ep->asocs.next, struct sctp_association, asocs);
 
 	/* find the ep only once through the transports by this condition */
 	if (tsp->asoc != assoc)
-		goto out;
+		return 0;
 
 	if (r->sdiag_family != AF_UNSPEC && sk->sk_family != r->sdiag_family)
-		goto out;
-
-	sock_hold(sk);
-	cb->args[5] = (long)sk;
+		return 0;
 
 	return 1;
-
-out:
-	cb->args[2]++;
-	return 0;
 }
 
 static int sctp_ep_dump(struct sctp_endpoint *ep, void *p)
@@ -474,6 +463,7 @@ static void sctp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
 		.r = r,
 		.net_admin = netlink_net_capable(cb->skb, CAP_NET_ADMIN),
 	};
+	int pos = cb->args[2];
 
 	/* eps hashtable dumps
 	 * args:
@@ -503,12 +493,9 @@ skip:
 	if (!(idiag_states & ~(TCPF_LISTEN | TCPF_CLOSE)))
 		goto done;
 
-next:
-	cb->args[5] = 0;
-	sctp_for_each_transport(sctp_get_sock, net, cb->args[2], &commp);
-
-	if (cb->args[5] && !sctp_sock_dump((struct sock *)cb->args[5], &commp))
-		goto next;
+	sctp_for_each_transport(sctp_sock_filter, sctp_sock_dump,
+				net, &pos, &commp);
+	cb->args[2] = pos;
 
 done:
 	cb->args[1] = cb->args[4];
diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index ca8f196b6c6c..514465b03829 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -2854,7 +2854,7 @@ struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *asoc,
 		addr_param_len = af->to_addr_param(addr, &addr_param);
 		param.param_hdr.type = flags;
 		param.param_hdr.length = htons(paramlen + addr_param_len);
-		param.crr_id = i;
+		param.crr_id = htonl(i);
 
 		sctp_addto_chunk(retval, paramlen, &param);
 		sctp_addto_chunk(retval, addr_param_len, &addr_param);
@@ -2867,7 +2867,7 @@ struct sctp_chunk *sctp_make_asconf_update_ip(struct sctp_association *asoc,
 		addr_param_len = af->to_addr_param(addr, &addr_param);
 		param.param_hdr.type = SCTP_PARAM_DEL_IP;
 		param.param_hdr.length = htons(paramlen + addr_param_len);
-		param.crr_id = i;
+		param.crr_id = htonl(i);
 
 		sctp_addto_chunk(retval, paramlen, &param);
 		sctp_addto_chunk(retval, addr_param_len, &addr_param);
@@ -3591,7 +3591,7 @@ static struct sctp_chunk *sctp_make_reconf(const struct sctp_association *asoc,
  */
 struct sctp_chunk *sctp_make_strreset_req(
 					const struct sctp_association *asoc,
-					__u16 stream_num, __u16 *stream_list,
+					__u16 stream_num, __be16 *stream_list,
 					bool out, bool in)
 {
 	struct sctp_strreset_outreq outreq;
@@ -3788,7 +3788,8 @@ bool sctp_verify_reconf(const struct sctp_association *asoc,
 {
 	struct sctp_reconf_chunk *hdr;
 	union sctp_params param;
-	__u16 last = 0, cnt = 0;
+	__be16 last = 0;
+	__u16 cnt = 0;
 
 	hdr = (struct sctp_reconf_chunk *)chunk->chunk_hdr;
 	sctp_walk_params(param, hdr, params) {
diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index e6a2974e020e..e2d9a4b49c9c 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -1607,12 +1607,12 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
 			break;
 
 		case SCTP_CMD_INIT_FAILED:
-			sctp_cmd_init_failed(commands, asoc, cmd->obj.err);
+			sctp_cmd_init_failed(commands, asoc, cmd->obj.u32);
 			break;
 
 		case SCTP_CMD_ASSOC_FAILED:
 			sctp_cmd_assoc_failed(commands, asoc, event_type,
-					      subtype, chunk, cmd->obj.err);
+					      subtype, chunk, cmd->obj.u32);
 			break;
 
 		case SCTP_CMD_INIT_COUNTER_INC:
@@ -1680,8 +1680,8 @@ static int sctp_cmd_interpreter(enum sctp_event event_type,
 		case SCTP_CMD_PROCESS_CTSN:
 			/* Dummy up a SACK for processing. */
 			sackh.cum_tsn_ack = cmd->obj.be32;
-			sackh.a_rwnd = asoc->peer.rwnd +
-					asoc->outqueue.outstanding_bytes;
+			sackh.a_rwnd = htonl(asoc->peer.rwnd +
+					     asoc->outqueue.outstanding_bytes);
 			sackh.num_gap_ack_blocks = 0;
 			sackh.num_dup_tsns = 0;
 			chunk->subh.sack_hdr = &sackh;
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 1b00a1e09b93..6f45d1713452 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -170,6 +170,36 @@ static inline void sctp_set_owner_w(struct sctp_chunk *chunk)
 	sk_mem_charge(sk, chunk->skb->truesize);
 }
 
+static void sctp_clear_owner_w(struct sctp_chunk *chunk)
+{
+	skb_orphan(chunk->skb);
+}
+
+static void sctp_for_each_tx_datachunk(struct sctp_association *asoc,
+				       void (*cb)(struct sctp_chunk *))
+
+{
+	struct sctp_outq *q = &asoc->outqueue;
+	struct sctp_transport *t;
+	struct sctp_chunk *chunk;
+
+	list_for_each_entry(t, &asoc->peer.transport_addr_list, transports)
+		list_for_each_entry(chunk, &t->transmitted, transmitted_list)
+			cb(chunk);
+
+	list_for_each_entry(chunk, &q->retransmit, list)
+		cb(chunk);
+
+	list_for_each_entry(chunk, &q->sacked, list)
+		cb(chunk);
+
+	list_for_each_entry(chunk, &q->abandoned, list)
+		cb(chunk);
+
+	list_for_each_entry(chunk, &q->out_chunk_list, list)
+		cb(chunk);
+}
+
 /* Verify that this is a valid address. */
 static inline int sctp_verify_addr(struct sock *sk, union sctp_addr *addr,
 				   int len)
@@ -4658,29 +4688,39 @@ int sctp_transport_lookup_process(int (*cb)(struct sctp_transport *, void *),
 EXPORT_SYMBOL_GPL(sctp_transport_lookup_process);
 
 int sctp_for_each_transport(int (*cb)(struct sctp_transport *, void *),
-			    struct net *net, int pos, void *p) {
+			    int (*cb_done)(struct sctp_transport *, void *),
+			    struct net *net, int *pos, void *p) {
 	struct rhashtable_iter hti;
-	void *obj;
-	int err;
-
-	err = sctp_transport_walk_start(&hti);
-	if (err)
-		return err;
+	struct sctp_transport *tsp;
+	int ret;
 
-	obj = sctp_transport_get_idx(net, &hti, pos + 1);
-	for (; !IS_ERR_OR_NULL(obj); obj = sctp_transport_get_next(net, &hti)) {
-		struct sctp_transport *transport = obj;
+again:
+	ret = sctp_transport_walk_start(&hti);
+	if (ret)
+		return ret;
 
-		if (!sctp_transport_hold(transport))
+	tsp = sctp_transport_get_idx(net, &hti, *pos + 1);
+	for (; !IS_ERR_OR_NULL(tsp); tsp = sctp_transport_get_next(net, &hti)) {
+		if (!sctp_transport_hold(tsp))
 			continue;
-		err = cb(transport, p);
-		sctp_transport_put(transport);
-		if (err)
+		ret = cb(tsp, p);
+		if (ret)
 			break;
+		(*pos)++;
+		sctp_transport_put(tsp);
 	}
 	sctp_transport_walk_stop(&hti);
 
-	return err;
+	if (ret) {
+		if (cb_done && !cb_done(tsp, p)) {
+			(*pos)++;
+			sctp_transport_put(tsp);
+			goto again;
+		}
+		sctp_transport_put(tsp);
+	}
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(sctp_for_each_transport);
 
@@ -4896,6 +4936,10 @@ int sctp_do_peeloff(struct sock *sk, sctp_assoc_t id, struct socket **sockp)
 	struct socket *sock;
 	int err = 0;
 
+	/* Do not peel off from one netns to another one. */
+	if (!net_eq(current->nsproxy->net_ns, sock_net(sk)))
+		return -EINVAL;
+
 	if (!asoc)
 		return -EINVAL;
 
@@ -8198,7 +8242,9 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
 	 * paths won't try to lock it and then oldsk.
 	 */
 	lock_sock_nested(newsk, SINGLE_DEPTH_NESTING);
+	sctp_for_each_tx_datachunk(assoc, sctp_clear_owner_w);
 	sctp_assoc_migrate(assoc, newsk);
+	sctp_for_each_tx_datachunk(assoc, sctp_set_owner_w);
 
 	/* If the association on the newsk is already closed before accept()
 	 * is called, set RCV_SHUTDOWN flag.
diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index 63ea15503714..fa8371ff05c4 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -118,6 +118,7 @@ int sctp_send_reset_streams(struct sctp_association *asoc,
 	__u16 i, str_nums, *str_list;
 	struct sctp_chunk *chunk;
 	int retval = -EINVAL;
+	__be16 *nstr_list;
 	bool out, in;
 
 	if (!asoc->peer.reconf_capable ||
@@ -148,13 +149,18 @@ int sctp_send_reset_streams(struct sctp_association *asoc,
 			if (str_list[i] >= stream->incnt)
 				goto out;
 
+	nstr_list = kcalloc(str_nums, sizeof(__be16), GFP_KERNEL);
+	if (!nstr_list) {
+		retval = -ENOMEM;
+		goto out;
+	}
+
 	for (i = 0; i < str_nums; i++)
-		str_list[i] = htons(str_list[i]);
+		nstr_list[i] = htons(str_list[i]);
 
-	chunk = sctp_make_strreset_req(asoc, str_nums, str_list, out, in);
+	chunk = sctp_make_strreset_req(asoc, str_nums, nstr_list, out, in);
 
-	for (i = 0; i < str_nums; i++)
-		str_list[i] = ntohs(str_list[i]);
+	kfree(nstr_list);
 
 	if (!chunk) {
 		retval = -ENOMEM;
@@ -305,7 +311,7 @@ out:
 }
 
 static struct sctp_paramhdr *sctp_chunk_lookup_strreset_param(
-			struct sctp_association *asoc, __u32 resp_seq,
+			struct sctp_association *asoc, __be32 resp_seq,
 			__be16 type)
 {
 	struct sctp_chunk *chunk = asoc->strreset_chunk;
@@ -345,8 +351,9 @@ struct sctp_chunk *sctp_process_strreset_outreq(
 {
 	struct sctp_strreset_outreq *outreq = param.v;
 	struct sctp_stream *stream = &asoc->stream;
-	__u16 i, nums, flags = 0, *str_p = NULL;
 	__u32 result = SCTP_STRRESET_DENIED;
+	__u16 i, nums, flags = 0;
+	__be16 *str_p = NULL;
 	__u32 request_seq;
 
 	request_seq = ntohl(outreq->request_seq);
@@ -439,8 +446,9 @@ struct sctp_chunk *sctp_process_strreset_inreq(
 	struct sctp_stream *stream = &asoc->stream;
 	__u32 result = SCTP_STRRESET_DENIED;
 	struct sctp_chunk *chunk = NULL;
-	__u16 i, nums, *str_p;
 	__u32 request_seq;
+	__u16 i, nums;
+	__be16 *str_p;
 
 	request_seq = ntohl(inreq->request_seq);
 	if (TSN_lt(asoc->strreset_inseq, request_seq) ||
@@ -769,7 +777,7 @@ struct sctp_chunk *sctp_process_strreset_resp(
 
 	if (req->type == SCTP_PARAM_RESET_OUT_REQUEST) {
 		struct sctp_strreset_outreq *outreq;
-		__u16 *str_p;
+		__be16 *str_p;
 
 		outreq = (struct sctp_strreset_outreq *)req;
 		str_p = outreq->list_of_streams;
@@ -794,7 +802,7 @@ struct sctp_chunk *sctp_process_strreset_resp(
 			nums, str_p, GFP_ATOMIC);
 	} else if (req->type == SCTP_PARAM_RESET_IN_REQUEST) {
 		struct sctp_strreset_inreq *inreq;
-		__u16 *str_p;
+		__be16 *str_p;
 
 		/* if the result is performed, it's impossible for inreq */
 		if (result == SCTP_STRRESET_PERFORMED)
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 67abc0194f30..5447228bf1a0 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -847,7 +847,7 @@ struct sctp_ulpevent *sctp_ulpevent_make_sender_dry_event(
 
 struct sctp_ulpevent *sctp_ulpevent_make_stream_reset_event(
 	const struct sctp_association *asoc, __u16 flags, __u16 stream_num,
-	__u16 *stream_list, gfp_t gfp)
+	__be16 *stream_list, gfp_t gfp)
 {
 	struct sctp_stream_reset_event *sreset;
 	struct sctp_ulpevent *event;
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 8c6d24b2995d..745f145d4c4d 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -282,6 +282,7 @@ int smc_netinfo_by_tcpsk(struct socket *clcsock,
 			 __be32 *subnet, u8 *prefix_len)
 {
 	struct dst_entry *dst = sk_dst_get(clcsock->sk);
+	struct in_device *in_dev;
 	struct sockaddr_in addr;
 	int rc = -ENOENT;
 	int len;
@@ -298,14 +299,17 @@ int smc_netinfo_by_tcpsk(struct socket *clcsock,
 	/* get address to which the internal TCP socket is bound */
 	kernel_getsockname(clcsock, (struct sockaddr *)&addr, &len);
 	/* analyze IPv4 specific data of net_device belonging to TCP socket */
-	for_ifa(dst->dev->ip_ptr) {
-		if (ifa->ifa_address != addr.sin_addr.s_addr)
+	rcu_read_lock();
+	in_dev = __in_dev_get_rcu(dst->dev);
+	for_ifa(in_dev) {
+		if (!inet_ifa_match(addr.sin_addr.s_addr, ifa))
 			continue;
 		*prefix_len = inet_mask_len(ifa->ifa_mask);
 		*subnet = ifa->ifa_address & ifa->ifa_mask;
 		rc = 0;
 		break;
-	} endfor_ifa(dst->dev->ip_ptr);
+	} endfor_ifa(in_dev);
+	rcu_read_unlock();
 
 out_rel:
 	dst_release(dst);
@@ -509,7 +513,7 @@ decline_rdma:
 	/* RDMA setup failed, switch back to TCP */
 	smc->use_fallback = true;
 	if (reason_code && (reason_code != SMC_CLC_DECL_REPLY)) {
-		rc = smc_clc_send_decline(smc, reason_code, 0);
+		rc = smc_clc_send_decline(smc, reason_code);
 		if (rc < sizeof(struct smc_clc_msg_decline))
 			goto out_err;
 	}
@@ -804,8 +808,6 @@ static void smc_listen_work(struct work_struct *work)
 		rc = local_contact;
 		if (rc == -ENOMEM)
 			reason_code = SMC_CLC_DECL_MEM;/* insufficient memory*/
-		else if (rc == -ENOLINK)
-			reason_code = SMC_CLC_DECL_SYNCERR; /* synchr. error */
 		goto decline_rdma;
 	}
 	link = &new_smc->conn.lgr->lnk[SMC_SINGLE_LINK];
@@ -899,7 +901,7 @@ decline_rdma:
 	smc_conn_free(&new_smc->conn);
 	new_smc->use_fallback = true;
 	if (reason_code && (reason_code != SMC_CLC_DECL_REPLY)) {
-		rc = smc_clc_send_decline(new_smc, reason_code, 0);
+		rc = smc_clc_send_decline(new_smc, reason_code);
 		if (rc < sizeof(struct smc_clc_msg_decline))
 			goto out_err;
 	}
diff --git a/net/smc/smc.h b/net/smc/smc.h
index 6e44313e4467..0bee9d16cf29 100644
--- a/net/smc/smc.h
+++ b/net/smc/smc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -149,7 +150,7 @@ struct smc_connection {
 	atomic_t		sndbuf_space;	/* remaining space in sndbuf */
 	u16			tx_cdc_seq;	/* sequence # for CDC send */
 	spinlock_t		send_lock;	/* protect wr_sends */
-	struct work_struct	tx_work;	/* retry of smc_cdc_msg_send */
+	struct delayed_work	tx_work;	/* retry of smc_cdc_msg_send */
 
 	struct smc_host_cdc_msg	local_rx_ctrl;	/* filled during event_handl.
 						 * .prod cf. TCP rcv_nxt
diff --git a/net/smc/smc_cdc.c b/net/smc/smc_cdc.c
index a7294edbc221..535e72cfc64b 100644
--- a/net/smc/smc_cdc.c
+++ b/net/smc/smc_cdc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_cdc.h b/net/smc/smc_cdc.h
index 8e1d76f26007..bea61dadaf36 100644
--- a/net/smc/smc_cdc.h
+++ b/net/smc/smc_cdc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_clc.c b/net/smc/smc_clc.c
index 3934913ab835..1800e16b2a02 100644
--- a/net/smc/smc_clc.c
+++ b/net/smc/smc_clc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -95,9 +96,10 @@ int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
 	}
 	if (clcm->type == SMC_CLC_DECLINE) {
 		reason_code = SMC_CLC_DECL_REPLY;
-		if (ntohl(((struct smc_clc_msg_decline *)buf)->peer_diagnosis)
-			== SMC_CLC_DECL_SYNCERR)
+		if (((struct smc_clc_msg_decline *)buf)->hdr.flag) {
 			smc->conn.lgr->sync_err = true;
+			smc_lgr_terminate(smc->conn.lgr);
+		}
 	}
 
 out:
@@ -105,8 +107,7 @@ out:
 }
 
 /* send CLC DECLINE message across internal TCP socket */
-int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info,
-			 u8 out_of_sync)
+int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info)
 {
 	struct smc_clc_msg_decline dclc;
 	struct msghdr msg;
@@ -118,7 +119,7 @@ int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info,
 	dclc.hdr.type = SMC_CLC_DECLINE;
 	dclc.hdr.length = htons(sizeof(struct smc_clc_msg_decline));
 	dclc.hdr.version = SMC_CLC_V1;
-	dclc.hdr.flag = out_of_sync ? 1 : 0;
+	dclc.hdr.flag = (peer_diag_info == SMC_CLC_DECL_SYNCERR) ? 1 : 0;
 	memcpy(dclc.id_for_peer, local_systemid, sizeof(local_systemid));
 	dclc.peer_diagnosis = htonl(peer_diag_info);
 	memcpy(dclc.trl.eyecatcher, SMC_EYECATCHER, sizeof(SMC_EYECATCHER));
diff --git a/net/smc/smc_clc.h b/net/smc/smc_clc.h
index 13db8ce177c9..12a9af1539a2 100644
--- a/net/smc/smc_clc.h
+++ b/net/smc/smc_clc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -106,8 +107,7 @@ struct smc_ib_device;
 
 int smc_clc_wait_msg(struct smc_sock *smc, void *buf, int buflen,
 		     u8 expected_type);
-int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info,
-			 u8 out_of_sync);
+int smc_clc_send_decline(struct smc_sock *smc, u32 peer_diag_info);
 int smc_clc_send_proposal(struct smc_sock *smc, struct smc_ib_device *smcibdev,
 			  u8 ibport);
 int smc_clc_send_confirm(struct smc_sock *smc);
diff --git a/net/smc/smc_close.c b/net/smc/smc_close.c
index 3c2e166b5d22..2427a1f3d0d1 100644
--- a/net/smc/smc_close.c
+++ b/net/smc/smc_close.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -174,15 +175,15 @@ int smc_close_active(struct smc_sock *smc)
 {
 	struct smc_cdc_conn_state_flags *txflags =
 		&smc->conn.local_tx_ctrl.conn_state_flags;
-	long timeout = SMC_MAX_STREAM_WAIT_TIMEOUT;
 	struct smc_connection *conn = &smc->conn;
 	struct sock *sk = &smc->sk;
 	int old_state;
+	long timeout;
 	int rc = 0;
 
-	if (sock_flag(sk, SOCK_LINGER) &&
-	    !(current->flags & PF_EXITING))
-		timeout = sk->sk_lingertime;
+	timeout = current->flags & PF_EXITING ?
+		  0 : sock_flag(sk, SOCK_LINGER) ?
+		      sk->sk_lingertime : SMC_MAX_STREAM_WAIT_TIMEOUT;
 
 again:
 	old_state = sk->sk_state;
@@ -208,7 +209,7 @@ again:
 	case SMC_ACTIVE:
 		smc_close_stream_wait(smc, timeout);
 		release_sock(sk);
-		cancel_work_sync(&conn->tx_work);
+		cancel_delayed_work_sync(&conn->tx_work);
 		lock_sock(sk);
 		if (sk->sk_state == SMC_ACTIVE) {
 			/* send close request */
@@ -234,7 +235,7 @@ again:
 		if (!smc_cdc_rxed_any_close(conn))
 			smc_close_stream_wait(smc, timeout);
 		release_sock(sk);
-		cancel_work_sync(&conn->tx_work);
+		cancel_delayed_work_sync(&conn->tx_work);
 		lock_sock(sk);
 		if (sk->sk_err != ECONNABORTED) {
 			/* confirm close from peer */
@@ -263,7 +264,9 @@ again:
 		/* peer sending PeerConnectionClosed will cause transition */
 		break;
 	case SMC_PROCESSABORT:
-		cancel_work_sync(&conn->tx_work);
+		release_sock(sk);
+		cancel_delayed_work_sync(&conn->tx_work);
+		lock_sock(sk);
 		smc_close_abort(conn);
 		sk->sk_state = SMC_CLOSED;
 		smc_close_wait_tx_pends(smc);
@@ -411,13 +414,14 @@ void smc_close_sock_put_work(struct work_struct *work)
 int smc_close_shutdown_write(struct smc_sock *smc)
 {
 	struct smc_connection *conn = &smc->conn;
-	long timeout = SMC_MAX_STREAM_WAIT_TIMEOUT;
 	struct sock *sk = &smc->sk;
 	int old_state;
+	long timeout;
 	int rc = 0;
 
-	if (sock_flag(sk, SOCK_LINGER))
-		timeout = sk->sk_lingertime;
+	timeout = current->flags & PF_EXITING ?
+		  0 : sock_flag(sk, SOCK_LINGER) ?
+		      sk->sk_lingertime : SMC_MAX_STREAM_WAIT_TIMEOUT;
 
 again:
 	old_state = sk->sk_state;
@@ -425,7 +429,7 @@ again:
 	case SMC_ACTIVE:
 		smc_close_stream_wait(smc, timeout);
 		release_sock(sk);
-		cancel_work_sync(&conn->tx_work);
+		cancel_delayed_work_sync(&conn->tx_work);
 		lock_sock(sk);
 		/* send close wr request */
 		rc = smc_close_wr(conn);
@@ -439,7 +443,7 @@ again:
 		if (!smc_cdc_rxed_any_close(conn))
 			smc_close_stream_wait(smc, timeout);
 		release_sock(sk);
-		cancel_work_sync(&conn->tx_work);
+		cancel_delayed_work_sync(&conn->tx_work);
 		lock_sock(sk);
 		/* confirm close from peer */
 		rc = smc_close_wr(conn);
diff --git a/net/smc/smc_close.h b/net/smc/smc_close.h
index 4a3d99a8d7cb..ed82506b1b0a 100644
--- a/net/smc/smc_close.h
+++ b/net/smc/smc_close.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c
index 1a16d51e2330..413e3868fbf3 100644
--- a/net/smc/smc_core.c
+++ b/net/smc/smc_core.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -25,8 +26,9 @@
 #include "smc_cdc.h"
 #include "smc_close.h"
 
-#define SMC_LGR_NUM_INCR	256
-#define SMC_LGR_FREE_DELAY	(600 * HZ)
+#define SMC_LGR_NUM_INCR		256
+#define SMC_LGR_FREE_DELAY_SERV		(600 * HZ)
+#define SMC_LGR_FREE_DELAY_CLNT		(SMC_LGR_FREE_DELAY_SERV + 10)
 
 static u32 smc_lgr_num;			/* unique link group number */
 
@@ -107,8 +109,15 @@ static void smc_lgr_unregister_conn(struct smc_connection *conn)
 		__smc_lgr_unregister_conn(conn);
 	}
 	write_unlock_bh(&lgr->conns_lock);
-	if (reduced && !lgr->conns_num)
-		schedule_delayed_work(&lgr->free_work, SMC_LGR_FREE_DELAY);
+	if (!reduced || lgr->conns_num)
+		return;
+	/* client link group creation always follows the server link group
+	 * creation. For client use a somewhat higher removal delay time,
+	 * otherwise there is a risk of out-of-sync link groups.
+	 */
+	mod_delayed_work(system_wq, &lgr->free_work,
+			 lgr->role == SMC_CLNT ? SMC_LGR_FREE_DELAY_CLNT :
+						 SMC_LGR_FREE_DELAY_SERV);
 }
 
 static void smc_lgr_free_work(struct work_struct *work)
diff --git a/net/smc/smc_core.h b/net/smc/smc_core.h
index 19c44bf4e391..fe691bf9af91 100644
--- a/net/smc/smc_core.h
+++ b/net/smc/smc_core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_ib.c b/net/smc/smc_ib.c
index 547e0e113b17..9033b8a36fe1 100644
--- a/net/smc/smc_ib.c
+++ b/net/smc/smc_ib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -380,6 +381,7 @@ static int smc_ib_fill_gid_and_mac(struct smc_ib_device *smcibdev, u8 ibport)
 	ndev = smcibdev->ibdev->get_netdev(smcibdev->ibdev, ibport);
 	if (ndev) {
 		memcpy(&smcibdev->mac, ndev->dev_addr, ETH_ALEN);
+		dev_put(ndev);
 	} else if (!rc) {
 		memcpy(&smcibdev->mac[ibport - 1][0],
 		       &smcibdev->gid[ibport - 1].raw[8], 3);
diff --git a/net/smc/smc_ib.h b/net/smc/smc_ib.h
index 9b927a33d5e6..e90630dadf8e 100644
--- a/net/smc/smc_ib.h
+++ b/net/smc/smc_ib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c
index c2f9165d13ef..92fe4cc8c82c 100644
--- a/net/smc/smc_llc.c
+++ b/net/smc/smc_llc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_llc.h b/net/smc/smc_llc.h
index b472f853953a..51b27ce90dbd 100644
--- a/net/smc/smc_llc.h
+++ b/net/smc/smc_llc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c
index 78f7af28ae4f..74568cdbca70 100644
--- a/net/smc/smc_pnet.c
+++ b/net/smc/smc_pnet.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -181,8 +182,10 @@ static int smc_pnet_enter(struct smc_pnetentry *new_pnetelem)
 			     sizeof(new_pnetelem->ndev->name)) ||
 		    smc_pnet_same_ibname(pnetelem,
 					 new_pnetelem->smcibdev->ibdev->name,
-					 new_pnetelem->ib_port))
+					 new_pnetelem->ib_port)) {
+			dev_put(pnetelem->ndev);
 			goto found;
+		}
 	}
 	list_add_tail(&new_pnetelem->list, &smc_pnettable.pnetlist);
 	rc = 0;
diff --git a/net/smc/smc_pnet.h b/net/smc/smc_pnet.h
index c4f1bccd4358..5a29519db976 100644
--- a/net/smc/smc_pnet.h
+++ b/net/smc/smc_pnet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_rx.c b/net/smc/smc_rx.c
index b17a333e9bb0..cbf58637ee14 100644
--- a/net/smc/smc_rx.c
+++ b/net/smc/smc_rx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -148,6 +149,8 @@ int smc_rx_recvmsg(struct smc_sock *smc, struct msghdr *msg, size_t len,
 				read_done = sock_intr_errno(timeo);
 				break;
 			}
+			if (!timeo)
+				return -EAGAIN;
 		}
 
 		if (!atomic_read(&conn->bytes_to_rcv)) {
diff --git a/net/smc/smc_rx.h b/net/smc/smc_rx.h
index b5b80e1f8b0f..3a32b59bf06c 100644
--- a/net/smc/smc_rx.h
+++ b/net/smc/smc_rx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_tx.c b/net/smc/smc_tx.c
index 3c656beb8820..710ab3fbf607 100644
--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -24,6 +25,8 @@
 #include "smc_cdc.h"
 #include "smc_tx.h"
 
+#define SMC_TX_WORK_DELAY	HZ
+
 /***************************** sndbuf producer *******************************/
 
 /* callback implementation for sk.sk_write_space()
@@ -406,7 +409,8 @@ int smc_tx_sndbuf_nonempty(struct smc_connection *conn)
 				goto out_unlock;
 			}
 			rc = 0;
-			schedule_work(&conn->tx_work);
+			schedule_delayed_work(&conn->tx_work,
+					      SMC_TX_WORK_DELAY);
 		}
 		goto out_unlock;
 	}
@@ -430,7 +434,7 @@ out_unlock:
  */
 static void smc_tx_work(struct work_struct *work)
 {
-	struct smc_connection *conn = container_of(work,
+	struct smc_connection *conn = container_of(to_delayed_work(work),
 						   struct smc_connection,
 						   tx_work);
 	struct smc_sock *smc = container_of(conn, struct smc_sock, conn);
@@ -468,7 +472,8 @@ void smc_tx_consumer_update(struct smc_connection *conn)
 		if (!rc)
 			rc = smc_cdc_msg_send(conn, wr_buf, pend);
 		if (rc < 0) {
-			schedule_work(&conn->tx_work);
+			schedule_delayed_work(&conn->tx_work,
+					      SMC_TX_WORK_DELAY);
 			return;
 		}
 		smc_curs_write(&conn->rx_curs_confirmed,
@@ -487,6 +492,6 @@ void smc_tx_consumer_update(struct smc_connection *conn)
 void smc_tx_init(struct smc_sock *smc)
 {
 	smc->sk.sk_write_space = smc_tx_write_space;
-	INIT_WORK(&smc->conn.tx_work, smc_tx_work);
+	INIT_DELAYED_WORK(&smc->conn.tx_work, smc_tx_work);
 	spin_lock_init(&smc->conn.send_lock);
 }
diff --git a/net/smc/smc_tx.h b/net/smc/smc_tx.h
index 1d6a0dcdcfe6..78255964fa4d 100644
--- a/net/smc/smc_tx.h
+++ b/net/smc/smc_tx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index ab56bda66783..de4537f66832 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
@@ -244,7 +245,7 @@ int smc_wr_tx_send(struct smc_link *link, struct smc_wr_tx_pend_priv *priv)
 	int rc;
 
 	ib_req_notify_cq(link->smcibdev->roce_cq_send,
-			 IB_CQ_SOLICITED_MASK | IB_CQ_REPORT_MISSED_EVENTS);
+			 IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS);
 	pend = container_of(priv, struct smc_wr_tx_pend, priv);
 	rc = ib_post_send(link->roce_qp, &link->wr_tx_ibs[pend->idx],
 			  &failed_wr);
diff --git a/net/smc/smc_wr.h b/net/smc/smc_wr.h
index 45eb53833052..2acf12b06063 100644
--- a/net/smc/smc_wr.h
+++ b/net/smc/smc_wr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Shared Memory Communications over RDMA (SMC-R) and RoCE
  *
diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index d4ea46a5f233..c5fda15ba319 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -49,7 +49,7 @@ static void strp_abort_strp(struct strparser *strp, int err)
 {
 	/* Unrecoverable error in receive */
 
-	del_timer(&strp->msg_timer);
+	cancel_delayed_work(&strp->msg_timer_work);
 
 	if (strp->stopped)
 		return;
@@ -68,7 +68,7 @@ static void strp_abort_strp(struct strparser *strp, int err)
 static void strp_start_timer(struct strparser *strp, long timeo)
 {
 	if (timeo)
-		mod_timer(&strp->msg_timer, timeo);
+		mod_delayed_work(strp_wq, &strp->msg_timer_work, timeo);
 }
 
 /* Lower lock held */
@@ -319,7 +319,7 @@ static int __strp_recv(read_descriptor_t *desc, struct sk_buff *orig_skb,
 		eaten += (cand_len - extra);
 
 		/* Hurray, we have a new message! */
-		del_timer(&strp->msg_timer);
+		cancel_delayed_work(&strp->msg_timer_work);
 		strp->skb_head = NULL;
 		STRP_STATS_INCR(strp->stats.msgs);
 
@@ -450,9 +450,10 @@ static void strp_work(struct work_struct *w)
 	do_strp_work(container_of(w, struct strparser, work));
 }
 
-static void strp_msg_timeout(unsigned long arg)
+static void strp_msg_timeout(struct work_struct *w)
 {
-	struct strparser *strp = (struct strparser *)arg;
+	struct strparser *strp = container_of(w, struct strparser,
+					      msg_timer_work.work);
 
 	/* Message assembly timed out */
 	STRP_STATS_INCR(strp->stats.msg_timeouts);
@@ -505,9 +506,7 @@ int strp_init(struct strparser *strp, struct sock *sk,
 	strp->cb.read_sock_done = cb->read_sock_done ? : default_read_sock_done;
 	strp->cb.abort_parser = cb->abort_parser ? : strp_abort_strp;
 
-	setup_timer(&strp->msg_timer, strp_msg_timeout,
-		    (unsigned long)strp);
-
+	INIT_DELAYED_WORK(&strp->msg_timer_work, strp_msg_timeout);
 	INIT_WORK(&strp->work, strp_work);
 
 	return 0;
@@ -532,7 +531,7 @@ void strp_done(struct strparser *strp)
 {
 	WARN_ON(!strp->stopped);
 
-	del_timer_sync(&strp->msg_timer);
+	cancel_delayed_work_sync(&strp->msg_timer_work);
 	cancel_work_sync(&strp->work);
 
 	if (strp->skb_head) {
diff --git a/net/sunrpc/Makefile b/net/sunrpc/Makefile
index ea7ffa12e0f9..090658c3da12 100644
--- a/net/sunrpc/Makefile
+++ b/net/sunrpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Linux kernel SUN RPC
 #
diff --git a/net/sunrpc/auth_gss/Makefile b/net/sunrpc/auth_gss/Makefile
index 14e9e53e63d5..c374268b008f 100644
--- a/net/sunrpc/auth_gss/Makefile
+++ b/net/sunrpc/auth_gss/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for Linux kernel rpcsec_gss implementation
 #
diff --git a/net/sunrpc/auth_null.c b/net/sunrpc/auth_null.c
index 5f3d527dff65..75d72e109a04 100644
--- a/net/sunrpc/auth_null.c
+++ b/net/sunrpc/auth_null.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/net/sunrpc/auth_null.c
  *
diff --git a/net/sunrpc/auth_unix.c b/net/sunrpc/auth_unix.c
index 82337e1ec9cd..dafd6b870ba3 100644
--- a/net/sunrpc/auth_unix.c
+++ b/net/sunrpc/auth_unix.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/net/sunrpc/auth_unix.c
  *
diff --git a/net/sunrpc/debugfs.c b/net/sunrpc/debugfs.c
index c8fd0b6c1618..e980d2a493de 100644
--- a/net/sunrpc/debugfs.c
+++ b/net/sunrpc/debugfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * debugfs interface for sunrpc
  *
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
index 394ce523174c..7ec10b92bea1 100644
--- a/net/sunrpc/netns.h
+++ b/net/sunrpc/netns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUNRPC_NETNS_H__
 #define __SUNRPC_NETNS_H__
 
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index e741ec2b4d8e..898485e3ece4 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1333,7 +1333,7 @@ void xprt_release(struct rpc_task *task)
 		rpc_count_iostats(task, task->tk_client->cl_metrics);
 	spin_lock(&xprt->recv_lock);
 	if (!list_empty(&req->rq_list)) {
-		list_del(&req->rq_list);
+		list_del_init(&req->rq_list);
 		xprt_wait_on_pinned_rqst(req);
 	}
 	spin_unlock(&xprt->recv_lock);
@@ -1445,6 +1445,23 @@ out:
 	return xprt;
 }
 
+static void xprt_destroy_cb(struct work_struct *work)
+{
+	struct rpc_xprt *xprt =
+		container_of(work, struct rpc_xprt, task_cleanup);
+
+	rpc_xprt_debugfs_unregister(xprt);
+	rpc_destroy_wait_queue(&xprt->binding);
+	rpc_destroy_wait_queue(&xprt->pending);
+	rpc_destroy_wait_queue(&xprt->sending);
+	rpc_destroy_wait_queue(&xprt->backlog);
+	kfree(xprt->servername);
+	/*
+	 * Tear down transport state and free the rpc_xprt
+	 */
+	xprt->ops->destroy(xprt);
+}
+
 /**
  * xprt_destroy - destroy an RPC transport, killing off all requests.
  * @xprt: transport to destroy
@@ -1454,22 +1471,19 @@ static void xprt_destroy(struct rpc_xprt *xprt)
 {
 	dprintk("RPC:       destroying transport %p\n", xprt);
 
-	/* Exclude transport connect/disconnect handlers */
+	/*
+	 * Exclude transport connect/disconnect handlers and autoclose
+	 */
 	wait_on_bit_lock(&xprt->state, XPRT_LOCKED, TASK_UNINTERRUPTIBLE);
 
 	del_timer_sync(&xprt->timer);
 
-	rpc_xprt_debugfs_unregister(xprt);
-	rpc_destroy_wait_queue(&xprt->binding);
-	rpc_destroy_wait_queue(&xprt->pending);
-	rpc_destroy_wait_queue(&xprt->sending);
-	rpc_destroy_wait_queue(&xprt->backlog);
-	cancel_work_sync(&xprt->task_cleanup);
-	kfree(xprt->servername);
 	/*
-	 * Tear down transport state and free the rpc_xprt
+	 * Destroy sockets etc from the system workqueue so they can
+	 * safely flush receive work running on rpciod.
 	 */
-	xprt->ops->destroy(xprt);
+	INIT_WORK(&xprt->task_cleanup, xprt_destroy_cb);
+	schedule_work(&xprt->task_cleanup);
 }
 
 static void xprt_destroy_kref(struct kref *kref)
diff --git a/net/sunrpc/xprtmultipath.c b/net/sunrpc/xprtmultipath.c
index ae92a9e9ba52..e2d64c7138c3 100644
--- a/net/sunrpc/xprtmultipath.c
+++ b/net/sunrpc/xprtmultipath.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Multipath support for RPC
  *
diff --git a/net/sunrpc/xprtrdma/Makefile b/net/sunrpc/xprtrdma/Makefile
index b8213ddce2f2..8bf19e142b6b 100644
--- a/net/sunrpc/xprtrdma/Makefile
+++ b/net/sunrpc/xprtrdma/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SUNRPC_XPRT_RDMA) += rpcrdma.o
 
 rpcrdma-y := transport.o rpc_rdma.o verbs.o \
diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c
index d31d0ac5ada9..823a781ec89c 100644
--- a/net/sunrpc/xprtrdma/backchannel.c
+++ b/net/sunrpc/xprtrdma/backchannel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015 Oracle.  All rights reserved.
  *
diff --git a/net/sunrpc/xprtrdma/fmr_ops.c b/net/sunrpc/xprtrdma/fmr_ops.c
index 6c7151341194..fa759dd2b0f3 100644
--- a/net/sunrpc/xprtrdma/fmr_ops.c
+++ b/net/sunrpc/xprtrdma/fmr_ops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015 Oracle.  All rights reserved.
  * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index 5a936a6a31a3..35d7517ef0e6 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015 Oracle.  All rights reserved.
  * Copyright (c) 2003-2007 Network Appliance, Inc. All rights reserved.
@@ -401,7 +402,7 @@ frwr_op_map(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
 	if (unlikely(n != mw->mw_nents))
 		goto out_mapmr_err;
 
-	dprintk("RPC:       %s: Using frmr %p to map %u segments (%u bytes)\n",
+	dprintk("RPC:       %s: Using frmr %p to map %u segments (%llu bytes)\n",
 		__func__, frmr, mw->mw_nents, mr->length);
 
 	key = (u8)(mr->rkey & 0x000000FF);
diff --git a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
index ec37ad83b068..992594b7cc6b 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_backchannel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015 Oracle.  All rights reserved.
  *
diff --git a/net/sunrpc/xprtrdma/svc_rdma_rw.c b/net/sunrpc/xprtrdma/svc_rdma_rw.c
index 7dcda4597057..9bd04549a1ad 100644
--- a/net/sunrpc/xprtrdma/svc_rdma_rw.c
+++ b/net/sunrpc/xprtrdma/svc_rdma_rw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2016 Oracle.  All rights reserved.
  *
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 9b5de31aa429..4dad5da388d6 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * linux/net/sunrpc/xprtsock.c
  *
@@ -2203,7 +2204,7 @@ static void xs_udp_setup_socket(struct work_struct *work)
 	struct sock_xprt *transport =
 		container_of(work, struct sock_xprt, connect_worker.work);
 	struct rpc_xprt *xprt = &transport->xprt;
-	struct socket *sock = transport->sock;
+	struct socket *sock;
 	int status = -EIO;
 
 	sock = xs_create_sock(xprt, transport,
diff --git a/net/tipc/Makefile b/net/tipc/Makefile
index 31b9f9c52974..2bfaa9d4b403 100644
--- a/net/tipc/Makefile
+++ b/net/tipc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux TIPC layer
 #
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 7d99029df342..a140dd4a84af 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -233,7 +233,7 @@ static int tipc_bcast_xmit(struct net *net, struct sk_buff_head *pkts,
 	struct sk_buff_head xmitq;
 	int rc = 0;
 
-	__skb_queue_head_init(&xmitq);
+	skb_queue_head_init(&xmitq);
 	tipc_bcast_lock(net);
 	if (tipc_link_bc_peers(l))
 		rc = tipc_link_xmit(l, pkts, &xmitq);
@@ -263,7 +263,7 @@ static int tipc_rcast_xmit(struct net *net, struct sk_buff_head *pkts,
 	u32 dst, selector;
 
 	selector = msg_link_selector(buf_msg(skb_peek(pkts)));
-	__skb_queue_head_init(&_pkts);
+	skb_queue_head_init(&_pkts);
 
 	list_for_each_entry_safe(n, tmp, &dests->list, list) {
 		dst = n->value;
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 6ef379f004ac..17146c16ee2d 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -551,7 +551,7 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err)
 		return false;
 	if (msg_errcode(msg))
 		return false;
-	*err = -TIPC_ERR_NO_NAME;
+	*err = TIPC_ERR_NO_NAME;
 	if (skb_linearize(skb))
 		return false;
 	msg = buf_msg(skb);
@@ -568,6 +568,14 @@ bool tipc_msg_lookup_dest(struct net *net, struct sk_buff *skb, int *err)
 	msg_set_destnode(msg, dnode);
 	msg_set_destport(msg, dport);
 	*err = TIPC_OK;
+
+	if (!skb_cloned(skb))
+		return true;
+
+	/* Unclone buffer in case it was bundled */
+	if (pskb_expand_head(skb, BUF_HEADROOM, BUF_TAILROOM, GFP_ATOMIC))
+		return false;
+
 	return true;
 }
 
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index fa596fa71ba7..7d80040a37b6 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -639,7 +639,7 @@ sendpage_end:
 	return ret;
 }
 
-void tls_sw_free_resources(struct sock *sk)
+static void tls_sw_free_resources(struct sock *sk)
 {
 	struct tls_context *tls_ctx = tls_get_ctx(sk);
 	struct tls_sw_context *ctx = tls_sw_ctx(tls_ctx);
diff --git a/net/unix/Makefile b/net/unix/Makefile
index b663c607b1c6..ffd0a275c3a7 100644
--- a/net/unix/Makefile
+++ b/net/unix/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux unix domain socket layer.
 #
diff --git a/net/unix/diag.c b/net/unix/diag.c
index 4d9679701a6d..384c84e83462 100644
--- a/net/unix/diag.c
+++ b/net/unix/diag.c
@@ -257,6 +257,8 @@ static int unix_diag_get_exact(struct sk_buff *in_skb,
 	err = -ENOENT;
 	if (sk == NULL)
 		goto out_nosk;
+	if (!net_eq(sock_net(sk), net))
+		goto out;
 
 	err = sock_diag_check_cookie(sk, req->udiag_cookie);
 	if (err)
diff --git a/net/vmw_vsock/Makefile b/net/vmw_vsock/Makefile
index e63d574234a9..30a263320e4f 100644
--- a/net/vmw_vsock/Makefile
+++ b/net/vmw_vsock/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_VSOCKETS) += vsock.o
 obj-$(CONFIG_VMWARE_VMCI_VSOCKETS) += vmw_vsock_vmci_transport.o
 obj-$(CONFIG_VIRTIO_VSOCKETS) += vmw_vsock_virtio_transport.o
diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c
index 14ed5a344cdf..e21991fe883a 100644
--- a/net/vmw_vsock/hyperv_transport.c
+++ b/net/vmw_vsock/hyperv_transport.c
@@ -310,11 +310,15 @@ static void hvs_close_connection(struct vmbus_channel *chan)
 	struct sock *sk = get_per_channel_state(chan);
 	struct vsock_sock *vsk = vsock_sk(sk);
 
+	lock_sock(sk);
+
 	sk->sk_state = SS_UNCONNECTED;
 	sock_set_flag(sk, SOCK_DONE);
 	vsk->peer_shutdown |= SEND_SHUTDOWN | RCV_SHUTDOWN;
 
 	sk->sk_state_change(sk);
+
+	release_sock(sk);
 }
 
 static void hvs_open_connection(struct vmbus_channel *chan)
@@ -344,6 +348,8 @@ static void hvs_open_connection(struct vmbus_channel *chan)
 	if (!sk)
 		return;
 
+	lock_sock(sk);
+
 	if ((conn_from_host && sk->sk_state != VSOCK_SS_LISTEN) ||
 	    (!conn_from_host && sk->sk_state != SS_CONNECTING))
 		goto out;
@@ -395,9 +401,7 @@ static void hvs_open_connection(struct vmbus_channel *chan)
 
 		vsock_insert_connected(vnew);
 
-		lock_sock(sk);
 		vsock_enqueue_accept(sk, new);
-		release_sock(sk);
 	} else {
 		sk->sk_state = SS_CONNECTED;
 		sk->sk_socket->state = SS_CONNECTED;
@@ -410,6 +414,8 @@ static void hvs_open_connection(struct vmbus_channel *chan)
 out:
 	/* Release refcnt obtained when we called vsock_find_bound_socket() */
 	sock_put(sk);
+
+	release_sock(sk);
 }
 
 static u32 hvs_get_local_cid(void)
@@ -476,13 +482,21 @@ out:
 
 static void hvs_release(struct vsock_sock *vsk)
 {
+	struct sock *sk = sk_vsock(vsk);
 	struct hvsock *hvs = vsk->trans;
-	struct vmbus_channel *chan = hvs->chan;
+	struct vmbus_channel *chan;
 
+	lock_sock(sk);
+
+	sk->sk_state = SS_DISCONNECTING;
+	vsock_remove_sock(vsk);
+
+	release_sock(sk);
+
+	chan = hvs->chan;
 	if (chan)
 		hvs_shutdown(vsk, RCV_SHUTDOWN | SEND_SHUTDOWN);
 
-	vsock_remove_sock(vsk);
 }
 
 static void hvs_destruct(struct vsock_sock *vsk)
diff --git a/net/wimax/Makefile b/net/wimax/Makefile
index 8f1510d0cc2b..eb2db0d3b880 100644
--- a/net/wimax/Makefile
+++ b/net/wimax/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 obj-$(CONFIG_WIMAX)		+= wimax.o
 
diff --git a/net/wireless/Makefile b/net/wireless/Makefile
index d06e5015751a..b7c0300e0b08 100644
--- a/net/wireless/Makefile
+++ b/net/wireless/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_CFG80211) += cfg80211.o
 obj-$(CONFIG_LIB80211) += lib80211.o
 obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
diff --git a/net/wireless/ap.c b/net/wireless/ap.c
index 25666d3009be..63682176c96c 100644
--- a/net/wireless/ap.c
+++ b/net/wireless/ap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ieee80211.h>
 #include <linux/export.h>
 #include <net/cfg80211.h>
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index b8aa5a7d5c77..fad1b5baf8ff 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains helper code to handle channel
  * settings and keeping track of what is possible at
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 6e809325af3b..705835047f98 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Wireless configuration interface internals.
  *
diff --git a/net/wireless/debugfs.h b/net/wireless/debugfs.h
index 74fdd3811427..a8a135d94ab5 100644
--- a/net/wireless/debugfs.h
+++ b/net/wireless/debugfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CFG80211_DEBUGFS_H
 #define __CFG80211_DEBUGFS_H
 
diff --git a/net/wireless/ethtool.c b/net/wireless/ethtool.c
index e9e91298c70d..a9c0f368db5d 100644
--- a/net/wireless/ethtool.c
+++ b/net/wireless/ethtool.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/utsname.h>
 #include <net/cfg80211.h>
 #include "core.h"
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 10bf040a0982..413d4f4e6334 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Some IBSS support code for cfg80211.
  *
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index 421a6b80ec62..51aa55618ef7 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/ieee80211.h>
 #include <linux/export.h>
 #include <net/cfg80211.h>
diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index d8df7a5180a0..e7c64a8dce54 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cfg80211 MLME SAP interface
  *
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 0df8023f480b..eb866647a27a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -549,6 +549,14 @@ nl80211_nan_srf_policy[NL80211_NAN_SRF_ATTR_MAX + 1] = {
 	[NL80211_NAN_SRF_MAC_ADDRS] = { .type = NLA_NESTED },
 };
 
+/* policy for packet pattern attributes */
+static const struct nla_policy
+nl80211_packet_pattern_policy[MAX_NL80211_PKTPAT + 1] = {
+	[NL80211_PKTPAT_MASK] = { .type = NLA_BINARY, },
+	[NL80211_PKTPAT_PATTERN] = { .type = NLA_BINARY, },
+	[NL80211_PKTPAT_OFFSET] = { .type = NLA_U32 },
+};
+
 static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
 				     struct netlink_callback *cb,
 				     struct cfg80211_registered_device **rdev,
@@ -9987,6 +9995,9 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info)
 		if (err)
 			return err;
 
+		if (!setup.chandef.chan)
+			return -EINVAL;
+
 		err = validate_beacon_tx_rate(rdev, setup.chandef.chan->band,
 					      &setup.beacon_rate);
 		if (err)
@@ -10529,7 +10540,8 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
 			u8 *mask_pat;
 
 			nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
-					 NULL, info->extack);
+					 nl80211_packet_pattern_policy,
+					 info->extack);
 			err = -EINVAL;
 			if (!pat_tb[NL80211_PKTPAT_MASK] ||
 			    !pat_tb[NL80211_PKTPAT_PATTERN])
@@ -10778,7 +10790,8 @@ static int nl80211_parse_coalesce_rule(struct cfg80211_registered_device *rdev,
 			    rem) {
 		u8 *mask_pat;
 
-		nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat, NULL, NULL);
+		nla_parse_nested(pat_tb, MAX_NL80211_PKTPAT, pat,
+				 nl80211_packet_pattern_policy, NULL);
 		if (!pat_tb[NL80211_PKTPAT_MASK] ||
 		    !pat_tb[NL80211_PKTPAT_PATTERN])
 			return -EINVAL;
@@ -10903,6 +10916,9 @@ static int nl80211_set_rekey_data(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		return err;
 
+	if (!tb[NL80211_REKEY_DATA_REPLAY_CTR] || !tb[NL80211_REKEY_DATA_KEK] ||
+	    !tb[NL80211_REKEY_DATA_KCK])
+		return -EINVAL;
 	if (nla_len(tb[NL80211_REKEY_DATA_REPLAY_CTR]) != NL80211_REPLAY_CTR_LEN)
 		return -ERANGE;
 	if (nla_len(tb[NL80211_REKEY_DATA_KEK]) != NL80211_KEK_LEN)
@@ -14185,7 +14201,7 @@ static bool __nl80211_unexpected_frame(struct net_device *dev, u8 cmd,
 	struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 	struct sk_buff *msg;
 	void *hdr;
-	u32 nlportid = ACCESS_ONCE(wdev->ap_unexpected_nlportid);
+	u32 nlportid = READ_ONCE(wdev->ap_unexpected_nlportid);
 
 	if (!nlportid)
 		return false;
diff --git a/net/wireless/nl80211.h b/net/wireless/nl80211.h
index b96933322077..fc415c8f7aac 100644
--- a/net/wireless/nl80211.h
+++ b/net/wireless/nl80211.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NET_WIRELESS_NL80211_H
 #define __NET_WIRELESS_NL80211_H
 
diff --git a/net/wireless/rdev-ops.h b/net/wireless/rdev-ops.h
index ce23d7d49960..0c06240d25af 100644
--- a/net/wireless/rdev-ops.h
+++ b/net/wireless/rdev-ops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CFG80211_RDEV_OPS
 #define __CFG80211_RDEV_OPS
 
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index 9f0901f3e42b..f6c5fe482506 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cfg80211 scan result handling
  *
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 0a49b88070d0..3dd05a08c60a 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * SME code for cfg80211
  * both driver SME event handling and the SME implementation
@@ -522,11 +523,6 @@ static int cfg80211_sme_connect(struct wireless_dev *wdev,
 		return -EOPNOTSUPP;
 
 	if (wdev->current_bss) {
-		if (!prev_bssid)
-			return -EALREADY;
-		if (prev_bssid &&
-		    !ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid))
-			return -ENOTCONN;
 		cfg80211_unhold_bss(wdev->current_bss);
 		cfg80211_put_bss(wdev->wiphy, &wdev->current_bss->pub);
 		wdev->current_bss = NULL;
@@ -1063,11 +1059,35 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 
 	ASSERT_WDEV_LOCK(wdev);
 
-	if (WARN_ON(wdev->connect_keys)) {
-		kzfree(wdev->connect_keys);
-		wdev->connect_keys = NULL;
+	/*
+	 * If we have an ssid_len, we're trying to connect or are
+	 * already connected, so reject a new SSID unless it's the
+	 * same (which is the case for re-association.)
+	 */
+	if (wdev->ssid_len &&
+	    (wdev->ssid_len != connect->ssid_len ||
+	     memcmp(wdev->ssid, connect->ssid, wdev->ssid_len)))
+		return -EALREADY;
+
+	/*
+	 * If connected, reject (re-)association unless prev_bssid
+	 * matches the current BSSID.
+	 */
+	if (wdev->current_bss) {
+		if (!prev_bssid)
+			return -EALREADY;
+		if (!ether_addr_equal(prev_bssid, wdev->current_bss->pub.bssid))
+			return -ENOTCONN;
 	}
 
+	/*
+	 * Reject if we're in the process of connecting with WEP,
+	 * this case isn't very interesting and trying to handle
+	 * it would make the code much more complex.
+	 */
+	if (wdev->connect_keys)
+		return -EINPROGRESS;
+
 	cfg80211_oper_and_ht_capa(&connect->ht_capa_mask,
 				  rdev->wiphy.ht_capa_mod_mask);
 
@@ -1118,7 +1138,12 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
 
 	if (err) {
 		wdev->connect_keys = NULL;
-		wdev->ssid_len = 0;
+		/*
+		 * This could be reassoc getting refused, don't clear
+		 * ssid_len in that case.
+		 */
+		if (!wdev->current_bss)
+			wdev->ssid_len = 0;
 		return err;
 	}
 
@@ -1145,6 +1170,14 @@ int cfg80211_disconnect(struct cfg80211_registered_device *rdev,
 	else if (wdev->ssid_len)
 		err = rdev_disconnect(rdev, dev, reason);
 
+	/*
+	 * Clear ssid_len unless we actually were fully connected,
+	 * in which case cfg80211_disconnected() will take care of
+	 * this later.
+	 */
+	if (!wdev->current_bss)
+		wdev->ssid_len = 0;
+
 	return err;
 }
 
diff --git a/net/wireless/sysfs.h b/net/wireless/sysfs.h
index b533ed71daff..7b454c2de9b7 100644
--- a/net/wireless/sysfs.h
+++ b/net/wireless/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __WIRELESS_SYSFS_H
 #define __WIRELESS_SYSFS_H
 
diff --git a/net/wireless/trace.h b/net/wireless/trace.h
index 0f8db41eaddb..f3353fe5b35b 100644
--- a/net/wireless/trace.h
+++ b/net/wireless/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM cfg80211
 
diff --git a/net/wireless/util.c b/net/wireless/util.c
index bcb1284c3415..c1238d582fd1 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Wireless utility functions
  *
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 5d4a02c7979b..7ca04a7de85a 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cfg80211 - wext compat code
  *
diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c
index c434f193f39a..c67d7a82ab13 100644
--- a/net/wireless/wext-sme.c
+++ b/net/wireless/wext-sme.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cfg80211 wext compat for managed mode.
  *
diff --git a/net/x25/Makefile b/net/x25/Makefile
index a2c34ab6f194..5dd544a231f2 100644
--- a/net/x25/Makefile
+++ b/net/x25/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the Linux X.25 Packet layer.
 #
diff --git a/net/x25/sysctl_net_x25.c b/net/x25/sysctl_net_x25.c
index ba078c85f0a1..e9802afa43d0 100644
--- a/net/x25/sysctl_net_x25.c
+++ b/net/x25/sysctl_net_x25.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* -*- linux-c -*-
  * sysctl_net_x25.c: sysctl interface to net X.25 subsystem.
  *
diff --git a/net/xfrm/Makefile b/net/xfrm/Makefile
index 55b2ac300995..0bd2465a8c5a 100644
--- a/net/xfrm/Makefile
+++ b/net/xfrm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the XFRM subsystem.
 #
diff --git a/net/xfrm/xfrm_device.c b/net/xfrm/xfrm_device.c
index acf00104ef31..30e5746085b8 100644
--- a/net/xfrm/xfrm_device.c
+++ b/net/xfrm/xfrm_device.c
@@ -91,6 +91,7 @@ int xfrm_dev_state_add(struct net *net, struct xfrm_state *x,
 	}
 
 	if (!dev->xfrmdev_ops || !dev->xfrmdev_ops->xdo_dev_state_add) {
+		xso->dev = NULL;
 		dev_put(dev);
 		return 0;
 	}
diff --git a/net/xfrm/xfrm_hash.c b/net/xfrm/xfrm_hash.c
index 1e98bc0fe0a5..2ad33ce1ea17 100644
--- a/net/xfrm/xfrm_hash.c
+++ b/net/xfrm/xfrm_hash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* xfrm_hash.c: Common hash table code.
  *
  * Copyright (C) 2006 David S. Miller (davem@davemloft.net)
diff --git a/net/xfrm/xfrm_hash.h b/net/xfrm/xfrm_hash.h
index eaea9c4fb3b0..61be810389d8 100644
--- a/net/xfrm/xfrm_hash.h
+++ b/net/xfrm/xfrm_hash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _XFRM_HASH_H
 #define _XFRM_HASH_H
 
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 2515cd2bc5db..347ab31574d5 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * xfrm_input.c
  *
@@ -265,8 +266,6 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 		goto lock;
 	}
 
-	daddr = (xfrm_address_t *)(skb_network_header(skb) +
-				   XFRM_SPI_SKB_CB(skb)->daddroff);
 	family = XFRM_SPI_SKB_CB(skb)->family;
 
 	/* if tunnel is present override skb->mark value with tunnel i_key */
@@ -293,6 +292,8 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
 		goto drop;
 	}
 
+	daddr = (xfrm_address_t *)(skb_network_header(skb) +
+				   XFRM_SPI_SKB_CB(skb)->daddroff);
 	do {
 		if (skb->sp->len == XFRM_MAX_DEPTH) {
 			XFRM_INC_STATS(net, LINUX_MIB_XFRMINBUFFERERROR);
@@ -429,7 +430,8 @@ resume:
 	nf_reset(skb);
 
 	if (decaps) {
-		skb->sp->olen = 0;
+		if (skb->sp)
+			skb->sp->olen = 0;
 		skb_dst_drop(skb);
 		gro_cells_receive(&gro_cells, skb);
 		return 0;
@@ -440,7 +442,8 @@ resume:
 
 		err = x->inner_mode->afinfo->transport_finish(skb, xfrm_gro || async);
 		if (xfrm_gro) {
-			skb->sp->olen = 0;
+			if (skb->sp)
+				skb->sp->olen = 0;
 			skb_dst_drop(skb);
 			gro_cells_receive(&gro_cells, skb);
 			return err;
diff --git a/net/xfrm/xfrm_output.c b/net/xfrm/xfrm_output.c
index 31a2e6d34dba..73ad8c8ef344 100644
--- a/net/xfrm/xfrm_output.c
+++ b/net/xfrm/xfrm_output.c
@@ -105,6 +105,9 @@ static int xfrm_output_one(struct sk_buff *skb, int err)
 		if (xfrm_offload(skb)) {
 			x->type_offload->encap(x, skb);
 		} else {
+			/* Inner headers are invalid now. */
+			skb->encapsulation = 0;
+
 			err = x->type->output(x, skb);
 			if (err == -EINPROGRESS)
 				goto out;
@@ -208,7 +211,6 @@ int xfrm_output(struct sock *sk, struct sk_buff *skb)
 	int err;
 
 	secpath_reset(skb);
-	skb->encapsulation = 0;
 
 	if (xfrm_dev_offload_ok(skb, x)) {
 		struct sec_path *sp;
diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index f06253969972..6eb228a70131 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1361,36 +1361,29 @@ xfrm_tmpl_resolve_one(struct xfrm_policy *policy, const struct flowi *fl,
 	struct net *net = xp_net(policy);
 	int nx;
 	int i, error;
-	xfrm_address_t *daddr = xfrm_flowi_daddr(fl, family);
-	xfrm_address_t *saddr = xfrm_flowi_saddr(fl, family);
 	xfrm_address_t tmp;
 
 	for (nx = 0, i = 0; i < policy->xfrm_nr; i++) {
 		struct xfrm_state *x;
-		xfrm_address_t *remote = daddr;
-		xfrm_address_t *local  = saddr;
+		xfrm_address_t *local;
+		xfrm_address_t *remote;
 		struct xfrm_tmpl *tmpl = &policy->xfrm_vec[i];
 
-		if (tmpl->mode == XFRM_MODE_TUNNEL ||
-		    tmpl->mode == XFRM_MODE_BEET) {
-			remote = &tmpl->id.daddr;
-			local = &tmpl->saddr;
-			if (xfrm_addr_any(local, tmpl->encap_family)) {
-				error = xfrm_get_saddr(net, fl->flowi_oif,
-						       &tmp, remote,
-						       tmpl->encap_family, 0);
-				if (error)
-					goto fail;
-				local = &tmp;
-			}
+		remote = &tmpl->id.daddr;
+		local = &tmpl->saddr;
+		if (xfrm_addr_any(local, tmpl->encap_family)) {
+			error = xfrm_get_saddr(net, fl->flowi_oif,
+					       &tmp, remote,
+					       tmpl->encap_family, 0);
+			if (error)
+				goto fail;
+			local = &tmp;
 		}
 
 		x = xfrm_state_find(remote, local, fl, tmpl, policy, &error, family);
 
 		if (x && x->km.state == XFRM_STATE_VALID) {
 			xfrm[nx++] = x;
-			daddr = remote;
-			saddr = local;
 			continue;
 		}
 		if (x) {
@@ -1573,6 +1566,14 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
 			goto put_states;
 		}
 
+		if (!dst_prev)
+			dst0 = dst1;
+		else
+			/* Ref count is taken during xfrm_alloc_dst()
+			 * No need to do dst_clone() on dst1
+			 */
+			dst_prev->child = dst1;
+
 		if (xfrm[i]->sel.family == AF_UNSPEC) {
 			inner_mode = xfrm_ip2inner_mode(xfrm[i],
 							xfrm_af2proto(family));
@@ -1584,14 +1585,6 @@ static struct dst_entry *xfrm_bundle_create(struct xfrm_policy *policy,
 		} else
 			inner_mode = xfrm[i]->inner_mode;
 
-		if (!dst_prev)
-			dst0 = dst1;
-		else
-			/* Ref count is taken during xfrm_alloc_dst()
-			 * No need to do dst_clone() on dst1
-			 */
-			dst_prev->child = dst1;
-
 		xdst->route = dst;
 		dst_copy_metrics(dst1, dst);
 
@@ -1787,19 +1780,23 @@ void xfrm_policy_cache_flush(void)
 	put_online_cpus();
 }
 
-static bool xfrm_pol_dead(struct xfrm_dst *xdst)
+static bool xfrm_xdst_can_reuse(struct xfrm_dst *xdst,
+				struct xfrm_state * const xfrm[],
+				int num)
 {
-	unsigned int num_pols = xdst->num_pols;
-	unsigned int pol_dead = 0, i;
+	const struct dst_entry *dst = &xdst->u.dst;
+	int i;
 
-	for (i = 0; i < num_pols; i++)
-		pol_dead |= xdst->pols[i]->walk.dead;
+	if (xdst->num_xfrms != num)
+		return false;
 
-	/* Mark DST_OBSOLETE_DEAD to fail the next xfrm_dst_check() */
-	if (pol_dead)
-		xdst->u.dst.obsolete = DST_OBSOLETE_DEAD;
+	for (i = 0; i < num; i++) {
+		if (!dst || dst->xfrm != xfrm[i])
+			return false;
+		dst = dst->child;
+	}
 
-	return pol_dead;
+	return xfrm_bundle_ok(xdst);
 }
 
 static struct xfrm_dst *
@@ -1813,26 +1810,28 @@ xfrm_resolve_and_create_bundle(struct xfrm_policy **pols, int num_pols,
 	struct dst_entry *dst;
 	int err;
 
+	/* Try to instantiate a bundle */
+	err = xfrm_tmpl_resolve(pols, num_pols, fl, xfrm, family);
+	if (err <= 0) {
+		if (err != 0 && err != -EAGAIN)
+			XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR);
+		return ERR_PTR(err);
+	}
+
 	xdst = this_cpu_read(xfrm_last_dst);
 	if (xdst &&
 	    xdst->u.dst.dev == dst_orig->dev &&
 	    xdst->num_pols == num_pols &&
-	    !xfrm_pol_dead(xdst) &&
 	    memcmp(xdst->pols, pols,
 		   sizeof(struct xfrm_policy *) * num_pols) == 0 &&
-	    xfrm_bundle_ok(xdst)) {
+	    xfrm_xdst_can_reuse(xdst, xfrm, err)) {
 		dst_hold(&xdst->u.dst);
+		while (err > 0)
+			xfrm_state_put(xfrm[--err]);
 		return xdst;
 	}
 
 	old = xdst;
-	/* Try to instantiate a bundle */
-	err = xfrm_tmpl_resolve(pols, num_pols, fl, xfrm, family);
-	if (err <= 0) {
-		if (err != 0 && err != -EAGAIN)
-			XFRM_INC_STATS(net, LINUX_MIB_XFRMOUTPOLERROR);
-		return ERR_PTR(err);
-	}
 
 	dst = xfrm_bundle_create(pols[0], xfrm, err, fl, dst_orig);
 	if (IS_ERR(dst)) {
@@ -2076,7 +2075,6 @@ make_dummy_bundle:
 	xdst->num_xfrms = num_xfrms;
 	memcpy(xdst->pols, pols, sizeof(struct xfrm_policy *) * num_pols);
 
-	dst_hold(&xdst->u.dst);
 	return xdst;
 
 inc_error:
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 0dab1cd79ce4..1f5cee2269af 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -732,12 +732,12 @@ restart:
 			}
 		}
 	}
+out:
+	spin_unlock_bh(&net->xfrm.xfrm_state_lock);
 	if (cnt) {
 		err = 0;
 		xfrm_policy_cache_flush();
 	}
-out:
-	spin_unlock_bh(&net->xfrm.xfrm_state_lock);
 	return err;
 }
 EXPORT_SYMBOL(xfrm_state_flush);
@@ -2069,6 +2069,7 @@ int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen
 	if (err >= 0) {
 		xfrm_sk_policy_insert(sk, err, pol);
 		xfrm_pol_put(pol);
+		__sk_dst_reset(sk);
 		err = 0;
 	}
 
diff --git a/net/xfrm/xfrm_sysctl.c b/net/xfrm/xfrm_sysctl.c
index 35a7e794ad04..0c6c5ef65f9d 100644
--- a/net/xfrm/xfrm_sysctl.c
+++ b/net/xfrm/xfrm_sysctl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/sysctl.h>
 #include <linux/slab.h>
 #include <net/net_namespace.h>
diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
index 2bfbd9121e3b..e44a0fed48dd 100644
--- a/net/xfrm/xfrm_user.c
+++ b/net/xfrm/xfrm_user.c
@@ -657,6 +657,7 @@ static int xfrm_add_sa(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 	if (err < 0) {
 		x->km.state = XFRM_STATE_DEAD;
+		xfrm_dev_state_delete(x);
 		__xfrm_state_put(x);
 		goto out;
 	}
@@ -1692,32 +1693,34 @@ static int dump_one_policy(struct xfrm_policy *xp, int dir, int count, void *ptr
 
 static int xfrm_dump_policy_done(struct netlink_callback *cb)
 {
-	struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *) &cb->args[1];
+	struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *)cb->args;
 	struct net *net = sock_net(cb->skb->sk);
 
 	xfrm_policy_walk_done(walk, net);
 	return 0;
 }
 
+static int xfrm_dump_policy_start(struct netlink_callback *cb)
+{
+	struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *)cb->args;
+
+	BUILD_BUG_ON(sizeof(*walk) > sizeof(cb->args));
+
+	xfrm_policy_walk_init(walk, XFRM_POLICY_TYPE_ANY);
+	return 0;
+}
+
 static int xfrm_dump_policy(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct net *net = sock_net(skb->sk);
-	struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *) &cb->args[1];
+	struct xfrm_policy_walk *walk = (struct xfrm_policy_walk *)cb->args;
 	struct xfrm_dump_info info;
 
-	BUILD_BUG_ON(sizeof(struct xfrm_policy_walk) >
-		     sizeof(cb->args) - sizeof(cb->args[0]));
-
 	info.in_skb = cb->skb;
 	info.out_skb = skb;
 	info.nlmsg_seq = cb->nlh->nlmsg_seq;
 	info.nlmsg_flags = NLM_F_MULTI;
 
-	if (!cb->args[0]) {
-		cb->args[0] = 1;
-		xfrm_policy_walk_init(walk, XFRM_POLICY_TYPE_ANY);
-	}
-
 	(void) xfrm_policy_walk(net, walk, dump_one_policy, &info);
 
 	return skb->len;
@@ -2473,6 +2476,7 @@ static const struct nla_policy xfrma_spd_policy[XFRMA_SPD_MAX+1] = {
 
 static const struct xfrm_link {
 	int (*doit)(struct sk_buff *, struct nlmsghdr *, struct nlattr **);
+	int (*start)(struct netlink_callback *);
 	int (*dump)(struct sk_buff *, struct netlink_callback *);
 	int (*done)(struct netlink_callback *);
 	const struct nla_policy *nla_pol;
@@ -2486,6 +2490,7 @@ static const struct xfrm_link {
 	[XFRM_MSG_NEWPOLICY   - XFRM_MSG_BASE] = { .doit = xfrm_add_policy    },
 	[XFRM_MSG_DELPOLICY   - XFRM_MSG_BASE] = { .doit = xfrm_get_policy    },
 	[XFRM_MSG_GETPOLICY   - XFRM_MSG_BASE] = { .doit = xfrm_get_policy,
+						   .start = xfrm_dump_policy_start,
 						   .dump = xfrm_dump_policy,
 						   .done = xfrm_dump_policy_done },
 	[XFRM_MSG_ALLOCSPI    - XFRM_MSG_BASE] = { .doit = xfrm_alloc_userspi },
@@ -2538,6 +2543,7 @@ static int xfrm_user_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh,
 
 		{
 			struct netlink_dump_control c = {
+				.start = link->start,
 				.dump = link->dump,
 				.done = link->done,
 			};
diff --git a/samples/auxdisplay/Makefile b/samples/auxdisplay/Makefile
index 05e471feb6e5..0273bab27233 100644
--- a/samples/auxdisplay/Makefile
+++ b/samples/auxdisplay/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC := $(CROSS_COMPILE)gcc
 CFLAGS := -I../../usr/include
 
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index cf17c7932a6e..9b4a66e3363e 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # kbuild trick to avoid linker error. Can be omitted if a module is built.
 obj- := dummy.o
 
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
index 6aa50098dfb8..2325d7ad76df 100644
--- a/samples/bpf/bpf_load.c
+++ b/samples/bpf/bpf_load.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/samples/bpf/bpf_load.h b/samples/bpf/bpf_load.h
index 453e3226b4ce..7d57a4248893 100644
--- a/samples/bpf/bpf_load.h
+++ b/samples/bpf/bpf_load.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BPF_LOAD_H
 #define __BPF_LOAD_H
 
diff --git a/samples/bpf/cgroup_helpers.c b/samples/bpf/cgroup_helpers.c
index 9d1be9426401..09afaddfc9ba 100644
--- a/samples/bpf/cgroup_helpers.c
+++ b/samples/bpf/cgroup_helpers.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <sched.h>
 #include <sys/mount.h>
diff --git a/samples/bpf/cgroup_helpers.h b/samples/bpf/cgroup_helpers.h
index 78c55207b6bd..06485e0002b3 100644
--- a/samples/bpf/cgroup_helpers.h
+++ b/samples/bpf/cgroup_helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CGROUP_HELPERS_H
 #define __CGROUP_HELPERS_H
 #include <errno.h>
diff --git a/samples/bpf/libbpf.h b/samples/bpf/libbpf.h
index 8ab36a04c174..18bfee5aab6b 100644
--- a/samples/bpf/libbpf.h
+++ b/samples/bpf/libbpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* eBPF mini library */
 #ifndef __LIBBPF_H
 #define __LIBBPF_H
diff --git a/samples/bpf/lwt_len_hist.sh b/samples/bpf/lwt_len_hist.sh
index 7d567744c7fa..090b96eaf7f7 100644
--- a/samples/bpf/lwt_len_hist.sh
+++ b/samples/bpf/lwt_len_hist.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 NS1=lwt_ns1
 VETH0=tst_lwt1a
diff --git a/samples/bpf/lwt_len_hist_user.c b/samples/bpf/lwt_len_hist_user.c
index ec8f3bbcbef3..7fcb94c09112 100644
--- a/samples/bpf/lwt_len_hist_user.c
+++ b/samples/bpf/lwt_len_hist_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/unistd.h>
 #include <linux/bpf.h>
 
diff --git a/samples/bpf/run_cookie_uid_helper_example.sh b/samples/bpf/run_cookie_uid_helper_example.sh
index f898cfa2b1aa..fc6bc0451ab4 100755
--- a/samples/bpf/run_cookie_uid_helper_example.sh
+++ b/samples/bpf/run_cookie_uid_helper_example.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 local_dir="$(pwd)"
 root_dir=$local_dir/../..
 mnt_dir=$(mktemp -d --tmp)
diff --git a/samples/bpf/sock_example.h b/samples/bpf/sock_example.h
index d8014065d479..772d5dad8465 100644
--- a/samples/bpf/sock_example.h
+++ b/samples/bpf/sock_example.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <stdlib.h>
 #include <stdio.h>
 #include <linux/unistd.h>
diff --git a/samples/bpf/sockex1_user.c b/samples/bpf/sockex1_user.c
index 6cd2feb3e9b3..2be935c2627d 100644
--- a/samples/bpf/sockex1_user.c
+++ b/samples/bpf/sockex1_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <assert.h>
 #include <linux/bpf.h>
diff --git a/samples/bpf/sockex2_user.c b/samples/bpf/sockex2_user.c
index 0e0207c90841..44fe0805b087 100644
--- a/samples/bpf/sockex2_user.c
+++ b/samples/bpf/sockex2_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <assert.h>
 #include <linux/bpf.h>
diff --git a/samples/bpf/sockex3_user.c b/samples/bpf/sockex3_user.c
index 877ecf8fc5ac..495ee02e2fb7 100644
--- a/samples/bpf/sockex3_user.c
+++ b/samples/bpf/sockex3_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <assert.h>
 #include <linux/bpf.h>
diff --git a/samples/bpf/spintest_user.c b/samples/bpf/spintest_user.c
index 80676c25fa50..3d736219a31c 100644
--- a/samples/bpf/spintest_user.c
+++ b/samples/bpf/spintest_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <unistd.h>
 #include <linux/bpf.h>
diff --git a/samples/bpf/syscall_nrs.c b/samples/bpf/syscall_nrs.c
index ce2a30b11248..516e255cbe8f 100644
--- a/samples/bpf/syscall_nrs.c
+++ b/samples/bpf/syscall_nrs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <uapi/linux/unistd.h>
 #include <linux/kbuild.h>
 
diff --git a/samples/bpf/tc_l2_redirect.sh b/samples/bpf/tc_l2_redirect.sh
index 80a05591a140..37d95ef3c20f 100755
--- a/samples/bpf/tc_l2_redirect.sh
+++ b/samples/bpf/tc_l2_redirect.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 [[ -z $TC ]] && TC='tc'
 [[ -z $IP ]] && IP='ip'
diff --git a/samples/bpf/test_cgrp2_sock.sh b/samples/bpf/test_cgrp2_sock.sh
index a81f38eef417..8ee0371a100a 100755
--- a/samples/bpf/test_cgrp2_sock.sh
+++ b/samples/bpf/test_cgrp2_sock.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 # Test various socket options that can be set by attaching programs to cgroups.
 
diff --git a/samples/bpf/test_cgrp2_sock2.c b/samples/bpf/test_cgrp2_sock2.c
index db036077b644..e53f1f6f0867 100644
--- a/samples/bpf/test_cgrp2_sock2.c
+++ b/samples/bpf/test_cgrp2_sock2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* eBPF example program:
  *
  * - Loads eBPF program
diff --git a/samples/bpf/test_cgrp2_sock2.sh b/samples/bpf/test_cgrp2_sock2.sh
index 891f12a0e26f..fc4e64d00cb3 100755
--- a/samples/bpf/test_cgrp2_sock2.sh
+++ b/samples/bpf/test_cgrp2_sock2.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 function config_device {
 	ip netns add at_ns0
diff --git a/samples/bpf/test_cgrp2_tc.sh b/samples/bpf/test_cgrp2_tc.sh
index 0b119eeaf85c..12faf5847e22 100755
--- a/samples/bpf/test_cgrp2_tc.sh
+++ b/samples/bpf/test_cgrp2_tc.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 MY_DIR=$(dirname $0)
 # Details on the bpf prog
diff --git a/samples/bpf/test_cls_bpf.sh b/samples/bpf/test_cls_bpf.sh
index 0365d5ee512c..aaddd67b37ff 100755
--- a/samples/bpf/test_cls_bpf.sh
+++ b/samples/bpf/test_cls_bpf.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 function pktgen {
     ../pktgen/pktgen_bench_xmit_mode_netif_receive.sh -i $IFC -s 64 \
diff --git a/samples/bpf/test_ipip.sh b/samples/bpf/test_ipip.sh
index 196925403ab4..9e507c305c6e 100755
--- a/samples/bpf/test_ipip.sh
+++ b/samples/bpf/test_ipip.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 function config_device {
 	ip netns add at_ns0
diff --git a/samples/bpf/test_lwt_bpf.sh b/samples/bpf/test_lwt_bpf.sh
index a695ae268c40..65a976058dd3 100644
--- a/samples/bpf/test_lwt_bpf.sh
+++ b/samples/bpf/test_lwt_bpf.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 # Uncomment to see generated bytecode
 #VERBOSE=verbose
diff --git a/samples/bpf/test_probe_write_user_user.c b/samples/bpf/test_probe_write_user_user.c
index b5bf178a6ecc..bf8e3a9f3067 100644
--- a/samples/bpf/test_probe_write_user_user.c
+++ b/samples/bpf/test_probe_write_user_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <assert.h>
 #include <linux/bpf.h>
diff --git a/samples/bpf/test_tunnel_bpf.sh b/samples/bpf/test_tunnel_bpf.sh
index 410052d9fc37..312e1722a39f 100755
--- a/samples/bpf/test_tunnel_bpf.sh
+++ b/samples/bpf/test_tunnel_bpf.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # In Namespace 0 (at_ns0) using native tunnel
 # Overlay IP: 10.1.1.100
 # local 192.16.1.100 remote 192.16.1.200
diff --git a/samples/bpf/tracex1_user.c b/samples/bpf/tracex1_user.c
index 31a48183beea..3dcb475fb135 100644
--- a/samples/bpf/tracex1_user.c
+++ b/samples/bpf/tracex1_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <linux/bpf.h>
 #include <unistd.h>
diff --git a/samples/bpf/tracex2_user.c b/samples/bpf/tracex2_user.c
index 7321a3f253c9..efb5e61918df 100644
--- a/samples/bpf/tracex2_user.c
+++ b/samples/bpf/tracex2_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
diff --git a/samples/bpf/tracex5_user.c b/samples/bpf/tracex5_user.c
index 36b5925bb137..4e2774b731f0 100644
--- a/samples/bpf/tracex5_user.c
+++ b/samples/bpf/tracex5_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <linux/bpf.h>
 #include <unistd.h>
diff --git a/samples/bpf/tracex6_user.c b/samples/bpf/tracex6_user.c
index a05a99a0752f..a8c22dcf8e4e 100644
--- a/samples/bpf/tracex6_user.c
+++ b/samples/bpf/tracex6_user.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 
 #include <assert.h>
diff --git a/samples/configfs/configfs_sample.c b/samples/configfs/configfs_sample.c
index 1ea33119e532..004a4e201476 100644
--- a/samples/configfs/configfs_sample.c
+++ b/samples/configfs/configfs_sample.c
@@ -115,7 +115,7 @@ static struct configfs_attribute *childless_attrs[] = {
 	NULL,
 };
 
-static struct config_item_type childless_type = {
+static const struct config_item_type childless_type = {
 	.ct_attrs	= childless_attrs,
 	.ct_owner	= THIS_MODULE,
 };
@@ -193,7 +193,7 @@ static struct configfs_item_operations simple_child_item_ops = {
 	.release		= simple_child_release,
 };
 
-static struct config_item_type simple_child_type = {
+static const struct config_item_type simple_child_type = {
 	.ct_item_ops	= &simple_child_item_ops,
 	.ct_attrs	= simple_child_attrs,
 	.ct_owner	= THIS_MODULE,
@@ -261,7 +261,7 @@ static struct configfs_group_operations simple_children_group_ops = {
 	.make_item	= simple_children_make_item,
 };
 
-static struct config_item_type simple_children_type = {
+static const struct config_item_type simple_children_type = {
 	.ct_item_ops	= &simple_children_item_ops,
 	.ct_group_ops	= &simple_children_group_ops,
 	.ct_attrs	= simple_children_attrs,
@@ -331,7 +331,7 @@ static struct configfs_group_operations group_children_group_ops = {
 	.make_group	= group_children_make_group,
 };
 
-static struct config_item_type group_children_type = {
+static const struct config_item_type group_children_type = {
 	.ct_group_ops	= &group_children_group_ops,
 	.ct_attrs	= group_children_attrs,
 	.ct_owner	= THIS_MODULE,
diff --git a/samples/connector/Makefile b/samples/connector/Makefile
index 91762d946a53..fe3c8542ae4a 100644
--- a/samples/connector/Makefile
+++ b/samples/connector/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SAMPLE_CONNECTOR) += cn_test.o
 
 # List of programs to build
diff --git a/samples/connector/cn_test.c b/samples/connector/cn_test.c
index d12cc944b696..95cd06f4ec1e 100644
--- a/samples/connector/cn_test.c
+++ b/samples/connector/cn_test.c
@@ -125,12 +125,12 @@ static int cn_test_want_notify(void)
 #endif
 
 static u32 cn_test_timer_counter;
-static void cn_test_timer_func(unsigned long __data)
+static void cn_test_timer_func(struct timer_list *unused)
 {
 	struct cn_msg *m;
 	char data[32];
 
-	pr_debug("%s: timer fired with data %lu\n", __func__, __data);
+	pr_debug("%s: timer fired\n", __func__);
 
 	m = kzalloc(sizeof(*m) + sizeof(data), GFP_ATOMIC);
 	if (m) {
@@ -168,7 +168,7 @@ static int cn_test_init(void)
 		goto err_out;
 	}
 
-	setup_timer(&cn_test_timer, cn_test_timer_func, 0);
+	timer_setup(&cn_test_timer, cn_test_timer_func, 0);
 	mod_timer(&cn_test_timer, jiffies + msecs_to_jiffies(1000));
 
 	pr_info("initialized with id={%u.%u}\n",
diff --git a/samples/hidraw/Makefile b/samples/hidraw/Makefile
index a9ab96188fbe..f5c3012ffa79 100644
--- a/samples/hidraw/Makefile
+++ b/samples/hidraw/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # kbuild trick to avoid linker error. Can be omitted if a module is built.
 obj- := dummy.o
 
diff --git a/samples/hidraw/hid-example.c b/samples/hidraw/hid-example.c
index 92e6c1511910..9bfd8ff6de82 100644
--- a/samples/hidraw/hid-example.c
+++ b/samples/hidraw/hid-example.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Hidraw Userspace Example
  *
diff --git a/samples/kprobes/Makefile b/samples/kprobes/Makefile
index 68739bc4fc6a..880e54d2c082 100644
--- a/samples/kprobes/Makefile
+++ b/samples/kprobes/Makefile
@@ -1,5 +1,5 @@
 # builds the kprobes example kernel modules;
 # then to use one (as root):  insmod <module_name.ko>
 
-obj-$(CONFIG_SAMPLE_KPROBES) += kprobe_example.o jprobe_example.o
+obj-$(CONFIG_SAMPLE_KPROBES) += kprobe_example.o
 obj-$(CONFIG_SAMPLE_KRETPROBES) += kretprobe_example.o
diff --git a/samples/kprobes/jprobe_example.c b/samples/kprobes/jprobe_example.c
deleted file mode 100644
index e3c0a40909f7..000000000000
--- a/samples/kprobes/jprobe_example.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * Here's a sample kernel module showing the use of jprobes to dump
- * the arguments of _do_fork().
- *
- * For more information on theory of operation of jprobes, see
- * Documentation/kprobes.txt
- *
- * Build and insert the kernel module as done in the kprobe example.
- * You will see the trace data in /var/log/messages and on the
- * console whenever _do_fork() is invoked to create a new process.
- * (Some messages may be suppressed if syslogd is configured to
- * eliminate duplicate messages.)
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/kprobes.h>
-
-/*
- * Jumper probe for _do_fork.
- * Mirror principle enables access to arguments of the probed routine
- * from the probe handler.
- */
-
-/* Proxy routine having the same arguments as actual _do_fork() routine */
-static long j_do_fork(unsigned long clone_flags, unsigned long stack_start,
-	      unsigned long stack_size, int __user *parent_tidptr,
-	      int __user *child_tidptr, unsigned long tls)
-{
-	pr_info("jprobe: clone_flags = 0x%lx, stack_start = 0x%lx "
-		"stack_size = 0x%lx\n", clone_flags, stack_start, stack_size);
-
-	/* Always end with a call to jprobe_return(). */
-	jprobe_return();
-	return 0;
-}
-
-static struct jprobe my_jprobe = {
-	.entry			= j_do_fork,
-	.kp = {
-		.symbol_name	= "_do_fork",
-	},
-};
-
-static int __init jprobe_init(void)
-{
-	int ret;
-
-	ret = register_jprobe(&my_jprobe);
-	if (ret < 0) {
-		pr_err("register_jprobe failed, returned %d\n", ret);
-		return -1;
-	}
-	pr_info("Planted jprobe at %p, handler addr %p\n",
-	       my_jprobe.kp.addr, my_jprobe.entry);
-	return 0;
-}
-
-static void __exit jprobe_exit(void)
-{
-	unregister_jprobe(&my_jprobe);
-	pr_info("jprobe at %p unregistered\n", my_jprobe.kp.addr);
-}
-
-module_init(jprobe_init)
-module_exit(jprobe_exit)
-MODULE_LICENSE("GPL");
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c
index 88b3e2d227ae..67de3b774bc9 100644
--- a/samples/kprobes/kprobe_example.c
+++ b/samples/kprobes/kprobe_example.c
@@ -47,6 +47,10 @@ static int handler_pre(struct kprobe *p, struct pt_regs *regs)
 			" pstate = 0x%lx\n",
 		p->symbol_name, p->addr, (long)regs->pc, (long)regs->pstate);
 #endif
+#ifdef CONFIG_S390
+	pr_info("<%s> pre_handler: p->addr, 0x%p, ip = 0x%lx, flags = 0x%lx\n",
+		p->symbol_name, p->addr, regs->psw.addr, regs->flags);
+#endif
 
 	/* A dump_stack() here will give a stack backtrace */
 	return 0;
@@ -76,6 +80,10 @@ static void handler_post(struct kprobe *p, struct pt_regs *regs,
 	pr_info("<%s> post_handler: p->addr = 0x%p, pstate = 0x%lx\n",
 		p->symbol_name, p->addr, (long)regs->pstate);
 #endif
+#ifdef CONFIG_S390
+	pr_info("<%s> pre_handler: p->addr, 0x%p, flags = 0x%lx\n",
+		p->symbol_name, p->addr, regs->flags);
+#endif
 }
 
 /*
diff --git a/samples/mei/Makefile b/samples/mei/Makefile
index 7aac216dc420..c7e52e9e92ca 100644
--- a/samples/mei/Makefile
+++ b/samples/mei/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC := $(CROSS_COMPILE)gcc
 CFLAGS := -I../../usr/include
 
diff --git a/samples/mic/mpssd/Makefile b/samples/mic/mpssd/Makefile
index 3e3ef91fed6b..a7a6e0c70424 100644
--- a/samples/mic/mpssd/Makefile
+++ b/samples/mic/mpssd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef CROSS_COMPILE
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
diff --git a/samples/mic/mpssd/mpssd.c b/samples/mic/mpssd/mpssd.c
index 49db1def1721..f42ce551bb48 100644
--- a/samples/mic/mpssd/mpssd.c
+++ b/samples/mic/mpssd/mpssd.c
@@ -65,7 +65,7 @@ static struct mic_info mic_list;
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)        _ALIGN(addr, PAGE_SIZE)
 
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
 
 #define GSO_ENABLED		1
 #define MAX_GSO_SIZE		(64 * 1024)
@@ -382,7 +382,7 @@ disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
 
 static inline __u16 read_avail_idx(struct mic_vring *vr)
 {
-	return ACCESS_ONCE(vr->info->avail_idx);
+	return READ_ONCE(vr->info->avail_idx);
 }
 
 static inline void txrx_prepare(int type, bool tx, struct mic_vring *vr,
@@ -523,7 +523,7 @@ spin_for_descriptors(struct mic_info *mic, struct mic_vring *vr)
 {
 	__u16 avail_idx = read_avail_idx(vr);
 
-	while (avail_idx == le16toh(ACCESS_ONCE(vr->vr.avail->idx))) {
+	while (avail_idx == le16toh(READ_ONCE(vr->vr.avail->idx))) {
 #ifdef DEBUG
 		mpsslog("%s %s waiting for desc avail %d info_avail %d\n",
 			mic->name, __func__,
diff --git a/samples/pktgen/parameters.sh b/samples/pktgen/parameters.sh
index 3a6244d5f47a..72fc562876e2 100644
--- a/samples/pktgen/parameters.sh
+++ b/samples/pktgen/parameters.sh
@@ -1,4 +1,5 @@
 #
+# SPDX-License-Identifier: GPL-2.0
 # Common parameter parsing for pktgen scripts
 #
 
diff --git a/samples/pktgen/pktgen.conf-1-1-ip6 b/samples/pktgen/pktgen.conf-1-1-ip6
index 0b9ffd47fd41..62426afeef84 100755
--- a/samples/pktgen/pktgen.conf-1-1-ip6
+++ b/samples/pktgen/pktgen.conf-1-1-ip6
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-1-1-ip6-rdos b/samples/pktgen/pktgen.conf-1-1-ip6-rdos
index ad98e5f40776..3ac3eb1f3504 100755
--- a/samples/pktgen/pktgen.conf-1-1-ip6-rdos
+++ b/samples/pktgen/pktgen.conf-1-1-ip6-rdos
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen.conf-1-2 b/samples/pktgen/pktgen.conf-1-2
index ba4eb26e168d..a85552760762 100755
--- a/samples/pktgen/pktgen.conf-1-2
+++ b/samples/pktgen/pktgen.conf-1-2
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 #modprobe pktgen
 
diff --git a/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh b/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
index e5bfe759a0fb..2839f7d315cf 100755
--- a/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
+++ b/samples/pktgen/pktgen_bench_xmit_mode_netif_receive.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Benchmark script:
 #  - developed for benchmarking ingress qdisc path
diff --git a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
index 1ad878e95539..e1ee54465def 100755
--- a/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
+++ b/samples/pktgen/pktgen_bench_xmit_mode_queue_xmit.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Benchmark script:
 #  - developed for benchmarking egress qdisc path, derived (more
diff --git a/samples/pktgen/pktgen_sample01_simple.sh b/samples/pktgen/pktgen_sample01_simple.sh
index 35b7fe34bda2..e9ab4edba2d7 100755
--- a/samples/pktgen/pktgen_sample01_simple.sh
+++ b/samples/pktgen/pktgen_sample01_simple.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Simple example:
 #  * pktgen sending with single thread and single interface
diff --git a/samples/pktgen/pktgen_sample02_multiqueue.sh b/samples/pktgen/pktgen_sample02_multiqueue.sh
index cbdd3e2bceff..99f740ae9857 100755
--- a/samples/pktgen/pktgen_sample02_multiqueue.sh
+++ b/samples/pktgen/pktgen_sample02_multiqueue.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Multiqueue: Using pktgen threads for sending on multiple CPUs
 #  * adding devices to kernel threads
diff --git a/samples/pktgen/pktgen_sample03_burst_single_flow.sh b/samples/pktgen/pktgen_sample03_burst_single_flow.sh
index 8d26e0ca683d..4c2e4217638a 100755
--- a/samples/pktgen/pktgen_sample03_burst_single_flow.sh
+++ b/samples/pktgen/pktgen_sample03_burst_single_flow.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Script for max single flow performance
 #  - If correctly tuned[1], single CPU 10G wirespeed small pkts is possible[2]
diff --git a/samples/pktgen/pktgen_sample04_many_flows.sh b/samples/pktgen/pktgen_sample04_many_flows.sh
index 497fb7520464..4df92b7176da 100755
--- a/samples/pktgen/pktgen_sample04_many_flows.sh
+++ b/samples/pktgen/pktgen_sample04_many_flows.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Script example for many flows testing
 #
diff --git a/samples/pktgen/pktgen_sample05_flow_per_thread.sh b/samples/pktgen/pktgen_sample05_flow_per_thread.sh
index ac9cfd6b2c0a..7f8b5e59f01e 100755
--- a/samples/pktgen/pktgen_sample05_flow_per_thread.sh
+++ b/samples/pktgen/pktgen_sample05_flow_per_thread.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Script will generate one flow per thread (-t N)
 #  - Same destination IP
diff --git a/samples/seccomp/Makefile b/samples/seccomp/Makefile
index bf7cc6b0dc19..19a870eed82b 100644
--- a/samples/seccomp/Makefile
+++ b/samples/seccomp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # kbuild trick to avoid linker error. Can be omitted if a module is built.
 obj- := dummy.o
 
diff --git a/samples/seccomp/bpf-direct.c b/samples/seccomp/bpf-direct.c
index 151ec3f52189..c09e4a17ac1a 100644
--- a/samples/seccomp/bpf-direct.c
+++ b/samples/seccomp/bpf-direct.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Seccomp filter example for x86 (32-bit and 64-bit) with BPF macros
  *
diff --git a/samples/seccomp/bpf-fancy.c b/samples/seccomp/bpf-fancy.c
index e8b24f443709..1ccb435025b6 100644
--- a/samples/seccomp/bpf-fancy.c
+++ b/samples/seccomp/bpf-fancy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Seccomp BPF example using a macro-based generator.
  *
diff --git a/samples/seccomp/bpf-helper.c b/samples/seccomp/bpf-helper.c
index 1ef0f4d72898..ae260d77a868 100644
--- a/samples/seccomp/bpf-helper.c
+++ b/samples/seccomp/bpf-helper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Seccomp BPF helper functions
  *
diff --git a/samples/seccomp/bpf-helper.h b/samples/seccomp/bpf-helper.h
index 1d8de9edd858..0cc9816fe8e8 100644
--- a/samples/seccomp/bpf-helper.h
+++ b/samples/seccomp/bpf-helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Example wrapper around BPF macros.
  *
diff --git a/samples/seccomp/dropper.c b/samples/seccomp/dropper.c
index 68325ca5e71c..cc0648eb389e 100644
--- a/samples/seccomp/dropper.c
+++ b/samples/seccomp/dropper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Naive system call dropper built on seccomp_filter.
  *
diff --git a/samples/sockmap/sockmap_kern.c b/samples/sockmap/sockmap_kern.c
index f9b38ef82dc2..52b0053274f4 100644
--- a/samples/sockmap/sockmap_kern.c
+++ b/samples/sockmap/sockmap_kern.c
@@ -62,7 +62,7 @@ int bpf_prog2(struct __sk_buff *skb)
 		ret = 1;
 
 	bpf_printk("sockmap: %d -> %d @ %d\n", lport, bpf_ntohl(rport), ret);
-	return bpf_sk_redirect_map(&sock_map, ret, 0);
+	return bpf_sk_redirect_map(skb, &sock_map, ret, 0);
 }
 
 SEC("sockops")
diff --git a/samples/timers/Makefile b/samples/timers/Makefile
index a5c3c4a35ca1..f9fa07460802 100644
--- a/samples/timers/Makefile
+++ b/samples/timers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef CROSS_COMPILE
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
diff --git a/samples/timers/hpet_example.c b/samples/timers/hpet_example.c
index 3ab4993d85e0..f1cb622f6ec0 100644
--- a/samples/timers/hpet_example.c
+++ b/samples/timers/hpet_example.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/samples/trace_events/trace-events-sample.c b/samples/trace_events/trace-events-sample.c
index bc7fcf010a5b..5522692100ba 100644
--- a/samples/trace_events/trace-events-sample.c
+++ b/samples/trace_events/trace-events-sample.c
@@ -78,29 +78,37 @@ static int simple_thread_fn(void *arg)
 }
 
 static DEFINE_MUTEX(thread_mutex);
+static int simple_thread_cnt;
 
 int foo_bar_reg(void)
 {
+	mutex_lock(&thread_mutex);
+	if (simple_thread_cnt++)
+		goto out;
+
 	pr_info("Starting thread for foo_bar_fn\n");
 	/*
 	 * We shouldn't be able to start a trace when the module is
 	 * unloading (there's other locks to prevent that). But
 	 * for consistency sake, we still take the thread_mutex.
 	 */
-	mutex_lock(&thread_mutex);
 	simple_tsk_fn = kthread_run(simple_thread_fn, NULL, "event-sample-fn");
+ out:
 	mutex_unlock(&thread_mutex);
 	return 0;
 }
 
 void foo_bar_unreg(void)
 {
-	pr_info("Killing thread for foo_bar_fn\n");
-	/* protect against module unloading */
 	mutex_lock(&thread_mutex);
+	if (--simple_thread_cnt)
+		goto out;
+
+	pr_info("Killing thread for foo_bar_fn\n");
 	if (simple_tsk_fn)
 		kthread_stop(simple_tsk_fn);
 	simple_tsk_fn = NULL;
+ out:
 	mutex_unlock(&thread_mutex);
 }
 
diff --git a/samples/trace_events/trace-events-sample.h b/samples/trace_events/trace-events-sample.h
index 76a75ab7a608..5bcd91455ec8 100644
--- a/samples/trace_events/trace-events-sample.h
+++ b/samples/trace_events/trace-events-sample.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * If TRACE_SYSTEM is defined, that will be the directory created
  * in the ftrace directory under /sys/kernel/tracing/events/<system>
diff --git a/samples/uhid/uhid-example.c b/samples/uhid/uhid-example.c
index 7d58a4b8d324..b72d645ce828 100644
--- a/samples/uhid/uhid-example.c
+++ b/samples/uhid/uhid-example.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * UHID Example
  *
diff --git a/samples/watchdog/Makefile b/samples/watchdog/Makefile
index 9b53d89b1ccf..a9430fa60253 100644
--- a/samples/watchdog/Makefile
+++ b/samples/watchdog/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC := $(CROSS_COMPILE)gcc
 PROGS := watchdog-simple
 
diff --git a/samples/watchdog/watchdog-simple.c b/samples/watchdog/watchdog-simple.c
index ba45803a2216..9ce66d2ca2a9 100644
--- a/samples/watchdog/watchdog-simple.c
+++ b/samples/watchdog/watchdog-simple.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/scripts/Lindent b/scripts/Lindent
index 57b564c24d61..1688c44c2df6 100755
--- a/scripts/Lindent
+++ b/scripts/Lindent
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 PARAM="-npro -kr -i8 -ts8 -sob -l80 -ss -ncs -cp1"
 
diff --git a/scripts/Makefile b/scripts/Makefile
index c06f4997d700..25ab143cbe14 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ###
 # scripts contains sources for various helper programs used throughout
 # the kernel for the build process.
diff --git a/scripts/Makefile.asm-generic b/scripts/Makefile.asm-generic
index a6c8c1780855..524eeedc8d25 100644
--- a/scripts/Makefile.asm-generic
+++ b/scripts/Makefile.asm-generic
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # include/asm-generic contains a lot of files that are used
 # verbatim by several architectures.
 #
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 2e3a10e79ca9..e63af4e19382 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Building
 # ==========================================================================
@@ -258,13 +259,15 @@ ifneq ($(SKIP_STACK_VALIDATION),1)
 
 __objtool_obj := $(objtree)/tools/objtool/objtool
 
-objtool_args = $(if $(CONFIG_ORC_UNWINDER),orc generate,check)
+objtool_args = $(if $(CONFIG_UNWINDER_ORC),orc generate,check)
 
 ifndef CONFIG_FRAME_POINTER
 objtool_args += --no-fp
 endif
 ifdef CONFIG_GCOV_KERNEL
 objtool_args += --no-unreachable
+else
+objtool_args += $(call cc-ifversion, -lt, 0405, --no-unreachable)
 endif
 
 # 'OBJECT_FILES_NON_STANDARD := y': skip objtool checking for a directory
@@ -417,7 +420,7 @@ targets += $(extra-y) $(MAKECMDGOALS) $(always)
 # Linker scripts preprocessor (.lds.S -> .lds)
 # ---------------------------------------------------------------------------
 quiet_cmd_cpp_lds_S = LDS     $@
-      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \
+      cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -U$(ARCH) \
 	                     -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $<
 
 $(obj)/%.lds: $(src)/%.lds.S FORCE
diff --git a/scripts/Makefile.clean b/scripts/Makefile.clean
index 50616ea25131..808d09f27ad4 100644
--- a/scripts/Makefile.clean
+++ b/scripts/Makefile.clean
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Cleaning up
 # ==========================================================================
diff --git a/scripts/Makefile.dtbinst b/scripts/Makefile.dtbinst
index 993fb85982df..c8ba6e7f9868 100644
--- a/scripts/Makefile.dtbinst
+++ b/scripts/Makefile.dtbinst
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Installing dtb files
 #
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index fb3522fd8702..c6ebf4239e64 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 #
 # make W=... settings
@@ -37,6 +38,7 @@ warning-2 += $(call cc-option, -Wlogical-op)
 warning-2 += $(call cc-option, -Wmissing-field-initializers)
 warning-2 += $(call cc-option, -Wsign-compare)
 warning-2 += $(call cc-option, -Wmaybe-uninitialized)
+warning-2 += $(call cc-option, -Wunused-macros)
 
 warning-3 := -Wbad-function-cast
 warning-3 += -Wcast-qual
diff --git a/scripts/Makefile.fwinst b/scripts/Makefile.fwinst
deleted file mode 100644
index b27290035253..000000000000
--- a/scripts/Makefile.fwinst
+++ /dev/null
@@ -1,70 +0,0 @@
-# ==========================================================================
-# Installing firmware
-#
-# We don't include the .config, so all firmware files are in $(fw-shipped-)
-# rather than in $(fw-shipped-y) or $(fw-shipped-m).
-# ==========================================================================
-
-INSTALL := install
-src := $(obj)
-
-# For modules_install installing firmware, we want to see .config
-# But for firmware_install, we don't care, but don't want to require it.
--include $(objtree)/.config
-
-include scripts/Kbuild.include
-include $(src)/Makefile
-
-include scripts/Makefile.host
-
-mod-fw := $(fw-shipped-m)
-# If CONFIG_FIRMWARE_IN_KERNEL isn't set, then install the
-# firmware for in-kernel drivers too.
-ifndef CONFIG_FIRMWARE_IN_KERNEL
-mod-fw += $(fw-shipped-y)
-endif
-
-ifneq ($(KBUILD_SRC),)
-# Create output directory if not already present
-_dummy := $(shell [ -d $(obj) ] || mkdir -p $(obj))
-
-firmware-dirs := $(sort $(addprefix $(objtree)/$(obj)/,$(dir $(fw-external-y) $(fw-shipped-all))))
-# Create directories for firmware in subdirectories
-_dummy := $(foreach d,$(firmware-dirs), $(shell [ -d $(d) ] || mkdir -p $(d)))
-endif
-
-installed-mod-fw := $(addprefix $(INSTALL_FW_PATH)/,$(mod-fw))
-
-installed-fw := $(addprefix $(INSTALL_FW_PATH)/,$(fw-shipped-all))
-
-quiet_cmd_install = INSTALL $(subst $(srctree)/,,$@)
-      cmd_install = mkdir -p $(@D); $(INSTALL) -m0644 $< $@
-
-$(installed-fw): $(INSTALL_FW_PATH)/%: $(obj)/%
-	$(call cmd,install)
-
-PHONY +=  __fw_install __fw_modinst FORCE
-
-.PHONY: $(PHONY)
-
-__fw_install: $(installed-fw)
-
-__fw_modinst: $(installed-mod-fw)
-	@:
-
-__fw_modbuild: $(addprefix $(obj)/,$(mod-fw))
-	@:
-
-FORCE:
-
-# Read all saved command lines and dependencies for the $(targets) we
-# may be building using $(if_changed{,_dep}). As an optimization, we
-# don't need to read them if the target does not exist; we will rebuild
-# anyway in that case.
-
-targets := $(wildcard $(sort $(targets)))
-cmd_files := $(wildcard $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
-
-ifneq ($(cmd_files),)
-  include $(cmd_files)
-endif
diff --git a/scripts/Makefile.gcc-plugins b/scripts/Makefile.gcc-plugins
index d1f7b0d6be66..b2a95af7df18 100644
--- a/scripts/Makefile.gcc-plugins
+++ b/scripts/Makefile.gcc-plugins
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifdef CONFIG_GCC_PLUGINS
   __PLUGINCC := $(call cc-ifversion, -ge, 0408, $(HOSTCXX), $(HOSTCC))
   PLUGINCC := $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-plugin.sh "$(__PLUGINCC)" "$(HOSTCXX)" "$(CC)")
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst
index 343d586e566e..99967948d764 100644
--- a/scripts/Makefile.headersinst
+++ b/scripts/Makefile.headersinst
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Installing headers
 #
diff --git a/scripts/Makefile.host b/scripts/Makefile.host
index 9cfd5c84d76f..10e5c3cb89dc 100644
--- a/scripts/Makefile.host
+++ b/scripts/Makefile.host
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Building binaries on the host system
 # Binaries are used during the compilation of the kernel, for example
diff --git a/scripts/Makefile.kasan b/scripts/Makefile.kasan
index 9576775a86f6..1ce7115aa499 100644
--- a/scripts/Makefile.kasan
+++ b/scripts/Makefile.kasan
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifdef CONFIG_KASAN
 ifdef CONFIG_KASAN_INLINE
 	call_threshold := 10000
diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 5e975fee0f5b..04b5633df1cf 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Backward compatibility
 asflags-y  += $(EXTRA_AFLAGS)
 ccflags-y  += $(EXTRA_CFLAGS)
diff --git a/scripts/Makefile.modbuiltin b/scripts/Makefile.modbuiltin
index 1adb974e6950..a763b4775d06 100644
--- a/scripts/Makefile.modbuiltin
+++ b/scripts/Makefile.modbuiltin
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Generating modules.builtin
 # ==========================================================================
diff --git a/scripts/Makefile.modinst b/scripts/Makefile.modinst
index 07650eeaaf06..51ca0244fc8a 100644
--- a/scripts/Makefile.modinst
+++ b/scripts/Makefile.modinst
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Installing modules
 # ==========================================================================
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 16923ba4b5b1..991db7d6e4df 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ===========================================================================
 # Module versions
 # ===========================================================================
@@ -97,7 +98,6 @@ vmlinux.o: FORCE
 	$(call cmd,kernel-mod)
 
 # Declare generated files as targets for modpost
-$(symverfile):         __modpost ;
 $(modules:.ko=.mod.c): __modpost ;
 
 
diff --git a/scripts/Makefile.modsign b/scripts/Makefile.modsign
index b6ac7084da79..171483bc0538 100644
--- a/scripts/Makefile.modsign
+++ b/scripts/Makefile.modsign
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ==========================================================================
 # Signing modules
 # ==========================================================================
diff --git a/scripts/Makefile.ubsan b/scripts/Makefile.ubsan
index 3b1b13818d59..8fd4d44fbcd1 100644
--- a/scripts/Makefile.ubsan
+++ b/scripts/Makefile.ubsan
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifdef CONFIG_UBSAN
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=shift)
       CFLAGS_UBSAN += $(call cc-option, -fsanitize=integer-divide-by-zero)
diff --git a/scripts/check_00index.sh b/scripts/check_00index.sh
index 6ac9527aeddb..aa47f5926c80 100755
--- a/scripts/check_00index.sh
+++ b/scripts/check_00index.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 cd Documentation/
 
diff --git a/scripts/check_extable.sh b/scripts/check_extable.sh
index 0fb6b1c97c27..93af93c7b346 100755
--- a/scripts/check_extable.sh
+++ b/scripts/check_extable.sh
@@ -1,4 +1,5 @@
 #! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # (c) 2015, Quentin Casasnovas <quentin.casasnovas@oracle.com>
 
 obj=$1
diff --git a/scripts/checkincludes.pl b/scripts/checkincludes.pl
index ce9edefd6e0b..b514a956d550 100755
--- a/scripts/checkincludes.pl
+++ b/scripts/checkincludes.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # checkincludes: find/remove files included more than once
 #
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..8b80bac055e4 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -6390,7 +6390,7 @@ sub process {
 		exit(0);
 	}
 
-	if (!$is_patch && $file !~ /cover-letter\.patch$/) {
+	if (!$is_patch && $filename !~ /cover-letter\.patch$/) {
 		ERROR("NOT_UNIFIED_DIFF",
 		      "Does not appear to be a unified-diff format patch\n");
 	}
diff --git a/scripts/checkstack.pl b/scripts/checkstack.pl
index 7f4c41717e26..cb993801e4b2 100755
--- a/scripts/checkstack.pl
+++ b/scripts/checkstack.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 
 #	Check the stack usage of functions
 #
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index 5a387a264201..ee3dfb5be6cd 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # Check if current architecture are missing any function calls compared
 # to i386.
diff --git a/scripts/checkversion.pl b/scripts/checkversion.pl
index 8b4f205234b5..f67b125c5269 100755
--- a/scripts/checkversion.pl
+++ b/scripts/checkversion.pl
@@ -1,4 +1,5 @@
 #! /usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # checkversion find uses of LINUX_VERSION_CODE or KERNEL_VERSION
 # without including <linux/version.h>, or cases of
diff --git a/scripts/cleanfile b/scripts/cleanfile
index 72e3755327ae..c00c69b9171a 100755
--- a/scripts/cleanfile
+++ b/scripts/cleanfile
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # Clean a text file -- or directory of text files -- of stealth whitespace.
 # WARNING: this can be a highly destructive operation.  Use with caution.
diff --git a/scripts/cleanpatch b/scripts/cleanpatch
index 3e5a2303dc0e..9f1755271516 100755
--- a/scripts/cleanpatch
+++ b/scripts/cleanpatch
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # Clean a patch file -- or directory of patch files -- of stealth whitespace.
 # WARNING: this can be a highly destructive operation.  Use with caution.
diff --git a/scripts/coccicheck b/scripts/coccicheck
index ec487b8e7051..28ad1feff9e1 100755
--- a/scripts/coccicheck
+++ b/scripts/coccicheck
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # Linux kernel coccicheck
 #
 # Read Documentation/dev-tools/coccinelle.rst
diff --git a/scripts/coccinelle/api/d_find_alias.cocci b/scripts/coccinelle/api/d_find_alias.cocci
index 9594c9f7eb8d..47e050166f20 100644
--- a/scripts/coccinelle/api/d_find_alias.cocci
+++ b/scripts/coccinelle/api/d_find_alias.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /// Make sure calls to d_find_alias() have a corresponding call to dput().
 //
 // Keywords: d_find_alias, dput
diff --git a/scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci b/scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
index 85cf5408d378..7c312310547c 100644
--- a/scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
+++ b/scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /// Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
 /// for debugfs files.
 ///
diff --git a/scripts/coccinelle/api/drm-get-put.cocci b/scripts/coccinelle/api/drm-get-put.cocci
index 0c7a9265c07e..bf1313274f0b 100644
--- a/scripts/coccinelle/api/drm-get-put.cocci
+++ b/scripts/coccinelle/api/drm-get-put.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 ///
 /// Use drm_*_get() and drm_*_put() helpers instead of drm_*_reference() and
 /// drm_*_unreference() helpers.
diff --git a/scripts/coccinelle/api/simple_open.cocci b/scripts/coccinelle/api/simple_open.cocci
index bd1a2a4ee106..c121876d54ec 100644
--- a/scripts/coccinelle/api/simple_open.cocci
+++ b/scripts/coccinelle/api/simple_open.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /// Remove an open coded simple_open() function
 /// and replace file operations references to the function
 /// with simple_open() instead.
diff --git a/scripts/coccinelle/api/vma_pages.cocci b/scripts/coccinelle/api/vma_pages.cocci
index 3e52e11ea1dc..10511b9bf35e 100644
--- a/scripts/coccinelle/api/vma_pages.cocci
+++ b/scripts/coccinelle/api/vma_pages.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 ///
 /// Use vma_pages function on vma object instead of explicit computation.
 ///
diff --git a/scripts/coccinelle/misc/boolreturn.cocci b/scripts/coccinelle/misc/boolreturn.cocci
index a43c7b0c36ef..29d2bf41e95d 100644
--- a/scripts/coccinelle/misc/boolreturn.cocci
+++ b/scripts/coccinelle/misc/boolreturn.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /// Return statements in functions returning bool should use
 /// true/false instead of 1/0.
 //
diff --git a/scripts/coccinelle/misc/irqf_oneshot.cocci b/scripts/coccinelle/misc/irqf_oneshot.cocci
index f698d6d0f5d7..7b48287b3dc1 100644
--- a/scripts/coccinelle/misc/irqf_oneshot.cocci
+++ b/scripts/coccinelle/misc/irqf_oneshot.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /// Since commit 1c6c69525b40 ("genirq: Reject bogus threaded irq requests")
 /// threaded IRQs without a primary handler need to be requested with
 /// IRQF_ONESHOT, otherwise the request will fail.
diff --git a/scripts/coccinelle/misc/of_table.cocci b/scripts/coccinelle/misc/of_table.cocci
index 2294915a19bc..4693ea744753 100644
--- a/scripts/coccinelle/misc/of_table.cocci
+++ b/scripts/coccinelle/misc/of_table.cocci
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /// Make sure (of/i2c/platform)_device_id tables are NULL terminated
 //
 // Keywords: of_table i2c_table platform_table
diff --git a/scripts/config b/scripts/config
index 026aeb4f32ee..e0e39826dae9 100755
--- a/scripts/config
+++ b/scripts/config
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # Manipulate options in a .config file from the command line
 
 myname=${0##*/}
diff --git a/scripts/decode_stacktrace.sh b/scripts/decode_stacktrace.sh
index 5206d99ddeb8..64220e36ce3b 100755
--- a/scripts/decode_stacktrace.sh
+++ b/scripts/decode_stacktrace.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # (c) 2014, Sasha Levin <sasha.levin@oracle.com>
 #set -x
 
diff --git a/scripts/decodecode b/scripts/decodecode
index d8824f37acce..438120da1361 100755
--- a/scripts/decodecode
+++ b/scripts/decodecode
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Disassemble the Code: line in Linux oopses
 # usage: decodecode < oops.file
 #
diff --git a/scripts/depmod.sh b/scripts/depmod.sh
index 122599b1c13b..9831cca31240 100755
--- a/scripts/depmod.sh
+++ b/scripts/depmod.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # A depmod wrapper used by the toplevel Makefile
 
diff --git a/scripts/diffconfig b/scripts/diffconfig
index 0db267d0adc9..89abf777f197 100755
--- a/scripts/diffconfig
+++ b/scripts/diffconfig
@@ -1,4 +1,5 @@
 #!/usr/bin/python
+# SPDX-License-Identifier: GPL-2.0
 #
 # diffconfig - a tool to compare .config files.
 #
diff --git a/scripts/documentation-file-ref-check b/scripts/documentation-file-ref-check
new file mode 100755
index 000000000000..bc1659900e89
--- /dev/null
+++ b/scripts/documentation-file-ref-check
@@ -0,0 +1,15 @@
+#!/bin/sh
+# Treewide grep for references to files under Documentation, and report
+# non-existing files in stderr.
+
+for f in $(git ls-files); do
+	for ref in $(grep -ho "Documentation/[A-Za-z0-9_.,~/*+-]*" "$f"); do
+		# presume trailing . and , are not part of the name
+		ref=${ref%%[.,]}
+
+		# use ls to handle wildcards
+		if ! ls $ref >/dev/null 2>&1; then
+			echo "$f: $ref" >&2
+		fi
+	done
+done
diff --git a/scripts/dtc/Makefile b/scripts/dtc/Makefile
index 2a48022c41e7..0dc922bb7aea 100644
--- a/scripts/dtc/Makefile
+++ b/scripts/dtc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # scripts/dtc makefile
 
 hostprogs-y	:= dtc
diff --git a/scripts/dtc/dtx_diff b/scripts/dtc/dtx_diff
index f9a3d8d23c64..8c4fbad2055e 100755
--- a/scripts/dtc/dtx_diff
+++ b/scripts/dtc/dtx_diff
@@ -86,6 +86,7 @@ eod
 compile_to_dts() {
 
 	dtx="$1"
+	dtc_include="$2"
 
 	if [ -d "${dtx}" ] ; then
 
@@ -113,7 +114,7 @@ compile_to_dts() {
 		# -----  input is DTS (source)
 
 		if ( cpp ${cpp_flags} -x assembler-with-cpp ${dtx} \
-			| ${DTC} -I dts ) ; then
+			| ${DTC} ${dtc_include} -I dts ) ; then
 			return
 		fi
 
@@ -320,18 +321,13 @@ fi
 
 cpp_flags="\
 	-nostdinc                                  \
-	-I${srctree}/arch/${ARCH}/boot/dts         \
 	-I${srctree}/scripts/dtc/include-prefixes  \
-	-I${srctree}/drivers/of/testcase-data      \
 	-undef -D__DTS__"
 
-dtc_flags="\
-	-i ${srctree}/arch/${ARCH}/boot/dts/ \
-	-i ${srctree}/kernel/dts             \
-	${dtx_path_1_dtc_include}            \
-	${dtx_path_2_dtc_include}"
-
-DTC="${DTC} ${dtc_flags} -O dts -qq -f ${dtc_sort} -o -"
+DTC="\
+	${DTC}                                     \
+	-i ${srctree}/scripts/dtc/include-prefixes \
+	-O dts -qq -f ${dtc_sort} -o -"
 
 
 # -----  do the diff or decompile
@@ -339,11 +335,11 @@ DTC="${DTC} ${dtc_flags} -O dts -qq -f ${dtc_sort} -o -"
 if (( ${cmd_diff} )) ; then
 
 	diff ${diff_flags} --label "${dtx_file_1}" --label "${dtx_file_2}" \
-		<(compile_to_dts "${dtx_file_1}") \
-		<(compile_to_dts "${dtx_file_2}")
+		<(compile_to_dts "${dtx_file_1}" "${dtx_path_1_dtc_include}") \
+		<(compile_to_dts "${dtx_file_2}" "${dtx_path_2_dtc_include}")
 
 else
 
-	compile_to_dts "${dtx_file_1}"
+	compile_to_dts "${dtx_file_1}" "${dtx_path_1_dtc_include}"
 
 fi
diff --git a/scripts/dtc/fdtdump.c b/scripts/dtc/fdtdump.c
index 207a46d64864..7d460a50b513 100644
--- a/scripts/dtc/fdtdump.c
+++ b/scripts/dtc/fdtdump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * fdtdump.c - Contributed by Pantelis Antoniou <pantelis.antoniou AT gmail.com>
  */
diff --git a/scripts/dtc/update-dtc-source.sh b/scripts/dtc/update-dtc-source.sh
index b8ebcc6722d2..62f0d5325fd3 100755
--- a/scripts/dtc/update-dtc-source.sh
+++ b/scripts/dtc/update-dtc-source.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Simple script to update the version of DTC carried by the Linux kernel
 #
 # This script assumes that the dtc and the linux git trees are in the
diff --git a/scripts/extract-module-sig.pl b/scripts/extract-module-sig.pl
index 0f161ea41261..36a2f59c4e41 100755
--- a/scripts/extract-module-sig.pl
+++ b/scripts/extract-module-sig.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # extract-mod-sig <part> <module-file>
 #
diff --git a/scripts/extract-sys-certs.pl b/scripts/extract-sys-certs.pl
index 2aa873b944e0..fa8ab15118cc 100755
--- a/scripts/extract-sys-certs.pl
+++ b/scripts/extract-sys-certs.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 use warnings;
 use strict;
diff --git a/scripts/faddr2line b/scripts/faddr2line
index 29df825d375c..1f5ce959f596 100755
--- a/scripts/faddr2line
+++ b/scripts/faddr2line
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Translate stack dump function offsets.
 #
@@ -103,11 +104,12 @@ __faddr2line() {
 
 	# Go through each of the object's symbols which match the func name.
 	# In rare cases there might be duplicates.
+	file_end=$(size -Ax $objfile | awk '$1 == ".text" {print $2}')
 	while read symbol; do
 		local fields=($symbol)
 		local sym_base=0x${fields[0]}
 		local sym_type=${fields[1]}
-		local sym_end=0x${fields[3]}
+		local sym_end=${fields[3]}
 
 		# calculate the size
 		local sym_size=$(($sym_end - $sym_base))
@@ -157,7 +159,7 @@ __faddr2line() {
 		addr2line -fpie $objfile $addr | sed "s; $dir_prefix\(\./\)*; ;"
 		DONE=1
 
-	done < <(nm -n $objfile | awk -v fn=$func '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, $1 }')
+	done < <(nm -n $objfile | awk -v fn=$func -v end=$file_end '$3 == fn { found=1; line=$0; start=$1; next } found == 1 { found=0; print line, "0x"$1 } END {if (found == 1) print line, end; }')
 }
 
 [[ $# -lt 2 ]] && usage
diff --git a/scripts/find-unused-docs.sh b/scripts/find-unused-docs.sh
new file mode 100755
index 000000000000..3f46f8977dc4
--- /dev/null
+++ b/scripts/find-unused-docs.sh
@@ -0,0 +1,62 @@
+#!/bin/bash
+# (c) 2017, Jonathan Corbet <corbet@lwn.net>
+#           sayli karnik <karniksayli1995@gmail.com>
+#
+# This script detects files with kernel-doc comments for exported functions
+# that are not included in documentation.
+#
+# usage: Run 'scripts/find-unused-docs.sh directory' from top level of kernel
+# 	 tree.
+#
+# example: $scripts/find-unused-docs.sh drivers/scsi
+#
+# Licensed under the terms of the GNU GPL License
+
+if ! [ -d "Documentation" ]; then
+	echo "Run from top level of kernel tree"
+	exit 1
+fi
+
+if [ "$#" -ne 1 ]; then
+	echo "Usage: scripts/find-unused-docs.sh directory"
+	exit 1
+fi
+
+if ! [ -d "$1" ]; then
+	echo "Directory $1 doesn't exist"
+	exit 1
+fi
+
+cd "$( dirname "${BASH_SOURCE[0]}" )"
+cd ..
+
+cd Documentation/
+
+echo "The following files contain kerneldoc comments for exported functions \
+that are not used in the formatted documentation"
+
+# FILES INCLUDED
+
+files_included=($(grep -rHR ".. kernel-doc" --include \*.rst | cut -d " " -f 3))
+
+declare -A FILES_INCLUDED
+
+for each in "${files_included[@]}"; do
+	FILES_INCLUDED[$each]="$each"
+	done
+
+cd ..
+
+# FILES NOT INCLUDED
+
+for file in `find $1 -name '*.c'`; do
+
+	if [[ ${FILES_INCLUDED[$file]+_} ]]; then
+	continue;
+	fi
+	str=$(scripts/kernel-doc -text -export "$file" 2>/dev/null)
+	if [[ -n "$str" ]]; then
+	echo "$file"
+	fi
+	done
+
diff --git a/scripts/gcc-goto.sh b/scripts/gcc-goto.sh
index c9469d34ecc6..083c526073ef 100755
--- a/scripts/gcc-goto.sh
+++ b/scripts/gcc-goto.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Test for gcc 'asm goto' support
 # Copyright (C) 2010, Jason Baron <jbaron@redhat.com>
 
diff --git a/scripts/gcc-ld b/scripts/gcc-ld
index cadab9a13ed7..997b818c3962 100755
--- a/scripts/gcc-ld
+++ b/scripts/gcc-ld
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # run gcc with ld options
 # used as a wrapper to execute link time optimizations
 # yes virginia, this is not pretty
diff --git a/scripts/gcc-plugin.sh b/scripts/gcc-plugin.sh
index b65224bfb847..d3caefe53eab 100755
--- a/scripts/gcc-plugin.sh
+++ b/scripts/gcc-plugin.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 srctree=$(dirname "$0")
 
 SHOW_ERROR=
diff --git a/scripts/gcc-plugins/Makefile b/scripts/gcc-plugins/Makefile
index 214eb2335c31..e2ff425f4c7e 100644
--- a/scripts/gcc-plugins/Makefile
+++ b/scripts/gcc-plugins/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 GCC_PLUGINS_DIR := $(shell $(CC) -print-file-name=plugin)
 
 ifeq ($(PLUGINCC),$(HOSTCC))
diff --git a/scripts/gcc-plugins/gcc-common.h b/scripts/gcc-plugins/gcc-common.h
index 6948898b3cdf..ffd1dfaa1cc1 100644
--- a/scripts/gcc-plugins/gcc-common.h
+++ b/scripts/gcc-plugins/gcc-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GCC_COMMON_H_INCLUDED
 #define GCC_COMMON_H_INCLUDED
 
diff --git a/scripts/gcc-plugins/gcc-generate-gimple-pass.h b/scripts/gcc-plugins/gcc-generate-gimple-pass.h
index 526c3c79b68e..f20797e80b6d 100644
--- a/scripts/gcc-plugins/gcc-generate-gimple-pass.h
+++ b/scripts/gcc-plugins/gcc-generate-gimple-pass.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generator for GIMPLE pass related boilerplate code/data
  *
diff --git a/scripts/gcc-plugins/gcc-generate-ipa-pass.h b/scripts/gcc-plugins/gcc-generate-ipa-pass.h
index 9bd926e072f0..92bb4f3a87a4 100644
--- a/scripts/gcc-plugins/gcc-generate-ipa-pass.h
+++ b/scripts/gcc-plugins/gcc-generate-ipa-pass.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generator for IPA pass related boilerplate code/data
  *
diff --git a/scripts/gcc-plugins/gcc-generate-rtl-pass.h b/scripts/gcc-plugins/gcc-generate-rtl-pass.h
index 1dc67a5aeadf..d69cd80b6c10 100644
--- a/scripts/gcc-plugins/gcc-generate-rtl-pass.h
+++ b/scripts/gcc-plugins/gcc-generate-rtl-pass.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generator for RTL pass related boilerplate code/data
  *
diff --git a/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h b/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h
index a27e2b36afaa..06800bc477e0 100644
--- a/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h
+++ b/scripts/gcc-plugins/gcc-generate-simple_ipa-pass.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Generator for SIMPLE_IPA pass related boilerplate code/data
  *
diff --git a/scripts/gcc-plugins/gen-random-seed.sh b/scripts/gcc-plugins/gen-random-seed.sh
index 7514850f4815..68af5cc20a64 100644
--- a/scripts/gcc-plugins/gen-random-seed.sh
+++ b/scripts/gcc-plugins/gen-random-seed.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if [ ! -f "$1" ]; then
 	SEED=`od -A n -t x8 -N 32 /dev/urandom | tr -d ' \n'`
diff --git a/scripts/gcc-version.sh b/scripts/gcc-version.sh
index 7f2126df91f2..11bb909845e7 100755
--- a/scripts/gcc-version.sh
+++ b/scripts/gcc-version.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # gcc-version [-p] gcc-command
 #
diff --git a/scripts/gcc-x86_32-has-stack-protector.sh b/scripts/gcc-x86_32-has-stack-protector.sh
index 12dbd0b11ea4..6b2aeefb9cd3 100755
--- a/scripts/gcc-x86_32-has-stack-protector.sh
+++ b/scripts/gcc-x86_32-has-stack-protector.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
 if [ "$?" -eq "0" ] ; then
diff --git a/scripts/gcc-x86_64-has-stack-protector.sh b/scripts/gcc-x86_64-has-stack-protector.sh
index 17867e723a51..4a48bdcd4d6b 100755
--- a/scripts/gcc-x86_64-has-stack-protector.sh
+++ b/scripts/gcc-x86_64-has-stack-protector.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 echo "int foo(void) { char X[200]; return 3; }" | $* -S -x c -c -O0 -mcmodel=kernel -fno-PIE -fstack-protector - -o - 2> /dev/null | grep -q "%gs"
 if [ "$?" -eq "0" ] ; then
diff --git a/scripts/gdb/linux/Makefile b/scripts/gdb/linux/Makefile
index 8b00031f5349..aba23be985e4 100644
--- a/scripts/gdb/linux/Makefile
+++ b/scripts/gdb/linux/Makefile
@@ -1,6 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
 always := gdb-scripts
 
-SRCTREE := $(shell cd $(srctree) && /bin/pwd)
+SRCTREE := $(abspath $(srctree))
 
 $(obj)/gdb-scripts:
 ifneq ($(KBUILD_SRC),)
diff --git a/scripts/genksyms/Makefile b/scripts/genksyms/Makefile
index 3c23bab3367b..34d6ab1811a4 100644
--- a/scripts/genksyms/Makefile
+++ b/scripts/genksyms/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 hostprogs-y	:= genksyms
 always		:= $(hostprogs-y)
diff --git a/scripts/headerdep.pl b/scripts/headerdep.pl
index 86ebb9ee7570..ebfcbef4371c 100755
--- a/scripts/headerdep.pl
+++ b/scripts/headerdep.pl
@@ -1,4 +1,5 @@
 #! /usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # Detect cycles in the header file dependency graph
 # Vegard Nossum <vegardno@ifi.uio.no>
diff --git a/scripts/headers.sh b/scripts/headers.sh
index d4dc4de5cea1..e0f883eb39a2 100755
--- a/scripts/headers.sh
+++ b/scripts/headers.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Run headers_$1 command for all suitable architectures
 
 # Stop on error
diff --git a/scripts/headers_check.pl b/scripts/headers_check.pl
index 3091e4ee6ee1..b6aec5e4365f 100755
--- a/scripts/headers_check.pl
+++ b/scripts/headers_check.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 #
 # headers_check.pl execute a number of trivial consistency checks
 #
diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
index fdebd66f8fc1..a18bca720995 100755
--- a/scripts/headers_install.sh
+++ b/scripts/headers_install.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if [ $# -lt 2 ]
 then
@@ -33,7 +34,7 @@ do
 	sed -r \
 		-e 's/([ \t(])(__user|__force|__iomem)[ \t]/\1/g' \
 		-e 's/__attribute_const__([ \t]|$)/\1/g' \
-		-e 's@^#include <linux/compiler.h>@@' \
+		-e 's@^#include <linux/compiler(|_types).h>@@' \
 		-e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
 		-e 's/(^|[ \t(])(inline|asm|volatile)([ \t(]|$)/\1__\2__\3/g' \
 		-e 's@#(ifndef|define|endif[ \t]*/[*])[ \t]*_UAPI@#\1 @' \
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 5d554419170b..9ee9bf7fd1a2 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -158,7 +158,7 @@ static int read_symbol(FILE *in, struct sym_entry *s)
 	else if (str[0] == '$')
 		return -1;
 	/* exclude debugging symbols */
-	else if (stype == 'N')
+	else if (stype == 'N' || stype == 'n')
 		return -1;
 
 	/* include the type field in the symbol name, so that it gets
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 8c12c20c55a6..297c1bf35140 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ===========================================================================
 # Kernel configuration targets
 # These targets are used from top-level makefile
diff --git a/scripts/kconfig/check.sh b/scripts/kconfig/check.sh
index 55b79ba1ba2a..97f0fee7d173 100755
--- a/scripts/kconfig/check.sh
+++ b/scripts/kconfig/check.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Needed for systems without gettext
 $* -x c -o /dev/null - > /dev/null 2>&1 << EOF
 #include <libintl.h>
diff --git a/scripts/kconfig/list.h b/scripts/kconfig/list.h
index 2cf23f002d3f..45cb237ab7ef 100644
--- a/scripts/kconfig/list.h
+++ b/scripts/kconfig/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LIST_H
 #define LIST_H
 
diff --git a/scripts/kconfig/lkc_proto.h b/scripts/kconfig/lkc_proto.h
index d5398718ec2a..5d86e2dfae59 100644
--- a/scripts/kconfig/lkc_proto.h
+++ b/scripts/kconfig/lkc_proto.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <stdarg.h>
 
 /* confdata.c */
diff --git a/scripts/kconfig/lxdialog/check-lxdialog.sh b/scripts/kconfig/lxdialog/check-lxdialog.sh
index 5075ebf2d3b9..a10bd9d6fafd 100755
--- a/scripts/kconfig/lxdialog/check-lxdialog.sh
+++ b/scripts/kconfig/lxdialog/check-lxdialog.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Check ncurses compatibility
 
 # What library to link
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 9d3eafea58f0..67d051edd615 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -2168,7 +2168,7 @@ sub dump_struct($$) {
     my $nested;
 
     if ($x =~ /(struct|union)\s+(\w+)\s*{(.*)}/) {
-	#my $decl_type = $1;
+	my $decl_type = $1;
 	$declaration_name = $2;
 	my $members = $3;
 
@@ -2194,7 +2194,7 @@ sub dump_struct($$) {
 	$members =~ s/DECLARE_HASHTABLE\s*\(([^,)]+), ([^,)]+)\)/unsigned long $1\[1 << (($2) - 1)\]/gos;
 
 	create_parameterlist($members, ';', $file);
-	check_sections($file, $declaration_name, "struct", $sectcheck, $struct_actual, $nested);
+	check_sections($file, $declaration_name, $decl_type, $sectcheck, $struct_actual, $nested);
 
 	output_declaration($declaration_name,
 			   'struct',
@@ -2226,6 +2226,8 @@ sub dump_enum($$) {
     if ($x =~ /enum\s+(\w+)\s*{(.*)}/) {
 	$declaration_name = $1;
 	my $members = $2;
+	my %_members;
+
 	$members =~ s/\s+$//;
 
 	foreach my $arg (split ',', $members) {
@@ -2236,9 +2238,16 @@ sub dump_enum($$) {
 		print STDERR "${file}:$.: warning: Enum value '$arg' ".
 		    "not described in enum '$declaration_name'\n";
 	    }
-
+	    $_members{$arg} = 1;
 	}
 
+	while (my ($k, $v) = each %parameterdescs) {
+	    if (!exists($_members{$k})) {
+	     print STDERR "${file}:$.: warning: Excess enum value " .
+	                  "'$k' description in '$declaration_name'\n";
+	    }
+        }
+
 	output_declaration($declaration_name,
 			   'enum',
 			   {'enum' => $declaration_name,
@@ -2506,7 +2515,7 @@ sub check_sections($$$$$$) {
 			} else {
 				if ($nested !~ m/\Q$sects[$sx]\E/) {
 				    print STDERR "${file}:$.: warning: " .
-					"Excess struct/union/enum/typedef member " .
+					"Excess $decl_type member " .
 					"'$sects[$sx]' " .
 					"description in '$decl_name'\n";
 				    ++$warnings;
diff --git a/scripts/ld-version.sh b/scripts/ld-version.sh
index d135882e2c40..f2be0ff9a738 100755
--- a/scripts/ld-version.sh
+++ b/scripts/ld-version.sh
@@ -1,4 +1,5 @@
 #!/usr/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 # extract linker version number from stdin and turn into single number
 	{
 	gsub(".*\\)", "");
diff --git a/scripts/leaking_addresses.pl b/scripts/leaking_addresses.pl
new file mode 100755
index 000000000000..2977371b2956
--- /dev/null
+++ b/scripts/leaking_addresses.pl
@@ -0,0 +1,305 @@
+#!/usr/bin/env perl
+#
+# (c) 2017 Tobin C. Harding <me@tobin.cc>
+# Licensed under the terms of the GNU GPL License version 2
+#
+# leaking_addresses.pl: Scan 64 bit kernel for potential leaking addresses.
+#  - Scans dmesg output.
+#  - Walks directory tree and parses each file (for each directory in @DIRS).
+#
+# You can configure the behaviour of the script;
+#
+#  - By adding paths, for directories you do not want to walk;
+#     absolute paths: @skip_walk_dirs_abs
+#     directory names: @skip_walk_dirs_any
+#
+#  - By adding paths, for files you do not want to parse;
+#     absolute paths: @skip_parse_files_abs
+#     file names: @skip_parse_files_any
+#
+# The use of @skip_xxx_xxx_any causes files to be skipped where ever they occur.
+# For example adding 'fd' to @skip_walk_dirs_any causes the fd/ directory to be
+# skipped for all PID sub-directories of /proc
+#
+# The same thing can be achieved by passing command line options to --dont-walk
+# and --dont-parse. If absolute paths are supplied to these options they are
+# appended to the @skip_xxx_xxx_abs arrays. If file names are supplied to these
+# options, they are appended to the @skip_xxx_xxx_any arrays.
+#
+# Use --debug to output path before parsing, this is useful to find files that
+# cause the script to choke.
+#
+# You may like to set kptr_restrict=2 before running script
+# (see Documentation/sysctl/kernel.txt).
+
+use warnings;
+use strict;
+use POSIX;
+use File::Basename;
+use File::Spec;
+use Cwd 'abs_path';
+use Term::ANSIColor qw(:constants);
+use Getopt::Long qw(:config no_auto_abbrev);
+
+my $P = $0;
+my $V = '0.01';
+
+# Directories to scan.
+my @DIRS = ('/proc', '/sys');
+
+# Command line options.
+my $help = 0;
+my $debug = 0;
+my @dont_walk = ();
+my @dont_parse = ();
+
+# Do not parse these files (absolute path).
+my @skip_parse_files_abs = ('/proc/kmsg',
+			    '/proc/kcore',
+			    '/proc/fs/ext4/sdb1/mb_groups',
+			    '/proc/1/fd/3',
+			    '/sys/kernel/debug/tracing/trace_pipe',
+			    '/sys/kernel/security/apparmor/revision');
+
+# Do not parse thes files under any subdirectory.
+my @skip_parse_files_any = ('0',
+			    '1',
+			    '2',
+			    'pagemap',
+			    'events',
+			    'access',
+			    'registers',
+			    'snapshot_raw',
+			    'trace_pipe_raw',
+			    'ptmx',
+			    'trace_pipe');
+
+# Do not walk these directories (absolute path).
+my @skip_walk_dirs_abs = ();
+
+# Do not walk these directories under any subdirectory.
+my @skip_walk_dirs_any = ('self',
+			  'thread-self',
+			  'cwd',
+			  'fd',
+			  'stderr',
+			  'stdin',
+			  'stdout');
+
+sub help
+{
+	my ($exitcode) = @_;
+
+	print << "EOM";
+Usage: $P [OPTIONS]
+Version: $V
+
+Options:
+
+	--dont-walk=<dir>      Don't walk tree starting at <dir>.
+	--dont-parse=<file>    Don't parse <file>.
+	-d, --debug                Display debugging output.
+	-h, --help, --version      Display this help and exit.
+
+If an absolute path is passed to --dont_XXX then this path is skipped. If a
+single filename is passed then this file/directory will be skipped when
+appearing under any subdirectory.
+
+Example:
+
+	# Just scan dmesg output.
+	scripts/leaking_addresses.pl --dont_walk_abs /proc --dont_walk_abs /sys
+
+Scans the running (64 bit) kernel for potential leaking addresses.
+
+EOM
+	exit($exitcode);
+}
+
+GetOptions(
+	'dont-walk=s'		=> \@dont_walk,
+	'dont-parse=s'		=> \@dont_parse,
+	'd|debug'		=> \$debug,
+	'h|help'		=> \$help,
+	'version'		=> \$help
+) or help(1);
+
+help(0) if ($help);
+
+push_to_global();
+
+parse_dmesg();
+walk(@DIRS);
+
+exit 0;
+
+sub debug_arrays
+{
+	print 'dirs_any: ' . join(", ", @skip_walk_dirs_any) . "\n";
+	print 'dirs_abs: ' . join(", ", @skip_walk_dirs_abs) . "\n";
+	print 'parse_any: ' . join(", ", @skip_parse_files_any) . "\n";
+	print 'parse_abs: ' . join(", ", @skip_parse_files_abs) . "\n";
+}
+
+sub dprint
+{
+	printf(STDERR @_) if $debug;
+}
+
+sub push_in_abs_any
+{
+	my ($in, $abs, $any) = @_;
+
+	foreach my $path (@$in) {
+		if (File::Spec->file_name_is_absolute($path)) {
+			push @$abs, $path;
+		} elsif (index($path,'/') == -1) {
+			push @$any, $path;
+		} else {
+			print 'path error: ' . $path;
+		}
+	}
+}
+
+# Push command line options to global arrays.
+sub push_to_global
+{
+	push_in_abs_any(\@dont_walk, \@skip_walk_dirs_abs, \@skip_walk_dirs_any);
+	push_in_abs_any(\@dont_parse, \@skip_parse_files_abs, \@skip_parse_files_any);
+}
+
+sub is_false_positive
+{
+        my ($match) = @_;
+
+        if ($match =~ '\b(0x)?(f|F){16}\b' or
+            $match =~ '\b(0x)?0{16}\b') {
+                return 1;
+        }
+
+        # vsyscall memory region, we should probably check against a range here.
+        if ($match =~ '\bf{10}600000\b' or
+            $match =~ '\bf{10}601000\b') {
+                return 1;
+        }
+
+        return 0;
+}
+
+# True if argument potentially contains a kernel address.
+sub may_leak_address
+{
+        my ($line) = @_;
+        my $address = '\b(0x)?ffff[[:xdigit:]]{12}\b';
+
+        # Signal masks.
+        if ($line =~ '^SigBlk:' or
+            $line =~ '^SigCgt:') {
+                return 0;
+        }
+
+        if ($line =~ '\bKEY=[[:xdigit:]]{14} [[:xdigit:]]{16} [[:xdigit:]]{16}\b' or
+            $line =~ '\b[[:xdigit:]]{14} [[:xdigit:]]{16} [[:xdigit:]]{16}\b') {
+		return 0;
+        }
+
+        while (/($address)/g) {
+                if (!is_false_positive($1)) {
+                        return 1;
+                }
+        }
+
+        return 0;
+}
+
+sub parse_dmesg
+{
+	open my $cmd, '-|', 'dmesg';
+	while (<$cmd>) {
+		if (may_leak_address($_)) {
+			print 'dmesg: ' . $_;
+		}
+	}
+	close $cmd;
+}
+
+# True if we should skip this path.
+sub skip
+{
+	my ($path, $paths_abs, $paths_any) = @_;
+
+	foreach (@$paths_abs) {
+		return 1 if (/^$path$/);
+	}
+
+	my($filename, $dirs, $suffix) = fileparse($path);
+	foreach (@$paths_any) {
+		return 1 if (/^$filename$/);
+	}
+
+	return 0;
+}
+
+sub skip_parse
+{
+	my ($path) = @_;
+	return skip($path, \@skip_parse_files_abs, \@skip_parse_files_any);
+}
+
+sub parse_file
+{
+	my ($file) = @_;
+
+	if (! -R $file) {
+		return;
+	}
+
+	if (skip_parse($file)) {
+		dprint "skipping file: $file\n";
+		return;
+	}
+	dprint "parsing: $file\n";
+
+	open my $fh, "<", $file or return;
+	while ( <$fh> ) {
+		if (may_leak_address($_)) {
+			print $file . ': ' . $_;
+		}
+	}
+	close $fh;
+}
+
+
+# True if we should skip walking this directory.
+sub skip_walk
+{
+	my ($path) = @_;
+	return skip($path, \@skip_walk_dirs_abs, \@skip_walk_dirs_any)
+}
+
+# Recursively walk directory tree.
+sub walk
+{
+	my @dirs = @_;
+	my %seen;
+
+	while (my $pwd = shift @dirs) {
+		next if (skip_walk($pwd));
+		next if (!opendir(DIR, $pwd));
+		my @files = readdir(DIR);
+		closedir(DIR);
+
+		foreach my $file (@files) {
+			next if ($file eq '.' or $file eq '..');
+
+			my $path = "$pwd/$file";
+			next if (-l $path);
+
+			if (-d $path) {
+				push @dirs, $path;
+			} else {
+				parse_file($path);
+			}
+		}
+	}
+}
diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index e7b7eee31538..e6818b8e7141 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # link vmlinux
 #
diff --git a/scripts/makelst b/scripts/makelst
index e6581496d820..e432af073a65 100755
--- a/scripts/makelst
+++ b/scripts/makelst
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # A script to dump mixed source code & assembly
 # with correct relocations from System.map
 # Requires the following lines in makefile:
diff --git a/scripts/mkcompile_h b/scripts/mkcompile_h
index fd8fdb91581d..959199c3147e 100755
--- a/scripts/mkcompile_h
+++ b/scripts/mkcompile_h
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 TARGET=$1
 ARCH=$2
diff --git a/scripts/mkmakefile b/scripts/mkmakefile
index 84af27bf0f99..e19d6565f245 100755
--- a/scripts/mkmakefile
+++ b/scripts/mkmakefile
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Generates a small Makefile used in the root of the output
 # directory, to allow make to be started from there.
 # The Makefile also allow for more convinient build of external modules
diff --git a/scripts/mkuboot.sh b/scripts/mkuboot.sh
index 446739c7843a..4b1fe09e9042 100755
--- a/scripts/mkuboot.sh
+++ b/scripts/mkuboot.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 #
 # Build U-Boot image when `mkimage' tool is available.
diff --git a/scripts/mkversion b/scripts/mkversion
deleted file mode 100644
index c12addc9c7ef..000000000000
--- a/scripts/mkversion
+++ /dev/null
@@ -1,6 +0,0 @@
-if [ ! -f .version ]
-then
-    echo 1
-else
-    expr 0`cat .version` + 1
-fi
diff --git a/scripts/mod/Makefile b/scripts/mod/Makefile
index b497d9764dcf..42c5d50f2bcc 100644
--- a/scripts/mod/Makefile
+++ b/scripts/mod/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OBJECT_FILES_NON_STANDARD := y
 
 hostprogs-y	:= modpost mk_elfconfig
diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
index e4d90e50f6fe..6d0193a3c591 100644
--- a/scripts/mod/devicetable-offsets.c
+++ b/scripts/mod/devicetable-offsets.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kbuild.h>
 #include <linux/mod_devicetable.h>
 
diff --git a/scripts/mod/mk_elfconfig.c b/scripts/mod/mk_elfconfig.c
index a4fd71d71d65..680eade89be1 100644
--- a/scripts/mod/mk_elfconfig.c
+++ b/scripts/mod/mk_elfconfig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index b920d186ad4a..f51cf977c65b 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -47,6 +47,12 @@ enum export {
 	export_unused_gpl, export_gpl_future, export_unknown
 };
 
+/* In kernel, this size is defined in linux/module.h;
+ * here we use Elf_Addr instead of long for covering cross-compile
+ */
+
+#define MODULE_NAME_LEN (64 - sizeof(Elf_Addr))
+
 #define PRINTF __attribute__ ((format (printf, 1, 2)))
 
 PRINTF void fatal(const char *fmt, ...)
@@ -1957,7 +1963,7 @@ static void read_symbols(char *modname)
 	}
 
 	license = get_modinfo(info.modinfo, info.modinfo_len, "license");
-	if (info.modinfo && !license && !is_vmlinux(modname))
+	if (!license && !is_vmlinux(modname))
 		warn("modpost: missing MODULE_LICENSE() in %s\n"
 		     "see include/linux/module.h for "
 		     "more information\n", modname);
@@ -2111,6 +2117,23 @@ static void check_exports(struct module *mod)
 	}
 }
 
+static int check_modname_len(struct module *mod)
+{
+	const char *mod_name;
+
+	mod_name = strrchr(mod->name, '/');
+	if (mod_name == NULL)
+		mod_name = mod->name;
+	else
+		mod_name++;
+	if (strlen(mod_name) >= MODULE_NAME_LEN) {
+		merror("module name is too long [%s.ko]\n", mod->name);
+		return 1;
+	}
+
+	return 0;
+}
+
 /**
  * Header for the generated file
  **/
@@ -2150,11 +2173,6 @@ static void add_staging_flag(struct buffer *b, const char *name)
 		buf_printf(b, "\nMODULE_INFO(staging, \"Y\");\n");
 }
 
-/* In kernel, this size is defined in linux/module.h;
- * here we use Elf_Addr instead of long for covering cross-compile
- */
-#define MODULE_NAME_LEN (64 - sizeof(Elf_Addr))
-
 /**
  * Record CRCs for unresolved symbols
  **/
@@ -2485,6 +2503,7 @@ int main(int argc, char **argv)
 
 		buf.pos = 0;
 
+		err |= check_modname_len(mod);
 		add_header(&buf, mod);
 		add_intree_flag(&buf, !external_module);
 		add_staging_flag(&buf, mod->name);
diff --git a/scripts/mod/modpost.h b/scripts/mod/modpost.h
index 6a5e1515123b..8453d6ac2f77 100644
--- a/scripts/mod/modpost.h
+++ b/scripts/mod/modpost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <stdio.h>
 #include <stdlib.h>
 #include <stdarg.h>
diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index 71b4a8af9d4d..73f9f3192b9f 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -50,8 +50,6 @@ rpm-pkg rpm: FORCE
 	$(MAKE) clean
 	$(CONFIG_SHELL) $(MKSPEC) >$(objtree)/kernel.spec
 	$(call cmd,src_tar,$(KERNELPATH),kernel.spec)
-	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
-	mv -f $(objtree)/.tmp_version $(objtree)/.version
 	rpmbuild $(RPMOPTS) --target $(UTS_MACHINE) -ta $(KERNELPATH).tar.gz
 	rm $(KERNELPATH).tar.gz kernel.spec
 
@@ -60,9 +58,6 @@ rpm-pkg rpm: FORCE
 binrpm-pkg: FORCE
 	$(MAKE) KBUILD_SRC=
 	$(CONFIG_SHELL) $(MKSPEC) prebuilt > $(objtree)/binkernel.spec
-	$(CONFIG_SHELL) $(srctree)/scripts/mkversion > $(objtree)/.tmp_version
-	mv -f $(objtree)/.tmp_version $(objtree)/.version
-
 	rpmbuild $(RPMOPTS) --define "_builddir $(objtree)" --target \
 		$(UTS_MACHINE) -bb $(objtree)/binkernel.spec
 	rm binkernel.spec
diff --git a/scripts/package/builddeb b/scripts/package/builddeb
index aad67000e4dd..0bc87473f68f 100755
--- a/scripts/package/builddeb
+++ b/scripts/package/builddeb
@@ -92,12 +92,10 @@ else
 fi
 sourcename=$KDEB_SOURCENAME
 tmpdir="$objtree/debian/tmp"
-fwdir="$objtree/debian/fwtmp"
 kernel_headers_dir="$objtree/debian/hdrtmp"
 libc_headers_dir="$objtree/debian/headertmp"
 dbg_dir="$objtree/debian/dbgtmp"
 packagename=linux-image-$version
-fwpackagename=linux-firmware-image-$version
 kernel_headers_packagename=linux-headers-$version
 libc_headers_packagename=linux-libc-dev
 dbg_packagename=$packagename-dbg
@@ -126,10 +124,9 @@ esac
 BUILD_DEBUG="$(grep -s '^CONFIG_DEBUG_INFO=y' $KCONFIG_CONFIG || true)"
 
 # Setup the directory structure
-rm -rf "$tmpdir" "$fwdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
+rm -rf "$tmpdir" "$kernel_headers_dir" "$libc_headers_dir" "$dbg_dir" $objtree/debian/files
 mkdir -m 755 -p "$tmpdir/DEBIAN"
 mkdir -p "$tmpdir/lib" "$tmpdir/boot"
-mkdir -p "$fwdir/lib/firmware/$version/"
 mkdir -p "$kernel_headers_dir/lib/modules/$version/"
 
 # Build and install the kernel
@@ -306,7 +303,6 @@ else
 	cat <<EOF >> debian/control
 
 Package: $packagename
-Suggests: $fwpackagename
 Architecture: any
 Description: Linux kernel, version $version
  This package contains the Linux kernel, modules and corresponding other
@@ -345,22 +341,6 @@ Description: Linux kernel headers for $KERNELRELEASE on \${kernel:debarch}
  This is useful for people who need to build external modules
 EOF
 
-# Do we have firmware? Move it out of the way and build it into a package.
-if [ -e "$tmpdir/lib/firmware" ]; then
-	mv "$tmpdir/lib/firmware"/* "$fwdir/lib/firmware/$version/"
-	rmdir "$tmpdir/lib/firmware"
-
-	cat <<EOF >> debian/control
-
-Package: $fwpackagename
-Architecture: all
-Description: Linux kernel firmware, version $version
- This package contains firmware from the Linux kernel, version $version.
-EOF
-
-	create_package "$fwpackagename" "$fwdir"
-fi
-
 cat <<EOF >> debian/control
 
 Package: $libc_headers_packagename
diff --git a/scripts/package/buildtar b/scripts/package/buildtar
index e046bff33589..e8cc72a51b32 100755
--- a/scripts/package/buildtar
+++ b/scripts/package/buildtar
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 #
 # buildtar 0.0.4
@@ -24,20 +25,19 @@ tarball="${objtree}/linux-${KERNELRELEASE}-${ARCH}.tar"
 #
 case "${1}" in
 	tar-pkg)
-		compress="cat"
-		file_ext=""
+		opts=
 		;;
 	targz-pkg)
-		compress="gzip"
-		file_ext=".gz"
+		opts=--gzip
+		tarball=${tarball}.gz
 		;;
 	tarbz2-pkg)
-		compress="bzip2"
-		file_ext=".bz2"
+		opts=--bzip2
+		tarball=${tarball}.bz2
 		;;
 	tarxz-pkg)
-		compress="xz"
-		file_ext=".xz"
+		opts=--xz
+		tarball=${tarball}.xz
 		;;
 	*)
 		echo "Unknown tarball target \"${1}\" requested, please add it to ${0}." >&2
@@ -51,13 +51,14 @@ esac
 #
 rm -rf -- "${tmpdir}"
 mkdir -p -- "${tmpdir}/boot"
-
+dirs=boot
 
 #
 # Try to install modules
 #
-if grep -q '^CONFIG_MODULES=y' "${objtree}/.config"; then
+if grep -q '^CONFIG_MODULES=y' "${KCONFIG_CONFIG}"; then
 	make ARCH="${ARCH}" O="${objtree}" KBUILD_SRC= INSTALL_MOD_PATH="${tmpdir}" modules_install
+	dirs="$dirs lib"
 fi
 
 
@@ -65,7 +66,7 @@ fi
 # Install basic kernel files
 #
 cp -v -- "${objtree}/System.map" "${tmpdir}/boot/System.map-${KERNELRELEASE}"
-cp -v -- "${objtree}/.config" "${tmpdir}/boot/config-${KERNELRELEASE}"
+cp -v -- "${KCONFIG_CONFIG}" "${tmpdir}/boot/config-${KERNELRELEASE}"
 cp -v -- "${objtree}/vmlinux" "${tmpdir}/boot/vmlinux-${KERNELRELEASE}"
 
 
@@ -124,14 +125,12 @@ esac
 #
 # Create the tarball
 #
-(
-	opts=
-	if tar --owner=root --group=root --help >/dev/null 2>&1; then
-		opts="--owner=root --group=root"
-	fi
-	tar cf - -C "$tmpdir" boot/ lib/ $opts | ${compress} > "${tarball}${file_ext}"
-)
+if tar --owner=root --group=root --help >/dev/null 2>&1; then
+	opts="$opts --owner=root --group=root"
+fi
+
+tar cf $tarball -C $tmpdir $opts $dirs
 
-echo "Tarball successfully created in ${tarball}${file_ext}"
+echo "Tarball successfully created in $tarball"
 
 exit 0
diff --git a/scripts/package/mkspec b/scripts/package/mkspec
index bb43f153fd8e..f47f17aae135 100755
--- a/scripts/package/mkspec
+++ b/scripts/package/mkspec
@@ -27,9 +27,7 @@ __KERNELRELEASE=`echo $KERNELRELEASE | sed -e "s/-/_/g"`
 echo "Name: kernel"
 echo "Summary: The Linux Kernel"
 echo "Version: $__KERNELRELEASE"
-# we need to determine the NEXT version number so that uname and
-# rpm -q will agree
-echo "Release: `. $srctree/scripts/mkversion`"
+echo "Release: $(cat .version 2>/dev/null || echo 1)"
 echo "License: GPL"
 echo "Group: System Environment/Kernel"
 echo "Vendor: The Linux Community"
@@ -77,7 +75,7 @@ fi
 echo "%build"
 
 if ! $PREBUILT; then
-echo "make clean && make %{?_smp_mflags}"
+echo "make clean && make %{?_smp_mflags} KBUILD_BUILD_VERSION=%{release}"
 echo ""
 fi
 
@@ -88,11 +86,8 @@ echo 'mkdir -p $RPM_BUILD_ROOT/boot/efi $RPM_BUILD_ROOT/lib/modules'
 echo "%else"
 echo 'mkdir -p $RPM_BUILD_ROOT/boot $RPM_BUILD_ROOT/lib/modules'
 echo "%endif"
-echo 'mkdir -p $RPM_BUILD_ROOT'"/lib/firmware/$KERNELRELEASE"
 
-echo 'INSTALL_MOD_PATH=$RPM_BUILD_ROOT make %{?_smp_mflags} KBUILD_SRC= mod-fw= modules_install'
-echo 'INSTALL_FW_PATH=$RPM_BUILD_ROOT'"/lib/firmware/$KERNELRELEASE"
-echo 'make INSTALL_FW_PATH=$INSTALL_FW_PATH' firmware_install
+echo 'INSTALL_MOD_PATH=$RPM_BUILD_ROOT make %{?_smp_mflags} KBUILD_SRC= modules_install'
 echo "%ifarch ia64"
 echo 'cp $KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/efi/vmlinuz-$KERNELRELEASE"
 echo 'ln -s '"efi/vmlinuz-$KERNELRELEASE" '$RPM_BUILD_ROOT'"/boot/"
@@ -119,7 +114,7 @@ if ! $PREBUILT; then
 echo 'rm -f $RPM_BUILD_ROOT'"/lib/modules/$KERNELRELEASE/build"
 echo 'rm -f $RPM_BUILD_ROOT'"/lib/modules/$KERNELRELEASE/source"
 echo "mkdir -p "'$RPM_BUILD_ROOT'"/usr/src/kernels/$KERNELRELEASE"
-echo "EXCLUDES=\"$RCS_TAR_IGNORE --exclude .tmp_versions --exclude=*vmlinux* --exclude=*.o --exclude=*.ko --exclude=*.cmd --exclude=Documentation --exclude=firmware --exclude .config.old --exclude .missing-syscalls.d\""
+echo "EXCLUDES=\"$RCS_TAR_IGNORE --exclude .tmp_versions --exclude=*vmlinux* --exclude=*.o --exclude=*.ko --exclude=*.cmd --exclude=Documentation --exclude .config.old --exclude .missing-syscalls.d\""
 echo "tar "'$EXCLUDES'" -cf- . | (cd "'$RPM_BUILD_ROOT'"/usr/src/kernels/$KERNELRELEASE;tar xvf -)"
 echo 'cd $RPM_BUILD_ROOT'"/lib/modules/$KERNELRELEASE"
 echo "ln -sf /usr/src/kernels/$KERNELRELEASE build"
@@ -154,7 +149,6 @@ echo '%defattr (-, root, root)'
 echo "/lib/modules/$KERNELRELEASE"
 echo "%exclude /lib/modules/$KERNELRELEASE/build"
 echo "%exclude /lib/modules/$KERNELRELEASE/source"
-echo "/lib/firmware/$KERNELRELEASE"
 echo "/boot/*"
 echo ""
 echo "%files headers"
diff --git a/scripts/parse-maintainers.pl b/scripts/parse-maintainers.pl
index e40b53db7f9f..5dbd2faa2449 100644
--- a/scripts/parse-maintainers.pl
+++ b/scripts/parse-maintainers.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/perl -w
+# SPDX-License-Identifier: GPL-2.0
 
 use strict;
 
diff --git a/scripts/patch-kernel b/scripts/patch-kernel
index 49b4241e814a..033d5916797d 100755
--- a/scripts/patch-kernel
+++ b/scripts/patch-kernel
@@ -1,4 +1,5 @@
 #! /bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Script to apply kernel patches.
 #   usage: patch-kernel [ sourcedir [ patchdir [ stopversion ] [ -acxx ] ] ]
 #     The source directory defaults to /usr/src/linux, and the patch
diff --git a/scripts/profile2linkerlist.pl b/scripts/profile2linkerlist.pl
index f23d7be94394..316e71918ac8 100755
--- a/scripts/profile2linkerlist.pl
+++ b/scripts/profile2linkerlist.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 
 #
 # Takes a (sorted) output of readprofile and turns it into a list suitable for
diff --git a/scripts/prune-kernel b/scripts/prune-kernel
index ab5034e1d081..e8aa940bc0a9 100755
--- a/scripts/prune-kernel
+++ b/scripts/prune-kernel
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 # because I use CONFIG_LOCALVERSION_AUTO, not the same version again and
 # again, /boot and /lib/modules/ eventually fill up.
diff --git a/scripts/selinux/genheaders/Makefile b/scripts/selinux/genheaders/Makefile
index 6fc2b8789a0b..e8c533140981 100644
--- a/scripts/selinux/genheaders/Makefile
+++ b/scripts/selinux/genheaders/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 hostprogs-y	:= genheaders
 HOST_EXTRACFLAGS += \
 	-I$(srctree)/include/uapi -I$(srctree)/include \
diff --git a/scripts/selinux/genheaders/genheaders.c b/scripts/selinux/genheaders/genheaders.c
index 672b069dcfea..fa48fabcb330 100644
--- a/scripts/selinux/genheaders/genheaders.c
+++ b/scripts/selinux/genheaders/genheaders.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 /* NOTE: we really do want to use the kernel headers here */
 #define __EXPORTED_HEADERS__
diff --git a/scripts/selinux/install_policy.sh b/scripts/selinux/install_policy.sh
index f6a0ce71015f..0b86c47baf7d 100755
--- a/scripts/selinux/install_policy.sh
+++ b/scripts/selinux/install_policy.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 if [ `id -u` -ne 0 ]; then
 	echo "$0: must be root to install the selinux policy"
 	exit 1
diff --git a/scripts/selinux/mdp/Makefile b/scripts/selinux/mdp/Makefile
index d6a83cafe59f..e9c92db7e2a3 100644
--- a/scripts/selinux/mdp/Makefile
+++ b/scripts/selinux/mdp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 hostprogs-y	:= mdp
 HOST_EXTRACFLAGS += \
 	-I$(srctree)/include/uapi -I$(srctree)/include \
diff --git a/scripts/setlocalversion b/scripts/setlocalversion
index 966dd3924ea9..71f39410691b 100755
--- a/scripts/setlocalversion
+++ b/scripts/setlocalversion
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # This scripts adds local version information from the version
 # control systems git, mercurial (hg) and subversion (svn).
diff --git a/scripts/spelling.txt b/scripts/spelling.txt
index 400ef35169c5..aa0cc49ad1ad 100644
--- a/scripts/spelling.txt
+++ b/scripts/spelling.txt
@@ -53,6 +53,7 @@ acumulator||accumulator
 adapater||adapter
 addional||additional
 additionaly||additionally
+additonal||additional
 addres||address
 adddress||address
 addreses||addresses
@@ -67,6 +68,8 @@ adviced||advised
 afecting||affecting
 againt||against
 agaist||against
+aggreataon||aggregation
+aggreation||aggregation
 albumns||albums
 alegorical||allegorical
 algined||aligned
@@ -80,6 +83,8 @@ aligment||alignment
 alignement||alignment
 allign||align
 alligned||aligned
+alllocate||allocate
+alloated||allocated
 allocatote||allocate
 allocatrd||allocated
 allocte||allocate
@@ -171,6 +176,7 @@ availale||available
 availavility||availability
 availble||available
 availiable||available
+availible||available
 avalable||available
 avaliable||available
 aysnc||async
@@ -203,6 +209,7 @@ broadcat||broadcast
 cacluated||calculated
 caculation||calculation
 calender||calendar
+calescing||coalescing
 calle||called
 callibration||calibration
 calucate||calculate
@@ -210,6 +217,7 @@ calulate||calculate
 cancelation||cancellation
 cancle||cancel
 capabilites||capabilities
+capabilty||capability
 capabitilies||capabilities
 capatibilities||capabilities
 capapbilities||capabilities
@@ -302,6 +310,7 @@ containts||contains
 contaisn||contains
 contant||contact
 contence||contents
+continious||continuous
 continous||continuous
 continously||continuously
 continueing||continuing
@@ -393,6 +402,7 @@ differrence||difference
 diffrent||different
 diffrentiate||differentiate
 difinition||definition
+dimesions||dimensions
 diplay||display
 direectly||directly
 disassocation||disassociation
@@ -449,6 +459,7 @@ equiped||equipped
 equivelant||equivalent
 equivilant||equivalent
 eror||error
+errorr||error
 estbalishment||establishment
 etsablishment||establishment
 etsbalishment||establishment
@@ -481,6 +492,7 @@ failied||failed
 faillure||failure
 failue||failure
 failuer||failure
+failng||failing
 faireness||fairness
 falied||failed
 faliure||failure
@@ -493,6 +505,7 @@ fetaure||feature
 fetaures||features
 fileystem||filesystem
 fimware||firmware
+firware||firmware
 finanize||finalize
 findn||find
 finilizes||finalizes
@@ -502,6 +515,7 @@ folloing||following
 followign||following
 followings||following
 follwing||following
+fonud||found
 forseeable||foreseeable
 forse||force
 fortan||fortran
@@ -532,6 +546,7 @@ grabing||grabbing
 grahical||graphical
 grahpical||graphical
 grapic||graphic
+grranted||granted
 guage||gauge
 guarenteed||guaranteed
 guarentee||guarantee
@@ -543,6 +558,7 @@ happend||happened
 harware||hardware
 heirarchically||hierarchically
 helpfull||helpful
+hybernate||hibernate
 hierachy||hierarchy
 hierarchie||hierarchy
 howver||however
@@ -565,16 +581,19 @@ implemenation||implementation
 implementaiton||implementation
 implementated||implemented
 implemention||implementation
+implementd||implemented
 implemetation||implementation
 implemntation||implementation
 implentation||implementation
 implmentation||implementation
 implmenting||implementing
+incative||inactive
 incomming||incoming
 incompatabilities||incompatibilities
 incompatable||incompatible
 inconsistant||inconsistent
 increas||increase
+incremeted||incremented
 incrment||increment
 indendation||indentation
 indended||intended
@@ -619,6 +638,7 @@ interger||integer
 intermittant||intermittent
 internel||internal
 interoprability||interoperability
+interuupt||interrupt
 interrface||interface
 interrrupt||interrupt
 interrup||interrupt
@@ -638,8 +658,10 @@ intrrupt||interrupt
 intterrupt||interrupt
 intuative||intuitive
 invaid||invalid
+invald||invalid
 invalde||invalid
 invalide||invalid
+invalidiate||invalidate
 invalud||invalid
 invididual||individual
 invokation||invocation
@@ -713,6 +735,7 @@ misformed||malformed
 mispelled||misspelled
 mispelt||misspelt
 mising||missing
+mismactch||mismatch
 missmanaged||mismanaged
 missmatch||mismatch
 miximum||maximum
@@ -731,6 +754,7 @@ multidimensionnal||multidimensional
 multple||multiple
 mumber||number
 muticast||multicast
+mutilcast||multicast
 mutiple||multiple
 mutli||multi
 nams||names
@@ -834,6 +858,7 @@ posible||possible
 positon||position
 possibilites||possibilities
 powerfull||powerful
+preample||preamble
 preapre||prepare
 preceeded||preceded
 preceeding||preceding
@@ -1059,6 +1084,7 @@ sturcture||structure
 subdirectoires||subdirectories
 suble||subtle
 substract||subtract
+submition||submission
 succesfully||successfully
 succesful||successful
 successed||succeeded
@@ -1078,6 +1104,7 @@ suppoted||supported
 suppported||supported
 suppport||support
 supress||suppress
+surpressed||suppressed
 surpresses||suppresses
 susbsystem||subsystem
 suspeneded||suspended
@@ -1091,6 +1118,7 @@ swithced||switched
 swithcing||switching
 swithed||switched
 swithing||switching
+swtich||switch
 symetric||symmetric
 synax||syntax
 synchonized||synchronized
@@ -1111,7 +1139,9 @@ therfore||therefore
 thier||their
 threds||threads
 threshhold||threshold
+thresold||threshold
 throught||through
+troughput||throughput
 thses||these
 tiggered||triggered
 tipically||typically
@@ -1120,6 +1150,7 @@ tmis||this
 torerable||tolerable
 tramsmitted||transmitted
 tramsmit||transmit
+tranasction||transaction
 tranfer||transfer
 transciever||transceiver
 transferd||transferred
@@ -1133,6 +1164,7 @@ trasmission||transmission
 treshold||threshold
 trigerring||triggering
 trun||turn
+tunning||tuning
 ture||true
 tyep||type
 udpate||update
@@ -1199,6 +1231,7 @@ visiters||visitors
 vitual||virtual
 wakeus||wakeups
 wating||waiting
+wiat||wait
 wether||whether
 whataver||whatever
 whcih||which
diff --git a/scripts/stackdelta b/scripts/stackdelta
index 20a79f19a111..44d2dfd6216f 100755
--- a/scripts/stackdelta
+++ b/scripts/stackdelta
@@ -1,4 +1,5 @@
 #!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0
 
 # Read two files produced by the stackusage script, and show the
 # delta between them.
diff --git a/scripts/stackusage b/scripts/stackusage
index 8cf26640ef8a..56ef1ab670ac 100755
--- a/scripts/stackusage
+++ b/scripts/stackusage
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 outfile=""
 now=`date +%s`
diff --git a/scripts/tracing/ftrace-bisect.sh b/scripts/tracing/ftrace-bisect.sh
index 9ff8ac5fc53c..926701162bc8 100755
--- a/scripts/tracing/ftrace-bisect.sh
+++ b/scripts/tracing/ftrace-bisect.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Here's how to use this:
 #
diff --git a/scripts/ver_linux b/scripts/ver_linux
index b51de8a7e2a3..545ec7388eb7 100755
--- a/scripts/ver_linux
+++ b/scripts/ver_linux
@@ -1,4 +1,5 @@
 #!/usr/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 # Before running this script please ensure that your PATH is
 # typical as you use for compilation/installation. I use
 # /bin /sbin /usr/bin /usr/sbin /usr/local/bin, but it may
diff --git a/scripts/xen-hypercalls.sh b/scripts/xen-hypercalls.sh
index 676d9226814f..f18b00843df3 100644
--- a/scripts/xen-hypercalls.sh
+++ b/scripts/xen-hypercalls.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 out="$1"
 shift
 in="$@"
diff --git a/security/Makefile b/security/Makefile
index f2d71cdb8e19..4d2d3782ddef 100644
--- a/security/Makefile
+++ b/security/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for the kernel security code
 #
diff --git a/security/apparmor/Makefile b/security/apparmor/Makefile
index a16b195274de..9a6b4033d52b 100644
--- a/security/apparmor/Makefile
+++ b/security/apparmor/Makefile
@@ -1,10 +1,11 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for AppArmor Linux Security Module
 #
 obj-$(CONFIG_SECURITY_APPARMOR) += apparmor.o
 
 apparmor-y := apparmorfs.o audit.o capability.o context.o ipc.o lib.o match.o \
               path.o domain.o policy.o policy_unpack.o procattr.o lsm.o \
-              resource.o secid.o file.o policy_ns.o label.o
+              resource.o secid.o file.o policy_ns.o label.o mount.o
 apparmor-$(CONFIG_SECURITY_APPARMOR_HASH) += crypto.o
 
 clean-files := capability_names.h rlim_names.h
diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
index 853c2ec8e0c9..caaf51dda648 100644
--- a/security/apparmor/apparmorfs.c
+++ b/security/apparmor/apparmorfs.c
@@ -32,6 +32,7 @@
 #include "include/audit.h"
 #include "include/context.h"
 #include "include/crypto.h"
+#include "include/ipc.h"
 #include "include/policy_ns.h"
 #include "include/label.h"
 #include "include/policy.h"
@@ -248,8 +249,10 @@ static struct dentry *aafs_create(const char *name, umode_t mode,
 
 	inode_lock(dir);
 	dentry = lookup_one_len(name, parent, strlen(name));
-	if (IS_ERR(dentry))
+	if (IS_ERR(dentry)) {
+		error = PTR_ERR(dentry);
 		goto fail_lock;
+	}
 
 	if (d_really_is_positive(dentry)) {
 		error = -EEXIST;
@@ -1443,6 +1446,10 @@ void __aafs_profile_migrate_dents(struct aa_profile *old,
 {
 	int i;
 
+	AA_BUG(!old);
+	AA_BUG(!new);
+	AA_BUG(!mutex_is_locked(&profiles_ns(old)->lock));
+
 	for (i = 0; i < AAFS_PROF_SIZEOF; i++) {
 		new->dents[i] = old->dents[i];
 		if (new->dents[i])
@@ -1506,6 +1513,9 @@ int __aafs_profile_mkdir(struct aa_profile *profile, struct dentry *parent)
 	struct dentry *dent = NULL, *dir;
 	int error;
 
+	AA_BUG(!profile);
+	AA_BUG(!mutex_is_locked(&profiles_ns(profile)->lock));
+
 	if (!parent) {
 		struct aa_profile *p;
 		p = aa_deref_parent(profile);
@@ -1731,6 +1741,7 @@ void __aafs_ns_rmdir(struct aa_ns *ns)
 
 	if (!ns)
 		return;
+	AA_BUG(!mutex_is_locked(&ns->lock));
 
 	list_for_each_entry(child, &ns->base.profiles, base.list)
 		__aafs_profile_rmdir(child);
@@ -1903,6 +1914,10 @@ static struct aa_ns *__next_ns(struct aa_ns *root, struct aa_ns *ns)
 {
 	struct aa_ns *parent, *next;
 
+	AA_BUG(!root);
+	AA_BUG(!ns);
+	AA_BUG(ns != root && !mutex_is_locked(&ns->parent->lock));
+
 	/* is next namespace a child */
 	if (!list_empty(&ns->sub_ns)) {
 		next = list_first_entry(&ns->sub_ns, typeof(*ns), base.list);
@@ -1937,6 +1952,9 @@ static struct aa_ns *__next_ns(struct aa_ns *root, struct aa_ns *ns)
 static struct aa_profile *__first_profile(struct aa_ns *root,
 					  struct aa_ns *ns)
 {
+	AA_BUG(!root);
+	AA_BUG(ns && !mutex_is_locked(&ns->lock));
+
 	for (; ns; ns = __next_ns(root, ns)) {
 		if (!list_empty(&ns->base.profiles))
 			return list_first_entry(&ns->base.profiles,
@@ -1959,6 +1977,8 @@ static struct aa_profile *__next_profile(struct aa_profile *p)
 	struct aa_profile *parent;
 	struct aa_ns *ns = p->ns;
 
+	AA_BUG(!mutex_is_locked(&profiles_ns(p)->lock));
+
 	/* is next profile a child */
 	if (!list_empty(&p->base.profiles))
 		return list_first_entry(&p->base.profiles, typeof(*p),
@@ -2127,6 +2147,11 @@ static struct aa_sfs_entry aa_sfs_entry_ptrace[] = {
 	{ }
 };
 
+static struct aa_sfs_entry aa_sfs_entry_signal[] = {
+	AA_SFS_FILE_STRING("mask", AA_SFS_SIG_MASK),
+	{ }
+};
+
 static struct aa_sfs_entry aa_sfs_entry_domain[] = {
 	AA_SFS_FILE_BOOLEAN("change_hat",	1),
 	AA_SFS_FILE_BOOLEAN("change_hatv",	1),
@@ -2151,9 +2176,14 @@ static struct aa_sfs_entry aa_sfs_entry_policy[] = {
 	{ }
 };
 
+static struct aa_sfs_entry aa_sfs_entry_mount[] = {
+	AA_SFS_FILE_STRING("mask", "mount umount pivot_root"),
+	{ }
+};
+
 static struct aa_sfs_entry aa_sfs_entry_ns[] = {
 	AA_SFS_FILE_BOOLEAN("profile",		1),
-	AA_SFS_FILE_BOOLEAN("pivot_root",	1),
+	AA_SFS_FILE_BOOLEAN("pivot_root",	0),
 	{ }
 };
 
@@ -2172,22 +2202,24 @@ static struct aa_sfs_entry aa_sfs_entry_features[] = {
 	AA_SFS_DIR("policy",			aa_sfs_entry_policy),
 	AA_SFS_DIR("domain",			aa_sfs_entry_domain),
 	AA_SFS_DIR("file",			aa_sfs_entry_file),
+	AA_SFS_DIR("mount",			aa_sfs_entry_mount),
 	AA_SFS_DIR("namespaces",		aa_sfs_entry_ns),
 	AA_SFS_FILE_U64("capability",		VFS_CAP_FLAGS_MASK),
 	AA_SFS_DIR("rlimit",			aa_sfs_entry_rlimit),
 	AA_SFS_DIR("caps",			aa_sfs_entry_caps),
 	AA_SFS_DIR("ptrace",			aa_sfs_entry_ptrace),
+	AA_SFS_DIR("signal",			aa_sfs_entry_signal),
 	AA_SFS_DIR("query",			aa_sfs_entry_query),
 	{ }
 };
 
 static struct aa_sfs_entry aa_sfs_entry_apparmor[] = {
-	AA_SFS_FILE_FOPS(".access", 0640, &aa_sfs_access),
+	AA_SFS_FILE_FOPS(".access", 0666, &aa_sfs_access),
 	AA_SFS_FILE_FOPS(".stacked", 0444, &seq_ns_stacked_fops),
 	AA_SFS_FILE_FOPS(".ns_stacked", 0444, &seq_ns_nsstacked_fops),
-	AA_SFS_FILE_FOPS(".ns_level", 0666, &seq_ns_level_fops),
-	AA_SFS_FILE_FOPS(".ns_name", 0640, &seq_ns_name_fops),
-	AA_SFS_FILE_FOPS("profiles", 0440, &aa_sfs_profiles_fops),
+	AA_SFS_FILE_FOPS(".ns_level", 0444, &seq_ns_level_fops),
+	AA_SFS_FILE_FOPS(".ns_name", 0444, &seq_ns_name_fops),
+	AA_SFS_FILE_FOPS("profiles", 0444, &aa_sfs_profiles_fops),
 	AA_SFS_DIR("features", aa_sfs_entry_features),
 	{ }
 };
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 17a601c67b62..dd754b7850a8 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -374,8 +374,8 @@ static const char *next_name(int xtype, const char *name)
  *
  * Returns: refcounted label, or NULL on failure (MAYBE NULL)
  */
-static struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,
-				       const char **name)
+struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,
+				const char **name)
 {
 	struct aa_label *label = NULL;
 	u32 xtype = xindex & AA_X_TYPE_MASK;
diff --git a/security/apparmor/include/apparmor.h b/security/apparmor/include/apparmor.h
index aaf893f4e4f5..829082c35faa 100644
--- a/security/apparmor/include/apparmor.h
+++ b/security/apparmor/include/apparmor.h
@@ -27,7 +27,9 @@
 #define AA_CLASS_NET		4
 #define AA_CLASS_RLIMITS	5
 #define AA_CLASS_DOMAIN		6
+#define AA_CLASS_MOUNT		7
 #define AA_CLASS_PTRACE		9
+#define AA_CLASS_SIGNAL		10
 #define AA_CLASS_LABEL		16
 
 #define AA_CLASS_LAST		AA_CLASS_LABEL
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
index c68839a44351..620e81169659 100644
--- a/security/apparmor/include/audit.h
+++ b/security/apparmor/include/audit.h
@@ -71,6 +71,10 @@ enum audit_type {
 #define OP_FMPROT "file_mprotect"
 #define OP_INHERIT "file_inherit"
 
+#define OP_PIVOTROOT "pivotroot"
+#define OP_MOUNT "mount"
+#define OP_UMOUNT "umount"
+
 #define OP_CREATE "create"
 #define OP_POST_CREATE "post_create"
 #define OP_BIND "bind"
@@ -86,6 +90,7 @@ enum audit_type {
 #define OP_SHUTDOWN "socket_shutdown"
 
 #define OP_PTRACE "ptrace"
+#define OP_SIGNAL "signal"
 
 #define OP_EXEC "exec"
 
@@ -122,14 +127,22 @@ struct apparmor_audit_data {
 			} fs;
 		};
 		struct {
-			const char *name;
-			long pos;
+			struct aa_profile *profile;
 			const char *ns;
+			long pos;
 		} iface;
+		int signal;
 		struct {
 			int rlim;
 			unsigned long max;
 		} rlim;
+		struct {
+			const char *src_name;
+			const char *type;
+			const char *trans;
+			const char *data;
+			unsigned long flags;
+		} mnt;
 	};
 };
 
diff --git a/security/apparmor/include/domain.h b/security/apparmor/include/domain.h
index 24c5976d6143..ac9862ff7cdf 100644
--- a/security/apparmor/include/domain.h
+++ b/security/apparmor/include/domain.h
@@ -15,6 +15,8 @@
 #include <linux/binfmts.h>
 #include <linux/types.h>
 
+#include "label.h"
+
 #ifndef __AA_DOMAIN_H
 #define __AA_DOMAIN_H
 
@@ -29,6 +31,9 @@ struct aa_domain {
 #define AA_CHANGE_ONEXEC  4
 #define AA_CHANGE_STACK 8
 
+struct aa_label *x_table_lookup(struct aa_profile *profile, u32 xindex,
+				const char **name);
+
 int apparmor_bprm_set_creds(struct linux_binprm *bprm);
 
 void aa_free_domain_entries(struct aa_domain *domain);
diff --git a/security/apparmor/include/ipc.h b/security/apparmor/include/ipc.h
index 656fdb81c8a0..5ffc218d1e74 100644
--- a/security/apparmor/include/ipc.h
+++ b/security/apparmor/include/ipc.h
@@ -27,8 +27,14 @@ struct aa_profile;
 
 #define AA_PTRACE_PERM_MASK (AA_PTRACE_READ | AA_PTRACE_TRACE | \
 			     AA_MAY_BE_READ | AA_MAY_BE_TRACED)
+#define AA_SIGNAL_PERM_MASK (MAY_READ | MAY_WRITE)
+
+#define AA_SFS_SIG_MASK "hup int quit ill trap abrt bus fpe kill usr1 " \
+	"segv usr2 pipe alrm term stkflt chld cont stop stp ttin ttou urg " \
+	"xcpu xfsz vtalrm prof winch io pwr sys emt lost"
 
 int aa_may_ptrace(struct aa_label *tracer, struct aa_label *tracee,
 		  u32 request);
+int aa_may_signal(struct aa_label *sender, struct aa_label *target, int sig);
 
 #endif /* __AA_IPC_H */
diff --git a/security/apparmor/include/label.h b/security/apparmor/include/label.h
index 9a283b722755..af22dcbbcb8a 100644
--- a/security/apparmor/include/label.h
+++ b/security/apparmor/include/label.h
@@ -310,6 +310,7 @@ bool aa_update_label_name(struct aa_ns *ns, struct aa_label *label, gfp_t gfp);
 #define FLAG_SHOW_MODE 1
 #define FLAG_VIEW_SUBNS 2
 #define FLAG_HIDDEN_UNCONFINED 4
+#define FLAG_ABS_ROOT 8
 int aa_label_snxprint(char *str, size_t size, struct aa_ns *view,
 		      struct aa_label *label, int flags);
 int aa_label_asxprint(char **strp, struct aa_ns *ns, struct aa_label *label,
diff --git a/security/apparmor/include/lib.h b/security/apparmor/include/lib.h
index 436b3a722357..f546707a2bbb 100644
--- a/security/apparmor/include/lib.h
+++ b/security/apparmor/include/lib.h
@@ -19,17 +19,6 @@
 
 #include "match.h"
 
-/* Provide our own test for whether a write lock is held for asserts
- * this is because on none SMP systems write_can_lock will always
- * resolve to true, which is what you want for code making decisions
- * based on it, but wrong for asserts checking that the lock is held
- */
-#ifdef CONFIG_SMP
-#define write_is_locked(X) !write_can_lock(X)
-#else
-#define write_is_locked(X) (1)
-#endif /* CONFIG_SMP */
-
 /*
  * DEBUG remains global (no per profile flag) since it is mostly used in sysctl
  * which is not related to profile accesses.
diff --git a/security/apparmor/include/mount.h b/security/apparmor/include/mount.h
new file mode 100644
index 000000000000..25d6067fa6ef
--- /dev/null
+++ b/security/apparmor/include/mount.h
@@ -0,0 +1,54 @@
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor file mediation function definitions.
+ *
+ * Copyright 2017 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ */
+
+#ifndef __AA_MOUNT_H
+#define __AA_MOUNT_H
+
+#include <linux/fs.h>
+#include <linux/path.h>
+
+#include "domain.h"
+#include "policy.h"
+
+/* mount perms */
+#define AA_MAY_PIVOTROOT	0x01
+#define AA_MAY_MOUNT		0x02
+#define AA_MAY_UMOUNT		0x04
+#define AA_AUDIT_DATA		0x40
+#define AA_MNT_CONT_MATCH	0x40
+
+#define AA_MS_IGNORE_MASK (MS_KERNMOUNT | MS_NOSEC | MS_ACTIVE | MS_BORN)
+
+int aa_remount(struct aa_label *label, const struct path *path,
+	       unsigned long flags, void *data);
+
+int aa_bind_mount(struct aa_label *label, const struct path *path,
+		  const char *old_name, unsigned long flags);
+
+
+int aa_mount_change_type(struct aa_label *label, const struct path *path,
+			 unsigned long flags);
+
+int aa_move_mount(struct aa_label *label, const struct path *path,
+		  const char *old_name);
+
+int aa_new_mount(struct aa_label *label, const char *dev_name,
+		 const struct path *path, const char *type, unsigned long flags,
+		 void *data);
+
+int aa_umount(struct aa_label *label, struct vfsmount *mnt, int flags);
+
+int aa_pivotroot(struct aa_label *label, const struct path *old_path,
+		 const struct path *new_path);
+
+#endif /* __AA_MOUNT_H */
diff --git a/security/apparmor/include/sig_names.h b/security/apparmor/include/sig_names.h
new file mode 100644
index 000000000000..92e62fe95292
--- /dev/null
+++ b/security/apparmor/include/sig_names.h
@@ -0,0 +1,98 @@
+#include <linux/signal.h>
+
+#define SIGUNKNOWN 0
+#define MAXMAPPED_SIG 35
+/* provide a mapping of arch signal to internal signal # for mediation
+ * those that are always an alias SIGCLD for SIGCLHD and SIGPOLL for SIGIO
+ * map to the same entry those that may/or may not get a separate entry
+ */
+static const int sig_map[MAXMAPPED_SIG] = {
+	[0] = MAXMAPPED_SIG,	/* existence test */
+	[SIGHUP] = 1,
+	[SIGINT] = 2,
+	[SIGQUIT] = 3,
+	[SIGILL] = 4,
+	[SIGTRAP] = 5,		/* -, 5, - */
+	[SIGABRT] = 6,		/*  SIGIOT: -, 6, - */
+	[SIGBUS] = 7,		/* 10, 7, 10 */
+	[SIGFPE] = 8,
+	[SIGKILL] = 9,
+	[SIGUSR1] = 10,		/* 30, 10, 16 */
+	[SIGSEGV] = 11,
+	[SIGUSR2] = 12,		/* 31, 12, 17 */
+	[SIGPIPE] = 13,
+	[SIGALRM] = 14,
+	[SIGTERM] = 15,
+#ifdef SIGSTKFLT
+	[SIGSTKFLT] = 16,	/* -, 16, - */
+#endif
+	[SIGCHLD] = 17,		/* 20, 17, 18.  SIGCHLD -, -, 18 */
+	[SIGCONT] = 18,		/* 19, 18, 25 */
+	[SIGSTOP] = 19,		/* 17, 19, 23 */
+	[SIGTSTP] = 20,		/* 18, 20, 24 */
+	[SIGTTIN] = 21,		/* 21, 21, 26 */
+	[SIGTTOU] = 22,		/* 22, 22, 27 */
+	[SIGURG] = 23,		/* 16, 23, 21 */
+	[SIGXCPU] = 24,		/* 24, 24, 30 */
+	[SIGXFSZ] = 25,		/* 25, 25, 31 */
+	[SIGVTALRM] = 26,	/* 26, 26, 28 */
+	[SIGPROF] = 27,		/* 27, 27, 29 */
+	[SIGWINCH] = 28,	/* 28, 28, 20 */
+	[SIGIO] = 29,		/* SIGPOLL: 23, 29, 22 */
+	[SIGPWR] = 30,		/* 29, 30, 19.  SIGINFO 29, -, - */
+#ifdef SIGSYS
+	[SIGSYS] = 31,		/* 12, 31, 12. often SIG LOST/UNUSED */
+#endif
+#ifdef SIGEMT
+	[SIGEMT] = 32,		/* 7, - , 7 */
+#endif
+#if defined(SIGLOST) && SIGPWR != SIGLOST		/* sparc */
+	[SIGLOST] = 33,		/* unused on Linux */
+#endif
+#if defined(SIGUNUSED) && \
+    defined(SIGLOST) && defined(SIGSYS) && SIGLOST != SIGSYS
+	[SIGUNUSED] = 34,	/* -, 31, - */
+#endif
+};
+
+/* this table is ordered post sig_map[sig] mapping */
+static const char *const sig_names[MAXMAPPED_SIG + 1] = {
+	"unknown",
+	"hup",
+	"int",
+	"quit",
+	"ill",
+	"trap",
+	"abrt",
+	"bus",
+	"fpe",
+	"kill",
+	"usr1",
+	"segv",
+	"usr2",
+	"pipe",
+	"alrm",
+	"term",
+	"stkflt",
+	"chld",
+	"cont",
+	"stop",
+	"stp",
+	"ttin",
+	"ttou",
+	"urg",
+	"xcpu",
+	"xfsz",
+	"vtalrm",
+	"prof",
+	"winch",
+	"io",
+	"pwr",
+	"sys",
+	"emt",
+	"lost",
+	"unused",
+
+	"exists",	/* always last existence test mapped to MAXMAPPED_SIG */
+};
+
diff --git a/security/apparmor/ipc.c b/security/apparmor/ipc.c
index 11e66b5bbc42..7ca0032e7ba9 100644
--- a/security/apparmor/ipc.c
+++ b/security/apparmor/ipc.c
@@ -20,6 +20,7 @@
 #include "include/context.h"
 #include "include/policy.h"
 #include "include/ipc.h"
+#include "include/sig_names.h"
 
 /**
  * audit_ptrace_mask - convert mask to permission string
@@ -121,3 +122,101 @@ int aa_may_ptrace(struct aa_label *tracer, struct aa_label *tracee,
 }
 
 
+static inline int map_signal_num(int sig)
+{
+	if (sig > SIGRTMAX)
+		return SIGUNKNOWN;
+	else if (sig >= SIGRTMIN)
+		return sig - SIGRTMIN + 128;	/* rt sigs mapped to 128 */
+	else if (sig < MAXMAPPED_SIG)
+		return sig_map[sig];
+	return SIGUNKNOWN;
+}
+
+/**
+ * audit_file_mask - convert mask to permission string
+ * @buffer: buffer to write string to (NOT NULL)
+ * @mask: permission mask to convert
+ */
+static void audit_signal_mask(struct audit_buffer *ab, u32 mask)
+{
+	if (mask & MAY_READ)
+		audit_log_string(ab, "receive");
+	if (mask & MAY_WRITE)
+		audit_log_string(ab, "send");
+}
+
+/**
+ * audit_cb - call back for signal specific audit fields
+ * @ab: audit_buffer  (NOT NULL)
+ * @va: audit struct to audit values of  (NOT NULL)
+ */
+static void audit_signal_cb(struct audit_buffer *ab, void *va)
+{
+	struct common_audit_data *sa = va;
+
+	if (aad(sa)->request & AA_SIGNAL_PERM_MASK) {
+		audit_log_format(ab, " requested_mask=");
+		audit_signal_mask(ab, aad(sa)->request);
+		if (aad(sa)->denied & AA_SIGNAL_PERM_MASK) {
+			audit_log_format(ab, " denied_mask=");
+			audit_signal_mask(ab, aad(sa)->denied);
+		}
+	}
+	if (aad(sa)->signal < MAXMAPPED_SIG)
+		audit_log_format(ab, " signal=%s", sig_names[aad(sa)->signal]);
+	else
+		audit_log_format(ab, " signal=rtmin+%d",
+				 aad(sa)->signal - 128);
+	audit_log_format(ab, " peer=");
+	aa_label_xaudit(ab, labels_ns(aad(sa)->label), aad(sa)->peer,
+			FLAGS_NONE, GFP_ATOMIC);
+}
+
+/* TODO: update to handle compound name&name2, conditionals */
+static void profile_match_signal(struct aa_profile *profile, const char *label,
+				 int signal, struct aa_perms *perms)
+{
+	unsigned int state;
+
+	/* TODO: secondary cache check <profile, profile, perm> */
+	state = aa_dfa_next(profile->policy.dfa,
+			    profile->policy.start[AA_CLASS_SIGNAL],
+			    signal);
+	state = aa_dfa_match(profile->policy.dfa, state, label);
+	aa_compute_perms(profile->policy.dfa, state, perms);
+}
+
+static int profile_signal_perm(struct aa_profile *profile,
+			       struct aa_profile *peer, u32 request,
+			       struct common_audit_data *sa)
+{
+	struct aa_perms perms;
+
+	if (profile_unconfined(profile) ||
+	    !PROFILE_MEDIATES(profile, AA_CLASS_SIGNAL))
+		return 0;
+
+	aad(sa)->peer = &peer->label;
+	profile_match_signal(profile, peer->base.hname, aad(sa)->signal,
+			     &perms);
+	aa_apply_modes_to_perms(profile, &perms);
+	return aa_check_perms(profile, &perms, request, sa, audit_signal_cb);
+}
+
+static int aa_signal_cross_perm(struct aa_profile *sender,
+				struct aa_profile *target,
+				struct common_audit_data *sa)
+{
+	return xcheck(profile_signal_perm(sender, target, MAY_WRITE, sa),
+		      profile_signal_perm(target, sender, MAY_READ, sa));
+}
+
+int aa_may_signal(struct aa_label *sender, struct aa_label *target, int sig)
+{
+	DEFINE_AUDIT_DATA(sa, LSM_AUDIT_DATA_NONE, OP_SIGNAL);
+
+	aad(&sa)->signal = map_signal_num(sig);
+	return xcheck_labels_profiles(sender, target, aa_signal_cross_perm,
+				      &sa);
+}
diff --git a/security/apparmor/label.c b/security/apparmor/label.c
index e052eaba1cf6..ad28e03a6f30 100644
--- a/security/apparmor/label.c
+++ b/security/apparmor/label.c
@@ -49,7 +49,7 @@ static void free_proxy(struct aa_proxy *proxy)
 		/* p->label will not updated any more as p is dead */
 		aa_put_label(rcu_dereference_protected(proxy->label, true));
 		memset(proxy, 0, sizeof(*proxy));
-		proxy->label = (struct aa_label *) PROXY_POISON;
+		RCU_INIT_POINTER(proxy->label, (struct aa_label *)PROXY_POISON);
 		kfree(proxy);
 	}
 }
@@ -80,7 +80,7 @@ void __aa_proxy_redirect(struct aa_label *orig, struct aa_label *new)
 
 	AA_BUG(!orig);
 	AA_BUG(!new);
-	AA_BUG(!write_is_locked(&labels_set(orig)->lock));
+	lockdep_assert_held_exclusive(&labels_set(orig)->lock);
 
 	tmp = rcu_dereference_protected(orig->proxy->label,
 					&labels_ns(orig)->lock);
@@ -571,7 +571,7 @@ static bool __label_remove(struct aa_label *label, struct aa_label *new)
 
 	AA_BUG(!ls);
 	AA_BUG(!label);
-	AA_BUG(!write_is_locked(&ls->lock));
+	lockdep_assert_held_exclusive(&ls->lock);
 
 	if (new)
 		__aa_proxy_redirect(label, new);
@@ -608,7 +608,7 @@ static bool __label_replace(struct aa_label *old, struct aa_label *new)
 	AA_BUG(!ls);
 	AA_BUG(!old);
 	AA_BUG(!new);
-	AA_BUG(!write_is_locked(&ls->lock));
+	lockdep_assert_held_exclusive(&ls->lock);
 	AA_BUG(new->flags & FLAG_IN_TREE);
 
 	if (!label_is_stale(old))
@@ -645,7 +645,7 @@ static struct aa_label *__label_insert(struct aa_labelset *ls,
 	AA_BUG(!ls);
 	AA_BUG(!label);
 	AA_BUG(labels_set(label) != ls);
-	AA_BUG(!write_is_locked(&ls->lock));
+	lockdep_assert_held_exclusive(&ls->lock);
 	AA_BUG(label->flags & FLAG_IN_TREE);
 
 	/* Figure out where to put new node */
@@ -1450,9 +1450,11 @@ bool aa_update_label_name(struct aa_ns *ns, struct aa_label *label, gfp_t gfp)
  * cached label name is present and visible
  * @label->hname only exists if label is namespace hierachical
  */
-static inline bool use_label_hname(struct aa_ns *ns, struct aa_label *label)
+static inline bool use_label_hname(struct aa_ns *ns, struct aa_label *label,
+				   int flags)
 {
-	if (label->hname && labels_ns(label) == ns)
+	if (label->hname && (!ns || labels_ns(label) == ns) &&
+	    !(flags & ~FLAG_SHOW_MODE))
 		return true;
 
 	return false;
@@ -1495,7 +1497,7 @@ static int aa_profile_snxprint(char *str, size_t size, struct aa_ns *view,
 		view = profiles_ns(profile);
 
 	if (view != profile->ns &&
-	    (!prev_ns || (prev_ns && *prev_ns != profile->ns))) {
+	    (!prev_ns || (*prev_ns != profile->ns))) {
 		if (prev_ns)
 			*prev_ns = profile->ns;
 		ns_name = aa_ns_name(view, profile->ns,
@@ -1605,8 +1607,13 @@ int aa_label_snxprint(char *str, size_t size, struct aa_ns *ns,
 	AA_BUG(!str && size != 0);
 	AA_BUG(!label);
 
-	if (!ns)
+	if (flags & FLAG_ABS_ROOT) {
+		ns = root_ns;
+		len = snprintf(str, size, "=");
+		update_for_len(total, len, size, str);
+	} else if (!ns) {
 		ns = labels_ns(label);
+	}
 
 	label_for_each(i, label, profile) {
 		if (aa_ns_visible(ns, profile->ns, flags & FLAG_VIEW_SUBNS)) {
@@ -1710,10 +1717,8 @@ void aa_label_xaudit(struct audit_buffer *ab, struct aa_ns *ns,
 	AA_BUG(!ab);
 	AA_BUG(!label);
 
-	if (!ns)
-		ns = labels_ns(label);
-
-	if (!use_label_hname(ns, label) || display_mode(ns, label, flags)) {
+	if (!use_label_hname(ns, label, flags) ||
+	    display_mode(ns, label, flags)) {
 		len  = aa_label_asxprint(&name, ns, label, flags, gfp);
 		if (len == -1) {
 			AA_DEBUG("label print error");
@@ -1738,10 +1743,7 @@ void aa_label_seq_xprint(struct seq_file *f, struct aa_ns *ns,
 	AA_BUG(!f);
 	AA_BUG(!label);
 
-	if (!ns)
-		ns = labels_ns(label);
-
-	if (!use_label_hname(ns, label)) {
+	if (!use_label_hname(ns, label, flags)) {
 		char *str;
 		int len;
 
@@ -1764,10 +1766,7 @@ void aa_label_xprintk(struct aa_ns *ns, struct aa_label *label, int flags,
 {
 	AA_BUG(!label);
 
-	if (!ns)
-		ns = labels_ns(label);
-
-	if (!use_label_hname(ns, label)) {
+	if (!use_label_hname(ns, label, flags)) {
 		char *str;
 		int len;
 
@@ -1874,6 +1873,9 @@ struct aa_label *aa_label_parse(struct aa_label *base, const char *str,
 		if (*str == '&')
 			str++;
 	}
+	if (*str == '=')
+		base = &root_ns->unconfined->label;
+
 	error = vec_setup(profile, vec, len, gfp);
 	if (error)
 		return ERR_PTR(error);
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 7a82c0f61452..1346ee5be04f 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -38,6 +38,7 @@
 #include "include/policy.h"
 #include "include/policy_ns.h"
 #include "include/procattr.h"
+#include "include/mount.h"
 
 /* Flag indicating whether initialization completed */
 int apparmor_initialized;
@@ -511,6 +512,65 @@ static int apparmor_file_mprotect(struct vm_area_struct *vma,
 			   !(vma->vm_flags & VM_SHARED) ? MAP_PRIVATE : 0);
 }
 
+static int apparmor_sb_mount(const char *dev_name, const struct path *path,
+			     const char *type, unsigned long flags, void *data)
+{
+	struct aa_label *label;
+	int error = 0;
+
+	/* Discard magic */
+	if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
+		flags &= ~MS_MGC_MSK;
+
+	flags &= ~AA_MS_IGNORE_MASK;
+
+	label = __begin_current_label_crit_section();
+	if (!unconfined(label)) {
+		if (flags & MS_REMOUNT)
+			error = aa_remount(label, path, flags, data);
+		else if (flags & MS_BIND)
+			error = aa_bind_mount(label, path, dev_name, flags);
+		else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE |
+				  MS_UNBINDABLE))
+			error = aa_mount_change_type(label, path, flags);
+		else if (flags & MS_MOVE)
+			error = aa_move_mount(label, path, dev_name);
+		else
+			error = aa_new_mount(label, dev_name, path, type,
+					     flags, data);
+	}
+	__end_current_label_crit_section(label);
+
+	return error;
+}
+
+static int apparmor_sb_umount(struct vfsmount *mnt, int flags)
+{
+	struct aa_label *label;
+	int error = 0;
+
+	label = __begin_current_label_crit_section();
+	if (!unconfined(label))
+		error = aa_umount(label, mnt, flags);
+	__end_current_label_crit_section(label);
+
+	return error;
+}
+
+static int apparmor_sb_pivotroot(const struct path *old_path,
+				 const struct path *new_path)
+{
+	struct aa_label *label;
+	int error = 0;
+
+	label = aa_get_current_label();
+	if (!unconfined(label))
+		error = aa_pivotroot(label, old_path, new_path);
+	aa_put_label(label);
+
+	return error;
+}
+
 static int apparmor_getprocattr(struct task_struct *task, char *name,
 				char **value)
 {
@@ -656,12 +716,36 @@ static int apparmor_task_setrlimit(struct task_struct *task,
 	return error;
 }
 
+static int apparmor_task_kill(struct task_struct *target, struct siginfo *info,
+			      int sig, u32 secid)
+{
+	struct aa_label *cl, *tl;
+	int error;
+
+	if (secid)
+		/* TODO: after secid to label mapping is done.
+		 *  Dealing with USB IO specific behavior
+		 */
+		return 0;
+	cl = __begin_current_label_crit_section();
+	tl = aa_get_task_label(target);
+	error = aa_may_signal(cl, tl, sig);
+	aa_put_label(tl);
+	__end_current_label_crit_section(cl);
+
+	return error;
+}
+
 static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = {
 	LSM_HOOK_INIT(ptrace_access_check, apparmor_ptrace_access_check),
 	LSM_HOOK_INIT(ptrace_traceme, apparmor_ptrace_traceme),
 	LSM_HOOK_INIT(capget, apparmor_capget),
 	LSM_HOOK_INIT(capable, apparmor_capable),
 
+	LSM_HOOK_INIT(sb_mount, apparmor_sb_mount),
+	LSM_HOOK_INIT(sb_umount, apparmor_sb_umount),
+	LSM_HOOK_INIT(sb_pivotroot, apparmor_sb_pivotroot),
+
 	LSM_HOOK_INIT(path_link, apparmor_path_link),
 	LSM_HOOK_INIT(path_unlink, apparmor_path_unlink),
 	LSM_HOOK_INIT(path_symlink, apparmor_path_symlink),
@@ -696,6 +780,7 @@ static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = {
 	LSM_HOOK_INIT(bprm_committed_creds, apparmor_bprm_committed_creds),
 
 	LSM_HOOK_INIT(task_setrlimit, apparmor_task_setrlimit),
+	LSM_HOOK_INIT(task_kill, apparmor_task_kill),
 };
 
 /*
diff --git a/security/apparmor/mount.c b/security/apparmor/mount.c
new file mode 100644
index 000000000000..82a64b58041d
--- /dev/null
+++ b/security/apparmor/mount.c
@@ -0,0 +1,696 @@
+/*
+ * AppArmor security module
+ *
+ * This file contains AppArmor mediation of files
+ *
+ * Copyright (C) 1998-2008 Novell/SUSE
+ * Copyright 2009-2017 Canonical Ltd.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ */
+
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/namei.h>
+
+#include "include/apparmor.h"
+#include "include/audit.h"
+#include "include/context.h"
+#include "include/domain.h"
+#include "include/file.h"
+#include "include/match.h"
+#include "include/mount.h"
+#include "include/path.h"
+#include "include/policy.h"
+
+
+static void audit_mnt_flags(struct audit_buffer *ab, unsigned long flags)
+{
+	if (flags & MS_RDONLY)
+		audit_log_format(ab, "ro");
+	else
+		audit_log_format(ab, "rw");
+	if (flags & MS_NOSUID)
+		audit_log_format(ab, ", nosuid");
+	if (flags & MS_NODEV)
+		audit_log_format(ab, ", nodev");
+	if (flags & MS_NOEXEC)
+		audit_log_format(ab, ", noexec");
+	if (flags & MS_SYNCHRONOUS)
+		audit_log_format(ab, ", sync");
+	if (flags & MS_REMOUNT)
+		audit_log_format(ab, ", remount");
+	if (flags & MS_MANDLOCK)
+		audit_log_format(ab, ", mand");
+	if (flags & MS_DIRSYNC)
+		audit_log_format(ab, ", dirsync");
+	if (flags & MS_NOATIME)
+		audit_log_format(ab, ", noatime");
+	if (flags & MS_NODIRATIME)
+		audit_log_format(ab, ", nodiratime");
+	if (flags & MS_BIND)
+		audit_log_format(ab, flags & MS_REC ? ", rbind" : ", bind");
+	if (flags & MS_MOVE)
+		audit_log_format(ab, ", move");
+	if (flags & MS_SILENT)
+		audit_log_format(ab, ", silent");
+	if (flags & MS_POSIXACL)
+		audit_log_format(ab, ", acl");
+	if (flags & MS_UNBINDABLE)
+		audit_log_format(ab, flags & MS_REC ? ", runbindable" :
+				 ", unbindable");
+	if (flags & MS_PRIVATE)
+		audit_log_format(ab, flags & MS_REC ? ", rprivate" :
+				 ", private");
+	if (flags & MS_SLAVE)
+		audit_log_format(ab, flags & MS_REC ? ", rslave" :
+				 ", slave");
+	if (flags & MS_SHARED)
+		audit_log_format(ab, flags & MS_REC ? ", rshared" :
+				 ", shared");
+	if (flags & MS_RELATIME)
+		audit_log_format(ab, ", relatime");
+	if (flags & MS_I_VERSION)
+		audit_log_format(ab, ", iversion");
+	if (flags & MS_STRICTATIME)
+		audit_log_format(ab, ", strictatime");
+	if (flags & MS_NOUSER)
+		audit_log_format(ab, ", nouser");
+}
+
+/**
+ * audit_cb - call back for mount specific audit fields
+ * @ab: audit_buffer  (NOT NULL)
+ * @va: audit struct to audit values of  (NOT NULL)
+ */
+static void audit_cb(struct audit_buffer *ab, void *va)
+{
+	struct common_audit_data *sa = va;
+
+	if (aad(sa)->mnt.type) {
+		audit_log_format(ab, " fstype=");
+		audit_log_untrustedstring(ab, aad(sa)->mnt.type);
+	}
+	if (aad(sa)->mnt.src_name) {
+		audit_log_format(ab, " srcname=");
+		audit_log_untrustedstring(ab, aad(sa)->mnt.src_name);
+	}
+	if (aad(sa)->mnt.trans) {
+		audit_log_format(ab, " trans=");
+		audit_log_untrustedstring(ab, aad(sa)->mnt.trans);
+	}
+	if (aad(sa)->mnt.flags) {
+		audit_log_format(ab, " flags=\"");
+		audit_mnt_flags(ab, aad(sa)->mnt.flags);
+		audit_log_format(ab, "\"");
+	}
+	if (aad(sa)->mnt.data) {
+		audit_log_format(ab, " options=");
+		audit_log_untrustedstring(ab, aad(sa)->mnt.data);
+	}
+}
+
+/**
+ * audit_mount - handle the auditing of mount operations
+ * @profile: the profile being enforced  (NOT NULL)
+ * @op: operation being mediated (NOT NULL)
+ * @name: name of object being mediated (MAYBE NULL)
+ * @src_name: src_name of object being mediated (MAYBE_NULL)
+ * @type: type of filesystem (MAYBE_NULL)
+ * @trans: name of trans (MAYBE NULL)
+ * @flags: filesystem idependent mount flags
+ * @data: filesystem mount flags
+ * @request: permissions requested
+ * @perms: the permissions computed for the request (NOT NULL)
+ * @info: extra information message (MAYBE NULL)
+ * @error: 0 if operation allowed else failure error code
+ *
+ * Returns: %0 or error on failure
+ */
+static int audit_mount(struct aa_profile *profile, const char *op,
+		       const char *name, const char *src_name,
+		       const char *type, const char *trans,
+		       unsigned long flags, const void *data, u32 request,
+		       struct aa_perms *perms, const char *info, int error)
+{
+	int audit_type = AUDIT_APPARMOR_AUTO;
+	DEFINE_AUDIT_DATA(sa, LSM_AUDIT_DATA_NONE, op);
+
+	if (likely(!error)) {
+		u32 mask = perms->audit;
+
+		if (unlikely(AUDIT_MODE(profile) == AUDIT_ALL))
+			mask = 0xffff;
+
+		/* mask off perms that are not being force audited */
+		request &= mask;
+
+		if (likely(!request))
+			return 0;
+		audit_type = AUDIT_APPARMOR_AUDIT;
+	} else {
+		/* only report permissions that were denied */
+		request = request & ~perms->allow;
+
+		if (request & perms->kill)
+			audit_type = AUDIT_APPARMOR_KILL;
+
+		/* quiet known rejects, assumes quiet and kill do not overlap */
+		if ((request & perms->quiet) &&
+		    AUDIT_MODE(profile) != AUDIT_NOQUIET &&
+		    AUDIT_MODE(profile) != AUDIT_ALL)
+			request &= ~perms->quiet;
+
+		if (!request)
+			return error;
+	}
+
+	aad(&sa)->name = name;
+	aad(&sa)->mnt.src_name = src_name;
+	aad(&sa)->mnt.type = type;
+	aad(&sa)->mnt.trans = trans;
+	aad(&sa)->mnt.flags = flags;
+	if (data && (perms->audit & AA_AUDIT_DATA))
+		aad(&sa)->mnt.data = data;
+	aad(&sa)->info = info;
+	aad(&sa)->error = error;
+
+	return aa_audit(audit_type, profile, &sa, audit_cb);
+}
+
+/**
+ * match_mnt_flags - Do an ordered match on mount flags
+ * @dfa: dfa to match against
+ * @state: state to start in
+ * @flags: mount flags to match against
+ *
+ * Mount flags are encoded as an ordered match. This is done instead of
+ * checking against a simple bitmask, to allow for logical operations
+ * on the flags.
+ *
+ * Returns: next state after flags match
+ */
+static unsigned int match_mnt_flags(struct aa_dfa *dfa, unsigned int state,
+				    unsigned long flags)
+{
+	unsigned int i;
+
+	for (i = 0; i <= 31 ; ++i) {
+		if ((1 << i) & flags)
+			state = aa_dfa_next(dfa, state, i + 1);
+	}
+
+	return state;
+}
+
+/**
+ * compute_mnt_perms - compute mount permission associated with @state
+ * @dfa: dfa to match against (NOT NULL)
+ * @state: state match finished in
+ *
+ * Returns: mount permissions
+ */
+static struct aa_perms compute_mnt_perms(struct aa_dfa *dfa,
+					   unsigned int state)
+{
+	struct aa_perms perms;
+
+	perms.kill = 0;
+	perms.allow = dfa_user_allow(dfa, state);
+	perms.audit = dfa_user_audit(dfa, state);
+	perms.quiet = dfa_user_quiet(dfa, state);
+	perms.xindex = dfa_user_xindex(dfa, state);
+
+	return perms;
+}
+
+static const char * const mnt_info_table[] = {
+	"match succeeded",
+	"failed mntpnt match",
+	"failed srcname match",
+	"failed type match",
+	"failed flags match",
+	"failed data match"
+};
+
+/*
+ * Returns 0 on success else element that match failed in, this is the
+ * index into the mnt_info_table above
+ */
+static int do_match_mnt(struct aa_dfa *dfa, unsigned int start,
+			const char *mntpnt, const char *devname,
+			const char *type, unsigned long flags,
+			void *data, bool binary, struct aa_perms *perms)
+{
+	unsigned int state;
+
+	AA_BUG(!dfa);
+	AA_BUG(!perms);
+
+	state = aa_dfa_match(dfa, start, mntpnt);
+	state = aa_dfa_null_transition(dfa, state);
+	if (!state)
+		return 1;
+
+	if (devname)
+		state = aa_dfa_match(dfa, state, devname);
+	state = aa_dfa_null_transition(dfa, state);
+	if (!state)
+		return 2;
+
+	if (type)
+		state = aa_dfa_match(dfa, state, type);
+	state = aa_dfa_null_transition(dfa, state);
+	if (!state)
+		return 3;
+
+	state = match_mnt_flags(dfa, state, flags);
+	if (!state)
+		return 4;
+	*perms = compute_mnt_perms(dfa, state);
+	if (perms->allow & AA_MAY_MOUNT)
+		return 0;
+
+	/* only match data if not binary and the DFA flags data is expected */
+	if (data && !binary && (perms->allow & AA_MNT_CONT_MATCH)) {
+		state = aa_dfa_null_transition(dfa, state);
+		if (!state)
+			return 4;
+
+		state = aa_dfa_match(dfa, state, data);
+		if (!state)
+			return 5;
+		*perms = compute_mnt_perms(dfa, state);
+		if (perms->allow & AA_MAY_MOUNT)
+			return 0;
+	}
+
+	/* failed at end of flags match */
+	return 4;
+}
+
+
+static int path_flags(struct aa_profile *profile, const struct path *path)
+{
+	AA_BUG(!profile);
+	AA_BUG(!path);
+
+	return profile->path_flags |
+		(S_ISDIR(path->dentry->d_inode->i_mode) ? PATH_IS_DIR : 0);
+}
+
+/**
+ * match_mnt_path_str - handle path matching for mount
+ * @profile: the confining profile
+ * @mntpath: for the mntpnt (NOT NULL)
+ * @buffer: buffer to be used to lookup mntpath
+ * @devnme: string for the devname/src_name (MAY BE NULL OR ERRPTR)
+ * @type: string for the dev type (MAYBE NULL)
+ * @flags: mount flags to match
+ * @data: fs mount data (MAYBE NULL)
+ * @binary: whether @data is binary
+ * @devinfo: error str if (IS_ERR(@devname))
+ *
+ * Returns: 0 on success else error
+ */
+static int match_mnt_path_str(struct aa_profile *profile,
+			      const struct path *mntpath, char *buffer,
+			      const char *devname, const char *type,
+			      unsigned long flags, void *data, bool binary,
+			      const char *devinfo)
+{
+	struct aa_perms perms = { };
+	const char *mntpnt = NULL, *info = NULL;
+	int pos, error;
+
+	AA_BUG(!profile);
+	AA_BUG(!mntpath);
+	AA_BUG(!buffer);
+
+	error = aa_path_name(mntpath, path_flags(profile, mntpath), buffer,
+			     &mntpnt, &info, profile->disconnected);
+	if (error)
+		goto audit;
+	if (IS_ERR(devname)) {
+		error = PTR_ERR(devname);
+		devname = NULL;
+		info = devinfo;
+		goto audit;
+	}
+
+	error = -EACCES;
+	pos = do_match_mnt(profile->policy.dfa,
+			   profile->policy.start[AA_CLASS_MOUNT],
+			   mntpnt, devname, type, flags, data, binary, &perms);
+	if (pos) {
+		info = mnt_info_table[pos];
+		goto audit;
+	}
+	error = 0;
+
+audit:
+	return audit_mount(profile, OP_MOUNT, mntpnt, devname, type, NULL,
+			   flags, data, AA_MAY_MOUNT, &perms, info, error);
+}
+
+/**
+ * match_mnt - handle path matching for mount
+ * @profile: the confining profile
+ * @mntpath: for the mntpnt (NOT NULL)
+ * @buffer: buffer to be used to lookup mntpath
+ * @devpath: path devname/src_name (MAYBE NULL)
+ * @devbuffer: buffer to be used to lookup devname/src_name
+ * @type: string for the dev type (MAYBE NULL)
+ * @flags: mount flags to match
+ * @data: fs mount data (MAYBE NULL)
+ * @binary: whether @data is binary
+ *
+ * Returns: 0 on success else error
+ */
+static int match_mnt(struct aa_profile *profile, const struct path *path,
+		     char *buffer, struct path *devpath, char *devbuffer,
+		     const char *type, unsigned long flags, void *data,
+		     bool binary)
+{
+	const char *devname = NULL, *info = NULL;
+	int error = -EACCES;
+
+	AA_BUG(!profile);
+	AA_BUG(devpath && !devbuffer);
+
+	if (devpath) {
+		error = aa_path_name(devpath, path_flags(profile, devpath),
+				     devbuffer, &devname, &info,
+				     profile->disconnected);
+		if (error)
+			devname = ERR_PTR(error);
+	}
+
+	return match_mnt_path_str(profile, path, buffer, devname, type, flags,
+				  data, binary, info);
+}
+
+int aa_remount(struct aa_label *label, const struct path *path,
+	       unsigned long flags, void *data)
+{
+	struct aa_profile *profile;
+	char *buffer = NULL;
+	bool binary;
+	int error;
+
+	AA_BUG(!label);
+	AA_BUG(!path);
+
+	binary = path->dentry->d_sb->s_type->fs_flags & FS_BINARY_MOUNTDATA;
+
+	get_buffers(buffer);
+	error = fn_for_each_confined(label, profile,
+			match_mnt(profile, path, buffer, NULL, NULL, NULL,
+				  flags, data, binary));
+	put_buffers(buffer);
+
+	return error;
+}
+
+int aa_bind_mount(struct aa_label *label, const struct path *path,
+		  const char *dev_name, unsigned long flags)
+{
+	struct aa_profile *profile;
+	char *buffer = NULL, *old_buffer = NULL;
+	struct path old_path;
+	int error;
+
+	AA_BUG(!label);
+	AA_BUG(!path);
+
+	if (!dev_name || !*dev_name)
+		return -EINVAL;
+
+	flags &= MS_REC | MS_BIND;
+
+	error = kern_path(dev_name, LOOKUP_FOLLOW|LOOKUP_AUTOMOUNT, &old_path);
+	if (error)
+		return error;
+
+	get_buffers(buffer, old_buffer);
+	error = fn_for_each_confined(label, profile,
+			match_mnt(profile, path, buffer, &old_path, old_buffer,
+				  NULL, flags, NULL, false));
+	put_buffers(buffer, old_buffer);
+	path_put(&old_path);
+
+	return error;
+}
+
+int aa_mount_change_type(struct aa_label *label, const struct path *path,
+			 unsigned long flags)
+{
+	struct aa_profile *profile;
+	char *buffer = NULL;
+	int error;
+
+	AA_BUG(!label);
+	AA_BUG(!path);
+
+	/* These are the flags allowed by do_change_type() */
+	flags &= (MS_REC | MS_SILENT | MS_SHARED | MS_PRIVATE | MS_SLAVE |
+		  MS_UNBINDABLE);
+
+	get_buffers(buffer);
+	error = fn_for_each_confined(label, profile,
+			match_mnt(profile, path, buffer, NULL, NULL, NULL,
+				  flags, NULL, false));
+	put_buffers(buffer);
+
+	return error;
+}
+
+int aa_move_mount(struct aa_label *label, const struct path *path,
+		  const char *orig_name)
+{
+	struct aa_profile *profile;
+	char *buffer = NULL, *old_buffer = NULL;
+	struct path old_path;
+	int error;
+
+	AA_BUG(!label);
+	AA_BUG(!path);
+
+	if (!orig_name || !*orig_name)
+		return -EINVAL;
+
+	error = kern_path(orig_name, LOOKUP_FOLLOW, &old_path);
+	if (error)
+		return error;
+
+	get_buffers(buffer, old_buffer);
+	error = fn_for_each_confined(label, profile,
+			match_mnt(profile, path, buffer, &old_path, old_buffer,
+				  NULL, MS_MOVE, NULL, false));
+	put_buffers(buffer, old_buffer);
+	path_put(&old_path);
+
+	return error;
+}
+
+int aa_new_mount(struct aa_label *label, const char *dev_name,
+		 const struct path *path, const char *type, unsigned long flags,
+		 void *data)
+{
+	struct aa_profile *profile;
+	char *buffer = NULL, *dev_buffer = NULL;
+	bool binary = true;
+	int error;
+	int requires_dev = 0;
+	struct path tmp_path, *dev_path = NULL;
+
+	AA_BUG(!label);
+	AA_BUG(!path);
+
+	if (type) {
+		struct file_system_type *fstype;
+
+		fstype = get_fs_type(type);
+		if (!fstype)
+			return -ENODEV;
+		binary = fstype->fs_flags & FS_BINARY_MOUNTDATA;
+		requires_dev = fstype->fs_flags & FS_REQUIRES_DEV;
+		put_filesystem(fstype);
+
+		if (requires_dev) {
+			if (!dev_name || !*dev_name)
+				return -ENOENT;
+
+			error = kern_path(dev_name, LOOKUP_FOLLOW, &tmp_path);
+			if (error)
+				return error;
+			dev_path = &tmp_path;
+		}
+	}
+
+	get_buffers(buffer, dev_buffer);
+	if (dev_path) {
+		error = fn_for_each_confined(label, profile,
+			match_mnt(profile, path, buffer, dev_path, dev_buffer,
+				  type, flags, data, binary));
+	} else {
+		error = fn_for_each_confined(label, profile,
+			match_mnt_path_str(profile, path, buffer, dev_name,
+					   type, flags, data, binary, NULL));
+	}
+	put_buffers(buffer, dev_buffer);
+	if (dev_path)
+		path_put(dev_path);
+
+	return error;
+}
+
+static int profile_umount(struct aa_profile *profile, struct path *path,
+			  char *buffer)
+{
+	struct aa_perms perms = { };
+	const char *name = NULL, *info = NULL;
+	unsigned int state;
+	int error;
+
+	AA_BUG(!profile);
+	AA_BUG(!path);
+
+	error = aa_path_name(path, path_flags(profile, path), buffer, &name,
+			     &info, profile->disconnected);
+	if (error)
+		goto audit;
+
+	state = aa_dfa_match(profile->policy.dfa,
+			     profile->policy.start[AA_CLASS_MOUNT],
+			     name);
+	perms = compute_mnt_perms(profile->policy.dfa, state);
+	if (AA_MAY_UMOUNT & ~perms.allow)
+		error = -EACCES;
+
+audit:
+	return audit_mount(profile, OP_UMOUNT, name, NULL, NULL, NULL, 0, NULL,
+			   AA_MAY_UMOUNT, &perms, info, error);
+}
+
+int aa_umount(struct aa_label *label, struct vfsmount *mnt, int flags)
+{
+	struct aa_profile *profile;
+	char *buffer = NULL;
+	int error;
+	struct path path = { .mnt = mnt, .dentry = mnt->mnt_root };
+
+	AA_BUG(!label);
+	AA_BUG(!mnt);
+
+	get_buffers(buffer);
+	error = fn_for_each_confined(label, profile,
+			profile_umount(profile, &path, buffer));
+	put_buffers(buffer);
+
+	return error;
+}
+
+/* helper fn for transition on pivotroot
+ *
+ * Returns: label for transition or ERR_PTR. Does not return NULL
+ */
+static struct aa_label *build_pivotroot(struct aa_profile *profile,
+					const struct path *new_path,
+					char *new_buffer,
+					const struct path *old_path,
+					char *old_buffer)
+{
+	const char *old_name, *new_name = NULL, *info = NULL;
+	const char *trans_name = NULL;
+	struct aa_perms perms = { };
+	unsigned int state;
+	int error;
+
+	AA_BUG(!profile);
+	AA_BUG(!new_path);
+	AA_BUG(!old_path);
+
+	if (profile_unconfined(profile))
+		return aa_get_newest_label(&profile->label);
+
+	error = aa_path_name(old_path, path_flags(profile, old_path),
+			     old_buffer, &old_name, &info,
+			     profile->disconnected);
+	if (error)
+		goto audit;
+	error = aa_path_name(new_path, path_flags(profile, new_path),
+			     new_buffer, &new_name, &info,
+			     profile->disconnected);
+	if (error)
+		goto audit;
+
+	error = -EACCES;
+	state = aa_dfa_match(profile->policy.dfa,
+			     profile->policy.start[AA_CLASS_MOUNT],
+			     new_name);
+	state = aa_dfa_null_transition(profile->policy.dfa, state);
+	state = aa_dfa_match(profile->policy.dfa, state, old_name);
+	perms = compute_mnt_perms(profile->policy.dfa, state);
+
+	if (AA_MAY_PIVOTROOT & perms.allow)
+		error = 0;
+
+audit:
+	error = audit_mount(profile, OP_PIVOTROOT, new_name, old_name,
+			    NULL, trans_name, 0, NULL, AA_MAY_PIVOTROOT,
+			    &perms, info, error);
+	if (error)
+		return ERR_PTR(error);
+
+	return aa_get_newest_label(&profile->label);
+}
+
+int aa_pivotroot(struct aa_label *label, const struct path *old_path,
+		 const struct path *new_path)
+{
+	struct aa_profile *profile;
+	struct aa_label *target = NULL;
+	char *old_buffer = NULL, *new_buffer = NULL, *info = NULL;
+	int error;
+
+	AA_BUG(!label);
+	AA_BUG(!old_path);
+	AA_BUG(!new_path);
+
+	get_buffers(old_buffer, new_buffer);
+	target = fn_label_build(label, profile, GFP_ATOMIC,
+			build_pivotroot(profile, new_path, new_buffer,
+					old_path, old_buffer));
+	if (!target) {
+		info = "label build failed";
+		error = -ENOMEM;
+		goto fail;
+	} else if (!IS_ERR(target)) {
+		error = aa_replace_current_label(target);
+		if (error) {
+			/* TODO: audit target */
+			aa_put_label(target);
+			goto out;
+		}
+	} else
+		/* already audited error */
+		error = PTR_ERR(target);
+out:
+	put_buffers(old_buffer, new_buffer);
+
+	return error;
+
+fail:
+	/* TODO: add back in auditing of new_name and old_name */
+	error = fn_for_each(label, profile,
+			audit_mount(profile, OP_PIVOTROOT, NULL /*new_name */,
+				    NULL /* old_name */,
+				    NULL, NULL,
+				    0, NULL, AA_MAY_PIVOTROOT, &nullperms, info,
+				    error));
+	goto out;
+}
diff --git a/security/apparmor/policy.c b/security/apparmor/policy.c
index 244ea4a4a8f0..4243b0c3f0e4 100644
--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -289,85 +289,6 @@ fail:
 	return NULL;
 }
 
-/**
- * aa_new_null_profile - create or find a null-X learning profile
- * @parent: profile that caused this profile to be created (NOT NULL)
- * @hat: true if the null- learning profile is a hat
- * @base: name to base the null profile off of
- * @gfp: type of allocation
- *
- * Find/Create a null- complain mode profile used in learning mode.  The
- * name of the profile is unique and follows the format of parent//null-XXX.
- * where XXX is based on the @name or if that fails or is not supplied
- * a unique number
- *
- * null profiles are added to the profile list but the list does not
- * hold a count on them so that they are automatically released when
- * not in use.
- *
- * Returns: new refcounted profile else NULL on failure
- */
-struct aa_profile *aa_new_null_profile(struct aa_profile *parent, bool hat,
-				       const char *base, gfp_t gfp)
-{
-	struct aa_profile *profile;
-	char *name;
-
-	AA_BUG(!parent);
-
-	if (base) {
-		name = kmalloc(strlen(parent->base.hname) + 8 + strlen(base),
-			       gfp);
-		if (name) {
-			sprintf(name, "%s//null-%s", parent->base.hname, base);
-			goto name;
-		}
-		/* fall through to try shorter uniq */
-	}
-
-	name = kmalloc(strlen(parent->base.hname) + 2 + 7 + 8, gfp);
-	if (!name)
-		return NULL;
-	sprintf(name, "%s//null-%x", parent->base.hname,
-		atomic_inc_return(&parent->ns->uniq_null));
-
-name:
-	/* lookup to see if this is a dup creation */
-	profile = aa_find_child(parent, basename(name));
-	if (profile)
-		goto out;
-
-	profile = aa_alloc_profile(name, NULL, gfp);
-	if (!profile)
-		goto fail;
-
-	profile->mode = APPARMOR_COMPLAIN;
-	profile->label.flags |= FLAG_NULL;
-	if (hat)
-		profile->label.flags |= FLAG_HAT;
-	profile->path_flags = parent->path_flags;
-
-	/* released on free_profile */
-	rcu_assign_pointer(profile->parent, aa_get_profile(parent));
-	profile->ns = aa_get_ns(parent->ns);
-	profile->file.dfa = aa_get_dfa(nulldfa);
-	profile->policy.dfa = aa_get_dfa(nulldfa);
-
-	mutex_lock(&profile->ns->lock);
-	__add_profile(&parent->base.profiles, profile);
-	mutex_unlock(&profile->ns->lock);
-
-	/* refcount released by caller */
-out:
-	kfree(name);
-
-	return profile;
-
-fail:
-	aa_free_profile(profile);
-	return NULL;
-}
-
 /* TODO: profile accounting - setup in remove */
 
 /**
@@ -559,6 +480,93 @@ struct aa_profile *aa_fqlookupn_profile(struct aa_label *base,
 }
 
 /**
+ * aa_new_null_profile - create or find a null-X learning profile
+ * @parent: profile that caused this profile to be created (NOT NULL)
+ * @hat: true if the null- learning profile is a hat
+ * @base: name to base the null profile off of
+ * @gfp: type of allocation
+ *
+ * Find/Create a null- complain mode profile used in learning mode.  The
+ * name of the profile is unique and follows the format of parent//null-XXX.
+ * where XXX is based on the @name or if that fails or is not supplied
+ * a unique number
+ *
+ * null profiles are added to the profile list but the list does not
+ * hold a count on them so that they are automatically released when
+ * not in use.
+ *
+ * Returns: new refcounted profile else NULL on failure
+ */
+struct aa_profile *aa_new_null_profile(struct aa_profile *parent, bool hat,
+				       const char *base, gfp_t gfp)
+{
+	struct aa_profile *p, *profile;
+	const char *bname;
+	char *name;
+
+	AA_BUG(!parent);
+
+	if (base) {
+		name = kmalloc(strlen(parent->base.hname) + 8 + strlen(base),
+			       gfp);
+		if (name) {
+			sprintf(name, "%s//null-%s", parent->base.hname, base);
+			goto name;
+		}
+		/* fall through to try shorter uniq */
+	}
+
+	name = kmalloc(strlen(parent->base.hname) + 2 + 7 + 8, gfp);
+	if (!name)
+		return NULL;
+	sprintf(name, "%s//null-%x", parent->base.hname,
+		atomic_inc_return(&parent->ns->uniq_null));
+
+name:
+	/* lookup to see if this is a dup creation */
+	bname = basename(name);
+	profile = aa_find_child(parent, bname);
+	if (profile)
+		goto out;
+
+	profile = aa_alloc_profile(name, NULL, gfp);
+	if (!profile)
+		goto fail;
+
+	profile->mode = APPARMOR_COMPLAIN;
+	profile->label.flags |= FLAG_NULL;
+	if (hat)
+		profile->label.flags |= FLAG_HAT;
+	profile->path_flags = parent->path_flags;
+
+	/* released on free_profile */
+	rcu_assign_pointer(profile->parent, aa_get_profile(parent));
+	profile->ns = aa_get_ns(parent->ns);
+	profile->file.dfa = aa_get_dfa(nulldfa);
+	profile->policy.dfa = aa_get_dfa(nulldfa);
+
+	mutex_lock(&profile->ns->lock);
+	p = __find_child(&parent->base.profiles, bname);
+	if (p) {
+		aa_free_profile(profile);
+		profile = aa_get_profile(p);
+	} else {
+		__add_profile(&parent->base.profiles, profile);
+	}
+	mutex_unlock(&profile->ns->lock);
+
+	/* refcount released by caller */
+out:
+	kfree(name);
+
+	return profile;
+
+fail:
+	aa_free_profile(profile);
+	return NULL;
+}
+
+/**
  * replacement_allowed - test to see if replacement is allowed
  * @profile: profile to test if it can be replaced  (MAYBE NULL)
  * @noreplace: true if replacement shouldn't be allowed but addition is okay
diff --git a/security/apparmor/policy_ns.c b/security/apparmor/policy_ns.c
index 351d3bab3a3d..62a3589c62ab 100644
--- a/security/apparmor/policy_ns.c
+++ b/security/apparmor/policy_ns.c
@@ -112,6 +112,8 @@ static struct aa_ns *alloc_ns(const char *prefix, const char *name)
 	ns->unconfined->label.flags |= FLAG_IX_ON_NAME_ERROR |
 		FLAG_IMMUTIBLE | FLAG_NS_COUNT | FLAG_UNCONFINED;
 	ns->unconfined->mode = APPARMOR_UNCONFINED;
+	ns->unconfined->file.dfa = aa_get_dfa(nulldfa);
+	ns->unconfined->policy.dfa = aa_get_dfa(nulldfa);
 
 	/* ns and ns->unconfined share ns->unconfined refcount */
 	ns->unconfined->ns = ns;
diff --git a/security/apparmor/policy_unpack.c b/security/apparmor/policy_unpack.c
index c600f4dd1783..4ede87c30f8b 100644
--- a/security/apparmor/policy_unpack.c
+++ b/security/apparmor/policy_unpack.c
@@ -85,9 +85,9 @@ static void audit_cb(struct audit_buffer *ab, void *va)
 		audit_log_format(ab, " ns=");
 		audit_log_untrustedstring(ab, aad(sa)->iface.ns);
 	}
-	if (aad(sa)->iface.name) {
+	if (aad(sa)->name) {
 		audit_log_format(ab, " name=");
-		audit_log_untrustedstring(ab, aad(sa)->iface.name);
+		audit_log_untrustedstring(ab, aad(sa)->name);
 	}
 	if (aad(sa)->iface.pos)
 		audit_log_format(ab, " offset=%ld", aad(sa)->iface.pos);
@@ -114,9 +114,9 @@ static int audit_iface(struct aa_profile *new, const char *ns_name,
 		aad(&sa)->iface.pos = e->pos - e->start;
 	aad(&sa)->iface.ns = ns_name;
 	if (new)
-		aad(&sa)->iface.name = new->base.hname;
+		aad(&sa)->name = new->base.hname;
 	else
-		aad(&sa)->iface.name = name;
+		aad(&sa)->name = name;
 	aad(&sa)->info = info;
 	aad(&sa)->error = error;
 
@@ -448,7 +448,7 @@ fail:
  */
 static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
 {
-	void *pos = e->pos;
+	void *saved_pos = e->pos;
 
 	/* exec table is optional */
 	if (unpack_nameX(e, AA_STRUCT, "xtable")) {
@@ -511,7 +511,7 @@ static bool unpack_trans_table(struct aa_ext *e, struct aa_profile *profile)
 
 fail:
 	aa_free_domain_entries(&profile->file.trans);
-	e->pos = pos;
+	e->pos = saved_pos;
 	return 0;
 }
 
@@ -583,6 +583,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 {
 	struct aa_profile *profile = NULL;
 	const char *tmpname, *tmpns = NULL, *name = NULL;
+	const char *info = "failed to unpack profile";
 	size_t ns_len;
 	struct rhashtable_params params = { 0 };
 	char *key = NULL;
@@ -604,8 +605,10 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	tmpname = aa_splitn_fqname(name, strlen(name), &tmpns, &ns_len);
 	if (tmpns) {
 		*ns_name = kstrndup(tmpns, ns_len, GFP_KERNEL);
-		if (!*ns_name)
+		if (!*ns_name) {
+			info = "out of memory";
 			goto fail;
+		}
 		name = tmpname;
 	}
 
@@ -624,12 +627,15 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	if (IS_ERR(profile->xmatch)) {
 		error = PTR_ERR(profile->xmatch);
 		profile->xmatch = NULL;
+		info = "bad xmatch";
 		goto fail;
 	}
 	/* xmatch_len is not optional if xmatch is set */
 	if (profile->xmatch) {
-		if (!unpack_u32(e, &tmp, NULL))
+		if (!unpack_u32(e, &tmp, NULL)) {
+			info = "missing xmatch len";
 			goto fail;
+		}
 		profile->xmatch_len = tmp;
 	}
 
@@ -637,8 +643,11 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	(void) unpack_str(e, &profile->disconnected, "disconnected");
 
 	/* per profile debug flags (complain, audit) */
-	if (!unpack_nameX(e, AA_STRUCT, "flags"))
+	if (!unpack_nameX(e, AA_STRUCT, "flags")) {
+		info = "profile missing flags";
 		goto fail;
+	}
+	info = "failed to unpack profile flags";
 	if (!unpack_u32(e, &tmp, NULL))
 		goto fail;
 	if (tmp & PACKED_FLAG_HAT)
@@ -667,6 +676,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 		/* set a default value if path_flags field is not present */
 		profile->path_flags = PATH_MEDIATE_DELETED;
 
+	info = "failed to unpack profile capabilities";
 	if (!unpack_u32(e, &(profile->caps.allow.cap[0]), NULL))
 		goto fail;
 	if (!unpack_u32(e, &(profile->caps.audit.cap[0]), NULL))
@@ -676,6 +686,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	if (!unpack_u32(e, &tmpcap.cap[0], NULL))
 		goto fail;
 
+	info = "failed to unpack upper profile capabilities";
 	if (unpack_nameX(e, AA_STRUCT, "caps64")) {
 		/* optional upper half of 64 bit caps */
 		if (!unpack_u32(e, &(profile->caps.allow.cap[1]), NULL))
@@ -690,6 +701,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 			goto fail;
 	}
 
+	info = "failed to unpack extended profile capabilities";
 	if (unpack_nameX(e, AA_STRUCT, "capsx")) {
 		/* optional extended caps mediation mask */
 		if (!unpack_u32(e, &(profile->caps.extended.cap[0]), NULL))
@@ -700,11 +712,14 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 			goto fail;
 	}
 
-	if (!unpack_rlimits(e, profile))
+	if (!unpack_rlimits(e, profile)) {
+		info = "failed to unpack profile rlimits";
 		goto fail;
+	}
 
 	if (unpack_nameX(e, AA_STRUCT, "policydb")) {
 		/* generic policy dfa - optional and may be NULL */
+		info = "failed to unpack policydb";
 		profile->policy.dfa = unpack_dfa(e);
 		if (IS_ERR(profile->policy.dfa)) {
 			error = PTR_ERR(profile->policy.dfa);
@@ -734,6 +749,7 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	if (IS_ERR(profile->file.dfa)) {
 		error = PTR_ERR(profile->file.dfa);
 		profile->file.dfa = NULL;
+		info = "failed to unpack profile file rules";
 		goto fail;
 	} else if (profile->file.dfa) {
 		if (!unpack_u32(e, &profile->file.start, "dfa_start"))
@@ -746,10 +762,13 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 	} else
 		profile->file.dfa = aa_get_dfa(nulldfa);
 
-	if (!unpack_trans_table(e, profile))
+	if (!unpack_trans_table(e, profile)) {
+		info = "failed to unpack profile transition table";
 		goto fail;
+	}
 
 	if (unpack_nameX(e, AA_STRUCT, "data")) {
+		info = "out of memory";
 		profile->data = kzalloc(sizeof(*profile->data), GFP_KERNEL);
 		if (!profile->data)
 			goto fail;
@@ -761,8 +780,10 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 		params.hashfn = strhash;
 		params.obj_cmpfn = datacmp;
 
-		if (rhashtable_init(profile->data, &params))
+		if (rhashtable_init(profile->data, &params)) {
+			info = "failed to init key, value hash table";
 			goto fail;
+		}
 
 		while (unpack_strdup(e, &key, NULL)) {
 			data = kzalloc(sizeof(*data), GFP_KERNEL);
@@ -784,12 +805,16 @@ static struct aa_profile *unpack_profile(struct aa_ext *e, char **ns_name)
 					       profile->data->p);
 		}
 
-		if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+		if (!unpack_nameX(e, AA_STRUCTEND, NULL)) {
+			info = "failed to unpack end of key, value data table";
 			goto fail;
+		}
 	}
 
-	if (!unpack_nameX(e, AA_STRUCTEND, NULL))
+	if (!unpack_nameX(e, AA_STRUCTEND, NULL)) {
+		info = "failed to unpack end of profile";
 		goto fail;
+	}
 
 	return profile;
 
@@ -798,8 +823,7 @@ fail:
 		name = NULL;
 	else if (!name)
 		name = "unknown";
-	audit_iface(profile, NULL, name, "failed to unpack profile", e,
-		    error);
+	audit_iface(profile, NULL, name, info, e, error);
 	aa_free_profile(profile);
 
 	return ERR_PTR(error);
@@ -832,7 +856,7 @@ static int verify_header(struct aa_ext *e, int required, const char **ns)
 	 * if not specified use previous version
 	 * Mask off everything that is not kernel abi version
 	 */
-	if (VERSION_LT(e->version, v5) && VERSION_GT(e->version, v7)) {
+	if (VERSION_LT(e->version, v5) || VERSION_GT(e->version, v7)) {
 		audit_iface(NULL, NULL, NULL, "unsupported interface version",
 			    e, error);
 		return error;
diff --git a/security/commoncap.c b/security/commoncap.c
index 6bf72b175b49..4f8e09340956 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -294,10 +294,10 @@ int cap_capset(struct cred *new,
  *
  * Determine if an inode having a change applied that's marked ATTR_KILL_PRIV
  * affects the security markings on that inode, and if it is, should
- * inode_killpriv() be invoked or the change rejected?
+ * inode_killpriv() be invoked or the change rejected.
  *
- * Returns 0 if granted; +ve if granted, but inode_killpriv() is required; and
- * -ve to deny the change.
+ * Returns 1 if security.capability has a value, meaning inode_killpriv()
+ * is required, 0 otherwise, meaning inode_killpriv() is not required.
  */
 int cap_inode_need_killpriv(struct dentry *dentry)
 {
@@ -536,7 +536,7 @@ int cap_convert_nscap(struct dentry *dentry, void **ivalue, size_t size)
 static inline int bprm_caps_from_vfs_caps(struct cpu_vfs_cap_data *caps,
 					  struct linux_binprm *bprm,
 					  bool *effective,
-					  bool *has_cap)
+					  bool *has_fcap)
 {
 	struct cred *new = bprm->cred;
 	unsigned i;
@@ -546,7 +546,7 @@ static inline int bprm_caps_from_vfs_caps(struct cpu_vfs_cap_data *caps,
 		*effective = true;
 
 	if (caps->magic_etc & VFS_CAP_REVISION_MASK)
-		*has_cap = true;
+		*has_fcap = true;
 
 	CAP_FOR_EACH_U32(i) {
 		__u32 permitted = caps->permitted.cap[i];
@@ -585,13 +585,14 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
 	struct vfs_ns_cap_data data, *nscaps = &data;
 	struct vfs_cap_data *caps = (struct vfs_cap_data *) &data;
 	kuid_t rootkuid;
-	struct user_namespace *fs_ns = inode->i_sb->s_user_ns;
+	struct user_namespace *fs_ns;
 
 	memset(cpu_caps, 0, sizeof(struct cpu_vfs_cap_data));
 
 	if (!inode)
 		return -ENODATA;
 
+	fs_ns = inode->i_sb->s_user_ns;
 	size = __vfs_getxattr((struct dentry *)dentry, inode,
 			      XATTR_NAME_CAPS, &data, XATTR_CAPS_SZ);
 	if (size == -ENODATA || size == -EOPNOTSUPP)
@@ -652,7 +653,7 @@ int get_vfs_caps_from_disk(const struct dentry *dentry, struct cpu_vfs_cap_data
  * its xattrs and, if present, apply them to the proposed credentials being
  * constructed by execve().
  */
-static int get_file_caps(struct linux_binprm *bprm, bool *effective, bool *has_cap)
+static int get_file_caps(struct linux_binprm *bprm, bool *effective, bool *has_fcap)
 {
 	int rc = 0;
 	struct cpu_vfs_cap_data vcaps;
@@ -683,7 +684,7 @@ static int get_file_caps(struct linux_binprm *bprm, bool *effective, bool *has_c
 		goto out;
 	}
 
-	rc = bprm_caps_from_vfs_caps(&vcaps, bprm, effective, has_cap);
+	rc = bprm_caps_from_vfs_caps(&vcaps, bprm, effective, has_fcap);
 	if (rc == -EINVAL)
 		printk(KERN_NOTICE "%s: cap_from_disk returned %d for %s\n",
 		       __func__, rc, bprm->filename);
@@ -695,6 +696,115 @@ out:
 	return rc;
 }
 
+static inline bool root_privileged(void) { return !issecure(SECURE_NOROOT); }
+
+static inline bool __is_real(kuid_t uid, struct cred *cred)
+{ return uid_eq(cred->uid, uid); }
+
+static inline bool __is_eff(kuid_t uid, struct cred *cred)
+{ return uid_eq(cred->euid, uid); }
+
+static inline bool __is_suid(kuid_t uid, struct cred *cred)
+{ return !__is_real(uid, cred) && __is_eff(uid, cred); }
+
+/*
+ * handle_privileged_root - Handle case of privileged root
+ * @bprm: The execution parameters, including the proposed creds
+ * @has_fcap: Are any file capabilities set?
+ * @effective: Do we have effective root privilege?
+ * @root_uid: This namespace' root UID WRT initial USER namespace
+ *
+ * Handle the case where root is privileged and hasn't been neutered by
+ * SECURE_NOROOT.  If file capabilities are set, they won't be combined with
+ * set UID root and nothing is changed.  If we are root, cap_permitted is
+ * updated.  If we have become set UID root, the effective bit is set.
+ */
+static void handle_privileged_root(struct linux_binprm *bprm, bool has_fcap,
+				   bool *effective, kuid_t root_uid)
+{
+	const struct cred *old = current_cred();
+	struct cred *new = bprm->cred;
+
+	if (!root_privileged())
+		return;
+	/*
+	 * If the legacy file capability is set, then don't set privs
+	 * for a setuid root binary run by a non-root user.  Do set it
+	 * for a root user just to cause least surprise to an admin.
+	 */
+	if (has_fcap && __is_suid(root_uid, new)) {
+		warn_setuid_and_fcaps_mixed(bprm->filename);
+		return;
+	}
+	/*
+	 * To support inheritance of root-permissions and suid-root
+	 * executables under compatibility mode, we override the
+	 * capability sets for the file.
+	 */
+	if (__is_eff(root_uid, new) || __is_real(root_uid, new)) {
+		/* pP' = (cap_bset & ~0) | (pI & ~0) */
+		new->cap_permitted = cap_combine(old->cap_bset,
+						 old->cap_inheritable);
+	}
+	/*
+	 * If only the real uid is 0, we do not set the effective bit.
+	 */
+	if (__is_eff(root_uid, new))
+		*effective = true;
+}
+
+#define __cap_gained(field, target, source) \
+	!cap_issubset(target->cap_##field, source->cap_##field)
+#define __cap_grew(target, source, cred) \
+	!cap_issubset(cred->cap_##target, cred->cap_##source)
+#define __cap_full(field, cred) \
+	cap_issubset(CAP_FULL_SET, cred->cap_##field)
+
+static inline bool __is_setuid(struct cred *new, const struct cred *old)
+{ return !uid_eq(new->euid, old->uid); }
+
+static inline bool __is_setgid(struct cred *new, const struct cred *old)
+{ return !gid_eq(new->egid, old->gid); }
+
+/*
+ * 1) Audit candidate if current->cap_effective is set
+ *
+ * We do not bother to audit if 3 things are true:
+ *   1) cap_effective has all caps
+ *   2) we became root *OR* are were already root
+ *   3) root is supposed to have all caps (SECURE_NOROOT)
+ * Since this is just a normal root execing a process.
+ *
+ * Number 1 above might fail if you don't have a full bset, but I think
+ * that is interesting information to audit.
+ *
+ * A number of other conditions require logging:
+ * 2) something prevented setuid root getting all caps
+ * 3) non-setuid root gets fcaps
+ * 4) non-setuid root gets ambient
+ */
+static inline bool nonroot_raised_pE(struct cred *new, const struct cred *old,
+				     kuid_t root, bool has_fcap)
+{
+	bool ret = false;
+
+	if ((__cap_grew(effective, ambient, new) &&
+	     !(__cap_full(effective, new) &&
+	       (__is_eff(root, new) || __is_real(root, new)) &&
+	       root_privileged())) ||
+	    (root_privileged() &&
+	     __is_suid(root, new) &&
+	     !__cap_full(effective, new)) ||
+	    (!__is_setuid(new, old) &&
+	     ((has_fcap &&
+	       __cap_gained(permitted, new, old)) ||
+	      __cap_gained(ambient, new, old))))
+
+		ret = true;
+
+	return ret;
+}
+
 /**
  * cap_bprm_set_creds - Set up the proposed credentials for execve().
  * @bprm: The execution parameters, including the proposed creds
@@ -707,61 +817,33 @@ int cap_bprm_set_creds(struct linux_binprm *bprm)
 {
 	const struct cred *old = current_cred();
 	struct cred *new = bprm->cred;
-	bool effective, has_cap = false, is_setid;
+	bool effective = false, has_fcap = false, is_setid;
 	int ret;
 	kuid_t root_uid;
 
 	if (WARN_ON(!cap_ambient_invariant_ok(old)))
 		return -EPERM;
 
-	effective = false;
-	ret = get_file_caps(bprm, &effective, &has_cap);
+	ret = get_file_caps(bprm, &effective, &has_fcap);
 	if (ret < 0)
 		return ret;
 
 	root_uid = make_kuid(new->user_ns, 0);
 
-	if (!issecure(SECURE_NOROOT)) {
-		/*
-		 * If the legacy file capability is set, then don't set privs
-		 * for a setuid root binary run by a non-root user.  Do set it
-		 * for a root user just to cause least surprise to an admin.
-		 */
-		if (has_cap && !uid_eq(new->uid, root_uid) && uid_eq(new->euid, root_uid)) {
-			warn_setuid_and_fcaps_mixed(bprm->filename);
-			goto skip;
-		}
-		/*
-		 * To support inheritance of root-permissions and suid-root
-		 * executables under compatibility mode, we override the
-		 * capability sets for the file.
-		 *
-		 * If only the real uid is 0, we do not set the effective bit.
-		 */
-		if (uid_eq(new->euid, root_uid) || uid_eq(new->uid, root_uid)) {
-			/* pP' = (cap_bset & ~0) | (pI & ~0) */
-			new->cap_permitted = cap_combine(old->cap_bset,
-							 old->cap_inheritable);
-		}
-		if (uid_eq(new->euid, root_uid))
-			effective = true;
-	}
-skip:
+	handle_privileged_root(bprm, has_fcap, &effective, root_uid);
 
 	/* if we have fs caps, clear dangerous personality flags */
-	if (!cap_issubset(new->cap_permitted, old->cap_permitted))
+	if (__cap_gained(permitted, new, old))
 		bprm->per_clear |= PER_CLEAR_ON_SETID;
 
-
 	/* Don't let someone trace a set[ug]id/setpcap binary with the revised
 	 * credentials unless they have the appropriate permit.
 	 *
 	 * In addition, if NO_NEW_PRIVS, then ensure we get no new privs.
 	 */
-	is_setid = !uid_eq(new->euid, old->uid) || !gid_eq(new->egid, old->gid);
+	is_setid = __is_setuid(new, old) || __is_setgid(new, old);
 
-	if ((is_setid ||
-	     !cap_issubset(new->cap_permitted, old->cap_permitted)) &&
+	if ((is_setid || __cap_gained(permitted, new, old)) &&
 	    ((bprm->unsafe & ~LSM_UNSAFE_PTRACE) ||
 	     !ptracer_capable(current, new->user_ns))) {
 		/* downgrade; they get no more than they had, and maybe less */
@@ -778,7 +860,7 @@ skip:
 	new->sgid = new->fsgid = new->egid;
 
 	/* File caps or setid cancels ambient. */
-	if (has_cap || is_setid)
+	if (has_fcap || is_setid)
 		cap_clear(new->cap_ambient);
 
 	/*
@@ -799,26 +881,10 @@ skip:
 	if (WARN_ON(!cap_ambient_invariant_ok(new)))
 		return -EPERM;
 
-	/*
-	 * Audit candidate if current->cap_effective is set
-	 *
-	 * We do not bother to audit if 3 things are true:
-	 *   1) cap_effective has all caps
-	 *   2) we are root
-	 *   3) root is supposed to have all caps (SECURE_NOROOT)
-	 * Since this is just a normal root execing a process.
-	 *
-	 * Number 1 above might fail if you don't have a full bset, but I think
-	 * that is interesting information to audit.
-	 */
-	if (!cap_issubset(new->cap_effective, new->cap_ambient)) {
-		if (!cap_issubset(CAP_FULL_SET, new->cap_effective) ||
-		    !uid_eq(new->euid, root_uid) || !uid_eq(new->uid, root_uid) ||
-		    issecure(SECURE_NOROOT)) {
-			ret = audit_log_bprm_fcaps(bprm, new, old);
-			if (ret < 0)
-				return ret;
-		}
+	if (nonroot_raised_pE(new, old, root_uid, has_fcap)) {
+		ret = audit_log_bprm_fcaps(bprm, new, old);
+		if (ret < 0)
+			return ret;
 	}
 
 	new->securebits &= ~issecure_mask(SECURE_KEEP_CAPS);
@@ -828,13 +894,11 @@ skip:
 
 	/* Check for privilege-elevated exec. */
 	bprm->cap_elevated = 0;
-	if (is_setid) {
+	if (is_setid ||
+	    (!__is_real(root_uid, new) &&
+	     (effective ||
+	      __cap_grew(permitted, ambient, new))))
 		bprm->cap_elevated = 1;
-	} else if (!uid_eq(new->uid, root_uid)) {
-		if (effective ||
-		    !cap_issubset(new->cap_permitted, new->cap_ambient))
-			bprm->cap_elevated = 1;
-	}
 
 	return 0;
 }
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 03c1652c9a1f..5ef7e5240563 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * device_cgroup.c - device cgroup subsystem
  *
diff --git a/security/integrity/Makefile b/security/integrity/Makefile
index 8d1f4bf51087..04d6e462b079 100644
--- a/security/integrity/Makefile
+++ b/security/integrity/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for caching inode integrity data (iint)
 #
diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 06554c448dce..6f9e4ce568cd 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -112,21 +112,25 @@ int __init integrity_init_keyring(const unsigned int id)
 int __init integrity_load_x509(const unsigned int id, const char *path)
 {
 	key_ref_t key;
-	char *data;
+	void *data;
+	loff_t size;
 	int rc;
 
 	if (!keyring[id])
 		return -EINVAL;
 
-	rc = integrity_read_file(path, &data);
-	if (rc < 0)
+	rc = kernel_read_file_from_path(path, &data, &size, 0,
+					READING_X509_CERTIFICATE);
+	if (rc < 0) {
+		pr_err("Unable to open file: %s (%d)", path, rc);
 		return rc;
+	}
 
 	key = key_create_or_update(make_key_ref(keyring[id], 1),
 				   "asymmetric",
 				   NULL,
 				   data,
-				   rc,
+				   size,
 				   ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
 				    KEY_USR_VIEW | KEY_USR_READ),
 				   KEY_ALLOC_NOT_IN_QUOTA);
@@ -139,6 +143,6 @@ int __init integrity_load_x509(const unsigned int id, const char *path)
 			  key_ref_to_ptr(key)->description, path);
 		key_ref_put(key);
 	}
-	kfree(data);
+	vfree(data);
 	return 0;
 }
diff --git a/security/integrity/evm/evm.h b/security/integrity/evm/evm.h
index f5f12727771a..241aca315b0c 100644
--- a/security/integrity/evm/evm.h
+++ b/security/integrity/evm/evm.h
@@ -23,6 +23,9 @@
 
 #define EVM_INIT_HMAC	0x0001
 #define EVM_INIT_X509	0x0002
+#define EVM_SETUP       0x80000000 /* userland has signaled key load */
+
+#define EVM_INIT_MASK (EVM_INIT_HMAC | EVM_INIT_X509 | EVM_SETUP)
 
 extern int evm_initialized;
 extern char *evm_hmac;
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
index 1d32cd20009a..bcd64baf8788 100644
--- a/security/integrity/evm/evm_crypto.c
+++ b/security/integrity/evm/evm_crypto.c
@@ -80,7 +80,7 @@ static struct shash_desc *init_desc(char type)
 
 	if (type == EVM_XATTR_HMAC) {
 		if (!(evm_initialized & EVM_INIT_HMAC)) {
-			pr_err("HMAC key is not set\n");
+			pr_err_once("HMAC key is not set\n");
 			return ERR_PTR(-ENOKEY);
 		}
 		tfm = &hmac_tfm;
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index 063d38aef64e..9826c02e2db8 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -49,6 +49,9 @@ char *evm_config_xattrnames[] = {
 	XATTR_NAME_SMACKMMAP,
 #endif
 #endif
+#ifdef CONFIG_SECURITY_APPARMOR
+	XATTR_NAME_APPARMOR,
+#endif
 #ifdef CONFIG_IMA_APPRAISE
 	XATTR_NAME_IMA,
 #endif
diff --git a/security/integrity/evm/evm_secfs.c b/security/integrity/evm/evm_secfs.c
index c8dccd54d501..319cf16d6603 100644
--- a/security/integrity/evm/evm_secfs.c
+++ b/security/integrity/evm/evm_secfs.c
@@ -40,7 +40,7 @@ static ssize_t evm_read_key(struct file *filp, char __user *buf,
 	if (*ppos != 0)
 		return 0;
 
-	sprintf(temp, "%d", evm_initialized);
+	sprintf(temp, "%d", (evm_initialized & ~EVM_SETUP));
 	rc = simple_read_from_buffer(buf, count, ppos, temp, strlen(temp));
 
 	return rc;
@@ -61,24 +61,29 @@ static ssize_t evm_read_key(struct file *filp, char __user *buf,
 static ssize_t evm_write_key(struct file *file, const char __user *buf,
 			     size_t count, loff_t *ppos)
 {
-	char temp[80];
-	int i;
+	int i, ret;
 
-	if (!capable(CAP_SYS_ADMIN) || (evm_initialized & EVM_INIT_HMAC))
+	if (!capable(CAP_SYS_ADMIN) || (evm_initialized & EVM_SETUP))
 		return -EPERM;
 
-	if (count >= sizeof(temp) || count == 0)
-		return -EINVAL;
-
-	if (copy_from_user(temp, buf, count) != 0)
-		return -EFAULT;
+	ret = kstrtoint_from_user(buf, count, 0, &i);
 
-	temp[count] = '\0';
+	if (ret)
+		return ret;
 
-	if ((sscanf(temp, "%d", &i) != 1) || (i != 1))
+	/* Reject invalid values */
+	if (!i || (i & ~EVM_INIT_MASK) != 0)
 		return -EINVAL;
 
-	evm_init_key();
+	if (i & EVM_INIT_HMAC) {
+		ret = evm_init_key();
+		if (ret != 0)
+			return ret;
+		/* Forbid further writes after the symmetric key is loaded */
+		i |= EVM_SETUP;
+	}
+
+	evm_initialized |= i;
 
 	return count;
 }
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 6fc888ca468e..c84e05866052 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -200,55 +200,6 @@ int integrity_kernel_read(struct file *file, loff_t offset,
 }
 
 /*
- * integrity_read_file - read entire file content into the buffer
- *
- * This is function opens a file, allocates the buffer of required
- * size, read entire file content to the buffer and closes the file
- *
- * It is used only by init code.
- *
- */
-int __init integrity_read_file(const char *path, char **data)
-{
-	struct file *file;
-	loff_t size;
-	char *buf;
-	int rc = -EINVAL;
-
-	if (!path || !*path)
-		return -EINVAL;
-
-	file = filp_open(path, O_RDONLY, 0);
-	if (IS_ERR(file)) {
-		rc = PTR_ERR(file);
-		pr_err("Unable to open file: %s (%d)", path, rc);
-		return rc;
-	}
-
-	size = i_size_read(file_inode(file));
-	if (size <= 0)
-		goto out;
-
-	buf = kmalloc(size, GFP_KERNEL);
-	if (!buf) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	rc = integrity_kernel_read(file, 0, buf, size);
-	if (rc == size) {
-		*data = buf;
-	} else {
-		kfree(buf);
-		if (rc >= 0)
-			rc = -EIO;
-	}
-out:
-	fput(file);
-	return rc;
-}
-
-/*
  * integrity_load_keys - load integrity keys hook
  *
  * Hooks is called from init/main.c:kernel_init_freeable()
diff --git a/security/integrity/ima/Makefile b/security/integrity/ima/Makefile
index 29f198bde02b..d921dc4f9eb0 100644
--- a/security/integrity/ima/Makefile
+++ b/security/integrity/ima/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for building Trusted Computing Group's(TCG) runtime Integrity
 # Measurement Architecture(IMA).
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index c2edba8de35e..c7e8db0ea4c0 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -199,42 +199,59 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
 	struct inode *inode = file_inode(file);
 	const char *filename = file->f_path.dentry->d_name.name;
 	int result = 0;
+	int length;
+	void *tmpbuf;
+	u64 i_version;
 	struct {
 		struct ima_digest_data hdr;
 		char digest[IMA_MAX_DIGEST_SIZE];
 	} hash;
 
-	if (!(iint->flags & IMA_COLLECTED)) {
-		u64 i_version = file_inode(file)->i_version;
+	if (iint->flags & IMA_COLLECTED)
+		goto out;
 
-		if (file->f_flags & O_DIRECT) {
-			audit_cause = "failed(directio)";
-			result = -EACCES;
-			goto out;
-		}
+	/*
+	 * Dectecting file change is based on i_version. On filesystems
+	 * which do not support i_version, support is limited to an initial
+	 * measurement/appraisal/audit.
+	 */
+	i_version = file_inode(file)->i_version;
+	hash.hdr.algo = algo;
 
-		hash.hdr.algo = algo;
-
-		result = (!buf) ?  ima_calc_file_hash(file, &hash.hdr) :
-			ima_calc_buffer_hash(buf, size, &hash.hdr);
-		if (!result) {
-			int length = sizeof(hash.hdr) + hash.hdr.length;
-			void *tmpbuf = krealloc(iint->ima_hash, length,
-						GFP_NOFS);
-			if (tmpbuf) {
-				iint->ima_hash = tmpbuf;
-				memcpy(iint->ima_hash, &hash, length);
-				iint->version = i_version;
-				iint->flags |= IMA_COLLECTED;
-			} else
-				result = -ENOMEM;
-		}
+	/* Initialize hash digest to 0's in case of failure */
+	memset(&hash.digest, 0, sizeof(hash.digest));
+
+	if (buf)
+		result = ima_calc_buffer_hash(buf, size, &hash.hdr);
+	else
+		result = ima_calc_file_hash(file, &hash.hdr);
+
+	if (result && result != -EBADF && result != -EINVAL)
+		goto out;
+
+	length = sizeof(hash.hdr) + hash.hdr.length;
+	tmpbuf = krealloc(iint->ima_hash, length, GFP_NOFS);
+	if (!tmpbuf) {
+		result = -ENOMEM;
+		goto out;
 	}
+
+	iint->ima_hash = tmpbuf;
+	memcpy(iint->ima_hash, &hash, length);
+	iint->version = i_version;
+
+	/* Possibly temporary failure due to type of read (eg. O_DIRECT) */
+	if (!result)
+		iint->flags |= IMA_COLLECTED;
 out:
-	if (result)
+	if (result) {
+		if (file->f_flags & O_DIRECT)
+			audit_cause = "failed(directio)";
+
 		integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
 				    filename, "collect_data", audit_cause,
 				    result, 0);
+	}
 	return result;
 }
 
@@ -278,7 +295,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 	}
 
 	result = ima_store_template(entry, violation, inode, filename, pcr);
-	if (!result || result == -EEXIST) {
+	if ((!result || result == -EEXIST) && !(file->f_flags & O_DIRECT)) {
 		iint->flags |= IMA_MEASURED;
 		iint->measured_pcrs |= (0x1 << pcr);
 	}
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 809ba70fbbbf..ec7dfa02c051 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -40,7 +40,7 @@ __setup("ima_appraise=", default_appraise_setup);
  */
 bool is_ima_appraise_enabled(void)
 {
-	return (ima_appraise & IMA_APPRAISE_ENFORCE) ? 1 : 0;
+	return ima_appraise & IMA_APPRAISE_ENFORCE;
 }
 
 /*
@@ -405,7 +405,7 @@ int ima_inode_setxattr(struct dentry *dentry, const char *xattr_name,
 		if (!xattr_value_len || (xvalue->type >= IMA_XATTR_LAST))
 			return -EINVAL;
 		ima_reset_appraise_flags(d_backing_inode(dentry),
-			 (xvalue->type == EVM_IMA_XATTR_DIGSIG) ? 1 : 0);
+			xvalue->type == EVM_IMA_XATTR_DIGSIG);
 		result = 0;
 	}
 	return result;
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 802d5d20f36f..9057b163c378 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -27,11 +27,6 @@
 
 #include "ima.h"
 
-struct ahash_completion {
-	struct completion completion;
-	int err;
-};
-
 /* minimum file size for ahash use */
 static unsigned long ima_ahash_minsize;
 module_param_named(ahash_minsize, ima_ahash_minsize, ulong, 0644);
@@ -196,30 +191,13 @@ static void ima_free_atfm(struct crypto_ahash *tfm)
 		crypto_free_ahash(tfm);
 }
 
-static void ahash_complete(struct crypto_async_request *req, int err)
+static inline int ahash_wait(int err, struct crypto_wait *wait)
 {
-	struct ahash_completion *res = req->data;
 
-	if (err == -EINPROGRESS)
-		return;
-	res->err = err;
-	complete(&res->completion);
-}
+	err = crypto_wait_req(err, wait);
 
-static int ahash_wait(int err, struct ahash_completion *res)
-{
-	switch (err) {
-	case 0:
-		break;
-	case -EINPROGRESS:
-	case -EBUSY:
-		wait_for_completion(&res->completion);
-		reinit_completion(&res->completion);
-		err = res->err;
-		/* fall through */
-	default:
+	if (err)
 		pr_crit_ratelimited("ahash calculation failed: err: %d\n", err);
-	}
 
 	return err;
 }
@@ -233,7 +211,7 @@ static int ima_calc_file_hash_atfm(struct file *file,
 	int rc, read = 0, rbuf_len, active = 0, ahash_rc = 0;
 	struct ahash_request *req;
 	struct scatterlist sg[1];
-	struct ahash_completion res;
+	struct crypto_wait wait;
 	size_t rbuf_size[2];
 
 	hash->length = crypto_ahash_digestsize(tfm);
@@ -242,12 +220,12 @@ static int ima_calc_file_hash_atfm(struct file *file,
 	if (!req)
 		return -ENOMEM;
 
-	init_completion(&res.completion);
+	crypto_init_wait(&wait);
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG |
 				   CRYPTO_TFM_REQ_MAY_SLEEP,
-				   ahash_complete, &res);
+				   crypto_req_done, &wait);
 
-	rc = ahash_wait(crypto_ahash_init(req), &res);
+	rc = ahash_wait(crypto_ahash_init(req), &wait);
 	if (rc)
 		goto out1;
 
@@ -288,7 +266,7 @@ static int ima_calc_file_hash_atfm(struct file *file,
 			 * read/request, wait for the completion of the
 			 * previous ahash_update() request.
 			 */
-			rc = ahash_wait(ahash_rc, &res);
+			rc = ahash_wait(ahash_rc, &wait);
 			if (rc)
 				goto out3;
 		}
@@ -304,7 +282,7 @@ static int ima_calc_file_hash_atfm(struct file *file,
 			 * read/request, wait for the completion of the
 			 * previous ahash_update() request.
 			 */
-			rc = ahash_wait(ahash_rc, &res);
+			rc = ahash_wait(ahash_rc, &wait);
 			if (rc)
 				goto out3;
 		}
@@ -318,7 +296,7 @@ static int ima_calc_file_hash_atfm(struct file *file,
 			active = !active; /* swap buffers, if we use two */
 	}
 	/* wait for the last update request to complete */
-	rc = ahash_wait(ahash_rc, &res);
+	rc = ahash_wait(ahash_rc, &wait);
 out3:
 	if (read)
 		file->f_mode &= ~FMODE_READ;
@@ -327,7 +305,7 @@ out3:
 out2:
 	if (!rc) {
 		ahash_request_set_crypt(req, NULL, hash->digest, 0);
-		rc = ahash_wait(crypto_ahash_final(req), &res);
+		rc = ahash_wait(crypto_ahash_final(req), &wait);
 	}
 out1:
 	ahash_request_free(req);
@@ -441,6 +419,16 @@ int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)
 	loff_t i_size;
 	int rc;
 
+	/*
+	 * For consistency, fail file's opened with the O_DIRECT flag on
+	 * filesystems mounted with/without DAX option.
+	 */
+	if (file->f_flags & O_DIRECT) {
+		hash->length = hash_digest_size[ima_hash_algo];
+		hash->algo = ima_hash_algo;
+		return -EINVAL;
+	}
+
 	i_size = i_size_read(file_inode(file));
 
 	if (ima_ahash_minsize && i_size >= ima_ahash_minsize) {
@@ -527,7 +515,7 @@ static int calc_buffer_ahash_atfm(const void *buf, loff_t len,
 {
 	struct ahash_request *req;
 	struct scatterlist sg;
-	struct ahash_completion res;
+	struct crypto_wait wait;
 	int rc, ahash_rc = 0;
 
 	hash->length = crypto_ahash_digestsize(tfm);
@@ -536,12 +524,12 @@ static int calc_buffer_ahash_atfm(const void *buf, loff_t len,
 	if (!req)
 		return -ENOMEM;
 
-	init_completion(&res.completion);
+	crypto_init_wait(&wait);
 	ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG |
 				   CRYPTO_TFM_REQ_MAY_SLEEP,
-				   ahash_complete, &res);
+				   crypto_req_done, &wait);
 
-	rc = ahash_wait(crypto_ahash_init(req), &res);
+	rc = ahash_wait(crypto_ahash_init(req), &wait);
 	if (rc)
 		goto out;
 
@@ -551,10 +539,10 @@ static int calc_buffer_ahash_atfm(const void *buf, loff_t len,
 	ahash_rc = crypto_ahash_update(req);
 
 	/* wait for the update request to complete */
-	rc = ahash_wait(ahash_rc, &res);
+	rc = ahash_wait(ahash_rc, &wait);
 	if (!rc) {
 		ahash_request_set_crypt(req, NULL, hash->digest, 0);
-		rc = ahash_wait(crypto_ahash_final(req), &res);
+		rc = ahash_wait(crypto_ahash_final(req), &wait);
 	}
 out:
 	ahash_request_free(req);
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index ad491c51e833..fa540c0469da 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -32,7 +32,7 @@ bool ima_canonical_fmt;
 static int __init default_canonical_fmt_setup(char *str)
 {
 #ifdef __BIG_ENDIAN
-	ima_canonical_fmt = 1;
+	ima_canonical_fmt = true;
 #endif
 	return 1;
 }
@@ -429,10 +429,10 @@ static int ima_release_policy(struct inode *inode, struct file *file)
 	}
 
 	ima_update_policy();
-#ifndef	CONFIG_IMA_WRITE_POLICY
+#if !defined(CONFIG_IMA_WRITE_POLICY) && !defined(CONFIG_IMA_READ_POLICY)
 	securityfs_remove(ima_policy);
 	ima_policy = NULL;
-#else
+#elif defined(CONFIG_IMA_WRITE_POLICY)
 	clear_bit(IMA_FS_BUSY, &ima_fs_flags);
 #endif
 	return 0;
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 2aebb7984437..770654694efc 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -51,6 +51,8 @@ static int __init hash_setup(char *str)
 			ima_hash_algo = HASH_ALGO_SHA1;
 		else if (strncmp(str, "md5", 3) == 0)
 			ima_hash_algo = HASH_ALGO_MD5;
+		else
+			return 1;
 		goto out;
 	}
 
@@ -60,6 +62,8 @@ static int __init hash_setup(char *str)
 			break;
 		}
 	}
+	if (i == HASH_ALGO__LAST)
+		return 1;
 out:
 	hash_setup_done = 1;
 	return 1;
@@ -235,11 +239,8 @@ static int process_measurement(struct file *file, char *buf, loff_t size,
 	hash_algo = ima_get_hash_algo(xattr_value, xattr_len);
 
 	rc = ima_collect_measurement(iint, file, buf, size, hash_algo);
-	if (rc != 0) {
-		if (file->f_flags & O_DIRECT)
-			rc = (iint->flags & IMA_PERMIT_DIRECTIO) ? 0 : -EACCES;
+	if (rc != 0 && rc != -EBADF && rc != -EINVAL)
 		goto out_digsig;
-	}
 
 	if (!pathbuf)	/* ima_rdwr_violation possibly pre-fetched */
 		pathname = ima_d_path(&file->f_path, &pathbuf, filename);
@@ -247,12 +248,14 @@ static int process_measurement(struct file *file, char *buf, loff_t size,
 	if (action & IMA_MEASURE)
 		ima_store_measurement(iint, file, pathname,
 				      xattr_value, xattr_len, pcr);
-	if (action & IMA_APPRAISE_SUBMASK)
+	if (rc == 0 && (action & IMA_APPRAISE_SUBMASK))
 		rc = ima_appraise_measurement(func, iint, file, pathname,
 					      xattr_value, xattr_len, opened);
 	if (action & IMA_AUDIT)
 		ima_audit_measurement(iint, pathname);
 
+	if ((file->f_flags & O_DIRECT) && (iint->flags & IMA_PERMIT_DIRECTIO))
+		rc = 0;
 out_digsig:
 	if ((mask & MAY_WRITE) && (iint->flags & IMA_DIGSIG) &&
 	     !(iint->flags & IMA_NEW_FILE))
@@ -359,12 +362,12 @@ void ima_post_path_mknod(struct dentry *dentry)
  */
 int ima_read_file(struct file *file, enum kernel_read_file_id read_id)
 {
+	bool sig_enforce = is_module_sig_enforced();
+
 	if (!file && read_id == READING_MODULE) {
-#ifndef CONFIG_MODULE_SIG_FORCE
-		if ((ima_appraise & IMA_APPRAISE_MODULES) &&
+		if (!sig_enforce && (ima_appraise & IMA_APPRAISE_MODULES) &&
 		    (ima_appraise & IMA_APPRAISE_ENFORCE))
 			return -EACCES;	/* INTEGRITY_UNKNOWN */
-#endif
 		return 0;	/* We rely on module signature checking */
 	}
 	return 0;
@@ -406,6 +409,10 @@ int ima_post_read_file(struct file *file, void *buf, loff_t size,
 	if (!file && read_id == READING_MODULE) /* MODULE_SIG_FORCE enabled */
 		return 0;
 
+	/* permit signed certs */
+	if (!file && read_id == READING_X509_CERTIFICATE)
+		return 0;
+
 	if (!file || !buf || size == 0) { /* should never happen */
 		if (ima_appraise & IMA_APPRAISE_ENFORCE)
 			return -EACCES;
diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 95209a5f8595..ee4613fa5840 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -196,9 +196,9 @@ static int __init policy_setup(char *str)
 		if ((strcmp(p, "tcb") == 0) && !ima_policy)
 			ima_policy = DEFAULT_TCB;
 		else if (strcmp(p, "appraise_tcb") == 0)
-			ima_use_appraise_tcb = 1;
+			ima_use_appraise_tcb = true;
 		else if (strcmp(p, "secure_boot") == 0)
-			ima_use_secure_boot = 1;
+			ima_use_secure_boot = true;
 	}
 
 	return 1;
@@ -207,7 +207,7 @@ __setup("ima_policy=", policy_setup);
 
 static int __init default_appraise_policy_setup(char *str)
 {
-	ima_use_appraise_tcb = 1;
+	ima_use_appraise_tcb = true;
 	return 1;
 }
 __setup("ima_appraise_tcb", default_appraise_policy_setup);
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index a53e7e4ab06c..e1bf040fb110 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -120,8 +120,6 @@ struct integrity_iint_cache *integrity_iint_find(struct inode *inode);
 int integrity_kernel_read(struct file *file, loff_t offset,
 			  void *addr, unsigned long count);
 
-int __init integrity_read_file(const char *path, char **data);
-
 #define INTEGRITY_KEYRING_EVM		0
 #define INTEGRITY_KEYRING_IMA		1
 #define INTEGRITY_KEYRING_MODULE	2
diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index a7a23b5541f8..6462e6654ccf 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -45,10 +45,9 @@ config BIG_KEYS
 	bool "Large payload keys"
 	depends on KEYS
 	depends on TMPFS
-	depends on (CRYPTO_ANSI_CPRNG = y || CRYPTO_DRBG = y)
+	select CRYPTO
 	select CRYPTO_AES
-	select CRYPTO_ECB
-	select CRYPTO_RNG
+	select CRYPTO_GCM
 	help
 	  This option provides support for holding large keys within the kernel
 	  (for example Kerberos ticket caches).  The data may be stored out to
diff --git a/security/keys/Makefile b/security/keys/Makefile
index 57dff0c15809..ef1581b337a3 100644
--- a/security/keys/Makefile
+++ b/security/keys/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for key management
 #
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 835c1ab30d01..929e14978c42 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -1,5 +1,6 @@
 /* Large capacity key type
  *
+ * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
  *
@@ -16,10 +17,10 @@
 #include <linux/shmem_fs.h>
 #include <linux/err.h>
 #include <linux/scatterlist.h>
+#include <linux/random.h>
 #include <keys/user-type.h>
 #include <keys/big_key-type.h>
-#include <crypto/rng.h>
-#include <crypto/skcipher.h>
+#include <crypto/aead.h>
 
 /*
  * Layout of key payload words.
@@ -49,7 +50,12 @@ enum big_key_op {
 /*
  * Key size for big_key data encryption
  */
-#define ENC_KEY_SIZE	16
+#define ENC_KEY_SIZE 32
+
+/*
+ * Authentication tag length
+ */
+#define ENC_AUTHTAG_SIZE 16
 
 /*
  * big_key defined keys take an arbitrary string as the description and an
@@ -64,57 +70,62 @@ struct key_type key_type_big_key = {
 	.destroy		= big_key_destroy,
 	.describe		= big_key_describe,
 	.read			= big_key_read,
+	/* no ->update(); don't add it without changing big_key_crypt() nonce */
 };
 
 /*
- * Crypto names for big_key data encryption
+ * Crypto names for big_key data authenticated encryption
  */
-static const char big_key_rng_name[] = "stdrng";
-static const char big_key_alg_name[] = "ecb(aes)";
+static const char big_key_alg_name[] = "gcm(aes)";
 
 /*
- * Crypto algorithms for big_key data encryption
+ * Crypto algorithms for big_key data authenticated encryption
  */
-static struct crypto_rng *big_key_rng;
-static struct crypto_skcipher *big_key_skcipher;
+static struct crypto_aead *big_key_aead;
 
 /*
- * Generate random key to encrypt big_key data
+ * Since changing the key affects the entire object, we need a mutex.
  */
-static inline int big_key_gen_enckey(u8 *key)
-{
-	return crypto_rng_get_bytes(big_key_rng, key, ENC_KEY_SIZE);
-}
+static DEFINE_MUTEX(big_key_aead_lock);
 
 /*
  * Encrypt/decrypt big_key data
  */
 static int big_key_crypt(enum big_key_op op, u8 *data, size_t datalen, u8 *key)
 {
-	int ret = -EINVAL;
+	int ret;
 	struct scatterlist sgio;
-	SKCIPHER_REQUEST_ON_STACK(req, big_key_skcipher);
-
-	if (crypto_skcipher_setkey(big_key_skcipher, key, ENC_KEY_SIZE)) {
+	struct aead_request *aead_req;
+	/* We always use a zero nonce. The reason we can get away with this is
+	 * because we're using a different randomly generated key for every
+	 * different encryption. Notably, too, key_type_big_key doesn't define
+	 * an .update function, so there's no chance we'll wind up reusing the
+	 * key to encrypt updated data. Simply put: one key, one encryption.
+	 */
+	u8 zero_nonce[crypto_aead_ivsize(big_key_aead)];
+
+	aead_req = aead_request_alloc(big_key_aead, GFP_KERNEL);
+	if (!aead_req)
+		return -ENOMEM;
+
+	memset(zero_nonce, 0, sizeof(zero_nonce));
+	sg_init_one(&sgio, data, datalen + (op == BIG_KEY_ENC ? ENC_AUTHTAG_SIZE : 0));
+	aead_request_set_crypt(aead_req, &sgio, &sgio, datalen, zero_nonce);
+	aead_request_set_callback(aead_req, CRYPTO_TFM_REQ_MAY_SLEEP, NULL, NULL);
+	aead_request_set_ad(aead_req, 0);
+
+	mutex_lock(&big_key_aead_lock);
+	if (crypto_aead_setkey(big_key_aead, key, ENC_KEY_SIZE)) {
 		ret = -EAGAIN;
 		goto error;
 	}
-
-	skcipher_request_set_tfm(req, big_key_skcipher);
-	skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP,
-				      NULL, NULL);
-
-	sg_init_one(&sgio, data, datalen);
-	skcipher_request_set_crypt(req, &sgio, &sgio, datalen, NULL);
-
 	if (op == BIG_KEY_ENC)
-		ret = crypto_skcipher_encrypt(req);
+		ret = crypto_aead_encrypt(aead_req);
 	else
-		ret = crypto_skcipher_decrypt(req);
-
-	skcipher_request_zero(req);
-
+		ret = crypto_aead_decrypt(aead_req);
 error:
+	mutex_unlock(&big_key_aead_lock);
+	aead_request_free(aead_req);
 	return ret;
 }
 
@@ -146,15 +157,13 @@ int big_key_preparse(struct key_preparsed_payload *prep)
 		 *
 		 * File content is stored encrypted with randomly generated key.
 		 */
-		size_t enclen = ALIGN(datalen, crypto_skcipher_blocksize(big_key_skcipher));
+		size_t enclen = datalen + ENC_AUTHTAG_SIZE;
+		loff_t pos = 0;
 
-		/* prepare aligned data to encrypt */
 		data = kmalloc(enclen, GFP_KERNEL);
 		if (!data)
 			return -ENOMEM;
-
 		memcpy(data, prep->data, datalen);
-		memset(data + datalen, 0x00, enclen - datalen);
 
 		/* generate random key */
 		enckey = kmalloc(ENC_KEY_SIZE, GFP_KERNEL);
@@ -162,13 +171,12 @@ int big_key_preparse(struct key_preparsed_payload *prep)
 			ret = -ENOMEM;
 			goto error;
 		}
-
-		ret = big_key_gen_enckey(enckey);
-		if (ret)
+		ret = get_random_bytes_wait(enckey, ENC_KEY_SIZE);
+		if (unlikely(ret))
 			goto err_enckey;
 
 		/* encrypt aligned data */
-		ret = big_key_crypt(BIG_KEY_ENC, data, enclen, enckey);
+		ret = big_key_crypt(BIG_KEY_ENC, data, datalen, enckey);
 		if (ret)
 			goto err_enckey;
 
@@ -179,7 +187,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
 			goto err_enckey;
 		}
 
-		written = kernel_write(file, data, enclen, 0);
+		written = kernel_write(file, data, enclen, &pos);
 		if (written != enclen) {
 			ret = written;
 			if (written >= 0)
@@ -194,7 +202,7 @@ int big_key_preparse(struct key_preparsed_payload *prep)
 		*path = file->f_path;
 		path_get(path);
 		fput(file);
-		kfree(data);
+		kzfree(data);
 	} else {
 		/* Just store the data in a buffer */
 		void *data = kmalloc(datalen, GFP_KERNEL);
@@ -210,9 +218,9 @@ int big_key_preparse(struct key_preparsed_payload *prep)
 err_fput:
 	fput(file);
 err_enckey:
-	kfree(enckey);
+	kzfree(enckey);
 error:
-	kfree(data);
+	kzfree(data);
 	return ret;
 }
 
@@ -226,7 +234,7 @@ void big_key_free_preparse(struct key_preparsed_payload *prep)
 
 		path_put(path);
 	}
-	kfree(prep->payload.data[big_key_data]);
+	kzfree(prep->payload.data[big_key_data]);
 }
 
 /*
@@ -239,7 +247,7 @@ void big_key_revoke(struct key *key)
 
 	/* clear the quota */
 	key_payload_reserve(key, 0);
-	if (key_is_instantiated(key) &&
+	if (key_is_positive(key) &&
 	    (size_t)key->payload.data[big_key_len] > BIG_KEY_FILE_THRESHOLD)
 		vfs_truncate(path, 0);
 }
@@ -258,7 +266,7 @@ void big_key_destroy(struct key *key)
 		path->mnt = NULL;
 		path->dentry = NULL;
 	}
-	kfree(key->payload.data[big_key_data]);
+	kzfree(key->payload.data[big_key_data]);
 	key->payload.data[big_key_data] = NULL;
 }
 
@@ -271,7 +279,7 @@ void big_key_describe(const struct key *key, struct seq_file *m)
 
 	seq_puts(m, key->description);
 
-	if (key_is_instantiated(key))
+	if (key_is_positive(key))
 		seq_printf(m, ": %zu [%s]",
 			   datalen,
 			   datalen > BIG_KEY_FILE_THRESHOLD ? "file" : "buff");
@@ -294,7 +302,8 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
 		struct file *file;
 		u8 *data;
 		u8 *enckey = (u8 *)key->payload.data[big_key_data];
-		size_t enclen = ALIGN(datalen, crypto_skcipher_blocksize(big_key_skcipher));
+		size_t enclen = datalen + ENC_AUTHTAG_SIZE;
+		loff_t pos = 0;
 
 		data = kmalloc(enclen, GFP_KERNEL);
 		if (!data)
@@ -307,7 +316,7 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
 		}
 
 		/* read file to kernel and decrypt */
-		ret = kernel_read(file, 0, data, enclen);
+		ret = kernel_read(file, data, enclen, &pos);
 		if (ret >= 0 && ret != enclen) {
 			ret = -EIO;
 			goto err_fput;
@@ -326,7 +335,7 @@ long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
 err_fput:
 		fput(file);
 error:
-		kfree(data);
+		kzfree(data);
 	} else {
 		ret = datalen;
 		if (copy_to_user(buffer, key->payload.data[big_key_data],
@@ -342,47 +351,31 @@ error:
  */
 static int __init big_key_init(void)
 {
-	struct crypto_skcipher *cipher;
-	struct crypto_rng *rng;
 	int ret;
 
-	rng = crypto_alloc_rng(big_key_rng_name, 0, 0);
-	if (IS_ERR(rng)) {
-		pr_err("Can't alloc rng: %ld\n", PTR_ERR(rng));
-		return PTR_ERR(rng);
-	}
-
-	big_key_rng = rng;
-
-	/* seed RNG */
-	ret = crypto_rng_reset(rng, NULL, crypto_rng_seedsize(rng));
-	if (ret) {
-		pr_err("Can't reset rng: %d\n", ret);
-		goto error_rng;
-	}
-
 	/* init block cipher */
-	cipher = crypto_alloc_skcipher(big_key_alg_name, 0, CRYPTO_ALG_ASYNC);
-	if (IS_ERR(cipher)) {
-		ret = PTR_ERR(cipher);
+	big_key_aead = crypto_alloc_aead(big_key_alg_name, 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(big_key_aead)) {
+		ret = PTR_ERR(big_key_aead);
 		pr_err("Can't alloc crypto: %d\n", ret);
-		goto error_rng;
+		return ret;
+	}
+	ret = crypto_aead_setauthsize(big_key_aead, ENC_AUTHTAG_SIZE);
+	if (ret < 0) {
+		pr_err("Can't set crypto auth tag len: %d\n", ret);
+		goto free_aead;
 	}
-
-	big_key_skcipher = cipher;
 
 	ret = register_key_type(&key_type_big_key);
 	if (ret < 0) {
 		pr_err("Can't register type: %d\n", ret);
-		goto error_cipher;
+		goto free_aead;
 	}
 
 	return 0;
 
-error_cipher:
-	crypto_free_skcipher(big_key_skcipher);
-error_rng:
-	crypto_free_rng(big_key_rng);
+free_aead:
+	crypto_free_aead(big_key_aead);
 	return ret;
 }
 
diff --git a/security/keys/encrypted-keys/Makefile b/security/keys/encrypted-keys/Makefile
index d6f8433250a5..7a44dce6f69d 100644
--- a/security/keys/encrypted-keys/Makefile
+++ b/security/keys/encrypted-keys/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for encrypted keys
 #
diff --git a/security/keys/encrypted-keys/encrypted.c b/security/keys/encrypted-keys/encrypted.c
index 69855ba0d3b3..d92cbf9687c3 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -309,6 +309,13 @@ static struct key *request_user_key(const char *master_desc, const u8 **master_k
 
 	down_read(&ukey->sem);
 	upayload = user_key_payload_locked(ukey);
+	if (!upayload) {
+		/* key was revoked before we acquired its semaphore */
+		up_read(&ukey->sem);
+		key_put(ukey);
+		ukey = ERR_PTR(-EKEYREVOKED);
+		goto error;
+	}
 	*master_key = upayload->data;
 	*master_keylen = upayload->datalen;
 error:
@@ -847,7 +854,7 @@ static int encrypted_update(struct key *key, struct key_preparsed_payload *prep)
 	size_t datalen = prep->datalen;
 	int ret = 0;
 
-	if (test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+	if (key_is_negative(key))
 		return -ENOKEY;
 	if (datalen <= 0 || datalen > 32767 || !prep->data)
 		return -EINVAL;
diff --git a/security/keys/encrypted-keys/encrypted.h b/security/keys/encrypted-keys/encrypted.h
index 47802c0de735..1809995db452 100644
--- a/security/keys/encrypted-keys/encrypted.h
+++ b/security/keys/encrypted-keys/encrypted.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ENCRYPTED_KEY_H
 #define __ENCRYPTED_KEY_H
 
diff --git a/security/keys/gc.c b/security/keys/gc.c
index 87cb260e4890..afb3a9175d76 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -30,7 +30,7 @@ DECLARE_WORK(key_gc_work, key_garbage_collector);
  * Reaper for links from keyrings to dead keys.
  */
 static void key_gc_timer_func(unsigned long);
-static DEFINE_TIMER(key_gc_timer, key_gc_timer_func, 0, 0);
+static DEFINE_TIMER(key_gc_timer, key_gc_timer_func);
 
 static time_t key_gc_next_run = LONG_MAX;
 static struct key_type *key_gc_dead_keytype;
@@ -129,15 +129,15 @@ static noinline void key_gc_unused_keys(struct list_head *keys)
 	while (!list_empty(keys)) {
 		struct key *key =
 			list_entry(keys->next, struct key, graveyard_link);
+		short state = key->state;
+
 		list_del(&key->graveyard_link);
 
 		kdebug("- %u", key->serial);
 		key_check(key);
 
 		/* Throw away the key data if the key is instantiated */
-		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
-		    !test_bit(KEY_FLAG_NEGATIVE, &key->flags) &&
-		    key->type->destroy)
+		if (state == KEY_IS_POSITIVE && key->type->destroy)
 			key->type->destroy(key);
 
 		security_key_free(key);
@@ -151,7 +151,7 @@ static noinline void key_gc_unused_keys(struct list_head *keys)
 		}
 
 		atomic_dec(&key->user->nkeys);
-		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags))
+		if (state != KEY_IS_UNINSTANTIATED)
 			atomic_dec(&key->user->nikeys);
 
 		key_user_put(key->user);
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 1c02c6547038..503adbae7b0d 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -141,7 +141,7 @@ extern key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 extern key_ref_t search_my_process_keyrings(struct keyring_search_context *ctx);
 extern key_ref_t search_process_keyrings(struct keyring_search_context *ctx);
 
-extern struct key *find_keyring_by_name(const char *name, bool skip_perm_check);
+extern struct key *find_keyring_by_name(const char *name, bool uid_keyring);
 
 extern int install_user_keyrings(void);
 extern int install_thread_keyring_to_cred(struct cred *);
diff --git a/security/keys/key.c b/security/keys/key.c
index 83da68d98b40..83bf4b4afd49 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -54,10 +54,10 @@ void __key_check(const struct key *key)
 struct key_user *key_user_lookup(kuid_t uid)
 {
 	struct key_user *candidate = NULL, *user;
-	struct rb_node *parent = NULL;
-	struct rb_node **p;
+	struct rb_node *parent, **p;
 
 try_again:
+	parent = NULL;
 	p = &key_user_tree.rb_node;
 	spin_lock(&key_user_lock);
 
@@ -302,6 +302,8 @@ struct key *key_alloc(struct key_type *type, const char *desc,
 		key->flags |= 1 << KEY_FLAG_IN_QUOTA;
 	if (flags & KEY_ALLOC_BUILT_IN)
 		key->flags |= 1 << KEY_FLAG_BUILTIN;
+	if (flags & KEY_ALLOC_UID_KEYRING)
+		key->flags |= 1 << KEY_FLAG_UID_KEYRING;
 
 #ifdef KEY_DEBUGGING
 	key->magic = KEY_DEBUG_MAGIC;
@@ -400,6 +402,18 @@ int key_payload_reserve(struct key *key, size_t datalen)
 EXPORT_SYMBOL(key_payload_reserve);
 
 /*
+ * Change the key state to being instantiated.
+ */
+static void mark_key_instantiated(struct key *key, int reject_error)
+{
+	/* Commit the payload before setting the state; barrier versus
+	 * key_read_state().
+	 */
+	smp_store_release(&key->state,
+			  (reject_error < 0) ? reject_error : KEY_IS_POSITIVE);
+}
+
+/*
  * Instantiate a key and link it into the target keyring atomically.  Must be
  * called with the target keyring's semaphore writelocked.  The target key's
  * semaphore need not be locked as instantiation is serialised by
@@ -422,14 +436,14 @@ static int __key_instantiate_and_link(struct key *key,
 	mutex_lock(&key_construction_mutex);
 
 	/* can't instantiate twice */
-	if (!test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
+	if (key->state == KEY_IS_UNINSTANTIATED) {
 		/* instantiate the key */
 		ret = key->type->instantiate(key, prep);
 
 		if (ret == 0) {
 			/* mark the key as being instantiated */
 			atomic_inc(&key->user->nikeys);
-			set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
+			mark_key_instantiated(key, 0);
 
 			if (test_and_clear_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags))
 				awaken = 1;
@@ -575,13 +589,10 @@ int key_reject_and_link(struct key *key,
 	mutex_lock(&key_construction_mutex);
 
 	/* can't instantiate twice */
-	if (!test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
+	if (key->state == KEY_IS_UNINSTANTIATED) {
 		/* mark the key as being negatively instantiated */
 		atomic_inc(&key->user->nikeys);
-		key->reject_error = -error;
-		smp_wmb();
-		set_bit(KEY_FLAG_NEGATIVE, &key->flags);
-		set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
+		mark_key_instantiated(key, -error);
 		now = current_kernel_time();
 		key->expiry = now.tv_sec + timeout;
 		key_schedule_gc(key->expiry + key_gc_delay);
@@ -750,8 +761,8 @@ static inline key_ref_t __key_update(key_ref_t key_ref,
 
 	ret = key->type->update(key, prep);
 	if (ret == 0)
-		/* updating a negative key instantiates it */
-		clear_bit(KEY_FLAG_NEGATIVE, &key->flags);
+		/* Updating a negative key positively instantiates it */
+		mark_key_instantiated(key, 0);
 
 	up_write(&key->sem);
 
@@ -934,6 +945,16 @@ error:
 	 */
 	__key_link_end(keyring, &index_key, edit);
 
+	key = key_ref_to_ptr(key_ref);
+	if (test_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags)) {
+		ret = wait_for_key_construction(key, true);
+		if (ret < 0) {
+			key_ref_put(key_ref);
+			key_ref = ERR_PTR(ret);
+			goto error_free_prep;
+		}
+	}
+
 	key_ref = __key_update(key_ref, &prep);
 	goto error_free_prep;
 }
@@ -984,8 +1005,8 @@ int key_update(key_ref_t key_ref, const void *payload, size_t plen)
 
 	ret = key->type->update(key, &prep);
 	if (ret == 0)
-		/* updating a negative key instantiates it */
-		clear_bit(KEY_FLAG_NEGATIVE, &key->flags);
+		/* Updating a negative key positively instantiates it */
+		mark_key_instantiated(key, 0);
 
 	up_write(&key->sem);
 
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index ab0b337c84b4..76d22f726ae4 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -766,12 +766,16 @@ long keyctl_read_key(key_serial_t keyid, char __user *buffer, size_t buflen)
 
 	key = key_ref_to_ptr(key_ref);
 
+	ret = key_read_state(key);
+	if (ret < 0)
+		goto error2; /* Negatively instantiated */
+
 	/* see if we can read it directly */
 	ret = key_permission(key_ref, KEY_NEED_READ);
 	if (ret == 0)
 		goto can_read_key;
 	if (ret != -EACCES)
-		goto error;
+		goto error2;
 
 	/* we can't; see if it's searchable from this process's keyrings
 	 * - we automatically take account of the fact that it may be
@@ -896,7 +900,7 @@ long keyctl_chown_key(key_serial_t id, uid_t user, gid_t group)
 		atomic_dec(&key->user->nkeys);
 		atomic_inc(&newowner->nkeys);
 
-		if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
+		if (key->state != KEY_IS_UNINSTANTIATED) {
 			atomic_dec(&key->user->nikeys);
 			atomic_inc(&newowner->nikeys);
 		}
@@ -1406,11 +1410,9 @@ long keyctl_assume_authority(key_serial_t id)
 	}
 
 	ret = keyctl_change_reqkey_auth(authkey);
-	if (ret < 0)
-		goto error;
+	if (ret == 0)
+		ret = authkey->serial;
 	key_put(authkey);
-
-	ret = authkey->serial;
 error:
 	return ret;
 }
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index de81793f9920..36f842ec87f0 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -414,7 +414,7 @@ static void keyring_describe(const struct key *keyring, struct seq_file *m)
 	else
 		seq_puts(m, "[anon]");
 
-	if (key_is_instantiated(keyring)) {
+	if (key_is_positive(keyring)) {
 		if (keyring->keys.nr_leaves_on_tree != 0)
 			seq_printf(m, ": %lu", keyring->keys.nr_leaves_on_tree);
 		else
@@ -423,7 +423,7 @@ static void keyring_describe(const struct key *keyring, struct seq_file *m)
 }
 
 struct keyring_read_iterator_context {
-	size_t			qty;
+	size_t			buflen;
 	size_t			count;
 	key_serial_t __user	*buffer;
 };
@@ -435,9 +435,9 @@ static int keyring_read_iterator(const void *object, void *data)
 	int ret;
 
 	kenter("{%s,%d},,{%zu/%zu}",
-	       key->type->name, key->serial, ctx->count, ctx->qty);
+	       key->type->name, key->serial, ctx->count, ctx->buflen);
 
-	if (ctx->count >= ctx->qty)
+	if (ctx->count >= ctx->buflen)
 		return 1;
 
 	ret = put_user(key->serial, ctx->buffer);
@@ -459,38 +459,33 @@ static long keyring_read(const struct key *keyring,
 			 char __user *buffer, size_t buflen)
 {
 	struct keyring_read_iterator_context ctx;
-	unsigned long nr_keys;
-	int ret;
+	long ret;
 
 	kenter("{%d},,%zu", key_serial(keyring), buflen);
 
 	if (buflen & (sizeof(key_serial_t) - 1))
 		return -EINVAL;
 
-	nr_keys = keyring->keys.nr_leaves_on_tree;
-	if (nr_keys == 0)
-		return 0;
-
-	/* Calculate how much data we could return */
-	ctx.qty = nr_keys * sizeof(key_serial_t);
-
-	if (!buffer || !buflen)
-		return ctx.qty;
-
-	if (buflen > ctx.qty)
-		ctx.qty = buflen;
-
-	/* Copy the IDs of the subscribed keys into the buffer */
-	ctx.buffer = (key_serial_t __user *)buffer;
-	ctx.count = 0;
-	ret = assoc_array_iterate(&keyring->keys, keyring_read_iterator, &ctx);
-	if (ret < 0) {
-		kleave(" = %d [iterate]", ret);
-		return ret;
+	/* Copy as many key IDs as fit into the buffer */
+	if (buffer && buflen) {
+		ctx.buffer = (key_serial_t __user *)buffer;
+		ctx.buflen = buflen;
+		ctx.count = 0;
+		ret = assoc_array_iterate(&keyring->keys,
+					  keyring_read_iterator, &ctx);
+		if (ret < 0) {
+			kleave(" = %ld [iterate]", ret);
+			return ret;
+		}
 	}
 
-	kleave(" = %zu [ok]", ctx.count);
-	return ctx.count;
+	/* Return the size of the buffer needed */
+	ret = keyring->keys.nr_leaves_on_tree * sizeof(key_serial_t);
+	if (ret <= buflen)
+		kleave("= %ld [ok]", ret);
+	else
+		kleave("= %ld [buffer too small]", ret);
+	return ret;
 }
 
 /*
@@ -557,7 +552,8 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
 {
 	struct keyring_search_context *ctx = iterator_data;
 	const struct key *key = keyring_ptr_to_key(object);
-	unsigned long kflags = key->flags;
+	unsigned long kflags = READ_ONCE(key->flags);
+	short state = READ_ONCE(key->state);
 
 	kenter("{%d}", key->serial);
 
@@ -569,6 +565,8 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
 
 	/* skip invalidated, revoked and expired keys */
 	if (ctx->flags & KEYRING_SEARCH_DO_STATE_CHECK) {
+		time_t expiry = READ_ONCE(key->expiry);
+
 		if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
 			      (1 << KEY_FLAG_REVOKED))) {
 			ctx->result = ERR_PTR(-EKEYREVOKED);
@@ -576,7 +574,7 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
 			goto skipped;
 		}
 
-		if (key->expiry && ctx->now.tv_sec >= key->expiry) {
+		if (expiry && ctx->now.tv_sec >= expiry) {
 			if (!(ctx->flags & KEYRING_SEARCH_SKIP_EXPIRED))
 				ctx->result = ERR_PTR(-EKEYEXPIRED);
 			kleave(" = %d [expire]", ctx->skipped_ret);
@@ -601,9 +599,8 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
 
 	if (ctx->flags & KEYRING_SEARCH_DO_STATE_CHECK) {
 		/* we set a different error code if we pass a negative key */
-		if (kflags & (1 << KEY_FLAG_NEGATIVE)) {
-			smp_rmb();
-			ctx->result = ERR_PTR(key->reject_error);
+		if (state < 0) {
+			ctx->result = ERR_PTR(state);
 			kleave(" = %d [neg]", ctx->skipped_ret);
 			goto skipped;
 		}
@@ -1101,15 +1098,15 @@ found:
 /*
  * Find a keyring with the specified name.
  *
- * All named keyrings in the current user namespace are searched, provided they
- * grant Search permission directly to the caller (unless this check is
- * skipped).  Keyrings whose usage points have reached zero or who have been
- * revoked are skipped.
+ * Only keyrings that have nonzero refcount, are not revoked, and are owned by a
+ * user in the current user namespace are considered.  If @uid_keyring is %true,
+ * the keyring additionally must have been allocated as a user or user session
+ * keyring; otherwise, it must grant Search permission directly to the caller.
  *
  * Returns a pointer to the keyring with the keyring's refcount having being
  * incremented on success.  -ENOKEY is returned if a key could not be found.
  */
-struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
+struct key *find_keyring_by_name(const char *name, bool uid_keyring)
 {
 	struct key *keyring;
 	int bucket;
@@ -1137,10 +1134,15 @@ struct key *find_keyring_by_name(const char *name, bool skip_perm_check)
 			if (strcmp(keyring->description, name) != 0)
 				continue;
 
-			if (!skip_perm_check &&
-			    key_permission(make_key_ref(keyring, 0),
-					   KEY_NEED_SEARCH) < 0)
-				continue;
+			if (uid_keyring) {
+				if (!test_bit(KEY_FLAG_UID_KEYRING,
+					      &keyring->flags))
+					continue;
+			} else {
+				if (key_permission(make_key_ref(keyring, 0),
+						   KEY_NEED_SEARCH) < 0)
+					continue;
+			}
 
 			/* we've got a match but we might end up racing with
 			 * key_cleanup() if the keyring is currently 'dead'
diff --git a/security/keys/permission.c b/security/keys/permission.c
index 732cc0beffdf..a72b4dd70c8a 100644
--- a/security/keys/permission.c
+++ b/security/keys/permission.c
@@ -88,7 +88,8 @@ EXPORT_SYMBOL(key_task_permission);
  */
 int key_validate(const struct key *key)
 {
-	unsigned long flags = key->flags;
+	unsigned long flags = READ_ONCE(key->flags);
+	time_t expiry = READ_ONCE(key->expiry);
 
 	if (flags & (1 << KEY_FLAG_INVALIDATED))
 		return -ENOKEY;
@@ -99,9 +100,9 @@ int key_validate(const struct key *key)
 		return -EKEYREVOKED;
 
 	/* check it hasn't expired */
-	if (key->expiry) {
+	if (expiry) {
 		struct timespec now = current_kernel_time();
-		if (now.tv_sec >= key->expiry)
+		if (now.tv_sec >= expiry)
 			return -EKEYEXPIRED;
 	}
 
diff --git a/security/keys/proc.c b/security/keys/proc.c
index bf08d02b6646..6d1fcbba1e09 100644
--- a/security/keys/proc.c
+++ b/security/keys/proc.c
@@ -179,15 +179,18 @@ static int proc_keys_show(struct seq_file *m, void *v)
 	struct rb_node *_p = v;
 	struct key *key = rb_entry(_p, struct key, serial_node);
 	struct timespec now;
+	time_t expiry;
 	unsigned long timo;
+	unsigned long flags;
 	key_ref_t key_ref, skey_ref;
 	char xbuf[16];
+	short state;
 	int rc;
 
 	struct keyring_search_context ctx = {
 		.index_key.type		= key->type,
 		.index_key.description	= key->description,
-		.cred			= current_cred(),
+		.cred			= m->file->f_cred,
 		.match_data.cmp		= lookup_user_key_possessed,
 		.match_data.raw_data	= key,
 		.match_data.lookup_type	= KEYRING_SEARCH_LOOKUP_DIRECT,
@@ -207,11 +210,7 @@ static int proc_keys_show(struct seq_file *m, void *v)
 		}
 	}
 
-	/* check whether the current task is allowed to view the key (assuming
-	 * non-possession)
-	 * - the caller holds a spinlock, and thus the RCU read lock, making our
-	 *   access to __current_cred() safe
-	 */
+	/* check whether the current task is allowed to view the key */
 	rc = key_task_permission(key_ref, ctx.cred, KEY_NEED_VIEW);
 	if (rc < 0)
 		return 0;
@@ -221,12 +220,13 @@ static int proc_keys_show(struct seq_file *m, void *v)
 	rcu_read_lock();
 
 	/* come up with a suitable timeout value */
-	if (key->expiry == 0) {
+	expiry = READ_ONCE(key->expiry);
+	if (expiry == 0) {
 		memcpy(xbuf, "perm", 5);
-	} else if (now.tv_sec >= key->expiry) {
+	} else if (now.tv_sec >= expiry) {
 		memcpy(xbuf, "expd", 5);
 	} else {
-		timo = key->expiry - now.tv_sec;
+		timo = expiry - now.tv_sec;
 
 		if (timo < 60)
 			sprintf(xbuf, "%lus", timo);
@@ -240,18 +240,21 @@ static int proc_keys_show(struct seq_file *m, void *v)
 			sprintf(xbuf, "%luw", timo / (60*60*24*7));
 	}
 
-#define showflag(KEY, LETTER, FLAG) \
-	(test_bit(FLAG,	&(KEY)->flags) ? LETTER : '-')
+	state = key_read_state(key);
+
+#define showflag(FLAGS, LETTER, FLAG) \
+	((FLAGS & (1 << FLAG)) ? LETTER : '-')
 
+	flags = READ_ONCE(key->flags);
 	seq_printf(m, "%08x %c%c%c%c%c%c%c %5d %4s %08x %5d %5d %-9.9s ",
 		   key->serial,
-		   showflag(key, 'I', KEY_FLAG_INSTANTIATED),
-		   showflag(key, 'R', KEY_FLAG_REVOKED),
-		   showflag(key, 'D', KEY_FLAG_DEAD),
-		   showflag(key, 'Q', KEY_FLAG_IN_QUOTA),
-		   showflag(key, 'U', KEY_FLAG_USER_CONSTRUCT),
-		   showflag(key, 'N', KEY_FLAG_NEGATIVE),
-		   showflag(key, 'i', KEY_FLAG_INVALIDATED),
+		   state != KEY_IS_UNINSTANTIATED ? 'I' : '-',
+		   showflag(flags, 'R', KEY_FLAG_REVOKED),
+		   showflag(flags, 'D', KEY_FLAG_DEAD),
+		   showflag(flags, 'Q', KEY_FLAG_IN_QUOTA),
+		   showflag(flags, 'U', KEY_FLAG_USER_CONSTRUCT),
+		   state < 0 ? 'N' : '-',
+		   showflag(flags, 'i', KEY_FLAG_INVALIDATED),
 		   refcount_read(&key->usage),
 		   xbuf,
 		   key->perm,
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 86bced9fdbdf..740affd65ee9 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -77,7 +77,8 @@ int install_user_keyrings(void)
 		if (IS_ERR(uid_keyring)) {
 			uid_keyring = keyring_alloc(buf, user->uid, INVALID_GID,
 						    cred, user_keyring_perm,
-						    KEY_ALLOC_IN_QUOTA,
+						    KEY_ALLOC_UID_KEYRING |
+							KEY_ALLOC_IN_QUOTA,
 						    NULL, NULL);
 			if (IS_ERR(uid_keyring)) {
 				ret = PTR_ERR(uid_keyring);
@@ -94,7 +95,8 @@ int install_user_keyrings(void)
 			session_keyring =
 				keyring_alloc(buf, user->uid, INVALID_GID,
 					      cred, user_keyring_perm,
-					      KEY_ALLOC_IN_QUOTA,
+					      KEY_ALLOC_UID_KEYRING |
+						  KEY_ALLOC_IN_QUOTA,
 					      NULL, NULL);
 			if (IS_ERR(session_keyring)) {
 				ret = PTR_ERR(session_keyring);
@@ -728,7 +730,7 @@ try_again:
 
 	ret = -EIO;
 	if (!(lflags & KEY_LOOKUP_PARTIAL) &&
-	    !test_bit(KEY_FLAG_INSTANTIATED, &key->flags))
+	    key_read_state(key) == KEY_IS_UNINSTANTIATED)
 		goto invalid_key;
 
 	/* check the permissions */
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 63e63a42db3c..e8036cd0ad54 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -595,10 +595,9 @@ int wait_for_key_construction(struct key *key, bool intr)
 			  intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
 	if (ret)
 		return -ERESTARTSYS;
-	if (test_bit(KEY_FLAG_NEGATIVE, &key->flags)) {
-		smp_rmb();
-		return key->reject_error;
-	}
+	ret = key_read_state(key);
+	if (ret < 0)
+		return ret;
 	return key_validate(key);
 }
 EXPORT_SYMBOL(wait_for_key_construction);
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index afe9d22ab361..424e1d90412e 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -73,7 +73,7 @@ static void request_key_auth_describe(const struct key *key,
 
 	seq_puts(m, "key:");
 	seq_puts(m, key->description);
-	if (key_is_instantiated(key))
+	if (key_is_positive(key))
 		seq_printf(m, " pid:%d ci:%zu", rka->pid, rka->callout_len);
 }
 
@@ -120,6 +120,18 @@ static void request_key_auth_revoke(struct key *key)
 	}
 }
 
+static void free_request_key_auth(struct request_key_auth *rka)
+{
+	if (!rka)
+		return;
+	key_put(rka->target_key);
+	key_put(rka->dest_keyring);
+	if (rka->cred)
+		put_cred(rka->cred);
+	kfree(rka->callout_info);
+	kfree(rka);
+}
+
 /*
  * Destroy an instantiation authorisation token key.
  */
@@ -129,15 +141,7 @@ static void request_key_auth_destroy(struct key *key)
 
 	kenter("{%d}", key->serial);
 
-	if (rka->cred) {
-		put_cred(rka->cred);
-		rka->cred = NULL;
-	}
-
-	key_put(rka->target_key);
-	key_put(rka->dest_keyring);
-	kfree(rka->callout_info);
-	kfree(rka);
+	free_request_key_auth(rka);
 }
 
 /*
@@ -151,22 +155,18 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,
 	const struct cred *cred = current->cred;
 	struct key *authkey = NULL;
 	char desc[20];
-	int ret;
+	int ret = -ENOMEM;
 
 	kenter("%d,", target->serial);
 
 	/* allocate a auth record */
-	rka = kmalloc(sizeof(*rka), GFP_KERNEL);
-	if (!rka) {
-		kleave(" = -ENOMEM");
-		return ERR_PTR(-ENOMEM);
-	}
-	rka->callout_info = kmalloc(callout_len, GFP_KERNEL);
-	if (!rka->callout_info) {
-		kleave(" = -ENOMEM");
-		kfree(rka);
-		return ERR_PTR(-ENOMEM);
-	}
+	rka = kzalloc(sizeof(*rka), GFP_KERNEL);
+	if (!rka)
+		goto error;
+	rka->callout_info = kmemdup(callout_info, callout_len, GFP_KERNEL);
+	if (!rka->callout_info)
+		goto error_free_rka;
+	rka->callout_len = callout_len;
 
 	/* see if the calling process is already servicing the key request of
 	 * another process */
@@ -176,8 +176,12 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,
 
 		/* if the auth key has been revoked, then the key we're
 		 * servicing is already instantiated */
-		if (test_bit(KEY_FLAG_REVOKED, &cred->request_key_auth->flags))
-			goto auth_key_revoked;
+		if (test_bit(KEY_FLAG_REVOKED,
+			     &cred->request_key_auth->flags)) {
+			up_read(&cred->request_key_auth->sem);
+			ret = -EKEYREVOKED;
+			goto error_free_rka;
+		}
 
 		irka = cred->request_key_auth->payload.data[0];
 		rka->cred = get_cred(irka->cred);
@@ -193,8 +197,6 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,
 
 	rka->target_key = key_get(target);
 	rka->dest_keyring = key_get(dest_keyring);
-	memcpy(rka->callout_info, callout_info, callout_len);
-	rka->callout_len = callout_len;
 
 	/* allocate the auth key */
 	sprintf(desc, "%x", target->serial);
@@ -205,32 +207,22 @@ struct key *request_key_auth_new(struct key *target, const void *callout_info,
 			    KEY_USR_VIEW, KEY_ALLOC_NOT_IN_QUOTA, NULL);
 	if (IS_ERR(authkey)) {
 		ret = PTR_ERR(authkey);
-		goto error_alloc;
+		goto error_free_rka;
 	}
 
 	/* construct the auth key */
 	ret = key_instantiate_and_link(authkey, rka, 0, NULL, NULL);
 	if (ret < 0)
-		goto error_inst;
+		goto error_put_authkey;
 
 	kleave(" = {%d,%d}", authkey->serial, refcount_read(&authkey->usage));
 	return authkey;
 
-auth_key_revoked:
-	up_read(&cred->request_key_auth->sem);
-	kfree(rka->callout_info);
-	kfree(rka);
-	kleave("= -EKEYREVOKED");
-	return ERR_PTR(-EKEYREVOKED);
-
-error_inst:
-	key_revoke(authkey);
+error_put_authkey:
 	key_put(authkey);
-error_alloc:
-	key_put(rka->target_key);
-	key_put(rka->dest_keyring);
-	kfree(rka->callout_info);
-	kfree(rka);
+error_free_rka:
+	free_request_key_auth(rka);
+error:
 	kleave("= %d", ret);
 	return ERR_PTR(ret);
 }
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index ddfaebf60fc8..98aa89ff7bfd 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -1066,7 +1066,7 @@ static int trusted_update(struct key *key, struct key_preparsed_payload *prep)
 	char *datablob;
 	int ret = 0;
 
-	if (test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+	if (key_is_negative(key))
 		return -ENOKEY;
 	p = key->payload.data[0];
 	if (!p->migratable)
@@ -1147,20 +1147,21 @@ static long trusted_read(const struct key *key, char __user *buffer,
 	p = dereference_key_locked(key);
 	if (!p)
 		return -EINVAL;
-	if (!buffer || buflen <= 0)
-		return 2 * p->blob_len;
-	ascii_buf = kmalloc(2 * p->blob_len, GFP_KERNEL);
-	if (!ascii_buf)
-		return -ENOMEM;
 
-	bufp = ascii_buf;
-	for (i = 0; i < p->blob_len; i++)
-		bufp = hex_byte_pack(bufp, p->blob[i]);
-	if ((copy_to_user(buffer, ascii_buf, 2 * p->blob_len)) != 0) {
+	if (buffer && buflen >= 2 * p->blob_len) {
+		ascii_buf = kmalloc(2 * p->blob_len, GFP_KERNEL);
+		if (!ascii_buf)
+			return -ENOMEM;
+
+		bufp = ascii_buf;
+		for (i = 0; i < p->blob_len; i++)
+			bufp = hex_byte_pack(bufp, p->blob[i]);
+		if (copy_to_user(buffer, ascii_buf, 2 * p->blob_len) != 0) {
+			kzfree(ascii_buf);
+			return -EFAULT;
+		}
 		kzfree(ascii_buf);
-		return -EFAULT;
 	}
-	kzfree(ascii_buf);
 	return 2 * p->blob_len;
 }
 
diff --git a/security/keys/trusted.h b/security/keys/trusted.h
index ff001a5dcb24..8d5fe9eafb22 100644
--- a/security/keys/trusted.h
+++ b/security/keys/trusted.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TRUSTED_KEY_H
 #define __TRUSTED_KEY_H
 
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index 3d8c68eba516..9f558bedba23 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -114,7 +114,7 @@ int user_update(struct key *key, struct key_preparsed_payload *prep)
 
 	/* attach the new data, displacing the old */
 	key->expiry = prep->expiry;
-	if (!test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+	if (key_is_positive(key))
 		zap = dereference_key_locked(key);
 	rcu_assign_keypointer(key, prep->payload.data[0]);
 	prep->payload.data[0] = NULL;
@@ -162,7 +162,7 @@ EXPORT_SYMBOL_GPL(user_destroy);
 void user_describe(const struct key *key, struct seq_file *m)
 {
 	seq_puts(m, key->description);
-	if (key_is_instantiated(key))
+	if (key_is_positive(key))
 		seq_printf(m, ": %u", key->datalen);
 }
 
diff --git a/security/min_addr.c b/security/min_addr.c
index f728728f193b..94d2b0cf0e7b 100644
--- a/security/min_addr.c
+++ b/security/min_addr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/security.h>
diff --git a/security/selinux/Makefile b/security/selinux/Makefile
index ff5895ede96f..c7161f8792b2 100644
--- a/security/selinux/Makefile
+++ b/security/selinux/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for building the SELinux module as part of the kernel tree.
 #
diff --git a/security/selinux/include/avc.h b/security/selinux/include/avc.h
index a5004e9de11a..57d61cf36500 100644
--- a/security/selinux/include/avc.h
+++ b/security/selinux/include/avc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Access vector cache interface for object managers.
  *
diff --git a/security/selinux/include/avc_ss.h b/security/selinux/include/avc_ss.h
index 37d57dadd476..3bcc72769b87 100644
--- a/security/selinux/include/avc_ss.h
+++ b/security/selinux/include/avc_ss.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Access vector cache interface for the security server.
  *
diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h
index 35ffb29a69cb..cc35695d97b4 100644
--- a/security/selinux/include/classmap.h
+++ b/security/selinux/include/classmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/capability.h>
 
 #define COMMON_FILE_SOCK_PERMS "ioctl", "read", "write", "create", \
diff --git a/security/selinux/include/initial_sid_to_string.h b/security/selinux/include/initial_sid_to_string.h
index a59b64e3fd02..4f93f697f71c 100644
--- a/security/selinux/include/initial_sid_to_string.h
+++ b/security/selinux/include/initial_sid_to_string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* This file is automatically generated.  Do not edit. */
 static const char *initial_sid_to_string[] =
 {
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 28dfb2f93e4d..02f0412d42f2 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Security server interface.
  *
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index 36a7ce9e11ff..1f173a7a4daa 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * SELinux support for the XFRM LSM hooks
  *
diff --git a/security/selinux/ss/constraint.h b/security/selinux/ss/constraint.h
index 33ae2aec4f36..4e563be9ef5f 100644
--- a/security/selinux/ss/constraint.h
+++ b/security/selinux/ss/constraint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A constraint is a condition that must be satisfied in
  * order for one or more permissions to be granted.
diff --git a/security/selinux/ss/context.h b/security/selinux/ss/context.h
index a2c0f37c42ae..2260c44a568c 100644
--- a/security/selinux/ss/context.h
+++ b/security/selinux/ss/context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A security context is a set of security attributes
  * associated with each subject and object controlled
diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index fc28149a4f2e..b6a78b09235c 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of the extensible bitmap type.
  *
diff --git a/security/selinux/ss/ebitmap.h b/security/selinux/ss/ebitmap.h
index da1325dda550..edf4fa39c60a 100644
--- a/security/selinux/ss/ebitmap.h
+++ b/security/selinux/ss/ebitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * An extensible bitmap is a bitmap that supports an
  * arbitrary number of bits.  Extensible bitmaps are
diff --git a/security/selinux/ss/hashtab.c b/security/selinux/ss/hashtab.c
index 686c3917064c..6bd6dcd954fa 100644
--- a/security/selinux/ss/hashtab.c
+++ b/security/selinux/ss/hashtab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of the hash table type.
  *
diff --git a/security/selinux/ss/hashtab.h b/security/selinux/ss/hashtab.h
index 009fb5e06172..3e3e42bfd150 100644
--- a/security/selinux/ss/hashtab.h
+++ b/security/selinux/ss/hashtab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A hash table (hashtab) maintains associations between
  * key values and datum values.  The type of the key values
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index d9dc34f4fade..ad982ce8bfa4 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of the multi-level security (MLS) policy.
  *
diff --git a/security/selinux/ss/mls.h b/security/selinux/ss/mls.h
index 0f0a1d65b2ce..131d76266ea5 100644
--- a/security/selinux/ss/mls.h
+++ b/security/selinux/ss/mls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Multi-level security (MLS) policy operations.
  *
diff --git a/security/selinux/ss/mls_types.h b/security/selinux/ss/mls_types.h
index 47f3702cd596..068e0d7809db 100644
--- a/security/selinux/ss/mls_types.h
+++ b/security/selinux/ss/mls_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Type definitions for the multi-level security (MLS) policy.
  *
diff --git a/security/selinux/ss/services.h b/security/selinux/ss/services.h
index 3d9fa9556b4f..356bdd36cf6d 100644
--- a/security/selinux/ss/services.h
+++ b/security/selinux/ss/services.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Implementation of the security services.
  *
diff --git a/security/selinux/ss/sidtab.c b/security/selinux/ss/sidtab.c
index 6ae08efc5ae7..5be31b7af225 100644
--- a/security/selinux/ss/sidtab.c
+++ b/security/selinux/ss/sidtab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of the SID table type.
  *
diff --git a/security/selinux/ss/sidtab.h b/security/selinux/ss/sidtab.h
index de5d0ea583d2..a1a1d2617b6f 100644
--- a/security/selinux/ss/sidtab.h
+++ b/security/selinux/ss/sidtab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A security identifier table (sidtab) is a hash table
  * of security context structures indexed by SID value.
diff --git a/security/selinux/ss/symtab.c b/security/selinux/ss/symtab.c
index d1a6745849a7..dc2ce94165d3 100644
--- a/security/selinux/ss/symtab.c
+++ b/security/selinux/ss/symtab.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Implementation of the symbol table type.
  *
diff --git a/security/selinux/ss/symtab.h b/security/selinux/ss/symtab.h
index 0bc12d587d3a..d75fcafe7281 100644
--- a/security/selinux/ss/symtab.h
+++ b/security/selinux/ss/symtab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * A symbol table (symtab) maintains associations between symbol
  * strings and datum values.  The type of the datum values
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 319add31b4a4..14cc7940b36d 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1473,7 +1473,7 @@ static int smack_inode_removexattr(struct dentry *dentry, const char *name)
  * @inode: the object
  * @name: attribute name
  * @buffer: where to put the result
- * @alloc: unused
+ * @alloc: duplicate memory
  *
  * Returns the size of the attribute or an error code
  */
@@ -1486,43 +1486,38 @@ static int smack_inode_getsecurity(struct inode *inode,
 	struct super_block *sbp;
 	struct inode *ip = (struct inode *)inode;
 	struct smack_known *isp;
-	int ilen;
-	int rc = 0;
 
-	if (strcmp(name, XATTR_SMACK_SUFFIX) == 0) {
+	if (strcmp(name, XATTR_SMACK_SUFFIX) == 0)
 		isp = smk_of_inode(inode);
-		ilen = strlen(isp->smk_known);
-		*buffer = isp->smk_known;
-		return ilen;
-	}
-
-	/*
-	 * The rest of the Smack xattrs are only on sockets.
-	 */
-	sbp = ip->i_sb;
-	if (sbp->s_magic != SOCKFS_MAGIC)
-		return -EOPNOTSUPP;
+	else {
+		/*
+		 * The rest of the Smack xattrs are only on sockets.
+		 */
+		sbp = ip->i_sb;
+		if (sbp->s_magic != SOCKFS_MAGIC)
+			return -EOPNOTSUPP;
 
-	sock = SOCKET_I(ip);
-	if (sock == NULL || sock->sk == NULL)
-		return -EOPNOTSUPP;
+		sock = SOCKET_I(ip);
+		if (sock == NULL || sock->sk == NULL)
+			return -EOPNOTSUPP;
 
-	ssp = sock->sk->sk_security;
+		ssp = sock->sk->sk_security;
 
-	if (strcmp(name, XATTR_SMACK_IPIN) == 0)
-		isp = ssp->smk_in;
-	else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
-		isp = ssp->smk_out;
-	else
-		return -EOPNOTSUPP;
+		if (strcmp(name, XATTR_SMACK_IPIN) == 0)
+			isp = ssp->smk_in;
+		else if (strcmp(name, XATTR_SMACK_IPOUT) == 0)
+			isp = ssp->smk_out;
+		else
+			return -EOPNOTSUPP;
+	}
 
-	ilen = strlen(isp->smk_known);
-	if (rc == 0) {
-		*buffer = isp->smk_known;
-		rc = ilen;
+	if (alloc) {
+		*buffer = kstrdup(isp->smk_known, GFP_KERNEL);
+		if (*buffer == NULL)
+			return -ENOMEM;
 	}
 
-	return rc;
+	return strlen(isp->smk_known);
 }
 
 
@@ -4605,6 +4600,82 @@ static int smack_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
 	return 0;
 }
 
+static int smack_inode_copy_up(struct dentry *dentry, struct cred **new)
+{
+
+	struct task_smack *tsp;
+	struct smack_known *skp;
+	struct inode_smack *isp;
+	struct cred *new_creds = *new;
+
+	if (new_creds == NULL) {
+		new_creds = prepare_creds();
+		if (new_creds == NULL)
+			return -ENOMEM;
+	}
+
+	tsp = new_creds->security;
+
+	/*
+	 * Get label from overlay inode and set it in create_sid
+	 */
+	isp = d_inode(dentry->d_parent)->i_security;
+	skp = isp->smk_inode;
+	tsp->smk_task = skp;
+	*new = new_creds;
+	return 0;
+}
+
+static int smack_inode_copy_up_xattr(const char *name)
+{
+	/*
+	 * Return 1 if this is the smack access Smack attribute.
+	 */
+	if (strcmp(name, XATTR_NAME_SMACK) == 0)
+		return 1;
+
+	return -EOPNOTSUPP;
+}
+
+static int smack_dentry_create_files_as(struct dentry *dentry, int mode,
+					struct qstr *name,
+					const struct cred *old,
+					struct cred *new)
+{
+	struct task_smack *otsp = old->security;
+	struct task_smack *ntsp = new->security;
+	struct inode_smack *isp;
+	int may;
+
+	/*
+	 * Use the process credential unless all of
+	 * the transmuting criteria are met
+	 */
+	ntsp->smk_task = otsp->smk_task;
+
+	/*
+	 * the attribute of the containing directory
+	 */
+	isp = d_inode(dentry->d_parent)->i_security;
+
+	if (isp->smk_flags & SMK_INODE_TRANSMUTE) {
+		rcu_read_lock();
+		may = smk_access_entry(otsp->smk_task->smk_known,
+				       isp->smk_inode->smk_known,
+				       &otsp->smk_task->smk_rules);
+		rcu_read_unlock();
+
+		/*
+		 * If the directory is transmuting and the rule
+		 * providing access is transmuting use the containing
+		 * directory label instead of the process label.
+		 */
+		if (may > 0 && (may & MAY_TRANSMUTE))
+			ntsp->smk_task = isp->smk_inode;
+	}
+	return 0;
+}
+
 static struct security_hook_list smack_hooks[] __lsm_ro_after_init = {
 	LSM_HOOK_INIT(ptrace_access_check, smack_ptrace_access_check),
 	LSM_HOOK_INIT(ptrace_traceme, smack_ptrace_traceme),
@@ -4740,6 +4811,9 @@ static struct security_hook_list smack_hooks[] __lsm_ro_after_init = {
 	LSM_HOOK_INIT(inode_notifysecctx, smack_inode_notifysecctx),
 	LSM_HOOK_INIT(inode_setsecctx, smack_inode_setsecctx),
 	LSM_HOOK_INIT(inode_getsecctx, smack_inode_getsecctx),
+	LSM_HOOK_INIT(inode_copy_up, smack_inode_copy_up),
+	LSM_HOOK_INIT(inode_copy_up_xattr, smack_inode_copy_up_xattr),
+	LSM_HOOK_INIT(dentry_create_files_as, smack_dentry_create_files_as),
 };
 
 
diff --git a/security/tomoyo/Makefile b/security/tomoyo/Makefile
index 65dbcb2fd850..b7c6a7ffc058 100644
--- a/security/tomoyo/Makefile
+++ b/security/tomoyo/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-y = audit.o common.o condition.o domain.o environ.o file.o gc.o group.o load_policy.o memory.o mount.o network.o realpath.o securityfs_if.o tomoyo.o util.o
 
 targets += builtin-policy.h
diff --git a/security/tomoyo/audit.c b/security/tomoyo/audit.c
index 3ffa4f5509d8..0f73fe30e37a 100644
--- a/security/tomoyo/audit.c
+++ b/security/tomoyo/audit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/audit.c
  *
@@ -156,7 +157,7 @@ static char *tomoyo_print_header(struct tomoyo_request_info *r)
 	if (!buffer)
 		return NULL;
 
-	tomoyo_convert_time(get_seconds(), &stamp);
+	tomoyo_convert_time(ktime_get_real_seconds(), &stamp);
 
 	pos = snprintf(buffer, tomoyo_buffer_len - 1,
 		       "#%04u/%02u/%02u %02u:%02u:%02u# profile=%u mode=%s "
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index e0fb75052550..25eed4b0b0e8 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/common.c
  *
@@ -2256,7 +2257,7 @@ static const char * const tomoyo_memory_headers[TOMOYO_MAX_MEMORY_STAT] = {
 /* Timestamp counter for last updated. */
 static unsigned int tomoyo_stat_updated[TOMOYO_MAX_POLICY_STAT];
 /* Counter for number of updates. */
-static unsigned int tomoyo_stat_modified[TOMOYO_MAX_POLICY_STAT];
+static time64_t tomoyo_stat_modified[TOMOYO_MAX_POLICY_STAT];
 
 /**
  * tomoyo_update_stat - Update statistic counters.
@@ -2271,7 +2272,7 @@ void tomoyo_update_stat(const u8 index)
 	 * I don't use atomic operations because race condition is not fatal.
 	 */
 	tomoyo_stat_updated[index]++;
-	tomoyo_stat_modified[index] = get_seconds();
+	tomoyo_stat_modified[index] = ktime_get_real_seconds();
 }
 
 /**
diff --git a/security/tomoyo/common.h b/security/tomoyo/common.h
index 361e7a284699..7adccdd8e36d 100644
--- a/security/tomoyo/common.h
+++ b/security/tomoyo/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * security/tomoyo/common.h
  *
@@ -1036,7 +1037,7 @@ void tomoyo_check_acl(struct tomoyo_request_info *r,
 		      bool (*check_entry) (struct tomoyo_request_info *,
 					   const struct tomoyo_acl_info *));
 void tomoyo_check_profile(void);
-void tomoyo_convert_time(time_t time, struct tomoyo_time *stamp);
+void tomoyo_convert_time(time64_t time, struct tomoyo_time *stamp);
 void tomoyo_del_condition(struct list_head *element);
 void tomoyo_fill_path_info(struct tomoyo_path_info *ptr);
 void tomoyo_get_attributes(struct tomoyo_obj_info *obj);
diff --git a/security/tomoyo/condition.c b/security/tomoyo/condition.c
index 6c4528d4b48f..8d0e1b9c9c57 100644
--- a/security/tomoyo/condition.c
+++ b/security/tomoyo/condition.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/condition.c
  *
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 00d223e9fb37..f6758dad981f 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/domain.c
  *
diff --git a/security/tomoyo/environ.c b/security/tomoyo/environ.c
index ad4c6e18a437..7f0a471f19b2 100644
--- a/security/tomoyo/environ.c
+++ b/security/tomoyo/environ.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/environ.c
  *
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 223f21ffa632..2a374b4da8f5 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/file.c
  *
diff --git a/security/tomoyo/gc.c b/security/tomoyo/gc.c
index 540bc29e1b5a..e22bea811c57 100644
--- a/security/tomoyo/gc.c
+++ b/security/tomoyo/gc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/gc.c
  *
diff --git a/security/tomoyo/group.c b/security/tomoyo/group.c
index 944ad77d8fba..21b0cc3a7e1a 100644
--- a/security/tomoyo/group.c
+++ b/security/tomoyo/group.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/group.c
  *
diff --git a/security/tomoyo/load_policy.c b/security/tomoyo/load_policy.c
index 078fac0bb4c5..81b951652051 100644
--- a/security/tomoyo/load_policy.c
+++ b/security/tomoyo/load_policy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/load_policy.c
  *
diff --git a/security/tomoyo/memory.c b/security/tomoyo/memory.c
index 1598b559ac42..12477e0b0a11 100644
--- a/security/tomoyo/memory.c
+++ b/security/tomoyo/memory.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/memory.c
  *
diff --git a/security/tomoyo/mount.c b/security/tomoyo/mount.c
index 14b53fb2a0cf..807fd91dbb54 100644
--- a/security/tomoyo/mount.c
+++ b/security/tomoyo/mount.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/mount.c
  *
diff --git a/security/tomoyo/network.c b/security/tomoyo/network.c
index 6c02ac478247..cd6932e5225c 100644
--- a/security/tomoyo/network.c
+++ b/security/tomoyo/network.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/network.c
  *
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index a97b275ca3af..6ff8c21e4fff 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/realpath.c
  *
diff --git a/security/tomoyo/securityfs_if.c b/security/tomoyo/securityfs_if.c
index 06ab41b1ff28..49393c2a3f8b 100644
--- a/security/tomoyo/securityfs_if.c
+++ b/security/tomoyo/securityfs_if.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/securityfs_if.c
  *
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index d25b705360e0..213b8c593668 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/tomoyo.c
  *
diff --git a/security/tomoyo/util.c b/security/tomoyo/util.c
index 848317fea704..d3d9d9f1edb0 100644
--- a/security/tomoyo/util.c
+++ b/security/tomoyo/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * security/tomoyo/util.c
  *
@@ -86,38 +87,17 @@ const u8 tomoyo_index2category[TOMOYO_MAX_MAC_INDEX] = {
  * @stamp: Pointer to "struct tomoyo_time".
  *
  * Returns nothing.
- *
- * This function does not handle Y2038 problem.
  */
-void tomoyo_convert_time(time_t time, struct tomoyo_time *stamp)
+void tomoyo_convert_time(time64_t time64, struct tomoyo_time *stamp)
 {
-	static const u16 tomoyo_eom[2][12] = {
-		{ 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
-		{ 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
-	};
-	u16 y;
-	u8 m;
-	bool r;
-	stamp->sec = time % 60;
-	time /= 60;
-	stamp->min = time % 60;
-	time /= 60;
-	stamp->hour = time % 24;
-	time /= 24;
-	for (y = 1970; ; y++) {
-		const unsigned short days = (y & 3) ? 365 : 366;
-		if (time < days)
-			break;
-		time -= days;
-	}
-	r = (y & 3) == 0;
-	for (m = 0; m < 11 && time >= tomoyo_eom[r][m]; m++)
-		;
-	if (m)
-		time -= tomoyo_eom[r][m - 1];
-	stamp->year = y;
-	stamp->month = ++m;
-	stamp->day = ++time;
+	struct tm tm;
+	time64_to_tm(time64, 0, &tm);
+	stamp->sec = tm.tm_sec;
+	stamp->min = tm.tm_min;
+	stamp->hour = tm.tm_hour;
+	stamp->day = tm.tm_mday;
+	stamp->month = tm.tm_mon + 1;
+	stamp->year = tm.tm_year + 1900;
 }
 
 /**
diff --git a/sound/Makefile b/sound/Makefile
index 6de45d2c32f7..f2d1d093bcdc 100644
--- a/sound/Makefile
+++ b/sound/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux sound card driver
 #
 
diff --git a/sound/aoa/codecs/Makefile b/sound/aoa/codecs/Makefile
index c3ee77fc4b2d..95f4c3849d55 100644
--- a/sound/aoa/codecs/Makefile
+++ b/sound/aoa/codecs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-aoa-codec-onyx-objs := onyx.o
 snd-aoa-codec-tas-objs := tas.o
 snd-aoa-codec-toonie-objs := toonie.o
diff --git a/sound/aoa/codecs/tas-basstreble.h b/sound/aoa/codecs/tas-basstreble.h
index 69b61136fd54..770935af66af 100644
--- a/sound/aoa/codecs/tas-basstreble.h
+++ b/sound/aoa/codecs/tas-basstreble.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This file is only included exactly once!
  *
diff --git a/sound/aoa/codecs/tas-gain-table.h b/sound/aoa/codecs/tas-gain-table.h
index 4cfa6757715e..77b8e7dc55fd 100644
--- a/sound/aoa/codecs/tas-gain-table.h
+++ b/sound/aoa/codecs/tas-gain-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  This is the program used to generate below table.
 
diff --git a/sound/aoa/core/Makefile b/sound/aoa/core/Makefile
index a1596e88c718..056d69683b1e 100644
--- a/sound/aoa/core/Makefile
+++ b/sound/aoa/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SND_AOA) += snd-aoa.o
 snd-aoa-objs := core.o \
 		alsa.o \
diff --git a/sound/aoa/soundbus/sysfs.c b/sound/aoa/soundbus/sysfs.c
index 5b2d51d99768..81da020bddef 100644
--- a/sound/aoa/soundbus/sysfs.c
+++ b/sound/aoa/soundbus/sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/stat.h>
 /* FIX UP */
diff --git a/sound/arm/Makefile b/sound/arm/Makefile
index 8c0c851d4641..e10d5b169565 100644
--- a/sound/arm/Makefile
+++ b/sound/arm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 #
diff --git a/sound/core/Makefile b/sound/core/Makefile
index e2066e2ef9f8..ee4a4a6b99ba 100644
--- a/sound/core/Makefile
+++ b/sound/core/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 1999,2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index fec1dfdb14ad..4490a699030b 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -948,14 +948,13 @@ static const struct file_operations snd_compr_file_ops = {
 static int snd_compress_dev_register(struct snd_device *device)
 {
 	int ret = -EINVAL;
-	char str[16];
 	struct snd_compr *compr;
 
 	if (snd_BUG_ON(!device || !device->device_data))
 		return -EBADFD;
 	compr = device->device_data;
 
-	pr_debug("reg %s for device %s, direction %d\n", str, compr->name,
+	pr_debug("reg device %s, direction %d\n", compr->name,
 			compr->direction);
 	/* register compressed device */
 	ret = snd_register_device(SNDRV_DEVICE_TYPE_COMPRESS,
diff --git a/sound/core/hrtimer.c b/sound/core/hrtimer.c
index 1ac0c423903e..6e47b823bcaa 100644
--- a/sound/core/hrtimer.c
+++ b/sound/core/hrtimer.c
@@ -159,6 +159,7 @@ static int __init snd_hrtimer_init(void)
 	timer->hw = hrtimer_hw;
 	timer->hw.resolution = resolution;
 	timer->hw.ticks = NANO_SEC / resolution;
+	timer->max_instances = 100; /* lower the limit */
 
 	err = snd_timer_global_register(timer);
 	if (err < 0) {
diff --git a/sound/core/oss/Makefile b/sound/core/oss/Makefile
index 10a79453245f..ae25edcc3b42 100644
--- a/sound/core/oss/Makefile
+++ b/sound/core/oss/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
index 3a1cc7b97e46..b719d0bd833e 100644
--- a/sound/core/pcm_compat.c
+++ b/sound/core/pcm_compat.c
@@ -547,6 +547,7 @@ struct snd_pcm_mmap_status_x32 {
 	u32 pad2; /* alignment */
 	struct timespec tstamp;
 	s32 suspended_state;
+	s32 pad3;
 	struct timespec audio_tstamp;
 } __packed;
 
diff --git a/sound/core/pcm_param_trace.h b/sound/core/pcm_param_trace.h
index 86c8d658a25c..08abba3133ab 100644
--- a/sound/core/pcm_param_trace.h
+++ b/sound/core/pcm_param_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM snd_pcm
 
diff --git a/sound/core/pcm_trace.h b/sound/core/pcm_trace.h
index 3ddec1b8ae46..f18da2050772 100644
--- a/sound/core/pcm_trace.h
+++ b/sound/core/pcm_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM snd_pcm
 #define TRACE_INCLUDE_FILE pcm_trace
diff --git a/sound/core/seq/Makefile b/sound/core/seq/Makefile
index 68fd367ac39c..3a2177a7e50c 100644
--- a/sound/core/seq/Makefile
+++ b/sound/core/seq/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 1999 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
index aaff9ee32695..b30b2139e3f0 100644
--- a/sound/core/seq/oss/seq_oss_midi.c
+++ b/sound/core/seq/oss/seq_oss_midi.c
@@ -612,9 +612,7 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq
 	if (!dp->timer->running)
 		len = snd_seq_oss_timer_start(dp->timer);
 	if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {
-		if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) == SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
-			snd_seq_oss_readq_puts(dp->readq, mdev->seq_device,
-					       ev->data.ext.ptr, ev->data.ext.len);
+		snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev);
 	} else {
 		len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev);
 		if (len > 0)
diff --git a/sound/core/seq/oss/seq_oss_readq.c b/sound/core/seq/oss/seq_oss_readq.c
index 046cb586fb2f..06b21226b4e7 100644
--- a/sound/core/seq/oss/seq_oss_readq.c
+++ b/sound/core/seq/oss/seq_oss_readq.c
@@ -118,6 +118,35 @@ snd_seq_oss_readq_puts(struct seq_oss_readq *q, int dev, unsigned char *data, in
 }
 
 /*
+ * put MIDI sysex bytes; the event buffer may be chained, thus it has
+ * to be expanded via snd_seq_dump_var_event().
+ */
+struct readq_sysex_ctx {
+	struct seq_oss_readq *readq;
+	int dev;
+};
+
+static int readq_dump_sysex(void *ptr, void *buf, int count)
+{
+	struct readq_sysex_ctx *ctx = ptr;
+
+	return snd_seq_oss_readq_puts(ctx->readq, ctx->dev, buf, count);
+}
+
+int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev,
+			    struct snd_seq_event *ev)
+{
+	struct readq_sysex_ctx ctx = {
+		.readq = q,
+		.dev = dev
+	};
+
+	if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
+		return 0;
+	return snd_seq_dump_var_event(ev, readq_dump_sysex, &ctx);
+}
+
+/*
  * copy an event to input queue:
  * return zero if enqueued
  */
diff --git a/sound/core/seq/oss/seq_oss_readq.h b/sound/core/seq/oss/seq_oss_readq.h
index f1463f1f449e..8d033ca2d23f 100644
--- a/sound/core/seq/oss/seq_oss_readq.h
+++ b/sound/core/seq/oss/seq_oss_readq.h
@@ -44,6 +44,8 @@ void snd_seq_oss_readq_delete(struct seq_oss_readq *q);
 void snd_seq_oss_readq_clear(struct seq_oss_readq *readq);
 unsigned int snd_seq_oss_readq_poll(struct seq_oss_readq *readq, struct file *file, poll_table *wait);
 int snd_seq_oss_readq_puts(struct seq_oss_readq *readq, int dev, unsigned char *data, int len);
+int snd_seq_oss_readq_sysex(struct seq_oss_readq *q, int dev,
+			    struct snd_seq_event *ev);
 int snd_seq_oss_readq_put_event(struct seq_oss_readq *readq, union evrec *ev);
 int snd_seq_oss_readq_put_timestamp(struct seq_oss_readq *readq, unsigned long curt, int seq_mode);
 int snd_seq_oss_readq_pick(struct seq_oss_readq *q, union evrec *rec);
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index ea2d0ae85bd3..d10c780dfd54 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -663,7 +663,7 @@ static int deliver_to_subscribers(struct snd_seq_client *client,
 	if (atomic)
 		read_lock(&grp->list_lock);
 	else
-		down_read(&grp->list_mutex);
+		down_read_nested(&grp->list_mutex, hop);
 	list_for_each_entry(subs, &grp->list_head, src_list) {
 		/* both ports ready? */
 		if (atomic_read(&subs->ref_count) != 2)
@@ -1259,6 +1259,7 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg)
 	struct snd_seq_port_info *info = arg;
 	struct snd_seq_client_port *port;
 	struct snd_seq_port_callback *callback;
+	int port_idx;
 
 	/* it is not allowed to create the port for an another client */
 	if (info->addr.client != client->number)
@@ -1269,7 +1270,9 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg)
 		return -ENOMEM;
 
 	if (client->type == USER_CLIENT && info->kernel) {
-		snd_seq_delete_port(client, port->addr.port);
+		port_idx = port->addr.port;
+		snd_seq_port_unlock(port);
+		snd_seq_delete_port(client, port_idx);
 		return -EINVAL;
 	}
 	if (client->type == KERNEL_CLIENT) {
@@ -1290,6 +1293,7 @@ static int snd_seq_ioctl_create_port(struct snd_seq_client *client, void *arg)
 
 	snd_seq_set_port_info(port, info);
 	snd_seq_system_client_ev_port_start(port->addr.client, port->addr.port);
+	snd_seq_port_unlock(port);
 
 	return 0;
 }
diff --git a/sound/core/seq/seq_lock.c b/sound/core/seq/seq_lock.c
index 0ff7926a5a69..cda64b489e42 100644
--- a/sound/core/seq/seq_lock.c
+++ b/sound/core/seq/seq_lock.c
@@ -23,8 +23,6 @@
 #include <sound/core.h>
 #include "seq_lock.h"
 
-#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
-
 /* wait until all locks are released */
 void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
 {
@@ -41,5 +39,3 @@ void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int line)
 	}
 }
 EXPORT_SYMBOL(snd_use_lock_sync_helper);
-
-#endif
diff --git a/sound/core/seq/seq_lock.h b/sound/core/seq/seq_lock.h
index 54044bc2c9ef..a973860ebcd0 100644
--- a/sound/core/seq/seq_lock.h
+++ b/sound/core/seq/seq_lock.h
@@ -1,10 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SND_SEQ_LOCK_H
 #define __SND_SEQ_LOCK_H
 
 #include <linux/sched.h>
 
-#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
-
 typedef atomic_t snd_use_lock_t;
 
 /* initialize lock */
@@ -20,14 +19,4 @@ typedef atomic_t snd_use_lock_t;
 void snd_use_lock_sync_helper(snd_use_lock_t *lock, const char *file, int line);
 #define snd_use_lock_sync(lockp) snd_use_lock_sync_helper(lockp, __BASE_FILE__, __LINE__)
 
-#else /* SMP || CONFIG_SND_DEBUG */
-
-typedef spinlock_t snd_use_lock_t;	/* dummy */
-#define snd_use_lock_init(lockp) /**/
-#define snd_use_lock_use(lockp) /**/
-#define snd_use_lock_free(lockp) /**/
-#define snd_use_lock_sync(lockp) /**/
-
-#endif /* SMP || CONFIG_SND_DEBUG */
-
 #endif /* __SND_SEQ_LOCK_H */
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index 0a7020c82bfc..d21ece9f8d73 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -122,7 +122,9 @@ static void port_subs_info_init(struct snd_seq_port_subs_info *grp)
 }
 
 
-/* create a port, port number is returned (-1 on failure) */
+/* create a port, port number is returned (-1 on failure);
+ * the caller needs to unref the port via snd_seq_port_unlock() appropriately
+ */
 struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
 						int port)
 {
@@ -151,6 +153,7 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
 	snd_use_lock_init(&new_port->use_lock);
 	port_subs_info_init(&new_port->c_src);
 	port_subs_info_init(&new_port->c_dest);
+	snd_use_lock_use(&new_port->use_lock);
 
 	num = port >= 0 ? port : 0;
 	mutex_lock(&client->ports_mutex);
@@ -165,9 +168,9 @@ struct snd_seq_client_port *snd_seq_create_port(struct snd_seq_client *client,
 	list_add_tail(&new_port->list, &p->list);
 	client->num_ports++;
 	new_port->addr.port = num;	/* store the port number in the port */
+	sprintf(new_port->name, "port-%d", num);
 	write_unlock_irqrestore(&client->ports_lock, flags);
 	mutex_unlock(&client->ports_mutex);
-	sprintf(new_port->name, "port-%d", num);
 
 	return new_port;
 }
diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c
index 8d93a4021c78..f48a4cd24ffc 100644
--- a/sound/core/seq/seq_virmidi.c
+++ b/sound/core/seq/seq_virmidi.c
@@ -77,13 +77,17 @@ static void snd_virmidi_init_event(struct snd_virmidi *vmidi,
  * decode input event and put to read buffer of each opened file
  */
 static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
-					 struct snd_seq_event *ev)
+					 struct snd_seq_event *ev,
+					 bool atomic)
 {
 	struct snd_virmidi *vmidi;
 	unsigned char msg[4];
 	int len;
 
-	read_lock(&rdev->filelist_lock);
+	if (atomic)
+		read_lock(&rdev->filelist_lock);
+	else
+		down_read(&rdev->filelist_sem);
 	list_for_each_entry(vmidi, &rdev->filelist, list) {
 		if (!vmidi->trigger)
 			continue;
@@ -97,7 +101,10 @@ static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
 				snd_rawmidi_receive(vmidi->substream, msg, len);
 		}
 	}
-	read_unlock(&rdev->filelist_lock);
+	if (atomic)
+		read_unlock(&rdev->filelist_lock);
+	else
+		up_read(&rdev->filelist_sem);
 
 	return 0;
 }
@@ -115,7 +122,7 @@ int snd_virmidi_receive(struct snd_rawmidi *rmidi, struct snd_seq_event *ev)
 	struct snd_virmidi_dev *rdev;
 
 	rdev = rmidi->private_data;
-	return snd_virmidi_dev_receive_event(rdev, ev);
+	return snd_virmidi_dev_receive_event(rdev, ev, true);
 }
 #endif  /*  0  */
 
@@ -130,7 +137,7 @@ static int snd_virmidi_event_input(struct snd_seq_event *ev, int direct,
 	rdev = private_data;
 	if (!(rdev->flags & SNDRV_VIRMIDI_USE))
 		return 0; /* ignored */
-	return snd_virmidi_dev_receive_event(rdev, ev);
+	return snd_virmidi_dev_receive_event(rdev, ev, atomic);
 }
 
 /*
@@ -209,7 +216,6 @@ static int snd_virmidi_input_open(struct snd_rawmidi_substream *substream)
 	struct snd_virmidi_dev *rdev = substream->rmidi->private_data;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
 	struct snd_virmidi *vmidi;
-	unsigned long flags;
 
 	vmidi = kzalloc(sizeof(*vmidi), GFP_KERNEL);
 	if (vmidi == NULL)
@@ -223,9 +229,11 @@ static int snd_virmidi_input_open(struct snd_rawmidi_substream *substream)
 	vmidi->client = rdev->client;
 	vmidi->port = rdev->port;	
 	runtime->private_data = vmidi;
-	write_lock_irqsave(&rdev->filelist_lock, flags);
+	down_write(&rdev->filelist_sem);
+	write_lock_irq(&rdev->filelist_lock);
 	list_add_tail(&vmidi->list, &rdev->filelist);
-	write_unlock_irqrestore(&rdev->filelist_lock, flags);
+	write_unlock_irq(&rdev->filelist_lock);
+	up_write(&rdev->filelist_sem);
 	vmidi->rdev = rdev;
 	return 0;
 }
@@ -264,9 +272,11 @@ static int snd_virmidi_input_close(struct snd_rawmidi_substream *substream)
 	struct snd_virmidi_dev *rdev = substream->rmidi->private_data;
 	struct snd_virmidi *vmidi = substream->runtime->private_data;
 
+	down_write(&rdev->filelist_sem);
 	write_lock_irq(&rdev->filelist_lock);
 	list_del(&vmidi->list);
 	write_unlock_irq(&rdev->filelist_lock);
+	up_write(&rdev->filelist_sem);
 	snd_midi_event_free(vmidi->parser);
 	substream->runtime->private_data = NULL;
 	kfree(vmidi);
@@ -520,6 +530,7 @@ int snd_virmidi_new(struct snd_card *card, int device, struct snd_rawmidi **rrmi
 	rdev->rmidi = rmidi;
 	rdev->device = device;
 	rdev->client = -1;
+	init_rwsem(&rdev->filelist_sem);
 	rwlock_init(&rdev->filelist_lock);
 	INIT_LIST_HEAD(&rdev->filelist);
 	rdev->seq_mode = SNDRV_VIRMIDI_SEQ_DISPATCH;
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 6cdd04a45962..15e82a656d96 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -180,7 +180,7 @@ static void snd_timer_request(struct snd_timer_id *tid)
  *
  * call this with register_mutex down.
  */
-static void snd_timer_check_slave(struct snd_timer_instance *slave)
+static int snd_timer_check_slave(struct snd_timer_instance *slave)
 {
 	struct snd_timer *timer;
 	struct snd_timer_instance *master;
@@ -190,16 +190,21 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
 		list_for_each_entry(master, &timer->open_list_head, open_list) {
 			if (slave->slave_class == master->slave_class &&
 			    slave->slave_id == master->slave_id) {
+				if (master->timer->num_instances >=
+				    master->timer->max_instances)
+					return -EBUSY;
 				list_move_tail(&slave->open_list,
 					       &master->slave_list_head);
+				master->timer->num_instances++;
 				spin_lock_irq(&slave_active_lock);
 				slave->master = master;
 				slave->timer = master->timer;
 				spin_unlock_irq(&slave_active_lock);
-				return;
+				return 0;
 			}
 		}
 	}
+	return 0;
 }
 
 /*
@@ -208,7 +213,7 @@ static void snd_timer_check_slave(struct snd_timer_instance *slave)
  *
  * call this with register_mutex down.
  */
-static void snd_timer_check_master(struct snd_timer_instance *master)
+static int snd_timer_check_master(struct snd_timer_instance *master)
 {
 	struct snd_timer_instance *slave, *tmp;
 
@@ -216,7 +221,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
 	list_for_each_entry_safe(slave, tmp, &snd_timer_slave_list, open_list) {
 		if (slave->slave_class == master->slave_class &&
 		    slave->slave_id == master->slave_id) {
+			if (master->timer->num_instances >=
+			    master->timer->max_instances)
+				return -EBUSY;
 			list_move_tail(&slave->open_list, &master->slave_list_head);
+			master->timer->num_instances++;
 			spin_lock_irq(&slave_active_lock);
 			spin_lock(&master->timer->lock);
 			slave->master = master;
@@ -228,8 +237,11 @@ static void snd_timer_check_master(struct snd_timer_instance *master)
 			spin_unlock_irq(&slave_active_lock);
 		}
 	}
+	return 0;
 }
 
+static int snd_timer_close_locked(struct snd_timer_instance *timeri);
+
 /*
  * open a timer instance
  * when opening a master, the slave id must be here given.
@@ -240,6 +252,7 @@ int snd_timer_open(struct snd_timer_instance **ti,
 {
 	struct snd_timer *timer;
 	struct snd_timer_instance *timeri = NULL;
+	int err;
 
 	if (tid->dev_class == SNDRV_TIMER_CLASS_SLAVE) {
 		/* open a slave instance */
@@ -259,10 +272,14 @@ int snd_timer_open(struct snd_timer_instance **ti,
 		timeri->slave_id = tid->device;
 		timeri->flags |= SNDRV_TIMER_IFLG_SLAVE;
 		list_add_tail(&timeri->open_list, &snd_timer_slave_list);
-		snd_timer_check_slave(timeri);
+		err = snd_timer_check_slave(timeri);
+		if (err < 0) {
+			snd_timer_close_locked(timeri);
+			timeri = NULL;
+		}
 		mutex_unlock(&register_mutex);
 		*ti = timeri;
-		return 0;
+		return err;
 	}
 
 	/* open a master instance */
@@ -288,6 +305,10 @@ int snd_timer_open(struct snd_timer_instance **ti,
 			return -EBUSY;
 		}
 	}
+	if (timer->num_instances >= timer->max_instances) {
+		mutex_unlock(&register_mutex);
+		return -EBUSY;
+	}
 	timeri = snd_timer_instance_new(owner, timer);
 	if (!timeri) {
 		mutex_unlock(&register_mutex);
@@ -314,25 +335,27 @@ int snd_timer_open(struct snd_timer_instance **ti,
 	}
 
 	list_add_tail(&timeri->open_list, &timer->open_list_head);
-	snd_timer_check_master(timeri);
+	timer->num_instances++;
+	err = snd_timer_check_master(timeri);
+	if (err < 0) {
+		snd_timer_close_locked(timeri);
+		timeri = NULL;
+	}
 	mutex_unlock(&register_mutex);
 	*ti = timeri;
-	return 0;
+	return err;
 }
 EXPORT_SYMBOL(snd_timer_open);
 
 /*
  * close a timer instance
+ * call this with register_mutex down.
  */
-int snd_timer_close(struct snd_timer_instance *timeri)
+static int snd_timer_close_locked(struct snd_timer_instance *timeri)
 {
 	struct snd_timer *timer = NULL;
 	struct snd_timer_instance *slave, *tmp;
 
-	if (snd_BUG_ON(!timeri))
-		return -ENXIO;
-
-	mutex_lock(&register_mutex);
 	list_del(&timeri->open_list);
 
 	/* force to stop the timer */
@@ -340,6 +363,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
 
 	timer = timeri->timer;
 	if (timer) {
+		timer->num_instances--;
 		/* wait, until the active callback is finished */
 		spin_lock_irq(&timer->lock);
 		while (timeri->flags & SNDRV_TIMER_IFLG_CALLBACK) {
@@ -355,6 +379,7 @@ int snd_timer_close(struct snd_timer_instance *timeri)
 		list_for_each_entry_safe(slave, tmp, &timeri->slave_list_head,
 					 open_list) {
 			list_move_tail(&slave->open_list, &snd_timer_slave_list);
+			timer->num_instances--;
 			slave->master = NULL;
 			slave->timer = NULL;
 			list_del_init(&slave->ack_list);
@@ -382,9 +407,24 @@ int snd_timer_close(struct snd_timer_instance *timeri)
 		module_put(timer->module);
 	}
 
-	mutex_unlock(&register_mutex);
 	return 0;
 }
+
+/*
+ * close a timer instance
+ */
+int snd_timer_close(struct snd_timer_instance *timeri)
+{
+	int err;
+
+	if (snd_BUG_ON(!timeri))
+		return -ENXIO;
+
+	mutex_lock(&register_mutex);
+	err = snd_timer_close_locked(timeri);
+	mutex_unlock(&register_mutex);
+	return err;
+}
 EXPORT_SYMBOL(snd_timer_close);
 
 unsigned long snd_timer_resolution(struct snd_timer_instance *timeri)
@@ -856,6 +896,7 @@ int snd_timer_new(struct snd_card *card, char *id, struct snd_timer_id *tid,
 	spin_lock_init(&timer->lock);
 	tasklet_init(&timer->task_queue, snd_timer_tasklet,
 		     (unsigned long)timer);
+	timer->max_instances = 1000; /* default limit per timer */
 	if (card != NULL) {
 		timer->module = card->module;
 		err = snd_device_new(card, SNDRV_DEV_TIMER, timer, &ops);
diff --git a/sound/core/timer_compat.c b/sound/core/timer_compat.c
index 6a437eb66115..59127b6ef39e 100644
--- a/sound/core/timer_compat.c
+++ b/sound/core/timer_compat.c
@@ -133,7 +133,8 @@ enum {
 #endif /* CONFIG_X86_X32 */
 };
 
-static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg)
+static long __snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
+					  unsigned long arg)
 {
 	void __user *argp = compat_ptr(arg);
 
@@ -153,7 +154,7 @@ static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, uns
 	case SNDRV_TIMER_IOCTL_PAUSE:
 	case SNDRV_TIMER_IOCTL_PAUSE_OLD:
 	case SNDRV_TIMER_IOCTL_NEXT_DEVICE:
-		return snd_timer_user_ioctl(file, cmd, (unsigned long)argp);
+		return __snd_timer_user_ioctl(file, cmd, (unsigned long)argp);
 	case SNDRV_TIMER_IOCTL_GPARAMS32:
 		return snd_timer_user_gparams_compat(file, argp);
 	case SNDRV_TIMER_IOCTL_INFO32:
@@ -167,3 +168,15 @@ static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd, uns
 	}
 	return -ENOIOCTLCMD;
 }
+
+static long snd_timer_user_ioctl_compat(struct file *file, unsigned int cmd,
+					unsigned long arg)
+{
+	struct snd_timer_user *tu = file->private_data;
+	long ret;
+
+	mutex_lock(&tu->ioctl_lock);
+	ret = __snd_timer_user_ioctl_compat(file, cmd, arg);
+	mutex_unlock(&tu->ioctl_lock);
+	return ret;
+}
diff --git a/sound/core/vmaster.c b/sound/core/vmaster.c
index 6c58e6f73a01..e43af18d4383 100644
--- a/sound/core/vmaster.c
+++ b/sound/core/vmaster.c
@@ -484,3 +484,34 @@ void snd_ctl_sync_vmaster(struct snd_kcontrol *kcontrol, bool hook_only)
 		master->hook(master->hook_private_data, master->val);
 }
 EXPORT_SYMBOL_GPL(snd_ctl_sync_vmaster);
+
+/**
+ * snd_ctl_apply_vmaster_slaves - Apply function to each vmaster slave
+ * @kctl: vmaster kctl element
+ * @func: function to apply
+ * @arg: optional function argument
+ *
+ * Apply the function @func to each slave kctl of the given vmaster kctl.
+ * Returns 0 if successful, or a negative error code.
+ */
+int snd_ctl_apply_vmaster_slaves(struct snd_kcontrol *kctl,
+				 int (*func)(struct snd_kcontrol *, void *),
+				 void *arg)
+{
+	struct link_master *master;
+	struct link_slave *slave;
+	int err;
+
+	master = snd_kcontrol_chip(kctl);
+	err = master_init(master);
+	if (err < 0)
+		return err;
+	list_for_each_entry(slave, &master->slaves, list) {
+		err = func(&slave->slave, arg);
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_ctl_apply_vmaster_slaves);
diff --git a/sound/drivers/Makefile b/sound/drivers/Makefile
index 1a8440c8b138..615558a281c8 100644
--- a/sound/drivers/Makefile
+++ b/sound/drivers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/drivers/opl3/Makefile b/sound/drivers/opl3/Makefile
index d72b1e7b51c4..83bca9f1fbdf 100644
--- a/sound/drivers/opl3/Makefile
+++ b/sound/drivers/opl3/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/drivers/opl4/Makefile b/sound/drivers/opl4/Makefile
index c8eaa433d71a..6e86a4092b4c 100644
--- a/sound/drivers/opl4/Makefile
+++ b/sound/drivers/opl4/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/drivers/pcsp/pcsp.h b/sound/drivers/pcsp/pcsp.h
index fc7a2dc410a1..036ad3c99a43 100644
--- a/sound/drivers/pcsp/pcsp.h
+++ b/sound/drivers/pcsp/pcsp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PC-Speaker driver for Linux
  *
diff --git a/sound/drivers/pcsp/pcsp_input.h b/sound/drivers/pcsp/pcsp_input.h
index d692749b8c9b..e80079b38a56 100644
--- a/sound/drivers/pcsp/pcsp_input.h
+++ b/sound/drivers/pcsp/pcsp_input.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * PC-Speaker driver for Linux
  *
diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index 2f5a35f38ce1..8f0f05bbc081 100644
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PC-Speaker driver for Linux
  *
diff --git a/sound/drivers/pcsp/pcsp_mixer.c b/sound/drivers/pcsp/pcsp_mixer.c
index f1e1defc09b1..be2990451bcd 100644
--- a/sound/drivers/pcsp/pcsp_mixer.c
+++ b/sound/drivers/pcsp/pcsp_mixer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * PC-Speaker driver for Linux
  *
diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile
index 1b98fa3fa3d4..44a7b510b75b 100644
--- a/sound/firewire/Makefile
+++ b/sound/firewire/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # To find a header included by define_trace.h.
 CFLAGS_amdtp-stream.o	:= -I$(src)
 
diff --git a/sound/firewire/amdtp-am824.c b/sound/firewire/amdtp-am824.c
index 23ccddb20de1..4210e5c6262e 100644
--- a/sound/firewire/amdtp-am824.c
+++ b/sound/firewire/amdtp-am824.c
@@ -247,7 +247,7 @@ void amdtp_am824_midi_trigger(struct amdtp_stream *s, unsigned int port,
 	struct amdtp_am824 *p = s->protocol;
 
 	if (port < p->midi_ports)
-		ACCESS_ONCE(p->midi[port]) = midi;
+		WRITE_ONCE(p->midi[port], midi);
 }
 EXPORT_SYMBOL_GPL(amdtp_am824_midi_trigger);
 
@@ -336,7 +336,7 @@ static unsigned int process_rx_data_blocks(struct amdtp_stream *s, __be32 *buffe
 					   unsigned int data_blocks, unsigned int *syt)
 {
 	struct amdtp_am824 *p = s->protocol;
-	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
+	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
 	unsigned int pcm_frames;
 
 	if (pcm) {
@@ -357,7 +357,7 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s, __be32 *buffe
 					   unsigned int data_blocks, unsigned int *syt)
 {
 	struct amdtp_am824 *p = s->protocol;
-	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
+	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
 	unsigned int pcm_frames;
 
 	if (pcm) {
diff --git a/sound/firewire/amdtp-am824.h b/sound/firewire/amdtp-am824.h
index b56e61fc997d..06d280783581 100644
--- a/sound/firewire/amdtp-am824.h
+++ b/sound/firewire/amdtp-am824.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED
 #define SOUND_FIREWIRE_AMDTP_AM824_H_INCLUDED
 
diff --git a/sound/firewire/amdtp-stream.c b/sound/firewire/amdtp-stream.c
index 3fc581a5ad62..4a1dc145327b 100644
--- a/sound/firewire/amdtp-stream.c
+++ b/sound/firewire/amdtp-stream.c
@@ -376,7 +376,7 @@ static void update_pcm_pointers(struct amdtp_stream *s,
 	ptr = s->pcm_buffer_pointer + frames;
 	if (ptr >= pcm->runtime->buffer_size)
 		ptr -= pcm->runtime->buffer_size;
-	ACCESS_ONCE(s->pcm_buffer_pointer) = ptr;
+	WRITE_ONCE(s->pcm_buffer_pointer, ptr);
 
 	s->pcm_period_pointer += frames;
 	if (s->pcm_period_pointer >= pcm->runtime->period_size) {
@@ -388,7 +388,7 @@ static void update_pcm_pointers(struct amdtp_stream *s,
 static void pcm_period_tasklet(unsigned long data)
 {
 	struct amdtp_stream *s = (void *)data;
-	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
+	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
 
 	if (pcm)
 		snd_pcm_period_elapsed(pcm);
@@ -453,7 +453,7 @@ static int handle_out_packet(struct amdtp_stream *s,
 		s->data_block_counter =
 				(s->data_block_counter + data_blocks) & 0xff;
 
-	buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) |
+	buffer[0] = cpu_to_be32(READ_ONCE(s->source_node_id_field) |
 				(s->data_block_quadlets << CIP_DBS_SHIFT) |
 				((s->sph << CIP_SPH_SHIFT) & CIP_SPH_MASK) |
 				s->data_block_counter);
@@ -472,7 +472,7 @@ static int handle_out_packet(struct amdtp_stream *s,
 	if (queue_out_packet(s, payload_length) < 0)
 		return -EIO;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm && pcm_frames > 0)
 		update_pcm_pointers(s, pcm, pcm_frames);
 
@@ -504,7 +504,7 @@ static int handle_out_packet_without_header(struct amdtp_stream *s,
 	if (queue_out_packet(s, payload_length) < 0)
 		return -EIO;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm && pcm_frames > 0)
 		update_pcm_pointers(s, pcm, pcm_frames);
 
@@ -621,7 +621,7 @@ end:
 	if (queue_in_packet(s) < 0)
 		return -EIO;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm && pcm_frames > 0)
 		update_pcm_pointers(s, pcm, pcm_frames);
 
@@ -649,7 +649,7 @@ static int handle_in_packet_without_header(struct amdtp_stream *s,
 	if (queue_in_packet(s) < 0)
 		return -EIO;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm && pcm_frames > 0)
 		update_pcm_pointers(s, pcm, pcm_frames);
 
@@ -947,7 +947,7 @@ unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s)
 	if (!in_interrupt() && amdtp_stream_running(s))
 		fw_iso_context_flush_completions(s->context);
 
-	return ACCESS_ONCE(s->pcm_buffer_pointer);
+	return READ_ONCE(s->pcm_buffer_pointer);
 }
 EXPORT_SYMBOL(amdtp_stream_pcm_pointer);
 
@@ -977,9 +977,8 @@ EXPORT_SYMBOL(amdtp_stream_pcm_ack);
 void amdtp_stream_update(struct amdtp_stream *s)
 {
 	/* Precomputing. */
-	ACCESS_ONCE(s->source_node_id_field) =
-		(fw_parent_device(s->unit)->card->node_id << CIP_SID_SHIFT) &
-								CIP_SID_MASK;
+	WRITE_ONCE(s->source_node_id_field,
+                   (fw_parent_device(s->unit)->card->node_id << CIP_SID_SHIFT) & CIP_SID_MASK);
 }
 EXPORT_SYMBOL(amdtp_stream_update);
 
@@ -1022,7 +1021,7 @@ void amdtp_stream_pcm_abort(struct amdtp_stream *s)
 {
 	struct snd_pcm_substream *pcm;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm)
 		snd_pcm_stop_xrun(pcm);
 }
diff --git a/sound/firewire/amdtp-stream.h b/sound/firewire/amdtp-stream.h
index ed6eafd10992..e45de3eecfe3 100644
--- a/sound/firewire/amdtp-stream.h
+++ b/sound/firewire/amdtp-stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_AMDTP_H_INCLUDED
 #define SOUND_FIREWIRE_AMDTP_H_INCLUDED
 
@@ -220,7 +221,7 @@ static inline bool amdtp_stream_pcm_running(struct amdtp_stream *s)
 static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s,
 					    struct snd_pcm_substream *pcm)
 {
-	ACCESS_ONCE(s->pcm) = pcm;
+	WRITE_ONCE(s->pcm, pcm);
 }
 
 static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc)
diff --git a/sound/firewire/bebob/Makefile b/sound/firewire/bebob/Makefile
index dd454867240d..14bc84c51ef5 100644
--- a/sound/firewire/bebob/Makefile
+++ b/sound/firewire/bebob/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \
 		  bebob_pcm.o bebob_hwdep.o bebob_terratec.o \
 		  bebob_yamaha_terratec.o bebob_focusrite.o bebob_maudio.o \
diff --git a/sound/firewire/cmp.h b/sound/firewire/cmp.h
index ebcb48484fca..b60b415caa8f 100644
--- a/sound/firewire/cmp.h
+++ b/sound/firewire/cmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_CMP_H_INCLUDED
 #define SOUND_FIREWIRE_CMP_H_INCLUDED
 
diff --git a/sound/firewire/dice/dice-interface.h b/sound/firewire/dice/dice-interface.h
index 47f2c0a6f5d9..15a484b05298 100644
--- a/sound/firewire/dice/dice-interface.h
+++ b/sound/firewire/dice/dice-interface.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED
 #define SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED
 
diff --git a/sound/firewire/digi00x/amdtp-dot.c b/sound/firewire/digi00x/amdtp-dot.c
index 1453c34ce99f..4a884a335248 100644
--- a/sound/firewire/digi00x/amdtp-dot.c
+++ b/sound/firewire/digi00x/amdtp-dot.c
@@ -327,7 +327,7 @@ void amdtp_dot_midi_trigger(struct amdtp_stream *s, unsigned int port,
 	struct amdtp_dot *p = s->protocol;
 
 	if (port < MAX_MIDI_PORTS)
-		ACCESS_ONCE(p->midi[port]) = midi;
+		WRITE_ONCE(p->midi[port], midi);
 }
 
 static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
@@ -338,7 +338,7 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
 	struct snd_pcm_substream *pcm;
 	unsigned int pcm_frames;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm) {
 		read_pcm_s32(s, pcm, buffer, data_blocks);
 		pcm_frames = data_blocks;
@@ -359,7 +359,7 @@ static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
 	struct snd_pcm_substream *pcm;
 	unsigned int pcm_frames;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm) {
 		write_pcm_s32(s, pcm, buffer, data_blocks);
 		pcm_frames = data_blocks;
diff --git a/sound/firewire/fcp.h b/sound/firewire/fcp.h
index 63ae4f7ce3af..512f7c40903a 100644
--- a/sound/firewire/fcp.h
+++ b/sound/firewire/fcp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_FCP_H_INCLUDED
 #define SOUND_FIREWIRE_FCP_H_INCLUDED
 
diff --git a/sound/firewire/fireface/amdtp-ff.c b/sound/firewire/fireface/amdtp-ff.c
index 780da9deb2f0..77c7598b61ab 100644
--- a/sound/firewire/fireface/amdtp-ff.c
+++ b/sound/firewire/fireface/amdtp-ff.c
@@ -108,7 +108,7 @@ static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
 					   unsigned int data_blocks,
 					   unsigned int *syt)
 {
-	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
+	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
 	unsigned int pcm_frames;
 
 	if (pcm) {
@@ -127,7 +127,7 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
 					   unsigned int data_blocks,
 					   unsigned int *syt)
 {
-	struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm);
+	struct snd_pcm_substream *pcm = READ_ONCE(s->pcm);
 	unsigned int pcm_frames;
 
 	if (pcm) {
diff --git a/sound/firewire/fireface/ff-midi.c b/sound/firewire/fireface/ff-midi.c
index 949ee56b4e0e..6a49611ee462 100644
--- a/sound/firewire/fireface/ff-midi.c
+++ b/sound/firewire/fireface/ff-midi.c
@@ -22,7 +22,7 @@ static int midi_playback_open(struct snd_rawmidi_substream *substream)
 	ff->running_status[substream->number] = 0;
 	ff->rx_midi_error[substream->number] = false;
 
-	ACCESS_ONCE(ff->rx_midi_substreams[substream->number]) = substream;
+	WRITE_ONCE(ff->rx_midi_substreams[substream->number], substream);
 
 	return 0;
 }
@@ -38,7 +38,7 @@ static int midi_playback_close(struct snd_rawmidi_substream *substream)
 	struct snd_ff *ff = substream->rmidi->private_data;
 
 	cancel_work_sync(&ff->rx_midi_work[substream->number]);
-	ACCESS_ONCE(ff->rx_midi_substreams[substream->number]) = NULL;
+	WRITE_ONCE(ff->rx_midi_substreams[substream->number], NULL);
 
 	return 0;
 }
@@ -52,10 +52,10 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *substream,
 	spin_lock_irqsave(&ff->lock, flags);
 
 	if (up)
-		ACCESS_ONCE(ff->tx_midi_substreams[substream->number]) =
-								substream;
+		WRITE_ONCE(ff->tx_midi_substreams[substream->number],
+			   substream);
 	else
-		ACCESS_ONCE(ff->tx_midi_substreams[substream->number]) = NULL;
+		WRITE_ONCE(ff->tx_midi_substreams[substream->number], NULL);
 
 	spin_unlock_irqrestore(&ff->lock, flags);
 }
diff --git a/sound/firewire/fireface/ff-transaction.c b/sound/firewire/fireface/ff-transaction.c
index dd6c8e839647..332b29f8ed75 100644
--- a/sound/firewire/fireface/ff-transaction.c
+++ b/sound/firewire/fireface/ff-transaction.c
@@ -12,7 +12,7 @@ static void finish_transmit_midi_msg(struct snd_ff *ff, unsigned int port,
 				     int rcode)
 {
 	struct snd_rawmidi_substream *substream =
-				ACCESS_ONCE(ff->rx_midi_substreams[port]);
+				READ_ONCE(ff->rx_midi_substreams[port]);
 
 	if (rcode_is_permanent_error(rcode)) {
 		ff->rx_midi_error[port] = true;
@@ -60,7 +60,7 @@ static inline void fill_midi_buf(struct snd_ff *ff, unsigned int port,
 static void transmit_midi_msg(struct snd_ff *ff, unsigned int port)
 {
 	struct snd_rawmidi_substream *substream =
-			ACCESS_ONCE(ff->rx_midi_substreams[port]);
+			READ_ONCE(ff->rx_midi_substreams[port]);
 	u8 *buf = (u8 *)ff->msg_buf[port];
 	int i, len;
 
@@ -159,7 +159,7 @@ static void handle_midi_msg(struct fw_card *card, struct fw_request *request,
 		 */
 		index = (quad >> 8) & 0xff;
 		if (index > 0) {
-			substream = ACCESS_ONCE(ff->tx_midi_substreams[0]);
+			substream = READ_ONCE(ff->tx_midi_substreams[0]);
 			if (substream != NULL) {
 				byte = quad & 0xff;
 				snd_rawmidi_receive(substream, &byte, 1);
@@ -169,7 +169,7 @@ static void handle_midi_msg(struct fw_card *card, struct fw_request *request,
 		/* Message in second port. */
 		index = (quad >> 24) & 0xff;
 		if (index > 0) {
-			substream = ACCESS_ONCE(ff->tx_midi_substreams[1]);
+			substream = READ_ONCE(ff->tx_midi_substreams[1]);
 			if (substream != NULL) {
 				byte = (quad >> 16) & 0xff;
 				snd_rawmidi_receive(substream, &byte, 1);
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index 5826aa8362f1..46092fa3ff9b 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -96,7 +96,7 @@ static void isight_update_pointers(struct isight *isight, unsigned int count)
 	ptr += count;
 	if (ptr >= runtime->buffer_size)
 		ptr -= runtime->buffer_size;
-	ACCESS_ONCE(isight->buffer_pointer) = ptr;
+	WRITE_ONCE(isight->buffer_pointer, ptr);
 
 	isight->period_counter += count;
 	if (isight->period_counter >= runtime->period_size) {
@@ -111,7 +111,7 @@ static void isight_samples(struct isight *isight,
 	struct snd_pcm_runtime *runtime;
 	unsigned int count1;
 
-	if (!ACCESS_ONCE(isight->pcm_running))
+	if (!READ_ONCE(isight->pcm_running))
 		return;
 
 	runtime = isight->pcm->runtime;
@@ -131,7 +131,7 @@ static void isight_samples(struct isight *isight,
 
 static void isight_pcm_abort(struct isight *isight)
 {
-	if (ACCESS_ONCE(isight->pcm_active))
+	if (READ_ONCE(isight->pcm_active))
 		snd_pcm_stop_xrun(isight->pcm);
 }
 
@@ -141,7 +141,7 @@ static void isight_dropped_samples(struct isight *isight, unsigned int total)
 	u32 dropped;
 	unsigned int count1;
 
-	if (!ACCESS_ONCE(isight->pcm_running))
+	if (!READ_ONCE(isight->pcm_running))
 		return;
 
 	runtime = isight->pcm->runtime;
@@ -293,7 +293,7 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
 	if (err < 0)
 		return err;
 
-	ACCESS_ONCE(isight->pcm_active) = true;
+	WRITE_ONCE(isight->pcm_active, true);
 
 	return 0;
 }
@@ -331,7 +331,7 @@ static int isight_hw_free(struct snd_pcm_substream *substream)
 {
 	struct isight *isight = substream->private_data;
 
-	ACCESS_ONCE(isight->pcm_active) = false;
+	WRITE_ONCE(isight->pcm_active, false);
 
 	mutex_lock(&isight->mutex);
 	isight_stop_streaming(isight);
@@ -424,10 +424,10 @@ static int isight_trigger(struct snd_pcm_substream *substream, int cmd)
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
-		ACCESS_ONCE(isight->pcm_running) = true;
+		WRITE_ONCE(isight->pcm_running, true);
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
-		ACCESS_ONCE(isight->pcm_running) = false;
+		WRITE_ONCE(isight->pcm_running, false);
 		break;
 	default:
 		return -EINVAL;
@@ -439,7 +439,7 @@ static snd_pcm_uframes_t isight_pointer(struct snd_pcm_substream *substream)
 {
 	struct isight *isight = substream->private_data;
 
-	return ACCESS_ONCE(isight->buffer_pointer);
+	return READ_ONCE(isight->buffer_pointer);
 }
 
 static int isight_create_pcm(struct isight *isight)
diff --git a/sound/firewire/iso-resources.h b/sound/firewire/iso-resources.h
index 5a9af7c61657..34f85e9e8830 100644
--- a/sound/firewire/iso-resources.h
+++ b/sound/firewire/iso-resources.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
 #define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED
 
diff --git a/sound/firewire/lib.h b/sound/firewire/lib.h
index eef70922ed89..dc815dc3933e 100644
--- a/sound/firewire/lib.h
+++ b/sound/firewire/lib.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
 #define SOUND_FIREWIRE_LIB_H_INCLUDED
 
diff --git a/sound/firewire/motu/Makefile b/sound/firewire/motu/Makefile
index 728f586e754b..7c502d35103c 100644
--- a/sound/firewire/motu/Makefile
+++ b/sound/firewire/motu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS_amdtp-motu.o	:= -I$(src)
 
 snd-firewire-motu-objs := motu.o amdtp-motu.o motu-transaction.o motu-stream.o \
diff --git a/sound/firewire/motu/amdtp-motu.c b/sound/firewire/motu/amdtp-motu.c
index 96f0091144bb..f0555a24d90e 100644
--- a/sound/firewire/motu/amdtp-motu.c
+++ b/sound/firewire/motu/amdtp-motu.c
@@ -310,7 +310,7 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
 	if (p->midi_ports)
 		read_midi_messages(s, buffer, data_blocks);
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (data_blocks > 0 && pcm)
 		read_pcm_s32(s, pcm->runtime, buffer, data_blocks);
 
@@ -374,7 +374,7 @@ static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
 	if (p->midi_ports)
 		write_midi_messages(s, buffer, data_blocks);
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm)
 		write_pcm_s32(s, pcm->runtime, buffer, data_blocks);
 	else
diff --git a/sound/firewire/oxfw/oxfw-scs1x.c b/sound/firewire/oxfw/oxfw-scs1x.c
index 02d595665898..f33497cdc706 100644
--- a/sound/firewire/oxfw/oxfw-scs1x.c
+++ b/sound/firewire/oxfw/oxfw-scs1x.c
@@ -112,7 +112,7 @@ static void handle_hss(struct fw_card *card, struct fw_request *request,
 	}
 
 	if (length >= 1) {
-		stream = ACCESS_ONCE(scs->input);
+		stream = READ_ONCE(scs->input);
 		if (stream)
 			midi_input_packet(scs, stream, data, length);
 	}
@@ -183,7 +183,7 @@ static void scs_output_work(struct work_struct *work)
 	if (scs->transaction_running)
 		return;
 
-	stream = ACCESS_ONCE(scs->output);
+	stream = READ_ONCE(scs->output);
 	if (!stream || scs->error) {
 		scs->output_idle = true;
 		wake_up(&scs->idle_wait);
@@ -291,9 +291,9 @@ static void midi_capture_trigger(struct snd_rawmidi_substream *stream, int up)
 
 	if (up) {
 		scs->input_escape_count = 0;
-		ACCESS_ONCE(scs->input) = stream;
+		WRITE_ONCE(scs->input, stream);
 	} else {
-		ACCESS_ONCE(scs->input) = NULL;
+		WRITE_ONCE(scs->input, NULL);
 	}
 }
 
@@ -319,10 +319,10 @@ static void midi_playback_trigger(struct snd_rawmidi_substream *stream, int up)
 		scs->transaction_bytes = 0;
 		scs->error = false;
 
-		ACCESS_ONCE(scs->output) = stream;
+		WRITE_ONCE(scs->output, stream);
 		schedule_work(&scs->work);
 	} else {
-		ACCESS_ONCE(scs->output) = NULL;
+		WRITE_ONCE(scs->output, NULL);
 	}
 }
 static void midi_playback_drain(struct snd_rawmidi_substream *stream)
diff --git a/sound/firewire/packets-buffer.h b/sound/firewire/packets-buffer.h
index 6513c5cb6ea9..99e963c271e1 100644
--- a/sound/firewire/packets-buffer.h
+++ b/sound/firewire/packets-buffer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
 #define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
 
diff --git a/sound/firewire/tascam/amdtp-tascam.c b/sound/firewire/tascam/amdtp-tascam.c
index 6aff1fc1c72d..ab482423c165 100644
--- a/sound/firewire/tascam/amdtp-tascam.c
+++ b/sound/firewire/tascam/amdtp-tascam.c
@@ -124,7 +124,7 @@ static unsigned int process_tx_data_blocks(struct amdtp_stream *s,
 {
 	struct snd_pcm_substream *pcm;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (data_blocks > 0 && pcm)
 		read_pcm_s32(s, pcm, buffer, data_blocks);
 
@@ -143,7 +143,7 @@ static unsigned int process_rx_data_blocks(struct amdtp_stream *s,
 	/* This field is not used. */
 	*syt = 0x0000;
 
-	pcm = ACCESS_ONCE(s->pcm);
+	pcm = READ_ONCE(s->pcm);
 	if (pcm)
 		write_pcm_s32(s, pcm, buffer, data_blocks);
 	else
diff --git a/sound/firewire/tascam/tascam-transaction.c b/sound/firewire/tascam/tascam-transaction.c
index 8967c52f5032..2ad692dd4b13 100644
--- a/sound/firewire/tascam/tascam-transaction.c
+++ b/sound/firewire/tascam/tascam-transaction.c
@@ -148,7 +148,7 @@ static void async_midi_port_callback(struct fw_card *card, int rcode,
 				     void *callback_data)
 {
 	struct snd_fw_async_midi_port *port = callback_data;
-	struct snd_rawmidi_substream *substream = ACCESS_ONCE(port->substream);
+	struct snd_rawmidi_substream *substream = READ_ONCE(port->substream);
 
 	/* This port is closed. */
 	if (substream == NULL)
@@ -173,7 +173,7 @@ static void midi_port_work(struct work_struct *work)
 {
 	struct snd_fw_async_midi_port *port =
 			container_of(work, struct snd_fw_async_midi_port, work);
-	struct snd_rawmidi_substream *substream = ACCESS_ONCE(port->substream);
+	struct snd_rawmidi_substream *substream = READ_ONCE(port->substream);
 	int generation;
 
 	/* Under transacting or error state. */
@@ -282,7 +282,7 @@ static void handle_midi_tx(struct fw_card *card, struct fw_request *request,
 				bytes = 3;
 		}
 
-		substream = ACCESS_ONCE(tscm->tx_midi_substreams[port]);
+		substream = READ_ONCE(tscm->tx_midi_substreams[port]);
 		if (substream != NULL)
 			snd_rawmidi_receive(substream, b + 1, bytes);
 	}
diff --git a/sound/hda/Makefile b/sound/hda/Makefile
index 3b9bedee2fa4..e4e726f2ce98 100644
--- a/sound/hda/Makefile
+++ b/sound/hda/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-hda-core-objs := hda_bus_type.o hdac_bus.o hdac_device.o hdac_sysfs.o \
 	hdac_regmap.o hdac_controller.o hdac_stream.o array.o hdmi_chmap.o
 
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 978dc1801b3a..f6d2985b2520 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -284,6 +284,11 @@ int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus)
 		dev_dbg(bus->dev, "HDA capability ID: 0x%x\n",
 			(cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF);
 
+		if (cur_cap == -1) {
+			dev_dbg(bus->dev, "Invalid capability reg read\n");
+			break;
+		}
+
 		switch ((cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF) {
 		case AZX_ML_CAP_ID:
 			dev_dbg(bus->dev, "Found ML capability\n");
diff --git a/sound/hda/hdac_sysfs.c b/sound/hda/hdac_sysfs.c
index 42d61bf41969..3c2d45ee6ab8 100644
--- a/sound/hda/hdac_sysfs.c
+++ b/sound/hda/hdac_sysfs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * sysfs support for HD-audio core device
  */
diff --git a/sound/hda/local.h b/sound/hda/local.h
index 0d5bb159d538..7258fa8ce268 100644
--- a/sound/hda/local.h
+++ b/sound/hda/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Local helper macros and functions for HD-audio core drivers
  */
diff --git a/sound/hda/trace.h b/sound/hda/trace.h
index e27e2c0b7b17..70af6c815089 100644
--- a/sound/hda/trace.h
+++ b/sound/hda/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM hda
 
diff --git a/sound/i2c/Makefile b/sound/i2c/Makefile
index 36879bf88700..09978855e08e 100644
--- a/sound/i2c/Makefile
+++ b/sound/i2c/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/i2c/other/Makefile b/sound/i2c/other/Makefile
index 5526b03b95a2..1a4ce1236146 100644
--- a/sound/i2c/other/Makefile
+++ b/sound/i2c/other/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2003 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/isa/Makefile b/sound/isa/Makefile
index 9a15f1497b10..5eaddbf4a712 100644
--- a/sound/isa/Makefile
+++ b/sound/isa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/isa/gus/Makefile b/sound/isa/gus/Makefile
index 6cd4ee03754a..c6f32ffd3420 100644
--- a/sound/isa/gus/Makefile
+++ b/sound/isa/gus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/isa/msnd/Makefile b/sound/isa/msnd/Makefile
index 2171c0aa2f62..ec231a7b1d5e 100644
--- a/sound/isa/msnd/Makefile
+++ b/sound/isa/msnd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 snd-msnd-lib-objs := msnd.o msnd_midi.o msnd_pinnacle_mixer.o
 snd-msnd-pinnacle-objs := msnd_pinnacle.o
diff --git a/sound/isa/opti9xx/Makefile b/sound/isa/opti9xx/Makefile
index b4d894db257a..a9dcdeb502bd 100644
--- a/sound/isa/opti9xx/Makefile
+++ b/sound/isa/opti9xx/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/isa/sb/Makefile b/sound/isa/sb/Makefile
index 08b9fb974658..f174a5b3c8e4 100644
--- a/sound/isa/sb/Makefile
+++ b/sound/isa/sb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/oss/Makefile b/sound/oss/Makefile
index 9bdbbde2173e..6564eace4749 100644
--- a/sound/oss/Makefile
+++ b/sound/oss/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for the Linux sound card driver
 #
 # 18 Apr 1998, Michael Elizabeth Chastain, <mailto:mec@shout.net>
diff --git a/sound/oss/ad1848.h b/sound/oss/ad1848.h
index b95ebe28d426..390f03e13d09 100644
--- a/sound/oss/ad1848.h
+++ b/sound/oss/ad1848.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #include <linux/interrupt.h>
 
diff --git a/sound/oss/bin2hex.c b/sound/oss/bin2hex.c
index b59109eb0db4..26c04ce04d71 100644
--- a/sound/oss/bin2hex.c
+++ b/sound/oss/bin2hex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/sound/oss/dmasound/dmasound.h b/sound/oss/dmasound/dmasound.h
index 01019f06fa91..c1c52b479da2 100644
--- a/sound/oss/dmasound/dmasound.h
+++ b/sound/oss/dmasound/dmasound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _dmasound_h_
 /*
  *  linux/sound/oss/dmasound/dmasound.h
diff --git a/sound/oss/hex2hex.c b/sound/oss/hex2hex.c
index 041ef5c52bc2..f76d729b0196 100644
--- a/sound/oss/hex2hex.c
+++ b/sound/oss/hex2hex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * hex2hex reads stdin in Intel HEX format and produces an
  * (unsigned char) array which contains the bytes and writes it
diff --git a/sound/oss/midi_ctrl.h b/sound/oss/midi_ctrl.h
index 3353e5a67c24..240d0c719f1e 100644
--- a/sound/oss/midi_ctrl.h
+++ b/sound/oss/midi_ctrl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static unsigned char ctrl_def_values[128] =
 {
 	0x40,0x00,0x40,0x40,  0x40,0x40,0x40,0x7f,	/*   0 to   7 */
diff --git a/sound/oss/midi_synth.h b/sound/oss/midi_synth.h
index b64ddd6c4abc..1cf676c7510e 100644
--- a/sound/oss/midi_synth.h
+++ b/sound/oss/midi_synth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 int midi_synth_ioctl (int dev,
 	    unsigned int cmd, void __user * arg);
 int midi_synth_kill_note (int dev, int channel, int note, int velocity);
diff --git a/sound/oss/midibuf.c b/sound/oss/midibuf.c
index 701c7625c971..1277df815d5b 100644
--- a/sound/oss/midibuf.c
+++ b/sound/oss/midibuf.c
@@ -52,7 +52,7 @@ static struct midi_parms parms[MAX_MIDI_DEV];
 static void midi_poll(unsigned long dummy);
 
 
-static DEFINE_TIMER(poll_timer, midi_poll, 0, 0);
+static DEFINE_TIMER(poll_timer, midi_poll);
 
 static volatile int open_devs;
 static DEFINE_SPINLOCK(lock);
diff --git a/sound/oss/mpu401.h b/sound/oss/mpu401.h
index 0ad1e9ee74f7..6beb8c2ae405 100644
--- a/sound/oss/mpu401.h
+++ b/sound/oss/mpu401.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*	From uart401.c */
 int probe_uart401 (struct address_info *hw_config, struct module *owner);
diff --git a/sound/oss/os.h b/sound/oss/os.h
index 0bf89e1d679c..16f3a069b85c 100644
--- a/sound/oss/os.h
+++ b/sound/oss/os.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define ALLOW_SELECT
 #undef NO_INLINE_ASM
 #define SHORT_BANNERS
diff --git a/sound/oss/pas2.h b/sound/oss/pas2.h
index d19f757dbd79..57f476238309 100644
--- a/sound/oss/pas2.h
+++ b/sound/oss/pas2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /*	From pas_card.c	*/
 int pas_set_intr(int mask);
diff --git a/sound/oss/sb.h b/sound/oss/sb.h
index 77e8891ce333..bb1d18709b36 100644
--- a/sound/oss/sb.h
+++ b/sound/oss/sb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define DSP_RESET	(devc->base + 0x6)
 #define DSP_READ	(devc->base + 0xA)
 #define DSP_WRITE	(devc->base + 0xC)
diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c
index 57f7d25a2cd3..17e3f14318cd 100644
--- a/sound/oss/sb_ess.c
+++ b/sound/oss/sb_ess.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef FKS_LOGGING
 #undef FKS_TEST
 
diff --git a/sound/oss/sb_ess.h b/sound/oss/sb_ess.h
index 38aa072e01f2..1c741212bcfc 100644
--- a/sound/oss/sb_ess.h
+++ b/sound/oss/sb_ess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Created: 9-Jan-1999 Rolf Fokkens
  */
diff --git a/sound/oss/sleep.h b/sound/oss/sleep.h
index a20fc925a5ce..fd17d44d13dd 100644
--- a/sound/oss/sleep.h
+++ b/sound/oss/sleep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/wait.h>
 
 /*
diff --git a/sound/oss/sound_calls.h b/sound/oss/sound_calls.h
index 87d8ad4a0340..bcd3f7340ef7 100644
--- a/sound/oss/sound_calls.h
+++ b/sound/oss/sound_calls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  *	DMA buffer calls
  */
diff --git a/sound/oss/sound_firmware.h b/sound/oss/sound_firmware.h
index da4c67e005ed..ebcbded0e8c2 100644
--- a/sound/oss/sound_firmware.h
+++ b/sound/oss/sound_firmware.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/fs.h>
 
 /**
@@ -21,7 +22,7 @@ static inline int mod_firmware_load(const char *fn, char **fp)
 	loff_t size;
 	int err;
 
-	err = kernel_read_file_from_path((char *)fn, (void **)fp, &size,
+	err = kernel_read_file_from_path(fn, (void **)fp, &size,
 					 131072, READING_FIRMWARE);
 	if (err < 0)
 		return 0;
diff --git a/sound/oss/soundcard.c b/sound/oss/soundcard.c
index b70c7c8f9c5d..4391062e5cfd 100644
--- a/sound/oss/soundcard.c
+++ b/sound/oss/soundcard.c
@@ -662,7 +662,7 @@ static void do_sequencer_timer(unsigned long dummy)
 }
 
 
-static DEFINE_TIMER(seq_timer, do_sequencer_timer, 0, 0);
+static DEFINE_TIMER(seq_timer, do_sequencer_timer);
 
 void request_sound_timer(int count)
 {
diff --git a/sound/oss/sys_timer.c b/sound/oss/sys_timer.c
index d17019d25b99..8a4b5625dba6 100644
--- a/sound/oss/sys_timer.c
+++ b/sound/oss/sys_timer.c
@@ -28,7 +28,7 @@ static unsigned long prev_event_time;
 
 static void     poll_def_tmr(unsigned long dummy);
 static DEFINE_SPINLOCK(lock);
-static DEFINE_TIMER(def_tmr, poll_def_tmr, 0, 0);
+static DEFINE_TIMER(def_tmr, poll_def_tmr);
 
 static unsigned long
 tmr2ticks(int tmr_value)
diff --git a/sound/oss/tuning.h b/sound/oss/tuning.h
index a73e3dd39f9a..953539931237 100644
--- a/sound/oss/tuning.h
+++ b/sound/oss/tuning.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static unsigned short semitone_tuning[24] =
 {
 /*   0 */ 10000, 10595, 11225, 11892, 12599, 13348, 14142, 14983, 
diff --git a/sound/oss/uart6850.c b/sound/oss/uart6850.c
index eda32d7eddbd..a9d3f7568525 100644
--- a/sound/oss/uart6850.c
+++ b/sound/oss/uart6850.c
@@ -78,7 +78,7 @@ static void (*midi_input_intr) (int dev, unsigned char data);
 static void poll_uart6850(unsigned long dummy);
 
 
-static DEFINE_TIMER(uart6850_timer, poll_uart6850, 0, 0);
+static DEFINE_TIMER(uart6850_timer, poll_uart6850);
 
 static void uart6850_input_loop(void)
 {
diff --git a/sound/oss/ulaw.h b/sound/oss/ulaw.h
index 0ff8c0a3bda0..ee898a0f78ce 100644
--- a/sound/oss/ulaw.h
+++ b/sound/oss/ulaw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 static unsigned char ulaw_dsp[] = {
      3,    7,   11,   15,   19,   23,   27,   31,
     35,   39,   43,   47,   51,   55,   59,   63,
diff --git a/sound/oss/v_midi.h b/sound/oss/v_midi.h
index 08e2185ee816..f4fc2bed07f8 100644
--- a/sound/oss/v_midi.h
+++ b/sound/oss/v_midi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 typedef struct vmidi_devc {
 	   int dev;
 
diff --git a/sound/oss/waveartist.h b/sound/oss/waveartist.h
index dac4ca910d95..f18d74b26483 100644
--- a/sound/oss/waveartist.h
+++ b/sound/oss/waveartist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * linux/sound/oss/waveartist.h
  *
diff --git a/sound/parisc/harmony.h b/sound/parisc/harmony.h
index 2e434523fedf..f4c29a2e32e8 100644
--- a/sound/parisc/harmony.h
+++ b/sound/parisc/harmony.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Hewlett-Packard Harmony audio driver
  * Copyright (C) 2004, Kyle McMartin <kyle@parisc-linux.org>
  */
diff --git a/sound/pci/Makefile b/sound/pci/Makefile
index 54fe325e3aa5..04cac7469139 100644
--- a/sound/pci/Makefile
+++ b/sound/pci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/ad1889.h b/sound/pci/ad1889.h
index 5e6dad5341a1..d6e8d6c19adc 100644
--- a/sound/pci/ad1889.h
+++ b/sound/pci/ad1889.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Analog Devices 1889 audio driver
  * Copyright (C) 2004, Kyle McMartin <kyle@parisc-linux.org>
  */
diff --git a/sound/pci/asihpi/hpi_version.h b/sound/pci/asihpi/hpi_version.h
index 6623ab110038..016bc55457e3 100644
--- a/sound/pci/asihpi/hpi_version.h
+++ b/sound/pci/asihpi/hpi_version.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /** HPI Version Definitions
 Development releases have odd minor version.
 Production releases have even minor version.
diff --git a/sound/pci/asihpi/hpifunc.c b/sound/pci/asihpi/hpifunc.c
index f9b57647b319..1de05383126a 100644
--- a/sound/pci/asihpi/hpifunc.c
+++ b/sound/pci/asihpi/hpifunc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include "hpi_internal.h"
 #include "hpimsginit.h"
diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
index 7e3aa50b21f9..5badd08e1d69 100644
--- a/sound/pci/asihpi/hpioctl.c
+++ b/sound/pci/asihpi/hpioctl.c
@@ -103,6 +103,7 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	void __user *puhr;
 	union hpi_message_buffer_v1 *hm;
 	union hpi_response_buffer_v1 *hr;
+	u16 msg_size;
 	u16 res_max_size;
 	u32 uncopied_bytes;
 	int err = 0;
@@ -127,22 +128,25 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	}
 
 	/* Now read the message size and data from user space.  */
-	if (get_user(hm->h.size, (u16 __user *)puhm)) {
+	if (get_user(msg_size, (u16 __user *)puhm)) {
 		err = -EFAULT;
 		goto out;
 	}
-	if (hm->h.size > sizeof(*hm))
-		hm->h.size = sizeof(*hm);
+	if (msg_size > sizeof(*hm))
+		msg_size = sizeof(*hm);
 
 	/* printk(KERN_INFO "message size %d\n", hm->h.wSize); */
 
-	uncopied_bytes = copy_from_user(hm, puhm, hm->h.size);
+	uncopied_bytes = copy_from_user(hm, puhm, msg_size);
 	if (uncopied_bytes) {
 		HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes);
 		err = -EFAULT;
 		goto out;
 	}
 
+	/* Override h.size in case it is changed between two userspace fetches */
+	hm->h.size = msg_size;
+
 	if (get_user(res_max_size, (u16 __user *)puhr)) {
 		err = -EFAULT;
 		goto out;
diff --git a/sound/pci/au88x0/Makefile b/sound/pci/au88x0/Makefile
index d0a66bc5d4a7..78ab11562f4d 100644
--- a/sound/pci/au88x0/Makefile
+++ b/sound/pci/au88x0/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-au8810-objs := au8810.o
 snd-au8820-objs := au8820.o
 snd-au8830-objs := au8830.o
diff --git a/sound/pci/au88x0/au8810.c b/sound/pci/au88x0/au8810.c
index 1b2e34069eb3..b2bfa50bfe30 100644
--- a/sound/pci/au88x0/au8810.c
+++ b/sound/pci/au88x0/au8810.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "au8810.h"
 #include "au88x0.h"
 static const struct pci_device_id snd_vortex_ids[] = {
diff --git a/sound/pci/au88x0/au8810.h b/sound/pci/au88x0/au8810.h
index 79fbee3845eb..94f11032067e 100644
--- a/sound/pci/au88x0/au8810.h
+++ b/sound/pci/au88x0/au8810.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
     Aureal Advantage Soundcard driver.
  */
diff --git a/sound/pci/au88x0/au8820.c b/sound/pci/au88x0/au8820.c
index 74c53fa5f06b..dbc2263b49c6 100644
--- a/sound/pci/au88x0/au8820.c
+++ b/sound/pci/au88x0/au8820.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "au8820.h"
 #include "au88x0.h"
 static const struct pci_device_id snd_vortex_ids[] = {
diff --git a/sound/pci/au88x0/au8820.h b/sound/pci/au88x0/au8820.h
index cafdb9668a34..8a128e8febbb 100644
--- a/sound/pci/au88x0/au8820.h
+++ b/sound/pci/au88x0/au8820.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
     Aureal Vortex Soundcard driver.
 
diff --git a/sound/pci/au88x0/au8830.c b/sound/pci/au88x0/au8830.c
index 56f675aad3ad..e963c4e2f026 100644
--- a/sound/pci/au88x0/au8830.c
+++ b/sound/pci/au88x0/au8830.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "au8830.h"
 #include "au88x0.h"
 static const struct pci_device_id snd_vortex_ids[] = {
diff --git a/sound/pci/au88x0/au8830.h b/sound/pci/au88x0/au8830.h
index 999b29ab34ad..40f671ffd45a 100644
--- a/sound/pci/au88x0/au8830.h
+++ b/sound/pci/au88x0/au8830.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
     Aureal Vortex Soundcard driver.
 
diff --git a/sound/pci/au88x0/au88x0_eq.h b/sound/pci/au88x0/au88x0_eq.h
index 474cd0046294..797cdae1db98 100644
--- a/sound/pci/au88x0/au88x0_eq.h
+++ b/sound/pci/au88x0/au88x0_eq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AU88X0_EQ_H
 #define AU88X0_EQ_H
 
diff --git a/sound/pci/au88x0/au88x0_eqdata.c b/sound/pci/au88x0/au88x0_eqdata.c
index ce8dca8ce1e2..49a52d298b1a 100644
--- a/sound/pci/au88x0/au88x0_eqdata.c
+++ b/sound/pci/au88x0/au88x0_eqdata.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Data structs */
 
 static u16 asEqCoefsZeros[50] = {
diff --git a/sound/pci/au88x0/au88x0_mixer.c b/sound/pci/au88x0/au88x0_mixer.c
index a58298cfe7e0..60dd8a091bc3 100644
--- a/sound/pci/au88x0/au88x0_mixer.c
+++ b/sound/pci/au88x0/au88x0_mixer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Vortex Mixer support.
  *
diff --git a/sound/pci/au88x0/au88x0_wt.h b/sound/pci/au88x0/au88x0_wt.h
index 38d98f88a95c..7b2cffad8643 100644
--- a/sound/pci/au88x0/au88x0_wt.h
+++ b/sound/pci/au88x0/au88x0_wt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /***************************************************************************
  *           WT register offsets.
  *
diff --git a/sound/pci/azt3328.h b/sound/pci/azt3328.h
index 6f46b97650cc..6f9022784499 100644
--- a/sound/pci/azt3328.h
+++ b/sound/pci/azt3328.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_AZT3328_H
 #define __SOUND_AZT3328_H
 
diff --git a/sound/pci/cs5535audio/cs5535audio.h b/sound/pci/cs5535audio/cs5535audio.h
index 0579daa62215..f4fcdf93f3c8 100644
--- a/sound/pci/cs5535audio/cs5535audio.h
+++ b/sound/pci/cs5535audio/cs5535audio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_CS5535AUDIO_H
 #define __SOUND_CS5535AUDIO_H
 
diff --git a/sound/pci/ctxfi/cttimer.h b/sound/pci/ctxfi/cttimer.h
index 979348229291..9c5cb403b646 100644
--- a/sound/pci/ctxfi/cttimer.h
+++ b/sound/pci/ctxfi/cttimer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Timer handling
  */
diff --git a/sound/pci/echoaudio/Makefile b/sound/pci/echoaudio/Makefile
index 1361de77e0cd..4865b8fe7434 100644
--- a/sound/pci/echoaudio/Makefile
+++ b/sound/pci/echoaudio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA Echoaudio soundcard drivers
 # Copyright (c) 2003 by Giuliano Pochini <pochini@shiny.it>
diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index 7326695bca33..d68f99e076a8 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -1272,11 +1272,11 @@ static int snd_echo_mixer_info(struct snd_kcontrol *kcontrol,
 
 	chip = snd_kcontrol_chip(kcontrol);
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
 	uinfo->value.integer.min = ECHOGAIN_MINOUT;
 	uinfo->value.integer.max = ECHOGAIN_MAXOUT;
 	uinfo->dimen.d[0] = num_busses_out(chip);
 	uinfo->dimen.d[1] = num_busses_in(chip);
-	uinfo->count = uinfo->dimen.d[0] * uinfo->dimen.d[1];
 	return 0;
 }
 
@@ -1344,11 +1344,11 @@ static int snd_echo_vmixer_info(struct snd_kcontrol *kcontrol,
 
 	chip = snd_kcontrol_chip(kcontrol);
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
 	uinfo->value.integer.min = ECHOGAIN_MINOUT;
 	uinfo->value.integer.max = ECHOGAIN_MAXOUT;
 	uinfo->dimen.d[0] = num_busses_out(chip);
 	uinfo->dimen.d[1] = num_pipes_out(chip);
-	uinfo->count = uinfo->dimen.d[0] * uinfo->dimen.d[1];
 	return 0;
 }
 
@@ -1728,6 +1728,7 @@ static int snd_echo_vumeters_info(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 96;
 	uinfo->value.integer.min = ECHOGAIN_MINOUT;
 	uinfo->value.integer.max = 0;
 #ifdef ECHOCARD_HAS_VMIXER
@@ -1737,7 +1738,6 @@ static int snd_echo_vumeters_info(struct snd_kcontrol *kcontrol,
 #endif
 	uinfo->dimen.d[1] = 16;	/* 16 channels */
 	uinfo->dimen.d[2] = 2;	/* 0=level, 1=peak */
-	uinfo->count = uinfo->dimen.d[0] * uinfo->dimen.d[1] * uinfo->dimen.d[2];
 	return 0;
 }
 
diff --git a/sound/pci/emu10k1/Makefile b/sound/pci/emu10k1/Makefile
index 29b44ca27010..17d5527be319 100644
--- a/sound/pci/emu10k1/Makefile
+++ b/sound/pci/emu10k1/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/hda/Makefile b/sound/pci/hda/Makefile
index 6d83c6e0396a..b57432f00056 100644
--- a/sound/pci/hda/Makefile
+++ b/sound/pci/hda/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-hda-intel-objs := hda_intel.o
 snd-hda-tegra-objs := hda_tegra.o
 
diff --git a/sound/pci/hda/dell_wmi_helper.c b/sound/pci/hda/dell_wmi_helper.c
index 44b1e15682b9..1b48a8c19d28 100644
--- a/sound/pci/hda/dell_wmi_helper.c
+++ b/sound/pci/hda/dell_wmi_helper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Helper functions for Dell Mic Mute LED control;
  * to be included from codec driver
  */
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 3db26c451837..a0989d231fd0 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1803,36 +1803,6 @@ static int check_slave_present(struct hda_codec *codec,
 	return 1;
 }
 
-/* guess the value corresponding to 0dB */
-static int get_kctl_0dB_offset(struct hda_codec *codec,
-			       struct snd_kcontrol *kctl, int *step_to_check)
-{
-	int _tlv[4];
-	const int *tlv = NULL;
-	int val = -1;
-
-	if ((kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) &&
-	    kctl->tlv.c == snd_hda_mixer_amp_tlv) {
-		get_ctl_amp_tlv(kctl, _tlv);
-		tlv = _tlv;
-	} else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
-		tlv = kctl->tlv.p;
-	if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) {
-		int step = tlv[3];
-		step &= ~TLV_DB_SCALE_MUTE;
-		if (!step)
-			return -1;
-		if (*step_to_check && *step_to_check != step) {
-			codec_err(codec, "Mismatching dB step for vmaster slave (%d!=%d)\n",
--				   *step_to_check, step);
-			return -1;
-		}
-		*step_to_check = step;
-		val = -tlv[2] / step;
-	}
-	return val;
-}
-
 /* call kctl->put with the given value(s) */
 static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
 {
@@ -1847,19 +1817,58 @@ static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
 	return 0;
 }
 
-/* initialize the slave volume with 0dB */
-static int init_slave_0dB(struct hda_codec *codec,
-			  void *data, struct snd_kcontrol *slave)
+struct slave_init_arg {
+	struct hda_codec *codec;
+	int step;
+};
+
+/* initialize the slave volume with 0dB via snd_ctl_apply_vmaster_slaves() */
+static int init_slave_0dB(struct snd_kcontrol *kctl, void *_arg)
 {
-	int offset = get_kctl_0dB_offset(codec, slave, data);
-	if (offset > 0)
-		put_kctl_with_value(slave, offset);
+	struct slave_init_arg *arg = _arg;
+	int _tlv[4];
+	const int *tlv = NULL;
+	int step;
+	int val;
+
+	if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+		if (kctl->tlv.c != snd_hda_mixer_amp_tlv) {
+			codec_err(arg->codec,
+				  "Unexpected TLV callback for slave %s:%d\n",
+				  kctl->id.name, kctl->id.index);
+			return 0; /* ignore */
+		}
+		get_ctl_amp_tlv(kctl, _tlv);
+		tlv = _tlv;
+	} else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
+		tlv = kctl->tlv.p;
+
+	if (!tlv || tlv[0] != SNDRV_CTL_TLVT_DB_SCALE)
+		return 0;
+
+	step = tlv[3];
+	step &= ~TLV_DB_SCALE_MUTE;
+	if (!step)
+		return 0;
+	if (arg->step && arg->step != step) {
+		codec_err(arg->codec,
+			  "Mismatching dB step for vmaster slave (%d!=%d)\n",
+			  arg->step, step);
+		return 0;
+	}
+
+	arg->step = step;
+	val = -tlv[2] / step;
+	if (val > 0) {
+		put_kctl_with_value(kctl, val);
+		return val;
+	}
+
 	return 0;
 }
 
-/* unmute the slave */
-static int init_slave_unmute(struct hda_codec *codec,
-			     void *data, struct snd_kcontrol *slave)
+/* unmute the slave via snd_ctl_apply_vmaster_slaves() */
+static int init_slave_unmute(struct snd_kcontrol *slave, void *_arg)
 {
 	return put_kctl_with_value(slave, 1);
 }
@@ -1919,9 +1928,13 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
 	/* init with master mute & zero volume */
 	put_kctl_with_value(kctl, 0);
 	if (init_slave_vol) {
-		int step = 0;
-		map_slaves(codec, slaves, suffix,
-			   tlv ? init_slave_0dB : init_slave_unmute, &step);
+		struct slave_init_arg arg = {
+			.codec = codec,
+			.step = 0,
+		};
+		snd_ctl_apply_vmaster_slaves(kctl,
+					     tlv ? init_slave_0dB : init_slave_unmute,
+					     &arg);
 	}
 
 	if (ctl_ret)
diff --git a/sound/pci/hda/hda_controller_trace.h b/sound/pci/hda/hda_controller_trace.h
index 3e18d99bfb70..bf48304e230a 100644
--- a/sound/pci/hda/hda_controller_trace.h
+++ b/sound/pci/hda/hda_controller_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM hda_controller
 #define TRACE_INCLUDE_FILE hda_controller_trace
diff --git a/sound/pci/hda/hda_intel_trace.h b/sound/pci/hda/hda_intel_trace.h
index 0922d8b1b17d..73a7adfa192d 100644
--- a/sound/pci/hda/hda_intel_trace.h
+++ b/sound/pci/hda/hda_intel_trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM hda_intel
 #define TRACE_INCLUDE_FILE hda_intel_trace
diff --git a/sound/pci/hda/local.h b/sound/pci/hda/local.h
index 28cb7f98982e..3b8b7d78f9e0 100644
--- a/sound/pci/hda/local.h
+++ b/sound/pci/hda/local.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  */
 
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 2b64fabd5faa..c19c81d230bd 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -906,6 +906,7 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
 			      hda_nid_t pin_nid, u32 stream_tag, int format)
 {
 	struct hdmi_spec *spec = codec->spec;
+	unsigned int param;
 	int err;
 
 	err = spec->ops.pin_hbr_setup(codec, pin_nid, is_hbr_format(format));
@@ -915,6 +916,26 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
 		return err;
 	}
 
+	if (is_haswell_plus(codec)) {
+
+		/*
+		 * on recent platforms IEC Coding Type is required for HBR
+		 * support, read current Digital Converter settings and set
+		 * ICT bitfield if needed.
+		 */
+		param = snd_hda_codec_read(codec, cvt_nid, 0,
+					   AC_VERB_GET_DIGI_CONVERT_1, 0);
+
+		param = (param >> 16) & ~(AC_DIG3_ICT);
+
+		/* on recent platforms ICT mode is required for HBR support */
+		if (is_hbr_format(format))
+			param |= 0x1;
+
+		snd_hda_codec_write(codec, cvt_nid, 0,
+				    AC_VERB_SET_DIGI_CONVERT_3, param);
+	}
+
 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
 	return 0;
 }
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 0ce71111b4e3..dce0682c5001 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -327,6 +327,7 @@ static void alc_fill_eapd_coef(struct hda_codec *codec)
 	case 0x10ec0215:
 	case 0x10ec0225:
 	case 0x10ec0233:
+	case 0x10ec0236:
 	case 0x10ec0255:
 	case 0x10ec0256:
 	case 0x10ec0282:
@@ -911,6 +912,7 @@ static struct alc_codec_rename_pci_table rename_pci_tbl[] = {
 	{ 0x10ec0275, 0x1028, 0, "ALC3260" },
 	{ 0x10ec0899, 0x1028, 0, "ALC3861" },
 	{ 0x10ec0298, 0x1028, 0, "ALC3266" },
+	{ 0x10ec0236, 0x1028, 0, "ALC3204" },
 	{ 0x10ec0256, 0x1028, 0, "ALC3246" },
 	{ 0x10ec0225, 0x1028, 0, "ALC3253" },
 	{ 0x10ec0295, 0x1028, 0, "ALC3254" },
@@ -3930,6 +3932,7 @@ static void alc_headset_mode_unplugged(struct hda_codec *codec)
 		alc_process_coef_fw(codec, coef0255_1);
 		alc_process_coef_fw(codec, coef0255);
 		break;
+	case 0x10ec0236:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0256);
 		alc_process_coef_fw(codec, coef0255);
@@ -4028,6 +4031,7 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 	};
 
 	switch (codec->core.vendor_id) {
+	case 0x10ec0236:
 	case 0x10ec0255:
 	case 0x10ec0256:
 		alc_write_coef_idx(codec, 0x45, 0xc489);
@@ -4160,6 +4164,7 @@ static void alc_headset_mode_default(struct hda_codec *codec)
 		alc_process_coef_fw(codec, alc225_pre_hsmode);
 		alc_process_coef_fw(codec, coef0225);
 		break;
+	case 0x10ec0236:
 	case 0x10ec0255:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
@@ -4256,6 +4261,7 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 	case 0x10ec0255:
 		alc_process_coef_fw(codec, coef0255);
 		break;
+	case 0x10ec0236:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0256);
 		break;
@@ -4366,6 +4372,7 @@ static void alc_headset_mode_omtp(struct hda_codec *codec)
 	case 0x10ec0255:
 		alc_process_coef_fw(codec, coef0255);
 		break;
+	case 0x10ec0236:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0256);
 		break;
@@ -4451,6 +4458,7 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 	};
 
 	switch (codec->core.vendor_id) {
+	case 0x10ec0236:
 	case 0x10ec0255:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, coef0255);
@@ -4705,6 +4713,7 @@ static void alc255_set_default_jack_type(struct hda_codec *codec)
 	case 0x10ec0255:
 		alc_process_coef_fw(codec, alc255fw);
 		break;
+	case 0x10ec0236:
 	case 0x10ec0256:
 		alc_process_coef_fw(codec, alc256fw);
 		break;
@@ -6419,6 +6428,14 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 		ALC225_STANDARD_PINS,
 		{0x12, 0xb7a60130},
 		{0x1b, 0x90170110}),
+	SND_HDA_PIN_QUIRK(0x10ec0236, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x90a60140},
+		{0x14, 0x90170110},
+		{0x21, 0x02211020}),
+	SND_HDA_PIN_QUIRK(0x10ec0236, 0x1028, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0x90a60140},
+		{0x14, 0x90170150},
+		{0x21, 0x02211020}),
 	SND_HDA_PIN_QUIRK(0x10ec0255, 0x1028, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE,
 		{0x14, 0x90170110},
 		{0x21, 0x02211020}),
@@ -6527,6 +6544,11 @@ static const struct snd_hda_pin_quirk alc269_pin_fixup_tbl[] = {
 		{0x14, 0x90170110},
 		{0x1b, 0x90a70130},
 		{0x21, 0x03211020}),
+	SND_HDA_PIN_QUIRK(0x10ec0274, 0x1028, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE,
+		{0x12, 0xb7a60130},
+		{0x13, 0xb8a61140},
+		{0x16, 0x90170110},
+		{0x21, 0x04211020}),
 	SND_HDA_PIN_QUIRK(0x10ec0280, 0x103c, "HP", ALC280_FIXUP_HP_GPIO4,
 		{0x12, 0x90a60130},
 		{0x14, 0x90170110},
@@ -6806,6 +6828,7 @@ static int patch_alc269(struct hda_codec *codec)
 	case 0x10ec0255:
 		spec->codec_variant = ALC269_TYPE_ALC255;
 		break;
+	case 0x10ec0236:
 	case 0x10ec0256:
 		spec->codec_variant = ALC269_TYPE_ALC256;
 		spec->shutup = alc256_shutup;
@@ -7857,6 +7880,7 @@ static const struct hda_device_id snd_hda_id_realtek[] = {
 	HDA_CODEC_ENTRY(0x10ec0233, "ALC233", patch_alc269),
 	HDA_CODEC_ENTRY(0x10ec0234, "ALC234", patch_alc269),
 	HDA_CODEC_ENTRY(0x10ec0235, "ALC233", patch_alc269),
+	HDA_CODEC_ENTRY(0x10ec0236, "ALC236", patch_alc269),
 	HDA_CODEC_ENTRY(0x10ec0255, "ALC255", patch_alc269),
 	HDA_CODEC_ENTRY(0x10ec0256, "ALC256", patch_alc269),
 	HDA_CODEC_ENTRY(0x10ec0260, "ALC260", patch_alc260),
diff --git a/sound/pci/hda/thinkpad_helper.c b/sound/pci/hda/thinkpad_helper.c
index 4d9d320a7971..65bb3ac6af4c 100644
--- a/sound/pci/hda/thinkpad_helper.c
+++ b/sound/pci/hda/thinkpad_helper.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Helper functions for Thinkpad LED control;
  * to be included from codec driver
  */
diff --git a/sound/pci/ice1712/Makefile b/sound/pci/ice1712/Makefile
index 7e50c1324556..1196f22a9b45 100644
--- a/sound/pci/ice1712/Makefile
+++ b/sound/pci/ice1712/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/pci/ice1712/juli.h b/sound/pci/ice1712/juli.h
index d9f8534fd92e..9c22d4e73ee3 100644
--- a/sound/pci/ice1712/juli.h
+++ b/sound/pci/ice1712/juli.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_JULI_H
 #define __SOUND_JULI_H
 
diff --git a/sound/pci/ice1712/maya44.h b/sound/pci/ice1712/maya44.h
index eafd03a8f4b5..f5a97d987a6f 100644
--- a/sound/pci/ice1712/maya44.h
+++ b/sound/pci/ice1712/maya44.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_MAYA44_H
 #define __SOUND_MAYA44_H
 
diff --git a/sound/pci/ice1712/prodigy192.h b/sound/pci/ice1712/prodigy192.h
index 16a53b459c72..7bfd769ba982 100644
--- a/sound/pci/ice1712/prodigy192.h
+++ b/sound/pci/ice1712/prodigy192.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_PRODIGY192_H
 #define __SOUND_PRODIGY192_H
 
diff --git a/sound/pci/ice1712/psc724.h b/sound/pci/ice1712/psc724.h
index 858e5fd0eebb..e6ce335ae87e 100644
--- a/sound/pci/ice1712/psc724.h
+++ b/sound/pci/ice1712/psc724.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_PSC724_H
 #define __SOUND_PSC724_H
 
diff --git a/sound/pci/ice1712/quartet.h b/sound/pci/ice1712/quartet.h
index 80809b72439a..a1c2fe27185d 100644
--- a/sound/pci/ice1712/quartet.h
+++ b/sound/pci/ice1712/quartet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_QTET_H
 #define __SOUND_QTET_H
 
diff --git a/sound/pci/ice1712/se.h b/sound/pci/ice1712/se.h
index 0b0a9dabdcfb..61348ecef1e0 100644
--- a/sound/pci/ice1712/se.h
+++ b/sound/pci/ice1712/se.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_SE_H
 #define __SOUND_SE_H
 
diff --git a/sound/pci/ice1712/stac946x.h b/sound/pci/ice1712/stac946x.h
index 5b390952d0e4..58f9f17a258a 100644
--- a/sound/pci/ice1712/stac946x.h
+++ b/sound/pci/ice1712/stac946x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_STAC946X_H
 #define __SOUND_STAC946X_H
 
diff --git a/sound/pci/ice1712/wtm.h b/sound/pci/ice1712/wtm.h
index 423c1a204c0b..1cfcbde15f42 100644
--- a/sound/pci/ice1712/wtm.h
+++ b/sound/pci/ice1712/wtm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SOUND_WTM_H
 #define __SOUND_WTM_H
 
diff --git a/sound/pci/nm256/nm256_coef.c b/sound/pci/nm256/nm256_coef.c
index 747d5d6ccfa0..c757252119b1 100644
--- a/sound/pci/nm256/nm256_coef.c
+++ b/sound/pci/nm256/nm256_coef.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define NM_TOTAL_COEFF_COUNT 0x3158
 
 static char coefficients[NM_TOTAL_COEFF_COUNT * 4] = { 
diff --git a/sound/pci/oxygen/Makefile b/sound/pci/oxygen/Makefile
index ab085d753661..0dfc4f840992 100644
--- a/sound/pci/oxygen/Makefile
+++ b/sound/pci/oxygen/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-oxygen-lib-objs := oxygen_io.o oxygen_lib.o oxygen_mixer.o oxygen_pcm.o
 snd-oxygen-objs := oxygen.o xonar_dg_mixer.o xonar_dg.o
 snd-se6x-objs := se6x.o
diff --git a/sound/pci/oxygen/ak4396.h b/sound/pci/oxygen/ak4396.h
index 551c1cf8e2e0..a51223461b11 100644
--- a/sound/pci/oxygen/ak4396.h
+++ b/sound/pci/oxygen/ak4396.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef AK4396_H_INCLUDED
 #define AK4396_H_INCLUDED
 
diff --git a/sound/pci/oxygen/cm9780.h b/sound/pci/oxygen/cm9780.h
index 144596799676..7efb119d1763 100644
--- a/sound/pci/oxygen/cm9780.h
+++ b/sound/pci/oxygen/cm9780.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CM9780_H_INCLUDED
 #define CM9780_H_INCLUDED
 
diff --git a/sound/pci/oxygen/cs2000.h b/sound/pci/oxygen/cs2000.h
index c3501bdb5edc..aca04794ce28 100644
--- a/sound/pci/oxygen/cs2000.h
+++ b/sound/pci/oxygen/cs2000.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CS2000_H_INCLUDED
 #define CS2000_H_INCLUDED
 
diff --git a/sound/pci/oxygen/cs4245.h b/sound/pci/oxygen/cs4245.h
index 99098657695a..bb9f2c5b5819 100644
--- a/sound/pci/oxygen/cs4245.h
+++ b/sound/pci/oxygen/cs4245.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define CS4245_CHIP_ID		0x01
 #define CS4245_POWER_CTRL	0x02
 #define CS4245_DAC_CTRL_1	0x03
diff --git a/sound/pci/oxygen/cs4362a.h b/sound/pci/oxygen/cs4362a.h
index 6a4fedf5e1ec..1aef15e04dfb 100644
--- a/sound/pci/oxygen/cs4362a.h
+++ b/sound/pci/oxygen/cs4362a.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* register 01h */
 #define CS4362A_PDN		0x01
 #define CS4362A_DAC1_DIS	0x02
diff --git a/sound/pci/oxygen/cs4398.h b/sound/pci/oxygen/cs4398.h
index 5faf5efc8826..76cb9d7af0d7 100644
--- a/sound/pci/oxygen/cs4398.h
+++ b/sound/pci/oxygen/cs4398.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* register 1 */
 #define CS4398_REV_MASK		0x07
 #define CS4398_PART_MASK	0xf8
diff --git a/sound/pci/oxygen/oxygen.h b/sound/pci/oxygen/oxygen.h
index 293d0b9a50c3..06bf7e5744d0 100644
--- a/sound/pci/oxygen/oxygen.h
+++ b/sound/pci/oxygen/oxygen.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef OXYGEN_H_INCLUDED
 #define OXYGEN_H_INCLUDED
 
diff --git a/sound/pci/oxygen/oxygen_regs.h b/sound/pci/oxygen/oxygen_regs.h
index 8c191badaae8..eca9d943f5c7 100644
--- a/sound/pci/oxygen/oxygen_regs.h
+++ b/sound/pci/oxygen/oxygen_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef OXYGEN_REGS_H_INCLUDED
 #define OXYGEN_REGS_H_INCLUDED
 
diff --git a/sound/pci/oxygen/pcm1796.h b/sound/pci/oxygen/pcm1796.h
index 698bf46c710c..34d07dd2d22e 100644
--- a/sound/pci/oxygen/pcm1796.h
+++ b/sound/pci/oxygen/pcm1796.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PCM1796_H_INCLUDED
 #define PCM1796_H_INCLUDED
 
diff --git a/sound/pci/oxygen/wm8766.h b/sound/pci/oxygen/wm8766.h
index e0e849a7eaeb..be83ad49dbb1 100644
--- a/sound/pci/oxygen/wm8766.h
+++ b/sound/pci/oxygen/wm8766.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef WM8766_H_INCLUDED
 #define WM8766_H_INCLUDED
 
diff --git a/sound/pci/oxygen/wm8785.h b/sound/pci/oxygen/wm8785.h
index 8c23e315ae66..21b932566598 100644
--- a/sound/pci/oxygen/wm8785.h
+++ b/sound/pci/oxygen/wm8785.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef WM8785_H_INCLUDED
 #define WM8785_H_INCLUDED
 
diff --git a/sound/pci/oxygen/xonar.h b/sound/pci/oxygen/xonar.h
index 0434c207e811..3e373880c187 100644
--- a/sound/pci/oxygen/xonar.h
+++ b/sound/pci/oxygen/xonar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef XONAR_H_INCLUDED
 #define XONAR_H_INCLUDED
 
diff --git a/sound/pci/oxygen/xonar_dg.h b/sound/pci/oxygen/xonar_dg.h
index d461df357aa1..7a1e8f9c48e7 100644
--- a/sound/pci/oxygen/xonar_dg.h
+++ b/sound/pci/oxygen/xonar_dg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef XONAR_DG_H_INCLUDED
 #define XONAR_DG_H_INCLUDED
 
diff --git a/sound/pci/rme9652/Makefile b/sound/pci/rme9652/Makefile
index dcba56040205..a3351447ddc0 100644
--- a/sound/pci/rme9652/Makefile
+++ b/sound/pci/rme9652/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/ppc/tumbler_volume.h b/sound/ppc/tumbler_volume.h
index ef8d85d58b02..549ec6a31a98 100644
--- a/sound/ppc/tumbler_volume.h
+++ b/sound/ppc/tumbler_volume.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* volume tables, taken from TAS3001c data manual */
 /* volume gain values */
 /* 0 = -70 dB, 175 = 18.0 dB in 0.5 dB step */
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index 39c27a58158d..bf8c1e2ce0bf 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-cache.o soc-utils.o
 snd-soc-core-objs += soc-pcm.o soc-io.o soc-devres.o soc-ops.o
 snd-soc-core-$(CONFIG_SND_SOC_COMPRESS) += soc-compress.o
diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h
index 330832ef4e5e..9d338216c5ae 100644
--- a/sound/soc/amd/acp.h
+++ b/sound/soc/amd/acp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ACP_HW_H
 #define __ACP_HW_H
 
diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile
index 67e10cbd4ed7..4440646416e8 100644
--- a/sound/soc/atmel/Makefile
+++ b/sound/soc/atmel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # AT91 Platform Support
 snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
 snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
diff --git a/sound/soc/atmel/atmel-classd.h b/sound/soc/atmel/atmel-classd.h
index 73f8fdd1ca83..0f2e25aeb458 100644
--- a/sound/soc/atmel/atmel-classd.h
+++ b/sound/soc/atmel/atmel-classd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATMEL_CLASSD_H_
 #define __ATMEL_CLASSD_H_
 
diff --git a/sound/soc/atmel/atmel-pdmic.h b/sound/soc/atmel/atmel-pdmic.h
index 4527ac741919..1dd35187102c 100644
--- a/sound/soc/atmel/atmel-pdmic.h
+++ b/sound/soc/atmel/atmel-pdmic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ATMEL_PDMIC_H_
 #define __ATMEL_PDMIC_H_
 
diff --git a/sound/soc/au1x/Makefile b/sound/soc/au1x/Makefile
index 920710514ea0..33183d7fe057 100644
--- a/sound/soc/au1x/Makefile
+++ b/sound/soc/au1x/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Au1200/Au1550 PSC audio
 snd-soc-au1xpsc-dbdma-objs := dbdma2.o
 snd-soc-au1xpsc-i2s-objs := psc-i2s.o
diff --git a/sound/soc/blackfin/Makefile b/sound/soc/blackfin/Makefile
index f21e948b2e9b..ebeb6a9cedd2 100644
--- a/sound/soc/blackfin/Makefile
+++ b/sound/soc/blackfin/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Blackfin Platform Support
 snd-bf5xx-ac97-objs := bf5xx-ac97-pcm.o
 snd-bf5xx-i2s-objs := bf5xx-i2s-pcm.o
diff --git a/sound/soc/cirrus/Makefile b/sound/soc/cirrus/Makefile
index 5514146cbdf0..bfb8dc409f53 100644
--- a/sound/soc/cirrus/Makefile
+++ b/sound/soc/cirrus/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # EP93xx Platform Support
 snd-soc-ep93xx-objs				:= ep93xx-pcm.o
 snd-soc-ep93xx-i2s-objs	 			:= ep93xx-i2s.o
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 77c18189c9ad..05018b7ca72b 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-88pm860x-objs := 88pm860x-codec.o
 snd-soc-ab8500-codec-objs := ab8500-codec.o
 snd-soc-ac97-objs := ac97.o
diff --git a/sound/soc/codecs/adau-utils.h b/sound/soc/codecs/adau-utils.h
index 939b5f37762f..bf5947b35390 100644
--- a/sound/soc/codecs/adau-utils.h
+++ b/sound/soc/codecs/adau-utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SOUND_SOC_CODECS_ADAU_PLL_H
 #define SOUND_SOC_CODECS_ADAU_PLL_H
 
diff --git a/sound/soc/codecs/adau1373.h b/sound/soc/codecs/adau1373.h
index c6ab5530760c..56320d5e32d8 100644
--- a/sound/soc/codecs/adau1373.h
+++ b/sound/soc/codecs/adau1373.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ADAU1373_H__
 #define __ADAU1373_H__
 
diff --git a/sound/soc/codecs/adau17x1.c b/sound/soc/codecs/adau17x1.c
index 2c1bd2763864..6758f789b712 100644
--- a/sound/soc/codecs/adau17x1.c
+++ b/sound/soc/codecs/adau17x1.c
@@ -90,6 +90,27 @@ static int adau17x1_pll_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
+static int adau17x1_adc_fixup(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
+	struct adau *adau = snd_soc_codec_get_drvdata(codec);
+
+	/*
+	 * If we are capturing, toggle the ADOSR bit in Converter Control 0 to
+	 * avoid losing SNR (workaround from ADI). This must be done after
+	 * the ADC(s) have been enabled. According to the data sheet, it is
+	 * normally illegal to set this bit when the sampling rate is 96 kHz,
+	 * but according to ADI it is acceptable for this workaround.
+	 */
+	regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
+		ADAU17X1_CONVERTER0_ADOSR, ADAU17X1_CONVERTER0_ADOSR);
+	regmap_update_bits(adau->regmap, ADAU17X1_CONVERTER0,
+		ADAU17X1_CONVERTER0_ADOSR, 0);
+
+	return 0;
+}
+
 static const char * const adau17x1_mono_stereo_text[] = {
 	"Stereo",
 	"Mono Left Channel (L+R)",
@@ -121,7 +142,8 @@ static const struct snd_soc_dapm_widget adau17x1_dapm_widgets[] = {
 	SND_SOC_DAPM_MUX("Right DAC Mode Mux", SND_SOC_NOPM, 0, 0,
 		&adau17x1_dac_mode_mux),
 
-	SND_SOC_DAPM_ADC("Left Decimator", NULL, ADAU17X1_ADC_CONTROL, 0, 0),
+	SND_SOC_DAPM_ADC_E("Left Decimator", NULL, ADAU17X1_ADC_CONTROL, 0, 0,
+			   adau17x1_adc_fixup, SND_SOC_DAPM_POST_PMU),
 	SND_SOC_DAPM_ADC("Right Decimator", NULL, ADAU17X1_ADC_CONTROL, 1, 0),
 	SND_SOC_DAPM_DAC("Left DAC", NULL, ADAU17X1_DAC_CONTROL0, 0, 0),
 	SND_SOC_DAPM_DAC("Right DAC", NULL, ADAU17X1_DAC_CONTROL0, 1, 0),
diff --git a/sound/soc/codecs/adau17x1.h b/sound/soc/codecs/adau17x1.h
index bf04b7efee40..eaf8f933bab8 100644
--- a/sound/soc/codecs/adau17x1.h
+++ b/sound/soc/codecs/adau17x1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ADAU17X1_H__
 #define __ADAU17X1_H__
 
@@ -129,5 +130,7 @@ bool adau17x1_has_dsp(struct adau *adau);
 
 #define ADAU17X1_CONVERTER0_CONVSR_MASK		0x7
 
+#define ADAU17X1_CONVERTER0_ADOSR		BIT(3)
+
 
 #endif
diff --git a/sound/soc/codecs/cs4271.h b/sound/soc/codecs/cs4271.h
index 9adad8eefdc9..290283a9149e 100644
--- a/sound/soc/codecs/cs4271.h
+++ b/sound/soc/codecs/cs4271.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _CS4271_PRIV_H
 #define _CS4271_PRIV_H
 
diff --git a/sound/soc/codecs/es8328.h b/sound/soc/codecs/es8328.h
index 8930322d712b..9109f6b5b045 100644
--- a/sound/soc/codecs/es8328.h
+++ b/sound/soc/codecs/es8328.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * es8328.h  --  ES8328 ALSA SoC Audio driver
  */
diff --git a/sound/soc/codecs/hdac_hdmi.h b/sound/soc/codecs/hdac_hdmi.h
index dfc3a9cf7199..b5b57a5cbbfd 100644
--- a/sound/soc/codecs/hdac_hdmi.h
+++ b/sound/soc/codecs/hdac_hdmi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __HDAC_HDMI_H__
 #define __HDAC_HDMI_H__
 
diff --git a/sound/soc/codecs/inno_rk3036.h b/sound/soc/codecs/inno_rk3036.h
index da759c6c7501..44bb2404198d 100644
--- a/sound/soc/codecs/inno_rk3036.h
+++ b/sound/soc/codecs/inno_rk3036.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Driver of Inno Codec for rk3036 by Rockchip Inc.
  *
diff --git a/sound/soc/codecs/rt5514-spi.c b/sound/soc/codecs/rt5514-spi.c
index ed6e5373916c..12f2ecf3a4fe 100644
--- a/sound/soc/codecs/rt5514-spi.c
+++ b/sound/soc/codecs/rt5514-spi.c
@@ -145,9 +145,8 @@ done:
 	mutex_unlock(&rt5514_dsp->dma_lock);
 }
 
-static irqreturn_t rt5514_spi_irq(int irq, void *data)
+static void rt5514_schedule_copy(struct rt5514_dsp *rt5514_dsp)
 {
-	struct rt5514_dsp *rt5514_dsp = data;
 	u8 buf[8];
 
 	rt5514_dsp->get_size = 0;
@@ -180,6 +179,13 @@ static irqreturn_t rt5514_spi_irq(int irq, void *data)
 	if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit &&
 		rt5514_dsp->buf_rp && rt5514_dsp->buf_size)
 		schedule_delayed_work(&rt5514_dsp->copy_work, 0);
+}
+
+static irqreturn_t rt5514_spi_irq(int irq, void *data)
+{
+	struct rt5514_dsp *rt5514_dsp = data;
+
+	rt5514_schedule_copy(rt5514_dsp);
 
 	return IRQ_HANDLED;
 }
@@ -199,12 +205,19 @@ static int rt5514_spi_hw_params(struct snd_pcm_substream *substream,
 	struct rt5514_dsp *rt5514_dsp =
 			snd_soc_platform_get_drvdata(rtd->platform);
 	int ret;
+	u8 buf[8];
 
 	mutex_lock(&rt5514_dsp->dma_lock);
 	ret = snd_pcm_lib_alloc_vmalloc_buffer(substream,
 			params_buffer_bytes(hw_params));
 	rt5514_dsp->substream = substream;
 	rt5514_dsp->dma_offset = 0;
+
+	/* Read IRQ status and schedule copy accordingly. */
+	rt5514_spi_burst_read(RT5514_IRQ_CTRL, (u8 *)&buf, sizeof(buf));
+	if (buf[0] & RT5514_IRQ_STATUS_BIT)
+		rt5514_schedule_copy(rt5514_dsp);
+
 	mutex_unlock(&rt5514_dsp->dma_lock);
 
 	return ret;
diff --git a/sound/soc/codecs/rt5514-spi.h b/sound/soc/codecs/rt5514-spi.h
index a6434ee6ff03..c1a36647c119 100644
--- a/sound/soc/codecs/rt5514-spi.h
+++ b/sound/soc/codecs/rt5514-spi.h
@@ -20,6 +20,9 @@
 #define RT5514_BUFFER_VOICE_BASE	0x18000200
 #define RT5514_BUFFER_VOICE_LIMIT	0x18000204
 #define RT5514_BUFFER_VOICE_WP		0x1800020c
+#define RT5514_IRQ_CTRL			0x18002094
+
+#define RT5514_IRQ_STATUS_BIT		(0x1 << 5)
 
 /* SPI Command */
 enum {
diff --git a/sound/soc/codecs/rt5514.c b/sound/soc/codecs/rt5514.c
index 0945d212b8dc..d7956ababd11 100644
--- a/sound/soc/codecs/rt5514.c
+++ b/sound/soc/codecs/rt5514.c
@@ -338,39 +338,6 @@ static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
 				fw = NULL;
 			}
 
-			if (rt5514->model_buf && rt5514->model_len) {
-#if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
-				int ret;
-
-				ret = rt5514_spi_burst_write(0x4ff80000,
-					rt5514->model_buf,
-					((rt5514->model_len / 8) + 1) * 8);
-				if (ret) {
-					dev_err(codec->dev,
-						"Model load failed %d\n", ret);
-					return ret;
-				}
-#else
-				dev_err(codec->dev,
-					"No SPI driver for loading firmware\n");
-#endif
-			} else {
-				request_firmware(&fw, RT5514_FIRMWARE3,
-						 codec->dev);
-				if (fw) {
-#if IS_ENABLED(CONFIG_SND_SOC_RT5514_SPI)
-					rt5514_spi_burst_write(0x4ff80000,
-						fw->data,
-						((fw->size/8)+1)*8);
-#else
-					dev_err(codec->dev,
-						"No SPI driver to load fw\n");
-#endif
-					release_firmware(fw);
-					fw = NULL;
-				}
-			}
-
 			/* DSP run */
 			regmap_write(rt5514->i2c_regmap, 0x18002f00,
 				0x00055148);
@@ -385,34 +352,6 @@ static int rt5514_dsp_voice_wake_up_put(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static int rt5514_hotword_model_put(struct snd_kcontrol *kcontrol,
-		const unsigned int __user *bytes, unsigned int size)
-{
-	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
-	struct rt5514_priv *rt5514 = snd_soc_component_get_drvdata(component);
-	struct snd_soc_codec *codec = rt5514->codec;
-	int ret = 0;
-
-	if (rt5514->model_buf || rt5514->model_len < size) {
-		if (rt5514->model_buf)
-			devm_kfree(codec->dev, rt5514->model_buf);
-		rt5514->model_buf = devm_kmalloc(codec->dev, size, GFP_KERNEL);
-		if (!rt5514->model_buf) {
-			ret = -ENOMEM;
-			goto done;
-		}
-	}
-
-	/* Skips the TLV header. */
-	bytes += 2;
-
-	if (copy_from_user(rt5514->model_buf, bytes, size))
-		ret = -EFAULT;
-done:
-	rt5514->model_len = (ret ? 0 : size);
-	return ret;
-}
-
 static const struct snd_kcontrol_new rt5514_snd_controls[] = {
 	SOC_DOUBLE_TLV("MIC Boost Volume", RT5514_ANA_CTRL_MICBST,
 		RT5514_SEL_BSTL_SFT, RT5514_SEL_BSTR_SFT, 8, 0, bst_tlv),
@@ -424,8 +363,6 @@ static const struct snd_kcontrol_new rt5514_snd_controls[] = {
 		adc_vol_tlv),
 	SOC_SINGLE_EXT("DSP Voice Wake Up", SND_SOC_NOPM, 0, 1, 0,
 		rt5514_dsp_voice_wake_up_get, rt5514_dsp_voice_wake_up_put),
-	SND_SOC_BYTES_TLV("Hotword Model", 0x8504,
-		NULL, rt5514_hotword_model_put),
 };
 
 /* ADC Mixer*/
diff --git a/sound/soc/codecs/rt5514.h b/sound/soc/codecs/rt5514.h
index 803311cb7e2a..2dc40e6d8b3f 100644
--- a/sound/soc/codecs/rt5514.h
+++ b/sound/soc/codecs/rt5514.h
@@ -255,7 +255,6 @@
 
 #define RT5514_FIRMWARE1	"rt5514_dsp_fw1.bin"
 #define RT5514_FIRMWARE2	"rt5514_dsp_fw2.bin"
-#define RT5514_FIRMWARE3	"rt5514_dsp_fw3.bin"
 
 /* System Clock Source */
 enum {
@@ -282,8 +281,6 @@ struct rt5514_priv {
 	int pll_in;
 	int pll_out;
 	int dsp_enabled;
-	u8 *model_buf;
-	unsigned int model_len;
 };
 
 #endif /* __RT5514_H__ */
diff --git a/sound/soc/codecs/rt5616.c b/sound/soc/codecs/rt5616.c
index c94e94fe8297..0e5f54a9bc7e 100644
--- a/sound/soc/codecs/rt5616.c
+++ b/sound/soc/codecs/rt5616.c
@@ -98,7 +98,7 @@ static const struct reg_default rt5616_reg[] = {
 	{ 0x8e, 0x0004 },
 	{ 0x8f, 0x1100 },
 	{ 0x90, 0x0000 },
-	{ 0x91, 0x0000 },
+	{ 0x91, 0x0c00 },
 	{ 0x92, 0x0000 },
 	{ 0x93, 0x2000 },
 	{ 0x94, 0x0200 },
diff --git a/sound/soc/codecs/rt5631.h b/sound/soc/codecs/rt5631.h
index 13401581b0df..8a6b99a48c7c 100644
--- a/sound/soc/codecs/rt5631.h
+++ b/sound/soc/codecs/rt5631.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __RTCODEC5631_H__
 #define __RTCODEC5631_H__
 
diff --git a/sound/soc/codecs/rt5645.c b/sound/soc/codecs/rt5645.c
index 6a7778a44853..a98647ac497c 100644
--- a/sound/soc/codecs/rt5645.c
+++ b/sound/soc/codecs/rt5645.c
@@ -3600,7 +3600,7 @@ static const struct rt5645_platform_data buddy_platform_data = {
 	.level_trigger_irq = true,
 };
 
-static struct dmi_system_id dmi_platform_intel_broadwell[] = {
+static const struct dmi_system_id dmi_platform_intel_broadwell[] = {
 	{
 		.ident = "Chrome Buddy",
 		.matches = {
diff --git a/sound/soc/codecs/rt5659.c b/sound/soc/codecs/rt5659.c
index 71216db15eab..fa66b11df8d4 100644
--- a/sound/soc/codecs/rt5659.c
+++ b/sound/soc/codecs/rt5659.c
@@ -2744,7 +2744,8 @@ static const struct snd_soc_dapm_widget rt5659_dapm_widgets[] = {
 		SND_SOC_DAPM_PRE_PMU),
 	SND_SOC_DAPM_PGA_S("HP Amp", 1, SND_SOC_NOPM, 0, 0, rt5659_hp_event,
 		SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
-	SND_SOC_DAPM_PGA("LOUT Amp", SND_SOC_NOPM, 0, 0, NULL, 0),
+	SND_SOC_DAPM_PGA_S("LOUT Amp", 1,  RT5659_PWR_ANLG_1, RT5659_PWR_LM_BIT,
+		0,  NULL, 0),
 
 	SND_SOC_DAPM_SUPPLY("Charge Pump", SND_SOC_NOPM, 0, 0,
 		rt5659_charge_pump_event, SND_SOC_DAPM_PRE_PMU |
@@ -3208,6 +3209,7 @@ static const struct snd_soc_dapm_route rt5659_dapm_routes[] = {
 	{ "LOUT R MIX", "OUTVOL R Switch", "OUTVOL R" },
 	{ "LOUT Amp", NULL, "LOUT L MIX" },
 	{ "LOUT Amp", NULL, "LOUT R MIX" },
+	{ "LOUT Amp", NULL, "Charge Pump" },
 	{ "LOUT Amp", NULL, "SYS CLK DET" },
 	{ "LOUT L Playback", "Switch", "LOUT Amp" },
 	{ "LOUT R Playback", "Switch", "LOUT Amp" },
diff --git a/sound/soc/codecs/rt5663.c b/sound/soc/codecs/rt5663.c
index ab9e0ebff5a7..e45b895d8279 100644
--- a/sound/soc/codecs/rt5663.c
+++ b/sound/soc/codecs/rt5663.c
@@ -1639,7 +1639,8 @@ static irqreturn_t rt5663_irq(int irq, void *data)
 {
 	struct rt5663_priv *rt5663 = data;
 
-	dev_dbg(rt5663->codec->dev, "%s IRQ queue work\n", __func__);
+	dev_dbg(regmap_get_device(rt5663->regmap), "%s IRQ queue work\n",
+		__func__);
 
 	queue_delayed_work(system_wq, &rt5663->jack_detect_work,
 		msecs_to_jiffies(250));
diff --git a/sound/soc/codecs/tlv320aic26.h b/sound/soc/codecs/tlv320aic26.h
index 629b85e75409..1f2879b7a080 100644
--- a/sound/soc/codecs/tlv320aic26.h
+++ b/sound/soc/codecs/tlv320aic26.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Texas Instruments TLV320AIC26 low power audio CODEC
  * register definitions
diff --git a/sound/soc/codecs/uda134x.h b/sound/soc/codecs/uda134x.h
index e41ab38c6f69..664618c2571c 100644
--- a/sound/soc/codecs/uda134x.h
+++ b/sound/soc/codecs/uda134x.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UDA134X_CODEC_H
 #define _UDA134X_CODEC_H
 
diff --git a/sound/soc/codecs/wm8993.h b/sound/soc/codecs/wm8993.h
index 4478b40c86e3..91811aa158d8 100644
--- a/sound/soc/codecs/wm8993.h
+++ b/sound/soc/codecs/wm8993.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef WM8993_H
 #define WM8993_H
 
diff --git a/sound/soc/codecs/wm9713.h b/sound/soc/codecs/wm9713.h
index 7ecffc563016..f0800dcca9b8 100644
--- a/sound/soc/codecs/wm9713.h
+++ b/sound/soc/codecs/wm9713.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * wm9713.h  --  WM9713 Soc Audio driver
  */
diff --git a/sound/soc/davinci/Makefile b/sound/soc/davinci/Makefile
index f883933c1a19..23c6592eb31a 100644
--- a/sound/soc/davinci/Makefile
+++ b/sound/soc/davinci/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # DAVINCI Platform Support
 snd-soc-edma-objs := edma-pcm.o
 snd-soc-davinci-i2s-objs := davinci-i2s.o
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
index d28dc25c9375..c67bf1139e1e 100644
--- a/sound/soc/fsl/Makefile
+++ b/sound/soc/fsl/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # MPC8610 HPCD Machine Support
 snd-soc-mpc8610-hpcd-objs := mpc8610_hpcd.o
 obj-$(CONFIG_SND_SOC_MPC8610_HPCD) += snd-soc-mpc8610-hpcd.o
diff --git a/sound/soc/fsl/imx-audmux.h b/sound/soc/fsl/imx-audmux.h
index 38a4209af7c6..f75b4d3aeacc 100644
--- a/sound/soc/fsl/imx-audmux.h
+++ b/sound/soc/fsl/imx-audmux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __IMX_AUDMUX_H
 #define __IMX_AUDMUX_H
 
diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h
index dff253fde29a..d7ee33b5b9a8 100644
--- a/sound/soc/fsl/mpc5200_dma.h
+++ b/sound/soc/fsl/mpc5200_dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Freescale MPC5200 Audio DMA driver
  */
diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile
index 9e000523a3b4..9dec293a4c4d 100644
--- a/sound/soc/generic/Makefile
+++ b/sound/soc/generic/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-simple-card-utils-objs	:= simple-card-utils.o
 snd-soc-simple-card-objs	:= simple-card.o
 snd-soc-simple-scu-card-objs	:= simple-scu-card.o
diff --git a/sound/soc/img/Makefile b/sound/soc/img/Makefile
index 0508c1ced636..3e7b0fd4fcbf 100644
--- a/sound/soc/img/Makefile
+++ b/sound/soc/img/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SND_SOC_IMG_I2S_IN) += img-i2s-in.o
 obj-$(CONFIG_SND_SOC_IMG_I2S_OUT) += img-i2s-out.o
 obj-$(CONFIG_SND_SOC_IMG_PARALLEL_OUT) += img-parallel-out.o
diff --git a/sound/soc/intel/Makefile b/sound/soc/intel/Makefile
index cdd495f7ee2c..62f37ffffdf0 100644
--- a/sound/soc/intel/Makefile
+++ b/sound/soc/intel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Core support
 obj-$(CONFIG_SND_SOC_INTEL_SST) += common/
 
diff --git a/sound/soc/intel/atom/Makefile b/sound/soc/intel/atom/Makefile
index aa6548c6feab..1dc60471b399 100644
--- a/sound/soc/intel/atom/Makefile
+++ b/sound/soc/intel/atom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-sst-atom-hifi2-platform-objs :=	sst-mfld-platform-pcm.o \
 					sst-mfld-platform-compress.o \
 					sst-atom-controls.o
diff --git a/sound/soc/intel/atom/sst/Makefile b/sound/soc/intel/atom/sst/Makefile
index fd21726361b5..795d1cf8f386 100644
--- a/sound/soc/intel/atom/sst/Makefile
+++ b/sound/soc/intel/atom/sst/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-intel-sst-core-objs := sst.o sst_ipc.o sst_stream.o sst_drv_interface.o sst_loader.o sst_pvt.o
 snd-intel-sst-pci-objs += sst_pci.o
 snd-intel-sst-acpi-objs += sst_acpi.o
diff --git a/sound/soc/intel/boards/Makefile b/sound/soc/intel/boards/Makefile
index a5c5bc5732a2..69d2dfaeb00c 100644
--- a/sound/soc/intel/boards/Makefile
+++ b/sound/soc/intel/boards/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-sst-haswell-objs := haswell.o
 snd-soc-sst-byt-rt5640-mach-objs := byt-rt5640.o
 snd-soc-sst-byt-max98090-mach-objs := byt-max98090.o
diff --git a/sound/soc/intel/common/Makefile b/sound/soc/intel/common/Makefile
index 1a35149bcad7..0e029f354f6b 100644
--- a/sound/soc/intel/common/Makefile
+++ b/sound/soc/intel/common/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-sst-dsp-objs := sst-dsp.o
 snd-soc-sst-acpi-objs := sst-acpi.o
 snd-soc-sst-match-objs := sst-match-acpi.o
diff --git a/sound/soc/intel/skylake/Makefile b/sound/soc/intel/skylake/Makefile
index 3380deb81015..d1ccbecd141f 100644
--- a/sound/soc/intel/skylake/Makefile
+++ b/sound/soc/intel/skylake/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-skl-objs := skl.o skl-pcm.o skl-nhlt.o skl-messages.o \
 skl-topology.o
 
diff --git a/sound/soc/mediatek/mt8173/Makefile b/sound/soc/mediatek/mt8173/Makefile
index 0357b27d29f2..c1eed0d2653b 100644
--- a/sound/soc/mediatek/mt8173/Makefile
+++ b/sound/soc/mediatek/mt8173/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # MTK Platform Support
 obj-$(CONFIG_SND_SOC_MT8173) += mt8173-afe-pcm.o
 # Machine support
diff --git a/sound/soc/mxs/Makefile b/sound/soc/mxs/Makefile
index 565b5b51e8b7..ab0a9a553702 100644
--- a/sound/soc/mxs/Makefile
+++ b/sound/soc/mxs/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # MXS Platform Support
 snd-soc-mxs-objs := mxs-saif.o
 snd-soc-mxs-pcm-objs := mxs-pcm.o
diff --git a/sound/soc/nuc900/Makefile b/sound/soc/nuc900/Makefile
index 7e46c7150316..c7ba2b9549d2 100644
--- a/sound/soc/nuc900/Makefile
+++ b/sound/soc/nuc900/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # NUC900 series audio
 snd-soc-nuc900-pcm-objs := nuc900-pcm.o
 snd-soc-nuc900-ac97-objs := nuc900-ac97.o
diff --git a/sound/soc/omap/Makefile b/sound/soc/omap/Makefile
index db36fbd5d1a0..a6785dc4fc90 100644
--- a/sound/soc/omap/Makefile
+++ b/sound/soc/omap/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # OMAP Platform Support
 snd-soc-omap-objs := omap-pcm.o
 snd-soc-omap-dmic-objs := omap-dmic.o
diff --git a/sound/soc/pxa/Makefile b/sound/soc/pxa/Makefile
index 2cff67b61dc3..5b265662f04f 100644
--- a/sound/soc/pxa/Makefile
+++ b/sound/soc/pxa/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # PXA Platform Support
 snd-soc-pxa2xx-objs := pxa2xx-pcm.o
 snd-soc-pxa2xx-ac97-objs := pxa2xx-ac97.o
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index 79e5c50a8f71..d5280355c24f 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Platform
 snd-soc-lpass-cpu-objs := lpass-cpu.o
 snd-soc-lpass-platform-objs := lpass-platform.o
diff --git a/sound/soc/rockchip/Makefile b/sound/soc/rockchip/Makefile
index 105f0e14a4ab..05b078e7b87f 100644
--- a/sound/soc/rockchip/Makefile
+++ b/sound/soc/rockchip/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # ROCKCHIP Platform Support
 snd-soc-rockchip-i2s-objs := rockchip_i2s.o
 snd-soc-rockchip-pdm-objs := rockchip_pdm.o
diff --git a/sound/soc/samsung/Makefile b/sound/soc/samsung/Makefile
index b6c2ee358333..030949e1e434 100644
--- a/sound/soc/samsung/Makefile
+++ b/sound/soc/samsung/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # S3c24XX Platform Support
 snd-soc-s3c-dma-objs := dmaengine.o
 snd-soc-idma-objs := idma.o
diff --git a/sound/soc/sh/Makefile b/sound/soc/sh/Makefile
index aaf3dcd1ee2a..51bd7c81671c 100644
--- a/sound/soc/sh/Makefile
+++ b/sound/soc/sh/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ## DMA engines
 snd-soc-dma-sh7760-objs	:= dma-sh7760.o
 obj-$(CONFIG_SND_SOC_PCM_SH7760)	+= snd-soc-dma-sh7760.o
diff --git a/sound/soc/sirf/Makefile b/sound/soc/sirf/Makefile
index dd917f20f12f..16ed11965ff9 100644
--- a/sound/soc/sirf/Makefile
+++ b/sound/soc/sirf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-soc-sirf-audio-objs := sirf-audio.o
 snd-soc-sirf-audio-port-objs := sirf-audio-port.o
 snd-soc-sirf-usp-objs := sirf-usp.o
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index dd471d2c0266..01a50413c66f 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1301,7 +1301,7 @@ static struct snd_kcontrol_new *soc_tplg_dapm_widget_denum_create(
 		/* validate kcontrol */
 		if (strnlen(ec->hdr.name, SNDRV_CTL_ELEM_ID_NAME_MAXLEN) ==
 			    SNDRV_CTL_ELEM_ID_NAME_MAXLEN)
-			return NULL;
+			goto err;
 
 		se = kzalloc(sizeof(*se), GFP_KERNEL);
 		if (se == NULL)
@@ -1378,6 +1378,9 @@ err_se:
 	for (; i >= 0; i--) {
 		/* free values and texts */
 		se = (struct soc_enum *)kc[i].private_value;
+		if (!se)
+			continue;
+
 		kfree(se->dobj.control.dvalues);
 		for (j = 0; j < ec->items; j++)
 			kfree(se->dobj.control.dtexts[j]);
diff --git a/sound/soc/spear/Makefile b/sound/soc/spear/Makefile
index c4ea7161056c..31d9dae280e7 100644
--- a/sound/soc/spear/Makefile
+++ b/sound/soc/spear/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # SPEAR Platform Support
 snd-soc-spear-pcm-objs := spear_pcm.o
 snd-soc-spear-spdif-in-objs := spdif_in.o
diff --git a/sound/soc/stm/Makefile b/sound/soc/stm/Makefile
index 4ed22e648a9a..5b7f0fab0bd6 100644
--- a/sound/soc/stm/Makefile
+++ b/sound/soc/stm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # SAI
 snd-soc-stm32-sai-sub-objs := stm32_sai_sub.o
 obj-$(CONFIG_SND_SOC_STM32_SAI) += snd-soc-stm32-sai-sub.o
diff --git a/sound/soc/sunxi/Makefile b/sound/soc/sunxi/Makefile
index 1f1af6271731..4a9ef67386ca 100644
--- a/sound/soc/sunxi/Makefile
+++ b/sound/soc/sunxi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-$(CONFIG_SND_SUN4I_CODEC) += sun4i-codec.o
 obj-$(CONFIG_SND_SUN4I_I2S) += sun4i-i2s.o
 obj-$(CONFIG_SND_SUN4I_SPDIF) += sun4i-spdif.o
diff --git a/sound/soc/tegra/Makefile b/sound/soc/tegra/Makefile
index f214a3fd0024..2329b72c93e3 100644
--- a/sound/soc/tegra/Makefile
+++ b/sound/soc/tegra/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Tegra platform Support
 snd-soc-tegra-pcm-objs := tegra_pcm.o
 snd-soc-tegra-utils-objs += tegra_asoc_utils.o
diff --git a/sound/soc/txx9/Makefile b/sound/soc/txx9/Makefile
index 551f16c0c4f9..37ad833eb329 100644
--- a/sound/soc/txx9/Makefile
+++ b/sound/soc/txx9/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Platform
 snd-soc-txx9aclc-objs := txx9aclc.o
 snd-soc-txx9aclc-ac97-objs := txx9aclc-ac97.o
diff --git a/sound/soc/ux500/Makefile b/sound/soc/ux500/Makefile
index cce0c11a4d86..e7d6de51b32b 100644
--- a/sound/soc/ux500/Makefile
+++ b/sound/soc/ux500/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Ux500 Platform Support
 
 snd-soc-ux500-plat-msp-i2s-objs := ux500_msp_dai.o ux500_msp_i2s.o
diff --git a/sound/soc/xtensa/xtfpga-i2s.c b/sound/soc/xtensa/xtfpga-i2s.c
index 8382ffa3bcaf..2472144b329e 100644
--- a/sound/soc/xtensa/xtfpga-i2s.c
+++ b/sound/soc/xtensa/xtfpga-i2s.c
@@ -165,7 +165,7 @@ static bool xtfpga_pcm_push_tx(struct xtfpga_i2s *i2s)
 	tx_substream = rcu_dereference(i2s->tx_substream);
 	tx_active = tx_substream && snd_pcm_running(tx_substream);
 	if (tx_active) {
-		unsigned tx_ptr = ACCESS_ONCE(i2s->tx_ptr);
+		unsigned tx_ptr = READ_ONCE(i2s->tx_ptr);
 		unsigned new_tx_ptr = i2s->tx_fn(i2s, tx_substream->runtime,
 						 tx_ptr);
 
@@ -437,7 +437,7 @@ static int xtfpga_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		ACCESS_ONCE(i2s->tx_ptr) = 0;
+		WRITE_ONCE(i2s->tx_ptr, 0);
 		rcu_assign_pointer(i2s->tx_substream, substream);
 		xtfpga_pcm_refill_fifo(i2s);
 		break;
@@ -459,7 +459,7 @@ static snd_pcm_uframes_t xtfpga_pcm_pointer(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct xtfpga_i2s *i2s = runtime->private_data;
-	snd_pcm_uframes_t pos = ACCESS_ONCE(i2s->tx_ptr);
+	snd_pcm_uframes_t pos = READ_ONCE(i2s->tx_ptr);
 
 	return pos < runtime->buffer_size ? pos : 0;
 }
diff --git a/sound/sparc/Makefile b/sound/sparc/Makefile
index 3cd89c67c2f2..e1f596571d7f 100644
--- a/sound/sparc/Makefile
+++ b/sound/sparc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2002 by David S. Miller <davem@redhat.com>
diff --git a/sound/spi/Makefile b/sound/spi/Makefile
index 026fb73f887f..a3834919b0f6 100644
--- a/sound/spi/Makefile
+++ b/sound/spi/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for SPI drivers
 
 snd-at73c213-objs		:= at73c213.o
diff --git a/sound/synth/Makefile b/sound/synth/Makefile
index 11eb06ac2eca..b9f71d5dbc8c 100644
--- a/sound/synth/Makefile
+++ b/sound/synth/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/synth/emux/Makefile b/sound/synth/emux/Makefile
index d1bac923eb1b..ed28c81ac12e 100644
--- a/sound/synth/emux/Makefile
+++ b/sound/synth/emux/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 # Copyright (c) 2001 by Jaroslav Kysela <perex@perex.cz>
diff --git a/sound/usb/Makefile b/sound/usb/Makefile
index 42cb33b94f6a..05440e2df8d9 100644
--- a/sound/usb/Makefile
+++ b/sound/usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Makefile for ALSA
 #
diff --git a/sound/usb/bcd2000/bcd2000.c b/sound/usb/bcd2000/bcd2000.c
index 7371e5b06035..fc579f330601 100644
--- a/sound/usb/bcd2000/bcd2000.c
+++ b/sound/usb/bcd2000/bcd2000.c
@@ -108,7 +108,7 @@ static void bcd2000_midi_handle_input(struct bcd2000 *bcd2k,
 	unsigned int payload_length, tocopy;
 	struct snd_rawmidi_substream *midi_receive_substream;
 
-	midi_receive_substream = ACCESS_ONCE(bcd2k->midi_receive_substream);
+	midi_receive_substream = READ_ONCE(bcd2k->midi_receive_substream);
 	if (!midi_receive_substream)
 		return;
 
@@ -139,7 +139,7 @@ static void bcd2000_midi_send(struct bcd2000 *bcd2k)
 
 	BUILD_BUG_ON(sizeof(device_cmd_prefix) >= BUFSIZE);
 
-	midi_out_substream = ACCESS_ONCE(bcd2k->midi_out_substream);
+	midi_out_substream = READ_ONCE(bcd2k->midi_out_substream);
 	if (!midi_out_substream)
 		return;
 
diff --git a/sound/usb/caiaq/audio.h b/sound/usb/caiaq/audio.h
index bdf155300a8a..869bf6264d6a 100644
--- a/sound/usb/caiaq/audio.h
+++ b/sound/usb/caiaq/audio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CAIAQ_AUDIO_H
 #define CAIAQ_AUDIO_H
 
diff --git a/sound/usb/caiaq/control.h b/sound/usb/caiaq/control.h
index 501c4883aef6..cb204fd45858 100644
--- a/sound/usb/caiaq/control.h
+++ b/sound/usb/caiaq/control.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CAIAQ_CONTROL_H
 #define CAIAQ_CONTROL_H
 
diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index 0fb6b1b79261..d8409d9ae55b 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -469,10 +469,12 @@ static int init_card(struct snd_usb_caiaqdev *cdev)
 
 	err = snd_usb_caiaq_send_command(cdev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);
 	if (err)
-		return err;
+		goto err_kill_urb;
 
-	if (!wait_event_timeout(cdev->ep1_wait_queue, cdev->spec_received, HZ))
-		return -ENODEV;
+	if (!wait_event_timeout(cdev->ep1_wait_queue, cdev->spec_received, HZ)) {
+		err = -ENODEV;
+		goto err_kill_urb;
+	}
 
 	usb_string(usb_dev, usb_dev->descriptor.iManufacturer,
 		   cdev->vendor_name, CAIAQ_USB_STR_LEN);
@@ -507,6 +509,10 @@ static int init_card(struct snd_usb_caiaqdev *cdev)
 
 	setup_card(cdev);
 	return 0;
+
+ err_kill_urb:
+	usb_kill_urb(&cdev->ep1_in_urb);
+	return err;
 }
 
 static int snd_probe(struct usb_interface *intf,
diff --git a/sound/usb/caiaq/device.h b/sound/usb/caiaq/device.h
index ab0f7520a99b..50fea085765b 100644
--- a/sound/usb/caiaq/device.h
+++ b/sound/usb/caiaq/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CAIAQ_DEVICE_H
 #define CAIAQ_DEVICE_H
 
diff --git a/sound/usb/caiaq/input.h b/sound/usb/caiaq/input.h
index 6014e2713a60..c42891e7be88 100644
--- a/sound/usb/caiaq/input.h
+++ b/sound/usb/caiaq/input.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CAIAQ_INPUT_H
 #define CAIAQ_INPUT_H
 
diff --git a/sound/usb/caiaq/midi.h b/sound/usb/caiaq/midi.h
index 60bf3442b283..a6ae0c22484d 100644
--- a/sound/usb/caiaq/midi.h
+++ b/sound/usb/caiaq/midi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef CAIAQ_MIDI_H
 #define CAIAQ_MIDI_H
 
diff --git a/sound/usb/card.c b/sound/usb/card.c
index 3dc36d913550..23d1d23aefec 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -221,6 +221,7 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 	struct usb_interface_descriptor *altsd;
 	void *control_header;
 	int i, protocol;
+	int rest_bytes;
 
 	/* find audiocontrol interface */
 	host_iface = &usb_ifnum_to_if(dev, ctrlif)->altsetting[0];
@@ -235,6 +236,15 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 		return -EINVAL;
 	}
 
+	rest_bytes = (void *)(host_iface->extra + host_iface->extralen) -
+		control_header;
+
+	/* just to be sure -- this shouldn't hit at all */
+	if (rest_bytes <= 0) {
+		dev_err(&dev->dev, "invalid control header\n");
+		return -EINVAL;
+	}
+
 	switch (protocol) {
 	default:
 		dev_warn(&dev->dev,
@@ -245,11 +255,21 @@ static int snd_usb_create_streams(struct snd_usb_audio *chip, int ctrlif)
 	case UAC_VERSION_1: {
 		struct uac1_ac_header_descriptor *h1 = control_header;
 
+		if (rest_bytes < sizeof(*h1)) {
+			dev_err(&dev->dev, "too short v1 buffer descriptor\n");
+			return -EINVAL;
+		}
+
 		if (!h1->bInCollection) {
 			dev_info(&dev->dev, "skipping empty audio interface (v1)\n");
 			return -EINVAL;
 		}
 
+		if (rest_bytes < h1->bLength) {
+			dev_err(&dev->dev, "invalid buffer length (v1)\n");
+			return -EINVAL;
+		}
+
 		if (h1->bLength < sizeof(*h1) + h1->bInCollection) {
 			dev_err(&dev->dev, "invalid UAC_HEADER (v1)\n");
 			return -EINVAL;
diff --git a/sound/usb/card.h b/sound/usb/card.h
index 111b0f009afa..ed87cc83eb47 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_CARD_H
 #define __USBAUDIO_CARD_H
 
diff --git a/sound/usb/clock.h b/sound/usb/clock.h
index d592e4a29856..87557cae1a0b 100644
--- a/sound/usb/clock.h
+++ b/sound/usb/clock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_CLOCK_H
 #define __USBAUDIO_CLOCK_H
 
diff --git a/sound/usb/debug.h b/sound/usb/debug.h
index 58030176f008..7dd983c35001 100644
--- a/sound/usb/debug.h
+++ b/sound/usb/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_DEBUG_H
 #define __USBAUDIO_DEBUG_H
 
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 584f295d7c77..63a39d4fa8d8 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_ENDPOINT_H
 #define __USBAUDIO_ENDPOINT_H
 
diff --git a/sound/usb/format.h b/sound/usb/format.h
index 4b8a01129f24..8c3ff9ce0824 100644
--- a/sound/usb/format.h
+++ b/sound/usb/format.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_FORMAT_H
 #define __USBAUDIO_FORMAT_H
 
diff --git a/sound/usb/helper.h b/sound/usb/helper.h
index 805c300dd004..4463e6d6dcb3 100644
--- a/sound/usb/helper.h
+++ b/sound/usb/helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_HELPER_H
 #define __USBAUDIO_HELPER_H
 
diff --git a/sound/usb/line6/Makefile b/sound/usb/line6/Makefile
index b8b3b2a543d8..4ba98eb32119 100644
--- a/sound/usb/line6/Makefile
+++ b/sound/usb/line6/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-usb-line6-y := 		\
 		capture.o	\
 		driver.o	\
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index 0ff5a7d2e19f..c8f723c3a033 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -779,9 +779,10 @@ int line6_probe(struct usb_interface *interface,
 	return 0;
 
  error:
-	if (line6->disconnect)
-		line6->disconnect(line6);
-	snd_card_free(card);
+	/* we can call disconnect callback here because no close-sync is
+	 * needed yet at this point
+	 */
+	line6_disconnect(interface);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(line6_probe);
diff --git a/sound/usb/line6/podhd.c b/sound/usb/line6/podhd.c
index 956f847a96e4..451007c27743 100644
--- a/sound/usb/line6/podhd.c
+++ b/sound/usb/line6/podhd.c
@@ -301,7 +301,8 @@ static void podhd_disconnect(struct usb_line6 *line6)
 
 		intf = usb_ifnum_to_if(line6->usbdev,
 					pod->line6.properties->ctrl_if);
-		usb_driver_release_interface(&podhd_driver, intf);
+		if (intf)
+			usb_driver_release_interface(&podhd_driver, intf);
 	}
 }
 
@@ -317,6 +318,9 @@ static int podhd_init(struct usb_line6 *line6,
 
 	line6->disconnect = podhd_disconnect;
 
+	init_timer(&pod->startup_timer);
+	INIT_WORK(&pod->startup_work, podhd_startup_workqueue);
+
 	if (pod->line6.properties->capabilities & LINE6_CAP_CONTROL) {
 		/* claim the data interface */
 		intf = usb_ifnum_to_if(line6->usbdev,
@@ -358,8 +362,6 @@ static int podhd_init(struct usb_line6 *line6,
 	}
 
 	/* init device and delay registering */
-	init_timer(&pod->startup_timer);
-	INIT_WORK(&pod->startup_work, podhd_startup_workqueue);
 	podhd_startup(pod);
 	return 0;
 }
diff --git a/sound/usb/midi.h b/sound/usb/midi.h
index 5e25a3fd6c1d..8c38aec22999 100644
--- a/sound/usb/midi.h
+++ b/sound/usb/midi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBMIDI_H
 #define __USBMIDI_H
 
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 9732edf77f86..91bc8f18791e 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -2234,6 +2234,9 @@ static int parse_audio_unit(struct mixer_build *state, int unitid)
 
 static void snd_usb_mixer_free(struct usb_mixer_interface *mixer)
 {
+	/* kill pending URBs */
+	snd_usb_mixer_disconnect(mixer);
+
 	kfree(mixer->id_elems);
 	if (mixer->urb) {
 		kfree(mixer->urb->transfer_buffer);
@@ -2584,8 +2587,13 @@ _error:
 
 void snd_usb_mixer_disconnect(struct usb_mixer_interface *mixer)
 {
-	usb_kill_urb(mixer->urb);
-	usb_kill_urb(mixer->rc_urb);
+	if (mixer->disconnected)
+		return;
+	if (mixer->urb)
+		usb_kill_urb(mixer->urb);
+	if (mixer->rc_urb)
+		usb_kill_urb(mixer->rc_urb);
+	mixer->disconnected = true;
 }
 
 #ifdef CONFIG_PM
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 2b4b067646ab..ba27f7ade670 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBMIXER_H
 #define __USBMIXER_H
 
@@ -22,6 +23,8 @@ struct usb_mixer_interface {
 	struct urb *rc_urb;
 	struct usb_ctrlrequest *rc_setup_packet;
 	u8 rc_buffer[6];
+
+	bool disconnected;
 };
 
 #define MAX_CHANNELS	16	/* max logical channels */
diff --git a/sound/usb/mixer_quirks.h b/sound/usb/mixer_quirks.h
index 177c329cd4dd..b5abd328a361 100644
--- a/sound/usb/mixer_quirks.h
+++ b/sound/usb/mixer_quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SND_USB_MIXER_QUIRKS_H
 #define SND_USB_MIXER_QUIRKS_H
 
diff --git a/sound/usb/mixer_scarlett.h b/sound/usb/mixer_scarlett.h
index 19c592ab0332..bbf063b79370 100644
--- a/sound/usb/mixer_scarlett.h
+++ b/sound/usb/mixer_scarlett.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB_MIXER_SCARLETT_H
 #define __USB_MIXER_SCARLETT_H
 
diff --git a/sound/usb/mixer_us16x08.h b/sound/usb/mixer_us16x08.h
index a6312fb0f962..56ff16c0698f 100644
--- a/sound/usb/mixer_us16x08.h
+++ b/sound/usb/mixer_us16x08.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB_MIXER_US16X08_H
 #define __USB_MIXER_US16X08_H
 
diff --git a/sound/usb/pcm.h b/sound/usb/pcm.h
index df7a003682ad..35740d5ef268 100644
--- a/sound/usb/pcm.h
+++ b/sound/usb/pcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_PCM_H
 #define __USBAUDIO_PCM_H
 
diff --git a/sound/usb/power.h b/sound/usb/power.h
index 48ee51dcb71e..b2e25f60c5a2 100644
--- a/sound/usb/power.h
+++ b/sound/usb/power.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_POWER_H
 #define __USBAUDIO_POWER_H
 
diff --git a/sound/usb/proc.h b/sound/usb/proc.h
index a45b765e4cf1..72b1b2d28b44 100644
--- a/sound/usb/proc.h
+++ b/sound/usb/proc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_PROC_H
 #define __USBAUDIO_PROC_H
 
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 913552078285..20624320b753 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1137,6 +1137,9 @@ bool snd_usb_get_sample_rate_quirk(struct snd_usb_audio *chip)
 	case USB_ID(0x047F, 0x02F7): /* Plantronics BT-600 */
 	case USB_ID(0x047F, 0x0415): /* Plantronics BT-300 */
 	case USB_ID(0x047F, 0xAA05): /* Plantronics DA45 */
+	case USB_ID(0x047F, 0xC022): /* Plantronics C310 */
+	case USB_ID(0x047F, 0xC02F): /* Plantronics P610 */
+	case USB_ID(0x047F, 0xC036): /* Plantronics C520-M */
 	case USB_ID(0x04D8, 0xFEEA): /* Benchmark DAC1 Pre */
 	case USB_ID(0x0556, 0x0014): /* Phoenix Audio TMX320VC */
 	case USB_ID(0x05A3, 0x9420): /* ELP HD USB Camera */
@@ -1351,6 +1354,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 	case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
 	case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
 	case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */
+	case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
 		if (fp->altsetting == 2)
 			return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 		break;
@@ -1371,6 +1375,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct snd_usb_audio *chip,
 			case 0x199:
 				return SNDRV_PCM_FMTBIT_DSD_U32_LE;
 			case 0x19b:
+			case 0x203:
 				return SNDRV_PCM_FMTBIT_DSD_U32_BE;
 			default:
 				break;
diff --git a/sound/usb/quirks.h b/sound/usb/quirks.h
index 192ff5ce9452..b90c8b7caab5 100644
--- a/sound/usb/quirks.h
+++ b/sound/usb/quirks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_QUIRKS_H
 #define __USBAUDIO_QUIRKS_H
 
diff --git a/sound/usb/stream.h b/sound/usb/stream.h
index c97f679fc84f..d92e18d5818f 100644
--- a/sound/usb/stream.h
+++ b/sound/usb/stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USBAUDIO_STREAM_H
 #define __USBAUDIO_STREAM_H
 
diff --git a/sound/usb/usx2y/Makefile b/sound/usb/usx2y/Makefile
index 748933054b6c..cc4c2f1efab2 100644
--- a/sound/usb/usx2y/Makefile
+++ b/sound/usb/usx2y/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 snd-usb-usx2y-objs := usbusx2y.o usX2Yhwdep.o usx2yhwdeppcm.o
 snd-usb-us122l-objs := us122l.o
 
diff --git a/sound/usb/usx2y/us122l.h b/sound/usb/usx2y/us122l.h
index 3e2a2d0041ee..34bea99d343c 100644
--- a/sound/usb/usx2y/us122l.h
+++ b/sound/usb/usx2y/us122l.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef US122L_H
 #define US122L_H
 
diff --git a/sound/usb/usx2y/usX2Yhwdep.h b/sound/usb/usx2y/usX2Yhwdep.h
index c095d5bf1220..457199b5ed03 100644
--- a/sound/usb/usx2y/usX2Yhwdep.h
+++ b/sound/usb/usx2y/usX2Yhwdep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef USX2YHWDEP_H
 #define USX2YHWDEP_H
 
diff --git a/sound/usb/usx2y/usb_stream.c b/sound/usb/usx2y/usb_stream.c
index 4dab49080700..e229abd21652 100644
--- a/sound/usb/usx2y/usb_stream.c
+++ b/sound/usb/usx2y/usb_stream.c
@@ -191,7 +191,8 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
 	}
 
 	pg = get_order(read_size);
-	sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
+	sk->s = (void *) __get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
+					  __GFP_NOWARN, pg);
 	if (!sk->s) {
 		snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
 		goto out;
@@ -211,7 +212,8 @@ struct usb_stream *usb_stream_new(struct usb_stream_kernel *sk,
 	pg = get_order(write_size);
 
 	sk->write_page =
-		(void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO, pg);
+		(void *)__get_free_pages(GFP_KERNEL|__GFP_COMP|__GFP_ZERO|
+					 __GFP_NOWARN, pg);
 	if (!sk->write_page) {
 		snd_printk(KERN_WARNING "couldn't __get_free_pages()\n");
 		usb_stream_free(sk);
diff --git a/sound/usb/usx2y/usb_stream.h b/sound/usb/usx2y/usb_stream.h
index 90369001eab6..851358a8d709 100644
--- a/sound/usb/usx2y/usb_stream.h
+++ b/sound/usb/usx2y/usb_stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __USB_STREAM_H
 #define __USB_STREAM_H
 
diff --git a/sound/usb/usx2y/usbusx2y.h b/sound/usb/usx2y/usbusx2y.h
index 6ae6b0806938..e0f77172ce8f 100644
--- a/sound/usb/usx2y/usbusx2y.h
+++ b/sound/usb/usx2y/usbusx2y.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef USBUSX2Y_H
 #define USBUSX2Y_H
 #include "../usbaudio.h"
diff --git a/sound/usb/usx2y/usx2yhwdeppcm.h b/sound/usb/usx2y/usx2yhwdeppcm.h
index 9c4fb84b2aa0..eb5a46466f0e 100644
--- a/sound/usb/usx2y/usx2yhwdeppcm.h
+++ b/sound/usb/usx2y/usx2yhwdeppcm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define MAXPACK 50
 #define MAXBUFFERMS 100
 #define MAXSTRIDE 3
diff --git a/tools/Makefile b/tools/Makefile
index 9dfede37c8ff..c4f41ef9a7a7 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Some of the tools (perf) use same make variables
 # as in kernel build.
 export srctree=
diff --git a/tools/accounting/Makefile b/tools/accounting/Makefile
index 647c94a219bf..03687f19cbb1 100644
--- a/tools/accounting/Makefile
+++ b/tools/accounting/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC := $(CROSS_COMPILE)gcc
 CFLAGS := -I../../usr/include
 
diff --git a/tools/accounting/getdelays.c b/tools/accounting/getdelays.c
index b5ca536e56a8..9f420d98b5fb 100644
--- a/tools/accounting/getdelays.c
+++ b/tools/accounting/getdelays.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* getdelays.c
  *
  * Utility to get per-pid and per-tgid delay accounting statistics
diff --git a/tools/arch/alpha/include/asm/barrier.h b/tools/arch/alpha/include/asm/barrier.h
index 95df19c95482..da8d6457ed4f 100644
--- a/tools/arch/alpha/include/asm/barrier.h
+++ b/tools/arch/alpha/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_ASM_ALPHA_BARRIER_H
 #define __TOOLS_LINUX_ASM_ALPHA_BARRIER_H
 
diff --git a/tools/arch/alpha/include/uapi/asm/bitsperlong.h b/tools/arch/alpha/include/uapi/asm/bitsperlong.h
index ad57f7868203..6c5bf7d03f4e 100644
--- a/tools/arch/alpha/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/alpha/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_ALPHA_BITSPERLONG_H
 #define __ASM_ALPHA_BITSPERLONG_H
 
diff --git a/tools/arch/alpha/include/uapi/asm/mman.h b/tools/arch/alpha/include/uapi/asm/mman.h
index e38b64c82b97..c317d3e6867a 100644
--- a/tools/arch/alpha/include/uapi/asm/mman.h
+++ b/tools/arch/alpha/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_ALPHA_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_ALPHA_UAPI_ASM_MMAN_FIX_H
 #define MADV_DODUMP	17
diff --git a/tools/arch/arc/include/uapi/asm/mman.h b/tools/arch/arc/include/uapi/asm/mman.h
index aa3acd2aa9af..81f0f9bf0c25 100644
--- a/tools/arch/arc/include/uapi/asm/mman.h
+++ b/tools/arch/arc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_ARC_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_ARC_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/arm/include/uapi/asm/kvm.h b/tools/arch/arm/include/uapi/asm/kvm.h
index 5db2d4c6a55f..1f57bbe82b6f 100644
--- a/tools/arch/arm/include/uapi/asm/kvm.h
+++ b/tools/arch/arm/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 - Virtual Open Systems and Columbia University
  * Author: Christoffer Dall <c.dall@virtualopensystems.com>
diff --git a/tools/arch/arm/include/uapi/asm/mman.h b/tools/arch/arm/include/uapi/asm/mman.h
index 478f699f56fd..a6d46321e330 100644
--- a/tools/arch/arm/include/uapi/asm/mman.h
+++ b/tools/arch/arm/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_ARM_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_ARM_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/arm/include/uapi/asm/perf_regs.h b/tools/arch/arm/include/uapi/asm/perf_regs.h
index ce59448458b2..a3c046174e6b 100644
--- a/tools/arch/arm/include/uapi/asm/perf_regs.h
+++ b/tools/arch/arm/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ARM_PERF_REGS_H
 #define _ASM_ARM_PERF_REGS_H
 
diff --git a/tools/arch/arm64/include/asm/barrier.h b/tools/arch/arm64/include/asm/barrier.h
index a0483c8e0142..40bde6b23501 100644
--- a/tools/arch/arm64/include/asm/barrier.h
+++ b/tools/arch/arm64/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_AARCH64_BARRIER_H
 #define _TOOLS_LINUX_ASM_AARCH64_BARRIER_H
 
diff --git a/tools/arch/arm64/include/uapi/asm/bitsperlong.h b/tools/arch/arm64/include/uapi/asm/bitsperlong.h
index fce9c2924fa3..485d60bee26c 100644
--- a/tools/arch/arm64/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/arm64/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012 ARM Ltd.
  *
diff --git a/tools/arch/arm64/include/uapi/asm/kvm.h b/tools/arch/arm64/include/uapi/asm/kvm.h
index 9f3ca24bbcc6..51149ec75fe4 100644
--- a/tools/arch/arm64/include/uapi/asm/kvm.h
+++ b/tools/arch/arm64/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (C) 2012,2013 - ARM Ltd
  * Author: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/tools/arch/arm64/include/uapi/asm/mman.h b/tools/arch/arm64/include/uapi/asm/mman.h
index 70fd3113710a..2ee288e447ec 100644
--- a/tools/arch/arm64/include/uapi/asm/mman.h
+++ b/tools/arch/arm64/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_ARM64_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_ARM64_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/arm64/include/uapi/asm/perf_regs.h b/tools/arch/arm64/include/uapi/asm/perf_regs.h
index 172b8317ee49..d54daafa89e3 100644
--- a/tools/arch/arm64/include/uapi/asm/perf_regs.h
+++ b/tools/arch/arm64/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_ARM64_PERF_REGS_H
 #define _ASM_ARM64_PERF_REGS_H
 
diff --git a/tools/arch/frv/include/uapi/asm/bitsperlong.h b/tools/arch/frv/include/uapi/asm/bitsperlong.h
index 6dc0bb0c13b2..76da34b10f59 100644
--- a/tools/arch/frv/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/frv/include/uapi/asm/bitsperlong.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/bitsperlong.h>
diff --git a/tools/arch/frv/include/uapi/asm/mman.h b/tools/arch/frv/include/uapi/asm/mman.h
index 5be78ac12464..5bc900b0bc78 100644
--- a/tools/arch/frv/include/uapi/asm/mman.h
+++ b/tools/arch/frv/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_FRV_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_FRV_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/h8300/include/asm/bitsperlong.h b/tools/arch/h8300/include/asm/bitsperlong.h
index e140e46729ac..fa1508337ffc 100644
--- a/tools/arch/h8300/include/asm/bitsperlong.h
+++ b/tools/arch/h8300/include/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_H8300_BITS_PER_LONG
 #define __ASM_H8300_BITS_PER_LONG
 
diff --git a/tools/arch/h8300/include/uapi/asm/mman.h b/tools/arch/h8300/include/uapi/asm/mman.h
index 9d9ac54d3c5a..be7bbe0528d1 100644
--- a/tools/arch/h8300/include/uapi/asm/mman.h
+++ b/tools/arch/h8300/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_H8300_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_H8300_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/hexagon/include/uapi/asm/bitsperlong.h b/tools/arch/hexagon/include/uapi/asm/bitsperlong.h
index 4a658151383d..5adca0d26913 100644
--- a/tools/arch/hexagon/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/hexagon/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
  *
diff --git a/tools/arch/hexagon/include/uapi/asm/mman.h b/tools/arch/hexagon/include/uapi/asm/mman.h
index 102f3fae6085..cd59ba932b3a 100644
--- a/tools/arch/hexagon/include/uapi/asm/mman.h
+++ b/tools/arch/hexagon/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_HEXAGON_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_HEXAGON_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/ia64/include/asm/barrier.h b/tools/arch/ia64/include/asm/barrier.h
index e4422b4b634e..d808ee0e77b5 100644
--- a/tools/arch/ia64/include/asm/barrier.h
+++ b/tools/arch/ia64/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copied from the kernel sources to tools/:
  *
diff --git a/tools/arch/ia64/include/uapi/asm/bitsperlong.h b/tools/arch/ia64/include/uapi/asm/bitsperlong.h
index ec4db3c970b7..1146d55563db 100644
--- a/tools/arch/ia64/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/ia64/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_IA64_BITSPERLONG_H
 #define __ASM_IA64_BITSPERLONG_H
 
diff --git a/tools/arch/ia64/include/uapi/asm/mman.h b/tools/arch/ia64/include/uapi/asm/mman.h
index 1d6e5ac6442d..2a19bb1db4ab 100644
--- a/tools/arch/ia64/include/uapi/asm/mman.h
+++ b/tools/arch/ia64/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_IA64_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_IA64_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/m32r/include/uapi/asm/bitsperlong.h b/tools/arch/m32r/include/uapi/asm/bitsperlong.h
index 6dc0bb0c13b2..76da34b10f59 100644
--- a/tools/arch/m32r/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/m32r/include/uapi/asm/bitsperlong.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/bitsperlong.h>
diff --git a/tools/arch/m32r/include/uapi/asm/mman.h b/tools/arch/m32r/include/uapi/asm/mman.h
index 1c29635bb73b..d19b82c9c290 100644
--- a/tools/arch/m32r/include/uapi/asm/mman.h
+++ b/tools/arch/m32r/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_M32R_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_M32R_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/microblaze/include/uapi/asm/bitsperlong.h b/tools/arch/microblaze/include/uapi/asm/bitsperlong.h
index 6dc0bb0c13b2..76da34b10f59 100644
--- a/tools/arch/microblaze/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/microblaze/include/uapi/asm/bitsperlong.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #include <asm-generic/bitsperlong.h>
diff --git a/tools/arch/microblaze/include/uapi/asm/mman.h b/tools/arch/microblaze/include/uapi/asm/mman.h
index 005cd50b50e1..f3f2103fd02c 100644
--- a/tools/arch/microblaze/include/uapi/asm/mman.h
+++ b/tools/arch/microblaze/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_MICROBLAZE_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_MICROBLAZE_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/mips/include/asm/barrier.h b/tools/arch/mips/include/asm/barrier.h
index 80f96f7556e3..0d1191523cd0 100644
--- a/tools/arch/mips/include/asm/barrier.h
+++ b/tools/arch/mips/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_MIPS_BARRIER_H
 #define _TOOLS_LINUX_ASM_MIPS_BARRIER_H
 /*
diff --git a/tools/arch/mips/include/uapi/asm/bitsperlong.h b/tools/arch/mips/include/uapi/asm/bitsperlong.h
index 3e4c10a8e787..7268380d8d28 100644
--- a/tools/arch/mips/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/mips/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_MIPS_BITSPERLONG_H
 #define __ASM_MIPS_BITSPERLONG_H
 
diff --git a/tools/arch/mips/include/uapi/asm/kvm.h b/tools/arch/mips/include/uapi/asm/kvm.h
index 6985eb59b085..d2714cc1cd93 100644
--- a/tools/arch/mips/include/uapi/asm/kvm.h
+++ b/tools/arch/mips/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
diff --git a/tools/arch/mips/include/uapi/asm/mman.h b/tools/arch/mips/include/uapi/asm/mman.h
index c02052965d50..de2206883abc 100644
--- a/tools/arch/mips/include/uapi/asm/mman.h
+++ b/tools/arch/mips/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_MIPS_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_MIPS_UAPI_ASM_MMAN_FIX_H
 #define MADV_DODUMP	17
diff --git a/tools/arch/mn10300/include/uapi/asm/mman.h b/tools/arch/mn10300/include/uapi/asm/mman.h
index c1ea36d83acc..b9360639974f 100644
--- a/tools/arch/mn10300/include/uapi/asm/mman.h
+++ b/tools/arch/mn10300/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_MN10300_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_MN10300_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/parisc/include/uapi/asm/bitsperlong.h b/tools/arch/parisc/include/uapi/asm/bitsperlong.h
index e0a23c7bdd43..23ac7562927a 100644
--- a/tools/arch/parisc/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/parisc/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_PARISC_BITSPERLONG_H
 #define __ASM_PARISC_BITSPERLONG_H
 
diff --git a/tools/arch/parisc/include/uapi/asm/mman.h b/tools/arch/parisc/include/uapi/asm/mman.h
index 286c0bd74573..1bd78758bde9 100644
--- a/tools/arch/parisc/include/uapi/asm/mman.h
+++ b/tools/arch/parisc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_PARISC_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_PARISC_UAPI_ASM_MMAN_FIX_H
 #define MADV_DODUMP	70
diff --git a/tools/arch/powerpc/include/asm/barrier.h b/tools/arch/powerpc/include/asm/barrier.h
index b23aee8e6d90..a634da05bc97 100644
--- a/tools/arch/powerpc/include/asm/barrier.h
+++ b/tools/arch/powerpc/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copied from the kernel sources:
  *
diff --git a/tools/arch/powerpc/include/uapi/asm/bitsperlong.h b/tools/arch/powerpc/include/uapi/asm/bitsperlong.h
index 5f1659032c40..46ece3ecff31 100644
--- a/tools/arch/powerpc/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/powerpc/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_POWERPC_BITSPERLONG_H
 #define __ASM_POWERPC_BITSPERLONG_H
 
diff --git a/tools/arch/powerpc/include/uapi/asm/kvm.h b/tools/arch/powerpc/include/uapi/asm/kvm.h
index 8cf8f0c96906..61d6049f4c1e 100644
--- a/tools/arch/powerpc/include/uapi/asm/kvm.h
+++ b/tools/arch/powerpc/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License, version 2, as
diff --git a/tools/arch/powerpc/include/uapi/asm/mman.h b/tools/arch/powerpc/include/uapi/asm/mman.h
index 761db43172fe..f33105bc5ca6 100644
--- a/tools/arch/powerpc/include/uapi/asm/mman.h
+++ b/tools/arch/powerpc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_POWERPC_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_POWERPC_UAPI_ASM_MMAN_FIX_H
 #define MAP_DENYWRITE	0x0800
diff --git a/tools/arch/powerpc/include/uapi/asm/perf_regs.h b/tools/arch/powerpc/include/uapi/asm/perf_regs.h
index 6a93209748a1..9e52c86ccbd3 100644
--- a/tools/arch/powerpc/include/uapi/asm/perf_regs.h
+++ b/tools/arch/powerpc/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_POWERPC_PERF_REGS_H
 #define _UAPI_ASM_POWERPC_PERF_REGS_H
 
diff --git a/tools/arch/s390/include/asm/barrier.h b/tools/arch/s390/include/asm/barrier.h
index f85141266b92..5030c99f47d2 100644
--- a/tools/arch/s390/include/asm/barrier.h
+++ b/tools/arch/s390/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copied from the kernel sources:
  *
diff --git a/tools/arch/s390/include/uapi/asm/bitsperlong.h b/tools/arch/s390/include/uapi/asm/bitsperlong.h
index e351ea2ad43e..d2bb620119bf 100644
--- a/tools/arch/s390/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/s390/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_S390_BITSPERLONG_H
 #define __ASM_S390_BITSPERLONG_H
 
diff --git a/tools/arch/s390/include/uapi/asm/kvm.h b/tools/arch/s390/include/uapi/asm/kvm.h
index 69d09c39bbcd..9ad172dcd912 100644
--- a/tools/arch/s390/include/uapi/asm/kvm.h
+++ b/tools/arch/s390/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_KVM_S390_H
 #define __LINUX_KVM_S390_H
 /*
@@ -88,6 +89,12 @@ struct kvm_s390_io_adapter_req {
 /* kvm attributes for KVM_S390_VM_TOD */
 #define KVM_S390_VM_TOD_LOW		0
 #define KVM_S390_VM_TOD_HIGH		1
+#define KVM_S390_VM_TOD_EXT		2
+
+struct kvm_s390_vm_tod_clock {
+	__u8  epoch_idx;
+	__u64 tod;
+};
 
 /* kvm attributes for KVM_S390_VM_CPU_MODEL */
 /* processor related attributes are r/w */
diff --git a/tools/arch/s390/include/uapi/asm/kvm_perf.h b/tools/arch/s390/include/uapi/asm/kvm_perf.h
index 397282727e21..c36c97ffdc6f 100644
--- a/tools/arch/s390/include/uapi/asm/kvm_perf.h
+++ b/tools/arch/s390/include/uapi/asm/kvm_perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Definitions for perf-kvm on s390
  *
diff --git a/tools/arch/s390/include/uapi/asm/mman.h b/tools/arch/s390/include/uapi/asm/mman.h
index b03dea9e1f56..4ec32e4251a4 100644
--- a/tools/arch/s390/include/uapi/asm/mman.h
+++ b/tools/arch/s390/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_S390_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_S390_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/s390/include/uapi/asm/sie.h b/tools/arch/s390/include/uapi/asm/sie.h
index 3ac634368939..6ca1e68d7103 100644
--- a/tools/arch/s390/include/uapi/asm/sie.h
+++ b/tools/arch/s390/include/uapi/asm/sie.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_S390_SIE_H
 #define _UAPI_ASM_S390_SIE_H
 
diff --git a/tools/arch/score/include/uapi/asm/bitsperlong.h b/tools/arch/score/include/uapi/asm/bitsperlong.h
index 86ff337aa459..df48f2717da2 100644
--- a/tools/arch/score/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/score/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_SCORE_BITSPERLONG_H
 #define _ASM_SCORE_BITSPERLONG_H
 
diff --git a/tools/arch/score/include/uapi/asm/mman.h b/tools/arch/score/include/uapi/asm/mman.h
index 2f8fb89944fd..b4bd195a8586 100644
--- a/tools/arch/score/include/uapi/asm/mman.h
+++ b/tools/arch/score/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_SCORE_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_SCORE_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/sh/include/asm/barrier.h b/tools/arch/sh/include/asm/barrier.h
index c18fd7599b97..bde5221af282 100644
--- a/tools/arch/sh/include/asm/barrier.h
+++ b/tools/arch/sh/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copied from the kernel sources:
  *
diff --git a/tools/arch/sh/include/uapi/asm/mman.h b/tools/arch/sh/include/uapi/asm/mman.h
index 26504f6f060e..88c0e2930c47 100644
--- a/tools/arch/sh/include/uapi/asm/mman.h
+++ b/tools/arch/sh/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_SH_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_SH_UAPI_ASM_MMAN_FIX_H
 #include <uapi/asm-generic/mman.h>
diff --git a/tools/arch/sparc/include/asm/barrier.h b/tools/arch/sparc/include/asm/barrier.h
index 8c017b3b1391..95d1618465a6 100644
--- a/tools/arch/sparc/include/asm/barrier.h
+++ b/tools/arch/sparc/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ___TOOLS_LINUX_ASM_SPARC_BARRIER_H
 #define ___TOOLS_LINUX_ASM_SPARC_BARRIER_H
 #if defined(__sparc__) && defined(__arch64__)
diff --git a/tools/arch/sparc/include/asm/barrier_32.h b/tools/arch/sparc/include/asm/barrier_32.h
index c5eadd0a7233..cc19ed1dde0b 100644
--- a/tools/arch/sparc/include/asm/barrier_32.h
+++ b/tools/arch/sparc/include/asm/barrier_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_PERF_SPARC_BARRIER_H
 #define __TOOLS_PERF_SPARC_BARRIER_H
 
diff --git a/tools/arch/sparc/include/asm/barrier_64.h b/tools/arch/sparc/include/asm/barrier_64.h
index 9a7d7322c3f7..ba61344287d5 100644
--- a/tools/arch/sparc/include/asm/barrier_64.h
+++ b/tools/arch/sparc/include/asm/barrier_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_SPARC64_BARRIER_H
 #define __TOOLS_LINUX_SPARC64_BARRIER_H
 
diff --git a/tools/arch/sparc/include/uapi/asm/bitsperlong.h b/tools/arch/sparc/include/uapi/asm/bitsperlong.h
index b62dd907d7c3..3b4e61740b75 100644
--- a/tools/arch/sparc/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/sparc/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_ALPHA_BITSPERLONG_H
 #define __ASM_ALPHA_BITSPERLONG_H
 
diff --git a/tools/arch/sparc/include/uapi/asm/mman.h b/tools/arch/sparc/include/uapi/asm/mman.h
index 8640525de991..38920eed8cbf 100644
--- a/tools/arch/sparc/include/uapi/asm/mman.h
+++ b/tools/arch/sparc/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_SPARC_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_SPARC_UAPI_ASM_MMAN_FIX_H
 #define MAP_DENYWRITE	0x0800
diff --git a/tools/arch/tile/include/asm/barrier.h b/tools/arch/tile/include/asm/barrier.h
index 7d3692c3d4ac..7ad02a591b43 100644
--- a/tools/arch/tile/include/asm/barrier.h
+++ b/tools/arch/tile/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_TILE_BARRIER_H
 #define _TOOLS_LINUX_ASM_TILE_BARRIER_H
 /*
diff --git a/tools/arch/tile/include/uapi/asm/bitsperlong.h b/tools/arch/tile/include/uapi/asm/bitsperlong.h
index 58c771f2af2f..57cca78c0fbb 100644
--- a/tools/arch/tile/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/tile/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Copyright 2010 Tilera Corporation. All Rights Reserved.
  *
diff --git a/tools/arch/tile/include/uapi/asm/mman.h b/tools/arch/tile/include/uapi/asm/mman.h
index 7116c4b928b3..65ec92925c6c 100644
--- a/tools/arch/tile/include/uapi/asm/mman.h
+++ b/tools/arch/tile/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_TILE_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_TILE_UAPI_ASM_MMAN_FIX_H
 #define MAP_DENYWRITE	0x0800
diff --git a/tools/arch/x86/include/asm/atomic.h b/tools/arch/x86/include/asm/atomic.h
index 328eeceec709..1f5e26aae9fc 100644
--- a/tools/arch/x86/include/asm/atomic.h
+++ b/tools/arch/x86/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_X86_ATOMIC_H
 #define _TOOLS_LINUX_ASM_X86_ATOMIC_H
 
@@ -24,7 +25,7 @@
  */
 static inline int atomic_read(const atomic_t *v)
 {
-	return ACCESS_ONCE((v)->counter);
+	return READ_ONCE((v)->counter);
 }
 
 /**
diff --git a/tools/arch/x86/include/asm/barrier.h b/tools/arch/x86/include/asm/barrier.h
index f366d8e550e4..8774dee27471 100644
--- a/tools/arch/x86/include/asm/barrier.h
+++ b/tools/arch/x86/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_X86_BARRIER_H
 #define _TOOLS_LINUX_ASM_X86_BARRIER_H
 
diff --git a/tools/arch/x86/include/asm/cmpxchg.h b/tools/arch/x86/include/asm/cmpxchg.h
index f5253260f3cc..0ed9ca2766ad 100644
--- a/tools/arch/x86/include/asm/cmpxchg.h
+++ b/tools/arch/x86/include/asm/cmpxchg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TOOLS_ASM_X86_CMPXCHG_H
 #define TOOLS_ASM_X86_CMPXCHG_H
 
diff --git a/tools/arch/x86/include/asm/cpufeatures.h b/tools/arch/x86/include/asm/cpufeatures.h
index 8ea315a11fe0..793690fbda36 100644
--- a/tools/arch/x86/include/asm/cpufeatures.h
+++ b/tools/arch/x86/include/asm/cpufeatures.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_X86_CPUFEATURES_H
 #define _ASM_X86_CPUFEATURES_H
 
@@ -196,6 +197,7 @@
 
 #define X86_FEATURE_HW_PSTATE	( 7*32+ 8) /* AMD HW-PState */
 #define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
+#define X86_FEATURE_SME		( 7*32+10) /* AMD Secure Memory Encryption */
 
 #define X86_FEATURE_INTEL_PPIN	( 7*32+14) /* Intel Processor Inventory Number */
 #define X86_FEATURE_INTEL_PT	( 7*32+15) /* Intel Processor Trace */
@@ -287,6 +289,7 @@
 #define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
 #define X86_FEATURE_AVIC	(15*32+13) /* Virtual Interrupt Controller */
 #define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
+#define X86_FEATURE_VGIF	(15*32+16) /* Virtual GIF */
 
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ecx), word 16 */
 #define X86_FEATURE_AVX512VBMI  (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
diff --git a/tools/arch/x86/include/asm/disabled-features.h b/tools/arch/x86/include/asm/disabled-features.h
index 5dff775af7cd..c10c9128f54e 100644
--- a/tools/arch/x86/include/asm/disabled-features.h
+++ b/tools/arch/x86/include/asm/disabled-features.h
@@ -21,11 +21,13 @@
 # define DISABLE_K6_MTRR	(1<<(X86_FEATURE_K6_MTRR & 31))
 # define DISABLE_CYRIX_ARR	(1<<(X86_FEATURE_CYRIX_ARR & 31))
 # define DISABLE_CENTAUR_MCR	(1<<(X86_FEATURE_CENTAUR_MCR & 31))
+# define DISABLE_PCID		0
 #else
 # define DISABLE_VME		0
 # define DISABLE_K6_MTRR	0
 # define DISABLE_CYRIX_ARR	0
 # define DISABLE_CENTAUR_MCR	0
+# define DISABLE_PCID		(1<<(X86_FEATURE_PCID & 31))
 #endif /* CONFIG_X86_64 */
 
 #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
@@ -49,7 +51,7 @@
 #define DISABLED_MASK1	0
 #define DISABLED_MASK2	0
 #define DISABLED_MASK3	(DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
-#define DISABLED_MASK4	0
+#define DISABLED_MASK4	(DISABLE_PCID)
 #define DISABLED_MASK5	0
 #define DISABLED_MASK6	0
 #define DISABLED_MASK7	0
diff --git a/tools/arch/x86/include/asm/rmwcc.h b/tools/arch/x86/include/asm/rmwcc.h
index a6669bc06939..dc90c0c2fae3 100644
--- a/tools/arch/x86/include/asm/rmwcc.h
+++ b/tools/arch/x86/include/asm/rmwcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_X86_RMWcc
 #define _TOOLS_LINUX_ASM_X86_RMWcc
 
diff --git a/tools/arch/x86/include/asm/unistd_32.h b/tools/arch/x86/include/asm/unistd_32.h
index 0e4312ffc945..60a89dba01b6 100644
--- a/tools/arch/x86/include/asm/unistd_32.h
+++ b/tools/arch/x86/include/asm/unistd_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NR_perf_event_open
 # define __NR_perf_event_open 336
 #endif
diff --git a/tools/arch/x86/include/asm/unistd_64.h b/tools/arch/x86/include/asm/unistd_64.h
index dd56bb36132a..cb52a3a8b8fc 100644
--- a/tools/arch/x86/include/asm/unistd_64.h
+++ b/tools/arch/x86/include/asm/unistd_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __NR_perf_event_open
 # define __NR_perf_event_open 298
 #endif
diff --git a/tools/arch/x86/include/uapi/asm/bitsperlong.h b/tools/arch/x86/include/uapi/asm/bitsperlong.h
index 6e23c543cd80..f8a92e0009d6 100644
--- a/tools/arch/x86/include/uapi/asm/bitsperlong.h
+++ b/tools/arch/x86/include/uapi/asm/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_X86_BITSPERLONG_H
 #define __ASM_X86_BITSPERLONG_H
 
diff --git a/tools/arch/x86/include/uapi/asm/kvm.h b/tools/arch/x86/include/uapi/asm/kvm.h
index c2824d02ba37..f3a960488eae 100644
--- a/tools/arch/x86/include/uapi/asm/kvm.h
+++ b/tools/arch/x86/include/uapi/asm/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_KVM_H
 #define _ASM_X86_KVM_H
 
diff --git a/tools/arch/x86/include/uapi/asm/kvm_perf.h b/tools/arch/x86/include/uapi/asm/kvm_perf.h
index 3bb964f88aa1..125cf5cdf6c5 100644
--- a/tools/arch/x86/include/uapi/asm/kvm_perf.h
+++ b/tools/arch/x86/include/uapi/asm/kvm_perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_KVM_PERF_H
 #define _ASM_X86_KVM_PERF_H
 
diff --git a/tools/arch/x86/include/uapi/asm/mman.h b/tools/arch/x86/include/uapi/asm/mman.h
index b73c1af8b1dd..8449778de2ed 100644
--- a/tools/arch/x86/include/uapi/asm/mman.h
+++ b/tools/arch/x86/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_X86_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_X86_UAPI_ASM_MMAN_FIX_H
 #define MAP_32BIT	0x40
diff --git a/tools/arch/x86/include/uapi/asm/perf_regs.h b/tools/arch/x86/include/uapi/asm/perf_regs.h
index 3f2207bfd17b..f3329cabce5c 100644
--- a/tools/arch/x86/include/uapi/asm/perf_regs.h
+++ b/tools/arch/x86/include/uapi/asm/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _ASM_X86_PERF_REGS_H
 #define _ASM_X86_PERF_REGS_H
 
diff --git a/tools/arch/x86/include/uapi/asm/svm.h b/tools/arch/x86/include/uapi/asm/svm.h
index 3725e145aa58..a9731f8a480f 100644
--- a/tools/arch/x86/include/uapi/asm/svm.h
+++ b/tools/arch/x86/include/uapi/asm/svm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__SVM_H
 #define _UAPI__SVM_H
 
diff --git a/tools/arch/x86/include/uapi/asm/unistd.h b/tools/arch/x86/include/uapi/asm/unistd.h
index a26df0d75cd0..30d7d04d72d6 100644
--- a/tools/arch/x86/include/uapi/asm/unistd.h
+++ b/tools/arch/x86/include/uapi/asm/unistd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_ASM_X86_UNISTD_H
 #define _UAPI_ASM_X86_UNISTD_H
 
diff --git a/tools/arch/x86/include/uapi/asm/vmx.h b/tools/arch/x86/include/uapi/asm/vmx.h
index 690a2dcf4078..f0b0c90dd398 100644
--- a/tools/arch/x86/include/uapi/asm/vmx.h
+++ b/tools/arch/x86/include/uapi/asm/vmx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * vmx.h: VMX Architecture related definitions
  * Copyright (c) 2004, Intel Corporation.
diff --git a/tools/arch/x86/lib/memcpy_64.S b/tools/arch/x86/lib/memcpy_64.S
index 98dcc112b363..9a53a06e5a3e 100644
--- a/tools/arch/x86/lib/memcpy_64.S
+++ b/tools/arch/x86/lib/memcpy_64.S
@@ -4,6 +4,7 @@
 #include <asm/errno.h>
 #include <asm/cpufeatures.h>
 #include <asm/alternative-asm.h>
+#include <asm/export.h>
 
 /*
  * We build a jump to memcpy_orig by default which gets NOPped out on
@@ -40,6 +41,8 @@ ENTRY(memcpy)
 	ret
 ENDPROC(memcpy)
 ENDPROC(__memcpy)
+EXPORT_SYMBOL(memcpy)
+EXPORT_SYMBOL(__memcpy)
 
 /*
  * memcpy_erms() - enhanced fast string memcpy. This is faster and
@@ -274,6 +277,7 @@ ENTRY(memcpy_mcsafe_unrolled)
 	xorq %rax, %rax
 	ret
 ENDPROC(memcpy_mcsafe_unrolled)
+EXPORT_SYMBOL_GPL(memcpy_mcsafe_unrolled)
 
 	.section .fixup, "ax"
 	/* Return -EFAULT for any failure */
diff --git a/tools/arch/x86/lib/memset_64.S b/tools/arch/x86/lib/memset_64.S
index e1229ecd2a82..f8f3dc0a6690 100644
--- a/tools/arch/x86/lib/memset_64.S
+++ b/tools/arch/x86/lib/memset_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* Copyright 2002 Andi Kleen, SuSE Labs */
 
 #include <linux/linkage.h>
diff --git a/tools/arch/xtensa/include/uapi/asm/mman.h b/tools/arch/xtensa/include/uapi/asm/mman.h
index 4453195c450c..34dde6f44dae 100644
--- a/tools/arch/xtensa/include/uapi/asm/mman.h
+++ b/tools/arch/xtensa/include/uapi/asm/mman.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef TOOLS_ARCH_XTENSA_UAPI_ASM_MMAN_FIX_H
 #define TOOLS_ARCH_XTENSA_UAPI_ASM_MMAN_FIX_H
 #define MADV_DODUMP	17
diff --git a/tools/build/Makefile b/tools/build/Makefile
index 477f00eda591..5eb4b5ad79cb 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifeq ($(srctree),)
 srctree := $(patsubst %/,%,$(dir $(CURDIR)))
 srctree := $(patsubst %/,%,$(dir $(srctree)))
diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index c46b20e4ad87..cd72016c3cfa 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ###
 # Main build makefile.
 #
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index ee2546ddf028..96982640fbf8 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 FILES=                                          \
          test-all.bin                           \
          test-backtrace.bin                     \
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index b5cfc6445771..4112702e4aed 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * test-all.c: Try to build all the main testcases at once.
  *
diff --git a/tools/build/feature/test-backtrace.c b/tools/build/feature/test-backtrace.c
index 7124aa1dc8fb..e9ddd27c69c3 100644
--- a/tools/build/feature/test-backtrace.c
+++ b/tools/build/feature/test-backtrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <execinfo.h>
 #include <stdio.h>
 
diff --git a/tools/build/feature/test-bionic.c b/tools/build/feature/test-bionic.c
index eac24e9513eb..4bcc9776504c 100644
--- a/tools/build/feature/test-bionic.c
+++ b/tools/build/feature/test-bionic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <android/api-level.h>
 
 int main(void)
diff --git a/tools/build/feature/test-bpf.c b/tools/build/feature/test-bpf.c
index da2172ff9662..82070eadfc07 100644
--- a/tools/build/feature/test-bpf.c
+++ b/tools/build/feature/test-bpf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/unistd.h>
 #include <linux/bpf.h>
 #include <unistd.h>
diff --git a/tools/build/feature/test-clang.cpp b/tools/build/feature/test-clang.cpp
index e23c1b1f1b91..a2b3f092d2f0 100644
--- a/tools/build/feature/test-clang.cpp
+++ b/tools/build/feature/test-clang.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "clang/Basic/VirtualFileSystem.h"
 #include "clang/Driver/Driver.h"
 #include "clang/Frontend/TextDiagnosticPrinter.h"
diff --git a/tools/build/feature/test-compile.c b/tools/build/feature/test-compile.c
index c54e6551ae4c..9821b8271dee 100644
--- a/tools/build/feature/test-compile.c
+++ b/tools/build/feature/test-compile.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 int main(void)
 {
diff --git a/tools/build/feature/test-cplus-demangle.c b/tools/build/feature/test-cplus-demangle.c
index 610c686e0009..2ba56474ab71 100644
--- a/tools/build/feature/test-cplus-demangle.c
+++ b/tools/build/feature/test-cplus-demangle.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 extern int printf(const char *format, ...);
 extern char *cplus_demangle(const char *, int);
 
diff --git a/tools/build/feature/test-cxx.cpp b/tools/build/feature/test-cxx.cpp
index b1dee9a31d6c..396aaedd2418 100644
--- a/tools/build/feature/test-cxx.cpp
+++ b/tools/build/feature/test-cxx.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <iostream>
 #include <memory>
 
diff --git a/tools/build/feature/test-dwarf.c b/tools/build/feature/test-dwarf.c
index 3fc1801ce4a9..8d474bd7371b 100644
--- a/tools/build/feature/test-dwarf.c
+++ b/tools/build/feature/test-dwarf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dwarf.h>
 #include <elfutils/libdw.h>
 #include <elfutils/version.h>
diff --git a/tools/build/feature/test-dwarf_getlocations.c b/tools/build/feature/test-dwarf_getlocations.c
index 70162699dd43..78fb4a1fa68c 100644
--- a/tools/build/feature/test-dwarf_getlocations.c
+++ b/tools/build/feature/test-dwarf_getlocations.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <elfutils/libdw.h>
 
diff --git a/tools/build/feature/test-get_cpuid.c b/tools/build/feature/test-get_cpuid.c
index d7a2c407130d..bb4f065f28a6 100644
--- a/tools/build/feature/test-get_cpuid.c
+++ b/tools/build/feature/test-get_cpuid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <cpuid.h>
 
 int main(void)
diff --git a/tools/build/feature/test-glibc.c b/tools/build/feature/test-glibc.c
index 9367f7586676..9ab8e90e7b88 100644
--- a/tools/build/feature/test-glibc.c
+++ b/tools/build/feature/test-glibc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 
 #if !defined(__UCLIBC__)
diff --git a/tools/build/feature/test-gtk2-infobar.c b/tools/build/feature/test-gtk2-infobar.c
index 397b4646d066..b1b716dd5733 100644
--- a/tools/build/feature/test-gtk2-infobar.c
+++ b/tools/build/feature/test-gtk2-infobar.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
 #include <gtk/gtk.h>
 #pragma GCC diagnostic error "-Wstrict-prototypes"
diff --git a/tools/build/feature/test-gtk2.c b/tools/build/feature/test-gtk2.c
index 6bd80e509439..2aaf4bfc2055 100644
--- a/tools/build/feature/test-gtk2.c
+++ b/tools/build/feature/test-gtk2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #pragma GCC diagnostic ignored "-Wstrict-prototypes"
 #include <gtk/gtk.h>
 #pragma GCC diagnostic error "-Wstrict-prototypes"
diff --git a/tools/build/feature/test-jvmti.c b/tools/build/feature/test-jvmti.c
index 1c665f09b9d6..5cf31192f204 100644
--- a/tools/build/feature/test-jvmti.c
+++ b/tools/build/feature/test-jvmti.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <jvmti.h>
 #include <jvmticmlr.h>
 
diff --git a/tools/build/feature/test-libaudit.c b/tools/build/feature/test-libaudit.c
index afc019f08641..f5b0863fa1ec 100644
--- a/tools/build/feature/test-libaudit.c
+++ b/tools/build/feature/test-libaudit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libaudit.h>
 
 extern int printf(const char *format, ...);
diff --git a/tools/build/feature/test-libbabeltrace.c b/tools/build/feature/test-libbabeltrace.c
index 9cf802a04885..10bb69d55694 100644
--- a/tools/build/feature/test-libbabeltrace.c
+++ b/tools/build/feature/test-libbabeltrace.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <babeltrace/ctf-writer/writer.h>
 #include <babeltrace/ctf-ir/stream-class.h>
diff --git a/tools/build/feature/test-libbfd.c b/tools/build/feature/test-libbfd.c
index 24059907e990..afa46b0465cd 100644
--- a/tools/build/feature/test-libbfd.c
+++ b/tools/build/feature/test-libbfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <bfd.h>
 
 extern int printf(const char *format, ...);
diff --git a/tools/build/feature/test-libcrypto.c b/tools/build/feature/test-libcrypto.c
index bd79dc7f28d3..a98174e0569c 100644
--- a/tools/build/feature/test-libcrypto.c
+++ b/tools/build/feature/test-libcrypto.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <openssl/sha.h>
 #include <openssl/md5.h>
 
diff --git a/tools/build/feature/test-libdw-dwarf-unwind.c b/tools/build/feature/test-libdw-dwarf-unwind.c
index f676a3ff442a..ed03d9505609 100644
--- a/tools/build/feature/test-libdw-dwarf-unwind.c
+++ b/tools/build/feature/test-libdw-dwarf-unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <elfutils/libdwfl.h>
 
diff --git a/tools/build/feature/test-libelf-gelf_getnote.c b/tools/build/feature/test-libelf-gelf_getnote.c
index d78cf4d5271f..075d062fe841 100644
--- a/tools/build/feature/test-libelf-gelf_getnote.c
+++ b/tools/build/feature/test-libelf-gelf_getnote.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <gelf.h>
 
diff --git a/tools/build/feature/test-libelf-getphdrnum.c b/tools/build/feature/test-libelf-getphdrnum.c
index d710459306c3..96a7f8d30a59 100644
--- a/tools/build/feature/test-libelf-getphdrnum.c
+++ b/tools/build/feature/test-libelf-getphdrnum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libelf.h>
 
 int main(void)
diff --git a/tools/build/feature/test-libelf-getshdrstrndx.c b/tools/build/feature/test-libelf-getshdrstrndx.c
index f0c3b47cce28..ae9f2fff5af0 100644
--- a/tools/build/feature/test-libelf-getshdrstrndx.c
+++ b/tools/build/feature/test-libelf-getshdrstrndx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libelf.h>
 
 int main(void)
diff --git a/tools/build/feature/test-libelf-mmap.c b/tools/build/feature/test-libelf-mmap.c
index 564427d7ef18..2c3ef81affe2 100644
--- a/tools/build/feature/test-libelf-mmap.c
+++ b/tools/build/feature/test-libelf-mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libelf.h>
 
 int main(void)
diff --git a/tools/build/feature/test-libelf.c b/tools/build/feature/test-libelf.c
index 08db322d8957..905044127d56 100644
--- a/tools/build/feature/test-libelf.c
+++ b/tools/build/feature/test-libelf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libelf.h>
 
 int main(void)
diff --git a/tools/build/feature/test-libnuma.c b/tools/build/feature/test-libnuma.c
index 4763d9cd587d..b3aa59f8b3cb 100644
--- a/tools/build/feature/test-libnuma.c
+++ b/tools/build/feature/test-libnuma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <numa.h>
 #include <numaif.h>
 
diff --git a/tools/build/feature/test-libperl.c b/tools/build/feature/test-libperl.c
index 8871f6a0fdb4..0415f437eb31 100644
--- a/tools/build/feature/test-libperl.c
+++ b/tools/build/feature/test-libperl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <EXTERN.h>
 #include <perl.h>
 
diff --git a/tools/build/feature/test-libpython-version.c b/tools/build/feature/test-libpython-version.c
index facea122d812..47714b942d4d 100644
--- a/tools/build/feature/test-libpython-version.c
+++ b/tools/build/feature/test-libpython-version.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <Python.h>
 
 #if PY_VERSION_HEX >= 0x03000000
diff --git a/tools/build/feature/test-libpython.c b/tools/build/feature/test-libpython.c
index b24b28ad6324..0c1641b0d9a7 100644
--- a/tools/build/feature/test-libpython.c
+++ b/tools/build/feature/test-libpython.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <Python.h>
 
 int main(void)
diff --git a/tools/build/feature/test-libslang.c b/tools/build/feature/test-libslang.c
index 22ff22ed94d1..9cbff8d1df53 100644
--- a/tools/build/feature/test-libslang.c
+++ b/tools/build/feature/test-libslang.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <slang.h>
 
 int main(void)
diff --git a/tools/build/feature/test-libunwind-aarch64.c b/tools/build/feature/test-libunwind-aarch64.c
index fc03fb64e8c1..323803f49212 100644
--- a/tools/build/feature/test-libunwind-aarch64.c
+++ b/tools/build/feature/test-libunwind-aarch64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind-aarch64.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind-arm.c b/tools/build/feature/test-libunwind-arm.c
index 632d95ec641f..cb378b7d6866 100644
--- a/tools/build/feature/test-libunwind-arm.c
+++ b/tools/build/feature/test-libunwind-arm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind-arm.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind-debug-frame-aarch64.c b/tools/build/feature/test-libunwind-debug-frame-aarch64.c
index 22844673fc26..36d6646c185e 100644
--- a/tools/build/feature/test-libunwind-debug-frame-aarch64.c
+++ b/tools/build/feature/test-libunwind-debug-frame-aarch64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind-aarch64.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind-debug-frame-arm.c b/tools/build/feature/test-libunwind-debug-frame-arm.c
index f98859684fee..8696e48e1268 100644
--- a/tools/build/feature/test-libunwind-debug-frame-arm.c
+++ b/tools/build/feature/test-libunwind-debug-frame-arm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind-arm.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind-debug-frame.c b/tools/build/feature/test-libunwind-debug-frame.c
index 0ef8087a104a..efb55cdd8d01 100644
--- a/tools/build/feature/test-libunwind-debug-frame.c
+++ b/tools/build/feature/test-libunwind-debug-frame.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind-x86.c b/tools/build/feature/test-libunwind-x86.c
index 3561edce305e..e5e0f6c89637 100644
--- a/tools/build/feature/test-libunwind-x86.c
+++ b/tools/build/feature/test-libunwind-x86.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind-x86.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind-x86_64.c b/tools/build/feature/test-libunwind-x86_64.c
index 5add2517b2a1..62ae4db597dc 100644
--- a/tools/build/feature/test-libunwind-x86_64.c
+++ b/tools/build/feature/test-libunwind-x86_64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind-x86_64.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-libunwind.c b/tools/build/feature/test-libunwind.c
index 43b9369bcab7..53fd26614ff0 100644
--- a/tools/build/feature/test-libunwind.c
+++ b/tools/build/feature/test-libunwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <libunwind.h>
 #include <stdlib.h>
 
diff --git a/tools/build/feature/test-llvm-version.cpp b/tools/build/feature/test-llvm-version.cpp
index 896d31724568..8a091625446a 100644
--- a/tools/build/feature/test-llvm-version.cpp
+++ b/tools/build/feature/test-llvm-version.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <cstdio>
 #include "llvm/Config/llvm-config.h"
 
diff --git a/tools/build/feature/test-llvm.cpp b/tools/build/feature/test-llvm.cpp
index 455a332dc8a8..88a3d1bdd9f6 100644
--- a/tools/build/feature/test-llvm.cpp
+++ b/tools/build/feature/test-llvm.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/raw_ostream.h"
 #define NUM_VERSION (((LLVM_VERSION_MAJOR) << 16) + (LLVM_VERSION_MINOR << 8) + LLVM_VERSION_PATCH)
diff --git a/tools/build/feature/test-lzma.c b/tools/build/feature/test-lzma.c
index 95adc8ced3dd..78682bb01d57 100644
--- a/tools/build/feature/test-lzma.c
+++ b/tools/build/feature/test-lzma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <lzma.h>
 
 int main(void)
diff --git a/tools/build/feature/test-numa_num_possible_cpus.c b/tools/build/feature/test-numa_num_possible_cpus.c
index 2606e94b0659..573d07b9c570 100644
--- a/tools/build/feature/test-numa_num_possible_cpus.c
+++ b/tools/build/feature/test-numa_num_possible_cpus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <numa.h>
 
 int main(void)
diff --git a/tools/build/feature/test-pthread-attr-setaffinity-np.c b/tools/build/feature/test-pthread-attr-setaffinity-np.c
index fdada5e8d454..38c71131c452 100644
--- a/tools/build/feature/test-pthread-attr-setaffinity-np.c
+++ b/tools/build/feature/test-pthread-attr-setaffinity-np.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdint.h>
 #include <pthread.h>
 #include <sched.h>
diff --git a/tools/build/feature/test-sched_getcpu.c b/tools/build/feature/test-sched_getcpu.c
index 9c6b4cbffb1c..e448deb4124c 100644
--- a/tools/build/feature/test-sched_getcpu.c
+++ b/tools/build/feature/test-sched_getcpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE
 #endif
diff --git a/tools/build/feature/test-sdt.c b/tools/build/feature/test-sdt.c
index e4531a6e80ea..22737b0dadc8 100644
--- a/tools/build/feature/test-sdt.c
+++ b/tools/build/feature/test-sdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/sdt.h>
 
 int main(void)
diff --git a/tools/build/feature/test-stackprotector-all.c b/tools/build/feature/test-stackprotector-all.c
index c9f398d87868..c8a57194f9f2 100644
--- a/tools/build/feature/test-stackprotector-all.c
+++ b/tools/build/feature/test-stackprotector-all.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 
 int main(void)
diff --git a/tools/build/feature/test-sync-compare-and-swap.c b/tools/build/feature/test-sync-compare-and-swap.c
index c34d4ca4af56..1e38d1930a97 100644
--- a/tools/build/feature/test-sync-compare-and-swap.c
+++ b/tools/build/feature/test-sync-compare-and-swap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdint.h>
 
 volatile uint64_t x;
diff --git a/tools/build/feature/test-timerfd.c b/tools/build/feature/test-timerfd.c
index 8c5c083b4d3c..9c72c697a9df 100644
--- a/tools/build/feature/test-timerfd.c
+++ b/tools/build/feature/test-timerfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * test for timerfd functions used by perf-kvm-stat-live
  */
diff --git a/tools/build/feature/test-zlib.c b/tools/build/feature/test-zlib.c
index e111fff6240e..da6c35794b93 100644
--- a/tools/build/feature/test-zlib.c
+++ b/tools/build/feature/test-zlib.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <zlib.h>
 
 int main(void)
diff --git a/tools/build/fixdep.c b/tools/build/fixdep.c
index 734d1547cbae..2501fea7aa3e 100644
--- a/tools/build/fixdep.c
+++ b/tools/build/fixdep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * "Optimize" a list of dependencies as spit out by gcc -MD
  * for the build framework.
diff --git a/tools/build/tests/ex/Makefile b/tools/build/tests/ex/Makefile
index 027d6c8a58a7..fee032e06a85 100644
--- a/tools/build/tests/ex/Makefile
+++ b/tools/build/tests/ex/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 export srctree := $(abspath ../../../..)
 export CC      := gcc
 export LD      := ld
diff --git a/tools/build/tests/ex/a.c b/tools/build/tests/ex/a.c
index 851762798c83..66017a9f40b6 100644
--- a/tools/build/tests/ex/a.c
+++ b/tools/build/tests/ex/a.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int a(void)
 {
diff --git a/tools/build/tests/ex/arch/e.c b/tools/build/tests/ex/arch/e.c
index beaa4a1d7ba8..f6ef585b570c 100644
--- a/tools/build/tests/ex/arch/e.c
+++ b/tools/build/tests/ex/arch/e.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int e(void)
 {
diff --git a/tools/build/tests/ex/arch/f.c b/tools/build/tests/ex/arch/f.c
index 7c3e9e9da5b7..bffd9c67e9af 100644
--- a/tools/build/tests/ex/arch/f.c
+++ b/tools/build/tests/ex/arch/f.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int f(void)
 {
diff --git a/tools/build/tests/ex/b.c b/tools/build/tests/ex/b.c
index c24ff9ca9a97..2b29fb4d3c20 100644
--- a/tools/build/tests/ex/b.c
+++ b/tools/build/tests/ex/b.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int b(void)
 {
diff --git a/tools/build/tests/ex/c.c b/tools/build/tests/ex/c.c
index e216d0217499..a63b20ab83d5 100644
--- a/tools/build/tests/ex/c.c
+++ b/tools/build/tests/ex/c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int c(void)
 {
diff --git a/tools/build/tests/ex/d.c b/tools/build/tests/ex/d.c
index 80dc0f06151b..e114e8dca0b6 100644
--- a/tools/build/tests/ex/d.c
+++ b/tools/build/tests/ex/d.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int d(void)
 {
diff --git a/tools/build/tests/ex/ex.c b/tools/build/tests/ex/ex.c
index 57de6074d252..3c02756ef912 100644
--- a/tools/build/tests/ex/ex.c
+++ b/tools/build/tests/ex/ex.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 int a(void);
 int b(void);
diff --git a/tools/build/tests/ex/inc.c b/tools/build/tests/ex/inc.c
index c20f1e9033a3..3636ab5bf339 100644
--- a/tools/build/tests/ex/inc.c
+++ b/tools/build/tests/ex/inc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifdef INCLUDE
 #include "krava.h"
 #endif
diff --git a/tools/build/tests/run.sh b/tools/build/tests/run.sh
index 44d2a0fade67..2c54e4d43546 100755
--- a/tools/build/tests/run.sh
+++ b/tools/build/tests/run.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 function test_ex {
 	make -C ex V=1 clean > ex.out 2>&1
diff --git a/tools/cgroup/Makefile b/tools/cgroup/Makefile
index b4286196b763..860fa151640a 100644
--- a/tools/cgroup/Makefile
+++ b/tools/cgroup/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for cgroup tools
 
 CC = $(CROSS_COMPILE)gcc
diff --git a/tools/cgroup/cgroup_event_listener.c b/tools/cgroup/cgroup_event_listener.c
index 4eb5507205c9..3d70dc831a76 100644
--- a/tools/cgroup/cgroup_event_listener.c
+++ b/tools/cgroup/cgroup_event_listener.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * cgroup_event_listener.c - Simple listener of cgroup events
  *
diff --git a/tools/firewire/Makefile b/tools/firewire/Makefile
index 81767adaae7d..67b6e9fca83c 100644
--- a/tools/firewire/Makefile
+++ b/tools/firewire/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 prefix = /usr
 nosy-dump-version = 0.4
 
diff --git a/tools/firewire/decode-fcp.c b/tools/firewire/decode-fcp.c
index e41223b6a4c8..b67ebc88434d 100644
--- a/tools/firewire/decode-fcp.c
+++ b/tools/firewire/decode-fcp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/firewire-constants.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/tools/firewire/list.h b/tools/firewire/list.h
index 41f4bdadf634..6278d08e99e3 100644
--- a/tools/firewire/list.h
+++ b/tools/firewire/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 struct list {
 	struct list *next, *prev;
 };
diff --git a/tools/firewire/nosy-dump.h b/tools/firewire/nosy-dump.h
index 3a4b5b33ba5d..69e5e594f284 100644
--- a/tools/firewire/nosy-dump.h
+++ b/tools/firewire/nosy-dump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __nosy_dump_h__
 #define __nosy_dump_h__
 
diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index b4401536cfa9..805a2c0cf4cd 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include ../scripts/Makefile.include
 
 bindir ?= /usr/bin
diff --git a/tools/hv/Makefile b/tools/hv/Makefile
index 0d1e61b81844..31503819454d 100644
--- a/tools/hv/Makefile
+++ b/tools/hv/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for Hyper-V tools
 
 CC = $(CROSS_COMPILE)gcc
diff --git a/tools/hv/hv_get_dhcp_info.sh b/tools/hv/hv_get_dhcp_info.sh
index ccd3e9532764..c38686c44656 100755
--- a/tools/hv/hv_get_dhcp_info.sh
+++ b/tools/hv/hv_get_dhcp_info.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 # This example script retrieves the DHCP state of a given interface.
 # In the interest of keeping the KVP daemon code free of distro specific
diff --git a/tools/hv/hv_set_ifconfig.sh b/tools/hv/hv_set_ifconfig.sh
index 735aafd64a3f..7ed9f85ef908 100755
--- a/tools/hv/hv_set_ifconfig.sh
+++ b/tools/hv/hv_set_ifconfig.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 # This example script activates an interface based on the specified
 # configuration.
diff --git a/tools/hv/lsvmbus b/tools/hv/lsvmbus
index e8fecd61871f..353e56768df8 100644
--- a/tools/hv/lsvmbus
+++ b/tools/hv/lsvmbus
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: GPL-2.0
 
 import os
 from optparse import OptionParser
diff --git a/tools/iio/Makefile b/tools/iio/Makefile
index d4d956020adf..a08e7a47d6a3 100644
--- a/tools/iio/Makefile
+++ b/tools/iio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include ../scripts/Makefile.include
 
 bindir ?= /usr/bin
diff --git a/tools/include/asm-generic/atomic-gcc.h b/tools/include/asm-generic/atomic-gcc.h
index 5e9738f97bf3..4c1966f7c77a 100644
--- a/tools/include/asm-generic/atomic-gcc.h
+++ b/tools/include/asm-generic/atomic-gcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_ASM_GENERIC_ATOMIC_H
 #define __TOOLS_ASM_GENERIC_ATOMIC_H
 
@@ -21,7 +22,7 @@
  */
 static inline int atomic_read(const atomic_t *v)
 {
-	return ACCESS_ONCE((v)->counter);
+	return READ_ONCE((v)->counter);
 }
 
 /**
diff --git a/tools/include/asm-generic/bitops.h b/tools/include/asm-generic/bitops.h
index 0304600121da..9bce3b56b5e7 100644
--- a/tools/include/asm-generic/bitops.h
+++ b/tools/include/asm-generic/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_ASM_GENERIC_BITOPS_H
 #define __TOOLS_ASM_GENERIC_BITOPS_H
 
diff --git a/tools/include/asm-generic/bitops/__ffs.h b/tools/include/asm-generic/bitops/__ffs.h
index b3accfdf24b9..9d1310519497 100644
--- a/tools/include/asm-generic/bitops/__ffs.h
+++ b/tools/include/asm-generic/bitops/__ffs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
 #define _TOOLS_LINUX_ASM_GENERIC_BITOPS___FFS_H_
 
diff --git a/tools/include/asm-generic/bitops/__fls.h b/tools/include/asm-generic/bitops/__fls.h
index a60a7ccb6782..03f721a8a2b1 100644
--- a/tools/include/asm-generic/bitops/__fls.h
+++ b/tools/include/asm-generic/bitops/__fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS___FLS_H_
 #define _ASM_GENERIC_BITOPS___FLS_H_
 
diff --git a/tools/include/asm-generic/bitops/arch_hweight.h b/tools/include/asm-generic/bitops/arch_hweight.h
index 6a211f40665c..c2705e1d220d 100644
--- a/tools/include/asm-generic/bitops/arch_hweight.h
+++ b/tools/include/asm-generic/bitops/arch_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_ARCH_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_ARCH_HWEIGHT_H_
 
diff --git a/tools/include/asm-generic/bitops/atomic.h b/tools/include/asm-generic/bitops/atomic.h
index 68b8c1516c5a..21c41ccd1266 100644
--- a/tools/include/asm-generic/bitops/atomic.h
+++ b/tools/include/asm-generic/bitops/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
 #define _TOOLS_LINUX_ASM_GENERIC_BITOPS_ATOMIC_H_
 
diff --git a/tools/include/asm-generic/bitops/const_hweight.h b/tools/include/asm-generic/bitops/const_hweight.h
index 0a7e06623470..149faeeeeaf2 100644
--- a/tools/include/asm-generic/bitops/const_hweight.h
+++ b/tools/include/asm-generic/bitops/const_hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
 #define _ASM_GENERIC_BITOPS_CONST_HWEIGHT_H_
 
diff --git a/tools/include/asm-generic/bitops/find.h b/tools/include/asm-generic/bitops/find.h
index 5538ecdc964a..9311fadaaab2 100644
--- a/tools/include/asm-generic/bitops/find.h
+++ b/tools/include/asm-generic/bitops/find.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_
 #define _TOOLS_LINUX_ASM_GENERIC_BITOPS_FIND_H_
 
diff --git a/tools/include/asm-generic/bitops/fls.h b/tools/include/asm-generic/bitops/fls.h
index 0576d1f42f43..753aecaab641 100644
--- a/tools/include/asm-generic/bitops/fls.h
+++ b/tools/include/asm-generic/bitops/fls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FLS_H_
 #define _ASM_GENERIC_BITOPS_FLS_H_
 
diff --git a/tools/include/asm-generic/bitops/fls64.h b/tools/include/asm-generic/bitops/fls64.h
index b097cf8444e3..866f2b2304ff 100644
--- a/tools/include/asm-generic/bitops/fls64.h
+++ b/tools/include/asm-generic/bitops/fls64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _ASM_GENERIC_BITOPS_FLS64_H_
 #define _ASM_GENERIC_BITOPS_FLS64_H_
 
diff --git a/tools/include/asm-generic/bitops/hweight.h b/tools/include/asm-generic/bitops/hweight.h
index 290120c01a8e..3e681982bcd1 100644
--- a/tools/include/asm-generic/bitops/hweight.h
+++ b/tools/include/asm-generic/bitops/hweight.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_
 #define _TOOLS_LINUX_ASM_GENERIC_BITOPS_HWEIGHT_H_
 
diff --git a/tools/include/asm-generic/bitsperlong.h b/tools/include/asm-generic/bitsperlong.h
index 45eca517efb3..8f2283052333 100644
--- a/tools/include/asm-generic/bitsperlong.h
+++ b/tools/include/asm-generic/bitsperlong.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ASM_GENERIC_BITS_PER_LONG
 #define __ASM_GENERIC_BITS_PER_LONG
 
diff --git a/tools/include/asm-generic/hugetlb_encode.h b/tools/include/asm-generic/hugetlb_encode.h
new file mode 100644
index 000000000000..e4732d3c2998
--- /dev/null
+++ b/tools/include/asm-generic/hugetlb_encode.h
@@ -0,0 +1,34 @@
+#ifndef _ASM_GENERIC_HUGETLB_ENCODE_H_
+#define _ASM_GENERIC_HUGETLB_ENCODE_H_
+
+/*
+ * Several system calls take a flag to request "hugetlb" huge pages.
+ * Without further specification, these system calls will use the
+ * system's default huge page size.  If a system supports multiple
+ * huge page sizes, the desired huge page size can be specified in
+ * bits [26:31] of the flag arguments.  The value in these 6 bits
+ * will encode the log2 of the huge page size.
+ *
+ * The following definitions are associated with this huge page size
+ * encoding in flag arguments.  System call specific header files
+ * that use this encoding should include this file.  They can then
+ * provide definitions based on these with their own specific prefix.
+ * for example:
+ * #define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT
+ */
+
+#define HUGETLB_FLAG_ENCODE_SHIFT	26
+#define HUGETLB_FLAG_ENCODE_MASK	0x3f
+
+#define HUGETLB_FLAG_ENCODE_64KB	(16 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_512KB	(19 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_1MB		(20 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_2MB		(21 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_8MB		(23 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_16MB	(24 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_256MB	(28 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_1GB		(30 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_2GB		(31 << HUGETLB_FLAG_ENCODE_SHIFT)
+#define HUGETLB_FLAG_ENCODE_16GB	(34 << HUGETLB_FLAG_ENCODE_SHIFT)
+
+#endif /* _ASM_GENERIC_HUGETLB_ENCODE_H_ */
diff --git a/tools/include/asm/alternative-asm.h b/tools/include/asm/alternative-asm.h
index 2a4d1bfa2988..b54bd860dff6 100644
--- a/tools/include/asm/alternative-asm.h
+++ b/tools/include/asm/alternative-asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_ASM_ALTERNATIVE_ASM_H
 #define _TOOLS_ASM_ALTERNATIVE_ASM_H
 
diff --git a/tools/include/asm/atomic.h b/tools/include/asm/atomic.h
index 70794f538a86..8c9bfffd4191 100644
--- a/tools/include/asm/atomic.h
+++ b/tools/include/asm/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_ASM_ATOMIC_H
 #define __TOOLS_LINUX_ASM_ATOMIC_H
 
diff --git a/tools/include/asm/barrier.h b/tools/include/asm/barrier.h
index ac66ac594685..391d942536e5 100644
--- a/tools/include/asm/barrier.h
+++ b/tools/include/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if defined(__i386__) || defined(__x86_64__)
 #include "../../arch/x86/include/asm/barrier.h"
 #elif defined(__arm__)
diff --git a/tools/include/asm/bug.h b/tools/include/asm/bug.h
index 4790f047a89c..bbd75ac8b202 100644
--- a/tools/include/asm/bug.h
+++ b/tools/include/asm/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_ASM_BUG_H
 #define _TOOLS_ASM_BUG_H
 
diff --git a/tools/include/asm/export.h b/tools/include/asm/export.h
new file mode 100644
index 000000000000..2cb1a0d83035
--- /dev/null
+++ b/tools/include/asm/export.h
@@ -0,0 +1,7 @@
+#ifndef _TOOLS_ASM_EXPORT_H
+#define _TOOLS_ASM_EXPORT_H
+
+#define EXPORT_SYMBOL(x)
+#define EXPORT_SYMBOL_GPL(x)
+
+#endif /* _TOOLS_ASM_EXPORT_H */
diff --git a/tools/include/linux/atomic.h b/tools/include/linux/atomic.h
index 9f21fc2b092b..00a6c4ca562b 100644
--- a/tools/include/linux/atomic.h
+++ b/tools/include/linux/atomic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_ATOMIC_H
 #define __TOOLS_LINUX_ATOMIC_H
 
diff --git a/tools/include/linux/bitmap.h b/tools/include/linux/bitmap.h
index e8b9f518e36b..ca160270fdfa 100644
--- a/tools/include/linux/bitmap.h
+++ b/tools/include/linux/bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_BITOPS_H
 #define _PERF_BITOPS_H
 
diff --git a/tools/include/linux/bitops.h b/tools/include/linux/bitops.h
index 969db1981868..acc704bd3998 100644
--- a/tools/include/linux/bitops.h
+++ b/tools/include/linux/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_BITOPS_H_
 #define _TOOLS_LINUX_BITOPS_H_
 
diff --git a/tools/include/linux/bug.h b/tools/include/linux/bug.h
index 8e4a4f49135d..85f80258a15f 100644
--- a/tools/include/linux/bug.h
+++ b/tools/include/linux/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_PERF_LINUX_BUG_H
 #define _TOOLS_PERF_LINUX_BUG_H
 
diff --git a/tools/include/linux/compiler-gcc.h b/tools/include/linux/compiler-gcc.h
index bd39b2090ad1..a3a4427441bf 100644
--- a/tools/include/linux/compiler-gcc.h
+++ b/tools/include/linux/compiler-gcc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_COMPILER_H_
 #error "Please don't include <linux/compiler-gcc.h> directly, include <linux/compiler.h> instead."
 #endif
@@ -21,11 +22,14 @@
 #define __must_be_array(a)	BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
 
 #define  noinline	__attribute__((noinline))
-
+#ifndef __packed
 #define __packed	__attribute__((packed))
-
+#endif
+#ifndef __noreturn
 #define __noreturn	__attribute__((noreturn))
-
+#endif
+#ifndef __aligned
 #define __aligned(x)	__attribute__((aligned(x)))
+#endif
 #define __printf(a, b)	__attribute__((format(printf, a, b)))
 #define __scanf(a, b)	__attribute__((format(scanf, a, b)))
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index d7a5604c38d7..07fd03c74a77 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_COMPILER_H_
 #define _TOOLS_LINUX_COMPILER_H_
 
diff --git a/tools/include/linux/debug_locks.h b/tools/include/linux/debug_locks.h
index 61cc7f501168..72d595ce764a 100644
--- a/tools/include/linux/debug_locks.h
+++ b/tools/include/linux/debug_locks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_DEBUG_LOCKS_H_
 #define _LIBLOCKDEP_DEBUG_LOCKS_H_
 
diff --git a/tools/include/linux/err.h b/tools/include/linux/err.h
index abf0478a8fb2..7a8b61ad44cb 100644
--- a/tools/include/linux/err.h
+++ b/tools/include/linux/err.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_ERR_H
 #define __TOOLS_LINUX_ERR_H
 
diff --git a/tools/include/linux/filter.h b/tools/include/linux/filter.h
index 4ce25d43e8e3..c5e512da8d8a 100644
--- a/tools/include/linux/filter.h
+++ b/tools/include/linux/filter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Linux Socket Filter Data Structures
  */
diff --git a/tools/include/linux/hardirq.h b/tools/include/linux/hardirq.h
index c8f3f8f58729..b25580b6a9be 100644
--- a/tools/include/linux/hardirq.h
+++ b/tools/include/linux/hardirq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LINUX_HARDIRQ_H_
 #define _LIBLOCKDEP_LINUX_HARDIRQ_H_
 
diff --git a/tools/include/linux/hashtable.h b/tools/include/linux/hashtable.h
index 251eabf2a05e..434dd5ac6d71 100644
--- a/tools/include/linux/hashtable.h
+++ b/tools/include/linux/hashtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Statically sized hash table implementation
  * (C) 2012  Sasha Levin <levinsasha928@gmail.com>
diff --git a/tools/include/linux/irqflags.h b/tools/include/linux/irqflags.h
index df77669cfe1c..e734da3e5b33 100644
--- a/tools/include/linux/irqflags.h
+++ b/tools/include/linux/irqflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LINUX_TRACE_IRQFLAGS_H_
 #define _LIBLOCKDEP_LINUX_TRACE_IRQFLAGS_H_
 
diff --git a/tools/include/linux/kallsyms.h b/tools/include/linux/kallsyms.h
index 582cc1e5f3a4..89ca6fe257cc 100644
--- a/tools/include/linux/kallsyms.h
+++ b/tools/include/linux/kallsyms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LINUX_KALLSYMS_H_
 #define _LIBLOCKDEP_LINUX_KALLSYMS_H_
 
diff --git a/tools/include/linux/kern_levels.h b/tools/include/linux/kern_levels.h
index 3b9bade28698..778ecb984480 100644
--- a/tools/include/linux/kern_levels.h
+++ b/tools/include/linux/kern_levels.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KERN_LEVELS_H__
 #define __KERN_LEVELS_H__
 
diff --git a/tools/include/linux/kernel.h b/tools/include/linux/kernel.h
index 77d2e94ca5df..0ad884452c5c 100644
--- a/tools/include/linux/kernel.h
+++ b/tools/include/linux/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_KERNEL_H
 #define __TOOLS_LINUX_KERNEL_H
 
diff --git a/tools/include/linux/kmemcheck.h b/tools/include/linux/kmemcheck.h
index 94d598bc6abe..2bccd2c7b897 100644
--- a/tools/include/linux/kmemcheck.h
+++ b/tools/include/linux/kmemcheck.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LINUX_KMEMCHECK_H_
 #define _LIBLOCKDEP_LINUX_KMEMCHECK_H_
 
diff --git a/tools/include/linux/list.h b/tools/include/linux/list.h
index 1da423820ad4..b2fc48d5478c 100644
--- a/tools/include/linux/list.h
+++ b/tools/include/linux/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_LINUX_LIST_H
 #define __TOOLS_LINUX_LIST_H
 
diff --git a/tools/include/linux/lockdep.h b/tools/include/linux/lockdep.h
index 8da3e8effafa..940c1b075659 100644
--- a/tools/include/linux/lockdep.h
+++ b/tools/include/linux/lockdep.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LOCKDEP_H_
 #define _LIBLOCKDEP_LOCKDEP_H_
 
diff --git a/tools/include/linux/module.h b/tools/include/linux/module.h
index 07055db296f3..2c999abf68e7 100644
--- a/tools/include/linux/module.h
+++ b/tools/include/linux/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LINUX_MODULE_H_
 #define _LIBLOCKDEP_LINUX_MODULE_H_
 
diff --git a/tools/include/linux/poison.h b/tools/include/linux/poison.h
index 51334edec506..9fdcd3eaac3b 100644
--- a/tools/include/linux/poison.h
+++ b/tools/include/linux/poison.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_POISON_H
 #define _LINUX_POISON_H
 
@@ -14,6 +15,10 @@
 # define POISON_POINTER_DELTA 0
 #endif
 
+#ifdef __cplusplus
+#define LIST_POISON1  NULL
+#define LIST_POISON2  NULL
+#else
 /*
  * These are non-NULL pointers that will result in page faults
  * under normal circumstances, used to verify that nobody uses
@@ -21,6 +26,7 @@
  */
 #define LIST_POISON1  ((void *) 0x100 + POISON_POINTER_DELTA)
 #define LIST_POISON2  ((void *) 0x200 + POISON_POINTER_DELTA)
+#endif
 
 /********** include/linux/timer.h **********/
 /*
diff --git a/tools/include/linux/rcu.h b/tools/include/linux/rcu.h
index 5080649dad04..7d02527e5bce 100644
--- a/tools/include/linux/rcu.h
+++ b/tools/include/linux/rcu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_RCU_H_
 #define _LIBLOCKDEP_RCU_H_
 
diff --git a/tools/include/linux/refcount.h b/tools/include/linux/refcount.h
index a0177c1f55b1..36cb29bc57c2 100644
--- a/tools/include/linux/refcount.h
+++ b/tools/include/linux/refcount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_REFCOUNT_H
 #define _TOOLS_LINUX_REFCOUNT_H
 
diff --git a/tools/include/linux/spinlock.h b/tools/include/linux/spinlock.h
index 417cda4f793f..4ed569fcb139 100644
--- a/tools/include/linux/spinlock.h
+++ b/tools/include/linux/spinlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_SPINLOCK_H_
 #define __LINUX_SPINLOCK_H_
 
diff --git a/tools/include/linux/stacktrace.h b/tools/include/linux/stacktrace.h
index 39aecc6b19d1..ae343ac35bfa 100644
--- a/tools/include/linux/stacktrace.h
+++ b/tools/include/linux/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_LINUX_STACKTRACE_H_
 #define _LIBLOCKDEP_LINUX_STACKTRACE_H_
 
diff --git a/tools/include/linux/string.h b/tools/include/linux/string.h
index a30fad536f52..6c3e2cc274c5 100644
--- a/tools/include/linux/string.h
+++ b/tools/include/linux/string.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_STRING_H_
 #define _TOOLS_LINUX_STRING_H_
 
diff --git a/tools/include/linux/stringify.h b/tools/include/linux/stringify.h
index 841cec8ed525..60e2c187da2c 100644
--- a/tools/include/linux/stringify.h
+++ b/tools/include/linux/stringify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_STRINGIFY_H
 #define __LINUX_STRINGIFY_H
 
diff --git a/tools/include/linux/time64.h b/tools/include/linux/time64.h
index df9265483d65..55fa644b95fd 100644
--- a/tools/include/linux/time64.h
+++ b/tools/include/linux/time64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_TIME64_H
 #define _TOOLS_LINUX_TIME64_H
 
diff --git a/tools/include/linux/types.h b/tools/include/linux/types.h
index 77a28a26a670..154eb4e3ca7c 100644
--- a/tools/include/linux/types.h
+++ b/tools/include/linux/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LINUX_TYPES_H_
 #define _TOOLS_LINUX_TYPES_H_
 
diff --git a/tools/include/linux/unaligned/packed_struct.h b/tools/include/linux/unaligned/packed_struct.h
index c0d817de4df2..dbd93c7df2e1 100644
--- a/tools/include/linux/unaligned/packed_struct.h
+++ b/tools/include/linux/unaligned/packed_struct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_UNALIGNED_PACKED_STRUCT_H
 #define _LINUX_UNALIGNED_PACKED_STRUCT_H
 
diff --git a/tools/include/tools/be_byteshift.h b/tools/include/tools/be_byteshift.h
index 84c17d836578..f7d1d1698938 100644
--- a/tools/include/tools/be_byteshift.h
+++ b/tools/include/tools/be_byteshift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_BE_BYTESHIFT_H
 #define _TOOLS_BE_BYTESHIFT_H
 
diff --git a/tools/include/tools/endian.h b/tools/include/tools/endian.h
index 8001194008da..c67888fd427e 100644
--- a/tools/include/tools/endian.h
+++ b/tools/include/tools/endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_ENDIAN_H
 #define _TOOLS_ENDIAN_H
 
diff --git a/tools/include/tools/le_byteshift.h b/tools/include/tools/le_byteshift.h
index 8fe9f2488ec7..dc8565f39717 100644
--- a/tools/include/tools/le_byteshift.h
+++ b/tools/include/tools/le_byteshift.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TOOLS_LE_BYTESHIFT_H
 #define _TOOLS_LE_BYTESHIFT_H
 
diff --git a/tools/include/uapi/asm-generic/ioctls.h b/tools/include/uapi/asm-generic/ioctls.h
index 14baf9f23a14..040651735662 100644
--- a/tools/include/uapi/asm-generic/ioctls.h
+++ b/tools/include/uapi/asm-generic/ioctls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_IOCTLS_H
 #define __ASM_GENERIC_IOCTLS_H
 
diff --git a/tools/include/uapi/asm-generic/mman-common.h b/tools/include/uapi/asm-generic/mman-common.h
index 8c27db0c5c08..6d319c46fd90 100644
--- a/tools/include/uapi/asm-generic/mman-common.h
+++ b/tools/include/uapi/asm-generic/mman-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_MMAN_COMMON_H
 #define __ASM_GENERIC_MMAN_COMMON_H
 
@@ -58,20 +59,12 @@
 					   overrides the coredump filter bits */
 #define MADV_DODUMP	17		/* Clear the MADV_DONTDUMP flag */
 
+#define MADV_WIPEONFORK 18		/* Zero memory on fork, child only */
+#define MADV_KEEPONFORK 19		/* Undo MADV_WIPEONFORK */
+
 /* compatibility flags */
 #define MAP_FILE	0
 
-/*
- * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size.
- * This gives us 6 bits, which is enough until someone invents 128 bit address
- * spaces.
- *
- * Assume these are all power of twos.
- * When 0 use the default page size.
- */
-#define MAP_HUGE_SHIFT	26
-#define MAP_HUGE_MASK	0x3f
-
 #define PKEY_DISABLE_ACCESS	0x1
 #define PKEY_DISABLE_WRITE	0x2
 #define PKEY_ACCESS_MASK	(PKEY_DISABLE_ACCESS |\
diff --git a/tools/include/uapi/asm-generic/mman.h b/tools/include/uapi/asm-generic/mman.h
index 10fa7857777f..2dffcbf705b3 100644
--- a/tools/include/uapi/asm-generic/mman.h
+++ b/tools/include/uapi/asm-generic/mman.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __ASM_GENERIC_MMAN_H
 #define __ASM_GENERIC_MMAN_H
 
-#include <uapi/asm-generic/mman-common.h>
+#include <asm-generic/mman-common.h>
 
 #define MAP_GROWSDOWN	0x0100		/* stack-like segment */
 #define MAP_DENYWRITE	0x0800		/* ETXTBSY */
diff --git a/tools/include/uapi/drm/drm.h b/tools/include/uapi/drm/drm.h
index 101593ab10ac..97677cd6964d 100644
--- a/tools/include/uapi/drm/drm.h
+++ b/tools/include/uapi/drm/drm.h
@@ -700,6 +700,7 @@ struct drm_prime_handle {
 
 struct drm_syncobj_create {
 	__u32 handle;
+#define DRM_SYNCOBJ_CREATE_SIGNALED (1 << 0)
 	__u32 flags;
 };
 
@@ -718,6 +719,24 @@ struct drm_syncobj_handle {
 	__u32 pad;
 };
 
+#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL (1 << 0)
+#define DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT (1 << 1)
+struct drm_syncobj_wait {
+	__u64 handles;
+	/* absolute timeout */
+	__s64 timeout_nsec;
+	__u32 count_handles;
+	__u32 flags;
+	__u32 first_signaled; /* only valid when not waiting all */
+	__u32 pad;
+};
+
+struct drm_syncobj_array {
+	__u64 handles;
+	__u32 count_handles;
+	__u32 pad;
+};
+
 #if defined(__cplusplus)
 }
 #endif
@@ -840,6 +859,9 @@ extern "C" {
 #define DRM_IOCTL_SYNCOBJ_DESTROY	DRM_IOWR(0xC0, struct drm_syncobj_destroy)
 #define DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD	DRM_IOWR(0xC1, struct drm_syncobj_handle)
 #define DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE	DRM_IOWR(0xC2, struct drm_syncobj_handle)
+#define DRM_IOCTL_SYNCOBJ_WAIT		DRM_IOWR(0xC3, struct drm_syncobj_wait)
+#define DRM_IOCTL_SYNCOBJ_RESET		DRM_IOWR(0xC4, struct drm_syncobj_array)
+#define DRM_IOCTL_SYNCOBJ_SIGNAL	DRM_IOWR(0xC5, struct drm_syncobj_array)
 
 /**
  * Device specific ioctls should only be in their respective headers
diff --git a/tools/include/uapi/drm/i915_drm.h b/tools/include/uapi/drm/i915_drm.h
index 7ccbd6a2bbe0..9816590d3ad2 100644
--- a/tools/include/uapi/drm/i915_drm.h
+++ b/tools/include/uapi/drm/i915_drm.h
@@ -260,6 +260,8 @@ typedef struct _drm_i915_sarea {
 #define DRM_I915_GEM_CONTEXT_GETPARAM	0x34
 #define DRM_I915_GEM_CONTEXT_SETPARAM	0x35
 #define DRM_I915_PERF_OPEN		0x36
+#define DRM_I915_PERF_ADD_CONFIG	0x37
+#define DRM_I915_PERF_REMOVE_CONFIG	0x38
 
 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -315,6 +317,8 @@ typedef struct _drm_i915_sarea {
 #define DRM_IOCTL_I915_GEM_CONTEXT_GETPARAM	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_GETPARAM, struct drm_i915_gem_context_param)
 #define DRM_IOCTL_I915_GEM_CONTEXT_SETPARAM	DRM_IOWR (DRM_COMMAND_BASE + DRM_I915_GEM_CONTEXT_SETPARAM, struct drm_i915_gem_context_param)
 #define DRM_IOCTL_I915_PERF_OPEN	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_OPEN, struct drm_i915_perf_open_param)
+#define DRM_IOCTL_I915_PERF_ADD_CONFIG	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_ADD_CONFIG, struct drm_i915_perf_oa_config)
+#define DRM_IOCTL_I915_PERF_REMOVE_CONFIG	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_PERF_REMOVE_CONFIG, __u64)
 
 /* Allow drivers to submit batchbuffers directly to hardware, relying
  * on the security mechanisms provided by hardware.
@@ -431,6 +435,11 @@ typedef struct drm_i915_irq_wait {
  */
 #define I915_PARAM_HAS_EXEC_BATCH_FIRST	 48
 
+/* Query whether DRM_I915_GEM_EXECBUFFER2 supports supplying an array of
+ * drm_i915_gem_exec_fence structures.  See I915_EXEC_FENCE_ARRAY.
+ */
+#define I915_PARAM_HAS_EXEC_FENCE_ARRAY  49
+
 typedef struct drm_i915_getparam {
 	__s32 param;
 	/*
@@ -812,6 +821,18 @@ struct drm_i915_gem_exec_object2 {
 	__u64 rsvd2;
 };
 
+struct drm_i915_gem_exec_fence {
+	/**
+	 * User's handle for a drm_syncobj to wait on or signal.
+	 */
+	__u32 handle;
+
+#define I915_EXEC_FENCE_WAIT            (1<<0)
+#define I915_EXEC_FENCE_SIGNAL          (1<<1)
+#define __I915_EXEC_FENCE_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_SIGNAL << 1))
+	__u32 flags;
+};
+
 struct drm_i915_gem_execbuffer2 {
 	/**
 	 * List of gem_exec_object2 structs
@@ -826,7 +847,11 @@ struct drm_i915_gem_execbuffer2 {
 	__u32 DR1;
 	__u32 DR4;
 	__u32 num_cliprects;
-	/** This is a struct drm_clip_rect *cliprects */
+	/**
+	 * This is a struct drm_clip_rect *cliprects if I915_EXEC_FENCE_ARRAY
+	 * is not set.  If I915_EXEC_FENCE_ARRAY is set, then this is a
+	 * struct drm_i915_gem_exec_fence *fences.
+	 */
 	__u64 cliprects_ptr;
 #define I915_EXEC_RING_MASK              (7<<0)
 #define I915_EXEC_DEFAULT                (0<<0)
@@ -927,7 +952,14 @@ struct drm_i915_gem_execbuffer2 {
  * element).
  */
 #define I915_EXEC_BATCH_FIRST		(1<<18)
-#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_BATCH_FIRST<<1))
+
+/* Setting I915_FENCE_ARRAY implies that num_cliprects and cliprects_ptr
+ * define an array of i915_gem_exec_fence structures which specify a set of
+ * dma fences to wait upon or signal.
+ */
+#define I915_EXEC_FENCE_ARRAY   (1<<19)
+
+#define __I915_EXEC_UNKNOWN_FLAGS (-(I915_EXEC_FENCE_ARRAY<<1))
 
 #define I915_EXEC_CONTEXT_ID_MASK	(0xffffffff)
 #define i915_execbuffer2_set_context_id(eb2, context) \
@@ -1467,6 +1499,22 @@ enum drm_i915_perf_record_type {
 	DRM_I915_PERF_RECORD_MAX /* non-ABI */
 };
 
+/**
+ * Structure to upload perf dynamic configuration into the kernel.
+ */
+struct drm_i915_perf_oa_config {
+	/** String formatted like "%08x-%04x-%04x-%04x-%012x" */
+	char uuid[36];
+
+	__u32 n_mux_regs;
+	__u32 n_boolean_regs;
+	__u32 n_flex_regs;
+
+	__u64 __user mux_regs_ptr;
+	__u64 __user boolean_regs_ptr;
+	__u64 __user flex_regs_ptr;
+};
+
 #if defined(__cplusplus)
 }
 #endif
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 461811e57140..30f2ce76b517 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /* Copyright (c) 2011-2014 PLUMgrid, http://plumgrid.com
  *
  * This program is free software; you can redistribute it and/or
@@ -143,12 +144,6 @@ enum bpf_attach_type {
 
 #define MAX_BPF_ATTACH_TYPE __MAX_BPF_ATTACH_TYPE
 
-enum bpf_sockmap_flags {
-	BPF_SOCKMAP_UNSPEC,
-	BPF_SOCKMAP_STRPARSER,
-	__MAX_BPF_SOCKMAP_FLAG
-};
-
 /* If BPF_F_ALLOW_OVERRIDE flag is used in BPF_PROG_ATTACH command
  * to the given target_fd cgroup the descendent cgroup will be able to
  * override effective bpf program that was inherited from this cgroup
@@ -318,7 +313,7 @@ union bpf_attr {
  *     jump into another BPF program
  *     @ctx: context pointer passed to next program
  *     @prog_array_map: pointer to map which type is BPF_MAP_TYPE_PROG_ARRAY
- *     @index: index inside array that selects specific program to run
+ *     @index: 32-bit index inside array that selects specific program to run
  *     Return: 0 on success or negative error
  *
  * int bpf_clone_redirect(skb, ifindex, flags)
@@ -368,9 +363,20 @@ union bpf_attr {
  * int bpf_redirect(ifindex, flags)
  *     redirect to another netdev
  *     @ifindex: ifindex of the net device
- *     @flags: bit 0 - if set, redirect to ingress instead of egress
- *             other bits - reserved
- *     Return: TC_ACT_REDIRECT
+ *     @flags:
+ *	  cls_bpf:
+ *          bit 0 - if set, redirect to ingress instead of egress
+ *          other bits - reserved
+ *	  xdp_bpf:
+ *	    all bits - reserved
+ *     Return: cls_bpf: TC_ACT_REDIRECT on success or TC_ACT_SHOT on error
+ *	       xdp_bfp: XDP_REDIRECT on success or XDP_ABORT on error
+ * int bpf_redirect_map(map, key, flags)
+ *     redirect to endpoint in map
+ *     @map: pointer to dev map
+ *     @key: index in map to lookup
+ *     @flags: --
+ *     Return: XDP_REDIRECT on success or XDP_ABORT on error
  *
  * u32 bpf_get_route_realm(skb)
  *     retrieve a dst's tclassid
@@ -570,7 +576,7 @@ union bpf_attr {
  *     @map: pointer to sockmap
  *     @key: key to lookup sock in map
  *     @flags: reserved for future use
- *     Return: SK_REDIRECT
+ *     Return: SK_PASS
  *
  * int bpf_sock_map_update(skops, map, key, flags)
  *	@skops: pointer to bpf_sock_ops
@@ -632,7 +638,7 @@ union bpf_attr {
 	FN(skb_adjust_room),		\
 	FN(redirect_map),		\
 	FN(sk_redirect_map),		\
-	FN(sock_map_update),
+	FN(sock_map_update),		\
 
 /* integer value in 'imm' field of BPF_CALL instruction selects which helper
  * function eBPF program intends to call
@@ -753,20 +759,23 @@ struct bpf_sock {
 	__u32 family;
 	__u32 type;
 	__u32 protocol;
+	__u32 mark;
+	__u32 priority;
 };
 
 #define XDP_PACKET_HEADROOM 256
 
 /* User return codes for XDP prog type.
  * A valid XDP program must return one of these defined values. All other
- * return codes are reserved for future use. Unknown return codes will result
- * in packet drop.
+ * return codes are reserved for future use. Unknown return codes will
+ * result in packet drops and a warning via bpf_warn_invalid_xdp_action().
  */
 enum xdp_action {
 	XDP_ABORTED = 0,
 	XDP_DROP,
 	XDP_PASS,
 	XDP_TX,
+	XDP_REDIRECT,
 };
 
 /* user accessible metadata for XDP packet hook
@@ -778,9 +787,8 @@ struct xdp_md {
 };
 
 enum sk_action {
-	SK_ABORTED = 0,
-	SK_DROP,
-	SK_REDIRECT,
+	SK_DROP = 0,
+	SK_PASS,
 };
 
 #define BPF_TAG_SIZE	8
diff --git a/tools/include/uapi/linux/bpf_common.h b/tools/include/uapi/linux/bpf_common.h
index a5c220e0828f..18be90725ab0 100644
--- a/tools/include/uapi/linux/bpf_common.h
+++ b/tools/include/uapi/linux/bpf_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI__LINUX_BPF_COMMON_H__
 #define _UAPI__LINUX_BPF_COMMON_H__
 
diff --git a/tools/include/uapi/linux/fcntl.h b/tools/include/uapi/linux/fcntl.h
index ec69d55bcec7..6448cdd9a350 100644
--- a/tools/include/uapi/linux/fcntl.h
+++ b/tools/include/uapi/linux/fcntl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_FCNTL_H
 #define _UAPI_LINUX_FCNTL_H
 
diff --git a/tools/include/uapi/linux/hw_breakpoint.h b/tools/include/uapi/linux/hw_breakpoint.h
index 2b65efd19a46..965e4d8606d8 100644
--- a/tools/include/uapi/linux/hw_breakpoint.h
+++ b/tools/include/uapi/linux/hw_breakpoint.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_HW_BREAKPOINT_H
 #define _UAPI_LINUX_HW_BREAKPOINT_H
 
diff --git a/tools/include/uapi/linux/kcmp.h b/tools/include/uapi/linux/kcmp.h
new file mode 100644
index 000000000000..481e103da78e
--- /dev/null
+++ b/tools/include/uapi/linux/kcmp.h
@@ -0,0 +1,27 @@
+#ifndef _UAPI_LINUX_KCMP_H
+#define _UAPI_LINUX_KCMP_H
+
+#include <linux/types.h>
+
+/* Comparison type */
+enum kcmp_type {
+	KCMP_FILE,
+	KCMP_VM,
+	KCMP_FILES,
+	KCMP_FS,
+	KCMP_SIGHAND,
+	KCMP_IO,
+	KCMP_SYSVSEM,
+	KCMP_EPOLL_TFD,
+
+	KCMP_TYPES,
+};
+
+/* Slot for KCMP_EPOLL_TFD */
+struct kcmp_epoll_slot {
+	__u32 efd;		/* epoll file descriptor */
+	__u32 tfd;		/* target file number */
+	__u32 toff;		/* target offset within same numbered sequence */
+};
+
+#endif /* _UAPI_LINUX_KCMP_H */
diff --git a/tools/include/uapi/linux/kvm.h b/tools/include/uapi/linux/kvm.h
index 6cd63c18708a..7e99999d6236 100644
--- a/tools/include/uapi/linux/kvm.h
+++ b/tools/include/uapi/linux/kvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef __LINUX_KVM_H
 #define __LINUX_KVM_H
 
@@ -711,7 +712,8 @@ struct kvm_ppc_one_seg_page_size {
 struct kvm_ppc_smmu_info {
 	__u64 flags;
 	__u32 slb_size;
-	__u32 pad;
+	__u16 data_keys;	/* # storage keys supported for data */
+	__u16 instr_keys;	/* # storage keys supported for instructions */
 	struct kvm_ppc_one_seg_page_size sps[KVM_PPC_PAGE_SIZES_MAX_SZ];
 };
 
diff --git a/tools/include/uapi/linux/mman.h b/tools/include/uapi/linux/mman.h
index 81d8edf11789..bfd5938fede6 100644
--- a/tools/include/uapi/linux/mman.h
+++ b/tools/include/uapi/linux/mman.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_MMAN_H
 #define _UAPI_LINUX_MMAN_H
 
-#include <uapi/asm/mman.h>
+#include <asm/mman.h>
+#include <asm-generic/hugetlb_encode.h>
 
 #define MREMAP_MAYMOVE	1
 #define MREMAP_FIXED	2
@@ -10,4 +12,25 @@
 #define OVERCOMMIT_ALWAYS		1
 #define OVERCOMMIT_NEVER		2
 
+/*
+ * Huge page size encoding when MAP_HUGETLB is specified, and a huge page
+ * size other than the default is desired.  See hugetlb_encode.h.
+ * All known huge page size encodings are provided here.  It is the
+ * responsibility of the application to know which sizes are supported on
+ * the running system.  See mmap(2) man page for details.
+ */
+#define MAP_HUGE_SHIFT	HUGETLB_FLAG_ENCODE_SHIFT
+#define MAP_HUGE_MASK	HUGETLB_FLAG_ENCODE_MASK
+
+#define MAP_HUGE_64KB	HUGETLB_FLAG_ENCODE_64KB
+#define MAP_HUGE_512KB	HUGETLB_FLAG_ENCODE_512KB
+#define MAP_HUGE_1MB	HUGETLB_FLAG_ENCODE_1MB
+#define MAP_HUGE_2MB	HUGETLB_FLAG_ENCODE_2MB
+#define MAP_HUGE_8MB	HUGETLB_FLAG_ENCODE_8MB
+#define MAP_HUGE_16MB	HUGETLB_FLAG_ENCODE_16MB
+#define MAP_HUGE_256MB	HUGETLB_FLAG_ENCODE_256MB
+#define MAP_HUGE_1GB	HUGETLB_FLAG_ENCODE_1GB
+#define MAP_HUGE_2GB	HUGETLB_FLAG_ENCODE_2GB
+#define MAP_HUGE_16GB	HUGETLB_FLAG_ENCODE_16GB
+
 #endif /* _UAPI_LINUX_MMAN_H */
diff --git a/tools/include/uapi/linux/perf_event.h b/tools/include/uapi/linux/perf_event.h
index 140ae638cfd6..362493a2f950 100644
--- a/tools/include/uapi/linux/perf_event.h
+++ b/tools/include/uapi/linux/perf_event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 /*
  * Performance events:
  *
diff --git a/tools/include/uapi/linux/prctl.h b/tools/include/uapi/linux/prctl.h
new file mode 100644
index 000000000000..a8d0759a9e40
--- /dev/null
+++ b/tools/include/uapi/linux/prctl.h
@@ -0,0 +1,200 @@
+#ifndef _LINUX_PRCTL_H
+#define _LINUX_PRCTL_H
+
+#include <linux/types.h>
+
+/* Values to pass as first argument to prctl() */
+
+#define PR_SET_PDEATHSIG  1  /* Second arg is a signal */
+#define PR_GET_PDEATHSIG  2  /* Second arg is a ptr to return the signal */
+
+/* Get/set current->mm->dumpable */
+#define PR_GET_DUMPABLE   3
+#define PR_SET_DUMPABLE   4
+
+/* Get/set unaligned access control bits (if meaningful) */
+#define PR_GET_UNALIGN	  5
+#define PR_SET_UNALIGN	  6
+# define PR_UNALIGN_NOPRINT	1	/* silently fix up unaligned user accesses */
+# define PR_UNALIGN_SIGBUS	2	/* generate SIGBUS on unaligned user access */
+
+/* Get/set whether or not to drop capabilities on setuid() away from
+ * uid 0 (as per security/commoncap.c) */
+#define PR_GET_KEEPCAPS   7
+#define PR_SET_KEEPCAPS   8
+
+/* Get/set floating-point emulation control bits (if meaningful) */
+#define PR_GET_FPEMU  9
+#define PR_SET_FPEMU 10
+# define PR_FPEMU_NOPRINT	1	/* silently emulate fp operations accesses */
+# define PR_FPEMU_SIGFPE	2	/* don't emulate fp operations, send SIGFPE instead */
+
+/* Get/set floating-point exception mode (if meaningful) */
+#define PR_GET_FPEXC	11
+#define PR_SET_FPEXC	12
+# define PR_FP_EXC_SW_ENABLE	0x80	/* Use FPEXC for FP exception enables */
+# define PR_FP_EXC_DIV		0x010000	/* floating point divide by zero */
+# define PR_FP_EXC_OVF		0x020000	/* floating point overflow */
+# define PR_FP_EXC_UND		0x040000	/* floating point underflow */
+# define PR_FP_EXC_RES		0x080000	/* floating point inexact result */
+# define PR_FP_EXC_INV		0x100000	/* floating point invalid operation */
+# define PR_FP_EXC_DISABLED	0	/* FP exceptions disabled */
+# define PR_FP_EXC_NONRECOV	1	/* async non-recoverable exc. mode */
+# define PR_FP_EXC_ASYNC	2	/* async recoverable exception mode */
+# define PR_FP_EXC_PRECISE	3	/* precise exception mode */
+
+/* Get/set whether we use statistical process timing or accurate timestamp
+ * based process timing */
+#define PR_GET_TIMING   13
+#define PR_SET_TIMING   14
+# define PR_TIMING_STATISTICAL  0       /* Normal, traditional,
+                                                   statistical process timing */
+# define PR_TIMING_TIMESTAMP    1       /* Accurate timestamp based
+                                                   process timing */
+
+#define PR_SET_NAME    15		/* Set process name */
+#define PR_GET_NAME    16		/* Get process name */
+
+/* Get/set process endian */
+#define PR_GET_ENDIAN	19
+#define PR_SET_ENDIAN	20
+# define PR_ENDIAN_BIG		0
+# define PR_ENDIAN_LITTLE	1	/* True little endian mode */
+# define PR_ENDIAN_PPC_LITTLE	2	/* "PowerPC" pseudo little endian */
+
+/* Get/set process seccomp mode */
+#define PR_GET_SECCOMP	21
+#define PR_SET_SECCOMP	22
+
+/* Get/set the capability bounding set (as per security/commoncap.c) */
+#define PR_CAPBSET_READ 23
+#define PR_CAPBSET_DROP 24
+
+/* Get/set the process' ability to use the timestamp counter instruction */
+#define PR_GET_TSC 25
+#define PR_SET_TSC 26
+# define PR_TSC_ENABLE		1	/* allow the use of the timestamp counter */
+# define PR_TSC_SIGSEGV		2	/* throw a SIGSEGV instead of reading the TSC */
+
+/* Get/set securebits (as per security/commoncap.c) */
+#define PR_GET_SECUREBITS 27
+#define PR_SET_SECUREBITS 28
+
+/*
+ * Get/set the timerslack as used by poll/select/nanosleep
+ * A value of 0 means "use default"
+ */
+#define PR_SET_TIMERSLACK 29
+#define PR_GET_TIMERSLACK 30
+
+#define PR_TASK_PERF_EVENTS_DISABLE		31
+#define PR_TASK_PERF_EVENTS_ENABLE		32
+
+/*
+ * Set early/late kill mode for hwpoison memory corruption.
+ * This influences when the process gets killed on a memory corruption.
+ */
+#define PR_MCE_KILL	33
+# define PR_MCE_KILL_CLEAR   0
+# define PR_MCE_KILL_SET     1
+
+# define PR_MCE_KILL_LATE    0
+# define PR_MCE_KILL_EARLY   1
+# define PR_MCE_KILL_DEFAULT 2
+
+#define PR_MCE_KILL_GET 34
+
+/*
+ * Tune up process memory map specifics.
+ */
+#define PR_SET_MM		35
+# define PR_SET_MM_START_CODE		1
+# define PR_SET_MM_END_CODE		2
+# define PR_SET_MM_START_DATA		3
+# define PR_SET_MM_END_DATA		4
+# define PR_SET_MM_START_STACK		5
+# define PR_SET_MM_START_BRK		6
+# define PR_SET_MM_BRK			7
+# define PR_SET_MM_ARG_START		8
+# define PR_SET_MM_ARG_END		9
+# define PR_SET_MM_ENV_START		10
+# define PR_SET_MM_ENV_END		11
+# define PR_SET_MM_AUXV			12
+# define PR_SET_MM_EXE_FILE		13
+# define PR_SET_MM_MAP			14
+# define PR_SET_MM_MAP_SIZE		15
+
+/*
+ * This structure provides new memory descriptor
+ * map which mostly modifies /proc/pid/stat[m]
+ * output for a task. This mostly done in a
+ * sake of checkpoint/restore functionality.
+ */
+struct prctl_mm_map {
+	__u64	start_code;		/* code section bounds */
+	__u64	end_code;
+	__u64	start_data;		/* data section bounds */
+	__u64	end_data;
+	__u64	start_brk;		/* heap for brk() syscall */
+	__u64	brk;
+	__u64	start_stack;		/* stack starts at */
+	__u64	arg_start;		/* command line arguments bounds */
+	__u64	arg_end;
+	__u64	env_start;		/* environment variables bounds */
+	__u64	env_end;
+	__u64	*auxv;			/* auxiliary vector */
+	__u32	auxv_size;		/* vector size */
+	__u32	exe_fd;			/* /proc/$pid/exe link file */
+};
+
+/*
+ * Set specific pid that is allowed to ptrace the current task.
+ * A value of 0 mean "no process".
+ */
+#define PR_SET_PTRACER 0x59616d61
+# define PR_SET_PTRACER_ANY ((unsigned long)-1)
+
+#define PR_SET_CHILD_SUBREAPER	36
+#define PR_GET_CHILD_SUBREAPER	37
+
+/*
+ * If no_new_privs is set, then operations that grant new privileges (i.e.
+ * execve) will either fail or not grant them.  This affects suid/sgid,
+ * file capabilities, and LSMs.
+ *
+ * Operations that merely manipulate or drop existing privileges (setresuid,
+ * capset, etc.) will still work.  Drop those privileges if you want them gone.
+ *
+ * Changing LSM security domain is considered a new privilege.  So, for example,
+ * asking selinux for a specific new context (e.g. with runcon) will result
+ * in execve returning -EPERM.
+ *
+ * See Documentation/prctl/no_new_privs.txt for more details.
+ */
+#define PR_SET_NO_NEW_PRIVS	38
+#define PR_GET_NO_NEW_PRIVS	39
+
+#define PR_GET_TID_ADDRESS	40
+
+#define PR_SET_THP_DISABLE	41
+#define PR_GET_THP_DISABLE	42
+
+/*
+ * Tell the kernel to start/stop helping userspace manage bounds tables.
+ */
+#define PR_MPX_ENABLE_MANAGEMENT  43
+#define PR_MPX_DISABLE_MANAGEMENT 44
+
+#define PR_SET_FP_MODE		45
+#define PR_GET_FP_MODE		46
+# define PR_FP_MODE_FR		(1 << 0)	/* 64b FP registers */
+# define PR_FP_MODE_FRE		(1 << 1)	/* 32b compatibility */
+
+/* Control the ambient capability set */
+#define PR_CAP_AMBIENT			47
+# define PR_CAP_AMBIENT_IS_SET		1
+# define PR_CAP_AMBIENT_RAISE		2
+# define PR_CAP_AMBIENT_LOWER		3
+# define PR_CAP_AMBIENT_CLEAR_ALL	4
+
+#endif /* _LINUX_PRCTL_H */
diff --git a/tools/include/uapi/linux/sched.h b/tools/include/uapi/linux/sched.h
index e2a6c7b3510b..30a9e51bbb1e 100644
--- a/tools/include/uapi/linux/sched.h
+++ b/tools/include/uapi/linux/sched.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_SCHED_H
 #define _UAPI_LINUX_SCHED_H
 
diff --git a/tools/include/uapi/linux/stat.h b/tools/include/uapi/linux/stat.h
index 17b10304c393..7b35e98d3c58 100644
--- a/tools/include/uapi/linux/stat.h
+++ b/tools/include/uapi/linux/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _UAPI_LINUX_STAT_H
 #define _UAPI_LINUX_STAT_H
 
diff --git a/tools/include/uapi/linux/vhost.h b/tools/include/uapi/linux/vhost.h
index 60180c0b5dc6..c51f8e5cc608 100644
--- a/tools/include/uapi/linux/vhost.h
+++ b/tools/include/uapi/linux/vhost.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 #ifndef _LINUX_VHOST_H
 #define _LINUX_VHOST_H
 /* Userspace interface for in-kernel virtio accelerators. */
diff --git a/tools/include/uapi/sound/asound.h b/tools/include/uapi/sound/asound.h
index 87bf30b182df..c227ccba60ae 100644
--- a/tools/include/uapi/sound/asound.h
+++ b/tools/include/uapi/sound/asound.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
 /*
  *  Advanced Linux Sound Architecture - ALSA - Driver
  *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
diff --git a/tools/kvm/kvm_stat/Makefile b/tools/kvm/kvm_stat/Makefile
index 5b1cba57e3b3..c3e36c60d477 100644
--- a/tools/kvm/kvm_stat/Makefile
+++ b/tools/kvm/kvm_stat/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include ../../scripts/Makefile.include
 include ../../scripts/utilities.mak
 BINDIR=usr/bin
diff --git a/tools/laptop/dslm/Makefile b/tools/laptop/dslm/Makefile
index ff613b31730b..90f512c4e2bb 100644
--- a/tools/laptop/dslm/Makefile
+++ b/tools/laptop/dslm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC := $(CROSS_COMPILE)gcc
 CFLAGS := -I../../usr/include
 
diff --git a/tools/laptop/freefall/Makefile b/tools/laptop/freefall/Makefile
index 48c6c9328419..5f758c489a20 100644
--- a/tools/laptop/freefall/Makefile
+++ b/tools/laptop/freefall/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 PREFIX ?= /usr
 SBINDIR ?= sbin
 INSTALL ?= install
diff --git a/tools/leds/Makefile b/tools/leds/Makefile
index 078b666fd78b..c379af003807 100644
--- a/tools/leds/Makefile
+++ b/tools/leds/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for LEDs tools
 
 CC = $(CROSS_COMPILE)gcc
diff --git a/tools/leds/led_hw_brightness_mon.c b/tools/leds/led_hw_brightness_mon.c
index 64642ccfe442..eb65ae988839 100644
--- a/tools/leds/led_hw_brightness_mon.c
+++ b/tools/leds/led_hw_brightness_mon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * led_hw_brightness_mon.c
  *
diff --git a/tools/leds/uledmon.c b/tools/leds/uledmon.c
index 25cbc7acf50a..c15a39c1f271 100644
--- a/tools/leds/uledmon.c
+++ b/tools/leds/uledmon.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * uledmon.c
  *
diff --git a/tools/lib/api/Makefile b/tools/lib/api/Makefile
index 4563ba7ede6f..a13e9c7f1fc5 100644
--- a/tools/lib/api/Makefile
+++ b/tools/lib/api/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include ../../scripts/Makefile.include
 include ../../scripts/utilities.mak		# QUIET_CLEAN
 
@@ -17,13 +18,19 @@ MAKEFLAGS += --no-print-directory
 LIBFILE = $(OUTPUT)libapi.a
 
 CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS)
-CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fPIC
+CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -fPIC
 
+ifeq ($(DEBUG),0)
 ifeq ($(CC_NO_CLANG), 0)
   CFLAGS += -O3
 else
   CFLAGS += -O6
 endif
+endif
+
+ifeq ($(DEBUG),0)
+  CFLAGS += -D_FORTIFY_SOURCE
+endif
 
 # Treat warnings as errors unless directed not to
 ifneq ($(WERROR),0)
diff --git a/tools/lib/api/cpu.c b/tools/lib/api/cpu.c
index 8c6489356e3a..4af6d4b7aa07 100644
--- a/tools/lib/api/cpu.c
+++ b/tools/lib/api/cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 
 #include "cpu.h"
diff --git a/tools/lib/api/cpu.h b/tools/lib/api/cpu.h
index 81e9d3955961..90a102fb20de 100644
--- a/tools/lib/api/cpu.h
+++ b/tools/lib/api/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __API_CPU__
 #define __API_CPU__
 
diff --git a/tools/lib/api/debug-internal.h b/tools/lib/api/debug-internal.h
index 188f7880eafe..80c783497d25 100644
--- a/tools/lib/api/debug-internal.h
+++ b/tools/lib/api/debug-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __API_DEBUG_INTERNAL_H__
 #define __API_DEBUG_INTERNAL_H__
 
diff --git a/tools/lib/api/debug.c b/tools/lib/api/debug.c
index 5fa5cf500a1f..69b1ba3d1ee3 100644
--- a/tools/lib/api/debug.c
+++ b/tools/lib/api/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdarg.h>
 #include "debug.h"
diff --git a/tools/lib/api/debug.h b/tools/lib/api/debug.h
index a0872f68fc56..3684dd6e0c02 100644
--- a/tools/lib/api/debug.h
+++ b/tools/lib/api/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __API_DEBUG_H__
 #define __API_DEBUG_H__
 
diff --git a/tools/lib/api/fd/array.h b/tools/lib/api/fd/array.h
index 71287dddc05f..b39557d1a88f 100644
--- a/tools/lib/api/fd/array.h
+++ b/tools/lib/api/fd/array.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __API_FD_ARRAY__
 #define __API_FD_ARRAY__
 
diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c
index a7ecf8f469f4..b24afc0e6e81 100644
--- a/tools/lib/api/fs/fs.c
+++ b/tools/lib/api/fs/fs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <ctype.h>
 #include <errno.h>
 #include <limits.h>
diff --git a/tools/lib/api/fs/fs.h b/tools/lib/api/fs/fs.h
index 45605348461e..dda49deefb52 100644
--- a/tools/lib/api/fs/fs.h
+++ b/tools/lib/api/fs/fs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __API_FS__
 #define __API_FS__
 
diff --git a/tools/lib/api/fs/tracing_path.c b/tools/lib/api/fs/tracing_path.c
index 3e606b9c443e..7b7fd0b18551 100644
--- a/tools/lib/api/fs/tracing_path.c
+++ b/tools/lib/api/fs/tracing_path.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef _GNU_SOURCE
 # define _GNU_SOURCE
 #endif
diff --git a/tools/lib/api/fs/tracing_path.h b/tools/lib/api/fs/tracing_path.h
index 3f233ac70b6f..0066f06cc381 100644
--- a/tools/lib/api/fs/tracing_path.h
+++ b/tools/lib/api/fs/tracing_path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __API_FS_TRACING_PATH_H
 #define __API_FS_TRACING_PATH_H
 
diff --git a/tools/lib/bpf/Makefile b/tools/lib/bpf/Makefile
index d2441db34740..4555304dc18e 100644
--- a/tools/lib/bpf/Makefile
+++ b/tools/lib/bpf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Most of this file is copied from tools/lib/traceevent/Makefile
 
 BPF_VERSION = 0
diff --git a/tools/lib/hweight.c b/tools/lib/hweight.c
index 0b859b884339..a16ebf515417 100644
--- a/tools/lib/hweight.c
+++ b/tools/lib/hweight.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bitops.h>
 #include <asm/types.h>
 
diff --git a/tools/lib/lockdep/Makefile b/tools/lib/lockdep/Makefile
index ed9ace59d112..9b0ca3ad1ef3 100644
--- a/tools/lib/lockdep/Makefile
+++ b/tools/lib/lockdep/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # file format version
 FILE_VERSION = 1
 
diff --git a/tools/lib/lockdep/common.c b/tools/lib/lockdep/common.c
index d1c89cc06f5f..5c3b58cce8a9 100644
--- a/tools/lib/lockdep/common.c
+++ b/tools/lib/lockdep/common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stddef.h>
 #include <stdbool.h>
 #include <linux/compiler.h>
diff --git a/tools/lib/lockdep/include/liblockdep/common.h b/tools/lib/lockdep/include/liblockdep/common.h
index 6e66277ec437..8862da80995a 100644
--- a/tools/lib/lockdep/include/liblockdep/common.h
+++ b/tools/lib/lockdep/include/liblockdep/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_COMMON_H
 #define _LIBLOCKDEP_COMMON_H
 
diff --git a/tools/lib/lockdep/include/liblockdep/mutex.h b/tools/lib/lockdep/include/liblockdep/mutex.h
index ee53a42818ca..a80ac39f966e 100644
--- a/tools/lib/lockdep/include/liblockdep/mutex.h
+++ b/tools/lib/lockdep/include/liblockdep/mutex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_MUTEX_H
 #define _LIBLOCKDEP_MUTEX_H
 
diff --git a/tools/lib/lockdep/include/liblockdep/rwlock.h b/tools/lib/lockdep/include/liblockdep/rwlock.h
index 4ec03f861551..a96c3bf0fef1 100644
--- a/tools/lib/lockdep/include/liblockdep/rwlock.h
+++ b/tools/lib/lockdep/include/liblockdep/rwlock.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_RWLOCK_H
 #define _LIBLOCKDEP_RWLOCK_H
 
diff --git a/tools/lib/lockdep/lockdep.c b/tools/lib/lockdep/lockdep.c
index ced6d7443cea..6002fcf2f9bc 100644
--- a/tools/lib/lockdep/lockdep.c
+++ b/tools/lib/lockdep/lockdep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/lockdep.h>
 #include <stdlib.h>
 
diff --git a/tools/lib/lockdep/preload.c b/tools/lib/lockdep/preload.c
index 6a2d3c5d4e92..76245d16196d 100644
--- a/tools/lib/lockdep/preload.c
+++ b/tools/lib/lockdep/preload.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <pthread.h>
 #include <stdio.h>
diff --git a/tools/lib/lockdep/run_tests.sh b/tools/lib/lockdep/run_tests.sh
index f9b94098fc98..2e570a188f16 100755
--- a/tools/lib/lockdep/run_tests.sh
+++ b/tools/lib/lockdep/run_tests.sh
@@ -1,4 +1,5 @@
 #! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 make &> /dev/null
 
diff --git a/tools/lib/lockdep/tests/AA.c b/tools/lib/lockdep/tests/AA.c
index 18211a5f354f..63c7ce97bda3 100644
--- a/tools/lib/lockdep/tests/AA.c
+++ b/tools/lib/lockdep/tests/AA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 
 int main(void)
diff --git a/tools/lib/lockdep/tests/ABA.c b/tools/lib/lockdep/tests/ABA.c
index 0f782ff404ac..efa39b23f05d 100644
--- a/tools/lib/lockdep/tests/ABA.c
+++ b/tools/lib/lockdep/tests/ABA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 
 void main(void)
diff --git a/tools/lib/lockdep/tests/ABBA.c b/tools/lib/lockdep/tests/ABBA.c
index 07f0e29d5485..1460afd33d71 100644
--- a/tools/lib/lockdep/tests/ABBA.c
+++ b/tools/lib/lockdep/tests/ABBA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 #include "common.h"
 
diff --git a/tools/lib/lockdep/tests/ABBA_2threads.c b/tools/lib/lockdep/tests/ABBA_2threads.c
index cd807d736361..39325ef8a2ac 100644
--- a/tools/lib/lockdep/tests/ABBA_2threads.c
+++ b/tools/lib/lockdep/tests/ABBA_2threads.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <pthread.h>
 
diff --git a/tools/lib/lockdep/tests/ABBCCA.c b/tools/lib/lockdep/tests/ABBCCA.c
index 843db09ac666..a54c1b2af118 100644
--- a/tools/lib/lockdep/tests/ABBCCA.c
+++ b/tools/lib/lockdep/tests/ABBCCA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 #include "common.h"
 
diff --git a/tools/lib/lockdep/tests/ABBCCDDA.c b/tools/lib/lockdep/tests/ABBCCDDA.c
index 33620e268f85..aa5d194e8869 100644
--- a/tools/lib/lockdep/tests/ABBCCDDA.c
+++ b/tools/lib/lockdep/tests/ABBCCDDA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 #include "common.h"
 
diff --git a/tools/lib/lockdep/tests/ABCABC.c b/tools/lib/lockdep/tests/ABCABC.c
index 3fee51e3a68a..b54a08e60416 100644
--- a/tools/lib/lockdep/tests/ABCABC.c
+++ b/tools/lib/lockdep/tests/ABCABC.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 #include "common.h"
 
diff --git a/tools/lib/lockdep/tests/ABCDBCDA.c b/tools/lib/lockdep/tests/ABCDBCDA.c
index 427ba562c75b..a56742250d86 100644
--- a/tools/lib/lockdep/tests/ABCDBCDA.c
+++ b/tools/lib/lockdep/tests/ABCDBCDA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 #include "common.h"
 
diff --git a/tools/lib/lockdep/tests/ABCDBDDA.c b/tools/lib/lockdep/tests/ABCDBDDA.c
index 680c6cf3e919..238a3353f3c3 100644
--- a/tools/lib/lockdep/tests/ABCDBDDA.c
+++ b/tools/lib/lockdep/tests/ABCDBDDA.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 #include "common.h"
 
diff --git a/tools/lib/lockdep/tests/WW.c b/tools/lib/lockdep/tests/WW.c
index d44f77d71029..eee88df7fc41 100644
--- a/tools/lib/lockdep/tests/WW.c
+++ b/tools/lib/lockdep/tests/WW.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/rwlock.h>
 
 void main(void)
diff --git a/tools/lib/lockdep/tests/common.h b/tools/lib/lockdep/tests/common.h
index d89e94d47d86..3026c29ccb5c 100644
--- a/tools/lib/lockdep/tests/common.h
+++ b/tools/lib/lockdep/tests/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIBLOCKDEP_TEST_COMMON_H
 #define _LIBLOCKDEP_TEST_COMMON_H
 
diff --git a/tools/lib/lockdep/tests/unlock_balance.c b/tools/lib/lockdep/tests/unlock_balance.c
index 0bc62de686f7..34cf32f689de 100644
--- a/tools/lib/lockdep/tests/unlock_balance.c
+++ b/tools/lib/lockdep/tests/unlock_balance.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <liblockdep/mutex.h>
 
 void main(void)
diff --git a/tools/lib/str_error_r.c b/tools/lib/str_error_r.c
index 503ae072244c..d6d65537b0d9 100644
--- a/tools/lib/str_error_r.c
+++ b/tools/lib/str_error_r.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef _GNU_SOURCE
 #include <string.h>
 #include <stdio.h>
diff --git a/tools/lib/string.c b/tools/lib/string.c
index a4246f14ded1..93b3d4b6feac 100644
--- a/tools/lib/string.c
+++ b/tools/lib/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *  linux/tools/lib/string.c
  *
diff --git a/tools/lib/subcmd/Makefile b/tools/lib/subcmd/Makefile
index 7e9f03c97e4c..95563b8e1ad7 100644
--- a/tools/lib/subcmd/Makefile
+++ b/tools/lib/subcmd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include ../../scripts/Makefile.include
 include ../../scripts/utilities.mak		# QUIET_CLEAN
 
diff --git a/tools/lib/subcmd/exec-cmd.c b/tools/lib/subcmd/exec-cmd.c
index 1ae833af1a4a..33e94fb83986 100644
--- a/tools/lib/subcmd/exec-cmd.c
+++ b/tools/lib/subcmd/exec-cmd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/string.h>
 #include <sys/types.h>
diff --git a/tools/lib/subcmd/exec-cmd.h b/tools/lib/subcmd/exec-cmd.h
index 5d08bda31d90..aba591b8d254 100644
--- a/tools/lib/subcmd/exec-cmd.h
+++ b/tools/lib/subcmd/exec-cmd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_EXEC_CMD_H
 #define __SUBCMD_EXEC_CMD_H
 
diff --git a/tools/lib/subcmd/help.c b/tools/lib/subcmd/help.c
index 0310520f918e..2859f107abc8 100644
--- a/tools/lib/subcmd/help.c
+++ b/tools/lib/subcmd/help.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/lib/subcmd/help.h b/tools/lib/subcmd/help.h
index 9bd4223dc722..355c066c8d49 100644
--- a/tools/lib/subcmd/help.h
+++ b/tools/lib/subcmd/help.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_HELP_H
 #define __SUBCMD_HELP_H
 
diff --git a/tools/lib/subcmd/pager.c b/tools/lib/subcmd/pager.c
index 6518bea926d6..5ba754d17952 100644
--- a/tools/lib/subcmd/pager.c
+++ b/tools/lib/subcmd/pager.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/select.h>
 #include <stdlib.h>
 #include <stdio.h>
diff --git a/tools/lib/subcmd/pager.h b/tools/lib/subcmd/pager.h
index 623f5542d05d..f1a53cf29880 100644
--- a/tools/lib/subcmd/pager.h
+++ b/tools/lib/subcmd/pager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_PAGER_H
 #define __SUBCMD_PAGER_H
 
diff --git a/tools/lib/subcmd/parse-options.c b/tools/lib/subcmd/parse-options.c
index 2bd6fd0c1d40..f6a1babcbac4 100644
--- a/tools/lib/subcmd/parse-options.c
+++ b/tools/lib/subcmd/parse-options.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/string.h>
 #include <linux/types.h>
diff --git a/tools/lib/subcmd/parse-options.h b/tools/lib/subcmd/parse-options.h
index f054ca1b899d..92fdbe1519f6 100644
--- a/tools/lib/subcmd/parse-options.h
+++ b/tools/lib/subcmd/parse-options.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_PARSE_OPTIONS_H
 #define __SUBCMD_PARSE_OPTIONS_H
 
diff --git a/tools/lib/subcmd/run-command.c b/tools/lib/subcmd/run-command.c
index 911f83942723..5cdac2162532 100644
--- a/tools/lib/subcmd/run-command.c
+++ b/tools/lib/subcmd/run-command.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <unistd.h>
 #include <sys/types.h>
 #include <sys/stat.h>
diff --git a/tools/lib/subcmd/run-command.h b/tools/lib/subcmd/run-command.h
index fe2befea1e73..17d969c6add3 100644
--- a/tools/lib/subcmd/run-command.h
+++ b/tools/lib/subcmd/run-command.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_RUN_COMMAND_H
 #define __SUBCMD_RUN_COMMAND_H
 
diff --git a/tools/lib/subcmd/sigchain.c b/tools/lib/subcmd/sigchain.c
index 3537c348a18e..f0fe3dbef7f7 100644
--- a/tools/lib/subcmd/sigchain.c
+++ b/tools/lib/subcmd/sigchain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <signal.h>
 #include "subcmd-util.h"
 #include "sigchain.h"
diff --git a/tools/lib/subcmd/sigchain.h b/tools/lib/subcmd/sigchain.h
index 0c919f2874ca..1ec663af43ea 100644
--- a/tools/lib/subcmd/sigchain.h
+++ b/tools/lib/subcmd/sigchain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_SIGCHAIN_H
 #define __SUBCMD_SIGCHAIN_H
 
diff --git a/tools/lib/subcmd/subcmd-config.c b/tools/lib/subcmd/subcmd-config.c
index d017c728bd1b..84a7cf6c7878 100644
--- a/tools/lib/subcmd/subcmd-config.c
+++ b/tools/lib/subcmd/subcmd-config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "subcmd-config.h"
 
 #define UNDEFINED "SUBCMD_HAS_NOT_BEEN_INITIALIZED"
diff --git a/tools/lib/subcmd/subcmd-config.h b/tools/lib/subcmd/subcmd-config.h
index cc8514030b5c..9024dc17d100 100644
--- a/tools/lib/subcmd/subcmd-config.h
+++ b/tools/lib/subcmd/subcmd-config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_SUBCMD_CONFIG_H
 #define __PERF_SUBCMD_CONFIG_H
 
diff --git a/tools/lib/subcmd/subcmd-util.h b/tools/lib/subcmd/subcmd-util.h
index 8fa5f036eff0..794a375dad36 100644
--- a/tools/lib/subcmd/subcmd-util.h
+++ b/tools/lib/subcmd/subcmd-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __SUBCMD_UTIL_H
 #define __SUBCMD_UTIL_H
 
diff --git a/tools/lib/symbol/kallsyms.c b/tools/lib/symbol/kallsyms.c
index d270ac00613d..914cb8e3d40b 100644
--- a/tools/lib/symbol/kallsyms.c
+++ b/tools/lib/symbol/kallsyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <ctype.h>
 #include "symbol/kallsyms.h"
 #include <stdio.h>
diff --git a/tools/lib/symbol/kallsyms.h b/tools/lib/symbol/kallsyms.h
index 4071316a766e..bc40101d72c1 100644
--- a/tools/lib/symbol/kallsyms.h
+++ b/tools/lib/symbol/kallsyms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TOOLS_KALLSYMS_H_
 #define __TOOLS_KALLSYMS_H_ 1
 
diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 9b8555ea3459..46cd5f871ad7 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # trace-cmd version
 EP_VERSION = 1
 EP_PATCHLEVEL = 1
diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c
index ec57d0c1fbc2..8f8586912da7 100644
--- a/tools/lib/traceevent/plugin_cfg80211.c
+++ b/tools/lib/traceevent/plugin_cfg80211.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <string.h>
 #include <inttypes.h>
diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c
index 3727de48c8d5..5e750af2b461 100644
--- a/tools/lib/traceevent/plugin_scsi.c
+++ b/tools/lib/traceevent/plugin_scsi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <string.h>
 #include <inttypes.h>
diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c
index 3a413eaada68..690173bfa13e 100644
--- a/tools/lib/traceevent/plugin_xen.c
+++ b/tools/lib/traceevent/plugin_xen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/lib/vsprintf.c b/tools/lib/vsprintf.c
index 45f9a06daa56..e08ee147eab4 100644
--- a/tools/lib/vsprintf.c
+++ b/tools/lib/vsprintf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <linux/kernel.h>
 #include <stdio.h>
diff --git a/tools/net/Makefile b/tools/net/Makefile
index ddf888010652..5830670feae1 100644
--- a/tools/net/Makefile
+++ b/tools/net/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 prefix = /usr
 
 CC = gcc
diff --git a/tools/nfsd/inject_fault.sh b/tools/nfsd/inject_fault.sh
index 06a399ac8b2f..10ceee64a09a 100755
--- a/tools/nfsd/inject_fault.sh
+++ b/tools/nfsd/inject_fault.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Copyright (c) 2011 Bryan Schumaker <bjschuma@netapp.com>
 #
diff --git a/tools/objtool/Documentation/stack-validation.txt b/tools/objtool/Documentation/stack-validation.txt
index 6a1af43862df..3995735a878f 100644
--- a/tools/objtool/Documentation/stack-validation.txt
+++ b/tools/objtool/Documentation/stack-validation.txt
@@ -194,10 +194,10 @@ they mean, and suggestions for how to fix them.
    If it's a GCC-compiled .c file, the error may be because the function
    uses an inline asm() statement which has a "call" instruction.  An
    asm() statement with a call instruction must declare the use of the
-   stack pointer in its output operand.  For example, on x86_64:
+   stack pointer in its output operand.  On x86_64, this means adding
+   the ASM_CALL_CONSTRAINT as an output constraint:
 
-     register void *__sp asm("rsp");
-     asm volatile("call func" : "+r" (__sp));
+     asm volatile("call func" : ASM_CALL_CONSTRAINT);
 
    Otherwise the stack frame may not get created before the call.
 
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 6976c73e60c4..424b1965d06f 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 include ../scripts/Makefile.include
 include ../scripts/Makefile.arch
 
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index 0e8c8ec4fd4e..34a579f806e3 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -208,14 +208,14 @@ int arch_decode_instruction(struct elf *elf, struct section *sec,
 		break;
 
 	case 0x89:
-		if (rex == 0x48 && modrm == 0xe5) {
+		if (rex_w && !rex_r && modrm_mod == 3 && modrm_reg == 4) {
 
-			/* mov %rsp, %rbp */
+			/* mov %rsp, reg */
 			*type = INSN_STACK;
 			op->src.type = OP_SRC_REG;
 			op->src.reg = CFI_SP;
 			op->dest.type = OP_DEST_REG;
-			op->dest.reg = CFI_BP;
+			op->dest.reg = op_to_cfi_reg[modrm_rm][rex_b];
 			break;
 		}
 
@@ -284,11 +284,16 @@ int arch_decode_instruction(struct elf *elf, struct section *sec,
 	case 0x8d:
 		if (sib == 0x24 && rex_w && !rex_b && !rex_x) {
 
-			/* lea disp(%rsp), reg */
 			*type = INSN_STACK;
-			op->src.type = OP_SRC_ADD;
+			if (!insn.displacement.value) {
+				/* lea (%rsp), reg */
+				op->src.type = OP_SRC_REG;
+			} else {
+				/* lea disp(%rsp), reg */
+				op->src.type = OP_SRC_ADD;
+				op->src.offset = insn.displacement.value;
+			}
 			op->src.reg = CFI_SP;
-			op->src.offset = insn.displacement.value;
 			op->dest.type = OP_DEST_REG;
 			op->dest.reg = op_to_cfi_reg[modrm_reg][rex_r];
 
diff --git a/tools/objtool/arch/x86/insn/gen-insn-attr-x86.awk b/tools/objtool/arch/x86/insn/gen-insn-attr-x86.awk
index a3d2c62fd805..b02a36b2c14f 100644
--- a/tools/objtool/arch/x86/insn/gen-insn-attr-x86.awk
+++ b/tools/objtool/arch/x86/insn/gen-insn-attr-x86.awk
@@ -1,4 +1,5 @@
 #!/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 # gen-insn-attr-x86.awk: Instruction attribute table generator
 # Written by Masami Hiramatsu <mhiramat@redhat.com>
 #
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index f744617c9946..9b341584eb1b 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -267,12 +267,13 @@ static int decode_instructions(struct objtool_file *file)
 						      &insn->immediate,
 						      &insn->stack_op);
 			if (ret)
-				return ret;
+				goto err;
 
 			if (!insn->type || insn->type > INSN_LAST) {
 				WARN_FUNC("invalid instruction type %d",
 					  insn->sec, insn->offset, insn->type);
-				return -1;
+				ret = -1;
+				goto err;
 			}
 
 			hash_add(file->insn_hash, &insn->hash, insn->offset);
@@ -296,6 +297,10 @@ static int decode_instructions(struct objtool_file *file)
 	}
 
 	return 0;
+
+err:
+	free(insn);
+	return ret;
 }
 
 /*
@@ -1203,24 +1208,39 @@ static int update_insn_state(struct instruction *insn, struct insn_state *state)
 		switch (op->src.type) {
 
 		case OP_SRC_REG:
-			if (op->src.reg == CFI_SP && op->dest.reg == CFI_BP) {
+			if (op->src.reg == CFI_SP && op->dest.reg == CFI_BP &&
+			    cfa->base == CFI_SP &&
+			    regs[CFI_BP].base == CFI_CFA &&
+			    regs[CFI_BP].offset == -cfa->offset) {
+
+				/* mov %rsp, %rbp */
+				cfa->base = op->dest.reg;
+				state->bp_scratch = false;
+			}
 
-				if (cfa->base == CFI_SP &&
-				    regs[CFI_BP].base == CFI_CFA &&
-				    regs[CFI_BP].offset == -cfa->offset) {
+			else if (op->src.reg == CFI_SP &&
+				 op->dest.reg == CFI_BP && state->drap) {
 
-					/* mov %rsp, %rbp */
-					cfa->base = op->dest.reg;
-					state->bp_scratch = false;
-				}
+				/* drap: mov %rsp, %rbp */
+				regs[CFI_BP].base = CFI_BP;
+				regs[CFI_BP].offset = -state->stack_size;
+				state->bp_scratch = false;
+			}
 
-				else if (state->drap) {
+			else if (op->src.reg == CFI_SP && cfa->base == CFI_SP) {
 
-					/* drap: mov %rsp, %rbp */
-					regs[CFI_BP].base = CFI_BP;
-					regs[CFI_BP].offset = -state->stack_size;
-					state->bp_scratch = false;
-				}
+				/*
+				 * mov %rsp, %reg
+				 *
+				 * This is needed for the rare case where GCC
+				 * does:
+				 *
+				 *   mov    %rsp, %rax
+				 *   ...
+				 *   mov    %rax, %rsp
+				 */
+				state->vals[op->dest.reg].base = CFI_CFA;
+				state->vals[op->dest.reg].offset = -state->stack_size;
 			}
 
 			else if (op->dest.reg == cfa->base) {
@@ -1737,11 +1757,14 @@ static int validate_branch(struct objtool_file *file, struct instruction *first,
 		if (insn->dead_end)
 			return 0;
 
-		insn = next_insn;
-		if (!insn) {
+		if (!next_insn) {
+			if (state.cfa.base == CFI_UNDEFINED)
+				return 0;
 			WARN("%s: unexpected end of section", sec->name);
 			return 1;
 		}
+
+		insn = next_insn;
 	}
 
 	return 0;
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index 6e9f980a7d26..24460155c82c 100644
--- a/tools/objtool/elf.c
+++ b/tools/objtool/elf.c
@@ -175,19 +175,20 @@ static int read_sections(struct elf *elf)
 			return -1;
 		}
 
-		sec->data = elf_getdata(s, NULL);
-		if (!sec->data) {
-			WARN_ELF("elf_getdata");
-			return -1;
-		}
-
-		if (sec->data->d_off != 0 ||
-		    sec->data->d_size != sec->sh.sh_size) {
-			WARN("unexpected data attributes for %s", sec->name);
-			return -1;
+		if (sec->sh.sh_size != 0) {
+			sec->data = elf_getdata(s, NULL);
+			if (!sec->data) {
+				WARN_ELF("elf_getdata");
+				return -1;
+			}
+			if (sec->data->d_off != 0 ||
+			    sec->data->d_size != sec->sh.sh_size) {
+				WARN("unexpected data attributes for %s",
+				     sec->name);
+				return -1;
+			}
 		}
-
-		sec->len = sec->data->d_size;
+		sec->len = sec->sh.sh_size;
 	}
 
 	/* sanity check, one more call to elf_nextscn() should return NULL */
@@ -508,6 +509,7 @@ struct section *elf_create_rela_section(struct elf *elf, struct section *base)
 	strcat(relaname, base->name);
 
 	sec = elf_create_section(elf, relaname, sizeof(GElf_Rela), 0);
+	free(relaname);
 	if (!sec)
 		return NULL;
 
@@ -561,6 +563,7 @@ int elf_write(struct elf *elf)
 	struct section *sec;
 	Elf_Scn *s;
 
+	/* Update section headers for changed sections: */
 	list_for_each_entry(sec, &elf->sections, list) {
 		if (sec->changed) {
 			s = elf_getscn(elf->elf, sec->idx);
@@ -568,13 +571,17 @@ int elf_write(struct elf *elf)
 				WARN_ELF("elf_getscn");
 				return -1;
 			}
-			if (!gelf_update_shdr (s, &sec->sh)) {
+			if (!gelf_update_shdr(s, &sec->sh)) {
 				WARN_ELF("gelf_update_shdr");
 				return -1;
 			}
 		}
 	}
 
+	/* Make sure the new section header entries get updated properly. */
+	elf_flagelf(elf->elf, ELF_C_SET, ELF_F_DIRTY);
+
+	/* Write all changes to the file. */
 	if (elf_update(elf->elf, ELF_C_WRITE) < 0) {
 		WARN_ELF("elf_update");
 		return -1;
diff --git a/tools/objtool/objtool.c b/tools/objtool/objtool.c
index 31e0f9143840..07f329919828 100644
--- a/tools/objtool/objtool.c
+++ b/tools/objtool/objtool.c
@@ -70,7 +70,7 @@ static void cmd_usage(void)
 
 	printf("\n");
 
-	exit(1);
+	exit(129);
 }
 
 static void handle_options(int *argc, const char ***argv)
@@ -86,9 +86,7 @@ static void handle_options(int *argc, const char ***argv)
 			break;
 		} else {
 			fprintf(stderr, "Unknown option: %s\n", cmd);
-			fprintf(stderr, "\n Usage: %s\n",
-				objtool_usage_string);
-			exit(1);
+			cmd_usage();
 		}
 
 		(*argv)++;
diff --git a/tools/pci/pcitest.sh b/tools/pci/pcitest.sh
index 5442bbea4c22..77e8c85ef744 100644
--- a/tools/pci/pcitest.sh
+++ b/tools/pci/pcitest.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 echo "BAR tests"
 echo
diff --git a/tools/pcmcia/Makefile b/tools/pcmcia/Makefile
index 81a7498c5cd9..eae24df1dbf5 100644
--- a/tools/pcmcia/Makefile
+++ b/tools/pcmcia/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC := $(CROSS_COMPILE)gcc
 CFLAGS := -I../../usr/include
 
diff --git a/tools/perf/Documentation/perf-list.txt b/tools/perf/Documentation/perf-list.txt
index f709de54707b..e2a897ae3596 100644
--- a/tools/perf/Documentation/perf-list.txt
+++ b/tools/perf/Documentation/perf-list.txt
@@ -8,7 +8,8 @@ perf-list - List all symbolic event types
 SYNOPSIS
 --------
 [verse]
-'perf list' [--no-desc] [--long-desc] [hw|sw|cache|tracepoint|pmu|sdt|event_glob]
+'perf list' [--no-desc] [--long-desc]
+            [hw|sw|cache|tracepoint|pmu|sdt|metric|metricgroup|event_glob]
 
 DESCRIPTION
 -----------
@@ -47,6 +48,8 @@ counted. The following modifiers exist:
  P - use maximum detected precise level
  S - read sample value (PERF_SAMPLE_READ)
  D - pin the event to the PMU
+ W - group is weak and will fallback to non-group if not schedulable,
+     only supported in 'perf stat' for now.
 
 The 'p' modifier can be used for specifying how precise the instruction
 address should be. The 'p' modifier can be specified multiple times:
@@ -201,7 +204,7 @@ For example Intel Core CPUs typically have four generic performance counters
 for the core, plus three fixed counters for instructions, cycles and
 ref-cycles. Some special events have restrictions on which counter they
 can schedule, and may not support multiple instances in a single group.
-When too many events are specified in the group none of them will not
+When too many events are specified in the group some of them will not
 be measured.
 
 Globally pinned events can limit the number of counters available for
@@ -246,6 +249,10 @@ To limit the list use:
 
 . 'sdt' to list all Statically Defined Tracepoint events.
 
+. 'metric' to list metrics
+
+. 'metricgroup' to list metricgroups with metrics.
+
 . If none of the above is matched, it will apply the supplied glob to all
   events, printing the ones that match.
 
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index e397453e5a46..5a626ef666c2 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -8,8 +8,8 @@ perf-record - Run a command and record its profile into perf.data
 SYNOPSIS
 --------
 [verse]
-'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] <command>
-'perf record' [-e <EVENT> | --event=EVENT] [-l] [-a] -- <command> [<options>]
+'perf record' [-e <EVENT> | --event=EVENT] [-a] <command>
+'perf record' [-e <EVENT> | --event=EVENT] [-a] -- <command> [<options>]
 
 DESCRIPTION
 -----------
@@ -377,6 +377,8 @@ symbolic names, e.g. on x86, ax, si. To list the available registers use
 --intr-regs=\?. To name registers, pass a comma separated list such as
 --intr-regs=ax,bx. The list of register is architecture dependent.
 
+--user-regs::
+Capture user registers at sample time. Same arguments as -I.
 
 --running-time::
 Record running and enabled time for read events (:S)
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 383a98d992ed..ddde2b54af57 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -434,7 +434,8 @@ include::itrace.txt[]
 
 --inline::
 	If a callgraph address belongs to an inlined function, the inline stack
-	will be printed. Each entry is function name or file/line.
+	will be printed. Each entry is function name or file/line. Enabled by
+	default, disable with --no-inline.
 
 include::callchain-overhead-calculation.txt[]
 
diff --git a/tools/perf/Documentation/perf-sched.txt b/tools/perf/Documentation/perf-sched.txt
index a092a2499e8f..55b67338548e 100644
--- a/tools/perf/Documentation/perf-sched.txt
+++ b/tools/perf/Documentation/perf-sched.txt
@@ -106,6 +106,14 @@ OPTIONS for 'perf sched timehist'
 --max-stack::
 	Maximum number of functions to display in backtrace, default 5.
 
+-p=::
+--pid=::
+	Only show events for given process ID (comma separated list).
+
+-t=::
+--tid=::
+	Only show events for given thread ID (comma separated list).
+
 -s::
 --summary::
     Show only a summary of scheduling by thread with min, max, and average
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 18dfcfa38454..2811fcf684cb 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -116,8 +116,8 @@ OPTIONS
 --fields::
         Comma separated list of fields to print. Options are:
         comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr, symoff,
-        srcline, period, iregs, brstack, brstacksym, flags, bpf-output, brstackinsn, brstackoff,
-        callindent, insn, insnlen, synth, phys_addr.
+        srcline, period, iregs, uregs, brstack, brstacksym, flags, bpf-output, brstackinsn,
+        brstackoff, callindent, insn, insnlen, synth, phys_addr.
         Field list can be prepended with the type, trace, sw or hw,
         to indicate to which event type the field list applies.
         e.g., -F sw:comm,tid,time,ip,sym  and -F trace:time,cpu,trace
@@ -325,9 +325,14 @@ include::itrace.txt[]
 	Set the maximum number of program blocks to print with brstackasm for
 	each sample.
 
+--per-event-dump::
+	Create per event files with a "perf.data.EVENT.dump" name instead of
+        printing to stdout, useful, for instance, for generating flamegraphs.
+
 --inline::
 	If a callgraph address belongs to an inlined function, the inline stack
-	will be printed. Each entry has function name and file/line.
+	will be printed. Each entry has function name and file/line. Enabled by
+	default, disable with --no-inline.
 
 SEE ALSO
 --------
diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index c37d61682dfb..823fce7674bb 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -199,6 +199,13 @@ Aggregate counts per processor socket for system-wide mode measurements.
 --per-core::
 Aggregate counts per physical processor for system-wide mode measurements.
 
+-M::
+--metrics::
+Print metrics or metricgroups specified in a comma separated list.
+For a group all metrics from the group are added.
+The events from the metrics are automatically measured.
+See perf list output for the possble metrics and metricgroups.
+
 -A::
 --no-aggr::
 Do not aggregate counts across all monitored CPUs.
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index d864ea6fd367..4353262bc462 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -240,6 +240,9 @@ Default is to monitor all CPUS.
 --force::
 	Don't do ownership validation.
 
+--num-thread-synthesize::
+	The number of threads to run when synthesizing events for existing processes.
+	By default, the number of threads equals to the number of online CPUs.
 
 INTERACTIVE PROMPTING KEYS
 --------------------------
diff --git a/tools/perf/MANIFEST b/tools/perf/MANIFEST
index 62072822dc85..627b7cada144 100644
--- a/tools/perf/MANIFEST
+++ b/tools/perf/MANIFEST
@@ -1,34 +1,8 @@
 tools/perf
-tools/arch/alpha/include/asm/barrier.h
-tools/arch/arm/include/asm/barrier.h
-tools/arch/arm64/include/asm/barrier.h
-tools/arch/ia64/include/asm/barrier.h
-tools/arch/mips/include/asm/barrier.h
-tools/arch/powerpc/include/asm/barrier.h
-tools/arch/s390/include/asm/barrier.h
-tools/arch/sh/include/asm/barrier.h
-tools/arch/sparc/include/asm/barrier.h
-tools/arch/sparc/include/asm/barrier_32.h
-tools/arch/sparc/include/asm/barrier_64.h
-tools/arch/tile/include/asm/barrier.h
-tools/arch/x86/include/asm/barrier.h
-tools/arch/x86/include/asm/cmpxchg.h
-tools/arch/x86/include/asm/cpufeatures.h
-tools/arch/x86/include/asm/disabled-features.h
-tools/arch/x86/include/asm/required-features.h
-tools/arch/x86/include/uapi/asm/svm.h
-tools/arch/x86/include/uapi/asm/vmx.h
-tools/arch/x86/include/uapi/asm/kvm.h
-tools/arch/x86/include/uapi/asm/kvm_perf.h
-tools/arch/x86/lib/memcpy_64.S
-tools/arch/x86/lib/memset_64.S
-tools/arch/s390/include/uapi/asm/kvm_perf.h
-tools/arch/s390/include/uapi/asm/sie.h
-tools/arch/xtensa/include/asm/barrier.h
+tools/arch
 tools/scripts
 tools/build
-tools/arch/x86/include/asm/atomic.h
-tools/arch/x86/include/asm/rmwcc.h
+tools/include
 tools/lib/traceevent
 tools/lib/api
 tools/lib/bpf
@@ -42,60 +16,3 @@ tools/lib/find_bit.c
 tools/lib/bitmap.c
 tools/lib/str_error_r.c
 tools/lib/vsprintf.c
-tools/include/asm/alternative-asm.h
-tools/include/asm/atomic.h
-tools/include/asm/barrier.h
-tools/include/asm/bug.h
-tools/include/asm-generic/atomic-gcc.h
-tools/include/asm-generic/barrier.h
-tools/include/asm-generic/bitops/arch_hweight.h
-tools/include/asm-generic/bitops/atomic.h
-tools/include/asm-generic/bitops/const_hweight.h
-tools/include/asm-generic/bitops/__ffs.h
-tools/include/asm-generic/bitops/__ffz.h
-tools/include/asm-generic/bitops/__fls.h
-tools/include/asm-generic/bitops/find.h
-tools/include/asm-generic/bitops/fls64.h
-tools/include/asm-generic/bitops/fls.h
-tools/include/asm-generic/bitops/hweight.h
-tools/include/asm-generic/bitops.h
-tools/include/linux/atomic.h
-tools/include/linux/bitops.h
-tools/include/linux/compiler.h
-tools/include/linux/compiler-gcc.h
-tools/include/linux/coresight-pmu.h
-tools/include/linux/bug.h
-tools/include/linux/filter.h
-tools/include/linux/hash.h
-tools/include/linux/kernel.h
-tools/include/linux/list.h
-tools/include/linux/log2.h
-tools/include/uapi/asm-generic/fcntl.h
-tools/include/uapi/asm-generic/ioctls.h
-tools/include/uapi/asm-generic/mman-common.h
-tools/include/uapi/asm-generic/mman.h
-tools/include/uapi/drm/drm.h
-tools/include/uapi/drm/i915_drm.h
-tools/include/uapi/linux/bpf.h
-tools/include/uapi/linux/bpf_common.h
-tools/include/uapi/linux/fcntl.h
-tools/include/uapi/linux/hw_breakpoint.h
-tools/include/uapi/linux/kvm.h
-tools/include/uapi/linux/mman.h
-tools/include/uapi/linux/perf_event.h
-tools/include/uapi/linux/sched.h
-tools/include/uapi/linux/stat.h
-tools/include/uapi/linux/vhost.h
-tools/include/uapi/sound/asound.h
-tools/include/linux/poison.h
-tools/include/linux/rbtree.h
-tools/include/linux/rbtree_augmented.h
-tools/include/linux/refcount.h
-tools/include/linux/string.h
-tools/include/linux/stringify.h
-tools/include/linux/types.h
-tools/include/linux/err.h
-tools/include/linux/bitmap.h
-tools/include/linux/time64.h
-tools/arch/*/include/uapi/asm/mman.h
-tools/arch/*/include/uapi/asm/perf_regs.h
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 32a64e619028..225454416ed5 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # This is a simple wrapper Makefile that calls the main Makefile.perf
 # with a -j option to do parallel builds
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 91ef44bfaf3e..68cf1360a3f3 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -173,7 +173,7 @@ AWK     = awk
 # non-config cases
 config := 1
 
-NON_CONFIG_TARGETS := clean TAGS tags cscope help install-doc install-man install-html install-info install-pdf doc man html info pdf
+NON_CONFIG_TARGETS := clean python-clean TAGS tags cscope help install-doc install-man install-html install-info install-pdf doc man html info pdf
 
 ifdef MAKECMDGOALS
 ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
@@ -420,6 +420,13 @@ sndrv_pcm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/sndrv_pcm_ioctl.sh
 $(sndrv_pcm_ioctl_array): $(sndrv_pcm_hdr_dir)/asound.h $(sndrv_pcm_ioctl_tbl)
 	$(Q)$(SHELL) '$(sndrv_pcm_ioctl_tbl)' $(sndrv_pcm_hdr_dir) > $@
 
+kcmp_type_array := $(beauty_outdir)/kcmp_type_array.c
+kcmp_hdr_dir := $(srctree)/tools/include/uapi/linux/
+kcmp_type_tbl := $(srctree)/tools/perf/trace/beauty/kcmp_type.sh
+
+$(kcmp_type_array): $(kcmp_hdr_dir)/kcmp.h $(kcmp_type_tbl)
+	$(Q)$(SHELL) '$(kcmp_type_tbl)' $(kcmp_hdr_dir) > $@
+
 kvm_ioctl_array := $(beauty_ioctl_outdir)/kvm_ioctl_array.c
 kvm_hdr_dir := $(srctree)/tools/include/uapi/linux
 kvm_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/kvm_ioctl.sh
@@ -441,6 +448,20 @@ perf_ioctl_tbl := $(srctree)/tools/perf/trace/beauty/perf_ioctl.sh
 $(perf_ioctl_array): $(perf_hdr_dir)/perf_event.h $(perf_ioctl_tbl)
 	$(Q)$(SHELL) '$(perf_ioctl_tbl)' $(perf_hdr_dir) > $@
 
+madvise_behavior_array := $(beauty_outdir)/madvise_behavior_array.c
+madvise_hdr_dir := $(srctree)/tools/include/uapi/asm-generic/
+madvise_behavior_tbl := $(srctree)/tools/perf/trace/beauty/madvise_behavior.sh
+
+$(madvise_behavior_array): $(madvise_hdr_dir)/mman-common.h $(madvise_behavior_tbl)
+	$(Q)$(SHELL) '$(madvise_behavior_tbl)' $(madvise_hdr_dir) > $@
+
+prctl_option_array := $(beauty_outdir)/prctl_option_array.c
+prctl_hdr_dir := $(srctree)/tools/include/uapi/linux/
+prctl_option_tbl := $(srctree)/tools/perf/trace/beauty/prctl_option.sh
+
+$(prctl_option_array): $(prctl_hdr_dir)/prctl.h $(prctl_option_tbl)
+	$(Q)$(SHELL) '$(prctl_option_tbl)' $(prctl_hdr_dir) > $@
+
 all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
 
 $(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS) $(LIBTRACEEVENT_DYNAMIC_LIST)
@@ -539,9 +560,12 @@ prepare: $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h archheaders $(drm_ioc
 	$(pkey_alloc_access_rights_array) \
 	$(sndrv_pcm_ioctl_array) \
 	$(sndrv_ctl_ioctl_array) \
+	$(kcmp_type_array) \
 	$(kvm_ioctl_array) \
 	$(vhost_virtio_ioctl_array) \
-	$(perf_ioctl_array)
+	$(madvise_behavior_array) \
+	$(perf_ioctl_array) \
+	$(prctl_option_array)
 
 $(OUTPUT)%.o: %.c prepare FORCE
 	$(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(build-dir) $@
@@ -802,7 +826,10 @@ config-clean:
 	$(call QUIET_CLEAN, config)
 	$(Q)$(MAKE) -C $(srctree)/tools/build/feature/ $(if $(OUTPUT),OUTPUT=$(OUTPUT)feature/,) clean >/dev/null
 
-clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean config-clean fixdep-clean
+python-clean:
+	$(python-clean)
+
+clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clean config-clean fixdep-clean python-clean
 	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf-with-kcore $(LANG_BINDINGS)
 	$(Q)find $(if $(OUTPUT),$(OUTPUT),.) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
 	$(Q)$(RM) $(OUTPUT).config-detected
@@ -811,15 +838,17 @@ clean:: $(LIBTRACEEVENT)-clean $(LIBAPI)-clean $(LIBBPF)-clean $(LIBSUBCMD)-clea
 		$(OUTPUT)util/intel-pt-decoder/inat-tables.c \
 		$(OUTPUT)tests/llvm-src-{base,kbuild,prologue,relocation}.c \
 		$(OUTPUT)pmu-events/pmu-events.c \
+		$(OUTPUT)$(madvise_behavior_array) \
 		$(OUTPUT)$(drm_ioctl_array) \
 		$(OUTPUT)$(pkey_alloc_access_rights_array) \
 		$(OUTPUT)$(sndrv_ctl_ioctl_array) \
 		$(OUTPUT)$(sndrv_pcm_ioctl_array) \
 		$(OUTPUT)$(kvm_ioctl_array) \
+		$(OUTPUT)$(kcmp_type_array) \
 		$(OUTPUT)$(vhost_virtio_ioctl_array) \
-		$(OUTPUT)$(perf_ioctl_array)
+		$(OUTPUT)$(perf_ioctl_array) \
+		$(OUTPUT)$(prctl_option_array)
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
-	$(python-clean)
 
 #
 # To provide FEATURE-DUMP into $(FEATURE_DUMP_COPY)
diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c
index 1ce0872b1726..f64516d5b23e 100644
--- a/tools/perf/arch/arm/annotate/instructions.c
+++ b/tools/perf/arch/arm/annotate/instructions.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
 #include <sys/types.h>
 #include <regex.h>
 
@@ -23,7 +25,7 @@ static struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const c
 	return ops;
 }
 
-static int arm__annotate_init(struct arch *arch)
+static int arm__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
 {
 	struct arm_annotate *arm;
 	int err;
diff --git a/tools/perf/arch/arm/include/dwarf-regs-table.h b/tools/perf/arch/arm/include/dwarf-regs-table.h
index f298d034c37b..5a45046fab72 100644
--- a/tools/perf/arch/arm/include/dwarf-regs-table.h
+++ b/tools/perf/arch/arm/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/arm/include/perf_regs.h b/tools/perf/arch/arm/include/perf_regs.h
index f619c9c5a4bf..ed20e0253e25 100644
--- a/tools/perf/arch/arm/include/perf_regs.h
+++ b/tools/perf/arch/arm/include/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_REGS_H
 #define ARCH_PERF_REGS_H
 
diff --git a/tools/perf/arch/arm/tests/dwarf-unwind.c b/tools/perf/arch/arm/tests/dwarf-unwind.c
index 62eff847f91c..8cb347760233 100644
--- a/tools/perf/arch/arm/tests/dwarf-unwind.c
+++ b/tools/perf/arch/arm/tests/dwarf-unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "perf_regs.h"
 #include "thread.h"
diff --git a/tools/perf/arch/arm/tests/regs_load.S b/tools/perf/arch/arm/tests/regs_load.S
index e09e983946fe..6e2495cc4517 100644
--- a/tools/perf/arch/arm/tests/regs_load.S
+++ b/tools/perf/arch/arm/tests/regs_load.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 #define R0 0x00
diff --git a/tools/perf/arch/arm/util/unwind-libdw.c b/tools/perf/arch/arm/util/unwind-libdw.c
index bacfa00fca39..36ba4c69c3c5 100644
--- a/tools/perf/arch/arm/util/unwind-libdw.c
+++ b/tools/perf/arch/arm/util/unwind-libdw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <elfutils/libdwfl.h>
 #include "../../util/unwind-libdw.h"
 #include "../../util/perf_regs.h"
diff --git a/tools/perf/arch/arm/util/unwind-libunwind.c b/tools/perf/arch/arm/util/unwind-libunwind.c
index 62c397ed3d97..3a550225dfaf 100644
--- a/tools/perf/arch/arm/util/unwind-libunwind.c
+++ b/tools/perf/arch/arm/util/unwind-libunwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <errno.h>
 #include <libunwind.h>
diff --git a/tools/perf/arch/arm64/Makefile b/tools/perf/arch/arm64/Makefile
index eebe1ec9d2ee..91de4860faad 100644
--- a/tools/perf/arch/arm64/Makefile
+++ b/tools/perf/arch/arm64/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
 endif
diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c
index 8f1908756cb6..6688977e4ac7 100644
--- a/tools/perf/arch/arm64/annotate/instructions.c
+++ b/tools/perf/arch/arm64/annotate/instructions.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
 #include <sys/types.h>
 #include <regex.h>
 
@@ -25,7 +27,7 @@ static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const
 	return ops;
 }
 
-static int arm64__annotate_init(struct arch *arch)
+static int arm64__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
 {
 	struct arm64_annotate *arm;
 	int err;
diff --git a/tools/perf/arch/arm64/include/dwarf-regs-table.h b/tools/perf/arch/arm64/include/dwarf-regs-table.h
index 36e375f5a211..177b2855f797 100644
--- a/tools/perf/arch/arm64/include/dwarf-regs-table.h
+++ b/tools/perf/arch/arm64/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/arm64/include/perf_regs.h b/tools/perf/arch/arm64/include/perf_regs.h
index 4e5af27e3fbf..baaa5e64a3fb 100644
--- a/tools/perf/arch/arm64/include/perf_regs.h
+++ b/tools/perf/arch/arm64/include/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_REGS_H
 #define ARCH_PERF_REGS_H
 
diff --git a/tools/perf/arch/arm64/tests/dwarf-unwind.c b/tools/perf/arch/arm64/tests/dwarf-unwind.c
index cf04a4c91c59..e907f0f4c20c 100644
--- a/tools/perf/arch/arm64/tests/dwarf-unwind.c
+++ b/tools/perf/arch/arm64/tests/dwarf-unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "perf_regs.h"
 #include "thread.h"
diff --git a/tools/perf/arch/arm64/tests/regs_load.S b/tools/perf/arch/arm64/tests/regs_load.S
index 025b46e579a6..07042511dca9 100644
--- a/tools/perf/arch/arm64/tests/regs_load.S
+++ b/tools/perf/arch/arm64/tests/regs_load.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 .text
diff --git a/tools/perf/arch/arm64/util/unwind-libunwind.c b/tools/perf/arch/arm64/util/unwind-libunwind.c
index b415dfdbccca..002520d4036b 100644
--- a/tools/perf/arch/arm64/util/unwind-libunwind.c
+++ b/tools/perf/arch/arm64/util/unwind-libunwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 
 #ifndef REMOTE_UNWIND_LIBUNWIND
diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c
index 6b40e9f01740..8c0cfeb55f8e 100644
--- a/tools/perf/arch/common.c
+++ b/tools/perf/arch/common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <sys/utsname.h>
 #include "common.h"
diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h
index 6b01c736b7d9..a1546509ad24 100644
--- a/tools/perf/arch/common.h
+++ b/tools/perf/arch/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_COMMON_H
 #define ARCH_PERF_COMMON_H
 
diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile
index cc3930904d68..42dab7c8f508 100644
--- a/tools/perf/arch/powerpc/Makefile
+++ b/tools/perf/arch/powerpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
 endif
diff --git a/tools/perf/arch/powerpc/annotate/instructions.c b/tools/perf/arch/powerpc/annotate/instructions.c
index 3c4004db81b9..a3f423c27cae 100644
--- a/tools/perf/arch/powerpc/annotate/instructions.c
+++ b/tools/perf/arch/powerpc/annotate/instructions.c
@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+
 static struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, const char *name)
 {
 	int i;
@@ -46,7 +49,7 @@ static struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, con
 	return ops;
 }
 
-static int powerpc__annotate_init(struct arch *arch)
+static int powerpc__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
 {
 	if (!arch->initialized) {
 		arch->initialized = true;
diff --git a/tools/perf/arch/powerpc/include/arch-tests.h b/tools/perf/arch/powerpc/include/arch-tests.h
index 84d8dedef2ed..1c7be75cbc78 100644
--- a/tools/perf/arch/powerpc/include/arch-tests.h
+++ b/tools/perf/arch/powerpc/include/arch-tests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_TESTS_H
 #define ARCH_TESTS_H
 
diff --git a/tools/perf/arch/powerpc/include/dwarf-regs-table.h b/tools/perf/arch/powerpc/include/dwarf-regs-table.h
index db4730f5585c..66dc015a733d 100644
--- a/tools/perf/arch/powerpc/include/dwarf-regs-table.h
+++ b/tools/perf/arch/powerpc/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/powerpc/include/perf_regs.h b/tools/perf/arch/powerpc/include/perf_regs.h
index c12f4e804f66..00e37b106913 100644
--- a/tools/perf/arch/powerpc/include/perf_regs.h
+++ b/tools/perf/arch/powerpc/include/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_REGS_H
 #define ARCH_PERF_REGS_H
 
diff --git a/tools/perf/arch/powerpc/tests/arch-tests.c b/tools/perf/arch/powerpc/tests/arch-tests.c
index e24f46241f40..8c3fbd4af817 100644
--- a/tools/perf/arch/powerpc/tests/arch-tests.c
+++ b/tools/perf/arch/powerpc/tests/arch-tests.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "tests/tests.h"
 #include "arch-tests.h"
diff --git a/tools/perf/arch/powerpc/tests/dwarf-unwind.c b/tools/perf/arch/powerpc/tests/dwarf-unwind.c
index 0bac3137ccbd..30cbbd6d5be0 100644
--- a/tools/perf/arch/powerpc/tests/dwarf-unwind.c
+++ b/tools/perf/arch/powerpc/tests/dwarf-unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "perf_regs.h"
 #include "thread.h"
diff --git a/tools/perf/arch/powerpc/tests/regs_load.S b/tools/perf/arch/powerpc/tests/regs_load.S
index d76c9a32f327..36a20b0033f9 100644
--- a/tools/perf/arch/powerpc/tests/regs_load.S
+++ b/tools/perf/arch/powerpc/tests/regs_load.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 /* Offset is based on macros from arch/powerpc/include/uapi/asm/ptrace.h. */
diff --git a/tools/perf/arch/powerpc/util/book3s_hcalls.h b/tools/perf/arch/powerpc/util/book3s_hcalls.h
index 0dd6b7f2d44f..54cfa0530e86 100644
--- a/tools/perf/arch/powerpc/util/book3s_hcalls.h
+++ b/tools/perf/arch/powerpc/util/book3s_hcalls.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_BOOK3S_HV_HCALLS_H
 #define ARCH_PERF_BOOK3S_HV_HCALLS_H
 
diff --git a/tools/perf/arch/powerpc/util/book3s_hv_exits.h b/tools/perf/arch/powerpc/util/book3s_hv_exits.h
index e68ba2da8970..853b95d1e139 100644
--- a/tools/perf/arch/powerpc/util/book3s_hv_exits.h
+++ b/tools/perf/arch/powerpc/util/book3s_hv_exits.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_BOOK3S_HV_EXITS_H
 #define ARCH_PERF_BOOK3S_HV_EXITS_H
 
diff --git a/tools/perf/arch/powerpc/util/header.c b/tools/perf/arch/powerpc/util/header.c
index 9aaa6f5a9347..7a4cf80c207a 100644
--- a/tools/perf/arch/powerpc/util/header.c
+++ b/tools/perf/arch/powerpc/util/header.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <unistd.h>
 #include <stdio.h>
diff --git a/tools/perf/arch/powerpc/util/kvm-stat.c b/tools/perf/arch/powerpc/util/kvm-stat.c
index 249723f0e6a9..596ad6aedaac 100644
--- a/tools/perf/arch/powerpc/util/kvm-stat.c
+++ b/tools/perf/arch/powerpc/util/kvm-stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include "util/kvm-stat.h"
 #include "util/parse-events.h"
diff --git a/tools/perf/arch/powerpc/util/perf_regs.c b/tools/perf/arch/powerpc/util/perf_regs.c
index f860dc411f69..ec50939b0418 100644
--- a/tools/perf/arch/powerpc/util/perf_regs.c
+++ b/tools/perf/arch/powerpc/util/perf_regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <string.h>
 #include <regex.h>
diff --git a/tools/perf/arch/powerpc/util/unwind-libdw.c b/tools/perf/arch/powerpc/util/unwind-libdw.c
index 3a24b3c43273..7a1f05ef2fc0 100644
--- a/tools/perf/arch/powerpc/util/unwind-libdw.c
+++ b/tools/perf/arch/powerpc/util/unwind-libdw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <elfutils/libdwfl.h>
 #include "../../util/unwind-libdw.h"
 #include "../../util/perf_regs.h"
diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c
index 745b4b1b8b21..e0e466c650df 100644
--- a/tools/perf/arch/s390/annotate/instructions.c
+++ b/tools/perf/arch/s390/annotate/instructions.c
@@ -1,3 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/compiler.h>
+
 static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name)
 {
 	struct ins_ops *ops = NULL;
@@ -19,7 +22,7 @@ static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *na
 	return ops;
 }
 
-static int s390__annotate_init(struct arch *arch)
+static int s390__annotate_init(struct arch *arch, char *cpuid __maybe_unused)
 {
 	if (!arch->initialized) {
 		arch->initialized = true;
diff --git a/tools/perf/arch/s390/include/dwarf-regs-table.h b/tools/perf/arch/s390/include/dwarf-regs-table.h
index 9da74a933bd6..792d4c277225 100644
--- a/tools/perf/arch/s390/include/dwarf-regs-table.h
+++ b/tools/perf/arch/s390/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/s390/util/Build b/tools/perf/arch/s390/util/Build
index bd518b623d7a..5bd7b9260cc0 100644
--- a/tools/perf/arch/s390/util/Build
+++ b/tools/perf/arch/s390/util/Build
@@ -1,5 +1,4 @@
 libperf-y += header.o
-libperf-y += sym-handling.o
 libperf-y += kvm-stat.o
 
 libperf-$(CONFIG_DWARF) += dwarf-regs.o
diff --git a/tools/perf/arch/s390/util/dwarf-regs.c b/tools/perf/arch/s390/util/dwarf-regs.c
index 0469df02ee62..0dff5b2ed1e5 100644
--- a/tools/perf/arch/s390/util/dwarf-regs.c
+++ b/tools/perf/arch/s390/util/dwarf-regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Mapping of DWARF debug register numbers into register names.
  *
diff --git a/tools/perf/arch/s390/util/machine.c b/tools/perf/arch/s390/util/machine.c
index b9a95a1a8e69..0b2054007314 100644
--- a/tools/perf/arch/s390/util/machine.c
+++ b/tools/perf/arch/s390/util/machine.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <unistd.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/tools/perf/arch/s390/util/sym-handling.c b/tools/perf/arch/s390/util/sym-handling.c
deleted file mode 100644
index e103f6e46afe..000000000000
--- a/tools/perf/arch/s390/util/sym-handling.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Architecture specific ELF symbol handling and relocation mapping.
- *
- * Copyright 2017 IBM Corp.
- * Author(s): Thomas Richter <tmricht@linux.vnet.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License (version 2 only)
- * as published by the Free Software Foundation.
- */
-
-#include "symbol.h"
-
-#ifdef HAVE_LIBELF_SUPPORT
-bool elf__needs_adjust_symbols(GElf_Ehdr ehdr)
-{
-	if (ehdr.e_type == ET_EXEC)
-		return false;
-	return ehdr.e_type == ET_REL || ehdr.e_type == ET_DYN;
-}
-
-void arch__adjust_sym_map_offset(GElf_Sym *sym,
-				 GElf_Shdr *shdr __maybe_unused,
-				 struct map *map)
-{
-	if (map->type == MAP__FUNCTION)
-		sym->st_value += map->start;
-}
-#endif
diff --git a/tools/perf/arch/sh/include/dwarf-regs-table.h b/tools/perf/arch/sh/include/dwarf-regs-table.h
index 3a2deaf3dab4..900e69619970 100644
--- a/tools/perf/arch/sh/include/dwarf-regs-table.h
+++ b/tools/perf/arch/sh/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/sparc/include/dwarf-regs-table.h b/tools/perf/arch/sparc/include/dwarf-regs-table.h
index 12c07619002c..35ede84a6b0d 100644
--- a/tools/perf/arch/sparc/include/dwarf-regs-table.h
+++ b/tools/perf/arch/sparc/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/x86/Makefile b/tools/perf/arch/x86/Makefile
index 9a628a24c5c9..d74eaa7aa927 100644
--- a/tools/perf/arch/x86/Makefile
+++ b/tools/perf/arch/x86/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
 endif
diff --git a/tools/perf/arch/x86/annotate/instructions.c b/tools/perf/arch/x86/annotate/instructions.c
index d84b72063a30..5bd1ba8c0282 100644
--- a/tools/perf/arch/x86/annotate/instructions.c
+++ b/tools/perf/arch/x86/annotate/instructions.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 static struct ins x86__instructions[] = {
 	{ .name = "add",	.ops = &mov_ops,  },
 	{ .name = "addl",	.ops = &mov_ops,  },
@@ -122,3 +123,17 @@ static int x86__cpuid_parse(struct arch *arch, char *cpuid)
 
 	return -1;
 }
+
+static int x86__annotate_init(struct arch *arch, char *cpuid)
+{
+	int err = 0;
+
+	if (arch->initialized)
+		return 0;
+
+	if (cpuid)
+		err = x86__cpuid_parse(arch, cpuid);
+
+	arch->initialized = true;
+	return err;
+}
diff --git a/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh b/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
index 49a18b9ad9cf..029a72c20b19 100755
--- a/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
+++ b/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 in="$1"
 arch="$2"
diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h
index 4e0b806a7a0f..c1bd979b957b 100644
--- a/tools/perf/arch/x86/include/arch-tests.h
+++ b/tools/perf/arch/x86/include/arch-tests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_TESTS_H
 #define ARCH_TESTS_H
 
@@ -8,7 +9,6 @@ struct test;
 int test__rdpmc(struct test *test __maybe_unused, int subtest);
 int test__perf_time_to_tsc(struct test *test __maybe_unused, int subtest);
 int test__insn_x86(struct test *test __maybe_unused, int subtest);
-int test__intel_cqm_count_nmi_context(struct test *test __maybe_unused, int subtest);
 
 #ifdef HAVE_DWARF_UNWIND_SUPPORT
 struct thread;
diff --git a/tools/perf/arch/x86/include/dwarf-regs-table.h b/tools/perf/arch/x86/include/dwarf-regs-table.h
index 9b5e5cbb4209..b9bd5dc9d4c0 100644
--- a/tools/perf/arch/x86/include/dwarf-regs-table.h
+++ b/tools/perf/arch/x86/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/arch/x86/include/perf_regs.h b/tools/perf/arch/x86/include/perf_regs.h
index 7df517acfef8..7f6d538f8a89 100644
--- a/tools/perf/arch/x86/include/perf_regs.h
+++ b/tools/perf/arch/x86/include/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ARCH_PERF_REGS_H
 #define ARCH_PERF_REGS_H
 
diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build
index cbb7e978166b..8e2c5a38c3b9 100644
--- a/tools/perf/arch/x86/tests/Build
+++ b/tools/perf/arch/x86/tests/Build
@@ -5,4 +5,3 @@ libperf-y += arch-tests.o
 libperf-y += rdpmc.o
 libperf-y += perf-time-to-tsc.o
 libperf-$(CONFIG_AUXTRACE) += insn-x86.o
-libperf-y += intel-cqm.o
diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c
index 99d66191e56c..cc1802ff5410 100644
--- a/tools/perf/arch/x86/tests/arch-tests.c
+++ b/tools/perf/arch/x86/tests/arch-tests.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "tests/tests.h"
 #include "arch-tests.h"
@@ -24,10 +25,6 @@ struct test arch_tests[] = {
 	},
 #endif
 	{
-		.desc = "Intel cqm nmi context read",
-		.func = test__intel_cqm_count_nmi_context,
-	},
-	{
 		.func = NULL,
 	},
 
diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c
index 7f209ce827bf..95036c7a59e8 100644
--- a/tools/perf/arch/x86/tests/dwarf-unwind.c
+++ b/tools/perf/arch/x86/tests/dwarf-unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "perf_regs.h"
 #include "thread.h"
diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-32.c b/tools/perf/arch/x86/tests/insn-x86-dat-32.c
index 3cbf6fad169f..fab3c6de73fa 100644
--- a/tools/perf/arch/x86/tests/insn-x86-dat-32.c
+++ b/tools/perf/arch/x86/tests/insn-x86-dat-32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk
  * from insn-x86-dat-src.c for inclusion by insn-x86.c
diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-64.c b/tools/perf/arch/x86/tests/insn-x86-dat-64.c
index aa512fa944dd..c57f34603b9b 100644
--- a/tools/perf/arch/x86/tests/insn-x86-dat-64.c
+++ b/tools/perf/arch/x86/tests/insn-x86-dat-64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Generated by gen-insn-x86-dat.sh and gen-insn-x86-dat.awk
  * from insn-x86-dat-src.c for inclusion by insn-x86.c
diff --git a/tools/perf/arch/x86/tests/insn-x86-dat-src.c b/tools/perf/arch/x86/tests/insn-x86-dat-src.c
index 6cdb65d25b79..891415b10984 100644
--- a/tools/perf/arch/x86/tests/insn-x86-dat-src.c
+++ b/tools/perf/arch/x86/tests/insn-x86-dat-src.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains instructions for testing by the test titled:
  *
diff --git a/tools/perf/arch/x86/tests/insn-x86.c b/tools/perf/arch/x86/tests/insn-x86.c
index b3860586a0c2..a5d24ae5810d 100644
--- a/tools/perf/arch/x86/tests/insn-x86.c
+++ b/tools/perf/arch/x86/tests/insn-x86.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 
 #include "debug.h"
diff --git a/tools/perf/arch/x86/tests/intel-cqm.c b/tools/perf/arch/x86/tests/intel-cqm.c
index 57f86b6e7d6f..90a4a8c58a62 100644
--- a/tools/perf/arch/x86/tests/intel-cqm.c
+++ b/tools/perf/arch/x86/tests/intel-cqm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tests/tests.h"
 #include "perf.h"
 #include "cloexec.h"
diff --git a/tools/perf/arch/x86/tests/perf-time-to-tsc.c b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
index 5dd7efb192ce..b59678e8c1e2 100644
--- a/tools/perf/arch/x86/tests/perf-time-to-tsc.c
+++ b/tools/perf/arch/x86/tests/perf-time-to-tsc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <stdio.h>
diff --git a/tools/perf/arch/x86/tests/rdpmc.c b/tools/perf/arch/x86/tests/rdpmc.c
index 17fec30a0b31..7a11f02d6c6c 100644
--- a/tools/perf/arch/x86/tests/rdpmc.c
+++ b/tools/perf/arch/x86/tests/rdpmc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <unistd.h>
 #include <stdlib.h>
diff --git a/tools/perf/arch/x86/tests/regs_load.S b/tools/perf/arch/x86/tests/regs_load.S
index 60875d5c556c..bbe5a0d16e51 100644
--- a/tools/perf/arch/x86/tests/regs_load.S
+++ b/tools/perf/arch/x86/tests/regs_load.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/linkage.h>
 
 #define AX	 0
diff --git a/tools/perf/arch/x86/util/group.c b/tools/perf/arch/x86/util/group.c
index 37f92aa39a5d..e2f8034b8973 100644
--- a/tools/perf/arch/x86/util/group.c
+++ b/tools/perf/arch/x86/util/group.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include "api/fs/fs.h"
 #include "util/group.h"
diff --git a/tools/perf/arch/x86/util/header.c b/tools/perf/arch/x86/util/header.c
index a74a48db26f5..33027c5e6f92 100644
--- a/tools/perf/arch/x86/util/header.c
+++ b/tools/perf/arch/x86/util/header.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <unistd.h>
 #include <stdio.h>
diff --git a/tools/perf/arch/x86/util/kvm-stat.c b/tools/perf/arch/x86/util/kvm-stat.c
index bf817beca0a8..b32409a0e546 100644
--- a/tools/perf/arch/x86/util/kvm-stat.c
+++ b/tools/perf/arch/x86/util/kvm-stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include "../../util/kvm-stat.h"
 #include <asm/svm.h>
diff --git a/tools/perf/arch/x86/util/perf_regs.c b/tools/perf/arch/x86/util/perf_regs.c
index f95edebfb716..4b2caf6d48e7 100644
--- a/tools/perf/arch/x86/util/perf_regs.c
+++ b/tools/perf/arch/x86/util/perf_regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <string.h>
 #include <regex.h>
diff --git a/tools/perf/arch/x86/util/pmu.c b/tools/perf/arch/x86/util/pmu.c
index 79fe07158d00..63a74c32ddc5 100644
--- a/tools/perf/arch/x86/util/pmu.c
+++ b/tools/perf/arch/x86/util/pmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 
 #include <linux/perf_event.h>
diff --git a/tools/perf/arch/x86/util/tsc.c b/tools/perf/arch/x86/util/tsc.c
index 2e5567c94e09..06bae7023a51 100644
--- a/tools/perf/arch/x86/util/tsc.c
+++ b/tools/perf/arch/x86/util/tsc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdbool.h>
 #include <errno.h>
 
diff --git a/tools/perf/arch/x86/util/unwind-libdw.c b/tools/perf/arch/x86/util/unwind-libdw.c
index 38dc9bb2a7c9..fda8f4206ee4 100644
--- a/tools/perf/arch/x86/util/unwind-libdw.c
+++ b/tools/perf/arch/x86/util/unwind-libdw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <elfutils/libdwfl.h>
 #include "../../util/unwind-libdw.h"
 #include "../../util/perf_regs.h"
diff --git a/tools/perf/arch/x86/util/unwind-libunwind.c b/tools/perf/arch/x86/util/unwind-libunwind.c
index 4f16661cbdbb..9c917f80c906 100644
--- a/tools/perf/arch/x86/util/unwind-libunwind.c
+++ b/tools/perf/arch/x86/util/unwind-libunwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #ifndef REMOTE_UNWIND_LIBUNWIND
 #include <errno.h>
diff --git a/tools/perf/arch/xtensa/include/dwarf-regs-table.h b/tools/perf/arch/xtensa/include/dwarf-regs-table.h
index aa0444a33fe6..d7c9f1fb4444 100644
--- a/tools/perf/arch/xtensa/include/dwarf-regs-table.h
+++ b/tools/perf/arch/xtensa/include/dwarf-regs-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef DEFINE_DWARF_REGSTR_TABLE
 /* This is included in perf/util/dwarf-regs.c */
 
diff --git a/tools/perf/bench/bench.h b/tools/perf/bench/bench.h
index 842ab2781cdc..6c9fcd757f31 100644
--- a/tools/perf/bench/bench.h
+++ b/tools/perf/bench/bench.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BENCH_H
 #define BENCH_H
 
diff --git a/tools/perf/bench/futex-hash.c b/tools/perf/bench/futex-hash.c
index fe16b310097f..58ae6ed8f38b 100644
--- a/tools/perf/bench/futex-hash.c
+++ b/tools/perf/bench/futex-hash.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013  Davidlohr Bueso <davidlohr@hp.com>
  *
diff --git a/tools/perf/bench/futex-lock-pi.c b/tools/perf/bench/futex-lock-pi.c
index 73a1c44ea63c..08653ae8a8c4 100644
--- a/tools/perf/bench/futex-lock-pi.c
+++ b/tools/perf/bench/futex-lock-pi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2015 Davidlohr Bueso.
  */
diff --git a/tools/perf/bench/futex-requeue.c b/tools/perf/bench/futex-requeue.c
index 41786cbea24c..1058c194608a 100644
--- a/tools/perf/bench/futex-requeue.c
+++ b/tools/perf/bench/futex-requeue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013  Davidlohr Bueso <davidlohr@hp.com>
  *
diff --git a/tools/perf/bench/futex-wake-parallel.c b/tools/perf/bench/futex-wake-parallel.c
index 4ab12c8e016a..b4732dad9f89 100644
--- a/tools/perf/bench/futex-wake-parallel.c
+++ b/tools/perf/bench/futex-wake-parallel.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2015 Davidlohr Bueso.
  *
diff --git a/tools/perf/bench/futex-wake.c b/tools/perf/bench/futex-wake.c
index 2fa49222ef8d..8c5c0b6b5c97 100644
--- a/tools/perf/bench/futex-wake.c
+++ b/tools/perf/bench/futex-wake.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2013  Davidlohr Bueso <davidlohr@hp.com>
  *
diff --git a/tools/perf/bench/futex.h b/tools/perf/bench/futex.h
index e44fd3239530..db4853f209c7 100644
--- a/tools/perf/bench/futex.h
+++ b/tools/perf/bench/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Glibc independent futex library for testing kernel functionality.
  * Shamelessly stolen from Darren Hart <dvhltc@us.ibm.com>
diff --git a/tools/perf/bench/mem-functions.c b/tools/perf/bench/mem-functions.c
index fbd732b54047..0251dd348124 100644
--- a/tools/perf/bench/mem-functions.c
+++ b/tools/perf/bench/mem-functions.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * mem-memcpy.c
  *
diff --git a/tools/perf/bench/mem-memcpy-arch.h b/tools/perf/bench/mem-memcpy-arch.h
index 5aad2a9408b0..5bcaec5601a8 100644
--- a/tools/perf/bench/mem-memcpy-arch.h
+++ b/tools/perf/bench/mem-memcpy-arch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifdef HAVE_ARCH_X86_64_SUPPORT
 
diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm-def.h b/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
index 8c0c1a2770c8..50ae8bd58296 100644
--- a/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
+++ b/tools/perf/bench/mem-memcpy-x86-64-asm-def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 MEMCPY_FN(memcpy_orig,
 	"x86-64-unrolled",
diff --git a/tools/perf/bench/mem-memcpy-x86-64-asm.S b/tools/perf/bench/mem-memcpy-x86-64-asm.S
index f700369bb0f6..b43f8d2a34ec 100644
--- a/tools/perf/bench/mem-memcpy-x86-64-asm.S
+++ b/tools/perf/bench/mem-memcpy-x86-64-asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 /* Various wrappers to make the kernel .S file build in user-space: */
 
diff --git a/tools/perf/bench/mem-memset-arch.h b/tools/perf/bench/mem-memset-arch.h
index 0d15786d9ae3..53f45482663f 100644
--- a/tools/perf/bench/mem-memset-arch.h
+++ b/tools/perf/bench/mem-memset-arch.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifdef HAVE_ARCH_X86_64_SUPPORT
 
diff --git a/tools/perf/bench/mem-memset-x86-64-asm-def.h b/tools/perf/bench/mem-memset-x86-64-asm-def.h
index f02d028771d9..dac6d2b7c39b 100644
--- a/tools/perf/bench/mem-memset-x86-64-asm-def.h
+++ b/tools/perf/bench/mem-memset-x86-64-asm-def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 MEMSET_FN(memset_orig,
 	"x86-64-unrolled",
diff --git a/tools/perf/bench/mem-memset-x86-64-asm.S b/tools/perf/bench/mem-memset-x86-64-asm.S
index 58407aa24c1b..d550bd526162 100644
--- a/tools/perf/bench/mem-memset-x86-64-asm.S
+++ b/tools/perf/bench/mem-memset-x86-64-asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define memset MEMSET /* don't hide glibc's memset() */
 #define altinstr_replacement text
 #define globl p2align 4; .globl
diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 469d65b21122..d95fdcc26f4b 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * numa.c
  *
diff --git a/tools/perf/bench/sched-messaging.c b/tools/perf/bench/sched-messaging.c
index 4f961e74535b..f9d7641ae833 100644
--- a/tools/perf/bench/sched-messaging.c
+++ b/tools/perf/bench/sched-messaging.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  * sched-messaging.c
diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index a152737370c5..0591be008f2a 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  * sched-pipe.c
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index c38373195c4a..f15731a3d438 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-annotate.c
  *
@@ -356,7 +357,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
 	}
 
 	if (total_nr_samples == 0) {
-		ui__error("The %s file has no samples!\n", session->file->path);
+		ui__error("The %s file has no samples!\n", session->data->file.path);
 		goto out;
 	}
 
@@ -400,7 +401,7 @@ int cmd_annotate(int argc, const char **argv)
 			.ordering_requires_timestamps = true,
 		},
 	};
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode  = PERF_DATA_MODE_READ,
 	};
 	struct option options[] = {
@@ -410,7 +411,7 @@ int cmd_annotate(int argc, const char **argv)
 		   "only consider symbols in these dsos"),
 	OPT_STRING('s', "symbol", &annotate.sym_hist_filter, "symbol",
 		    "symbol to annotate"),
-	OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
+	OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"),
 	OPT_INCR('v', "verbose", &verbose,
 		    "be more verbose (show symbol address, etc)"),
 	OPT_BOOLEAN('q', "quiet", &quiet, "do now show any message"),
@@ -482,9 +483,9 @@ int cmd_annotate(int argc, const char **argv)
 	if (quiet)
 		perf_quiet_option();
 
-	file.path  = input_name;
+	data.file.path = input_name;
 
-	annotate.session = perf_session__new(&file, false, &annotate.tool);
+	annotate.session = perf_session__new(&data, false, &annotate.tool);
 	if (annotate.session == NULL)
 		return -1;
 
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index 445e62881254..17a6bcd01aa6 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-bench.c
  *
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index e3eb6240ced0..3d354ba6e9c5 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-buildid-cache.c
  *
@@ -311,7 +312,7 @@ int cmd_buildid_cache(int argc, const char **argv)
 		   *kcore_filename = NULL;
 	char sbuf[STRERR_BUFSIZE];
 
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode  = PERF_DATA_MODE_READ,
 	};
 	struct perf_session *session = NULL;
@@ -352,10 +353,10 @@ int cmd_buildid_cache(int argc, const char **argv)
 		nsi = nsinfo__new(ns_id);
 
 	if (missing_filename) {
-		file.path = missing_filename;
-		file.force = force;
+		data.file.path = missing_filename;
+		data.force     = force;
 
-		session = perf_session__new(&file, false, NULL);
+		session = perf_session__new(&data, false, NULL);
 		if (session == NULL)
 			return -1;
 	}
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index fdaca16e0c74..78abbe8d9d5f 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-buildid-list.c
  *
@@ -50,10 +51,12 @@ static bool dso__skip_buildid(struct dso *dso, int with_hits)
 static int perf_session__list_build_ids(bool force, bool with_hits)
 {
 	struct perf_session *session;
-	struct perf_data_file file = {
-		.path  = input_name,
-		.mode  = PERF_DATA_MODE_READ,
-		.force = force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = force,
 	};
 
 	symbol__elf_init();
@@ -63,7 +66,7 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
 	if (filename__fprintf_build_id(input_name, stdout) > 0)
 		goto out;
 
-	session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
+	session = perf_session__new(&data, false, &build_id__mark_dso_hit_ops);
 	if (session == NULL)
 		return -1;
 
@@ -71,7 +74,7 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
 	 * We take all buildids when the file contains AUX area tracing data
 	 * because we do not decode the trace because it would take too long.
 	 */
-	if (!perf_data_file__is_pipe(&file) &&
+	if (!perf_data__is_pipe(&data) &&
 	    perf_header__has_feat(&session->header, HEADER_AUXTRACE))
 		with_hits = false;
 
@@ -79,7 +82,7 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
 	 * in pipe-mode, the only way to get the buildids is to parse
 	 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
 	 */
-	if (with_hits || perf_data_file__is_pipe(&file))
+	if (with_hits || perf_data__is_pipe(&data))
 		perf_session__process_events(session);
 
 	perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
diff --git a/tools/perf/builtin-c2c.c b/tools/perf/builtin-c2c.c
index 475999e48f66..17855c4626a0 100644
--- a/tools/perf/builtin-c2c.c
+++ b/tools/perf/builtin-c2c.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This is rewrite of original c2c tool introduced in here:
  *   http://lwn.net/Articles/588866/
@@ -2523,7 +2524,7 @@ static int perf_c2c__report(int argc, const char **argv)
 {
 	struct perf_session *session;
 	struct ui_progress prog;
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode = PERF_DATA_MODE_READ,
 	};
 	char callchain_default_opt[] = CALLCHAIN_DEFAULT_OPT;
@@ -2572,8 +2573,8 @@ static int perf_c2c__report(int argc, const char **argv)
 	if (!input_name || !strlen(input_name))
 		input_name = "perf.data";
 
-	file.path  = input_name;
-	file.force = symbol_conf.force;
+	data.file.path = input_name;
+	data.force     = symbol_conf.force;
 
 	err = setup_display(display);
 	if (err)
@@ -2591,7 +2592,7 @@ static int perf_c2c__report(int argc, const char **argv)
 		goto out;
 	}
 
-	session = perf_session__new(&file, 0, &c2c.tool);
+	session = perf_session__new(&data, 0, &c2c.tool);
 	if (session == NULL) {
 		pr_debug("No memory for session\n");
 		goto out;
@@ -2611,7 +2612,7 @@ static int perf_c2c__report(int argc, const char **argv)
 		goto out_session;
 
 	/* No pipe support at the moment. */
-	if (perf_data_file__is_pipe(session->file)) {
+	if (perf_data__is_pipe(session->data)) {
 		pr_debug("No pipe support at the moment.\n");
 		goto out_session;
 	}
@@ -2732,6 +2733,7 @@ static int perf_c2c__record(int argc, const char **argv)
 		if (!perf_mem_events[j].supported) {
 			pr_err("failed: event '%s' not supported\n",
 			       perf_mem_events[j].name);
+			free(rec_argv);
 			return -1;
 		}
 
diff --git a/tools/perf/builtin-config.c b/tools/perf/builtin-config.c
index 3ddcc6e2abeb..514f70f95b57 100644
--- a/tools/perf/builtin-config.c
+++ b/tools/perf/builtin-config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-config.c
  *
@@ -34,8 +35,7 @@ static struct option config_options[] = {
 	OPT_END()
 };
 
-static int set_config(struct perf_config_set *set, const char *file_name,
-		      const char *var, const char *value)
+static int set_config(struct perf_config_set *set, const char *file_name)
 {
 	struct perf_config_section *section = NULL;
 	struct perf_config_item *item = NULL;
@@ -49,7 +49,6 @@ static int set_config(struct perf_config_set *set, const char *file_name,
 	if (!fp)
 		return -1;
 
-	perf_config_set__collect(set, file_name, var, value);
 	fprintf(fp, "%s\n", first_line);
 
 	/* overwrite configvariables */
@@ -59,7 +58,7 @@ static int set_config(struct perf_config_set *set, const char *file_name,
 		fprintf(fp, "[%s]\n", section->name);
 
 		perf_config_items__for_each_entry(&section->items, item) {
-			if (!use_system_config && section->from_system_config)
+			if (!use_system_config && item->from_system_config)
 				continue;
 			if (item->value)
 				fprintf(fp, "\t%s = %s\n",
@@ -161,6 +160,7 @@ int cmd_config(int argc, const char **argv)
 	struct perf_config_set *set;
 	char *user_config = mkpath("%s/.perfconfig", getenv("HOME"));
 	const char *config_filename;
+	bool changed = false;
 
 	argc = parse_options(argc, argv, config_options, config_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
@@ -231,15 +231,26 @@ int cmd_config(int argc, const char **argv)
 					goto out_err;
 				}
 			} else {
-				if (set_config(set, config_filename, var, value) < 0) {
-					pr_err("Failed to set '%s=%s' on %s\n",
-					       var, value, config_filename);
+				if (perf_config_set__collect(set, config_filename,
+							     var, value) < 0) {
+					pr_err("Failed to add '%s=%s'\n",
+					       var, value);
 					free(arg);
 					goto out_err;
 				}
+				changed = true;
 			}
 			free(arg);
 		}
+
+		if (!changed)
+			break;
+
+		if (set_config(set, config_filename) < 0) {
+			pr_err("Failed to set the configs on %s\n",
+			       config_filename);
+			goto out_err;
+		}
 	}
 
 	ret = 0;
diff --git a/tools/perf/builtin-data.c b/tools/perf/builtin-data.c
index 46cd8490baf4..dde25d4ca56d 100644
--- a/tools/perf/builtin-data.c
+++ b/tools/perf/builtin-data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include "builtin.h"
 #include "perf.h"
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 0cd4cf6a344b..d660cb7b222b 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-diff.c
  *
@@ -47,7 +48,7 @@ struct diff_hpp_fmt {
 
 struct data__file {
 	struct perf_session	*session;
-	struct perf_data_file	file;
+	struct perf_data	 data;
 	int			 idx;
 	struct hists		*hists;
 	struct diff_hpp_fmt	 fmt[PERF_HPP_DIFF__MAX_INDEX];
@@ -707,7 +708,7 @@ static void data__fprintf(void)
 
 	data__for_each_file(i, d)
 		fprintf(stdout, "#  [%d] %s %s\n",
-			d->idx, d->file.path,
+			d->idx, d->data.file.path,
 			!d->idx ? "(Baseline)" : "");
 
 	fprintf(stdout, "#\n");
@@ -776,16 +777,16 @@ static int __cmd_diff(void)
 	int ret = -EINVAL, i;
 
 	data__for_each_file(i, d) {
-		d->session = perf_session__new(&d->file, false, &tool);
+		d->session = perf_session__new(&d->data, false, &tool);
 		if (!d->session) {
-			pr_err("Failed to open %s\n", d->file.path);
+			pr_err("Failed to open %s\n", d->data.file.path);
 			ret = -1;
 			goto out_delete;
 		}
 
 		ret = perf_session__process_events(d->session);
 		if (ret) {
-			pr_err("Failed to process %s\n", d->file.path);
+			pr_err("Failed to process %s\n", d->data.file.path);
 			goto out_delete;
 		}
 
@@ -1286,11 +1287,11 @@ static int data_init(int argc, const char **argv)
 		return -ENOMEM;
 
 	data__for_each_file(i, d) {
-		struct perf_data_file *file = &d->file;
+		struct perf_data *data = &d->data;
 
-		file->path  = use_default ? defaults[i] : argv[i];
-		file->mode  = PERF_DATA_MODE_READ,
-		file->force = force,
+		data->file.path = use_default ? defaults[i] : argv[i];
+		data->mode      = PERF_DATA_MODE_READ,
+		data->force     = force,
 
 		d->idx  = i;
 	}
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index 6d210e40d611..e06e822ce634 100644
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Builtin evlist command: Show the list of event selectors present
  * in a perf.data file.
@@ -21,14 +22,16 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
 {
 	struct perf_session *session;
 	struct perf_evsel *pos;
-	struct perf_data_file file = {
-		.path = file_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = details->force,
+	struct perf_data data = {
+		.file      = {
+			.path = file_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = details->force,
 	};
 	bool has_tracepoint = false;
 
-	session = perf_session__new(&file, 0, NULL);
+	session = perf_session__new(&data, 0, NULL);
 	if (session == NULL)
 		return -1;
 
diff --git a/tools/perf/builtin-help.c b/tools/perf/builtin-help.c
index dbe4e4153bcf..bd1fedef3d1c 100644
--- a/tools/perf/builtin-help.c
+++ b/tools/perf/builtin-help.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-help.c
  *
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 2b8032908fb2..16a28547ca86 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-inject.c
  *
@@ -35,7 +36,7 @@ struct perf_inject {
 	bool			strip;
 	bool			jit_mode;
 	const char		*input_name;
-	struct perf_data_file	output;
+	struct perf_data	output;
 	u64			bytes_written;
 	u64			aux_id;
 	struct list_head	samples;
@@ -52,7 +53,7 @@ static int output_bytes(struct perf_inject *inject, void *buf, size_t sz)
 {
 	ssize_t size;
 
-	size = perf_data_file__write(&inject->output, buf, sz);
+	size = perf_data__write(&inject->output, buf, sz);
 	if (size < 0)
 		return -errno;
 
@@ -145,7 +146,7 @@ static s64 perf_event__repipe_auxtrace(struct perf_tool *tool,
 	if (!inject->output.is_pipe) {
 		off_t offset;
 
-		offset = lseek(inject->output.fd, 0, SEEK_CUR);
+		offset = lseek(inject->output.file.fd, 0, SEEK_CUR);
 		if (offset == -1)
 			return -errno;
 		ret = auxtrace_index__auxtrace_event(&session->auxtrace_index,
@@ -154,11 +155,11 @@ static s64 perf_event__repipe_auxtrace(struct perf_tool *tool,
 			return ret;
 	}
 
-	if (perf_data_file__is_pipe(session->file) || !session->one_mmap) {
+	if (perf_data__is_pipe(session->data) || !session->one_mmap) {
 		ret = output_bytes(inject, event, event->header.size);
 		if (ret < 0)
 			return ret;
-		ret = copy_bytes(inject, perf_data_file__fd(session->file),
+		ret = copy_bytes(inject, perf_data__fd(session->data),
 				 event->auxtrace.size);
 	} else {
 		ret = output_bytes(inject, event,
@@ -637,8 +638,8 @@ static int __cmd_inject(struct perf_inject *inject)
 {
 	int ret = -EINVAL;
 	struct perf_session *session = inject->session;
-	struct perf_data_file *file_out = &inject->output;
-	int fd = perf_data_file__fd(file_out);
+	struct perf_data *data_out = &inject->output;
+	int fd = perf_data__fd(data_out);
 	u64 output_data_offset;
 
 	signal(SIGINT, sig_handler);
@@ -693,14 +694,14 @@ static int __cmd_inject(struct perf_inject *inject)
 	if (!inject->itrace_synth_opts.set)
 		auxtrace_index__free(&session->auxtrace_index);
 
-	if (!file_out->is_pipe)
+	if (!data_out->is_pipe)
 		lseek(fd, output_data_offset, SEEK_SET);
 
 	ret = perf_session__process_events(session);
 	if (ret)
 		return ret;
 
-	if (!file_out->is_pipe) {
+	if (!data_out->is_pipe) {
 		if (inject->build_ids)
 			perf_header__set_feat(&session->header,
 					      HEADER_BUILD_ID);
@@ -775,11 +776,13 @@ int cmd_inject(int argc, const char **argv)
 		.input_name  = "-",
 		.samples = LIST_HEAD_INIT(inject.samples),
 		.output = {
-			.path = "-",
-			.mode = PERF_DATA_MODE_WRITE,
+			.file      = {
+				.path = "-",
+			},
+			.mode      = PERF_DATA_MODE_WRITE,
 		},
 	};
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode = PERF_DATA_MODE_READ,
 	};
 	int ret;
@@ -789,7 +792,7 @@ int cmd_inject(int argc, const char **argv)
 			    "Inject build-ids into the output stream"),
 		OPT_STRING('i', "input", &inject.input_name, "file",
 			   "input file name"),
-		OPT_STRING('o', "output", &inject.output.path, "file",
+		OPT_STRING('o', "output", &inject.output.file.path, "file",
 			   "output file name"),
 		OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
 			    "Merge sched-stat and sched-switch for getting events "
@@ -801,7 +804,7 @@ int cmd_inject(int argc, const char **argv)
 			 "be more verbose (show build ids, etc)"),
 		OPT_STRING(0, "kallsyms", &symbol_conf.kallsyms_name, "file",
 			   "kallsyms pathname"),
-		OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
+		OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"),
 		OPT_CALLBACK_OPTARG(0, "itrace", &inject.itrace_synth_opts,
 				    NULL, "opts", "Instruction Tracing options",
 				    itrace_parse_synth_opts),
@@ -829,15 +832,15 @@ int cmd_inject(int argc, const char **argv)
 		return -1;
 	}
 
-	if (perf_data_file__open(&inject.output)) {
+	if (perf_data__open(&inject.output)) {
 		perror("failed to create output file");
 		return -1;
 	}
 
 	inject.tool.ordered_events = inject.sched_stat;
 
-	file.path = inject.input_name;
-	inject.session = perf_session__new(&file, true, &inject.tool);
+	data.file.path = inject.input_name;
+	inject.session = perf_session__new(&data, true, &inject.tool);
 	if (inject.session == NULL)
 		return -1;
 
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index a1497c516d85..557d391f564a 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "builtin.h"
 #include "perf.h"
 
@@ -627,7 +628,6 @@ static const struct {
 	{ "GFP_HIGHUSER_MOVABLE",	"HUM" },
 	{ "GFP_HIGHUSER",		"HU" },
 	{ "GFP_USER",			"U" },
-	{ "GFP_TEMPORARY",		"TMP" },
 	{ "GFP_KERNEL_ACCOUNT",		"KAC" },
 	{ "GFP_KERNEL",			"K" },
 	{ "GFP_NOFS",			"NF" },
@@ -1894,7 +1894,7 @@ int cmd_kmem(int argc, const char **argv)
 {
 	const char * const default_slab_sort = "frag,hit,bytes";
 	const char * const default_page_sort = "bytes,hit";
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode = PERF_DATA_MODE_READ,
 	};
 	const struct option kmem_options[] = {
@@ -1910,7 +1910,7 @@ int cmd_kmem(int argc, const char **argv)
 		     "page, order, migtype, gfp", parse_sort_opt),
 	OPT_CALLBACK('l', "line", NULL, "num", "show n lines", parse_line_opt),
 	OPT_BOOLEAN(0, "raw-ip", &raw_ip, "show raw ip instead of symbol"),
-	OPT_BOOLEAN('f', "force", &file.force, "don't complain, do it"),
+	OPT_BOOLEAN('f', "force", &data.force, "don't complain, do it"),
 	OPT_CALLBACK_NOOPT(0, "slab", NULL, NULL, "Analyze slab allocator",
 			   parse_slab_opt),
 	OPT_CALLBACK_NOOPT(0, "page", NULL, NULL, "Analyze page allocator",
@@ -1950,9 +1950,9 @@ int cmd_kmem(int argc, const char **argv)
 		return __cmd_record(argc, argv);
 	}
 
-	file.path = input_name;
+	data.file.path = input_name;
 
-	kmem_session = session = perf_session__new(&file, false, &perf_kmem);
+	kmem_session = session = perf_session__new(&data, false, &perf_kmem);
 	if (session == NULL)
 		return -1;
 
@@ -1984,7 +1984,8 @@ int cmd_kmem(int argc, const char **argv)
 
 	if (perf_time__parse_str(&ptime, time_str) != 0) {
 		pr_err("Invalid time string\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out_delete;
 	}
 
 	if (!strcmp(argv[0], "stat")) {
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index f309c3773522..0c36f2ac6a0e 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "builtin.h"
 #include "perf.h"
 
@@ -34,7 +35,6 @@
 #include <termios.h>
 #include <semaphore.h>
 #include <signal.h>
-#include <pthread.h>
 #include <math.h>
 
 static const char *get_filename_for_perf_kvm(void)
@@ -1068,10 +1068,12 @@ static int read_events(struct perf_kvm_stat *kvm)
 		.namespaces		= perf_event__process_namespaces,
 		.ordered_events		= true,
 	};
-	struct perf_data_file file = {
-		.path = kvm->file_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = kvm->force,
+	struct perf_data file = {
+		.file      = {
+			.path = kvm->file_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = kvm->force,
 	};
 
 	kvm->tool = eops;
@@ -1359,7 +1361,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 		"perf kvm stat live [<options>]",
 		NULL
 	};
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode = PERF_DATA_MODE_WRITE,
 	};
 
@@ -1433,7 +1435,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	/*
 	 * perf session
 	 */
-	kvm->session = perf_session__new(&file, false, &kvm->tool);
+	kvm->session = perf_session__new(&data, false, &kvm->tool);
 	if (kvm->session == NULL) {
 		err = -1;
 		goto out;
@@ -1442,7 +1444,8 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	perf_session__set_id_hdr_size(kvm->session);
 	ordered_events__set_copy_on_queue(&kvm->session->ordered_events, true);
 	machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target,
-				    kvm->evlist->threads, false, kvm->opts.proc_map_timeout);
+				    kvm->evlist->threads, false,
+				    kvm->opts.proc_map_timeout, 1);
 	err = kvm_live_open_events(kvm);
 	if (err)
 		goto out;
diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 4bf2cb4d25aa..ead221e49f00 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-list.c
  *
@@ -15,6 +16,7 @@
 #include "util/cache.h"
 #include "util/pmu.h"
 #include "util/debug.h"
+#include "util/metricgroup.h"
 #include <subcmd/parse-options.h>
 
 static bool desc_flag = true;
@@ -79,6 +81,10 @@ int cmd_list(int argc, const char **argv)
 						long_desc_flag, details_flag);
 		else if (strcmp(argv[i], "sdt") == 0)
 			print_sdt_events(NULL, NULL, raw_dump);
+		else if (strcmp(argv[i], "metric") == 0)
+			metricgroup__print(true, false, NULL, raw_dump);
+		else if (strcmp(argv[i], "metricgroup") == 0)
+			metricgroup__print(false, true, NULL, raw_dump);
 		else if ((sep = strchr(argv[i], ':')) != NULL) {
 			int sep_idx;
 
@@ -96,6 +102,7 @@ int cmd_list(int argc, const char **argv)
 			s[sep_idx] = '\0';
 			print_tracepoint_events(s, s + sep_idx + 1, raw_dump);
 			print_sdt_events(s, s + sep_idx + 1, raw_dump);
+			metricgroup__print(true, true, s, raw_dump);
 			free(s);
 		} else {
 			if (asprintf(&s, "*%s*", argv[i]) < 0) {
@@ -112,6 +119,7 @@ int cmd_list(int argc, const char **argv)
 						details_flag);
 			print_tracepoint_events(NULL, s, raw_dump);
 			print_sdt_events(NULL, s, raw_dump);
+			metricgroup__print(true, true, NULL, raw_dump);
 			free(s);
 		}
 	}
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index ff98652484a7..6e0189df2b3b 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include "builtin.h"
@@ -864,13 +865,15 @@ static int __cmd_report(bool display_info)
 		.namespaces	 = perf_event__process_namespaces,
 		.ordered_events	 = true,
 	};
-	struct perf_data_file file = {
-		.path = input_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = force,
 	};
 
-	session = perf_session__new(&file, false, &eops);
+	session = perf_session__new(&data, false, &eops);
 	if (!session) {
 		pr_err("Initializing perf session failed\n");
 		return -1;
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 0f15634ef82c..506564651cda 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -112,6 +113,7 @@ static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
 		if (!perf_mem_events[j].supported) {
 			pr_err("failed: event '%s' not supported\n",
 			       perf_mem_events__name(j));
+			free(rec_argv);
 			return -1;
 		}
 
@@ -235,13 +237,15 @@ static int process_sample_event(struct perf_tool *tool,
 
 static int report_raw_events(struct perf_mem *mem)
 {
-	struct perf_data_file file = {
-		.path = input_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = mem->force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = mem->force,
 	};
 	int ret;
-	struct perf_session *session = perf_session__new(&file, false,
+	struct perf_session *session = perf_session__new(&data, false,
 							 &mem->tool);
 
 	if (session == NULL)
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 56f8142ff97f..3d7f33e19df2 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-record.c
  *
@@ -66,7 +67,7 @@ struct record {
 	struct perf_tool	tool;
 	struct record_opts	opts;
 	u64			bytes_written;
-	struct perf_data_file	file;
+	struct perf_data	data;
 	struct auxtrace_record	*itr;
 	struct perf_evlist	*evlist;
 	struct perf_session	*session;
@@ -107,7 +108,7 @@ static bool switch_output_time(struct record *rec)
 
 static int record__write(struct record *rec, void *bf, size_t size)
 {
-	if (perf_data_file__write(rec->session->file, bf, size) < 0) {
+	if (perf_data__write(rec->session->data, bf, size) < 0) {
 		pr_err("failed to write perf data, error: %m\n");
 		return -1;
 	}
@@ -129,107 +130,12 @@ static int process_synthesized_event(struct perf_tool *tool,
 	return record__write(rec, event, event->header.size);
 }
 
-static int
-backward_rb_find_range(void *buf, int mask, u64 head, u64 *start, u64 *end)
+static int record__pushfn(void *to, void *bf, size_t size)
 {
-	struct perf_event_header *pheader;
-	u64 evt_head = head;
-	int size = mask + 1;
-
-	pr_debug2("backward_rb_find_range: buf=%p, head=%"PRIx64"\n", buf, head);
-	pheader = (struct perf_event_header *)(buf + (head & mask));
-	*start = head;
-	while (true) {
-		if (evt_head - head >= (unsigned int)size) {
-			pr_debug("Finished reading backward ring buffer: rewind\n");
-			if (evt_head - head > (unsigned int)size)
-				evt_head -= pheader->size;
-			*end = evt_head;
-			return 0;
-		}
-
-		pheader = (struct perf_event_header *)(buf + (evt_head & mask));
-
-		if (pheader->size == 0) {
-			pr_debug("Finished reading backward ring buffer: get start\n");
-			*end = evt_head;
-			return 0;
-		}
-
-		evt_head += pheader->size;
-		pr_debug3("move evt_head: %"PRIx64"\n", evt_head);
-	}
-	WARN_ONCE(1, "Shouldn't get here\n");
-	return -1;
-}
-
-static int
-rb_find_range(void *data, int mask, u64 head, u64 old,
-	      u64 *start, u64 *end, bool backward)
-{
-	if (!backward) {
-		*start = old;
-		*end = head;
-		return 0;
-	}
-
-	return backward_rb_find_range(data, mask, head, start, end);
-}
-
-static int
-record__mmap_read(struct record *rec, struct perf_mmap *md,
-		  bool overwrite, bool backward)
-{
-	u64 head = perf_mmap__read_head(md);
-	u64 old = md->prev;
-	u64 end = head, start = old;
-	unsigned char *data = md->base + page_size;
-	unsigned long size;
-	void *buf;
-	int rc = 0;
-
-	if (rb_find_range(data, md->mask, head,
-			  old, &start, &end, backward))
-		return -1;
-
-	if (start == end)
-		return 0;
+	struct record *rec = to;
 
 	rec->samples++;
-
-	size = end - start;
-	if (size > (unsigned long)(md->mask) + 1) {
-		WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n");
-
-		md->prev = head;
-		perf_mmap__consume(md, overwrite || backward);
-		return 0;
-	}
-
-	if ((start & md->mask) + size != (end & md->mask)) {
-		buf = &data[start & md->mask];
-		size = md->mask + 1 - (start & md->mask);
-		start += size;
-
-		if (record__write(rec, buf, size) < 0) {
-			rc = -1;
-			goto out;
-		}
-	}
-
-	buf = &data[start & md->mask];
-	size = end - start;
-	start += size;
-
-	if (record__write(rec, buf, size) < 0) {
-		rc = -1;
-		goto out;
-	}
-
-	md->prev = head;
-	perf_mmap__consume(md, overwrite || backward);
-out:
-	return rc;
+	return record__write(rec, bf, size);
 }
 
 static volatile int done;
@@ -268,13 +174,13 @@ static int record__process_auxtrace(struct perf_tool *tool,
 				    size_t len1, void *data2, size_t len2)
 {
 	struct record *rec = container_of(tool, struct record, tool);
-	struct perf_data_file *file = &rec->file;
+	struct perf_data *data = &rec->data;
 	size_t padding;
 	u8 pad[8] = {0};
 
-	if (!perf_data_file__is_pipe(file)) {
+	if (!perf_data__is_pipe(data)) {
 		off_t file_offset;
-		int fd = perf_data_file__fd(file);
+		int fd = perf_data__fd(data);
 		int err;
 
 		file_offset = lseek(fd, 0, SEEK_CUR);
@@ -493,10 +399,10 @@ static int process_sample_event(struct perf_tool *tool,
 
 static int process_buildids(struct record *rec)
 {
-	struct perf_data_file *file  = &rec->file;
+	struct perf_data *data = &rec->data;
 	struct perf_session *session = rec->session;
 
-	if (file->size == 0)
+	if (data->size == 0)
 		return 0;
 
 	/*
@@ -576,8 +482,7 @@ static int record__mmap_read_evlist(struct record *rec, struct perf_evlist *evli
 		struct auxtrace_mmap *mm = &maps[i].auxtrace_mmap;
 
 		if (maps[i].base) {
-			if (record__mmap_read(rec, &maps[i],
-					      evlist->overwrite, backward) != 0) {
+			if (perf_mmap__push(&maps[i], evlist->overwrite, backward, rec, record__pushfn) != 0) {
 				rc = -1;
 				goto out;
 			}
@@ -640,14 +545,14 @@ static void record__init_features(struct record *rec)
 static void
 record__finish_output(struct record *rec)
 {
-	struct perf_data_file *file = &rec->file;
-	int fd = perf_data_file__fd(file);
+	struct perf_data *data = &rec->data;
+	int fd = perf_data__fd(data);
 
-	if (file->is_pipe)
+	if (data->is_pipe)
 		return;
 
 	rec->session->header.data_size += rec->bytes_written;
-	file->size = lseek(perf_data_file__fd(file), 0, SEEK_CUR);
+	data->size = lseek(perf_data__fd(data), 0, SEEK_CUR);
 
 	if (!rec->no_buildid) {
 		process_buildids(rec);
@@ -686,7 +591,7 @@ static int record__synthesize(struct record *rec, bool tail);
 static int
 record__switch_output(struct record *rec, bool at_exit)
 {
-	struct perf_data_file *file = &rec->file;
+	struct perf_data *data = &rec->data;
 	int fd, err;
 
 	/* Same Size:      "2015122520103046"*/
@@ -704,7 +609,7 @@ record__switch_output(struct record *rec, bool at_exit)
 		return -EINVAL;
 	}
 
-	fd = perf_data_file__switch(file, timestamp,
+	fd = perf_data__switch(data, timestamp,
 				    rec->session->header.data_offset,
 				    at_exit);
 	if (fd >= 0 && !at_exit) {
@@ -714,7 +619,7 @@ record__switch_output(struct record *rec, bool at_exit)
 
 	if (!quiet)
 		fprintf(stderr, "[ perf record: Dump %s.%s ]\n",
-			file->path, timestamp);
+			data->file.path, timestamp);
 
 	/* Output tracking events */
 	if (!at_exit) {
@@ -789,16 +694,16 @@ static int record__synthesize(struct record *rec, bool tail)
 {
 	struct perf_session *session = rec->session;
 	struct machine *machine = &session->machines.host;
-	struct perf_data_file *file = &rec->file;
+	struct perf_data *data = &rec->data;
 	struct record_opts *opts = &rec->opts;
 	struct perf_tool *tool = &rec->tool;
-	int fd = perf_data_file__fd(file);
+	int fd = perf_data__fd(data);
 	int err = 0;
 
 	if (rec->opts.tail_synthesize != tail)
 		return 0;
 
-	if (file->is_pipe) {
+	if (data->is_pipe) {
 		err = perf_event__synthesize_features(
 			tool, session, rec->evlist, process_synthesized_event);
 		if (err < 0) {
@@ -863,7 +768,7 @@ static int record__synthesize(struct record *rec, bool tail)
 
 	err = __machine__synthesize_threads(machine, tool, &opts->target, rec->evlist->threads,
 					    process_synthesized_event, opts->sample_address,
-					    opts->proc_map_timeout);
+					    opts->proc_map_timeout, 1);
 out:
 	return err;
 }
@@ -877,7 +782,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 	struct machine *machine;
 	struct perf_tool *tool = &rec->tool;
 	struct record_opts *opts = &rec->opts;
-	struct perf_data_file *file = &rec->file;
+	struct perf_data *data = &rec->data;
 	struct perf_session *session;
 	bool disabled = false, draining = false;
 	int fd;
@@ -903,20 +808,20 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 		signal(SIGUSR2, SIG_IGN);
 	}
 
-	session = perf_session__new(file, false, tool);
+	session = perf_session__new(data, false, tool);
 	if (session == NULL) {
 		pr_err("Perf session creation failed.\n");
 		return -1;
 	}
 
-	fd = perf_data_file__fd(file);
+	fd = perf_data__fd(data);
 	rec->session = session;
 
 	record__init_features(rec);
 
 	if (forks) {
 		err = perf_evlist__prepare_workload(rec->evlist, &opts->target,
-						    argv, file->is_pipe,
+						    argv, data->is_pipe,
 						    workload_exec_failed_signal);
 		if (err < 0) {
 			pr_err("Couldn't run the workload!\n");
@@ -952,7 +857,7 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
 	if (!rec->evlist->nr_groups)
 		perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
 
-	if (file->is_pipe) {
+	if (data->is_pipe) {
 		err = perf_header__write_pipe(fd);
 		if (err < 0)
 			goto out_child;
@@ -1213,8 +1118,8 @@ out_child:
 			samples[0] = '\0';
 
 		fprintf(stderr,	"[ perf record: Captured and wrote %.3f MB %s%s%s ]\n",
-			perf_data_file__size(file) / 1024.0 / 1024.0,
-			file->path, postfix, samples);
+			perf_data__size(data) / 1024.0 / 1024.0,
+			data->file.path, postfix, samples);
 	}
 
 out_delete_session:
@@ -1578,7 +1483,7 @@ static struct option __record_options[] = {
 	OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu",
 		    "list of cpus to monitor"),
 	OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"),
-	OPT_STRING('o', "output", &record.file.path, "file",
+	OPT_STRING('o', "output", &record.data.file.path, "file",
 		    "output file name"),
 	OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit,
 			&record.opts.no_inherit_set,
@@ -1643,6 +1548,9 @@ static struct option __record_options[] = {
 	OPT_CALLBACK_OPTARG('I', "intr-regs", &record.opts.sample_intr_regs, NULL, "any register",
 		    "sample selected machine registers on interrupt,"
 		    " use -I ? to list register names", parse_regs),
+	OPT_CALLBACK_OPTARG(0, "user-regs", &record.opts.sample_user_regs, NULL, "any register",
+		    "sample selected machine registers on interrupt,"
+		    " use -I ? to list register names", parse_regs),
 	OPT_BOOLEAN(0, "running-time", &record.opts.running_time,
 		    "Record running/enabled time of read (:S) events"),
 	OPT_CALLBACK('k', "clockid", &record.opts,
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f9dff652dcbd..1394cd8d96f7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-report.c
  *
@@ -257,7 +258,7 @@ static int report__setup_sample_type(struct report *rep)
 {
 	struct perf_session *session = rep->session;
 	u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
-	bool is_pipe = perf_data_file__is_pipe(session->file);
+	bool is_pipe = perf_data__is_pipe(session->data);
 
 	if (session->itrace_synth_opts->callchain ||
 	    (!is_pipe &&
@@ -568,7 +569,7 @@ static int __cmd_report(struct report *rep)
 	int ret;
 	struct perf_session *session = rep->session;
 	struct perf_evsel *pos;
-	struct perf_data_file *file = session->file;
+	struct perf_data *data = session->data;
 
 	signal(SIGINT, sig_handler);
 
@@ -637,7 +638,7 @@ static int __cmd_report(struct report *rep)
 		rep->nr_entries += evsel__hists(pos)->nr_entries;
 
 	if (rep->nr_entries == 0) {
-		ui__error("The %s file has no samples!\n", file->path);
+		ui__error("The %s file has no samples!\n", data->file.path);
 		return 0;
 	}
 
@@ -879,7 +880,7 @@ int cmd_report(int argc, const char **argv)
 		    "Show inline function"),
 	OPT_END()
 	};
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode  = PERF_DATA_MODE_READ,
 	};
 	int ret = hists__init();
@@ -940,11 +941,11 @@ int cmd_report(int argc, const char **argv)
 			input_name = "perf.data";
 	}
 
-	file.path  = input_name;
-	file.force = symbol_conf.force;
+	data.file.path = input_name;
+	data.force     = symbol_conf.force;
 
 repeat:
-	session = perf_session__new(&file, false, &report.tool);
+	session = perf_session__new(&data, false, &report.tool);
 	if (session == NULL)
 		return -1;
 
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 322b4def8411..83283fedb00f 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "builtin.h"
 #include "perf.h"
 
@@ -1700,14 +1701,16 @@ static int perf_sched__read_events(struct perf_sched *sched)
 		{ "sched:sched_migrate_task", process_sched_migrate_task_event, },
 	};
 	struct perf_session *session;
-	struct perf_data_file file = {
-		.path = input_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = sched->force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = sched->force,
 	};
 	int rc = -1;
 
-	session = perf_session__new(&file, false, &sched->tool);
+	session = perf_session__new(&data, false, &sched->tool);
 	if (session == NULL) {
 		pr_debug("No Memory for session\n");
 		return -1;
@@ -2902,10 +2905,12 @@ static int perf_sched__timehist(struct perf_sched *sched)
 	const struct perf_evsel_str_handler migrate_handlers[] = {
 		{ "sched:sched_migrate_task", timehist_migrate_task_event, },
 	};
-	struct perf_data_file file = {
-		.path = input_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = sched->force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = sched->force,
 	};
 
 	struct perf_session *session;
@@ -2930,7 +2935,7 @@ static int perf_sched__timehist(struct perf_sched *sched)
 
 	symbol_conf.use_callchain = sched->show_callchain;
 
-	session = perf_session__new(&file, false, &sched->tool);
+	session = perf_session__new(&data, false, &sched->tool);
 	if (session == NULL)
 		return -ENOMEM;
 
@@ -3363,6 +3368,10 @@ int cmd_sched(int argc, const char **argv)
 	OPT_STRING(0, "time", &sched.time_str, "str",
 		   "Time span for analysis (start,stop)"),
 	OPT_BOOLEAN(0, "state", &sched.show_state, "Show task state when sched-out"),
+	OPT_STRING('p', "pid", &symbol_conf.pid_list_str, "pid[,pid...]",
+		   "analyze events only for given process id(s)"),
+	OPT_STRING('t', "tid", &symbol_conf.tid_list_str, "tid[,tid...]",
+		   "analyze events only for given thread id(s)"),
 	OPT_PARENT(sched_options)
 	};
 
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 3d4c3b5e1868..68f36dc0344f 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "builtin.h"
 
 #include "perf.h"
@@ -88,6 +89,7 @@ enum perf_output_field {
 	PERF_OUTPUT_BRSTACKOFF	    = 1U << 24,
 	PERF_OUTPUT_SYNTH           = 1U << 25,
 	PERF_OUTPUT_PHYS_ADDR       = 1U << 26,
+	PERF_OUTPUT_UREGS	    = 1U << 27,
 };
 
 struct output_option {
@@ -109,6 +111,7 @@ struct output_option {
 	{.str = "srcline", .field = PERF_OUTPUT_SRCLINE},
 	{.str = "period", .field = PERF_OUTPUT_PERIOD},
 	{.str = "iregs", .field = PERF_OUTPUT_IREGS},
+	{.str = "uregs", .field = PERF_OUTPUT_UREGS},
 	{.str = "brstack", .field = PERF_OUTPUT_BRSTACK},
 	{.str = "brstacksym", .field = PERF_OUTPUT_BRSTACKSYM},
 	{.str = "data_src", .field = PERF_OUTPUT_DATA_SRC},
@@ -208,6 +211,51 @@ static struct {
 	},
 };
 
+struct perf_evsel_script {
+       char *filename;
+       FILE *fp;
+       u64  samples;
+};
+
+static struct perf_evsel_script *perf_evsel_script__new(struct perf_evsel *evsel,
+							struct perf_data *data)
+{
+	struct perf_evsel_script *es = malloc(sizeof(*es));
+
+	if (es != NULL) {
+		if (asprintf(&es->filename, "%s.%s.dump", data->file.path, perf_evsel__name(evsel)) < 0)
+			goto out_free;
+		es->fp = fopen(es->filename, "w");
+		if (es->fp == NULL)
+			goto out_free_filename;
+		es->samples = 0;
+	}
+
+	return es;
+out_free_filename:
+	zfree(&es->filename);
+out_free:
+	free(es);
+	return NULL;
+}
+
+static void perf_evsel_script__delete(struct perf_evsel_script *es)
+{
+	zfree(&es->filename);
+	fclose(es->fp);
+	es->fp = NULL;
+	free(es);
+}
+
+static int perf_evsel_script__fprintf(struct perf_evsel_script *es, FILE *fp)
+{
+	struct stat st;
+
+	fstat(fileno(es->fp), &st);
+	return fprintf(fp, "[ perf script: Wrote %.3f MB %s (%" PRIu64 " samples) ]\n",
+		       st.st_size / 1024.0 / 1024.0, es->filename, es->samples);
+}
+
 static inline int output_type(unsigned int type)
 {
 	switch (type) {
@@ -385,6 +433,11 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
 					PERF_OUTPUT_IREGS))
 		return -EINVAL;
 
+	if (PRINT_FIELD(UREGS) &&
+		perf_evsel__check_stype(evsel, PERF_SAMPLE_REGS_USER, "UREGS",
+					PERF_OUTPUT_UREGS))
+		return -EINVAL;
+
 	if (PRINT_FIELD(PHYS_ADDR) &&
 		perf_evsel__check_stype(evsel, PERF_SAMPLE_PHYS_ADDR, "PHYS_ADDR",
 					PERF_OUTPUT_PHYS_ADDR))
@@ -493,51 +546,76 @@ out:
 	return 0;
 }
 
-static void print_sample_iregs(struct perf_sample *sample,
-			  struct perf_event_attr *attr)
+static int perf_sample__fprintf_iregs(struct perf_sample *sample,
+				      struct perf_event_attr *attr, FILE *fp)
 {
 	struct regs_dump *regs = &sample->intr_regs;
 	uint64_t mask = attr->sample_regs_intr;
 	unsigned i = 0, r;
+	int printed = 0;
 
 	if (!regs)
-		return;
+		return 0;
 
 	for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
 		u64 val = regs->regs[i++];
-		printf("%5s:0x%"PRIx64" ", perf_reg_name(r), val);
+		printed += fprintf(fp, "%5s:0x%"PRIx64" ", perf_reg_name(r), val);
 	}
+
+	return printed;
 }
 
-static void print_sample_start(struct perf_sample *sample,
-			       struct thread *thread,
-			       struct perf_evsel *evsel)
+static int perf_sample__fprintf_uregs(struct perf_sample *sample,
+				      struct perf_event_attr *attr, FILE *fp)
+{
+	struct regs_dump *regs = &sample->user_regs;
+	uint64_t mask = attr->sample_regs_user;
+	unsigned i = 0, r;
+	int printed = 0;
+
+	if (!regs || !regs->regs)
+		return 0;
+
+	printed += fprintf(fp, " ABI:%" PRIu64 " ", regs->abi);
+
+	for_each_set_bit(r, (unsigned long *) &mask, sizeof(mask) * 8) {
+		u64 val = regs->regs[i++];
+		printed += fprintf(fp, "%5s:0x%"PRIx64" ", perf_reg_name(r), val);
+	}
+
+	return printed;
+}
+
+static int perf_sample__fprintf_start(struct perf_sample *sample,
+				      struct thread *thread,
+				      struct perf_evsel *evsel, FILE *fp)
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	unsigned long secs;
 	unsigned long long nsecs;
+	int printed = 0;
 
 	if (PRINT_FIELD(COMM)) {
 		if (latency_format)
-			printf("%8.8s ", thread__comm_str(thread));
+			printed += fprintf(fp, "%8.8s ", thread__comm_str(thread));
 		else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
-			printf("%s ", thread__comm_str(thread));
+			printed += fprintf(fp, "%s ", thread__comm_str(thread));
 		else
-			printf("%16s ", thread__comm_str(thread));
+			printed += fprintf(fp, "%16s ", thread__comm_str(thread));
 	}
 
 	if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
-		printf("%5d/%-5d ", sample->pid, sample->tid);
+		printed += fprintf(fp, "%5d/%-5d ", sample->pid, sample->tid);
 	else if (PRINT_FIELD(PID))
-		printf("%5d ", sample->pid);
+		printed += fprintf(fp, "%5d ", sample->pid);
 	else if (PRINT_FIELD(TID))
-		printf("%5d ", sample->tid);
+		printed += fprintf(fp, "%5d ", sample->tid);
 
 	if (PRINT_FIELD(CPU)) {
 		if (latency_format)
-			printf("%3d ", sample->cpu);
+			printed += fprintf(fp, "%3d ", sample->cpu);
 		else
-			printf("[%03d] ", sample->cpu);
+			printed += fprintf(fp, "[%03d] ", sample->cpu);
 	}
 
 	if (PRINT_FIELD(TIME)) {
@@ -546,13 +624,15 @@ static void print_sample_start(struct perf_sample *sample,
 		nsecs -= secs * NSEC_PER_SEC;
 
 		if (nanosecs)
-			printf("%5lu.%09llu: ", secs, nsecs);
+			printed += fprintf(fp, "%5lu.%09llu: ", secs, nsecs);
 		else {
 			char sample_time[32];
 			timestamp__scnprintf_usec(sample->time, sample_time, sizeof(sample_time));
-			printf("%12s: ", sample_time);
+			printed += fprintf(fp, "%12s: ", sample_time);
 		}
 	}
+
+	return printed;
 }
 
 static inline char
@@ -564,16 +644,17 @@ mispred_str(struct branch_entry *br)
 	return br->flags.predicted ? 'P' : 'M';
 }
 
-static void print_sample_brstack(struct perf_sample *sample,
-				 struct thread *thread,
-				 struct perf_event_attr *attr)
+static int perf_sample__fprintf_brstack(struct perf_sample *sample,
+					struct thread *thread,
+					struct perf_event_attr *attr, FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	struct addr_location alf, alt;
 	u64 i, from, to;
+	int printed = 0;
 
 	if (!(br && br->nr))
-		return;
+		return 0;
 
 	for (i = 0; i < br->nr; i++) {
 		from = br->entries[i].from;
@@ -586,38 +667,41 @@ static void print_sample_brstack(struct perf_sample *sample,
 			thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
 		}
 
-		printf("0x%"PRIx64, from);
+		printed += fprintf(fp, " 0x%"PRIx64, from);
 		if (PRINT_FIELD(DSO)) {
-			printf("(");
-			map__fprintf_dsoname(alf.map, stdout);
-			printf(")");
+			printed += fprintf(fp, "(");
+			printed += map__fprintf_dsoname(alf.map, fp);
+			printed += fprintf(fp, ")");
 		}
 
-		printf("/0x%"PRIx64, to);
+		printed += fprintf(fp, "/0x%"PRIx64, to);
 		if (PRINT_FIELD(DSO)) {
-			printf("(");
-			map__fprintf_dsoname(alt.map, stdout);
-			printf(")");
+			printed += fprintf(fp, "(");
+			printed += map__fprintf_dsoname(alt.map, fp);
+			printed += fprintf(fp, ")");
 		}
 
-		printf("/%c/%c/%c/%d ",
+		printed += fprintf(fp, "/%c/%c/%c/%d ",
 			mispred_str( br->entries + i),
 			br->entries[i].flags.in_tx? 'X' : '-',
 			br->entries[i].flags.abort? 'A' : '-',
 			br->entries[i].flags.cycles);
 	}
+
+	return printed;
 }
 
-static void print_sample_brstacksym(struct perf_sample *sample,
-				    struct thread *thread,
-				    struct perf_event_attr *attr)
+static int perf_sample__fprintf_brstacksym(struct perf_sample *sample,
+					   struct thread *thread,
+					   struct perf_event_attr *attr, FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	struct addr_location alf, alt;
 	u64 i, from, to;
+	int printed = 0;
 
 	if (!(br && br->nr))
-		return;
+		return 0;
 
 	for (i = 0; i < br->nr; i++) {
 
@@ -634,37 +718,40 @@ static void print_sample_brstacksym(struct perf_sample *sample,
 		if (alt.map)
 			alt.sym = map__find_symbol(alt.map, alt.addr);
 
-		symbol__fprintf_symname_offs(alf.sym, &alf, stdout);
+		printed += symbol__fprintf_symname_offs(alf.sym, &alf, fp);
 		if (PRINT_FIELD(DSO)) {
-			printf("(");
-			map__fprintf_dsoname(alf.map, stdout);
-			printf(")");
+			printed += fprintf(fp, "(");
+			printed += map__fprintf_dsoname(alf.map, fp);
+			printed += fprintf(fp, ")");
 		}
-		putchar('/');
-		symbol__fprintf_symname_offs(alt.sym, &alt, stdout);
+		printed += fprintf(fp, "%c", '/');
+		printed += symbol__fprintf_symname_offs(alt.sym, &alt, fp);
 		if (PRINT_FIELD(DSO)) {
-			printf("(");
-			map__fprintf_dsoname(alt.map, stdout);
-			printf(")");
+			printed += fprintf(fp, "(");
+			printed += map__fprintf_dsoname(alt.map, fp);
+			printed += fprintf(fp, ")");
 		}
-		printf("/%c/%c/%c/%d ",
+		printed += fprintf(fp, "/%c/%c/%c/%d ",
 			mispred_str( br->entries + i),
 			br->entries[i].flags.in_tx? 'X' : '-',
 			br->entries[i].flags.abort? 'A' : '-',
 			br->entries[i].flags.cycles);
 	}
+
+	return printed;
 }
 
-static void print_sample_brstackoff(struct perf_sample *sample,
-				    struct thread *thread,
-				    struct perf_event_attr *attr)
+static int perf_sample__fprintf_brstackoff(struct perf_sample *sample,
+					   struct thread *thread,
+					   struct perf_event_attr *attr, FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	struct addr_location alf, alt;
 	u64 i, from, to;
+	int printed = 0;
 
 	if (!(br && br->nr))
-		return;
+		return 0;
 
 	for (i = 0; i < br->nr; i++) {
 
@@ -681,24 +768,26 @@ static void print_sample_brstackoff(struct perf_sample *sample,
 		if (alt.map && !alt.map->dso->adjust_symbols)
 			to = map__map_ip(alt.map, to);
 
-		printf("0x%"PRIx64, from);
+		printed += fprintf(fp, " 0x%"PRIx64, from);
 		if (PRINT_FIELD(DSO)) {
-			printf("(");
-			map__fprintf_dsoname(alf.map, stdout);
-			printf(")");
+			printed += fprintf(fp, "(");
+			printed += map__fprintf_dsoname(alf.map, fp);
+			printed += fprintf(fp, ")");
 		}
-		printf("/0x%"PRIx64, to);
+		printed += fprintf(fp, "/0x%"PRIx64, to);
 		if (PRINT_FIELD(DSO)) {
-			printf("(");
-			map__fprintf_dsoname(alt.map, stdout);
-			printf(")");
+			printed += fprintf(fp, "(");
+			printed += map__fprintf_dsoname(alt.map, fp);
+			printed += fprintf(fp, ")");
 		}
-		printf("/%c/%c/%c/%d ",
+		printed += fprintf(fp, "/%c/%c/%c/%d ",
 			mispred_str(br->entries + i),
 			br->entries[i].flags.in_tx ? 'X' : '-',
 			br->entries[i].flags.abort ? 'A' : '-',
 			br->entries[i].flags.cycles);
 	}
+
+	return printed;
 }
 #define MAXBB 16384UL
 
@@ -726,27 +815,26 @@ static int grab_bb(u8 *buffer, u64 start, u64 end,
 	 * but the exit is not. Let the caller patch it up.
 	 */
 	if (kernel != machine__kernel_ip(machine, end)) {
-		printf("\tblock %" PRIx64 "-%" PRIx64 " transfers between kernel and user\n",
-				start, end);
+		pr_debug("\tblock %" PRIx64 "-%" PRIx64 " transfers between kernel and user\n", start, end);
 		return -ENXIO;
 	}
 
 	memset(&al, 0, sizeof(al));
 	if (end - start > MAXBB - MAXINSN) {
 		if (last)
-			printf("\tbrstack does not reach to final jump (%" PRIx64 "-%" PRIx64 ")\n", start, end);
+			pr_debug("\tbrstack does not reach to final jump (%" PRIx64 "-%" PRIx64 ")\n", start, end);
 		else
-			printf("\tblock %" PRIx64 "-%" PRIx64 " (%" PRIu64 ") too long to dump\n", start, end, end - start);
+			pr_debug("\tblock %" PRIx64 "-%" PRIx64 " (%" PRIu64 ") too long to dump\n", start, end, end - start);
 		return 0;
 	}
 
 	thread__find_addr_map(thread, *cpumode, MAP__FUNCTION, start, &al);
 	if (!al.map || !al.map->dso) {
-		printf("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
+		pr_debug("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
 		return 0;
 	}
 	if (al.map->dso->data.status == DSO_DATA_STATUS_ERROR) {
-		printf("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
+		pr_debug("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
 		return 0;
 	}
 
@@ -759,36 +847,35 @@ static int grab_bb(u8 *buffer, u64 start, u64 end,
 
 	*is64bit = al.map->dso->is_64_bit;
 	if (len <= 0)
-		printf("\tcannot fetch code for block at %" PRIx64 "-%" PRIx64 "\n",
+		pr_debug("\tcannot fetch code for block at %" PRIx64 "-%" PRIx64 "\n",
 			start, end);
 	return len;
 }
 
-static void print_jump(uint64_t ip, struct branch_entry *en,
-		       struct perf_insn *x, u8 *inbuf, int len,
-		       int insn)
+static int ip__fprintf_jump(uint64_t ip, struct branch_entry *en,
+			    struct perf_insn *x, u8 *inbuf, int len,
+			    int insn, FILE *fp)
 {
-	printf("\t%016" PRIx64 "\t%-30s\t#%s%s%s%s",
-	       ip,
-	       dump_insn(x, ip, inbuf, len, NULL),
-	       en->flags.predicted ? " PRED" : "",
-	       en->flags.mispred ? " MISPRED" : "",
-	       en->flags.in_tx ? " INTX" : "",
-	       en->flags.abort ? " ABORT" : "");
+	int printed = fprintf(fp, "\t%016" PRIx64 "\t%-30s\t#%s%s%s%s", ip,
+			      dump_insn(x, ip, inbuf, len, NULL),
+			      en->flags.predicted ? " PRED" : "",
+			      en->flags.mispred ? " MISPRED" : "",
+			      en->flags.in_tx ? " INTX" : "",
+			      en->flags.abort ? " ABORT" : "");
 	if (en->flags.cycles) {
-		printf(" %d cycles", en->flags.cycles);
+		printed += fprintf(fp, " %d cycles", en->flags.cycles);
 		if (insn)
-			printf(" %.2f IPC", (float)insn / en->flags.cycles);
+			printed += fprintf(fp, " %.2f IPC", (float)insn / en->flags.cycles);
 	}
-	putchar('\n');
+	return printed + fprintf(fp, "\n");
 }
 
-static void print_ip_sym(struct thread *thread, u8 cpumode, int cpu,
-			 uint64_t addr, struct symbol **lastsym,
-			 struct perf_event_attr *attr)
+static int ip__fprintf_sym(uint64_t addr, struct thread *thread,
+			   u8 cpumode, int cpu, struct symbol **lastsym,
+			   struct perf_event_attr *attr, FILE *fp)
 {
 	struct addr_location al;
-	int off;
+	int off, printed = 0;
 
 	memset(&al, 0, sizeof(al));
 
@@ -797,7 +884,7 @@ static void print_ip_sym(struct thread *thread, u8 cpumode, int cpu,
 		thread__find_addr_map(thread, cpumode, MAP__VARIABLE,
 				      addr, &al);
 	if ((*lastsym) && al.addr >= (*lastsym)->start && al.addr < (*lastsym)->end)
-		return;
+		return 0;
 
 	al.cpu = cpu;
 	al.sym = NULL;
@@ -805,37 +892,39 @@ static void print_ip_sym(struct thread *thread, u8 cpumode, int cpu,
 		al.sym = map__find_symbol(al.map, al.addr);
 
 	if (!al.sym)
-		return;
+		return 0;
 
 	if (al.addr < al.sym->end)
 		off = al.addr - al.sym->start;
 	else
 		off = al.addr - al.map->start - al.sym->start;
-	printf("\t%s", al.sym->name);
+	printed += fprintf(fp, "\t%s", al.sym->name);
 	if (off)
-		printf("%+d", off);
-	putchar(':');
+		printed += fprintf(fp, "%+d", off);
+	printed += fprintf(fp, ":");
 	if (PRINT_FIELD(SRCLINE))
-		map__fprintf_srcline(al.map, al.addr, "\t", stdout);
-	putchar('\n');
+		printed += map__fprintf_srcline(al.map, al.addr, "\t", fp);
+	printed += fprintf(fp, "\n");
 	*lastsym = al.sym;
+
+	return printed;
 }
 
-static void print_sample_brstackinsn(struct perf_sample *sample,
-				     struct thread *thread,
-				     struct perf_event_attr *attr,
-				     struct machine *machine)
+static int perf_sample__fprintf_brstackinsn(struct perf_sample *sample,
+					    struct thread *thread,
+					    struct perf_event_attr *attr,
+					    struct machine *machine, FILE *fp)
 {
 	struct branch_stack *br = sample->branch_stack;
 	u64 start, end;
-	int i, insn, len, nr, ilen;
+	int i, insn, len, nr, ilen, printed = 0;
 	struct perf_insn x;
 	u8 buffer[MAXBB];
 	unsigned off;
 	struct symbol *lastsym = NULL;
 
 	if (!(br && br->nr))
-		return;
+		return 0;
 	nr = br->nr;
 	if (max_blocks && nr > max_blocks + 1)
 		nr = max_blocks + 1;
@@ -843,17 +932,17 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 	x.thread = thread;
 	x.cpu = sample->cpu;
 
-	putchar('\n');
+	printed += fprintf(fp, "%c", '\n');
 
 	/* Handle first from jump, of which we don't know the entry. */
 	len = grab_bb(buffer, br->entries[nr-1].from,
 			br->entries[nr-1].from,
 			machine, thread, &x.is64bit, &x.cpumode, false);
 	if (len > 0) {
-		print_ip_sym(thread, x.cpumode, x.cpu,
-			     br->entries[nr - 1].from, &lastsym, attr);
-		print_jump(br->entries[nr - 1].from, &br->entries[nr - 1],
-			    &x, buffer, len, 0);
+		printed += ip__fprintf_sym(br->entries[nr - 1].from, thread,
+					   x.cpumode, x.cpu, &lastsym, attr, fp);
+		printed += ip__fprintf_jump(br->entries[nr - 1].from, &br->entries[nr - 1],
+					    &x, buffer, len, 0, fp);
 	}
 
 	/* Print all blocks */
@@ -879,13 +968,13 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 		for (off = 0;; off += ilen) {
 			uint64_t ip = start + off;
 
-			print_ip_sym(thread, x.cpumode, x.cpu, ip, &lastsym, attr);
+			printed += ip__fprintf_sym(ip, thread, x.cpumode, x.cpu, &lastsym, attr, fp);
 			if (ip == end) {
-				print_jump(ip, &br->entries[i], &x, buffer + off, len - off, insn);
+				printed += ip__fprintf_jump(ip, &br->entries[i], &x, buffer + off, len - off, insn, fp);
 				break;
 			} else {
-				printf("\t%016" PRIx64 "\t%s\n", ip,
-					dump_insn(&x, ip, buffer + off, len - off, &ilen));
+				printed += fprintf(fp, "\t%016" PRIx64 "\t%s\n", ip,
+						   dump_insn(&x, ip, buffer + off, len - off, &ilen));
 				if (ilen == 0)
 					break;
 				insn++;
@@ -898,9 +987,9 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 	 * has not been executed yet.
 	 */
 	if (br->entries[0].from == sample->ip)
-		return;
+		goto out;
 	if (br->entries[0].flags.abort)
-		return;
+		goto out;
 
 	/*
 	 * Print final block upto sample
@@ -908,58 +997,61 @@ static void print_sample_brstackinsn(struct perf_sample *sample,
 	start = br->entries[0].to;
 	end = sample->ip;
 	len = grab_bb(buffer, start, end, machine, thread, &x.is64bit, &x.cpumode, true);
-	print_ip_sym(thread, x.cpumode, x.cpu, start, &lastsym, attr);
+	printed += ip__fprintf_sym(start, thread, x.cpumode, x.cpu, &lastsym, attr, fp);
 	if (len <= 0) {
 		/* Print at least last IP if basic block did not work */
 		len = grab_bb(buffer, sample->ip, sample->ip,
 			      machine, thread, &x.is64bit, &x.cpumode, false);
 		if (len <= 0)
-			return;
+			goto out;
 
-		printf("\t%016" PRIx64 "\t%s\n", sample->ip,
+		printed += fprintf(fp, "\t%016" PRIx64 "\t%s\n", sample->ip,
 			dump_insn(&x, sample->ip, buffer, len, NULL));
-		return;
+		goto out;
 	}
 	for (off = 0; off <= end - start; off += ilen) {
-		printf("\t%016" PRIx64 "\t%s\n", start + off,
-			dump_insn(&x, start + off, buffer + off, len - off, &ilen));
+		printed += fprintf(fp, "\t%016" PRIx64 "\t%s\n", start + off,
+				   dump_insn(&x, start + off, buffer + off, len - off, &ilen));
 		if (ilen == 0)
 			break;
 	}
+out:
+	return printed;
 }
 
-static void print_sample_addr(struct perf_sample *sample,
-			  struct thread *thread,
-			  struct perf_event_attr *attr)
+static int perf_sample__fprintf_addr(struct perf_sample *sample,
+				     struct thread *thread,
+				     struct perf_event_attr *attr, FILE *fp)
 {
 	struct addr_location al;
-
-	printf("%16" PRIx64, sample->addr);
+	int printed = fprintf(fp, "%16" PRIx64, sample->addr);
 
 	if (!sample_addr_correlates_sym(attr))
-		return;
+		goto out;
 
 	thread__resolve(thread, &al, sample);
 
 	if (PRINT_FIELD(SYM)) {
-		printf(" ");
+		printed += fprintf(fp, " ");
 		if (PRINT_FIELD(SYMOFFSET))
-			symbol__fprintf_symname_offs(al.sym, &al, stdout);
+			printed += symbol__fprintf_symname_offs(al.sym, &al, fp);
 		else
-			symbol__fprintf_symname(al.sym, stdout);
+			printed += symbol__fprintf_symname(al.sym, fp);
 	}
 
 	if (PRINT_FIELD(DSO)) {
-		printf(" (");
-		map__fprintf_dsoname(al.map, stdout);
-		printf(")");
+		printed += fprintf(fp, " (");
+		printed += map__fprintf_dsoname(al.map, fp);
+		printed += fprintf(fp, ")");
 	}
+out:
+	return printed;
 }
 
-static void print_sample_callindent(struct perf_sample *sample,
-				    struct perf_evsel *evsel,
-				    struct thread *thread,
-				    struct addr_location *al)
+static int perf_sample__fprintf_callindent(struct perf_sample *sample,
+					   struct perf_evsel *evsel,
+					   struct thread *thread,
+					   struct addr_location *al, FILE *fp)
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	size_t depth = thread_stack__depth(thread);
@@ -994,12 +1086,12 @@ static void print_sample_callindent(struct perf_sample *sample,
 	}
 
 	if (name)
-		len = printf("%*s%s", (int)depth * 4, "", name);
+		len = fprintf(fp, "%*s%s", (int)depth * 4, "", name);
 	else if (ip)
-		len = printf("%*s%16" PRIx64, (int)depth * 4, "", ip);
+		len = fprintf(fp, "%*s%16" PRIx64, (int)depth * 4, "", ip);
 
 	if (len < 0)
-		return;
+		return len;
 
 	/*
 	 * Try to keep the output length from changing frequently so that the
@@ -1009,39 +1101,46 @@ static void print_sample_callindent(struct perf_sample *sample,
 		spacing = round_up(len + 4, 32);
 
 	if (len < spacing)
-		printf("%*s", spacing - len, "");
+		len += fprintf(fp, "%*s", spacing - len, "");
+
+	return len;
 }
 
-static void print_insn(struct perf_sample *sample,
-		       struct perf_event_attr *attr,
-		       struct thread *thread,
-		       struct machine *machine)
+static int perf_sample__fprintf_insn(struct perf_sample *sample,
+				     struct perf_event_attr *attr,
+				     struct thread *thread,
+				     struct machine *machine, FILE *fp)
 {
+	int printed = 0;
+
 	if (PRINT_FIELD(INSNLEN))
-		printf(" ilen: %d", sample->insn_len);
+		printed += fprintf(fp, " ilen: %d", sample->insn_len);
 	if (PRINT_FIELD(INSN)) {
 		int i;
 
-		printf(" insn:");
+		printed += fprintf(fp, " insn:");
 		for (i = 0; i < sample->insn_len; i++)
-			printf(" %02x", (unsigned char)sample->insn[i]);
+			printed += fprintf(fp, " %02x", (unsigned char)sample->insn[i]);
 	}
 	if (PRINT_FIELD(BRSTACKINSN))
-		print_sample_brstackinsn(sample, thread, attr, machine);
+		printed += perf_sample__fprintf_brstackinsn(sample, thread, attr, machine, fp);
+
+	return printed;
 }
 
-static void print_sample_bts(struct perf_sample *sample,
-			     struct perf_evsel *evsel,
-			     struct thread *thread,
-			     struct addr_location *al,
-			     struct machine *machine)
+static int perf_sample__fprintf_bts(struct perf_sample *sample,
+				    struct perf_evsel *evsel,
+				    struct thread *thread,
+				    struct addr_location *al,
+				    struct machine *machine, FILE *fp)
 {
 	struct perf_event_attr *attr = &evsel->attr;
 	unsigned int type = output_type(attr->type);
 	bool print_srcline_last = false;
+	int printed = 0;
 
 	if (PRINT_FIELD(CALLINDENT))
-		print_sample_callindent(sample, evsel, thread, al);
+		printed += perf_sample__fprintf_callindent(sample, evsel, thread, al, fp);
 
 	/* print branch_from information */
 	if (PRINT_FIELD(IP)) {
@@ -1054,31 +1153,30 @@ static void print_sample_bts(struct perf_sample *sample,
 			cursor = &callchain_cursor;
 
 		if (cursor == NULL) {
-			putchar(' ');
+			printed += fprintf(fp, " ");
 			if (print_opts & EVSEL__PRINT_SRCLINE) {
 				print_srcline_last = true;
 				print_opts &= ~EVSEL__PRINT_SRCLINE;
 			}
 		} else
-			putchar('\n');
+			printed += fprintf(fp, "\n");
 
-		sample__fprintf_sym(sample, al, 0, print_opts, cursor, stdout);
+		printed += sample__fprintf_sym(sample, al, 0, print_opts, cursor, fp);
 	}
 
 	/* print branch_to information */
 	if (PRINT_FIELD(ADDR) ||
 	    ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
 	     !output[type].user_set)) {
-		printf(" => ");
-		print_sample_addr(sample, thread, attr);
+		printed += fprintf(fp, " => ");
+		printed += perf_sample__fprintf_addr(sample, thread, attr, fp);
 	}
 
 	if (print_srcline_last)
-		map__fprintf_srcline(al->map, al->addr, "\n  ", stdout);
-
-	print_insn(sample, attr, thread, machine);
+		printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 
-	printf("\n");
+	printed += perf_sample__fprintf_insn(sample, attr, thread, machine, fp);
+	return printed + fprintf(fp, "\n");
 }
 
 static struct {
@@ -1101,7 +1199,7 @@ static struct {
 	{0, NULL}
 };
 
-static void print_sample_flags(u32 flags)
+static int perf_sample__fprintf_flags(u32 flags, FILE *fp)
 {
 	const char *chars = PERF_IP_FLAG_CHARS;
 	const int n = strlen(PERF_IP_FLAG_CHARS);
@@ -1128,9 +1226,9 @@ static void print_sample_flags(u32 flags)
 	str[pos] = 0;
 
 	if (name)
-		printf("  %-7s%4s ", name, in_tx ? "(x)" : "");
-	else
-		printf("  %-11s ", str);
+		return fprintf(fp, "  %-7s%4s ", name, in_tx ? "(x)" : "");
+
+	return fprintf(fp, "  %-11s ", str);
 }
 
 struct printer_data {
@@ -1139,40 +1237,40 @@ struct printer_data {
 	bool is_printable;
 };
 
-static void
-print_sample_bpf_output_printer(enum binary_printer_ops op,
-				unsigned int val,
-				void *extra)
+static int sample__fprintf_bpf_output(enum binary_printer_ops op,
+				      unsigned int val,
+				      void *extra, FILE *fp)
 {
 	unsigned char ch = (unsigned char)val;
 	struct printer_data *printer_data = extra;
+	int printed = 0;
 
 	switch (op) {
 	case BINARY_PRINT_DATA_BEGIN:
-		printf("\n");
+		printed += fprintf(fp, "\n");
 		break;
 	case BINARY_PRINT_LINE_BEGIN:
-		printf("%17s", !printer_data->line_no ? "BPF output:" :
+		printed += fprintf(fp, "%17s", !printer_data->line_no ? "BPF output:" :
 						        "           ");
 		break;
 	case BINARY_PRINT_ADDR:
-		printf(" %04x:", val);
+		printed += fprintf(fp, " %04x:", val);
 		break;
 	case BINARY_PRINT_NUM_DATA:
-		printf(" %02x", val);
+		printed += fprintf(fp, " %02x", val);
 		break;
 	case BINARY_PRINT_NUM_PAD:
-		printf("   ");
+		printed += fprintf(fp, "   ");
 		break;
 	case BINARY_PRINT_SEP:
-		printf("  ");
+		printed += fprintf(fp, "  ");
 		break;
 	case BINARY_PRINT_CHAR_DATA:
 		if (printer_data->hit_nul && ch)
 			printer_data->is_printable = false;
 
 		if (!isprint(ch)) {
-			printf("%c", '.');
+			printed += fprintf(fp, "%c", '.');
 
 			if (!printer_data->is_printable)
 				break;
@@ -1182,154 +1280,154 @@ print_sample_bpf_output_printer(enum binary_printer_ops op,
 			else
 				printer_data->is_printable = false;
 		} else {
-			printf("%c", ch);
+			printed += fprintf(fp, "%c", ch);
 		}
 		break;
 	case BINARY_PRINT_CHAR_PAD:
-		printf(" ");
+		printed += fprintf(fp, " ");
 		break;
 	case BINARY_PRINT_LINE_END:
-		printf("\n");
+		printed += fprintf(fp, "\n");
 		printer_data->line_no++;
 		break;
 	case BINARY_PRINT_DATA_END:
 	default:
 		break;
 	}
+
+	return printed;
 }
 
-static void print_sample_bpf_output(struct perf_sample *sample)
+static int perf_sample__fprintf_bpf_output(struct perf_sample *sample, FILE *fp)
 {
 	unsigned int nr_bytes = sample->raw_size;
 	struct printer_data printer_data = {0, false, true};
-
-	print_binary(sample->raw_data, nr_bytes, 8,
-		     print_sample_bpf_output_printer, &printer_data);
+	int printed = binary__fprintf(sample->raw_data, nr_bytes, 8,
+				      sample__fprintf_bpf_output, &printer_data, fp);
 
 	if (printer_data.is_printable && printer_data.hit_nul)
-		printf("%17s \"%s\"\n", "BPF string:",
-		       (char *)(sample->raw_data));
+		printed += fprintf(fp, "%17s \"%s\"\n", "BPF string:", (char *)(sample->raw_data));
+
+	return printed;
 }
 
-static void print_sample_spacing(int len, int spacing)
+static int perf_sample__fprintf_spacing(int len, int spacing, FILE *fp)
 {
 	if (len > 0 && len < spacing)
-		printf("%*s", spacing - len, "");
+		return fprintf(fp, "%*s", spacing - len, "");
+
+	return 0;
 }
 
-static void print_sample_pt_spacing(int len)
+static int perf_sample__fprintf_pt_spacing(int len, FILE *fp)
 {
-	print_sample_spacing(len, 34);
+	return perf_sample__fprintf_spacing(len, 34, fp);
 }
 
-static void print_sample_synth_ptwrite(struct perf_sample *sample)
+static int perf_sample__fprintf_synth_ptwrite(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_ptwrite *data = perf_sample__synth_ptr(sample);
 	int len;
 
 	if (perf_sample__bad_synth_size(sample, *data))
-		return;
+		return 0;
 
-	len = printf(" IP: %u payload: %#" PRIx64 " ",
+	len = fprintf(fp, " IP: %u payload: %#" PRIx64 " ",
 		     data->ip, le64_to_cpu(data->payload));
-	print_sample_pt_spacing(len);
+	return len + perf_sample__fprintf_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_mwait(struct perf_sample *sample)
+static int perf_sample__fprintf_synth_mwait(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_mwait *data = perf_sample__synth_ptr(sample);
 	int len;
 
 	if (perf_sample__bad_synth_size(sample, *data))
-		return;
+		return 0;
 
-	len = printf(" hints: %#x extensions: %#x ",
-		     data->hints, data->extensions);
-	print_sample_pt_spacing(len);
+	len = fprintf(fp, " hints: %#x extensions: %#x ",
+		      data->hints, data->extensions);
+	return len + perf_sample__fprintf_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_pwre(struct perf_sample *sample)
+static int perf_sample__fprintf_synth_pwre(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_pwre *data = perf_sample__synth_ptr(sample);
 	int len;
 
 	if (perf_sample__bad_synth_size(sample, *data))
-		return;
+		return 0;
 
-	len = printf(" hw: %u cstate: %u sub-cstate: %u ",
-		     data->hw, data->cstate, data->subcstate);
-	print_sample_pt_spacing(len);
+	len = fprintf(fp, " hw: %u cstate: %u sub-cstate: %u ",
+		      data->hw, data->cstate, data->subcstate);
+	return len + perf_sample__fprintf_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_exstop(struct perf_sample *sample)
+static int perf_sample__fprintf_synth_exstop(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_exstop *data = perf_sample__synth_ptr(sample);
 	int len;
 
 	if (perf_sample__bad_synth_size(sample, *data))
-		return;
+		return 0;
 
-	len = printf(" IP: %u ", data->ip);
-	print_sample_pt_spacing(len);
+	len = fprintf(fp, " IP: %u ", data->ip);
+	return len + perf_sample__fprintf_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_pwrx(struct perf_sample *sample)
+static int perf_sample__fprintf_synth_pwrx(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_pwrx *data = perf_sample__synth_ptr(sample);
 	int len;
 
 	if (perf_sample__bad_synth_size(sample, *data))
-		return;
+		return 0;
 
-	len = printf(" deepest cstate: %u last cstate: %u wake reason: %#x ",
+	len = fprintf(fp, " deepest cstate: %u last cstate: %u wake reason: %#x ",
 		     data->deepest_cstate, data->last_cstate,
 		     data->wake_reason);
-	print_sample_pt_spacing(len);
+	return len + perf_sample__fprintf_pt_spacing(len, fp);
 }
 
-static void print_sample_synth_cbr(struct perf_sample *sample)
+static int perf_sample__fprintf_synth_cbr(struct perf_sample *sample, FILE *fp)
 {
 	struct perf_synth_intel_cbr *data = perf_sample__synth_ptr(sample);
 	unsigned int percent, freq;
 	int len;
 
 	if (perf_sample__bad_synth_size(sample, *data))
-		return;
+		return 0;
 
 	freq = (le32_to_cpu(data->freq) + 500) / 1000;
-	len = printf(" cbr: %2u freq: %4u MHz ", data->cbr, freq);
+	len = fprintf(fp, " cbr: %2u freq: %4u MHz ", data->cbr, freq);
 	if (data->max_nonturbo) {
 		percent = (5 + (1000 * data->cbr) / data->max_nonturbo) / 10;
-		len += printf("(%3u%%) ", percent);
+		len += fprintf(fp, "(%3u%%) ", percent);
 	}
-	print_sample_pt_spacing(len);
+	return len + perf_sample__fprintf_pt_spacing(len, fp);
 }
 
-static void print_sample_synth(struct perf_sample *sample,
-			       struct perf_evsel *evsel)
+static int perf_sample__fprintf_synth(struct perf_sample *sample,
+				      struct perf_evsel *evsel, FILE *fp)
 {
 	switch (evsel->attr.config) {
 	case PERF_SYNTH_INTEL_PTWRITE:
-		print_sample_synth_ptwrite(sample);
-		break;
+		return perf_sample__fprintf_synth_ptwrite(sample, fp);
 	case PERF_SYNTH_INTEL_MWAIT:
-		print_sample_synth_mwait(sample);
-		break;
+		return perf_sample__fprintf_synth_mwait(sample, fp);
 	case PERF_SYNTH_INTEL_PWRE:
-		print_sample_synth_pwre(sample);
-		break;
+		return perf_sample__fprintf_synth_pwre(sample, fp);
 	case PERF_SYNTH_INTEL_EXSTOP:
-		print_sample_synth_exstop(sample);
-		break;
+		return perf_sample__fprintf_synth_exstop(sample, fp);
 	case PERF_SYNTH_INTEL_PWRX:
-		print_sample_synth_pwrx(sample);
-		break;
+		return perf_sample__fprintf_synth_pwrx(sample, fp);
 	case PERF_SYNTH_INTEL_CBR:
-		print_sample_synth_cbr(sample);
-		break;
+		return perf_sample__fprintf_synth_cbr(sample, fp);
 	default:
 		break;
 	}
+
+	return 0;
 }
 
 struct perf_script {
@@ -1340,6 +1438,7 @@ struct perf_script {
 	bool			show_switch_events;
 	bool			show_namespace_events;
 	bool			allocated;
+	bool			per_event_dump;
 	struct cpu_map		*cpus;
 	struct thread_map	*threads;
 	int			name_width;
@@ -1361,7 +1460,7 @@ static int perf_evlist__max_name_len(struct perf_evlist *evlist)
 	return max;
 }
 
-static size_t data_src__printf(u64 data_src)
+static int data_src__fprintf(u64 data_src, FILE *fp)
 {
 	struct mem_info mi = { .data_src.val = data_src };
 	char decode[100];
@@ -1375,7 +1474,7 @@ static size_t data_src__printf(u64 data_src)
 	if (maxlen < len)
 		maxlen = len;
 
-	return printf("%-*s", maxlen, out);
+	return fprintf(fp, "%-*s", maxlen, out);
 }
 
 static void process_event(struct perf_script *script,
@@ -1386,14 +1485,18 @@ static void process_event(struct perf_script *script,
 	struct thread *thread = al->thread;
 	struct perf_event_attr *attr = &evsel->attr;
 	unsigned int type = output_type(attr->type);
+	struct perf_evsel_script *es = evsel->priv;
+	FILE *fp = es->fp;
 
 	if (output[type].fields == 0)
 		return;
 
-	print_sample_start(sample, thread, evsel);
+	++es->samples;
+
+	perf_sample__fprintf_start(sample, thread, evsel, fp);
 
 	if (PRINT_FIELD(PERIOD))
-		printf("%10" PRIu64 " ", sample->period);
+		fprintf(fp, "%10" PRIu64 " ", sample->period);
 
 	if (PRINT_FIELD(EVNAME)) {
 		const char *evname = perf_evsel__name(evsel);
@@ -1401,33 +1504,33 @@ static void process_event(struct perf_script *script,
 		if (!script->name_width)
 			script->name_width = perf_evlist__max_name_len(script->session->evlist);
 
-		printf("%*s: ", script->name_width,
-		       evname ? evname : "[unknown]");
+		fprintf(fp, "%*s: ", script->name_width, evname ?: "[unknown]");
 	}
 
 	if (print_flags)
-		print_sample_flags(sample->flags);
+		perf_sample__fprintf_flags(sample->flags, fp);
 
 	if (is_bts_event(attr)) {
-		print_sample_bts(sample, evsel, thread, al, machine);
+		perf_sample__fprintf_bts(sample, evsel, thread, al, machine, fp);
 		return;
 	}
 
-	if (PRINT_FIELD(TRACE))
-		event_format__print(evsel->tp_format, sample->cpu,
-				    sample->raw_data, sample->raw_size);
+	if (PRINT_FIELD(TRACE)) {
+		event_format__fprintf(evsel->tp_format, sample->cpu,
+				      sample->raw_data, sample->raw_size, fp);
+	}
 
 	if (attr->type == PERF_TYPE_SYNTH && PRINT_FIELD(SYNTH))
-		print_sample_synth(sample, evsel);
+		perf_sample__fprintf_synth(sample, evsel, fp);
 
 	if (PRINT_FIELD(ADDR))
-		print_sample_addr(sample, thread, attr);
+		perf_sample__fprintf_addr(sample, thread, attr, fp);
 
 	if (PRINT_FIELD(DATA_SRC))
-		data_src__printf(sample->data_src);
+		data_src__fprintf(sample->data_src, fp);
 
 	if (PRINT_FIELD(WEIGHT))
-		printf("%16" PRIu64, sample->weight);
+		fprintf(fp, "%16" PRIu64, sample->weight);
 
 	if (PRINT_FIELD(IP)) {
 		struct callchain_cursor *cursor = NULL;
@@ -1437,27 +1540,30 @@ static void process_event(struct perf_script *script,
 					      sample, NULL, NULL, scripting_max_stack) == 0)
 			cursor = &callchain_cursor;
 
-		putchar(cursor ? '\n' : ' ');
-		sample__fprintf_sym(sample, al, 0, output[type].print_ip_opts, cursor, stdout);
+		fputc(cursor ? '\n' : ' ', fp);
+		sample__fprintf_sym(sample, al, 0, output[type].print_ip_opts, cursor, fp);
 	}
 
 	if (PRINT_FIELD(IREGS))
-		print_sample_iregs(sample, attr);
+		perf_sample__fprintf_iregs(sample, attr, fp);
+
+	if (PRINT_FIELD(UREGS))
+		perf_sample__fprintf_uregs(sample, attr, fp);
 
 	if (PRINT_FIELD(BRSTACK))
-		print_sample_brstack(sample, thread, attr);
+		perf_sample__fprintf_brstack(sample, thread, attr, fp);
 	else if (PRINT_FIELD(BRSTACKSYM))
-		print_sample_brstacksym(sample, thread, attr);
+		perf_sample__fprintf_brstacksym(sample, thread, attr, fp);
 	else if (PRINT_FIELD(BRSTACKOFF))
-		print_sample_brstackoff(sample, thread, attr);
+		perf_sample__fprintf_brstackoff(sample, thread, attr, fp);
 
 	if (perf_evsel__is_bpf_output(evsel) && PRINT_FIELD(BPF_OUTPUT))
-		print_sample_bpf_output(sample);
-	print_insn(sample, attr, thread, machine);
+		perf_sample__fprintf_bpf_output(sample, fp);
+	perf_sample__fprintf_insn(sample, attr, thread, machine, fp);
 
 	if (PRINT_FIELD(PHYS_ADDR))
-		printf("%16" PRIx64, sample->phys_addr);
-	printf("\n");
+		fprintf(fp, "%16" PRIx64, sample->phys_addr);
+	fprintf(fp, "\n");
 }
 
 static struct scripting_ops	*scripting_ops;
@@ -1631,7 +1737,7 @@ static int process_comm_event(struct perf_tool *tool,
 		sample->tid = event->comm.tid;
 		sample->pid = event->comm.pid;
 	}
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 	ret = 0;
 out:
@@ -1666,7 +1772,7 @@ static int process_namespaces_event(struct perf_tool *tool,
 		sample->tid = event->namespaces.tid;
 		sample->pid = event->namespaces.pid;
 	}
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 	ret = 0;
 out:
@@ -1699,7 +1805,7 @@ static int process_fork_event(struct perf_tool *tool,
 		sample->tid = event->fork.tid;
 		sample->pid = event->fork.pid;
 	}
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 	thread__put(thread);
 
@@ -1728,7 +1834,7 @@ static int process_exit_event(struct perf_tool *tool,
 		sample->tid = event->fork.tid;
 		sample->pid = event->fork.pid;
 	}
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 
 	if (perf_event__process_exit(tool, event, sample, machine) < 0)
@@ -1763,7 +1869,7 @@ static int process_mmap_event(struct perf_tool *tool,
 		sample->tid = event->mmap.tid;
 		sample->pid = event->mmap.pid;
 	}
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 	thread__put(thread);
 	return 0;
@@ -1794,7 +1900,7 @@ static int process_mmap2_event(struct perf_tool *tool,
 		sample->tid = event->mmap2.tid;
 		sample->pid = event->mmap2.pid;
 	}
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 	thread__put(thread);
 	return 0;
@@ -1820,7 +1926,7 @@ static int process_switch_event(struct perf_tool *tool,
 		return -1;
 	}
 
-	print_sample_start(sample, thread, evsel);
+	perf_sample__fprintf_start(sample, thread, evsel, stdout);
 	perf_event__fprintf(event, stdout);
 	thread__put(thread);
 	return 0;
@@ -1831,6 +1937,65 @@ static void sig_handler(int sig __maybe_unused)
 	session_done = 1;
 }
 
+static void perf_script__fclose_per_event_dump(struct perf_script *script)
+{
+	struct perf_evlist *evlist = script->session->evlist;
+	struct perf_evsel *evsel;
+
+	evlist__for_each_entry(evlist, evsel) {
+		if (!evsel->priv)
+			break;
+		perf_evsel_script__delete(evsel->priv);
+		evsel->priv = NULL;
+	}
+}
+
+static int perf_script__fopen_per_event_dump(struct perf_script *script)
+{
+	struct perf_evsel *evsel;
+
+	evlist__for_each_entry(script->session->evlist, evsel) {
+		evsel->priv = perf_evsel_script__new(evsel, script->session->data);
+		if (evsel->priv == NULL)
+			goto out_err_fclose;
+	}
+
+	return 0;
+
+out_err_fclose:
+	perf_script__fclose_per_event_dump(script);
+	return -1;
+}
+
+static int perf_script__setup_per_event_dump(struct perf_script *script)
+{
+	struct perf_evsel *evsel;
+	static struct perf_evsel_script es_stdout;
+
+	if (script->per_event_dump)
+		return perf_script__fopen_per_event_dump(script);
+
+	es_stdout.fp = stdout;
+
+	evlist__for_each_entry(script->session->evlist, evsel)
+		evsel->priv = &es_stdout;
+
+	return 0;
+}
+
+static void perf_script__exit_per_event_dump_stats(struct perf_script *script)
+{
+	struct perf_evsel *evsel;
+
+	evlist__for_each_entry(script->session->evlist, evsel) {
+		struct perf_evsel_script *es = evsel->priv;
+
+		perf_evsel_script__fprintf(es, stdout);
+		perf_evsel_script__delete(es);
+		evsel->priv = NULL;
+	}
+}
+
 static int __cmd_script(struct perf_script *script)
 {
 	int ret;
@@ -1852,8 +2017,16 @@ static int __cmd_script(struct perf_script *script)
 	if (script->show_namespace_events)
 		script->tool.namespaces = process_namespaces_event;
 
+	if (perf_script__setup_per_event_dump(script)) {
+		pr_err("Couldn't create the per event dump files\n");
+		return -1;
+	}
+
 	ret = perf_session__process_events(script->session);
 
+	if (script->per_event_dump)
+		perf_script__exit_per_event_dump_stats(script);
+
 	if (debug_mode)
 		pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
 
@@ -2418,14 +2591,16 @@ int find_scripts(char **scripts_array, char **scripts_path_array)
 	char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
 	DIR *scripts_dir, *lang_dir;
 	struct perf_session *session;
-	struct perf_data_file file = {
-		.path = input_name,
-		.mode = PERF_DATA_MODE_READ,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
 	};
 	char *temp;
 	int i = 0;
 
-	session = perf_session__new(&file, false, NULL);
+	session = perf_session__new(&data, false, NULL);
 	if (!session)
 		return -1;
 
@@ -2703,7 +2878,7 @@ int cmd_script(int argc, const char **argv)
 			.ordering_requires_timestamps = true,
 		},
 	};
-	struct perf_data_file file = {
+	struct perf_data data = {
 		.mode = PERF_DATA_MODE_READ,
 	};
 	const struct option options[] = {
@@ -2739,7 +2914,7 @@ int cmd_script(int argc, const char **argv)
 		     "+field to add and -field to remove."
 		     "Valid types: hw,sw,trace,raw,synth. "
 		     "Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,"
-		     "addr,symoff,period,iregs,brstack,brstacksym,flags,"
+		     "addr,symoff,period,iregs,uregs,brstack,brstacksym,flags,"
 		     "bpf-output,callindent,insn,insnlen,brstackinsn,synth,phys_addr",
 		     parse_output_fields),
 	OPT_BOOLEAN('a', "all-cpus", &system_wide,
@@ -2771,6 +2946,8 @@ int cmd_script(int argc, const char **argv)
 		    "Show context switch events (if recorded)"),
 	OPT_BOOLEAN('\0', "show-namespace-events", &script.show_namespace_events,
 		    "Show namespace events (if recorded)"),
+	OPT_BOOLEAN('\0', "per-event-dump", &script.per_event_dump,
+		    "Dump trace output to files named by the monitored events"),
 	OPT_BOOLEAN('f', "force", &symbol_conf.force, "don't complain, do it"),
 	OPT_INTEGER(0, "max-blocks", &max_blocks,
 		    "Maximum number of code blocks to dump with brstackinsn"),
@@ -2801,13 +2978,15 @@ int cmd_script(int argc, const char **argv)
 		NULL
 	};
 
+	perf_set_singlethreaded();
+
 	setup_scripting();
 
 	argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
 
-	file.path = input_name;
-	file.force = symbol_conf.force;
+	data.file.path = input_name;
+	data.force     = symbol_conf.force;
 
 	if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
 		rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
@@ -2974,7 +3153,7 @@ int cmd_script(int argc, const char **argv)
 	if (!script_name)
 		setup_pager();
 
-	session = perf_session__new(&file, false, &script.tool);
+	session = perf_session__new(&data, false, &script.tool);
 	if (session == NULL)
 		return -1;
 
@@ -3015,7 +3194,8 @@ int cmd_script(int argc, const char **argv)
 					 machine__resolve_kernel_addr,
 					 &session->machines.host) < 0) {
 		pr_err("%s: failed to set libtraceevent function resolver\n", __func__);
-		return -1;
+		err = -1;
+		goto out_delete;
 	}
 
 	if (generate_script_lang) {
@@ -3029,7 +3209,7 @@ int cmd_script(int argc, const char **argv)
 			goto out_delete;
 		}
 
-		input = open(file.path, O_RDONLY);	/* input_name */
+		input = open(data.file.path, O_RDONLY);	/* input_name */
 		if (input < 0) {
 			err = -errno;
 			perror("failed to open file");
@@ -3075,7 +3255,8 @@ int cmd_script(int argc, const char **argv)
 	/* needs to be parsed after looking up reference time */
 	if (perf_time__parse_str(&script.ptime, script.time_str) != 0) {
 		pr_err("Invalid time string\n");
-		return -EINVAL;
+		err = -EINVAL;
+		goto out_delete;
 	}
 
 	err = __cmd_script(&script);
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 85e992d9215b..59af5a8419e2 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -65,6 +65,7 @@
 #include "util/tool.h"
 #include "util/group.h"
 #include "util/string2.h"
+#include "util/metricgroup.h"
 #include "asm/bug.h"
 
 #include <linux/time64.h>
@@ -133,6 +134,8 @@ static const char *smi_cost_attrs = {
 
 static struct perf_evlist	*evsel_list;
 
+static struct rblist		 metric_events;
+
 static struct target target = {
 	.uid	= UINT_MAX,
 };
@@ -172,7 +175,7 @@ static int			print_free_counters_hint;
 
 struct perf_stat {
 	bool			 record;
-	struct perf_data_file	 file;
+	struct perf_data	 data;
 	struct perf_session	*session;
 	u64			 bytes_written;
 	struct perf_tool	 tool;
@@ -192,6 +195,11 @@ static struct perf_stat_config stat_config = {
 	.scale		= true,
 };
 
+static bool is_duration_time(struct perf_evsel *evsel)
+{
+	return !strcmp(evsel->name, "duration_time");
+}
+
 static inline void diff_timespec(struct timespec *r, struct timespec *a,
 				 struct timespec *b)
 {
@@ -245,7 +253,7 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
 	 * by attr->sample_type != 0, and we can't run it on
 	 * stat sessions.
 	 */
-	if (!(STAT_RECORD && perf_stat.file.is_pipe))
+	if (!(STAT_RECORD && perf_stat.data.is_pipe))
 		attr->sample_type = PERF_SAMPLE_IDENTIFIER;
 
 	/*
@@ -287,7 +295,7 @@ static int process_synthesized_event(struct perf_tool *tool __maybe_unused,
 				     struct perf_sample *sample __maybe_unused,
 				     struct machine *machine __maybe_unused)
 {
-	if (perf_data_file__write(&perf_stat.file, event, event->header.size) < 0) {
+	if (perf_data__write(&perf_stat.data, event, event->header.size) < 0) {
 		pr_err("failed to write perf data, error: %m\n");
 		return -1;
 	}
@@ -407,6 +415,8 @@ static void process_interval(void)
 			pr_err("failed to write stat round event\n");
 	}
 
+	init_stats(&walltime_nsecs_stats);
+	update_stats(&walltime_nsecs_stats, stat_config.interval * 1000000);
 	print_counters(&rs, 0, NULL);
 }
 
@@ -582,6 +592,32 @@ static bool perf_evsel__should_store_id(struct perf_evsel *counter)
 	return STAT_RECORD || counter->attr.read_format & PERF_FORMAT_ID;
 }
 
+static struct perf_evsel *perf_evsel__reset_weak_group(struct perf_evsel *evsel)
+{
+	struct perf_evsel *c2, *leader;
+	bool is_open = true;
+
+	leader = evsel->leader;
+	pr_debug("Weak group for %s/%d failed\n",
+			leader->name, leader->nr_members);
+
+	/*
+	 * for_each_group_member doesn't work here because it doesn't
+	 * include the first entry.
+	 */
+	evlist__for_each_entry(evsel_list, c2) {
+		if (c2 == evsel)
+			is_open = false;
+		if (c2->leader == leader) {
+			if (is_open)
+				perf_evsel__close(c2);
+			c2->leader = c2;
+			c2->nr_members = 0;
+		}
+	}
+	return leader;
+}
+
 static int __run_perf_stat(int argc, const char **argv)
 {
 	int interval = stat_config.interval;
@@ -592,7 +628,7 @@ static int __run_perf_stat(int argc, const char **argv)
 	size_t l;
 	int status = 0;
 	const bool forks = (argc > 0);
-	bool is_pipe = STAT_RECORD ? perf_stat.file.is_pipe : false;
+	bool is_pipe = STAT_RECORD ? perf_stat.data.is_pipe : false;
 	struct perf_evsel_config_term *err_term;
 
 	if (interval) {
@@ -618,6 +654,15 @@ static int __run_perf_stat(int argc, const char **argv)
 	evlist__for_each_entry(evsel_list, counter) {
 try_again:
 		if (create_perf_stat_counter(counter) < 0) {
+
+			/* Weak group failed. Reset the group. */
+			if ((errno == EINVAL || errno == EBADF) &&
+			    counter->leader != counter &&
+			    counter->weak_group) {
+				counter = perf_evsel__reset_weak_group(counter);
+				goto try_again;
+			}
+
 			/*
 			 * PPC returns ENXIO for HW counters until 2.6.37
 			 * (behavior changed with commit b0a873e).
@@ -674,10 +719,10 @@ try_again:
 	}
 
 	if (STAT_RECORD) {
-		int err, fd = perf_data_file__fd(&perf_stat.file);
+		int err, fd = perf_data__fd(&perf_stat.data);
 
 		if (is_pipe) {
-			err = perf_header__write_pipe(perf_data_file__fd(&perf_stat.file));
+			err = perf_header__write_pipe(perf_data__fd(&perf_stat.data));
 		} else {
 			err = perf_session__write_header(perf_stat.session, evsel_list,
 							 fd, false);
@@ -707,7 +752,7 @@ try_again:
 				process_interval();
 			}
 		}
-		wait(&status);
+		waitpid(child_pid, &status, 0);
 
 		if (workload_exec_errno) {
 			const char *emsg = str_error_r(workload_exec_errno, msg, sizeof(msg));
@@ -800,7 +845,7 @@ static void print_noise(struct perf_evsel *evsel, double avg)
 	if (run_count == 1)
 		return;
 
-	ps = evsel->priv;
+	ps = evsel->stats;
 	print_noise_pct(stddev_stats(&ps->res_stats[0]), avg);
 }
 
@@ -1199,7 +1244,7 @@ static void printout(int id, int nr, struct perf_evsel *counter, double uval,
 
 	perf_stat__print_shadow_stats(counter, uval,
 				first_shadow_cpu(counter, id),
-				&out);
+				&out, &metric_events);
 	if (!csv_output && !metric_only) {
 		print_noise(counter, noise);
 		print_running(run, ena);
@@ -1222,8 +1267,7 @@ static void aggr_update_shadow(void)
 					continue;
 				val += perf_counts(counter->counts, cpu, 0)->val;
 			}
-			val = val * counter->scale;
-			perf_stat__update_shadow_stats(counter, &val,
+			perf_stat__update_shadow_stats(counter, val,
 						       first_shadow_cpu(counter, id));
 		}
 	}
@@ -1325,6 +1369,9 @@ static void print_aggr(char *prefix)
 		ad.id = id = aggr_map->map[s];
 		first = true;
 		evlist__for_each_entry(evsel_list, counter) {
+			if (is_duration_time(counter))
+				continue;
+
 			ad.val = ad.ena = ad.run = 0;
 			ad.nr = 0;
 			if (!collect_data(counter, aggr_cb, &ad))
@@ -1384,7 +1431,7 @@ static void counter_aggr_cb(struct perf_evsel *counter, void *data,
 			    bool first __maybe_unused)
 {
 	struct caggr_data *cd = data;
-	struct perf_stat_evsel *ps = counter->priv;
+	struct perf_stat_evsel *ps = counter->stats;
 
 	cd->avg += avg_stats(&ps->res_stats[0]);
 	cd->avg_enabled += avg_stats(&ps->res_stats[1]);
@@ -1468,6 +1515,8 @@ static void print_no_aggr_metric(char *prefix)
 		if (prefix)
 			fputs(prefix, stat_config.output);
 		evlist__for_each_entry(evsel_list, counter) {
+			if (is_duration_time(counter))
+				continue;
 			if (first) {
 				aggr_printout(counter, cpu, 0);
 				first = false;
@@ -1522,6 +1571,8 @@ static void print_metric_headers(const char *prefix, bool no_indent)
 
 	/* Print metrics headers only */
 	evlist__for_each_entry(evsel_list, counter) {
+		if (is_duration_time(counter))
+			continue;
 		os.evsel = counter;
 		out.ctx = &os;
 		out.print_metric = print_metric_header;
@@ -1530,7 +1581,8 @@ static void print_metric_headers(const char *prefix, bool no_indent)
 		os.evsel = counter;
 		perf_stat__print_shadow_stats(counter, 0,
 					      0,
-					      &out);
+					      &out,
+					      &metric_events);
 	}
 	fputc('\n', stat_config.output);
 }
@@ -1643,7 +1695,7 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
 	char buf[64], *prefix = NULL;
 
 	/* Do not print anything if we record to the pipe. */
-	if (STAT_RECORD && perf_stat.file.is_pipe)
+	if (STAT_RECORD && perf_stat.data.is_pipe)
 		return;
 
 	if (interval)
@@ -1668,12 +1720,18 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
 		print_aggr(prefix);
 		break;
 	case AGGR_THREAD:
-		evlist__for_each_entry(evsel_list, counter)
+		evlist__for_each_entry(evsel_list, counter) {
+			if (is_duration_time(counter))
+				continue;
 			print_aggr_thread(counter, prefix);
+		}
 		break;
 	case AGGR_GLOBAL:
-		evlist__for_each_entry(evsel_list, counter)
+		evlist__for_each_entry(evsel_list, counter) {
+			if (is_duration_time(counter))
+				continue;
 			print_counter_aggr(counter, prefix);
+		}
 		if (metric_only)
 			fputc('\n', stat_config.output);
 		break;
@@ -1681,8 +1739,11 @@ static void print_counters(struct timespec *ts, int argc, const char **argv)
 		if (metric_only)
 			print_no_aggr_metric(prefix);
 		else {
-			evlist__for_each_entry(evsel_list, counter)
+			evlist__for_each_entry(evsel_list, counter) {
+				if (is_duration_time(counter))
+					continue;
 				print_counter(counter, prefix);
+			}
 		}
 		break;
 	case AGGR_UNSET:
@@ -1754,6 +1815,13 @@ static int enable_metric_only(const struct option *opt __maybe_unused,
 	return 0;
 }
 
+static int parse_metric_groups(const struct option *opt,
+			       const char *str,
+			       int unset __maybe_unused)
+{
+	return metricgroup__parse_groups(opt, str, &metric_events);
+}
+
 static const struct option stat_options[] = {
 	OPT_BOOLEAN('T', "transaction", &transaction_run,
 		    "hardware transaction statistics"),
@@ -1819,6 +1887,9 @@ static const struct option stat_options[] = {
 			"measure topdown level 1 statistics"),
 	OPT_BOOLEAN(0, "smi-cost", &smi_cost,
 			"measure SMI cost"),
+	OPT_CALLBACK('M', "metrics", &evsel_list, "metric/metric group list",
+		     "monitor specified metrics or metric groups (separated by ,)",
+		     parse_metric_groups),
 	OPT_END()
 };
 
@@ -2334,20 +2405,20 @@ static void init_features(struct perf_session *session)
 static int __cmd_record(int argc, const char **argv)
 {
 	struct perf_session *session;
-	struct perf_data_file *file = &perf_stat.file;
+	struct perf_data *data = &perf_stat.data;
 
 	argc = parse_options(argc, argv, stat_options, stat_record_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
 
 	if (output_name)
-		file->path = output_name;
+		data->file.path = output_name;
 
 	if (run_count != 1 || forever) {
 		pr_err("Cannot use -r option with perf stat record.\n");
 		return -1;
 	}
 
-	session = perf_session__new(file, false, NULL);
+	session = perf_session__new(data, false, NULL);
 	if (session == NULL) {
 		pr_err("Perf session creation failed.\n");
 		return -1;
@@ -2405,7 +2476,7 @@ int process_stat_config_event(struct perf_tool *tool,
 	if (st->aggr_mode != AGGR_UNSET)
 		stat_config.aggr_mode = st->aggr_mode;
 
-	if (perf_stat.file.is_pipe)
+	if (perf_stat.data.is_pipe)
 		perf_stat_init_aggr_mode();
 	else
 		perf_stat_init_aggr_mode_file(st);
@@ -2513,10 +2584,10 @@ static int __cmd_report(int argc, const char **argv)
 			input_name = "perf.data";
 	}
 
-	perf_stat.file.path = input_name;
-	perf_stat.file.mode = PERF_DATA_MODE_READ;
+	perf_stat.data.file.path = input_name;
+	perf_stat.data.mode      = PERF_DATA_MODE_READ;
 
-	session = perf_session__new(&perf_stat.file, false, &perf_stat.tool);
+	session = perf_session__new(&perf_stat.data, false, &perf_stat.tool);
 	if (session == NULL)
 		return -1;
 
@@ -2787,7 +2858,7 @@ int cmd_stat(int argc, const char **argv)
 		 * records, but the need to suppress the kptr_restrict messages in older
 		 * tools remain  -acme
 		 */
-		int fd = perf_data_file__fd(&perf_stat.file);
+		int fd = perf_data__fd(&perf_stat.data);
 		int err = perf_event__synthesize_kernel_mmap((void *)&perf_stat,
 							     process_synthesized_event,
 							     &perf_stat.session->machines.host);
@@ -2801,7 +2872,7 @@ int cmd_stat(int argc, const char **argv)
 				pr_err("failed to write stat round event\n");
 		}
 
-		if (!perf_stat.file.is_pipe) {
+		if (!perf_stat.data.is_pipe) {
 			perf_stat.session->header.data_size += perf_stat.bytes_written;
 			perf_session__write_header(perf_stat.session, evsel_list, fd, true);
 		}
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 4e2e61695986..813698a9b8c7 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -1601,13 +1601,15 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
 		{ "syscalls:sys_exit_pselect6",		process_exit_poll },
 		{ "syscalls:sys_exit_select",		process_exit_poll },
 	};
-	struct perf_data_file file = {
-		.path = input_name,
-		.mode = PERF_DATA_MODE_READ,
-		.force = tchart->force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = tchart->force,
 	};
 
-	struct perf_session *session = perf_session__new(&file, false,
+	struct perf_session *session = perf_session__new(&data, false,
 							 &tchart->tool);
 	int ret = -EINVAL;
 
@@ -1617,7 +1619,7 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
 	symbol__init(&session->header.env);
 
 	(void)perf_header__process_sections(&session->header,
-					    perf_data_file__fd(session->file),
+					    perf_data__fd(session->data),
 					    tchart,
 					    process_header);
 
@@ -1732,8 +1734,10 @@ static int timechart__io_record(int argc, const char **argv)
 	if (rec_argv == NULL)
 		return -ENOMEM;
 
-	if (asprintf(&filter, "common_pid != %d", getpid()) < 0)
+	if (asprintf(&filter, "common_pid != %d", getpid()) < 0) {
+		free(rec_argv);
 		return -ENOMEM;
+	}
 
 	p = rec_argv;
 	for (i = 0; i < common_args_nr; i++)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index ee954bde7e3e..477a8699f0b5 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -958,8 +958,16 @@ static int __cmd_top(struct perf_top *top)
 	if (perf_session__register_idle_thread(top->session) < 0)
 		goto out_delete;
 
+	if (top->nr_threads_synthesize > 1)
+		perf_set_multithreaded();
+
 	machine__synthesize_threads(&top->session->machines.host, &opts->target,
-				    top->evlist->threads, false, opts->proc_map_timeout);
+				    top->evlist->threads, false,
+				    opts->proc_map_timeout,
+				    top->nr_threads_synthesize);
+
+	if (top->nr_threads_synthesize > 1)
+		perf_set_singlethreaded();
 
 	if (perf_hpp_list.socket) {
 		ret = perf_env__read_cpu_topology_map(&perf_env);
@@ -1112,6 +1120,7 @@ int cmd_top(int argc, const char **argv)
 		},
 		.max_stack	     = sysctl_perf_event_max_stack,
 		.sym_pcnt_filter     = 5,
+		.nr_threads_synthesize = UINT_MAX,
 	};
 	struct record_opts *opts = &top.record_opts;
 	struct target *target = &opts->target;
@@ -1221,6 +1230,8 @@ int cmd_top(int argc, const char **argv)
 	OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy,
 		    "Show entries in a hierarchy"),
 	OPT_BOOLEAN(0, "force", &symbol_conf.force, "don't complain, do it"),
+	OPT_UINTEGER(0, "num-thread-synthesize", &top.nr_threads_synthesize,
+			"number of thread to run event synthesize"),
 	OPT_END()
 	};
 	const char * const top_usage[] = {
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 771ddab94bb0..f2757d38c7d7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -578,7 +578,6 @@ static struct syscall_fmt {
 } syscall_fmts[] = {
 	{ .name	    = "access",
 	  .arg = { [1] = { .scnprintf = SCA_ACCMODE,  /* mode */ }, }, },
-	{ .name	    = "arch_prctl", .alias = "prctl", },
 	{ .name	    = "bpf",
 	  .arg = { [0] = STRARRAY(cmd, bpf_cmd), }, },
 	{ .name	    = "brk",	    .hexret = true,
@@ -634,6 +633,12 @@ static struct syscall_fmt {
 #else
 		   [2] = { .scnprintf = SCA_HEX, /* arg */ }, }, },
 #endif
+	{ .name	    = "kcmp",	    .nr_args = 5,
+	  .arg = { [0] = { .name = "pid1",	.scnprintf = SCA_PID, },
+		   [1] = { .name = "pid2",	.scnprintf = SCA_PID, },
+		   [2] = { .name = "type",	.scnprintf = SCA_KCMP_TYPE, },
+		   [3] = { .name = "idx1",	.scnprintf = SCA_KCMP_IDX, },
+		   [4] = { .name = "idx2",	.scnprintf = SCA_KCMP_IDX, }, }, },
 	{ .name	    = "keyctl",
 	  .arg = { [0] = STRARRAY(option, keyctl_options), }, },
 	{ .name	    = "kill",
@@ -703,6 +708,10 @@ static struct syscall_fmt {
 		   [3] = { .scnprintf = SCA_INT,	/* pkey */ }, }, },
 	{ .name	    = "poll", .timeout = true, },
 	{ .name	    = "ppoll", .timeout = true, },
+	{ .name	    = "prctl", .alias = "arch_prctl",
+	  .arg = { [0] = { .scnprintf = SCA_PRCTL_OPTION, /* option */ },
+		   [1] = { .scnprintf = SCA_PRCTL_ARG2, /* arg2 */ },
+		   [2] = { .scnprintf = SCA_PRCTL_ARG3, /* arg3 */ }, }, },
 	{ .name	    = "pread", .alias = "pread64", },
 	{ .name	    = "preadv", .alias = "pread", },
 	{ .name	    = "prlimit64",
@@ -985,6 +994,23 @@ size_t syscall_arg__scnprintf_fd(char *bf, size_t size, struct syscall_arg *arg)
 	return printed;
 }
 
+size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size)
+{
+        size_t printed = scnprintf(bf, size, "%d", fd);
+	struct thread *thread = machine__find_thread(trace->host, pid, pid);
+
+	if (thread) {
+		const char *path = thread__fd_path(thread, fd, trace);
+
+		if (path)
+			printed += scnprintf(bf + printed, size - printed, "<%s>", path);
+
+		thread__put(thread);
+	}
+
+        return printed;
+}
+
 static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
 					      struct syscall_arg *arg)
 {
@@ -1131,13 +1157,21 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
 
 	err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
 					    evlist->threads, trace__tool_process, false,
-					    trace->opts.proc_map_timeout);
+					    trace->opts.proc_map_timeout, 1);
 	if (err)
 		symbol__exit();
 
 	return err;
 }
 
+static void trace__symbols__exit(struct trace *trace)
+{
+	machine__exit(trace->host);
+	trace->host = NULL;
+
+	symbol__exit();
+}
+
 static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args)
 {
 	int idx;
@@ -1828,16 +1862,14 @@ out_dump:
 	goto out_put;
 }
 
-static void bpf_output__printer(enum binary_printer_ops op,
-				unsigned int val, void *extra)
+static int bpf_output__printer(enum binary_printer_ops op,
+			       unsigned int val, void *extra __maybe_unused, FILE *fp)
 {
-	FILE *output = extra;
 	unsigned char ch = (unsigned char)val;
 
 	switch (op) {
 	case BINARY_PRINT_CHAR_DATA:
-		fprintf(output, "%c", isprint(ch) ? ch : '.');
-		break;
+		return fprintf(fp, "%c", isprint(ch) ? ch : '.');
 	case BINARY_PRINT_DATA_BEGIN:
 	case BINARY_PRINT_LINE_BEGIN:
 	case BINARY_PRINT_ADDR:
@@ -1850,13 +1882,15 @@ static void bpf_output__printer(enum binary_printer_ops op,
 	default:
 		break;
 	}
+
+	return 0;
 }
 
 static void bpf_output__fprintf(struct trace *trace,
 				struct perf_sample *sample)
 {
-	print_binary(sample->raw_data, sample->raw_size, 8,
-		     bpf_output__printer, trace->output);
+	binary__fprintf(sample->raw_data, sample->raw_size, 8,
+			bpf_output__printer, NULL, trace->output);
 }
 
 static int trace__event_handler(struct trace *trace, struct perf_evsel *evsel,
@@ -2078,6 +2112,7 @@ static int trace__record(struct trace *trace, int argc, const char **argv)
 			rec_argv[j++] = "syscalls:sys_enter,syscalls:sys_exit";
 		else {
 			pr_err("Neither raw_syscalls nor syscalls events exist.\n");
+			free(rec_argv);
 			return -1;
 		}
 	}
@@ -2481,6 +2516,8 @@ out_disable:
 	}
 
 out_delete_evlist:
+	trace__symbols__exit(trace);
+
 	perf_evlist__delete(evlist);
 	trace->evlist = NULL;
 	trace->live = false;
@@ -2528,10 +2565,12 @@ static int trace__replay(struct trace *trace)
 	const struct perf_evsel_str_handler handlers[] = {
 		{ "probe:vfs_getname",	     trace__vfs_getname, },
 	};
-	struct perf_data_file file = {
-		.path  = input_name,
-		.mode  = PERF_DATA_MODE_READ,
-		.force = trace->force,
+	struct perf_data data = {
+		.file      = {
+			.path = input_name,
+		},
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = trace->force,
 	};
 	struct perf_session *session;
 	struct perf_evsel *evsel;
@@ -2554,7 +2593,7 @@ static int trace__replay(struct trace *trace)
 	/* add tid to output */
 	trace->multiple_threads = true;
 
-	session = perf_session__new(&file, false, &trace->tool);
+	session = perf_session__new(&data, false, &trace->tool);
 	if (session == NULL)
 		return -1;
 
@@ -2730,20 +2769,23 @@ DEFINE_RESORT_RB(threads, (thread__nr_events(a->thread->priv) < thread__nr_event
 
 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
 {
-	DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host);
 	size_t printed = trace__fprintf_threads_header(fp);
 	struct rb_node *nd;
+	int i;
 
-	if (threads == NULL) {
-		fprintf(fp, "%s", "Error sorting output by nr_events!\n");
-		return 0;
-	}
+	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
+		DECLARE_RESORT_RB_MACHINE_THREADS(threads, trace->host, i);
 
-	resort_rb__for_each_entry(nd, threads)
-		printed += trace__fprintf_thread(fp, threads_entry->thread, trace);
+		if (threads == NULL) {
+			fprintf(fp, "%s", "Error sorting output by nr_events!\n");
+			return 0;
+		}
 
-	resort_rb__delete(threads);
+		resort_rb__for_each_entry(nd, threads)
+			printed += trace__fprintf_thread(fp, threads_entry->thread, trace);
 
+		resort_rb__delete(threads);
+	}
 	return printed;
 }
 
diff --git a/tools/perf/builtin-version.c b/tools/perf/builtin-version.c
index d25149456a2f..37019c5d675f 100644
--- a/tools/perf/builtin-version.c
+++ b/tools/perf/builtin-version.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "builtin.h"
 #include "perf.h"
 #include <linux/compiler.h>
diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index d4d19fe3d050..05745f3ce912 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BUILTIN_H
 #define BUILTIN_H
 
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 932fda54b8a6..77406d25e521 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -1,11 +1,14 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 HEADERS='
 include/uapi/drm/drm.h
 include/uapi/drm/i915_drm.h
 include/uapi/linux/fcntl.h
+include/uapi/linux/kcmp.h
 include/uapi/linux/kvm.h
 include/uapi/linux/perf_event.h
+include/uapi/linux/prctl.h
 include/uapi/linux/sched.h
 include/uapi/linux/stat.h
 include/uapi/linux/vhost.h
@@ -57,6 +60,11 @@ check () {
 }
 
 
+# Check if we have the kernel headers (tools/perf/../../include), else
+# we're probably on a detached tarball, so no point in trying to check
+# differences.
+test -d ../../include || exit 0
+
 # simple diff check
 for i in $HEADERS; do
   check $i -B
diff --git a/tools/perf/jvmti/jvmti_agent.h b/tools/perf/jvmti/jvmti_agent.h
index c53a41f48b63..fe32d8344a82 100644
--- a/tools/perf/jvmti/jvmti_agent.h
+++ b/tools/perf/jvmti/jvmti_agent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __JVMTI_AGENT_H__
 #define __JVMTI_AGENT_H__
 
diff --git a/tools/perf/jvmti/libjvmti.c b/tools/perf/jvmti/libjvmti.c
index 6d710904c837..c62c9fc9a525 100644
--- a/tools/perf/jvmti/libjvmti.c
+++ b/tools/perf/jvmti/libjvmti.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <sys/types.h>
 #include <stdio.h>
diff --git a/tools/perf/perf-archive.sh b/tools/perf/perf-archive.sh
index e91930620269..0cfb3e2cefef 100644
--- a/tools/perf/perf-archive.sh
+++ b/tools/perf/perf-archive.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # perf archive
 # Arnaldo Carvalho de Melo <acme@redhat.com>
 
diff --git a/tools/perf/perf-completion.sh b/tools/perf/perf-completion.sh
index 3ba80b2359cc..345f5d6e9ed5 100644
--- a/tools/perf/perf-completion.sh
+++ b/tools/perf/perf-completion.sh
@@ -1,4 +1,5 @@
 # perf bash and zsh completion
+# SPDX-License-Identifier: GPL-2.0
 
 # Taken from git.git's completion script.
 __my_reassemble_comp_words_by_ref()
diff --git a/tools/perf/perf-read-vdso.c b/tools/perf/perf-read-vdso.c
index 764e2547c25a..8c0ca0cc428f 100644
--- a/tools/perf/perf-read-vdso.c
+++ b/tools/perf/perf-read-vdso.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <string.h>
 
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index c11f0c76e90c..36673f98d66b 100644
--- a/tools/perf/perf-sys.h
+++ b/tools/perf/perf-sys.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_SYS_H
 #define _PERF_SYS_H
 
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index e0279babe0c0..62b13518bc6e 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * perf.c
  *
@@ -467,15 +468,21 @@ int main(int argc, const char **argv)
 	 *  - cannot execute it externally (since it would just do
 	 *    the same thing over again)
 	 *
-	 * So we just directly call the internal command handler, and
-	 * die if that one cannot handle it.
+	 * So we just directly call the internal command handler. If that one
+	 * fails to handle this, then maybe we just run a renamed perf binary
+	 * that contains a dash in its name. To handle this scenario, we just
+	 * fall through and ignore the "xxxx" part of the command string.
 	 */
 	if (strstarts(cmd, "perf-")) {
 		cmd += 5;
 		argv[0] = cmd;
 		handle_internal_command(argc, argv);
-		fprintf(stderr, "cannot handle %s internally", cmd);
-		goto out;
+		/*
+		 * If the command is handled, the above function does not
+		 * return undo changes and fall through in such a case.
+		 */
+		cmd -= 5;
+		argv[0] = cmd;
 	}
 	if (strstarts(cmd, "trace")) {
 #ifdef HAVE_LIBAUDIT_SUPPORT
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index dc442ba21bf6..2357f4ccc9c7 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_PERF_H
 #define _PERF_PERF_H
 
@@ -65,6 +66,7 @@ struct record_opts {
 	unsigned int user_freq;
 	u64          branch_stack;
 	u64	     sample_intr_regs;
+	u64	     sample_user_regs;
 	u64	     default_interval;
 	u64	     user_interval;
 	size_t	     auxtrace_snapshot_size;
diff --git a/tools/perf/pmu-events/arch/x86/broadwell/bdw-metrics.json b/tools/perf/pmu-events/arch/x86/broadwell/bdw-metrics.json
new file mode 100644
index 000000000000..00bfdb5c5acb
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/broadwell/bdw-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , IDQ.MITE_UOPS / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 16 * ( ICACHE.HIT + ICACHE.MISSES ) / 4.0 ) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else UOPS_EXECUTED.CYCLES_GE_1_UOP_EXEC)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFDATA_STALL  - (( 14 * ITLB_MISSES.STLB_HIT + cpu@ITLB_MISSES.WALK_DURATION\\,cmask\\=1@ + 7* ITLB_MISSES.WALK_COMPLETED )) ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( cpu@ITLB_MISSES.WALK_DURATION\\,cmask\\=1@ + cpu@DTLB_LOAD_MISSES.WALK_DURATION\\,cmask\\=1@ + cpu@DTLB_STORE_MISSES.WALK_DURATION\\,cmask\\=1@ + 7*(DTLB_STORE_MISSES.WALK_COMPLETED+DTLB_LOAD_MISSES.WALK_COMPLETED+ITLB_MISSES.WALK_COMPLETED)) / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_ARITH_INST_RETIRED.SCALAR_SINGLE + FP_ARITH_INST_RETIRED.SCALAR_DOUBLE ) + 2* FP_ARITH_INST_RETIRED.128B_PACKED_DOUBLE + 4*( FP_ARITH_INST_RETIRED.128B_PACKED_SINGLE + FP_ARITH_INST_RETIRED.256B_PACKED_DOUBLE ) + 8* FP_ARITH_INST_RETIRED.256B_PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/broadwellde/bdwde-metrics.json b/tools/perf/pmu-events/arch/x86/broadwellde/bdwde-metrics.json
new file mode 100644
index 000000000000..49c5f123d811
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/broadwellde/bdwde-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , IDQ.MITE_UOPS / ( UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY * 16 * ( ICACHE.HIT + ICACHE.MISSES ) / 4.0 ) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / INST_RETIRED.ANY / cycles",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / ( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / ( cpu@uops_executed.core\\,cmask\\=1@ / 2) if #SMT_on else UOPS_EXECUTED.CYCLES_GE_1_UOP_EXEC",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+	"MetricExpr": "2* ( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFDATA_STALL  - ( 14 * ITLB_MISSES.STLB_HIT + cpu@ITLB_MISSES.WALK_DURATION\\,cmask\\=1@ + 7* ITLB_MISSES.WALK_COMPLETED ) ) / RS_EVENTS.EMPTY_END",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+	"MetricExpr": "( cpu@ITLB_MISSES.WALK_DURATION\\,cmask\\=1@ + cpu@DTLB_LOAD_MISSES.WALK_DURATION\\,cmask\\=1@ + cpu@DTLB_STORE_MISSES.WALK_DURATION\\,cmask\\=1@ + 7*(DTLB_STORE_MISSES.WALK_COMPLETED+DTLB_LOAD_MISSES.WALK_COMPLETED+ITLB_MISSES.WALK_COMPLETED)) / ( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "( 1*( FP_ARITH_INST_RETIRED.SCALAR_SINGLE + FP_ARITH_INST_RETIRED.SCALAR_DOUBLE ) + 2* FP_ARITH_INST_RETIRED.128B_PACKED_DOUBLE + 4*( FP_ARITH_INST_RETIRED.128B_PACKED_SINGLE + FP_ARITH_INST_RETIRED.256B_PACKED_DOUBLE ) + 8* FP_ARITH_INST_RETIRED.256B_PACKED_SINGLE ) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/broadwellx/bdx-metrics.json b/tools/perf/pmu-events/arch/x86/broadwellx/bdx-metrics.json
new file mode 100644
index 000000000000..5a7f1ec24200
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/broadwellx/bdx-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , IDQ.MITE_UOPS / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 16 * ( ICACHE.HIT + ICACHE.MISSES ) / 4.0 ) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else UOPS_EXECUTED.CYCLES_GE_1_UOP_EXEC)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFDATA_STALL  - (( 14 * ITLB_MISSES.STLB_HIT + cpu@ITLB_MISSES.WALK_DURATION\\,cmask\\=1@ + 7* ITLB_MISSES.WALK_COMPLETED )) ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_DURATION + DTLB_LOAD_MISSES.WALK_DURATION + DTLB_STORE_MISSES.WALK_DURATION + 7*(DTLB_STORE_MISSES.WALK_COMPLETED+DTLB_LOAD_MISSES.WALK_COMPLETED+ITLB_MISSES.WALK_COMPLETED) ) / (2*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles))",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_ARITH_INST_RETIRED.SCALAR_SINGLE + FP_ARITH_INST_RETIRED.SCALAR_DOUBLE ) + 2* FP_ARITH_INST_RETIRED.128B_PACKED_DOUBLE + 4*( FP_ARITH_INST_RETIRED.128B_PACKED_SINGLE + FP_ARITH_INST_RETIRED.256B_PACKED_DOUBLE ) + 8* FP_ARITH_INST_RETIRED.256B_PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/goldmontplus/cache.json b/tools/perf/pmu-events/arch/x86/goldmontplus/cache.json
new file mode 100644
index 000000000000..b4791b443a66
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/goldmontplus/cache.json
@@ -0,0 +1,1453 @@
+[
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts memory requests originating from the core that miss in the L2 cache.",
+        "EventCode": "0x2E",
+        "Counter": "0,1,2,3",
+        "UMask": "0x41",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LONGEST_LAT_CACHE.MISS",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "L2 cache request misses"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts memory requests originating from the core that reference a cache line in the L2 cache.",
+        "EventCode": "0x2E",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4f",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LONGEST_LAT_CACHE.REFERENCE",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "L2 cache requests"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of demand and prefetch transactions that the L2 XQ rejects due to a full or near full condition which likely indicates back pressure from the intra-die interconnect (IDI) fabric. The XQ may reject transactions from the L2Q (non-cacheable requests), L2 misses and L2 write-back victims.",
+        "EventCode": "0x30",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "L2_REJECT_XQ.ALL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Requests rejected by the XQ"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of demand and L1 prefetcher requests rejected by the L2Q due to a full or nearly full condition which likely indicates back pressure from L2Q. It also counts requests that would have gone directly to the XQ, but are rejected due to a full or nearly full condition, indicating back pressure from the IDI link. The L2Q may also reject transactions from a core to insure fairness between cores, or to delay a core's dirty eviction when the address conflicts with incoming external snoops.",
+        "EventCode": "0x31",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "CORE_REJECT_L2Q.ALL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Requests rejected by the L2Q"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts when a modified (dirty) cache line is evicted from the data L1 cache and needs to be written back to memory.  No count will occur if the evicted line is clean, and hence does not require a writeback.",
+        "EventCode": "0x51",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DL1.REPLACEMENT",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "L1 Cache evictions for dirty data"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts cycles that fetch is stalled due to an outstanding ICache miss. That is, the decoder queue is able to accept bytes, but the fetch unit is unable to provide bytes due to an ICache miss.  Note: this event is not the same as the total number of cycles spent retrieving instruction cache lines from the memory hierarchy.",
+        "EventCode": "0x86",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "FETCH_STALL.ICACHE_FILL_PENDING_CYCLES",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles code-fetch stalled due to an outstanding ICache miss."
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "EventCode": "0xB7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts locked memory uops retired.  This includes regular locks and bus locks. (To specifically count bus locks only, see the Offcore response event.)  A locked access is one with a lock prefix, or an exchange to memory.  See the SDM for a complete description of which memory load accesses are locks.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x21",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.LOCK_LOADS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Locked load uops retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired where the data requested spans a 64 byte cache line boundary.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x41",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.SPLIT_LOADS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired that split a cache-line (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts store uops retired where the data requested spans a 64 byte cache line boundary.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x42",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.SPLIT_STORES",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Stores uops retired that split a cache-line (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts memory uops retired where the data requested spans a 64 byte cache line boundary.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x43",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.SPLIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Memory uops retired that split a cache-line (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts the number of load uops retired.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x81",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.ALL_LOADS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts the number of store uops retired.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x82",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.ALL_STORES",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Store uops retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts the number of memory uops retired that is either a loads or a store or both.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x83",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.ALL",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Memory uops retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired that hit the L1 data cache.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.L1_HIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired that hit L1 data cache (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired that hit in the L2 cache.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.L2_HIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired that hit L2 (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired that miss the L1 data cache.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.L1_MISS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired that missed L1 data cache (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired that miss in the L2 cache.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.L2_MISS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired that missed L2 (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired where the cache line containing the data was in the modified state of another core or modules cache (HITM).  More specifically, this means that when the load address was checked by other caching agents (typically another processor) in the system, one of those caching agents indicated that they had a dirty copy of the data.  Loads that obtain a HITM response incur greater latency than most is typical for a load.  In addition, since HITM indicates that some other processor had this data in its cache, it implies that the data was shared between processors, or potentially was a lock or semaphore value.  This event is useful for locating sharing, false sharing, and contended locks.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x20",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.HITM",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Memory uop retired where cross core or cross module HITM occurred (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts memory load uops retired where the data is retrieved from the WCB (or fill buffer), indicating that the load found its data while that data was in the process of being brought into the L1 cache.  Typically a load will receive this indication when some other load or prefetch missed the L1 cache and was in the process of retrieving the cache line containing the data, but that process had not yet finished (and written the data back to the cache). For example, consider load X and Y, both referencing the same cache line that is not in the L1 cache.  If load X misses cache first, it obtains and WCB (or fill buffer) and begins the process of requesting the data.  When load Y requests the data, it will either hit the WCB, or the L1 cache, depending on exactly what time the request to Y occurs.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x40",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.WCB_HIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads retired that hit WCB (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts memory load uops retired where the data is retrieved from DRAM.  Event is counted at retirement, so the speculative loads are ignored.  A memory load can hit (or miss) the L1 cache, hit (or miss) the L2 cache, hit DRAM, hit in the WCB or receive a HITM response.",
+        "EventCode": "0xD1",
+        "Counter": "0,1,2,3",
+        "UMask": "0x80",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_LOAD_UOPS_RETIRED.DRAM_HIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads retired that came from DRAM (Precise event capable)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand cacheable data reads of full cache lines have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010001",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand cacheable data reads of full cache lines have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand cacheable data reads of full cache lines hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040001",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand cacheable data reads of full cache lines hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand cacheable data reads of full cache lines true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000001",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand cacheable data reads of full cache lines true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand cacheable data reads of full cache lines miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000001",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand cacheable data reads of full cache lines miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand cacheable data reads of full cache lines outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000001",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_DATA_RD.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand cacheable data reads of full cache lines outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010002",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_RFO.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040002",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000002",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000002",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_RFO.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000002",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_RFO.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand reads for ownership (RFO) requests generated by a write to full data cache line outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010004",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040004",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000004",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000004",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000004",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.DEMAND_CODE_RD.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts demand instruction cacheline and I-side prefetch requests that miss the instruction cache outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010008",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.COREWB.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040008",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.COREWB.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000008",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.COREWB.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000008",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.COREWB.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000008",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.COREWB.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts the number of writeback transactions caused by L1 or L2 cache evictions outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_DATA_RD.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cacheline reads generated by hardware L2 cache prefetcher outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010020",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_RFO.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040020",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000020",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000020",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_RFO.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000020",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L2_RFO.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests generated by L2 prefetcher outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts bus lock and split lock requests have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010400",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.BUS_LOCKS.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts bus lock and split lock requests have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts bus lock and split lock requests hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040400",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.BUS_LOCKS.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts bus lock and split lock requests hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts bus lock and split lock requests true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000400",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.BUS_LOCKS.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts bus lock and split lock requests true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts bus lock and split lock requests miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000400",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.BUS_LOCKS.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts bus lock and split lock requests miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts bus lock and split lock requests outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000400",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.BUS_LOCKS.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts bus lock and split lock requests outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.FULL_STREAMING_STORES.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.FULL_STREAMING_STORES.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.FULL_STREAMING_STORES.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.FULL_STREAMING_STORES.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.FULL_STREAMING_STORES.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts full cache line data writes to uncacheable write combining (USWC) memory region and full cache-line non-temporal writes outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache lines requests by software prefetch instructions have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000011000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.SW_PREFETCH.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache lines requests by software prefetch instructions have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache lines requests by software prefetch instructions hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000041000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.SW_PREFETCH.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache lines requests by software prefetch instructions hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache lines requests by software prefetch instructions true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200001000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.SW_PREFETCH.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache lines requests by software prefetch instructions true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache lines requests by software prefetch instructions miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000001000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.SW_PREFETCH.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache lines requests by software prefetch instructions miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache lines requests by software prefetch instructions outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000001000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.SW_PREFETCH.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache lines requests by software prefetch instructions outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000012000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000042000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200002000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000002000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000002000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.PF_L1_DATA_RD.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data cache line reads generated by hardware L1 data cache prefetcher outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000014800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.STREAMING_STORES.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000044800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.STREAMING_STORES.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200004800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.STREAMING_STORES.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000004800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.STREAMING_STORES.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000004800",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.STREAMING_STORES.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts any data writes to uncacheable write combining (USWC) memory region  outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the uncore subsystem have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000018000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_REQUEST.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts requests to the uncore subsystem have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the uncore subsystem hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000048000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_REQUEST.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts requests to the uncore subsystem hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the uncore subsystem true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200008000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_REQUEST.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts requests to the uncore subsystem true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the uncore subsystem miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000008000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_REQUEST.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts requests to the uncore subsystem miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the uncore subsystem outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000008000",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_REQUEST.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts requests to the uncore subsystem outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads generated by L1 or L2 prefetchers have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000013010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_PF_DATA_RD.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads generated by L1 or L2 prefetchers have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads generated by L1 or L2 prefetchers hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000043010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_PF_DATA_RD.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads generated by L1 or L2 prefetchers hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads generated by L1 or L2 prefetchers true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200003010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_PF_DATA_RD.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads generated by L1 or L2 prefetchers true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads generated by L1 or L2 prefetchers miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000003010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_PF_DATA_RD.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads generated by L1 or L2 prefetchers miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads generated by L1 or L2 prefetchers outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000003010",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_PF_DATA_RD.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads generated by L1 or L2 prefetchers outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads (demand & prefetch) have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000013091",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads (demand & prefetch) have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads (demand & prefetch) hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000043091",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads (demand & prefetch) hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads (demand & prefetch) true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200003091",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads (demand & prefetch) true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads (demand & prefetch) miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000003091",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads (demand & prefetch) miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data reads (demand & prefetch) outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000003091",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_DATA_RD.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data reads (demand & prefetch) outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000010022",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_RFO.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0000040022",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x0200000022",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x1000000022",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_RFO.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x4000000022",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_RFO.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts reads for ownership (RFO) requests (demand & prefetch) outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) have any transaction responses from the uncore subsystem. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x00000132b7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_READ.ANY_RESPONSE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) have any transaction responses from the uncore subsystem.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) hit the L2 cache. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x00000432b7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_READ.L2_HIT",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) hit the L2 cache.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) true miss for the L2 cache with a snoop miss in the other processor module.  Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x02000032b7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_READ.L2_MISS.SNOOP_MISS_OR_NO_SNOOP_NEEDED",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) true miss for the L2 cache with a snoop miss in the other processor module. ",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) miss the L2 cache with a snoop hit in the other processor module, data forwarding is required. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x10000032b7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_READ.L2_MISS.HITM_OTHER_CORE",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6, 0x1a7",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) miss the L2 cache with a snoop hit in the other processor module, data forwarding is required.",
+        "Offcore": "1"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) outstanding, per cycle, from the time of the L2 miss to when any response is received. Requires MSR_OFFCORE_RESP[0,1] to specify request type and response. (duplicated for both MSRs)",
+        "EventCode": "0xB7",
+        "MSRValue": "0x40000032b7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "OFFCORE_RESPONSE.ANY_READ.OUTSTANDING",
+        "PDIR_COUNTER": "na",
+        "MSRIndex": "0x1a6",
+        "SampleAfterValue": "100007",
+        "BriefDescription": "Counts data read, code read, and read for ownership (RFO) requests (demand & prefetch) outstanding, per cycle, from the time of the L2 miss to when any response is received.",
+        "Offcore": "1"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/goldmontplus/frontend.json b/tools/perf/pmu-events/arch/x86/goldmontplus/frontend.json
new file mode 100644
index 000000000000..a7878965ceab
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/goldmontplus/frontend.json
@@ -0,0 +1,62 @@
+[
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the Instruction Cache (ICache) for one or more bytes in an ICache Line and that cache line is in the ICache (hit).  The event strives to count on a cache line basis, so that multiple accesses which hit in a single cache line count as one ICACHE.HIT.  Specifically, the event counts when straight line code crosses the cache line boundary, or when a branch target is to a new line, and that cache line is in the ICache. This event counts differently than Intel processors based on Silvermont microarchitecture.",
+        "EventCode": "0x80",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ICACHE.HIT",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "References per ICache line that are available in the ICache (hit). This event counts differently than Intel processors based on Silvermont microarchitecture"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the Instruction Cache (ICache)  for one or more bytes in an ICache Line and that cache line is not in the ICache (miss).  The event strives to count on a cache line basis, so that multiple accesses which miss in a single cache line count as one ICACHE.MISS.  Specifically, the event counts when straight line code crosses the cache line boundary, or when a branch target is to a new line, and that cache line is not in the ICache. This event counts differently than Intel processors based on Silvermont microarchitecture.",
+        "EventCode": "0x80",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ICACHE.MISSES",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "References per ICache line that are not available in the ICache (miss). This event counts differently than Intel processors based on Silvermont microarchitecture"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts requests to the Instruction Cache (ICache) for one or more bytes in an ICache Line.  The event strives to count on a cache line basis, so that multiple fetches to a single cache line count as one ICACHE.ACCESS.  Specifically, the event counts when accesses from straight line code crosses the cache line boundary, or when a branch target is to a new line.\r\nThis event counts differently than Intel processors based on Silvermont microarchitecture.",
+        "EventCode": "0x80",
+        "Counter": "0,1,2,3",
+        "UMask": "0x3",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ICACHE.ACCESSES",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "References per ICache line. This event counts differently than Intel processors based on Silvermont microarchitecture"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of times the Microcode Sequencer (MS) starts a flow of uops from the MSROM. It does not count every time a uop is read from the MSROM.  The most common case that this counts is when a micro-coded instruction is encountered by the front end of the machine.  Other cases include when an instruction encounters a fault, trap, or microcode assist of any sort that initiates a flow of uops.  The event will count MS startups for uops that are speculative, and subsequently cleared by branch mispredict or a machine clear.",
+        "EventCode": "0xE7",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MS_DECODED.MS_ENTRY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "MS decode starts"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of times the prediction (from the predecode cache) for instruction length is incorrect.",
+        "EventCode": "0xE9",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DECODE_RESTRICTION.PREDECODE_WRONG",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Decode restrictions due to predicting wrong instruction length"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/goldmontplus/memory.json b/tools/perf/pmu-events/arch/x86/goldmontplus/memory.json
new file mode 100644
index 000000000000..91e0815f3ffb
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/goldmontplus/memory.json
@@ -0,0 +1,38 @@
+[
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts when a memory load of a uop spans a page boundary (a split) is retired.",
+        "EventCode": "0x13",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MISALIGN_MEM_REF.LOAD_PAGE_SPLIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops that split a page (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts when a memory store of a uop spans a page boundary (a split) is retired.",
+        "EventCode": "0x13",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MISALIGN_MEM_REF.STORE_PAGE_SPLIT",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Store uops that split a page (Precise event capable)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts machine clears due to memory ordering issues.  This occurs when a snoop request happens and the machine is uncertain if memory ordering will be preserved - as another core is in the process of modifying the data.",
+        "EventCode": "0xC3",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MACHINE_CLEARS.MEMORY_ORDERING",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "Machine clears due to memory ordering issue"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/goldmontplus/other.json b/tools/perf/pmu-events/arch/x86/goldmontplus/other.json
new file mode 100644
index 000000000000..b860374418ab
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/goldmontplus/other.json
@@ -0,0 +1,98 @@
+[
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts cycles that fetch is stalled due to any reason. That is, the decoder queue is able to accept bytes, but the fetch unit is unable to provide bytes.  This will include cycles due to an ITLB miss, ICache miss and other events.",
+        "EventCode": "0x86",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "FETCH_STALL.ALL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles code-fetch stalled due to any reason."
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts cycles that fetch is stalled due to an outstanding ITLB miss. That is, the decoder queue is able to accept bytes, but the fetch unit is unable to provide bytes due to an ITLB miss.  Note: this event is not the same as page walk cycles to retrieve an instruction translation.",
+        "EventCode": "0x86",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "FETCH_STALL.ITLB_FILL_PENDING_CYCLES",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles the code-fetch stalls and an ITLB miss is outstanding."
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of issue slots per core cycle that were not consumed by the backend due to either a full resource  in the backend (RESOURCE_FULL) or due to the processor recovering from some event (RECOVERY).",
+        "EventCode": "0xCA",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ISSUE_SLOTS_NOT_CONSUMED.ANY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Unfilled issue slots per cycle"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of issue slots per core cycle that were not consumed because of a full resource in the backend.  Including but not limited to resources such as the Re-order Buffer (ROB), reservation stations (RS), load/store buffers, physical registers, or any other needed machine resource that is currently unavailable.   Note that uops must be available for consumption in order for this event to fire.  If a uop is not available (Instruction Queue is empty), this event will not count.",
+        "EventCode": "0xCA",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ISSUE_SLOTS_NOT_CONSUMED.RESOURCE_FULL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Unfilled issue slots per cycle because of a full resource in the backend"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of issue slots per core cycle that were not consumed by the backend because allocation is stalled waiting for a mispredicted jump to retire or other branch-like conditions (e.g. the event is relevant during certain microcode flows).   Counts all issue slots blocked while within this window including slots where uops were not available in the Instruction Queue.",
+        "EventCode": "0xCA",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ISSUE_SLOTS_NOT_CONSUMED.RECOVERY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Unfilled issue slots per cycle to recover"
+    },
+    {
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts hardware interrupts received by the processor.",
+        "EventCode": "0xCB",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "HW_INTERRUPTS.RECEIVED",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "203",
+        "BriefDescription": "Hardware interrupts received"
+    },
+    {
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts the number of core cycles during which interrupts are masked (disabled). Increments by 1 each core cycle that EFLAGS.IF is 0, regardless of whether interrupts are pending or not.",
+        "EventCode": "0xCB",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "HW_INTERRUPTS.MASKED",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles hardware interrupts are masked"
+    },
+    {
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts core cycles during which there are pending interrupts, but interrupts are masked (EFLAGS.IF = 0).",
+        "EventCode": "0xCB",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "HW_INTERRUPTS.PENDING_AND_MASKED",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles pending interrupts are masked"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/goldmontplus/pipeline.json b/tools/perf/pmu-events/arch/x86/goldmontplus/pipeline.json
new file mode 100644
index 000000000000..ccf1aed69197
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/goldmontplus/pipeline.json
@@ -0,0 +1,544 @@
+[
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of instructions that retire execution. For instructions that consist of multiple uops, this event counts the retirement of the last uop of the instruction. The counter continues counting during hardware interrupts, traps, and inside interrupt handlers.  This event uses fixed counter 0.  You cannot collect a PEBs record for this event.",
+        "EventCode": "0x00",
+        "Counter": "Fixed counter 0",
+        "UMask": "0x1",
+        "PEBScounters": "32",
+        "EventName": "INST_RETIRED.ANY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Instructions retired (Fixed event)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of core cycles while the core is not in a halt state.  The core enters the halt state when it is running the HLT instruction. In mobile systems the core frequency may change from time to time. For this reason this event may have a changing ratio with regards to time.  This event uses fixed counter 1.  You cannot collect a PEBs record for this event.",
+        "EventCode": "0x00",
+        "Counter": "Fixed counter 1",
+        "UMask": "0x2",
+        "PEBScounters": "33",
+        "EventName": "CPU_CLK_UNHALTED.CORE",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Core cycles when core is not halted  (Fixed event)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of reference cycles that the core is not in a halt state. The core enters the halt state when it is running the HLT instruction.  In mobile systems the core frequency may change from time.  This event is not affected by core frequency changes but counts as if the core is running at the maximum frequency all the time.  This event uses fixed counter 2.  You cannot collect a PEBs record for this event.",
+        "EventCode": "0x00",
+        "Counter": "Fixed counter 2",
+        "UMask": "0x3",
+        "PEBScounters": "34",
+        "EventName": "CPU_CLK_UNHALTED.REF_TSC",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Reference cycles when core is not halted  (Fixed event)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts a load blocked from using a store forward, but did not occur because the store data was not available at the right time.  The forward might occur subsequently when the data is available.",
+        "EventCode": "0x03",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LD_BLOCKS.DATA_UNKNOWN",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads blocked due to store data not ready (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts a load blocked from using a store forward because of an address/size mismatch, only one of the loads blocked from each store will be counted.",
+        "EventCode": "0x03",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LD_BLOCKS.STORE_FORWARD",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads blocked due to store forward restriction (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts loads that block because their address modulo 4K matches a pending store.",
+        "EventCode": "0x03",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LD_BLOCKS.4K_ALIAS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads blocked because address has 4k partial address false dependence (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts loads blocked because they are unable to find their physical address in the micro TLB (UTLB).",
+        "EventCode": "0x03",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LD_BLOCKS.UTLB_MISS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads blocked because address in not in the UTLB (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts anytime a load that retires is blocked for any reason.",
+        "EventCode": "0x03",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "LD_BLOCKS.ALL_BLOCK",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Loads blocked (Precise event capable)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts uops issued by the front end and allocated into the back end of the machine.  This event counts uops that retire as well as uops that were speculatively executed but didn't retire. The sort of speculative uops that might be counted includes, but is not limited to those uops issued in the shadow of a miss-predicted branch, those uops that are inserted during an assist (such as for a denormal floating point result), and (previously allocated) uops that might be canceled during a machine clear.",
+        "EventCode": "0x0E",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "UOPS_ISSUED.ANY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Uops issued to the back end per cycle"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Core cycles when core is not halted.  This event uses a (_P)rogrammable general purpose performance counter.",
+        "EventCode": "0x3C",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "CPU_CLK_UNHALTED.CORE_P",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Core cycles when core is not halted"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Reference cycles when core is not halted.  This event uses a (_P)rogrammable general purpose performance counter.",
+        "EventCode": "0x3C",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "CPU_CLK_UNHALTED.REF",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Reference cycles when core is not halted"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "This event used to measure front-end inefficiencies. I.e. when front-end of the machine is not delivering uops to the back-end and the back-end has is not stalled. This event can be used to identify if the machine is truly front-end bound.  When this event occurs, it is an indication that the front-end of the machine is operating at less than its theoretical peak performance. Background: We can think of the processor pipeline as being divided into 2 broader parts: Front-end and Back-end. Front-end is responsible for fetching the instruction, decoding into uops in machine understandable format and putting them into a uop queue to be consumed by back end. The back-end then takes these uops, allocates the required resources.  When all resources are ready, uops are executed. If the back-end is not ready to accept uops from the front-end, then we do not want to count these as front-end bottlenecks.  However, whenever we have bottlenecks in the back-end, we will have allocation unit stalls and eventually forcing the front-end to wait until the back-end is ready to receive more uops. This event counts only when back-end is requesting more uops and front-end is not able to provide them. When 3 uops are requested and no uops are delivered, the event counts 3. When 3 are requested, and only 1 is delivered, the event counts 2. When only 2 are delivered, the event counts 1. Alternatively stated, the event will not count if 3 uops are delivered, or if the back end is stalled and not requesting any uops at all.  Counts indicate missed opportunities for the front-end to deliver a uop to the back end. Some examples of conditions that cause front-end efficiencies are: ICache misses, ITLB misses, and decoder restrictions that limit the front-end bandwidth. Known Issues: Some uops require multiple allocation slots.  These uops will not be charged as a front end 'not delivered' opportunity, and will be regarded as a back end problem. For example, the INC instruction has one uop that requires 2 issue slots.  A stream of INC instructions will not count as UOPS_NOT_DELIVERED, even though only one instruction can be issued per clock.  The low uop issue rate for a stream of INC instructions is considered to be a back end issue.",
+        "EventCode": "0x9C",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "UOPS_NOT_DELIVERED.ANY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Uops requested but not-delivered to the back-end per cycle"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of instructions that retire execution. For instructions that consist of multiple uops, this event counts the retirement of the last uop of the instruction. The event continues counting during hardware interrupts, traps, and inside interrupt handlers.  This is an architectural performance event.  This event uses a (_P)rogrammable general purpose performance counter. *This event is Precise Event capable:  The EventingRIP field in the PEBS record is precise to the address of the instruction which caused the event.  Note: Because PEBS records can be collected only on IA32_PMC0, only one event can use the PEBS facility at a time.",
+        "EventCode": "0xC0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "INST_RETIRED.ANY_P",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Instructions retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts INST_RETIRED.ANY using the Reduced Skid PEBS feature that reduces the shadow in which events aren't counted allowing for a more unbiased distribution of samples across instructions retired.",
+        "EventCode": "0xC0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "EventName": "INST_RETIRED.PREC_DIST",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Instructions retired - using Reduced Skid PEBS feature"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts uops which retired.",
+        "EventCode": "0xC2",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "UOPS_RETIRED.ANY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Uops retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts uops retired that are from the complex flows issued by the micro-sequencer (MS).  Counts both the uops from a micro-coded instruction, and the uops that might be generated from a micro-coded assist.",
+        "EventCode": "0xC2",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "UOPS_RETIRED.MS",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "MS uops retired (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of floating point divide uops retired.",
+        "EventCode": "0xC2",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "UOPS_RETIRED.FPDIV",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Floating point divide uops retired (Precise Event Capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of integer divide uops retired.",
+        "EventCode": "0xC2",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "UOPS_RETIRED.IDIV",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Integer divide uops retired (Precise Event Capable)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts machine clears for any reason.",
+        "EventCode": "0xC3",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MACHINE_CLEARS.ALL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "All machine clears"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of times that the processor detects that a program is writing to a code section and has to perform a machine clear because of that modification.  Self-modifying code (SMC) causes a severe penalty in all Intel architecture processors.",
+        "EventCode": "0xC3",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MACHINE_CLEARS.SMC",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "Self-Modifying Code detected"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts machine clears due to floating point (FP) operations needing assists.  For instance, if the result was a floating point denormal, the hardware clears the pipeline and reissues uops to produce the correct IEEE compliant denormal result.",
+        "EventCode": "0xC3",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MACHINE_CLEARS.FP_ASSIST",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "Machine clears due to FP assists"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts machine clears due to memory disambiguation.  Memory disambiguation happens when a load which has been issued conflicts with a previous unretired store in the pipeline whose address was not known at issue time, but is later resolved to be the same as the load address.",
+        "EventCode": "0xC3",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MACHINE_CLEARS.DISAMBIGUATION",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "Machine clears due to memory disambiguation"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of times that the machines clears due to a page fault. Covers both I-side and D-side(Loads/Stores) page faults. A page fault occurs when either page is not present, or an access violation",
+        "EventCode": "0xC3",
+        "Counter": "0,1,2,3",
+        "UMask": "0x20",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MACHINE_CLEARS.PAGE_FAULT",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "Machines clear due to a page fault"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts branch instructions retired for all branch types.  This is an architectural performance event.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.ALL_BRANCHES",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired branch instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts retired Jcc (Jump on Conditional Code/Jump if Condition is Met) branch instructions retired, including both when the branch was taken and when it was not taken.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0x7e",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.JCC",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired conditional branch instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts the number of taken branch instructions retired.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0x80",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.ALL_TAKEN_BRANCHES",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired taken branch instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts far branch instructions retired.  This includes far jump, far call and return, and Interrupt call and return.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xbf",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.FAR_BRANCH",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired far branch instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts near indirect call or near indirect jmp branch instructions retired.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xeb",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.NON_RETURN_IND",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired instructions of near indirect Jmp or call (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts near return branch instructions retired.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xf7",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.RETURN",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired near return instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts near CALL branch instructions retired.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xf9",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.CALL",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired near call instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts near indirect CALL branch instructions retired.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xfb",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.IND_CALL",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired near indirect call instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts near relative CALL branch instructions retired.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xfd",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.REL_CALL",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired near relative call instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts Jcc (Jump on Conditional Code/Jump if Condition is Met) branch instructions retired that were taken and does not count when the Jcc branch instruction were not taken.",
+        "EventCode": "0xC4",
+        "Counter": "0,1,2,3",
+        "UMask": "0xfe",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_INST_RETIRED.TAKEN_JCC",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired conditional branch instructions that were taken (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts mispredicted branch instructions retired including all branch types.",
+        "EventCode": "0xC5",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_MISP_RETIRED.ALL_BRANCHES",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired mispredicted branch instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts mispredicted retired Jcc (Jump on Conditional Code/Jump if Condition is Met) branch instructions retired, including both when the branch was supposed to be taken and when it was not supposed to be taken (but the processor predicted the opposite condition).",
+        "EventCode": "0xC5",
+        "Counter": "0,1,2,3",
+        "UMask": "0x7e",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_MISP_RETIRED.JCC",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired mispredicted conditional branch instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts mispredicted branch instructions retired that were near indirect call or near indirect jmp, where the target address taken was not what the processor predicted.",
+        "EventCode": "0xC5",
+        "Counter": "0,1,2,3",
+        "UMask": "0xeb",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_MISP_RETIRED.NON_RETURN_IND",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired mispredicted instructions of near indirect Jmp or near indirect call (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts mispredicted near RET branch instructions retired, where the return address taken was not what the processor predicted.",
+        "EventCode": "0xC5",
+        "Counter": "0,1,2,3",
+        "UMask": "0xf7",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_MISP_RETIRED.RETURN",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired mispredicted near return instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts mispredicted near indirect CALL branch instructions retired, where the target address taken was not what the processor predicted.",
+        "EventCode": "0xC5",
+        "Counter": "0,1,2,3",
+        "UMask": "0xfb",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_MISP_RETIRED.IND_CALL",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired mispredicted near indirect call instructions (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts mispredicted retired Jcc (Jump on Conditional Code/Jump if Condition is Met) branch instructions retired that were supposed to be taken but the processor predicted that it would not be taken.",
+        "EventCode": "0xC5",
+        "Counter": "0,1,2,3",
+        "UMask": "0xfe",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BR_MISP_RETIRED.TAKEN_JCC",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Retired mispredicted conditional branch instructions that were taken (Precise event capable)"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts core cycles if either divide unit is busy.",
+        "EventCode": "0xCD",
+        "Counter": "0,1,2,3",
+        "UMask": "0x0",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "CYCLES_DIV_BUSY.ALL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Cycles a divider is busy"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts core cycles the integer divide unit is busy.",
+        "EventCode": "0xCD",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "CYCLES_DIV_BUSY.IDIV",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles the integer divide unit is busy"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts core cycles the floating point divide unit is busy.",
+        "EventCode": "0xCD",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "CYCLES_DIV_BUSY.FPDIV",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Cycles the FP divide unit is busy"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of times a BACLEAR is signaled for any reason, including, but not limited to indirect branch/call,  Jcc (Jump on Conditional Code/Jump if Condition is Met) branch, unconditional branch/call, and returns.",
+        "EventCode": "0xE6",
+        "Counter": "0,1,2,3",
+        "UMask": "0x1",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BACLEARS.ALL",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "BACLEARs asserted for any branch type"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts BACLEARS on return instructions.",
+        "EventCode": "0xE6",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BACLEARS.RETURN",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "BACLEARs asserted for return branch"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts BACLEARS on Jcc (Jump on Conditional Code/Jump if Condition is Met) branches.",
+        "EventCode": "0xE6",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "BACLEARS.COND",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "BACLEARs asserted for conditional branch"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/goldmontplus/virtual-memory.json b/tools/perf/pmu-events/arch/x86/goldmontplus/virtual-memory.json
new file mode 100644
index 000000000000..0b53a3b0dfb8
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/goldmontplus/virtual-memory.json
@@ -0,0 +1,218 @@
+[
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to demand data loads (including SW prefetches) whose address translations missed in all TLB levels and were mapped to 4K pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x08",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED_4K",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walk completed due to a demand load to a 4K page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to demand data loads (including SW prefetches) whose address translations missed in all TLB levels and were mapped to 2M or 4M pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x08",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED_2M_4M",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walk completed due to a demand load to a 2M or 4M page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to demand data loads (including SW prefetches) whose address translations missed in all TLB levels and were mapped to 1GB pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x08",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_LOAD_MISSES.WALK_COMPLETED_1GB",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walk completed due to a demand load to a 1GB page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts once per cycle for each page walk occurring due to a load (demand data loads or SW prefetches). Includes cycles spent traversing the Extended Page Table (EPT). Average cycles per walk can be calculated by dividing by the number of walks.",
+        "EventCode": "0x08",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_LOAD_MISSES.WALK_PENDING",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walks outstanding due to a demand load every cycle."
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to demand data stores whose address translations missed in the TLB and were mapped to 4K pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x49",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_STORE_MISSES.WALK_COMPLETED_4K",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Page walk completed due to a demand data store to a 4K page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to demand data stores whose address translations missed in the TLB and were mapped to 2M or 4M pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x49",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_STORE_MISSES.WALK_COMPLETED_2M_4M",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Page walk completed due to a demand data store to a 2M or 4M page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to demand data stores whose address translations missed in the TLB and were mapped to 1GB pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x49",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_STORE_MISSES.WALK_COMPLETED_1GB",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Page walk completed due to a demand data store to a 1GB page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts once per cycle for each page walk occurring due to a demand data store. Includes cycles spent traversing the Extended Page Table (EPT). Average cycles per walk can be calculated by dividing by the number of walks.",
+        "EventCode": "0x49",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "DTLB_STORE_MISSES.WALK_PENDING",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walks outstanding due to a demand data store every cycle."
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts once per cycle for each page walk only while traversing the Extended Page Table (EPT), and does not count during the rest of the translation.  The EPT is used for translating Guest-Physical Addresses to Physical Addresses for Virtual Machine Monitors (VMMs).  Average cycles per walk can be calculated by dividing the count by number of walks.",
+        "EventCode": "0x4F",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "EPT.WALK_PENDING",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walks outstanding due to walking the EPT every cycle"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts the number of times the machine was unable to find a translation in the Instruction Translation Lookaside Buffer (ITLB) for a linear address of an instruction fetch.  It counts when new translation are filled into the ITLB.  The event is speculative in nature, but will not count translations (page walks) that are begun and not finished, or translations that are finished but not filled into the ITLB.",
+        "EventCode": "0x81",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ITLB.MISS",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "ITLB misses"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to instruction fetches whose address translations missed in the TLB and were mapped to 4K pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x85",
+        "Counter": "0,1,2,3",
+        "UMask": "0x2",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ITLB_MISSES.WALK_COMPLETED_4K",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Page walk completed due to an instruction fetch in a 4K page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to instruction fetches whose address translations missed in the TLB and were mapped to 2M or 4M pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x85",
+        "Counter": "0,1,2,3",
+        "UMask": "0x4",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ITLB_MISSES.WALK_COMPLETED_2M_4M",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Page walk completed due to an instruction fetch in a 2M or 4M page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts page walks completed due to instruction fetches whose address translations missed in the TLB and were mapped to 1GB pages.  The page walks can end with or without a page fault.",
+        "EventCode": "0x85",
+        "Counter": "0,1,2,3",
+        "UMask": "0x8",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ITLB_MISSES.WALK_COMPLETED_1GB",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "2000003",
+        "BriefDescription": "Page walk completed due to an instruction fetch in a 1GB page"
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts once per cycle for each page walk occurring due to an instruction fetch. Includes cycles spent traversing the Extended Page Table (EPT). Average cycles per walk can be calculated by dividing by the number of walks.",
+        "EventCode": "0x85",
+        "Counter": "0,1,2,3",
+        "UMask": "0x10",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "ITLB_MISSES.WALK_PENDING",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Page walks outstanding due to an instruction fetch every cycle."
+    },
+    {
+        "CollectPEBSRecord": "1",
+        "PublicDescription": "Counts STLB flushes.  The TLBs are flushed on instructions like INVLPG and MOV to CR3.",
+        "EventCode": "0xBD",
+        "Counter": "0,1,2,3",
+        "UMask": "0x20",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "TLB_FLUSHES.STLB_ANY",
+        "PDIR_COUNTER": "na",
+        "SampleAfterValue": "20003",
+        "BriefDescription": "STLB flushes"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts load uops retired that caused a DTLB miss.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x11",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.DTLB_MISS_LOADS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Load uops retired that missed the DTLB (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts store uops retired that caused a DTLB miss.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x12",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.DTLB_MISS_STORES",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Store uops retired that missed the DTLB (Precise event capable)"
+    },
+    {
+        "PEBS": "2",
+        "CollectPEBSRecord": "2",
+        "PublicDescription": "Counts uops retired that had a DTLB miss on load, store or either.  Note that when two distinct memory operations to the same page miss the DTLB, only one of them will be recorded as a DTLB miss.",
+        "EventCode": "0xD0",
+        "Counter": "0,1,2,3",
+        "UMask": "0x13",
+        "PEBScounters": "0,1,2,3",
+        "EventName": "MEM_UOPS_RETIRED.DTLB_MISS",
+        "SampleAfterValue": "200003",
+        "BriefDescription": "Memory uops retired that missed the DTLB (Precise event capable)"
+    }
+]
\ No newline at end of file
diff --git a/tools/perf/pmu-events/arch/x86/haswell/hsw-metrics.json b/tools/perf/pmu-events/arch/x86/haswell/hsw-metrics.json
new file mode 100644
index 000000000000..5ab5c78fe580
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/haswell/hsw-metrics.json
@@ -0,0 +1,158 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , IDQ.MITE_UOPS / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 16 * ( ICACHE.HIT + ICACHE.MISSES ) / 4.0 ) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "( UOPS_EXECUTED.CORE / 2 / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@) ) if #SMT_on else UOPS_EXECUTED.CORE / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFDATA_STALL  - (( 14 * ITLB_MISSES.STLB_HIT + ITLB_MISSES.WALK_DURATION )) ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_DURATION + DTLB_LOAD_MISSES.WALK_DURATION + DTLB_STORE_MISSES.WALK_DURATION ) / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/haswellx/hsx-metrics.json b/tools/perf/pmu-events/arch/x86/haswellx/hsx-metrics.json
new file mode 100644
index 000000000000..5ab5c78fe580
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/haswellx/hsx-metrics.json
@@ -0,0 +1,158 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , IDQ.MITE_UOPS / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 16 * ( ICACHE.HIT + ICACHE.MISSES ) / 4.0 ) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "( UOPS_EXECUTED.CORE / 2 / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@) ) if #SMT_on else UOPS_EXECUTED.CORE / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFDATA_STALL  - (( 14 * ITLB_MISSES.STLB_HIT + ITLB_MISSES.WALK_DURATION )) ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_DURATION + DTLB_LOAD_MISSES.WALK_DURATION + DTLB_STORE_MISSES.WALK_DURATION ) / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/ivybridge/ivb-metrics.json b/tools/perf/pmu-events/arch/x86/ivybridge/ivb-metrics.json
new file mode 100644
index 000000000000..7c2679514efb
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/ivybridge/ivb-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , UOPS_ISSUED.ANY / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 32 * ( ICACHE.HIT + ICACHE.MISSES ) / 4) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else UOPS_EXECUTED.CYCLES_GE_1_UOP_EXEC)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFETCH_STALL ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_DURATION + DTLB_LOAD_MISSES.WALK_DURATION + DTLB_STORE_MISSES.WALK_DURATION ) / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EXE.SSE_SCALAR_DOUBLE ) + 2* FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4*( FP_COMP_OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE ) + 8* SIMD_FP_256.PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/ivytown/ivt-metrics.json b/tools/perf/pmu-events/arch/x86/ivytown/ivt-metrics.json
new file mode 100644
index 000000000000..7c2679514efb
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/ivytown/ivt-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , UOPS_ISSUED.ANY / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 32 * ( ICACHE.HIT + ICACHE.MISSES ) / 4) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / (( cpu@UOPS_EXECUTED.CORE\\,cmask\\=1@ / 2) if #SMT_on else UOPS_EXECUTED.CYCLES_GE_1_UOP_EXEC)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE.IFETCH_STALL ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_UOPS_RETIRED.L1_MISS + mem_load_uops_retired.hit_lfb )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( cpu@l1d_pend_miss.pending_cycles\\,any\\=1@ / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_DURATION + DTLB_LOAD_MISSES.WALK_DURATION + DTLB_STORE_MISSES.WALK_DURATION ) / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EXE.SSE_SCALAR_DOUBLE ) + 2* FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4*( FP_COMP_OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE ) + 8* SIMD_FP_256.PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/jaketown/jkt-metrics.json b/tools/perf/pmu-events/arch/x86/jaketown/jkt-metrics.json
new file mode 100644
index 000000000000..fd7d7c438226
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/jaketown/jkt-metrics.json
@@ -0,0 +1,140 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , UOPS_ISSUED.ANY / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 32 * ( ICACHE.HIT + ICACHE.MISSES ) / 4) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_DISPATCHED.THREAD / (( cpu@UOPS_DISPATCHED.CORE\\,cmask\\=1@ / 2) if #SMT_on else cpu@UOPS_DISPATCHED.CORE\\,cmask\\=1@)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EXE.SSE_SCALAR_DOUBLE ) + 2* FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4*( FP_COMP_OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE ) + 8* SIMD_FP_256.PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/mapfile.csv b/tools/perf/pmu-events/arch/x86/mapfile.csv
index 4ea068366c3e..fe1a2c47cabf 100644
--- a/tools/perf/pmu-events/arch/x86/mapfile.csv
+++ b/tools/perf/pmu-events/arch/x86/mapfile.csv
@@ -9,6 +9,7 @@ GenuineIntel-6-27,v4,bonnell,core
 GenuineIntel-6-36,v4,bonnell,core
 GenuineIntel-6-35,v4,bonnell,core
 GenuineIntel-6-5C,v8,goldmont,core
+GenuineIntel-6-7A,v1,goldmontplus,core
 GenuineIntel-6-3C,v24,haswell,core
 GenuineIntel-6-45,v24,haswell,core
 GenuineIntel-6-46,v24,haswell,core
diff --git a/tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json b/tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json
new file mode 100644
index 000000000000..fd7d7c438226
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/sandybridge/snb-metrics.json
@@ -0,0 +1,140 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , UOPS_ISSUED.ANY / ( (UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 32 * ( ICACHE.HIT + ICACHE.MISSES ) / 4) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_DISPATCHED.THREAD / (( cpu@UOPS_DISPATCHED.CORE\\,cmask\\=1@ / 2) if #SMT_on else cpu@UOPS_DISPATCHED.CORE\\,cmask\\=1@)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_COMP_OPS_EXE.SSE_SCALAR_SINGLE + FP_COMP_OPS_EXE.SSE_SCALAR_DOUBLE ) + 2* FP_COMP_OPS_EXE.SSE_PACKED_DOUBLE + 4*( FP_COMP_OPS_EXE.SSE_PACKED_SINGLE + SIMD_FP_256.PACKED_DOUBLE ) + 8* SIMD_FP_256.PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/skylake/skl-metrics.json b/tools/perf/pmu-events/arch/x86/skylake/skl-metrics.json
new file mode 100644
index 000000000000..36c903faed0b
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/skylake/skl-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , UOPS_ISSUED.ANY / ((UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 64 * ( ICACHE_64B.IFTAG_HIT + ICACHE_64B.IFTAG_MISS ) / 4.1) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / (( UOPS_EXECUTED.CORE_CYCLES_GE_1 / 2) if #SMT_on else UOPS_EXECUTED.CORE_CYCLES_GE_1)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE_16B.IFDATA_STALL  - ICACHE_64B.IFTAG_STALL ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_RETIRED.L1_MISS_PS + MEM_LOAD_RETIRED.FB_HIT_PS )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( L1D_PEND_MISS.PENDING_CYCLES_ANY / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_PENDING + DTLB_LOAD_MISSES.WALK_PENDING + DTLB_STORE_MISSES.WALK_PENDING + EPT.WALK_PENDING ) / ( 2 * (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles) )",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_ARITH_INST_RETIRED.SCALAR_SINGLE + FP_ARITH_INST_RETIRED.SCALAR_DOUBLE ) + 2* FP_ARITH_INST_RETIRED.128B_PACKED_DOUBLE + 4*( FP_ARITH_INST_RETIRED.128B_PACKED_SINGLE + FP_ARITH_INST_RETIRED.256B_PACKED_DOUBLE ) + 8* FP_ARITH_INST_RETIRED.256B_PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json b/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json
new file mode 100644
index 000000000000..36c903faed0b
--- /dev/null
+++ b/tools/perf/pmu-events/arch/x86/skylakex/skx-metrics.json
@@ -0,0 +1,164 @@
+[
+    {
+        "BriefDescription": "Instructions Per Cycle (per logical thread)",
+        "MetricExpr": "INST_RETIRED.ANY / CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "IPC"
+    },
+    {
+        "BriefDescription": "Uops Per Instruction",
+        "MetricExpr": "UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY",
+        "MetricGroup": "Pipeline",
+        "MetricName": "UPI"
+    },
+    {
+        "BriefDescription": "Rough Estimation of fraction of fetched lines bytes that were likely consumed by program instructions",
+        "MetricExpr": "min( 1 , UOPS_ISSUED.ANY / ((UOPS_RETIRED.RETIRE_SLOTS / INST_RETIRED.ANY) * 64 * ( ICACHE_64B.IFTAG_HIT + ICACHE_64B.IFTAG_MISS ) / 4.1) )",
+        "MetricGroup": "Frontend",
+        "MetricName": "IFetch_Line_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of Uops delivered by the DSB (aka Decoded Icache; or Uop Cache)",
+        "MetricExpr": "IDQ.DSB_UOPS / ( IDQ.DSB_UOPS + LSD.UOPS + IDQ.MITE_UOPS + IDQ.MS_UOPS )",
+        "MetricGroup": "DSB; Frontend_Bandwidth",
+        "MetricName": "DSB_Coverage"
+    },
+    {
+        "BriefDescription": "Cycles Per Instruction (threaded)",
+        "MetricExpr": "1 / (INST_RETIRED.ANY / cycles)",
+        "MetricGroup": "Pipeline;Summary",
+        "MetricName": "CPI"
+    },
+    {
+        "BriefDescription": "Per-thread actual clocks when the logical processor is active. This is called 'Clockticks' in VTune.",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "Summary",
+        "MetricName": "CLKS"
+    },
+    {
+        "BriefDescription": "Total issue-pipeline slots",
+        "MetricExpr": "4*(( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "TopDownL1",
+        "MetricName": "SLOTS"
+    },
+    {
+        "BriefDescription": "Total number of retired Instructions",
+        "MetricExpr": "INST_RETIRED.ANY",
+        "MetricGroup": "Summary",
+        "MetricName": "Instructions"
+    },
+    {
+        "BriefDescription": "Instructions Per Cycle (per physical core)",
+        "MetricExpr": "INST_RETIRED.ANY / (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles)",
+        "MetricGroup": "SMT",
+        "MetricName": "CoreIPC"
+    },
+    {
+        "BriefDescription": "Instruction-Level-Parallelism (average number of uops executed when there is at least 1 uop executed)",
+        "MetricExpr": "UOPS_EXECUTED.THREAD / (( UOPS_EXECUTED.CORE_CYCLES_GE_1 / 2) if #SMT_on else UOPS_EXECUTED.CORE_CYCLES_GE_1)",
+        "MetricGroup": "Pipeline;Ports_Utilization",
+        "MetricName": "ILP"
+    },
+    {
+        "BriefDescription": "Average Branch Address Clear Cost (fraction of cycles)",
+        "MetricExpr": "2* (( RS_EVENTS.EMPTY_CYCLES - ICACHE_16B.IFDATA_STALL  - ICACHE_64B.IFTAG_STALL ) / RS_EVENTS.EMPTY_END)",
+        "MetricGroup": "Unknown_Branches",
+        "MetricName": "BAClear_Cost"
+    },
+    {
+        "BriefDescription": "Core actual clocks when any thread is active on the physical core",
+        "MetricExpr": "( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else CPU_CLK_UNHALTED.THREAD",
+        "MetricGroup": "SMT",
+        "MetricName": "CORE_CLKS"
+    },
+    {
+        "BriefDescription": "Actual Average Latency for L1 data-cache miss demand loads",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / ( MEM_LOAD_RETIRED.L1_MISS_PS + MEM_LOAD_RETIRED.FB_HIT_PS )",
+        "MetricGroup": "Memory_Bound;Memory_Lat",
+        "MetricName": "Load_Miss_Real_Latency"
+    },
+    {
+        "BriefDescription": "Memory-Level-Parallelism (average number of L1 miss demand load when there is at least 1 such miss)",
+        "MetricExpr": "L1D_PEND_MISS.PENDING / (( L1D_PEND_MISS.PENDING_CYCLES_ANY / 2) if #SMT_on else L1D_PEND_MISS.PENDING_CYCLES)",
+        "MetricGroup": "Memory_Bound;Memory_BW",
+        "MetricName": "MLP"
+    },
+    {
+        "BriefDescription": "Utilization of the core's Page Walker(s) serving STLB misses triggered by instruction/Load/Store accesses",
+        "MetricExpr": "( ITLB_MISSES.WALK_PENDING + DTLB_LOAD_MISSES.WALK_PENDING + DTLB_STORE_MISSES.WALK_PENDING + EPT.WALK_PENDING ) / ( 2 * (( CPU_CLK_UNHALTED.THREAD_ANY / 2 ) if #SMT_on else cycles) )",
+        "MetricGroup": "TLB",
+        "MetricName": "Page_Walks_Utilization"
+    },
+    {
+        "BriefDescription": "Average CPU Utilization",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC / msr@tsc@",
+        "MetricGroup": "Summary",
+        "MetricName": "CPU_Utilization"
+    },
+    {
+        "BriefDescription": "Giga Floating Point Operations Per Second",
+        "MetricExpr": "(( 1*( FP_ARITH_INST_RETIRED.SCALAR_SINGLE + FP_ARITH_INST_RETIRED.SCALAR_DOUBLE ) + 2* FP_ARITH_INST_RETIRED.128B_PACKED_DOUBLE + 4*( FP_ARITH_INST_RETIRED.128B_PACKED_SINGLE + FP_ARITH_INST_RETIRED.256B_PACKED_DOUBLE ) + 8* FP_ARITH_INST_RETIRED.256B_PACKED_SINGLE )) / 1000000000 / duration_time",
+        "MetricGroup": "FLOPS;Summary",
+        "MetricName": "GFLOPs"
+    },
+    {
+        "BriefDescription": "Average Frequency Utilization relative nominal frequency",
+        "MetricExpr": "CPU_CLK_UNHALTED.THREAD / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Power",
+        "MetricName": "Turbo_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles where both hardware threads were active",
+        "MetricExpr": "1 - CPU_CLK_THREAD_UNHALTED.ONE_THREAD_ACTIVE / ( CPU_CLK_THREAD_UNHALTED.REF_XCLK_ANY / 2 ) if #SMT_on else 0",
+        "MetricGroup": "SMT;Summary",
+        "MetricName": "SMT_2T_Utilization"
+    },
+    {
+        "BriefDescription": "Fraction of cycles spent in Kernel mode",
+        "MetricExpr": "CPU_CLK_UNHALTED.REF_TSC:u / CPU_CLK_UNHALTED.REF_TSC",
+        "MetricGroup": "Summary",
+        "MetricName": "Kernel_Utilization"
+    },
+    {
+        "BriefDescription": "C3 residency percent per core",
+        "MetricExpr": "(cstate_core@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Core_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per core",
+        "MetricExpr": "(cstate_core@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Core_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per core",
+        "MetricExpr": "(cstate_core@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Core_Residency"
+    },
+    {
+        "BriefDescription": "C2 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c2\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C2_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C3 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c3\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C3_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C6 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c6\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C6_Pkg_Residency"
+    },
+    {
+        "BriefDescription": "C7 residency percent per package",
+        "MetricExpr": "(cstate_pkg@c7\\-residency@ / msr@tsc@) * 100",
+        "MetricGroup": "Power",
+        "MetricName": "C7_Pkg_Residency"
+    }
+]
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index d51dc9ca8861..9eb7047bafe4 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -292,7 +292,7 @@ static int print_events_table_entry(void *data, char *name, char *event,
 				    char *desc, char *long_desc,
 				    char *pmu, char *unit, char *perpkg,
 				    char *metric_expr,
-				    char *metric_name)
+				    char *metric_name, char *metric_group)
 {
 	struct perf_entry_data *pd = data;
 	FILE *outfp = pd->outfp;
@@ -304,8 +304,10 @@ static int print_events_table_entry(void *data, char *name, char *event,
 	 */
 	fprintf(outfp, "{\n");
 
-	fprintf(outfp, "\t.name = \"%s\",\n", name);
-	fprintf(outfp, "\t.event = \"%s\",\n", event);
+	if (name)
+		fprintf(outfp, "\t.name = \"%s\",\n", name);
+	if (event)
+		fprintf(outfp, "\t.event = \"%s\",\n", event);
 	fprintf(outfp, "\t.desc = \"%s\",\n", desc);
 	fprintf(outfp, "\t.topic = \"%s\",\n", topic);
 	if (long_desc && long_desc[0])
@@ -320,6 +322,8 @@ static int print_events_table_entry(void *data, char *name, char *event,
 		fprintf(outfp, "\t.metric_expr = \"%s\",\n", metric_expr);
 	if (metric_name)
 		fprintf(outfp, "\t.metric_name = \"%s\",\n", metric_name);
+	if (metric_group)
+		fprintf(outfp, "\t.metric_group = \"%s\",\n", metric_group);
 	fprintf(outfp, "},\n");
 
 	return 0;
@@ -357,6 +361,9 @@ static char *real_event(const char *name, char *event)
 {
 	int i;
 
+	if (!name)
+		return NULL;
+
 	for (i = 0; fixed[i].name; i++)
 		if (!strcasecmp(name, fixed[i].name))
 			return (char *)fixed[i].event;
@@ -369,7 +376,7 @@ int json_events(const char *fn,
 		      char *long_desc,
 		      char *pmu, char *unit, char *perpkg,
 		      char *metric_expr,
-		      char *metric_name),
+		      char *metric_name, char *metric_group),
 	  void *data)
 {
 	int err = -EIO;
@@ -397,6 +404,7 @@ int json_events(const char *fn,
 		char *unit = NULL;
 		char *metric_expr = NULL;
 		char *metric_name = NULL;
+		char *metric_group = NULL;
 		unsigned long long eventcode = 0;
 		struct msrmap *msr = NULL;
 		jsmntok_t *msrval = NULL;
@@ -476,6 +484,8 @@ int json_events(const char *fn,
 				addfield(map, &perpkg, "", "", val);
 			} else if (json_streq(map, field, "MetricName")) {
 				addfield(map, &metric_name, "", "", val);
+			} else if (json_streq(map, field, "MetricGroup")) {
+				addfield(map, &metric_group, "", "", val);
 			} else if (json_streq(map, field, "MetricExpr")) {
 				addfield(map, &metric_expr, "", "", val);
 				for (s = metric_expr; *s; s++)
@@ -501,10 +511,11 @@ int json_events(const char *fn,
 			addfield(map, &event, ",", filter, NULL);
 		if (msr != NULL)
 			addfield(map, &event, ",", msr->pname, msrval);
-		fixname(name);
+		if (name)
+			fixname(name);
 
 		err = func(data, name, real_event(name, event), desc, long_desc,
-				pmu, unit, perpkg, metric_expr, metric_name);
+			   pmu, unit, perpkg, metric_expr, metric_name, metric_group);
 		free(event);
 		free(desc);
 		free(name);
@@ -516,6 +527,7 @@ int json_events(const char *fn,
 		free(unit);
 		free(metric_expr);
 		free(metric_name);
+		free(metric_group);
 		if (err)
 			break;
 		tok += j;
diff --git a/tools/perf/pmu-events/jevents.h b/tools/perf/pmu-events/jevents.h
index 611fac01913d..4684c673c445 100644
--- a/tools/perf/pmu-events/jevents.h
+++ b/tools/perf/pmu-events/jevents.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef JEVENTS_H
 #define JEVENTS_H 1
 
@@ -6,7 +7,7 @@ int json_events(const char *fn,
 				char *long_desc,
 				char *pmu,
 				char *unit, char *perpkg, char *metric_expr,
-				char *metric_name),
+				char *metric_name, char *metric_group),
 		void *data);
 char *get_cpu_str(void);
 
diff --git a/tools/perf/pmu-events/jsmn.h b/tools/perf/pmu-events/jsmn.h
index d666b10cf25b..c7b0f6ea2a31 100644
--- a/tools/perf/pmu-events/jsmn.h
+++ b/tools/perf/pmu-events/jsmn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __JSMN_H_
 #define __JSMN_H_
 
diff --git a/tools/perf/pmu-events/json.h b/tools/perf/pmu-events/json.h
index 278ebd32cfb6..fbcd5a0590ad 100644
--- a/tools/perf/pmu-events/json.h
+++ b/tools/perf/pmu-events/json.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef JSON_H
 #define JSON_H 1
 
diff --git a/tools/perf/pmu-events/pmu-events.h b/tools/perf/pmu-events/pmu-events.h
index 569eab3688dd..92a4d15ee0b9 100644
--- a/tools/perf/pmu-events/pmu-events.h
+++ b/tools/perf/pmu-events/pmu-events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PMU_EVENTS_H
 #define PMU_EVENTS_H
 
@@ -15,6 +16,7 @@ struct pmu_event {
 	const char *perpkg;
 	const char *metric_expr;
 	const char *metric_name;
+	const char *metric_group;
 };
 
 /*
diff --git a/tools/perf/python/tracepoint.py b/tools/perf/python/tracepoint.py
index eb4dbed57de7..eb76f6516247 100755
--- a/tools/perf/python/tracepoint.py
+++ b/tools/perf/python/tracepoint.py
@@ -1,4 +1,5 @@
 #! /usr/bin/python
+# SPDX-License-Identifier: GPL-2.0
 # -*- python -*-
 # -*- coding: utf-8 -*-
 
diff --git a/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL b/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL
index decdeb0f6789..e8994332d7dc 100644
--- a/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL
+++ b/tools/perf/scripts/perl/Perf-Trace-Util/Makefile.PL
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 use 5.010000;
 use ExtUtils::MakeMaker;
 # See lib/ExtUtils/MakeMaker.pm for details of how to influence
diff --git a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/EventClass.py b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/EventClass.py
index 9e0985794e20..81a56cd2b3c1 100755
--- a/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/EventClass.py
+++ b/tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/EventClass.py
@@ -1,4 +1,5 @@
 # EventClass.py
+# SPDX-License-Identifier: GPL-2.0
 #
 # This is a library defining some events types classes, which could
 # be used by other scripts to analyzing the perf samples.
diff --git a/tools/perf/scripts/python/event_analyzing_sample.py b/tools/perf/scripts/python/event_analyzing_sample.py
index 163c39fa12d9..4e843b9864ec 100644
--- a/tools/perf/scripts/python/event_analyzing_sample.py
+++ b/tools/perf/scripts/python/event_analyzing_sample.py
@@ -1,4 +1,5 @@
 # event_analyzing_sample.py: general event handler in python
+# SPDX-License-Identifier: GPL-2.0
 #
 # Current perf report is already very powerful with the annotation integrated,
 # and this script is not trying to be as powerful as perf report, but
diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py
index 0b6ce8c253e8..a150164b44a3 100755
--- a/tools/perf/scripts/python/net_dropmonitor.py
+++ b/tools/perf/scripts/python/net_dropmonitor.py
@@ -1,4 +1,5 @@
 # Monitor the system for dropped packets and proudce a report of drop locations and counts
+# SPDX-License-Identifier: GPL-2.0
 
 import os
 import sys
diff --git a/tools/perf/scripts/python/netdev-times.py b/tools/perf/scripts/python/netdev-times.py
index 4c6f09ac7d12..9b2050f778f1 100644
--- a/tools/perf/scripts/python/netdev-times.py
+++ b/tools/perf/scripts/python/netdev-times.py
@@ -1,4 +1,5 @@
 # Display a process of packets and processed time.
+# SPDX-License-Identifier: GPL-2.0
 # It helps us to investigate networking or network device.
 #
 # options
diff --git a/tools/perf/scripts/python/stackcollapse.py b/tools/perf/scripts/python/stackcollapse.py
index 5a605f70ef32..1697b5e18c96 100755
--- a/tools/perf/scripts/python/stackcollapse.py
+++ b/tools/perf/scripts/python/stackcollapse.py
@@ -1,4 +1,5 @@
 # stackcollapse.py - format perf samples with one line per distinct call stack
+# SPDX-License-Identifier: GPL-2.0
 #
 # This script's output has two space-separated fields.  The first is a semicolon
 # separated stack including the program name (from the "comm" field) and the
diff --git a/tools/perf/scripts/python/stat-cpi.py b/tools/perf/scripts/python/stat-cpi.py
index 8b60f343dd07..8410672efb8b 100644
--- a/tools/perf/scripts/python/stat-cpi.py
+++ b/tools/perf/scripts/python/stat-cpi.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+# SPDX-License-Identifier: GPL-2.0
 
 data    = {}
 times   = []
diff --git a/tools/perf/tests/attr.c b/tools/perf/tests/attr.c
index c9aafed7da15..0e1367f90af5 100644
--- a/tools/perf/tests/attr.c
+++ b/tools/perf/tests/attr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * The struct perf_event_attr test support.
  *
@@ -166,7 +167,7 @@ static int run_dir(const char *d, const char *perf)
 	snprintf(cmd, 3*PATH_MAX, PYTHON " %s/attr.py -d %s/attr/ -p %s %.*s",
 		 d, d, perf, vcnt, v);
 
-	return system(cmd);
+	return system(cmd) ? TEST_FAIL : TEST_OK;
 }
 
 int test__attr(struct test *test __maybe_unused, int subtest __maybe_unused)
diff --git a/tools/perf/tests/attr.py b/tools/perf/tests/attr.py
index 6bb50e82a3e3..ff9b60b99f52 100644
--- a/tools/perf/tests/attr.py
+++ b/tools/perf/tests/attr.py
@@ -1,4 +1,5 @@
 #! /usr/bin/python
+# SPDX-License-Identifier: GPL-2.0
 
 import os
 import sys
@@ -237,6 +238,7 @@ class Test(object):
         # events in result. Fail if there's not any.
         for exp_name, exp_event in expect.items():
             exp_list = []
+            res_event = {}
             log.debug("    matching [%s]" % exp_name)
             for res_name, res_event in result.items():
                 log.debug("      to [%s]" % res_name)
@@ -253,7 +255,10 @@ class Test(object):
                 if exp_event.optional():
                     log.debug("    %s does not match, but is optional" % exp_name)
                 else:
-                    exp_event.diff(res_event)
+                    if not res_event:
+                        log.debug("    res_event is empty");
+                    else:
+                        exp_event.diff(res_event)
                     raise Fail(self, 'match failure');
 
             match[exp_name] = exp_list
diff --git a/tools/perf/tests/attr/base-record b/tools/perf/tests/attr/base-record
index 31e0b1da830b..37940665f736 100644
--- a/tools/perf/tests/attr/base-record
+++ b/tools/perf/tests/attr/base-record
@@ -23,7 +23,7 @@ comm=1
 freq=1
 inherit_stat=0
 enable_on_exec=1
-task=0
+task=1
 watermark=0
 precise_ip=0|1|2|3
 mmap_data=0
diff --git a/tools/perf/tests/attr/test-record-group b/tools/perf/tests/attr/test-record-group
index 6e7961f6f7a5..618ba1c17474 100644
--- a/tools/perf/tests/attr/test-record-group
+++ b/tools/perf/tests/attr/test-record-group
@@ -17,5 +17,6 @@ sample_type=327
 read_format=4
 mmap=0
 comm=0
+task=0
 enable_on_exec=0
 disabled=0
diff --git a/tools/perf/tests/attr/test-record-group-sampling b/tools/perf/tests/attr/test-record-group-sampling
index ef59afd6d635..f906b793196f 100644
--- a/tools/perf/tests/attr/test-record-group-sampling
+++ b/tools/perf/tests/attr/test-record-group-sampling
@@ -23,7 +23,7 @@ sample_type=343
 
 # PERF_FORMAT_ID | PERF_FORMAT_GROUP
 read_format=12
-
+task=0
 mmap=0
 comm=0
 enable_on_exec=0
diff --git a/tools/perf/tests/attr/test-record-group1 b/tools/perf/tests/attr/test-record-group1
index 87a222d014d8..48e8bd12fe46 100644
--- a/tools/perf/tests/attr/test-record-group1
+++ b/tools/perf/tests/attr/test-record-group1
@@ -18,5 +18,6 @@ sample_type=327
 read_format=4
 mmap=0
 comm=0
+task=0
 enable_on_exec=0
 disabled=0
diff --git a/tools/perf/tests/attr/test-stat-C0 b/tools/perf/tests/attr/test-stat-C0
index 67717fe6a65d..a2c76d10b2bb 100644
--- a/tools/perf/tests/attr/test-stat-C0
+++ b/tools/perf/tests/attr/test-stat-C0
@@ -7,3 +7,4 @@ ret     = 1
 # events are disabled by default when attached to cpu
 disabled=1
 enable_on_exec=0
+optional=1
diff --git a/tools/perf/tests/attr/test-stat-basic b/tools/perf/tests/attr/test-stat-basic
index 74e17881f2ba..69867d049fda 100644
--- a/tools/perf/tests/attr/test-stat-basic
+++ b/tools/perf/tests/attr/test-stat-basic
@@ -4,3 +4,4 @@ args    = -e cycles kill >/dev/null 2>&1
 ret     = 1
 
 [event:base-stat]
+optional=1
diff --git a/tools/perf/tests/attr/test-stat-default b/tools/perf/tests/attr/test-stat-default
index e911dbd4eb47..d9e99b3f77e6 100644
--- a/tools/perf/tests/attr/test-stat-default
+++ b/tools/perf/tests/attr/test-stat-default
@@ -32,6 +32,7 @@ config=2
 fd=5
 type=0
 config=0
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
 [event6:base-stat]
@@ -52,15 +53,18 @@ optional=1
 fd=8
 type=0
 config=1
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
 [event9:base-stat]
 fd=9
 type=0
 config=4
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
 [event10:base-stat]
 fd=10
 type=0
 config=5
+optional=1
diff --git a/tools/perf/tests/attr/test-stat-detailed-1 b/tools/perf/tests/attr/test-stat-detailed-1
index b39270a08e74..8b04a055d154 100644
--- a/tools/perf/tests/attr/test-stat-detailed-1
+++ b/tools/perf/tests/attr/test-stat-detailed-1
@@ -33,6 +33,7 @@ config=2
 fd=5
 type=0
 config=0
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
 [event6:base-stat]
@@ -53,18 +54,21 @@ optional=1
 fd=8
 type=0
 config=1
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
 [event9:base-stat]
 fd=9
 type=0
 config=4
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
 [event10:base-stat]
 fd=10
 type=0
 config=5
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
@@ -74,6 +78,7 @@ config=5
 fd=11
 type=3
 config=0
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
@@ -83,6 +88,7 @@ config=0
 fd=12
 type=3
 config=65536
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_LL                 <<  0  |
@@ -92,6 +98,7 @@ config=65536
 fd=13
 type=3
 config=2
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_LL                 <<  0  |
@@ -101,3 +108,4 @@ config=2
 fd=14
 type=3
 config=65538
+optional=1
diff --git a/tools/perf/tests/attr/test-stat-detailed-2 b/tools/perf/tests/attr/test-stat-detailed-2
index 45f8e6ea34f8..4fca9f1bfbf8 100644
--- a/tools/perf/tests/attr/test-stat-detailed-2
+++ b/tools/perf/tests/attr/test-stat-detailed-2
@@ -33,6 +33,7 @@ config=2
 fd=5
 type=0
 config=0
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
 [event6:base-stat]
@@ -53,18 +54,21 @@ optional=1
 fd=8
 type=0
 config=1
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
 [event9:base-stat]
 fd=9
 type=0
 config=4
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
 [event10:base-stat]
 fd=10
 type=0
 config=5
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
@@ -74,6 +78,7 @@ config=5
 fd=11
 type=3
 config=0
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
@@ -83,6 +88,7 @@ config=0
 fd=12
 type=3
 config=65536
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_LL                 <<  0  |
@@ -92,6 +98,7 @@ config=65536
 fd=13
 type=3
 config=2
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_LL                 <<  0  |
@@ -101,6 +108,7 @@ config=2
 fd=14
 type=3
 config=65538
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_L1I                <<  0  |
@@ -120,6 +128,7 @@ optional=1
 fd=16
 type=3
 config=65537
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
@@ -129,6 +138,7 @@ config=65537
 fd=17
 type=3
 config=3
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
@@ -138,6 +148,7 @@ config=3
 fd=18
 type=3
 config=65539
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
@@ -147,6 +158,7 @@ config=65539
 fd=19
 type=3
 config=4
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
@@ -156,3 +168,4 @@ config=4
 fd=20
 type=3
 config=65540
+optional=1
diff --git a/tools/perf/tests/attr/test-stat-detailed-3 b/tools/perf/tests/attr/test-stat-detailed-3
index 30ae0fb7a3fd..4bb58e1c82a6 100644
--- a/tools/perf/tests/attr/test-stat-detailed-3
+++ b/tools/perf/tests/attr/test-stat-detailed-3
@@ -33,6 +33,7 @@ config=2
 fd=5
 type=0
 config=0
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
 [event6:base-stat]
@@ -53,18 +54,21 @@ optional=1
 fd=8
 type=0
 config=1
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_INSTRUCTIONS
 [event9:base-stat]
 fd=9
 type=0
 config=4
+optional=1
 
 # PERF_TYPE_HARDWARE / PERF_COUNT_HW_BRANCH_MISSES
 [event10:base-stat]
 fd=10
 type=0
 config=5
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
@@ -74,6 +78,7 @@ config=5
 fd=11
 type=3
 config=0
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
@@ -83,6 +88,7 @@ config=0
 fd=12
 type=3
 config=65536
+optional=1
 
 # PERF_TYPE_HW_CACHE /
 #  PERF_COUNT_HW_CACHE_LL                 <<  0  |
@@ -92,6 +98,7 @@ config=65536
 fd=13
 type=3
 config=2
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_LL                 <<  0  |
@@ -101,6 +108,7 @@ config=2
 fd=14
 type=3
 config=65538
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_L1I                <<  0  |
@@ -120,6 +128,7 @@ optional=1
 fd=16
 type=3
 config=65537
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
@@ -129,6 +138,7 @@ config=65537
 fd=17
 type=3
 config=3
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_DTLB               <<  0  |
@@ -138,6 +148,7 @@ config=3
 fd=18
 type=3
 config=65539
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
@@ -147,6 +158,7 @@ config=65539
 fd=19
 type=3
 config=4
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_ITLB               <<  0  |
@@ -156,6 +168,7 @@ config=4
 fd=20
 type=3
 config=65540
+optional=1
 
 # PERF_TYPE_HW_CACHE,
 #  PERF_COUNT_HW_CACHE_L1D                <<  0  |
diff --git a/tools/perf/tests/attr/test-stat-group b/tools/perf/tests/attr/test-stat-group
index fdc1596a8862..e15d6946e9b3 100644
--- a/tools/perf/tests/attr/test-stat-group
+++ b/tools/perf/tests/attr/test-stat-group
@@ -6,6 +6,7 @@ ret     = 1
 [event-1:base-stat]
 fd=1
 group_fd=-1
+read_format=3|15
 
 [event-2:base-stat]
 fd=2
@@ -13,3 +14,4 @@ group_fd=1
 config=1
 disabled=0
 enable_on_exec=0
+read_format=3|15
diff --git a/tools/perf/tests/attr/test-stat-group1 b/tools/perf/tests/attr/test-stat-group1
index 2a1f86e4a904..1746751123dc 100644
--- a/tools/perf/tests/attr/test-stat-group1
+++ b/tools/perf/tests/attr/test-stat-group1
@@ -6,6 +6,7 @@ ret     = 1
 [event-1:base-stat]
 fd=1
 group_fd=-1
+read_format=3|15
 
 [event-2:base-stat]
 fd=2
@@ -13,3 +14,4 @@ group_fd=1
 config=1
 disabled=0
 enable_on_exec=0
+read_format=3|15
diff --git a/tools/perf/tests/attr/test-stat-no-inherit b/tools/perf/tests/attr/test-stat-no-inherit
index d54b2a1e3e28..924fbb9300d1 100644
--- a/tools/perf/tests/attr/test-stat-no-inherit
+++ b/tools/perf/tests/attr/test-stat-no-inherit
@@ -5,3 +5,4 @@ ret     = 1
 
 [event:base-stat]
 inherit=0
+optional=1
diff --git a/tools/perf/tests/backward-ring-buffer.c b/tools/perf/tests/backward-ring-buffer.c
index d233ad336463..71b9a0b613d2 100644
--- a/tools/perf/tests/backward-ring-buffer.c
+++ b/tools/perf/tests/backward-ring-buffer.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Test backward bit in event attribute, read ring buffer from end to
  * beginning
diff --git a/tools/perf/tests/bitmap.c b/tools/perf/tests/bitmap.c
index 0d7c06584905..47bedf25ba69 100644
--- a/tools/perf/tests/bitmap.c
+++ b/tools/perf/tests/bitmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/bitmap.h>
 #include "tests.h"
diff --git a/tools/perf/tests/bp_signal.c b/tools/perf/tests/bp_signal.c
index 97937e1bc53a..335b695f4970 100644
--- a/tools/perf/tests/bp_signal.c
+++ b/tools/perf/tests/bp_signal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Inspired by breakpoint overflow test done by
  * Vince Weaver <vincent.weaver@maine.edu> for perf_event_tests
diff --git a/tools/perf/tests/bp_signal_overflow.c b/tools/perf/tests/bp_signal_overflow.c
index 61ecd8021f49..ca962559e845 100644
--- a/tools/perf/tests/bp_signal_overflow.c
+++ b/tools/perf/tests/bp_signal_overflow.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Originally done by Vince Weaver <vincent.weaver@maine.edu> for
  * perf_event_tests (git://github.com/deater/perf_event_tests)
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
index 377bea009163..766573e236e4 100644
--- a/tools/perf/tests/builtin-test.c
+++ b/tools/perf/tests/builtin-test.c
@@ -1,8 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * builtin-test.c
  *
  * Builtin regression testing command: ever growing number of sanity tests
  */
+#include <fcntl.h>
 #include <errno.h>
 #include <unistd.h>
 #include <string.h>
diff --git a/tools/perf/tests/clang.c b/tools/perf/tests/clang.c
index c60ec916f0f2..f45fe11dcf50 100644
--- a/tools/perf/tests/clang.c
+++ b/tools/perf/tests/clang.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tests.h"
 #include "debug.h"
 #include "util.h"
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 466a462b26d1..fcc8984bc329 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
diff --git a/tools/perf/tests/cpumap.c b/tools/perf/tests/cpumap.c
index 199702252270..e78b897677bd 100644
--- a/tools/perf/tests/cpumap.c
+++ b/tools/perf/tests/cpumap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tests.h"
 #include <stdio.h>
 #include "cpumap.h"
diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index 30aead42d136..7f6c52021e41 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dirent.h>
 #include <stdlib.h>
 #include <linux/kernel.h>
diff --git a/tools/perf/tests/dwarf-unwind.c b/tools/perf/tests/dwarf-unwind.c
index 2a7b9b47bbcb..ac40e05bcab4 100644
--- a/tools/perf/tests/dwarf-unwind.c
+++ b/tools/perf/tests/dwarf-unwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/types.h>
 #include <inttypes.h>
@@ -6,7 +7,7 @@
 #include "debug.h"
 #include "machine.h"
 #include "event.h"
-#include "unwind.h"
+#include "../util/unwind.h"
 #include "perf_regs.h"
 #include "map.h"
 #include "thread.h"
diff --git a/tools/perf/tests/event-times.c b/tools/perf/tests/event-times.c
index b82b981c3259..1a2686f1fcf0 100644
--- a/tools/perf/tests/event-times.c
+++ b/tools/perf/tests/event-times.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <errno.h>
 #include <inttypes.h>
diff --git a/tools/perf/tests/event_update.c b/tools/perf/tests/event_update.c
index 9484da2ec6b4..f14dcd613438 100644
--- a/tools/perf/tests/event_update.c
+++ b/tools/perf/tests/event_update.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include "evlist.h"
 #include "evsel.h"
diff --git a/tools/perf/tests/evsel-roundtrip-name.c b/tools/perf/tests/evsel-roundtrip-name.c
index d32759b6e38a..a104728ebf25 100644
--- a/tools/perf/tests/evsel-roundtrip-name.c
+++ b/tools/perf/tests/evsel-roundtrip-name.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "evlist.h"
 #include "evsel.h"
 #include "parse-events.h"
diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c
index 5fc906d26c5c..699561fa512c 100644
--- a/tools/perf/tests/evsel-tp-sched.c
+++ b/tools/perf/tests/evsel-tp-sched.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include <traceevent/event-parse.h>
 #include "evsel.h"
diff --git a/tools/perf/tests/expr.c b/tools/perf/tests/expr.c
index cb251bf523e7..01f0706995a9 100644
--- a/tools/perf/tests/expr.c
+++ b/tools/perf/tests/expr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util/debug.h"
 #include "util/expr.h"
 #include "tests.h"
diff --git a/tools/perf/tests/fdarray.c b/tools/perf/tests/fdarray.c
index 7d3a9e2ff897..c7c81c4a5b2b 100644
--- a/tools/perf/tests/fdarray.c
+++ b/tools/perf/tests/fdarray.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <api/fd/array.h>
 #include <poll.h>
 #include "util/debug.h"
diff --git a/tools/perf/tests/hists_common.c b/tools/perf/tests/hists_common.c
index 00b8dc50f3db..f7c5b613d667 100644
--- a/tools/perf/tests/hists_common.c
+++ b/tools/perf/tests/hists_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include "perf.h"
 #include "util/debug.h"
diff --git a/tools/perf/tests/hists_common.h b/tools/perf/tests/hists_common.h
index 888254e8665c..a2de0ff0ce3a 100644
--- a/tools/perf/tests/hists_common.h
+++ b/tools/perf/tests/hists_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_TESTS__HISTS_COMMON_H__
 #define __PERF_TESTS__HISTS_COMMON_H__
 
diff --git a/tools/perf/tests/hists_cumulate.c b/tools/perf/tests/hists_cumulate.c
index 8d19c0200cb7..65fe02bebbee 100644
--- a/tools/perf/tests/hists_cumulate.c
+++ b/tools/perf/tests/hists_cumulate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "perf.h"
 #include "util/debug.h"
 #include "util/event.h"
diff --git a/tools/perf/tests/hists_filter.c b/tools/perf/tests/hists_filter.c
index 755ca551b810..1c5bedab3c2c 100644
--- a/tools/perf/tests/hists_filter.c
+++ b/tools/perf/tests/hists_filter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "perf.h"
 #include "util/debug.h"
 #include "util/symbol.h"
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 073c9c2856bc..9a9d06cb0222 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "perf.h"
 #include "tests.h"
 #include "debug.h"
diff --git a/tools/perf/tests/hists_output.c b/tools/perf/tests/hists_output.c
index 282d62eaebe2..faacb4f41460 100644
--- a/tools/perf/tests/hists_output.c
+++ b/tools/perf/tests/hists_output.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "perf.h"
 #include "util/debug.h"
 #include "util/event.h"
diff --git a/tools/perf/tests/is_printable_array.c b/tools/perf/tests/is_printable_array.c
index 38f765767587..9c7b3baca4fe 100644
--- a/tools/perf/tests/is_printable_array.c
+++ b/tools/perf/tests/is_printable_array.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include "tests.h"
diff --git a/tools/perf/tests/keep-tracking.c b/tools/perf/tests/keep-tracking.c
index 739428603b71..842d33637a18 100644
--- a/tools/perf/tests/keep-tracking.c
+++ b/tools/perf/tests/keep-tracking.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/types.h>
 #include <unistd.h>
 #include <sys/prctl.h>
diff --git a/tools/perf/tests/kmod-path.c b/tools/perf/tests/kmod-path.c
index 8b9d4ba06c0e..8e57d46109de 100644
--- a/tools/perf/tests/kmod-path.c
+++ b/tools/perf/tests/kmod-path.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdbool.h>
 #include <stdlib.h>
 #include "tests.h"
diff --git a/tools/perf/tests/llvm.c b/tools/perf/tests/llvm.c
index 5187b50dbafe..a039f93199e5 100644
--- a/tools/perf/tests/llvm.c
+++ b/tools/perf/tests/llvm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <bpf/libbpf.h>
 #include <util/llvm-utils.h>
diff --git a/tools/perf/tests/llvm.h b/tools/perf/tests/llvm.h
index b83571758d83..f68b0d9b8ae2 100644
--- a/tools/perf/tests/llvm.h
+++ b/tools/perf/tests/llvm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_TEST_LLVM_H
 #define PERF_TEST_LLVM_H
 
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index bc8a70ee46d8..5a8bf318f8a7 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 /* For the CLR_() macros */
diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c
index f94a4196e7c9..868d82b501f4 100644
--- a/tools/perf/tests/mmap-thread-lookup.c
+++ b/tools/perf/tests/mmap-thread-lookup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <unistd.h>
 #include <sys/syscall.h>
@@ -131,7 +132,7 @@ static int synth_all(struct machine *machine)
 {
 	return perf_event__synthesize_threads(NULL,
 					      perf_event__process,
-					      machine, 0, 500);
+					      machine, 0, 500, 1);
 }
 
 static int synth_process(struct machine *machine)
diff --git a/tools/perf/tests/openat-syscall-all-cpus.c b/tools/perf/tests/openat-syscall-all-cpus.c
index 9cf1c35f2ad0..c531e6deb104 100644
--- a/tools/perf/tests/openat-syscall-all-cpus.c
+++ b/tools/perf/tests/openat-syscall-all-cpus.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 /* For the CPU_* macros */
diff --git a/tools/perf/tests/openat-syscall-tp-fields.c b/tools/perf/tests/openat-syscall-tp-fields.c
index b6ee1c41f45d..d9619d265314 100644
--- a/tools/perf/tests/openat-syscall-tp-fields.c
+++ b/tools/perf/tests/openat-syscall-tp-fields.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/err.h>
 #include "perf.h"
 #include "evlist.h"
diff --git a/tools/perf/tests/openat-syscall.c b/tools/perf/tests/openat-syscall.c
index 9dc5c5d37553..00cd63f90b92 100644
--- a/tools/perf/tests/openat-syscall.c
+++ b/tools/perf/tests/openat-syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <api/fs/tracing_path.h>
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 0f0b025faa4b..f0679613bd18 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "parse-events.h"
 #include "evsel.h"
 #include "evlist.h"
diff --git a/tools/perf/tests/parse-no-sample-id-all.c b/tools/perf/tests/parse-no-sample-id-all.c
index 91867dcc39f0..2196d1497c0c 100644
--- a/tools/perf/tests/parse-no-sample-id-all.c
+++ b/tools/perf/tests/parse-no-sample-id-all.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <stddef.h>
diff --git a/tools/perf/tests/perf-hooks.c b/tools/perf/tests/perf-hooks.c
index bf2517d6de70..a693bcf017ea 100644
--- a/tools/perf/tests/perf-hooks.c
+++ b/tools/perf/tests/perf-hooks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <signal.h>
 #include <stdlib.h>
 
diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 19b650064b70..c34904d37705 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 /* For the CLR_() macros */
diff --git a/tools/perf/tests/perf-targz-src-pkg b/tools/perf/tests/perf-targz-src-pkg
index f2d9c5fe58e0..fae26b1cf08f 100755
--- a/tools/perf/tests/perf-targz-src-pkg
+++ b/tools/perf/tests/perf-targz-src-pkg
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Test one of the main kernel Makefile targets to generate a perf sources tarball
 # suitable for build outside the full kernel sources.
 #
diff --git a/tools/perf/tests/pmu.c b/tools/perf/tests/pmu.c
index 9f7f589f9c54..9abca267afa9 100644
--- a/tools/perf/tests/pmu.c
+++ b/tools/perf/tests/pmu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "parse-events.h"
 #include "pmu.h"
 #include "util.h"
diff --git a/tools/perf/tests/python-use.c b/tools/perf/tests/python-use.c
index 598a7e058ad4..5d2df65ada6a 100644
--- a/tools/perf/tests/python-use.c
+++ b/tools/perf/tests/python-use.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Just test if we can load the python binding.
  */
diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index c3858487159d..3ec6302b6498 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdbool.h>
 #include <inttypes.h>
 #include <linux/kernel.h>
diff --git a/tools/perf/tests/sdt.c b/tools/perf/tests/sdt.c
index a9903d9b8bc2..5059452d27dd 100644
--- a/tools/perf/tests/sdt.c
+++ b/tools/perf/tests/sdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdio.h>
 #include <sys/epoll.h>
diff --git a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
index 462fc755092e..7a84d73324e3 100755
--- a/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
+++ b/tools/perf/tests/shell/trace+probe_libc_inet_pton.sh
@@ -10,6 +10,9 @@
 
 . $(dirname $0)/lib/probe.sh
 
+ld=$(realpath /lib64/ld*.so.* | uniq)
+libc=$(echo $ld | sed 's/ld/libc/g')
+
 trace_libc_inet_pton_backtrace() {
 	idx=0
 	expected[0]="PING.*bytes"
@@ -18,8 +21,8 @@ trace_libc_inet_pton_backtrace() {
 	expected[3]=".*packets transmitted.*"
 	expected[4]="rtt min.*"
 	expected[5]="[0-9]+\.[0-9]+[[:space:]]+probe_libc:inet_pton:\([[:xdigit:]]+\)"
-	expected[6]=".*inet_pton[[:space:]]\(/usr/lib.*/libc-[0-9]+\.[0-9]+\.so\)$"
-	expected[7]="getaddrinfo[[:space:]]\(/usr/lib.*/libc-[0-9]+\.[0-9]+\.so\)$"
+	expected[6]=".*inet_pton[[:space:]]\($libc\)$"
+	expected[7]="getaddrinfo[[:space:]]\($libc\)$"
 	expected[8]=".*\(.*/bin/ping.*\)$"
 
 	perf trace --no-syscalls -e probe_libc:inet_pton/max-stack=3/ ping -6 -c 1 ::1 2>&1 | grep -v ^$ | while read line ; do
@@ -35,7 +38,7 @@ trace_libc_inet_pton_backtrace() {
 }
 
 skip_if_no_perf_probe && \
-perf probe -q /lib64/libc-*.so inet_pton && \
+perf probe -q $libc inet_pton && \
 trace_libc_inet_pton_backtrace
 err=$?
 rm -f ${file}
diff --git a/tools/perf/tests/stat.c b/tools/perf/tests/stat.c
index 7f988a939036..94250024684a 100644
--- a/tools/perf/tests/stat.c
+++ b/tools/perf/tests/stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include "event.h"
 #include "tests.h"
diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index d88511f6072c..725a196991a8 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <unistd.h>
diff --git a/tools/perf/tests/switch-tracking.c b/tools/perf/tests/switch-tracking.c
index 2acd78555192..7d3f4bf9534f 100644
--- a/tools/perf/tests/switch-tracking.c
+++ b/tools/perf/tests/switch-tracking.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/time.h>
 #include <sys/prctl.h>
 #include <errno.h>
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index f0881d0dd9c9..bc4a7344e274 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "evlist.h"
 #include "evsel.h"
 #include "thread_map.h"
diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h
index 921412a6a880..2862b80bc288 100644
--- a/tools/perf/tests/tests.h
+++ b/tools/perf/tests/tests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef TESTS_H
 #define TESTS_H
 
diff --git a/tools/perf/tests/thread-map.c b/tools/perf/tests/thread-map.c
index b3423c744f46..dbcb6a19b375 100644
--- a/tools/perf/tests/thread-map.c
+++ b/tools/perf/tests/thread-map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <sys/types.h>
 #include <unistd.h>
diff --git a/tools/perf/tests/thread-mg-share.c b/tools/perf/tests/thread-mg-share.c
index b9c7f58db6c4..b1d1bbafe7ae 100644
--- a/tools/perf/tests/thread-mg-share.c
+++ b/tools/perf/tests/thread-mg-share.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "tests.h"
 #include "machine.h"
 #include "thread.h"
diff --git a/tools/perf/tests/topology.c b/tools/perf/tests/topology.c
index 19b0561fd6f6..17cb1bb3448c 100644
--- a/tools/perf/tests/topology.c
+++ b/tools/perf/tests/topology.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
@@ -29,12 +30,14 @@ static int get_temp(char *path)
 static int session_write_header(char *path)
 {
 	struct perf_session *session;
-	struct perf_data_file file = {
-		.path = path,
-		.mode = PERF_DATA_MODE_WRITE,
+	struct perf_data data = {
+		.file      = {
+			.path = path,
+		},
+		.mode      = PERF_DATA_MODE_WRITE,
 	};
 
-	session = perf_session__new(&file, false, NULL);
+	session = perf_session__new(&data, false, NULL);
 	TEST_ASSERT_VAL("can't get session", session);
 
 	session->evlist = perf_evlist__new_default();
@@ -46,7 +49,7 @@ static int session_write_header(char *path)
 	session->header.data_size += DATA_SIZE;
 
 	TEST_ASSERT_VAL("failed to write header",
-			!perf_session__write_header(session, session->evlist, file.fd, true));
+			!perf_session__write_header(session, session->evlist, data.file.fd, true));
 
 	perf_session__delete(session);
 
@@ -56,13 +59,15 @@ static int session_write_header(char *path)
 static int check_cpu_topology(char *path, struct cpu_map *map)
 {
 	struct perf_session *session;
-	struct perf_data_file file = {
-		.path = path,
-		.mode = PERF_DATA_MODE_READ,
+	struct perf_data data = {
+		.file      = {
+			.path = path,
+		},
+		.mode      = PERF_DATA_MODE_READ,
 	};
 	int i;
 
-	session = perf_session__new(&file, false, NULL);
+	session = perf_session__new(&data, false, NULL);
 	TEST_ASSERT_VAL("can't get session", session);
 
 	for (i = 0; i < session->header.env.nr_cpus_avail; i++) {
diff --git a/tools/perf/tests/unit_number__scnprintf.c b/tools/perf/tests/unit_number__scnprintf.c
index 15cd1cf8c129..2bb8cb0039c1 100644
--- a/tools/perf/tests/unit_number__scnprintf.c
+++ b/tools/perf/tests/unit_number__scnprintf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <linux/compiler.h>
 #include <linux/types.h>
diff --git a/tools/perf/tests/vmlinux-kallsyms.c b/tools/perf/tests/vmlinux-kallsyms.c
index 86cb8868f67f..f6789fb029d6 100644
--- a/tools/perf/tests/vmlinux-kallsyms.c
+++ b/tools/perf/tests/vmlinux-kallsyms.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/rbtree.h>
 #include <inttypes.h>
diff --git a/tools/perf/trace/beauty/Build b/tools/perf/trace/beauty/Build
index 175d633c6b49..066bbf0f4a74 100644
--- a/tools/perf/trace/beauty/Build
+++ b/tools/perf/trace/beauty/Build
@@ -3,5 +3,7 @@ libperf-y += fcntl.o
 ifeq ($(SRCARCH),$(filter $(SRCARCH),x86))
 libperf-y += ioctl.o
 endif
+libperf-y += kcmp.o
 libperf-y += pkey_alloc.o
+libperf-y += prctl.o
 libperf-y += statx.o
diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h
index 4b58581a6053..a6dfd04beaee 100644
--- a/tools/perf/trace/beauty/beauty.h
+++ b/tools/perf/trace/beauty/beauty.h
@@ -1,8 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_TRACE_BEAUTY_H
 #define _PERF_TRACE_BEAUTY_H
 
 #include <linux/kernel.h>
 #include <linux/types.h>
+#include <sys/types.h>
 
 struct strarray {
 	int	    offset;
@@ -26,6 +28,8 @@ size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const cha
 struct trace;
 struct thread;
 
+size_t pid__scnprintf_fd(struct trace *trace, pid_t pid, int fd, char *bf, size_t size);
+
 /**
  * @val: value of syscall argument being formatted
  * @args: All the args, use syscall_args__val(arg, nth) to access one
@@ -78,12 +82,27 @@ size_t syscall_arg__scnprintf_fcntl_arg(char *bf, size_t size, struct syscall_ar
 size_t syscall_arg__scnprintf_ioctl_cmd(char *bf, size_t size, struct syscall_arg *arg);
 #define SCA_IOCTL_CMD syscall_arg__scnprintf_ioctl_cmd
 
+size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg);
+#define SCA_KCMP_TYPE syscall_arg__scnprintf_kcmp_type
+
+size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg);
+#define SCA_KCMP_IDX syscall_arg__scnprintf_kcmp_idx
+
 size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg);
 #define SCA_PKEY_ALLOC_ACCESS_RIGHTS syscall_arg__scnprintf_pkey_alloc_access_rights
 
 size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size, struct syscall_arg *arg);
 #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
 
+size_t syscall_arg__scnprintf_prctl_option(char *bf, size_t size, struct syscall_arg *arg);
+#define SCA_PRCTL_OPTION syscall_arg__scnprintf_prctl_option
+
+size_t syscall_arg__scnprintf_prctl_arg2(char *bf, size_t size, struct syscall_arg *arg);
+#define SCA_PRCTL_ARG2 syscall_arg__scnprintf_prctl_arg2
+
+size_t syscall_arg__scnprintf_prctl_arg3(char *bf, size_t size, struct syscall_arg *arg);
+#define SCA_PRCTL_ARG3 syscall_arg__scnprintf_prctl_arg3
+
 size_t syscall_arg__scnprintf_statx_flags(char *bf, size_t size, struct syscall_arg *arg);
 #define SCA_STATX_FLAGS syscall_arg__scnprintf_statx_flags
 
diff --git a/tools/perf/trace/beauty/eventfd.c b/tools/perf/trace/beauty/eventfd.c
index b08f21eb6f4d..5d6a477a6400 100644
--- a/tools/perf/trace/beauty/eventfd.c
+++ b/tools/perf/trace/beauty/eventfd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef EFD_SEMAPHORE
 #define EFD_SEMAPHORE		1
 #endif
diff --git a/tools/perf/trace/beauty/flock.c b/tools/perf/trace/beauty/flock.c
index 74613703a14e..f9707f57566c 100644
--- a/tools/perf/trace/beauty/flock.c
+++ b/tools/perf/trace/beauty/flock.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <fcntl.h>
 
 #ifndef LOCK_MAND
diff --git a/tools/perf/trace/beauty/futex_op.c b/tools/perf/trace/beauty/futex_op.c
index bfd3359b09b6..61850fbc85ff 100644
--- a/tools/perf/trace/beauty/futex_op.c
+++ b/tools/perf/trace/beauty/futex_op.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/futex.h>
 
 #ifndef FUTEX_WAIT_BITSET
diff --git a/tools/perf/trace/beauty/kcmp.c b/tools/perf/trace/beauty/kcmp.c
new file mode 100644
index 000000000000..f62040eb9d5c
--- /dev/null
+++ b/tools/perf/trace/beauty/kcmp.c
@@ -0,0 +1,44 @@
+/*
+ * trace/beauty/kcmp.c
+ *
+ *  Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Released under the GPL v2. (and only v2, not any later version)
+ */
+
+#include "trace/beauty/beauty.h"
+#include <linux/kernel.h>
+#include <sys/types.h>
+#include <machine.h>
+#include <uapi/linux/kcmp.h>
+
+#include "trace/beauty/generated/kcmp_type_array.c"
+
+size_t syscall_arg__scnprintf_kcmp_idx(char *bf, size_t size, struct syscall_arg *arg)
+{
+	unsigned long fd = arg->val;
+	int type = syscall_arg__val(arg, 2);
+	pid_t pid;
+
+	if (type != KCMP_FILE)
+		return syscall_arg__scnprintf_long(bf, size, arg);
+
+	pid = syscall_arg__val(arg, arg->idx == 3 ? 0 : 1); /* idx1 -> pid1, idx2 -> pid2 */
+	return pid__scnprintf_fd(arg->trace, pid, fd, bf, size);
+}
+
+static size_t kcmp__scnprintf_type(int type, char *bf, size_t size)
+{
+	static DEFINE_STRARRAY(kcmp_types);
+	return strarray__scnprintf(&strarray__kcmp_types, bf, size, "%d", type);
+}
+
+size_t syscall_arg__scnprintf_kcmp_type(char *bf, size_t size, struct syscall_arg *arg)
+{
+	unsigned long type = arg->val;
+
+	if (type != KCMP_FILE)
+		arg->mask |= (1 << 3) | (1 << 4); /* Ignore idx1 and idx2 */
+
+	return kcmp__scnprintf_type(type, bf, size);
+}
diff --git a/tools/perf/trace/beauty/kcmp_type.sh b/tools/perf/trace/beauty/kcmp_type.sh
new file mode 100755
index 000000000000..40d063b8c082
--- /dev/null
+++ b/tools/perf/trace/beauty/kcmp_type.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+header_dir=$1
+
+printf "static const char *kcmp_types[] = {\n"
+regex='^[[:space:]]+(KCMP_(\w+)),'
+egrep $regex ${header_dir}/kcmp.h | grep -v KCMP_TYPES, | \
+	sed -r "s/$regex/\1 \2/g" | \
+	xargs printf "\t[%s]\t= \"%s\",\n"
+printf "};\n"
diff --git a/tools/perf/trace/beauty/madvise_behavior.sh b/tools/perf/trace/beauty/madvise_behavior.sh
new file mode 100755
index 000000000000..60ef8640ee70
--- /dev/null
+++ b/tools/perf/trace/beauty/madvise_behavior.sh
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+header_dir=$1
+
+printf "static const char *madvise_advices[] = {\n"
+regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MADV_([[:alnum:]_]+)[[:space:]]+([[:digit:]]+)[[:space:]]*.*'
+egrep $regex ${header_dir}/mman-common.h | \
+	sed -r "s/$regex/\2 \1/g"	| \
+	sort -n | xargs printf "\t[%s] = \"%s\",\n"
+printf "};\n"
diff --git a/tools/perf/trace/beauty/mmap.c b/tools/perf/trace/beauty/mmap.c
index 754558f9009d..9e1668b2c5d7 100644
--- a/tools/perf/trace/beauty/mmap.c
+++ b/tools/perf/trace/beauty/mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <uapi/linux/mman.h>
 
 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
@@ -94,35 +95,21 @@ static size_t syscall_arg__scnprintf_mremap_flags(char *bf, size_t size,
 
 #define SCA_MREMAP_FLAGS syscall_arg__scnprintf_mremap_flags
 
+static size_t madvise__scnprintf_behavior(int behavior, char *bf, size_t size)
+{
+#include "trace/beauty/generated/madvise_behavior_array.c"
+       static DEFINE_STRARRAY(madvise_advices);
+
+       if (behavior < strarray__madvise_advices.nr_entries && strarray__madvise_advices.entries[behavior] != NULL)
+               return scnprintf(bf, size, "MADV_%s", strarray__madvise_advices.entries[behavior]);
+
+       return scnprintf(bf, size, "%#", behavior);
+}
+
 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
 						      struct syscall_arg *arg)
 {
-	int behavior = arg->val;
-
-	switch (behavior) {
-#define	P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
-	P_MADV_BHV(NORMAL);
-	P_MADV_BHV(RANDOM);
-	P_MADV_BHV(SEQUENTIAL);
-	P_MADV_BHV(WILLNEED);
-	P_MADV_BHV(DONTNEED);
-	P_MADV_BHV(FREE);
-	P_MADV_BHV(REMOVE);
-	P_MADV_BHV(DONTFORK);
-	P_MADV_BHV(DOFORK);
-	P_MADV_BHV(HWPOISON);
-	P_MADV_BHV(SOFT_OFFLINE);
-	P_MADV_BHV(MERGEABLE);
-	P_MADV_BHV(UNMERGEABLE);
-	P_MADV_BHV(HUGEPAGE);
-	P_MADV_BHV(NOHUGEPAGE);
-	P_MADV_BHV(DONTDUMP);
-	P_MADV_BHV(DODUMP);
-#undef P_MADV_BHV
-	default: break;
-	}
-
-	return scnprintf(bf, size, "%#x", behavior);
+	return madvise__scnprintf_behavior(arg->val, bf, size);
 }
 
 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
diff --git a/tools/perf/trace/beauty/mode_t.c b/tools/perf/trace/beauty/mode_t.c
index 930d8fef2400..d929ad7dd97b 100644
--- a/tools/perf/trace/beauty/mode_t.c
+++ b/tools/perf/trace/beauty/mode_t.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <unistd.h>
diff --git a/tools/perf/trace/beauty/msg_flags.c b/tools/perf/trace/beauty/msg_flags.c
index 1106c8960cc4..c064d6aae659 100644
--- a/tools/perf/trace/beauty/msg_flags.c
+++ b/tools/perf/trace/beauty/msg_flags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <sys/socket.h>
 
diff --git a/tools/perf/trace/beauty/open_flags.c b/tools/perf/trace/beauty/open_flags.c
index e359e041dc0e..6aec6178a99d 100644
--- a/tools/perf/trace/beauty/open_flags.c
+++ b/tools/perf/trace/beauty/open_flags.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
diff --git a/tools/perf/trace/beauty/perf_event_open.c b/tools/perf/trace/beauty/perf_event_open.c
index 311f09dd718d..2bafd7c995ff 100644
--- a/tools/perf/trace/beauty/perf_event_open.c
+++ b/tools/perf/trace/beauty/perf_event_open.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef PERF_FLAG_FD_NO_GROUP
 # define PERF_FLAG_FD_NO_GROUP		(1UL << 0)
 #endif
diff --git a/tools/perf/trace/beauty/pid.c b/tools/perf/trace/beauty/pid.c
index b6d419e16dcf..0313df342830 100644
--- a/tools/perf/trace/beauty/pid.c
+++ b/tools/perf/trace/beauty/pid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 size_t syscall_arg__scnprintf_pid(char *bf, size_t size, struct syscall_arg *arg)
 {
 	int pid = arg->val;
diff --git a/tools/perf/trace/beauty/prctl.c b/tools/perf/trace/beauty/prctl.c
new file mode 100644
index 000000000000..246130dad6c4
--- /dev/null
+++ b/tools/perf/trace/beauty/prctl.c
@@ -0,0 +1,82 @@
+/*
+ * trace/beauty/prctl.c
+ *
+ *  Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Released under the GPL v2. (and only v2, not any later version)
+ */
+
+#include "trace/beauty/beauty.h"
+#include <linux/kernel.h>
+#include <uapi/linux/prctl.h>
+
+#include "trace/beauty/generated/prctl_option_array.c"
+
+static size_t prctl__scnprintf_option(int option, char *bf, size_t size)
+{
+	static DEFINE_STRARRAY(prctl_options);
+	return strarray__scnprintf(&strarray__prctl_options, bf, size, "%d", option);
+}
+
+static size_t prctl__scnprintf_set_mm(int option, char *bf, size_t size)
+{
+	static DEFINE_STRARRAY(prctl_set_mm_options);
+	return strarray__scnprintf(&strarray__prctl_set_mm_options, bf, size, "%d", option);
+}
+
+size_t syscall_arg__scnprintf_prctl_arg2(char *bf, size_t size, struct syscall_arg *arg)
+{
+	int option = syscall_arg__val(arg, 0);
+
+	if (option == PR_SET_MM)
+		return prctl__scnprintf_set_mm(arg->val, bf, size);
+	/*
+	 * We still don't grab the contents of pointers on entry or exit,
+	 * so just print them as hex numbers
+	 */
+	if (option == PR_SET_NAME)
+		return syscall_arg__scnprintf_hex(bf, size, arg);
+
+	return syscall_arg__scnprintf_long(bf, size, arg);
+}
+
+size_t syscall_arg__scnprintf_prctl_arg3(char *bf, size_t size, struct syscall_arg *arg)
+{
+	int option = syscall_arg__val(arg, 0);
+
+	if (option == PR_SET_MM)
+		return syscall_arg__scnprintf_hex(bf, size, arg);
+
+	return syscall_arg__scnprintf_long(bf, size, arg);
+}
+
+size_t syscall_arg__scnprintf_prctl_option(char *bf, size_t size, struct syscall_arg *arg)
+{
+	unsigned long option = arg->val;
+	enum {
+                SPO_ARG2 = (1 << 1),
+                SPO_ARG3 = (1 << 2),
+                SPO_ARG4 = (1 << 3),
+                SPO_ARG5 = (1 << 4),
+                SPO_ARG6 = (1 << 5),
+        };
+	const u8 all_but2 = SPO_ARG3 | SPO_ARG4 | SPO_ARG5 | SPO_ARG6;
+	const u8 all = SPO_ARG2 | all_but2;
+	const u8 masks[] = {
+		[PR_GET_DUMPABLE]	 = all,
+		[PR_SET_DUMPABLE]	 = all_but2,
+		[PR_SET_NAME]		 = all_but2,
+		[PR_GET_CHILD_SUBREAPER] = all_but2,
+		[PR_SET_CHILD_SUBREAPER] = all_but2,
+		[PR_GET_SECUREBITS]	 = all,
+		[PR_SET_SECUREBITS]	 = all_but2,
+		[PR_SET_MM]		 = SPO_ARG4 | SPO_ARG5 | SPO_ARG6,
+		[PR_GET_PDEATHSIG]	 = all,
+		[PR_SET_PDEATHSIG]	 = all_but2,
+	};
+
+	if (option < ARRAY_SIZE(masks))
+		arg->mask |= masks[option];
+
+	return prctl__scnprintf_option(option, bf, size);
+}
diff --git a/tools/perf/trace/beauty/prctl_option.sh b/tools/perf/trace/beauty/prctl_option.sh
new file mode 100755
index 000000000000..0be4138fbe71
--- /dev/null
+++ b/tools/perf/trace/beauty/prctl_option.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+header_dir=$1
+
+printf "static const char *prctl_options[] = {\n"
+regex='^#define[[:space:]]+PR_([GS]ET\w+)[[:space:]]*([[:xdigit:]]+).*'
+egrep $regex ${header_dir}/prctl.h | grep -v PR_SET_PTRACER | \
+	sed -r "s/$regex/\2 \1/g"	| \
+	sort -n | xargs printf "\t[%s] = \"%s\",\n"
+printf "};\n"
+
+printf "static const char *prctl_set_mm_options[] = {\n"
+regex='^#[[:space:]]+define[[:space:]]+PR_SET_MM_(\w+)[[:space:]]*([[:digit:]]+).*'
+egrep $regex ${header_dir}/prctl.h | \
+	sed -r "s/$regex/\2 \1/g"	| \
+	sort -n | xargs printf "\t[%s] = \"%s\",\n"
+printf "};\n"
diff --git a/tools/perf/trace/beauty/sched_policy.c b/tools/perf/trace/beauty/sched_policy.c
index 34775295b9b3..ba5096ae76b6 100644
--- a/tools/perf/trace/beauty/sched_policy.c
+++ b/tools/perf/trace/beauty/sched_policy.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sched.h>
 
 /*
diff --git a/tools/perf/trace/beauty/seccomp.c b/tools/perf/trace/beauty/seccomp.c
index 356441bce27d..b7097fd5fed9 100644
--- a/tools/perf/trace/beauty/seccomp.c
+++ b/tools/perf/trace/beauty/seccomp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #ifndef SECCOMP_SET_MODE_STRICT
 #define SECCOMP_SET_MODE_STRICT 0
 #endif
diff --git a/tools/perf/trace/beauty/signum.c b/tools/perf/trace/beauty/signum.c
index fde8f2fc6558..bde18a53f090 100644
--- a/tools/perf/trace/beauty/signum.c
+++ b/tools/perf/trace/beauty/signum.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <signal.h>
 
 static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
diff --git a/tools/perf/trace/beauty/socket_type.c b/tools/perf/trace/beauty/socket_type.c
index 0a5ce818131c..bca26aef4a77 100644
--- a/tools/perf/trace/beauty/socket_type.c
+++ b/tools/perf/trace/beauty/socket_type.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <sys/socket.h>
 
diff --git a/tools/perf/trace/beauty/waitid_options.c b/tools/perf/trace/beauty/waitid_options.c
index 7942724adec8..8465281a093d 100644
--- a/tools/perf/trace/beauty/waitid_options.c
+++ b/tools/perf/trace/beauty/waitid_options.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <sys/wait.h>
 
diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index d0c2007c307b..63399af3049f 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../util.h"
 #include "../string2.h"
 #include "../config.h"
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index a12eff75638b..03e1734412b9 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_BROWSER_H_
 #define _PERF_UI_BROWSER_H_ 1
 
diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 786fecaf578e..8f7f59d1a2b5 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../../util/util.h"
 #include "../browser.h"
 #include "../helpline.h"
diff --git a/tools/perf/ui/browsers/header.c b/tools/perf/ui/browsers/header.c
index e2c9390ff4c5..d75492189acb 100644
--- a/tools/perf/ui/browsers/header.c
+++ b/tools/perf/ui/browsers/header.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util/cache.h"
 #include "util/debug.h"
 #include "ui/browser.h"
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 13dfb0a0bdeb..68146f4620a5 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dirent.h>
 #include <errno.h>
 #include <inttypes.h>
@@ -154,57 +155,9 @@ static void callchain_list__set_folding(struct callchain_list *cl, bool unfold)
 	cl->unfolded = unfold ? cl->has_children : false;
 }
 
-static struct inline_node *inline_node__create(struct map *map, u64 ip)
-{
-	struct dso *dso;
-	struct inline_node *node;
-
-	if (map == NULL)
-		return NULL;
-
-	dso = map->dso;
-	if (dso == NULL)
-		return NULL;
-
-	node = dso__parse_addr_inlines(dso,
-				       map__rip_2objdump(map, ip));
-
-	return node;
-}
-
-static int inline__count_rows(struct inline_node *node)
-{
-	struct inline_list *ilist;
-	int i = 0;
-
-	if (node == NULL)
-		return 0;
-
-	list_for_each_entry(ilist, &node->val, list) {
-		if ((ilist->filename != NULL) || (ilist->funcname != NULL))
-			i++;
-	}
-
-	return i;
-}
-
-static int callchain_list__inline_rows(struct callchain_list *chain)
-{
-	struct inline_node *node;
-	int rows;
-
-	node = inline_node__create(chain->ms.map, chain->ip);
-	if (node == NULL)
-		return 0;
-
-	rows = inline__count_rows(node);
-	inline_node__delete(node);
-	return rows;
-}
-
 static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
 {
-	int n = 0, inline_rows;
+	int n = 0;
 	struct rb_node *nd;
 
 	for (nd = rb_first(&node->rb_root); nd; nd = rb_next(nd)) {
@@ -215,12 +168,6 @@ static int callchain_node__count_rows_rb_tree(struct callchain_node *node)
 		list_for_each_entry(chain, &child->val, list) {
 			++n;
 
-			if (symbol_conf.inline_name) {
-				inline_rows =
-					callchain_list__inline_rows(chain);
-				n += inline_rows;
-			}
-
 			/* We need this because we may not have children */
 			folded_sign = callchain_list__folded(chain);
 			if (folded_sign == '+')
@@ -272,7 +219,7 @@ static int callchain_node__count_rows(struct callchain_node *node)
 {
 	struct callchain_list *chain;
 	bool unfolded = false;
-	int n = 0, inline_rows;
+	int n = 0;
 
 	if (callchain_param.mode == CHAIN_FLAT)
 		return callchain_node__count_flat_rows(node);
@@ -281,10 +228,6 @@ static int callchain_node__count_rows(struct callchain_node *node)
 
 	list_for_each_entry(chain, &node->val, list) {
 		++n;
-		if (symbol_conf.inline_name) {
-			inline_rows = callchain_list__inline_rows(chain);
-			n += inline_rows;
-		}
 
 		unfolded = chain->unfolded;
 	}
@@ -432,19 +375,6 @@ static void hist_entry__init_have_children(struct hist_entry *he)
 	he->init_have_children = true;
 }
 
-static void hist_entry_init_inline_node(struct hist_entry *he)
-{
-	if (he->inline_node)
-		return;
-
-	he->inline_node = inline_node__create(he->ms.map, he->ip);
-
-	if (he->inline_node == NULL)
-		return;
-
-	he->has_children = true;
-}
-
 static bool hist_browser__toggle_fold(struct hist_browser *browser)
 {
 	struct hist_entry *he = browser->he_selection;
@@ -476,12 +406,8 @@ static bool hist_browser__toggle_fold(struct hist_browser *browser)
 
 		if (he->unfolded) {
 			if (he->leaf)
-				if (he->inline_node)
-					he->nr_rows = inline__count_rows(
-							he->inline_node);
-				else
-					he->nr_rows = callchain__count_rows(
-							&he->sorted_chain);
+				he->nr_rows = callchain__count_rows(
+						&he->sorted_chain);
 			else
 				he->nr_rows = hierarchy_count_rows(browser, he, false);
 
@@ -841,71 +767,6 @@ static bool hist_browser__check_dump_full(struct hist_browser *browser __maybe_u
 
 #define LEVEL_OFFSET_STEP 3
 
-static int hist_browser__show_inline(struct hist_browser *browser,
-				     struct inline_node *node,
-				     unsigned short row,
-				     int offset)
-{
-	struct inline_list *ilist;
-	char buf[1024];
-	int color, width, first_row;
-
-	first_row = row;
-	width = browser->b.width - (LEVEL_OFFSET_STEP + 2);
-	list_for_each_entry(ilist, &node->val, list) {
-		if ((ilist->filename != NULL) || (ilist->funcname != NULL)) {
-			color = HE_COLORSET_NORMAL;
-			if (ui_browser__is_current_entry(&browser->b, row))
-				color = HE_COLORSET_SELECTED;
-
-			if (callchain_param.key == CCKEY_ADDRESS ||
-			    callchain_param.key == CCKEY_SRCLINE) {
-				if (ilist->filename != NULL)
-					scnprintf(buf, sizeof(buf),
-						  "%s:%d (inline)",
-						  ilist->filename,
-						  ilist->line_nr);
-				else
-					scnprintf(buf, sizeof(buf), "??");
-			} else if (ilist->funcname != NULL)
-				scnprintf(buf, sizeof(buf), "%s (inline)",
-					  ilist->funcname);
-			else if (ilist->filename != NULL)
-				scnprintf(buf, sizeof(buf),
-					  "%s:%d (inline)",
-					  ilist->filename,
-					  ilist->line_nr);
-			else
-				scnprintf(buf, sizeof(buf), "??");
-
-			ui_browser__set_color(&browser->b, color);
-			hist_browser__gotorc(browser, row, 0);
-			ui_browser__write_nstring(&browser->b, " ",
-				LEVEL_OFFSET_STEP + offset);
-			ui_browser__write_nstring(&browser->b, buf, width);
-			row++;
-		}
-	}
-
-	return row - first_row;
-}
-
-static size_t show_inline_list(struct hist_browser *browser, struct map *map,
-			       u64 ip, int row, int offset)
-{
-	struct inline_node *node;
-	int ret;
-
-	node = inline_node__create(map, ip);
-	if (node == NULL)
-		return 0;
-
-	ret = hist_browser__show_inline(browser, node, row, offset);
-
-	inline_node__delete(node);
-	return ret;
-}
-
 static int hist_browser__show_callchain_list(struct hist_browser *browser,
 					     struct callchain_node *node,
 					     struct callchain_list *chain,
@@ -917,7 +778,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 	char bf[1024], *alloc_str;
 	char buf[64], *alloc_str2;
 	const char *str;
-	int inline_rows = 0, ret = 1;
+	int ret = 1;
 
 	if (arg->row_offset != 0) {
 		arg->row_offset--;
@@ -954,12 +815,7 @@ static int hist_browser__show_callchain_list(struct hist_browser *browser,
 	free(alloc_str);
 	free(alloc_str2);
 
-	if (symbol_conf.inline_name) {
-		inline_rows = show_inline_list(browser, chain->ms.map,
-					       chain->ip, row + 1, offset);
-	}
-
-	return ret + inline_rows;
+	return ret;
 }
 
 static bool check_percent_display(struct rb_node *node, u64 parent_total)
@@ -1383,12 +1239,6 @@ static int hist_browser__show_entry(struct hist_browser *browser,
 		folded_sign = hist_entry__folded(entry);
 	}
 
-	if (symbol_conf.inline_name &&
-	    (!entry->has_children)) {
-		hist_entry_init_inline_node(entry);
-		folded_sign = hist_entry__folded(entry);
-	}
-
 	if (row_offset == 0) {
 		struct hpp_arg arg = {
 			.b		= &browser->b,
@@ -1420,8 +1270,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
 			}
 
 			if (first) {
-				if (symbol_conf.use_callchain ||
-					symbol_conf.inline_name) {
+				if (symbol_conf.use_callchain) {
 					ui_browser__printf(&browser->b, "%c ", folded_sign);
 					width -= 2;
 				}
@@ -1463,15 +1312,11 @@ static int hist_browser__show_entry(struct hist_browser *browser,
 			.is_current_entry = current_entry,
 		};
 
-		if (entry->inline_node)
-			printed += hist_browser__show_inline(browser,
-					entry->inline_node, row, 0);
-		else
-			printed += hist_browser__show_callchain(browser,
-					entry, 1, row,
-					hist_browser__show_callchain_entry,
-					&arg,
-					hist_browser__check_output_full);
+		printed += hist_browser__show_callchain(browser,
+				entry, 1, row,
+				hist_browser__show_callchain_entry,
+				&arg,
+				hist_browser__check_output_full);
 	}
 
 	return printed;
diff --git a/tools/perf/ui/browsers/hists.h b/tools/perf/ui/browsers/hists.h
index 23d6acb84800..ba431777f559 100644
--- a/tools/perf/ui/browsers/hists.h
+++ b/tools/perf/ui/browsers/hists.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_BROWSER_HISTS_H_
 #define _PERF_UI_BROWSER_HISTS_H_ 1
 
diff --git a/tools/perf/ui/browsers/map.c b/tools/perf/ui/browsers/map.c
index ffa5addf631d..e03fa75f108a 100644
--- a/tools/perf/ui/browsers/map.c
+++ b/tools/perf/ui/browsers/map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <elf.h>
 #include <inttypes.h>
 #include <sys/ttydefaults.h>
diff --git a/tools/perf/ui/browsers/map.h b/tools/perf/ui/browsers/map.h
index 2d58e4b3eb6f..0ed7dbb3a373 100644
--- a/tools/perf/ui/browsers/map.h
+++ b/tools/perf/ui/browsers/map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_MAP_BROWSER_H_
 #define _PERF_UI_MAP_BROWSER_H_ 1
 struct map;
diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c
index ad6b6ee3770e..90a32ac69e76 100644
--- a/tools/perf/ui/browsers/scripts.c
+++ b/tools/perf/ui/browsers/scripts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <elf.h>
 #include <inttypes.h>
 #include <sys/ttydefaults.h>
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index 02176193f427..fc7a2e105bfd 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "gtk.h"
 #include "util/debug.h"
 #include "util/annotate.h"
diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index c24d91221290..4820e25ac68d 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../evlist.h"
 #include "../cache.h"
 #include "../evsel.h"
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 0a9173ff9a61..9846ea5c831b 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_GTK_H_
 #define _PERF_GTK_H_ 1
 
diff --git a/tools/perf/ui/gtk/helpline.c b/tools/perf/ui/gtk/helpline.c
index 3388cbd12186..fbf1ea9ce9a2 100644
--- a/tools/perf/ui/gtk/helpline.c
+++ b/tools/perf/ui/gtk/helpline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <string.h>
 
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index e24f83957705..24e1ec201ffd 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../evlist.h"
 #include "../cache.h"
 #include "../evsel.h"
diff --git a/tools/perf/ui/gtk/progress.c b/tools/perf/ui/gtk/progress.c
index b656655fbc39..b6ad8857da78 100644
--- a/tools/perf/ui/gtk/progress.c
+++ b/tools/perf/ui/gtk/progress.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 
 #include "gtk.h"
diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index 1d57676f8212..506e73b3834c 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "gtk.h"
 #include "../../util/cache.h"
 #include "../../util/debug.h"
diff --git a/tools/perf/ui/gtk/util.c b/tools/perf/ui/gtk/util.c
index 00b91921edb1..7250d8101c8f 100644
--- a/tools/perf/ui/gtk/util.c
+++ b/tools/perf/ui/gtk/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../util.h"
 #include "../../util/util.h"
 #include "../../util/debug.h"
diff --git a/tools/perf/ui/helpline.c b/tools/perf/ui/helpline.c
index 379039ab00d8..b3c421429ed4 100644
--- a/tools/perf/ui/helpline.c
+++ b/tools/perf/ui/helpline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/perf/ui/helpline.h b/tools/perf/ui/helpline.h
index d52d0a1a881b..8f775a053ca3 100644
--- a/tools/perf/ui/helpline.h
+++ b/tools/perf/ui/helpline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_HELPLINE_H_
 #define _PERF_UI_HELPLINE_H_ 1
 
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index ddb2c6fbdf91..706f6f1e9c7d 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <math.h>
 #include <linux/compiler.h>
@@ -532,7 +533,7 @@ void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
 
 void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
 {
-	list_del(&format->list);
+	list_del_init(&format->list);
 }
 
 void perf_hpp__cancel_cumulate(void)
@@ -606,6 +607,13 @@ next:
 
 static void fmt_free(struct perf_hpp_fmt *fmt)
 {
+	/*
+	 * At this point fmt should be completely
+	 * unhooked, if not it's a bug.
+	 */
+	BUG_ON(!list_empty(&fmt->list));
+	BUG_ON(!list_empty(&fmt->sort_list));
+
 	if (fmt->free)
 		fmt->free(fmt);
 }
diff --git a/tools/perf/ui/keysyms.h b/tools/perf/ui/keysyms.h
index 65092d576b4e..fbfac29077f2 100644
--- a/tools/perf/ui/keysyms.h
+++ b/tools/perf/ui/keysyms.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_KEYSYMS_H_
 #define _PERF_KEYSYMS_H_ 1
 
diff --git a/tools/perf/ui/libslang.h b/tools/perf/ui/libslang.h
index db816695ad97..c0686cda39a5 100644
--- a/tools/perf/ui/libslang.h
+++ b/tools/perf/ui/libslang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_SLANG_H_
 #define _PERF_UI_SLANG_H_ 1
 /*
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index a0f24c7115c5..bbfbc91a0fa4 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/kernel.h>
 #include "../cache.h"
 #include "progress.h"
 
@@ -14,21 +16,29 @@ struct ui_progress_ops *ui_progress__ops = &null_progress__ops;
 
 void ui_progress__update(struct ui_progress *p, u64 adv)
 {
+	u64 last = p->curr;
+
 	p->curr += adv;
 
 	if (p->curr >= p->next) {
-		p->next += p->step;
+		u64 nr = DIV_ROUND_UP(p->curr - last, p->step);
+
+		p->next += nr * p->step;
 		ui_progress__ops->update(p);
 	}
 }
 
-void ui_progress__init(struct ui_progress *p, u64 total, const char *title)
+void __ui_progress__init(struct ui_progress *p, u64 total,
+			 const char *title, bool size)
 {
 	p->curr = 0;
-	p->next = p->step = total / 16;
+	p->next = p->step = total / 16 ?: 1;
 	p->total = total;
 	p->title = title;
+	p->size  = size;
 
+	if (ui_progress__ops->init)
+		ui_progress__ops->init(p);
 }
 
 void ui_progress__finish(void)
diff --git a/tools/perf/ui/progress.h b/tools/perf/ui/progress.h
index 717d39d3052b..4f52c37b2f09 100644
--- a/tools/perf/ui/progress.h
+++ b/tools/perf/ui/progress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_PROGRESS_H_
 #define _PERF_UI_PROGRESS_H_ 1
 
@@ -8,12 +9,22 @@ void ui_progress__finish(void);
 struct ui_progress {
 	const char *title;
 	u64 curr, next, step, total;
+	bool size;
 };
 
-void ui_progress__init(struct ui_progress *p, u64 total, const char *title);
+void __ui_progress__init(struct ui_progress *p, u64 total,
+			 const char *title, bool size);
+
+#define ui_progress__init(p, total, title) \
+	__ui_progress__init(p, total, title, false)
+
+#define ui_progress__init_size(p, total, title) \
+	__ui_progress__init(p, total, title, true)
+
 void ui_progress__update(struct ui_progress *p, u64 adv);
 
 struct ui_progress_ops {
+	void (*init)(struct ui_progress *p);
 	void (*update)(struct ui_progress *p);
 	void (*finish)(void);
 };
diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c
index caf1ce6f5152..44fe824e96cd 100644
--- a/tools/perf/ui/setup.c
+++ b/tools/perf/ui/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <pthread.h>
 #include <dlfcn.h>
 
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 8bdb7a500181..25dd1e0ecc58 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <linux/string.h>
 
@@ -21,64 +22,6 @@ static size_t callchain__fprintf_left_margin(FILE *fp, int left_margin)
 	return ret;
 }
 
-static size_t inline__fprintf(struct map *map, u64 ip, int left_margin,
-			      int depth, int depth_mask, FILE *fp)
-{
-	struct dso *dso;
-	struct inline_node *node;
-	struct inline_list *ilist;
-	int ret = 0, i;
-
-	if (map == NULL)
-		return 0;
-
-	dso = map->dso;
-	if (dso == NULL)
-		return 0;
-
-	node = dso__parse_addr_inlines(dso,
-				       map__rip_2objdump(map, ip));
-	if (node == NULL)
-		return 0;
-
-	list_for_each_entry(ilist, &node->val, list) {
-		if ((ilist->filename != NULL) || (ilist->funcname != NULL)) {
-			ret += callchain__fprintf_left_margin(fp, left_margin);
-
-			for (i = 0; i < depth; i++) {
-				if (depth_mask & (1 << i))
-					ret += fprintf(fp, "|");
-				else
-					ret += fprintf(fp, " ");
-				ret += fprintf(fp, "          ");
-			}
-
-			if (callchain_param.key == CCKEY_ADDRESS ||
-			    callchain_param.key == CCKEY_SRCLINE) {
-				if (ilist->filename != NULL)
-					ret += fprintf(fp, "%s:%d (inline)",
-						       ilist->filename,
-						       ilist->line_nr);
-				else
-					ret += fprintf(fp, "??");
-			} else if (ilist->funcname != NULL)
-				ret += fprintf(fp, "%s (inline)",
-					       ilist->funcname);
-			else if (ilist->filename != NULL)
-				ret += fprintf(fp, "%s:%d (inline)",
-					       ilist->filename,
-					       ilist->line_nr);
-			else
-				ret += fprintf(fp, "??");
-
-			ret += fprintf(fp, "\n");
-		}
-	}
-
-	inline_node__delete(node);
-	return ret;
-}
-
 static size_t ipchain__fprintf_graph_line(FILE *fp, int depth, int depth_mask,
 					  int left_margin)
 {
@@ -137,9 +80,6 @@ static size_t ipchain__fprintf_graph(FILE *fp, struct callchain_node *node,
 	fputc('\n', fp);
 	free(alloc_str);
 
-	if (symbol_conf.inline_name)
-		ret += inline__fprintf(chain->ms.map, chain->ip,
-				       left_margin, depth, depth_mask, fp);
 	return ret;
 }
 
@@ -314,13 +254,6 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
 
 			if (++entries_printed == callchain_param.print_limit)
 				break;
-
-			if (symbol_conf.inline_name)
-				ret += inline__fprintf(chain->ms.map,
-						       chain->ip,
-						       left_margin,
-						       0, 0,
-						       fp);
 		}
 		root = &cnode->rb_root;
 	}
@@ -600,7 +533,6 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
 {
 	int ret;
 	int callchain_ret = 0;
-	int inline_ret = 0;
 	struct perf_hpp hpp = {
 		.buf		= bf,
 		.size		= size,
@@ -622,13 +554,7 @@ static int hist_entry__fprintf(struct hist_entry *he, size_t size,
 		callchain_ret = hist_entry_callchain__fprintf(he, total_period,
 							      0, fp);
 
-	if (callchain_ret == 0 && symbol_conf.inline_name) {
-		inline_ret = inline__fprintf(he->ms.map, he->ip, 0, 0, 0, fp);
-		ret += inline_ret;
-		if (inline_ret > 0)
-			ret += fprintf(fp, "\n");
-	} else
-		ret += callchain_ret;
+	ret += callchain_ret;
 
 	return ret;
 }
diff --git a/tools/perf/ui/tui/helpline.c b/tools/perf/ui/tui/helpline.c
index 88f5143a5981..4ca799aadb4e 100644
--- a/tools/perf/ui/tui/helpline.c
+++ b/tools/perf/ui/tui/helpline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/perf/ui/tui/progress.c b/tools/perf/ui/tui/progress.c
index c4b99008e2c9..bc134b82829d 100644
--- a/tools/perf/ui/tui/progress.c
+++ b/tools/perf/ui/tui/progress.c
@@ -1,12 +1,34 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/kernel.h>
 #include "../cache.h"
 #include "../progress.h"
 #include "../libslang.h"
 #include "../ui.h"
 #include "tui.h"
+#include "units.h"
 #include "../browser.h"
 
+static void __tui_progress__init(struct ui_progress *p)
+{
+	p->next = p->step = p->total / (SLtt_Screen_Cols - 2) ?: 1;
+}
+
+static int get_title(struct ui_progress *p, char *buf, size_t size)
+{
+	char buf_cur[20];
+	char buf_tot[20];
+	int ret;
+
+	ret  = unit_number__scnprintf(buf_cur, sizeof(buf_cur), p->curr);
+	ret += unit_number__scnprintf(buf_tot, sizeof(buf_tot), p->total);
+
+	return ret + scnprintf(buf, size, "%s [%s/%s]",
+			       p->title, buf_cur, buf_tot);
+}
+
 static void tui_progress__update(struct ui_progress *p)
 {
+	char buf[100], *title = (char *) p->title;
 	int bar, y;
 	/*
 	 * FIXME: We should have a per UI backend way of showing progress,
@@ -18,13 +40,18 @@ static void tui_progress__update(struct ui_progress *p)
 	if (p->total == 0)
 		return;
 
+	if (p->size) {
+		get_title(p, buf, sizeof(buf));
+		title = buf;
+	}
+
 	ui__refresh_dimensions(false);
 	pthread_mutex_lock(&ui__lock);
 	y = SLtt_Screen_Rows / 2 - 2;
 	SLsmg_set_color(0);
 	SLsmg_draw_box(y, 0, 3, SLtt_Screen_Cols);
 	SLsmg_gotorc(y++, 1);
-	SLsmg_write_string((char *)p->title);
+	SLsmg_write_string(title);
 	SLsmg_fill_region(y, 1, 1, SLtt_Screen_Cols - 2, ' ');
 	SLsmg_set_color(HE_COLORSET_SELECTED);
 	bar = ((SLtt_Screen_Cols - 2) * p->curr) / p->total;
@@ -49,8 +76,8 @@ static void tui_progress__finish(void)
 	pthread_mutex_unlock(&ui__lock);
 }
 
-static struct ui_progress_ops tui_progress__ops =
-{
+static struct ui_progress_ops tui_progress__ops = {
+	.init   = __tui_progress__init,
 	.update = tui_progress__update,
 	.finish = tui_progress__finish,
 };
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c
index d9350a1da48b..d4ac41679721 100644
--- a/tools/perf/ui/tui/setup.c
+++ b/tools/perf/ui/tui/setup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <signal.h>
 #include <stdbool.h>
diff --git a/tools/perf/ui/tui/tui.h b/tools/perf/ui/tui/tui.h
index 18961c7b6ec5..8de06f634c56 100644
--- a/tools/perf/ui/tui/tui.h
+++ b/tools/perf/ui/tui/tui.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_TUI_H_
 #define _PERF_TUI_H_ 1
 
diff --git a/tools/perf/ui/tui/util.c b/tools/perf/ui/tui/util.c
index d96ad7c8325d..b9794d6185af 100644
--- a/tools/perf/ui/tui/util.c
+++ b/tools/perf/ui/tui/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../../util/util.h"
 #include <signal.h>
 #include <stdbool.h>
diff --git a/tools/perf/ui/ui.h b/tools/perf/ui/ui.h
index 4b6fb6c7a542..9b6fdf06e1d2 100644
--- a/tools/perf/ui/ui.h
+++ b/tools/perf/ui/ui.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_H_
 #define _PERF_UI_H_ 1
 
diff --git a/tools/perf/ui/util.c b/tools/perf/ui/util.c
index e3e0a963d03a..63bf06e80ab9 100644
--- a/tools/perf/ui/util.c
+++ b/tools/perf/ui/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util.h"
 #include "../debug.h"
 
diff --git a/tools/perf/ui/util.h b/tools/perf/ui/util.h
index 361f08c52d37..5e44223b56fa 100644
--- a/tools/perf/ui/util.h
+++ b/tools/perf/ui/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UI_UTIL_H_
 #define _PERF_UI_UTIL_H_ 1
 
diff --git a/tools/perf/util/Build b/tools/perf/util/Build
index 94518c1bf8b6..a3de7916fe63 100644
--- a/tools/perf/util/Build
+++ b/tools/perf/util/Build
@@ -13,6 +13,7 @@ libperf-y += find_bit.o
 libperf-y += kallsyms.o
 libperf-y += levenshtein.o
 libperf-y += llvm-utils.o
+libperf-y += mmap.o
 libperf-y += memswap.o
 libperf-y += parse-events.o
 libperf-y += perf_regs.o
@@ -34,6 +35,7 @@ libperf-y += dso.o
 libperf-y += symbol.o
 libperf-y += symbol_fprintf.o
 libperf-y += color.o
+libperf-y += metricgroup.o
 libperf-y += header.o
 libperf-y += callchain.o
 libperf-y += values.o
@@ -78,6 +80,7 @@ libperf-y += data.o
 libperf-y += tsc.o
 libperf-y += cloexec.o
 libperf-y += call-path.o
+libperf-y += rwsem.o
 libperf-y += thread-stack.o
 libperf-$(CONFIG_AUXTRACE) += auxtrace.o
 libperf-$(CONFIG_AUXTRACE) += intel-pt-decoder/
diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 39f17507578d..3802cee5e188 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if [ $# -eq 1 ]  ; then
 	OUTPUT=$1
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 4397a8b6e6cd..da1c4c4a0dd8 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -49,10 +49,9 @@ struct arch {
 	void		*priv;
 	unsigned int	model;
 	unsigned int	family;
-	int		(*init)(struct arch *arch);
+	int		(*init)(struct arch *arch, char *cpuid);
 	bool		(*ins_is_fused)(struct arch *arch, const char *ins1,
 					const char *ins2);
-	int		(*cpuid_parse)(struct arch *arch, char *cpuid);
 	struct		{
 		char comment_char;
 		char skip_functions_char;
@@ -132,10 +131,10 @@ static struct arch architectures[] = {
 	},
 	{
 		.name = "x86",
+		.init = x86__annotate_init,
 		.instructions = x86__instructions,
 		.nr_instructions = ARRAY_SIZE(x86__instructions),
 		.ins_is_fused = x86__ins_is_fused,
-		.cpuid_parse = x86__cpuid_parse,
 		.objdump =  {
 			.comment_char = '#',
 		},
@@ -606,9 +605,19 @@ static struct arch *arch__find(const char *name)
 int symbol__alloc_hist(struct symbol *sym)
 {
 	struct annotation *notes = symbol__annotation(sym);
-	const size_t size = symbol__size(sym);
+	size_t size = symbol__size(sym);
 	size_t sizeof_sym_hist;
 
+	/*
+	 * Add buffer of one element for zero length symbol.
+	 * When sample is taken from first instruction of
+	 * zero length symbol, perf still resolves it and
+	 * shows symbol name in perf report and allows to
+	 * annotate it.
+	 */
+	if (size == 0)
+		size = 1;
+
 	/* Check for overflow when calculating sizeof_sym_hist */
 	if (size > (SIZE_MAX - sizeof(struct sym_hist)) / sizeof(struct sym_hist_entry))
 		return -1;
@@ -1447,16 +1456,13 @@ int symbol__disassemble(struct symbol *sym, struct map *map,
 		*parch = arch;
 
 	if (arch->init) {
-		err = arch->init(arch);
+		err = arch->init(arch, cpuid);
 		if (err) {
 			pr_err("%s: failed to initialize %s arch priv area\n", __func__, arch->name);
 			return err;
 		}
 	}
 
-	if (arch->cpuid_parse && cpuid)
-		arch->cpuid_parse(arch, cpuid);
-
 	pr_debug("%s: filename=%s, sym=%s, start=%#" PRIx64 ", end=%#" PRIx64 "\n", __func__,
 		 symfs_filename, sym->name, map->unmap_ip(map, sym->start),
 		 map->unmap_ip(map, sym->end));
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index 9ce575c25fd9..f6ba3560de5e 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_ANNOTATE_H
 #define __PERF_ANNOTATE_H
 
diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c
index 5547457566a7..a33491416400 100644
--- a/tools/perf/util/auxtrace.c
+++ b/tools/perf/util/auxtrace.c
@@ -208,7 +208,7 @@ static int auxtrace_queues__grow(struct auxtrace_queues *queues,
 
 static void *auxtrace_copy_data(u64 size, struct perf_session *session)
 {
-	int fd = perf_data_file__fd(session->file);
+	int fd = perf_data__fd(session->data);
 	void *p;
 	ssize_t ret;
 
@@ -305,7 +305,7 @@ static int auxtrace_queues__add_event_buffer(struct auxtrace_queues *queues,
 	if (session->one_mmap) {
 		buffer->data = buffer->data_offset - session->one_mmap_offset +
 			       session->one_mmap_addr;
-	} else if (perf_data_file__is_pipe(session->file)) {
+	} else if (perf_data__is_pipe(session->data)) {
 		buffer->data = auxtrace_copy_data(buffer->size, session);
 		if (!buffer->data)
 			return -ENOMEM;
diff --git a/tools/perf/util/auxtrace.h b/tools/perf/util/auxtrace.h
index 33b5e6cdf38c..d19e11b68de7 100644
--- a/tools/perf/util/auxtrace.h
+++ b/tools/perf/util/auxtrace.h
@@ -378,7 +378,7 @@ struct addr_filters {
 static inline u64 auxtrace_mmap__read_snapshot_head(struct auxtrace_mmap *mm)
 {
 	struct perf_event_mmap_page *pc = mm->userpg;
-	u64 head = ACCESS_ONCE(pc->aux_head);
+	u64 head = READ_ONCE(pc->aux_head);
 
 	/* Ensure all reads are done after we read the head */
 	rmb();
@@ -389,7 +389,7 @@ static inline u64 auxtrace_mmap__read_head(struct auxtrace_mmap *mm)
 {
 	struct perf_event_mmap_page *pc = mm->userpg;
 #if BITS_PER_LONG == 64 || !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
-	u64 head = ACCESS_ONCE(pc->aux_head);
+	u64 head = READ_ONCE(pc->aux_head);
 #else
 	u64 head = __sync_val_compare_and_swap(&pc->aux_head, 0, 0);
 #endif
diff --git a/tools/perf/util/block-range.c b/tools/perf/util/block-range.c
index 7b3e1d75d803..f1451c987eec 100644
--- a/tools/perf/util/block-range.c
+++ b/tools/perf/util/block-range.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "block-range.h"
 #include "annotate.h"
 
diff --git a/tools/perf/util/block-range.h b/tools/perf/util/block-range.h
index a8c841381131..a5ba719d69fb 100644
--- a/tools/perf/util/block-range.h
+++ b/tools/perf/util/block-range.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_BLOCK_RANGE_H
 #define __PERF_BLOCK_RANGE_H
 
diff --git a/tools/perf/util/bpf-loader.c b/tools/perf/util/bpf-loader.c
index 4a1264c66101..72c107fcbc5a 100644
--- a/tools/perf/util/bpf-loader.c
+++ b/tools/perf/util/bpf-loader.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bpf-loader.c
  *
diff --git a/tools/perf/util/bpf-loader.h b/tools/perf/util/bpf-loader.h
index 48863867878b..5d3aefd6fae7 100644
--- a/tools/perf/util/bpf-loader.h
+++ b/tools/perf/util/bpf-loader.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015, Huawei Inc.
diff --git a/tools/perf/util/bpf-prologue.c b/tools/perf/util/bpf-prologue.c
index 827f9140f3b8..29347756b0af 100644
--- a/tools/perf/util/bpf-prologue.c
+++ b/tools/perf/util/bpf-prologue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * bpf-prologue.c
  *
diff --git a/tools/perf/util/bpf-prologue.h b/tools/perf/util/bpf-prologue.h
index ba564838375f..c50c7358009f 100644
--- a/tools/perf/util/bpf-prologue.h
+++ b/tools/perf/util/bpf-prologue.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2015, He Kuang <hekuang@huawei.com>
  * Copyright (C) 2015, Huawei Inc.
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index c1a06fcd7e70..7f8553630c4d 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * build-id.c
  *
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index c94b0dcbfd74..f0c565164a97 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_BUILD_ID_H_
 #define PERF_BUILD_ID_H_ 1
 
diff --git a/tools/perf/util/c++/clang-c.h b/tools/perf/util/c++/clang-c.h
index ccafcf72b37a..e513366f2ee0 100644
--- a/tools/perf/util/c++/clang-c.h
+++ b/tools/perf/util/c++/clang-c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_UTIL_CLANG_C_H
 #define PERF_UTIL_CLANG_C_H
 
diff --git a/tools/perf/util/c++/clang-test.cpp b/tools/perf/util/c++/clang-test.cpp
index 9b11e8c82798..a4014d786676 100644
--- a/tools/perf/util/c++/clang-test.cpp
+++ b/tools/perf/util/c++/clang-test.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "clang.h"
 #include "clang-c.h"
 #include "llvm/IR/Function.h"
diff --git a/tools/perf/util/c++/clang.cpp b/tools/perf/util/c++/clang.cpp
index 1e974152cac2..1bfc946e37dc 100644
--- a/tools/perf/util/c++/clang.cpp
+++ b/tools/perf/util/c++/clang.cpp
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * llvm C frontend for perf. Support dynamically compile C file
  *
diff --git a/tools/perf/util/c++/clang.h b/tools/perf/util/c++/clang.h
index dd8b0427550d..6ce33e22f23c 100644
--- a/tools/perf/util/c++/clang.h
+++ b/tools/perf/util/c++/clang.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_UTIL_CLANG_H
 #define PERF_UTIL_CLANG_H
 
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index 0175765c05b9..9f2e36ef5072 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_CACHE_H
 #define __PERF_CACHE_H
 
diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 510b513e0f01..082505d08d72 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2009-2011, Frederic Weisbecker <fweisbec@gmail.com>
  *
@@ -65,8 +66,6 @@ static int parse_callchain_mode(const char *value)
 		callchain_param.mode = CHAIN_FOLDED;
 		return 0;
 	}
-
-	pr_err("Invalid callchain mode: %s\n", value);
 	return -1;
 }
 
@@ -82,8 +81,6 @@ static int parse_callchain_order(const char *value)
 		callchain_param.order_set = true;
 		return 0;
 	}
-
-	pr_err("Invalid callchain order: %s\n", value);
 	return -1;
 }
 
@@ -105,8 +102,6 @@ static int parse_callchain_sort_key(const char *value)
 		callchain_param.branch_callstack = 1;
 		return 0;
 	}
-
-	pr_err("Invalid callchain sort key: %s\n", value);
 	return -1;
 }
 
@@ -124,8 +119,6 @@ static int parse_callchain_value(const char *value)
 		callchain_param.value = CCVAL_COUNT;
 		return 0;
 	}
-
-	pr_err("Invalid callchain config key: %s\n", value);
 	return -1;
 }
 
@@ -319,12 +312,27 @@ int perf_callchain_config(const char *var, const char *value)
 
 		return ret;
 	}
-	if (!strcmp(var, "print-type"))
-		return parse_callchain_mode(value);
-	if (!strcmp(var, "order"))
-		return parse_callchain_order(value);
-	if (!strcmp(var, "sort-key"))
-		return parse_callchain_sort_key(value);
+	if (!strcmp(var, "print-type")){
+		int ret;
+		ret = parse_callchain_mode(value);
+		if (ret == -1)
+			pr_err("Invalid callchain mode: %s\n", value);
+		return ret;
+	}
+	if (!strcmp(var, "order")){
+		int ret;
+		ret = parse_callchain_order(value);
+		if (ret == -1)
+			pr_err("Invalid callchain order: %s\n", value);
+		return ret;
+	}
+	if (!strcmp(var, "sort-key")){
+		int ret;
+		ret = parse_callchain_sort_key(value);
+		if (ret == -1)
+			pr_err("Invalid callchain sort key: %s\n", value);
+		return ret;
+	}
 	if (!strcmp(var, "threshold")) {
 		callchain_param.min_percent = strtod(value, &endptr);
 		if (value == endptr) {
@@ -559,6 +567,7 @@ fill_node(struct callchain_node *node, struct callchain_cursor *cursor)
 		call->ip = cursor_node->ip;
 		call->ms.sym = cursor_node->sym;
 		call->ms.map = map__get(cursor_node->map);
+		call->srcline = cursor_node->srcline;
 
 		if (cursor_node->branch) {
 			call->branch_count = 1;
@@ -637,99 +646,120 @@ enum match_result {
 	MATCH_GT,
 };
 
-static enum match_result match_chain_srcline(struct callchain_cursor_node *node,
-					     struct callchain_list *cnode)
+static enum match_result match_chain_strings(const char *left,
+					     const char *right)
 {
-	char *left = NULL;
-	char *right = NULL;
 	enum match_result ret = MATCH_EQ;
 	int cmp;
 
-	if (cnode->ms.map)
-		left = get_srcline(cnode->ms.map->dso,
-				 map__rip_2objdump(cnode->ms.map, cnode->ip),
-				 cnode->ms.sym, true, false);
-	if (node->map)
-		right = get_srcline(node->map->dso,
-				  map__rip_2objdump(node->map, node->ip),
-				  node->sym, true, false);
-
 	if (left && right)
 		cmp = strcmp(left, right);
 	else if (!left && right)
 		cmp = 1;
 	else if (left && !right)
 		cmp = -1;
-	else if (cnode->ip == node->ip)
-		cmp = 0;
 	else
-		cmp = (cnode->ip < node->ip) ? -1 : 1;
+		return MATCH_ERROR;
 
 	if (cmp != 0)
 		ret = cmp < 0 ? MATCH_LT : MATCH_GT;
 
-	free_srcline(left);
-	free_srcline(right);
 	return ret;
 }
 
+/*
+ * We need to always use relative addresses because we're aggregating
+ * callchains from multiple threads, i.e. different address spaces, so
+ * comparing absolute addresses make no sense as a symbol in a DSO may end up
+ * in a different address when used in a different binary or even the same
+ * binary but with some sort of address randomization technique, thus we need
+ * to compare just relative addresses. -acme
+ */
+static enum match_result match_chain_dso_addresses(struct map *left_map, u64 left_ip,
+						   struct map *right_map, u64 right_ip)
+{
+	struct dso *left_dso = left_map ? left_map->dso : NULL;
+	struct dso *right_dso = right_map ? right_map->dso : NULL;
+
+	if (left_dso != right_dso)
+		return left_dso < right_dso ? MATCH_LT : MATCH_GT;
+
+	if (left_ip != right_ip)
+ 		return left_ip < right_ip ? MATCH_LT : MATCH_GT;
+
+	return MATCH_EQ;
+}
+
 static enum match_result match_chain(struct callchain_cursor_node *node,
 				     struct callchain_list *cnode)
 {
-	struct symbol *sym = node->sym;
-	u64 left, right;
-
-	if (callchain_param.key == CCKEY_SRCLINE) {
-		enum match_result match = match_chain_srcline(node, cnode);
+	enum match_result match = MATCH_ERROR;
 
+	switch (callchain_param.key) {
+	case CCKEY_SRCLINE:
+		match = match_chain_strings(cnode->srcline, node->srcline);
 		if (match != MATCH_ERROR)
-			return match;
+			break;
+		/* otherwise fall-back to symbol-based comparison below */
+		__fallthrough;
+	case CCKEY_FUNCTION:
+		if (node->sym && cnode->ms.sym) {
+			/*
+			 * Compare inlined frames based on their symbol name
+			 * because different inlined frames will have the same
+			 * symbol start. Otherwise do a faster comparison based
+			 * on the symbol start address.
+			 */
+			if (cnode->ms.sym->inlined || node->sym->inlined) {
+				match = match_chain_strings(cnode->ms.sym->name,
+							    node->sym->name);
+				if (match != MATCH_ERROR)
+					break;
+			} else {
+				match = match_chain_dso_addresses(cnode->ms.map, cnode->ms.sym->start,
+								  node->map, node->sym->start);
+				break;
+			}
+		}
+		/* otherwise fall-back to IP-based comparison below */
+		__fallthrough;
+	case CCKEY_ADDRESS:
+	default:
+		match = match_chain_dso_addresses(cnode->ms.map, cnode->ip, node->map, node->ip);
+		break;
 	}
 
-	if (cnode->ms.sym && sym && callchain_param.key == CCKEY_FUNCTION) {
-		left = cnode->ms.sym->start;
-		right = sym->start;
-	} else {
-		left = cnode->ip;
-		right = node->ip;
-	}
+	if (match == MATCH_EQ && node->branch) {
+		cnode->branch_count++;
 
-	if (left == right) {
-		if (node->branch) {
-			cnode->branch_count++;
+		if (node->branch_from) {
+			/*
+			 * It's "to" of a branch
+			 */
+			cnode->brtype_stat.branch_to = true;
 
-			if (node->branch_from) {
-				/*
-				 * It's "to" of a branch
-				 */
-				cnode->brtype_stat.branch_to = true;
+			if (node->branch_flags.predicted)
+				cnode->predicted_count++;
 
-				if (node->branch_flags.predicted)
-					cnode->predicted_count++;
+			if (node->branch_flags.abort)
+				cnode->abort_count++;
 
-				if (node->branch_flags.abort)
-					cnode->abort_count++;
-
-				branch_type_count(&cnode->brtype_stat,
-						  &node->branch_flags,
-						  node->branch_from,
-						  node->ip);
-			} else {
-				/*
-				 * It's "from" of a branch
-				 */
-				cnode->brtype_stat.branch_to = false;
-				cnode->cycles_count +=
-					node->branch_flags.cycles;
-				cnode->iter_count += node->nr_loop_iter;
-				cnode->iter_cycles += node->iter_cycles;
-			}
+			branch_type_count(&cnode->brtype_stat,
+					  &node->branch_flags,
+					  node->branch_from,
+					  node->ip);
+		} else {
+			/*
+			 * It's "from" of a branch
+			 */
+			cnode->brtype_stat.branch_to = false;
+			cnode->cycles_count += node->branch_flags.cycles;
+			cnode->iter_count += node->nr_loop_iter;
+			cnode->iter_cycles += node->iter_cycles;
 		}
-
-		return MATCH_EQ;
 	}
 
-	return left > right ? MATCH_GT : MATCH_LT;
+	return match;
 }
 
 /*
@@ -958,7 +988,7 @@ merge_chain_branch(struct callchain_cursor *cursor,
 	list_for_each_entry_safe(list, next_list, &src->val, list) {
 		callchain_cursor_append(cursor, list->ip,
 					list->ms.map, list->ms.sym,
-					false, NULL, 0, 0, 0);
+					false, NULL, 0, 0, 0, list->srcline);
 		list_del(&list->list);
 		map__zput(list->ms.map);
 		free(list);
@@ -998,7 +1028,8 @@ int callchain_merge(struct callchain_cursor *cursor,
 int callchain_cursor_append(struct callchain_cursor *cursor,
 			    u64 ip, struct map *map, struct symbol *sym,
 			    bool branch, struct branch_flags *flags,
-			    int nr_loop_iter, u64 iter_cycles, u64 branch_from)
+			    int nr_loop_iter, u64 iter_cycles, u64 branch_from,
+			    const char *srcline)
 {
 	struct callchain_cursor_node *node = *cursor->last;
 
@@ -1017,6 +1048,7 @@ int callchain_cursor_append(struct callchain_cursor *cursor,
 	node->branch = branch;
 	node->nr_loop_iter = nr_loop_iter;
 	node->iter_cycles = iter_cycles;
+	node->srcline = srcline;
 
 	if (flags)
 		memcpy(&node->branch_flags, flags,
@@ -1059,10 +1091,8 @@ int fill_callchain_info(struct addr_location *al, struct callchain_cursor_node *
 {
 	al->map = node->map;
 	al->sym = node->sym;
-	if (node->map)
-		al->addr = node->map->map_ip(node->map, node->ip);
-	else
-		al->addr = node->ip;
+	al->srcline = node->srcline;
+	al->addr = node->ip;
 
 	if (al->sym == NULL) {
 		if (hide_unresolved)
@@ -1104,16 +1134,15 @@ char *callchain_list__sym_name(struct callchain_list *cl,
 	int printed;
 
 	if (cl->ms.sym) {
-		if (show_srcline && cl->ms.map && !cl->srcline)
-			cl->srcline = get_srcline(cl->ms.map->dso,
-						  map__rip_2objdump(cl->ms.map,
-								    cl->ip),
-						  cl->ms.sym, false, show_addr);
-		if (cl->srcline)
-			printed = scnprintf(bf, bfsize, "%s %s",
-					cl->ms.sym->name, cl->srcline);
+		const char *inlined = cl->ms.sym->inlined ? " (inlined)" : "";
+
+		if (show_srcline && cl->srcline)
+			printed = scnprintf(bf, bfsize, "%s %s%s",
+					    cl->ms.sym->name, cl->srcline,
+					    inlined);
 		else
-			printed = scnprintf(bf, bfsize, "%s", cl->ms.sym->name);
+			printed = scnprintf(bf, bfsize, "%s%s",
+					    cl->ms.sym->name, inlined);
 	} else
 		printed = scnprintf(bf, bfsize, "%#" PRIx64, cl->ip);
 
@@ -1521,7 +1550,7 @@ int callchain_cursor__copy(struct callchain_cursor *dst,
 					     node->branch, &node->branch_flags,
 					     node->nr_loop_iter,
 					     node->iter_cycles,
-					     node->branch_from);
+					     node->branch_from, node->srcline);
 		if (rc)
 			break;
 
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 1ed6fc61d0a5..b79ef2478a57 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_CALLCHAIN_H
 #define __PERF_CALLCHAIN_H
 
@@ -121,7 +122,7 @@ struct callchain_list {
 	u64			iter_count;
 	u64			iter_cycles;
 	struct branch_type_stat brtype_stat;
-	char		       *srcline;
+	const char		*srcline;
 	struct list_head	list;
 };
 
@@ -135,6 +136,7 @@ struct callchain_cursor_node {
 	u64				ip;
 	struct map			*map;
 	struct symbol			*sym;
+	const char			*srcline;
 	bool				branch;
 	struct branch_flags		branch_flags;
 	u64				branch_from;
@@ -201,7 +203,8 @@ static inline void callchain_cursor_reset(struct callchain_cursor *cursor)
 int callchain_cursor_append(struct callchain_cursor *cursor, u64 ip,
 			    struct map *map, struct symbol *sym,
 			    bool branch, struct branch_flags *flags,
-			    int nr_loop_iter, u64 iter_cycles, u64 branch_from);
+			    int nr_loop_iter, u64 iter_cycles, u64 branch_from,
+			    const char *srcline);
 
 /* Close a cursor writing session. Initialize for the reader */
 static inline void callchain_cursor_commit(struct callchain_cursor *cursor)
diff --git a/tools/perf/util/cgroup.c b/tools/perf/util/cgroup.c
index 0e77bc9e5f3c..d9ffc1e6eb39 100644
--- a/tools/perf/util/cgroup.c
+++ b/tools/perf/util/cgroup.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util.h"
 #include "../perf.h"
 #include <subcmd/parse-options.h>
diff --git a/tools/perf/util/cgroup.h b/tools/perf/util/cgroup.h
index d91966b97cbd..afafc87e9201 100644
--- a/tools/perf/util/cgroup.h
+++ b/tools/perf/util/cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CGROUP_H__
 #define __CGROUP_H__
 
diff --git a/tools/perf/util/cloexec.c b/tools/perf/util/cloexec.c
index 4b4f00df58a8..ca0fff6272be 100644
--- a/tools/perf/util/cloexec.c
+++ b/tools/perf/util/cloexec.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <sched.h>
 #include "util.h"
diff --git a/tools/perf/util/cloexec.h b/tools/perf/util/cloexec.h
index 94a5a7d829d5..78216b1015c4 100644
--- a/tools/perf/util/cloexec.h
+++ b/tools/perf/util/cloexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_CLOEXEC_H
 #define __PERF_CLOEXEC_H
 
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index dbbf89b050a5..39e628b8938e 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/kernel.h>
 #include "cache.h"
 #include "config.h"
diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h
index 52122bcc3170..22777b1812ee 100644
--- a/tools/perf/util/color.h
+++ b/tools/perf/util/color.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_COLOR_H
 #define __PERF_COLOR_H
 
diff --git a/tools/perf/util/comm.c b/tools/perf/util/comm.c
index 7bc981b6bf29..7798a2cc8a86 100644
--- a/tools/perf/util/comm.c
+++ b/tools/perf/util/comm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "comm.h"
 #include "util.h"
 #include <errno.h>
@@ -5,6 +6,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <linux/refcount.h>
+#include "rwsem.h"
 
 struct comm_str {
 	char *str;
@@ -14,6 +16,7 @@ struct comm_str {
 
 /* Should perhaps be moved to struct machine */
 static struct rb_root comm_str_root;
+static struct rw_semaphore comm_str_lock = {.lock = PTHREAD_RWLOCK_INITIALIZER,};
 
 static struct comm_str *comm_str__get(struct comm_str *cs)
 {
@@ -25,7 +28,9 @@ static struct comm_str *comm_str__get(struct comm_str *cs)
 static void comm_str__put(struct comm_str *cs)
 {
 	if (cs && refcount_dec_and_test(&cs->refcnt)) {
+		down_write(&comm_str_lock);
 		rb_erase(&cs->rb_node, &comm_str_root);
+		up_write(&comm_str_lock);
 		zfree(&cs->str);
 		free(cs);
 	}
@@ -50,7 +55,8 @@ static struct comm_str *comm_str__alloc(const char *str)
 	return cs;
 }
 
-static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root)
+static
+struct comm_str *__comm_str__findnew(const char *str, struct rb_root *root)
 {
 	struct rb_node **p = &root->rb_node;
 	struct rb_node *parent = NULL;
@@ -81,6 +87,17 @@ static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root)
 	return new;
 }
 
+static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root)
+{
+	struct comm_str *cs;
+
+	down_write(&comm_str_lock);
+	cs = __comm_str__findnew(str, root);
+	up_write(&comm_str_lock);
+
+	return cs;
+}
+
 struct comm *comm__new(const char *str, u64 timestamp, bool exec)
 {
 	struct comm *comm = zalloc(sizeof(*comm));
diff --git a/tools/perf/util/comm.h b/tools/perf/util/comm.h
index 71c9c39340d4..3e5c438fe85e 100644
--- a/tools/perf/util/comm.h
+++ b/tools/perf/util/comm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_COMM_H
 #define __PERF_COMM_H
 
diff --git a/tools/perf/util/compress.h b/tools/perf/util/compress.h
index 67fd1bb7c2b7..ecca688a25fb 100644
--- a/tools/perf/util/compress.h
+++ b/tools/perf/util/compress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_COMPRESS_H
 #define PERF_COMPRESS_H
 
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index bc75596f9e79..84eb9393c7db 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * config.c
  *
@@ -700,10 +701,7 @@ struct perf_config_set *perf_config_set__new(void)
 
 	if (set) {
 		INIT_LIST_HEAD(&set->sections);
-		if (perf_config_set__init(set) < 0) {
-			perf_config_set__delete(set);
-			set = NULL;
-		}
+		perf_config_set__init(set);
 	}
 
 	return set;
diff --git a/tools/perf/util/config.h b/tools/perf/util/config.h
index b6bb11f3f165..baf82bf227ac 100644
--- a/tools/perf/util/config.h
+++ b/tools/perf/util/config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_CONFIG_H
 #define __PERF_CONFIG_H
 
diff --git a/tools/perf/util/counts.c b/tools/perf/util/counts.c
index c4af82ab7808..03032b410c29 100644
--- a/tools/perf/util/counts.c
+++ b/tools/perf/util/counts.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdlib.h>
 #include "evsel.h"
diff --git a/tools/perf/util/counts.h b/tools/perf/util/counts.h
index cb45a6aecf9d..0d1050ccc586 100644
--- a/tools/perf/util/counts.h
+++ b/tools/perf/util/counts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_COUNTS_H
 #define __PERF_COUNTS_H
 
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 37b3bb79ee08..1ccbd3342069 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util.h"
 #include <api/fs/fs.h>
 #include "../perf.h"
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 6b8bff87481d..ed8999d1a640 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_CPUMAP_H
 #define __PERF_CPUMAP_H
 
diff --git a/tools/perf/util/ctype.c b/tools/perf/util/ctype.c
index 4b261c2ec0f1..ee4c1e8ed54b 100644
--- a/tools/perf/util/ctype.c
+++ b/tools/perf/util/ctype.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Sane locale-independent, ASCII ctype.
  *
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c
index 2346cecb8ea2..5744c12641a5 100644
--- a/tools/perf/util/data-convert-bt.c
+++ b/tools/perf/util/data-convert-bt.c
@@ -1577,10 +1577,10 @@ int bt_convert__perf2ctf(const char *input, const char *path,
 			 struct perf_data_convert_opts *opts)
 {
 	struct perf_session *session;
-	struct perf_data_file file = {
-		.path = input,
-		.mode = PERF_DATA_MODE_READ,
-		.force = opts->force,
+	struct perf_data data = {
+		.file.path = input,
+		.mode      = PERF_DATA_MODE_READ,
+		.force     = opts->force,
 	};
 	struct convert c = {
 		.tool = {
@@ -1619,7 +1619,7 @@ int bt_convert__perf2ctf(const char *input, const char *path,
 
 	err = -1;
 	/* perf.data session */
-	session = perf_session__new(&file, 0, &c.tool);
+	session = perf_session__new(&data, 0, &c.tool);
 	if (!session)
 		goto free_writer;
 
@@ -1650,7 +1650,7 @@ int bt_convert__perf2ctf(const char *input, const char *path,
 
 	fprintf(stderr,
 		"[ perf data convert: Converted '%s' into CTF data '%s' ]\n",
-		file.path, path);
+		data.file.path, path);
 
 	fprintf(stderr,
 		"[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples",
diff --git a/tools/perf/util/data-convert-bt.h b/tools/perf/util/data-convert-bt.h
index 9a3b587f76c1..821674d63c4e 100644
--- a/tools/perf/util/data-convert-bt.h
+++ b/tools/perf/util/data-convert-bt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DATA_CONVERT_BT_H
 #define __DATA_CONVERT_BT_H
 #include "data-convert.h"
diff --git a/tools/perf/util/data-convert.h b/tools/perf/util/data-convert.h
index 5314962fe95b..af90b6076c06 100644
--- a/tools/perf/util/data-convert.h
+++ b/tools/perf/util/data-convert.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __DATA_CONVERT_H
 #define __DATA_CONVERT_H
 
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
index e84bbc8ec058..48094fde0a68 100644
--- a/tools/perf/util/data.c
+++ b/tools/perf/util/data.c
@@ -1,8 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/kernel.h>
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <unistd.h>
 #include <string.h>
 
@@ -10,56 +12,66 @@
 #include "util.h"
 #include "debug.h"
 
-static bool check_pipe(struct perf_data_file *file)
+#ifndef O_CLOEXEC
+#ifdef __sparc__
+#define O_CLOEXEC	0x400000
+#elif defined(__alpha__) || defined(__hppa__)
+#define O_CLOEXEC	010000000
+#else
+#define O_CLOEXEC	02000000
+#endif
+#endif
+
+static bool check_pipe(struct perf_data *data)
 {
 	struct stat st;
 	bool is_pipe = false;
-	int fd = perf_data_file__is_read(file) ?
+	int fd = perf_data__is_read(data) ?
 		 STDIN_FILENO : STDOUT_FILENO;
 
-	if (!file->path) {
+	if (!data->file.path) {
 		if (!fstat(fd, &st) && S_ISFIFO(st.st_mode))
 			is_pipe = true;
 	} else {
-		if (!strcmp(file->path, "-"))
+		if (!strcmp(data->file.path, "-"))
 			is_pipe = true;
 	}
 
 	if (is_pipe)
-		file->fd = fd;
+		data->file.fd = fd;
 
-	return file->is_pipe = is_pipe;
+	return data->is_pipe = is_pipe;
 }
 
-static int check_backup(struct perf_data_file *file)
+static int check_backup(struct perf_data *data)
 {
 	struct stat st;
 
-	if (!stat(file->path, &st) && st.st_size) {
+	if (!stat(data->file.path, &st) && st.st_size) {
 		/* TODO check errors properly */
 		char oldname[PATH_MAX];
 		snprintf(oldname, sizeof(oldname), "%s.old",
-			 file->path);
+			 data->file.path);
 		unlink(oldname);
-		rename(file->path, oldname);
+		rename(data->file.path, oldname);
 	}
 
 	return 0;
 }
 
-static int open_file_read(struct perf_data_file *file)
+static int open_file_read(struct perf_data *data)
 {
 	struct stat st;
 	int fd;
 	char sbuf[STRERR_BUFSIZE];
 
-	fd = open(file->path, O_RDONLY);
+	fd = open(data->file.path, O_RDONLY);
 	if (fd < 0) {
 		int err = errno;
 
-		pr_err("failed to open %s: %s", file->path,
+		pr_err("failed to open %s: %s", data->file.path,
 			str_error_r(err, sbuf, sizeof(sbuf)));
-		if (err == ENOENT && !strcmp(file->path, "perf.data"))
+		if (err == ENOENT && !strcmp(data->file.path, "perf.data"))
 			pr_err("  (try 'perf record' first)");
 		pr_err("\n");
 		return -err;
@@ -68,19 +80,19 @@ static int open_file_read(struct perf_data_file *file)
 	if (fstat(fd, &st) < 0)
 		goto out_close;
 
-	if (!file->force && st.st_uid && (st.st_uid != geteuid())) {
+	if (!data->force && st.st_uid && (st.st_uid != geteuid())) {
 		pr_err("File %s not owned by current user or root (use -f to override)\n",
-		       file->path);
+		       data->file.path);
 		goto out_close;
 	}
 
 	if (!st.st_size) {
-		pr_info("zero-sized file (%s), nothing to do!\n",
-			file->path);
+		pr_info("zero-sized data (%s), nothing to do!\n",
+			data->file.path);
 		goto out_close;
 	}
 
-	file->size = st.st_size;
+	data->size = st.st_size;
 	return fd;
 
  out_close:
@@ -88,48 +100,49 @@ static int open_file_read(struct perf_data_file *file)
 	return -1;
 }
 
-static int open_file_write(struct perf_data_file *file)
+static int open_file_write(struct perf_data *data)
 {
 	int fd;
 	char sbuf[STRERR_BUFSIZE];
 
-	if (check_backup(file))
+	if (check_backup(data))
 		return -1;
 
-	fd = open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR);
+	fd = open(data->file.path, O_CREAT|O_RDWR|O_TRUNC|O_CLOEXEC,
+		  S_IRUSR|S_IWUSR);
 
 	if (fd < 0)
-		pr_err("failed to open %s : %s\n", file->path,
+		pr_err("failed to open %s : %s\n", data->file.path,
 			str_error_r(errno, sbuf, sizeof(sbuf)));
 
 	return fd;
 }
 
-static int open_file(struct perf_data_file *file)
+static int open_file(struct perf_data *data)
 {
 	int fd;
 
-	fd = perf_data_file__is_read(file) ?
-	     open_file_read(file) : open_file_write(file);
+	fd = perf_data__is_read(data) ?
+	     open_file_read(data) : open_file_write(data);
 
-	file->fd = fd;
+	data->file.fd = fd;
 	return fd < 0 ? -1 : 0;
 }
 
-int perf_data_file__open(struct perf_data_file *file)
+int perf_data__open(struct perf_data *data)
 {
-	if (check_pipe(file))
+	if (check_pipe(data))
 		return 0;
 
-	if (!file->path)
-		file->path = "perf.data";
+	if (!data->file.path)
+		data->file.path = "perf.data";
 
-	return open_file(file);
+	return open_file(data);
 }
 
-void perf_data_file__close(struct perf_data_file *file)
+void perf_data__close(struct perf_data *data)
 {
-	close(file->fd);
+	close(data->file.fd);
 }
 
 ssize_t perf_data_file__write(struct perf_data_file *file,
@@ -138,42 +151,48 @@ ssize_t perf_data_file__write(struct perf_data_file *file,
 	return writen(file->fd, buf, size);
 }
 
-int perf_data_file__switch(struct perf_data_file *file,
+ssize_t perf_data__write(struct perf_data *data,
+			      void *buf, size_t size)
+{
+	return perf_data_file__write(&data->file, buf, size);
+}
+
+int perf_data__switch(struct perf_data *data,
 			   const char *postfix,
 			   size_t pos, bool at_exit)
 {
 	char *new_filepath;
 	int ret;
 
-	if (check_pipe(file))
+	if (check_pipe(data))
 		return -EINVAL;
-	if (perf_data_file__is_read(file))
+	if (perf_data__is_read(data))
 		return -EINVAL;
 
-	if (asprintf(&new_filepath, "%s.%s", file->path, postfix) < 0)
+	if (asprintf(&new_filepath, "%s.%s", data->file.path, postfix) < 0)
 		return -ENOMEM;
 
 	/*
 	 * Only fire a warning, don't return error, continue fill
 	 * original file.
 	 */
-	if (rename(file->path, new_filepath))
-		pr_warning("Failed to rename %s to %s\n", file->path, new_filepath);
+	if (rename(data->file.path, new_filepath))
+		pr_warning("Failed to rename %s to %s\n", data->file.path, new_filepath);
 
 	if (!at_exit) {
-		close(file->fd);
-		ret = perf_data_file__open(file);
+		close(data->file.fd);
+		ret = perf_data__open(data);
 		if (ret < 0)
 			goto out;
 
-		if (lseek(file->fd, pos, SEEK_SET) == (off_t)-1) {
+		if (lseek(data->file.fd, pos, SEEK_SET) == (off_t)-1) {
 			ret = -errno;
 			pr_debug("Failed to lseek to %zu: %s",
 				 pos, strerror(errno));
 			goto out;
 		}
 	}
-	ret = file->fd;
+	ret = data->file.fd;
 out:
 	free(new_filepath);
 	return ret;
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
index ae510ce16cb1..4828f7feea89 100644
--- a/tools/perf/util/data.h
+++ b/tools/perf/util/data.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_DATA_H
 #define __PERF_DATA_H
 
@@ -9,51 +10,57 @@ enum perf_data_mode {
 };
 
 struct perf_data_file {
-	const char		*path;
-	int			 fd;
+	const char	*path;
+	int		 fd;
+};
+
+struct perf_data {
+	struct perf_data_file	 file;
 	bool			 is_pipe;
 	bool			 force;
 	unsigned long		 size;
 	enum perf_data_mode	 mode;
 };
 
-static inline bool perf_data_file__is_read(struct perf_data_file *file)
+static inline bool perf_data__is_read(struct perf_data *data)
 {
-	return file->mode == PERF_DATA_MODE_READ;
+	return data->mode == PERF_DATA_MODE_READ;
 }
 
-static inline bool perf_data_file__is_write(struct perf_data_file *file)
+static inline bool perf_data__is_write(struct perf_data *data)
 {
-	return file->mode == PERF_DATA_MODE_WRITE;
+	return data->mode == PERF_DATA_MODE_WRITE;
 }
 
-static inline int perf_data_file__is_pipe(struct perf_data_file *file)
+static inline int perf_data__is_pipe(struct perf_data *data)
 {
-	return file->is_pipe;
+	return data->is_pipe;
 }
 
-static inline int perf_data_file__fd(struct perf_data_file *file)
+static inline int perf_data__fd(struct perf_data *data)
 {
-	return file->fd;
+	return data->file.fd;
 }
 
-static inline unsigned long perf_data_file__size(struct perf_data_file *file)
+static inline unsigned long perf_data__size(struct perf_data *data)
 {
-	return file->size;
+	return data->size;
 }
 
-int perf_data_file__open(struct perf_data_file *file);
-void perf_data_file__close(struct perf_data_file *file);
+int perf_data__open(struct perf_data *data);
+void perf_data__close(struct perf_data *data);
+ssize_t perf_data__write(struct perf_data *data,
+			      void *buf, size_t size);
 ssize_t perf_data_file__write(struct perf_data_file *file,
 			      void *buf, size_t size);
 /*
  * If at_exit is set, only rename current perf.data to
- * perf.data.<postfix>, continue write on original file.
+ * perf.data.<postfix>, continue write on original data.
  * Set at_exit when flushing the last output.
  *
  * Return value is fd of new output.
  */
-int perf_data_file__switch(struct perf_data_file *file,
+int perf_data__switch(struct perf_data *data,
 			   const char *postfix,
 			   size_t pos, bool at_exit);
 #endif /* __PERF_DATA_H */
diff --git a/tools/perf/util/debug.c b/tools/perf/util/debug.c
index a5b3777ffee6..f3a71db83947 100644
--- a/tools/perf/util/debug.c
+++ b/tools/perf/util/debug.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* For general debugging purposes */
 
 #include "../perf.h"
@@ -111,50 +112,53 @@ int dump_printf(const char *fmt, ...)
 	return ret;
 }
 
-static void trace_event_printer(enum binary_printer_ops op,
-				unsigned int val, void *extra)
+static int trace_event_printer(enum binary_printer_ops op,
+			       unsigned int val, void *extra, FILE *fp)
 {
 	const char *color = PERF_COLOR_BLUE;
 	union perf_event *event = (union perf_event *)extra;
 	unsigned char ch = (unsigned char)val;
+	int printed = 0;
 
 	switch (op) {
 	case BINARY_PRINT_DATA_BEGIN:
-		printf(".");
-		color_fprintf(stdout, color, "\n. ... raw event: size %d bytes\n",
-				event->header.size);
+		printed += fprintf(fp, ".");
+		printed += color_fprintf(fp, color, "\n. ... raw event: size %d bytes\n",
+					 event->header.size);
 		break;
 	case BINARY_PRINT_LINE_BEGIN:
-		printf(".");
+		printed += fprintf(fp, ".");
 		break;
 	case BINARY_PRINT_ADDR:
-		color_fprintf(stdout, color, "  %04x: ", val);
+		printed += color_fprintf(fp, color, "  %04x: ", val);
 		break;
 	case BINARY_PRINT_NUM_DATA:
-		color_fprintf(stdout, color, " %02x", val);
+		printed += color_fprintf(fp, color, " %02x", val);
 		break;
 	case BINARY_PRINT_NUM_PAD:
-		color_fprintf(stdout, color, "   ");
+		printed += color_fprintf(fp, color, "   ");
 		break;
 	case BINARY_PRINT_SEP:
-		color_fprintf(stdout, color, "  ");
+		printed += color_fprintf(fp, color, "  ");
 		break;
 	case BINARY_PRINT_CHAR_DATA:
-		color_fprintf(stdout, color, "%c",
+		printed += color_fprintf(fp, color, "%c",
 			      isprint(ch) ? ch : '.');
 		break;
 	case BINARY_PRINT_CHAR_PAD:
-		color_fprintf(stdout, color, " ");
+		printed += color_fprintf(fp, color, " ");
 		break;
 	case BINARY_PRINT_LINE_END:
-		color_fprintf(stdout, color, "\n");
+		printed += color_fprintf(fp, color, "\n");
 		break;
 	case BINARY_PRINT_DATA_END:
-		printf("\n");
+		printed += fprintf(fp, "\n");
 		break;
 	default:
 		break;
 	}
+
+	return printed;
 }
 
 void trace_event(union perf_event *event)
diff --git a/tools/perf/util/debug.h b/tools/perf/util/debug.h
index c818bdb1c1ab..77445dfc5c7d 100644
--- a/tools/perf/util/debug.h
+++ b/tools/perf/util/debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* For debugging general purposes */
 #ifndef __PERF_DEBUG_H
 #define __PERF_DEBUG_H
diff --git a/tools/perf/util/demangle-java.c b/tools/perf/util/demangle-java.c
index cb66d334f532..e4c486756053 100644
--- a/tools/perf/util/demangle-java.c
+++ b/tools/perf/util/demangle-java.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/tools/perf/util/demangle-java.h b/tools/perf/util/demangle-java.h
index a981c1f968fe..f936c8eabe5d 100644
--- a/tools/perf/util/demangle-java.h
+++ b/tools/perf/util/demangle-java.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_DEMANGLE_JAVA
 #define __PERF_DEMANGLE_JAVA 1
 /*
diff --git a/tools/perf/util/demangle-rust.c b/tools/perf/util/demangle-rust.c
index f9dafa888c06..423afbbd386b 100644
--- a/tools/perf/util/demangle-rust.c
+++ b/tools/perf/util/demangle-rust.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <string.h>
 #include "util.h"
 #include "debug.h"
diff --git a/tools/perf/util/demangle-rust.h b/tools/perf/util/demangle-rust.h
index 7b41ead7e0dd..2fca618b1aa5 100644
--- a/tools/perf/util/demangle-rust.h
+++ b/tools/perf/util/demangle-rust.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_DEMANGLE_RUST
 #define __PERF_DEMANGLE_RUST 1
 
diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index b9e087fb8247..d5b6f7f5baff 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <asm/bug.h>
 #include <linux/kernel.h>
 #include <sys/time.h>
@@ -6,9 +7,11 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <errno.h>
+#include <fcntl.h>
 #include "compress.h"
 #include "path.h"
 #include "symbol.h"
+#include "srcline.h"
 #include "dso.h"
 #include "machine.h"
 #include "auxtrace.h"
@@ -1200,6 +1203,8 @@ struct dso *dso__new(const char *name)
 		for (i = 0; i < MAP__NR_TYPES; ++i)
 			dso->symbols[i] = dso->symbol_names[i] = RB_ROOT;
 		dso->data.cache = RB_ROOT;
+		dso->inlined_nodes = RB_ROOT;
+		dso->srclines = RB_ROOT;
 		dso->data.fd = -1;
 		dso->data.status = DSO_DATA_STATUS_UNKNOWN;
 		dso->symtab_type = DSO_BINARY_TYPE__NOT_FOUND;
@@ -1231,6 +1236,10 @@ void dso__delete(struct dso *dso)
 	if (!RB_EMPTY_NODE(&dso->rb_node))
 		pr_err("DSO %s is still in rbtree when being deleted!\n",
 		       dso->long_name);
+
+	/* free inlines first, as they reference symbols */
+	inlines__tree_delete(&dso->inlined_nodes);
+	srcline__tree_delete(&dso->srclines);
 	for (i = 0; i < MAP__NR_TYPES; ++i)
 		symbols__delete(&dso->symbols[i]);
 
@@ -1365,9 +1374,9 @@ void __dsos__add(struct dsos *dsos, struct dso *dso)
 
 void dsos__add(struct dsos *dsos, struct dso *dso)
 {
-	pthread_rwlock_wrlock(&dsos->lock);
+	down_write(&dsos->lock);
 	__dsos__add(dsos, dso);
-	pthread_rwlock_unlock(&dsos->lock);
+	up_write(&dsos->lock);
 }
 
 struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
@@ -1386,9 +1395,9 @@ struct dso *__dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
 struct dso *dsos__find(struct dsos *dsos, const char *name, bool cmp_short)
 {
 	struct dso *dso;
-	pthread_rwlock_rdlock(&dsos->lock);
+	down_read(&dsos->lock);
 	dso = __dsos__find(dsos, name, cmp_short);
-	pthread_rwlock_unlock(&dsos->lock);
+	up_read(&dsos->lock);
 	return dso;
 }
 
@@ -1415,9 +1424,9 @@ struct dso *__dsos__findnew(struct dsos *dsos, const char *name)
 struct dso *dsos__findnew(struct dsos *dsos, const char *name)
 {
 	struct dso *dso;
-	pthread_rwlock_wrlock(&dsos->lock);
+	down_write(&dsos->lock);
 	dso = dso__get(__dsos__findnew(dsos, name));
-	pthread_rwlock_unlock(&dsos->lock);
+	up_write(&dsos->lock);
 	return dso;
 }
 
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index f886141678eb..c229dbe0277a 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_DSO
 #define __PERF_DSO
 
@@ -6,7 +7,7 @@
 #include <linux/rbtree.h>
 #include <sys/types.h>
 #include <stdbool.h>
-#include <pthread.h>
+#include "rwsem.h"
 #include <linux/types.h>
 #include <linux/bitops.h>
 #include "map.h"
@@ -129,7 +130,7 @@ struct dso_cache {
 struct dsos {
 	struct list_head head;
 	struct rb_root	 root;	/* rbtree root sorted by long name */
-	pthread_rwlock_t lock;
+	struct rw_semaphore lock;
 };
 
 struct auxtrace_cache;
@@ -141,6 +142,8 @@ struct dso {
 	struct rb_root	 *root;		/* root of rbtree that rb_node is in */
 	struct rb_root	 symbols[MAP__NR_TYPES];
 	struct rb_root	 symbol_names[MAP__NR_TYPES];
+	struct rb_root	 inlined_nodes;
+	struct rb_root	 srclines;
 	struct {
 		u64		addr;
 		struct symbol	*symbol;
diff --git a/tools/perf/util/dump-insn.c b/tools/perf/util/dump-insn.c
index ffbdb19f05d0..10988d3de7ce 100644
--- a/tools/perf/util/dump-insn.c
+++ b/tools/perf/util/dump-insn.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include "dump-insn.h"
 
diff --git a/tools/perf/util/dump-insn.h b/tools/perf/util/dump-insn.h
index 90fb115981cf..0e06280a8860 100644
--- a/tools/perf/util/dump-insn.h
+++ b/tools/perf/util/dump-insn.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_DUMP_INSN_H
 #define __PERF_DUMP_INSN_H 1
 
diff --git a/tools/perf/util/dwarf-regs.c b/tools/perf/util/dwarf-regs.c
index c708395b3cb6..db55eddce8cd 100644
--- a/tools/perf/util/dwarf-regs.c
+++ b/tools/perf/util/dwarf-regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * dwarf-regs.c : Mapping of DWARF debug register numbers into register names.
  *
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c
index 9e21538c42ae..6276b340f893 100644
--- a/tools/perf/util/env.c
+++ b/tools/perf/util/env.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "cpumap.h"
 #include "env.h"
 #include "util.h"
diff --git a/tools/perf/util/env.h b/tools/perf/util/env.h
index b164dfd2dcbf..1eb35b190b34 100644
--- a/tools/perf/util/env.h
+++ b/tools/perf/util/env.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_ENV_H
 #define __PERF_ENV_H
 
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 1c905ba3641b..97a8ef9980db 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1,5 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dirent.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <inttypes.h>
 #include <linux/kernel.h>
 #include <linux/types.h>
@@ -677,21 +679,21 @@ out:
 	return err;
 }
 
-int perf_event__synthesize_threads(struct perf_tool *tool,
-				   perf_event__handler_t process,
-				   struct machine *machine,
-				   bool mmap_data,
-				   unsigned int proc_map_timeout)
+static int __perf_event__synthesize_threads(struct perf_tool *tool,
+					    perf_event__handler_t process,
+					    struct machine *machine,
+					    bool mmap_data,
+					    unsigned int proc_map_timeout,
+					    struct dirent **dirent,
+					    int start,
+					    int num)
 {
-	DIR *proc;
-	char proc_path[PATH_MAX];
-	struct dirent *dirent;
 	union perf_event *comm_event, *mmap_event, *fork_event;
 	union perf_event *namespaces_event;
 	int err = -1;
-
-	if (machine__is_default_guest(machine))
-		return 0;
+	char *end;
+	pid_t pid;
+	int i;
 
 	comm_event = malloc(sizeof(comm_event->comm) + machine->id_hdr_size);
 	if (comm_event == NULL)
@@ -711,31 +713,25 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
 	if (namespaces_event == NULL)
 		goto out_free_fork;
 
-	snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir);
-	proc = opendir(proc_path);
-
-	if (proc == NULL)
-		goto out_free_namespaces;
-
-	while ((dirent = readdir(proc)) != NULL) {
-		char *end;
-		pid_t pid = strtol(dirent->d_name, &end, 10);
+	for (i = start; i < start + num; i++) {
+		if (!isdigit(dirent[i]->d_name[0]))
+			continue;
 
-		if (*end) /* only interested in proper numerical dirents */
+		pid = (pid_t)strtol(dirent[i]->d_name, &end, 10);
+		/* only interested in proper numerical dirents */
+		if (*end)
 			continue;
 		/*
- 		 * We may race with exiting thread, so don't stop just because
- 		 * one thread couldn't be synthesized.
- 		 */
+		 * We may race with exiting thread, so don't stop just because
+		 * one thread couldn't be synthesized.
+		 */
 		__event__synthesize_thread(comm_event, mmap_event, fork_event,
 					   namespaces_event, pid, 1, process,
 					   tool, machine, mmap_data,
 					   proc_map_timeout);
 	}
-
 	err = 0;
-	closedir(proc);
-out_free_namespaces:
+
 	free(namespaces_event);
 out_free_fork:
 	free(fork_event);
@@ -747,6 +743,118 @@ out:
 	return err;
 }
 
+struct synthesize_threads_arg {
+	struct perf_tool *tool;
+	perf_event__handler_t process;
+	struct machine *machine;
+	bool mmap_data;
+	unsigned int proc_map_timeout;
+	struct dirent **dirent;
+	int num;
+	int start;
+};
+
+static void *synthesize_threads_worker(void *arg)
+{
+	struct synthesize_threads_arg *args = arg;
+
+	__perf_event__synthesize_threads(args->tool, args->process,
+					 args->machine, args->mmap_data,
+					 args->proc_map_timeout, args->dirent,
+					 args->start, args->num);
+	return NULL;
+}
+
+int perf_event__synthesize_threads(struct perf_tool *tool,
+				   perf_event__handler_t process,
+				   struct machine *machine,
+				   bool mmap_data,
+				   unsigned int proc_map_timeout,
+				   unsigned int nr_threads_synthesize)
+{
+	struct synthesize_threads_arg *args = NULL;
+	pthread_t *synthesize_threads = NULL;
+	char proc_path[PATH_MAX];
+	struct dirent **dirent;
+	int num_per_thread;
+	int m, n, i, j;
+	int thread_nr;
+	int base = 0;
+	int err = -1;
+
+
+	if (machine__is_default_guest(machine))
+		return 0;
+
+	snprintf(proc_path, sizeof(proc_path), "%s/proc", machine->root_dir);
+	n = scandir(proc_path, &dirent, 0, alphasort);
+	if (n < 0)
+		return err;
+
+	if (nr_threads_synthesize == UINT_MAX)
+		thread_nr = sysconf(_SC_NPROCESSORS_ONLN);
+	else
+		thread_nr = nr_threads_synthesize;
+
+	if (thread_nr <= 1) {
+		err = __perf_event__synthesize_threads(tool, process,
+						       machine, mmap_data,
+						       proc_map_timeout,
+						       dirent, base, n);
+		goto free_dirent;
+	}
+	if (thread_nr > n)
+		thread_nr = n;
+
+	synthesize_threads = calloc(sizeof(pthread_t), thread_nr);
+	if (synthesize_threads == NULL)
+		goto free_dirent;
+
+	args = calloc(sizeof(*args), thread_nr);
+	if (args == NULL)
+		goto free_threads;
+
+	num_per_thread = n / thread_nr;
+	m = n % thread_nr;
+	for (i = 0; i < thread_nr; i++) {
+		args[i].tool = tool;
+		args[i].process = process;
+		args[i].machine = machine;
+		args[i].mmap_data = mmap_data;
+		args[i].proc_map_timeout = proc_map_timeout;
+		args[i].dirent = dirent;
+	}
+	for (i = 0; i < m; i++) {
+		args[i].num = num_per_thread + 1;
+		args[i].start = i * args[i].num;
+	}
+	if (i != 0)
+		base = args[i-1].start + args[i-1].num;
+	for (j = i; j < thread_nr; j++) {
+		args[j].num = num_per_thread;
+		args[j].start = base + (j - i) * args[i].num;
+	}
+
+	for (i = 0; i < thread_nr; i++) {
+		if (pthread_create(&synthesize_threads[i], NULL,
+				   synthesize_threads_worker, &args[i]))
+			goto out_join;
+	}
+	err = 0;
+out_join:
+	for (i = 0; i < thread_nr; i++)
+		pthread_join(synthesize_threads[i], NULL);
+	free(args);
+free_threads:
+	free(synthesize_threads);
+free_dirent:
+	for (i = 0; i < n; i++)
+		free(dirent[i]);
+	free(dirent);
+
+	return err;
+}
+
 struct process_symbol_args {
 	const char *name;
 	u64	   start;
@@ -1497,6 +1605,7 @@ int machine__resolve(struct machine *machine, struct addr_location *al,
 	al->sym = NULL;
 	al->cpu = sample->cpu;
 	al->socket = -1;
+	al->srcline = NULL;
 
 	if (al->cpu >= 0) {
 		struct perf_env *env = machine->env;
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index ee7bcc898d35..1ae95efbfb95 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_RECORD_H
 #define __PERF_RECORD_H
 
@@ -680,7 +681,8 @@ int perf_event__synthesize_cpu_map(struct perf_tool *tool,
 int perf_event__synthesize_threads(struct perf_tool *tool,
 				   perf_event__handler_t process,
 				   struct machine *machine, bool mmap_data,
-				   unsigned int proc_map_timeout);
+				   unsigned int proc_map_timeout,
+				   unsigned int nr_threads_synthesize);
 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
 				       perf_event__handler_t process,
 				       struct machine *machine);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 6a0d7ffbeba0..c6c891e154a6 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -33,9 +33,6 @@
 #include <linux/log2.h>
 #include <linux/err.h>
 
-static void perf_mmap__munmap(struct perf_mmap *map);
-static void perf_mmap__put(struct perf_mmap *map);
-
 #define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
 #define SID(e, x, y) xyarray__entry(e->sample_id, x, y)
 
@@ -704,129 +701,6 @@ static int perf_evlist__resume(struct perf_evlist *evlist)
 	return perf_evlist__set_paused(evlist, false);
 }
 
-/* When check_messup is true, 'end' must points to a good entry */
-static union perf_event *
-perf_mmap__read(struct perf_mmap *md, bool check_messup, u64 start,
-		u64 end, u64 *prev)
-{
-	unsigned char *data = md->base + page_size;
-	union perf_event *event = NULL;
-	int diff = end - start;
-
-	if (check_messup) {
-		/*
-		 * If we're further behind than half the buffer, there's a chance
-		 * the writer will bite our tail and mess up the samples under us.
-		 *
-		 * If we somehow ended up ahead of the 'end', we got messed up.
-		 *
-		 * In either case, truncate and restart at 'end'.
-		 */
-		if (diff > md->mask / 2 || diff < 0) {
-			fprintf(stderr, "WARNING: failed to keep up with mmap data.\n");
-
-			/*
-			 * 'end' points to a known good entry, start there.
-			 */
-			start = end;
-			diff = 0;
-		}
-	}
-
-	if (diff >= (int)sizeof(event->header)) {
-		size_t size;
-
-		event = (union perf_event *)&data[start & md->mask];
-		size = event->header.size;
-
-		if (size < sizeof(event->header) || diff < (int)size) {
-			event = NULL;
-			goto broken_event;
-		}
-
-		/*
-		 * Event straddles the mmap boundary -- header should always
-		 * be inside due to u64 alignment of output.
-		 */
-		if ((start & md->mask) + size != ((start + size) & md->mask)) {
-			unsigned int offset = start;
-			unsigned int len = min(sizeof(*event), size), cpy;
-			void *dst = md->event_copy;
-
-			do {
-				cpy = min(md->mask + 1 - (offset & md->mask), len);
-				memcpy(dst, &data[offset & md->mask], cpy);
-				offset += cpy;
-				dst += cpy;
-				len -= cpy;
-			} while (len);
-
-			event = (union perf_event *) md->event_copy;
-		}
-
-		start += size;
-	}
-
-broken_event:
-	if (prev)
-		*prev = start;
-
-	return event;
-}
-
-union perf_event *perf_mmap__read_forward(struct perf_mmap *md, bool check_messup)
-{
-	u64 head;
-	u64 old = md->prev;
-
-	/*
-	 * Check if event was unmapped due to a POLLHUP/POLLERR.
-	 */
-	if (!refcount_read(&md->refcnt))
-		return NULL;
-
-	head = perf_mmap__read_head(md);
-
-	return perf_mmap__read(md, check_messup, old, head, &md->prev);
-}
-
-union perf_event *
-perf_mmap__read_backward(struct perf_mmap *md)
-{
-	u64 head, end;
-	u64 start = md->prev;
-
-	/*
-	 * Check if event was unmapped due to a POLLHUP/POLLERR.
-	 */
-	if (!refcount_read(&md->refcnt))
-		return NULL;
-
-	head = perf_mmap__read_head(md);
-	if (!head)
-		return NULL;
-
-	/*
-	 * 'head' pointer starts from 0. Kernel minus sizeof(record) form
-	 * it each time when kernel writes to it, so in fact 'head' is
-	 * negative. 'end' pointer is made manually by adding the size of
-	 * the ring buffer to 'head' pointer, means the validate data can
-	 * read is the whole ring buffer. If 'end' is positive, the ring
-	 * buffer has not fully filled, so we must adjust 'end' to 0.
-	 *
-	 * However, since both 'head' and 'end' is unsigned, we can't
-	 * simply compare 'end' against 0. Here we compare '-head' and
-	 * the size of the ring buffer, where -head is the number of bytes
-	 * kernel write to the ring buffer.
-	 */
-	if (-head < (u64)(md->mask + 1))
-		end = 0;
-	else
-		end = head + md->mask + 1;
-
-	return perf_mmap__read(md, false, start, end, &md->prev);
-}
-
 union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist, int idx)
 {
 	struct perf_mmap *md = &evlist->mmap[idx];
@@ -857,96 +731,16 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
 	return perf_evlist__mmap_read_forward(evlist, idx);
 }
 
-void perf_mmap__read_catchup(struct perf_mmap *md)
-{
-	u64 head;
-
-	if (!refcount_read(&md->refcnt))
-		return;
-
-	head = perf_mmap__read_head(md);
-	md->prev = head;
-}
-
 void perf_evlist__mmap_read_catchup(struct perf_evlist *evlist, int idx)
 {
 	perf_mmap__read_catchup(&evlist->mmap[idx]);
 }
 
-static bool perf_mmap__empty(struct perf_mmap *md)
-{
-	return perf_mmap__read_head(md) == md->prev && !md->auxtrace_mmap.base;
-}
-
-static void perf_mmap__get(struct perf_mmap *map)
-{
-	refcount_inc(&map->refcnt);
-}
-
-static void perf_mmap__put(struct perf_mmap *md)
-{
-	BUG_ON(md->base && refcount_read(&md->refcnt) == 0);
-
-	if (refcount_dec_and_test(&md->refcnt))
-		perf_mmap__munmap(md);
-}
-
-void perf_mmap__consume(struct perf_mmap *md, bool overwrite)
-{
-	if (!overwrite) {
-		u64 old = md->prev;
-
-		perf_mmap__write_tail(md, old);
-	}
-
-	if (refcount_read(&md->refcnt) == 1 && perf_mmap__empty(md))
-		perf_mmap__put(md);
-}
-
 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx)
 {
 	perf_mmap__consume(&evlist->mmap[idx], evlist->overwrite);
 }
 
-int __weak auxtrace_mmap__mmap(struct auxtrace_mmap *mm __maybe_unused,
-			       struct auxtrace_mmap_params *mp __maybe_unused,
-			       void *userpg __maybe_unused,
-			       int fd __maybe_unused)
-{
-	return 0;
-}
-
-void __weak auxtrace_mmap__munmap(struct auxtrace_mmap *mm __maybe_unused)
-{
-}
-
-void __weak auxtrace_mmap_params__init(
-			struct auxtrace_mmap_params *mp __maybe_unused,
-			off_t auxtrace_offset __maybe_unused,
-			unsigned int auxtrace_pages __maybe_unused,
-			bool auxtrace_overwrite __maybe_unused)
-{
-}
-
-void __weak auxtrace_mmap_params__set_idx(
-			struct auxtrace_mmap_params *mp __maybe_unused,
-			struct perf_evlist *evlist __maybe_unused,
-			int idx __maybe_unused,
-			bool per_cpu __maybe_unused)
-{
-}
-
-static void perf_mmap__munmap(struct perf_mmap *map)
-{
-	if (map->base != NULL) {
-		munmap(map->base, perf_mmap__mmap_len(map));
-		map->base = NULL;
-		map->fd = -1;
-		refcount_set(&map->refcnt, 0);
-	}
-	auxtrace_mmap__munmap(&map->auxtrace_mmap);
-}
-
 static void perf_evlist__munmap_nofree(struct perf_evlist *evlist)
 {
 	int i;
@@ -995,48 +789,6 @@ static struct perf_mmap *perf_evlist__alloc_mmap(struct perf_evlist *evlist)
 	return map;
 }
 
-struct mmap_params {
-	int prot;
-	int mask;
-	struct auxtrace_mmap_params auxtrace_mp;
-};
-
-static int perf_mmap__mmap(struct perf_mmap *map,
-			   struct mmap_params *mp, int fd)
-{
-	/*
-	 * The last one will be done at perf_evlist__mmap_consume(), so that we
-	 * make sure we don't prevent tools from consuming every last event in
-	 * the ring buffer.
-	 *
-	 * I.e. we can get the POLLHUP meaning that the fd doesn't exist
-	 * anymore, but the last events for it are still in the ring buffer,
-	 * waiting to be consumed.
-	 *
-	 * Tools can chose to ignore this at their own discretion, but the
-	 * evlist layer can't just drop it when filtering events in
-	 * perf_evlist__filter_pollfd().
-	 */
-	refcount_set(&map->refcnt, 2);
-	map->prev = 0;
-	map->mask = mp->mask;
-	map->base = mmap(NULL, perf_mmap__mmap_len(map), mp->prot,
-			 MAP_SHARED, fd, 0);
-	if (map->base == MAP_FAILED) {
-		pr_debug2("failed to mmap perf event ring buffer, error %d\n",
-			  errno);
-		map->base = NULL;
-		return -1;
-	}
-	map->fd = fd;
-
-	if (auxtrace_mmap__mmap(&map->auxtrace_mmap,
-				&mp->auxtrace_mp, map->base, fd))
-		return -1;
-
-	return 0;
-}
-
 static bool
 perf_evlist__should_poll(struct perf_evlist *evlist __maybe_unused,
 			 struct perf_evsel *evsel)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index bf2c4936e35f..e72ae64c11ac 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_EVLIST_H
 #define __PERF_EVLIST_H 1
 
@@ -6,12 +7,13 @@
 #include <linux/refcount.h>
 #include <linux/list.h>
 #include <api/fd/array.h>
+#include <fcntl.h>
 #include <stdio.h>
 #include "../perf.h"
 #include "event.h"
 #include "evsel.h"
+#include "mmap.h"
 #include "util.h"
-#include "auxtrace.h"
 #include <signal.h>
 #include <unistd.h>
 
@@ -23,55 +25,6 @@ struct record_opts;
 #define PERF_EVLIST__HLIST_BITS 8
 #define PERF_EVLIST__HLIST_SIZE (1 << PERF_EVLIST__HLIST_BITS)
 
-/**
- * struct perf_mmap - perf's ring buffer mmap details
- *
- * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
- */
-struct perf_mmap {
-	void		 *base;
-	int		 mask;
-	int		 fd;
-	refcount_t	 refcnt;
-	u64		 prev;
-	struct auxtrace_mmap auxtrace_mmap;
-	char		 event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8);
-};
-
-static inline size_t
-perf_mmap__mmap_len(struct perf_mmap *map)
-{
-	return map->mask + 1 + page_size;
-}
-
-/*
- * State machine of bkw_mmap_state:
- *
- *                     .________________(forbid)_____________.
- *                     |                                     V
- * NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
- *                     ^  ^              |   ^               |
- *                     |  |__(forbid)____/   |___(forbid)___/|
- *                     |                                     |
- *                      \_________________(3)_______________/
- *
- * NOTREADY     : Backward ring buffers are not ready
- * RUNNING      : Backward ring buffers are recording
- * DATA_PENDING : We are required to collect data from backward ring buffers
- * EMPTY        : We have collected data from backward ring buffers.
- *
- * (0): Setup backward ring buffer
- * (1): Pause ring buffers for reading
- * (2): Read from ring buffers
- * (3): Resume ring buffers for recording
- */
-enum bkw_mmap_state {
-	BKW_MMAP_NOTREADY,
-	BKW_MMAP_RUNNING,
-	BKW_MMAP_DATA_PENDING,
-	BKW_MMAP_EMPTY,
-};
-
 struct perf_evlist {
 	struct list_head entries;
 	struct hlist_head heads[PERF_EVLIST__HLIST_SIZE];
@@ -176,12 +129,6 @@ struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
 
 void perf_evlist__toggle_bkw_mmap(struct perf_evlist *evlist, enum bkw_mmap_state state);
 
-union perf_event *perf_mmap__read_forward(struct perf_mmap *map, bool check_messup);
-union perf_event *perf_mmap__read_backward(struct perf_mmap *map);
-
-void perf_mmap__read_catchup(struct perf_mmap *md);
-void perf_mmap__consume(struct perf_mmap *md, bool overwrite);
-
 union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
 
 union perf_event *perf_evlist__mmap_read_forward(struct perf_evlist *evlist,
@@ -285,25 +232,6 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
 int perf_evlist__strerror_mmap(struct perf_evlist *evlist, int err, char *buf, size_t size);
 
-static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
-{
-	struct perf_event_mmap_page *pc = mm->base;
-	u64 head = ACCESS_ONCE(pc->data_head);
-	rmb();
-	return head;
-}
-
-static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
-{
-	struct perf_event_mmap_page *pc = md->base;
-
-	/*
-	 * ensure all reads are done before we write the tail out.
-	 */
-	mb();
-	pc->data_tail = tail;
-}
-
 bool perf_evlist__can_select_event(struct perf_evlist *evlist, const char *str);
 void perf_evlist__to_front(struct perf_evlist *evlist,
 			   struct perf_evsel *move_evsel);
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 4bb89373eb52..f894893c203d 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -271,12 +271,17 @@ struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
 	return evsel;
 }
 
+static bool perf_event_can_profile_kernel(void)
+{
+	return geteuid() == 0 || perf_event_paranoid() == -1;
+}
+
 struct perf_evsel *perf_evsel__new_cycles(bool precise)
 {
 	struct perf_event_attr attr = {
 		.type	= PERF_TYPE_HARDWARE,
 		.config	= PERF_COUNT_HW_CPU_CYCLES,
-		.exclude_kernel	= geteuid() != 0,
+		.exclude_kernel	= !perf_event_can_profile_kernel(),
 	};
 	struct perf_evsel *evsel;
 
@@ -678,7 +683,7 @@ void perf_evsel__config_callchain(struct perf_evsel *evsel,
 		if (!function) {
 			perf_evsel__set_sample_bit(evsel, REGS_USER);
 			perf_evsel__set_sample_bit(evsel, STACK_USER);
-			attr->sample_regs_user = PERF_REGS_MASK;
+			attr->sample_regs_user |= PERF_REGS_MASK;
 			attr->sample_stack_user = param->dump_size;
 			attr->exclude_callchain_user = 1;
 		} else {
@@ -931,6 +936,11 @@ void perf_evsel__config(struct perf_evsel *evsel, struct record_opts *opts,
 		perf_evsel__set_sample_bit(evsel, REGS_INTR);
 	}
 
+	if (opts->sample_user_regs) {
+		attr->sample_regs_user |= opts->sample_user_regs;
+		perf_evsel__set_sample_bit(evsel, REGS_USER);
+	}
+
 	if (target__has_cpu(&opts->target) || opts->sample_cpu)
 		perf_evsel__set_sample_bit(evsel, CPU);
 
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index dd2c4b5112a5..9277df96ffda 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_EVSEL_H
 #define __PERF_EVSEL_H 1
 
@@ -68,6 +69,8 @@ struct perf_evsel_config_term {
 	} val;
 };
 
+struct perf_stat_evsel;
+
 /** struct perf_evsel - event selector
  *
  * @evlist - evlist this evsel is in, if it is in one.
@@ -101,6 +104,7 @@ struct perf_evsel {
 	const char		*unit;
 	struct event_format	*tp_format;
 	off_t			id_offset;
+	struct perf_stat_evsel  *stats;
 	void			*priv;
 	u64			db_id;
 	struct cgroup_sel	*cgrp;
@@ -137,6 +141,7 @@ struct perf_evsel {
 	const char *		metric_name;
 	struct perf_evsel	**metric_events;
 	bool			collect_stat;
+	bool			weak_group;
 };
 
 union u64_swap {
diff --git a/tools/perf/util/evsel_fprintf.c b/tools/perf/util/evsel_fprintf.c
index 583f3a602506..06dfb027879d 100644
--- a/tools/perf/util/evsel_fprintf.c
+++ b/tools/perf/util/evsel_fprintf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <stdio.h>
 #include <stdbool.h>
@@ -157,7 +158,7 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 				}
 			}
 
-			if (print_dso) {
+			if (print_dso && (!node->sym || !node->sym->inlined)) {
 				printed += fprintf(fp, " (");
 				printed += map__fprintf_dsoname(node->map, fp);
 				printed += fprintf(fp, ")");
@@ -166,41 +167,12 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 			if (print_srcline)
 				printed += map__fprintf_srcline(node->map, addr, "\n  ", fp);
 
+			if (node->sym && node->sym->inlined)
+				printed += fprintf(fp, " (inlined)");
+
 			if (!print_oneline)
 				printed += fprintf(fp, "\n");
 
-			if (symbol_conf.inline_name && node->map) {
-				struct inline_node *inode;
-
-				addr = map__rip_2objdump(node->map, node->ip),
-				inode = dso__parse_addr_inlines(node->map->dso, addr);
-
-				if (inode) {
-					struct inline_list *ilist;
-
-					list_for_each_entry(ilist, &inode->val, list) {
-						if (print_arrow)
-							printed += fprintf(fp, " <-");
-
-						/* IP is same, just skip it */
-						if (print_ip)
-							printed += fprintf(fp, "%c%16s",
-									   s, "");
-						if (print_sym)
-							printed += fprintf(fp, " %s",
-									   ilist->funcname);
-						if (print_srcline)
-							printed += fprintf(fp, "\n  %s:%d",
-									   ilist->filename,
-									   ilist->line_nr);
-						if (!print_oneline)
-							printed += fprintf(fp, "\n");
-					}
-
-					inline_node__delete(inode);
-				}
-			}
-
 			if (symbol_conf.bt_stop_list &&
 			    node->sym &&
 			    strlist__has_entry(symbol_conf.bt_stop_list,
diff --git a/tools/perf/util/expr.h b/tools/perf/util/expr.h
index 400ef9eab00a..046160831f90 100644
--- a/tools/perf/util/expr.h
+++ b/tools/perf/util/expr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PARSE_CTX_H
 #define PARSE_CTX_H 1
 
diff --git a/tools/perf/util/find-vdso-map.c b/tools/perf/util/find-vdso-map.c
index 95ef1cffc056..d7823e3508fc 100644
--- a/tools/perf/util/find-vdso-map.c
+++ b/tools/perf/util/find-vdso-map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 static int find_vdso_map(void **start, void **end)
 {
 	FILE *maps;
diff --git a/tools/perf/util/genelf.h b/tools/perf/util/genelf.h
index 2424bd9862a3..de322d51c7fe 100644
--- a/tools/perf/util/genelf.h
+++ b/tools/perf/util/genelf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __GENELF_H__
 #define __GENELF_H__
 
diff --git a/tools/perf/util/generate-cmdlist.sh b/tools/perf/util/generate-cmdlist.sh
index 0ac2037c970c..9bbcec4e3365 100755
--- a/tools/perf/util/generate-cmdlist.sh
+++ b/tools/perf/util/generate-cmdlist.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 echo "/* Automatically generated by $0 */
 struct cmdname_help
diff --git a/tools/perf/util/group.h b/tools/perf/util/group.h
index 116debe7a995..f36c7e31780a 100644
--- a/tools/perf/util/group.h
+++ b/tools/perf/util/group.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GROUP_H
 #define GROUP_H 1
 
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 605bbd5404fb..7c0e9d587bfa 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include "util.h"
@@ -1762,7 +1763,7 @@ process_event_desc(struct feat_fd *ff, void *data __maybe_unused)
 
 	session = container_of(ff->ph, struct perf_session, header);
 
-	if (session->file->is_pipe) {
+	if (session->data->is_pipe) {
 		/* Save events for reading later by print_event_desc,
 		 * since they can't be read again in pipe mode. */
 		ff->events = events;
@@ -1771,7 +1772,7 @@ process_event_desc(struct feat_fd *ff, void *data __maybe_unused)
 	for (evsel = events; evsel->attr.size; evsel++)
 		perf_evlist__set_event_name(session->evlist, evsel);
 
-	if (!session->file->is_pipe)
+	if (!session->data->is_pipe)
 		free_event_desc(events);
 
 	return 0;
@@ -2248,7 +2249,7 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
 {
 	struct header_print_data hd;
 	struct perf_header *header = &session->header;
-	int fd = perf_data_file__fd(session->file);
+	int fd = perf_data__fd(session->data);
 	struct stat st;
 	int ret, bit;
 
@@ -2264,7 +2265,7 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
 	perf_header__process_sections(header, fd, &hd,
 				      perf_file_section__fprintf_info);
 
-	if (session->file->is_pipe)
+	if (session->data->is_pipe)
 		return 0;
 
 	fprintf(fp, "# missing features: ");
@@ -2757,7 +2758,7 @@ static int perf_header__read_pipe(struct perf_session *session)
 	struct perf_pipe_file_header f_header;
 
 	if (perf_file_header__read_pipe(&f_header, header,
-					perf_data_file__fd(session->file),
+					perf_data__fd(session->data),
 					session->repipe) < 0) {
 		pr_debug("incompatible file format\n");
 		return -EINVAL;
@@ -2860,13 +2861,13 @@ static int perf_evlist__prepare_tracepoint_events(struct perf_evlist *evlist,
 
 int perf_session__read_header(struct perf_session *session)
 {
-	struct perf_data_file *file = session->file;
+	struct perf_data *data = session->data;
 	struct perf_header *header = &session->header;
 	struct perf_file_header	f_header;
 	struct perf_file_attr	f_attr;
 	u64			f_id;
 	int nr_attrs, nr_ids, i, j;
-	int fd = perf_data_file__fd(file);
+	int fd = perf_data__fd(data);
 
 	session->evlist = perf_evlist__new();
 	if (session->evlist == NULL)
@@ -2874,7 +2875,7 @@ int perf_session__read_header(struct perf_session *session)
 
 	session->evlist->env = &header->env;
 	session->machines.host.env = &header->env;
-	if (perf_data_file__is_pipe(file))
+	if (perf_data__is_pipe(data))
 		return perf_header__read_pipe(session);
 
 	if (perf_file_header__read(&f_header, header, fd) < 0)
@@ -2889,7 +2890,7 @@ int perf_session__read_header(struct perf_session *session)
 	if (f_header.data.size == 0) {
 		pr_warning("WARNING: The %s file's data size field is 0 which is unexpected.\n"
 			   "Was the 'perf record' command properly terminated?\n",
-			   file->path);
+			   data->file.path);
 	}
 
 	nr_attrs = f_header.attrs.size / f_header.attr_size;
@@ -3397,7 +3398,7 @@ int perf_event__process_tracing_data(struct perf_tool *tool __maybe_unused,
 				     struct perf_session *session)
 {
 	ssize_t size_read, padding, size = event->tracing_data.size;
-	int fd = perf_data_file__fd(session->file);
+	int fd = perf_data__fd(session->data);
 	off_t offset = lseek(fd, 0, SEEK_CUR);
 	char buf[BUFSIZ];
 
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index f7a16ee527b8..29ccbfdf8724 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_HEADER_H
 #define __PERF_HEADER_H
 
diff --git a/tools/perf/util/help-unknown-cmd.c b/tools/perf/util/help-unknown-cmd.c
index 15b95300d7f3..4f07a5ba5030 100644
--- a/tools/perf/util/help-unknown-cmd.c
+++ b/tools/perf/util/help-unknown-cmd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "cache.h"
 #include "config.h"
 #include <poll.h>
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index e60d8d8ea4c2..b6140950301e 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util.h"
 #include "build-id.h"
 #include "hist.h"
@@ -596,6 +597,7 @@ __hists__add_entry(struct hists *hists,
 			.map	= al->map,
 			.sym	= al->sym,
 		},
+		.srcline = al->srcline ? strdup(al->srcline) : NULL,
 		.socket	 = al->socket,
 		.cpu	 = al->cpu,
 		.cpumode = al->cpumode,
@@ -950,6 +952,7 @@ iter_add_next_cumulative_entry(struct hist_entry_iter *iter,
 			.map = al->map,
 			.sym = al->sym,
 		},
+		.srcline = al->srcline ? strdup(al->srcline) : NULL,
 		.parent = iter->parent,
 		.raw_data = sample->raw_data,
 		.raw_size = sample->raw_size,
@@ -1141,11 +1144,6 @@ void hist_entry__delete(struct hist_entry *he)
 		zfree(&he->mem_info);
 	}
 
-	if (he->inline_node) {
-		inline_node__delete(he->inline_node);
-		he->inline_node = NULL;
-	}
-
 	zfree(&he->stat_acc);
 	free_srcline(he->srcline);
 	if (he->srcfile && he->srcfile[0])
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index e60dda26a920..f6630cb95eff 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_HIST_H
 #define __PERF_HIST_H
 
diff --git a/tools/perf/util/include/asm/asm-offsets.h b/tools/perf/util/include/asm/asm-offsets.h
index ed538942523d..3aff4cf44944 100644
--- a/tools/perf/util/include/asm/asm-offsets.h
+++ b/tools/perf/util/include/asm/asm-offsets.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* stub */
diff --git a/tools/perf/util/include/asm/cpufeature.h b/tools/perf/util/include/asm/cpufeature.h
index acffd5e4d1d4..2270481c7e0a 100644
--- a/tools/perf/util/include/asm/cpufeature.h
+++ b/tools/perf/util/include/asm/cpufeature.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef PERF_CPUFEATURE_H
 #define PERF_CPUFEATURE_H
diff --git a/tools/perf/util/include/asm/dwarf2.h b/tools/perf/util/include/asm/dwarf2.h
index afe38199e922..e9876be63dbf 100644
--- a/tools/perf/util/include/asm/dwarf2.h
+++ b/tools/perf/util/include/asm/dwarf2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef PERF_DWARF2_H
 #define PERF_DWARF2_H
diff --git a/tools/perf/util/include/asm/uaccess.h b/tools/perf/util/include/asm/uaccess.h
index d0f72b8fcc35..6a6f4b990547 100644
--- a/tools/perf/util/include/asm/uaccess.h
+++ b/tools/perf/util/include/asm/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_ASM_UACCESS_H_
 #define _PERF_ASM_UACCESS_H_
 
diff --git a/tools/perf/util/include/dwarf-regs.h b/tools/perf/util/include/dwarf-regs.h
index 43bfd8da7919..7d99a084e82d 100644
--- a/tools/perf/util/include/dwarf-regs.h
+++ b/tools/perf/util/include/dwarf-regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_DWARF_REGS_H_
 #define _PERF_DWARF_REGS_H_
 
diff --git a/tools/perf/util/include/linux/linkage.h b/tools/perf/util/include/linux/linkage.h
index 06387cffe125..f01d48a8d707 100644
--- a/tools/perf/util/include/linux/linkage.h
+++ b/tools/perf/util/include/linux/linkage.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef PERF_LINUX_LINKAGE_H_
 #define PERF_LINUX_LINKAGE_H_
diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
index 218ee2bac9a5..5325e65f9711 100644
--- a/tools/perf/util/intel-bts.c
+++ b/tools/perf/util/intel-bts.c
@@ -500,7 +500,7 @@ static int intel_bts_process_queue(struct intel_bts_queue *btsq, u64 *timestamp)
 	}
 
 	if (!buffer->data) {
-		int fd = perf_data_file__fd(btsq->bts->session->file);
+		int fd = perf_data__fd(btsq->bts->session->data);
 
 		buffer->data = auxtrace_buffer__get_data(buffer, fd);
 		if (!buffer->data) {
@@ -664,10 +664,10 @@ static int intel_bts_process_auxtrace_event(struct perf_session *session,
 	if (!bts->data_queued) {
 		struct auxtrace_buffer *buffer;
 		off_t data_offset;
-		int fd = perf_data_file__fd(session->file);
+		int fd = perf_data__fd(session->data);
 		int err;
 
-		if (perf_data_file__is_pipe(session->file)) {
+		if (perf_data__is_pipe(session->data)) {
 			data_offset = 0;
 		} else {
 			data_offset = lseek(fd, 0, SEEK_CUR);
diff --git a/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk b/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
index 54e961659514..ddd5c4c21129 100644
--- a/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
+++ b/tools/perf/util/intel-pt-decoder/gen-insn-attr-x86.awk
@@ -1,4 +1,5 @@
 #!/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 # gen-insn-attr-x86.awk: Instruction attribute table generator
 # Written by Masami Hiramatsu <mhiramat@redhat.com>
 #
diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index b58f9fd1e2ee..23f9ba676df0 100644
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -271,7 +271,7 @@ next:
 	ptq->buffer = buffer;
 
 	if (!buffer->data) {
-		int fd = perf_data_file__fd(ptq->pt->session->file);
+		int fd = perf_data__fd(ptq->pt->session->data);
 
 		buffer->data = auxtrace_buffer__get_data(buffer, fd);
 		if (!buffer->data)
@@ -2084,10 +2084,10 @@ static int intel_pt_process_auxtrace_event(struct perf_session *session,
 	if (!pt->data_queued) {
 		struct auxtrace_buffer *buffer;
 		off_t data_offset;
-		int fd = perf_data_file__fd(session->file);
+		int fd = perf_data__fd(session->data);
 		int err;
 
-		if (perf_data_file__is_pipe(session->file)) {
+		if (perf_data__is_pipe(session->data)) {
 			data_offset = 0;
 		} else {
 			data_offset = lseek(fd, 0, SEEK_CUR);
diff --git a/tools/perf/util/intlist.h b/tools/perf/util/intlist.h
index 020b9ca1b47e..85bab8735fa9 100644
--- a/tools/perf/util/intlist.h
+++ b/tools/perf/util/intlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_INTLIST_H
 #define __PERF_INTLIST_H
 
diff --git a/tools/perf/util/jit.h b/tools/perf/util/jit.h
index 3f42ee4d2a0b..6817ffc2a059 100644
--- a/tools/perf/util/jit.h
+++ b/tools/perf/util/jit.h
@@ -1,9 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __JIT_H__
 #define __JIT_H__
 
 #include <data.h>
 
-int jit_process(struct perf_session *session, struct perf_data_file *output,
+int jit_process(struct perf_session *session, struct perf_data *output,
 		struct machine *machine, char *filename, pid_t pid, u64 *nbytes);
 
 int jit_inject_record(const char *filename);
diff --git a/tools/perf/util/jitdump.c b/tools/perf/util/jitdump.c
index 9084930e1757..a1863000e972 100644
--- a/tools/perf/util/jitdump.c
+++ b/tools/perf/util/jitdump.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/sysmacros.h>
 #include <sys/types.h>
 #include <errno.h>
@@ -29,7 +30,7 @@
 #include "sane_ctype.h"
 
 struct jit_buf_desc {
-	struct perf_data_file *output;
+	struct perf_data *output;
 	struct perf_session *session;
 	struct machine *machine;
 	union jr_entry   *entry;
@@ -60,8 +61,8 @@ struct debug_line_info {
 
 struct jit_tool {
 	struct perf_tool tool;
-	struct perf_data_file	output;
-	struct perf_data_file	input;
+	struct perf_data	output;
+	struct perf_data	input;
 	u64 bytes_written;
 };
 
@@ -356,7 +357,7 @@ jit_inject_event(struct jit_buf_desc *jd, union perf_event *event)
 {
 	ssize_t size;
 
-	size = perf_data_file__write(jd->output, event, event->header.size);
+	size = perf_data__write(jd->output, event, event->header.size);
 	if (size < 0)
 		return -1;
 
@@ -751,7 +752,7 @@ jit_detect(char *mmap_name, pid_t pid)
 
 int
 jit_process(struct perf_session *session,
-	    struct perf_data_file *output,
+	    struct perf_data *output,
 	    struct machine *machine,
 	    char *filename,
 	    pid_t pid,
diff --git a/tools/perf/util/kvm-stat.h b/tools/perf/util/kvm-stat.h
index d01e73592f6e..7b1f06567521 100644
--- a/tools/perf/util/kvm-stat.h
+++ b/tools/perf/util/kvm-stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_KVM_STAT_H
 #define __PERF_KVM_STAT_H
 
diff --git a/tools/perf/util/levenshtein.c b/tools/perf/util/levenshtein.c
index f616e4f65b67..a217ecf0359d 100644
--- a/tools/perf/util/levenshtein.c
+++ b/tools/perf/util/levenshtein.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "levenshtein.h"
 #include <errno.h>
 #include <stdlib.h>
diff --git a/tools/perf/util/levenshtein.h b/tools/perf/util/levenshtein.h
index b0fcb6d8a881..34ca173c557d 100644
--- a/tools/perf/util/levenshtein.h
+++ b/tools/perf/util/levenshtein.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_LEVENSHTEIN_H
 #define __PERF_LEVENSHTEIN_H
 
diff --git a/tools/perf/util/libunwind/arm64.c b/tools/perf/util/libunwind/arm64.c
index 6559bc586643..66756e6be111 100644
--- a/tools/perf/util/libunwind/arm64.c
+++ b/tools/perf/util/libunwind/arm64.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file setups defines to compile arch specific binary from the
  * generic one.
diff --git a/tools/perf/util/libunwind/x86_32.c b/tools/perf/util/libunwind/x86_32.c
index 957ffff72428..c5e568188e19 100644
--- a/tools/perf/util/libunwind/x86_32.c
+++ b/tools/perf/util/libunwind/x86_32.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * This file setups defines to compile arch specific binary from the
  * generic one.
diff --git a/tools/perf/util/llvm-utils.c b/tools/perf/util/llvm-utils.c
index 209b0c82eff4..4952b429caa7 100644
--- a/tools/perf/util/llvm-utils.c
+++ b/tools/perf/util/llvm-utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015, Huawei Inc.
diff --git a/tools/perf/util/llvm-utils.h b/tools/perf/util/llvm-utils.h
index c87a2a92a88f..d3ad8deb5db4 100644
--- a/tools/perf/util/llvm-utils.h
+++ b/tools/perf/util/llvm-utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
  * Copyright (C) 2015, Huawei Inc.
diff --git a/tools/perf/util/lzma.c b/tools/perf/util/lzma.c
index 4ca7c5c6cdcd..07498eaddc08 100644
--- a/tools/perf/util/lzma.c
+++ b/tools/perf/util/lzma.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <lzma.h>
 #include <stdio.h>
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index df709363ef69..6a8d03c3d9b7 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dirent.h>
 #include <errno.h>
 #include <inttypes.h>
@@ -30,7 +31,21 @@ static void dsos__init(struct dsos *dsos)
 {
 	INIT_LIST_HEAD(&dsos->head);
 	dsos->root = RB_ROOT;
-	pthread_rwlock_init(&dsos->lock, NULL);
+	init_rwsem(&dsos->lock);
+}
+
+static void machine__threads_init(struct machine *machine)
+{
+	int i;
+
+	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
+		struct threads *threads = &machine->threads[i];
+		threads->entries = RB_ROOT;
+		init_rwsem(&threads->lock);
+		threads->nr = 0;
+		INIT_LIST_HEAD(&threads->dead);
+		threads->last_match = NULL;
+	}
 }
 
 int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
@@ -40,11 +55,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 	RB_CLEAR_NODE(&machine->rb_node);
 	dsos__init(&machine->dsos);
 
-	machine->threads = RB_ROOT;
-	pthread_rwlock_init(&machine->threads_lock, NULL);
-	machine->nr_threads = 0;
-	INIT_LIST_HEAD(&machine->dead_threads);
-	machine->last_match = NULL;
+	machine__threads_init(machine);
 
 	machine->vdso_info = NULL;
 	machine->env = NULL;
@@ -120,7 +131,7 @@ static void dsos__purge(struct dsos *dsos)
 {
 	struct dso *pos, *n;
 
-	pthread_rwlock_wrlock(&dsos->lock);
+	down_write(&dsos->lock);
 
 	list_for_each_entry_safe(pos, n, &dsos->head, node) {
 		RB_CLEAR_NODE(&pos->rb_node);
@@ -129,39 +140,49 @@ static void dsos__purge(struct dsos *dsos)
 		dso__put(pos);
 	}
 
-	pthread_rwlock_unlock(&dsos->lock);
+	up_write(&dsos->lock);
 }
 
 static void dsos__exit(struct dsos *dsos)
 {
 	dsos__purge(dsos);
-	pthread_rwlock_destroy(&dsos->lock);
+	exit_rwsem(&dsos->lock);
 }
 
 void machine__delete_threads(struct machine *machine)
 {
 	struct rb_node *nd;
+	int i;
 
-	pthread_rwlock_wrlock(&machine->threads_lock);
-	nd = rb_first(&machine->threads);
-	while (nd) {
-		struct thread *t = rb_entry(nd, struct thread, rb_node);
+	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
+		struct threads *threads = &machine->threads[i];
+		down_write(&threads->lock);
+		nd = rb_first(&threads->entries);
+		while (nd) {
+			struct thread *t = rb_entry(nd, struct thread, rb_node);
 
-		nd = rb_next(nd);
-		__machine__remove_thread(machine, t, false);
+			nd = rb_next(nd);
+			__machine__remove_thread(machine, t, false);
+		}
+		up_write(&threads->lock);
 	}
-	pthread_rwlock_unlock(&machine->threads_lock);
 }
 
 void machine__exit(struct machine *machine)
 {
+	int i;
+
 	machine__destroy_kernel_maps(machine);
 	map_groups__exit(&machine->kmaps);
 	dsos__exit(&machine->dsos);
 	machine__exit_vdso(machine);
 	zfree(&machine->root_dir);
 	zfree(&machine->current_tid);
-	pthread_rwlock_destroy(&machine->threads_lock);
+
+	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
+		struct threads *threads = &machine->threads[i];
+		exit_rwsem(&threads->lock);
+	}
 }
 
 void machine__delete(struct machine *machine)
@@ -379,10 +400,11 @@ out_err:
  * lookup/new thread inserted.
  */
 static struct thread *____machine__findnew_thread(struct machine *machine,
+						  struct threads *threads,
 						  pid_t pid, pid_t tid,
 						  bool create)
 {
-	struct rb_node **p = &machine->threads.rb_node;
+	struct rb_node **p = &threads->entries.rb_node;
 	struct rb_node *parent = NULL;
 	struct thread *th;
 
@@ -391,14 +413,14 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 	 * so most of the time we dont have to look up
 	 * the full rbtree:
 	 */
-	th = machine->last_match;
+	th = threads->last_match;
 	if (th != NULL) {
 		if (th->tid == tid) {
 			machine__update_thread_pid(machine, th, pid);
 			return thread__get(th);
 		}
 
-		machine->last_match = NULL;
+		threads->last_match = NULL;
 	}
 
 	while (*p != NULL) {
@@ -406,7 +428,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 		th = rb_entry(parent, struct thread, rb_node);
 
 		if (th->tid == tid) {
-			machine->last_match = th;
+			threads->last_match = th;
 			machine__update_thread_pid(machine, th, pid);
 			return thread__get(th);
 		}
@@ -423,7 +445,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 	th = thread__new(pid, tid);
 	if (th != NULL) {
 		rb_link_node(&th->rb_node, parent, p);
-		rb_insert_color(&th->rb_node, &machine->threads);
+		rb_insert_color(&th->rb_node, &threads->entries);
 
 		/*
 		 * We have to initialize map_groups separately
@@ -434,7 +456,7 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 		 * leader and that would screwed the rb tree.
 		 */
 		if (thread__init_map_groups(th, machine)) {
-			rb_erase_init(&th->rb_node, &machine->threads);
+			rb_erase_init(&th->rb_node, &threads->entries);
 			RB_CLEAR_NODE(&th->rb_node);
 			thread__put(th);
 			return NULL;
@@ -443,8 +465,8 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 		 * It is now in the rbtree, get a ref
 		 */
 		thread__get(th);
-		machine->last_match = th;
-		++machine->nr_threads;
+		threads->last_match = th;
+		++threads->nr;
 	}
 
 	return th;
@@ -452,27 +474,30 @@ static struct thread *____machine__findnew_thread(struct machine *machine,
 
 struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid)
 {
-	return ____machine__findnew_thread(machine, pid, tid, true);
+	return ____machine__findnew_thread(machine, machine__threads(machine, tid), pid, tid, true);
 }
 
 struct thread *machine__findnew_thread(struct machine *machine, pid_t pid,
 				       pid_t tid)
 {
+	struct threads *threads = machine__threads(machine, tid);
 	struct thread *th;
 
-	pthread_rwlock_wrlock(&machine->threads_lock);
+	down_write(&threads->lock);
 	th = __machine__findnew_thread(machine, pid, tid);
-	pthread_rwlock_unlock(&machine->threads_lock);
+	up_write(&threads->lock);
 	return th;
 }
 
 struct thread *machine__find_thread(struct machine *machine, pid_t pid,
 				    pid_t tid)
 {
+	struct threads *threads = machine__threads(machine, tid);
 	struct thread *th;
-	pthread_rwlock_rdlock(&machine->threads_lock);
-	th =  ____machine__findnew_thread(machine, pid, tid, false);
-	pthread_rwlock_unlock(&machine->threads_lock);
+
+	down_read(&threads->lock);
+	th =  ____machine__findnew_thread(machine, threads, pid, tid, false);
+	up_read(&threads->lock);
 	return th;
 }
 
@@ -564,7 +589,7 @@ static struct dso *machine__findnew_module_dso(struct machine *machine,
 {
 	struct dso *dso;
 
-	pthread_rwlock_wrlock(&machine->dsos.lock);
+	down_write(&machine->dsos.lock);
 
 	dso = __dsos__find(&machine->dsos, m->name, true);
 	if (!dso) {
@@ -578,7 +603,7 @@ static struct dso *machine__findnew_module_dso(struct machine *machine,
 
 	dso__get(dso);
 out_unlock:
-	pthread_rwlock_unlock(&machine->dsos.lock);
+	up_write(&machine->dsos.lock);
 	return dso;
 }
 
@@ -719,21 +744,25 @@ size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp)
 
 size_t machine__fprintf(struct machine *machine, FILE *fp)
 {
-	size_t ret;
 	struct rb_node *nd;
+	size_t ret;
+	int i;
 
-	pthread_rwlock_rdlock(&machine->threads_lock);
+	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
+		struct threads *threads = &machine->threads[i];
 
-	ret = fprintf(fp, "Threads: %u\n", machine->nr_threads);
+		down_read(&threads->lock);
 
-	for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) {
-		struct thread *pos = rb_entry(nd, struct thread, rb_node);
+		ret = fprintf(fp, "Threads: %u\n", threads->nr);
 
-		ret += thread__fprintf(pos, fp);
-	}
+		for (nd = rb_first(&threads->entries); nd; nd = rb_next(nd)) {
+			struct thread *pos = rb_entry(nd, struct thread, rb_node);
 
-	pthread_rwlock_unlock(&machine->threads_lock);
+			ret += thread__fprintf(pos, fp);
+		}
 
+		up_read(&threads->lock);
+	}
 	return ret;
 }
 
@@ -1292,7 +1321,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
 		struct dso *kernel = NULL;
 		struct dso *dso;
 
-		pthread_rwlock_rdlock(&machine->dsos.lock);
+		down_read(&machine->dsos.lock);
 
 		list_for_each_entry(dso, &machine->dsos.head, node) {
 
@@ -1322,7 +1351,7 @@ static int machine__process_kernel_mmap_event(struct machine *machine,
 			break;
 		}
 
-		pthread_rwlock_unlock(&machine->dsos.lock);
+		up_read(&machine->dsos.lock);
 
 		if (kernel == NULL)
 			kernel = machine__findnew_dso(machine, kmmap_prefix);
@@ -1479,23 +1508,25 @@ out_problem:
 
 static void __machine__remove_thread(struct machine *machine, struct thread *th, bool lock)
 {
-	if (machine->last_match == th)
-		machine->last_match = NULL;
+	struct threads *threads = machine__threads(machine, th->tid);
+
+	if (threads->last_match == th)
+		threads->last_match = NULL;
 
 	BUG_ON(refcount_read(&th->refcnt) == 0);
 	if (lock)
-		pthread_rwlock_wrlock(&machine->threads_lock);
-	rb_erase_init(&th->rb_node, &machine->threads);
+		down_write(&threads->lock);
+	rb_erase_init(&th->rb_node, &threads->entries);
 	RB_CLEAR_NODE(&th->rb_node);
-	--machine->nr_threads;
+	--threads->nr;
 	/*
 	 * Move it first to the dead_threads list, then drop the reference,
 	 * if this is the last reference, then the thread__delete destructor
 	 * will be called and we will remove it from the dead_threads list.
 	 */
-	list_add_tail(&th->node, &machine->dead_threads);
+	list_add_tail(&th->node, &threads->dead);
 	if (lock)
-		pthread_rwlock_unlock(&machine->threads_lock);
+		up_write(&threads->lock);
 	thread__put(th);
 }
 
@@ -1679,6 +1710,26 @@ struct mem_info *sample__resolve_mem(struct perf_sample *sample,
 	return mi;
 }
 
+static char *callchain_srcline(struct map *map, struct symbol *sym, u64 ip)
+{
+	char *srcline = NULL;
+
+	if (!map || callchain_param.key == CCKEY_FUNCTION)
+		return srcline;
+
+	srcline = srcline__tree_find(&map->dso->srclines, ip);
+	if (!srcline) {
+		bool show_sym = false;
+		bool show_addr = callchain_param.key == CCKEY_ADDRESS;
+
+		srcline = get_srcline(map->dso, map__rip_2objdump(map, ip),
+				      sym, show_sym, show_addr);
+		srcline__tree_insert(&map->dso->srclines, ip, srcline);
+	}
+
+	return srcline;
+}
+
 struct iterations {
 	int nr_loop_iter;
 	u64 cycles;
@@ -1698,6 +1749,7 @@ static int add_callchain_ip(struct thread *thread,
 	struct addr_location al;
 	int nr_loop_iter = 0;
 	u64 iter_cycles = 0;
+	const char *srcline = NULL;
 
 	al.filtered = 0;
 	al.sym = NULL;
@@ -1753,9 +1805,10 @@ static int add_callchain_ip(struct thread *thread,
 		iter_cycles = iter->cycles;
 	}
 
+	srcline = callchain_srcline(al.map, al.sym, al.addr);
 	return callchain_cursor_append(cursor, al.addr, al.map, al.sym,
 				       branch, flags, nr_loop_iter,
-				       iter_cycles, branch_from);
+				       iter_cycles, branch_from, srcline);
 }
 
 struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
@@ -2068,15 +2121,54 @@ check_calls:
 	return 0;
 }
 
+static int append_inlines(struct callchain_cursor *cursor,
+			  struct map *map, struct symbol *sym, u64 ip)
+{
+	struct inline_node *inline_node;
+	struct inline_list *ilist;
+	u64 addr;
+	int ret = 1;
+
+	if (!symbol_conf.inline_name || !map || !sym)
+		return ret;
+
+	addr = map__rip_2objdump(map, ip);
+
+	inline_node = inlines__tree_find(&map->dso->inlined_nodes, addr);
+	if (!inline_node) {
+		inline_node = dso__parse_addr_inlines(map->dso, addr, sym);
+		if (!inline_node)
+			return ret;
+		inlines__tree_insert(&map->dso->inlined_nodes, inline_node);
+	}
+
+	list_for_each_entry(ilist, &inline_node->val, list) {
+		ret = callchain_cursor_append(cursor, ip, map,
+					      ilist->symbol, false,
+					      NULL, 0, 0, 0, ilist->srcline);
+
+		if (ret != 0)
+			return ret;
+	}
+
+	return ret;
+}
+
 static int unwind_entry(struct unwind_entry *entry, void *arg)
 {
 	struct callchain_cursor *cursor = arg;
+	const char *srcline = NULL;
 
 	if (symbol_conf.hide_unresolved && entry->sym == NULL)
 		return 0;
+
+	if (append_inlines(cursor, entry->map, entry->sym, entry->ip) == 0)
+		return 0;
+
+	srcline = callchain_srcline(entry->map, entry->sym, entry->ip);
 	return callchain_cursor_append(cursor, entry->ip,
 				       entry->map, entry->sym,
-				       false, NULL, 0, 0, 0);
+				       false, NULL, 0, 0, 0, srcline);
 }
 
 static int thread__resolve_callchain_unwind(struct thread *thread,
@@ -2140,21 +2232,26 @@ int machine__for_each_thread(struct machine *machine,
 			     int (*fn)(struct thread *thread, void *p),
 			     void *priv)
 {
+	struct threads *threads;
 	struct rb_node *nd;
 	struct thread *thread;
 	int rc = 0;
+	int i;
 
-	for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) {
-		thread = rb_entry(nd, struct thread, rb_node);
-		rc = fn(thread, priv);
-		if (rc != 0)
-			return rc;
-	}
+	for (i = 0; i < THREADS__TABLE_SIZE; i++) {
+		threads = &machine->threads[i];
+		for (nd = rb_first(&threads->entries); nd; nd = rb_next(nd)) {
+			thread = rb_entry(nd, struct thread, rb_node);
+			rc = fn(thread, priv);
+			if (rc != 0)
+				return rc;
+		}
 
-	list_for_each_entry(thread, &machine->dead_threads, node) {
-		rc = fn(thread, priv);
-		if (rc != 0)
-			return rc;
+		list_for_each_entry(thread, &threads->dead, node) {
+			rc = fn(thread, priv);
+			if (rc != 0)
+				return rc;
+		}
 	}
 	return rc;
 }
@@ -2183,12 +2280,16 @@ int machines__for_each_thread(struct machines *machines,
 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
 				  struct target *target, struct thread_map *threads,
 				  perf_event__handler_t process, bool data_mmap,
-				  unsigned int proc_map_timeout)
+				  unsigned int proc_map_timeout,
+				  unsigned int nr_threads_synthesize)
 {
 	if (target__has_task(target))
 		return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap, proc_map_timeout);
 	else if (target__has_cpu(target))
-		return perf_event__synthesize_threads(tool, process, machine, data_mmap, proc_map_timeout);
+		return perf_event__synthesize_threads(tool, process,
+						      machine, data_mmap,
+						      proc_map_timeout,
+						      nr_threads_synthesize);
 	/* command specified */
 	return 0;
 }
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 3cdb1340f917..5ce860b64c74 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_MACHINE_H
 #define __PERF_MACHINE_H
 
@@ -6,6 +7,7 @@
 #include "map.h"
 #include "dso.h"
 #include "event.h"
+#include "rwsem.h"
 
 struct addr_location;
 struct branch_stack;
@@ -23,6 +25,17 @@ extern const char *ref_reloc_sym_names[];
 
 struct vdso_info;
 
+#define THREADS__TABLE_BITS	8
+#define THREADS__TABLE_SIZE	(1 << THREADS__TABLE_BITS)
+
+struct threads {
+	struct rb_root	  entries;
+	struct rw_semaphore lock;
+	unsigned int	  nr;
+	struct list_head  dead;
+	struct thread	  *last_match;
+};
+
 struct machine {
 	struct rb_node	  rb_node;
 	pid_t		  pid;
@@ -30,11 +43,7 @@ struct machine {
 	bool		  comm_exec;
 	bool		  kptr_restrict_warned;
 	char		  *root_dir;
-	struct rb_root	  threads;
-	pthread_rwlock_t  threads_lock;
-	unsigned int	  nr_threads;
-	struct list_head  dead_threads;
-	struct thread	  *last_match;
+	struct threads    threads[THREADS__TABLE_SIZE];
 	struct vdso_info  *vdso_info;
 	struct perf_env   *env;
 	struct dsos	  dsos;
@@ -48,6 +57,12 @@ struct machine {
 	};
 };
 
+static inline struct threads *machine__threads(struct machine *machine, pid_t tid)
+{
+	/* Cast it to handle tid == -1 */
+	return &machine->threads[(unsigned int)tid % THREADS__TABLE_SIZE];
+}
+
 static inline
 struct map *__machine__kernel_map(struct machine *machine, enum map_type type)
 {
@@ -243,15 +258,18 @@ int machines__for_each_thread(struct machines *machines,
 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
 				  struct target *target, struct thread_map *threads,
 				  perf_event__handler_t process, bool data_mmap,
-				  unsigned int proc_map_timeout);
+				  unsigned int proc_map_timeout,
+				  unsigned int nr_threads_synthesize);
 static inline
 int machine__synthesize_threads(struct machine *machine, struct target *target,
 				struct thread_map *threads, bool data_mmap,
-				unsigned int proc_map_timeout)
+				unsigned int proc_map_timeout,
+				unsigned int nr_threads_synthesize)
 {
 	return __machine__synthesize_threads(machine, NULL, target, threads,
 					     perf_event__process, data_mmap,
-					     proc_map_timeout);
+					     proc_map_timeout,
+					     nr_threads_synthesize);
 }
 
 pid_t machine__get_current_tid(struct machine *machine, int cpu);
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index bdaa0a4edc17..6d40efd74402 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "symbol.h"
 #include <errno.h>
 #include <inttypes.h>
@@ -488,7 +489,7 @@ u64 map__objdump_2mem(struct map *map, u64 ip)
 static void maps__init(struct maps *maps)
 {
 	maps->entries = RB_ROOT;
-	pthread_rwlock_init(&maps->lock, NULL);
+	init_rwsem(&maps->lock);
 }
 
 void map_groups__init(struct map_groups *mg, struct machine *machine)
@@ -517,9 +518,9 @@ static void __maps__purge(struct maps *maps)
 
 static void maps__exit(struct maps *maps)
 {
-	pthread_rwlock_wrlock(&maps->lock);
+	down_write(&maps->lock);
 	__maps__purge(maps);
-	pthread_rwlock_unlock(&maps->lock);
+	up_write(&maps->lock);
 }
 
 void map_groups__exit(struct map_groups *mg)
@@ -586,7 +587,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
 	struct symbol *sym;
 	struct rb_node *nd;
 
-	pthread_rwlock_rdlock(&maps->lock);
+	down_read(&maps->lock);
 
 	for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
 		struct map *pos = rb_entry(nd, struct map, rb_node);
@@ -602,7 +603,7 @@ struct symbol *maps__find_symbol_by_name(struct maps *maps, const char *name,
 
 	sym = NULL;
 out:
-	pthread_rwlock_unlock(&maps->lock);
+	up_read(&maps->lock);
 	return sym;
 }
 
@@ -638,7 +639,7 @@ static size_t maps__fprintf(struct maps *maps, FILE *fp)
 	size_t printed = 0;
 	struct rb_node *nd;
 
-	pthread_rwlock_rdlock(&maps->lock);
+	down_read(&maps->lock);
 
 	for (nd = rb_first(&maps->entries); nd; nd = rb_next(nd)) {
 		struct map *pos = rb_entry(nd, struct map, rb_node);
@@ -650,7 +651,7 @@ static size_t maps__fprintf(struct maps *maps, FILE *fp)
 		}
 	}
 
-	pthread_rwlock_unlock(&maps->lock);
+	up_read(&maps->lock);
 
 	return printed;
 }
@@ -682,7 +683,7 @@ static int maps__fixup_overlappings(struct maps *maps, struct map *map, FILE *fp
 	struct rb_node *next;
 	int err = 0;
 
-	pthread_rwlock_wrlock(&maps->lock);
+	down_write(&maps->lock);
 
 	root = &maps->entries;
 	next = rb_first(root);
@@ -750,7 +751,7 @@ put_map:
 
 	err = 0;
 out:
-	pthread_rwlock_unlock(&maps->lock);
+	up_write(&maps->lock);
 	return err;
 }
 
@@ -771,7 +772,7 @@ int map_groups__clone(struct thread *thread,
 	struct map *map;
 	struct maps *maps = &parent->maps[type];
 
-	pthread_rwlock_rdlock(&maps->lock);
+	down_read(&maps->lock);
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
 		struct map *new = map__clone(map);
@@ -788,7 +789,7 @@ int map_groups__clone(struct thread *thread,
 
 	err = 0;
 out_unlock:
-	pthread_rwlock_unlock(&maps->lock);
+	up_read(&maps->lock);
 	return err;
 }
 
@@ -815,9 +816,9 @@ static void __maps__insert(struct maps *maps, struct map *map)
 
 void maps__insert(struct maps *maps, struct map *map)
 {
-	pthread_rwlock_wrlock(&maps->lock);
+	down_write(&maps->lock);
 	__maps__insert(maps, map);
-	pthread_rwlock_unlock(&maps->lock);
+	up_write(&maps->lock);
 }
 
 static void __maps__remove(struct maps *maps, struct map *map)
@@ -828,9 +829,9 @@ static void __maps__remove(struct maps *maps, struct map *map)
 
 void maps__remove(struct maps *maps, struct map *map)
 {
-	pthread_rwlock_wrlock(&maps->lock);
+	down_write(&maps->lock);
 	__maps__remove(maps, map);
-	pthread_rwlock_unlock(&maps->lock);
+	up_write(&maps->lock);
 }
 
 struct map *maps__find(struct maps *maps, u64 ip)
@@ -838,7 +839,7 @@ struct map *maps__find(struct maps *maps, u64 ip)
 	struct rb_node **p, *parent = NULL;
 	struct map *m;
 
-	pthread_rwlock_rdlock(&maps->lock);
+	down_read(&maps->lock);
 
 	p = &maps->entries.rb_node;
 	while (*p != NULL) {
@@ -854,7 +855,7 @@ struct map *maps__find(struct maps *maps, u64 ip)
 
 	m = NULL;
 out:
-	pthread_rwlock_unlock(&maps->lock);
+	up_read(&maps->lock);
 	return m;
 }
 
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 73aacf7a7dc4..edeb7291c8e1 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_MAP_H
 #define __PERF_MAP_H
 
@@ -9,6 +10,7 @@
 #include <stdio.h>
 #include <stdbool.h>
 #include <linux/types.h>
+#include "rwsem.h"
 
 enum map_type {
 	MAP__FUNCTION = 0,
@@ -61,7 +63,7 @@ struct kmap {
 
 struct maps {
 	struct rb_root	 entries;
-	pthread_rwlock_t lock;
+	struct rw_semaphore lock;
 };
 
 struct map_groups {
diff --git a/tools/perf/util/mem-events.c b/tools/perf/util/mem-events.c
index 28afe5fa84d6..93f74d8d3cdd 100644
--- a/tools/perf/util/mem-events.c
+++ b/tools/perf/util/mem-events.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/perf/util/mem-events.h b/tools/perf/util/mem-events.h
index 40f72ee4f42a..a889ec2fa9f5 100644
--- a/tools/perf/util/mem-events.h
+++ b/tools/perf/util/mem-events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_MEM_EVENTS_H
 #define __PERF_MEM_EVENTS_H
 
diff --git a/tools/perf/util/memswap.c b/tools/perf/util/memswap.c
index 55f7faa8d9ec..c1317e4983bc 100644
--- a/tools/perf/util/memswap.c
+++ b/tools/perf/util/memswap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <byteswap.h>
 #include "memswap.h"
 #include <linux/types.h>
diff --git a/tools/perf/util/memswap.h b/tools/perf/util/memswap.h
index 7d1b1c34bb57..1e29ff903ca9 100644
--- a/tools/perf/util/memswap.h
+++ b/tools/perf/util/memswap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_MEMSWAP_H_
 #define PERF_MEMSWAP_H_
 
diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
new file mode 100644
index 000000000000..0ddd9c199227
--- /dev/null
+++ b/tools/perf/util/metricgroup.c
@@ -0,0 +1,490 @@
+/*
+ * Copyright (c) 2017, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+/* Manage metrics and groups of metrics from JSON files */
+
+#include "metricgroup.h"
+#include "evlist.h"
+#include "strbuf.h"
+#include "pmu.h"
+#include "expr.h"
+#include "rblist.h"
+#include "pmu.h"
+#include <string.h>
+#include <stdbool.h>
+#include <errno.h>
+#include "pmu-events/pmu-events.h"
+#include "strbuf.h"
+#include "strlist.h"
+#include <assert.h>
+#include <ctype.h>
+
+struct metric_event *metricgroup__lookup(struct rblist *metric_events,
+					 struct perf_evsel *evsel,
+					 bool create)
+{
+	struct rb_node *nd;
+	struct metric_event me = {
+		.evsel = evsel
+	};
+	nd = rblist__find(metric_events, &me);
+	if (nd)
+		return container_of(nd, struct metric_event, nd);
+	if (create) {
+		rblist__add_node(metric_events, &me);
+		nd = rblist__find(metric_events, &me);
+		if (nd)
+			return container_of(nd, struct metric_event, nd);
+	}
+	return NULL;
+}
+
+static int metric_event_cmp(struct rb_node *rb_node, const void *entry)
+{
+	struct metric_event *a = container_of(rb_node,
+					      struct metric_event,
+					      nd);
+	const struct metric_event *b = entry;
+
+	if (a->evsel == b->evsel)
+		return 0;
+	if ((char *)a->evsel < (char *)b->evsel)
+		return -1;
+	return +1;
+}
+
+static struct rb_node *metric_event_new(struct rblist *rblist __maybe_unused,
+					const void *entry)
+{
+	struct metric_event *me = malloc(sizeof(struct metric_event));
+
+	if (!me)
+		return NULL;
+	memcpy(me, entry, sizeof(struct metric_event));
+	me->evsel = ((struct metric_event *)entry)->evsel;
+	INIT_LIST_HEAD(&me->head);
+	return &me->nd;
+}
+
+static void metricgroup__rblist_init(struct rblist *metric_events)
+{
+	rblist__init(metric_events);
+	metric_events->node_cmp = metric_event_cmp;
+	metric_events->node_new = metric_event_new;
+}
+
+struct egroup {
+	struct list_head nd;
+	int idnum;
+	const char **ids;
+	const char *metric_name;
+	const char *metric_expr;
+};
+
+static struct perf_evsel *find_evsel(struct perf_evlist *perf_evlist,
+				     const char **ids,
+				     int idnum,
+				     struct perf_evsel **metric_events)
+{
+	struct perf_evsel *ev, *start = NULL;
+	int ind = 0;
+
+	evlist__for_each_entry (perf_evlist, ev) {
+		if (!strcmp(ev->name, ids[ind])) {
+			metric_events[ind] = ev;
+			if (ind == 0)
+				start = ev;
+			if (++ind == idnum) {
+				metric_events[ind] = NULL;
+				return start;
+			}
+		} else {
+			ind = 0;
+			start = NULL;
+		}
+	}
+	/*
+	 * This can happen when an alias expands to multiple
+	 * events, like for uncore events.
+	 * We don't support this case for now.
+	 */
+	return NULL;
+}
+
+static int metricgroup__setup_events(struct list_head *groups,
+				     struct perf_evlist *perf_evlist,
+				     struct rblist *metric_events_list)
+{
+	struct metric_event *me;
+	struct metric_expr *expr;
+	int i = 0;
+	int ret = 0;
+	struct egroup *eg;
+	struct perf_evsel *evsel;
+
+	list_for_each_entry (eg, groups, nd) {
+		struct perf_evsel **metric_events;
+
+		metric_events = calloc(sizeof(void *), eg->idnum + 1);
+		if (!metric_events) {
+			ret = -ENOMEM;
+			break;
+		}
+		evsel = find_evsel(perf_evlist, eg->ids, eg->idnum,
+				   metric_events);
+		if (!evsel) {
+			pr_debug("Cannot resolve %s: %s\n",
+					eg->metric_name, eg->metric_expr);
+			continue;
+		}
+		for (i = 0; i < eg->idnum; i++)
+			metric_events[i]->collect_stat = true;
+		me = metricgroup__lookup(metric_events_list, evsel, true);
+		if (!me) {
+			ret = -ENOMEM;
+			break;
+		}
+		expr = malloc(sizeof(struct metric_expr));
+		if (!expr) {
+			ret = -ENOMEM;
+			break;
+		}
+		expr->metric_expr = eg->metric_expr;
+		expr->metric_name = eg->metric_name;
+		expr->metric_events = metric_events;
+		list_add(&expr->nd, &me->head);
+	}
+	return ret;
+}
+
+static bool match_metric(const char *n, const char *list)
+{
+	int len;
+	char *m;
+
+	if (!list)
+		return false;
+	if (!strcmp(list, "all"))
+		return true;
+	if (!n)
+		return !strcasecmp(list, "No_group");
+	len = strlen(list);
+	m = strcasestr(n, list);
+	if (!m)
+		return false;
+	if ((m == n || m[-1] == ';' || m[-1] == ' ') &&
+	    (m[len] == 0 || m[len] == ';'))
+		return true;
+	return false;
+}
+
+struct mep {
+	struct rb_node nd;
+	const char *name;
+	struct strlist *metrics;
+};
+
+static int mep_cmp(struct rb_node *rb_node, const void *entry)
+{
+	struct mep *a = container_of(rb_node, struct mep, nd);
+	struct mep *b = (struct mep *)entry;
+
+	return strcmp(a->name, b->name);
+}
+
+static struct rb_node *mep_new(struct rblist *rl __maybe_unused,
+					const void *entry)
+{
+	struct mep *me = malloc(sizeof(struct mep));
+
+	if (!me)
+		return NULL;
+	memcpy(me, entry, sizeof(struct mep));
+	me->name = strdup(me->name);
+	if (!me->name)
+		goto out_me;
+	me->metrics = strlist__new(NULL, NULL);
+	if (!me->metrics)
+		goto out_name;
+	return &me->nd;
+out_name:
+	free((char *)me->name);
+out_me:
+	free(me);
+	return NULL;
+}
+
+static struct mep *mep_lookup(struct rblist *groups, const char *name)
+{
+	struct rb_node *nd;
+	struct mep me = {
+		.name = name
+	};
+	nd = rblist__find(groups, &me);
+	if (nd)
+		return container_of(nd, struct mep, nd);
+	rblist__add_node(groups, &me);
+	nd = rblist__find(groups, &me);
+	if (nd)
+		return container_of(nd, struct mep, nd);
+	return NULL;
+}
+
+static void mep_delete(struct rblist *rl __maybe_unused,
+		       struct rb_node *nd)
+{
+	struct mep *me = container_of(nd, struct mep, nd);
+
+	strlist__delete(me->metrics);
+	free((void *)me->name);
+	free(me);
+}
+
+static void metricgroup__print_strlist(struct strlist *metrics, bool raw)
+{
+	struct str_node *sn;
+	int n = 0;
+
+	strlist__for_each_entry (sn, metrics) {
+		if (raw)
+			printf("%s%s", n > 0 ? " " : "", sn->s);
+		else
+			printf("  %s\n", sn->s);
+		n++;
+	}
+	if (raw)
+		putchar('\n');
+}
+
+void metricgroup__print(bool metrics, bool metricgroups, char *filter,
+			bool raw)
+{
+	struct pmu_events_map *map = perf_pmu__find_map();
+	struct pmu_event *pe;
+	int i;
+	struct rblist groups;
+	struct rb_node *node, *next;
+	struct strlist *metriclist = NULL;
+
+	if (!map)
+		return;
+
+	if (!metricgroups) {
+		metriclist = strlist__new(NULL, NULL);
+		if (!metriclist)
+			return;
+	}
+
+	rblist__init(&groups);
+	groups.node_new = mep_new;
+	groups.node_cmp = mep_cmp;
+	groups.node_delete = mep_delete;
+	for (i = 0; ; i++) {
+		const char *g;
+		pe = &map->table[i];
+
+		if (!pe->name && !pe->metric_group && !pe->metric_name)
+			break;
+		if (!pe->metric_expr)
+			continue;
+		g = pe->metric_group;
+		if (!g && pe->metric_name) {
+			if (pe->name)
+				continue;
+			g = "No_group";
+		}
+		if (g) {
+			char *omg;
+			char *mg = strdup(g);
+
+			if (!mg)
+				return;
+			omg = mg;
+			while ((g = strsep(&mg, ";")) != NULL) {
+				struct mep *me;
+				char *s;
+
+				if (*g == 0)
+					g = "No_group";
+				while (isspace(*g))
+					g++;
+				if (filter && !strstr(g, filter))
+					continue;
+				if (raw)
+					s = (char *)pe->metric_name;
+				else {
+					if (asprintf(&s, "%s\n\t[%s]",
+						     pe->metric_name, pe->desc) < 0)
+						return;
+				}
+
+				if (!s)
+					continue;
+
+				if (!metricgroups) {
+					strlist__add(metriclist, s);
+				} else {
+					me = mep_lookup(&groups, g);
+					if (!me)
+						continue;
+					strlist__add(me->metrics, s);
+				}
+			}
+			free(omg);
+		}
+	}
+
+	if (metricgroups && !raw)
+		printf("\nMetric Groups:\n\n");
+	else if (metrics && !raw)
+		printf("\nMetrics:\n\n");
+
+	for (node = rb_first(&groups.entries); node; node = next) {
+		struct mep *me = container_of(node, struct mep, nd);
+
+		if (metricgroups)
+			printf("%s%s%s", me->name, metrics ? ":" : "", raw ? " " : "\n");
+		if (metrics)
+			metricgroup__print_strlist(me->metrics, raw);
+		next = rb_next(node);
+		rblist__remove_node(&groups, node);
+	}
+	if (!metricgroups)
+		metricgroup__print_strlist(metriclist, raw);
+	strlist__delete(metriclist);
+}
+
+static int metricgroup__add_metric(const char *metric, struct strbuf *events,
+				   struct list_head *group_list)
+{
+	struct pmu_events_map *map = perf_pmu__find_map();
+	struct pmu_event *pe;
+	int ret = -EINVAL;
+	int i, j;
+
+	if (!map)
+		return 0;
+
+	for (i = 0; ; i++) {
+		pe = &map->table[i];
+
+		if (!pe->name && !pe->metric_group && !pe->metric_name)
+			break;
+		if (!pe->metric_expr)
+			continue;
+		if (match_metric(pe->metric_group, metric) ||
+		    match_metric(pe->metric_name, metric)) {
+			const char **ids;
+			int idnum;
+			struct egroup *eg;
+
+			pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
+
+			if (expr__find_other(pe->metric_expr,
+					     NULL, &ids, &idnum) < 0)
+				continue;
+			if (events->len > 0)
+				strbuf_addf(events, ",");
+			for (j = 0; j < idnum; j++) {
+				pr_debug("found event %s\n", ids[j]);
+				strbuf_addf(events, "%s%s",
+					j == 0 ? "{" : ",",
+					ids[j]);
+			}
+			strbuf_addf(events, "}:W");
+
+			eg = malloc(sizeof(struct egroup));
+			if (!eg) {
+				ret = -ENOMEM;
+				break;
+			}
+			eg->ids = ids;
+			eg->idnum = idnum;
+			eg->metric_name = pe->metric_name;
+			eg->metric_expr = pe->metric_expr;
+			list_add_tail(&eg->nd, group_list);
+			ret = 0;
+		}
+	}
+	return ret;
+}
+
+static int metricgroup__add_metric_list(const char *list, struct strbuf *events,
+				        struct list_head *group_list)
+{
+	char *llist, *nlist, *p;
+	int ret = -EINVAL;
+
+	nlist = strdup(list);
+	if (!nlist)
+		return -ENOMEM;
+	llist = nlist;
+
+	strbuf_init(events, 100);
+	strbuf_addf(events, "%s", "");
+
+	while ((p = strsep(&llist, ",")) != NULL) {
+		ret = metricgroup__add_metric(p, events, group_list);
+		if (ret == -EINVAL) {
+			fprintf(stderr, "Cannot find metric or group `%s'\n",
+					p);
+			break;
+		}
+	}
+	free(nlist);
+	return ret;
+}
+
+static void metricgroup__free_egroups(struct list_head *group_list)
+{
+	struct egroup *eg, *egtmp;
+	int i;
+
+	list_for_each_entry_safe (eg, egtmp, group_list, nd) {
+		for (i = 0; i < eg->idnum; i++)
+			free((char *)eg->ids[i]);
+		free(eg->ids);
+		free(eg);
+	}
+}
+
+int metricgroup__parse_groups(const struct option *opt,
+			   const char *str,
+			   struct rblist *metric_events)
+{
+	struct parse_events_error parse_error;
+	struct perf_evlist *perf_evlist = *(struct perf_evlist **)opt->value;
+	struct strbuf extra_events;
+	LIST_HEAD(group_list);
+	int ret;
+
+	if (metric_events->nr_entries == 0)
+		metricgroup__rblist_init(metric_events);
+	ret = metricgroup__add_metric_list(str, &extra_events, &group_list);
+	if (ret)
+		return ret;
+	pr_debug("adding %s\n", extra_events.buf);
+	memset(&parse_error, 0, sizeof(struct parse_events_error));
+	ret = parse_events(perf_evlist, extra_events.buf, &parse_error);
+	if (ret) {
+		parse_events_print_error(&parse_error, extra_events.buf);
+		goto out;
+	}
+	strbuf_release(&extra_events);
+	ret = metricgroup__setup_events(&group_list, perf_evlist,
+					metric_events);
+out:
+	metricgroup__free_egroups(&group_list);
+	return ret;
+}
diff --git a/tools/perf/util/metricgroup.h b/tools/perf/util/metricgroup.h
new file mode 100644
index 000000000000..06854e125ee7
--- /dev/null
+++ b/tools/perf/util/metricgroup.h
@@ -0,0 +1,31 @@
+#ifndef METRICGROUP_H
+#define METRICGROUP_H 1
+
+#include "linux/list.h"
+#include "rblist.h"
+#include <subcmd/parse-options.h>
+#include "evlist.h"
+#include "strbuf.h"
+
+struct metric_event {
+	struct rb_node nd;
+	struct perf_evsel *evsel;
+	struct list_head head; /* list of metric_expr */
+};
+
+struct metric_expr {
+	struct list_head nd;
+	const char *metric_expr;
+	const char *metric_name;
+	struct perf_evsel **metric_events;
+};
+
+struct metric_event *metricgroup__lookup(struct rblist *metric_events,
+					 struct perf_evsel *evsel,
+					 bool create);
+int metricgroup__parse_groups(const struct option *opt,
+			const char *str,
+			struct rblist *metric_events);
+
+void metricgroup__print(bool metrics, bool groups, char *filter, bool raw);
+#endif
diff --git a/tools/perf/util/mmap.c b/tools/perf/util/mmap.c
new file mode 100644
index 000000000000..9fe5f9c7d577
--- /dev/null
+++ b/tools/perf/util/mmap.c
@@ -0,0 +1,352 @@
+/*
+ * Copyright (C) 2011-2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
+ *
+ * Parts came from evlist.c builtin-{top,stat,record}.c, see those files for further
+ * copyright notes.
+ *
+ * Released under the GPL v2. (and only v2, not any later version)
+ */
+
+#include <sys/mman.h>
+#include <inttypes.h>
+#include <asm/bug.h>
+#include "debug.h"
+#include "event.h"
+#include "mmap.h"
+#include "util.h" /* page_size */
+
+size_t perf_mmap__mmap_len(struct perf_mmap *map)
+{
+	return map->mask + 1 + page_size;
+}
+
+/* When check_messup is true, 'end' must points to a good entry */
+static union perf_event *perf_mmap__read(struct perf_mmap *map, bool check_messup,
+					 u64 start, u64 end, u64 *prev)
+{
+	unsigned char *data = map->base + page_size;
+	union perf_event *event = NULL;
+	int diff = end - start;
+
+	if (check_messup) {
+		/*
+		 * If we're further behind than half the buffer, there's a chance
+		 * the writer will bite our tail and mess up the samples under us.
+		 *
+		 * If we somehow ended up ahead of the 'end', we got messed up.
+		 *
+		 * In either case, truncate and restart at 'end'.
+		 */
+		if (diff > map->mask / 2 || diff < 0) {
+			fprintf(stderr, "WARNING: failed to keep up with mmap data.\n");
+
+			/*
+			 * 'end' points to a known good entry, start there.
+			 */
+			start = end;
+			diff = 0;
+		}
+	}
+
+	if (diff >= (int)sizeof(event->header)) {
+		size_t size;
+
+		event = (union perf_event *)&data[start & map->mask];
+		size = event->header.size;
+
+		if (size < sizeof(event->header) || diff < (int)size) {
+			event = NULL;
+			goto broken_event;
+		}
+
+		/*
+		 * Event straddles the mmap boundary -- header should always
+		 * be inside due to u64 alignment of output.
+		 */
+		if ((start & map->mask) + size != ((start + size) & map->mask)) {
+			unsigned int offset = start;
+			unsigned int len = min(sizeof(*event), size), cpy;
+			void *dst = map->event_copy;
+
+			do {
+				cpy = min(map->mask + 1 - (offset & map->mask), len);
+				memcpy(dst, &data[offset & map->mask], cpy);
+				offset += cpy;
+				dst += cpy;
+				len -= cpy;
+			} while (len);
+
+			event = (union perf_event *)map->event_copy;
+		}
+
+		start += size;
+	}
+
+broken_event:
+	if (prev)
+		*prev = start;
+
+	return event;
+}
+
+union perf_event *perf_mmap__read_forward(struct perf_mmap *map, bool check_messup)
+{
+	u64 head;
+	u64 old = map->prev;
+
+	/*
+	 * Check if event was unmapped due to a POLLHUP/POLLERR.
+	 */
+	if (!refcount_read(&map->refcnt))
+		return NULL;
+
+	head = perf_mmap__read_head(map);
+
+	return perf_mmap__read(map, check_messup, old, head, &map->prev);
+}
+
+union perf_event *perf_mmap__read_backward(struct perf_mmap *map)
+{
+	u64 head, end;
+	u64 start = map->prev;
+
+	/*
+	 * Check if event was unmapped due to a POLLHUP/POLLERR.
+	 */
+	if (!refcount_read(&map->refcnt))
+		return NULL;
+
+	head = perf_mmap__read_head(map);
+	if (!head)
+		return NULL;
+
+	/*
+	 * 'head' pointer starts from 0. Kernel minus sizeof(record) form
+	 * it each time when kernel writes to it, so in fact 'head' is
+	 * negative. 'end' pointer is made manually by adding the size of
+	 * the ring buffer to 'head' pointer, means the validate data can
+	 * read is the whole ring buffer. If 'end' is positive, the ring
+	 * buffer has not fully filled, so we must adjust 'end' to 0.
+	 *
+	 * However, since both 'head' and 'end' is unsigned, we can't
+	 * simply compare 'end' against 0. Here we compare '-head' and
+	 * the size of the ring buffer, where -head is the number of bytes
+	 * kernel write to the ring buffer.
+	 */
+	if (-head < (u64)(map->mask + 1))
+		end = 0;
+	else
+		end = head + map->mask + 1;
+
+	return perf_mmap__read(map, false, start, end, &map->prev);
+}
+
+void perf_mmap__read_catchup(struct perf_mmap *map)
+{
+	u64 head;
+
+	if (!refcount_read(&map->refcnt))
+		return;
+
+	head = perf_mmap__read_head(map);
+	map->prev = head;
+}
+
+static bool perf_mmap__empty(struct perf_mmap *map)
+{
+	return perf_mmap__read_head(map) == map->prev && !map->auxtrace_mmap.base;
+}
+
+void perf_mmap__get(struct perf_mmap *map)
+{
+	refcount_inc(&map->refcnt);
+}
+
+void perf_mmap__put(struct perf_mmap *map)
+{
+	BUG_ON(map->base && refcount_read(&map->refcnt) == 0);
+
+	if (refcount_dec_and_test(&map->refcnt))
+		perf_mmap__munmap(map);
+}
+
+void perf_mmap__consume(struct perf_mmap *map, bool overwrite)
+{
+	if (!overwrite) {
+		u64 old = map->prev;
+
+		perf_mmap__write_tail(map, old);
+	}
+
+	if (refcount_read(&map->refcnt) == 1 && perf_mmap__empty(map))
+		perf_mmap__put(map);
+}
+
+int __weak auxtrace_mmap__mmap(struct auxtrace_mmap *mm __maybe_unused,
+			       struct auxtrace_mmap_params *mp __maybe_unused,
+			       void *userpg __maybe_unused,
+			       int fd __maybe_unused)
+{
+	return 0;
+}
+
+void __weak auxtrace_mmap__munmap(struct auxtrace_mmap *mm __maybe_unused)
+{
+}
+
+void __weak auxtrace_mmap_params__init(struct auxtrace_mmap_params *mp __maybe_unused,
+				       off_t auxtrace_offset __maybe_unused,
+				       unsigned int auxtrace_pages __maybe_unused,
+				       bool auxtrace_overwrite __maybe_unused)
+{
+}
+
+void __weak auxtrace_mmap_params__set_idx(struct auxtrace_mmap_params *mp __maybe_unused,
+					  struct perf_evlist *evlist __maybe_unused,
+					  int idx __maybe_unused,
+					  bool per_cpu __maybe_unused)
+{
+}
+
+void perf_mmap__munmap(struct perf_mmap *map)
+{
+	if (map->base != NULL) {
+		munmap(map->base, perf_mmap__mmap_len(map));
+		map->base = NULL;
+		map->fd = -1;
+		refcount_set(&map->refcnt, 0);
+	}
+	auxtrace_mmap__munmap(&map->auxtrace_mmap);
+}
+
+int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd)
+{
+	/*
+	 * The last one will be done at perf_evlist__mmap_consume(), so that we
+	 * make sure we don't prevent tools from consuming every last event in
+	 * the ring buffer.
+	 *
+	 * I.e. we can get the POLLHUP meaning that the fd doesn't exist
+	 * anymore, but the last events for it are still in the ring buffer,
+	 * waiting to be consumed.
+	 *
+	 * Tools can chose to ignore this at their own discretion, but the
+	 * evlist layer can't just drop it when filtering events in
+	 * perf_evlist__filter_pollfd().
+	 */
+	refcount_set(&map->refcnt, 2);
+	map->prev = 0;
+	map->mask = mp->mask;
+	map->base = mmap(NULL, perf_mmap__mmap_len(map), mp->prot,
+			 MAP_SHARED, fd, 0);
+	if (map->base == MAP_FAILED) {
+		pr_debug2("failed to mmap perf event ring buffer, error %d\n",
+			  errno);
+		map->base = NULL;
+		return -1;
+	}
+	map->fd = fd;
+
+	if (auxtrace_mmap__mmap(&map->auxtrace_mmap,
+				&mp->auxtrace_mp, map->base, fd))
+		return -1;
+
+	return 0;
+}
+
+static int backward_rb_find_range(void *buf, int mask, u64 head, u64 *start, u64 *end)
+{
+	struct perf_event_header *pheader;
+	u64 evt_head = head;
+	int size = mask + 1;
+
+	pr_debug2("backward_rb_find_range: buf=%p, head=%"PRIx64"\n", buf, head);
+	pheader = (struct perf_event_header *)(buf + (head & mask));
+	*start = head;
+	while (true) {
+		if (evt_head - head >= (unsigned int)size) {
+			pr_debug("Finished reading backward ring buffer: rewind\n");
+			if (evt_head - head > (unsigned int)size)
+				evt_head -= pheader->size;
+			*end = evt_head;
+			return 0;
+		}
+
+		pheader = (struct perf_event_header *)(buf + (evt_head & mask));
+
+		if (pheader->size == 0) {
+			pr_debug("Finished reading backward ring buffer: get start\n");
+			*end = evt_head;
+			return 0;
+		}
+
+		evt_head += pheader->size;
+		pr_debug3("move evt_head: %"PRIx64"\n", evt_head);
+	}
+	WARN_ONCE(1, "Shouldn't get here\n");
+	return -1;
+}
+
+static int rb_find_range(void *data, int mask, u64 head, u64 old,
+			 u64 *start, u64 *end, bool backward)
+{
+	if (!backward) {
+		*start = old;
+		*end = head;
+		return 0;
+	}
+
+	return backward_rb_find_range(data, mask, head, start, end);
+}
+
+int perf_mmap__push(struct perf_mmap *md, bool overwrite, bool backward,
+		    void *to, int push(void *to, void *buf, size_t size))
+{
+	u64 head = perf_mmap__read_head(md);
+	u64 old = md->prev;
+	u64 end = head, start = old;
+	unsigned char *data = md->base + page_size;
+	unsigned long size;
+	void *buf;
+	int rc = 0;
+
+	if (rb_find_range(data, md->mask, head, old, &start, &end, backward))
+		return -1;
+
+	if (start == end)
+		return 0;
+
+	size = end - start;
+	if (size > (unsigned long)(md->mask) + 1) {
+		WARN_ONCE(1, "failed to keep up with mmap data. (warn only once)\n");
+
+		md->prev = head;
+		perf_mmap__consume(md, overwrite || backward);
+		return 0;
+	}
+
+	if ((start & md->mask) + size != (end & md->mask)) {
+		buf = &data[start & md->mask];
+		size = md->mask + 1 - (start & md->mask);
+		start += size;
+
+		if (push(to, buf, size) < 0) {
+			rc = -1;
+			goto out;
+		}
+	}
+
+	buf = &data[start & md->mask];
+	size = end - start;
+	start += size;
+
+	if (push(to, buf, size) < 0) {
+		rc = -1;
+		goto out;
+	}
+
+	md->prev = head;
+	perf_mmap__consume(md, overwrite || backward);
+out:
+	return rc;
+}
diff --git a/tools/perf/util/mmap.h b/tools/perf/util/mmap.h
new file mode 100644
index 000000000000..efd78b827b05
--- /dev/null
+++ b/tools/perf/util/mmap.h
@@ -0,0 +1,97 @@
+#ifndef __PERF_MMAP_H
+#define __PERF_MMAP_H 1
+
+#include <linux/compiler.h>
+#include <linux/refcount.h>
+#include <linux/types.h>
+#include <asm/barrier.h>
+#include <stdbool.h>
+#include "auxtrace.h"
+#include "event.h"
+
+/**
+ * struct perf_mmap - perf's ring buffer mmap details
+ *
+ * @refcnt - e.g. code using PERF_EVENT_IOC_SET_OUTPUT to share this
+ */
+struct perf_mmap {
+	void		 *base;
+	int		 mask;
+	int		 fd;
+	refcount_t	 refcnt;
+	u64		 prev;
+	struct auxtrace_mmap auxtrace_mmap;
+	char		 event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8);
+};
+
+/*
+ * State machine of bkw_mmap_state:
+ *
+ *                     .________________(forbid)_____________.
+ *                     |                                     V
+ * NOTREADY --(0)--> RUNNING --(1)--> DATA_PENDING --(2)--> EMPTY
+ *                     ^  ^              |   ^               |
+ *                     |  |__(forbid)____/   |___(forbid)___/|
+ *                     |                                     |
+ *                      \_________________(3)_______________/
+ *
+ * NOTREADY     : Backward ring buffers are not ready
+ * RUNNING      : Backward ring buffers are recording
+ * DATA_PENDING : We are required to collect data from backward ring buffers
+ * EMPTY        : We have collected data from backward ring buffers.
+ *
+ * (0): Setup backward ring buffer
+ * (1): Pause ring buffers for reading
+ * (2): Read from ring buffers
+ * (3): Resume ring buffers for recording
+ */
+enum bkw_mmap_state {
+	BKW_MMAP_NOTREADY,
+	BKW_MMAP_RUNNING,
+	BKW_MMAP_DATA_PENDING,
+	BKW_MMAP_EMPTY,
+};
+
+struct mmap_params {
+	int			    prot, mask;
+	struct auxtrace_mmap_params auxtrace_mp;
+};
+
+int perf_mmap__mmap(struct perf_mmap *map, struct mmap_params *mp, int fd);
+void perf_mmap__munmap(struct perf_mmap *map);
+
+void perf_mmap__get(struct perf_mmap *map);
+void perf_mmap__put(struct perf_mmap *map);
+
+void perf_mmap__consume(struct perf_mmap *map, bool overwrite);
+
+void perf_mmap__read_catchup(struct perf_mmap *md);
+
+static inline u64 perf_mmap__read_head(struct perf_mmap *mm)
+{
+	struct perf_event_mmap_page *pc = mm->base;
+	u64 head = ACCESS_ONCE(pc->data_head);
+	rmb();
+	return head;
+}
+
+static inline void perf_mmap__write_tail(struct perf_mmap *md, u64 tail)
+{
+	struct perf_event_mmap_page *pc = md->base;
+
+	/*
+	 * ensure all reads are done before we write the tail out.
+	 */
+	mb();
+	pc->data_tail = tail;
+}
+
+union perf_event *perf_mmap__read_forward(struct perf_mmap *map, bool check_messup);
+union perf_event *perf_mmap__read_backward(struct perf_mmap *map);
+
+int perf_mmap__push(struct perf_mmap *md, bool overwrite, bool backward,
+		    void *to, int push(void *to, void *buf, size_t size));
+
+size_t perf_mmap__mmap_len(struct perf_mmap *map);
+
+#endif /*__PERF_MMAP_H */
diff --git a/tools/perf/util/namespaces.c b/tools/perf/util/namespaces.c
index a58e91197729..5be021701f34 100644
--- a/tools/perf/util/namespaces.c
+++ b/tools/perf/util/namespaces.c
@@ -11,6 +11,7 @@
 #include "event.h"
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <fcntl.h>
 #include <limits.h>
 #include <sched.h>
 #include <stdlib.h>
diff --git a/tools/perf/util/namespaces.h b/tools/perf/util/namespaces.h
index 05d82601c9a6..760558dcfd18 100644
--- a/tools/perf/util/namespaces.h
+++ b/tools/perf/util/namespaces.h
@@ -9,9 +9,10 @@
 #ifndef __PERF_NAMESPACES_H
 #define __PERF_NAMESPACES_H
 
-#include "../perf.h"
-#include <linux/list.h>
+#include <sys/types.h>
+#include <linux/perf_event.h>
 #include <linux/refcount.h>
+#include <linux/types.h>
 
 struct namespaces_event;
 
diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c
index 4de398cfb577..8e09fd2d842f 100644
--- a/tools/perf/util/ordered-events.c
+++ b/tools/perf/util/ordered-events.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <linux/list.h>
diff --git a/tools/perf/util/ordered-events.h b/tools/perf/util/ordered-events.h
index e11468a9a6e4..96e5292d88e2 100644
--- a/tools/perf/util/ordered-events.h
+++ b/tools/perf/util/ordered-events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __ORDERED_EVENTS_H
 #define __ORDERED_EVENTS_H
 
diff --git a/tools/perf/util/parse-branch-options.c b/tools/perf/util/parse-branch-options.c
index e71fb5f31e84..bd779d9f4d1e 100644
--- a/tools/perf/util/parse-branch-options.c
+++ b/tools/perf/util/parse-branch-options.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "perf.h"
 #include "util/util.h"
 #include "util/debug.h"
diff --git a/tools/perf/util/parse-branch-options.h b/tools/perf/util/parse-branch-options.h
index 6086fd90eb23..11d1722733f2 100644
--- a/tools/perf/util/parse-branch-options.h
+++ b/tools/perf/util/parse-branch-options.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_PARSE_BRANCH_OPTIONS_H
 #define _PERF_PARSE_BRANCH_OPTIONS_H 1
 #include <stdint.h>
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index f6257fb4f08c..a7fcd95961ef 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/hw_breakpoint.h>
 #include <linux/err.h>
 #include <dirent.h>
@@ -28,6 +29,7 @@
 #include "probe-file.h"
 #include "asm/bug.h"
 #include "util/parse-branch-options.h"
+#include "metricgroup.h"
 
 #define MAX_NAME_LEN 100
 
@@ -309,10 +311,11 @@ static char *get_config_name(struct list_head *head_terms)
 static struct perf_evsel *
 __add_event(struct list_head *list, int *idx,
 	    struct perf_event_attr *attr,
-	    char *name, struct cpu_map *cpus,
+	    char *name, struct perf_pmu *pmu,
 	    struct list_head *config_terms, bool auto_merge_stats)
 {
 	struct perf_evsel *evsel;
+	struct cpu_map *cpus = pmu ? pmu->cpus : NULL;
 
 	event_attr_init(attr);
 
@@ -323,7 +326,7 @@ __add_event(struct list_head *list, int *idx,
 	(*idx)++;
 	evsel->cpus        = cpu_map__get(cpus);
 	evsel->own_cpus    = cpu_map__get(cpus);
-	evsel->system_wide = !!cpus;
+	evsel->system_wide = pmu ? pmu->is_uncore : false;
 	evsel->auto_merge_stats = auto_merge_stats;
 
 	if (name)
@@ -1218,11 +1221,17 @@ static int __parse_events_add_pmu(struct parse_events_state *parse_state,
 	struct perf_pmu_info info;
 	struct perf_pmu *pmu;
 	struct perf_evsel *evsel;
+	struct parse_events_error *err = parse_state->error;
 	LIST_HEAD(config_terms);
 
 	pmu = perf_pmu__find(name);
-	if (!pmu)
+	if (!pmu) {
+		if (asprintf(&err->str,
+				"Cannot find PMU `%s'. Missing kernel support?",
+				name) < 0)
+			err->str = NULL;
 		return -EINVAL;
+	}
 
 	if (pmu->default_config) {
 		memcpy(&attr, pmu->default_config,
@@ -1233,7 +1242,7 @@ static int __parse_events_add_pmu(struct parse_events_state *parse_state,
 
 	if (!head_config) {
 		attr.type = pmu->type;
-		evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu->cpus, NULL, auto_merge_stats);
+		evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu, NULL, auto_merge_stats);
 		return evsel ? 0 : -ENOMEM;
 	}
 
@@ -1254,7 +1263,7 @@ static int __parse_events_add_pmu(struct parse_events_state *parse_state,
 		return -EINVAL;
 
 	evsel = __add_event(list, &parse_state->idx, &attr,
-			    get_config_name(head_config), pmu->cpus,
+			    get_config_name(head_config), pmu,
 			    &config_terms, auto_merge_stats);
 	if (evsel) {
 		evsel->unit = info.unit;
@@ -1366,6 +1375,7 @@ struct event_modifier {
 	int exclude_GH;
 	int sample_read;
 	int pinned;
+	int weak;
 };
 
 static int get_event_modifier(struct event_modifier *mod, char *str,
@@ -1384,6 +1394,7 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
 
 	int exclude = eu | ek | eh;
 	int exclude_GH = evsel ? evsel->exclude_GH : 0;
+	int weak = 0;
 
 	memset(mod, 0, sizeof(*mod));
 
@@ -1421,6 +1432,8 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
 			sample_read = 1;
 		} else if (*str == 'D') {
 			pinned = 1;
+		} else if (*str == 'W') {
+			weak = 1;
 		} else
 			break;
 
@@ -1451,6 +1464,7 @@ static int get_event_modifier(struct event_modifier *mod, char *str,
 	mod->exclude_GH = exclude_GH;
 	mod->sample_read = sample_read;
 	mod->pinned = pinned;
+	mod->weak = weak;
 
 	return 0;
 }
@@ -1464,7 +1478,7 @@ static int check_modifier(char *str)
 	char *p = str;
 
 	/* The sizeof includes 0 byte as well. */
-	if (strlen(str) > (sizeof("ukhGHpppPSDI") - 1))
+	if (strlen(str) > (sizeof("ukhGHpppPSDIW") - 1))
 		return -1;
 
 	while (*p) {
@@ -1504,6 +1518,7 @@ int parse_events__modifier_event(struct list_head *list, char *str, bool add)
 		evsel->exclude_GH          = mod.exclude_GH;
 		evsel->sample_read         = mod.sample_read;
 		evsel->precise_max         = mod.precise_max;
+		evsel->weak_group	   = mod.weak;
 
 		if (perf_evsel__is_group_leader(evsel))
 			evsel->attr.pinned = mod.pinned;
@@ -1726,8 +1741,8 @@ static int get_term_width(void)
 	return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col;
 }
 
-static void parse_events_print_error(struct parse_events_error *err,
-				     const char *event)
+void parse_events_print_error(struct parse_events_error *err,
+			      const char *event)
 {
 	const char *str = "invalid or unsupported event: ";
 	char _buf[MAX_WIDTH];
@@ -1782,8 +1797,6 @@ static void parse_events_print_error(struct parse_events_error *err,
 		zfree(&err->str);
 		zfree(&err->help);
 	}
-
-	fprintf(stderr, "Run 'perf list' for a list of valid events\n");
 }
 
 #undef MAX_WIDTH
@@ -1795,8 +1808,10 @@ int parse_events_option(const struct option *opt, const char *str,
 	struct parse_events_error err = { .idx = 0, };
 	int ret = parse_events(evlist, str, &err);
 
-	if (ret)
+	if (ret) {
 		parse_events_print_error(&err, str);
+		fprintf(stderr, "Run 'perf list' for a list of valid events\n");
+	}
 
 	return ret;
 }
@@ -2374,6 +2389,8 @@ void print_events(const char *event_glob, bool name_only, bool quiet_flag,
 	print_tracepoint_events(NULL, NULL, name_only);
 
 	print_sdt_events(NULL, NULL, name_only);
+
+	metricgroup__print(true, true, NULL, name_only);
 }
 
 int parse_events__is_hardcoded_term(struct parse_events_term *term)
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 635135125111..be337c266697 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_PARSE_EVENTS_H
 #define __PERF_PARSE_EVENTS_H
 /*
@@ -202,6 +203,9 @@ int is_valid_tracepoint(const char *event_string);
 int valid_event_mount(const char *eventfs);
 char *parse_events_formats_error_string(char *additional_terms);
 
+void parse_events_print_error(struct parse_events_error *err,
+			      const char *event);
+
 #ifdef HAVE_LIBELF_SUPPORT
 /*
  * If the probe point starts with '%',
diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index c42edeac451f..655ecff636a8 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -5,9 +5,13 @@
 %option stack
 %option bison-locations
 %option yylineno
+%option reject
 
 %{
 #include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
 #include "../perf.h"
 #include "parse-events.h"
 #include "parse-events-bison.h"
@@ -53,9 +57,8 @@ static int str(yyscan_t scanner, int token)
 	return token;
 }
 
-static bool isbpf(yyscan_t scanner)
+static bool isbpf_suffix(char *text)
 {
-	char *text = parse_events_get_text(scanner);
 	int len = strlen(text);
 
 	if (len < 2)
@@ -68,6 +71,17 @@ static bool isbpf(yyscan_t scanner)
 	return false;
 }
 
+static bool isbpf(yyscan_t scanner)
+{
+	char *text = parse_events_get_text(scanner);
+	struct stat st;
+
+	if (!isbpf_suffix(text))
+		return false;
+
+	return stat(text, &st) == 0;
+}
+
 /*
  * This function is called when the parser gets two kind of input:
  *
@@ -141,6 +155,10 @@ do {							\
 	yycolumn += yyleng;				\
 } while (0);
 
+#define USER_REJECT		\
+	yycolumn -= yyleng;	\
+	REJECT
+
 %}
 
 %x mem
@@ -161,7 +179,7 @@ name		[a-zA-Z_*?][a-zA-Z0-9_*?.]*
 name_minus	[a-zA-Z_*?][a-zA-Z0-9\-_*?.:]*
 drv_cfg_term	[a-zA-Z0-9_\.]+(=[a-zA-Z0-9_*?\.:]+)?
 /* If you add a modifier you need to update check_modifier() */
-modifier_event	[ukhpPGHSDI]+
+modifier_event	[ukhpPGHSDIW]+
 modifier_bp	[rwx]{1,3}
 
 %%
@@ -288,6 +306,7 @@ cpu-migrations|migrations			{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COU
 alignment-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_ALIGNMENT_FAULTS); }
 emulation-faults				{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_EMULATION_FAULTS); }
 dummy						{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
+duration_time					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_DUMMY); }
 bpf-output					{ return sym(yyscanner, PERF_TYPE_SOFTWARE, PERF_COUNT_SW_BPF_OUTPUT); }
 
 	/*
@@ -322,8 +341,8 @@ r{num_raw_hex}		{ return raw(yyscanner); }
 {num_hex}		{ return value(yyscanner, 16); }
 
 {modifier_event}	{ return str(yyscanner, PE_MODIFIER_EVENT); }
-{bpf_object}		{ if (!isbpf(yyscanner)) REJECT; return str(yyscanner, PE_BPF_OBJECT); }
-{bpf_source}		{ if (!isbpf(yyscanner)) REJECT; return str(yyscanner, PE_BPF_SOURCE); }
+{bpf_object}		{ if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_OBJECT); }
+{bpf_source}		{ if (!isbpf(yyscanner)) { USER_REJECT }; return str(yyscanner, PE_BPF_SOURCE); }
 {name}			{ return pmu_str_check(yyscanner); }
 "/"			{ BEGIN(config); return '/'; }
 -			{ return '-'; }
diff --git a/tools/perf/util/parse-regs-options.c b/tools/perf/util/parse-regs-options.c
index 646ecf736aad..e6599e290f46 100644
--- a/tools/perf/util/parse-regs-options.c
+++ b/tools/perf/util/parse-regs-options.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "perf.h"
 #include "util/util.h"
 #include "util/debug.h"
diff --git a/tools/perf/util/parse-regs-options.h b/tools/perf/util/parse-regs-options.h
index 7d762b188007..cdefb1acf6be 100644
--- a/tools/perf/util/parse-regs-options.h
+++ b/tools/perf/util/parse-regs-options.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_PARSE_REGS_OPTIONS_H
 #define _PERF_PARSE_REGS_OPTIONS_H 1
 struct option;
diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
index 50ec3bc87a60..933f5c6bffb4 100644
--- a/tools/perf/util/path.c
+++ b/tools/perf/util/path.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * I'm tired of doing "vsnprintf()" etc just to open a
  * file, so here's a "return static buffer with printf"
diff --git a/tools/perf/util/path.h b/tools/perf/util/path.h
index 9a276a58e3c2..14a254ada7eb 100644
--- a/tools/perf/util/path.h
+++ b/tools/perf/util/path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_PATH_H
 #define _PERF_PATH_H
 
diff --git a/tools/perf/util/perf-hooks.c b/tools/perf/util/perf-hooks.c
index d55092964da2..4f3aa8d99ef4 100644
--- a/tools/perf/util/perf-hooks.c
+++ b/tools/perf/util/perf-hooks.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * perf_hooks.c
  *
diff --git a/tools/perf/util/perf-hooks.h b/tools/perf/util/perf-hooks.h
index 838d5797bc1e..27fbec62d4fe 100644
--- a/tools/perf/util/perf-hooks.h
+++ b/tools/perf/util/perf-hooks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_UTIL_PERF_HOOKS_H
 #define PERF_UTIL_PERF_HOOKS_H
 
diff --git a/tools/perf/util/perf_regs.c b/tools/perf/util/perf_regs.c
index b2ae039eff85..2acfcc527cac 100644
--- a/tools/perf/util/perf_regs.c
+++ b/tools/perf/util/perf_regs.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include "perf_regs.h"
 #include "event.h"
diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
index 32b37d19dcc3..c9319f8d17a6 100644
--- a/tools/perf/util/perf_regs.h
+++ b/tools/perf/util/perf_regs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_REGS_H
 #define __PERF_REGS_H
 
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index ac16a9db1fb5..07cb2ac041d7 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -1,7 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/list.h>
 #include <linux/compiler.h>
 #include <sys/types.h>
 #include <errno.h>
+#include <fcntl.h>
 #include <sys/stat.h>
 #include <unistd.h>
 #include <stdio.h>
@@ -470,17 +472,36 @@ static void pmu_read_sysfs(void)
 	closedir(dir);
 }
 
+static struct cpu_map *__pmu_cpumask(const char *path)
+{
+	FILE *file;
+	struct cpu_map *cpus;
+
+	file = fopen(path, "r");
+	if (!file)
+		return NULL;
+
+	cpus = cpu_map__read(file);
+	fclose(file);
+	return cpus;
+}
+
+/*
+ * Uncore PMUs have a "cpumask" file under sysfs. CPU PMUs (e.g. on arm/arm64)
+ * may have a "cpus" file.
+ */
+#define CPUS_TEMPLATE_UNCORE	"%s/bus/event_source/devices/%s/cpumask"
+#define CPUS_TEMPLATE_CPU	"%s/bus/event_source/devices/%s/cpus"
+
 static struct cpu_map *pmu_cpumask(const char *name)
 {
-	struct stat st;
 	char path[PATH_MAX];
-	FILE *file;
 	struct cpu_map *cpus;
 	const char *sysfs = sysfs__mountpoint();
 	const char *templates[] = {
-		 "%s/bus/event_source/devices/%s/cpumask",
-		 "%s/bus/event_source/devices/%s/cpus",
-		 NULL
+		CPUS_TEMPLATE_UNCORE,
+		CPUS_TEMPLATE_CPU,
+		NULL
 	};
 	const char **template;
 
@@ -489,20 +510,25 @@ static struct cpu_map *pmu_cpumask(const char *name)
 
 	for (template = templates; *template; template++) {
 		snprintf(path, PATH_MAX, *template, sysfs, name);
-		if (stat(path, &st) == 0)
-			break;
+		cpus = __pmu_cpumask(path);
+		if (cpus)
+			return cpus;
 	}
 
-	if (!*template)
-		return NULL;
+	return NULL;
+}
 
-	file = fopen(path, "r");
-	if (!file)
-		return NULL;
+static bool pmu_is_uncore(const char *name)
+{
+	char path[PATH_MAX];
+	struct cpu_map *cpus;
+	const char *sysfs = sysfs__mountpoint();
 
-	cpus = cpu_map__read(file);
-	fclose(file);
-	return cpus;
+	snprintf(path, PATH_MAX, CPUS_TEMPLATE_UNCORE, sysfs, name);
+	cpus = __pmu_cpumask(path);
+	cpu_map__put(cpus);
+
+	return !!cpus;
 }
 
 /*
@@ -516,16 +542,8 @@ char * __weak get_cpuid_str(void)
 	return NULL;
 }
 
-/*
- * From the pmu_events_map, find the table of PMU events that corresponds
- * to the current running CPU. Then, add all PMU events from that table
- * as aliases.
- */
-static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
+static char *perf_pmu__getcpuid(void)
 {
-	int i;
-	struct pmu_events_map *map;
-	struct pmu_event *pe;
 	char *cpuid;
 	static bool printed;
 
@@ -535,22 +553,50 @@ static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
 	if (!cpuid)
 		cpuid = get_cpuid_str();
 	if (!cpuid)
-		return;
+		return NULL;
 
 	if (!printed) {
 		pr_debug("Using CPUID %s\n", cpuid);
 		printed = true;
 	}
+	return cpuid;
+}
+
+struct pmu_events_map *perf_pmu__find_map(void)
+{
+	struct pmu_events_map *map;
+	char *cpuid = perf_pmu__getcpuid();
+	int i;
 
 	i = 0;
-	while (1) {
+	for (;;) {
 		map = &pmu_events_map[i++];
-		if (!map->table)
-			goto out;
+		if (!map->table) {
+			map = NULL;
+			break;
+		}
 
 		if (!strcmp(map->cpuid, cpuid))
 			break;
 	}
+	free(cpuid);
+	return map;
+}
+
+/*
+ * From the pmu_events_map, find the table of PMU events that corresponds
+ * to the current running CPU. Then, add all PMU events from that table
+ * as aliases.
+ */
+static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
+{
+	int i;
+	struct pmu_events_map *map;
+	struct pmu_event *pe;
+
+	map = perf_pmu__find_map();
+	if (!map)
+		return;
 
 	/*
 	 * Found a matching PMU events table. Create aliases
@@ -560,8 +606,11 @@ static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
 		const char *pname;
 
 		pe = &map->table[i++];
-		if (!pe->name)
+		if (!pe->name) {
+			if (pe->metric_group || pe->metric_name)
+				continue;
 			break;
+		}
 
 		pname = pe->pmu ? pe->pmu : "cpu";
 		if (strncmp(pname, name, strlen(pname)))
@@ -575,9 +624,6 @@ static void pmu_add_cpu_aliases(struct list_head *head, const char *name)
 				(char *)pe->metric_expr,
 				(char *)pe->metric_name);
 	}
-
-out:
-	free(cpuid);
 }
 
 struct perf_event_attr * __weak
@@ -617,6 +663,8 @@ static struct perf_pmu *pmu_lookup(const char *name)
 
 	pmu->cpus = pmu_cpumask(name);
 
+	pmu->is_uncore = pmu_is_uncore(name);
+
 	INIT_LIST_HEAD(&pmu->format);
 	INIT_LIST_HEAD(&pmu->aliases);
 	list_splice(&format, &pmu->format);
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 389e9729331f..27c75e635866 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PMU_H
 #define __PMU_H
 
@@ -22,6 +23,7 @@ struct perf_pmu {
 	char *name;
 	__u32 type;
 	bool selectable;
+	bool is_uncore;
 	struct perf_event_attr *default_config;
 	struct cpu_map *cpus;
 	struct list_head format;  /* HEAD struct perf_pmu_format -> list */
@@ -90,4 +92,6 @@ int perf_pmu__test(void);
 
 struct perf_event_attr *perf_pmu__get_default_config(struct perf_pmu *pmu);
 
+struct pmu_events_map *perf_pmu__find_map(void);
+
 #endif /* __PMU_H */
diff --git a/tools/perf/util/print_binary.c b/tools/perf/util/print_binary.c
index e908177b9976..23e367063446 100644
--- a/tools/perf/util/print_binary.c
+++ b/tools/perf/util/print_binary.c
@@ -1,41 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "print_binary.h"
 #include <linux/log2.h>
 #include "sane_ctype.h"
 
-void print_binary(unsigned char *data, size_t len,
-		  size_t bytes_per_line, print_binary_t printer,
-		  void *extra)
+int binary__fprintf(unsigned char *data, size_t len,
+		    size_t bytes_per_line, binary__fprintf_t printer,
+		    void *extra, FILE *fp)
 {
 	size_t i, j, mask;
+	int printed = 0;
 
 	if (!printer)
-		return;
+		return 0;
 
 	bytes_per_line = roundup_pow_of_two(bytes_per_line);
 	mask = bytes_per_line - 1;
 
-	printer(BINARY_PRINT_DATA_BEGIN, 0, extra);
+	printed += printer(BINARY_PRINT_DATA_BEGIN, 0, extra, fp);
 	for (i = 0; i < len; i++) {
 		if ((i & mask) == 0) {
-			printer(BINARY_PRINT_LINE_BEGIN, -1, extra);
-			printer(BINARY_PRINT_ADDR, i, extra);
+			printed += printer(BINARY_PRINT_LINE_BEGIN, -1, extra, fp);
+			printed += printer(BINARY_PRINT_ADDR, i, extra, fp);
 		}
 
-		printer(BINARY_PRINT_NUM_DATA, data[i], extra);
+		printed += printer(BINARY_PRINT_NUM_DATA, data[i], extra, fp);
 
 		if (((i & mask) == mask) || i == len - 1) {
 			for (j = 0; j < mask-(i & mask); j++)
-				printer(BINARY_PRINT_NUM_PAD, -1, extra);
+				printed += printer(BINARY_PRINT_NUM_PAD, -1, extra, fp);
 
-			printer(BINARY_PRINT_SEP, i, extra);
+			printer(BINARY_PRINT_SEP, i, extra, fp);
 			for (j = i & ~mask; j <= i; j++)
-				printer(BINARY_PRINT_CHAR_DATA, data[j], extra);
+				printed += printer(BINARY_PRINT_CHAR_DATA, data[j], extra, fp);
 			for (j = 0; j < mask-(i & mask); j++)
-				printer(BINARY_PRINT_CHAR_PAD, i, extra);
-			printer(BINARY_PRINT_LINE_END, -1, extra);
+				printed += printer(BINARY_PRINT_CHAR_PAD, i, extra, fp);
+			printed += printer(BINARY_PRINT_LINE_END, -1, extra, fp);
 		}
 	}
-	printer(BINARY_PRINT_DATA_END, -1, extra);
+	printed += printer(BINARY_PRINT_DATA_END, -1, extra, fp);
+	return printed;
 }
 
 int is_printable_array(char *p, unsigned int len)
diff --git a/tools/perf/util/print_binary.h b/tools/perf/util/print_binary.h
index da0427263d2d..2a1554afc957 100644
--- a/tools/perf/util/print_binary.h
+++ b/tools/perf/util/print_binary.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_PRINT_BINARY_H
 #define PERF_PRINT_BINARY_H
 
 #include <stddef.h>
+#include <stdio.h>
 
 enum binary_printer_ops {
 	BINARY_PRINT_DATA_BEGIN,
@@ -16,12 +18,19 @@ enum binary_printer_ops {
 	BINARY_PRINT_DATA_END,
 };
 
-typedef void (*print_binary_t)(enum binary_printer_ops op,
-			       unsigned int val, void *extra);
+typedef int (*binary__fprintf_t)(enum binary_printer_ops op,
+				 unsigned int val, void *extra, FILE *fp);
 
-void print_binary(unsigned char *data, size_t len,
-		  size_t bytes_per_line, print_binary_t printer,
-		  void *extra);
+int binary__fprintf(unsigned char *data, size_t len,
+		    size_t bytes_per_line, binary__fprintf_t printer,
+		    void *extra, FILE *fp);
+
+static inline void print_binary(unsigned char *data, size_t len,
+				size_t bytes_per_line, binary__fprintf_t printer,
+				void *extra)
+{
+	binary__fprintf(data, len, bytes_per_line, printer, extra, stdout);
+}
 
 int is_printable_array(char *p, unsigned int len);
 
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 078681d12168..45b14f020558 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PROBE_EVENT_H
 #define _PROBE_EVENT_H
 
diff --git a/tools/perf/util/probe-file.c b/tools/perf/util/probe-file.c
index cdf8d83a484c..4ae1123c6794 100644
--- a/tools/perf/util/probe-file.c
+++ b/tools/perf/util/probe-file.c
@@ -15,6 +15,7 @@
  *
  */
 #include <errno.h>
+#include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/uio.h>
diff --git a/tools/perf/util/probe-file.h b/tools/perf/util/probe-file.h
index 2ca4163abafe..63f29b1d22c1 100644
--- a/tools/perf/util/probe-file.h
+++ b/tools/perf/util/probe-file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PROBE_FILE_H
 #define __PROBE_FILE_H
 
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index 27f061551012..16252980ff00 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PROBE_FINDER_H
 #define _PROBE_FINDER_H
 
diff --git a/tools/perf/util/pstack.c b/tools/perf/util/pstack.c
index b234a6e3d0d4..797fe1ae2d2e 100644
--- a/tools/perf/util/pstack.c
+++ b/tools/perf/util/pstack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Simple pointer stack
  *
diff --git a/tools/perf/util/pstack.h b/tools/perf/util/pstack.h
index ded7f2e36624..8729b8be061d 100644
--- a/tools/perf/util/pstack.h
+++ b/tools/perf/util/pstack.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_PSTACK_
 #define _PERF_PSTACK_
 
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index e66dc495809a..b4f2f06722a7 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -10,6 +10,7 @@ util/ctype.c
 util/evlist.c
 util/evsel.c
 util/cpumap.c
+util/mmap.c
 util/namespaces.c
 ../lib/bitmap.c
 ../lib/find_bit.c
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index c129e99114ae..8e49d9cafcfc 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <Python.h>
 #include <structmember.h>
 #include <inttypes.h>
diff --git a/tools/perf/util/quote.c b/tools/perf/util/quote.c
index 1ba8920151d8..22eaa201aa27 100644
--- a/tools/perf/util/quote.c
+++ b/tools/perf/util/quote.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdlib.h>
 #include "strbuf.h"
diff --git a/tools/perf/util/quote.h b/tools/perf/util/quote.h
index 055ca45bed99..274bf26d3511 100644
--- a/tools/perf/util/quote.h
+++ b/tools/perf/util/quote.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_QUOTE_H
 #define __PERF_QUOTE_H
 
diff --git a/tools/perf/util/rb_resort.h b/tools/perf/util/rb_resort.h
index 808cc45611fe..a920f702a74d 100644
--- a/tools/perf/util/rb_resort.h
+++ b/tools/perf/util/rb_resort.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_RESORT_RB_H_
 #define _PERF_RESORT_RB_H_
 /*
@@ -143,7 +144,8 @@ struct __name##_sorted *__name = __name##_sorted__new
 				  __ilist->rblist.nr_entries)
 
 /* For 'struct machine->threads' */
-#define DECLARE_RESORT_RB_MACHINE_THREADS(__name, __machine)			\
-	DECLARE_RESORT_RB(__name)(&__machine->threads, __machine->nr_threads)
+#define DECLARE_RESORT_RB_MACHINE_THREADS(__name, __machine, hash_bucket)	\
+	DECLARE_RESORT_RB(__name)(&__machine->threads[hash_bucket].entries,	\
+				  __machine->threads[hash_bucket].nr)
 
 #endif /* _PERF_RESORT_RB_H_ */
diff --git a/tools/perf/util/rblist.h b/tools/perf/util/rblist.h
index ff9913b994c2..4c8638a22571 100644
--- a/tools/perf/util/rblist.h
+++ b/tools/perf/util/rblist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_RBLIST_H
 #define __PERF_RBLIST_H
 
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index d91bdf5a1aa4..1e97937b03a9 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "evlist.h"
 #include "evsel.h"
 #include "cpumap.h"
diff --git a/tools/perf/util/rwsem.c b/tools/perf/util/rwsem.c
new file mode 100644
index 000000000000..5e52e7baa7b6
--- /dev/null
+++ b/tools/perf/util/rwsem.c
@@ -0,0 +1,32 @@
+#include "util.h"
+#include "rwsem.h"
+
+int init_rwsem(struct rw_semaphore *sem)
+{
+	return pthread_rwlock_init(&sem->lock, NULL);
+}
+
+int exit_rwsem(struct rw_semaphore *sem)
+{
+	return pthread_rwlock_destroy(&sem->lock);
+}
+
+int down_read(struct rw_semaphore *sem)
+{
+	return perf_singlethreaded ? 0 : pthread_rwlock_rdlock(&sem->lock);
+}
+
+int up_read(struct rw_semaphore *sem)
+{
+	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
+}
+
+int down_write(struct rw_semaphore *sem)
+{
+	return perf_singlethreaded ? 0 : pthread_rwlock_wrlock(&sem->lock);
+}
+
+int up_write(struct rw_semaphore *sem)
+{
+	return perf_singlethreaded ? 0 : pthread_rwlock_unlock(&sem->lock);
+}
diff --git a/tools/perf/util/rwsem.h b/tools/perf/util/rwsem.h
new file mode 100644
index 000000000000..94565ad4d494
--- /dev/null
+++ b/tools/perf/util/rwsem.h
@@ -0,0 +1,19 @@
+#ifndef _PERF_RWSEM_H
+#define _PERF_RWSEM_H
+
+#include <pthread.h>
+
+struct rw_semaphore {
+	pthread_rwlock_t lock;
+};
+
+int init_rwsem(struct rw_semaphore *sem);
+int exit_rwsem(struct rw_semaphore *sem);
+
+int down_read(struct rw_semaphore *sem);
+int up_read(struct rw_semaphore *sem);
+
+int down_write(struct rw_semaphore *sem);
+int up_write(struct rw_semaphore *sem);
+
+#endif /* _PERF_RWSEM_H */
diff --git a/tools/perf/util/sane_ctype.h b/tools/perf/util/sane_ctype.h
index 4308c22c22ad..c2b42ff9ff32 100644
--- a/tools/perf/util/sane_ctype.h
+++ b/tools/perf/util/sane_ctype.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_SANE_CTYPE_H
 #define _PERF_SANE_CTYPE_H
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index a7ebd9fe8e40..5c412310f266 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <linux/kernel.h>
@@ -32,14 +33,14 @@ static int perf_session__deliver_event(struct perf_session *session,
 
 static int perf_session__open(struct perf_session *session)
 {
-	struct perf_data_file *file = session->file;
+	struct perf_data *data = session->data;
 
 	if (perf_session__read_header(session) < 0) {
 		pr_err("incompatible file format (rerun with -v to learn more)\n");
 		return -1;
 	}
 
-	if (perf_data_file__is_pipe(file))
+	if (perf_data__is_pipe(data))
 		return 0;
 
 	if (perf_header__has_feat(&session->header, HEADER_STAT))
@@ -120,7 +121,7 @@ static int ordered_events__deliver_event(struct ordered_events *oe,
 					   session->tool, event->file_offset);
 }
 
-struct perf_session *perf_session__new(struct perf_data_file *file,
+struct perf_session *perf_session__new(struct perf_data *data,
 				       bool repipe, struct perf_tool *tool)
 {
 	struct perf_session *session = zalloc(sizeof(*session));
@@ -134,13 +135,13 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 	machines__init(&session->machines);
 	ordered_events__init(&session->ordered_events, ordered_events__deliver_event);
 
-	if (file) {
-		if (perf_data_file__open(file))
+	if (data) {
+		if (perf_data__open(data))
 			goto out_delete;
 
-		session->file = file;
+		session->data = data;
 
-		if (perf_data_file__is_read(file)) {
+		if (perf_data__is_read(data)) {
 			if (perf_session__open(session) < 0)
 				goto out_close;
 
@@ -148,7 +149,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 			 * set session attributes that are present in perf.data
 			 * but not in pipe-mode.
 			 */
-			if (!file->is_pipe) {
+			if (!data->is_pipe) {
 				perf_session__set_id_hdr_size(session);
 				perf_session__set_comm_exec(session);
 			}
@@ -157,7 +158,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 		session->machines.host.env = &perf_env;
 	}
 
-	if (!file || perf_data_file__is_write(file)) {
+	if (!data || perf_data__is_write(data)) {
 		/*
 		 * In O_RDONLY mode this will be performed when reading the
 		 * kernel MMAP event, in perf_event__process_mmap().
@@ -170,7 +171,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 	 * In pipe-mode, evlist is empty until PERF_RECORD_HEADER_ATTR is
 	 * processed, so perf_evlist__sample_id_all is not meaningful here.
 	 */
-	if ((!file || !file->is_pipe) && tool && tool->ordering_requires_timestamps &&
+	if ((!data || !data->is_pipe) && tool && tool->ordering_requires_timestamps &&
 	    tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
 		dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
 		tool->ordered_events = false;
@@ -179,7 +180,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 	return session;
 
  out_close:
-	perf_data_file__close(file);
+	perf_data__close(data);
  out_delete:
 	perf_session__delete(session);
  out:
@@ -201,8 +202,8 @@ void perf_session__delete(struct perf_session *session)
 	perf_session__delete_threads(session);
 	perf_env__exit(&session->header.env);
 	machines__exit(&session->machines);
-	if (session->file)
-		perf_data_file__close(session->file);
+	if (session->data)
+		perf_data__close(session->data);
 	free(session);
 }
 
@@ -290,8 +291,8 @@ static s64 process_event_auxtrace_stub(struct perf_tool *tool __maybe_unused,
 				       __maybe_unused)
 {
 	dump_printf(": unhandled!\n");
-	if (perf_data_file__is_pipe(session->file))
-		skipn(perf_data_file__fd(session->file), event->auxtrace.size);
+	if (perf_data__is_pipe(session->data))
+		skipn(perf_data__fd(session->data), event->auxtrace.size);
 	return event->auxtrace.size;
 }
 
@@ -374,6 +375,8 @@ void perf_tool__fill_defaults(struct perf_tool *tool)
 		tool->mmap2 = process_event_stub;
 	if (tool->comm == NULL)
 		tool->comm = process_event_stub;
+	if (tool->namespaces == NULL)
+		tool->namespaces = process_event_stub;
 	if (tool->fork == NULL)
 		tool->fork = process_event_stub;
 	if (tool->exit == NULL)
@@ -1347,7 +1350,7 @@ static s64 perf_session__process_user_event(struct perf_session *session,
 {
 	struct ordered_events *oe = &session->ordered_events;
 	struct perf_tool *tool = session->tool;
-	int fd = perf_data_file__fd(session->file);
+	int fd = perf_data__fd(session->data);
 	int err;
 
 	dump_event(session->evlist, event, file_offset, NULL);
@@ -1447,10 +1450,10 @@ int perf_session__peek_event(struct perf_session *session, off_t file_offset,
 		goto out_parse_sample;
 	}
 
-	if (perf_data_file__is_pipe(session->file))
+	if (perf_data__is_pipe(session->data))
 		return -1;
 
-	fd = perf_data_file__fd(session->file);
+	fd = perf_data__fd(session->data);
 	hdr_sz = sizeof(struct perf_event_header);
 
 	if (buf_sz < hdr_sz)
@@ -1685,7 +1688,7 @@ static int __perf_session__process_pipe_events(struct perf_session *session)
 {
 	struct ordered_events *oe = &session->ordered_events;
 	struct perf_tool *tool = session->tool;
-	int fd = perf_data_file__fd(session->file);
+	int fd = perf_data__fd(session->data);
 	union perf_event *event;
 	uint32_t size, cur_size = 0;
 	void *buf = NULL;
@@ -1826,7 +1829,7 @@ static int __perf_session__process_events(struct perf_session *session,
 {
 	struct ordered_events *oe = &session->ordered_events;
 	struct perf_tool *tool = session->tool;
-	int fd = perf_data_file__fd(session->file);
+	int fd = perf_data__fd(session->data);
 	u64 head, page_offset, file_offset, file_pos, size;
 	int err, mmap_prot, mmap_flags, map_idx = 0;
 	size_t	mmap_size;
@@ -1847,7 +1850,7 @@ static int __perf_session__process_events(struct perf_session *session,
 	if (data_offset + data_size < file_size)
 		file_size = data_offset + data_size;
 
-	ui_progress__init(&prog, file_size, "Processing events...");
+	ui_progress__init_size(&prog, file_size, "Processing events...");
 
 	mmap_size = MMAP_SIZE;
 	if (mmap_size > file_size) {
@@ -1943,13 +1946,13 @@ out_err:
 
 int perf_session__process_events(struct perf_session *session)
 {
-	u64 size = perf_data_file__size(session->file);
+	u64 size = perf_data__size(session->data);
 	int err;
 
 	if (perf_session__register_idle_thread(session) < 0)
 		return -ENOMEM;
 
-	if (!perf_data_file__is_pipe(session->file))
+	if (!perf_data__is_pipe(session->data))
 		err = __perf_session__process_events(session,
 						     session->header.data_offset,
 						     session->header.data_size, size);
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 47b5e7dbcb18..da1434a7c120 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_SESSION_H
 #define __PERF_SESSION_H
 
@@ -32,13 +33,13 @@ struct perf_session {
 	void			*one_mmap_addr;
 	u64			one_mmap_offset;
 	struct ordered_events	ordered_events;
-	struct perf_data_file	*file;
+	struct perf_data	*data;
 	struct perf_tool	*tool;
 };
 
 struct perf_tool;
 
-struct perf_session *perf_session__new(struct perf_data_file *file,
+struct perf_session *perf_session__new(struct perf_data *data,
 				       bool repipe, struct perf_tool *tool);
 void perf_session__delete(struct perf_session *session);
 
@@ -113,7 +114,7 @@ int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 
 extern volatile int session_done;
 
-#define session_done()	ACCESS_ONCE(session_done)
+#define session_done()	READ_ONCE(session_done)
 
 int perf_session__deliver_synth_event(struct perf_session *session,
 				      union perf_event *event,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index eb3ab902a1c0..a00eacdf02ed 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <regex.h>
@@ -225,6 +226,9 @@ static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r)
 	if (sym_l == sym_r)
 		return 0;
 
+	if (sym_l->inlined || sym_r->inlined)
+		return strcmp(sym_l->name, sym_r->name);
+
 	if (sym_l->start != sym_r->start)
 		return (int64_t)(sym_r->start - sym_l->start);
 
@@ -283,6 +287,9 @@ static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym,
 			ret += repsep_snprintf(bf + ret, size - ret, "%.*s",
 					       width - ret,
 					       sym->name);
+			if (sym->inlined)
+				ret += repsep_snprintf(bf + ret, size - ret,
+						       " (inlined)");
 		}
 	} else {
 		size_t len = BITS_PER_LONG / 4;
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f36dc4980a6c..f5901c10a563 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_SORT_H
 #define __PERF_SORT_H
 #include "../builtin.h"
@@ -129,7 +130,6 @@ struct hist_entry {
 	};
 	char			*srcline;
 	char			*srcfile;
-	struct inline_node	*inline_node;
 	struct symbol		*parent;
 	struct branch_info	*branch_info;
 	struct hists		*hists;
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index ed8e8d2de942..d19f05c56de6 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -10,7 +11,7 @@
 #include "util/debug.h"
 #include "util/callchain.h"
 #include "srcline.h"
-
+#include "string2.h"
 #include "symbol.h"
 
 bool srcline_full_filename;
@@ -33,28 +34,17 @@ static const char *dso__name(struct dso *dso)
 	return dso_name;
 }
 
-static int inline_list__append(char *filename, char *funcname, int line_nr,
-			       struct inline_node *node, struct dso *dso)
+static int inline_list__append(struct symbol *symbol, char *srcline,
+			       struct inline_node *node)
 {
 	struct inline_list *ilist;
-	char *demangled;
 
 	ilist = zalloc(sizeof(*ilist));
 	if (ilist == NULL)
 		return -1;
 
-	ilist->filename = filename;
-	ilist->line_nr = line_nr;
-
-	if (dso != NULL) {
-		demangled = dso__demangle_sym(dso, 0, funcname);
-		if (demangled == NULL) {
-			ilist->funcname = funcname;
-		} else {
-			ilist->funcname = demangled;
-			free(funcname);
-		}
-	}
+	ilist->symbol = symbol;
+	ilist->srcline = srcline;
 
 	if (callchain_param.order == ORDER_CALLEE)
 		list_add_tail(&ilist->list, &node->val);
@@ -64,6 +54,65 @@ static int inline_list__append(char *filename, char *funcname, int line_nr,
 	return 0;
 }
 
+/* basename version that takes a const input string */
+static const char *gnu_basename(const char *path)
+{
+	const char *base = strrchr(path, '/');
+
+	return base ? base + 1 : path;
+}
+
+static char *srcline_from_fileline(const char *file, unsigned int line)
+{
+	char *srcline;
+
+	if (!file)
+		return NULL;
+
+	if (!srcline_full_filename)
+		file = gnu_basename(file);
+
+	if (asprintf(&srcline, "%s:%u", file, line) < 0)
+		return NULL;
+
+	return srcline;
+}
+
+static struct symbol *new_inline_sym(struct dso *dso,
+				     struct symbol *base_sym,
+				     const char *funcname)
+{
+	struct symbol *inline_sym;
+	char *demangled = NULL;
+
+	if (dso) {
+		demangled = dso__demangle_sym(dso, 0, funcname);
+		if (demangled)
+			funcname = demangled;
+	}
+
+	if (base_sym && strcmp(funcname, base_sym->name) == 0) {
+		/* reuse the real, existing symbol */
+		inline_sym = base_sym;
+		/* ensure that we don't alias an inlined symbol, which could
+		 * lead to double frees in inline_node__delete
+		 */
+		assert(!base_sym->inlined);
+	} else {
+		/* create a fake symbol for the inline frame */
+		inline_sym = symbol__new(base_sym ? base_sym->start : 0,
+					 base_sym ? base_sym->end : 0,
+					 base_sym ? base_sym->binding : 0,
+					 funcname);
+		if (inline_sym)
+			inline_sym->inlined = 1;
+	}
+
+	free(demangled);
+
+	return inline_sym;
+}
+
 #ifdef HAVE_LIBBFD_SUPPORT
 
 /*
@@ -207,18 +256,23 @@ static void addr2line_cleanup(struct a2l_data *a2l)
 #define MAX_INLINE_NEST 1024
 
 static int inline_list__append_dso_a2l(struct dso *dso,
-				       struct inline_node *node)
+				       struct inline_node *node,
+				       struct symbol *sym)
 {
 	struct a2l_data *a2l = dso->a2l;
-	char *funcname = a2l->funcname ? strdup(a2l->funcname) : NULL;
-	char *filename = a2l->filename ? strdup(a2l->filename) : NULL;
+	struct symbol *inline_sym = new_inline_sym(dso, sym, a2l->funcname);
+	char *srcline = NULL;
 
-	return inline_list__append(filename, funcname, a2l->line, node, dso);
+	if (a2l->filename)
+		srcline = srcline_from_fileline(a2l->filename, a2l->line);
+
+	return inline_list__append(inline_sym, srcline, node);
 }
 
 static int addr2line(const char *dso_name, u64 addr,
 		     char **file, unsigned int *line, struct dso *dso,
-		     bool unwind_inlines, struct inline_node *node)
+		     bool unwind_inlines, struct inline_node *node,
+		     struct symbol *sym)
 {
 	int ret = 0;
 	struct a2l_data *a2l = dso->a2l;
@@ -244,7 +298,7 @@ static int addr2line(const char *dso_name, u64 addr,
 	if (unwind_inlines) {
 		int cnt = 0;
 
-		if (node && inline_list__append_dso_a2l(dso, node))
+		if (node && inline_list__append_dso_a2l(dso, node, sym))
 			return 0;
 
 		while (bfd_find_inliner_info(a2l->abfd, &a2l->filename,
@@ -255,7 +309,7 @@ static int addr2line(const char *dso_name, u64 addr,
 				a2l->filename = NULL;
 
 			if (node != NULL) {
-				if (inline_list__append_dso_a2l(dso, node))
+				if (inline_list__append_dso_a2l(dso, node, sym))
 					return 0;
 				// found at least one inline frame
 				ret = 1;
@@ -287,7 +341,7 @@ void dso__free_a2l(struct dso *dso)
 }
 
 static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
-	struct dso *dso)
+					struct dso *dso, struct symbol *sym)
 {
 	struct inline_node *node;
 
@@ -300,17 +354,8 @@ static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
 	INIT_LIST_HEAD(&node->val);
 	node->addr = addr;
 
-	if (!addr2line(dso_name, addr, NULL, NULL, dso, TRUE, node))
-		goto out_free_inline_node;
-
-	if (list_empty(&node->val))
-		goto out_free_inline_node;
-
+	addr2line(dso_name, addr, NULL, NULL, dso, true, node, sym);
 	return node;
-
-out_free_inline_node:
-	inline_node__delete(node);
-	return NULL;
 }
 
 #else /* HAVE_LIBBFD_SUPPORT */
@@ -340,7 +385,8 @@ static int addr2line(const char *dso_name, u64 addr,
 		     char **file, unsigned int *line_nr,
 		     struct dso *dso __maybe_unused,
 		     bool unwind_inlines __maybe_unused,
-		     struct inline_node *node __maybe_unused)
+		     struct inline_node *node __maybe_unused,
+		     struct symbol *sym __maybe_unused)
 {
 	FILE *fp;
 	char cmd[PATH_MAX];
@@ -380,16 +426,18 @@ void dso__free_a2l(struct dso *dso __maybe_unused)
 }
 
 static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
-	struct dso *dso __maybe_unused)
+					struct dso *dso __maybe_unused,
+					struct symbol *sym)
 {
 	FILE *fp;
 	char cmd[PATH_MAX];
 	struct inline_node *node;
 	char *filename = NULL;
-	size_t len;
+	char *funcname = NULL;
+	size_t filelen, funclen;
 	unsigned int line_nr = 0;
 
-	scnprintf(cmd, sizeof(cmd), "addr2line -e %s -i %016"PRIx64,
+	scnprintf(cmd, sizeof(cmd), "addr2line -e %s -i -f %016"PRIx64,
 		  dso_name, addr);
 
 	fp = popen(cmd, "r");
@@ -407,26 +455,34 @@ static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
 	INIT_LIST_HEAD(&node->val);
 	node->addr = addr;
 
-	while (getline(&filename, &len, fp) != -1) {
-		if (filename_split(filename, &line_nr) != 1) {
-			free(filename);
+	/* addr2line -f generates two lines for each inlined functions */
+	while (getline(&funcname, &funclen, fp) != -1) {
+		char *srcline;
+		struct symbol *inline_sym;
+
+		rtrim(funcname);
+
+		if (getline(&filename, &filelen, fp) == -1)
 			goto out;
-		}
 
-		if (inline_list__append(filename, NULL, line_nr, node,
-					NULL) != 0)
+		if (filename_split(filename, &line_nr) != 1)
 			goto out;
 
-		filename = NULL;
+		srcline = srcline_from_fileline(filename, line_nr);
+		inline_sym = new_inline_sym(dso, sym, funcname);
+
+		if (inline_list__append(inline_sym, srcline, node) != 0) {
+			free(srcline);
+			if (inline_sym && inline_sym->inlined)
+				symbol__delete(inline_sym);
+			goto out;
+		}
 	}
 
 out:
 	pclose(fp);
-
-	if (list_empty(&node->val)) {
-		inline_node__delete(node);
-		return NULL;
-	}
+	free(filename);
+	free(funcname);
 
 	return node;
 }
@@ -454,19 +510,18 @@ char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
 	if (dso_name == NULL)
 		goto out;
 
-	if (!addr2line(dso_name, addr, &file, &line, dso, unwind_inlines, NULL))
+	if (!addr2line(dso_name, addr, &file, &line, dso,
+		       unwind_inlines, NULL, sym))
 		goto out;
 
-	if (asprintf(&srcline, "%s:%u",
-				srcline_full_filename ? file : basename(file),
-				line) < 0) {
-		free(file);
+	srcline = srcline_from_fileline(file, line);
+	free(file);
+
+	if (!srcline)
 		goto out;
-	}
 
 	dso->a2l_fails = 0;
 
-	free(file);
 	return srcline;
 
 out:
@@ -500,7 +555,74 @@ char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
 	return __get_srcline(dso, addr, sym, show_sym, show_addr, false);
 }
 
-struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr)
+struct srcline_node {
+	u64			addr;
+	char			*srcline;
+	struct rb_node		rb_node;
+};
+
+void srcline__tree_insert(struct rb_root *tree, u64 addr, char *srcline)
+{
+	struct rb_node **p = &tree->rb_node;
+	struct rb_node *parent = NULL;
+	struct srcline_node *i, *node;
+
+	node = zalloc(sizeof(struct srcline_node));
+	if (!node) {
+		perror("not enough memory for the srcline node");
+		return;
+	}
+
+	node->addr = addr;
+	node->srcline = srcline;
+
+	while (*p != NULL) {
+		parent = *p;
+		i = rb_entry(parent, struct srcline_node, rb_node);
+		if (addr < i->addr)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+	rb_link_node(&node->rb_node, parent, p);
+	rb_insert_color(&node->rb_node, tree);
+}
+
+char *srcline__tree_find(struct rb_root *tree, u64 addr)
+{
+	struct rb_node *n = tree->rb_node;
+
+	while (n) {
+		struct srcline_node *i = rb_entry(n, struct srcline_node,
+						  rb_node);
+
+		if (addr < i->addr)
+			n = n->rb_left;
+		else if (addr > i->addr)
+			n = n->rb_right;
+		else
+			return i->srcline;
+	}
+
+	return NULL;
+}
+
+void srcline__tree_delete(struct rb_root *tree)
+{
+	struct srcline_node *pos;
+	struct rb_node *next = rb_first(tree);
+
+	while (next) {
+		pos = rb_entry(next, struct srcline_node, rb_node);
+		next = rb_next(&pos->rb_node);
+		rb_erase(&pos->rb_node, tree);
+		free_srcline(pos->srcline);
+		zfree(&pos);
+	}
+}
+
+struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr,
+					    struct symbol *sym)
 {
 	const char *dso_name;
 
@@ -508,7 +630,7 @@ struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr)
 	if (dso_name == NULL)
 		return NULL;
 
-	return addr2inlines(dso_name, addr, dso);
+	return addr2inlines(dso_name, addr, dso, sym);
 }
 
 void inline_node__delete(struct inline_node *node)
@@ -517,10 +639,63 @@ void inline_node__delete(struct inline_node *node)
 
 	list_for_each_entry_safe(ilist, tmp, &node->val, list) {
 		list_del_init(&ilist->list);
-		zfree(&ilist->filename);
-		zfree(&ilist->funcname);
+		free_srcline(ilist->srcline);
+		/* only the inlined symbols are owned by the list */
+		if (ilist->symbol && ilist->symbol->inlined)
+			symbol__delete(ilist->symbol);
 		free(ilist);
 	}
 
 	free(node);
 }
+
+void inlines__tree_insert(struct rb_root *tree, struct inline_node *inlines)
+{
+	struct rb_node **p = &tree->rb_node;
+	struct rb_node *parent = NULL;
+	const u64 addr = inlines->addr;
+	struct inline_node *i;
+
+	while (*p != NULL) {
+		parent = *p;
+		i = rb_entry(parent, struct inline_node, rb_node);
+		if (addr < i->addr)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+	rb_link_node(&inlines->rb_node, parent, p);
+	rb_insert_color(&inlines->rb_node, tree);
+}
+
+struct inline_node *inlines__tree_find(struct rb_root *tree, u64 addr)
+{
+	struct rb_node *n = tree->rb_node;
+
+	while (n) {
+		struct inline_node *i = rb_entry(n, struct inline_node,
+						 rb_node);
+
+		if (addr < i->addr)
+			n = n->rb_left;
+		else if (addr > i->addr)
+			n = n->rb_right;
+		else
+			return i;
+	}
+
+	return NULL;
+}
+
+void inlines__tree_delete(struct rb_root *tree)
+{
+	struct inline_node *pos;
+	struct rb_node *next = rb_first(tree);
+
+	while (next) {
+		pos = rb_entry(next, struct inline_node, rb_node);
+		next = rb_next(&pos->rb_node);
+		rb_erase(&pos->rb_node, tree);
+		inline_node__delete(pos);
+	}
+}
diff --git a/tools/perf/util/srcline.h b/tools/perf/util/srcline.h
index 7b52ba88676e..847b7086182c 100644
--- a/tools/perf/util/srcline.h
+++ b/tools/perf/util/srcline.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_SRCLINE_H
 #define PERF_SRCLINE_H
 
 #include <linux/list.h>
+#include <linux/rbtree.h>
 #include <linux/types.h>
 
 struct dso;
@@ -14,21 +16,38 @@ char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
 		  bool show_sym, bool show_addr, bool unwind_inlines);
 void free_srcline(char *srcline);
 
+/* insert the srcline into the DSO, which will take ownership */
+void srcline__tree_insert(struct rb_root *tree, u64 addr, char *srcline);
+/* find previously inserted srcline */
+char *srcline__tree_find(struct rb_root *tree, u64 addr);
+/* delete all srclines within the tree */
+void srcline__tree_delete(struct rb_root *tree);
+
 #define SRCLINE_UNKNOWN  ((char *) "??:0")
 
 struct inline_list {
-	char			*filename;
-	char			*funcname;
-	unsigned int		line_nr;
+	struct symbol		*symbol;
+	char			*srcline;
 	struct list_head	list;
 };
 
 struct inline_node {
 	u64			addr;
 	struct list_head	val;
+	struct rb_node		rb_node;
 };
 
-struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr);
+/* parse inlined frames for the given address */
+struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr,
+					    struct symbol *sym);
+/* free resources associated to the inline node list */
 void inline_node__delete(struct inline_node *node);
 
+/* insert the inline node list into the DSO, which will take ownership */
+void inlines__tree_insert(struct rb_root *tree, struct inline_node *inlines);
+/* find previously inserted inline node list */
+struct inline_node *inlines__tree_find(struct rb_root *tree, u64 addr);
+/* delete all nodes within the tree of inline_node s */
+void inlines__tree_delete(struct rb_root *tree);
+
 #endif /* PERF_SRCLINE_H */
diff --git a/tools/perf/util/stat-shadow.c b/tools/perf/util/stat-shadow.c
index a04cf56d3517..855e35cbb1dc 100644
--- a/tools/perf/util/stat-shadow.c
+++ b/tools/perf/util/stat-shadow.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include "evsel.h"
 #include "stat.h"
@@ -6,6 +7,7 @@
 #include "rblist.h"
 #include "evlist.h"
 #include "expr.h"
+#include "metricgroup.h"
 
 enum {
 	CTX_BIT_USER	= 1 << 0,
@@ -55,7 +57,6 @@ struct saved_value {
 	struct rb_node rb_node;
 	struct perf_evsel *evsel;
 	int cpu;
-	int ctx;
 	struct stats stats;
 };
 
@@ -66,8 +67,6 @@ static int saved_value_cmp(struct rb_node *rb_node, const void *entry)
 					     rb_node);
 	const struct saved_value *b = entry;
 
-	if (a->ctx != b->ctx)
-		return a->ctx - b->ctx;
 	if (a->cpu != b->cpu)
 		return a->cpu - b->cpu;
 	if (a->evsel == b->evsel)
@@ -89,13 +88,12 @@ static struct rb_node *saved_value_new(struct rblist *rblist __maybe_unused,
 }
 
 static struct saved_value *saved_value_lookup(struct perf_evsel *evsel,
-					      int cpu, int ctx,
+					      int cpu,
 					      bool create)
 {
 	struct rb_node *nd;
 	struct saved_value dm = {
 		.cpu = cpu,
-		.ctx = ctx,
 		.evsel = evsel,
 	};
 	nd = rblist__find(&runtime_saved_values, &dm);
@@ -181,59 +179,60 @@ void perf_stat__reset_shadow_stats(void)
  * more semantic information such as miss/hit ratios,
  * instruction rates, etc:
  */
-void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
+void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
 				    int cpu)
 {
 	int ctx = evsel_context(counter);
 
+	count *= counter->scale;
+
 	if (perf_evsel__match(counter, SOFTWARE, SW_TASK_CLOCK) ||
 	    perf_evsel__match(counter, SOFTWARE, SW_CPU_CLOCK))
-		update_stats(&runtime_nsecs_stats[cpu], count[0]);
+		update_stats(&runtime_nsecs_stats[cpu], count);
 	else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
-		update_stats(&runtime_cycles_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_cycles_stats[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
-		update_stats(&runtime_cycles_in_tx_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_cycles_in_tx_stats[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, TRANSACTION_START))
-		update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_transaction_stats[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, ELISION_START))
-		update_stats(&runtime_elision_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_elision_stats[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, TOPDOWN_TOTAL_SLOTS))
-		update_stats(&runtime_topdown_total_slots[ctx][cpu], count[0]);
+		update_stats(&runtime_topdown_total_slots[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_ISSUED))
-		update_stats(&runtime_topdown_slots_issued[ctx][cpu], count[0]);
+		update_stats(&runtime_topdown_slots_issued[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, TOPDOWN_SLOTS_RETIRED))
-		update_stats(&runtime_topdown_slots_retired[ctx][cpu], count[0]);
+		update_stats(&runtime_topdown_slots_retired[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, TOPDOWN_FETCH_BUBBLES))
-		update_stats(&runtime_topdown_fetch_bubbles[ctx][cpu],count[0]);
+		update_stats(&runtime_topdown_fetch_bubbles[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, TOPDOWN_RECOVERY_BUBBLES))
-		update_stats(&runtime_topdown_recovery_bubbles[ctx][cpu], count[0]);
+		update_stats(&runtime_topdown_recovery_bubbles[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
-		update_stats(&runtime_stalled_cycles_front_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_stalled_cycles_front_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
-		update_stats(&runtime_stalled_cycles_back_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_stalled_cycles_back_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HARDWARE, HW_BRANCH_INSTRUCTIONS))
-		update_stats(&runtime_branches_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_branches_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HARDWARE, HW_CACHE_REFERENCES))
-		update_stats(&runtime_cacherefs_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_cacherefs_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1D))
-		update_stats(&runtime_l1_dcache_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_l1_dcache_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_L1I))
-		update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_ll_cache_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_LL))
-		update_stats(&runtime_ll_cache_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_ll_cache_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_DTLB))
-		update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_dtlb_cache_stats[ctx][cpu], count);
 	else if (perf_evsel__match(counter, HW_CACHE, HW_CACHE_ITLB))
-		update_stats(&runtime_itlb_cache_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_itlb_cache_stats[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, SMI_NUM))
-		update_stats(&runtime_smi_num_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_smi_num_stats[ctx][cpu], count);
 	else if (perf_stat_evsel__is(counter, APERF))
-		update_stats(&runtime_aperf_stats[ctx][cpu], count[0]);
+		update_stats(&runtime_aperf_stats[ctx][cpu], count);
 
 	if (counter->collect_stat) {
-		struct saved_value *v = saved_value_lookup(counter, cpu, ctx,
-							   true);
-		update_stats(&v->stats, count[0]);
+		struct saved_value *v = saved_value_lookup(counter, cpu, true);
+		update_stats(&v->stats, count);
 	}
 }
 
@@ -627,15 +626,68 @@ static void print_smi_cost(int cpu, struct perf_evsel *evsel,
 	out->print_metric(out->ctx, NULL, "%4.0f", "SMI#", smi_num);
 }
 
+static void generic_metric(const char *metric_expr,
+			   struct perf_evsel **metric_events,
+			   char *name,
+			   const char *metric_name,
+			   double avg,
+			   int cpu,
+			   struct perf_stat_output_ctx *out)
+{
+	print_metric_t print_metric = out->print_metric;
+	struct parse_ctx pctx;
+	double ratio;
+	int i;
+	void *ctxp = out->ctx;
+
+	expr__ctx_init(&pctx);
+	expr__add_id(&pctx, name, avg);
+	for (i = 0; metric_events[i]; i++) {
+		struct saved_value *v;
+		struct stats *stats;
+		double scale;
+
+		if (!strcmp(metric_events[i]->name, "duration_time")) {
+			stats = &walltime_nsecs_stats;
+			scale = 1e-9;
+		} else {
+			v = saved_value_lookup(metric_events[i], cpu, false);
+			if (!v)
+				break;
+			stats = &v->stats;
+			scale = 1.0;
+		}
+		expr__add_id(&pctx, metric_events[i]->name, avg_stats(stats)*scale);
+	}
+	if (!metric_events[i]) {
+		const char *p = metric_expr;
+
+		if (expr__parse(&ratio, &pctx, &p) == 0)
+			print_metric(ctxp, NULL, "%8.1f",
+				metric_name ?
+				metric_name :
+				out->force_header ?  name : "",
+				ratio);
+		else
+			print_metric(ctxp, NULL, NULL,
+				     out->force_header ?
+				     (metric_name ? metric_name : name) : "", 0);
+	} else
+		print_metric(ctxp, NULL, NULL, "", 0);
+}
+
 void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 				   double avg, int cpu,
-				   struct perf_stat_output_ctx *out)
+				   struct perf_stat_output_ctx *out,
+				   struct rblist *metric_events)
 {
 	void *ctxp = out->ctx;
 	print_metric_t print_metric = out->print_metric;
 	double total, ratio = 0.0, total2;
 	const char *color = NULL;
 	int ctx = evsel_context(evsel);
+	struct metric_event *me;
+	int num = 1;
 
 	if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
 		total = avg_stats(&runtime_cycles_stats[ctx][cpu]);
@@ -819,33 +871,8 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 		else
 			print_metric(ctxp, NULL, NULL, name, 0);
 	} else if (evsel->metric_expr) {
-		struct parse_ctx pctx;
-		int i;
-
-		expr__ctx_init(&pctx);
-		expr__add_id(&pctx, evsel->name, avg);
-		for (i = 0; evsel->metric_events[i]; i++) {
-			struct saved_value *v;
-
-			v = saved_value_lookup(evsel->metric_events[i], cpu, ctx, false);
-			if (!v)
-				break;
-			expr__add_id(&pctx, evsel->metric_events[i]->name,
-					     avg_stats(&v->stats));
-		}
-		if (!evsel->metric_events[i]) {
-			const char *p = evsel->metric_expr;
-
-			if (expr__parse(&ratio, &pctx, &p) == 0)
-				print_metric(ctxp, NULL, "%8.1f",
-					evsel->metric_name ?
-					evsel->metric_name :
-					out->force_header ?  evsel->name : "",
-					ratio);
-			else
-				print_metric(ctxp, NULL, NULL, "", 0);
-		} else
-			print_metric(ctxp, NULL, NULL, "", 0);
+		generic_metric(evsel->metric_expr, evsel->metric_events, evsel->name,
+				evsel->metric_name, avg, cpu, out);
 	} else if (runtime_nsecs_stats[cpu].n != 0) {
 		char unit = 'M';
 		char unit_buf[10];
@@ -863,6 +890,20 @@ void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 	} else if (perf_stat_evsel__is(evsel, SMI_NUM)) {
 		print_smi_cost(cpu, evsel, out);
 	} else {
-		print_metric(ctxp, NULL, NULL, NULL, 0);
+		num = 0;
 	}
+
+	if ((me = metricgroup__lookup(metric_events, evsel, false)) != NULL) {
+		struct metric_expr *mexp;
+
+		list_for_each_entry (mexp, &me->head, nd) {
+			if (num++ > 0)
+				out->new_line(ctxp);
+			generic_metric(mexp->metric_expr, mexp->metric_events,
+					evsel->name, mexp->metric_name,
+					avg, cpu, out);
+		}
+	}
+	if (num == 0)
+		print_metric(ctxp, NULL, NULL, NULL, 0);
 }
diff --git a/tools/perf/util/stat.c b/tools/perf/util/stat.c
index 35e9848734d6..151e9efd7286 100644
--- a/tools/perf/util/stat.c
+++ b/tools/perf/util/stat.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <inttypes.h>
 #include <math.h>
@@ -69,7 +70,7 @@ double rel_stddev_stats(double stddev, double avg)
 bool __perf_evsel_stat__is(struct perf_evsel *evsel,
 			   enum perf_stat_evsel_id id)
 {
-	struct perf_stat_evsel *ps = evsel->priv;
+	struct perf_stat_evsel *ps = evsel->stats;
 
 	return ps->id == id;
 }
@@ -93,7 +94,7 @@ static const char *id_str[PERF_STAT_EVSEL_ID__MAX] = {
 
 void perf_stat_evsel_id_init(struct perf_evsel *evsel)
 {
-	struct perf_stat_evsel *ps = evsel->priv;
+	struct perf_stat_evsel *ps = evsel->stats;
 	int i;
 
 	/* ps->id is 0 hence PERF_STAT_EVSEL_ID__NONE by default */
@@ -109,7 +110,7 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel)
 static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
 {
 	int i;
-	struct perf_stat_evsel *ps = evsel->priv;
+	struct perf_stat_evsel *ps = evsel->stats;
 
 	for (i = 0; i < 3; i++)
 		init_stats(&ps->res_stats[i]);
@@ -119,8 +120,8 @@ static void perf_evsel__reset_stat_priv(struct perf_evsel *evsel)
 
 static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
 {
-	evsel->priv = zalloc(sizeof(struct perf_stat_evsel));
-	if (evsel->priv == NULL)
+	evsel->stats = zalloc(sizeof(struct perf_stat_evsel));
+	if (evsel->stats == NULL)
 		return -ENOMEM;
 	perf_evsel__reset_stat_priv(evsel);
 	return 0;
@@ -128,11 +129,11 @@ static int perf_evsel__alloc_stat_priv(struct perf_evsel *evsel)
 
 static void perf_evsel__free_stat_priv(struct perf_evsel *evsel)
 {
-	struct perf_stat_evsel *ps = evsel->priv;
+	struct perf_stat_evsel *ps = evsel->stats;
 
 	if (ps)
 		free(ps->group_data);
-	zfree(&evsel->priv);
+	zfree(&evsel->stats);
 }
 
 static int perf_evsel__alloc_prev_raw_counts(struct perf_evsel *evsel,
@@ -277,7 +278,9 @@ process_counter_values(struct perf_stat_config *config, struct perf_evsel *evsel
 			perf_evsel__compute_deltas(evsel, cpu, thread, count);
 		perf_counts_values__scale(count, config->scale, NULL);
 		if (config->aggr_mode == AGGR_NONE)
-			perf_stat__update_shadow_stats(evsel, count->values, cpu);
+			perf_stat__update_shadow_stats(evsel, count->val, cpu);
+		if (config->aggr_mode == AGGR_THREAD)
+			perf_stat__update_shadow_stats(evsel, count->val, 0);
 		break;
 	case AGGR_GLOBAL:
 		aggr->val += count->val;
@@ -318,9 +321,8 @@ int perf_stat_process_counter(struct perf_stat_config *config,
 			      struct perf_evsel *counter)
 {
 	struct perf_counts_values *aggr = &counter->counts->aggr;
-	struct perf_stat_evsel *ps = counter->priv;
+	struct perf_stat_evsel *ps = counter->stats;
 	u64 *count = counter->counts->aggr.values;
-	u64 val;
 	int i, ret;
 
 	aggr->val = aggr->ena = aggr->run = 0;
@@ -360,8 +362,7 @@ int perf_stat_process_counter(struct perf_stat_config *config,
 	/*
 	 * Save the full runtime - to allow normalization during printout:
 	 */
-	val = counter->scale * *count;
-	perf_stat__update_shadow_stats(counter, &val, 0);
+	perf_stat__update_shadow_stats(counter, *count, 0);
 
 	return 0;
 }
diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
index eacaf958e19d..eefca5c981fd 100644
--- a/tools/perf/util/stat.h
+++ b/tools/perf/util/stat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_STATS_H
 #define __PERF_STATS_H
 
@@ -82,7 +83,7 @@ typedef void (*new_line_t )(void *ctx);
 
 void perf_stat__init_shadow_stats(void);
 void perf_stat__reset_shadow_stats(void);
-void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
+void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 count,
 				    int cpu);
 struct perf_stat_output_ctx {
 	void *ctx;
@@ -91,9 +92,11 @@ struct perf_stat_output_ctx {
 	bool force_header;
 };
 
+struct rblist;
 void perf_stat__print_shadow_stats(struct perf_evsel *evsel,
 				   double avg, int cpu,
-				   struct perf_stat_output_ctx *out);
+				   struct perf_stat_output_ctx *out,
+				   struct rblist *metric_events);
 void perf_stat__collect_metric_expr(struct perf_evlist *);
 
 int perf_evlist__alloc_stats(struct perf_evlist *evlist, bool alloc_raw);
diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c
index aafe908b82b5..3d1cf5bf7f18 100644
--- a/tools/perf/util/strbuf.c
+++ b/tools/perf/util/strbuf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "debug.h"
 #include "util.h"
 #include <linux/kernel.h>
diff --git a/tools/perf/util/strbuf.h b/tools/perf/util/strbuf.h
index 802d743378af..ea94d8628980 100644
--- a/tools/perf/util/strbuf.h
+++ b/tools/perf/util/strbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_STRBUF_H
 #define __PERF_STRBUF_H
 
diff --git a/tools/perf/util/strfilter.c b/tools/perf/util/strfilter.c
index 4dc0af669a30..7f3253d44afd 100644
--- a/tools/perf/util/strfilter.c
+++ b/tools/perf/util/strfilter.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "util.h"
 #include "string2.h"
 #include "strfilter.h"
diff --git a/tools/perf/util/strfilter.h b/tools/perf/util/strfilter.h
index cff5eda88728..e0c25a40f796 100644
--- a/tools/perf/util/strfilter.h
+++ b/tools/perf/util/strfilter.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_STRFILTER_H
 #define __PERF_STRFILTER_H
 /* General purpose glob matching filter */
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index cca53b693a48..aaa08ee8c717 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "string2.h"
 #include <linux/kernel.h>
 #include <linux/string.h>
diff --git a/tools/perf/util/string2.h b/tools/perf/util/string2.h
index 2f619681bd6a..ee14ca5451ab 100644
--- a/tools/perf/util/string2.h
+++ b/tools/perf/util/string2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_STRING_H
 #define PERF_STRING_H
 
diff --git a/tools/perf/util/strlist.h b/tools/perf/util/strlist.h
index 19207e50fce5..d58f1e08b170 100644
--- a/tools/perf/util/strlist.h
+++ b/tools/perf/util/strlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_STRLIST_H
 #define __PERF_STRLIST_H
 
diff --git a/tools/perf/util/svghelper.h b/tools/perf/util/svghelper.h
index 946fdf2db97c..e55338d5c3bd 100644
--- a/tools/perf/util/svghelper.h
+++ b/tools/perf/util/svghelper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_SVGHELPER_H
 #define __PERF_SVGHELPER_H
 
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 5c39f420111e..2de770511e70 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <fcntl.h>
 #include <stdio.h>
 #include <errno.h>
@@ -810,12 +811,6 @@ static u64 ref_reloc(struct kmap *kmap)
 void __weak arch__sym_update(struct symbol *s __maybe_unused,
 		GElf_Sym *sym __maybe_unused) { }
 
-void __weak arch__adjust_sym_map_offset(GElf_Sym *sym, GElf_Shdr *shdr,
-				       struct map *map __maybe_unused)
-{
-	sym->st_value -= shdr->sh_addr - shdr->sh_offset;
-}
-
 int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
 		  struct symsrc *runtime_ss, int kmodule)
 {
@@ -996,7 +991,7 @@ int dso__load_sym(struct dso *dso, struct map *map, struct symsrc *syms_ss,
 
 			/* Adjust symbol to map to file offset */
 			if (adjust_kernel_syms)
-				arch__adjust_sym_map_offset(&sym, &shdr, map);
+				sym.st_value -= shdr.sh_addr - shdr.sh_offset;
 
 			if (strcmp(section_name,
 				   (curr_dso->short_name +
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index 1a5aa35b0100..ff48d0d49584 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "symbol.h"
 #include "util.h"
 
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 5909ee4c7ade..1b67a8639dfe 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dirent.h>
 #include <errno.h>
 #include <stdlib.h>
@@ -45,6 +46,7 @@ struct symbol_conf symbol_conf = {
 	.show_hist_headers	= true,
 	.symfs			= "",
 	.event_group		= true,
+	.inline_name		= true,
 };
 
 static enum dso_binary_type binary_type_symtab[] = {
@@ -226,7 +228,7 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
 	struct maps *maps = &mg->maps[type];
 	struct map *next, *curr;
 
-	pthread_rwlock_wrlock(&maps->lock);
+	down_write(&maps->lock);
 
 	curr = maps__first(maps);
 	if (curr == NULL)
@@ -246,7 +248,7 @@ void __map_groups__fixup_end(struct map_groups *mg, enum map_type type)
 		curr->end = ~0ULL;
 
 out_unlock:
-	pthread_rwlock_unlock(&maps->lock);
+	up_write(&maps->lock);
 }
 
 struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name)
@@ -1671,7 +1673,7 @@ struct map *map_groups__find_by_name(struct map_groups *mg,
 	struct maps *maps = &mg->maps[type];
 	struct map *map;
 
-	pthread_rwlock_rdlock(&maps->lock);
+	down_read(&maps->lock);
 
 	for (map = maps__first(maps); map; map = map__next(map)) {
 		if (map->dso && strcmp(map->dso->short_name, name) == 0)
@@ -1681,7 +1683,7 @@ struct map *map_groups__find_by_name(struct map_groups *mg,
 	map = NULL;
 
 out_unlock:
-	pthread_rwlock_unlock(&maps->lock);
+	up_read(&maps->lock);
 	return map;
 }
 
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2bd6a1f01a1c..a4f0075b4e5c 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_SYMBOL
 #define __PERF_SYMBOL 1
 
@@ -59,6 +60,7 @@ struct symbol {
 	u8		binding;
 	u8		idle:1;
 	u8		ignore:1;
+	u8		inlined:1;
 	u8		arch_sym;
 	char		name[0];
 };
@@ -208,6 +210,7 @@ struct addr_location {
 	struct thread *thread;
 	struct map    *map;
 	struct symbol *sym;
+	const char    *srcline;
 	u64	      addr;
 	char	      level;
 	u8	      filtered;
@@ -344,9 +347,6 @@ int setup_intlist(struct intlist **list, const char *list_str,
 #ifdef HAVE_LIBELF_SUPPORT
 bool elf__needs_adjust_symbols(GElf_Ehdr ehdr);
 void arch__sym_update(struct symbol *s, GElf_Sym *sym);
-void arch__adjust_sym_map_offset(GElf_Sym *sym,
-				 GElf_Shdr *shdr __maybe_unused,
-				 struct map *map __maybe_unused);
 #endif
 
 #define SYMBOL_A 0
diff --git a/tools/perf/util/symbol_fprintf.c b/tools/perf/util/symbol_fprintf.c
index 63694e174e5c..6dd2cb88ccbe 100644
--- a/tools/perf/util/symbol_fprintf.c
+++ b/tools/perf/util/symbol_fprintf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <elf.h>
 #include <inttypes.h>
 #include <stdio.h>
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 19e5db90394c..6eea7cff3d4e 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -15,9 +15,9 @@
 
 #include "syscalltbl.h"
 #include <stdlib.h>
+#include <linux/compiler.h>
 
 #ifdef HAVE_SYSCALL_TABLE
-#include <linux/compiler.h>
 #include <string.h>
 #include "string2.h"
 #include "util.h"
diff --git a/tools/perf/util/syscalltbl.h b/tools/perf/util/syscalltbl.h
index e9fb8786da7c..c8e7e9ce0f01 100644
--- a/tools/perf/util/syscalltbl.h
+++ b/tools/perf/util/syscalltbl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_SYSCALLTBL_H
 #define __PERF_SYSCALLTBL_H
 
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index 7381b1ca4041..446aa7a56f25 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_TARGET_H
 #define _PERF_TARGET_H
 
diff --git a/tools/perf/util/term.c b/tools/perf/util/term.c
index 8f254a74d97d..e7aa82c06c76 100644
--- a/tools/perf/util/term.c
+++ b/tools/perf/util/term.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "term.h"
 #include <stdlib.h>
 #include <termios.h>
diff --git a/tools/perf/util/term.h b/tools/perf/util/term.h
index 2c06a61846a1..607b170a9017 100644
--- a/tools/perf/util/term.h
+++ b/tools/perf/util/term.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_TERM_H
 #define __PERF_TERM_H
 
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index aee9a42102ba..68b65b10579b 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../perf.h"
 #include <errno.h>
 #include <stdlib.h>
@@ -45,6 +46,8 @@ struct thread *thread__new(pid_t pid, pid_t tid)
 		thread->cpu = -1;
 		INIT_LIST_HEAD(&thread->namespaces_list);
 		INIT_LIST_HEAD(&thread->comm_list);
+		init_rwsem(&thread->namespaces_lock);
+		init_rwsem(&thread->comm_lock);
 
 		comm_str = malloc(32);
 		if (!comm_str)
@@ -83,18 +86,26 @@ void thread__delete(struct thread *thread)
 		map_groups__put(thread->mg);
 		thread->mg = NULL;
 	}
+	down_write(&thread->namespaces_lock);
 	list_for_each_entry_safe(namespaces, tmp_namespaces,
 				 &thread->namespaces_list, list) {
 		list_del(&namespaces->list);
 		namespaces__free(namespaces);
 	}
+	up_write(&thread->namespaces_lock);
+
+	down_write(&thread->comm_lock);
 	list_for_each_entry_safe(comm, tmp_comm, &thread->comm_list, list) {
 		list_del(&comm->list);
 		comm__free(comm);
 	}
+	up_write(&thread->comm_lock);
+
 	unwind__finish_access(thread);
 	nsinfo__zput(thread->nsinfo);
 
+	exit_rwsem(&thread->namespaces_lock);
+	exit_rwsem(&thread->comm_lock);
 	free(thread);
 }
 
@@ -125,8 +136,8 @@ struct namespaces *thread__namespaces(const struct thread *thread)
 	return list_first_entry(&thread->namespaces_list, struct namespaces, list);
 }
 
-int thread__set_namespaces(struct thread *thread, u64 timestamp,
-			   struct namespaces_event *event)
+static int __thread__set_namespaces(struct thread *thread, u64 timestamp,
+				    struct namespaces_event *event)
 {
 	struct namespaces *new, *curr = thread__namespaces(thread);
 
@@ -149,6 +160,17 @@ int thread__set_namespaces(struct thread *thread, u64 timestamp,
 	return 0;
 }
 
+int thread__set_namespaces(struct thread *thread, u64 timestamp,
+			   struct namespaces_event *event)
+{
+	int ret;
+
+	down_write(&thread->namespaces_lock);
+	ret = __thread__set_namespaces(thread, timestamp, event);
+	up_write(&thread->namespaces_lock);
+	return ret;
+}
+
 struct comm *thread__comm(const struct thread *thread)
 {
 	if (list_empty(&thread->comm_list))
@@ -170,8 +192,8 @@ struct comm *thread__exec_comm(const struct thread *thread)
 	return last;
 }
 
-int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp,
-		       bool exec)
+static int ____thread__set_comm(struct thread *thread, const char *str,
+				u64 timestamp, bool exec)
 {
 	struct comm *new, *curr = thread__comm(thread);
 
@@ -195,6 +217,17 @@ int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp,
 	return 0;
 }
 
+int __thread__set_comm(struct thread *thread, const char *str, u64 timestamp,
+		       bool exec)
+{
+	int ret;
+
+	down_write(&thread->comm_lock);
+	ret = ____thread__set_comm(thread, str, timestamp, exec);
+	up_write(&thread->comm_lock);
+	return ret;
+}
+
 int thread__set_comm_from_proc(struct thread *thread)
 {
 	char path[64];
@@ -212,7 +245,7 @@ int thread__set_comm_from_proc(struct thread *thread)
 	return err;
 }
 
-const char *thread__comm_str(const struct thread *thread)
+static const char *__thread__comm_str(const struct thread *thread)
 {
 	const struct comm *comm = thread__comm(thread);
 
@@ -222,6 +255,17 @@ const char *thread__comm_str(const struct thread *thread)
 	return comm__str(comm);
 }
 
+const char *thread__comm_str(const struct thread *thread)
+{
+	const char *str;
+
+	down_read((struct rw_semaphore *)&thread->comm_lock);
+	str = __thread__comm_str(thread);
+	up_read((struct rw_semaphore *)&thread->comm_lock);
+
+	return str;
+}
+
 /* CHECKME: it should probably better return the max comm len from its comm list */
 int thread__comm_len(struct thread *thread)
 {
@@ -264,7 +308,7 @@ static int __thread__prepare_access(struct thread *thread)
 		struct maps *maps = &thread->mg->maps[i];
 		struct map *map;
 
-		pthread_rwlock_rdlock(&maps->lock);
+		down_read(&maps->lock);
 
 		for (map = maps__first(maps); map; map = map__next(map)) {
 			err = unwind__prepare_access(thread, map, &initialized);
@@ -272,7 +316,7 @@ static int __thread__prepare_access(struct thread *thread)
 				break;
 		}
 
-		pthread_rwlock_unlock(&maps->lock);
+		up_read(&maps->lock);
 	}
 
 	return err;
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index cb1a5dd5c2b9..40cfa36c022a 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_THREAD_H
 #define __PERF_THREAD_H
 
@@ -9,6 +10,7 @@
 #include "symbol.h"
 #include <strlist.h>
 #include <intlist.h>
+#include "rwsem.h"
 
 struct thread_stack;
 struct unwind_libunwind_ops;
@@ -29,7 +31,9 @@ struct thread {
 	int			comm_len;
 	bool			dead; /* if set thread has exited */
 	struct list_head	namespaces_list;
+	struct rw_semaphore	namespaces_lock;
 	struct list_head	comm_list;
+	struct rw_semaphore	comm_lock;
 	u64			db_id;
 
 	void			*priv;
diff --git a/tools/perf/util/thread_map.c b/tools/perf/util/thread_map.c
index 63ead7b06324..be0d5a736dea 100644
--- a/tools/perf/util/thread_map.c
+++ b/tools/perf/util/thread_map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <dirent.h>
 #include <errno.h>
 #include <limits.h>
diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index bd34d7a0b9fa..f15803985435 100644
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_THREAD_MAP_H
 #define __PERF_THREAD_MAP_H
 
diff --git a/tools/perf/util/time-utils.c b/tools/perf/util/time-utils.c
index 5b5d0214debd..81927d027417 100644
--- a/tools/perf/util/time-utils.c
+++ b/tools/perf/util/time-utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <string.h>
 #include <sys/time.h>
diff --git a/tools/perf/util/time-utils.h b/tools/perf/util/time-utils.h
index 8656be08513b..15b475c50ccf 100644
--- a/tools/perf/util/time-utils.h
+++ b/tools/perf/util/time-utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TIME_UTILS_H_
 #define _TIME_UTILS_H_
 
diff --git a/tools/perf/util/tool.h b/tools/perf/util/tool.h
index d549e50db397..2532b558099b 100644
--- a/tools/perf/util/tool.h
+++ b/tools/perf/util/tool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_TOOL_H
 #define __PERF_TOOL_H
 
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index 9bdfb78a9a35..9892323cdd7c 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_TOP_H
 #define __PERF_TOP_H 1
 
@@ -37,6 +38,7 @@ struct perf_top {
 	int		   sym_pcnt_filter;
 	const char	   *sym_filter;
 	float		   min_percent;
+	unsigned int	   nr_threads_synthesize;
 };
 
 #define CONSOLE_CLEAR ""
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index e7d60d05596d..d7f2113462fb 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -28,7 +28,6 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <sys/wait.h>
-#include <pthread.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 8a9a677f7576..40b425949aa3 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -27,7 +27,6 @@
 #include <sys/stat.h>
 #include <sys/wait.h>
 #include <sys/mman.h>
-#include <pthread.h>
 #include <fcntl.h>
 #include <unistd.h>
 #include <errno.h>
diff --git a/tools/perf/util/trace-event.c b/tools/perf/util/trace-event.c
index c330780674fc..16a776371d03 100644
--- a/tools/perf/util/trace-event.c
+++ b/tools/perf/util/trace-event.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 
 #include <stdio.h>
 #include <unistd.h>
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 1fbc044f9eb0..dcbdb53dc702 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_UTIL_TRACE_EVENT_H
 #define _PERF_UTIL_TRACE_EVENT_H
 
diff --git a/tools/perf/util/trigger.h b/tools/perf/util/trigger.h
index e97d7016d771..370138e7e35c 100644
--- a/tools/perf/util/trigger.h
+++ b/tools/perf/util/trigger.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TRIGGER_H_
 #define __TRIGGER_H_ 1
 
diff --git a/tools/perf/util/tsc.c b/tools/perf/util/tsc.c
index 1b741646eed0..bfa782421cbd 100644
--- a/tools/perf/util/tsc.c
+++ b/tools/perf/util/tsc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <linux/types.h>
 
diff --git a/tools/perf/util/tsc.h b/tools/perf/util/tsc.h
index d5b11e2b85e0..e0c3af34ac8d 100644
--- a/tools/perf/util/tsc.h
+++ b/tools/perf/util/tsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_TSC_H
 #define __PERF_TSC_H
 
diff --git a/tools/perf/util/units.c b/tools/perf/util/units.c
index 4767ec2c5ef6..a46762aec4c9 100644
--- a/tools/perf/util/units.c
+++ b/tools/perf/util/units.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "units.h"
 #include <inttypes.h>
 #include <limits.h>
diff --git a/tools/perf/util/units.h b/tools/perf/util/units.h
index f02c87317150..99263b6a23f7 100644
--- a/tools/perf/util/units.h
+++ b/tools/perf/util/units.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERF_UNIT_H
 #define PERF_UNIT_H
 
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index 7755a5e0fe5e..1e9c974faf67 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/compiler.h>
 #include <elfutils/libdw.h>
 #include <elfutils/libdwfl.h>
diff --git a/tools/perf/util/unwind-libdw.h b/tools/perf/util/unwind-libdw.h
index 4a2b269a7b3b..0cbd2650e280 100644
--- a/tools/perf/util/unwind-libdw.h
+++ b/tools/perf/util/unwind-libdw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_UNWIND_LIBDW_H
 #define __PERF_UNWIND_LIBDW_H
 
diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index 672c2ada9357..7a42f703e858 100644
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Post mortem Dwarf CFI based unwinding on top of regs and stack dumps.
  *
diff --git a/tools/perf/util/unwind-libunwind.c b/tools/perf/util/unwind-libunwind.c
index 8aef572d0889..647a1e6b4c7b 100644
--- a/tools/perf/util/unwind-libunwind.c
+++ b/tools/perf/util/unwind-libunwind.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "unwind.h"
 #include "thread.h"
 #include "session.h"
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index bfbdcc6198c9..8a44a1569a21 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __UNWIND_H
 #define __UNWIND_H
 
diff --git a/tools/perf/util/usage.c b/tools/perf/util/usage.c
index 6cc9d9888ce0..070d25ceea6a 100644
--- a/tools/perf/util/usage.c
+++ b/tools/perf/util/usage.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * usage.c
  *
diff --git a/tools/perf/util/util-cxx.h b/tools/perf/util/util-cxx.h
index 0e0e019c9f34..80a99e458d4e 100644
--- a/tools/perf/util/util-cxx.h
+++ b/tools/perf/util/util-cxx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Support C++ source use utilities defined in util.h
  */
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 4c360daa4e24..a789f952b3e9 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "../perf.h"
 #include "util.h"
 #include "debug.h"
@@ -6,6 +7,7 @@
 #include <sys/stat.h>
 #include <sys/utsname.h>
 #include <dirent.h>
+#include <fcntl.h>
 #include <inttypes.h>
 #include <signal.h>
 #include <stdio.h>
@@ -22,6 +24,19 @@
 /*
  * XXX We need to find a better place for these things...
  */
+
+bool perf_singlethreaded = true;
+
+void perf_set_singlethreaded(void)
+{
+	perf_singlethreaded = true;
+}
+
+void perf_set_multithreaded(void)
+{
+	perf_singlethreaded = false;
+}
+
 unsigned int page_size;
 int cacheline_size;
 
@@ -174,7 +189,7 @@ out:
 	return err;
 }
 
-int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size)
+static int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size)
 {
 	void *ptr;
 	loff_t pgoff;
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index b136c271125f..01434509c2e9 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef GIT_COMPAT_UTIL_H
 #define GIT_COMPAT_UTIL_H
 
@@ -5,7 +6,6 @@
 /* glibc 2.20 deprecates _BSD_SOURCE in favour of _DEFAULT_SOURCE */
 #define _DEFAULT_SOURCE 1
 
-#include <fcntl.h>
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdlib.h>
@@ -35,7 +35,6 @@ bool lsdir_no_dot_filter(const char *name, struct dirent *d);
 int copyfile(const char *from, const char *to);
 int copyfile_mode(const char *from, const char *to, mode_t mode);
 int copyfile_ns(const char *from, const char *to, struct nsinfo *nsi);
-int copyfile_offset(int fromfd, loff_t from_ofs, int tofd, loff_t to_ofs, u64 size);
 
 ssize_t readn(int fd, void *buf, size_t n);
 ssize_t writen(int fd, const void *buf, size_t n);
@@ -64,4 +63,9 @@ int sched_getcpu(void);
 int setns(int fd, int nstype);
 #endif
 
+extern bool perf_singlethreaded;
+
+void perf_set_singlethreaded(void);
+void perf_set_multithreaded(void);
+
 #endif /* GIT_COMPAT_UTIL_H */
diff --git a/tools/perf/util/values.c b/tools/perf/util/values.c
index 8a32bb0095e5..4b7a303e4ba8 100644
--- a/tools/perf/util/values.c
+++ b/tools/perf/util/values.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/tools/perf/util/values.h b/tools/perf/util/values.h
index 808ff9c73bf5..8c41f22f42cf 100644
--- a/tools/perf/util/values.h
+++ b/tools/perf/util/values.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_VALUES_H
 #define __PERF_VALUES_H
 
diff --git a/tools/perf/util/vdso.c b/tools/perf/util/vdso.c
index d3c39eec89a8..0acb1ec0e2f0 100644
--- a/tools/perf/util/vdso.c
+++ b/tools/perf/util/vdso.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <unistd.h>
 #include <stdio.h>
@@ -319,7 +320,7 @@ struct dso *machine__findnew_vdso(struct machine *machine,
 	struct vdso_info *vdso_info;
 	struct dso *dso = NULL;
 
-	pthread_rwlock_wrlock(&machine->dsos.lock);
+	down_write(&machine->dsos.lock);
 	if (!machine->vdso_info)
 		machine->vdso_info = vdso_info__new();
 
@@ -347,7 +348,7 @@ struct dso *machine__findnew_vdso(struct machine *machine,
 
 out_unlock:
 	dso__get(dso);
-	pthread_rwlock_unlock(&machine->dsos.lock);
+	up_write(&machine->dsos.lock);
 	return dso;
 }
 
diff --git a/tools/perf/util/vdso.h b/tools/perf/util/vdso.h
index cdc4fabfc212..bc74ace603ae 100644
--- a/tools/perf/util/vdso.h
+++ b/tools/perf/util/vdso.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __PERF_VDSO__
 #define __PERF_VDSO__
 
diff --git a/tools/perf/util/xyarray.c b/tools/perf/util/xyarray.c
index c8f415d9877b..dc95154f5646 100644
--- a/tools/perf/util/xyarray.c
+++ b/tools/perf/util/xyarray.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include "xyarray.h"
 #include "util.h"
 #include <stdlib.h>
diff --git a/tools/perf/util/xyarray.h b/tools/perf/util/xyarray.h
index 4ba726c90870..7ffe562e7ae7 100644
--- a/tools/perf/util/xyarray.h
+++ b/tools/perf/util/xyarray.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PERF_XYARRAY_H_
 #define _PERF_XYARRAY_H_ 1
 
@@ -23,12 +24,12 @@ static inline void *xyarray__entry(struct xyarray *xy, int x, int y)
 
 static inline int xyarray__max_y(struct xyarray *xy)
 {
-	return xy->max_x;
+	return xy->max_y;
 }
 
 static inline int xyarray__max_x(struct xyarray *xy)
 {
-	return xy->max_y;
+	return xy->max_x;
 }
 
 #endif /* _PERF_XYARRAY_H_ */
diff --git a/tools/perf/util/zlib.c b/tools/perf/util/zlib.c
index 1329d843eb7b..a725b958cf31 100644
--- a/tools/perf/util/zlib.c
+++ b/tools/perf/util/zlib.c
@@ -1,3 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <fcntl.h>
 #include <stdio.h>
 #include <unistd.h>
 #include <sys/stat.h>
diff --git a/tools/power/acpi/tools/acpidump/Makefile b/tools/power/acpi/tools/acpidump/Makefile
index f7c7af1f9258..b436f8675f6a 100644
--- a/tools/power/acpi/tools/acpidump/Makefile
+++ b/tools/power/acpi/tools/acpidump/Makefile
@@ -39,6 +39,7 @@ TOOL_OBJS = \
 	utnonansi.o\
 	utprint.o\
 	utstring.o\
+	utstrsuppt.o\
 	utstrtoul64.o\
 	utxferror.o\
 	oslinuxtbl.o\
diff --git a/tools/power/acpi/tools/acpidump/apdump.c b/tools/power/acpi/tools/acpidump/apdump.c
index 60df1fbd4a77..0634449156d8 100644
--- a/tools/power/acpi/tools/acpidump/apdump.c
+++ b/tools/power/acpi/tools/acpidump/apdump.c
@@ -287,8 +287,7 @@ int ap_dump_table_by_address(char *ascii_address)
 
 	/* Convert argument to an integer physical address */
 
-	status = acpi_ut_strtoul64(ascii_address, ACPI_STRTOUL_64BIT,
-				   &long_address);
+	status = acpi_ut_strtoul64(ascii_address, &long_address);
 	if (ACPI_FAILURE(status)) {
 		fprintf(stderr, "%s: Could not convert to a physical address\n",
 			ascii_address);
diff --git a/tools/power/acpi/tools/acpidump/apmain.c b/tools/power/acpi/tools/acpidump/apmain.c
index 943b6b614683..22c3b4ee1617 100644
--- a/tools/power/acpi/tools/acpidump/apmain.c
+++ b/tools/power/acpi/tools/acpidump/apmain.c
@@ -208,9 +208,7 @@ static int ap_do_options(int argc, char **argv)
 		case 'r':	/* Dump tables from specified RSDP */
 
 			status =
-			    acpi_ut_strtoul64(acpi_gbl_optarg,
-					      ACPI_STRTOUL_64BIT,
-					      &gbl_rsdp_base);
+			    acpi_ut_strtoul64(acpi_gbl_optarg, &gbl_rsdp_base);
 			if (ACPI_FAILURE(status)) {
 				fprintf(stderr,
 					"%s: Could not convert to a physical address\n",
diff --git a/tools/power/cpupower/.gitignore b/tools/power/cpupower/.gitignore
index d42073f12609..1f9977cc609c 100644
--- a/tools/power/cpupower/.gitignore
+++ b/tools/power/cpupower/.gitignore
@@ -1,7 +1,6 @@
 .libs
 libcpupower.so
-libcpupower.so.0
-libcpupower.so.0.0.0
+libcpupower.so.*
 build/ccdv
 cpufreq-info
 cpufreq-set
diff --git a/tools/power/cpupower/Makefile b/tools/power/cpupower/Makefile
index d6e1c02ddcfe..da205d1fa03c 100644
--- a/tools/power/cpupower/Makefile
+++ b/tools/power/cpupower/Makefile
@@ -30,6 +30,8 @@ OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd)
 $(if $(OUTDIR),, $(error output directory "$(OUTPUT)" does not exist))
 endif
 
+include ../../scripts/Makefile.arch
+
 # --- CONFIGURATION BEGIN ---
 
 # Set the following to `true' to make a unstripped, unoptimized
@@ -79,7 +81,11 @@ bindir ?=	/usr/bin
 sbindir ?=	/usr/sbin
 mandir ?=	/usr/man
 includedir ?=	/usr/include
+ifeq ($(IS_64_BIT), 1)
+libdir ?=	/usr/lib64
+else
 libdir ?=	/usr/lib
+endif
 localedir ?=	/usr/share/locale
 docdir ?=       /usr/share/doc/packages/cpupower
 confdir ?=      /etc/
diff --git a/tools/power/cpupower/bench/Makefile b/tools/power/cpupower/bench/Makefile
index 3e59f1aa3947..d79ab161cc75 100644
--- a/tools/power/cpupower/bench/Makefile
+++ b/tools/power/cpupower/bench/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OUTPUT := ./
 ifeq ("$(origin O)", "command line")
 ifneq ($(O),)
diff --git a/tools/power/cpupower/debug/i386/Makefile b/tools/power/cpupower/debug/i386/Makefile
index c05cc0ac80c7..b3f771039b17 100644
--- a/tools/power/cpupower/debug/i386/Makefile
+++ b/tools/power/cpupower/debug/i386/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OUTPUT=./
 ifeq ("$(origin O)", "command line")
 	OUTPUT := $(O)/
diff --git a/tools/power/cpupower/debug/kernel/Makefile b/tools/power/cpupower/debug/kernel/Makefile
index a8a6f8eec5c2..c23e5a6ceb7e 100644
--- a/tools/power/cpupower/debug/kernel/Makefile
+++ b/tools/power/cpupower/debug/kernel/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 obj-m	:=
 
 KDIR	:= /lib/modules/$(shell uname -r)/build
diff --git a/tools/power/cpupower/debug/x86_64/Makefile b/tools/power/cpupower/debug/x86_64/Makefile
index 1c5214526716..59af84b8ef45 100644
--- a/tools/power/cpupower/debug/x86_64/Makefile
+++ b/tools/power/cpupower/debug/x86_64/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 OUTPUT=./
 ifeq ("$(origin O)", "command line")
 	OUTPUT := $(O)/
diff --git a/tools/power/cpupower/lib/cpuidle.h b/tools/power/cpupower/lib/cpuidle.h
index 04eb3cfa6e42..2e10fead2e1e 100644
--- a/tools/power/cpupower/lib/cpuidle.h
+++ b/tools/power/cpupower/lib/cpuidle.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPUPOWER_CPUIDLE_H__
 #define __CPUPOWER_CPUIDLE_H__
 
diff --git a/tools/power/cpupower/lib/cpupower.h b/tools/power/cpupower/lib/cpupower.h
index fa031fcc7710..e4e4292eacec 100644
--- a/tools/power/cpupower/lib/cpupower.h
+++ b/tools/power/cpupower/lib/cpupower.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPUPOWER_CPUPOWER_H__
 #define __CPUPOWER_CPUPOWER_H__
 
diff --git a/tools/power/cpupower/lib/cpupower_intern.h b/tools/power/cpupower/lib/cpupower_intern.h
index f8ec4009621c..92affdfbe417 100644
--- a/tools/power/cpupower/lib/cpupower_intern.h
+++ b/tools/power/cpupower/lib/cpupower_intern.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define PATH_TO_CPU "/sys/devices/system/cpu/"
 #define MAX_LINE_LEN 4096
 #define SYSFS_PATH_MAX 255
diff --git a/tools/power/cpupower/utils/builtin.h b/tools/power/cpupower/utils/builtin.h
index 2284c8ea4e2a..f7065ae60a14 100644
--- a/tools/power/cpupower/utils/builtin.h
+++ b/tools/power/cpupower/utils/builtin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BUILTIN_H
 #define BUILTIN_H
 
diff --git a/tools/power/cpupower/utils/cpufreq-info.c b/tools/power/cpupower/utils/cpufreq-info.c
index 3e701f0e9c14..df43cd45d810 100644
--- a/tools/power/cpupower/utils/cpufreq-info.c
+++ b/tools/power/cpupower/utils/cpufreq-info.c
@@ -93,8 +93,6 @@ static void print_speed(unsigned long speed)
 		if (speed > 1000000)
 			printf("%u.%06u GHz", ((unsigned int) speed/1000000),
 				((unsigned int) speed%1000000));
-		else if (speed > 100000)
-			printf("%u MHz", (unsigned int) speed);
 		else if (speed > 1000)
 			printf("%u.%03u MHz", ((unsigned int) speed/1000),
 				(unsigned int) (speed%1000));
diff --git a/tools/power/cpupower/utils/cpuidle-set.c b/tools/power/cpupower/utils/cpuidle-set.c
index 691c24d50ef4..569f268f4c7f 100644
--- a/tools/power/cpupower/utils/cpuidle-set.c
+++ b/tools/power/cpupower/utils/cpuidle-set.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <unistd.h>
 #include <stdio.h>
 #include <errno.h>
diff --git a/tools/power/cpupower/utils/helpers/amd.c b/tools/power/cpupower/utils/helpers/amd.c
index 5fd5c5b8c7b8..bb41cdd0df6b 100644
--- a/tools/power/cpupower/utils/helpers/amd.c
+++ b/tools/power/cpupower/utils/helpers/amd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #if defined(__i386__) || defined(__x86_64__)
 #include <unistd.h>
 #include <errno.h>
diff --git a/tools/power/cpupower/utils/helpers/bitmask.c b/tools/power/cpupower/utils/helpers/bitmask.c
index 5c074c60f904..6c7932f5bd66 100644
--- a/tools/power/cpupower/utils/helpers/bitmask.c
+++ b/tools/power/cpupower/utils/helpers/bitmask.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/power/cpupower/utils/helpers/bitmask.h b/tools/power/cpupower/utils/helpers/bitmask.h
index eb289df41053..b98d93a44e1b 100644
--- a/tools/power/cpupower/utils/helpers/bitmask.h
+++ b/tools/power/cpupower/utils/helpers/bitmask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPUPOWER_BITMASK__
 #define __CPUPOWER_BITMASK__
 
diff --git a/tools/power/cpupower/utils/helpers/cpuid.c b/tools/power/cpupower/utils/helpers/cpuid.c
index 32d37c9be791..732b0b41ba26 100644
--- a/tools/power/cpupower/utils/helpers/cpuid.c
+++ b/tools/power/cpupower/utils/helpers/cpuid.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <errno.h>
 #include <string.h>
diff --git a/tools/power/cpupower/utils/helpers/misc.c b/tools/power/cpupower/utils/helpers/misc.c
index a5e7ddf19dbd..80fdf55f414d 100644
--- a/tools/power/cpupower/utils/helpers/misc.c
+++ b/tools/power/cpupower/utils/helpers/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #if defined(__i386__) || defined(__x86_64__)
 
 #include "helpers/helpers.h"
diff --git a/tools/power/cpupower/utils/helpers/msr.c b/tools/power/cpupower/utils/helpers/msr.c
index 31a4b24a8bc6..ab9950748838 100644
--- a/tools/power/cpupower/utils/helpers/msr.c
+++ b/tools/power/cpupower/utils/helpers/msr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #if defined(__i386__) || defined(__x86_64__)
 
 #include <fcntl.h>
diff --git a/tools/power/cpupower/utils/helpers/pci.c b/tools/power/cpupower/utils/helpers/pci.c
index 8b278983cfc5..113f3da2a203 100644
--- a/tools/power/cpupower/utils/helpers/pci.c
+++ b/tools/power/cpupower/utils/helpers/pci.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #if defined(__i386__) || defined(__x86_64__)
 
 #include <helpers/helpers.h>
diff --git a/tools/power/cpupower/utils/helpers/sysfs.h b/tools/power/cpupower/utils/helpers/sysfs.h
index d28f11fedbda..0f0b9ad97e4a 100644
--- a/tools/power/cpupower/utils/helpers/sysfs.h
+++ b/tools/power/cpupower/utils/helpers/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __CPUPOWER_HELPERS_SYSFS_H__
 #define __CPUPOWER_HELPERS_SYSFS_H__
 
diff --git a/tools/power/cpupower/utils/version-gen.sh b/tools/power/cpupower/utils/version-gen.sh
index 5ec41c556992..c70de2eabffb 100755
--- a/tools/power/cpupower/utils/version-gen.sh
+++ b/tools/power/cpupower/utils/version-gen.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # Script which prints out the version to use for building cpupowerutils.
 # Must be called from tools/power/cpupower/
diff --git a/tools/power/pm-graph/Makefile b/tools/power/pm-graph/Makefile
index 32f40eacdafe..4e1e999e7b05 100644
--- a/tools/power/pm-graph/Makefile
+++ b/tools/power/pm-graph/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 PREFIX		?= /usr
 DESTDIR		?=
 
diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile
index 8792ad8dbf83..a9bc914a8fe8 100644
--- a/tools/power/x86/turbostat/Makefile
+++ b/tools/power/x86/turbostat/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC		= $(CROSS_COMPILE)gcc
 BUILD_OUTPUT	:= $(CURDIR)
 PREFIX		?= /usr
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 0dafba2c1e7d..bd9c6b31a504 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -92,7 +92,6 @@ unsigned int do_ring_perf_limit_reasons;
 unsigned int crystal_hz;
 unsigned long long tsc_hz;
 int base_cpu;
-int do_migrate;
 double discover_bclk(unsigned int family, unsigned int model);
 unsigned int has_hwp;	/* IA32_PM_ENABLE, IA32_HWP_CAPABILITIES */
 			/* IA32_HWP_REQUEST, IA32_HWP_STATUS */
@@ -303,9 +302,6 @@ int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg
 
 int cpu_migrate(int cpu)
 {
-	if (!do_migrate)
-		return 0;
-
 	CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
 	CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
 	if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
@@ -5007,7 +5003,6 @@ void cmdline(int argc, char **argv)
 		{"hide",	required_argument,	0, 'H'},	// meh, -h taken by --help
 		{"Joules",	no_argument,		0, 'J'},
 		{"list",	no_argument,		0, 'l'},
-		{"migrate",	no_argument,		0, 'm'},
 		{"out",		required_argument,	0, 'o'},
 		{"quiet",	no_argument,		0, 'q'},
 		{"show",	required_argument,	0, 's'},
@@ -5019,7 +5014,7 @@ void cmdline(int argc, char **argv)
 
 	progname = argv[0];
 
-	while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:Jmo:qST:v",
+	while ((opt = getopt_long_only(argc, argv, "+C:c:Ddhi:JM:m:o:qST:v",
 				long_options, &option_index)) != -1) {
 		switch (opt) {
 		case 'a':
@@ -5062,9 +5057,6 @@ void cmdline(int argc, char **argv)
 			list_header_only++;
 			quiet++;
 			break;
-		case 'm':
-			do_migrate = 1;
-			break;
 		case 'o':
 			outf = fopen_or_die(optarg, "w");
 			break;
diff --git a/tools/power/x86/x86_energy_perf_policy/Makefile b/tools/power/x86/x86_energy_perf_policy/Makefile
index a711eec0c895..2447b1bbaacf 100644
--- a/tools/power/x86/x86_energy_perf_policy/Makefile
+++ b/tools/power/x86/x86_energy_perf_policy/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC		= $(CROSS_COMPILE)gcc
 BUILD_OUTPUT    := $(CURDIR)
 PREFIX		:= /usr
diff --git a/tools/scripts/Makefile.arch b/tools/scripts/Makefile.arch
index ad85b921a607..78d90a249e88 100644
--- a/tools/scripts/Makefile.arch
+++ b/tools/scripts/Makefile.arch
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 HOSTARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
                                   -e s/sun4u/sparc/ -e s/sparc64/sparc/ \
                                   -e /arm64/!s/arm.*/arm/ -e s/sa110/arm/ \
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 1e8b6116ba3c..654efd9768fd 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifneq ($(O),)
 ifeq ($(origin O), command line)
 	dummy := $(if $(shell test -d $(O) || echo $(O)),$(error O=$(O) does not exist),)
diff --git a/tools/spi/spidev_fdx.c b/tools/spi/spidev_fdx.c
index 0ea3e51292fc..7d2a867cd4ae 100644
--- a/tools/spi/spidev_fdx.c
+++ b/tools/spi/spidev_fdx.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
diff --git a/tools/testing/fault-injection/failcmd.sh b/tools/testing/fault-injection/failcmd.sh
index 78a9ed7fecdb..29a6c63c5a15 100644
--- a/tools/testing/fault-injection/failcmd.sh
+++ b/tools/testing/fault-injection/failcmd.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # NAME
 #	failcmd.sh - run a command with injecting slab/page allocation failures
diff --git a/tools/testing/ktest/compare-ktest-sample.pl b/tools/testing/ktest/compare-ktest-sample.pl
index a373a5bfff68..4118eb4a842d 100755
--- a/tools/testing/ktest/compare-ktest-sample.pl
+++ b/tools/testing/ktest/compare-ktest-sample.pl
@@ -1,4 +1,5 @@
 #!/usr/bin/perl
+# SPDX-License-Identifier: GPL-2.0
 
 open (IN,"ktest.pl");
 while (<IN>) {
diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild
index d870520da68b..65368d9027f5 100644
--- a/tools/testing/nvdimm/Kbuild
+++ b/tools/testing/nvdimm/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ldflags-y += --wrap=ioremap_wc
 ldflags-y += --wrap=memremap
 ldflags-y += --wrap=devm_ioremap_nocache
diff --git a/tools/testing/nvdimm/Makefile b/tools/testing/nvdimm/Makefile
index 3dfe024b4e7e..c37a6a0bde28 100644
--- a/tools/testing/nvdimm/Makefile
+++ b/tools/testing/nvdimm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 KDIR ?= ../../../
 
 default:
diff --git a/tools/testing/nvdimm/config_check.c b/tools/testing/nvdimm/config_check.c
index 7dc5a0af9b54..cac891028cd1 100644
--- a/tools/testing/nvdimm/config_check.c
+++ b/tools/testing/nvdimm/config_check.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <linux/bug.h>
 
 void check(void)
diff --git a/tools/testing/nvdimm/test/Kbuild b/tools/testing/nvdimm/test/Kbuild
index d32f25bba42a..fb3c3d7cdb9b 100644
--- a/tools/testing/nvdimm/test/Kbuild
+++ b/tools/testing/nvdimm/test/Kbuild
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ccflags-y := -I$(src)/../../../../drivers/nvdimm/
 ccflags-y += -I$(src)/../../../../drivers/acpi/nfit/
 
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c
index d20791c3f499..bef419d4266d 100644
--- a/tools/testing/nvdimm/test/nfit.c
+++ b/tools/testing/nvdimm/test/nfit.c
@@ -1527,9 +1527,6 @@ static void nfit_test1_setup(struct nfit_test *t)
 	set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en);
 	set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en);
 	set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en);
-	set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_cmd_force_en);
-	set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);
-	set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);
 }
 
 static int nfit_test_blk_do_io(struct nd_blk_region *ndbr, resource_size_t dpa,
diff --git a/tools/testing/radix-tree/Makefile b/tools/testing/radix-tree/Makefile
index 6a9480c03cbd..fa7ee369b3c9 100644
--- a/tools/testing/radix-tree/Makefile
+++ b/tools/testing/radix-tree/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 CFLAGS += -I. -I../../include -g -O2 -Wall -D_LGPL_SOURCE -fsanitize=address
 LDFLAGS += -fsanitize=address
diff --git a/tools/testing/radix-tree/linux.c b/tools/testing/radix-tree/linux.c
index cf48c8473f48..6903ccf35595 100644
--- a/tools/testing/radix-tree/linux.c
+++ b/tools/testing/radix-tree/linux.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <string.h>
 #include <malloc.h>
diff --git a/tools/testing/radix-tree/linux/gfp.h b/tools/testing/radix-tree/linux/gfp.h
index 39a0dcb9475a..e9fff59dfd8a 100644
--- a/tools/testing/radix-tree/linux/gfp.h
+++ b/tools/testing/radix-tree/linux/gfp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _GFP_H
 #define _GFP_H
 
diff --git a/tools/testing/radix-tree/linux/kernel.h b/tools/testing/radix-tree/linux/kernel.h
index b21a77fddcf7..c3bc3f364f68 100644
--- a/tools/testing/radix-tree/linux/kernel.h
+++ b/tools/testing/radix-tree/linux/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _KERNEL_H
 #define _KERNEL_H
 
diff --git a/tools/testing/radix-tree/linux/percpu.h b/tools/testing/radix-tree/linux/percpu.h
index 3ea01a1a88c2..b2403aa743b2 100644
--- a/tools/testing/radix-tree/linux/percpu.h
+++ b/tools/testing/radix-tree/linux/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define DECLARE_PER_CPU(type, val) extern type val
 #define DEFINE_PER_CPU(type, val) type val
 
diff --git a/tools/testing/radix-tree/linux/preempt.h b/tools/testing/radix-tree/linux/preempt.h
index 35c5ac81529f..edb10302b903 100644
--- a/tools/testing/radix-tree/linux/preempt.h
+++ b/tools/testing/radix-tree/linux/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __LINUX_PREEMPT_H
 #define __LINUX_PREEMPT_H
 
diff --git a/tools/testing/radix-tree/linux/radix-tree.h b/tools/testing/radix-tree/linux/radix-tree.h
index bf1bb231f9b5..24f13d27a8da 100644
--- a/tools/testing/radix-tree/linux/radix-tree.h
+++ b/tools/testing/radix-tree/linux/radix-tree.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _TEST_RADIX_TREE_H
 #define _TEST_RADIX_TREE_H
 
diff --git a/tools/testing/radix-tree/linux/rcupdate.h b/tools/testing/radix-tree/linux/rcupdate.h
index f7129ea2a899..73ed33658203 100644
--- a/tools/testing/radix-tree/linux/rcupdate.h
+++ b/tools/testing/radix-tree/linux/rcupdate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _RCUPDATE_H
 #define _RCUPDATE_H
 
diff --git a/tools/testing/radix-tree/linux/slab.h b/tools/testing/radix-tree/linux/slab.h
index e40337f41a38..979baeec7e70 100644
--- a/tools/testing/radix-tree/linux/slab.h
+++ b/tools/testing/radix-tree/linux/slab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SLAB_H
 #define SLAB_H
 
diff --git a/tools/testing/radix-tree/main.c b/tools/testing/radix-tree/main.c
index bc9a78449572..257f3f8aacaa 100644
--- a/tools/testing/radix-tree/main.c
+++ b/tools/testing/radix-tree/main.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
diff --git a/tools/testing/radix-tree/regression.h b/tools/testing/radix-tree/regression.h
index e018c4816688..3c8a1584e9ee 100644
--- a/tools/testing/radix-tree/regression.h
+++ b/tools/testing/radix-tree/regression.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __REGRESSION_H__
 #define __REGRESSION_H__
 
diff --git a/tools/testing/radix-tree/regression1.c b/tools/testing/radix-tree/regression1.c
index bf97742fc18c..0aece092f40e 100644
--- a/tools/testing/radix-tree/regression1.c
+++ b/tools/testing/radix-tree/regression1.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Regression1
  * Description:
diff --git a/tools/testing/radix-tree/regression2.c b/tools/testing/radix-tree/regression2.c
index 42dd2a33ed24..424b91c77831 100644
--- a/tools/testing/radix-tree/regression2.c
+++ b/tools/testing/radix-tree/regression2.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Regression2
  * Description:
diff --git a/tools/testing/radix-tree/regression3.c b/tools/testing/radix-tree/regression3.c
index 670c3d2ae7b1..ace2543c3eda 100644
--- a/tools/testing/radix-tree/regression3.c
+++ b/tools/testing/radix-tree/regression3.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Regression3
  * Description:
diff --git a/tools/testing/radix-tree/tag_check.c b/tools/testing/radix-tree/tag_check.c
index 36dcf7d6945d..543181e4847b 100644
--- a/tools/testing/radix-tree/tag_check.c
+++ b/tools/testing/radix-tree/tag_check.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <assert.h>
 #include <stdio.h>
diff --git a/tools/testing/radix-tree/test.c b/tools/testing/radix-tree/test.c
index 1a257d738a1e..5978ab1f403d 100644
--- a/tools/testing/radix-tree/test.c
+++ b/tools/testing/radix-tree/test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <assert.h>
 #include <stdio.h>
diff --git a/tools/testing/radix-tree/test.h b/tools/testing/radix-tree/test.h
index 0f8220cc6166..d9c031dbeb1a 100644
--- a/tools/testing/radix-tree/test.h
+++ b/tools/testing/radix-tree/test.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/gfp.h>
 #include <linux/types.h>
 #include <linux/radix-tree.h>
diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
index 26ce4f7168be..3c9c0bbe7dbb 100644
--- a/tools/testing/selftests/Makefile
+++ b/tools/testing/selftests/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TARGETS =  bpf
 TARGETS += breakpoints
 TARGETS += capabilities
@@ -52,6 +53,10 @@ override LDFLAGS =
 override MAKEFLAGS =
 endif
 
+ifneq ($(KBUILD_SRC),)
+override LDFLAGS =
+endif
+
 BUILD := $(O)
 ifndef BUILD
   BUILD := $(KBUILD_OUTPUT)
@@ -62,32 +67,32 @@ endif
 
 export BUILD
 all:
-	for TARGET in $(TARGETS); do		\
+	@for TARGET in $(TARGETS); do		\
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET;\
 	done;
 
 run_tests: all
-	for TARGET in $(TARGETS); do \
+	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET run_tests;\
 	done;
 
 hotplug:
-	for TARGET in $(TARGETS_HOTPLUG); do \
+	@for TARGET in $(TARGETS_HOTPLUG); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET;\
 	done;
 
 run_hotplug: hotplug
-	for TARGET in $(TARGETS_HOTPLUG); do \
+	@for TARGET in $(TARGETS_HOTPLUG); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET run_full_test;\
 	done;
 
 clean_hotplug:
-	for TARGET in $(TARGETS_HOTPLUG); do \
+	@for TARGET in $(TARGETS_HOTPLUG); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
 	done;
@@ -103,7 +108,7 @@ install:
 ifdef INSTALL_PATH
 	@# Ask all targets to install their files
 	mkdir -p $(INSTALL_PATH)
-	for TARGET in $(TARGETS); do \
+	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET INSTALL_PATH=$(INSTALL_PATH)/$$TARGET install; \
 	done;
@@ -128,7 +133,7 @@ else
 endif
 
 clean:
-	for TARGET in $(TARGETS); do \
+	@for TARGET in $(TARGETS); do \
 		BUILD_TARGET=$$BUILD/$$TARGET;	\
 		make OUTPUT=$$BUILD_TARGET -C $$TARGET clean;\
 	done;
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile
index f4b23d697448..eab7644a07b4 100644
--- a/tools/testing/selftests/bpf/Makefile
+++ b/tools/testing/selftests/bpf/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 LIBDIR := ../../../lib
 BPFDIR := $(LIBDIR)/bpf
 APIDIR := ../../../include/uapi
diff --git a/tools/testing/selftests/bpf/bpf_endian.h b/tools/testing/selftests/bpf/bpf_endian.h
index 74af266aa512..b25595ea4a78 100644
--- a/tools/testing/selftests/bpf/bpf_endian.h
+++ b/tools/testing/selftests/bpf/bpf_endian.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BPF_ENDIAN__
 #define __BPF_ENDIAN__
 
diff --git a/tools/testing/selftests/bpf/bpf_helpers.h b/tools/testing/selftests/bpf/bpf_helpers.h
index 36fb9161b34a..50353c10573c 100644
--- a/tools/testing/selftests/bpf/bpf_helpers.h
+++ b/tools/testing/selftests/bpf/bpf_helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BPF_HELPERS_H
 #define __BPF_HELPERS_H
 
@@ -65,7 +66,7 @@ static int (*bpf_xdp_adjust_head)(void *ctx, int offset) =
 static int (*bpf_setsockopt)(void *ctx, int level, int optname, void *optval,
 			     int optlen) =
 	(void *) BPF_FUNC_setsockopt;
-static int (*bpf_sk_redirect_map)(void *map, int key, int flags) =
+static int (*bpf_sk_redirect_map)(void *ctx, void *map, int key, int flags) =
 	(void *) BPF_FUNC_sk_redirect_map;
 static int (*bpf_sock_map_update)(void *map, void *key, void *value,
 				  unsigned long long flags) =
diff --git a/tools/testing/selftests/bpf/bpf_util.h b/tools/testing/selftests/bpf/bpf_util.h
index 20ecbaa0d85d..d0811b3d6a6f 100644
--- a/tools/testing/selftests/bpf/bpf_util.h
+++ b/tools/testing/selftests/bpf/bpf_util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __BPF_UTIL__
 #define __BPF_UTIL__
 
@@ -12,6 +13,7 @@ static inline unsigned int bpf_num_possible_cpus(void)
 	unsigned int start, end, possible_cpus = 0;
 	char buff[128];
 	FILE *fp;
+	int n;
 
 	fp = fopen(fcpu, "r");
 	if (!fp) {
@@ -20,17 +22,17 @@ static inline unsigned int bpf_num_possible_cpus(void)
 	}
 
 	while (fgets(buff, sizeof(buff), fp)) {
-		if (sscanf(buff, "%u-%u", &start, &end) == 2) {
-			possible_cpus = start == 0 ? end + 1 : 0;
-			break;
+		n = sscanf(buff, "%u-%u", &start, &end);
+		if (n == 0) {
+			printf("Failed to retrieve # possible CPUs!\n");
+			exit(1);
+		} else if (n == 1) {
+			end = start;
 		}
+		possible_cpus = start == 0 ? end + 1 : 0;
+		break;
 	}
-
 	fclose(fp);
-	if (!possible_cpus) {
-		printf("Failed to retrieve # possible CPUs!\n");
-		exit(1);
-	}
 
 	return possible_cpus;
 }
diff --git a/tools/testing/selftests/bpf/include/uapi/linux/types.h b/tools/testing/selftests/bpf/include/uapi/linux/types.h
index 51841848fbfe..91fa51a9c31d 100644
--- a/tools/testing/selftests/bpf/include/uapi/linux/types.h
+++ b/tools/testing/selftests/bpf/include/uapi/linux/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _UAPI_LINUX_TYPES_H
 #define _UAPI_LINUX_TYPES_H
 
diff --git a/tools/testing/selftests/bpf/sockmap_verdict_prog.c b/tools/testing/selftests/bpf/sockmap_verdict_prog.c
index 9b99bd10807d..2cd2d552938b 100644
--- a/tools/testing/selftests/bpf/sockmap_verdict_prog.c
+++ b/tools/testing/selftests/bpf/sockmap_verdict_prog.c
@@ -61,8 +61,8 @@ int bpf_prog2(struct __sk_buff *skb)
 	bpf_printk("verdict: data[0] = redir(%u:%u)\n", map, sk);
 
 	if (!map)
-		return bpf_sk_redirect_map(&sock_map_rx, sk, 0);
-	return bpf_sk_redirect_map(&sock_map_tx, sk, 0);
+		return bpf_sk_redirect_map(skb, &sock_map_rx, sk, 0);
+	return bpf_sk_redirect_map(skb, &sock_map_tx, sk, 0);
 }
 
 char _license[] SEC("license") = "GPL";
diff --git a/tools/testing/selftests/bpf/test_kmod.sh b/tools/testing/selftests/bpf/test_kmod.sh
index 6d58cca8e235..ed4774d8d6ed 100755
--- a/tools/testing/selftests/bpf/test_kmod.sh
+++ b/tools/testing/selftests/bpf/test_kmod.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 SRC_TREE=../../../../
 
diff --git a/tools/testing/selftests/bpf/test_lpm_map.c b/tools/testing/selftests/bpf/test_lpm_map.c
index e97565243d59..f93a333cbf2c 100644
--- a/tools/testing/selftests/bpf/test_lpm_map.c
+++ b/tools/testing/selftests/bpf/test_lpm_map.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Randomized tests for eBPF longest-prefix-match maps
  *
diff --git a/tools/testing/selftests/bpf/test_maps.c b/tools/testing/selftests/bpf/test_maps.c
index fe3a443a1102..50ce52d2013d 100644
--- a/tools/testing/selftests/bpf/test_maps.c
+++ b/tools/testing/selftests/bpf/test_maps.c
@@ -466,7 +466,7 @@ static void test_sockmap(int tasks, void *data)
 	int one = 1, map_fd_rx, map_fd_tx, map_fd_break, s, sc, rc;
 	struct bpf_map *bpf_map_rx, *bpf_map_tx, *bpf_map_break;
 	int ports[] = {50200, 50201, 50202, 50204};
-	int err, i, fd, sfd[6] = {0xdeadbeef};
+	int err, i, fd, udp, sfd[6] = {0xdeadbeef};
 	u8 buf[20] = {0x0, 0x5, 0x3, 0x2, 0x1, 0x0};
 	int parse_prog, verdict_prog;
 	struct sockaddr_in addr;
@@ -548,6 +548,16 @@ static void test_sockmap(int tasks, void *data)
 		goto out_sockmap;
 	}
 
+	/* Test update with unsupported UDP socket */
+	udp = socket(AF_INET, SOCK_DGRAM, 0);
+	i = 0;
+	err = bpf_map_update_elem(fd, &i, &udp, BPF_ANY);
+	if (!err) {
+		printf("Failed socket SOCK_DGRAM allowed '%i:%i'\n",
+		       i, udp);
+		goto out_sockmap;
+	}
+
 	/* Test update without programs */
 	for (i = 0; i < 6; i++) {
 		err = bpf_map_update_elem(fd, &i, &sfd[i], BPF_ANY);
diff --git a/tools/testing/selftests/bpf/test_tag.c b/tools/testing/selftests/bpf/test_tag.c
index de409fc50c35..8b201895c569 100644
--- a/tools/testing/selftests/bpf/test_tag.c
+++ b/tools/testing/selftests/bpf/test_tag.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
diff --git a/tools/testing/selftests/bpf/test_verifier.c b/tools/testing/selftests/bpf/test_verifier.c
index 8eb09950258b..64ae21f64489 100644
--- a/tools/testing/selftests/bpf/test_verifier.c
+++ b/tools/testing/selftests/bpf/test_verifier.c
@@ -1130,15 +1130,27 @@ static struct bpf_test tests[] = {
 		.errstr = "invalid bpf_context access",
 	},
 	{
-		"check skb->mark is writeable by SK_SKB",
+		"invalid access of skb->mark for SK_SKB",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+				    offsetof(struct __sk_buff, mark)),
+			BPF_EXIT_INSN(),
+		},
+		.result =  REJECT,
+		.prog_type = BPF_PROG_TYPE_SK_SKB,
+		.errstr = "invalid bpf_context access",
+	},
+	{
+		"check skb->mark is not writeable by SK_SKB",
 		.insns = {
 			BPF_MOV64_IMM(BPF_REG_0, 0),
 			BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0,
 				    offsetof(struct __sk_buff, mark)),
 			BPF_EXIT_INSN(),
 		},
-		.result = ACCEPT,
+		.result =  REJECT,
 		.prog_type = BPF_PROG_TYPE_SK_SKB,
+		.errstr = "invalid bpf_context access",
 	},
 	{
 		"check skb->tc_index is writeable by SK_SKB",
@@ -6629,6 +6641,516 @@ static struct bpf_test tests[] = {
 		.result = REJECT,
 		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
 	},
+	{
+		"invalid 64-bit BPF_END",
+		.insns = {
+			BPF_MOV32_IMM(BPF_REG_0, 0),
+			{
+				.code  = BPF_ALU64 | BPF_END | BPF_TO_LE,
+				.dst_reg = BPF_REG_0,
+				.src_reg = 0,
+				.off   = 0,
+				.imm   = 32,
+			},
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "BPF_END uses reserved fields",
+		.result = REJECT,
+	},
+	{
+		"arithmetic ops make PTR_TO_CTX unusable",
+		.insns = {
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1,
+				      offsetof(struct __sk_buff, data) -
+				      offsetof(struct __sk_buff, mark)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1,
+				    offsetof(struct __sk_buff, mark)),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "dereference of modified ctx ptr R1 off=68+8, ctx+const is allowed, ctx+const+const is not",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_SCHED_CLS,
+	},
+	{
+		"XDP pkt read, pkt_end mangling, bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end mangling, bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_ALU64_IMM(BPF_SUB, BPF_REG_3, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' > pkt_end, good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' > pkt_end, bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_data' > pkt_end, bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 0),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end > pkt_data', good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_end > pkt_data', bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end > pkt_data', bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_1, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' < pkt_end, good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_data' < pkt_end, bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' < pkt_end, bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLT, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end < pkt_data', good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end < pkt_data', bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_end < pkt_data', bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLT, BPF_REG_3, BPF_REG_1, 0),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' >= pkt_end, good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_data' >= pkt_end, bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' >= pkt_end, bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_1, BPF_REG_3, 0),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_end >= pkt_data', good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end >= pkt_data', bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_end >= pkt_data', bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_1, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' <= pkt_end, good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_data' <= pkt_end, bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+			BPF_JMP_IMM(BPF_JA, 0, 0, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -4),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_data' <= pkt_end, bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLE, BPF_REG_1, BPF_REG_3, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end <= pkt_data', good access",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.result = ACCEPT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
+	{
+		"XDP pkt read, pkt_end <= pkt_data', bad access 1",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 1),
+			BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, -8),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+	},
+	{
+		"XDP pkt read, pkt_end <= pkt_data', bad access 2",
+		.insns = {
+			BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1,
+				    offsetof(struct xdp_md, data)),
+			BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1,
+				    offsetof(struct xdp_md, data_end)),
+			BPF_MOV64_REG(BPF_REG_1, BPF_REG_2),
+			BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8),
+			BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_1, 0),
+			BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -5),
+			BPF_MOV64_IMM(BPF_REG_0, 0),
+			BPF_EXIT_INSN(),
+		},
+		.errstr = "R1 offset is outside of the packet",
+		.result = REJECT,
+		.prog_type = BPF_PROG_TYPE_XDP,
+		.flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS,
+	},
 };
 
 static int probe_filter_length(const struct bpf_insn *fp)
diff --git a/tools/testing/selftests/breakpoints/Makefile b/tools/testing/selftests/breakpoints/Makefile
index 6b214b7b10fb..9ec2c78de8ca 100644
--- a/tools/testing/selftests/breakpoints/Makefile
+++ b/tools/testing/selftests/breakpoints/Makefile
@@ -1,15 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
 # Taken from perf makefile
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
 
+TEST_GEN_PROGS := step_after_suspend_test
+
 ifeq ($(ARCH),x86)
-TEST_GEN_PROGS := breakpoint_test
+TEST_GEN_PROGS += breakpoint_test
 endif
 ifneq (,$(filter $(ARCH),aarch64 arm64))
-TEST_GEN_PROGS := breakpoint_test_arm64
+TEST_GEN_PROGS += breakpoint_test_arm64
 endif
 
-TEST_GEN_PROGS += step_after_suspend_test
-
 include ../lib.mk
 
diff --git a/tools/testing/selftests/capabilities/Makefile b/tools/testing/selftests/capabilities/Makefile
index 29b8adfdac71..6e9d98d457d5 100644
--- a/tools/testing/selftests/capabilities/Makefile
+++ b/tools/testing/selftests/capabilities/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_GEN_FILES := validate_cap
 TEST_GEN_PROGS := test_execve
 
diff --git a/tools/testing/selftests/capabilities/test_execve.c b/tools/testing/selftests/capabilities/test_execve.c
index cf6778441381..3ab39a61b95b 100644
--- a/tools/testing/selftests/capabilities/test_execve.c
+++ b/tools/testing/selftests/capabilities/test_execve.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 
 #include <cap-ng.h>
diff --git a/tools/testing/selftests/capabilities/validate_cap.c b/tools/testing/selftests/capabilities/validate_cap.c
index 694cd73d4493..cdfc94268fe6 100644
--- a/tools/testing/selftests/capabilities/validate_cap.c
+++ b/tools/testing/selftests/capabilities/validate_cap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <cap-ng.h>
 #include <linux/capability.h>
 #include <stdbool.h>
diff --git a/tools/testing/selftests/cpu-hotplug/Makefile b/tools/testing/selftests/cpu-hotplug/Makefile
index fe1f99101c5d..d8be047ee5b6 100644
--- a/tools/testing/selftests/cpu-hotplug/Makefile
+++ b/tools/testing/selftests/cpu-hotplug/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 TEST_PROGS := cpu-on-off-test.sh
diff --git a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
index b18b253d7bfb..f3a8933c1275 100755
--- a/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
+++ b/tools/testing/selftests/cpu-hotplug/cpu-on-off-test.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 SYSFS=
 
diff --git a/tools/testing/selftests/cpufreq/Makefile b/tools/testing/selftests/cpufreq/Makefile
index 3955cd96f3a2..c86ca8342222 100644
--- a/tools/testing/selftests/cpufreq/Makefile
+++ b/tools/testing/selftests/cpufreq/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 TEST_PROGS := main.sh
diff --git a/tools/testing/selftests/cpufreq/cpu.sh b/tools/testing/selftests/cpufreq/cpu.sh
index 8e08a83d65f2..39fdcdfb8e97 100755
--- a/tools/testing/selftests/cpufreq/cpu.sh
+++ b/tools/testing/selftests/cpufreq/cpu.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # CPU helpers
 
diff --git a/tools/testing/selftests/cpufreq/cpufreq.sh b/tools/testing/selftests/cpufreq/cpufreq.sh
index 1ed3832030b4..b583a2fb4504 100755
--- a/tools/testing/selftests/cpufreq/cpufreq.sh
+++ b/tools/testing/selftests/cpufreq/cpufreq.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 # protect against multiple inclusion
 if [ $FILE_CPUFREQ ]; then
diff --git a/tools/testing/selftests/cpufreq/governor.sh b/tools/testing/selftests/cpufreq/governor.sh
index def645103555..fe37df79c087 100755
--- a/tools/testing/selftests/cpufreq/governor.sh
+++ b/tools/testing/selftests/cpufreq/governor.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Test governors
 
diff --git a/tools/testing/selftests/cpufreq/main.sh b/tools/testing/selftests/cpufreq/main.sh
index 01bac76ac0ec..d83922de9d89 100755
--- a/tools/testing/selftests/cpufreq/main.sh
+++ b/tools/testing/selftests/cpufreq/main.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 source cpu.sh
 source cpufreq.sh
diff --git a/tools/testing/selftests/cpufreq/module.sh b/tools/testing/selftests/cpufreq/module.sh
index 8ff2244a33a1..22563cd122e7 100755
--- a/tools/testing/selftests/cpufreq/module.sh
+++ b/tools/testing/selftests/cpufreq/module.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Modules specific tests cases
 
diff --git a/tools/testing/selftests/cpufreq/special-tests.sh b/tools/testing/selftests/cpufreq/special-tests.sh
index 58b730f23ef7..8d40505dc468 100755
--- a/tools/testing/selftests/cpufreq/special-tests.sh
+++ b/tools/testing/selftests/cpufreq/special-tests.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # Special test cases reported by people
 
diff --git a/tools/testing/selftests/drivers/gpu/drm_mm.sh b/tools/testing/selftests/drivers/gpu/drm_mm.sh
index 96dd55c92799..b789dc8257e6 100755
--- a/tools/testing/selftests/drivers/gpu/drm_mm.sh
+++ b/tools/testing/selftests/drivers/gpu/drm_mm.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs API tests for struct drm_mm (DRM range manager)
 
 if ! /sbin/modprobe -n -q test-drm_mm; then
diff --git a/tools/testing/selftests/drivers/gpu/i915.sh b/tools/testing/selftests/drivers/gpu/i915.sh
index c06d6e8a8dcc..d3895bc714b7 100755
--- a/tools/testing/selftests/drivers/gpu/i915.sh
+++ b/tools/testing/selftests/drivers/gpu/i915.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs hardware independent tests for i915 (drivers/gpu/drm/i915)
 
 if ! /sbin/modprobe -q -r i915; then
diff --git a/tools/testing/selftests/efivarfs/create-read.c b/tools/testing/selftests/efivarfs/create-read.c
index 7feef1880968..9674a19396a3 100644
--- a/tools/testing/selftests/efivarfs/create-read.c
+++ b/tools/testing/selftests/efivarfs/create-read.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdint.h>
 #include <stdlib.h>
diff --git a/tools/testing/selftests/efivarfs/efivarfs.sh b/tools/testing/selftests/efivarfs/efivarfs.sh
index 057278448515..c6d5790575ae 100755
--- a/tools/testing/selftests/efivarfs/efivarfs.sh
+++ b/tools/testing/selftests/efivarfs/efivarfs.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 efivarfs_mount=/sys/firmware/efi/efivars
 test_guid=210be57c-9849-4fc7-a635-e6382d1aec27
diff --git a/tools/testing/selftests/efivarfs/open-unlink.c b/tools/testing/selftests/efivarfs/open-unlink.c
index 4af74f733036..562742d44ac9 100644
--- a/tools/testing/selftests/efivarfs/open-unlink.c
+++ b/tools/testing/selftests/efivarfs/open-unlink.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <errno.h>
 #include <stdio.h>
 #include <stdint.h>
diff --git a/tools/testing/selftests/exec/Makefile b/tools/testing/selftests/exec/Makefile
index 2e13035dff7f..427c41ba5151 100644
--- a/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS = -Wall
 
 TEST_GEN_PROGS := execveat
diff --git a/tools/testing/selftests/filesystems/Makefile b/tools/testing/selftests/filesystems/Makefile
index 0ab11307b414..13a73bf725b5 100644
--- a/tools/testing/selftests/filesystems/Makefile
+++ b/tools/testing/selftests/filesystems/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := dnotify_test
 all: $(TEST_PROGS)
 
diff --git a/tools/testing/selftests/filesystems/dnotify_test.c b/tools/testing/selftests/filesystems/dnotify_test.c
index 8b37b4a1e18d..c0a9b2d3302d 100644
--- a/tools/testing/selftests/filesystems/dnotify_test.c
+++ b/tools/testing/selftests/filesystems/dnotify_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE	/* needed to get the defines */
 #include <fcntl.h>	/* in glibc 2.2 this has the needed
 				   values defined */
diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index 8f511035f783..a52a3bab532b 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # This validates that the kernel will fall back to using the fallback mechanism
 # to load firmware it can't find on disk itself. We must request a firmware
 # that the kernel won't find, and any installed helper (e.g. udev) also
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 7d8fd2e3695a..62f2d6f54929 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # This validates that the kernel will load firmware out of its list of
 # firmware locations on disk. Since the user helper does similar work,
 # we reset the custom load directory to a location the user helper doesn't
diff --git a/tools/testing/selftests/ftrace/Makefile b/tools/testing/selftests/ftrace/Makefile
index a8a5e21850e7..cd1f5b3a7774 100644
--- a/tools/testing/selftests/ftrace/Makefile
+++ b/tools/testing/selftests/ftrace/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 TEST_PROGS := ftracetest
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc
index ebfce83f35b4..531e472362df 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/basic2.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Basic test for tracers
 # flags: instance
 test -f available_tracers
diff --git a/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc b/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc
index 9e33f841812f..58a2506f788e 100644
--- a/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc
+++ b/tools/testing/selftests/ftrace/test.d/00basic/basic3.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Basic trace clock test
 # flags: instance
 test -f trace_clock
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
index 283b45ecb199..6ff851a75884 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-enable.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - enable/disable with event level files
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
index 96c1a95be4f7..cc14feec6e1f 100644
--- a/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/event-pid.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - restricts events based on pid
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
index b8fe2e5b9e67..85094904aa79 100644
--- a/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - enable/disable with subsystem level files
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
index 15e2d3fe1731..cc1cf4d30ef5 100644
--- a/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
+++ b/tools/testing/selftests/ftrace/test.d/event/toplevel-enable.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event tracing - enable/disable with top level files
 
 do_reset() {
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
index 15c2dba06ea2..45df747887e0 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter-stack.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function graph filters with stack tracer
 
 # Make sure that function graph filtering works, and is not
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
index 0ab2189613ef..0387e22e7577 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/fgraph-filter.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function graph filters
 
 # Make sure that function graph filtering works
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
index 8095e122daa9..589d52b211b7 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-glob.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function glob filters
 
 # Make sure that function glob matching filter works.
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
index bab5ff7c607e..78524fcc25ae 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func-filter-pid.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function pid filters
 
 # Make sure that function pid matching filter works.
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
index 77dfb6b48186..9d4afcca1e36 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_event_triggers.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - test for function event triggers
 # flags: instance
 #
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
index 7808336d6f50..fe0dc5a7ea26 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_profiler.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - function profiler with function tracing
 
 # There was a bug after a rewrite of the ftrace infrastructure that
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
index 113b4d9bc733..5ad723724adb 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_set_ftrace_file.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - test reading of set_ftrace_filter
 #
 # The set_ftrace_filter file of ftrace is used to list functions as well as
diff --git a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
index 7a9ab4ff83b6..cdc92a371cd7 100644
--- a/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
+++ b/tools/testing/selftests/ftrace/test.d/ftrace/func_traceonoff_triggers.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: ftrace - test for function traceon/off triggers
 # flags: instance
 #
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
index 8a353314dc9b..d7f48b55df51 100644
--- a/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance-event.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Test creation and deletion of trace instances while setting an event
 
 if [ ! -d instances ] ; then
diff --git a/tools/testing/selftests/ftrace/test.d/instances/instance.tc b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
index 1e1abe0ad354..ddda62203366 100644
--- a/tools/testing/selftests/ftrace/test.d/instances/instance.tc
+++ b/tools/testing/selftests/ftrace/test.d/instances/instance.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Test creation and deletion of trace instances
 
 if [ ! -d instances ] ; then
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc
index c3843ed49bf6..4604d2103c89 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/add_and_remove.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event - adding and removing
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
index 74507db8bbc8..0e6f415c6152 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/busy_check.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event - busy event check
 
 [ -f kprobe_events ] || exit_unsupported
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
index 64949d4eda69..679bbd23bcc3 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event with arguments
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
index c75faefb4fff..17d33ba192f6 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_args_type.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobes event arguments with types
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
index b9302cc82c12..2724a1068cb1 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_eventname.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe event auto/manual naming
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
index d6f2f4965697..cc4cac0e60f2 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_ftrace.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event with function tracer
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
index 6d634e4b7680..1e9f75f7a30f 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_module.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kprobe dynamic event - probing module
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
index 0d09546258fd..f1825bdbe3f3 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_args.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kretprobe dynamic event with arguments
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc
index 7ec6f2639ad6..7c0290684c43 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/kretprobe_maxactive.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Kretprobe dynamic event with maxactive
 
 [ -f kprobe_events ] || exit_unsupported # this is configurable
diff --git a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
index 2a1cb9908746..bb16cf91f1b5 100644
--- a/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
+++ b/tools/testing/selftests/ftrace/test.d/kprobe/multiple_kprobes.tc
@@ -1,6 +1,9 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: Register/unregister many kprobe events
 
+[ -f kprobe_events ] || exit_unsupported # this is configurable
+
 # ftrace fentry skip size depends on the machine architecture.
 # Currently HAVE_KPROBES_ON_FTRACE defined on x86 and powerpc64le
 case `uname -m` in
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc
index c5435adfdd93..839ac4320b24 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-eventonoff.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test event enable/disable trigger
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc
index 48849a8d577f..66873c4b12c9 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-filter.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test trigger filter
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc
index b7f86d10b549..4237b32769f1 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-mod.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test histogram modifiers
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
index fb66f7d9339d..d24e2b8bd863 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-hist.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test histogram trigger
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc
index f9153087dd7c..4c0774fff378 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-multihist.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test multiple histogram triggers
 # flags: instance
 
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc
index ed94f0c4e0e4..3fc6321e081f 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-snapshot.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test snapshot-trigger
 
 do_reset() {
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc
index 9fa23b085def..3652824f81ed 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test stacktrace-trigger
 
 do_reset() {
diff --git a/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc b/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc
index 87648e5f987c..6d9051cdf408 100644
--- a/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc
+++ b/tools/testing/selftests/ftrace/test.d/trigger/trigger-traceonoff.tc
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # description: event trigger - test traceon/off trigger
 
 do_reset() {
diff --git a/tools/testing/selftests/futex/Makefile b/tools/testing/selftests/futex/Makefile
index 7c647f619d63..cea4adcd42b8 100644
--- a/tools/testing/selftests/futex/Makefile
+++ b/tools/testing/selftests/futex/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 SUBDIRS := functional
 
 TEST_PROGS := run.sh
@@ -7,14 +8,17 @@ TEST_PROGS := run.sh
 include ../lib.mk
 
 all:
-	for DIR in $(SUBDIRS); do		\
+	@for DIR in $(SUBDIRS); do		\
 		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
+		if [ -e $$DIR/$(TEST_PROGS) ]; then
+			rsync -a $$DIR/$(TEST_PROGS) $$BUILD_TARGET/;
+		fi
 	done
 
 override define RUN_TESTS
-	$(OUTPUT)/run.sh
+	@cd $(OUTPUT); ./run.sh
 endef
 
 override define INSTALL_RULE
@@ -33,7 +37,7 @@ override define EMIT_TESTS
 endef
 
 override define CLEAN
-	for DIR in $(SUBDIRS); do		\
+	@for DIR in $(SUBDIRS); do		\
 		BUILD_TARGET=$(OUTPUT)/$$DIR;	\
 		mkdir $$BUILD_TARGET  -p;	\
 		make OUTPUT=$$BUILD_TARGET -C $$DIR $@;\
diff --git a/tools/testing/selftests/futex/functional/Makefile b/tools/testing/selftests/futex/functional/Makefile
index a648e7a6cbc3..ff8feca49746 100644
--- a/tools/testing/selftests/futex/functional/Makefile
+++ b/tools/testing/selftests/futex/functional/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 INCLUDES := -I../include -I../../
 CFLAGS := $(CFLAGS) -g -O2 -Wall -D_GNU_SOURCE -pthread $(INCLUDES)
 LDFLAGS := $(LDFLAGS) -pthread -lrt
diff --git a/tools/testing/selftests/gpio/Makefile b/tools/testing/selftests/gpio/Makefile
index 298929df97e6..1bbb47565c55 100644
--- a/tools/testing/selftests/gpio/Makefile
+++ b/tools/testing/selftests/gpio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 
 TEST_PROGS := gpio-mockup.sh
 TEST_FILES := gpio-mockup-sysfs.sh $(BINARIES)
diff --git a/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
index 085d7a39899c..dd269d877562 100755
--- a/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
+++ b/tools/testing/selftests/gpio/gpio-mockup-sysfs.sh
@@ -1,4 +1,5 @@
 
+# SPDX-License-Identifier: GPL-2.0
 is_consistent()
 {
 	val=
diff --git a/tools/testing/selftests/gpio/gpio-mockup.sh b/tools/testing/selftests/gpio/gpio-mockup.sh
index b183439e058e..183fb932edbd 100755
--- a/tools/testing/selftests/gpio/gpio-mockup.sh
+++ b/tools/testing/selftests/gpio/gpio-mockup.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 #exit status
 #1: run as non-root user
diff --git a/tools/testing/selftests/ia64/Makefile b/tools/testing/selftests/ia64/Makefile
index 2b3de2d3e945..4bce1a84b3a1 100644
--- a/tools/testing/selftests/ia64/Makefile
+++ b/tools/testing/selftests/ia64/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := aliasing-test
 
 all: $(TEST_PROGS)
diff --git a/tools/testing/selftests/intel_pstate/Makefile b/tools/testing/selftests/intel_pstate/Makefile
index 849a90ffe8dd..5a3f7d37e912 100644
--- a/tools/testing/selftests/intel_pstate/Makefile
+++ b/tools/testing/selftests/intel_pstate/Makefile
@@ -1,7 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS := $(CFLAGS) -Wall -D_GNU_SOURCE
 LDLIBS := $(LDLIBS) -lm
 
+ifeq (,$(filter $(ARCH),x86))
 TEST_GEN_FILES := msr aperf
+endif
 
 TEST_PROGS := run.sh
 
diff --git a/tools/testing/selftests/intel_pstate/aperf.c b/tools/testing/selftests/intel_pstate/aperf.c
index cd72f3dc83e9..d21edea9c560 100644
--- a/tools/testing/selftests/intel_pstate/aperf.c
+++ b/tools/testing/selftests/intel_pstate/aperf.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <math.h>
 #include <unistd.h>
 #include <stdio.h>
diff --git a/tools/testing/selftests/intel_pstate/msr.c b/tools/testing/selftests/intel_pstate/msr.c
index abbbfc84d359..88fdd2a4b0a0 100644
--- a/tools/testing/selftests/intel_pstate/msr.c
+++ b/tools/testing/selftests/intel_pstate/msr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <math.h>
 #include <unistd.h>
 #include <stdio.h>
diff --git a/tools/testing/selftests/intel_pstate/run.sh b/tools/testing/selftests/intel_pstate/run.sh
index 7868c106b8b1..c670359becc6 100755
--- a/tools/testing/selftests/intel_pstate/run.sh
+++ b/tools/testing/selftests/intel_pstate/run.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #
 # This test runs on Intel x86 based hardware which support the intel_pstate
 # driver.  The test checks the frequency settings from the maximum turbo
@@ -29,13 +30,12 @@
 
 EVALUATE_ONLY=0
 
-max_cpus=$(($(nproc)-1))
+if ! uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ | grep -q x86; then
+	echo "$0 # Skipped: Test can only run on x86 architectures."
+	exit 0
+fi
 
-# compile programs
-gcc aperf.c -Wall -D_GNU_SOURCE -o aperf  -lm
-[ $? -ne 0 ] && echo "Problem compiling aperf.c." && exit 1
-gcc -o msr msr.c -lm
-[ $? -ne 0 ] && echo "Problem compiling msr.c." && exit 1
+max_cpus=$(($(nproc)-1))
 
 function run_test () {
 
diff --git a/tools/testing/selftests/ipc/Makefile b/tools/testing/selftests/ipc/Makefile
index 30ef4c7f53ea..1c4448a843a4 100644
--- a/tools/testing/selftests/ipc/Makefile
+++ b/tools/testing/selftests/ipc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/i386/)
 ifeq ($(ARCH),i386)
diff --git a/tools/testing/selftests/ipc/msgque.c b/tools/testing/selftests/ipc/msgque.c
index 1b2ce334bb3f..ee9382bdfadc 100644
--- a/tools/testing/selftests/ipc/msgque.c
+++ b/tools/testing/selftests/ipc/msgque.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
diff --git a/tools/testing/selftests/kcmp/kcmp_test.c b/tools/testing/selftests/kcmp/kcmp_test.c
index 73684c4a1ed6..6ea7b9f37a41 100644
--- a/tools/testing/selftests/kcmp/kcmp_test.c
+++ b/tools/testing/selftests/kcmp/kcmp_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 
 #include <stdio.h>
diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk
index 693616651da5..5bef05d6ba39 100644
--- a/tools/testing/selftests/lib.mk
+++ b/tools/testing/selftests/lib.mk
@@ -6,7 +6,14 @@ ifeq (0,$(MAKELEVEL))
 OUTPUT := $(shell pwd)
 endif
 
+# The following are built by lib.mk common compile rules.
+# TEST_CUSTOM_PROGS should be used by tests that require
+# custom build rule and prevent common build rule use.
+# TEST_PROGS are for test shell scripts.
+# TEST_CUSTOM_PROGS and TEST_PROGS will be run by common run_tests
+# and install targets. Common clean doesn't touch them.
 TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS))
+TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED))
 TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES))
 
 all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES)
@@ -20,17 +27,32 @@ define RUN_TESTS
 		test_num=`echo $$test_num+1 | bc`;	\
 		echo "selftests: $$BASENAME_TEST";	\
 		echo "========================================";	\
-		if [ ! -x $$BASENAME_TEST ]; then	\
+		if [ ! -x $$TEST ]; then	\
 			echo "selftests: Warning: file $$BASENAME_TEST is not executable, correct this.";\
 			echo "not ok 1..$$test_num selftests: $$BASENAME_TEST [FAIL]"; \
 		else					\
-			cd `dirname $$TEST` > /dev/null; (./$$BASENAME_TEST && echo "ok 1..$$test_num selftests: $$BASENAME_TEST [PASS]") || echo "not ok 1..$$test_num selftests:  $$BASENAME_TEST [FAIL]"; cd - > /dev/null;\
+		if [ "X$(summary)" != "X" ]; then		\
+				cd `dirname $$TEST` > /dev/null; (./$$BASENAME_TEST > /tmp/$$BASENAME_TEST 2>&1 && echo "ok 1..$$test_num selftests: $$BASENAME_TEST [PASS]") || echo "not ok 1..$$test_num selftests:  $$BASENAME_TEST [FAIL]"; cd - > /dev/null;\
+			else				\
+				cd `dirname $$TEST` > /dev/null; (./$$BASENAME_TEST && echo "ok 1..$$test_num selftests: $$BASENAME_TEST [PASS]") || echo "not ok 1..$$test_num selftests:  $$BASENAME_TEST [FAIL]"; cd - > /dev/null;\
+			fi;				\
 		fi;					\
 	done;
 endef
 
 run_tests: all
-	$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_PROGS))
+ifneq ($(KBUILD_SRC),)
+	@if [ "X$(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES)" != "X" ]; then
+		@rsync -aq $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(OUTPUT)
+	fi
+	@if [ "X$(TEST_PROGS)" != "X" ]; then
+		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(OUTPUT)/$(TEST_PROGS))
+	else
+		$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS))
+	fi
+else
+	$(call RUN_TESTS, $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS))
+endif
 
 define INSTALL_RULE
 	@if [ "X$(TEST_PROGS)$(TEST_PROGS_EXTENDED)$(TEST_FILES)" != "X" ]; then					\
@@ -38,10 +60,10 @@ define INSTALL_RULE
 		echo "rsync -a $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/";	\
 		rsync -a $(TEST_PROGS) $(TEST_PROGS_EXTENDED) $(TEST_FILES) $(INSTALL_PATH)/;		\
 	fi
-	@if [ "X$(TEST_GEN_PROGS)$(TEST_GEN_PROGS_EXTENDED)$(TEST_GEN_FILES)" != "X" ]; then					\
+	@if [ "X$(TEST_GEN_PROGS)$(TEST_CUSTOM_PROGS)$(TEST_GEN_PROGS_EXTENDED)$(TEST_GEN_FILES)" != "X" ]; then					\
 		mkdir -p ${INSTALL_PATH};										\
-		echo "rsync -a $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/";	\
-		rsync -a $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/;		\
+		echo "rsync -a $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/";	\
+		rsync -a $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(INSTALL_PATH)/;		\
 	fi
 endef
 
@@ -53,15 +75,20 @@ else
 endif
 
 define EMIT_TESTS
-	@for TEST in $(TEST_GEN_PROGS) $(TEST_PROGS); do \
+	@for TEST in $(TEST_GEN_PROGS) $(TEST_CUSTOM_PROGS) $(TEST_PROGS); do \
 		BASENAME_TEST=`basename $$TEST`;	\
-		echo "(./$$BASENAME_TEST && echo \"selftests: $$BASENAME_TEST [PASS]\") || echo \"selftests: $$BASENAME_TEST [FAIL]\""; \
+		echo "(./$$BASENAME_TEST > /tmp/$$BASENAME_TEST 2>&1 && echo \"selftests: $$BASENAME_TEST [PASS]\") || echo \"selftests: $$BASENAME_TEST [FAIL]\""; \
 	done;
 endef
 
 emit_tests:
 	$(EMIT_TESTS)
 
+# define if isn't already. It is undefined in make O= case.
+ifeq ($(RM),)
+RM := rm -f
+endif
+
 define CLEAN
 	$(RM) -r $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) $(EXTRA_CLEAN)
 endef
@@ -69,6 +96,15 @@ endef
 clean:
 	$(CLEAN)
 
+# When make O= with kselftest target from main level
+# the following aren't defined.
+#
+ifneq ($(KBUILD_SRC),)
+LINK.c = $(CC) $(CFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+COMPILE.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(TARGET_ARCH) -c
+LINK.S = $(CC) $(ASFLAGS) $(CPPFLAGS) $(LDFLAGS) $(TARGET_ARCH)
+endif
+
 $(OUTPUT)/%:%.c
 	$(LINK.c) $^ $(LDLIBS) -o $@
 
diff --git a/tools/testing/selftests/lib/bitmap.sh b/tools/testing/selftests/lib/bitmap.sh
index b073c22a3435..4dee4d2a8bbe 100755
--- a/tools/testing/selftests/lib/bitmap.sh
+++ b/tools/testing/selftests/lib/bitmap.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs bitmap infrastructure tests using test_bitmap kernel module
 if ! /sbin/modprobe -q -n test_bitmap; then
 	echo "bitmap: [SKIP]"
diff --git a/tools/testing/selftests/lib/prime_numbers.sh b/tools/testing/selftests/lib/prime_numbers.sh
index da4cbcd766f5..b363994e5e11 100755
--- a/tools/testing/selftests/lib/prime_numbers.sh
+++ b/tools/testing/selftests/lib/prime_numbers.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Checks fast/slow prime_number generation for inconsistencies
 
 if ! /sbin/modprobe -q -r prime_numbers; then
diff --git a/tools/testing/selftests/lib/printf.sh b/tools/testing/selftests/lib/printf.sh
index cbf3b124bd94..0c37377fd7d4 100755
--- a/tools/testing/selftests/lib/printf.sh
+++ b/tools/testing/selftests/lib/printf.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs printf infrastructure using test_printf kernel module
 if ! /sbin/modprobe -q -n test_printf; then
 	echo "printf: [SKIP]"
diff --git a/tools/testing/selftests/locking/ww_mutex.sh b/tools/testing/selftests/locking/ww_mutex.sh
index 6905da965f3b..2c3d6b1878c2 100644
--- a/tools/testing/selftests/locking/ww_mutex.sh
+++ b/tools/testing/selftests/locking/ww_mutex.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs API tests for struct ww_mutex (Wait/Wound mutexes)
 
 if /sbin/modprobe -q test-ww_mutex; then
diff --git a/tools/testing/selftests/media_tests/Makefile b/tools/testing/selftests/media_tests/Makefile
index 6b34a0199468..be5bd4ffb895 100644
--- a/tools/testing/selftests/media_tests/Makefile
+++ b/tools/testing/selftests/media_tests/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := media_device_test media_device_open video_device_test
 all: $(TEST_PROGS)
 
diff --git a/tools/testing/selftests/media_tests/bind_unbind_sample.sh b/tools/testing/selftests/media_tests/bind_unbind_sample.sh
index 9f362f10631a..0101c1ec4ff7 100755
--- a/tools/testing/selftests/media_tests/bind_unbind_sample.sh
+++ b/tools/testing/selftests/media_tests/bind_unbind_sample.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 # Find device number in /sys/bus/usb/drivers/drivername
 # Edit this file to update the driver numer and name
 # Example test for uvcvideo driver
diff --git a/tools/testing/selftests/media_tests/open_loop_test.sh b/tools/testing/selftests/media_tests/open_loop_test.sh
index dcd3c17efc17..d4c0179bbe2c 100755
--- a/tools/testing/selftests/media_tests/open_loop_test.sh
+++ b/tools/testing/selftests/media_tests/open_loop_test.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
  i=0
 file=/dev/media$1
  while :; do
diff --git a/tools/testing/selftests/membarrier/membarrier_test.c b/tools/testing/selftests/membarrier/membarrier_test.c
index 21399fcf1a59..9e674d9514d1 100644
--- a/tools/testing/selftests/membarrier/membarrier_test.c
+++ b/tools/testing/selftests/membarrier/membarrier_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <linux/membarrier.h>
 #include <syscall.h>
diff --git a/tools/testing/selftests/memfd/Makefile b/tools/testing/selftests/memfd/Makefile
index bc9d02d615da..3926a0409dda 100644
--- a/tools/testing/selftests/memfd/Makefile
+++ b/tools/testing/selftests/memfd/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -D_FILE_OFFSET_BITS=64
 CFLAGS += -I../../../../include/uapi/
 CFLAGS += -I../../../../include/
diff --git a/tools/testing/selftests/memfd/fuse_mnt.c b/tools/testing/selftests/memfd/fuse_mnt.c
index feacf1280fcd..6936f2a001f3 100644
--- a/tools/testing/selftests/memfd/fuse_mnt.c
+++ b/tools/testing/selftests/memfd/fuse_mnt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * memfd test file-system
  * This file uses FUSE to create a dummy file-system with only one file /memfd.
diff --git a/tools/testing/selftests/memfd/fuse_test.c b/tools/testing/selftests/memfd/fuse_test.c
index 7f3617274bf5..1ccb7a3eb14b 100644
--- a/tools/testing/selftests/memfd/fuse_test.c
+++ b/tools/testing/selftests/memfd/fuse_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * memfd GUP test-case
  * This tests memfd interactions with get_user_pages(). We require the
diff --git a/tools/testing/selftests/memfd/memfd_test.c b/tools/testing/selftests/memfd/memfd_test.c
index f94c6d1fb46f..845e5f67b6f0 100644
--- a/tools/testing/selftests/memfd/memfd_test.c
+++ b/tools/testing/selftests/memfd/memfd_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #define __EXPORTED_HEADERS__
 
diff --git a/tools/testing/selftests/memfd/run_fuse_test.sh b/tools/testing/selftests/memfd/run_fuse_test.sh
index 69b930e1e041..407df68dfe27 100755
--- a/tools/testing/selftests/memfd/run_fuse_test.sh
+++ b/tools/testing/selftests/memfd/run_fuse_test.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if test -d "./mnt" ; then
 	fusermount -u ./mnt
diff --git a/tools/testing/selftests/memfd/run_tests.sh b/tools/testing/selftests/memfd/run_tests.sh
index daabb350697c..daabb350697c 100644..100755
--- a/tools/testing/selftests/memfd/run_tests.sh
+++ b/tools/testing/selftests/memfd/run_tests.sh
diff --git a/tools/testing/selftests/memory-hotplug/Makefile b/tools/testing/selftests/memory-hotplug/Makefile
index afb2624c7048..23db11c94b59 100644
--- a/tools/testing/selftests/memory-hotplug/Makefile
+++ b/tools/testing/selftests/memory-hotplug/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 include ../lib.mk
diff --git a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
index 35025ce9ca66..ae2c790d0880 100755
--- a/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
+++ b/tools/testing/selftests/memory-hotplug/mem-on-off-test.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 
 SYSFS=
 
diff --git a/tools/testing/selftests/mount/Makefile b/tools/testing/selftests/mount/Makefile
index 9093d7ffe87f..e094f71c6dbc 100644
--- a/tools/testing/selftests/mount/Makefile
+++ b/tools/testing/selftests/mount/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for mount selftests.
 CFLAGS = -Wall \
          -O2
diff --git a/tools/testing/selftests/mount/unprivileged-remount-test.c b/tools/testing/selftests/mount/unprivileged-remount-test.c
index 517785052f1c..584dc6bc3b06 100644
--- a/tools/testing/selftests/mount/unprivileged-remount-test.c
+++ b/tools/testing/selftests/mount/unprivileged-remount-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <sched.h>
 #include <stdio.h>
diff --git a/tools/testing/selftests/mqueue/Makefile b/tools/testing/selftests/mqueue/Makefile
index 79a664aeb8d7..743d3f9e5918 100644
--- a/tools/testing/selftests/mqueue/Makefile
+++ b/tools/testing/selftests/mqueue/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -O2
 LDLIBS = -lrt -lpthread -lpopt
 TEST_GEN_PROGS := mq_open_tests mq_perf_tests
@@ -5,8 +6,8 @@ TEST_GEN_PROGS := mq_open_tests mq_perf_tests
 include ../lib.mk
 
 override define RUN_TESTS
-	@./mq_open_tests /test1 || echo "selftests: mq_open_tests [FAIL]"
-	@./mq_perf_tests || echo "selftests: mq_perf_tests [FAIL]"
+	@$(OUTPUT)/mq_open_tests /test1 || echo "selftests: mq_open_tests [FAIL]"
+	@$(OUTPUT)/mq_perf_tests || echo "selftests: mq_perf_tests [FAIL]"
 endef
 
 override define EMIT_TESTS
diff --git a/tools/testing/selftests/net/.gitignore b/tools/testing/selftests/net/.gitignore
index 9801253e4802..c612d6e38c62 100644
--- a/tools/testing/selftests/net/.gitignore
+++ b/tools/testing/selftests/net/.gitignore
@@ -6,3 +6,4 @@ reuseport_bpf
 reuseport_bpf_cpu
 reuseport_bpf_numa
 reuseport_dualstack
+reuseaddr_conflict
diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index de1f5772b878..500c74db746c 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for net selftests
 
 CFLAGS =  -Wall -Wl,--no-as-needed -O2 -g
@@ -5,9 +6,9 @@ CFLAGS += -I../../../../usr/include/
 
 TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh rtnetlink.sh
 TEST_GEN_FILES =  socket
-TEST_GEN_FILES += psock_fanout psock_tpacket
-TEST_GEN_FILES += reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa
-TEST_GEN_FILES += reuseport_dualstack msg_zerocopy
+TEST_GEN_FILES += psock_fanout psock_tpacket msg_zerocopy
+TEST_GEN_PROGS = reuseport_bpf reuseport_bpf_cpu reuseport_bpf_numa
+TEST_GEN_PROGS += reuseport_dualstack reuseaddr_conflict
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/net/msg_zerocopy.c b/tools/testing/selftests/net/msg_zerocopy.c
index 40232af5b023..3ab6ec403905 100644
--- a/tools/testing/selftests/net/msg_zerocopy.c
+++ b/tools/testing/selftests/net/msg_zerocopy.c
@@ -55,7 +55,7 @@
 #include <unistd.h>
 
 #ifndef SO_EE_ORIGIN_ZEROCOPY
-#define SO_EE_ORIGIN_ZEROCOPY		SO_EE_ORIGIN_UPAGE
+#define SO_EE_ORIGIN_ZEROCOPY		5
 #endif
 
 #ifndef SO_ZEROCOPY
diff --git a/tools/testing/selftests/net/netdevice.sh b/tools/testing/selftests/net/netdevice.sh
index 4e00568d70c2..903679e0ff31 100755
--- a/tools/testing/selftests/net/netdevice.sh
+++ b/tools/testing/selftests/net/netdevice.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # This test is for checking network interface
 # For the moment it tests only ethernet interface (but wifi could be easily added)
@@ -178,7 +179,7 @@ if [ "$(id -u)" -ne 0 ];then
 	exit 0
 fi
 
-ip -Version 2>/dev/null >/dev/null
+ip link show 2>/dev/null >/dev/null
 if [ $? -ne 0 ];then
 	echo "SKIP: Could not run test without the ip tool"
 	exit 0
diff --git a/tools/testing/selftests/net/reuseaddr_conflict.c b/tools/testing/selftests/net/reuseaddr_conflict.c
new file mode 100644
index 000000000000..7c5b12664b03
--- /dev/null
+++ b/tools/testing/selftests/net/reuseaddr_conflict.c
@@ -0,0 +1,114 @@
+/*
+ * Test for the regression introduced by
+ *
+ * b9470c27607b ("inet: kill smallest_size and smallest_port")
+ *
+ * If we open an ipv4 socket on a port with reuseaddr we shouldn't reset the tb
+ * when we open the ipv6 conterpart, which is what was happening previously.
+ */
+#include <errno.h>
+#include <error.h>
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#define PORT 9999
+
+int open_port(int ipv6, int any)
+{
+	int fd = -1;
+	int reuseaddr = 1;
+	int v6only = 1;
+	int addrlen;
+	int ret = -1;
+	struct sockaddr *addr;
+	int family = ipv6 ? AF_INET6 : AF_INET;
+
+	struct sockaddr_in6 addr6 = {
+		.sin6_family = AF_INET6,
+		.sin6_port = htons(PORT),
+		.sin6_addr = in6addr_any
+	};
+	struct sockaddr_in addr4 = {
+		.sin_family = AF_INET,
+		.sin_port = htons(PORT),
+		.sin_addr.s_addr = any ? htonl(INADDR_ANY) : inet_addr("127.0.0.1"),
+	};
+
+
+	if (ipv6) {
+		addr = (struct sockaddr*)&addr6;
+		addrlen = sizeof(addr6);
+	} else {
+		addr = (struct sockaddr*)&addr4;
+		addrlen = sizeof(addr4);
+	}
+
+	if ((fd = socket(family, SOCK_STREAM, IPPROTO_TCP)) < 0) {
+		perror("socket");
+		goto out;
+	}
+
+	if (ipv6 && setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&v6only,
+			       sizeof(v6only)) < 0) {
+		perror("setsockopt IPV6_V6ONLY");
+		goto out;
+	}
+
+	if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuseaddr,
+		       sizeof(reuseaddr)) < 0) {
+		perror("setsockopt SO_REUSEADDR");
+		goto out;
+	}
+
+	if (bind(fd, addr, addrlen) < 0) {
+		perror("bind");
+		goto out;
+	}
+
+	if (any)
+		return fd;
+
+	if (listen(fd, 1) < 0) {
+		perror("listen");
+		goto out;
+	}
+	return fd;
+out:
+	close(fd);
+	return ret;
+}
+
+int main(void)
+{
+	int listenfd;
+	int fd1, fd2;
+
+	fprintf(stderr, "Opening 127.0.0.1:%d\n", PORT);
+	listenfd = open_port(0, 0);
+	if (listenfd < 0)
+		error(1, errno, "Couldn't open listen socket");
+	fprintf(stderr, "Opening INADDR_ANY:%d\n", PORT);
+	fd1 = open_port(0, 1);
+	if (fd1 >= 0)
+		error(1, 0, "Was allowed to create an ipv4 reuseport on a already bound non-reuseport socket");
+	fprintf(stderr, "Opening in6addr_any:%d\n", PORT);
+	fd1 = open_port(1, 1);
+	if (fd1 < 0)
+		error(1, errno, "Couldn't open ipv6 reuseport");
+	fprintf(stderr, "Opening INADDR_ANY:%d\n", PORT);
+	fd2 = open_port(0, 1);
+	if (fd2 >= 0)
+		error(1, 0, "Was allowed to create an ipv4 reuseport on a already bound non-reuseport socket");
+	close(fd1);
+	fprintf(stderr, "Opening INADDR_ANY:%d after closing ipv6 socket\n", PORT);
+	fd1 = open_port(0, 1);
+	if (fd1 >= 0)
+		error(1, 0, "Was allowed to create an ipv4 reuseport on an already bound non-reuseport socket with no ipv6");
+	fprintf(stderr, "Success");
+	return 0;
+}
diff --git a/tools/testing/selftests/net/reuseport_bpf_cpu.c b/tools/testing/selftests/net/reuseport_bpf_cpu.c
index b23d6f54de7b..2d646174729f 100644
--- a/tools/testing/selftests/net/reuseport_bpf_cpu.c
+++ b/tools/testing/selftests/net/reuseport_bpf_cpu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Test functionality of BPF filters with SO_REUSEPORT.  This program creates
  * an SO_REUSEPORT receiver group containing one socket per CPU core. It then
diff --git a/tools/testing/selftests/net/reuseport_bpf_numa.c b/tools/testing/selftests/net/reuseport_bpf_numa.c
index 6f20bc9ff627..365c32e84189 100644
--- a/tools/testing/selftests/net/reuseport_bpf_numa.c
+++ b/tools/testing/selftests/net/reuseport_bpf_numa.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Test functionality of BPF filters with SO_REUSEPORT. Same test as
  * in reuseport_bpf_cpu, only as one socket per NUMA node.
diff --git a/tools/testing/selftests/net/reuseport_dualstack.c b/tools/testing/selftests/net/reuseport_dualstack.c
index 90958aaaafb9..fe3230c55986 100644
--- a/tools/testing/selftests/net/reuseport_dualstack.c
+++ b/tools/testing/selftests/net/reuseport_dualstack.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * It is possible to use SO_REUSEPORT to open multiple sockets bound to
  * equivalent local addresses using AF_INET and AF_INET6 at the same time.  If
diff --git a/tools/testing/selftests/net/run_afpackettests b/tools/testing/selftests/net/run_afpackettests
index 5246e782d6e8..21fe149e3de1 100755
--- a/tools/testing/selftests/net/run_afpackettests
+++ b/tools/testing/selftests/net/run_afpackettests
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if [ $(id -u) != 0 ]; then
 	echo $msg must be run as root >&2
diff --git a/tools/testing/selftests/net/run_netsocktests b/tools/testing/selftests/net/run_netsocktests
index 16058bbea7a8..b093f39c298c 100755
--- a/tools/testing/selftests/net/run_netsocktests
+++ b/tools/testing/selftests/net/run_netsocktests
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 echo "--------------------"
 echo "running socket test"
diff --git a/tools/testing/selftests/net/socket.c b/tools/testing/selftests/net/socket.c
index 0f227f2f9be9..afca1ead677f 100644
--- a/tools/testing/selftests/net/socket.c
+++ b/tools/testing/selftests/net/socket.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <errno.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/net/test_bpf.sh b/tools/testing/selftests/net/test_bpf.sh
index 8b29796d46aa..65677909c574 100755
--- a/tools/testing/selftests/net/test_bpf.sh
+++ b/tools/testing/selftests/net/test_bpf.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs bpf test using test_bpf kernel module
 
 if /sbin/modprobe -q test_bpf ; then
diff --git a/tools/testing/selftests/networking/timestamping/Makefile b/tools/testing/selftests/networking/timestamping/Makefile
index 92fb8ee917c5..a728040edbe1 100644
--- a/tools/testing/selftests/networking/timestamping/Makefile
+++ b/tools/testing/selftests/networking/timestamping/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -I../../../../../usr/include
 
 TEST_PROGS := hwtstamp_config rxtimestamp timestamping txtimestamp
diff --git a/tools/testing/selftests/networking/timestamping/hwtstamp_config.c b/tools/testing/selftests/networking/timestamping/hwtstamp_config.c
index e8b685a7f15f..e1fdee841021 100644
--- a/tools/testing/selftests/networking/timestamping/hwtstamp_config.c
+++ b/tools/testing/selftests/networking/timestamping/hwtstamp_config.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Test program for SIOC{G,S}HWTSTAMP
  * Copyright 2013 Solarflare Communications
  * Author: Ben Hutchings
diff --git a/tools/testing/selftests/networking/timestamping/rxtimestamp.c b/tools/testing/selftests/networking/timestamping/rxtimestamp.c
index 00f286661dcd..dd4162fc0419 100644
--- a/tools/testing/selftests/networking/timestamping/rxtimestamp.c
+++ b/tools/testing/selftests/networking/timestamping/rxtimestamp.c
@@ -341,7 +341,7 @@ int main(int argc, char **argv)
 			return 0;
 		case 'n':
 			t = atoi(optarg);
-			if (t > ARRAY_SIZE(test_cases))
+			if (t >= ARRAY_SIZE(test_cases))
 				error(1, 0, "Invalid test case: %d", t);
 			all_tests = false;
 			test_cases[t].enabled = true;
diff --git a/tools/testing/selftests/nsfs/owner.c b/tools/testing/selftests/nsfs/owner.c
index 437205f8b714..96a976c74550 100644
--- a/tools/testing/selftests/nsfs/owner.c
+++ b/tools/testing/selftests/nsfs/owner.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <sched.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/nsfs/pidns.c b/tools/testing/selftests/nsfs/pidns.c
index ae3a0d68e966..1182d4e437a2 100644
--- a/tools/testing/selftests/nsfs/pidns.c
+++ b/tools/testing/selftests/nsfs/pidns.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <sched.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/powerpc/Makefile b/tools/testing/selftests/powerpc/Makefile
index 72c3ac2323e1..f6b1338730db 100644
--- a/tools/testing/selftests/powerpc/Makefile
+++ b/tools/testing/selftests/powerpc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for powerpc selftests
 
 # ARCH can be overridden by the user for cross compiling
diff --git a/tools/testing/selftests/powerpc/benchmarks/Makefile b/tools/testing/selftests/powerpc/benchmarks/Makefile
index fb96a89bd953..a35058e3766c 100644
--- a/tools/testing/selftests/powerpc/benchmarks/Makefile
+++ b/tools/testing/selftests/powerpc/benchmarks/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_GEN_PROGS := gettimeofday context_switch mmap_bench futex_bench null_syscall
 
 CFLAGS += -O2
diff --git a/tools/testing/selftests/powerpc/cache_shape/Makefile b/tools/testing/selftests/powerpc/cache_shape/Makefile
index b24485ab30e2..1be547434a49 100644
--- a/tools/testing/selftests/powerpc/cache_shape/Makefile
+++ b/tools/testing/selftests/powerpc/cache_shape/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := cache_shape
 
 all: $(TEST_PROGS)
diff --git a/tools/testing/selftests/powerpc/copyloops/Makefile b/tools/testing/selftests/powerpc/copyloops/Makefile
index 681ab19d0a84..ac4a52e19e59 100644
--- a/tools/testing/selftests/powerpc/copyloops/Makefile
+++ b/tools/testing/selftests/powerpc/copyloops/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # The loops are all 64-bit code
 CFLAGS += -m64
 CFLAGS += -I$(CURDIR)
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/export.h b/tools/testing/selftests/powerpc/copyloops/asm/export.h
index 2d14a9b4248c..0bab35f6777a 100644
--- a/tools/testing/selftests/powerpc/copyloops/asm/export.h
+++ b/tools/testing/selftests/powerpc/copyloops/asm/export.h
@@ -1 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #define EXPORT_SYMBOL(x)
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
index 80d34a9ffff4..5ffe04d802c9 100644
--- a/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <ppc-asm.h>
 
 #define CONFIG_ALTIVEC
diff --git a/tools/testing/selftests/powerpc/copyloops/validate.c b/tools/testing/selftests/powerpc/copyloops/validate.c
index 7fb436f82d16..0f6873618552 100644
--- a/tools/testing/selftests/powerpc/copyloops/validate.c
+++ b/tools/testing/selftests/powerpc/copyloops/validate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <malloc.h>
 #include <string.h>
 #include <stdlib.h>
diff --git a/tools/testing/selftests/powerpc/dscr/Makefile b/tools/testing/selftests/powerpc/dscr/Makefile
index c5639deb8887..55d7db7a616b 100644
--- a/tools/testing/selftests/powerpc/dscr/Makefile
+++ b/tools/testing/selftests/powerpc/dscr/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_GEN_PROGS := dscr_default_test dscr_explicit_test dscr_user_test	\
 	      dscr_inherit_test dscr_inherit_exec_test dscr_sysfs_test	\
 	      dscr_sysfs_thread_test
diff --git a/tools/testing/selftests/powerpc/dscr/dscr.h b/tools/testing/selftests/powerpc/dscr/dscr.h
index 18ea223bd398..cdb840bc54f2 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr.h
+++ b/tools/testing/selftests/powerpc/dscr/dscr.h
@@ -39,7 +39,7 @@
 #define rmb()  asm volatile("lwsync":::"memory")
 #define wmb()  asm volatile("lwsync":::"memory")
 
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+#define READ_ONCE(x) (*(volatile typeof(x) *)&(x))
 
 /* Prilvilege state DSCR access */
 inline unsigned long get_dscr(void)
diff --git a/tools/testing/selftests/powerpc/dscr/dscr_default_test.c b/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
index df17c3bab0a7..9e1a37e93b63 100644
--- a/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
+++ b/tools/testing/selftests/powerpc/dscr/dscr_default_test.c
@@ -27,7 +27,7 @@ static void *do_test(void *in)
 		unsigned long d, cur_dscr, cur_dscr_usr;
 		unsigned long s1, s2;
 
-		s1 = ACCESS_ONCE(sequence);
+		s1 = READ_ONCE(sequence);
 		if (s1 & 1)
 			continue;
 		rmb();
diff --git a/tools/testing/selftests/powerpc/include/basic_asm.h b/tools/testing/selftests/powerpc/include/basic_asm.h
index 12eaddf72e66..886dc026fe7a 100644
--- a/tools/testing/selftests/powerpc/include/basic_asm.h
+++ b/tools/testing/selftests/powerpc/include/basic_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SELFTESTS_POWERPC_BASIC_ASM_H
 #define _SELFTESTS_POWERPC_BASIC_ASM_H
 
diff --git a/tools/testing/selftests/powerpc/include/instructions.h b/tools/testing/selftests/powerpc/include/instructions.h
index 0fb0bd3b28c9..f36061eb6f0f 100644
--- a/tools/testing/selftests/powerpc/include/instructions.h
+++ b/tools/testing/selftests/powerpc/include/instructions.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _SELFTESTS_POWERPC_INSTRUCTIONS_H
 #define _SELFTESTS_POWERPC_INSTRUCTIONS_H
 
diff --git a/tools/testing/selftests/powerpc/math/Makefile b/tools/testing/selftests/powerpc/math/Makefile
index fa8bae920c91..0dd3a01fdab9 100644
--- a/tools/testing/selftests/powerpc/math/Makefile
+++ b/tools/testing/selftests/powerpc/math/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_GEN_PROGS := fpu_syscall fpu_preempt fpu_signal vmx_syscall vmx_preempt vmx_signal vsx_preempt
 
 include ../../lib.mk
diff --git a/tools/testing/selftests/powerpc/mm/Makefile b/tools/testing/selftests/powerpc/mm/Makefile
index 1cffe54dccfb..bf315bcbe663 100644
--- a/tools/testing/selftests/powerpc/mm/Makefile
+++ b/tools/testing/selftests/powerpc/mm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 noarg:
 	$(MAKE) -C ../
 
diff --git a/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c b/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c
index 49003674de4f..9932359ce38f 100644
--- a/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c
+++ b/tools/testing/selftests/powerpc/mm/hugetlb_vs_thp_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <sys/mman.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/powerpc/pmu/Makefile b/tools/testing/selftests/powerpc/pmu/Makefile
index e4e55d1d3e0f..6e1629bf5b09 100644
--- a/tools/testing/selftests/powerpc/pmu/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 noarg:
 	$(MAKE) -C ../
 
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index 6001fb0a377a..c4e64bc2e265 100644
--- a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
+++ b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 noarg:
 	$(MAKE) -C ../../
 
diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile b/tools/testing/selftests/powerpc/ptrace/Makefile
index 8932263e5a74..480305266504 100644
--- a/tools/testing/selftests/powerpc/ptrace/Makefile
+++ b/tools/testing/selftests/powerpc/ptrace/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := ptrace-gpr ptrace-tm-gpr ptrace-tm-spd-gpr \
               ptrace-tar ptrace-tm-tar ptrace-tm-spd-tar ptrace-vsx ptrace-tm-vsx \
               ptrace-tm-spd-vsx ptrace-tm-spr
diff --git a/tools/testing/selftests/powerpc/signal/Makefile b/tools/testing/selftests/powerpc/signal/Makefile
index f0eef27458e2..a7cbd5082e27 100644
--- a/tools/testing/selftests/powerpc/signal/Makefile
+++ b/tools/testing/selftests/powerpc/signal/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := signal signal_tm
 
 all: $(TEST_PROGS)
diff --git a/tools/testing/selftests/powerpc/stringloops/Makefile b/tools/testing/selftests/powerpc/stringloops/Makefile
index 557b9379f3bb..1125e489055e 100644
--- a/tools/testing/selftests/powerpc/stringloops/Makefile
+++ b/tools/testing/selftests/powerpc/stringloops/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # The loops are all 64-bit code
 CFLAGS += -m64
 CFLAGS += -I$(CURDIR)
diff --git a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
index 11bece87e880..136242ec4b0e 100644
--- a/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
+++ b/tools/testing/selftests/powerpc/stringloops/asm/ppc_asm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <ppc-asm.h>
 
 #ifndef r1
diff --git a/tools/testing/selftests/powerpc/stringloops/memcmp.c b/tools/testing/selftests/powerpc/stringloops/memcmp.c
index 30b1222380ca..8250db25b379 100644
--- a/tools/testing/selftests/powerpc/stringloops/memcmp.c
+++ b/tools/testing/selftests/powerpc/stringloops/memcmp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <malloc.h>
 #include <stdlib.h>
 #include <string.h>
diff --git a/tools/testing/selftests/powerpc/switch_endian/Makefile b/tools/testing/selftests/powerpc/switch_endian/Makefile
index b92c2a132c4f..30b8ff8fb82e 100644
--- a/tools/testing/selftests/powerpc/switch_endian/Makefile
+++ b/tools/testing/selftests/powerpc/switch_endian/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_GEN_PROGS := switch_endian_test
 
 ASFLAGS += -O2 -Wall -g -nostdlib -m64
diff --git a/tools/testing/selftests/powerpc/switch_endian/check.S b/tools/testing/selftests/powerpc/switch_endian/check.S
index e2484d2c24f4..927a5c675e83 100644
--- a/tools/testing/selftests/powerpc/switch_endian/check.S
+++ b/tools/testing/selftests/powerpc/switch_endian/check.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "common.h"
 
 /*
diff --git a/tools/testing/selftests/powerpc/switch_endian/common.h b/tools/testing/selftests/powerpc/switch_endian/common.h
index 69e399698c64..1434cbc2a6ad 100644
--- a/tools/testing/selftests/powerpc/switch_endian/common.h
+++ b/tools/testing/selftests/powerpc/switch_endian/common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <ppc-asm.h>
 #include <asm/unistd.h>
 
diff --git a/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S b/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
index bceb53f57573..cc4930467235 100644
--- a/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
+++ b/tools/testing/selftests/powerpc/switch_endian/switch_endian_test.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include "common.h"
 
 	.data
diff --git a/tools/testing/selftests/powerpc/syscalls/ipc.h b/tools/testing/selftests/powerpc/syscalls/ipc.h
index fbebc022edf6..26a20682c9a4 100644
--- a/tools/testing/selftests/powerpc/syscalls/ipc.h
+++ b/tools/testing/selftests/powerpc/syscalls/ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifdef __NR_semop
 DO_TEST(semop, __NR_semop)
 #endif
diff --git a/tools/testing/selftests/powerpc/tm/Makefile b/tools/testing/selftests/powerpc/tm/Makefile
index 7bfcd454fb2a..fca7c7f5e640 100644
--- a/tools/testing/selftests/powerpc/tm/Makefile
+++ b/tools/testing/selftests/powerpc/tm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 SIGNAL_CONTEXT_CHK_TESTS := tm-signal-context-chk-gpr tm-signal-context-chk-fpu \
 	tm-signal-context-chk-vmx tm-signal-context-chk-vsx
 
diff --git a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
index a7ac2e4c60d9..4cdb83964bb3 100644
--- a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
+++ b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Test context switching to see if the DSCR SPR is correctly preserved
  * when within a transaction.
  *
diff --git a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
index 431f61ae2368..bd1ca25febe4 100644
--- a/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
+++ b/tools/testing/selftests/powerpc/tm/tm-syscall-asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <ppc-asm.h>
 #include <asm/unistd.h>
 
diff --git a/tools/testing/selftests/powerpc/vphn/test-vphn.c b/tools/testing/selftests/powerpc/vphn/test-vphn.c
index 5742f6876b25..81d3069ffb84 100644
--- a/tools/testing/selftests/powerpc/vphn/test-vphn.c
+++ b/tools/testing/selftests/powerpc/vphn/test-vphn.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <byteswap.h>
 #include "utils.h"
diff --git a/tools/testing/selftests/prctl/Makefile b/tools/testing/selftests/prctl/Makefile
index 35aa1c8f2df2..c7923b205222 100644
--- a/tools/testing/selftests/prctl/Makefile
+++ b/tools/testing/selftests/prctl/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef CROSS_COMPILE
 uname_M := $(shell uname -m 2>/dev/null || echo not)
 ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
diff --git a/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c b/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c
index f7499d1c0415..62a93cc61b7c 100644
--- a/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c
+++ b/tools/testing/selftests/prctl/disable-tsc-ctxt-sw-stress-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
  *
diff --git a/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c b/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c
index a06f027e9d16..79950f9a26fd 100644
--- a/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c
+++ b/tools/testing/selftests/prctl/disable-tsc-on-off-stress-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
  *
diff --git a/tools/testing/selftests/prctl/disable-tsc-test.c b/tools/testing/selftests/prctl/disable-tsc-test.c
index 8d494f7bebdb..f84d4ee111d3 100644
--- a/tools/testing/selftests/prctl/disable-tsc-test.c
+++ b/tools/testing/selftests/prctl/disable-tsc-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tests for prctl(PR_GET_TSC, ...) / prctl(PR_SET_TSC, ...)
  *
diff --git a/tools/testing/selftests/pstore/Makefile b/tools/testing/selftests/pstore/Makefile
index c5f2440ba1f7..5ef57855a2be 100644
--- a/tools/testing/selftests/pstore/Makefile
+++ b/tools/testing/selftests/pstore/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for pstore selftests.
 # Expects pstore backend is registered.
 
diff --git a/tools/testing/selftests/ptp/Makefile b/tools/testing/selftests/ptp/Makefile
index d4064c742c26..ef06de0898b7 100644
--- a/tools/testing/selftests/ptp/Makefile
+++ b/tools/testing/selftests/ptp/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -I../../../../usr/include/
 TEST_PROGS := testptp
 LDLIBS += -lrt
diff --git a/tools/testing/selftests/ptrace/peeksiginfo.c b/tools/testing/selftests/ptrace/peeksiginfo.c
index c34cd8ac8aaa..54900657eb44 100644
--- a/tools/testing/selftests/ptrace/peeksiginfo.c
+++ b/tools/testing/selftests/ptrace/peeksiginfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <stdio.h>
 #include <signal.h>
diff --git a/tools/testing/selftests/rcutorture/bin/config_override.sh b/tools/testing/selftests/rcutorture/bin/config_override.sh
index 49fa51726ce3..ef7fcbac3d42 100755
--- a/tools/testing/selftests/rcutorture/bin/config_override.sh
+++ b/tools/testing/selftests/rcutorture/bin/config_override.sh
@@ -42,7 +42,7 @@ else
 	exit 1
 fi
 
-T=/tmp/config_override.sh.$$
+T=${TMPDIR-/tmp}/config_override.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
diff --git a/tools/testing/selftests/rcutorture/bin/configcheck.sh b/tools/testing/selftests/rcutorture/bin/configcheck.sh
index 70fca318a82b..197deece7c7c 100755
--- a/tools/testing/selftests/rcutorture/bin/configcheck.sh
+++ b/tools/testing/selftests/rcutorture/bin/configcheck.sh
@@ -19,7 +19,7 @@
 #
 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
-T=/tmp/abat-chk-config.sh.$$
+T=${TMPDIR-/tmp}/abat-chk-config.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
diff --git a/tools/testing/selftests/rcutorture/bin/configinit.sh b/tools/testing/selftests/rcutorture/bin/configinit.sh
index 3f81a1095206..51f66a7ce876 100755
--- a/tools/testing/selftests/rcutorture/bin/configinit.sh
+++ b/tools/testing/selftests/rcutorture/bin/configinit.sh
@@ -32,7 +32,7 @@
 #
 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
-T=/tmp/configinit.sh.$$
+T=${TMPDIR-/tmp}/configinit.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-build.sh b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
index 46752c164676..fb66d0173638 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-build.sh
@@ -35,7 +35,7 @@ then
 	exit 1
 fi
 
-T=/tmp/test-linux.sh.$$
+T=${TMPDIR-/tmp}/test-linux.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 0af36a721b9c..ab14b97c942c 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -38,7 +38,7 @@
 #
 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
-T=/tmp/kvm-test-1-run.sh.$$
+T=${TMPDIR-/tmp}/kvm-test-1-run.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
diff --git a/tools/testing/selftests/rcutorture/bin/kvm.sh b/tools/testing/selftests/rcutorture/bin/kvm.sh
index b55895fb10ed..ccd49e958fd2 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm.sh
@@ -30,7 +30,7 @@
 scriptname=$0
 args="$*"
 
-T=/tmp/kvm.sh.$$
+T=${TMPDIR-/tmp}/kvm.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
@@ -222,7 +222,7 @@ do
 		exit 1
 	fi
 done
-sort -k2nr $T/cfgcpu > $T/cfgcpu.sort
+sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
 
 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
diff --git a/tools/testing/selftests/rcutorture/bin/parse-build.sh b/tools/testing/selftests/rcutorture/bin/parse-build.sh
index a6b57622c2e5..24fe5f822b28 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-build.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-build.sh
@@ -28,7 +28,7 @@
 
 F=$1
 title=$2
-T=/tmp/parse-build.sh.$$
+T=${TMPDIR-/tmp}/parse-build.sh.$$
 trap 'rm -rf $T' 0
 mkdir $T
 
diff --git a/tools/testing/selftests/rcutorture/bin/parse-torture.sh b/tools/testing/selftests/rcutorture/bin/parse-torture.sh
index e3c5f0705696..f12c38909b00 100755
--- a/tools/testing/selftests/rcutorture/bin/parse-torture.sh
+++ b/tools/testing/selftests/rcutorture/bin/parse-torture.sh
@@ -27,7 +27,7 @@
 #
 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 
-T=/tmp/parse-torture.sh.$$
+T=${TMPDIR-/tmp}/parse-torture.sh.$$
 file="$1"
 title="$2"
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/Makefile b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/Makefile
index 16b01559fa55..4bed0b678f8b 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/Makefile
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all: srcu.c store_buffering
 
 LINUX_SOURCE = ../../../../../..
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/include/linux/types.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/include/linux/types.h
index 4a3d538fef12..891ad13e95b2 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/include/linux/types.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/include/linux/types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * This header has been modifies to remove definitions of types that
  * are defined in standard userspace headers or are problematic for some
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/modify_srcu.awk b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/modify_srcu.awk
index c9e8bc5082a7..e05182d3e47d 100755
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/modify_srcu.awk
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/modify_srcu.awk
@@ -1,4 +1,5 @@
 #!/usr/bin/awk -f
+# SPDX-License-Identifier: GPL-2.0
 
 # Modify SRCU for formal verification. The first argument should be srcu.h and
 # the second should be srcu.c. Outputs modified srcu.h and srcu.c into the
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/assume.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/assume.h
index a64955447995..570a49d9da7e 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/assume.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/assume.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ASSUME_H
 #define ASSUME_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/barriers.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/barriers.h
index 6687acc08e6d..3f95a768a03b 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/barriers.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/barriers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BARRIERS_H
 #define BARRIERS_H
 
@@ -34,8 +35,7 @@
 #define rs_smp_mb() do {} while (0)
 #endif
 
-#define ACCESS_ONCE(x) (*(volatile typeof(x) *) &(x))
-#define READ_ONCE(x) ACCESS_ONCE(x)
-#define WRITE_ONCE(x, val) (ACCESS_ONCE(x) = (val))
+#define READ_ONCE(x) (*(volatile typeof(x) *) &(x))
+#define WRITE_ONCE(x) ((*(volatile typeof(x) *) &(x)) = (val))
 
 #endif
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/bug_on.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/bug_on.h
index 2a80e91f78e7..5e7912c6a521 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/bug_on.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/bug_on.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BUG_ON_H
 #define BUG_ON_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/combined_source.c b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/combined_source.c
index 29eb5d2697ed..e67ee5b3dd7c 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/combined_source.c
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/combined_source.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <config.h>
 
 /* Include all source files. */
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h
index a60038aeea7a..283d7103334f 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /* "Cheater" definitions based on restricted Kconfig choices. */
 
 #undef CONFIG_TINY_RCU
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/include_srcu.c b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/include_srcu.c
index 5ec582a53018..e5202d4cff30 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/include_srcu.c
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/include_srcu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <config.h>
 
 #include <assert.h>
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/int_typedefs.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/int_typedefs.h
index 3aad63917858..0dd27aa517a7 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/int_typedefs.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/int_typedefs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef INT_TYPEDEFS_H
 #define INT_TYPEDEFS_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h
index 356004665576..cf6938d679d7 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/locks.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LOCKS_H
 #define LOCKS_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/misc.c b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/misc.c
index ca892e3b2351..9440cc39e3c6 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/misc.c
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/misc.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <config.h>
 
 #include "misc.h"
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/percpu.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/percpu.h
index 3de5a49de49b..27e67a3f291f 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/percpu.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/percpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PERCPU_H
 #define PERCPU_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.c b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.c
index 4f1b068e9b7a..b4083ae348fb 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.c
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <config.h>
 
 #include "preempt.h"
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.h
index 2f95ee0e4dd5..f8b762cd214c 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/preempt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef PREEMPT_H
 #define PREEMPT_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/simple_sync_srcu.c b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/simple_sync_srcu.c
index ac9cbc62b411..97f592048e0b 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/simple_sync_srcu.c
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/simple_sync_srcu.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <config.h>
 
 #include <assert.h>
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/workqueues.h b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/workqueues.h
index e58c8dfd3e90..28b960300971 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/workqueues.h
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/src/workqueues.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef WORKQUEUES_H
 #define WORKQUEUES_H
 
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/Makefile b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/Makefile
index 3a3aee149225..ad21b925fbb4 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/Makefile
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CBMC_FLAGS = -I../.. -I../../src -I../../include -I../../empty_includes -32 -pointer-check -mm pso
 
 all:
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/test.c b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/test.c
index 470b1105a112..2ce2016f7871 100644
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/test.c
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/store_buffering/test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <src/combined_source.c>
 
 int x;
diff --git a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/test_script.sh b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/test_script.sh
index d1545972a0fa..2fe1f0339b4f 100755
--- a/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/test_script.sh
+++ b/tools/testing/selftests/rcutorture/formal/srcu-cbmc/tests/test_script.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 # This script expects a mode (either --should-pass or --should-fail) followed by
 # an input file. The script uses the following environment variables. The test C
diff --git a/tools/testing/selftests/seccomp/Makefile b/tools/testing/selftests/seccomp/Makefile
index aeb0c805f3ca..fce7f4ce0692 100644
--- a/tools/testing/selftests/seccomp/Makefile
+++ b/tools/testing/selftests/seccomp/Makefile
@@ -1,8 +1,17 @@
-TEST_GEN_PROGS := seccomp_bpf
-CFLAGS += -Wl,-no-as-needed -Wall
-LDFLAGS += -lpthread
+# SPDX-License-Identifier: GPL-2.0
+all:
 
 include ../lib.mk
 
-$(TEST_GEN_PROGS): seccomp_bpf.c ../kselftest_harness.h
-	$(CC) $(CFLAGS) $(LDFLAGS) $< -o $@
+.PHONY: all clean
+
+BINARIES := seccomp_bpf seccomp_benchmark
+CFLAGS += -Wl,-no-as-needed -Wall
+
+seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
+	$(CC) $(CFLAGS) $(LDFLAGS) -lpthread $< -o $@
+
+TEST_PROGS += $(BINARIES)
+EXTRA_CLEAN := $(BINARIES)
+
+all: $(BINARIES)
diff --git a/tools/testing/selftests/seccomp/seccomp_benchmark.c b/tools/testing/selftests/seccomp/seccomp_benchmark.c
new file mode 100644
index 000000000000..5838c8697ec3
--- /dev/null
+++ b/tools/testing/selftests/seccomp/seccomp_benchmark.c
@@ -0,0 +1,99 @@
+/*
+ * Strictly speaking, this is not a test. But it can report during test
+ * runs so relative performace can be measured.
+ */
+#define _GNU_SOURCE
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include <unistd.h>
+#include <linux/filter.h>
+#include <linux/seccomp.h>
+#include <sys/prctl.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+
+#define ARRAY_SIZE(a)    (sizeof(a) / sizeof(a[0]))
+
+unsigned long long timing(clockid_t clk_id, unsigned long long samples)
+{
+	pid_t pid, ret;
+	unsigned long long i;
+	struct timespec start, finish;
+
+	pid = getpid();
+	assert(clock_gettime(clk_id, &start) == 0);
+	for (i = 0; i < samples; i++) {
+		ret = syscall(__NR_getpid);
+		assert(pid == ret);
+	}
+	assert(clock_gettime(clk_id, &finish) == 0);
+
+	i = finish.tv_sec - start.tv_sec;
+	i *= 1000000000;
+	i += finish.tv_nsec - start.tv_nsec;
+
+	printf("%lu.%09lu - %lu.%09lu = %llu\n",
+		finish.tv_sec, finish.tv_nsec,
+		start.tv_sec, start.tv_nsec,
+		i);
+
+	return i;
+}
+
+unsigned long long calibrate(void)
+{
+	unsigned long long i;
+
+	printf("Calibrating reasonable sample size...\n");
+
+	for (i = 5; ; i++) {
+		unsigned long long samples = 1 << i;
+
+		/* Find something that takes more than 5 seconds to run. */
+		if (timing(CLOCK_REALTIME, samples) / 1000000000ULL > 5)
+			return samples;
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+	unsigned long long samples;
+	unsigned long long native, filtered;
+
+	if (argc > 1)
+		samples = strtoull(argv[1], NULL, 0);
+	else
+		samples = calibrate();
+
+	printf("Benchmarking %llu samples...\n", samples);
+
+	native = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	printf("getpid native: %llu ns\n", native);
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	assert(ret == 0);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	assert(ret == 0);
+
+	filtered = timing(CLOCK_PROCESS_CPUTIME_ID, samples) / samples;
+	printf("getpid RET_ALLOW: %llu ns\n", filtered);
+
+	printf("Estimated seccomp overhead per syscall: %llu ns\n",
+		filtered - native);
+
+	if (filtered == native)
+		printf("Trying running again with more samples.\n");
+
+	return 0;
+}
diff --git a/tools/testing/selftests/seccomp/seccomp_bpf.c b/tools/testing/selftests/seccomp/seccomp_bpf.c
index 4d6f92a9df6b..24dbf634e2dd 100644
--- a/tools/testing/selftests/seccomp/seccomp_bpf.c
+++ b/tools/testing/selftests/seccomp/seccomp_bpf.c
@@ -6,10 +6,18 @@
  */
 
 #include <sys/types.h>
-#include <asm/siginfo.h>
-#define __have_siginfo_t 1
-#define __have_sigval_t 1
-#define __have_sigevent_t 1
+
+/*
+ * glibc 2.26 and later have SIGSYS in siginfo_t. Before that,
+ * we need to use the kernel's siginfo.h file and trick glibc
+ * into accepting it.
+ */
+#if !__GLIBC_PREREQ(2, 26)
+# include <asm/siginfo.h>
+# define __have_siginfo_t 1
+# define __have_sigval_t 1
+# define __have_sigevent_t 1
+#endif
 
 #include <errno.h>
 #include <linux/filter.h>
@@ -68,17 +76,7 @@
 #define SECCOMP_MODE_FILTER 2
 #endif
 
-#ifndef SECCOMP_RET_KILL
-#define SECCOMP_RET_KILL        0x00000000U /* kill the task immediately */
-#define SECCOMP_RET_TRAP        0x00030000U /* disallow and force a SIGSYS */
-#define SECCOMP_RET_ERRNO       0x00050000U /* returns an errno */
-#define SECCOMP_RET_TRACE       0x7ff00000U /* pass to a tracer or disallow */
-#define SECCOMP_RET_ALLOW       0x7fff0000U /* allow */
-
-/* Masks for the return value sections. */
-#define SECCOMP_RET_ACTION      0x7fff0000U
-#define SECCOMP_RET_DATA        0x0000ffffU
-
+#ifndef SECCOMP_RET_ALLOW
 struct seccomp_data {
 	int nr;
 	__u32 arch;
@@ -87,6 +85,70 @@ struct seccomp_data {
 };
 #endif
 
+#ifndef SECCOMP_RET_KILL_PROCESS
+#define SECCOMP_RET_KILL_PROCESS 0x80000000U /* kill the process */
+#define SECCOMP_RET_KILL_THREAD	 0x00000000U /* kill the thread */
+#endif
+#ifndef SECCOMP_RET_KILL
+#define SECCOMP_RET_KILL	 SECCOMP_RET_KILL_THREAD
+#define SECCOMP_RET_TRAP	 0x00030000U /* disallow and force a SIGSYS */
+#define SECCOMP_RET_ERRNO	 0x00050000U /* returns an errno */
+#define SECCOMP_RET_TRACE	 0x7ff00000U /* pass to a tracer or disallow */
+#define SECCOMP_RET_ALLOW	 0x7fff0000U /* allow */
+#endif
+#ifndef SECCOMP_RET_LOG
+#define SECCOMP_RET_LOG		 0x7ffc0000U /* allow after logging */
+#endif
+
+#ifndef __NR_seccomp
+# if defined(__i386__)
+#  define __NR_seccomp 354
+# elif defined(__x86_64__)
+#  define __NR_seccomp 317
+# elif defined(__arm__)
+#  define __NR_seccomp 383
+# elif defined(__aarch64__)
+#  define __NR_seccomp 277
+# elif defined(__hppa__)
+#  define __NR_seccomp 338
+# elif defined(__powerpc__)
+#  define __NR_seccomp 358
+# elif defined(__s390__)
+#  define __NR_seccomp 348
+# else
+#  warning "seccomp syscall number unknown for this architecture"
+#  define __NR_seccomp 0xffff
+# endif
+#endif
+
+#ifndef SECCOMP_SET_MODE_STRICT
+#define SECCOMP_SET_MODE_STRICT 0
+#endif
+
+#ifndef SECCOMP_SET_MODE_FILTER
+#define SECCOMP_SET_MODE_FILTER 1
+#endif
+
+#ifndef SECCOMP_GET_ACTION_AVAIL
+#define SECCOMP_GET_ACTION_AVAIL 2
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_TSYNC
+#define SECCOMP_FILTER_FLAG_TSYNC 1
+#endif
+
+#ifndef SECCOMP_FILTER_FLAG_LOG
+#define SECCOMP_FILTER_FLAG_LOG 2
+#endif
+
+#ifndef seccomp
+int seccomp(unsigned int op, unsigned int flags, void *args)
+{
+	errno = 0;
+	return syscall(__NR_seccomp, op, flags, args);
+}
+#endif
+
 #if __BYTE_ORDER == __LITTLE_ENDIAN
 #define syscall_arg(_n) (offsetof(struct seccomp_data, args[_n]))
 #elif __BYTE_ORDER == __BIG_ENDIAN
@@ -136,7 +198,7 @@ TEST(no_new_privs_support)
 	}
 }
 
-/* Tests kernel support by checking for a copy_from_user() fault on * NULL. */
+/* Tests kernel support by checking for a copy_from_user() fault on NULL. */
 TEST(mode_filter_support)
 {
 	long ret;
@@ -342,6 +404,28 @@ TEST(empty_prog)
 	EXPECT_EQ(EINVAL, errno);
 }
 
+TEST(log_all)
+{
+	struct sock_filter filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_LOG),
+	};
+	struct sock_fprog prog = {
+		.len = (unsigned short)ARRAY_SIZE(filter),
+		.filter = filter,
+	};
+	long ret;
+	pid_t parent = getppid();
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ASSERT_EQ(0, ret);
+
+	/* getppid() should succeed and be logged (no check for logging) */
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+}
+
 TEST_SIGNAL(unknown_ret_is_kill_inside, SIGSYS)
 {
 	struct sock_filter filter[] = {
@@ -520,6 +604,117 @@ TEST_SIGNAL(KILL_one_arg_six, SIGSYS)
 	close(fd);
 }
 
+/* This is a thread task to die via seccomp filter violation. */
+void *kill_thread(void *data)
+{
+	bool die = (bool)data;
+
+	if (die) {
+		prctl(PR_GET_SECCOMP, 0, 0, 0, 0);
+		return (void *)SIBLING_EXIT_FAILURE;
+	}
+
+	return (void *)SIBLING_EXIT_UNKILLED;
+}
+
+/* Prepare a thread that will kill itself or both of us. */
+void kill_thread_or_group(struct __test_metadata *_metadata, bool kill_process)
+{
+	pthread_t thread;
+	void *status;
+	/* Kill only when calling __NR_prctl. */
+	struct sock_filter filter_thread[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_prctl, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL_THREAD),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog_thread = {
+		.len = (unsigned short)ARRAY_SIZE(filter_thread),
+		.filter = filter_thread,
+	};
+	struct sock_filter filter_process[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_prctl, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL_PROCESS),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog prog_process = {
+		.len = (unsigned short)ARRAY_SIZE(filter_process),
+		.filter = filter_process,
+	};
+
+	ASSERT_EQ(0, prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0)) {
+		TH_LOG("Kernel does not support PR_SET_NO_NEW_PRIVS!");
+	}
+
+	ASSERT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER, 0,
+			     kill_process ? &prog_process : &prog_thread));
+
+	/*
+	 * Add the KILL_THREAD rule again to make sure that the KILL_PROCESS
+	 * flag cannot be downgraded by a new filter.
+	 */
+	ASSERT_EQ(0, seccomp(SECCOMP_SET_MODE_FILTER, 0, &prog_thread));
+
+	/* Start a thread that will exit immediately. */
+	ASSERT_EQ(0, pthread_create(&thread, NULL, kill_thread, (void *)false));
+	ASSERT_EQ(0, pthread_join(thread, &status));
+	ASSERT_EQ(SIBLING_EXIT_UNKILLED, (unsigned long)status);
+
+	/* Start a thread that will die immediately. */
+	ASSERT_EQ(0, pthread_create(&thread, NULL, kill_thread, (void *)true));
+	ASSERT_EQ(0, pthread_join(thread, &status));
+	ASSERT_NE(SIBLING_EXIT_FAILURE, (unsigned long)status);
+
+	/*
+	 * If we get here, only the spawned thread died. Let the parent know
+	 * the whole process didn't die (i.e. this thread, the spawner,
+	 * stayed running).
+	 */
+	exit(42);
+}
+
+TEST(KILL_thread)
+{
+	int status;
+	pid_t child_pid;
+
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		kill_thread_or_group(_metadata, false);
+		_exit(38);
+	}
+
+	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
+
+	/* If only the thread was killed, we'll see exit 42. */
+	ASSERT_TRUE(WIFEXITED(status));
+	ASSERT_EQ(42, WEXITSTATUS(status));
+}
+
+TEST(KILL_process)
+{
+	int status;
+	pid_t child_pid;
+
+	child_pid = fork();
+	ASSERT_LE(0, child_pid);
+	if (child_pid == 0) {
+		kill_thread_or_group(_metadata, true);
+		_exit(38);
+	}
+
+	ASSERT_EQ(child_pid, waitpid(child_pid, &status, 0));
+
+	/* If the entire process was killed, we'll see SIGSYS. */
+	ASSERT_TRUE(WIFSIGNALED(status));
+	ASSERT_EQ(SIGSYS, WTERMSIG(status));
+}
+
 /* TODO(wad) add 64-bit versus 32-bit arg tests. */
 TEST(arg_out_of_range)
 {
@@ -541,26 +736,30 @@ TEST(arg_out_of_range)
 	EXPECT_EQ(EINVAL, errno);
 }
 
+#define ERRNO_FILTER(name, errno)					\
+	struct sock_filter _read_filter_##name[] = {			\
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,				\
+			offsetof(struct seccomp_data, nr)),		\
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),	\
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | errno),	\
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),		\
+	};								\
+	struct sock_fprog prog_##name = {				\
+		.len = (unsigned short)ARRAY_SIZE(_read_filter_##name),	\
+		.filter = _read_filter_##name,				\
+	}
+
+/* Make sure basic errno values are correctly passed through a filter. */
 TEST(ERRNO_valid)
 {
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
-			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | E2BIG),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
-	};
-	struct sock_fprog prog = {
-		.len = (unsigned short)ARRAY_SIZE(filter),
-		.filter = filter,
-	};
+	ERRNO_FILTER(valid, E2BIG);
 	long ret;
 	pid_t parent = getppid();
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_valid);
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
@@ -568,26 +767,17 @@ TEST(ERRNO_valid)
 	EXPECT_EQ(E2BIG, errno);
 }
 
+/* Make sure an errno of zero is correctly handled by the arch code. */
 TEST(ERRNO_zero)
 {
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
-			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | 0),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
-	};
-	struct sock_fprog prog = {
-		.len = (unsigned short)ARRAY_SIZE(filter),
-		.filter = filter,
-	};
+	ERRNO_FILTER(zero, 0);
 	long ret;
 	pid_t parent = getppid();
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_zero);
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
@@ -595,26 +785,21 @@ TEST(ERRNO_zero)
 	EXPECT_EQ(0, read(0, NULL, 0));
 }
 
+/*
+ * The SECCOMP_RET_DATA mask is 16 bits wide, but errno is smaller.
+ * This tests that the errno value gets capped correctly, fixed by
+ * 580c57f10768 ("seccomp: cap SECCOMP_RET_ERRNO data to MAX_ERRNO").
+ */
 TEST(ERRNO_capped)
 {
-	struct sock_filter filter[] = {
-		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
-			offsetof(struct seccomp_data, nr)),
-		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_read, 0, 1),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ERRNO | 4096),
-		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
-	};
-	struct sock_fprog prog = {
-		.len = (unsigned short)ARRAY_SIZE(filter),
-		.filter = filter,
-	};
+	ERRNO_FILTER(capped, 4096);
 	long ret;
 	pid_t parent = getppid();
 
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
-	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_capped);
 	ASSERT_EQ(0, ret);
 
 	EXPECT_EQ(parent, syscall(__NR_getppid));
@@ -622,6 +807,37 @@ TEST(ERRNO_capped)
 	EXPECT_EQ(4095, errno);
 }
 
+/*
+ * Filters are processed in reverse order: last applied is executed first.
+ * Since only the SECCOMP_RET_ACTION mask is tested for return values, the
+ * SECCOMP_RET_DATA mask results will follow the most recently applied
+ * matching filter return (and not the lowest or highest value).
+ */
+TEST(ERRNO_order)
+{
+	ERRNO_FILTER(first,  11);
+	ERRNO_FILTER(second, 13);
+	ERRNO_FILTER(third,  12);
+	long ret;
+	pid_t parent = getppid();
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_first);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_second);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &prog_third);
+	ASSERT_EQ(0, ret);
+
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	EXPECT_EQ(-1, read(0, NULL, 0));
+	EXPECT_EQ(12, errno);
+}
+
 FIXTURE_DATA(TRAP) {
 	struct sock_fprog prog;
 };
@@ -676,7 +892,7 @@ TEST_F_SIGNAL(TRAP, ign, SIGSYS)
 	syscall(__NR_getpid);
 }
 
-static struct siginfo TRAP_info;
+static siginfo_t TRAP_info;
 static volatile int TRAP_nr;
 static void TRAP_action(int nr, siginfo_t *info, void *void_context)
 {
@@ -735,6 +951,7 @@ TEST_F(TRAP, handler)
 
 FIXTURE_DATA(precedence) {
 	struct sock_fprog allow;
+	struct sock_fprog log;
 	struct sock_fprog trace;
 	struct sock_fprog error;
 	struct sock_fprog trap;
@@ -746,6 +963,13 @@ FIXTURE_SETUP(precedence)
 	struct sock_filter allow_insns[] = {
 		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
 	};
+	struct sock_filter log_insns[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 1, 0),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_LOG),
+	};
 	struct sock_filter trace_insns[] = {
 		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
 			offsetof(struct seccomp_data, nr)),
@@ -782,6 +1006,7 @@ FIXTURE_SETUP(precedence)
 	memcpy(self->_x.filter, &_x##_insns, sizeof(_x##_insns)); \
 	self->_x.len = (unsigned short)ARRAY_SIZE(_x##_insns)
 	FILTER_ALLOC(allow);
+	FILTER_ALLOC(log);
 	FILTER_ALLOC(trace);
 	FILTER_ALLOC(error);
 	FILTER_ALLOC(trap);
@@ -792,6 +1017,7 @@ FIXTURE_TEARDOWN(precedence)
 {
 #define FILTER_FREE(_x) if (self->_x.filter) free(self->_x.filter)
 	FILTER_FREE(allow);
+	FILTER_FREE(log);
 	FILTER_FREE(trace);
 	FILTER_FREE(error);
 	FILTER_FREE(trap);
@@ -809,6 +1035,8 @@ TEST_F(precedence, allow_ok)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -833,6 +1061,8 @@ TEST_F_SIGNAL(precedence, kill_is_highest, SIGSYS)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -864,6 +1094,8 @@ TEST_F_SIGNAL(precedence, kill_is_highest_in_any_order, SIGSYS)
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trap);
@@ -885,6 +1117,8 @@ TEST_F_SIGNAL(precedence, trap_is_second, SIGSYS)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -910,6 +1144,8 @@ TEST_F_SIGNAL(precedence, trap_is_second_in_any_order, SIGSYS)
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trap);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -931,6 +1167,8 @@ TEST_F(precedence, errno_is_third)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
@@ -949,6 +1187,8 @@ TEST_F(precedence, errno_is_third_in_any_order)
 	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
 	ASSERT_EQ(0, ret);
 
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->error);
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
@@ -971,6 +1211,8 @@ TEST_F(precedence, trace_is_fourth)
 
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->trace);
 	ASSERT_EQ(0, ret);
 	/* Should work just fine. */
@@ -992,12 +1234,54 @@ TEST_F(precedence, trace_is_fourth_in_any_order)
 	ASSERT_EQ(0, ret);
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
 	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
 	/* Should work just fine. */
 	EXPECT_EQ(parent, syscall(__NR_getppid));
 	/* No ptracer */
 	EXPECT_EQ(-1, syscall(__NR_getpid));
 }
 
+TEST_F(precedence, log_is_fifth)
+{
+	pid_t mypid, parent;
+	long ret;
+
+	mypid = getpid();
+	parent = getppid();
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
+	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
+	/* Should work just fine. */
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	/* Should also work just fine */
+	EXPECT_EQ(mypid, syscall(__NR_getpid));
+}
+
+TEST_F(precedence, log_is_fifth_in_any_order)
+{
+	pid_t mypid, parent;
+	long ret;
+
+	mypid = getpid();
+	parent = getppid();
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->log);
+	ASSERT_EQ(0, ret);
+	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->allow);
+	ASSERT_EQ(0, ret);
+	/* Should work just fine. */
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	/* Should also work just fine */
+	EXPECT_EQ(mypid, syscall(__NR_getpid));
+}
+
 #ifndef PTRACE_O_TRACESECCOMP
 #define PTRACE_O_TRACESECCOMP	0x00000080
 #endif
@@ -1262,6 +1546,13 @@ TEST_F(TRACE_poke, getpid_runs_normally)
 # error "Do not know how to find your architecture's registers and syscalls"
 #endif
 
+/* When the syscall return can't be changed, stub out the tests for it. */
+#ifdef SYSCALL_NUM_RET_SHARE_REG
+# define EXPECT_SYSCALL_RETURN(val, action)	EXPECT_EQ(-1, action)
+#else
+# define EXPECT_SYSCALL_RETURN(val, action)	EXPECT_EQ(val, action)
+#endif
+
 /* Use PTRACE_GETREGS and PTRACE_SETREGS when available. This is useful for
  * architectures without HAVE_ARCH_TRACEHOOK (e.g. User-mode Linux).
  */
@@ -1357,7 +1648,7 @@ void change_syscall(struct __test_metadata *_metadata,
 #ifdef SYSCALL_NUM_RET_SHARE_REG
 		TH_LOG("Can't modify syscall return on this architecture");
 #else
-		regs.SYSCALL_RET = 1;
+		regs.SYSCALL_RET = EPERM;
 #endif
 
 #ifdef HAVE_GETREGS
@@ -1426,6 +1717,8 @@ void tracer_ptrace(struct __test_metadata *_metadata, pid_t tracee,
 
 	if (nr == __NR_getpid)
 		change_syscall(_metadata, tracee, __NR_getppid);
+	if (nr == __NR_open)
+		change_syscall(_metadata, tracee, -1);
 }
 
 FIXTURE_DATA(TRACE_syscall) {
@@ -1480,6 +1773,28 @@ FIXTURE_TEARDOWN(TRACE_syscall)
 		free(self->prog.filter);
 }
 
+TEST_F(TRACE_syscall, ptrace_syscall_redirected)
+{
+	/* Swap SECCOMP_RET_TRACE tracer for PTRACE_SYSCALL tracer. */
+	teardown_trace_fixture(_metadata, self->tracer);
+	self->tracer = setup_trace_fixture(_metadata, tracer_ptrace, NULL,
+					   true);
+
+	/* Tracer will redirect getpid to getppid. */
+	EXPECT_NE(self->mypid, syscall(__NR_getpid));
+}
+
+TEST_F(TRACE_syscall, ptrace_syscall_dropped)
+{
+	/* Swap SECCOMP_RET_TRACE tracer for PTRACE_SYSCALL tracer. */
+	teardown_trace_fixture(_metadata, self->tracer);
+	self->tracer = setup_trace_fixture(_metadata, tracer_ptrace, NULL,
+					   true);
+
+	/* Tracer should skip the open syscall, resulting in EPERM. */
+	EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_open));
+}
+
 TEST_F(TRACE_syscall, syscall_allowed)
 {
 	long ret;
@@ -1520,13 +1835,8 @@ TEST_F(TRACE_syscall, syscall_dropped)
 	ret = prctl(PR_SET_SECCOMP, SECCOMP_MODE_FILTER, &self->prog, 0, 0);
 	ASSERT_EQ(0, ret);
 
-#ifdef SYSCALL_NUM_RET_SHARE_REG
-	/* gettid has been skipped */
-	EXPECT_EQ(-1, syscall(__NR_gettid));
-#else
 	/* gettid has been skipped and an altered return value stored. */
-	EXPECT_EQ(1, syscall(__NR_gettid));
-#endif
+	EXPECT_SYSCALL_RETURN(EPERM, syscall(__NR_gettid));
 	EXPECT_NE(self->mytid, syscall(__NR_gettid));
 }
 
@@ -1557,6 +1867,7 @@ TEST_F(TRACE_syscall, skip_after_RET_TRACE)
 	ASSERT_EQ(0, ret);
 
 	/* Tracer will redirect getpid to getppid, and we should see EPERM. */
+	errno = 0;
 	EXPECT_EQ(-1, syscall(__NR_getpid));
 	EXPECT_EQ(EPERM, errno);
 }
@@ -1654,47 +1965,6 @@ TEST_F_SIGNAL(TRACE_syscall, kill_after_ptrace, SIGSYS)
 	EXPECT_NE(self->mypid, syscall(__NR_getpid));
 }
 
-#ifndef __NR_seccomp
-# if defined(__i386__)
-#  define __NR_seccomp 354
-# elif defined(__x86_64__)
-#  define __NR_seccomp 317
-# elif defined(__arm__)
-#  define __NR_seccomp 383
-# elif defined(__aarch64__)
-#  define __NR_seccomp 277
-# elif defined(__hppa__)
-#  define __NR_seccomp 338
-# elif defined(__powerpc__)
-#  define __NR_seccomp 358
-# elif defined(__s390__)
-#  define __NR_seccomp 348
-# else
-#  warning "seccomp syscall number unknown for this architecture"
-#  define __NR_seccomp 0xffff
-# endif
-#endif
-
-#ifndef SECCOMP_SET_MODE_STRICT
-#define SECCOMP_SET_MODE_STRICT 0
-#endif
-
-#ifndef SECCOMP_SET_MODE_FILTER
-#define SECCOMP_SET_MODE_FILTER 1
-#endif
-
-#ifndef SECCOMP_FILTER_FLAG_TSYNC
-#define SECCOMP_FILTER_FLAG_TSYNC 1
-#endif
-
-#ifndef seccomp
-int seccomp(unsigned int op, unsigned int flags, void *args)
-{
-	errno = 0;
-	return syscall(__NR_seccomp, op, flags, args);
-}
-#endif
-
 TEST(seccomp_syscall)
 {
 	struct sock_filter filter[] = {
@@ -1783,6 +2053,67 @@ TEST(seccomp_syscall_mode_lock)
 	}
 }
 
+/*
+ * Test detection of known and unknown filter flags. Userspace needs to be able
+ * to check if a filter flag is supported by the current kernel and a good way
+ * of doing that is by attempting to enter filter mode, with the flag bit in
+ * question set, and a NULL pointer for the _args_ parameter. EFAULT indicates
+ * that the flag is valid and EINVAL indicates that the flag is invalid.
+ */
+TEST(detect_seccomp_filter_flags)
+{
+	unsigned int flags[] = { SECCOMP_FILTER_FLAG_TSYNC,
+				 SECCOMP_FILTER_FLAG_LOG };
+	unsigned int flag, all_flags;
+	int i;
+	long ret;
+
+	/* Test detection of known-good filter flags */
+	for (i = 0, all_flags = 0; i < ARRAY_SIZE(flags); i++) {
+		flag = flags[i];
+		ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+		ASSERT_NE(ENOSYS, errno) {
+			TH_LOG("Kernel does not support seccomp syscall!");
+		}
+		EXPECT_EQ(-1, ret);
+		EXPECT_EQ(EFAULT, errno) {
+			TH_LOG("Failed to detect that a known-good filter flag (0x%X) is supported!",
+			       flag);
+		}
+
+		all_flags |= flag;
+	}
+
+	/* Test detection of all known-good filter flags */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, all_flags, NULL);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EFAULT, errno) {
+		TH_LOG("Failed to detect that all known-good filter flags (0x%X) are supported!",
+		       all_flags);
+	}
+
+	/* Test detection of an unknown filter flag */
+	flag = -1;
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno) {
+		TH_LOG("Failed to detect that an unknown filter flag (0x%X) is unsupported!",
+		       flag);
+	}
+
+	/*
+	 * Test detection of an unknown filter flag that may simply need to be
+	 * added to this test
+	 */
+	flag = flags[ARRAY_SIZE(flags) - 1] << 1;
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, flag, NULL);
+	EXPECT_EQ(-1, ret);
+	EXPECT_EQ(EINVAL, errno) {
+		TH_LOG("Failed to detect that an unknown filter flag (0x%X) is unsupported! Does a new flag need to be added to this test?",
+		       flag);
+	}
+}
+
 TEST(TSYNC_first)
 {
 	struct sock_filter filter[] = {
@@ -2421,6 +2752,99 @@ TEST(syscall_restart)
 		_metadata->passed = 0;
 }
 
+TEST_SIGNAL(filter_flag_log, SIGSYS)
+{
+	struct sock_filter allow_filter[] = {
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_filter kill_filter[] = {
+		BPF_STMT(BPF_LD|BPF_W|BPF_ABS,
+			offsetof(struct seccomp_data, nr)),
+		BPF_JUMP(BPF_JMP|BPF_JEQ|BPF_K, __NR_getpid, 0, 1),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_KILL),
+		BPF_STMT(BPF_RET|BPF_K, SECCOMP_RET_ALLOW),
+	};
+	struct sock_fprog allow_prog = {
+		.len = (unsigned short)ARRAY_SIZE(allow_filter),
+		.filter = allow_filter,
+	};
+	struct sock_fprog kill_prog = {
+		.len = (unsigned short)ARRAY_SIZE(kill_filter),
+		.filter = kill_filter,
+	};
+	long ret;
+	pid_t parent = getppid();
+
+	ret = prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0);
+	ASSERT_EQ(0, ret);
+
+	/* Verify that the FILTER_FLAG_LOG flag isn't accepted in strict mode */
+	ret = seccomp(SECCOMP_SET_MODE_STRICT, SECCOMP_FILTER_FLAG_LOG,
+		      &allow_prog);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
+	EXPECT_NE(0, ret) {
+		TH_LOG("Kernel accepted FILTER_FLAG_LOG flag in strict mode!");
+	}
+	EXPECT_EQ(EINVAL, errno) {
+		TH_LOG("Kernel returned unexpected errno for FILTER_FLAG_LOG flag in strict mode!");
+	}
+
+	/* Verify that a simple, permissive filter can be added with no flags */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, 0, &allow_prog);
+	EXPECT_EQ(0, ret);
+
+	/* See if the same filter can be added with the FILTER_FLAG_LOG flag */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_LOG,
+		      &allow_prog);
+	ASSERT_NE(EINVAL, errno) {
+		TH_LOG("Kernel does not support the FILTER_FLAG_LOG flag!");
+	}
+	EXPECT_EQ(0, ret);
+
+	/* Ensure that the kill filter works with the FILTER_FLAG_LOG flag */
+	ret = seccomp(SECCOMP_SET_MODE_FILTER, SECCOMP_FILTER_FLAG_LOG,
+		      &kill_prog);
+	EXPECT_EQ(0, ret);
+
+	EXPECT_EQ(parent, syscall(__NR_getppid));
+	/* getpid() should never return. */
+	EXPECT_EQ(0, syscall(__NR_getpid));
+}
+
+TEST(get_action_avail)
+{
+	__u32 actions[] = { SECCOMP_RET_KILL_THREAD, SECCOMP_RET_TRAP,
+			    SECCOMP_RET_ERRNO, SECCOMP_RET_TRACE,
+			    SECCOMP_RET_LOG,   SECCOMP_RET_ALLOW };
+	__u32 unknown_action = 0x10000000U;
+	int i;
+	long ret;
+
+	ret = seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &actions[0]);
+	ASSERT_NE(ENOSYS, errno) {
+		TH_LOG("Kernel does not support seccomp syscall!");
+	}
+	ASSERT_NE(EINVAL, errno) {
+		TH_LOG("Kernel does not support SECCOMP_GET_ACTION_AVAIL operation!");
+	}
+	EXPECT_EQ(ret, 0);
+
+	for (i = 0; i < ARRAY_SIZE(actions); i++) {
+		ret = seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &actions[i]);
+		EXPECT_EQ(ret, 0) {
+			TH_LOG("Expected action (0x%X) not available!",
+			       actions[i]);
+		}
+	}
+
+	/* Check that an unknown action is handled properly (EOPNOTSUPP) */
+	ret = seccomp(SECCOMP_GET_ACTION_AVAIL, 0, &unknown_action);
+	EXPECT_EQ(ret, -1);
+	EXPECT_EQ(errno, EOPNOTSUPP);
+}
+
 /*
  * TODO:
  * - add microbenchmarks
@@ -2429,6 +2853,8 @@ TEST(syscall_restart)
  * - endianness checking when appropriate
  * - 64-bit arg prodding
  * - arch value testing (x86 modes especially)
+ * - verify that FILTER_FLAG_LOG filters generate log messages
+ * - verify that RET_LOG generates log messages
  * - ...
  */
 
diff --git a/tools/testing/selftests/sigaltstack/sas.c b/tools/testing/selftests/sigaltstack/sas.c
index 7d406c3973ba..228c2ae47687 100644
--- a/tools/testing/selftests/sigaltstack/sas.c
+++ b/tools/testing/selftests/sigaltstack/sas.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Stas Sergeev <stsp@users.sourceforge.net>
  *
@@ -39,7 +40,11 @@ void my_usr1(int sig, siginfo_t *si, void *u)
 	stack_t stk;
 	struct stk_data *p;
 
+#if __s390x__
+	register unsigned long sp asm("%15");
+#else
 	register unsigned long sp asm("sp");
+#endif
 
 	if (sp < (unsigned long)sstack ||
 			sp >= (unsigned long)sstack + SIGSTKSZ) {
diff --git a/tools/testing/selftests/splice/Makefile b/tools/testing/selftests/splice/Makefile
index 7e1187e007fa..e519b159b60d 100644
--- a/tools/testing/selftests/splice/Makefile
+++ b/tools/testing/selftests/splice/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 TEST_PROGS := default_file_splice_read.sh
 TEST_GEN_PROGS_EXTENDED := default_file_splice_read
 
diff --git a/tools/testing/selftests/splice/default_file_splice_read.c b/tools/testing/selftests/splice/default_file_splice_read.c
index 01dd6091554c..a3c6e5672e09 100644
--- a/tools/testing/selftests/splice/default_file_splice_read.c
+++ b/tools/testing/selftests/splice/default_file_splice_read.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <fcntl.h>
 
diff --git a/tools/testing/selftests/splice/default_file_splice_read.sh b/tools/testing/selftests/splice/default_file_splice_read.sh
index 1ea2adeabc94..490db5a2e435 100755
--- a/tools/testing/selftests/splice/default_file_splice_read.sh
+++ b/tools/testing/selftests/splice/default_file_splice_read.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 n=`./default_file_splice_read </dev/null | wc -c`
 
 test "$n" = 0 && exit 0
diff --git a/tools/testing/selftests/static_keys/test_static_keys.sh b/tools/testing/selftests/static_keys/test_static_keys.sh
index 1261e3fa1e3a..24cff498b31a 100755
--- a/tools/testing/selftests/static_keys/test_static_keys.sh
+++ b/tools/testing/selftests/static_keys/test_static_keys.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs static keys kernel module tests
 
 if /sbin/modprobe -q test_static_key_base; then
diff --git a/tools/testing/selftests/sync/Makefile b/tools/testing/selftests/sync/Makefile
index 4981c6b6d050..b3c8ba3cb668 100644
--- a/tools/testing/selftests/sync/Makefile
+++ b/tools/testing/selftests/sync/Makefile
@@ -1,13 +1,18 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -O2 -g -std=gnu89 -pthread -Wall -Wextra
 CFLAGS += -I../../../../usr/include/
 LDFLAGS += -pthread
 
-TEST_PROGS = sync_test
-
-all: $(TEST_PROGS)
+.PHONY: all clean
 
 include ../lib.mk
 
+# lib.mk TEST_CUSTOM_PROGS var is for custom tests that need special
+# build rules. lib.mk will run and install them.
+
+TEST_CUSTOM_PROGS := $(OUTPUT)/sync_test
+all: $(TEST_CUSTOM_PROGS)
+
 OBJS = sync_test.o sync.o
 
 TESTS += sync_alloc.o
@@ -18,6 +23,16 @@ TESTS += sync_stress_parallelism.o
 TESTS += sync_stress_consumer.o
 TESTS += sync_stress_merge.o
 
-sync_test: $(OBJS) $(TESTS)
+OBJS := $(patsubst %,$(OUTPUT)/%,$(OBJS))
+TESTS := $(patsubst %,$(OUTPUT)/%,$(TESTS))
+
+$(TEST_CUSTOM_PROGS): $(TESTS) $(OBJS)
+	$(CC) -o $(TEST_CUSTOM_PROGS) $(OBJS) $(TESTS) $(CFLAGS) $(LDFLAGS)
+
+$(OBJS): $(OUTPUT)/%.o: %.c
+	$(CC) -c $^ -o $@
+
+$(TESTS): $(OUTPUT)/%.o: %.c
+	$(CC) -c $^ -o $@
 
-EXTRA_CLEAN := sync_test $(OBJS) $(TESTS)
+EXTRA_CLEAN := $(TEST_CUSTOM_PROGS) $(OBJS) $(TESTS)
diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json b/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json
index c727b96a59b0..5fa02d86b35f 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/filters/tests.json
@@ -17,5 +17,26 @@
         "teardown": [
             "$TC qdisc del dev $DEV1 ingress"
         ]
+    },
+    {
+        "id": "d052",
+        "name": "Add 1M filters with the same action",
+        "category": [
+            "filter",
+            "flower"
+        ],
+        "setup": [
+            "$TC qdisc add dev $DEV2 ingress",
+            "./tdc_batch.py $DEV2 $BATCH_FILE --share_action -n 1000000"
+        ],
+        "cmdUnderTest": "$TC -b $BATCH_FILE",
+        "expExitCode": "0",
+        "verifyCmd": "$TC actions list action gact",
+        "matchPattern": "action order 0: gact action drop.*index 1 ref 1000000 bind 1000000",
+        "matchCount": "1",
+        "teardown": [
+            "$TC qdisc del dev $DEV2 ingress",
+            "/bin/rm $BATCH_FILE"
+        ]
     }
-]
\ No newline at end of file
+]
diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py
index cd61b7844c0d..b8462e1b74f9 100755
--- a/tools/testing/selftests/tc-testing/tdc.py
+++ b/tools/testing/selftests/tc-testing/tdc.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: GPL-2.0
 
 """
 tdc.py - Linux tc (Traffic Control) unit test driver
@@ -88,7 +89,7 @@ def prepare_env(cmdlist):
             exit(1)
 
 
-def test_runner(filtered_tests):
+def test_runner(filtered_tests, args):
     """
     Driver function for the unit tests.
 
@@ -105,6 +106,8 @@ def test_runner(filtered_tests):
     for tidx in testlist:
         result = True
         tresult = ""
+        if "flower" in tidx["category"] and args.device == None:
+            continue
         print("Test " + tidx["id"] + ": " + tidx["name"])
         prepare_env(tidx["setup"])
         (p, procout) = exec_cmd(tidx["cmdUnderTest"])
@@ -150,7 +153,11 @@ def ns_create():
         exec_cmd(cmd, False)
         cmd = 'ip link set $DEV0 up'
         exec_cmd(cmd, False)
-        cmd = 'ip -s $NS link set $DEV1 up'
+        cmd = 'ip -n $NS link set $DEV1 up'
+        exec_cmd(cmd, False)
+        cmd = 'ip link set $DEV2 netns $NS'
+        exec_cmd(cmd, False)
+        cmd = 'ip -n $NS link set $DEV2 up'
         exec_cmd(cmd, False)
 
 
@@ -211,7 +218,8 @@ def set_args(parser):
                         help='Execute the single test case with specified ID')
     parser.add_argument('-i', '--id', action='store_true', dest='gen_id',
                         help='Generate ID numbers for new test cases')
-    return parser
+    parser.add_argument('-d', '--device',
+                        help='Execute the test case in flower category')
     return parser
 
 
@@ -225,6 +233,8 @@ def check_default_settings(args):
 
     if args.path != None:
          NAMES['TC'] = args.path
+    if args.device != None:
+         NAMES['DEV2'] = args.device
     if not os.path.isfile(NAMES['TC']):
         print("The specified tc path " + NAMES['TC'] + " does not exist.")
         exit(1)
@@ -381,14 +391,17 @@ def set_operation_mode(args):
             if (len(alltests) == 0):
                 print("Cannot find a test case with ID matching " + target_id)
                 exit(1)
-        catresults = test_runner(alltests)
+        catresults = test_runner(alltests, args)
         print("All test results: " + "\n\n" + catresults)
     elif (len(target_category) > 0):
+        if (target_category == "flower") and args.device == None:
+            print("Please specify a NIC device (-d) to run category flower")
+            exit(1)
         if (target_category not in ucat):
             print("Specified category is not present in this file.")
             exit(1)
         else:
-            catresults = test_runner(testcases[target_category])
+            catresults = test_runner(testcases[target_category], args)
             print("Category " + target_category + "\n\n" + catresults)
 
     ns_destroy()
diff --git a/tools/testing/selftests/tc-testing/tdc_batch.py b/tools/testing/selftests/tc-testing/tdc_batch.py
new file mode 100755
index 000000000000..707c6bfef689
--- /dev/null
+++ b/tools/testing/selftests/tc-testing/tdc_batch.py
@@ -0,0 +1,62 @@
+#!/usr/bin/python3
+
+"""
+tdc_batch.py - a script to generate TC batch file
+
+Copyright (C) 2017 Chris Mi <chrism@mellanox.com>
+"""
+
+import argparse
+
+parser = argparse.ArgumentParser(description='TC batch file generator')
+parser.add_argument("device", help="device name")
+parser.add_argument("file", help="batch file name")
+parser.add_argument("-n", "--number", type=int,
+                    help="how many lines in batch file")
+parser.add_argument("-o", "--skip_sw",
+                    help="skip_sw (offload), by default skip_hw",
+                    action="store_true")
+parser.add_argument("-s", "--share_action",
+                    help="all filters share the same action",
+                    action="store_true")
+parser.add_argument("-p", "--prio",
+                    help="all filters have different prio",
+                    action="store_true")
+args = parser.parse_args()
+
+device = args.device
+file = open(args.file, 'w')
+
+number = 1
+if args.number:
+    number = args.number
+
+skip = "skip_hw"
+if args.skip_sw:
+    skip = "skip_sw"
+
+share_action = ""
+if args.share_action:
+    share_action = "index 1"
+
+prio = "prio 1"
+if args.prio:
+    prio = ""
+    if number > 0x4000:
+        number = 0x4000
+
+index = 0
+for i in range(0x100):
+    for j in range(0x100):
+        for k in range(0x100):
+            mac = ("%02x:%02x:%02x" % (i, j, k))
+            src_mac = "e4:11:00:" + mac
+            dst_mac = "e4:12:00:" + mac
+            cmd = ("filter add dev %s %s protocol ip parent ffff: flower %s "
+                   "src_mac %s dst_mac %s action drop %s" %
+                   (device, prio, skip, src_mac, dst_mac, share_action))
+            file.write("%s\n" % cmd)
+            index += 1
+            if index >= number:
+                file.close()
+                exit(0)
diff --git a/tools/testing/selftests/tc-testing/tdc_config.py b/tools/testing/selftests/tc-testing/tdc_config.py
index 01087375a7c3..eb188c729dd6 100644
--- a/tools/testing/selftests/tc-testing/tdc_config.py
+++ b/tools/testing/selftests/tc-testing/tdc_config.py
@@ -1,4 +1,5 @@
 """
+# SPDX-License-Identifier: GPL-2.0
 tdc_config.py - tdc user-specified values
 
 Copyright (C) 2017 Lucas Bates <lucasb@mojatatu.com>
@@ -12,6 +13,8 @@ NAMES = {
           # Name of veth devices to be created for the namespace
           'DEV0': 'v0p0',
           'DEV1': 'v0p1',
+          'DEV2': '',
+          'BATCH_FILE': './batch.txt',
           # Name of the namespace to use
           'NS': 'tcut'
         }
diff --git a/tools/testing/selftests/tc-testing/tdc_helper.py b/tools/testing/selftests/tc-testing/tdc_helper.py
index c3254f861fb2..ccf2d2458703 100644
--- a/tools/testing/selftests/tc-testing/tdc_helper.py
+++ b/tools/testing/selftests/tc-testing/tdc_helper.py
@@ -1,4 +1,5 @@
 """
+# SPDX-License-Identifier: GPL-2.0
 tdc_helper.py - tdc helper functions
 
 Copyright (C) 2017 Lucas Bates <lucasb@mojatatu.com>
diff --git a/tools/testing/selftests/timers/Makefile b/tools/testing/selftests/timers/Makefile
index ae4593115408..3496680981f2 100644
--- a/tools/testing/selftests/timers/Makefile
+++ b/tools/testing/selftests/timers/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CFLAGS += -O3 -Wl,-no-as-needed -Wall
 LDFLAGS += -lrt -lpthread -lm
 
diff --git a/tools/testing/selftests/timers/set-timer-lat.c b/tools/testing/selftests/timers/set-timer-lat.c
index 9c92b7bd5641..50da45437daa 100644
--- a/tools/testing/selftests/timers/set-timer-lat.c
+++ b/tools/testing/selftests/timers/set-timer-lat.c
@@ -143,7 +143,8 @@ int setup_timer(int clock_id, int flags, int interval, timer_t *tm1)
 			printf("%-22s %s missing CAP_WAKE_ALARM?    : [UNSUPPORTED]\n",
 					clockstring(clock_id),
 					flags ? "ABSTIME":"RELTIME");
-			return 0;
+			/* Indicate timer isn't set, so caller doesn't wait */
+			return 1;
 		}
 		printf("%s - timer_create() failed\n", clockstring(clock_id));
 		return -1;
@@ -213,8 +214,9 @@ int do_timer(int clock_id, int flags)
 	int err;
 
 	err = setup_timer(clock_id, flags, interval, &tm1);
+	/* Unsupported case - return 0 to not fail the test */
 	if (err)
-		return err;
+		return err == 1 ? 0 : err;
 
 	while (alarmcount < 5)
 		sleep(1);
@@ -228,18 +230,17 @@ int do_timer_oneshot(int clock_id, int flags)
 	timer_t tm1;
 	const int interval = 0;
 	struct timeval timeout;
-	fd_set fds;
 	int err;
 
 	err = setup_timer(clock_id, flags, interval, &tm1);
+	/* Unsupported case - return 0 to not fail the test */
 	if (err)
-		return err;
+		return err == 1 ? 0 : err;
 
 	memset(&timeout, 0, sizeof(timeout));
 	timeout.tv_sec = 5;
-	FD_ZERO(&fds);
 	do {
-		err = select(FD_SETSIZE, &fds, NULL, NULL, &timeout);
+		err = select(0, NULL, NULL, NULL, &timeout);
 	} while (err == -1 && errno == EINTR);
 
 	timer_delete(tm1);
diff --git a/tools/testing/selftests/user/test_user_copy.sh b/tools/testing/selftests/user/test_user_copy.sh
index 350107f40c1d..d60506fc77f8 100755
--- a/tools/testing/selftests/user/test_user_copy.sh
+++ b/tools/testing/selftests/user/test_user_copy.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 # Runs copy_to/from_user infrastructure using test_user_copy kernel module
 
 if /sbin/modprobe -q test_user_copy; then
diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile
index 706b68b1c372..3d5a62ff7d31 100644
--- a/tools/testing/selftests/vDSO/Makefile
+++ b/tools/testing/selftests/vDSO/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 ifndef CROSS_COMPILE
 CFLAGS := -std=gnu99
 CFLAGS_vdso_standalone_test_x86 := -nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector
diff --git a/tools/testing/selftests/vm/Makefile b/tools/testing/selftests/vm/Makefile
index cbb29e41ef2b..e49eca1915f8 100644
--- a/tools/testing/selftests/vm/Makefile
+++ b/tools/testing/selftests/vm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for vm selftests
 
 ifndef OUTPUT
diff --git a/tools/testing/selftests/vm/compaction_test.c b/tools/testing/selftests/vm/compaction_test.c
index 6d1437f895b8..a65b016d4c13 100644
--- a/tools/testing/selftests/vm/compaction_test.c
+++ b/tools/testing/selftests/vm/compaction_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  *
  * A test for the patch "Allow compaction of unevictable pages".
diff --git a/tools/testing/selftests/vm/hugepage-mmap.c b/tools/testing/selftests/vm/hugepage-mmap.c
index a10f310d2362..93f9e7b81331 100644
--- a/tools/testing/selftests/vm/hugepage-mmap.c
+++ b/tools/testing/selftests/vm/hugepage-mmap.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * hugepage-mmap:
  *
diff --git a/tools/testing/selftests/vm/hugepage-shm.c b/tools/testing/selftests/vm/hugepage-shm.c
index 0d0ef4fc0c04..e2527f32005b 100644
--- a/tools/testing/selftests/vm/hugepage-shm.c
+++ b/tools/testing/selftests/vm/hugepage-shm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * hugepage-shm:
  *
diff --git a/tools/testing/selftests/vm/map_hugetlb.c b/tools/testing/selftests/vm/map_hugetlb.c
index 77687ab59f77..9b777fa95f09 100644
--- a/tools/testing/selftests/vm/map_hugetlb.c
+++ b/tools/testing/selftests/vm/map_hugetlb.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Example of using hugepage memory in a user application using the mmap
  * system call with MAP_HUGETLB flag.  Before running this program make
diff --git a/tools/testing/selftests/vm/mlock-random-test.c b/tools/testing/selftests/vm/mlock-random-test.c
index 83de4f58d262..ff4d72eb74b9 100644
--- a/tools/testing/selftests/vm/mlock-random-test.c
+++ b/tools/testing/selftests/vm/mlock-random-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * It tests the mlock/mlock2() when they are invoked
  * on randomly memory region.
diff --git a/tools/testing/selftests/vm/mlock2-tests.c b/tools/testing/selftests/vm/mlock2-tests.c
index e5dbc87b4297..4997b9222cfa 100644
--- a/tools/testing/selftests/vm/mlock2-tests.c
+++ b/tools/testing/selftests/vm/mlock2-tests.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <sys/mman.h>
 #include <stdint.h>
diff --git a/tools/testing/selftests/vm/mlock2.h b/tools/testing/selftests/vm/mlock2.h
index 7ee062929d3e..2a6e76c226bc 100644
--- a/tools/testing/selftests/vm/mlock2.h
+++ b/tools/testing/selftests/vm/mlock2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <syscall.h>
 #include <errno.h>
 #include <stdio.h>
diff --git a/tools/testing/selftests/vm/on-fault-limit.c b/tools/testing/selftests/vm/on-fault-limit.c
index 7f96a5c2e292..634d87dfb2a4 100644
--- a/tools/testing/selftests/vm/on-fault-limit.c
+++ b/tools/testing/selftests/vm/on-fault-limit.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/mman.h>
 #include <stdio.h>
 #include <unistd.h>
diff --git a/tools/testing/selftests/vm/run_vmtests b/tools/testing/selftests/vm/run_vmtests
index 07548a1fa901..cc826326de87 100755
--- a/tools/testing/selftests/vm/run_vmtests
+++ b/tools/testing/selftests/vm/run_vmtests
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 #please run as root
 
 #we need 256M, below is the size in kB
diff --git a/tools/testing/selftests/vm/thuge-gen.c b/tools/testing/selftests/vm/thuge-gen.c
index 88a2ab535e01..361ef7192cc6 100644
--- a/tools/testing/selftests/vm/thuge-gen.c
+++ b/tools/testing/selftests/vm/thuge-gen.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Test selecting other page sizes for mmap/shmget.
 
    Before running this huge pages for each huge page size must have been
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c
index a2c53a3d223d..de2f9ec8a87f 100644
--- a/tools/testing/selftests/vm/userfaultfd.c
+++ b/tools/testing/selftests/vm/userfaultfd.c
@@ -397,7 +397,7 @@ static void retry_copy_page(int ufd, struct uffdio_copy *uffdio_copy,
 	}
 }
 
-static int copy_page(int ufd, unsigned long offset)
+static int __copy_page(int ufd, unsigned long offset, bool retry)
 {
 	struct uffdio_copy uffdio_copy;
 
@@ -418,7 +418,7 @@ static int copy_page(int ufd, unsigned long offset)
 		fprintf(stderr, "UFFDIO_COPY unexpected copy %Ld\n",
 			uffdio_copy.copy), exit(1);
 	} else {
-		if (test_uffdio_copy_eexist) {
+		if (test_uffdio_copy_eexist && retry) {
 			test_uffdio_copy_eexist = false;
 			retry_copy_page(ufd, &uffdio_copy, offset);
 		}
@@ -427,6 +427,16 @@ static int copy_page(int ufd, unsigned long offset)
 	return 0;
 }
 
+static int copy_page_retry(int ufd, unsigned long offset)
+{
+	return __copy_page(ufd, offset, true);
+}
+
+static int copy_page(int ufd, unsigned long offset)
+{
+	return __copy_page(ufd, offset, false);
+}
+
 static void *uffd_poll_thread(void *arg)
 {
 	unsigned long cpu = (unsigned long) arg;
@@ -544,7 +554,7 @@ static void *background_thread(void *arg)
 	for (page_nr = cpu * nr_pages_per_cpu;
 	     page_nr < (cpu+1) * nr_pages_per_cpu;
 	     page_nr++)
-		copy_page(uffd, page_nr * page_size);
+		copy_page_retry(uffd, page_nr * page_size);
 
 	return NULL;
 }
@@ -779,7 +789,7 @@ static void retry_uffdio_zeropage(int ufd,
 	}
 }
 
-static int uffdio_zeropage(int ufd, unsigned long offset)
+static int __uffdio_zeropage(int ufd, unsigned long offset, bool retry)
 {
 	struct uffdio_zeropage uffdio_zeropage;
 	int ret;
@@ -814,7 +824,7 @@ static int uffdio_zeropage(int ufd, unsigned long offset)
 			fprintf(stderr, "UFFDIO_ZEROPAGE unexpected %Ld\n",
 				uffdio_zeropage.zeropage), exit(1);
 		} else {
-			if (test_uffdio_zeropage_eexist) {
+			if (test_uffdio_zeropage_eexist && retry) {
 				test_uffdio_zeropage_eexist = false;
 				retry_uffdio_zeropage(ufd, &uffdio_zeropage,
 						      offset);
@@ -830,6 +840,11 @@ static int uffdio_zeropage(int ufd, unsigned long offset)
 	return 0;
 }
 
+static int uffdio_zeropage(int ufd, unsigned long offset)
+{
+	return __uffdio_zeropage(ufd, offset, false);
+}
+
 /* exercise UFFDIO_ZEROPAGE */
 static int userfaultfd_zeropage_test(void)
 {
diff --git a/tools/testing/selftests/watchdog/Makefile b/tools/testing/selftests/watchdog/Makefile
index f863c664e3d1..6b5598b55252 100644
--- a/tools/testing/selftests/watchdog/Makefile
+++ b/tools/testing/selftests/watchdog/Makefile
@@ -1,8 +1,4 @@
-TEST_PROGS := watchdog-test
-
-all: $(TEST_PROGS)
+# SPDX-License-Identifier: GPL-2.0
+TEST_GEN_PROGS := watchdog-test
 
 include ../lib.mk
-
-clean:
-	rm -fr $(TEST_PROGS)
diff --git a/tools/testing/selftests/watchdog/watchdog-test.c b/tools/testing/selftests/watchdog/watchdog-test.c
index a1391be2dc1e..6e290874b70e 100644
--- a/tools/testing/selftests/watchdog/watchdog-test.c
+++ b/tools/testing/selftests/watchdog/watchdog-test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Watchdog Driver Test Program
  */
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index 97f187e2663f..7b1adeee4b0f 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 include ../lib.mk
@@ -20,7 +21,7 @@ BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
 BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
 BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
 
-CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
+CFLAGS := -O2 -g -std=gnu99 -pthread -Wall -no-pie
 
 UNAME_M := $(shell uname -m)
 CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32)
diff --git a/tools/testing/selftests/x86/entry_from_vm86.c b/tools/testing/selftests/x86/entry_from_vm86.c
index d075ea0e5ca1..361466a2eaef 100644
--- a/tools/testing/selftests/x86/entry_from_vm86.c
+++ b/tools/testing/selftests/x86/entry_from_vm86.c
@@ -95,6 +95,27 @@ asm (
 	"int3\n\t"
 	"vmcode_int80:\n\t"
 	"int $0x80\n\t"
+	"vmcode_umip:\n\t"
+	/* addressing via displacements */
+	"smsw (2052)\n\t"
+	"sidt (2054)\n\t"
+	"sgdt (2060)\n\t"
+	/* addressing via registers */
+	"mov $2066, %bx\n\t"
+	"smsw (%bx)\n\t"
+	"mov $2068, %bx\n\t"
+	"sidt (%bx)\n\t"
+	"mov $2074, %bx\n\t"
+	"sgdt (%bx)\n\t"
+	/* register operands, only for smsw */
+	"smsw %ax\n\t"
+	"mov %ax, (2080)\n\t"
+	"int3\n\t"
+	"vmcode_umip_str:\n\t"
+	"str %eax\n\t"
+	"vmcode_umip_sldt:\n\t"
+	"sldt %eax\n\t"
+	"int3\n\t"
 	".size vmcode, . - vmcode\n\t"
 	"end_vmcode:\n\t"
 	".code32\n\t"
@@ -103,7 +124,8 @@ asm (
 
 extern unsigned char vmcode[], end_vmcode[];
 extern unsigned char vmcode_bound[], vmcode_sysenter[], vmcode_syscall[],
-	vmcode_sti[], vmcode_int3[], vmcode_int80[];
+	vmcode_sti[], vmcode_int3[], vmcode_int80[], vmcode_umip[],
+	vmcode_umip_str[], vmcode_umip_sldt[];
 
 /* Returns false if the test was skipped. */
 static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
@@ -160,6 +182,68 @@ static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
 	return true;
 }
 
+void do_umip_tests(struct vm86plus_struct *vm86, unsigned char *test_mem)
+{
+	struct table_desc {
+		unsigned short limit;
+		unsigned long base;
+	} __attribute__((packed));
+
+	/* Initialize variables with arbitrary values */
+	struct table_desc gdt1 = { .base = 0x3c3c3c3c, .limit = 0x9999 };
+	struct table_desc gdt2 = { .base = 0x1a1a1a1a, .limit = 0xaeae };
+	struct table_desc idt1 = { .base = 0x7b7b7b7b, .limit = 0xf1f1 };
+	struct table_desc idt2 = { .base = 0x89898989, .limit = 0x1313 };
+	unsigned short msw1 = 0x1414, msw2 = 0x2525, msw3 = 3737;
+
+	/* UMIP -- exit with INT3 unless kernel emulation did not trap #GP */
+	do_test(vm86, vmcode_umip - vmcode, VM86_TRAP, 3, "UMIP tests");
+
+	/* Results from displacement-only addressing */
+	msw1 = *(unsigned short *)(test_mem + 2052);
+	memcpy(&idt1, test_mem + 2054, sizeof(idt1));
+	memcpy(&gdt1, test_mem + 2060, sizeof(gdt1));
+
+	/* Results from register-indirect addressing */
+	msw2 = *(unsigned short *)(test_mem + 2066);
+	memcpy(&idt2, test_mem + 2068, sizeof(idt2));
+	memcpy(&gdt2, test_mem + 2074, sizeof(gdt2));
+
+	/* Results when using register operands */
+	msw3 = *(unsigned short *)(test_mem + 2080);
+
+	printf("[INFO]\tResult from SMSW:[0x%04x]\n", msw1);
+	printf("[INFO]\tResult from SIDT: limit[0x%04x]base[0x%08lx]\n",
+	       idt1.limit, idt1.base);
+	printf("[INFO]\tResult from SGDT: limit[0x%04x]base[0x%08lx]\n",
+	       gdt1.limit, gdt1.base);
+
+	if (msw1 != msw2 || msw1 != msw3)
+		printf("[FAIL]\tAll the results of SMSW should be the same.\n");
+	else
+		printf("[PASS]\tAll the results from SMSW are identical.\n");
+
+	if (memcmp(&gdt1, &gdt2, sizeof(gdt1)))
+		printf("[FAIL]\tAll the results of SGDT should be the same.\n");
+	else
+		printf("[PASS]\tAll the results from SGDT are identical.\n");
+
+	if (memcmp(&idt1, &idt2, sizeof(idt1)))
+		printf("[FAIL]\tAll the results of SIDT should be the same.\n");
+	else
+		printf("[PASS]\tAll the results from SIDT are identical.\n");
+
+	sethandler(SIGILL, sighandler, 0);
+	do_test(vm86, vmcode_umip_str - vmcode, VM86_SIGNAL, 0,
+		"STR instruction");
+	clearhandler(SIGILL);
+
+	sethandler(SIGILL, sighandler, 0);
+	do_test(vm86, vmcode_umip_sldt - vmcode, VM86_SIGNAL, 0,
+		"SLDT instruction");
+	clearhandler(SIGILL);
+}
+
 int main(void)
 {
 	struct vm86plus_struct v86;
@@ -218,6 +302,9 @@ int main(void)
 	v86.regs.eax = (unsigned int)-1;
 	do_test(&v86, vmcode_int80 - vmcode, VM86_INTx, 0x80, "int80");
 
+	/* UMIP -- should exit with INTx 0x80 unless UMIP was not disabled */
+	do_umip_tests(&v86, addr);
+
 	/* Execute a null pointer */
 	v86.regs.cs = 0;
 	v86.regs.ss = 0;
diff --git a/tools/testing/selftests/x86/ioperm.c b/tools/testing/selftests/x86/ioperm.c
index b77313ba2ab1..01de41c1b725 100644
--- a/tools/testing/selftests/x86/ioperm.c
+++ b/tools/testing/selftests/x86/ioperm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ioperm.c - Test case for ioperm(2)
  * Copyright (c) 2015 Andrew Lutomirski
diff --git a/tools/testing/selftests/x86/iopl.c b/tools/testing/selftests/x86/iopl.c
index c496ca97bc18..6aa27f34644c 100644
--- a/tools/testing/selftests/x86/iopl.c
+++ b/tools/testing/selftests/x86/iopl.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * iopl.c - Test case for a Linux on Xen 64-bit bug
  * Copyright (c) 2015 Andrew Lutomirski
diff --git a/tools/testing/selftests/x86/ldt_gdt.c b/tools/testing/selftests/x86/ldt_gdt.c
index b9a22f18566a..66e5ce5b91f0 100644
--- a/tools/testing/selftests/x86/ldt_gdt.c
+++ b/tools/testing/selftests/x86/ldt_gdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ldt_gdt.c - Test cases for LDT and GDT access
  * Copyright (c) 2015 Andrew Lutomirski
@@ -114,7 +115,15 @@ static void check_valid_segment(uint16_t index, int ldt,
 		return;
 	}
 
-	if (ar != expected_ar) {
+	/* The SDM says "bits 19:16 are undefined".  Thanks. */
+	ar &= ~0xF0000;
+
+	/*
+	 * NB: Different Linux versions do different things with the
+	 * accessed bit in set_thread_area().
+	 */
+	if (ar != expected_ar &&
+	    (ldt || ar != (expected_ar | AR_ACCESSED))) {
 		printf("[FAIL]\t%s entry %hu has AR 0x%08X but expected 0x%08X\n",
 		       (ldt ? "LDT" : "GDT"), index, ar, expected_ar);
 		nerrs++;
@@ -128,30 +137,51 @@ static void check_valid_segment(uint16_t index, int ldt,
 	}
 }
 
-static bool install_valid_mode(const struct user_desc *desc, uint32_t ar,
-			       bool oldmode)
+static bool install_valid_mode(const struct user_desc *d, uint32_t ar,
+			       bool oldmode, bool ldt)
 {
-	int ret = syscall(SYS_modify_ldt, oldmode ? 1 : 0x11,
-			  desc, sizeof(*desc));
-	if (ret < -1)
-		errno = -ret;
+	struct user_desc desc = *d;
+	int ret;
+
+	if (!ldt) {
+#ifndef __i386__
+		/* No point testing set_thread_area in a 64-bit build */
+		return false;
+#endif
+		if (!gdt_entry_num)
+			return false;
+		desc.entry_number = gdt_entry_num;
+
+		ret = syscall(SYS_set_thread_area, &desc);
+	} else {
+		ret = syscall(SYS_modify_ldt, oldmode ? 1 : 0x11,
+			      &desc, sizeof(desc));
+
+		if (ret < -1)
+			errno = -ret;
+
+		if (ret != 0 && errno == ENOSYS) {
+			printf("[OK]\tmodify_ldt returned -ENOSYS\n");
+			return false;
+		}
+	}
+
 	if (ret == 0) {
-		uint32_t limit = desc->limit;
-		if (desc->limit_in_pages)
+		uint32_t limit = desc.limit;
+		if (desc.limit_in_pages)
 			limit = (limit << 12) + 4095;
-		check_valid_segment(desc->entry_number, 1, ar, limit, true);
+		check_valid_segment(desc.entry_number, ldt, ar, limit, true);
 		return true;
-	} else if (errno == ENOSYS) {
-		printf("[OK]\tmodify_ldt returned -ENOSYS\n");
-		return false;
 	} else {
-		if (desc->seg_32bit) {
-			printf("[FAIL]\tUnexpected modify_ldt failure %d\n",
+		if (desc.seg_32bit) {
+			printf("[FAIL]\tUnexpected %s failure %d\n",
+			       ldt ? "modify_ldt" : "set_thread_area",
 			       errno);
 			nerrs++;
 			return false;
 		} else {
-			printf("[OK]\tmodify_ldt rejected 16 bit segment\n");
+			printf("[OK]\t%s rejected 16 bit segment\n",
+			       ldt ? "modify_ldt" : "set_thread_area");
 			return false;
 		}
 	}
@@ -159,7 +189,15 @@ static bool install_valid_mode(const struct user_desc *desc, uint32_t ar,
 
 static bool install_valid(const struct user_desc *desc, uint32_t ar)
 {
-	return install_valid_mode(desc, ar, false);
+	bool ret = install_valid_mode(desc, ar, false, true);
+
+	if (desc->contents <= 1 && desc->seg_32bit &&
+	    !desc->seg_not_present) {
+		/* Should work in the GDT, too. */
+		install_valid_mode(desc, ar, false, false);
+	}
+
+	return ret;
 }
 
 static void install_invalid(const struct user_desc *desc, bool oldmode)
@@ -366,9 +404,24 @@ static void do_simple_tests(void)
 	install_invalid(&desc, false);
 
 	desc.seg_not_present = 0;
-	desc.read_exec_only = 0;
 	desc.seg_32bit = 1;
+	desc.read_exec_only = 0;
+	desc.limit = 0xfffff;
+
 	install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S | AR_P | AR_DB);
+
+	desc.limit_in_pages = 1;
+
+	install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA | AR_S | AR_P | AR_DB | AR_G);
+	desc.read_exec_only = 1;
+	install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA | AR_S | AR_P | AR_DB | AR_G);
+	desc.contents = 1;
+	desc.read_exec_only = 0;
+	install_valid(&desc, AR_DPL3 | AR_TYPE_RWDATA_EXPDOWN | AR_S | AR_P | AR_DB | AR_G);
+	desc.read_exec_only = 1;
+	install_valid(&desc, AR_DPL3 | AR_TYPE_RODATA_EXPDOWN | AR_S | AR_P | AR_DB | AR_G);
+
+	desc.limit = 0;
 	install_invalid(&desc, true);
 }
 
diff --git a/tools/testing/selftests/x86/mpx-debug.h b/tools/testing/selftests/x86/mpx-debug.h
index 9230981f2e12..7546eba7f17a 100644
--- a/tools/testing/selftests/x86/mpx-debug.h
+++ b/tools/testing/selftests/x86/mpx-debug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MPX_DEBUG_H
 #define _MPX_DEBUG_H
 
diff --git a/tools/testing/selftests/x86/mpx-dig.c b/tools/testing/selftests/x86/mpx-dig.c
index ce85356d7e2e..c13607ef5c11 100644
--- a/tools/testing/selftests/x86/mpx-dig.c
+++ b/tools/testing/selftests/x86/mpx-dig.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Written by Dave Hansen <dave.hansen@intel.com>
  */
diff --git a/tools/testing/selftests/x86/mpx-hw.h b/tools/testing/selftests/x86/mpx-hw.h
index 093c190178a9..3f0093911f03 100644
--- a/tools/testing/selftests/x86/mpx-hw.h
+++ b/tools/testing/selftests/x86/mpx-hw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MPX_HW_H
 #define _MPX_HW_H
 
diff --git a/tools/testing/selftests/x86/mpx-mm.h b/tools/testing/selftests/x86/mpx-mm.h
index af706a5398f7..6dbdd66b8242 100644
--- a/tools/testing/selftests/x86/mpx-mm.h
+++ b/tools/testing/selftests/x86/mpx-mm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _MPX_MM_H
 #define _MPX_MM_H
 
diff --git a/tools/testing/selftests/x86/pkey-helpers.h b/tools/testing/selftests/x86/pkey-helpers.h
index b20293956eec..3818f25391c2 100644
--- a/tools/testing/selftests/x86/pkey-helpers.h
+++ b/tools/testing/selftests/x86/pkey-helpers.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _PKEYS_HELPER_H
 #define _PKEYS_HELPER_H
 #define _GNU_SOURCE
diff --git a/tools/testing/selftests/x86/protection_keys.c b/tools/testing/selftests/x86/protection_keys.c
index 23927845518d..7a1cc0e56d2d 100644
--- a/tools/testing/selftests/x86/protection_keys.c
+++ b/tools/testing/selftests/x86/protection_keys.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Tests x86 Memory Protection Keys (see Documentation/x86/protection-keys.txt)
  *
@@ -188,17 +189,29 @@ void lots_o_noops_around_write(int *write_to_me)
 #define u64 uint64_t
 
 #ifdef __i386__
-#define SYS_mprotect_key 380
-#define SYS_pkey_alloc	 381
-#define SYS_pkey_free	 382
+
+#ifndef SYS_mprotect_key
+# define SYS_mprotect_key 380
+#endif
+#ifndef SYS_pkey_alloc
+# define SYS_pkey_alloc	 381
+# define SYS_pkey_free	 382
+#endif
 #define REG_IP_IDX REG_EIP
 #define si_pkey_offset 0x14
+
 #else
-#define SYS_mprotect_key 329
-#define SYS_pkey_alloc	 330
-#define SYS_pkey_free	 331
+
+#ifndef SYS_mprotect_key
+# define SYS_mprotect_key 329
+#endif
+#ifndef SYS_pkey_alloc
+# define SYS_pkey_alloc	 330
+# define SYS_pkey_free	 331
+#endif
 #define REG_IP_IDX REG_RIP
 #define si_pkey_offset 0x20
+
 #endif
 
 void dump_mem(void *dumpme, int len_bytes)
diff --git a/tools/testing/selftests/x86/ptrace_syscall.c b/tools/testing/selftests/x86/ptrace_syscall.c
index eaea92439708..1ae1c5a7392e 100644
--- a/tools/testing/selftests/x86/ptrace_syscall.c
+++ b/tools/testing/selftests/x86/ptrace_syscall.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 
 #include <sys/ptrace.h>
diff --git a/tools/testing/selftests/x86/raw_syscall_helper_32.S b/tools/testing/selftests/x86/raw_syscall_helper_32.S
index 534e71e35c6a..94410fa2b5ed 100644
--- a/tools/testing/selftests/x86/raw_syscall_helper_32.S
+++ b/tools/testing/selftests/x86/raw_syscall_helper_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 .global sys32_helper
 sys32_helper:
 	/* Args: syscall_args_32*, function pointer */
diff --git a/tools/testing/selftests/x86/test_FCMOV.c b/tools/testing/selftests/x86/test_FCMOV.c
index 4adcca0c80c4..6b5036fbb735 100644
--- a/tools/testing/selftests/x86/test_FCMOV.c
+++ b/tools/testing/selftests/x86/test_FCMOV.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef _GNU_SOURCE
 #define _GNU_SOURCE 1
 #undef __USE_GNU
diff --git a/tools/testing/selftests/x86/test_FCOMI.c b/tools/testing/selftests/x86/test_FCOMI.c
index db4933e31af9..aec6692c6dcf 100644
--- a/tools/testing/selftests/x86/test_FCOMI.c
+++ b/tools/testing/selftests/x86/test_FCOMI.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef _GNU_SOURCE
 #define _GNU_SOURCE 1
 #undef __USE_GNU
diff --git a/tools/testing/selftests/x86/test_FISTTP.c b/tools/testing/selftests/x86/test_FISTTP.c
index b8e61a047f6b..09789c0ce3e9 100644
--- a/tools/testing/selftests/x86/test_FISTTP.c
+++ b/tools/testing/selftests/x86/test_FISTTP.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #undef _GNU_SOURCE
 #define _GNU_SOURCE 1
 #undef __USE_GNU
diff --git a/tools/testing/selftests/x86/test_vdso.c b/tools/testing/selftests/x86/test_vdso.c
index 65d7a2bf7e14..29973cde06d3 100644
--- a/tools/testing/selftests/x86/test_vdso.c
+++ b/tools/testing/selftests/x86/test_vdso.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * ldt_gdt.c - Test cases for LDT and GDT access
  * Copyright (c) 2011-2015 Andrew Lutomirski
diff --git a/tools/testing/selftests/zram/Makefile b/tools/testing/selftests/zram/Makefile
index c3a87e5f9d36..7f78eb1b59cb 100644
--- a/tools/testing/selftests/zram/Makefile
+++ b/tools/testing/selftests/zram/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 TEST_PROGS := zram.sh
diff --git a/tools/testing/selftests/zram/zram.sh b/tools/testing/selftests/zram/zram.sh
index 683a292e3290..754de7da426a 100755
--- a/tools/testing/selftests/zram/zram.sh
+++ b/tools/testing/selftests/zram/zram.sh
@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
 TCID="zram.sh"
 
 . ./zram_lib.sh
diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile
index 3a961e998281..21169322baea 100644
--- a/tools/thermal/tmon/Makefile
+++ b/tools/thermal/tmon/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 VERSION = 1.0
 
 BINDIR=usr/bin
diff --git a/tools/thermal/tmon/tmon.8 b/tools/thermal/tmon/tmon.8
index 02d5179803aa..2f122de5841b 100644
--- a/tools/thermal/tmon/tmon.8
+++ b/tools/thermal/tmon/tmon.8
@@ -1,4 +1,5 @@
 .TH TMON 8
+# SPDX-License-Identifier: GPL-2.0
 .SH NAME
 \fBtmon\fP - A monitoring and testing tool for Linux kernel thermal subsystem
 
diff --git a/tools/usb/Makefile b/tools/usb/Makefile
index acf2165c04e6..4e6506078494 100644
--- a/tools/usb/Makefile
+++ b/tools/usb/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for USB tools
 
 CC = $(CROSS_COMPILE)gcc
diff --git a/tools/usb/ffs-aio-example/multibuff/host_app/Makefile b/tools/usb/ffs-aio-example/multibuff/host_app/Makefile
index 8c4a6f0aa82d..df36e4c28f61 100644
--- a/tools/usb/ffs-aio-example/multibuff/host_app/Makefile
+++ b/tools/usb/ffs-aio-example/multibuff/host_app/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC = gcc
 LIBUSB_CFLAGS = $(shell pkg-config --cflags libusb-1.0)
 LIBUSB_LIBS = $(shell pkg-config --libs libusb-1.0)
diff --git a/tools/usb/hcd-tests.sh b/tools/usb/hcd-tests.sh
index b30b3dc4c788..e8cad6a4f9c9 100644
--- a/tools/usb/hcd-tests.sh
+++ b/tools/usb/hcd-tests.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 #
 # test types can be passed on the command line:
 #
diff --git a/tools/usb/usbip/Makefile.am b/tools/usb/usbip/Makefile.am
index 66f8bf038c9f..5961e9c18812 100644
--- a/tools/usb/usbip/Makefile.am
+++ b/tools/usb/usbip/Makefile.am
@@ -1,6 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
 SUBDIRS := libsrc src
 includedir = @includedir@/usbip
 include_HEADERS := $(addprefix libsrc/, \
-		     usbip_common.h vhci_driver.h usbip_host_driver.h)
+		     usbip_common.h vhci_driver.h usbip_host_driver.h \
+		     list.h sysfs_utils.h usbip_host_common.h)
 
 dist_man_MANS := $(addprefix doc/, usbip.8 usbipd.8)
diff --git a/tools/usb/usbip/cleanup.sh b/tools/usb/usbip/cleanup.sh
index 955c3ccb729a..8028c3a5c22b 100755
--- a/tools/usb/usbip/cleanup.sh
+++ b/tools/usb/usbip/cleanup.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 if [ -r Makefile ]; then
 	make distclean
diff --git a/tools/usb/usbip/libsrc/Makefile.am b/tools/usb/usbip/libsrc/Makefile.am
index 90daf95c0804..dabd2c91d311 100644
--- a/tools/usb/usbip/libsrc/Makefile.am
+++ b/tools/usb/usbip/libsrc/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 libusbip_la_CPPFLAGS = -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
 libusbip_la_CFLAGS   = @EXTRA_CFLAGS@
 libusbip_la_LDFLAGS  = -version-info @LIBUSBIP_VERSION@
diff --git a/tools/usb/usbip/libsrc/list.h b/tools/usb/usbip/libsrc/list.h
index 5eaaa78e2c6a..a941671e4900 100644
--- a/tools/usb/usbip/libsrc/list.h
+++ b/tools/usb/usbip/libsrc/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LIST_H
 #define _LIST_H
 
diff --git a/tools/usb/usbip/libsrc/sysfs_utils.c b/tools/usb/usbip/libsrc/sysfs_utils.c
index 36ac88ece0b8..14d5e67d398a 100644
--- a/tools/usb/usbip/libsrc/sysfs_utils.c
+++ b/tools/usb/usbip/libsrc/sysfs_utils.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
diff --git a/tools/usb/usbip/libsrc/sysfs_utils.h b/tools/usb/usbip/libsrc/sysfs_utils.h
index 32ac1d105d18..0cd5f17e7eb2 100644
--- a/tools/usb/usbip/libsrc/sysfs_utils.h
+++ b/tools/usb/usbip/libsrc/sysfs_utils.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 
 #ifndef __SYSFS_UTILS_H
 #define __SYSFS_UTILS_H
diff --git a/tools/usb/usbip/libsrc/usbip_common.c b/tools/usb/usbip/libsrc/usbip_common.c
index 1517a232ab18..001bb8e8f668 100644
--- a/tools/usb/usbip/libsrc/usbip_common.c
+++ b/tools/usb/usbip/libsrc/usbip_common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2007 Takahiro Hirofuchi
  */
diff --git a/tools/usb/usbip/libsrc/usbip_common.h b/tools/usb/usbip/libsrc/usbip_common.h
index 51ef5fe485dd..e45ec9d2fdbc 100644
--- a/tools/usb/usbip/libsrc/usbip_common.h
+++ b/tools/usb/usbip/libsrc/usbip_common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2005-2007 Takahiro Hirofuchi
  */
diff --git a/tools/usb/usbip/libsrc/vhci_driver.c b/tools/usb/usbip/libsrc/vhci_driver.c
index 9bd2cd71645d..5727dfb15a83 100644
--- a/tools/usb/usbip/libsrc/vhci_driver.c
+++ b/tools/usb/usbip/libsrc/vhci_driver.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2005-2007 Takahiro Hirofuchi
  */
diff --git a/tools/usb/usbip/libsrc/vhci_driver.h b/tools/usb/usbip/libsrc/vhci_driver.h
index 4898d3bafb10..418b404d5121 100644
--- a/tools/usb/usbip/libsrc/vhci_driver.h
+++ b/tools/usb/usbip/libsrc/vhci_driver.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2005-2007 Takahiro Hirofuchi
  */
diff --git a/tools/usb/usbip/src/Makefile.am b/tools/usb/usbip/src/Makefile.am
index e81a4ebadeff..e26f39e0579d 100644
--- a/tools/usb/usbip/src/Makefile.am
+++ b/tools/usb/usbip/src/Makefile.am
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc -DUSBIDS_FILE='"@USBIDS_DIR@/usb.ids"'
 AM_CFLAGS   = @EXTRA_CFLAGS@
 LDADD       = $(top_builddir)/libsrc/libusbip.la
diff --git a/tools/usb/usbip/src/usbip_network.h b/tools/usb/usbip/src/usbip_network.h
index c1e875cf1078..7032687621d3 100644
--- a/tools/usb/usbip/src/usbip_network.h
+++ b/tools/usb/usbip/src/usbip_network.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
  * Copyright (C) 2005-2007 Takahiro Hirofuchi
  */
diff --git a/tools/virtio/Makefile b/tools/virtio/Makefile
index 39c89a5ea990..8e2a908115c2 100644
--- a/tools/virtio/Makefile
+++ b/tools/virtio/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all: test mod
 test: virtio_test vringh_test
 virtio_test: virtio_ring.o virtio_test.o
diff --git a/tools/virtio/asm/barrier.h b/tools/virtio/asm/barrier.h
index ba34f9e96efd..0ac3caf90877 100644
--- a/tools/virtio/asm/barrier.h
+++ b/tools/virtio/asm/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if defined(__i386__) || defined(__x86_64__)
 #define barrier() asm volatile("" ::: "memory")
 #define virt_mb() __sync_synchronize()
diff --git a/tools/virtio/linux/bug.h b/tools/virtio/linux/bug.h
index fb94f0787c47..b14c2c3b6b85 100644
--- a/tools/virtio/linux/bug.h
+++ b/tools/virtio/linux/bug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef BUG_H
 #define BUG_H
 
diff --git a/tools/virtio/linux/compiler.h b/tools/virtio/linux/compiler.h
index c9ccfd42ec13..903dc9c4bd11 100644
--- a/tools/virtio/linux/compiler.h
+++ b/tools/virtio/linux/compiler.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_COMPILER_H
 #define LINUX_COMPILER_H
 
diff --git a/tools/virtio/linux/dma-mapping.h b/tools/virtio/linux/dma-mapping.h
index 18601f6689b9..1571e24e9494 100644
--- a/tools/virtio/linux/dma-mapping.h
+++ b/tools/virtio/linux/dma-mapping.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_DMA_MAPPING_H
 #define _LINUX_DMA_MAPPING_H
 
diff --git a/tools/virtio/linux/err.h b/tools/virtio/linux/err.h
index e32eff8b2a14..0943c644a701 100644
--- a/tools/virtio/linux/err.h
+++ b/tools/virtio/linux/err.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef ERR_H
 #define ERR_H
 #define MAX_ERRNO	4095
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
index d9554fc3f340..395521a7a8d8 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef KERNEL_H
 #define KERNEL_H
 #include <stdbool.h>
diff --git a/tools/virtio/linux/module.h b/tools/virtio/linux/module.h
index 28ce95a05997..9dfa96fea2b2 100644
--- a/tools/virtio/linux/module.h
+++ b/tools/virtio/linux/module.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/export.h>
 
 #define MODULE_LICENSE(__MODULE_LICENSE_value) \
diff --git a/tools/virtio/linux/scatterlist.h b/tools/virtio/linux/scatterlist.h
index 68c9e2adc996..9a45f90e2d08 100644
--- a/tools/virtio/linux/scatterlist.h
+++ b/tools/virtio/linux/scatterlist.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef SCATTERLIST_H
 #define SCATTERLIST_H
 #include <linux/kernel.h>
diff --git a/tools/virtio/linux/slab.h b/tools/virtio/linux/slab.h
index 7e1c1197d439..319dcaa07755 100644
--- a/tools/virtio/linux/slab.h
+++ b/tools/virtio/linux/slab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_SLAB_H
 #define GFP_KERNEL 0
 #define GFP_ATOMIC 0
diff --git a/tools/virtio/linux/uaccess.h b/tools/virtio/linux/uaccess.h
index fa05d01b2c90..991dfb263998 100644
--- a/tools/virtio/linux/uaccess.h
+++ b/tools/virtio/linux/uaccess.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef UACCESS_H
 #define UACCESS_H
 
diff --git a/tools/virtio/linux/virtio.h b/tools/virtio/linux/virtio.h
index d8f534025b7f..b751350d4ce8 100644
--- a/tools/virtio/linux/virtio.h
+++ b/tools/virtio/linux/virtio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef LINUX_VIRTIO_H
 #define LINUX_VIRTIO_H
 #include <linux/scatterlist.h>
diff --git a/tools/virtio/linux/virtio_byteorder.h b/tools/virtio/linux/virtio_byteorder.h
index 9de9e6ac1d10..5b50f7eebd9c 100644
--- a/tools/virtio/linux/virtio_byteorder.h
+++ b/tools/virtio/linux/virtio_byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _LINUX_VIRTIO_BYTEORDER_STUB_H
 #define _LINUX_VIRTIO_BYTEORDER_STUB_H
 
diff --git a/tools/virtio/linux/virtio_config.h b/tools/virtio/linux/virtio_config.h
index 9ba11815e0a1..dbf14c1e2188 100644
--- a/tools/virtio/linux/virtio_config.h
+++ b/tools/virtio/linux/virtio_config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #include <linux/virtio_byteorder.h>
 #include <linux/virtio.h>
 #include <uapi/linux/virtio_config.h>
diff --git a/tools/virtio/ringtest/Makefile b/tools/virtio/ringtest/Makefile
index c012edbdb13b..85c98c2810fb 100644
--- a/tools/virtio/ringtest/Makefile
+++ b/tools/virtio/ringtest/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 all:
 
 all: ring virtio_ring_0_9 virtio_ring_poll virtio_ring_inorder ptr_ring noring
diff --git a/tools/virtio/ringtest/main.h b/tools/virtio/ringtest/main.h
index 90b0133004e1..5706e075adf2 100644
--- a/tools/virtio/ringtest/main.h
+++ b/tools/virtio/ringtest/main.h
@@ -110,11 +110,15 @@ static inline void busy_wait(void)
 		barrier();
 } 
 
+#if defined(__x86_64__) || defined(__i386__)
+#define smp_mb()     asm volatile("lock; addl $0,-128(%%rsp)" ::: "memory", "cc")
+#else
 /*
  * Not using __ATOMIC_SEQ_CST since gcc docs say they are only synchronized
  * with other __ATOMIC_SEQ_CST calls.
  */
 #define smp_mb() __sync_synchronize()
+#endif
 
 /*
  * This abuses the atomic builtins for thread fences, and
diff --git a/tools/virtio/ringtest/noring.c b/tools/virtio/ringtest/noring.c
index b8d1c1daac7c..ce2440d5ca93 100644
--- a/tools/virtio/ringtest/noring.c
+++ b/tools/virtio/ringtest/noring.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include "main.h"
 #include <assert.h>
diff --git a/tools/virtio/ringtest/ptr_ring.c b/tools/virtio/ringtest/ptr_ring.c
index 7b22f1b20652..38bb171aceba 100644
--- a/tools/virtio/ringtest/ptr_ring.c
+++ b/tools/virtio/ringtest/ptr_ring.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include "main.h"
 #include <stdlib.h>
diff --git a/tools/virtio/ringtest/run-on-all.sh b/tools/virtio/ringtest/run-on-all.sh
index 29b0d3920bfc..dcc3ea758f48 100755
--- a/tools/virtio/ringtest/run-on-all.sh
+++ b/tools/virtio/ringtest/run-on-all.sh
@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
 
 CPUS_ONLINE=$(lscpu --online -p=cpu|grep -v -e '#')
 #use last CPU for host. Why not the first?
diff --git a/tools/virtio/uapi/linux/virtio_ring.h b/tools/virtio/uapi/linux/virtio_ring.h
index 4d99c78234d3..cf50b2e5ff02 100644
--- a/tools/virtio/uapi/linux/virtio_ring.h
+++ b/tools/virtio/uapi/linux/virtio_ring.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef VIRTIO_RING_H
 #define VIRTIO_RING_H
 #include "../../../../include/uapi/linux/virtio_ring.h"
diff --git a/tools/virtio/virtio-trace/Makefile b/tools/virtio/virtio-trace/Makefile
index 0d2381633475..7843ebcda71d 100644
--- a/tools/virtio/virtio-trace/Makefile
+++ b/tools/virtio/virtio-trace/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 CC = gcc
 CFLAGS = -O2 -Wall -pthread
 
diff --git a/tools/virtio/virtio-trace/trace-agent.h b/tools/virtio/virtio-trace/trace-agent.h
index 8de79bfeaa73..e67885969f0e 100644
--- a/tools/virtio/virtio-trace/trace-agent.h
+++ b/tools/virtio/virtio-trace/trace-agent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __TRACE_AGENT_H__
 #define __TRACE_AGENT_H__
 #include <pthread.h>
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index 0fecaec90d0d..b427def67e7e 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #define _GNU_SOURCE
 #include <getopt.h>
 #include <string.h>
diff --git a/tools/virtio/vringh_test.c b/tools/virtio/vringh_test.c
index 9476c616d064..293653463303 100644
--- a/tools/virtio/vringh_test.c
+++ b/tools/virtio/vringh_test.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* Simple test of virtio code, entirely in userpsace. */
 #define _GNU_SOURCE
 #include <sched.h>
diff --git a/tools/vm/Makefile b/tools/vm/Makefile
index 006029456988..be320b905ea7 100644
--- a/tools/vm/Makefile
+++ b/tools/vm/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # Makefile for vm tools
 #
 TARGETS=page-types slabinfo page_owner_sort
diff --git a/tools/vm/page_owner_sort.c b/tools/vm/page_owner_sort.c
index f1c055f3c243..18fc112b65cd 100644
--- a/tools/vm/page_owner_sort.c
+++ b/tools/vm/page_owner_sort.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * User-space helper to sort the output of /sys/kernel/debug/page_owner
  *
diff --git a/tools/vm/slabinfo.c b/tools/vm/slabinfo.c
index b9d34b37c017..b0b7ef6d0de1 100644
--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Slabinfo: Tool to get reports about slabs
  *
diff --git a/usr/Kconfig b/usr/Kconfig
index d53112fdbf5a..43658b8a975e 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # Configuration for initramfs
 #
diff --git a/usr/Makefile b/usr/Makefile
index 0b87e71c00fc..237a028693ce 100644
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 #
 # kbuild file for usr/ - including initramfs image
 #
@@ -7,6 +8,7 @@ PHONY += klibcdirs
 
 suffix_y = $(subst $\",,$(CONFIG_INITRAMFS_COMPRESSION))
 datafile_y = initramfs_data.cpio$(suffix_y)
+datafile_d_y = .$(datafile_y).d
 AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/$(datafile_y)"
 
 
@@ -29,12 +31,12 @@ ramfs-args  := \
         $(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
         $(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID))
 
-# .initramfs_data.cpio.d is used to identify all files included
+# $(datafile_d_y) is used to identify all files included
 # in initramfs and to detect if any files are added/removed.
 # Removed files are identified by directory timestamp being updated
 # The dependency list is generated by gen_initramfs.sh -l
-ifneq ($(wildcard $(obj)/.initramfs_data.cpio.d),)
-	include $(obj)/.initramfs_data.cpio.d
+ifneq ($(wildcard $(obj)/$(datafile_d_y)),)
+	include $(obj)/$(datafile_d_y)
 endif
 
 quiet_cmd_initfs = GEN     $@
@@ -52,5 +54,5 @@ $(deps_initramfs): klibcdirs
 # 3) If gen_init_cpio are newer than initramfs_data.cpio
 # 4) arguments to gen_initramfs.sh changes
 $(obj)/$(datafile_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
-	$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/.initramfs_data.cpio.d
+	$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/$(datafile_d_y)
 	$(call if_changed,initfs)
diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
index 225ad244cf88..03b21189d58b 100644
--- a/usr/gen_init_cpio.c
+++ b/usr/gen_init_cpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/types.h>
diff --git a/usr/initramfs_data.S b/usr/initramfs_data.S
index c14322d1c0cf..10d325e24566 100644
--- a/usr/initramfs_data.S
+++ b/usr/initramfs_data.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 /*
   initramfs_data includes the compressed binary that is the
   filesystem used for early user space.
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
index b0cc1a34db27..70691c08e1ed 100644
--- a/virt/kvm/Kconfig
+++ b/virt/kvm/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
 # KVM common configuration items and defaults
 
 config HAVE_KVM
diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
index b9f68e4add71..95cba0799828 100644
--- a/virt/kvm/arm/arm.c
+++ b/virt/kvm/arm/arm.c
@@ -1326,21 +1326,12 @@ static void teardown_hyp_mode(void)
 {
 	int cpu;
 
-	if (is_kernel_in_hyp_mode())
-		return;
-
 	free_hyp_pgds();
 	for_each_possible_cpu(cpu)
 		free_page(per_cpu(kvm_arm_hyp_stack_page, cpu));
 	hyp_cpu_pm_exit();
 }
 
-static int init_vhe_mode(void)
-{
-	kvm_info("VHE mode initialized successfully\n");
-	return 0;
-}
-
 /**
  * Inits Hyp-mode on all online CPUs
  */
@@ -1421,8 +1412,6 @@ static int init_hyp_mode(void)
 		}
 	}
 
-	kvm_info("Hyp mode initialized successfully\n");
-
 	return 0;
 
 out_err:
@@ -1456,6 +1445,7 @@ int kvm_arch_init(void *opaque)
 {
 	int err;
 	int ret, cpu;
+	bool in_hyp_mode;
 
 	if (!is_hyp_mode_available()) {
 		kvm_err("HYP mode not available\n");
@@ -1474,21 +1464,28 @@ int kvm_arch_init(void *opaque)
 	if (err)
 		return err;
 
-	if (is_kernel_in_hyp_mode())
-		err = init_vhe_mode();
-	else
+	in_hyp_mode = is_kernel_in_hyp_mode();
+
+	if (!in_hyp_mode) {
 		err = init_hyp_mode();
-	if (err)
-		goto out_err;
+		if (err)
+			goto out_err;
+	}
 
 	err = init_subsystems();
 	if (err)
 		goto out_hyp;
 
+	if (in_hyp_mode)
+		kvm_info("VHE mode initialized successfully\n");
+	else
+		kvm_info("Hyp mode initialized successfully\n");
+
 	return 0;
 
 out_hyp:
-	teardown_hyp_mode();
+	if (!in_hyp_mode)
+		teardown_hyp_mode();
 out_err:
 	teardown_common_resources();
 	return err;
diff --git a/virt/kvm/arm/trace.h b/virt/kvm/arm/trace.h
index f7dc5ddd6847..e53b596f483b 100644
--- a/virt/kvm/arm/trace.h
+++ b/virt/kvm/arm/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_KVM_H
 
diff --git a/virt/kvm/arm/vgic/trace.h b/virt/kvm/arm/vgic/trace.h
index ed3229282888..55fed77a9f73 100644
--- a/virt/kvm/arm/vgic/trace.h
+++ b/virt/kvm/arm/vgic/trace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #if !defined(_TRACE_VGIC_H) || defined(TRACE_HEADER_MULTI_READ)
 #define _TRACE_VGIC_H
 
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
index f51c1e1b3f70..547f12dc4d54 100644
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -1466,6 +1466,16 @@ static void vgic_mmio_write_its_ctlr(struct kvm *kvm, struct vgic_its *its,
 {
 	mutex_lock(&its->cmd_lock);
 
+	/*
+	 * It is UNPREDICTABLE to enable the ITS if any of the CBASER or
+	 * device/collection BASER are invalid
+	 */
+	if (!its->enabled && (val & GITS_CTLR_ENABLE) &&
+		(!(its->baser_device_table & GITS_BASER_VALID) ||
+		 !(its->baser_coll_table & GITS_BASER_VALID) ||
+		 !(its->cbaser & GITS_CBASER_VALID)))
+		goto out;
+
 	its->enabled = !!(val & GITS_CTLR_ENABLE);
 
 	/*
@@ -1474,6 +1484,7 @@ static void vgic_mmio_write_its_ctlr(struct kvm *kvm, struct vgic_its *its,
 	 */
 	vgic_its_process_commands(kvm, its);
 
+out:
 	mutex_unlock(&its->cmd_lock);
 }
 
@@ -1801,37 +1812,33 @@ typedef int (*entry_fn_t)(struct vgic_its *its, u32 id, void *entry,
 static int scan_its_table(struct vgic_its *its, gpa_t base, int size, int esz,
 			  int start_id, entry_fn_t fn, void *opaque)
 {
-	void *entry = kzalloc(esz, GFP_KERNEL);
 	struct kvm *kvm = its->dev->kvm;
 	unsigned long len = size;
 	int id = start_id;
 	gpa_t gpa = base;
+	char entry[esz];
 	int ret;
 
+	memset(entry, 0, esz);
+
 	while (len > 0) {
 		int next_offset;
 		size_t byte_offset;
 
 		ret = kvm_read_guest(kvm, gpa, entry, esz);
 		if (ret)
-			goto out;
+			return ret;
 
 		next_offset = fn(its, id, entry, opaque);
-		if (next_offset <= 0) {
-			ret = next_offset;
-			goto out;
-		}
+		if (next_offset <= 0)
+			return next_offset;
 
 		byte_offset = next_offset * esz;
 		id += next_offset;
 		gpa += byte_offset;
 		len -= byte_offset;
 	}
-	ret =  1;
-
-out:
-	kfree(entry);
-	return ret;
+	return 1;
 }
 
 /**
@@ -1940,6 +1947,14 @@ static int vgic_its_save_itt(struct vgic_its *its, struct its_device *device)
 	return 0;
 }
 
+/**
+ * vgic_its_restore_itt - restore the ITT of a device
+ *
+ * @its: its handle
+ * @dev: device handle
+ *
+ * Return 0 on success, < 0 on error
+ */
 static int vgic_its_restore_itt(struct vgic_its *its, struct its_device *dev)
 {
 	const struct vgic_its_abi *abi = vgic_its_get_abi(its);
@@ -1951,6 +1966,10 @@ static int vgic_its_restore_itt(struct vgic_its *its, struct its_device *dev)
 	ret = scan_its_table(its, base, max_size, ite_esz, 0,
 			     vgic_its_restore_ite, dev);
 
+	/* scan_its_table returns +1 if all ITEs are invalid */
+	if (ret > 0)
+		ret = 0;
+
 	return ret;
 }
 
@@ -2048,11 +2067,12 @@ static int vgic_its_device_cmp(void *priv, struct list_head *a,
 static int vgic_its_save_device_tables(struct vgic_its *its)
 {
 	const struct vgic_its_abi *abi = vgic_its_get_abi(its);
+	u64 baser = its->baser_device_table;
 	struct its_device *dev;
 	int dte_esz = abi->dte_esz;
-	u64 baser;
 
-	baser = its->baser_device_table;
+	if (!(baser & GITS_BASER_VALID))
+		return 0;
 
 	list_sort(NULL, &its->device_list, vgic_its_device_cmp);
 
@@ -2107,10 +2127,7 @@ static int handle_l1_dte(struct vgic_its *its, u32 id, void *addr,
 	ret = scan_its_table(its, gpa, SZ_64K, dte_esz,
 			     l2_start_id, vgic_its_restore_dte, NULL);
 
-	if (ret <= 0)
-		return ret;
-
-	return 1;
+	return ret;
 }
 
 /**
@@ -2140,8 +2157,9 @@ static int vgic_its_restore_device_tables(struct vgic_its *its)
 				     vgic_its_restore_dte, NULL);
 	}
 
+	/* scan_its_table returns +1 if all entries are invalid */
 	if (ret > 0)
-		ret = -EINVAL;
+		ret = 0;
 
 	return ret;
 }
@@ -2198,17 +2216,17 @@ static int vgic_its_restore_cte(struct vgic_its *its, gpa_t gpa, int esz)
 static int vgic_its_save_collection_table(struct vgic_its *its)
 {
 	const struct vgic_its_abi *abi = vgic_its_get_abi(its);
+	u64 baser = its->baser_coll_table;
+	gpa_t gpa = BASER_ADDRESS(baser);
 	struct its_collection *collection;
 	u64 val;
-	gpa_t gpa;
 	size_t max_size, filled = 0;
 	int ret, cte_esz = abi->cte_esz;
 
-	gpa = BASER_ADDRESS(its->baser_coll_table);
-	if (!gpa)
+	if (!(baser & GITS_BASER_VALID))
 		return 0;
 
-	max_size = GITS_BASER_NR_PAGES(its->baser_coll_table) * SZ_64K;
+	max_size = GITS_BASER_NR_PAGES(baser) * SZ_64K;
 
 	list_for_each_entry(collection, &its->collection_list, coll_list) {
 		ret = vgic_its_save_cte(its, collection, gpa, cte_esz);
@@ -2239,17 +2257,18 @@ static int vgic_its_save_collection_table(struct vgic_its *its)
 static int vgic_its_restore_collection_table(struct vgic_its *its)
 {
 	const struct vgic_its_abi *abi = vgic_its_get_abi(its);
+	u64 baser = its->baser_coll_table;
 	int cte_esz = abi->cte_esz;
 	size_t max_size, read = 0;
 	gpa_t gpa;
 	int ret;
 
-	if (!(its->baser_coll_table & GITS_BASER_VALID))
+	if (!(baser & GITS_BASER_VALID))
 		return 0;
 
-	gpa = BASER_ADDRESS(its->baser_coll_table);
+	gpa = BASER_ADDRESS(baser);
 
-	max_size = GITS_BASER_NR_PAGES(its->baser_coll_table) * SZ_64K;
+	max_size = GITS_BASER_NR_PAGES(baser) * SZ_64K;
 
 	while (read < max_size) {
 		ret = vgic_its_restore_cte(its, gpa, cte_esz);
@@ -2258,6 +2277,10 @@ static int vgic_its_restore_collection_table(struct vgic_its *its)
 		gpa += cte_esz;
 		read += cte_esz;
 	}
+
+	if (ret > 0)
+		return 0;
+
 	return ret;
 }
 
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index bb298a200cd3..57bcb27dcf30 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -106,11 +106,7 @@ static void async_pf_execute(struct work_struct *work)
 
 	trace_kvm_async_pf_completed(addr, gva);
 
-	/*
-	 * This memory barrier pairs with prepare_to_wait's set_current_state()
-	 */
-	smp_mb();
-	if (swait_active(&vcpu->wq))
+	if (swq_has_sleeper(&vcpu->wq))
 		swake_up(&vcpu->wq);
 
 	mmput(mm);
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index 571c1ce37d15..9e65feb6fa58 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * KVM coalesced MMIO
  *
diff --git a/virt/kvm/coalesced_mmio.h b/virt/kvm/coalesced_mmio.h
index 6bca74ca5331..36f84264ed25 100644
--- a/virt/kvm/coalesced_mmio.h
+++ b/virt/kvm/coalesced_mmio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KVM_COALESCED_MMIO_H__
 #define __KVM_COALESCED_MMIO_H__
 
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 6ed1c2021198..ce507ae1d4f5 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -674,6 +674,7 @@ out_err_no_irq_srcu:
 out_err_no_srcu:
 	hardware_disable_all();
 out_err_no_disable:
+	refcount_set(&kvm->users_count, 0);
 	for (i = 0; i < KVM_NR_BUSES; i++)
 		kfree(kvm_get_bus(kvm, i));
 	for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
@@ -2186,7 +2187,7 @@ bool kvm_vcpu_wake_up(struct kvm_vcpu *vcpu)
 	struct swait_queue_head *wqp;
 
 	wqp = kvm_arch_vcpu_wq(vcpu);
-	if (swait_active(wqp)) {
+	if (swq_has_sleeper(wqp)) {
 		swake_up(wqp);
 		++vcpu->stat.halt_wakeup;
 		return true;
@@ -2301,7 +2302,7 @@ void kvm_vcpu_on_spin(struct kvm_vcpu *me, bool yield_to_kernel_mode)
 				continue;
 			} else if (pass && i > last_boosted_vcpu)
 				break;
-			if (!ACCESS_ONCE(vcpu->preempted))
+			if (!READ_ONCE(vcpu->preempted))
 				continue;
 			if (vcpu == me)
 				continue;
diff --git a/virt/kvm/vfio.h b/virt/kvm/vfio.h
index ab88c7dc0514..e130a4a03530 100644
--- a/virt/kvm/vfio.h
+++ b/virt/kvm/vfio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef __KVM_VFIO_H
 #define __KVM_VFIO_H